diff options
Diffstat (limited to 'drivers')
915 files changed, 28075 insertions, 10257 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index c95df0b8c880..5d9248526d78 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -235,17 +235,6 @@ config ACPI_INITRD_TABLE_OVERRIDE initrd, therefore it's safe to say Y. See Documentation/acpi/initrd_table_override.txt for details -config ACPI_BLACKLIST_YEAR - int "Disable ACPI for systems before Jan 1st this year" if X86_32 - default 0 - help - Enter a 4-digit year, e.g., 2001, to disable ACPI by default - on platforms with DMI BIOS date before January 1st that year. - "acpi=force" can be used to override this mechanism. - - Enter 0 to disable this mechanism and allow ACPI to - run by default no matter what the year. (default) - config ACPI_DEBUG bool "Debug Statements" default n diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index b9f0d5f4bba5..8711e3797165 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -56,7 +56,6 @@ static int ac_sleep_before_get_state_ms; struct acpi_ac { struct power_supply charger; - struct acpi_device *adev; struct platform_device *pdev; unsigned long long state; }; @@ -70,8 +69,9 @@ struct acpi_ac { static int acpi_ac_get_state(struct acpi_ac *ac) { acpi_status status; + acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev); - status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL, + status = acpi_evaluate_integer(handle, "_PSR", NULL, &ac->state); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, @@ -119,6 +119,7 @@ static enum power_supply_property ac_props[] = { static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) { struct acpi_ac *ac = data; + struct acpi_device *adev; if (!ac) return; @@ -141,10 +142,11 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - acpi_bus_generate_netlink_event(ac->adev->pnp.device_class, + adev = ACPI_COMPANION(&ac->pdev->dev); + acpi_bus_generate_netlink_event(adev->pnp.device_class, dev_name(&ac->pdev->dev), event, (u32) ac->state); - acpi_notifier_call_chain(ac->adev, event, (u32) ac->state); + acpi_notifier_call_chain(adev, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } @@ -178,8 +180,8 @@ static int acpi_ac_probe(struct platform_device *pdev) if (!pdev) return -EINVAL; - result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev); - if (result) + adev = ACPI_COMPANION(&pdev->dev); + if (!adev) return -ENODEV; ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); @@ -188,7 +190,6 @@ static int acpi_ac_probe(struct platform_device *pdev) strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME); strcpy(acpi_device_class(adev), ACPI_AC_CLASS); - ac->adev = adev; ac->pdev = pdev; platform_set_drvdata(pdev, ac); diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index d3961014aad7..6745fe137b9e 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -163,6 +163,15 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = { { "80860F41", (unsigned long)&byt_i2c_dev_desc }, { "INT33B2", }, + { "INT3430", (unsigned long)&lpt_dev_desc }, + { "INT3431", (unsigned long)&lpt_dev_desc }, + { "INT3432", (unsigned long)&lpt_dev_desc }, + { "INT3433", (unsigned long)&lpt_dev_desc }, + { "INT3434", (unsigned long)&lpt_uart_dev_desc }, + { "INT3435", (unsigned long)&lpt_uart_dev_desc }, + { "INT3436", (unsigned long)&lpt_sdio_dev_desc }, + { "INT3437", }, + { } }; diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 8a4cfc7e71f0..dbfe49e5fd63 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -111,7 +111,7 @@ int acpi_create_platform_device(struct acpi_device *adev, pdevinfo.id = -1; pdevinfo.res = resources; pdevinfo.num_res = count; - pdevinfo.acpi_node.handle = adev->handle; + pdevinfo.acpi_node.companion = adev; pdev = platform_device_register_full(&pdevinfo); if (IS_ERR(pdev)) { dev_err(&adev->dev, "platform device creation failed: %ld\n", diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h index f691d0e4d9fa..ff97430455cb 100644 --- a/drivers/acpi/acpica/acresrc.h +++ b/drivers/acpi/acpica/acresrc.h @@ -184,7 +184,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, struct acpi_buffer *output_buffer); acpi_status -acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, +acpi_rs_create_aml_resources(struct acpi_buffer *resource_list, struct acpi_buffer *output_buffer); acpi_status @@ -227,8 +227,8 @@ acpi_rs_get_list_length(u8 * aml_buffer, u32 aml_buffer_length, acpi_size * size_needed); acpi_status -acpi_rs_get_aml_length(struct acpi_resource *linked_list_buffer, - acpi_size * size_needed); +acpi_rs_get_aml_length(struct acpi_resource *resource_list, + acpi_size resource_list_size, acpi_size * size_needed); acpi_status acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index 243737363fb8..fd1ff54cda19 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -106,6 +106,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name) void acpi_ns_delete_node(struct acpi_namespace_node *node) { union acpi_operand_object *obj_desc; + union acpi_operand_object *next_desc; ACPI_FUNCTION_NAME(ns_delete_node); @@ -114,12 +115,13 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) acpi_ns_detach_object(node); /* - * Delete an attached data object if present (an object that was created - * and attached via acpi_attach_data). Note: After any normal object is - * detached above, the only possible remaining object is a data object. + * Delete an attached data object list if present (objects that were + * attached via acpi_attach_data). Note: After any normal object is + * detached above, the only possible remaining object(s) are data + * objects, in a linked list. */ obj_desc = node->object; - if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { + while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { /* Invoke the attached data deletion handler if present */ @@ -127,7 +129,15 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) obj_desc->data.handler(node, obj_desc->data.pointer); } + next_desc = obj_desc->common.next_object; acpi_ut_remove_reference(obj_desc); + obj_desc = next_desc; + } + + /* Special case for the statically allocated root node */ + + if (node == acpi_gbl_root_node) { + return; } /* Now we can delete the node */ diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index cc2fea94c5f0..4a0665b6bcc1 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -593,24 +593,26 @@ struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle) void acpi_ns_terminate(void) { - union acpi_operand_object *obj_desc; + acpi_status status; ACPI_FUNCTION_TRACE(ns_terminate); /* - * 1) Free the entire namespace -- all nodes and objects - * - * Delete all object descriptors attached to namepsace nodes + * Free the entire namespace -- all nodes and all objects + * attached to the nodes */ acpi_ns_delete_namespace_subtree(acpi_gbl_root_node); - /* Detach any objects attached to the root */ + /* Delete any objects attached to the root node */ - obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); - if (obj_desc) { - acpi_ns_detach_object(acpi_gbl_root_node); + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + return_VOID; } + acpi_ns_delete_node(acpi_gbl_root_node); + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n")); return_VOID; } diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index b62a0f4f4f9b..b60c9cf82862 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -174,6 +174,7 @@ acpi_rs_stream_option_length(u32 resource_length, * FUNCTION: acpi_rs_get_aml_length * * PARAMETERS: resource - Pointer to the resource linked list + * resource_list_size - Size of the resource linked list * size_needed - Where the required size is returned * * RETURN: Status @@ -185,16 +186,20 @@ acpi_rs_stream_option_length(u32 resource_length, ******************************************************************************/ acpi_status -acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) +acpi_rs_get_aml_length(struct acpi_resource *resource, + acpi_size resource_list_size, acpi_size * size_needed) { acpi_size aml_size_needed = 0; + struct acpi_resource *resource_end; acpi_rs_length total_size; ACPI_FUNCTION_TRACE(rs_get_aml_length); /* Traverse entire list of internal resource descriptors */ - while (resource) { + resource_end = + ACPI_ADD_PTR(struct acpi_resource, resource, resource_list_size); + while (resource < resource_end) { /* Validate the descriptor type */ diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c index 65f3e1c5b598..3a2ace93e62c 100644 --- a/drivers/acpi/acpica/rscreate.c +++ b/drivers/acpi/acpica/rscreate.c @@ -418,22 +418,21 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, * * FUNCTION: acpi_rs_create_aml_resources * - * PARAMETERS: linked_list_buffer - Pointer to the resource linked list - * output_buffer - Pointer to the user's buffer + * PARAMETERS: resource_list - Pointer to the resource list buffer + * output_buffer - Where the AML buffer is returned * * RETURN: Status AE_OK if okay, else a valid acpi_status code. * If the output_buffer is too small, the error will be * AE_BUFFER_OVERFLOW and output_buffer->Length will point * to the size buffer needed. * - * DESCRIPTION: Takes the linked list of device resources and - * creates a bytestream to be used as input for the - * _SRS control method. + * DESCRIPTION: Converts a list of device resources to an AML bytestream + * to be used as input for the _SRS control method. * ******************************************************************************/ acpi_status -acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, +acpi_rs_create_aml_resources(struct acpi_buffer *resource_list, struct acpi_buffer *output_buffer) { acpi_status status; @@ -441,16 +440,16 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, ACPI_FUNCTION_TRACE(rs_create_aml_resources); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n", - linked_list_buffer)); + /* Params already validated, no need to re-validate here */ - /* - * Params already validated, so we don't re-validate here - * - * Pass the linked_list_buffer into a module that calculates - * the buffer size needed for the byte stream. - */ - status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ResourceList Buffer = %p\n", + resource_list->pointer)); + + /* Get the buffer size needed for the AML byte stream */ + + status = acpi_rs_get_aml_length(resource_list->pointer, + resource_list->length, + &aml_size_needed); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n", (u32)aml_size_needed, acpi_format_exception(status))); @@ -467,10 +466,9 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, /* Do the conversion */ - status = - acpi_rs_convert_resources_to_aml(linked_list_buffer, - aml_size_needed, - output_buffer->pointer); + status = acpi_rs_convert_resources_to_aml(resource_list->pointer, + aml_size_needed, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index aef303d56d86..14a7982c9961 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -753,7 +753,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, * Convert the linked list into a byte stream */ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); + status = acpi_rs_create_aml_resources(in_buffer, &buffer); if (ACPI_FAILURE(status)) { goto cleanup; } diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 1a67b3944b3b..03ae8affe48f 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -185,6 +185,7 @@ acpi_debug_print(u32 requested_debug_level, } acpi_gbl_prev_thread_id = thread_id; + acpi_gbl_nesting_level = 0; } /* @@ -193,13 +194,21 @@ acpi_debug_print(u32 requested_debug_level, */ acpi_os_printf("%9s-%04ld ", module_name, line_number); +#ifdef ACPI_EXEC_APP + /* + * For acpi_exec only, emit the thread ID and nesting level. + * Note: nesting level is really only useful during a single-thread + * execution. Otherwise, multiple threads will keep resetting the + * level. + */ if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf("[%u] ", (u32)thread_id); } - acpi_os_printf("[%02ld] %-22.22s: ", - acpi_gbl_nesting_level, - acpi_ut_trim_function_name(function_name)); + acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level); +#endif + + acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name)); va_start(args, format); acpi_os_vprintf(format, args); @@ -420,7 +429,9 @@ acpi_ut_exit(u32 line_number, component_id, "%s\n", acpi_gbl_fn_exit_str); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_exit) @@ -467,7 +478,9 @@ acpi_ut_status_exit(u32 line_number, } } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) @@ -504,7 +517,9 @@ acpi_ut_value_exit(u32 line_number, ACPI_FORMAT_UINT64(value)); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) @@ -540,7 +555,9 @@ acpi_ut_ptr_exit(u32 line_number, ptr); } - acpi_gbl_nesting_level--; + if (acpi_gbl_nesting_level) { + acpi_gbl_nesting_level--; + } } #endif diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index fb848378d582..078c4f7fe2dd 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -75,39 +75,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = { {""} }; -#if CONFIG_ACPI_BLACKLIST_YEAR - -static int __init blacklist_by_year(void) -{ - int year; - - /* Doesn't exist? Likely an old system */ - if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) { - printk(KERN_ERR PREFIX "no DMI BIOS year, " - "acpi=force is required to enable ACPI\n" ); - return 1; - } - /* 0? Likely a buggy new BIOS */ - if (year == 0) { - printk(KERN_ERR PREFIX "DMI BIOS year==0, " - "assuming ACPI-capable machine\n" ); - return 0; - } - if (year < CONFIG_ACPI_BLACKLIST_YEAR) { - printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), " - "acpi=force is required to enable ACPI\n", - year, CONFIG_ACPI_BLACKLIST_YEAR); - return 1; - } - return 0; -} -#else -static inline int blacklist_by_year(void) -{ - return 0; -} -#endif - int __init acpi_blacklisted(void) { int i = 0; @@ -166,8 +133,6 @@ int __init acpi_blacklisted(void) } } - blacklisted += blacklist_by_year(); - dmi_check_system(acpi_osi_dmi_table); return blacklisted; diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index d42b2fb5a7e9..b3480cf7db1a 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -22,16 +22,12 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ -#include <linux/device.h> +#include <linux/acpi.h> #include <linux/export.h> #include <linux/mutex.h> #include <linux/pm_qos.h> #include <linux/pm_runtime.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #include "internal.h" #define _COMPONENT ACPI_POWER_COMPONENT @@ -548,7 +544,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev, */ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in) { - acpi_handle handle = DEVICE_ACPI_HANDLE(dev); + acpi_handle handle = ACPI_HANDLE(dev); struct acpi_device *adev; int ret, d_min, d_max; @@ -656,7 +652,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable) if (!device_run_wake(phys_dev)) return -EINVAL; - handle = DEVICE_ACPI_HANDLE(phys_dev); + handle = ACPI_HANDLE(phys_dev); if (!handle || acpi_bus_get_device(handle, &adev)) { dev_dbg(phys_dev, "ACPI handle without context in %s!\n", __func__); @@ -700,7 +696,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) if (!device_can_wakeup(dev)) return -EINVAL; - handle = DEVICE_ACPI_HANDLE(dev); + handle = ACPI_HANDLE(dev); if (!handle || acpi_bus_get_device(handle, &adev)) { dev_dbg(dev, "ACPI handle without context in %s!\n", __func__); return -ENODEV; @@ -722,7 +718,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) */ struct acpi_device *acpi_dev_pm_get_node(struct device *dev) { - acpi_handle handle = DEVICE_ACPI_HANDLE(dev); + acpi_handle handle = ACPI_HANDLE(dev); struct acpi_device *adev; return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL; diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index d5309fd49458..ba5b56db9d27 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -173,9 +173,10 @@ static void start_transaction(struct acpi_ec *ec) static void advance_transaction(struct acpi_ec *ec, u8 status) { unsigned long flags; - struct transaction *t = ec->curr; + struct transaction *t; spin_lock_irqsave(&ec->lock, flags); + t = ec->curr; if (!t) goto unlock; if (t->wlen > t->wi) { diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index fdef416c0ff6..cae3b387b867 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -78,15 +78,17 @@ enum { #define ACPI_GENL_VERSION 0x01 #define ACPI_GENL_MCAST_GROUP_NAME "acpi_mc_group" +static const struct genl_multicast_group acpi_event_mcgrps[] = { + { .name = ACPI_GENL_MCAST_GROUP_NAME, }, +}; + static struct genl_family acpi_event_genl_family = { .id = GENL_ID_GENERATE, .name = ACPI_GENL_FAMILY_NAME, .version = ACPI_GENL_VERSION, .maxattr = ACPI_GENL_ATTR_MAX, -}; - -static struct genl_multicast_group acpi_event_mcgrp = { - .name = ACPI_GENL_MCAST_GROUP_NAME, + .mcgrps = acpi_event_mcgrps, + .n_mcgrps = ARRAY_SIZE(acpi_event_mcgrps), }; int acpi_bus_generate_netlink_event(const char *device_class, @@ -141,7 +143,7 @@ int acpi_bus_generate_netlink_event(const char *device_class, return result; } - genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC); + genlmsg_multicast(&acpi_event_genl_family, skb, 0, 0, GFP_ATOMIC); return 0; } @@ -149,18 +151,7 @@ EXPORT_SYMBOL(acpi_bus_generate_netlink_event); static int acpi_event_genetlink_init(void) { - int result; - - result = genl_register_family(&acpi_event_genl_family); - if (result) - return result; - - result = genl_register_mc_group(&acpi_event_genl_family, - &acpi_event_mcgrp); - if (result) - genl_unregister_family(&acpi_event_genl_family); - - return result; + return genl_register_family(&acpi_event_genl_family); } #else diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 10f0f40587bb..a22a295edb69 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -197,30 +197,28 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id) int acpi_bind_one(struct device *dev, acpi_handle handle) { - struct acpi_device *acpi_dev; - acpi_status status; + struct acpi_device *acpi_dev = NULL; struct acpi_device_physical_node *physical_node, *pn; char physical_node_name[PHYSICAL_NODE_NAME_SIZE]; struct list_head *physnode_list; unsigned int node_id; int retval = -EINVAL; - if (ACPI_HANDLE(dev)) { + if (ACPI_COMPANION(dev)) { if (handle) { - dev_warn(dev, "ACPI handle is already set\n"); + dev_warn(dev, "ACPI companion already set\n"); return -EINVAL; } else { - handle = ACPI_HANDLE(dev); + acpi_dev = ACPI_COMPANION(dev); } + } else { + acpi_bus_get_device(handle, &acpi_dev); } - if (!handle) + if (!acpi_dev) return -EINVAL; + get_device(&acpi_dev->dev); get_device(dev); - status = acpi_bus_get_device(handle, &acpi_dev); - if (ACPI_FAILURE(status)) - goto err; - physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL); if (!physical_node) { retval = -ENOMEM; @@ -242,10 +240,11 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) dev_warn(dev, "Already associated with ACPI node\n"); kfree(physical_node); - if (ACPI_HANDLE(dev) != handle) + if (ACPI_COMPANION(dev) != acpi_dev) goto err; put_device(dev); + put_device(&acpi_dev->dev); return 0; } if (pn->node_id == node_id) { @@ -259,8 +258,8 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) list_add(&physical_node->node, physnode_list); acpi_dev->physical_node_count++; - if (!ACPI_HANDLE(dev)) - ACPI_HANDLE_SET(dev, acpi_dev->handle); + if (!ACPI_COMPANION(dev)) + ACPI_COMPANION_SET(dev, acpi_dev); acpi_physnode_link_name(physical_node_name, node_id); retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj, @@ -283,27 +282,21 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) return 0; err: - ACPI_HANDLE_SET(dev, NULL); + ACPI_COMPANION_SET(dev, NULL); put_device(dev); + put_device(&acpi_dev->dev); return retval; } EXPORT_SYMBOL_GPL(acpi_bind_one); int acpi_unbind_one(struct device *dev) { + struct acpi_device *acpi_dev = ACPI_COMPANION(dev); struct acpi_device_physical_node *entry; - struct acpi_device *acpi_dev; - acpi_status status; - if (!ACPI_HANDLE(dev)) + if (!acpi_dev) return 0; - status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev); - if (ACPI_FAILURE(status)) { - dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__); - return -EINVAL; - } - mutex_lock(&acpi_dev->physical_node_lock); list_for_each_entry(entry, &acpi_dev->physical_node_list, node) @@ -316,9 +309,10 @@ int acpi_unbind_one(struct device *dev) acpi_physnode_link_name(physnode_name, entry->node_id); sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name); sysfs_remove_link(&dev->kobj, "firmware_node"); - ACPI_HANDLE_SET(dev, NULL); - /* acpi_bind_one() increase refcnt by one. */ + ACPI_COMPANION_SET(dev, NULL); + /* Drop references taken by acpi_bind_one(). */ put_device(dev); + put_device(&acpi_dev->dev); kfree(entry); break; } @@ -328,6 +322,15 @@ int acpi_unbind_one(struct device *dev) } EXPORT_SYMBOL_GPL(acpi_unbind_one); +void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr) +{ + struct acpi_device *adev; + + if (!acpi_bus_get_device(acpi_get_child(parent, addr), &adev)) + ACPI_COMPANION_SET(dev, adev); +} +EXPORT_SYMBOL_GPL(acpi_preset_companion); + static int acpi_platform_notify(struct device *dev) { struct acpi_bus_type *type = acpi_get_bus_type(dev); diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c index 266bc58ce0ce..386a9fe497b4 100644 --- a/drivers/acpi/nvs.c +++ b/drivers/acpi/nvs.c @@ -13,7 +13,6 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <linux/acpi_io.h> -#include <acpi/acpiosxf.h> /* ACPI NVS regions, APEI may use it */ diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 56f05869b08d..20360e480bd8 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -65,6 +65,9 @@ static struct acpi_scan_handler pci_root_handler = { .ids = root_device_ids, .attach = acpi_pci_root_add, .detach = acpi_pci_root_remove, + .hotplug = { + .ignore = true, + }, }; static DEFINE_MUTEX(osc_lock); @@ -575,6 +578,7 @@ static int acpi_pci_root_add(struct acpi_device *device, dev_err(&device->dev, "Bus %04x:%02x not present in PCI namespace\n", root->segment, (unsigned int)root->secondary.start); + device->driver_data = NULL; result = -ENODEV; goto end; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 55f9dedbbf9f..fd39459926b1 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -289,24 +289,17 @@ void acpi_bus_device_eject(void *data, u32 ost_src) { struct acpi_device *device = data; acpi_handle handle = device->handle; - struct acpi_scan_handler *handler; u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; int error; lock_device_hotplug(); mutex_lock(&acpi_scan_lock); - handler = device->handler; - if (!handler || !handler->hotplug.enabled) { - put_device(&device->dev); - goto err_support; - } - if (ost_src == ACPI_NOTIFY_EJECT_REQUEST) acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - if (handler->hotplug.mode == AHM_CONTAINER) + if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); error = acpi_scan_hot_remove(device); @@ -411,8 +404,7 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) break; case ACPI_NOTIFY_EJECT_REQUEST: acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); - status = acpi_bus_get_device(handle, &adev); - if (ACPI_FAILURE(status)) + if (acpi_bus_get_device(handle, &adev)) goto err_out; get_device(&adev->dev); @@ -1780,7 +1772,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type) */ list_for_each_entry(hwid, &pnp.ids, list) { handler = acpi_scan_match_handler(hwid->id, NULL); - if (handler) { + if (handler && !handler->hotplug.ignore) { acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_hotplug_notify_cb, handler); break; @@ -1997,6 +1989,7 @@ static int acpi_bus_scan_fixed(void) if (result) return result; + device->flags.match_driver = true; result = device_attach(&device->dev); if (result < 0) return result; @@ -2013,6 +2006,7 @@ static int acpi_bus_scan_fixed(void) if (result) return result; + device->flags.match_driver = true; result = device_attach(&device->dev); } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 14df30580e15..721e949e606e 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -525,7 +525,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) * generate wakeup events. */ if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) { - acpi_event_status pwr_btn_status; + acpi_event_status pwr_btn_status = ACPI_EVENT_FLAG_DISABLED; acpi_get_event_status(ACPI_EVENT_POWER_BUTTON, &pwr_btn_status); diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index db5293650f62..6dbc3ca45223 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -309,7 +309,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, sprintf(table_attr->name + ACPI_NAME_SIZE, "%d", table_attr->instance); - table_attr->attr.size = 0; + table_attr->attr.size = table_header->length; table_attr->attr.read = acpi_table_show; table_attr->attr.attr.name = table_attr->name; table_attr->attr.attr.mode = 0400; @@ -354,8 +354,9 @@ static int acpi_tables_sysfs_init(void) { struct acpi_table_attr *table_attr; struct acpi_table_header *table_header = NULL; - int table_index = 0; - int result; + int table_index; + acpi_status status; + int ret; tables_kobj = kobject_create_and_add("tables", acpi_kobj); if (!tables_kobj) @@ -365,33 +366,34 @@ static int acpi_tables_sysfs_init(void) if (!dynamic_tables_kobj) goto err_dynamic_tables; - do { - result = acpi_get_table_by_index(table_index, &table_header); - if (!result) { - table_index++; - table_attr = NULL; - table_attr = - kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL); - if (!table_attr) - return -ENOMEM; - - acpi_table_attr_init(table_attr, table_header); - result = - sysfs_create_bin_file(tables_kobj, - &table_attr->attr); - if (result) { - kfree(table_attr); - return result; - } else - list_add_tail(&table_attr->node, - &acpi_table_attr_list); + for (table_index = 0;; table_index++) { + status = acpi_get_table_by_index(table_index, &table_header); + + if (status == AE_BAD_PARAMETER) + break; + + if (ACPI_FAILURE(status)) + continue; + + table_attr = NULL; + table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL); + if (!table_attr) + return -ENOMEM; + + acpi_table_attr_init(table_attr, table_header); + ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr); + if (ret) { + kfree(table_attr); + return ret; } - } while (!result); + list_add_tail(&table_attr->node, &acpi_table_attr_list); + } + kobject_uevent(tables_kobj, KOBJ_ADD); kobject_uevent(dynamic_tables_kobj, KOBJ_ADD); - result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); + status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); - return result == AE_OK ? 0 : -EINVAL; + return ACPI_FAILURE(status) ? -EINVAL : 0; err_dynamic_tables: kobject_put(tables_kobj); err: diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 18dbdff4656e..995e91bcb97b 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -82,13 +82,6 @@ static bool allow_duplicates; module_param(allow_duplicates, bool, 0644); /* - * Some BIOSes claim they use minimum backlight at boot, - * and this may bring dimming screen after boot - */ -static bool use_bios_initial_backlight = 1; -module_param(use_bios_initial_backlight, bool, 0644); - -/* * For Windows 8 systems: if set ture and the GPU driver has * registered a backlight interface, skip registering ACPI video's. */ @@ -406,12 +399,6 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d) return 0; } -static int video_ignore_initial_backlight(const struct dmi_system_id *d) -{ - use_bios_initial_backlight = 0; - return 0; -} - static struct dmi_system_id video_dmi_table[] __initdata = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -456,54 +443,6 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"), }, }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Folio 13-2000", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "Fujitsu E753", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"), - DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion dm4", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion g6 Notebook PC", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP 1000 Notebook PC", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion m4", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"), - }, - }, {} }; @@ -839,20 +778,18 @@ acpi_video_init_brightness(struct acpi_video_device *device) if (!device->cap._BQC) goto set_level; - if (use_bios_initial_backlight) { - level = acpi_video_bqc_value_to_level(device, level_old); - /* - * On some buggy laptops, _BQC returns an uninitialized - * value when invoked for the first time, i.e. - * level_old is invalid (no matter whether it's a level - * or an index). Set the backlight to max_level in this case. - */ - for (i = 2; i < br->count; i++) - if (level == br->levels[i]) - break; - if (i == br->count || !level) - level = max_level; - } + level = acpi_video_bqc_value_to_level(device, level_old); + /* + * On some buggy laptops, _BQC returns an uninitialized + * value when invoked for the first time, i.e. + * level_old is invalid (no matter whether it's a level + * or an index). Set the backlight to max_level in this case. + */ + for (i = 2; i < br->count; i++) + if (level == br->levels[i]) + break; + if (i == br->count || !level) + level = max_level; set_level: result = acpi_video_device_lcd_set_level(device, level); diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index ab714d2ad978..4372cfa883c9 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -185,7 +185,7 @@ void ata_acpi_bind_port(struct ata_port *ap) if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_handle) return; - ACPI_HANDLE_SET(&ap->tdev, acpi_get_child(host_handle, ap->port_no)); + acpi_preset_companion(&ap->tdev, host_handle, ap->port_no); if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0) ap->pflags |= ATA_PFLAG_INIT_GTM_VALID; @@ -222,7 +222,7 @@ void ata_acpi_bind_dev(struct ata_device *dev) parent_handle = port_handle; } - ACPI_HANDLE_SET(&dev->tdev, acpi_get_child(parent_handle, adr)); + acpi_preset_companion(&dev->tdev, parent_handle, adr); register_hotplug_dock_device(ata_dev_acpi_handle(dev), &ata_acpi_dev_dock_ops, dev, NULL, NULL); diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 853f610af28f..e88690ebfd82 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -396,8 +396,7 @@ dma_xfer(struct arasan_cf_dev *acdev, dma_addr_t src, dma_addr_t dest, u32 len) struct dma_async_tx_descriptor *tx; struct dma_chan *chan = acdev->dma_chan; dma_cookie_t cookie; - unsigned long flags = DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP | - DMA_COMPL_SKIP_DEST_UNMAP; + unsigned long flags = DMA_PREP_INTERRUPT; int ret = 0; tx = chan->device->device_prep_dma_memcpy(chan, dest, src, len, flags); diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c index 272f00927761..1bdf104e90bb 100644 --- a/drivers/atm/idt77252.c +++ b/drivers/atm/idt77252.c @@ -3511,7 +3511,7 @@ static int init_card(struct atm_dev *dev) tmp = dev_get_by_name(&init_net, tname); /* jhs: was "tmp = dev_get(tname);" */ if (tmp) { memcpy(card->atmdev->esi, tmp->dev_addr, 6); - + dev_put(tmp); printk("%s: ESI %pM\n", card->name, card->atmdev->esi); } /* diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 47051cd25113..3a94b799f166 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -432,7 +432,7 @@ struct platform_device *platform_device_register_full( goto err_alloc; pdev->dev.parent = pdevinfo->parent; - ACPI_HANDLE_SET(&pdev->dev, pdevinfo->acpi_node.handle); + ACPI_COMPANION_SET(&pdev->dev, pdevinfo->acpi_node.companion); if (pdevinfo->dma_mask) { /* @@ -463,7 +463,7 @@ struct platform_device *platform_device_register_full( ret = platform_device_add(pdev); if (ret) { err: - ACPI_HANDLE_SET(&pdev->dev, NULL); + ACPI_COMPANION_SET(&pdev->dev, NULL); kfree(pdev->dev.dma_mask); err_alloc: diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index c12e9b9556be..1b41fca3d65a 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1350,6 +1350,9 @@ static int device_prepare(struct device *dev, pm_message_t state) device_unlock(dev); + if (error) + pm_runtime_put(dev); + return error; } diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index b5d842370cc9..ea192ec029c4 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -223,7 +223,7 @@ static void null_softirq_done_fn(struct request *rq) blk_end_request_all(rq, 0); } -#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS) +#ifdef CONFIG_SMP static void null_ipi_cmd_end_io(void *data) { @@ -260,7 +260,7 @@ static void null_cmd_end_ipi(struct nullb_cmd *cmd) put_cpu(); } -#endif /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */ +#endif /* CONFIG_SMP */ static inline void null_handle_cmd(struct nullb_cmd *cmd) { @@ -270,7 +270,7 @@ static inline void null_handle_cmd(struct nullb_cmd *cmd) end_cmd(cmd); break; case NULL_IRQ_SOFTIRQ: -#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS) +#ifdef CONFIG_SMP null_cmd_end_ipi(cmd); #else end_cmd(cmd); @@ -571,7 +571,7 @@ static int __init null_init(void) { unsigned int i; -#if !defined(CONFIG_SMP) || !defined(CONFIG_USE_GENERIC_SMP_HELPERS) +#if !defined(CONFIG_SMP) if (irqmode == NULL_IRQ_SOFTIRQ) { pr_warn("null_blk: softirq completions not available.\n"); pr_warn("null_blk: using direct completions.\n"); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 588479d58f52..6a680d4de7f1 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -199,15 +199,16 @@ static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req) spin_lock_irqsave(&vblk->vq_lock, flags); if (__virtblk_add_req(vblk->vq, vbr, vbr->sg, num) < 0) { + virtqueue_kick(vblk->vq); spin_unlock_irqrestore(&vblk->vq_lock, flags); blk_mq_stop_hw_queue(hctx); - virtqueue_kick(vblk->vq); return BLK_MQ_RQ_QUEUE_BUSY; } - spin_unlock_irqrestore(&vblk->vq_lock, flags); if (last) virtqueue_kick(vblk->vq); + + spin_unlock_irqrestore(&vblk->vq_lock, flags); return BLK_MQ_RQ_QUEUE_OK; } diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index c206de2951f2..2f2b08457c67 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -165,6 +165,19 @@ config HW_RANDOM_OMAP If unsure, say Y. +config HW_RANDOM_OMAP3_ROM + tristate "OMAP3 ROM Random Number Generator support" + depends on HW_RANDOM && ARCH_OMAP3 + default HW_RANDOM + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on OMAP34xx processors. + + To compile this driver as a module, choose M here: the + module will be called omap3-rom-rng. + + If unsure, say Y. + config HW_RANDOM_OCTEON tristate "Octeon Random Number Generator support" depends on HW_RANDOM && CAVIUM_OCTEON_SOC @@ -327,3 +340,15 @@ config HW_RANDOM_TPM module will be called tpm-rng. If unsure, say Y. + +config HW_RANDOM_MSM + tristate "Qualcomm MSM Random Number Generator support" + depends on HW_RANDOM && ARCH_MSM + ---help--- + This driver provides kernel-side support for the Random Number + Generator hardware found on Qualcomm MSM SoCs. + + To compile this driver as a module, choose M here. the + module will be called msm-rng. + + If unsure, say Y. diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index d7d2435ff7fa..3ae7755a52e7 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -15,6 +15,7 @@ n2-rng-y := n2-drv.o n2-asm.o obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o +obj-$(CONFIG_HW_RANDOM_OMAP3_ROM) += omap3-rom-rng.o obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o @@ -28,3 +29,4 @@ obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o obj-$(CONFIG_HW_RANDOM_EXYNOS) += exynos-rng.o obj-$(CONFIG_HW_RANDOM_TPM) += tpm-rng.o obj-$(CONFIG_HW_RANDOM_BCM2835) += bcm2835-rng.o +obj-$(CONFIG_HW_RANDOM_MSM) += msm-rng.o diff --git a/drivers/char/hw_random/msm-rng.c b/drivers/char/hw_random/msm-rng.c new file mode 100644 index 000000000000..148521e51dc6 --- /dev/null +++ b/drivers/char/hw_random/msm-rng.c @@ -0,0 +1,197 @@ +/* + * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/hw_random.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> + +/* Device specific register offsets */ +#define PRNG_DATA_OUT 0x0000 +#define PRNG_STATUS 0x0004 +#define PRNG_LFSR_CFG 0x0100 +#define PRNG_CONFIG 0x0104 + +/* Device specific register masks and config values */ +#define PRNG_LFSR_CFG_MASK 0x0000ffff +#define PRNG_LFSR_CFG_CLOCKS 0x0000dddd +#define PRNG_CONFIG_HW_ENABLE BIT(1) +#define PRNG_STATUS_DATA_AVAIL BIT(0) + +#define MAX_HW_FIFO_DEPTH 16 +#define MAX_HW_FIFO_SIZE (MAX_HW_FIFO_DEPTH * 4) +#define WORD_SZ 4 + +struct msm_rng { + void __iomem *base; + struct clk *clk; + struct hwrng hwrng; +}; + +#define to_msm_rng(p) container_of(p, struct msm_rng, hwrng) + +static int msm_rng_enable(struct hwrng *hwrng, int enable) +{ + struct msm_rng *rng = to_msm_rng(hwrng); + u32 val; + int ret; + + ret = clk_prepare_enable(rng->clk); + if (ret) + return ret; + + if (enable) { + /* Enable PRNG only if it is not already enabled */ + val = readl_relaxed(rng->base + PRNG_CONFIG); + if (val & PRNG_CONFIG_HW_ENABLE) + goto already_enabled; + + val = readl_relaxed(rng->base + PRNG_LFSR_CFG); + val &= ~PRNG_LFSR_CFG_MASK; + val |= PRNG_LFSR_CFG_CLOCKS; + writel(val, rng->base + PRNG_LFSR_CFG); + + val = readl_relaxed(rng->base + PRNG_CONFIG); + val |= PRNG_CONFIG_HW_ENABLE; + writel(val, rng->base + PRNG_CONFIG); + } else { + val = readl_relaxed(rng->base + PRNG_CONFIG); + val &= ~PRNG_CONFIG_HW_ENABLE; + writel(val, rng->base + PRNG_CONFIG); + } + +already_enabled: + clk_disable_unprepare(rng->clk); + return 0; +} + +static int msm_rng_read(struct hwrng *hwrng, void *data, size_t max, bool wait) +{ + struct msm_rng *rng = to_msm_rng(hwrng); + size_t currsize = 0; + u32 *retdata = data; + size_t maxsize; + int ret; + u32 val; + + /* calculate max size bytes to transfer back to caller */ + maxsize = min_t(size_t, MAX_HW_FIFO_SIZE, max); + + /* no room for word data */ + if (maxsize < WORD_SZ) + return 0; + + ret = clk_prepare_enable(rng->clk); + if (ret) + return ret; + + /* read random data from hardware */ + do { + val = readl_relaxed(rng->base + PRNG_STATUS); + if (!(val & PRNG_STATUS_DATA_AVAIL)) + break; + + val = readl_relaxed(rng->base + PRNG_DATA_OUT); + if (!val) + break; + + *retdata++ = val; + currsize += WORD_SZ; + + /* make sure we stay on 32bit boundary */ + if ((maxsize - currsize) < WORD_SZ) + break; + } while (currsize < maxsize); + + clk_disable_unprepare(rng->clk); + + return currsize; +} + +static int msm_rng_init(struct hwrng *hwrng) +{ + return msm_rng_enable(hwrng, 1); +} + +static void msm_rng_cleanup(struct hwrng *hwrng) +{ + msm_rng_enable(hwrng, 0); +} + +static int msm_rng_probe(struct platform_device *pdev) +{ + struct resource *res; + struct msm_rng *rng; + int ret; + + rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL); + if (!rng) + return -ENOMEM; + + platform_set_drvdata(pdev, rng); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + rng->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(rng->base)) + return PTR_ERR(rng->base); + + rng->clk = devm_clk_get(&pdev->dev, "core"); + if (IS_ERR(rng->clk)) + return PTR_ERR(rng->clk); + + rng->hwrng.name = KBUILD_MODNAME, + rng->hwrng.init = msm_rng_init, + rng->hwrng.cleanup = msm_rng_cleanup, + rng->hwrng.read = msm_rng_read, + + ret = hwrng_register(&rng->hwrng); + if (ret) { + dev_err(&pdev->dev, "failed to register hwrng\n"); + return ret; + } + + return 0; +} + +static int msm_rng_remove(struct platform_device *pdev) +{ + struct msm_rng *rng = platform_get_drvdata(pdev); + + hwrng_unregister(&rng->hwrng); + return 0; +} + +static const struct of_device_id msm_rng_of_match[] = { + { .compatible = "qcom,prng", }, + {} +}; +MODULE_DEVICE_TABLE(of, msm_rng_of_match); + +static struct platform_driver msm_rng_driver = { + .probe = msm_rng_probe, + .remove = msm_rng_remove, + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(msm_rng_of_match), + } +}; +module_platform_driver(msm_rng_driver); + +MODULE_ALIAS("platform:" KBUILD_MODNAME); +MODULE_AUTHOR("The Linux Foundation"); +MODULE_DESCRIPTION("Qualcomm MSM random number generator driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c new file mode 100644 index 000000000000..c853e9e68573 --- /dev/null +++ b/drivers/char/hw_random/omap3-rom-rng.c @@ -0,0 +1,141 @@ +/* + * omap3-rom-rng.c - RNG driver for TI OMAP3 CPU family + * + * Copyright (C) 2009 Nokia Corporation + * Author: Juha Yrjola <juha.yrjola@solidboot.com> + * + * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/random.h> +#include <linux/hw_random.h> +#include <linux/timer.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/platform_device.h> + +#define RNG_RESET 0x01 +#define RNG_GEN_PRNG_HW_INIT 0x02 +#define RNG_GEN_HW 0x08 + +/* param1: ptr, param2: count, param3: flag */ +static u32 (*omap3_rom_rng_call)(u32, u32, u32); + +static struct timer_list idle_timer; +static int rng_idle; +static struct clk *rng_clk; + +static void omap3_rom_rng_idle(unsigned long data) +{ + int r; + + r = omap3_rom_rng_call(0, 0, RNG_RESET); + if (r != 0) { + pr_err("reset failed: %d\n", r); + return; + } + clk_disable_unprepare(rng_clk); + rng_idle = 1; +} + +static int omap3_rom_rng_get_random(void *buf, unsigned int count) +{ + u32 r; + u32 ptr; + + del_timer_sync(&idle_timer); + if (rng_idle) { + clk_prepare_enable(rng_clk); + r = omap3_rom_rng_call(0, 0, RNG_GEN_PRNG_HW_INIT); + if (r != 0) { + clk_disable_unprepare(rng_clk); + pr_err("HW init failed: %d\n", r); + return -EIO; + } + rng_idle = 0; + } + + ptr = virt_to_phys(buf); + r = omap3_rom_rng_call(ptr, count, RNG_GEN_HW); + mod_timer(&idle_timer, jiffies + msecs_to_jiffies(500)); + if (r != 0) + return -EINVAL; + return 0; +} + +static int omap3_rom_rng_data_present(struct hwrng *rng, int wait) +{ + return 1; +} + +static int omap3_rom_rng_data_read(struct hwrng *rng, u32 *data) +{ + int r; + + r = omap3_rom_rng_get_random(data, 4); + if (r < 0) + return r; + return 4; +} + +static struct hwrng omap3_rom_rng_ops = { + .name = "omap3-rom", + .data_present = omap3_rom_rng_data_present, + .data_read = omap3_rom_rng_data_read, +}; + +static int omap3_rom_rng_probe(struct platform_device *pdev) +{ + pr_info("initializing\n"); + + omap3_rom_rng_call = pdev->dev.platform_data; + if (!omap3_rom_rng_call) { + pr_err("omap3_rom_rng_call is NULL\n"); + return -EINVAL; + } + + setup_timer(&idle_timer, omap3_rom_rng_idle, 0); + rng_clk = clk_get(&pdev->dev, "ick"); + if (IS_ERR(rng_clk)) { + pr_err("unable to get RNG clock\n"); + return PTR_ERR(rng_clk); + } + + /* Leave the RNG in reset state. */ + clk_prepare_enable(rng_clk); + omap3_rom_rng_idle(0); + + return hwrng_register(&omap3_rom_rng_ops); +} + +static int omap3_rom_rng_remove(struct platform_device *pdev) +{ + hwrng_unregister(&omap3_rom_rng_ops); + clk_disable_unprepare(rng_clk); + clk_put(rng_clk); + return 0; +} + +static struct platform_driver omap3_rom_rng_driver = { + .driver = { + .name = "omap3-rom-rng", + .owner = THIS_MODULE, + }, + .probe = omap3_rom_rng_probe, + .remove = omap3_rom_rng_remove, +}; + +module_platform_driver(omap3_rom_rng_driver); + +MODULE_ALIAS("platform:omap3-rom-rng"); +MODULE_AUTHOR("Juha Yrjola"); +MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c index b761459a3436..ab7ffdec0ec3 100644 --- a/drivers/char/hw_random/pseries-rng.c +++ b/drivers/char/hw_random/pseries-rng.c @@ -24,7 +24,6 @@ #include <linux/hw_random.h> #include <asm/vio.h> -#define MODULE_NAME "pseries-rng" static int pseries_rng_data_read(struct hwrng *rng, u32 *data) { @@ -55,7 +54,7 @@ static unsigned long pseries_rng_get_desired_dma(struct vio_dev *vdev) }; static struct hwrng pseries_rng = { - .name = MODULE_NAME, + .name = KBUILD_MODNAME, .data_read = pseries_rng_data_read, }; @@ -78,7 +77,7 @@ static struct vio_device_id pseries_rng_driver_ids[] = { MODULE_DEVICE_TABLE(vio, pseries_rng_driver_ids); static struct vio_driver pseries_rng_driver = { - .name = MODULE_NAME, + .name = KBUILD_MODNAME, .probe = pseries_rng_probe, .remove = pseries_rng_remove, .get_desired_dma = pseries_rng_get_desired_dma, diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c index e737772ad69a..de5a6dcfb3e2 100644 --- a/drivers/char/hw_random/via-rng.c +++ b/drivers/char/hw_random/via-rng.c @@ -221,7 +221,7 @@ static void __exit mod_exit(void) module_init(mod_init); module_exit(mod_exit); -static struct x86_cpu_id via_rng_cpu_id[] = { +static struct x86_cpu_id __maybe_unused via_rng_cpu_id[] = { X86_FEATURE_MATCH(X86_FEATURE_XSTORE), {} }; diff --git a/drivers/char/random.c b/drivers/char/random.c index 4fe5609eeb72..429b75bb60e8 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -255,6 +255,7 @@ #include <linux/fips.h> #include <linux/ptrace.h> #include <linux/kmemcheck.h> +#include <linux/workqueue.h> #include <linux/irq.h> #include <asm/processor.h> @@ -269,14 +270,28 @@ /* * Configuration information */ -#define INPUT_POOL_WORDS 128 -#define OUTPUT_POOL_WORDS 32 -#define SEC_XFER_SIZE 512 -#define EXTRACT_SIZE 10 +#define INPUT_POOL_SHIFT 12 +#define INPUT_POOL_WORDS (1 << (INPUT_POOL_SHIFT-5)) +#define OUTPUT_POOL_SHIFT 10 +#define OUTPUT_POOL_WORDS (1 << (OUTPUT_POOL_SHIFT-5)) +#define SEC_XFER_SIZE 512 +#define EXTRACT_SIZE 10 + +#define DEBUG_RANDOM_BOOT 0 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long)) /* + * To allow fractional bits to be tracked, the entropy_count field is + * denominated in units of 1/8th bits. + * + * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in + * credit_entropy_bits() needs to be 64 bits wide. + */ +#define ENTROPY_SHIFT 3 +#define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT) + +/* * The minimum number of bits of entropy before we wake up a read on * /dev/random. Should be enough to do a significant reseed. */ @@ -287,108 +302,100 @@ static int random_read_wakeup_thresh = 64; * should wake up processes which are selecting or polling on write * access to /dev/random. */ -static int random_write_wakeup_thresh = 128; +static int random_write_wakeup_thresh = 28 * OUTPUT_POOL_WORDS; /* - * When the input pool goes over trickle_thresh, start dropping most - * samples to avoid wasting CPU time and reduce lock contention. + * The minimum number of seconds between urandom pool resending. We + * do this to limit the amount of entropy that can be drained from the + * input pool even if there are heavy demands on /dev/urandom. */ - -static int trickle_thresh __read_mostly = INPUT_POOL_WORDS * 28; - -static DEFINE_PER_CPU(int, trickle_count); +static int random_min_urandom_seed = 60; /* - * A pool of size .poolwords is stirred with a primitive polynomial - * of degree .poolwords over GF(2). The taps for various sizes are - * defined below. They are chosen to be evenly spaced (minimum RMS - * distance from evenly spaced; the numbers in the comments are a - * scaled squared error sum) except for the last tap, which is 1 to - * get the twisting happening as fast as possible. + * Originally, we used a primitive polynomial of degree .poolwords + * over GF(2). The taps for various sizes are defined below. They + * were chosen to be evenly spaced except for the last tap, which is 1 + * to get the twisting happening as fast as possible. + * + * For the purposes of better mixing, we use the CRC-32 polynomial as + * well to make a (modified) twisted Generalized Feedback Shift + * Register. (See M. Matsumoto & Y. Kurita, 1992. Twisted GFSR + * generators. ACM Transactions on Modeling and Computer Simulation + * 2(3):179-194. Also see M. Matsumoto & Y. Kurita, 1994. Twisted + * GFSR generators II. ACM Transactions on Mdeling and Computer + * Simulation 4:254-266) + * + * Thanks to Colin Plumb for suggesting this. + * + * The mixing operation is much less sensitive than the output hash, + * where we use SHA-1. All that we want of mixing operation is that + * it be a good non-cryptographic hash; i.e. it not produce collisions + * when fed "random" data of the sort we expect to see. As long as + * the pool state differs for different inputs, we have preserved the + * input entropy and done a good job. The fact that an intelligent + * attacker can construct inputs that will produce controlled + * alterations to the pool's state is not important because we don't + * consider such inputs to contribute any randomness. The only + * property we need with respect to them is that the attacker can't + * increase his/her knowledge of the pool's state. Since all + * additions are reversible (knowing the final state and the input, + * you can reconstruct the initial state), if an attacker has any + * uncertainty about the initial state, he/she can only shuffle that + * uncertainty about, but never cause any collisions (which would + * decrease the uncertainty). + * + * Our mixing functions were analyzed by Lacharme, Roeck, Strubel, and + * Videau in their paper, "The Linux Pseudorandom Number Generator + * Revisited" (see: http://eprint.iacr.org/2012/251.pdf). In their + * paper, they point out that we are not using a true Twisted GFSR, + * since Matsumoto & Kurita used a trinomial feedback polynomial (that + * is, with only three taps, instead of the six that we are using). + * As a result, the resulting polynomial is neither primitive nor + * irreducible, and hence does not have a maximal period over + * GF(2**32). They suggest a slight change to the generator + * polynomial which improves the resulting TGFSR polynomial to be + * irreducible, which we have made here. */ static struct poolinfo { - int poolwords; + int poolbitshift, poolwords, poolbytes, poolbits, poolfracbits; +#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5) int tap1, tap2, tap3, tap4, tap5; } poolinfo_table[] = { - /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ - { 128, 103, 76, 51, 25, 1 }, - /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ - { 32, 26, 20, 14, 7, 1 }, + /* was: x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 */ + /* x^128 + x^104 + x^76 + x^51 +x^25 + x + 1 */ + { S(128), 104, 76, 51, 25, 1 }, + /* was: x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 */ + /* x^32 + x^26 + x^19 + x^14 + x^7 + x + 1 */ + { S(32), 26, 19, 14, 7, 1 }, #if 0 /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ - { 2048, 1638, 1231, 819, 411, 1 }, + { S(2048), 1638, 1231, 819, 411, 1 }, /* x^1024 + x^817 + x^615 + x^412 + x^204 + x + 1 -- 290 */ - { 1024, 817, 615, 412, 204, 1 }, + { S(1024), 817, 615, 412, 204, 1 }, /* x^1024 + x^819 + x^616 + x^410 + x^207 + x^2 + 1 -- 115 */ - { 1024, 819, 616, 410, 207, 2 }, + { S(1024), 819, 616, 410, 207, 2 }, /* x^512 + x^411 + x^308 + x^208 + x^104 + x + 1 -- 225 */ - { 512, 411, 308, 208, 104, 1 }, + { S(512), 411, 308, 208, 104, 1 }, /* x^512 + x^409 + x^307 + x^206 + x^102 + x^2 + 1 -- 95 */ - { 512, 409, 307, 206, 102, 2 }, + { S(512), 409, 307, 206, 102, 2 }, /* x^512 + x^409 + x^309 + x^205 + x^103 + x^2 + 1 -- 95 */ - { 512, 409, 309, 205, 103, 2 }, + { S(512), 409, 309, 205, 103, 2 }, /* x^256 + x^205 + x^155 + x^101 + x^52 + x + 1 -- 125 */ - { 256, 205, 155, 101, 52, 1 }, + { S(256), 205, 155, 101, 52, 1 }, /* x^128 + x^103 + x^78 + x^51 + x^27 + x^2 + 1 -- 70 */ - { 128, 103, 78, 51, 27, 2 }, + { S(128), 103, 78, 51, 27, 2 }, /* x^64 + x^52 + x^39 + x^26 + x^14 + x + 1 -- 15 */ - { 64, 52, 39, 26, 14, 1 }, + { S(64), 52, 39, 26, 14, 1 }, #endif }; -#define POOLBITS poolwords*32 -#define POOLBYTES poolwords*4 - -/* - * For the purposes of better mixing, we use the CRC-32 polynomial as - * well to make a twisted Generalized Feedback Shift Reigster - * - * (See M. Matsumoto & Y. Kurita, 1992. Twisted GFSR generators. ACM - * Transactions on Modeling and Computer Simulation 2(3):179-194. - * Also see M. Matsumoto & Y. Kurita, 1994. Twisted GFSR generators - * II. ACM Transactions on Mdeling and Computer Simulation 4:254-266) - * - * Thanks to Colin Plumb for suggesting this. - * - * We have not analyzed the resultant polynomial to prove it primitive; - * in fact it almost certainly isn't. Nonetheless, the irreducible factors - * of a random large-degree polynomial over GF(2) are more than large enough - * that periodicity is not a concern. - * - * The input hash is much less sensitive than the output hash. All - * that we want of it is that it be a good non-cryptographic hash; - * i.e. it not produce collisions when fed "random" data of the sort - * we expect to see. As long as the pool state differs for different - * inputs, we have preserved the input entropy and done a good job. - * The fact that an intelligent attacker can construct inputs that - * will produce controlled alterations to the pool's state is not - * important because we don't consider such inputs to contribute any - * randomness. The only property we need with respect to them is that - * the attacker can't increase his/her knowledge of the pool's state. - * Since all additions are reversible (knowing the final state and the - * input, you can reconstruct the initial state), if an attacker has - * any uncertainty about the initial state, he/she can only shuffle - * that uncertainty about, but never cause any collisions (which would - * decrease the uncertainty). - * - * The chosen system lets the state of the pool be (essentially) the input - * modulo the generator polymnomial. Now, for random primitive polynomials, - * this is a universal class of hash functions, meaning that the chance - * of a collision is limited by the attacker's knowledge of the generator - * polynomail, so if it is chosen at random, an attacker can never force - * a collision. Here, we use a fixed polynomial, but we *can* assume that - * ###--> it is unknown to the processes generating the input entropy. <-### - * Because of this important property, this is a good, collision-resistant - * hash; hash collisions will occur no more often than chance. - */ - /* * Static global variables */ @@ -396,17 +403,6 @@ static DECLARE_WAIT_QUEUE_HEAD(random_read_wait); static DECLARE_WAIT_QUEUE_HEAD(random_write_wait); static struct fasync_struct *fasync; -static bool debug; -module_param(debug, bool, 0644); -#define DEBUG_ENT(fmt, arg...) do { \ - if (debug) \ - printk(KERN_DEBUG "random %04d %04d %04d: " \ - fmt,\ - input_pool.entropy_count,\ - blocking_pool.entropy_count,\ - nonblocking_pool.entropy_count,\ - ## arg); } while (0) - /********************************************************************** * * OS independent entropy store. Here are the functions which handle @@ -417,23 +413,26 @@ module_param(debug, bool, 0644); struct entropy_store; struct entropy_store { /* read-only data: */ - struct poolinfo *poolinfo; + const struct poolinfo *poolinfo; __u32 *pool; const char *name; struct entropy_store *pull; - int limit; + struct work_struct push_work; /* read-write data: */ + unsigned long last_pulled; spinlock_t lock; - unsigned add_ptr; - unsigned input_rotate; + unsigned short add_ptr; + unsigned short input_rotate; int entropy_count; int entropy_total; unsigned int initialized:1; - bool last_data_init; + unsigned int limit:1; + unsigned int last_data_init:1; __u8 last_data[EXTRACT_SIZE]; }; +static void push_to_pool(struct work_struct *work); static __u32 input_pool_data[INPUT_POOL_WORDS]; static __u32 blocking_pool_data[OUTPUT_POOL_WORDS]; static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS]; @@ -452,7 +451,9 @@ static struct entropy_store blocking_pool = { .limit = 1, .pull = &input_pool, .lock = __SPIN_LOCK_UNLOCKED(blocking_pool.lock), - .pool = blocking_pool_data + .pool = blocking_pool_data, + .push_work = __WORK_INITIALIZER(blocking_pool.push_work, + push_to_pool), }; static struct entropy_store nonblocking_pool = { @@ -460,7 +461,9 @@ static struct entropy_store nonblocking_pool = { .name = "nonblocking", .pull = &input_pool, .lock = __SPIN_LOCK_UNLOCKED(nonblocking_pool.lock), - .pool = nonblocking_pool_data + .pool = nonblocking_pool_data, + .push_work = __WORK_INITIALIZER(nonblocking_pool.push_work, + push_to_pool), }; static __u32 const twist_table[8] = { @@ -498,7 +501,7 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in, /* mix one byte at a time to simplify size handling and churn faster */ while (nbytes--) { - w = rol32(*bytes++, input_rotate & 31); + w = rol32(*bytes++, input_rotate); i = (i - 1) & wordmask; /* XOR in the various taps */ @@ -518,7 +521,7 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in, * rotation, so that successive passes spread the * input bits across the pool evenly. */ - input_rotate += i ? 7 : 14; + input_rotate = (input_rotate + (i ? 7 : 14)) & 31; } ACCESS_ONCE(r->input_rotate) = input_rotate; @@ -561,65 +564,151 @@ struct fast_pool { * collector. It's hardcoded for an 128 bit pool and assumes that any * locks that might be needed are taken by the caller. */ -static void fast_mix(struct fast_pool *f, const void *in, int nbytes) +static void fast_mix(struct fast_pool *f, __u32 input[4]) { - const char *bytes = in; __u32 w; - unsigned i = f->count; unsigned input_rotate = f->rotate; - while (nbytes--) { - w = rol32(*bytes++, input_rotate & 31) ^ f->pool[i & 3] ^ - f->pool[(i + 1) & 3]; - f->pool[i & 3] = (w >> 3) ^ twist_table[w & 7]; - input_rotate += (i++ & 3) ? 7 : 14; - } - f->count = i; + w = rol32(input[0], input_rotate) ^ f->pool[0] ^ f->pool[3]; + f->pool[0] = (w >> 3) ^ twist_table[w & 7]; + input_rotate = (input_rotate + 14) & 31; + w = rol32(input[1], input_rotate) ^ f->pool[1] ^ f->pool[0]; + f->pool[1] = (w >> 3) ^ twist_table[w & 7]; + input_rotate = (input_rotate + 7) & 31; + w = rol32(input[2], input_rotate) ^ f->pool[2] ^ f->pool[1]; + f->pool[2] = (w >> 3) ^ twist_table[w & 7]; + input_rotate = (input_rotate + 7) & 31; + w = rol32(input[3], input_rotate) ^ f->pool[3] ^ f->pool[2]; + f->pool[3] = (w >> 3) ^ twist_table[w & 7]; + input_rotate = (input_rotate + 7) & 31; + f->rotate = input_rotate; + f->count++; } /* - * Credit (or debit) the entropy store with n bits of entropy + * Credit (or debit) the entropy store with n bits of entropy. + * Use credit_entropy_bits_safe() if the value comes from userspace + * or otherwise should be checked for extreme values. */ static void credit_entropy_bits(struct entropy_store *r, int nbits) { int entropy_count, orig; + const int pool_size = r->poolinfo->poolfracbits; + int nfrac = nbits << ENTROPY_SHIFT; if (!nbits) return; - DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name); retry: entropy_count = orig = ACCESS_ONCE(r->entropy_count); - entropy_count += nbits; + if (nfrac < 0) { + /* Debit */ + entropy_count += nfrac; + } else { + /* + * Credit: we have to account for the possibility of + * overwriting already present entropy. Even in the + * ideal case of pure Shannon entropy, new contributions + * approach the full value asymptotically: + * + * entropy <- entropy + (pool_size - entropy) * + * (1 - exp(-add_entropy/pool_size)) + * + * For add_entropy <= pool_size/2 then + * (1 - exp(-add_entropy/pool_size)) >= + * (add_entropy/pool_size)*0.7869... + * so we can approximate the exponential with + * 3/4*add_entropy/pool_size and still be on the + * safe side by adding at most pool_size/2 at a time. + * + * The use of pool_size-2 in the while statement is to + * prevent rounding artifacts from making the loop + * arbitrarily long; this limits the loop to log2(pool_size)*2 + * turns no matter how large nbits is. + */ + int pnfrac = nfrac; + const int s = r->poolinfo->poolbitshift + ENTROPY_SHIFT + 2; + /* The +2 corresponds to the /4 in the denominator */ + + do { + unsigned int anfrac = min(pnfrac, pool_size/2); + unsigned int add = + ((pool_size - entropy_count)*anfrac*3) >> s; + + entropy_count += add; + pnfrac -= anfrac; + } while (unlikely(entropy_count < pool_size-2 && pnfrac)); + } if (entropy_count < 0) { - DEBUG_ENT("negative entropy/overflow\n"); + pr_warn("random: negative entropy/overflow: pool %s count %d\n", + r->name, entropy_count); + WARN_ON(1); entropy_count = 0; - } else if (entropy_count > r->poolinfo->POOLBITS) - entropy_count = r->poolinfo->POOLBITS; + } else if (entropy_count > pool_size) + entropy_count = pool_size; if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) goto retry; - if (!r->initialized && nbits > 0) { - r->entropy_total += nbits; - if (r->entropy_total > 128) { - r->initialized = 1; - if (r == &nonblocking_pool) - prandom_reseed_late(); + r->entropy_total += nbits; + if (!r->initialized && r->entropy_total > 128) { + r->initialized = 1; + r->entropy_total = 0; + if (r == &nonblocking_pool) { + prandom_reseed_late(); + pr_notice("random: %s pool is initialized\n", r->name); } } - trace_credit_entropy_bits(r->name, nbits, entropy_count, + trace_credit_entropy_bits(r->name, nbits, + entropy_count >> ENTROPY_SHIFT, r->entropy_total, _RET_IP_); - /* should we wake readers? */ - if (r == &input_pool && entropy_count >= random_read_wakeup_thresh) { - wake_up_interruptible(&random_read_wait); - kill_fasync(&fasync, SIGIO, POLL_IN); + if (r == &input_pool) { + int entropy_bytes = entropy_count >> ENTROPY_SHIFT; + + /* should we wake readers? */ + if (entropy_bytes >= random_read_wakeup_thresh) { + wake_up_interruptible(&random_read_wait); + kill_fasync(&fasync, SIGIO, POLL_IN); + } + /* If the input pool is getting full, send some + * entropy to the two output pools, flipping back and + * forth between them, until the output pools are 75% + * full. + */ + if (entropy_bytes > random_write_wakeup_thresh && + r->initialized && + r->entropy_total >= 2*random_read_wakeup_thresh) { + static struct entropy_store *last = &blocking_pool; + struct entropy_store *other = &blocking_pool; + + if (last == &blocking_pool) + other = &nonblocking_pool; + if (other->entropy_count <= + 3 * other->poolinfo->poolfracbits / 4) + last = other; + if (last->entropy_count <= + 3 * last->poolinfo->poolfracbits / 4) { + schedule_work(&last->push_work); + r->entropy_total = 0; + } + } } } +static void credit_entropy_bits_safe(struct entropy_store *r, int nbits) +{ + const int nbits_max = (int)(~0U >> (ENTROPY_SHIFT + 1)); + + /* Cap the value to avoid overflows */ + nbits = min(nbits, nbits_max); + nbits = max(nbits, -nbits_max); + + credit_entropy_bits(r, nbits); +} + /********************************************************************* * * Entropy input management @@ -633,6 +722,8 @@ struct timer_rand_state { unsigned dont_count_entropy:1; }; +#define INIT_TIMER_RAND_STATE { INITIAL_JIFFIES, }; + /* * Add device- or boot-specific data to the input and nonblocking * pools to help initialize them to unique values. @@ -644,15 +735,22 @@ struct timer_rand_state { void add_device_randomness(const void *buf, unsigned int size) { unsigned long time = random_get_entropy() ^ jiffies; + unsigned long flags; - mix_pool_bytes(&input_pool, buf, size, NULL); - mix_pool_bytes(&input_pool, &time, sizeof(time), NULL); - mix_pool_bytes(&nonblocking_pool, buf, size, NULL); - mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL); + trace_add_device_randomness(size, _RET_IP_); + spin_lock_irqsave(&input_pool.lock, flags); + _mix_pool_bytes(&input_pool, buf, size, NULL); + _mix_pool_bytes(&input_pool, &time, sizeof(time), NULL); + spin_unlock_irqrestore(&input_pool.lock, flags); + + spin_lock_irqsave(&nonblocking_pool.lock, flags); + _mix_pool_bytes(&nonblocking_pool, buf, size, NULL); + _mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL); + spin_unlock_irqrestore(&nonblocking_pool.lock, flags); } EXPORT_SYMBOL(add_device_randomness); -static struct timer_rand_state input_timer_state; +static struct timer_rand_state input_timer_state = INIT_TIMER_RAND_STATE; /* * This function adds entropy to the entropy "pool" by using timing @@ -666,6 +764,7 @@ static struct timer_rand_state input_timer_state; */ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) { + struct entropy_store *r; struct { long jiffies; unsigned cycles; @@ -674,15 +773,12 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) long delta, delta2, delta3; preempt_disable(); - /* if over the trickle threshold, use only 1 in 4096 samples */ - if (input_pool.entropy_count > trickle_thresh && - ((__this_cpu_inc_return(trickle_count) - 1) & 0xfff)) - goto out; sample.jiffies = jiffies; sample.cycles = random_get_entropy(); sample.num = num; - mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL); + r = nonblocking_pool.initialized ? &input_pool : &nonblocking_pool; + mix_pool_bytes(r, &sample, sizeof(sample), NULL); /* * Calculate number of bits of randomness we probably added. @@ -716,10 +812,8 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) * Round down by 1 bit on general principles, * and limit entropy entimate to 12 bits. */ - credit_entropy_bits(&input_pool, - min_t(int, fls(delta>>1), 11)); + credit_entropy_bits(r, min_t(int, fls(delta>>1), 11)); } -out: preempt_enable(); } @@ -732,10 +826,10 @@ void add_input_randomness(unsigned int type, unsigned int code, if (value == last_value) return; - DEBUG_ENT("input event\n"); last_value = value; add_timer_randomness(&input_timer_state, (type << 4) ^ code ^ (code >> 4) ^ value); + trace_add_input_randomness(ENTROPY_BITS(&input_pool)); } EXPORT_SYMBOL_GPL(add_input_randomness); @@ -747,20 +841,21 @@ void add_interrupt_randomness(int irq, int irq_flags) struct fast_pool *fast_pool = &__get_cpu_var(irq_randomness); struct pt_regs *regs = get_irq_regs(); unsigned long now = jiffies; - __u32 input[4], cycles = random_get_entropy(); - - input[0] = cycles ^ jiffies; - input[1] = irq; - if (regs) { - __u64 ip = instruction_pointer(regs); - input[2] = ip; - input[3] = ip >> 32; - } + cycles_t cycles = random_get_entropy(); + __u32 input[4], c_high, j_high; + __u64 ip; - fast_mix(fast_pool, input, sizeof(input)); + c_high = (sizeof(cycles) > 4) ? cycles >> 32 : 0; + j_high = (sizeof(now) > 4) ? now >> 32 : 0; + input[0] = cycles ^ j_high ^ irq; + input[1] = now ^ c_high; + ip = regs ? instruction_pointer(regs) : _RET_IP_; + input[2] = ip; + input[3] = ip >> 32; - if ((fast_pool->count & 1023) && - !time_after(now, fast_pool->last + HZ)) + fast_mix(fast_pool, input); + + if ((fast_pool->count & 63) && !time_after(now, fast_pool->last + HZ)) return; fast_pool->last = now; @@ -789,10 +884,8 @@ void add_disk_randomness(struct gendisk *disk) if (!disk || !disk->random) return; /* first major is 1, so we get >= 0x200 here */ - DEBUG_ENT("disk event %d:%d\n", - MAJOR(disk_devt(disk)), MINOR(disk_devt(disk))); - add_timer_randomness(disk->random, 0x100 + disk_devt(disk)); + trace_add_disk_randomness(disk_devt(disk), ENTROPY_BITS(&input_pool)); } #endif @@ -810,30 +903,58 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf, * from the primary pool to the secondary extraction pool. We make * sure we pull enough for a 'catastrophic reseed'. */ +static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes); static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes) { - __u32 tmp[OUTPUT_POOL_WORDS]; + if (r->limit == 0 && random_min_urandom_seed) { + unsigned long now = jiffies; - if (r->pull && r->entropy_count < nbytes * 8 && - r->entropy_count < r->poolinfo->POOLBITS) { - /* If we're limited, always leave two wakeup worth's BITS */ - int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4; - int bytes = nbytes; - - /* pull at least as many as BYTES as wakeup BITS */ - bytes = max_t(int, bytes, random_read_wakeup_thresh / 8); - /* but never more than the buffer size */ - bytes = min_t(int, bytes, sizeof(tmp)); - - DEBUG_ENT("going to reseed %s with %d bits " - "(%zu of %d requested)\n", - r->name, bytes * 8, nbytes * 8, r->entropy_count); - - bytes = extract_entropy(r->pull, tmp, bytes, - random_read_wakeup_thresh / 8, rsvd); - mix_pool_bytes(r, tmp, bytes, NULL); - credit_entropy_bits(r, bytes*8); + if (time_before(now, + r->last_pulled + random_min_urandom_seed * HZ)) + return; + r->last_pulled = now; } + if (r->pull && + r->entropy_count < (nbytes << (ENTROPY_SHIFT + 3)) && + r->entropy_count < r->poolinfo->poolfracbits) + _xfer_secondary_pool(r, nbytes); +} + +static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes) +{ + __u32 tmp[OUTPUT_POOL_WORDS]; + + /* For /dev/random's pool, always leave two wakeup worth's BITS */ + int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4; + int bytes = nbytes; + + /* pull at least as many as BYTES as wakeup BITS */ + bytes = max_t(int, bytes, random_read_wakeup_thresh / 8); + /* but never more than the buffer size */ + bytes = min_t(int, bytes, sizeof(tmp)); + + trace_xfer_secondary_pool(r->name, bytes * 8, nbytes * 8, + ENTROPY_BITS(r), ENTROPY_BITS(r->pull)); + bytes = extract_entropy(r->pull, tmp, bytes, + random_read_wakeup_thresh / 8, rsvd); + mix_pool_bytes(r, tmp, bytes, NULL); + credit_entropy_bits(r, bytes*8); +} + +/* + * Used as a workqueue function so that when the input pool is getting + * full, we can "spill over" some entropy to the output pools. That + * way the output pools can store some of the excess entropy instead + * of letting it go to waste. + */ +static void push_to_pool(struct work_struct *work) +{ + struct entropy_store *r = container_of(work, struct entropy_store, + push_work); + BUG_ON(!r); + _xfer_secondary_pool(r, random_read_wakeup_thresh/8); + trace_push_to_pool(r->name, r->entropy_count >> ENTROPY_SHIFT, + r->pull->entropy_count >> ENTROPY_SHIFT); } /* @@ -853,50 +974,48 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min, { unsigned long flags; int wakeup_write = 0; + int have_bytes; + int entropy_count, orig; + size_t ibytes; /* Hold lock while accounting */ spin_lock_irqsave(&r->lock, flags); - BUG_ON(r->entropy_count > r->poolinfo->POOLBITS); - DEBUG_ENT("trying to extract %zu bits from %s\n", - nbytes * 8, r->name); + BUG_ON(r->entropy_count > r->poolinfo->poolfracbits); /* Can we pull enough? */ - if (r->entropy_count / 8 < min + reserved) { - nbytes = 0; - } else { - int entropy_count, orig; retry: - entropy_count = orig = ACCESS_ONCE(r->entropy_count); + entropy_count = orig = ACCESS_ONCE(r->entropy_count); + have_bytes = entropy_count >> (ENTROPY_SHIFT + 3); + ibytes = nbytes; + if (have_bytes < min + reserved) { + ibytes = 0; + } else { /* If limited, never pull more than available */ - if (r->limit && nbytes + reserved >= entropy_count / 8) - nbytes = entropy_count/8 - reserved; - - if (entropy_count / 8 >= nbytes + reserved) { - entropy_count -= nbytes*8; - if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) - goto retry; - } else { - entropy_count = reserved; - if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) - goto retry; - } + if (r->limit && ibytes + reserved >= have_bytes) + ibytes = have_bytes - reserved; - if (entropy_count < random_write_wakeup_thresh) - wakeup_write = 1; - } + if (have_bytes >= ibytes + reserved) + entropy_count -= ibytes << (ENTROPY_SHIFT + 3); + else + entropy_count = reserved << (ENTROPY_SHIFT + 3); - DEBUG_ENT("debiting %zu entropy credits from %s%s\n", - nbytes * 8, r->name, r->limit ? "" : " (unlimited)"); + if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig) + goto retry; + if ((r->entropy_count >> ENTROPY_SHIFT) + < random_write_wakeup_thresh) + wakeup_write = 1; + } spin_unlock_irqrestore(&r->lock, flags); + trace_debit_entropy(r->name, 8 * ibytes); if (wakeup_write) { wake_up_interruptible(&random_write_wait); kill_fasync(&fasync, SIGIO, POLL_OUT); } - return nbytes; + return ibytes; } static void extract_buf(struct entropy_store *r, __u8 *out) @@ -904,7 +1023,7 @@ static void extract_buf(struct entropy_store *r, __u8 *out) int i; union { __u32 w[5]; - unsigned long l[LONGS(EXTRACT_SIZE)]; + unsigned long l[LONGS(20)]; } hash; __u32 workspace[SHA_WORKSPACE_WORDS]; __u8 extract[64]; @@ -917,6 +1036,17 @@ static void extract_buf(struct entropy_store *r, __u8 *out) sha_transform(hash.w, (__u8 *)(r->pool + i), workspace); /* + * If we have a architectural hardware random number + * generator, mix that in, too. + */ + for (i = 0; i < LONGS(20); i++) { + unsigned long v; + if (!arch_get_random_long(&v)) + break; + hash.l[i] ^= v; + } + + /* * We mix the hash back into the pool to prevent backtracking * attacks (where the attacker knows the state of the pool * plus the current outputs, and attempts to find previous @@ -945,17 +1075,6 @@ static void extract_buf(struct entropy_store *r, __u8 *out) hash.w[1] ^= hash.w[4]; hash.w[2] ^= rol32(hash.w[2], 16); - /* - * If we have a architectural hardware random number - * generator, mix that in, too. - */ - for (i = 0; i < LONGS(EXTRACT_SIZE); i++) { - unsigned long v; - if (!arch_get_random_long(&v)) - break; - hash.l[i] ^= v; - } - memcpy(out, &hash, EXTRACT_SIZE); memset(&hash, 0, sizeof(hash)); } @@ -971,10 +1090,10 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf, if (fips_enabled) { spin_lock_irqsave(&r->lock, flags); if (!r->last_data_init) { - r->last_data_init = true; + r->last_data_init = 1; spin_unlock_irqrestore(&r->lock, flags); trace_extract_entropy(r->name, EXTRACT_SIZE, - r->entropy_count, _RET_IP_); + ENTROPY_BITS(r), _RET_IP_); xfer_secondary_pool(r, EXTRACT_SIZE); extract_buf(r, tmp); spin_lock_irqsave(&r->lock, flags); @@ -983,7 +1102,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf, spin_unlock_irqrestore(&r->lock, flags); } - trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_); + trace_extract_entropy(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_); xfer_secondary_pool(r, nbytes); nbytes = account(r, nbytes, min, reserved); @@ -1016,7 +1135,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, ssize_t ret = 0, i; __u8 tmp[EXTRACT_SIZE]; - trace_extract_entropy_user(r->name, nbytes, r->entropy_count, _RET_IP_); + trace_extract_entropy_user(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_); xfer_secondary_pool(r, nbytes); nbytes = account(r, nbytes, 0, 0); @@ -1056,6 +1175,14 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf, */ void get_random_bytes(void *buf, int nbytes) { +#if DEBUG_RANDOM_BOOT > 0 + if (unlikely(nonblocking_pool.initialized == 0)) + printk(KERN_NOTICE "random: %pF get_random_bytes called " + "with %d bits of entropy available\n", + (void *) _RET_IP_, + nonblocking_pool.entropy_total); +#endif + trace_get_random_bytes(nbytes, _RET_IP_); extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0); } EXPORT_SYMBOL(get_random_bytes); @@ -1074,7 +1201,7 @@ void get_random_bytes_arch(void *buf, int nbytes) { char *p = buf; - trace_get_random_bytes(nbytes, _RET_IP_); + trace_get_random_bytes_arch(nbytes, _RET_IP_); while (nbytes) { unsigned long v; int chunk = min(nbytes, (int)sizeof(unsigned long)); @@ -1108,13 +1235,11 @@ static void init_std_data(struct entropy_store *r) ktime_t now = ktime_get_real(); unsigned long rv; - r->entropy_count = 0; - r->entropy_total = 0; - r->last_data_init = false; + r->last_pulled = jiffies; mix_pool_bytes(r, &now, sizeof(now), NULL); - for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof(rv)) { + for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) { if (!arch_get_random_long(&rv)) - break; + rv = random_get_entropy(); mix_pool_bytes(r, &rv, sizeof(rv), NULL); } mix_pool_bytes(r, utsname(), sizeof(*(utsname())), NULL); @@ -1137,7 +1262,7 @@ static int rand_initialize(void) init_std_data(&nonblocking_pool); return 0; } -module_init(rand_initialize); +early_initcall(rand_initialize); #ifdef CONFIG_BLOCK void rand_initialize_disk(struct gendisk *disk) @@ -1149,8 +1274,10 @@ void rand_initialize_disk(struct gendisk *disk) * source. */ state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL); - if (state) + if (state) { + state->last_time = INITIAL_JIFFIES; disk->random = state; + } } #endif @@ -1167,8 +1294,6 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) if (n > SEC_XFER_SIZE) n = SEC_XFER_SIZE; - DEBUG_ENT("reading %zu bits\n", n*8); - n = extract_entropy_user(&blocking_pool, buf, n); if (n < 0) { @@ -1176,8 +1301,9 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) break; } - DEBUG_ENT("read got %zd bits (%zd still needed)\n", - n*8, (nbytes-n)*8); + trace_random_read(n*8, (nbytes-n)*8, + ENTROPY_BITS(&blocking_pool), + ENTROPY_BITS(&input_pool)); if (n == 0) { if (file->f_flags & O_NONBLOCK) { @@ -1185,13 +1311,9 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) break; } - DEBUG_ENT("sleeping?\n"); - wait_event_interruptible(random_read_wait, - input_pool.entropy_count >= - random_read_wakeup_thresh); - - DEBUG_ENT("awake\n"); + ENTROPY_BITS(&input_pool) >= + random_read_wakeup_thresh); if (signal_pending(current)) { retval = -ERESTARTSYS; @@ -1214,7 +1336,18 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) static ssize_t urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - return extract_entropy_user(&nonblocking_pool, buf, nbytes); + int ret; + + if (unlikely(nonblocking_pool.initialized == 0)) + printk_once(KERN_NOTICE "random: %s urandom read " + "with %d bits of entropy available\n", + current->comm, nonblocking_pool.entropy_total); + + ret = extract_entropy_user(&nonblocking_pool, buf, nbytes); + + trace_urandom_read(8 * nbytes, ENTROPY_BITS(&nonblocking_pool), + ENTROPY_BITS(&input_pool)); + return ret; } static unsigned int @@ -1225,9 +1358,9 @@ random_poll(struct file *file, poll_table * wait) poll_wait(file, &random_read_wait, wait); poll_wait(file, &random_write_wait, wait); mask = 0; - if (input_pool.entropy_count >= random_read_wakeup_thresh) + if (ENTROPY_BITS(&input_pool) >= random_read_wakeup_thresh) mask |= POLLIN | POLLRDNORM; - if (input_pool.entropy_count < random_write_wakeup_thresh) + if (ENTROPY_BITS(&input_pool) < random_write_wakeup_thresh) mask |= POLLOUT | POLLWRNORM; return mask; } @@ -1278,7 +1411,8 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg) switch (cmd) { case RNDGETENTCNT: /* inherently racy, no point locking */ - if (put_user(input_pool.entropy_count, p)) + ent_count = ENTROPY_BITS(&input_pool); + if (put_user(ent_count, p)) return -EFAULT; return 0; case RNDADDTOENTCNT: @@ -1286,7 +1420,7 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg) return -EPERM; if (get_user(ent_count, p)) return -EFAULT; - credit_entropy_bits(&input_pool, ent_count); + credit_entropy_bits_safe(&input_pool, ent_count); return 0; case RNDADDENTROPY: if (!capable(CAP_SYS_ADMIN)) @@ -1301,14 +1435,19 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg) size); if (retval < 0) return retval; - credit_entropy_bits(&input_pool, ent_count); + credit_entropy_bits_safe(&input_pool, ent_count); return 0; case RNDZAPENTCNT: case RNDCLEARPOOL: - /* Clear the entropy pool counters. */ + /* + * Clear the entropy pool counters. We no longer clear + * the entropy pool, as that's silly. + */ if (!capable(CAP_SYS_ADMIN)) return -EPERM; - rand_initialize(); + input_pool.entropy_count = 0; + nonblocking_pool.entropy_count = 0; + blocking_pool.entropy_count = 0; return 0; default: return -EINVAL; @@ -1408,6 +1547,23 @@ static int proc_do_uuid(struct ctl_table *table, int write, return proc_dostring(&fake_table, write, buffer, lenp, ppos); } +/* + * Return entropy available scaled to integral bits + */ +static int proc_do_entropy(ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + ctl_table fake_table; + int entropy_count; + + entropy_count = *(int *)table->data >> ENTROPY_SHIFT; + + fake_table.data = &entropy_count; + fake_table.maxlen = sizeof(entropy_count); + + return proc_dointvec(&fake_table, write, buffer, lenp, ppos); +} + static int sysctl_poolsize = INPUT_POOL_WORDS * 32; extern struct ctl_table random_table[]; struct ctl_table random_table[] = { @@ -1422,7 +1578,7 @@ struct ctl_table random_table[] = { .procname = "entropy_avail", .maxlen = sizeof(int), .mode = 0444, - .proc_handler = proc_dointvec, + .proc_handler = proc_do_entropy, .data = &input_pool.entropy_count, }, { @@ -1444,6 +1600,13 @@ struct ctl_table random_table[] = { .extra2 = &max_write_thresh, }, { + .procname = "urandom_min_reseed_secs", + .data = &random_min_urandom_seed, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { .procname = "boot_id", .data = &sysctl_bootid, .maxlen = 16, diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index 94c0c74434ea..1a65838888cd 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -33,6 +33,15 @@ config TCG_TIS from within Linux. To compile this driver as a module, choose M here; the module will be called tpm_tis. +config TCG_TIS_I2C_ATMEL + tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)" + depends on I2C + ---help--- + If you have an Atmel I2C TPM security chip say Yes and it will be + accessible from within Linux. + To compile this driver as a module, choose M here; the module will + be called tpm_tis_i2c_atmel. + config TCG_TIS_I2C_INFINEON tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)" depends on I2C @@ -42,7 +51,17 @@ config TCG_TIS_I2C_INFINEON Specification 0.20 say Yes and it will be accessible from within Linux. To compile this driver as a module, choose M here; the module - will be called tpm_tis_i2c_infineon. + will be called tpm_i2c_infineon. + +config TCG_TIS_I2C_NUVOTON + tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)" + depends on I2C + ---help--- + If you have a TPM security chip with an I2C interface from + Nuvoton Technology Corp. say Yes and it will be accessible + from within Linux. + To compile this driver as a module, choose M here; the module + will be called tpm_i2c_nuvoton. config TCG_NSC tristate "National Semiconductor TPM Interface" @@ -82,14 +101,14 @@ config TCG_IBMVTPM as a module, choose M here; the module will be called tpm_ibmvtpm. config TCG_ST33_I2C - tristate "STMicroelectronics ST33 I2C TPM" - depends on I2C - depends on GPIOLIB - ---help--- - If you have a TPM security chip from STMicroelectronics working with - an I2C bus say Yes and it will be accessible from within Linux. - To compile this driver as a module, choose M here; the module will be - called tpm_stm_st33_i2c. + tristate "STMicroelectronics ST33 I2C TPM" + depends on I2C + depends on GPIOLIB + ---help--- + If you have a TPM security chip from STMicroelectronics working with + an I2C bus say Yes and it will be accessible from within Linux. + To compile this driver as a module, choose M here; the module will be + called tpm_stm_st33_i2c. config TCG_XEN tristate "XEN TPM Interface" diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile index eb41ff97d0ad..b80a4000daee 100644 --- a/drivers/char/tpm/Makefile +++ b/drivers/char/tpm/Makefile @@ -2,17 +2,20 @@ # Makefile for the kernel tpm device drivers. # obj-$(CONFIG_TCG_TPM) += tpm.o +tpm-y := tpm-interface.o +tpm-$(CONFIG_ACPI) += tpm_ppi.o + ifdef CONFIG_ACPI - obj-$(CONFIG_TCG_TPM) += tpm_bios.o - tpm_bios-objs += tpm_eventlog.o tpm_acpi.o tpm_ppi.o + tpm-y += tpm_eventlog.o tpm_acpi.o else ifdef CONFIG_TCG_IBMVTPM - obj-$(CONFIG_TCG_TPM) += tpm_bios.o - tpm_bios-objs += tpm_eventlog.o tpm_of.o + tpm-y += tpm_eventlog.o tpm_of.o endif endif obj-$(CONFIG_TCG_TIS) += tpm_tis.o +obj-$(CONFIG_TCG_TIS_I2C_ATMEL) += tpm_i2c_atmel.o obj-$(CONFIG_TCG_TIS_I2C_INFINEON) += tpm_i2c_infineon.o +obj-$(CONFIG_TCG_TIS_I2C_NUVOTON) += tpm_i2c_nuvoton.o obj-$(CONFIG_TCG_NSC) += tpm_nsc.o obj-$(CONFIG_TCG_ATMEL) += tpm_atmel.o obj-$(CONFIG_TCG_INFINEON) += tpm_infineon.o diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm-interface.c index e3c974a6c522..6ae41d337630 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm-interface.c @@ -10,13 +10,13 @@ * Maintained by: <tpmdd-devel@lists.sourceforge.net> * * Device driver for TCG/TCPA TPM (trusted platform module). - * Specifications at www.trustedcomputinggroup.org + * Specifications at www.trustedcomputinggroup.org * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2 of the * License. - * + * * Note, the TPM chip is not interrupt driven (only polling) * and can have very long timeouts (minutes!). Hence the unusual * calls to msleep. @@ -371,13 +371,14 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf, return -ENODATA; if (count > bufsiz) { dev_err(chip->dev, - "invalid count value %x %zx \n", count, bufsiz); + "invalid count value %x %zx\n", count, bufsiz); return -E2BIG; } mutex_lock(&chip->tpm_mutex); - if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) { + rc = chip->vendor.send(chip, (u8 *) buf, count); + if (rc < 0) { dev_err(chip->dev, "tpm_transmit: tpm_send: error %zd\n", rc); goto out; @@ -444,7 +445,7 @@ static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd, { int err; - len = tpm_transmit(chip,(u8 *) cmd, len); + len = tpm_transmit(chip, (u8 *) cmd, len); if (len < 0) return len; else if (len < TPM_HEADER_SIZE) @@ -658,7 +659,7 @@ static int tpm_continue_selftest(struct tpm_chip *chip) return rc; } -ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr, +ssize_t tpm_show_enabled(struct device *dev, struct device_attribute *attr, char *buf) { cap_t cap; @@ -674,7 +675,7 @@ ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr, } EXPORT_SYMBOL_GPL(tpm_show_enabled); -ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr, +ssize_t tpm_show_active(struct device *dev, struct device_attribute *attr, char *buf) { cap_t cap; @@ -690,7 +691,7 @@ ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr, } EXPORT_SYMBOL_GPL(tpm_show_active); -ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr, +ssize_t tpm_show_owned(struct device *dev, struct device_attribute *attr, char *buf) { cap_t cap; @@ -706,8 +707,8 @@ ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr, } EXPORT_SYMBOL_GPL(tpm_show_owned); -ssize_t tpm_show_temp_deactivated(struct device * dev, - struct device_attribute * attr, char *buf) +ssize_t tpm_show_temp_deactivated(struct device *dev, + struct device_attribute *attr, char *buf) { cap_t cap; ssize_t rc; @@ -769,10 +770,10 @@ static int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf) /** * tpm_pcr_read - read a pcr value - * @chip_num: tpm idx # or ANY + * @chip_num: tpm idx # or ANY * @pcr_idx: pcr idx to retrieve - * @res_buf: TPM_PCR value - * size of res_buf is 20 bytes (or NULL if you don't care) + * @res_buf: TPM_PCR value + * size of res_buf is 20 bytes (or NULL if you don't care) * * The TPM driver should be built-in, but for whatever reason it * isn't, protect against the chip disappearing, by incrementing @@ -794,9 +795,9 @@ EXPORT_SYMBOL_GPL(tpm_pcr_read); /** * tpm_pcr_extend - extend pcr value with hash - * @chip_num: tpm idx # or AN& + * @chip_num: tpm idx # or AN& * @pcr_idx: pcr idx to extend - * @hash: hash value used to extend pcr value + * @hash: hash value used to extend pcr value * * The TPM driver should be built-in, but for whatever reason it * isn't, protect against the chip disappearing, by incrementing @@ -847,8 +848,7 @@ int tpm_do_selftest(struct tpm_chip *chip) unsigned long duration; struct tpm_cmd_t cmd; - duration = tpm_calc_ordinal_duration(chip, - TPM_ORD_CONTINUE_SELFTEST); + duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST); loops = jiffies_to_msecs(duration) / delay_msec; @@ -965,12 +965,12 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr, if (err) goto out; - /* + /* ignore header 10 bytes algorithm 32 bits (1 == RSA ) encscheme 16 bits sigscheme 16 bits - parameters (RSA 12->bytes: keybit, #primes, expbit) + parameters (RSA 12->bytes: keybit, #primes, expbit) keylenbytes 32 bits 256 byte modulus ignore checksum 20 bytes @@ -1020,43 +1020,33 @@ ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr, str += sprintf(str, "Manufacturer: 0x%x\n", be32_to_cpu(cap.manufacturer_id)); - rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap, - "attempting to determine the 1.1 version"); - if (rc) - return 0; - str += sprintf(str, - "TCG version: %d.%d\nFirmware version: %d.%d\n", - cap.tpm_version.Major, cap.tpm_version.Minor, - cap.tpm_version.revMajor, cap.tpm_version.revMinor); - return str - buf; -} -EXPORT_SYMBOL_GPL(tpm_show_caps); - -ssize_t tpm_show_caps_1_2(struct device * dev, - struct device_attribute * attr, char *buf) -{ - cap_t cap; - ssize_t rc; - char *str = buf; - - rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap, - "attempting to determine the manufacturer"); - if (rc) - return 0; - str += sprintf(str, "Manufacturer: 0x%x\n", - be32_to_cpu(cap.manufacturer_id)); + /* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */ rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap, "attempting to determine the 1.2 version"); - if (rc) - return 0; - str += sprintf(str, - "TCG version: %d.%d\nFirmware version: %d.%d\n", - cap.tpm_version_1_2.Major, cap.tpm_version_1_2.Minor, - cap.tpm_version_1_2.revMajor, - cap.tpm_version_1_2.revMinor); + if (!rc) { + str += sprintf(str, + "TCG version: %d.%d\nFirmware version: %d.%d\n", + cap.tpm_version_1_2.Major, + cap.tpm_version_1_2.Minor, + cap.tpm_version_1_2.revMajor, + cap.tpm_version_1_2.revMinor); + } else { + /* Otherwise just use TPM_STRUCT_VER */ + rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap, + "attempting to determine the 1.1 version"); + if (rc) + return 0; + str += sprintf(str, + "TCG version: %d.%d\nFirmware version: %d.%d\n", + cap.tpm_version.Major, + cap.tpm_version.Minor, + cap.tpm_version.revMajor, + cap.tpm_version.revMinor); + } + return str - buf; } -EXPORT_SYMBOL_GPL(tpm_show_caps_1_2); +EXPORT_SYMBOL_GPL(tpm_show_caps); ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr, char *buf) @@ -1102,8 +1092,8 @@ ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr, } EXPORT_SYMBOL_GPL(tpm_store_cancel); -static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask, bool check_cancel, - bool *canceled) +static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask, + bool check_cancel, bool *canceled) { u8 status = chip->vendor.status(chip); @@ -1170,38 +1160,25 @@ EXPORT_SYMBOL_GPL(wait_for_tpm_stat); */ int tpm_open(struct inode *inode, struct file *file) { - int minor = iminor(inode); - struct tpm_chip *chip = NULL, *pos; - - rcu_read_lock(); - list_for_each_entry_rcu(pos, &tpm_chip_list, list) { - if (pos->vendor.miscdev.minor == minor) { - chip = pos; - get_device(chip->dev); - break; - } - } - rcu_read_unlock(); - - if (!chip) - return -ENODEV; + struct miscdevice *misc = file->private_data; + struct tpm_chip *chip = container_of(misc, struct tpm_chip, + vendor.miscdev); if (test_and_set_bit(0, &chip->is_open)) { dev_dbg(chip->dev, "Another process owns this TPM\n"); - put_device(chip->dev); return -EBUSY; } chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL); if (chip->data_buffer == NULL) { clear_bit(0, &chip->is_open); - put_device(chip->dev); return -ENOMEM; } atomic_set(&chip->data_pending, 0); file->private_data = chip; + get_device(chip->dev); return 0; } EXPORT_SYMBOL_GPL(tpm_open); @@ -1463,7 +1440,6 @@ void tpm_dev_vendor_release(struct tpm_chip *chip) chip->vendor.release(chip->dev); clear_bit(chip->dev_num, dev_mask); - kfree(chip->vendor.miscdev.name); } EXPORT_SYMBOL_GPL(tpm_dev_vendor_release); @@ -1487,7 +1463,7 @@ void tpm_dev_release(struct device *dev) EXPORT_SYMBOL_GPL(tpm_dev_release); /* - * Called from tpm_<specific>.c probe function only for devices + * Called from tpm_<specific>.c probe function only for devices * the driver has determined it should claim. Prior to calling * this function the specific probe function has called pci_enable_device * upon errant exit from this function specific probe function should call @@ -1496,17 +1472,13 @@ EXPORT_SYMBOL_GPL(tpm_dev_release); struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vendor_specific *entry) { -#define DEVNAME_SIZE 7 - - char *devname; struct tpm_chip *chip; /* Driver specific per-device data */ chip = kzalloc(sizeof(*chip), GFP_KERNEL); - devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL); - if (chip == NULL || devname == NULL) - goto out_free; + if (chip == NULL) + return NULL; mutex_init(&chip->buffer_mutex); mutex_init(&chip->tpm_mutex); @@ -1531,8 +1503,9 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, set_bit(chip->dev_num, dev_mask); - scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num); - chip->vendor.miscdev.name = devname; + scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm", + chip->dev_num); + chip->vendor.miscdev.name = chip->devname; chip->vendor.miscdev.parent = dev; chip->dev = get_device(dev); @@ -1558,7 +1531,7 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, goto put_device; } - chip->bios_dir = tpm_bios_log_setup(devname); + chip->bios_dir = tpm_bios_log_setup(chip->devname); /* Make chip available */ spin_lock(&driver_lock); @@ -1571,7 +1544,6 @@ put_device: put_device(chip->dev); out_free: kfree(chip); - kfree(devname); return NULL; } EXPORT_SYMBOL_GPL(tpm_register_hardware); diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index a7bfc176ed43..f32847872193 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -59,8 +59,6 @@ extern ssize_t tpm_show_pcrs(struct device *, struct device_attribute *attr, char *); extern ssize_t tpm_show_caps(struct device *, struct device_attribute *attr, char *); -extern ssize_t tpm_show_caps_1_2(struct device *, struct device_attribute *attr, - char *); extern ssize_t tpm_store_cancel(struct device *, struct device_attribute *attr, const char *, size_t); extern ssize_t tpm_show_enabled(struct device *, struct device_attribute *attr, @@ -122,6 +120,7 @@ struct tpm_chip { struct device *dev; /* Device stuff */ int dev_num; /* /dev/tpm# */ + char devname[7]; unsigned long is_open; /* only one allowed */ int time_expired; diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c index 99d6820c611d..c9a528d25d22 100644 --- a/drivers/char/tpm/tpm_atmel.c +++ b/drivers/char/tpm/tpm_atmel.c @@ -202,7 +202,7 @@ static int __init init_atmel(void) have_region = (atmel_request_region - (tpm_atmel.base, region_size, "tpm_atmel0") == NULL) ? 0 : 1; + (base, region_size, "tpm_atmel0") == NULL) ? 0 : 1; pdev = platform_device_register_simple("tpm_atmel", -1, NULL, 0); if (IS_ERR(pdev)) { diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c index 84ddc557b8f8..59f7cb28260b 100644 --- a/drivers/char/tpm/tpm_eventlog.c +++ b/drivers/char/tpm/tpm_eventlog.c @@ -406,7 +406,6 @@ out_tpm: out: return NULL; } -EXPORT_SYMBOL_GPL(tpm_bios_log_setup); void tpm_bios_log_teardown(struct dentry **lst) { @@ -415,5 +414,3 @@ void tpm_bios_log_teardown(struct dentry **lst) for (i = 0; i < 3; i++) securityfs_remove(lst[i]); } -EXPORT_SYMBOL_GPL(tpm_bios_log_teardown); -MODULE_LICENSE("GPL"); diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c new file mode 100644 index 000000000000..c3cd7fe481a1 --- /dev/null +++ b/drivers/char/tpm/tpm_i2c_atmel.c @@ -0,0 +1,284 @@ +/* + * ATMEL I2C TPM AT97SC3204T + * + * Copyright (C) 2012 V Lab Technologies + * Teddy Reed <teddy@prosauce.org> + * Copyright (C) 2013, Obsidian Research Corp. + * Jason Gunthorpe <jgunthorpe@obsidianresearch.com> + * Device driver for ATMEL I2C TPMs. + * + * Teddy Reed determined the basic I2C command flow, unlike other I2C TPM + * devices the raw TCG formatted TPM command data is written via I2C and then + * raw TCG formatted TPM command data is returned via I2C. + * + * TGC status/locality/etc functions seen in the LPC implementation do not + * seem to be present. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see http://www.gnu.org/licenses/>. + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include "tpm.h" + +#define I2C_DRIVER_NAME "tpm_i2c_atmel" + +#define TPM_I2C_SHORT_TIMEOUT 750 /* ms */ +#define TPM_I2C_LONG_TIMEOUT 2000 /* 2 sec */ + +#define ATMEL_STS_OK 1 + +struct priv_data { + size_t len; + /* This is the amount we read on the first try. 25 was chosen to fit a + * fair number of read responses in the buffer so a 2nd retry can be + * avoided in small message cases. */ + u8 buffer[sizeof(struct tpm_output_header) + 25]; +}; + +static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len) +{ + struct priv_data *priv = chip->vendor.priv; + struct i2c_client *client = to_i2c_client(chip->dev); + s32 status; + + priv->len = 0; + + if (len <= 2) + return -EIO; + + status = i2c_master_send(client, buf, len); + + dev_dbg(chip->dev, + "%s(buf=%*ph len=%0zx) -> sts=%d\n", __func__, + (int)min_t(size_t, 64, len), buf, len, status); + return status; +} + +static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count) +{ + struct priv_data *priv = chip->vendor.priv; + struct i2c_client *client = to_i2c_client(chip->dev); + struct tpm_output_header *hdr = + (struct tpm_output_header *)priv->buffer; + u32 expected_len; + int rc; + + if (priv->len == 0) + return -EIO; + + /* Get the message size from the message header, if we didn't get the + * whole message in read_status then we need to re-read the + * message. */ + expected_len = be32_to_cpu(hdr->length); + if (expected_len > count) + return -ENOMEM; + + if (priv->len >= expected_len) { + dev_dbg(chip->dev, + "%s early(buf=%*ph count=%0zx) -> ret=%d\n", __func__, + (int)min_t(size_t, 64, expected_len), buf, count, + expected_len); + memcpy(buf, priv->buffer, expected_len); + return expected_len; + } + + rc = i2c_master_recv(client, buf, expected_len); + dev_dbg(chip->dev, + "%s reread(buf=%*ph count=%0zx) -> ret=%d\n", __func__, + (int)min_t(size_t, 64, expected_len), buf, count, + expected_len); + return rc; +} + +static void i2c_atmel_cancel(struct tpm_chip *chip) +{ + dev_err(chip->dev, "TPM operation cancellation was requested, but is not supported"); +} + +static u8 i2c_atmel_read_status(struct tpm_chip *chip) +{ + struct priv_data *priv = chip->vendor.priv; + struct i2c_client *client = to_i2c_client(chip->dev); + int rc; + + /* The TPM fails the I2C read until it is ready, so we do the entire + * transfer here and buffer it locally. This way the common code can + * properly handle the timeouts. */ + priv->len = 0; + memset(priv->buffer, 0, sizeof(priv->buffer)); + + + /* Once the TPM has completed the command the command remains readable + * until another command is issued. */ + rc = i2c_master_recv(client, priv->buffer, sizeof(priv->buffer)); + dev_dbg(chip->dev, + "%s: sts=%d", __func__, rc); + if (rc <= 0) + return 0; + + priv->len = rc; + + return ATMEL_STS_OK; +} + +static const struct file_operations i2c_atmel_ops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .open = tpm_open, + .read = tpm_read, + .write = tpm_write, + .release = tpm_release, +}; + +static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL); +static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL); +static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL); +static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); +static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); +static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); +static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); +static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL); +static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); + +static struct attribute *i2c_atmel_attrs[] = { + &dev_attr_pubek.attr, + &dev_attr_pcrs.attr, + &dev_attr_enabled.attr, + &dev_attr_active.attr, + &dev_attr_owned.attr, + &dev_attr_temp_deactivated.attr, + &dev_attr_caps.attr, + &dev_attr_cancel.attr, + &dev_attr_durations.attr, + &dev_attr_timeouts.attr, + NULL, +}; + +static struct attribute_group i2c_atmel_attr_grp = { + .attrs = i2c_atmel_attrs +}; + +static bool i2c_atmel_req_canceled(struct tpm_chip *chip, u8 status) +{ + return 0; +} + +static const struct tpm_vendor_specific i2c_atmel = { + .status = i2c_atmel_read_status, + .recv = i2c_atmel_recv, + .send = i2c_atmel_send, + .cancel = i2c_atmel_cancel, + .req_complete_mask = ATMEL_STS_OK, + .req_complete_val = ATMEL_STS_OK, + .req_canceled = i2c_atmel_req_canceled, + .attr_group = &i2c_atmel_attr_grp, + .miscdev.fops = &i2c_atmel_ops, +}; + +static int i2c_atmel_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int rc; + struct tpm_chip *chip; + struct device *dev = &client->dev; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -ENODEV; + + chip = tpm_register_hardware(dev, &i2c_atmel); + if (!chip) { + dev_err(dev, "%s() error in tpm_register_hardware\n", __func__); + return -ENODEV; + } + + chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data), + GFP_KERNEL); + + /* Default timeouts */ + chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + chip->vendor.timeout_b = msecs_to_jiffies(TPM_I2C_LONG_TIMEOUT); + chip->vendor.timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + chip->vendor.timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + chip->vendor.irq = 0; + + /* There is no known way to probe for this device, and all version + * information seems to be read via TPM commands. Thus we rely on the + * TPM startup process in the common code to detect the device. */ + if (tpm_get_timeouts(chip)) { + rc = -ENODEV; + goto out_err; + } + + if (tpm_do_selftest(chip)) { + rc = -ENODEV; + goto out_err; + } + + return 0; + +out_err: + tpm_dev_vendor_release(chip); + tpm_remove_hardware(chip->dev); + return rc; +} + +static int i2c_atmel_remove(struct i2c_client *client) +{ + struct device *dev = &(client->dev); + struct tpm_chip *chip = dev_get_drvdata(dev); + + if (chip) + tpm_dev_vendor_release(chip); + tpm_remove_hardware(dev); + kfree(chip); + return 0; +} + +static const struct i2c_device_id i2c_atmel_id[] = { + {I2C_DRIVER_NAME, 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, i2c_atmel_id); + +#ifdef CONFIG_OF +static const struct of_device_id i2c_atmel_of_match[] = { + {.compatible = "atmel,at97sc3204t"}, + {}, +}; +MODULE_DEVICE_TABLE(of, i2c_atmel_of_match); +#endif + +static SIMPLE_DEV_PM_OPS(i2c_atmel_pm_ops, tpm_pm_suspend, tpm_pm_resume); + +static struct i2c_driver i2c_atmel_driver = { + .id_table = i2c_atmel_id, + .probe = i2c_atmel_probe, + .remove = i2c_atmel_remove, + .driver = { + .name = I2C_DRIVER_NAME, + .owner = THIS_MODULE, + .pm = &i2c_atmel_pm_ops, + .of_match_table = of_match_ptr(i2c_atmel_of_match), + }, +}; + +module_i2c_driver(i2c_atmel_driver); + +MODULE_AUTHOR("Jason Gunthorpe <jgunthorpe@obsidianresearch.com>"); +MODULE_DESCRIPTION("Atmel TPM I2C Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c index b8735de8ce95..fefd2aa5c81e 100644 --- a/drivers/char/tpm/tpm_i2c_infineon.c +++ b/drivers/char/tpm/tpm_i2c_infineon.c @@ -581,7 +581,7 @@ static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL); static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); -static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL); static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); @@ -685,7 +685,6 @@ out_vendor: chip->dev->release = NULL; chip->release = NULL; tpm_dev.client = NULL; - dev_set_drvdata(chip->dev, chip); out_err: return rc; } @@ -766,7 +765,6 @@ static int tpm_tis_i2c_remove(struct i2c_client *client) chip->dev->release = NULL; chip->release = NULL; tpm_dev.client = NULL; - dev_set_drvdata(chip->dev, chip); return 0; } diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c new file mode 100644 index 000000000000..6276fea01ff0 --- /dev/null +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -0,0 +1,710 @@ +/****************************************************************************** + * Nuvoton TPM I2C Device Driver Interface for WPCT301/NPCT501, + * based on the TCG TPM Interface Spec version 1.2. + * Specifications at www.trustedcomputinggroup.org + * + * Copyright (C) 2011, Nuvoton Technology Corporation. + * Dan Morav <dan.morav@nuvoton.com> + * Copyright (C) 2013, Obsidian Research Corp. + * Jason Gunthorpe <jgunthorpe@obsidianresearch.com> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see http://www.gnu.org/licenses/>. + * + * Nuvoton contact information: APC.Support@nuvoton.com + *****************************************************************************/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/wait.h> +#include <linux/i2c.h> +#include "tpm.h" + +/* I2C interface offsets */ +#define TPM_STS 0x00 +#define TPM_BURST_COUNT 0x01 +#define TPM_DATA_FIFO_W 0x20 +#define TPM_DATA_FIFO_R 0x40 +#define TPM_VID_DID_RID 0x60 +/* TPM command header size */ +#define TPM_HEADER_SIZE 10 +#define TPM_RETRY 5 +/* + * I2C bus device maximum buffer size w/o counting I2C address or command + * i.e. max size required for I2C write is 34 = addr, command, 32 bytes data + */ +#define TPM_I2C_MAX_BUF_SIZE 32 +#define TPM_I2C_RETRY_COUNT 32 +#define TPM_I2C_BUS_DELAY 1 /* msec */ +#define TPM_I2C_RETRY_DELAY_SHORT 2 /* msec */ +#define TPM_I2C_RETRY_DELAY_LONG 10 /* msec */ + +#define I2C_DRIVER_NAME "tpm_i2c_nuvoton" + +struct priv_data { + unsigned int intrs; +}; + +static s32 i2c_nuvoton_read_buf(struct i2c_client *client, u8 offset, u8 size, + u8 *data) +{ + s32 status; + + status = i2c_smbus_read_i2c_block_data(client, offset, size, data); + dev_dbg(&client->dev, + "%s(offset=%u size=%u data=%*ph) -> sts=%d\n", __func__, + offset, size, (int)size, data, status); + return status; +} + +static s32 i2c_nuvoton_write_buf(struct i2c_client *client, u8 offset, u8 size, + u8 *data) +{ + s32 status; + + status = i2c_smbus_write_i2c_block_data(client, offset, size, data); + dev_dbg(&client->dev, + "%s(offset=%u size=%u data=%*ph) -> sts=%d\n", __func__, + offset, size, (int)size, data, status); + return status; +} + +#define TPM_STS_VALID 0x80 +#define TPM_STS_COMMAND_READY 0x40 +#define TPM_STS_GO 0x20 +#define TPM_STS_DATA_AVAIL 0x10 +#define TPM_STS_EXPECT 0x08 +#define TPM_STS_RESPONSE_RETRY 0x02 +#define TPM_STS_ERR_VAL 0x07 /* bit2...bit0 reads always 0 */ + +#define TPM_I2C_SHORT_TIMEOUT 750 /* ms */ +#define TPM_I2C_LONG_TIMEOUT 2000 /* 2 sec */ + +/* read TPM_STS register */ +static u8 i2c_nuvoton_read_status(struct tpm_chip *chip) +{ + struct i2c_client *client = to_i2c_client(chip->dev); + s32 status; + u8 data; + + status = i2c_nuvoton_read_buf(client, TPM_STS, 1, &data); + if (status <= 0) { + dev_err(chip->dev, "%s() error return %d\n", __func__, + status); + data = TPM_STS_ERR_VAL; + } + + return data; +} + +/* write byte to TPM_STS register */ +static s32 i2c_nuvoton_write_status(struct i2c_client *client, u8 data) +{ + s32 status; + int i; + + /* this causes the current command to be aborted */ + for (i = 0, status = -1; i < TPM_I2C_RETRY_COUNT && status < 0; i++) { + status = i2c_nuvoton_write_buf(client, TPM_STS, 1, &data); + msleep(TPM_I2C_BUS_DELAY); + } + return status; +} + +/* write commandReady to TPM_STS register */ +static void i2c_nuvoton_ready(struct tpm_chip *chip) +{ + struct i2c_client *client = to_i2c_client(chip->dev); + s32 status; + + /* this causes the current command to be aborted */ + status = i2c_nuvoton_write_status(client, TPM_STS_COMMAND_READY); + if (status < 0) + dev_err(chip->dev, + "%s() fail to write TPM_STS.commandReady\n", __func__); +} + +/* read burstCount field from TPM_STS register + * return -1 on fail to read */ +static int i2c_nuvoton_get_burstcount(struct i2c_client *client, + struct tpm_chip *chip) +{ + unsigned long stop = jiffies + chip->vendor.timeout_d; + s32 status; + int burst_count = -1; + u8 data; + + /* wait for burstcount to be non-zero */ + do { + /* in I2C burstCount is 1 byte */ + status = i2c_nuvoton_read_buf(client, TPM_BURST_COUNT, 1, + &data); + if (status > 0 && data > 0) { + burst_count = min_t(u8, TPM_I2C_MAX_BUF_SIZE, data); + break; + } + msleep(TPM_I2C_BUS_DELAY); + } while (time_before(jiffies, stop)); + + return burst_count; +} + +/* + * WPCT301/NPCT501 SINT# supports only dataAvail + * any call to this function which is not waiting for dataAvail will + * set queue to NULL to avoid waiting for interrupt + */ +static bool i2c_nuvoton_check_status(struct tpm_chip *chip, u8 mask, u8 value) +{ + u8 status = i2c_nuvoton_read_status(chip); + return (status != TPM_STS_ERR_VAL) && ((status & mask) == value); +} + +static int i2c_nuvoton_wait_for_stat(struct tpm_chip *chip, u8 mask, u8 value, + u32 timeout, wait_queue_head_t *queue) +{ + if (chip->vendor.irq && queue) { + s32 rc; + DEFINE_WAIT(wait); + struct priv_data *priv = chip->vendor.priv; + unsigned int cur_intrs = priv->intrs; + + enable_irq(chip->vendor.irq); + rc = wait_event_interruptible_timeout(*queue, + cur_intrs != priv->intrs, + timeout); + if (rc > 0) + return 0; + /* At this point we know that the SINT pin is asserted, so we + * do not need to do i2c_nuvoton_check_status */ + } else { + unsigned long ten_msec, stop; + bool status_valid; + + /* check current status */ + status_valid = i2c_nuvoton_check_status(chip, mask, value); + if (status_valid) + return 0; + + /* use polling to wait for the event */ + ten_msec = jiffies + msecs_to_jiffies(TPM_I2C_RETRY_DELAY_LONG); + stop = jiffies + timeout; + do { + if (time_before(jiffies, ten_msec)) + msleep(TPM_I2C_RETRY_DELAY_SHORT); + else + msleep(TPM_I2C_RETRY_DELAY_LONG); + status_valid = i2c_nuvoton_check_status(chip, mask, + value); + if (status_valid) + return 0; + } while (time_before(jiffies, stop)); + } + dev_err(chip->dev, "%s(%02x, %02x) -> timeout\n", __func__, mask, + value); + return -ETIMEDOUT; +} + +/* wait for dataAvail field to be set in the TPM_STS register */ +static int i2c_nuvoton_wait_for_data_avail(struct tpm_chip *chip, u32 timeout, + wait_queue_head_t *queue) +{ + return i2c_nuvoton_wait_for_stat(chip, + TPM_STS_DATA_AVAIL | TPM_STS_VALID, + TPM_STS_DATA_AVAIL | TPM_STS_VALID, + timeout, queue); +} + +/* Read @count bytes into @buf from TPM_RD_FIFO register */ +static int i2c_nuvoton_recv_data(struct i2c_client *client, + struct tpm_chip *chip, u8 *buf, size_t count) +{ + s32 rc; + int burst_count, bytes2read, size = 0; + + while (size < count && + i2c_nuvoton_wait_for_data_avail(chip, + chip->vendor.timeout_c, + &chip->vendor.read_queue) == 0) { + burst_count = i2c_nuvoton_get_burstcount(client, chip); + if (burst_count < 0) { + dev_err(chip->dev, + "%s() fail to read burstCount=%d\n", __func__, + burst_count); + return -EIO; + } + bytes2read = min_t(size_t, burst_count, count - size); + rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_R, + bytes2read, &buf[size]); + if (rc < 0) { + dev_err(chip->dev, + "%s() fail on i2c_nuvoton_read_buf()=%d\n", + __func__, rc); + return -EIO; + } + dev_dbg(chip->dev, "%s(%d):", __func__, bytes2read); + size += bytes2read; + } + + return size; +} + +/* Read TPM command results */ +static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count) +{ + struct device *dev = chip->dev; + struct i2c_client *client = to_i2c_client(dev); + s32 rc; + int expected, status, burst_count, retries, size = 0; + + if (count < TPM_HEADER_SIZE) { + i2c_nuvoton_ready(chip); /* return to idle */ + dev_err(dev, "%s() count < header size\n", __func__); + return -EIO; + } + for (retries = 0; retries < TPM_RETRY; retries++) { + if (retries > 0) { + /* if this is not the first trial, set responseRetry */ + i2c_nuvoton_write_status(client, + TPM_STS_RESPONSE_RETRY); + } + /* + * read first available (> 10 bytes), including: + * tag, paramsize, and result + */ + status = i2c_nuvoton_wait_for_data_avail( + chip, chip->vendor.timeout_c, &chip->vendor.read_queue); + if (status != 0) { + dev_err(dev, "%s() timeout on dataAvail\n", __func__); + size = -ETIMEDOUT; + continue; + } + burst_count = i2c_nuvoton_get_burstcount(client, chip); + if (burst_count < 0) { + dev_err(dev, "%s() fail to get burstCount\n", __func__); + size = -EIO; + continue; + } + size = i2c_nuvoton_recv_data(client, chip, buf, + burst_count); + if (size < TPM_HEADER_SIZE) { + dev_err(dev, "%s() fail to read header\n", __func__); + size = -EIO; + continue; + } + /* + * convert number of expected bytes field from big endian 32 bit + * to machine native + */ + expected = be32_to_cpu(*(__be32 *) (buf + 2)); + if (expected > count) { + dev_err(dev, "%s() expected > count\n", __func__); + size = -EIO; + continue; + } + rc = i2c_nuvoton_recv_data(client, chip, &buf[size], + expected - size); + size += rc; + if (rc < 0 || size < expected) { + dev_err(dev, "%s() fail to read remainder of result\n", + __func__); + size = -EIO; + continue; + } + if (i2c_nuvoton_wait_for_stat( + chip, TPM_STS_VALID | TPM_STS_DATA_AVAIL, + TPM_STS_VALID, chip->vendor.timeout_c, + NULL)) { + dev_err(dev, "%s() error left over data\n", __func__); + size = -ETIMEDOUT; + continue; + } + break; + } + i2c_nuvoton_ready(chip); + dev_dbg(chip->dev, "%s() -> %d\n", __func__, size); + return size; +} + +/* + * Send TPM command. + * + * If interrupts are used (signaled by an irq set in the vendor structure) + * tpm.c can skip polling for the data to be available as the interrupt is + * waited for here + */ +static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len) +{ + struct device *dev = chip->dev; + struct i2c_client *client = to_i2c_client(dev); + u32 ordinal; + size_t count = 0; + int burst_count, bytes2write, retries, rc = -EIO; + + for (retries = 0; retries < TPM_RETRY; retries++) { + i2c_nuvoton_ready(chip); + if (i2c_nuvoton_wait_for_stat(chip, TPM_STS_COMMAND_READY, + TPM_STS_COMMAND_READY, + chip->vendor.timeout_b, NULL)) { + dev_err(dev, "%s() timeout on commandReady\n", + __func__); + rc = -EIO; + continue; + } + rc = 0; + while (count < len - 1) { + burst_count = i2c_nuvoton_get_burstcount(client, + chip); + if (burst_count < 0) { + dev_err(dev, "%s() fail get burstCount\n", + __func__); + rc = -EIO; + break; + } + bytes2write = min_t(size_t, burst_count, + len - 1 - count); + rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W, + bytes2write, &buf[count]); + if (rc < 0) { + dev_err(dev, "%s() fail i2cWriteBuf\n", + __func__); + break; + } + dev_dbg(dev, "%s(%d):", __func__, bytes2write); + count += bytes2write; + rc = i2c_nuvoton_wait_for_stat(chip, + TPM_STS_VALID | + TPM_STS_EXPECT, + TPM_STS_VALID | + TPM_STS_EXPECT, + chip->vendor.timeout_c, + NULL); + if (rc < 0) { + dev_err(dev, "%s() timeout on Expect\n", + __func__); + rc = -ETIMEDOUT; + break; + } + } + if (rc < 0) + continue; + + /* write last byte */ + rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W, 1, + &buf[count]); + if (rc < 0) { + dev_err(dev, "%s() fail to write last byte\n", + __func__); + rc = -EIO; + continue; + } + dev_dbg(dev, "%s(last): %02x", __func__, buf[count]); + rc = i2c_nuvoton_wait_for_stat(chip, + TPM_STS_VALID | TPM_STS_EXPECT, + TPM_STS_VALID, + chip->vendor.timeout_c, NULL); + if (rc) { + dev_err(dev, "%s() timeout on Expect to clear\n", + __func__); + rc = -ETIMEDOUT; + continue; + } + break; + } + if (rc < 0) { + /* retries == TPM_RETRY */ + i2c_nuvoton_ready(chip); + return rc; + } + /* execute the TPM command */ + rc = i2c_nuvoton_write_status(client, TPM_STS_GO); + if (rc < 0) { + dev_err(dev, "%s() fail to write Go\n", __func__); + i2c_nuvoton_ready(chip); + return rc; + } + ordinal = be32_to_cpu(*((__be32 *) (buf + 6))); + rc = i2c_nuvoton_wait_for_data_avail(chip, + tpm_calc_ordinal_duration(chip, + ordinal), + &chip->vendor.read_queue); + if (rc) { + dev_err(dev, "%s() timeout command duration\n", __func__); + i2c_nuvoton_ready(chip); + return rc; + } + + dev_dbg(dev, "%s() -> %zd\n", __func__, len); + return len; +} + +static bool i2c_nuvoton_req_canceled(struct tpm_chip *chip, u8 status) +{ + return (status == TPM_STS_COMMAND_READY); +} + +static const struct file_operations i2c_nuvoton_ops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .open = tpm_open, + .read = tpm_read, + .write = tpm_write, + .release = tpm_release, +}; + +static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL); +static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL); +static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL); +static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); +static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); +static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); +static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); +static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL); +static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); + +static struct attribute *i2c_nuvoton_attrs[] = { + &dev_attr_pubek.attr, + &dev_attr_pcrs.attr, + &dev_attr_enabled.attr, + &dev_attr_active.attr, + &dev_attr_owned.attr, + &dev_attr_temp_deactivated.attr, + &dev_attr_caps.attr, + &dev_attr_cancel.attr, + &dev_attr_durations.attr, + &dev_attr_timeouts.attr, + NULL, +}; + +static struct attribute_group i2c_nuvoton_attr_grp = { + .attrs = i2c_nuvoton_attrs +}; + +static const struct tpm_vendor_specific tpm_i2c = { + .status = i2c_nuvoton_read_status, + .recv = i2c_nuvoton_recv, + .send = i2c_nuvoton_send, + .cancel = i2c_nuvoton_ready, + .req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID, + .req_canceled = i2c_nuvoton_req_canceled, + .attr_group = &i2c_nuvoton_attr_grp, + .miscdev.fops = &i2c_nuvoton_ops, +}; + +/* The only purpose for the handler is to signal to any waiting threads that + * the interrupt is currently being asserted. The driver does not do any + * processing triggered by interrupts, and the chip provides no way to mask at + * the source (plus that would be slow over I2C). Run the IRQ as a one-shot, + * this means it cannot be shared. */ +static irqreturn_t i2c_nuvoton_int_handler(int dummy, void *dev_id) +{ + struct tpm_chip *chip = dev_id; + struct priv_data *priv = chip->vendor.priv; + + priv->intrs++; + wake_up(&chip->vendor.read_queue); + disable_irq_nosync(chip->vendor.irq); + return IRQ_HANDLED; +} + +static int get_vid(struct i2c_client *client, u32 *res) +{ + static const u8 vid_did_rid_value[] = { 0x50, 0x10, 0xfe }; + u32 temp; + s32 rc; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + rc = i2c_nuvoton_read_buf(client, TPM_VID_DID_RID, 4, (u8 *)&temp); + if (rc < 0) + return rc; + + /* check WPCT301 values - ignore RID */ + if (memcmp(&temp, vid_did_rid_value, sizeof(vid_did_rid_value))) { + /* + * f/w rev 2.81 has an issue where the VID_DID_RID is not + * reporting the right value. so give it another chance at + * offset 0x20 (FIFO_W). + */ + rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_W, 4, + (u8 *) (&temp)); + if (rc < 0) + return rc; + + /* check WPCT301 values - ignore RID */ + if (memcmp(&temp, vid_did_rid_value, + sizeof(vid_did_rid_value))) + return -ENODEV; + } + + *res = temp; + return 0; +} + +static int i2c_nuvoton_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int rc; + struct tpm_chip *chip; + struct device *dev = &client->dev; + u32 vid = 0; + + rc = get_vid(client, &vid); + if (rc) + return rc; + + dev_info(dev, "VID: %04X DID: %02X RID: %02X\n", (u16) vid, + (u8) (vid >> 16), (u8) (vid >> 24)); + + chip = tpm_register_hardware(dev, &tpm_i2c); + if (!chip) { + dev_err(dev, "%s() error in tpm_register_hardware\n", __func__); + return -ENODEV; + } + + chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data), + GFP_KERNEL); + init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&chip->vendor.int_queue); + + /* Default timeouts */ + chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + chip->vendor.timeout_b = msecs_to_jiffies(TPM_I2C_LONG_TIMEOUT); + chip->vendor.timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + chip->vendor.timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); + + /* + * I2C intfcaps (interrupt capabilitieis) in the chip are hard coded to: + * TPM_INTF_INT_LEVEL_LOW | TPM_INTF_DATA_AVAIL_INT + * The IRQ should be set in the i2c_board_info (which is done + * automatically in of_i2c_register_devices, for device tree users */ + chip->vendor.irq = client->irq; + + if (chip->vendor.irq) { + dev_dbg(dev, "%s() chip-vendor.irq\n", __func__); + rc = devm_request_irq(dev, chip->vendor.irq, + i2c_nuvoton_int_handler, + IRQF_TRIGGER_LOW, + chip->vendor.miscdev.name, + chip); + if (rc) { + dev_err(dev, "%s() Unable to request irq: %d for use\n", + __func__, chip->vendor.irq); + chip->vendor.irq = 0; + } else { + /* Clear any pending interrupt */ + i2c_nuvoton_ready(chip); + /* - wait for TPM_STS==0xA0 (stsValid, commandReady) */ + rc = i2c_nuvoton_wait_for_stat(chip, + TPM_STS_COMMAND_READY, + TPM_STS_COMMAND_READY, + chip->vendor.timeout_b, + NULL); + if (rc == 0) { + /* + * TIS is in ready state + * write dummy byte to enter reception state + * TPM_DATA_FIFO_W <- rc (0) + */ + rc = i2c_nuvoton_write_buf(client, + TPM_DATA_FIFO_W, + 1, (u8 *) (&rc)); + if (rc < 0) + goto out_err; + /* TPM_STS <- 0x40 (commandReady) */ + i2c_nuvoton_ready(chip); + } else { + /* + * timeout_b reached - command was + * aborted. TIS should now be in idle state - + * only TPM_STS_VALID should be set + */ + if (i2c_nuvoton_read_status(chip) != + TPM_STS_VALID) { + rc = -EIO; + goto out_err; + } + } + } + } + + if (tpm_get_timeouts(chip)) { + rc = -ENODEV; + goto out_err; + } + + if (tpm_do_selftest(chip)) { + rc = -ENODEV; + goto out_err; + } + + return 0; + +out_err: + tpm_dev_vendor_release(chip); + tpm_remove_hardware(chip->dev); + return rc; +} + +static int i2c_nuvoton_remove(struct i2c_client *client) +{ + struct device *dev = &(client->dev); + struct tpm_chip *chip = dev_get_drvdata(dev); + + if (chip) + tpm_dev_vendor_release(chip); + tpm_remove_hardware(dev); + kfree(chip); + return 0; +} + + +static const struct i2c_device_id i2c_nuvoton_id[] = { + {I2C_DRIVER_NAME, 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, i2c_nuvoton_id); + +#ifdef CONFIG_OF +static const struct of_device_id i2c_nuvoton_of_match[] = { + {.compatible = "nuvoton,npct501"}, + {.compatible = "winbond,wpct301"}, + {}, +}; +MODULE_DEVICE_TABLE(of, i2c_nuvoton_of_match); +#endif + +static SIMPLE_DEV_PM_OPS(i2c_nuvoton_pm_ops, tpm_pm_suspend, tpm_pm_resume); + +static struct i2c_driver i2c_nuvoton_driver = { + .id_table = i2c_nuvoton_id, + .probe = i2c_nuvoton_probe, + .remove = i2c_nuvoton_remove, + .driver = { + .name = I2C_DRIVER_NAME, + .owner = THIS_MODULE, + .pm = &i2c_nuvoton_pm_ops, + .of_match_table = of_match_ptr(i2c_nuvoton_of_match), + }, +}; + +module_i2c_driver(i2c_nuvoton_driver); + +MODULE_AUTHOR("Dan Morav (dan.morav@nuvoton.com)"); +MODULE_DESCRIPTION("Nuvoton TPM I2C Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c index 5bb8e2ddd3b3..a0d6ceb5d005 100644 --- a/drivers/char/tpm/tpm_i2c_stm_st33.c +++ b/drivers/char/tpm/tpm_i2c_stm_st33.c @@ -584,7 +584,7 @@ static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL); static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); -static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); static struct attribute *stm_tpm_attrs[] = { @@ -746,8 +746,6 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) tpm_get_timeouts(chip); - i2c_set_clientdata(client, chip); - dev_info(chip->dev, "TPM I2C Initialized\n"); return 0; _irq_set: @@ -807,24 +805,18 @@ static int tpm_st33_i2c_remove(struct i2c_client *client) #ifdef CONFIG_PM_SLEEP /* * tpm_st33_i2c_pm_suspend suspend the TPM device - * Added: Work around when suspend and no tpm application is running, suspend - * may fail because chip->data_buffer is not set (only set in tpm_open in Linux - * TPM core) * @param: client, the i2c_client drescription (TPM I2C description). * @param: mesg, the power management message. * @return: 0 in case of success. */ static int tpm_st33_i2c_pm_suspend(struct device *dev) { - struct tpm_chip *chip = dev_get_drvdata(dev); struct st33zp24_platform_data *pin_infos = dev->platform_data; int ret = 0; if (power_mgt) { gpio_set_value(pin_infos->io_lpcpd, 0); } else { - if (chip->data_buffer == NULL) - chip->data_buffer = pin_infos->tpm_i2c_buffer[0]; ret = tpm_pm_suspend(dev); } return ret; @@ -849,8 +841,6 @@ static int tpm_st33_i2c_pm_resume(struct device *dev) TPM_STS_VALID) == TPM_STS_VALID, chip->vendor.timeout_b); } else { - if (chip->data_buffer == NULL) - chip->data_buffer = pin_infos->tpm_i2c_buffer[0]; ret = tpm_pm_resume(dev); if (!ret) tpm_do_selftest(chip); diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c index 56b07c35a13e..2783a42aa732 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.c +++ b/drivers/char/tpm/tpm_ibmvtpm.c @@ -98,7 +98,7 @@ static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count) if (count < len) { dev_err(ibmvtpm->dev, - "Invalid size in recv: count=%ld, crq_size=%d\n", + "Invalid size in recv: count=%zd, crq_size=%d\n", count, len); return -EIO; } @@ -136,7 +136,7 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) if (count > ibmvtpm->rtce_size) { dev_err(ibmvtpm->dev, - "Invalid size in send: count=%ld, rtce_size=%d\n", + "Invalid size in send: count=%zd, rtce_size=%d\n", count, ibmvtpm->rtce_size); return -EIO; } @@ -419,7 +419,7 @@ static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); -static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL); static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index 2168d15bc728..8e562dc65601 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -452,12 +452,8 @@ int tpm_add_ppi(struct kobject *parent) { return sysfs_create_group(parent, &ppi_attr_grp); } -EXPORT_SYMBOL_GPL(tpm_add_ppi); void tpm_remove_ppi(struct kobject *parent) { sysfs_remove_group(parent, &ppi_attr_grp); } -EXPORT_SYMBOL_GPL(tpm_remove_ppi); - -MODULE_LICENSE("GPL"); diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 5796d0157ce0..1b74459c0723 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -448,7 +448,7 @@ static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL); static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL); static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL); -static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL); +static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL); static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel); static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL); static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL); diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c index 94c280d36e8b..c8ff4df81779 100644 --- a/drivers/char/tpm/xen-tpmfront.c +++ b/drivers/char/tpm/xen-tpmfront.c @@ -351,8 +351,6 @@ static int tpmfront_probe(struct xenbus_device *dev, tpm_get_timeouts(priv->chip); - dev_set_drvdata(&dev->dev, priv->chip); - return rv; } diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c index c73fc2b74de2..18c5b9b16645 100644 --- a/drivers/connector/cn_proc.c +++ b/drivers/connector/cn_proc.c @@ -32,11 +32,23 @@ #include <linux/atomic.h> #include <linux/pid_namespace.h> -#include <asm/unaligned.h> - #include <linux/cn_proc.h> -#define CN_PROC_MSG_SIZE (sizeof(struct cn_msg) + sizeof(struct proc_event)) +/* + * Size of a cn_msg followed by a proc_event structure. Since the + * sizeof struct cn_msg is a multiple of 4 bytes, but not 8 bytes, we + * add one 4-byte word to the size here, and then start the actual + * cn_msg structure 4 bytes into the stack buffer. The result is that + * the immediately following proc_event structure is aligned to 8 bytes. + */ +#define CN_PROC_MSG_SIZE (sizeof(struct cn_msg) + sizeof(struct proc_event) + 4) + +/* See comment above; we test our assumption about sizeof struct cn_msg here. */ +static inline struct cn_msg *buffer_to_cn_msg(__u8 *buffer) +{ + BUILD_BUG_ON(sizeof(struct cn_msg) != 20); + return (struct cn_msg *)(buffer + 4); +} static atomic_t proc_event_num_listeners = ATOMIC_INIT(0); static struct cb_id cn_proc_event_id = { CN_IDX_PROC, CN_VAL_PROC }; @@ -56,19 +68,19 @@ void proc_fork_connector(struct task_struct *task) { struct cn_msg *msg; struct proc_event *ev; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); struct timespec ts; struct task_struct *parent; if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_FORK; rcu_read_lock(); parent = rcu_dereference(task->real_parent); @@ -91,17 +103,17 @@ void proc_exec_connector(struct task_struct *task) struct cn_msg *msg; struct proc_event *ev; struct timespec ts; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_EXEC; ev->event_data.exec.process_pid = task->pid; ev->event_data.exec.process_tgid = task->tgid; @@ -117,14 +129,14 @@ void proc_id_connector(struct task_struct *task, int which_id) { struct cn_msg *msg; struct proc_event *ev; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); struct timespec ts; const struct cred *cred; if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); ev->what = which_id; @@ -145,7 +157,7 @@ void proc_id_connector(struct task_struct *task, int which_id) rcu_read_unlock(); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ @@ -159,17 +171,17 @@ void proc_sid_connector(struct task_struct *task) struct cn_msg *msg; struct proc_event *ev; struct timespec ts; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_SID; ev->event_data.sid.process_pid = task->pid; ev->event_data.sid.process_tgid = task->tgid; @@ -186,17 +198,17 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id) struct cn_msg *msg; struct proc_event *ev; struct timespec ts; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_PTRACE; ev->event_data.ptrace.process_pid = task->pid; ev->event_data.ptrace.process_tgid = task->tgid; @@ -221,17 +233,17 @@ void proc_comm_connector(struct task_struct *task) struct cn_msg *msg; struct proc_event *ev; struct timespec ts; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_COMM; ev->event_data.comm.process_pid = task->pid; ev->event_data.comm.process_tgid = task->tgid; @@ -248,18 +260,18 @@ void proc_coredump_connector(struct task_struct *task) { struct cn_msg *msg; struct proc_event *ev; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); struct timespec ts; if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_COREDUMP; ev->event_data.coredump.process_pid = task->pid; ev->event_data.coredump.process_tgid = task->tgid; @@ -275,18 +287,18 @@ void proc_exit_connector(struct task_struct *task) { struct cn_msg *msg; struct proc_event *ev; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); struct timespec ts; if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->what = PROC_EVENT_EXIT; ev->event_data.exit.process_pid = task->pid; ev->event_data.exit.process_tgid = task->tgid; @@ -312,18 +324,18 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack) { struct cn_msg *msg; struct proc_event *ev; - __u8 buffer[CN_PROC_MSG_SIZE]; + __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8); struct timespec ts; if (atomic_read(&proc_event_num_listeners) < 1) return; - msg = (struct cn_msg *)buffer; + msg = buffer_to_cn_msg(buffer); ev = (struct proc_event *)msg->data; memset(&ev->event_data, 0, sizeof(ev->event_data)); msg->seq = rcvd_seq; ktime_get_ts(&ts); /* get high res monotonic timestamp */ - put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); + ev->timestamp_ns = timespec_to_ns(&ts); ev->cpu = -1; ev->what = PROC_EVENT_NONE; ev->event_data.ack.err = err; diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index 218460fcd2e4..25a70d06c5bf 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -68,6 +68,9 @@ static void cs_check_cpu(int cpu, unsigned int load) dbs_info->requested_freq += get_freq_target(cs_tuners, policy); + if (dbs_info->requested_freq > policy->max) + dbs_info->requested_freq = policy->max; + __cpufreq_driver_target(policy, dbs_info->requested_freq, CPUFREQ_RELATION_H); return; diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 0806c31e5764..e6be63561fa6 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -328,10 +328,6 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy, dbs_data->cdata->gov_dbs_timer); } - /* - * conservative does not implement micro like ondemand - * governor, thus we are bound to jiffes/HZ - */ if (dbs_data->cdata->governor == GOV_CONSERVATIVE) { cs_dbs_info->down_skip = 0; cs_dbs_info->enable = 1; diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c index f2c75065ce19..dfd1643b0b2f 100644 --- a/drivers/cpufreq/exynos4210-cpufreq.c +++ b/drivers/cpufreq/exynos4210-cpufreq.c @@ -157,4 +157,3 @@ err_moutcore: pr_debug("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos4210_cpufreq_init); diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c index 8683304ce62c..efad5e657f6f 100644 --- a/drivers/cpufreq/exynos4x12-cpufreq.c +++ b/drivers/cpufreq/exynos4x12-cpufreq.c @@ -211,4 +211,3 @@ err_moutcore: pr_debug("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos4x12_cpufreq_init); diff --git a/drivers/cpufreq/exynos5250-cpufreq.c b/drivers/cpufreq/exynos5250-cpufreq.c index 9fae466d7746..8feda86fe42c 100644 --- a/drivers/cpufreq/exynos5250-cpufreq.c +++ b/drivers/cpufreq/exynos5250-cpufreq.c @@ -236,4 +236,3 @@ err_moutcore: pr_err("%s: failed initialization\n", __func__); return -EINVAL; } -EXPORT_SYMBOL(exynos5250_cpufreq_init); diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index be6d14307aa8..a0acd0bfba40 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -53,6 +53,7 @@ static unsigned int omap_getspeed(unsigned int cpu) static int omap_target(struct cpufreq_policy *policy, unsigned int index) { + int r, ret; struct dev_pm_opp *opp; unsigned long freq, volt = 0, volt_old = 0, tol = 0; unsigned int old_freq, new_freq; diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c index f42df7ec03c5..b7309c37033d 100644 --- a/drivers/cpufreq/tegra-cpufreq.c +++ b/drivers/cpufreq/tegra-cpufreq.c @@ -142,10 +142,8 @@ static int tegra_target(struct cpufreq_policy *policy, unsigned int index) mutex_lock(&tegra_cpu_lock); - if (is_suspended) { - ret = -EBUSY; + if (is_suspended) goto out; - } freq = freq_table[index].frequency; diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig index ca89f6b84b06..e7555ff4cafd 100644 --- a/drivers/crypto/caam/Kconfig +++ b/drivers/crypto/caam/Kconfig @@ -4,16 +4,29 @@ config CRYPTO_DEV_FSL_CAAM help Enables the driver module for Freescale's Cryptographic Accelerator and Assurance Module (CAAM), also known as the SEC version 4 (SEC4). - This module adds a job ring operation interface, and configures h/w + This module creates job ring devices, and configures h/w to operate as a DPAA component automatically, depending on h/w feature availability. To compile this driver as a module, choose M here: the module will be called caam. +config CRYPTO_DEV_FSL_CAAM_JR + tristate "Freescale CAAM Job Ring driver backend" + depends on CRYPTO_DEV_FSL_CAAM + default y + help + Enables the driver module for Job Rings which are part of + Freescale's Cryptographic Accelerator + and Assurance Module (CAAM). This module adds a job ring operation + interface. + + To compile this driver as a module, choose M here: the module + will be called caam_jr. + config CRYPTO_DEV_FSL_CAAM_RINGSIZE int "Job Ring size" - depends on CRYPTO_DEV_FSL_CAAM + depends on CRYPTO_DEV_FSL_CAAM_JR range 2 9 default "9" help @@ -31,7 +44,7 @@ config CRYPTO_DEV_FSL_CAAM_RINGSIZE config CRYPTO_DEV_FSL_CAAM_INTC bool "Job Ring interrupt coalescing" - depends on CRYPTO_DEV_FSL_CAAM + depends on CRYPTO_DEV_FSL_CAAM_JR default n help Enable the Job Ring's interrupt coalescing feature. @@ -62,7 +75,7 @@ config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD config CRYPTO_DEV_FSL_CAAM_CRYPTO_API tristate "Register algorithm implementations with the Crypto API" - depends on CRYPTO_DEV_FSL_CAAM + depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR default y select CRYPTO_ALGAPI select CRYPTO_AUTHENC @@ -76,7 +89,7 @@ config CRYPTO_DEV_FSL_CAAM_CRYPTO_API config CRYPTO_DEV_FSL_CAAM_AHASH_API tristate "Register hash algorithm implementations with Crypto API" - depends on CRYPTO_DEV_FSL_CAAM + depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR default y select CRYPTO_HASH help @@ -88,7 +101,7 @@ config CRYPTO_DEV_FSL_CAAM_AHASH_API config CRYPTO_DEV_FSL_CAAM_RNG_API tristate "Register caam device for hwrng API" - depends on CRYPTO_DEV_FSL_CAAM + depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR default y select CRYPTO_RNG select HW_RANDOM diff --git a/drivers/crypto/caam/Makefile b/drivers/crypto/caam/Makefile index d56bd0ec65d8..550758a333e7 100644 --- a/drivers/crypto/caam/Makefile +++ b/drivers/crypto/caam/Makefile @@ -6,8 +6,10 @@ ifeq ($(CONFIG_CRYPTO_DEV_FSL_CAAM_DEBUG), y) endif obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM) += caam.o +obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_JR) += caam_jr.o obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API) += caamalg.o obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_AHASH_API) += caamhash.o obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_RNG_API) += caamrng.o -caam-objs := ctrl.o jr.o error.o key_gen.o +caam-objs := ctrl.o +caam_jr-objs := jr.o key_gen.o error.o diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 7c63b72ecd75..4f44b71b9e24 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -86,6 +86,7 @@ #else #define debug(format, arg...) #endif +static struct list_head alg_list; /* Set DK bit in class 1 operation if shared */ static inline void append_dec_op1(u32 *desc, u32 type) @@ -2057,7 +2058,6 @@ static struct caam_alg_template driver_algs[] = { struct caam_crypto_alg { struct list_head entry; - struct device *ctrldev; int class1_alg_type; int class2_alg_type; int alg_op; @@ -2070,14 +2070,12 @@ static int caam_cra_init(struct crypto_tfm *tfm) struct caam_crypto_alg *caam_alg = container_of(alg, struct caam_crypto_alg, crypto_alg); struct caam_ctx *ctx = crypto_tfm_ctx(tfm); - struct caam_drv_private *priv = dev_get_drvdata(caam_alg->ctrldev); - int tgt_jr = atomic_inc_return(&priv->tfm_count); - /* - * distribute tfms across job rings to ensure in-order - * crypto request processing per tfm - */ - ctx->jrdev = priv->jrdev[(tgt_jr / 2) % priv->total_jobrs]; + ctx->jrdev = caam_jr_alloc(); + if (IS_ERR(ctx->jrdev)) { + pr_err("Job Ring Device allocation for transform failed\n"); + return PTR_ERR(ctx->jrdev); + } /* copy descriptor header template value */ ctx->class1_alg_type = OP_TYPE_CLASS1_ALG | caam_alg->class1_alg_type; @@ -2104,44 +2102,26 @@ static void caam_cra_exit(struct crypto_tfm *tfm) dma_unmap_single(ctx->jrdev, ctx->sh_desc_givenc_dma, desc_bytes(ctx->sh_desc_givenc), DMA_TO_DEVICE); + + caam_jr_free(ctx->jrdev); } static void __exit caam_algapi_exit(void) { - struct device_node *dev_node; - struct platform_device *pdev; - struct device *ctrldev; - struct caam_drv_private *priv; struct caam_crypto_alg *t_alg, *n; - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0"); - if (!dev_node) { - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0"); - if (!dev_node) - return; - } - - pdev = of_find_device_by_node(dev_node); - if (!pdev) - return; - - ctrldev = &pdev->dev; - of_node_put(dev_node); - priv = dev_get_drvdata(ctrldev); - - if (!priv->alg_list.next) + if (!alg_list.next) return; - list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) { + list_for_each_entry_safe(t_alg, n, &alg_list, entry) { crypto_unregister_alg(&t_alg->crypto_alg); list_del(&t_alg->entry); kfree(t_alg); } } -static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev, - struct caam_alg_template +static struct caam_crypto_alg *caam_alg_alloc(struct caam_alg_template *template) { struct caam_crypto_alg *t_alg; @@ -2149,7 +2129,7 @@ static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev, t_alg = kzalloc(sizeof(struct caam_crypto_alg), GFP_KERNEL); if (!t_alg) { - dev_err(ctrldev, "failed to allocate t_alg\n"); + pr_err("failed to allocate t_alg\n"); return ERR_PTR(-ENOMEM); } @@ -2181,62 +2161,39 @@ static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev, t_alg->class1_alg_type = template->class1_alg_type; t_alg->class2_alg_type = template->class2_alg_type; t_alg->alg_op = template->alg_op; - t_alg->ctrldev = ctrldev; return t_alg; } static int __init caam_algapi_init(void) { - struct device_node *dev_node; - struct platform_device *pdev; - struct device *ctrldev; - struct caam_drv_private *priv; int i = 0, err = 0; - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0"); - if (!dev_node) { - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0"); - if (!dev_node) - return -ENODEV; - } - - pdev = of_find_device_by_node(dev_node); - if (!pdev) - return -ENODEV; - - ctrldev = &pdev->dev; - priv = dev_get_drvdata(ctrldev); - of_node_put(dev_node); - - INIT_LIST_HEAD(&priv->alg_list); - - atomic_set(&priv->tfm_count, -1); + INIT_LIST_HEAD(&alg_list); /* register crypto algorithms the device supports */ for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { /* TODO: check if h/w supports alg */ struct caam_crypto_alg *t_alg; - t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]); + t_alg = caam_alg_alloc(&driver_algs[i]); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); - dev_warn(ctrldev, "%s alg allocation failed\n", - driver_algs[i].driver_name); + pr_warn("%s alg allocation failed\n", + driver_algs[i].driver_name); continue; } err = crypto_register_alg(&t_alg->crypto_alg); if (err) { - dev_warn(ctrldev, "%s alg registration failed\n", + pr_warn("%s alg registration failed\n", t_alg->crypto_alg.cra_driver_name); kfree(t_alg); } else - list_add_tail(&t_alg->entry, &priv->alg_list); + list_add_tail(&t_alg->entry, &alg_list); } - if (!list_empty(&priv->alg_list)) - dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n", - (char *)of_get_property(dev_node, "compatible", NULL)); + if (!list_empty(&alg_list)) + pr_info("caam algorithms registered in /proc/crypto\n"); return err; } diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index e732bd962e98..0378328f47a7 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -94,6 +94,9 @@ #define debug(format, arg...) #endif + +static struct list_head hash_list; + /* ahash per-session context */ struct caam_hash_ctx { struct device *jrdev; @@ -1653,7 +1656,6 @@ static struct caam_hash_template driver_hash[] = { struct caam_hash_alg { struct list_head entry; - struct device *ctrldev; int alg_type; int alg_op; struct ahash_alg ahash_alg; @@ -1670,7 +1672,6 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm) struct caam_hash_alg *caam_hash = container_of(alg, struct caam_hash_alg, ahash_alg); struct caam_hash_ctx *ctx = crypto_tfm_ctx(tfm); - struct caam_drv_private *priv = dev_get_drvdata(caam_hash->ctrldev); /* Sizes for MDHA running digests: MD5, SHA1, 224, 256, 384, 512 */ static const u8 runninglen[] = { HASH_MSG_LEN + MD5_DIGEST_SIZE, HASH_MSG_LEN + SHA1_DIGEST_SIZE, @@ -1678,15 +1679,17 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm) HASH_MSG_LEN + SHA256_DIGEST_SIZE, HASH_MSG_LEN + 64, HASH_MSG_LEN + SHA512_DIGEST_SIZE }; - int tgt_jr = atomic_inc_return(&priv->tfm_count); int ret = 0; /* - * distribute tfms across job rings to ensure in-order + * Get a Job ring from Job Ring driver to ensure in-order * crypto request processing per tfm */ - ctx->jrdev = priv->jrdev[tgt_jr % priv->total_jobrs]; - + ctx->jrdev = caam_jr_alloc(); + if (IS_ERR(ctx->jrdev)) { + pr_err("Job Ring Device allocation for transform failed\n"); + return PTR_ERR(ctx->jrdev); + } /* copy descriptor header template value */ ctx->alg_type = OP_TYPE_CLASS2_ALG | caam_hash->alg_type; ctx->alg_op = OP_TYPE_CLASS2_ALG | caam_hash->alg_op; @@ -1729,35 +1732,18 @@ static void caam_hash_cra_exit(struct crypto_tfm *tfm) !dma_mapping_error(ctx->jrdev, ctx->sh_desc_finup_dma)) dma_unmap_single(ctx->jrdev, ctx->sh_desc_finup_dma, desc_bytes(ctx->sh_desc_finup), DMA_TO_DEVICE); + + caam_jr_free(ctx->jrdev); } static void __exit caam_algapi_hash_exit(void) { - struct device_node *dev_node; - struct platform_device *pdev; - struct device *ctrldev; - struct caam_drv_private *priv; struct caam_hash_alg *t_alg, *n; - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0"); - if (!dev_node) { - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0"); - if (!dev_node) - return; - } - - pdev = of_find_device_by_node(dev_node); - if (!pdev) + if (!hash_list.next) return; - ctrldev = &pdev->dev; - of_node_put(dev_node); - priv = dev_get_drvdata(ctrldev); - - if (!priv->hash_list.next) - return; - - list_for_each_entry_safe(t_alg, n, &priv->hash_list, entry) { + list_for_each_entry_safe(t_alg, n, &hash_list, entry) { crypto_unregister_ahash(&t_alg->ahash_alg); list_del(&t_alg->entry); kfree(t_alg); @@ -1765,7 +1751,7 @@ static void __exit caam_algapi_hash_exit(void) } static struct caam_hash_alg * -caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template, +caam_hash_alloc(struct caam_hash_template *template, bool keyed) { struct caam_hash_alg *t_alg; @@ -1774,7 +1760,7 @@ caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template, t_alg = kzalloc(sizeof(struct caam_hash_alg), GFP_KERNEL); if (!t_alg) { - dev_err(ctrldev, "failed to allocate t_alg\n"); + pr_err("failed to allocate t_alg\n"); return ERR_PTR(-ENOMEM); } @@ -1805,37 +1791,15 @@ caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template, t_alg->alg_type = template->alg_type; t_alg->alg_op = template->alg_op; - t_alg->ctrldev = ctrldev; return t_alg; } static int __init caam_algapi_hash_init(void) { - struct device_node *dev_node; - struct platform_device *pdev; - struct device *ctrldev; - struct caam_drv_private *priv; int i = 0, err = 0; - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0"); - if (!dev_node) { - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0"); - if (!dev_node) - return -ENODEV; - } - - pdev = of_find_device_by_node(dev_node); - if (!pdev) - return -ENODEV; - - ctrldev = &pdev->dev; - priv = dev_get_drvdata(ctrldev); - of_node_put(dev_node); - - INIT_LIST_HEAD(&priv->hash_list); - - atomic_set(&priv->tfm_count, -1); + INIT_LIST_HEAD(&hash_list); /* register crypto algorithms the device supports */ for (i = 0; i < ARRAY_SIZE(driver_hash); i++) { @@ -1843,38 +1807,38 @@ static int __init caam_algapi_hash_init(void) struct caam_hash_alg *t_alg; /* register hmac version */ - t_alg = caam_hash_alloc(ctrldev, &driver_hash[i], true); + t_alg = caam_hash_alloc(&driver_hash[i], true); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); - dev_warn(ctrldev, "%s alg allocation failed\n", - driver_hash[i].driver_name); + pr_warn("%s alg allocation failed\n", + driver_hash[i].driver_name); continue; } err = crypto_register_ahash(&t_alg->ahash_alg); if (err) { - dev_warn(ctrldev, "%s alg registration failed\n", + pr_warn("%s alg registration failed\n", t_alg->ahash_alg.halg.base.cra_driver_name); kfree(t_alg); } else - list_add_tail(&t_alg->entry, &priv->hash_list); + list_add_tail(&t_alg->entry, &hash_list); /* register unkeyed version */ - t_alg = caam_hash_alloc(ctrldev, &driver_hash[i], false); + t_alg = caam_hash_alloc(&driver_hash[i], false); if (IS_ERR(t_alg)) { err = PTR_ERR(t_alg); - dev_warn(ctrldev, "%s alg allocation failed\n", - driver_hash[i].driver_name); + pr_warn("%s alg allocation failed\n", + driver_hash[i].driver_name); continue; } err = crypto_register_ahash(&t_alg->ahash_alg); if (err) { - dev_warn(ctrldev, "%s alg registration failed\n", + pr_warn("%s alg registration failed\n", t_alg->ahash_alg.halg.base.cra_driver_name); kfree(t_alg); } else - list_add_tail(&t_alg->entry, &priv->hash_list); + list_add_tail(&t_alg->entry, &hash_list); } return err; diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c index d1939a9539c0..28486b19fc36 100644 --- a/drivers/crypto/caam/caamrng.c +++ b/drivers/crypto/caam/caamrng.c @@ -273,34 +273,23 @@ static struct hwrng caam_rng = { static void __exit caam_rng_exit(void) { + caam_jr_free(rng_ctx.jrdev); hwrng_unregister(&caam_rng); } static int __init caam_rng_init(void) { - struct device_node *dev_node; - struct platform_device *pdev; - struct device *ctrldev; - struct caam_drv_private *priv; - - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0"); - if (!dev_node) { - dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0"); - if (!dev_node) - return -ENODEV; - } - - pdev = of_find_device_by_node(dev_node); - if (!pdev) - return -ENODEV; + struct device *dev; - ctrldev = &pdev->dev; - priv = dev_get_drvdata(ctrldev); - of_node_put(dev_node); + dev = caam_jr_alloc(); + if (IS_ERR(dev)) { + pr_err("Job Ring Device allocation for transform failed\n"); + return PTR_ERR(dev); + } - caam_init_rng(&rng_ctx, priv->jrdev[0]); + caam_init_rng(&rng_ctx, dev); - dev_info(priv->jrdev[0], "registering rng-caam\n"); + dev_info(dev, "registering rng-caam\n"); return hwrng_register(&caam_rng); } diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index bc6d820812b6..63fb1af2c431 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -16,82 +16,75 @@ #include "error.h" #include "ctrl.h" -static int caam_remove(struct platform_device *pdev) -{ - struct device *ctrldev; - struct caam_drv_private *ctrlpriv; - struct caam_drv_private_jr *jrpriv; - struct caam_full __iomem *topregs; - int ring, ret = 0; - - ctrldev = &pdev->dev; - ctrlpriv = dev_get_drvdata(ctrldev); - topregs = (struct caam_full __iomem *)ctrlpriv->ctrl; - - /* shut down JobRs */ - for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) { - ret |= caam_jr_shutdown(ctrlpriv->jrdev[ring]); - jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]); - irq_dispose_mapping(jrpriv->irq); - } - - /* Shut down debug views */ -#ifdef CONFIG_DEBUG_FS - debugfs_remove_recursive(ctrlpriv->dfs_root); -#endif - - /* Unmap controller region */ - iounmap(&topregs->ctrl); - - kfree(ctrlpriv->jrdev); - kfree(ctrlpriv); - - return ret; -} - /* * Descriptor to instantiate RNG State Handle 0 in normal mode and * load the JDKEK, TDKEK and TDSK registers */ -static void build_instantiation_desc(u32 *desc) +static void build_instantiation_desc(u32 *desc, int handle, int do_sk) { - u32 *jump_cmd; + u32 *jump_cmd, op_flags; init_job_desc(desc, 0); + op_flags = OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | + (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INIT; + /* INIT RNG in non-test mode */ - append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | - OP_ALG_AS_INIT); + append_operation(desc, op_flags); + + if (!handle && do_sk) { + /* + * For SH0, Secure Keys must be generated as well + */ + + /* wait for done */ + jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1); + set_jump_tgt_here(desc, jump_cmd); + + /* + * load 1 to clear written reg: + * resets the done interrrupt and returns the RNG to idle. + */ + append_load_imm_u32(desc, 1, LDST_SRCDST_WORD_CLRW); + + /* Initialize State Handle */ + append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | + OP_ALG_AAI_RNG4_SK); + } - /* wait for done */ - jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1); - set_jump_tgt_here(desc, jump_cmd); + append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT); +} - /* - * load 1 to clear written reg: - * resets the done interrupt and returns the RNG to idle. - */ - append_load_imm_u32(desc, 1, LDST_SRCDST_WORD_CLRW); +/* Descriptor for deinstantiation of State Handle 0 of the RNG block. */ +static void build_deinstantiation_desc(u32 *desc, int handle) +{ + init_job_desc(desc, 0); - /* generate secure keys (non-test) */ + /* Uninstantiate State Handle 0 */ append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG | - OP_ALG_RNG4_SK); + (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INITFINAL); + + append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT); } -static int instantiate_rng(struct device *ctrldev) +/* + * run_descriptor_deco0 - runs a descriptor on DECO0, under direct control of + * the software (no JR/QI used). + * @ctrldev - pointer to device + * @status - descriptor status, after being run + * + * Return: - 0 if no error occurred + * - -ENODEV if the DECO couldn't be acquired + * - -EAGAIN if an error occurred while executing the descriptor + */ +static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc, + u32 *status) { struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev); struct caam_full __iomem *topregs; unsigned int timeout = 100000; - u32 *desc; - int i, ret = 0; - - desc = kmalloc(CAAM_CMD_SZ * 6, GFP_KERNEL | GFP_DMA); - if (!desc) { - dev_err(ctrldev, "can't allocate RNG init descriptor memory\n"); - return -ENOMEM; - } - build_instantiation_desc(desc); + u32 deco_dbg_reg, flags; + int i; /* Set the bit to request direct access to DECO0 */ topregs = (struct caam_full __iomem *)ctrlpriv->ctrl; @@ -103,36 +96,219 @@ static int instantiate_rng(struct device *ctrldev) if (!timeout) { dev_err(ctrldev, "failed to acquire DECO 0\n"); - ret = -EIO; - goto out; + clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE); + return -ENODEV; } for (i = 0; i < desc_len(desc); i++) - topregs->deco.descbuf[i] = *(desc + i); + wr_reg32(&topregs->deco.descbuf[i], *(desc + i)); + + flags = DECO_JQCR_WHL; + /* + * If the descriptor length is longer than 4 words, then the + * FOUR bit in JRCTRL register must be set. + */ + if (desc_len(desc) >= 4) + flags |= DECO_JQCR_FOUR; - wr_reg32(&topregs->deco.jr_ctl_hi, DECO_JQCR_WHL | DECO_JQCR_FOUR); + /* Instruct the DECO to execute it */ + wr_reg32(&topregs->deco.jr_ctl_hi, flags); timeout = 10000000; - while ((rd_reg32(&topregs->deco.desc_dbg) & DECO_DBG_VALID) && - --timeout) + do { + deco_dbg_reg = rd_reg32(&topregs->deco.desc_dbg); + /* + * If an error occured in the descriptor, then + * the DECO status field will be set to 0x0D + */ + if ((deco_dbg_reg & DESC_DBG_DECO_STAT_MASK) == + DESC_DBG_DECO_STAT_HOST_ERR) + break; cpu_relax(); + } while ((deco_dbg_reg & DESC_DBG_DECO_STAT_VALID) && --timeout); - if (!timeout) { - dev_err(ctrldev, "failed to instantiate RNG\n"); - ret = -EIO; - } + *status = rd_reg32(&topregs->deco.op_status_hi) & + DECO_OP_STATUS_HI_ERR_MASK; + /* Mark the DECO as free */ clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE); -out: + + if (!timeout) + return -EAGAIN; + + return 0; +} + +/* + * instantiate_rng - builds and executes a descriptor on DECO0, + * which initializes the RNG block. + * @ctrldev - pointer to device + * @state_handle_mask - bitmask containing the instantiation status + * for the RNG4 state handles which exist in + * the RNG4 block: 1 if it's been instantiated + * by an external entry, 0 otherwise. + * @gen_sk - generate data to be loaded into the JDKEK, TDKEK and TDSK; + * Caution: this can be done only once; if the keys need to be + * regenerated, a POR is required + * + * Return: - 0 if no error occurred + * - -ENOMEM if there isn't enough memory to allocate the descriptor + * - -ENODEV if DECO0 couldn't be acquired + * - -EAGAIN if an error occurred when executing the descriptor + * f.i. there was a RNG hardware error due to not "good enough" + * entropy being aquired. + */ +static int instantiate_rng(struct device *ctrldev, int state_handle_mask, + int gen_sk) +{ + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev); + struct caam_full __iomem *topregs; + struct rng4tst __iomem *r4tst; + u32 *desc, status, rdsta_val; + int ret = 0, sh_idx; + + topregs = (struct caam_full __iomem *)ctrlpriv->ctrl; + r4tst = &topregs->ctrl.r4tst[0]; + + desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL); + if (!desc) + return -ENOMEM; + + for (sh_idx = 0; sh_idx < RNG4_MAX_HANDLES; sh_idx++) { + /* + * If the corresponding bit is set, this state handle + * was initialized by somebody else, so it's left alone. + */ + if ((1 << sh_idx) & state_handle_mask) + continue; + + /* Create the descriptor for instantiating RNG State Handle */ + build_instantiation_desc(desc, sh_idx, gen_sk); + + /* Try to run it through DECO0 */ + ret = run_descriptor_deco0(ctrldev, desc, &status); + + /* + * If ret is not 0, or descriptor status is not 0, then + * something went wrong. No need to try the next state + * handle (if available), bail out here. + * Also, if for some reason, the State Handle didn't get + * instantiated although the descriptor has finished + * without any error (HW optimizations for later + * CAAM eras), then try again. + */ + rdsta_val = + rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IFMASK; + if (status || !(rdsta_val & (1 << sh_idx))) + ret = -EAGAIN; + if (ret) + break; + + dev_info(ctrldev, "Instantiated RNG4 SH%d\n", sh_idx); + /* Clear the contents before recreating the descriptor */ + memset(desc, 0x00, CAAM_CMD_SZ * 7); + } + kfree(desc); + return ret; } /* - * By default, the TRNG runs for 200 clocks per sample; - * 1600 clocks per sample generates better entropy. + * deinstantiate_rng - builds and executes a descriptor on DECO0, + * which deinitializes the RNG block. + * @ctrldev - pointer to device + * @state_handle_mask - bitmask containing the instantiation status + * for the RNG4 state handles which exist in + * the RNG4 block: 1 if it's been instantiated + * + * Return: - 0 if no error occurred + * - -ENOMEM if there isn't enough memory to allocate the descriptor + * - -ENODEV if DECO0 couldn't be acquired + * - -EAGAIN if an error occurred when executing the descriptor */ -static void kick_trng(struct platform_device *pdev) +static int deinstantiate_rng(struct device *ctrldev, int state_handle_mask) +{ + u32 *desc, status; + int sh_idx, ret = 0; + + desc = kmalloc(CAAM_CMD_SZ * 3, GFP_KERNEL); + if (!desc) + return -ENOMEM; + + for (sh_idx = 0; sh_idx < RNG4_MAX_HANDLES; sh_idx++) { + /* + * If the corresponding bit is set, then it means the state + * handle was initialized by us, and thus it needs to be + * deintialized as well + */ + if ((1 << sh_idx) & state_handle_mask) { + /* + * Create the descriptor for deinstantating this state + * handle + */ + build_deinstantiation_desc(desc, sh_idx); + + /* Try to run it through DECO0 */ + ret = run_descriptor_deco0(ctrldev, desc, &status); + + if (ret || status) { + dev_err(ctrldev, + "Failed to deinstantiate RNG4 SH%d\n", + sh_idx); + break; + } + dev_info(ctrldev, "Deinstantiated RNG4 SH%d\n", sh_idx); + } + } + + kfree(desc); + + return ret; +} + +static int caam_remove(struct platform_device *pdev) +{ + struct device *ctrldev; + struct caam_drv_private *ctrlpriv; + struct caam_full __iomem *topregs; + int ring, ret = 0; + + ctrldev = &pdev->dev; + ctrlpriv = dev_get_drvdata(ctrldev); + topregs = (struct caam_full __iomem *)ctrlpriv->ctrl; + + /* Remove platform devices for JobRs */ + for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) { + if (ctrlpriv->jrpdev[ring]) + of_device_unregister(ctrlpriv->jrpdev[ring]); + } + + /* De-initialize RNG state handles initialized by this driver. */ + if (ctrlpriv->rng4_sh_init) + deinstantiate_rng(ctrldev, ctrlpriv->rng4_sh_init); + + /* Shut down debug views */ +#ifdef CONFIG_DEBUG_FS + debugfs_remove_recursive(ctrlpriv->dfs_root); +#endif + + /* Unmap controller region */ + iounmap(&topregs->ctrl); + + kfree(ctrlpriv->jrpdev); + kfree(ctrlpriv); + + return ret; +} + +/* + * kick_trng - sets the various parameters for enabling the initialization + * of the RNG4 block in CAAM + * @pdev - pointer to the platform device + * @ent_delay - Defines the length (in system clocks) of each entropy sample. + */ +static void kick_trng(struct platform_device *pdev, int ent_delay) { struct device *ctrldev = &pdev->dev; struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev); @@ -145,14 +321,31 @@ static void kick_trng(struct platform_device *pdev) /* put RNG4 into program mode */ setbits32(&r4tst->rtmctl, RTMCTL_PRGM); - /* 1600 clocks per sample */ + + /* + * Performance-wise, it does not make sense to + * set the delay to a value that is lower + * than the last one that worked (i.e. the state handles + * were instantiated properly. Thus, instead of wasting + * time trying to set the values controlling the sample + * frequency, the function simply returns. + */ + val = (rd_reg32(&r4tst->rtsdctl) & RTSDCTL_ENT_DLY_MASK) + >> RTSDCTL_ENT_DLY_SHIFT; + if (ent_delay <= val) { + /* put RNG4 into run mode */ + clrbits32(&r4tst->rtmctl, RTMCTL_PRGM); + return; + } + val = rd_reg32(&r4tst->rtsdctl); - val = (val & ~RTSDCTL_ENT_DLY_MASK) | (1600 << RTSDCTL_ENT_DLY_SHIFT); + val = (val & ~RTSDCTL_ENT_DLY_MASK) | + (ent_delay << RTSDCTL_ENT_DLY_SHIFT); wr_reg32(&r4tst->rtsdctl, val); - /* min. freq. count */ - wr_reg32(&r4tst->rtfrqmin, 400); - /* max. freq. count */ - wr_reg32(&r4tst->rtfrqmax, 6400); + /* min. freq. count, equal to 1/4 of the entropy sample length */ + wr_reg32(&r4tst->rtfrqmin, ent_delay >> 2); + /* max. freq. count, equal to 8 times the entropy sample length */ + wr_reg32(&r4tst->rtfrqmax, ent_delay << 3); /* put RNG4 into run mode */ clrbits32(&r4tst->rtmctl, RTMCTL_PRGM); } @@ -193,7 +386,7 @@ EXPORT_SYMBOL(caam_get_era); /* Probe routine for CAAM top (controller) level */ static int caam_probe(struct platform_device *pdev) { - int ret, ring, rspec; + int ret, ring, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN; u64 caam_id; struct device *dev; struct device_node *nprop, *np; @@ -258,8 +451,9 @@ static int caam_probe(struct platform_device *pdev) rspec++; } - ctrlpriv->jrdev = kzalloc(sizeof(struct device *) * rspec, GFP_KERNEL); - if (ctrlpriv->jrdev == NULL) { + ctrlpriv->jrpdev = kzalloc(sizeof(struct platform_device *) * rspec, + GFP_KERNEL); + if (ctrlpriv->jrpdev == NULL) { iounmap(&topregs->ctrl); return -ENOMEM; } @@ -267,13 +461,24 @@ static int caam_probe(struct platform_device *pdev) ring = 0; ctrlpriv->total_jobrs = 0; for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring") { - caam_jr_probe(pdev, np, ring); + ctrlpriv->jrpdev[ring] = + of_platform_device_create(np, NULL, dev); + if (!ctrlpriv->jrpdev[ring]) { + pr_warn("JR%d Platform device creation error\n", ring); + continue; + } ctrlpriv->total_jobrs++; ring++; } if (!ring) { for_each_compatible_node(np, NULL, "fsl,sec4.0-job-ring") { - caam_jr_probe(pdev, np, ring); + ctrlpriv->jrpdev[ring] = + of_platform_device_create(np, NULL, dev); + if (!ctrlpriv->jrpdev[ring]) { + pr_warn("JR%d Platform device creation error\n", + ring); + continue; + } ctrlpriv->total_jobrs++; ring++; } @@ -299,16 +504,55 @@ static int caam_probe(struct platform_device *pdev) /* * If SEC has RNG version >= 4 and RNG state handle has not been - * already instantiated ,do RNG instantiation + * already instantiated, do RNG instantiation */ - if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4 && - !(rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IF0)) { - kick_trng(pdev); - ret = instantiate_rng(dev); + if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4) { + ctrlpriv->rng4_sh_init = + rd_reg32(&topregs->ctrl.r4tst[0].rdsta); + /* + * If the secure keys (TDKEK, JDKEK, TDSK), were already + * generated, signal this to the function that is instantiating + * the state handles. An error would occur if RNG4 attempts + * to regenerate these keys before the next POR. + */ + gen_sk = ctrlpriv->rng4_sh_init & RDSTA_SKVN ? 0 : 1; + ctrlpriv->rng4_sh_init &= RDSTA_IFMASK; + do { + int inst_handles = + rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & + RDSTA_IFMASK; + /* + * If either SH were instantiated by somebody else + * (e.g. u-boot) then it is assumed that the entropy + * parameters are properly set and thus the function + * setting these (kick_trng(...)) is skipped. + * Also, if a handle was instantiated, do not change + * the TRNG parameters. + */ + if (!(ctrlpriv->rng4_sh_init || inst_handles)) { + kick_trng(pdev, ent_delay); + ent_delay += 400; + } + /* + * if instantiate_rng(...) fails, the loop will rerun + * and the kick_trng(...) function will modfiy the + * upper and lower limits of the entropy sampling + * interval, leading to a sucessful initialization of + * the RNG. + */ + ret = instantiate_rng(dev, inst_handles, + gen_sk); + } while ((ret == -EAGAIN) && (ent_delay < RTSDCTL_ENT_DLY_MAX)); if (ret) { + dev_err(dev, "failed to instantiate RNG"); caam_remove(pdev); return ret; } + /* + * Set handles init'ed by this module as the complement of the + * already initialized ones + */ + ctrlpriv->rng4_sh_init = ~ctrlpriv->rng4_sh_init & RDSTA_IFMASK; /* Enable RDB bit so that RNG works faster */ setbits32(&topregs->ctrl.scfgr, SCFGR_RDBENABLE); diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h index 53b296f78b0d..7e4500f18df6 100644 --- a/drivers/crypto/caam/desc.h +++ b/drivers/crypto/caam/desc.h @@ -1155,8 +1155,15 @@ struct sec4_sg_entry { /* randomizer AAI set */ #define OP_ALG_AAI_RNG (0x00 << OP_ALG_AAI_SHIFT) -#define OP_ALG_AAI_RNG_NOZERO (0x10 << OP_ALG_AAI_SHIFT) -#define OP_ALG_AAI_RNG_ODD (0x20 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG_NZB (0x10 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG_OBP (0x20 << OP_ALG_AAI_SHIFT) + +/* RNG4 AAI set */ +#define OP_ALG_AAI_RNG4_SH_0 (0x00 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG4_SH_1 (0x01 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG4_PS (0x40 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG4_AI (0x80 << OP_ALG_AAI_SHIFT) +#define OP_ALG_AAI_RNG4_SK (0x100 << OP_ALG_AAI_SHIFT) /* hmac/smac AAI set */ #define OP_ALG_AAI_HASH (0x00 << OP_ALG_AAI_SHIFT) @@ -1178,12 +1185,6 @@ struct sec4_sg_entry { #define OP_ALG_AAI_GSM (0x10 << OP_ALG_AAI_SHIFT) #define OP_ALG_AAI_EDGE (0x20 << OP_ALG_AAI_SHIFT) -/* RNG4 set */ -#define OP_ALG_RNG4_SHIFT 4 -#define OP_ALG_RNG4_MASK (0x1f3 << OP_ALG_RNG4_SHIFT) - -#define OP_ALG_RNG4_SK (0x100 << OP_ALG_RNG4_SHIFT) - #define OP_ALG_AS_SHIFT 2 #define OP_ALG_AS_MASK (0x3 << OP_ALG_AS_SHIFT) #define OP_ALG_AS_UPDATE (0 << OP_ALG_AS_SHIFT) diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h index 34c4b9f7fbfa..6d85fcc5bd0a 100644 --- a/drivers/crypto/caam/intern.h +++ b/drivers/crypto/caam/intern.h @@ -37,13 +37,16 @@ struct caam_jrentry_info { /* Private sub-storage for a single JobR */ struct caam_drv_private_jr { - struct device *parentdev; /* points back to controller dev */ - struct platform_device *jr_pdev;/* points to platform device for JR */ + struct list_head list_node; /* Job Ring device list */ + struct device *dev; int ridx; struct caam_job_ring __iomem *rregs; /* JobR's register space */ struct tasklet_struct irqtask; int irq; /* One per queue */ + /* Number of scatterlist crypt transforms active on the JobR */ + atomic_t tfm_count ____cacheline_aligned; + /* Job ring info */ int ringsize; /* Size of rings (assume input = output) */ struct caam_jrentry_info *entinfo; /* Alloc'ed 1 per ring entry */ @@ -63,7 +66,7 @@ struct caam_drv_private_jr { struct caam_drv_private { struct device *dev; - struct device **jrdev; /* Alloc'ed array per sub-device */ + struct platform_device **jrpdev; /* Alloc'ed array per sub-device */ struct platform_device *pdev; /* Physical-presence section */ @@ -80,12 +83,11 @@ struct caam_drv_private { u8 qi_present; /* Nonzero if QI present in device */ int secvio_irq; /* Security violation interrupt number */ - /* which jr allocated to scatterlist crypto */ - atomic_t tfm_count ____cacheline_aligned; - /* list of registered crypto algorithms (mk generic context handle?) */ - struct list_head alg_list; - /* list of registered hash algorithms (mk generic context handle?) */ - struct list_head hash_list; +#define RNG4_MAX_HANDLES 2 + /* RNG4 block */ + u32 rng4_sh_init; /* This bitmap shows which of the State + Handles of the RNG4 block are initialized + by this driver */ /* * debugfs entries for developer view into driver/device diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index bdb786d5a5e5..d23356d20e1c 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -13,6 +13,113 @@ #include "desc.h" #include "intern.h" +struct jr_driver_data { + /* List of Physical JobR's with the Driver */ + struct list_head jr_list; + spinlock_t jr_alloc_lock; /* jr_list lock */ +} ____cacheline_aligned; + +static struct jr_driver_data driver_data; + +static int caam_reset_hw_jr(struct device *dev) +{ + struct caam_drv_private_jr *jrp = dev_get_drvdata(dev); + unsigned int timeout = 100000; + + /* + * mask interrupts since we are going to poll + * for reset completion status + */ + setbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK); + + /* initiate flush (required prior to reset) */ + wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET); + while (((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) == + JRINT_ERR_HALT_INPROGRESS) && --timeout) + cpu_relax(); + + if ((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) != + JRINT_ERR_HALT_COMPLETE || timeout == 0) { + dev_err(dev, "failed to flush job ring %d\n", jrp->ridx); + return -EIO; + } + + /* initiate reset */ + timeout = 100000; + wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET); + while ((rd_reg32(&jrp->rregs->jrcommand) & JRCR_RESET) && --timeout) + cpu_relax(); + + if (timeout == 0) { + dev_err(dev, "failed to reset job ring %d\n", jrp->ridx); + return -EIO; + } + + /* unmask interrupts */ + clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK); + + return 0; +} + +/* + * Shutdown JobR independent of platform property code + */ +int caam_jr_shutdown(struct device *dev) +{ + struct caam_drv_private_jr *jrp = dev_get_drvdata(dev); + dma_addr_t inpbusaddr, outbusaddr; + int ret; + + ret = caam_reset_hw_jr(dev); + + tasklet_kill(&jrp->irqtask); + + /* Release interrupt */ + free_irq(jrp->irq, dev); + + /* Free rings */ + inpbusaddr = rd_reg64(&jrp->rregs->inpring_base); + outbusaddr = rd_reg64(&jrp->rregs->outring_base); + dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH, + jrp->inpring, inpbusaddr); + dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH, + jrp->outring, outbusaddr); + kfree(jrp->entinfo); + + return ret; +} + +static int caam_jr_remove(struct platform_device *pdev) +{ + int ret; + struct device *jrdev; + struct caam_drv_private_jr *jrpriv; + + jrdev = &pdev->dev; + jrpriv = dev_get_drvdata(jrdev); + + /* + * Return EBUSY if job ring already allocated. + */ + if (atomic_read(&jrpriv->tfm_count)) { + dev_err(jrdev, "Device is busy\n"); + return -EBUSY; + } + + /* Remove the node from Physical JobR list maintained by driver */ + spin_lock(&driver_data.jr_alloc_lock); + list_del(&jrpriv->list_node); + spin_unlock(&driver_data.jr_alloc_lock); + + /* Release ring */ + ret = caam_jr_shutdown(jrdev); + if (ret) + dev_err(jrdev, "Failed to shut down job ring\n"); + irq_dispose_mapping(jrpriv->irq); + + return ret; +} + /* Main per-ring interrupt handler */ static irqreturn_t caam_jr_interrupt(int irq, void *st_dev) { @@ -128,6 +235,59 @@ static void caam_jr_dequeue(unsigned long devarg) } /** + * caam_jr_alloc() - Alloc a job ring for someone to use as needed. + * + * returns : pointer to the newly allocated physical + * JobR dev can be written to if successful. + **/ +struct device *caam_jr_alloc(void) +{ + struct caam_drv_private_jr *jrpriv, *min_jrpriv = NULL; + struct device *dev = NULL; + int min_tfm_cnt = INT_MAX; + int tfm_cnt; + + spin_lock(&driver_data.jr_alloc_lock); + + if (list_empty(&driver_data.jr_list)) { + spin_unlock(&driver_data.jr_alloc_lock); + return ERR_PTR(-ENODEV); + } + + list_for_each_entry(jrpriv, &driver_data.jr_list, list_node) { + tfm_cnt = atomic_read(&jrpriv->tfm_count); + if (tfm_cnt < min_tfm_cnt) { + min_tfm_cnt = tfm_cnt; + min_jrpriv = jrpriv; + } + if (!min_tfm_cnt) + break; + } + + if (min_jrpriv) { + atomic_inc(&min_jrpriv->tfm_count); + dev = min_jrpriv->dev; + } + spin_unlock(&driver_data.jr_alloc_lock); + + return dev; +} +EXPORT_SYMBOL(caam_jr_alloc); + +/** + * caam_jr_free() - Free the Job Ring + * @rdev - points to the dev that identifies the Job ring to + * be released. + **/ +void caam_jr_free(struct device *rdev) +{ + struct caam_drv_private_jr *jrpriv = dev_get_drvdata(rdev); + + atomic_dec(&jrpriv->tfm_count); +} +EXPORT_SYMBOL(caam_jr_free); + +/** * caam_jr_enqueue() - Enqueue a job descriptor head. Returns 0 if OK, * -EBUSY if the queue is full, -EIO if it cannot map the caller's * descriptor. @@ -207,46 +367,6 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, } EXPORT_SYMBOL(caam_jr_enqueue); -static int caam_reset_hw_jr(struct device *dev) -{ - struct caam_drv_private_jr *jrp = dev_get_drvdata(dev); - unsigned int timeout = 100000; - - /* - * mask interrupts since we are going to poll - * for reset completion status - */ - setbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK); - - /* initiate flush (required prior to reset) */ - wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET); - while (((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) == - JRINT_ERR_HALT_INPROGRESS) && --timeout) - cpu_relax(); - - if ((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) != - JRINT_ERR_HALT_COMPLETE || timeout == 0) { - dev_err(dev, "failed to flush job ring %d\n", jrp->ridx); - return -EIO; - } - - /* initiate reset */ - timeout = 100000; - wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET); - while ((rd_reg32(&jrp->rregs->jrcommand) & JRCR_RESET) && --timeout) - cpu_relax(); - - if (timeout == 0) { - dev_err(dev, "failed to reset job ring %d\n", jrp->ridx); - return -EIO; - } - - /* unmask interrupts */ - clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK); - - return 0; -} - /* * Init JobR independent of platform property detection */ @@ -262,7 +382,7 @@ static int caam_jr_init(struct device *dev) /* Connect job ring interrupt handler. */ error = request_irq(jrp->irq, caam_jr_interrupt, IRQF_SHARED, - "caam-jobr", dev); + dev_name(dev), dev); if (error) { dev_err(dev, "can't connect JobR %d interrupt (%d)\n", jrp->ridx, jrp->irq); @@ -318,86 +438,43 @@ static int caam_jr_init(struct device *dev) return 0; } -/* - * Shutdown JobR independent of platform property code - */ -int caam_jr_shutdown(struct device *dev) -{ - struct caam_drv_private_jr *jrp = dev_get_drvdata(dev); - dma_addr_t inpbusaddr, outbusaddr; - int ret; - - ret = caam_reset_hw_jr(dev); - - tasklet_kill(&jrp->irqtask); - - /* Release interrupt */ - free_irq(jrp->irq, dev); - - /* Free rings */ - inpbusaddr = rd_reg64(&jrp->rregs->inpring_base); - outbusaddr = rd_reg64(&jrp->rregs->outring_base); - dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH, - jrp->inpring, inpbusaddr); - dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH, - jrp->outring, outbusaddr); - kfree(jrp->entinfo); - of_device_unregister(jrp->jr_pdev); - - return ret; -} /* - * Probe routine for each detected JobR subsystem. It assumes that - * property detection was picked up externally. + * Probe routine for each detected JobR subsystem. */ -int caam_jr_probe(struct platform_device *pdev, struct device_node *np, - int ring) +static int caam_jr_probe(struct platform_device *pdev) { - struct device *ctrldev, *jrdev; - struct platform_device *jr_pdev; - struct caam_drv_private *ctrlpriv; + struct device *jrdev; + struct device_node *nprop; + struct caam_job_ring __iomem *ctrl; struct caam_drv_private_jr *jrpriv; - u32 *jroffset; + static int total_jobrs; int error; - ctrldev = &pdev->dev; - ctrlpriv = dev_get_drvdata(ctrldev); - + jrdev = &pdev->dev; jrpriv = kmalloc(sizeof(struct caam_drv_private_jr), GFP_KERNEL); - if (jrpriv == NULL) { - dev_err(ctrldev, "can't alloc private mem for job ring %d\n", - ring); + if (!jrpriv) return -ENOMEM; - } - jrpriv->parentdev = ctrldev; /* point back to parent */ - jrpriv->ridx = ring; /* save ring identity relative to detection */ - /* - * Derive a pointer to the detected JobRs regs - * Driver has already iomapped the entire space, we just - * need to add in the offset to this JobR. Don't know if I - * like this long-term, but it'll run - */ - jroffset = (u32 *)of_get_property(np, "reg", NULL); - jrpriv->rregs = (struct caam_job_ring __iomem *)((void *)ctrlpriv->ctrl - + *jroffset); + dev_set_drvdata(jrdev, jrpriv); - /* Build a local dev for each detected queue */ - jr_pdev = of_platform_device_create(np, NULL, ctrldev); - if (jr_pdev == NULL) { - kfree(jrpriv); - return -EINVAL; + /* save ring identity relative to detection */ + jrpriv->ridx = total_jobrs++; + + nprop = pdev->dev.of_node; + /* Get configuration properties from device tree */ + /* First, get register page */ + ctrl = of_iomap(nprop, 0); + if (!ctrl) { + dev_err(jrdev, "of_iomap() failed\n"); + return -ENOMEM; } - jrpriv->jr_pdev = jr_pdev; - jrdev = &jr_pdev->dev; - dev_set_drvdata(jrdev, jrpriv); - ctrlpriv->jrdev[ring] = jrdev; + jrpriv->rregs = (struct caam_job_ring __force *)ctrl; if (sizeof(dma_addr_t) == sizeof(u64)) - if (of_device_is_compatible(np, "fsl,sec-v5.0-job-ring")) + if (of_device_is_compatible(nprop, "fsl,sec-v5.0-job-ring")) dma_set_mask(jrdev, DMA_BIT_MASK(40)); else dma_set_mask(jrdev, DMA_BIT_MASK(36)); @@ -405,15 +482,61 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np, dma_set_mask(jrdev, DMA_BIT_MASK(32)); /* Identify the interrupt */ - jrpriv->irq = irq_of_parse_and_map(np, 0); + jrpriv->irq = irq_of_parse_and_map(nprop, 0); /* Now do the platform independent part */ error = caam_jr_init(jrdev); /* now turn on hardware */ if (error) { - of_device_unregister(jr_pdev); kfree(jrpriv); return error; } - return error; + jrpriv->dev = jrdev; + spin_lock(&driver_data.jr_alloc_lock); + list_add_tail(&jrpriv->list_node, &driver_data.jr_list); + spin_unlock(&driver_data.jr_alloc_lock); + + atomic_set(&jrpriv->tfm_count, 0); + + return 0; +} + +static struct of_device_id caam_jr_match[] = { + { + .compatible = "fsl,sec-v4.0-job-ring", + }, + { + .compatible = "fsl,sec4.0-job-ring", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, caam_jr_match); + +static struct platform_driver caam_jr_driver = { + .driver = { + .name = "caam_jr", + .owner = THIS_MODULE, + .of_match_table = caam_jr_match, + }, + .probe = caam_jr_probe, + .remove = caam_jr_remove, +}; + +static int __init jr_driver_init(void) +{ + spin_lock_init(&driver_data.jr_alloc_lock); + INIT_LIST_HEAD(&driver_data.jr_list); + return platform_driver_register(&caam_jr_driver); +} + +static void __exit jr_driver_exit(void) +{ + platform_driver_unregister(&caam_jr_driver); } + +module_init(jr_driver_init); +module_exit(jr_driver_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("FSL CAAM JR request backend"); +MODULE_AUTHOR("Freescale Semiconductor - NMG/STC"); diff --git a/drivers/crypto/caam/jr.h b/drivers/crypto/caam/jr.h index 9d8741a59037..97113a6d6c58 100644 --- a/drivers/crypto/caam/jr.h +++ b/drivers/crypto/caam/jr.h @@ -8,12 +8,11 @@ #define JR_H /* Prototypes for backend-level services exposed to APIs */ +struct device *caam_jr_alloc(void); +void caam_jr_free(struct device *rdev); int caam_jr_enqueue(struct device *dev, u32 *desc, void (*cbk)(struct device *dev, u32 *desc, u32 status, void *areq), void *areq); -extern int caam_jr_probe(struct platform_device *pdev, struct device_node *np, - int ring); -extern int caam_jr_shutdown(struct device *dev); #endif /* JR_H */ diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h index 4455396918de..d50174f45b21 100644 --- a/drivers/crypto/caam/regs.h +++ b/drivers/crypto/caam/regs.h @@ -245,7 +245,7 @@ struct rngtst { /* RNG4 TRNG test registers */ struct rng4tst { -#define RTMCTL_PRGM 0x00010000 /* 1 -> program mode, 0 -> run mode */ +#define RTMCTL_PRGM 0x00010000 /* 1 -> program mode, 0 -> run mode */ u32 rtmctl; /* misc. control register */ u32 rtscmisc; /* statistical check misc. register */ u32 rtpkrrng; /* poker range register */ @@ -255,6 +255,8 @@ struct rng4tst { }; #define RTSDCTL_ENT_DLY_SHIFT 16 #define RTSDCTL_ENT_DLY_MASK (0xffff << RTSDCTL_ENT_DLY_SHIFT) +#define RTSDCTL_ENT_DLY_MIN 1200 +#define RTSDCTL_ENT_DLY_MAX 12800 u32 rtsdctl; /* seed control register */ union { u32 rtsblim; /* PRGM=1: sparse bit limit register */ @@ -266,7 +268,11 @@ struct rng4tst { u32 rtfrqcnt; /* PRGM=0: freq. count register */ }; u32 rsvd1[40]; +#define RDSTA_SKVT 0x80000000 +#define RDSTA_SKVN 0x40000000 #define RDSTA_IF0 0x00000001 +#define RDSTA_IF1 0x00000002 +#define RDSTA_IFMASK (RDSTA_IF1 | RDSTA_IF0) u32 rdsta; u32 rsvd2[15]; }; @@ -692,6 +698,7 @@ struct caam_deco { u32 jr_ctl_hi; /* CxJRR - JobR Control Register @800 */ u32 jr_ctl_lo; u64 jr_descaddr; /* CxDADR - JobR Descriptor Address */ +#define DECO_OP_STATUS_HI_ERR_MASK 0xF00000FF u32 op_status_hi; /* DxOPSTA - DECO Operation Status */ u32 op_status_lo; u32 rsvd24[2]; @@ -706,12 +713,13 @@ struct caam_deco { u32 rsvd29[48]; u32 descbuf[64]; /* DxDESB - Descriptor buffer */ u32 rscvd30[193]; +#define DESC_DBG_DECO_STAT_HOST_ERR 0x00D00000 +#define DESC_DBG_DECO_STAT_VALID 0x80000000 +#define DESC_DBG_DECO_STAT_MASK 0x00F00000 u32 desc_dbg; /* DxDDR - DECO Debug Register */ u32 rsvd31[126]; }; -/* DECO DBG Register Valid Bit*/ -#define DECO_DBG_VALID 0x80000000 #define DECO_JQCR_WHL 0x20000000 #define DECO_JQCR_FOUR 0x10000000 diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h index e0037c8ee243..b12ff85f4241 100644 --- a/drivers/crypto/caam/sg_sw_sec4.h +++ b/drivers/crypto/caam/sg_sw_sec4.h @@ -117,6 +117,21 @@ static int dma_unmap_sg_chained(struct device *dev, struct scatterlist *sg, return nents; } +/* Map SG page in kernel virtual address space and copy */ +static inline void sg_map_copy(u8 *dest, struct scatterlist *sg, + int len, int offset) +{ + u8 *mapped_addr; + + /* + * Page here can be user-space pinned using get_user_pages + * Same must be kmapped before use and kunmapped subsequently + */ + mapped_addr = kmap_atomic(sg_page(sg)); + memcpy(dest, mapped_addr + offset, len); + kunmap_atomic(mapped_addr); +} + /* Copy from len bytes of sg to dest, starting from beginning */ static inline void sg_copy(u8 *dest, struct scatterlist *sg, unsigned int len) { @@ -124,15 +139,15 @@ static inline void sg_copy(u8 *dest, struct scatterlist *sg, unsigned int len) int cpy_index = 0, next_cpy_index = current_sg->length; while (next_cpy_index < len) { - memcpy(dest + cpy_index, (u8 *) sg_virt(current_sg), - current_sg->length); + sg_map_copy(dest + cpy_index, current_sg, current_sg->length, + current_sg->offset); current_sg = scatterwalk_sg_next(current_sg); cpy_index = next_cpy_index; next_cpy_index += current_sg->length; } if (cpy_index < len) - memcpy(dest + cpy_index, (u8 *) sg_virt(current_sg), - len - cpy_index); + sg_map_copy(dest + cpy_index, current_sg, len-cpy_index, + current_sg->offset); } /* Copy sg data, from to_skip to end, to dest */ @@ -140,7 +155,7 @@ static inline void sg_copy_part(u8 *dest, struct scatterlist *sg, int to_skip, unsigned int end) { struct scatterlist *current_sg = sg; - int sg_index, cpy_index; + int sg_index, cpy_index, offset; sg_index = current_sg->length; while (sg_index <= to_skip) { @@ -148,9 +163,10 @@ static inline void sg_copy_part(u8 *dest, struct scatterlist *sg, sg_index += current_sg->length; } cpy_index = sg_index - to_skip; - memcpy(dest, (u8 *) sg_virt(current_sg) + - current_sg->length - cpy_index, cpy_index); - current_sg = scatterwalk_sg_next(current_sg); - if (end - sg_index) + offset = current_sg->offset + current_sg->length - cpy_index; + sg_map_copy(dest, current_sg, cpy_index, offset); + if (end - sg_index) { + current_sg = scatterwalk_sg_next(current_sg); sg_copy(dest + cpy_index, current_sg, end - sg_index); + } } diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c index a8a7dd4b0d25..247ab8048f5b 100644 --- a/drivers/crypto/dcp.c +++ b/drivers/crypto/dcp.c @@ -733,12 +733,9 @@ static int dcp_probe(struct platform_device *pdev) platform_set_drvdata(pdev, dev); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - dev_err(&pdev->dev, "failed to get IORESOURCE_MEM\n"); - return -ENXIO; - } - dev->dcp_regs_base = devm_ioremap(&pdev->dev, r->start, - resource_size(r)); + dev->dcp_regs_base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(dev->dcp_regs_base)) + return PTR_ERR(dev->dcp_regs_base); dcp_set(dev, DCP_CTRL_SFRST, DCP_REG_CTRL); udelay(10); @@ -762,7 +759,8 @@ static int dcp_probe(struct platform_device *pdev) return -EIO; } dev->dcp_vmi_irq = r->start; - ret = request_irq(dev->dcp_vmi_irq, dcp_vmi_irq, 0, "dcp", dev); + ret = devm_request_irq(&pdev->dev, dev->dcp_vmi_irq, dcp_vmi_irq, 0, + "dcp", dev); if (ret != 0) { dev_err(&pdev->dev, "can't request_irq (0)\n"); return -EIO; @@ -771,15 +769,14 @@ static int dcp_probe(struct platform_device *pdev) r = platform_get_resource(pdev, IORESOURCE_IRQ, 1); if (!r) { dev_err(&pdev->dev, "can't get IRQ resource (1)\n"); - ret = -EIO; - goto err_free_irq0; + return -EIO; } dev->dcp_irq = r->start; - ret = request_irq(dev->dcp_irq, dcp_irq, 0, "dcp", dev); + ret = devm_request_irq(&pdev->dev, dev->dcp_irq, dcp_irq, 0, "dcp", + dev); if (ret != 0) { dev_err(&pdev->dev, "can't request_irq (1)\n"); - ret = -EIO; - goto err_free_irq0; + return -EIO; } dev->hw_pkg[0] = dma_alloc_coherent(&pdev->dev, @@ -788,8 +785,7 @@ static int dcp_probe(struct platform_device *pdev) GFP_KERNEL); if (!dev->hw_pkg[0]) { dev_err(&pdev->dev, "Could not allocate hw descriptors\n"); - ret = -ENOMEM; - goto err_free_irq1; + return -ENOMEM; } for (i = 1; i < DCP_MAX_PKG; i++) { @@ -848,16 +844,14 @@ err_unregister: for (j = 0; j < i; j++) crypto_unregister_alg(&algs[j]); err_free_key_iv: + tasklet_kill(&dev->done_task); + tasklet_kill(&dev->queue_task); dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base, dev->payload_base_dma); err_free_hw_packet: dma_free_coherent(&pdev->dev, DCP_MAX_PKG * sizeof(struct dcp_hw_packet), dev->hw_pkg[0], dev->hw_phys_pkg); -err_free_irq1: - free_irq(dev->dcp_irq, dev); -err_free_irq0: - free_irq(dev->dcp_vmi_irq, dev); return ret; } @@ -868,23 +862,20 @@ static int dcp_remove(struct platform_device *pdev) int j; dev = platform_get_drvdata(pdev); - dma_free_coherent(&pdev->dev, - DCP_MAX_PKG * sizeof(struct dcp_hw_packet), - dev->hw_pkg[0], dev->hw_phys_pkg); - - dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base, - dev->payload_base_dma); + misc_deregister(&dev->dcp_bootstream_misc); - free_irq(dev->dcp_irq, dev); - free_irq(dev->dcp_vmi_irq, dev); + for (j = 0; j < ARRAY_SIZE(algs); j++) + crypto_unregister_alg(&algs[j]); tasklet_kill(&dev->done_task); tasklet_kill(&dev->queue_task); - for (j = 0; j < ARRAY_SIZE(algs); j++) - crypto_unregister_alg(&algs[j]); + dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base, + dev->payload_base_dma); - misc_deregister(&dev->dcp_bootstream_misc); + dma_free_coherent(&pdev->dev, + DCP_MAX_PKG * sizeof(struct dcp_hw_packet), + dev->hw_pkg[0], dev->hw_phys_pkg); return 0; } diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c index 214357e12dc0..9dd6e01eac33 100644 --- a/drivers/crypto/ixp4xx_crypto.c +++ b/drivers/crypto/ixp4xx_crypto.c @@ -1149,32 +1149,24 @@ static int aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) { struct ixp_ctx *ctx = crypto_aead_ctx(tfm); - struct rtattr *rta = (struct rtattr *)key; - struct crypto_authenc_key_param *param; + struct crypto_authenc_keys keys; - if (!RTA_OK(rta, keylen)) - goto badkey; - if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM) - goto badkey; - if (RTA_PAYLOAD(rta) < sizeof(*param)) + if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) goto badkey; - param = RTA_DATA(rta); - ctx->enckey_len = be32_to_cpu(param->enckeylen); - - key += RTA_ALIGN(rta->rta_len); - keylen -= RTA_ALIGN(rta->rta_len); + if (keys.authkeylen > sizeof(ctx->authkey)) + goto badkey; - if (keylen < ctx->enckey_len) + if (keys.enckeylen > sizeof(ctx->enckey)) goto badkey; - ctx->authkey_len = keylen - ctx->enckey_len; - memcpy(ctx->enckey, key + ctx->authkey_len, ctx->enckey_len); - memcpy(ctx->authkey, key, ctx->authkey_len); + memcpy(ctx->authkey, keys.authkey, keys.authkeylen); + memcpy(ctx->enckey, keys.enckey, keys.enckeylen); + ctx->authkey_len = keys.authkeylen; + ctx->enckey_len = keys.enckeylen; return aead_setup(tfm, crypto_aead_authsize(tfm)); badkey: - ctx->enckey_len = 0; crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); return -EINVAL; } diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 3374a3ebe4c7..8d1e6f8e9e9c 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -907,7 +907,7 @@ static int mv_cra_hash_hmac_sha1_init(struct crypto_tfm *tfm) return mv_cra_hash_init(tfm, "sha1", COP_HMAC_SHA1, SHA1_BLOCK_SIZE); } -irqreturn_t crypto_int(int irq, void *priv) +static irqreturn_t crypto_int(int irq, void *priv) { u32 val; @@ -928,7 +928,7 @@ irqreturn_t crypto_int(int irq, void *priv) return IRQ_HANDLED; } -struct crypto_alg mv_aes_alg_ecb = { +static struct crypto_alg mv_aes_alg_ecb = { .cra_name = "ecb(aes)", .cra_driver_name = "mv-ecb-aes", .cra_priority = 300, @@ -951,7 +951,7 @@ struct crypto_alg mv_aes_alg_ecb = { }, }; -struct crypto_alg mv_aes_alg_cbc = { +static struct crypto_alg mv_aes_alg_cbc = { .cra_name = "cbc(aes)", .cra_driver_name = "mv-cbc-aes", .cra_priority = 300, @@ -975,7 +975,7 @@ struct crypto_alg mv_aes_alg_cbc = { }, }; -struct ahash_alg mv_sha1_alg = { +static struct ahash_alg mv_sha1_alg = { .init = mv_hash_init, .update = mv_hash_update, .final = mv_hash_final, @@ -999,7 +999,7 @@ struct ahash_alg mv_sha1_alg = { } }; -struct ahash_alg mv_hmac_sha1_alg = { +static struct ahash_alg mv_hmac_sha1_alg = { .init = mv_hash_init, .update = mv_hash_update, .final = mv_hash_final, @@ -1084,7 +1084,7 @@ static int mv_probe(struct platform_device *pdev) goto err_unmap_sram; } - ret = request_irq(irq, crypto_int, IRQF_DISABLED, dev_name(&pdev->dev), + ret = request_irq(irq, crypto_int, 0, dev_name(&pdev->dev), cp); if (ret) goto err_thread; @@ -1187,7 +1187,7 @@ static struct platform_driver marvell_crypto = { .driver = { .owner = THIS_MODULE, .name = "mv_crypto", - .of_match_table = of_match_ptr(mv_cesa_of_match_table), + .of_match_table = mv_cesa_of_match_table, }, }; MODULE_ALIAS("platform:mv_crypto"); diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index ce791c2f81f7..a9ccbf14096e 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -275,7 +275,7 @@ static int omap_aes_write_ctrl(struct omap_aes_dev *dd) if (dd->flags & FLAGS_CBC) val |= AES_REG_CTRL_CBC; if (dd->flags & FLAGS_CTR) { - val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_32; + val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_128; mask = AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_MASK; } if (dd->flags & FLAGS_ENCRYPT) @@ -554,7 +554,7 @@ static int omap_aes_crypt_dma_stop(struct omap_aes_dev *dd) return err; } -int omap_aes_check_aligned(struct scatterlist *sg) +static int omap_aes_check_aligned(struct scatterlist *sg) { while (sg) { if (!IS_ALIGNED(sg->offset, 4)) @@ -566,7 +566,7 @@ int omap_aes_check_aligned(struct scatterlist *sg) return 0; } -int omap_aes_copy_sgs(struct omap_aes_dev *dd) +static int omap_aes_copy_sgs(struct omap_aes_dev *dd) { void *buf_in, *buf_out; int pages; diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index e28104b4aab0..e45aaaf0db30 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -2033,3 +2033,4 @@ module_platform_driver(omap_sham_driver); MODULE_DESCRIPTION("OMAP SHA1/MD5 hw acceleration support."); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Dmitry Kasatkin"); +MODULE_ALIAS("platform:omap-sham"); diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c index 888f7f4a6d3f..a6175ba6d238 100644 --- a/drivers/crypto/picoxcell_crypto.c +++ b/drivers/crypto/picoxcell_crypto.c @@ -495,45 +495,29 @@ static int spacc_aead_setkey(struct crypto_aead *tfm, const u8 *key, { struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct spacc_alg *alg = to_spacc_alg(tfm->base.__crt_alg); - struct rtattr *rta = (void *)key; - struct crypto_authenc_key_param *param; - unsigned int authkeylen, enckeylen; + struct crypto_authenc_keys keys; int err = -EINVAL; - if (!RTA_OK(rta, keylen)) + if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) goto badkey; - if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM) + if (keys.enckeylen > AES_MAX_KEY_SIZE) goto badkey; - if (RTA_PAYLOAD(rta) < sizeof(*param)) - goto badkey; - - param = RTA_DATA(rta); - enckeylen = be32_to_cpu(param->enckeylen); - - key += RTA_ALIGN(rta->rta_len); - keylen -= RTA_ALIGN(rta->rta_len); - - if (keylen < enckeylen) - goto badkey; - - authkeylen = keylen - enckeylen; - - if (enckeylen > AES_MAX_KEY_SIZE) + if (keys.authkeylen > sizeof(ctx->hash_ctx)) goto badkey; if ((alg->ctrl_default & SPACC_CRYPTO_ALG_MASK) == SPA_CTRL_CIPH_ALG_AES) - err = spacc_aead_aes_setkey(tfm, key + authkeylen, enckeylen); + err = spacc_aead_aes_setkey(tfm, keys.enckey, keys.enckeylen); else - err = spacc_aead_des_setkey(tfm, key + authkeylen, enckeylen); + err = spacc_aead_des_setkey(tfm, keys.enckey, keys.enckeylen); if (err) goto badkey; - memcpy(ctx->hash_ctx, key, authkeylen); - ctx->hash_key_len = authkeylen; + memcpy(ctx->hash_ctx, keys.authkey, keys.authkeylen); + ctx->hash_key_len = keys.authkeylen; return 0; diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c index d7bb8bac36e9..785a9ded7bdf 100644 --- a/drivers/crypto/sahara.c +++ b/drivers/crypto/sahara.c @@ -1058,7 +1058,7 @@ static struct platform_driver sahara_driver = { .driver = { .name = SAHARA_NAME, .owner = THIS_MODULE, - .of_match_table = of_match_ptr(sahara_dt_ids), + .of_match_table = sahara_dt_ids, }, .id_table = sahara_platform_ids, }; diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 6cd0e6038583..905de4427e7c 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -673,39 +673,20 @@ static int aead_setkey(struct crypto_aead *authenc, const u8 *key, unsigned int keylen) { struct talitos_ctx *ctx = crypto_aead_ctx(authenc); - struct rtattr *rta = (void *)key; - struct crypto_authenc_key_param *param; - unsigned int authkeylen; - unsigned int enckeylen; - - if (!RTA_OK(rta, keylen)) - goto badkey; + struct crypto_authenc_keys keys; - if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM) + if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) goto badkey; - if (RTA_PAYLOAD(rta) < sizeof(*param)) + if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE) goto badkey; - param = RTA_DATA(rta); - enckeylen = be32_to_cpu(param->enckeylen); - - key += RTA_ALIGN(rta->rta_len); - keylen -= RTA_ALIGN(rta->rta_len); - - if (keylen < enckeylen) - goto badkey; + memcpy(ctx->key, keys.authkey, keys.authkeylen); + memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen); - authkeylen = keylen - enckeylen; - - if (keylen > TALITOS_MAX_KEY_SIZE) - goto badkey; - - memcpy(&ctx->key, key, keylen); - - ctx->keylen = keylen; - ctx->enckeylen = enckeylen; - ctx->authkeylen = authkeylen; + ctx->keylen = keys.authkeylen + keys.enckeylen; + ctx->enckeylen = keys.enckeylen; + ctx->authkeylen = keys.authkeylen; return 0; diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c index fa05e3c329bd..060eecc5dbc3 100644 --- a/drivers/crypto/tegra-aes.c +++ b/drivers/crypto/tegra-aes.c @@ -27,6 +27,8 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> @@ -199,8 +201,6 @@ static void aes_workqueue_handler(struct work_struct *work); static DECLARE_WORK(aes_work, aes_workqueue_handler); static struct workqueue_struct *aes_wq; -extern unsigned long long tegra_chip_uid(void); - static inline u32 aes_readl(struct tegra_aes_dev *dd, u32 offset) { return readl(dd->io_base + offset); @@ -713,13 +713,12 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed, struct tegra_aes_dev *dd = aes_dev; struct tegra_aes_ctx *ctx = &rng_ctx; struct tegra_aes_slot *key_slot; - struct timespec ts; int ret = 0; - u64 nsec, tmp[2]; + u8 tmp[16]; /* 16 bytes = 128 bits of entropy */ u8 *dt; if (!ctx || !dd) { - dev_err(dd->dev, "ctx=0x%x, dd=0x%x\n", + pr_err("ctx=0x%x, dd=0x%x\n", (unsigned int)ctx, (unsigned int)dd); return -EINVAL; } @@ -778,14 +777,8 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed, if (dd->ivlen >= (2 * DEFAULT_RNG_BLK_SZ + AES_KEYSIZE_128)) { dt = dd->iv + DEFAULT_RNG_BLK_SZ + AES_KEYSIZE_128; } else { - getnstimeofday(&ts); - nsec = timespec_to_ns(&ts); - do_div(nsec, 1000); - nsec ^= dd->ctr << 56; - dd->ctr++; - tmp[0] = nsec; - tmp[1] = tegra_chip_uid(); - dt = (u8 *)tmp; + get_random_bytes(tmp, sizeof(tmp)); + dt = tmp; } memcpy(dd->dt, dt, DEFAULT_RNG_BLK_SZ); @@ -804,7 +797,7 @@ static int tegra_aes_cra_init(struct crypto_tfm *tfm) return 0; } -void tegra_aes_cra_exit(struct crypto_tfm *tfm) +static void tegra_aes_cra_exit(struct crypto_tfm *tfm) { struct tegra_aes_ctx *ctx = crypto_ablkcipher_ctx((struct crypto_ablkcipher *)tfm); @@ -924,7 +917,7 @@ static int tegra_aes_probe(struct platform_device *pdev) } /* Initialize the vde clock */ - dd->aes_clk = clk_get(dev, "vde"); + dd->aes_clk = devm_clk_get(dev, "vde"); if (IS_ERR(dd->aes_clk)) { dev_err(dev, "iclock intialization failed.\n"); err = -ENODEV; @@ -1033,8 +1026,6 @@ out: if (dd->buf_out) dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES, dd->buf_out, dd->dma_buf_out); - if (!IS_ERR(dd->aes_clk)) - clk_put(dd->aes_clk); if (aes_wq) destroy_workqueue(aes_wq); spin_lock(&list_lock); @@ -1068,7 +1059,6 @@ static int tegra_aes_remove(struct platform_device *pdev) dd->buf_in, dd->dma_buf_in); dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES, dd->buf_out, dd->dma_buf_out); - clk_put(dd->aes_clk); aes_dev = NULL; return 0; diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index dd2874ec1927..446687cc2334 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -89,14 +89,15 @@ config AT_HDMAC Support the Atmel AHB DMA controller. config FSL_DMA - tristate "Freescale Elo and Elo Plus DMA support" + tristate "Freescale Elo series DMA support" depends on FSL_SOC select DMA_ENGINE select ASYNC_TX_ENABLE_CHANNEL_SWITCH ---help--- - Enable support for the Freescale Elo and Elo Plus DMA controllers. - The Elo is the DMA controller on some 82xx and 83xx parts, and the - Elo Plus is the DMA controller on 85xx and 86xx parts. + Enable support for the Freescale Elo series DMA controllers. + The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the + EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on + some Txxx and Bxxx parts. config MPC512X_DMA tristate "Freescale MPC512x built-in DMA engine support" diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index e51a9832ef0d..16a2aa28f856 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1164,42 +1164,12 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x, kfree(txd); } -static void pl08x_unmap_buffers(struct pl08x_txd *txd) -{ - struct device *dev = txd->vd.tx.chan->device->dev; - struct pl08x_sg *dsg; - - if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->vd.tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE) - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_single(dev, dsg->src_addr, dsg->len, - DMA_TO_DEVICE); - else { - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_page(dev, dsg->src_addr, dsg->len, - DMA_TO_DEVICE); - } - } - if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->vd.tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE) - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_single(dev, dsg->dst_addr, dsg->len, - DMA_FROM_DEVICE); - else - list_for_each_entry(dsg, &txd->dsg_list, node) - dma_unmap_page(dev, dsg->dst_addr, dsg->len, - DMA_FROM_DEVICE); - } -} - static void pl08x_desc_free(struct virt_dma_desc *vd) { struct pl08x_txd *txd = to_pl08x_txd(&vd->tx); struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan); - if (!plchan->slave) - pl08x_unmap_buffers(txd); - + dma_descriptor_unmap(txd); if (!txd->done) pl08x_release_mux(plchan); @@ -1252,7 +1222,7 @@ static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan, size_t bytes = 0; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; /* @@ -1267,7 +1237,7 @@ static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan, spin_lock_irqsave(&plchan->vc.lock, flags); ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) { + if (ret != DMA_COMPLETE) { vd = vchan_find_desc(&plchan->vc, cookie); if (vd) { /* On the issued list, so hasn't been processed yet */ @@ -2138,8 +2108,7 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) writel(0x000000FF, pl08x->base + PL080_ERR_CLEAR); writel(0x000000FF, pl08x->base + PL080_TC_CLEAR); - ret = request_irq(adev->irq[0], pl08x_irq, IRQF_DISABLED, - DRIVER_NAME, pl08x); + ret = request_irq(adev->irq[0], pl08x_irq, 0, DRIVER_NAME, pl08x); if (ret) { dev_err(&adev->dev, "%s failed to request interrupt %d\n", __func__, adev->irq[0]); diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index c787f38a186a..e2c04dc81e2a 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -344,31 +344,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc) /* move myself to free_list */ list_move(&desc->desc_node, &atchan->free_list); - /* unmap dma addresses (not on slave channels) */ - if (!atchan->chan_common.private) { - struct device *parent = chan2parent(&atchan->chan_common); - if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(parent, - desc->lli.daddr, - desc->len, DMA_FROM_DEVICE); - else - dma_unmap_page(parent, - desc->lli.daddr, - desc->len, DMA_FROM_DEVICE); - } - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(parent, - desc->lli.saddr, - desc->len, DMA_TO_DEVICE); - else - dma_unmap_page(parent, - desc->lli.saddr, - desc->len, DMA_TO_DEVICE); - } - } - + dma_descriptor_unmap(txd); /* for cyclic transfers, * no need to replay callback function while stopping */ if (!atc_chan_is_cyclic(atchan)) { @@ -1102,7 +1078,7 @@ atc_tx_status(struct dma_chan *chan, int bytes = 0; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; /* * There's no point calculating the residue if there's diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index 31011d2a26fc..3c6716e0b78e 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -2369,7 +2369,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; dma_set_residue(txstate, coh901318_get_bytes_left(chan)); @@ -2694,7 +2694,7 @@ static int __init coh901318_probe(struct platform_device *pdev) if (irq < 0) return irq; - err = devm_request_irq(&pdev->dev, irq, dma_irq_handler, IRQF_DISABLED, + err = devm_request_irq(&pdev->dev, irq, dma_irq_handler, 0, "coh901318", base); if (err) return err; diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index 7c82b92f9b16..c29dacff66fa 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -141,6 +141,9 @@ struct cppi41_dd { const struct chan_queues *queues_rx; const struct chan_queues *queues_tx; struct chan_queues td_queue; + + /* context for suspend/resume */ + unsigned int dma_tdfdq; }; #define FIST_COMPLETION_QUEUE 93 @@ -263,6 +266,15 @@ static u32 pd_trans_len(u32 val) return val & ((1 << (DESC_LENGTH_BITS_NUM + 1)) - 1); } +static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num) +{ + u32 desc; + + desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num)); + desc &= ~0x1f; + return desc; +} + static irqreturn_t cppi41_irq(int irq, void *data) { struct cppi41_dd *cdd = data; @@ -300,8 +312,7 @@ static irqreturn_t cppi41_irq(int irq, void *data) q_num = __fls(val); val &= ~(1 << q_num); q_num += 32 * i; - desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(q_num)); - desc &= ~0x1f; + desc = cppi41_pop_desc(cdd, q_num); c = desc_to_chan(cdd, desc); if (WARN_ON(!c)) { pr_err("%s() q %d desc %08x\n", __func__, @@ -353,7 +364,7 @@ static enum dma_status cppi41_dma_tx_status(struct dma_chan *chan, /* lock */ ret = dma_cookie_status(chan, cookie, txstate); - if (txstate && ret == DMA_SUCCESS) + if (txstate && ret == DMA_COMPLETE) txstate->residue = c->residue; /* unlock */ @@ -517,15 +528,6 @@ static void cppi41_compute_td_desc(struct cppi41_desc *d) d->pd0 = DESC_TYPE_TEARD << DESC_TYPE; } -static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num) -{ - u32 desc; - - desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num)); - desc &= ~0x1f; - return desc; -} - static int cppi41_tear_down_chan(struct cppi41_channel *c) { struct cppi41_dd *cdd = c->cdd; @@ -561,36 +563,26 @@ static int cppi41_tear_down_chan(struct cppi41_channel *c) c->td_retry = 100; } - if (!c->td_seen) { - unsigned td_comp_queue; + if (!c->td_seen || !c->td_desc_seen) { - if (c->is_tx) - td_comp_queue = cdd->td_queue.complete; - else - td_comp_queue = c->q_comp_num; + desc_phys = cppi41_pop_desc(cdd, cdd->td_queue.complete); + if (!desc_phys) + desc_phys = cppi41_pop_desc(cdd, c->q_comp_num); - desc_phys = cppi41_pop_desc(cdd, td_comp_queue); - if (desc_phys) { - __iormb(); + if (desc_phys == c->desc_phys) { + c->td_desc_seen = 1; + + } else if (desc_phys == td_desc_phys) { + u32 pd0; - if (desc_phys == td_desc_phys) { - u32 pd0; - pd0 = td->pd0; - WARN_ON((pd0 >> DESC_TYPE) != DESC_TYPE_TEARD); - WARN_ON(!c->is_tx && !(pd0 & TD_DESC_IS_RX)); - WARN_ON((pd0 & 0x1f) != c->port_num); - } else { - WARN_ON_ONCE(1); - } - c->td_seen = 1; - } - } - if (!c->td_desc_seen) { - desc_phys = cppi41_pop_desc(cdd, c->q_comp_num); - if (desc_phys) { __iormb(); - WARN_ON(c->desc_phys != desc_phys); - c->td_desc_seen = 1; + pd0 = td->pd0; + WARN_ON((pd0 >> DESC_TYPE) != DESC_TYPE_TEARD); + WARN_ON(!c->is_tx && !(pd0 & TD_DESC_IS_RX)); + WARN_ON((pd0 & 0x1f) != c->port_num); + c->td_seen = 1; + } else if (desc_phys) { + WARN_ON_ONCE(1); } } c->td_retry--; @@ -609,7 +601,7 @@ static int cppi41_tear_down_chan(struct cppi41_channel *c) WARN_ON(!c->td_retry); if (!c->td_desc_seen) { - desc_phys = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num)); + desc_phys = cppi41_pop_desc(cdd, c->q_num); WARN_ON(!desc_phys); } @@ -674,14 +666,14 @@ static void cleanup_chans(struct cppi41_dd *cdd) } } -static int cppi41_add_chans(struct platform_device *pdev, struct cppi41_dd *cdd) +static int cppi41_add_chans(struct device *dev, struct cppi41_dd *cdd) { struct cppi41_channel *cchan; int i; int ret; u32 n_chans; - ret = of_property_read_u32(pdev->dev.of_node, "#dma-channels", + ret = of_property_read_u32(dev->of_node, "#dma-channels", &n_chans); if (ret) return ret; @@ -719,7 +711,7 @@ err: return -ENOMEM; } -static void purge_descs(struct platform_device *pdev, struct cppi41_dd *cdd) +static void purge_descs(struct device *dev, struct cppi41_dd *cdd) { unsigned int mem_decs; int i; @@ -731,7 +723,7 @@ static void purge_descs(struct platform_device *pdev, struct cppi41_dd *cdd) cppi_writel(0, cdd->qmgr_mem + QMGR_MEMBASE(i)); cppi_writel(0, cdd->qmgr_mem + QMGR_MEMCTRL(i)); - dma_free_coherent(&pdev->dev, mem_decs, cdd->cd, + dma_free_coherent(dev, mem_decs, cdd->cd, cdd->descs_phys); } } @@ -741,19 +733,19 @@ static void disable_sched(struct cppi41_dd *cdd) cppi_writel(0, cdd->sched_mem + DMA_SCHED_CTRL); } -static void deinit_cpii41(struct platform_device *pdev, struct cppi41_dd *cdd) +static void deinit_cppi41(struct device *dev, struct cppi41_dd *cdd) { disable_sched(cdd); - purge_descs(pdev, cdd); + purge_descs(dev, cdd); cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE); cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE); - dma_free_coherent(&pdev->dev, QMGR_SCRATCH_SIZE, cdd->qmgr_scratch, + dma_free_coherent(dev, QMGR_SCRATCH_SIZE, cdd->qmgr_scratch, cdd->scratch_phys); } -static int init_descs(struct platform_device *pdev, struct cppi41_dd *cdd) +static int init_descs(struct device *dev, struct cppi41_dd *cdd) { unsigned int desc_size; unsigned int mem_decs; @@ -777,7 +769,7 @@ static int init_descs(struct platform_device *pdev, struct cppi41_dd *cdd) reg |= ilog2(ALLOC_DECS_NUM) - 5; BUILD_BUG_ON(DESCS_AREAS != 1); - cdd->cd = dma_alloc_coherent(&pdev->dev, mem_decs, + cdd->cd = dma_alloc_coherent(dev, mem_decs, &cdd->descs_phys, GFP_KERNEL); if (!cdd->cd) return -ENOMEM; @@ -813,12 +805,12 @@ static void init_sched(struct cppi41_dd *cdd) cppi_writel(reg, cdd->sched_mem + DMA_SCHED_CTRL); } -static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd) +static int init_cppi41(struct device *dev, struct cppi41_dd *cdd) { int ret; BUILD_BUG_ON(QMGR_SCRATCH_SIZE > ((1 << 14) - 1)); - cdd->qmgr_scratch = dma_alloc_coherent(&pdev->dev, QMGR_SCRATCH_SIZE, + cdd->qmgr_scratch = dma_alloc_coherent(dev, QMGR_SCRATCH_SIZE, &cdd->scratch_phys, GFP_KERNEL); if (!cdd->qmgr_scratch) return -ENOMEM; @@ -827,7 +819,7 @@ static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd) cppi_writel(QMGR_SCRATCH_SIZE, cdd->qmgr_mem + QMGR_LRAM_SIZE); cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM1_BASE); - ret = init_descs(pdev, cdd); + ret = init_descs(dev, cdd); if (ret) goto err_td; @@ -835,7 +827,7 @@ static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd) init_sched(cdd); return 0; err_td: - deinit_cpii41(pdev, cdd); + deinit_cppi41(dev, cdd); return ret; } @@ -914,11 +906,11 @@ static const struct of_device_id cppi41_dma_ids[] = { }; MODULE_DEVICE_TABLE(of, cppi41_dma_ids); -static const struct cppi_glue_infos *get_glue_info(struct platform_device *pdev) +static const struct cppi_glue_infos *get_glue_info(struct device *dev) { const struct of_device_id *of_id; - of_id = of_match_node(cppi41_dma_ids, pdev->dev.of_node); + of_id = of_match_node(cppi41_dma_ids, dev->of_node); if (!of_id) return NULL; return of_id->data; @@ -927,11 +919,12 @@ static const struct cppi_glue_infos *get_glue_info(struct platform_device *pdev) static int cppi41_dma_probe(struct platform_device *pdev) { struct cppi41_dd *cdd; + struct device *dev = &pdev->dev; const struct cppi_glue_infos *glue_info; int irq; int ret; - glue_info = get_glue_info(pdev); + glue_info = get_glue_info(dev); if (!glue_info) return -EINVAL; @@ -946,14 +939,14 @@ static int cppi41_dma_probe(struct platform_device *pdev) cdd->ddev.device_issue_pending = cppi41_dma_issue_pending; cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg; cdd->ddev.device_control = cppi41_dma_control; - cdd->ddev.dev = &pdev->dev; + cdd->ddev.dev = dev; INIT_LIST_HEAD(&cdd->ddev.channels); cpp41_dma_info.dma_cap = cdd->ddev.cap_mask; - cdd->usbss_mem = of_iomap(pdev->dev.of_node, 0); - cdd->ctrl_mem = of_iomap(pdev->dev.of_node, 1); - cdd->sched_mem = of_iomap(pdev->dev.of_node, 2); - cdd->qmgr_mem = of_iomap(pdev->dev.of_node, 3); + cdd->usbss_mem = of_iomap(dev->of_node, 0); + cdd->ctrl_mem = of_iomap(dev->of_node, 1); + cdd->sched_mem = of_iomap(dev->of_node, 2); + cdd->qmgr_mem = of_iomap(dev->of_node, 3); if (!cdd->usbss_mem || !cdd->ctrl_mem || !cdd->sched_mem || !cdd->qmgr_mem) { @@ -961,31 +954,31 @@ static int cppi41_dma_probe(struct platform_device *pdev) goto err_remap; } - pm_runtime_enable(&pdev->dev); - ret = pm_runtime_get_sync(&pdev->dev); - if (ret) + pm_runtime_enable(dev); + ret = pm_runtime_get_sync(dev); + if (ret < 0) goto err_get_sync; cdd->queues_rx = glue_info->queues_rx; cdd->queues_tx = glue_info->queues_tx; cdd->td_queue = glue_info->td_queue; - ret = init_cppi41(pdev, cdd); + ret = init_cppi41(dev, cdd); if (ret) goto err_init_cppi; - ret = cppi41_add_chans(pdev, cdd); + ret = cppi41_add_chans(dev, cdd); if (ret) goto err_chans; - irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + irq = irq_of_parse_and_map(dev->of_node, 0); if (!irq) goto err_irq; cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER); ret = request_irq(irq, glue_info->isr, IRQF_SHARED, - dev_name(&pdev->dev), cdd); + dev_name(dev), cdd); if (ret) goto err_irq; cdd->irq = irq; @@ -994,7 +987,7 @@ static int cppi41_dma_probe(struct platform_device *pdev) if (ret) goto err_dma_reg; - ret = of_dma_controller_register(pdev->dev.of_node, + ret = of_dma_controller_register(dev->of_node, cppi41_dma_xlate, &cpp41_dma_info); if (ret) goto err_of; @@ -1009,11 +1002,11 @@ err_irq: cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR); cleanup_chans(cdd); err_chans: - deinit_cpii41(pdev, cdd); + deinit_cppi41(dev, cdd); err_init_cppi: - pm_runtime_put(&pdev->dev); + pm_runtime_put(dev); err_get_sync: - pm_runtime_disable(&pdev->dev); + pm_runtime_disable(dev); iounmap(cdd->usbss_mem); iounmap(cdd->ctrl_mem); iounmap(cdd->sched_mem); @@ -1033,7 +1026,7 @@ static int cppi41_dma_remove(struct platform_device *pdev) cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR); free_irq(cdd->irq, cdd); cleanup_chans(cdd); - deinit_cpii41(pdev, cdd); + deinit_cppi41(&pdev->dev, cdd); iounmap(cdd->usbss_mem); iounmap(cdd->ctrl_mem); iounmap(cdd->sched_mem); @@ -1044,12 +1037,53 @@ static int cppi41_dma_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int cppi41_suspend(struct device *dev) +{ + struct cppi41_dd *cdd = dev_get_drvdata(dev); + + cdd->dma_tdfdq = cppi_readl(cdd->ctrl_mem + DMA_TDFDQ); + cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR); + disable_sched(cdd); + + return 0; +} + +static int cppi41_resume(struct device *dev) +{ + struct cppi41_dd *cdd = dev_get_drvdata(dev); + struct cppi41_channel *c; + int i; + + for (i = 0; i < DESCS_AREAS; i++) + cppi_writel(cdd->descs_phys, cdd->qmgr_mem + QMGR_MEMBASE(i)); + + list_for_each_entry(c, &cdd->ddev.channels, chan.device_node) + if (!c->is_tx) + cppi_writel(c->q_num, c->gcr_reg + RXHPCRA0); + + init_sched(cdd); + + cppi_writel(cdd->dma_tdfdq, cdd->ctrl_mem + DMA_TDFDQ); + cppi_writel(cdd->scratch_phys, cdd->qmgr_mem + QMGR_LRAM0_BASE); + cppi_writel(QMGR_SCRATCH_SIZE, cdd->qmgr_mem + QMGR_LRAM_SIZE); + cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM1_BASE); + + cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(cppi41_pm_ops, cppi41_suspend, cppi41_resume); + static struct platform_driver cpp41_dma_driver = { .probe = cppi41_dma_probe, .remove = cppi41_dma_remove, .driver = { .name = "cppi41-dma-engine", .owner = THIS_MODULE, + .pm = &cppi41_pm_ops, .of_match_table = of_match_ptr(cppi41_dma_ids), }, }; diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c index b0c0c8268d42..94c380f07538 100644 --- a/drivers/dma/dma-jz4740.c +++ b/drivers/dma/dma-jz4740.c @@ -491,7 +491,7 @@ static enum dma_status jz4740_dma_tx_status(struct dma_chan *c, unsigned long flags; status = dma_cookie_status(c, cookie, state); - if (status == DMA_SUCCESS || !state) + if (status == DMA_COMPLETE || !state) return status; spin_lock_irqsave(&chan->vchan.lock, flags); diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 9162ac80c18f..ea806bdc12ef 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -65,6 +65,7 @@ #include <linux/acpi.h> #include <linux/acpi_dma.h> #include <linux/of_dma.h> +#include <linux/mempool.h> static DEFINE_MUTEX(dma_list_mutex); static DEFINE_IDR(dma_idr); @@ -901,98 +902,132 @@ void dma_async_device_unregister(struct dma_device *device) } EXPORT_SYMBOL(dma_async_device_unregister); -/** - * dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses - * @chan: DMA channel to offload copy to - * @dest: destination address (virtual) - * @src: source address (virtual) - * @len: length - * - * Both @dest and @src must be mappable to a bus address according to the - * DMA mapping API rules for streaming mappings. - * Both @dest and @src must stay memory resident (kernel memory or locked - * user space pages). - */ -dma_cookie_t -dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest, - void *src, size_t len) -{ - struct dma_device *dev = chan->device; - struct dma_async_tx_descriptor *tx; - dma_addr_t dma_dest, dma_src; - dma_cookie_t cookie; - unsigned long flags; +struct dmaengine_unmap_pool { + struct kmem_cache *cache; + const char *name; + mempool_t *pool; + size_t size; +}; - dma_src = dma_map_single(dev->dev, src, len, DMA_TO_DEVICE); - dma_dest = dma_map_single(dev->dev, dest, len, DMA_FROM_DEVICE); - flags = DMA_CTRL_ACK | - DMA_COMPL_SRC_UNMAP_SINGLE | - DMA_COMPL_DEST_UNMAP_SINGLE; - tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags); +#define __UNMAP_POOL(x) { .size = x, .name = "dmaengine-unmap-" __stringify(x) } +static struct dmaengine_unmap_pool unmap_pool[] = { + __UNMAP_POOL(2), + #if IS_ENABLED(CONFIG_ASYNC_TX_DMA) + __UNMAP_POOL(16), + __UNMAP_POOL(128), + __UNMAP_POOL(256), + #endif +}; - if (!tx) { - dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE); - dma_unmap_single(dev->dev, dma_dest, len, DMA_FROM_DEVICE); - return -ENOMEM; +static struct dmaengine_unmap_pool *__get_unmap_pool(int nr) +{ + int order = get_count_order(nr); + + switch (order) { + case 0 ... 1: + return &unmap_pool[0]; + case 2 ... 4: + return &unmap_pool[1]; + case 5 ... 7: + return &unmap_pool[2]; + case 8: + return &unmap_pool[3]; + default: + BUG(); + return NULL; } +} - tx->callback = NULL; - cookie = tx->tx_submit(tx); +static void dmaengine_unmap(struct kref *kref) +{ + struct dmaengine_unmap_data *unmap = container_of(kref, typeof(*unmap), kref); + struct device *dev = unmap->dev; + int cnt, i; + + cnt = unmap->to_cnt; + for (i = 0; i < cnt; i++) + dma_unmap_page(dev, unmap->addr[i], unmap->len, + DMA_TO_DEVICE); + cnt += unmap->from_cnt; + for (; i < cnt; i++) + dma_unmap_page(dev, unmap->addr[i], unmap->len, + DMA_FROM_DEVICE); + cnt += unmap->bidi_cnt; + for (; i < cnt; i++) { + if (unmap->addr[i] == 0) + continue; + dma_unmap_page(dev, unmap->addr[i], unmap->len, + DMA_BIDIRECTIONAL); + } + mempool_free(unmap, __get_unmap_pool(cnt)->pool); +} - preempt_disable(); - __this_cpu_add(chan->local->bytes_transferred, len); - __this_cpu_inc(chan->local->memcpy_count); - preempt_enable(); +void dmaengine_unmap_put(struct dmaengine_unmap_data *unmap) +{ + if (unmap) + kref_put(&unmap->kref, dmaengine_unmap); +} +EXPORT_SYMBOL_GPL(dmaengine_unmap_put); - return cookie; +static void dmaengine_destroy_unmap_pool(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(unmap_pool); i++) { + struct dmaengine_unmap_pool *p = &unmap_pool[i]; + + if (p->pool) + mempool_destroy(p->pool); + p->pool = NULL; + if (p->cache) + kmem_cache_destroy(p->cache); + p->cache = NULL; + } } -EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf); -/** - * dma_async_memcpy_buf_to_pg - offloaded copy from address to page - * @chan: DMA channel to offload copy to - * @page: destination page - * @offset: offset in page to copy to - * @kdata: source address (virtual) - * @len: length - * - * Both @page/@offset and @kdata must be mappable to a bus address according - * to the DMA mapping API rules for streaming mappings. - * Both @page/@offset and @kdata must stay memory resident (kernel memory or - * locked user space pages) - */ -dma_cookie_t -dma_async_memcpy_buf_to_pg(struct dma_chan *chan, struct page *page, - unsigned int offset, void *kdata, size_t len) +static int __init dmaengine_init_unmap_pool(void) { - struct dma_device *dev = chan->device; - struct dma_async_tx_descriptor *tx; - dma_addr_t dma_dest, dma_src; - dma_cookie_t cookie; - unsigned long flags; + int i; - dma_src = dma_map_single(dev->dev, kdata, len, DMA_TO_DEVICE); - dma_dest = dma_map_page(dev->dev, page, offset, len, DMA_FROM_DEVICE); - flags = DMA_CTRL_ACK | DMA_COMPL_SRC_UNMAP_SINGLE; - tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags); + for (i = 0; i < ARRAY_SIZE(unmap_pool); i++) { + struct dmaengine_unmap_pool *p = &unmap_pool[i]; + size_t size; - if (!tx) { - dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE); - dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE); - return -ENOMEM; + size = sizeof(struct dmaengine_unmap_data) + + sizeof(dma_addr_t) * p->size; + + p->cache = kmem_cache_create(p->name, size, 0, + SLAB_HWCACHE_ALIGN, NULL); + if (!p->cache) + break; + p->pool = mempool_create_slab_pool(1, p->cache); + if (!p->pool) + break; } - tx->callback = NULL; - cookie = tx->tx_submit(tx); + if (i == ARRAY_SIZE(unmap_pool)) + return 0; - preempt_disable(); - __this_cpu_add(chan->local->bytes_transferred, len); - __this_cpu_inc(chan->local->memcpy_count); - preempt_enable(); + dmaengine_destroy_unmap_pool(); + return -ENOMEM; +} - return cookie; +struct dmaengine_unmap_data * +dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags) +{ + struct dmaengine_unmap_data *unmap; + + unmap = mempool_alloc(__get_unmap_pool(nr)->pool, flags); + if (!unmap) + return NULL; + + memset(unmap, 0, sizeof(*unmap)); + kref_init(&unmap->kref); + unmap->dev = dev; + + return unmap; } -EXPORT_SYMBOL(dma_async_memcpy_buf_to_pg); +EXPORT_SYMBOL(dmaengine_get_unmap_data); /** * dma_async_memcpy_pg_to_pg - offloaded copy from page to page @@ -1015,24 +1050,33 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg, { struct dma_device *dev = chan->device; struct dma_async_tx_descriptor *tx; - dma_addr_t dma_dest, dma_src; + struct dmaengine_unmap_data *unmap; dma_cookie_t cookie; unsigned long flags; - dma_src = dma_map_page(dev->dev, src_pg, src_off, len, DMA_TO_DEVICE); - dma_dest = dma_map_page(dev->dev, dest_pg, dest_off, len, - DMA_FROM_DEVICE); + unmap = dmaengine_get_unmap_data(dev->dev, 2, GFP_NOIO); + if (!unmap) + return -ENOMEM; + + unmap->to_cnt = 1; + unmap->from_cnt = 1; + unmap->addr[0] = dma_map_page(dev->dev, src_pg, src_off, len, + DMA_TO_DEVICE); + unmap->addr[1] = dma_map_page(dev->dev, dest_pg, dest_off, len, + DMA_FROM_DEVICE); + unmap->len = len; flags = DMA_CTRL_ACK; - tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags); + tx = dev->device_prep_dma_memcpy(chan, unmap->addr[1], unmap->addr[0], + len, flags); if (!tx) { - dma_unmap_page(dev->dev, dma_src, len, DMA_TO_DEVICE); - dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE); + dmaengine_unmap_put(unmap); return -ENOMEM; } - tx->callback = NULL; + dma_set_unmap(tx, unmap); cookie = tx->tx_submit(tx); + dmaengine_unmap_put(unmap); preempt_disable(); __this_cpu_add(chan->local->bytes_transferred, len); @@ -1043,6 +1087,52 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg, } EXPORT_SYMBOL(dma_async_memcpy_pg_to_pg); +/** + * dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses + * @chan: DMA channel to offload copy to + * @dest: destination address (virtual) + * @src: source address (virtual) + * @len: length + * + * Both @dest and @src must be mappable to a bus address according to the + * DMA mapping API rules for streaming mappings. + * Both @dest and @src must stay memory resident (kernel memory or locked + * user space pages). + */ +dma_cookie_t +dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest, + void *src, size_t len) +{ + return dma_async_memcpy_pg_to_pg(chan, virt_to_page(dest), + (unsigned long) dest & ~PAGE_MASK, + virt_to_page(src), + (unsigned long) src & ~PAGE_MASK, len); +} +EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf); + +/** + * dma_async_memcpy_buf_to_pg - offloaded copy from address to page + * @chan: DMA channel to offload copy to + * @page: destination page + * @offset: offset in page to copy to + * @kdata: source address (virtual) + * @len: length + * + * Both @page/@offset and @kdata must be mappable to a bus address according + * to the DMA mapping API rules for streaming mappings. + * Both @page/@offset and @kdata must stay memory resident (kernel memory or + * locked user space pages) + */ +dma_cookie_t +dma_async_memcpy_buf_to_pg(struct dma_chan *chan, struct page *page, + unsigned int offset, void *kdata, size_t len) +{ + return dma_async_memcpy_pg_to_pg(chan, page, offset, + virt_to_page(kdata), + (unsigned long) kdata & ~PAGE_MASK, len); +} +EXPORT_SYMBOL(dma_async_memcpy_buf_to_pg); + void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx, struct dma_chan *chan) { @@ -1062,7 +1152,7 @@ dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx) unsigned long dma_sync_wait_timeout = jiffies + msecs_to_jiffies(5000); if (!tx) - return DMA_SUCCESS; + return DMA_COMPLETE; while (tx->cookie == -EBUSY) { if (time_after_eq(jiffies, dma_sync_wait_timeout)) { @@ -1116,6 +1206,10 @@ EXPORT_SYMBOL_GPL(dma_run_dependencies); static int __init dma_bus_init(void) { + int err = dmaengine_init_unmap_pool(); + + if (err) + return err; return class_register(&dma_devclass); } arch_initcall(dma_bus_init); diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 92f796cdc6ab..20f9a3aaf926 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -8,6 +8,8 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> @@ -19,10 +21,6 @@ #include <linux/random.h> #include <linux/slab.h> #include <linux/wait.h> -#include <linux/ctype.h> -#include <linux/debugfs.h> -#include <linux/uaccess.h> -#include <linux/seq_file.h> static unsigned int test_buf_size = 16384; module_param(test_buf_size, uint, S_IRUGO | S_IWUSR); @@ -68,92 +66,13 @@ module_param(timeout, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), " "Pass -1 for infinite timeout"); -/* Maximum amount of mismatched bytes in buffer to print */ -#define MAX_ERROR_COUNT 32 - -/* - * Initialization patterns. All bytes in the source buffer has bit 7 - * set, all bytes in the destination buffer has bit 7 cleared. - * - * Bit 6 is set for all bytes which are to be copied by the DMA - * engine. Bit 5 is set for all bytes which are to be overwritten by - * the DMA engine. - * - * The remaining bits are the inverse of a counter which increments by - * one for each byte address. - */ -#define PATTERN_SRC 0x80 -#define PATTERN_DST 0x00 -#define PATTERN_COPY 0x40 -#define PATTERN_OVERWRITE 0x20 -#define PATTERN_COUNT_MASK 0x1f - -enum dmatest_error_type { - DMATEST_ET_OK, - DMATEST_ET_MAP_SRC, - DMATEST_ET_MAP_DST, - DMATEST_ET_PREP, - DMATEST_ET_SUBMIT, - DMATEST_ET_TIMEOUT, - DMATEST_ET_DMA_ERROR, - DMATEST_ET_DMA_IN_PROGRESS, - DMATEST_ET_VERIFY, - DMATEST_ET_VERIFY_BUF, -}; - -struct dmatest_verify_buffer { - unsigned int index; - u8 expected; - u8 actual; -}; - -struct dmatest_verify_result { - unsigned int error_count; - struct dmatest_verify_buffer data[MAX_ERROR_COUNT]; - u8 pattern; - bool is_srcbuf; -}; - -struct dmatest_thread_result { - struct list_head node; - unsigned int n; - unsigned int src_off; - unsigned int dst_off; - unsigned int len; - enum dmatest_error_type type; - union { - unsigned long data; - dma_cookie_t cookie; - enum dma_status status; - int error; - struct dmatest_verify_result *vr; - }; -}; - -struct dmatest_result { - struct list_head node; - char *name; - struct list_head results; -}; - -struct dmatest_info; - -struct dmatest_thread { - struct list_head node; - struct dmatest_info *info; - struct task_struct *task; - struct dma_chan *chan; - u8 **srcs; - u8 **dsts; - enum dma_transaction_type type; - bool done; -}; +static bool noverify; +module_param(noverify, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(noverify, "Disable random data setup and verification"); -struct dmatest_chan { - struct list_head node; - struct dma_chan *chan; - struct list_head threads; -}; +static bool verbose; +module_param(verbose, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(verbose, "Enable \"success\" result messages (default: off)"); /** * struct dmatest_params - test parameters. @@ -177,6 +96,7 @@ struct dmatest_params { unsigned int xor_sources; unsigned int pq_sources; int timeout; + bool noverify; }; /** @@ -184,7 +104,7 @@ struct dmatest_params { * @params: test parameters * @lock: access protection to the fields of this structure */ -struct dmatest_info { +static struct dmatest_info { /* Test parameters */ struct dmatest_params params; @@ -192,16 +112,95 @@ struct dmatest_info { struct list_head channels; unsigned int nr_channels; struct mutex lock; + bool did_init; +} test_info = { + .channels = LIST_HEAD_INIT(test_info.channels), + .lock = __MUTEX_INITIALIZER(test_info.lock), +}; + +static int dmatest_run_set(const char *val, const struct kernel_param *kp); +static int dmatest_run_get(char *val, const struct kernel_param *kp); +static struct kernel_param_ops run_ops = { + .set = dmatest_run_set, + .get = dmatest_run_get, +}; +static bool dmatest_run; +module_param_cb(run, &run_ops, &dmatest_run, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(run, "Run the test (default: false)"); + +/* Maximum amount of mismatched bytes in buffer to print */ +#define MAX_ERROR_COUNT 32 + +/* + * Initialization patterns. All bytes in the source buffer has bit 7 + * set, all bytes in the destination buffer has bit 7 cleared. + * + * Bit 6 is set for all bytes which are to be copied by the DMA + * engine. Bit 5 is set for all bytes which are to be overwritten by + * the DMA engine. + * + * The remaining bits are the inverse of a counter which increments by + * one for each byte address. + */ +#define PATTERN_SRC 0x80 +#define PATTERN_DST 0x00 +#define PATTERN_COPY 0x40 +#define PATTERN_OVERWRITE 0x20 +#define PATTERN_COUNT_MASK 0x1f - /* debugfs related stuff */ - struct dentry *root; +struct dmatest_thread { + struct list_head node; + struct dmatest_info *info; + struct task_struct *task; + struct dma_chan *chan; + u8 **srcs; + u8 **dsts; + enum dma_transaction_type type; + bool done; +}; - /* Test results */ - struct list_head results; - struct mutex results_lock; +struct dmatest_chan { + struct list_head node; + struct dma_chan *chan; + struct list_head threads; }; -static struct dmatest_info test_info; +static DECLARE_WAIT_QUEUE_HEAD(thread_wait); +static bool wait; + +static bool is_threaded_test_run(struct dmatest_info *info) +{ + struct dmatest_chan *dtc; + + list_for_each_entry(dtc, &info->channels, node) { + struct dmatest_thread *thread; + + list_for_each_entry(thread, &dtc->threads, node) { + if (!thread->done) + return true; + } + } + + return false; +} + +static int dmatest_wait_get(char *val, const struct kernel_param *kp) +{ + struct dmatest_info *info = &test_info; + struct dmatest_params *params = &info->params; + + if (params->iterations) + wait_event(thread_wait, !is_threaded_test_run(info)); + wait = true; + return param_get_bool(val, kp); +} + +static struct kernel_param_ops wait_ops = { + .get = dmatest_wait_get, + .set = param_set_bool, +}; +module_param_cb(wait, &wait_ops, &wait, S_IRUGO); +MODULE_PARM_DESC(wait, "Wait for tests to complete (default: false)"); static bool dmatest_match_channel(struct dmatest_params *params, struct dma_chan *chan) @@ -223,7 +222,7 @@ static unsigned long dmatest_random(void) { unsigned long buf; - get_random_bytes(&buf, sizeof(buf)); + prandom_bytes(&buf, sizeof(buf)); return buf; } @@ -262,9 +261,31 @@ static void dmatest_init_dsts(u8 **bufs, unsigned int start, unsigned int len, } } -static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs, - unsigned int start, unsigned int end, unsigned int counter, - u8 pattern, bool is_srcbuf) +static void dmatest_mismatch(u8 actual, u8 pattern, unsigned int index, + unsigned int counter, bool is_srcbuf) +{ + u8 diff = actual ^ pattern; + u8 expected = pattern | (~counter & PATTERN_COUNT_MASK); + const char *thread_name = current->comm; + + if (is_srcbuf) + pr_warn("%s: srcbuf[0x%x] overwritten! Expected %02x, got %02x\n", + thread_name, index, expected, actual); + else if ((pattern & PATTERN_COPY) + && (diff & (PATTERN_COPY | PATTERN_OVERWRITE))) + pr_warn("%s: dstbuf[0x%x] not copied! Expected %02x, got %02x\n", + thread_name, index, expected, actual); + else if (diff & PATTERN_SRC) + pr_warn("%s: dstbuf[0x%x] was copied! Expected %02x, got %02x\n", + thread_name, index, expected, actual); + else + pr_warn("%s: dstbuf[0x%x] mismatch! Expected %02x, got %02x\n", + thread_name, index, expected, actual); +} + +static unsigned int dmatest_verify(u8 **bufs, unsigned int start, + unsigned int end, unsigned int counter, u8 pattern, + bool is_srcbuf) { unsigned int i; unsigned int error_count = 0; @@ -272,7 +293,6 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs, u8 expected; u8 *buf; unsigned int counter_orig = counter; - struct dmatest_verify_buffer *vb; for (; (buf = *bufs); bufs++) { counter = counter_orig; @@ -280,12 +300,9 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs, actual = buf[i]; expected = pattern | (~counter & PATTERN_COUNT_MASK); if (actual != expected) { - if (error_count < MAX_ERROR_COUNT && vr) { - vb = &vr->data[error_count]; - vb->index = i; - vb->expected = expected; - vb->actual = actual; - } + if (error_count < MAX_ERROR_COUNT) + dmatest_mismatch(actual, pattern, i, + counter, is_srcbuf); error_count++; } counter++; @@ -293,7 +310,7 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs, } if (error_count > MAX_ERROR_COUNT) - pr_warning("%s: %u errors suppressed\n", + pr_warn("%s: %u errors suppressed\n", current->comm, error_count - MAX_ERROR_COUNT); return error_count; @@ -313,20 +330,6 @@ static void dmatest_callback(void *arg) wake_up_all(done->wait); } -static inline void unmap_src(struct device *dev, dma_addr_t *addr, size_t len, - unsigned int count) -{ - while (count--) - dma_unmap_single(dev, addr[count], len, DMA_TO_DEVICE); -} - -static inline void unmap_dst(struct device *dev, dma_addr_t *addr, size_t len, - unsigned int count) -{ - while (count--) - dma_unmap_single(dev, addr[count], len, DMA_BIDIRECTIONAL); -} - static unsigned int min_odd(unsigned int x, unsigned int y) { unsigned int val = min(x, y); @@ -334,172 +337,49 @@ static unsigned int min_odd(unsigned int x, unsigned int y) return val % 2 ? val : val - 1; } -static char *verify_result_get_one(struct dmatest_verify_result *vr, - unsigned int i) +static void result(const char *err, unsigned int n, unsigned int src_off, + unsigned int dst_off, unsigned int len, unsigned long data) { - struct dmatest_verify_buffer *vb = &vr->data[i]; - u8 diff = vb->actual ^ vr->pattern; - static char buf[512]; - char *msg; - - if (vr->is_srcbuf) - msg = "srcbuf overwritten!"; - else if ((vr->pattern & PATTERN_COPY) - && (diff & (PATTERN_COPY | PATTERN_OVERWRITE))) - msg = "dstbuf not copied!"; - else if (diff & PATTERN_SRC) - msg = "dstbuf was copied!"; - else - msg = "dstbuf mismatch!"; - - snprintf(buf, sizeof(buf) - 1, "%s [0x%x] Expected %02x, got %02x", msg, - vb->index, vb->expected, vb->actual); - - return buf; + pr_info("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%lu)", + current->comm, n, err, src_off, dst_off, len, data); } -static char *thread_result_get(const char *name, - struct dmatest_thread_result *tr) +static void dbg_result(const char *err, unsigned int n, unsigned int src_off, + unsigned int dst_off, unsigned int len, + unsigned long data) { - static const char * const messages[] = { - [DMATEST_ET_OK] = "No errors", - [DMATEST_ET_MAP_SRC] = "src mapping error", - [DMATEST_ET_MAP_DST] = "dst mapping error", - [DMATEST_ET_PREP] = "prep error", - [DMATEST_ET_SUBMIT] = "submit error", - [DMATEST_ET_TIMEOUT] = "test timed out", - [DMATEST_ET_DMA_ERROR] = - "got completion callback (DMA_ERROR)", - [DMATEST_ET_DMA_IN_PROGRESS] = - "got completion callback (DMA_IN_PROGRESS)", - [DMATEST_ET_VERIFY] = "errors", - [DMATEST_ET_VERIFY_BUF] = "verify errors", - }; - static char buf[512]; - - snprintf(buf, sizeof(buf) - 1, - "%s: #%u: %s with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)", - name, tr->n, messages[tr->type], tr->src_off, tr->dst_off, - tr->len, tr->data); - - return buf; + pr_debug("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%lu)", + current->comm, n, err, src_off, dst_off, len, data); } -static int thread_result_add(struct dmatest_info *info, - struct dmatest_result *r, enum dmatest_error_type type, - unsigned int n, unsigned int src_off, unsigned int dst_off, - unsigned int len, unsigned long data) -{ - struct dmatest_thread_result *tr; - - tr = kzalloc(sizeof(*tr), GFP_KERNEL); - if (!tr) - return -ENOMEM; - - tr->type = type; - tr->n = n; - tr->src_off = src_off; - tr->dst_off = dst_off; - tr->len = len; - tr->data = data; +#define verbose_result(err, n, src_off, dst_off, len, data) ({ \ + if (verbose) \ + result(err, n, src_off, dst_off, len, data); \ + else \ + dbg_result(err, n, src_off, dst_off, len, data); \ +}) - mutex_lock(&info->results_lock); - list_add_tail(&tr->node, &r->results); - mutex_unlock(&info->results_lock); - - if (tr->type == DMATEST_ET_OK) - pr_debug("%s\n", thread_result_get(r->name, tr)); - else - pr_warn("%s\n", thread_result_get(r->name, tr)); - - return 0; -} - -static unsigned int verify_result_add(struct dmatest_info *info, - struct dmatest_result *r, unsigned int n, - unsigned int src_off, unsigned int dst_off, unsigned int len, - u8 **bufs, int whence, unsigned int counter, u8 pattern, - bool is_srcbuf) +static unsigned long long dmatest_persec(s64 runtime, unsigned int val) { - struct dmatest_verify_result *vr; - unsigned int error_count; - unsigned int buf_off = is_srcbuf ? src_off : dst_off; - unsigned int start, end; - - if (whence < 0) { - start = 0; - end = buf_off; - } else if (whence > 0) { - start = buf_off + len; - end = info->params.buf_size; - } else { - start = buf_off; - end = buf_off + len; - } + unsigned long long per_sec = 1000000; - vr = kmalloc(sizeof(*vr), GFP_KERNEL); - if (!vr) { - pr_warn("dmatest: No memory to store verify result\n"); - return dmatest_verify(NULL, bufs, start, end, counter, pattern, - is_srcbuf); - } - - vr->pattern = pattern; - vr->is_srcbuf = is_srcbuf; - - error_count = dmatest_verify(vr, bufs, start, end, counter, pattern, - is_srcbuf); - if (error_count) { - vr->error_count = error_count; - thread_result_add(info, r, DMATEST_ET_VERIFY_BUF, n, src_off, - dst_off, len, (unsigned long)vr); - return error_count; - } - - kfree(vr); - return 0; -} - -static void result_free(struct dmatest_info *info, const char *name) -{ - struct dmatest_result *r, *_r; - - mutex_lock(&info->results_lock); - list_for_each_entry_safe(r, _r, &info->results, node) { - struct dmatest_thread_result *tr, *_tr; - - if (name && strcmp(r->name, name)) - continue; - - list_for_each_entry_safe(tr, _tr, &r->results, node) { - if (tr->type == DMATEST_ET_VERIFY_BUF) - kfree(tr->vr); - list_del(&tr->node); - kfree(tr); - } + if (runtime <= 0) + return 0; - kfree(r->name); - list_del(&r->node); - kfree(r); + /* drop precision until runtime is 32-bits */ + while (runtime > UINT_MAX) { + runtime >>= 1; + per_sec <<= 1; } - mutex_unlock(&info->results_lock); + per_sec *= val; + do_div(per_sec, runtime); + return per_sec; } -static struct dmatest_result *result_init(struct dmatest_info *info, - const char *name) +static unsigned long long dmatest_KBs(s64 runtime, unsigned long long len) { - struct dmatest_result *r; - - r = kzalloc(sizeof(*r), GFP_KERNEL); - if (r) { - r->name = kstrdup(name, GFP_KERNEL); - INIT_LIST_HEAD(&r->results); - mutex_lock(&info->results_lock); - list_add_tail(&r->node, &info->results); - mutex_unlock(&info->results_lock); - } - return r; + return dmatest_persec(runtime, len >> 10); } /* @@ -525,7 +405,6 @@ static int dmatest_func(void *data) struct dmatest_params *params; struct dma_chan *chan; struct dma_device *dev; - const char *thread_name; unsigned int src_off, dst_off, len; unsigned int error_count; unsigned int failed_tests = 0; @@ -538,9 +417,10 @@ static int dmatest_func(void *data) int src_cnt; int dst_cnt; int i; - struct dmatest_result *result; + ktime_t ktime; + s64 runtime = 0; + unsigned long long total_len = 0; - thread_name = current->comm; set_freezable(); ret = -ENOMEM; @@ -570,10 +450,6 @@ static int dmatest_func(void *data) } else goto err_thread_type; - result = result_init(info, thread_name); - if (!result) - goto err_srcs; - thread->srcs = kcalloc(src_cnt+1, sizeof(u8 *), GFP_KERNEL); if (!thread->srcs) goto err_srcs; @@ -597,17 +473,17 @@ static int dmatest_func(void *data) set_user_nice(current, 10); /* - * src buffers are freed by the DMAEngine code with dma_unmap_single() - * dst buffers are freed by ourselves below + * src and dst buffers are freed by ourselves below */ - flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT - | DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SRC_UNMAP_SINGLE; + flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; + ktime = ktime_get(); while (!kthread_should_stop() && !(params->iterations && total_tests >= params->iterations)) { struct dma_async_tx_descriptor *tx = NULL; - dma_addr_t dma_srcs[src_cnt]; - dma_addr_t dma_dsts[dst_cnt]; + struct dmaengine_unmap_data *um; + dma_addr_t srcs[src_cnt]; + dma_addr_t *dsts; u8 align = 0; total_tests++; @@ -626,81 +502,103 @@ static int dmatest_func(void *data) break; } - len = dmatest_random() % params->buf_size + 1; + if (params->noverify) { + len = params->buf_size; + src_off = 0; + dst_off = 0; + } else { + len = dmatest_random() % params->buf_size + 1; + len = (len >> align) << align; + if (!len) + len = 1 << align; + src_off = dmatest_random() % (params->buf_size - len + 1); + dst_off = dmatest_random() % (params->buf_size - len + 1); + + src_off = (src_off >> align) << align; + dst_off = (dst_off >> align) << align; + + dmatest_init_srcs(thread->srcs, src_off, len, + params->buf_size); + dmatest_init_dsts(thread->dsts, dst_off, len, + params->buf_size); + } + len = (len >> align) << align; if (!len) len = 1 << align; - src_off = dmatest_random() % (params->buf_size - len + 1); - dst_off = dmatest_random() % (params->buf_size - len + 1); + total_len += len; - src_off = (src_off >> align) << align; - dst_off = (dst_off >> align) << align; - - dmatest_init_srcs(thread->srcs, src_off, len, params->buf_size); - dmatest_init_dsts(thread->dsts, dst_off, len, params->buf_size); + um = dmaengine_get_unmap_data(dev->dev, src_cnt+dst_cnt, + GFP_KERNEL); + if (!um) { + failed_tests++; + result("unmap data NULL", total_tests, + src_off, dst_off, len, ret); + continue; + } + um->len = params->buf_size; for (i = 0; i < src_cnt; i++) { - u8 *buf = thread->srcs[i] + src_off; - - dma_srcs[i] = dma_map_single(dev->dev, buf, len, - DMA_TO_DEVICE); - ret = dma_mapping_error(dev->dev, dma_srcs[i]); + unsigned long buf = (unsigned long) thread->srcs[i]; + struct page *pg = virt_to_page(buf); + unsigned pg_off = buf & ~PAGE_MASK; + + um->addr[i] = dma_map_page(dev->dev, pg, pg_off, + um->len, DMA_TO_DEVICE); + srcs[i] = um->addr[i] + src_off; + ret = dma_mapping_error(dev->dev, um->addr[i]); if (ret) { - unmap_src(dev->dev, dma_srcs, len, i); - thread_result_add(info, result, - DMATEST_ET_MAP_SRC, - total_tests, src_off, dst_off, - len, ret); + dmaengine_unmap_put(um); + result("src mapping error", total_tests, + src_off, dst_off, len, ret); failed_tests++; continue; } + um->to_cnt++; } /* map with DMA_BIDIRECTIONAL to force writeback/invalidate */ + dsts = &um->addr[src_cnt]; for (i = 0; i < dst_cnt; i++) { - dma_dsts[i] = dma_map_single(dev->dev, thread->dsts[i], - params->buf_size, - DMA_BIDIRECTIONAL); - ret = dma_mapping_error(dev->dev, dma_dsts[i]); + unsigned long buf = (unsigned long) thread->dsts[i]; + struct page *pg = virt_to_page(buf); + unsigned pg_off = buf & ~PAGE_MASK; + + dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len, + DMA_BIDIRECTIONAL); + ret = dma_mapping_error(dev->dev, dsts[i]); if (ret) { - unmap_src(dev->dev, dma_srcs, len, src_cnt); - unmap_dst(dev->dev, dma_dsts, params->buf_size, - i); - thread_result_add(info, result, - DMATEST_ET_MAP_DST, - total_tests, src_off, dst_off, - len, ret); + dmaengine_unmap_put(um); + result("dst mapping error", total_tests, + src_off, dst_off, len, ret); failed_tests++; continue; } + um->bidi_cnt++; } if (thread->type == DMA_MEMCPY) tx = dev->device_prep_dma_memcpy(chan, - dma_dsts[0] + dst_off, - dma_srcs[0], len, - flags); + dsts[0] + dst_off, + srcs[0], len, flags); else if (thread->type == DMA_XOR) tx = dev->device_prep_dma_xor(chan, - dma_dsts[0] + dst_off, - dma_srcs, src_cnt, + dsts[0] + dst_off, + srcs, src_cnt, len, flags); else if (thread->type == DMA_PQ) { dma_addr_t dma_pq[dst_cnt]; for (i = 0; i < dst_cnt; i++) - dma_pq[i] = dma_dsts[i] + dst_off; - tx = dev->device_prep_dma_pq(chan, dma_pq, dma_srcs, + dma_pq[i] = dsts[i] + dst_off; + tx = dev->device_prep_dma_pq(chan, dma_pq, srcs, src_cnt, pq_coefs, len, flags); } if (!tx) { - unmap_src(dev->dev, dma_srcs, len, src_cnt); - unmap_dst(dev->dev, dma_dsts, params->buf_size, - dst_cnt); - thread_result_add(info, result, DMATEST_ET_PREP, - total_tests, src_off, dst_off, - len, 0); + dmaengine_unmap_put(um); + result("prep error", total_tests, src_off, + dst_off, len, ret); msleep(100); failed_tests++; continue; @@ -712,9 +610,9 @@ static int dmatest_func(void *data) cookie = tx->tx_submit(tx); if (dma_submit_error(cookie)) { - thread_result_add(info, result, DMATEST_ET_SUBMIT, - total_tests, src_off, dst_off, - len, cookie); + dmaengine_unmap_put(um); + result("submit error", total_tests, src_off, + dst_off, len, ret); msleep(100); failed_tests++; continue; @@ -735,59 +633,59 @@ static int dmatest_func(void *data) * free it this time?" dancing. For now, just * leave it dangling. */ - thread_result_add(info, result, DMATEST_ET_TIMEOUT, - total_tests, src_off, dst_off, - len, 0); + dmaengine_unmap_put(um); + result("test timed out", total_tests, src_off, dst_off, + len, 0); failed_tests++; continue; - } else if (status != DMA_SUCCESS) { - enum dmatest_error_type type = (status == DMA_ERROR) ? - DMATEST_ET_DMA_ERROR : DMATEST_ET_DMA_IN_PROGRESS; - thread_result_add(info, result, type, - total_tests, src_off, dst_off, - len, status); + } else if (status != DMA_COMPLETE) { + dmaengine_unmap_put(um); + result(status == DMA_ERROR ? + "completion error status" : + "completion busy status", total_tests, src_off, + dst_off, len, ret); failed_tests++; continue; } - /* Unmap by myself (see DMA_COMPL_SKIP_DEST_UNMAP above) */ - unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt); + dmaengine_unmap_put(um); - error_count = 0; + if (params->noverify) { + verbose_result("test passed", total_tests, src_off, + dst_off, len, 0); + continue; + } - pr_debug("%s: verifying source buffer...\n", thread_name); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->srcs, -1, + pr_debug("%s: verifying source buffer...\n", current->comm); + error_count = dmatest_verify(thread->srcs, 0, src_off, 0, PATTERN_SRC, true); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->srcs, 0, - src_off, PATTERN_SRC | PATTERN_COPY, true); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->srcs, 1, - src_off + len, PATTERN_SRC, true); - - pr_debug("%s: verifying dest buffer...\n", thread_name); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->dsts, -1, + error_count += dmatest_verify(thread->srcs, src_off, + src_off + len, src_off, + PATTERN_SRC | PATTERN_COPY, true); + error_count += dmatest_verify(thread->srcs, src_off + len, + params->buf_size, src_off + len, + PATTERN_SRC, true); + + pr_debug("%s: verifying dest buffer...\n", current->comm); + error_count += dmatest_verify(thread->dsts, 0, dst_off, 0, PATTERN_DST, false); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->dsts, 0, - src_off, PATTERN_SRC | PATTERN_COPY, false); - error_count += verify_result_add(info, result, total_tests, - src_off, dst_off, len, thread->dsts, 1, - dst_off + len, PATTERN_DST, false); + error_count += dmatest_verify(thread->dsts, dst_off, + dst_off + len, src_off, + PATTERN_SRC | PATTERN_COPY, false); + error_count += dmatest_verify(thread->dsts, dst_off + len, + params->buf_size, dst_off + len, + PATTERN_DST, false); if (error_count) { - thread_result_add(info, result, DMATEST_ET_VERIFY, - total_tests, src_off, dst_off, - len, error_count); + result("data error", total_tests, src_off, dst_off, + len, error_count); failed_tests++; } else { - thread_result_add(info, result, DMATEST_ET_OK, - total_tests, src_off, dst_off, - len, 0); + verbose_result("test passed", total_tests, src_off, + dst_off, len, 0); } } + runtime = ktime_us_delta(ktime_get(), ktime); ret = 0; for (i = 0; thread->dsts[i]; i++) @@ -802,20 +700,17 @@ err_srcbuf: err_srcs: kfree(pq_coefs); err_thread_type: - pr_notice("%s: terminating after %u tests, %u failures (status %d)\n", - thread_name, total_tests, failed_tests, ret); + pr_info("%s: summary %u tests, %u failures %llu iops %llu KB/s (%d)\n", + current->comm, total_tests, failed_tests, + dmatest_persec(runtime, total_tests), + dmatest_KBs(runtime, total_len), ret); /* terminate all transfers on specified channels */ if (ret) dmaengine_terminate_all(chan); thread->done = true; - - if (params->iterations > 0) - while (!kthread_should_stop()) { - DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait_dmatest_exit); - interruptible_sleep_on(&wait_dmatest_exit); - } + wake_up(&thread_wait); return ret; } @@ -828,9 +723,10 @@ static void dmatest_cleanup_channel(struct dmatest_chan *dtc) list_for_each_entry_safe(thread, _thread, &dtc->threads, node) { ret = kthread_stop(thread->task); - pr_debug("dmatest: thread %s exited with status %d\n", - thread->task->comm, ret); + pr_debug("thread %s exited with status %d\n", + thread->task->comm, ret); list_del(&thread->node); + put_task_struct(thread->task); kfree(thread); } @@ -861,27 +757,27 @@ static int dmatest_add_threads(struct dmatest_info *info, for (i = 0; i < params->threads_per_chan; i++) { thread = kzalloc(sizeof(struct dmatest_thread), GFP_KERNEL); if (!thread) { - pr_warning("dmatest: No memory for %s-%s%u\n", - dma_chan_name(chan), op, i); - + pr_warn("No memory for %s-%s%u\n", + dma_chan_name(chan), op, i); break; } thread->info = info; thread->chan = dtc->chan; thread->type = type; smp_wmb(); - thread->task = kthread_run(dmatest_func, thread, "%s-%s%u", + thread->task = kthread_create(dmatest_func, thread, "%s-%s%u", dma_chan_name(chan), op, i); if (IS_ERR(thread->task)) { - pr_warning("dmatest: Failed to run thread %s-%s%u\n", - dma_chan_name(chan), op, i); + pr_warn("Failed to create thread %s-%s%u\n", + dma_chan_name(chan), op, i); kfree(thread); break; } /* srcbuf and dstbuf are allocated by the thread itself */ - + get_task_struct(thread->task); list_add_tail(&thread->node, &dtc->threads); + wake_up_process(thread->task); } return i; @@ -897,7 +793,7 @@ static int dmatest_add_channel(struct dmatest_info *info, dtc = kmalloc(sizeof(struct dmatest_chan), GFP_KERNEL); if (!dtc) { - pr_warning("dmatest: No memory for %s\n", dma_chan_name(chan)); + pr_warn("No memory for %s\n", dma_chan_name(chan)); return -ENOMEM; } @@ -917,7 +813,7 @@ static int dmatest_add_channel(struct dmatest_info *info, thread_count += cnt > 0 ? cnt : 0; } - pr_info("dmatest: Started %u threads using %s\n", + pr_info("Started %u threads using %s\n", thread_count, dma_chan_name(chan)); list_add_tail(&dtc->node, &info->channels); @@ -937,20 +833,20 @@ static bool filter(struct dma_chan *chan, void *param) return true; } -static int __run_threaded_test(struct dmatest_info *info) +static void request_channels(struct dmatest_info *info, + enum dma_transaction_type type) { dma_cap_mask_t mask; - struct dma_chan *chan; - struct dmatest_params *params = &info->params; - int err = 0; dma_cap_zero(mask); - dma_cap_set(DMA_MEMCPY, mask); + dma_cap_set(type, mask); for (;;) { + struct dmatest_params *params = &info->params; + struct dma_chan *chan; + chan = dma_request_channel(mask, filter, params); if (chan) { - err = dmatest_add_channel(info, chan); - if (err) { + if (dmatest_add_channel(info, chan)) { dma_release_channel(chan); break; /* add_channel failed, punt */ } @@ -960,22 +856,30 @@ static int __run_threaded_test(struct dmatest_info *info) info->nr_channels >= params->max_channels) break; /* we have all we need */ } - return err; } -#ifndef MODULE -static int run_threaded_test(struct dmatest_info *info) +static void run_threaded_test(struct dmatest_info *info) { - int ret; + struct dmatest_params *params = &info->params; - mutex_lock(&info->lock); - ret = __run_threaded_test(info); - mutex_unlock(&info->lock); - return ret; + /* Copy test parameters */ + params->buf_size = test_buf_size; + strlcpy(params->channel, strim(test_channel), sizeof(params->channel)); + strlcpy(params->device, strim(test_device), sizeof(params->device)); + params->threads_per_chan = threads_per_chan; + params->max_channels = max_channels; + params->iterations = iterations; + params->xor_sources = xor_sources; + params->pq_sources = pq_sources; + params->timeout = timeout; + params->noverify = noverify; + + request_channels(info, DMA_MEMCPY); + request_channels(info, DMA_XOR); + request_channels(info, DMA_PQ); } -#endif -static void __stop_threaded_test(struct dmatest_info *info) +static void stop_threaded_test(struct dmatest_info *info) { struct dmatest_chan *dtc, *_dtc; struct dma_chan *chan; @@ -984,203 +888,86 @@ static void __stop_threaded_test(struct dmatest_info *info) list_del(&dtc->node); chan = dtc->chan; dmatest_cleanup_channel(dtc); - pr_debug("dmatest: dropped channel %s\n", dma_chan_name(chan)); + pr_debug("dropped channel %s\n", dma_chan_name(chan)); dma_release_channel(chan); } info->nr_channels = 0; } -static void stop_threaded_test(struct dmatest_info *info) +static void restart_threaded_test(struct dmatest_info *info, bool run) { - mutex_lock(&info->lock); - __stop_threaded_test(info); - mutex_unlock(&info->lock); -} - -static int __restart_threaded_test(struct dmatest_info *info, bool run) -{ - struct dmatest_params *params = &info->params; + /* we might be called early to set run=, defer running until all + * parameters have been evaluated + */ + if (!info->did_init) + return; /* Stop any running test first */ - __stop_threaded_test(info); - - if (run == false) - return 0; - - /* Clear results from previous run */ - result_free(info, NULL); - - /* Copy test parameters */ - params->buf_size = test_buf_size; - strlcpy(params->channel, strim(test_channel), sizeof(params->channel)); - strlcpy(params->device, strim(test_device), sizeof(params->device)); - params->threads_per_chan = threads_per_chan; - params->max_channels = max_channels; - params->iterations = iterations; - params->xor_sources = xor_sources; - params->pq_sources = pq_sources; - params->timeout = timeout; + stop_threaded_test(info); /* Run test with new parameters */ - return __run_threaded_test(info); -} - -static bool __is_threaded_test_run(struct dmatest_info *info) -{ - struct dmatest_chan *dtc; - - list_for_each_entry(dtc, &info->channels, node) { - struct dmatest_thread *thread; - - list_for_each_entry(thread, &dtc->threads, node) { - if (!thread->done) - return true; - } - } - - return false; + run_threaded_test(info); } -static ssize_t dtf_read_run(struct file *file, char __user *user_buf, - size_t count, loff_t *ppos) +static int dmatest_run_get(char *val, const struct kernel_param *kp) { - struct dmatest_info *info = file->private_data; - char buf[3]; + struct dmatest_info *info = &test_info; mutex_lock(&info->lock); - - if (__is_threaded_test_run(info)) { - buf[0] = 'Y'; + if (is_threaded_test_run(info)) { + dmatest_run = true; } else { - __stop_threaded_test(info); - buf[0] = 'N'; + stop_threaded_test(info); + dmatest_run = false; } - mutex_unlock(&info->lock); - buf[1] = '\n'; - buf[2] = 0x00; - return simple_read_from_buffer(user_buf, count, ppos, buf, 2); -} - -static ssize_t dtf_write_run(struct file *file, const char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct dmatest_info *info = file->private_data; - char buf[16]; - bool bv; - int ret = 0; - if (copy_from_user(buf, user_buf, min(count, (sizeof(buf) - 1)))) - return -EFAULT; - - if (strtobool(buf, &bv) == 0) { - mutex_lock(&info->lock); - - if (__is_threaded_test_run(info)) - ret = -EBUSY; - else - ret = __restart_threaded_test(info, bv); - - mutex_unlock(&info->lock); - } - - return ret ? ret : count; + return param_get_bool(val, kp); } -static const struct file_operations dtf_run_fops = { - .read = dtf_read_run, - .write = dtf_write_run, - .open = simple_open, - .llseek = default_llseek, -}; - -static int dtf_results_show(struct seq_file *sf, void *data) +static int dmatest_run_set(const char *val, const struct kernel_param *kp) { - struct dmatest_info *info = sf->private; - struct dmatest_result *result; - struct dmatest_thread_result *tr; - unsigned int i; + struct dmatest_info *info = &test_info; + int ret; - mutex_lock(&info->results_lock); - list_for_each_entry(result, &info->results, node) { - list_for_each_entry(tr, &result->results, node) { - seq_printf(sf, "%s\n", - thread_result_get(result->name, tr)); - if (tr->type == DMATEST_ET_VERIFY_BUF) { - for (i = 0; i < tr->vr->error_count; i++) { - seq_printf(sf, "\t%s\n", - verify_result_get_one(tr->vr, i)); - } - } - } + mutex_lock(&info->lock); + ret = param_set_bool(val, kp); + if (ret) { + mutex_unlock(&info->lock); + return ret; } - mutex_unlock(&info->results_lock); - return 0; -} - -static int dtf_results_open(struct inode *inode, struct file *file) -{ - return single_open(file, dtf_results_show, inode->i_private); -} - -static const struct file_operations dtf_results_fops = { - .open = dtf_results_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int dmatest_register_dbgfs(struct dmatest_info *info) -{ - struct dentry *d; - - d = debugfs_create_dir("dmatest", NULL); - if (IS_ERR(d)) - return PTR_ERR(d); - if (!d) - goto err_root; + if (is_threaded_test_run(info)) + ret = -EBUSY; + else if (dmatest_run) + restart_threaded_test(info, dmatest_run); - info->root = d; - - /* Run or stop threaded test */ - debugfs_create_file("run", S_IWUSR | S_IRUGO, info->root, info, - &dtf_run_fops); - - /* Results of test in progress */ - debugfs_create_file("results", S_IRUGO, info->root, info, - &dtf_results_fops); - - return 0; + mutex_unlock(&info->lock); -err_root: - pr_err("dmatest: Failed to initialize debugfs\n"); - return -ENOMEM; + return ret; } static int __init dmatest_init(void) { struct dmatest_info *info = &test_info; - int ret; - - memset(info, 0, sizeof(*info)); + struct dmatest_params *params = &info->params; - mutex_init(&info->lock); - INIT_LIST_HEAD(&info->channels); + if (dmatest_run) { + mutex_lock(&info->lock); + run_threaded_test(info); + mutex_unlock(&info->lock); + } - mutex_init(&info->results_lock); - INIT_LIST_HEAD(&info->results); + if (params->iterations && wait) + wait_event(thread_wait, !is_threaded_test_run(info)); - ret = dmatest_register_dbgfs(info); - if (ret) - return ret; + /* module parameters are stable, inittime tests are started, + * let userspace take over 'run' control + */ + info->did_init = true; -#ifdef MODULE return 0; -#else - return run_threaded_test(info); -#endif } /* when compiled-in wait for drivers to load first */ late_initcall(dmatest_init); @@ -1189,9 +976,9 @@ static void __exit dmatest_exit(void) { struct dmatest_info *info = &test_info; - debugfs_remove_recursive(info->root); + mutex_lock(&info->lock); stop_threaded_test(info); - result_free(info, NULL); + mutex_unlock(&info->lock); } module_exit(dmatest_exit); diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index 89eb89f22284..7516be4677cf 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -85,10 +85,6 @@ static struct device *chan2dev(struct dma_chan *chan) { return &chan->dev->device; } -static struct device *chan2parent(struct dma_chan *chan) -{ - return chan->dev->device.parent; -} static struct dw_desc *dwc_first_active(struct dw_dma_chan *dwc) { @@ -311,26 +307,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc, list_splice_init(&desc->tx_list, &dwc->free_list); list_move(&desc->desc_node, &dwc->free_list); - if (!is_slave_direction(dwc->direction)) { - struct device *parent = chan2parent(&dwc->chan); - if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(parent, desc->lli.dar, - desc->total_len, DMA_FROM_DEVICE); - else - dma_unmap_page(parent, desc->lli.dar, - desc->total_len, DMA_FROM_DEVICE); - } - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(parent, desc->lli.sar, - desc->total_len, DMA_TO_DEVICE); - else - dma_unmap_page(parent, desc->lli.sar, - desc->total_len, DMA_TO_DEVICE); - } - } - + dma_descriptor_unmap(txd); spin_unlock_irqrestore(&dwc->lock, flags); if (callback) @@ -1098,13 +1075,13 @@ dwc_tx_status(struct dma_chan *chan, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; dwc_scan_descriptors(to_dw_dma(chan->device), dwc); ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) + if (ret != DMA_COMPLETE) dma_set_residue(txstate, dwc_get_residue(dwc)); if (dwc->paused && ret == DMA_IN_PROGRESS) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index bef8a368c8dd..2539ea0cbc63 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -46,14 +46,21 @@ #define EDMA_CHANS 64 #endif /* CONFIG_ARCH_DAVINCI_DA8XX */ -/* Max of 16 segments per channel to conserve PaRAM slots */ -#define MAX_NR_SG 16 +/* + * Max of 20 segments per channel to conserve PaRAM slots + * Also note that MAX_NR_SG should be atleast the no.of periods + * that are required for ASoC, otherwise DMA prep calls will + * fail. Today davinci-pcm is the only user of this driver and + * requires atleast 17 slots, so we setup the default to 20. + */ +#define MAX_NR_SG 20 #define EDMA_MAX_SLOTS MAX_NR_SG #define EDMA_DESCRIPTORS 16 struct edma_desc { struct virt_dma_desc vdesc; struct list_head node; + int cyclic; int absync; int pset_nr; int processed; @@ -167,8 +174,13 @@ static void edma_execute(struct edma_chan *echan) * then setup a link to the dummy slot, this results in all future * events being absorbed and that's OK because we're done */ - if (edesc->processed == edesc->pset_nr) - edma_link(echan->slot[nslots-1], echan->ecc->dummy_slot); + if (edesc->processed == edesc->pset_nr) { + if (edesc->cyclic) + edma_link(echan->slot[nslots-1], echan->slot[1]); + else + edma_link(echan->slot[nslots-1], + echan->ecc->dummy_slot); + } edma_resume(echan->ch_num); @@ -250,6 +262,117 @@ static int edma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, return ret; } +/* + * A PaRAM set configuration abstraction used by other modes + * @chan: Channel who's PaRAM set we're configuring + * @pset: PaRAM set to initialize and setup. + * @src_addr: Source address of the DMA + * @dst_addr: Destination address of the DMA + * @burst: In units of dev_width, how much to send + * @dev_width: How much is the dev_width + * @dma_length: Total length of the DMA transfer + * @direction: Direction of the transfer + */ +static int edma_config_pset(struct dma_chan *chan, struct edmacc_param *pset, + dma_addr_t src_addr, dma_addr_t dst_addr, u32 burst, + enum dma_slave_buswidth dev_width, unsigned int dma_length, + enum dma_transfer_direction direction) +{ + struct edma_chan *echan = to_edma_chan(chan); + struct device *dev = chan->device->dev; + int acnt, bcnt, ccnt, cidx; + int src_bidx, dst_bidx, src_cidx, dst_cidx; + int absync; + + acnt = dev_width; + /* + * If the maxburst is equal to the fifo width, use + * A-synced transfers. This allows for large contiguous + * buffer transfers using only one PaRAM set. + */ + if (burst == 1) { + /* + * For the A-sync case, bcnt and ccnt are the remainder + * and quotient respectively of the division of: + * (dma_length / acnt) by (SZ_64K -1). This is so + * that in case bcnt over flows, we have ccnt to use. + * Note: In A-sync tranfer only, bcntrld is used, but it + * only applies for sg_dma_len(sg) >= SZ_64K. + * In this case, the best way adopted is- bccnt for the + * first frame will be the remainder below. Then for + * every successive frame, bcnt will be SZ_64K-1. This + * is assured as bcntrld = 0xffff in end of function. + */ + absync = false; + ccnt = dma_length / acnt / (SZ_64K - 1); + bcnt = dma_length / acnt - ccnt * (SZ_64K - 1); + /* + * If bcnt is non-zero, we have a remainder and hence an + * extra frame to transfer, so increment ccnt. + */ + if (bcnt) + ccnt++; + else + bcnt = SZ_64K - 1; + cidx = acnt; + } else { + /* + * If maxburst is greater than the fifo address_width, + * use AB-synced transfers where A count is the fifo + * address_width and B count is the maxburst. In this + * case, we are limited to transfers of C count frames + * of (address_width * maxburst) where C count is limited + * to SZ_64K-1. This places an upper bound on the length + * of an SG segment that can be handled. + */ + absync = true; + bcnt = burst; + ccnt = dma_length / (acnt * bcnt); + if (ccnt > (SZ_64K - 1)) { + dev_err(dev, "Exceeded max SG segment size\n"); + return -EINVAL; + } + cidx = acnt * bcnt; + } + + if (direction == DMA_MEM_TO_DEV) { + src_bidx = acnt; + src_cidx = cidx; + dst_bidx = 0; + dst_cidx = 0; + } else if (direction == DMA_DEV_TO_MEM) { + src_bidx = 0; + src_cidx = 0; + dst_bidx = acnt; + dst_cidx = cidx; + } else { + dev_err(dev, "%s: direction not implemented yet\n", __func__); + return -EINVAL; + } + + pset->opt = EDMA_TCC(EDMA_CHAN_SLOT(echan->ch_num)); + /* Configure A or AB synchronized transfers */ + if (absync) + pset->opt |= SYNCDIM; + + pset->src = src_addr; + pset->dst = dst_addr; + + pset->src_dst_bidx = (dst_bidx << 16) | src_bidx; + pset->src_dst_cidx = (dst_cidx << 16) | src_cidx; + + pset->a_b_cnt = bcnt << 16 | acnt; + pset->ccnt = ccnt; + /* + * Only time when (bcntrld) auto reload is required is for + * A-sync case, and in this case, a requirement of reload value + * of SZ_64K-1 only is assured. 'link' is initially set to NULL + * and then later will be populated by edma_execute. + */ + pset->link_bcntrld = 0xffffffff; + return absync; +} + static struct dma_async_tx_descriptor *edma_prep_slave_sg( struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, enum dma_transfer_direction direction, @@ -258,23 +381,21 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( struct edma_chan *echan = to_edma_chan(chan); struct device *dev = chan->device->dev; struct edma_desc *edesc; - dma_addr_t dev_addr; + dma_addr_t src_addr = 0, dst_addr = 0; enum dma_slave_buswidth dev_width; u32 burst; struct scatterlist *sg; - int acnt, bcnt, ccnt, src, dst, cidx; - int src_bidx, dst_bidx, src_cidx, dst_cidx; - int i, nslots; + int i, nslots, ret; if (unlikely(!echan || !sgl || !sg_len)) return NULL; if (direction == DMA_DEV_TO_MEM) { - dev_addr = echan->cfg.src_addr; + src_addr = echan->cfg.src_addr; dev_width = echan->cfg.src_addr_width; burst = echan->cfg.src_maxburst; } else if (direction == DMA_MEM_TO_DEV) { - dev_addr = echan->cfg.dst_addr; + dst_addr = echan->cfg.dst_addr; dev_width = echan->cfg.dst_addr_width; burst = echan->cfg.dst_maxburst; } else { @@ -307,7 +428,6 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( if (echan->slot[i] < 0) { kfree(edesc); dev_err(dev, "Failed to allocate slot\n"); - kfree(edesc); return NULL; } } @@ -315,64 +435,21 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( /* Configure PaRAM sets for each SG */ for_each_sg(sgl, sg, sg_len, i) { - - acnt = dev_width; - - /* - * If the maxburst is equal to the fifo width, use - * A-synced transfers. This allows for large contiguous - * buffer transfers using only one PaRAM set. - */ - if (burst == 1) { - edesc->absync = false; - ccnt = sg_dma_len(sg) / acnt / (SZ_64K - 1); - bcnt = sg_dma_len(sg) / acnt - ccnt * (SZ_64K - 1); - if (bcnt) - ccnt++; - else - bcnt = SZ_64K - 1; - cidx = acnt; - /* - * If maxburst is greater than the fifo address_width, - * use AB-synced transfers where A count is the fifo - * address_width and B count is the maxburst. In this - * case, we are limited to transfers of C count frames - * of (address_width * maxburst) where C count is limited - * to SZ_64K-1. This places an upper bound on the length - * of an SG segment that can be handled. - */ - } else { - edesc->absync = true; - bcnt = burst; - ccnt = sg_dma_len(sg) / (acnt * bcnt); - if (ccnt > (SZ_64K - 1)) { - dev_err(dev, "Exceeded max SG segment size\n"); - kfree(edesc); - return NULL; - } - cidx = acnt * bcnt; + /* Get address for each SG */ + if (direction == DMA_DEV_TO_MEM) + dst_addr = sg_dma_address(sg); + else + src_addr = sg_dma_address(sg); + + ret = edma_config_pset(chan, &edesc->pset[i], src_addr, + dst_addr, burst, dev_width, + sg_dma_len(sg), direction); + if (ret < 0) { + kfree(edesc); + return NULL; } - if (direction == DMA_MEM_TO_DEV) { - src = sg_dma_address(sg); - dst = dev_addr; - src_bidx = acnt; - src_cidx = cidx; - dst_bidx = 0; - dst_cidx = 0; - } else { - src = dev_addr; - dst = sg_dma_address(sg); - src_bidx = 0; - src_cidx = 0; - dst_bidx = acnt; - dst_cidx = cidx; - } - - edesc->pset[i].opt = EDMA_TCC(EDMA_CHAN_SLOT(echan->ch_num)); - /* Configure A or AB synchronized transfers */ - if (edesc->absync) - edesc->pset[i].opt |= SYNCDIM; + edesc->absync = ret; /* If this is the last in a current SG set of transactions, enable interrupts so that next set is processed */ @@ -382,17 +459,138 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( /* If this is the last set, enable completion interrupt flag */ if (i == sg_len - 1) edesc->pset[i].opt |= TCINTEN; + } - edesc->pset[i].src = src; - edesc->pset[i].dst = dst; + return vchan_tx_prep(&echan->vchan, &edesc->vdesc, tx_flags); +} - edesc->pset[i].src_dst_bidx = (dst_bidx << 16) | src_bidx; - edesc->pset[i].src_dst_cidx = (dst_cidx << 16) | src_cidx; +static struct dma_async_tx_descriptor *edma_prep_dma_cyclic( + struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, + size_t period_len, enum dma_transfer_direction direction, + unsigned long tx_flags, void *context) +{ + struct edma_chan *echan = to_edma_chan(chan); + struct device *dev = chan->device->dev; + struct edma_desc *edesc; + dma_addr_t src_addr, dst_addr; + enum dma_slave_buswidth dev_width; + u32 burst; + int i, ret, nslots; + + if (unlikely(!echan || !buf_len || !period_len)) + return NULL; + + if (direction == DMA_DEV_TO_MEM) { + src_addr = echan->cfg.src_addr; + dst_addr = buf_addr; + dev_width = echan->cfg.src_addr_width; + burst = echan->cfg.src_maxburst; + } else if (direction == DMA_MEM_TO_DEV) { + src_addr = buf_addr; + dst_addr = echan->cfg.dst_addr; + dev_width = echan->cfg.dst_addr_width; + burst = echan->cfg.dst_maxburst; + } else { + dev_err(dev, "%s: bad direction?\n", __func__); + return NULL; + } + + if (dev_width == DMA_SLAVE_BUSWIDTH_UNDEFINED) { + dev_err(dev, "Undefined slave buswidth\n"); + return NULL; + } + + if (unlikely(buf_len % period_len)) { + dev_err(dev, "Period should be multiple of Buffer length\n"); + return NULL; + } + + nslots = (buf_len / period_len) + 1; + + /* + * Cyclic DMA users such as audio cannot tolerate delays introduced + * by cases where the number of periods is more than the maximum + * number of SGs the EDMA driver can handle at a time. For DMA types + * such as Slave SGs, such delays are tolerable and synchronized, + * but the synchronization is difficult to achieve with Cyclic and + * cannot be guaranteed, so we error out early. + */ + if (nslots > MAX_NR_SG) + return NULL; + + edesc = kzalloc(sizeof(*edesc) + nslots * + sizeof(edesc->pset[0]), GFP_ATOMIC); + if (!edesc) { + dev_dbg(dev, "Failed to allocate a descriptor\n"); + return NULL; + } + + edesc->cyclic = 1; + edesc->pset_nr = nslots; + + dev_dbg(dev, "%s: nslots=%d\n", __func__, nslots); + dev_dbg(dev, "%s: period_len=%d\n", __func__, period_len); + dev_dbg(dev, "%s: buf_len=%d\n", __func__, buf_len); + + for (i = 0; i < nslots; i++) { + /* Allocate a PaRAM slot, if needed */ + if (echan->slot[i] < 0) { + echan->slot[i] = + edma_alloc_slot(EDMA_CTLR(echan->ch_num), + EDMA_SLOT_ANY); + if (echan->slot[i] < 0) { + dev_err(dev, "Failed to allocate slot\n"); + return NULL; + } + } + + if (i == nslots - 1) { + memcpy(&edesc->pset[i], &edesc->pset[0], + sizeof(edesc->pset[0])); + break; + } + + ret = edma_config_pset(chan, &edesc->pset[i], src_addr, + dst_addr, burst, dev_width, period_len, + direction); + if (ret < 0) + return NULL; - edesc->pset[i].a_b_cnt = bcnt << 16 | acnt; - edesc->pset[i].ccnt = ccnt; - edesc->pset[i].link_bcntrld = 0xffffffff; + if (direction == DMA_DEV_TO_MEM) + dst_addr += period_len; + else + src_addr += period_len; + dev_dbg(dev, "%s: Configure period %d of buf:\n", __func__, i); + dev_dbg(dev, + "\n pset[%d]:\n" + " chnum\t%d\n" + " slot\t%d\n" + " opt\t%08x\n" + " src\t%08x\n" + " dst\t%08x\n" + " abcnt\t%08x\n" + " ccnt\t%08x\n" + " bidx\t%08x\n" + " cidx\t%08x\n" + " lkrld\t%08x\n", + i, echan->ch_num, echan->slot[i], + edesc->pset[i].opt, + edesc->pset[i].src, + edesc->pset[i].dst, + edesc->pset[i].a_b_cnt, + edesc->pset[i].ccnt, + edesc->pset[i].src_dst_bidx, + edesc->pset[i].src_dst_cidx, + edesc->pset[i].link_bcntrld); + + edesc->absync = ret; + + /* + * Enable interrupts for every period because callback + * has to be called for every period. + */ + edesc->pset[i].opt |= TCINTEN; } return vchan_tx_prep(&echan->vchan, &edesc->vdesc, tx_flags); @@ -406,30 +604,34 @@ static void edma_callback(unsigned ch_num, u16 ch_status, void *data) unsigned long flags; struct edmacc_param p; - /* Pause the channel */ - edma_pause(echan->ch_num); + edesc = echan->edesc; + + /* Pause the channel for non-cyclic */ + if (!edesc || (edesc && !edesc->cyclic)) + edma_pause(echan->ch_num); switch (ch_status) { - case DMA_COMPLETE: + case EDMA_DMA_COMPLETE: spin_lock_irqsave(&echan->vchan.lock, flags); - edesc = echan->edesc; if (edesc) { - if (edesc->processed == edesc->pset_nr) { + if (edesc->cyclic) { + vchan_cyclic_callback(&edesc->vdesc); + } else if (edesc->processed == edesc->pset_nr) { dev_dbg(dev, "Transfer complete, stopping channel %d\n", ch_num); edma_stop(echan->ch_num); vchan_cookie_complete(&edesc->vdesc); + edma_execute(echan); } else { dev_dbg(dev, "Intermediate transfer complete on channel %d\n", ch_num); + edma_execute(echan); } - - edma_execute(echan); } spin_unlock_irqrestore(&echan->vchan.lock, flags); break; - case DMA_CC_ERROR: + case EDMA_DMA_CC_ERROR: spin_lock_irqsave(&echan->vchan.lock, flags); edma_read_slot(EDMA_CHAN_SLOT(echan->slot[0]), &p); @@ -579,7 +781,7 @@ static enum dma_status edma_tx_status(struct dma_chan *chan, unsigned long flags; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS || !txstate) + if (ret == DMA_COMPLETE || !txstate) return ret; spin_lock_irqsave(&echan->vchan.lock, flags); @@ -619,6 +821,7 @@ static void edma_dma_init(struct edma_cc *ecc, struct dma_device *dma, struct device *dev) { dma->device_prep_slave_sg = edma_prep_slave_sg; + dma->device_prep_dma_cyclic = edma_prep_dma_cyclic; dma->device_alloc_chan_resources = edma_alloc_chan_resources; dma->device_free_chan_resources = edma_free_chan_resources; dma->device_issue_pending = edma_issue_pending; diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c index 591cd8c63abb..cb4bf682a708 100644 --- a/drivers/dma/ep93xx_dma.c +++ b/drivers/dma/ep93xx_dma.c @@ -733,28 +733,6 @@ static void ep93xx_dma_advance_work(struct ep93xx_dma_chan *edmac) spin_unlock_irqrestore(&edmac->lock, flags); } -static void ep93xx_dma_unmap_buffers(struct ep93xx_dma_desc *desc) -{ - struct device *dev = desc->txd.chan->device->dev; - - if (!(desc->txd.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (desc->txd.flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(dev, desc->src_addr, desc->size, - DMA_TO_DEVICE); - else - dma_unmap_page(dev, desc->src_addr, desc->size, - DMA_TO_DEVICE); - } - if (!(desc->txd.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (desc->txd.flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(dev, desc->dst_addr, desc->size, - DMA_FROM_DEVICE); - else - dma_unmap_page(dev, desc->dst_addr, desc->size, - DMA_FROM_DEVICE); - } -} - static void ep93xx_dma_tasklet(unsigned long data) { struct ep93xx_dma_chan *edmac = (struct ep93xx_dma_chan *)data; @@ -787,13 +765,7 @@ static void ep93xx_dma_tasklet(unsigned long data) /* Now we can release all the chained descriptors */ list_for_each_entry_safe(desc, d, &list, node) { - /* - * For the memcpy channels the API requires us to unmap the - * buffers unless requested otherwise. - */ - if (!edmac->chan.private) - ep93xx_dma_unmap_buffers(desc); - + dma_descriptor_unmap(&desc->txd); ep93xx_dma_desc_put(edmac, desc); } diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 61517dd0d0b7..7086a16a55f2 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -870,22 +870,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan, /* Run any dependencies */ dma_run_dependencies(txd); - /* Unmap the dst buffer, if requested */ - if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(dev, dst, len, DMA_FROM_DEVICE); - else - dma_unmap_page(dev, dst, len, DMA_FROM_DEVICE); - } - - /* Unmap the src buffer, if requested */ - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(dev, src, len, DMA_TO_DEVICE); - else - dma_unmap_page(dev, src, len, DMA_TO_DEVICE); - } - + dma_descriptor_unmap(txd); #ifdef FSL_DMA_LD_DEBUG chan_dbg(chan, "LD %p free\n", desc); #endif @@ -1255,7 +1240,9 @@ static int fsl_dma_chan_probe(struct fsldma_device *fdev, WARN_ON(fdev->feature != chan->feature); chan->dev = fdev->dev; - chan->id = ((res.start - 0x100) & 0xfff) >> 7; + chan->id = (res.start & 0xfff) < 0x300 ? + ((res.start - 0x100) & 0xfff) >> 7 : + ((res.start - 0x200) & 0xfff) >> 7; if (chan->id >= FSL_DMA_MAX_CHANS_PER_DEVICE) { dev_err(fdev->dev, "too many channels for device\n"); err = -EINVAL; @@ -1428,6 +1415,7 @@ static int fsldma_of_remove(struct platform_device *op) } static const struct of_device_id fsldma_of_ids[] = { + { .compatible = "fsl,elo3-dma", }, { .compatible = "fsl,eloplus-dma", }, { .compatible = "fsl,elo-dma", }, {} @@ -1449,7 +1437,7 @@ static struct platform_driver fsldma_of_driver = { static __init int fsldma_init(void) { - pr_info("Freescale Elo / Elo Plus DMA driver\n"); + pr_info("Freescale Elo series DMA driver\n"); return platform_driver_register(&fsldma_of_driver); } @@ -1461,5 +1449,5 @@ static void __exit fsldma_exit(void) subsys_initcall(fsldma_init); module_exit(fsldma_exit); -MODULE_DESCRIPTION("Freescale Elo / Elo Plus DMA driver"); +MODULE_DESCRIPTION("Freescale Elo series DMA driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h index f5c38791fc74..1ffc24484d23 100644 --- a/drivers/dma/fsldma.h +++ b/drivers/dma/fsldma.h @@ -112,7 +112,7 @@ struct fsldma_chan_regs { }; struct fsldma_chan; -#define FSL_DMA_MAX_CHANS_PER_DEVICE 4 +#define FSL_DMA_MAX_CHANS_PER_DEVICE 8 struct fsldma_device { void __iomem *regs; /* DGSR register base */ diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index 55852c026791..6f9ac2022abd 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -572,9 +572,11 @@ static int imxdma_xfer_desc(struct imxdma_desc *d) imx_dmav1_writel(imxdma, d->len, DMA_CNTR(imxdmac->channel)); - dev_dbg(imxdma->dev, "%s channel: %d dest=0x%08x src=0x%08x " - "dma_length=%d\n", __func__, imxdmac->channel, - d->dest, d->src, d->len); + dev_dbg(imxdma->dev, + "%s channel: %d dest=0x%08llx src=0x%08llx dma_length=%zu\n", + __func__, imxdmac->channel, + (unsigned long long)d->dest, + (unsigned long long)d->src, d->len); break; /* Cyclic transfer is the same as slave_sg with special sg configuration. */ @@ -586,20 +588,22 @@ static int imxdma_xfer_desc(struct imxdma_desc *d) imx_dmav1_writel(imxdma, imxdmac->ccr_from_device, DMA_CCR(imxdmac->channel)); - dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d " - "total length=%d dev_addr=0x%08x (dev2mem)\n", - __func__, imxdmac->channel, d->sg, d->sgcount, - d->len, imxdmac->per_address); + dev_dbg(imxdma->dev, + "%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (dev2mem)\n", + __func__, imxdmac->channel, + d->sg, d->sgcount, d->len, + (unsigned long long)imxdmac->per_address); } else if (d->direction == DMA_MEM_TO_DEV) { imx_dmav1_writel(imxdma, imxdmac->per_address, DMA_DAR(imxdmac->channel)); imx_dmav1_writel(imxdma, imxdmac->ccr_to_device, DMA_CCR(imxdmac->channel)); - dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d " - "total length=%d dev_addr=0x%08x (mem2dev)\n", - __func__, imxdmac->channel, d->sg, d->sgcount, - d->len, imxdmac->per_address); + dev_dbg(imxdma->dev, + "%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (mem2dev)\n", + __func__, imxdmac->channel, + d->sg, d->sgcount, d->len, + (unsigned long long)imxdmac->per_address); } else { dev_err(imxdma->dev, "%s channel: %d bad dma mode\n", __func__, imxdmac->channel); @@ -771,7 +775,7 @@ static int imxdma_alloc_chan_resources(struct dma_chan *chan) desc->desc.tx_submit = imxdma_tx_submit; /* txd.flags will be overwritten in prep funcs */ desc->desc.flags = DMA_CTRL_ACK; - desc->status = DMA_SUCCESS; + desc->status = DMA_COMPLETE; list_add_tail(&desc->node, &imxdmac->ld_free); imxdmac->descs_allocated++; @@ -870,7 +874,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic( int i; unsigned int periods = buf_len / period_len; - dev_dbg(imxdma->dev, "%s channel: %d buf_len=%d period_len=%d\n", + dev_dbg(imxdma->dev, "%s channel: %d buf_len=%zu period_len=%zu\n", __func__, imxdmac->channel, buf_len, period_len); if (list_empty(&imxdmac->ld_free) || @@ -926,8 +930,9 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_memcpy( struct imxdma_engine *imxdma = imxdmac->imxdma; struct imxdma_desc *desc; - dev_dbg(imxdma->dev, "%s channel: %d src=0x%x dst=0x%x len=%d\n", - __func__, imxdmac->channel, src, dest, len); + dev_dbg(imxdma->dev, "%s channel: %d src=0x%llx dst=0x%llx len=%zu\n", + __func__, imxdmac->channel, (unsigned long long)src, + (unsigned long long)dest, len); if (list_empty(&imxdmac->ld_free) || imxdma_chan_is_doing_cyclic(imxdmac)) @@ -956,9 +961,10 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_interleaved( struct imxdma_engine *imxdma = imxdmac->imxdma; struct imxdma_desc *desc; - dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%x dst_start=0x%x\n" - " src_sgl=%s dst_sgl=%s numf=%d frame_size=%d\n", __func__, - imxdmac->channel, xt->src_start, xt->dst_start, + dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%llx dst_start=0x%llx\n" + " src_sgl=%s dst_sgl=%s numf=%zu frame_size=%zu\n", __func__, + imxdmac->channel, (unsigned long long)xt->src_start, + (unsigned long long) xt->dst_start, xt->src_sgl ? "true" : "false", xt->dst_sgl ? "true" : "false", xt->numf, xt->frame_size); diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index c1fd504cae28..c75679d42028 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -638,7 +638,7 @@ static void mxc_sdma_handle_channel_normal(struct sdma_channel *sdmac) if (error) sdmac->status = DMA_ERROR; else - sdmac->status = DMA_SUCCESS; + sdmac->status = DMA_COMPLETE; dma_cookie_complete(&sdmac->desc); if (sdmac->desc.callback) @@ -1089,8 +1089,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( param &= ~BD_CONT; } - dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n", - i, count, sg->dma_address, + dev_dbg(sdma->dev, "entry %d: count: %d dma: %#llx %s%s\n", + i, count, (u64)sg->dma_address, param & BD_WRAP ? "wrap" : "", param & BD_INTR ? " intr" : ""); @@ -1163,8 +1163,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic( if (i + 1 == num_periods) param |= BD_WRAP; - dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n", - i, period_len, dma_addr, + dev_dbg(sdma->dev, "entry %d: count: %d dma: %#llx %s%s\n", + i, period_len, (u64)dma_addr, param & BD_WRAP ? "wrap" : "", param & BD_INTR ? " intr" : ""); diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index a975ebebea8a..1aab8130efa1 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -309,7 +309,7 @@ static void midc_descriptor_complete(struct intel_mid_dma_chan *midc, callback_txd(param_txd); } if (midc->raw_tfr) { - desc->status = DMA_SUCCESS; + desc->status = DMA_COMPLETE; if (desc->lli != NULL) { pci_pool_free(desc->lli_pool, desc->lli, desc->lli_phys); @@ -481,7 +481,7 @@ static enum dma_status intel_mid_dma_tx_status(struct dma_chan *chan, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) { + if (ret != DMA_COMPLETE) { spin_lock_bh(&midc->lock); midc_scan_descriptors(to_middma_device(chan->device), midc); spin_unlock_bh(&midc->lock); diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index 5ff6fc1819dc..1a49c777607c 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -531,21 +531,6 @@ static void ioat1_cleanup_event(unsigned long data) writew(IOAT_CHANCTRL_RUN, ioat->base.reg_base + IOAT_CHANCTRL_OFFSET); } -void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags, - size_t len, struct ioat_dma_descriptor *hw) -{ - struct pci_dev *pdev = chan->device->pdev; - size_t offset = len - hw->size; - - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) - ioat_unmap(pdev, hw->dst_addr - offset, len, - PCI_DMA_FROMDEVICE, flags, 1); - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) - ioat_unmap(pdev, hw->src_addr - offset, len, - PCI_DMA_TODEVICE, flags, 0); -} - dma_addr_t ioat_get_current_completion(struct ioat_chan_common *chan) { dma_addr_t phys_complete; @@ -602,7 +587,7 @@ static void __cleanup(struct ioat_dma_chan *ioat, dma_addr_t phys_complete) dump_desc_dbg(ioat, desc); if (tx->cookie) { dma_cookie_complete(tx); - ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw); + dma_descriptor_unmap(tx); ioat->active -= desc->hw->tx_cnt; if (tx->callback) { tx->callback(tx->callback_param); @@ -733,7 +718,7 @@ ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(c, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; device->cleanup_fn((unsigned long) c); @@ -833,8 +818,7 @@ int ioat_dma_self_test(struct ioatdma_device *device) dma_src = dma_map_single(dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE); dma_dest = dma_map_single(dev, dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE); - flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP | - DMA_PREP_INTERRUPT; + flags = DMA_PREP_INTERRUPT; tx = device->common.device_prep_dma_memcpy(dma_chan, dma_dest, dma_src, IOAT_TEST_SIZE, flags); if (!tx) { @@ -859,7 +843,7 @@ int ioat_dma_self_test(struct ioatdma_device *device) if (tmo == 0 || dma->device_tx_status(dma_chan, cookie, NULL) - != DMA_SUCCESS) { + != DMA_COMPLETE) { dev_err(dev, "Self-test copy timed out, disabling\n"); err = -ENODEV; goto unmap_dma; @@ -885,8 +869,7 @@ static char ioat_interrupt_style[32] = "msix"; module_param_string(ioat_interrupt_style, ioat_interrupt_style, sizeof(ioat_interrupt_style), 0644); MODULE_PARM_DESC(ioat_interrupt_style, - "set ioat interrupt style: msix (default), " - "msix-single-vector, msi, intx)"); + "set ioat interrupt style: msix (default), msi, intx"); /** * ioat_dma_setup_interrupts - setup interrupt handler @@ -904,8 +887,6 @@ int ioat_dma_setup_interrupts(struct ioatdma_device *device) if (!strcmp(ioat_interrupt_style, "msix")) goto msix; - if (!strcmp(ioat_interrupt_style, "msix-single-vector")) - goto msix_single_vector; if (!strcmp(ioat_interrupt_style, "msi")) goto msi; if (!strcmp(ioat_interrupt_style, "intx")) @@ -920,10 +901,8 @@ msix: device->msix_entries[i].entry = i; err = pci_enable_msix(pdev, device->msix_entries, msixcnt); - if (err < 0) + if (err) goto msi; - if (err > 0) - goto msix_single_vector; for (i = 0; i < msixcnt; i++) { msix = &device->msix_entries[i]; @@ -937,29 +916,13 @@ msix: chan = ioat_chan_by_index(device, j); devm_free_irq(dev, msix->vector, chan); } - goto msix_single_vector; + goto msi; } } intrctrl |= IOAT_INTRCTRL_MSIX_VECTOR_CONTROL; device->irq_mode = IOAT_MSIX; goto done; -msix_single_vector: - msix = &device->msix_entries[0]; - msix->entry = 0; - err = pci_enable_msix(pdev, device->msix_entries, 1); - if (err) - goto msi; - - err = devm_request_irq(dev, msix->vector, ioat_dma_do_interrupt, 0, - "ioat-msix", device); - if (err) { - pci_disable_msix(pdev); - goto msi; - } - device->irq_mode = IOAT_MSIX_SINGLE; - goto done; - msi: err = pci_enable_msi(pdev); if (err) @@ -971,7 +934,7 @@ msi: pci_disable_msi(pdev); goto intx; } - device->irq_mode = IOAT_MSIX; + device->irq_mode = IOAT_MSI; goto done; intx: diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h index 54fb7b9ff9aa..11fb877ddca9 100644 --- a/drivers/dma/ioat/dma.h +++ b/drivers/dma/ioat/dma.h @@ -52,7 +52,6 @@ enum ioat_irq_mode { IOAT_NOIRQ = 0, IOAT_MSIX, - IOAT_MSIX_SINGLE, IOAT_MSI, IOAT_INTX }; @@ -83,7 +82,6 @@ struct ioatdma_device { struct pci_pool *completion_pool; #define MAX_SED_POOLS 5 struct dma_pool *sed_hw_pool[MAX_SED_POOLS]; - struct kmem_cache *sed_pool; struct dma_device common; u8 version; struct msix_entry msix_entries[4]; @@ -342,16 +340,6 @@ static inline bool is_ioat_bug(unsigned long err) return !!err; } -static inline void ioat_unmap(struct pci_dev *pdev, dma_addr_t addr, size_t len, - int direction, enum dma_ctrl_flags flags, bool dst) -{ - if ((dst && (flags & DMA_COMPL_DEST_UNMAP_SINGLE)) || - (!dst && (flags & DMA_COMPL_SRC_UNMAP_SINGLE))) - pci_unmap_single(pdev, addr, len, direction); - else - pci_unmap_page(pdev, addr, len, direction); -} - int ioat_probe(struct ioatdma_device *device); int ioat_register(struct ioatdma_device *device); int ioat1_dma_probe(struct ioatdma_device *dev, int dca); @@ -363,8 +351,6 @@ void ioat_init_channel(struct ioatdma_device *device, struct ioat_chan_common *chan, int idx); enum dma_status ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie, struct dma_tx_state *txstate); -void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags, - size_t len, struct ioat_dma_descriptor *hw); bool ioat_cleanup_preamble(struct ioat_chan_common *chan, dma_addr_t *phys_complete); void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type); diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c index b925e1b1d139..5d3affe7e976 100644 --- a/drivers/dma/ioat/dma_v2.c +++ b/drivers/dma/ioat/dma_v2.c @@ -148,7 +148,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete) tx = &desc->txd; dump_desc_dbg(ioat, desc); if (tx->cookie) { - ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw); + dma_descriptor_unmap(tx); dma_cookie_complete(tx); if (tx->callback) { tx->callback(tx->callback_param); diff --git a/drivers/dma/ioat/dma_v2.h b/drivers/dma/ioat/dma_v2.h index 212d584fe427..470292767e68 100644 --- a/drivers/dma/ioat/dma_v2.h +++ b/drivers/dma/ioat/dma_v2.h @@ -157,7 +157,6 @@ static inline void ioat2_set_chainaddr(struct ioat2_dma_chan *ioat, u64 addr) int ioat2_dma_probe(struct ioatdma_device *dev, int dca); int ioat3_dma_probe(struct ioatdma_device *dev, int dca); -void ioat3_dma_remove(struct ioatdma_device *dev); struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase); struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase); int ioat2_check_space_lock(struct ioat2_dma_chan *ioat, int num_descs); diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index d8ececaf1b57..820817e97e62 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c @@ -67,6 +67,8 @@ #include "dma.h" #include "dma_v2.h" +extern struct kmem_cache *ioat3_sed_cache; + /* ioat hardware assumes at least two sources for raid operations */ #define src_cnt_to_sw(x) ((x) + 2) #define src_cnt_to_hw(x) ((x) - 2) @@ -87,22 +89,8 @@ static const u8 pq_idx_to_field[] = { 1, 4, 5, 0, 1, 2, 4, 5 }; static const u8 pq16_idx_to_field[] = { 1, 4, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6 }; -/* - * technically sources 1 and 2 do not require SED, but the op will have - * at least 9 descriptors so that's irrelevant. - */ -static const u8 pq16_idx_to_sed[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1 }; - static void ioat3_eh(struct ioat2_dma_chan *ioat); -static dma_addr_t xor_get_src(struct ioat_raw_descriptor *descs[2], int idx) -{ - struct ioat_raw_descriptor *raw = descs[xor_idx_to_desc >> idx & 1]; - - return raw->field[xor_idx_to_field[idx]]; -} - static void xor_set_src(struct ioat_raw_descriptor *descs[2], dma_addr_t addr, u32 offset, int idx) { @@ -135,12 +123,6 @@ static void pq_set_src(struct ioat_raw_descriptor *descs[2], pq->coef[idx] = coef; } -static int sed_get_pq16_pool_idx(int src_cnt) -{ - - return pq16_idx_to_sed[src_cnt]; -} - static bool is_jf_ioat(struct pci_dev *pdev) { switch (pdev->device) { @@ -272,7 +254,7 @@ ioat3_alloc_sed(struct ioatdma_device *device, unsigned int hw_pool) struct ioat_sed_ent *sed; gfp_t flags = __GFP_ZERO | GFP_ATOMIC; - sed = kmem_cache_alloc(device->sed_pool, flags); + sed = kmem_cache_alloc(ioat3_sed_cache, flags); if (!sed) return NULL; @@ -280,7 +262,7 @@ ioat3_alloc_sed(struct ioatdma_device *device, unsigned int hw_pool) sed->hw = dma_pool_alloc(device->sed_hw_pool[hw_pool], flags, &sed->dma); if (!sed->hw) { - kmem_cache_free(device->sed_pool, sed); + kmem_cache_free(ioat3_sed_cache, sed); return NULL; } @@ -293,165 +275,7 @@ static void ioat3_free_sed(struct ioatdma_device *device, struct ioat_sed_ent *s return; dma_pool_free(device->sed_hw_pool[sed->hw_pool], sed->hw, sed->dma); - kmem_cache_free(device->sed_pool, sed); -} - -static void ioat3_dma_unmap(struct ioat2_dma_chan *ioat, - struct ioat_ring_ent *desc, int idx) -{ - struct ioat_chan_common *chan = &ioat->base; - struct pci_dev *pdev = chan->device->pdev; - size_t len = desc->len; - size_t offset = len - desc->hw->size; - struct dma_async_tx_descriptor *tx = &desc->txd; - enum dma_ctrl_flags flags = tx->flags; - - switch (desc->hw->ctl_f.op) { - case IOAT_OP_COPY: - if (!desc->hw->ctl_f.null) /* skip 'interrupt' ops */ - ioat_dma_unmap(chan, flags, len, desc->hw); - break; - case IOAT_OP_XOR_VAL: - case IOAT_OP_XOR: { - struct ioat_xor_descriptor *xor = desc->xor; - struct ioat_ring_ent *ext; - struct ioat_xor_ext_descriptor *xor_ex = NULL; - int src_cnt = src_cnt_to_sw(xor->ctl_f.src_cnt); - struct ioat_raw_descriptor *descs[2]; - int i; - - if (src_cnt > 5) { - ext = ioat2_get_ring_ent(ioat, idx + 1); - xor_ex = ext->xor_ex; - } - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - descs[0] = (struct ioat_raw_descriptor *) xor; - descs[1] = (struct ioat_raw_descriptor *) xor_ex; - for (i = 0; i < src_cnt; i++) { - dma_addr_t src = xor_get_src(descs, i); - - ioat_unmap(pdev, src - offset, len, - PCI_DMA_TODEVICE, flags, 0); - } - - /* dest is a source in xor validate operations */ - if (xor->ctl_f.op == IOAT_OP_XOR_VAL) { - ioat_unmap(pdev, xor->dst_addr - offset, len, - PCI_DMA_TODEVICE, flags, 1); - break; - } - } - - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) - ioat_unmap(pdev, xor->dst_addr - offset, len, - PCI_DMA_FROMDEVICE, flags, 1); - break; - } - case IOAT_OP_PQ_VAL: - case IOAT_OP_PQ: { - struct ioat_pq_descriptor *pq = desc->pq; - struct ioat_ring_ent *ext; - struct ioat_pq_ext_descriptor *pq_ex = NULL; - int src_cnt = src_cnt_to_sw(pq->ctl_f.src_cnt); - struct ioat_raw_descriptor *descs[2]; - int i; - - if (src_cnt > 3) { - ext = ioat2_get_ring_ent(ioat, idx + 1); - pq_ex = ext->pq_ex; - } - - /* in the 'continue' case don't unmap the dests as sources */ - if (dmaf_p_disabled_continue(flags)) - src_cnt--; - else if (dmaf_continue(flags)) - src_cnt -= 3; - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - descs[0] = (struct ioat_raw_descriptor *) pq; - descs[1] = (struct ioat_raw_descriptor *) pq_ex; - for (i = 0; i < src_cnt; i++) { - dma_addr_t src = pq_get_src(descs, i); - - ioat_unmap(pdev, src - offset, len, - PCI_DMA_TODEVICE, flags, 0); - } - - /* the dests are sources in pq validate operations */ - if (pq->ctl_f.op == IOAT_OP_XOR_VAL) { - if (!(flags & DMA_PREP_PQ_DISABLE_P)) - ioat_unmap(pdev, pq->p_addr - offset, - len, PCI_DMA_TODEVICE, flags, 0); - if (!(flags & DMA_PREP_PQ_DISABLE_Q)) - ioat_unmap(pdev, pq->q_addr - offset, - len, PCI_DMA_TODEVICE, flags, 0); - break; - } - } - - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (!(flags & DMA_PREP_PQ_DISABLE_P)) - ioat_unmap(pdev, pq->p_addr - offset, len, - PCI_DMA_BIDIRECTIONAL, flags, 1); - if (!(flags & DMA_PREP_PQ_DISABLE_Q)) - ioat_unmap(pdev, pq->q_addr - offset, len, - PCI_DMA_BIDIRECTIONAL, flags, 1); - } - break; - } - case IOAT_OP_PQ_16S: - case IOAT_OP_PQ_VAL_16S: { - struct ioat_pq_descriptor *pq = desc->pq; - int src_cnt = src16_cnt_to_sw(pq->ctl_f.src_cnt); - struct ioat_raw_descriptor *descs[4]; - int i; - - /* in the 'continue' case don't unmap the dests as sources */ - if (dmaf_p_disabled_continue(flags)) - src_cnt--; - else if (dmaf_continue(flags)) - src_cnt -= 3; - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - descs[0] = (struct ioat_raw_descriptor *)pq; - descs[1] = (struct ioat_raw_descriptor *)(desc->sed->hw); - descs[2] = (struct ioat_raw_descriptor *)(&desc->sed->hw->b[0]); - for (i = 0; i < src_cnt; i++) { - dma_addr_t src = pq16_get_src(descs, i); - - ioat_unmap(pdev, src - offset, len, - PCI_DMA_TODEVICE, flags, 0); - } - - /* the dests are sources in pq validate operations */ - if (pq->ctl_f.op == IOAT_OP_XOR_VAL) { - if (!(flags & DMA_PREP_PQ_DISABLE_P)) - ioat_unmap(pdev, pq->p_addr - offset, - len, PCI_DMA_TODEVICE, - flags, 0); - if (!(flags & DMA_PREP_PQ_DISABLE_Q)) - ioat_unmap(pdev, pq->q_addr - offset, - len, PCI_DMA_TODEVICE, - flags, 0); - break; - } - } - - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - if (!(flags & DMA_PREP_PQ_DISABLE_P)) - ioat_unmap(pdev, pq->p_addr - offset, len, - PCI_DMA_BIDIRECTIONAL, flags, 1); - if (!(flags & DMA_PREP_PQ_DISABLE_Q)) - ioat_unmap(pdev, pq->q_addr - offset, len, - PCI_DMA_BIDIRECTIONAL, flags, 1); - } - break; - } - default: - dev_err(&pdev->dev, "%s: unknown op type: %#x\n", - __func__, desc->hw->ctl_f.op); - } + kmem_cache_free(ioat3_sed_cache, sed); } static bool desc_has_ext(struct ioat_ring_ent *desc) @@ -577,7 +401,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete) tx = &desc->txd; if (tx->cookie) { dma_cookie_complete(tx); - ioat3_dma_unmap(ioat, desc, idx + i); + dma_descriptor_unmap(tx); if (tx->callback) { tx->callback(tx->callback_param); tx->callback = NULL; @@ -807,7 +631,7 @@ ioat3_tx_status(struct dma_chan *c, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(c, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; ioat3_cleanup(ioat); @@ -1129,9 +953,6 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result, u8 op; int i, s, idx, num_descs; - /* this function only handles src_cnt 9 - 16 */ - BUG_ON(src_cnt < 9); - /* this function is only called with 9-16 sources */ op = result ? IOAT_OP_PQ_VAL_16S : IOAT_OP_PQ_16S; @@ -1159,8 +980,7 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result, descs[0] = (struct ioat_raw_descriptor *) pq; - desc->sed = ioat3_alloc_sed(device, - sed_get_pq16_pool_idx(src_cnt)); + desc->sed = ioat3_alloc_sed(device, (src_cnt-2) >> 3); if (!desc->sed) { dev_err(to_dev(chan), "%s: no free sed entries\n", __func__); @@ -1218,13 +1038,21 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result, return &desc->txd; } +static int src_cnt_flags(unsigned int src_cnt, unsigned long flags) +{ + if (dmaf_p_disabled_continue(flags)) + return src_cnt + 1; + else if (dmaf_continue(flags)) + return src_cnt + 3; + else + return src_cnt; +} + static struct dma_async_tx_descriptor * ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src, unsigned int src_cnt, const unsigned char *scf, size_t len, unsigned long flags) { - struct dma_device *dma = chan->device; - /* specify valid address for disabled result */ if (flags & DMA_PREP_PQ_DISABLE_P) dst[0] = dst[1]; @@ -1244,7 +1072,7 @@ ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src, single_source_coef[0] = scf[0]; single_source_coef[1] = 0; - return (src_cnt > 8) && (dma->max_pq > 8) ? + return src_cnt_flags(src_cnt, flags) > 8 ? __ioat3_prep_pq16_lock(chan, NULL, dst, single_source, 2, single_source_coef, len, flags) : @@ -1252,7 +1080,7 @@ ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src, single_source_coef, len, flags); } else { - return (src_cnt > 8) && (dma->max_pq > 8) ? + return src_cnt_flags(src_cnt, flags) > 8 ? __ioat3_prep_pq16_lock(chan, NULL, dst, src, src_cnt, scf, len, flags) : __ioat3_prep_pq_lock(chan, NULL, dst, src, src_cnt, @@ -1265,8 +1093,6 @@ ioat3_prep_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src, unsigned int src_cnt, const unsigned char *scf, size_t len, enum sum_check_flags *pqres, unsigned long flags) { - struct dma_device *dma = chan->device; - /* specify valid address for disabled result */ if (flags & DMA_PREP_PQ_DISABLE_P) pq[0] = pq[1]; @@ -1278,7 +1104,7 @@ ioat3_prep_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src, */ *pqres = 0; - return (src_cnt > 8) && (dma->max_pq > 8) ? + return src_cnt_flags(src_cnt, flags) > 8 ? __ioat3_prep_pq16_lock(chan, pqres, pq, src, src_cnt, scf, len, flags) : __ioat3_prep_pq_lock(chan, pqres, pq, src, src_cnt, scf, len, @@ -1289,7 +1115,6 @@ static struct dma_async_tx_descriptor * ioat3_prep_pqxor(struct dma_chan *chan, dma_addr_t dst, dma_addr_t *src, unsigned int src_cnt, size_t len, unsigned long flags) { - struct dma_device *dma = chan->device; unsigned char scf[src_cnt]; dma_addr_t pq[2]; @@ -1298,7 +1123,7 @@ ioat3_prep_pqxor(struct dma_chan *chan, dma_addr_t dst, dma_addr_t *src, flags |= DMA_PREP_PQ_DISABLE_Q; pq[1] = dst; /* specify valid address for disabled result */ - return (src_cnt > 8) && (dma->max_pq > 8) ? + return src_cnt_flags(src_cnt, flags) > 8 ? __ioat3_prep_pq16_lock(chan, NULL, pq, src, src_cnt, scf, len, flags) : __ioat3_prep_pq_lock(chan, NULL, pq, src, src_cnt, scf, len, @@ -1310,7 +1135,6 @@ ioat3_prep_pqxor_val(struct dma_chan *chan, dma_addr_t *src, unsigned int src_cnt, size_t len, enum sum_check_flags *result, unsigned long flags) { - struct dma_device *dma = chan->device; unsigned char scf[src_cnt]; dma_addr_t pq[2]; @@ -1324,8 +1148,7 @@ ioat3_prep_pqxor_val(struct dma_chan *chan, dma_addr_t *src, flags |= DMA_PREP_PQ_DISABLE_Q; pq[1] = pq[0]; /* specify valid address for disabled result */ - - return (src_cnt > 8) && (dma->max_pq > 8) ? + return src_cnt_flags(src_cnt, flags) > 8 ? __ioat3_prep_pq16_lock(chan, result, pq, &src[1], src_cnt - 1, scf, len, flags) : __ioat3_prep_pq_lock(chan, result, pq, &src[1], src_cnt - 1, @@ -1444,9 +1267,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) DMA_TO_DEVICE); tx = dma->device_prep_dma_xor(dma_chan, dest_dma, dma_srcs, IOAT_NUM_SRC_TEST, PAGE_SIZE, - DMA_PREP_INTERRUPT | - DMA_COMPL_SKIP_SRC_UNMAP | - DMA_COMPL_SKIP_DEST_UNMAP); + DMA_PREP_INTERRUPT); if (!tx) { dev_err(dev, "Self-test xor prep failed\n"); @@ -1468,7 +1289,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000)); - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) { + if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) { dev_err(dev, "Self-test xor timed out\n"); err = -ENODEV; goto dma_unmap; @@ -1507,9 +1328,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) DMA_TO_DEVICE); tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs, IOAT_NUM_SRC_TEST + 1, PAGE_SIZE, - &xor_val_result, DMA_PREP_INTERRUPT | - DMA_COMPL_SKIP_SRC_UNMAP | - DMA_COMPL_SKIP_DEST_UNMAP); + &xor_val_result, DMA_PREP_INTERRUPT); if (!tx) { dev_err(dev, "Self-test zero prep failed\n"); err = -ENODEV; @@ -1530,7 +1349,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000)); - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) { + if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) { dev_err(dev, "Self-test validate timed out\n"); err = -ENODEV; goto dma_unmap; @@ -1545,6 +1364,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) goto free_resources; } + memset(page_address(dest), 0, PAGE_SIZE); + /* test for non-zero parity sum */ op = IOAT_OP_XOR_VAL; @@ -1554,9 +1375,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) DMA_TO_DEVICE); tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs, IOAT_NUM_SRC_TEST + 1, PAGE_SIZE, - &xor_val_result, DMA_PREP_INTERRUPT | - DMA_COMPL_SKIP_SRC_UNMAP | - DMA_COMPL_SKIP_DEST_UNMAP); + &xor_val_result, DMA_PREP_INTERRUPT); if (!tx) { dev_err(dev, "Self-test 2nd zero prep failed\n"); err = -ENODEV; @@ -1577,7 +1396,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device) tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000)); - if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) { + if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) { dev_err(dev, "Self-test 2nd validate timed out\n"); err = -ENODEV; goto dma_unmap; @@ -1630,52 +1449,36 @@ static int ioat3_dma_self_test(struct ioatdma_device *device) static int ioat3_irq_reinit(struct ioatdma_device *device) { - int msixcnt = device->common.chancnt; struct pci_dev *pdev = device->pdev; - int i; - struct msix_entry *msix; - struct ioat_chan_common *chan; - int err = 0; + int irq = pdev->irq, i; + + if (!is_bwd_ioat(pdev)) + return 0; switch (device->irq_mode) { case IOAT_MSIX: + for (i = 0; i < device->common.chancnt; i++) { + struct msix_entry *msix = &device->msix_entries[i]; + struct ioat_chan_common *chan; - for (i = 0; i < msixcnt; i++) { - msix = &device->msix_entries[i]; chan = ioat_chan_by_index(device, i); devm_free_irq(&pdev->dev, msix->vector, chan); } pci_disable_msix(pdev); break; - - case IOAT_MSIX_SINGLE: - msix = &device->msix_entries[0]; - chan = ioat_chan_by_index(device, 0); - devm_free_irq(&pdev->dev, msix->vector, chan); - pci_disable_msix(pdev); - break; - case IOAT_MSI: - chan = ioat_chan_by_index(device, 0); - devm_free_irq(&pdev->dev, pdev->irq, chan); pci_disable_msi(pdev); - break; - + /* fall through */ case IOAT_INTX: - chan = ioat_chan_by_index(device, 0); - devm_free_irq(&pdev->dev, pdev->irq, chan); + devm_free_irq(&pdev->dev, irq, device); break; - default: return 0; } - device->irq_mode = IOAT_NOIRQ; - err = ioat_dma_setup_interrupts(device); - - return err; + return ioat_dma_setup_interrupts(device); } static int ioat3_reset_hw(struct ioat_chan_common *chan) @@ -1718,14 +1521,12 @@ static int ioat3_reset_hw(struct ioat_chan_common *chan) } err = ioat2_reset_sync(chan, msecs_to_jiffies(200)); - if (err) { - dev_err(&pdev->dev, "Failed to reset!\n"); - return err; - } - - if (device->irq_mode != IOAT_NOIRQ && is_bwd_ioat(pdev)) + if (!err) err = ioat3_irq_reinit(device); + if (err) + dev_err(&pdev->dev, "Failed to reset: %d\n", err); + return err; } @@ -1835,21 +1636,15 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca) char pool_name[14]; int i; - /* allocate sw descriptor pool for SED */ - device->sed_pool = kmem_cache_create("ioat_sed", - sizeof(struct ioat_sed_ent), 0, 0, NULL); - if (!device->sed_pool) - return -ENOMEM; - for (i = 0; i < MAX_SED_POOLS; i++) { snprintf(pool_name, 14, "ioat_hw%d_sed", i); /* allocate SED DMA pool */ - device->sed_hw_pool[i] = dma_pool_create(pool_name, + device->sed_hw_pool[i] = dmam_pool_create(pool_name, &pdev->dev, SED_SIZE * (i + 1), 64, 0); if (!device->sed_hw_pool[i]) - goto sed_pool_cleanup; + return -ENOMEM; } } @@ -1875,28 +1670,4 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca) device->dca = ioat3_dca_init(pdev, device->reg_base); return 0; - -sed_pool_cleanup: - if (device->sed_pool) { - int i; - kmem_cache_destroy(device->sed_pool); - - for (i = 0; i < MAX_SED_POOLS; i++) - if (device->sed_hw_pool[i]) - dma_pool_destroy(device->sed_hw_pool[i]); - } - - return -ENOMEM; -} - -void ioat3_dma_remove(struct ioatdma_device *device) -{ - if (device->sed_pool) { - int i; - kmem_cache_destroy(device->sed_pool); - - for (i = 0; i < MAX_SED_POOLS; i++) - if (device->sed_hw_pool[i]) - dma_pool_destroy(device->sed_hw_pool[i]); - } } diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c index 2c8d560e6334..1d051cd045db 100644 --- a/drivers/dma/ioat/pci.c +++ b/drivers/dma/ioat/pci.c @@ -123,6 +123,7 @@ module_param(ioat_dca_enabled, int, 0644); MODULE_PARM_DESC(ioat_dca_enabled, "control support of dca service (default: 1)"); struct kmem_cache *ioat2_cache; +struct kmem_cache *ioat3_sed_cache; #define DRV_NAME "ioatdma" @@ -207,9 +208,6 @@ static void ioat_remove(struct pci_dev *pdev) if (!device) return; - if (device->version >= IOAT_VER_3_0) - ioat3_dma_remove(device); - dev_err(&pdev->dev, "Removing dma and dca services\n"); if (device->dca) { unregister_dca_provider(device->dca, &pdev->dev); @@ -221,7 +219,7 @@ static void ioat_remove(struct pci_dev *pdev) static int __init ioat_init_module(void) { - int err; + int err = -ENOMEM; pr_info("%s: Intel(R) QuickData Technology Driver %s\n", DRV_NAME, IOAT_DMA_VERSION); @@ -231,9 +229,21 @@ static int __init ioat_init_module(void) if (!ioat2_cache) return -ENOMEM; + ioat3_sed_cache = KMEM_CACHE(ioat_sed_ent, 0); + if (!ioat3_sed_cache) + goto err_ioat2_cache; + err = pci_register_driver(&ioat_pci_driver); if (err) - kmem_cache_destroy(ioat2_cache); + goto err_ioat3_cache; + + return 0; + + err_ioat3_cache: + kmem_cache_destroy(ioat3_sed_cache); + + err_ioat2_cache: + kmem_cache_destroy(ioat2_cache); return err; } diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c index dd8b44a56e5d..c56137bc3868 100644 --- a/drivers/dma/iop-adma.c +++ b/drivers/dma/iop-adma.c @@ -61,80 +61,6 @@ static void iop_adma_free_slots(struct iop_adma_desc_slot *slot) } } -static void -iop_desc_unmap(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc) -{ - struct dma_async_tx_descriptor *tx = &desc->async_tx; - struct iop_adma_desc_slot *unmap = desc->group_head; - struct device *dev = &iop_chan->device->pdev->dev; - u32 len = unmap->unmap_len; - enum dma_ctrl_flags flags = tx->flags; - u32 src_cnt; - dma_addr_t addr; - dma_addr_t dest; - - src_cnt = unmap->unmap_src_cnt; - dest = iop_desc_get_dest_addr(unmap, iop_chan); - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - enum dma_data_direction dir; - - if (src_cnt > 1) /* is xor? */ - dir = DMA_BIDIRECTIONAL; - else - dir = DMA_FROM_DEVICE; - - dma_unmap_page(dev, dest, len, dir); - } - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - while (src_cnt--) { - addr = iop_desc_get_src_addr(unmap, iop_chan, src_cnt); - if (addr == dest) - continue; - dma_unmap_page(dev, addr, len, DMA_TO_DEVICE); - } - } - desc->group_head = NULL; -} - -static void -iop_desc_unmap_pq(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc) -{ - struct dma_async_tx_descriptor *tx = &desc->async_tx; - struct iop_adma_desc_slot *unmap = desc->group_head; - struct device *dev = &iop_chan->device->pdev->dev; - u32 len = unmap->unmap_len; - enum dma_ctrl_flags flags = tx->flags; - u32 src_cnt = unmap->unmap_src_cnt; - dma_addr_t pdest = iop_desc_get_dest_addr(unmap, iop_chan); - dma_addr_t qdest = iop_desc_get_qdest_addr(unmap, iop_chan); - int i; - - if (tx->flags & DMA_PREP_CONTINUE) - src_cnt -= 3; - - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP) && !desc->pq_check_result) { - dma_unmap_page(dev, pdest, len, DMA_BIDIRECTIONAL); - dma_unmap_page(dev, qdest, len, DMA_BIDIRECTIONAL); - } - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - dma_addr_t addr; - - for (i = 0; i < src_cnt; i++) { - addr = iop_desc_get_src_addr(unmap, iop_chan, i); - dma_unmap_page(dev, addr, len, DMA_TO_DEVICE); - } - if (desc->pq_check_result) { - dma_unmap_page(dev, pdest, len, DMA_TO_DEVICE); - dma_unmap_page(dev, qdest, len, DMA_TO_DEVICE); - } - } - - desc->group_head = NULL; -} - - static dma_cookie_t iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc, struct iop_adma_chan *iop_chan, dma_cookie_t cookie) @@ -152,15 +78,9 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc, if (tx->callback) tx->callback(tx->callback_param); - /* unmap dma addresses - * (unmap_single vs unmap_page?) - */ - if (desc->group_head && desc->unmap_len) { - if (iop_desc_is_pq(desc)) - iop_desc_unmap_pq(iop_chan, desc); - else - iop_desc_unmap(iop_chan, desc); - } + dma_descriptor_unmap(tx); + if (desc->group_head) + desc->group_head = NULL; } /* run dependent operations */ @@ -591,7 +511,6 @@ iop_adma_prep_dma_interrupt(struct dma_chan *chan, unsigned long flags) if (sw_desc) { grp_start = sw_desc->group_head; iop_desc_init_interrupt(grp_start, iop_chan); - grp_start->unmap_len = 0; sw_desc->async_tx.flags = flags; } spin_unlock_bh(&iop_chan->lock); @@ -623,8 +542,6 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest, iop_desc_set_byte_count(grp_start, iop_chan, len); iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest); iop_desc_set_memcpy_src_addr(grp_start, dma_src); - sw_desc->unmap_src_cnt = 1; - sw_desc->unmap_len = len; sw_desc->async_tx.flags = flags; } spin_unlock_bh(&iop_chan->lock); @@ -657,8 +574,6 @@ iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest, iop_desc_init_xor(grp_start, src_cnt, flags); iop_desc_set_byte_count(grp_start, iop_chan, len); iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest); - sw_desc->unmap_src_cnt = src_cnt; - sw_desc->unmap_len = len; sw_desc->async_tx.flags = flags; while (src_cnt--) iop_desc_set_xor_src_addr(grp_start, src_cnt, @@ -694,8 +609,6 @@ iop_adma_prep_dma_xor_val(struct dma_chan *chan, dma_addr_t *dma_src, grp_start->xor_check_result = result; pr_debug("\t%s: grp_start->xor_check_result: %p\n", __func__, grp_start->xor_check_result); - sw_desc->unmap_src_cnt = src_cnt; - sw_desc->unmap_len = len; sw_desc->async_tx.flags = flags; while (src_cnt--) iop_desc_set_zero_sum_src_addr(grp_start, src_cnt, @@ -748,8 +661,6 @@ iop_adma_prep_dma_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src, dst[0] = dst[1] & 0x7; iop_desc_set_pq_addr(g, dst); - sw_desc->unmap_src_cnt = src_cnt; - sw_desc->unmap_len = len; sw_desc->async_tx.flags = flags; for (i = 0; i < src_cnt; i++) iop_desc_set_pq_src_addr(g, i, src[i], scf[i]); @@ -804,8 +715,6 @@ iop_adma_prep_dma_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src, g->pq_check_result = pqres; pr_debug("\t%s: g->pq_check_result: %p\n", __func__, g->pq_check_result); - sw_desc->unmap_src_cnt = src_cnt+2; - sw_desc->unmap_len = len; sw_desc->async_tx.flags = flags; while (src_cnt--) iop_desc_set_pq_zero_sum_src_addr(g, src_cnt, @@ -864,7 +773,7 @@ static enum dma_status iop_adma_status(struct dma_chan *chan, int ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; iop_adma_slot_cleanup(iop_chan); @@ -983,7 +892,7 @@ static int iop_adma_memcpy_self_test(struct iop_adma_device *device) msleep(1); if (iop_adma_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test copy timed out, disabling\n"); err = -ENODEV; @@ -1083,7 +992,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device) msleep(8); if (iop_adma_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test xor timed out, disabling\n"); err = -ENODEV; @@ -1129,7 +1038,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device) iop_adma_issue_pending(dma_chan); msleep(8); - if (iop_adma_status(dma_chan, cookie, NULL) != DMA_SUCCESS) { + if (iop_adma_status(dma_chan, cookie, NULL) != DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test zero sum timed out, disabling\n"); err = -ENODEV; @@ -1158,7 +1067,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device) iop_adma_issue_pending(dma_chan); msleep(8); - if (iop_adma_status(dma_chan, cookie, NULL) != DMA_SUCCESS) { + if (iop_adma_status(dma_chan, cookie, NULL) != DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test non-zero sum timed out, disabling\n"); err = -ENODEV; @@ -1254,7 +1163,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device) msleep(8); if (iop_adma_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dev, "Self-test pq timed out, disabling\n"); err = -ENODEV; goto free_resources; @@ -1291,7 +1200,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device) msleep(8); if (iop_adma_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dev, "Self-test pq-zero-sum timed out, disabling\n"); err = -ENODEV; goto free_resources; @@ -1323,7 +1232,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device) msleep(8); if (iop_adma_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dev, "Self-test !pq-zero-sum timed out, disabling\n"); err = -ENODEV; goto free_resources; diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c index cb9c0bc317e8..128ca143486d 100644 --- a/drivers/dma/ipu/ipu_idmac.c +++ b/drivers/dma/ipu/ipu_idmac.c @@ -1232,8 +1232,10 @@ static irqreturn_t idmac_interrupt(int irq, void *dev_id) desc = list_entry(ichan->queue.next, struct idmac_tx_desc, list); descnew = desc; - dev_dbg(dev, "IDMAC irq %d, dma 0x%08x, next dma 0x%08x, current %d, curbuf 0x%08x\n", - irq, sg_dma_address(*sg), sgnext ? sg_dma_address(sgnext) : 0, ichan->active_buffer, curbuf); + dev_dbg(dev, "IDMAC irq %d, dma %#llx, next dma %#llx, current %d, curbuf %#x\n", + irq, (u64)sg_dma_address(*sg), + sgnext ? (u64)sg_dma_address(sgnext) : 0, + ichan->active_buffer, curbuf); /* Find the descriptor of sgnext */ sgnew = idmac_sg_next(ichan, &descnew, *sg); diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index a2c330f5f952..e26075408e9b 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -344,7 +344,7 @@ static enum dma_status k3_dma_tx_status(struct dma_chan *chan, size_t bytes = 0; ret = dma_cookie_status(&c->vc.chan, cookie, state); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; spin_lock_irqsave(&c->vc.lock, flags); @@ -693,7 +693,7 @@ static int k3_dma_probe(struct platform_device *op) irq = platform_get_irq(op, 0); ret = devm_request_irq(&op->dev, irq, - k3_dma_int_handler, IRQF_DISABLED, DRIVER_NAME, d); + k3_dma_int_handler, 0, DRIVER_NAME, d); if (ret) return ret; diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index ff8d7827f8cb..dcb1e05149a7 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -798,8 +798,7 @@ static void dma_do_tasklet(unsigned long data) * move the descriptors to a temporary list so we can drop * the lock during the entire cleanup operation */ - list_del(&desc->node); - list_add(&desc->node, &chain_cleanup); + list_move(&desc->node, &chain_cleanup); /* * Look for the first list entry which has the ENDIRQEN flag @@ -863,7 +862,7 @@ static int mmp_pdma_chan_init(struct mmp_pdma_device *pdev, if (irq) { ret = devm_request_irq(pdev->dev, irq, - mmp_pdma_chan_handler, IRQF_DISABLED, "pdma", phy); + mmp_pdma_chan_handler, 0, "pdma", phy); if (ret) { dev_err(pdev->dev, "channel request irq fail!\n"); return ret; @@ -970,7 +969,7 @@ static int mmp_pdma_probe(struct platform_device *op) /* all chan share one irq, demux inside */ irq = platform_get_irq(op, 0); ret = devm_request_irq(pdev->dev, irq, - mmp_pdma_int_handler, IRQF_DISABLED, "pdma", pdev); + mmp_pdma_int_handler, 0, "pdma", pdev); if (ret) return ret; } diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index d3b6358e5a27..3ddacc14a736 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -62,6 +62,11 @@ #define TDCR_BURSTSZ_16B (0x3 << 6) #define TDCR_BURSTSZ_32B (0x6 << 6) #define TDCR_BURSTSZ_64B (0x7 << 6) +#define TDCR_BURSTSZ_SQU_1B (0x5 << 6) +#define TDCR_BURSTSZ_SQU_2B (0x6 << 6) +#define TDCR_BURSTSZ_SQU_4B (0x0 << 6) +#define TDCR_BURSTSZ_SQU_8B (0x1 << 6) +#define TDCR_BURSTSZ_SQU_16B (0x3 << 6) #define TDCR_BURSTSZ_SQU_32B (0x7 << 6) #define TDCR_BURSTSZ_128B (0x5 << 6) #define TDCR_DSTDIR_MSK (0x3 << 4) /* Dst Direction */ @@ -158,7 +163,7 @@ static void mmp_tdma_disable_chan(struct mmp_tdma_chan *tdmac) /* disable irq */ writel(0, tdmac->reg_base + TDIMR); - tdmac->status = DMA_SUCCESS; + tdmac->status = DMA_COMPLETE; } static void mmp_tdma_resume_chan(struct mmp_tdma_chan *tdmac) @@ -228,8 +233,31 @@ static int mmp_tdma_config_chan(struct mmp_tdma_chan *tdmac) return -EINVAL; } } else if (tdmac->type == PXA910_SQU) { - tdcr |= TDCR_BURSTSZ_SQU_32B; tdcr |= TDCR_SSPMOD; + + switch (tdmac->burst_sz) { + case 1: + tdcr |= TDCR_BURSTSZ_SQU_1B; + break; + case 2: + tdcr |= TDCR_BURSTSZ_SQU_2B; + break; + case 4: + tdcr |= TDCR_BURSTSZ_SQU_4B; + break; + case 8: + tdcr |= TDCR_BURSTSZ_SQU_8B; + break; + case 16: + tdcr |= TDCR_BURSTSZ_SQU_16B; + break; + case 32: + tdcr |= TDCR_BURSTSZ_SQU_32B; + break; + default: + dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n"); + return -EINVAL; + } } writel(tdcr, tdmac->reg_base + TDCR); @@ -324,7 +352,7 @@ static int mmp_tdma_alloc_chan_resources(struct dma_chan *chan) if (tdmac->irq) { ret = devm_request_irq(tdmac->dev, tdmac->irq, - mmp_tdma_chan_handler, IRQF_DISABLED, "tdma", tdmac); + mmp_tdma_chan_handler, 0, "tdma", tdmac); if (ret) return ret; } @@ -365,7 +393,7 @@ static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic( int num_periods = buf_len / period_len; int i = 0, buf = 0; - if (tdmac->status != DMA_SUCCESS) + if (tdmac->status != DMA_COMPLETE) return NULL; if (period_len > TDMA_MAX_XFER_BYTES) { @@ -499,7 +527,7 @@ static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev, tdmac->idx = idx; tdmac->type = type; tdmac->reg_base = (unsigned long)tdev->base + idx * 4; - tdmac->status = DMA_SUCCESS; + tdmac->status = DMA_COMPLETE; tdev->tdmac[tdmac->idx] = tdmac; tasklet_init(&tdmac->tasklet, dma_do_tasklet, (unsigned long)tdmac); @@ -554,7 +582,7 @@ static int mmp_tdma_probe(struct platform_device *pdev) if (irq_num != chan_num) { irq = platform_get_irq(pdev, 0); ret = devm_request_irq(&pdev->dev, irq, - mmp_tdma_int_handler, IRQF_DISABLED, "tdma", tdev); + mmp_tdma_int_handler, 0, "tdma", tdev); if (ret) return ret; } diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index 536dcb8ba5fd..7807f0ef4e20 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -60,14 +60,6 @@ static u32 mv_desc_get_dest_addr(struct mv_xor_desc_slot *desc) return hw_desc->phy_dest_addr; } -static u32 mv_desc_get_src_addr(struct mv_xor_desc_slot *desc, - int src_idx) -{ - struct mv_xor_desc *hw_desc = desc->hw_desc; - return hw_desc->phy_src_addr[mv_phy_src_idx(src_idx)]; -} - - static void mv_desc_set_byte_count(struct mv_xor_desc_slot *desc, u32 byte_count) { @@ -278,42 +270,9 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc, desc->async_tx.callback( desc->async_tx.callback_param); - /* unmap dma addresses - * (unmap_single vs unmap_page?) - */ - if (desc->group_head && desc->unmap_len) { - struct mv_xor_desc_slot *unmap = desc->group_head; - struct device *dev = mv_chan_to_devp(mv_chan); - u32 len = unmap->unmap_len; - enum dma_ctrl_flags flags = desc->async_tx.flags; - u32 src_cnt; - dma_addr_t addr; - dma_addr_t dest; - - src_cnt = unmap->unmap_src_cnt; - dest = mv_desc_get_dest_addr(unmap); - if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - enum dma_data_direction dir; - - if (src_cnt > 1) /* is xor ? */ - dir = DMA_BIDIRECTIONAL; - else - dir = DMA_FROM_DEVICE; - dma_unmap_page(dev, dest, len, dir); - } - - if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - while (src_cnt--) { - addr = mv_desc_get_src_addr(unmap, - src_cnt); - if (addr == dest) - continue; - dma_unmap_page(dev, addr, len, - DMA_TO_DEVICE); - } - } + dma_descriptor_unmap(&desc->async_tx); + if (desc->group_head) desc->group_head = NULL; - } } /* run dependent operations */ @@ -749,7 +708,7 @@ static enum dma_status mv_xor_status(struct dma_chan *chan, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) { + if (ret == DMA_COMPLETE) { mv_xor_clean_completed_slots(mv_chan); return ret; } @@ -874,7 +833,7 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan) msleep(1); if (mv_xor_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test copy timed out, disabling\n"); err = -ENODEV; @@ -968,7 +927,7 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan) msleep(8); if (mv_xor_status(dma_chan, cookie, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { dev_err(dma_chan->device->dev, "Self-test xor timed out, disabling\n"); err = -ENODEV; @@ -1076,10 +1035,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev, } mv_chan->mmr_base = xordev->xor_base; - if (!mv_chan->mmr_base) { - ret = -ENOMEM; - goto err_free_dma; - } + mv_chan->mmr_high_base = xordev->xor_high_base; tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long) mv_chan); @@ -1138,7 +1094,7 @@ static void mv_xor_conf_mbus_windows(struct mv_xor_device *xordev, const struct mbus_dram_target_info *dram) { - void __iomem *base = xordev->xor_base; + void __iomem *base = xordev->xor_high_base; u32 win_enable = 0; int i; diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index 06b067f24c9b..d0749229c875 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -34,13 +34,13 @@ #define XOR_OPERATION_MODE_MEMCPY 2 #define XOR_DESCRIPTOR_SWAP BIT(14) -#define XOR_CURR_DESC(chan) (chan->mmr_base + 0x210 + (chan->idx * 4)) -#define XOR_NEXT_DESC(chan) (chan->mmr_base + 0x200 + (chan->idx * 4)) -#define XOR_BYTE_COUNT(chan) (chan->mmr_base + 0x220 + (chan->idx * 4)) -#define XOR_DEST_POINTER(chan) (chan->mmr_base + 0x2B0 + (chan->idx * 4)) -#define XOR_BLOCK_SIZE(chan) (chan->mmr_base + 0x2C0 + (chan->idx * 4)) -#define XOR_INIT_VALUE_LOW(chan) (chan->mmr_base + 0x2E0) -#define XOR_INIT_VALUE_HIGH(chan) (chan->mmr_base + 0x2E4) +#define XOR_CURR_DESC(chan) (chan->mmr_high_base + 0x10 + (chan->idx * 4)) +#define XOR_NEXT_DESC(chan) (chan->mmr_high_base + 0x00 + (chan->idx * 4)) +#define XOR_BYTE_COUNT(chan) (chan->mmr_high_base + 0x20 + (chan->idx * 4)) +#define XOR_DEST_POINTER(chan) (chan->mmr_high_base + 0xB0 + (chan->idx * 4)) +#define XOR_BLOCK_SIZE(chan) (chan->mmr_high_base + 0xC0 + (chan->idx * 4)) +#define XOR_INIT_VALUE_LOW(chan) (chan->mmr_high_base + 0xE0) +#define XOR_INIT_VALUE_HIGH(chan) (chan->mmr_high_base + 0xE4) #define XOR_CONFIG(chan) (chan->mmr_base + 0x10 + (chan->idx * 4)) #define XOR_ACTIVATION(chan) (chan->mmr_base + 0x20 + (chan->idx * 4)) @@ -50,11 +50,11 @@ #define XOR_ERROR_ADDR(chan) (chan->mmr_base + 0x60) #define XOR_INTR_MASK_VALUE 0x3F5 -#define WINDOW_BASE(w) (0x250 + ((w) << 2)) -#define WINDOW_SIZE(w) (0x270 + ((w) << 2)) -#define WINDOW_REMAP_HIGH(w) (0x290 + ((w) << 2)) -#define WINDOW_BAR_ENABLE(chan) (0x240 + ((chan) << 2)) -#define WINDOW_OVERRIDE_CTRL(chan) (0x2A0 + ((chan) << 2)) +#define WINDOW_BASE(w) (0x50 + ((w) << 2)) +#define WINDOW_SIZE(w) (0x70 + ((w) << 2)) +#define WINDOW_REMAP_HIGH(w) (0x90 + ((w) << 2)) +#define WINDOW_BAR_ENABLE(chan) (0x40 + ((chan) << 2)) +#define WINDOW_OVERRIDE_CTRL(chan) (0xA0 + ((chan) << 2)) struct mv_xor_device { void __iomem *xor_base; @@ -82,6 +82,7 @@ struct mv_xor_chan { int pending; spinlock_t lock; /* protects the descriptor slot pool */ void __iomem *mmr_base; + void __iomem *mmr_high_base; unsigned int idx; int irq; enum dma_transaction_type current_type; diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index ccd13df841db..ead491346da7 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -27,6 +27,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_dma.h> +#include <linux/list.h> #include <asm/irq.h> @@ -57,6 +58,9 @@ (((dma_is_apbh(d) && apbh_is_old(d)) ? 0x050 : 0x110) + (n) * 0x70) #define HW_APBHX_CHn_SEMA(d, n) \ (((dma_is_apbh(d) && apbh_is_old(d)) ? 0x080 : 0x140) + (n) * 0x70) +#define HW_APBHX_CHn_BAR(d, n) \ + (((dma_is_apbh(d) && apbh_is_old(d)) ? 0x070 : 0x130) + (n) * 0x70) +#define HW_APBX_CHn_DEBUG1(d, n) (0x150 + (n) * 0x70) /* * ccw bits definitions @@ -115,7 +119,9 @@ struct mxs_dma_chan { int desc_count; enum dma_status status; unsigned int flags; + bool reset; #define MXS_DMA_SG_LOOP (1 << 0) +#define MXS_DMA_USE_SEMAPHORE (1 << 1) }; #define MXS_DMA_CHANNELS 16 @@ -201,12 +207,47 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan) struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; int chan_id = mxs_chan->chan.chan_id; - if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma)) + /* + * mxs dma channel resets can cause a channel stall. To recover from a + * channel stall, we have to reset the whole DMA engine. To avoid this, + * we use cyclic DMA with semaphores, that are enhanced in + * mxs_dma_int_handler. To reset the channel, we can simply stop writing + * into the semaphore counter. + */ + if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE && + mxs_chan->flags & MXS_DMA_SG_LOOP) { + mxs_chan->reset = true; + } else if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma)) { writel(1 << (chan_id + BP_APBH_CTRL0_RESET_CHANNEL), mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET); - else + } else { + unsigned long elapsed = 0; + const unsigned long max_wait = 50000; /* 50ms */ + void __iomem *reg_dbg1 = mxs_dma->base + + HW_APBX_CHn_DEBUG1(mxs_dma, chan_id); + + /* + * On i.MX28 APBX, the DMA channel can stop working if we reset + * the channel while it is in READ_FLUSH (0x08) state. + * We wait here until we leave the state. Then we trigger the + * reset. Waiting a maximum of 50ms, the kernel shouldn't crash + * because of this. + */ + while ((readl(reg_dbg1) & 0xf) == 0x8 && elapsed < max_wait) { + udelay(100); + elapsed += 100; + } + + if (elapsed >= max_wait) + dev_err(&mxs_chan->mxs_dma->pdev->dev, + "Failed waiting for the DMA channel %d to leave state READ_FLUSH, trying to reset channel in READ_FLUSH state now\n", + chan_id); + writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL), mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET); + } + + mxs_chan->status = DMA_COMPLETE; } static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan) @@ -219,12 +260,21 @@ static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan) mxs_dma->base + HW_APBHX_CHn_NXTCMDAR(mxs_dma, chan_id)); /* write 1 to SEMA to kick off the channel */ - writel(1, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id)); + if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE && + mxs_chan->flags & MXS_DMA_SG_LOOP) { + /* A cyclic DMA consists of at least 2 segments, so initialize + * the semaphore with 2 so we have enough time to add 1 to the + * semaphore if we need to */ + writel(2, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id)); + } else { + writel(1, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id)); + } + mxs_chan->reset = false; } static void mxs_dma_disable_chan(struct mxs_dma_chan *mxs_chan) { - mxs_chan->status = DMA_SUCCESS; + mxs_chan->status = DMA_COMPLETE; } static void mxs_dma_pause_chan(struct mxs_dma_chan *mxs_chan) @@ -272,58 +322,88 @@ static void mxs_dma_tasklet(unsigned long data) mxs_chan->desc.callback(mxs_chan->desc.callback_param); } +static int mxs_dma_irq_to_chan(struct mxs_dma_engine *mxs_dma, int irq) +{ + int i; + + for (i = 0; i != mxs_dma->nr_channels; ++i) + if (mxs_dma->mxs_chans[i].chan_irq == irq) + return i; + + return -EINVAL; +} + static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id) { struct mxs_dma_engine *mxs_dma = dev_id; - u32 stat1, stat2; + struct mxs_dma_chan *mxs_chan; + u32 completed; + u32 err; + int chan = mxs_dma_irq_to_chan(mxs_dma, irq); + + if (chan < 0) + return IRQ_NONE; /* completion status */ - stat1 = readl(mxs_dma->base + HW_APBHX_CTRL1); - stat1 &= MXS_DMA_CHANNELS_MASK; - writel(stat1, mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_CLR); + completed = readl(mxs_dma->base + HW_APBHX_CTRL1); + completed = (completed >> chan) & 0x1; + + /* Clear interrupt */ + writel((1 << chan), + mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_CLR); /* error status */ - stat2 = readl(mxs_dma->base + HW_APBHX_CTRL2); - writel(stat2, mxs_dma->base + HW_APBHX_CTRL2 + STMP_OFFSET_REG_CLR); + err = readl(mxs_dma->base + HW_APBHX_CTRL2); + err &= (1 << (MXS_DMA_CHANNELS + chan)) | (1 << chan); + + /* + * error status bit is in the upper 16 bits, error irq bit in the lower + * 16 bits. We transform it into a simpler error code: + * err: 0x00 = no error, 0x01 = TERMINATION, 0x02 = BUS_ERROR + */ + err = (err >> (MXS_DMA_CHANNELS + chan)) + (err >> chan); + + /* Clear error irq */ + writel((1 << chan), + mxs_dma->base + HW_APBHX_CTRL2 + STMP_OFFSET_REG_CLR); /* * When both completion and error of termination bits set at the * same time, we do not take it as an error. IOW, it only becomes - * an error we need to handle here in case of either it's (1) a bus - * error or (2) a termination error with no completion. + * an error we need to handle here in case of either it's a bus + * error or a termination error with no completion. 0x01 is termination + * error, so we can subtract err & completed to get the real error case. */ - stat2 = ((stat2 >> MXS_DMA_CHANNELS) & stat2) | /* (1) */ - (~(stat2 >> MXS_DMA_CHANNELS) & stat2 & ~stat1); /* (2) */ - - /* combine error and completion status for checking */ - stat1 = (stat2 << MXS_DMA_CHANNELS) | stat1; - while (stat1) { - int channel = fls(stat1) - 1; - struct mxs_dma_chan *mxs_chan = - &mxs_dma->mxs_chans[channel % MXS_DMA_CHANNELS]; - - if (channel >= MXS_DMA_CHANNELS) { - dev_dbg(mxs_dma->dma_device.dev, - "%s: error in channel %d\n", __func__, - channel - MXS_DMA_CHANNELS); - mxs_chan->status = DMA_ERROR; - mxs_dma_reset_chan(mxs_chan); - } else { - if (mxs_chan->flags & MXS_DMA_SG_LOOP) - mxs_chan->status = DMA_IN_PROGRESS; - else - mxs_chan->status = DMA_SUCCESS; - } + err -= err & completed; - stat1 &= ~(1 << channel); + mxs_chan = &mxs_dma->mxs_chans[chan]; - if (mxs_chan->status == DMA_SUCCESS) - dma_cookie_complete(&mxs_chan->desc); + if (err) { + dev_dbg(mxs_dma->dma_device.dev, + "%s: error in channel %d\n", __func__, + chan); + mxs_chan->status = DMA_ERROR; + mxs_dma_reset_chan(mxs_chan); + } else if (mxs_chan->status != DMA_COMPLETE) { + if (mxs_chan->flags & MXS_DMA_SG_LOOP) { + mxs_chan->status = DMA_IN_PROGRESS; + if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE) + writel(1, mxs_dma->base + + HW_APBHX_CHn_SEMA(mxs_dma, chan)); + } else { + mxs_chan->status = DMA_COMPLETE; + } + } - /* schedule tasklet on this channel */ - tasklet_schedule(&mxs_chan->tasklet); + if (mxs_chan->status == DMA_COMPLETE) { + if (mxs_chan->reset) + return IRQ_HANDLED; + dma_cookie_complete(&mxs_chan->desc); } + /* schedule tasklet on this channel */ + tasklet_schedule(&mxs_chan->tasklet); + return IRQ_HANDLED; } @@ -523,6 +603,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic( mxs_chan->status = DMA_IN_PROGRESS; mxs_chan->flags |= MXS_DMA_SG_LOOP; + mxs_chan->flags |= MXS_DMA_USE_SEMAPHORE; if (num_periods > NUM_CCW) { dev_err(mxs_dma->dma_device.dev, @@ -554,6 +635,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic( ccw->bits |= CCW_IRQ; ccw->bits |= CCW_HALT_ON_TERM; ccw->bits |= CCW_TERM_FLUSH; + ccw->bits |= CCW_DEC_SEM; ccw->bits |= BF_CCW(direction == DMA_DEV_TO_MEM ? MXS_DMA_CMD_WRITE : MXS_DMA_CMD_READ, COMMAND); @@ -599,8 +681,24 @@ static enum dma_status mxs_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, struct dma_tx_state *txstate) { struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan); + struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; + u32 residue = 0; + + if (mxs_chan->status == DMA_IN_PROGRESS && + mxs_chan->flags & MXS_DMA_SG_LOOP) { + struct mxs_dma_ccw *last_ccw; + u32 bar; + + last_ccw = &mxs_chan->ccw[mxs_chan->desc_count - 1]; + residue = last_ccw->xfer_bytes + last_ccw->bufaddr; + + bar = readl(mxs_dma->base + + HW_APBHX_CHn_BAR(mxs_dma, chan->chan_id)); + residue -= bar; + } - dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie, 0); + dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie, + residue); return mxs_chan->status; } diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index ec3fc4fd9160..2f66cf4e54fe 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -248,7 +248,7 @@ static enum dma_status omap_dma_tx_status(struct dma_chan *chan, unsigned long flags; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS || !txstate) + if (ret == DMA_COMPLETE || !txstate) return ret; spin_lock_irqsave(&c->vc.lock, flags); diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index df8b10fd1726..cdf0483b8f2d 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2268,6 +2268,8 @@ static void pl330_tasklet(unsigned long data) list_move_tail(&desc->node, &pch->dmac->desc_pool); } + dma_descriptor_unmap(&desc->txd); + if (callback) { spin_unlock_irqrestore(&pch->lock, flags); callback(callback_param); @@ -2314,7 +2316,7 @@ bool pl330_filter(struct dma_chan *chan, void *param) return false; peri_id = chan->private; - return *peri_id == (unsigned)param; + return *peri_id == (unsigned long)param; } EXPORT_SYMBOL(pl330_filter); @@ -2926,16 +2928,23 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) amba_set_drvdata(adev, pdmac); - irq = adev->irq[0]; - ret = request_irq(irq, pl330_irq_handler, 0, - dev_name(&adev->dev), pi); - if (ret) - return ret; + for (i = 0; i < AMBA_NR_IRQS; i++) { + irq = adev->irq[i]; + if (irq) { + ret = devm_request_irq(&adev->dev, irq, + pl330_irq_handler, 0, + dev_name(&adev->dev), pi); + if (ret) + return ret; + } else { + break; + } + } pi->pcfg.periph_id = adev->periphid; ret = pl330_add(pi); if (ret) - goto probe_err1; + return ret; INIT_LIST_HEAD(&pdmac->desc_pool); spin_lock_init(&pdmac->pool_lock); @@ -3033,8 +3042,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) return 0; probe_err3: - amba_set_drvdata(adev, NULL); - /* Idle the DMAC */ list_for_each_entry_safe(pch, _p, &pdmac->ddma.channels, chan.device_node) { @@ -3048,8 +3055,6 @@ probe_err3: } probe_err2: pl330_del(pi); -probe_err1: - free_irq(irq, pi); return ret; } @@ -3059,7 +3064,6 @@ static int pl330_remove(struct amba_device *adev) struct dma_pl330_dmac *pdmac = amba_get_drvdata(adev); struct dma_pl330_chan *pch, *_p; struct pl330_info *pi; - int irq; if (!pdmac) return 0; @@ -3068,7 +3072,6 @@ static int pl330_remove(struct amba_device *adev) of_dma_controller_free(adev->dev.of_node); dma_async_device_unregister(&pdmac->ddma); - amba_set_drvdata(adev, NULL); /* Idle the DMAC */ list_for_each_entry_safe(pch, _p, &pdmac->ddma.channels, @@ -3086,9 +3089,6 @@ static int pl330_remove(struct amba_device *adev) pl330_del(pi); - irq = adev->irq[0]; - free_irq(irq, pi); - return 0; } diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c index e24b5ef486b5..8da48c6b2a38 100644 --- a/drivers/dma/ppc4xx/adma.c +++ b/drivers/dma/ppc4xx/adma.c @@ -804,218 +804,6 @@ static void ppc440spe_desc_set_link(struct ppc440spe_adma_chan *chan, } /** - * ppc440spe_desc_get_src_addr - extract the source address from the descriptor - */ -static u32 ppc440spe_desc_get_src_addr(struct ppc440spe_adma_desc_slot *desc, - struct ppc440spe_adma_chan *chan, int src_idx) -{ - struct dma_cdb *dma_hw_desc; - struct xor_cb *xor_hw_desc; - - switch (chan->device->id) { - case PPC440SPE_DMA0_ID: - case PPC440SPE_DMA1_ID: - dma_hw_desc = desc->hw_desc; - /* May have 0, 1, 2, or 3 sources */ - switch (dma_hw_desc->opc) { - case DMA_CDB_OPC_NO_OP: - case DMA_CDB_OPC_DFILL128: - return 0; - case DMA_CDB_OPC_DCHECK128: - if (unlikely(src_idx)) { - printk(KERN_ERR "%s: try to get %d source for" - " DCHECK128\n", __func__, src_idx); - BUG(); - } - return le32_to_cpu(dma_hw_desc->sg1l); - case DMA_CDB_OPC_MULTICAST: - case DMA_CDB_OPC_MV_SG1_SG2: - if (unlikely(src_idx > 2)) { - printk(KERN_ERR "%s: try to get %d source from" - " DMA descr\n", __func__, src_idx); - BUG(); - } - if (src_idx) { - if (le32_to_cpu(dma_hw_desc->sg1u) & - DMA_CUED_XOR_WIN_MSK) { - u8 region; - - if (src_idx == 1) - return le32_to_cpu( - dma_hw_desc->sg1l) + - desc->unmap_len; - - region = (le32_to_cpu( - dma_hw_desc->sg1u)) >> - DMA_CUED_REGION_OFF; - - region &= DMA_CUED_REGION_MSK; - switch (region) { - case DMA_RXOR123: - return le32_to_cpu( - dma_hw_desc->sg1l) + - (desc->unmap_len << 1); - case DMA_RXOR124: - return le32_to_cpu( - dma_hw_desc->sg1l) + - (desc->unmap_len * 3); - case DMA_RXOR125: - return le32_to_cpu( - dma_hw_desc->sg1l) + - (desc->unmap_len << 2); - default: - printk(KERN_ERR - "%s: try to" - " get src3 for region %02x" - "PPC440SPE_DESC_RXOR12?\n", - __func__, region); - BUG(); - } - } else { - printk(KERN_ERR - "%s: try to get %d" - " source for non-cued descr\n", - __func__, src_idx); - BUG(); - } - } - return le32_to_cpu(dma_hw_desc->sg1l); - default: - printk(KERN_ERR "%s: unknown OPC 0x%02x\n", - __func__, dma_hw_desc->opc); - BUG(); - } - return le32_to_cpu(dma_hw_desc->sg1l); - case PPC440SPE_XOR_ID: - /* May have up to 16 sources */ - xor_hw_desc = desc->hw_desc; - return xor_hw_desc->ops[src_idx].l; - } - return 0; -} - -/** - * ppc440spe_desc_get_dest_addr - extract the destination address from the - * descriptor - */ -static u32 ppc440spe_desc_get_dest_addr(struct ppc440spe_adma_desc_slot *desc, - struct ppc440spe_adma_chan *chan, int idx) -{ - struct dma_cdb *dma_hw_desc; - struct xor_cb *xor_hw_desc; - - switch (chan->device->id) { - case PPC440SPE_DMA0_ID: - case PPC440SPE_DMA1_ID: - dma_hw_desc = desc->hw_desc; - - if (likely(!idx)) - return le32_to_cpu(dma_hw_desc->sg2l); - return le32_to_cpu(dma_hw_desc->sg3l); - case PPC440SPE_XOR_ID: - xor_hw_desc = desc->hw_desc; - return xor_hw_desc->cbtal; - } - return 0; -} - -/** - * ppc440spe_desc_get_src_num - extract the number of source addresses from - * the descriptor - */ -static u32 ppc440spe_desc_get_src_num(struct ppc440spe_adma_desc_slot *desc, - struct ppc440spe_adma_chan *chan) -{ - struct dma_cdb *dma_hw_desc; - struct xor_cb *xor_hw_desc; - - switch (chan->device->id) { - case PPC440SPE_DMA0_ID: - case PPC440SPE_DMA1_ID: - dma_hw_desc = desc->hw_desc; - - switch (dma_hw_desc->opc) { - case DMA_CDB_OPC_NO_OP: - case DMA_CDB_OPC_DFILL128: - return 0; - case DMA_CDB_OPC_DCHECK128: - return 1; - case DMA_CDB_OPC_MV_SG1_SG2: - case DMA_CDB_OPC_MULTICAST: - /* - * Only for RXOR operations we have more than - * one source - */ - if (le32_to_cpu(dma_hw_desc->sg1u) & - DMA_CUED_XOR_WIN_MSK) { - /* RXOR op, there are 2 or 3 sources */ - if (((le32_to_cpu(dma_hw_desc->sg1u) >> - DMA_CUED_REGION_OFF) & - DMA_CUED_REGION_MSK) == DMA_RXOR12) { - /* RXOR 1-2 */ - return 2; - } else { - /* RXOR 1-2-3/1-2-4/1-2-5 */ - return 3; - } - } - return 1; - default: - printk(KERN_ERR "%s: unknown OPC 0x%02x\n", - __func__, dma_hw_desc->opc); - BUG(); - } - case PPC440SPE_XOR_ID: - /* up to 16 sources */ - xor_hw_desc = desc->hw_desc; - return xor_hw_desc->cbc & XOR_CDCR_OAC_MSK; - default: - BUG(); - } - return 0; -} - -/** - * ppc440spe_desc_get_dst_num - get the number of destination addresses in - * this descriptor - */ -static u32 ppc440spe_desc_get_dst_num(struct ppc440spe_adma_desc_slot *desc, - struct ppc440spe_adma_chan *chan) -{ - struct dma_cdb *dma_hw_desc; - - switch (chan->device->id) { - case PPC440SPE_DMA0_ID: - case PPC440SPE_DMA1_ID: - /* May be 1 or 2 destinations */ - dma_hw_desc = desc->hw_desc; - switch (dma_hw_desc->opc) { - case DMA_CDB_OPC_NO_OP: - case DMA_CDB_OPC_DCHECK128: - return 0; - case DMA_CDB_OPC_MV_SG1_SG2: - case DMA_CDB_OPC_DFILL128: - return 1; - case DMA_CDB_OPC_MULTICAST: - if (desc->dst_cnt == 2) - return 2; - else - return 1; - default: - printk(KERN_ERR "%s: unknown OPC 0x%02x\n", - __func__, dma_hw_desc->opc); - BUG(); - } - case PPC440SPE_XOR_ID: - /* Always only 1 destination */ - return 1; - default: - BUG(); - } - return 0; -} - -/** * ppc440spe_desc_get_link - get the address of the descriptor that * follows this one */ @@ -1707,43 +1495,6 @@ static void ppc440spe_adma_free_slots(struct ppc440spe_adma_desc_slot *slot, } } -static void ppc440spe_adma_unmap(struct ppc440spe_adma_chan *chan, - struct ppc440spe_adma_desc_slot *desc) -{ - u32 src_cnt, dst_cnt; - dma_addr_t addr; - - /* - * get the number of sources & destination - * included in this descriptor and unmap - * them all - */ - src_cnt = ppc440spe_desc_get_src_num(desc, chan); - dst_cnt = ppc440spe_desc_get_dst_num(desc, chan); - - /* unmap destinations */ - if (!(desc->async_tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - while (dst_cnt--) { - addr = ppc440spe_desc_get_dest_addr( - desc, chan, dst_cnt); - dma_unmap_page(chan->device->dev, - addr, desc->unmap_len, - DMA_FROM_DEVICE); - } - } - - /* unmap sources */ - if (!(desc->async_tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - while (src_cnt--) { - addr = ppc440spe_desc_get_src_addr( - desc, chan, src_cnt); - dma_unmap_page(chan->device->dev, - addr, desc->unmap_len, - DMA_TO_DEVICE); - } - } -} - /** * ppc440spe_adma_run_tx_complete_actions - call functions to be called * upon completion @@ -1767,26 +1518,7 @@ static dma_cookie_t ppc440spe_adma_run_tx_complete_actions( desc->async_tx.callback( desc->async_tx.callback_param); - /* unmap dma addresses - * (unmap_single vs unmap_page?) - * - * actually, ppc's dma_unmap_page() functions are empty, so - * the following code is just for the sake of completeness - */ - if (chan && chan->needs_unmap && desc->group_head && - desc->unmap_len) { - struct ppc440spe_adma_desc_slot *unmap = - desc->group_head; - /* assume 1 slot per op always */ - u32 slot_count = unmap->slot_cnt; - - /* Run through the group list and unmap addresses */ - for (i = 0; i < slot_count; i++) { - BUG_ON(!unmap); - ppc440spe_adma_unmap(chan, unmap); - unmap = unmap->hw_next; - } - } + dma_descriptor_unmap(&desc->async_tx); } /* run dependent operations */ @@ -3893,7 +3625,7 @@ static enum dma_status ppc440spe_adma_tx_status(struct dma_chan *chan, ppc440spe_chan = to_ppc440spe_adma_chan(chan); ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; ppc440spe_adma_slot_cleanup(ppc440spe_chan); diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c index 461a91ab70bb..ab26d46bbe15 100644 --- a/drivers/dma/sa11x0-dma.c +++ b/drivers/dma/sa11x0-dma.c @@ -436,7 +436,7 @@ static enum dma_status sa11x0_dma_tx_status(struct dma_chan *chan, enum dma_status ret; ret = dma_cookie_status(&c->vc.chan, cookie, state); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; if (!state) diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index d94ab592cc1b..2e7b394def80 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -724,7 +724,7 @@ static enum dma_status shdma_tx_status(struct dma_chan *chan, * If we don't find cookie on the queue, it has been aborted and we have * to report error */ - if (status != DMA_SUCCESS) { + if (status != DMA_COMPLETE) { struct shdma_desc *sdesc; status = DMA_ERROR; list_for_each_entry(sdesc, &schan->ld_queue, node) diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c index 1069e8869f20..0d765c0e21ec 100644 --- a/drivers/dma/sh/shdmac.c +++ b/drivers/dma/sh/shdmac.c @@ -685,7 +685,7 @@ MODULE_DEVICE_TABLE(of, sh_dmae_of_match); static int sh_dmae_probe(struct platform_device *pdev) { const struct sh_dmae_pdata *pdata; - unsigned long irqflags = IRQF_DISABLED, + unsigned long irqflags = 0, chan_flag[SH_DMAE_MAX_CHANNELS] = {}; int errirq, chan_irq[SH_DMAE_MAX_CHANNELS]; int err, i, irq_cnt = 0, irqres = 0, irq_cap = 0; @@ -838,7 +838,7 @@ static int sh_dmae_probe(struct platform_device *pdev) IORESOURCE_IRQ_SHAREABLE) chan_flag[irq_cnt] = IRQF_SHARED; else - chan_flag[irq_cnt] = IRQF_DISABLED; + chan_flag[irq_cnt] = 0; dev_dbg(&pdev->dev, "Found IRQ %d for channel %d\n", i, irq_cnt); diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 82d2b97ad942..b8c031b7de4e 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -14,6 +14,7 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/delay.h> +#include <linux/log2.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/err.h> @@ -2626,7 +2627,7 @@ static enum dma_status d40_tx_status(struct dma_chan *chan, } ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) + if (ret != DMA_COMPLETE) dma_set_residue(txstate, stedma40_residue(chan)); if (d40_is_paused(d40c)) @@ -2796,8 +2797,8 @@ static int d40_set_runtime_config(struct dma_chan *chan, src_addr_width > DMA_SLAVE_BUSWIDTH_8_BYTES || dst_addr_width <= DMA_SLAVE_BUSWIDTH_UNDEFINED || dst_addr_width > DMA_SLAVE_BUSWIDTH_8_BYTES || - ((src_addr_width > 1) && (src_addr_width & 1)) || - ((dst_addr_width > 1) && (dst_addr_width & 1))) + !is_power_of_2(src_addr_width) || + !is_power_of_2(dst_addr_width)) return -EINVAL; cfg->src_info.data_width = src_addr_width; diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 5d4986e5f5fa..73654e33f13b 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -570,7 +570,7 @@ static void handle_once_dma_done(struct tegra_dma_channel *tdc, list_del(&sgreq->node); if (sgreq->last_sg) { - dma_desc->dma_status = DMA_SUCCESS; + dma_desc->dma_status = DMA_COMPLETE; dma_cookie_complete(&dma_desc->txd); if (!dma_desc->cb_count) list_add_tail(&dma_desc->cb_node, &tdc->cb_desc); @@ -768,7 +768,7 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc, unsigned int residual; ret = dma_cookie_status(dc, cookie, txstate); - if (ret == DMA_SUCCESS) + if (ret == DMA_COMPLETE) return ret; spin_lock_irqsave(&tdc->lock, flags); @@ -1018,7 +1018,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg( return &dma_desc->txd; } -struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic( +static struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic( struct dma_chan *dc, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_transfer_direction direction, unsigned long flags, void *context) diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c index 28af214fce04..4506a7b4f972 100644 --- a/drivers/dma/timb_dma.c +++ b/drivers/dma/timb_dma.c @@ -154,38 +154,6 @@ static bool __td_dma_done_ack(struct timb_dma_chan *td_chan) return done; } -static void __td_unmap_desc(struct timb_dma_chan *td_chan, const u8 *dma_desc, - bool single) -{ - dma_addr_t addr; - int len; - - addr = (dma_desc[7] << 24) | (dma_desc[6] << 16) | (dma_desc[5] << 8) | - dma_desc[4]; - - len = (dma_desc[3] << 8) | dma_desc[2]; - - if (single) - dma_unmap_single(chan2dev(&td_chan->chan), addr, len, - DMA_TO_DEVICE); - else - dma_unmap_page(chan2dev(&td_chan->chan), addr, len, - DMA_TO_DEVICE); -} - -static void __td_unmap_descs(struct timb_dma_desc *td_desc, bool single) -{ - struct timb_dma_chan *td_chan = container_of(td_desc->txd.chan, - struct timb_dma_chan, chan); - u8 *descs; - - for (descs = td_desc->desc_list; ; descs += TIMB_DMA_DESC_SIZE) { - __td_unmap_desc(td_chan, descs, single); - if (descs[0] & 0x02) - break; - } -} - static int td_fill_desc(struct timb_dma_chan *td_chan, u8 *dma_desc, struct scatterlist *sg, bool last) { @@ -293,10 +261,7 @@ static void __td_finish(struct timb_dma_chan *td_chan) list_move(&td_desc->desc_node, &td_chan->free_list); - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) - __td_unmap_descs(td_desc, - txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE); - + dma_descriptor_unmap(txd); /* * The API requires that no submissions are done from a * callback, so we don't need to drop the lock here diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c index 71e8e775189e..bae6c29f5502 100644 --- a/drivers/dma/txx9dmac.c +++ b/drivers/dma/txx9dmac.c @@ -419,30 +419,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc, list_splice_init(&desc->tx_list, &dc->free_list); list_move(&desc->desc_node, &dc->free_list); - if (!ds) { - dma_addr_t dmaaddr; - if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) { - dmaaddr = is_dmac64(dc) ? - desc->hwdesc.DAR : desc->hwdesc32.DAR; - if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(chan2parent(&dc->chan), - dmaaddr, desc->len, DMA_FROM_DEVICE); - else - dma_unmap_page(chan2parent(&dc->chan), - dmaaddr, desc->len, DMA_FROM_DEVICE); - } - if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) { - dmaaddr = is_dmac64(dc) ? - desc->hwdesc.SAR : desc->hwdesc32.SAR; - if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(chan2parent(&dc->chan), - dmaaddr, desc->len, DMA_TO_DEVICE); - else - dma_unmap_page(chan2parent(&dc->chan), - dmaaddr, desc->len, DMA_TO_DEVICE); - } - } - + dma_descriptor_unmap(txd); /* * The API requires that no submissions are done from a * callback, so we don't need to drop the lock here @@ -962,8 +939,8 @@ txx9dmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret == DMA_SUCCESS) - return DMA_SUCCESS; + if (ret == DMA_COMPLETE) + return DMA_COMPLETE; spin_lock_bh(&dc->lock); txx9dmac_scan_descriptors(dc); diff --git a/drivers/edac/cell_edac.c b/drivers/edac/cell_edac.c index 9ee1c76da7b9..374b57fc596d 100644 --- a/drivers/edac/cell_edac.c +++ b/drivers/edac/cell_edac.c @@ -163,6 +163,7 @@ static void cell_edac_init_csrows(struct mem_ctl_info *mci) csrow->first_page, nr_pages); break; } + of_node_put(np); } static int cell_edac_probe(struct platform_device *pdev) diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index 211021dfec73..102674346035 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -530,12 +530,9 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev) /* Report action taken */ edac_device_printk(edac_dev, KERN_INFO, - "Giving out device to module '%s' controller " - "'%s': DEV '%s' (%s)\n", - edac_dev->mod_name, - edac_dev->ctl_name, - edac_dev_name(edac_dev), - edac_op_state_to_string(edac_dev->op_state)); + "Giving out device to module %s controller %s: DEV %s (%s)\n", + edac_dev->mod_name, edac_dev->ctl_name, edac_dev->dev_name, + edac_op_state_to_string(edac_dev->op_state)); mutex_unlock(&device_ctls_mutex); return 0; diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 89e109022d78..e8c9ef03495b 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -788,8 +788,10 @@ int edac_mc_add_mc(struct mem_ctl_info *mci) } /* Report action taken */ - edac_mc_printk(mci, KERN_INFO, "Giving out device to '%s' '%s':" - " DEV %s\n", mci->mod_name, mci->ctl_name, edac_dev_name(mci)); + edac_mc_printk(mci, KERN_INFO, + "Giving out device to module %s controller %s: DEV %s (%s)\n", + mci->mod_name, mci->ctl_name, mci->dev_name, + edac_op_state_to_string(mci->op_state)); edac_mc_owner = mci->mod_name; diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c index dd370f92ace3..2cf44b4db80c 100644 --- a/drivers/edac/edac_pci.c +++ b/drivers/edac/edac_pci.c @@ -358,11 +358,9 @@ int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx) } edac_pci_printk(pci, KERN_INFO, - "Giving out device to module '%s' controller '%s':" - " DEV '%s' (%s)\n", - pci->mod_name, - pci->ctl_name, - edac_dev_name(pci), edac_op_state_to_string(pci->op_state)); + "Giving out device to module %s controller %s: DEV %s (%s)\n", + pci->mod_name, pci->ctl_name, pci->dev_name, + edac_op_state_to_string(pci->op_state)); mutex_unlock(&edac_pci_ctls_mutex); return 0; diff --git a/drivers/edac/highbank_l2_edac.c b/drivers/edac/highbank_l2_edac.c index c2bd8c6a4349..2f193668ebc7 100644 --- a/drivers/edac/highbank_l2_edac.c +++ b/drivers/edac/highbank_l2_edac.c @@ -50,8 +50,15 @@ static irqreturn_t highbank_l2_err_handler(int irq, void *dev_id) return IRQ_HANDLED; } +static const struct of_device_id hb_l2_err_of_match[] = { + { .compatible = "calxeda,hb-sregs-l2-ecc", }, + {}, +}; +MODULE_DEVICE_TABLE(of, hb_l2_err_of_match); + static int highbank_l2_err_probe(struct platform_device *pdev) { + const struct of_device_id *id; struct edac_device_ctl_info *dci; struct hb_l2_drvdata *drvdata; struct resource *r; @@ -90,28 +97,32 @@ static int highbank_l2_err_probe(struct platform_device *pdev) goto err; } + id = of_match_device(hb_l2_err_of_match, &pdev->dev); + dci->mod_name = pdev->dev.driver->name; + dci->ctl_name = id ? id->compatible : "unknown"; + dci->dev_name = dev_name(&pdev->dev); + + if (edac_device_add_device(dci)) + goto err; + drvdata->db_irq = platform_get_irq(pdev, 0); res = devm_request_irq(&pdev->dev, drvdata->db_irq, highbank_l2_err_handler, 0, dev_name(&pdev->dev), dci); if (res < 0) - goto err; + goto err2; drvdata->sb_irq = platform_get_irq(pdev, 1); res = devm_request_irq(&pdev->dev, drvdata->sb_irq, highbank_l2_err_handler, 0, dev_name(&pdev->dev), dci); if (res < 0) - goto err; - - dci->mod_name = dev_name(&pdev->dev); - dci->dev_name = dev_name(&pdev->dev); - - if (edac_device_add_device(dci)) - goto err; + goto err2; devres_close_group(&pdev->dev, NULL); return 0; +err2: + edac_device_del_device(&pdev->dev); err: devres_release_group(&pdev->dev, NULL); edac_device_free_ctl_info(dci); @@ -127,12 +138,6 @@ static int highbank_l2_err_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id hb_l2_err_of_match[] = { - { .compatible = "calxeda,hb-sregs-l2-ecc", }, - {}, -}; -MODULE_DEVICE_TABLE(of, hb_l2_err_of_match); - static struct platform_driver highbank_l2_edac_driver = { .probe = highbank_l2_err_probe, .remove = highbank_l2_err_remove, diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c index 4695dd2d71fd..f784de1dc793 100644 --- a/drivers/edac/highbank_mc_edac.c +++ b/drivers/edac/highbank_mc_edac.c @@ -26,31 +26,40 @@ #include "edac_module.h" /* DDR Ctrlr Error Registers */ -#define HB_DDR_ECC_OPT 0x128 -#define HB_DDR_ECC_U_ERR_ADDR 0x130 -#define HB_DDR_ECC_U_ERR_STAT 0x134 -#define HB_DDR_ECC_U_ERR_DATAL 0x138 -#define HB_DDR_ECC_U_ERR_DATAH 0x13c -#define HB_DDR_ECC_C_ERR_ADDR 0x140 -#define HB_DDR_ECC_C_ERR_STAT 0x144 -#define HB_DDR_ECC_C_ERR_DATAL 0x148 -#define HB_DDR_ECC_C_ERR_DATAH 0x14c -#define HB_DDR_ECC_INT_STATUS 0x180 -#define HB_DDR_ECC_INT_ACK 0x184 -#define HB_DDR_ECC_U_ERR_ID 0x424 -#define HB_DDR_ECC_C_ERR_ID 0x428 -#define HB_DDR_ECC_INT_STAT_CE 0x8 -#define HB_DDR_ECC_INT_STAT_DOUBLE_CE 0x10 -#define HB_DDR_ECC_INT_STAT_UE 0x20 -#define HB_DDR_ECC_INT_STAT_DOUBLE_UE 0x40 +#define HB_DDR_ECC_ERR_BASE 0x128 +#define MW_DDR_ECC_ERR_BASE 0x1b4 + +#define HB_DDR_ECC_OPT 0x00 +#define HB_DDR_ECC_U_ERR_ADDR 0x08 +#define HB_DDR_ECC_U_ERR_STAT 0x0c +#define HB_DDR_ECC_U_ERR_DATAL 0x10 +#define HB_DDR_ECC_U_ERR_DATAH 0x14 +#define HB_DDR_ECC_C_ERR_ADDR 0x18 +#define HB_DDR_ECC_C_ERR_STAT 0x1c +#define HB_DDR_ECC_C_ERR_DATAL 0x20 +#define HB_DDR_ECC_C_ERR_DATAH 0x24 #define HB_DDR_ECC_OPT_MODE_MASK 0x3 #define HB_DDR_ECC_OPT_FWC 0x100 #define HB_DDR_ECC_OPT_XOR_SHIFT 16 +/* DDR Ctrlr Interrupt Registers */ + +#define HB_DDR_ECC_INT_BASE 0x180 +#define MW_DDR_ECC_INT_BASE 0x218 + +#define HB_DDR_ECC_INT_STATUS 0x00 +#define HB_DDR_ECC_INT_ACK 0x04 + +#define HB_DDR_ECC_INT_STAT_CE 0x8 +#define HB_DDR_ECC_INT_STAT_DOUBLE_CE 0x10 +#define HB_DDR_ECC_INT_STAT_UE 0x20 +#define HB_DDR_ECC_INT_STAT_DOUBLE_UE 0x40 + struct hb_mc_drvdata { - void __iomem *mc_vbase; + void __iomem *mc_err_base; + void __iomem *mc_int_base; }; static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id) @@ -60,10 +69,10 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id) u32 status, err_addr; /* Read the interrupt status register */ - status = readl(drvdata->mc_vbase + HB_DDR_ECC_INT_STATUS); + status = readl(drvdata->mc_int_base + HB_DDR_ECC_INT_STATUS); if (status & HB_DDR_ECC_INT_STAT_UE) { - err_addr = readl(drvdata->mc_vbase + HB_DDR_ECC_U_ERR_ADDR); + err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_U_ERR_ADDR); edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, err_addr >> PAGE_SHIFT, err_addr & ~PAGE_MASK, 0, @@ -71,9 +80,9 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id) mci->ctl_name, ""); } if (status & HB_DDR_ECC_INT_STAT_CE) { - u32 syndrome = readl(drvdata->mc_vbase + HB_DDR_ECC_C_ERR_STAT); + u32 syndrome = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_STAT); syndrome = (syndrome >> 8) & 0xff; - err_addr = readl(drvdata->mc_vbase + HB_DDR_ECC_C_ERR_ADDR); + err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_ADDR); edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, err_addr >> PAGE_SHIFT, err_addr & ~PAGE_MASK, syndrome, @@ -82,66 +91,79 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id) } /* clear the error, clears the interrupt */ - writel(status, drvdata->mc_vbase + HB_DDR_ECC_INT_ACK); + writel(status, drvdata->mc_int_base + HB_DDR_ECC_INT_ACK); return IRQ_HANDLED; } -#ifdef CONFIG_EDAC_DEBUG -static ssize_t highbank_mc_err_inject_write(struct file *file, - const char __user *data, - size_t count, loff_t *ppos) +static void highbank_mc_err_inject(struct mem_ctl_info *mci, u8 synd) { - struct mem_ctl_info *mci = file->private_data; struct hb_mc_drvdata *pdata = mci->pvt_info; - char buf[32]; - size_t buf_size; u32 reg; + + reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT); + reg &= HB_DDR_ECC_OPT_MODE_MASK; + reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC; + writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT); +} + +#define to_mci(k) container_of(k, struct mem_ctl_info, dev) + +static ssize_t highbank_mc_inject_ctrl(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct mem_ctl_info *mci = to_mci(dev); u8 synd; - buf_size = min(count, (sizeof(buf)-1)); - if (copy_from_user(buf, data, buf_size)) - return -EFAULT; - buf[buf_size] = 0; + if (kstrtou8(buf, 16, &synd)) + return -EINVAL; - if (!kstrtou8(buf, 16, &synd)) { - reg = readl(pdata->mc_vbase + HB_DDR_ECC_OPT); - reg &= HB_DDR_ECC_OPT_MODE_MASK; - reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC; - writel(reg, pdata->mc_vbase + HB_DDR_ECC_OPT); - } + highbank_mc_err_inject(mci, synd); return count; } -static const struct file_operations highbank_mc_debug_inject_fops = { - .open = simple_open, - .write = highbank_mc_err_inject_write, - .llseek = generic_file_llseek, +static DEVICE_ATTR(inject_ctrl, S_IWUSR, NULL, highbank_mc_inject_ctrl); + +struct hb_mc_settings { + int err_offset; + int int_offset; }; -static void highbank_mc_create_debugfs_nodes(struct mem_ctl_info *mci) -{ - if (mci->debugfs) - debugfs_create_file("inject_ctrl", S_IWUSR, mci->debugfs, mci, - &highbank_mc_debug_inject_fops); -; -} -#else -static void highbank_mc_create_debugfs_nodes(struct mem_ctl_info *mci) -{} -#endif +static struct hb_mc_settings hb_settings = { + .err_offset = HB_DDR_ECC_ERR_BASE, + .int_offset = HB_DDR_ECC_INT_BASE, +}; + +static struct hb_mc_settings mw_settings = { + .err_offset = MW_DDR_ECC_ERR_BASE, + .int_offset = MW_DDR_ECC_INT_BASE, +}; + +static struct of_device_id hb_ddr_ctrl_of_match[] = { + { .compatible = "calxeda,hb-ddr-ctrl", .data = &hb_settings }, + { .compatible = "calxeda,ecx-2000-ddr-ctrl", .data = &mw_settings }, + {}, +}; +MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match); static int highbank_mc_probe(struct platform_device *pdev) { + const struct of_device_id *id; + const struct hb_mc_settings *settings; struct edac_mc_layer layers[2]; struct mem_ctl_info *mci; struct hb_mc_drvdata *drvdata; struct dimm_info *dimm; struct resource *r; + void __iomem *base; u32 control; int irq; int res = 0; + id = of_match_device(hb_ddr_ctrl_of_match, &pdev->dev); + if (!id) + return -ENODEV; + layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; layers[0].size = 1; layers[0].is_virt_csrow = true; @@ -174,35 +196,31 @@ static int highbank_mc_probe(struct platform_device *pdev) goto err; } - drvdata->mc_vbase = devm_ioremap(&pdev->dev, - r->start, resource_size(r)); - if (!drvdata->mc_vbase) { + base = devm_ioremap(&pdev->dev, r->start, resource_size(r)); + if (!base) { dev_err(&pdev->dev, "Unable to map regs\n"); res = -ENOMEM; goto err; } - control = readl(drvdata->mc_vbase + HB_DDR_ECC_OPT) & 0x3; + settings = id->data; + drvdata->mc_err_base = base + settings->err_offset; + drvdata->mc_int_base = base + settings->int_offset; + + control = readl(drvdata->mc_err_base + HB_DDR_ECC_OPT) & 0x3; if (!control || (control == 0x2)) { dev_err(&pdev->dev, "No ECC present, or ECC disabled\n"); res = -ENODEV; goto err; } - irq = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler, - 0, dev_name(&pdev->dev), mci); - if (res < 0) { - dev_err(&pdev->dev, "Unable to request irq %d\n", irq); - goto err; - } - mci->mtype_cap = MEM_FLAG_DDR3; mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; mci->edac_cap = EDAC_FLAG_SECDED; - mci->mod_name = dev_name(&pdev->dev); + mci->mod_name = pdev->dev.driver->name; mci->mod_ver = "1"; - mci->ctl_name = dev_name(&pdev->dev); + mci->ctl_name = id->compatible; + mci->dev_name = dev_name(&pdev->dev); mci->scrub_mode = SCRUB_SW_SRC; /* Only a single 4GB DIMM is supported */ @@ -217,10 +235,20 @@ static int highbank_mc_probe(struct platform_device *pdev) if (res < 0) goto err; - highbank_mc_create_debugfs_nodes(mci); + irq = platform_get_irq(pdev, 0); + res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler, + 0, dev_name(&pdev->dev), mci); + if (res < 0) { + dev_err(&pdev->dev, "Unable to request irq %d\n", irq); + goto err2; + } + + device_create_file(&mci->dev, &dev_attr_inject_ctrl); devres_close_group(&pdev->dev, NULL); return 0; +err2: + edac_mc_del_mc(&pdev->dev); err: devres_release_group(&pdev->dev, NULL); edac_mc_free(mci); @@ -231,17 +259,12 @@ static int highbank_mc_remove(struct platform_device *pdev) { struct mem_ctl_info *mci = platform_get_drvdata(pdev); + device_remove_file(&mci->dev, &dev_attr_inject_ctrl); edac_mc_del_mc(&pdev->dev); edac_mc_free(mci); return 0; } -static const struct of_device_id hb_ddr_ctrl_of_match[] = { - { .compatible = "calxeda,hb-ddr-ctrl", }, - {}, -}; -MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match); - static struct platform_driver highbank_mc_edac_driver = { .probe = highbank_mc_probe, .remove = highbank_mc_remove, diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 3eb32f62d72a..fd46b0bd5f2a 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -327,28 +327,6 @@ err: } EXPORT_SYMBOL(mpc85xx_pci_err_probe); -static int mpc85xx_pci_err_remove(struct platform_device *op) -{ - struct edac_pci_ctl_info *pci = dev_get_drvdata(&op->dev); - struct mpc85xx_pci_pdata *pdata = pci->pvt_info; - - edac_dbg(0, "\n"); - - out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR, - orig_pci_err_cap_dr); - - out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, orig_pci_err_en); - - edac_pci_del_device(pci->dev); - - if (edac_op_state == EDAC_OPSTATE_INT) - irq_dispose_mapping(pdata->irq); - - edac_pci_free_ctl_info(pci); - - return 0; -} - #endif /* CONFIG_PCI */ /**************************** L2 Err device ***************************/ diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 88f60c5fecbc..8472405c5586 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -34,7 +34,7 @@ static int probed; /* * Alter this version for the module when modifications are made */ -#define SBRIDGE_REVISION " Ver: 1.0.0 " +#define SBRIDGE_REVISION " Ver: 1.1.0 " #define EDAC_MOD_STR "sbridge_edac" /* @@ -83,11 +83,17 @@ static int probed; #define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR3 0x3c77 /* 16.7 */ /* Devices 12 Function 6, Offsets 0x80 to 0xcc */ -static const u32 dram_rule[] = { +static const u32 sbridge_dram_rule[] = { 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8, 0xc0, 0xc8, }; -#define MAX_SAD ARRAY_SIZE(dram_rule) + +static const u32 ibridge_dram_rule[] = { + 0x60, 0x68, 0x70, 0x78, 0x80, + 0x88, 0x90, 0x98, 0xa0, 0xa8, + 0xb0, 0xb8, 0xc0, 0xc8, 0xd0, + 0xd8, 0xe0, 0xe8, 0xf0, 0xf8, +}; #define SAD_LIMIT(reg) ((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff) #define DRAM_ATTR(reg) GET_BITFIELD(reg, 2, 3) @@ -108,43 +114,50 @@ static char *get_dram_attr(u32 reg) } } -static const u32 interleave_list[] = { +static const u32 sbridge_interleave_list[] = { 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc, 0xc4, 0xcc, }; -#define MAX_INTERLEAVE ARRAY_SIZE(interleave_list) - -#define SAD_PKG0(reg) GET_BITFIELD(reg, 0, 2) -#define SAD_PKG1(reg) GET_BITFIELD(reg, 3, 5) -#define SAD_PKG2(reg) GET_BITFIELD(reg, 8, 10) -#define SAD_PKG3(reg) GET_BITFIELD(reg, 11, 13) -#define SAD_PKG4(reg) GET_BITFIELD(reg, 16, 18) -#define SAD_PKG5(reg) GET_BITFIELD(reg, 19, 21) -#define SAD_PKG6(reg) GET_BITFIELD(reg, 24, 26) -#define SAD_PKG7(reg) GET_BITFIELD(reg, 27, 29) - -static inline int sad_pkg(u32 reg, int interleave) + +static const u32 ibridge_interleave_list[] = { + 0x64, 0x6c, 0x74, 0x7c, 0x84, + 0x8c, 0x94, 0x9c, 0xa4, 0xac, + 0xb4, 0xbc, 0xc4, 0xcc, 0xd4, + 0xdc, 0xe4, 0xec, 0xf4, 0xfc, +}; + +struct interleave_pkg { + unsigned char start; + unsigned char end; +}; + +static const struct interleave_pkg sbridge_interleave_pkg[] = { + { 0, 2 }, + { 3, 5 }, + { 8, 10 }, + { 11, 13 }, + { 16, 18 }, + { 19, 21 }, + { 24, 26 }, + { 27, 29 }, +}; + +static const struct interleave_pkg ibridge_interleave_pkg[] = { + { 0, 3 }, + { 4, 7 }, + { 8, 11 }, + { 12, 15 }, + { 16, 19 }, + { 20, 23 }, + { 24, 27 }, + { 28, 31 }, +}; + +static inline int sad_pkg(const struct interleave_pkg *table, u32 reg, + int interleave) { - switch (interleave) { - case 0: - return SAD_PKG0(reg); - case 1: - return SAD_PKG1(reg); - case 2: - return SAD_PKG2(reg); - case 3: - return SAD_PKG3(reg); - case 4: - return SAD_PKG4(reg); - case 5: - return SAD_PKG5(reg); - case 6: - return SAD_PKG6(reg); - case 7: - return SAD_PKG7(reg); - default: - return -EINVAL; - } + return GET_BITFIELD(reg, table[interleave].start, + table[interleave].end); } /* Devices 12 Function 7 */ @@ -262,7 +275,9 @@ static const u32 correrrthrsld[] = { /* Device 17, function 0 */ -#define RANK_CFG_A 0x0328 +#define SB_RANK_CFG_A 0x0328 + +#define IB_RANK_CFG_A 0x0320 #define IS_RDIMM_ENABLED(reg) GET_BITFIELD(reg, 11, 11) @@ -273,8 +288,23 @@ static const u32 correrrthrsld[] = { #define NUM_CHANNELS 4 #define MAX_DIMMS 3 /* Max DIMMS per channel */ +enum type { + SANDY_BRIDGE, + IVY_BRIDGE, +}; + +struct sbridge_pvt; struct sbridge_info { - u32 mcmtr; + enum type type; + u32 mcmtr; + u32 rankcfgr; + u64 (*get_tolm)(struct sbridge_pvt *pvt); + u64 (*get_tohm)(struct sbridge_pvt *pvt); + const u32 *dram_rule; + const u32 *interleave_list; + const struct interleave_pkg *interleave_pkg; + u8 max_sad; + u8 max_interleave; }; struct sbridge_channel { @@ -305,8 +335,9 @@ struct sbridge_dev { struct sbridge_pvt { struct pci_dev *pci_ta, *pci_ddrio, *pci_ras; - struct pci_dev *pci_sad0, *pci_sad1, *pci_ha0; - struct pci_dev *pci_br; + struct pci_dev *pci_sad0, *pci_sad1; + struct pci_dev *pci_ha0, *pci_ha1; + struct pci_dev *pci_br0, *pci_br1; struct pci_dev *pci_tad[NUM_CHANNELS]; struct sbridge_dev *sbridge_dev; @@ -364,11 +395,75 @@ static const struct pci_id_table pci_dev_descr_sbridge_table[] = { {0,} /* 0 terminated list. */ }; +/* This changes depending if 1HA or 2HA: + * 1HA: + * 0x0eb8 (17.0) is DDRIO0 + * 2HA: + * 0x0ebc (17.4) is DDRIO0 + */ +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0 0x0eb8 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0 0x0ebc + +/* pci ids */ +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0 0x0ea0 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA 0x0ea8 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS 0x0e71 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0 0x0eaa +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1 0x0eab +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2 0x0eac +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3 0x0ead +#define PCI_DEVICE_ID_INTEL_IBRIDGE_SAD 0x0ec8 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_BR0 0x0ec9 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_BR1 0x0eca +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1 0x0e60 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA 0x0e68 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS 0x0e79 +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0 0x0e6a +#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1 0x0e6b + +static const struct pci_id_descr pci_dev_descr_ibridge[] = { + /* Processor Home Agent */ + { PCI_DESCR(14, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0, 0) }, + + /* Memory controller */ + { PCI_DESCR(15, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA, 0) }, + { PCI_DESCR(15, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS, 0) }, + { PCI_DESCR(15, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0, 0) }, + { PCI_DESCR(15, 3, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1, 0) }, + { PCI_DESCR(15, 4, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2, 0) }, + { PCI_DESCR(15, 5, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3, 0) }, + + /* System Address Decoder */ + { PCI_DESCR(22, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_SAD, 0) }, + + /* Broadcast Registers */ + { PCI_DESCR(22, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_BR0, 1) }, + { PCI_DESCR(22, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_BR1, 0) }, + + /* Optional, mode 2HA */ + { PCI_DESCR(28, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, 1) }, +#if 0 + { PCI_DESCR(29, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA, 1) }, + { PCI_DESCR(29, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS, 1) }, +#endif + { PCI_DESCR(29, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0, 1) }, + { PCI_DESCR(29, 3, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1, 1) }, + + { PCI_DESCR(17, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0, 1) }, + { PCI_DESCR(17, 4, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0, 1) }, +}; + +static const struct pci_id_table pci_dev_descr_ibridge_table[] = { + PCI_ID_TABLE_ENTRY(pci_dev_descr_ibridge), + {0,} /* 0 terminated list. */ +}; + /* * pci_device_id table for which devices we are looking for */ static DEFINE_PCI_DEVICE_TABLE(sbridge_pci_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)}, {0,} /* 0 terminated list. */ }; @@ -458,6 +553,52 @@ static void free_sbridge_dev(struct sbridge_dev *sbridge_dev) kfree(sbridge_dev); } +static u64 sbridge_get_tolm(struct sbridge_pvt *pvt) +{ + u32 reg; + + /* Address range is 32:28 */ + pci_read_config_dword(pvt->pci_sad1, TOLM, ®); + return GET_TOLM(reg); +} + +static u64 sbridge_get_tohm(struct sbridge_pvt *pvt) +{ + u32 reg; + + pci_read_config_dword(pvt->pci_sad1, TOHM, ®); + return GET_TOHM(reg); +} + +static u64 ibridge_get_tolm(struct sbridge_pvt *pvt) +{ + u32 reg; + + pci_read_config_dword(pvt->pci_br1, TOLM, ®); + + return GET_TOLM(reg); +} + +static u64 ibridge_get_tohm(struct sbridge_pvt *pvt) +{ + u32 reg; + + pci_read_config_dword(pvt->pci_br1, TOHM, ®); + + return GET_TOHM(reg); +} + +static inline u8 sad_pkg_socket(u8 pkg) +{ + /* on Ivy Bridge, nodeID is SASS, where A is HA and S is node id */ + return (pkg >> 3) | (pkg & 0x3); +} + +static inline u8 sad_pkg_ha(u8 pkg) +{ + return (pkg >> 2) & 0x1; +} + /**************************************************************************** Memory check routines ****************************************************************************/ @@ -520,10 +661,10 @@ static int get_dimm_config(struct mem_ctl_info *mci) enum edac_type mode; enum mem_type mtype; - pci_read_config_dword(pvt->pci_br, SAD_TARGET, ®); + pci_read_config_dword(pvt->pci_br0, SAD_TARGET, ®); pvt->sbridge_dev->source_id = SOURCE_ID(reg); - pci_read_config_dword(pvt->pci_br, SAD_CONTROL, ®); + pci_read_config_dword(pvt->pci_br0, SAD_CONTROL, ®); pvt->sbridge_dev->node_id = NODE_ID(reg); edac_dbg(0, "mc#%d: Node ID: %d, source ID: %d\n", pvt->sbridge_dev->mc, @@ -558,7 +699,8 @@ static int get_dimm_config(struct mem_ctl_info *mci) } if (pvt->pci_ddrio) { - pci_read_config_dword(pvt->pci_ddrio, RANK_CFG_A, ®); + pci_read_config_dword(pvt->pci_ddrio, pvt->info.rankcfgr, + ®); if (IS_RDIMM_ENABLED(reg)) { /* FIXME: Can also be LRDIMM */ edac_dbg(0, "Memory is registered\n"); @@ -629,19 +771,14 @@ static void get_memory_layout(const struct mem_ctl_info *mci) * Step 1) Get TOLM/TOHM ranges */ - /* Address range is 32:28 */ - pci_read_config_dword(pvt->pci_sad1, TOLM, - ®); - pvt->tolm = GET_TOLM(reg); + pvt->tolm = pvt->info.get_tolm(pvt); tmp_mb = (1 + pvt->tolm) >> 20; mb = div_u64_rem(tmp_mb, 1000, &kb); edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tolm); /* Address range is already 45:25 */ - pci_read_config_dword(pvt->pci_sad1, TOHM, - ®); - pvt->tohm = GET_TOHM(reg); + pvt->tohm = pvt->info.get_tohm(pvt); tmp_mb = (1 + pvt->tohm) >> 20; mb = div_u64_rem(tmp_mb, 1000, &kb); @@ -654,9 +791,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci) * algorithm bellow. */ prv = 0; - for (n_sads = 0; n_sads < MAX_SAD; n_sads++) { + for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) { /* SAD_LIMIT Address range is 45:26 */ - pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads], + pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads], ®); limit = SAD_LIMIT(reg); @@ -677,15 +814,16 @@ static void get_memory_layout(const struct mem_ctl_info *mci) reg); prv = limit; - pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads], + pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads], ®); - sad_interl = sad_pkg(reg, 0); + sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0); for (j = 0; j < 8; j++) { - if (j > 0 && sad_interl == sad_pkg(reg, j)) + u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, j); + if (j > 0 && sad_interl == pkg) break; edac_dbg(0, "SAD#%d, interleave #%d: %d\n", - n_sads, j, sad_pkg(reg, j)); + n_sads, j, pkg); } } @@ -797,12 +935,13 @@ static int get_memory_error_data(struct mem_ctl_info *mci, { struct mem_ctl_info *new_mci; struct sbridge_pvt *pvt = mci->pvt_info; + struct pci_dev *pci_ha; int n_rir, n_sads, n_tads, sad_way, sck_xch; int sad_interl, idx, base_ch; int interleave_mode; - unsigned sad_interleave[MAX_INTERLEAVE]; + unsigned sad_interleave[pvt->info.max_interleave]; u32 reg; - u8 ch_way,sck_way; + u8 ch_way, sck_way, pkg, sad_ha = 0; u32 tad_offset; u32 rir_way; u32 mb, kb; @@ -828,8 +967,8 @@ static int get_memory_error_data(struct mem_ctl_info *mci, /* * Step 1) Get socket */ - for (n_sads = 0; n_sads < MAX_SAD; n_sads++) { - pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads], + for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) { + pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads], ®); if (!DRAM_RULE_ENABLE(reg)) @@ -844,53 +983,65 @@ static int get_memory_error_data(struct mem_ctl_info *mci, break; prv = limit; } - if (n_sads == MAX_SAD) { + if (n_sads == pvt->info.max_sad) { sprintf(msg, "Can't discover the memory socket"); return -EINVAL; } *area_type = get_dram_attr(reg); interleave_mode = INTERLEAVE_MODE(reg); - pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads], + pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads], ®); - sad_interl = sad_pkg(reg, 0); - for (sad_way = 0; sad_way < 8; sad_way++) { - if (sad_way > 0 && sad_interl == sad_pkg(reg, sad_way)) + + if (pvt->info.type == SANDY_BRIDGE) { + sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0); + for (sad_way = 0; sad_way < 8; sad_way++) { + u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, sad_way); + if (sad_way > 0 && sad_interl == pkg) + break; + sad_interleave[sad_way] = pkg; + edac_dbg(0, "SAD interleave #%d: %d\n", + sad_way, sad_interleave[sad_way]); + } + edac_dbg(0, "mc#%d: Error detected on SAD#%d: address 0x%016Lx < 0x%016Lx, Interleave [%d:6]%s\n", + pvt->sbridge_dev->mc, + n_sads, + addr, + limit, + sad_way + 7, + !interleave_mode ? "" : "XOR[18:16]"); + if (interleave_mode) + idx = ((addr >> 6) ^ (addr >> 16)) & 7; + else + idx = (addr >> 6) & 7; + switch (sad_way) { + case 1: + idx = 0; break; - sad_interleave[sad_way] = sad_pkg(reg, sad_way); - edac_dbg(0, "SAD interleave #%d: %d\n", - sad_way, sad_interleave[sad_way]); - } - edac_dbg(0, "mc#%d: Error detected on SAD#%d: address 0x%016Lx < 0x%016Lx, Interleave [%d:6]%s\n", - pvt->sbridge_dev->mc, - n_sads, - addr, - limit, - sad_way + 7, - interleave_mode ? "" : "XOR[18:16]"); - if (interleave_mode) - idx = ((addr >> 6) ^ (addr >> 16)) & 7; - else + case 2: + idx = idx & 1; + break; + case 4: + idx = idx & 3; + break; + case 8: + break; + default: + sprintf(msg, "Can't discover socket interleave"); + return -EINVAL; + } + *socket = sad_interleave[idx]; + edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n", + idx, sad_way, *socket); + } else { + /* Ivy Bridge's SAD mode doesn't support XOR interleave mode */ idx = (addr >> 6) & 7; - switch (sad_way) { - case 1: - idx = 0; - break; - case 2: - idx = idx & 1; - break; - case 4: - idx = idx & 3; - break; - case 8: - break; - default: - sprintf(msg, "Can't discover socket interleave"); - return -EINVAL; + pkg = sad_pkg(pvt->info.interleave_pkg, reg, idx); + *socket = sad_pkg_socket(pkg); + sad_ha = sad_pkg_ha(pkg); + edac_dbg(0, "SAD interleave package: %d = CPU socket %d, HA %d\n", + idx, *socket, sad_ha); } - *socket = sad_interleave[idx]; - edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n", - idx, sad_way, *socket); /* * Move to the proper node structure, in order to access the @@ -909,9 +1060,16 @@ static int get_memory_error_data(struct mem_ctl_info *mci, * Step 2) Get memory channel */ prv = 0; + if (pvt->info.type == SANDY_BRIDGE) + pci_ha = pvt->pci_ha0; + else { + if (sad_ha) + pci_ha = pvt->pci_ha1; + else + pci_ha = pvt->pci_ha0; + } for (n_tads = 0; n_tads < MAX_TAD; n_tads++) { - pci_read_config_dword(pvt->pci_ha0, tad_dram_rule[n_tads], - ®); + pci_read_config_dword(pci_ha, tad_dram_rule[n_tads], ®); limit = TAD_LIMIT(reg); if (limit <= prv) { sprintf(msg, "Can't discover the memory channel"); @@ -921,14 +1079,13 @@ static int get_memory_error_data(struct mem_ctl_info *mci, break; prv = limit; } + if (n_tads == MAX_TAD) { + sprintf(msg, "Can't discover the memory channel"); + return -EINVAL; + } + ch_way = TAD_CH(reg) + 1; sck_way = TAD_SOCK(reg) + 1; - /* - * FIXME: Is it right to always use channel 0 for offsets? - */ - pci_read_config_dword(pvt->pci_tad[0], - tad_ch_nilv_offset[n_tads], - &tad_offset); if (ch_way == 3) idx = addr >> 6; @@ -958,6 +1115,10 @@ static int get_memory_error_data(struct mem_ctl_info *mci, } *channel_mask = 1 << base_ch; + pci_read_config_dword(pvt->pci_tad[base_ch], + tad_ch_nilv_offset[n_tads], + &tad_offset); + if (pvt->is_mirrored) { *channel_mask |= 1 << ((base_ch + 2) % 4); switch(ch_way) { @@ -1091,12 +1252,6 @@ static void sbridge_put_all_devices(void) } } -/* - * sbridge_get_all_devices Find and perform 'get' operation on the MCH's - * device/functions we want to reference for this driver - * - * Need to 'get' device 16 func 1 and func 2 - */ static int sbridge_get_onedevice(struct pci_dev **prev, u8 *num_mc, const struct pci_id_table *table, @@ -1198,11 +1353,21 @@ static int sbridge_get_onedevice(struct pci_dev **prev, return 0; } -static int sbridge_get_all_devices(u8 *num_mc) +/* + * sbridge_get_all_devices - Find and perform 'get' operation on the MCH's + * device/functions we want to reference for this driver. + * Need to 'get' device 16 func 1 and func 2. + * @num_mc: pointer to the memory controllers count, to be incremented in case + * of success. + * @table: model specific table + * + * returns 0 in case of success or error code + */ +static int sbridge_get_all_devices(u8 *num_mc, + const struct pci_id_table *table) { int i, rc; struct pci_dev *pdev = NULL; - const struct pci_id_table *table = pci_dev_descr_sbridge_table; while (table && table->descr) { for (i = 0; i < table->n_devs; i++) { @@ -1226,8 +1391,8 @@ static int sbridge_get_all_devices(u8 *num_mc) return 0; } -static int mci_bind_devs(struct mem_ctl_info *mci, - struct sbridge_dev *sbridge_dev) +static int sbridge_mci_bind_devs(struct mem_ctl_info *mci, + struct sbridge_dev *sbridge_dev) { struct sbridge_pvt *pvt = mci->pvt_info; struct pci_dev *pdev; @@ -1255,7 +1420,7 @@ static int mci_bind_devs(struct mem_ctl_info *mci, case 13: switch (func) { case 6: - pvt->pci_br = pdev; + pvt->pci_br0 = pdev; break; default: goto error; @@ -1329,6 +1494,131 @@ error: return -EINVAL; } +static int ibridge_mci_bind_devs(struct mem_ctl_info *mci, + struct sbridge_dev *sbridge_dev) +{ + struct sbridge_pvt *pvt = mci->pvt_info; + struct pci_dev *pdev, *tmp; + int i, func, slot; + bool mode_2ha = false; + + tmp = pci_get_device(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, NULL); + if (tmp) { + mode_2ha = true; + pci_dev_put(tmp); + } + + for (i = 0; i < sbridge_dev->n_devs; i++) { + pdev = sbridge_dev->pdev[i]; + if (!pdev) + continue; + slot = PCI_SLOT(pdev->devfn); + func = PCI_FUNC(pdev->devfn); + + switch (slot) { + case 14: + if (func == 0) { + pvt->pci_ha0 = pdev; + break; + } + goto error; + case 15: + switch (func) { + case 0: + pvt->pci_ta = pdev; + break; + case 1: + pvt->pci_ras = pdev; + break; + case 4: + case 5: + /* if we have 2 HAs active, channels 2 and 3 + * are in other device */ + if (mode_2ha) + break; + /* fall through */ + case 2: + case 3: + pvt->pci_tad[func - 2] = pdev; + break; + default: + goto error; + } + break; + case 17: + if (func == 4) { + pvt->pci_ddrio = pdev; + break; + } else if (func == 0) { + if (!mode_2ha) + pvt->pci_ddrio = pdev; + break; + } + goto error; + case 22: + switch (func) { + case 0: + pvt->pci_sad0 = pdev; + break; + case 1: + pvt->pci_br0 = pdev; + break; + case 2: + pvt->pci_br1 = pdev; + break; + default: + goto error; + } + break; + case 28: + if (func == 0) { + pvt->pci_ha1 = pdev; + break; + } + goto error; + case 29: + /* we shouldn't have this device if we have just one + * HA present */ + WARN_ON(!mode_2ha); + if (func == 2 || func == 3) { + pvt->pci_tad[func] = pdev; + break; + } + goto error; + default: + goto error; + } + + edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n", + sbridge_dev->bus, + PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), + pdev); + } + + /* Check if everything were registered */ + if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_br0 || + !pvt->pci_br1 || !pvt->pci_tad || !pvt->pci_ras || + !pvt->pci_ta) + goto enodev; + + for (i = 0; i < NUM_CHANNELS; i++) { + if (!pvt->pci_tad[i]) + goto enodev; + } + return 0; + +enodev: + sbridge_printk(KERN_ERR, "Some needed devices are missing\n"); + return -ENODEV; + +error: + sbridge_printk(KERN_ERR, + "Device %d, function %d is out of the expected range\n", + slot, func); + return -EINVAL; +} + /**************************************************************************** Error check routines ****************************************************************************/ @@ -1349,7 +1639,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci, bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0); bool overflow = GET_BITFIELD(m->status, 62, 62); bool uncorrected_error = GET_BITFIELD(m->status, 61, 61); - bool recoverable = GET_BITFIELD(m->status, 56, 56); + bool recoverable; u32 core_err_cnt = GET_BITFIELD(m->status, 38, 52); u32 mscod = GET_BITFIELD(m->status, 16, 31); u32 errcode = GET_BITFIELD(m->status, 0, 15); @@ -1360,6 +1650,11 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci, int rc, dimm; char *area_type = NULL; + if (pvt->info.type == IVY_BRIDGE) + recoverable = true; + else + recoverable = GET_BITFIELD(m->status, 56, 56); + if (uncorrected_error) { if (ripv) { type = "FATAL"; @@ -1409,6 +1704,10 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci, } } + /* Only decode errors with an valid address (ADDRV) */ + if (!GET_BITFIELD(m->status, 58, 58)) + return; + rc = get_memory_error_data(mci, m->addr, &socket, &channel_mask, &rank, &area_type, msg); if (rc < 0) @@ -1614,11 +1913,12 @@ static void sbridge_unregister_mci(struct sbridge_dev *sbridge_dev) sbridge_dev->mci = NULL; } -static int sbridge_register_mci(struct sbridge_dev *sbridge_dev) +static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) { struct mem_ctl_info *mci; struct edac_mc_layer layers[2]; struct sbridge_pvt *pvt; + struct pci_dev *pdev = sbridge_dev->pdev[0]; int rc; /* Check the number of active and not disabled channels */ @@ -1640,7 +1940,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev) return -ENOMEM; edac_dbg(0, "MC: mci = %p, dev = %p\n", - mci, &sbridge_dev->pdev[0]->dev); + mci, &pdev->dev); pvt = mci->pvt_info; memset(pvt, 0, sizeof(*pvt)); @@ -1654,24 +1954,52 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev) mci->edac_cap = EDAC_FLAG_NONE; mci->mod_name = "sbridge_edac.c"; mci->mod_ver = SBRIDGE_REVISION; - mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx); - mci->dev_name = pci_name(sbridge_dev->pdev[0]); + mci->dev_name = pci_name(pdev); mci->ctl_page_to_phys = NULL; /* Set the function pointer to an actual operation function */ mci->edac_check = sbridge_check_error; - /* Store pci devices at mci for faster access */ - rc = mci_bind_devs(mci, sbridge_dev); - if (unlikely(rc < 0)) - goto fail0; + pvt->info.type = type; + if (type == IVY_BRIDGE) { + pvt->info.rankcfgr = IB_RANK_CFG_A; + pvt->info.get_tolm = ibridge_get_tolm; + pvt->info.get_tohm = ibridge_get_tohm; + pvt->info.dram_rule = ibridge_dram_rule; + pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); + pvt->info.interleave_list = ibridge_interleave_list; + pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); + pvt->info.interleave_pkg = ibridge_interleave_pkg; + mci->ctl_name = kasprintf(GFP_KERNEL, "Ivy Bridge Socket#%d", mci->mc_idx); + + /* Store pci devices at mci for faster access */ + rc = ibridge_mci_bind_devs(mci, sbridge_dev); + if (unlikely(rc < 0)) + goto fail0; + } else { + pvt->info.rankcfgr = SB_RANK_CFG_A; + pvt->info.get_tolm = sbridge_get_tolm; + pvt->info.get_tohm = sbridge_get_tohm; + pvt->info.dram_rule = sbridge_dram_rule; + pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule); + pvt->info.interleave_list = sbridge_interleave_list; + pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list); + pvt->info.interleave_pkg = sbridge_interleave_pkg; + mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx); + + /* Store pci devices at mci for faster access */ + rc = sbridge_mci_bind_devs(mci, sbridge_dev); + if (unlikely(rc < 0)) + goto fail0; + } + /* Get dimm basic config and the memory layout */ get_dimm_config(mci); get_memory_layout(mci); /* record ptr to the generic device */ - mci->pdev = &sbridge_dev->pdev[0]->dev; + mci->pdev = &pdev->dev; /* add this new MC control structure to EDAC's list of MCs */ if (unlikely(edac_mc_add_mc(mci))) { @@ -1702,6 +2030,7 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) int rc; u8 mc, num_mc = 0; struct sbridge_dev *sbridge_dev; + enum type type; /* get the pci devices we want to reserve for our use */ mutex_lock(&sbridge_edac_lock); @@ -1715,7 +2044,13 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) } probed++; - rc = sbridge_get_all_devices(&num_mc); + if (pdev->device == PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA) { + rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_ibridge_table); + type = IVY_BRIDGE; + } else { + rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_sbridge_table); + type = SANDY_BRIDGE; + } if (unlikely(rc < 0)) goto fail0; mc = 0; @@ -1724,7 +2059,7 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) edac_dbg(0, "Registering MC#%d (%d of %d)\n", mc, mc + 1, num_mc); sbridge_dev->mc = mc++; - rc = sbridge_register_mci(sbridge_dev); + rc = sbridge_register_mci(sbridge_dev, type); if (unlikely(rc < 0)) goto fail1; } @@ -1839,5 +2174,5 @@ MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)"); -MODULE_DESCRIPTION("MC Driver for Intel Sandy Bridge memory controllers - " +MODULE_DESCRIPTION("MC Driver for Intel Sandy Bridge and Ivy Bridge memory controllers - " SBRIDGE_REVISION); diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c index 0c7e891c8651..b97d6a6577b9 100644 --- a/drivers/gpio/gpio-twl4030.c +++ b/drivers/gpio/gpio-twl4030.c @@ -354,17 +354,18 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value) static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value) { struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip); + int ret = -EINVAL; mutex_lock(&priv->mutex); if (offset < TWL4030_GPIO_MAX) - twl4030_set_gpio_dataout(offset, value); + ret = twl4030_set_gpio_direction(offset, 0); priv->direction |= BIT(offset); mutex_unlock(&priv->mutex); twl_set(chip, offset, value); - return 0; + return ret; } static int twl_to_irq(struct gpio_chip *chip, unsigned offset) @@ -435,7 +436,8 @@ static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd) static int gpio_twl4030_remove(struct platform_device *pdev); -static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev) +static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev, + struct twl4030_gpio_platform_data *pdata) { struct twl4030_gpio_platform_data *omap_twl_info; @@ -443,6 +445,9 @@ static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev) if (!omap_twl_info) return NULL; + if (pdata) + *omap_twl_info = *pdata; + omap_twl_info->use_leds = of_property_read_bool(dev->of_node, "ti,use-leds"); @@ -500,7 +505,7 @@ no_irqs: mutex_init(&priv->mutex); if (node) - pdata = of_gpio_twl4030(&pdev->dev); + pdata = of_gpio_twl4030(&pdev->dev, pdata); if (pdata == NULL) { dev_err(&pdev->dev, "Platform data is missing\n"); diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 7dd446150294..4e10b10d3ddd 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -13,6 +13,7 @@ #include <linux/acpi_gpio.h> #include <linux/idr.h> #include <linux/slab.h> +#include <linux/acpi.h> #define CREATE_TRACE_POINTS #include <trace/events/gpio.h> diff --git a/drivers/gpu/drm/drm_encoder_slave.c b/drivers/gpu/drm/drm_encoder_slave.c index 0cfb60f54766..d18b88b755c3 100644 --- a/drivers/gpu/drm/drm_encoder_slave.c +++ b/drivers/gpu/drm/drm_encoder_slave.c @@ -67,12 +67,12 @@ int drm_i2c_encoder_init(struct drm_device *dev, goto fail; } - if (!client->driver) { + if (!client->dev.driver) { err = -ENODEV; goto fail_unregister; } - module = client->driver->driver.owner; + module = client->dev.driver->owner; if (!try_module_get(module)) { err = -ENODEV; goto fail_unregister; @@ -80,7 +80,7 @@ int drm_i2c_encoder_init(struct drm_device *dev, encoder->bus_priv = client; - encoder_drv = to_drm_i2c_encoder_driver(client->driver); + encoder_drv = to_drm_i2c_encoder_driver(to_i2c_driver(client->dev.driver)); err = encoder_drv->encoder_init(client, dev, encoder); if (err) @@ -111,7 +111,7 @@ void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder) { struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder); struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder); - struct module *module = client->driver->driver.owner; + struct module *module = client->dev.driver->owner; i2c_unregister_device(client); encoder->bus_priv = NULL; diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 1a35ea53106b..bd2bca395792 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -489,6 +489,11 @@ void drm_sysfs_hotplug_event(struct drm_device *dev) } EXPORT_SYMBOL(drm_sysfs_hotplug_event); +static void drm_sysfs_release(struct device *dev) +{ + kfree(dev); +} + /** * drm_sysfs_device_add - adds a class device to sysfs for a character driver * @dev: DRM device to be added @@ -501,6 +506,7 @@ EXPORT_SYMBOL(drm_sysfs_hotplug_event); int drm_sysfs_device_add(struct drm_minor *minor) { char *minor_str; + int r; if (minor->type == DRM_MINOR_CONTROL) minor_str = "controlD%d"; @@ -509,14 +515,34 @@ int drm_sysfs_device_add(struct drm_minor *minor) else minor_str = "card%d"; - minor->kdev = device_create(drm_class, minor->dev->dev, - MKDEV(DRM_MAJOR, minor->index), - minor, minor_str, minor->index); - if (IS_ERR(minor->kdev)) { - DRM_ERROR("device create failed %ld\n", PTR_ERR(minor->kdev)); - return PTR_ERR(minor->kdev); + minor->kdev = kzalloc(sizeof(*minor->kdev), GFP_KERNEL); + if (!minor->dev) { + r = -ENOMEM; + goto error; } + + device_initialize(minor->kdev); + minor->kdev->devt = MKDEV(DRM_MAJOR, minor->index); + minor->kdev->class = drm_class; + minor->kdev->type = &drm_sysfs_device_minor; + minor->kdev->parent = minor->dev->dev; + minor->kdev->release = drm_sysfs_release; + dev_set_drvdata(minor->kdev, minor); + + r = dev_set_name(minor->kdev, minor_str, minor->index); + if (r < 0) + goto error; + + r = device_add(minor->kdev); + if (r < 0) + goto error; + return 0; + +error: + DRM_ERROR("device create failed %d\n", r); + put_device(minor->kdev); + return r; } /** @@ -529,7 +555,7 @@ int drm_sysfs_device_add(struct drm_minor *minor) void drm_sysfs_device_remove(struct drm_minor *minor) { if (minor->kdev) - device_destroy(drm_class, MKDEV(DRM_MAJOR, minor->index)); + device_unregister(minor->kdev); minor->kdev = NULL; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 3271fd4b1724..7bccedca487a 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -383,6 +383,8 @@ out: g2d_userptr->npages, g2d_userptr->vma); + exynos_gem_put_vma(g2d_userptr->vma); + if (!g2d_userptr->out_of_list) list_del_init(&g2d_userptr->list); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 8600c315b4c4..ccdbecca070d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1816,6 +1816,7 @@ struct drm_i915_file_private { #define HAS_POWER_WELL(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev)) #define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg) #define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev)) +#define HAS_PC8(dev) (IS_HASWELL(dev)) /* XXX HSW:ULX */ #define INTEL_PCH_DEVICE_ID_MASK 0xff00 #define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00 diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index 43959edd4291..dfff0907f70e 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -196,7 +196,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev) acpi_handle dhandle; int ret; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 6dd622d733b9..e4fba39631a5 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -790,7 +790,12 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) /* Default to using SSC */ dev_priv->vbt.lvds_use_ssc = 1; - dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1); + /* + * Core/SandyBridge/IvyBridge use alternative (120MHz) reference + * clock for LVDS. + */ + dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, + !HAS_PCH_SPLIT(dev)); DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->vbt.lvds_ssc_freq); for (port = PORT_A; port < I915_MAX_PORTS; port++) { diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 1591576a6101..330077bcd0bd 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1406,6 +1406,26 @@ void intel_ddi_get_config(struct intel_encoder *encoder, default: break; } + + if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp_bpp && + pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) { + /* + * This is a big fat ugly hack. + * + * Some machines in UEFI boot mode provide us a VBT that has 18 + * bpp and 1.62 GHz link bandwidth for eDP, which for reasons + * unknown we fail to light up. Yet the same BIOS boots up with + * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as + * max, not what it tells us to use. + * + * Note: This will still be broken if the eDP panel is not lit + * up by the BIOS, and thus we can't get the mode at module + * load. + */ + DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", + pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp); + dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp; + } } static void intel_ddi_destroy(struct drm_encoder *encoder) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3cddd508d110..7ec8b488bb1d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6518,6 +6518,9 @@ static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv) void hsw_enable_package_c8(struct drm_i915_private *dev_priv) { + if (!HAS_PC8(dev_priv->dev)) + return; + mutex_lock(&dev_priv->pc8.lock); __hsw_enable_package_c8(dev_priv); mutex_unlock(&dev_priv->pc8.lock); @@ -6525,6 +6528,9 @@ void hsw_enable_package_c8(struct drm_i915_private *dev_priv) void hsw_disable_package_c8(struct drm_i915_private *dev_priv) { + if (!HAS_PC8(dev_priv->dev)) + return; + mutex_lock(&dev_priv->pc8.lock); __hsw_disable_package_c8(dev_priv); mutex_unlock(&dev_priv->pc8.lock); @@ -6562,6 +6568,9 @@ static void hsw_update_package_c8(struct drm_device *dev) struct drm_i915_private *dev_priv = dev->dev_private; bool allow; + if (!HAS_PC8(dev_priv->dev)) + return; + if (!i915_enable_pc8) return; @@ -6585,18 +6594,28 @@ done: static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv) { + if (!HAS_PC8(dev_priv->dev)) + return; + + mutex_lock(&dev_priv->pc8.lock); if (!dev_priv->pc8.gpu_idle) { dev_priv->pc8.gpu_idle = true; - hsw_enable_package_c8(dev_priv); + __hsw_enable_package_c8(dev_priv); } + mutex_unlock(&dev_priv->pc8.lock); } static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv) { + if (!HAS_PC8(dev_priv->dev)) + return; + + mutex_lock(&dev_priv->pc8.lock); if (dev_priv->pc8.gpu_idle) { dev_priv->pc8.gpu_idle = false; - hsw_disable_package_c8(dev_priv); + __hsw_disable_package_c8(dev_priv); } + mutex_unlock(&dev_priv->pc8.lock); } #define for_each_power_domain(domain, mask) \ @@ -7184,7 +7203,9 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base) intel_crtc->cursor_visible = visible; } /* and commit changes on next vblank */ + POSTING_READ(CURCNTR(pipe)); I915_WRITE(CURBASE(pipe), base); + POSTING_READ(CURBASE(pipe)); } static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) @@ -7213,7 +7234,9 @@ static void ivb_update_cursor(struct drm_crtc *crtc, u32 base) intel_crtc->cursor_visible = visible; } /* and commit changes on next vblank */ + POSTING_READ(CURCNTR_IVB(pipe)); I915_WRITE(CURBASE_IVB(pipe), base); + POSTING_READ(CURBASE_IVB(pipe)); } /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */ @@ -9248,8 +9271,7 @@ check_crtc_state(struct drm_device *dev) enum pipe pipe; if (encoder->base.crtc != &crtc->base) continue; - if (encoder->get_config && - encoder->get_hw_state(encoder, &pipe)) + if (encoder->get_hw_state(encoder, &pipe)) encoder->get_config(encoder, &pipe_config); } @@ -10909,8 +10931,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev) if (encoder->get_hw_state(encoder, &pipe)) { crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]); encoder->base.crtc = &crtc->base; - if (encoder->get_config) - encoder->get_config(encoder, &crtc->config); + encoder->get_config(encoder, &crtc->config); } else { encoder->base.crtc = NULL; } diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index eb8139da9763..0b2e842fef01 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1774,7 +1774,7 @@ static void intel_disable_dp(struct intel_encoder *encoder) * ensure that we have vdd while we switch off the panel. */ ironlake_edp_panel_vdd_on(intel_dp); ironlake_edp_backlight_off(intel_dp); - intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); + intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); ironlake_edp_panel_off(intel_dp); /* cpu edp my only be disable _after_ the cpu pipe/plane is disabled. */ diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 1b2f41c3f191..6d69a9bad865 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -638,7 +638,7 @@ static void intel_didl_outputs(struct drm_device *dev) u32 temp; int i = 0; - handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + handle = ACPI_HANDLE(&dev->pdev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) return; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0a07d7c9cafc..caf2ee4e5441 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -1625,7 +1625,7 @@ static void i9xx_update_wm(struct drm_crtc *unused_crtc) &to_intel_crtc(enabled)->config.adjusted_mode; int clock = adjusted_mode->crtc_clock; int htotal = adjusted_mode->htotal; - int hdisplay = to_intel_crtc(crtc)->config.pipe_src_w; + int hdisplay = to_intel_crtc(enabled)->config.pipe_src_w; int pixel_size = enabled->fb->bits_per_pixel / 8; unsigned long line_time_us; int entries; @@ -3888,7 +3888,7 @@ static void gen6_enable_rps(struct drm_device *dev) I915_WRITE(GEN6_RC_SLEEP, 0); I915_WRITE(GEN6_RC1e_THRESHOLD, 1000); - if (INTEL_INFO(dev)->gen <= 6 || IS_IVYBRIDGE(dev)) + if (IS_IVYBRIDGE(dev)) I915_WRITE(GEN6_RC6_THRESHOLD, 125000); else I915_WRITE(GEN6_RC6_THRESHOLD, 50000); diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c index 18c406246a2d..22cf0f4ba248 100644 --- a/drivers/gpu/drm/i915/intel_tv.c +++ b/drivers/gpu/drm/i915/intel_tv.c @@ -902,6 +902,13 @@ intel_tv_mode_valid(struct drm_connector *connector, } +static void +intel_tv_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config) +{ + pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock; +} + static bool intel_tv_compute_config(struct intel_encoder *encoder, struct intel_crtc_config *pipe_config) @@ -1621,6 +1628,7 @@ intel_tv_init(struct drm_device *dev) DRM_MODE_ENCODER_TVDAC); intel_encoder->compute_config = intel_tv_compute_config; + intel_encoder->get_config = intel_tv_get_config; intel_encoder->mode_set = intel_tv_mode_set; intel_encoder->enable = intel_enable_tv; intel_encoder->disable = intel_disable_tv; diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index f9883ceff946..0b02078a0b84 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -217,6 +217,19 @@ static void gen6_force_wake_work(struct work_struct *work) spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } +static void intel_uncore_forcewake_reset(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + if (IS_VALLEYVIEW(dev)) { + vlv_force_wake_reset(dev_priv); + } else if (INTEL_INFO(dev)->gen >= 6) { + __gen6_gt_force_wake_reset(dev_priv); + if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) + __gen6_gt_force_wake_mt_reset(dev_priv); + } +} + void intel_uncore_early_sanitize(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -234,19 +247,8 @@ void intel_uncore_early_sanitize(struct drm_device *dev) dev_priv->ellc_size = 128; DRM_INFO("Found %zuMB of eLLC\n", dev_priv->ellc_size); } -} -static void intel_uncore_forcewake_reset(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - - if (IS_VALLEYVIEW(dev)) { - vlv_force_wake_reset(dev_priv); - } else if (INTEL_INFO(dev)->gen >= 6) { - __gen6_gt_force_wake_reset(dev_priv); - if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) - __gen6_gt_force_wake_mt_reset(dev_priv); - } + intel_uncore_forcewake_reset(dev); } void intel_uncore_sanitize(struct drm_device *dev) diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c index e286e132c7e7..129120473f6c 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c @@ -116,7 +116,7 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version) acpi_handle handle; int ret; - handle = DEVICE_ACPI_HANDLE(&device->pdev->dev); + handle = ACPI_HANDLE(&device->pdev->dev); if (!handle) return false; diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c index 13b850076443..e44ed7b93c6d 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c +++ b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c @@ -41,7 +41,8 @@ probe_monitoring_device(struct nouveau_i2c_port *i2c, if (!client) return false; - if (!client->driver || client->driver->detect(client, info)) { + if (!client->dev.driver || + to_i2c_driver(client->dev.driver)->detect(client, info)) { i2c_unregister_device(client); return false; } diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index 07273a2ae62f..95c740454049 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -256,7 +256,7 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev) acpi_handle dhandle; int retval = 0; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -414,7 +414,7 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev) if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected) return false; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -448,7 +448,7 @@ nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector) return NULL; } - handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev); + handle = ACPI_HANDLE(&dev->pdev->dev); if (!handle) return NULL; diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index deaf98cdca3a..0652ee0a2098 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -56,8 +56,10 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, return -EINVAL; } args.ucRegIndex = buf[0]; - if (num > 1) - memcpy(&out, &buf[1], num - 1); + if (num > 1) { + num--; + memcpy(&out, &buf[1], num); + } args.lpI2CDataOut = cpu_to_le16(out); } else { if (num > ATOM_MAX_HW_I2C_READ) { diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index ae92aa041c6a..b43a3a3c9067 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -1560,17 +1560,17 @@ u32 cik_get_xclk(struct radeon_device *rdev) * cik_mm_rdoorbell - read a doorbell dword * * @rdev: radeon_device pointer - * @offset: byte offset into the aperture + * @index: doorbell index * * Returns the value in the doorbell aperture at the - * requested offset (CIK). + * requested doorbell index (CIK). */ -u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset) +u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 index) { - if (offset < rdev->doorbell.size) { - return readl(((void __iomem *)rdev->doorbell.ptr) + offset); + if (index < rdev->doorbell.num_doorbells) { + return readl(rdev->doorbell.ptr + index); } else { - DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", offset); + DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index); return 0; } } @@ -1579,18 +1579,18 @@ u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset) * cik_mm_wdoorbell - write a doorbell dword * * @rdev: radeon_device pointer - * @offset: byte offset into the aperture + * @index: doorbell index * @v: value to write * * Writes @v to the doorbell aperture at the - * requested offset (CIK). + * requested doorbell index (CIK). */ -void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v) +void cik_mm_wdoorbell(struct radeon_device *rdev, u32 index, u32 v) { - if (offset < rdev->doorbell.size) { - writel(v, ((void __iomem *)rdev->doorbell.ptr) + offset); + if (index < rdev->doorbell.num_doorbells) { + writel(v, rdev->doorbell.ptr + index); } else { - DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", offset); + DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index); } } @@ -2427,6 +2427,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev) gb_tile_moden = 0; break; } + rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden; WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden); } } else if (num_pipe_configs == 4) { @@ -2773,6 +2774,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev) gb_tile_moden = 0; break; } + rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden; WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden); } } else if (num_pipe_configs == 2) { @@ -2990,6 +2992,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev) gb_tile_moden = 0; break; } + rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden; WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden); } } else @@ -3556,17 +3559,24 @@ void cik_fence_compute_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, 0); } -void cik_semaphore_ring_emit(struct radeon_device *rdev, +bool cik_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) { +/* TODO: figure out why semaphore cause lockups */ +#if 0 uint64_t addr = semaphore->gpu_addr; unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL; radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1)); radeon_ring_write(ring, addr & 0xffffffff); radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel); + + return true; +#else + return false; +#endif } /** @@ -3609,13 +3619,8 @@ int cik_copy_cpdma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; @@ -4052,7 +4057,7 @@ void cik_compute_ring_set_wptr(struct radeon_device *rdev, struct radeon_ring *ring) { rdev->wb.wb[ring->wptr_offs/4] = cpu_to_le32(ring->wptr); - WDOORBELL32(ring->doorbell_offset, ring->wptr); + WDOORBELL32(ring->doorbell_index, ring->wptr); } /** @@ -4393,10 +4398,6 @@ static int cik_cp_compute_resume(struct radeon_device *rdev) return r; } - /* doorbell offset */ - rdev->ring[idx].doorbell_offset = - (rdev->ring[idx].doorbell_page_num * PAGE_SIZE) + 0; - /* init the mqd struct */ memset(buf, 0, sizeof(struct bonaire_mqd)); @@ -4508,7 +4509,7 @@ static int cik_cp_compute_resume(struct radeon_device *rdev) RREG32(CP_HQD_PQ_DOORBELL_CONTROL); mqd->queue_state.cp_hqd_pq_doorbell_control &= ~DOORBELL_OFFSET_MASK; mqd->queue_state.cp_hqd_pq_doorbell_control |= - DOORBELL_OFFSET(rdev->ring[idx].doorbell_offset / 4); + DOORBELL_OFFSET(rdev->ring[idx].doorbell_index); mqd->queue_state.cp_hqd_pq_doorbell_control |= DOORBELL_EN; mqd->queue_state.cp_hqd_pq_doorbell_control &= ~(DOORBELL_SOURCE | DOORBELL_HIT); @@ -7839,14 +7840,14 @@ int cik_init(struct radeon_device *rdev) ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]; ring->ring_obj = NULL; r600_ring_init(rdev, ring, 1024 * 1024); - r = radeon_doorbell_get(rdev, &ring->doorbell_page_num); + r = radeon_doorbell_get(rdev, &ring->doorbell_index); if (r) return r; ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]; ring->ring_obj = NULL; r600_ring_init(rdev, ring, 1024 * 1024); - r = radeon_doorbell_get(rdev, &ring->doorbell_page_num); + r = radeon_doorbell_get(rdev, &ring->doorbell_index); if (r) return r; diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c index 9c9529de20ee..0300727a4f70 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -130,7 +130,7 @@ void cik_sdma_fence_ring_emit(struct radeon_device *rdev, * Add a DMA semaphore packet to the ring wait on or signal * other rings (CIK). */ -void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, +bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -141,6 +141,8 @@ void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits)); radeon_ring_write(ring, addr & 0xfffffff8); radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff); + + return true; } /** @@ -443,13 +445,8 @@ int cik_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c index 91bb470de0a3..920e1e4a52c5 100644 --- a/drivers/gpu/drm/radeon/cypress_dpm.c +++ b/drivers/gpu/drm/radeon/cypress_dpm.c @@ -299,7 +299,9 @@ void cypress_program_response_times(struct radeon_device *rdev) static int cypress_pcie_performance_request(struct radeon_device *rdev, u8 perf_req, bool advertise) { +#if defined(CONFIG_ACPI) struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev); +#endif u32 tmp; udelay(10); diff --git a/drivers/gpu/drm/radeon/evergreen_dma.c b/drivers/gpu/drm/radeon/evergreen_dma.c index 6a0656d00ed0..a37b54436382 100644 --- a/drivers/gpu/drm/radeon/evergreen_dma.c +++ b/drivers/gpu/drm/radeon/evergreen_dma.c @@ -131,13 +131,8 @@ int evergreen_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_dw = size_in_dw; diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index f26339028154..cdc003085a76 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -3445,9 +3445,9 @@ static int ni_enable_smc_cac(struct radeon_device *rdev, static int ni_pcie_performance_request(struct radeon_device *rdev, u8 perf_req, bool advertise) { +#if defined(CONFIG_ACPI) struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev); -#if defined(CONFIG_ACPI) if ((perf_req == PCIE_PERF_REQ_PECI_GEN1) || (perf_req == PCIE_PERF_REQ_PECI_GEN2)) { if (eg_pi->pcie_performance_request_registered == false) diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 784983d78158..10abc4d5a6cc 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -869,13 +869,14 @@ void r100_fence_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, RADEON_SW_INT_FIRE); } -void r100_semaphore_ring_emit(struct radeon_device *rdev, +bool r100_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) { /* Unused on older asics, since we don't have semaphores or multiple rings */ BUG(); + return false; } int r100_copy_blit(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 4e609e8a8d2b..9ad06732a78b 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2650,7 +2650,7 @@ void r600_fence_ring_emit(struct radeon_device *rdev, } } -void r600_semaphore_ring_emit(struct radeon_device *rdev, +bool r600_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -2664,6 +2664,8 @@ void r600_semaphore_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1)); radeon_ring_write(ring, addr & 0xffffffff); radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel); + + return true; } /** @@ -2706,13 +2708,8 @@ int r600_copy_cpdma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1)); radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2); diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c index 3b317456512a..7844d15c139f 100644 --- a/drivers/gpu/drm/radeon/r600_dma.c +++ b/drivers/gpu/drm/radeon/r600_dma.c @@ -311,7 +311,7 @@ void r600_dma_fence_ring_emit(struct radeon_device *rdev, * Add a DMA semaphore packet to the ring wait on or signal * other rings (r6xx-SI). */ -void r600_dma_semaphore_ring_emit(struct radeon_device *rdev, +bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -322,6 +322,8 @@ void r600_dma_semaphore_ring_emit(struct radeon_device *rdev, radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SEMAPHORE, 0, s, 0)); radeon_ring_write(ring, addr & 0xfffffffc); radeon_ring_write(ring, upper_32_bits(addr) & 0xff); + + return true; } /** @@ -462,13 +464,8 @@ int r600_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_dw = size_in_dw; diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index b9ee99258602..ecf2a3960c07 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -348,6 +348,7 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence **fence, i void radeon_fence_process(struct radeon_device *rdev, int ring); bool radeon_fence_signaled(struct radeon_fence *fence); int radeon_fence_wait(struct radeon_fence *fence, bool interruptible); +int radeon_fence_wait_locked(struct radeon_fence *fence); int radeon_fence_wait_next_locked(struct radeon_device *rdev, int ring); int radeon_fence_wait_empty_locked(struct radeon_device *rdev, int ring); int radeon_fence_wait_any(struct radeon_device *rdev, @@ -548,17 +549,20 @@ struct radeon_semaphore { struct radeon_sa_bo *sa_bo; signed waiters; uint64_t gpu_addr; + struct radeon_fence *sync_to[RADEON_NUM_RINGS]; }; int radeon_semaphore_create(struct radeon_device *rdev, struct radeon_semaphore **semaphore); -void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring, +bool radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring, struct radeon_semaphore *semaphore); -void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring, +bool radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring, struct radeon_semaphore *semaphore); +void radeon_semaphore_sync_to(struct radeon_semaphore *semaphore, + struct radeon_fence *fence); int radeon_semaphore_sync_rings(struct radeon_device *rdev, struct radeon_semaphore *semaphore, - int signaler, int waiter); + int waiting_ring); void radeon_semaphore_free(struct radeon_device *rdev, struct radeon_semaphore **semaphore, struct radeon_fence *fence); @@ -645,13 +649,15 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg); /* * GPU doorbell structures, functions & helpers */ +#define RADEON_MAX_DOORBELLS 1024 /* Reserve at most 1024 doorbell slots for radeon-owned rings. */ + struct radeon_doorbell { - u32 num_pages; - bool free[1024]; /* doorbell mmio */ - resource_size_t base; - resource_size_t size; - void __iomem *ptr; + resource_size_t base; + resource_size_t size; + u32 __iomem *ptr; + u32 num_doorbells; /* Number of doorbells actually reserved for radeon. */ + unsigned long used[DIV_ROUND_UP(RADEON_MAX_DOORBELLS, BITS_PER_LONG)]; }; int radeon_doorbell_get(struct radeon_device *rdev, u32 *page); @@ -765,7 +771,6 @@ struct radeon_ib { struct radeon_fence *fence; struct radeon_vm *vm; bool is_const_ib; - struct radeon_fence *sync_to[RADEON_NUM_RINGS]; struct radeon_semaphore *semaphore; }; @@ -799,8 +804,7 @@ struct radeon_ring { u32 pipe; u32 queue; struct radeon_bo *mqd_obj; - u32 doorbell_page_num; - u32 doorbell_offset; + u32 doorbell_index; unsigned wptr_offs; }; @@ -921,7 +925,6 @@ int radeon_ib_get(struct radeon_device *rdev, int ring, struct radeon_ib *ib, struct radeon_vm *vm, unsigned size); void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib); -void radeon_ib_sync_to(struct radeon_ib *ib, struct radeon_fence *fence); int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib, struct radeon_ib *const_ib); int radeon_ib_pool_init(struct radeon_device *rdev); @@ -1638,7 +1641,7 @@ struct radeon_asic_ring { /* command emmit functions */ void (*ib_execute)(struct radeon_device *rdev, struct radeon_ib *ib); void (*emit_fence)(struct radeon_device *rdev, struct radeon_fence *fence); - void (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp, + bool (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp, struct radeon_semaphore *semaphore, bool emit_wait); void (*vm_flush)(struct radeon_device *rdev, int ridx, struct radeon_vm *vm); @@ -1979,6 +1982,7 @@ struct cik_asic { unsigned tile_config; uint32_t tile_mode_array[32]; + uint32_t macrotile_mode_array[16]; }; union radeon_asic_config { @@ -2239,8 +2243,8 @@ void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v, u32 r100_io_rreg(struct radeon_device *rdev, u32 reg); void r100_io_wreg(struct radeon_device *rdev, u32 reg, u32 v); -u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset); -void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v); +u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 index); +void cik_mm_wdoorbell(struct radeon_device *rdev, u32 index, u32 v); /* * Cast helper @@ -2303,8 +2307,8 @@ void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v); #define RREG32_IO(reg) r100_io_rreg(rdev, (reg)) #define WREG32_IO(reg, v) r100_io_wreg(rdev, (reg), (v)) -#define RDOORBELL32(offset) cik_mm_rdoorbell(rdev, (offset)) -#define WDOORBELL32(offset, v) cik_mm_wdoorbell(rdev, (offset), (v)) +#define RDOORBELL32(index) cik_mm_rdoorbell(rdev, (index)) +#define WDOORBELL32(index, v) cik_mm_wdoorbell(rdev, (index), (v)) /* * Indirect registers accessor diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c index 10f98c7742d8..98a9074b306b 100644 --- a/drivers/gpu/drm/radeon/radeon_acpi.c +++ b/drivers/gpu/drm/radeon/radeon_acpi.c @@ -369,7 +369,7 @@ int radeon_atif_handler(struct radeon_device *rdev, return NOTIFY_DONE; /* Check pending SBIOS requests */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); count = radeon_atif_get_sbios_requests(handle, &req); if (count <= 0) @@ -556,7 +556,7 @@ int radeon_acpi_pcie_notify_device_ready(struct radeon_device *rdev) struct radeon_atcs *atcs = &rdev->atcs; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); if (!handle) return -EINVAL; @@ -596,7 +596,7 @@ int radeon_acpi_pcie_performance_request(struct radeon_device *rdev, u32 retry = 3; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); if (!handle) return -EINVAL; @@ -699,7 +699,7 @@ int radeon_acpi_init(struct radeon_device *rdev) int ret; /* Get the device handle */ - handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev); + handle = ACPI_HANDLE(&rdev->pdev->dev); /* No need to proceed if we're sure that ATIF is not supported */ if (!ASIC_IS_AVIVO(rdev) || !rdev->bios || !handle) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 50853c0cb49d..e354ce94cdd1 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2015,6 +2015,8 @@ static struct radeon_asic ci_asic = { .bandwidth_update = &dce8_bandwidth_update, .get_vblank_counter = &evergreen_get_vblank_counter, .wait_for_vblank = &dce4_wait_for_vblank, + .set_backlight_level = &atombios_set_backlight_level, + .get_backlight_level = &atombios_get_backlight_level, .hdmi_enable = &evergreen_hdmi_enable, .hdmi_setmode = &evergreen_hdmi_setmode, }, @@ -2114,6 +2116,8 @@ static struct radeon_asic kv_asic = { .bandwidth_update = &dce8_bandwidth_update, .get_vblank_counter = &evergreen_get_vblank_counter, .wait_for_vblank = &dce4_wait_for_vblank, + .set_backlight_level = &atombios_set_backlight_level, + .get_backlight_level = &atombios_get_backlight_level, .hdmi_enable = &evergreen_hdmi_enable, .hdmi_setmode = &evergreen_hdmi_setmode, }, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index f2833ee3a613..c9fd97b58076 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -80,7 +80,7 @@ int r100_irq_set(struct radeon_device *rdev); int r100_irq_process(struct radeon_device *rdev); void r100_fence_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void r100_semaphore_ring_emit(struct radeon_device *rdev, +bool r100_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *cp, struct radeon_semaphore *semaphore, bool emit_wait); @@ -313,13 +313,13 @@ int r600_cs_parse(struct radeon_cs_parser *p); int r600_dma_cs_parse(struct radeon_cs_parser *p); void r600_fence_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void r600_semaphore_ring_emit(struct radeon_device *rdev, +bool r600_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *cp, struct radeon_semaphore *semaphore, bool emit_wait); void r600_dma_fence_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void r600_dma_semaphore_ring_emit(struct radeon_device *rdev, +bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait); @@ -566,10 +566,6 @@ int sumo_dpm_force_performance_level(struct radeon_device *rdev, */ void cayman_fence_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void cayman_uvd_semaphore_emit(struct radeon_device *rdev, - struct radeon_ring *ring, - struct radeon_semaphore *semaphore, - bool emit_wait); void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev); int cayman_init(struct radeon_device *rdev); void cayman_fini(struct radeon_device *rdev); @@ -697,7 +693,7 @@ void cik_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v); int cik_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk); void cik_sdma_fence_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, +bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait); @@ -717,7 +713,7 @@ void cik_fence_gfx_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); void cik_fence_compute_ring_emit(struct radeon_device *rdev, struct radeon_fence *fence); -void cik_semaphore_ring_emit(struct radeon_device *rdev, +bool cik_semaphore_ring_emit(struct radeon_device *rdev, struct radeon_ring *cp, struct radeon_semaphore *semaphore, bool emit_wait); @@ -807,7 +803,7 @@ void uvd_v1_0_stop(struct radeon_device *rdev); int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring); int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring); -void uvd_v1_0_semaphore_emit(struct radeon_device *rdev, +bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait); @@ -819,7 +815,7 @@ void uvd_v2_2_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence); /* uvd v3.1 */ -void uvd_v3_1_semaphore_emit(struct radeon_device *rdev, +bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait); diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c index 6153ec18943a..9d302eaeea15 100644 --- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c +++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c @@ -8,8 +8,7 @@ */ #include <linux/vga_switcheroo.h> #include <linux/slab.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include <linux/pci.h> #include "radeon_acpi.h" @@ -447,7 +446,7 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev) acpi_handle dhandle, atpx_handle; acpi_status status; - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; @@ -493,7 +492,7 @@ static int radeon_atpx_init(void) */ static int radeon_atpx_get_client_id(struct pci_dev *pdev) { - if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev)) + if (radeon_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev)) return VGA_SWITCHEROO_IGD; else return VGA_SWITCHEROO_DIS; diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index c155d6f3fa68..b3633d9a5317 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -185,7 +185,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev) return false; while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) { - dhandle = DEVICE_ACPI_HANDLE(&pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) continue; diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 26ca223d12d6..f41594b2eeac 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -159,7 +159,8 @@ static void radeon_cs_sync_rings(struct radeon_cs_parser *p) if (!p->relocs[i].robj) continue; - radeon_ib_sync_to(&p->ib, p->relocs[i].robj->tbo.sync_obj); + radeon_semaphore_sync_to(p->ib.semaphore, + p->relocs[i].robj->tbo.sync_obj); } } @@ -411,9 +412,9 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev, goto out; } radeon_cs_sync_rings(parser); - radeon_ib_sync_to(&parser->ib, vm->fence); - radeon_ib_sync_to(&parser->ib, radeon_vm_grab_id( - rdev, vm, parser->ring)); + radeon_semaphore_sync_to(parser->ib.semaphore, vm->fence); + radeon_semaphore_sync_to(parser->ib.semaphore, + radeon_vm_grab_id(rdev, vm, parser->ring)); if ((rdev->family >= CHIP_TAHITI) && (parser->chunk_const_ib_idx != -1)) { diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index b9234c43f43d..39b033b441d2 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -251,28 +251,23 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg) */ int radeon_doorbell_init(struct radeon_device *rdev) { - int i; - /* doorbell bar mapping */ rdev->doorbell.base = pci_resource_start(rdev->pdev, 2); rdev->doorbell.size = pci_resource_len(rdev->pdev, 2); - /* limit to 4 MB for now */ - if (rdev->doorbell.size > (4 * 1024 * 1024)) - rdev->doorbell.size = 4 * 1024 * 1024; + rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS); + if (rdev->doorbell.num_doorbells == 0) + return -EINVAL; - rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.size); + rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32)); if (rdev->doorbell.ptr == NULL) { return -ENOMEM; } DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base); DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size); - rdev->doorbell.num_pages = rdev->doorbell.size / PAGE_SIZE; + memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used)); - for (i = 0; i < rdev->doorbell.num_pages; i++) { - rdev->doorbell.free[i] = true; - } return 0; } @@ -290,40 +285,38 @@ void radeon_doorbell_fini(struct radeon_device *rdev) } /** - * radeon_doorbell_get - Allocate a doorbell page + * radeon_doorbell_get - Allocate a doorbell entry * * @rdev: radeon_device pointer - * @doorbell: doorbell page number + * @doorbell: doorbell index * - * Allocate a doorbell page for use by the driver (all asics). + * Allocate a doorbell for use by the driver (all asics). * Returns 0 on success or -EINVAL on failure. */ int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell) { - int i; - - for (i = 0; i < rdev->doorbell.num_pages; i++) { - if (rdev->doorbell.free[i]) { - rdev->doorbell.free[i] = false; - *doorbell = i; - return 0; - } + unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells); + if (offset < rdev->doorbell.num_doorbells) { + __set_bit(offset, rdev->doorbell.used); + *doorbell = offset; + return 0; + } else { + return -EINVAL; } - return -EINVAL; } /** - * radeon_doorbell_free - Free a doorbell page + * radeon_doorbell_free - Free a doorbell entry * * @rdev: radeon_device pointer - * @doorbell: doorbell page number + * @doorbell: doorbell index * - * Free a doorbell page allocated for use by the driver (all asics) + * Free a doorbell allocated for use by the driver (all asics) */ void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell) { - if (doorbell < rdev->doorbell.num_pages) - rdev->doorbell.free[doorbell] = true; + if (doorbell < rdev->doorbell.num_doorbells) + __clear_bit(doorbell, rdev->doorbell.used); } /* diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 1aee32213f66..9f5ff28864f6 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -76,9 +76,10 @@ * 2.32.0 - new info request for rings working * 2.33.0 - Add SI tiling mode array query * 2.34.0 - Add CIK tiling mode array query + * 2.35.0 - Add CIK macrotile mode array query */ #define KMS_DRIVER_MAJOR 2 -#define KMS_DRIVER_MINOR 34 +#define KMS_DRIVER_MINOR 35 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index 281d14c22a47..d3a86e43c012 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -472,6 +472,36 @@ int radeon_fence_wait_any(struct radeon_device *rdev, } /** + * radeon_fence_wait_locked - wait for a fence to signal + * + * @fence: radeon fence object + * + * Wait for the requested fence to signal (all asics). + * Returns 0 if the fence has passed, error for all other cases. + */ +int radeon_fence_wait_locked(struct radeon_fence *fence) +{ + uint64_t seq[RADEON_NUM_RINGS] = {}; + int r; + + if (fence == NULL) { + WARN(1, "Querying an invalid fence : %p !\n", fence); + return -EINVAL; + } + + seq[fence->ring] = fence->seq; + if (seq[fence->ring] == RADEON_FENCE_SIGNALED_SEQ) + return 0; + + r = radeon_fence_wait_seq(fence->rdev, seq, false, false); + if (r) + return r; + + fence->seq = RADEON_FENCE_SIGNALED_SEQ; + return 0; +} + +/** * radeon_fence_wait_next_locked - wait for the next fence to signal * * @rdev: radeon device pointer diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 8a83b89d4709..3044e504f4ec 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -651,7 +651,7 @@ retry: radeon_asic_vm_set_page(rdev, &ib, vm->pd_gpu_addr, 0, pd_entries, 0, 0); - radeon_ib_sync_to(&ib, vm->fence); + radeon_semaphore_sync_to(ib.semaphore, vm->fence); r = radeon_ib_schedule(rdev, &ib, NULL); if (r) { radeon_ib_free(rdev, &ib); @@ -1209,6 +1209,8 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev, return -ENOMEM; r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, ndw * 4); + if (r) + return r; ib.length_dw = 0; r = radeon_vm_update_pdes(rdev, vm, &ib, bo_va->soffset, bo_va->eoffset); @@ -1220,7 +1222,7 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev, radeon_vm_update_ptes(rdev, vm, &ib, bo_va->soffset, bo_va->eoffset, addr, radeon_vm_page_flags(bo_va->flags)); - radeon_ib_sync_to(&ib, vm->fence); + radeon_semaphore_sync_to(ib.semaphore, vm->fence); r = radeon_ib_schedule(rdev, &ib, NULL); if (r) { radeon_ib_free(rdev, &ib); diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index bb8710531a1b..55d0b474bd37 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -340,7 +340,7 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) break; case RADEON_INFO_BACKEND_MAP: if (rdev->family >= CHIP_BONAIRE) - return -EINVAL; + *value = rdev->config.cik.backend_map; else if (rdev->family >= CHIP_TAHITI) *value = rdev->config.si.backend_map; else if (rdev->family >= CHIP_CAYMAN) @@ -449,6 +449,15 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return -EINVAL; } break; + case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY: + if (rdev->family >= CHIP_BONAIRE) { + value = rdev->config.cik.macrotile_mode_array; + value_size = sizeof(uint32_t)*16; + } else { + DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n"); + return -EINVAL; + } + break; case RADEON_INFO_SI_CP_DMA_COMPUTE: *value = 1; break; diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c index 0c7b8c66301b..0b158f98d287 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c @@ -422,6 +422,7 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc, /* Pin framebuffer & get tilling informations */ obj = radeon_fb->obj; rbo = gem_to_radeon_bo(obj); +retry: r = radeon_bo_reserve(rbo, false); if (unlikely(r != 0)) return r; @@ -430,6 +431,33 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc, &base); if (unlikely(r != 0)) { radeon_bo_unreserve(rbo); + + /* On old GPU like RN50 with little vram pining can fails because + * current fb is taking all space needed. So instead of unpining + * the old buffer after pining the new one, first unpin old one + * and then retry pining new one. + * + * As only master can set mode only master can pin and it is + * unlikely the master client will race with itself especialy + * on those old gpu with single crtc. + * + * We don't shutdown the display controller because new buffer + * will end up in same spot. + */ + if (!atomic && fb && fb != crtc->fb) { + struct radeon_bo *old_rbo; + unsigned long nsize, osize; + + old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj); + osize = radeon_bo_size(old_rbo); + nsize = radeon_bo_size(rbo); + if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) { + radeon_bo_unpin(old_rbo); + radeon_bo_unreserve(old_rbo); + fb = NULL; + goto retry; + } + } return -EINVAL; } radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL); diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 866ace070b91..d1385ccc672c 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -1252,7 +1252,6 @@ int radeon_pm_init(struct radeon_device *rdev) case CHIP_RS780: case CHIP_RS880: case CHIP_CAYMAN: - case CHIP_ARUBA: case CHIP_BONAIRE: case CHIP_KABINI: case CHIP_KAVERI: @@ -1284,6 +1283,7 @@ int radeon_pm_init(struct radeon_device *rdev) case CHIP_BARTS: case CHIP_TURKS: case CHIP_CAICOS: + case CHIP_ARUBA: case CHIP_TAHITI: case CHIP_PITCAIRN: case CHIP_VERDE: diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 18254e1c3e71..9214403ae173 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -61,7 +61,7 @@ int radeon_ib_get(struct radeon_device *rdev, int ring, struct radeon_ib *ib, struct radeon_vm *vm, unsigned size) { - int i, r; + int r; r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true); if (r) { @@ -87,8 +87,6 @@ int radeon_ib_get(struct radeon_device *rdev, int ring, ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo); } ib->is_const_ib = false; - for (i = 0; i < RADEON_NUM_RINGS; ++i) - ib->sync_to[i] = NULL; return 0; } @@ -109,25 +107,6 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib) } /** - * radeon_ib_sync_to - sync to fence before executing the IB - * - * @ib: IB object to add fence to - * @fence: fence to sync to - * - * Sync to the fence before executing the IB - */ -void radeon_ib_sync_to(struct radeon_ib *ib, struct radeon_fence *fence) -{ - struct radeon_fence *other; - - if (!fence) - return; - - other = ib->sync_to[fence->ring]; - ib->sync_to[fence->ring] = radeon_fence_later(fence, other); -} - -/** * radeon_ib_schedule - schedule an IB (Indirect Buffer) on the ring * * @rdev: radeon_device pointer @@ -151,8 +130,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib, struct radeon_ib *const_ib) { struct radeon_ring *ring = &rdev->ring[ib->ring]; - bool need_sync = false; - int i, r = 0; + int r = 0; if (!ib->length_dw || !ring->ready) { /* TODO: Nothings in the ib we should report. */ @@ -166,19 +144,15 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib, dev_err(rdev->dev, "scheduling IB failed (%d).\n", r); return r; } - for (i = 0; i < RADEON_NUM_RINGS; ++i) { - struct radeon_fence *fence = ib->sync_to[i]; - if (radeon_fence_need_sync(fence, ib->ring)) { - need_sync = true; - radeon_semaphore_sync_rings(rdev, ib->semaphore, - fence->ring, ib->ring); - radeon_fence_note_sync(fence, ib->ring); - } - } - /* immediately free semaphore when we don't need to sync */ - if (!need_sync) { - radeon_semaphore_free(rdev, &ib->semaphore, NULL); + + /* sync with other rings */ + r = radeon_semaphore_sync_rings(rdev, ib->semaphore, ib->ring); + if (r) { + dev_err(rdev->dev, "failed to sync rings (%d)\n", r); + radeon_ring_unlock_undo(rdev, ring); + return r; } + /* if we can't remember our last VM flush then flush now! */ /* XXX figure out why we have to flush for every IB */ if (ib->vm /*&& !ib->vm->last_flush*/) { diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c index 8dcc20f53d73..2b42aa1914f2 100644 --- a/drivers/gpu/drm/radeon/radeon_semaphore.c +++ b/drivers/gpu/drm/radeon/radeon_semaphore.c @@ -29,12 +29,12 @@ */ #include <drm/drmP.h> #include "radeon.h" - +#include "radeon_trace.h" int radeon_semaphore_create(struct radeon_device *rdev, struct radeon_semaphore **semaphore) { - int r; + int i, r; *semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL); if (*semaphore == NULL) { @@ -50,54 +50,121 @@ int radeon_semaphore_create(struct radeon_device *rdev, (*semaphore)->waiters = 0; (*semaphore)->gpu_addr = radeon_sa_bo_gpu_addr((*semaphore)->sa_bo); *((uint64_t*)radeon_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0; + + for (i = 0; i < RADEON_NUM_RINGS; ++i) + (*semaphore)->sync_to[i] = NULL; + return 0; } -void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring, +bool radeon_semaphore_emit_signal(struct radeon_device *rdev, int ridx, struct radeon_semaphore *semaphore) { - --semaphore->waiters; - radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false); + struct radeon_ring *ring = &rdev->ring[ridx]; + + trace_radeon_semaphore_signale(ridx, semaphore); + + if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, false)) { + --semaphore->waiters; + + /* for debugging lockup only, used by sysfs debug files */ + ring->last_semaphore_signal_addr = semaphore->gpu_addr; + return true; + } + return false; } -void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring, +bool radeon_semaphore_emit_wait(struct radeon_device *rdev, int ridx, struct radeon_semaphore *semaphore) { - ++semaphore->waiters; - radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true); + struct radeon_ring *ring = &rdev->ring[ridx]; + + trace_radeon_semaphore_wait(ridx, semaphore); + + if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, true)) { + ++semaphore->waiters; + + /* for debugging lockup only, used by sysfs debug files */ + ring->last_semaphore_wait_addr = semaphore->gpu_addr; + return true; + } + return false; +} + +/** + * radeon_semaphore_sync_to - use the semaphore to sync to a fence + * + * @semaphore: semaphore object to add fence to + * @fence: fence to sync to + * + * Sync to the fence using this semaphore object + */ +void radeon_semaphore_sync_to(struct radeon_semaphore *semaphore, + struct radeon_fence *fence) +{ + struct radeon_fence *other; + + if (!fence) + return; + + other = semaphore->sync_to[fence->ring]; + semaphore->sync_to[fence->ring] = radeon_fence_later(fence, other); } -/* caller must hold ring lock */ +/** + * radeon_semaphore_sync_rings - sync ring to all registered fences + * + * @rdev: radeon_device pointer + * @semaphore: semaphore object to use for sync + * @ring: ring that needs sync + * + * Ensure that all registered fences are signaled before letting + * the ring continue. The caller must hold the ring lock. + */ int radeon_semaphore_sync_rings(struct radeon_device *rdev, struct radeon_semaphore *semaphore, - int signaler, int waiter) + int ring) { - int r; + int i, r; - /* no need to signal and wait on the same ring */ - if (signaler == waiter) { - return 0; - } + for (i = 0; i < RADEON_NUM_RINGS; ++i) { + struct radeon_fence *fence = semaphore->sync_to[i]; - /* prevent GPU deadlocks */ - if (!rdev->ring[signaler].ready) { - dev_err(rdev->dev, "Trying to sync to a disabled ring!"); - return -EINVAL; - } + /* check if we really need to sync */ + if (!radeon_fence_need_sync(fence, ring)) + continue; - r = radeon_ring_alloc(rdev, &rdev->ring[signaler], 8); - if (r) { - return r; - } - radeon_semaphore_emit_signal(rdev, signaler, semaphore); - radeon_ring_commit(rdev, &rdev->ring[signaler]); + /* prevent GPU deadlocks */ + if (!rdev->ring[i].ready) { + dev_err(rdev->dev, "Syncing to a disabled ring!"); + return -EINVAL; + } - /* we assume caller has already allocated space on waiters ring */ - radeon_semaphore_emit_wait(rdev, waiter, semaphore); + /* allocate enough space for sync command */ + r = radeon_ring_alloc(rdev, &rdev->ring[i], 16); + if (r) { + return r; + } - /* for debugging lockup only, used by sysfs debug files */ - rdev->ring[signaler].last_semaphore_signal_addr = semaphore->gpu_addr; - rdev->ring[waiter].last_semaphore_wait_addr = semaphore->gpu_addr; + /* emit the signal semaphore */ + if (!radeon_semaphore_emit_signal(rdev, i, semaphore)) { + /* signaling wasn't successful wait manually */ + radeon_ring_undo(&rdev->ring[i]); + radeon_fence_wait_locked(fence); + continue; + } + + /* we assume caller has already allocated space on waiters ring */ + if (!radeon_semaphore_emit_wait(rdev, ring, semaphore)) { + /* waiting wasn't successful wait manually */ + radeon_ring_undo(&rdev->ring[i]); + radeon_fence_wait_locked(fence); + continue; + } + + radeon_ring_commit(rdev, &rdev->ring[i]); + radeon_fence_note_sync(fence, ring); + } return 0; } diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h index 811bca691b36..9f0e18172b6e 100644 --- a/drivers/gpu/drm/radeon/radeon_trace.h +++ b/drivers/gpu/drm/radeon/radeon_trace.h @@ -111,6 +111,42 @@ DEFINE_EVENT(radeon_fence_request, radeon_fence_wait_end, TP_ARGS(dev, seqno) ); +DECLARE_EVENT_CLASS(radeon_semaphore_request, + + TP_PROTO(int ring, struct radeon_semaphore *sem), + + TP_ARGS(ring, sem), + + TP_STRUCT__entry( + __field(int, ring) + __field(signed, waiters) + __field(uint64_t, gpu_addr) + ), + + TP_fast_assign( + __entry->ring = ring; + __entry->waiters = sem->waiters; + __entry->gpu_addr = sem->gpu_addr; + ), + + TP_printk("ring=%u, waiters=%d, addr=%010Lx", __entry->ring, + __entry->waiters, __entry->gpu_addr) +); + +DEFINE_EVENT(radeon_semaphore_request, radeon_semaphore_signale, + + TP_PROTO(int ring, struct radeon_semaphore *sem), + + TP_ARGS(ring, sem) +); + +DEFINE_EVENT(radeon_semaphore_request, radeon_semaphore_wait, + + TP_PROTO(int ring, struct radeon_semaphore *sem), + + TP_ARGS(ring, sem) +); + #endif /* This part must be outside protection */ diff --git a/drivers/gpu/drm/radeon/rv770_dma.c b/drivers/gpu/drm/radeon/rv770_dma.c index f9b02e3d6830..aca8cbe8a335 100644 --- a/drivers/gpu/drm/radeon/rv770_dma.c +++ b/drivers/gpu/drm/radeon/rv770_dma.c @@ -66,13 +66,8 @@ int rv770_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_dw = size_in_dw; diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c index 8e8f46133532..59be2cfcbb47 100644 --- a/drivers/gpu/drm/radeon/si_dma.c +++ b/drivers/gpu/drm/radeon/si_dma.c @@ -195,13 +195,8 @@ int si_copy_dma(struct radeon_device *rdev, return r; } - if (radeon_fence_need_sync(*fence, ring->idx)) { - radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring, - ring->idx); - radeon_fence_note_sync(*fence, ring->idx); - } else { - radeon_semaphore_free(rdev, &sem, NULL); - } + radeon_semaphore_sync_to(sem, *fence); + radeon_semaphore_sync_rings(rdev, sem, ring->idx); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index 9364129ba292..d700698a1f22 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1873,9 +1873,9 @@ int trinity_dpm_init(struct radeon_device *rdev) pi->enable_sclk_ds = true; pi->enable_gfx_power_gating = true; pi->enable_gfx_clock_gating = true; - pi->enable_mg_clock_gating = true; - pi->enable_gfx_dynamic_mgpg = true; /* ??? */ - pi->override_dynamic_mgpg = true; + pi->enable_mg_clock_gating = false; + pi->enable_gfx_dynamic_mgpg = false; + pi->override_dynamic_mgpg = false; pi->enable_auto_thermal_throttling = true; pi->voltage_drop_in_dce = false; /* need to restructure dpm/modeset interaction */ pi->uvd_dpm = true; /* ??? */ diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c index 7266805d9786..d4a68af1a279 100644 --- a/drivers/gpu/drm/radeon/uvd_v1_0.c +++ b/drivers/gpu/drm/radeon/uvd_v1_0.c @@ -357,7 +357,7 @@ int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring) * * Emit a semaphore command (either wait or signal) to the UVD ring. */ -void uvd_v1_0_semaphore_emit(struct radeon_device *rdev, +bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -372,6 +372,8 @@ void uvd_v1_0_semaphore_emit(struct radeon_device *rdev, radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); radeon_ring_write(ring, emit_wait ? 1 : 0); + + return true; } /** diff --git a/drivers/gpu/drm/radeon/uvd_v3_1.c b/drivers/gpu/drm/radeon/uvd_v3_1.c index 5b6fa1f62d4e..d722db2cf340 100644 --- a/drivers/gpu/drm/radeon/uvd_v3_1.c +++ b/drivers/gpu/drm/radeon/uvd_v3_1.c @@ -37,7 +37,7 @@ * * Emit a semaphore command (either wait or signal) to the UVD ring. */ -void uvd_v3_1_semaphore_emit(struct radeon_device *rdev, +bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, struct radeon_ring *ring, struct radeon_semaphore *semaphore, bool emit_wait) @@ -52,4 +52,6 @@ void uvd_v3_1_semaphore_emit(struct radeon_device *rdev, radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0)); + + return true; } diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 8d5a646ebe6a..07e02c4bf5a8 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -151,7 +151,7 @@ static void ttm_bo_release_list(struct kref *list_kref) atomic_dec(&bo->glob->bo_count); if (bo->resv == &bo->ttm_resv) reservation_object_fini(&bo->ttm_resv); - + mutex_destroy(&bo->wu_mutex); if (bo->destroy) bo->destroy(bo); else { @@ -1123,6 +1123,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, INIT_LIST_HEAD(&bo->ddestroy); INIT_LIST_HEAD(&bo->swap); INIT_LIST_HEAD(&bo->io_reserve_lru); + mutex_init(&bo->wu_mutex); bo->bdev = bdev; bo->glob = bdev->glob; bo->type = type; @@ -1704,3 +1705,35 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev) ; } EXPORT_SYMBOL(ttm_bo_swapout_all); + +/** + * ttm_bo_wait_unreserved - interruptible wait for a buffer object to become + * unreserved + * + * @bo: Pointer to buffer + */ +int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo) +{ + int ret; + + /* + * In the absense of a wait_unlocked API, + * Use the bo::wu_mutex to avoid triggering livelocks due to + * concurrent use of this function. Note that this use of + * bo::wu_mutex can go away if we change locking order to + * mmap_sem -> bo::reserve. + */ + ret = mutex_lock_interruptible(&bo->wu_mutex); + if (unlikely(ret != 0)) + return -ERESTARTSYS; + if (!ww_mutex_is_locked(&bo->resv->lock)) + goto out_unlock; + ret = ttm_bo_reserve_nolru(bo, true, false, false, NULL); + if (unlikely(ret != 0)) + goto out_unlock; + ww_mutex_unlock(&bo->resv->lock); + +out_unlock: + mutex_unlock(&bo->wu_mutex); + return ret; +} diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 4834c463c38b..15b86a94949d 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -350,10 +350,13 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, goto out2; /* - * Move nonexistent data. NOP. + * Don't move nonexistent data. Clear destination instead. */ - if (old_iomap == NULL && ttm == NULL) + if (old_iomap == NULL && + (ttm == NULL || ttm->state == tt_unpopulated)) { + memset_io(new_iomap, 0, new_mem->num_pages*PAGE_SIZE); goto out2; + } /* * TTM might be null for moves within the same region. diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index ac617f3ecd0c..b249ab9b1eb2 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -107,13 +107,28 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) /* * Work around locking order reversal in fault / nopfn * between mmap_sem and bo_reserve: Perform a trylock operation - * for reserve, and if it fails, retry the fault after scheduling. + * for reserve, and if it fails, retry the fault after waiting + * for the buffer to become unreserved. */ - - ret = ttm_bo_reserve(bo, true, true, false, 0); + ret = ttm_bo_reserve(bo, true, true, false, NULL); if (unlikely(ret != 0)) { - if (ret == -EBUSY) - set_need_resched(); + if (ret != -EBUSY) + return VM_FAULT_NOPAGE; + + if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) { + if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) { + up_read(&vma->vm_mm->mmap_sem); + (void) ttm_bo_wait_unreserved(bo); + } + + return VM_FAULT_RETRY; + } + + /* + * If we'd want to change locking order to + * mmap_sem -> bo::reserve, we'd use a blocking reserve here + * instead of retrying the fault... + */ return VM_FAULT_NOPAGE; } @@ -123,7 +138,6 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) case 0: break; case -EBUSY: - set_need_resched(); case -ERESTARTSYS: retval = VM_FAULT_NOPAGE; goto out_unlock; diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c index 6c911789ae5c..479e9418e3d7 100644 --- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c +++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c @@ -32,8 +32,7 @@ #include <linux/sched.h> #include <linux/module.h> -static void ttm_eu_backoff_reservation_locked(struct list_head *list, - struct ww_acquire_ctx *ticket) +static void ttm_eu_backoff_reservation_locked(struct list_head *list) { struct ttm_validate_buffer *entry; @@ -93,8 +92,9 @@ void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket, entry = list_first_entry(list, struct ttm_validate_buffer, head); glob = entry->bo->glob; spin_lock(&glob->lru_lock); - ttm_eu_backoff_reservation_locked(list, ticket); - ww_acquire_fini(ticket); + ttm_eu_backoff_reservation_locked(list); + if (ticket) + ww_acquire_fini(ticket); spin_unlock(&glob->lru_lock); } EXPORT_SYMBOL(ttm_eu_backoff_reservation); @@ -130,7 +130,8 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket, entry = list_first_entry(list, struct ttm_validate_buffer, head); glob = entry->bo->glob; - ww_acquire_init(ticket, &reservation_ww_class); + if (ticket) + ww_acquire_init(ticket, &reservation_ww_class); retry: list_for_each_entry(entry, list, head) { struct ttm_buffer_object *bo = entry->bo; @@ -139,16 +140,17 @@ retry: if (entry->reserved) continue; - - ret = ttm_bo_reserve_nolru(bo, true, false, true, ticket); + ret = ttm_bo_reserve_nolru(bo, true, (ticket == NULL), true, + ticket); if (ret == -EDEADLK) { /* uh oh, we lost out, drop every reservation and try * to only reserve this buffer, then start over if * this succeeds. */ + BUG_ON(ticket == NULL); spin_lock(&glob->lru_lock); - ttm_eu_backoff_reservation_locked(list, ticket); + ttm_eu_backoff_reservation_locked(list); spin_unlock(&glob->lru_lock); ttm_eu_list_ref_sub(list); ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock, @@ -175,7 +177,8 @@ retry: } } - ww_acquire_done(ticket); + if (ticket) + ww_acquire_done(ticket); spin_lock(&glob->lru_lock); ttm_eu_del_from_lru_locked(list); spin_unlock(&glob->lru_lock); @@ -184,12 +187,14 @@ retry: err: spin_lock(&glob->lru_lock); - ttm_eu_backoff_reservation_locked(list, ticket); + ttm_eu_backoff_reservation_locked(list); spin_unlock(&glob->lru_lock); ttm_eu_list_ref_sub(list); err_fini: - ww_acquire_done(ticket); - ww_acquire_fini(ticket); + if (ticket) { + ww_acquire_done(ticket); + ww_acquire_fini(ticket); + } return ret; } EXPORT_SYMBOL(ttm_eu_reserve_buffers); @@ -224,7 +229,8 @@ void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket, } spin_unlock(&bdev->fence_lock); spin_unlock(&glob->lru_lock); - ww_acquire_fini(ticket); + if (ticket) + ww_acquire_fini(ticket); list_for_each_entry(entry, list, head) { if (entry->old_sync_obj) diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c index a868176c258a..6fe7b92a82d1 100644 --- a/drivers/gpu/drm/ttm/ttm_object.c +++ b/drivers/gpu/drm/ttm/ttm_object.c @@ -1,6 +1,6 @@ /************************************************************************** * - * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA + * Copyright (c) 2009-2013 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -26,6 +26,12 @@ **************************************************************************/ /* * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> + * + * While no substantial code is shared, the prime code is inspired by + * drm_prime.c, with + * Authors: + * Dave Airlie <airlied@redhat.com> + * Rob Clark <rob.clark@linaro.org> */ /** @file ttm_ref_object.c * @@ -34,6 +40,7 @@ * and release on file close. */ + /** * struct ttm_object_file * @@ -84,6 +91,9 @@ struct ttm_object_device { struct drm_open_hash object_hash; atomic_t object_count; struct ttm_mem_global *mem_glob; + struct dma_buf_ops ops; + void (*dmabuf_release)(struct dma_buf *dma_buf); + size_t dma_buf_size; }; /** @@ -116,6 +126,8 @@ struct ttm_ref_object { struct ttm_object_file *tfile; }; +static void ttm_prime_dmabuf_release(struct dma_buf *dma_buf); + static inline struct ttm_object_file * ttm_object_file_ref(struct ttm_object_file *tfile) { @@ -416,9 +428,10 @@ out_err: } EXPORT_SYMBOL(ttm_object_file_init); -struct ttm_object_device *ttm_object_device_init(struct ttm_mem_global - *mem_glob, - unsigned int hash_order) +struct ttm_object_device * +ttm_object_device_init(struct ttm_mem_global *mem_glob, + unsigned int hash_order, + const struct dma_buf_ops *ops) { struct ttm_object_device *tdev = kmalloc(sizeof(*tdev), GFP_KERNEL); int ret; @@ -430,10 +443,17 @@ struct ttm_object_device *ttm_object_device_init(struct ttm_mem_global spin_lock_init(&tdev->object_lock); atomic_set(&tdev->object_count, 0); ret = drm_ht_create(&tdev->object_hash, hash_order); + if (ret != 0) + goto out_no_object_hash; - if (likely(ret == 0)) - return tdev; + tdev->ops = *ops; + tdev->dmabuf_release = tdev->ops.release; + tdev->ops.release = ttm_prime_dmabuf_release; + tdev->dma_buf_size = ttm_round_pot(sizeof(struct dma_buf)) + + ttm_round_pot(sizeof(struct file)); + return tdev; +out_no_object_hash: kfree(tdev); return NULL; } @@ -452,3 +472,225 @@ void ttm_object_device_release(struct ttm_object_device **p_tdev) kfree(tdev); } EXPORT_SYMBOL(ttm_object_device_release); + +/** + * get_dma_buf_unless_doomed - get a dma_buf reference if possible. + * + * @dma_buf: Non-refcounted pointer to a struct dma-buf. + * + * Obtain a file reference from a lookup structure that doesn't refcount + * the file, but synchronizes with its release method to make sure it has + * not been freed yet. See for example kref_get_unless_zero documentation. + * Returns true if refcounting succeeds, false otherwise. + * + * Nobody really wants this as a public API yet, so let it mature here + * for some time... + */ +static bool __must_check get_dma_buf_unless_doomed(struct dma_buf *dmabuf) +{ + return atomic_long_inc_not_zero(&dmabuf->file->f_count) != 0L; +} + +/** + * ttm_prime_refcount_release - refcount release method for a prime object. + * + * @p_base: Pointer to ttm_base_object pointer. + * + * This is a wrapper that calls the refcount_release founction of the + * underlying object. At the same time it cleans up the prime object. + * This function is called when all references to the base object we + * derive from are gone. + */ +static void ttm_prime_refcount_release(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct ttm_prime_object *prime; + + *p_base = NULL; + prime = container_of(base, struct ttm_prime_object, base); + BUG_ON(prime->dma_buf != NULL); + mutex_destroy(&prime->mutex); + if (prime->refcount_release) + prime->refcount_release(&base); +} + +/** + * ttm_prime_dmabuf_release - Release method for the dma-bufs we export + * + * @dma_buf: + * + * This function first calls the dma_buf release method the driver + * provides. Then it cleans up our dma_buf pointer used for lookup, + * and finally releases the reference the dma_buf has on our base + * object. + */ +static void ttm_prime_dmabuf_release(struct dma_buf *dma_buf) +{ + struct ttm_prime_object *prime = + (struct ttm_prime_object *) dma_buf->priv; + struct ttm_base_object *base = &prime->base; + struct ttm_object_device *tdev = base->tfile->tdev; + + if (tdev->dmabuf_release) + tdev->dmabuf_release(dma_buf); + mutex_lock(&prime->mutex); + if (prime->dma_buf == dma_buf) + prime->dma_buf = NULL; + mutex_unlock(&prime->mutex); + ttm_mem_global_free(tdev->mem_glob, tdev->dma_buf_size); + ttm_base_object_unref(&base); +} + +/** + * ttm_prime_fd_to_handle - Get a base object handle from a prime fd + * + * @tfile: A struct ttm_object_file identifying the caller. + * @fd: The prime / dmabuf fd. + * @handle: The returned handle. + * + * This function returns a handle to an object that previously exported + * a dma-buf. Note that we don't handle imports yet, because we simply + * have no consumers of that implementation. + */ +int ttm_prime_fd_to_handle(struct ttm_object_file *tfile, + int fd, u32 *handle) +{ + struct ttm_object_device *tdev = tfile->tdev; + struct dma_buf *dma_buf; + struct ttm_prime_object *prime; + struct ttm_base_object *base; + int ret; + + dma_buf = dma_buf_get(fd); + if (IS_ERR(dma_buf)) + return PTR_ERR(dma_buf); + + if (dma_buf->ops != &tdev->ops) + return -ENOSYS; + + prime = (struct ttm_prime_object *) dma_buf->priv; + base = &prime->base; + *handle = base->hash.key; + ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL); + + dma_buf_put(dma_buf); + + return ret; +} +EXPORT_SYMBOL_GPL(ttm_prime_fd_to_handle); + +/** + * ttm_prime_handle_to_fd - Return a dma_buf fd from a ttm prime object + * + * @tfile: Struct ttm_object_file identifying the caller. + * @handle: Handle to the object we're exporting from. + * @flags: flags for dma-buf creation. We just pass them on. + * @prime_fd: The returned file descriptor. + * + */ +int ttm_prime_handle_to_fd(struct ttm_object_file *tfile, + uint32_t handle, uint32_t flags, + int *prime_fd) +{ + struct ttm_object_device *tdev = tfile->tdev; + struct ttm_base_object *base; + struct dma_buf *dma_buf; + struct ttm_prime_object *prime; + int ret; + + base = ttm_base_object_lookup(tfile, handle); + if (unlikely(base == NULL || + base->object_type != ttm_prime_type)) { + ret = -ENOENT; + goto out_unref; + } + + prime = container_of(base, struct ttm_prime_object, base); + if (unlikely(!base->shareable)) { + ret = -EPERM; + goto out_unref; + } + + ret = mutex_lock_interruptible(&prime->mutex); + if (unlikely(ret != 0)) { + ret = -ERESTARTSYS; + goto out_unref; + } + + dma_buf = prime->dma_buf; + if (!dma_buf || !get_dma_buf_unless_doomed(dma_buf)) { + + /* + * Need to create a new dma_buf, with memory accounting. + */ + ret = ttm_mem_global_alloc(tdev->mem_glob, tdev->dma_buf_size, + false, true); + if (unlikely(ret != 0)) { + mutex_unlock(&prime->mutex); + goto out_unref; + } + + dma_buf = dma_buf_export(prime, &tdev->ops, + prime->size, flags); + if (IS_ERR(dma_buf)) { + ret = PTR_ERR(dma_buf); + ttm_mem_global_free(tdev->mem_glob, + tdev->dma_buf_size); + mutex_unlock(&prime->mutex); + goto out_unref; + } + + /* + * dma_buf has taken the base object reference + */ + base = NULL; + prime->dma_buf = dma_buf; + } + mutex_unlock(&prime->mutex); + + ret = dma_buf_fd(dma_buf, flags); + if (ret >= 0) { + *prime_fd = ret; + ret = 0; + } else + dma_buf_put(dma_buf); + +out_unref: + if (base) + ttm_base_object_unref(&base); + return ret; +} +EXPORT_SYMBOL_GPL(ttm_prime_handle_to_fd); + +/** + * ttm_prime_object_init - Initialize a ttm_prime_object + * + * @tfile: struct ttm_object_file identifying the caller + * @size: The size of the dma_bufs we export. + * @prime: The object to be initialized. + * @shareable: See ttm_base_object_init + * @type: See ttm_base_object_init + * @refcount_release: See ttm_base_object_init + * @ref_obj_release: See ttm_base_object_init + * + * Initializes an object which is compatible with the drm_prime model + * for data sharing between processes and devices. + */ +int ttm_prime_object_init(struct ttm_object_file *tfile, size_t size, + struct ttm_prime_object *prime, bool shareable, + enum ttm_object_type type, + void (*refcount_release) (struct ttm_base_object **), + void (*ref_obj_release) (struct ttm_base_object *, + enum ttm_ref_type ref_type)) +{ + mutex_init(&prime->mutex); + prime->size = PAGE_ALIGN(size); + prime->real_type = type; + prime->dma_buf = NULL; + prime->refcount_release = refcount_release; + return ttm_base_object_init(tfile, &prime->base, shareable, + ttm_prime_type, + ttm_prime_refcount_release, + ref_obj_release); +} +EXPORT_SYMBOL(ttm_prime_object_init); diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index 2cc6cd91ac11..9f8b690bcf52 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -6,6 +6,6 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \ vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \ vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o \ vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o vmwgfx_context.o \ - vmwgfx_surface.o + vmwgfx_surface.o vmwgfx_prime.o obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 20d5485eaf98..c7a549694e59 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -677,7 +677,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) } dev_priv->tdev = ttm_object_device_init - (dev_priv->mem_global_ref.object, 12); + (dev_priv->mem_global_ref.object, 12, &vmw_prime_dmabuf_ops); if (unlikely(dev_priv->tdev == NULL)) { DRM_ERROR("Unable to initialize TTM object management.\n"); @@ -1210,7 +1210,7 @@ static const struct file_operations vmwgfx_driver_fops = { static struct drm_driver driver = { .driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | - DRIVER_MODESET, + DRIVER_MODESET | DRIVER_PRIME, .load = vmw_driver_load, .unload = vmw_driver_unload, .lastclose = vmw_lastclose, @@ -1235,6 +1235,9 @@ static struct drm_driver driver = { .dumb_map_offset = vmw_dumb_map_offset, .dumb_destroy = vmw_dumb_destroy, + .prime_fd_to_handle = vmw_prime_fd_to_handle, + .prime_handle_to_fd = vmw_prime_handle_to_fd, + .fops = &vmwgfx_driver_fops, .name = VMWGFX_DRIVER_NAME, .desc = VMWGFX_DRIVER_DESC, diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index e401d5dbcb96..db85985c7086 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -819,6 +819,20 @@ int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv); extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func; /** + * Prime - vmwgfx_prime.c + */ + +extern const struct dma_buf_ops vmw_prime_dmabuf_ops; +extern int vmw_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, + int fd, u32 *handle); +extern int vmw_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, + uint32_t handle, uint32_t flags, + int *prime_fd); + + +/** * Inline helper functions */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c new file mode 100644 index 000000000000..31fe32d8d65a --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c @@ -0,0 +1,137 @@ +/************************************************************************** + * + * Copyright © 2013 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ +/* + * Authors: + * Thomas Hellstrom <thellstrom@vmware.com> + * + */ + +#include "vmwgfx_drv.h" +#include <linux/dma-buf.h> +#include <drm/ttm/ttm_object.h> + +/* + * DMA-BUF attach- and mapping methods. No need to implement + * these until we have other virtual devices use them. + */ + +static int vmw_prime_map_attach(struct dma_buf *dma_buf, + struct device *target_dev, + struct dma_buf_attachment *attach) +{ + return -ENOSYS; +} + +static void vmw_prime_map_detach(struct dma_buf *dma_buf, + struct dma_buf_attachment *attach) +{ +} + +static struct sg_table *vmw_prime_map_dma_buf(struct dma_buf_attachment *attach, + enum dma_data_direction dir) +{ + return ERR_PTR(-ENOSYS); +} + +static void vmw_prime_unmap_dma_buf(struct dma_buf_attachment *attach, + struct sg_table *sgb, + enum dma_data_direction dir) +{ +} + +static void *vmw_prime_dmabuf_vmap(struct dma_buf *dma_buf) +{ + return NULL; +} + +static void vmw_prime_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr) +{ +} + +static void *vmw_prime_dmabuf_kmap_atomic(struct dma_buf *dma_buf, + unsigned long page_num) +{ + return NULL; +} + +static void vmw_prime_dmabuf_kunmap_atomic(struct dma_buf *dma_buf, + unsigned long page_num, void *addr) +{ + +} +static void *vmw_prime_dmabuf_kmap(struct dma_buf *dma_buf, + unsigned long page_num) +{ + return NULL; +} + +static void vmw_prime_dmabuf_kunmap(struct dma_buf *dma_buf, + unsigned long page_num, void *addr) +{ + +} + +static int vmw_prime_dmabuf_mmap(struct dma_buf *dma_buf, + struct vm_area_struct *vma) +{ + WARN_ONCE(true, "Attempted use of dmabuf mmap. Bad.\n"); + return -ENOSYS; +} + +const struct dma_buf_ops vmw_prime_dmabuf_ops = { + .attach = vmw_prime_map_attach, + .detach = vmw_prime_map_detach, + .map_dma_buf = vmw_prime_map_dma_buf, + .unmap_dma_buf = vmw_prime_unmap_dma_buf, + .release = NULL, + .kmap = vmw_prime_dmabuf_kmap, + .kmap_atomic = vmw_prime_dmabuf_kmap_atomic, + .kunmap = vmw_prime_dmabuf_kunmap, + .kunmap_atomic = vmw_prime_dmabuf_kunmap_atomic, + .mmap = vmw_prime_dmabuf_mmap, + .vmap = vmw_prime_dmabuf_vmap, + .vunmap = vmw_prime_dmabuf_vunmap, +}; + +int vmw_prime_fd_to_handle(struct drm_device *dev, + struct drm_file *file_priv, + int fd, u32 *handle) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_prime_fd_to_handle(tfile, fd, handle); +} + +int vmw_prime_handle_to_fd(struct drm_device *dev, + struct drm_file *file_priv, + uint32_t handle, uint32_t flags, + int *prime_fd) +{ + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_prime_handle_to_fd(tfile, handle, flags, prime_fd); +} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 252501a54def..efe2b74c5eb1 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -35,7 +35,7 @@ #define VMW_RES_EVICT_ERR_COUNT 10 struct vmw_user_dma_buffer { - struct ttm_base_object base; + struct ttm_prime_object prime; struct vmw_dma_buffer dma; }; @@ -297,7 +297,7 @@ int vmw_user_resource_lookup_handle(struct vmw_private *dev_priv, if (unlikely(base == NULL)) return -EINVAL; - if (unlikely(base->object_type != converter->object_type)) + if (unlikely(ttm_base_object_type(base) != converter->object_type)) goto out_bad_resource; res = converter->base_obj_to_res(base); @@ -387,7 +387,7 @@ static void vmw_user_dmabuf_destroy(struct ttm_buffer_object *bo) { struct vmw_user_dma_buffer *vmw_user_bo = vmw_user_dma_buffer(bo); - ttm_base_object_kfree(vmw_user_bo, base); + ttm_prime_object_kfree(vmw_user_bo, prime); } static void vmw_user_dmabuf_release(struct ttm_base_object **p_base) @@ -401,7 +401,8 @@ static void vmw_user_dmabuf_release(struct ttm_base_object **p_base) if (unlikely(base == NULL)) return; - vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); + vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, + prime.base); bo = &vmw_user_bo->dma.base; ttm_bo_unref(&bo); } @@ -442,18 +443,19 @@ int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv, return ret; tmp = ttm_bo_reference(&user_bo->dma.base); - ret = ttm_base_object_init(tfile, - &user_bo->base, - shareable, - ttm_buffer_type, - &vmw_user_dmabuf_release, NULL); + ret = ttm_prime_object_init(tfile, + size, + &user_bo->prime, + shareable, + ttm_buffer_type, + &vmw_user_dmabuf_release, NULL); if (unlikely(ret != 0)) { ttm_bo_unref(&tmp); goto out_no_base_object; } *p_dma_buf = &user_bo->dma; - *handle = user_bo->base.hash.key; + *handle = user_bo->prime.base.hash.key; out_no_base_object: return ret; @@ -475,8 +477,8 @@ int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo, return -EPERM; vmw_user_bo = vmw_user_dma_buffer(bo); - return (vmw_user_bo->base.tfile == tfile || - vmw_user_bo->base.shareable) ? 0 : -EPERM; + return (vmw_user_bo->prime.base.tfile == tfile || + vmw_user_bo->prime.base.shareable) ? 0 : -EPERM; } int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, @@ -538,14 +540,15 @@ int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile, return -ESRCH; } - if (unlikely(base->object_type != ttm_buffer_type)) { + if (unlikely(ttm_base_object_type(base) != ttm_buffer_type)) { ttm_base_object_unref(&base); printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n", (unsigned long)handle); return -EINVAL; } - vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base); + vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, + prime.base); (void)ttm_bo_reference(&vmw_user_bo->dma.base); ttm_base_object_unref(&base); *out = &vmw_user_bo->dma; @@ -562,7 +565,8 @@ int vmw_user_dmabuf_reference(struct ttm_object_file *tfile, return -EINVAL; user_bo = container_of(dma_buf, struct vmw_user_dma_buffer, dma); - return ttm_ref_object_add(tfile, &user_bo->base, TTM_REF_USAGE, NULL); + return ttm_ref_object_add(tfile, &user_bo->prime.base, + TTM_REF_USAGE, NULL); } /* @@ -807,15 +811,16 @@ int vmw_dumb_create(struct drm_file *file_priv, goto out_no_dmabuf; tmp = ttm_bo_reference(&vmw_user_bo->dma.base); - ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile, - &vmw_user_bo->base, - false, - ttm_buffer_type, - &vmw_user_dmabuf_release, NULL); + ret = ttm_prime_object_init(vmw_fpriv(file_priv)->tfile, + args->size, + &vmw_user_bo->prime, + false, + ttm_buffer_type, + &vmw_user_dmabuf_release, NULL); if (unlikely(ret != 0)) goto out_no_base_object; - args->handle = vmw_user_bo->base.hash.key; + args->handle = vmw_user_bo->prime.base.hash.key; out_no_base_object: ttm_bo_unref(&tmp); @@ -994,7 +999,6 @@ void vmw_resource_unreserve(struct vmw_resource *res, */ static int vmw_resource_check_buffer(struct vmw_resource *res, - struct ww_acquire_ctx *ticket, bool interruptible, struct ttm_validate_buffer *val_buf) { @@ -1011,7 +1015,7 @@ vmw_resource_check_buffer(struct vmw_resource *res, INIT_LIST_HEAD(&val_list); val_buf->bo = ttm_bo_reference(&res->backup->base); list_add_tail(&val_buf->head, &val_list); - ret = ttm_eu_reserve_buffers(ticket, &val_list); + ret = ttm_eu_reserve_buffers(NULL, &val_list); if (unlikely(ret != 0)) goto out_no_reserve; @@ -1029,7 +1033,7 @@ vmw_resource_check_buffer(struct vmw_resource *res, return 0; out_no_validate: - ttm_eu_backoff_reservation(ticket, &val_list); + ttm_eu_backoff_reservation(NULL, &val_list); out_no_reserve: ttm_bo_unref(&val_buf->bo); if (backup_dirty) @@ -1074,8 +1078,7 @@ int vmw_resource_reserve(struct vmw_resource *res, bool no_backup) * @val_buf: Backup buffer information. */ static void -vmw_resource_backoff_reservation(struct ww_acquire_ctx *ticket, - struct ttm_validate_buffer *val_buf) +vmw_resource_backoff_reservation(struct ttm_validate_buffer *val_buf) { struct list_head val_list; @@ -1084,7 +1087,7 @@ vmw_resource_backoff_reservation(struct ww_acquire_ctx *ticket, INIT_LIST_HEAD(&val_list); list_add_tail(&val_buf->head, &val_list); - ttm_eu_backoff_reservation(ticket, &val_list); + ttm_eu_backoff_reservation(NULL, &val_list); ttm_bo_unref(&val_buf->bo); } @@ -1099,14 +1102,12 @@ int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible) { struct ttm_validate_buffer val_buf; const struct vmw_res_func *func = res->func; - struct ww_acquire_ctx ticket; int ret; BUG_ON(!func->may_evict); val_buf.bo = NULL; - ret = vmw_resource_check_buffer(res, &ticket, interruptible, - &val_buf); + ret = vmw_resource_check_buffer(res, interruptible, &val_buf); if (unlikely(ret != 0)) return ret; @@ -1121,7 +1122,7 @@ int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible) res->backup_dirty = true; res->res_dirty = false; out_no_unbind: - vmw_resource_backoff_reservation(&ticket, &val_buf); + vmw_resource_backoff_reservation(&val_buf); return ret; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index 582814339748..7de2ea8bd553 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -38,7 +38,7 @@ * @size: TTM accounting size for the surface. */ struct vmw_user_surface { - struct ttm_base_object base; + struct ttm_prime_object prime; struct vmw_surface srf; uint32_t size; uint32_t backup_handle; @@ -580,7 +580,8 @@ static int vmw_surface_init(struct vmw_private *dev_priv, static struct vmw_resource * vmw_user_surface_base_to_res(struct ttm_base_object *base) { - return &(container_of(base, struct vmw_user_surface, base)->srf.res); + return &(container_of(base, struct vmw_user_surface, + prime.base)->srf.res); } /** @@ -599,7 +600,7 @@ static void vmw_user_surface_free(struct vmw_resource *res) kfree(srf->offsets); kfree(srf->sizes); kfree(srf->snooper.image); - ttm_base_object_kfree(user_srf, base); + ttm_prime_object_kfree(user_srf, prime); ttm_mem_global_free(vmw_mem_glob(dev_priv), size); } @@ -616,7 +617,7 @@ static void vmw_user_surface_base_release(struct ttm_base_object **p_base) { struct ttm_base_object *base = *p_base; struct vmw_user_surface *user_srf = - container_of(base, struct vmw_user_surface, base); + container_of(base, struct vmw_user_surface, prime.base); struct vmw_resource *res = &user_srf->srf.res; *p_base = NULL; @@ -790,8 +791,8 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, } srf->snooper.crtc = NULL; - user_srf->base.shareable = false; - user_srf->base.tfile = NULL; + user_srf->prime.base.shareable = false; + user_srf->prime.base.tfile = NULL; /** * From this point, the generic resource management functions @@ -803,9 +804,9 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, goto out_unlock; tmp = vmw_resource_reference(&srf->res); - ret = ttm_base_object_init(tfile, &user_srf->base, - req->shareable, VMW_RES_SURFACE, - &vmw_user_surface_base_release, NULL); + ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime, + req->shareable, VMW_RES_SURFACE, + &vmw_user_surface_base_release, NULL); if (unlikely(ret != 0)) { vmw_resource_unreference(&tmp); @@ -813,7 +814,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, goto out_unlock; } - rep->sid = user_srf->base.hash.key; + rep->sid = user_srf->prime.base.hash.key; vmw_resource_unreference(&res); ttm_read_unlock(&vmaster->lock); @@ -823,7 +824,7 @@ out_no_copy: out_no_offsets: kfree(srf->sizes); out_no_sizes: - ttm_base_object_kfree(user_srf, base); + ttm_prime_object_kfree(user_srf, prime); out_no_user_srf: ttm_mem_global_free(vmw_mem_glob(dev_priv), size); out_unlock: @@ -859,13 +860,14 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, return -EINVAL; } - if (unlikely(base->object_type != VMW_RES_SURFACE)) + if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) goto out_bad_resource; - user_srf = container_of(base, struct vmw_user_surface, base); + user_srf = container_of(base, struct vmw_user_surface, prime.base); srf = &user_srf->srf; - ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL); + ret = ttm_ref_object_add(tfile, &user_srf->prime.base, + TTM_REF_USAGE, NULL); if (unlikely(ret != 0)) { DRM_ERROR("Could not add a reference to a surface.\n"); goto out_no_reference; diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index ae48d18ee315..5f7e55f4b7f0 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -1008,7 +1008,7 @@ static int i2c_hid_probe(struct i2c_client *client, hid->hid_get_raw_report = i2c_hid_get_raw_report; hid->hid_output_raw_report = i2c_hid_output_raw_report; hid->dev.parent = &client->dev; - ACPI_HANDLE_SET(&hid->dev, ACPI_HANDLE(&client->dev)); + ACPI_COMPANION_SET(&hid->dev, ACPI_COMPANION(&client->dev)); hid->bus = BUS_I2C; hid->version = le16_to_cpu(ihid->hdesc.bcdVersion); hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID); diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index b3ab9d43bb3e..52d548f1dc1d 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -656,6 +656,7 @@ config SENSORS_LM75 - Analog Devices ADT75 - Dallas Semiconductor DS75, DS1775 and DS7505 + - Global Mixed-mode Technology (GMT) G751 - Maxim MAX6625 and MAX6626 - Microchip MCP980x - National Semiconductor LM75, LM75A diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 8d40da314a8e..6a34f7f48eb9 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -602,9 +602,8 @@ static int read_domain_devices(struct acpi_power_meter_resource *resource) /* Create a symlink to domain objects */ resource->domain_devices[i] = NULL; - status = acpi_bus_get_device(element->reference.handle, - &resource->domain_devices[i]); - if (ACPI_FAILURE(status)) + if (acpi_bus_get_device(element->reference.handle, + &resource->domain_devices[i])) continue; obj = resource->domain_devices[i]; diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 1d7ff46812c3..dafc63c6932d 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -18,7 +18,6 @@ #include <linux/err.h> #include <acpi/acpi.h> -#include <acpi/acpixf.h> #include <acpi/acpi_drivers.h> #include <acpi/acpi_bus.h> diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index c03b490bba81..7e3ef134f1d2 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -39,6 +39,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ ds1775, ds75, ds7505, + g751, lm75, lm75a, max6625, @@ -208,6 +209,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) data->resolution = 12; data->sample_time = HZ / 4; break; + case g751: case lm75: case lm75a: data->resolution = 9; @@ -296,6 +298,7 @@ static const struct i2c_device_id lm75_ids[] = { { "ds1775", ds1775, }, { "ds75", ds75, }, { "ds7505", ds7505, }, + { "g751", g751, }, { "lm75", lm75, }, { "lm75a", lm75a, }, { "max6625", max6625, }, diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index d17325db0ea3..cf811c1a1475 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -274,6 +274,8 @@ static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 }; static const u16 NCT6775_REG_TEMP[] = { 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d }; +static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 }; + static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { 0, 0x152, 0x252, 0x628, 0x629, 0x62A }; static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = { @@ -454,6 +456,7 @@ static const u16 NCT6779_REG_CRITICAL_PWM[] = { 0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 }; static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 }; +static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b }; static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = { 0x18, 0x152 }; static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = { @@ -507,6 +510,13 @@ static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1] #define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28 +static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 }; +static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a }; +static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b }; +static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c }; +static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d }; +static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e }; + static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B, 0x568, 0x45D }; @@ -534,6 +544,7 @@ static const u16 NCT6106_REG_IN[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 }; static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 }; +static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a }; static const u16 NCT6106_REG_TEMP_HYST[] = { 0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 }; static const u16 NCT6106_REG_TEMP_OVER[] = { @@ -1307,6 +1318,9 @@ static void nct6775_update_pwm(struct device *dev) if (reg & 0x80) data->pwm[2][i] = 0; + if (!data->REG_WEIGHT_TEMP_SEL[i]) + continue; + reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]); data->pwm_weight_temp_sel[i] = reg & 0x1f; /* If weight is disabled, report weight source as 0 */ @@ -2852,6 +2866,9 @@ static umode_t nct6775_pwm_is_visible(struct kobject *kobj, if (!(data->has_pwm & (1 << pwm))) return 0; + if ((nr >= 14 && nr <= 18) || nr == 21) /* weight */ + if (!data->REG_WEIGHT_TEMP_SEL[pwm]) + return 0; if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */ return 0; if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */ @@ -2945,11 +2962,11 @@ static struct sensor_device_template *nct6775_attributes_pwm_template[] = { &sensor_dev_template_pwm_step_down_time, &sensor_dev_template_pwm_start, &sensor_dev_template_pwm_floor, - &sensor_dev_template_pwm_weight_temp_sel, + &sensor_dev_template_pwm_weight_temp_sel, /* 14 */ &sensor_dev_template_pwm_weight_temp_step, &sensor_dev_template_pwm_weight_temp_step_tol, &sensor_dev_template_pwm_weight_temp_step_base, - &sensor_dev_template_pwm_weight_duty_step, + &sensor_dev_template_pwm_weight_duty_step, /* 18 */ &sensor_dev_template_pwm_max, /* 19 */ &sensor_dev_template_pwm_step, /* 20 */ &sensor_dev_template_pwm_weight_duty_base, /* 21 */ @@ -3253,9 +3270,9 @@ static int nct6775_probe(struct platform_device *pdev) int i, s, err = 0; int src, mask, available; const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config; - const u16 *reg_temp_alternate, *reg_temp_crit; + const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit; const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL; - int num_reg_temp; + int num_reg_temp, num_reg_temp_mon; u8 cr2a; struct attribute_group *group; struct device *hwmon_dev; @@ -3338,7 +3355,9 @@ static int nct6775_probe(struct platform_device *pdev) data->BEEP_BITS = NCT6106_BEEP_BITS; reg_temp = NCT6106_REG_TEMP; + reg_temp_mon = NCT6106_REG_TEMP_MON; num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP); + num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON); reg_temp_over = NCT6106_REG_TEMP_OVER; reg_temp_hyst = NCT6106_REG_TEMP_HYST; reg_temp_config = NCT6106_REG_TEMP_CONFIG; @@ -3410,7 +3429,9 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_BEEP = NCT6775_REG_BEEP; reg_temp = NCT6775_REG_TEMP; + reg_temp_mon = NCT6775_REG_TEMP_MON; num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); + num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON); reg_temp_over = NCT6775_REG_TEMP_OVER; reg_temp_hyst = NCT6775_REG_TEMP_HYST; reg_temp_config = NCT6775_REG_TEMP_CONFIG; @@ -3480,7 +3501,9 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_BEEP = NCT6776_REG_BEEP; reg_temp = NCT6775_REG_TEMP; + reg_temp_mon = NCT6775_REG_TEMP_MON; num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); + num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON); reg_temp_over = NCT6775_REG_TEMP_OVER; reg_temp_hyst = NCT6775_REG_TEMP_HYST; reg_temp_config = NCT6776_REG_TEMP_CONFIG; @@ -3554,7 +3577,9 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_BEEP = NCT6776_REG_BEEP; reg_temp = NCT6779_REG_TEMP; + reg_temp_mon = NCT6779_REG_TEMP_MON; num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); + num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON); reg_temp_over = NCT6779_REG_TEMP_OVER; reg_temp_hyst = NCT6779_REG_TEMP_HYST; reg_temp_config = NCT6779_REG_TEMP_CONFIG; @@ -3603,8 +3628,8 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_PWM[0] = NCT6775_REG_PWM; data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT; data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT; - data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP; - data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE; + data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP; + data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE; data->REG_PWM_READ = NCT6775_REG_PWM_READ; data->REG_PWM_MODE = NCT6776_REG_PWM_MODE; data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK; @@ -3620,15 +3645,17 @@ static int nct6775_probe(struct platform_device *pdev) data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET; data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; - data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL; - data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP; - data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; - data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; + data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE; data->REG_ALARM = NCT6791_REG_ALARM; data->REG_BEEP = NCT6776_REG_BEEP; reg_temp = NCT6779_REG_TEMP; + reg_temp_mon = NCT6779_REG_TEMP_MON; num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); + num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON); reg_temp_over = NCT6779_REG_TEMP_OVER; reg_temp_hyst = NCT6779_REG_TEMP_HYST; reg_temp_config = NCT6779_REG_TEMP_CONFIG; @@ -3729,6 +3756,50 @@ static int nct6775_probe(struct platform_device *pdev) s++; } + /* + * Repeat with temperatures used for fan control. + * This set of registers does not support limits. + */ + for (i = 0; i < num_reg_temp_mon; i++) { + if (reg_temp_mon[i] == 0) + continue; + + src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f; + if (!src || (mask & (1 << src))) + continue; + + if (src >= data->temp_label_num || + !strlen(data->temp_label[src])) { + dev_info(dev, + "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n", + src, i, data->REG_TEMP_SEL[i], + reg_temp_mon[i]); + continue; + } + + mask |= 1 << src; + + /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */ + if (src <= data->temp_fixed_num) { + if (data->have_temp & (1 << (src - 1))) + continue; + data->have_temp |= 1 << (src - 1); + data->have_temp_fixed |= 1 << (src - 1); + data->reg_temp[0][src - 1] = reg_temp_mon[i]; + data->temp_src[src - 1] = src; + continue; + } + + if (s >= NUM_TEMP) + continue; + + /* Use dynamic index for other sources */ + data->have_temp |= 1 << s; + data->reg_temp[0][s] = reg_temp_mon[i]; + data->temp_src[s] = src; + s++; + } + #ifdef USE_ALTERNATE /* * Go through the list of alternate temp registers and enable diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index cdcbd8368ed3..3b26129f6055 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -109,6 +109,7 @@ config I2C_I801 Avoton (SOC) Wellsburg (PCH) Coleto Creek (PCH) + Wildcat Point-LP (PCH) This driver can also be built as a module. If so, the module will be called i2c-i801. @@ -345,6 +346,16 @@ config I2C_BCM2835 This support is also available as a module. If so, the module will be called i2c-bcm2835. +config I2C_BCM_KONA + tristate "BCM Kona I2C adapter" + depends on ARCH_BCM_MOBILE + default y + help + If you say yes to this option, support will be included for the + I2C interface on the Broadcom Kona family of processors. + + If you do not need KONA I2C inteface, say N. + config I2C_BLACKFIN_TWI tristate "Blackfin TWI I2C support" depends on BLACKFIN @@ -436,6 +447,13 @@ config I2C_EG20T ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series. ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH. +config I2C_EXYNOS5 + tristate "Exynos5 high-speed I2C driver" + depends on ARCH_EXYNOS5 && OF + help + Say Y here to include support for high-speed I2C controller in the + Exynos5 based Samsung SoCs. + config I2C_GPIO tristate "GPIO-based bitbanging I2C" depends on GPIOLIB @@ -665,7 +683,7 @@ config I2C_SH7760 config I2C_SH_MOBILE tristate "SuperH Mobile I2C Controller" - depends on SUPERH || ARCH_SHMOBILE + depends on SUPERH || ARM || COMPILE_TEST help If you say yes to this option, support will be included for the built-in I2C interface on the Renesas SH-Mobile processor. @@ -695,6 +713,16 @@ config I2C_SIRF This driver can also be built as a module. If so, the module will be called i2c-sirf. +config I2C_ST + tristate "STMicroelectronics SSC I2C support" + depends on ARCH_STI + help + Enable this option to add support for STMicroelectronics SoCs + hardware SSC (Synchronous Serial Controller) as an I2C controller. + + This driver can also be built as module. If so, the module + will be called i2c-st. + config I2C_STU300 tristate "ST Microelectronics DDC I2C interface" depends on MACH_U300 @@ -768,7 +796,7 @@ config I2C_XLR config I2C_RCAR tristate "Renesas R-Car I2C Controller" - depends on ARCH_SHMOBILE && I2C + depends on ARM || COMPILE_TEST help If you say yes to this option, support will be included for the R-Car I2C controller. diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index d00997f3eb3b..c73eb0ea788e 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -42,6 +42,7 @@ i2c-designware-platform-objs := i2c-designware-platdrv.o obj-$(CONFIG_I2C_DESIGNWARE_PCI) += i2c-designware-pci.o i2c-designware-pci-objs := i2c-designware-pcidrv.o obj-$(CONFIG_I2C_EG20T) += i2c-eg20t.o +obj-$(CONFIG_I2C_EXYNOS5) += i2c-exynos5.o obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o obj-$(CONFIG_I2C_HIGHLANDER) += i2c-highlander.o obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o @@ -68,6 +69,7 @@ obj-$(CONFIG_I2C_SH7760) += i2c-sh7760.o obj-$(CONFIG_I2C_SH_MOBILE) += i2c-sh_mobile.o obj-$(CONFIG_I2C_SIMTEC) += i2c-simtec.o obj-$(CONFIG_I2C_SIRF) += i2c-sirf.o +obj-$(CONFIG_I2C_ST) += i2c-st.o obj-$(CONFIG_I2C_STU300) += i2c-stu300.o obj-$(CONFIG_I2C_TEGRA) += i2c-tegra.o obj-$(CONFIG_I2C_VERSATILE) += i2c-versatile.o @@ -87,6 +89,7 @@ obj-$(CONFIG_I2C_VIPERBOARD) += i2c-viperboard.o # Other I2C/SMBus bus drivers obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o +obj-$(CONFIG_I2C_BCM_KONA) += i2c-bcm-kona.o obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c new file mode 100644 index 000000000000..036cf03aeb61 --- /dev/null +++ b/drivers/i2c/busses/i2c-bcm-kona.c @@ -0,0 +1,909 @@ +/* + * Copyright (C) 2013 Broadcom Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/slab.h> + +/* Hardware register offsets and field defintions */ +#define CS_OFFSET 0x00000020 +#define CS_ACK_SHIFT 3 +#define CS_ACK_MASK 0x00000008 +#define CS_ACK_CMD_GEN_START 0x00000000 +#define CS_ACK_CMD_GEN_RESTART 0x00000001 +#define CS_CMD_SHIFT 1 +#define CS_CMD_CMD_NO_ACTION 0x00000000 +#define CS_CMD_CMD_START_RESTART 0x00000001 +#define CS_CMD_CMD_STOP 0x00000002 +#define CS_EN_SHIFT 0 +#define CS_EN_CMD_ENABLE_BSC 0x00000001 + +#define TIM_OFFSET 0x00000024 +#define TIM_PRESCALE_SHIFT 6 +#define TIM_P_SHIFT 3 +#define TIM_NO_DIV_SHIFT 2 +#define TIM_DIV_SHIFT 0 + +#define DAT_OFFSET 0x00000028 + +#define TOUT_OFFSET 0x0000002c + +#define TXFCR_OFFSET 0x0000003c +#define TXFCR_FIFO_FLUSH_MASK 0x00000080 +#define TXFCR_FIFO_EN_MASK 0x00000040 + +#define IER_OFFSET 0x00000044 +#define IER_READ_COMPLETE_INT_MASK 0x00000010 +#define IER_I2C_INT_EN_MASK 0x00000008 +#define IER_FIFO_INT_EN_MASK 0x00000002 +#define IER_NOACK_EN_MASK 0x00000001 + +#define ISR_OFFSET 0x00000048 +#define ISR_RESERVED_MASK 0xffffff60 +#define ISR_CMDBUSY_MASK 0x00000080 +#define ISR_READ_COMPLETE_MASK 0x00000010 +#define ISR_SES_DONE_MASK 0x00000008 +#define ISR_ERR_MASK 0x00000004 +#define ISR_TXFIFOEMPTY_MASK 0x00000002 +#define ISR_NOACK_MASK 0x00000001 + +#define CLKEN_OFFSET 0x0000004C +#define CLKEN_AUTOSENSE_OFF_MASK 0x00000080 +#define CLKEN_M_SHIFT 4 +#define CLKEN_N_SHIFT 1 +#define CLKEN_CLKEN_MASK 0x00000001 + +#define FIFO_STATUS_OFFSET 0x00000054 +#define FIFO_STATUS_RXFIFO_EMPTY_MASK 0x00000004 +#define FIFO_STATUS_TXFIFO_EMPTY_MASK 0x00000010 + +#define HSTIM_OFFSET 0x00000058 +#define HSTIM_HS_MODE_MASK 0x00008000 +#define HSTIM_HS_HOLD_SHIFT 10 +#define HSTIM_HS_HIGH_PHASE_SHIFT 5 +#define HSTIM_HS_SETUP_SHIFT 0 + +#define PADCTL_OFFSET 0x0000005c +#define PADCTL_PAD_OUT_EN_MASK 0x00000004 + +#define RXFCR_OFFSET 0x00000068 +#define RXFCR_NACK_EN_SHIFT 7 +#define RXFCR_READ_COUNT_SHIFT 0 +#define RXFIFORDOUT_OFFSET 0x0000006c + +/* Locally used constants */ +#define MAX_RX_FIFO_SIZE 64U /* bytes */ +#define MAX_TX_FIFO_SIZE 64U /* bytes */ + +#define STD_EXT_CLK_FREQ 13000000UL +#define HS_EXT_CLK_FREQ 104000000UL + +#define MASTERCODE 0x08 /* Mastercodes are 0000_1xxxb */ + +#define I2C_TIMEOUT 100 /* msecs */ + +/* Operations that can be commanded to the controller */ +enum bcm_kona_cmd_t { + BCM_CMD_NOACTION = 0, + BCM_CMD_START, + BCM_CMD_RESTART, + BCM_CMD_STOP, +}; + +enum bus_speed_index { + BCM_SPD_100K = 0, + BCM_SPD_400K, + BCM_SPD_1MHZ, +}; + +enum hs_bus_speed_index { + BCM_SPD_3P4MHZ = 0, +}; + +/* Internal divider settings for standard mode, fast mode and fast mode plus */ +struct bus_speed_cfg { + uint8_t time_m; /* Number of cycles for setup time */ + uint8_t time_n; /* Number of cycles for hold time */ + uint8_t prescale; /* Prescale divider */ + uint8_t time_p; /* Timing coefficient */ + uint8_t no_div; /* Disable clock divider */ + uint8_t time_div; /* Post-prescale divider */ +}; + +/* Internal divider settings for high-speed mode */ +struct hs_bus_speed_cfg { + uint8_t hs_hold; /* Number of clock cycles SCL stays low until + the end of bit period */ + uint8_t hs_high_phase; /* Number of clock cycles SCL stays high + before it falls */ + uint8_t hs_setup; /* Number of clock cycles SCL stays low + before it rises */ + uint8_t prescale; /* Prescale divider */ + uint8_t time_p; /* Timing coefficient */ + uint8_t no_div; /* Disable clock divider */ + uint8_t time_div; /* Post-prescale divider */ +}; + +static const struct bus_speed_cfg std_cfg_table[] = { + [BCM_SPD_100K] = {0x01, 0x01, 0x03, 0x06, 0x00, 0x02}, + [BCM_SPD_400K] = {0x05, 0x01, 0x03, 0x05, 0x01, 0x02}, + [BCM_SPD_1MHZ] = {0x01, 0x01, 0x03, 0x01, 0x01, 0x03}, +}; + +static const struct hs_bus_speed_cfg hs_cfg_table[] = { + [BCM_SPD_3P4MHZ] = {0x01, 0x08, 0x14, 0x00, 0x06, 0x01, 0x00}, +}; + +struct bcm_kona_i2c_dev { + struct device *device; + + void __iomem *base; + int irq; + struct clk *external_clk; + + struct i2c_adapter adapter; + + struct completion done; + + const struct bus_speed_cfg *std_cfg; + const struct hs_bus_speed_cfg *hs_cfg; +}; + +static void bcm_kona_i2c_send_cmd_to_ctrl(struct bcm_kona_i2c_dev *dev, + enum bcm_kona_cmd_t cmd) +{ + dev_dbg(dev->device, "%s, %d\n", __func__, cmd); + + switch (cmd) { + case BCM_CMD_NOACTION: + writel((CS_CMD_CMD_NO_ACTION << CS_CMD_SHIFT) | + (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT), + dev->base + CS_OFFSET); + break; + + case BCM_CMD_START: + writel((CS_ACK_CMD_GEN_START << CS_ACK_SHIFT) | + (CS_CMD_CMD_START_RESTART << CS_CMD_SHIFT) | + (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT), + dev->base + CS_OFFSET); + break; + + case BCM_CMD_RESTART: + writel((CS_ACK_CMD_GEN_RESTART << CS_ACK_SHIFT) | + (CS_CMD_CMD_START_RESTART << CS_CMD_SHIFT) | + (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT), + dev->base + CS_OFFSET); + break; + + case BCM_CMD_STOP: + writel((CS_CMD_CMD_STOP << CS_CMD_SHIFT) | + (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT), + dev->base + CS_OFFSET); + break; + + default: + dev_err(dev->device, "Unknown command %d\n", cmd); + } +} + +static void bcm_kona_i2c_enable_clock(struct bcm_kona_i2c_dev *dev) +{ + writel(readl(dev->base + CLKEN_OFFSET) | CLKEN_CLKEN_MASK, + dev->base + CLKEN_OFFSET); +} + +static void bcm_kona_i2c_disable_clock(struct bcm_kona_i2c_dev *dev) +{ + writel(readl(dev->base + CLKEN_OFFSET) & ~CLKEN_CLKEN_MASK, + dev->base + CLKEN_OFFSET); +} + +static irqreturn_t bcm_kona_i2c_isr(int irq, void *devid) +{ + struct bcm_kona_i2c_dev *dev = devid; + uint32_t status = readl(dev->base + ISR_OFFSET); + + if ((status & ~ISR_RESERVED_MASK) == 0) + return IRQ_NONE; + + /* Must flush the TX FIFO when NAK detected */ + if (status & ISR_NOACK_MASK) + writel(TXFCR_FIFO_FLUSH_MASK | TXFCR_FIFO_EN_MASK, + dev->base + TXFCR_OFFSET); + + writel(status & ~ISR_RESERVED_MASK, dev->base + ISR_OFFSET); + complete_all(&dev->done); + + return IRQ_HANDLED; +} + +/* Wait for ISR_CMDBUSY_MASK to go low before writing to CS, DAT, or RCD */ +static int bcm_kona_i2c_wait_if_busy(struct bcm_kona_i2c_dev *dev) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(I2C_TIMEOUT); + + while (readl(dev->base + ISR_OFFSET) & ISR_CMDBUSY_MASK) + if (time_after(jiffies, timeout)) { + dev_err(dev->device, "CMDBUSY timeout\n"); + return -ETIMEDOUT; + } + + return 0; +} + +/* Send command to I2C bus */ +static int bcm_kona_send_i2c_cmd(struct bcm_kona_i2c_dev *dev, + enum bcm_kona_cmd_t cmd) +{ + int rc; + unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT); + + /* Make sure the hardware is ready */ + rc = bcm_kona_i2c_wait_if_busy(dev); + if (rc < 0) + return rc; + + /* Unmask the session done interrupt */ + writel(IER_I2C_INT_EN_MASK, dev->base + IER_OFFSET); + + /* Mark as incomplete before sending the command */ + reinit_completion(&dev->done); + + /* Send the command */ + bcm_kona_i2c_send_cmd_to_ctrl(dev, cmd); + + /* Wait for transaction to finish or timeout */ + time_left = wait_for_completion_timeout(&dev->done, time_left); + + /* Mask all interrupts */ + writel(0, dev->base + IER_OFFSET); + + if (!time_left) { + dev_err(dev->device, "controller timed out\n"); + rc = -ETIMEDOUT; + } + + /* Clear command */ + bcm_kona_i2c_send_cmd_to_ctrl(dev, BCM_CMD_NOACTION); + + return rc; +} + +/* Read a single RX FIFO worth of data from the i2c bus */ +static int bcm_kona_i2c_read_fifo_single(struct bcm_kona_i2c_dev *dev, + uint8_t *buf, unsigned int len, + unsigned int last_byte_nak) +{ + unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT); + + /* Mark as incomplete before starting the RX FIFO */ + reinit_completion(&dev->done); + + /* Unmask the read complete interrupt */ + writel(IER_READ_COMPLETE_INT_MASK, dev->base + IER_OFFSET); + + /* Start the RX FIFO */ + writel((last_byte_nak << RXFCR_NACK_EN_SHIFT) | + (len << RXFCR_READ_COUNT_SHIFT), + dev->base + RXFCR_OFFSET); + + /* Wait for FIFO read to complete */ + time_left = wait_for_completion_timeout(&dev->done, time_left); + + /* Mask all interrupts */ + writel(0, dev->base + IER_OFFSET); + + if (!time_left) { + dev_err(dev->device, "RX FIFO time out\n"); + return -EREMOTEIO; + } + + /* Read data from FIFO */ + for (; len > 0; len--, buf++) + *buf = readl(dev->base + RXFIFORDOUT_OFFSET); + + return 0; +} + +/* Read any amount of data using the RX FIFO from the i2c bus */ +static int bcm_kona_i2c_read_fifo(struct bcm_kona_i2c_dev *dev, + struct i2c_msg *msg) +{ + unsigned int bytes_to_read = MAX_RX_FIFO_SIZE; + unsigned int last_byte_nak = 0; + unsigned int bytes_read = 0; + int rc; + + uint8_t *tmp_buf = msg->buf; + + while (bytes_read < msg->len) { + if (msg->len - bytes_read <= MAX_RX_FIFO_SIZE) { + last_byte_nak = 1; /* NAK last byte of transfer */ + bytes_to_read = msg->len - bytes_read; + } + + rc = bcm_kona_i2c_read_fifo_single(dev, tmp_buf, bytes_to_read, + last_byte_nak); + if (rc < 0) + return -EREMOTEIO; + + bytes_read += bytes_to_read; + tmp_buf += bytes_to_read; + } + + return 0; +} + +/* Write a single byte of data to the i2c bus */ +static int bcm_kona_i2c_write_byte(struct bcm_kona_i2c_dev *dev, uint8_t data, + unsigned int nak_expected) +{ + int rc; + unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT); + unsigned int nak_received; + + /* Make sure the hardware is ready */ + rc = bcm_kona_i2c_wait_if_busy(dev); + if (rc < 0) + return rc; + + /* Clear pending session done interrupt */ + writel(ISR_SES_DONE_MASK, dev->base + ISR_OFFSET); + + /* Unmask the session done interrupt */ + writel(IER_I2C_INT_EN_MASK, dev->base + IER_OFFSET); + + /* Mark as incomplete before sending the data */ + reinit_completion(&dev->done); + + /* Send one byte of data */ + writel(data, dev->base + DAT_OFFSET); + + /* Wait for byte to be written */ + time_left = wait_for_completion_timeout(&dev->done, time_left); + + /* Mask all interrupts */ + writel(0, dev->base + IER_OFFSET); + + if (!time_left) { + dev_dbg(dev->device, "controller timed out\n"); + return -ETIMEDOUT; + } + + nak_received = readl(dev->base + CS_OFFSET) & CS_ACK_MASK ? 1 : 0; + + if (nak_received ^ nak_expected) { + dev_dbg(dev->device, "unexpected NAK/ACK\n"); + return -EREMOTEIO; + } + + return 0; +} + +/* Write a single TX FIFO worth of data to the i2c bus */ +static int bcm_kona_i2c_write_fifo_single(struct bcm_kona_i2c_dev *dev, + uint8_t *buf, unsigned int len) +{ + int k; + unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT); + unsigned int fifo_status; + + /* Mark as incomplete before sending data to the TX FIFO */ + reinit_completion(&dev->done); + + /* Unmask the fifo empty and nak interrupt */ + writel(IER_FIFO_INT_EN_MASK | IER_NOACK_EN_MASK, + dev->base + IER_OFFSET); + + /* Disable IRQ to load a FIFO worth of data without interruption */ + disable_irq(dev->irq); + + /* Write data into FIFO */ + for (k = 0; k < len; k++) + writel(buf[k], (dev->base + DAT_OFFSET)); + + /* Enable IRQ now that data has been loaded */ + enable_irq(dev->irq); + + /* Wait for FIFO to empty */ + do { + time_left = wait_for_completion_timeout(&dev->done, time_left); + fifo_status = readl(dev->base + FIFO_STATUS_OFFSET); + } while (time_left && !(fifo_status & FIFO_STATUS_TXFIFO_EMPTY_MASK)); + + /* Mask all interrupts */ + writel(0, dev->base + IER_OFFSET); + + /* Check if there was a NAK */ + if (readl(dev->base + CS_OFFSET) & CS_ACK_MASK) { + dev_err(dev->device, "unexpected NAK\n"); + return -EREMOTEIO; + } + + /* Check if a timeout occured */ + if (!time_left) { + dev_err(dev->device, "completion timed out\n"); + return -EREMOTEIO; + } + + return 0; +} + + +/* Write any amount of data using TX FIFO to the i2c bus */ +static int bcm_kona_i2c_write_fifo(struct bcm_kona_i2c_dev *dev, + struct i2c_msg *msg) +{ + unsigned int bytes_to_write = MAX_TX_FIFO_SIZE; + unsigned int bytes_written = 0; + int rc; + + uint8_t *tmp_buf = msg->buf; + + while (bytes_written < msg->len) { + if (msg->len - bytes_written <= MAX_TX_FIFO_SIZE) + bytes_to_write = msg->len - bytes_written; + + rc = bcm_kona_i2c_write_fifo_single(dev, tmp_buf, + bytes_to_write); + if (rc < 0) + return -EREMOTEIO; + + bytes_written += bytes_to_write; + tmp_buf += bytes_to_write; + } + + return 0; +} + +/* Send i2c address */ +static int bcm_kona_i2c_do_addr(struct bcm_kona_i2c_dev *dev, + struct i2c_msg *msg) +{ + unsigned char addr; + + if (msg->flags & I2C_M_TEN) { + /* First byte is 11110XX0 where XX is upper 2 bits */ + addr = 0xF0 | ((msg->addr & 0x300) >> 7); + if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0) + return -EREMOTEIO; + + /* Second byte is the remaining 8 bits */ + addr = msg->addr & 0xFF; + if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0) + return -EREMOTEIO; + + if (msg->flags & I2C_M_RD) { + /* For read, send restart command */ + if (bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART) < 0) + return -EREMOTEIO; + + /* Then re-send the first byte with the read bit set */ + addr = 0xF0 | ((msg->addr & 0x300) >> 7) | 0x01; + if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0) + return -EREMOTEIO; + } + } else { + addr = msg->addr << 1; + + if (msg->flags & I2C_M_RD) + addr |= 1; + + if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0) + return -EREMOTEIO; + } + + return 0; +} + +static void bcm_kona_i2c_enable_autosense(struct bcm_kona_i2c_dev *dev) +{ + writel(readl(dev->base + CLKEN_OFFSET) & ~CLKEN_AUTOSENSE_OFF_MASK, + dev->base + CLKEN_OFFSET); +} + +static void bcm_kona_i2c_config_timing(struct bcm_kona_i2c_dev *dev) +{ + writel(readl(dev->base + HSTIM_OFFSET) & ~HSTIM_HS_MODE_MASK, + dev->base + HSTIM_OFFSET); + + writel((dev->std_cfg->prescale << TIM_PRESCALE_SHIFT) | + (dev->std_cfg->time_p << TIM_P_SHIFT) | + (dev->std_cfg->no_div << TIM_NO_DIV_SHIFT) | + (dev->std_cfg->time_div << TIM_DIV_SHIFT), + dev->base + TIM_OFFSET); + + writel((dev->std_cfg->time_m << CLKEN_M_SHIFT) | + (dev->std_cfg->time_n << CLKEN_N_SHIFT) | + CLKEN_CLKEN_MASK, + dev->base + CLKEN_OFFSET); +} + +static void bcm_kona_i2c_config_timing_hs(struct bcm_kona_i2c_dev *dev) +{ + writel((dev->hs_cfg->prescale << TIM_PRESCALE_SHIFT) | + (dev->hs_cfg->time_p << TIM_P_SHIFT) | + (dev->hs_cfg->no_div << TIM_NO_DIV_SHIFT) | + (dev->hs_cfg->time_div << TIM_DIV_SHIFT), + dev->base + TIM_OFFSET); + + writel((dev->hs_cfg->hs_hold << HSTIM_HS_HOLD_SHIFT) | + (dev->hs_cfg->hs_high_phase << HSTIM_HS_HIGH_PHASE_SHIFT) | + (dev->hs_cfg->hs_setup << HSTIM_HS_SETUP_SHIFT), + dev->base + HSTIM_OFFSET); + + writel(readl(dev->base + HSTIM_OFFSET) | HSTIM_HS_MODE_MASK, + dev->base + HSTIM_OFFSET); +} + +static int bcm_kona_i2c_switch_to_hs(struct bcm_kona_i2c_dev *dev) +{ + int rc; + + /* Send mastercode at standard speed */ + rc = bcm_kona_i2c_write_byte(dev, MASTERCODE, 1); + if (rc < 0) { + pr_err("High speed handshake failed\n"); + return rc; + } + + /* Configure external clock to higher frequency */ + rc = clk_set_rate(dev->external_clk, HS_EXT_CLK_FREQ); + if (rc) { + dev_err(dev->device, "%s: clk_set_rate returned %d\n", + __func__, rc); + return rc; + } + + /* Reconfigure internal dividers */ + bcm_kona_i2c_config_timing_hs(dev); + + /* Send a restart command */ + rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART); + if (rc < 0) + dev_err(dev->device, "High speed restart command failed\n"); + + return rc; +} + +static int bcm_kona_i2c_switch_to_std(struct bcm_kona_i2c_dev *dev) +{ + int rc; + + /* Reconfigure internal dividers */ + bcm_kona_i2c_config_timing(dev); + + /* Configure external clock to lower frequency */ + rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ); + if (rc) { + dev_err(dev->device, "%s: clk_set_rate returned %d\n", + __func__, rc); + } + + return rc; +} + +/* Master transfer function */ +static int bcm_kona_i2c_xfer(struct i2c_adapter *adapter, + struct i2c_msg msgs[], int num) +{ + struct bcm_kona_i2c_dev *dev = i2c_get_adapdata(adapter); + struct i2c_msg *pmsg; + int rc = 0; + int i; + + rc = clk_prepare_enable(dev->external_clk); + if (rc) { + dev_err(dev->device, "%s: peri clock enable failed. err %d\n", + __func__, rc); + return rc; + } + + /* Enable pad output */ + writel(0, dev->base + PADCTL_OFFSET); + + /* Enable internal clocks */ + bcm_kona_i2c_enable_clock(dev); + + /* Send start command */ + rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_START); + if (rc < 0) { + dev_err(dev->device, "Start command failed rc = %d\n", rc); + goto xfer_disable_pad; + } + + /* Switch to high speed if applicable */ + if (dev->hs_cfg) { + rc = bcm_kona_i2c_switch_to_hs(dev); + if (rc < 0) + goto xfer_send_stop; + } + + /* Loop through all messages */ + for (i = 0; i < num; i++) { + pmsg = &msgs[i]; + + /* Send restart for subsequent messages */ + if ((i != 0) && ((pmsg->flags & I2C_M_NOSTART) == 0)) { + rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART); + if (rc < 0) { + dev_err(dev->device, + "restart cmd failed rc = %d\n", rc); + goto xfer_send_stop; + } + } + + /* Send slave address */ + if (!(pmsg->flags & I2C_M_NOSTART)) { + rc = bcm_kona_i2c_do_addr(dev, pmsg); + if (rc < 0) { + dev_err(dev->device, + "NAK from addr %2.2x msg#%d rc = %d\n", + pmsg->addr, i, rc); + goto xfer_send_stop; + } + } + + /* Perform data transfer */ + if (pmsg->flags & I2C_M_RD) { + rc = bcm_kona_i2c_read_fifo(dev, pmsg); + if (rc < 0) { + dev_err(dev->device, "read failure\n"); + goto xfer_send_stop; + } + } else { + rc = bcm_kona_i2c_write_fifo(dev, pmsg); + if (rc < 0) { + dev_err(dev->device, "write failure"); + goto xfer_send_stop; + } + } + } + + rc = num; + +xfer_send_stop: + /* Send a STOP command */ + bcm_kona_send_i2c_cmd(dev, BCM_CMD_STOP); + + /* Return from high speed if applicable */ + if (dev->hs_cfg) { + int hs_rc = bcm_kona_i2c_switch_to_std(dev); + + if (hs_rc) + rc = hs_rc; + } + +xfer_disable_pad: + /* Disable pad output */ + writel(PADCTL_PAD_OUT_EN_MASK, dev->base + PADCTL_OFFSET); + + /* Stop internal clock */ + bcm_kona_i2c_disable_clock(dev); + + clk_disable_unprepare(dev->external_clk); + + return rc; +} + +static uint32_t bcm_kona_i2c_functionality(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR | + I2C_FUNC_NOSTART; +} + +static const struct i2c_algorithm bcm_algo = { + .master_xfer = bcm_kona_i2c_xfer, + .functionality = bcm_kona_i2c_functionality, +}; + +static int bcm_kona_i2c_assign_bus_speed(struct bcm_kona_i2c_dev *dev) +{ + unsigned int bus_speed; + int ret = of_property_read_u32(dev->device->of_node, "clock-frequency", + &bus_speed); + if (ret < 0) { + dev_err(dev->device, "missing clock-frequency property\n"); + return -ENODEV; + } + + switch (bus_speed) { + case 100000: + dev->std_cfg = &std_cfg_table[BCM_SPD_100K]; + break; + case 400000: + dev->std_cfg = &std_cfg_table[BCM_SPD_400K]; + break; + case 1000000: + dev->std_cfg = &std_cfg_table[BCM_SPD_1MHZ]; + break; + case 3400000: + /* Send mastercode at 100k */ + dev->std_cfg = &std_cfg_table[BCM_SPD_100K]; + dev->hs_cfg = &hs_cfg_table[BCM_SPD_3P4MHZ]; + break; + default: + pr_err("%d hz bus speed not supported\n", bus_speed); + pr_err("Valid speeds are 100khz, 400khz, 1mhz, and 3.4mhz\n"); + return -EINVAL; + } + + return 0; +} + +static int bcm_kona_i2c_probe(struct platform_device *pdev) +{ + int rc = 0; + struct bcm_kona_i2c_dev *dev; + struct i2c_adapter *adap; + struct resource *iomem; + + /* Allocate memory for private data structure */ + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + platform_set_drvdata(pdev, dev); + dev->device = &pdev->dev; + init_completion(&dev->done); + + /* Map hardware registers */ + iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + dev->base = devm_ioremap_resource(dev->device, iomem); + if (IS_ERR(dev->base)) + return -ENOMEM; + + /* Get and enable external clock */ + dev->external_clk = devm_clk_get(dev->device, NULL); + if (IS_ERR(dev->external_clk)) { + dev_err(dev->device, "couldn't get clock\n"); + return -ENODEV; + } + + rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ); + if (rc) { + dev_err(dev->device, "%s: clk_set_rate returned %d\n", + __func__, rc); + return rc; + } + + rc = clk_prepare_enable(dev->external_clk); + if (rc) { + dev_err(dev->device, "couldn't enable clock\n"); + return rc; + } + + /* Parse bus speed */ + rc = bcm_kona_i2c_assign_bus_speed(dev); + if (rc) + goto probe_disable_clk; + + /* Enable internal clocks */ + bcm_kona_i2c_enable_clock(dev); + + /* Configure internal dividers */ + bcm_kona_i2c_config_timing(dev); + + /* Disable timeout */ + writel(0, dev->base + TOUT_OFFSET); + + /* Enable autosense */ + bcm_kona_i2c_enable_autosense(dev); + + /* Enable TX FIFO */ + writel(TXFCR_FIFO_FLUSH_MASK | TXFCR_FIFO_EN_MASK, + dev->base + TXFCR_OFFSET); + + /* Mask all interrupts */ + writel(0, dev->base + IER_OFFSET); + + /* Clear all pending interrupts */ + writel(ISR_CMDBUSY_MASK | + ISR_READ_COMPLETE_MASK | + ISR_SES_DONE_MASK | + ISR_ERR_MASK | + ISR_TXFIFOEMPTY_MASK | + ISR_NOACK_MASK, + dev->base + ISR_OFFSET); + + /* Get the interrupt number */ + dev->irq = platform_get_irq(pdev, 0); + if (dev->irq < 0) { + dev_err(dev->device, "no irq resource\n"); + rc = -ENODEV; + goto probe_disable_clk; + } + + /* register the ISR handler */ + rc = devm_request_irq(&pdev->dev, dev->irq, bcm_kona_i2c_isr, + IRQF_SHARED, pdev->name, dev); + if (rc) { + dev_err(dev->device, "failed to request irq %i\n", dev->irq); + goto probe_disable_clk; + } + + /* Enable the controller but leave it idle */ + bcm_kona_i2c_send_cmd_to_ctrl(dev, BCM_CMD_NOACTION); + + /* Disable pad output */ + writel(PADCTL_PAD_OUT_EN_MASK, dev->base + PADCTL_OFFSET); + + /* Disable internal clock */ + bcm_kona_i2c_disable_clock(dev); + + /* Disable external clock */ + clk_disable_unprepare(dev->external_clk); + + /* Add the i2c adapter */ + adap = &dev->adapter; + i2c_set_adapdata(adap, dev); + adap->owner = THIS_MODULE; + strlcpy(adap->name, "Broadcom I2C adapter", sizeof(adap->name)); + adap->algo = &bcm_algo; + adap->dev.parent = &pdev->dev; + adap->dev.of_node = pdev->dev.of_node; + + rc = i2c_add_adapter(adap); + if (rc) { + dev_err(dev->device, "failed to add adapter\n"); + return rc; + } + + dev_info(dev->device, "device registered successfully\n"); + + return 0; + +probe_disable_clk: + bcm_kona_i2c_disable_clock(dev); + clk_disable_unprepare(dev->external_clk); + + return rc; +} + +static int bcm_kona_i2c_remove(struct platform_device *pdev) +{ + struct bcm_kona_i2c_dev *dev = platform_get_drvdata(pdev); + + i2c_del_adapter(&dev->adapter); + + return 0; +} + +static const struct of_device_id bcm_kona_i2c_of_match[] = { + {.compatible = "brcm,kona-i2c",}, + {}, +}; +MODULE_DEVICE_TABLE(of, kona_i2c_of_match); + +static struct platform_driver bcm_kona_i2c_driver = { + .driver = { + .name = "bcm-kona-i2c", + .owner = THIS_MODULE, + .of_match_table = bcm_kona_i2c_of_match, + }, + .probe = bcm_kona_i2c_probe, + .remove = bcm_kona_i2c_remove, +}; +module_platform_driver(bcm_kona_i2c_driver); + +MODULE_AUTHOR("Tim Kryger <tkryger@broadcom.com>"); +MODULE_DESCRIPTION("Broadcom Kona I2C Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c index 35a473ba3d81..3b9bd9a3f2b0 100644 --- a/drivers/i2c/busses/i2c-bfin-twi.c +++ b/drivers/i2c/busses/i2c-bfin-twi.c @@ -675,7 +675,7 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev) p_adap->retries = 3; rc = peripheral_request_list( - (unsigned short *)dev_get_platdata(&pdev->dev), + dev_get_platdata(&pdev->dev), "i2c-bfin-twi"); if (rc) { dev_err(&pdev->dev, "Can't setup pin mux!\n"); @@ -723,7 +723,7 @@ out_error_add_adapter: free_irq(iface->irq, iface); out_error_req_irq: out_error_no_irq: - peripheral_free_list((unsigned short *)dev_get_platdata(&pdev->dev)); + peripheral_free_list(dev_get_platdata(&pdev->dev)); out_error_pin_mux: iounmap(iface->regs_base); out_error_ioremap: @@ -739,7 +739,7 @@ static int i2c_bfin_twi_remove(struct platform_device *pdev) i2c_del_adapter(&(iface->adap)); free_irq(iface->irq, iface); - peripheral_free_list((unsigned short *)dev_get_platdata(&pdev->dev)); + peripheral_free_list(dev_get_platdata(&pdev->dev)); iounmap(iface->regs_base); kfree(iface); diff --git a/drivers/i2c/busses/i2c-cbus-gpio.c b/drivers/i2c/busses/i2c-cbus-gpio.c index 2d46f13adfdf..ce7ffba2b020 100644 --- a/drivers/i2c/busses/i2c-cbus-gpio.c +++ b/drivers/i2c/busses/i2c-cbus-gpio.c @@ -246,6 +246,7 @@ static int cbus_i2c_probe(struct platform_device *pdev) adapter->owner = THIS_MODULE; adapter->class = I2C_CLASS_HWMON; adapter->dev.parent = &pdev->dev; + adapter->dev.of_node = pdev->dev.of_node; adapter->nr = pdev->id; adapter->timeout = HZ; adapter->algo = &cbus_i2c_algo; @@ -289,6 +290,7 @@ static struct platform_driver cbus_i2c_driver = { .driver = { .owner = THIS_MODULE, .name = "i2c-cbus-gpio", + .of_match_table = of_match_ptr(i2c_cbus_dt_ids), }, }; module_platform_driver(cbus_i2c_driver); diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index 960dec61c64e..ff05d9fef4a8 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -795,7 +795,7 @@ static struct platform_driver davinci_i2c_driver = { .name = "i2c_davinci", .owner = THIS_MODULE, .pm = davinci_i2c_pm_ops, - .of_match_table = of_match_ptr(davinci_i2c_of_match), + .of_match_table = davinci_i2c_of_match, }, }; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 0aa01136f8d9..d0bdac0498ce 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -103,6 +103,8 @@ static int dw_i2c_acpi_configure(struct platform_device *pdev) static const struct acpi_device_id dw_i2c_acpi_match[] = { { "INT33C2", 0 }, { "INT33C3", 0 }, + { "INT3432", 0 }, + { "INT3433", 0 }, { "80860F41", 0 }, { } }; diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c index 0f3752967c4b..ff15ae90aaf5 100644 --- a/drivers/i2c/busses/i2c-eg20t.c +++ b/drivers/i2c/busses/i2c-eg20t.c @@ -312,24 +312,6 @@ static void pch_i2c_start(struct i2c_algo_pch_data *adap) } /** - * pch_i2c_getack() - to confirm ACK/NACK - * @adap: Pointer to struct i2c_algo_pch_data. - */ -static s32 pch_i2c_getack(struct i2c_algo_pch_data *adap) -{ - u32 reg_val; - void __iomem *p = adap->pch_base_address; - reg_val = ioread32(p + PCH_I2CSR) & PCH_GETACK; - - if (reg_val != 0) { - pch_err(adap, "return%d\n", -EPROTO); - return -EPROTO; - } - - return 0; -} - -/** * pch_i2c_stop() - generate stop condition in normal mode. * @adap: Pointer to struct i2c_algo_pch_data. */ @@ -344,6 +326,7 @@ static void pch_i2c_stop(struct i2c_algo_pch_data *adap) static int pch_i2c_wait_for_check_xfer(struct i2c_algo_pch_data *adap) { long ret; + void __iomem *p = adap->pch_base_address; ret = wait_event_timeout(pch_event, (adap->pch_event_flag != 0), msecs_to_jiffies(1000)); @@ -366,10 +349,9 @@ static int pch_i2c_wait_for_check_xfer(struct i2c_algo_pch_data *adap) adap->pch_event_flag = 0; - if (pch_i2c_getack(adap)) { - pch_dbg(adap, "Receive NACK for slave address" - "setting\n"); - return -EIO; + if (ioread32(p + PCH_I2CSR) & PCH_GETACK) { + pch_dbg(adap, "Receive NACK for slave address setting\n"); + return -ENXIO; } return 0; diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c new file mode 100644 index 000000000000..c1ef228095b5 --- /dev/null +++ b/drivers/i2c/busses/i2c-exynos5.c @@ -0,0 +1,769 @@ +/** + * i2c-exynos5.c - Samsung Exynos5 I2C Controller Driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/module.h> + +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/time.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/spinlock.h> + +/* + * HSI2C controller from Samsung supports 2 modes of operation + * 1. Auto mode: Where in master automatically controls the whole transaction + * 2. Manual mode: Software controls the transaction by issuing commands + * START, READ, WRITE, STOP, RESTART in I2C_MANUAL_CMD register. + * + * Operation mode can be selected by setting AUTO_MODE bit in I2C_CONF register + * + * Special bits are available for both modes of operation to set commands + * and for checking transfer status + */ + +/* Register Map */ +#define HSI2C_CTL 0x00 +#define HSI2C_FIFO_CTL 0x04 +#define HSI2C_TRAILIG_CTL 0x08 +#define HSI2C_CLK_CTL 0x0C +#define HSI2C_CLK_SLOT 0x10 +#define HSI2C_INT_ENABLE 0x20 +#define HSI2C_INT_STATUS 0x24 +#define HSI2C_ERR_STATUS 0x2C +#define HSI2C_FIFO_STATUS 0x30 +#define HSI2C_TX_DATA 0x34 +#define HSI2C_RX_DATA 0x38 +#define HSI2C_CONF 0x40 +#define HSI2C_AUTO_CONF 0x44 +#define HSI2C_TIMEOUT 0x48 +#define HSI2C_MANUAL_CMD 0x4C +#define HSI2C_TRANS_STATUS 0x50 +#define HSI2C_TIMING_HS1 0x54 +#define HSI2C_TIMING_HS2 0x58 +#define HSI2C_TIMING_HS3 0x5C +#define HSI2C_TIMING_FS1 0x60 +#define HSI2C_TIMING_FS2 0x64 +#define HSI2C_TIMING_FS3 0x68 +#define HSI2C_TIMING_SLA 0x6C +#define HSI2C_ADDR 0x70 + +/* I2C_CTL Register bits */ +#define HSI2C_FUNC_MODE_I2C (1u << 0) +#define HSI2C_MASTER (1u << 3) +#define HSI2C_RXCHON (1u << 6) +#define HSI2C_TXCHON (1u << 7) +#define HSI2C_SW_RST (1u << 31) + +/* I2C_FIFO_CTL Register bits */ +#define HSI2C_RXFIFO_EN (1u << 0) +#define HSI2C_TXFIFO_EN (1u << 1) +#define HSI2C_RXFIFO_TRIGGER_LEVEL(x) ((x) << 4) +#define HSI2C_TXFIFO_TRIGGER_LEVEL(x) ((x) << 16) + +/* As per user manual FIFO max depth is 64bytes */ +#define HSI2C_FIFO_MAX 0x40 +/* default trigger levels for Tx and Rx FIFOs */ +#define HSI2C_DEF_TXFIFO_LVL (HSI2C_FIFO_MAX - 0x30) +#define HSI2C_DEF_RXFIFO_LVL (HSI2C_FIFO_MAX - 0x10) + +/* I2C_TRAILING_CTL Register bits */ +#define HSI2C_TRAILING_COUNT (0xf) + +/* I2C_INT_EN Register bits */ +#define HSI2C_INT_TX_ALMOSTEMPTY_EN (1u << 0) +#define HSI2C_INT_RX_ALMOSTFULL_EN (1u << 1) +#define HSI2C_INT_TRAILING_EN (1u << 6) +#define HSI2C_INT_I2C_EN (1u << 9) + +/* I2C_INT_STAT Register bits */ +#define HSI2C_INT_TX_ALMOSTEMPTY (1u << 0) +#define HSI2C_INT_RX_ALMOSTFULL (1u << 1) +#define HSI2C_INT_TX_UNDERRUN (1u << 2) +#define HSI2C_INT_TX_OVERRUN (1u << 3) +#define HSI2C_INT_RX_UNDERRUN (1u << 4) +#define HSI2C_INT_RX_OVERRUN (1u << 5) +#define HSI2C_INT_TRAILING (1u << 6) +#define HSI2C_INT_I2C (1u << 9) + +/* I2C_FIFO_STAT Register bits */ +#define HSI2C_RX_FIFO_EMPTY (1u << 24) +#define HSI2C_RX_FIFO_FULL (1u << 23) +#define HSI2C_RX_FIFO_LVL(x) ((x >> 16) & 0x7f) +#define HSI2C_TX_FIFO_EMPTY (1u << 8) +#define HSI2C_TX_FIFO_FULL (1u << 7) +#define HSI2C_TX_FIFO_LVL(x) ((x >> 0) & 0x7f) + +/* I2C_CONF Register bits */ +#define HSI2C_AUTO_MODE (1u << 31) +#define HSI2C_10BIT_ADDR_MODE (1u << 30) +#define HSI2C_HS_MODE (1u << 29) + +/* I2C_AUTO_CONF Register bits */ +#define HSI2C_READ_WRITE (1u << 16) +#define HSI2C_STOP_AFTER_TRANS (1u << 17) +#define HSI2C_MASTER_RUN (1u << 31) + +/* I2C_TIMEOUT Register bits */ +#define HSI2C_TIMEOUT_EN (1u << 31) +#define HSI2C_TIMEOUT_MASK 0xff + +/* I2C_TRANS_STATUS register bits */ +#define HSI2C_MASTER_BUSY (1u << 17) +#define HSI2C_SLAVE_BUSY (1u << 16) +#define HSI2C_TIMEOUT_AUTO (1u << 4) +#define HSI2C_NO_DEV (1u << 3) +#define HSI2C_NO_DEV_ACK (1u << 2) +#define HSI2C_TRANS_ABORT (1u << 1) +#define HSI2C_TRANS_DONE (1u << 0) + +/* I2C_ADDR register bits */ +#define HSI2C_SLV_ADDR_SLV(x) ((x & 0x3ff) << 0) +#define HSI2C_SLV_ADDR_MAS(x) ((x & 0x3ff) << 10) +#define HSI2C_MASTER_ID(x) ((x & 0xff) << 24) +#define MASTER_ID(x) ((x & 0x7) + 0x08) + +/* + * Controller operating frequency, timing values for operation + * are calculated against this frequency + */ +#define HSI2C_HS_TX_CLOCK 1000000 +#define HSI2C_FS_TX_CLOCK 100000 +#define HSI2C_HIGH_SPD 1 +#define HSI2C_FAST_SPD 0 + +#define EXYNOS5_I2C_TIMEOUT (msecs_to_jiffies(1000)) + +struct exynos5_i2c { + struct i2c_adapter adap; + unsigned int suspended:1; + + struct i2c_msg *msg; + struct completion msg_complete; + unsigned int msg_ptr; + + unsigned int irq; + + void __iomem *regs; + struct clk *clk; + struct device *dev; + int state; + + spinlock_t lock; /* IRQ synchronization */ + + /* + * Since the TRANS_DONE bit is cleared on read, and we may read it + * either during an IRQ or after a transaction, keep track of its + * state here. + */ + int trans_done; + + /* Controller operating frequency */ + unsigned int fs_clock; + unsigned int hs_clock; + + /* + * HSI2C Controller can operate in + * 1. High speed upto 3.4Mbps + * 2. Fast speed upto 1Mbps + */ + int speed_mode; +}; + +static const struct of_device_id exynos5_i2c_match[] = { + { .compatible = "samsung,exynos5-hsi2c" }, + {}, +}; +MODULE_DEVICE_TABLE(of, exynos5_i2c_match); + +static void exynos5_i2c_clr_pend_irq(struct exynos5_i2c *i2c) +{ + writel(readl(i2c->regs + HSI2C_INT_STATUS), + i2c->regs + HSI2C_INT_STATUS); +} + +/* + * exynos5_i2c_set_timing: updates the registers with appropriate + * timing values calculated + * + * Returns 0 on success, -EINVAL if the cycle length cannot + * be calculated. + */ +static int exynos5_i2c_set_timing(struct exynos5_i2c *i2c, int mode) +{ + u32 i2c_timing_s1; + u32 i2c_timing_s2; + u32 i2c_timing_s3; + u32 i2c_timing_sla; + unsigned int t_start_su, t_start_hd; + unsigned int t_stop_su; + unsigned int t_data_su, t_data_hd; + unsigned int t_scl_l, t_scl_h; + unsigned int t_sr_release; + unsigned int t_ftl_cycle; + unsigned int clkin = clk_get_rate(i2c->clk); + unsigned int div, utemp0 = 0, utemp1 = 0, clk_cycle; + unsigned int op_clk = (mode == HSI2C_HIGH_SPD) ? + i2c->hs_clock : i2c->fs_clock; + + /* + * FPCLK / FI2C = + * (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2) + 8 + 2 * FLT_CYCLE + * utemp0 = (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2) + * utemp1 = (TSCLK_L + TSCLK_H + 2) + */ + t_ftl_cycle = (readl(i2c->regs + HSI2C_CONF) >> 16) & 0x7; + utemp0 = (clkin / op_clk) - 8 - 2 * t_ftl_cycle; + + /* CLK_DIV max is 256 */ + for (div = 0; div < 256; div++) { + utemp1 = utemp0 / (div + 1); + + /* + * SCL_L and SCL_H each has max value of 255 + * Hence, For the clk_cycle to the have right value + * utemp1 has to be less then 512 and more than 4. + */ + if ((utemp1 < 512) && (utemp1 > 4)) { + clk_cycle = utemp1 - 2; + break; + } else if (div == 255) { + dev_warn(i2c->dev, "Failed to calculate divisor"); + return -EINVAL; + } + } + + t_scl_l = clk_cycle / 2; + t_scl_h = clk_cycle / 2; + t_start_su = t_scl_l; + t_start_hd = t_scl_l; + t_stop_su = t_scl_l; + t_data_su = t_scl_l / 2; + t_data_hd = t_scl_l / 2; + t_sr_release = clk_cycle; + + i2c_timing_s1 = t_start_su << 24 | t_start_hd << 16 | t_stop_su << 8; + i2c_timing_s2 = t_data_su << 24 | t_scl_l << 8 | t_scl_h << 0; + i2c_timing_s3 = div << 16 | t_sr_release << 0; + i2c_timing_sla = t_data_hd << 0; + + dev_dbg(i2c->dev, "tSTART_SU: %X, tSTART_HD: %X, tSTOP_SU: %X\n", + t_start_su, t_start_hd, t_stop_su); + dev_dbg(i2c->dev, "tDATA_SU: %X, tSCL_L: %X, tSCL_H: %X\n", + t_data_su, t_scl_l, t_scl_h); + dev_dbg(i2c->dev, "nClkDiv: %X, tSR_RELEASE: %X\n", + div, t_sr_release); + dev_dbg(i2c->dev, "tDATA_HD: %X\n", t_data_hd); + + if (mode == HSI2C_HIGH_SPD) { + writel(i2c_timing_s1, i2c->regs + HSI2C_TIMING_HS1); + writel(i2c_timing_s2, i2c->regs + HSI2C_TIMING_HS2); + writel(i2c_timing_s3, i2c->regs + HSI2C_TIMING_HS3); + } else { + writel(i2c_timing_s1, i2c->regs + HSI2C_TIMING_FS1); + writel(i2c_timing_s2, i2c->regs + HSI2C_TIMING_FS2); + writel(i2c_timing_s3, i2c->regs + HSI2C_TIMING_FS3); + } + writel(i2c_timing_sla, i2c->regs + HSI2C_TIMING_SLA); + + return 0; +} + +static int exynos5_hsi2c_clock_setup(struct exynos5_i2c *i2c) +{ + /* + * Configure the Fast speed timing values + * Even the High Speed mode initially starts with Fast mode + */ + if (exynos5_i2c_set_timing(i2c, HSI2C_FAST_SPD)) { + dev_err(i2c->dev, "HSI2C FS Clock set up failed\n"); + return -EINVAL; + } + + /* configure the High speed timing values */ + if (i2c->speed_mode == HSI2C_HIGH_SPD) { + if (exynos5_i2c_set_timing(i2c, HSI2C_HIGH_SPD)) { + dev_err(i2c->dev, "HSI2C HS Clock set up failed\n"); + return -EINVAL; + } + } + + return 0; +} + +/* + * exynos5_i2c_init: configures the controller for I2C functionality + * Programs I2C controller for Master mode operation + */ +static void exynos5_i2c_init(struct exynos5_i2c *i2c) +{ + u32 i2c_conf = readl(i2c->regs + HSI2C_CONF); + u32 i2c_timeout = readl(i2c->regs + HSI2C_TIMEOUT); + + /* Clear to disable Timeout */ + i2c_timeout &= ~HSI2C_TIMEOUT_EN; + writel(i2c_timeout, i2c->regs + HSI2C_TIMEOUT); + + writel((HSI2C_FUNC_MODE_I2C | HSI2C_MASTER), + i2c->regs + HSI2C_CTL); + writel(HSI2C_TRAILING_COUNT, i2c->regs + HSI2C_TRAILIG_CTL); + + if (i2c->speed_mode == HSI2C_HIGH_SPD) { + writel(HSI2C_MASTER_ID(MASTER_ID(i2c->adap.nr)), + i2c->regs + HSI2C_ADDR); + i2c_conf |= HSI2C_HS_MODE; + } + + writel(i2c_conf | HSI2C_AUTO_MODE, i2c->regs + HSI2C_CONF); +} + +static void exynos5_i2c_reset(struct exynos5_i2c *i2c) +{ + u32 i2c_ctl; + + /* Set and clear the bit for reset */ + i2c_ctl = readl(i2c->regs + HSI2C_CTL); + i2c_ctl |= HSI2C_SW_RST; + writel(i2c_ctl, i2c->regs + HSI2C_CTL); + + i2c_ctl = readl(i2c->regs + HSI2C_CTL); + i2c_ctl &= ~HSI2C_SW_RST; + writel(i2c_ctl, i2c->regs + HSI2C_CTL); + + /* We don't expect calculations to fail during the run */ + exynos5_hsi2c_clock_setup(i2c); + /* Initialize the configure registers */ + exynos5_i2c_init(i2c); +} + +/* + * exynos5_i2c_irq: top level IRQ servicing routine + * + * INT_STATUS registers gives the interrupt details. Further, + * FIFO_STATUS or TRANS_STATUS registers are to be check for detailed + * state of the bus. + */ +static irqreturn_t exynos5_i2c_irq(int irqno, void *dev_id) +{ + struct exynos5_i2c *i2c = dev_id; + u32 fifo_level, int_status, fifo_status, trans_status; + unsigned char byte; + int len = 0; + + i2c->state = -EINVAL; + + spin_lock(&i2c->lock); + + int_status = readl(i2c->regs + HSI2C_INT_STATUS); + writel(int_status, i2c->regs + HSI2C_INT_STATUS); + fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS); + + /* handle interrupt related to the transfer status */ + if (int_status & HSI2C_INT_I2C) { + trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS); + if (trans_status & HSI2C_NO_DEV_ACK) { + dev_dbg(i2c->dev, "No ACK from device\n"); + i2c->state = -ENXIO; + goto stop; + } else if (trans_status & HSI2C_NO_DEV) { + dev_dbg(i2c->dev, "No device\n"); + i2c->state = -ENXIO; + goto stop; + } else if (trans_status & HSI2C_TRANS_ABORT) { + dev_dbg(i2c->dev, "Deal with arbitration lose\n"); + i2c->state = -EAGAIN; + goto stop; + } else if (trans_status & HSI2C_TIMEOUT_AUTO) { + dev_dbg(i2c->dev, "Accessing device timed out\n"); + i2c->state = -EAGAIN; + goto stop; + } else if (trans_status & HSI2C_TRANS_DONE) { + i2c->trans_done = 1; + i2c->state = 0; + } + } + + if ((i2c->msg->flags & I2C_M_RD) && (int_status & + (HSI2C_INT_TRAILING | HSI2C_INT_RX_ALMOSTFULL))) { + fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS); + fifo_level = HSI2C_RX_FIFO_LVL(fifo_status); + len = min(fifo_level, i2c->msg->len - i2c->msg_ptr); + + while (len > 0) { + byte = (unsigned char) + readl(i2c->regs + HSI2C_RX_DATA); + i2c->msg->buf[i2c->msg_ptr++] = byte; + len--; + } + i2c->state = 0; + } else if (int_status & HSI2C_INT_TX_ALMOSTEMPTY) { + fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS); + fifo_level = HSI2C_TX_FIFO_LVL(fifo_status); + + len = HSI2C_FIFO_MAX - fifo_level; + if (len > (i2c->msg->len - i2c->msg_ptr)) + len = i2c->msg->len - i2c->msg_ptr; + + while (len > 0) { + byte = i2c->msg->buf[i2c->msg_ptr++]; + writel(byte, i2c->regs + HSI2C_TX_DATA); + len--; + } + i2c->state = 0; + } + + stop: + if ((i2c->trans_done && (i2c->msg->len == i2c->msg_ptr)) || + (i2c->state < 0)) { + writel(0, i2c->regs + HSI2C_INT_ENABLE); + exynos5_i2c_clr_pend_irq(i2c); + complete(&i2c->msg_complete); + } + + spin_unlock(&i2c->lock); + + return IRQ_HANDLED; +} + +/* + * exynos5_i2c_wait_bus_idle + * + * Wait for the bus to go idle, indicated by the MASTER_BUSY bit being + * cleared. + * + * Returns -EBUSY if the bus cannot be bought to idle + */ +static int exynos5_i2c_wait_bus_idle(struct exynos5_i2c *i2c) +{ + unsigned long stop_time; + u32 trans_status; + + /* wait for 100 milli seconds for the bus to be idle */ + stop_time = jiffies + msecs_to_jiffies(100) + 1; + do { + trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS); + if (!(trans_status & HSI2C_MASTER_BUSY)) + return 0; + + usleep_range(50, 200); + } while (time_before(jiffies, stop_time)); + + return -EBUSY; +} + +/* + * exynos5_i2c_message_start: Configures the bus and starts the xfer + * i2c: struct exynos5_i2c pointer for the current bus + * stop: Enables stop after transfer if set. Set for last transfer of + * in the list of messages. + * + * Configures the bus for read/write function + * Sets chip address to talk to, message length to be sent. + * Enables appropriate interrupts and sends start xfer command. + */ +static void exynos5_i2c_message_start(struct exynos5_i2c *i2c, int stop) +{ + u32 i2c_ctl; + u32 int_en = HSI2C_INT_I2C_EN; + u32 i2c_auto_conf = 0; + u32 fifo_ctl; + unsigned long flags; + + i2c_ctl = readl(i2c->regs + HSI2C_CTL); + i2c_ctl &= ~(HSI2C_TXCHON | HSI2C_RXCHON); + fifo_ctl = HSI2C_RXFIFO_EN | HSI2C_TXFIFO_EN; + + if (i2c->msg->flags & I2C_M_RD) { + i2c_ctl |= HSI2C_RXCHON; + + i2c_auto_conf = HSI2C_READ_WRITE; + + fifo_ctl |= HSI2C_RXFIFO_TRIGGER_LEVEL(HSI2C_DEF_TXFIFO_LVL); + int_en |= (HSI2C_INT_RX_ALMOSTFULL_EN | + HSI2C_INT_TRAILING_EN); + } else { + i2c_ctl |= HSI2C_TXCHON; + + fifo_ctl |= HSI2C_TXFIFO_TRIGGER_LEVEL(HSI2C_DEF_RXFIFO_LVL); + int_en |= HSI2C_INT_TX_ALMOSTEMPTY_EN; + } + + writel(HSI2C_SLV_ADDR_MAS(i2c->msg->addr), i2c->regs + HSI2C_ADDR); + + writel(fifo_ctl, i2c->regs + HSI2C_FIFO_CTL); + writel(i2c_ctl, i2c->regs + HSI2C_CTL); + + + /* + * Enable interrupts before starting the transfer so that we don't + * miss any INT_I2C interrupts. + */ + spin_lock_irqsave(&i2c->lock, flags); + writel(int_en, i2c->regs + HSI2C_INT_ENABLE); + + if (stop == 1) + i2c_auto_conf |= HSI2C_STOP_AFTER_TRANS; + i2c_auto_conf |= i2c->msg->len; + i2c_auto_conf |= HSI2C_MASTER_RUN; + writel(i2c_auto_conf, i2c->regs + HSI2C_AUTO_CONF); + spin_unlock_irqrestore(&i2c->lock, flags); +} + +static int exynos5_i2c_xfer_msg(struct exynos5_i2c *i2c, + struct i2c_msg *msgs, int stop) +{ + unsigned long timeout; + int ret; + + i2c->msg = msgs; + i2c->msg_ptr = 0; + i2c->trans_done = 0; + + reinit_completion(&i2c->msg_complete); + + exynos5_i2c_message_start(i2c, stop); + + timeout = wait_for_completion_timeout(&i2c->msg_complete, + EXYNOS5_I2C_TIMEOUT); + if (timeout == 0) + ret = -ETIMEDOUT; + else + ret = i2c->state; + + /* + * If this is the last message to be transfered (stop == 1) + * Then check if the bus can be brought back to idle. + */ + if (ret == 0 && stop) + ret = exynos5_i2c_wait_bus_idle(i2c); + + if (ret < 0) { + exynos5_i2c_reset(i2c); + if (ret == -ETIMEDOUT) + dev_warn(i2c->dev, "%s timeout\n", + (msgs->flags & I2C_M_RD) ? "rx" : "tx"); + } + + /* Return the state as in interrupt routine */ + return ret; +} + +static int exynos5_i2c_xfer(struct i2c_adapter *adap, + struct i2c_msg *msgs, int num) +{ + struct exynos5_i2c *i2c = (struct exynos5_i2c *)adap->algo_data; + int i = 0, ret = 0, stop = 0; + + if (i2c->suspended) { + dev_err(i2c->dev, "HS-I2C is not initialzed.\n"); + return -EIO; + } + + clk_prepare_enable(i2c->clk); + + for (i = 0; i < num; i++, msgs++) { + stop = (i == num - 1); + + ret = exynos5_i2c_xfer_msg(i2c, msgs, stop); + + if (ret < 0) + goto out; + } + + if (i == num) { + ret = num; + } else { + /* Only one message, cannot access the device */ + if (i == 1) + ret = -EREMOTEIO; + else + ret = i; + + dev_warn(i2c->dev, "xfer message failed\n"); + } + + out: + clk_disable_unprepare(i2c->clk); + return ret; +} + +static u32 exynos5_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); +} + +static const struct i2c_algorithm exynos5_i2c_algorithm = { + .master_xfer = exynos5_i2c_xfer, + .functionality = exynos5_i2c_func, +}; + +static int exynos5_i2c_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct exynos5_i2c *i2c; + struct resource *mem; + unsigned int op_clock; + int ret; + + i2c = devm_kzalloc(&pdev->dev, sizeof(struct exynos5_i2c), GFP_KERNEL); + if (!i2c) { + dev_err(&pdev->dev, "no memory for state\n"); + return -ENOMEM; + } + + if (of_property_read_u32(np, "clock-frequency", &op_clock)) { + i2c->speed_mode = HSI2C_FAST_SPD; + i2c->fs_clock = HSI2C_FS_TX_CLOCK; + } else { + if (op_clock >= HSI2C_HS_TX_CLOCK) { + i2c->speed_mode = HSI2C_HIGH_SPD; + i2c->fs_clock = HSI2C_FS_TX_CLOCK; + i2c->hs_clock = op_clock; + } else { + i2c->speed_mode = HSI2C_FAST_SPD; + i2c->fs_clock = op_clock; + } + } + + strlcpy(i2c->adap.name, "exynos5-i2c", sizeof(i2c->adap.name)); + i2c->adap.owner = THIS_MODULE; + i2c->adap.algo = &exynos5_i2c_algorithm; + i2c->adap.retries = 3; + + i2c->dev = &pdev->dev; + i2c->clk = devm_clk_get(&pdev->dev, "hsi2c"); + if (IS_ERR(i2c->clk)) { + dev_err(&pdev->dev, "cannot get clock\n"); + return -ENOENT; + } + + clk_prepare_enable(i2c->clk); + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + i2c->regs = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(i2c->regs)) { + ret = PTR_ERR(i2c->regs); + goto err_clk; + } + + i2c->adap.dev.of_node = np; + i2c->adap.algo_data = i2c; + i2c->adap.dev.parent = &pdev->dev; + + /* Clear pending interrupts from u-boot or misc causes */ + exynos5_i2c_clr_pend_irq(i2c); + + spin_lock_init(&i2c->lock); + init_completion(&i2c->msg_complete); + + i2c->irq = ret = platform_get_irq(pdev, 0); + if (ret <= 0) { + dev_err(&pdev->dev, "cannot find HS-I2C IRQ\n"); + ret = -EINVAL; + goto err_clk; + } + + ret = devm_request_irq(&pdev->dev, i2c->irq, exynos5_i2c_irq, + IRQF_NO_SUSPEND | IRQF_ONESHOT, + dev_name(&pdev->dev), i2c); + + if (ret != 0) { + dev_err(&pdev->dev, "cannot request HS-I2C IRQ %d\n", i2c->irq); + goto err_clk; + } + + ret = exynos5_hsi2c_clock_setup(i2c); + if (ret) + goto err_clk; + + exynos5_i2c_init(i2c); + + ret = i2c_add_adapter(&i2c->adap); + if (ret < 0) { + dev_err(&pdev->dev, "failed to add bus to i2c core\n"); + goto err_clk; + } + + platform_set_drvdata(pdev, i2c); + + err_clk: + clk_disable_unprepare(i2c->clk); + return ret; +} + +static int exynos5_i2c_remove(struct platform_device *pdev) +{ + struct exynos5_i2c *i2c = platform_get_drvdata(pdev); + + i2c_del_adapter(&i2c->adap); + + return 0; +} + +static int exynos5_i2c_suspend_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct exynos5_i2c *i2c = platform_get_drvdata(pdev); + + i2c->suspended = 1; + + return 0; +} + +static int exynos5_i2c_resume_noirq(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct exynos5_i2c *i2c = platform_get_drvdata(pdev); + int ret = 0; + + clk_prepare_enable(i2c->clk); + + ret = exynos5_hsi2c_clock_setup(i2c); + if (ret) { + clk_disable_unprepare(i2c->clk); + return ret; + } + + exynos5_i2c_init(i2c); + clk_disable_unprepare(i2c->clk); + i2c->suspended = 0; + + return 0; +} + +static SIMPLE_DEV_PM_OPS(exynos5_i2c_dev_pm_ops, exynos5_i2c_suspend_noirq, + exynos5_i2c_resume_noirq); + +static struct platform_driver exynos5_i2c_driver = { + .probe = exynos5_i2c_probe, + .remove = exynos5_i2c_remove, + .driver = { + .owner = THIS_MODULE, + .name = "exynos5-hsi2c", + .pm = &exynos5_i2c_dev_pm_ops, + .of_match_table = exynos5_i2c_match, + }, +}; + +module_platform_driver(exynos5_i2c_driver); + +MODULE_DESCRIPTION("Exynos5 HS-I2C Bus driver"); +MODULE_AUTHOR("Naveen Krishna Chatradhi, <ch.naveen@samsung.com>"); +MODULE_AUTHOR("Taekgyun Ko, <taeggyun.ko@samsung.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c index bfa02c6c2dda..d9f7e186a4c7 100644 --- a/drivers/i2c/busses/i2c-gpio.c +++ b/drivers/i2c/busses/i2c-gpio.c @@ -15,6 +15,7 @@ #include <linux/slab.h> #include <linux/platform_device.h> #include <linux/gpio.h> +#include <linux/of.h> #include <linux/of_gpio.h> struct i2c_gpio_private_data { diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 4296d1721272..737e29866887 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -59,6 +59,7 @@ Wellsburg (PCH) MS 0x8d7e 32 hard yes yes yes Wellsburg (PCH) MS 0x8d7f 32 hard yes yes yes Coleto Creek (PCH) 0x23b0 32 hard yes yes yes + Wildcat Point-LP (PCH) 0x9ca2 32 hard yes yes yes Features supported by this driver: Software PEC no @@ -177,6 +178,7 @@ #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1 0x8d7e #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2 0x8d7f #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS 0x9c22 +#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS 0x9ca2 struct i801_mux_config { char *gpio_chip; @@ -819,6 +821,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = { { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2) }, { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) }, { 0, } }; diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index d3e9cc3153a9..8be7e42aa4de 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -911,7 +911,7 @@ static struct platform_driver mv64xxx_i2c_driver = { .driver = { .owner = THIS_MODULE, .name = MV64XXX_I2C_CTLR_NAME, - .of_match_table = of_match_ptr(mv64xxx_i2c_of_match_table), + .of_match_table = mv64xxx_i2c_of_match_table, }, }; diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 3aedd86a6468..0cde4e6ab2b2 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -1,6 +1,7 @@ /* * Freescale MXS I2C bus driver * + * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de> * Copyright (C) 2011-2012 Wolfram Sang, Pengutronix e.K. * * based on a (non-working) driver which was: @@ -34,10 +35,12 @@ #define MXS_I2C_CTRL0 (0x00) #define MXS_I2C_CTRL0_SET (0x04) +#define MXS_I2C_CTRL0_CLR (0x08) #define MXS_I2C_CTRL0_SFTRST 0x80000000 #define MXS_I2C_CTRL0_RUN 0x20000000 #define MXS_I2C_CTRL0_SEND_NAK_ON_LAST 0x02000000 +#define MXS_I2C_CTRL0_PIO_MODE 0x01000000 #define MXS_I2C_CTRL0_RETAIN_CLOCK 0x00200000 #define MXS_I2C_CTRL0_POST_SEND_STOP 0x00100000 #define MXS_I2C_CTRL0_PRE_SEND_START 0x00080000 @@ -64,13 +67,13 @@ #define MXS_I2C_CTRL1_SLAVE_IRQ 0x01 #define MXS_I2C_STAT (0x50) +#define MXS_I2C_STAT_GOT_A_NAK 0x10000000 #define MXS_I2C_STAT_BUS_BUSY 0x00000800 #define MXS_I2C_STAT_CLK_GEN_BUSY 0x00000400 -#define MXS_I2C_DATA (0xa0) +#define MXS_I2C_DATA(i2c) ((i2c->dev_type == MXS_I2C_V1) ? 0x60 : 0xa0) -#define MXS_I2C_DEBUG0 (0xb0) -#define MXS_I2C_DEBUG0_CLR (0xb8) +#define MXS_I2C_DEBUG0_CLR(i2c) ((i2c->dev_type == MXS_I2C_V1) ? 0x78 : 0xb8) #define MXS_I2C_DEBUG0_DMAREQ 0x80000000 @@ -95,10 +98,17 @@ #define MXS_CMD_I2C_READ (MXS_I2C_CTRL0_SEND_NAK_ON_LAST | \ MXS_I2C_CTRL0_MASTER_MODE) +enum mxs_i2c_devtype { + MXS_I2C_UNKNOWN = 0, + MXS_I2C_V1, + MXS_I2C_V2, +}; + /** * struct mxs_i2c_dev - per device, private MXS-I2C data * * @dev: driver model device node + * @dev_type: distinguish i.MX23/i.MX28 features * @regs: IO registers pointer * @cmd_complete: completion object for transaction wait * @cmd_err: error code for last transaction @@ -106,6 +116,7 @@ */ struct mxs_i2c_dev { struct device *dev; + enum mxs_i2c_devtype dev_type; void __iomem *regs; struct completion cmd_complete; int cmd_err; @@ -291,48 +302,11 @@ write_init_pio_fail: return -EINVAL; } -static int mxs_i2c_pio_wait_dmareq(struct mxs_i2c_dev *i2c) +static int mxs_i2c_pio_wait_xfer_end(struct mxs_i2c_dev *i2c) { unsigned long timeout = jiffies + msecs_to_jiffies(1000); - while (!(readl(i2c->regs + MXS_I2C_DEBUG0) & - MXS_I2C_DEBUG0_DMAREQ)) { - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - cond_resched(); - } - - return 0; -} - -static int mxs_i2c_pio_wait_cplt(struct mxs_i2c_dev *i2c, int last) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(1000); - - /* - * We do not use interrupts in the PIO mode. Due to the - * maximum transfer length being 8 bytes in PIO mode, the - * overhead of interrupt would be too large and this would - * neglect the gain from using the PIO mode. - */ - - while (!(readl(i2c->regs + MXS_I2C_CTRL1) & - MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ)) { - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - cond_resched(); - } - - writel(MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ, - i2c->regs + MXS_I2C_CTRL1_CLR); - - /* - * When ending a transfer with a stop, we have to wait for the bus to - * go idle before we report the transfer as completed. Otherwise the - * start of the next transfer may race with the end of the current one. - */ - while (last && (readl(i2c->regs + MXS_I2C_STAT) & - (MXS_I2C_STAT_BUS_BUSY | MXS_I2C_STAT_CLK_GEN_BUSY))) { + while (readl(i2c->regs + MXS_I2C_CTRL0) & MXS_I2C_CTRL0_RUN) { if (time_after(jiffies, timeout)) return -ETIMEDOUT; cond_resched(); @@ -370,106 +344,215 @@ static void mxs_i2c_pio_trigger_cmd(struct mxs_i2c_dev *i2c, u32 cmd) writel(reg, i2c->regs + MXS_I2C_CTRL0); } +/* + * Start WRITE transaction on the I2C bus. By studying i.MX23 datasheet, + * CTRL0::PIO_MODE bit description clarifies the order in which the registers + * must be written during PIO mode operation. First, the CTRL0 register has + * to be programmed with all the necessary bits but the RUN bit. Then the + * payload has to be written into the DATA register. Finally, the transmission + * is executed by setting the RUN bit in CTRL0. + */ +static void mxs_i2c_pio_trigger_write_cmd(struct mxs_i2c_dev *i2c, u32 cmd, + u32 data) +{ + writel(cmd, i2c->regs + MXS_I2C_CTRL0); + + if (i2c->dev_type == MXS_I2C_V1) + writel(MXS_I2C_CTRL0_PIO_MODE, i2c->regs + MXS_I2C_CTRL0_SET); + + writel(data, i2c->regs + MXS_I2C_DATA(i2c)); + writel(MXS_I2C_CTRL0_RUN, i2c->regs + MXS_I2C_CTRL0_SET); +} + static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap, struct i2c_msg *msg, uint32_t flags) { struct mxs_i2c_dev *i2c = i2c_get_adapdata(adap); uint32_t addr_data = msg->addr << 1; uint32_t data = 0; - int i, shifts_left, ret; + int i, ret, xlen = 0, xmit = 0; + uint32_t start; /* Mute IRQs coming from this block. */ writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_CLR); + /* + * MX23 idea: + * - Enable CTRL0::PIO_MODE (1 << 24) + * - Enable CTRL1::ACK_MODE (1 << 27) + * + * WARNING! The MX23 is broken in some way, even if it claims + * to support PIO, when we try to transfer any amount of data + * that is not aligned to 4 bytes, the DMA engine will have + * bits in DEBUG1::DMA_BYTES_ENABLES still set even after the + * transfer. This in turn will mess up the next transfer as + * the block it emit one byte write onto the bus terminated + * with a NAK+STOP. A possible workaround is to reset the IP + * block after every PIO transmission, which might just work. + * + * NOTE: The CTRL0::PIO_MODE description is important, since + * it outlines how the PIO mode is really supposed to work. + */ if (msg->flags & I2C_M_RD) { + /* + * PIO READ transfer: + * + * This transfer MUST be limited to 4 bytes maximum. It is not + * possible to transfer more than four bytes via PIO, since we + * can not in any way make sure we can read the data from the + * DATA register fast enough. Besides, the RX FIFO is only four + * bytes deep, thus we can only really read up to four bytes at + * time. Finally, there is no bit indicating us that new data + * arrived at the FIFO and can thus be fetched from the DATA + * register. + */ + BUG_ON(msg->len > 4); + addr_data |= I2C_SMBUS_READ; /* SELECT command. */ - mxs_i2c_pio_trigger_cmd(i2c, MXS_CMD_I2C_SELECT); - - ret = mxs_i2c_pio_wait_dmareq(i2c); - if (ret) - return ret; - - writel(addr_data, i2c->regs + MXS_I2C_DATA); - writel(MXS_I2C_DEBUG0_DMAREQ, i2c->regs + MXS_I2C_DEBUG0_CLR); + mxs_i2c_pio_trigger_write_cmd(i2c, MXS_CMD_I2C_SELECT, + addr_data); - ret = mxs_i2c_pio_wait_cplt(i2c, 0); - if (ret) - return ret; - - if (mxs_i2c_pio_check_error_state(i2c)) + ret = mxs_i2c_pio_wait_xfer_end(i2c); + if (ret) { + dev_err(i2c->dev, + "PIO: Failed to send SELECT command!\n"); goto cleanup; + } /* READ command. */ mxs_i2c_pio_trigger_cmd(i2c, MXS_CMD_I2C_READ | flags | MXS_I2C_CTRL0_XFER_COUNT(msg->len)); + ret = mxs_i2c_pio_wait_xfer_end(i2c); + if (ret) { + dev_err(i2c->dev, + "PIO: Failed to send SELECT command!\n"); + goto cleanup; + } + + data = readl(i2c->regs + MXS_I2C_DATA(i2c)); for (i = 0; i < msg->len; i++) { - if ((i & 3) == 0) { - ret = mxs_i2c_pio_wait_dmareq(i2c); - if (ret) - return ret; - data = readl(i2c->regs + MXS_I2C_DATA); - writel(MXS_I2C_DEBUG0_DMAREQ, - i2c->regs + MXS_I2C_DEBUG0_CLR); - } msg->buf[i] = data & 0xff; data >>= 8; } } else { + /* + * PIO WRITE transfer: + * + * The code below implements clock stretching to circumvent + * the possibility of kernel not being able to supply data + * fast enough. It is possible to transfer arbitrary amount + * of data using PIO write. + */ addr_data |= I2C_SMBUS_WRITE; - /* WRITE command. */ - mxs_i2c_pio_trigger_cmd(i2c, - MXS_CMD_I2C_WRITE | flags | - MXS_I2C_CTRL0_XFER_COUNT(msg->len + 1)); - /* * The LSB of data buffer is the first byte blasted across * the bus. Higher order bytes follow. Thus the following * filling schematic. */ + data = addr_data << 24; + + /* Start the transfer with START condition. */ + start = MXS_I2C_CTRL0_PRE_SEND_START; + + /* If the transfer is long, use clock stretching. */ + if (msg->len > 3) + start |= MXS_I2C_CTRL0_RETAIN_CLOCK; + for (i = 0; i < msg->len; i++) { data >>= 8; data |= (msg->buf[i] << 24); - if ((i & 3) == 2) { - ret = mxs_i2c_pio_wait_dmareq(i2c); - if (ret) - return ret; - writel(data, i2c->regs + MXS_I2C_DATA); - writel(MXS_I2C_DEBUG0_DMAREQ, - i2c->regs + MXS_I2C_DEBUG0_CLR); + + xmit = 0; + + /* This is the last transfer of the message. */ + if (i + 1 == msg->len) { + /* Add optional STOP flag. */ + start |= flags; + /* Remove RETAIN_CLOCK bit. */ + start &= ~MXS_I2C_CTRL0_RETAIN_CLOCK; + xmit = 1; } - } - shifts_left = 24 - (i & 3) * 8; - if (shifts_left) { - data >>= shifts_left; - ret = mxs_i2c_pio_wait_dmareq(i2c); - if (ret) - return ret; - writel(data, i2c->regs + MXS_I2C_DATA); + /* Four bytes are ready in the "data" variable. */ + if ((i & 3) == 2) + xmit = 1; + + /* Nothing interesting happened, continue stuffing. */ + if (!xmit) + continue; + + /* + * Compute the size of the transfer and shift the + * data accordingly. + * + * i = (4k + 0) .... xlen = 2 + * i = (4k + 1) .... xlen = 3 + * i = (4k + 2) .... xlen = 4 + * i = (4k + 3) .... xlen = 1 + */ + + if ((i % 4) == 3) + xlen = 1; + else + xlen = (i % 4) + 2; + + data >>= (4 - xlen) * 8; + + dev_dbg(i2c->dev, + "PIO: len=%i pos=%i total=%i [W%s%s%s]\n", + xlen, i, msg->len, + start & MXS_I2C_CTRL0_PRE_SEND_START ? "S" : "", + start & MXS_I2C_CTRL0_POST_SEND_STOP ? "E" : "", + start & MXS_I2C_CTRL0_RETAIN_CLOCK ? "C" : ""); + writel(MXS_I2C_DEBUG0_DMAREQ, - i2c->regs + MXS_I2C_DEBUG0_CLR); + i2c->regs + MXS_I2C_DEBUG0_CLR(i2c)); + + mxs_i2c_pio_trigger_write_cmd(i2c, + start | MXS_I2C_CTRL0_MASTER_MODE | + MXS_I2C_CTRL0_DIRECTION | + MXS_I2C_CTRL0_XFER_COUNT(xlen), data); + + /* The START condition is sent only once. */ + start &= ~MXS_I2C_CTRL0_PRE_SEND_START; + + /* Wait for the end of the transfer. */ + ret = mxs_i2c_pio_wait_xfer_end(i2c); + if (ret) { + dev_err(i2c->dev, + "PIO: Failed to finish WRITE cmd!\n"); + break; + } + + /* Check NAK here. */ + ret = readl(i2c->regs + MXS_I2C_STAT) & + MXS_I2C_STAT_GOT_A_NAK; + if (ret) { + ret = -ENXIO; + goto cleanup; + } } } - ret = mxs_i2c_pio_wait_cplt(i2c, flags & MXS_I2C_CTRL0_POST_SEND_STOP); - if (ret) - return ret; - /* make sure we capture any occurred error into cmd_err */ - mxs_i2c_pio_check_error_state(i2c); + ret = mxs_i2c_pio_check_error_state(i2c); cleanup: /* Clear any dangling IRQs and re-enable interrupts. */ writel(MXS_I2C_IRQ_MASK, i2c->regs + MXS_I2C_CTRL1_CLR); writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET); - return 0; + /* Clear the PIO_MODE on i.MX23 */ + if (i2c->dev_type == MXS_I2C_V1) + writel(MXS_I2C_CTRL0_PIO_MODE, i2c->regs + MXS_I2C_CTRL0_CLR); + + return ret; } /* @@ -479,8 +562,9 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) { struct mxs_i2c_dev *i2c = i2c_get_adapdata(adap); - int ret, err; + int ret; int flags; + int use_pio = 0; flags = stop ? MXS_I2C_CTRL0_POST_SEND_STOP : 0; @@ -491,19 +575,21 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, return -EINVAL; /* - * The current boundary to select between PIO/DMA transfer method - * is set to 8 bytes, transfers shorter than 8 bytes are transfered - * using PIO mode while longer transfers use DMA. The 8 byte border is - * based on this empirical measurement and a lot of previous frobbing. + * The MX28 I2C IP block can only do PIO READ for transfer of to up + * 4 bytes of length. The write transfer is not limited as it can use + * clock stretching to avoid FIFO underruns. */ + if ((msg->flags & I2C_M_RD) && (msg->len <= 4)) + use_pio = 1; + if (!(msg->flags & I2C_M_RD) && (msg->len < 7)) + use_pio = 1; + i2c->cmd_err = 0; - if (0) { /* disable PIO mode until a proper fix is made */ + if (use_pio) { ret = mxs_i2c_pio_setup_xfer(adap, msg, flags); - if (ret) { - err = mxs_i2c_reset(i2c); - if (err) - return err; - } + /* No need to reset the block if NAK was received. */ + if (ret && (ret != -ENXIO)) + mxs_i2c_reset(i2c); } else { reinit_completion(&i2c->cmd_complete); ret = mxs_i2c_dma_setup_xfer(adap, msg, flags); @@ -514,9 +600,11 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, msecs_to_jiffies(1000)); if (ret == 0) goto timeout; + + ret = i2c->cmd_err; } - if (i2c->cmd_err == -ENXIO) { + if (ret == -ENXIO) { /* * If the transfer fails with a NAK from the slave the * controller halts until it gets told to return to idle state. @@ -525,7 +613,19 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, i2c->regs + MXS_I2C_CTRL1_SET); } - ret = i2c->cmd_err; + /* + * WARNING! + * The i.MX23 is strange. After each and every operation, it's I2C IP + * block must be reset, otherwise the IP block will misbehave. This can + * be observed on the bus by the block sending out one single byte onto + * the bus. In case such an error happens, bit 27 will be set in the + * DEBUG0 register. This bit is not documented in the i.MX23 datasheet + * and is marked as "TBD" instead. To reset this bit to a correct state, + * reset the whole block. Since the block reset does not take long, do + * reset the block after every transfer to play safe. + */ + if (i2c->dev_type == MXS_I2C_V1) + mxs_i2c_reset(i2c); dev_dbg(i2c->dev, "Done with err=%d\n", ret); @@ -680,8 +780,28 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c) return 0; } +static struct platform_device_id mxs_i2c_devtype[] = { + { + .name = "imx23-i2c", + .driver_data = MXS_I2C_V1, + }, { + .name = "imx28-i2c", + .driver_data = MXS_I2C_V2, + }, { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, mxs_i2c_devtype); + +static const struct of_device_id mxs_i2c_dt_ids[] = { + { .compatible = "fsl,imx23-i2c", .data = &mxs_i2c_devtype[0], }, + { .compatible = "fsl,imx28-i2c", .data = &mxs_i2c_devtype[1], }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, mxs_i2c_dt_ids); + static int mxs_i2c_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = + of_match_device(mxs_i2c_dt_ids, &pdev->dev); struct device *dev = &pdev->dev; struct mxs_i2c_dev *i2c; struct i2c_adapter *adap; @@ -693,6 +813,11 @@ static int mxs_i2c_probe(struct platform_device *pdev) if (!i2c) return -ENOMEM; + if (of_id) { + const struct platform_device_id *device_id = of_id->data; + i2c->dev_type = device_id->driver_data; + } + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); @@ -768,12 +893,6 @@ static int mxs_i2c_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id mxs_i2c_dt_ids[] = { - { .compatible = "fsl,imx28-i2c", }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, mxs_i2c_dt_ids); - static struct platform_driver mxs_i2c_driver = { .driver = { .name = DRIVER_NAME, @@ -796,6 +915,7 @@ static void __exit mxs_i2c_exit(void) } module_exit(mxs_i2c_exit); +MODULE_AUTHOR("Marek Vasut <marex@denx.de>"); MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>"); MODULE_DESCRIPTION("MXS I2C Bus Driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index a6a891d7970d..d76228d81d5f 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -1037,6 +1037,20 @@ static const struct i2c_algorithm omap_i2c_algo = { }; #ifdef CONFIG_OF +static struct omap_i2c_bus_platform_data omap2420_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_NO_FIFO | + OMAP_I2C_FLAG_SIMPLE_CLOCK | + OMAP_I2C_FLAG_16BIT_DATA_REG | + OMAP_I2C_FLAG_BUS_SHIFT_2, +}; + +static struct omap_i2c_bus_platform_data omap2430_pdata = { + .rev = OMAP_I2C_IP_VERSION_1, + .flags = OMAP_I2C_FLAG_BUS_SHIFT_2 | + OMAP_I2C_FLAG_FORCE_19200_INT_CLK, +}; + static struct omap_i2c_bus_platform_data omap3_pdata = { .rev = OMAP_I2C_IP_VERSION_1, .flags = OMAP_I2C_FLAG_BUS_SHIFT_2, @@ -1055,6 +1069,14 @@ static const struct of_device_id omap_i2c_of_match[] = { .compatible = "ti,omap3-i2c", .data = &omap3_pdata, }, + { + .compatible = "ti,omap2430-i2c", + .data = &omap2430_pdata, + }, + { + .compatible = "ti,omap2420-i2c", + .data = &omap2420_pdata, + }, { }, }; MODULE_DEVICE_TABLE(of, omap_i2c_of_match); diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c index 1a9ea25f2314..c9a352f0a9a5 100644 --- a/drivers/i2c/busses/i2c-pnx.c +++ b/drivers/i2c/busses/i2c-pnx.c @@ -23,6 +23,7 @@ #include <linux/err.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/of.h> #define I2C_PNX_TIMEOUT_DEFAULT 10 /* msec */ #define I2C_PNX_SPEED_KHZ_DEFAULT 100 diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index d2fe11da5e82..2c2fd7c2b116 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -33,6 +33,7 @@ #include <linux/i2c/i2c-rcar.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> @@ -102,8 +103,8 @@ enum { #define ID_NACK (1 << 4) enum rcar_i2c_type { - I2C_RCAR_H1, - I2C_RCAR_H2, + I2C_RCAR_GEN1, + I2C_RCAR_GEN2, }; struct rcar_i2c_priv { @@ -226,22 +227,23 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv, u32 bus_speed, struct device *dev) { - struct clk *clkp = clk_get(NULL, "peripheral_clk"); + struct clk *clkp = clk_get(dev, NULL); u32 scgd, cdf; u32 round, ick; u32 scl; u32 cdf_width; + unsigned long rate; - if (!clkp) { - dev_err(dev, "there is no peripheral_clk\n"); - return -EIO; + if (IS_ERR(clkp)) { + dev_err(dev, "couldn't get clock\n"); + return PTR_ERR(clkp); } switch (priv->devtype) { - case I2C_RCAR_H1: + case I2C_RCAR_GEN1: cdf_width = 2; break; - case I2C_RCAR_H2: + case I2C_RCAR_GEN2: cdf_width = 3; break; default: @@ -264,15 +266,14 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv, * clkp : peripheral_clk * F[] : integer up-valuation */ - for (cdf = 0; cdf < (1 << cdf_width); cdf++) { - ick = clk_get_rate(clkp) / (1 + cdf); - if (ick < 20000000) - goto ick_find; + rate = clk_get_rate(clkp); + cdf = rate / 20000000; + if (cdf >= 1 << cdf_width) { + dev_err(dev, "Input clock %lu too high\n", rate); + return -EIO; } - dev_err(dev, "there is no best CDF\n"); - return -EIO; + ick = rate / (cdf + 1); -ick_find: /* * it is impossible to calculate large scale * number on u32. separate it @@ -290,6 +291,12 @@ ick_find: * * Calculation result (= SCL) should be less than * bus_speed for hardware safety + * + * We could use something along the lines of + * div = ick / (bus_speed + 1) + 1; + * scgd = (div - 20 - round + 7) / 8; + * scl = ick / (20 + (scgd * 8) + round); + * (not fully verified) but that would get pretty involved */ for (scgd = 0; scgd < 0x40; scgd++) { scl = ick / (20 + (scgd * 8) + round); @@ -306,7 +313,7 @@ scgd_find: /* * keep icccr value */ - priv->icccr = (scgd << (cdf_width) | cdf); + priv->icccr = scgd << cdf_width | cdf; return 0; } @@ -632,6 +639,15 @@ static const struct i2c_algorithm rcar_i2c_algo = { .functionality = rcar_i2c_func, }; +static const struct of_device_id rcar_i2c_dt_ids[] = { + { .compatible = "renesas,i2c-rcar", .data = (void *)I2C_RCAR_GEN1 }, + { .compatible = "renesas,i2c-r8a7778", .data = (void *)I2C_RCAR_GEN1 }, + { .compatible = "renesas,i2c-r8a7779", .data = (void *)I2C_RCAR_GEN1 }, + { .compatible = "renesas,i2c-r8a7790", .data = (void *)I2C_RCAR_GEN2 }, + {}, +}; +MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids); + static int rcar_i2c_probe(struct platform_device *pdev) { struct i2c_rcar_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -649,10 +665,15 @@ static int rcar_i2c_probe(struct platform_device *pdev) } bus_speed = 100000; /* default 100 kHz */ - if (pdata && pdata->bus_speed) + ret = of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed); + if (ret < 0 && pdata && pdata->bus_speed) bus_speed = pdata->bus_speed; - priv->devtype = platform_get_device_id(pdev)->driver_data; + if (pdev->dev.of_node) + priv->devtype = (long)of_match_device(rcar_i2c_dt_ids, + dev)->data; + else + priv->devtype = platform_get_device_id(pdev)->driver_data; ret = rcar_i2c_clock_calculate(priv, bus_speed, dev); if (ret < 0) @@ -673,6 +694,7 @@ static int rcar_i2c_probe(struct platform_device *pdev) adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD; adap->retries = 3; adap->dev.parent = dev; + adap->dev.of_node = dev->of_node; i2c_set_adapdata(adap, priv); strlcpy(adap->name, pdev->name, sizeof(adap->name)); @@ -709,9 +731,9 @@ static int rcar_i2c_remove(struct platform_device *pdev) } static struct platform_device_id rcar_i2c_id_table[] = { - { "i2c-rcar", I2C_RCAR_H1 }, - { "i2c-rcar_h1", I2C_RCAR_H1 }, - { "i2c-rcar_h2", I2C_RCAR_H2 }, + { "i2c-rcar", I2C_RCAR_GEN1 }, + { "i2c-rcar_gen1", I2C_RCAR_GEN1 }, + { "i2c-rcar_gen2", I2C_RCAR_GEN2 }, {}, }; MODULE_DEVICE_TABLE(platform, rcar_i2c_id_table); @@ -720,6 +742,7 @@ static struct platform_driver rcar_i2c_driver = { .driver = { .name = "i2c-rcar", .owner = THIS_MODULE, + .of_match_table = rcar_i2c_dt_ids, }, .probe = rcar_i2c_probe, .remove = rcar_i2c_remove, diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 3747b9bf67d6..bf8fb94ebc5d 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -36,6 +36,7 @@ #include <linux/cpufreq.h> #include <linux/slab.h> #include <linux/io.h> +#include <linux/of.h> #include <linux/of_gpio.h> #include <linux/pinctrl/consumer.h> diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c index c447e8d40b78..599235514138 100644 --- a/drivers/i2c/busses/i2c-scmi.c +++ b/drivers/i2c/busses/i2c-scmi.c @@ -223,7 +223,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, goto out; obj = pkg->package.elements + 1; - if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) { + if (obj->type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, "Invalid argument type")); result = -EIO; goto out; @@ -235,7 +235,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, case I2C_SMBUS_BYTE: case I2C_SMBUS_BYTE_DATA: case I2C_SMBUS_WORD_DATA: - if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) { + if (obj->type != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, "Invalid argument type")); result = -EIO; goto out; @@ -246,7 +246,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, data->byte = obj->integer.value; break; case I2C_SMBUS_BLOCK_DATA: - if (obj == NULL || obj->type != ACPI_TYPE_BUFFER) { + if (obj->type != ACPI_TYPE_BUFFER) { ACPI_ERROR((AE_INFO, "Invalid argument type")); result = -EIO; goto out; diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 55110ddbed1f..1d79585ba4b3 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -235,7 +235,7 @@ static void sh_mobile_i2c_init(struct sh_mobile_i2c_data *pd) int offset; /* Get clock rate after clock is enabled */ - clk_enable(pd->clk); + clk_prepare_enable(pd->clk); i2c_clk_khz = clk_get_rate(pd->clk) / 1000; i2c_clk_khz /= pd->clks_per_count; @@ -270,14 +270,14 @@ static void sh_mobile_i2c_init(struct sh_mobile_i2c_data *pd) pd->icic &= ~ICIC_ICCHB8; out: - clk_disable(pd->clk); + clk_disable_unprepare(pd->clk); } static void activate_ch(struct sh_mobile_i2c_data *pd) { /* Wake up device and enable clock */ pm_runtime_get_sync(pd->dev); - clk_enable(pd->clk); + clk_prepare_enable(pd->clk); /* Enable channel and configure rx ack */ iic_set_clr(pd, ICCR, ICCR_ICE, 0); @@ -300,7 +300,7 @@ static void deactivate_ch(struct sh_mobile_i2c_data *pd) iic_set_clr(pd, ICCR, 0, ICCR_ICE); /* Disable clock and mark device as idle */ - clk_disable(pd->clk); + clk_disable_unprepare(pd->clk); pm_runtime_put_sync(pd->dev); } diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c new file mode 100644 index 000000000000..9cf715d69551 --- /dev/null +++ b/drivers/i2c/busses/i2c-st.c @@ -0,0 +1,872 @@ +/* + * Copyright (C) 2013 STMicroelectronics + * + * I2C master mode controller driver, used in STMicroelectronics devices. + * + * Author: Maxime Coquelin <maxime.coquelin@st.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2, as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> + +/* SSC registers */ +#define SSC_BRG 0x000 +#define SSC_TBUF 0x004 +#define SSC_RBUF 0x008 +#define SSC_CTL 0x00C +#define SSC_IEN 0x010 +#define SSC_STA 0x014 +#define SSC_I2C 0x018 +#define SSC_SLAD 0x01C +#define SSC_REP_START_HOLD 0x020 +#define SSC_START_HOLD 0x024 +#define SSC_REP_START_SETUP 0x028 +#define SSC_DATA_SETUP 0x02C +#define SSC_STOP_SETUP 0x030 +#define SSC_BUS_FREE 0x034 +#define SSC_TX_FSTAT 0x038 +#define SSC_RX_FSTAT 0x03C +#define SSC_PRE_SCALER_BRG 0x040 +#define SSC_CLR 0x080 +#define SSC_NOISE_SUPP_WIDTH 0x100 +#define SSC_PRSCALER 0x104 +#define SSC_NOISE_SUPP_WIDTH_DATAOUT 0x108 +#define SSC_PRSCALER_DATAOUT 0x10c + +/* SSC Control */ +#define SSC_CTL_DATA_WIDTH_9 0x8 +#define SSC_CTL_DATA_WIDTH_MSK 0xf +#define SSC_CTL_BM 0xf +#define SSC_CTL_HB BIT(4) +#define SSC_CTL_PH BIT(5) +#define SSC_CTL_PO BIT(6) +#define SSC_CTL_SR BIT(7) +#define SSC_CTL_MS BIT(8) +#define SSC_CTL_EN BIT(9) +#define SSC_CTL_LPB BIT(10) +#define SSC_CTL_EN_TX_FIFO BIT(11) +#define SSC_CTL_EN_RX_FIFO BIT(12) +#define SSC_CTL_EN_CLST_RX BIT(13) + +/* SSC Interrupt Enable */ +#define SSC_IEN_RIEN BIT(0) +#define SSC_IEN_TIEN BIT(1) +#define SSC_IEN_TEEN BIT(2) +#define SSC_IEN_REEN BIT(3) +#define SSC_IEN_PEEN BIT(4) +#define SSC_IEN_AASEN BIT(6) +#define SSC_IEN_STOPEN BIT(7) +#define SSC_IEN_ARBLEN BIT(8) +#define SSC_IEN_NACKEN BIT(10) +#define SSC_IEN_REPSTRTEN BIT(11) +#define SSC_IEN_TX_FIFO_HALF BIT(12) +#define SSC_IEN_RX_FIFO_HALF_FULL BIT(14) + +/* SSC Status */ +#define SSC_STA_RIR BIT(0) +#define SSC_STA_TIR BIT(1) +#define SSC_STA_TE BIT(2) +#define SSC_STA_RE BIT(3) +#define SSC_STA_PE BIT(4) +#define SSC_STA_CLST BIT(5) +#define SSC_STA_AAS BIT(6) +#define SSC_STA_STOP BIT(7) +#define SSC_STA_ARBL BIT(8) +#define SSC_STA_BUSY BIT(9) +#define SSC_STA_NACK BIT(10) +#define SSC_STA_REPSTRT BIT(11) +#define SSC_STA_TX_FIFO_HALF BIT(12) +#define SSC_STA_TX_FIFO_FULL BIT(13) +#define SSC_STA_RX_FIFO_HALF BIT(14) + +/* SSC I2C Control */ +#define SSC_I2C_I2CM BIT(0) +#define SSC_I2C_STRTG BIT(1) +#define SSC_I2C_STOPG BIT(2) +#define SSC_I2C_ACKG BIT(3) +#define SSC_I2C_AD10 BIT(4) +#define SSC_I2C_TXENB BIT(5) +#define SSC_I2C_REPSTRTG BIT(11) +#define SSC_I2C_SLAVE_DISABLE BIT(12) + +/* SSC Tx FIFO Status */ +#define SSC_TX_FSTAT_STATUS 0x07 + +/* SSC Rx FIFO Status */ +#define SSC_RX_FSTAT_STATUS 0x07 + +/* SSC Clear bit operation */ +#define SSC_CLR_SSCAAS BIT(6) +#define SSC_CLR_SSCSTOP BIT(7) +#define SSC_CLR_SSCARBL BIT(8) +#define SSC_CLR_NACK BIT(10) +#define SSC_CLR_REPSTRT BIT(11) + +/* SSC Clock Prescaler */ +#define SSC_PRSC_VALUE 0x0f + + +#define SSC_TXFIFO_SIZE 0x8 +#define SSC_RXFIFO_SIZE 0x8 + +enum st_i2c_mode { + I2C_MODE_STANDARD, + I2C_MODE_FAST, + I2C_MODE_END, +}; + +/** + * struct st_i2c_timings - per-Mode tuning parameters + * @rate: I2C bus rate + * @rep_start_hold: I2C repeated start hold time requirement + * @rep_start_setup: I2C repeated start set up time requirement + * @start_hold: I2C start hold time requirement + * @data_setup_time: I2C data set up time requirement + * @stop_setup_time: I2C stop set up time requirement + * @bus_free_time: I2C bus free time requirement + * @sda_pulse_min_limit: I2C SDA pulse mini width limit + */ +struct st_i2c_timings { + u32 rate; + u32 rep_start_hold; + u32 rep_start_setup; + u32 start_hold; + u32 data_setup_time; + u32 stop_setup_time; + u32 bus_free_time; + u32 sda_pulse_min_limit; +}; + +/** + * struct st_i2c_client - client specific data + * @addr: 8-bit slave addr, including r/w bit + * @count: number of bytes to be transfered + * @xfered: number of bytes already transferred + * @buf: data buffer + * @result: result of the transfer + * @stop: last I2C msg to be sent, i.e. STOP to be generated + */ +struct st_i2c_client { + u8 addr; + u32 count; + u32 xfered; + u8 *buf; + int result; + bool stop; +}; + +/** + * struct st_i2c_dev - private data of the controller + * @adap: I2C adapter for this controller + * @dev: device for this controller + * @base: virtual memory area + * @complete: completion of I2C message + * @irq: interrupt line for th controller + * @clk: hw ssc block clock + * @mode: I2C mode of the controller. Standard or Fast only supported + * @scl_min_width_us: SCL line minimum pulse width in us + * @sda_min_width_us: SDA line minimum pulse width in us + * @client: I2C transfert information + * @busy: I2C transfer on-going + */ +struct st_i2c_dev { + struct i2c_adapter adap; + struct device *dev; + void __iomem *base; + struct completion complete; + int irq; + struct clk *clk; + int mode; + u32 scl_min_width_us; + u32 sda_min_width_us; + struct st_i2c_client client; + bool busy; +}; + +static inline void st_i2c_set_bits(void __iomem *reg, u32 mask) +{ + writel_relaxed(readl_relaxed(reg) | mask, reg); +} + +static inline void st_i2c_clr_bits(void __iomem *reg, u32 mask) +{ + writel_relaxed(readl_relaxed(reg) & ~mask, reg); +} + +/* From I2C Specifications v0.5 */ +static struct st_i2c_timings i2c_timings[] = { + [I2C_MODE_STANDARD] = { + .rate = 100000, + .rep_start_hold = 4000, + .rep_start_setup = 4700, + .start_hold = 4000, + .data_setup_time = 250, + .stop_setup_time = 4000, + .bus_free_time = 4700, + }, + [I2C_MODE_FAST] = { + .rate = 400000, + .rep_start_hold = 600, + .rep_start_setup = 600, + .start_hold = 600, + .data_setup_time = 100, + .stop_setup_time = 600, + .bus_free_time = 1300, + }, +}; + +static void st_i2c_flush_rx_fifo(struct st_i2c_dev *i2c_dev) +{ + int count, i; + + /* + * Counter only counts up to 7 but fifo size is 8... + * When fifo is full, counter is 0 and RIR bit of status register is + * set + */ + if (readl_relaxed(i2c_dev->base + SSC_STA) & SSC_STA_RIR) + count = SSC_RXFIFO_SIZE; + else + count = readl_relaxed(i2c_dev->base + SSC_RX_FSTAT) & + SSC_RX_FSTAT_STATUS; + + for (i = 0; i < count; i++) + readl_relaxed(i2c_dev->base + SSC_RBUF); +} + +static void st_i2c_soft_reset(struct st_i2c_dev *i2c_dev) +{ + /* + * FIFO needs to be emptied before reseting the IP, + * else the controller raises a BUSY error. + */ + st_i2c_flush_rx_fifo(i2c_dev); + + st_i2c_set_bits(i2c_dev->base + SSC_CTL, SSC_CTL_SR); + st_i2c_clr_bits(i2c_dev->base + SSC_CTL, SSC_CTL_SR); +} + +/** + * st_i2c_hw_config() - Prepare SSC block, calculate and apply tuning timings + * @i2c_dev: Controller's private data + */ +static void st_i2c_hw_config(struct st_i2c_dev *i2c_dev) +{ + unsigned long rate; + u32 val, ns_per_clk; + struct st_i2c_timings *t = &i2c_timings[i2c_dev->mode]; + + st_i2c_soft_reset(i2c_dev); + + val = SSC_CLR_REPSTRT | SSC_CLR_NACK | SSC_CLR_SSCARBL | + SSC_CLR_SSCAAS | SSC_CLR_SSCSTOP; + writel_relaxed(val, i2c_dev->base + SSC_CLR); + + /* SSC Control register setup */ + val = SSC_CTL_PO | SSC_CTL_PH | SSC_CTL_HB | SSC_CTL_DATA_WIDTH_9; + writel_relaxed(val, i2c_dev->base + SSC_CTL); + + rate = clk_get_rate(i2c_dev->clk); + ns_per_clk = 1000000000 / rate; + + /* Baudrate */ + val = rate / (2 * t->rate); + writel_relaxed(val, i2c_dev->base + SSC_BRG); + + /* Pre-scaler baudrate */ + writel_relaxed(1, i2c_dev->base + SSC_PRE_SCALER_BRG); + + /* Enable I2C mode */ + writel_relaxed(SSC_I2C_I2CM, i2c_dev->base + SSC_I2C); + + /* Repeated start hold time */ + val = t->rep_start_hold / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_REP_START_HOLD); + + /* Repeated start set up time */ + val = t->rep_start_setup / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_REP_START_SETUP); + + /* Start hold time */ + val = t->start_hold / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_START_HOLD); + + /* Data set up time */ + val = t->data_setup_time / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_DATA_SETUP); + + /* Stop set up time */ + val = t->stop_setup_time / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_STOP_SETUP); + + /* Bus free time */ + val = t->bus_free_time / ns_per_clk; + writel_relaxed(val, i2c_dev->base + SSC_BUS_FREE); + + /* Prescalers set up */ + val = rate / 10000000; + writel_relaxed(val, i2c_dev->base + SSC_PRSCALER); + writel_relaxed(val, i2c_dev->base + SSC_PRSCALER_DATAOUT); + + /* Noise suppression witdh */ + val = i2c_dev->scl_min_width_us * rate / 100000000; + writel_relaxed(val, i2c_dev->base + SSC_NOISE_SUPP_WIDTH); + + /* Noise suppression max output data delay width */ + val = i2c_dev->sda_min_width_us * rate / 100000000; + writel_relaxed(val, i2c_dev->base + SSC_NOISE_SUPP_WIDTH_DATAOUT); +} + +static int st_i2c_wait_free_bus(struct st_i2c_dev *i2c_dev) +{ + u32 sta; + int i; + + for (i = 0; i < 10; i++) { + sta = readl_relaxed(i2c_dev->base + SSC_STA); + if (!(sta & SSC_STA_BUSY)) + return 0; + + usleep_range(2000, 4000); + } + + dev_err(i2c_dev->dev, "bus not free (status = 0x%08x)\n", sta); + + return -EBUSY; +} + +/** + * st_i2c_write_tx_fifo() - Write a byte in the Tx FIFO + * @i2c_dev: Controller's private data + * @byte: Data to write in the Tx FIFO + */ +static inline void st_i2c_write_tx_fifo(struct st_i2c_dev *i2c_dev, u8 byte) +{ + u16 tbuf = byte << 1; + + writel_relaxed(tbuf | 1, i2c_dev->base + SSC_TBUF); +} + +/** + * st_i2c_wr_fill_tx_fifo() - Fill the Tx FIFO in write mode + * @i2c_dev: Controller's private data + * + * This functions fills the Tx FIFO with I2C transfert buffer when + * in write mode. + */ +static void st_i2c_wr_fill_tx_fifo(struct st_i2c_dev *i2c_dev) +{ + struct st_i2c_client *c = &i2c_dev->client; + u32 tx_fstat, sta; + int i; + + sta = readl_relaxed(i2c_dev->base + SSC_STA); + if (sta & SSC_STA_TX_FIFO_FULL) + return; + + tx_fstat = readl_relaxed(i2c_dev->base + SSC_TX_FSTAT); + tx_fstat &= SSC_TX_FSTAT_STATUS; + + if (c->count < (SSC_TXFIFO_SIZE - tx_fstat)) + i = c->count; + else + i = SSC_TXFIFO_SIZE - tx_fstat; + + for (; i > 0; i--, c->count--, c->buf++) + st_i2c_write_tx_fifo(i2c_dev, *c->buf); +} + +/** + * st_i2c_rd_fill_tx_fifo() - Fill the Tx FIFO in read mode + * @i2c_dev: Controller's private data + * + * This functions fills the Tx FIFO with fixed pattern when + * in read mode to trigger clock. + */ +static void st_i2c_rd_fill_tx_fifo(struct st_i2c_dev *i2c_dev, int max) +{ + struct st_i2c_client *c = &i2c_dev->client; + u32 tx_fstat, sta; + int i; + + sta = readl_relaxed(i2c_dev->base + SSC_STA); + if (sta & SSC_STA_TX_FIFO_FULL) + return; + + tx_fstat = readl_relaxed(i2c_dev->base + SSC_TX_FSTAT); + tx_fstat &= SSC_TX_FSTAT_STATUS; + + if (max < (SSC_TXFIFO_SIZE - tx_fstat)) + i = max; + else + i = SSC_TXFIFO_SIZE - tx_fstat; + + for (; i > 0; i--, c->xfered++) + st_i2c_write_tx_fifo(i2c_dev, 0xff); +} + +static void st_i2c_read_rx_fifo(struct st_i2c_dev *i2c_dev) +{ + struct st_i2c_client *c = &i2c_dev->client; + u32 i, sta; + u16 rbuf; + + sta = readl_relaxed(i2c_dev->base + SSC_STA); + if (sta & SSC_STA_RIR) { + i = SSC_RXFIFO_SIZE; + } else { + i = readl_relaxed(i2c_dev->base + SSC_RX_FSTAT); + i &= SSC_RX_FSTAT_STATUS; + } + + for (; (i > 0) && (c->count > 0); i--, c->count--) { + rbuf = readl_relaxed(i2c_dev->base + SSC_RBUF) >> 1; + *c->buf++ = (u8)rbuf & 0xff; + } + + if (i) { + dev_err(i2c_dev->dev, "Unexpected %d bytes in rx fifo\n", i); + st_i2c_flush_rx_fifo(i2c_dev); + } +} + +/** + * st_i2c_terminate_xfer() - Send either STOP or REPSTART condition + * @i2c_dev: Controller's private data + */ +static void st_i2c_terminate_xfer(struct st_i2c_dev *i2c_dev) +{ + struct st_i2c_client *c = &i2c_dev->client; + + st_i2c_clr_bits(i2c_dev->base + SSC_IEN, SSC_IEN_TEEN); + st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STRTG); + + if (c->stop) { + st_i2c_set_bits(i2c_dev->base + SSC_IEN, SSC_IEN_STOPEN); + st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG); + } else { + st_i2c_set_bits(i2c_dev->base + SSC_IEN, SSC_IEN_REPSTRTEN); + st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_REPSTRTG); + } +} + +/** + * st_i2c_handle_write() - Handle FIFO empty interrupt in case of write + * @i2c_dev: Controller's private data + */ +static void st_i2c_handle_write(struct st_i2c_dev *i2c_dev) +{ + struct st_i2c_client *c = &i2c_dev->client; + + st_i2c_flush_rx_fifo(i2c_dev); + + if (!c->count) + /* End of xfer, send stop or repstart */ + st_i2c_terminate_xfer(i2c_dev); + else + st_i2c_wr_fill_tx_fifo(i2c_dev); +} + +/** + * st_i2c_handle_write() - Handle FIFO enmpty interrupt in case of read + * @i2c_dev: Controller's private data + */ +static void st_i2c_handle_read(struct st_i2c_dev *i2c_dev) +{ + struct st_i2c_client *c = &i2c_dev->client; + u32 ien; + + /* Trash the address read back */ + if (!c->xfered) { + readl_relaxed(i2c_dev->base + SSC_RBUF); + st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_TXENB); + } else { + st_i2c_read_rx_fifo(i2c_dev); + } + + if (!c->count) { + /* End of xfer, send stop or repstart */ + st_i2c_terminate_xfer(i2c_dev); + } else if (c->count == 1) { + /* Penultimate byte to xfer, disable ACK gen. */ + st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_ACKG); + + /* Last received byte is to be handled by NACK interrupt */ + ien = SSC_IEN_NACKEN | SSC_IEN_ARBLEN; + writel_relaxed(ien, i2c_dev->base + SSC_IEN); + + st_i2c_rd_fill_tx_fifo(i2c_dev, c->count); + } else { + st_i2c_rd_fill_tx_fifo(i2c_dev, c->count - 1); + } +} + +/** + * st_i2c_isr() - Interrupt routine + * @irq: interrupt number + * @data: Controller's private data + */ +static irqreturn_t st_i2c_isr_thread(int irq, void *data) +{ + struct st_i2c_dev *i2c_dev = data; + struct st_i2c_client *c = &i2c_dev->client; + u32 sta, ien; + int it; + + ien = readl_relaxed(i2c_dev->base + SSC_IEN); + sta = readl_relaxed(i2c_dev->base + SSC_STA); + + /* Use __fls() to check error bits first */ + it = __fls(sta & ien); + if (it < 0) { + dev_dbg(i2c_dev->dev, "spurious it (sta=0x%04x, ien=0x%04x)\n", + sta, ien); + return IRQ_NONE; + } + + switch (1 << it) { + case SSC_STA_TE: + if (c->addr & I2C_M_RD) + st_i2c_handle_read(i2c_dev); + else + st_i2c_handle_write(i2c_dev); + break; + + case SSC_STA_STOP: + case SSC_STA_REPSTRT: + writel_relaxed(0, i2c_dev->base + SSC_IEN); + complete(&i2c_dev->complete); + break; + + case SSC_STA_NACK: + writel_relaxed(SSC_CLR_NACK, i2c_dev->base + SSC_CLR); + + /* Last received byte handled by NACK interrupt */ + if ((c->addr & I2C_M_RD) && (c->count == 1) && (c->xfered)) { + st_i2c_handle_read(i2c_dev); + break; + } + + it = SSC_IEN_STOPEN | SSC_IEN_ARBLEN; + writel_relaxed(it, i2c_dev->base + SSC_IEN); + + st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG); + c->result = -EIO; + break; + + case SSC_STA_ARBL: + writel_relaxed(SSC_CLR_SSCARBL, i2c_dev->base + SSC_CLR); + + it = SSC_IEN_STOPEN | SSC_IEN_ARBLEN; + writel_relaxed(it, i2c_dev->base + SSC_IEN); + + st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG); + c->result = -EIO; + break; + + default: + dev_err(i2c_dev->dev, + "it %d unhandled (sta=0x%04x)\n", it, sta); + } + + /* + * Read IEN register to ensure interrupt mask write is effective + * before re-enabling interrupt at GIC level, and thus avoid spurious + * interrupts. + */ + readl(i2c_dev->base + SSC_IEN); + + return IRQ_HANDLED; +} + +/** + * st_i2c_xfer_msg() - Transfer a single I2C message + * @i2c_dev: Controller's private data + * @msg: I2C message to transfer + * @is_first: first message of the sequence + * @is_last: last message of the sequence + */ +static int st_i2c_xfer_msg(struct st_i2c_dev *i2c_dev, struct i2c_msg *msg, + bool is_first, bool is_last) +{ + struct st_i2c_client *c = &i2c_dev->client; + u32 ctl, i2c, it; + unsigned long timeout; + int ret; + + c->addr = (u8)(msg->addr << 1); + c->addr |= (msg->flags & I2C_M_RD); + c->buf = msg->buf; + c->count = msg->len; + c->xfered = 0; + c->result = 0; + c->stop = is_last; + + reinit_completion(&i2c_dev->complete); + + ctl = SSC_CTL_EN | SSC_CTL_MS | SSC_CTL_EN_RX_FIFO | SSC_CTL_EN_TX_FIFO; + st_i2c_set_bits(i2c_dev->base + SSC_CTL, ctl); + + i2c = SSC_I2C_TXENB; + if (c->addr & I2C_M_RD) + i2c |= SSC_I2C_ACKG; + st_i2c_set_bits(i2c_dev->base + SSC_I2C, i2c); + + /* Write slave address */ + st_i2c_write_tx_fifo(i2c_dev, c->addr); + + /* Pre-fill Tx fifo with data in case of write */ + if (!(c->addr & I2C_M_RD)) + st_i2c_wr_fill_tx_fifo(i2c_dev); + + it = SSC_IEN_NACKEN | SSC_IEN_TEEN | SSC_IEN_ARBLEN; + writel_relaxed(it, i2c_dev->base + SSC_IEN); + + if (is_first) { + ret = st_i2c_wait_free_bus(i2c_dev); + if (ret) + return ret; + + st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STRTG); + } + + timeout = wait_for_completion_timeout(&i2c_dev->complete, + i2c_dev->adap.timeout); + ret = c->result; + + if (!timeout) { + dev_err(i2c_dev->dev, "Write to slave 0x%x timed out\n", + c->addr); + ret = -ETIMEDOUT; + } + + i2c = SSC_I2C_STOPG | SSC_I2C_REPSTRTG; + st_i2c_clr_bits(i2c_dev->base + SSC_I2C, i2c); + + writel_relaxed(SSC_CLR_SSCSTOP | SSC_CLR_REPSTRT, + i2c_dev->base + SSC_CLR); + + return ret; +} + +/** + * st_i2c_xfer() - Transfer a single I2C message + * @i2c_adap: Adapter pointer to the controller + * @msgs: Pointer to data to be written. + * @num: Number of messages to be executed + */ +static int st_i2c_xfer(struct i2c_adapter *i2c_adap, + struct i2c_msg msgs[], int num) +{ + struct st_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap); + int ret, i; + + i2c_dev->busy = true; + + ret = clk_prepare_enable(i2c_dev->clk); + if (ret) { + dev_err(i2c_dev->dev, "Failed to prepare_enable clock\n"); + return ret; + } + + pinctrl_pm_select_default_state(i2c_dev->dev); + + st_i2c_hw_config(i2c_dev); + + for (i = 0; (i < num) && !ret; i++) + ret = st_i2c_xfer_msg(i2c_dev, &msgs[i], i == 0, i == num - 1); + + pinctrl_pm_select_idle_state(i2c_dev->dev); + + clk_disable_unprepare(i2c_dev->clk); + + i2c_dev->busy = false; + + return (ret < 0) ? ret : i; +} + +#ifdef CONFIG_PM_SLEEP +static int st_i2c_suspend(struct device *dev) +{ + struct platform_device *pdev = + container_of(dev, struct platform_device, dev); + struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev); + + if (i2c_dev->busy) + return -EBUSY; + + pinctrl_pm_select_sleep_state(dev); + + return 0; +} + +static int st_i2c_resume(struct device *dev) +{ + pinctrl_pm_select_default_state(dev); + /* Go in idle state if available */ + pinctrl_pm_select_idle_state(dev); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(st_i2c_pm, st_i2c_suspend, st_i2c_resume); +#define ST_I2C_PM (&st_i2c_pm) +#else +#define ST_I2C_PM NULL +#endif + +static u32 st_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static struct i2c_algorithm st_i2c_algo = { + .master_xfer = st_i2c_xfer, + .functionality = st_i2c_func, +}; + +static int st_i2c_of_get_deglitch(struct device_node *np, + struct st_i2c_dev *i2c_dev) +{ + int ret; + + ret = of_property_read_u32(np, "st,i2c-min-scl-pulse-width-us", + &i2c_dev->scl_min_width_us); + if ((ret == -ENODATA) || (ret == -EOVERFLOW)) { + dev_err(i2c_dev->dev, "st,i2c-min-scl-pulse-width-us invalid\n"); + return ret; + } + + ret = of_property_read_u32(np, "st,i2c-min-sda-pulse-width-us", + &i2c_dev->sda_min_width_us); + if ((ret == -ENODATA) || (ret == -EOVERFLOW)) { + dev_err(i2c_dev->dev, "st,i2c-min-sda-pulse-width-us invalid\n"); + return ret; + } + + return 0; +} + +static int st_i2c_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct st_i2c_dev *i2c_dev; + struct resource *res; + u32 clk_rate; + struct i2c_adapter *adap; + int ret; + + i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL); + if (!i2c_dev) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + i2c_dev->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(i2c_dev->base)) + return PTR_ERR(i2c_dev->base); + + i2c_dev->irq = irq_of_parse_and_map(np, 0); + if (!i2c_dev->irq) { + dev_err(&pdev->dev, "IRQ missing or invalid\n"); + return -EINVAL; + } + + i2c_dev->clk = of_clk_get_by_name(np, "ssc"); + if (IS_ERR(i2c_dev->clk)) { + dev_err(&pdev->dev, "Unable to request clock\n"); + return PTR_ERR(i2c_dev->clk); + } + + i2c_dev->mode = I2C_MODE_STANDARD; + ret = of_property_read_u32(np, "clock-frequency", &clk_rate); + if ((!ret) && (clk_rate == 400000)) + i2c_dev->mode = I2C_MODE_FAST; + + i2c_dev->dev = &pdev->dev; + + ret = devm_request_threaded_irq(&pdev->dev, i2c_dev->irq, + NULL, st_i2c_isr_thread, + IRQF_ONESHOT, pdev->name, i2c_dev); + if (ret) { + dev_err(&pdev->dev, "Failed to request irq %i\n", i2c_dev->irq); + return ret; + } + + pinctrl_pm_select_default_state(i2c_dev->dev); + /* In case idle state available, select it */ + pinctrl_pm_select_idle_state(i2c_dev->dev); + + ret = st_i2c_of_get_deglitch(np, i2c_dev); + if (ret) + return ret; + + adap = &i2c_dev->adap; + i2c_set_adapdata(adap, i2c_dev); + snprintf(adap->name, sizeof(adap->name), "ST I2C(0x%x)", res->start); + adap->owner = THIS_MODULE; + adap->timeout = 2 * HZ; + adap->retries = 0; + adap->algo = &st_i2c_algo; + adap->dev.parent = &pdev->dev; + adap->dev.of_node = pdev->dev.of_node; + + init_completion(&i2c_dev->complete); + + ret = i2c_add_adapter(adap); + if (ret) { + dev_err(&pdev->dev, "Failed to add adapter\n"); + return ret; + } + + platform_set_drvdata(pdev, i2c_dev); + + dev_info(i2c_dev->dev, "%s initialized\n", adap->name); + + return 0; +} + +static int st_i2c_remove(struct platform_device *pdev) +{ + struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev); + + i2c_del_adapter(&i2c_dev->adap); + + return 0; +} + +static struct of_device_id st_i2c_match[] = { + { .compatible = "st,comms-ssc-i2c", }, + { .compatible = "st,comms-ssc4-i2c", }, + {}, +}; +MODULE_DEVICE_TABLE(of, st_i2c_match); + +static struct platform_driver st_i2c_driver = { + .driver = { + .name = "st-i2c", + .owner = THIS_MODULE, + .of_match_table = st_i2c_match, + .pm = ST_I2C_PM, + }, + .probe = st_i2c_probe, + .remove = st_i2c_remove, +}; + +module_platform_driver(st_i2c_driver); + +MODULE_AUTHOR("Maxime Coquelin <maxime.coquelin@st.com>"); +MODULE_DESCRIPTION("STMicroelectronics I2C driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c index 31395fa8121d..2c8a3e4f9008 100644 --- a/drivers/i2c/busses/i2c-wmt.c +++ b/drivers/i2c/busses/i2c-wmt.c @@ -349,6 +349,7 @@ static int wmt_i2c_reset_hardware(struct wmt_i2c_dev *i2c_dev) err = clk_set_rate(i2c_dev->clk, 20000000); if (err) { dev_err(i2c_dev->dev, "failed to set clock = 20Mhz\n"); + clk_disable_unprepare(i2c_dev->clk); return err; } diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c index 4c8b368d463b..fc2716afdfd9 100644 --- a/drivers/i2c/busses/i2c-xiic.c +++ b/drivers/i2c/busses/i2c-xiic.c @@ -40,6 +40,7 @@ #include <linux/i2c-xiic.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/of.h> #define DRIVER_NAME "xiic-i2c" @@ -702,7 +703,7 @@ static int xiic_i2c_probe(struct platform_device *pdev) if (irq < 0) goto resource_missing; - pdata = (struct xiic_i2c_platform_data *)dev_get_platdata(&pdev->dev); + pdata = dev_get_platdata(&pdev->dev); i2c = kzalloc(sizeof(*i2c), GFP_KERNEL); if (!i2c) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 75ba8608383e..d74c0b34248e 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -248,7 +248,7 @@ static int i2c_device_probe(struct device *dev) driver = to_i2c_driver(dev->driver); if (!driver->probe || !driver->id_table) return -ENODEV; - client->driver = driver; + if (!device_can_wakeup(&client->dev)) device_init_wakeup(&client->dev, client->flags & I2C_CLIENT_WAKE); @@ -257,7 +257,6 @@ static int i2c_device_probe(struct device *dev) acpi_dev_pm_attach(&client->dev, true); status = driver->probe(client, i2c_match_id(driver->id_table, client)); if (status) { - client->driver = NULL; i2c_set_clientdata(client, NULL); acpi_dev_pm_detach(&client->dev, true); } @@ -281,10 +280,8 @@ static int i2c_device_remove(struct device *dev) dev->driver = NULL; status = 0; } - if (status == 0) { - client->driver = NULL; + if (status == 0) i2c_set_clientdata(client, NULL); - } acpi_dev_pm_detach(&client->dev, true); return status; } @@ -618,6 +615,22 @@ void i2c_unlock_adapter(struct i2c_adapter *adapter) } EXPORT_SYMBOL_GPL(i2c_unlock_adapter); +static void i2c_dev_set_name(struct i2c_adapter *adap, + struct i2c_client *client) +{ + struct acpi_device *adev = ACPI_COMPANION(&client->dev); + + if (adev) { + dev_set_name(&client->dev, "i2c-%s", acpi_dev_name(adev)); + return; + } + + /* For 10-bit clients, add an arbitrary offset to avoid collisions */ + dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap), + client->addr | ((client->flags & I2C_CLIENT_TEN) + ? 0xa000 : 0)); +} + /** * i2c_new_device - instantiate an i2c device * @adap: the adapter managing the device @@ -674,12 +687,9 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) client->dev.bus = &i2c_bus_type; client->dev.type = &i2c_client_type; client->dev.of_node = info->of_node; - ACPI_HANDLE_SET(&client->dev, info->acpi_node.handle); + ACPI_COMPANION_SET(&client->dev, info->acpi_node.companion); - /* For 10-bit clients, add an arbitrary offset to avoid collisions */ - dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap), - client->addr | ((client->flags & I2C_CLIENT_TEN) - ? 0xa000 : 0)); + i2c_dev_set_name(adap, client); status = device_register(&client->dev); if (status) goto out_err; @@ -1103,7 +1113,7 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level, return AE_OK; memset(&info, 0, sizeof(info)); - info.acpi_node.handle = handle; + info.acpi_node.companion = adev; info.irq = -1; INIT_LIST_HEAD(&resource_list); @@ -1614,9 +1624,14 @@ static int i2c_cmd(struct device *dev, void *_arg) { struct i2c_client *client = i2c_verify_client(dev); struct i2c_cmd_arg *arg = _arg; + struct i2c_driver *driver; + + if (!client || !client->dev.driver) + return 0; - if (client && client->driver && client->driver->command) - client->driver->command(client, arg->cmd, arg->arg); + driver = to_i2c_driver(client->dev.driver); + if (driver->command) + driver->command(client, arg->cmd, arg->arg); return 0; } diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index c3ccdea3d180..80b47e8ce030 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -102,8 +102,8 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev) kfree(i2c_dev); } -static ssize_t show_adapter_name(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t name_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(dev->devt)); @@ -111,7 +111,13 @@ static ssize_t show_adapter_name(struct device *dev, return -ENODEV; return sprintf(buf, "%s\n", i2c_dev->adap->name); } -static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL); +static DEVICE_ATTR_RO(name); + +static struct attribute *i2c_attrs[] = { + &dev_attr_name.attr, + NULL, +}; +ATTRIBUTE_GROUPS(i2c); /* ------------------------------------------------------------------------- */ @@ -562,15 +568,10 @@ static int i2cdev_attach_adapter(struct device *dev, void *dummy) res = PTR_ERR(i2c_dev->dev); goto error; } - res = device_create_file(i2c_dev->dev, &dev_attr_name); - if (res) - goto error_destroy; pr_debug("i2c-dev: adapter [%s] registered as minor %d\n", adap->name, adap->nr); return 0; -error_destroy: - device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr)); error: return_i2c_dev(i2c_dev); return res; @@ -589,7 +590,6 @@ static int i2cdev_detach_adapter(struct device *dev, void *dummy) if (!i2c_dev) /* attach_adapter must have failed */ return 0; - device_remove_file(i2c_dev->dev, &dev_attr_name); return_i2c_dev(i2c_dev); device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr)); @@ -637,6 +637,7 @@ static int __init i2c_dev_init(void) res = PTR_ERR(i2c_dev_class); goto out_unreg_chrdev; } + i2c_dev_class->dev_groups = i2c_groups; /* Keep track of adapters which will be added or removed later */ res = bus_register_notifier(&i2c_bus_type, &i2cdev_notifier); diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c index 44d4c6071c15..c99b22987366 100644 --- a/drivers/i2c/i2c-smbus.c +++ b/drivers/i2c/i2c-smbus.c @@ -46,6 +46,7 @@ static int smbus_do_alert(struct device *dev, void *addrp) { struct i2c_client *client = i2c_verify_client(dev); struct alert_data *data = addrp; + struct i2c_driver *driver; if (!client || client->addr != data->addr) return 0; @@ -54,12 +55,13 @@ static int smbus_do_alert(struct device *dev, void *addrp) /* * Drivers should either disable alerts, or provide at least - * a minimal handler. Lock so client->driver won't change. + * a minimal handler. Lock so the driver won't change. */ device_lock(dev); - if (client->driver) { - if (client->driver->alert) - client->driver->alert(client, data->flag); + if (client->dev.driver) { + driver = to_i2c_driver(client->dev.driver); + if (driver->alert) + driver->alert(client, data->flag); else dev_warn(&client->dev, "no driver alert()!\n"); } else diff --git a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c index 928656e241dd..c58e093b6032 100644 --- a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c +++ b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c @@ -238,7 +238,7 @@ static struct platform_driver i2c_arbitrator_driver = { .driver = { .owner = THIS_MODULE, .name = "i2c-arb-gpio-challenge", - .of_match_table = of_match_ptr(i2c_arbitrator_of_match), + .of_match_table = i2c_arbitrator_of_match, }, }; diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index a764da777f08..8a8c56f4b026 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -30,15 +30,15 @@ static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val) int i; for (i = 0; i < mux->data.n_gpios; i++) - gpio_set_value(mux->gpio_base + mux->data.gpios[i], - val & (1 << i)); + gpio_set_value_cansleep(mux->gpio_base + mux->data.gpios[i], + val & (1 << i)); } static int i2c_mux_gpio_select(struct i2c_adapter *adap, void *data, u32 chan) { struct gpiomux *mux = data; - i2c_mux_gpio_set(mux, mux->data.values[chan]); + i2c_mux_gpio_set(mux, chan); return 0; } @@ -228,7 +228,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) unsigned int class = mux->data.classes ? mux->data.classes[i] : 0; mux->adap[i] = i2c_add_mux_adapter(parent, &pdev->dev, mux, nr, - i, class, + mux->data.values[i], class, i2c_mux_gpio_select, deselect); if (!mux->adap[i]) { ret = -ENODEV; @@ -283,7 +283,7 @@ static struct platform_driver i2c_mux_gpio_driver = { .driver = { .owner = THIS_MODULE, .name = "i2c-mux-gpio", - .of_match_table = of_match_ptr(i2c_mux_gpio_of_match), + .of_match_table = i2c_mux_gpio_of_match, }, }; diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c index 68a37157377d..d7978dc4ad0b 100644 --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c @@ -24,6 +24,7 @@ #include <linux/i2c-mux-pinctrl.h> #include <linux/platform_device.h> #include <linux/slab.h> +#include <linux/of.h> struct i2c_mux_pinctrl { struct device *dev; diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index 140c8ef50529..d9e1f7ccfe6f 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -7,6 +7,7 @@ * Copyright (C) 2006 Hannes Reinecke */ +#include <linux/acpi.h> #include <linux/ata.h> #include <linux/delay.h> #include <linux/device.h> @@ -19,8 +20,6 @@ #include <linux/dmi.h> #include <linux/module.h> -#include <acpi/acpi_bus.h> - #define REGS_PER_GTF 7 struct GTM_buffer { @@ -128,7 +127,7 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle, DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func); - dev_handle = DEVICE_ACPI_HANDLE(dev); + dev_handle = ACPI_HANDLE(dev); if (!dev_handle) { DEBPRINT("no acpi handle for device\n"); goto err; diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 3226ce98fb18..cbd4e9abc47e 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1,7 +1,7 @@ /* * intel_idle.c - native hardware idle loop for modern Intel processors * - * Copyright (c) 2010, Intel Corporation. + * Copyright (c) 2013, Intel Corporation. * Len Brown <len.brown@intel.com> * * This program is free software; you can redistribute it and/or modify it @@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[] __initdata = { { .enter = NULL } }; +static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = { + { + .name = "C1-AVN", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID, + .exit_latency = 2, + .target_residency = 2, + .enter = &intel_idle }, + { + .name = "C6-AVN", + .desc = "MWAIT 0x51", + .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 15, + .target_residency = 45, + .enter = &intel_idle }, +}; /** * intel_idle @@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = { .disable_promotion_to_c1e = true, }; +static const struct idle_cpu idle_cpu_avn = { + .state_table = avn_cstates, + .disable_promotion_to_c1e = true, +}; + #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } @@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { ICPU(0x3f, idle_cpu_hsw), ICPU(0x45, idle_cpu_hsw), ICPU(0x46, idle_cpu_hsw), + ICPU(0x4D, idle_cpu_avn), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids); diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index b84791f03a27..5ceda710f516 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -31,17 +31,6 @@ config INFINIBAND_USER_ACCESS libibverbs, libibcm and a hardware driver library from <http://www.openfabrics.org/git/>. -config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - bool "Experimental and unstable ABI for userspace access to flow steering verbs" - depends on INFINIBAND_USER_ACCESS - depends on STAGING - ---help--- - The final ABI for userspace access to flow steering verbs - has not been defined. To use the current ABI, *WHICH WILL - CHANGE IN THE FUTURE*, say Y here. - - If unsure, say N. - config INFINIBAND_USER_MEM bool depends on INFINIBAND_USER_ACCESS != n diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 784b97cb05b0..f2ef7ef0f36f 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -383,14 +383,11 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv) { unsigned long flags; int id; - static int next_id; idr_preload(GFP_KERNEL); spin_lock_irqsave(&cm.lock, flags); - id = idr_alloc(&cm.local_id_table, cm_id_priv, next_id, 0, GFP_NOWAIT); - if (id >= 0) - next_id = max(id + 1, 0); + id = idr_alloc_cyclic(&cm.local_id_table, cm_id_priv, 0, 0, GFP_NOWAIT); spin_unlock_irqrestore(&cm.lock, flags); idr_preload_end(); diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index d2172e71f985..8e49db690f33 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -328,28 +328,6 @@ static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey) return ret; } -static int find_gid_port(struct ib_device *device, union ib_gid *gid, u8 port_num) -{ - int i; - int err; - struct ib_port_attr props; - union ib_gid tmp; - - err = ib_query_port(device, port_num, &props); - if (err) - return err; - - for (i = 0; i < props.gid_tbl_len; ++i) { - err = ib_query_gid(device, port_num, i, &tmp); - if (err) - return err; - if (!memcmp(&tmp, gid, sizeof tmp)) - return 0; - } - - return -EADDRNOTAVAIL; -} - static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr) { dev_addr->dev_type = ARPHRD_INFINIBAND; @@ -371,13 +349,14 @@ static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_a return ret; } -static int cma_acquire_dev(struct rdma_id_private *id_priv) +static int cma_acquire_dev(struct rdma_id_private *id_priv, + struct rdma_id_private *listen_id_priv) { struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr; struct cma_device *cma_dev; union ib_gid gid, iboe_gid; int ret = -ENODEV; - u8 port; + u8 port, found_port; enum rdma_link_layer dev_ll = dev_addr->dev_type == ARPHRD_INFINIBAND ? IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET; @@ -389,17 +368,39 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv) iboe_addr_get_sgid(dev_addr, &iboe_gid); memcpy(&gid, dev_addr->src_dev_addr + rdma_addr_gid_offset(dev_addr), sizeof gid); + if (listen_id_priv && + rdma_port_get_link_layer(listen_id_priv->id.device, + listen_id_priv->id.port_num) == dev_ll) { + cma_dev = listen_id_priv->cma_dev; + port = listen_id_priv->id.port_num; + if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB && + rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET) + ret = ib_find_cached_gid(cma_dev->device, &iboe_gid, + &found_port, NULL); + else + ret = ib_find_cached_gid(cma_dev->device, &gid, + &found_port, NULL); + + if (!ret && (port == found_port)) { + id_priv->id.port_num = found_port; + goto out; + } + } list_for_each_entry(cma_dev, &dev_list, list) { for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port) { + if (listen_id_priv && + listen_id_priv->cma_dev == cma_dev && + listen_id_priv->id.port_num == port) + continue; if (rdma_port_get_link_layer(cma_dev->device, port) == dev_ll) { if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB && rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET) - ret = find_gid_port(cma_dev->device, &iboe_gid, port); + ret = ib_find_cached_gid(cma_dev->device, &iboe_gid, &found_port, NULL); else - ret = find_gid_port(cma_dev->device, &gid, port); + ret = ib_find_cached_gid(cma_dev->device, &gid, &found_port, NULL); - if (!ret) { - id_priv->id.port_num = port; + if (!ret && (port == found_port)) { + id_priv->id.port_num = found_port; goto out; } } @@ -1292,7 +1293,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) } mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING); - ret = cma_acquire_dev(conn_id); + ret = cma_acquire_dev(conn_id, listen_id); if (ret) goto err2; @@ -1451,7 +1452,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, { struct rdma_cm_id *new_cm_id; struct rdma_id_private *listen_id, *conn_id; - struct net_device *dev = NULL; struct rdma_cm_event event; int ret; struct ib_device_attr attr; @@ -1481,7 +1481,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, goto out; } - ret = cma_acquire_dev(conn_id); + ret = cma_acquire_dev(conn_id, listen_id); if (ret) { mutex_unlock(&conn_id->handler_mutex); rdma_destroy_id(new_cm_id); @@ -1529,8 +1529,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, cma_deref_id(conn_id); out: - if (dev) - dev_put(dev); mutex_unlock(&listen_id->handler_mutex); return ret; } @@ -2066,7 +2064,7 @@ static void addr_handler(int status, struct sockaddr *src_addr, goto out; if (!status && !id_priv->cma_dev) - status = cma_acquire_dev(id_priv); + status = cma_acquire_dev(id_priv, NULL); if (status) { if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED, @@ -2563,7 +2561,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr) if (ret) goto err1; - ret = cma_acquire_dev(id_priv); + ret = cma_acquire_dev(id_priv, NULL); if (ret) goto err1; } diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c index da06abde9e0d..a1e9cba84944 100644 --- a/drivers/infiniband/core/netlink.c +++ b/drivers/infiniband/core/netlink.c @@ -148,7 +148,7 @@ static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) list_for_each_entry(client, &client_list, list) { if (client->index == index) { if (op < 0 || op >= client->nops || - !client->cb_table[RDMA_NL_GET_OP(op)].dump) + !client->cb_table[op].dump) return -EINVAL; { diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index cde1e7b5b85d..faad2caf22b1 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -612,6 +612,7 @@ static ssize_t show_node_type(struct device *device, switch (dev->node_type) { case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); + case RDMA_NODE_USNIC: return sprintf(buf, "%d: usNIC\n", dev->node_type); case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index b0f189be543b..ab8b1c30b36b 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -57,7 +57,7 @@ MODULE_LICENSE("Dual BSD/GPL"); static unsigned int max_backlog = 1024; static struct ctl_table_header *ucma_ctl_table_hdr; -static ctl_table ucma_ctl_table[] = { +static struct ctl_table ucma_ctl_table[] = { { .procname = "max_backlog", .data = &max_backlog, @@ -271,7 +271,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id, goto out; } ctx->backlog--; - } else if (!ctx->uid) { + } else if (!ctx->uid || ctx->cm_id != cm_id) { /* * We ignore events for new connections until userspace has set * their context. This can only happen if an error occurs on a diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index d8f9c6c272d7..bdc842e9faef 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -47,6 +47,14 @@ #include <rdma/ib_umem.h> #include <rdma/ib_user_verbs.h> +#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ + do { \ + (udata)->inbuf = (void __user *) (ibuf); \ + (udata)->outbuf = (void __user *) (obuf); \ + (udata)->inlen = (ilen); \ + (udata)->outlen = (olen); \ + } while (0) + /* * Our lifetime rules for these structs are the following: * @@ -178,6 +186,22 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler, struct ib_event *event); void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd); +struct ib_uverbs_flow_spec { + union { + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; + struct ib_uverbs_flow_spec_eth eth; + struct ib_uverbs_flow_spec_ipv4 ipv4; + struct ib_uverbs_flow_spec_tcp_udp tcp_udp; + }; +}; + #define IB_UVERBS_DECLARE_CMD(name) \ ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ const char __user *buf, int in_len, \ @@ -217,9 +241,13 @@ IB_UVERBS_DECLARE_CMD(destroy_srq); IB_UVERBS_DECLARE_CMD(create_xsrq); IB_UVERBS_DECLARE_CMD(open_xrcd); IB_UVERBS_DECLARE_CMD(close_xrcd); -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -IB_UVERBS_DECLARE_CMD(create_flow); -IB_UVERBS_DECLARE_CMD(destroy_flow); -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + +#define IB_UVERBS_DECLARE_EX_CMD(name) \ + int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \ + struct ib_udata *ucore, \ + struct ib_udata *uhw) + +IB_UVERBS_DECLARE_EX_CMD(create_flow); +IB_UVERBS_DECLARE_EX_CMD(destroy_flow); #endif /* UVERBS_H */ diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 2f0f01b70e3b..65f6e7dc380c 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -54,17 +54,7 @@ static struct uverbs_lock_class qp_lock_class = { .name = "QP-uobj" }; static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" }; static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" }; static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" }; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" }; -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ - -#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ - do { \ - (udata)->inbuf = (void __user *) (ibuf); \ - (udata)->outbuf = (void __user *) (obuf); \ - (udata)->inlen = (ilen); \ - (udata)->outlen = (olen); \ - } while (0) /* * The ib_uobject locking scheme is as follows: @@ -939,13 +929,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file, if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK)) return -EINVAL; - /* - * Local write permission is required if remote write or - * remote atomic permission is also requested. - */ - if (cmd.access_flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) && - !(cmd.access_flags & IB_ACCESS_LOCAL_WRITE)) - return -EINVAL; + ret = ib_check_mr_access(cmd.access_flags); + if (ret) + return ret; uobj = kmalloc(sizeof *uobj, GFP_KERNEL); if (!uobj) @@ -2128,6 +2114,9 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file, } next->wr.ud.remote_qpn = user_wr->wr.ud.remote_qpn; next->wr.ud.remote_qkey = user_wr->wr.ud.remote_qkey; + if (next->opcode == IB_WR_SEND_WITH_IMM) + next->ex.imm_data = + (__be32 __force) user_wr->ex.imm_data; } else { switch (next->opcode) { case IB_WR_RDMA_WRITE_WITH_IMM: @@ -2601,8 +2590,7 @@ out_put: return ret ? ret : in_len; } -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING -static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec, +static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec, union ib_flow_spec *ib_spec) { ib_spec->type = kern_spec->type; @@ -2642,28 +2630,31 @@ static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec, return 0; } -ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) +int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) { struct ib_uverbs_create_flow cmd; struct ib_uverbs_create_flow_resp resp; struct ib_uobject *uobj; struct ib_flow *flow_id; - struct ib_kern_flow_attr *kern_flow_attr; + struct ib_uverbs_flow_attr *kern_flow_attr; struct ib_flow_attr *flow_attr; struct ib_qp *qp; int err = 0; void *kern_spec; void *ib_spec; int i; - int kern_attr_size; - if (out_len < sizeof(resp)) + if (ucore->outlen < sizeof(resp)) return -ENOSPC; - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + if (err) + return err; + + ucore->inbuf += sizeof(cmd); + ucore->inlen -= sizeof(cmd); if (cmd.comp_mask) return -EINVAL; @@ -2672,32 +2663,27 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, !capable(CAP_NET_ADMIN)) || !capable(CAP_NET_RAW)) return -EPERM; - if (cmd.flow_attr.num_of_specs < 0 || - cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) + if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS) return -EINVAL; - kern_attr_size = cmd.flow_attr.size - sizeof(cmd) - - sizeof(struct ib_uverbs_cmd_hdr_ex); - - if (cmd.flow_attr.size < 0 || cmd.flow_attr.size > in_len || - kern_attr_size < 0 || kern_attr_size > - (cmd.flow_attr.num_of_specs * sizeof(struct ib_kern_spec))) + if (cmd.flow_attr.size > ucore->inlen || + cmd.flow_attr.size > + (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec))) return -EINVAL; if (cmd.flow_attr.num_of_specs) { - kern_flow_attr = kmalloc(cmd.flow_attr.size, GFP_KERNEL); + kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size, + GFP_KERNEL); if (!kern_flow_attr) return -ENOMEM; memcpy(kern_flow_attr, &cmd.flow_attr, sizeof(*kern_flow_attr)); - if (copy_from_user(kern_flow_attr + 1, buf + sizeof(cmd), - kern_attr_size)) { - err = -EFAULT; + err = ib_copy_from_udata(kern_flow_attr + 1, ucore, + cmd.flow_attr.size); + if (err) goto err_free_attr; - } } else { kern_flow_attr = &cmd.flow_attr; - kern_attr_size = sizeof(cmd.flow_attr); } uobj = kmalloc(sizeof(*uobj), GFP_KERNEL); @@ -2714,7 +2700,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, goto err_uobj; } - flow_attr = kmalloc(cmd.flow_attr.size, GFP_KERNEL); + flow_attr = kmalloc(sizeof(*flow_attr) + cmd.flow_attr.size, GFP_KERNEL); if (!flow_attr) { err = -ENOMEM; goto err_put; @@ -2729,19 +2715,22 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, kern_spec = kern_flow_attr + 1; ib_spec = flow_attr + 1; - for (i = 0; i < flow_attr->num_of_specs && kern_attr_size > 0; i++) { + for (i = 0; i < flow_attr->num_of_specs && + cmd.flow_attr.size > offsetof(struct ib_uverbs_flow_spec, reserved) && + cmd.flow_attr.size >= + ((struct ib_uverbs_flow_spec *)kern_spec)->size; i++) { err = kern_spec_to_ib_spec(kern_spec, ib_spec); if (err) goto err_free; flow_attr->size += ((union ib_flow_spec *) ib_spec)->size; - kern_attr_size -= ((struct ib_kern_spec *) kern_spec)->size; - kern_spec += ((struct ib_kern_spec *) kern_spec)->size; + cmd.flow_attr.size -= ((struct ib_uverbs_flow_spec *)kern_spec)->size; + kern_spec += ((struct ib_uverbs_flow_spec *) kern_spec)->size; ib_spec += ((union ib_flow_spec *) ib_spec)->size; } - if (kern_attr_size) { - pr_warn("create flow failed, %d bytes left from uverb cmd\n", - kern_attr_size); + if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) { + pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n", + i, cmd.flow_attr.size); goto err_free; } flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER); @@ -2760,11 +2749,10 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, memset(&resp, 0, sizeof(resp)); resp.flow_handle = uobj->id; - if (copy_to_user((void __user *)(unsigned long) cmd.response, - &resp, sizeof(resp))) { - err = -EFAULT; + err = ib_copy_to_udata(ucore, + &resp, sizeof(resp)); + if (err) goto err_copy; - } put_qp_read(qp); mutex_lock(&file->mutex); @@ -2777,7 +2765,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file, kfree(flow_attr); if (cmd.flow_attr.num_of_specs) kfree(kern_flow_attr); - return in_len; + return 0; err_copy: idr_remove_uobj(&ib_uverbs_rule_idr, uobj); destroy_flow: @@ -2794,16 +2782,18 @@ err_free_attr: return err; } -ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file, - const char __user *buf, int in_len, - int out_len) { +int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) +{ struct ib_uverbs_destroy_flow cmd; struct ib_flow *flow_id; struct ib_uobject *uobj; int ret; - if (copy_from_user(&cmd, buf, sizeof(cmd))) - return -EFAULT; + ret = ib_copy_from_udata(&cmd, ucore, sizeof(cmd)); + if (ret) + return ret; uobj = idr_write_uobj(&ib_uverbs_rule_idr, cmd.flow_handle, file->ucontext); @@ -2825,9 +2815,8 @@ ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file, put_uobj(uobj); - return ret ? ret : in_len; + return ret; } -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, struct ib_uverbs_create_xsrq *cmd, diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 2df31f68ea09..34386943ebcf 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -115,10 +115,13 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, [IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd, [IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq, [IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp, -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - [IB_USER_VERBS_CMD_CREATE_FLOW] = ib_uverbs_create_flow, - [IB_USER_VERBS_CMD_DESTROY_FLOW] = ib_uverbs_destroy_flow -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ +}; + +static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, + struct ib_udata *ucore, + struct ib_udata *uhw) = { + [IB_USER_VERBS_EX_CMD_CREATE_FLOW] = ib_uverbs_ex_create_flow, + [IB_USER_VERBS_EX_CMD_DESTROY_FLOW] = ib_uverbs_ex_destroy_flow }; static void ib_uverbs_add_one(struct ib_device *device); @@ -589,6 +592,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, { struct ib_uverbs_file *file = filp->private_data; struct ib_uverbs_cmd_hdr hdr; + __u32 flags; if (count < sizeof hdr) return -EINVAL; @@ -596,45 +600,105 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (copy_from_user(&hdr, buf, sizeof hdr)) return -EFAULT; - if (hdr.command >= ARRAY_SIZE(uverbs_cmd_table) || - !uverbs_cmd_table[hdr.command]) - return -EINVAL; + flags = (hdr.command & + IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT; - if (!file->ucontext && - hdr.command != IB_USER_VERBS_CMD_GET_CONTEXT) - return -EINVAL; + if (!flags) { + __u32 command; - if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command))) - return -ENOSYS; + if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK | + IB_USER_VERBS_CMD_COMMAND_MASK)) + return -EINVAL; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) { - struct ib_uverbs_cmd_hdr_ex hdr_ex; + command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK; - if (copy_from_user(&hdr_ex, buf, sizeof(hdr_ex))) - return -EFAULT; + if (command >= ARRAY_SIZE(uverbs_cmd_table) || + !uverbs_cmd_table[command]) + return -EINVAL; - if (((hdr_ex.in_words + hdr_ex.provider_in_words) * 4) != count) + if (!file->ucontext && + command != IB_USER_VERBS_CMD_GET_CONTEXT) return -EINVAL; - return uverbs_cmd_table[hdr.command](file, - buf + sizeof(hdr_ex), - (hdr_ex.in_words + - hdr_ex.provider_in_words) * 4, - (hdr_ex.out_words + - hdr_ex.provider_out_words) * 4); - } else { -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << command))) + return -ENOSYS; + if (hdr.in_words * 4 != count) return -EINVAL; - return uverbs_cmd_table[hdr.command](file, - buf + sizeof(hdr), - hdr.in_words * 4, - hdr.out_words * 4); -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING + return uverbs_cmd_table[command](file, + buf + sizeof(hdr), + hdr.in_words * 4, + hdr.out_words * 4); + + } else if (flags == IB_USER_VERBS_CMD_FLAG_EXTENDED) { + __u32 command; + + struct ib_uverbs_ex_cmd_hdr ex_hdr; + struct ib_udata ucore; + struct ib_udata uhw; + int err; + size_t written_count = count; + + if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK | + IB_USER_VERBS_CMD_COMMAND_MASK)) + return -EINVAL; + + command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK; + + if (command >= ARRAY_SIZE(uverbs_ex_cmd_table) || + !uverbs_ex_cmd_table[command]) + return -ENOSYS; + + if (!file->ucontext) + return -EINVAL; + + if (!(file->device->ib_dev->uverbs_ex_cmd_mask & (1ull << command))) + return -ENOSYS; + + if (count < (sizeof(hdr) + sizeof(ex_hdr))) + return -EINVAL; + + if (copy_from_user(&ex_hdr, buf + sizeof(hdr), sizeof(ex_hdr))) + return -EFAULT; + + count -= sizeof(hdr) + sizeof(ex_hdr); + buf += sizeof(hdr) + sizeof(ex_hdr); + + if ((hdr.in_words + ex_hdr.provider_in_words) * 8 != count) + return -EINVAL; + + if (ex_hdr.response) { + if (!hdr.out_words && !ex_hdr.provider_out_words) + return -EINVAL; + } else { + if (hdr.out_words || ex_hdr.provider_out_words) + return -EINVAL; + } + + INIT_UDATA(&ucore, + (hdr.in_words) ? buf : 0, + (unsigned long)ex_hdr.response, + hdr.in_words * 8, + hdr.out_words * 8); + + INIT_UDATA(&uhw, + (ex_hdr.provider_in_words) ? buf + ucore.inlen : 0, + (ex_hdr.provider_out_words) ? (unsigned long)ex_hdr.response + ucore.outlen : 0, + ex_hdr.provider_in_words * 8, + ex_hdr.provider_out_words * 8); + + err = uverbs_ex_cmd_table[command](file, + &ucore, + &uhw); + + if (err) + return err; + + return written_count; } -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + + return -ENOSYS; } static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index a321df28bab2..d4f6ddf72ffa 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -114,6 +114,8 @@ rdma_node_get_transport(enum rdma_node_type node_type) return RDMA_TRANSPORT_IB; case RDMA_NODE_RNIC: return RDMA_TRANSPORT_IWARP; + case RDMA_NODE_USNIC: + return RDMA_TRANSPORT_USNIC; default: BUG(); return 0; @@ -130,6 +132,7 @@ enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_ case RDMA_TRANSPORT_IB: return IB_LINK_LAYER_INFINIBAND; case RDMA_TRANSPORT_IWARP: + case RDMA_TRANSPORT_USNIC: return IB_LINK_LAYER_ETHERNET; default: return IB_LINK_LAYER_UNSPECIFIED; @@ -958,6 +961,11 @@ EXPORT_SYMBOL(ib_resize_cq); struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags) { struct ib_mr *mr; + int err; + + err = ib_check_mr_access(mr_access_flags); + if (err) + return ERR_PTR(err); mr = pd->device->get_dma_mr(pd, mr_access_flags); @@ -980,6 +988,11 @@ struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, u64 *iova_start) { struct ib_mr *mr; + int err; + + err = ib_check_mr_access(mr_access_flags); + if (err) + return ERR_PTR(err); if (!pd->device->reg_phys_mr) return ERR_PTR(-ENOSYS); @@ -1010,6 +1023,10 @@ int ib_rereg_phys_mr(struct ib_mr *mr, struct ib_pd *old_pd; int ret; + ret = ib_check_mr_access(mr_access_flags); + if (ret) + return ret; + if (!mr->device->rereg_phys_mr) return -ENOSYS; diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c index 33d2cc6ab562..4a033853312e 100644 --- a/drivers/infiniband/hw/cxgb4/device.c +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -602,10 +602,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev) rdev->lldi.vr->qp.size, rdev->lldi.vr->cq.start, rdev->lldi.vr->cq.size); - PDBG("udb len 0x%x udb base %p db_reg %p gts_reg %p qpshift %lu " + PDBG("udb len 0x%x udb base %llx db_reg %p gts_reg %p qpshift %lu " "qpmask 0x%x cqshift %lu cqmask 0x%x\n", (unsigned)pci_resource_len(rdev->lldi.pdev, 2), - (void *)(unsigned long)pci_resource_start(rdev->lldi.pdev, 2), + (u64)pci_resource_start(rdev->lldi.pdev, 2), rdev->lldi.db_reg, rdev->lldi.gts_reg, rdev->qpshift, rdev->qpmask, diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c index f5cb13b21445..cc04b7ba3488 100644 --- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c @@ -280,9 +280,7 @@ static int ipath_user_sdma_pin_pages(const struct ipath_devdata *dd, int j; int ret; - ret = get_user_pages(current, current->mm, addr, - npages, 0, 1, pages, NULL); - + ret = get_user_pages_fast(addr, npages, 0, pages); if (ret != npages) { int i; @@ -811,10 +809,7 @@ int ipath_user_sdma_writev(struct ipath_devdata *dd, while (dim) { const int mxp = 8; - down_write(¤t->mm->mmap_sem); ret = ipath_user_sdma_queue_pkts(dd, pq, &list, iov, dim, mxp); - up_write(¤t->mm->mmap_sem); - if (ret <= 0) goto done_unlock; else { diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index d5e60f44ba5a..66dbf8062374 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -324,7 +324,7 @@ static int mlx4_ib_get_outstanding_cqes(struct mlx4_ib_cq *cq) u32 i; i = cq->mcq.cons_index; - while (get_sw_cqe(cq, i & cq->ibcq.cqe)) + while (get_sw_cqe(cq, i)) ++i; return i - cq->mcq.cons_index; @@ -365,7 +365,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) mutex_lock(&cq->resize_mutex); - if (entries < 1 || entries > dev->dev->caps.max_cqes) { + if (entries < 1) { err = -EINVAL; goto out; } @@ -376,6 +376,11 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) goto out; } + if (entries > dev->dev->caps.max_cqes) { + err = -EINVAL; + goto out; + } + if (ibcq->uobject) { err = mlx4_alloc_resize_umem(dev, cq, entries, udata); if (err) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 6a0a0d29660d..1958c5ca792a 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1685,11 +1685,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.create_flow = mlx4_ib_create_flow; ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; -#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING - ibdev->ib_dev.uverbs_cmd_mask |= - (1ull << IB_USER_VERBS_CMD_CREATE_FLOW) | - (1ull << IB_USER_VERBS_CMD_DESTROY_FLOW); -#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ + ibdev->ib_dev.uverbs_ex_cmd_mask |= + (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) | + (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW); } mlx4_ib_alloc_eqs(dev, ibdev); diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 344ab03948a3..b72627429745 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -556,7 +556,7 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, goto err_db; } mlx5_ib_populate_pas(dev, cq->buf.umem, page_shift, (*cqb)->pas, 0); - (*cqb)->ctx.log_pg_sz = page_shift - PAGE_SHIFT; + (*cqb)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT; *index = to_mucontext(context)->uuari.uars[0].index; @@ -620,7 +620,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq, } mlx5_fill_page_array(&cq->buf.buf, (*cqb)->pas); - (*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - PAGE_SHIFT; + (*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT; *index = dev->mdev.priv.uuari.uars[0].index; return 0; @@ -653,8 +653,11 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries, int eqn; int err; + if (entries < 0) + return ERR_PTR(-EINVAL); + entries = roundup_pow_of_two(entries + 1); - if (entries < 1 || entries > dev->mdev.caps.max_cqes) + if (entries > dev->mdev.caps.max_cqes) return ERR_PTR(-EINVAL); cq = kzalloc(sizeof(*cq), GFP_KERNEL); @@ -747,17 +750,9 @@ int mlx5_ib_destroy_cq(struct ib_cq *cq) return 0; } -static int is_equal_rsn(struct mlx5_cqe64 *cqe64, struct mlx5_ib_srq *srq, - u32 rsn) +static int is_equal_rsn(struct mlx5_cqe64 *cqe64, u32 rsn) { - u32 lrsn; - - if (srq) - lrsn = be32_to_cpu(cqe64->srqn) & 0xffffff; - else - lrsn = be32_to_cpu(cqe64->sop_drop_qpn) & 0xffffff; - - return rsn == lrsn; + return rsn == (ntohl(cqe64->sop_drop_qpn) & 0xffffff); } void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 rsn, struct mlx5_ib_srq *srq) @@ -787,8 +782,8 @@ void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 rsn, struct mlx5_ib_srq *srq) while ((int) --prod_index - (int) cq->mcq.cons_index >= 0) { cqe = get_cqe(cq, prod_index & cq->ibcq.cqe); cqe64 = (cq->mcq.cqe_sz == 64) ? cqe : cqe + 64; - if (is_equal_rsn(cqe64, srq, rsn)) { - if (srq) + if (is_equal_rsn(cqe64, rsn)) { + if (srq && (ntohl(cqe64->srqn) & 0xffffff)) mlx5_ib_free_srq_wqe(srq, be16_to_cpu(cqe64->wqe_counter)); ++nfreed; } else if (nfreed) { diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index b1a6cb3a2809..306534109627 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -745,7 +745,8 @@ static int alloc_pa_mkey(struct mlx5_ib_dev *dev, u32 *key, u32 pdn) seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); seg->start_addr = 0; - err = mlx5_core_create_mkey(&dev->mdev, &mr, in, sizeof(*in)); + err = mlx5_core_create_mkey(&dev->mdev, &mr, in, sizeof(*in), + NULL, NULL, NULL); if (err) { mlx5_ib_warn(dev, "failed to create mkey, %d\n", err); goto err_in; diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 836be9157242..4c134d93d4fc 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -262,6 +262,9 @@ struct mlx5_ib_mr { int npages; struct completion done; enum ib_wc_status status; + struct mlx5_ib_dev *dev; + struct mlx5_create_mkey_mbox_out out; + unsigned long start; }; struct mlx5_ib_fast_reg_page_list { @@ -323,6 +326,7 @@ struct mlx5_cache_ent { struct mlx5_ib_dev *dev; struct work_struct work; struct delayed_work dwork; + int pending; }; struct mlx5_mr_cache { @@ -358,6 +362,8 @@ struct mlx5_ib_dev { spinlock_t mr_lock; struct mlx5_ib_resources devr; struct mlx5_mr_cache cache; + struct timer_list delay_timer; + int fill_delay; }; static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 3453580b1eb2..039c3e40fcb4 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -35,11 +35,12 @@ #include <linux/random.h> #include <linux/debugfs.h> #include <linux/export.h> +#include <linux/delay.h> #include <rdma/ib_umem.h> #include "mlx5_ib.h" enum { - DEF_CACHE_SIZE = 10, + MAX_PENDING_REG_MR = 8, }; enum { @@ -63,6 +64,51 @@ static int order2idx(struct mlx5_ib_dev *dev, int order) return order - cache->ent[0].order; } +static void reg_mr_callback(int status, void *context) +{ + struct mlx5_ib_mr *mr = context; + struct mlx5_ib_dev *dev = mr->dev; + struct mlx5_mr_cache *cache = &dev->cache; + int c = order2idx(dev, mr->order); + struct mlx5_cache_ent *ent = &cache->ent[c]; + u8 key; + unsigned long flags; + + spin_lock_irqsave(&ent->lock, flags); + ent->pending--; + spin_unlock_irqrestore(&ent->lock, flags); + if (status) { + mlx5_ib_warn(dev, "async reg mr failed. status %d\n", status); + kfree(mr); + dev->fill_delay = 1; + mod_timer(&dev->delay_timer, jiffies + HZ); + return; + } + + if (mr->out.hdr.status) { + mlx5_ib_warn(dev, "failed - status %d, syndorme 0x%x\n", + mr->out.hdr.status, + be32_to_cpu(mr->out.hdr.syndrome)); + kfree(mr); + dev->fill_delay = 1; + mod_timer(&dev->delay_timer, jiffies + HZ); + return; + } + + spin_lock_irqsave(&dev->mdev.priv.mkey_lock, flags); + key = dev->mdev.priv.mkey_key++; + spin_unlock_irqrestore(&dev->mdev.priv.mkey_lock, flags); + mr->mmr.key = mlx5_idx_to_mkey(be32_to_cpu(mr->out.mkey) & 0xffffff) | key; + + cache->last_add = jiffies; + + spin_lock_irqsave(&ent->lock, flags); + list_add_tail(&mr->list, &ent->head); + ent->cur++; + ent->size++; + spin_unlock_irqrestore(&ent->lock, flags); +} + static int add_keys(struct mlx5_ib_dev *dev, int c, int num) { struct mlx5_mr_cache *cache = &dev->cache; @@ -78,36 +124,39 @@ static int add_keys(struct mlx5_ib_dev *dev, int c, int num) return -ENOMEM; for (i = 0; i < num; i++) { + if (ent->pending >= MAX_PENDING_REG_MR) { + err = -EAGAIN; + break; + } + mr = kzalloc(sizeof(*mr), GFP_KERNEL); if (!mr) { err = -ENOMEM; - goto out; + break; } mr->order = ent->order; mr->umred = 1; + mr->dev = dev; in->seg.status = 1 << 6; in->seg.xlt_oct_size = cpu_to_be32((npages + 1) / 2); in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); in->seg.flags = MLX5_ACCESS_MODE_MTT | MLX5_PERM_UMR_EN; in->seg.log2_page_size = 12; + spin_lock_irq(&ent->lock); + ent->pending++; + spin_unlock_irq(&ent->lock); + mr->start = jiffies; err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, - sizeof(*in)); + sizeof(*in), reg_mr_callback, + mr, &mr->out); if (err) { mlx5_ib_warn(dev, "create mkey failed %d\n", err); kfree(mr); - goto out; + break; } - cache->last_add = jiffies; - - spin_lock(&ent->lock); - list_add_tail(&mr->list, &ent->head); - ent->cur++; - ent->size++; - spin_unlock(&ent->lock); } -out: kfree(in); return err; } @@ -121,16 +170,16 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) int i; for (i = 0; i < num; i++) { - spin_lock(&ent->lock); + spin_lock_irq(&ent->lock); if (list_empty(&ent->head)) { - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); return; } mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list); list_del(&mr->list); ent->cur--; ent->size--; - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr); if (err) mlx5_ib_warn(dev, "failed destroy mkey\n"); @@ -162,9 +211,13 @@ static ssize_t size_write(struct file *filp, const char __user *buf, return -EINVAL; if (var > ent->size) { - err = add_keys(dev, c, var - ent->size); - if (err) - return err; + do { + err = add_keys(dev, c, var - ent->size); + if (err && err != -EAGAIN) + return err; + + usleep_range(3000, 5000); + } while (err); } else if (var < ent->size) { remove_keys(dev, c, ent->size - var); } @@ -280,23 +333,37 @@ static void __cache_work_func(struct mlx5_cache_ent *ent) struct mlx5_ib_dev *dev = ent->dev; struct mlx5_mr_cache *cache = &dev->cache; int i = order2idx(dev, ent->order); + int err; if (cache->stopped) return; ent = &dev->cache.ent[i]; - if (ent->cur < 2 * ent->limit) { - add_keys(dev, i, 1); - if (ent->cur < 2 * ent->limit) - queue_work(cache->wq, &ent->work); + if (ent->cur < 2 * ent->limit && !dev->fill_delay) { + err = add_keys(dev, i, 1); + if (ent->cur < 2 * ent->limit) { + if (err == -EAGAIN) { + mlx5_ib_dbg(dev, "returned eagain, order %d\n", + i + 2); + queue_delayed_work(cache->wq, &ent->dwork, + msecs_to_jiffies(3)); + } else if (err) { + mlx5_ib_warn(dev, "command failed order %d, err %d\n", + i + 2, err); + queue_delayed_work(cache->wq, &ent->dwork, + msecs_to_jiffies(1000)); + } else { + queue_work(cache->wq, &ent->work); + } + } } else if (ent->cur > 2 * ent->limit) { if (!someone_adding(cache) && - time_after(jiffies, cache->last_add + 60 * HZ)) { + time_after(jiffies, cache->last_add + 300 * HZ)) { remove_keys(dev, i, 1); if (ent->cur > ent->limit) queue_work(cache->wq, &ent->work); } else { - queue_delayed_work(cache->wq, &ent->dwork, 60 * HZ); + queue_delayed_work(cache->wq, &ent->dwork, 300 * HZ); } } } @@ -336,18 +403,18 @@ static struct mlx5_ib_mr *alloc_cached_mr(struct mlx5_ib_dev *dev, int order) mlx5_ib_dbg(dev, "order %d, cache index %d\n", ent->order, i); - spin_lock(&ent->lock); + spin_lock_irq(&ent->lock); if (!list_empty(&ent->head)) { mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list); list_del(&mr->list); ent->cur--; - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); if (ent->cur < ent->limit) queue_work(cache->wq, &ent->work); break; } - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); queue_work(cache->wq, &ent->work); @@ -374,12 +441,12 @@ static void free_cached_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) return; } ent = &cache->ent[c]; - spin_lock(&ent->lock); + spin_lock_irq(&ent->lock); list_add_tail(&mr->list, &ent->head); ent->cur++; if (ent->cur > 2 * ent->limit) shrink = 1; - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); if (shrink) queue_work(cache->wq, &ent->work); @@ -394,16 +461,16 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c) cancel_delayed_work(&ent->dwork); while (1) { - spin_lock(&ent->lock); + spin_lock_irq(&ent->lock); if (list_empty(&ent->head)) { - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); return; } mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list); list_del(&mr->list); ent->cur--; ent->size--; - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr); if (err) mlx5_ib_warn(dev, "failed destroy mkey\n"); @@ -464,12 +531,18 @@ static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev) debugfs_remove_recursive(dev->cache.root); } +static void delay_time_func(unsigned long ctx) +{ + struct mlx5_ib_dev *dev = (struct mlx5_ib_dev *)ctx; + + dev->fill_delay = 0; +} + int mlx5_mr_cache_init(struct mlx5_ib_dev *dev) { struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent; int limit; - int size; int err; int i; @@ -479,6 +552,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev) return -ENOMEM; } + setup_timer(&dev->delay_timer, delay_time_func, (unsigned long)dev); for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) { INIT_LIST_HEAD(&cache->ent[i].head); spin_lock_init(&cache->ent[i].lock); @@ -489,13 +563,11 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev) ent->order = i + 2; ent->dev = dev; - if (dev->mdev.profile->mask & MLX5_PROF_MASK_MR_CACHE) { - size = dev->mdev.profile->mr_cache[i].size; + if (dev->mdev.profile->mask & MLX5_PROF_MASK_MR_CACHE) limit = dev->mdev.profile->mr_cache[i].limit; - } else { - size = DEF_CACHE_SIZE; + else limit = 0; - } + INIT_WORK(&ent->work, cache_work_func); INIT_DELAYED_WORK(&ent->dwork, delayed_cache_work_func); ent->limit = limit; @@ -522,6 +594,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev) clean_keys(dev, i); destroy_workqueue(dev->cache.wq); + del_timer_sync(&dev->delay_timer); return 0; } @@ -551,7 +624,8 @@ struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc) seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); seg->start_addr = 0; - err = mlx5_core_create_mkey(mdev, &mr->mmr, in, sizeof(*in)); + err = mlx5_core_create_mkey(mdev, &mr->mmr, in, sizeof(*in), NULL, NULL, + NULL); if (err) goto err_in; @@ -660,14 +734,14 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, int err; int i; - for (i = 0; i < 10; i++) { + for (i = 0; i < 1; i++) { mr = alloc_cached_mr(dev, order); if (mr) break; err = add_keys(dev, order2idx(dev, order), 1); - if (err) { - mlx5_ib_warn(dev, "add_keys failed\n"); + if (err && err != -EAGAIN) { + mlx5_ib_warn(dev, "add_keys failed, err %d\n", err); break; } } @@ -759,8 +833,10 @@ static struct mlx5_ib_mr *reg_create(struct ib_pd *pd, u64 virt_addr, in->seg.xlt_oct_size = cpu_to_be32(get_octo_len(virt_addr, length, 1 << page_shift)); in->seg.log2_page_size = page_shift; in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); - in->xlat_oct_act_size = cpu_to_be32(get_octo_len(virt_addr, length, 1 << page_shift)); - err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, inlen); + in->xlat_oct_act_size = cpu_to_be32(get_octo_len(virt_addr, length, + 1 << page_shift)); + err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, inlen, NULL, + NULL, NULL); if (err) { mlx5_ib_warn(dev, "create mkey failed\n"); goto err_2; @@ -944,7 +1020,8 @@ struct ib_mr *mlx5_ib_alloc_fast_reg_mr(struct ib_pd *pd, * TBD not needed - issue 197292 */ in->seg.log2_page_size = PAGE_SHIFT; - err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in)); + err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in), NULL, + NULL, NULL); kfree(in); if (err) goto err_free; diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 5659ea880741..7c6b4ba49bec 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, } mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); (*in)->ctx.log_pg_sz_remote_qpn = - cpu_to_be32((page_shift - PAGE_SHIFT) << 24); + cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); (*in)->ctx.params2 = cpu_to_be32(offset << 6); (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); @@ -648,7 +648,8 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, goto err_buf; } (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); - (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - PAGE_SHIFT) << 24); + (*in)->ctx.log_pg_sz_remote_qpn = + cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24); /* Set "fast registration enabled" for all kernel QPs */ (*in)->ctx.params1 |= cpu_to_be32(1 << 11); (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); @@ -1317,9 +1318,11 @@ static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_Q MLX5_QP_OPTPAR_RAE | MLX5_QP_OPTPAR_RWE | MLX5_QP_OPTPAR_RNR_TIMEOUT | - MLX5_QP_OPTPAR_PM_STATE, + MLX5_QP_OPTPAR_PM_STATE | + MLX5_QP_OPTPAR_ALT_ADDR_PATH, [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE | - MLX5_QP_OPTPAR_PM_STATE, + MLX5_QP_OPTPAR_PM_STATE | + MLX5_QP_OPTPAR_ALT_ADDR_PATH, [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY | MLX5_QP_OPTPAR_SRQN | MLX5_QP_OPTPAR_CQN_RCV, @@ -1550,7 +1553,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp, mlx5_cur = to_mlx5_state(cur_state); mlx5_new = to_mlx5_state(new_state); mlx5_st = to_mlx5_st(ibqp->qp_type); - if (mlx5_cur < 0 || mlx5_new < 0 || mlx5_st < 0) + if (mlx5_st < 0) goto out; optpar = ib_mask_to_mlx5_opt(attr_mask); @@ -1744,6 +1747,7 @@ static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr, MLX5_MKEY_MASK_PD | MLX5_MKEY_MASK_LR | MLX5_MKEY_MASK_LW | + MLX5_MKEY_MASK_KEY | MLX5_MKEY_MASK_RR | MLX5_MKEY_MASK_RW | MLX5_MKEY_MASK_A | @@ -1800,7 +1804,8 @@ static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *w seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start); seg->len = cpu_to_be64(wr->wr.fast_reg.length); seg->log2_page_size = wr->wr.fast_reg.page_shift; - seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); + seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 | + mlx5_mkey_variant(wr->wr.fast_reg.rkey)); } static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg, @@ -1913,6 +1918,10 @@ static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size, if (unlikely((*seg == qp->sq.qend))) *seg = mlx5_get_send_wqe(qp, 0); if (!li) { + if (unlikely(wr->wr.fast_reg.page_list_len > + wr->wr.fast_reg.page_list->max_page_list_len)) + return -ENOMEM; + set_frwr_pages(*seg, wr, mdev, pd, writ); *seg += sizeof(struct mlx5_wqe_data_seg); *size += (sizeof(struct mlx5_wqe_data_seg) / 16); diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c index 0aa478bc291a..210b3eaf188a 100644 --- a/drivers/infiniband/hw/mlx5/srq.c +++ b/drivers/infiniband/hw/mlx5/srq.c @@ -123,7 +123,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq, goto err_in; } - (*in)->ctx.log_pg_sz = page_shift - PAGE_SHIFT; + (*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT; (*in)->ctx.pgoff_cqn = cpu_to_be32(offset << 26); return 0; @@ -192,7 +192,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq, } srq->wq_sig = !!srq_signature; - (*in)->ctx.log_pg_sz = page_shift - PAGE_SHIFT; + (*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT; return 0; @@ -390,9 +390,7 @@ int mlx5_ib_destroy_srq(struct ib_srq *srq) mlx5_ib_db_unmap_user(to_mucontext(srq->uobject->context), &msrq->db); ib_umem_release(msrq->umem); } else { - kfree(msrq->wrid); - mlx5_buf_free(&dev->mdev, &msrq->buf); - mlx5_db_free(&dev->mdev, &msrq->db); + destroy_srq_kernel(dev, msrq); } kfree(srq); diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 5b53ca5a2284..8308e3634767 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -2834,7 +2834,7 @@ static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, init_attr->qp_context = nesqp->ibqp.qp_context; init_attr->send_cq = nesqp->ibqp.send_cq; init_attr->recv_cq = nesqp->ibqp.recv_cq; - init_attr->srq = nesqp->ibqp.srq = nesqp->ibqp.srq; + init_attr->srq = nesqp->ibqp.srq; init_attr->cap = attr->cap; return 0; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h index adc11d14f878..294dd27b601e 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma.h @@ -122,6 +122,32 @@ struct mqe_ctx { bool cmd_done; }; +struct ocrdma_hw_mr { + u32 lkey; + u8 fr_mr; + u8 remote_atomic; + u8 remote_rd; + u8 remote_wr; + u8 local_rd; + u8 local_wr; + u8 mw_bind; + u8 rsvd; + u64 len; + struct ocrdma_pbl *pbl_table; + u32 num_pbls; + u32 num_pbes; + u32 pbl_size; + u32 pbe_size; + u64 fbo; + u64 va; +}; + +struct ocrdma_mr { + struct ib_mr ibmr; + struct ib_umem *umem; + struct ocrdma_hw_mr hwmr; +}; + struct ocrdma_dev { struct ib_device ibdev; struct ocrdma_dev_attr attr; @@ -169,7 +195,7 @@ struct ocrdma_dev { struct list_head entry; struct rcu_head rcu; int id; - u64 stag_arr[OCRDMA_MAX_STAG]; + struct ocrdma_mr *stag_arr[OCRDMA_MAX_STAG]; u16 pvid; }; @@ -294,31 +320,6 @@ struct ocrdma_qp { u16 db_cache; }; -struct ocrdma_hw_mr { - u32 lkey; - u8 fr_mr; - u8 remote_atomic; - u8 remote_rd; - u8 remote_wr; - u8 local_rd; - u8 local_wr; - u8 mw_bind; - u8 rsvd; - u64 len; - struct ocrdma_pbl *pbl_table; - u32 num_pbls; - u32 num_pbes; - u32 pbl_size; - u32 pbe_size; - u64 fbo; - u64 va; -}; - -struct ocrdma_mr { - struct ib_mr ibmr; - struct ib_umem *umem; - struct ocrdma_hw_mr hwmr; -}; struct ocrdma_ucontext { struct ib_ucontext ibucontext; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 50219ab2279d..56bf32fcb62c 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -1783,7 +1783,7 @@ static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd, u32 max_sges = attrs->cap.max_send_sge; /* QP1 may exceed 127 */ - max_wqe_allocated = min_t(int, attrs->cap.max_send_wr + 1, + max_wqe_allocated = min_t(u32, attrs->cap.max_send_wr + 1, dev->attr.max_wqe); status = ocrdma_build_q_conf(&max_wqe_allocated, diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index 0ce7674621ea..91443bcb9e0e 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -452,9 +452,6 @@ static void ocrdma_remove_free(struct rcu_head *rcu) { struct ocrdma_dev *dev = container_of(rcu, struct ocrdma_dev, rcu); - ocrdma_free_resources(dev); - ocrdma_cleanup_hw(dev); - idr_remove(&ocrdma_dev_id, dev->id); kfree(dev->mbx_cmd); ib_dealloc_device(&dev->ibdev); @@ -470,6 +467,10 @@ static void ocrdma_remove(struct ocrdma_dev *dev) spin_lock(&ocrdma_devlist_lock); list_del_rcu(&dev->entry); spin_unlock(&ocrdma_devlist_lock); + + ocrdma_free_resources(dev); + ocrdma_cleanup_hw(dev); + call_rcu(&dev->rcu, ocrdma_remove_free); } diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index 69f1d1221a6b..7686dceadd29 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -1981,9 +1981,7 @@ static int ocrdma_build_fr(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr, wqe_size = roundup(wqe_size, OCRDMA_WQE_ALIGN_BYTES); - if ((wr->wr.fast_reg.page_list_len > - qp->dev->attr.max_pages_per_frmr) || - (wr->wr.fast_reg.length > 0xffffffffULL)) + if (wr->wr.fast_reg.page_list_len > qp->dev->attr.max_pages_per_frmr) return -EINVAL; hdr->cw |= (OCRDMA_FR_MR << OCRDMA_WQE_OPCODE_SHIFT); @@ -2839,7 +2837,7 @@ struct ib_mr *ocrdma_alloc_frmr(struct ib_pd *ibpd, int max_page_list_len) goto mbx_err; mr->ibmr.rkey = mr->hwmr.lkey; mr->ibmr.lkey = mr->hwmr.lkey; - dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = (unsigned long) mr; + dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = mr; return &mr->ibmr; mbx_err: ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr); diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 016e7429adf6..5bfc02f450e6 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -6190,21 +6190,20 @@ static int setup_txselect(const char *str, struct kernel_param *kp) { struct qib_devdata *dd; unsigned long val; - int ret; - + char *n; if (strlen(str) >= MAX_ATTEN_LEN) { pr_info("txselect_values string too long\n"); return -ENOSPC; } - ret = kstrtoul(str, 0, &val); - if (ret || val >= (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + + val = simple_strtoul(str, &n, 0); + if (n == str || val >= (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + TXDDS_MFG_SZ)) { pr_info("txselect_values must start with a number < %d\n", TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + TXDDS_MFG_SZ); - return ret ? ret : -EINVAL; + return -EINVAL; } - strcpy(txselect_list, str); + list_for_each_entry(dd, &qib_dev_list, list) if (dd->deviceid == PCI_DEVICE_ID_QLOGIC_IB_7322) set_no_qsfp_atten(dd, 1); diff --git a/drivers/infiniband/hw/qib/qib_mad.h b/drivers/infiniband/hw/qib/qib_mad.h index 28874f8606f8..941d4d50d8e7 100644 --- a/drivers/infiniband/hw/qib/qib_mad.h +++ b/drivers/infiniband/hw/qib/qib_mad.h @@ -54,7 +54,7 @@ struct ib_node_info { __be32 revision; u8 local_port_num; u8 vendor_id[3]; -} __attribute__ ((packed)); +} __packed; struct ib_mad_notice_attr { u8 generic_type; @@ -73,7 +73,7 @@ struct ib_mad_notice_attr { __be16 reserved; __be16 lid; /* where violation happened */ u8 port_num; /* where violation happened */ - } __attribute__ ((packed)) ntc_129_131; + } __packed ntc_129_131; struct { __be16 reserved; @@ -83,14 +83,14 @@ struct ib_mad_notice_attr { __be32 new_cap_mask; /* new capability mask */ u8 reserved3; u8 change_flags; /* low 3 bits only */ - } __attribute__ ((packed)) ntc_144; + } __packed ntc_144; struct { __be16 reserved; __be16 lid; /* lid where sys guid changed */ __be16 reserved2; __be64 new_sys_guid; - } __attribute__ ((packed)) ntc_145; + } __packed ntc_145; struct { __be16 reserved; @@ -104,7 +104,7 @@ struct ib_mad_notice_attr { u8 reserved3; u8 dr_trunc_hop; u8 dr_rtn_path[30]; - } __attribute__ ((packed)) ntc_256; + } __packed ntc_256; struct { __be16 reserved; @@ -115,7 +115,7 @@ struct ib_mad_notice_attr { __be32 qp2; /* high 8 bits reserved */ union ib_gid gid1; union ib_gid gid2; - } __attribute__ ((packed)) ntc_257_258; + } __packed ntc_257_258; } details; }; @@ -209,7 +209,7 @@ struct ib_pma_portcounters_cong { __be64 port_rcv_packets; __be64 port_xmit_wait; __be64 port_adr_events; -} __attribute__ ((packed)); +} __packed; #define IB_PMA_CONG_HW_CONTROL_TIMER 0x00 #define IB_PMA_CONG_HW_CONTROL_SAMPLE 0x01 diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c index d0a0ea0c14d6..165aee2ca8a0 100644 --- a/drivers/infiniband/hw/qib/qib_user_sdma.c +++ b/drivers/infiniband/hw/qib/qib_user_sdma.c @@ -594,8 +594,7 @@ static int qib_user_sdma_pin_pages(const struct qib_devdata *dd, else j = npages; - ret = get_user_pages(current, current->mm, addr, - j, 0, 1, pages, NULL); + ret = get_user_pages_fast(addr, j, 0, pages); if (ret != j) { i = 0; j = ret; @@ -1294,11 +1293,8 @@ int qib_user_sdma_writev(struct qib_ctxtdata *rcd, int mxp = 8; int ndesc = 0; - down_write(¤t->mm->mmap_sem); ret = qib_user_sdma_queue_pkts(dd, ppd, pq, iov, dim, &list, &mxp, &ndesc); - up_write(¤t->mm->mmap_sem); - if (ret < 0) goto done_unlock; else { diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h index 012e2c7575ad..a01c7d2cf541 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.h +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -150,14 +150,14 @@ struct ib_reth { __be64 vaddr; __be32 rkey; __be32 length; -} __attribute__ ((packed)); +} __packed; struct ib_atomic_eth { __be32 vaddr[2]; /* unaligned so access as 2 32-bit words */ __be32 rkey; __be64 swap_data; __be64 compare_data; -} __attribute__ ((packed)); +} __packed; struct qib_other_headers { __be32 bth[3]; @@ -178,7 +178,7 @@ struct qib_other_headers { __be32 aeth; struct ib_atomic_eth atomic_eth; } u; -} __attribute__ ((packed)); +} __packed; /* * Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes @@ -195,12 +195,12 @@ struct qib_ib_header { } l; struct qib_other_headers oth; } u; -} __attribute__ ((packed)); +} __packed; struct qib_pio_header { __le32 pbc[2]; struct qib_ib_header hdr; -} __attribute__ ((packed)); +} __packed; /* * There is one struct qib_mcast for each multicast GID. diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index eb71aaa26a9a..c639f90cfda4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -101,6 +101,7 @@ enum { IPOIB_MCAST_FLAG_SENDONLY = 1, IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */ IPOIB_MCAST_FLAG_ATTACHED = 3, + IPOIB_MCAST_JOIN_STARTED = 4, MAX_SEND_CQE = 16, IPOIB_CM_COPYBREAK = 256, @@ -151,6 +152,7 @@ struct ipoib_mcast { struct sk_buff_head pkt_queue; struct net_device *dev; + struct completion done; }; struct ipoib_rx_buf { @@ -299,7 +301,7 @@ struct ipoib_dev_priv { unsigned long flags; - struct mutex vlan_mutex; + struct rw_semaphore vlan_rwsem; struct rb_root path_tree; struct list_head path_list; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 7a3175400b2a..1377f85911c2 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -140,7 +140,8 @@ static int ipoib_cm_post_receive_nonsrq(struct net_device *dev, static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, struct ipoib_cm_rx_buf *rx_ring, int id, int frags, - u64 mapping[IPOIB_CM_RX_SG]) + u64 mapping[IPOIB_CM_RX_SG], + gfp_t gfp) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct sk_buff *skb; @@ -164,7 +165,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, } for (i = 0; i < frags; i++) { - struct page *page = alloc_page(GFP_ATOMIC); + struct page *page = alloc_page(gfp); if (!page) goto partial_error; @@ -382,7 +383,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i for (i = 0; i < ipoib_recvq_size; ++i) { if (!ipoib_cm_alloc_rx_skb(dev, rx->rx_ring, i, IPOIB_CM_RX_SG - 1, - rx->rx_ring[i].mapping)) { + rx->rx_ring[i].mapping, + GFP_KERNEL)) { ipoib_warn(priv, "failed to allocate receive buffer %d\n", i); ret = -ENOMEM; goto err_count; @@ -639,7 +641,8 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) frags = PAGE_ALIGN(wc->byte_len - min(wc->byte_len, (unsigned)IPOIB_CM_HEAD_SIZE)) / PAGE_SIZE; - newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags, mapping); + newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags, + mapping, GFP_ATOMIC); if (unlikely(!newskb)) { /* * If we can't allocate a new RX buffer, dump @@ -1556,7 +1559,8 @@ int ipoib_cm_dev_init(struct net_device *dev) for (i = 0; i < ipoib_recvq_size; ++i) { if (!ipoib_cm_alloc_rx_skb(dev, priv->cm.srq_ring, i, priv->cm.num_frags - 1, - priv->cm.srq_ring[i].mapping)) { + priv->cm.srq_ring[i].mapping, + GFP_KERNEL)) { ipoib_warn(priv, "failed to allocate " "receive buffer %d\n", i); ipoib_cm_dev_cleanup(dev); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 196b1d13cbcb..6a7003ddb0be 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -685,15 +685,13 @@ int ipoib_ib_dev_open(struct net_device *dev) ret = ipoib_ib_post_receives(dev); if (ret) { ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret); - ipoib_ib_dev_stop(dev, 1); - return -1; + goto dev_stop; } ret = ipoib_cm_dev_open(dev); if (ret) { ipoib_warn(priv, "ipoib_cm_dev_open returned %d\n", ret); - ipoib_ib_dev_stop(dev, 1); - return -1; + goto dev_stop; } clear_bit(IPOIB_STOP_REAPER, &priv->flags); @@ -704,6 +702,11 @@ int ipoib_ib_dev_open(struct net_device *dev) napi_enable(&priv->napi); return 0; +dev_stop: + if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) + napi_enable(&priv->napi); + ipoib_ib_dev_stop(dev, 1); + return -1; } static void ipoib_pkey_dev_check_presence(struct net_device *dev) @@ -746,10 +749,8 @@ int ipoib_ib_dev_down(struct net_device *dev, int flush) if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) { mutex_lock(&pkey_mutex); set_bit(IPOIB_PKEY_STOP, &priv->flags); - cancel_delayed_work(&priv->pkey_poll_task); + cancel_delayed_work_sync(&priv->pkey_poll_task); mutex_unlock(&pkey_mutex); - if (flush) - flush_workqueue(ipoib_workqueue); } ipoib_mcast_stop_thread(dev, flush); @@ -974,7 +975,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, u16 new_index; int result; - mutex_lock(&priv->vlan_mutex); + down_read(&priv->vlan_rwsem); /* * Flush any child interfaces too -- they might be up even if @@ -983,7 +984,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv, list_for_each_entry(cpriv, &priv->child_intfs, list) __ipoib_ib_dev_flush(cpriv, level); - mutex_unlock(&priv->vlan_mutex); + up_read(&priv->vlan_rwsem); if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) { /* for non-child devices must check/update the pkey value here */ @@ -1081,6 +1082,11 @@ void ipoib_ib_dev_cleanup(struct net_device *dev) struct ipoib_dev_priv *priv = netdev_priv(dev); ipoib_dbg(priv, "cleaning up ib_dev\n"); + /* + * We must make sure there are no more (path) completions + * that may wish to touch priv fields that are no longer valid + */ + ipoib_flush_paths(dev); ipoib_mcast_stop_thread(dev, 1); ipoib_mcast_dev_flush(dev); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 82cec1af902c..d64ed05fb082 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -119,7 +119,7 @@ int ipoib_open(struct net_device *dev) struct ipoib_dev_priv *cpriv; /* Bring up any child interfaces too */ - mutex_lock(&priv->vlan_mutex); + down_read(&priv->vlan_rwsem); list_for_each_entry(cpriv, &priv->child_intfs, list) { int flags; @@ -129,7 +129,7 @@ int ipoib_open(struct net_device *dev) dev_change_flags(cpriv->dev, flags | IFF_UP); } - mutex_unlock(&priv->vlan_mutex); + up_read(&priv->vlan_rwsem); } netif_start_queue(dev); @@ -162,7 +162,7 @@ static int ipoib_stop(struct net_device *dev) struct ipoib_dev_priv *cpriv; /* Bring down any child interfaces too */ - mutex_lock(&priv->vlan_mutex); + down_read(&priv->vlan_rwsem); list_for_each_entry(cpriv, &priv->child_intfs, list) { int flags; @@ -172,7 +172,7 @@ static int ipoib_stop(struct net_device *dev) dev_change_flags(cpriv->dev, flags & ~IFF_UP); } - mutex_unlock(&priv->vlan_mutex); + up_read(&priv->vlan_rwsem); } return 0; @@ -1350,7 +1350,7 @@ void ipoib_setup(struct net_device *dev) ipoib_set_ethtool_ops(dev); - netif_napi_add(dev, &priv->napi, ipoib_poll, 100); + netif_napi_add(dev, &priv->napi, ipoib_poll, NAPI_POLL_WEIGHT); dev->watchdog_timeo = HZ; @@ -1372,7 +1372,7 @@ void ipoib_setup(struct net_device *dev) spin_lock_init(&priv->lock); - mutex_init(&priv->vlan_mutex); + init_rwsem(&priv->vlan_rwsem); INIT_LIST_HEAD(&priv->path_list); INIT_LIST_HEAD(&priv->child_intfs); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index cecb98a4c662..d4e005720d01 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -386,8 +386,10 @@ static int ipoib_mcast_join_complete(int status, mcast->mcmember.mgid.raw, status); /* We trap for port events ourselves. */ - if (status == -ENETRESET) - return 0; + if (status == -ENETRESET) { + status = 0; + goto out; + } if (!status) status = ipoib_mcast_join_finish(mcast, &multicast->rec); @@ -407,7 +409,8 @@ static int ipoib_mcast_join_complete(int status, if (mcast == priv->broadcast) queue_work(ipoib_workqueue, &priv->carrier_on_task); - return 0; + status = 0; + goto out; } if (mcast->logcount++ < 20) { @@ -434,7 +437,8 @@ static int ipoib_mcast_join_complete(int status, mcast->backoff * HZ); spin_unlock_irq(&priv->lock); mutex_unlock(&mcast_mutex); - +out: + complete(&mcast->done); return status; } @@ -484,11 +488,15 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast, } set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); + init_completion(&mcast->done); + set_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags); + mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port, &rec, comp_mask, GFP_KERNEL, ipoib_mcast_join_complete, mcast); if (IS_ERR(mcast->mc)) { clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); + complete(&mcast->done); ret = PTR_ERR(mcast->mc); ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret); @@ -510,10 +518,18 @@ void ipoib_mcast_join_task(struct work_struct *work) struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, mcast_task.work); struct net_device *dev = priv->dev; + struct ib_port_attr port_attr; if (!test_bit(IPOIB_MCAST_RUN, &priv->flags)) return; + if (ib_query_port(priv->ca, priv->port, &port_attr) || + port_attr.state != IB_PORT_ACTIVE) { + ipoib_dbg(priv, "port state is not ACTIVE (state = %d) suspending join task\n", + port_attr.state); + return; + } + if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid)) ipoib_warn(priv, "ib_query_gid() failed\n"); else @@ -751,6 +767,11 @@ void ipoib_mcast_dev_flush(struct net_device *dev) spin_unlock_irqrestore(&priv->lock, flags); + /* seperate between the wait to the leave*/ + list_for_each_entry_safe(mcast, tmcast, &remove_list, list) + if (test_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags)) + wait_for_completion(&mcast->done); + list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { ipoib_mcast_leave(dev, mcast); ipoib_mcast_free(mcast); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c index f81abe16cf09..c29b5c838833 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c @@ -142,10 +142,10 @@ static void ipoib_unregister_child_dev(struct net_device *dev, struct list_head priv = netdev_priv(dev); ppriv = netdev_priv(priv->parent); - mutex_lock(&ppriv->vlan_mutex); + down_write(&ppriv->vlan_rwsem); unregister_netdevice_queue(dev, head); list_del(&priv->list); - mutex_unlock(&ppriv->vlan_mutex); + up_write(&ppriv->vlan_rwsem); } static size_t ipoib_get_size(const struct net_device *dev) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c index 8292554bccb5..9fad7b5ac8b9 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c @@ -140,7 +140,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) if (!rtnl_trylock()) return restart_syscall(); - mutex_lock(&ppriv->vlan_mutex); + down_write(&ppriv->vlan_rwsem); /* * First ensure this isn't a duplicate. We check the parent device and @@ -163,7 +163,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey) result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD); out: - mutex_unlock(&ppriv->vlan_mutex); + up_write(&ppriv->vlan_rwsem); if (result) free_netdev(priv->dev); @@ -185,7 +185,8 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) if (!rtnl_trylock()) return restart_syscall(); - mutex_lock(&ppriv->vlan_mutex); + + down_write(&ppriv->vlan_rwsem); list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) { if (priv->pkey == pkey && priv->child_type == IPOIB_LEGACY_CHILD) { @@ -195,7 +196,8 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey) break; } } - mutex_unlock(&ppriv->vlan_mutex); + up_write(&ppriv->vlan_rwsem); + rtnl_unlock(); if (dev) { diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 6df23502059a..6be57c38638d 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -22,6 +22,7 @@ #include <linux/socket.h> #include <linux/in.h> #include <linux/in6.h> +#include <linux/llist.h> #include <rdma/ib_verbs.h> #include <rdma/rdma_cm.h> #include <target/target_core_base.h> @@ -489,6 +490,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) kref_init(&isert_conn->conn_kref); kref_get(&isert_conn->conn_kref); mutex_init(&isert_conn->conn_mutex); + mutex_init(&isert_conn->conn_comp_mutex); spin_lock_init(&isert_conn->conn_lock); cma_id->context = isert_conn; @@ -843,14 +845,32 @@ isert_init_tx_hdrs(struct isert_conn *isert_conn, } static void -isert_init_send_wr(struct isert_cmd *isert_cmd, struct ib_send_wr *send_wr) +isert_init_send_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd, + struct ib_send_wr *send_wr, bool coalesce) { + struct iser_tx_desc *tx_desc = &isert_cmd->tx_desc; + isert_cmd->rdma_wr.iser_ib_op = ISER_IB_SEND; send_wr->wr_id = (unsigned long)&isert_cmd->tx_desc; send_wr->opcode = IB_WR_SEND; - send_wr->send_flags = IB_SEND_SIGNALED; - send_wr->sg_list = &isert_cmd->tx_desc.tx_sg[0]; + send_wr->sg_list = &tx_desc->tx_sg[0]; send_wr->num_sge = isert_cmd->tx_desc.num_sge; + /* + * Coalesce send completion interrupts by only setting IB_SEND_SIGNALED + * bit for every ISERT_COMP_BATCH_COUNT number of ib_post_send() calls. + */ + mutex_lock(&isert_conn->conn_comp_mutex); + if (coalesce && + ++isert_conn->conn_comp_batch < ISERT_COMP_BATCH_COUNT) { + llist_add(&tx_desc->comp_llnode, &isert_conn->conn_comp_llist); + mutex_unlock(&isert_conn->conn_comp_mutex); + return; + } + isert_conn->conn_comp_batch = 0; + tx_desc->comp_llnode_batch = llist_del_all(&isert_conn->conn_comp_llist); + mutex_unlock(&isert_conn->conn_comp_mutex); + + send_wr->send_flags = IB_SEND_SIGNALED; } static int @@ -1582,8 +1602,8 @@ isert_response_completion(struct iser_tx_desc *tx_desc, } static void -isert_send_completion(struct iser_tx_desc *tx_desc, - struct isert_conn *isert_conn) +__isert_send_completion(struct iser_tx_desc *tx_desc, + struct isert_conn *isert_conn) { struct ib_device *ib_dev = isert_conn->conn_cm_id->device; struct isert_cmd *isert_cmd = tx_desc->isert_cmd; @@ -1624,6 +1644,24 @@ isert_send_completion(struct iser_tx_desc *tx_desc, } static void +isert_send_completion(struct iser_tx_desc *tx_desc, + struct isert_conn *isert_conn) +{ + struct llist_node *llnode = tx_desc->comp_llnode_batch; + struct iser_tx_desc *t; + /* + * Drain coalesced completion llist starting from comp_llnode_batch + * setup in isert_init_send_wr(), and then complete trailing tx_desc. + */ + while (llnode) { + t = llist_entry(llnode, struct iser_tx_desc, comp_llnode); + llnode = llist_next(llnode); + __isert_send_completion(t, isert_conn); + } + __isert_send_completion(tx_desc, isert_conn); +} + +static void isert_cq_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn) { struct ib_device *ib_dev = isert_conn->conn_cm_id->device; @@ -1793,7 +1831,7 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd) isert_cmd->tx_desc.num_sge = 2; } - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, true); pr_debug("Posting SCSI Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1813,7 +1851,7 @@ isert_put_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn, &isert_cmd->tx_desc.iscsi_header, nopout_response); isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, false); pr_debug("Posting NOPIN Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1831,7 +1869,7 @@ isert_put_logout_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn) iscsit_build_logout_rsp(cmd, conn, (struct iscsi_logout_rsp *) &isert_cmd->tx_desc.iscsi_header); isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, false); pr_debug("Posting Logout Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1849,7 +1887,7 @@ isert_put_tm_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn) iscsit_build_task_mgt_rsp(cmd, conn, (struct iscsi_tm_rsp *) &isert_cmd->tx_desc.iscsi_header); isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, false); pr_debug("Posting Task Management Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1881,7 +1919,7 @@ isert_put_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn) tx_dsg->lkey = isert_conn->conn_mr->lkey; isert_cmd->tx_desc.num_sge = 2; - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, false); pr_debug("Posting Reject IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1921,7 +1959,7 @@ isert_put_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn) tx_dsg->lkey = isert_conn->conn_mr->lkey; isert_cmd->tx_desc.num_sge = 2; } - isert_init_send_wr(isert_cmd, send_wr); + isert_init_send_wr(isert_conn, isert_cmd, send_wr, false); pr_debug("Posting Text Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n"); @@ -1991,8 +2029,6 @@ isert_map_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd, if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) { data_left = se_cmd->data_length; - iscsit_increment_maxcmdsn(cmd, conn->sess); - cmd->stat_sn = conn->stat_sn++; } else { sg_off = cmd->write_data_done / PAGE_SIZE; data_left = se_cmd->data_length - cmd->write_data_done; @@ -2204,8 +2240,6 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) { data_left = se_cmd->data_length; - iscsit_increment_maxcmdsn(cmd, conn->sess); - cmd->stat_sn = conn->stat_sn++; } else { sg_off = cmd->write_data_done / PAGE_SIZE; data_left = se_cmd->data_length - cmd->write_data_done; @@ -2259,18 +2293,26 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd, data_len = min(data_left, rdma_write_max); wr->cur_rdma_length = data_len; - spin_lock_irqsave(&isert_conn->conn_lock, flags); - fr_desc = list_first_entry(&isert_conn->conn_frwr_pool, - struct fast_reg_descriptor, list); - list_del(&fr_desc->list); - spin_unlock_irqrestore(&isert_conn->conn_lock, flags); - wr->fr_desc = fr_desc; + /* if there is a single dma entry, dma mr is sufficient */ + if (count == 1) { + ib_sge->addr = ib_sg_dma_address(ib_dev, &sg_start[0]); + ib_sge->length = ib_sg_dma_len(ib_dev, &sg_start[0]); + ib_sge->lkey = isert_conn->conn_mr->lkey; + wr->fr_desc = NULL; + } else { + spin_lock_irqsave(&isert_conn->conn_lock, flags); + fr_desc = list_first_entry(&isert_conn->conn_frwr_pool, + struct fast_reg_descriptor, list); + list_del(&fr_desc->list); + spin_unlock_irqrestore(&isert_conn->conn_lock, flags); + wr->fr_desc = fr_desc; - ret = isert_fast_reg_mr(fr_desc, isert_cmd, isert_conn, - ib_sge, offset, data_len); - if (ret) { - list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool); - goto unmap_sg; + ret = isert_fast_reg_mr(fr_desc, isert_cmd, isert_conn, + ib_sge, offset, data_len); + if (ret) { + list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool); + goto unmap_sg; + } } return 0; @@ -2306,10 +2348,11 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd) * Build isert_conn->tx_desc for iSCSI response PDU and attach */ isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc); - iscsit_build_rsp_pdu(cmd, conn, false, (struct iscsi_scsi_rsp *) + iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *) &isert_cmd->tx_desc.iscsi_header); isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc); - isert_init_send_wr(isert_cmd, &isert_cmd->tx_desc.send_wr); + isert_init_send_wr(isert_conn, isert_cmd, + &isert_cmd->tx_desc.send_wr, true); atomic_inc(&isert_conn->post_send_buf_count); diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h index 631f2090f0b8..691f90ff2d83 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.h +++ b/drivers/infiniband/ulp/isert/ib_isert.h @@ -43,6 +43,8 @@ struct iser_tx_desc { struct ib_sge tx_sg[2]; int num_sge; struct isert_cmd *isert_cmd; + struct llist_node *comp_llnode_batch; + struct llist_node comp_llnode; struct ib_send_wr send_wr; } __packed; @@ -121,6 +123,10 @@ struct isert_conn { int conn_frwr_pool_size; /* lock to protect frwr_pool */ spinlock_t conn_lock; +#define ISERT_COMP_BATCH_COUNT 8 + int conn_comp_batch; + struct llist_head conn_comp_llist; + struct mutex conn_comp_mutex; }; #define ISERT_MAX_CQ 64 diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index f93baf8254c4..a88631918e85 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -46,6 +46,7 @@ #include <scsi/scsi.h> #include <scsi/scsi_device.h> #include <scsi/scsi_dbg.h> +#include <scsi/scsi_tcq.h> #include <scsi/srp.h> #include <scsi/scsi_transport_srp.h> @@ -86,6 +87,32 @@ module_param(topspin_workarounds, int, 0444); MODULE_PARM_DESC(topspin_workarounds, "Enable workarounds for Topspin/Cisco SRP target bugs if != 0"); +static struct kernel_param_ops srp_tmo_ops; + +static int srp_reconnect_delay = 10; +module_param_cb(reconnect_delay, &srp_tmo_ops, &srp_reconnect_delay, + S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(reconnect_delay, "Time between successive reconnect attempts"); + +static int srp_fast_io_fail_tmo = 15; +module_param_cb(fast_io_fail_tmo, &srp_tmo_ops, &srp_fast_io_fail_tmo, + S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(fast_io_fail_tmo, + "Number of seconds between the observation of a transport" + " layer error and failing all I/O. \"off\" means that this" + " functionality is disabled."); + +static int srp_dev_loss_tmo = 600; +module_param_cb(dev_loss_tmo, &srp_tmo_ops, &srp_dev_loss_tmo, + S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(dev_loss_tmo, + "Maximum number of seconds that the SRP transport should" + " insulate transport layer errors. After this time has been" + " exceeded the SCSI host is removed. Should be" + " between 1 and " __stringify(SCSI_DEVICE_BLOCK_MAX_TIMEOUT) + " if fast_io_fail_tmo has not been set. \"off\" means that" + " this functionality is disabled."); + static void srp_add_one(struct ib_device *device); static void srp_remove_one(struct ib_device *device); static void srp_recv_completion(struct ib_cq *cq, void *target_ptr); @@ -102,6 +129,48 @@ static struct ib_client srp_client = { static struct ib_sa_client srp_sa_client; +static int srp_tmo_get(char *buffer, const struct kernel_param *kp) +{ + int tmo = *(int *)kp->arg; + + if (tmo >= 0) + return sprintf(buffer, "%d", tmo); + else + return sprintf(buffer, "off"); +} + +static int srp_tmo_set(const char *val, const struct kernel_param *kp) +{ + int tmo, res; + + if (strncmp(val, "off", 3) != 0) { + res = kstrtoint(val, 0, &tmo); + if (res) + goto out; + } else { + tmo = -1; + } + if (kp->arg == &srp_reconnect_delay) + res = srp_tmo_valid(tmo, srp_fast_io_fail_tmo, + srp_dev_loss_tmo); + else if (kp->arg == &srp_fast_io_fail_tmo) + res = srp_tmo_valid(srp_reconnect_delay, tmo, srp_dev_loss_tmo); + else + res = srp_tmo_valid(srp_reconnect_delay, srp_fast_io_fail_tmo, + tmo); + if (res) + goto out; + *(int *)kp->arg = tmo; + +out: + return res; +} + +static struct kernel_param_ops srp_tmo_ops = { + .get = srp_tmo_get, + .set = srp_tmo_set, +}; + static inline struct srp_target_port *host_to_target(struct Scsi_Host *host) { return (struct srp_target_port *) host->hostdata; @@ -231,16 +300,16 @@ static int srp_create_target_ib(struct srp_target_port *target) return -ENOMEM; recv_cq = ib_create_cq(target->srp_host->srp_dev->dev, - srp_recv_completion, NULL, target, SRP_RQ_SIZE, - target->comp_vector); + srp_recv_completion, NULL, target, + target->queue_size, target->comp_vector); if (IS_ERR(recv_cq)) { ret = PTR_ERR(recv_cq); goto err; } send_cq = ib_create_cq(target->srp_host->srp_dev->dev, - srp_send_completion, NULL, target, SRP_SQ_SIZE, - target->comp_vector); + srp_send_completion, NULL, target, + target->queue_size, target->comp_vector); if (IS_ERR(send_cq)) { ret = PTR_ERR(send_cq); goto err_recv_cq; @@ -249,8 +318,8 @@ static int srp_create_target_ib(struct srp_target_port *target) ib_req_notify_cq(recv_cq, IB_CQ_NEXT_COMP); init_attr->event_handler = srp_qp_event; - init_attr->cap.max_send_wr = SRP_SQ_SIZE; - init_attr->cap.max_recv_wr = SRP_RQ_SIZE; + init_attr->cap.max_send_wr = target->queue_size; + init_attr->cap.max_recv_wr = target->queue_size; init_attr->cap.max_recv_sge = 1; init_attr->cap.max_send_sge = 1; init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; @@ -296,6 +365,10 @@ err: return ret; } +/* + * Note: this function may be called without srp_alloc_iu_bufs() having been + * invoked. Hence the target->[rt]x_ring checks. + */ static void srp_free_target_ib(struct srp_target_port *target) { int i; @@ -307,10 +380,18 @@ static void srp_free_target_ib(struct srp_target_port *target) target->qp = NULL; target->send_cq = target->recv_cq = NULL; - for (i = 0; i < SRP_RQ_SIZE; ++i) - srp_free_iu(target->srp_host, target->rx_ring[i]); - for (i = 0; i < SRP_SQ_SIZE; ++i) - srp_free_iu(target->srp_host, target->tx_ring[i]); + if (target->rx_ring) { + for (i = 0; i < target->queue_size; ++i) + srp_free_iu(target->srp_host, target->rx_ring[i]); + kfree(target->rx_ring); + target->rx_ring = NULL; + } + if (target->tx_ring) { + for (i = 0; i < target->queue_size; ++i) + srp_free_iu(target->srp_host, target->tx_ring[i]); + kfree(target->tx_ring); + target->tx_ring = NULL; + } } static void srp_path_rec_completion(int status, @@ -390,7 +471,7 @@ static int srp_send_req(struct srp_target_port *target) req->param.responder_resources = 4; req->param.remote_cm_response_timeout = 20; req->param.local_cm_response_timeout = 20; - req->param.retry_count = 7; + req->param.retry_count = target->tl_retry_count; req->param.rnr_retry_count = 7; req->param.max_cm_retries = 15; @@ -496,7 +577,11 @@ static void srp_free_req_data(struct srp_target_port *target) struct srp_request *req; int i; - for (i = 0, req = target->req_ring; i < SRP_CMD_SQ_SIZE; ++i, ++req) { + if (!target->req_ring) + return; + + for (i = 0; i < target->req_ring_size; ++i) { + req = &target->req_ring[i]; kfree(req->fmr_list); kfree(req->map_page); if (req->indirect_dma_addr) { @@ -506,6 +591,50 @@ static void srp_free_req_data(struct srp_target_port *target) } kfree(req->indirect_desc); } + + kfree(target->req_ring); + target->req_ring = NULL; +} + +static int srp_alloc_req_data(struct srp_target_port *target) +{ + struct srp_device *srp_dev = target->srp_host->srp_dev; + struct ib_device *ibdev = srp_dev->dev; + struct srp_request *req; + dma_addr_t dma_addr; + int i, ret = -ENOMEM; + + INIT_LIST_HEAD(&target->free_reqs); + + target->req_ring = kzalloc(target->req_ring_size * + sizeof(*target->req_ring), GFP_KERNEL); + if (!target->req_ring) + goto out; + + for (i = 0; i < target->req_ring_size; ++i) { + req = &target->req_ring[i]; + req->fmr_list = kmalloc(target->cmd_sg_cnt * sizeof(void *), + GFP_KERNEL); + req->map_page = kmalloc(SRP_FMR_SIZE * sizeof(void *), + GFP_KERNEL); + req->indirect_desc = kmalloc(target->indirect_size, GFP_KERNEL); + if (!req->fmr_list || !req->map_page || !req->indirect_desc) + goto out; + + dma_addr = ib_dma_map_single(ibdev, req->indirect_desc, + target->indirect_size, + DMA_TO_DEVICE); + if (ib_dma_mapping_error(ibdev, dma_addr)) + goto out; + + req->indirect_dma_addr = dma_addr; + req->index = i; + list_add_tail(&req->list, &target->free_reqs); + } + ret = 0; + +out: + return ret; } /** @@ -528,12 +657,20 @@ static void srp_remove_target(struct srp_target_port *target) WARN_ON_ONCE(target->state != SRP_TARGET_REMOVED); srp_del_scsi_host_attr(target->scsi_host); + srp_rport_get(target->rport); srp_remove_host(target->scsi_host); scsi_remove_host(target->scsi_host); srp_disconnect_target(target); ib_destroy_cm_id(target->cm_id); srp_free_target_ib(target); + cancel_work_sync(&target->tl_err_work); + srp_rport_put(target->rport); srp_free_req_data(target); + + spin_lock(&target->srp_host->target_lock); + list_del(&target->list); + spin_unlock(&target->srp_host->target_lock); + scsi_host_put(target->scsi_host); } @@ -545,10 +682,6 @@ static void srp_remove_work(struct work_struct *work) WARN_ON_ONCE(target->state != SRP_TARGET_REMOVED); srp_remove_target(target); - - spin_lock(&target->srp_host->target_lock); - list_del(&target->list); - spin_unlock(&target->srp_host->target_lock); } static void srp_rport_delete(struct srp_rport *rport) @@ -686,23 +819,42 @@ static void srp_free_req(struct srp_target_port *target, spin_unlock_irqrestore(&target->lock, flags); } -static void srp_reset_req(struct srp_target_port *target, struct srp_request *req) +static void srp_finish_req(struct srp_target_port *target, + struct srp_request *req, int result) { struct scsi_cmnd *scmnd = srp_claim_req(target, req, NULL); if (scmnd) { srp_free_req(target, req, scmnd, 0); - scmnd->result = DID_RESET << 16; + scmnd->result = result; scmnd->scsi_done(scmnd); } } -static int srp_reconnect_target(struct srp_target_port *target) +static void srp_terminate_io(struct srp_rport *rport) { - struct Scsi_Host *shost = target->scsi_host; - int i, ret; + struct srp_target_port *target = rport->lld_data; + int i; - scsi_target_block(&shost->shost_gendev); + for (i = 0; i < target->req_ring_size; ++i) { + struct srp_request *req = &target->req_ring[i]; + srp_finish_req(target, req, DID_TRANSPORT_FAILFAST << 16); + } +} + +/* + * It is up to the caller to ensure that srp_rport_reconnect() calls are + * serialized and that no concurrent srp_queuecommand(), srp_abort(), + * srp_reset_device() or srp_reset_host() calls will occur while this function + * is in progress. One way to realize that is not to call this function + * directly but to call srp_reconnect_rport() instead since that last function + * serializes calls of this function via rport->mutex and also blocks + * srp_queuecommand() calls before invoking this function. + */ +static int srp_rport_reconnect(struct srp_rport *rport) +{ + struct srp_target_port *target = rport->lld_data; + int i, ret; srp_disconnect_target(target); /* @@ -721,41 +873,21 @@ static int srp_reconnect_target(struct srp_target_port *target) else srp_create_target_ib(target); - for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) { + for (i = 0; i < target->req_ring_size; ++i) { struct srp_request *req = &target->req_ring[i]; - if (req->scmnd) - srp_reset_req(target, req); + srp_finish_req(target, req, DID_RESET << 16); } INIT_LIST_HEAD(&target->free_tx); - for (i = 0; i < SRP_SQ_SIZE; ++i) + for (i = 0; i < target->queue_size; ++i) list_add(&target->tx_ring[i]->list, &target->free_tx); if (ret == 0) ret = srp_connect_target(target); - scsi_target_unblock(&shost->shost_gendev, ret == 0 ? SDEV_RUNNING : - SDEV_TRANSPORT_OFFLINE); - target->transport_offline = !!ret; - - if (ret) - goto err; - - shost_printk(KERN_INFO, target->scsi_host, PFX "reconnect succeeded\n"); - - return ret; - -err: - shost_printk(KERN_ERR, target->scsi_host, - PFX "reconnect failed (%d), removing target port.\n", ret); - - /* - * We couldn't reconnect, so kill our target port off. - * However, we have to defer the real removal because we - * are in the context of the SCSI error handler now, which - * will deadlock if we call scsi_remove_host(). - */ - srp_queue_remove_work(target); + if (ret == 0) + shost_printk(KERN_INFO, target->scsi_host, + PFX "reconnect succeeded\n"); return ret; } @@ -1302,15 +1434,30 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc) PFX "Recv failed with error code %d\n", res); } -static void srp_handle_qp_err(enum ib_wc_status wc_status, - enum ib_wc_opcode wc_opcode, +/** + * srp_tl_err_work() - handle a transport layer error + * + * Note: This function may get invoked before the rport has been created, + * hence the target->rport test. + */ +static void srp_tl_err_work(struct work_struct *work) +{ + struct srp_target_port *target; + + target = container_of(work, struct srp_target_port, tl_err_work); + if (target->rport) + srp_start_tl_fail_timers(target->rport); +} + +static void srp_handle_qp_err(enum ib_wc_status wc_status, bool send_err, struct srp_target_port *target) { if (target->connected && !target->qp_in_error) { shost_printk(KERN_ERR, target->scsi_host, PFX "failed %s status %d\n", - wc_opcode & IB_WC_RECV ? "receive" : "send", + send_err ? "send" : "receive", wc_status); + queue_work(system_long_wq, &target->tl_err_work); } target->qp_in_error = true; } @@ -1325,7 +1472,7 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr) if (likely(wc.status == IB_WC_SUCCESS)) { srp_handle_recv(target, &wc); } else { - srp_handle_qp_err(wc.status, wc.opcode, target); + srp_handle_qp_err(wc.status, false, target); } } } @@ -1341,7 +1488,7 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr) iu = (struct srp_iu *) (uintptr_t) wc.wr_id; list_add(&iu->list, &target->free_tx); } else { - srp_handle_qp_err(wc.status, wc.opcode, target); + srp_handle_qp_err(wc.status, true, target); } } } @@ -1349,17 +1496,29 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr) static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd) { struct srp_target_port *target = host_to_target(shost); + struct srp_rport *rport = target->rport; struct srp_request *req; struct srp_iu *iu; struct srp_cmd *cmd; struct ib_device *dev; unsigned long flags; - int len; + int len, result; + const bool in_scsi_eh = !in_interrupt() && current == shost->ehandler; + + /* + * The SCSI EH thread is the only context from which srp_queuecommand() + * can get invoked for blocked devices (SDEV_BLOCK / + * SDEV_CREATED_BLOCK). Avoid racing with srp_reconnect_rport() by + * locking the rport mutex if invoked from inside the SCSI EH. + */ + if (in_scsi_eh) + mutex_lock(&rport->mutex); - if (unlikely(target->transport_offline)) { - scmnd->result = DID_NO_CONNECT << 16; + result = srp_chkready(target->rport); + if (unlikely(result)) { + scmnd->result = result; scmnd->scsi_done(scmnd); - return 0; + goto unlock_rport; } spin_lock_irqsave(&target->lock, flags); @@ -1404,6 +1563,10 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd) goto err_unmap; } +unlock_rport: + if (in_scsi_eh) + mutex_unlock(&rport->mutex); + return 0; err_unmap: @@ -1418,14 +1581,30 @@ err_iu: err_unlock: spin_unlock_irqrestore(&target->lock, flags); + if (in_scsi_eh) + mutex_unlock(&rport->mutex); + return SCSI_MLQUEUE_HOST_BUSY; } +/* + * Note: the resources allocated in this function are freed in + * srp_free_target_ib(). + */ static int srp_alloc_iu_bufs(struct srp_target_port *target) { int i; - for (i = 0; i < SRP_RQ_SIZE; ++i) { + target->rx_ring = kzalloc(target->queue_size * sizeof(*target->rx_ring), + GFP_KERNEL); + if (!target->rx_ring) + goto err_no_ring; + target->tx_ring = kzalloc(target->queue_size * sizeof(*target->tx_ring), + GFP_KERNEL); + if (!target->tx_ring) + goto err_no_ring; + + for (i = 0; i < target->queue_size; ++i) { target->rx_ring[i] = srp_alloc_iu(target->srp_host, target->max_ti_iu_len, GFP_KERNEL, DMA_FROM_DEVICE); @@ -1433,7 +1612,7 @@ static int srp_alloc_iu_bufs(struct srp_target_port *target) goto err; } - for (i = 0; i < SRP_SQ_SIZE; ++i) { + for (i = 0; i < target->queue_size; ++i) { target->tx_ring[i] = srp_alloc_iu(target->srp_host, target->max_iu_len, GFP_KERNEL, DMA_TO_DEVICE); @@ -1446,16 +1625,18 @@ static int srp_alloc_iu_bufs(struct srp_target_port *target) return 0; err: - for (i = 0; i < SRP_RQ_SIZE; ++i) { + for (i = 0; i < target->queue_size; ++i) { srp_free_iu(target->srp_host, target->rx_ring[i]); - target->rx_ring[i] = NULL; - } - - for (i = 0; i < SRP_SQ_SIZE; ++i) { srp_free_iu(target->srp_host, target->tx_ring[i]); - target->tx_ring[i] = NULL; } + +err_no_ring: + kfree(target->tx_ring); + target->tx_ring = NULL; + kfree(target->rx_ring); + target->rx_ring = NULL; + return -ENOMEM; } @@ -1506,6 +1687,9 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id, target->scsi_host->can_queue = min(target->req_lim - SRP_TSK_MGMT_SQ_SIZE, target->scsi_host->can_queue); + target->scsi_host->cmd_per_lun + = min_t(int, target->scsi_host->can_queue, + target->scsi_host->cmd_per_lun); } else { shost_printk(KERN_WARNING, target->scsi_host, PFX "Unhandled RSP opcode %#x\n", lrsp->opcode); @@ -1513,7 +1697,7 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id, goto error; } - if (!target->rx_ring[0]) { + if (!target->rx_ring) { ret = srp_alloc_iu_bufs(target); if (ret) goto error; @@ -1533,7 +1717,7 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id, if (ret) goto error_free; - for (i = 0; i < SRP_RQ_SIZE; i++) { + for (i = 0; i < target->queue_size; i++) { struct srp_iu *iu = target->rx_ring[i]; ret = srp_post_recv(target, iu); if (ret) @@ -1672,6 +1856,7 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) if (ib_send_cm_drep(cm_id, NULL, 0)) shost_printk(KERN_ERR, target->scsi_host, PFX "Sending CM DREP failed\n"); + queue_work(system_long_wq, &target->tl_err_work); break; case IB_CM_TIMEWAIT_EXIT: @@ -1698,9 +1883,61 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event) return 0; } +/** + * srp_change_queue_type - changing device queue tag type + * @sdev: scsi device struct + * @tag_type: requested tag type + * + * Returns queue tag type. + */ +static int +srp_change_queue_type(struct scsi_device *sdev, int tag_type) +{ + if (sdev->tagged_supported) { + scsi_set_tag_type(sdev, tag_type); + if (tag_type) + scsi_activate_tcq(sdev, sdev->queue_depth); + else + scsi_deactivate_tcq(sdev, sdev->queue_depth); + } else + tag_type = 0; + + return tag_type; +} + +/** + * srp_change_queue_depth - setting device queue depth + * @sdev: scsi device struct + * @qdepth: requested queue depth + * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP + * (see include/scsi/scsi_host.h for definition) + * + * Returns queue depth. + */ +static int +srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) +{ + struct Scsi_Host *shost = sdev->host; + int max_depth; + if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) { + max_depth = shost->can_queue; + if (!sdev->tagged_supported) + max_depth = 1; + if (qdepth > max_depth) + qdepth = max_depth; + scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); + } else if (reason == SCSI_QDEPTH_QFULL) + scsi_track_queue_full(sdev, qdepth); + else + return -EOPNOTSUPP; + + return sdev->queue_depth; +} + static int srp_send_tsk_mgmt(struct srp_target_port *target, u64 req_tag, unsigned int lun, u8 func) { + struct srp_rport *rport = target->rport; struct ib_device *dev = target->srp_host->srp_dev->dev; struct srp_iu *iu; struct srp_tsk_mgmt *tsk_mgmt; @@ -1710,12 +1947,20 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target, init_completion(&target->tsk_mgmt_done); + /* + * Lock the rport mutex to avoid that srp_create_target_ib() is + * invoked while a task management function is being sent. + */ + mutex_lock(&rport->mutex); spin_lock_irq(&target->lock); iu = __srp_get_tx_iu(target, SRP_IU_TSK_MGMT); spin_unlock_irq(&target->lock); - if (!iu) + if (!iu) { + mutex_unlock(&rport->mutex); + return -1; + } ib_dma_sync_single_for_cpu(dev, iu->dma, sizeof *tsk_mgmt, DMA_TO_DEVICE); @@ -1732,8 +1977,11 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target, DMA_TO_DEVICE); if (srp_post_send(target, iu, sizeof *tsk_mgmt)) { srp_put_tx_iu(target, iu, SRP_IU_TSK_MGMT); + mutex_unlock(&rport->mutex); + return -1; } + mutex_unlock(&rport->mutex); if (!wait_for_completion_timeout(&target->tsk_mgmt_done, msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS))) @@ -1751,11 +1999,11 @@ static int srp_abort(struct scsi_cmnd *scmnd) shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n"); if (!req || !srp_claim_req(target, req, scmnd)) - return FAILED; + return SUCCESS; if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun, SRP_TSK_ABORT_TASK) == 0) ret = SUCCESS; - else if (target->transport_offline) + else if (target->rport->state == SRP_RPORT_LOST) ret = FAST_IO_FAIL; else ret = FAILED; @@ -1779,10 +2027,10 @@ static int srp_reset_device(struct scsi_cmnd *scmnd) if (target->tsk_mgmt_status) return FAILED; - for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) { + for (i = 0; i < target->req_ring_size; ++i) { struct srp_request *req = &target->req_ring[i]; if (req->scmnd && req->scmnd->device == scmnd->device) - srp_reset_req(target, req); + srp_finish_req(target, req, DID_RESET << 16); } return SUCCESS; @@ -1791,14 +2039,10 @@ static int srp_reset_device(struct scsi_cmnd *scmnd) static int srp_reset_host(struct scsi_cmnd *scmnd) { struct srp_target_port *target = host_to_target(scmnd->device->host); - int ret = FAILED; shost_printk(KERN_ERR, target->scsi_host, PFX "SRP reset_host called\n"); - if (!srp_reconnect_target(target)) - ret = SUCCESS; - - return ret; + return srp_reconnect_rport(target->rport) == 0 ? SUCCESS : FAILED; } static int srp_slave_configure(struct scsi_device *sdev) @@ -1851,6 +2095,14 @@ static ssize_t show_pkey(struct device *dev, struct device_attribute *attr, return sprintf(buf, "0x%04x\n", be16_to_cpu(target->path.pkey)); } +static ssize_t show_sgid(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct srp_target_port *target = host_to_target(class_to_shost(dev)); + + return sprintf(buf, "%pI6\n", target->path.sgid.raw); +} + static ssize_t show_dgid(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1907,6 +2159,14 @@ static ssize_t show_comp_vector(struct device *dev, return sprintf(buf, "%d\n", target->comp_vector); } +static ssize_t show_tl_retry_count(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct srp_target_port *target = host_to_target(class_to_shost(dev)); + + return sprintf(buf, "%d\n", target->tl_retry_count); +} + static ssize_t show_cmd_sg_entries(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1927,6 +2187,7 @@ static DEVICE_ATTR(id_ext, S_IRUGO, show_id_ext, NULL); static DEVICE_ATTR(ioc_guid, S_IRUGO, show_ioc_guid, NULL); static DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL); static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL); +static DEVICE_ATTR(sgid, S_IRUGO, show_sgid, NULL); static DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL); static DEVICE_ATTR(orig_dgid, S_IRUGO, show_orig_dgid, NULL); static DEVICE_ATTR(req_lim, S_IRUGO, show_req_lim, NULL); @@ -1934,6 +2195,7 @@ static DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL); static DEVICE_ATTR(local_ib_port, S_IRUGO, show_local_ib_port, NULL); static DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL); static DEVICE_ATTR(comp_vector, S_IRUGO, show_comp_vector, NULL); +static DEVICE_ATTR(tl_retry_count, S_IRUGO, show_tl_retry_count, NULL); static DEVICE_ATTR(cmd_sg_entries, S_IRUGO, show_cmd_sg_entries, NULL); static DEVICE_ATTR(allow_ext_sg, S_IRUGO, show_allow_ext_sg, NULL); @@ -1942,6 +2204,7 @@ static struct device_attribute *srp_host_attrs[] = { &dev_attr_ioc_guid, &dev_attr_service_id, &dev_attr_pkey, + &dev_attr_sgid, &dev_attr_dgid, &dev_attr_orig_dgid, &dev_attr_req_lim, @@ -1949,6 +2212,7 @@ static struct device_attribute *srp_host_attrs[] = { &dev_attr_local_ib_port, &dev_attr_local_ib_device, &dev_attr_comp_vector, + &dev_attr_tl_retry_count, &dev_attr_cmd_sg_entries, &dev_attr_allow_ext_sg, NULL @@ -1961,14 +2225,16 @@ static struct scsi_host_template srp_template = { .slave_configure = srp_slave_configure, .info = srp_target_info, .queuecommand = srp_queuecommand, + .change_queue_depth = srp_change_queue_depth, + .change_queue_type = srp_change_queue_type, .eh_abort_handler = srp_abort, .eh_device_reset_handler = srp_reset_device, .eh_host_reset_handler = srp_reset_host, .skip_settle_delay = true, .sg_tablesize = SRP_DEF_SG_TABLESIZE, - .can_queue = SRP_CMD_SQ_SIZE, + .can_queue = SRP_DEFAULT_CMD_SQ_SIZE, .this_id = -1, - .cmd_per_lun = SRP_CMD_SQ_SIZE, + .cmd_per_lun = SRP_DEFAULT_CMD_SQ_SIZE, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = srp_host_attrs }; @@ -1994,6 +2260,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target) } rport->lld_data = target; + target->rport = rport; spin_lock(&host->target_lock); list_add_tail(&target->list, &host->target_list); @@ -2073,6 +2340,8 @@ enum { SRP_OPT_ALLOW_EXT_SG = 1 << 10, SRP_OPT_SG_TABLESIZE = 1 << 11, SRP_OPT_COMP_VECTOR = 1 << 12, + SRP_OPT_TL_RETRY_COUNT = 1 << 13, + SRP_OPT_QUEUE_SIZE = 1 << 14, SRP_OPT_ALL = (SRP_OPT_ID_EXT | SRP_OPT_IOC_GUID | SRP_OPT_DGID | @@ -2094,6 +2363,8 @@ static const match_table_t srp_opt_tokens = { { SRP_OPT_ALLOW_EXT_SG, "allow_ext_sg=%u" }, { SRP_OPT_SG_TABLESIZE, "sg_tablesize=%u" }, { SRP_OPT_COMP_VECTOR, "comp_vector=%u" }, + { SRP_OPT_TL_RETRY_COUNT, "tl_retry_count=%u" }, + { SRP_OPT_QUEUE_SIZE, "queue_size=%d" }, { SRP_OPT_ERR, NULL } }; @@ -2188,13 +2459,25 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target) target->scsi_host->max_sectors = token; break; + case SRP_OPT_QUEUE_SIZE: + if (match_int(args, &token) || token < 1) { + pr_warn("bad queue_size parameter '%s'\n", p); + goto out; + } + target->scsi_host->can_queue = token; + target->queue_size = token + SRP_RSP_SQ_SIZE + + SRP_TSK_MGMT_SQ_SIZE; + if (!(opt_mask & SRP_OPT_MAX_CMD_PER_LUN)) + target->scsi_host->cmd_per_lun = token; + break; + case SRP_OPT_MAX_CMD_PER_LUN: - if (match_int(args, &token)) { + if (match_int(args, &token) || token < 1) { pr_warn("bad max cmd_per_lun parameter '%s'\n", p); goto out; } - target->scsi_host->cmd_per_lun = min(token, SRP_CMD_SQ_SIZE); + target->scsi_host->cmd_per_lun = token; break; case SRP_OPT_IO_CLASS: @@ -2257,6 +2540,15 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target) target->comp_vector = token; break; + case SRP_OPT_TL_RETRY_COUNT: + if (match_int(args, &token) || token < 2 || token > 7) { + pr_warn("bad tl_retry_count parameter '%s' (must be a number between 2 and 7)\n", + p); + goto out; + } + target->tl_retry_count = token; + break; + default: pr_warn("unknown parameter or missing value '%s' in target creation request\n", p); @@ -2273,6 +2565,12 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target) pr_warn("target creation request is missing parameter '%s'\n", srp_opt_tokens[i].pattern); + if (target->scsi_host->cmd_per_lun > target->scsi_host->can_queue + && (opt_mask & SRP_OPT_MAX_CMD_PER_LUN)) + pr_warn("cmd_per_lun = %d > queue_size = %d\n", + target->scsi_host->cmd_per_lun, + target->scsi_host->can_queue); + out: kfree(options); return ret; @@ -2287,8 +2585,7 @@ static ssize_t srp_create_target(struct device *dev, struct Scsi_Host *target_host; struct srp_target_port *target; struct ib_device *ibdev = host->srp_dev->dev; - dma_addr_t dma_addr; - int i, ret; + int ret; target_host = scsi_host_alloc(&srp_template, sizeof (struct srp_target_port)); @@ -2311,11 +2608,15 @@ static ssize_t srp_create_target(struct device *dev, target->cmd_sg_cnt = cmd_sg_entries; target->sg_tablesize = indirect_sg_entries ? : cmd_sg_entries; target->allow_ext_sg = allow_ext_sg; + target->tl_retry_count = 7; + target->queue_size = SRP_DEFAULT_QUEUE_SIZE; ret = srp_parse_options(buf, target); if (ret) goto err; + target->req_ring_size = target->queue_size - SRP_TSK_MGMT_SQ_SIZE; + if (!srp_conn_unique(target->srp_host, target)) { shost_printk(KERN_INFO, target->scsi_host, PFX "Already connected to target port with id_ext=%016llx;ioc_guid=%016llx;initiator_ext=%016llx\n", @@ -2339,31 +2640,13 @@ static ssize_t srp_create_target(struct device *dev, sizeof (struct srp_indirect_buf) + target->cmd_sg_cnt * sizeof (struct srp_direct_buf); + INIT_WORK(&target->tl_err_work, srp_tl_err_work); INIT_WORK(&target->remove_work, srp_remove_work); spin_lock_init(&target->lock); INIT_LIST_HEAD(&target->free_tx); - INIT_LIST_HEAD(&target->free_reqs); - for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) { - struct srp_request *req = &target->req_ring[i]; - - req->fmr_list = kmalloc(target->cmd_sg_cnt * sizeof (void *), - GFP_KERNEL); - req->map_page = kmalloc(SRP_FMR_SIZE * sizeof (void *), - GFP_KERNEL); - req->indirect_desc = kmalloc(target->indirect_size, GFP_KERNEL); - if (!req->fmr_list || !req->map_page || !req->indirect_desc) - goto err_free_mem; - - dma_addr = ib_dma_map_single(ibdev, req->indirect_desc, - target->indirect_size, - DMA_TO_DEVICE); - if (ib_dma_mapping_error(ibdev, dma_addr)) - goto err_free_mem; - - req->indirect_dma_addr = dma_addr; - req->index = i; - list_add_tail(&req->list, &target->free_reqs); - } + ret = srp_alloc_req_data(target); + if (ret) + goto err_free_mem; ib_query_gid(ibdev, host->port, 0, &target->path.sgid); @@ -2612,7 +2895,14 @@ static void srp_remove_one(struct ib_device *device) } static struct srp_function_template ib_srp_transport_functions = { + .has_rport_state = true, + .reset_timer_if_blocked = true, + .reconnect_delay = &srp_reconnect_delay, + .fast_io_fail_tmo = &srp_fast_io_fail_tmo, + .dev_loss_tmo = &srp_dev_loss_tmo, + .reconnect = srp_rport_reconnect, .rport_delete = srp_rport_delete, + .terminate_rport_io = srp_terminate_io, }; static int __init srp_init_module(void) diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index e641088c14dc..575681063f38 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -57,14 +57,11 @@ enum { SRP_MAX_LUN = 512, SRP_DEF_SG_TABLESIZE = 12, - SRP_RQ_SHIFT = 6, - SRP_RQ_SIZE = 1 << SRP_RQ_SHIFT, - - SRP_SQ_SIZE = SRP_RQ_SIZE, + SRP_DEFAULT_QUEUE_SIZE = 1 << 6, SRP_RSP_SQ_SIZE = 1, - SRP_REQ_SQ_SIZE = SRP_SQ_SIZE - SRP_RSP_SQ_SIZE, SRP_TSK_MGMT_SQ_SIZE = 1, - SRP_CMD_SQ_SIZE = SRP_REQ_SQ_SIZE - SRP_TSK_MGMT_SQ_SIZE, + SRP_DEFAULT_CMD_SQ_SIZE = SRP_DEFAULT_QUEUE_SIZE - SRP_RSP_SQ_SIZE - + SRP_TSK_MGMT_SQ_SIZE, SRP_TAG_NO_REQ = ~0U, SRP_TAG_TSK_MGMT = 1U << 31, @@ -140,7 +137,6 @@ struct srp_target_port { unsigned int cmd_sg_cnt; unsigned int indirect_size; bool allow_ext_sg; - bool transport_offline; /* Everything above this point is used in the hot path of * command processing. Try to keep them packed into cachelines. @@ -153,10 +149,14 @@ struct srp_target_port { u16 io_class; struct srp_host *srp_host; struct Scsi_Host *scsi_host; + struct srp_rport *rport; char target_name[32]; unsigned int scsi_id; unsigned int sg_tablesize; + int queue_size; + int req_ring_size; int comp_vector; + int tl_retry_count; struct ib_sa_path_rec path; __be16 orig_dgid[8]; @@ -172,10 +172,11 @@ struct srp_target_port { int zero_req_lim; - struct srp_iu *tx_ring[SRP_SQ_SIZE]; - struct srp_iu *rx_ring[SRP_RQ_SIZE]; - struct srp_request req_ring[SRP_CMD_SQ_SIZE]; + struct srp_iu **tx_ring; + struct srp_iu **rx_ring; + struct srp_request *req_ring; + struct work_struct tl_err_work; struct work_struct remove_work; struct list_head list; diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 6c923c7039a1..520a7e5a490b 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1352,11 +1352,8 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx) /* XXX(hch): this is a horrible layering violation.. */ spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags); - ioctx->cmd.transport_state |= CMD_T_LUN_STOP; ioctx->cmd.transport_state &= ~CMD_T_ACTIVE; spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags); - - complete(&ioctx->cmd.transport_lun_stop_comp); break; case SRPT_STATE_CMD_RSP_SENT: /* @@ -1364,9 +1361,6 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx) * not been received in time. */ srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx); - spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags); - ioctx->cmd.transport_state |= CMD_T_LUN_STOP; - spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags); target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd); break; case SRPT_STATE_MGMT_RSP_SENT: @@ -1476,7 +1470,6 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch, { struct se_cmd *cmd; enum srpt_command_state state; - unsigned long flags; cmd = &ioctx->cmd; state = srpt_get_cmd_state(ioctx); @@ -1496,9 +1489,6 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch, __func__, __LINE__, state); break; case SRPT_RDMA_WRITE_LAST: - spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags); - ioctx->cmd.transport_state |= CMD_T_LUN_STOP; - spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags); break; default: printk(KERN_ERR "%s[%d]: opcode = %u\n", __func__, diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 86b822806e95..45e0e3e55de2 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -180,7 +180,10 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg) if (WARN_ON(down_interruptible(&i8042tregs))) return -1; - if (hp_sdc_enqueue_transaction(&t)) return -1; + if (hp_sdc_enqueue_transaction(&t)) { + up(&i8042tregs); + return -1; + } /* Sleep until results come back. */ if (WARN_ON(down_interruptible(&i8042tregs))) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 00d1e547b211..961d58d32647 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -906,6 +906,17 @@ config TOUCHSCREEN_STMPE To compile this driver as a module, choose M here: the module will be called stmpe-ts. +config TOUCHSCREEN_SUR40 + tristate "Samsung SUR40 (Surface 2.0/PixelSense) touchscreen" + depends on USB + select INPUT_POLLDEV + help + Say Y here if you want support for the Samsung SUR40 touchscreen + (also known as Microsoft Surface 2.0 or Microsoft PixelSense). + + To compile this driver as a module, choose M here: the + module will be called sur40. + config TOUCHSCREEN_TPS6507X tristate "TPS6507x based touchscreens" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 7587883b8d38..62801f213346 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o +obj-$(CONFIG_TOUCHSCREEN_SUR40) += sur40.o obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c index 268a35e55d7f..279c0e42b8a7 100644 --- a/drivers/input/touchscreen/atmel-wm97xx.c +++ b/drivers/input/touchscreen/atmel-wm97xx.c @@ -391,7 +391,7 @@ static int __exit atmel_wm97xx_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP -static int atmel_wm97xx_suspend(struct *dev) +static int atmel_wm97xx_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev); diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c index 42d830efa316..a035a390f8e2 100644 --- a/drivers/input/touchscreen/cyttsp4_core.c +++ b/drivers/input/touchscreen/cyttsp4_core.c @@ -1246,8 +1246,7 @@ static void cyttsp4_watchdog_timer(unsigned long handle) dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__); - if (!work_pending(&cd->watchdog_work)) - schedule_work(&cd->watchdog_work); + schedule_work(&cd->watchdog_work); return; } diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c new file mode 100644 index 000000000000..cfd1b7e8c001 --- /dev/null +++ b/drivers/input/touchscreen/sur40.c @@ -0,0 +1,466 @@ +/* + * Surface2.0/SUR40/PixelSense input driver + * + * Copyright (c) 2013 by Florian 'floe' Echtler <floe@butterbrot.org> + * + * Derived from the USB Skeleton driver 1.1, + * Copyright (c) 2003 Greg Kroah-Hartman (greg@kroah.com) + * + * and from the Apple USB BCM5974 multitouch driver, + * Copyright (c) 2008 Henrik Rydberg (rydberg@euromail.se) + * + * and from the generic hid-multitouch driver, + * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/completion.h> +#include <linux/uaccess.h> +#include <linux/usb.h> +#include <linux/printk.h> +#include <linux/input-polldev.h> +#include <linux/input/mt.h> +#include <linux/usb/input.h> + +/* read 512 bytes from endpoint 0x86 -> get header + blobs */ +struct sur40_header { + + __le16 type; /* always 0x0001 */ + __le16 count; /* count of blobs (if 0: continue prev. packet) */ + + __le32 packet_id; /* unique ID for all packets in one frame */ + + __le32 timestamp; /* milliseconds (inc. by 16 or 17 each frame) */ + __le32 unknown; /* "epoch?" always 02/03 00 00 00 */ + +} __packed; + +struct sur40_blob { + + __le16 blob_id; + + u8 action; /* 0x02 = enter/exit, 0x03 = update (?) */ + u8 unknown; /* always 0x01 or 0x02 (no idea what this is?) */ + + __le16 bb_pos_x; /* upper left corner of bounding box */ + __le16 bb_pos_y; + + __le16 bb_size_x; /* size of bounding box */ + __le16 bb_size_y; + + __le16 pos_x; /* finger tip position */ + __le16 pos_y; + + __le16 ctr_x; /* centroid position */ + __le16 ctr_y; + + __le16 axis_x; /* somehow related to major/minor axis, mostly: */ + __le16 axis_y; /* axis_x == bb_size_y && axis_y == bb_size_x */ + + __le32 angle; /* orientation in radians relative to x axis - + actually an IEEE754 float, don't use in kernel */ + + __le32 area; /* size in pixels/pressure (?) */ + + u8 padding[32]; + +} __packed; + +/* combined header/blob data */ +struct sur40_data { + struct sur40_header header; + struct sur40_blob blobs[]; +} __packed; + + +/* version information */ +#define DRIVER_SHORT "sur40" +#define DRIVER_AUTHOR "Florian 'floe' Echtler <floe@butterbrot.org>" +#define DRIVER_DESC "Surface2.0/SUR40/PixelSense input driver" + +/* vendor and device IDs */ +#define ID_MICROSOFT 0x045e +#define ID_SUR40 0x0775 + +/* sensor resolution */ +#define SENSOR_RES_X 1920 +#define SENSOR_RES_Y 1080 + +/* touch data endpoint */ +#define TOUCH_ENDPOINT 0x86 + +/* polling interval (ms) */ +#define POLL_INTERVAL 10 + +/* maximum number of contacts FIXME: this is a guess? */ +#define MAX_CONTACTS 64 + +/* control commands */ +#define SUR40_GET_VERSION 0xb0 /* 12 bytes string */ +#define SUR40_UNKNOWN1 0xb3 /* 5 bytes */ +#define SUR40_UNKNOWN2 0xc1 /* 24 bytes */ + +#define SUR40_GET_STATE 0xc5 /* 4 bytes state (?) */ +#define SUR40_GET_SENSORS 0xb1 /* 8 bytes sensors */ + +/* + * Note: an earlier, non-public version of this driver used USB_RECIP_ENDPOINT + * here by mistake which is very likely to have corrupted the firmware EEPROM + * on two separate SUR40 devices. Thanks to Alan Stern who spotted this bug. + * Should you ever run into a similar problem, the background story to this + * incident and instructions on how to fix the corrupted EEPROM are available + * at https://floe.butterbrot.org/matrix/hacking/surface/brick.html +*/ + +struct sur40_state { + + struct usb_device *usbdev; + struct device *dev; + struct input_polled_dev *input; + + struct sur40_data *bulk_in_buffer; + size_t bulk_in_size; + u8 bulk_in_epaddr; + + char phys[64]; +}; + +static int sur40_command(struct sur40_state *dev, + u8 command, u16 index, void *buffer, u16 size) +{ + return usb_control_msg(dev->usbdev, usb_rcvctrlpipe(dev->usbdev, 0), + command, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x00, index, buffer, size, 1000); +} + +/* Initialization routine, called from sur40_open */ +static int sur40_init(struct sur40_state *dev) +{ + int result; + u8 buffer[24]; + + /* stupidly replay the original MS driver init sequence */ + result = sur40_command(dev, SUR40_GET_VERSION, 0x00, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x01, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x02, buffer, 12); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_UNKNOWN2, 0x00, buffer, 24); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_UNKNOWN1, 0x00, buffer, 5); + if (result < 0) + return result; + + result = sur40_command(dev, SUR40_GET_VERSION, 0x03, buffer, 12); + + /* + * Discard the result buffer - no known data inside except + * some version strings, maybe extract these sometime... + */ + + return result; +} + +/* + * Callback routines from input_polled_dev + */ + +/* Enable the device, polling will now start. */ +static void sur40_open(struct input_polled_dev *polldev) +{ + struct sur40_state *sur40 = polldev->private; + + dev_dbg(sur40->dev, "open\n"); + sur40_init(sur40); +} + +/* Disable device, polling has stopped. */ +static void sur40_close(struct input_polled_dev *polldev) +{ + struct sur40_state *sur40 = polldev->private; + + dev_dbg(sur40->dev, "close\n"); + /* + * There is no known way to stop the device, so we simply + * stop polling. + */ +} + +/* + * This function is called when a whole contact has been processed, + * so that it can assign it to a slot and store the data there. + */ +static void sur40_report_blob(struct sur40_blob *blob, struct input_dev *input) +{ + int wide, major, minor; + + int bb_size_x = le16_to_cpu(blob->bb_size_x); + int bb_size_y = le16_to_cpu(blob->bb_size_y); + + int pos_x = le16_to_cpu(blob->pos_x); + int pos_y = le16_to_cpu(blob->pos_y); + + int ctr_x = le16_to_cpu(blob->ctr_x); + int ctr_y = le16_to_cpu(blob->ctr_y); + + int slotnum = input_mt_get_slot_by_key(input, blob->blob_id); + if (slotnum < 0 || slotnum >= MAX_CONTACTS) + return; + + input_mt_slot(input, slotnum); + input_mt_report_slot_state(input, MT_TOOL_FINGER, 1); + wide = (bb_size_x > bb_size_y); + major = max(bb_size_x, bb_size_y); + minor = min(bb_size_x, bb_size_y); + + input_report_abs(input, ABS_MT_POSITION_X, pos_x); + input_report_abs(input, ABS_MT_POSITION_Y, pos_y); + input_report_abs(input, ABS_MT_TOOL_X, ctr_x); + input_report_abs(input, ABS_MT_TOOL_Y, ctr_y); + + /* TODO: use a better orientation measure */ + input_report_abs(input, ABS_MT_ORIENTATION, wide); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, major); + input_report_abs(input, ABS_MT_TOUCH_MINOR, minor); +} + +/* core function: poll for new input data */ +static void sur40_poll(struct input_polled_dev *polldev) +{ + + struct sur40_state *sur40 = polldev->private; + struct input_dev *input = polldev->input; + int result, bulk_read, need_blobs, packet_blobs, i; + u32 packet_id; + + struct sur40_header *header = &sur40->bulk_in_buffer->header; + struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0]; + + dev_dbg(sur40->dev, "poll\n"); + + need_blobs = -1; + + do { + + /* perform a blocking bulk read to get data from the device */ + result = usb_bulk_msg(sur40->usbdev, + usb_rcvbulkpipe(sur40->usbdev, sur40->bulk_in_epaddr), + sur40->bulk_in_buffer, sur40->bulk_in_size, + &bulk_read, 1000); + + dev_dbg(sur40->dev, "received %d bytes\n", bulk_read); + + if (result < 0) { + dev_err(sur40->dev, "error in usb_bulk_read\n"); + return; + } + + result = bulk_read - sizeof(struct sur40_header); + + if (result % sizeof(struct sur40_blob) != 0) { + dev_err(sur40->dev, "transfer size mismatch\n"); + return; + } + + /* first packet? */ + if (need_blobs == -1) { + need_blobs = le16_to_cpu(header->count); + dev_dbg(sur40->dev, "need %d blobs\n", need_blobs); + packet_id = header->packet_id; + } + + /* + * Sanity check. when video data is also being retrieved, the + * packet ID will usually increase in the middle of a series + * instead of at the end. + */ + if (packet_id != header->packet_id) + dev_warn(sur40->dev, "packet ID mismatch\n"); + + packet_blobs = result / sizeof(struct sur40_blob); + dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs); + + /* packets always contain at least 4 blobs, even if empty */ + if (packet_blobs > need_blobs) + packet_blobs = need_blobs; + + for (i = 0; i < packet_blobs; i++) { + need_blobs--; + dev_dbg(sur40->dev, "processing blob\n"); + sur40_report_blob(&(inblob[i]), input); + } + + } while (need_blobs > 0); + + input_mt_sync_frame(input); + input_sync(input); +} + +/* Initialize input device parameters. */ +static void sur40_input_setup(struct input_dev *input_dev) +{ + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(EV_ABS, input_dev->evbit); + + input_set_abs_params(input_dev, ABS_MT_POSITION_X, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_POSITION_Y, + 0, SENSOR_RES_Y, 0, 0); + + input_set_abs_params(input_dev, ABS_MT_TOOL_X, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_TOOL_Y, + 0, SENSOR_RES_Y, 0, 0); + + /* max value unknown, but major/minor axis + * can never be larger than screen */ + input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, + 0, SENSOR_RES_X, 0, 0); + input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, + 0, SENSOR_RES_Y, 0, 0); + + input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0); + + input_mt_init_slots(input_dev, MAX_CONTACTS, + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); +} + +/* Check candidate USB interface. */ +static int sur40_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *usbdev = interface_to_usbdev(interface); + struct sur40_state *sur40; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + struct input_polled_dev *poll_dev; + int error; + + /* Check if we really have the right interface. */ + iface_desc = &interface->altsetting[0]; + if (iface_desc->desc.bInterfaceClass != 0xFF) + return -ENODEV; + + /* Use endpoint #4 (0x86). */ + endpoint = &iface_desc->endpoint[4].desc; + if (endpoint->bEndpointAddress != TOUCH_ENDPOINT) + return -ENODEV; + + /* Allocate memory for our device state and initialize it. */ + sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL); + if (!sur40) + return -ENOMEM; + + poll_dev = input_allocate_polled_device(); + if (!poll_dev) { + error = -ENOMEM; + goto err_free_dev; + } + + /* Set up polled input device control structure */ + poll_dev->private = sur40; + poll_dev->poll_interval = POLL_INTERVAL; + poll_dev->open = sur40_open; + poll_dev->poll = sur40_poll; + poll_dev->close = sur40_close; + + /* Set up regular input device structure */ + sur40_input_setup(poll_dev->input); + + poll_dev->input->name = "Samsung SUR40"; + usb_to_input_id(usbdev, &poll_dev->input->id); + usb_make_path(usbdev, sur40->phys, sizeof(sur40->phys)); + strlcat(sur40->phys, "/input0", sizeof(sur40->phys)); + poll_dev->input->phys = sur40->phys; + poll_dev->input->dev.parent = &interface->dev; + + sur40->usbdev = usbdev; + sur40->dev = &interface->dev; + sur40->input = poll_dev; + + /* use the bulk-in endpoint tested above */ + sur40->bulk_in_size = usb_endpoint_maxp(endpoint); + sur40->bulk_in_epaddr = endpoint->bEndpointAddress; + sur40->bulk_in_buffer = kmalloc(sur40->bulk_in_size, GFP_KERNEL); + if (!sur40->bulk_in_buffer) { + dev_err(&interface->dev, "Unable to allocate input buffer."); + error = -ENOMEM; + goto err_free_polldev; + } + + error = input_register_polled_device(poll_dev); + if (error) { + dev_err(&interface->dev, + "Unable to register polled input device."); + goto err_free_buffer; + } + + /* we can register the device now, as it is ready */ + usb_set_intfdata(interface, sur40); + dev_dbg(&interface->dev, "%s is now attached\n", DRIVER_DESC); + + return 0; + +err_free_buffer: + kfree(sur40->bulk_in_buffer); +err_free_polldev: + input_free_polled_device(sur40->input); +err_free_dev: + kfree(sur40); + + return error; +} + +/* Unregister device & clean up. */ +static void sur40_disconnect(struct usb_interface *interface) +{ + struct sur40_state *sur40 = usb_get_intfdata(interface); + + input_unregister_polled_device(sur40->input); + input_free_polled_device(sur40->input); + kfree(sur40->bulk_in_buffer); + kfree(sur40); + + usb_set_intfdata(interface, NULL); + dev_dbg(&interface->dev, "%s is now disconnected\n", DRIVER_DESC); +} + +static const struct usb_device_id sur40_table[] = { + { USB_DEVICE(ID_MICROSOFT, ID_SUR40) }, /* Samsung SUR40 */ + { } /* terminating null entry */ +}; +MODULE_DEVICE_TABLE(usb, sur40_table); + +/* USB-specific object needed to register this driver with the USB subsystem. */ +static struct usb_driver sur40_driver = { + .name = DRIVER_SHORT, + .probe = sur40_probe, + .disconnect = sur40_disconnect, + .id_table = sur40_table, +}; + +module_usb_driver(sur40_driver); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 9fd51e51e78b..3e7fdbb4916b 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -206,7 +206,7 @@ config SHMOBILE_IPMMU_TLB config SHMOBILE_IOMMU bool "IOMMU for Renesas IPMMU/IPMMUI" default n - depends on ARM || COMPILE_TEST + depends on ARM select IOMMU_API select ARM_DMA_USE_IOMMU select SHMOBILE_IPMMU diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c index baf2686aa8eb..02125e6a9109 100644 --- a/drivers/isdn/isdnloop/isdnloop.c +++ b/drivers/isdn/isdnloop/isdnloop.c @@ -1083,8 +1083,10 @@ isdnloop_start(isdnloop_card *card, isdnloop_sdef *sdefp) spin_unlock_irqrestore(&card->isdnloop_lock, flags); return -ENOMEM; } - for (i = 0; i < 3; i++) - strcpy(card->s0num[i], sdef.num[i]); + for (i = 0; i < 3; i++) { + strlcpy(card->s0num[i], sdef.num[i], + sizeof(card->s0num[0])); + } break; case ISDN_PTYPE_1TR6: if (isdnloop_fake(card, "DRV1.04TC-1TR6-CAPI-CNS-BASIS-29.11.95", @@ -1097,7 +1099,7 @@ isdnloop_start(isdnloop_card *card, isdnloop_sdef *sdefp) spin_unlock_irqrestore(&card->isdnloop_lock, flags); return -ENOMEM; } - strcpy(card->s0num[0], sdef.num[0]); + strlcpy(card->s0num[0], sdef.num[0], sizeof(card->s0num[0])); card->s0num[1][0] = '\0'; card->s0num[2][0] = '\0'; break; diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index e47dcb9d1e91..5cefb479c707 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -117,7 +117,6 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock, { struct sk_buff *skb; struct sock *sk = sock->sk; - struct sockaddr_mISDN *maddr; int copied, err; @@ -135,9 +134,9 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock, if (!skb) return err; - if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) { - msg->msg_namelen = sizeof(struct sockaddr_mISDN); - maddr = (struct sockaddr_mISDN *)msg->msg_name; + if (msg->msg_name) { + struct sockaddr_mISDN *maddr = msg->msg_name; + maddr->family = AF_ISDN; maddr->dev = _pms(sk)->dev->id; if ((sk->sk_protocol == ISDN_P_LAPD_TE) || @@ -150,11 +149,7 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock, maddr->sapi = _pms(sk)->ch.addr & 0xFF; maddr->tei = (_pms(sk)->ch.addr >> 8) & 0xFF; } - } else { - if (msg->msg_namelen) - printk(KERN_WARNING "%s: too small namelen %d\n", - __func__, msg->msg_namelen); - msg->msg_namelen = 0; + msg->msg_namelen = sizeof(*maddr); } copied = skb->len + MISDN_HEADER_LEN; diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile index 6753b65f8ede..d2f0120bc878 100644 --- a/drivers/macintosh/Makefile +++ b/drivers/macintosh/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_WINDFARM_RM31) += windfarm_fcu_controls.o \ windfarm_ad7417_sensor.o \ windfarm_lm75_sensor.o \ windfarm_lm87_sensor.o \ + windfarm_max6690_sensor.o \ windfarm_pid.o \ windfarm_cpufreq_clamp.o \ windfarm_rm31.o diff --git a/drivers/md/md.c b/drivers/md/md.c index 8766eabb0014..b6b7a2866c9e 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -112,7 +112,7 @@ static inline int speed_max(struct mddev *mddev) static struct ctl_table_header *raid_table_header; -static ctl_table raid_table[] = { +static struct ctl_table raid_table[] = { { .procname = "speed_limit_min", .data = &sysctl_speed_limit_min, @@ -130,7 +130,7 @@ static ctl_table raid_table[] = { { } }; -static ctl_table raid_dir_table[] = { +static struct ctl_table raid_dir_table[] = { { .procname = "raid", .maxlen = 0, @@ -140,7 +140,7 @@ static ctl_table raid_dir_table[] = { { } }; -static ctl_table raid_root_table[] = { +static struct ctl_table raid_root_table[] = { { .procname = "dev", .maxlen = 0, @@ -562,11 +562,19 @@ static struct mddev * mddev_find(dev_t unit) goto retry; } -static inline int mddev_lock(struct mddev * mddev) +static inline int __must_check mddev_lock(struct mddev * mddev) { return mutex_lock_interruptible(&mddev->reconfig_mutex); } +/* Sometimes we need to take the lock in a situation where + * failure due to interrupts is not acceptable. + */ +static inline void mddev_lock_nointr(struct mddev * mddev) +{ + mutex_lock(&mddev->reconfig_mutex); +} + static inline int mddev_is_locked(struct mddev *mddev) { return mutex_is_locked(&mddev->reconfig_mutex); @@ -2978,7 +2986,7 @@ rdev_size_store(struct md_rdev *rdev, const char *buf, size_t len) for_each_mddev(mddev, tmp) { struct md_rdev *rdev2; - mddev_lock(mddev); + mddev_lock_nointr(mddev); rdev_for_each(rdev2, mddev) if (rdev->bdev == rdev2->bdev && rdev != rdev2 && @@ -2994,7 +3002,7 @@ rdev_size_store(struct md_rdev *rdev, const char *buf, size_t len) break; } } - mddev_lock(my_mddev); + mddev_lock_nointr(my_mddev); if (overlap) { /* Someone else could have slipped in a size * change here, but doing so is just silly. @@ -3580,6 +3588,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len) mddev->in_sync = 1; del_timer_sync(&mddev->safemode_timer); } + blk_set_stacking_limits(&mddev->queue->limits); pers->run(mddev); set_bit(MD_CHANGE_DEVS, &mddev->flags); mddev_resume(mddev); @@ -5258,7 +5267,7 @@ static void __md_stop_writes(struct mddev *mddev) void md_stop_writes(struct mddev *mddev) { - mddev_lock(mddev); + mddev_lock_nointr(mddev); __md_stop_writes(mddev); mddev_unlock(mddev); } @@ -5291,20 +5300,35 @@ EXPORT_SYMBOL_GPL(md_stop); static int md_set_readonly(struct mddev *mddev, struct block_device *bdev) { int err = 0; + int did_freeze = 0; + + if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) { + did_freeze = 1; + set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + md_wakeup_thread(mddev->thread); + } + if (mddev->sync_thread) { + set_bit(MD_RECOVERY_INTR, &mddev->recovery); + /* Thread might be blocked waiting for metadata update + * which will now never happen */ + wake_up_process(mddev->sync_thread->tsk); + } + mddev_unlock(mddev); + wait_event(resync_wait, mddev->sync_thread == NULL); + mddev_lock_nointr(mddev); + mutex_lock(&mddev->open_mutex); - if (atomic_read(&mddev->openers) > !!bdev) { + if (atomic_read(&mddev->openers) > !!bdev || + mddev->sync_thread || + (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags))) { printk("md: %s still in use.\n",mdname(mddev)); + if (did_freeze) { + clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + md_wakeup_thread(mddev->thread); + } err = -EBUSY; goto out; } - if (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags)) { - /* Someone opened the device since we flushed it - * so page cache could be dirty and it is too late - * to flush. So abort - */ - mutex_unlock(&mddev->open_mutex); - return -EBUSY; - } if (mddev->pers) { __md_stop_writes(mddev); @@ -5315,7 +5339,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev) set_disk_ro(mddev->gendisk, 1); clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); sysfs_notify_dirent_safe(mddev->sysfs_state); - err = 0; + err = 0; } out: mutex_unlock(&mddev->open_mutex); @@ -5331,20 +5355,34 @@ static int do_md_stop(struct mddev * mddev, int mode, { struct gendisk *disk = mddev->gendisk; struct md_rdev *rdev; + int did_freeze = 0; + + if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) { + did_freeze = 1; + set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + md_wakeup_thread(mddev->thread); + } + if (mddev->sync_thread) { + set_bit(MD_RECOVERY_INTR, &mddev->recovery); + /* Thread might be blocked waiting for metadata update + * which will now never happen */ + wake_up_process(mddev->sync_thread->tsk); + } + mddev_unlock(mddev); + wait_event(resync_wait, mddev->sync_thread == NULL); + mddev_lock_nointr(mddev); mutex_lock(&mddev->open_mutex); if (atomic_read(&mddev->openers) > !!bdev || - mddev->sysfs_active) { + mddev->sysfs_active || + mddev->sync_thread || + (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags))) { printk("md: %s still in use.\n",mdname(mddev)); mutex_unlock(&mddev->open_mutex); - return -EBUSY; - } - if (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags)) { - /* Someone opened the device since we flushed it - * so page cache could be dirty and it is too late - * to flush. So abort - */ - mutex_unlock(&mddev->open_mutex); + if (did_freeze) { + clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + md_wakeup_thread(mddev->thread); + } return -EBUSY; } if (mddev->pers) { @@ -6551,7 +6589,7 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode, wait_event(mddev->sb_wait, !test_bit(MD_CHANGE_DEVS, &mddev->flags) && !test_bit(MD_CHANGE_PENDING, &mddev->flags)); - mddev_lock(mddev); + mddev_lock_nointr(mddev); } } else { err = -EROFS; @@ -7361,9 +7399,6 @@ void md_do_sync(struct md_thread *thread) mddev->curr_resync = 2; try_again: - if (kthread_should_stop()) - set_bit(MD_RECOVERY_INTR, &mddev->recovery); - if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) goto skip; for_each_mddev(mddev2, tmp) { @@ -7388,7 +7423,7 @@ void md_do_sync(struct md_thread *thread) * be caught by 'softlockup' */ prepare_to_wait(&resync_wait, &wq, TASK_INTERRUPTIBLE); - if (!kthread_should_stop() && + if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) && mddev2->curr_resync >= mddev->curr_resync) { printk(KERN_INFO "md: delaying %s of %s" " until %s has finished (they" @@ -7464,7 +7499,7 @@ void md_do_sync(struct md_thread *thread) last_check = 0; if (j>2) { - printk(KERN_INFO + printk(KERN_INFO "md: resuming %s of %s from checkpoint.\n", desc, mdname(mddev)); mddev->curr_resync = j; @@ -7501,7 +7536,8 @@ void md_do_sync(struct md_thread *thread) sysfs_notify(&mddev->kobj, NULL, "sync_completed"); } - while (j >= mddev->resync_max && !kthread_should_stop()) { + while (j >= mddev->resync_max && + !test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { /* As this condition is controlled by user-space, * we can block indefinitely, so use '_interruptible' * to avoid triggering warnings. @@ -7509,17 +7545,18 @@ void md_do_sync(struct md_thread *thread) flush_signals(current); /* just in case */ wait_event_interruptible(mddev->recovery_wait, mddev->resync_max > j - || kthread_should_stop()); + || test_bit(MD_RECOVERY_INTR, + &mddev->recovery)); } - if (kthread_should_stop()) - goto interrupted; + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) + break; sectors = mddev->pers->sync_request(mddev, j, &skipped, currspeed < speed_min(mddev)); if (sectors == 0) { set_bit(MD_RECOVERY_INTR, &mddev->recovery); - goto out; + break; } if (!skipped) { /* actual IO requested */ @@ -7556,10 +7593,8 @@ void md_do_sync(struct md_thread *thread) last_mark = next; } - - if (kthread_should_stop()) - goto interrupted; - + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) + break; /* * this loop exits only if either when we are slower than @@ -7582,11 +7617,12 @@ void md_do_sync(struct md_thread *thread) } } } - printk(KERN_INFO "md: %s: %s done.\n",mdname(mddev), desc); + printk(KERN_INFO "md: %s: %s %s.\n",mdname(mddev), desc, + test_bit(MD_RECOVERY_INTR, &mddev->recovery) + ? "interrupted" : "done"); /* * this also signals 'finished resyncing' to md_stop */ - out: blk_finish_plug(&plug); wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active)); @@ -7640,16 +7676,6 @@ void md_do_sync(struct md_thread *thread) set_bit(MD_RECOVERY_DONE, &mddev->recovery); md_wakeup_thread(mddev->thread); return; - - interrupted: - /* - * got a signal, exit. - */ - printk(KERN_INFO - "md: md_do_sync() got signal ... exiting\n"); - set_bit(MD_RECOVERY_INTR, &mddev->recovery); - goto out; - } EXPORT_SYMBOL_GPL(md_do_sync); @@ -7894,6 +7920,7 @@ void md_reap_sync_thread(struct mddev *mddev) /* resync has finished, collect result */ md_unregister_thread(&mddev->sync_thread); + wake_up(&resync_wait); if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) { /* success...*/ diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index af6681b19776..1e5a540995e9 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -66,7 +66,8 @@ */ static int max_queued_requests = 1024; -static void allow_barrier(struct r1conf *conf); +static void allow_barrier(struct r1conf *conf, sector_t start_next_window, + sector_t bi_sector); static void lower_barrier(struct r1conf *conf); static void * r1bio_pool_alloc(gfp_t gfp_flags, void *data) @@ -84,10 +85,12 @@ static void r1bio_pool_free(void *r1_bio, void *data) } #define RESYNC_BLOCK_SIZE (64*1024) -//#define RESYNC_BLOCK_SIZE PAGE_SIZE +#define RESYNC_DEPTH 32 #define RESYNC_SECTORS (RESYNC_BLOCK_SIZE >> 9) #define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE) -#define RESYNC_WINDOW (2048*1024) +#define RESYNC_WINDOW (RESYNC_BLOCK_SIZE * RESYNC_DEPTH) +#define RESYNC_WINDOW_SECTORS (RESYNC_WINDOW >> 9) +#define NEXT_NORMALIO_DISTANCE (3 * RESYNC_WINDOW_SECTORS) static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data) { @@ -225,6 +228,8 @@ static void call_bio_endio(struct r1bio *r1_bio) struct bio *bio = r1_bio->master_bio; int done; struct r1conf *conf = r1_bio->mddev->private; + sector_t start_next_window = r1_bio->start_next_window; + sector_t bi_sector = bio->bi_sector; if (bio->bi_phys_segments) { unsigned long flags; @@ -232,6 +237,11 @@ static void call_bio_endio(struct r1bio *r1_bio) bio->bi_phys_segments--; done = (bio->bi_phys_segments == 0); spin_unlock_irqrestore(&conf->device_lock, flags); + /* + * make_request() might be waiting for + * bi_phys_segments to decrease + */ + wake_up(&conf->wait_barrier); } else done = 1; @@ -243,7 +253,7 @@ static void call_bio_endio(struct r1bio *r1_bio) * Wake up any possible resync thread that waits for the device * to go idle. */ - allow_barrier(conf); + allow_barrier(conf, start_next_window, bi_sector); } } @@ -814,8 +824,6 @@ static void flush_pending_writes(struct r1conf *conf) * there is no normal IO happeing. It must arrange to call * lower_barrier when the particular background IO completes. */ -#define RESYNC_DEPTH 32 - static void raise_barrier(struct r1conf *conf) { spin_lock_irq(&conf->resync_lock); @@ -827,9 +835,19 @@ static void raise_barrier(struct r1conf *conf) /* block any new IO from starting */ conf->barrier++; - /* Now wait for all pending IO to complete */ + /* For these conditions we must wait: + * A: while the array is in frozen state + * B: while barrier >= RESYNC_DEPTH, meaning resync reach + * the max count which allowed. + * C: next_resync + RESYNC_SECTORS > start_next_window, meaning + * next resync will reach to the window which normal bios are + * handling. + */ wait_event_lock_irq(conf->wait_barrier, - !conf->nr_pending && conf->barrier < RESYNC_DEPTH, + !conf->array_frozen && + conf->barrier < RESYNC_DEPTH && + (conf->start_next_window >= + conf->next_resync + RESYNC_SECTORS), conf->resync_lock); spin_unlock_irq(&conf->resync_lock); @@ -845,10 +863,33 @@ static void lower_barrier(struct r1conf *conf) wake_up(&conf->wait_barrier); } -static void wait_barrier(struct r1conf *conf) +static bool need_to_wait_for_sync(struct r1conf *conf, struct bio *bio) { + bool wait = false; + + if (conf->array_frozen || !bio) + wait = true; + else if (conf->barrier && bio_data_dir(bio) == WRITE) { + if (conf->next_resync < RESYNC_WINDOW_SECTORS) + wait = true; + else if ((conf->next_resync - RESYNC_WINDOW_SECTORS + >= bio_end_sector(bio)) || + (conf->next_resync + NEXT_NORMALIO_DISTANCE + <= bio->bi_sector)) + wait = false; + else + wait = true; + } + + return wait; +} + +static sector_t wait_barrier(struct r1conf *conf, struct bio *bio) +{ + sector_t sector = 0; + spin_lock_irq(&conf->resync_lock); - if (conf->barrier) { + if (need_to_wait_for_sync(conf, bio)) { conf->nr_waiting++; /* Wait for the barrier to drop. * However if there are already pending @@ -860,22 +901,67 @@ static void wait_barrier(struct r1conf *conf) * count down. */ wait_event_lock_irq(conf->wait_barrier, - !conf->barrier || - (conf->nr_pending && + !conf->array_frozen && + (!conf->barrier || + ((conf->start_next_window < + conf->next_resync + RESYNC_SECTORS) && current->bio_list && - !bio_list_empty(current->bio_list)), + !bio_list_empty(current->bio_list))), conf->resync_lock); conf->nr_waiting--; } + + if (bio && bio_data_dir(bio) == WRITE) { + if (conf->next_resync + NEXT_NORMALIO_DISTANCE + <= bio->bi_sector) { + if (conf->start_next_window == MaxSector) + conf->start_next_window = + conf->next_resync + + NEXT_NORMALIO_DISTANCE; + + if ((conf->start_next_window + NEXT_NORMALIO_DISTANCE) + <= bio->bi_sector) + conf->next_window_requests++; + else + conf->current_window_requests++; + } + if (bio->bi_sector >= conf->start_next_window) + sector = conf->start_next_window; + } + conf->nr_pending++; spin_unlock_irq(&conf->resync_lock); + return sector; } -static void allow_barrier(struct r1conf *conf) +static void allow_barrier(struct r1conf *conf, sector_t start_next_window, + sector_t bi_sector) { unsigned long flags; + spin_lock_irqsave(&conf->resync_lock, flags); conf->nr_pending--; + if (start_next_window) { + if (start_next_window == conf->start_next_window) { + if (conf->start_next_window + NEXT_NORMALIO_DISTANCE + <= bi_sector) + conf->next_window_requests--; + else + conf->current_window_requests--; + } else + conf->current_window_requests--; + + if (!conf->current_window_requests) { + if (conf->next_window_requests) { + conf->current_window_requests = + conf->next_window_requests; + conf->next_window_requests = 0; + conf->start_next_window += + NEXT_NORMALIO_DISTANCE; + } else + conf->start_next_window = MaxSector; + } + } spin_unlock_irqrestore(&conf->resync_lock, flags); wake_up(&conf->wait_barrier); } @@ -884,8 +970,7 @@ static void freeze_array(struct r1conf *conf, int extra) { /* stop syncio and normal IO and wait for everything to * go quite. - * We increment barrier and nr_waiting, and then - * wait until nr_pending match nr_queued+extra + * We wait until nr_pending match nr_queued+extra * This is called in the context of one normal IO request * that has failed. Thus any sync request that might be pending * will be blocked by nr_pending, and we need to wait for @@ -895,8 +980,7 @@ static void freeze_array(struct r1conf *conf, int extra) * we continue. */ spin_lock_irq(&conf->resync_lock); - conf->barrier++; - conf->nr_waiting++; + conf->array_frozen = 1; wait_event_lock_irq_cmd(conf->wait_barrier, conf->nr_pending == conf->nr_queued+extra, conf->resync_lock, @@ -907,8 +991,7 @@ static void unfreeze_array(struct r1conf *conf) { /* reverse the effect of the freeze */ spin_lock_irq(&conf->resync_lock); - conf->barrier--; - conf->nr_waiting--; + conf->array_frozen = 0; wake_up(&conf->wait_barrier); spin_unlock_irq(&conf->resync_lock); } @@ -1013,6 +1096,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) int first_clone; int sectors_handled; int max_sectors; + sector_t start_next_window; /* * Register the new request and wait if the reconstruction @@ -1042,7 +1126,7 @@ static void make_request(struct mddev *mddev, struct bio * bio) finish_wait(&conf->wait_barrier, &w); } - wait_barrier(conf); + start_next_window = wait_barrier(conf, bio); bitmap = mddev->bitmap; @@ -1163,6 +1247,7 @@ read_again: disks = conf->raid_disks * 2; retry_write: + r1_bio->start_next_window = start_next_window; blocked_rdev = NULL; rcu_read_lock(); max_sectors = r1_bio->sectors; @@ -1231,14 +1316,24 @@ read_again: if (unlikely(blocked_rdev)) { /* Wait for this device to become unblocked */ int j; + sector_t old = start_next_window; for (j = 0; j < i; j++) if (r1_bio->bios[j]) rdev_dec_pending(conf->mirrors[j].rdev, mddev); r1_bio->state = 0; - allow_barrier(conf); + allow_barrier(conf, start_next_window, bio->bi_sector); md_wait_for_blocked_rdev(blocked_rdev, mddev); - wait_barrier(conf); + start_next_window = wait_barrier(conf, bio); + /* + * We must make sure the multi r1bios of bio have + * the same value of bi_phys_segments + */ + if (bio->bi_phys_segments && old && + old != start_next_window) + /* Wait for the former r1bio(s) to complete */ + wait_event(conf->wait_barrier, + bio->bi_phys_segments == 1); goto retry_write; } @@ -1438,11 +1533,14 @@ static void print_conf(struct r1conf *conf) static void close_sync(struct r1conf *conf) { - wait_barrier(conf); - allow_barrier(conf); + wait_barrier(conf, NULL); + allow_barrier(conf, 0, 0); mempool_destroy(conf->r1buf_pool); conf->r1buf_pool = NULL; + + conf->next_resync = 0; + conf->start_next_window = MaxSector; } static int raid1_spare_active(struct mddev *mddev) @@ -2714,6 +2812,9 @@ static struct r1conf *setup_conf(struct mddev *mddev) conf->pending_count = 0; conf->recovery_disabled = mddev->recovery_disabled - 1; + conf->start_next_window = MaxSector; + conf->current_window_requests = conf->next_window_requests = 0; + err = -EIO; for (i = 0; i < conf->raid_disks * 2; i++) { @@ -2871,8 +2972,8 @@ static int stop(struct mddev *mddev) atomic_read(&bitmap->behind_writes) == 0); } - raise_barrier(conf); - lower_barrier(conf); + freeze_array(conf, 0); + unfreeze_array(conf); md_unregister_thread(&mddev->thread); if (conf->r1bio_pool) @@ -3031,10 +3132,10 @@ static void raid1_quiesce(struct mddev *mddev, int state) wake_up(&conf->wait_barrier); break; case 1: - raise_barrier(conf); + freeze_array(conf, 0); break; case 0: - lower_barrier(conf); + unfreeze_array(conf); break; } } @@ -3051,7 +3152,8 @@ static void *raid1_takeover(struct mddev *mddev) mddev->new_chunk_sectors = 0; conf = setup_conf(mddev); if (!IS_ERR(conf)) - conf->barrier = 1; + /* Array must appear to be quiesced */ + conf->array_frozen = 1; return conf; } return ERR_PTR(-EINVAL); diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index 0ff3715fb7eb..9bebca7bff2f 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -41,6 +41,19 @@ struct r1conf { */ sector_t next_resync; + /* When raid1 starts resync, we divide array into four partitions + * |---------|--------------|---------------------|-------------| + * next_resync start_next_window end_window + * start_next_window = next_resync + NEXT_NORMALIO_DISTANCE + * end_window = start_next_window + NEXT_NORMALIO_DISTANCE + * current_window_requests means the count of normalIO between + * start_next_window and end_window. + * next_window_requests means the count of normalIO after end_window. + * */ + sector_t start_next_window; + int current_window_requests; + int next_window_requests; + spinlock_t device_lock; /* list of 'struct r1bio' that need to be processed by raid1d, @@ -65,6 +78,7 @@ struct r1conf { int nr_waiting; int nr_queued; int barrier; + int array_frozen; /* Set to 1 if a full sync is needed, (fresh device added). * Cleared when a sync completes. @@ -111,6 +125,7 @@ struct r1bio { * in this BehindIO request */ sector_t sector; + sector_t start_next_window; int sectors; unsigned long state; struct mddev *mddev; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 7c3508abb5e1..c504e8389e69 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4384,7 +4384,11 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, set_bit(MD_CHANGE_DEVS, &mddev->flags); md_wakeup_thread(mddev->thread); wait_event(mddev->sb_wait, mddev->flags == 0 || - kthread_should_stop()); + test_bit(MD_RECOVERY_INTR, &mddev->recovery)); + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) { + allow_barrier(conf); + return sectors_done; + } conf->reshape_safe = mddev->reshape_position; allow_barrier(conf); } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7f0e17a27aeb..47da0af6322b 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -85,6 +85,42 @@ static inline struct hlist_head *stripe_hash(struct r5conf *conf, sector_t sect) return &conf->stripe_hashtbl[hash]; } +static inline int stripe_hash_locks_hash(sector_t sect) +{ + return (sect >> STRIPE_SHIFT) & STRIPE_HASH_LOCKS_MASK; +} + +static inline void lock_device_hash_lock(struct r5conf *conf, int hash) +{ + spin_lock_irq(conf->hash_locks + hash); + spin_lock(&conf->device_lock); +} + +static inline void unlock_device_hash_lock(struct r5conf *conf, int hash) +{ + spin_unlock(&conf->device_lock); + spin_unlock_irq(conf->hash_locks + hash); +} + +static inline void lock_all_device_hash_locks_irq(struct r5conf *conf) +{ + int i; + local_irq_disable(); + spin_lock(conf->hash_locks); + for (i = 1; i < NR_STRIPE_HASH_LOCKS; i++) + spin_lock_nest_lock(conf->hash_locks + i, conf->hash_locks); + spin_lock(&conf->device_lock); +} + +static inline void unlock_all_device_hash_locks_irq(struct r5conf *conf) +{ + int i; + spin_unlock(&conf->device_lock); + for (i = NR_STRIPE_HASH_LOCKS; i; i--) + spin_unlock(conf->hash_locks + i - 1); + local_irq_enable(); +} + /* bio's attached to a stripe+device for I/O are linked together in bi_sector * order without overlap. There may be several bio's per stripe+device, and * a bio could span several devices. @@ -249,7 +285,8 @@ static void raid5_wakeup_stripe_thread(struct stripe_head *sh) } } -static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh) +static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh, + struct list_head *temp_inactive_list) { BUG_ON(!list_empty(&sh->lru)); BUG_ON(atomic_read(&conf->active_stripes)==0); @@ -278,23 +315,68 @@ static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh) < IO_THRESHOLD) md_wakeup_thread(conf->mddev->thread); atomic_dec(&conf->active_stripes); - if (!test_bit(STRIPE_EXPANDING, &sh->state)) { - list_add_tail(&sh->lru, &conf->inactive_list); - wake_up(&conf->wait_for_stripe); - if (conf->retry_read_aligned) - md_wakeup_thread(conf->mddev->thread); - } + if (!test_bit(STRIPE_EXPANDING, &sh->state)) + list_add_tail(&sh->lru, temp_inactive_list); } } -static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) +static void __release_stripe(struct r5conf *conf, struct stripe_head *sh, + struct list_head *temp_inactive_list) { if (atomic_dec_and_test(&sh->count)) - do_release_stripe(conf, sh); + do_release_stripe(conf, sh, temp_inactive_list); +} + +/* + * @hash could be NR_STRIPE_HASH_LOCKS, then we have a list of inactive_list + * + * Be careful: Only one task can add/delete stripes from temp_inactive_list at + * given time. Adding stripes only takes device lock, while deleting stripes + * only takes hash lock. + */ +static void release_inactive_stripe_list(struct r5conf *conf, + struct list_head *temp_inactive_list, + int hash) +{ + int size; + bool do_wakeup = false; + unsigned long flags; + + if (hash == NR_STRIPE_HASH_LOCKS) { + size = NR_STRIPE_HASH_LOCKS; + hash = NR_STRIPE_HASH_LOCKS - 1; + } else + size = 1; + while (size) { + struct list_head *list = &temp_inactive_list[size - 1]; + + /* + * We don't hold any lock here yet, get_active_stripe() might + * remove stripes from the list + */ + if (!list_empty_careful(list)) { + spin_lock_irqsave(conf->hash_locks + hash, flags); + if (list_empty(conf->inactive_list + hash) && + !list_empty(list)) + atomic_dec(&conf->empty_inactive_list_nr); + list_splice_tail_init(list, conf->inactive_list + hash); + do_wakeup = true; + spin_unlock_irqrestore(conf->hash_locks + hash, flags); + } + size--; + hash--; + } + + if (do_wakeup) { + wake_up(&conf->wait_for_stripe); + if (conf->retry_read_aligned) + md_wakeup_thread(conf->mddev->thread); + } } /* should hold conf->device_lock already */ -static int release_stripe_list(struct r5conf *conf) +static int release_stripe_list(struct r5conf *conf, + struct list_head *temp_inactive_list) { struct stripe_head *sh; int count = 0; @@ -303,6 +385,8 @@ static int release_stripe_list(struct r5conf *conf) head = llist_del_all(&conf->released_stripes); head = llist_reverse_order(head); while (head) { + int hash; + sh = llist_entry(head, struct stripe_head, release_list); head = llist_next(head); /* sh could be readded after STRIPE_ON_RELEASE_LIST is cleard */ @@ -313,7 +397,8 @@ static int release_stripe_list(struct r5conf *conf) * again, the count is always > 1. This is true for * STRIPE_ON_UNPLUG_LIST bit too. */ - __release_stripe(conf, sh); + hash = sh->hash_lock_index; + __release_stripe(conf, sh, &temp_inactive_list[hash]); count++; } @@ -324,9 +409,12 @@ static void release_stripe(struct stripe_head *sh) { struct r5conf *conf = sh->raid_conf; unsigned long flags; + struct list_head list; + int hash; bool wakeup; - if (test_and_set_bit(STRIPE_ON_RELEASE_LIST, &sh->state)) + if (unlikely(!conf->mddev->thread) || + test_and_set_bit(STRIPE_ON_RELEASE_LIST, &sh->state)) goto slow_path; wakeup = llist_add(&sh->release_list, &conf->released_stripes); if (wakeup) @@ -336,8 +424,11 @@ slow_path: local_irq_save(flags); /* we are ok here if STRIPE_ON_RELEASE_LIST is set or not */ if (atomic_dec_and_lock(&sh->count, &conf->device_lock)) { - do_release_stripe(conf, sh); + INIT_LIST_HEAD(&list); + hash = sh->hash_lock_index; + do_release_stripe(conf, sh, &list); spin_unlock(&conf->device_lock); + release_inactive_stripe_list(conf, &list, hash); } local_irq_restore(flags); } @@ -362,18 +453,21 @@ static inline void insert_hash(struct r5conf *conf, struct stripe_head *sh) /* find an idle stripe, make sure it is unhashed, and return it. */ -static struct stripe_head *get_free_stripe(struct r5conf *conf) +static struct stripe_head *get_free_stripe(struct r5conf *conf, int hash) { struct stripe_head *sh = NULL; struct list_head *first; - if (list_empty(&conf->inactive_list)) + if (list_empty(conf->inactive_list + hash)) goto out; - first = conf->inactive_list.next; + first = (conf->inactive_list + hash)->next; sh = list_entry(first, struct stripe_head, lru); list_del_init(first); remove_hash(sh); atomic_inc(&conf->active_stripes); + BUG_ON(hash != sh->hash_lock_index); + if (list_empty(conf->inactive_list + hash)) + atomic_inc(&conf->empty_inactive_list_nr); out: return sh; } @@ -416,7 +510,7 @@ static void stripe_set_idx(sector_t stripe, struct r5conf *conf, int previous, static void init_stripe(struct stripe_head *sh, sector_t sector, int previous) { struct r5conf *conf = sh->raid_conf; - int i; + int i, seq; BUG_ON(atomic_read(&sh->count) != 0); BUG_ON(test_bit(STRIPE_HANDLE, &sh->state)); @@ -426,7 +520,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int previous) (unsigned long long)sh->sector); remove_hash(sh); - +retry: + seq = read_seqcount_begin(&conf->gen_lock); sh->generation = conf->generation - previous; sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks; sh->sector = sector; @@ -448,6 +543,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int previous) dev->flags = 0; raid5_build_block(sh, i, previous); } + if (read_seqcount_retry(&conf->gen_lock, seq)) + goto retry; insert_hash(conf, sh); sh->cpu = smp_processor_id(); } @@ -552,29 +649,31 @@ get_active_stripe(struct r5conf *conf, sector_t sector, int previous, int noblock, int noquiesce) { struct stripe_head *sh; + int hash = stripe_hash_locks_hash(sector); pr_debug("get_stripe, sector %llu\n", (unsigned long long)sector); - spin_lock_irq(&conf->device_lock); + spin_lock_irq(conf->hash_locks + hash); do { wait_event_lock_irq(conf->wait_for_stripe, conf->quiesce == 0 || noquiesce, - conf->device_lock); + *(conf->hash_locks + hash)); sh = __find_stripe(conf, sector, conf->generation - previous); if (!sh) { if (!conf->inactive_blocked) - sh = get_free_stripe(conf); + sh = get_free_stripe(conf, hash); if (noblock && sh == NULL) break; if (!sh) { conf->inactive_blocked = 1; - wait_event_lock_irq(conf->wait_for_stripe, - !list_empty(&conf->inactive_list) && - (atomic_read(&conf->active_stripes) - < (conf->max_nr_stripes *3/4) - || !conf->inactive_blocked), - conf->device_lock); + wait_event_lock_irq( + conf->wait_for_stripe, + !list_empty(conf->inactive_list + hash) && + (atomic_read(&conf->active_stripes) + < (conf->max_nr_stripes * 3 / 4) + || !conf->inactive_blocked), + *(conf->hash_locks + hash)); conf->inactive_blocked = 0; } else init_stripe(sh, sector, previous); @@ -585,9 +684,11 @@ get_active_stripe(struct r5conf *conf, sector_t sector, && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state) && !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state)); } else { + spin_lock(&conf->device_lock); if (!test_bit(STRIPE_HANDLE, &sh->state)) atomic_inc(&conf->active_stripes); if (list_empty(&sh->lru) && + !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state) && !test_bit(STRIPE_EXPANDING, &sh->state)) BUG(); list_del_init(&sh->lru); @@ -595,6 +696,7 @@ get_active_stripe(struct r5conf *conf, sector_t sector, sh->group->stripes_cnt--; sh->group = NULL; } + spin_unlock(&conf->device_lock); } } } while (sh == NULL); @@ -602,7 +704,7 @@ get_active_stripe(struct r5conf *conf, sector_t sector, if (sh) atomic_inc(&sh->count); - spin_unlock_irq(&conf->device_lock); + spin_unlock_irq(conf->hash_locks + hash); return sh; } @@ -758,7 +860,7 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) bi->bi_sector = (sh->sector + rdev->data_offset); if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) - bi->bi_rw |= REQ_FLUSH; + bi->bi_rw |= REQ_NOMERGE; bi->bi_vcnt = 1; bi->bi_io_vec[0].bv_len = STRIPE_SIZE; @@ -1582,7 +1684,7 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) put_cpu(); } -static int grow_one_stripe(struct r5conf *conf) +static int grow_one_stripe(struct r5conf *conf, int hash) { struct stripe_head *sh; sh = kmem_cache_zalloc(conf->slab_cache, GFP_KERNEL); @@ -1598,6 +1700,7 @@ static int grow_one_stripe(struct r5conf *conf) kmem_cache_free(conf->slab_cache, sh); return 0; } + sh->hash_lock_index = hash; /* we just created an active stripe so... */ atomic_set(&sh->count, 1); atomic_inc(&conf->active_stripes); @@ -1610,6 +1713,7 @@ static int grow_stripes(struct r5conf *conf, int num) { struct kmem_cache *sc; int devs = max(conf->raid_disks, conf->previous_raid_disks); + int hash; if (conf->mddev->gendisk) sprintf(conf->cache_name[0], @@ -1627,9 +1731,13 @@ static int grow_stripes(struct r5conf *conf, int num) return 1; conf->slab_cache = sc; conf->pool_size = devs; - while (num--) - if (!grow_one_stripe(conf)) + hash = conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS; + while (num--) { + if (!grow_one_stripe(conf, hash)) return 1; + conf->max_nr_stripes++; + hash = (hash + 1) % NR_STRIPE_HASH_LOCKS; + } return 0; } @@ -1687,6 +1795,7 @@ static int resize_stripes(struct r5conf *conf, int newsize) int err; struct kmem_cache *sc; int i; + int hash, cnt; if (newsize <= conf->pool_size) return 0; /* never bother to shrink */ @@ -1726,19 +1835,29 @@ static int resize_stripes(struct r5conf *conf, int newsize) * OK, we have enough stripes, start collecting inactive * stripes and copying them over */ + hash = 0; + cnt = 0; list_for_each_entry(nsh, &newstripes, lru) { - spin_lock_irq(&conf->device_lock); - wait_event_lock_irq(conf->wait_for_stripe, - !list_empty(&conf->inactive_list), - conf->device_lock); - osh = get_free_stripe(conf); - spin_unlock_irq(&conf->device_lock); + lock_device_hash_lock(conf, hash); + wait_event_cmd(conf->wait_for_stripe, + !list_empty(conf->inactive_list + hash), + unlock_device_hash_lock(conf, hash), + lock_device_hash_lock(conf, hash)); + osh = get_free_stripe(conf, hash); + unlock_device_hash_lock(conf, hash); atomic_set(&nsh->count, 1); for(i=0; i<conf->pool_size; i++) nsh->dev[i].page = osh->dev[i].page; for( ; i<newsize; i++) nsh->dev[i].page = NULL; + nsh->hash_lock_index = hash; kmem_cache_free(conf->slab_cache, osh); + cnt++; + if (cnt >= conf->max_nr_stripes / NR_STRIPE_HASH_LOCKS + + !!((conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS) > hash)) { + hash++; + cnt = 0; + } } kmem_cache_destroy(conf->slab_cache); @@ -1797,13 +1916,13 @@ static int resize_stripes(struct r5conf *conf, int newsize) return err; } -static int drop_one_stripe(struct r5conf *conf) +static int drop_one_stripe(struct r5conf *conf, int hash) { struct stripe_head *sh; - spin_lock_irq(&conf->device_lock); - sh = get_free_stripe(conf); - spin_unlock_irq(&conf->device_lock); + spin_lock_irq(conf->hash_locks + hash); + sh = get_free_stripe(conf, hash); + spin_unlock_irq(conf->hash_locks + hash); if (!sh) return 0; BUG_ON(atomic_read(&sh->count)); @@ -1815,8 +1934,10 @@ static int drop_one_stripe(struct r5conf *conf) static void shrink_stripes(struct r5conf *conf) { - while (drop_one_stripe(conf)) - ; + int hash; + for (hash = 0; hash < NR_STRIPE_HASH_LOCKS; hash++) + while (drop_one_stripe(conf, hash)) + ; if (conf->slab_cache) kmem_cache_destroy(conf->slab_cache); @@ -1921,6 +2042,9 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), bdn); else retry = 1; + if (set_bad && test_bit(In_sync, &rdev->flags) + && !test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) + retry = 1; if (retry) if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) { set_bit(R5_ReadError, &sh->dev[i].flags); @@ -3900,7 +4024,8 @@ static void raid5_activate_delayed(struct r5conf *conf) } } -static void activate_bit_delay(struct r5conf *conf) +static void activate_bit_delay(struct r5conf *conf, + struct list_head *temp_inactive_list) { /* device_lock is held */ struct list_head head; @@ -3908,9 +4033,11 @@ static void activate_bit_delay(struct r5conf *conf) list_del_init(&conf->bitmap_list); while (!list_empty(&head)) { struct stripe_head *sh = list_entry(head.next, struct stripe_head, lru); + int hash; list_del_init(&sh->lru); atomic_inc(&sh->count); - __release_stripe(conf, sh); + hash = sh->hash_lock_index; + __release_stripe(conf, sh, &temp_inactive_list[hash]); } } @@ -3926,7 +4053,7 @@ int md_raid5_congested(struct mddev *mddev, int bits) return 1; if (conf->quiesce) return 1; - if (list_empty_careful(&conf->inactive_list)) + if (atomic_read(&conf->empty_inactive_list_nr)) return 1; return 0; @@ -4256,6 +4383,7 @@ static struct stripe_head *__get_priority_stripe(struct r5conf *conf, int group) struct raid5_plug_cb { struct blk_plug_cb cb; struct list_head list; + struct list_head temp_inactive_list[NR_STRIPE_HASH_LOCKS]; }; static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule) @@ -4266,6 +4394,7 @@ static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule) struct mddev *mddev = cb->cb.data; struct r5conf *conf = mddev->private; int cnt = 0; + int hash; if (cb->list.next && !list_empty(&cb->list)) { spin_lock_irq(&conf->device_lock); @@ -4283,11 +4412,14 @@ static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule) * STRIPE_ON_RELEASE_LIST could be set here. In that * case, the count is always > 1 here */ - __release_stripe(conf, sh); + hash = sh->hash_lock_index; + __release_stripe(conf, sh, &cb->temp_inactive_list[hash]); cnt++; } spin_unlock_irq(&conf->device_lock); } + release_inactive_stripe_list(conf, cb->temp_inactive_list, + NR_STRIPE_HASH_LOCKS); if (mddev->queue) trace_block_unplug(mddev->queue, cnt, !from_schedule); kfree(cb); @@ -4308,8 +4440,12 @@ static void release_stripe_plug(struct mddev *mddev, cb = container_of(blk_cb, struct raid5_plug_cb, cb); - if (cb->list.next == NULL) + if (cb->list.next == NULL) { + int i; INIT_LIST_HEAD(&cb->list); + for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) + INIT_LIST_HEAD(cb->temp_inactive_list + i); + } if (!test_and_set_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)) list_add_tail(&sh->lru, &cb->list); @@ -4692,14 +4828,19 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk time_after(jiffies, conf->reshape_checkpoint + 10*HZ)) { /* Cannot proceed until we've updated the superblock... */ wait_event(conf->wait_for_overlap, - atomic_read(&conf->reshape_stripes)==0); + atomic_read(&conf->reshape_stripes)==0 + || test_bit(MD_RECOVERY_INTR, &mddev->recovery)); + if (atomic_read(&conf->reshape_stripes) != 0) + return 0; mddev->reshape_position = conf->reshape_progress; mddev->curr_resync_completed = sector_nr; conf->reshape_checkpoint = jiffies; set_bit(MD_CHANGE_DEVS, &mddev->flags); md_wakeup_thread(mddev->thread); wait_event(mddev->sb_wait, mddev->flags == 0 || - kthread_should_stop()); + test_bit(MD_RECOVERY_INTR, &mddev->recovery)); + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) + return 0; spin_lock_irq(&conf->device_lock); conf->reshape_safe = mddev->reshape_position; spin_unlock_irq(&conf->device_lock); @@ -4782,7 +4923,10 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk >= mddev->resync_max - mddev->curr_resync_completed) { /* Cannot proceed until we've updated the superblock... */ wait_event(conf->wait_for_overlap, - atomic_read(&conf->reshape_stripes) == 0); + atomic_read(&conf->reshape_stripes) == 0 + || test_bit(MD_RECOVERY_INTR, &mddev->recovery)); + if (atomic_read(&conf->reshape_stripes) != 0) + goto ret; mddev->reshape_position = conf->reshape_progress; mddev->curr_resync_completed = sector_nr; conf->reshape_checkpoint = jiffies; @@ -4790,13 +4934,16 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk md_wakeup_thread(mddev->thread); wait_event(mddev->sb_wait, !test_bit(MD_CHANGE_DEVS, &mddev->flags) - || kthread_should_stop()); + || test_bit(MD_RECOVERY_INTR, &mddev->recovery)); + if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) + goto ret; spin_lock_irq(&conf->device_lock); conf->reshape_safe = mddev->reshape_position; spin_unlock_irq(&conf->device_lock); wake_up(&conf->wait_for_overlap); sysfs_notify(&mddev->kobj, NULL, "sync_completed"); } +ret: return reshape_sectors; } @@ -4954,27 +5101,45 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) } static int handle_active_stripes(struct r5conf *conf, int group, - struct r5worker *worker) + struct r5worker *worker, + struct list_head *temp_inactive_list) { struct stripe_head *batch[MAX_STRIPE_BATCH], *sh; - int i, batch_size = 0; + int i, batch_size = 0, hash; + bool release_inactive = false; while (batch_size < MAX_STRIPE_BATCH && (sh = __get_priority_stripe(conf, group)) != NULL) batch[batch_size++] = sh; - if (batch_size == 0) - return batch_size; + if (batch_size == 0) { + for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) + if (!list_empty(temp_inactive_list + i)) + break; + if (i == NR_STRIPE_HASH_LOCKS) + return batch_size; + release_inactive = true; + } spin_unlock_irq(&conf->device_lock); + release_inactive_stripe_list(conf, temp_inactive_list, + NR_STRIPE_HASH_LOCKS); + + if (release_inactive) { + spin_lock_irq(&conf->device_lock); + return 0; + } + for (i = 0; i < batch_size; i++) handle_stripe(batch[i]); cond_resched(); spin_lock_irq(&conf->device_lock); - for (i = 0; i < batch_size; i++) - __release_stripe(conf, batch[i]); + for (i = 0; i < batch_size; i++) { + hash = batch[i]->hash_lock_index; + __release_stripe(conf, batch[i], &temp_inactive_list[hash]); + } return batch_size; } @@ -4995,9 +5160,10 @@ static void raid5_do_work(struct work_struct *work) while (1) { int batch_size, released; - released = release_stripe_list(conf); + released = release_stripe_list(conf, worker->temp_inactive_list); - batch_size = handle_active_stripes(conf, group_id, worker); + batch_size = handle_active_stripes(conf, group_id, worker, + worker->temp_inactive_list); worker->working = false; if (!batch_size && !released) break; @@ -5036,7 +5202,7 @@ static void raid5d(struct md_thread *thread) struct bio *bio; int batch_size, released; - released = release_stripe_list(conf); + released = release_stripe_list(conf, conf->temp_inactive_list); if ( !list_empty(&conf->bitmap_list)) { @@ -5046,7 +5212,7 @@ static void raid5d(struct md_thread *thread) bitmap_unplug(mddev->bitmap); spin_lock_irq(&conf->device_lock); conf->seq_write = conf->seq_flush; - activate_bit_delay(conf); + activate_bit_delay(conf, conf->temp_inactive_list); } raid5_activate_delayed(conf); @@ -5060,7 +5226,8 @@ static void raid5d(struct md_thread *thread) handled++; } - batch_size = handle_active_stripes(conf, ANY_GROUP, NULL); + batch_size = handle_active_stripes(conf, ANY_GROUP, NULL, + conf->temp_inactive_list); if (!batch_size && !released) break; handled += batch_size; @@ -5096,22 +5263,29 @@ raid5_set_cache_size(struct mddev *mddev, int size) { struct r5conf *conf = mddev->private; int err; + int hash; if (size <= 16 || size > 32768) return -EINVAL; + hash = (conf->max_nr_stripes - 1) % NR_STRIPE_HASH_LOCKS; while (size < conf->max_nr_stripes) { - if (drop_one_stripe(conf)) + if (drop_one_stripe(conf, hash)) conf->max_nr_stripes--; else break; + hash--; + if (hash < 0) + hash = NR_STRIPE_HASH_LOCKS - 1; } err = md_allow_write(mddev); if (err) return err; + hash = conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS; while (size > conf->max_nr_stripes) { - if (grow_one_stripe(conf)) + if (grow_one_stripe(conf, hash)) conf->max_nr_stripes++; else break; + hash = (hash + 1) % NR_STRIPE_HASH_LOCKS; } return 0; } @@ -5199,15 +5373,18 @@ raid5_show_group_thread_cnt(struct mddev *mddev, char *page) return 0; } -static int alloc_thread_groups(struct r5conf *conf, int cnt); +static int alloc_thread_groups(struct r5conf *conf, int cnt, + int *group_cnt, + int *worker_cnt_per_group, + struct r5worker_group **worker_groups); static ssize_t raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len) { struct r5conf *conf = mddev->private; unsigned long new; int err; - struct r5worker_group *old_groups; - int old_group_cnt; + struct r5worker_group *new_groups, *old_groups; + int group_cnt, worker_cnt_per_group; if (len >= PAGE_SIZE) return -EINVAL; @@ -5223,14 +5400,19 @@ raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len) mddev_suspend(mddev); old_groups = conf->worker_groups; - old_group_cnt = conf->worker_cnt_per_group; + if (old_groups) + flush_workqueue(raid5_wq); + + err = alloc_thread_groups(conf, new, + &group_cnt, &worker_cnt_per_group, + &new_groups); + if (!err) { + spin_lock_irq(&conf->device_lock); + conf->group_cnt = group_cnt; + conf->worker_cnt_per_group = worker_cnt_per_group; + conf->worker_groups = new_groups; + spin_unlock_irq(&conf->device_lock); - conf->worker_groups = NULL; - err = alloc_thread_groups(conf, new); - if (err) { - conf->worker_groups = old_groups; - conf->worker_cnt_per_group = old_group_cnt; - } else { if (old_groups) kfree(old_groups[0].workers); kfree(old_groups); @@ -5260,40 +5442,47 @@ static struct attribute_group raid5_attrs_group = { .attrs = raid5_attrs, }; -static int alloc_thread_groups(struct r5conf *conf, int cnt) +static int alloc_thread_groups(struct r5conf *conf, int cnt, + int *group_cnt, + int *worker_cnt_per_group, + struct r5worker_group **worker_groups) { - int i, j; + int i, j, k; ssize_t size; struct r5worker *workers; - conf->worker_cnt_per_group = cnt; + *worker_cnt_per_group = cnt; if (cnt == 0) { - conf->worker_groups = NULL; + *group_cnt = 0; + *worker_groups = NULL; return 0; } - conf->group_cnt = num_possible_nodes(); + *group_cnt = num_possible_nodes(); size = sizeof(struct r5worker) * cnt; - workers = kzalloc(size * conf->group_cnt, GFP_NOIO); - conf->worker_groups = kzalloc(sizeof(struct r5worker_group) * - conf->group_cnt, GFP_NOIO); - if (!conf->worker_groups || !workers) { + workers = kzalloc(size * *group_cnt, GFP_NOIO); + *worker_groups = kzalloc(sizeof(struct r5worker_group) * + *group_cnt, GFP_NOIO); + if (!*worker_groups || !workers) { kfree(workers); - kfree(conf->worker_groups); - conf->worker_groups = NULL; + kfree(*worker_groups); return -ENOMEM; } - for (i = 0; i < conf->group_cnt; i++) { + for (i = 0; i < *group_cnt; i++) { struct r5worker_group *group; - group = &conf->worker_groups[i]; + group = worker_groups[i]; INIT_LIST_HEAD(&group->handle_list); group->conf = conf; group->workers = workers + i * cnt; for (j = 0; j < cnt; j++) { - group->workers[j].group = group; - INIT_WORK(&group->workers[j].work, raid5_do_work); + struct r5worker *worker = group->workers + j; + worker->group = group; + INIT_WORK(&worker->work, raid5_do_work); + + for (k = 0; k < NR_STRIPE_HASH_LOCKS; k++) + INIT_LIST_HEAD(worker->temp_inactive_list + k); } } @@ -5444,6 +5633,9 @@ static struct r5conf *setup_conf(struct mddev *mddev) struct md_rdev *rdev; struct disk_info *disk; char pers_name[6]; + int i; + int group_cnt, worker_cnt_per_group; + struct r5worker_group *new_group; if (mddev->new_level != 5 && mddev->new_level != 4 @@ -5478,7 +5670,12 @@ static struct r5conf *setup_conf(struct mddev *mddev) if (conf == NULL) goto abort; /* Don't enable multi-threading by default*/ - if (alloc_thread_groups(conf, 0)) + if (!alloc_thread_groups(conf, 0, &group_cnt, &worker_cnt_per_group, + &new_group)) { + conf->group_cnt = group_cnt; + conf->worker_cnt_per_group = worker_cnt_per_group; + conf->worker_groups = new_group; + } else goto abort; spin_lock_init(&conf->device_lock); seqcount_init(&conf->gen_lock); @@ -5488,7 +5685,6 @@ static struct r5conf *setup_conf(struct mddev *mddev) INIT_LIST_HEAD(&conf->hold_list); INIT_LIST_HEAD(&conf->delayed_list); INIT_LIST_HEAD(&conf->bitmap_list); - INIT_LIST_HEAD(&conf->inactive_list); init_llist_head(&conf->released_stripes); atomic_set(&conf->active_stripes, 0); atomic_set(&conf->preread_active_stripes, 0); @@ -5514,6 +5710,21 @@ static struct r5conf *setup_conf(struct mddev *mddev) if ((conf->stripe_hashtbl = kzalloc(PAGE_SIZE, GFP_KERNEL)) == NULL) goto abort; + /* We init hash_locks[0] separately to that it can be used + * as the reference lock in the spin_lock_nest_lock() call + * in lock_all_device_hash_locks_irq in order to convince + * lockdep that we know what we are doing. + */ + spin_lock_init(conf->hash_locks); + for (i = 1; i < NR_STRIPE_HASH_LOCKS; i++) + spin_lock_init(conf->hash_locks + i); + + for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) + INIT_LIST_HEAD(conf->inactive_list + i); + + for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++) + INIT_LIST_HEAD(conf->temp_inactive_list + i); + conf->level = mddev->new_level; if (raid5_alloc_percpu(conf) != 0) goto abort; @@ -5554,7 +5765,6 @@ static struct r5conf *setup_conf(struct mddev *mddev) else conf->max_degraded = 1; conf->algorithm = mddev->new_layout; - conf->max_nr_stripes = NR_STRIPES; conf->reshape_progress = mddev->reshape_position; if (conf->reshape_progress != MaxSector) { conf->prev_chunk_sectors = mddev->chunk_sectors; @@ -5563,7 +5773,8 @@ static struct r5conf *setup_conf(struct mddev *mddev) memory = conf->max_nr_stripes * (sizeof(struct stripe_head) + max_disks * ((sizeof(struct bio) + PAGE_SIZE))) / 1024; - if (grow_stripes(conf, conf->max_nr_stripes)) { + atomic_set(&conf->empty_inactive_list_nr, NR_STRIPE_HASH_LOCKS); + if (grow_stripes(conf, NR_STRIPES)) { printk(KERN_ERR "md/raid:%s: couldn't allocate %dkB for buffers\n", mdname(mddev), memory); @@ -6369,12 +6580,18 @@ static int raid5_start_reshape(struct mddev *mddev) if (!mddev->sync_thread) { mddev->recovery = 0; spin_lock_irq(&conf->device_lock); + write_seqcount_begin(&conf->gen_lock); mddev->raid_disks = conf->raid_disks = conf->previous_raid_disks; + mddev->new_chunk_sectors = + conf->chunk_sectors = conf->prev_chunk_sectors; + mddev->new_layout = conf->algorithm = conf->prev_algo; rdev_for_each(rdev, mddev) rdev->new_data_offset = rdev->data_offset; smp_wmb(); + conf->generation --; conf->reshape_progress = MaxSector; mddev->reshape_position = MaxSector; + write_seqcount_end(&conf->gen_lock); spin_unlock_irq(&conf->device_lock); return -EAGAIN; } @@ -6462,27 +6679,28 @@ static void raid5_quiesce(struct mddev *mddev, int state) break; case 1: /* stop all writes */ - spin_lock_irq(&conf->device_lock); + lock_all_device_hash_locks_irq(conf); /* '2' tells resync/reshape to pause so that all * active stripes can drain */ conf->quiesce = 2; - wait_event_lock_irq(conf->wait_for_stripe, + wait_event_cmd(conf->wait_for_stripe, atomic_read(&conf->active_stripes) == 0 && atomic_read(&conf->active_aligned_reads) == 0, - conf->device_lock); + unlock_all_device_hash_locks_irq(conf), + lock_all_device_hash_locks_irq(conf)); conf->quiesce = 1; - spin_unlock_irq(&conf->device_lock); + unlock_all_device_hash_locks_irq(conf); /* allow reshape to continue */ wake_up(&conf->wait_for_overlap); break; case 0: /* re-enable writes */ - spin_lock_irq(&conf->device_lock); + lock_all_device_hash_locks_irq(conf); conf->quiesce = 0; wake_up(&conf->wait_for_stripe); wake_up(&conf->wait_for_overlap); - spin_unlock_irq(&conf->device_lock); + unlock_all_device_hash_locks_irq(conf); break; } } diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index b42e6b462eda..01ad8ae8f578 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -205,6 +205,7 @@ struct stripe_head { short pd_idx; /* parity disk index */ short qd_idx; /* 'Q' disk index for raid6 */ short ddf_layout;/* use DDF ordering to calculate Q */ + short hash_lock_index; unsigned long state; /* state flags */ atomic_t count; /* nr of active thread/requests */ int bm_seq; /* sequence number for bitmap flushes */ @@ -367,9 +368,18 @@ struct disk_info { struct md_rdev *rdev, *replacement; }; +/* NOTE NR_STRIPE_HASH_LOCKS must remain below 64. + * This is because we sometimes take all the spinlocks + * and creating that much locking depth can cause + * problems. + */ +#define NR_STRIPE_HASH_LOCKS 8 +#define STRIPE_HASH_LOCKS_MASK (NR_STRIPE_HASH_LOCKS - 1) + struct r5worker { struct work_struct work; struct r5worker_group *group; + struct list_head temp_inactive_list[NR_STRIPE_HASH_LOCKS]; bool working; }; @@ -382,6 +392,8 @@ struct r5worker_group { struct r5conf { struct hlist_head *stripe_hashtbl; + /* only protect corresponding hash list and inactive_list */ + spinlock_t hash_locks[NR_STRIPE_HASH_LOCKS]; struct mddev *mddev; int chunk_sectors; int level, algorithm; @@ -462,7 +474,8 @@ struct r5conf { * Free stripes pool */ atomic_t active_stripes; - struct list_head inactive_list; + struct list_head inactive_list[NR_STRIPE_HASH_LOCKS]; + atomic_t empty_inactive_list_nr; struct llist_head released_stripes; wait_queue_head_t wait_for_stripe; wait_queue_head_t wait_for_overlap; @@ -477,6 +490,7 @@ struct r5conf { * the new thread here until we fully activate the array. */ struct md_thread *thread; + struct list_head temp_inactive_list[NR_STRIPE_HASH_LOCKS]; struct r5worker_group *worker_groups; int group_cnt; int worker_cnt_per_group; diff --git a/drivers/media/common/b2c2/flexcop-sram.c b/drivers/media/common/b2c2/flexcop-sram.c index f2199e43e803..185c285f70fc 100644 --- a/drivers/media/common/b2c2/flexcop-sram.c +++ b/drivers/media/common/b2c2/flexcop-sram.c @@ -85,7 +85,7 @@ static void flexcop_sram_write(struct adapter *adapter, u32 bank, u32 addr, u8 * while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) { mdelay(1); retries--; - }; + } if (retries == 0) printk("%s: SRAM timeout\n", __func__); @@ -110,7 +110,7 @@ static void flex_sram_read(struct adapter *adapter, u32 bank, u32 addr, u8 *buf, while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) { mdelay(1); retries--; - }; + } if (retries == 0) printk("%s: SRAM timeout\n", __func__); @@ -122,7 +122,7 @@ static void flex_sram_read(struct adapter *adapter, u32 bank, u32 addr, u8 *buf, while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) { mdelay(1); retries--; - }; + } if (retries == 0) printk("%s: SRAM timeout\n", __func__); diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c index bb6ee5191eb1..34b0d0ddeef3 100644 --- a/drivers/media/common/saa7146/saa7146_core.c +++ b/drivers/media/common/saa7146/saa7146_core.c @@ -411,7 +411,7 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent saa7146_write(dev, MC2, 0xf8000000); /* request an interrupt for the saa7146 */ - err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED | IRQF_DISABLED, + err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED, dev->name, dev); if (err < 0) { ERR("request_irq() failed\n"); @@ -524,8 +524,6 @@ static void saa7146_remove_one(struct pci_dev *pdev) DEB_EE("dev:%p\n", dev); dev->ext->detach(dev); - /* Zero the PCI drvdata after use. */ - pci_set_drvdata(pdev, NULL); /* shut down all video dma transfers */ saa7146_write(dev, MC1, 0x00ff0000); diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c index a142f7942a01..050984c5b1e3 100644 --- a/drivers/media/common/siano/smscoreapi.c +++ b/drivers/media/common/siano/smscoreapi.c @@ -922,8 +922,8 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev, u32 i, *ptr; u8 *payload = firmware->payload; int rc = 0; - firmware->start_address = le32_to_cpu(firmware->start_address); - firmware->length = le32_to_cpu(firmware->length); + firmware->start_address = le32_to_cpup((__le32 *)&firmware->start_address); + firmware->length = le32_to_cpup((__le32 *)&firmware->length); mem_address = firmware->start_address; @@ -982,7 +982,7 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev, if (rc < 0) goto exit_fw_download; - sms_err("sending MSG_SMS_DATA_VALIDITY_REQ expecting 0x%x", + sms_debug("sending MSG_SMS_DATA_VALIDITY_REQ expecting 0x%x", calc_checksum); SMS_INIT_MSG(&msg->x_msg_header, MSG_SMS_DATA_VALIDITY_REQ, sizeof(msg->x_msg_header) + @@ -1562,7 +1562,7 @@ void smscore_onresponse(struct smscore_device_t *coredev, { struct sms_msg_data *validity = (struct sms_msg_data *) phdr; - sms_err("MSG_SMS_DATA_VALIDITY_RES, checksum = 0x%x", + sms_debug("MSG_SMS_DATA_VALIDITY_RES, checksum = 0x%x", validity->msg_data[0]); complete(&coredev->data_validity_done); break; diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c index 63676a8b024c..85151efdd94c 100644 --- a/drivers/media/common/siano/smsdvb-main.c +++ b/drivers/media/common/siano/smsdvb-main.c @@ -44,14 +44,14 @@ module_param_named(debug, sms_dbg, int, 0644); MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))"); -u32 sms_to_guard_interval_table[] = { +static u32 sms_to_guard_interval_table[] = { [0] = GUARD_INTERVAL_1_32, [1] = GUARD_INTERVAL_1_16, [2] = GUARD_INTERVAL_1_8, [3] = GUARD_INTERVAL_1_4, }; -u32 sms_to_code_rate_table[] = { +static u32 sms_to_code_rate_table[] = { [0] = FEC_1_2, [1] = FEC_2_3, [2] = FEC_3_4, @@ -60,14 +60,14 @@ u32 sms_to_code_rate_table[] = { }; -u32 sms_to_hierarchy_table[] = { +static u32 sms_to_hierarchy_table[] = { [0] = HIERARCHY_NONE, [1] = HIERARCHY_1, [2] = HIERARCHY_2, [3] = HIERARCHY_4, }; -u32 sms_to_modulation_table[] = { +static u32 sms_to_modulation_table[] = { [0] = QPSK, [1] = QAM_16, [2] = QAM_64, diff --git a/drivers/media/dvb-core/dvb_demux.c b/drivers/media/dvb-core/dvb_demux.c index 3485655fa082..58de4410c525 100644 --- a/drivers/media/dvb-core/dvb_demux.c +++ b/drivers/media/dvb-core/dvb_demux.c @@ -476,7 +476,9 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf) void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, size_t count) { - spin_lock(&demux->lock); + unsigned long flags; + + spin_lock_irqsave(&demux->lock, flags); while (count--) { if (buf[0] == 0x47) @@ -484,7 +486,7 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, buf += 188; } - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_packets); @@ -519,8 +521,9 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, { int p = 0, i, j; const u8 *q; + unsigned long flags; - spin_lock(&demux->lock); + spin_lock_irqsave(&demux->lock, flags); if (demux->tsbufp) { /* tsbuf[0] is now 0x47. */ i = demux->tsbufp; @@ -564,7 +567,7 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, } bailout: - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count) @@ -581,11 +584,13 @@ EXPORT_SYMBOL(dvb_dmx_swfilter_204); void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count) { - spin_lock(&demux->lock); + unsigned long flags; + + spin_lock_irqsave(&demux->lock, flags); demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts, DMX_OK); - spin_unlock(&demux->lock); + spin_unlock_irqrestore(&demux->lock, flags); } EXPORT_SYMBOL(dvb_dmx_swfilter_raw); diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig index 0e2ec6f73b05..bddbab43a2df 100644 --- a/drivers/media/dvb-frontends/Kconfig +++ b/drivers/media/dvb-frontends/Kconfig @@ -200,6 +200,13 @@ config DVB_CX24116 help A DVB-S/S2 tuner module. Say Y when you want to support this frontend. +config DVB_CX24117 + tristate "Conexant CX24117 based" + depends on DVB_CORE && I2C + default m if !MEDIA_SUBDRV_AUTOSELECT + help + A Dual DVB-S/S2 tuner module. Say Y when you want to support this frontend. + config DVB_SI21XX tristate "Silicon Labs SI21XX based" depends on DVB_CORE && I2C diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile index cebc0faffab5..f9cb43d9aed9 100644 --- a/drivers/media/dvb-frontends/Makefile +++ b/drivers/media/dvb-frontends/Makefile @@ -76,6 +76,7 @@ obj-$(CONFIG_DVB_ATBM8830) += atbm8830.o obj-$(CONFIG_DVB_DUMMY_FE) += dvb_dummy_fe.o obj-$(CONFIG_DVB_AF9013) += af9013.o obj-$(CONFIG_DVB_CX24116) += cx24116.o +obj-$(CONFIG_DVB_CX24117) += cx24117.o obj-$(CONFIG_DVB_SI21XX) += si21xx.o obj-$(CONFIG_DVB_STV0288) += stv0288.o obj-$(CONFIG_DVB_STB6000) += stb6000.o diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c index a204f2828820..fb504f1e9125 100644 --- a/drivers/media/dvb-frontends/af9013.c +++ b/drivers/media/dvb-frontends/af9013.c @@ -24,6 +24,9 @@ #include "af9013_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + struct af9013_state { struct i2c_adapter *i2c; struct dvb_frontend fe; @@ -50,16 +53,23 @@ static int af9013_wr_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg, const u8 *val, int len) { int ret; - u8 buf[3+len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->config.i2c_addr, .flags = 0, - .len = sizeof(buf), + .len = 3 + len, .buf = buf, } }; + if (3 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = (reg >> 8) & 0xff; buf[1] = (reg >> 0) & 0xff; buf[2] = mbox; diff --git a/drivers/media/dvb-frontends/af9033.c b/drivers/media/dvb-frontends/af9033.c index a777b4b944eb..30ee59052157 100644 --- a/drivers/media/dvb-frontends/af9033.c +++ b/drivers/media/dvb-frontends/af9033.c @@ -21,6 +21,9 @@ #include "af9033_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + struct af9033_state { struct i2c_adapter *i2c; struct dvb_frontend fe; @@ -40,16 +43,23 @@ static int af9033_wr_regs(struct af9033_state *state, u32 reg, const u8 *val, int len) { int ret; - u8 buf[3 + len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = state->cfg.i2c_addr, .flags = 0, - .len = sizeof(buf), + .len = 3 + len, .buf = buf, } }; + if (3 + len > sizeof(buf)) { + dev_warn(&state->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = (reg >> 16) & 0xff; buf[1] = (reg >> 8) & 0xff; buf[2] = (reg >> 0) & 0xff; @@ -161,7 +171,14 @@ static int af9033_wr_reg_val_tab(struct af9033_state *state, const struct reg_val *tab, int tab_len) { int ret, i, j; - u8 buf[tab_len]; + u8 buf[MAX_XFER_SIZE]; + + if (tab_len > sizeof(buf)) { + dev_warn(&state->i2c->dev, + "%s: i2c wr len=%d is too big!\n", + KBUILD_MODNAME, tab_len); + return -EINVAL; + } dev_dbg(&state->i2c->dev, "%s: tab_len=%d\n", __func__, tab_len); diff --git a/drivers/media/dvb-frontends/bcm3510.c b/drivers/media/dvb-frontends/bcm3510.c index 1b77909c0c71..39a29dd29519 100644 --- a/drivers/media/dvb-frontends/bcm3510.c +++ b/drivers/media/dvb-frontends/bcm3510.c @@ -44,6 +44,9 @@ #include "bcm3510.h" #include "bcm3510_priv.h" +/* Max transfer size done by bcm3510_do_hab_cmd() function */ +#define MAX_XFER_SIZE 128 + struct bcm3510_state { struct i2c_adapter* i2c; @@ -201,9 +204,19 @@ static int bcm3510_hab_send_request(struct bcm3510_state *st, u8 *buf, int len) static int bcm3510_do_hab_cmd(struct bcm3510_state *st, u8 cmd, u8 msgid, u8 *obuf, u8 olen, u8 *ibuf, u8 ilen) { - u8 ob[olen+2],ib[ilen+2]; + u8 ob[MAX_XFER_SIZE], ib[MAX_XFER_SIZE]; int ret = 0; + if (ilen + 2 > sizeof(ib)) { + deb_hab("do_hab_cmd: ilen=%d is too big!\n", ilen); + return -EINVAL; + } + + if (olen + 2 > sizeof(ob)) { + deb_hab("do_hab_cmd: olen=%d is too big!\n", olen); + return -EINVAL; + } + ob[0] = cmd; ob[1] = msgid; memcpy(&ob[2],obuf,olen); diff --git a/drivers/media/dvb-frontends/cx24110.c b/drivers/media/dvb-frontends/cx24110.c index 0cd6927e654c..95b981cd7115 100644 --- a/drivers/media/dvb-frontends/cx24110.c +++ b/drivers/media/dvb-frontends/cx24110.c @@ -378,7 +378,7 @@ static int cx24110_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0x40); default: return -EINVAL; - }; + } } static int cx24110_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst) diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c new file mode 100644 index 000000000000..476b422ccf19 --- /dev/null +++ b/drivers/media/dvb-frontends/cx24117.c @@ -0,0 +1,1650 @@ +/* + Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver + + Copyright (C) 2013 Luis Alves <ljalvs@gmail.com> + July, 6th 2013 + First release based on cx24116 driver by: + Steven Toth and Georg Acher, Darron Broad, Igor Liplianin + Cards currently supported: + TBS6980 - Dual DVBS/S2 PCIe card + TBS6981 - Dual DVBS/S2 PCIe card + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/firmware.h> + +#include "tuner-i2c.h" +#include "dvb_frontend.h" +#include "cx24117.h" + + +#define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw" +#define CX24117_SEARCH_RANGE_KHZ 5000 + +/* known registers */ +#define CX24117_REG_COMMAND (0x00) /* command buffer */ +#define CX24117_REG_EXECUTE (0x1f) /* execute command */ + +#define CX24117_REG_FREQ3_0 (0x34) /* frequency */ +#define CX24117_REG_FREQ2_0 (0x35) +#define CX24117_REG_FREQ1_0 (0x36) +#define CX24117_REG_STATE0 (0x39) +#define CX24117_REG_SSTATUS0 (0x3a) /* demod0 signal high / status */ +#define CX24117_REG_SIGNAL0 (0x3b) +#define CX24117_REG_FREQ5_0 (0x3c) /* +-freq */ +#define CX24117_REG_FREQ6_0 (0x3d) +#define CX24117_REG_SRATE2_0 (0x3e) /* +- 1000 * srate */ +#define CX24117_REG_SRATE1_0 (0x3f) +#define CX24117_REG_QUALITY2_0 (0x40) +#define CX24117_REG_QUALITY1_0 (0x41) + +#define CX24117_REG_BER4_0 (0x47) +#define CX24117_REG_BER3_0 (0x48) +#define CX24117_REG_BER2_0 (0x49) +#define CX24117_REG_BER1_0 (0x4a) +#define CX24117_REG_DVBS_UCB2_0 (0x4b) +#define CX24117_REG_DVBS_UCB1_0 (0x4c) +#define CX24117_REG_DVBS2_UCB2_0 (0x50) +#define CX24117_REG_DVBS2_UCB1_0 (0x51) +#define CX24117_REG_QSTATUS0 (0x93) +#define CX24117_REG_CLKDIV0 (0xe6) +#define CX24117_REG_RATEDIV0 (0xf0) + + +#define CX24117_REG_FREQ3_1 (0x55) /* frequency */ +#define CX24117_REG_FREQ2_1 (0x56) +#define CX24117_REG_FREQ1_1 (0x57) +#define CX24117_REG_STATE1 (0x5a) +#define CX24117_REG_SSTATUS1 (0x5b) /* demod1 signal high / status */ +#define CX24117_REG_SIGNAL1 (0x5c) +#define CX24117_REG_FREQ5_1 (0x5d) /* +- freq */ +#define CX24117_REG_FREQ4_1 (0x5e) +#define CX24117_REG_SRATE2_1 (0x5f) +#define CX24117_REG_SRATE1_1 (0x60) +#define CX24117_REG_QUALITY2_1 (0x61) +#define CX24117_REG_QUALITY1_1 (0x62) +#define CX24117_REG_BER4_1 (0x68) +#define CX24117_REG_BER3_1 (0x69) +#define CX24117_REG_BER2_1 (0x6a) +#define CX24117_REG_BER1_1 (0x6b) +#define CX24117_REG_DVBS_UCB2_1 (0x6c) +#define CX24117_REG_DVBS_UCB1_1 (0x6d) +#define CX24117_REG_DVBS2_UCB2_1 (0x71) +#define CX24117_REG_DVBS2_UCB1_1 (0x72) +#define CX24117_REG_QSTATUS1 (0x9f) +#define CX24117_REG_CLKDIV1 (0xe7) +#define CX24117_REG_RATEDIV1 (0xf1) + + +/* arg buffer size */ +#define CX24117_ARGLEN (0x1e) + +/* rolloff */ +#define CX24117_ROLLOFF_020 (0x00) +#define CX24117_ROLLOFF_025 (0x01) +#define CX24117_ROLLOFF_035 (0x02) + +/* pilot bit */ +#define CX24117_PILOT_OFF (0x00) +#define CX24117_PILOT_ON (0x40) +#define CX24117_PILOT_AUTO (0x80) + +/* signal status */ +#define CX24117_HAS_SIGNAL (0x01) +#define CX24117_HAS_CARRIER (0x02) +#define CX24117_HAS_VITERBI (0x04) +#define CX24117_HAS_SYNCLOCK (0x08) +#define CX24117_STATUS_MASK (0x0f) +#define CX24117_SIGNAL_MASK (0xc0) + + +/* arg offset for DiSEqC */ +#define CX24117_DISEQC_DEMOD (1) +#define CX24117_DISEQC_BURST (2) +#define CX24117_DISEQC_ARG3_2 (3) /* unknown value=2 */ +#define CX24117_DISEQC_ARG4_0 (4) /* unknown value=0 */ +#define CX24117_DISEQC_ARG5_0 (5) /* unknown value=0 */ +#define CX24117_DISEQC_MSGLEN (6) +#define CX24117_DISEQC_MSGOFS (7) + +/* DiSEqC burst */ +#define CX24117_DISEQC_MINI_A (0) +#define CX24117_DISEQC_MINI_B (1) + + +#define CX24117_PNE (0) /* 0 disabled / 2 enabled */ +#define CX24117_OCC (1) /* 0 disabled / 1 enabled */ + + +enum cmds { + CMD_SET_VCO = 0x10, + CMD_TUNEREQUEST = 0x11, + CMD_MPEGCONFIG = 0x13, + CMD_TUNERINIT = 0x14, + CMD_LNBSEND = 0x21, /* Formerly CMD_SEND_DISEQC */ + CMD_LNBDCLEVEL = 0x22, + CMD_SET_TONE = 0x23, + CMD_UPDFWVERS = 0x35, + CMD_TUNERSLEEP = 0x36, +}; + +static LIST_HEAD(hybrid_tuner_instance_list); +static DEFINE_MUTEX(cx24117_list_mutex); + +/* The Demod/Tuner can't easily provide these, we cache them */ +struct cx24117_tuning { + u32 frequency; + u32 symbol_rate; + fe_spectral_inversion_t inversion; + fe_code_rate_t fec; + + fe_delivery_system_t delsys; + fe_modulation_t modulation; + fe_pilot_t pilot; + fe_rolloff_t rolloff; + + /* Demod values */ + u8 fec_val; + u8 fec_mask; + u8 inversion_val; + u8 pilot_val; + u8 rolloff_val; +}; + +/* Basic commands that are sent to the firmware */ +struct cx24117_cmd { + u8 len; + u8 args[CX24117_ARGLEN]; +}; + +/* common to both fe's */ +struct cx24117_priv { + u8 demod_address; + struct i2c_adapter *i2c; + u8 skip_fw_load; + struct mutex fe_lock; + + /* Used for sharing this struct between demods */ + struct tuner_i2c_props i2c_props; + struct list_head hybrid_tuner_instance_list; +}; + +/* one per each fe */ +struct cx24117_state { + struct cx24117_priv *priv; + struct dvb_frontend frontend; + + struct cx24117_tuning dcur; + struct cx24117_tuning dnxt; + struct cx24117_cmd dsec_cmd; + + int demod; +}; + +/* modfec (modulation and FEC) lookup table */ +/* Check cx24116.c for a detailed description of each field */ +static struct cx24117_modfec { + fe_delivery_system_t delivery_system; + fe_modulation_t modulation; + fe_code_rate_t fec; + u8 mask; /* In DVBS mode this is used to autodetect */ + u8 val; /* Passed to the firmware to indicate mode selection */ +} cx24117_modfec_modes[] = { + /* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */ + + /*mod fec mask val */ + { SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 }, + { SYS_DVBS, QPSK, FEC_1_2, 0x02, 0x2e }, /* 00000010 00101110 */ + { SYS_DVBS, QPSK, FEC_2_3, 0x04, 0x2f }, /* 00000100 00101111 */ + { SYS_DVBS, QPSK, FEC_3_4, 0x08, 0x30 }, /* 00001000 00110000 */ + { SYS_DVBS, QPSK, FEC_4_5, 0xfe, 0x30 }, /* 000?0000 ? */ + { SYS_DVBS, QPSK, FEC_5_6, 0x20, 0x31 }, /* 00100000 00110001 */ + { SYS_DVBS, QPSK, FEC_6_7, 0xfe, 0x30 }, /* 0?000000 ? */ + { SYS_DVBS, QPSK, FEC_7_8, 0x80, 0x32 }, /* 10000000 00110010 */ + { SYS_DVBS, QPSK, FEC_8_9, 0xfe, 0x30 }, /* 0000000? ? */ + { SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 }, + /* NBC-QPSK */ + { SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 }, + { SYS_DVBS2, QPSK, FEC_1_2, 0x00, 0x04 }, + { SYS_DVBS2, QPSK, FEC_3_5, 0x00, 0x05 }, + { SYS_DVBS2, QPSK, FEC_2_3, 0x00, 0x06 }, + { SYS_DVBS2, QPSK, FEC_3_4, 0x00, 0x07 }, + { SYS_DVBS2, QPSK, FEC_4_5, 0x00, 0x08 }, + { SYS_DVBS2, QPSK, FEC_5_6, 0x00, 0x09 }, + { SYS_DVBS2, QPSK, FEC_8_9, 0x00, 0x0a }, + { SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b }, + { SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 }, + /* 8PSK */ + { SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 }, + { SYS_DVBS2, PSK_8, FEC_3_5, 0x00, 0x0c }, + { SYS_DVBS2, PSK_8, FEC_2_3, 0x00, 0x0d }, + { SYS_DVBS2, PSK_8, FEC_3_4, 0x00, 0x0e }, + { SYS_DVBS2, PSK_8, FEC_5_6, 0x00, 0x0f }, + { SYS_DVBS2, PSK_8, FEC_8_9, 0x00, 0x10 }, + { SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 }, + { SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 }, + /* + * 'val' can be found in the FECSTATUS register when tuning. + * FECSTATUS will give the actual FEC in use if tuning was successful. + */ +}; + + +static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data) +{ + u8 buf[] = { reg, data }; + struct i2c_msg msg = { .addr = state->priv->demod_address, + .flags = 0, .buf = buf, .len = 2 }; + int ret; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d i2c wr @0x%02x=0x%02x\n", + __func__, state->demod, reg, data); + + ret = i2c_transfer(state->priv->i2c, &msg, 1); + if (ret < 0) { + dev_warn(&state->priv->i2c->dev, + "%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n", + KBUILD_MODNAME, state->demod, ret, reg, data); + return ret; + } + return 0; +} + +static int cx24117_writecmd(struct cx24117_state *state, + struct cx24117_cmd *cmd) +{ + struct i2c_msg msg; + u8 buf[CX24117_ARGLEN+1]; + int ret; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d i2c wr cmd len=%d\n", + __func__, state->demod, cmd->len); + + buf[0] = CX24117_REG_COMMAND; + memcpy(&buf[1], cmd->args, cmd->len); + + msg.addr = state->priv->demod_address; + msg.flags = 0; + msg.len = cmd->len+1; + msg.buf = buf; + ret = i2c_transfer(state->priv->i2c, &msg, 1); + if (ret < 0) { + dev_warn(&state->priv->i2c->dev, + "%s: demod%d i2c wr cmd err(%i) len=%d\n", + KBUILD_MODNAME, state->demod, ret, cmd->len); + return ret; + } + return 0; +} + +static int cx24117_readreg(struct cx24117_state *state, u8 reg) +{ + int ret; + u8 recv = 0; + struct i2c_msg msg[] = { + { .addr = state->priv->demod_address, .flags = 0, + .buf = ®, .len = 1 }, + { .addr = state->priv->demod_address, .flags = I2C_M_RD, + .buf = &recv, .len = 1 } + }; + + ret = i2c_transfer(state->priv->i2c, msg, 2); + if (ret < 0) { + dev_warn(&state->priv->i2c->dev, + "%s: demod%d i2c rd err(%d) @0x%x\n", + KBUILD_MODNAME, state->demod, ret, reg); + return ret; + } + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n", + __func__, state->demod, reg, recv); + + return recv; +} + +static int cx24117_readregN(struct cx24117_state *state, + u8 reg, u8 *buf, int len) +{ + int ret; + struct i2c_msg msg[] = { + { .addr = state->priv->demod_address, .flags = 0, + .buf = ®, .len = 1 }, + { .addr = state->priv->demod_address, .flags = I2C_M_RD, + .buf = buf, .len = len } + }; + + ret = i2c_transfer(state->priv->i2c, msg, 2); + if (ret < 0) { + dev_warn(&state->priv->i2c->dev, + "%s: demod%d i2c rd err(%d) @0x%x\n", + KBUILD_MODNAME, state->demod, ret, reg); + return ret; + } + return 0; +} + +static int cx24117_set_inversion(struct cx24117_state *state, + fe_spectral_inversion_t inversion) +{ + dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", + __func__, inversion, state->demod); + + switch (inversion) { + case INVERSION_OFF: + state->dnxt.inversion_val = 0x00; + break; + case INVERSION_ON: + state->dnxt.inversion_val = 0x04; + break; + case INVERSION_AUTO: + state->dnxt.inversion_val = 0x0C; + break; + default: + return -EINVAL; + } + + state->dnxt.inversion = inversion; + + return 0; +} + +static int cx24117_lookup_fecmod(struct cx24117_state *state, + fe_delivery_system_t d, fe_modulation_t m, fe_code_rate_t f) +{ + int i, ret = -EINVAL; + + dev_dbg(&state->priv->i2c->dev, + "%s(demod(0x%02x,0x%02x) demod%d\n", + __func__, m, f, state->demod); + + for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) { + if ((d == cx24117_modfec_modes[i].delivery_system) && + (m == cx24117_modfec_modes[i].modulation) && + (f == cx24117_modfec_modes[i].fec)) { + ret = i; + break; + } + } + + return ret; +} + +static int cx24117_set_fec(struct cx24117_state *state, + fe_delivery_system_t delsys, fe_modulation_t mod, fe_code_rate_t fec) +{ + int ret; + + dev_dbg(&state->priv->i2c->dev, + "%s(0x%02x,0x%02x) demod%d\n", + __func__, mod, fec, state->demod); + + ret = cx24117_lookup_fecmod(state, delsys, mod, fec); + if (ret < 0) + return ret; + + state->dnxt.fec = fec; + state->dnxt.fec_val = cx24117_modfec_modes[ret].val; + state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask; + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__, + state->demod, state->dnxt.fec_mask, state->dnxt.fec_val); + + return 0; +} + +static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate) +{ + dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", + __func__, rate, state->demod); + + state->dnxt.symbol_rate = rate; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d symbol_rate = %d\n", + __func__, state->demod, rate); + + return 0; +} + +static int cx24117_load_firmware(struct dvb_frontend *fe, + const struct firmware *fw); + +static int cx24117_firmware_ondemand(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + const struct firmware *fw; + int ret = 0; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n", + __func__, state->demod, state->priv->skip_fw_load); + + if (state->priv->skip_fw_load) + return 0; + + /* check if firmware if already running */ + if (cx24117_readreg(state, 0xeb) != 0xa) { + /* Load firmware */ + /* request the firmware, this will block until loaded */ + dev_dbg(&state->priv->i2c->dev, + "%s: Waiting for firmware upload (%s)...\n", + __func__, CX24117_DEFAULT_FIRMWARE); + ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE, + state->priv->i2c->dev.parent); + dev_dbg(&state->priv->i2c->dev, + "%s: Waiting for firmware upload(2)...\n", __func__); + if (ret) { + dev_err(&state->priv->i2c->dev, + "%s: No firmware uploaded " + "(timeout or file not found?)\n", __func__); + return ret; + } + + /* Make sure we don't recurse back through here + * during loading */ + state->priv->skip_fw_load = 1; + + ret = cx24117_load_firmware(fe, fw); + if (ret) + dev_err(&state->priv->i2c->dev, + "%s: Writing firmware failed\n", __func__); + release_firmware(fw); + + dev_info(&state->priv->i2c->dev, + "%s: Firmware upload %s\n", __func__, + ret == 0 ? "complete" : "failed"); + + /* Ensure firmware is always loaded if required */ + state->priv->skip_fw_load = 0; + } + + return ret; +} + +/* Take a basic firmware command structure, format it + * and forward it for processing + */ +static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe, + struct cx24117_cmd *cmd) +{ + struct cx24117_state *state = fe->demodulator_priv; + int i, ret; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", + __func__, state->demod); + + /* Load the firmware if required */ + ret = cx24117_firmware_ondemand(fe); + if (ret != 0) + return ret; + + /* Write the command */ + cx24117_writecmd(state, cmd); + + /* Start execution and wait for cmd to terminate */ + cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01); + i = 0; + while (cx24117_readreg(state, CX24117_REG_EXECUTE)) { + msleep(20); + if (i++ > 40) { + /* Avoid looping forever if the firmware does + not respond */ + dev_warn(&state->priv->i2c->dev, + "%s() Firmware not responding\n", __func__); + return -EIO; + } + } + return 0; +} + +static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd) +{ + struct cx24117_state *state = fe->demodulator_priv; + int ret; + + mutex_lock(&state->priv->fe_lock); + ret = cx24117_cmd_execute_nolock(fe, cmd); + mutex_unlock(&state->priv->fe_lock); + + return ret; +} + +static int cx24117_load_firmware(struct dvb_frontend *fe, + const struct firmware *fw) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + int i, ret; + unsigned char vers[4]; + + struct i2c_msg msg; + u8 *buf; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n", + __func__, state->demod, fw->size, fw->data[0], fw->data[1], + fw->data[fw->size - 2], fw->data[fw->size - 1]); + + cx24117_writereg(state, 0xea, 0x00); + cx24117_writereg(state, 0xea, 0x01); + cx24117_writereg(state, 0xea, 0x00); + + cx24117_writereg(state, 0xce, 0x92); + + cx24117_writereg(state, 0xfb, 0x00); + cx24117_writereg(state, 0xfc, 0x00); + + cx24117_writereg(state, 0xc3, 0x04); + cx24117_writereg(state, 0xc4, 0x04); + + cx24117_writereg(state, 0xce, 0x00); + cx24117_writereg(state, 0xcf, 0x00); + + cx24117_writereg(state, 0xea, 0x00); + cx24117_writereg(state, 0xeb, 0x0c); + cx24117_writereg(state, 0xec, 0x06); + cx24117_writereg(state, 0xed, 0x05); + cx24117_writereg(state, 0xee, 0x03); + cx24117_writereg(state, 0xef, 0x05); + + cx24117_writereg(state, 0xf3, 0x03); + cx24117_writereg(state, 0xf4, 0x44); + + cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04); + cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02); + + cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04); + cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02); + + cx24117_writereg(state, 0xf2, 0x04); + cx24117_writereg(state, 0xe8, 0x02); + cx24117_writereg(state, 0xea, 0x01); + cx24117_writereg(state, 0xc8, 0x00); + cx24117_writereg(state, 0xc9, 0x00); + cx24117_writereg(state, 0xca, 0x00); + cx24117_writereg(state, 0xcb, 0x00); + cx24117_writereg(state, 0xcc, 0x00); + cx24117_writereg(state, 0xcd, 0x00); + cx24117_writereg(state, 0xe4, 0x03); + cx24117_writereg(state, 0xeb, 0x0a); + + cx24117_writereg(state, 0xfb, 0x00); + cx24117_writereg(state, 0xe0, 0x76); + cx24117_writereg(state, 0xf7, 0x81); + cx24117_writereg(state, 0xf8, 0x00); + cx24117_writereg(state, 0xf9, 0x00); + + buf = kmalloc(fw->size + 1, GFP_KERNEL); + if (buf == NULL) { + state->priv->skip_fw_load = 0; + return -ENOMEM; + } + + /* fw upload reg */ + buf[0] = 0xfa; + memcpy(&buf[1], fw->data, fw->size); + + /* prepare i2c message to send */ + msg.addr = state->priv->demod_address; + msg.flags = 0; + msg.len = fw->size + 1; + msg.buf = buf; + + /* send fw */ + ret = i2c_transfer(state->priv->i2c, &msg, 1); + if (ret < 0) + return ret; + + kfree(buf); + + cx24117_writereg(state, 0xf7, 0x0c); + cx24117_writereg(state, 0xe0, 0x00); + + /* CMD 1B */ + cmd.args[0] = 0x1b; + cmd.args[1] = 0x00; + cmd.args[2] = 0x01; + cmd.args[3] = 0x00; + cmd.len = 4; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + + /* CMD 10 */ + cmd.args[0] = CMD_SET_VCO; + cmd.args[1] = 0x06; + cmd.args[2] = 0x2b; + cmd.args[3] = 0xd8; + cmd.args[4] = 0xa5; + cmd.args[5] = 0xee; + cmd.args[6] = 0x03; + cmd.args[7] = 0x9d; + cmd.args[8] = 0xfc; + cmd.args[9] = 0x06; + cmd.args[10] = 0x02; + cmd.args[11] = 0x9d; + cmd.args[12] = 0xfc; + cmd.len = 13; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + + /* CMD 15 */ + cmd.args[0] = 0x15; + cmd.args[1] = 0x00; + cmd.args[2] = 0x01; + cmd.args[3] = 0x00; + cmd.args[4] = 0x00; + cmd.args[5] = 0x01; + cmd.args[6] = 0x01; + cmd.args[7] = 0x01; + cmd.args[8] = 0x00; + cmd.args[9] = 0x05; + cmd.args[10] = 0x02; + cmd.args[11] = 0x02; + cmd.args[12] = 0x00; + cmd.len = 13; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + + /* CMD 13 */ + cmd.args[0] = CMD_MPEGCONFIG; + cmd.args[1] = 0x00; + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.args[4] = 0x01; + cmd.args[5] = 0x00; + cmd.len = 6; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + + /* CMD 14 */ + for (i = 0; i < 2; i++) { + cmd.args[0] = CMD_TUNERINIT; + cmd.args[1] = (u8) i; + cmd.args[2] = 0x00; + cmd.args[3] = 0x05; + cmd.args[4] = 0x00; + cmd.args[5] = 0x00; + cmd.args[6] = 0x55; + cmd.args[7] = 0x00; + cmd.len = 8; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + } + + cx24117_writereg(state, 0xce, 0xc0); + cx24117_writereg(state, 0xcf, 0x00); + cx24117_writereg(state, 0xe5, 0x04); + + /* Firmware CMD 35: Get firmware version */ + cmd.args[0] = CMD_UPDFWVERS; + cmd.len = 2; + for (i = 0; i < 4; i++) { + cmd.args[1] = i; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto error; + vers[i] = cx24117_readreg(state, 0x33); + } + dev_info(&state->priv->i2c->dev, + "%s: FW version %i.%i.%i.%i\n", __func__, + vers[0], vers[1], vers[2], vers[3]); + return 0; +error: + state->priv->skip_fw_load = 0; + dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__); + return ret; +} + +static int cx24117_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct cx24117_state *state = fe->demodulator_priv; + int lock; + + lock = cx24117_readreg(state, + (state->demod == 0) ? CX24117_REG_SSTATUS0 : + CX24117_REG_SSTATUS1) & + CX24117_STATUS_MASK; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n", + __func__, state->demod, lock); + + *status = 0; + + if (lock & CX24117_HAS_SIGNAL) + *status |= FE_HAS_SIGNAL; + if (lock & CX24117_HAS_CARRIER) + *status |= FE_HAS_CARRIER; + if (lock & CX24117_HAS_VITERBI) + *status |= FE_HAS_VITERBI; + if (lock & CX24117_HAS_SYNCLOCK) + *status |= FE_HAS_SYNC | FE_HAS_LOCK; + + return 0; +} + +static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct cx24117_state *state = fe->demodulator_priv; + int ret; + u8 buf[4]; + u8 base_reg = (state->demod == 0) ? + CX24117_REG_BER4_0 : + CX24117_REG_BER4_1; + + ret = cx24117_readregN(state, base_reg, buf, 4); + if (ret != 0) + return ret; + + *ber = (buf[0] << 24) | (buf[1] << 16) | + (buf[1] << 8) | buf[0]; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n", + __func__, state->demod, *ber); + + return 0; +} + +static int cx24117_read_signal_strength(struct dvb_frontend *fe, + u16 *signal_strength) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + int ret; + u16 sig_reading; + u8 buf[2]; + u8 reg = (state->demod == 0) ? + CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1; + + /* Firmware CMD 1A */ + cmd.args[0] = 0x1a; + cmd.args[1] = (u8) state->demod; + cmd.len = 2; + ret = cx24117_cmd_execute(fe, &cmd); + if (ret != 0) + return ret; + + ret = cx24117_readregN(state, reg, buf, 2); + if (ret != 0) + return ret; + sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1]; + + *signal_strength = -100 * sig_reading + 94324; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d raw / cooked = 0x%04x / 0x%04x\n", + __func__, state->demod, sig_reading, *signal_strength); + + return 0; +} + +static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct cx24117_state *state = fe->demodulator_priv; + int ret; + u8 buf[2]; + u8 reg = (state->demod == 0) ? + CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1; + + ret = cx24117_readregN(state, reg, buf, 2); + if (ret != 0) + return ret; + + *snr = (buf[0] << 8) | buf[1]; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d snr = 0x%04x\n", + __func__, state->demod, *snr); + + return ret; +} + +static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct cx24117_state *state = fe->demodulator_priv; + fe_delivery_system_t delsys = fe->dtv_property_cache.delivery_system; + int ret; + u8 buf[2]; + u8 reg = (state->demod == 0) ? + CX24117_REG_DVBS_UCB2_0 : + CX24117_REG_DVBS_UCB2_1; + + switch (delsys) { + case SYS_DVBS: + break; + case SYS_DVBS2: + reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0); + break; + default: + return -EINVAL; + } + + ret = cx24117_readregN(state, reg, buf, 2); + if (ret != 0) + return ret; + *ucblocks = (buf[0] << 8) | buf[1]; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n", + __func__, state->demod, *ucblocks); + + return 0; +} + +/* Overwrite the current tuning params, we are about to tune */ +static void cx24117_clone_params(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + state->dcur = state->dnxt; +} + +/* Wait for LNB */ +static int cx24117_wait_for_lnb(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + int i; + u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 : + CX24117_REG_QSTATUS1; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n", + __func__, state->demod, cx24117_readreg(state, reg)); + + /* Wait for up to 300 ms */ + for (i = 0; i < 10; i++) { + val = cx24117_readreg(state, reg) & 0x01; + if (val != 0) + return 0; + msleep(30); + } + + dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n", + KBUILD_MODNAME, state->demod); + + return -ETIMEDOUT; /* -EBUSY ? */ +} + +static int cx24117_set_voltage(struct dvb_frontend *fe, + fe_sec_voltage_t voltage) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + int ret; + u8 reg = (state->demod == 0) ? 0x10 : 0x20; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n", + __func__, state->demod, + voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" : + voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : + "SEC_VOLTAGE_OFF"); + + /* CMD 32 */ + cmd.args[0] = 0x32; + cmd.args[1] = reg; + cmd.args[2] = reg; + cmd.len = 3; + ret = cx24117_cmd_execute(fe, &cmd); + if (ret) + return ret; + + if ((voltage == SEC_VOLTAGE_13) || + (voltage == SEC_VOLTAGE_18)) { + /* CMD 33 */ + cmd.args[0] = 0x33; + cmd.args[1] = reg; + cmd.args[2] = reg; + cmd.len = 3; + ret = cx24117_cmd_execute(fe, &cmd); + if (ret != 0) + return ret; + + ret = cx24117_wait_for_lnb(fe); + if (ret != 0) + return ret; + + /* Wait for voltage/min repeat delay */ + msleep(100); + + /* CMD 22 - CMD_LNBDCLEVEL */ + cmd.args[0] = CMD_LNBDCLEVEL; + cmd.args[1] = state->demod ? 0 : 1; + cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00); + cmd.len = 3; + + /* Min delay time before DiSEqC send */ + msleep(20); + } else { + cmd.args[0] = 0x33; + cmd.args[1] = 0x00; + cmd.args[2] = reg; + cmd.len = 3; + } + + return cx24117_cmd_execute(fe, &cmd); +} + +static int cx24117_set_tone(struct dvb_frontend *fe, + fe_sec_tone_mode_t tone) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + int ret; + + dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n", + __func__, state->demod, tone); + if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) { + dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n", + KBUILD_MODNAME, state->demod, tone); + return -EINVAL; + } + + /* Wait for LNB ready */ + ret = cx24117_wait_for_lnb(fe); + if (ret != 0) + return ret; + + /* Min delay time after DiSEqC send */ + msleep(20); + + /* Set the tone */ + /* CMD 23 - CMD_SET_TONE */ + cmd.args[0] = CMD_SET_TONE; + cmd.args[1] = (state->demod ? 0 : 1); + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.len = 5; + switch (tone) { + case SEC_TONE_ON: + cmd.args[4] = 0x01; + break; + case SEC_TONE_OFF: + cmd.args[4] = 0x00; + break; + } + + msleep(20); + + return cx24117_cmd_execute(fe, &cmd); +} + +/* Initialise DiSEqC */ +static int cx24117_diseqc_init(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + + /* Prepare a DiSEqC command */ + state->dsec_cmd.args[0] = CMD_LNBSEND; + + /* demod */ + state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1; + + /* DiSEqC burst */ + state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A; + + /* Unknown */ + state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02; + state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00; + + /* Continuation flag? */ + state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00; + + /* DiSEqC message length */ + state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00; + + /* Command length */ + state->dsec_cmd.len = 7; + + return 0; +} + +/* Send DiSEqC message */ +static int cx24117_send_diseqc_msg(struct dvb_frontend *fe, + struct dvb_diseqc_master_cmd *d) +{ + struct cx24117_state *state = fe->demodulator_priv; + int i, ret; + + /* Dump DiSEqC message */ + dev_dbg(&state->priv->i2c->dev, "%s: demod %d (", + __func__, state->demod); + for (i = 0; i < d->msg_len; i++) + dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]); + dev_dbg(&state->priv->i2c->dev, ")\n"); + + /* Validate length */ + if (d->msg_len > 15) + return -EINVAL; + + /* DiSEqC message */ + for (i = 0; i < d->msg_len; i++) + state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i]; + + /* DiSEqC message length */ + state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len; + + /* Command length */ + state->dsec_cmd.len = CX24117_DISEQC_MSGOFS + + state->dsec_cmd.args[CX24117_DISEQC_MSGLEN]; + + /* + * Message is sent with derived else cached burst + * + * WRITE PORT GROUP COMMAND 38 + * + * 0/A/A: E0 10 38 F0..F3 + * 1/B/B: E0 10 38 F4..F7 + * 2/C/A: E0 10 38 F8..FB + * 3/D/B: E0 10 38 FC..FF + * + * databyte[3]= 8421:8421 + * ABCD:WXYZ + * CLR :SET + * + * WX= PORT SELECT 0..3 (X=TONEBURST) + * Y = VOLTAGE (0=13V, 1=18V) + * Z = BAND (0=LOW, 1=HIGH(22K)) + */ + if (d->msg_len >= 4 && d->msg[2] == 0x38) + state->dsec_cmd.args[CX24117_DISEQC_BURST] = + ((d->msg[3] & 4) >> 2); + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n", + __func__, state->demod, + state->dsec_cmd.args[CX24117_DISEQC_BURST]); + + /* Wait for LNB ready */ + ret = cx24117_wait_for_lnb(fe); + if (ret != 0) + return ret; + + /* Wait for voltage/min repeat delay */ + msleep(100); + + /* Command */ + ret = cx24117_cmd_execute(fe, &state->dsec_cmd); + if (ret != 0) + return ret; + /* + * Wait for send + * + * Eutelsat spec: + * >15ms delay + (XXX determine if FW does this, see set_tone) + * 13.5ms per byte + + * >15ms delay + + * 12.5ms burst + + * >15ms delay (XXX determine if FW does this, see set_tone) + */ + msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60); + + return 0; +} + +/* Send DiSEqC burst */ +static int cx24117_diseqc_send_burst(struct dvb_frontend *fe, + fe_sec_mini_cmd_t burst) +{ + struct cx24117_state *state = fe->demodulator_priv; + + dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n", + __func__, burst, state->demod); + + /* DiSEqC burst */ + if (burst == SEC_MINI_A) + state->dsec_cmd.args[CX24117_DISEQC_BURST] = + CX24117_DISEQC_MINI_A; + else if (burst == SEC_MINI_B) + state->dsec_cmd.args[CX24117_DISEQC_BURST] = + CX24117_DISEQC_MINI_B; + else + return -EINVAL; + + return 0; +} + +static int cx24117_get_priv(struct cx24117_priv **priv, + struct i2c_adapter *i2c, u8 client_address) +{ + int ret; + + mutex_lock(&cx24117_list_mutex); + ret = hybrid_tuner_request_state(struct cx24117_priv, (*priv), + hybrid_tuner_instance_list, i2c, client_address, "cx24117"); + mutex_unlock(&cx24117_list_mutex); + + return ret; +} + +static void cx24117_release_priv(struct cx24117_priv *priv) +{ + mutex_lock(&cx24117_list_mutex); + if (priv != NULL) + hybrid_tuner_release_state(priv); + mutex_unlock(&cx24117_list_mutex); +} + +static void cx24117_release(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + dev_dbg(&state->priv->i2c->dev, "%s demod%d\n", + __func__, state->demod); + cx24117_release_priv(state->priv); + kfree(state); +} + +static struct dvb_frontend_ops cx24117_ops; + +struct dvb_frontend *cx24117_attach(const struct cx24117_config *config, + struct i2c_adapter *i2c) +{ + struct cx24117_state *state = NULL; + struct cx24117_priv *priv = NULL; + int demod = 0; + + /* get the common data struct for both demods */ + demod = cx24117_get_priv(&priv, i2c, config->demod_address); + + switch (demod) { + case 0: + dev_err(&state->priv->i2c->dev, + "%s: Error attaching frontend %d\n", + KBUILD_MODNAME, demod); + goto error1; + break; + case 1: + /* new priv instance */ + priv->i2c = i2c; + priv->demod_address = config->demod_address; + mutex_init(&priv->fe_lock); + break; + default: + /* existing priv instance */ + break; + } + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL); + if (state == NULL) + goto error2; + + state->demod = demod - 1; + state->priv = priv; + + /* test i2c bus for ack */ + if (demod == 0) { + if (cx24117_readreg(state, 0x00) < 0) + goto error3; + } + + dev_info(&state->priv->i2c->dev, + "%s: Attaching frontend %d\n", + KBUILD_MODNAME, state->demod); + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, &cx24117_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + return &state->frontend; + +error3: + kfree(state); +error2: + cx24117_release_priv(priv); +error1: + return NULL; +} +EXPORT_SYMBOL_GPL(cx24117_attach); + +/* + * Initialise or wake up device + * + * Power config will reset and load initial firmware if required + */ +static int cx24117_initfe(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + int ret; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", + __func__, state->demod); + + mutex_lock(&state->priv->fe_lock); + + /* Firmware CMD 36: Power config */ + cmd.args[0] = CMD_TUNERSLEEP; + cmd.args[1] = (state->demod ? 1 : 0); + cmd.args[2] = 0; + cmd.len = 3; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto exit; + + ret = cx24117_diseqc_init(fe); + if (ret != 0) + goto exit; + + /* CMD 3C */ + cmd.args[0] = 0x3c; + cmd.args[1] = (state->demod ? 1 : 0); + cmd.args[2] = 0x10; + cmd.args[3] = 0x10; + cmd.len = 4; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + if (ret != 0) + goto exit; + + /* CMD 34 */ + cmd.args[0] = 0x34; + cmd.args[1] = (state->demod ? 1 : 0); + cmd.args[2] = CX24117_OCC; + cmd.len = 3; + ret = cx24117_cmd_execute_nolock(fe, &cmd); + +exit: + mutex_unlock(&state->priv->fe_lock); + + return ret; +} + +/* + * Put device to sleep + */ +static int cx24117_sleep(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct cx24117_cmd cmd; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", + __func__, state->demod); + + /* Firmware CMD 36: Power config */ + cmd.args[0] = CMD_TUNERSLEEP; + cmd.args[1] = (state->demod ? 1 : 0); + cmd.args[2] = 1; + cmd.len = 3; + return cx24117_cmd_execute(fe, &cmd); +} + +/* dvb-core told us to tune, the tv property cache will be complete, + * it's safe for is to pull values and use them for tuning purposes. + */ +static int cx24117_set_frontend(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct cx24117_cmd cmd; + fe_status_t tunerstat; + int i, status, ret, retune = 1; + u8 reg_clkdiv, reg_ratediv; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", + __func__, state->demod); + + switch (c->delivery_system) { + case SYS_DVBS: + dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n", + __func__, state->demod); + + /* Only QPSK is supported for DVB-S */ + if (c->modulation != QPSK) { + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d unsupported modulation (%d)\n", + __func__, state->demod, c->modulation); + return -EINVAL; + } + + /* Pilot doesn't exist in DVB-S, turn bit off */ + state->dnxt.pilot_val = CX24117_PILOT_OFF; + + /* DVB-S only supports 0.35 */ + state->dnxt.rolloff_val = CX24117_ROLLOFF_035; + break; + + case SYS_DVBS2: + dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n", + __func__, state->demod); + + /* + * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2, + * but not hardware auto detection + */ + if (c->modulation != PSK_8 && c->modulation != QPSK) { + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d unsupported modulation (%d)\n", + __func__, state->demod, c->modulation); + return -EOPNOTSUPP; + } + + switch (c->pilot) { + case PILOT_AUTO: + state->dnxt.pilot_val = CX24117_PILOT_AUTO; + break; + case PILOT_OFF: + state->dnxt.pilot_val = CX24117_PILOT_OFF; + break; + case PILOT_ON: + state->dnxt.pilot_val = CX24117_PILOT_ON; + break; + default: + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d unsupported pilot mode (%d)\n", + __func__, state->demod, c->pilot); + return -EOPNOTSUPP; + } + + switch (c->rolloff) { + case ROLLOFF_20: + state->dnxt.rolloff_val = CX24117_ROLLOFF_020; + break; + case ROLLOFF_25: + state->dnxt.rolloff_val = CX24117_ROLLOFF_025; + break; + case ROLLOFF_35: + state->dnxt.rolloff_val = CX24117_ROLLOFF_035; + break; + case ROLLOFF_AUTO: + state->dnxt.rolloff_val = CX24117_ROLLOFF_035; + /* soft-auto rolloff */ + retune = 3; + break; + default: + dev_warn(&state->priv->i2c->dev, + "%s: demod%d unsupported rolloff (%d)\n", + KBUILD_MODNAME, state->demod, c->rolloff); + return -EOPNOTSUPP; + } + break; + + default: + dev_warn(&state->priv->i2c->dev, + "%s: demod %d unsupported delivery system (%d)\n", + KBUILD_MODNAME, state->demod, c->delivery_system); + return -EINVAL; + } + + state->dnxt.delsys = c->delivery_system; + state->dnxt.modulation = c->modulation; + state->dnxt.frequency = c->frequency; + state->dnxt.pilot = c->pilot; + state->dnxt.rolloff = c->rolloff; + + ret = cx24117_set_inversion(state, c->inversion); + if (ret != 0) + return ret; + + ret = cx24117_set_fec(state, + c->delivery_system, c->modulation, c->fec_inner); + if (ret != 0) + return ret; + + ret = cx24117_set_symbolrate(state, c->symbol_rate); + if (ret != 0) + return ret; + + /* discard the 'current' tuning parameters and prepare to tune */ + cx24117_clone_params(fe); + + dev_dbg(&state->priv->i2c->dev, + "%s: delsys = %d\n", __func__, state->dcur.delsys); + dev_dbg(&state->priv->i2c->dev, + "%s: modulation = %d\n", __func__, state->dcur.modulation); + dev_dbg(&state->priv->i2c->dev, + "%s: frequency = %d\n", __func__, state->dcur.frequency); + dev_dbg(&state->priv->i2c->dev, + "%s: pilot = %d (val = 0x%02x)\n", __func__, + state->dcur.pilot, state->dcur.pilot_val); + dev_dbg(&state->priv->i2c->dev, + "%s: retune = %d\n", __func__, retune); + dev_dbg(&state->priv->i2c->dev, + "%s: rolloff = %d (val = 0x%02x)\n", __func__, + state->dcur.rolloff, state->dcur.rolloff_val); + dev_dbg(&state->priv->i2c->dev, + "%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate); + dev_dbg(&state->priv->i2c->dev, + "%s: FEC = %d (mask/val = 0x%02x/0x%02x)\n", __func__, + state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val); + dev_dbg(&state->priv->i2c->dev, + "%s: Inversion = %d (val = 0x%02x)\n", __func__, + state->dcur.inversion, state->dcur.inversion_val); + + /* Prepare a tune request */ + cmd.args[0] = CMD_TUNEREQUEST; + + /* demod */ + cmd.args[1] = state->demod; + + /* Frequency */ + cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16; + cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8; + cmd.args[4] = (state->dcur.frequency & 0x0000ff); + + /* Symbol Rate */ + cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8; + cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff); + + /* Automatic Inversion */ + cmd.args[7] = state->dcur.inversion_val; + + /* Modulation / FEC / Pilot */ + cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val; + + cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8; + cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff; + + cmd.args[11] = state->dcur.rolloff_val; + cmd.args[12] = state->dcur.fec_mask; + + if (state->dcur.symbol_rate > 30000000) { + reg_ratediv = 0x04; + reg_clkdiv = 0x02; + } else if (state->dcur.symbol_rate > 10000000) { + reg_ratediv = 0x06; + reg_clkdiv = 0x03; + } else { + reg_ratediv = 0x0a; + reg_clkdiv = 0x05; + } + + cmd.args[13] = reg_ratediv; + cmd.args[14] = reg_clkdiv; + + cx24117_writereg(state, (state->demod == 0) ? + CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv); + cx24117_writereg(state, (state->demod == 0) ? + CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv); + + cmd.args[15] = CX24117_PNE; + cmd.len = 16; + + do { + /* Reset status register */ + status = cx24117_readreg(state, (state->demod == 0) ? + CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) & + CX24117_SIGNAL_MASK; + + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d status_setfe = %02x\n", + __func__, state->demod, status); + + cx24117_writereg(state, (state->demod == 0) ? + CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status); + + /* Tune */ + ret = cx24117_cmd_execute(fe, &cmd); + if (ret != 0) + break; + + /* + * Wait for up to 500 ms before retrying + * + * If we are able to tune then generally it occurs within 100ms. + * If it takes longer, try a different rolloff setting. + */ + for (i = 0; i < 50; i++) { + cx24117_read_status(fe, &tunerstat); + status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC); + if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) { + dev_dbg(&state->priv->i2c->dev, + "%s() demod%d tuned\n", + __func__, state->demod); + return 0; + } + msleep(20); + } + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n", + __func__, state->demod); + + /* try next rolloff value */ + if (state->dcur.rolloff == 3) + cmd.args[11]--; + + } while (--retune); + return -EINVAL; +} + +static int cx24117_tune(struct dvb_frontend *fe, bool re_tune, + unsigned int mode_flags, unsigned int *delay, fe_status_t *status) +{ + struct cx24117_state *state = fe->demodulator_priv; + + dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n", + __func__, state->demod); + + *delay = HZ / 5; + if (re_tune) { + int ret = cx24117_set_frontend(fe); + if (ret) + return ret; + } + return cx24117_read_status(fe, status); +} + +static int cx24117_get_algo(struct dvb_frontend *fe) +{ + return DVBFE_ALGO_HW; +} + +static int cx24117_get_frontend(struct dvb_frontend *fe) +{ + struct cx24117_state *state = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + struct cx24117_cmd cmd; + u8 reg, st, inv; + int ret, idx; + unsigned int freq; + short srate_os, freq_os; + + u8 buf[0x1f-4]; + + cmd.args[0] = 0x1c; + cmd.args[1] = (u8) state->demod; + cmd.len = 2; + ret = cx24117_cmd_execute(fe, &cmd); + if (ret != 0) + return ret; + + /* read all required regs at once */ + reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1; + ret = cx24117_readregN(state, reg, buf, 0x1f-4); + if (ret != 0) + return ret; + + st = buf[5]; + + /* get spectral inversion */ + inv = (((state->demod == 0) ? ~st : st) >> 6) & 1; + if (inv == 0) + c->inversion = INVERSION_OFF; + else + c->inversion = INVERSION_ON; + + /* modulation and fec */ + idx = st & 0x3f; + if (c->delivery_system == SYS_DVBS2) { + if (idx > 11) + idx += 9; + else + idx += 7; + } + + c->modulation = cx24117_modfec_modes[idx].modulation; + c->fec_inner = cx24117_modfec_modes[idx].fec; + + /* frequency */ + freq = (buf[0] << 16) | (buf[1] << 8) | buf[2]; + freq_os = (buf[8] << 8) | buf[9]; + c->frequency = freq + freq_os; + + /* symbol rate */ + srate_os = (buf[10] << 8) | buf[11]; + c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate; + return 0; +} + +static struct dvb_frontend_ops cx24117_ops = { + .delsys = { SYS_DVBS, SYS_DVBS2 }, + .info = { + .name = "Conexant CX24117/CX24132", + .frequency_min = 950000, + .frequency_max = 2150000, + .frequency_stepsize = 1011, /* kHz for QPSK frontends */ + .frequency_tolerance = 5000, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | + FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_2G_MODULATION | + FE_CAN_QPSK | FE_CAN_RECOVER + }, + + .release = cx24117_release, + + .init = cx24117_initfe, + .sleep = cx24117_sleep, + .read_status = cx24117_read_status, + .read_ber = cx24117_read_ber, + .read_signal_strength = cx24117_read_signal_strength, + .read_snr = cx24117_read_snr, + .read_ucblocks = cx24117_read_ucblocks, + .set_tone = cx24117_set_tone, + .set_voltage = cx24117_set_voltage, + .diseqc_send_master_cmd = cx24117_send_diseqc_msg, + .diseqc_send_burst = cx24117_diseqc_send_burst, + .get_frontend_algo = cx24117_get_algo, + .tune = cx24117_tune, + + .set_frontend = cx24117_set_frontend, + .get_frontend = cx24117_get_frontend, +}; + + +MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware"); +MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.1"); +MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE); + diff --git a/drivers/media/dvb-frontends/cx24117.h b/drivers/media/dvb-frontends/cx24117.h new file mode 100644 index 000000000000..4e59e9574fa7 --- /dev/null +++ b/drivers/media/dvb-frontends/cx24117.h @@ -0,0 +1,47 @@ +/* + Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver + + Copyright (C) 2013 Luis Alves <ljalvs@gmail.com> + (based on cx24116.h by Steven Toth) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#ifndef CX24117_H +#define CX24117_H + +#include <linux/kconfig.h> +#include <linux/dvb/frontend.h> + +struct cx24117_config { + /* the demodulator's i2c address */ + u8 demod_address; +}; + +#if IS_ENABLED(CONFIG_DVB_CX24117) +extern struct dvb_frontend *cx24117_attach( + const struct cx24117_config *config, + struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *cx24117_attach( + const struct cx24117_config *config, + struct i2c_adapter *i2c) +{ + dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif /* CX24117_H */ diff --git a/drivers/media/dvb-frontends/cx24123.c b/drivers/media/dvb-frontends/cx24123.c index a771da3e9f99..72fb5838cae0 100644 --- a/drivers/media/dvb-frontends/cx24123.c +++ b/drivers/media/dvb-frontends/cx24123.c @@ -739,7 +739,7 @@ static int cx24123_set_voltage(struct dvb_frontend *fe, return 0; default: return -EINVAL; - }; + } return 0; } diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c index 7ca5c69dd200..03930d5e9fea 100644 --- a/drivers/media/dvb-frontends/cxd2820r_core.c +++ b/drivers/media/dvb-frontends/cxd2820r_core.c @@ -21,21 +21,31 @@ #include "cxd2820r_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* write multiple registers */ static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg, u8 *val, int len) { int ret; - u8 buf[len+1]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = i2c, .flags = 0, - .len = sizeof(buf), + .len = len + 1, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -55,7 +65,7 @@ static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg, u8 *val, int len) { int ret; - u8 buf[len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[2] = { { .addr = i2c, @@ -65,11 +75,18 @@ static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg, }, { .addr = i2c, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = len, .buf = buf, } }; + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, buf, len); diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c index 6201c59a78dd..e540cfb13bac 100644 --- a/drivers/media/dvb-frontends/dib9000.c +++ b/drivers/media/dvb-frontends/dib9000.c @@ -649,9 +649,9 @@ static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 si b[2 * (size - 2) - 1] = '\0'; /* Bullet proof the buffer */ if (*b == '~') { b++; - dprintk(b); + dprintk("%s", b); } else - dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<emtpy>"); + dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<empty>"); return 1; } diff --git a/drivers/media/dvb-frontends/drxd_hard.c b/drivers/media/dvb-frontends/drxd_hard.c index 9a2134792cfa..959ae36403b8 100644 --- a/drivers/media/dvb-frontends/drxd_hard.c +++ b/drivers/media/dvb-frontends/drxd_hard.c @@ -46,10 +46,6 @@ #define DRX_I2C_MODEFLAGS 0xC0 #define DRX_I2C_FLAGS 0xF0 -#ifndef SIZEOF_ARRAY -#define SIZEOF_ARRAY(array) (sizeof((array))/sizeof((array)[0])) -#endif - #define DEFAULT_LOCK_TIMEOUT 1100 #define DRX_CHANNEL_AUTO 0 @@ -1018,7 +1014,7 @@ static int HI_CfgCommand(struct drxd_state *state) status = Write16(state, HI_RA_RAM_SRV_CMD__A, HI_RA_RAM_SRV_CMD_CONFIG, 0); else - status = HI_Command(state, HI_RA_RAM_SRV_CMD_CONFIG, 0); + status = HI_Command(state, HI_RA_RAM_SRV_CMD_CONFIG, NULL); mutex_unlock(&state->mutex); return status; } @@ -1039,7 +1035,7 @@ static int HI_ResetCommand(struct drxd_state *state) status = Write16(state, HI_RA_RAM_SRV_RST_KEY__A, HI_RA_RAM_SRV_RST_KEY_ACT, 0); if (status == 0) - status = HI_Command(state, HI_RA_RAM_SRV_CMD_RESET, 0); + status = HI_Command(state, HI_RA_RAM_SRV_CMD_RESET, NULL); mutex_unlock(&state->mutex); msleep(1); return status; @@ -2837,7 +2833,7 @@ static int drxd_init(struct dvb_frontend *fe) int err = 0; /* if (request_firmware(&state->fw, "drxd.fw", state->dev)<0) */ - return DRXD_init(state, 0, 0); + return DRXD_init(state, NULL, 0); err = DRXD_init(state, state->fw->data, state->fw->size); release_firmware(state->fw); @@ -2973,7 +2969,7 @@ struct dvb_frontend *drxd_attach(const struct drxd_config *config, mutex_init(&state->mutex); - if (Read16(state, 0, 0, 0) < 0) + if (Read16(state, 0, NULL, 0) < 0) goto error; state->frontend.ops = drxd_ops; diff --git a/drivers/media/dvb-frontends/drxk_hard.c b/drivers/media/dvb-frontends/drxk_hard.c index 082014de6875..d416c15691da 100644 --- a/drivers/media/dvb-frontends/drxk_hard.c +++ b/drivers/media/dvb-frontends/drxk_hard.c @@ -1083,7 +1083,7 @@ static int hi_cfg_command(struct drxk_state *state) SIO_HI_RA_RAM_PAR_1_PAR1_SEC_KEY); if (status < 0) goto error; - status = hi_command(state, SIO_HI_RA_RAM_CMD_CONFIG, 0); + status = hi_command(state, SIO_HI_RA_RAM_CMD_CONFIG, NULL); if (status < 0) goto error; @@ -2781,7 +2781,7 @@ static int ConfigureI2CBridge(struct drxk_state *state, bool b_enable_bridge) goto error; } - status = hi_command(state, SIO_HI_RA_RAM_CMD_BRDCTRL, 0); + status = hi_command(state, SIO_HI_RA_RAM_CMD_BRDCTRL, NULL); error: if (status < 0) diff --git a/drivers/media/dvb-frontends/itd1000.c b/drivers/media/dvb-frontends/itd1000.c index c1c3400b2173..cadcae4cff89 100644 --- a/drivers/media/dvb-frontends/itd1000.c +++ b/drivers/media/dvb-frontends/itd1000.c @@ -31,6 +31,9 @@ #include "itd1000.h" #include "itd1000_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); @@ -52,10 +55,18 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off)."); /* don't write more than one byte with flexcop behind */ static int itd1000_write_regs(struct itd1000_state *state, u8 reg, u8 v[], u8 len) { - u8 buf[1+len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = state->cfg->i2c_address, .flags = 0, .buf = buf, .len = len+1 }; + + if (1 + len > sizeof(buf)) { + printk(KERN_WARNING + "itd1000: i2c wr reg=%04x: len=%d is too big!\n", + reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], v, len); diff --git a/drivers/media/dvb-frontends/mt312.c b/drivers/media/dvb-frontends/mt312.c index ec388c1d6913..a74ac0ddb833 100644 --- a/drivers/media/dvb-frontends/mt312.c +++ b/drivers/media/dvb-frontends/mt312.c @@ -36,6 +36,8 @@ #include "mt312_priv.h" #include "mt312.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 struct mt312_state { struct i2c_adapter *i2c; @@ -96,9 +98,15 @@ static int mt312_write(struct mt312_state *state, const enum mt312_reg_addr reg, const u8 *src, const size_t count) { int ret; - u8 buf[count + 1]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg; + if (1 + count > sizeof(buf)) { + printk(KERN_WARNING + "mt312: write: len=%zd is too big!\n", count); + return -EINVAL; + } + if (debug) { int i; dprintk("W(%d):", reg & 0x7f); diff --git a/drivers/media/dvb-frontends/nxt200x.c b/drivers/media/dvb-frontends/nxt200x.c index 8e288940a61f..fbca9856313a 100644 --- a/drivers/media/dvb-frontends/nxt200x.c +++ b/drivers/media/dvb-frontends/nxt200x.c @@ -39,6 +39,9 @@ */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + #define NXT2002_DEFAULT_FIRMWARE "dvb-fe-nxt2002.fw" #define NXT2004_DEFAULT_FIRMWARE "dvb-fe-nxt2004.fw" #define CRC_CCIT_MASK 0x1021 @@ -95,10 +98,16 @@ static int i2c_readbytes(struct nxt200x_state *state, u8 addr, u8 *buf, u8 len) static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg, const u8 *buf, u8 len) { - u8 buf2 [len+1]; + u8 buf2[MAX_XFER_SIZE]; int err; struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf2, .len = len + 1 }; + if (1 + len > sizeof(buf2)) { + pr_warn("%s: i2c wr reg=%04x: len=%d is too big!\n", + __func__, reg, len); + return -EINVAL; + } + buf2[0] = reg; memcpy(&buf2[1], buf, len); diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c index 362d26d11e82..7efb796c472c 100644 --- a/drivers/media/dvb-frontends/rtl2830.c +++ b/drivers/media/dvb-frontends/rtl2830.c @@ -27,20 +27,30 @@ #include "rtl2830_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* write multiple hardware registers */ static int rtl2830_wr(struct rtl2830_priv *priv, u8 reg, const u8 *val, int len) { int ret; - u8 buf[1+len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg.i2c_addr, .flags = 0, - .len = 1+len, + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index facb84841518..ff73da9365e3 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -22,6 +22,9 @@ #include "dvb_math.h" #include <linux/bitops.h> +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + int rtl2832_debug; module_param_named(debug, rtl2832_debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); @@ -162,16 +165,23 @@ static const struct rtl2832_reg_entry registers[] = { static int rtl2832_wr(struct rtl2832_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[1+len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg.i2c_addr, .flags = 0, - .len = 1+len, + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -489,6 +499,7 @@ static int rtl2832_init(struct dvb_frontend *fe) init = rtl2832_tuner_init_e4000; break; case RTL2832_TUNER_R820T: + case RTL2832_TUNER_R828D: len = ARRAY_SIZE(rtl2832_tuner_init_r820t); init = rtl2832_tuner_init_r820t; break; diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h index 91b2dcf5a6ea..2cfbb6a97061 100644 --- a/drivers/media/dvb-frontends/rtl2832.h +++ b/drivers/media/dvb-frontends/rtl2832.h @@ -53,6 +53,7 @@ struct rtl2832_config { #define RTL2832_TUNER_E4000 0x27 #define RTL2832_TUNER_FC0013 0x29 #define RTL2832_TUNER_R820T 0x2a +#define RTL2832_TUNER_R828D 0x2b u8 tuner; }; diff --git a/drivers/media/dvb-frontends/s5h1420.c b/drivers/media/dvb-frontends/s5h1420.c index e2fec9ebf947..93eeaf7118fd 100644 --- a/drivers/media/dvb-frontends/s5h1420.c +++ b/drivers/media/dvb-frontends/s5h1420.c @@ -836,9 +836,16 @@ static u32 s5h1420_tuner_i2c_func(struct i2c_adapter *adapter) static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num) { struct s5h1420_state *state = i2c_get_adapdata(i2c_adap); - struct i2c_msg m[1 + num]; + struct i2c_msg m[3]; u8 tx_open[2] = { CON_1, state->CON_1_val | 1 }; /* repeater stops once there was a stop condition */ + if (1 + num > ARRAY_SIZE(m)) { + printk(KERN_WARNING + "%s: i2c xfer: num=%d is too big!\n", + KBUILD_MODNAME, num); + return -EOPNOTSUPP; + } + memset(m, 0, sizeof(struct i2c_msg) * (1 + num)); m[0].addr = state->config->demod_address; @@ -847,7 +854,7 @@ static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c memcpy(&m[1], msg, sizeof(struct i2c_msg) * num); - return i2c_transfer(state->i2c, m, 1+num) == 1 + num ? num : -EIO; + return i2c_transfer(state->i2c, m, 1 + num) == 1 + num ? num : -EIO; } static struct i2c_algorithm s5h1420_tuner_i2c_algo = { diff --git a/drivers/media/dvb-frontends/stb0899_drv.c b/drivers/media/dvb-frontends/stb0899_drv.c index 3dd5714eadba..07cd5ea7a038 100644 --- a/drivers/media/dvb-frontends/stb0899_drv.c +++ b/drivers/media/dvb-frontends/stb0899_drv.c @@ -32,6 +32,9 @@ #include "stb0899_priv.h" #include "stb0899_reg.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static unsigned int verbose = 0;//1; module_param(verbose, int, 0644); @@ -499,7 +502,7 @@ err: int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count) { int ret; - u8 buf[2 + count]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg i2c_msg = { .addr = state->config->demod_address, .flags = 0, @@ -507,6 +510,13 @@ int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, .len = 2 + count }; + if (2 + count > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, count); + return -EINVAL; + } + buf[0] = reg >> 8; buf[1] = reg & 0xff; memcpy(&buf[2], data, count); diff --git a/drivers/media/dvb-frontends/stb6100.c b/drivers/media/dvb-frontends/stb6100.c index 45f9523f968f..cea175d19890 100644 --- a/drivers/media/dvb-frontends/stb6100.c +++ b/drivers/media/dvb-frontends/stb6100.c @@ -31,6 +31,8 @@ static unsigned int verbose; module_param(verbose, int, 0644); +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 #define FE_ERROR 0 #define FE_NOTICE 1 @@ -183,7 +185,7 @@ static int stb6100_read_reg(struct stb6100_state *state, u8 reg) static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int start, int len) { int rc; - u8 cmdbuf[len + 1]; + u8 cmdbuf[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = state->config->tuner_address, .flags = 0, @@ -191,6 +193,13 @@ static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int st .len = len + 1 }; + if (1 + len > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr: len=%d is too big!\n", + KBUILD_MODNAME, len); + return -EINVAL; + } + if (unlikely(start < 1 || start + len > STB6100_NUMREGS)) { dprintk(verbose, FE_ERROR, 1, "Invalid register range %d:%d", start, len); diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c index 7b6dba3ce55e..458772739423 100644 --- a/drivers/media/dvb-frontends/stv0367.c +++ b/drivers/media/dvb-frontends/stv0367.c @@ -33,6 +33,9 @@ #include "stv0367_regs.h" #include "stv0367_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static int stvdebug; module_param_named(debug, stvdebug, int, 0644); @@ -767,7 +770,7 @@ static struct st_register def0367cab[STV0367CAB_NBREGS] = { static int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len) { - u8 buf[len + 2]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, @@ -776,6 +779,14 @@ int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len) }; int ret; + if (2 + len > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + + buf[0] = MSB(reg); buf[1] = LSB(reg); memcpy(buf + 2, data, len); diff --git a/drivers/media/dvb-frontends/stv090x.c b/drivers/media/dvb-frontends/stv090x.c index 56d470ad5a82..23e872f84742 100644 --- a/drivers/media/dvb-frontends/stv090x.c +++ b/drivers/media/dvb-frontends/stv090x.c @@ -35,6 +35,9 @@ #include "stv090x.h" #include "stv090x_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static unsigned int verbose; module_param(verbose, int, 0644); @@ -722,9 +725,16 @@ static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 { const struct stv090x_config *config = state->config; int ret; - u8 buf[2 + count]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count }; + if (2 + count > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, count); + return -EINVAL; + } + buf[0] = reg >> 8; buf[1] = reg & 0xff; memcpy(&buf[2], data, count); diff --git a/drivers/media/dvb-frontends/stv6110.c b/drivers/media/dvb-frontends/stv6110.c index 20b5fa92c53e..b1425830a24e 100644 --- a/drivers/media/dvb-frontends/stv6110.c +++ b/drivers/media/dvb-frontends/stv6110.c @@ -30,6 +30,9 @@ #include "stv6110.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static int debug; struct stv6110_priv { @@ -68,7 +71,7 @@ static int stv6110_write_regs(struct dvb_frontend *fe, u8 buf[], { struct stv6110_priv *priv = fe->tuner_priv; int rc; - u8 cmdbuf[len + 1]; + u8 cmdbuf[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = priv->i2c_address, .flags = 0, @@ -78,6 +81,13 @@ static int stv6110_write_regs(struct dvb_frontend *fe, u8 buf[], dprintk("%s\n", __func__); + if (1 + len > sizeof(cmdbuf)) { + printk(KERN_WARNING + "%s: i2c wr: len=%d is too big!\n", + KBUILD_MODNAME, len); + return -EINVAL; + } + if (start + len > 8) return -EINVAL; diff --git a/drivers/media/dvb-frontends/stv6110x.c b/drivers/media/dvb-frontends/stv6110x.c index f36cab12bdc7..e66154e5c1d7 100644 --- a/drivers/media/dvb-frontends/stv6110x.c +++ b/drivers/media/dvb-frontends/stv6110x.c @@ -32,6 +32,9 @@ #include "stv6110x.h" #include "stv6110x_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static unsigned int verbose; module_param(verbose, int, 0644); MODULE_PARM_DESC(verbose, "Set Verbosity level"); @@ -61,7 +64,8 @@ static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 da { int ret; const struct stv6110x_config *config = stv6110x->config; - u8 buf[len + 1]; + u8 buf[MAX_XFER_SIZE]; + struct i2c_msg msg = { .addr = config->addr, .flags = 0, @@ -69,6 +73,13 @@ static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 da .len = len + 1 }; + if (1 + len > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr: len=%d is too big!\n", + KBUILD_MODNAME, len); + return -EINVAL; + } + if (start + len > 8) return -EINVAL; diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c index e79749cfec81..8ad3a57cf640 100644 --- a/drivers/media/dvb-frontends/tda10071.c +++ b/drivers/media/dvb-frontends/tda10071.c @@ -20,6 +20,9 @@ #include "tda10071_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static struct dvb_frontend_ops tda10071_ops; /* write multiple registers */ @@ -27,16 +30,23 @@ static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len+1]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg.demod_i2c_addr, .flags = 0, - .len = sizeof(buf), + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -56,7 +66,7 @@ static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[2] = { { .addr = priv->cfg.demod_i2c_addr, @@ -66,11 +76,18 @@ static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val, }, { .addr = priv->cfg.demod_i2c_addr, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = len, .buf = buf, } }; + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, buf, len); diff --git a/drivers/media/dvb-frontends/tda18271c2dd.c b/drivers/media/dvb-frontends/tda18271c2dd.c index d281f77d5c28..2c54586ac07f 100644 --- a/drivers/media/dvb-frontends/tda18271c2dd.c +++ b/drivers/media/dvb-frontends/tda18271c2dd.c @@ -34,6 +34,9 @@ #include "dvb_frontend.h" #include "tda18271c2dd.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + struct SStandardParam { s32 m_IFFrequency; u32 m_BandWidth; @@ -139,11 +142,18 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len) static int WriteRegs(struct tda_state *state, u8 SubAddr, u8 *Regs, u16 nRegs) { - u8 data[nRegs+1]; + u8 data[MAX_XFER_SIZE]; + + if (1 + nRegs > sizeof(data)) { + printk(KERN_WARNING + "%s: i2c wr: len=%d is too big!\n", + KBUILD_MODNAME, nRegs); + return -EINVAL; + } data[0] = SubAddr; memcpy(data + 1, Regs, nRegs); - return i2c_write(state->i2c, state->adr, data, nRegs+1); + return i2c_write(state->i2c, state->adr, data, nRegs + 1); } static int WriteReg(struct tda_state *state, u8 SubAddr, u8 Reg) diff --git a/drivers/media/dvb-frontends/tda8083.c b/drivers/media/dvb-frontends/tda8083.c index 9d08350fe4b0..69e62f42e2e1 100644 --- a/drivers/media/dvb-frontends/tda8083.c +++ b/drivers/media/dvb-frontends/tda8083.c @@ -189,7 +189,7 @@ static int tda8083_set_tone (struct tda8083_state* state, fe_sec_tone_mode_t ton return tda8083_writereg (state, 0x29, 0x80); default: return -EINVAL; - }; + } } static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t voltage) @@ -201,7 +201,7 @@ static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t vo return tda8083_writereg (state, 0x20, 0x11); default: return -EINVAL; - }; + } } static int tda8083_send_diseqc_burst (struct tda8083_state* state, fe_sec_mini_cmd_t burst) diff --git a/drivers/media/dvb-frontends/ts2020.c b/drivers/media/dvb-frontends/ts2020.c index ad7ad857ab2a..9aba044dabed 100644 --- a/drivers/media/dvb-frontends/ts2020.c +++ b/drivers/media/dvb-frontends/ts2020.c @@ -31,6 +31,7 @@ struct ts2020_priv { struct i2c_adapter *i2c; u8 clk_out_div; u32 frequency; + u32 frequency_div; }; static int ts2020_release(struct dvb_frontend *fe) @@ -193,7 +194,7 @@ static int ts2020_set_params(struct dvb_frontend *fe) u8 lo = 0x01, div4 = 0x0; /* Calculate frequency divider */ - if (frequency < 1060000) { + if (frequency < priv->frequency_div) { lo |= 0x10; div4 = 0x1; ndiv = (frequency * 14 * 4) / TS2020_XTAL_FREQ; @@ -340,8 +341,12 @@ struct dvb_frontend *ts2020_attach(struct dvb_frontend *fe, priv->i2c_address = config->tuner_address; priv->i2c = i2c; priv->clk_out_div = config->clk_out_div; + priv->frequency_div = config->frequency_div; fe->tuner_priv = priv; + if (!priv->frequency_div) + priv->frequency_div = 1060000; + /* Wake Up the tuner */ if ((0x03 & ts2020_readreg(fe, 0x00)) == 0x00) { ts2020_writereg(fe, 0x00, 0x01); diff --git a/drivers/media/dvb-frontends/ts2020.h b/drivers/media/dvb-frontends/ts2020.h index 5bcb9a71ca80..b2fe6bb3a38b 100644 --- a/drivers/media/dvb-frontends/ts2020.h +++ b/drivers/media/dvb-frontends/ts2020.h @@ -28,6 +28,7 @@ struct ts2020_config { u8 tuner_address; u8 clk_out_div; + u32 frequency_div; }; #if IS_ENABLED(CONFIG_DVB_TS2020) diff --git a/drivers/media/dvb-frontends/zl10039.c b/drivers/media/dvb-frontends/zl10039.c index eff9c5fde50a..91b6b2e9b792 100644 --- a/drivers/media/dvb-frontends/zl10039.c +++ b/drivers/media/dvb-frontends/zl10039.c @@ -30,6 +30,9 @@ static int debug; +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + #define dprintk(args...) \ do { \ if (debug) \ @@ -98,7 +101,7 @@ static int zl10039_write(struct zl10039_state *state, const enum zl10039_reg_addr reg, const u8 *src, const size_t count) { - u8 buf[count + 1]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = state->i2c_addr, .flags = 0, @@ -106,6 +109,13 @@ static int zl10039_write(struct zl10039_state *state, .len = count + 1, }; + if (1 + count > sizeof(buf)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%zd is too big!\n", + KBUILD_MODNAME, reg, count); + return -EINVAL; + } + dprintk("%s\n", __func__); /* Write register address and data in one go */ buf[0] = reg; diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index cbc9ee9bec2b..842654d33317 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -621,6 +621,15 @@ config VIDEO_AS3645A This is a driver for the AS3645A and LM3555 flash controllers. It has build in control for flash, torch and indicator LEDs. +config VIDEO_LM3560 + tristate "LM3560 dual flash driver support" + depends on I2C && VIDEO_V4L2 && MEDIA_CONTROLLER + depends on MEDIA_CAMERA_SUPPORT + select REGMAP_I2C + ---help--- + This is a driver for the lm3560 dual flash controllers. It controls + flash, torch LEDs. + comment "Video improvement chips" config VIDEO_UPD64031A diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 9f462df77b4a..e03f1776f4f4 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -70,6 +70,7 @@ obj-$(CONFIG_VIDEO_S5K4ECGX) += s5k4ecgx.o obj-$(CONFIG_VIDEO_S5C73M3) += s5c73m3/ obj-$(CONFIG_VIDEO_ADP1653) += adp1653.o obj-$(CONFIG_VIDEO_AS3645A) += as3645a.o +obj-$(CONFIG_VIDEO_LM3560) += lm3560.o obj-$(CONFIG_VIDEO_SMIAPP_PLL) += smiapp-pll.o obj-$(CONFIG_VIDEO_AK881X) += ak881x.o obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c index aeb56c53e39f..d4e15a617c3b 100644 --- a/drivers/media/i2c/adv7343.c +++ b/drivers/media/i2c/adv7343.c @@ -25,6 +25,7 @@ #include <linux/module.h> #include <linux/videodev2.h> #include <linux/uaccess.h> +#include <linux/of.h> #include <media/adv7343.h> #include <media/v4l2-async.h> diff --git a/drivers/media/i2c/lm3560.c b/drivers/media/i2c/lm3560.c new file mode 100644 index 000000000000..3317a9ae3961 --- /dev/null +++ b/drivers/media/i2c/lm3560.c @@ -0,0 +1,488 @@ +/* + * drivers/media/i2c/lm3560.c + * General device driver for TI lm3560, FLASH LED Driver + * + * Copyright (C) 2013 Texas Instruments + * + * Contact: Daniel Jeong <gshark.jeong@gmail.com> + * Ldd-Mlp <ldd-mlp@list.ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/mutex.h> +#include <linux/regmap.h> +#include <linux/videodev2.h> +#include <media/lm3560.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> + +/* registers definitions */ +#define REG_ENABLE 0x10 +#define REG_TORCH_BR 0xa0 +#define REG_FLASH_BR 0xb0 +#define REG_FLASH_TOUT 0xc0 +#define REG_FLAG 0xd0 +#define REG_CONFIG1 0xe0 + +/* Fault Mask */ +#define FAULT_TIMEOUT (1<<0) +#define FAULT_OVERTEMP (1<<1) +#define FAULT_SHORT_CIRCUIT (1<<2) + +enum led_enable { + MODE_SHDN = 0x0, + MODE_TORCH = 0x2, + MODE_FLASH = 0x3, +}; + +/* struct lm3560_flash + * + * @pdata: platform data + * @regmap: reg. map for i2c + * @lock: muxtex for serial access. + * @led_mode: V4L2 LED mode + * @ctrls_led: V4L2 contols + * @subdev_led: V4L2 subdev + */ +struct lm3560_flash { + struct device *dev; + struct lm3560_platform_data *pdata; + struct regmap *regmap; + struct mutex lock; + + enum v4l2_flash_led_mode led_mode; + struct v4l2_ctrl_handler ctrls_led[LM3560_LED_MAX]; + struct v4l2_subdev subdev_led[LM3560_LED_MAX]; +}; + +#define to_lm3560_flash(_ctrl, _no) \ + container_of(_ctrl->handler, struct lm3560_flash, ctrls_led[_no]) + +/* enable mode control */ +static int lm3560_mode_ctrl(struct lm3560_flash *flash) +{ + int rval = -EINVAL; + + switch (flash->led_mode) { + case V4L2_FLASH_LED_MODE_NONE: + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x03, MODE_SHDN); + break; + case V4L2_FLASH_LED_MODE_TORCH: + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x03, MODE_TORCH); + break; + case V4L2_FLASH_LED_MODE_FLASH: + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x03, MODE_FLASH); + break; + } + return rval; +} + +/* led1/2 enable/disable */ +static int lm3560_enable_ctrl(struct lm3560_flash *flash, + enum lm3560_led_id led_no, bool on) +{ + int rval; + + if (led_no == LM3560_LED0) { + if (on == true) + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x08, 0x08); + else + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x08, 0x00); + } else { + if (on == true) + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x10, 0x10); + else + rval = regmap_update_bits(flash->regmap, + REG_ENABLE, 0x10, 0x00); + } + return rval; +} + +/* torch1/2 brightness control */ +static int lm3560_torch_brt_ctrl(struct lm3560_flash *flash, + enum lm3560_led_id led_no, unsigned int brt) +{ + int rval; + u8 br_bits; + + if (brt < LM3560_TORCH_BRT_MIN) + return lm3560_enable_ctrl(flash, led_no, false); + else + rval = lm3560_enable_ctrl(flash, led_no, true); + + br_bits = LM3560_TORCH_BRT_uA_TO_REG(brt); + if (led_no == LM3560_LED0) + rval = regmap_update_bits(flash->regmap, + REG_TORCH_BR, 0x07, br_bits); + else + rval = regmap_update_bits(flash->regmap, + REG_TORCH_BR, 0x38, br_bits << 3); + + return rval; +} + +/* flash1/2 brightness control */ +static int lm3560_flash_brt_ctrl(struct lm3560_flash *flash, + enum lm3560_led_id led_no, unsigned int brt) +{ + int rval; + u8 br_bits; + + if (brt < LM3560_FLASH_BRT_MIN) + return lm3560_enable_ctrl(flash, led_no, false); + else + rval = lm3560_enable_ctrl(flash, led_no, true); + + br_bits = LM3560_FLASH_BRT_uA_TO_REG(brt); + if (led_no == LM3560_LED0) + rval = regmap_update_bits(flash->regmap, + REG_FLASH_BR, 0x0f, br_bits); + else + rval = regmap_update_bits(flash->regmap, + REG_FLASH_BR, 0xf0, br_bits << 4); + + return rval; +} + +/* V4L2 controls */ +static int lm3560_get_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no) +{ + struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no); + + mutex_lock(&flash->lock); + + if (ctrl->id == V4L2_CID_FLASH_FAULT) { + int rval; + s32 fault = 0; + unsigned int reg_val; + rval = regmap_read(flash->regmap, REG_FLAG, ®_val); + if (rval < 0) + return rval; + if (rval & FAULT_SHORT_CIRCUIT) + fault |= V4L2_FLASH_FAULT_SHORT_CIRCUIT; + if (rval & FAULT_OVERTEMP) + fault |= V4L2_FLASH_FAULT_OVER_TEMPERATURE; + if (rval & FAULT_TIMEOUT) + fault |= V4L2_FLASH_FAULT_TIMEOUT; + ctrl->cur.val = fault; + return 0; + } + + mutex_unlock(&flash->lock); + return -EINVAL; +} + +static int lm3560_set_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no) +{ + struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no); + u8 tout_bits; + int rval = -EINVAL; + + mutex_lock(&flash->lock); + + switch (ctrl->id) { + case V4L2_CID_FLASH_LED_MODE: + flash->led_mode = ctrl->val; + if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH) + rval = lm3560_mode_ctrl(flash); + break; + + case V4L2_CID_FLASH_STROBE_SOURCE: + rval = regmap_update_bits(flash->regmap, + REG_CONFIG1, 0x04, (ctrl->val) << 2); + if (rval < 0) + goto err_out; + break; + + case V4L2_CID_FLASH_STROBE: + if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH) + return -EBUSY; + flash->led_mode = V4L2_FLASH_LED_MODE_FLASH; + rval = lm3560_mode_ctrl(flash); + break; + + case V4L2_CID_FLASH_STROBE_STOP: + if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH) + return -EBUSY; + flash->led_mode = V4L2_FLASH_LED_MODE_NONE; + rval = lm3560_mode_ctrl(flash); + break; + + case V4L2_CID_FLASH_TIMEOUT: + tout_bits = LM3560_FLASH_TOUT_ms_TO_REG(ctrl->val); + rval = regmap_update_bits(flash->regmap, + REG_FLASH_TOUT, 0x1f, tout_bits); + break; + + case V4L2_CID_FLASH_INTENSITY: + rval = lm3560_flash_brt_ctrl(flash, led_no, ctrl->val); + break; + + case V4L2_CID_FLASH_TORCH_INTENSITY: + rval = lm3560_torch_brt_ctrl(flash, led_no, ctrl->val); + break; + } + + mutex_unlock(&flash->lock); +err_out: + return rval; +} + +static int lm3560_led1_get_ctrl(struct v4l2_ctrl *ctrl) +{ + return lm3560_get_ctrl(ctrl, LM3560_LED1); +} + +static int lm3560_led1_set_ctrl(struct v4l2_ctrl *ctrl) +{ + return lm3560_set_ctrl(ctrl, LM3560_LED1); +} + +static int lm3560_led0_get_ctrl(struct v4l2_ctrl *ctrl) +{ + return lm3560_get_ctrl(ctrl, LM3560_LED0); +} + +static int lm3560_led0_set_ctrl(struct v4l2_ctrl *ctrl) +{ + return lm3560_set_ctrl(ctrl, LM3560_LED0); +} + +static const struct v4l2_ctrl_ops lm3560_led_ctrl_ops[LM3560_LED_MAX] = { + [LM3560_LED0] = { + .g_volatile_ctrl = lm3560_led0_get_ctrl, + .s_ctrl = lm3560_led0_set_ctrl, + }, + [LM3560_LED1] = { + .g_volatile_ctrl = lm3560_led1_get_ctrl, + .s_ctrl = lm3560_led1_set_ctrl, + } +}; + +static int lm3560_init_controls(struct lm3560_flash *flash, + enum lm3560_led_id led_no) +{ + struct v4l2_ctrl *fault; + u32 max_flash_brt = flash->pdata->max_flash_brt[led_no]; + u32 max_torch_brt = flash->pdata->max_torch_brt[led_no]; + struct v4l2_ctrl_handler *hdl = &flash->ctrls_led[led_no]; + const struct v4l2_ctrl_ops *ops = &lm3560_led_ctrl_ops[led_no]; + + v4l2_ctrl_handler_init(hdl, 8); + /* flash mode */ + v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_LED_MODE, + V4L2_FLASH_LED_MODE_TORCH, ~0x7, + V4L2_FLASH_LED_MODE_NONE); + flash->led_mode = V4L2_FLASH_LED_MODE_NONE; + + /* flash source */ + v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_STROBE_SOURCE, + 0x1, ~0x3, V4L2_FLASH_STROBE_SOURCE_SOFTWARE); + + /* flash strobe */ + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE, 0, 0, 0, 0); + /* flash strobe stop */ + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE_STOP, 0, 0, 0, 0); + + /* flash strobe timeout */ + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TIMEOUT, + LM3560_FLASH_TOUT_MIN, + flash->pdata->max_flash_timeout, + LM3560_FLASH_TOUT_STEP, + flash->pdata->max_flash_timeout); + + /* flash brt */ + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_INTENSITY, + LM3560_FLASH_BRT_MIN, max_flash_brt, + LM3560_FLASH_BRT_STEP, max_flash_brt); + + /* torch brt */ + v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TORCH_INTENSITY, + LM3560_TORCH_BRT_MIN, max_torch_brt, + LM3560_TORCH_BRT_STEP, max_torch_brt); + + /* fault */ + fault = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_FAULT, 0, + V4L2_FLASH_FAULT_OVER_VOLTAGE + | V4L2_FLASH_FAULT_OVER_TEMPERATURE + | V4L2_FLASH_FAULT_SHORT_CIRCUIT + | V4L2_FLASH_FAULT_TIMEOUT, 0, 0); + if (fault != NULL) + fault->flags |= V4L2_CTRL_FLAG_VOLATILE; + + if (hdl->error) + return hdl->error; + + flash->subdev_led[led_no].ctrl_handler = hdl; + return 0; +} + +/* initialize device */ +static const struct v4l2_subdev_ops lm3560_ops = { + .core = NULL, +}; + +static const struct regmap_config lm3560_regmap = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xFF, +}; + +static int lm3560_subdev_init(struct lm3560_flash *flash, + enum lm3560_led_id led_no, char *led_name) +{ + struct i2c_client *client = to_i2c_client(flash->dev); + int rval; + + v4l2_i2c_subdev_init(&flash->subdev_led[led_no], client, &lm3560_ops); + flash->subdev_led[led_no].flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + strcpy(flash->subdev_led[led_no].name, led_name); + rval = lm3560_init_controls(flash, led_no); + if (rval) + goto err_out; + rval = media_entity_init(&flash->subdev_led[led_no].entity, 0, NULL, 0); + if (rval < 0) + goto err_out; + flash->subdev_led[led_no].entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH; + + return rval; + +err_out: + v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]); + return rval; +} + +static int lm3560_init_device(struct lm3560_flash *flash) +{ + int rval; + unsigned int reg_val; + + /* set peak current */ + rval = regmap_update_bits(flash->regmap, + REG_FLASH_TOUT, 0x60, flash->pdata->peak); + if (rval < 0) + return rval; + /* output disable */ + flash->led_mode = V4L2_FLASH_LED_MODE_NONE; + rval = lm3560_mode_ctrl(flash); + if (rval < 0) + return rval; + /* Reset faults */ + rval = regmap_read(flash->regmap, REG_FLAG, ®_val); + return rval; +} + +static int lm3560_probe(struct i2c_client *client, + const struct i2c_device_id *devid) +{ + struct lm3560_flash *flash; + struct lm3560_platform_data *pdata = dev_get_platdata(&client->dev); + int rval; + + flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL); + if (flash == NULL) + return -ENOMEM; + + flash->regmap = devm_regmap_init_i2c(client, &lm3560_regmap); + if (IS_ERR(flash->regmap)) { + rval = PTR_ERR(flash->regmap); + return rval; + } + + /* if there is no platform data, use chip default value */ + if (pdata == NULL) { + pdata = + kzalloc(sizeof(struct lm3560_platform_data), GFP_KERNEL); + if (pdata == NULL) + return -ENODEV; + pdata->peak = LM3560_PEAK_3600mA; + pdata->max_flash_timeout = LM3560_FLASH_TOUT_MAX; + /* led 1 */ + pdata->max_flash_brt[LM3560_LED0] = LM3560_FLASH_BRT_MAX; + pdata->max_torch_brt[LM3560_LED0] = LM3560_TORCH_BRT_MAX; + /* led 2 */ + pdata->max_flash_brt[LM3560_LED1] = LM3560_FLASH_BRT_MAX; + pdata->max_torch_brt[LM3560_LED1] = LM3560_TORCH_BRT_MAX; + } + flash->pdata = pdata; + flash->dev = &client->dev; + mutex_init(&flash->lock); + + rval = lm3560_subdev_init(flash, LM3560_LED0, "lm3560-led0"); + if (rval < 0) + return rval; + + rval = lm3560_subdev_init(flash, LM3560_LED1, "lm3560-led1"); + if (rval < 0) + return rval; + + rval = lm3560_init_device(flash); + if (rval < 0) + return rval; + + return 0; +} + +static int lm3560_remove(struct i2c_client *client) +{ + struct v4l2_subdev *subdev = i2c_get_clientdata(client); + struct lm3560_flash *flash = container_of(subdev, struct lm3560_flash, + subdev_led[LM3560_LED_MAX]); + unsigned int i; + + for (i = LM3560_LED0; i < LM3560_LED_MAX; i++) { + v4l2_device_unregister_subdev(&flash->subdev_led[i]); + v4l2_ctrl_handler_free(&flash->ctrls_led[i]); + media_entity_cleanup(&flash->subdev_led[i].entity); + } + + return 0; +} + +static const struct i2c_device_id lm3560_id_table[] = { + {LM3560_NAME, 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, lm3560_id_table); + +static struct i2c_driver lm3560_i2c_driver = { + .driver = { + .name = LM3560_NAME, + .pm = NULL, + }, + .probe = lm3560_probe, + .remove = lm3560_remove, + .id_table = lm3560_id_table, +}; + +module_i2c_driver(lm3560_i2c_driver); + +MODULE_AUTHOR("Daniel Jeong <gshark.jeong@gmail.com>"); +MODULE_AUTHOR("Ldd Mlp <ldd-mlp@list.ti.com>"); +MODULE_DESCRIPTION("Texas Instruments LM3560 LED flash driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c index 31f40b342049..6fec9384d86e 100644 --- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c +++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c @@ -1581,7 +1581,7 @@ static int s5c73m3_probe(struct i2c_client *client, oif_sd = &state->oif_sd; v4l2_subdev_init(sd, &s5c73m3_subdev_ops); - sd->owner = client->driver->driver.owner; + sd->owner = client->dev.driver->owner; v4l2_set_subdevdata(sd, state); strlcpy(sd->name, "S5C73M3", sizeof(sd->name)); diff --git a/drivers/media/i2c/soc_camera/imx074.c b/drivers/media/i2c/soc_camera/imx074.c index 1d384a371b41..5b915936c3f3 100644 --- a/drivers/media/i2c/soc_camera/imx074.c +++ b/drivers/media/i2c/soc_camera/imx074.c @@ -451,7 +451,9 @@ static int imx074_probe(struct i2c_client *client, if (ret < 0) goto eprobe; - return v4l2_async_register_subdev(&priv->subdev); + ret = v4l2_async_register_subdev(&priv->subdev); + if (!ret) + return 0; epwrinit: eprobe: diff --git a/drivers/media/i2c/soc_camera/ov9640.c b/drivers/media/i2c/soc_camera/ov9640.c index e968c3fdbd9e..bc74224503e7 100644 --- a/drivers/media/i2c/soc_camera/ov9640.c +++ b/drivers/media/i2c/soc_camera/ov9640.c @@ -371,7 +371,7 @@ static void ov9640_alter_regs(enum v4l2_mbus_pixelcode code, alt->com13 = OV9640_COM13_RGB_AVG; alt->com15 = OV9640_COM15_RGB_565; break; - }; + } } /* Setup registers according to resolution and color encoding */ diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c index d9f65d7e3e58..04139eec8c4e 100644 --- a/drivers/media/i2c/ths8200.c +++ b/drivers/media/i2c/ths8200.c @@ -19,6 +19,7 @@ #include <linux/i2c.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/v4l2-dv-timings.h> #include <media/v4l2-dv-timings.h> diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c index 91f3dd4cda1b..83d85df4853a 100644 --- a/drivers/media/i2c/tvp514x.c +++ b/drivers/media/i2c/tvp514x.c @@ -35,6 +35,7 @@ #include <linux/videodev2.h> #include <linux/module.h> #include <linux/v4l2-mediabus.h> +#include <linux/of.h> #include <media/v4l2-async.h> #include <media/v4l2-device.h> diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c index 24a08fa7e328..912e1cccdd1c 100644 --- a/drivers/media/i2c/tvp7002.c +++ b/drivers/media/i2c/tvp7002.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <linux/videodev2.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/v4l2-dv-timings.h> #include <media/tvp7002.h> #include <media/v4l2-async.h> diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c index 447afbd904a4..8b5e0b3a92a0 100644 --- a/drivers/media/pci/b2c2/flexcop-pci.c +++ b/drivers/media/pci/b2c2/flexcop-pci.c @@ -319,7 +319,6 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci) err_pci_iounmap: pci_iounmap(fc_pci->pdev, fc_pci->io_mem); - pci_set_drvdata(fc_pci->pdev, NULL); err_pci_release_regions: pci_release_regions(fc_pci->pdev); err_pci_disable_device: @@ -332,7 +331,6 @@ static void flexcop_pci_exit(struct flexcop_pci *fc_pci) if (fc_pci->init_state & FC_PCI_INIT) { free_irq(fc_pci->pdev->irq, fc_pci); pci_iounmap(fc_pci->pdev, fc_pci->io_mem); - pci_set_drvdata(fc_pci->pdev, NULL); pci_release_regions(fc_pci->pdev); pci_disable_device(fc_pci->pdev); } diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c index 66eb0baab0e9..d0c281f41a0a 100644 --- a/drivers/media/pci/bt8xx/bt878.c +++ b/drivers/media/pci/bt8xx/bt878.c @@ -488,8 +488,7 @@ static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) btwrite(0, BT848_INT_MASK); result = request_irq(bt->irq, bt878_irq, - IRQF_SHARED | IRQF_DISABLED, "bt878", - (void *) bt); + IRQF_SHARED, "bt878", (void *) bt); if (result == -EINVAL) { printk(KERN_ERR "bt878(%d): Bad irq number or handler\n", bt878_num); @@ -563,7 +562,6 @@ static void bt878_remove(struct pci_dev *pci_dev) bt->shutdown = 1; bt878_mem_free(bt); - pci_set_drvdata(pci_dev, NULL); pci_disable_device(pci_dev); return; } diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index c6532de0eac7..a3b1ee9c00d7 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -4086,7 +4086,7 @@ static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id) /* disable irqs, register irq handler */ btwrite(0, BT848_INT_MASK); result = request_irq(btv->c.pci->irq, bttv_irq, - IRQF_SHARED | IRQF_DISABLED, btv->c.v4l2_dev.name, (void *)btv); + IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv); if (result < 0) { pr_err("%d: can't get IRQ %d\n", bttv_num, btv->c.pci->irq); diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c index 004d8ace5019..c1f8cc6f14b2 100644 --- a/drivers/media/pci/cx18/cx18-driver.c +++ b/drivers/media/pci/cx18/cx18-driver.c @@ -324,23 +324,24 @@ static void cx18_eeprom_dump(struct cx18 *cx, unsigned char *eedata, int len) /* Hauppauge card? get values from tveeprom */ void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv) { - struct i2c_client c; + struct i2c_client *c; u8 eedata[256]; - memset(&c, 0, sizeof(c)); - strlcpy(c.name, "cx18 tveeprom tmp", sizeof(c.name)); - c.adapter = &cx->i2c_adap[0]; - c.addr = 0xA0 >> 1; + c = kzalloc(sizeof(*c), GFP_KERNEL); + + strlcpy(c->name, "cx18 tveeprom tmp", sizeof(c->name)); + c->adapter = &cx->i2c_adap[0]; + c->addr = 0xa0 >> 1; memset(tv, 0, sizeof(*tv)); - if (tveeprom_read(&c, eedata, sizeof(eedata))) - return; + if (tveeprom_read(c, eedata, sizeof(eedata))) + goto ret; switch (cx->card->type) { case CX18_CARD_HVR_1600_ESMT: case CX18_CARD_HVR_1600_SAMSUNG: case CX18_CARD_HVR_1600_S5H1411: - tveeprom_hauppauge_analog(&c, tv, eedata); + tveeprom_hauppauge_analog(c, tv, eedata); break; case CX18_CARD_YUAN_MPC718: case CX18_CARD_GOTVIEW_PCI_DVD3: @@ -354,6 +355,9 @@ void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv) cx18_eeprom_dump(cx, eedata, sizeof(eedata)); break; } + +ret: + kfree(c); } static void cx18_process_eeprom(struct cx18 *cx) @@ -1031,8 +1035,7 @@ static int cx18_probe(struct pci_dev *pci_dev, /* Register IRQ */ retval = request_irq(cx->pci_dev->irq, cx18_irq_handler, - IRQF_SHARED | IRQF_DISABLED, - cx->v4l2_dev.name, (void *)cx); + IRQF_SHARED, cx->v4l2_dev.name, (void *)cx); if (retval) { CX18_ERR("Failed to register irq %d\n", retval); goto free_i2c; diff --git a/drivers/media/pci/cx23885/Kconfig b/drivers/media/pci/cx23885/Kconfig index 5104c802f72f..d1dcb1d2e087 100644 --- a/drivers/media/pci/cx23885/Kconfig +++ b/drivers/media/pci/cx23885/Kconfig @@ -23,6 +23,7 @@ config VIDEO_CX23885 select DVB_STB6100 if MEDIA_SUBDRV_AUTOSELECT select DVB_STV6110 if MEDIA_SUBDRV_AUTOSELECT select DVB_CX24116 if MEDIA_SUBDRV_AUTOSELECT + select DVB_CX24117 if MEDIA_SUBDRV_AUTOSELECT select DVB_STV0900 if MEDIA_SUBDRV_AUTOSELECT select DVB_DS3000 if MEDIA_SUBDRV_AUTOSELECT select DVB_TS2020 if MEDIA_SUBDRV_AUTOSELECT diff --git a/drivers/media/pci/cx23885/cimax2.c b/drivers/media/pci/cx23885/cimax2.c index 7344849183a7..16fa7ea4d4aa 100644 --- a/drivers/media/pci/cx23885/cimax2.c +++ b/drivers/media/pci/cx23885/cimax2.c @@ -26,6 +26,10 @@ #include "cx23885.h" #include "cimax2.h" #include "dvb_ca_en50221.h" + +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /**** Bit definitions for MC417_RWD and MC417_OEN registers *** bits 31-16 +-----------+ @@ -125,7 +129,7 @@ static int netup_write_i2c(struct i2c_adapter *i2c_adap, u8 addr, u8 reg, u8 *buf, int len) { int ret; - u8 buffer[len + 1]; + u8 buffer[MAX_XFER_SIZE]; struct i2c_msg msg = { .addr = addr, @@ -134,6 +138,13 @@ static int netup_write_i2c(struct i2c_adapter *i2c_adap, u8 addr, u8 reg, .len = len + 1 }; + if (1 + len > sizeof(buffer)) { + printk(KERN_WARNING + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buffer[0] = reg; memcpy(&buffer[1], buf, len); diff --git a/drivers/media/pci/cx23885/cx23885-cards.c b/drivers/media/pci/cx23885/cx23885-cards.c index 6a71a965e757..79f20c8c842e 100644 --- a/drivers/media/pci/cx23885/cx23885-cards.c +++ b/drivers/media/pci/cx23885/cx23885-cards.c @@ -223,6 +223,39 @@ struct cx23885_board cx23885_boards[] = { .name = "Leadtek Winfast PxDVR3200 H", .portc = CX23885_MPEG_DVB, }, + [CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200] = { + .name = "Leadtek Winfast PxPVR2200", + .porta = CX23885_ANALOG_VIDEO, + .tuner_type = TUNER_XC2028, + .tuner_addr = 0x61, + .tuner_bus = 1, + .input = {{ + .type = CX23885_VMUX_TELEVISION, + .vmux = CX25840_VIN2_CH1 | + CX25840_VIN5_CH2, + .amux = CX25840_AUDIO8, + .gpio0 = 0x704040, + }, { + .type = CX23885_VMUX_COMPOSITE1, + .vmux = CX25840_COMPOSITE1, + .amux = CX25840_AUDIO7, + .gpio0 = 0x704040, + }, { + .type = CX23885_VMUX_SVIDEO, + .vmux = CX25840_SVIDEO_LUMA3 | + CX25840_SVIDEO_CHROMA4, + .amux = CX25840_AUDIO7, + .gpio0 = 0x704040, + }, { + .type = CX23885_VMUX_COMPONENT, + .vmux = CX25840_VIN7_CH1 | + CX25840_VIN6_CH2 | + CX25840_VIN8_CH3 | + CX25840_COMPONENT_ON, + .amux = CX25840_AUDIO7, + .gpio0 = 0x704040, + } }, + }, [CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000] = { .name = "Leadtek Winfast PxDVR3200 H XC4000", .porta = CX23885_ANALOG_VIDEO, @@ -259,6 +292,16 @@ struct cx23885_board cx23885_boards[] = { .name = "TurboSight TBS 6920", .portb = CX23885_MPEG_DVB, }, + [CX23885_BOARD_TBS_6980] = { + .name = "TurboSight TBS 6980", + .portb = CX23885_MPEG_DVB, + .portc = CX23885_MPEG_DVB, + }, + [CX23885_BOARD_TBS_6981] = { + .name = "TurboSight TBS 6981", + .portb = CX23885_MPEG_DVB, + .portc = CX23885_MPEG_DVB, + }, [CX23885_BOARD_TEVII_S470] = { .name = "TeVii S470", .portb = CX23885_MPEG_DVB, @@ -688,6 +731,10 @@ struct cx23885_subid cx23885_subids[] = { .card = CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H, }, { .subvendor = 0x107d, + .subdevice = 0x6f21, + .card = CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200, + }, { + .subvendor = 0x107d, .subdevice = 0x6f39, .card = CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000, }, { @@ -699,6 +746,14 @@ struct cx23885_subid cx23885_subids[] = { .subdevice = 0x8888, .card = CX23885_BOARD_TBS_6920, }, { + .subvendor = 0x6980, + .subdevice = 0x8888, + .card = CX23885_BOARD_TBS_6980, + }, { + .subvendor = 0x6981, + .subdevice = 0x8888, + .card = CX23885_BOARD_TBS_6981, + }, { .subvendor = 0xd470, .subdevice = 0x9022, .card = CX23885_BOARD_TEVII_S470, @@ -1023,6 +1078,35 @@ static void hauppauge_eeprom(struct cx23885_dev *dev, u8 *eeprom_data) dev->name, tv.model); } +/* Some TBS cards require initing a chip using a bitbanged SPI attached + to the cx23885 gpio's. If this chip doesn't get init'ed the demod + doesn't respond to any command. */ +static void tbs_card_init(struct cx23885_dev *dev) +{ + int i; + const u8 buf[] = { + 0xe0, 0x06, 0x66, 0x33, 0x65, + 0x01, 0x17, 0x06, 0xde}; + + switch (dev->board) { + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: + cx_set(GP0_IO, 0x00070007); + usleep_range(1000, 10000); + cx_clear(GP0_IO, 2); + usleep_range(1000, 10000); + for (i = 0; i < 9 * 8; i++) { + cx_clear(GP0_IO, 7); + usleep_range(1000, 10000); + cx_set(GP0_IO, + ((buf[i >> 3] >> (7 - (i & 7))) & 1) | 4); + usleep_range(1000, 10000); + } + cx_set(GP0_IO, 7); + break; + } +} + int cx23885_tuner_callback(void *priv, int component, int command, int arg) { struct cx23885_tsport *port = priv; @@ -1043,6 +1127,7 @@ int cx23885_tuner_callback(void *priv, int component, int command, int arg) case CX23885_BOARD_HAUPPAUGE_HVR1500: case CX23885_BOARD_HAUPPAUGE_HVR1500Q: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H: + case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000: case CX23885_BOARD_COMPRO_VIDEOMATE_E650F: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: @@ -1208,6 +1293,7 @@ void cx23885_gpio_setup(struct cx23885_dev *dev) cx_set(GP0_IO, 0x000f000f); break; case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H: + case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000: case CX23885_BOARD_COMPRO_VIDEOMATE_E650F: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: @@ -1225,6 +1311,8 @@ void cx23885_gpio_setup(struct cx23885_dev *dev) cx_set(GP0_IO, 0x00040004); break; case CX23885_BOARD_TBS_6920: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: case CX23885_BOARD_PROF_8000: cx_write(MC417_CTL, 0x00000036); cx_write(MC417_OEN, 0x00001000); @@ -1473,6 +1561,8 @@ int cx23885_ir_init(struct cx23885_dev *dev) case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL: case CX23885_BOARD_TEVII_S470: case CX23885_BOARD_MYGICA_X8507: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: if (!enable_885_ir) break; dev->sd_ir = cx23885_find_hw(dev, CX23885_HW_AV_CORE); @@ -1516,6 +1606,8 @@ void cx23885_ir_fini(struct cx23885_dev *dev) case CX23885_BOARD_TEVII_S470: case CX23885_BOARD_HAUPPAUGE_HVR1250: case CX23885_BOARD_MYGICA_X8507: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: cx23885_irq_remove(dev, PCI_MSK_AV_CORE); /* sd_ir is a duplicate pointer to the AV Core, just clear it */ dev->sd_ir = NULL; @@ -1561,6 +1653,8 @@ void cx23885_ir_pci_int_enable(struct cx23885_dev *dev) case CX23885_BOARD_TEVII_S470: case CX23885_BOARD_HAUPPAUGE_HVR1250: case CX23885_BOARD_MYGICA_X8507: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: if (dev->sd_ir) cx23885_irq_add_enable(dev, PCI_MSK_AV_CORE); break; @@ -1676,6 +1770,16 @@ void cx23885_card_setup(struct cx23885_dev *dev) ts2->ts_clk_en_val = 0x1; /* Enable TS_CLK */ ts2->src_sel_val = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO; break; + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: + ts1->gen_ctrl_val = 0xc; /* Serial bus + punctured clock */ + ts1->ts_clk_en_val = 0x1; /* Enable TS_CLK */ + ts1->src_sel_val = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO; + ts2->gen_ctrl_val = 0xc; /* Serial bus + punctured clock */ + ts2->ts_clk_en_val = 0x1; /* Enable TS_CLK */ + ts2->src_sel_val = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO; + tbs_card_init(dev); + break; case CX23885_BOARD_MYGICA_X8506: case CX23885_BOARD_MAGICPRO_PROHDTVE2: case CX23885_BOARD_MYGICA_X8507: @@ -1704,6 +1808,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1700: case CX23885_BOARD_HAUPPAUGE_HVR1400: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H: + case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000: case CX23885_BOARD_COMPRO_VIDEOMATE_E650F: case CX23885_BOARD_HAUPPAUGE_HVR1270: @@ -1733,6 +1838,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1800lp: case CX23885_BOARD_HAUPPAUGE_HVR1700: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H: + case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200: case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000: case CX23885_BOARD_COMPRO_VIDEOMATE_E650F: case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: @@ -1752,6 +1858,8 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_MYGICA_X8507: case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL: case CX23885_BOARD_AVERMEDIA_HC81R: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_bus[2].i2c_adap, "cx25840", 0x88 >> 1, NULL); diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index 9f63d93239ec..edcd79db1e4e 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -2129,7 +2129,7 @@ static int cx23885_initdev(struct pci_dev *pci_dev, } err = request_irq(pci_dev->irq, cx23885_irq, - IRQF_SHARED | IRQF_DISABLED, dev->name, dev); + IRQF_SHARED, dev->name, dev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name, pci_dev->irq); diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c index 971e4ff1b87f..05492053b473 100644 --- a/drivers/media/pci/cx23885/cx23885-dvb.c +++ b/drivers/media/pci/cx23885/cx23885-dvb.c @@ -51,6 +51,7 @@ #include "stv6110.h" #include "lnbh24.h" #include "cx24116.h" +#include "cx24117.h" #include "cimax2.h" #include "lgs8gxx.h" #include "netup-eeprom.h" @@ -461,6 +462,10 @@ static struct cx24116_config tbs_cx24116_config = { .demod_address = 0x55, }; +static struct cx24117_config tbs_cx24117_config = { + .demod_address = 0x55, +}; + static struct ds3000_config tevii_ds3000_config = { .demod_address = 0x68, }; @@ -1044,6 +1049,25 @@ static int dvb_register(struct cx23885_tsport *port) fe0->dvb.frontend->ops.set_voltage = f300_set_voltage; break; + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: + i2c_bus = &dev->i2c_bus[1]; + + switch (port->nr) { + /* PORT B */ + case 1: + fe0->dvb.frontend = dvb_attach(cx24117_attach, + &tbs_cx24117_config, + &i2c_bus->i2c_adap); + break; + /* PORT C */ + case 2: + fe0->dvb.frontend = dvb_attach(cx24117_attach, + &tbs_cx24117_config, + &i2c_bus->i2c_adap); + break; + } + break; case CX23885_BOARD_TEVII_S470: i2c_bus = &dev->i2c_bus[1]; diff --git a/drivers/media/pci/cx23885/cx23885-input.c b/drivers/media/pci/cx23885/cx23885-input.c index 7875dfbe09ff..8a49e7c9eddd 100644 --- a/drivers/media/pci/cx23885/cx23885-input.c +++ b/drivers/media/pci/cx23885/cx23885-input.c @@ -90,6 +90,8 @@ void cx23885_input_rx_work_handler(struct cx23885_dev *dev, u32 events) case CX23885_BOARD_TEVII_S470: case CX23885_BOARD_HAUPPAUGE_HVR1250: case CX23885_BOARD_MYGICA_X8507: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: /* * The only boards we handle right now. However other boards * using the CX2388x integrated IR controller should be similar @@ -168,6 +170,8 @@ static int cx23885_input_ir_start(struct cx23885_dev *dev) break; case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL: case CX23885_BOARD_TEVII_S470: + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: /* * The IR controller on this board only returns pulse widths. * Any other mode setting will fail to set up the device. @@ -298,6 +302,14 @@ int cx23885_input_init(struct cx23885_dev *dev) /* A guess at the remote */ rc_map = RC_MAP_TOTAL_MEDIA_IN_HAND_02; break; + case CX23885_BOARD_TBS_6980: + case CX23885_BOARD_TBS_6981: + /* Integrated CX23885 IR controller */ + driver_type = RC_DRIVER_IR_RAW; + allowed_protos = RC_BIT_ALL; + /* A guess at the remote */ + rc_map = RC_MAP_TBS_NEC; + break; default: return -ENODEV; } diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c index 161686832b20..7891f34157d1 100644 --- a/drivers/media/pci/cx23885/cx23885-video.c +++ b/drivers/media/pci/cx23885/cx23885-video.c @@ -1865,7 +1865,8 @@ int cx23885_video_register(struct cx23885_dev *dev) v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup); - if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) { + if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) || + (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) { struct xc2028_ctrl ctrl = { .fname = XC2028_DEFAULT_FIRMWARE, .max_len = 64 diff --git a/drivers/media/pci/cx23885/cx23885.h b/drivers/media/pci/cx23885/cx23885.h index 038caf53908b..0fa4048ab872 100644 --- a/drivers/media/pci/cx23885/cx23885.h +++ b/drivers/media/pci/cx23885/cx23885.h @@ -93,6 +93,9 @@ #define CX23885_BOARD_PROF_8000 37 #define CX23885_BOARD_HAUPPAUGE_HVR4400 38 #define CX23885_BOARD_AVERMEDIA_HC81R 39 +#define CX23885_BOARD_TBS_6981 40 +#define CX23885_BOARD_TBS_6980 41 +#define CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200 42 #define GPIO_0 0x00000001 #define GPIO_1 0x00000002 diff --git a/drivers/media/pci/cx25821/cx25821-cards.c b/drivers/media/pci/cx25821/cx25821-cards.c index 3b409feb03d8..f2ebc989b303 100644 --- a/drivers/media/pci/cx25821/cx25821-cards.c +++ b/drivers/media/pci/cx25821/cx25821-cards.c @@ -45,5 +45,3 @@ struct cx25821_board cx25821_boards[] = { }, }; - -const unsigned int cx25821_bcount = ARRAY_SIZE(cx25821_boards); diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.c b/drivers/media/pci/cx25821/cx25821-medusa-video.c index 22fa04415ccc..43bdfa4dfba1 100644 --- a/drivers/media/pci/cx25821/cx25821-medusa-video.c +++ b/drivers/media/pci/cx25821/cx25821-medusa-video.c @@ -438,7 +438,7 @@ void medusa_set_resolution(struct cx25821_dev *dev, int width, decoder_count = decoder_select + 1; } else { decoder = 0; - decoder_count = _num_decoders; + decoder_count = dev->_max_num_decoders; } switch (width) { @@ -506,8 +506,6 @@ static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder, break; } - _display_field_cnt[decoder] = duration; - /* update hardware */ fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp); @@ -667,8 +665,6 @@ int medusa_video_init(struct cx25821_dev *dev) int ret_val = 0; int i = 0; - _num_decoders = dev->_max_num_decoders; - /* disable Auto source selection on all video decoders */ value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp); value &= 0xFFFFF0FF; @@ -685,8 +681,14 @@ int medusa_video_init(struct cx25821_dev *dev) if (ret_val < 0) goto error; - for (i = 0; i < _num_decoders; i++) - medusa_set_decoderduration(dev, i, _display_field_cnt[i]); + /* + * FIXME: due to a coding bug the duration was always 0. It's + * likely that it really should be something else, but due to the + * lack of documentation I have no idea what it should be. For + * now just fill in 0 as the duration. + */ + for (i = 0; i < dev->_max_num_decoders; i++) + medusa_set_decoderduration(dev, i, 0); /* Select monitor as DENC A input, power up the DAC */ value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp); @@ -717,7 +719,7 @@ int medusa_video_init(struct cx25821_dev *dev) /* Turn on all of the data out and control output pins. */ value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp); value &= 0xFEF0FE00; - if (_num_decoders == MAX_DECODERS) { + if (dev->_max_num_decoders == MAX_DECODERS) { /* * Note: The octal board does not support control pins(bit16-19) * These bits are ignored in the octal board. diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.h b/drivers/media/pci/cx25821/cx25821-medusa-video.h index 6175e0961855..8bf602ff27b1 100644 --- a/drivers/media/pci/cx25821/cx25821-medusa-video.h +++ b/drivers/media/pci/cx25821/cx25821-medusa-video.h @@ -40,10 +40,4 @@ #define CONTRAST_DEFAULT 5000 #define HUE_DEFAULT 5000 -unsigned short _num_decoders; -unsigned short _num_cameras; - -unsigned int _video_standard; -int _display_field_cnt[MAX_DECODERS]; - #endif diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream.c b/drivers/media/pci/cx25821/cx25821-video-upstream.c index 88ffef410c50..1f43be0b04c8 100644 --- a/drivers/media/pci/cx25821/cx25821-video-upstream.c +++ b/drivers/media/pci/cx25821/cx25821-video-upstream.c @@ -159,10 +159,10 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_channel *chan, __le32 * For the upstream video channel, the risc engine will enable * the FIFO. */ if (fifo_enable && line == 3) { - *(rp++) = RISC_WRITECR; - *(rp++) = sram_ch->dma_ctl; - *(rp++) = FLD_VID_FIFO_EN; - *(rp++) = 0x00000001; + *(rp++) = cpu_to_le32(RISC_WRITECR); + *(rp++) = cpu_to_le32(sram_ch->dma_ctl); + *(rp++) = cpu_to_le32(FLD_VID_FIFO_EN); + *(rp++) = cpu_to_le32(0x00000001); } } diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c index aba5b1c649e6..400eb1c42d3f 100644 --- a/drivers/media/pci/cx88/cx88-alsa.c +++ b/drivers/media/pci/cx88/cx88-alsa.c @@ -834,7 +834,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci, /* get irq */ err = request_irq(chip->pci->irq, cx8801_irq, - IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip); + IRQF_SHARED, chip->core->name, chip); if (err < 0) { dprintk(0, "%s: can't get IRQ %d\n", chip->core->name, chip->pci->irq); @@ -935,8 +935,6 @@ static void cx88_audio_finidev(struct pci_dev *pci) snd_card_free((void *)card); - pci_set_drvdata(pci, NULL); - devno--; } @@ -951,27 +949,4 @@ static struct pci_driver cx88_audio_pci_driver = { .remove = cx88_audio_finidev, }; -/**************************************************************************** - LINUX MODULE INIT - ****************************************************************************/ - -/* - * module init - */ -static int __init cx88_audio_init(void) -{ - printk(KERN_INFO "cx2388x alsa driver version %s loaded\n", - CX88_VERSION); - return pci_register_driver(&cx88_audio_pci_driver); -} - -/* - * module remove - */ -static void __exit cx88_audio_fini(void) -{ - pci_unregister_driver(&cx88_audio_pci_driver); -} - -module_init(cx88_audio_init); -module_exit(cx88_audio_fini); +module_pci_driver(cx88_audio_pci_driver); diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c index 2d3507eb4897..74b7b8614c23 100644 --- a/drivers/media/pci/cx88/cx88-mpeg.c +++ b/drivers/media/pci/cx88/cx88-mpeg.c @@ -499,7 +499,7 @@ static int cx8802_init_common(struct cx8802_dev *dev) /* get irq */ err = request_irq(dev->pci->irq, cx8802_irq, - IRQF_SHARED | IRQF_DISABLED, dev->core->name, dev); + IRQF_SHARED, dev->core->name, dev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d\n", dev->core->name, dev->pci->irq); @@ -520,7 +520,6 @@ static void cx8802_fini_common(struct cx8802_dev *dev) /* unregister stuff */ free_irq(dev->pci->irq, dev); - pci_set_drvdata(dev->pci, NULL); /* free memory */ btcx_riscmem_free(dev->pci,&dev->mpegq.stopper); @@ -903,20 +902,8 @@ static struct pci_driver cx8802_pci_driver = { .remove = cx8802_remove, }; -static int __init cx8802_init(void) -{ - printk(KERN_INFO "cx88/2: cx2388x MPEG-TS Driver Manager version %s loaded\n", - CX88_VERSION); - return pci_register_driver(&cx8802_pci_driver); -} - -static void __exit cx8802_fini(void) -{ - pci_unregister_driver(&cx8802_pci_driver); -} +module_pci_driver(cx8802_pci_driver); -module_init(cx8802_init); -module_exit(cx8802_fini); EXPORT_SYMBOL(cx8802_buf_prepare); EXPORT_SYMBOL(cx8802_buf_queue); EXPORT_SYMBOL(cx8802_cancel_buffers); diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c index ecf21d9f1f34..ed8cb9037b6f 100644 --- a/drivers/media/pci/cx88/cx88-video.c +++ b/drivers/media/pci/cx88/cx88-video.c @@ -1738,7 +1738,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev, /* get irq */ err = request_irq(pci_dev->irq, cx8800_irq, - IRQF_SHARED | IRQF_DISABLED, core->name, dev); + IRQF_SHARED, core->name, dev); if (err < 0) { printk(KERN_ERR "%s/0: can't get IRQ %d\n", core->name,pci_dev->irq); @@ -1922,7 +1922,6 @@ static void cx8800_finidev(struct pci_dev *pci_dev) free_irq(pci_dev->irq, dev); cx8800_unregister_video(dev); - pci_set_drvdata(pci_dev, NULL); /* free memory */ btcx_riscmem_free(dev->pci,&dev->vidq.stopper); @@ -2039,17 +2038,4 @@ static struct pci_driver cx8800_pci_driver = { #endif }; -static int __init cx8800_init(void) -{ - printk(KERN_INFO "cx88/0: cx2388x v4l2 driver version %s loaded\n", - CX88_VERSION); - return pci_register_driver(&cx8800_pci_driver); -} - -static void __exit cx8800_fini(void) -{ - pci_unregister_driver(&cx8800_pci_driver); -} - -module_init(cx8800_init); -module_exit(cx8800_fini); +module_pci_driver(cx8800_pci_driver); diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c index 36e34522b9a8..9375f30d9a81 100644 --- a/drivers/media/pci/ddbridge/ddbridge-core.c +++ b/drivers/media/pci/ddbridge/ddbridge-core.c @@ -1544,7 +1544,7 @@ static void ddb_unmap(struct ddb *dev) static void ddb_remove(struct pci_dev *pdev) { - struct ddb *dev = (struct ddb *) pci_get_drvdata(pdev); + struct ddb *dev = pci_get_drvdata(pdev); ddb_ports_detach(dev); ddb_i2c_release(dev); diff --git a/drivers/media/pci/dm1105/dm1105.c b/drivers/media/pci/dm1105/dm1105.c index ab797fe466d2..e60ac35fc10c 100644 --- a/drivers/media/pci/dm1105/dm1105.c +++ b/drivers/media/pci/dm1105/dm1105.c @@ -1178,7 +1178,6 @@ err_pci_release_regions: err_pci_disable_device: pci_disable_device(pdev); err_kfree: - pci_set_drvdata(pdev, NULL); kfree(dev); return ret; } @@ -1202,8 +1201,7 @@ static void dm1105_remove(struct pci_dev *pdev) dvb_dmxdev_release(&dev->dmxdev); dvb_dmx_release(dvbdemux); dvb_unregister_adapter(dvb_adapter); - if (&dev->i2c_adap) - i2c_del_adapter(&dev->i2c_adap); + i2c_del_adapter(&dev->i2c_adap); dm1105_hw_exit(dev); synchronize_irq(pdev->irq); @@ -1211,7 +1209,6 @@ static void dm1105_remove(struct pci_dev *pdev) pci_iounmap(pdev, dev->io_mem); pci_release_regions(pdev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); dm1105_devcount--; kfree(dev); } diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c index c08ae3eb9554..802642d26643 100644 --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -1261,7 +1261,7 @@ static int ivtv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) /* Register IRQ */ retval = request_irq(itv->pdev->irq, ivtv_irq_handler, - IRQF_SHARED | IRQF_DISABLED, itv->v4l2_dev.name, (void *)itv); + IRQF_SHARED, itv->v4l2_dev.name, (void *)itv); if (retval) { IVTV_ERR("Failed to register irq %d\n", retval); goto free_i2c; diff --git a/drivers/media/pci/mantis/mantis_pci.c b/drivers/media/pci/mantis/mantis_pci.c index a846036ea022..9e89e045213a 100644 --- a/drivers/media/pci/mantis/mantis_pci.c +++ b/drivers/media/pci/mantis/mantis_pci.c @@ -143,7 +143,6 @@ fail1: fail0: dprintk(MANTIS_ERROR, 1, "ERROR: <%d> exiting", ret); - pci_set_drvdata(pdev, NULL); return ret; } EXPORT_SYMBOL_GPL(mantis_pci_init); @@ -161,7 +160,6 @@ void mantis_pci_exit(struct mantis_pci *mantis) } pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); } EXPORT_SYMBOL_GPL(mantis_pci_exit); diff --git a/drivers/media/pci/meye/meye.c b/drivers/media/pci/meye/meye.c index 2381b05432e6..54d5c821007c 100644 --- a/drivers/media/pci/meye/meye.c +++ b/drivers/media/pci/meye/meye.c @@ -1698,7 +1698,7 @@ static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent) meye.mchip_irq = pcidev->irq; if (request_irq(meye.mchip_irq, meye_irq, - IRQF_DISABLED | IRQF_SHARED, "meye", meye_irq)) { + IRQF_SHARED, "meye", meye_irq)) { v4l2_err(v4l2_dev, "request_irq failed\n"); goto outreqirq; } diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c index 37ebc42392ad..970e83308525 100644 --- a/drivers/media/pci/ngene/ngene-core.c +++ b/drivers/media/pci/ngene/ngene-core.c @@ -1622,7 +1622,7 @@ static void ngene_unlink(struct ngene *dev) void ngene_shutdown(struct pci_dev *pdev) { - struct ngene *dev = (struct ngene *)pci_get_drvdata(pdev); + struct ngene *dev = pci_get_drvdata(pdev); if (!dev || !shutdown_workaround) return; @@ -1648,7 +1648,6 @@ void ngene_remove(struct pci_dev *pdev) cxd_detach(dev); ngene_stop(dev); ngene_release_buffers(dev); - pci_set_drvdata(pdev, NULL); pci_disable_device(pdev); } @@ -1702,6 +1701,5 @@ fail1: ngene_release_buffers(dev); fail0: pci_disable_device(pci_dev); - pci_set_drvdata(pci_dev, NULL); return stat; } diff --git a/drivers/media/pci/pluto2/pluto2.c b/drivers/media/pci/pluto2/pluto2.c index 493828500055..8164d74b46a4 100644 --- a/drivers/media/pci/pluto2/pluto2.c +++ b/drivers/media/pci/pluto2/pluto2.c @@ -736,7 +736,6 @@ err_pci_release_regions: err_pci_disable_device: pci_disable_device(pdev); err_kfree: - pci_set_drvdata(pdev, NULL); kfree(pluto); goto out; } @@ -765,7 +764,6 @@ static void pluto2_remove(struct pci_dev *pdev) pci_iounmap(pdev, pluto->io_mem); pci_release_regions(pdev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); kfree(pluto); } diff --git a/drivers/media/pci/pt1/pt1.c b/drivers/media/pci/pt1/pt1.c index 75ce14229e03..db887b0c37b1 100644 --- a/drivers/media/pci/pt1/pt1.c +++ b/drivers/media/pci/pt1/pt1.c @@ -1076,7 +1076,6 @@ static void pt1_remove(struct pci_dev *pdev) pt1_update_power(pt1); pt1_cleanup_adapters(pt1); i2c_del_adapter(&pt1->i2c_adap); - pci_set_drvdata(pdev, NULL); kfree(pt1); pci_iounmap(pdev, regs); pci_release_regions(pdev); @@ -1198,7 +1197,6 @@ err_i2c_del_adapter: err_pt1_cleanup_adapters: pt1_cleanup_adapters(pt1); err_kfree: - pci_set_drvdata(pdev, NULL); kfree(pt1); err_pci_iounmap: pci_iounmap(pdev, regs); diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c index dbcdfbf8aed0..dd67c8a400cc 100644 --- a/drivers/media/pci/saa7134/saa7134-alsa.c +++ b/drivers/media/pci/saa7134/saa7134-alsa.c @@ -1096,7 +1096,7 @@ static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum) err = request_irq(dev->pci->irq, saa7134_alsa_irq, - IRQF_SHARED | IRQF_DISABLED, dev->name, + IRQF_SHARED, dev->name, (void*) &dev->dmasound); if (err < 0) { diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c index 45f0aca597ae..27d7ee709c58 100644 --- a/drivers/media/pci/saa7134/saa7134-core.c +++ b/drivers/media/pci/saa7134/saa7134-core.c @@ -992,7 +992,7 @@ static int saa7134_initdev(struct pci_dev *pci_dev, /* get irq */ err = request_irq(pci_dev->irq, saa7134_irq, - IRQF_SHARED | IRQF_DISABLED, dev->name, dev); + IRQF_SHARED, dev->name, dev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name,pci_dev->irq); diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c index d37ee37aaefe..57ef5456f1e8 100644 --- a/drivers/media/pci/saa7164/saa7164-core.c +++ b/drivers/media/pci/saa7164/saa7164-core.c @@ -1232,7 +1232,7 @@ static int saa7164_initdev(struct pci_dev *pci_dev, } err = request_irq(pci_dev->irq, saa7164_irq, - IRQF_SHARED | IRQF_DISABLED, dev->name, dev); + IRQF_SHARED, dev->name, dev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name, pci_dev->irq); @@ -1439,7 +1439,6 @@ static void saa7164_finidev(struct pci_dev *pci_dev) /* unregister stuff */ free_irq(pci_dev->irq, dev); - pci_set_drvdata(pci_dev, NULL); mutex_lock(&devlist); list_del(&dev->devlist); diff --git a/drivers/media/pci/ttpci/av7110_hw.c b/drivers/media/pci/ttpci/av7110_hw.c index f1cbfe526989..6299d5dadb82 100644 --- a/drivers/media/pci/ttpci/av7110_hw.c +++ b/drivers/media/pci/ttpci/av7110_hw.c @@ -22,7 +22,7 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * Or, point your browser to http://www.gnu.org/copyleft/gpl.html * - * the project's page is at http://www.linuxtv.org/ + * the project's page is at http://www.linuxtv.org/ */ /* for debugging ARM communication: */ @@ -40,6 +40,14 @@ #define _NOHANDSHAKE +/* + * Max transfer size done by av7110_fw_cmd() + * + * The maximum size passed to this function is 6 bytes. The buffer also + * uses two additional ones for type and size. So, 8 bytes is enough. + */ +#define MAX_XFER_SIZE 8 + /**************************************************************************** * DEBI functions ****************************************************************************/ @@ -488,11 +496,18 @@ static int av7110_send_fw_cmd(struct av7110 *av7110, u16* buf, int length) int av7110_fw_cmd(struct av7110 *av7110, int type, int com, int num, ...) { va_list args; - u16 buf[num + 2]; + u16 buf[MAX_XFER_SIZE]; int i, ret; // dprintk(4, "%p\n", av7110); + if (2 + num > sizeof(buf)) { + printk(KERN_WARNING + "%s: %s len=%d is too big!\n", + KBUILD_MODNAME, __func__, num); + return -EINVAL; + } + buf[0] = ((type << 8) | com); buf[1] = num; diff --git a/drivers/media/pci/zoran/Kconfig b/drivers/media/pci/zoran/Kconfig index 26ca8702e33f..39ec35bd21a5 100644 --- a/drivers/media/pci/zoran/Kconfig +++ b/drivers/media/pci/zoran/Kconfig @@ -1,6 +1,7 @@ config VIDEO_ZORAN tristate "Zoran ZR36057/36067 Video For Linux" depends on PCI && I2C_ALGOBIT && VIDEO_V4L2 && VIRT_TO_BUS + depends on !ALPHA help Say Y for support for MJPEG capture cards based on the Zoran 36057/36067 PCI controller chipset. This includes the Iomega diff --git a/drivers/media/pci/zoran/zoran_card.c b/drivers/media/pci/zoran/zoran_card.c index 923d59a321f8..cec5b7553f28 100644 --- a/drivers/media/pci/zoran/zoran_card.c +++ b/drivers/media/pci/zoran/zoran_card.c @@ -1293,7 +1293,7 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } result = request_irq(zr->pci_dev->irq, zoran_irq, - IRQF_SHARED | IRQF_DISABLED, ZR_DEVNAME(zr), zr); + IRQF_SHARED, ZR_DEVNAME(zr), zr); if (result < 0) { if (result == -EINVAL) { dprintk(1, diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index eb70dda8cbf3..d7f0249e4050 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -143,6 +143,7 @@ if V4L_MEM2MEM_DRIVERS config VIDEO_CODA tristate "Chips&Media Coda multi-standard codec IP" depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MXC + select SRAM select VIDEOBUF2_DMA_CONTIG select V4L2_MEM2MEM_DEV ---help--- @@ -212,7 +213,7 @@ config VIDEO_SH_VEU config VIDEO_RENESAS_VSP1 tristate "Renesas VSP1 Video Processing Engine" - depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA select VIDEOBUF2_DMA_CONTIG ---help--- This is a V4L2 driver for the Renesas VSP1 video processing engine. @@ -220,6 +221,22 @@ config VIDEO_RENESAS_VSP1 To compile this driver as a module, choose M here: the module will be called vsp1. +config VIDEO_TI_VPE + tristate "TI VPE (Video Processing Engine) driver" + depends on VIDEO_DEV && VIDEO_V4L2 && SOC_DRA7XX + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + default n + ---help--- + Support for the TI VPE(Video Processing Engine) block + found on DRA7XX SoC. + +config VIDEO_TI_VPE_DEBUG + bool "VPE debug messages" + depends on VIDEO_TI_VPE + ---help--- + Enable debug messages on VPE driver. + endif # V4L_MEM2MEM_DRIVERS menuconfig V4L_TEST_DRIVERS diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index 4e4da482c522..1348ba1faf92 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -22,6 +22,8 @@ obj-$(CONFIG_VIDEO_VIVI) += vivi.o obj-$(CONFIG_VIDEO_MEM2MEM_TESTDEV) += mem2mem_testdev.o +obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe/ + obj-$(CONFIG_VIDEO_MX2_EMMAPRP) += mx2_emmaprp.o obj-$(CONFIG_VIDEO_CODA) += coda.o diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c index 4993610051ee..bd72fb97fea5 100644 --- a/drivers/media/platform/coda.c +++ b/drivers/media/platform/coda.c @@ -39,7 +39,7 @@ #define CODA_NAME "coda" -#define CODA_MAX_INSTANCES 4 +#define CODADX6_MAX_INSTANCES 4 #define CODA_FMO_BUF_SIZE 32 #define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024) @@ -54,8 +54,6 @@ #define CODA_MAX_FRAMEBUFFERS 8 -#define MAX_W 8192 -#define MAX_H 8192 #define CODA_MAX_FRAME_SIZE 0x100000 #define FMO_SLICE_SAVE_BUF_SIZE (32) #define CODA_DEFAULT_GAMMA 4096 @@ -394,14 +392,57 @@ static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc, return &codecs[k]; } +static void coda_get_max_dimensions(struct coda_dev *dev, + struct coda_codec *codec, + int *max_w, int *max_h) +{ + struct coda_codec *codecs = dev->devtype->codecs; + int num_codecs = dev->devtype->num_codecs; + unsigned int w, h; + int k; + + if (codec) { + w = codec->max_w; + h = codec->max_h; + } else { + for (k = 0, w = 0, h = 0; k < num_codecs; k++) { + w = max(w, codecs[k].max_w); + h = max(h, codecs[k].max_h); + } + } + + if (max_w) + *max_w = w; + if (max_h) + *max_h = h; +} + +static char *coda_product_name(int product) +{ + static char buf[9]; + + switch (product) { + case CODA_DX6: + return "CodaDx6"; + case CODA_7541: + return "CODA7541"; + default: + snprintf(buf, sizeof(buf), "(0x%04x)", product); + return buf; + } +} + /* * V4L2 ioctl() operations. */ -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) +static int coda_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) { + struct coda_ctx *ctx = fh_to_ctx(priv); + strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver)); - strlcpy(cap->card, CODA_NAME, sizeof(cap->card)); + strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product), + sizeof(cap->card)); strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info)); /* * This is only a mem-to-mem video device. The capture and output @@ -457,6 +498,8 @@ static int enum_fmt(void *priv, struct v4l2_fmtdesc *f, fmt = &formats[i]; strlcpy(f->description, fmt->name, sizeof(f->description)); f->pixelformat = fmt->fourcc; + if (!coda_format_is_yuv(fmt->fourcc)) + f->flags |= V4L2_FMT_FLAG_COMPRESSED; return 0; } @@ -464,8 +507,8 @@ static int enum_fmt(void *priv, struct v4l2_fmtdesc *f, return -EINVAL; } -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) +static int coda_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) { struct coda_ctx *ctx = fh_to_ctx(priv); struct vb2_queue *src_vq; @@ -483,13 +526,14 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0); } -static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, - struct v4l2_fmtdesc *f) +static int coda_enum_fmt_vid_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) { return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0); } -static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) +static int coda_g_fmt(struct file *file, void *priv, + struct v4l2_format *f) { struct vb2_queue *vq; struct coda_q_data *q_data; @@ -516,8 +560,11 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f) return 0; } -static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f) +static int coda_try_fmt(struct coda_ctx *ctx, struct coda_codec *codec, + struct v4l2_format *f) { + struct coda_dev *dev = ctx->dev; + struct coda_q_data *q_data; unsigned int max_w, max_h; enum v4l2_field field; @@ -531,32 +578,48 @@ static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f) * if any of the dimensions is unsupported */ f->fmt.pix.field = field; - if (codec) { - max_w = codec->max_w; - max_h = codec->max_h; - } else { - max_w = MAX_W; - max_h = MAX_H; + coda_get_max_dimensions(dev, codec, &max_w, &max_h); + v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN, + &f->fmt.pix.height, MIN_H, max_h, H_ALIGN, + S_ALIGN); + + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + case V4L2_PIX_FMT_H264: + case V4L2_PIX_FMT_MPEG4: + case V4L2_PIX_FMT_JPEG: + break; + default: + q_data = get_q_data(ctx, f->type); + f->fmt.pix.pixelformat = q_data->fourcc; } - v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, - W_ALIGN, &f->fmt.pix.height, - MIN_H, max_h, H_ALIGN, S_ALIGN); - if (coda_format_is_yuv(f->fmt.pix.pixelformat)) { + switch (f->fmt.pix.pixelformat) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: /* Frame stride must be multiple of 8 */ f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 8); f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height * 3 / 2; - } else { /*encoded formats h.264/mpeg4 */ + break; + case V4L2_PIX_FMT_H264: + case V4L2_PIX_FMT_MPEG4: + case V4L2_PIX_FMT_JPEG: f->fmt.pix.bytesperline = 0; f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE; + break; + default: + BUG(); } + f->fmt.pix.priv = 0; + return 0; } -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) +static int coda_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) { struct coda_ctx *ctx = fh_to_ctx(priv); struct coda_codec *codec; @@ -584,7 +647,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, f->fmt.pix.colorspace = ctx->colorspace; - ret = vidioc_try_fmt(codec, f); + ret = coda_try_fmt(ctx, codec, f); if (ret < 0) return ret; @@ -600,8 +663,8 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, return 0; } -static int vidioc_try_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *f) +static int coda_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) { struct coda_ctx *ctx = fh_to_ctx(priv); struct coda_codec *codec; @@ -613,10 +676,10 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *priv, if (!f->fmt.pix.colorspace) f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; - return vidioc_try_fmt(codec, f); + return coda_try_fmt(ctx, codec, f); } -static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f) +static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f) { struct coda_q_data *q_data; struct vb2_queue *vq; @@ -646,61 +709,62 @@ static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f) return 0; } -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) +static int coda_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) { struct coda_ctx *ctx = fh_to_ctx(priv); int ret; - ret = vidioc_try_fmt_vid_cap(file, priv, f); + ret = coda_try_fmt_vid_cap(file, priv, f); if (ret) return ret; - return vidioc_s_fmt(ctx, f); + return coda_s_fmt(ctx, f); } -static int vidioc_s_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *f) +static int coda_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) { struct coda_ctx *ctx = fh_to_ctx(priv); int ret; - ret = vidioc_try_fmt_vid_out(file, priv, f); + ret = coda_try_fmt_vid_out(file, priv, f); if (ret) return ret; - ret = vidioc_s_fmt(ctx, f); + ret = coda_s_fmt(ctx, f); if (ret) ctx->colorspace = f->fmt.pix.colorspace; return ret; } -static int vidioc_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *reqbufs) +static int coda_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *reqbufs) { struct coda_ctx *ctx = fh_to_ctx(priv); return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); } -static int vidioc_querybuf(struct file *file, void *priv, - struct v4l2_buffer *buf) +static int coda_querybuf(struct file *file, void *priv, + struct v4l2_buffer *buf) { struct coda_ctx *ctx = fh_to_ctx(priv); return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); } -static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +static int coda_qbuf(struct file *file, void *priv, + struct v4l2_buffer *buf) { struct coda_ctx *ctx = fh_to_ctx(priv); return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); } -static int vidioc_expbuf(struct file *file, void *priv, - struct v4l2_exportbuffer *eb) +static int coda_expbuf(struct file *file, void *priv, + struct v4l2_exportbuffer *eb) { struct coda_ctx *ctx = fh_to_ctx(priv); @@ -718,7 +782,8 @@ static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx, (buf->sequence == (ctx->qsequence - 1))); } -static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +static int coda_dqbuf(struct file *file, void *priv, + struct v4l2_buffer *buf) { struct coda_ctx *ctx = fh_to_ctx(priv); int ret; @@ -738,24 +803,24 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) return ret; } -static int vidioc_create_bufs(struct file *file, void *priv, - struct v4l2_create_buffers *create) +static int coda_create_bufs(struct file *file, void *priv, + struct v4l2_create_buffers *create) { struct coda_ctx *ctx = fh_to_ctx(priv); return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create); } -static int vidioc_streamon(struct file *file, void *priv, - enum v4l2_buf_type type) +static int coda_streamon(struct file *file, void *priv, + enum v4l2_buf_type type) { struct coda_ctx *ctx = fh_to_ctx(priv); return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); } -static int vidioc_streamoff(struct file *file, void *priv, - enum v4l2_buf_type type) +static int coda_streamoff(struct file *file, void *priv, + enum v4l2_buf_type type) { struct coda_ctx *ctx = fh_to_ctx(priv); int ret; @@ -772,23 +837,34 @@ static int vidioc_streamoff(struct file *file, void *priv, return ret; } -static int vidioc_decoder_cmd(struct file *file, void *fh, - struct v4l2_decoder_cmd *dc) +static int coda_try_decoder_cmd(struct file *file, void *fh, + struct v4l2_decoder_cmd *dc) { - struct coda_ctx *ctx = fh_to_ctx(fh); - if (dc->cmd != V4L2_DEC_CMD_STOP) return -EINVAL; - if ((dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) || - (dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY)) + if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) return -EINVAL; - if (dc->stop.pts != 0) + if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0)) return -EINVAL; + return 0; +} + +static int coda_decoder_cmd(struct file *file, void *fh, + struct v4l2_decoder_cmd *dc) +{ + struct coda_ctx *ctx = fh_to_ctx(fh); + int ret; + + ret = coda_try_decoder_cmd(file, fh, dc); + if (ret < 0) + return ret; + + /* Ignore decoder stop command silently in encoder context */ if (ctx->inst_type != CODA_INST_DECODER) - return -EINVAL; + return 0; /* Set the strem-end flag on this context */ ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG; @@ -796,8 +872,8 @@ static int vidioc_decoder_cmd(struct file *file, void *fh, return 0; } -static int vidioc_subscribe_event(struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) +static int coda_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) { switch (sub->type) { case V4L2_EVENT_EOS: @@ -808,32 +884,33 @@ static int vidioc_subscribe_event(struct v4l2_fh *fh, } static const struct v4l2_ioctl_ops coda_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, + .vidioc_querycap = coda_querycap, - .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, + .vidioc_enum_fmt_vid_cap = coda_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = coda_g_fmt, + .vidioc_try_fmt_vid_cap = coda_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = coda_s_fmt_vid_cap, - .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, - .vidioc_g_fmt_vid_out = vidioc_g_fmt, - .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, - .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, + .vidioc_enum_fmt_vid_out = coda_enum_fmt_vid_out, + .vidioc_g_fmt_vid_out = coda_g_fmt, + .vidioc_try_fmt_vid_out = coda_try_fmt_vid_out, + .vidioc_s_fmt_vid_out = coda_s_fmt_vid_out, - .vidioc_reqbufs = vidioc_reqbufs, - .vidioc_querybuf = vidioc_querybuf, + .vidioc_reqbufs = coda_reqbufs, + .vidioc_querybuf = coda_querybuf, - .vidioc_qbuf = vidioc_qbuf, - .vidioc_expbuf = vidioc_expbuf, - .vidioc_dqbuf = vidioc_dqbuf, - .vidioc_create_bufs = vidioc_create_bufs, + .vidioc_qbuf = coda_qbuf, + .vidioc_expbuf = coda_expbuf, + .vidioc_dqbuf = coda_dqbuf, + .vidioc_create_bufs = coda_create_bufs, - .vidioc_streamon = vidioc_streamon, - .vidioc_streamoff = vidioc_streamoff, + .vidioc_streamon = coda_streamon, + .vidioc_streamoff = coda_streamoff, - .vidioc_decoder_cmd = vidioc_decoder_cmd, + .vidioc_try_decoder_cmd = coda_try_decoder_cmd, + .vidioc_decoder_cmd = coda_decoder_cmd, - .vidioc_subscribe_event = vidioc_subscribe_event, + .vidioc_subscribe_event = coda_subscribe_event, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; @@ -1928,8 +2005,9 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) if (!(ctx->streamon_out & ctx->streamon_cap)) return 0; - /* Allow device_run with no buffers queued and after streamoff */ - v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true); + /* Allow decoder device_run with no new buffers queued */ + if (ctx->inst_type == CODA_INST_DECODER) + v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true); ctx->gopcounter = ctx->params.gop_size - 1; buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); @@ -2071,10 +2149,8 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) coda_setup_iram(ctx); if (dst_fourcc == V4L2_PIX_FMT_H264) { - value = (FMO_SLICE_SAVE_BUF_SIZE << 7); - value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET; - value |= 0 & CODA_FMOPARAM_SLICENUM_MASK; if (dev->devtype->product == CODA_DX6) { + value = FMO_SLICE_SAVE_BUF_SIZE << 7; coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO); } else { coda_write(dev, ctx->iram_info.search_ram_paddr, @@ -2371,7 +2447,13 @@ static int coda_queue_init(void *priv, struct vb2_queue *src_vq, static int coda_next_free_instance(struct coda_dev *dev) { - return ffz(dev->instance_mask); + int idx = ffz(dev->instance_mask); + + if ((idx < 0) || + (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES)) + return -EBUSY; + + return idx; } static int coda_open(struct file *file) @@ -2386,8 +2468,8 @@ static int coda_open(struct file *file) return -ENOMEM; idx = coda_next_free_instance(dev); - if (idx >= CODA_MAX_INSTANCES) { - ret = -EBUSY; + if (idx < 0) { + ret = idx; goto err_coda_max; } set_bit(idx, &dev->instance_mask); @@ -2719,7 +2801,6 @@ static void coda_finish_encode(struct coda_ctx *ctx) dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); /* Get results from the coda */ - coda_read(dev, CODA_RET_ENC_PIC_TYPE); start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START); wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx)); @@ -2739,7 +2820,7 @@ static void coda_finish_encode(struct coda_ctx *ctx) coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM); coda_read(dev, CODA_RET_ENC_PIC_FLAG); - if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) { + if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0) { dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME; } else { @@ -2861,21 +2942,6 @@ static bool coda_firmware_supported(u32 vernum) return false; } -static char *coda_product_name(int product) -{ - static char buf[9]; - - switch (product) { - case CODA_DX6: - return "CodaDx6"; - case CODA_7541: - return "CODA7541"; - default: - snprintf(buf, sizeof(buf), "(0x%04x)", product); - return buf; - } -} - static int coda_hw_init(struct coda_dev *dev) { u16 product, major, minor, release; diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c index 04609cc6eba7..eac472b5ae83 100644 --- a/drivers/media/platform/davinci/vpbe_display.c +++ b/drivers/media/platform/davinci/vpbe_display.c @@ -1785,7 +1785,7 @@ static int vpbe_display_probe(struct platform_device *pdev) } irq = res->start; - err = devm_request_irq(&pdev->dev, irq, venc_isr, IRQF_DISABLED, + err = devm_request_irq(&pdev->dev, irq, venc_isr, 0, VPBE_DISPLAY_DRIVER, disp_dev); if (err) { v4l2_err(&disp_dev->vpbe_dev->v4l2_dev, diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c index 93609091cb23..d762246eabf5 100644 --- a/drivers/media/platform/davinci/vpfe_capture.c +++ b/drivers/media/platform/davinci/vpfe_capture.c @@ -688,7 +688,7 @@ static int vpfe_attach_irq(struct vpfe_device *vpfe_dev) frame_format = ccdc_dev->hw_ops.get_frame_format(); if (frame_format == CCDC_FRMFMT_PROGRESSIVE) { return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr, - IRQF_DISABLED, "vpfe_capture1", + 0, "vpfe_capture1", vpfe_dev); } return 0; @@ -1863,7 +1863,7 @@ static int vpfe_probe(struct platform_device *pdev) } vpfe_dev->ccdc_irq1 = res1->start; - ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED, + ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0, "vpfe_capture0", vpfe_dev); if (0 != ret) { diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index 1089834a4efe..52ac5e6c8625 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -2154,7 +2154,7 @@ static __init int vpif_probe(struct platform_device *pdev) if (!vpif_obj.sd[i]) { vpif_err("Error registering v4l2 subdevice\n"); - err = -ENOMEM; + err = -ENODEV; goto probe_subdev_out; } v4l2_info(&vpif_obj.v4l2_dev, diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h b/drivers/media/platform/exynos-gsc/gsc-core.h index 76435d3bf62d..ef0a6564cef9 100644 --- a/drivers/media/platform/exynos-gsc/gsc-core.h +++ b/drivers/media/platform/exynos-gsc/gsc-core.h @@ -45,6 +45,7 @@ #define GSC_DST_FMT (1 << 2) #define GSC_CTX_M2M (1 << 3) #define GSC_CTX_STOP_REQ (1 << 6) +#define GSC_CTX_ABORT (1 << 7) enum gsc_dev_flags { /* for global */ diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c index e576ff2de3de..810c3e13970c 100644 --- a/drivers/media/platform/exynos-gsc/gsc-m2m.c +++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c @@ -46,6 +46,17 @@ static int gsc_m2m_ctx_stop_req(struct gsc_ctx *ctx) return ret == 0 ? -ETIMEDOUT : ret; } +static void __gsc_m2m_job_abort(struct gsc_ctx *ctx) +{ + int ret; + + ret = gsc_m2m_ctx_stop_req(ctx); + if ((ret == -ETIMEDOUT) || (ctx->state & GSC_CTX_ABORT)) { + gsc_ctx_state_lock_clear(GSC_CTX_STOP_REQ | GSC_CTX_ABORT, ctx); + gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + } +} + static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count) { struct gsc_ctx *ctx = q->drv_priv; @@ -58,11 +69,8 @@ static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count) static int gsc_m2m_stop_streaming(struct vb2_queue *q) { struct gsc_ctx *ctx = q->drv_priv; - int ret; - ret = gsc_m2m_ctx_stop_req(ctx); - if (ret == -ETIMEDOUT) - gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + __gsc_m2m_job_abort(ctx); pm_runtime_put(&ctx->gsc_dev->pdev->dev); @@ -91,15 +99,9 @@ void gsc_m2m_job_finish(struct gsc_ctx *ctx, int vb_state) } } - static void gsc_m2m_job_abort(void *priv) { - struct gsc_ctx *ctx = priv; - int ret; - - ret = gsc_m2m_ctx_stop_req(ctx); - if (ret == -ETIMEDOUT) - gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR); + __gsc_m2m_job_abort((struct gsc_ctx *)priv); } static int gsc_get_bufs(struct gsc_ctx *ctx) @@ -150,9 +152,10 @@ static void gsc_m2m_device_run(void *priv) gsc->m2m.ctx = ctx; } - is_set = (ctx->state & GSC_CTX_STOP_REQ) ? 1 : 0; - ctx->state &= ~GSC_CTX_STOP_REQ; + is_set = ctx->state & GSC_CTX_STOP_REQ; if (is_set) { + ctx->state &= ~GSC_CTX_STOP_REQ; + ctx->state |= GSC_CTX_ABORT; wake_up(&gsc->irq_queue); goto put_device; } diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c index d2e6cba3566d..f3c6136aa5b4 100644 --- a/drivers/media/platform/exynos4-is/fimc-isp.c +++ b/drivers/media/platform/exynos4-is/fimc-isp.c @@ -511,7 +511,7 @@ static int __ctrl_set_metering(struct fimc_is *is, unsigned int value) break; default: return -EINVAL; - }; + } __is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val); return 0; diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index a83511278317..7a4ee4c0449d 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -411,8 +411,8 @@ static int fimc_md_of_add_sensor(struct fimc_md *fmd, device_lock(&client->dev); - if (!client->driver || - !try_module_get(client->driver->driver.owner)) { + if (!client->dev.driver || + !try_module_get(client->dev.driver->owner)) { ret = -EPROBE_DEFER; v4l2_info(&fmd->v4l2_dev, "No driver found for %s\n", node->full_name); @@ -442,7 +442,7 @@ static int fimc_md_of_add_sensor(struct fimc_md *fmd, fmd->num_sensors++; mod_put: - module_put(client->driver->driver.owner); + module_put(client->dev.driver->owner); dev_put: device_unlock(&client->dev); put_device(&client->dev); diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c index 540516ca872c..65cab70fefcb 100644 --- a/drivers/media/platform/m2m-deinterlace.c +++ b/drivers/media/platform/m2m-deinterlace.c @@ -341,8 +341,7 @@ static void deinterlace_issue_dma(struct deinterlace_ctx *ctx, int op, ctx->xt->dir = DMA_MEM_TO_MEM; ctx->xt->src_sgl = false; ctx->xt->dst_sgl = true; - flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | - DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SKIP_SRC_UNMAP; + flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; tx = dmadev->device_prep_interleaved_dma(chan, ctx->xt, flags); if (tx == NULL) { @@ -1084,8 +1083,7 @@ free_dev: static int deinterlace_remove(struct platform_device *pdev) { - struct deinterlace_dev *pcdev = - (struct deinterlace_dev *)platform_get_drvdata(pdev); + struct deinterlace_dev *pcdev = platform_get_drvdata(pdev); v4l2_info(&pcdev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME); v4l2_m2m_release(pcdev->m2m_dev); diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index 5184887b155c..32fab30a9105 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -1221,16 +1221,16 @@ static int mcam_vb_sg_buf_prepare(struct vb2_buffer *vb) { struct mcam_vb_buffer *mvb = vb_to_mvb(vb); struct mcam_camera *cam = vb2_get_drv_priv(vb->vb2_queue); - struct vb2_dma_sg_desc *sgd = vb2_dma_sg_plane_desc(vb, 0); + struct sg_table *sg_table = vb2_dma_sg_plane_desc(vb, 0); struct mcam_dma_desc *desc = mvb->dma_desc; struct scatterlist *sg; int i; - mvb->dma_desc_nent = dma_map_sg(cam->dev, sgd->sglist, sgd->num_pages, - DMA_FROM_DEVICE); + mvb->dma_desc_nent = dma_map_sg(cam->dev, sg_table->sgl, + sg_table->nents, DMA_FROM_DEVICE); if (mvb->dma_desc_nent <= 0) return -EIO; /* Not sure what's right here */ - for_each_sg(sgd->sglist, sg, mvb->dma_desc_nent, i) { + for_each_sg(sg_table->sgl, sg, mvb->dma_desc_nent, i) { desc->dma_addr = sg_dma_address(sg); desc->segment_len = sg_dma_len(sg); desc++; @@ -1241,9 +1241,11 @@ static int mcam_vb_sg_buf_prepare(struct vb2_buffer *vb) static int mcam_vb_sg_buf_finish(struct vb2_buffer *vb) { struct mcam_camera *cam = vb2_get_drv_priv(vb->vb2_queue); - struct vb2_dma_sg_desc *sgd = vb2_dma_sg_plane_desc(vb, 0); + struct sg_table *sg_table = vb2_dma_sg_plane_desc(vb, 0); - dma_unmap_sg(cam->dev, sgd->sglist, sgd->num_pages, DMA_FROM_DEVICE); + if (sg_table) + dma_unmap_sg(cam->dev, sg_table->sgl, + sg_table->nents, DMA_FROM_DEVICE); return 0; } diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c index b5a19af5c587..3458fa0e2fd5 100644 --- a/drivers/media/platform/marvell-ccic/mmp-driver.c +++ b/drivers/media/platform/marvell-ccic/mmp-driver.c @@ -481,7 +481,6 @@ static int mmpcam_remove(struct mmp_camera *cam) struct mmp_camera_platform_data *pdata; mmpcam_remove_device(cam); - free_irq(cam->irq, mcam); mccic_shutdown(mcam); mmpcam_power_down(mcam); pdata = cam->pdev->dev.platform_data; diff --git a/drivers/media/platform/mem2mem_testdev.c b/drivers/media/platform/mem2mem_testdev.c index 6a17676f9d72..8df5975b700a 100644 --- a/drivers/media/platform/mem2mem_testdev.c +++ b/drivers/media/platform/mem2mem_testdev.c @@ -1090,8 +1090,7 @@ unreg_dev: static int m2mtest_remove(struct platform_device *pdev) { - struct m2mtest_dev *dev = - (struct m2mtest_dev *)platform_get_drvdata(pdev); + struct m2mtest_dev *dev = platform_get_drvdata(pdev); v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME); v4l2_m2m_release(dev->m2m_dev); diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c index fd6289d60cde..0b2948376aee 100644 --- a/drivers/media/platform/s5p-g2d/g2d.c +++ b/drivers/media/platform/s5p-g2d/g2d.c @@ -840,7 +840,7 @@ put_clk: static int g2d_remove(struct platform_device *pdev) { - struct g2d_dev *dev = (struct g2d_dev *)platform_get_drvdata(pdev); + struct g2d_dev *dev = platform_get_drvdata(pdev); v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME); v4l2_m2m_release(dev->m2m_dev); diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 084263dd126f..5f2c4ad6c2cb 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -404,7 +404,11 @@ leave_handle_frame: if (test_and_clear_bit(0, &dev->hw_lock) == 0) BUG(); s5p_mfc_clock_off(); - s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); + /* if suspending, wake up device and do not try_run again*/ + if (test_bit(0, &dev->enter_suspend)) + wake_up_dev(dev, reason, err); + else + s5p_mfc_hw_call(dev->mfc_ops, try_run, dev); } /* Error handling for interrupt */ @@ -1101,7 +1105,7 @@ static int s5p_mfc_probe(struct platform_device *pdev) } dev->irq = res->start; ret = devm_request_irq(&pdev->dev, dev->irq, s5p_mfc_irq, - IRQF_DISABLED, pdev->name, dev); + 0, pdev->name, dev); if (ret) { dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret); goto err_res; @@ -1286,9 +1290,7 @@ static int s5p_mfc_suspend(struct device *dev) /* Try and lock the HW */ /* Wait on the interrupt waitqueue */ ret = wait_event_interruptible_timeout(m_dev->queue, - m_dev->int_cond || m_dev->ctx[m_dev->curr_ctx]->int_cond, - msecs_to_jiffies(MFC_INT_TIMEOUT)); - + m_dev->int_cond, msecs_to_jiffies(MFC_INT_TIMEOUT)); if (ret == 0) { mfc_err("Waiting for hardware to finish timed out\n"); return -EIO; diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c index ad4f1df0a18e..9a6efd6c1329 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c @@ -111,7 +111,7 @@ static int s5p_mfc_open_inst_cmd_v5(struct s5p_mfc_ctx *ctx) break; default: h2r_args.arg[0] = S5P_FIMV_CODEC_NONE; - }; + } h2r_args.arg[1] = 0; /* no crc & no pixelcache */ h2r_args.arg[2] = ctx->ctx.ofs; h2r_args.arg[3] = ctx->ctx.size; diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c index db796c8e7874..ec1a5947ed7d 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c @@ -113,7 +113,7 @@ static int s5p_mfc_open_inst_cmd_v6(struct s5p_mfc_ctx *ctx) break; default: codec_type = S5P_FIMV_CODEC_NONE_V6; - }; + } mfc_write(dev, codec_type, S5P_FIMV_CODEC_TYPE_V6); mfc_write(dev, ctx->ctx.dma, S5P_FIMV_CONTEXT_MEM_ADDR_V6); mfc_write(dev, ctx->ctx.size, S5P_FIMV_CONTEXT_MEM_SIZE_V6); diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c index 41f5a3c10dbd..4ff3b6cd6842 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c @@ -113,7 +113,7 @@ static struct mfc_control controls[] = { .minimum = 0, .maximum = (1 << 16) - 1, .step = 1, - .default_value = 0, + .default_value = 12, }, { .id = V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE, @@ -356,7 +356,7 @@ static struct mfc_control controls[] = { .minimum = 0, .maximum = 51, .step = 1, - .default_value = 1, + .default_value = 51, }, { .id = V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, @@ -399,7 +399,7 @@ static struct mfc_control controls[] = { .minimum = 1, .maximum = 31, .step = 1, - .default_value = 1, + .default_value = 31, }, { .id = V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP, @@ -444,7 +444,7 @@ static struct mfc_control controls[] = { .minimum = 0, .maximum = 51, .step = 1, - .default_value = 1, + .default_value = 51, }, { .id = V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c index 368582b091bf..58ec7bb26ebc 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c @@ -1582,7 +1582,7 @@ static int s5p_mfc_get_int_reason_v5(struct s5p_mfc_dev *dev) break; default: reason = S5P_MFC_R2H_CMD_EMPTY; - }; + } return reason; } diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c index b93a21f5aa13..74344c764daa 100644 --- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c +++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c @@ -226,7 +226,7 @@ static void mxr_graph_fix_geometry(struct mxr_layer *layer, src->width + src->x_offset, 32767); src->full_height = clamp_val(src->full_height, src->height + src->y_offset, 2047); - }; + } } /* PUBLIC API */ diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c index 3d13a636877b..c9388c45ad75 100644 --- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c +++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c @@ -197,7 +197,7 @@ static void mxr_vp_fix_geometry(struct mxr_layer *layer, ALIGN(src->width + src->x_offset, 8), 8192U); src->full_height = clamp(src->full_height, src->height + src->y_offset, 8192U); - }; + } } /* PUBLIC API */ diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c index d02a7e0b773f..6866bb4fbebc 100644 --- a/drivers/media/platform/soc_camera/rcar_vin.c +++ b/drivers/media/platform/soc_camera/rcar_vin.c @@ -16,6 +16,7 @@ #include <linux/delay.h> #include <linux/interrupt.h> +#include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_data/camera-rcar.h> @@ -105,6 +106,7 @@ #define VIN_MAX_HEIGHT 2048 enum chip_id { + RCAR_H2, RCAR_H1, RCAR_M1, RCAR_E1, @@ -300,7 +302,8 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv) dmr = 0; break; case V4L2_PIX_FMT_RGB32: - if (priv->chip == RCAR_H1 || priv->chip == RCAR_E1) { + if (priv->chip == RCAR_H2 || priv->chip == RCAR_H1 || + priv->chip == RCAR_E1) { dmr = VNDMR_EXRGB; break; } @@ -1381,6 +1384,7 @@ static struct soc_camera_host_ops rcar_vin_host_ops = { }; static struct platform_device_id rcar_vin_id_table[] = { + { "r8a7790-vin", RCAR_H2 }, { "r8a7779-vin", RCAR_H1 }, { "r8a7778-vin", RCAR_M1 }, { "uPD35004-vin", RCAR_E1 }, diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c index 8df22f779175..150bd4df413c 100644 --- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c +++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c @@ -1800,7 +1800,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev) /* request irq */ err = devm_request_irq(&pdev->dev, pcdev->irq, sh_mobile_ceu_irq, - IRQF_DISABLED, dev_name(&pdev->dev), pcdev); + 0, dev_name(&pdev->dev), pcdev); if (err) { dev_err(&pdev->dev, "Unable to register CEU interrupt.\n"); goto exit_release_mem; diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c index 387a232d95a4..4b8c024fc487 100644 --- a/drivers/media/platform/soc_camera/soc_camera.c +++ b/drivers/media/platform/soc_camera/soc_camera.c @@ -71,13 +71,23 @@ static int video_dev_create(struct soc_camera_device *icd); int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd, struct v4l2_clk *clk) { - int ret = clk ? v4l2_clk_enable(clk) : 0; - if (ret < 0) { - dev_err(dev, "Cannot enable clock: %d\n", ret); - return ret; + int ret; + bool clock_toggle; + + if (clk && (!ssdd->unbalanced_power || + !test_and_set_bit(0, &ssdd->clock_state))) { + ret = v4l2_clk_enable(clk); + if (ret < 0) { + dev_err(dev, "Cannot enable clock: %d\n", ret); + return ret; + } + clock_toggle = true; + } else { + clock_toggle = false; } - ret = regulator_bulk_enable(ssdd->num_regulators, - ssdd->regulators); + + ret = regulator_bulk_enable(ssdd->sd_pdata.num_regulators, + ssdd->sd_pdata.regulators); if (ret < 0) { dev_err(dev, "Cannot enable regulators\n"); goto eregenable; @@ -95,10 +105,10 @@ int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd, return 0; epwron: - regulator_bulk_disable(ssdd->num_regulators, - ssdd->regulators); + regulator_bulk_disable(ssdd->sd_pdata.num_regulators, + ssdd->sd_pdata.regulators); eregenable: - if (clk) + if (clock_toggle) v4l2_clk_disable(clk); return ret; @@ -120,14 +130,14 @@ int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd } } - err = regulator_bulk_disable(ssdd->num_regulators, - ssdd->regulators); + err = regulator_bulk_disable(ssdd->sd_pdata.num_regulators, + ssdd->sd_pdata.regulators); if (err < 0) { dev_err(dev, "Cannot disable regulators\n"); ret = ret ? : err; } - if (clk) + if (clk && (!ssdd->unbalanced_power || test_and_clear_bit(0, &ssdd->clock_state))) v4l2_clk_disable(clk); return ret; @@ -137,8 +147,8 @@ EXPORT_SYMBOL(soc_camera_power_off); int soc_camera_power_init(struct device *dev, struct soc_camera_subdev_desc *ssdd) { /* Should not have any effect in synchronous case */ - return devm_regulator_bulk_get(dev, ssdd->num_regulators, - ssdd->regulators); + return devm_regulator_bulk_get(dev, ssdd->sd_pdata.num_regulators, + ssdd->sd_pdata.regulators); } EXPORT_SYMBOL(soc_camera_power_init); @@ -1346,8 +1356,8 @@ static int soc_camera_i2c_init(struct soc_camera_device *icd, * soc_camera_pdrv_probe(), make sure the subdevice driver doesn't try * to allocate them again. */ - ssdd->num_regulators = 0; - ssdd->regulators = NULL; + ssdd->sd_pdata.num_regulators = 0; + ssdd->sd_pdata.regulators = NULL; shd->board_info->platform_data = ssdd; snprintf(clk_name, sizeof(clk_name), "%d-%04x", @@ -2020,8 +2030,8 @@ static int soc_camera_pdrv_probe(struct platform_device *pdev) * that case regulators are attached to the I2C device and not to the * camera platform device. */ - ret = devm_regulator_bulk_get(&pdev->dev, ssdd->num_regulators, - ssdd->regulators); + ret = devm_regulator_bulk_get(&pdev->dev, ssdd->sd_pdata.num_regulators, + ssdd->sd_pdata.regulators); if (ret < 0) return ret; diff --git a/drivers/media/platform/ti-vpe/Makefile b/drivers/media/platform/ti-vpe/Makefile new file mode 100644 index 000000000000..cbf0a806ba1d --- /dev/null +++ b/drivers/media/platform/ti-vpe/Makefile @@ -0,0 +1,5 @@ +obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe.o + +ti-vpe-y := vpe.o vpdma.o + +ccflags-$(CONFIG_VIDEO_TI_VPE_DEBUG) += -DDEBUG diff --git a/drivers/media/platform/ti-vpe/vpdma.c b/drivers/media/platform/ti-vpe/vpdma.c new file mode 100644 index 000000000000..af0a5ffcaa98 --- /dev/null +++ b/drivers/media/platform/ti-vpe/vpdma.c @@ -0,0 +1,846 @@ +/* + * VPDMA helper library + * + * Copyright (c) 2013 Texas Instruments Inc. + * + * David Griego, <dagriego@biglakesoftware.com> + * Dale Farnsworth, <dale@farnsworth.org> + * Archit Taneja, <archit@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/err.h> +#include <linux/firmware.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include "vpdma.h" +#include "vpdma_priv.h" + +#define VPDMA_FIRMWARE "vpdma-1b8.bin" + +const struct vpdma_data_format vpdma_yuv_fmts[] = { + [VPDMA_DATA_FMT_Y444] = { + .data_type = DATA_TYPE_Y444, + .depth = 8, + }, + [VPDMA_DATA_FMT_Y422] = { + .data_type = DATA_TYPE_Y422, + .depth = 8, + }, + [VPDMA_DATA_FMT_Y420] = { + .data_type = DATA_TYPE_Y420, + .depth = 8, + }, + [VPDMA_DATA_FMT_C444] = { + .data_type = DATA_TYPE_C444, + .depth = 8, + }, + [VPDMA_DATA_FMT_C422] = { + .data_type = DATA_TYPE_C422, + .depth = 8, + }, + [VPDMA_DATA_FMT_C420] = { + .data_type = DATA_TYPE_C420, + .depth = 4, + }, + [VPDMA_DATA_FMT_YC422] = { + .data_type = DATA_TYPE_YC422, + .depth = 16, + }, + [VPDMA_DATA_FMT_YC444] = { + .data_type = DATA_TYPE_YC444, + .depth = 24, + }, + [VPDMA_DATA_FMT_CY422] = { + .data_type = DATA_TYPE_CY422, + .depth = 16, + }, +}; + +const struct vpdma_data_format vpdma_rgb_fmts[] = { + [VPDMA_DATA_FMT_RGB565] = { + .data_type = DATA_TYPE_RGB16_565, + .depth = 16, + }, + [VPDMA_DATA_FMT_ARGB16_1555] = { + .data_type = DATA_TYPE_ARGB_1555, + .depth = 16, + }, + [VPDMA_DATA_FMT_ARGB16] = { + .data_type = DATA_TYPE_ARGB_4444, + .depth = 16, + }, + [VPDMA_DATA_FMT_RGBA16_5551] = { + .data_type = DATA_TYPE_RGBA_5551, + .depth = 16, + }, + [VPDMA_DATA_FMT_RGBA16] = { + .data_type = DATA_TYPE_RGBA_4444, + .depth = 16, + }, + [VPDMA_DATA_FMT_ARGB24] = { + .data_type = DATA_TYPE_ARGB24_6666, + .depth = 24, + }, + [VPDMA_DATA_FMT_RGB24] = { + .data_type = DATA_TYPE_RGB24_888, + .depth = 24, + }, + [VPDMA_DATA_FMT_ARGB32] = { + .data_type = DATA_TYPE_ARGB32_8888, + .depth = 32, + }, + [VPDMA_DATA_FMT_RGBA24] = { + .data_type = DATA_TYPE_RGBA24_6666, + .depth = 24, + }, + [VPDMA_DATA_FMT_RGBA32] = { + .data_type = DATA_TYPE_RGBA32_8888, + .depth = 32, + }, + [VPDMA_DATA_FMT_BGR565] = { + .data_type = DATA_TYPE_BGR16_565, + .depth = 16, + }, + [VPDMA_DATA_FMT_ABGR16_1555] = { + .data_type = DATA_TYPE_ABGR_1555, + .depth = 16, + }, + [VPDMA_DATA_FMT_ABGR16] = { + .data_type = DATA_TYPE_ABGR_4444, + .depth = 16, + }, + [VPDMA_DATA_FMT_BGRA16_5551] = { + .data_type = DATA_TYPE_BGRA_5551, + .depth = 16, + }, + [VPDMA_DATA_FMT_BGRA16] = { + .data_type = DATA_TYPE_BGRA_4444, + .depth = 16, + }, + [VPDMA_DATA_FMT_ABGR24] = { + .data_type = DATA_TYPE_ABGR24_6666, + .depth = 24, + }, + [VPDMA_DATA_FMT_BGR24] = { + .data_type = DATA_TYPE_BGR24_888, + .depth = 24, + }, + [VPDMA_DATA_FMT_ABGR32] = { + .data_type = DATA_TYPE_ABGR32_8888, + .depth = 32, + }, + [VPDMA_DATA_FMT_BGRA24] = { + .data_type = DATA_TYPE_BGRA24_6666, + .depth = 24, + }, + [VPDMA_DATA_FMT_BGRA32] = { + .data_type = DATA_TYPE_BGRA32_8888, + .depth = 32, + }, +}; + +const struct vpdma_data_format vpdma_misc_fmts[] = { + [VPDMA_DATA_FMT_MV] = { + .data_type = DATA_TYPE_MV, + .depth = 4, + }, +}; + +struct vpdma_channel_info { + int num; /* VPDMA channel number */ + int cstat_offset; /* client CSTAT register offset */ +}; + +static const struct vpdma_channel_info chan_info[] = { + [VPE_CHAN_LUMA1_IN] = { + .num = VPE_CHAN_NUM_LUMA1_IN, + .cstat_offset = VPDMA_DEI_LUMA1_CSTAT, + }, + [VPE_CHAN_CHROMA1_IN] = { + .num = VPE_CHAN_NUM_CHROMA1_IN, + .cstat_offset = VPDMA_DEI_CHROMA1_CSTAT, + }, + [VPE_CHAN_LUMA2_IN] = { + .num = VPE_CHAN_NUM_LUMA2_IN, + .cstat_offset = VPDMA_DEI_LUMA2_CSTAT, + }, + [VPE_CHAN_CHROMA2_IN] = { + .num = VPE_CHAN_NUM_CHROMA2_IN, + .cstat_offset = VPDMA_DEI_CHROMA2_CSTAT, + }, + [VPE_CHAN_LUMA3_IN] = { + .num = VPE_CHAN_NUM_LUMA3_IN, + .cstat_offset = VPDMA_DEI_LUMA3_CSTAT, + }, + [VPE_CHAN_CHROMA3_IN] = { + .num = VPE_CHAN_NUM_CHROMA3_IN, + .cstat_offset = VPDMA_DEI_CHROMA3_CSTAT, + }, + [VPE_CHAN_MV_IN] = { + .num = VPE_CHAN_NUM_MV_IN, + .cstat_offset = VPDMA_DEI_MV_IN_CSTAT, + }, + [VPE_CHAN_MV_OUT] = { + .num = VPE_CHAN_NUM_MV_OUT, + .cstat_offset = VPDMA_DEI_MV_OUT_CSTAT, + }, + [VPE_CHAN_LUMA_OUT] = { + .num = VPE_CHAN_NUM_LUMA_OUT, + .cstat_offset = VPDMA_VIP_UP_Y_CSTAT, + }, + [VPE_CHAN_CHROMA_OUT] = { + .num = VPE_CHAN_NUM_CHROMA_OUT, + .cstat_offset = VPDMA_VIP_UP_UV_CSTAT, + }, + [VPE_CHAN_RGB_OUT] = { + .num = VPE_CHAN_NUM_RGB_OUT, + .cstat_offset = VPDMA_VIP_UP_Y_CSTAT, + }, +}; + +static u32 read_reg(struct vpdma_data *vpdma, int offset) +{ + return ioread32(vpdma->base + offset); +} + +static void write_reg(struct vpdma_data *vpdma, int offset, u32 value) +{ + iowrite32(value, vpdma->base + offset); +} + +static int read_field_reg(struct vpdma_data *vpdma, int offset, + u32 mask, int shift) +{ + return (read_reg(vpdma, offset) & (mask << shift)) >> shift; +} + +static void write_field_reg(struct vpdma_data *vpdma, int offset, u32 field, + u32 mask, int shift) +{ + u32 val = read_reg(vpdma, offset); + + val &= ~(mask << shift); + val |= (field & mask) << shift; + + write_reg(vpdma, offset, val); +} + +void vpdma_dump_regs(struct vpdma_data *vpdma) +{ + struct device *dev = &vpdma->pdev->dev; + +#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, read_reg(vpdma, VPDMA_##r)) + + dev_dbg(dev, "VPDMA Registers:\n"); + + DUMPREG(PID); + DUMPREG(LIST_ADDR); + DUMPREG(LIST_ATTR); + DUMPREG(LIST_STAT_SYNC); + DUMPREG(BG_RGB); + DUMPREG(BG_YUV); + DUMPREG(SETUP); + DUMPREG(MAX_SIZE1); + DUMPREG(MAX_SIZE2); + DUMPREG(MAX_SIZE3); + + /* + * dumping registers of only group0 and group3, because VPE channels + * lie within group0 and group3 registers + */ + DUMPREG(INT_CHAN_STAT(0)); + DUMPREG(INT_CHAN_MASK(0)); + DUMPREG(INT_CHAN_STAT(3)); + DUMPREG(INT_CHAN_MASK(3)); + DUMPREG(INT_CLIENT0_STAT); + DUMPREG(INT_CLIENT0_MASK); + DUMPREG(INT_CLIENT1_STAT); + DUMPREG(INT_CLIENT1_MASK); + DUMPREG(INT_LIST0_STAT); + DUMPREG(INT_LIST0_MASK); + + /* + * these are registers specific to VPE clients, we can make this + * function dump client registers specific to VPE or VIP based on + * who is using it + */ + DUMPREG(DEI_CHROMA1_CSTAT); + DUMPREG(DEI_LUMA1_CSTAT); + DUMPREG(DEI_CHROMA2_CSTAT); + DUMPREG(DEI_LUMA2_CSTAT); + DUMPREG(DEI_CHROMA3_CSTAT); + DUMPREG(DEI_LUMA3_CSTAT); + DUMPREG(DEI_MV_IN_CSTAT); + DUMPREG(DEI_MV_OUT_CSTAT); + DUMPREG(VIP_UP_Y_CSTAT); + DUMPREG(VIP_UP_UV_CSTAT); + DUMPREG(VPI_CTL_CSTAT); +} + +/* + * Allocate a DMA buffer + */ +int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size) +{ + buf->size = size; + buf->mapped = false; + buf->addr = kzalloc(size, GFP_KERNEL); + if (!buf->addr) + return -ENOMEM; + + WARN_ON((u32) buf->addr & VPDMA_DESC_ALIGN); + + return 0; +} + +void vpdma_free_desc_buf(struct vpdma_buf *buf) +{ + WARN_ON(buf->mapped); + kfree(buf->addr); + buf->addr = NULL; + buf->size = 0; +} + +/* + * map descriptor/payload DMA buffer, enabling DMA access + */ +int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf) +{ + struct device *dev = &vpdma->pdev->dev; + + WARN_ON(buf->mapped); + buf->dma_addr = dma_map_single(dev, buf->addr, buf->size, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, buf->dma_addr)) { + dev_err(dev, "failed to map buffer\n"); + return -EINVAL; + } + + buf->mapped = true; + + return 0; +} + +/* + * unmap descriptor/payload DMA buffer, disabling DMA access and + * allowing the main processor to acces the data + */ +void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf) +{ + struct device *dev = &vpdma->pdev->dev; + + if (buf->mapped) + dma_unmap_single(dev, buf->dma_addr, buf->size, DMA_TO_DEVICE); + + buf->mapped = false; +} + +/* + * create a descriptor list, the user of this list will append configuration, + * control and data descriptors to this list, this list will be submitted to + * VPDMA. VPDMA's list parser will go through each descriptor and perform the + * required DMA operations + */ +int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type) +{ + int r; + + r = vpdma_alloc_desc_buf(&list->buf, size); + if (r) + return r; + + list->next = list->buf.addr; + + list->type = type; + + return 0; +} + +/* + * once a descriptor list is parsed by VPDMA, we reset the list by emptying it, + * to allow new descriptors to be added to the list. + */ +void vpdma_reset_desc_list(struct vpdma_desc_list *list) +{ + list->next = list->buf.addr; +} + +/* + * free the buffer allocated fot the VPDMA descriptor list, this should be + * called when the user doesn't want to use VPDMA any more. + */ +void vpdma_free_desc_list(struct vpdma_desc_list *list) +{ + vpdma_free_desc_buf(&list->buf); + + list->next = NULL; +} + +static bool vpdma_list_busy(struct vpdma_data *vpdma, int list_num) +{ + return read_reg(vpdma, VPDMA_LIST_STAT_SYNC) & BIT(list_num + 16); +} + +/* + * submit a list of DMA descriptors to the VPE VPDMA, do not wait for completion + */ +int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list) +{ + /* we always use the first list */ + int list_num = 0; + int list_size; + + if (vpdma_list_busy(vpdma, list_num)) + return -EBUSY; + + /* 16-byte granularity */ + list_size = (list->next - list->buf.addr) >> 4; + + write_reg(vpdma, VPDMA_LIST_ADDR, (u32) list->buf.dma_addr); + + write_reg(vpdma, VPDMA_LIST_ATTR, + (list_num << VPDMA_LIST_NUM_SHFT) | + (list->type << VPDMA_LIST_TYPE_SHFT) | + list_size); + + return 0; +} + +static void dump_cfd(struct vpdma_cfd *cfd) +{ + int class; + + class = cfd_get_class(cfd); + + pr_debug("config descriptor of payload class: %s\n", + class == CFD_CLS_BLOCK ? "simple block" : + "address data block"); + + if (class == CFD_CLS_BLOCK) + pr_debug("word0: dst_addr_offset = 0x%08x\n", + cfd->dest_addr_offset); + + if (class == CFD_CLS_BLOCK) + pr_debug("word1: num_data_wrds = %d\n", cfd->block_len); + + pr_debug("word2: payload_addr = 0x%08x\n", cfd->payload_addr); + + pr_debug("word3: pkt_type = %d, direct = %d, class = %d, dest = %d, " + "payload_len = %d\n", cfd_get_pkt_type(cfd), + cfd_get_direct(cfd), class, cfd_get_dest(cfd), + cfd_get_payload_len(cfd)); +} + +/* + * append a configuration descriptor to the given descriptor list, where the + * payload is in the form of a simple data block specified in the descriptor + * header, this is used to upload scaler coefficients to the scaler module + */ +void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client, + struct vpdma_buf *blk, u32 dest_offset) +{ + struct vpdma_cfd *cfd; + int len = blk->size; + + WARN_ON(blk->dma_addr & VPDMA_DESC_ALIGN); + + cfd = list->next; + WARN_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size)); + + cfd->dest_addr_offset = dest_offset; + cfd->block_len = len; + cfd->payload_addr = (u32) blk->dma_addr; + cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_BLOCK, + client, len >> 4); + + list->next = cfd + 1; + + dump_cfd(cfd); +} + +/* + * append a configuration descriptor to the given descriptor list, where the + * payload is in the address data block format, this is used to a configure a + * discontiguous set of MMRs + */ +void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client, + struct vpdma_buf *adb) +{ + struct vpdma_cfd *cfd; + unsigned int len = adb->size; + + WARN_ON(len & VPDMA_ADB_SIZE_ALIGN); + WARN_ON(adb->dma_addr & VPDMA_DESC_ALIGN); + + cfd = list->next; + BUG_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size)); + + cfd->w0 = 0; + cfd->w1 = 0; + cfd->payload_addr = (u32) adb->dma_addr; + cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_ADB, + client, len >> 4); + + list->next = cfd + 1; + + dump_cfd(cfd); +}; + +/* + * control descriptor format change based on what type of control descriptor it + * is, we only use 'sync on channel' control descriptors for now, so assume it's + * that + */ +static void dump_ctd(struct vpdma_ctd *ctd) +{ + pr_debug("control descriptor\n"); + + pr_debug("word3: pkt_type = %d, source = %d, ctl_type = %d\n", + ctd_get_pkt_type(ctd), ctd_get_source(ctd), ctd_get_ctl(ctd)); +} + +/* + * append a 'sync on channel' type control descriptor to the given descriptor + * list, this descriptor stalls the VPDMA list till the time DMA is completed + * on the specified channel + */ +void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list, + enum vpdma_channel chan) +{ + struct vpdma_ctd *ctd; + + ctd = list->next; + WARN_ON((void *)(ctd + 1) > (list->buf.addr + list->buf.size)); + + ctd->w0 = 0; + ctd->w1 = 0; + ctd->w2 = 0; + ctd->type_source_ctl = ctd_type_source_ctl(chan_info[chan].num, + CTD_TYPE_SYNC_ON_CHANNEL); + + list->next = ctd + 1; + + dump_ctd(ctd); +} + +static void dump_dtd(struct vpdma_dtd *dtd) +{ + int dir, chan; + + dir = dtd_get_dir(dtd); + chan = dtd_get_chan(dtd); + + pr_debug("%s data transfer descriptor for channel %d\n", + dir == DTD_DIR_OUT ? "outbound" : "inbound", chan); + + pr_debug("word0: data_type = %d, notify = %d, field = %d, 1D = %d, " + "even_ln_skp = %d, odd_ln_skp = %d, line_stride = %d\n", + dtd_get_data_type(dtd), dtd_get_notify(dtd), dtd_get_field(dtd), + dtd_get_1d(dtd), dtd_get_even_line_skip(dtd), + dtd_get_odd_line_skip(dtd), dtd_get_line_stride(dtd)); + + if (dir == DTD_DIR_IN) + pr_debug("word1: line_length = %d, xfer_height = %d\n", + dtd_get_line_length(dtd), dtd_get_xfer_height(dtd)); + + pr_debug("word2: start_addr = 0x%08x\n", dtd->start_addr); + + pr_debug("word3: pkt_type = %d, mode = %d, dir = %d, chan = %d, " + "pri = %d, next_chan = %d\n", dtd_get_pkt_type(dtd), + dtd_get_mode(dtd), dir, chan, dtd_get_priority(dtd), + dtd_get_next_chan(dtd)); + + if (dir == DTD_DIR_IN) + pr_debug("word4: frame_width = %d, frame_height = %d\n", + dtd_get_frame_width(dtd), dtd_get_frame_height(dtd)); + else + pr_debug("word4: desc_write_addr = 0x%08x, write_desc = %d, " + "drp_data = %d, use_desc_reg = %d\n", + dtd_get_desc_write_addr(dtd), dtd_get_write_desc(dtd), + dtd_get_drop_data(dtd), dtd_get_use_desc(dtd)); + + if (dir == DTD_DIR_IN) + pr_debug("word5: hor_start = %d, ver_start = %d\n", + dtd_get_h_start(dtd), dtd_get_v_start(dtd)); + else + pr_debug("word5: max_width %d, max_height %d\n", + dtd_get_max_width(dtd), dtd_get_max_height(dtd)); + + pr_debug("word6: client specfic attr0 = 0x%08x\n", dtd->client_attr0); + pr_debug("word7: client specfic attr1 = 0x%08x\n", dtd->client_attr1); +} + +/* + * append an outbound data transfer descriptor to the given descriptor list, + * this sets up a 'client to memory' VPDMA transfer for the given VPDMA channel + */ +void vpdma_add_out_dtd(struct vpdma_desc_list *list, struct v4l2_rect *c_rect, + const struct vpdma_data_format *fmt, dma_addr_t dma_addr, + enum vpdma_channel chan, u32 flags) +{ + int priority = 0; + int field = 0; + int notify = 1; + int channel, next_chan; + int depth = fmt->depth; + int stride; + struct vpdma_dtd *dtd; + + channel = next_chan = chan_info[chan].num; + + if (fmt->data_type == DATA_TYPE_C420) + depth = 8; + + stride = (depth * c_rect->width) >> 3; + dma_addr += (c_rect->left * depth) >> 3; + + dtd = list->next; + WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size)); + + dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type, + notify, + field, + !!(flags & VPDMA_DATA_FRAME_1D), + !!(flags & VPDMA_DATA_EVEN_LINE_SKIP), + !!(flags & VPDMA_DATA_ODD_LINE_SKIP), + stride); + dtd->w1 = 0; + dtd->start_addr = (u32) dma_addr; + dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED), + DTD_DIR_OUT, channel, priority, next_chan); + dtd->desc_write_addr = dtd_desc_write_addr(0, 0, 0, 0); + dtd->max_width_height = dtd_max_width_height(MAX_OUT_WIDTH_1920, + MAX_OUT_HEIGHT_1080); + dtd->client_attr0 = 0; + dtd->client_attr1 = 0; + + list->next = dtd + 1; + + dump_dtd(dtd); +} + +/* + * append an inbound data transfer descriptor to the given descriptor list, + * this sets up a 'memory to client' VPDMA transfer for the given VPDMA channel + */ +void vpdma_add_in_dtd(struct vpdma_desc_list *list, int frame_width, + int frame_height, struct v4l2_rect *c_rect, + const struct vpdma_data_format *fmt, dma_addr_t dma_addr, + enum vpdma_channel chan, int field, u32 flags) +{ + int priority = 0; + int notify = 1; + int depth = fmt->depth; + int channel, next_chan; + int stride; + int height = c_rect->height; + struct vpdma_dtd *dtd; + + channel = next_chan = chan_info[chan].num; + + if (fmt->data_type == DATA_TYPE_C420) { + height >>= 1; + frame_height >>= 1; + depth = 8; + } + + stride = (depth * c_rect->width) >> 3; + dma_addr += (c_rect->left * depth) >> 3; + + dtd = list->next; + WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size)); + + dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type, + notify, + field, + !!(flags & VPDMA_DATA_FRAME_1D), + !!(flags & VPDMA_DATA_EVEN_LINE_SKIP), + !!(flags & VPDMA_DATA_ODD_LINE_SKIP), + stride); + + dtd->xfer_length_height = dtd_xfer_length_height(c_rect->width, height); + dtd->start_addr = (u32) dma_addr; + dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED), + DTD_DIR_IN, channel, priority, next_chan); + dtd->frame_width_height = dtd_frame_width_height(frame_width, + frame_height); + dtd->start_h_v = dtd_start_h_v(c_rect->left, c_rect->top); + dtd->client_attr0 = 0; + dtd->client_attr1 = 0; + + list->next = dtd + 1; + + dump_dtd(dtd); +} + +/* set or clear the mask for list complete interrupt */ +void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num, + bool enable) +{ + u32 val; + + val = read_reg(vpdma, VPDMA_INT_LIST0_MASK); + if (enable) + val |= (1 << (list_num * 2)); + else + val &= ~(1 << (list_num * 2)); + write_reg(vpdma, VPDMA_INT_LIST0_MASK, val); +} + +/* clear previosuly occured list intterupts in the LIST_STAT register */ +void vpdma_clear_list_stat(struct vpdma_data *vpdma) +{ + write_reg(vpdma, VPDMA_INT_LIST0_STAT, + read_reg(vpdma, VPDMA_INT_LIST0_STAT)); +} + +/* + * configures the output mode of the line buffer for the given client, the + * line buffer content can either be mirrored(each line repeated twice) or + * passed to the client as is + */ +void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode, + enum vpdma_channel chan) +{ + int client_cstat = chan_info[chan].cstat_offset; + + write_field_reg(vpdma, client_cstat, line_mode, + VPDMA_CSTAT_LINE_MODE_MASK, VPDMA_CSTAT_LINE_MODE_SHIFT); +} + +/* + * configures the event which should trigger VPDMA transfer for the given + * client + */ +void vpdma_set_frame_start_event(struct vpdma_data *vpdma, + enum vpdma_frame_start_event fs_event, + enum vpdma_channel chan) +{ + int client_cstat = chan_info[chan].cstat_offset; + + write_field_reg(vpdma, client_cstat, fs_event, + VPDMA_CSTAT_FRAME_START_MASK, VPDMA_CSTAT_FRAME_START_SHIFT); +} + +static void vpdma_firmware_cb(const struct firmware *f, void *context) +{ + struct vpdma_data *vpdma = context; + struct vpdma_buf fw_dma_buf; + int i, r; + + dev_dbg(&vpdma->pdev->dev, "firmware callback\n"); + + if (!f || !f->data) { + dev_err(&vpdma->pdev->dev, "couldn't get firmware\n"); + return; + } + + /* already initialized */ + if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK, + VPDMA_LIST_RDY_SHFT)) { + vpdma->ready = true; + return; + } + + r = vpdma_alloc_desc_buf(&fw_dma_buf, f->size); + if (r) { + dev_err(&vpdma->pdev->dev, + "failed to allocate dma buffer for firmware\n"); + goto rel_fw; + } + + memcpy(fw_dma_buf.addr, f->data, f->size); + + vpdma_map_desc_buf(vpdma, &fw_dma_buf); + + write_reg(vpdma, VPDMA_LIST_ADDR, (u32) fw_dma_buf.dma_addr); + + for (i = 0; i < 100; i++) { /* max 1 second */ + msleep_interruptible(10); + + if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK, + VPDMA_LIST_RDY_SHFT)) + break; + } + + if (i == 100) { + dev_err(&vpdma->pdev->dev, "firmware upload failed\n"); + goto free_buf; + } + + vpdma->ready = true; + +free_buf: + vpdma_unmap_desc_buf(vpdma, &fw_dma_buf); + + vpdma_free_desc_buf(&fw_dma_buf); +rel_fw: + release_firmware(f); +} + +static int vpdma_load_firmware(struct vpdma_data *vpdma) +{ + int r; + struct device *dev = &vpdma->pdev->dev; + + r = request_firmware_nowait(THIS_MODULE, 1, + (const char *) VPDMA_FIRMWARE, dev, GFP_KERNEL, vpdma, + vpdma_firmware_cb); + if (r) { + dev_err(dev, "firmware not available %s\n", VPDMA_FIRMWARE); + return r; + } else { + dev_info(dev, "loading firmware %s\n", VPDMA_FIRMWARE); + } + + return 0; +} + +struct vpdma_data *vpdma_create(struct platform_device *pdev) +{ + struct resource *res; + struct vpdma_data *vpdma; + int r; + + dev_dbg(&pdev->dev, "vpdma_create\n"); + + vpdma = devm_kzalloc(&pdev->dev, sizeof(*vpdma), GFP_KERNEL); + if (!vpdma) { + dev_err(&pdev->dev, "couldn't alloc vpdma_dev\n"); + return ERR_PTR(-ENOMEM); + } + + vpdma->pdev = pdev; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpdma"); + if (res == NULL) { + dev_err(&pdev->dev, "missing platform resources data\n"); + return ERR_PTR(-ENODEV); + } + + vpdma->base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!vpdma->base) { + dev_err(&pdev->dev, "failed to ioremap\n"); + return ERR_PTR(-ENOMEM); + } + + r = vpdma_load_firmware(vpdma); + if (r) { + pr_err("failed to load firmware %s\n", VPDMA_FIRMWARE); + return ERR_PTR(r); + } + + return vpdma; +} +MODULE_FIRMWARE(VPDMA_FIRMWARE); diff --git a/drivers/media/platform/ti-vpe/vpdma.h b/drivers/media/platform/ti-vpe/vpdma.h new file mode 100644 index 000000000000..eaa2a71a5db9 --- /dev/null +++ b/drivers/media/platform/ti-vpe/vpdma.h @@ -0,0 +1,203 @@ +/* + * Copyright (c) 2013 Texas Instruments Inc. + * + * David Griego, <dagriego@biglakesoftware.com> + * Dale Farnsworth, <dale@farnsworth.org> + * Archit Taneja, <archit@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#ifndef __TI_VPDMA_H_ +#define __TI_VPDMA_H_ + +/* + * A vpdma_buf tracks the size, DMA address and mapping status of each + * driver DMA area. + */ +struct vpdma_buf { + void *addr; + dma_addr_t dma_addr; + size_t size; + bool mapped; +}; + +struct vpdma_desc_list { + struct vpdma_buf buf; + void *next; + int type; +}; + +struct vpdma_data { + void __iomem *base; + + struct platform_device *pdev; + + /* tells whether vpdma firmware is loaded or not */ + bool ready; +}; + +struct vpdma_data_format { + int data_type; + u8 depth; +}; + +#define VPDMA_DESC_ALIGN 16 /* 16-byte descriptor alignment */ + +#define VPDMA_DTD_DESC_SIZE 32 /* 8 words */ +#define VPDMA_CFD_CTD_DESC_SIZE 16 /* 4 words */ + +#define VPDMA_LIST_TYPE_NORMAL 0 +#define VPDMA_LIST_TYPE_SELF_MODIFYING 1 +#define VPDMA_LIST_TYPE_DOORBELL 2 + +enum vpdma_yuv_formats { + VPDMA_DATA_FMT_Y444 = 0, + VPDMA_DATA_FMT_Y422, + VPDMA_DATA_FMT_Y420, + VPDMA_DATA_FMT_C444, + VPDMA_DATA_FMT_C422, + VPDMA_DATA_FMT_C420, + VPDMA_DATA_FMT_YC422, + VPDMA_DATA_FMT_YC444, + VPDMA_DATA_FMT_CY422, +}; + +enum vpdma_rgb_formats { + VPDMA_DATA_FMT_RGB565 = 0, + VPDMA_DATA_FMT_ARGB16_1555, + VPDMA_DATA_FMT_ARGB16, + VPDMA_DATA_FMT_RGBA16_5551, + VPDMA_DATA_FMT_RGBA16, + VPDMA_DATA_FMT_ARGB24, + VPDMA_DATA_FMT_RGB24, + VPDMA_DATA_FMT_ARGB32, + VPDMA_DATA_FMT_RGBA24, + VPDMA_DATA_FMT_RGBA32, + VPDMA_DATA_FMT_BGR565, + VPDMA_DATA_FMT_ABGR16_1555, + VPDMA_DATA_FMT_ABGR16, + VPDMA_DATA_FMT_BGRA16_5551, + VPDMA_DATA_FMT_BGRA16, + VPDMA_DATA_FMT_ABGR24, + VPDMA_DATA_FMT_BGR24, + VPDMA_DATA_FMT_ABGR32, + VPDMA_DATA_FMT_BGRA24, + VPDMA_DATA_FMT_BGRA32, +}; + +enum vpdma_misc_formats { + VPDMA_DATA_FMT_MV = 0, +}; + +extern const struct vpdma_data_format vpdma_yuv_fmts[]; +extern const struct vpdma_data_format vpdma_rgb_fmts[]; +extern const struct vpdma_data_format vpdma_misc_fmts[]; + +enum vpdma_frame_start_event { + VPDMA_FSEVENT_HDMI_FID = 0, + VPDMA_FSEVENT_DVO2_FID, + VPDMA_FSEVENT_HDCOMP_FID, + VPDMA_FSEVENT_SD_FID, + VPDMA_FSEVENT_LM_FID0, + VPDMA_FSEVENT_LM_FID1, + VPDMA_FSEVENT_LM_FID2, + VPDMA_FSEVENT_CHANNEL_ACTIVE, +}; + +/* + * VPDMA channel numbers + */ +enum vpdma_channel { + VPE_CHAN_LUMA1_IN, + VPE_CHAN_CHROMA1_IN, + VPE_CHAN_LUMA2_IN, + VPE_CHAN_CHROMA2_IN, + VPE_CHAN_LUMA3_IN, + VPE_CHAN_CHROMA3_IN, + VPE_CHAN_MV_IN, + VPE_CHAN_MV_OUT, + VPE_CHAN_LUMA_OUT, + VPE_CHAN_CHROMA_OUT, + VPE_CHAN_RGB_OUT, +}; + +/* flags for VPDMA data descriptors */ +#define VPDMA_DATA_ODD_LINE_SKIP (1 << 0) +#define VPDMA_DATA_EVEN_LINE_SKIP (1 << 1) +#define VPDMA_DATA_FRAME_1D (1 << 2) +#define VPDMA_DATA_MODE_TILED (1 << 3) + +/* + * client identifiers used for configuration descriptors + */ +#define CFD_MMR_CLIENT 0 +#define CFD_SC_CLIENT 4 + +/* Address data block header format */ +struct vpdma_adb_hdr { + u32 offset; + u32 nwords; + u32 reserved0; + u32 reserved1; +}; + +/* helpers for creating ADB headers for config descriptors MMRs as client */ +#define ADB_ADDR(dma_buf, str, fld) ((dma_buf)->addr + offsetof(str, fld)) +#define MMR_ADB_ADDR(buf, str, fld) ADB_ADDR(&(buf), struct str, fld) + +#define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a) \ + do { \ + struct vpdma_adb_hdr *h; \ + struct str *adb = NULL; \ + h = MMR_ADB_ADDR(buf, str, hdr); \ + h->offset = (offset_a); \ + h->nwords = sizeof(adb->regs) >> 2; \ + } while (0) + +/* vpdma descriptor buffer allocation and management */ +int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size); +void vpdma_free_desc_buf(struct vpdma_buf *buf); +int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf); +void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf); + +/* vpdma descriptor list funcs */ +int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type); +void vpdma_reset_desc_list(struct vpdma_desc_list *list); +void vpdma_free_desc_list(struct vpdma_desc_list *list); +int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list); + +/* helpers for creating vpdma descriptors */ +void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client, + struct vpdma_buf *blk, u32 dest_offset); +void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client, + struct vpdma_buf *adb); +void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list, + enum vpdma_channel chan); +void vpdma_add_out_dtd(struct vpdma_desc_list *list, struct v4l2_rect *c_rect, + const struct vpdma_data_format *fmt, dma_addr_t dma_addr, + enum vpdma_channel chan, u32 flags); +void vpdma_add_in_dtd(struct vpdma_desc_list *list, int frame_width, + int frame_height, struct v4l2_rect *c_rect, + const struct vpdma_data_format *fmt, dma_addr_t dma_addr, + enum vpdma_channel chan, int field, u32 flags); + +/* vpdma list interrupt management */ +void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num, + bool enable); +void vpdma_clear_list_stat(struct vpdma_data *vpdma); + +/* vpdma client configuration */ +void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode, + enum vpdma_channel chan); +void vpdma_set_frame_start_event(struct vpdma_data *vpdma, + enum vpdma_frame_start_event fs_event, enum vpdma_channel chan); + +void vpdma_dump_regs(struct vpdma_data *vpdma); + +/* initialize vpdma, passed with VPE's platform device pointer */ +struct vpdma_data *vpdma_create(struct platform_device *pdev); + +#endif diff --git a/drivers/media/platform/ti-vpe/vpdma_priv.h b/drivers/media/platform/ti-vpe/vpdma_priv.h new file mode 100644 index 000000000000..f0e9a8038c1b --- /dev/null +++ b/drivers/media/platform/ti-vpe/vpdma_priv.h @@ -0,0 +1,641 @@ +/* + * Copyright (c) 2013 Texas Instruments Inc. + * + * David Griego, <dagriego@biglakesoftware.com> + * Dale Farnsworth, <dale@farnsworth.org> + * Archit Taneja, <archit@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#ifndef _TI_VPDMA_PRIV_H_ +#define _TI_VPDMA_PRIV_H_ + +/* + * VPDMA Register offsets + */ + +/* Top level */ +#define VPDMA_PID 0x00 +#define VPDMA_LIST_ADDR 0x04 +#define VPDMA_LIST_ATTR 0x08 +#define VPDMA_LIST_STAT_SYNC 0x0c +#define VPDMA_BG_RGB 0x18 +#define VPDMA_BG_YUV 0x1c +#define VPDMA_SETUP 0x30 +#define VPDMA_MAX_SIZE1 0x34 +#define VPDMA_MAX_SIZE2 0x38 +#define VPDMA_MAX_SIZE3 0x3c + +/* Interrupts */ +#define VPDMA_INT_CHAN_STAT(grp) (0x40 + grp * 8) +#define VPDMA_INT_CHAN_MASK(grp) (VPDMA_INT_CHAN_STAT(grp) + 4) +#define VPDMA_INT_CLIENT0_STAT 0x78 +#define VPDMA_INT_CLIENT0_MASK 0x7c +#define VPDMA_INT_CLIENT1_STAT 0x80 +#define VPDMA_INT_CLIENT1_MASK 0x84 +#define VPDMA_INT_LIST0_STAT 0x88 +#define VPDMA_INT_LIST0_MASK 0x8c + +#define VPDMA_PERFMON(i) (0x200 + i * 4) + +/* VPE specific client registers */ +#define VPDMA_DEI_CHROMA1_CSTAT 0x0300 +#define VPDMA_DEI_LUMA1_CSTAT 0x0304 +#define VPDMA_DEI_LUMA2_CSTAT 0x0308 +#define VPDMA_DEI_CHROMA2_CSTAT 0x030c +#define VPDMA_DEI_LUMA3_CSTAT 0x0310 +#define VPDMA_DEI_CHROMA3_CSTAT 0x0314 +#define VPDMA_DEI_MV_IN_CSTAT 0x0330 +#define VPDMA_DEI_MV_OUT_CSTAT 0x033c +#define VPDMA_VIP_UP_Y_CSTAT 0x0390 +#define VPDMA_VIP_UP_UV_CSTAT 0x0394 +#define VPDMA_VPI_CTL_CSTAT 0x03d0 + +/* Reg field info for VPDMA_CLIENT_CSTAT registers */ +#define VPDMA_CSTAT_LINE_MODE_MASK 0x03 +#define VPDMA_CSTAT_LINE_MODE_SHIFT 8 +#define VPDMA_CSTAT_FRAME_START_MASK 0xf +#define VPDMA_CSTAT_FRAME_START_SHIFT 10 + +#define VPDMA_LIST_NUM_MASK 0x07 +#define VPDMA_LIST_NUM_SHFT 24 +#define VPDMA_LIST_STOP_SHFT 20 +#define VPDMA_LIST_RDY_MASK 0x01 +#define VPDMA_LIST_RDY_SHFT 19 +#define VPDMA_LIST_TYPE_MASK 0x03 +#define VPDMA_LIST_TYPE_SHFT 16 +#define VPDMA_LIST_SIZE_MASK 0xffff + +/* VPDMA data type values for data formats */ +#define DATA_TYPE_Y444 0x0 +#define DATA_TYPE_Y422 0x1 +#define DATA_TYPE_Y420 0x2 +#define DATA_TYPE_C444 0x4 +#define DATA_TYPE_C422 0x5 +#define DATA_TYPE_C420 0x6 +#define DATA_TYPE_YC422 0x7 +#define DATA_TYPE_YC444 0x8 +#define DATA_TYPE_CY422 0x23 + +#define DATA_TYPE_RGB16_565 0x0 +#define DATA_TYPE_ARGB_1555 0x1 +#define DATA_TYPE_ARGB_4444 0x2 +#define DATA_TYPE_RGBA_5551 0x3 +#define DATA_TYPE_RGBA_4444 0x4 +#define DATA_TYPE_ARGB24_6666 0x5 +#define DATA_TYPE_RGB24_888 0x6 +#define DATA_TYPE_ARGB32_8888 0x7 +#define DATA_TYPE_RGBA24_6666 0x8 +#define DATA_TYPE_RGBA32_8888 0x9 +#define DATA_TYPE_BGR16_565 0x10 +#define DATA_TYPE_ABGR_1555 0x11 +#define DATA_TYPE_ABGR_4444 0x12 +#define DATA_TYPE_BGRA_5551 0x13 +#define DATA_TYPE_BGRA_4444 0x14 +#define DATA_TYPE_ABGR24_6666 0x15 +#define DATA_TYPE_BGR24_888 0x16 +#define DATA_TYPE_ABGR32_8888 0x17 +#define DATA_TYPE_BGRA24_6666 0x18 +#define DATA_TYPE_BGRA32_8888 0x19 + +#define DATA_TYPE_MV 0x3 + +/* VPDMA channel numbers(only VPE channels for now) */ +#define VPE_CHAN_NUM_LUMA1_IN 0 +#define VPE_CHAN_NUM_CHROMA1_IN 1 +#define VPE_CHAN_NUM_LUMA2_IN 2 +#define VPE_CHAN_NUM_CHROMA2_IN 3 +#define VPE_CHAN_NUM_LUMA3_IN 4 +#define VPE_CHAN_NUM_CHROMA3_IN 5 +#define VPE_CHAN_NUM_MV_IN 12 +#define VPE_CHAN_NUM_MV_OUT 15 +#define VPE_CHAN_NUM_LUMA_OUT 102 +#define VPE_CHAN_NUM_CHROMA_OUT 103 +#define VPE_CHAN_NUM_RGB_OUT 106 + +/* + * a VPDMA address data block payload for a configuration descriptor needs to + * have each sub block length as a multiple of 16 bytes. Therefore, the overall + * size of the payload also needs to be a multiple of 16 bytes. The sub block + * lengths should be ensured to be aligned by the VPDMA user. + */ +#define VPDMA_ADB_SIZE_ALIGN 0x0f + +/* + * data transfer descriptor + */ +struct vpdma_dtd { + u32 type_ctl_stride; + union { + u32 xfer_length_height; + u32 w1; + }; + dma_addr_t start_addr; + u32 pkt_ctl; + union { + u32 frame_width_height; /* inbound */ + dma_addr_t desc_write_addr; /* outbound */ + }; + union { + u32 start_h_v; /* inbound */ + u32 max_width_height; /* outbound */ + }; + u32 client_attr0; + u32 client_attr1; +}; + +/* Data Transfer Descriptor specifics */ +#define DTD_NO_NOTIFY 0 +#define DTD_NOTIFY 1 + +#define DTD_PKT_TYPE 0xa +#define DTD_DIR_IN 0 +#define DTD_DIR_OUT 1 + +/* type_ctl_stride */ +#define DTD_DATA_TYPE_MASK 0x3f +#define DTD_DATA_TYPE_SHFT 26 +#define DTD_NOTIFY_MASK 0x01 +#define DTD_NOTIFY_SHFT 25 +#define DTD_FIELD_MASK 0x01 +#define DTD_FIELD_SHFT 24 +#define DTD_1D_MASK 0x01 +#define DTD_1D_SHFT 23 +#define DTD_EVEN_LINE_SKIP_MASK 0x01 +#define DTD_EVEN_LINE_SKIP_SHFT 20 +#define DTD_ODD_LINE_SKIP_MASK 0x01 +#define DTD_ODD_LINE_SKIP_SHFT 16 +#define DTD_LINE_STRIDE_MASK 0xffff +#define DTD_LINE_STRIDE_SHFT 0 + +/* xfer_length_height */ +#define DTD_LINE_LENGTH_MASK 0xffff +#define DTD_LINE_LENGTH_SHFT 16 +#define DTD_XFER_HEIGHT_MASK 0xffff +#define DTD_XFER_HEIGHT_SHFT 0 + +/* pkt_ctl */ +#define DTD_PKT_TYPE_MASK 0x1f +#define DTD_PKT_TYPE_SHFT 27 +#define DTD_MODE_MASK 0x01 +#define DTD_MODE_SHFT 26 +#define DTD_DIR_MASK 0x01 +#define DTD_DIR_SHFT 25 +#define DTD_CHAN_MASK 0x01ff +#define DTD_CHAN_SHFT 16 +#define DTD_PRI_MASK 0x0f +#define DTD_PRI_SHFT 9 +#define DTD_NEXT_CHAN_MASK 0x01ff +#define DTD_NEXT_CHAN_SHFT 0 + +/* frame_width_height */ +#define DTD_FRAME_WIDTH_MASK 0xffff +#define DTD_FRAME_WIDTH_SHFT 16 +#define DTD_FRAME_HEIGHT_MASK 0xffff +#define DTD_FRAME_HEIGHT_SHFT 0 + +/* start_h_v */ +#define DTD_H_START_MASK 0xffff +#define DTD_H_START_SHFT 16 +#define DTD_V_START_MASK 0xffff +#define DTD_V_START_SHFT 0 + +#define DTD_DESC_START_SHIFT 5 +#define DTD_WRITE_DESC_MASK 0x01 +#define DTD_WRITE_DESC_SHIFT 2 +#define DTD_DROP_DATA_MASK 0x01 +#define DTD_DROP_DATA_SHIFT 1 +#define DTD_USE_DESC_MASK 0x01 +#define DTD_USE_DESC_SHIFT 0 + +/* max_width_height */ +#define DTD_MAX_WIDTH_MASK 0x07 +#define DTD_MAX_WIDTH_SHFT 4 +#define DTD_MAX_HEIGHT_MASK 0x07 +#define DTD_MAX_HEIGHT_SHFT 0 + +/* max width configurations */ + /* unlimited width */ +#define MAX_OUT_WIDTH_UNLIMITED 0 +/* as specified in max_size1 reg */ +#define MAX_OUT_WIDTH_REG1 1 +/* as specified in max_size2 reg */ +#define MAX_OUT_WIDTH_REG2 2 +/* as specified in max_size3 reg */ +#define MAX_OUT_WIDTH_REG3 3 +/* maximum of 352 pixels as width */ +#define MAX_OUT_WIDTH_352 4 +/* maximum of 768 pixels as width */ +#define MAX_OUT_WIDTH_768 5 +/* maximum of 1280 pixels width */ +#define MAX_OUT_WIDTH_1280 6 +/* maximum of 1920 pixels as width */ +#define MAX_OUT_WIDTH_1920 7 + +/* max height configurations */ + /* unlimited height */ +#define MAX_OUT_HEIGHT_UNLIMITED 0 +/* as specified in max_size1 reg */ +#define MAX_OUT_HEIGHT_REG1 1 +/* as specified in max_size2 reg */ +#define MAX_OUT_HEIGHT_REG2 2 +/* as specified in max_size3 reg */ +#define MAX_OUT_HEIGHT_REG3 3 +/* maximum of 288 lines as height */ +#define MAX_OUT_HEIGHT_288 4 +/* maximum of 576 lines as height */ +#define MAX_OUT_HEIGHT_576 5 +/* maximum of 720 lines as height */ +#define MAX_OUT_HEIGHT_720 6 +/* maximum of 1080 lines as height */ +#define MAX_OUT_HEIGHT_1080 7 + +static inline u32 dtd_type_ctl_stride(int type, bool notify, int field, + bool one_d, bool even_line_skip, bool odd_line_skip, + int line_stride) +{ + return (type << DTD_DATA_TYPE_SHFT) | (notify << DTD_NOTIFY_SHFT) | + (field << DTD_FIELD_SHFT) | (one_d << DTD_1D_SHFT) | + (even_line_skip << DTD_EVEN_LINE_SKIP_SHFT) | + (odd_line_skip << DTD_ODD_LINE_SKIP_SHFT) | + line_stride; +} + +static inline u32 dtd_xfer_length_height(int line_length, int xfer_height) +{ + return (line_length << DTD_LINE_LENGTH_SHFT) | xfer_height; +} + +static inline u32 dtd_pkt_ctl(bool mode, bool dir, int chan, int pri, + int next_chan) +{ + return (DTD_PKT_TYPE << DTD_PKT_TYPE_SHFT) | (mode << DTD_MODE_SHFT) | + (dir << DTD_DIR_SHFT) | (chan << DTD_CHAN_SHFT) | + (pri << DTD_PRI_SHFT) | next_chan; +} + +static inline u32 dtd_frame_width_height(int width, int height) +{ + return (width << DTD_FRAME_WIDTH_SHFT) | height; +} + +static inline u32 dtd_desc_write_addr(unsigned int addr, bool write_desc, + bool drop_data, bool use_desc) +{ + return (addr << DTD_DESC_START_SHIFT) | + (write_desc << DTD_WRITE_DESC_SHIFT) | + (drop_data << DTD_DROP_DATA_SHIFT) | + use_desc; +} + +static inline u32 dtd_start_h_v(int h_start, int v_start) +{ + return (h_start << DTD_H_START_SHFT) | v_start; +} + +static inline u32 dtd_max_width_height(int max_width, int max_height) +{ + return (max_width << DTD_MAX_WIDTH_SHFT) | max_height; +} + +static inline int dtd_get_data_type(struct vpdma_dtd *dtd) +{ + return dtd->type_ctl_stride >> DTD_DATA_TYPE_SHFT; +} + +static inline bool dtd_get_notify(struct vpdma_dtd *dtd) +{ + return (dtd->type_ctl_stride >> DTD_NOTIFY_SHFT) & DTD_NOTIFY_MASK; +} + +static inline int dtd_get_field(struct vpdma_dtd *dtd) +{ + return (dtd->type_ctl_stride >> DTD_FIELD_SHFT) & DTD_FIELD_MASK; +} + +static inline bool dtd_get_1d(struct vpdma_dtd *dtd) +{ + return (dtd->type_ctl_stride >> DTD_1D_SHFT) & DTD_1D_MASK; +} + +static inline bool dtd_get_even_line_skip(struct vpdma_dtd *dtd) +{ + return (dtd->type_ctl_stride >> DTD_EVEN_LINE_SKIP_SHFT) + & DTD_EVEN_LINE_SKIP_MASK; +} + +static inline bool dtd_get_odd_line_skip(struct vpdma_dtd *dtd) +{ + return (dtd->type_ctl_stride >> DTD_ODD_LINE_SKIP_SHFT) + & DTD_ODD_LINE_SKIP_MASK; +} + +static inline int dtd_get_line_stride(struct vpdma_dtd *dtd) +{ + return dtd->type_ctl_stride & DTD_LINE_STRIDE_MASK; +} + +static inline int dtd_get_line_length(struct vpdma_dtd *dtd) +{ + return dtd->xfer_length_height >> DTD_LINE_LENGTH_SHFT; +} + +static inline int dtd_get_xfer_height(struct vpdma_dtd *dtd) +{ + return dtd->xfer_length_height & DTD_XFER_HEIGHT_MASK; +} + +static inline int dtd_get_pkt_type(struct vpdma_dtd *dtd) +{ + return dtd->pkt_ctl >> DTD_PKT_TYPE_SHFT; +} + +static inline bool dtd_get_mode(struct vpdma_dtd *dtd) +{ + return (dtd->pkt_ctl >> DTD_MODE_SHFT) & DTD_MODE_MASK; +} + +static inline bool dtd_get_dir(struct vpdma_dtd *dtd) +{ + return (dtd->pkt_ctl >> DTD_DIR_SHFT) & DTD_DIR_MASK; +} + +static inline int dtd_get_chan(struct vpdma_dtd *dtd) +{ + return (dtd->pkt_ctl >> DTD_CHAN_SHFT) & DTD_CHAN_MASK; +} + +static inline int dtd_get_priority(struct vpdma_dtd *dtd) +{ + return (dtd->pkt_ctl >> DTD_PRI_SHFT) & DTD_PRI_MASK; +} + +static inline int dtd_get_next_chan(struct vpdma_dtd *dtd) +{ + return (dtd->pkt_ctl >> DTD_NEXT_CHAN_SHFT) & DTD_NEXT_CHAN_MASK; +} + +static inline int dtd_get_frame_width(struct vpdma_dtd *dtd) +{ + return dtd->frame_width_height >> DTD_FRAME_WIDTH_SHFT; +} + +static inline int dtd_get_frame_height(struct vpdma_dtd *dtd) +{ + return dtd->frame_width_height & DTD_FRAME_HEIGHT_MASK; +} + +static inline int dtd_get_desc_write_addr(struct vpdma_dtd *dtd) +{ + return dtd->desc_write_addr >> DTD_DESC_START_SHIFT; +} + +static inline bool dtd_get_write_desc(struct vpdma_dtd *dtd) +{ + return (dtd->desc_write_addr >> DTD_WRITE_DESC_SHIFT) & + DTD_WRITE_DESC_MASK; +} + +static inline bool dtd_get_drop_data(struct vpdma_dtd *dtd) +{ + return (dtd->desc_write_addr >> DTD_DROP_DATA_SHIFT) & + DTD_DROP_DATA_MASK; +} + +static inline bool dtd_get_use_desc(struct vpdma_dtd *dtd) +{ + return dtd->desc_write_addr & DTD_USE_DESC_MASK; +} + +static inline int dtd_get_h_start(struct vpdma_dtd *dtd) +{ + return dtd->start_h_v >> DTD_H_START_SHFT; +} + +static inline int dtd_get_v_start(struct vpdma_dtd *dtd) +{ + return dtd->start_h_v & DTD_V_START_MASK; +} + +static inline int dtd_get_max_width(struct vpdma_dtd *dtd) +{ + return (dtd->max_width_height >> DTD_MAX_WIDTH_SHFT) & + DTD_MAX_WIDTH_MASK; +} + +static inline int dtd_get_max_height(struct vpdma_dtd *dtd) +{ + return (dtd->max_width_height >> DTD_MAX_HEIGHT_SHFT) & + DTD_MAX_HEIGHT_MASK; +} + +/* + * configuration descriptor + */ +struct vpdma_cfd { + union { + u32 dest_addr_offset; + u32 w0; + }; + union { + u32 block_len; /* in words */ + u32 w1; + }; + u32 payload_addr; + u32 ctl_payload_len; /* in words */ +}; + +/* Configuration descriptor specifics */ + +#define CFD_PKT_TYPE 0xb + +#define CFD_DIRECT 1 +#define CFD_INDIRECT 0 +#define CFD_CLS_ADB 0 +#define CFD_CLS_BLOCK 1 + +/* block_len */ +#define CFD__BLOCK_LEN_MASK 0xffff +#define CFD__BLOCK_LEN_SHFT 0 + +/* ctl_payload_len */ +#define CFD_PKT_TYPE_MASK 0x1f +#define CFD_PKT_TYPE_SHFT 27 +#define CFD_DIRECT_MASK 0x01 +#define CFD_DIRECT_SHFT 26 +#define CFD_CLASS_MASK 0x03 +#define CFD_CLASS_SHFT 24 +#define CFD_DEST_MASK 0xff +#define CFD_DEST_SHFT 16 +#define CFD_PAYLOAD_LEN_MASK 0xffff +#define CFD_PAYLOAD_LEN_SHFT 0 + +static inline u32 cfd_pkt_payload_len(bool direct, int cls, int dest, + int payload_len) +{ + return (CFD_PKT_TYPE << CFD_PKT_TYPE_SHFT) | + (direct << CFD_DIRECT_SHFT) | + (cls << CFD_CLASS_SHFT) | + (dest << CFD_DEST_SHFT) | + payload_len; +} + +static inline int cfd_get_pkt_type(struct vpdma_cfd *cfd) +{ + return cfd->ctl_payload_len >> CFD_PKT_TYPE_SHFT; +} + +static inline bool cfd_get_direct(struct vpdma_cfd *cfd) +{ + return (cfd->ctl_payload_len >> CFD_DIRECT_SHFT) & CFD_DIRECT_MASK; +} + +static inline bool cfd_get_class(struct vpdma_cfd *cfd) +{ + return (cfd->ctl_payload_len >> CFD_CLASS_SHFT) & CFD_CLASS_MASK; +} + +static inline int cfd_get_dest(struct vpdma_cfd *cfd) +{ + return (cfd->ctl_payload_len >> CFD_DEST_SHFT) & CFD_DEST_MASK; +} + +static inline int cfd_get_payload_len(struct vpdma_cfd *cfd) +{ + return cfd->ctl_payload_len & CFD_PAYLOAD_LEN_MASK; +} + +/* + * control descriptor + */ +struct vpdma_ctd { + union { + u32 timer_value; + u32 list_addr; + u32 w0; + }; + union { + u32 pixel_line_count; + u32 list_size; + u32 w1; + }; + union { + u32 event; + u32 fid_ctl; + u32 w2; + }; + u32 type_source_ctl; +}; + +/* control descriptor types */ +#define CTD_TYPE_SYNC_ON_CLIENT 0 +#define CTD_TYPE_SYNC_ON_LIST 1 +#define CTD_TYPE_SYNC_ON_EXT 2 +#define CTD_TYPE_SYNC_ON_LM_TIMER 3 +#define CTD_TYPE_SYNC_ON_CHANNEL 4 +#define CTD_TYPE_CHNG_CLIENT_IRQ 5 +#define CTD_TYPE_SEND_IRQ 6 +#define CTD_TYPE_RELOAD_LIST 7 +#define CTD_TYPE_ABORT_CHANNEL 8 + +#define CTD_PKT_TYPE 0xc + +/* timer_value */ +#define CTD_TIMER_VALUE_MASK 0xffff +#define CTD_TIMER_VALUE_SHFT 0 + +/* pixel_line_count */ +#define CTD_PIXEL_COUNT_MASK 0xffff +#define CTD_PIXEL_COUNT_SHFT 16 +#define CTD_LINE_COUNT_MASK 0xffff +#define CTD_LINE_COUNT_SHFT 0 + +/* list_size */ +#define CTD_LIST_SIZE_MASK 0xffff +#define CTD_LIST_SIZE_SHFT 0 + +/* event */ +#define CTD_EVENT_MASK 0x0f +#define CTD_EVENT_SHFT 0 + +/* fid_ctl */ +#define CTD_FID2_MASK 0x03 +#define CTD_FID2_SHFT 4 +#define CTD_FID1_MASK 0x03 +#define CTD_FID1_SHFT 2 +#define CTD_FID0_MASK 0x03 +#define CTD_FID0_SHFT 0 + +/* type_source_ctl */ +#define CTD_PKT_TYPE_MASK 0x1f +#define CTD_PKT_TYPE_SHFT 27 +#define CTD_SOURCE_MASK 0xff +#define CTD_SOURCE_SHFT 16 +#define CTD_CONTROL_MASK 0x0f +#define CTD_CONTROL_SHFT 0 + +static inline u32 ctd_pixel_line_count(int pixel_count, int line_count) +{ + return (pixel_count << CTD_PIXEL_COUNT_SHFT) | line_count; +} + +static inline u32 ctd_set_fid_ctl(int fid0, int fid1, int fid2) +{ + return (fid2 << CTD_FID2_SHFT) | (fid1 << CTD_FID1_SHFT) | fid0; +} + +static inline u32 ctd_type_source_ctl(int source, int control) +{ + return (CTD_PKT_TYPE << CTD_PKT_TYPE_SHFT) | + (source << CTD_SOURCE_SHFT) | control; +} + +static inline u32 ctd_get_pixel_count(struct vpdma_ctd *ctd) +{ + return ctd->pixel_line_count >> CTD_PIXEL_COUNT_SHFT; +} + +static inline int ctd_get_line_count(struct vpdma_ctd *ctd) +{ + return ctd->pixel_line_count & CTD_LINE_COUNT_MASK; +} + +static inline int ctd_get_event(struct vpdma_ctd *ctd) +{ + return ctd->event & CTD_EVENT_MASK; +} + +static inline int ctd_get_fid2_ctl(struct vpdma_ctd *ctd) +{ + return (ctd->fid_ctl >> CTD_FID2_SHFT) & CTD_FID2_MASK; +} + +static inline int ctd_get_fid1_ctl(struct vpdma_ctd *ctd) +{ + return (ctd->fid_ctl >> CTD_FID1_SHFT) & CTD_FID1_MASK; +} + +static inline int ctd_get_fid0_ctl(struct vpdma_ctd *ctd) +{ + return ctd->fid_ctl & CTD_FID2_MASK; +} + +static inline int ctd_get_pkt_type(struct vpdma_ctd *ctd) +{ + return ctd->type_source_ctl >> CTD_PKT_TYPE_SHFT; +} + +static inline int ctd_get_source(struct vpdma_ctd *ctd) +{ + return (ctd->type_source_ctl >> CTD_SOURCE_SHFT) & CTD_SOURCE_MASK; +} + +static inline int ctd_get_ctl(struct vpdma_ctd *ctd) +{ + return ctd->type_source_ctl & CTD_CONTROL_MASK; +} + +#endif diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c new file mode 100644 index 000000000000..4e58069e24ff --- /dev/null +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -0,0 +1,2099 @@ +/* + * TI VPE mem2mem driver, based on the virtual v4l2-mem2mem example driver + * + * Copyright (c) 2013 Texas Instruments Inc. + * David Griego, <dagriego@biglakesoftware.com> + * Dale Farnsworth, <dale@farnsworth.org> + * Archit Taneja, <archit@ti.com> + * + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. + * Pawel Osciak, <pawel@osciak.com> + * Marek Szyprowski, <m.szyprowski@samsung.com> + * + * Based on the virtual v4l2-mem2mem example device + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation + */ + +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/err.h> +#include <linux/fs.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioctl.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-event.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "vpdma.h" +#include "vpe_regs.h" + +#define VPE_MODULE_NAME "vpe" + +/* minimum and maximum frame sizes */ +#define MIN_W 128 +#define MIN_H 128 +#define MAX_W 1920 +#define MAX_H 1080 + +/* required alignments */ +#define S_ALIGN 0 /* multiple of 1 */ +#define H_ALIGN 1 /* multiple of 2 */ +#define W_ALIGN 1 /* multiple of 2 */ + +/* multiple of 128 bits, line stride, 16 bytes */ +#define L_ALIGN 4 + +/* flags that indicate a format can be used for capture/output */ +#define VPE_FMT_TYPE_CAPTURE (1 << 0) +#define VPE_FMT_TYPE_OUTPUT (1 << 1) + +/* used as plane indices */ +#define VPE_MAX_PLANES 2 +#define VPE_LUMA 0 +#define VPE_CHROMA 1 + +/* per m2m context info */ +#define VPE_MAX_SRC_BUFS 3 /* need 3 src fields to de-interlace */ + +#define VPE_DEF_BUFS_PER_JOB 1 /* default one buffer per batch job */ + +/* + * each VPE context can need up to 3 config desciptors, 7 input descriptors, + * 3 output descriptors, and 10 control descriptors + */ +#define VPE_DESC_LIST_SIZE (10 * VPDMA_DTD_DESC_SIZE + \ + 13 * VPDMA_CFD_CTD_DESC_SIZE) + +#define vpe_dbg(vpedev, fmt, arg...) \ + dev_dbg((vpedev)->v4l2_dev.dev, fmt, ##arg) +#define vpe_err(vpedev, fmt, arg...) \ + dev_err((vpedev)->v4l2_dev.dev, fmt, ##arg) + +struct vpe_us_coeffs { + unsigned short anchor_fid0_c0; + unsigned short anchor_fid0_c1; + unsigned short anchor_fid0_c2; + unsigned short anchor_fid0_c3; + unsigned short interp_fid0_c0; + unsigned short interp_fid0_c1; + unsigned short interp_fid0_c2; + unsigned short interp_fid0_c3; + unsigned short anchor_fid1_c0; + unsigned short anchor_fid1_c1; + unsigned short anchor_fid1_c2; + unsigned short anchor_fid1_c3; + unsigned short interp_fid1_c0; + unsigned short interp_fid1_c1; + unsigned short interp_fid1_c2; + unsigned short interp_fid1_c3; +}; + +/* + * Default upsampler coefficients + */ +static const struct vpe_us_coeffs us_coeffs[] = { + { + /* Coefficients for progressive input */ + 0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8, + 0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8, + }, + { + /* Coefficients for Top Field Interlaced input */ + 0x0051, 0x03D5, 0x3FE3, 0x3FF7, 0x3FB5, 0x02E9, 0x018F, 0x3FD3, + /* Coefficients for Bottom Field Interlaced input */ + 0x016B, 0x0247, 0x00B1, 0x3F9D, 0x3FCF, 0x03DB, 0x005D, 0x3FF9, + }, +}; + +/* + * the following registers are for configuring some of the parameters of the + * motion and edge detection blocks inside DEI, these generally remain the same, + * these could be passed later via userspace if some one needs to tweak these. + */ +struct vpe_dei_regs { + unsigned long mdt_spacial_freq_thr_reg; /* VPE_DEI_REG2 */ + unsigned long edi_config_reg; /* VPE_DEI_REG3 */ + unsigned long edi_lut_reg0; /* VPE_DEI_REG4 */ + unsigned long edi_lut_reg1; /* VPE_DEI_REG5 */ + unsigned long edi_lut_reg2; /* VPE_DEI_REG6 */ + unsigned long edi_lut_reg3; /* VPE_DEI_REG7 */ +}; + +/* + * default expert DEI register values, unlikely to be modified. + */ +static const struct vpe_dei_regs dei_regs = { + 0x020C0804u, + 0x0118100Fu, + 0x08040200u, + 0x1010100Cu, + 0x10101010u, + 0x10101010u, +}; + +/* + * The port_data structure contains per-port data. + */ +struct vpe_port_data { + enum vpdma_channel channel; /* VPDMA channel */ + u8 vb_index; /* input frame f, f-1, f-2 index */ + u8 vb_part; /* plane index for co-panar formats */ +}; + +/* + * Define indices into the port_data tables + */ +#define VPE_PORT_LUMA1_IN 0 +#define VPE_PORT_CHROMA1_IN 1 +#define VPE_PORT_LUMA2_IN 2 +#define VPE_PORT_CHROMA2_IN 3 +#define VPE_PORT_LUMA3_IN 4 +#define VPE_PORT_CHROMA3_IN 5 +#define VPE_PORT_MV_IN 6 +#define VPE_PORT_MV_OUT 7 +#define VPE_PORT_LUMA_OUT 8 +#define VPE_PORT_CHROMA_OUT 9 +#define VPE_PORT_RGB_OUT 10 + +static const struct vpe_port_data port_data[11] = { + [VPE_PORT_LUMA1_IN] = { + .channel = VPE_CHAN_LUMA1_IN, + .vb_index = 0, + .vb_part = VPE_LUMA, + }, + [VPE_PORT_CHROMA1_IN] = { + .channel = VPE_CHAN_CHROMA1_IN, + .vb_index = 0, + .vb_part = VPE_CHROMA, + }, + [VPE_PORT_LUMA2_IN] = { + .channel = VPE_CHAN_LUMA2_IN, + .vb_index = 1, + .vb_part = VPE_LUMA, + }, + [VPE_PORT_CHROMA2_IN] = { + .channel = VPE_CHAN_CHROMA2_IN, + .vb_index = 1, + .vb_part = VPE_CHROMA, + }, + [VPE_PORT_LUMA3_IN] = { + .channel = VPE_CHAN_LUMA3_IN, + .vb_index = 2, + .vb_part = VPE_LUMA, + }, + [VPE_PORT_CHROMA3_IN] = { + .channel = VPE_CHAN_CHROMA3_IN, + .vb_index = 2, + .vb_part = VPE_CHROMA, + }, + [VPE_PORT_MV_IN] = { + .channel = VPE_CHAN_MV_IN, + }, + [VPE_PORT_MV_OUT] = { + .channel = VPE_CHAN_MV_OUT, + }, + [VPE_PORT_LUMA_OUT] = { + .channel = VPE_CHAN_LUMA_OUT, + .vb_part = VPE_LUMA, + }, + [VPE_PORT_CHROMA_OUT] = { + .channel = VPE_CHAN_CHROMA_OUT, + .vb_part = VPE_CHROMA, + }, + [VPE_PORT_RGB_OUT] = { + .channel = VPE_CHAN_RGB_OUT, + .vb_part = VPE_LUMA, + }, +}; + + +/* driver info for each of the supported video formats */ +struct vpe_fmt { + char *name; /* human-readable name */ + u32 fourcc; /* standard format identifier */ + u8 types; /* CAPTURE and/or OUTPUT */ + u8 coplanar; /* set for unpacked Luma and Chroma */ + /* vpdma format info for each plane */ + struct vpdma_data_format const *vpdma_fmt[VPE_MAX_PLANES]; +}; + +static struct vpe_fmt vpe_formats[] = { + { + .name = "YUV 422 co-planar", + .fourcc = V4L2_PIX_FMT_NV16, + .types = VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT, + .coplanar = 1, + .vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_Y444], + &vpdma_yuv_fmts[VPDMA_DATA_FMT_C444], + }, + }, + { + .name = "YUV 420 co-planar", + .fourcc = V4L2_PIX_FMT_NV12, + .types = VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT, + .coplanar = 1, + .vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_Y420], + &vpdma_yuv_fmts[VPDMA_DATA_FMT_C420], + }, + }, + { + .name = "YUYV 422 packed", + .fourcc = V4L2_PIX_FMT_YUYV, + .types = VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT, + .coplanar = 0, + .vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_YC422], + }, + }, + { + .name = "UYVY 422 packed", + .fourcc = V4L2_PIX_FMT_UYVY, + .types = VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT, + .coplanar = 0, + .vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_CY422], + }, + }, +}; + +/* + * per-queue, driver-specific private data. + * there is one source queue and one destination queue for each m2m context. + */ +struct vpe_q_data { + unsigned int width; /* frame width */ + unsigned int height; /* frame height */ + unsigned int bytesperline[VPE_MAX_PLANES]; /* bytes per line in memory */ + enum v4l2_colorspace colorspace; + enum v4l2_field field; /* supported field value */ + unsigned int flags; + unsigned int sizeimage[VPE_MAX_PLANES]; /* image size in memory */ + struct v4l2_rect c_rect; /* crop/compose rectangle */ + struct vpe_fmt *fmt; /* format info */ +}; + +/* vpe_q_data flag bits */ +#define Q_DATA_FRAME_1D (1 << 0) +#define Q_DATA_MODE_TILED (1 << 1) +#define Q_DATA_INTERLACED (1 << 2) + +enum { + Q_DATA_SRC = 0, + Q_DATA_DST = 1, +}; + +/* find our format description corresponding to the passed v4l2_format */ +static struct vpe_fmt *find_format(struct v4l2_format *f) +{ + struct vpe_fmt *fmt; + unsigned int k; + + for (k = 0; k < ARRAY_SIZE(vpe_formats); k++) { + fmt = &vpe_formats[k]; + if (fmt->fourcc == f->fmt.pix.pixelformat) + return fmt; + } + + return NULL; +} + +/* + * there is one vpe_dev structure in the driver, it is shared by + * all instances. + */ +struct vpe_dev { + struct v4l2_device v4l2_dev; + struct video_device vfd; + struct v4l2_m2m_dev *m2m_dev; + + atomic_t num_instances; /* count of driver instances */ + dma_addr_t loaded_mmrs; /* shadow mmrs in device */ + struct mutex dev_mutex; + spinlock_t lock; + + int irq; + void __iomem *base; + + struct vb2_alloc_ctx *alloc_ctx; + struct vpdma_data *vpdma; /* vpdma data handle */ +}; + +/* + * There is one vpe_ctx structure for each m2m context. + */ +struct vpe_ctx { + struct v4l2_fh fh; + struct vpe_dev *dev; + struct v4l2_m2m_ctx *m2m_ctx; + struct v4l2_ctrl_handler hdl; + + unsigned int field; /* current field */ + unsigned int sequence; /* current frame/field seq */ + unsigned int aborting; /* abort after next irq */ + + unsigned int bufs_per_job; /* input buffers per batch */ + unsigned int bufs_completed; /* bufs done in this batch */ + + struct vpe_q_data q_data[2]; /* src & dst queue data */ + struct vb2_buffer *src_vbs[VPE_MAX_SRC_BUFS]; + struct vb2_buffer *dst_vb; + + dma_addr_t mv_buf_dma[2]; /* dma addrs of motion vector in/out bufs */ + void *mv_buf[2]; /* virtual addrs of motion vector bufs */ + size_t mv_buf_size; /* current motion vector buffer size */ + struct vpdma_buf mmr_adb; /* shadow reg addr/data block */ + struct vpdma_desc_list desc_list; /* DMA descriptor list */ + + bool deinterlacing; /* using de-interlacer */ + bool load_mmrs; /* have new shadow reg values */ + + unsigned int src_mv_buf_selector; +}; + + +/* + * M2M devices get 2 queues. + * Return the queue given the type. + */ +static struct vpe_q_data *get_q_data(struct vpe_ctx *ctx, + enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: + return &ctx->q_data[Q_DATA_SRC]; + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: + return &ctx->q_data[Q_DATA_DST]; + default: + BUG(); + } + return NULL; +} + +static u32 read_reg(struct vpe_dev *dev, int offset) +{ + return ioread32(dev->base + offset); +} + +static void write_reg(struct vpe_dev *dev, int offset, u32 value) +{ + iowrite32(value, dev->base + offset); +} + +/* register field read/write helpers */ +static int get_field(u32 value, u32 mask, int shift) +{ + return (value & (mask << shift)) >> shift; +} + +static int read_field_reg(struct vpe_dev *dev, int offset, u32 mask, int shift) +{ + return get_field(read_reg(dev, offset), mask, shift); +} + +static void write_field(u32 *valp, u32 field, u32 mask, int shift) +{ + u32 val = *valp; + + val &= ~(mask << shift); + val |= (field & mask) << shift; + *valp = val; +} + +static void write_field_reg(struct vpe_dev *dev, int offset, u32 field, + u32 mask, int shift) +{ + u32 val = read_reg(dev, offset); + + write_field(&val, field, mask, shift); + + write_reg(dev, offset, val); +} + +/* + * DMA address/data block for the shadow registers + */ +struct vpe_mmr_adb { + struct vpdma_adb_hdr out_fmt_hdr; + u32 out_fmt_reg[1]; + u32 out_fmt_pad[3]; + struct vpdma_adb_hdr us1_hdr; + u32 us1_regs[8]; + struct vpdma_adb_hdr us2_hdr; + u32 us2_regs[8]; + struct vpdma_adb_hdr us3_hdr; + u32 us3_regs[8]; + struct vpdma_adb_hdr dei_hdr; + u32 dei_regs[8]; + struct vpdma_adb_hdr sc_hdr; + u32 sc_regs[1]; + u32 sc_pad[3]; + struct vpdma_adb_hdr csc_hdr; + u32 csc_regs[6]; + u32 csc_pad[2]; +}; + +#define VPE_SET_MMR_ADB_HDR(ctx, hdr, regs, offset_a) \ + VPDMA_SET_MMR_ADB_HDR(ctx->mmr_adb, vpe_mmr_adb, hdr, regs, offset_a) +/* + * Set the headers for all of the address/data block structures. + */ +static void init_adb_hdrs(struct vpe_ctx *ctx) +{ + VPE_SET_MMR_ADB_HDR(ctx, out_fmt_hdr, out_fmt_reg, VPE_CLK_FORMAT_SELECT); + VPE_SET_MMR_ADB_HDR(ctx, us1_hdr, us1_regs, VPE_US1_R0); + VPE_SET_MMR_ADB_HDR(ctx, us2_hdr, us2_regs, VPE_US2_R0); + VPE_SET_MMR_ADB_HDR(ctx, us3_hdr, us3_regs, VPE_US3_R0); + VPE_SET_MMR_ADB_HDR(ctx, dei_hdr, dei_regs, VPE_DEI_FRAME_SIZE); + VPE_SET_MMR_ADB_HDR(ctx, sc_hdr, sc_regs, VPE_SC_MP_SC0); + VPE_SET_MMR_ADB_HDR(ctx, csc_hdr, csc_regs, VPE_CSC_CSC00); +}; + +/* + * Allocate or re-allocate the motion vector DMA buffers + * There are two buffers, one for input and one for output. + * However, the roles are reversed after each field is processed. + * In other words, after each field is processed, the previous + * output (dst) MV buffer becomes the new input (src) MV buffer. + */ +static int realloc_mv_buffers(struct vpe_ctx *ctx, size_t size) +{ + struct device *dev = ctx->dev->v4l2_dev.dev; + + if (ctx->mv_buf_size == size) + return 0; + + if (ctx->mv_buf[0]) + dma_free_coherent(dev, ctx->mv_buf_size, ctx->mv_buf[0], + ctx->mv_buf_dma[0]); + + if (ctx->mv_buf[1]) + dma_free_coherent(dev, ctx->mv_buf_size, ctx->mv_buf[1], + ctx->mv_buf_dma[1]); + + if (size == 0) + return 0; + + ctx->mv_buf[0] = dma_alloc_coherent(dev, size, &ctx->mv_buf_dma[0], + GFP_KERNEL); + if (!ctx->mv_buf[0]) { + vpe_err(ctx->dev, "failed to allocate motion vector buffer\n"); + return -ENOMEM; + } + + ctx->mv_buf[1] = dma_alloc_coherent(dev, size, &ctx->mv_buf_dma[1], + GFP_KERNEL); + if (!ctx->mv_buf[1]) { + vpe_err(ctx->dev, "failed to allocate motion vector buffer\n"); + dma_free_coherent(dev, size, ctx->mv_buf[0], + ctx->mv_buf_dma[0]); + + return -ENOMEM; + } + + ctx->mv_buf_size = size; + ctx->src_mv_buf_selector = 0; + + return 0; +} + +static void free_mv_buffers(struct vpe_ctx *ctx) +{ + realloc_mv_buffers(ctx, 0); +} + +/* + * While de-interlacing, we keep the two most recent input buffers + * around. This function frees those two buffers when we have + * finished processing the current stream. + */ +static void free_vbs(struct vpe_ctx *ctx) +{ + struct vpe_dev *dev = ctx->dev; + unsigned long flags; + + if (ctx->src_vbs[2] == NULL) + return; + + spin_lock_irqsave(&dev->lock, flags); + if (ctx->src_vbs[2]) { + v4l2_m2m_buf_done(ctx->src_vbs[2], VB2_BUF_STATE_DONE); + v4l2_m2m_buf_done(ctx->src_vbs[1], VB2_BUF_STATE_DONE); + } + spin_unlock_irqrestore(&dev->lock, flags); +} + +/* + * Enable or disable the VPE clocks + */ +static void vpe_set_clock_enable(struct vpe_dev *dev, bool on) +{ + u32 val = 0; + + if (on) + val = VPE_DATA_PATH_CLK_ENABLE | VPE_VPEDMA_CLK_ENABLE; + write_reg(dev, VPE_CLK_ENABLE, val); +} + +static void vpe_top_reset(struct vpe_dev *dev) +{ + + write_field_reg(dev, VPE_CLK_RESET, 1, VPE_DATA_PATH_CLK_RESET_MASK, + VPE_DATA_PATH_CLK_RESET_SHIFT); + + usleep_range(100, 150); + + write_field_reg(dev, VPE_CLK_RESET, 0, VPE_DATA_PATH_CLK_RESET_MASK, + VPE_DATA_PATH_CLK_RESET_SHIFT); +} + +static void vpe_top_vpdma_reset(struct vpe_dev *dev) +{ + write_field_reg(dev, VPE_CLK_RESET, 1, VPE_VPDMA_CLK_RESET_MASK, + VPE_VPDMA_CLK_RESET_SHIFT); + + usleep_range(100, 150); + + write_field_reg(dev, VPE_CLK_RESET, 0, VPE_VPDMA_CLK_RESET_MASK, + VPE_VPDMA_CLK_RESET_SHIFT); +} + +/* + * Load the correct of upsampler coefficients into the shadow MMRs + */ +static void set_us_coefficients(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC]; + u32 *us1_reg = &mmr_adb->us1_regs[0]; + u32 *us2_reg = &mmr_adb->us2_regs[0]; + u32 *us3_reg = &mmr_adb->us3_regs[0]; + const unsigned short *cp, *end_cp; + + cp = &us_coeffs[0].anchor_fid0_c0; + + if (s_q_data->flags & Q_DATA_INTERLACED) /* interlaced */ + cp += sizeof(us_coeffs[0]) / sizeof(*cp); + + end_cp = cp + sizeof(us_coeffs[0]) / sizeof(*cp); + + while (cp < end_cp) { + write_field(us1_reg, *cp++, VPE_US_C0_MASK, VPE_US_C0_SHIFT); + write_field(us1_reg, *cp++, VPE_US_C1_MASK, VPE_US_C1_SHIFT); + *us2_reg++ = *us1_reg; + *us3_reg++ = *us1_reg++; + } + ctx->load_mmrs = true; +} + +/* + * Set the upsampler config mode and the VPDMA line mode in the shadow MMRs. + */ +static void set_cfg_and_line_modes(struct vpe_ctx *ctx) +{ + struct vpe_fmt *fmt = ctx->q_data[Q_DATA_SRC].fmt; + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + u32 *us1_reg0 = &mmr_adb->us1_regs[0]; + u32 *us2_reg0 = &mmr_adb->us2_regs[0]; + u32 *us3_reg0 = &mmr_adb->us3_regs[0]; + int line_mode = 1; + int cfg_mode = 1; + + /* + * Cfg Mode 0: YUV420 source, enable upsampler, DEI is de-interlacing. + * Cfg Mode 1: YUV422 source, disable upsampler, DEI is de-interlacing. + */ + + if (fmt->fourcc == V4L2_PIX_FMT_NV12) { + cfg_mode = 0; + line_mode = 0; /* double lines to line buffer */ + } + + write_field(us1_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT); + write_field(us2_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT); + write_field(us3_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT); + + /* regs for now */ + vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA1_IN); + vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA2_IN); + vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA3_IN); + + /* frame start for input luma */ + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_LUMA1_IN); + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_LUMA2_IN); + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_LUMA3_IN); + + /* frame start for input chroma */ + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_CHROMA1_IN); + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_CHROMA2_IN); + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_CHROMA3_IN); + + /* frame start for MV in client */ + vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE, + VPE_CHAN_MV_IN); + + ctx->load_mmrs = true; +} + +/* + * Set the shadow registers that are modified when the source + * format changes. + */ +static void set_src_registers(struct vpe_ctx *ctx) +{ + set_us_coefficients(ctx); +} + +/* + * Set the shadow registers that are modified when the destination + * format changes. + */ +static void set_dst_registers(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + struct vpe_fmt *fmt = ctx->q_data[Q_DATA_DST].fmt; + u32 val = 0; + + /* select RGB path when color space conversion is supported in future */ + if (fmt->fourcc == V4L2_PIX_FMT_RGB24) + val |= VPE_RGB_OUT_SELECT | VPE_CSC_SRC_DEI_SCALER; + else if (fmt->fourcc == V4L2_PIX_FMT_NV16) + val |= VPE_COLOR_SEPARATE_422; + + /* The source of CHR_DS is always the scaler, whether it's used or not */ + val |= VPE_DS_SRC_DEI_SCALER; + + if (fmt->fourcc != V4L2_PIX_FMT_NV12) + val |= VPE_DS_BYPASS; + + mmr_adb->out_fmt_reg[0] = val; + + ctx->load_mmrs = true; +} + +/* + * Set the de-interlacer shadow register values + */ +static void set_dei_regs(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC]; + unsigned int src_h = s_q_data->c_rect.height; + unsigned int src_w = s_q_data->c_rect.width; + u32 *dei_mmr0 = &mmr_adb->dei_regs[0]; + bool deinterlace = true; + u32 val = 0; + + /* + * according to TRM, we should set DEI in progressive bypass mode when + * the input content is progressive, however, DEI is bypassed correctly + * for both progressive and interlace content in interlace bypass mode. + * It has been recommended not to use progressive bypass mode. + */ + if ((!ctx->deinterlacing && (s_q_data->flags & Q_DATA_INTERLACED)) || + !(s_q_data->flags & Q_DATA_INTERLACED)) { + deinterlace = false; + val = VPE_DEI_INTERLACE_BYPASS; + } + + src_h = deinterlace ? src_h * 2 : src_h; + + val |= (src_h << VPE_DEI_HEIGHT_SHIFT) | + (src_w << VPE_DEI_WIDTH_SHIFT) | + VPE_DEI_FIELD_FLUSH; + + *dei_mmr0 = val; + + ctx->load_mmrs = true; +} + +static void set_dei_shadow_registers(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + u32 *dei_mmr = &mmr_adb->dei_regs[0]; + const struct vpe_dei_regs *cur = &dei_regs; + + dei_mmr[2] = cur->mdt_spacial_freq_thr_reg; + dei_mmr[3] = cur->edi_config_reg; + dei_mmr[4] = cur->edi_lut_reg0; + dei_mmr[5] = cur->edi_lut_reg1; + dei_mmr[6] = cur->edi_lut_reg2; + dei_mmr[7] = cur->edi_lut_reg3; + + ctx->load_mmrs = true; +} + +static void set_csc_coeff_bypass(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + u32 *shadow_csc_reg5 = &mmr_adb->csc_regs[5]; + + *shadow_csc_reg5 |= VPE_CSC_BYPASS; + + ctx->load_mmrs = true; +} + +static void set_sc_regs_bypass(struct vpe_ctx *ctx) +{ + struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr; + u32 *sc_reg0 = &mmr_adb->sc_regs[0]; + u32 val = 0; + + val |= VPE_SC_BYPASS; + *sc_reg0 = val; + + ctx->load_mmrs = true; +} + +/* + * Set the shadow registers whose values are modified when either the + * source or destination format is changed. + */ +static int set_srcdst_params(struct vpe_ctx *ctx) +{ + struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC]; + struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST]; + size_t mv_buf_size; + int ret; + + ctx->sequence = 0; + ctx->field = V4L2_FIELD_TOP; + + if ((s_q_data->flags & Q_DATA_INTERLACED) && + !(d_q_data->flags & Q_DATA_INTERLACED)) { + const struct vpdma_data_format *mv = + &vpdma_misc_fmts[VPDMA_DATA_FMT_MV]; + + ctx->deinterlacing = 1; + mv_buf_size = + (s_q_data->width * s_q_data->height * mv->depth) >> 3; + } else { + ctx->deinterlacing = 0; + mv_buf_size = 0; + } + + free_vbs(ctx); + + ret = realloc_mv_buffers(ctx, mv_buf_size); + if (ret) + return ret; + + set_cfg_and_line_modes(ctx); + set_dei_regs(ctx); + set_csc_coeff_bypass(ctx); + set_sc_regs_bypass(ctx); + + return 0; +} + +/* + * Return the vpe_ctx structure for a given struct file + */ +static struct vpe_ctx *file2ctx(struct file *file) +{ + return container_of(file->private_data, struct vpe_ctx, fh); +} + +/* + * mem2mem callbacks + */ + +/** + * job_ready() - check whether an instance is ready to be scheduled to run + */ +static int job_ready(void *priv) +{ + struct vpe_ctx *ctx = priv; + int needed = ctx->bufs_per_job; + + if (ctx->deinterlacing && ctx->src_vbs[2] == NULL) + needed += 2; /* need additional two most recent fields */ + + if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < needed) + return 0; + + return 1; +} + +static void job_abort(void *priv) +{ + struct vpe_ctx *ctx = priv; + + /* Will cancel the transaction in the next interrupt handler */ + ctx->aborting = 1; +} + +/* + * Lock access to the device + */ +static void vpe_lock(void *priv) +{ + struct vpe_ctx *ctx = priv; + struct vpe_dev *dev = ctx->dev; + mutex_lock(&dev->dev_mutex); +} + +static void vpe_unlock(void *priv) +{ + struct vpe_ctx *ctx = priv; + struct vpe_dev *dev = ctx->dev; + mutex_unlock(&dev->dev_mutex); +} + +static void vpe_dump_regs(struct vpe_dev *dev) +{ +#define DUMPREG(r) vpe_dbg(dev, "%-35s %08x\n", #r, read_reg(dev, VPE_##r)) + + vpe_dbg(dev, "VPE Registers:\n"); + + DUMPREG(PID); + DUMPREG(SYSCONFIG); + DUMPREG(INT0_STATUS0_RAW); + DUMPREG(INT0_STATUS0); + DUMPREG(INT0_ENABLE0); + DUMPREG(INT0_STATUS1_RAW); + DUMPREG(INT0_STATUS1); + DUMPREG(INT0_ENABLE1); + DUMPREG(CLK_ENABLE); + DUMPREG(CLK_RESET); + DUMPREG(CLK_FORMAT_SELECT); + DUMPREG(CLK_RANGE_MAP); + DUMPREG(US1_R0); + DUMPREG(US1_R1); + DUMPREG(US1_R2); + DUMPREG(US1_R3); + DUMPREG(US1_R4); + DUMPREG(US1_R5); + DUMPREG(US1_R6); + DUMPREG(US1_R7); + DUMPREG(US2_R0); + DUMPREG(US2_R1); + DUMPREG(US2_R2); + DUMPREG(US2_R3); + DUMPREG(US2_R4); + DUMPREG(US2_R5); + DUMPREG(US2_R6); + DUMPREG(US2_R7); + DUMPREG(US3_R0); + DUMPREG(US3_R1); + DUMPREG(US3_R2); + DUMPREG(US3_R3); + DUMPREG(US3_R4); + DUMPREG(US3_R5); + DUMPREG(US3_R6); + DUMPREG(US3_R7); + DUMPREG(DEI_FRAME_SIZE); + DUMPREG(MDT_BYPASS); + DUMPREG(MDT_SF_THRESHOLD); + DUMPREG(EDI_CONFIG); + DUMPREG(DEI_EDI_LUT_R0); + DUMPREG(DEI_EDI_LUT_R1); + DUMPREG(DEI_EDI_LUT_R2); + DUMPREG(DEI_EDI_LUT_R3); + DUMPREG(DEI_FMD_WINDOW_R0); + DUMPREG(DEI_FMD_WINDOW_R1); + DUMPREG(DEI_FMD_CONTROL_R0); + DUMPREG(DEI_FMD_CONTROL_R1); + DUMPREG(DEI_FMD_STATUS_R0); + DUMPREG(DEI_FMD_STATUS_R1); + DUMPREG(DEI_FMD_STATUS_R2); + DUMPREG(SC_MP_SC0); + DUMPREG(SC_MP_SC1); + DUMPREG(SC_MP_SC2); + DUMPREG(SC_MP_SC3); + DUMPREG(SC_MP_SC4); + DUMPREG(SC_MP_SC5); + DUMPREG(SC_MP_SC6); + DUMPREG(SC_MP_SC8); + DUMPREG(SC_MP_SC9); + DUMPREG(SC_MP_SC10); + DUMPREG(SC_MP_SC11); + DUMPREG(SC_MP_SC12); + DUMPREG(SC_MP_SC13); + DUMPREG(SC_MP_SC17); + DUMPREG(SC_MP_SC18); + DUMPREG(SC_MP_SC19); + DUMPREG(SC_MP_SC20); + DUMPREG(SC_MP_SC21); + DUMPREG(SC_MP_SC22); + DUMPREG(SC_MP_SC23); + DUMPREG(SC_MP_SC24); + DUMPREG(SC_MP_SC25); + DUMPREG(CSC_CSC00); + DUMPREG(CSC_CSC01); + DUMPREG(CSC_CSC02); + DUMPREG(CSC_CSC03); + DUMPREG(CSC_CSC04); + DUMPREG(CSC_CSC05); +#undef DUMPREG +} + +static void add_out_dtd(struct vpe_ctx *ctx, int port) +{ + struct vpe_q_data *q_data = &ctx->q_data[Q_DATA_DST]; + const struct vpe_port_data *p_data = &port_data[port]; + struct vb2_buffer *vb = ctx->dst_vb; + struct v4l2_rect *c_rect = &q_data->c_rect; + struct vpe_fmt *fmt = q_data->fmt; + const struct vpdma_data_format *vpdma_fmt; + int mv_buf_selector = !ctx->src_mv_buf_selector; + dma_addr_t dma_addr; + u32 flags = 0; + + if (port == VPE_PORT_MV_OUT) { + vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV]; + dma_addr = ctx->mv_buf_dma[mv_buf_selector]; + } else { + /* to incorporate interleaved formats */ + int plane = fmt->coplanar ? p_data->vb_part : 0; + + vpdma_fmt = fmt->vpdma_fmt[plane]; + dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane); + if (!dma_addr) { + vpe_err(ctx->dev, + "acquiring output buffer(%d) dma_addr failed\n", + port); + return; + } + } + + if (q_data->flags & Q_DATA_FRAME_1D) + flags |= VPDMA_DATA_FRAME_1D; + if (q_data->flags & Q_DATA_MODE_TILED) + flags |= VPDMA_DATA_MODE_TILED; + + vpdma_add_out_dtd(&ctx->desc_list, c_rect, vpdma_fmt, dma_addr, + p_data->channel, flags); +} + +static void add_in_dtd(struct vpe_ctx *ctx, int port) +{ + struct vpe_q_data *q_data = &ctx->q_data[Q_DATA_SRC]; + const struct vpe_port_data *p_data = &port_data[port]; + struct vb2_buffer *vb = ctx->src_vbs[p_data->vb_index]; + struct v4l2_rect *c_rect = &q_data->c_rect; + struct vpe_fmt *fmt = q_data->fmt; + const struct vpdma_data_format *vpdma_fmt; + int mv_buf_selector = ctx->src_mv_buf_selector; + int field = vb->v4l2_buf.field == V4L2_FIELD_BOTTOM; + dma_addr_t dma_addr; + u32 flags = 0; + + if (port == VPE_PORT_MV_IN) { + vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV]; + dma_addr = ctx->mv_buf_dma[mv_buf_selector]; + } else { + /* to incorporate interleaved formats */ + int plane = fmt->coplanar ? p_data->vb_part : 0; + + vpdma_fmt = fmt->vpdma_fmt[plane]; + + dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane); + if (!dma_addr) { + vpe_err(ctx->dev, + "acquiring input buffer(%d) dma_addr failed\n", + port); + return; + } + } + + if (q_data->flags & Q_DATA_FRAME_1D) + flags |= VPDMA_DATA_FRAME_1D; + if (q_data->flags & Q_DATA_MODE_TILED) + flags |= VPDMA_DATA_MODE_TILED; + + vpdma_add_in_dtd(&ctx->desc_list, q_data->width, q_data->height, + c_rect, vpdma_fmt, dma_addr, p_data->channel, field, flags); +} + +/* + * Enable the expected IRQ sources + */ +static void enable_irqs(struct vpe_ctx *ctx) +{ + write_reg(ctx->dev, VPE_INT0_ENABLE0_SET, VPE_INT0_LIST0_COMPLETE); + write_reg(ctx->dev, VPE_INT0_ENABLE1_SET, VPE_DEI_ERROR_INT | + VPE_DS1_UV_ERROR_INT); + + vpdma_enable_list_complete_irq(ctx->dev->vpdma, 0, true); +} + +static void disable_irqs(struct vpe_ctx *ctx) +{ + write_reg(ctx->dev, VPE_INT0_ENABLE0_CLR, 0xffffffff); + write_reg(ctx->dev, VPE_INT0_ENABLE1_CLR, 0xffffffff); + + vpdma_enable_list_complete_irq(ctx->dev->vpdma, 0, false); +} + +/* device_run() - prepares and starts the device + * + * This function is only called when both the source and destination + * buffers are in place. + */ +static void device_run(void *priv) +{ + struct vpe_ctx *ctx = priv; + struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST]; + + if (ctx->deinterlacing && ctx->src_vbs[2] == NULL) { + ctx->src_vbs[2] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + WARN_ON(ctx->src_vbs[2] == NULL); + ctx->src_vbs[1] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + WARN_ON(ctx->src_vbs[1] == NULL); + } + + ctx->src_vbs[0] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + WARN_ON(ctx->src_vbs[0] == NULL); + ctx->dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); + WARN_ON(ctx->dst_vb == NULL); + + /* config descriptors */ + if (ctx->dev->loaded_mmrs != ctx->mmr_adb.dma_addr || ctx->load_mmrs) { + vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->mmr_adb); + vpdma_add_cfd_adb(&ctx->desc_list, CFD_MMR_CLIENT, &ctx->mmr_adb); + ctx->dev->loaded_mmrs = ctx->mmr_adb.dma_addr; + ctx->load_mmrs = false; + } + + /* output data descriptors */ + if (ctx->deinterlacing) + add_out_dtd(ctx, VPE_PORT_MV_OUT); + + add_out_dtd(ctx, VPE_PORT_LUMA_OUT); + if (d_q_data->fmt->coplanar) + add_out_dtd(ctx, VPE_PORT_CHROMA_OUT); + + /* input data descriptors */ + if (ctx->deinterlacing) { + add_in_dtd(ctx, VPE_PORT_LUMA3_IN); + add_in_dtd(ctx, VPE_PORT_CHROMA3_IN); + + add_in_dtd(ctx, VPE_PORT_LUMA2_IN); + add_in_dtd(ctx, VPE_PORT_CHROMA2_IN); + } + + add_in_dtd(ctx, VPE_PORT_LUMA1_IN); + add_in_dtd(ctx, VPE_PORT_CHROMA1_IN); + + if (ctx->deinterlacing) + add_in_dtd(ctx, VPE_PORT_MV_IN); + + /* sync on channel control descriptors for input ports */ + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA1_IN); + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA1_IN); + + if (ctx->deinterlacing) { + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, + VPE_CHAN_LUMA2_IN); + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, + VPE_CHAN_CHROMA2_IN); + + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, + VPE_CHAN_LUMA3_IN); + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, + VPE_CHAN_CHROMA3_IN); + + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_MV_IN); + } + + /* sync on channel control descriptors for output ports */ + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA_OUT); + if (d_q_data->fmt->coplanar) + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA_OUT); + + if (ctx->deinterlacing) + vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_MV_OUT); + + enable_irqs(ctx); + + vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->desc_list.buf); + vpdma_submit_descs(ctx->dev->vpdma, &ctx->desc_list); +} + +static void dei_error(struct vpe_ctx *ctx) +{ + dev_warn(ctx->dev->v4l2_dev.dev, + "received DEI error interrupt\n"); +} + +static void ds1_uv_error(struct vpe_ctx *ctx) +{ + dev_warn(ctx->dev->v4l2_dev.dev, + "received downsampler error interrupt\n"); +} + +static irqreturn_t vpe_irq(int irq_vpe, void *data) +{ + struct vpe_dev *dev = (struct vpe_dev *)data; + struct vpe_ctx *ctx; + struct vpe_q_data *d_q_data; + struct vb2_buffer *s_vb, *d_vb; + struct v4l2_buffer *s_buf, *d_buf; + unsigned long flags; + u32 irqst0, irqst1; + + irqst0 = read_reg(dev, VPE_INT0_STATUS0); + if (irqst0) { + write_reg(dev, VPE_INT0_STATUS0_CLR, irqst0); + vpe_dbg(dev, "INT0_STATUS0 = 0x%08x\n", irqst0); + } + + irqst1 = read_reg(dev, VPE_INT0_STATUS1); + if (irqst1) { + write_reg(dev, VPE_INT0_STATUS1_CLR, irqst1); + vpe_dbg(dev, "INT0_STATUS1 = 0x%08x\n", irqst1); + } + + ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev); + if (!ctx) { + vpe_err(dev, "instance released before end of transaction\n"); + goto handled; + } + + if (irqst1) { + if (irqst1 & VPE_DEI_ERROR_INT) { + irqst1 &= ~VPE_DEI_ERROR_INT; + dei_error(ctx); + } + if (irqst1 & VPE_DS1_UV_ERROR_INT) { + irqst1 &= ~VPE_DS1_UV_ERROR_INT; + ds1_uv_error(ctx); + } + } + + if (irqst0) { + if (irqst0 & VPE_INT0_LIST0_COMPLETE) + vpdma_clear_list_stat(ctx->dev->vpdma); + + irqst0 &= ~(VPE_INT0_LIST0_COMPLETE); + } + + if (irqst0 | irqst1) { + dev_warn(dev->v4l2_dev.dev, "Unexpected interrupt: " + "INT0_STATUS0 = 0x%08x, INT0_STATUS1 = 0x%08x\n", + irqst0, irqst1); + } + + disable_irqs(ctx); + + vpdma_unmap_desc_buf(dev->vpdma, &ctx->desc_list.buf); + vpdma_unmap_desc_buf(dev->vpdma, &ctx->mmr_adb); + + vpdma_reset_desc_list(&ctx->desc_list); + + /* the previous dst mv buffer becomes the next src mv buffer */ + ctx->src_mv_buf_selector = !ctx->src_mv_buf_selector; + + if (ctx->aborting) + goto finished; + + s_vb = ctx->src_vbs[0]; + d_vb = ctx->dst_vb; + s_buf = &s_vb->v4l2_buf; + d_buf = &d_vb->v4l2_buf; + + d_buf->timestamp = s_buf->timestamp; + if (s_buf->flags & V4L2_BUF_FLAG_TIMECODE) { + d_buf->flags |= V4L2_BUF_FLAG_TIMECODE; + d_buf->timecode = s_buf->timecode; + } + d_buf->sequence = ctx->sequence; + d_buf->field = ctx->field; + + d_q_data = &ctx->q_data[Q_DATA_DST]; + if (d_q_data->flags & Q_DATA_INTERLACED) { + if (ctx->field == V4L2_FIELD_BOTTOM) { + ctx->sequence++; + ctx->field = V4L2_FIELD_TOP; + } else { + WARN_ON(ctx->field != V4L2_FIELD_TOP); + ctx->field = V4L2_FIELD_BOTTOM; + } + } else { + ctx->sequence++; + } + + if (ctx->deinterlacing) + s_vb = ctx->src_vbs[2]; + + spin_lock_irqsave(&dev->lock, flags); + v4l2_m2m_buf_done(s_vb, VB2_BUF_STATE_DONE); + v4l2_m2m_buf_done(d_vb, VB2_BUF_STATE_DONE); + spin_unlock_irqrestore(&dev->lock, flags); + + if (ctx->deinterlacing) { + ctx->src_vbs[2] = ctx->src_vbs[1]; + ctx->src_vbs[1] = ctx->src_vbs[0]; + } + + ctx->bufs_completed++; + if (ctx->bufs_completed < ctx->bufs_per_job) { + device_run(ctx); + goto handled; + } + +finished: + vpe_dbg(ctx->dev, "finishing transaction\n"); + ctx->bufs_completed = 0; + v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx); +handled: + return IRQ_HANDLED; +} + +/* + * video ioctls + */ +static int vpe_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strncpy(cap->driver, VPE_MODULE_NAME, sizeof(cap->driver) - 1); + strncpy(cap->card, VPE_MODULE_NAME, sizeof(cap->card) - 1); + strlcpy(cap->bus_info, VPE_MODULE_NAME, sizeof(cap->bus_info)); + cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int __enum_fmt(struct v4l2_fmtdesc *f, u32 type) +{ + int i, index; + struct vpe_fmt *fmt = NULL; + + index = 0; + for (i = 0; i < ARRAY_SIZE(vpe_formats); ++i) { + if (vpe_formats[i].types & type) { + if (index == f->index) { + fmt = &vpe_formats[i]; + break; + } + index++; + } + } + + if (!fmt) + return -EINVAL; + + strncpy(f->description, fmt->name, sizeof(f->description) - 1); + f->pixelformat = fmt->fourcc; + return 0; +} + +static int vpe_enum_fmt(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + if (V4L2_TYPE_IS_OUTPUT(f->type)) + return __enum_fmt(f, VPE_FMT_TYPE_OUTPUT); + + return __enum_fmt(f, VPE_FMT_TYPE_CAPTURE); +} + +static int vpe_g_fmt(struct file *file, void *priv, struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct vpe_ctx *ctx = file2ctx(file); + struct vb2_queue *vq; + struct vpe_q_data *q_data; + int i; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + + pix->width = q_data->width; + pix->height = q_data->height; + pix->pixelformat = q_data->fmt->fourcc; + pix->field = q_data->field; + + if (V4L2_TYPE_IS_OUTPUT(f->type)) { + pix->colorspace = q_data->colorspace; + } else { + struct vpe_q_data *s_q_data; + + /* get colorspace from the source queue */ + s_q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); + + pix->colorspace = s_q_data->colorspace; + } + + pix->num_planes = q_data->fmt->coplanar ? 2 : 1; + + for (i = 0; i < pix->num_planes; i++) { + pix->plane_fmt[i].bytesperline = q_data->bytesperline[i]; + pix->plane_fmt[i].sizeimage = q_data->sizeimage[i]; + } + + return 0; +} + +static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f, + struct vpe_fmt *fmt, int type) +{ + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *plane_fmt; + int i; + + if (!fmt || !(fmt->types & type)) { + vpe_err(ctx->dev, "Fourcc format (0x%08x) invalid.\n", + pix->pixelformat); + return -EINVAL; + } + + if (pix->field != V4L2_FIELD_NONE && pix->field != V4L2_FIELD_ALTERNATE) + pix->field = V4L2_FIELD_NONE; + + v4l_bound_align_image(&pix->width, MIN_W, MAX_W, W_ALIGN, + &pix->height, MIN_H, MAX_H, H_ALIGN, + S_ALIGN); + + pix->num_planes = fmt->coplanar ? 2 : 1; + pix->pixelformat = fmt->fourcc; + + if (type == VPE_FMT_TYPE_CAPTURE) { + struct vpe_q_data *s_q_data; + + /* get colorspace from the source queue */ + s_q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); + + pix->colorspace = s_q_data->colorspace; + } else { + if (!pix->colorspace) + pix->colorspace = V4L2_COLORSPACE_SMPTE240M; + } + + for (i = 0; i < pix->num_planes; i++) { + int depth; + + plane_fmt = &pix->plane_fmt[i]; + depth = fmt->vpdma_fmt[i]->depth; + + if (i == VPE_LUMA) + plane_fmt->bytesperline = + round_up((pix->width * depth) >> 3, + 1 << L_ALIGN); + else + plane_fmt->bytesperline = pix->width; + + plane_fmt->sizeimage = + (pix->height * pix->width * depth) >> 3; + } + + return 0; +} + +static int vpe_try_fmt(struct file *file, void *priv, struct v4l2_format *f) +{ + struct vpe_ctx *ctx = file2ctx(file); + struct vpe_fmt *fmt = find_format(f); + + if (V4L2_TYPE_IS_OUTPUT(f->type)) + return __vpe_try_fmt(ctx, f, fmt, VPE_FMT_TYPE_OUTPUT); + else + return __vpe_try_fmt(ctx, f, fmt, VPE_FMT_TYPE_CAPTURE); +} + +static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f) +{ + struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp; + struct v4l2_plane_pix_format *plane_fmt; + struct vpe_q_data *q_data; + struct vb2_queue *vq; + int i; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + if (vb2_is_busy(vq)) { + vpe_err(ctx->dev, "queue busy\n"); + return -EBUSY; + } + + q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; + + q_data->fmt = find_format(f); + q_data->width = pix->width; + q_data->height = pix->height; + q_data->colorspace = pix->colorspace; + q_data->field = pix->field; + + for (i = 0; i < pix->num_planes; i++) { + plane_fmt = &pix->plane_fmt[i]; + + q_data->bytesperline[i] = plane_fmt->bytesperline; + q_data->sizeimage[i] = plane_fmt->sizeimage; + } + + q_data->c_rect.left = 0; + q_data->c_rect.top = 0; + q_data->c_rect.width = q_data->width; + q_data->c_rect.height = q_data->height; + + if (q_data->field == V4L2_FIELD_ALTERNATE) + q_data->flags |= Q_DATA_INTERLACED; + else + q_data->flags &= ~Q_DATA_INTERLACED; + + vpe_dbg(ctx->dev, "Setting format for type %d, wxh: %dx%d, fmt: %d bpl_y %d", + f->type, q_data->width, q_data->height, q_data->fmt->fourcc, + q_data->bytesperline[VPE_LUMA]); + if (q_data->fmt->coplanar) + vpe_dbg(ctx->dev, " bpl_uv %d\n", + q_data->bytesperline[VPE_CHROMA]); + + return 0; +} + +static int vpe_s_fmt(struct file *file, void *priv, struct v4l2_format *f) +{ + int ret; + struct vpe_ctx *ctx = file2ctx(file); + + ret = vpe_try_fmt(file, priv, f); + if (ret) + return ret; + + ret = __vpe_s_fmt(ctx, f); + if (ret) + return ret; + + if (V4L2_TYPE_IS_OUTPUT(f->type)) + set_src_registers(ctx); + else + set_dst_registers(ctx); + + return set_srcdst_params(ctx); +} + +static int vpe_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *reqbufs) +{ + struct vpe_ctx *ctx = file2ctx(file); + + return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); +} + +static int vpe_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + struct vpe_ctx *ctx = file2ctx(file); + + return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); +} + +static int vpe_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + struct vpe_ctx *ctx = file2ctx(file); + + return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); +} + +static int vpe_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + struct vpe_ctx *ctx = file2ctx(file); + + return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); +} + +static int vpe_streamon(struct file *file, void *priv, enum v4l2_buf_type type) +{ + struct vpe_ctx *ctx = file2ctx(file); + + return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); +} + +static int vpe_streamoff(struct file *file, void *priv, enum v4l2_buf_type type) +{ + struct vpe_ctx *ctx = file2ctx(file); + + vpe_dump_regs(ctx->dev); + vpdma_dump_regs(ctx->dev->vpdma); + + return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); +} + +/* + * defines number of buffers/frames a context can process with VPE before + * switching to a different context. default value is 1 buffer per context + */ +#define V4L2_CID_VPE_BUFS_PER_JOB (V4L2_CID_USER_TI_VPE_BASE + 0) + +static int vpe_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct vpe_ctx *ctx = + container_of(ctrl->handler, struct vpe_ctx, hdl); + + switch (ctrl->id) { + case V4L2_CID_VPE_BUFS_PER_JOB: + ctx->bufs_per_job = ctrl->val; + break; + + default: + vpe_err(ctx->dev, "Invalid control\n"); + return -EINVAL; + } + + return 0; +} + +static const struct v4l2_ctrl_ops vpe_ctrl_ops = { + .s_ctrl = vpe_s_ctrl, +}; + +static const struct v4l2_ioctl_ops vpe_ioctl_ops = { + .vidioc_querycap = vpe_querycap, + + .vidioc_enum_fmt_vid_cap_mplane = vpe_enum_fmt, + .vidioc_g_fmt_vid_cap_mplane = vpe_g_fmt, + .vidioc_try_fmt_vid_cap_mplane = vpe_try_fmt, + .vidioc_s_fmt_vid_cap_mplane = vpe_s_fmt, + + .vidioc_enum_fmt_vid_out_mplane = vpe_enum_fmt, + .vidioc_g_fmt_vid_out_mplane = vpe_g_fmt, + .vidioc_try_fmt_vid_out_mplane = vpe_try_fmt, + .vidioc_s_fmt_vid_out_mplane = vpe_s_fmt, + + .vidioc_reqbufs = vpe_reqbufs, + .vidioc_querybuf = vpe_querybuf, + + .vidioc_qbuf = vpe_qbuf, + .vidioc_dqbuf = vpe_dqbuf, + + .vidioc_streamon = vpe_streamon, + .vidioc_streamoff = vpe_streamoff, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* + * Queue operations + */ +static int vpe_queue_setup(struct vb2_queue *vq, + const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) +{ + int i; + struct vpe_ctx *ctx = vb2_get_drv_priv(vq); + struct vpe_q_data *q_data; + + q_data = get_q_data(ctx, vq->type); + + *nplanes = q_data->fmt->coplanar ? 2 : 1; + + for (i = 0; i < *nplanes; i++) { + sizes[i] = q_data->sizeimage[i]; + alloc_ctxs[i] = ctx->dev->alloc_ctx; + } + + vpe_dbg(ctx->dev, "get %d buffer(s) of size %d", *nbuffers, + sizes[VPE_LUMA]); + if (q_data->fmt->coplanar) + vpe_dbg(ctx->dev, " and %d\n", sizes[VPE_CHROMA]); + + return 0; +} + +static int vpe_buf_prepare(struct vb2_buffer *vb) +{ + struct vpe_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct vpe_q_data *q_data; + int i, num_planes; + + vpe_dbg(ctx->dev, "type: %d\n", vb->vb2_queue->type); + + q_data = get_q_data(ctx, vb->vb2_queue->type); + num_planes = q_data->fmt->coplanar ? 2 : 1; + + for (i = 0; i < num_planes; i++) { + if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) { + vpe_err(ctx->dev, + "data will not fit into plane (%lu < %lu)\n", + vb2_plane_size(vb, i), + (long) q_data->sizeimage[i]); + return -EINVAL; + } + } + + for (i = 0; i < num_planes; i++) + vb2_set_plane_payload(vb, i, q_data->sizeimage[i]); + + return 0; +} + +static void vpe_buf_queue(struct vb2_buffer *vb) +{ + struct vpe_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); +} + +static void vpe_wait_prepare(struct vb2_queue *q) +{ + struct vpe_ctx *ctx = vb2_get_drv_priv(q); + vpe_unlock(ctx); +} + +static void vpe_wait_finish(struct vb2_queue *q) +{ + struct vpe_ctx *ctx = vb2_get_drv_priv(q); + vpe_lock(ctx); +} + +static struct vb2_ops vpe_qops = { + .queue_setup = vpe_queue_setup, + .buf_prepare = vpe_buf_prepare, + .buf_queue = vpe_buf_queue, + .wait_prepare = vpe_wait_prepare, + .wait_finish = vpe_wait_finish, +}; + +static int queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct vpe_ctx *ctx = priv; + int ret; + + memset(src_vq, 0, sizeof(*src_vq)); + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + src_vq->io_modes = VB2_MMAP; + src_vq->drv_priv = ctx; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + src_vq->ops = &vpe_qops; + src_vq->mem_ops = &vb2_dma_contig_memops; + src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; + + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + memset(dst_vq, 0, sizeof(*dst_vq)); + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + dst_vq->io_modes = VB2_MMAP; + dst_vq->drv_priv = ctx; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + dst_vq->ops = &vpe_qops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY; + + return vb2_queue_init(dst_vq); +} + +static const struct v4l2_ctrl_config vpe_bufs_per_job = { + .ops = &vpe_ctrl_ops, + .id = V4L2_CID_VPE_BUFS_PER_JOB, + .name = "Buffers Per Transaction", + .type = V4L2_CTRL_TYPE_INTEGER, + .def = VPE_DEF_BUFS_PER_JOB, + .min = 1, + .max = VIDEO_MAX_FRAME, + .step = 1, +}; + +/* + * File operations + */ +static int vpe_open(struct file *file) +{ + struct vpe_dev *dev = video_drvdata(file); + struct vpe_ctx *ctx = NULL; + struct vpe_q_data *s_q_data; + struct v4l2_ctrl_handler *hdl; + int ret; + + vpe_dbg(dev, "vpe_open\n"); + + if (!dev->vpdma->ready) { + vpe_err(dev, "vpdma firmware not loaded\n"); + return -ENODEV; + } + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->dev = dev; + + if (mutex_lock_interruptible(&dev->dev_mutex)) { + ret = -ERESTARTSYS; + goto free_ctx; + } + + ret = vpdma_create_desc_list(&ctx->desc_list, VPE_DESC_LIST_SIZE, + VPDMA_LIST_TYPE_NORMAL); + if (ret != 0) + goto unlock; + + ret = vpdma_alloc_desc_buf(&ctx->mmr_adb, sizeof(struct vpe_mmr_adb)); + if (ret != 0) + goto free_desc_list; + + init_adb_hdrs(ctx); + + v4l2_fh_init(&ctx->fh, video_devdata(file)); + file->private_data = &ctx->fh; + + hdl = &ctx->hdl; + v4l2_ctrl_handler_init(hdl, 1); + v4l2_ctrl_new_custom(hdl, &vpe_bufs_per_job, NULL); + if (hdl->error) { + ret = hdl->error; + goto exit_fh; + } + ctx->fh.ctrl_handler = hdl; + v4l2_ctrl_handler_setup(hdl); + + s_q_data = &ctx->q_data[Q_DATA_SRC]; + s_q_data->fmt = &vpe_formats[2]; + s_q_data->width = 1920; + s_q_data->height = 1080; + s_q_data->sizeimage[VPE_LUMA] = (s_q_data->width * s_q_data->height * + s_q_data->fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3; + s_q_data->colorspace = V4L2_COLORSPACE_SMPTE240M; + s_q_data->field = V4L2_FIELD_NONE; + s_q_data->c_rect.left = 0; + s_q_data->c_rect.top = 0; + s_q_data->c_rect.width = s_q_data->width; + s_q_data->c_rect.height = s_q_data->height; + s_q_data->flags = 0; + + ctx->q_data[Q_DATA_DST] = *s_q_data; + + set_dei_shadow_registers(ctx); + set_src_registers(ctx); + set_dst_registers(ctx); + ret = set_srcdst_params(ctx); + if (ret) + goto exit_fh; + + ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); + + if (IS_ERR(ctx->m2m_ctx)) { + ret = PTR_ERR(ctx->m2m_ctx); + goto exit_fh; + } + + v4l2_fh_add(&ctx->fh); + + /* + * for now, just report the creation of the first instance, we can later + * optimize the driver to enable or disable clocks when the first + * instance is created or the last instance released + */ + if (atomic_inc_return(&dev->num_instances) == 1) + vpe_dbg(dev, "first instance created\n"); + + ctx->bufs_per_job = VPE_DEF_BUFS_PER_JOB; + + ctx->load_mmrs = true; + + vpe_dbg(dev, "created instance %p, m2m_ctx: %p\n", + ctx, ctx->m2m_ctx); + + mutex_unlock(&dev->dev_mutex); + + return 0; +exit_fh: + v4l2_ctrl_handler_free(hdl); + v4l2_fh_exit(&ctx->fh); + vpdma_free_desc_buf(&ctx->mmr_adb); +free_desc_list: + vpdma_free_desc_list(&ctx->desc_list); +unlock: + mutex_unlock(&dev->dev_mutex); +free_ctx: + kfree(ctx); + return ret; +} + +static int vpe_release(struct file *file) +{ + struct vpe_dev *dev = video_drvdata(file); + struct vpe_ctx *ctx = file2ctx(file); + + vpe_dbg(dev, "releasing instance %p\n", ctx); + + mutex_lock(&dev->dev_mutex); + free_vbs(ctx); + free_mv_buffers(ctx); + vpdma_free_desc_list(&ctx->desc_list); + vpdma_free_desc_buf(&ctx->mmr_adb); + + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + v4l2_ctrl_handler_free(&ctx->hdl); + v4l2_m2m_ctx_release(ctx->m2m_ctx); + + kfree(ctx); + + /* + * for now, just report the release of the last instance, we can later + * optimize the driver to enable or disable clocks when the first + * instance is created or the last instance released + */ + if (atomic_dec_return(&dev->num_instances) == 0) + vpe_dbg(dev, "last instance released\n"); + + mutex_unlock(&dev->dev_mutex); + + return 0; +} + +static unsigned int vpe_poll(struct file *file, + struct poll_table_struct *wait) +{ + struct vpe_ctx *ctx = file2ctx(file); + struct vpe_dev *dev = ctx->dev; + int ret; + + mutex_lock(&dev->dev_mutex); + ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); + mutex_unlock(&dev->dev_mutex); + return ret; +} + +static int vpe_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct vpe_ctx *ctx = file2ctx(file); + struct vpe_dev *dev = ctx->dev; + int ret; + + if (mutex_lock_interruptible(&dev->dev_mutex)) + return -ERESTARTSYS; + ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); + mutex_unlock(&dev->dev_mutex); + return ret; +} + +static const struct v4l2_file_operations vpe_fops = { + .owner = THIS_MODULE, + .open = vpe_open, + .release = vpe_release, + .poll = vpe_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vpe_mmap, +}; + +static struct video_device vpe_videodev = { + .name = VPE_MODULE_NAME, + .fops = &vpe_fops, + .ioctl_ops = &vpe_ioctl_ops, + .minor = -1, + .release = video_device_release, + .vfl_dir = VFL_DIR_M2M, +}; + +static struct v4l2_m2m_ops m2m_ops = { + .device_run = device_run, + .job_ready = job_ready, + .job_abort = job_abort, + .lock = vpe_lock, + .unlock = vpe_unlock, +}; + +static int vpe_runtime_get(struct platform_device *pdev) +{ + int r; + + dev_dbg(&pdev->dev, "vpe_runtime_get\n"); + + r = pm_runtime_get_sync(&pdev->dev); + WARN_ON(r < 0); + return r < 0 ? r : 0; +} + +static void vpe_runtime_put(struct platform_device *pdev) +{ + + int r; + + dev_dbg(&pdev->dev, "vpe_runtime_put\n"); + + r = pm_runtime_put_sync(&pdev->dev); + WARN_ON(r < 0 && r != -ENOSYS); +} + +static int vpe_probe(struct platform_device *pdev) +{ + struct vpe_dev *dev; + struct video_device *vfd; + struct resource *res; + int ret, irq, func; + + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + spin_lock_init(&dev->lock); + + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); + if (ret) + return ret; + + atomic_set(&dev->num_instances, 0); + mutex_init(&dev->dev_mutex); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpe_top"); + /* + * HACK: we get resource info from device tree in the form of a list of + * VPE sub blocks, the driver currently uses only the base of vpe_top + * for register access, the driver should be changed later to access + * registers based on the sub block base addresses + */ + dev->base = devm_ioremap(&pdev->dev, res->start, SZ_32K); + if (IS_ERR(dev->base)) { + ret = PTR_ERR(dev->base); + goto v4l2_dev_unreg; + } + + irq = platform_get_irq(pdev, 0); + ret = devm_request_irq(&pdev->dev, irq, vpe_irq, 0, VPE_MODULE_NAME, + dev); + if (ret) + goto v4l2_dev_unreg; + + platform_set_drvdata(pdev, dev); + + dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); + if (IS_ERR(dev->alloc_ctx)) { + vpe_err(dev, "Failed to alloc vb2 context\n"); + ret = PTR_ERR(dev->alloc_ctx); + goto v4l2_dev_unreg; + } + + dev->m2m_dev = v4l2_m2m_init(&m2m_ops); + if (IS_ERR(dev->m2m_dev)) { + vpe_err(dev, "Failed to init mem2mem device\n"); + ret = PTR_ERR(dev->m2m_dev); + goto rel_ctx; + } + + pm_runtime_enable(&pdev->dev); + + ret = vpe_runtime_get(pdev); + if (ret) + goto rel_m2m; + + /* Perform clk enable followed by reset */ + vpe_set_clock_enable(dev, 1); + + vpe_top_reset(dev); + + func = read_field_reg(dev, VPE_PID, VPE_PID_FUNC_MASK, + VPE_PID_FUNC_SHIFT); + vpe_dbg(dev, "VPE PID function %x\n", func); + + vpe_top_vpdma_reset(dev); + + dev->vpdma = vpdma_create(pdev); + if (IS_ERR(dev->vpdma)) + goto runtime_put; + + vfd = &dev->vfd; + *vfd = vpe_videodev; + vfd->lock = &dev->dev_mutex; + vfd->v4l2_dev = &dev->v4l2_dev; + + ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); + if (ret) { + vpe_err(dev, "Failed to register video device\n"); + goto runtime_put; + } + + video_set_drvdata(vfd, dev); + snprintf(vfd->name, sizeof(vfd->name), "%s", vpe_videodev.name); + dev_info(dev->v4l2_dev.dev, "Device registered as /dev/video%d\n", + vfd->num); + + return 0; + +runtime_put: + vpe_runtime_put(pdev); +rel_m2m: + pm_runtime_disable(&pdev->dev); + v4l2_m2m_release(dev->m2m_dev); +rel_ctx: + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); +v4l2_dev_unreg: + v4l2_device_unregister(&dev->v4l2_dev); + + return ret; +} + +static int vpe_remove(struct platform_device *pdev) +{ + struct vpe_dev *dev = + (struct vpe_dev *) platform_get_drvdata(pdev); + + v4l2_info(&dev->v4l2_dev, "Removing " VPE_MODULE_NAME); + + v4l2_m2m_release(dev->m2m_dev); + video_unregister_device(&dev->vfd); + v4l2_device_unregister(&dev->v4l2_dev); + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); + + vpe_set_clock_enable(dev, 0); + vpe_runtime_put(pdev); + pm_runtime_disable(&pdev->dev); + + return 0; +} + +#if defined(CONFIG_OF) +static const struct of_device_id vpe_of_match[] = { + { + .compatible = "ti,vpe", + }, + {}, +}; +#else +#define vpe_of_match NULL +#endif + +static struct platform_driver vpe_pdrv = { + .probe = vpe_probe, + .remove = vpe_remove, + .driver = { + .name = VPE_MODULE_NAME, + .owner = THIS_MODULE, + .of_match_table = vpe_of_match, + }, +}; + +static void __exit vpe_exit(void) +{ + platform_driver_unregister(&vpe_pdrv); +} + +static int __init vpe_init(void) +{ + return platform_driver_register(&vpe_pdrv); +} + +module_init(vpe_init); +module_exit(vpe_exit); + +MODULE_DESCRIPTION("TI VPE driver"); +MODULE_AUTHOR("Dale Farnsworth, <dale@farnsworth.org>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/platform/ti-vpe/vpe_regs.h b/drivers/media/platform/ti-vpe/vpe_regs.h new file mode 100644 index 000000000000..ed214e828398 --- /dev/null +++ b/drivers/media/platform/ti-vpe/vpe_regs.h @@ -0,0 +1,496 @@ +/* + * Copyright (c) 2013 Texas Instruments Inc. + * + * David Griego, <dagriego@biglakesoftware.com> + * Dale Farnsworth, <dale@farnsworth.org> + * Archit Taneja, <archit@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#ifndef __TI_VPE_REGS_H +#define __TI_VPE_REGS_H + +/* VPE register offsets and field selectors */ + +/* VPE top level regs */ +#define VPE_PID 0x0000 +#define VPE_PID_MINOR_MASK 0x3f +#define VPE_PID_MINOR_SHIFT 0 +#define VPE_PID_CUSTOM_MASK 0x03 +#define VPE_PID_CUSTOM_SHIFT 6 +#define VPE_PID_MAJOR_MASK 0x07 +#define VPE_PID_MAJOR_SHIFT 8 +#define VPE_PID_RTL_MASK 0x1f +#define VPE_PID_RTL_SHIFT 11 +#define VPE_PID_FUNC_MASK 0xfff +#define VPE_PID_FUNC_SHIFT 16 +#define VPE_PID_SCHEME_MASK 0x03 +#define VPE_PID_SCHEME_SHIFT 30 + +#define VPE_SYSCONFIG 0x0010 +#define VPE_SYSCONFIG_IDLE_MASK 0x03 +#define VPE_SYSCONFIG_IDLE_SHIFT 2 +#define VPE_SYSCONFIG_STANDBY_MASK 0x03 +#define VPE_SYSCONFIG_STANDBY_SHIFT 4 +#define VPE_FORCE_IDLE_MODE 0 +#define VPE_NO_IDLE_MODE 1 +#define VPE_SMART_IDLE_MODE 2 +#define VPE_SMART_IDLE_WAKEUP_MODE 3 +#define VPE_FORCE_STANDBY_MODE 0 +#define VPE_NO_STANDBY_MODE 1 +#define VPE_SMART_STANDBY_MODE 2 +#define VPE_SMART_STANDBY_WAKEUP_MODE 3 + +#define VPE_INT0_STATUS0_RAW_SET 0x0020 +#define VPE_INT0_STATUS0_RAW VPE_INT0_STATUS0_RAW_SET +#define VPE_INT0_STATUS0_CLR 0x0028 +#define VPE_INT0_STATUS0 VPE_INT0_STATUS0_CLR +#define VPE_INT0_ENABLE0_SET 0x0030 +#define VPE_INT0_ENABLE0 VPE_INT0_ENABLE0_SET +#define VPE_INT0_ENABLE0_CLR 0x0038 +#define VPE_INT0_LIST0_COMPLETE (1 << 0) +#define VPE_INT0_LIST0_NOTIFY (1 << 1) +#define VPE_INT0_LIST1_COMPLETE (1 << 2) +#define VPE_INT0_LIST1_NOTIFY (1 << 3) +#define VPE_INT0_LIST2_COMPLETE (1 << 4) +#define VPE_INT0_LIST2_NOTIFY (1 << 5) +#define VPE_INT0_LIST3_COMPLETE (1 << 6) +#define VPE_INT0_LIST3_NOTIFY (1 << 7) +#define VPE_INT0_LIST4_COMPLETE (1 << 8) +#define VPE_INT0_LIST4_NOTIFY (1 << 9) +#define VPE_INT0_LIST5_COMPLETE (1 << 10) +#define VPE_INT0_LIST5_NOTIFY (1 << 11) +#define VPE_INT0_LIST6_COMPLETE (1 << 12) +#define VPE_INT0_LIST6_NOTIFY (1 << 13) +#define VPE_INT0_LIST7_COMPLETE (1 << 14) +#define VPE_INT0_LIST7_NOTIFY (1 << 15) +#define VPE_INT0_DESCRIPTOR (1 << 16) +#define VPE_DEI_FMD_INT (1 << 18) + +#define VPE_INT0_STATUS1_RAW_SET 0x0024 +#define VPE_INT0_STATUS1_RAW VPE_INT0_STATUS1_RAW_SET +#define VPE_INT0_STATUS1_CLR 0x002c +#define VPE_INT0_STATUS1 VPE_INT0_STATUS1_CLR +#define VPE_INT0_ENABLE1_SET 0x0034 +#define VPE_INT0_ENABLE1 VPE_INT0_ENABLE1_SET +#define VPE_INT0_ENABLE1_CLR 0x003c +#define VPE_INT0_CHANNEL_GROUP0 (1 << 0) +#define VPE_INT0_CHANNEL_GROUP1 (1 << 1) +#define VPE_INT0_CHANNEL_GROUP2 (1 << 2) +#define VPE_INT0_CHANNEL_GROUP3 (1 << 3) +#define VPE_INT0_CHANNEL_GROUP4 (1 << 4) +#define VPE_INT0_CHANNEL_GROUP5 (1 << 5) +#define VPE_INT0_CLIENT (1 << 7) +#define VPE_DEI_ERROR_INT (1 << 16) +#define VPE_DS1_UV_ERROR_INT (1 << 22) + +#define VPE_INTC_EOI 0x00a0 + +#define VPE_CLK_ENABLE 0x0100 +#define VPE_VPEDMA_CLK_ENABLE (1 << 0) +#define VPE_DATA_PATH_CLK_ENABLE (1 << 1) + +#define VPE_CLK_RESET 0x0104 +#define VPE_VPDMA_CLK_RESET_MASK 0x1 +#define VPE_VPDMA_CLK_RESET_SHIFT 0 +#define VPE_DATA_PATH_CLK_RESET_MASK 0x1 +#define VPE_DATA_PATH_CLK_RESET_SHIFT 1 +#define VPE_MAIN_RESET_MASK 0x1 +#define VPE_MAIN_RESET_SHIFT 31 + +#define VPE_CLK_FORMAT_SELECT 0x010c +#define VPE_CSC_SRC_SELECT_MASK 0x03 +#define VPE_CSC_SRC_SELECT_SHIFT 0 +#define VPE_RGB_OUT_SELECT (1 << 8) +#define VPE_DS_SRC_SELECT_MASK 0x07 +#define VPE_DS_SRC_SELECT_SHIFT 9 +#define VPE_DS_BYPASS (1 << 16) +#define VPE_COLOR_SEPARATE_422 (1 << 18) + +#define VPE_DS_SRC_DEI_SCALER (5 << VPE_DS_SRC_SELECT_SHIFT) +#define VPE_CSC_SRC_DEI_SCALER (3 << VPE_CSC_SRC_SELECT_SHIFT) + +#define VPE_CLK_RANGE_MAP 0x011c +#define VPE_RANGE_RANGE_MAP_Y_MASK 0x07 +#define VPE_RANGE_RANGE_MAP_Y_SHIFT 0 +#define VPE_RANGE_RANGE_MAP_UV_MASK 0x07 +#define VPE_RANGE_RANGE_MAP_UV_SHIFT 3 +#define VPE_RANGE_MAP_ON (1 << 6) +#define VPE_RANGE_REDUCTION_ON (1 << 28) + +/* VPE chrominance upsampler regs */ +#define VPE_US1_R0 0x0304 +#define VPE_US2_R0 0x0404 +#define VPE_US3_R0 0x0504 +#define VPE_US_C1_MASK 0x3fff +#define VPE_US_C1_SHIFT 2 +#define VPE_US_C0_MASK 0x3fff +#define VPE_US_C0_SHIFT 18 +#define VPE_US_MODE_MASK 0x03 +#define VPE_US_MODE_SHIFT 16 +#define VPE_ANCHOR_FID0_C1_MASK 0x3fff +#define VPE_ANCHOR_FID0_C1_SHIFT 2 +#define VPE_ANCHOR_FID0_C0_MASK 0x3fff +#define VPE_ANCHOR_FID0_C0_SHIFT 18 + +#define VPE_US1_R1 0x0308 +#define VPE_US2_R1 0x0408 +#define VPE_US3_R1 0x0508 +#define VPE_ANCHOR_FID0_C3_MASK 0x3fff +#define VPE_ANCHOR_FID0_C3_SHIFT 2 +#define VPE_ANCHOR_FID0_C2_MASK 0x3fff +#define VPE_ANCHOR_FID0_C2_SHIFT 18 + +#define VPE_US1_R2 0x030c +#define VPE_US2_R2 0x040c +#define VPE_US3_R2 0x050c +#define VPE_INTERP_FID0_C1_MASK 0x3fff +#define VPE_INTERP_FID0_C1_SHIFT 2 +#define VPE_INTERP_FID0_C0_MASK 0x3fff +#define VPE_INTERP_FID0_C0_SHIFT 18 + +#define VPE_US1_R3 0x0310 +#define VPE_US2_R3 0x0410 +#define VPE_US3_R3 0x0510 +#define VPE_INTERP_FID0_C3_MASK 0x3fff +#define VPE_INTERP_FID0_C3_SHIFT 2 +#define VPE_INTERP_FID0_C2_MASK 0x3fff +#define VPE_INTERP_FID0_C2_SHIFT 18 + +#define VPE_US1_R4 0x0314 +#define VPE_US2_R4 0x0414 +#define VPE_US3_R4 0x0514 +#define VPE_ANCHOR_FID1_C1_MASK 0x3fff +#define VPE_ANCHOR_FID1_C1_SHIFT 2 +#define VPE_ANCHOR_FID1_C0_MASK 0x3fff +#define VPE_ANCHOR_FID1_C0_SHIFT 18 + +#define VPE_US1_R5 0x0318 +#define VPE_US2_R5 0x0418 +#define VPE_US3_R5 0x0518 +#define VPE_ANCHOR_FID1_C3_MASK 0x3fff +#define VPE_ANCHOR_FID1_C3_SHIFT 2 +#define VPE_ANCHOR_FID1_C2_MASK 0x3fff +#define VPE_ANCHOR_FID1_C2_SHIFT 18 + +#define VPE_US1_R6 0x031c +#define VPE_US2_R6 0x041c +#define VPE_US3_R6 0x051c +#define VPE_INTERP_FID1_C1_MASK 0x3fff +#define VPE_INTERP_FID1_C1_SHIFT 2 +#define VPE_INTERP_FID1_C0_MASK 0x3fff +#define VPE_INTERP_FID1_C0_SHIFT 18 + +#define VPE_US1_R7 0x0320 +#define VPE_US2_R7 0x0420 +#define VPE_US3_R7 0x0520 +#define VPE_INTERP_FID0_C3_MASK 0x3fff +#define VPE_INTERP_FID0_C3_SHIFT 2 +#define VPE_INTERP_FID0_C2_MASK 0x3fff +#define VPE_INTERP_FID0_C2_SHIFT 18 + +/* VPE de-interlacer regs */ +#define VPE_DEI_FRAME_SIZE 0x0600 +#define VPE_DEI_WIDTH_MASK 0x07ff +#define VPE_DEI_WIDTH_SHIFT 0 +#define VPE_DEI_HEIGHT_MASK 0x07ff +#define VPE_DEI_HEIGHT_SHIFT 16 +#define VPE_DEI_INTERLACE_BYPASS (1 << 29) +#define VPE_DEI_FIELD_FLUSH (1 << 30) +#define VPE_DEI_PROGRESSIVE (1 << 31) + +#define VPE_MDT_BYPASS 0x0604 +#define VPE_MDT_TEMPMAX_BYPASS (1 << 0) +#define VPE_MDT_SPATMAX_BYPASS (1 << 1) + +#define VPE_MDT_SF_THRESHOLD 0x0608 +#define VPE_MDT_SF_SC_THR1_MASK 0xff +#define VPE_MDT_SF_SC_THR1_SHIFT 0 +#define VPE_MDT_SF_SC_THR2_MASK 0xff +#define VPE_MDT_SF_SC_THR2_SHIFT 0 +#define VPE_MDT_SF_SC_THR3_MASK 0xff +#define VPE_MDT_SF_SC_THR3_SHIFT 0 + +#define VPE_EDI_CONFIG 0x060c +#define VPE_EDI_INP_MODE_MASK 0x03 +#define VPE_EDI_INP_MODE_SHIFT 0 +#define VPE_EDI_ENABLE_3D (1 << 2) +#define VPE_EDI_ENABLE_CHROMA_3D (1 << 3) +#define VPE_EDI_CHROMA3D_COR_THR_MASK 0xff +#define VPE_EDI_CHROMA3D_COR_THR_SHIFT 8 +#define VPE_EDI_DIR_COR_LOWER_THR_MASK 0xff +#define VPE_EDI_DIR_COR_LOWER_THR_SHIFT 16 +#define VPE_EDI_COR_SCALE_FACTOR_MASK 0xff +#define VPE_EDI_COR_SCALE_FACTOR_SHIFT 23 + +#define VPE_DEI_EDI_LUT_R0 0x0610 +#define VPE_EDI_LUT0_MASK 0x1f +#define VPE_EDI_LUT0_SHIFT 0 +#define VPE_EDI_LUT1_MASK 0x1f +#define VPE_EDI_LUT1_SHIFT 8 +#define VPE_EDI_LUT2_MASK 0x1f +#define VPE_EDI_LUT2_SHIFT 16 +#define VPE_EDI_LUT3_MASK 0x1f +#define VPE_EDI_LUT3_SHIFT 24 + +#define VPE_DEI_EDI_LUT_R1 0x0614 +#define VPE_EDI_LUT0_MASK 0x1f +#define VPE_EDI_LUT0_SHIFT 0 +#define VPE_EDI_LUT1_MASK 0x1f +#define VPE_EDI_LUT1_SHIFT 8 +#define VPE_EDI_LUT2_MASK 0x1f +#define VPE_EDI_LUT2_SHIFT 16 +#define VPE_EDI_LUT3_MASK 0x1f +#define VPE_EDI_LUT3_SHIFT 24 + +#define VPE_DEI_EDI_LUT_R2 0x0618 +#define VPE_EDI_LUT4_MASK 0x1f +#define VPE_EDI_LUT4_SHIFT 0 +#define VPE_EDI_LUT5_MASK 0x1f +#define VPE_EDI_LUT5_SHIFT 8 +#define VPE_EDI_LUT6_MASK 0x1f +#define VPE_EDI_LUT6_SHIFT 16 +#define VPE_EDI_LUT7_MASK 0x1f +#define VPE_EDI_LUT7_SHIFT 24 + +#define VPE_DEI_EDI_LUT_R3 0x061c +#define VPE_EDI_LUT8_MASK 0x1f +#define VPE_EDI_LUT8_SHIFT 0 +#define VPE_EDI_LUT9_MASK 0x1f +#define VPE_EDI_LUT9_SHIFT 8 +#define VPE_EDI_LUT10_MASK 0x1f +#define VPE_EDI_LUT10_SHIFT 16 +#define VPE_EDI_LUT11_MASK 0x1f +#define VPE_EDI_LUT11_SHIFT 24 + +#define VPE_DEI_FMD_WINDOW_R0 0x0620 +#define VPE_FMD_WINDOW_MINX_MASK 0x07ff +#define VPE_FMD_WINDOW_MINX_SHIFT 0 +#define VPE_FMD_WINDOW_MAXX_MASK 0x07ff +#define VPE_FMD_WINDOW_MAXX_SHIFT 16 +#define VPE_FMD_WINDOW_ENABLE (1 << 31) + +#define VPE_DEI_FMD_WINDOW_R1 0x0624 +#define VPE_FMD_WINDOW_MINY_MASK 0x07ff +#define VPE_FMD_WINDOW_MINY_SHIFT 0 +#define VPE_FMD_WINDOW_MAXY_MASK 0x07ff +#define VPE_FMD_WINDOW_MAXY_SHIFT 16 + +#define VPE_DEI_FMD_CONTROL_R0 0x0628 +#define VPE_FMD_ENABLE (1 << 0) +#define VPE_FMD_LOCK (1 << 1) +#define VPE_FMD_JAM_DIR (1 << 2) +#define VPE_FMD_BED_ENABLE (1 << 3) +#define VPE_FMD_CAF_FIELD_THR_MASK 0xff +#define VPE_FMD_CAF_FIELD_THR_SHIFT 16 +#define VPE_FMD_CAF_LINE_THR_MASK 0xff +#define VPE_FMD_CAF_LINE_THR_SHIFT 24 + +#define VPE_DEI_FMD_CONTROL_R1 0x062c +#define VPE_FMD_CAF_THR_MASK 0x000fffff +#define VPE_FMD_CAF_THR_SHIFT 0 + +#define VPE_DEI_FMD_STATUS_R0 0x0630 +#define VPE_FMD_CAF_MASK 0x000fffff +#define VPE_FMD_CAF_SHIFT 0 +#define VPE_FMD_RESET (1 << 24) + +#define VPE_DEI_FMD_STATUS_R1 0x0634 +#define VPE_FMD_FIELD_DIFF_MASK 0x0fffffff +#define VPE_FMD_FIELD_DIFF_SHIFT 0 + +#define VPE_DEI_FMD_STATUS_R2 0x0638 +#define VPE_FMD_FRAME_DIFF_MASK 0x000fffff +#define VPE_FMD_FRAME_DIFF_SHIFT 0 + +/* VPE scaler regs */ +#define VPE_SC_MP_SC0 0x0700 +#define VPE_INTERLACE_O (1 << 0) +#define VPE_LINEAR (1 << 1) +#define VPE_SC_BYPASS (1 << 2) +#define VPE_INVT_FID (1 << 3) +#define VPE_USE_RAV (1 << 4) +#define VPE_ENABLE_EV (1 << 5) +#define VPE_AUTO_HS (1 << 6) +#define VPE_DCM_2X (1 << 7) +#define VPE_DCM_4X (1 << 8) +#define VPE_HP_BYPASS (1 << 9) +#define VPE_INTERLACE_I (1 << 10) +#define VPE_ENABLE_SIN2_VER_INTP (1 << 11) +#define VPE_Y_PK_EN (1 << 14) +#define VPE_TRIM (1 << 15) +#define VPE_SELFGEN_FID (1 << 16) + +#define VPE_SC_MP_SC1 0x0704 +#define VPE_ROW_ACC_INC_MASK 0x07ffffff +#define VPE_ROW_ACC_INC_SHIFT 0 + +#define VPE_SC_MP_SC2 0x0708 +#define VPE_ROW_ACC_OFFSET_MASK 0x0fffffff +#define VPE_ROW_ACC_OFFSET_SHIFT 0 + +#define VPE_SC_MP_SC3 0x070c +#define VPE_ROW_ACC_OFFSET_B_MASK 0x0fffffff +#define VPE_ROW_ACC_OFFSET_B_SHIFT 0 + +#define VPE_SC_MP_SC4 0x0710 +#define VPE_TAR_H_MASK 0x07ff +#define VPE_TAR_H_SHIFT 0 +#define VPE_TAR_W_MASK 0x07ff +#define VPE_TAR_W_SHIFT 12 +#define VPE_LIN_ACC_INC_U_MASK 0x07 +#define VPE_LIN_ACC_INC_U_SHIFT 24 +#define VPE_NLIN_ACC_INIT_U_MASK 0x07 +#define VPE_NLIN_ACC_INIT_U_SHIFT 28 + +#define VPE_SC_MP_SC5 0x0714 +#define VPE_SRC_H_MASK 0x07ff +#define VPE_SRC_H_SHIFT 0 +#define VPE_SRC_W_MASK 0x07ff +#define VPE_SRC_W_SHIFT 12 +#define VPE_NLIN_ACC_INC_U_MASK 0x07 +#define VPE_NLIN_ACC_INC_U_SHIFT 24 + +#define VPE_SC_MP_SC6 0x0718 +#define VPE_ROW_ACC_INIT_RAV_MASK 0x03ff +#define VPE_ROW_ACC_INIT_RAV_SHIFT 0 +#define VPE_ROW_ACC_INIT_RAV_B_MASK 0x03ff +#define VPE_ROW_ACC_INIT_RAV_B_SHIFT 10 + +#define VPE_SC_MP_SC8 0x0720 +#define VPE_NLIN_LEFT_MASK 0x07ff +#define VPE_NLIN_LEFT_SHIFT 0 +#define VPE_NLIN_RIGHT_MASK 0x07ff +#define VPE_NLIN_RIGHT_SHIFT 12 + +#define VPE_SC_MP_SC9 0x0724 +#define VPE_LIN_ACC_INC VPE_SC_MP_SC9 + +#define VPE_SC_MP_SC10 0x0728 +#define VPE_NLIN_ACC_INIT VPE_SC_MP_SC10 + +#define VPE_SC_MP_SC11 0x072c +#define VPE_NLIN_ACC_INC VPE_SC_MP_SC11 + +#define VPE_SC_MP_SC12 0x0730 +#define VPE_COL_ACC_OFFSET_MASK 0x01ffffff +#define VPE_COL_ACC_OFFSET_SHIFT 0 + +#define VPE_SC_MP_SC13 0x0734 +#define VPE_SC_FACTOR_RAV_MASK 0x03ff +#define VPE_SC_FACTOR_RAV_SHIFT 0 +#define VPE_CHROMA_INTP_THR_MASK 0x03ff +#define VPE_CHROMA_INTP_THR_SHIFT 12 +#define VPE_DELTA_CHROMA_THR_MASK 0x0f +#define VPE_DELTA_CHROMA_THR_SHIFT 24 + +#define VPE_SC_MP_SC17 0x0744 +#define VPE_EV_THR_MASK 0x03ff +#define VPE_EV_THR_SHIFT 12 +#define VPE_DELTA_LUMA_THR_MASK 0x0f +#define VPE_DELTA_LUMA_THR_SHIFT 24 +#define VPE_DELTA_EV_THR_MASK 0x0f +#define VPE_DELTA_EV_THR_SHIFT 28 + +#define VPE_SC_MP_SC18 0x0748 +#define VPE_HS_FACTOR_MASK 0x03ff +#define VPE_HS_FACTOR_SHIFT 0 +#define VPE_CONF_DEFAULT_MASK 0x01ff +#define VPE_CONF_DEFAULT_SHIFT 16 + +#define VPE_SC_MP_SC19 0x074c +#define VPE_HPF_COEFF0_MASK 0xff +#define VPE_HPF_COEFF0_SHIFT 0 +#define VPE_HPF_COEFF1_MASK 0xff +#define VPE_HPF_COEFF1_SHIFT 8 +#define VPE_HPF_COEFF2_MASK 0xff +#define VPE_HPF_COEFF2_SHIFT 16 +#define VPE_HPF_COEFF3_MASK 0xff +#define VPE_HPF_COEFF3_SHIFT 23 + +#define VPE_SC_MP_SC20 0x0750 +#define VPE_HPF_COEFF4_MASK 0xff +#define VPE_HPF_COEFF4_SHIFT 0 +#define VPE_HPF_COEFF5_MASK 0xff +#define VPE_HPF_COEFF5_SHIFT 8 +#define VPE_HPF_NORM_SHIFT_MASK 0x07 +#define VPE_HPF_NORM_SHIFT_SHIFT 16 +#define VPE_NL_LIMIT_MASK 0x1ff +#define VPE_NL_LIMIT_SHIFT 20 + +#define VPE_SC_MP_SC21 0x0754 +#define VPE_NL_LO_THR_MASK 0x01ff +#define VPE_NL_LO_THR_SHIFT 0 +#define VPE_NL_LO_SLOPE_MASK 0xff +#define VPE_NL_LO_SLOPE_SHIFT 16 + +#define VPE_SC_MP_SC22 0x0758 +#define VPE_NL_HI_THR_MASK 0x01ff +#define VPE_NL_HI_THR_SHIFT 0 +#define VPE_NL_HI_SLOPE_SH_MASK 0x07 +#define VPE_NL_HI_SLOPE_SH_SHIFT 16 + +#define VPE_SC_MP_SC23 0x075c +#define VPE_GRADIENT_THR_MASK 0x07ff +#define VPE_GRADIENT_THR_SHIFT 0 +#define VPE_GRADIENT_THR_RANGE_MASK 0x0f +#define VPE_GRADIENT_THR_RANGE_SHIFT 12 +#define VPE_MIN_GY_THR_MASK 0xff +#define VPE_MIN_GY_THR_SHIFT 16 +#define VPE_MIN_GY_THR_RANGE_MASK 0x0f +#define VPE_MIN_GY_THR_RANGE_SHIFT 28 + +#define VPE_SC_MP_SC24 0x0760 +#define VPE_ORG_H_MASK 0x07ff +#define VPE_ORG_H_SHIFT 0 +#define VPE_ORG_W_MASK 0x07ff +#define VPE_ORG_W_SHIFT 16 + +#define VPE_SC_MP_SC25 0x0764 +#define VPE_OFF_H_MASK 0x07ff +#define VPE_OFF_H_SHIFT 0 +#define VPE_OFF_W_MASK 0x07ff +#define VPE_OFF_W_SHIFT 16 + +/* VPE color space converter regs */ +#define VPE_CSC_CSC00 0x5700 +#define VPE_CSC_A0_MASK 0x1fff +#define VPE_CSC_A0_SHIFT 0 +#define VPE_CSC_B0_MASK 0x1fff +#define VPE_CSC_B0_SHIFT 16 + +#define VPE_CSC_CSC01 0x5704 +#define VPE_CSC_C0_MASK 0x1fff +#define VPE_CSC_C0_SHIFT 0 +#define VPE_CSC_A1_MASK 0x1fff +#define VPE_CSC_A1_SHIFT 16 + +#define VPE_CSC_CSC02 0x5708 +#define VPE_CSC_B1_MASK 0x1fff +#define VPE_CSC_B1_SHIFT 0 +#define VPE_CSC_C1_MASK 0x1fff +#define VPE_CSC_C1_SHIFT 16 + +#define VPE_CSC_CSC03 0x570c +#define VPE_CSC_A2_MASK 0x1fff +#define VPE_CSC_A2_SHIFT 0 +#define VPE_CSC_B2_MASK 0x1fff +#define VPE_CSC_B2_SHIFT 16 + +#define VPE_CSC_CSC04 0x5710 +#define VPE_CSC_C2_MASK 0x1fff +#define VPE_CSC_C2_SHIFT 0 +#define VPE_CSC_D0_MASK 0x0fff +#define VPE_CSC_D0_SHIFT 16 + +#define VPE_CSC_CSC05 0x5714 +#define VPE_CSC_D1_MASK 0x0fff +#define VPE_CSC_D1_SHIFT 0 +#define VPE_CSC_D2_MASK 0x0fff +#define VPE_CSC_D2_SHIFT 16 +#define VPE_CSC_BYPASS (1 << 28) + +#endif diff --git a/drivers/media/platform/timblogiw.c b/drivers/media/platform/timblogiw.c index b557caf5b1a4..ccdadd623a3a 100644 --- a/drivers/media/platform/timblogiw.c +++ b/drivers/media/platform/timblogiw.c @@ -403,7 +403,7 @@ static int timblogiw_s_input(struct file *file, void *priv, unsigned int input) return 0; } -static int timblogiw_streamon(struct file *file, void *priv, unsigned int type) +static int timblogiw_streamon(struct file *file, void *priv, enum v4l2_buf_type type) { struct video_device *vdev = video_devdata(file); struct timblogiw_fh *fh = priv; @@ -420,7 +420,7 @@ static int timblogiw_streamon(struct file *file, void *priv, unsigned int type) } static int timblogiw_streamoff(struct file *file, void *priv, - unsigned int type) + enum v4l2_buf_type type) { struct video_device *vdev = video_devdata(file); struct timblogiw_fh *fh = priv; @@ -565,7 +565,7 @@ static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) desc = dmaengine_prep_slave_sg(fh->chan, buf->sg, sg_elems, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP); + DMA_PREP_INTERRUPT); if (!desc) { spin_lock_irq(&fh->queue_lock); list_del_init(&vb->queue); diff --git a/drivers/media/radio/radio-keene.c b/drivers/media/radio/radio-keene.c index 21db23b196be..fa3964022b96 100644 --- a/drivers/media/radio/radio-keene.c +++ b/drivers/media/radio/radio-keene.c @@ -123,7 +123,7 @@ static int keene_cmd_set(struct keene_device *radio) /* If bit 0 is set, then transmit mono, otherwise stereo. If bit 2 is set, then enable 75 us preemphasis, otherwise it is 50 us. */ - radio->buffer[3] = (!radio->stereo) | (radio->preemph_75_us ? 4 : 0); + radio->buffer[3] = (radio->stereo ? 0 : 1) | (radio->preemph_75_us ? 4 : 0); radio->buffer[4] = 0x00; radio->buffer[5] = 0x00; radio->buffer[6] = 0x00; diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c index f1e3714b5f16..93d864eb8306 100644 --- a/drivers/media/radio/radio-sf16fmr2.c +++ b/drivers/media/radio/radio-sf16fmr2.c @@ -74,8 +74,8 @@ static u8 fmr2_tea575x_get_pins(struct snd_tea575x *tea) struct fmr2 *fmr2 = tea->private_data; u8 bits = inb(fmr2->io); - return (bits & STR_DATA) ? TEA575X_DATA : 0 | - (bits & STR_MOST) ? TEA575X_MOST : 0; + return ((bits & STR_DATA) ? TEA575X_DATA : 0) | + ((bits & STR_MOST) ? TEA575X_MOST : 0); } static void fmr2_tea575x_set_direction(struct snd_tea575x *tea, bool output) @@ -295,7 +295,6 @@ static void fmr2_remove(struct fmr2 *fmr2) static int fmr2_isa_remove(struct device *pdev, unsigned int ndev) { fmr2_remove(dev_get_drvdata(pdev)); - dev_set_drvdata(pdev, NULL); return 0; } diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c index b91477212413..3db8a8cfe1a8 100644 --- a/drivers/media/radio/radio-shark.c +++ b/drivers/media/radio/radio-shark.c @@ -271,6 +271,7 @@ static void shark_unregister_leds(struct shark_device *shark) cancel_work_sync(&shark->led_work); } +#ifdef CONFIG_PM static void shark_resume_leds(struct shark_device *shark) { if (test_bit(BLUE_IS_PULSE, &shark->brightness_new)) @@ -280,6 +281,7 @@ static void shark_resume_leds(struct shark_device *shark) set_bit(RED_LED, &shark->brightness_new); schedule_work(&shark->led_work); } +#endif #else static int shark_register_leds(struct shark_device *shark, struct device *dev) { diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c index 9fb669721e66..d86d90dab8bf 100644 --- a/drivers/media/radio/radio-shark2.c +++ b/drivers/media/radio/radio-shark2.c @@ -237,6 +237,7 @@ static void shark_unregister_leds(struct shark_device *shark) cancel_work_sync(&shark->led_work); } +#ifdef CONFIG_PM static void shark_resume_leds(struct shark_device *shark) { int i; @@ -246,6 +247,7 @@ static void shark_resume_leds(struct shark_device *shark) schedule_work(&shark->led_work); } +#endif #else static int shark_register_leds(struct shark_device *shark, struct device *dev) { diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index 0bd250068285..0e750aef656a 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -254,7 +254,7 @@ static unsigned int si470x_get_step(struct si470x_device *radio) /* 2: 50 kHz */ default: return 50 * 16; - }; + } } diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c index e5fc9acd0c4f..2a497c80c77f 100644 --- a/drivers/media/radio/si470x/radio-si470x-i2c.c +++ b/drivers/media/radio/si470x/radio-si470x-i2c.c @@ -463,7 +463,7 @@ static int si470x_i2c_remove(struct i2c_client *client) } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP /* * si470x_i2c_suspend - suspend the device */ @@ -509,7 +509,7 @@ static struct i2c_driver si470x_i2c_driver = { .driver = { .name = "si470x", .owner = THIS_MODULE, -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP .pm = &si470x_i2c_pm, #endif }, diff --git a/drivers/media/radio/si4713-i2c.c b/drivers/media/radio/si4713-i2c.c index fe160882ee10..9ec48ccbcf0b 100644 --- a/drivers/media/radio/si4713-i2c.c +++ b/drivers/media/radio/si4713-i2c.c @@ -1456,7 +1456,7 @@ static int si4713_probe(struct i2c_client *client, if (client->irq) { rval = request_irq(client->irq, - si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED, + si4713_handler, IRQF_TRIGGER_FALLING, client->name, sdev); if (rval < 0) { v4l2_err(&sdev->sd, "Could not request IRQ\n"); diff --git a/drivers/media/radio/tef6862.c b/drivers/media/radio/tef6862.c index 06ac69245ca1..69e3245a58a0 100644 --- a/drivers/media/radio/tef6862.c +++ b/drivers/media/radio/tef6862.c @@ -48,15 +48,15 @@ #define WM_SUB_TEST 0xF /* Different modes of the MSA register */ -#define MODE_BUFFER 0x0 -#define MODE_PRESET 0x1 -#define MODE_SEARCH 0x2 -#define MODE_AF_UPDATE 0x3 -#define MODE_JUMP 0x4 -#define MODE_CHECK 0x5 -#define MODE_LOAD 0x6 -#define MODE_END 0x7 -#define MODE_SHIFT 5 +#define MSA_MODE_BUFFER 0x0 +#define MSA_MODE_PRESET 0x1 +#define MSA_MODE_SEARCH 0x2 +#define MSA_MODE_AF_UPDATE 0x3 +#define MSA_MODE_JUMP 0x4 +#define MSA_MODE_CHECK 0x5 +#define MSA_MODE_LOAD 0x6 +#define MSA_MODE_END 0x7 +#define MSA_MODE_SHIFT 5 struct tef6862_state { struct v4l2_subdev sd; @@ -114,7 +114,7 @@ static int tef6862_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequen clamp(freq, TEF6862_LO_FREQ, TEF6862_HI_FREQ); pll = 1964 + ((freq - TEF6862_LO_FREQ) * 20) / FREQ_MUL; - i2cmsg[0] = (MODE_PRESET << MODE_SHIFT) | WM_SUB_PLLM; + i2cmsg[0] = (MSA_MODE_PRESET << MSA_MODE_SHIFT) | WM_SUB_PLLM; i2cmsg[1] = (pll >> 8) & 0xff; i2cmsg[2] = pll & 0xff; diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c index 253f307f0b37..4b2e9e8298e1 100644 --- a/drivers/media/radio/wl128x/fmdrv_common.c +++ b/drivers/media/radio/wl128x/fmdrv_common.c @@ -175,7 +175,7 @@ static int_handler_prototype int_handler_table[] = { fm_irq_handle_intmsk_cmd_resp }; -long (*g_st_write) (struct sk_buff *skb); +static long (*g_st_write) (struct sk_buff *skb); static struct completion wait_for_fmdrv_reg_comp; static inline void fm_irq_call(struct fmdev *fmdev) diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index 11e84bcc23a1..904f11367c29 100644 --- a/drivers/media/rc/Kconfig +++ b/drivers/media/rc/Kconfig @@ -322,4 +322,14 @@ config IR_GPIO_CIR To compile this driver as a module, choose M here: the module will be called gpio-ir-recv. +config RC_ST + tristate "ST remote control receiver" + depends on ARCH_STI && RC_CORE + help + Say Y here if you want support for ST remote control driver + which allows both IR and UHF RX. + The driver passes raw pulse and space information to the LIRC decoder. + + If you're not sure, select N here. + endif #RC_DEVICES diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile index 56bacf07b361..f4eb32c0a455 100644 --- a/drivers/media/rc/Makefile +++ b/drivers/media/rc/Makefile @@ -30,3 +30,4 @@ obj-$(CONFIG_RC_LOOPBACK) += rc-loopback.o obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o obj-$(CONFIG_IR_IGUANA) += iguanair.o obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o +obj-$(CONFIG_RC_ST) += st_rc.o diff --git a/drivers/media/rc/fintek-cir.h b/drivers/media/rc/fintek-cir.h index 82516a1d39b0..b698f3d2ced9 100644 --- a/drivers/media/rc/fintek-cir.h +++ b/drivers/media/rc/fintek-cir.h @@ -76,8 +76,8 @@ struct fintek_dev { } tx; /* Config register index/data port pair */ - u8 cr_ip; - u8 cr_dp; + u32 cr_ip; + u32 cr_dp; /* hardware I/O settings */ unsigned long cir_addr; diff --git a/drivers/media/rc/gpio-ir-recv.c b/drivers/media/rc/gpio-ir-recv.c index 07aacfa5903d..80c611c2e8c2 100644 --- a/drivers/media/rc/gpio-ir-recv.c +++ b/drivers/media/rc/gpio-ir-recv.c @@ -16,6 +16,7 @@ #include <linux/interrupt.h> #include <linux/gpio.h> #include <linux/slab.h> +#include <linux/of.h> #include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/irq.h> diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c index b53626ba6f49..fdae05c4f377 100644 --- a/drivers/media/rc/iguanair.c +++ b/drivers/media/rc/iguanair.c @@ -308,22 +308,12 @@ static int iguanair_set_tx_carrier(struct rc_dev *dev, uint32_t carrier) cycles = DIV_ROUND_CLOSEST(24000000, carrier * 2) - ir->cycle_overhead; - /* make up the the remainer of 4-cycle blocks */ - switch (cycles & 3) { - case 0: - sevens = 0; - break; - case 1: - sevens = 3; - break; - case 2: - sevens = 2; - break; - case 3: - sevens = 1; - break; - } - + /* + * Calculate minimum number of 7 cycles needed so + * we are left with a multiple of 4; so we want to have + * (sevens * 7) & 3 == cycles & 3 + */ + sevens = (4 - cycles) & 3; fours = (cycles - sevens * 7) / 4; /* magic happens here */ diff --git a/drivers/media/rc/ir-rx51.c b/drivers/media/rc/ir-rx51.c index 31b955bf7664..b1e19a26208d 100644 --- a/drivers/media/rc/ir-rx51.c +++ b/drivers/media/rc/ir-rx51.c @@ -201,8 +201,7 @@ static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51) lirc_rx51->irq_num = omap_dm_timer_get_irq(lirc_rx51->pulse_timer); retval = request_irq(lirc_rx51->irq_num, lirc_rx51_interrupt_handler, - IRQF_DISABLED | IRQF_SHARED, - "lirc_pulse_timer", lirc_rx51); + IRQF_SHARED, "lirc_pulse_timer", lirc_rx51); if (retval) { dev_err(lirc_rx51->dev, ": Failed to request interrupt line\n"); goto err2; diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h index 7c3674ff5ea2..07e83108df0f 100644 --- a/drivers/media/rc/nuvoton-cir.h +++ b/drivers/media/rc/nuvoton-cir.h @@ -84,8 +84,8 @@ struct nvt_dev { } tx; /* EFER Config register index/data pair */ - u8 cr_efir; - u8 cr_efdr; + u32 cr_efir; + u32 cr_efdr; /* hardware I/O settings */ unsigned long cir_addr; diff --git a/drivers/media/rc/st_rc.c b/drivers/media/rc/st_rc.c new file mode 100644 index 000000000000..65120c2d47ad --- /dev/null +++ b/drivers/media/rc/st_rc.c @@ -0,0 +1,395 @@ +/* + * Copyright (C) 2013 STMicroelectronics Limited + * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <media/rc-core.h> +#include <linux/pinctrl/consumer.h> + +struct st_rc_device { + struct device *dev; + int irq; + int irq_wake; + struct clk *sys_clock; + void *base; /* Register base address */ + void *rx_base;/* RX Register base address */ + struct rc_dev *rdev; + bool overclocking; + int sample_mult; + int sample_div; + bool rxuhfmode; +}; + +/* Registers */ +#define IRB_SAMPLE_RATE_COMM 0x64 /* sample freq divisor*/ +#define IRB_CLOCK_SEL 0x70 /* clock select */ +#define IRB_CLOCK_SEL_STATUS 0x74 /* clock status */ +/* IRB IR/UHF receiver registers */ +#define IRB_RX_ON 0x40 /* pulse time capture */ +#define IRB_RX_SYS 0X44 /* sym period capture */ +#define IRB_RX_INT_EN 0x48 /* IRQ enable (R/W) */ +#define IRB_RX_INT_STATUS 0x4c /* IRQ status (R/W) */ +#define IRB_RX_EN 0x50 /* Receive enable */ +#define IRB_MAX_SYM_PERIOD 0x54 /* max sym value */ +#define IRB_RX_INT_CLEAR 0x58 /* overrun status */ +#define IRB_RX_STATUS 0x6c /* receive status */ +#define IRB_RX_NOISE_SUPPR 0x5c /* noise suppression */ +#define IRB_RX_POLARITY_INV 0x68 /* polarity inverter */ + +/** + * IRQ set: Enable full FIFO 1 -> bit 3; + * Enable overrun IRQ 1 -> bit 2; + * Enable last symbol IRQ 1 -> bit 1: + * Enable RX interrupt 1 -> bit 0; + */ +#define IRB_RX_INTS 0x0f +#define IRB_RX_OVERRUN_INT 0x04 + /* maximum symbol period (microsecs),timeout to detect end of symbol train */ +#define MAX_SYMB_TIME 0x5000 +#define IRB_SAMPLE_FREQ 10000000 +#define IRB_FIFO_NOT_EMPTY 0xff00 +#define IRB_OVERFLOW 0x4 +#define IRB_TIMEOUT 0xffff +#define IR_ST_NAME "st-rc" + +static void st_rc_send_lirc_timeout(struct rc_dev *rdev) +{ + DEFINE_IR_RAW_EVENT(ev); + ev.timeout = true; + ir_raw_event_store(rdev, &ev); +} + +/** + * RX graphical example to better understand the difference between ST IR block + * output and standard definition used by LIRC (and most of the world!) + * + * mark mark + * |-IRB_RX_ON-| |-IRB_RX_ON-| + * ___ ___ ___ ___ ___ ___ _ + * | | | | | | | | | | | | | + * | | | | | | space 0 | | | | | | space 1 | + * _____| |__| |__| |____________________________| |__| |__| |_____________| + * + * |--------------- IRB_RX_SYS -------------|------ IRB_RX_SYS -------| + * + * |------------- encoding bit 0 -----------|---- encoding bit 1 -----| + * + * ST hardware returns mark (IRB_RX_ON) and total symbol time (IRB_RX_SYS), so + * convert to standard mark/space we have to calculate space=(IRB_RX_SYS-mark) + * The mark time represents the amount of time the carrier (usually 36-40kHz) + * is detected.The above examples shows Pulse Width Modulation encoding where + * bit 0 is represented by space>mark. + */ + +static irqreturn_t st_rc_rx_interrupt(int irq, void *data) +{ + unsigned int symbol, mark = 0; + struct st_rc_device *dev = data; + int last_symbol = 0; + u32 status; + DEFINE_IR_RAW_EVENT(ev); + + if (dev->irq_wake) + pm_wakeup_event(dev->dev, 0); + + status = readl(dev->rx_base + IRB_RX_STATUS); + + while (status & (IRB_FIFO_NOT_EMPTY | IRB_OVERFLOW)) { + u32 int_status = readl(dev->rx_base + IRB_RX_INT_STATUS); + if (unlikely(int_status & IRB_RX_OVERRUN_INT)) { + /* discard the entire collection in case of errors! */ + ir_raw_event_reset(dev->rdev); + dev_info(dev->dev, "IR RX overrun\n"); + writel(IRB_RX_OVERRUN_INT, + dev->rx_base + IRB_RX_INT_CLEAR); + continue; + } + + symbol = readl(dev->rx_base + IRB_RX_SYS); + mark = readl(dev->rx_base + IRB_RX_ON); + + if (symbol == IRB_TIMEOUT) + last_symbol = 1; + + /* Ignore any noise */ + if ((mark > 2) && (symbol > 1)) { + symbol -= mark; + if (dev->overclocking) { /* adjustments to timings */ + symbol *= dev->sample_mult; + symbol /= dev->sample_div; + mark *= dev->sample_mult; + mark /= dev->sample_div; + } + + ev.duration = US_TO_NS(mark); + ev.pulse = true; + ir_raw_event_store(dev->rdev, &ev); + + if (!last_symbol) { + ev.duration = US_TO_NS(symbol); + ev.pulse = false; + ir_raw_event_store(dev->rdev, &ev); + } else { + st_rc_send_lirc_timeout(dev->rdev); + } + + } + last_symbol = 0; + status = readl(dev->rx_base + IRB_RX_STATUS); + } + + writel(IRB_RX_INTS, dev->rx_base + IRB_RX_INT_CLEAR); + + /* Empty software fifo */ + ir_raw_event_handle(dev->rdev); + return IRQ_HANDLED; +} + +static void st_rc_hardware_init(struct st_rc_device *dev) +{ + int baseclock, freqdiff; + unsigned int rx_max_symbol_per = MAX_SYMB_TIME; + unsigned int rx_sampling_freq_div; + + clk_prepare_enable(dev->sys_clock); + baseclock = clk_get_rate(dev->sys_clock); + + /* IRB input pins are inverted internally from high to low. */ + writel(1, dev->rx_base + IRB_RX_POLARITY_INV); + + rx_sampling_freq_div = baseclock / IRB_SAMPLE_FREQ; + writel(rx_sampling_freq_div, dev->base + IRB_SAMPLE_RATE_COMM); + + freqdiff = baseclock - (rx_sampling_freq_div * IRB_SAMPLE_FREQ); + if (freqdiff) { /* over clocking, workout the adjustment factors */ + dev->overclocking = true; + dev->sample_mult = 1000; + dev->sample_div = baseclock / (10000 * rx_sampling_freq_div); + rx_max_symbol_per = (rx_max_symbol_per * 1000)/dev->sample_div; + } + + writel(rx_max_symbol_per, dev->rx_base + IRB_MAX_SYM_PERIOD); +} + +static int st_rc_remove(struct platform_device *pdev) +{ + struct st_rc_device *rc_dev = platform_get_drvdata(pdev); + clk_disable_unprepare(rc_dev->sys_clock); + rc_unregister_device(rc_dev->rdev); + return 0; +} + +static int st_rc_open(struct rc_dev *rdev) +{ + struct st_rc_device *dev = rdev->priv; + unsigned long flags; + local_irq_save(flags); + /* enable interrupts and receiver */ + writel(IRB_RX_INTS, dev->rx_base + IRB_RX_INT_EN); + writel(0x01, dev->rx_base + IRB_RX_EN); + local_irq_restore(flags); + + return 0; +} + +static void st_rc_close(struct rc_dev *rdev) +{ + struct st_rc_device *dev = rdev->priv; + /* disable interrupts and receiver */ + writel(0x00, dev->rx_base + IRB_RX_EN); + writel(0x00, dev->rx_base + IRB_RX_INT_EN); +} + +static int st_rc_probe(struct platform_device *pdev) +{ + int ret = -EINVAL; + struct rc_dev *rdev; + struct device *dev = &pdev->dev; + struct resource *res; + struct st_rc_device *rc_dev; + struct device_node *np = pdev->dev.of_node; + const char *rx_mode; + + rc_dev = devm_kzalloc(dev, sizeof(struct st_rc_device), GFP_KERNEL); + + if (!rc_dev) + return -ENOMEM; + + rdev = rc_allocate_device(); + + if (!rdev) + return -ENOMEM; + + if (np && !of_property_read_string(np, "rx-mode", &rx_mode)) { + + if (!strcmp(rx_mode, "uhf")) { + rc_dev->rxuhfmode = true; + } else if (!strcmp(rx_mode, "infrared")) { + rc_dev->rxuhfmode = false; + } else { + dev_err(dev, "Unsupported rx mode [%s]\n", rx_mode); + goto err; + } + + } else { + goto err; + } + + rc_dev->sys_clock = devm_clk_get(dev, NULL); + if (IS_ERR(rc_dev->sys_clock)) { + dev_err(dev, "System clock not found\n"); + ret = PTR_ERR(rc_dev->sys_clock); + goto err; + } + + rc_dev->irq = platform_get_irq(pdev, 0); + if (rc_dev->irq < 0) { + ret = rc_dev->irq; + goto err; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + rc_dev->base = devm_ioremap_resource(dev, res); + if (IS_ERR(rc_dev->base)) { + ret = PTR_ERR(rc_dev->base); + goto err; + } + + if (rc_dev->rxuhfmode) + rc_dev->rx_base = rc_dev->base + 0x40; + else + rc_dev->rx_base = rc_dev->base; + + rc_dev->dev = dev; + platform_set_drvdata(pdev, rc_dev); + st_rc_hardware_init(rc_dev); + + rdev->driver_type = RC_DRIVER_IR_RAW; + rdev->allowed_protos = RC_BIT_ALL; + /* rx sampling rate is 10Mhz */ + rdev->rx_resolution = 100; + rdev->timeout = US_TO_NS(MAX_SYMB_TIME); + rdev->priv = rc_dev; + rdev->open = st_rc_open; + rdev->close = st_rc_close; + rdev->driver_name = IR_ST_NAME; + rdev->map_name = RC_MAP_LIRC; + rdev->input_name = "ST Remote Control Receiver"; + + /* enable wake via this device */ + device_set_wakeup_capable(dev, true); + device_set_wakeup_enable(dev, true); + + ret = rc_register_device(rdev); + if (ret < 0) + goto clkerr; + + rc_dev->rdev = rdev; + if (devm_request_irq(dev, rc_dev->irq, st_rc_rx_interrupt, + IRQF_NO_SUSPEND, IR_ST_NAME, rc_dev) < 0) { + dev_err(dev, "IRQ %d register failed\n", rc_dev->irq); + ret = -EINVAL; + goto rcerr; + } + + /** + * for LIRC_MODE_MODE2 or LIRC_MODE_PULSE or LIRC_MODE_RAW + * lircd expects a long space first before a signal train to sync. + */ + st_rc_send_lirc_timeout(rdev); + + dev_info(dev, "setup in %s mode\n", rc_dev->rxuhfmode ? "UHF" : "IR"); + + return ret; +rcerr: + rc_unregister_device(rdev); + rdev = NULL; +clkerr: + clk_disable_unprepare(rc_dev->sys_clock); +err: + rc_free_device(rdev); + dev_err(dev, "Unable to register device (%d)\n", ret); + return ret; +} + +#ifdef CONFIG_PM +static int st_rc_suspend(struct device *dev) +{ + struct st_rc_device *rc_dev = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) { + if (!enable_irq_wake(rc_dev->irq)) + rc_dev->irq_wake = 1; + else + return -EINVAL; + } else { + pinctrl_pm_select_sleep_state(dev); + writel(0x00, rc_dev->rx_base + IRB_RX_EN); + writel(0x00, rc_dev->rx_base + IRB_RX_INT_EN); + clk_disable_unprepare(rc_dev->sys_clock); + } + + return 0; +} + +static int st_rc_resume(struct device *dev) +{ + struct st_rc_device *rc_dev = dev_get_drvdata(dev); + struct rc_dev *rdev = rc_dev->rdev; + + if (rc_dev->irq_wake) { + disable_irq_wake(rc_dev->irq); + rc_dev->irq_wake = 0; + } else { + pinctrl_pm_select_default_state(dev); + st_rc_hardware_init(rc_dev); + if (rdev->users) { + writel(IRB_RX_INTS, rc_dev->rx_base + IRB_RX_INT_EN); + writel(0x01, rc_dev->rx_base + IRB_RX_EN); + } + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(st_rc_pm_ops, st_rc_suspend, st_rc_resume); +#endif + +#ifdef CONFIG_OF +static struct of_device_id st_rc_match[] = { + { .compatible = "st,comms-irb", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, st_rc_match); +#endif + +static struct platform_driver st_rc_driver = { + .driver = { + .name = IR_ST_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(st_rc_match), +#ifdef CONFIG_PM + .pm = &st_rc_pm_ops, +#endif + }, + .probe = st_rc_probe, + .remove = st_rc_remove, +}; + +module_platform_driver(st_rc_driver); + +MODULE_DESCRIPTION("RC Transceiver driver for STMicroelectronics platforms"); +MODULE_AUTHOR("STMicroelectronics (R&D) Ltd"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index 98bd4960c75e..904baf4eec28 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -1110,7 +1110,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) } err = request_irq(data->irq, wbcir_irq_handler, - IRQF_DISABLED, DRVNAME, device); + 0, DRVNAME, device); if (err) { dev_err(dev, "Failed to claim IRQ %u\n", data->irq); err = -EBUSY; diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c index 6c96e4898777..72971a8d3c37 100644 --- a/drivers/media/tuners/e4000.c +++ b/drivers/media/tuners/e4000.c @@ -21,20 +21,30 @@ #include "e4000_priv.h" #include <linux/math64.h> +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* write multiple registers */ static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[1 + len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg->i2c_addr, .flags = 0, - .len = sizeof(buf), + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -54,7 +64,7 @@ static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[2] = { { .addr = priv->cfg->i2c_addr, @@ -64,11 +74,18 @@ static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) }, { .addr = priv->cfg->i2c_addr, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = len, .buf = buf, } }; + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c rd reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, buf, len); diff --git a/drivers/media/tuners/fc0012.c b/drivers/media/tuners/fc0012.c index f4d0e797a6cc..d74e92056810 100644 --- a/drivers/media/tuners/fc0012.c +++ b/drivers/media/tuners/fc0012.c @@ -139,7 +139,7 @@ static int fc0012_set_params(struct dvb_frontend *fe) unsigned char reg[7], am, pm, multi, tmp; unsigned long f_vco; unsigned short xtal_freq_khz_2, xin, xdiv; - int vco_select = false; + bool vco_select = false; if (fe->callback) { ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, diff --git a/drivers/media/tuners/fc0013.c b/drivers/media/tuners/fc0013.c index bd8f0f1e8f3b..b4162315773d 100644 --- a/drivers/media/tuners/fc0013.c +++ b/drivers/media/tuners/fc0013.c @@ -233,7 +233,7 @@ static int fc0013_set_params(struct dvb_frontend *fe) unsigned char reg[7], am, pm, multi, tmp; unsigned long f_vco; unsigned short xtal_freq_khz_2, xin, xdiv; - int vco_select = false; + bool vco_select = false; if (fe->callback) { ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER, diff --git a/drivers/media/tuners/fc2580.c b/drivers/media/tuners/fc2580.c index 81f38aae9c66..3aecaf465094 100644 --- a/drivers/media/tuners/fc2580.c +++ b/drivers/media/tuners/fc2580.c @@ -20,6 +20,9 @@ #include "fc2580_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* * TODO: * I2C write and read works only for one single register. Multiple registers @@ -41,16 +44,23 @@ static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[1 + len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg->i2c_addr, .flags = 0, - .len = sizeof(buf), + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -69,7 +79,7 @@ static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[2] = { { .addr = priv->cfg->i2c_addr, @@ -79,11 +89,18 @@ static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len) }, { .addr = priv->cfg->i2c_addr, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = len, .buf = buf, } }; + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c rd reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, buf, len); diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c index 1c23666468cf..d9ee43fae62d 100644 --- a/drivers/media/tuners/r820t.c +++ b/drivers/media/tuners/r820t.c @@ -612,10 +612,19 @@ static int r820t_set_pll(struct r820t_priv *priv, enum v4l2_tuner_type type, vco_fine_tune = (data[4] & 0x30) >> 4; - if (vco_fine_tune > VCO_POWER_REF) - div_num = div_num - 1; - else if (vco_fine_tune < VCO_POWER_REF) - div_num = div_num + 1; + tuner_dbg("mix_div=%d div_num=%d vco_fine_tune=%d\n", + mix_div, div_num, vco_fine_tune); + + /* + * XXX: R828D/16MHz seems to have always vco_fine_tune=1. + * Due to that, this calculation goes wrong. + */ + if (priv->cfg->rafael_chip != CHIP_R828D) { + if (vco_fine_tune > VCO_POWER_REF) + div_num = div_num - 1; + else if (vco_fine_tune < VCO_POWER_REF) + div_num = div_num + 1; + } rc = r820t_write_reg_mask(priv, 0x10, div_num << 5, 0xe0); if (rc < 0) @@ -637,11 +646,6 @@ static int r820t_set_pll(struct r820t_priv *priv, enum v4l2_tuner_type type, vco_fra = pll_ref * 129 / 128; } - if (nint > 63) { - tuner_info("No valid PLL values for %u kHz!\n", freq); - return -EINVAL; - } - ni = (nint - 13) / 4; si = nint - 4 * ni - 13; diff --git a/drivers/media/tuners/tda18212.c b/drivers/media/tuners/tda18212.c index e4a84ee231cf..abe256e1f843 100644 --- a/drivers/media/tuners/tda18212.c +++ b/drivers/media/tuners/tda18212.c @@ -20,6 +20,9 @@ #include "tda18212.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + struct tda18212_priv { struct tda18212_config *cfg; struct i2c_adapter *i2c; @@ -32,16 +35,23 @@ static int tda18212_wr_regs(struct tda18212_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len+1]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg->i2c_address, .flags = 0, - .len = sizeof(buf), + .len = 1 + len, .buf = buf, } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + buf[0] = reg; memcpy(&buf[1], val, len); @@ -61,7 +71,7 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val, int len) { int ret; - u8 buf[len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[2] = { { .addr = priv->cfg->i2c_address, @@ -71,11 +81,18 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val, }, { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = len, .buf = buf, } }; + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c rd reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, buf, len); diff --git a/drivers/media/tuners/tda18218.c b/drivers/media/tuners/tda18218.c index 2d31aeb6b088..9300e9361e3b 100644 --- a/drivers/media/tuners/tda18218.c +++ b/drivers/media/tuners/tda18218.c @@ -20,11 +20,14 @@ #include "tda18218_priv.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* write multiple registers */ static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len) { int ret = 0, len2, remaining; - u8 buf[1 + len]; + u8 buf[MAX_XFER_SIZE]; struct i2c_msg msg[1] = { { .addr = priv->cfg->i2c_address, @@ -33,6 +36,13 @@ static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len) } }; + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + for (remaining = len; remaining > 0; remaining -= (priv->cfg->i2c_wr_max - 1)) { len2 = remaining; @@ -63,7 +73,7 @@ static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len) static int tda18218_rd_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len) { int ret; - u8 buf[reg+len]; /* we must start read always from reg 0x00 */ + u8 buf[MAX_XFER_SIZE]; /* we must start read always from reg 0x00 */ struct i2c_msg msg[2] = { { .addr = priv->cfg->i2c_address, @@ -73,11 +83,18 @@ static int tda18218_rd_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len) }, { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, - .len = sizeof(buf), + .len = reg + len, .buf = buf, } }; + if (reg + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + ret = i2c_transfer(priv->i2c, msg, 2); if (ret == 2) { memcpy(val, &buf[reg], len); diff --git a/drivers/media/tuners/tda9887.c b/drivers/media/tuners/tda9887.c index 300005c535ba..9823248d743f 100644 --- a/drivers/media/tuners/tda9887.c +++ b/drivers/media/tuners/tda9887.c @@ -536,8 +536,8 @@ static int tda9887_status(struct dvb_frontend *fe) unsigned char buf[1]; int rc; - memset(buf,0,sizeof(buf)); - if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,buf,1))) + rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, 1); + if (rc != 1) tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc); dump_read_message(fe, buf); return 0; diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c index 878d2c4d9e8e..4be5cf808a40 100644 --- a/drivers/media/tuners/tuner-xc2028.c +++ b/drivers/media/tuners/tuner-xc2028.c @@ -24,6 +24,9 @@ #include <linux/dvb/frontend.h> #include "dvb_frontend.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 80 + /* Registers (Write-only) */ #define XREG_INIT 0x00 #define XREG_RF_FREQ 0x02 @@ -547,7 +550,10 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type, { struct xc2028_data *priv = fe->tuner_priv; int pos, rc; - unsigned char *p, *endp, buf[priv->ctrl.max_len]; + unsigned char *p, *endp, buf[MAX_XFER_SIZE]; + + if (priv->ctrl.max_len > sizeof(buf)) + priv->ctrl.max_len = sizeof(buf); tuner_dbg("%s called\n", __func__); @@ -572,7 +578,7 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type, return -EINVAL; } - size = le16_to_cpu(*(__u16 *) p); + size = le16_to_cpu(*(__le16 *) p); p += sizeof(size); if (size == 0xffff) @@ -683,7 +689,7 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type, /* 16 SCODE entries per file; each SCODE entry is 12 bytes and * has a 2-byte size header in the firmware format. */ if (priv->firm[pos].size != 14 * 16 || scode >= 16 || - le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12) + le16_to_cpu(*(__le16 *)(p + 14 * scode)) != 12) return -EINVAL; p += 14 * scode + 2; } diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c index 8b6275f85908..0bd969063392 100644 --- a/drivers/media/usb/b2c2/flexcop-usb.c +++ b/drivers/media/usb/b2c2/flexcop-usb.c @@ -390,7 +390,7 @@ static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb) } if (fc_usb->iso_buffer != NULL) - pci_free_consistent(NULL, + usb_free_coherent(fc_usb->udev, fc_usb->buffer_size, fc_usb->iso_buffer, fc_usb->dma_addr); } @@ -407,8 +407,8 @@ static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb) "each of %d bytes size = %d.\n", B2C2_USB_NUM_ISO_URB, B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize); - fc_usb->iso_buffer = pci_alloc_consistent(NULL, - bufsize, &fc_usb->dma_addr); + fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev, + bufsize, GFP_KERNEL, &fc_usb->dma_addr); if (fc_usb->iso_buffer == NULL) return -ENOMEM; diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c index be1719283609..351a78a84c3d 100644 --- a/drivers/media/usb/cpia2/cpia2_usb.c +++ b/drivers/media/usb/cpia2/cpia2_usb.c @@ -209,7 +209,7 @@ static void cpia2_usb_complete(struct urb *urb) { int i; unsigned char *cdata; - static int frame_ready = false; + static bool frame_ready = false; struct camera_data *cam = (struct camera_data *) urb->context; if (urb->status!=0) { diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c index a384f80f595e..e9d017bea377 100644 --- a/drivers/media/usb/cx231xx/cx231xx-cards.c +++ b/drivers/media/usb/cx231xx/cx231xx-cards.c @@ -978,7 +978,6 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, int minor) { int retval = -ENOMEM; - int errCode; unsigned int maxh, maxw; dev->udev = udev; @@ -1014,8 +1013,8 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, /* Cx231xx pre card setup */ cx231xx_pre_card_setup(dev); - errCode = cx231xx_config(dev); - if (errCode) { + retval = cx231xx_config(dev); + if (retval) { cx231xx_errdev("error configuring device\n"); return -ENOMEM; } @@ -1024,12 +1023,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, dev->norm = dev->board.norm; /* register i2c bus */ - errCode = cx231xx_dev_init(dev); - if (errCode < 0) { - cx231xx_dev_uninit(dev); + retval = cx231xx_dev_init(dev); + if (retval) { cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n", - __func__, errCode); - return errCode; + __func__, retval); + goto err_dev_init; } /* Do board specific init */ @@ -1047,11 +1045,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, dev->interlaced = 0; dev->video_input = 0; - errCode = cx231xx_config(dev); - if (errCode < 0) { + retval = cx231xx_config(dev); + if (retval) { cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n", - __func__, errCode); - return errCode; + __func__, retval); + goto err_dev_init; } /* init video dma queues */ @@ -1075,9 +1073,9 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, } retval = cx231xx_register_analog_devices(dev); - if (retval < 0) { - cx231xx_release_resources(dev); - return retval; + if (retval) { + cx231xx_release_analog_resources(dev); + goto err_analog; } cx231xx_ir_init(dev); @@ -1085,6 +1083,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev, cx231xx_init_extension(dev); return 0; +err_analog: + cx231xx_remove_from_devlist(dev); +err_dev_init: + cx231xx_dev_uninit(dev); + return retval; } #if defined(CONFIG_MODULES) && defined(MODULE) @@ -1132,7 +1135,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface, char *speed; struct usb_interface_assoc_descriptor *assoc_desc; - udev = usb_get_dev(interface_to_usbdev(interface)); ifnum = interface->altsetting[0].desc.bInterfaceNumber; /* @@ -1161,6 +1163,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, return -ENOMEM; } + udev = usb_get_dev(interface_to_usbdev(interface)); + snprintf(dev->name, 29, "cx231xx #%d", nr); dev->devno = nr; dev->model = id->driver_info; @@ -1223,10 +1227,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, if (assoc_desc->bFirstInterface != ifnum) { cx231xx_err(DRIVER_NAME ": Not found " "matching IAD interface\n"); - clear_bit(dev->devno, &cx231xx_devused); - kfree(dev); - dev = NULL; - return -ENODEV; + retval = -ENODEV; + goto err_if; } cx231xx_info("registering interface %d\n", ifnum); @@ -1242,22 +1244,13 @@ static int cx231xx_usb_probe(struct usb_interface *interface, retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); if (retval) { cx231xx_errdev("v4l2_device_register failed\n"); - clear_bit(dev->devno, &cx231xx_devused); - kfree(dev); - dev = NULL; - return -EIO; + retval = -EIO; + goto err_v4l2; } /* allocate device struct */ retval = cx231xx_init_dev(dev, udev, nr); - if (retval) { - clear_bit(dev->devno, &cx231xx_devused); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - dev = NULL; - usb_set_intfdata(interface, NULL); - - return retval; - } + if (retval) + goto err_init; /* compute alternate max packet sizes for video */ uif = udev->actconfig->interface[dev->current_pcb_config. @@ -1275,11 +1268,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, if (dev->video_mode.alt_max_pkt_size == NULL) { cx231xx_errdev("out of memory!\n"); - clear_bit(dev->devno, &cx231xx_devused); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - dev = NULL; - return -ENOMEM; + retval = -ENOMEM; + goto err_video_alt; } for (i = 0; i < dev->video_mode.num_alt; i++) { @@ -1309,11 +1299,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, if (dev->vbi_mode.alt_max_pkt_size == NULL) { cx231xx_errdev("out of memory!\n"); - clear_bit(dev->devno, &cx231xx_devused); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - dev = NULL; - return -ENOMEM; + retval = -ENOMEM; + goto err_vbi_alt; } for (i = 0; i < dev->vbi_mode.num_alt; i++) { @@ -1344,11 +1331,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) { cx231xx_errdev("out of memory!\n"); - clear_bit(dev->devno, &cx231xx_devused); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - dev = NULL; - return -ENOMEM; + retval = -ENOMEM; + goto err_sliced_cc_alt; } for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) { @@ -1380,11 +1364,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface, if (dev->ts1_mode.alt_max_pkt_size == NULL) { cx231xx_errdev("out of memory!\n"); - clear_bit(dev->devno, &cx231xx_devused); - v4l2_device_unregister(&dev->v4l2_dev); - kfree(dev); - dev = NULL; - return -ENOMEM; + retval = -ENOMEM; + goto err_ts1_alt; } for (i = 0; i < dev->ts1_mode.num_alt; i++) { @@ -1411,6 +1392,29 @@ static int cx231xx_usb_probe(struct usb_interface *interface, request_modules(dev); return 0; +err_ts1_alt: + kfree(dev->sliced_cc_mode.alt_max_pkt_size); +err_sliced_cc_alt: + kfree(dev->vbi_mode.alt_max_pkt_size); +err_vbi_alt: + kfree(dev->video_mode.alt_max_pkt_size); +err_video_alt: + /* cx231xx_uninit_dev: */ + cx231xx_close_extension(dev); + cx231xx_ir_exit(dev); + cx231xx_release_analog_resources(dev); + cx231xx_417_unregister(dev); + cx231xx_remove_from_devlist(dev); + cx231xx_dev_uninit(dev); +err_init: + v4l2_device_unregister(&dev->v4l2_dev); +err_v4l2: + usb_set_intfdata(interface, NULL); +err_if: + usb_put_dev(udev); + kfree(dev); + clear_bit(dev->devno, &cx231xx_devused); + return retval; } /* diff --git a/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c b/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c index d7308ab7a90f..2a34ceee4802 100644 --- a/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c +++ b/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c @@ -28,7 +28,7 @@ MODULE_PARM_DESC(pcb_debug, "enable pcb config debug messages [video]"); /******************************************************************************/ -struct pcb_config cx231xx_Scenario[] = { +static struct pcb_config cx231xx_Scenario[] = { { INDEX_SELFPOWER_DIGITAL_ONLY, /* index */ USB_SELF_POWER, /* power_type */ @@ -672,7 +672,7 @@ u32 initialize_cx231xx(struct cx231xx *dev) pcb config it is related to */ cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, BOARD_CFG_STAT, data, 4); - config_info = le32_to_cpu(*((u32 *) data)); + config_info = le32_to_cpu(*((__le32 *)data)); usb_speed = (u8) (config_info & 0x1); /* Verify this device belongs to Bus power or Self power device */ diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c index d556042cf312..da47d2392f2a 100644 --- a/drivers/media/usb/dvb-usb-v2/af9015.c +++ b/drivers/media/usb/dvb-usb-v2/af9015.c @@ -397,12 +397,13 @@ error: return ret; } +#define AF9015_EEPROM_SIZE 256 + /* hash (and dump) eeprom */ static int af9015_eeprom_hash(struct dvb_usb_device *d) { struct af9015_state *state = d_to_priv(d); int ret, i; - static const unsigned int AF9015_EEPROM_SIZE = 256; u8 buf[AF9015_EEPROM_SIZE]; struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, NULL}; diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c index 1ea17dc2a76e..c8fcd78425bd 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.c +++ b/drivers/media/usb/dvb-usb-v2/af9035.c @@ -21,6 +21,9 @@ #include "af9035.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); static u16 af9035_checksum(const u8 *buf, size_t len) @@ -126,10 +129,16 @@ exit: /* write multiple registers */ static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len) { - u8 wbuf[6 + len]; + u8 wbuf[MAX_XFER_SIZE]; u8 mbox = (reg >> 16) & 0xff; struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL }; + if (6 + len > sizeof(wbuf)) { + dev_warn(&d->udev->dev, "%s: i2c wr: len=%d is too big!\n", + KBUILD_MODNAME, len); + return -EOPNOTSUPP; + } + wbuf[0] = len; wbuf[1] = 2; wbuf[2] = 0; @@ -228,9 +237,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, msg[1].len); } else { /* I2C */ - u8 buf[5 + msg[0].len]; + u8 buf[MAX_XFER_SIZE]; struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf), buf, msg[1].len, msg[1].buf }; + + if (5 + msg[0].len > sizeof(buf)) { + dev_warn(&d->udev->dev, + "%s: i2c xfer: len=%d is too big!\n", + KBUILD_MODNAME, msg[0].len); + return -EOPNOTSUPP; + } req.mbox |= ((msg[0].addr & 0x80) >> 3); buf[0] = msg[1].len; buf[1] = msg[0].addr << 1; @@ -257,9 +273,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap, msg[0].len - 3); } else { /* I2C */ - u8 buf[5 + msg[0].len]; + u8 buf[MAX_XFER_SIZE]; struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf, 0, NULL }; + + if (5 + msg[0].len > sizeof(buf)) { + dev_warn(&d->udev->dev, + "%s: i2c xfer: len=%d is too big!\n", + KBUILD_MODNAME, msg[0].len); + return -EOPNOTSUPP; + } req.mbox |= ((msg[0].addr & 0x80) >> 3); buf[0] = msg[0].len; buf[1] = msg[0].addr << 1; diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c index e97964ef7f56..2627553f7de1 100644 --- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c +++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c @@ -23,6 +23,9 @@ #include "lgdt3305.h" #include "lg2160.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + int dvb_usb_mxl111sf_debug; module_param_named(debug, dvb_usb_mxl111sf_debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level " @@ -57,7 +60,12 @@ int mxl111sf_ctrl_msg(struct dvb_usb_device *d, { int wo = (rbuf == NULL || rlen == 0); /* write-only */ int ret; - u8 sndbuf[1+wlen]; + u8 sndbuf[MAX_XFER_SIZE]; + + if (1 + wlen > sizeof(sndbuf)) { + pr_warn("%s: len=%d is too big!\n", __func__, wlen); + return -EOPNOTSUPP; + } pr_debug("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen); diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c index c0cd0848631b..ecca03667f98 100644 --- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c +++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c @@ -377,6 +377,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d) struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf}; struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf}; struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf}; + struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf}; dev_dbg(&d->udev->dev, "%s:\n", __func__); @@ -489,6 +490,15 @@ static int rtl2832u_read_config(struct dvb_usb_device *d) goto found; } + /* check R828D ID register; reg=00 val=69 */ + ret = rtl28xxu_ctrl_msg(d, &req_r828d); + if (ret == 0 && buf[0] == 0x69) { + priv->tuner = TUNER_RTL2832_R828D; + priv->tuner_name = "R828D"; + goto found; + } + + found: dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name); @@ -745,6 +755,7 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap) rtl2832_config = &rtl28xxu_rtl2832_e4000_config; break; case TUNER_RTL2832_R820T: + case TUNER_RTL2832_R828D: rtl2832_config = &rtl28xxu_rtl2832_r820t_config; break; default: @@ -866,6 +877,13 @@ static const struct r820t_config rtl2832u_r820t_config = { .rafael_chip = CHIP_R820T, }; +static const struct r820t_config rtl2832u_r828d_config = { + .i2c_addr = 0x3a, + .xtal = 16000000, + .max_i2c_msg_len = 2, + .rafael_chip = CHIP_R828D, +}; + static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap) { int ret; @@ -923,6 +941,27 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap) adap->fe[0]->ops.read_signal_strength = adap->fe[0]->ops.tuner_ops.get_rf_strength; break; + case TUNER_RTL2832_R828D: + /* power off mn88472 demod on GPIO0 */ + ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01); + if (ret) + goto err; + + ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01); + if (ret) + goto err; + + ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01); + if (ret) + goto err; + + fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap, + &rtl2832u_r828d_config); + + /* Use tuner to get the signal strength */ + adap->fe[0]->ops.read_signal_strength = + adap->fe[0]->ops.tuner_ops.get_rf_strength; + break; default: fe = NULL; dev_err(&d->udev->dev, "%s: unknown tuner=%d\n", KBUILD_MODNAME, @@ -1388,6 +1427,9 @@ static const struct usb_device_id rtl28xxu_id_table[] = { &rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) }, { DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A, &rtl2832u_props, "Crypto ReDi PC 50 A", NULL) }, + + { DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131, + &rtl2832u_props, "Astrometa DVB-T2", NULL) }, { } }; MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table); diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h index 729b3540c2f9..2142bcb41b41 100644 --- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h +++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h @@ -83,6 +83,7 @@ enum rtl28xxu_tuner { TUNER_RTL2832_TDA18272, TUNER_RTL2832_FC0013, TUNER_RTL2832_R820T, + TUNER_RTL2832_R828D, }; struct rtl28xxu_req { diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c index ea2d5ee86576..c11138ebf6fb 100644 --- a/drivers/media/usb/dvb-usb/az6027.c +++ b/drivers/media/usb/dvb-usb/az6027.c @@ -254,7 +254,7 @@ static const struct stb0899_s1_reg az6027_stb0899_s1_init_3[] = { -struct stb0899_config az6027_stb0899_config = { +static struct stb0899_config az6027_stb0899_config = { .init_dev = az6027_stb0899_s1_init_1, .init_s2_demod = stb0899_s2_init_2, .init_s1_demod = az6027_stb0899_s1_init_3, @@ -291,7 +291,7 @@ struct stb0899_config az6027_stb0899_config = { .tuner_set_rfsiggain = NULL, }; -struct stb6100_config az6027_stb6100_config = { +static struct stb6100_config az6027_stb6100_config = { .tuner_address = 0xc0, .refclock = 27000000, }; diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c index 3940bb0f9ef6..20e345d9fe8f 100644 --- a/drivers/media/usb/dvb-usb/cxusb.c +++ b/drivers/media/usb/dvb-usb/cxusb.c @@ -43,6 +43,9 @@ #include "lgs8gxx.h" #include "atbm8830.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + /* debug */ static int dvb_usb_cxusb_debug; module_param_named(debug, dvb_usb_cxusb_debug, int, 0644); @@ -57,7 +60,14 @@ static int cxusb_ctrl_msg(struct dvb_usb_device *d, u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen) { int wo = (rbuf == NULL || rlen == 0); /* write-only */ - u8 sndbuf[1+wlen]; + u8 sndbuf[MAX_XFER_SIZE]; + + if (1 + wlen > sizeof(sndbuf)) { + warn("i2c wr: len=%d is too big!\n", + wlen); + return -EOPNOTSUPP; + } + memset(sndbuf, 0, 1+wlen); sndbuf[0] = cmd; @@ -158,7 +168,13 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], if (msg[i].flags & I2C_M_RD) { /* read only */ - u8 obuf[3], ibuf[1+msg[i].len]; + u8 obuf[3], ibuf[MAX_XFER_SIZE]; + + if (1 + msg[i].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[i].len); + return -EOPNOTSUPP; + } obuf[0] = 0; obuf[1] = msg[i].len; obuf[2] = msg[i].addr; @@ -172,7 +188,18 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], } else if (i+1 < num && (msg[i+1].flags & I2C_M_RD) && msg[i].addr == msg[i+1].addr) { /* write to then read from same address */ - u8 obuf[3+msg[i].len], ibuf[1+msg[i+1].len]; + u8 obuf[MAX_XFER_SIZE], ibuf[MAX_XFER_SIZE]; + + if (3 + msg[i].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[i].len); + return -EOPNOTSUPP; + } + if (1 + msg[i + 1].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[i + 1].len); + return -EOPNOTSUPP; + } obuf[0] = msg[i].len; obuf[1] = msg[i+1].len; obuf[2] = msg[i].addr; @@ -191,7 +218,13 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], i++; } else { /* write only */ - u8 obuf[2+msg[i].len], ibuf; + u8 obuf[MAX_XFER_SIZE], ibuf; + + if (2 + msg[i].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[i].len); + return -EOPNOTSUPP; + } obuf[0] = msg[i].addr; obuf[1] = msg[i].len; memcpy(&obuf[2], msg[i].buf, msg[i].len); diff --git a/drivers/media/usb/dvb-usb/dibusb-common.c b/drivers/media/usb/dvb-usb/dibusb-common.c index c2dded92f1d3..6d68af0c49c8 100644 --- a/drivers/media/usb/dvb-usb/dibusb-common.c +++ b/drivers/media/usb/dvb-usb/dibusb-common.c @@ -12,6 +12,9 @@ #include <linux/kconfig.h> #include "dibusb.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS); @@ -105,11 +108,16 @@ EXPORT_SYMBOL(dibusb2_0_power_ctrl); static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr, u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen) { - u8 sndbuf[wlen+4]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */ + u8 sndbuf[MAX_XFER_SIZE]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */ /* write only ? */ int wo = (rbuf == NULL || rlen == 0), len = 2 + wlen + (wo ? 0 : 2); + if (4 + wlen > sizeof(sndbuf)) { + warn("i2c wr: len=%d is too big!\n", wlen); + return -EOPNOTSUPP; + } + sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ; sndbuf[1] = (addr << 1) | (wo ? 0 : 1); diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c index 6e237b6dd0a8..c1a63b2a6baa 100644 --- a/drivers/media/usb/dvb-usb/dw2102.c +++ b/drivers/media/usb/dvb-usb/dw2102.c @@ -30,6 +30,9 @@ #include "stb6100_proc.h" #include "m88rs2000.h" +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + #ifndef USB_PID_DW2102 #define USB_PID_DW2102 0x2102 #endif @@ -308,7 +311,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms case 2: { /* read */ /* first write first register number */ - u8 ibuf[msg[1].len + 2], obuf[3]; + u8 ibuf[MAX_XFER_SIZE], obuf[3]; + + if (2 + msg[1].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[1].len); + return -EOPNOTSUPP; + } + obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; obuf[2] = msg[0].buf[0]; @@ -325,7 +335,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms switch (msg[0].addr) { case 0x68: { /* write to register */ - u8 obuf[msg[0].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[0].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[1].len); + return -EOPNOTSUPP; + } + obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; memcpy(obuf + 2, msg[0].buf, msg[0].len); @@ -335,7 +352,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms } case 0x61: { /* write to tuner */ - u8 obuf[msg[0].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[0].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[1].len); + return -EOPNOTSUPP; + } + obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; memcpy(obuf + 2, msg[0].buf, msg[0].len); @@ -401,7 +425,14 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i default: { if (msg[j].flags == I2C_M_RD) { /* read registers */ - u8 ibuf[msg[j].len + 2]; + u8 ibuf[MAX_XFER_SIZE]; + + if (2 + msg[j].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[j].len); + return -EOPNOTSUPP; + } + dw210x_op_rw(d->udev, 0xc3, (msg[j].addr << 1) + 1, 0, ibuf, msg[j].len + 2, @@ -430,7 +461,14 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i } while (len > 0); } else { /* write registers */ - u8 obuf[msg[j].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[j].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[j].len); + return -EOPNOTSUPP; + } + obuf[0] = msg[j].addr << 1; obuf[1] = msg[j].len; memcpy(obuf + 2, msg[j].buf, msg[j].len); @@ -463,7 +501,13 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], case 2: { /* read */ /* first write first register number */ - u8 ibuf[msg[1].len + 2], obuf[3]; + u8 ibuf[MAX_XFER_SIZE], obuf[3]; + + if (2 + msg[1].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[1].len); + return -EOPNOTSUPP; + } obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; obuf[2] = msg[0].buf[0]; @@ -481,7 +525,13 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], case 0x60: case 0x0c: { /* write to register */ - u8 obuf[msg[0].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[0].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[0].len); + return -EOPNOTSUPP; + } obuf[0] = msg[0].addr << 1; obuf[1] = msg[0].len; memcpy(obuf + 2, msg[0].buf, msg[0].len); @@ -563,7 +613,14 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], default: { if (msg[j].flags == I2C_M_RD) { /* read registers */ - u8 ibuf[msg[j].len]; + u8 ibuf[MAX_XFER_SIZE]; + + if (msg[j].len > sizeof(ibuf)) { + warn("i2c rd: len=%d is too big!\n", + msg[j].len); + return -EOPNOTSUPP; + } + dw210x_op_rw(d->udev, 0x91, 0, 0, ibuf, msg[j].len, DW210X_READ_MSG); @@ -590,7 +647,14 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], } while (len > 0); } else if (j < (num - 1)) { /* write register addr before read */ - u8 obuf[msg[j].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[j].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[j].len); + return -EOPNOTSUPP; + } + obuf[0] = msg[j + 1].len; obuf[1] = (msg[j].addr << 1); memcpy(obuf + 2, msg[j].buf, msg[j].len); @@ -602,7 +666,13 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], break; } else { /* write registers */ - u8 obuf[msg[j].len + 2]; + u8 obuf[MAX_XFER_SIZE]; + + if (2 + msg[j].len > sizeof(obuf)) { + warn("i2c wr: len=%d is too big!\n", + msg[j].len); + return -EOPNOTSUPP; + } obuf[0] = msg[j].len + 1; obuf[1] = (msg[j].addr << 1); memcpy(obuf + 2, msg[j].buf, msg[j].len); @@ -955,9 +1025,10 @@ static struct ds3000_config dw2104_ds3000_config = { .demod_address = 0x68, }; -static struct ts2020_config dw2104_ts2020_config = { +static struct ts2020_config dw2104_ts2020_config = { .tuner_address = 0x60, .clk_out_div = 1, + .frequency_div = 1060000, }; static struct ds3000_config s660_ds3000_config = { @@ -966,6 +1037,12 @@ static struct ds3000_config s660_ds3000_config = { .set_lock_led = dw210x_led_ctrl, }; +static struct ts2020_config s660_ts2020_config = { + .tuner_address = 0x60, + .clk_out_div = 1, + .frequency_div = 1146000, +}; + static struct stv0900_config dw2104a_stv0900_config = { .demod_address = 0x6a, .demod_mode = 0, @@ -1205,7 +1282,7 @@ static int ds3000_frontend_attach(struct dvb_usb_adapter *d) if (d->fe_adap[0].fe == NULL) return -EIO; - dvb_attach(ts2020_attach, d->fe_adap[0].fe, &dw2104_ts2020_config, + dvb_attach(ts2020_attach, d->fe_adap[0].fe, &s660_ts2020_config, &d->dev->i2c_adap); st->old_set_voltage = d->fe_adap[0].fe->ops.set_voltage; @@ -1213,7 +1290,7 @@ static int ds3000_frontend_attach(struct dvb_usb_adapter *d) dw210x_op_rw(d->dev->udev, 0x8a, 0, 0, obuf, 2, DW210X_WRITE_MSG); - info("Attached ds3000+ds2020!\n"); + info("Attached ds3000+ts2020!\n"); return 0; } diff --git a/drivers/media/usb/em28xx/em28xx-camera.c b/drivers/media/usb/em28xx/em28xx-camera.c index 73cc50afa5e1..d666741797d4 100644 --- a/drivers/media/usb/em28xx/em28xx-camera.c +++ b/drivers/media/usb/em28xx/em28xx-camera.c @@ -22,6 +22,7 @@ #include <linux/i2c.h> #include <media/soc_camera.h> #include <media/mt9v011.h> +#include <media/v4l2-clk.h> #include <media/v4l2-common.h> #include "em28xx.h" @@ -47,6 +48,7 @@ static struct soc_camera_link camlink = { .bus_id = 0, .flags = 0, .module_name = "em28xx", + .unbalanced_power = true, }; @@ -325,13 +327,24 @@ int em28xx_detect_sensor(struct em28xx *dev) int em28xx_init_camera(struct em28xx *dev) { + char clk_name[V4L2_SUBDEV_NAME_SIZE]; + struct i2c_client *client = &dev->i2c_client[dev->def_i2c_bus]; + struct i2c_adapter *adap = &dev->i2c_adap[dev->def_i2c_bus]; + int ret = 0; + + v4l2_clk_name_i2c(clk_name, sizeof(clk_name), + i2c_adapter_id(adap), client->addr); + dev->clk = v4l2_clk_register_fixed(clk_name, "mclk", -EINVAL); + if (IS_ERR(dev->clk)) + return PTR_ERR(dev->clk); + switch (dev->em28xx_sensor) { case EM28XX_MT9V011: { struct mt9v011_platform_data pdata; struct i2c_board_info mt9v011_info = { .type = "mt9v011", - .addr = dev->i2c_client[dev->def_i2c_bus].addr, + .addr = client->addr, .platform_data = &pdata, }; @@ -352,10 +365,11 @@ int em28xx_init_camera(struct em28xx *dev) dev->sensor_xtal = 4300000; pdata.xtal = dev->sensor_xtal; if (NULL == - v4l2_i2c_new_subdev_board(&dev->v4l2_dev, - &dev->i2c_adap[dev->def_i2c_bus], - &mt9v011_info, NULL)) - return -ENODEV; + v4l2_i2c_new_subdev_board(&dev->v4l2_dev, adap, + &mt9v011_info, NULL)) { + ret = -ENODEV; + break; + } /* probably means GRGB 16 bit bayer */ dev->vinmode = 0x0d; dev->vinctl = 0x00; @@ -391,7 +405,7 @@ int em28xx_init_camera(struct em28xx *dev) struct i2c_board_info ov2640_info = { .type = "ov2640", .flags = I2C_CLIENT_SCCB, - .addr = dev->i2c_client[dev->def_i2c_bus].addr, + .addr = client->addr, .platform_data = &camlink, }; struct v4l2_mbus_framefmt fmt; @@ -408,9 +422,12 @@ int em28xx_init_camera(struct em28xx *dev) dev->sensor_yres = 480; subdev = - v4l2_i2c_new_subdev_board(&dev->v4l2_dev, - &dev->i2c_adap[dev->def_i2c_bus], + v4l2_i2c_new_subdev_board(&dev->v4l2_dev, adap, &ov2640_info, NULL); + if (NULL == subdev) { + ret = -ENODEV; + break; + } fmt.code = V4L2_MBUS_FMT_YUYV8_2X8; fmt.width = 640; @@ -427,8 +444,13 @@ int em28xx_init_camera(struct em28xx *dev) } case EM28XX_NOSENSOR: default: - return -EINVAL; + ret = -EINVAL; } - return 0; + if (ret < 0) { + v4l2_clk_unregister_fixed(dev->clk); + dev->clk = NULL; + } + + return ret; } diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index dc65742c4bbc..a5196697627f 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -36,6 +36,7 @@ #include <media/tvaudio.h> #include <media/i2c-addr.h> #include <media/tveeprom.h> +#include <media/v4l2-clk.h> #include <media/v4l2-common.h> #include "em28xx.h" @@ -95,8 +96,8 @@ static struct em28xx_reg_seq default_digital[] = { /* Board Hauppauge WinTV HVR 900 analog */ static struct em28xx_reg_seq hauppauge_wintv_hvr_900_analog[] = { {EM2820_R08_GPIO_CTRL, 0x2d, ~EM_GPIO_4, 10}, - {0x05, 0xff, 0x10, 10}, - { -1, -1, -1, -1}, + { 0x05, 0xff, 0x10, 10}, + { -1, -1, -1, -1}, }; /* Board Hauppauge WinTV HVR 900 digital */ @@ -104,20 +105,20 @@ static struct em28xx_reg_seq hauppauge_wintv_hvr_900_digital[] = { {EM2820_R08_GPIO_CTRL, 0x2e, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x04, 0x0f, 10}, {EM2880_R04_GPO, 0x0c, 0x0f, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Board Hauppauge WinTV HVR 900 (R2) digital */ static struct em28xx_reg_seq hauppauge_wintv_hvr_900R2_digital[] = { {EM2820_R08_GPIO_CTRL, 0x2e, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x0c, 0x0f, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Boards - EM2880 MSI DIGIVOX AD and EM2880_BOARD_MSI_DIGIVOX_AD_II */ static struct em28xx_reg_seq em2880_msi_digivox_ad_analog[] = { - {EM2820_R08_GPIO_CTRL, 0x69, ~EM_GPIO_4, 10}, - { -1, -1, -1, -1}, + {EM2820_R08_GPIO_CTRL, 0x69, ~EM_GPIO_4, 10}, + { -1, -1, -1, -1}, }; /* Boards - EM2880 MSI DIGIVOX AD and EM2880_BOARD_MSI_DIGIVOX_AD_II */ @@ -132,7 +133,7 @@ static struct em28xx_reg_seq em2882_kworld_315u_digital[] = { {EM2880_R04_GPO, 0x04, 0xff, 10}, {EM2880_R04_GPO, 0x0c, 0xff, 10}, {EM2820_R08_GPIO_CTRL, 0x7e, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq em2882_kworld_315u_tuner_gpio[] = { @@ -140,19 +141,19 @@ static struct em28xx_reg_seq em2882_kworld_315u_tuner_gpio[] = { {EM2880_R04_GPO, 0x0c, 0xff, 10}, {EM2880_R04_GPO, 0x08, 0xff, 10}, {EM2880_R04_GPO, 0x0c, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq kworld_330u_analog[] = { {EM2820_R08_GPIO_CTRL, 0x6d, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x00, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq kworld_330u_digital[] = { {EM2820_R08_GPIO_CTRL, 0x6e, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x08, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Evga inDtube @@ -170,11 +171,11 @@ static struct em28xx_reg_seq evga_indtube_digital[] = { {EM2820_R08_GPIO_CTRL, 0x7a, 0xff, 1}, {EM2880_R04_GPO, 0x04, 0xff, 10}, {EM2880_R04_GPO, 0x0c, 0xff, 1}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* - * KWorld PlusTV 340U and UB435-Q (ATSC) GPIOs map: + * KWorld PlusTV 340U, UB435-Q and UB435-Q V2 (ATSC) GPIOs map: * EM_GPIO_0 - currently unknown * EM_GPIO_1 - LED disable/enable (1 = off, 0 = on) * EM_GPIO_2 - currently unknown @@ -185,8 +186,8 @@ static struct em28xx_reg_seq evga_indtube_digital[] = { * EM_GPIO_7 - currently unknown */ static struct em28xx_reg_seq kworld_a340_digital[] = { - {EM2820_R08_GPIO_CTRL, 0x6d, ~EM_GPIO_4, 10}, - { -1, -1, -1, -1}, + {EM2820_R08_GPIO_CTRL, 0x6d, ~EM_GPIO_4, 10}, + { -1, -1, -1, -1}, }; /* Pinnacle Hybrid Pro eb1a:2881 */ @@ -205,13 +206,13 @@ static struct em28xx_reg_seq pinnacle_hybrid_pro_digital[] = { static struct em28xx_reg_seq terratec_cinergy_USB_XS_FR_analog[] = { {EM2820_R08_GPIO_CTRL, 0x6d, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x00, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq terratec_cinergy_USB_XS_FR_digital[] = { {EM2820_R08_GPIO_CTRL, 0x6e, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x08, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* eb1a:2868 Reddo DVB-C USB TV Box @@ -225,7 +226,7 @@ static struct em28xx_reg_seq reddo_dvb_c_usb_box[] = { {EM2820_R08_GPIO_CTRL, 0x7f, 0xff, 10}, {EM2820_R08_GPIO_CTRL, 0x6f, 0xff, 10}, {EM2820_R08_GPIO_CTRL, 0xff, 0xff, 10}, - {-1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Callback for the most boards */ @@ -233,23 +234,23 @@ static struct em28xx_reg_seq default_tuner_gpio[] = { {EM2820_R08_GPIO_CTRL, EM_GPIO_4, EM_GPIO_4, 10}, {EM2820_R08_GPIO_CTRL, 0, EM_GPIO_4, 10}, {EM2820_R08_GPIO_CTRL, EM_GPIO_4, EM_GPIO_4, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Mute/unmute */ static struct em28xx_reg_seq compro_unmute_tv_gpio[] = { - {EM2820_R08_GPIO_CTRL, 5, 7, 10}, - { -1, -1, -1, -1}, + {EM2820_R08_GPIO_CTRL, 5, 7, 10}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq compro_unmute_svid_gpio[] = { - {EM2820_R08_GPIO_CTRL, 4, 7, 10}, - { -1, -1, -1, -1}, + {EM2820_R08_GPIO_CTRL, 4, 7, 10}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq compro_mute_gpio[] = { - {EM2820_R08_GPIO_CTRL, 6, 7, 10}, - { -1, -1, -1, -1}, + {EM2820_R08_GPIO_CTRL, 6, 7, 10}, + { -1, -1, -1, -1}, }; /* Terratec AV350 */ @@ -279,21 +280,21 @@ static struct em28xx_reg_seq vc211a_enable[] = { static struct em28xx_reg_seq dikom_dk300_digital[] = { {EM2820_R08_GPIO_CTRL, 0x6e, ~EM_GPIO_4, 10}, {EM2880_R04_GPO, 0x08, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* Reset for the most [digital] boards */ static struct em28xx_reg_seq leadership_digital[] = { {EM2874_R80_GPIO_P0_CTRL, 0x70, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq leadership_reset[] = { {EM2874_R80_GPIO_P0_CTRL, 0xf0, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xb0, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xf0, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* 2013:024f PCTV nanoStick T2 290e @@ -304,7 +305,7 @@ static struct em28xx_reg_seq pctv_290e[] = { {EM2874_R80_GPIO_P0_CTRL, 0x00, 0xff, 80}, {EM2874_R80_GPIO_P0_CTRL, 0x40, 0xff, 80}, /* GPIO_6 = 1 */ {EM2874_R80_GPIO_P0_CTRL, 0xc0, 0xff, 80}, /* GPIO_7 = 1 */ - {-1, -1, -1, -1}, + { -1, -1, -1, -1}, }; #if 0 @@ -313,14 +314,14 @@ static struct em28xx_reg_seq terratec_h5_gpio[] = { {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xf2, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 50}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq terratec_h5_digital[] = { {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xa6, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; #endif @@ -335,12 +336,12 @@ static struct em28xx_reg_seq terratec_h5_digital[] = { * GPIO_7 - LED (green LED) */ static struct em28xx_reg_seq pctv_460e[] = { - {EM2874_R80_GPIO_P0_CTRL, 0x01, 0xff, 50}, - {0x0d, 0xff, 0xff, 50}, - {EM2874_R80_GPIO_P0_CTRL, 0x41, 0xff, 50}, /* GPIO_6=1 */ - {0x0d, 0x42, 0xff, 50}, - {EM2874_R80_GPIO_P0_CTRL, 0x61, 0xff, 50}, /* GPIO_5=1 */ - { -1, -1, -1, -1}, + {EM2874_R80_GPIO_P0_CTRL, 0x01, 0xff, 50}, + { 0x0d, 0xff, 0xff, 50}, + {EM2874_R80_GPIO_P0_CTRL, 0x41, 0xff, 50}, /* GPIO_6=1 */ + { 0x0d, 0x42, 0xff, 50}, + {EM2874_R80_GPIO_P0_CTRL, 0x61, 0xff, 50}, /* GPIO_5=1 */ + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq c3tech_digital_duo_digital[] = { @@ -352,7 +353,7 @@ static struct em28xx_reg_seq c3tech_digital_duo_digital[] = { {EM2874_R80_GPIO_P0_CTRL, 0xfe, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xbe, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xfe, 0xff, 20}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; #if 0 @@ -361,14 +362,14 @@ static struct em28xx_reg_seq hauppauge_930c_gpio[] = { {EM2874_R80_GPIO_P0_CTRL, 0x4f, 0xff, 10}, /* xc5000 reset */ {EM2874_R80_GPIO_P0_CTRL, 0x6f, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0x4f, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; static struct em28xx_reg_seq hauppauge_930c_digital[] = { {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 10}, {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xa6, 0xff, 10}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; #endif @@ -378,10 +379,10 @@ static struct em28xx_reg_seq hauppauge_930c_digital[] = { * GPIO_7 - LED, 0=active */ static struct em28xx_reg_seq maxmedia_ub425_tc[] = { - {EM2874_R80_GPIO_P0_CTRL, 0x83, 0xff, 100}, - {EM2874_R80_GPIO_P0_CTRL, 0xc3, 0xff, 100}, /* GPIO_6 = 1 */ - {EM2874_R80_GPIO_P0_CTRL, 0x43, 0xff, 000}, /* GPIO_7 = 0 */ - {-1, -1, -1, -1}, + {EM2874_R80_GPIO_P0_CTRL, 0x83, 0xff, 100}, + {EM2874_R80_GPIO_P0_CTRL, 0xc3, 0xff, 100}, /* GPIO_6 = 1 */ + {EM2874_R80_GPIO_P0_CTRL, 0x43, 0xff, 000}, /* GPIO_7 = 0 */ + { -1, -1, -1, -1}, }; /* 2304:0242 PCTV QuatroStick (510e) @@ -391,10 +392,10 @@ static struct em28xx_reg_seq maxmedia_ub425_tc[] = { * GPIO_7: LED, 1=active */ static struct em28xx_reg_seq pctv_510e[] = { - {EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100}, - {EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */ - {EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */ - { -1, -1, -1, -1}, + {EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100}, + {EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */ + {EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */ + { -1, -1, -1, -1}, }; /* 2013:0251 PCTV QuatroStick nano (520e) @@ -404,11 +405,11 @@ static struct em28xx_reg_seq pctv_510e[] = { * GPIO_7: LED, 1=active */ static struct em28xx_reg_seq pctv_520e[] = { - {EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100}, - {EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */ - {EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */ - {EM2874_R80_GPIO_P0_CTRL, 0xd4, 0xff, 000}, /* GPIO_7 = 1 */ - { -1, -1, -1, -1}, + {EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100}, + {EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */ + {EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */ + {EM2874_R80_GPIO_P0_CTRL, 0xd4, 0xff, 000}, /* GPIO_7 = 1 */ + { -1, -1, -1, -1}, }; /* @@ -2030,6 +2031,18 @@ struct em28xx_board em28xx_boards[] = { .i2c_speed = EM28XX_I2C_CLK_WAIT_ENABLE | EM28XX_I2C_FREQ_400_KHZ, }, + /* + * 1b80:e346 KWorld USB ATSC TV Stick UB435-Q V2 + * Empia EM2874B + LG DT3305 + NXP TDA18271HDC2 + */ + [EM2874_BOARD_KWORLD_UB435Q_V2] = { + .name = "KWorld USB ATSC TV Stick UB435-Q V2", + .tuner_type = TUNER_ABSENT, + .has_dvb = 1, + .dvb_gpio = kworld_a340_digital, + .tuner_gpio = default_tuner_gpio, + .def_i2c_bus = 1, + }, }; const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards); @@ -2173,6 +2186,8 @@ struct usb_device_id em28xx_id_table[] = { .driver_info = EM2860_BOARD_GADMEI_UTV330 }, { USB_DEVICE(0x1b80, 0xa340), .driver_info = EM2870_BOARD_KWORLD_A340 }, + { USB_DEVICE(0x1b80, 0xe346), + .driver_info = EM2874_BOARD_KWORLD_UB435Q_V2 }, { USB_DEVICE(0x2013, 0x024f), .driver_info = EM28174_BOARD_PCTV_290E }, { USB_DEVICE(0x2013, 0x024c), @@ -2857,6 +2872,8 @@ void em28xx_release_resources(struct em28xx *dev) if (dev->def_i2c_bus) em28xx_i2c_unregister(dev, 1); em28xx_i2c_unregister(dev, 0); + if (dev->clk) + v4l2_clk_unregister_fixed(dev->clk); v4l2_ctrl_handler_free(&dev->ctrl_handler); diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c index bb1e8dca80cd..344042bb845c 100644 --- a/drivers/media/usb/em28xx/em28xx-dvb.c +++ b/drivers/media/usb/em28xx/em28xx-dvb.c @@ -298,6 +298,18 @@ static struct lgdt3305_config em2870_lgdt3304_dev = { .qam_if_khz = 4000, }; +static struct lgdt3305_config em2874_lgdt3305_dev = { + .i2c_addr = 0x0e, + .demod_chip = LGDT3305, + .spectral_inversion = 1, + .deny_i2c_rptr = 0, + .mpeg_mode = LGDT3305_MPEG_SERIAL, + .tpclk_edge = LGDT3305_TPCLK_FALLING_EDGE, + .tpvalid_polarity = LGDT3305_TP_VALID_HIGH, + .vsb_if_khz = 3250, + .qam_if_khz = 4000, +}; + static struct s921_config sharp_isdbt = { .demod_address = 0x30 >> 1 }; @@ -329,6 +341,11 @@ static struct tda18271_config kworld_a340_config = { .std_map = &kworld_a340_std_map, }; +static struct tda18271_config kworld_ub435q_v2_config = { + .std_map = &kworld_a340_std_map, + .gate = TDA18271_GATE_DIGITAL, +}; + static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = { .demod_address = (0x1e >> 1), .no_tuner = 1, @@ -384,7 +401,10 @@ static struct drxk_config maxmedia_ub425_tc_drxk = { .adr = 0x29, .single_master = 1, .no_i2c_bridge = 1, + .microcode_name = "dvb-demod-drxk-01.fw", + .chunk_size = 62, .load_firmware_sync = true, + .qam_demod_parameter_count = 2, }; static struct drxk_config pctv_520e_drxk = { @@ -424,7 +444,7 @@ static void hauppauge_hvr930c_init(struct em28xx *dev) {EM2874_R80_GPIO_P0_CTRL, 0xff, 0xff, 0x65}, {EM2874_R80_GPIO_P0_CTRL, 0xfb, 0xff, 0x32}, {EM2874_R80_GPIO_P0_CTRL, 0xff, 0xff, 0xb8}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct em28xx_reg_seq hauppauge_hvr930c_end[] = { {EM2874_R80_GPIO_P0_CTRL, 0xef, 0xff, 0x01}, @@ -439,7 +459,7 @@ static void hauppauge_hvr930c_init(struct em28xx *dev) {EM2874_R80_GPIO_P0_CTRL, 0xcf, 0xff, 0x0b}, {EM2874_R80_GPIO_P0_CTRL, 0xef, 0xff, 0x65}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct { @@ -491,13 +511,13 @@ static void terratec_h5_init(struct em28xx *dev) {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xf2, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 100}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct em28xx_reg_seq terratec_h5_end[] = { {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xa6, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 100}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct { unsigned char r[4]; @@ -547,12 +567,12 @@ static void terratec_htc_stick_init(struct em28xx *dev) {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 100}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct em28xx_reg_seq terratec_htc_stick_end[] = { {EM2874_R80_GPIO_P0_CTRL, 0xb6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xf6, 0xff, 50}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* @@ -594,13 +614,13 @@ static void terratec_htc_usb_xs_init(struct em28xx *dev) {EM2874_R80_GPIO_P0_CTRL, 0xb2, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xb2, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xb6, 0xff, 100}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; struct em28xx_reg_seq terratec_htc_usb_xs_end[] = { {EM2874_R80_GPIO_P0_CTRL, 0xa6, 0xff, 100}, {EM2874_R80_GPIO_P0_CTRL, 0xa6, 0xff, 50}, {EM2874_R80_GPIO_P0_CTRL, 0xe6, 0xff, 100}, - { -1, -1, -1, -1}, + { -1, -1, -1, -1}, }; /* @@ -1227,18 +1247,14 @@ static int em28xx_dvb_init(struct em28xx *dev) dvb->fe[0]->ops.i2c_gate_ctrl = NULL; /* attach tuner */ - if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], - &dev->i2c_adap[dev->def_i2c_bus], 0x60)) { + if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60, + &dev->i2c_adap[dev->def_i2c_bus], + &em28xx_cxd2820r_tda18271_config)) { dvb_frontend_detach(dvb->fe[0]); result = -EINVAL; goto out_free; } } - - /* TODO: we need drx-3913k firmware in order to support DVB-T */ - em28xx_info("MaxMedia UB425-TC/Delock 61959: only DVB-C " \ - "supported by that driver version\n"); - break; case EM2884_BOARD_PCTV_510E: case EM2884_BOARD_PCTV_520E: @@ -1297,6 +1313,23 @@ static int em28xx_dvb_init(struct em28xx *dev) goto out_free; } break; + case EM2874_BOARD_KWORLD_UB435Q_V2: + dvb->fe[0] = dvb_attach(lgdt3305_attach, + &em2874_lgdt3305_dev, + &dev->i2c_adap[dev->def_i2c_bus]); + if (!dvb->fe[0]) { + result = -EINVAL; + goto out_free; + } + + /* Attach the demodulator. */ + if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60, + &dev->i2c_adap[dev->def_i2c_bus], + &kworld_ub435q_v2_config)) { + result = -EINVAL; + goto out_free; + } + break; default: em28xx_errdev("/2: The frontend of your DVB/ATSC card" " isn't supported yet\n"); diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index 9d103344f34a..fc5d60efd4ab 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -638,7 +638,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) if (rc) return rc; - if (dev->streaming_users++ == 0) { + if (dev->streaming_users == 0) { /* First active streaming user, so allocate all the URBs */ /* Allocate the USB bandwidth */ @@ -657,7 +657,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) dev->packet_multiplier, em28xx_urb_data_copy); if (rc < 0) - goto fail; + return rc; /* * djh: it's not clear whether this code is still needed. I'm @@ -675,7 +675,8 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count) v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); } -fail: + dev->streaming_users++; + return rc; } diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index 205e9038b1c0..f8726ad5d0a8 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -131,6 +131,7 @@ #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88 #define EM2874_BOARD_DELOCK_61959 89 +#define EM2874_BOARD_KWORLD_UB435Q_V2 90 /* Limits minimum and default number of buffers */ #define EM28XX_MIN_BUF 4 @@ -492,6 +493,7 @@ struct em28xx { struct v4l2_device v4l2_dev; struct v4l2_ctrl_handler ctrl_handler; + struct v4l2_clk *clk; struct em28xx_board board; /* Webcam specific fields */ diff --git a/drivers/media/usb/gspca/conex.c b/drivers/media/usb/gspca/conex.c index 38714df31ac4..2e15c80d6e3d 100644 --- a/drivers/media/usb/gspca/conex.c +++ b/drivers/media/usb/gspca/conex.c @@ -783,7 +783,8 @@ static int sd_start(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x22); /* JPEG 411 */ jpeg_set_qual(sd->jpeg_hdr, QUALITY); diff --git a/drivers/media/usb/gspca/cpia1.c b/drivers/media/usb/gspca/cpia1.c index 064b53043b15..f23df4a9d8c5 100644 --- a/drivers/media/usb/gspca/cpia1.c +++ b/drivers/media/usb/gspca/cpia1.c @@ -1553,9 +1553,9 @@ static int sd_start(struct gspca_dev *gspca_dev) sd->params.format.videoSize = VIDEOSIZE_CIF; sd->params.roi.colEnd = sd->params.roi.colStart + - (gspca_dev->width >> 3); + (gspca_dev->pixfmt.width >> 3); sd->params.roi.rowEnd = sd->params.roi.rowStart + - (gspca_dev->height >> 2); + (gspca_dev->pixfmt.height >> 2); /* And now set the camera to a known state */ ret = do_command(gspca_dev, CPIA_COMMAND_SetGrabMode, diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c index 048507b27bb2..f3a7ace0fac9 100644 --- a/drivers/media/usb/gspca/gspca.c +++ b/drivers/media/usb/gspca/gspca.c @@ -504,8 +504,7 @@ static int frame_alloc(struct gspca_dev *gspca_dev, struct file *file, unsigned int frsz; int i; - i = gspca_dev->curr_mode; - frsz = gspca_dev->cam.cam_mode[i].sizeimage; + frsz = gspca_dev->pixfmt.sizeimage; PDEBUG(D_STREAM, "frame alloc frsz: %d", frsz); frsz = PAGE_ALIGN(frsz); if (count >= GSPCA_MAX_FRAMES) @@ -627,16 +626,14 @@ static struct usb_host_endpoint *alt_xfer(struct usb_host_interface *alt, static u32 which_bandwidth(struct gspca_dev *gspca_dev) { u32 bandwidth; - int i; /* get the (max) image size */ - i = gspca_dev->curr_mode; - bandwidth = gspca_dev->cam.cam_mode[i].sizeimage; + bandwidth = gspca_dev->pixfmt.sizeimage; /* if the image is compressed, estimate its mean size */ if (!gspca_dev->cam.needs_full_bandwidth && - bandwidth < gspca_dev->cam.cam_mode[i].width * - gspca_dev->cam.cam_mode[i].height) + bandwidth < gspca_dev->pixfmt.width * + gspca_dev->pixfmt.height) bandwidth = bandwidth * 3 / 8; /* 0.375 */ /* estimate the frame rate */ @@ -650,7 +647,7 @@ static u32 which_bandwidth(struct gspca_dev *gspca_dev) /* don't hope more than 15 fps with USB 1.1 and * image resolution >= 640x480 */ - if (gspca_dev->width >= 640 + if (gspca_dev->pixfmt.width >= 640 && gspca_dev->dev->speed == USB_SPEED_FULL) bandwidth *= 15; /* 15 fps */ else @@ -982,9 +979,7 @@ static void gspca_set_default_mode(struct gspca_dev *gspca_dev) i = gspca_dev->cam.nmodes - 1; /* take the highest mode */ gspca_dev->curr_mode = i; - gspca_dev->width = gspca_dev->cam.cam_mode[i].width; - gspca_dev->height = gspca_dev->cam.cam_mode[i].height; - gspca_dev->pixfmt = gspca_dev->cam.cam_mode[i].pixelformat; + gspca_dev->pixfmt = gspca_dev->cam.cam_mode[i]; /* does nothing if ctrl_handler == NULL */ v4l2_ctrl_handler_setup(gspca_dev->vdev.ctrl_handler); @@ -1105,10 +1100,8 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { struct gspca_dev *gspca_dev = video_drvdata(file); - int mode; - mode = gspca_dev->curr_mode; - fmt->fmt.pix = gspca_dev->cam.cam_mode[mode]; + fmt->fmt.pix = gspca_dev->pixfmt; /* some drivers use priv internally, zero it before giving it to userspace */ fmt->fmt.pix.priv = 0; @@ -1140,6 +1133,12 @@ static int try_fmt_vid_cap(struct gspca_dev *gspca_dev, mode = mode2; } fmt->fmt.pix = gspca_dev->cam.cam_mode[mode]; + if (gspca_dev->sd_desc->try_fmt) { + /* pass original resolution to subdriver try_fmt */ + fmt->fmt.pix.width = w; + fmt->fmt.pix.height = h; + gspca_dev->sd_desc->try_fmt(gspca_dev, fmt); + } /* some drivers use priv internally, zero it before giving it to userspace */ fmt->fmt.pix.priv = 0; @@ -1178,19 +1177,16 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, goto out; } - if (ret == gspca_dev->curr_mode) { - ret = 0; - goto out; /* same mode */ - } - if (gspca_dev->streaming) { ret = -EBUSY; goto out; } - gspca_dev->width = fmt->fmt.pix.width; - gspca_dev->height = fmt->fmt.pix.height; - gspca_dev->pixfmt = fmt->fmt.pix.pixelformat; gspca_dev->curr_mode = ret; + if (gspca_dev->sd_desc->try_fmt) + /* subdriver try_fmt can modify format parameters */ + gspca_dev->pixfmt = fmt->fmt.pix; + else + gspca_dev->pixfmt = gspca_dev->cam.cam_mode[ret]; ret = 0; out: @@ -1205,6 +1201,9 @@ static int vidioc_enum_framesizes(struct file *file, void *priv, int i; __u32 index = 0; + if (gspca_dev->sd_desc->enum_framesizes) + return gspca_dev->sd_desc->enum_framesizes(gspca_dev, fsize); + for (i = 0; i < gspca_dev->cam.nmodes; i++) { if (fsize->pixel_format != gspca_dev->cam.cam_mode[i].pixelformat) @@ -1471,8 +1470,9 @@ static int vidioc_streamon(struct file *file, void *priv, if (ret < 0) goto out; } - PDEBUG_MODE(gspca_dev, D_STREAM, "stream on OK", gspca_dev->pixfmt, - gspca_dev->width, gspca_dev->height); + PDEBUG_MODE(gspca_dev, D_STREAM, "stream on OK", + gspca_dev->pixfmt.pixelformat, + gspca_dev->pixfmt.width, gspca_dev->pixfmt.height); ret = 0; out: mutex_unlock(&gspca_dev->queue_lock); diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h index ac0b11f46f50..300642dc1a17 100644 --- a/drivers/media/usb/gspca/gspca.h +++ b/drivers/media/usb/gspca/gspca.h @@ -88,6 +88,10 @@ typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev, typedef int (*cam_int_pkt_op) (struct gspca_dev *gspca_dev, u8 *data, int len); +typedef void (*cam_format_op) (struct gspca_dev *gspca_dev, + struct v4l2_format *fmt); +typedef int (*cam_frmsize_op) (struct gspca_dev *gspca_dev, + struct v4l2_frmsizeenum *fsize); /* subdriver description */ struct sd_desc { @@ -109,6 +113,8 @@ struct sd_desc { cam_set_jpg_op set_jcomp; cam_streamparm_op get_streamparm; cam_streamparm_op set_streamparm; + cam_format_op try_fmt; + cam_frmsize_op enum_framesizes; #ifdef CONFIG_VIDEO_ADV_DEBUG cam_set_reg_op set_register; cam_get_reg_op get_register; @@ -183,9 +189,7 @@ struct gspca_dev { __u8 streaming; /* protected by both mutexes (*) */ __u8 curr_mode; /* current camera mode */ - __u32 pixfmt; /* current mode parameters */ - __u16 width; - __u16 height; + struct v4l2_pix_format pixfmt; /* current mode parameters */ __u32 sequence; /* frame sequence number */ wait_queue_head_t wq; /* wait queue */ diff --git a/drivers/media/usb/gspca/jeilinj.c b/drivers/media/usb/gspca/jeilinj.c index 8da3dde38385..19736e237b37 100644 --- a/drivers/media/usb/gspca/jeilinj.c +++ b/drivers/media/usb/gspca/jeilinj.c @@ -378,11 +378,12 @@ static int sd_start(struct gspca_dev *gspca_dev) struct sd *dev = (struct sd *) gspca_dev; /* create the JPEG header */ - jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(dev->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x21); /* JPEG 422 */ jpeg_set_qual(dev->jpeg_hdr, dev->quality); PDEBUG(D_STREAM, "Start streaming at %dx%d", - gspca_dev->height, gspca_dev->width); + gspca_dev->pixfmt.height, gspca_dev->pixfmt.width); jlj_start(gspca_dev); return gspca_dev->usb_err; } diff --git a/drivers/media/usb/gspca/jl2005bcd.c b/drivers/media/usb/gspca/jl2005bcd.c index fdaeeb14453f..5b481fa43099 100644 --- a/drivers/media/usb/gspca/jl2005bcd.c +++ b/drivers/media/usb/gspca/jl2005bcd.c @@ -455,7 +455,7 @@ static int sd_start(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; sd->cap_mode = gspca_dev->cam.cam_mode; - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 640: PDEBUG(D_STREAM, "Start streaming at vga resolution"); jl2005c_stream_start_vga_lg(gspca_dev); diff --git a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c index cfa4663f8934..27fcef11aef4 100644 --- a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c +++ b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c @@ -266,7 +266,7 @@ static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev) return err; data[0] = MT9M111_RMB_OVER_SIZED; - if (gspca_dev->width == 640) { + if (gspca_dev->pixfmt.width == 640) { data[1] = MT9M111_RMB_ROW_SKIP_2X | MT9M111_RMB_COLUMN_SKIP_2X | (hflip << 1) | vflip; diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c index ff2c5abf115b..779a8785f421 100644 --- a/drivers/media/usb/gspca/mars.c +++ b/drivers/media/usb/gspca/mars.c @@ -254,7 +254,8 @@ static int sd_start(struct gspca_dev *gspca_dev) int i; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x21); /* JPEG 422 */ jpeg_set_qual(sd->jpeg_hdr, QUALITY); @@ -270,8 +271,8 @@ static int sd_start(struct gspca_dev *gspca_dev) data[0] = 0x00; /* address */ data[1] = 0x0c | 0x01; /* reg 0 */ data[2] = 0x01; /* reg 1 */ - data[3] = gspca_dev->width / 8; /* h_size , reg 2 */ - data[4] = gspca_dev->height / 8; /* v_size , reg 3 */ + data[3] = gspca_dev->pixfmt.width / 8; /* h_size , reg 2 */ + data[4] = gspca_dev->pixfmt.height / 8; /* v_size , reg 3 */ data[5] = 0x30; /* reg 4, MI, PAS5101 : * 0x30 for 24mhz , 0x28 for 12mhz */ data[6] = 0x02; /* reg 5, H start - was 0x04 */ diff --git a/drivers/media/usb/gspca/mr97310a.c b/drivers/media/usb/gspca/mr97310a.c index 68bb2f359666..f006e29ca019 100644 --- a/drivers/media/usb/gspca/mr97310a.c +++ b/drivers/media/usb/gspca/mr97310a.c @@ -521,7 +521,7 @@ static int start_cif_cam(struct gspca_dev *gspca_dev) if (sd->sensor_type) data[5] = 0xbb; - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: data[9] |= 0x04; /* reg 8, 2:1 scale down from 320 */ /* fall thru */ @@ -618,7 +618,7 @@ static int start_vga_cam(struct gspca_dev *gspca_dev) data[10] = 0x18; } - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: data[9] |= 0x0c; /* reg 8, 4:1 scale down */ /* fall thru */ @@ -847,7 +847,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 expo, s32 min_clockdiv) u8 clockdiv = (60 * expo + 7999) / 8000; /* Limit framerate to not exceed usb bandwidth */ - if (clockdiv < min_clockdiv && gspca_dev->width >= 320) + if (clockdiv < min_clockdiv && gspca_dev->pixfmt.width >= 320) clockdiv = min_clockdiv; else if (clockdiv < 2) clockdiv = 2; diff --git a/drivers/media/usb/gspca/nw80x.c b/drivers/media/usb/gspca/nw80x.c index 44c9964b1b3e..599f755e75b8 100644 --- a/drivers/media/usb/gspca/nw80x.c +++ b/drivers/media/usb/gspca/nw80x.c @@ -1708,7 +1708,7 @@ static void setautogain(struct gspca_dev *gspca_dev, s32 val) reg_r(gspca_dev, 0x1004, 1); if (gspca_dev->usb_buf[0] & 0x04) { /* if AE_FULL_FRM */ - sd->ae_res = gspca_dev->width * gspca_dev->height; + sd->ae_res = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height; } else { /* get the AE window size */ reg_r(gspca_dev, 0x1011, 8); w = (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0] @@ -1717,7 +1717,8 @@ static void setautogain(struct gspca_dev *gspca_dev, s32 val) - (gspca_dev->usb_buf[7] << 8) - gspca_dev->usb_buf[6]; sd->ae_res = h * w; if (sd->ae_res == 0) - sd->ae_res = gspca_dev->width * gspca_dev->height; + sd->ae_res = gspca_dev->pixfmt.width * + gspca_dev->pixfmt.height; } } @@ -1856,21 +1857,21 @@ static int sd_start(struct gspca_dev *gspca_dev) reg_w_buf(gspca_dev, cmd); switch (sd->webcam) { case P35u: - if (gspca_dev->width == 320) + if (gspca_dev->pixfmt.width == 320) reg_w_buf(gspca_dev, nw801_start_qvga); else reg_w_buf(gspca_dev, nw801_start_vga); reg_w_buf(gspca_dev, nw801_start_2); break; case Kr651us: - if (gspca_dev->width == 320) + if (gspca_dev->pixfmt.width == 320) reg_w_buf(gspca_dev, kr651_start_qvga); else reg_w_buf(gspca_dev, kr651_start_vga); reg_w_buf(gspca_dev, kr651_start_2); break; case Proscope: - if (gspca_dev->width == 320) + if (gspca_dev->pixfmt.width == 320) reg_w_buf(gspca_dev, proscope_start_qvga); else reg_w_buf(gspca_dev, proscope_start_vga); diff --git a/drivers/media/usb/gspca/ov519.c b/drivers/media/usb/gspca/ov519.c index 8937d79fd176..c95f32a0c02b 100644 --- a/drivers/media/usb/gspca/ov519.c +++ b/drivers/media/usb/gspca/ov519.c @@ -3468,7 +3468,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev) switch (sd->bridge) { case BRIDGE_OVFX2: - if (gspca_dev->width != 800) + if (gspca_dev->pixfmt.width != 800) gspca_dev->cam.bulk_size = OVFX2_BULK_SIZE; else gspca_dev->cam.bulk_size = 7 * 4096; @@ -3507,8 +3507,8 @@ static void ov511_mode_init_regs(struct sd *sd) /* Here I'm assuming that snapshot size == image size. * I hope that's always true. --claudio */ - hsegs = (sd->gspca_dev.width >> 3) - 1; - vsegs = (sd->gspca_dev.height >> 3) - 1; + hsegs = (sd->gspca_dev.pixfmt.width >> 3) - 1; + vsegs = (sd->gspca_dev.pixfmt.height >> 3) - 1; reg_w(sd, R511_CAM_PXCNT, hsegs); reg_w(sd, R511_CAM_LNCNT, vsegs); @@ -3541,7 +3541,7 @@ static void ov511_mode_init_regs(struct sd *sd) case SEN_OV7640: case SEN_OV7648: case SEN_OV76BE: - if (sd->gspca_dev.width == 320) + if (sd->gspca_dev.pixfmt.width == 320) interlaced = 1; /* Fall through */ case SEN_OV6630: @@ -3551,7 +3551,7 @@ static void ov511_mode_init_regs(struct sd *sd) case 30: case 25: /* Not enough bandwidth to do 640x480 @ 30 fps */ - if (sd->gspca_dev.width != 640) { + if (sd->gspca_dev.pixfmt.width != 640) { sd->clockdiv = 0; break; } @@ -3584,7 +3584,8 @@ static void ov511_mode_init_regs(struct sd *sd) /* Check if we have enough bandwidth to disable compression */ fps = (interlaced ? 60 : 30) / (sd->clockdiv + 1) + 1; - needed = fps * sd->gspca_dev.width * sd->gspca_dev.height * 3 / 2; + needed = fps * sd->gspca_dev.pixfmt.width * + sd->gspca_dev.pixfmt.height * 3 / 2; /* 1000 isoc packets/sec */ if (needed > 1000 * packet_size) { /* Enable Y and UV quantization and compression */ @@ -3646,8 +3647,8 @@ static void ov518_mode_init_regs(struct sd *sd) reg_w(sd, 0x38, 0x80); } - hsegs = sd->gspca_dev.width / 16; - vsegs = sd->gspca_dev.height / 4; + hsegs = sd->gspca_dev.pixfmt.width / 16; + vsegs = sd->gspca_dev.pixfmt.height / 4; reg_w(sd, 0x29, hsegs); reg_w(sd, 0x2a, vsegs); @@ -3686,7 +3687,8 @@ static void ov518_mode_init_regs(struct sd *sd) * happened to be with revision < 2 cams using an * OV7620 and revision 2 cams using an OV7620AE. */ - if (sd->revision > 0 && sd->gspca_dev.width == 640) { + if (sd->revision > 0 && + sd->gspca_dev.pixfmt.width == 640) { reg_w(sd, 0x20, 0x60); reg_w(sd, 0x21, 0x1f); } else { @@ -3812,8 +3814,8 @@ static void ov519_mode_init_regs(struct sd *sd) break; } - reg_w(sd, OV519_R10_H_SIZE, sd->gspca_dev.width >> 4); - reg_w(sd, OV519_R11_V_SIZE, sd->gspca_dev.height >> 3); + reg_w(sd, OV519_R10_H_SIZE, sd->gspca_dev.pixfmt.width >> 4); + reg_w(sd, OV519_R11_V_SIZE, sd->gspca_dev.pixfmt.height >> 3); if (sd->sensor == SEN_OV7670 && sd->gspca_dev.cam.cam_mode[sd->gspca_dev.curr_mode].priv) reg_w(sd, OV519_R12_X_OFFSETL, 0x04); @@ -3947,14 +3949,16 @@ static void mode_init_ov_sensor_regs(struct sd *sd) } case SEN_OV3610: if (qvga) { - xstart = (1040 - gspca_dev->width) / 2 + (0x1f << 4); - ystart = (776 - gspca_dev->height) / 2; + xstart = (1040 - gspca_dev->pixfmt.width) / 2 + + (0x1f << 4); + ystart = (776 - gspca_dev->pixfmt.height) / 2; } else { - xstart = (2076 - gspca_dev->width) / 2 + (0x10 << 4); - ystart = (1544 - gspca_dev->height) / 2; + xstart = (2076 - gspca_dev->pixfmt.width) / 2 + + (0x10 << 4); + ystart = (1544 - gspca_dev->pixfmt.height) / 2; } - xend = xstart + gspca_dev->width; - yend = ystart + gspca_dev->height; + xend = xstart + gspca_dev->pixfmt.width; + yend = ystart + gspca_dev->pixfmt.height; /* Writing to the COMH register resets the other windowing regs to their default values, so we must do this first. */ i2c_w_mask(sd, 0x12, qvga ? 0x40 : 0x00, 0xf0); @@ -4229,8 +4233,8 @@ static int sd_start(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; /* Default for most bridges, allow bridge_mode_init_regs to override */ - sd->sensor_width = sd->gspca_dev.width; - sd->sensor_height = sd->gspca_dev.height; + sd->sensor_width = sd->gspca_dev.pixfmt.width; + sd->sensor_height = sd->gspca_dev.pixfmt.height; switch (sd->bridge) { case BRIDGE_OV511: @@ -4345,12 +4349,13 @@ static void ov511_pkt_scan(struct gspca_dev *gspca_dev, ov51x_handle_button(gspca_dev, (in[8] >> 2) & 1); if (in[8] & 0x80) { /* Frame end */ - if ((in[9] + 1) * 8 != gspca_dev->width || - (in[10] + 1) * 8 != gspca_dev->height) { + if ((in[9] + 1) * 8 != gspca_dev->pixfmt.width || + (in[10] + 1) * 8 != gspca_dev->pixfmt.height) { PERR("Invalid frame size, got: %dx%d," " requested: %dx%d\n", (in[9] + 1) * 8, (in[10] + 1) * 8, - gspca_dev->width, gspca_dev->height); + gspca_dev->pixfmt.width, + gspca_dev->pixfmt.height); gspca_dev->last_packet_type = DISCARD_PACKET; return; } @@ -4470,7 +4475,8 @@ static void ovfx2_pkt_scan(struct gspca_dev *gspca_dev, if (sd->first_frame) { sd->first_frame--; if (gspca_dev->image_len < - sd->gspca_dev.width * sd->gspca_dev.height) + sd->gspca_dev.pixfmt.width * + sd->gspca_dev.pixfmt.height) gspca_dev->last_packet_type = DISCARD_PACKET; } gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0); diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c index 03a33c46ca2c..90f0d637cd9d 100644 --- a/drivers/media/usb/gspca/ov534.c +++ b/drivers/media/usb/gspca/ov534.c @@ -1440,9 +1440,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, /* If this packet is marked as EOF, end the frame */ } else if (data[1] & UVC_STREAM_EOF) { sd->last_pts = 0; - if (gspca_dev->pixfmt == V4L2_PIX_FMT_YUYV + if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV && gspca_dev->image_len + len - 12 != - gspca_dev->width * gspca_dev->height * 2) { + gspca_dev->pixfmt.width * + gspca_dev->pixfmt.height * 2) { PDEBUG(D_PACK, "wrong sized frame"); goto discard; } diff --git a/drivers/media/usb/gspca/ov534_9.c b/drivers/media/usb/gspca/ov534_9.c index c4cd028fe0b4..47085cf2d723 100644 --- a/drivers/media/usb/gspca/ov534_9.c +++ b/drivers/media/usb/gspca/ov534_9.c @@ -59,6 +59,7 @@ enum sensors { SENSOR_OV965x, /* ov9657 */ SENSOR_OV971x, /* ov9712 */ SENSOR_OV562x, /* ov5621 */ + SENSOR_OV361x, /* ov3610 */ NSENSORS }; @@ -106,6 +107,274 @@ static const struct v4l2_pix_format ov562x_mode[] = { } }; +enum ov361x { + ov361x_2048 = 0, + ov361x_1600, + ov361x_1024, + ov361x_640, + ov361x_320, + ov361x_160, + ov361x_last +}; + +static const struct v4l2_pix_format ov361x_mode[] = { + {0x800, 0x600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 0x800, + .sizeimage = 0x800 * 0x600, + .colorspace = V4L2_COLORSPACE_SRGB}, + {1600, 1200, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 1600, + .sizeimage = 1600 * 1200, + .colorspace = V4L2_COLORSPACE_SRGB}, + {1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 768, + .sizeimage = 1024 * 768, + .colorspace = V4L2_COLORSPACE_SRGB}, + {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 640, + .sizeimage = 640 * 480, + .colorspace = V4L2_COLORSPACE_SRGB}, + {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 320, + .sizeimage = 320 * 240, + .colorspace = V4L2_COLORSPACE_SRGB}, + {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, + .bytesperline = 160, + .sizeimage = 160 * 120, + .colorspace = V4L2_COLORSPACE_SRGB} +}; + +static const u8 ov361x_start_2048[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0c}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x00}, + {0x17, 0x10}, + {0x18, 0x90}, + {0x19, 0x00}, + {0x1a, 0xc0}, +}; +static const u8 ov361x_bridge_start_2048[][2] = { + {0xf1, 0x60}, + {0x88, 0x00}, + {0x89, 0x08}, + {0x8a, 0x00}, + {0x8b, 0x06}, + {0x8c, 0x01}, + {0x8d, 0x10}, + {0x1c, 0x00}, + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, + {0x1d, 0x2e}, + {0x1d, 0x1e}, +}; + +static const u8 ov361x_start_1600[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0C}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x00}, + {0x17, 0x10}, + {0x18, 0x90}, + {0x19, 0x00}, + {0x1a, 0xc0}, +}; +static const u8 ov361x_bridge_start_1600[][2] = { + {0xf1, 0x60}, /* Hsize[7:0] */ + {0x88, 0x00}, /* Hsize[15:8] Write Only, can't read */ + {0x89, 0x08}, /* Vsize[7:0] */ + {0x8a, 0x00}, /* Vsize[15:8] Write Only, can't read */ + {0x8b, 0x06}, /* for Iso */ + {0x8c, 0x01}, /* RAW input */ + {0x8d, 0x10}, + {0x1c, 0x00}, /* RAW output, Iso transfer */ + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, /* turn off JPEG, Iso mode */ + {0x1d, 0x2e}, /* for Iso */ + {0x1d, 0x1e}, +}; + +static const u8 ov361x_start_1024[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0C}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x40}, + {0x17, 0x1f}, + {0x18, 0x5f}, + {0x19, 0x00}, + {0x1a, 0x68}, +}; +static const u8 ov361x_bridge_start_1024[][2] = { + {0xf1, 0x60}, /* Hsize[7:0] */ + {0x88, 0x00}, /* Hsize[15:8] Write Only, can't read */ + {0x89, 0x04}, /* Vsize[7:0] */ + {0x8a, 0x00}, /* Vsize[15:8] Write Only, can't read */ + {0x8b, 0x03}, /* for Iso */ + {0x8c, 0x01}, /* RAW input */ + {0x8d, 0x10}, + {0x1c, 0x00}, /* RAW output, Iso transfer */ + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, /* turn off JPEG, Iso mode */ + {0x1d, 0x2e}, /* for Iso */ + {0x1d, 0x1e}, +}; + +static const u8 ov361x_start_640[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0C}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x40}, + {0x17, 0x1f}, + {0x18, 0x5f}, + {0x19, 0x00}, + {0x1a, 0x68}, +}; + +static const u8 ov361x_bridge_start_640[][2] = { + {0xf1, 0x60}, /* Hsize[7:0]*/ + {0x88, 0x00}, /* Hsize[15:8] Write Only, can't read */ + {0x89, 0x04}, /* Vsize[7:0] */ + {0x8a, 0x00}, /* Vsize[15:8] Write Only, can't read */ + {0x8b, 0x03}, /* for Iso */ + {0x8c, 0x01}, /* RAW input */ + {0x8d, 0x10}, + {0x1c, 0x00}, /* RAW output, Iso transfer */ + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, /* turn off JPEG, Iso mode */ + {0x1d, 0x2e}, /* for Iso */ + {0x1d, 0x1e}, +}; + +static const u8 ov361x_start_320[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0C}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x40}, + {0x17, 0x1f}, + {0x18, 0x5f}, + {0x19, 0x00}, + {0x1a, 0x68}, +}; + +static const u8 ov361x_bridge_start_320[][2] = { + {0xf1, 0x60}, /* Hsize[7:0] */ + {0x88, 0x00}, /* Hsize[15:8] Write Only, can't read */ + {0x89, 0x04}, /* Vsize[7:0] */ + {0x8a, 0x00}, /* Vsize[15:8] Write Only, can't read */ + {0x8b, 0x03}, /* for Iso */ + {0x8c, 0x01}, /* RAW input */ + {0x8d, 0x10}, + {0x1c, 0x00}, /* RAW output, Iso transfer; */ + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, /* turn off JPEG, Iso mode */ + {0x1d, 0x2e}, /* for Iso */ + {0x1d, 0x1e}, +}; + +static const u8 ov361x_start_160[][2] = { + {0x12, 0x80}, + {0x13, 0xcf}, + {0x14, 0x40}, + {0x15, 0x00}, + {0x01, 0x80}, + {0x02, 0x80}, + {0x04, 0x70}, + {0x0d, 0x40}, + {0x0f, 0x47}, + {0x11, 0x81}, + {0x32, 0x36}, + {0x33, 0x0C}, + {0x34, 0x00}, + {0x35, 0x90}, + {0x12, 0x40}, + {0x17, 0x1f}, + {0x18, 0x5f}, + {0x19, 0x00}, + {0x1a, 0x68}, +}; + +static const u8 ov361x_bridge_start_160[][2] = { + {0xf1, 0x60}, /* Hsize[7:0] */ + {0x88, 0x00}, /* Hsize[15:8] Write Only, can't read */ + {0x89, 0x04}, /* Vsize[7:0] */ + {0x8a, 0x00}, /* Vsize[15:8] Write Only, can't read */ + {0x8b, 0x03}, /* for Iso */ + {0x8c, 0x01}, /* RAW input */ + {0x8d, 0x10}, + {0x1c, 0x00}, /* RAW output, Iso transfer */ + {0x1d, 0x48}, + {0x1d, 0x00}, + {0x1d, 0xff}, + {0x1c, 0x0a}, /* turn off JPEG, Iso mode */ + {0x1d, 0x2e}, /* for Iso */ + {0x1d, 0x1e}, +}; + static const u8 bridge_init[][2] = { {0x88, 0xf8}, {0x89, 0xff}, @@ -898,7 +1167,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev) int i; for (i = 0; i < 5; i++) { - msleep(10); + msleep(20); data = reg_r(gspca_dev, OV534_REG_STATUS); switch (data) { @@ -1221,6 +1490,13 @@ static int sd_init(struct gspca_dev *gspca_dev) sccb_w_array(gspca_dev, ov562x_init_2, ARRAY_SIZE(ov562x_init_2)); reg_w(gspca_dev, 0xe0, 0x00); + } else if ((sensor_id & 0xfff0) == 0x3610) { + sd->sensor = SENSOR_OV361x; + gspca_dev->cam.cam_mode = ov361x_mode; + gspca_dev->cam.nmodes = ARRAY_SIZE(ov361x_mode); + reg_w(gspca_dev, 0xe7, 0x3a); + reg_w(gspca_dev, 0xf1, 0x60); + sccb_write(gspca_dev, 0x12, 0x80); } else { pr_err("Unknown sensor %04x", sensor_id); return -EINVAL; @@ -1229,6 +1505,53 @@ static int sd_init(struct gspca_dev *gspca_dev) return gspca_dev->usb_err; } +static int sd_start_ov361x(struct gspca_dev *gspca_dev) +{ + sccb_write(gspca_dev, 0x12, 0x80); + msleep(20); + switch (gspca_dev->curr_mode % (ov361x_last)) { + case ov361x_2048: + reg_w_array(gspca_dev, ov361x_bridge_start_2048, + ARRAY_SIZE(ov361x_bridge_start_2048)); + sccb_w_array(gspca_dev, ov361x_start_2048, + ARRAY_SIZE(ov361x_start_2048)); + break; + case ov361x_1600: + reg_w_array(gspca_dev, ov361x_bridge_start_1600, + ARRAY_SIZE(ov361x_bridge_start_1600)); + sccb_w_array(gspca_dev, ov361x_start_1600, + ARRAY_SIZE(ov361x_start_1600)); + break; + case ov361x_1024: + reg_w_array(gspca_dev, ov361x_bridge_start_1024, + ARRAY_SIZE(ov361x_bridge_start_1024)); + sccb_w_array(gspca_dev, ov361x_start_1024, + ARRAY_SIZE(ov361x_start_1024)); + break; + case ov361x_640: + reg_w_array(gspca_dev, ov361x_bridge_start_640, + ARRAY_SIZE(ov361x_bridge_start_640)); + sccb_w_array(gspca_dev, ov361x_start_640, + ARRAY_SIZE(ov361x_start_640)); + break; + case ov361x_320: + reg_w_array(gspca_dev, ov361x_bridge_start_320, + ARRAY_SIZE(ov361x_bridge_start_320)); + sccb_w_array(gspca_dev, ov361x_start_320, + ARRAY_SIZE(ov361x_start_320)); + break; + case ov361x_160: + reg_w_array(gspca_dev, ov361x_bridge_start_160, + ARRAY_SIZE(ov361x_bridge_start_160)); + sccb_w_array(gspca_dev, ov361x_start_160, + ARRAY_SIZE(ov361x_start_160)); + break; + } + reg_w(gspca_dev, 0xe0, 0x00); /* start transfer */ + + return gspca_dev->usb_err; +} + static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -1237,6 +1560,8 @@ static int sd_start(struct gspca_dev *gspca_dev) return gspca_dev->usb_err; if (sd->sensor == SENSOR_OV562x) return gspca_dev->usb_err; + if (sd->sensor == SENSOR_OV361x) + return sd_start_ov361x(gspca_dev); switch (gspca_dev->curr_mode) { case QVGA_MODE: /* 320x240 */ @@ -1290,6 +1615,11 @@ static int sd_start(struct gspca_dev *gspca_dev) static void sd_stopN(struct gspca_dev *gspca_dev) { + if (((struct sd *)gspca_dev)->sensor == SENSOR_OV361x) { + reg_w(gspca_dev, 0xe0, 0x01); /* stop transfer */ + /* reg_w(gspca_dev, 0x31, 0x09); */ + return; + } reg_w(gspca_dev, 0xe0, 0x01); set_led(gspca_dev, 0); reg_w(gspca_dev, 0xe0, 0x00); @@ -1425,6 +1755,8 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) if (sd->sensor == SENSOR_OV971x) return 0; + if (sd->sensor == SENSOR_OV361x) + return 0; gspca_dev->vdev.ctrl_handler = hdl; v4l2_ctrl_handler_init(hdl, 7); if (sd->sensor == SENSOR_OV562x) { diff --git a/drivers/media/usb/gspca/pac207.c b/drivers/media/usb/gspca/pac207.c index 83519be94e58..cd79c180f67b 100644 --- a/drivers/media/usb/gspca/pac207.c +++ b/drivers/media/usb/gspca/pac207.c @@ -299,7 +299,7 @@ static int sd_start(struct gspca_dev *gspca_dev) pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[3], 8); /* Compression Balance */ - if (gspca_dev->width == 176) + if (gspca_dev->pixfmt.width == 176) pac207_write_reg(gspca_dev, 0x4a, 0xff); else pac207_write_reg(gspca_dev, 0x4a, 0x30); @@ -317,7 +317,7 @@ static int sd_start(struct gspca_dev *gspca_dev) mode = 0x00; else mode = 0x02; - if (gspca_dev->width == 176) { /* 176x144 */ + if (gspca_dev->pixfmt.width == 176) { /* 176x144 */ mode |= 0x01; PDEBUG(D_STREAM, "pac207_start mode 176x144"); } else { /* 352x288 */ diff --git a/drivers/media/usb/gspca/pac7311.c b/drivers/media/usb/gspca/pac7311.c index 1a5bdc853a80..25f86b1e74a8 100644 --- a/drivers/media/usb/gspca/pac7311.c +++ b/drivers/media/usb/gspca/pac7311.c @@ -326,7 +326,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 val) * 640x480 mode and page 4 reg 2 <= 3 then it must be 9 */ reg_w(gspca_dev, 0xff, 0x01); - if (gspca_dev->width != 640 && val <= 3) + if (gspca_dev->pixfmt.width != 640 && val <= 3) reg_w(gspca_dev, 0x08, 0x09); else reg_w(gspca_dev, 0x08, 0x08); @@ -337,7 +337,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 val) * camera to use higher compression or we may run out of * bandwidth. */ - if (gspca_dev->width == 640 && val == 2) + if (gspca_dev->pixfmt.width == 640 && val == 2) reg_w(gspca_dev, 0x80, 0x01); else reg_w(gspca_dev, 0x80, 0x1c); @@ -615,7 +615,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, /* Start the new frame with the jpeg header */ pac_start_frame(gspca_dev, - gspca_dev->height, gspca_dev->width); + gspca_dev->pixfmt.height, gspca_dev->pixfmt.width); } gspca_frame_add(gspca_dev, INTER_PACKET, data, len); } diff --git a/drivers/media/usb/gspca/se401.c b/drivers/media/usb/gspca/se401.c index 5f729b8aa2bd..5102cea50471 100644 --- a/drivers/media/usb/gspca/se401.c +++ b/drivers/media/usb/gspca/se401.c @@ -354,9 +354,9 @@ static int sd_start(struct gspca_dev *gspca_dev) /* set size + mode */ se401_write_req(gspca_dev, SE401_REQ_SET_WIDTH, - gspca_dev->width * mult, 0); + gspca_dev->pixfmt.width * mult, 0); se401_write_req(gspca_dev, SE401_REQ_SET_HEIGHT, - gspca_dev->height * mult, 0); + gspca_dev->pixfmt.height * mult, 0); /* * HDG: disabled this as it does not seem to do anything * se401_write_req(gspca_dev, SE401_REQ_SET_OUTPUT_MODE, @@ -480,7 +480,7 @@ static void sd_complete_frame(struct gspca_dev *gspca_dev, u8 *data, int len) static void sd_pkt_scan_janggu(struct gspca_dev *gspca_dev, u8 *data, int len) { struct sd *sd = (struct sd *)gspca_dev; - int imagesize = gspca_dev->width * gspca_dev->height; + int imagesize = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height; int i, plen, bits, pixels, info, count; if (sd->restart_stream) diff --git a/drivers/media/usb/gspca/sn9c20x.c b/drivers/media/usb/gspca/sn9c20x.c index f4453d52801b..2a38621cf718 100644 --- a/drivers/media/usb/gspca/sn9c20x.c +++ b/drivers/media/usb/gspca/sn9c20x.c @@ -1955,7 +1955,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev) return 0; } - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: /* 160x120 */ gspca_dev->alt = 2; break; @@ -1985,8 +1985,8 @@ static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; int mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv; - int width = gspca_dev->width; - int height = gspca_dev->height; + int width = gspca_dev->pixfmt.width; + int height = gspca_dev->pixfmt.height; u8 fmt, scale = 0; jpeg_define(sd->jpeg_hdr, height, width, diff --git a/drivers/media/usb/gspca/sonixb.c b/drivers/media/usb/gspca/sonixb.c index d7ff3b9687c5..7277dbd2afcd 100644 --- a/drivers/media/usb/gspca/sonixb.c +++ b/drivers/media/usb/gspca/sonixb.c @@ -513,10 +513,7 @@ static void i2c_w(struct gspca_dev *gspca_dev, const u8 *buf) if (gspca_dev->usb_buf[0] & 0x04) { if (gspca_dev->usb_buf[0] & 0x08) { dev_err(gspca_dev->v4l2_dev.dev, - "i2c error writing %02x %02x %02x %02x" - " %02x %02x %02x %02x\n", - buf[0], buf[1], buf[2], buf[3], - buf[4], buf[5], buf[6], buf[7]); + "i2c error writing %8ph\n", buf); gspca_dev->usb_err = -EIO; } return; @@ -753,7 +750,7 @@ static void setexposure(struct gspca_dev *gspca_dev) /* In 640x480, if the reg11 has less than 4, the image is unstable (the bridge goes into a higher compression mode which we have not reverse engineered yet). */ - if (gspca_dev->width == 640 && reg11 < 4) + if (gspca_dev->pixfmt.width == 640 && reg11 < 4) reg11 = 4; /* frame exposure time in ms = 1000 * reg11 / 30 -> diff --git a/drivers/media/usb/gspca/sonixj.c b/drivers/media/usb/gspca/sonixj.c index 3b5ccb1c4cdf..c69b45d7cfbf 100644 --- a/drivers/media/usb/gspca/sonixj.c +++ b/drivers/media/usb/gspca/sonixj.c @@ -2204,7 +2204,8 @@ static int sd_start(struct gspca_dev *gspca_dev) { 0x14, 0xe7, 0x1e, 0xdd }; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x21); /* JPEG 422 */ /* initialize the bridge */ diff --git a/drivers/media/usb/gspca/spca1528.c b/drivers/media/usb/gspca/spca1528.c index 688592b289ea..f38fd8949609 100644 --- a/drivers/media/usb/gspca/spca1528.c +++ b/drivers/media/usb/gspca/spca1528.c @@ -255,7 +255,8 @@ static int sd_start(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; /* initialize the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x22); /* JPEG 411 */ /* the JPEG quality shall be 85% */ diff --git a/drivers/media/usb/gspca/spca500.c b/drivers/media/usb/gspca/spca500.c index 9f8bf51fd64b..f011a309dd65 100644 --- a/drivers/media/usb/gspca/spca500.c +++ b/drivers/media/usb/gspca/spca500.c @@ -608,7 +608,8 @@ static int sd_start(struct gspca_dev *gspca_dev) __u8 xmult, ymult; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x22); /* JPEG 411 */ jpeg_set_qual(sd->jpeg_hdr, QUALITY); diff --git a/drivers/media/usb/gspca/sq905c.c b/drivers/media/usb/gspca/sq905c.c index acb19fb9a3df..aa21edc9502d 100644 --- a/drivers/media/usb/gspca/sq905c.c +++ b/drivers/media/usb/gspca/sq905c.c @@ -272,7 +272,7 @@ static int sd_start(struct gspca_dev *gspca_dev) dev->cap_mode = gspca_dev->cam.cam_mode; /* "Open the shutter" and set size, to start capture */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 640: PDEBUG(D_STREAM, "Start streaming at high resolution"); dev->cap_mode++; diff --git a/drivers/media/usb/gspca/sq930x.c b/drivers/media/usb/gspca/sq930x.c index b10d0821111c..e274cf19a3ea 100644 --- a/drivers/media/usb/gspca/sq930x.c +++ b/drivers/media/usb/gspca/sq930x.c @@ -906,7 +906,8 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev) gspca_dev->cam.bulk_nurbs = 1; /* there must be one URB only */ sd->do_ctrl = 0; - gspca_dev->cam.bulk_size = gspca_dev->width * gspca_dev->height + 8; + gspca_dev->cam.bulk_size = gspca_dev->pixfmt.width * + gspca_dev->pixfmt.height + 8; return 0; } diff --git a/drivers/media/usb/gspca/stk014.c b/drivers/media/usb/gspca/stk014.c index 8c0982607f25..b0c70fea760b 100644 --- a/drivers/media/usb/gspca/stk014.c +++ b/drivers/media/usb/gspca/stk014.c @@ -250,7 +250,8 @@ static int sd_start(struct gspca_dev *gspca_dev) int ret, value; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x22); /* JPEG 411 */ jpeg_set_qual(sd->jpeg_hdr, QUALITY); @@ -261,7 +262,7 @@ static int sd_start(struct gspca_dev *gspca_dev) set_par(gspca_dev, 0x00000000); set_par(gspca_dev, 0x8002e001); set_par(gspca_dev, 0x14000000); - if (gspca_dev->width > 320) + if (gspca_dev->pixfmt.width > 320) value = 0x8002e001; /* 640x480 */ else value = 0x4001f000; /* 320x240 */ diff --git a/drivers/media/usb/gspca/stk1135.c b/drivers/media/usb/gspca/stk1135.c index 585868835ace..1fc80af2a189 100644 --- a/drivers/media/usb/gspca/stk1135.c +++ b/drivers/media/usb/gspca/stk1135.c @@ -48,42 +48,11 @@ struct sd { }; static const struct v4l2_pix_format stk1135_modes[] = { - {160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 160, - .sizeimage = 160 * 120, - .colorspace = V4L2_COLORSPACE_SRGB}, - {176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 176, - .sizeimage = 176 * 144, - .colorspace = V4L2_COLORSPACE_SRGB}, - {320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 320, - .sizeimage = 320 * 240, - .colorspace = V4L2_COLORSPACE_SRGB}, - {352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 352, - .sizeimage = 352 * 288, - .colorspace = V4L2_COLORSPACE_SRGB}, + /* default mode (this driver supports variable resolution) */ {640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, .bytesperline = 640, .sizeimage = 640 * 480, .colorspace = V4L2_COLORSPACE_SRGB}, - {720, 576, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 720, - .sizeimage = 720 * 576, - .colorspace = V4L2_COLORSPACE_SRGB}, - {800, 600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 800, - .sizeimage = 800 * 600, - .colorspace = V4L2_COLORSPACE_SRGB}, - {1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 1024, - .sizeimage = 1024 * 768, - .colorspace = V4L2_COLORSPACE_SRGB}, - {1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE, - .bytesperline = 1280, - .sizeimage = 1280 * 1024, - .colorspace = V4L2_COLORSPACE_SRGB}, }; /* -- read a register -- */ @@ -347,16 +316,16 @@ static void stk1135_configure_mt9m112(struct gspca_dev *gspca_dev) sensor_write(gspca_dev, cfg[i].reg, cfg[i].val); /* set output size */ - width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width; - height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height; - if (width <= 640) { /* use context A (half readout speed by default) */ + width = gspca_dev->pixfmt.width; + height = gspca_dev->pixfmt.height; + if (width <= 640 && height <= 512) { /* context A (half readout speed)*/ sensor_write(gspca_dev, 0x1a7, width); sensor_write(gspca_dev, 0x1aa, height); /* set read mode context A */ sensor_write(gspca_dev, 0x0c8, 0x0000); /* set resize, read mode, vblank, hblank context A */ sensor_write(gspca_dev, 0x2c8, 0x0000); - } else { /* use context B (full readout speed by default) */ + } else { /* context B (full readout speed) */ sensor_write(gspca_dev, 0x1a1, width); sensor_write(gspca_dev, 0x1a4, height); /* set read mode context B */ @@ -484,8 +453,8 @@ static int sd_start(struct gspca_dev *gspca_dev) reg_w(gspca_dev, STK1135_REG_CISPO + 3, 0x00); /* set capture end position */ - width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width; - height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height; + width = gspca_dev->pixfmt.width; + height = gspca_dev->pixfmt.height; reg_w(gspca_dev, STK1135_REG_CIEPO + 0, width & 0xff); reg_w(gspca_dev, STK1135_REG_CIEPO + 1, width >> 8); reg_w(gspca_dev, STK1135_REG_CIEPO + 2, height & 0xff); @@ -643,6 +612,35 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) return 0; } +static void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt) +{ + fmt->fmt.pix.width = clamp(fmt->fmt.pix.width, 32U, 1280U); + fmt->fmt.pix.height = clamp(fmt->fmt.pix.height, 32U, 1024U); + /* round up to even numbers */ + fmt->fmt.pix.width += (fmt->fmt.pix.width & 1); + fmt->fmt.pix.height += (fmt->fmt.pix.height & 1); + + fmt->fmt.pix.bytesperline = fmt->fmt.pix.width; + fmt->fmt.pix.sizeimage = fmt->fmt.pix.width * fmt->fmt.pix.height; +} + +static int stk1135_enum_framesizes(struct gspca_dev *gspca_dev, + struct v4l2_frmsizeenum *fsize) +{ + if (fsize->index != 0 || fsize->pixel_format != V4L2_PIX_FMT_SBGGR8) + return -EINVAL; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = 32; + fsize->stepwise.min_height = 32; + fsize->stepwise.max_width = 1280; + fsize->stepwise.max_height = 1024; + fsize->stepwise.step_width = 2; + fsize->stepwise.step_height = 2; + + return 0; +} + /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, @@ -653,6 +651,8 @@ static const struct sd_desc sd_desc = { .stopN = sd_stopN, .pkt_scan = sd_pkt_scan, .dq_callback = stk1135_dq_callback, + .try_fmt = stk1135_try_fmt, + .enum_framesizes = stk1135_enum_framesizes, }; /* -- module initialisation -- */ diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx.c b/drivers/media/usb/gspca/stv06xx/stv06xx.c index 55ee7a61c67f..49d209bbf9ee 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx.c +++ b/drivers/media/usb/gspca/stv06xx/stv06xx.c @@ -452,7 +452,7 @@ frame_data: NULL, 0); if (sd->bridge == BRIDGE_ST6422) - sd->to_skip = gspca_dev->width * 4; + sd->to_skip = gspca_dev->pixfmt.width * 4; if (chunk_len) PERR("Chunk length is " diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c index 8206b7743300..8d785edcccf2 100644 --- a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c +++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c @@ -421,7 +421,7 @@ static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val) /* Number of pixels counted by the sensor when subsampling the pixels. * Slightly larger than the real value to avoid oscillation */ - totalpixels = gspca_dev->width * gspca_dev->height; + totalpixels = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height; totalpixels = totalpixels/(8*8) + totalpixels/(64*64); brightpixels = (totalpixels * val) >> 8; diff --git a/drivers/media/usb/gspca/sunplus.c b/drivers/media/usb/gspca/sunplus.c index af8767a9bd4c..a517d185febe 100644 --- a/drivers/media/usb/gspca/sunplus.c +++ b/drivers/media/usb/gspca/sunplus.c @@ -715,7 +715,8 @@ static int sd_start(struct gspca_dev *gspca_dev) int enable; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x22); /* JPEG 411 */ jpeg_set_qual(sd->jpeg_hdr, QUALITY); diff --git a/drivers/media/usb/gspca/topro.c b/drivers/media/usb/gspca/topro.c index 4cb511ccc5f6..640c2fe760b3 100644 --- a/drivers/media/usb/gspca/topro.c +++ b/drivers/media/usb/gspca/topro.c @@ -3856,7 +3856,7 @@ static void setsharpness(struct gspca_dev *gspca_dev, s32 val) if (sd->bridge == BRIDGE_TP6800) { val |= 0x08; /* grid compensation enable */ - if (gspca_dev->width == 640) + if (gspca_dev->pixfmt.width == 640) reg_w(gspca_dev, TP6800_R78_FORMAT, 0x00); /* vga */ else val |= 0x04; /* scaling down enable */ @@ -3880,7 +3880,7 @@ static void set_resolution(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; reg_w(gspca_dev, TP6800_R21_ENDP_1_CTL, 0x00); - if (gspca_dev->width == 320) { + if (gspca_dev->pixfmt.width == 320) { reg_w(gspca_dev, TP6800_R3F_FRAME_RATE, 0x06); msleep(100); i2c_w(gspca_dev, CX0342_AUTO_ADC_CALIB, 0x01); @@ -3924,7 +3924,7 @@ static int get_fr_idx(struct gspca_dev *gspca_dev) /* 640x480 * 30 fps does not work */ if (i == 6 /* if 30 fps */ - && gspca_dev->width == 640) + && gspca_dev->pixfmt.width == 640) i = 0x05; /* 15 fps */ } else { for (i = 0; i < ARRAY_SIZE(rates_6810) - 1; i++) { @@ -3935,7 +3935,7 @@ static int get_fr_idx(struct gspca_dev *gspca_dev) /* 640x480 * 30 fps does not work */ if (i == 7 /* if 30 fps */ - && gspca_dev->width == 640) + && gspca_dev->pixfmt.width == 640) i = 6; /* 15 fps */ i |= 0x80; /* clock * 1 */ } @@ -4554,7 +4554,8 @@ static int sd_start(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width); + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width); set_dqt(gspca_dev, sd->quality); if (sd->bridge == BRIDGE_TP6800) { if (sd->sensor == SENSOR_CX0342) @@ -4737,7 +4738,7 @@ static void sd_dq_callback(struct gspca_dev *gspca_dev) (gspca_dev->usb_buf[26] << 8) + gspca_dev->usb_buf[25] + (gspca_dev->usb_buf[29] << 8) + gspca_dev->usb_buf[28]) / 8; - if (gspca_dev->width == 640) + if (gspca_dev->pixfmt.width == 640) luma /= 4; reg_w(gspca_dev, 0x7d, 0x00); diff --git a/drivers/media/usb/gspca/tv8532.c b/drivers/media/usb/gspca/tv8532.c index 8591324a53e1..d497ba38af0d 100644 --- a/drivers/media/usb/gspca/tv8532.c +++ b/drivers/media/usb/gspca/tv8532.c @@ -268,7 +268,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, packet_type0 = packet_type1 = INTER_PACKET; if (gspca_dev->empty_packet) { gspca_dev->empty_packet = 0; - sd->packet = gspca_dev->height / 2; + sd->packet = gspca_dev->pixfmt.height / 2; packet_type0 = FIRST_PACKET; } else if (sd->packet == 0) return; /* 2 more lines in 352x288 ! */ @@ -284,9 +284,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, * - 4 bytes */ gspca_frame_add(gspca_dev, packet_type0, - data + 2, gspca_dev->width); + data + 2, gspca_dev->pixfmt.width); gspca_frame_add(gspca_dev, packet_type1, - data + gspca_dev->width + 5, gspca_dev->width); + data + gspca_dev->pixfmt.width + 5, + gspca_dev->pixfmt.width); } static int sd_s_ctrl(struct v4l2_ctrl *ctrl) diff --git a/drivers/media/usb/gspca/vicam.c b/drivers/media/usb/gspca/vicam.c index a2275cfe0b81..103f6c4236b0 100644 --- a/drivers/media/usb/gspca/vicam.c +++ b/drivers/media/usb/gspca/vicam.c @@ -121,13 +121,13 @@ static int vicam_read_frame(struct gspca_dev *gspca_dev, u8 *data, int size) memset(req_data, 0, 16); req_data[0] = gain; - if (gspca_dev->width == 256) + if (gspca_dev->pixfmt.width == 256) req_data[1] |= 0x01; /* low nibble x-scale */ - if (gspca_dev->height <= 122) { + if (gspca_dev->pixfmt.height <= 122) { req_data[1] |= 0x10; /* high nibble y-scale */ - unscaled_height = gspca_dev->height * 2; + unscaled_height = gspca_dev->pixfmt.height * 2; } else - unscaled_height = gspca_dev->height; + unscaled_height = gspca_dev->pixfmt.height; req_data[2] = 0x90; /* unknown, does not seem to do anything */ if (unscaled_height <= 200) req_data[3] = 0x06; /* vend? */ diff --git a/drivers/media/usb/gspca/w996Xcf.c b/drivers/media/usb/gspca/w996Xcf.c index 2165da0c7ce1..fb9fe2ef3a6f 100644 --- a/drivers/media/usb/gspca/w996Xcf.c +++ b/drivers/media/usb/gspca/w996Xcf.c @@ -430,11 +430,11 @@ static void w9968cf_set_crop_window(struct sd *sd) #define SC(x) ((x) << 10) /* Scaling factors */ - fw = SC(sd->gspca_dev.width) / max_width; - fh = SC(sd->gspca_dev.height) / max_height; + fw = SC(sd->gspca_dev.pixfmt.width) / max_width; + fh = SC(sd->gspca_dev.pixfmt.height) / max_height; - cw = (fw >= fh) ? max_width : SC(sd->gspca_dev.width) / fh; - ch = (fw >= fh) ? SC(sd->gspca_dev.height) / fw : max_height; + cw = (fw >= fh) ? max_width : SC(sd->gspca_dev.pixfmt.width) / fh; + ch = (fw >= fh) ? SC(sd->gspca_dev.pixfmt.height) / fw : max_height; sd->sensor_width = max_width; sd->sensor_height = max_height; @@ -454,34 +454,34 @@ static void w9968cf_mode_init_regs(struct sd *sd) w9968cf_set_crop_window(sd); - reg_w(sd, 0x14, sd->gspca_dev.width); - reg_w(sd, 0x15, sd->gspca_dev.height); + reg_w(sd, 0x14, sd->gspca_dev.pixfmt.width); + reg_w(sd, 0x15, sd->gspca_dev.pixfmt.height); /* JPEG width & height */ - reg_w(sd, 0x30, sd->gspca_dev.width); - reg_w(sd, 0x31, sd->gspca_dev.height); + reg_w(sd, 0x30, sd->gspca_dev.pixfmt.width); + reg_w(sd, 0x31, sd->gspca_dev.pixfmt.height); /* Y & UV frame buffer strides (in WORD) */ if (w9968cf_vga_mode[sd->gspca_dev.curr_mode].pixelformat == V4L2_PIX_FMT_JPEG) { - reg_w(sd, 0x2c, sd->gspca_dev.width / 2); - reg_w(sd, 0x2d, sd->gspca_dev.width / 4); + reg_w(sd, 0x2c, sd->gspca_dev.pixfmt.width / 2); + reg_w(sd, 0x2d, sd->gspca_dev.pixfmt.width / 4); } else - reg_w(sd, 0x2c, sd->gspca_dev.width); + reg_w(sd, 0x2c, sd->gspca_dev.pixfmt.width); reg_w(sd, 0x00, 0xbf17); /* reset everything */ reg_w(sd, 0x00, 0xbf10); /* normal operation */ /* Transfer size in WORDS (for UYVY format only) */ - val = sd->gspca_dev.width * sd->gspca_dev.height; + val = sd->gspca_dev.pixfmt.width * sd->gspca_dev.pixfmt.height; reg_w(sd, 0x3d, val & 0xffff); /* low bits */ reg_w(sd, 0x3e, val >> 16); /* high bits */ if (w9968cf_vga_mode[sd->gspca_dev.curr_mode].pixelformat == V4L2_PIX_FMT_JPEG) { /* We may get called multiple times (usb isoc bw negotiat.) */ - jpeg_define(sd->jpeg_hdr, sd->gspca_dev.height, - sd->gspca_dev.width, 0x22); /* JPEG 420 */ + jpeg_define(sd->jpeg_hdr, sd->gspca_dev.pixfmt.height, + sd->gspca_dev.pixfmt.width, 0x22); /* JPEG 420 */ jpeg_set_qual(sd->jpeg_hdr, v4l2_ctrl_g_ctrl(sd->jpegqual)); w9968cf_upload_quantizationtables(sd); v4l2_ctrl_grab(sd->jpegqual, true); diff --git a/drivers/media/usb/gspca/xirlink_cit.c b/drivers/media/usb/gspca/xirlink_cit.c index 7eaf64eb867c..a41aa7817c54 100644 --- a/drivers/media/usb/gspca/xirlink_cit.c +++ b/drivers/media/usb/gspca/xirlink_cit.c @@ -1471,14 +1471,14 @@ static int cit_get_clock_div(struct gspca_dev *gspca_dev) while (clock_div > 3 && 1000 * packet_size > - gspca_dev->width * gspca_dev->height * + gspca_dev->pixfmt.width * gspca_dev->pixfmt.height * fps[clock_div - 1] * 3 / 2) clock_div--; PDEBUG(D_PROBE, "PacketSize: %d, res: %dx%d -> using clockdiv: %d (%d fps)", - packet_size, gspca_dev->width, gspca_dev->height, clock_div, - fps[clock_div]); + packet_size, gspca_dev->pixfmt.width, gspca_dev->pixfmt.height, + clock_div, fps[clock_div]); return clock_div; } @@ -1502,7 +1502,7 @@ static int cit_start_model0(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0x0002, 0x0426); cit_write_reg(gspca_dev, 0x0014, 0x0427); - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: /* 160x120 */ cit_write_reg(gspca_dev, 0x0004, 0x010b); cit_write_reg(gspca_dev, 0x0001, 0x010a); @@ -1643,7 +1643,7 @@ static int cit_start_model1(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0x00, 0x0101); cit_write_reg(gspca_dev, 0x00, 0x010a); - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 128: /* 128x96 */ cit_write_reg(gspca_dev, 0x80, 0x0103); cit_write_reg(gspca_dev, 0x60, 0x0105); @@ -1700,7 +1700,7 @@ static int cit_start_model1(struct gspca_dev *gspca_dev) } /* Assorted init */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 128: /* 128x96 */ cit_Packet_Format1(gspca_dev, 0x2b, 0x1e); cit_write_reg(gspca_dev, 0xc9, 0x0119); /* Same everywhere */ @@ -1753,7 +1753,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0x0000, 0x0108); cit_write_reg(gspca_dev, 0x0001, 0x0133); cit_write_reg(gspca_dev, 0x0001, 0x0102); - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 176: /* 176x144 */ cit_write_reg(gspca_dev, 0x002c, 0x0103); /* All except 320x240 */ cit_write_reg(gspca_dev, 0x0000, 0x0104); /* Same */ @@ -1792,7 +1792,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0x0000, 0x0100); /* LED on */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 176: /* 176x144 */ cit_write_reg(gspca_dev, 0x0050, 0x0111); cit_write_reg(gspca_dev, 0x00d0, 0x0111); @@ -1840,7 +1840,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev) * Magic control of CMOS sensor. Only lower values like * 0-3 work, and picture shifts left or right. Don't change. */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 176: /* 176x144 */ cit_model2_Packet1(gspca_dev, 0x0014, 0x0002); cit_model2_Packet1(gspca_dev, 0x0016, 0x0002); /* Horizontal shift */ @@ -1899,7 +1899,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev) * does not allow arbitrary values and apparently is a bit mask, to * be activated only at appropriate time. Don't change it randomly! */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 176: /* 176x144 */ cit_model2_Packet1(gspca_dev, 0x0026, 0x00c2); break; @@ -2023,7 +2023,7 @@ static int cit_start_model3(struct gspca_dev *gspca_dev) cit_model3_Packet1(gspca_dev, 0x009e, 0x0096); cit_model3_Packet1(gspca_dev, 0x009f, 0x000a); - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: cit_write_reg(gspca_dev, 0x0000, 0x0101); /* Same on 160x120, 320x240 */ cit_write_reg(gspca_dev, 0x00a0, 0x0103); /* Same on 160x120, 320x240 */ @@ -2134,7 +2134,7 @@ static int cit_start_model3(struct gspca_dev *gspca_dev) like with the IBM netcam pro). */ cit_write_reg(gspca_dev, clock_div, 0x0111); /* Clock Divider */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: cit_model3_Packet1(gspca_dev, 0x001f, 0x0000); /* Same */ cit_model3_Packet1(gspca_dev, 0x0039, 0x001f); /* Same */ @@ -2211,7 +2211,7 @@ static int cit_start_model4(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0xfffa, 0x0124); cit_model4_Packet1(gspca_dev, 0x0034, 0x0000); - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 128: /* 128x96 */ cit_write_reg(gspca_dev, 0x0070, 0x0119); cit_write_reg(gspca_dev, 0x00d0, 0x0111); @@ -2531,7 +2531,7 @@ static int cit_start_ibm_netcam_pro(struct gspca_dev *gspca_dev) cit_write_reg(gspca_dev, 0x00fc, 0x012b); /* Same */ cit_write_reg(gspca_dev, 0x0022, 0x012a); /* Same */ - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: /* 160x120 */ cit_write_reg(gspca_dev, 0x0024, 0x010b); cit_write_reg(gspca_dev, 0x0089, 0x0119); @@ -2635,7 +2635,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev) struct usb_host_interface *alt; int max_packet_size; - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: max_packet_size = 450; break; @@ -2659,7 +2659,7 @@ static int sd_isoc_nego(struct gspca_dev *gspca_dev) int ret, packet_size, min_packet_size; struct usb_host_interface *alt; - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: min_packet_size = 200; break; @@ -2780,7 +2780,7 @@ static u8 *cit_find_sof(struct gspca_dev *gspca_dev, u8 *data, int len) case CIT_MODEL1: case CIT_MODEL3: case CIT_IBM_NETCAM_PRO: - switch (gspca_dev->width) { + switch (gspca_dev->pixfmt.width) { case 160: /* 160x120 */ byte3 = 0x02; byte4 = 0x0a; @@ -2864,20 +2864,16 @@ static u8 *cit_find_sof(struct gspca_dev *gspca_dev, u8 *data, int len) if (data[i] == 0xff) { if (i >= 4) PDEBUG(D_FRAM, - "header found at offset: %d: %02x %02x 00 %02x %02x %02x\n", + "header found at offset: %d: %02x %02x 00 %3ph\n", i - 1, data[i - 4], data[i - 3], - data[i], - data[i + 1], - data[i + 2]); + &data[i]); else PDEBUG(D_FRAM, - "header found at offset: %d: 00 %02x %02x %02x\n", + "header found at offset: %d: 00 %3ph\n", i - 1, - data[i], - data[i + 1], - data[i + 2]); + &data[i]); return data + i + (sd->sof_len - 1); } break; diff --git a/drivers/media/usb/gspca/zc3xx.c b/drivers/media/usb/gspca/zc3xx.c index cbfc2f921427..7b95d8e88a20 100644 --- a/drivers/media/usb/gspca/zc3xx.c +++ b/drivers/media/usb/gspca/zc3xx.c @@ -6700,7 +6700,8 @@ static int sd_start(struct gspca_dev *gspca_dev) }; /* create the JPEG header */ - jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height, + gspca_dev->pixfmt.width, 0x21); /* JPEG 422 */ mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv; diff --git a/drivers/media/usb/hdpvr/hdpvr-core.c b/drivers/media/usb/hdpvr/hdpvr-core.c index 6e5070774dc2..2f0c89cbac76 100644 --- a/drivers/media/usb/hdpvr/hdpvr-core.c +++ b/drivers/media/usb/hdpvr/hdpvr-core.c @@ -78,7 +78,8 @@ void hdpvr_delete(struct hdpvr_device *dev) static void challenge(u8 *bytes) { - u64 *i64P, tmp64; + __le64 *i64P; + u64 tmp64; uint i, idx; for (idx = 0; idx < 32; ++idx) { @@ -106,10 +107,10 @@ static void challenge(u8 *bytes) for (i = 0; i < 3; i++) bytes[1] *= bytes[6] + 1; for (i = 0; i < 3; i++) { - i64P = (u64 *)bytes; + i64P = (__le64 *)bytes; tmp64 = le64_to_cpup(i64P); - tmp64 <<= bytes[7] & 0x0f; - *i64P += cpu_to_le64(tmp64); + tmp64 = tmp64 + (tmp64 << (bytes[7] & 0x0f)); + *i64P = cpu_to_le64(tmp64); } break; } @@ -301,8 +302,6 @@ static int hdpvr_probe(struct usb_interface *interface, goto error; } - dev->workqueue = 0; - /* init video transfer queues first of all */ /* to prevent oops in hdpvr_delete() on error paths */ INIT_LIST_HEAD(&dev->free_buff_list); diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c index c4d51d78f837..ea05f678b559 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c @@ -2868,7 +2868,7 @@ static void pvr2_subdev_set_control(struct pvr2_hdw *hdw, int id, pvr2_subdev_set_control(hdw, id, #lab, (hdw)->lab##_val); \ } -v4l2_std_id pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw) +static v4l2_std_id pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw) { v4l2_std_id std; std = (v4l2_std_id)hdw->std_mask_avail; diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c index 03761c6f472f..05bd91a60c09 100644 --- a/drivers/media/usb/siano/smsusb.c +++ b/drivers/media/usb/siano/smsusb.c @@ -209,8 +209,10 @@ static int smsusb_sendrequest(void *context, void *buffer, size_t size) struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) buffer; int dummy; - if (dev->state != SMSUSB_ACTIVE) + if (dev->state != SMSUSB_ACTIVE) { + sms_debug("Device not active yet"); return -ENOENT; + } sms_debug("sending %s(%d) size: %d", smscore_translate_msg(phdr->msg_type), phdr->msg_type, @@ -243,6 +245,9 @@ static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id) int rc, dummy; char *fw_filename; + if (id < 0) + id = sms_get_board(board_id)->default_mode; + if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) { sms_err("invalid firmware id specified %d", id); return -EINVAL; @@ -445,14 +450,15 @@ static int smsusb_probe(struct usb_interface *intf, char devpath[32]; int i, rc; - sms_info("interface number %d", + sms_info("board id=%lu, interface number %d", + id->driver_info, intf->cur_altsetting->desc.bInterfaceNumber); if (sms_get_board(id->driver_info)->intf_num != intf->cur_altsetting->desc.bInterfaceNumber) { - sms_err("interface number is %d expecting %d", - sms_get_board(id->driver_info)->intf_num, - intf->cur_altsetting->desc.bInterfaceNumber); + sms_debug("interface %d won't be used. Expecting interface %d to popup", + intf->cur_altsetting->desc.bInterfaceNumber, + sms_get_board(id->driver_info)->intf_num); return -ENODEV; } @@ -483,22 +489,32 @@ static int smsusb_probe(struct usb_interface *intf, } if ((udev->actconfig->desc.bNumInterfaces == 2) && (intf->cur_altsetting->desc.bInterfaceNumber == 0)) { - sms_err("rom interface 0 is not used"); + sms_debug("rom interface 0 is not used"); return -ENODEV; } if (id->driver_info == SMS1XXX_BOARD_SIANO_STELLAR_ROM) { - sms_info("stellar device was found."); + /* Detected a Siano Stellar uninitialized */ + snprintf(devpath, sizeof(devpath), "usb\\%d-%s", udev->bus->busnum, udev->devpath); - sms_info("stellar device was found."); - return smsusb1_load_firmware( + sms_info("stellar device in cold state was found at %s.", devpath); + rc = smsusb1_load_firmware( udev, smscore_registry_getmode(devpath), id->driver_info); + + /* This device will reset and gain another USB ID */ + if (!rc) + sms_info("stellar device now in warm state"); + else + sms_err("Failed to put stellar in warm state. Error: %d", rc); + + return rc; + } else { + rc = smsusb_init_device(intf, id->driver_info); } - rc = smsusb_init_device(intf, id->driver_info); - sms_info("rc %d", rc); + sms_info("Device initialized with return code %d", rc); sms_board_load_modules(id->driver_info); return rc; } @@ -550,10 +566,13 @@ static int smsusb_resume(struct usb_interface *intf) } static const struct usb_device_id smsusb_id_table[] = { + /* This device is only present before firmware load */ { USB_DEVICE(0x187f, 0x0010), - .driver_info = SMS1XXX_BOARD_SIANO_STELLAR }, + .driver_info = SMS1XXX_BOARD_SIANO_STELLAR_ROM }, + /* This device pops up after firmware load */ { USB_DEVICE(0x187f, 0x0100), .driver_info = SMS1XXX_BOARD_SIANO_STELLAR }, + { USB_DEVICE(0x187f, 0x0200), .driver_info = SMS1XXX_BOARD_SIANO_NOVA_A }, { USB_DEVICE(0x187f, 0x0201), diff --git a/drivers/media/usb/tlg2300/pd-main.c b/drivers/media/usb/tlg2300/pd-main.c index 95f94e5aa66d..3316caa4733b 100644 --- a/drivers/media/usb/tlg2300/pd-main.c +++ b/drivers/media/usb/tlg2300/pd-main.c @@ -232,7 +232,7 @@ static int firmware_download(struct usb_device *udev) goto out; } - max_packet_size = udev->ep_out[0x1]->desc.wMaxPacketSize; + max_packet_size = le16_to_cpu(udev->ep_out[0x1]->desc.wMaxPacketSize); log("\t\t download size : %d", (int)max_packet_size); for (offset = 0; offset < fwlength; offset += max_packet_size) { diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c index e52c3b97f304..29724af9b9ab 100644 --- a/drivers/media/usb/ttusb-dec/ttusb_dec.c +++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c @@ -366,7 +366,7 @@ static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode, } return 0; } else { - return -1; + return -ENOENT; } } @@ -1241,6 +1241,8 @@ static void ttusb_dec_init_v_pes(struct ttusb_dec *dec) static int ttusb_dec_init_usb(struct ttusb_dec *dec) { + int result; + dprintk("%s\n", __func__); mutex_init(&dec->usb_mutex); @@ -1258,7 +1260,7 @@ static int ttusb_dec_init_usb(struct ttusb_dec *dec) return -ENOMEM; } dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE, - GFP_ATOMIC, &dec->irq_dma_handle); + GFP_KERNEL, &dec->irq_dma_handle); if(!dec->irq_buffer) { usb_free_urb(dec->irq_urb); return -ENOMEM; @@ -1270,7 +1272,13 @@ static int ttusb_dec_init_usb(struct ttusb_dec *dec) dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; } - return ttusb_dec_alloc_iso_urbs(dec); + result = ttusb_dec_alloc_iso_urbs(dec); + if (result) { + usb_free_urb(dec->irq_urb); + usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, + dec->irq_buffer, dec->irq_dma_handle); + } + return result; } static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) @@ -1293,10 +1301,11 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) dprintk("%s\n", __func__); - if (request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev)) { + result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev); + if (result) { printk(KERN_ERR "%s: Firmware (%s) unavailable.\n", __func__, dec->firmware_name); - return 1; + return result; } firmware = fw_entry->data; @@ -1306,7 +1315,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) printk("%s: firmware size too small for DSP code (%zu < 60).\n", __func__, firmware_size); release_firmware(fw_entry); - return -1; + return -ENOENT; } /* a 32 bit checksum over the first 56 bytes of the DSP Code is stored @@ -1320,7 +1329,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec) "0x%08x != 0x%08x in file), file invalid.\n", __func__, crc32_csum, crc32_check); release_firmware(fw_entry); - return -1; + return -ENOENT; } memcpy(idstring, &firmware[36], 20); idstring[20] = '\0'; @@ -1389,55 +1398,48 @@ static int ttusb_dec_init_stb(struct ttusb_dec *dec) dprintk("%s\n", __func__); result = ttusb_dec_get_stb_state(dec, &mode, &model, &version); + if (result) + return result; - if (!result) { - if (!mode) { - if (version == 0xABCDEFAB) - printk(KERN_INFO "ttusb_dec: no version " - "info in Firmware\n"); - else - printk(KERN_INFO "ttusb_dec: Firmware " - "%x.%02x%c%c\n", - version >> 24, (version >> 16) & 0xff, - (version >> 8) & 0xff, version & 0xff); - - result = ttusb_dec_boot_dsp(dec); - if (result) - return result; - else - return 1; - } else { - /* We can't trust the USB IDs that some firmwares - give the box */ - switch (model) { - case 0x00070001: - case 0x00070008: - case 0x0007000c: - ttusb_dec_set_model(dec, TTUSB_DEC3000S); - break; - case 0x00070009: - case 0x00070013: - ttusb_dec_set_model(dec, TTUSB_DEC2000T); - break; - case 0x00070011: - ttusb_dec_set_model(dec, TTUSB_DEC2540T); - break; - default: - printk(KERN_ERR "%s: unknown model returned " - "by firmware (%08x) - please report\n", - __func__, model); - return -1; - break; - } + if (!mode) { + if (version == 0xABCDEFAB) + printk(KERN_INFO "ttusb_dec: no version " + "info in Firmware\n"); + else + printk(KERN_INFO "ttusb_dec: Firmware " + "%x.%02x%c%c\n", + version >> 24, (version >> 16) & 0xff, + (version >> 8) & 0xff, version & 0xff); + result = ttusb_dec_boot_dsp(dec); + if (result) + return result; + } else { + /* We can't trust the USB IDs that some firmwares + give the box */ + switch (model) { + case 0x00070001: + case 0x00070008: + case 0x0007000c: + ttusb_dec_set_model(dec, TTUSB_DEC3000S); + break; + case 0x00070009: + case 0x00070013: + ttusb_dec_set_model(dec, TTUSB_DEC2000T); + break; + case 0x00070011: + ttusb_dec_set_model(dec, TTUSB_DEC2540T); + break; + default: + printk(KERN_ERR "%s: unknown model returned " + "by firmware (%08x) - please report\n", + __func__, model); + return -ENOENT; + } if (version >= 0x01770000) dec->can_playback = 1; - - return 0; - } } - else - return result; + return 0; } static int ttusb_dec_init_dvb(struct ttusb_dec *dec) @@ -1539,19 +1541,7 @@ static void ttusb_dec_exit_dvb(struct ttusb_dec *dec) static void ttusb_dec_exit_rc(struct ttusb_dec *dec) { - dprintk("%s\n", __func__); - /* we have to check whether the irq URB is already submitted. - * As the irq is submitted after the interface is changed, - * this is the best method i figured out. - * Any others?*/ - if (dec->interface == TTUSB_DEC_INTERFACE_IN) - usb_kill_urb(dec->irq_urb); - - usb_free_urb(dec->irq_urb); - - usb_free_coherent(dec->udev,IRQ_PACKET_SIZE, - dec->irq_buffer, dec->irq_dma_handle); if (dec->rc_input_dev) { input_unregister_device(dec->rc_input_dev); @@ -1566,6 +1556,20 @@ static void ttusb_dec_exit_usb(struct ttusb_dec *dec) dprintk("%s\n", __func__); + if (enable_rc) { + /* we have to check whether the irq URB is already submitted. + * As the irq is submitted after the interface is changed, + * this is the best method i figured out. + * Any others?*/ + if (dec->interface == TTUSB_DEC_INTERFACE_IN) + usb_kill_urb(dec->irq_urb); + + usb_free_urb(dec->irq_urb); + + usb_free_coherent(dec->udev, IRQ_PACKET_SIZE, + dec->irq_buffer, dec->irq_dma_handle); + } + dec->iso_stream_count = 0; for (i = 0; i < ISO_BUF_COUNT; i++) @@ -1623,6 +1627,7 @@ static int ttusb_dec_probe(struct usb_interface *intf, { struct usb_device *udev; struct ttusb_dec *dec; + int result; dprintk("%s\n", __func__); @@ -1651,13 +1656,15 @@ static int ttusb_dec_probe(struct usb_interface *intf, dec->udev = udev; - if (ttusb_dec_init_usb(dec)) - return 0; - if (ttusb_dec_init_stb(dec)) { - ttusb_dec_exit_usb(dec); - return 0; - } - ttusb_dec_init_dvb(dec); + result = ttusb_dec_init_usb(dec); + if (result) + goto err_usb; + result = ttusb_dec_init_stb(dec); + if (result) + goto err_stb; + result = ttusb_dec_init_dvb(dec); + if (result) + goto err_stb; dec->adapter.priv = dec; switch (id->idProduct) { @@ -1696,6 +1703,11 @@ static int ttusb_dec_probe(struct usb_interface *intf, ttusb_init_rc(dec); return 0; +err_stb: + ttusb_dec_exit_usb(dec); +err_usb: + kfree(dec); + return result; } static void ttusb_dec_disconnect(struct usb_interface *intf) diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index a2f4501c23ca..0eb82106d2ff 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -664,7 +664,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .size = 32, .offset = 0, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, - .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, }, { .id = V4L2_CID_TILT_ABSOLUTE, @@ -674,7 +674,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = { .size = 32, .offset = 32, .v4l2_type = V4L2_CTRL_TYPE_INTEGER, - .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED, + .data_type = UVC_CTRL_DATA_TYPE_SIGNED, }, { .id = V4L2_CID_PRIVACY, diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 3394c3432011..899cb6d1c4a4 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -680,7 +680,8 @@ void uvc_video_clock_update(struct uvc_streaming *stream, stream->dev->name, sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536), y, ts.tv_sec, ts.tv_nsec / NSEC_PER_USEC, - v4l2_buf->timestamp.tv_sec, v4l2_buf->timestamp.tv_usec, + v4l2_buf->timestamp.tv_sec, + (unsigned long)v4l2_buf->timestamp.tv_usec, x1, first->host_sof, first->dev_sof, x2, last->host_sof, last->dev_sof, y1, y2); diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c index ddc9379eb276..20c09229a08e 100644 --- a/drivers/media/v4l2-core/tuner-core.c +++ b/drivers/media/v4l2-core/tuner-core.c @@ -43,7 +43,7 @@ #define UNSET (-1U) -#define PREFIX (t->i2c->driver->driver.name) +#define PREFIX (t->i2c->dev.driver->name) /* * Driver modprobe parameters @@ -247,7 +247,7 @@ static const struct analog_demod_ops tuner_analog_ops = { /** * set_type - Sets the tuner type for a given device * - * @c: i2c_client descriptoy + * @c: i2c_client descriptor * @type: type of the tuner (e. g. tuner number) * @new_mode_mask: Indicates if tuner supports TV and/or Radio * @new_config: an optional parameter used by a few tuners to adjust @@ -452,7 +452,7 @@ static void set_type(struct i2c_client *c, unsigned int type, } tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n", - c->adapter->name, c->driver->driver.name, c->addr << 1, type, + c->adapter->name, c->dev.driver->name, c->addr << 1, type, t->mode_mask); return; @@ -556,7 +556,7 @@ static void tuner_lookup(struct i2c_adapter *adap, int mode_mask; if (pos->i2c->adapter != adap || - strcmp(pos->i2c->driver->driver.name, "tuner")) + strcmp(pos->i2c->dev.driver->name, "tuner")) continue; mode_mask = pos->mode_mask; diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index c85d69da35bd..85a6a34128a8 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -189,30 +189,53 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) struct v4l2_subdev *sd, *tmp; unsigned int notif_n_subdev = notifier->num_subdevs; unsigned int n_subdev = min(notif_n_subdev, V4L2_MAX_SUBDEVS); - struct device *dev[n_subdev]; + struct device **dev; int i = 0; if (!notifier->v4l2_dev) return; + dev = kmalloc(n_subdev * sizeof(*dev), GFP_KERNEL); + if (!dev) { + dev_err(notifier->v4l2_dev->dev, + "Failed to allocate device cache!\n"); + } + mutex_lock(&list_lock); list_del(¬ifier->list); list_for_each_entry_safe(sd, tmp, ¬ifier->done, async_list) { - dev[i] = get_device(sd->dev); + struct device *d; + + d = get_device(sd->dev); v4l2_async_cleanup(sd); /* If we handled USB devices, we'd have to lock the parent too */ - device_release_driver(dev[i++]); + device_release_driver(d); if (notifier->unbind) notifier->unbind(notifier, sd, sd->asd); + + /* + * Store device at the device cache, in order to call + * put_device() on the final step + */ + if (dev) + dev[i++] = d; + else + put_device(d); } mutex_unlock(&list_lock); + /* + * Call device_attach() to reprobe devices + * + * NOTE: If dev allocation fails, i is 0, and the whole loop won't be + * executed. + */ while (i--) { struct device *d = dev[i]; @@ -228,6 +251,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) } put_device(d); } + kfree(dev); notifier->v4l2_dev = NULL; diff --git a/drivers/media/v4l2-core/v4l2-clk.c b/drivers/media/v4l2-core/v4l2-clk.c index b67de8642b5a..e18cc0469cf8 100644 --- a/drivers/media/v4l2-core/v4l2-clk.c +++ b/drivers/media/v4l2-core/v4l2-clk.c @@ -240,3 +240,42 @@ void v4l2_clk_unregister(struct v4l2_clk *clk) kfree(clk); } EXPORT_SYMBOL(v4l2_clk_unregister); + +struct v4l2_clk_fixed { + unsigned long rate; + struct v4l2_clk_ops ops; +}; + +static unsigned long fixed_get_rate(struct v4l2_clk *clk) +{ + struct v4l2_clk_fixed *priv = clk->priv; + return priv->rate; +} + +struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id, + const char *id, unsigned long rate, struct module *owner) +{ + struct v4l2_clk *clk; + struct v4l2_clk_fixed *priv = kzalloc(sizeof(*priv), GFP_KERNEL); + + if (!priv) + return ERR_PTR(-ENOMEM); + + priv->rate = rate; + priv->ops.get_rate = fixed_get_rate; + priv->ops.owner = owner; + + clk = v4l2_clk_register(&priv->ops, dev_id, id, priv); + if (IS_ERR(clk)) + kfree(priv); + + return clk; +} +EXPORT_SYMBOL(__v4l2_clk_register_fixed); + +void v4l2_clk_unregister_fixed(struct v4l2_clk *clk) +{ + kfree(clk->priv); + v4l2_clk_unregister(clk); +} +EXPORT_SYMBOL(v4l2_clk_unregister_fixed); diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c index 037d7a55aa8c..433d6d77942e 100644 --- a/drivers/media/v4l2-core/v4l2-common.c +++ b/drivers/media/v4l2-core/v4l2-common.c @@ -236,14 +236,14 @@ void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client, v4l2_subdev_init(sd, ops); sd->flags |= V4L2_SUBDEV_FL_IS_I2C; /* the owner is the same as the i2c_client's driver owner */ - sd->owner = client->driver->driver.owner; + sd->owner = client->dev.driver->owner; sd->dev = &client->dev; /* i2c_client and v4l2_subdev point to one another */ v4l2_set_subdevdata(sd, client); i2c_set_clientdata(client, sd); /* initialize name */ snprintf(sd->name, sizeof(sd->name), "%s %d-%04x", - client->driver->driver.name, i2c_adapter_id(client->adapter), + client->dev.driver->name, i2c_adapter_id(client->adapter), client->addr); } EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_init); @@ -274,11 +274,11 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev, loaded. This delay-load mechanism doesn't work if other drivers want to use the i2c device, so explicitly loading the module is the best alternative. */ - if (client == NULL || client->driver == NULL) + if (client == NULL || client->dev.driver == NULL) goto error; /* Lock the module so we can safely get the v4l2_subdev pointer */ - if (!try_module_get(client->driver->driver.owner)) + if (!try_module_get(client->dev.driver->owner)) goto error; sd = i2c_get_clientdata(client); @@ -287,7 +287,7 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev, if (v4l2_device_register_subdev(v4l2_dev, sd)) sd = NULL; /* Decrease the module use count to match the first try_module_get. */ - module_put(client->driver->driver.owner); + module_put(client->dev.driver->owner); error: /* If we have a client but no subdev, then something went wrong and diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index c3f080388684..60dcc0f3b32e 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -565,13 +565,13 @@ EXPORT_SYMBOL(v4l2_ctrl_get_menu); * Returns NULL or an s64 type array containing the menu for given * control ID. The total number of the menu items is returned in @len. */ -const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len) +const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len) { - static const s64 const qmenu_int_vpx_num_partitions[] = { + static const s64 qmenu_int_vpx_num_partitions[] = { 1, 2, 4, 8, }; - static const s64 const qmenu_int_vpx_num_ref_frames[] = { + static const s64 qmenu_int_vpx_num_ref_frames[] = { 1, 2, 3, }; @@ -583,7 +583,7 @@ const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len) default: *len = 0; return NULL; - }; + } } EXPORT_SYMBOL(v4l2_ctrl_get_int_menu); diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index 7c4371288215..73035ee0f4de 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -41,6 +41,8 @@ module_param(debug, bool, 0644); #define TRANS_QUEUED (1 << 0) /* Instance is currently running in hardware */ #define TRANS_RUNNING (1 << 1) +/* Instance is currently aborting */ +#define TRANS_ABORT (1 << 2) /* Offset base for buffers on the destination queue - used to distinguish @@ -221,6 +223,14 @@ static void v4l2_m2m_try_schedule(struct v4l2_m2m_ctx *m2m_ctx) } spin_lock_irqsave(&m2m_dev->job_spinlock, flags_job); + + /* If the context is aborted then don't schedule it */ + if (m2m_ctx->job_flags & TRANS_ABORT) { + spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags_job); + dprintk("Aborted context\n"); + return; + } + if (m2m_ctx->job_flags & TRANS_QUEUED) { spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags_job); dprintk("On job queue already\n"); @@ -280,6 +290,8 @@ static void v4l2_m2m_cancel_job(struct v4l2_m2m_ctx *m2m_ctx) m2m_dev = m2m_ctx->m2m_dev; spin_lock_irqsave(&m2m_dev->job_spinlock, flags); + + m2m_ctx->job_flags |= TRANS_ABORT; if (m2m_ctx->job_flags & TRANS_RUNNING) { spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags); m2m_dev->m2m_ops->job_abort(m2m_ctx->priv); @@ -480,13 +492,15 @@ int v4l2_m2m_streamoff(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, m2m_dev = m2m_ctx->m2m_dev; spin_lock_irqsave(&m2m_dev->job_spinlock, flags_job); /* We should not be scheduled anymore, since we're dropping a queue. */ - INIT_LIST_HEAD(&m2m_ctx->queue); + if (m2m_ctx->job_flags & TRANS_QUEUED) + list_del(&m2m_ctx->queue); m2m_ctx->job_flags = 0; spin_lock_irqsave(&q_ctx->rdy_spinlock, flags); /* Drop queue, since streamoff returns device to the same state as after * calling reqbufs. */ INIT_LIST_HEAD(&q_ctx->rdy_queue); + q_ctx->num_rdy = 0; spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); if (m2m_dev->curr_ctx == m2m_ctx) { diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index de0e87f0b2c3..b19b306c8f7f 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -241,7 +241,8 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum v4l2_memory memory, q->bufs[q->num_buffers + buffer] = vb; } - __setup_offsets(q, buffer); + if (memory == V4L2_MEMORY_MMAP) + __setup_offsets(q, buffer); dprintk(1, "Allocated %d buffers, %d plane(s) each\n", buffer, num_planes); @@ -1015,6 +1016,10 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const struct v4l2_buffer *b) /* Check if the provided plane buffer is large enough */ if (planes[plane].length < q->plane_sizes[plane]) { + dprintk(1, "qbuf: provided buffer size %u is less than " + "setup size %u for plane %d\n", + planes[plane].length, + q->plane_sizes[plane], plane); ret = -EINVAL; goto err; } @@ -1205,8 +1210,11 @@ static int __buf_prepare(struct vb2_buffer *vb, const struct v4l2_buffer *b) int ret; ret = __verify_length(vb, b); - if (ret < 0) + if (ret < 0) { + dprintk(1, "%s(): plane parameters verification failed: %d\n", + __func__, ret); return ret; + } switch (q->memory) { case V4L2_MEMORY_MMAP: @@ -2469,10 +2477,11 @@ size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, } EXPORT_SYMBOL_GPL(vb2_read); -size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count, +size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, loff_t *ppos, int nonblocking) { - return __vb2_perform_fileio(q, data, count, ppos, nonblocking, 0); + return __vb2_perform_fileio(q, (char __user *) data, count, + ppos, nonblocking, 0); } EXPORT_SYMBOL_GPL(vb2_write); @@ -2633,7 +2642,7 @@ int vb2_fop_release(struct file *file) } EXPORT_SYMBOL_GPL(vb2_fop_release); -ssize_t vb2_fop_write(struct file *file, char __user *buf, +ssize_t vb2_fop_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { struct video_device *vdev = video_devdata(file); diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c index 16ae3dcc7e29..2f860543912c 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c @@ -35,17 +35,61 @@ struct vb2_dma_sg_buf { struct page **pages; int write; int offset; - struct vb2_dma_sg_desc sg_desc; + struct sg_table sg_table; + size_t size; + unsigned int num_pages; atomic_t refcount; struct vb2_vmarea_handler handler; }; static void vb2_dma_sg_put(void *buf_priv); +static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf, + gfp_t gfp_flags) +{ + unsigned int last_page = 0; + int size = buf->size; + + while (size > 0) { + struct page *pages; + int order; + int i; + + order = get_order(size); + /* Dont over allocate*/ + if ((PAGE_SIZE << order) > size) + order--; + + pages = NULL; + while (!pages) { + pages = alloc_pages(GFP_KERNEL | __GFP_ZERO | + __GFP_NOWARN | gfp_flags, order); + if (pages) + break; + + if (order == 0) { + while (last_page--) + __free_page(buf->pages[last_page]); + return -ENOMEM; + } + order--; + } + + split_page(pages, order); + for (i = 0; i < (1 << order); i++) + buf->pages[last_page++] = &pages[i]; + + size -= PAGE_SIZE << order; + } + + return 0; +} + static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags) { struct vb2_dma_sg_buf *buf; - int i; + int ret; + int num_pages; buf = kzalloc(sizeof *buf, GFP_KERNEL); if (!buf) @@ -54,29 +98,23 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla buf->vaddr = NULL; buf->write = 0; buf->offset = 0; - buf->sg_desc.size = size; + buf->size = size; /* size is already page aligned */ - buf->sg_desc.num_pages = size >> PAGE_SHIFT; + buf->num_pages = size >> PAGE_SHIFT; - buf->sg_desc.sglist = vzalloc(buf->sg_desc.num_pages * - sizeof(*buf->sg_desc.sglist)); - if (!buf->sg_desc.sglist) - goto fail_sglist_alloc; - sg_init_table(buf->sg_desc.sglist, buf->sg_desc.num_pages); - - buf->pages = kzalloc(buf->sg_desc.num_pages * sizeof(struct page *), + buf->pages = kzalloc(buf->num_pages * sizeof(struct page *), GFP_KERNEL); if (!buf->pages) goto fail_pages_array_alloc; - for (i = 0; i < buf->sg_desc.num_pages; ++i) { - buf->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO | - __GFP_NOWARN | gfp_flags); - if (NULL == buf->pages[i]) - goto fail_pages_alloc; - sg_set_page(&buf->sg_desc.sglist[i], - buf->pages[i], PAGE_SIZE, 0); - } + ret = vb2_dma_sg_alloc_compacted(buf, gfp_flags); + if (ret) + goto fail_pages_alloc; + + ret = sg_alloc_table_from_pages(&buf->sg_table, buf->pages, + buf->num_pages, 0, size, gfp_flags); + if (ret) + goto fail_table_alloc; buf->handler.refcount = &buf->refcount; buf->handler.put = vb2_dma_sg_put; @@ -85,18 +123,16 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla atomic_inc(&buf->refcount); dprintk(1, "%s: Allocated buffer of %d pages\n", - __func__, buf->sg_desc.num_pages); + __func__, buf->num_pages); return buf; +fail_table_alloc: + num_pages = buf->num_pages; + while (num_pages--) + __free_page(buf->pages[num_pages]); fail_pages_alloc: - while (--i >= 0) - __free_page(buf->pages[i]); kfree(buf->pages); - fail_pages_array_alloc: - vfree(buf->sg_desc.sglist); - -fail_sglist_alloc: kfree(buf); return NULL; } @@ -104,14 +140,14 @@ fail_sglist_alloc: static void vb2_dma_sg_put(void *buf_priv) { struct vb2_dma_sg_buf *buf = buf_priv; - int i = buf->sg_desc.num_pages; + int i = buf->num_pages; if (atomic_dec_and_test(&buf->refcount)) { dprintk(1, "%s: Freeing buffer of %d pages\n", __func__, - buf->sg_desc.num_pages); + buf->num_pages); if (buf->vaddr) - vm_unmap_ram(buf->vaddr, buf->sg_desc.num_pages); - vfree(buf->sg_desc.sglist); + vm_unmap_ram(buf->vaddr, buf->num_pages); + sg_free_table(&buf->sg_table); while (--i >= 0) __free_page(buf->pages[i]); kfree(buf->pages); @@ -124,7 +160,7 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr, { struct vb2_dma_sg_buf *buf; unsigned long first, last; - int num_pages_from_user, i; + int num_pages_from_user; buf = kzalloc(sizeof *buf, GFP_KERNEL); if (!buf) @@ -133,56 +169,41 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr, buf->vaddr = NULL; buf->write = write; buf->offset = vaddr & ~PAGE_MASK; - buf->sg_desc.size = size; + buf->size = size; first = (vaddr & PAGE_MASK) >> PAGE_SHIFT; last = ((vaddr + size - 1) & PAGE_MASK) >> PAGE_SHIFT; - buf->sg_desc.num_pages = last - first + 1; - - buf->sg_desc.sglist = vzalloc( - buf->sg_desc.num_pages * sizeof(*buf->sg_desc.sglist)); - if (!buf->sg_desc.sglist) - goto userptr_fail_sglist_alloc; - - sg_init_table(buf->sg_desc.sglist, buf->sg_desc.num_pages); + buf->num_pages = last - first + 1; - buf->pages = kzalloc(buf->sg_desc.num_pages * sizeof(struct page *), + buf->pages = kzalloc(buf->num_pages * sizeof(struct page *), GFP_KERNEL); if (!buf->pages) - goto userptr_fail_pages_array_alloc; + return NULL; num_pages_from_user = get_user_pages(current, current->mm, vaddr & PAGE_MASK, - buf->sg_desc.num_pages, + buf->num_pages, write, 1, /* force */ buf->pages, NULL); - if (num_pages_from_user != buf->sg_desc.num_pages) + if (num_pages_from_user != buf->num_pages) goto userptr_fail_get_user_pages; - sg_set_page(&buf->sg_desc.sglist[0], buf->pages[0], - PAGE_SIZE - buf->offset, buf->offset); - size -= PAGE_SIZE - buf->offset; - for (i = 1; i < buf->sg_desc.num_pages; ++i) { - sg_set_page(&buf->sg_desc.sglist[i], buf->pages[i], - min_t(size_t, PAGE_SIZE, size), 0); - size -= min_t(size_t, PAGE_SIZE, size); - } + if (sg_alloc_table_from_pages(&buf->sg_table, buf->pages, + buf->num_pages, buf->offset, size, 0)) + goto userptr_fail_alloc_table_from_pages; + return buf; +userptr_fail_alloc_table_from_pages: userptr_fail_get_user_pages: dprintk(1, "get_user_pages requested/got: %d/%d]\n", - num_pages_from_user, buf->sg_desc.num_pages); + num_pages_from_user, buf->num_pages); while (--num_pages_from_user >= 0) put_page(buf->pages[num_pages_from_user]); kfree(buf->pages); - -userptr_fail_pages_array_alloc: - vfree(buf->sg_desc.sglist); - -userptr_fail_sglist_alloc: kfree(buf); return NULL; } @@ -194,18 +215,18 @@ userptr_fail_sglist_alloc: static void vb2_dma_sg_put_userptr(void *buf_priv) { struct vb2_dma_sg_buf *buf = buf_priv; - int i = buf->sg_desc.num_pages; + int i = buf->num_pages; dprintk(1, "%s: Releasing userspace buffer of %d pages\n", - __func__, buf->sg_desc.num_pages); + __func__, buf->num_pages); if (buf->vaddr) - vm_unmap_ram(buf->vaddr, buf->sg_desc.num_pages); + vm_unmap_ram(buf->vaddr, buf->num_pages); + sg_free_table(&buf->sg_table); while (--i >= 0) { if (buf->write) set_page_dirty_lock(buf->pages[i]); put_page(buf->pages[i]); } - vfree(buf->sg_desc.sglist); kfree(buf->pages); kfree(buf); } @@ -218,7 +239,7 @@ static void *vb2_dma_sg_vaddr(void *buf_priv) if (!buf->vaddr) buf->vaddr = vm_map_ram(buf->pages, - buf->sg_desc.num_pages, + buf->num_pages, -1, PAGE_KERNEL); @@ -274,7 +295,7 @@ static void *vb2_dma_sg_cookie(void *buf_priv) { struct vb2_dma_sg_buf *buf = buf_priv; - return &buf->sg_desc; + return &buf->sg_table; } const struct vb2_mem_ops vb2_dma_sg_memops = { diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index e760715bd9cb..a3e291d0df9a 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -381,19 +381,6 @@ config HMC6352 This driver provides support for the Honeywell HMC6352 compass, providing configuration and heading data via sysfs. -config EP93XX_PWM - tristate "EP93xx PWM support" - depends on ARCH_EP93XX - help - This option enables device driver support for the PWM channels - on the Cirrus EP93xx processors. The EP9307 chip only has one - PWM channel all the others have two, the second channel is an - alternate function of the EGPIO14 pin. A sysfs interface is - provided to control the PWM channels. - - To compile this driver as a module, choose M here: the module will - be called ep93xx_pwm. - config DS1682 tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm" depends on I2C diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 0b7ea3ea8bb8..f45473e68bf7 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -33,7 +33,6 @@ obj-$(CONFIG_APDS9802ALS) += apds9802als.o obj-$(CONFIG_ISL29003) += isl29003.o obj-$(CONFIG_ISL29020) += isl29020.o obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o -obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o obj-$(CONFIG_DS1682) += ds1682.o obj-$(CONFIG_TI_DAC7512) += ti_dac7512.o obj-$(CONFIG_C2PORT) += c2port/ diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c index 08b18f3f5264..9e2b985293fc 100644 --- a/drivers/misc/carma/carma-fpga.c +++ b/drivers/misc/carma/carma-fpga.c @@ -633,8 +633,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf) struct dma_async_tx_descriptor *tx; dma_cookie_t cookie; dma_addr_t dst, src; - unsigned long dma_flags = DMA_COMPL_SKIP_DEST_UNMAP | - DMA_COMPL_SKIP_SRC_UNMAP; + unsigned long dma_flags = 0; dst_sg = buf->vb.sglist; dst_nents = buf->vb.sglen; diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 94b8a3324319..d87f77f790d6 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -22,7 +22,7 @@ #include <linux/jiffies.h> #include <linux/of.h> #include <linux/i2c.h> -#include <linux/i2c/at24.h> +#include <linux/platform_data/at24.h> /* * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable. diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c deleted file mode 100644 index cdb67a9c1959..000000000000 --- a/drivers/misc/ep93xx_pwm.c +++ /dev/null @@ -1,286 +0,0 @@ -/* - * Simple PWM driver for EP93XX - * - * (c) Copyright 2009 Matthieu Crapet <mcrapet@gmail.com> - * (c) Copyright 2009 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * EP9307 has only one channel: - * - PWMOUT - * - * EP9301/02/12/15 have two channels: - * - PWMOUT - * - PWMOUT1 (alternate function for EGPIO14) - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/io.h> - -#include <mach/platform.h> - -#define EP93XX_PWMx_TERM_COUNT 0x00 -#define EP93XX_PWMx_DUTY_CYCLE 0x04 -#define EP93XX_PWMx_ENABLE 0x08 -#define EP93XX_PWMx_INVERT 0x0C - -#define EP93XX_PWM_MAX_COUNT 0xFFFF - -struct ep93xx_pwm { - void __iomem *mmio_base; - struct clk *clk; - u32 duty_percent; -}; - -/* - * /sys/devices/platform/ep93xx-pwm.N - * /min_freq read-only minimum pwm output frequency - * /max_req read-only maximum pwm output frequency - * /freq read-write pwm output frequency (0 = disable output) - * /duty_percent read-write pwm duty cycle percent (1..99) - * /invert read-write invert pwm output - */ - -static ssize_t ep93xx_pwm_get_min_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - unsigned long rate = clk_get_rate(pwm->clk); - - return sprintf(buf, "%ld\n", rate / (EP93XX_PWM_MAX_COUNT + 1)); -} - -static ssize_t ep93xx_pwm_get_max_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - unsigned long rate = clk_get_rate(pwm->clk); - - return sprintf(buf, "%ld\n", rate / 2); -} - -static ssize_t ep93xx_pwm_get_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - - if (readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1) { - unsigned long rate = clk_get_rate(pwm->clk); - u16 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - - return sprintf(buf, "%ld\n", rate / (term + 1)); - } else { - return sprintf(buf, "disabled\n"); - } -} - -static ssize_t ep93xx_pwm_set_freq(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - long val; - int err; - - err = kstrtol(buf, 10, &val); - if (err) - return -EINVAL; - - if (val == 0) { - writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE); - } else if (val <= (clk_get_rate(pwm->clk) / 2)) { - u32 term, duty; - - val = (clk_get_rate(pwm->clk) / val) - 1; - if (val > EP93XX_PWM_MAX_COUNT) - val = EP93XX_PWM_MAX_COUNT; - if (val < 1) - val = 1; - - term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - duty = ((val + 1) * pwm->duty_percent / 100) - 1; - - /* If pwm is running, order is important */ - if (val > term) { - writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); - } else { - writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); - writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - } - - if (!readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1) - writel(0x1, pwm->mmio_base + EP93XX_PWMx_ENABLE); - } else { - return -EINVAL; - } - - return count; -} - -static ssize_t ep93xx_pwm_get_duty_percent(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - - return sprintf(buf, "%d\n", pwm->duty_percent); -} - -static ssize_t ep93xx_pwm_set_duty_percent(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - long val; - int err; - - err = kstrtol(buf, 10, &val); - if (err) - return -EINVAL; - - if (val > 0 && val < 100) { - u32 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - u32 duty = ((term + 1) * val / 100) - 1; - - writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); - pwm->duty_percent = val; - return count; - } - - return -EINVAL; -} - -static ssize_t ep93xx_pwm_get_invert(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - int inverted = readl(pwm->mmio_base + EP93XX_PWMx_INVERT) & 0x1; - - return sprintf(buf, "%d\n", inverted); -} - -static ssize_t ep93xx_pwm_set_invert(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - long val; - int err; - - err = kstrtol(buf, 10, &val); - if (err) - return -EINVAL; - - if (val == 0) - writel(0x0, pwm->mmio_base + EP93XX_PWMx_INVERT); - else if (val == 1) - writel(0x1, pwm->mmio_base + EP93XX_PWMx_INVERT); - else - return -EINVAL; - - return count; -} - -static DEVICE_ATTR(min_freq, S_IRUGO, ep93xx_pwm_get_min_freq, NULL); -static DEVICE_ATTR(max_freq, S_IRUGO, ep93xx_pwm_get_max_freq, NULL); -static DEVICE_ATTR(freq, S_IWUSR | S_IRUGO, - ep93xx_pwm_get_freq, ep93xx_pwm_set_freq); -static DEVICE_ATTR(duty_percent, S_IWUSR | S_IRUGO, - ep93xx_pwm_get_duty_percent, ep93xx_pwm_set_duty_percent); -static DEVICE_ATTR(invert, S_IWUSR | S_IRUGO, - ep93xx_pwm_get_invert, ep93xx_pwm_set_invert); - -static struct attribute *ep93xx_pwm_attrs[] = { - &dev_attr_min_freq.attr, - &dev_attr_max_freq.attr, - &dev_attr_freq.attr, - &dev_attr_duty_percent.attr, - &dev_attr_invert.attr, - NULL -}; - -static const struct attribute_group ep93xx_pwm_sysfs_files = { - .attrs = ep93xx_pwm_attrs, -}; - -static int ep93xx_pwm_probe(struct platform_device *pdev) -{ - struct ep93xx_pwm *pwm; - struct resource *res; - int ret; - - pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL); - if (!pwm) - return -ENOMEM; - - pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk"); - if (IS_ERR(pwm->clk)) - return PTR_ERR(pwm->clk); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pwm->mmio_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pwm->mmio_base)) - return PTR_ERR(pwm->mmio_base); - - ret = ep93xx_pwm_acquire_gpio(pdev); - if (ret) - return ret; - - ret = sysfs_create_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files); - if (ret) { - ep93xx_pwm_release_gpio(pdev); - return ret; - } - - pwm->duty_percent = 50; - - /* disable pwm at startup. Avoids zero value. */ - writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE); - writel(EP93XX_PWM_MAX_COUNT, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT); - writel(EP93XX_PWM_MAX_COUNT/2, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE); - - clk_enable(pwm->clk); - - platform_set_drvdata(pdev, pwm); - return 0; -} - -static int ep93xx_pwm_remove(struct platform_device *pdev) -{ - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - - writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE); - clk_disable(pwm->clk); - sysfs_remove_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files); - ep93xx_pwm_release_gpio(pdev); - - return 0; -} - -static struct platform_driver ep93xx_pwm_driver = { - .driver = { - .name = "ep93xx-pwm", - .owner = THIS_MODULE, - }, - .probe = ep93xx_pwm_probe, - .remove = ep93xx_pwm_remove, -}; -module_platform_driver(ep93xx_pwm_driver); - -MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, " - "H Hartley Sweeten <hsweeten@visionengravers.com>"); -MODULE_DESCRIPTION("EP93xx PWM driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:ep93xx-pwm"); diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 1a3163f1407e..29d5d988a51c 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -2448,7 +2448,6 @@ static int _mmc_blk_suspend(struct mmc_card *card) struct mmc_blk_data *md = mmc_get_drvdata(card); if (md) { - pm_runtime_get_sync(&card->dev); mmc_queue_suspend(&md->queue); list_for_each_entry(part_md, &md->part, part) { mmc_queue_suspend(&part_md->queue); @@ -2483,7 +2482,6 @@ static int mmc_blk_resume(struct mmc_card *card) list_for_each_entry(part_md, &md->part, part) { mmc_queue_resume(&part_md->queue); } - pm_runtime_put(&card->dev); } return 0; } diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 3e227bd91e81..64145a32b917 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -342,7 +342,7 @@ int mmc_add_card(struct mmc_card *card) break; } - if (mmc_sd_card_uhs(card) && + if (mmc_card_uhs(card) && (card->sd_bus_speed < ARRAY_SIZE(uhs_speeds))) uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed]; diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index bf18b6bfce48..57a2b403bf8e 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -23,6 +23,7 @@ #include <linux/log2.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> +#include <linux/pm_wakeup.h> #include <linux/suspend.h> #include <linux/fault-inject.h> #include <linux/random.h> @@ -301,7 +302,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception) } err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal); + EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal, true); if (err) { pr_warn("%s: Error %d starting bkops\n", mmc_hostname(card->host), err); @@ -918,31 +919,6 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort) EXPORT_SYMBOL(__mmc_claim_host); /** - * mmc_try_claim_host - try exclusively to claim a host - * @host: mmc host to claim - * - * Returns %1 if the host is claimed, %0 otherwise. - */ -int mmc_try_claim_host(struct mmc_host *host) -{ - int claimed_host = 0; - unsigned long flags; - - spin_lock_irqsave(&host->lock, flags); - if (!host->claimed || host->claimer == current) { - host->claimed = 1; - host->claimer = current; - host->claim_cnt += 1; - claimed_host = 1; - } - spin_unlock_irqrestore(&host->lock, flags); - if (host->ops->enable && claimed_host && host->claim_cnt == 1) - host->ops->enable(host); - return claimed_host; -} -EXPORT_SYMBOL(mmc_try_claim_host); - -/** * mmc_release_host - release a host * @host: mmc host to release * @@ -1382,22 +1358,31 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr) { int bit; - ocr &= host->ocr_avail; + /* + * Sanity check the voltages that the card claims to + * support. + */ + if (ocr & 0x7F) { + dev_warn(mmc_dev(host), + "card claims to support voltages below defined range\n"); + ocr &= ~0x7F; + } - bit = ffs(ocr); - if (bit) { - bit -= 1; + ocr &= host->ocr_avail; + if (!ocr) { + dev_warn(mmc_dev(host), "no support for card's volts\n"); + return 0; + } + if (host->caps2 & MMC_CAP2_FULL_PWR_CYCLE) { + bit = ffs(ocr) - 1; ocr &= 3 << bit; - - mmc_host_clk_hold(host); - host->ios.vdd = bit; - mmc_set_ios(host); - mmc_host_clk_release(host); + mmc_power_cycle(host, ocr); } else { - pr_warning("%s: host doesn't support card's voltages\n", - mmc_hostname(host)); - ocr = 0; + bit = fls(ocr) - 1; + ocr &= 3 << bit; + if (bit != host->ios.vdd) + dev_warn(mmc_dev(host), "exceeding card's volts\n"); } return ocr; @@ -1422,7 +1407,7 @@ int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage) } -int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage) +int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr) { struct mmc_command cmd = {0}; int err = 0; @@ -1504,7 +1489,7 @@ power_cycle: if (err) { pr_debug("%s: Signal voltage switch failed, " "power cycling card\n", mmc_hostname(host)); - mmc_power_cycle(host); + mmc_power_cycle(host, ocr); } mmc_host_clk_release(host); @@ -1545,22 +1530,14 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type) * If a host does all the power sequencing itself, ignore the * initial MMC_POWER_UP stage. */ -void mmc_power_up(struct mmc_host *host) +void mmc_power_up(struct mmc_host *host, u32 ocr) { - int bit; - if (host->ios.power_mode == MMC_POWER_ON) return; mmc_host_clk_hold(host); - /* If ocr is set, we use it */ - if (host->ocr) - bit = ffs(host->ocr) - 1; - else - bit = fls(host->ocr_avail) - 1; - - host->ios.vdd = bit; + host->ios.vdd = fls(ocr) - 1; if (mmc_host_is_spi(host)) host->ios.chip_select = MMC_CS_HIGH; else @@ -1604,13 +1581,6 @@ void mmc_power_off(struct mmc_host *host) host->ios.clock = 0; host->ios.vdd = 0; - - /* - * Reset ocr mask to be the highest possible voltage supported for - * this mmc host. This value will be used at next power up. - */ - host->ocr = 1 << (fls(host->ocr_avail) - 1); - if (!mmc_host_is_spi(host)) { host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN; host->ios.chip_select = MMC_CS_DONTCARE; @@ -1630,12 +1600,12 @@ void mmc_power_off(struct mmc_host *host) mmc_host_clk_release(host); } -void mmc_power_cycle(struct mmc_host *host) +void mmc_power_cycle(struct mmc_host *host, u32 ocr) { mmc_power_off(host); /* Wait at least 1 ms according to SD spec */ mmc_delay(1); - mmc_power_up(host); + mmc_power_up(host, ocr); } /* @@ -1723,6 +1693,28 @@ void mmc_detach_bus(struct mmc_host *host) mmc_bus_put(host); } +static void _mmc_detect_change(struct mmc_host *host, unsigned long delay, + bool cd_irq) +{ +#ifdef CONFIG_MMC_DEBUG + unsigned long flags; + spin_lock_irqsave(&host->lock, flags); + WARN_ON(host->removed); + spin_unlock_irqrestore(&host->lock, flags); +#endif + + /* + * If the device is configured as wakeup, we prevent a new sleep for + * 5 s to give provision for user space to consume the event. + */ + if (cd_irq && !(host->caps & MMC_CAP_NEEDS_POLL) && + device_can_wakeup(mmc_dev(host))) + pm_wakeup_event(mmc_dev(host), 5000); + + host->detect_change = 1; + mmc_schedule_delayed_work(&host->detect, delay); +} + /** * mmc_detect_change - process change of state on a MMC socket * @host: host which changed state. @@ -1735,16 +1727,8 @@ void mmc_detach_bus(struct mmc_host *host) */ void mmc_detect_change(struct mmc_host *host, unsigned long delay) { -#ifdef CONFIG_MMC_DEBUG - unsigned long flags; - spin_lock_irqsave(&host->lock, flags); - WARN_ON(host->removed); - spin_unlock_irqrestore(&host->lock, flags); -#endif - host->detect_change = 1; - mmc_schedule_delayed_work(&host->detect, delay); + _mmc_detect_change(host, delay, true); } - EXPORT_SYMBOL(mmc_detect_change); void mmc_init_erase(struct mmc_card *card) @@ -2334,7 +2318,7 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq) pr_info("%s: %s: trying to init card at %u Hz\n", mmc_hostname(host), __func__, host->f_init); #endif - mmc_power_up(host); + mmc_power_up(host, host->ocr_avail); /* * Some eMMCs (with VCCQ always on) may not be reset after power up, so @@ -2423,7 +2407,7 @@ int mmc_detect_card_removed(struct mmc_host *host) * rescan handle the card removal. */ cancel_delayed_work(&host->detect); - mmc_detect_change(host, 0); + _mmc_detect_change(host, 0, false); } } @@ -2504,8 +2488,8 @@ void mmc_start_host(struct mmc_host *host) if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP) mmc_power_off(host); else - mmc_power_up(host); - mmc_detect_change(host, 0); + mmc_power_up(host, host->ocr_avail); + _mmc_detect_change(host, 0, false); } void mmc_stop_host(struct mmc_host *host) @@ -2583,7 +2567,7 @@ int mmc_power_restore_host(struct mmc_host *host) return -EINVAL; } - mmc_power_up(host); + mmc_power_up(host, host->card->ocr); ret = host->bus_ops->power_restore(host); mmc_bus_put(host); @@ -2657,28 +2641,6 @@ EXPORT_SYMBOL(mmc_cache_ctrl); #ifdef CONFIG_PM -/** - * mmc_suspend_host - suspend a host - * @host: mmc host - */ -int mmc_suspend_host(struct mmc_host *host) -{ - /* This function is deprecated */ - return 0; -} -EXPORT_SYMBOL(mmc_suspend_host); - -/** - * mmc_resume_host - resume a previously suspended host - * @host: mmc host - */ -int mmc_resume_host(struct mmc_host *host) -{ - /* This function is deprecated */ - return 0; -} -EXPORT_SYMBOL(mmc_resume_host); - /* Do the card removal on suspend if card is assumed removeable * Do that in pm notifier while userspace isn't yet frozen, so we will be able to sync the card. @@ -2724,7 +2686,7 @@ int mmc_pm_notify(struct notifier_block *notify_block, spin_lock_irqsave(&host->lock, flags); host->rescan_disable = 0; spin_unlock_irqrestore(&host->lock, flags); - mmc_detect_change(host, 0); + _mmc_detect_change(host, 0, false); } diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index 5345d156493e..443a584660f0 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -42,13 +42,13 @@ void mmc_set_ungated(struct mmc_host *host); void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); void mmc_set_bus_width(struct mmc_host *host, unsigned int width); u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); -int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); +int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr); int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage); void mmc_set_timing(struct mmc_host *host, unsigned int timing); void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type); -void mmc_power_up(struct mmc_host *host); +void mmc_power_up(struct mmc_host *host, u32 ocr); void mmc_power_off(struct mmc_host *host); -void mmc_power_cycle(struct mmc_host *host); +void mmc_power_cycle(struct mmc_host *host, u32 ocr); static inline void mmc_delay(unsigned int ms) { diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 6d02012a1d0b..f631f5a9bf79 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -13,6 +13,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/stat.h> +#include <linux/pm_runtime.h> #include <linux/mmc/host.h> #include <linux/mmc/card.h> @@ -934,6 +935,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, goto err; } + card->ocr = ocr; card->type = MMC_TYPE_MMC; card->rca = 1; memcpy(card->raw_cid, cid, sizeof(card->raw_cid)); @@ -1404,9 +1406,9 @@ static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type) if (notify_type == EXT_CSD_POWER_OFF_LONG) timeout = card->ext_csd.power_off_longtime; - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_POWER_OFF_NOTIFICATION, - notify_type, timeout); + err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_POWER_OFF_NOTIFICATION, + notify_type, timeout, true, false); if (err) pr_err("%s: Power Off Notification timed out, %u\n", mmc_hostname(card->host), timeout); @@ -1477,6 +1479,9 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend) mmc_claim_host(host); + if (mmc_card_suspended(host->card)) + goto out; + if (mmc_card_doing_bkops(host->card)) { err = mmc_stop_bkops(host->card); if (err) @@ -1496,51 +1501,93 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend) err = mmc_deselect_cards(host); host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200); - if (!err) + if (!err) { mmc_power_off(host); + mmc_card_set_suspended(host->card); + } out: mmc_release_host(host); return err; } /* - * Suspend callback from host. + * Suspend callback */ static int mmc_suspend(struct mmc_host *host) { - return _mmc_suspend(host, true); -} + int err; -/* - * Shutdown callback - */ -static int mmc_shutdown(struct mmc_host *host) -{ - return _mmc_suspend(host, false); + err = _mmc_suspend(host, true); + if (!err) { + pm_runtime_disable(&host->card->dev); + pm_runtime_set_suspended(&host->card->dev); + } + + return err; } /* - * Resume callback from host. - * * This function tries to determine if the same card is still present * and, if so, restore all state to it. */ -static int mmc_resume(struct mmc_host *host) +static int _mmc_resume(struct mmc_host *host) { - int err; + int err = 0; BUG_ON(!host); BUG_ON(!host->card); mmc_claim_host(host); - mmc_power_up(host); - mmc_select_voltage(host, host->ocr); - err = mmc_init_card(host, host->ocr, host->card); + + if (!mmc_card_suspended(host->card)) + goto out; + + mmc_power_up(host, host->card->ocr); + err = mmc_init_card(host, host->card->ocr, host->card); + mmc_card_clr_suspended(host->card); + +out: mmc_release_host(host); + return err; +} + +/* + * Shutdown callback + */ +static int mmc_shutdown(struct mmc_host *host) +{ + int err = 0; + + /* + * In a specific case for poweroff notify, we need to resume the card + * before we can shutdown it properly. + */ + if (mmc_can_poweroff_notify(host->card) && + !(host->caps2 & MMC_CAP2_FULL_PWR_CYCLE)) + err = _mmc_resume(host); + + if (!err) + err = _mmc_suspend(host, false); return err; } +/* + * Callback for resume. + */ +static int mmc_resume(struct mmc_host *host) +{ + int err = 0; + + if (!(host->caps & MMC_CAP_RUNTIME_RESUME)) { + err = _mmc_resume(host); + pm_runtime_set_active(&host->card->dev); + pm_runtime_mark_last_busy(&host->card->dev); + } + pm_runtime_enable(&host->card->dev); + + return err; +} /* * Callback for runtime_suspend. @@ -1552,18 +1599,11 @@ static int mmc_runtime_suspend(struct mmc_host *host) if (!(host->caps & MMC_CAP_AGGRESSIVE_PM)) return 0; - mmc_claim_host(host); - - err = mmc_suspend(host); - if (err) { + err = _mmc_suspend(host, true); + if (err) pr_err("%s: error %d doing aggessive suspend\n", mmc_hostname(host), err); - goto out; - } - mmc_power_off(host); -out: - mmc_release_host(host); return err; } @@ -1574,18 +1614,14 @@ static int mmc_runtime_resume(struct mmc_host *host) { int err; - if (!(host->caps & MMC_CAP_AGGRESSIVE_PM)) + if (!(host->caps & (MMC_CAP_AGGRESSIVE_PM | MMC_CAP_RUNTIME_RESUME))) return 0; - mmc_claim_host(host); - - mmc_power_up(host); - err = mmc_resume(host); + err = _mmc_resume(host); if (err) pr_err("%s: error %d doing aggessive resume\n", mmc_hostname(host), err); - mmc_release_host(host); return 0; } @@ -1595,7 +1631,7 @@ static int mmc_power_restore(struct mmc_host *host) host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200); mmc_claim_host(host); - ret = mmc_init_card(host, host->ocr, host->card); + ret = mmc_init_card(host, host->card->ocr, host->card); mmc_release_host(host); return ret; @@ -1640,7 +1676,7 @@ static void mmc_attach_bus_ops(struct mmc_host *host) int mmc_attach_mmc(struct mmc_host *host) { int err; - u32 ocr; + u32 ocr, rocr; BUG_ON(!host); WARN_ON(!host->claimed); @@ -1666,23 +1702,12 @@ int mmc_attach_mmc(struct mmc_host *host) goto err; } - /* - * Sanity check the voltages that the card claims to - * support. - */ - if (ocr & 0x7F) { - pr_warning("%s: card claims to support voltages " - "below the defined range. These will be ignored.\n", - mmc_hostname(host)); - ocr &= ~0x7F; - } - - host->ocr = mmc_select_voltage(host, ocr); + rocr = mmc_select_voltage(host, ocr); /* * Can we support the voltage of the card? */ - if (!host->ocr) { + if (!rocr) { err = -EINVAL; goto err; } @@ -1690,7 +1715,7 @@ int mmc_attach_mmc(struct mmc_host *host) /* * Detect and init the card. */ - err = mmc_init_card(host, host->ocr, NULL); + err = mmc_init_card(host, rocr, NULL); if (err) goto err; diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index ef183483d5b6..e5b5eeb548d1 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -23,6 +23,40 @@ #define MMC_OPS_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ +static inline int __mmc_send_status(struct mmc_card *card, u32 *status, + bool ignore_crc) +{ + int err; + struct mmc_command cmd = {0}; + + BUG_ON(!card); + BUG_ON(!card->host); + + cmd.opcode = MMC_SEND_STATUS; + if (!mmc_host_is_spi(card->host)) + cmd.arg = card->rca << 16; + cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC; + if (ignore_crc) + cmd.flags &= ~MMC_RSP_CRC; + + err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES); + if (err) + return err; + + /* NOTE: callers are required to understand the difference + * between "native" and SPI format status words! + */ + if (status) + *status = cmd.resp[0]; + + return 0; +} + +int mmc_send_status(struct mmc_card *card, u32 *status) +{ + return __mmc_send_status(card, status, false); +} + static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card) { int err; @@ -370,16 +404,18 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc) * @timeout_ms: timeout (ms) for operation performed by register write, * timeout of zero implies maximum possible timeout * @use_busy_signal: use the busy signal as response type + * @send_status: send status cmd to poll for busy * * Modifies the EXT_CSD register for selected card. */ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, - unsigned int timeout_ms, bool use_busy_signal) + unsigned int timeout_ms, bool use_busy_signal, bool send_status) { int err; struct mmc_command cmd = {0}; unsigned long timeout; - u32 status; + u32 status = 0; + bool ignore_crc = false; BUG_ON(!card); BUG_ON(!card->host); @@ -408,17 +444,37 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, if (!use_busy_signal) return 0; - /* Must check status to be sure of no errors */ + /* + * Must check status to be sure of no errors + * If CMD13 is to check the busy completion of the timing change, + * disable the check of CRC error. + */ + if (index == EXT_CSD_HS_TIMING && + !(card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)) + ignore_crc = true; + timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS); do { - err = mmc_send_status(card, &status); - if (err) - return err; + if (send_status) { + err = __mmc_send_status(card, &status, ignore_crc); + if (err) + return err; + } if (card->host->caps & MMC_CAP_WAIT_WHILE_BUSY) break; if (mmc_host_is_spi(card->host)) break; + /* + * We are not allowed to issue a status command and the host + * does'nt support MMC_CAP_WAIT_WHILE_BUSY, then we can only + * rely on waiting for the stated timeout to be sufficient. + */ + if (!send_status) { + mmc_delay(timeout_ms); + return 0; + } + /* Timeout if the device never leaves the program state. */ if (time_after(jiffies, timeout)) { pr_err("%s: Card stuck in programming state! %s\n", @@ -445,36 +501,10 @@ EXPORT_SYMBOL_GPL(__mmc_switch); int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, unsigned int timeout_ms) { - return __mmc_switch(card, set, index, value, timeout_ms, true); + return __mmc_switch(card, set, index, value, timeout_ms, true, true); } EXPORT_SYMBOL_GPL(mmc_switch); -int mmc_send_status(struct mmc_card *card, u32 *status) -{ - int err; - struct mmc_command cmd = {0}; - - BUG_ON(!card); - BUG_ON(!card->host); - - cmd.opcode = MMC_SEND_STATUS; - if (!mmc_host_is_spi(card->host)) - cmd.arg = card->rca << 16; - cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC; - - err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES); - if (err) - return err; - - /* NOTE: callers are required to understand the difference - * between "native" and SPI format status words! - */ - if (status) - *status = cmd.resp[0]; - - return 0; -} - static int mmc_send_bus_test(struct mmc_card *card, struct mmc_host *host, u8 opcode, u8 len) diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 5e8823dc3ef6..6f42050b7ccc 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -13,6 +13,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/stat.h> +#include <linux/pm_runtime.h> #include <linux/mmc/host.h> #include <linux/mmc/card.h> @@ -721,6 +722,7 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr) int err; u32 max_current; int retries = 10; + u32 pocr = ocr; try_again: if (!retries) { @@ -773,7 +775,8 @@ try_again: */ if (!mmc_host_is_spi(host) && rocr && ((*rocr & 0x41000000) == 0x41000000)) { - err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); + err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, + pocr); if (err == -EAGAIN) { retries--; goto try_again; @@ -935,6 +938,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, if (IS_ERR(card)) return PTR_ERR(card); + card->ocr = ocr; card->type = MMC_TYPE_SD; memcpy(card->raw_cid, cid, sizeof(card->raw_cid)); } @@ -1064,10 +1068,7 @@ static void mmc_sd_detect(struct mmc_host *host) } } -/* - * Suspend callback from host. - */ -static int mmc_sd_suspend(struct mmc_host *host) +static int _mmc_sd_suspend(struct mmc_host *host) { int err = 0; @@ -1075,34 +1076,77 @@ static int mmc_sd_suspend(struct mmc_host *host) BUG_ON(!host->card); mmc_claim_host(host); + + if (mmc_card_suspended(host->card)) + goto out; + if (!mmc_host_is_spi(host)) err = mmc_deselect_cards(host); host->card->state &= ~MMC_STATE_HIGHSPEED; - if (!err) + if (!err) { mmc_power_off(host); + mmc_card_set_suspended(host->card); + } + +out: mmc_release_host(host); + return err; +} + +/* + * Callback for suspend + */ +static int mmc_sd_suspend(struct mmc_host *host) +{ + int err; + + err = _mmc_sd_suspend(host); + if (!err) { + pm_runtime_disable(&host->card->dev); + pm_runtime_set_suspended(&host->card->dev); + } return err; } /* - * Resume callback from host. - * * This function tries to determine if the same card is still present * and, if so, restore all state to it. */ -static int mmc_sd_resume(struct mmc_host *host) +static int _mmc_sd_resume(struct mmc_host *host) { - int err; + int err = 0; BUG_ON(!host); BUG_ON(!host->card); mmc_claim_host(host); - mmc_power_up(host); - mmc_select_voltage(host, host->ocr); - err = mmc_sd_init_card(host, host->ocr, host->card); + + if (!mmc_card_suspended(host->card)) + goto out; + + mmc_power_up(host, host->card->ocr); + err = mmc_sd_init_card(host, host->card->ocr, host->card); + mmc_card_clr_suspended(host->card); + +out: mmc_release_host(host); + return err; +} + +/* + * Callback for resume + */ +static int mmc_sd_resume(struct mmc_host *host) +{ + int err = 0; + + if (!(host->caps & MMC_CAP_RUNTIME_RESUME)) { + err = _mmc_sd_resume(host); + pm_runtime_set_active(&host->card->dev); + pm_runtime_mark_last_busy(&host->card->dev); + } + pm_runtime_enable(&host->card->dev); return err; } @@ -1117,18 +1161,11 @@ static int mmc_sd_runtime_suspend(struct mmc_host *host) if (!(host->caps & MMC_CAP_AGGRESSIVE_PM)) return 0; - mmc_claim_host(host); - - err = mmc_sd_suspend(host); - if (err) { + err = _mmc_sd_suspend(host); + if (err) pr_err("%s: error %d doing aggessive suspend\n", mmc_hostname(host), err); - goto out; - } - mmc_power_off(host); -out: - mmc_release_host(host); return err; } @@ -1139,18 +1176,14 @@ static int mmc_sd_runtime_resume(struct mmc_host *host) { int err; - if (!(host->caps & MMC_CAP_AGGRESSIVE_PM)) + if (!(host->caps & (MMC_CAP_AGGRESSIVE_PM | MMC_CAP_RUNTIME_RESUME))) return 0; - mmc_claim_host(host); - - mmc_power_up(host); - err = mmc_sd_resume(host); + err = _mmc_sd_resume(host); if (err) pr_err("%s: error %d doing aggessive resume\n", mmc_hostname(host), err); - mmc_release_host(host); return 0; } @@ -1160,7 +1193,7 @@ static int mmc_sd_power_restore(struct mmc_host *host) host->card->state &= ~MMC_STATE_HIGHSPEED; mmc_claim_host(host); - ret = mmc_sd_init_card(host, host->ocr, host->card); + ret = mmc_sd_init_card(host, host->card->ocr, host->card); mmc_release_host(host); return ret; @@ -1205,7 +1238,7 @@ static void mmc_sd_attach_bus_ops(struct mmc_host *host) int mmc_attach_sd(struct mmc_host *host) { int err; - u32 ocr; + u32 ocr, rocr; BUG_ON(!host); WARN_ON(!host->claimed); @@ -1229,31 +1262,12 @@ int mmc_attach_sd(struct mmc_host *host) goto err; } - /* - * Sanity check the voltages that the card claims to - * support. - */ - if (ocr & 0x7F) { - pr_warning("%s: card claims to support voltages " - "below the defined range. These will be ignored.\n", - mmc_hostname(host)); - ocr &= ~0x7F; - } - - if ((ocr & MMC_VDD_165_195) && - !(host->ocr_avail_sd & MMC_VDD_165_195)) { - pr_warning("%s: SD card claims to support the " - "incompletely defined 'low voltage range'. This " - "will be ignored.\n", mmc_hostname(host)); - ocr &= ~MMC_VDD_165_195; - } - - host->ocr = mmc_select_voltage(host, ocr); + rocr = mmc_select_voltage(host, ocr); /* * Can we support the voltage(s) of the card(s)? */ - if (!host->ocr) { + if (!rocr) { err = -EINVAL; goto err; } @@ -1261,7 +1275,7 @@ int mmc_attach_sd(struct mmc_host *host) /* * Detect and init the card. */ - err = mmc_sd_init_card(host, host->ocr, NULL); + err = mmc_sd_init_card(host, rocr, NULL); if (err) goto err; diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 80d89cff7306..4d721c6e2af0 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -593,23 +593,28 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr, struct mmc_card *card; int err; int retries = 10; + u32 rocr = 0; + u32 ocr_card = ocr; BUG_ON(!host); WARN_ON(!host->claimed); + /* to query card if 1.8V signalling is supported */ + if (mmc_host_uhs(host)) + ocr |= R4_18V_PRESENT; + try_again: if (!retries) { pr_warning("%s: Skipping voltage switch\n", mmc_hostname(host)); ocr &= ~R4_18V_PRESENT; - host->ocr &= ~R4_18V_PRESENT; } /* * Inform the card of the voltage */ if (!powered_resume) { - err = mmc_send_io_op_cond(host, host->ocr, &ocr); + err = mmc_send_io_op_cond(host, ocr, &rocr); if (err) goto err; } @@ -632,8 +637,8 @@ try_again: goto err; } - if ((ocr & R4_MEMORY_PRESENT) && - mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid, NULL) == 0) { + if ((rocr & R4_MEMORY_PRESENT) && + mmc_sd_get_cid(host, ocr & rocr, card->raw_cid, NULL) == 0) { card->type = MMC_TYPE_SD_COMBO; if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO || @@ -663,8 +668,9 @@ try_again: * systems that claim 1.8v signalling in fact do not support * it. */ - if (!powered_resume && (ocr & R4_18V_PRESENT) && mmc_host_uhs(host)) { - err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180); + if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) { + err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180, + ocr); if (err == -EAGAIN) { sdio_reset(host); mmc_go_idle(host); @@ -674,12 +680,10 @@ try_again: goto try_again; } else if (err) { ocr &= ~R4_18V_PRESENT; - host->ocr &= ~R4_18V_PRESENT; } err = 0; } else { ocr &= ~R4_18V_PRESENT; - host->ocr &= ~R4_18V_PRESENT; } /* @@ -759,6 +763,7 @@ try_again: card = oldcard; } + card->ocr = ocr_card; mmc_fixup_device(card, NULL); if (card->type == MMC_TYPE_SD_COMBO) { @@ -981,8 +986,7 @@ static int mmc_sdio_resume(struct mmc_host *host) /* Restore power if needed */ if (!mmc_card_keep_power(host)) { - mmc_power_up(host); - mmc_select_voltage(host, host->ocr); + mmc_power_up(host, host->card->ocr); /* * Tell runtime PM core we just powered up the card, * since it still believes the card is powered off. @@ -1000,7 +1004,7 @@ static int mmc_sdio_resume(struct mmc_host *host) if (mmc_card_is_removable(host) || !mmc_card_keep_power(host)) { sdio_reset(host); mmc_go_idle(host); - err = mmc_sdio_init_card(host, host->ocr, host->card, + err = mmc_sdio_init_card(host, host->card->ocr, host->card, mmc_card_keep_power(host)); } else if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) { /* We may have switched to 1-bit mode during suspend */ @@ -1040,7 +1044,6 @@ static int mmc_sdio_resume(struct mmc_host *host) static int mmc_sdio_power_restore(struct mmc_host *host) { int ret; - u32 ocr; BUG_ON(!host); BUG_ON(!host->card); @@ -1062,32 +1065,17 @@ static int mmc_sdio_power_restore(struct mmc_host *host) * for OLPC SD8686 (which expects a [CMD5,5,3,7] init sequence), and * harmless in other situations. * - * With these steps taken, mmc_select_voltage() is also required to - * restore the correct voltage setting of the card. */ sdio_reset(host); mmc_go_idle(host); mmc_send_if_cond(host, host->ocr_avail); - ret = mmc_send_io_op_cond(host, 0, &ocr); + ret = mmc_send_io_op_cond(host, 0, NULL); if (ret) goto out; - if (host->ocr_avail_sdio) - host->ocr_avail = host->ocr_avail_sdio; - - host->ocr = mmc_select_voltage(host, ocr & ~0x7F); - if (!host->ocr) { - ret = -EINVAL; - goto out; - } - - if (mmc_host_uhs(host)) - /* to query card if 1.8V signalling is supported */ - host->ocr |= R4_18V_PRESENT; - - ret = mmc_sdio_init_card(host, host->ocr, host->card, + ret = mmc_sdio_init_card(host, host->card->ocr, host->card, mmc_card_keep_power(host)); if (!ret && host->sdio_irqs) mmc_signal_sdio_irq(host); @@ -1108,7 +1096,7 @@ static int mmc_sdio_runtime_suspend(struct mmc_host *host) static int mmc_sdio_runtime_resume(struct mmc_host *host) { /* Restore power and re-initialize. */ - mmc_power_up(host); + mmc_power_up(host, host->card->ocr); return mmc_sdio_power_restore(host); } @@ -1131,7 +1119,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = { int mmc_attach_sdio(struct mmc_host *host) { int err, i, funcs; - u32 ocr; + u32 ocr, rocr; struct mmc_card *card; BUG_ON(!host); @@ -1145,23 +1133,13 @@ int mmc_attach_sdio(struct mmc_host *host) if (host->ocr_avail_sdio) host->ocr_avail = host->ocr_avail_sdio; - /* - * Sanity check the voltages that the card claims to - * support. - */ - if (ocr & 0x7F) { - pr_warning("%s: card claims to support voltages " - "below the defined range. These will be ignored.\n", - mmc_hostname(host)); - ocr &= ~0x7F; - } - host->ocr = mmc_select_voltage(host, ocr); + rocr = mmc_select_voltage(host, ocr); /* * Can we support the voltage(s) of the card(s)? */ - if (!host->ocr) { + if (!rocr) { err = -EINVAL; goto err; } @@ -1169,22 +1147,10 @@ int mmc_attach_sdio(struct mmc_host *host) /* * Detect and init the card. */ - if (mmc_host_uhs(host)) - /* to query card if 1.8V signalling is supported */ - host->ocr |= R4_18V_PRESENT; + err = mmc_sdio_init_card(host, rocr, NULL, 0); + if (err) + goto err; - err = mmc_sdio_init_card(host, host->ocr, NULL, 0); - if (err) { - if (err == -EAGAIN) { - /* - * Retry initialization with S18R set to 0. - */ - host->ocr &= ~R4_18V_PRESENT; - err = mmc_sdio_init_card(host, host->ocr, NULL, 0); - } - if (err) - goto err; - } card = host->card; /* diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index ef8956568c3a..157b570ba343 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -308,8 +308,7 @@ static void sdio_acpi_set_handle(struct sdio_func *func) struct mmc_host *host = func->card->host; u64 addr = (host->slotno << 16) | func->num; - ACPI_HANDLE_SET(&func->dev, - acpi_get_child(ACPI_HANDLE(host->parent), addr)); + acpi_preset_companion(&func->dev, ACPI_HANDLE(host->parent), addr); } #else static inline void sdio_acpi_set_handle(struct sdio_func *func) {} diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 69e438ee043e..2cbb4516d353 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -255,7 +255,6 @@ struct atmel_mci_slot { #define ATMCI_CARD_PRESENT 0 #define ATMCI_CARD_NEED_INIT 1 #define ATMCI_SHUTDOWN 2 -#define ATMCI_SUSPENDED 3 int detect_pin; int wp_pin; @@ -589,6 +588,13 @@ static void atmci_timeout_timer(unsigned long data) if (host->mrq->cmd->data) { host->mrq->cmd->data->error = -ETIMEDOUT; host->data = NULL; + /* + * With some SDIO modules, sometimes DMA transfer hangs. If + * stop_transfer() is not called then the DMA request is not + * removed, following ones are queued and never computed. + */ + if (host->state == STATE_DATA_XFER) + host->stop_transfer(host); } else { host->mrq->cmd->error = -ETIMEDOUT; host->cmd = NULL; @@ -1803,12 +1809,14 @@ static void atmci_tasklet_func(unsigned long priv) if (unlikely(status)) { host->stop_transfer(host); host->data = NULL; - if (status & ATMCI_DTOE) { - data->error = -ETIMEDOUT; - } else if (status & ATMCI_DCRCE) { - data->error = -EILSEQ; - } else { - data->error = -EIO; + if (data) { + if (status & ATMCI_DTOE) { + data->error = -ETIMEDOUT; + } else if (status & ATMCI_DCRCE) { + data->error = -EILSEQ; + } else { + data->error = -EIO; + } } } @@ -2520,70 +2528,10 @@ static int __exit atmci_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int atmci_suspend(struct device *dev) -{ - struct atmel_mci *host = dev_get_drvdata(dev); - int i; - - for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) { - struct atmel_mci_slot *slot = host->slot[i]; - int ret; - - if (!slot) - continue; - ret = mmc_suspend_host(slot->mmc); - if (ret < 0) { - while (--i >= 0) { - slot = host->slot[i]; - if (slot - && test_bit(ATMCI_SUSPENDED, &slot->flags)) { - mmc_resume_host(host->slot[i]->mmc); - clear_bit(ATMCI_SUSPENDED, &slot->flags); - } - } - return ret; - } else { - set_bit(ATMCI_SUSPENDED, &slot->flags); - } - } - - return 0; -} - -static int atmci_resume(struct device *dev) -{ - struct atmel_mci *host = dev_get_drvdata(dev); - int i; - int ret = 0; - - for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) { - struct atmel_mci_slot *slot = host->slot[i]; - int err; - - slot = host->slot[i]; - if (!slot) - continue; - if (!test_bit(ATMCI_SUSPENDED, &slot->flags)) - continue; - err = mmc_resume_host(slot->mmc); - if (err < 0) - ret = err; - else - clear_bit(ATMCI_SUSPENDED, &slot->flags); - } - - return ret; -} -#endif - -static SIMPLE_DEV_PM_OPS(atmci_pm, atmci_suspend, atmci_resume); - static struct platform_driver atmci_driver = { .remove = __exit_p(atmci_remove), .driver = { .name = "atmel_mci", - .pm = &atmci_pm, .of_match_table = of_match_ptr(atmci_dt_ids), }, }; diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c index df9becdd2e99..f5443a6c4915 100644 --- a/drivers/mmc/host/au1xmmc.c +++ b/drivers/mmc/host/au1xmmc.c @@ -1157,11 +1157,6 @@ static int au1xmmc_remove(struct platform_device *pdev) static int au1xmmc_suspend(struct platform_device *pdev, pm_message_t state) { struct au1xmmc_host *host = platform_get_drvdata(pdev); - int ret; - - ret = mmc_suspend_host(host->mmc); - if (ret) - return ret; au_writel(0, HOST_CONFIG2(host)); au_writel(0, HOST_CONFIG(host)); @@ -1178,7 +1173,7 @@ static int au1xmmc_resume(struct platform_device *pdev) au1xmmc_reset_controller(host); - return mmc_resume_host(host->mmc); + return 0; } #else #define au1xmmc_suspend NULL diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c index 94fae2f1baaf..2b7f37e82ca9 100644 --- a/drivers/mmc/host/bfin_sdh.c +++ b/drivers/mmc/host/bfin_sdh.c @@ -391,6 +391,7 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) /* Disable 4 bit SDIO */ cfg &= ~SD4E; } + bfin_write_SDH_CFG(cfg); host->power_mode = ios->power_mode; #ifndef RSI_BLKSZ @@ -415,7 +416,6 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) cfg &= ~SD_CMD_OD; # endif - if (ios->power_mode != MMC_POWER_OFF) cfg |= PWR_ON; else @@ -433,7 +433,6 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) clk_ctl |= CLK_E; host->clk_div = clk_div; bfin_write_SDH_CLK_CTL(clk_ctl); - } else sdh_stop_clock(host); @@ -640,21 +639,15 @@ static int sdh_remove(struct platform_device *pdev) #ifdef CONFIG_PM static int sdh_suspend(struct platform_device *dev, pm_message_t state) { - struct mmc_host *mmc = platform_get_drvdata(dev); struct bfin_sd_host *drv_data = get_sdh_data(dev); - int ret = 0; - - if (mmc) - ret = mmc_suspend_host(mmc); peripheral_free_list(drv_data->pin_req); - return ret; + return 0; } static int sdh_resume(struct platform_device *dev) { - struct mmc_host *mmc = platform_get_drvdata(dev); struct bfin_sd_host *drv_data = get_sdh_data(dev); int ret = 0; @@ -665,10 +658,6 @@ static int sdh_resume(struct platform_device *dev) } sdh_reset(); - - if (mmc) - ret = mmc_resume_host(mmc); - return ret; } #else diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c index 9d6e2b844404..1087b4c79cd6 100644 --- a/drivers/mmc/host/cb710-mmc.c +++ b/drivers/mmc/host/cb710-mmc.c @@ -667,12 +667,6 @@ static const struct mmc_host_ops cb710_mmc_host = { static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state) { struct cb710_slot *slot = cb710_pdev_to_slot(pdev); - struct mmc_host *mmc = cb710_slot_to_mmc(slot); - int err; - - err = mmc_suspend_host(mmc); - if (err) - return err; cb710_mmc_enable_irq(slot, 0, ~0); return 0; @@ -681,11 +675,9 @@ static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state) static int cb710_mmc_resume(struct platform_device *pdev) { struct cb710_slot *slot = cb710_pdev_to_slot(pdev); - struct mmc_host *mmc = cb710_slot_to_mmc(slot); cb710_mmc_enable_irq(slot, 0, ~0); - - return mmc_resume_host(mmc); + return 0; } #endif /* CONFIG_PM */ diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c index e9fa87df909c..d6153740b77f 100644 --- a/drivers/mmc/host/davinci_mmc.c +++ b/drivers/mmc/host/davinci_mmc.c @@ -193,7 +193,6 @@ struct mmc_davinci_host { #define DAVINCI_MMC_DATADIR_READ 1 #define DAVINCI_MMC_DATADIR_WRITE 2 unsigned char data_dir; - unsigned char suspended; /* buffer is used during PIO of one scatterlist segment, and * is updated along with buffer_bytes_left. bytes_left applies @@ -1435,38 +1434,23 @@ static int davinci_mmcsd_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct mmc_davinci_host *host = platform_get_drvdata(pdev); - int ret; - ret = mmc_suspend_host(host->mmc); - if (!ret) { - writel(0, host->base + DAVINCI_MMCIM); - mmc_davinci_reset_ctrl(host, 1); - clk_disable(host->clk); - host->suspended = 1; - } else { - host->suspended = 0; - } + writel(0, host->base + DAVINCI_MMCIM); + mmc_davinci_reset_ctrl(host, 1); + clk_disable(host->clk); - return ret; + return 0; } static int davinci_mmcsd_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct mmc_davinci_host *host = platform_get_drvdata(pdev); - int ret; - - if (!host->suspended) - return 0; clk_enable(host->clk); - mmc_davinci_reset_ctrl(host, 0); - ret = mmc_resume_host(host->mmc); - if (!ret) - host->suspended = 0; - return ret; + return 0; } static const struct dev_pm_ops davinci_mmcsd_pm = { diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 6a1fa2110a05..3423c5ed50c7 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -14,8 +14,10 @@ #include <linux/clk.h> #include <linux/mmc/host.h> #include <linux/mmc/dw_mmc.h> +#include <linux/mmc/mmc.h> #include <linux/of.h> #include <linux/of_gpio.h> +#include <linux/slab.h> #include "dw_mmc.h" #include "dw_mmc-pltfm.h" @@ -30,16 +32,39 @@ #define SDMMC_CLKSEL_TIMING(x, y, z) (SDMMC_CLKSEL_CCLK_SAMPLE(x) | \ SDMMC_CLKSEL_CCLK_DRIVE(y) | \ SDMMC_CLKSEL_CCLK_DIVIDER(z)) +#define SDMMC_CLKSEL_WAKEUP_INT BIT(11) #define EXYNOS4210_FIXED_CIU_CLK_DIV 2 #define EXYNOS4412_FIXED_CIU_CLK_DIV 4 +/* Block number in eMMC */ +#define DWMCI_BLOCK_NUM 0xFFFFFFFF + +#define SDMMC_EMMCP_BASE 0x1000 +#define SDMMC_MPSECURITY (SDMMC_EMMCP_BASE + 0x0010) +#define SDMMC_MPSBEGIN0 (SDMMC_EMMCP_BASE + 0x0200) +#define SDMMC_MPSEND0 (SDMMC_EMMCP_BASE + 0x0204) +#define SDMMC_MPSCTRL0 (SDMMC_EMMCP_BASE + 0x020C) + +/* SMU control bits */ +#define DWMCI_MPSCTRL_SECURE_READ_BIT BIT(7) +#define DWMCI_MPSCTRL_SECURE_WRITE_BIT BIT(6) +#define DWMCI_MPSCTRL_NON_SECURE_READ_BIT BIT(5) +#define DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT BIT(4) +#define DWMCI_MPSCTRL_USE_FUSE_KEY BIT(3) +#define DWMCI_MPSCTRL_ECB_MODE BIT(2) +#define DWMCI_MPSCTRL_ENCRYPTION BIT(1) +#define DWMCI_MPSCTRL_VALID BIT(0) + +#define EXYNOS_CCLKIN_MIN 50000000 /* unit: HZ */ + /* Variations in Exynos specific dw-mshc controller */ enum dw_mci_exynos_type { DW_MCI_TYPE_EXYNOS4210, DW_MCI_TYPE_EXYNOS4412, DW_MCI_TYPE_EXYNOS5250, DW_MCI_TYPE_EXYNOS5420, + DW_MCI_TYPE_EXYNOS5420_SMU, }; /* Exynos implementation specific driver private data */ @@ -48,6 +73,7 @@ struct dw_mci_exynos_priv_data { u8 ciu_div; u32 sdr_timing; u32 ddr_timing; + u32 cur_speed; }; static struct dw_mci_exynos_compatible { @@ -66,44 +92,80 @@ static struct dw_mci_exynos_compatible { }, { .compatible = "samsung,exynos5420-dw-mshc", .ctrl_type = DW_MCI_TYPE_EXYNOS5420, + }, { + .compatible = "samsung,exynos5420-dw-mshc-smu", + .ctrl_type = DW_MCI_TYPE_EXYNOS5420_SMU, }, }; static int dw_mci_exynos_priv_init(struct dw_mci *host) { - struct dw_mci_exynos_priv_data *priv; - int idx; - - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(host->dev, "mem alloc failed for private data\n"); - return -ENOMEM; - } + struct dw_mci_exynos_priv_data *priv = host->priv; - for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { - if (of_device_is_compatible(host->dev->of_node, - exynos_compat[idx].compatible)) - priv->ctrl_type = exynos_compat[idx].ctrl_type; + if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU) { + mci_writel(host, MPSBEGIN0, 0); + mci_writel(host, MPSEND0, DWMCI_BLOCK_NUM); + mci_writel(host, MPSCTRL0, DWMCI_MPSCTRL_SECURE_WRITE_BIT | + DWMCI_MPSCTRL_NON_SECURE_READ_BIT | + DWMCI_MPSCTRL_VALID | + DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT); } - host->priv = priv; return 0; } static int dw_mci_exynos_setup_clock(struct dw_mci *host) { struct dw_mci_exynos_priv_data *priv = host->priv; + unsigned long rate = clk_get_rate(host->ciu_clk); - if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5250 || - priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420) - host->bus_hz /= (priv->ciu_div + 1); - else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412) - host->bus_hz /= EXYNOS4412_FIXED_CIU_CLK_DIV; - else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210) - host->bus_hz /= EXYNOS4210_FIXED_CIU_CLK_DIV; + host->bus_hz = rate / (priv->ciu_div + 1); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int dw_mci_exynos_suspend(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + return dw_mci_suspend(host); +} + +static int dw_mci_exynos_resume(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + dw_mci_exynos_priv_init(host); + return dw_mci_resume(host); +} + +/** + * dw_mci_exynos_resume_noirq - Exynos-specific resume code + * + * On exynos5420 there is a silicon errata that will sometimes leave the + * WAKEUP_INT bit in the CLKSEL register asserted. This bit is 1 to indicate + * that it fired and we can clear it by writing a 1 back. Clear it to prevent + * interrupts from going off constantly. + * + * We run this code on all exynos variants because it doesn't hurt. + */ + +static int dw_mci_exynos_resume_noirq(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + u32 clksel; + + clksel = mci_readl(host, CLKSEL); + if (clksel & SDMMC_CLKSEL_WAKEUP_INT) + mci_writel(host, CLKSEL, clksel); return 0; } +#else +#define dw_mci_exynos_suspend NULL +#define dw_mci_exynos_resume NULL +#define dw_mci_exynos_resume_noirq NULL +#endif /* CONFIG_PM_SLEEP */ static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr) { @@ -121,23 +183,68 @@ static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr) static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) { struct dw_mci_exynos_priv_data *priv = host->priv; + unsigned int wanted = ios->clock; + unsigned long actual; + u8 div = priv->ciu_div + 1; - if (ios->timing == MMC_TIMING_UHS_DDR50) + if (ios->timing == MMC_TIMING_UHS_DDR50) { mci_writel(host, CLKSEL, priv->ddr_timing); - else + /* Should be double rate for DDR mode */ + if (ios->bus_width == MMC_BUS_WIDTH_8) + wanted <<= 1; + } else { mci_writel(host, CLKSEL, priv->sdr_timing); + } + + /* Don't care if wanted clock is zero */ + if (!wanted) + return; + + /* Guaranteed minimum frequency for cclkin */ + if (wanted < EXYNOS_CCLKIN_MIN) + wanted = EXYNOS_CCLKIN_MIN; + + if (wanted != priv->cur_speed) { + int ret = clk_set_rate(host->ciu_clk, wanted * div); + if (ret) + dev_warn(host->dev, + "failed to set clk-rate %u error: %d\n", + wanted * div, ret); + actual = clk_get_rate(host->ciu_clk); + host->bus_hz = actual / div; + priv->cur_speed = wanted; + host->current_speed = 0; + } } static int dw_mci_exynos_parse_dt(struct dw_mci *host) { - struct dw_mci_exynos_priv_data *priv = host->priv; + struct dw_mci_exynos_priv_data *priv; struct device_node *np = host->dev->of_node; u32 timing[2]; u32 div = 0; + int idx; int ret; - of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); - priv->ciu_div = div; + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(host->dev, "mem alloc failed for private data\n"); + return -ENOMEM; + } + + for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) { + if (of_device_is_compatible(np, exynos_compat[idx].compatible)) + priv->ctrl_type = exynos_compat[idx].ctrl_type; + } + + if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412) + priv->ciu_div = EXYNOS4412_FIXED_CIU_CLK_DIV - 1; + else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210) + priv->ciu_div = EXYNOS4210_FIXED_CIU_CLK_DIV - 1; + else { + of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div); + priv->ciu_div = div; + } ret = of_property_read_u32_array(np, "samsung,dw-mshc-sdr-timing", timing, 2); @@ -152,9 +259,131 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host) return ret; priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div); + host->priv = priv; return 0; } +static inline u8 dw_mci_exynos_get_clksmpl(struct dw_mci *host) +{ + return SDMMC_CLKSEL_CCLK_SAMPLE(mci_readl(host, CLKSEL)); +} + +static inline void dw_mci_exynos_set_clksmpl(struct dw_mci *host, u8 sample) +{ + u32 clksel; + clksel = mci_readl(host, CLKSEL); + clksel = (clksel & ~0x7) | SDMMC_CLKSEL_CCLK_SAMPLE(sample); + mci_writel(host, CLKSEL, clksel); +} + +static inline u8 dw_mci_exynos_move_next_clksmpl(struct dw_mci *host) +{ + u32 clksel; + u8 sample; + + clksel = mci_readl(host, CLKSEL); + sample = (clksel + 1) & 0x7; + clksel = (clksel & ~0x7) | sample; + mci_writel(host, CLKSEL, clksel); + return sample; +} + +static s8 dw_mci_exynos_get_best_clksmpl(u8 candiates) +{ + const u8 iter = 8; + u8 __c; + s8 i, loc = -1; + + for (i = 0; i < iter; i++) { + __c = ror8(candiates, i); + if ((__c & 0xc7) == 0xc7) { + loc = i; + goto out; + } + } + + for (i = 0; i < iter; i++) { + __c = ror8(candiates, i); + if ((__c & 0x83) == 0x83) { + loc = i; + goto out; + } + } + +out: + return loc; +} + +static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode, + struct dw_mci_tuning_data *tuning_data) +{ + struct dw_mci *host = slot->host; + struct mmc_host *mmc = slot->mmc; + const u8 *blk_pattern = tuning_data->blk_pattern; + u8 *blk_test; + unsigned int blksz = tuning_data->blksz; + u8 start_smpl, smpl, candiates = 0; + s8 found = -1; + int ret = 0; + + blk_test = kmalloc(blksz, GFP_KERNEL); + if (!blk_test) + return -ENOMEM; + + start_smpl = dw_mci_exynos_get_clksmpl(host); + + do { + struct mmc_request mrq = {NULL}; + struct mmc_command cmd = {0}; + struct mmc_command stop = {0}; + struct mmc_data data = {0}; + struct scatterlist sg; + + cmd.opcode = opcode; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + + stop.opcode = MMC_STOP_TRANSMISSION; + stop.arg = 0; + stop.flags = MMC_RSP_R1B | MMC_CMD_AC; + + data.blksz = blksz; + data.blocks = 1; + data.flags = MMC_DATA_READ; + data.sg = &sg; + data.sg_len = 1; + + sg_init_one(&sg, blk_test, blksz); + mrq.cmd = &cmd; + mrq.stop = &stop; + mrq.data = &data; + host->mrq = &mrq; + + mci_writel(host, TMOUT, ~0); + smpl = dw_mci_exynos_move_next_clksmpl(host); + + mmc_wait_for_req(mmc, &mrq); + + if (!cmd.error && !data.error) { + if (!memcmp(blk_pattern, blk_test, blksz)) + candiates |= (1 << smpl); + } else { + dev_dbg(host->dev, + "Tuning error: cmd.error:%d, data.error:%d\n", + cmd.error, data.error); + } + } while (start_smpl != smpl); + + found = dw_mci_exynos_get_best_clksmpl(candiates); + if (found >= 0) + dw_mci_exynos_set_clksmpl(host, found); + else + ret = -EIO; + + kfree(blk_test); + return ret; +} + /* Common capabilities of Exynos4/Exynos5 SoC */ static unsigned long exynos_dwmmc_caps[4] = { MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR | @@ -171,6 +400,7 @@ static const struct dw_mci_drv_data exynos_drv_data = { .prepare_command = dw_mci_exynos_prepare_command, .set_ios = dw_mci_exynos_set_ios, .parse_dt = dw_mci_exynos_parse_dt, + .execute_tuning = dw_mci_exynos_execute_tuning, }; static const struct of_device_id dw_mci_exynos_match[] = { @@ -180,6 +410,8 @@ static const struct of_device_id dw_mci_exynos_match[] = { .data = &exynos_drv_data, }, { .compatible = "samsung,exynos5420-dw-mshc", .data = &exynos_drv_data, }, + { .compatible = "samsung,exynos5420-dw-mshc-smu", + .data = &exynos_drv_data, }, {}, }; MODULE_DEVICE_TABLE(of, dw_mci_exynos_match); @@ -194,13 +426,20 @@ static int dw_mci_exynos_probe(struct platform_device *pdev) return dw_mci_pltfm_register(pdev, drv_data); } +const struct dev_pm_ops dw_mci_exynos_pmops = { + SET_SYSTEM_SLEEP_PM_OPS(dw_mci_exynos_suspend, dw_mci_exynos_resume) + .resume_noirq = dw_mci_exynos_resume_noirq, + .thaw_noirq = dw_mci_exynos_resume_noirq, + .restore_noirq = dw_mci_exynos_resume_noirq, +}; + static struct platform_driver dw_mci_exynos_pltfm_driver = { .probe = dw_mci_exynos_probe, .remove = __exit_p(dw_mci_pltfm_remove), .driver = { .name = "dwmmc_exynos", .of_match_table = dw_mci_exynos_match, - .pm = &dw_mci_pltfm_pmops, + .pm = &dw_mci_exynos_pmops, }, }; diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c index 20897529ea5e..5c4965655297 100644 --- a/drivers/mmc/host/dw_mmc-pltfm.c +++ b/drivers/mmc/host/dw_mmc-pltfm.c @@ -39,7 +39,6 @@ int dw_mci_pltfm_register(struct platform_device *pdev, { struct dw_mci *host; struct resource *regs; - int ret; host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); if (!host) @@ -59,12 +58,6 @@ int dw_mci_pltfm_register(struct platform_device *pdev, if (IS_ERR(host->regs)) return PTR_ERR(host->regs); - if (drv_data && drv_data->init) { - ret = drv_data->init(host); - if (ret) - return ret; - } - platform_set_drvdata(pdev, host); return dw_mci_probe(host); } diff --git a/drivers/mmc/host/dw_mmc-socfpga.c b/drivers/mmc/host/dw_mmc-socfpga.c index 14b5961a851c..3e8e53ae3302 100644 --- a/drivers/mmc/host/dw_mmc-socfpga.c +++ b/drivers/mmc/host/dw_mmc-socfpga.c @@ -38,21 +38,6 @@ struct dw_mci_socfpga_priv_data { static int dw_mci_socfpga_priv_init(struct dw_mci *host) { - struct dw_mci_socfpga_priv_data *priv; - - priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) { - dev_err(host->dev, "mem alloc failed for private data\n"); - return -ENOMEM; - } - - priv->sysreg = syscon_regmap_lookup_by_compatible("altr,sys-mgr"); - if (IS_ERR(priv->sysreg)) { - dev_err(host->dev, "regmap for altr,sys-mgr lookup failed.\n"); - return PTR_ERR(priv->sysreg); - } - host->priv = priv; - return 0; } @@ -79,12 +64,24 @@ static void dw_mci_socfpga_prepare_command(struct dw_mci *host, u32 *cmdr) static int dw_mci_socfpga_parse_dt(struct dw_mci *host) { - struct dw_mci_socfpga_priv_data *priv = host->priv; + struct dw_mci_socfpga_priv_data *priv; struct device_node *np = host->dev->of_node; u32 timing[2]; u32 div = 0; int ret; + priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(host->dev, "mem alloc failed for private data\n"); + return -ENOMEM; + } + + priv->sysreg = syscon_regmap_lookup_by_compatible("altr,sys-mgr"); + if (IS_ERR(priv->sysreg)) { + dev_err(host->dev, "regmap for altr,sys-mgr lookup failed.\n"); + return PTR_ERR(priv->sysreg); + } + ret = of_property_read_u32(np, "altr,dw-mshc-ciu-div", &div); if (ret) dev_info(host->dev, "No dw-mshc-ciu-div specified, assuming 1"); @@ -96,6 +93,7 @@ static int dw_mci_socfpga_parse_dt(struct dw_mci *host) return ret; priv->hs_timing = SYSMGR_SDMMC_CTRL_SET(timing[0], timing[1]); + host->priv = priv; return 0; } @@ -113,7 +111,7 @@ static const struct of_device_id dw_mci_socfpga_match[] = { }; MODULE_DEVICE_TABLE(of, dw_mci_socfpga_match); -int dw_mci_socfpga_probe(struct platform_device *pdev) +static int dw_mci_socfpga_probe(struct platform_device *pdev) { const struct dw_mci_drv_data *drv_data; const struct of_device_id *match; @@ -128,7 +126,7 @@ static struct platform_driver dw_mci_socfpga_pltfm_driver = { .remove = __exit_p(dw_mci_pltfm_remove), .driver = { .name = "dwmmc_socfpga", - .of_match_table = of_match_ptr(dw_mci_socfpga_match), + .of_match_table = dw_mci_socfpga_match, .pm = &dw_mci_pltfm_pmops, }, }; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 018f365e5ae4..4bce0deec362 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -29,6 +29,7 @@ #include <linux/irq.h> #include <linux/mmc/host.h> #include <linux/mmc/mmc.h> +#include <linux/mmc/sdio.h> #include <linux/mmc/dw_mmc.h> #include <linux/bitops.h> #include <linux/regulator/consumer.h> @@ -50,6 +51,9 @@ #define DW_MCI_RECV_STATUS 2 #define DW_MCI_DMA_THRESHOLD 16 +#define DW_MCI_FREQ_MAX 200000000 /* unit: HZ */ +#define DW_MCI_FREQ_MIN 400000 /* unit: HZ */ + #ifdef CONFIG_MMC_DW_IDMAC #define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \ SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \ @@ -76,42 +80,39 @@ struct idmac_desc { }; #endif /* CONFIG_MMC_DW_IDMAC */ -/** - * struct dw_mci_slot - MMC slot state - * @mmc: The mmc_host representing this slot. - * @host: The MMC controller this slot is using. - * @quirks: Slot-level quirks (DW_MCI_SLOT_QUIRK_XXX) - * @wp_gpio: If gpio_is_valid() we'll use this to read write protect. - * @ctype: Card type for this slot. - * @mrq: mmc_request currently being processed or waiting to be - * processed, or NULL when the slot is idle. - * @queue_node: List node for placing this node in the @queue list of - * &struct dw_mci. - * @clock: Clock rate configured by set_ios(). Protected by host->lock. - * @flags: Random state bits associated with the slot. - * @id: Number of this slot. - * @last_detect_state: Most recently observed card detect state. - */ -struct dw_mci_slot { - struct mmc_host *mmc; - struct dw_mci *host; - - int quirks; - int wp_gpio; - - u32 ctype; - - struct mmc_request *mrq; - struct list_head queue_node; +static const u8 tuning_blk_pattern_4bit[] = { + 0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc, + 0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef, + 0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb, + 0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef, + 0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c, + 0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee, + 0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff, + 0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde, +}; - unsigned int clock; - unsigned long flags; -#define DW_MMC_CARD_PRESENT 0 -#define DW_MMC_CARD_NEED_INIT 1 - int id; - int last_detect_state; +static const u8 tuning_blk_pattern_8bit[] = { + 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, + 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc, + 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff, + 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff, + 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd, + 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb, + 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff, + 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff, + 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, + 0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, + 0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, + 0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, + 0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, + 0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, + 0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, + 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, }; +static inline bool dw_mci_fifo_reset(struct dw_mci *host); +static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host); + #if defined(CONFIG_DEBUG_FS) static int dw_mci_req_show(struct seq_file *s, void *v) { @@ -249,10 +250,15 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd) cmdr = cmd->opcode; - if (cmdr == MMC_STOP_TRANSMISSION) + if (cmd->opcode == MMC_STOP_TRANSMISSION || + cmd->opcode == MMC_GO_IDLE_STATE || + cmd->opcode == MMC_GO_INACTIVE_STATE || + (cmd->opcode == SD_IO_RW_DIRECT && + ((cmd->arg >> 9) & 0x1FFFF) == SDIO_CCCR_ABORT)) cmdr |= SDMMC_CMD_STOP; else - cmdr |= SDMMC_CMD_PRV_DAT_WAIT; + if (cmd->opcode != MMC_SEND_STATUS && cmd->data) + cmdr |= SDMMC_CMD_PRV_DAT_WAIT; if (cmd->flags & MMC_RSP_PRESENT) { /* We expect a response, so set this bit */ @@ -279,6 +285,40 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd) return cmdr; } +static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) +{ + struct mmc_command *stop; + u32 cmdr; + + if (!cmd->data) + return 0; + + stop = &host->stop_abort; + cmdr = cmd->opcode; + memset(stop, 0, sizeof(struct mmc_command)); + + if (cmdr == MMC_READ_SINGLE_BLOCK || + cmdr == MMC_READ_MULTIPLE_BLOCK || + cmdr == MMC_WRITE_BLOCK || + cmdr == MMC_WRITE_MULTIPLE_BLOCK) { + stop->opcode = MMC_STOP_TRANSMISSION; + stop->arg = 0; + stop->flags = MMC_RSP_R1B | MMC_CMD_AC; + } else if (cmdr == SD_IO_RW_EXTENDED) { + stop->opcode = SD_IO_RW_DIRECT; + stop->arg |= (1 << 31) | (0 << 28) | (SDIO_CCCR_ABORT << 9) | + ((cmd->arg >> 28) & 0x7); + stop->flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_AC; + } else { + return 0; + } + + cmdr = stop->opcode | SDMMC_CMD_STOP | + SDMMC_CMD_RESP_CRC | SDMMC_CMD_RESP_EXP; + + return cmdr; +} + static void dw_mci_start_command(struct dw_mci *host, struct mmc_command *cmd, u32 cmd_flags) { @@ -293,9 +333,10 @@ static void dw_mci_start_command(struct dw_mci *host, mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START); } -static void send_stop_cmd(struct dw_mci *host, struct mmc_data *data) +static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data) { - dw_mci_start_command(host, data->stop, host->stop_cmdr); + struct mmc_command *stop = data->stop ? data->stop : &host->stop_abort; + dw_mci_start_command(host, stop, host->stop_cmdr); } /* DMA interface functions */ @@ -304,10 +345,10 @@ static void dw_mci_stop_dma(struct dw_mci *host) if (host->using_dma) { host->dma_ops->stop(host); host->dma_ops->cleanup(host); - } else { - /* Data transfer was stopped by the interrupt handler */ - set_bit(EVENT_XFER_COMPLETE, &host->pending_events); } + + /* Data transfer was stopped by the interrupt handler */ + set_bit(EVENT_XFER_COMPLETE, &host->pending_events); } static int dw_mci_get_dma_dir(struct mmc_data *data) @@ -331,6 +372,14 @@ static void dw_mci_dma_cleanup(struct dw_mci *host) dw_mci_get_dma_dir(data)); } +static void dw_mci_idmac_reset(struct dw_mci *host) +{ + u32 bmod = mci_readl(host, BMOD); + /* Software reset of DMA */ + bmod |= SDMMC_IDMAC_SWRESET; + mci_writel(host, BMOD, bmod); +} + static void dw_mci_idmac_stop_dma(struct dw_mci *host) { u32 temp; @@ -344,6 +393,7 @@ static void dw_mci_idmac_stop_dma(struct dw_mci *host) /* Stop the IDMAC running */ temp = mci_readl(host, BMOD); temp &= ~(SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB); + temp |= SDMMC_IDMAC_SWRESET; mci_writel(host, BMOD, temp); } @@ -435,7 +485,7 @@ static int dw_mci_idmac_init(struct dw_mci *host) p->des3 = host->sg_dma; p->des0 = IDMAC_DES0_ER; - mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET); + dw_mci_idmac_reset(host); /* Mask out interrupts - get Tx & Rx complete only */ mci_writel(host, IDSTS, IDMAC_INT_CLR); @@ -532,6 +582,78 @@ static void dw_mci_post_req(struct mmc_host *mmc, data->host_cookie = 0; } +static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data) +{ +#ifdef CONFIG_MMC_DW_IDMAC + unsigned int blksz = data->blksz; + const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256}; + u32 fifo_width = 1 << host->data_shift; + u32 blksz_depth = blksz / fifo_width, fifoth_val; + u32 msize = 0, rx_wmark = 1, tx_wmark, tx_wmark_invers; + int idx = (sizeof(mszs) / sizeof(mszs[0])) - 1; + + tx_wmark = (host->fifo_depth) / 2; + tx_wmark_invers = host->fifo_depth - tx_wmark; + + /* + * MSIZE is '1', + * if blksz is not a multiple of the FIFO width + */ + if (blksz % fifo_width) { + msize = 0; + rx_wmark = 1; + goto done; + } + + do { + if (!((blksz_depth % mszs[idx]) || + (tx_wmark_invers % mszs[idx]))) { + msize = idx; + rx_wmark = mszs[idx] - 1; + break; + } + } while (--idx > 0); + /* + * If idx is '0', it won't be tried + * Thus, initial values are uesed + */ +done: + fifoth_val = SDMMC_SET_FIFOTH(msize, rx_wmark, tx_wmark); + mci_writel(host, FIFOTH, fifoth_val); +#endif +} + +static void dw_mci_ctrl_rd_thld(struct dw_mci *host, struct mmc_data *data) +{ + unsigned int blksz = data->blksz; + u32 blksz_depth, fifo_depth; + u16 thld_size; + + WARN_ON(!(data->flags & MMC_DATA_READ)); + + if (host->timing != MMC_TIMING_MMC_HS200 && + host->timing != MMC_TIMING_UHS_SDR104) + goto disable; + + blksz_depth = blksz / (1 << host->data_shift); + fifo_depth = host->fifo_depth; + + if (blksz_depth > fifo_depth) + goto disable; + + /* + * If (blksz_depth) >= (fifo_depth >> 1), should be 'thld_size <= blksz' + * If (blksz_depth) < (fifo_depth >> 1), should be thld_size = blksz + * Currently just choose blksz. + */ + thld_size = blksz; + mci_writel(host, CDTHRCTL, SDMMC_SET_RD_THLD(thld_size, 1)); + return; + +disable: + mci_writel(host, CDTHRCTL, SDMMC_SET_RD_THLD(0, 0)); +} + static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) { int sg_len; @@ -556,6 +678,14 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) (unsigned long)host->sg_cpu, (unsigned long)host->sg_dma, sg_len); + /* + * Decide the MSIZE and RX/TX Watermark. + * If current block size is same with previous size, + * no need to update fifoth. + */ + if (host->prev_blksz != data->blksz) + dw_mci_adjust_fifoth(host, data); + /* Enable the DMA interface */ temp = mci_readl(host, CTRL); temp |= SDMMC_CTRL_DMA_ENABLE; @@ -581,10 +711,12 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data) host->sg = NULL; host->data = data; - if (data->flags & MMC_DATA_READ) + if (data->flags & MMC_DATA_READ) { host->dir_status = DW_MCI_RECV_STATUS; - else + dw_mci_ctrl_rd_thld(host, data); + } else { host->dir_status = DW_MCI_SEND_STATUS; + } if (dw_mci_submit_data_dma(host, data)) { int flags = SG_MITER_ATOMIC; @@ -606,6 +738,21 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data) temp = mci_readl(host, CTRL); temp &= ~SDMMC_CTRL_DMA_ENABLE; mci_writel(host, CTRL, temp); + + /* + * Use the initial fifoth_val for PIO mode. + * If next issued data may be transfered by DMA mode, + * prev_blksz should be invalidated. + */ + mci_writel(host, FIFOTH, host->fifoth_val); + host->prev_blksz = 0; + } else { + /* + * Keep the current block size. + * It will be used to decide whether to update + * fifoth register next time. + */ + host->prev_blksz = data->blksz; } } @@ -632,24 +779,31 @@ static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg) static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit) { struct dw_mci *host = slot->host; + unsigned int clock = slot->clock; u32 div; u32 clk_en_a; - if (slot->clock != host->current_speed || force_clkinit) { - div = host->bus_hz / slot->clock; - if (host->bus_hz % slot->clock && host->bus_hz > slot->clock) + if (!clock) { + mci_writel(host, CLKENA, 0); + mci_send_cmd(slot, + SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0); + } else if (clock != host->current_speed || force_clkinit) { + div = host->bus_hz / clock; + if (host->bus_hz % clock && host->bus_hz > clock) /* * move the + 1 after the divide to prevent * over-clocking the card. */ div += 1; - div = (host->bus_hz != slot->clock) ? DIV_ROUND_UP(div, 2) : 0; + div = (host->bus_hz != clock) ? DIV_ROUND_UP(div, 2) : 0; - dev_info(&slot->mmc->class_dev, - "Bus speed (slot %d) = %dHz (slot req %dHz, actual %dHZ" - " div = %d)\n", slot->id, host->bus_hz, slot->clock, - div ? ((host->bus_hz / div) >> 1) : host->bus_hz, div); + if ((clock << div) != slot->__clk_old || force_clkinit) + dev_info(&slot->mmc->class_dev, + "Bus speed (slot %d) = %dHz (slot req %dHz, actual %dHZ div = %d)\n", + slot->id, host->bus_hz, clock, + div ? ((host->bus_hz / div) >> 1) : + host->bus_hz, div); /* disable clock */ mci_writel(host, CLKENA, 0); @@ -676,9 +830,12 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit) mci_send_cmd(slot, SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0); - host->current_speed = slot->clock; + /* keep the clock with reflecting clock dividor */ + slot->__clk_old = clock << div; } + host->current_speed = clock; + /* Set the current slot bus width */ mci_writel(host, CTYPE, (slot->ctype << slot->id)); } @@ -700,7 +857,9 @@ static void __dw_mci_start_request(struct dw_mci *host, host->pending_events = 0; host->completed_events = 0; + host->cmd_status = 0; host->data_status = 0; + host->dir_status = 0; data = cmd->data; if (data) { @@ -724,6 +883,8 @@ static void __dw_mci_start_request(struct dw_mci *host, if (mrq->stop) host->stop_cmdr = dw_mci_prepare_command(slot->mmc, mrq->stop); + else + host->stop_cmdr = dw_mci_prep_stop_abort(host, cmd); } static void dw_mci_start_request(struct dw_mci *host, @@ -806,14 +967,13 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) regs &= ~((0x1 << slot->id) << 16); mci_writel(slot->host, UHS_REG, regs); + slot->host->timing = ios->timing; - if (ios->clock) { - /* - * Use mirror of ios->clock to prevent race with mmc - * core ios update when finding the minimum. - */ - slot->clock = ios->clock; - } + /* + * Use mirror of ios->clock to prevent race with mmc + * core ios update when finding the minimum. + */ + slot->clock = ios->clock; if (drv_data && drv_data->set_ios) drv_data->set_ios(slot->host, ios); @@ -939,6 +1099,38 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb) } } +static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode) +{ + struct dw_mci_slot *slot = mmc_priv(mmc); + struct dw_mci *host = slot->host; + const struct dw_mci_drv_data *drv_data = host->drv_data; + struct dw_mci_tuning_data tuning_data; + int err = -ENOSYS; + + if (opcode == MMC_SEND_TUNING_BLOCK_HS200) { + if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) { + tuning_data.blk_pattern = tuning_blk_pattern_8bit; + tuning_data.blksz = sizeof(tuning_blk_pattern_8bit); + } else if (mmc->ios.bus_width == MMC_BUS_WIDTH_4) { + tuning_data.blk_pattern = tuning_blk_pattern_4bit; + tuning_data.blksz = sizeof(tuning_blk_pattern_4bit); + } else { + return -EINVAL; + } + } else if (opcode == MMC_SEND_TUNING_BLOCK) { + tuning_data.blk_pattern = tuning_blk_pattern_4bit; + tuning_data.blksz = sizeof(tuning_blk_pattern_4bit); + } else { + dev_err(host->dev, + "Undefined command(%d) for tuning\n", opcode); + return -EINVAL; + } + + if (drv_data && drv_data->execute_tuning) + err = drv_data->execute_tuning(slot, opcode, &tuning_data); + return err; +} + static const struct mmc_host_ops dw_mci_ops = { .request = dw_mci_request, .pre_req = dw_mci_pre_req, @@ -947,6 +1139,7 @@ static const struct mmc_host_ops dw_mci_ops = { .get_ro = dw_mci_get_ro, .get_cd = dw_mci_get_cd, .enable_sdio_irq = dw_mci_enable_sdio_irq, + .execute_tuning = dw_mci_execute_tuning, }; static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) @@ -978,7 +1171,7 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) spin_lock(&host->lock); } -static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd) +static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd) { u32 status = host->cmd_status; @@ -1012,12 +1205,52 @@ static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd /* newer ip versions need a delay between retries */ if (host->quirks & DW_MCI_QUIRK_RETRY_DELAY) mdelay(20); + } - if (cmd->data) { - dw_mci_stop_dma(host); - host->data = NULL; + return cmd->error; +} + +static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data) +{ + u32 status = host->data_status; + + if (status & DW_MCI_DATA_ERROR_FLAGS) { + if (status & SDMMC_INT_DRTO) { + data->error = -ETIMEDOUT; + } else if (status & SDMMC_INT_DCRC) { + data->error = -EILSEQ; + } else if (status & SDMMC_INT_EBE) { + if (host->dir_status == + DW_MCI_SEND_STATUS) { + /* + * No data CRC status was returned. + * The number of bytes transferred + * will be exaggerated in PIO mode. + */ + data->bytes_xfered = 0; + data->error = -ETIMEDOUT; + } else if (host->dir_status == + DW_MCI_RECV_STATUS) { + data->error = -EIO; + } + } else { + /* SDMMC_INT_SBE is included */ + data->error = -EIO; } + + dev_err(host->dev, "data error, status 0x%08x\n", status); + + /* + * After an error, there may be data lingering + * in the FIFO + */ + dw_mci_fifo_reset(host); + } else { + data->bytes_xfered = data->blocks * data->blksz; + data->error = 0; } + + return data->error; } static void dw_mci_tasklet_func(unsigned long priv) @@ -1025,14 +1258,16 @@ static void dw_mci_tasklet_func(unsigned long priv) struct dw_mci *host = (struct dw_mci *)priv; struct mmc_data *data; struct mmc_command *cmd; + struct mmc_request *mrq; enum dw_mci_state state; enum dw_mci_state prev_state; - u32 status, ctrl; + unsigned int err; spin_lock(&host->lock); state = host->state; data = host->data; + mrq = host->mrq; do { prev_state = state; @@ -1049,16 +1284,23 @@ static void dw_mci_tasklet_func(unsigned long priv) cmd = host->cmd; host->cmd = NULL; set_bit(EVENT_CMD_COMPLETE, &host->completed_events); - dw_mci_command_complete(host, cmd); - if (cmd == host->mrq->sbc && !cmd->error) { + err = dw_mci_command_complete(host, cmd); + if (cmd == mrq->sbc && !err) { prev_state = state = STATE_SENDING_CMD; __dw_mci_start_request(host, host->cur_slot, - host->mrq->cmd); + mrq->cmd); goto unlock; } - if (!host->mrq->data || cmd->error) { - dw_mci_request_end(host, host->mrq); + if (cmd->data && err) { + dw_mci_stop_dma(host); + send_stop_abort(host, data); + state = STATE_SENDING_STOP; + break; + } + + if (!cmd->data || err) { + dw_mci_request_end(host, mrq); goto unlock; } @@ -1069,8 +1311,7 @@ static void dw_mci_tasklet_func(unsigned long priv) if (test_and_clear_bit(EVENT_DATA_ERROR, &host->pending_events)) { dw_mci_stop_dma(host); - if (data->stop) - send_stop_cmd(host, data); + send_stop_abort(host, data); state = STATE_DATA_ERROR; break; } @@ -1090,60 +1331,27 @@ static void dw_mci_tasklet_func(unsigned long priv) host->data = NULL; set_bit(EVENT_DATA_COMPLETE, &host->completed_events); - status = host->data_status; - - if (status & DW_MCI_DATA_ERROR_FLAGS) { - if (status & SDMMC_INT_DRTO) { - data->error = -ETIMEDOUT; - } else if (status & SDMMC_INT_DCRC) { - data->error = -EILSEQ; - } else if (status & SDMMC_INT_EBE && - host->dir_status == - DW_MCI_SEND_STATUS) { - /* - * No data CRC status was returned. - * The number of bytes transferred will - * be exaggerated in PIO mode. - */ - data->bytes_xfered = 0; - data->error = -ETIMEDOUT; - } else { - dev_err(host->dev, - "data FIFO error " - "(status=%08x)\n", - status); - data->error = -EIO; - } - /* - * After an error, there may be data lingering - * in the FIFO, so reset it - doing so - * generates a block interrupt, hence setting - * the scatter-gather pointer to NULL. - */ - sg_miter_stop(&host->sg_miter); - host->sg = NULL; - ctrl = mci_readl(host, CTRL); - ctrl |= SDMMC_CTRL_FIFO_RESET; - mci_writel(host, CTRL, ctrl); - } else { - data->bytes_xfered = data->blocks * data->blksz; - data->error = 0; - } + err = dw_mci_data_complete(host, data); - if (!data->stop) { - dw_mci_request_end(host, host->mrq); - goto unlock; - } + if (!err) { + if (!data->stop || mrq->sbc) { + if (mrq->sbc) + data->stop->error = 0; + dw_mci_request_end(host, mrq); + goto unlock; + } - if (host->mrq->sbc && !data->error) { - data->stop->error = 0; - dw_mci_request_end(host, host->mrq); - goto unlock; + /* stop command for open-ended transfer*/ + if (data->stop) + send_stop_abort(host, data); } + /* + * If err has non-zero, + * stop-abort command has been already issued. + */ prev_state = state = STATE_SENDING_STOP; - if (!data->error) - send_stop_cmd(host, data); + /* fall through */ case STATE_SENDING_STOP: @@ -1151,9 +1359,19 @@ static void dw_mci_tasklet_func(unsigned long priv) &host->pending_events)) break; + /* CMD error in data command */ + if (mrq->cmd->error && mrq->data) + dw_mci_fifo_reset(host); + host->cmd = NULL; - dw_mci_command_complete(host, host->mrq->stop); - dw_mci_request_end(host, host->mrq); + host->data = NULL; + + if (mrq->stop) + dw_mci_command_complete(host, mrq->stop); + else + host->cmd_status = 0; + + dw_mci_request_end(host, mrq); goto unlock; case STATE_DATA_ERROR: @@ -1697,7 +1915,6 @@ static void dw_mci_work_routine_card(struct work_struct *work) struct mmc_host *mmc = slot->mmc; struct mmc_request *mrq; int present; - u32 ctrl; present = dw_mci_get_cd(mmc); while (present != slot->last_detect_state) { @@ -1736,11 +1953,10 @@ static void dw_mci_work_routine_card(struct work_struct *work) case STATE_DATA_ERROR: if (mrq->data->error == -EINPROGRESS) mrq->data->error = -ENOMEDIUM; - if (!mrq->stop) - break; /* fall through */ case STATE_SENDING_STOP: - mrq->stop->error = -ENOMEDIUM; + if (mrq->stop) + mrq->stop->error = -ENOMEDIUM; break; } @@ -1763,23 +1979,10 @@ static void dw_mci_work_routine_card(struct work_struct *work) if (present == 0) { clear_bit(DW_MMC_CARD_PRESENT, &slot->flags); - /* - * Clear down the FIFO - doing so generates a - * block interrupt, hence setting the - * scatter-gather pointer to NULL. - */ - sg_miter_stop(&host->sg_miter); - host->sg = NULL; - - ctrl = mci_readl(host, CTRL); - ctrl |= SDMMC_CTRL_FIFO_RESET; - mci_writel(host, CTRL, ctrl); - + /* Clear down the FIFO */ + dw_mci_fifo_reset(host); #ifdef CONFIG_MMC_DW_IDMAC - ctrl = mci_readl(host, BMOD); - /* Software reset of DMA */ - ctrl |= SDMMC_IDMAC_SWRESET; - mci_writel(host, BMOD, ctrl); + dw_mci_idmac_reset(host); #endif } @@ -1901,6 +2104,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) struct dw_mci_slot *slot; const struct dw_mci_drv_data *drv_data = host->drv_data; int ctrl_id, ret; + u32 freq[2]; u8 bus_width; mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev); @@ -1916,8 +2120,14 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) slot->quirks = dw_mci_of_get_slot_quirks(host->dev, slot->id); mmc->ops = &dw_mci_ops; - mmc->f_min = DIV_ROUND_UP(host->bus_hz, 510); - mmc->f_max = host->bus_hz; + if (of_property_read_u32_array(host->dev->of_node, + "clock-freq-min-max", freq, 2)) { + mmc->f_min = DW_MCI_FREQ_MIN; + mmc->f_max = DW_MCI_FREQ_MAX; + } else { + mmc->f_min = freq[0]; + mmc->f_max = freq[1]; + } if (host->pdata->get_ocr) mmc->ocr_avail = host->pdata->get_ocr(id); @@ -1964,9 +2174,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) mmc->caps |= MMC_CAP_4_BIT_DATA; } - if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED) - mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED; - if (host->pdata->blk_settings) { mmc->max_segs = host->pdata->blk_settings->max_segs; mmc->max_blk_size = host->pdata->blk_settings->max_blk_size; @@ -2008,12 +2215,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) /* Card initially undetected */ slot->last_detect_state = 0; - /* - * Card may have been plugged in prior to boot so we - * need to run the detect tasklet - */ - queue_work(host->card_workqueue, &host->card_work); - return 0; err_setup_bus: @@ -2074,36 +2275,57 @@ no_dma: return; } -static bool mci_wait_reset(struct device *dev, struct dw_mci *host) +static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset) { unsigned long timeout = jiffies + msecs_to_jiffies(500); - unsigned int ctrl; + u32 ctrl; - mci_writel(host, CTRL, (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | - SDMMC_CTRL_DMA_RESET)); + ctrl = mci_readl(host, CTRL); + ctrl |= reset; + mci_writel(host, CTRL, ctrl); /* wait till resets clear */ do { ctrl = mci_readl(host, CTRL); - if (!(ctrl & (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | - SDMMC_CTRL_DMA_RESET))) + if (!(ctrl & reset)) return true; } while (time_before(jiffies, timeout)); - dev_err(dev, "Timeout resetting block (ctrl %#x)\n", ctrl); + dev_err(host->dev, + "Timeout resetting block (ctrl reset %#x)\n", + ctrl & reset); return false; } +static inline bool dw_mci_fifo_reset(struct dw_mci *host) +{ + /* + * Reseting generates a block interrupt, hence setting + * the scatter-gather pointer to NULL. + */ + if (host->sg) { + sg_miter_stop(&host->sg_miter); + host->sg = NULL; + } + + return dw_mci_ctrl_reset(host, SDMMC_CTRL_FIFO_RESET); +} + +static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host) +{ + return dw_mci_ctrl_reset(host, + SDMMC_CTRL_FIFO_RESET | + SDMMC_CTRL_RESET | + SDMMC_CTRL_DMA_RESET); +} + #ifdef CONFIG_OF static struct dw_mci_of_quirks { char *quirk; int id; } of_quirks[] = { { - .quirk = "supports-highspeed", - .id = DW_MCI_QUIRK_HIGHSPEED, - }, { .quirk = "broken-cd", .id = DW_MCI_QUIRK_BROKEN_CARD_DETECTION, }, @@ -2158,6 +2380,15 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) if (of_find_property(np, "enable-sdio-wakeup", NULL)) pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; + if (of_find_property(np, "supports-highspeed", NULL)) + pdata->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED; + + if (of_find_property(np, "caps2-mmc-hs200-1_8v", NULL)) + pdata->caps2 |= MMC_CAP2_HS200_1_8V_SDR; + + if (of_find_property(np, "caps2-mmc-hs200-1_2v", NULL)) + pdata->caps2 |= MMC_CAP2_HS200_1_2V_SDR; + return pdata; } @@ -2221,6 +2452,15 @@ int dw_mci_probe(struct dw_mci *host) host->bus_hz = clk_get_rate(host->ciu_clk); } + if (drv_data && drv_data->init) { + ret = drv_data->init(host); + if (ret) { + dev_err(host->dev, + "implementation specific init failed\n"); + goto err_clk_ciu; + } + } + if (drv_data && drv_data->setup_clock) { ret = drv_data->setup_clock(host); if (ret) { @@ -2287,7 +2527,7 @@ int dw_mci_probe(struct dw_mci *host) } /* Reset all blocks */ - if (!mci_wait_reset(host->dev, host)) + if (!dw_mci_ctrl_all_reset(host)) return -ENODEV; host->dma_ops = host->pdata->dma_ops; @@ -2317,8 +2557,8 @@ int dw_mci_probe(struct dw_mci *host) fifo_size = host->pdata->fifo_depth; } host->fifo_depth = fifo_size; - host->fifoth_val = ((0x2 << 28) | ((fifo_size/2 - 1) << 16) | - ((fifo_size/2) << 0)); + host->fifoth_val = + SDMMC_SET_FIFOTH(0x2, fifo_size / 2 - 1, fifo_size / 2); mci_writel(host, FIFOTH, host->fifoth_val); /* disable clock to CIU */ @@ -2456,23 +2696,6 @@ EXPORT_SYMBOL(dw_mci_remove); */ int dw_mci_suspend(struct dw_mci *host) { - int i, ret = 0; - - for (i = 0; i < host->num_slots; i++) { - struct dw_mci_slot *slot = host->slot[i]; - if (!slot) - continue; - ret = mmc_suspend_host(slot->mmc); - if (ret < 0) { - while (--i >= 0) { - slot = host->slot[i]; - if (slot) - mmc_resume_host(host->slot[i]->mmc); - } - return ret; - } - } - if (host->vmmc) regulator_disable(host->vmmc); @@ -2493,7 +2716,7 @@ int dw_mci_resume(struct dw_mci *host) } } - if (!mci_wait_reset(host->dev, host)) { + if (!dw_mci_ctrl_all_reset(host)) { ret = -ENODEV; return ret; } @@ -2501,8 +2724,15 @@ int dw_mci_resume(struct dw_mci *host) if (host->use_dma && host->dma_ops->init) host->dma_ops->init(host); - /* Restore the old value at FIFOTH register */ + /* + * Restore the initial value at FIFOTH register + * And Invalidate the prev_blksz with zero + */ mci_writel(host, FIFOTH, host->fifoth_val); + host->prev_blksz = 0; + + /* Put in max timeout */ + mci_writel(host, TMOUT, 0xFFFFFFFF); mci_writel(host, RINTSTS, 0xFFFFFFFF); mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | @@ -2518,10 +2748,6 @@ int dw_mci_resume(struct dw_mci *host) dw_mci_set_ios(slot->mmc, &slot->mmc->ios); dw_mci_setup_bus(slot, true); } - - ret = mmc_resume_host(host->slot[i]->mmc); - if (ret < 0) - return ret; } return 0; } diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h index 81b29941c5b9..6bf24ab917e6 100644 --- a/drivers/mmc/host/dw_mmc.h +++ b/drivers/mmc/host/dw_mmc.h @@ -53,6 +53,7 @@ #define SDMMC_IDINTEN 0x090 #define SDMMC_DSCADDR 0x094 #define SDMMC_BUFADDR 0x098 +#define SDMMC_CDTHRCTL 0x100 #define SDMMC_DATA(x) (x) /* @@ -128,6 +129,10 @@ #define SDMMC_CMD_INDX(n) ((n) & 0x1F) /* Status register defines */ #define SDMMC_GET_FCNT(x) (((x)>>17) & 0x1FFF) +/* FIFOTH register defines */ +#define SDMMC_SET_FIFOTH(m, r, t) (((m) & 0x7) << 28 | \ + ((r) & 0xFFF) << 16 | \ + ((t) & 0xFFF)) /* Internal DMAC interrupt defines */ #define SDMMC_IDMAC_INT_AI BIT(9) #define SDMMC_IDMAC_INT_NI BIT(8) @@ -142,6 +147,8 @@ #define SDMMC_IDMAC_SWRESET BIT(0) /* Version ID register define */ #define SDMMC_GET_VERID(x) ((x) & 0xFFFF) +/* Card read threshold */ +#define SDMMC_SET_RD_THLD(v, x) (((v) & 0x1FFF) << 16 | (x)) /* Register access macros */ #define mci_readl(dev, reg) \ @@ -184,6 +191,52 @@ extern int dw_mci_resume(struct dw_mci *host); #endif /** + * struct dw_mci_slot - MMC slot state + * @mmc: The mmc_host representing this slot. + * @host: The MMC controller this slot is using. + * @quirks: Slot-level quirks (DW_MCI_SLOT_QUIRK_XXX) + * @wp_gpio: If gpio_is_valid() we'll use this to read write protect. + * @ctype: Card type for this slot. + * @mrq: mmc_request currently being processed or waiting to be + * processed, or NULL when the slot is idle. + * @queue_node: List node for placing this node in the @queue list of + * &struct dw_mci. + * @clock: Clock rate configured by set_ios(). Protected by host->lock. + * @__clk_old: The last updated clock with reflecting clock divider. + * Keeping track of this helps us to avoid spamming the console + * with CONFIG_MMC_CLKGATE. + * @flags: Random state bits associated with the slot. + * @id: Number of this slot. + * @last_detect_state: Most recently observed card detect state. + */ +struct dw_mci_slot { + struct mmc_host *mmc; + struct dw_mci *host; + + int quirks; + int wp_gpio; + + u32 ctype; + + struct mmc_request *mrq; + struct list_head queue_node; + + unsigned int clock; + unsigned int __clk_old; + + unsigned long flags; +#define DW_MMC_CARD_PRESENT 0 +#define DW_MMC_CARD_NEED_INIT 1 + int id; + int last_detect_state; +}; + +struct dw_mci_tuning_data { + const u8 *blk_pattern; + unsigned int blksz; +}; + +/** * dw_mci driver data - dw-mshc implementation specific driver data. * @caps: mmc subsystem specified capabilities of the controller(s). * @init: early implementation specific initialization. @@ -203,5 +256,7 @@ struct dw_mci_drv_data { void (*prepare_command)(struct dw_mci *host, u32 *cmdr); void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios); int (*parse_dt)(struct dw_mci *host); + int (*execute_tuning)(struct dw_mci_slot *slot, u32 opcode, + struct dw_mci_tuning_data *tuning_data); }; #endif /* _DW_MMC_H_ */ diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c index 66516339e3a0..de2139cf3444 100644 --- a/drivers/mmc/host/jz4740_mmc.c +++ b/drivers/mmc/host/jz4740_mmc.c @@ -880,8 +880,6 @@ static int jz4740_mmc_suspend(struct device *dev) { struct jz4740_mmc_host *host = dev_get_drvdata(dev); - mmc_suspend_host(host->mmc); - jz_gpio_bulk_suspend(jz4740_mmc_pins, jz4740_mmc_num_pins(host)); return 0; @@ -893,8 +891,6 @@ static int jz4740_mmc_resume(struct device *dev) jz_gpio_bulk_resume(jz4740_mmc_pins, jz4740_mmc_num_pins(host)); - mmc_resume_host(host->mmc); - return 0; } diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index d135c76c4855..f32057972dd7 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1730,37 +1730,28 @@ static int mmci_suspend(struct device *dev) { struct amba_device *adev = to_amba_device(dev); struct mmc_host *mmc = amba_get_drvdata(adev); - int ret = 0; if (mmc) { struct mmci_host *host = mmc_priv(mmc); - - ret = mmc_suspend_host(mmc); - if (ret == 0) { - pm_runtime_get_sync(dev); - writel(0, host->base + MMCIMASK0); - } + pm_runtime_get_sync(dev); + writel(0, host->base + MMCIMASK0); } - return ret; + return 0; } static int mmci_resume(struct device *dev) { struct amba_device *adev = to_amba_device(dev); struct mmc_host *mmc = amba_get_drvdata(adev); - int ret = 0; if (mmc) { struct mmci_host *host = mmc_priv(mmc); - writel(MCI_IRQENABLE, host->base + MMCIMASK0); pm_runtime_put(dev); - - ret = mmc_resume_host(mmc); } - return ret; + return 0; } #endif diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c index b900de4e7e94..9405ecdaf6cf 100644 --- a/drivers/mmc/host/msm_sdcc.c +++ b/drivers/mmc/host/msm_sdcc.c @@ -1416,28 +1416,10 @@ ioremap_free: } #ifdef CONFIG_PM -#ifdef CONFIG_MMC_MSM7X00A_RESUME_IN_WQ -static void -do_resume_work(struct work_struct *work) -{ - struct msmsdcc_host *host = - container_of(work, struct msmsdcc_host, resume_task); - struct mmc_host *mmc = host->mmc; - - if (mmc) { - mmc_resume_host(mmc); - if (host->stat_irq) - enable_irq(host->stat_irq); - } -} -#endif - - static int msmsdcc_suspend(struct platform_device *dev, pm_message_t state) { struct mmc_host *mmc = mmc_get_drvdata(dev); - int rc = 0; if (mmc) { struct msmsdcc_host *host = mmc_priv(mmc); @@ -1445,14 +1427,11 @@ msmsdcc_suspend(struct platform_device *dev, pm_message_t state) if (host->stat_irq) disable_irq(host->stat_irq); - if (mmc->card && mmc->card->type != MMC_TYPE_SDIO) - rc = mmc_suspend_host(mmc); - if (!rc) - msmsdcc_writel(host, 0, MMCIMASK0); + msmsdcc_writel(host, 0, MMCIMASK0); if (host->clks_on) msmsdcc_disable_clocks(host, 0); } - return rc; + return 0; } static int @@ -1467,8 +1446,6 @@ msmsdcc_resume(struct platform_device *dev) msmsdcc_writel(host, host->saved_irq0mask, MMCIMASK0); - if (mmc->card && mmc->card->type != MMC_TYPE_SDIO) - mmc_resume_host(mmc); if (host->stat_irq) enable_irq(host->stat_irq); #if BUSCLK_PWRSAVE diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c index deecee08c288..45aa2206741d 100644 --- a/drivers/mmc/host/mvsdio.c +++ b/drivers/mmc/host/mvsdio.c @@ -775,9 +775,9 @@ static int mvsd_probe(struct platform_device *pdev) spin_lock_init(&host->lock); - host->base = devm_request_and_ioremap(&pdev->dev, r); - if (!host->base) { - ret = -ENOMEM; + host->base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(host->base)) { + ret = PTR_ERR(host->base); goto out; } @@ -838,33 +838,6 @@ static int mvsd_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int mvsd_suspend(struct platform_device *dev, pm_message_t state) -{ - struct mmc_host *mmc = platform_get_drvdata(dev); - int ret = 0; - - if (mmc) - ret = mmc_suspend_host(mmc); - - return ret; -} - -static int mvsd_resume(struct platform_device *dev) -{ - struct mmc_host *mmc = platform_get_drvdata(dev); - int ret = 0; - - if (mmc) - ret = mmc_resume_host(mmc); - - return ret; -} -#else -#define mvsd_suspend NULL -#define mvsd_resume NULL -#endif - static const struct of_device_id mvsdio_dt_ids[] = { { .compatible = "marvell,orion-sdio" }, { /* sentinel */ } @@ -874,8 +847,6 @@ MODULE_DEVICE_TABLE(of, mvsdio_dt_ids); static struct platform_driver mvsd_driver = { .probe = mvsd_probe, .remove = mvsd_remove, - .suspend = mvsd_suspend, - .resume = mvsd_resume, .driver = { .name = DRIVER_NAME, .of_match_table = mvsdio_dt_ids, diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index c174c6a0d224..f7199c83f5cf 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -1250,28 +1250,20 @@ static int mxcmci_suspend(struct device *dev) { struct mmc_host *mmc = dev_get_drvdata(dev); struct mxcmci_host *host = mmc_priv(mmc); - int ret = 0; - if (mmc) - ret = mmc_suspend_host(mmc); clk_disable_unprepare(host->clk_per); clk_disable_unprepare(host->clk_ipg); - - return ret; + return 0; } static int mxcmci_resume(struct device *dev) { struct mmc_host *mmc = dev_get_drvdata(dev); struct mxcmci_host *host = mmc_priv(mmc); - int ret = 0; clk_prepare_enable(host->clk_per); clk_prepare_enable(host->clk_ipg); - if (mmc) - ret = mmc_resume_host(mmc); - - return ret; + return 0; } static const struct dev_pm_ops mxcmci_pm_ops = { diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index e1fa3ef735e0..50fc9df791b2 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -724,13 +724,9 @@ static int mxs_mmc_suspend(struct device *dev) struct mmc_host *mmc = dev_get_drvdata(dev); struct mxs_mmc_host *host = mmc_priv(mmc); struct mxs_ssp *ssp = &host->ssp; - int ret = 0; - - ret = mmc_suspend_host(mmc); clk_disable_unprepare(ssp->clk); - - return ret; + return 0; } static int mxs_mmc_resume(struct device *dev) @@ -738,13 +734,9 @@ static int mxs_mmc_resume(struct device *dev) struct mmc_host *mmc = dev_get_drvdata(dev); struct mxs_mmc_host *host = mmc_priv(mmc); struct mxs_ssp *ssp = &host->ssp; - int ret = 0; clk_prepare_enable(ssp->clk); - - ret = mmc_resume_host(mmc); - - return ret; + return 0; } static const struct dev_pm_ops mxs_mmc_pm_ops = { diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index b94f38ec2a83..0b10a9030f4e 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -128,7 +128,6 @@ struct mmc_omap_slot { struct mmc_omap_host { int initialized; - int suspended; struct mmc_request * mrq; struct mmc_command * cmd; struct mmc_data * data; @@ -1513,61 +1512,9 @@ static int mmc_omap_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int mmc_omap_suspend(struct platform_device *pdev, pm_message_t mesg) -{ - int i, ret = 0; - struct mmc_omap_host *host = platform_get_drvdata(pdev); - - if (host == NULL || host->suspended) - return 0; - - for (i = 0; i < host->nr_slots; i++) { - struct mmc_omap_slot *slot; - - slot = host->slots[i]; - ret = mmc_suspend_host(slot->mmc); - if (ret < 0) { - while (--i >= 0) { - slot = host->slots[i]; - mmc_resume_host(slot->mmc); - } - return ret; - } - } - host->suspended = 1; - return 0; -} - -static int mmc_omap_resume(struct platform_device *pdev) -{ - int i, ret = 0; - struct mmc_omap_host *host = platform_get_drvdata(pdev); - - if (host == NULL || !host->suspended) - return 0; - - for (i = 0; i < host->nr_slots; i++) { - struct mmc_omap_slot *slot; - slot = host->slots[i]; - ret = mmc_resume_host(slot->mmc); - if (ret < 0) - return ret; - - host->suspended = 0; - } - return 0; -} -#else -#define mmc_omap_suspend NULL -#define mmc_omap_resume NULL -#endif - static struct platform_driver mmc_omap_driver = { .probe = mmc_omap_probe, .remove = mmc_omap_remove, - .suspend = mmc_omap_suspend, - .resume = mmc_omap_resume, .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 6ac63df645c4..dbd32ad3b749 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -75,6 +75,7 @@ #define ICE 0x1 #define ICS 0x2 #define CEN (1 << 2) +#define CLKD_MAX 0x3FF /* max clock divisor: 1023 */ #define CLKD_MASK 0x0000FFC0 #define CLKD_SHIFT 6 #define DTO_MASK 0x000F0000 @@ -119,7 +120,8 @@ BRR_EN | BWR_EN | TC_EN | CC_EN) #define MMC_AUTOSUSPEND_DELAY 100 -#define MMC_TIMEOUT_MS 20 +#define MMC_TIMEOUT_MS 20 /* 20 mSec */ +#define MMC_TIMEOUT_US 20000 /* 20000 micro Sec */ #define OMAP_MMC_MIN_CLOCK 400000 #define OMAP_MMC_MAX_CLOCK 52000000 #define DRIVER_NAME "omap_hsmmc" @@ -171,6 +173,10 @@ struct omap_hsmmc_host { unsigned char bus_mode; unsigned char power_mode; int suspended; + u32 con; + u32 hctl; + u32 sysctl; + u32 capa; int irq; int use_dma, dma_ch; struct dma_chan *tx_chan; @@ -183,7 +189,6 @@ struct omap_hsmmc_host { int use_reg; int req_in_progress; struct omap_hsmmc_next next_data; - struct omap_mmc_platform_data *pdata; }; @@ -493,8 +498,8 @@ static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios) if (ios->clock) { dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock); - if (dsor > 250) - dsor = 250; + if (dsor > CLKD_MAX) + dsor = CLKD_MAX; } return dsor; @@ -597,25 +602,20 @@ static void omap_hsmmc_set_bus_mode(struct omap_hsmmc_host *host) static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host) { struct mmc_ios *ios = &host->mmc->ios; - struct omap_mmc_platform_data *pdata = host->pdata; - int context_loss = 0; u32 hctl, capa; unsigned long timeout; - if (pdata->get_context_loss_count) { - context_loss = pdata->get_context_loss_count(host->dev); - if (context_loss < 0) - return 1; - } - - dev_dbg(mmc_dev(host->mmc), "context was %slost\n", - context_loss == host->context_loss ? "not " : ""); - if (host->context_loss == context_loss) - return 1; - if (!OMAP_HSMMC_READ(host->base, SYSSTATUS) & RESETDONE) return 1; + if (host->con == OMAP_HSMMC_READ(host->base, CON) && + host->hctl == OMAP_HSMMC_READ(host->base, HCTL) && + host->sysctl == OMAP_HSMMC_READ(host->base, SYSCTL) && + host->capa == OMAP_HSMMC_READ(host->base, CAPA)) + return 0; + + host->context_loss++; + if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) { if (host->power_mode != MMC_POWER_OFF && (1 << ios->vdd) <= MMC_VDD_23_24) @@ -655,9 +655,8 @@ static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host) omap_hsmmc_set_bus_mode(host); out: - host->context_loss = context_loss; - - dev_dbg(mmc_dev(host->mmc), "context is restored\n"); + dev_dbg(mmc_dev(host->mmc), "context is restored: restore count %d\n", + host->context_loss); return 0; } @@ -666,15 +665,10 @@ out: */ static void omap_hsmmc_context_save(struct omap_hsmmc_host *host) { - struct omap_mmc_platform_data *pdata = host->pdata; - int context_loss; - - if (pdata->get_context_loss_count) { - context_loss = pdata->get_context_loss_count(host->dev); - if (context_loss < 0) - return; - host->context_loss = context_loss; - } + host->con = OMAP_HSMMC_READ(host->base, CON); + host->hctl = OMAP_HSMMC_READ(host->base, HCTL); + host->sysctl = OMAP_HSMMC_READ(host->base, SYSCTL); + host->capa = OMAP_HSMMC_READ(host->base, CAPA); } #else @@ -975,8 +969,7 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host, unsigned long bit) { unsigned long i = 0; - unsigned long limit = (loops_per_jiffy * - msecs_to_jiffies(MMC_TIMEOUT_MS)); + unsigned long limit = MMC_TIMEOUT_US; OMAP_HSMMC_WRITE(host->base, SYSCTL, OMAP_HSMMC_READ(host->base, SYSCTL) | bit); @@ -988,13 +981,13 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host, if (mmc_slot(host).features & HSMMC_HAS_UPDATED_RESET) { while ((!(OMAP_HSMMC_READ(host->base, SYSCTL) & bit)) && (i++ < limit)) - cpu_relax(); + udelay(1); } i = 0; while ((OMAP_HSMMC_READ(host->base, SYSCTL) & bit) && (i++ < limit)) - cpu_relax(); + udelay(1); if (OMAP_HSMMC_READ(host->base, SYSCTL) & bit) dev_err(mmc_dev(host->mmc), @@ -1178,9 +1171,6 @@ static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id) struct omap_mmc_slot_data *slot = &mmc_slot(host); int carddetect; - if (host->suspended) - return IRQ_HANDLED; - sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch"); if (slot->card_detect) @@ -1635,18 +1625,9 @@ static int omap_hsmmc_regs_show(struct seq_file *s, void *data) { struct mmc_host *mmc = s->private; struct omap_hsmmc_host *host = mmc_priv(mmc); - int context_loss = 0; - - if (host->pdata->get_context_loss_count) - context_loss = host->pdata->get_context_loss_count(host->dev); - seq_printf(s, "mmc%d:\n ctx_loss:\t%d:%d\n\nregs:\n", - mmc->index, host->context_loss, context_loss); - - if (host->suspended) { - seq_printf(s, "host suspended, can't read registers\n"); - return 0; - } + seq_printf(s, "mmc%d:\n ctx_loss:\t%d\n\nregs:\n", + mmc->index, host->context_loss); pm_runtime_get_sync(host->dev); @@ -1838,13 +1819,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev) mmc->ops = &omap_hsmmc_ops; - /* - * If regulator_disable can only put vcc_aux to sleep then there is - * no off state. - */ - if (mmc_slot(host).vcc_aux_disable_is_sleep) - mmc_slot(host).no_off = 1; - mmc->f_min = OMAP_MMC_MIN_CLOCK; if (pdata->max_freq > 0) @@ -1874,7 +1848,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev) omap_hsmmc_context_save(host); /* This can be removed once we support PBIAS with DT */ - if (host->dev->of_node && host->mapbase == 0x4809c000) + if (host->dev->of_node && res->start == 0x4809c000) host->pbias_disable = 1; host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck"); @@ -2119,23 +2093,12 @@ static void omap_hsmmc_complete(struct device *dev) static int omap_hsmmc_suspend(struct device *dev) { - int ret = 0; struct omap_hsmmc_host *host = dev_get_drvdata(dev); if (!host) return 0; - if (host && host->suspended) - return 0; - pm_runtime_get_sync(host->dev); - host->suspended = 1; - ret = mmc_suspend_host(host->mmc); - - if (ret) { - host->suspended = 0; - goto err; - } if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) { omap_hsmmc_disable_irq(host); @@ -2145,23 +2108,19 @@ static int omap_hsmmc_suspend(struct device *dev) if (host->dbclk) clk_disable_unprepare(host->dbclk); -err: + pm_runtime_put_sync(host->dev); - return ret; + return 0; } /* Routine to resume the MMC device */ static int omap_hsmmc_resume(struct device *dev) { - int ret = 0; struct omap_hsmmc_host *host = dev_get_drvdata(dev); if (!host) return 0; - if (host && !host->suspended) - return 0; - pm_runtime_get_sync(host->dev); if (host->dbclk) @@ -2172,16 +2131,9 @@ static int omap_hsmmc_resume(struct device *dev) omap_hsmmc_protect_card(host); - /* Notify the core to resume the host */ - ret = mmc_resume_host(host->mmc); - if (ret == 0) - host->suspended = 0; - pm_runtime_mark_last_busy(host->dev); pm_runtime_put_autosuspend(host->dev); - - return ret; - + return 0; } #else diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 1956a3df7cf3..32fe11323f39 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -880,35 +880,6 @@ static int pxamci_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int pxamci_suspend(struct device *dev) -{ - struct mmc_host *mmc = dev_get_drvdata(dev); - int ret = 0; - - if (mmc) - ret = mmc_suspend_host(mmc); - - return ret; -} - -static int pxamci_resume(struct device *dev) -{ - struct mmc_host *mmc = dev_get_drvdata(dev); - int ret = 0; - - if (mmc) - ret = mmc_resume_host(mmc); - - return ret; -} - -static const struct dev_pm_ops pxamci_pm_ops = { - .suspend = pxamci_suspend, - .resume = pxamci_resume, -}; -#endif - static struct platform_driver pxamci_driver = { .probe = pxamci_probe, .remove = pxamci_remove, @@ -916,9 +887,6 @@ static struct platform_driver pxamci_driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, .of_match_table = of_match_ptr(pxa_mmc_dt_ids), -#ifdef CONFIG_PM - .pm = &pxamci_pm_ops, -#endif }, }; diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 375a880e0c5f..c46feda07d56 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -364,7 +364,7 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq) struct mmc_host *mmc = host->mmc; struct mmc_card *card = mmc->card; struct mmc_data *data = mrq->data; - int uhs = mmc_sd_card_uhs(card); + int uhs = mmc_card_uhs(card); int read = (data->flags & MMC_DATA_READ) ? 1 : 0; u8 cfg2, trans_mode; int err; @@ -1197,37 +1197,6 @@ static const struct mmc_host_ops realtek_pci_sdmmc_ops = { .execute_tuning = sdmmc_execute_tuning, }; -#ifdef CONFIG_PM -static int rtsx_pci_sdmmc_suspend(struct platform_device *pdev, - pm_message_t state) -{ - struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev); - struct mmc_host *mmc = host->mmc; - int err; - - dev_dbg(sdmmc_dev(host), "--> %s\n", __func__); - - err = mmc_suspend_host(mmc); - if (err) - return err; - - return 0; -} - -static int rtsx_pci_sdmmc_resume(struct platform_device *pdev) -{ - struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev); - struct mmc_host *mmc = host->mmc; - - dev_dbg(sdmmc_dev(host), "--> %s\n", __func__); - - return mmc_resume_host(mmc); -} -#else /* CONFIG_PM */ -#define rtsx_pci_sdmmc_suspend NULL -#define rtsx_pci_sdmmc_resume NULL -#endif /* CONFIG_PM */ - static void init_extra_caps(struct realtek_pci_sdmmc *host) { struct mmc_host *mmc = host->mmc; @@ -1367,8 +1336,6 @@ static struct platform_driver rtsx_pci_sdmmc_driver = { .probe = rtsx_pci_sdmmc_drv_probe, .remove = rtsx_pci_sdmmc_drv_remove, .id_table = rtsx_pci_sdmmc_ids, - .suspend = rtsx_pci_sdmmc_suspend, - .resume = rtsx_pci_sdmmc_resume, .driver = { .owner = THIS_MODULE, .name = DRV_NAME_RTSX_PCI_SDMMC, diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index 8d6794cdf899..2fce5ea5eb39 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -1949,39 +1949,10 @@ static struct platform_device_id s3cmci_driver_ids[] = { MODULE_DEVICE_TABLE(platform, s3cmci_driver_ids); - -#ifdef CONFIG_PM - -static int s3cmci_suspend(struct device *dev) -{ - struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev)); - - return mmc_suspend_host(mmc); -} - -static int s3cmci_resume(struct device *dev) -{ - struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev)); - - return mmc_resume_host(mmc); -} - -static const struct dev_pm_ops s3cmci_pm = { - .suspend = s3cmci_suspend, - .resume = s3cmci_resume, -}; - -#define s3cmci_pm_ops &s3cmci_pm -#else /* CONFIG_PM */ -#define s3cmci_pm_ops NULL -#endif /* CONFIG_PM */ - - static struct platform_driver s3cmci_driver = { .driver = { .name = "s3c-sdi", .owner = THIS_MODULE, - .pm = s3cmci_pm_ops, }, .id_table = s3cmci_driver_ids, .probe = s3cmci_probe, diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c index 85472d3fd37f..7a190fe4dff1 100644 --- a/drivers/mmc/host/sdhci-bcm-kona.c +++ b/drivers/mmc/host/sdhci-bcm-kona.c @@ -316,19 +316,7 @@ err_pltfm_free: static int __exit sdhci_bcm_kona_remove(struct platform_device *pdev) { - struct sdhci_host *host = platform_get_drvdata(pdev); - int dead; - u32 scratch; - - dead = 0; - scratch = readl(host->ioaddr + SDHCI_INT_STATUS); - if (scratch == (u32)-1) - dead = 1; - sdhci_remove_host(host, dead); - - sdhci_free_host(host); - - return 0; + return sdhci_pltfm_unregister(pdev); } static struct platform_driver sdhci_bcm_kona_driver = { diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c index 36fa2df04660..f6d8d67c545f 100644 --- a/drivers/mmc/host/sdhci-bcm2835.c +++ b/drivers/mmc/host/sdhci-bcm2835.c @@ -178,13 +178,7 @@ err: static int bcm2835_sdhci_remove(struct platform_device *pdev) { - struct sdhci_host *host = platform_get_drvdata(pdev); - int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff); - - sdhci_remove_host(host, dead); - sdhci_pltfm_free(pdev); - - return 0; + return sdhci_pltfm_unregister(pdev); } static const struct of_device_id bcm2835_sdhci_of_match[] = { diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index abc8cf01e6e3..461a4c3f4ef7 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -34,12 +34,40 @@ /* VENDOR SPEC register */ #define ESDHC_VENDOR_SPEC 0xc0 #define ESDHC_VENDOR_SPEC_SDIO_QUIRK (1 << 1) +#define ESDHC_VENDOR_SPEC_VSELECT (1 << 1) +#define ESDHC_VENDOR_SPEC_FRC_SDCLK_ON (1 << 8) #define ESDHC_WTMK_LVL 0x44 #define ESDHC_MIX_CTRL 0x48 +#define ESDHC_MIX_CTRL_DDREN (1 << 3) #define ESDHC_MIX_CTRL_AC23EN (1 << 7) +#define ESDHC_MIX_CTRL_EXE_TUNE (1 << 22) +#define ESDHC_MIX_CTRL_SMPCLK_SEL (1 << 23) +#define ESDHC_MIX_CTRL_FBCLK_SEL (1 << 25) /* Bits 3 and 6 are not SDHCI standard definitions */ #define ESDHC_MIX_CTRL_SDHCI_MASK 0xb7 +/* dll control register */ +#define ESDHC_DLL_CTRL 0x60 +#define ESDHC_DLL_OVERRIDE_VAL_SHIFT 9 +#define ESDHC_DLL_OVERRIDE_EN_SHIFT 8 + +/* tune control register */ +#define ESDHC_TUNE_CTRL_STATUS 0x68 +#define ESDHC_TUNE_CTRL_STEP 1 +#define ESDHC_TUNE_CTRL_MIN 0 +#define ESDHC_TUNE_CTRL_MAX ((1 << 7) - 1) + +#define ESDHC_TUNING_CTRL 0xcc +#define ESDHC_STD_TUNING_EN (1 << 24) +/* NOTE: the minimum valid tuning start tap for mx6sl is 1 */ +#define ESDHC_TUNING_START_TAP 0x1 + +#define ESDHC_TUNING_BLOCK_PATTERN_LEN 64 + +/* pinctrl state */ +#define ESDHC_PINCTRL_STATE_100MHZ "state_100mhz" +#define ESDHC_PINCTRL_STATE_200MHZ "state_200mhz" + /* * Our interpretation of the SDHCI_HOST_CONTROL register */ @@ -66,21 +94,60 @@ * As a result, the TC flag is not asserted and SW received timeout * exeception. Bit1 of Vendor Spec registor is used to fix it. */ -#define ESDHC_FLAG_MULTIBLK_NO_INT (1 << 1) - -enum imx_esdhc_type { - IMX25_ESDHC, - IMX35_ESDHC, - IMX51_ESDHC, - IMX53_ESDHC, - IMX6Q_USDHC, +#define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1) +/* + * The flag enables the workaround for ESDHC errata ENGcm07207 which + * affects i.MX25 and i.MX35. + */ +#define ESDHC_FLAG_ENGCM07207 BIT(2) +/* + * The flag tells that the ESDHC controller is an USDHC block that is + * integrated on the i.MX6 series. + */ +#define ESDHC_FLAG_USDHC BIT(3) +/* The IP supports manual tuning process */ +#define ESDHC_FLAG_MAN_TUNING BIT(4) +/* The IP supports standard tuning process */ +#define ESDHC_FLAG_STD_TUNING BIT(5) +/* The IP has SDHCI_CAPABILITIES_1 register */ +#define ESDHC_FLAG_HAVE_CAP1 BIT(6) + +struct esdhc_soc_data { + u32 flags; +}; + +static struct esdhc_soc_data esdhc_imx25_data = { + .flags = ESDHC_FLAG_ENGCM07207, +}; + +static struct esdhc_soc_data esdhc_imx35_data = { + .flags = ESDHC_FLAG_ENGCM07207, +}; + +static struct esdhc_soc_data esdhc_imx51_data = { + .flags = 0, +}; + +static struct esdhc_soc_data esdhc_imx53_data = { + .flags = ESDHC_FLAG_MULTIBLK_NO_INT, +}; + +static struct esdhc_soc_data usdhc_imx6q_data = { + .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING, +}; + +static struct esdhc_soc_data usdhc_imx6sl_data = { + .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING + | ESDHC_FLAG_HAVE_CAP1, }; struct pltfm_imx_data { - int flags; u32 scratchpad; - enum imx_esdhc_type devtype; struct pinctrl *pinctrl; + struct pinctrl_state *pins_default; + struct pinctrl_state *pins_100mhz; + struct pinctrl_state *pins_200mhz; + const struct esdhc_soc_data *socdata; struct esdhc_platform_data boarddata; struct clk *clk_ipg; struct clk *clk_ahb; @@ -90,25 +157,20 @@ struct pltfm_imx_data { MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */ WAIT_FOR_INT, /* sent CMD12, waiting for response INT */ } multiblock_status; - + u32 uhs_mode; + u32 is_ddr; }; static struct platform_device_id imx_esdhc_devtype[] = { { .name = "sdhci-esdhc-imx25", - .driver_data = IMX25_ESDHC, + .driver_data = (kernel_ulong_t) &esdhc_imx25_data, }, { .name = "sdhci-esdhc-imx35", - .driver_data = IMX35_ESDHC, + .driver_data = (kernel_ulong_t) &esdhc_imx35_data, }, { .name = "sdhci-esdhc-imx51", - .driver_data = IMX51_ESDHC, - }, { - .name = "sdhci-esdhc-imx53", - .driver_data = IMX53_ESDHC, - }, { - .name = "sdhci-usdhc-imx6q", - .driver_data = IMX6Q_USDHC, + .driver_data = (kernel_ulong_t) &esdhc_imx51_data, }, { /* sentinel */ } @@ -116,38 +178,34 @@ static struct platform_device_id imx_esdhc_devtype[] = { MODULE_DEVICE_TABLE(platform, imx_esdhc_devtype); static const struct of_device_id imx_esdhc_dt_ids[] = { - { .compatible = "fsl,imx25-esdhc", .data = &imx_esdhc_devtype[IMX25_ESDHC], }, - { .compatible = "fsl,imx35-esdhc", .data = &imx_esdhc_devtype[IMX35_ESDHC], }, - { .compatible = "fsl,imx51-esdhc", .data = &imx_esdhc_devtype[IMX51_ESDHC], }, - { .compatible = "fsl,imx53-esdhc", .data = &imx_esdhc_devtype[IMX53_ESDHC], }, - { .compatible = "fsl,imx6q-usdhc", .data = &imx_esdhc_devtype[IMX6Q_USDHC], }, + { .compatible = "fsl,imx25-esdhc", .data = &esdhc_imx25_data, }, + { .compatible = "fsl,imx35-esdhc", .data = &esdhc_imx35_data, }, + { .compatible = "fsl,imx51-esdhc", .data = &esdhc_imx51_data, }, + { .compatible = "fsl,imx53-esdhc", .data = &esdhc_imx53_data, }, + { .compatible = "fsl,imx6sl-usdhc", .data = &usdhc_imx6sl_data, }, + { .compatible = "fsl,imx6q-usdhc", .data = &usdhc_imx6q_data, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_esdhc_dt_ids); static inline int is_imx25_esdhc(struct pltfm_imx_data *data) { - return data->devtype == IMX25_ESDHC; -} - -static inline int is_imx35_esdhc(struct pltfm_imx_data *data) -{ - return data->devtype == IMX35_ESDHC; + return data->socdata == &esdhc_imx25_data; } -static inline int is_imx51_esdhc(struct pltfm_imx_data *data) +static inline int is_imx53_esdhc(struct pltfm_imx_data *data) { - return data->devtype == IMX51_ESDHC; + return data->socdata == &esdhc_imx53_data; } -static inline int is_imx53_esdhc(struct pltfm_imx_data *data) +static inline int is_imx6q_usdhc(struct pltfm_imx_data *data) { - return data->devtype == IMX53_ESDHC; + return data->socdata == &usdhc_imx6q_data; } -static inline int is_imx6q_usdhc(struct pltfm_imx_data *data) +static inline int esdhc_is_usdhc(struct pltfm_imx_data *data) { - return data->devtype == IMX6Q_USDHC; + return !!(data->socdata->flags & ESDHC_FLAG_USDHC); } static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg) @@ -164,7 +222,21 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) struct pltfm_imx_data *imx_data = pltfm_host->priv; u32 val = readl(host->ioaddr + reg); + if (unlikely(reg == SDHCI_PRESENT_STATE)) { + u32 fsl_prss = val; + /* save the least 20 bits */ + val = fsl_prss & 0x000FFFFF; + /* move dat[0-3] bits */ + val |= (fsl_prss & 0x0F000000) >> 4; + /* move cmd line bit */ + val |= (fsl_prss & 0x00800000) << 1; + } + if (unlikely(reg == SDHCI_CAPABILITIES)) { + /* ignore bit[0-15] as it stores cap_1 register val for mx6sl */ + if (imx_data->socdata->flags & ESDHC_FLAG_HAVE_CAP1) + val &= 0xffff0000; + /* In FSL esdhc IC module, only bit20 is used to indicate the * ADMA2 capability of esdhc, but this bit is messed up on * some SOCs (e.g. on MX25, MX35 this bit is set, but they @@ -178,6 +250,25 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) } } + if (unlikely(reg == SDHCI_CAPABILITIES_1)) { + if (esdhc_is_usdhc(imx_data)) { + if (imx_data->socdata->flags & ESDHC_FLAG_HAVE_CAP1) + val = readl(host->ioaddr + SDHCI_CAPABILITIES) & 0xFFFF; + else + /* imx6q/dl does not have cap_1 register, fake one */ + val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104 + | SDHCI_SUPPORT_SDR50 + | SDHCI_USE_SDR50_TUNING; + } + } + + if (unlikely(reg == SDHCI_MAX_CURRENT) && esdhc_is_usdhc(imx_data)) { + val = 0; + val |= 0xFF << SDHCI_MAX_CURRENT_330_SHIFT; + val |= 0xFF << SDHCI_MAX_CURRENT_300_SHIFT; + val |= 0xFF << SDHCI_MAX_CURRENT_180_SHIFT; + } + if (unlikely(reg == SDHCI_INT_STATUS)) { if (val & ESDHC_INT_VENDOR_SPEC_DMA_ERR) { val &= ~ESDHC_INT_VENDOR_SPEC_DMA_ERR; @@ -224,7 +315,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) } } - if (unlikely((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT) + if (unlikely((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT) && (reg == SDHCI_INT_STATUS) && (val & SDHCI_INT_DATA_END))) { u32 v; @@ -256,10 +347,12 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = pltfm_host->priv; + u16 ret = 0; + u32 val; if (unlikely(reg == SDHCI_HOST_VERSION)) { reg ^= 2; - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { /* * The usdhc register returns a wrong host version. * Correct it here. @@ -268,6 +361,30 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg) } } + if (unlikely(reg == SDHCI_HOST_CONTROL2)) { + val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); + if (val & ESDHC_VENDOR_SPEC_VSELECT) + ret |= SDHCI_CTRL_VDD_180; + + if (esdhc_is_usdhc(imx_data)) { + if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) + val = readl(host->ioaddr + ESDHC_MIX_CTRL); + else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) + /* the std tuning bits is in ACMD12_ERR for imx6sl */ + val = readl(host->ioaddr + SDHCI_ACMD12_ERR); + } + + if (val & ESDHC_MIX_CTRL_EXE_TUNE) + ret |= SDHCI_CTRL_EXEC_TUNING; + if (val & ESDHC_MIX_CTRL_SMPCLK_SEL) + ret |= SDHCI_CTRL_TUNED_CLK; + + ret |= (imx_data->uhs_mode & SDHCI_CTRL_UHS_MASK); + ret &= ~SDHCI_CTRL_PRESET_VAL_ENABLE; + + return ret; + } + return readw(host->ioaddr + reg); } @@ -275,10 +392,59 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = pltfm_host->priv; + u32 new_val = 0; switch (reg) { + case SDHCI_CLOCK_CONTROL: + new_val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); + if (val & SDHCI_CLOCK_CARD_EN) + new_val |= ESDHC_VENDOR_SPEC_FRC_SDCLK_ON; + else + new_val &= ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON; + writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC); + return; + case SDHCI_HOST_CONTROL2: + new_val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); + if (val & SDHCI_CTRL_VDD_180) + new_val |= ESDHC_VENDOR_SPEC_VSELECT; + else + new_val &= ~ESDHC_VENDOR_SPEC_VSELECT; + writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC); + imx_data->uhs_mode = val & SDHCI_CTRL_UHS_MASK; + if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) { + new_val = readl(host->ioaddr + ESDHC_MIX_CTRL); + if (val & SDHCI_CTRL_TUNED_CLK) + new_val |= ESDHC_MIX_CTRL_SMPCLK_SEL; + else + new_val &= ~ESDHC_MIX_CTRL_SMPCLK_SEL; + writel(new_val , host->ioaddr + ESDHC_MIX_CTRL); + } else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) { + u32 v = readl(host->ioaddr + SDHCI_ACMD12_ERR); + u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL); + new_val = readl(host->ioaddr + ESDHC_TUNING_CTRL); + if (val & SDHCI_CTRL_EXEC_TUNING) { + new_val |= ESDHC_STD_TUNING_EN | + ESDHC_TUNING_START_TAP; + v |= ESDHC_MIX_CTRL_EXE_TUNE; + m |= ESDHC_MIX_CTRL_FBCLK_SEL; + } else { + new_val &= ~ESDHC_STD_TUNING_EN; + v &= ~ESDHC_MIX_CTRL_EXE_TUNE; + m &= ~ESDHC_MIX_CTRL_FBCLK_SEL; + } + + if (val & SDHCI_CTRL_TUNED_CLK) + v |= ESDHC_MIX_CTRL_SMPCLK_SEL; + else + v &= ~ESDHC_MIX_CTRL_SMPCLK_SEL; + + writel(new_val, host->ioaddr + ESDHC_TUNING_CTRL); + writel(v, host->ioaddr + SDHCI_ACMD12_ERR); + writel(m, host->ioaddr + ESDHC_MIX_CTRL); + } + return; case SDHCI_TRANSFER_MODE: - if ((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT) + if ((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT) && (host->cmd->opcode == SD_IO_RW_EXTENDED) && (host->cmd->data->blocks > 1) && (host->cmd->data->flags & MMC_DATA_READ)) { @@ -288,7 +454,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) writel(v, host->ioaddr + ESDHC_VENDOR_SPEC); } - if (is_imx6q_usdhc(imx_data)) { + if (esdhc_is_usdhc(imx_data)) { u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL); /* Swap AC23 bit */ if (val & SDHCI_TRNS_AUTO_CMD23) { @@ -310,10 +476,10 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) val |= SDHCI_CMD_ABORTCMD; if ((host->cmd->opcode == MMC_SET_BLOCK_COUNT) && - (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) + (imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) imx_data->multiblock_status = MULTIBLK_IN_PROCESS; - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) writel(val << 16, host->ioaddr + SDHCI_TRANSFER_MODE); else @@ -379,8 +545,10 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) * The reset on usdhc fails to clear MIX_CTRL register. * Do it manually here. */ - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) { writel(0, host->ioaddr + ESDHC_MIX_CTRL); + imx_data->is_ddr = 0; + } } } @@ -409,8 +577,60 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, unsigned int clock) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + unsigned int host_clock = clk_get_rate(pltfm_host->clk); + int pre_div = 2; + int div = 1; + u32 temp, val; + + if (clock == 0) { + if (esdhc_is_usdhc(imx_data)) { + val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); + writel(val & ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON, + host->ioaddr + ESDHC_VENDOR_SPEC); + } + goto out; + } + + if (esdhc_is_usdhc(imx_data) && !imx_data->is_ddr) + pre_div = 1; + + temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); + temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN + | ESDHC_CLOCK_MASK); + sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); + + while (host_clock / pre_div / 16 > clock && pre_div < 256) + pre_div *= 2; + + while (host_clock / pre_div / div > clock && div < 16) + div++; - esdhc_set_clock(host, clock, clk_get_rate(pltfm_host->clk)); + host->mmc->actual_clock = host_clock / pre_div / div; + dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n", + clock, host->mmc->actual_clock); + + if (imx_data->is_ddr) + pre_div >>= 2; + else + pre_div >>= 1; + div--; + + temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); + temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN + | (div << ESDHC_DIVIDER_SHIFT) + | (pre_div << ESDHC_PREDIV_SHIFT)); + sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); + + if (esdhc_is_usdhc(imx_data)) { + val = readl(host->ioaddr + ESDHC_VENDOR_SPEC); + writel(val | ESDHC_VENDOR_SPEC_FRC_SDCLK_ON, + host->ioaddr + ESDHC_VENDOR_SPEC); + } + + mdelay(1); +out: + host->clock = clock; } static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host) @@ -454,7 +674,192 @@ static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width) return 0; } -static const struct sdhci_ops sdhci_esdhc_ops = { +static void esdhc_prepare_tuning(struct sdhci_host *host, u32 val) +{ + u32 reg; + + /* FIXME: delay a bit for card to be ready for next tuning due to errors */ + mdelay(1); + + reg = readl(host->ioaddr + ESDHC_MIX_CTRL); + reg |= ESDHC_MIX_CTRL_EXE_TUNE | ESDHC_MIX_CTRL_SMPCLK_SEL | + ESDHC_MIX_CTRL_FBCLK_SEL; + writel(reg, host->ioaddr + ESDHC_MIX_CTRL); + writel(val << 8, host->ioaddr + ESDHC_TUNE_CTRL_STATUS); + dev_dbg(mmc_dev(host->mmc), + "tunning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n", + val, readl(host->ioaddr + ESDHC_TUNE_CTRL_STATUS)); +} + +static void esdhc_request_done(struct mmc_request *mrq) +{ + complete(&mrq->completion); +} + +static int esdhc_send_tuning_cmd(struct sdhci_host *host, u32 opcode) +{ + struct mmc_command cmd = {0}; + struct mmc_request mrq = {0}; + struct mmc_data data = {0}; + struct scatterlist sg; + char tuning_pattern[ESDHC_TUNING_BLOCK_PATTERN_LEN]; + + cmd.opcode = opcode; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + + data.blksz = ESDHC_TUNING_BLOCK_PATTERN_LEN; + data.blocks = 1; + data.flags = MMC_DATA_READ; + data.sg = &sg; + data.sg_len = 1; + + sg_init_one(&sg, tuning_pattern, sizeof(tuning_pattern)); + + mrq.cmd = &cmd; + mrq.cmd->mrq = &mrq; + mrq.data = &data; + mrq.data->mrq = &mrq; + mrq.cmd->data = mrq.data; + + mrq.done = esdhc_request_done; + init_completion(&(mrq.completion)); + + disable_irq(host->irq); + spin_lock(&host->lock); + host->mrq = &mrq; + + sdhci_send_command(host, mrq.cmd); + + spin_unlock(&host->lock); + enable_irq(host->irq); + + wait_for_completion(&mrq.completion); + + if (cmd.error) + return cmd.error; + if (data.error) + return data.error; + + return 0; +} + +static void esdhc_post_tuning(struct sdhci_host *host) +{ + u32 reg; + + reg = readl(host->ioaddr + ESDHC_MIX_CTRL); + reg &= ~ESDHC_MIX_CTRL_EXE_TUNE; + writel(reg, host->ioaddr + ESDHC_MIX_CTRL); +} + +static int esdhc_executing_tuning(struct sdhci_host *host, u32 opcode) +{ + int min, max, avg, ret; + + /* find the mininum delay first which can pass tuning */ + min = ESDHC_TUNE_CTRL_MIN; + while (min < ESDHC_TUNE_CTRL_MAX) { + esdhc_prepare_tuning(host, min); + if (!esdhc_send_tuning_cmd(host, opcode)) + break; + min += ESDHC_TUNE_CTRL_STEP; + } + + /* find the maxinum delay which can not pass tuning */ + max = min + ESDHC_TUNE_CTRL_STEP; + while (max < ESDHC_TUNE_CTRL_MAX) { + esdhc_prepare_tuning(host, max); + if (esdhc_send_tuning_cmd(host, opcode)) { + max -= ESDHC_TUNE_CTRL_STEP; + break; + } + max += ESDHC_TUNE_CTRL_STEP; + } + + /* use average delay to get the best timing */ + avg = (min + max) / 2; + esdhc_prepare_tuning(host, avg); + ret = esdhc_send_tuning_cmd(host, opcode); + esdhc_post_tuning(host); + + dev_dbg(mmc_dev(host->mmc), "tunning %s at 0x%x ret %d\n", + ret ? "failed" : "passed", avg, ret); + + return ret; +} + +static int esdhc_change_pinstate(struct sdhci_host *host, + unsigned int uhs) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + struct pinctrl_state *pinctrl; + + dev_dbg(mmc_dev(host->mmc), "change pinctrl state for uhs %d\n", uhs); + + if (IS_ERR(imx_data->pinctrl) || + IS_ERR(imx_data->pins_default) || + IS_ERR(imx_data->pins_100mhz) || + IS_ERR(imx_data->pins_200mhz)) + return -EINVAL; + + switch (uhs) { + case MMC_TIMING_UHS_SDR50: + pinctrl = imx_data->pins_100mhz; + break; + case MMC_TIMING_UHS_SDR104: + pinctrl = imx_data->pins_200mhz; + break; + default: + /* back to default state for other legacy timing */ + pinctrl = imx_data->pins_default; + } + + return pinctrl_select_state(imx_data->pinctrl, pinctrl); +} + +static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; + struct esdhc_platform_data *boarddata = &imx_data->boarddata; + + switch (uhs) { + case MMC_TIMING_UHS_SDR12: + imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR12; + break; + case MMC_TIMING_UHS_SDR25: + imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR25; + break; + case MMC_TIMING_UHS_SDR50: + imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR50; + break; + case MMC_TIMING_UHS_SDR104: + imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR104; + break; + case MMC_TIMING_UHS_DDR50: + imx_data->uhs_mode = SDHCI_CTRL_UHS_DDR50; + writel(readl(host->ioaddr + ESDHC_MIX_CTRL) | + ESDHC_MIX_CTRL_DDREN, + host->ioaddr + ESDHC_MIX_CTRL); + imx_data->is_ddr = 1; + if (boarddata->delay_line) { + u32 v; + v = boarddata->delay_line << + ESDHC_DLL_OVERRIDE_VAL_SHIFT | + (1 << ESDHC_DLL_OVERRIDE_EN_SHIFT); + if (is_imx53_esdhc(imx_data)) + v <<= 1; + writel(v, host->ioaddr + ESDHC_DLL_CTRL); + } + break; + } + + return esdhc_change_pinstate(host, uhs); +} + +static struct sdhci_ops sdhci_esdhc_ops = { .read_l = esdhc_readl_le, .read_w = esdhc_readw_le, .write_l = esdhc_writel_le, @@ -465,6 +870,7 @@ static const struct sdhci_ops sdhci_esdhc_ops = { .get_min_clock = esdhc_pltfm_get_min_clock, .get_ro = esdhc_pltfm_get_ro, .platform_bus_width = esdhc_pltfm_bus_width, + .set_uhs_signaling = esdhc_set_uhs_signaling, }; static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = { @@ -506,6 +912,14 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, of_property_read_u32(np, "max-frequency", &boarddata->f_max); + if (of_find_property(np, "no-1-8-v", NULL)) + boarddata->support_vsel = false; + else + boarddata->support_vsel = true; + + if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line)) + boarddata->delay_line = 0; + return 0; } #else @@ -539,9 +953,8 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) goto free_sdhci; } - if (of_id) - pdev->id_entry = of_id->data; - imx_data->devtype = pdev->id_entry->driver_data; + imx_data->socdata = of_id ? of_id->data : (struct esdhc_soc_data *) + pdev->id_entry->driver_data; pltfm_host->priv = imx_data; imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); @@ -568,29 +981,39 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) clk_prepare_enable(imx_data->clk_ipg); clk_prepare_enable(imx_data->clk_ahb); - imx_data->pinctrl = devm_pinctrl_get_select_default(&pdev->dev); + imx_data->pinctrl = devm_pinctrl_get(&pdev->dev); if (IS_ERR(imx_data->pinctrl)) { err = PTR_ERR(imx_data->pinctrl); goto disable_clk; } + imx_data->pins_default = pinctrl_lookup_state(imx_data->pinctrl, + PINCTRL_STATE_DEFAULT); + if (IS_ERR(imx_data->pins_default)) { + err = PTR_ERR(imx_data->pins_default); + dev_err(mmc_dev(host->mmc), "could not get default state\n"); + goto disable_clk; + } + host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; - if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) + if (imx_data->socdata->flags & ESDHC_FLAG_ENGCM07207) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK | SDHCI_QUIRK_BROKEN_ADMA; - if (is_imx53_esdhc(imx_data)) - imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT; - /* * The imx6q ROM code will change the default watermark level setting * to something insane. Change it back here. */ - if (is_imx6q_usdhc(imx_data)) + if (esdhc_is_usdhc(imx_data)) { writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL); + host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN; + } + if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) + sdhci_esdhc_ops.platform_execute_tuning = + esdhc_executing_tuning; boarddata = &imx_data->boarddata; if (sdhci_esdhc_imx_probe_dt(pdev, boarddata) < 0) { if (!host->mmc->parent->platform_data) { @@ -650,6 +1073,23 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) break; } + /* sdr50 and sdr104 needs work on 1.8v signal voltage */ + if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data)) { + imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl, + ESDHC_PINCTRL_STATE_100MHZ); + imx_data->pins_200mhz = pinctrl_lookup_state(imx_data->pinctrl, + ESDHC_PINCTRL_STATE_200MHZ); + if (IS_ERR(imx_data->pins_100mhz) || + IS_ERR(imx_data->pins_200mhz)) { + dev_warn(mmc_dev(host->mmc), + "could not get ultra high speed state, work on normal mode\n"); + /* fall back to not support uhs by specify no 1.8v quirk */ + host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; + } + } else { + host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; + } + err = sdhci_add_host(host); if (err) goto disable_clk; diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h index a2a06420e463..a7d9f95a7b03 100644 --- a/drivers/mmc/host/sdhci-esdhc.h +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -49,41 +49,4 @@ #define ESDHC_HOST_CONTROL_RES 0x05 -static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock, - unsigned int host_clock) -{ - int pre_div = 2; - int div = 1; - u32 temp; - - if (clock == 0) - goto out; - - temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); - temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN - | ESDHC_CLOCK_MASK); - sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); - - while (host_clock / pre_div / 16 > clock && pre_div < 256) - pre_div *= 2; - - while (host_clock / pre_div / div > clock && div < 16) - div++; - - dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n", - clock, host_clock / pre_div / div); - - pre_div >>= 1; - div--; - - temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); - temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN - | (div << ESDHC_DIVIDER_SHIFT) - | (pre_div << ESDHC_PREDIV_SHIFT)); - sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); - mdelay(1); -out: - host->clock = clock; -} - #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */ diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index e328252ebf2a..0b249970b119 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -199,6 +199,14 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host) static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock) { + + int pre_div = 2; + int div = 1; + u32 temp; + + if (clock == 0) + goto out; + /* Workaround to reduce the clock frequency for p1010 esdhc */ if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) { if (clock > 20000000) @@ -207,8 +215,31 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock) clock -= 5000000; } - /* Set the clock */ - esdhc_set_clock(host, clock, host->max_clk); + temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); + temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN + | ESDHC_CLOCK_MASK); + sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); + + while (host->max_clk / pre_div / 16 > clock && pre_div < 256) + pre_div *= 2; + + while (host->max_clk / pre_div / div > clock && div < 16) + div++; + + dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n", + clock, host->max_clk / pre_div / div); + + pre_div >>= 1; + div--; + + temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); + temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN + | (div << ESDHC_DIVIDER_SHIFT) + | (pre_div << ESDHC_PREDIV_SHIFT)); + sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); + mdelay(1); +out: + host->clock = clock; } #ifdef CONFIG_PM diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index d7d6bc8968d2..8f753811fc7a 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -37,6 +37,12 @@ #define PCI_DEVICE_ID_INTEL_BYT_SDIO 0x0f15 #define PCI_DEVICE_ID_INTEL_BYT_SD 0x0f16 #define PCI_DEVICE_ID_INTEL_BYT_EMMC2 0x0f50 +#define PCI_DEVICE_ID_INTEL_MRFL_MMC 0x1190 +#define PCI_DEVICE_ID_INTEL_CLV_SDIO0 0x08f9 +#define PCI_DEVICE_ID_INTEL_CLV_SDIO1 0x08fa +#define PCI_DEVICE_ID_INTEL_CLV_SDIO2 0x08fb +#define PCI_DEVICE_ID_INTEL_CLV_EMMC0 0x08e5 +#define PCI_DEVICE_ID_INTEL_CLV_EMMC1 0x08e6 /* * PCI registers @@ -356,6 +362,28 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { .allow_runtime_pm = true, }; +/* Define Host controllers for Intel Merrifield platform */ +#define INTEL_MRFL_EMMC_0 0 +#define INTEL_MRFL_EMMC_1 1 + +static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot) +{ + if ((PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_0) && + (PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_1)) + /* SD support is not ready yet */ + return -ENODEV; + + slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | + MMC_CAP_1_8V_DDR; + + return 0; +} + +static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = { + .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .probe_slot = intel_mrfl_mmc_probe_slot, +}; + /* O2Micro extra registers */ #define O2_SD_LOCK_WP 0xD3 #define O2_SD_MULTI_VCC3V 0xEE @@ -939,6 +967,54 @@ static const struct pci_device_id pci_ids[] = { .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_CLV_SDIO0, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_CLV_SDIO1, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_CLV_SDIO2, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_CLV_EMMC0, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_CLV_EMMC1, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_MRFL_MMC, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_mrfl_mmc, + }, { .vendor = PCI_VENDOR_ID_O2, .device = PCI_DEVICE_ID_O2_8120, diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 7a7fb4f0d5a4..bd8a0982aec3 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -49,7 +49,6 @@ static unsigned int debug_quirks2; static void sdhci_finish_data(struct sdhci_host *); -static void sdhci_send_command(struct sdhci_host *, struct mmc_command *); static void sdhci_finish_command(struct sdhci_host *); static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode); static void sdhci_tuning_timer(unsigned long data); @@ -981,7 +980,7 @@ static void sdhci_finish_data(struct sdhci_host *host) tasklet_schedule(&host->finish_tasklet); } -static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) +void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) { int flags; u32 mask; @@ -1053,6 +1052,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); } +EXPORT_SYMBOL_GPL(sdhci_send_command); static void sdhci_finish_command(struct sdhci_host *host) { @@ -1435,7 +1435,8 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios) } if (host->version >= SDHCI_SPEC_300 && - (ios->power_mode == MMC_POWER_UP)) + (ios->power_mode == MMC_POWER_UP) && + !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) sdhci_enable_preset_value(host, false); sdhci_set_clock(host, ios->clock); @@ -1875,6 +1876,14 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) return 0; } + if (host->ops->platform_execute_tuning) { + spin_unlock(&host->lock); + enable_irq(host->irq); + err = host->ops->platform_execute_tuning(host, opcode); + sdhci_runtime_pm_put(host); + return err; + } + sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); /* @@ -1981,6 +1990,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode) if (!tuning_loop_counter || !timeout) { ctrl &= ~SDHCI_CTRL_TUNED_CLK; sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); + err = -EIO; } else { if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) { pr_info(DRIVER_NAME ": Tuning procedure" @@ -2491,6 +2501,14 @@ again: result = IRQ_HANDLED; intmask = sdhci_readl(host, SDHCI_INT_STATUS); + + /* + * If we know we'll call the driver to signal SDIO IRQ, disregard + * further indications of Card Interrupt in the status to avoid a + * needless loop. + */ + if (cardint) + intmask &= ~SDHCI_INT_CARD_INT; if (intmask && --max_loops) goto again; out: @@ -2546,8 +2564,6 @@ EXPORT_SYMBOL_GPL(sdhci_disable_irq_wakeups); int sdhci_suspend_host(struct sdhci_host *host) { - int ret; - if (host->ops->platform_suspend) host->ops->platform_suspend(host); @@ -2559,19 +2575,6 @@ int sdhci_suspend_host(struct sdhci_host *host) host->flags &= ~SDHCI_NEEDS_RETUNING; } - ret = mmc_suspend_host(host->mmc); - if (ret) { - if (host->flags & SDHCI_USING_RETUNING_TIMER) { - host->flags |= SDHCI_NEEDS_RETUNING; - mod_timer(&host->tuning_timer, jiffies + - host->tuning_count * HZ); - } - - sdhci_enable_card_detection(host); - - return ret; - } - if (!device_may_wakeup(mmc_dev(host->mmc))) { sdhci_mask_irqs(host, SDHCI_INT_ALL_MASK); free_irq(host->irq, host); @@ -2579,14 +2582,14 @@ int sdhci_suspend_host(struct sdhci_host *host) sdhci_enable_irq_wakeups(host); enable_irq_wake(host->irq); } - return ret; + return 0; } EXPORT_SYMBOL_GPL(sdhci_suspend_host); int sdhci_resume_host(struct sdhci_host *host) { - int ret; + int ret = 0; if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { if (host->ops->enable_dma) @@ -2615,7 +2618,6 @@ int sdhci_resume_host(struct sdhci_host *host) mmiowb(); } - ret = mmc_resume_host(host->mmc); sdhci_enable_card_detection(host); if (host->ops->platform_resume) diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index b037f188fe44..0a3ed01887db 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -288,6 +288,7 @@ struct sdhci_ops { unsigned int (*get_ro)(struct sdhci_host *host); void (*platform_reset_enter)(struct sdhci_host *host, u8 mask); void (*platform_reset_exit)(struct sdhci_host *host, u8 mask); + int (*platform_execute_tuning)(struct sdhci_host *host, u32 opcode); int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs); void (*hw_reset)(struct sdhci_host *host); void (*platform_suspend)(struct sdhci_host *host); @@ -393,6 +394,8 @@ static inline void *sdhci_priv(struct sdhci_host *host) extern void sdhci_card_detect(struct sdhci_host *host); extern int sdhci_add_host(struct sdhci_host *host); extern void sdhci_remove_host(struct sdhci_host *host, int dead); +extern void sdhci_send_command(struct sdhci_host *host, + struct mmc_command *cmd); #ifdef CONFIG_PM extern int sdhci_suspend_host(struct sdhci_host *host); diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c index 50adbd155f35..b7e305775314 100644 --- a/drivers/mmc/host/sdricoh_cs.c +++ b/drivers/mmc/host/sdricoh_cs.c @@ -516,9 +516,7 @@ static void sdricoh_pcmcia_detach(struct pcmcia_device *link) #ifdef CONFIG_PM static int sdricoh_pcmcia_suspend(struct pcmcia_device *link) { - struct mmc_host *mmc = link->priv; dev_dbg(&link->dev, "suspend\n"); - mmc_suspend_host(mmc); return 0; } @@ -527,7 +525,6 @@ static int sdricoh_pcmcia_resume(struct pcmcia_device *link) struct mmc_host *mmc = link->priv; dev_dbg(&link->dev, "resume\n"); sdricoh_reset(mmc_priv(mmc)); - mmc_resume_host(mmc); return 0; } #else diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 36629a024aa1..d032b080ac4d 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -964,7 +964,7 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq) static int sh_mmcif_clk_update(struct sh_mmcif_host *host) { - int ret = clk_enable(host->hclk); + int ret = clk_prepare_enable(host->hclk); if (!ret) { host->clk = clk_get_rate(host->hclk); @@ -1018,7 +1018,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) } if (host->power) { pm_runtime_put_sync(&host->pd->dev); - clk_disable(host->hclk); + clk_disable_unprepare(host->hclk); host->power = false; if (ios->power_mode == MMC_POWER_OFF) sh_mmcif_set_power(host, ios); @@ -1466,7 +1466,7 @@ static int sh_mmcif_probe(struct platform_device *pdev) mutex_init(&host->thread_lock); - clk_disable(host->hclk); + clk_disable_unprepare(host->hclk); ret = mmc_add_host(mmc); if (ret < 0) goto emmcaddh; @@ -1487,7 +1487,7 @@ ereqirq1: ereqirq0: pm_runtime_suspend(&pdev->dev); eresume: - clk_disable(host->hclk); + clk_disable_unprepare(host->hclk); eclkupdate: clk_put(host->hclk); eclkget: @@ -1505,7 +1505,7 @@ static int sh_mmcif_remove(struct platform_device *pdev) int irq[2]; host->dying = true; - clk_enable(host->hclk); + clk_prepare_enable(host->hclk); pm_runtime_get_sync(&pdev->dev); dev_pm_qos_hide_latency_limit(&pdev->dev); @@ -1530,7 +1530,7 @@ static int sh_mmcif_remove(struct platform_device *pdev) if (irq[1] >= 0) free_irq(irq[1], host); - clk_disable(host->hclk); + clk_disable_unprepare(host->hclk); mmc_free_host(host->mmc); pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); @@ -1538,28 +1538,21 @@ static int sh_mmcif_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int sh_mmcif_suspend(struct device *dev) { struct sh_mmcif_host *host = dev_get_drvdata(dev); - int ret = mmc_suspend_host(host->mmc); - if (!ret) - sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL); + sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL); - return ret; + return 0; } static int sh_mmcif_resume(struct device *dev) { - struct sh_mmcif_host *host = dev_get_drvdata(dev); - - return mmc_resume_host(host->mmc); + return 0; } -#else -#define sh_mmcif_suspend NULL -#define sh_mmcif_resume NULL -#endif /* CONFIG_PM */ +#endif static const struct of_device_id mmcif_of_match[] = { { .compatible = "renesas,sh-mmcif" }, @@ -1568,8 +1561,7 @@ static const struct of_device_id mmcif_of_match[] = { MODULE_DEVICE_TABLE(of, mmcif_of_match); static const struct dev_pm_ops sh_mmcif_dev_pm_ops = { - .suspend = sh_mmcif_suspend, - .resume = sh_mmcif_resume, + SET_SYSTEM_SLEEP_PM_OPS(sh_mmcif_suspend, sh_mmcif_resume) }; static struct platform_driver sh_mmcif_driver = { diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c index 43d962829f8e..d1760ebcac03 100644 --- a/drivers/mmc/host/tifm_sd.c +++ b/drivers/mmc/host/tifm_sd.c @@ -1030,7 +1030,7 @@ static void tifm_sd_remove(struct tifm_dev *sock) static int tifm_sd_suspend(struct tifm_dev *sock, pm_message_t state) { - return mmc_suspend_host(tifm_get_drvdata(sock)); + return 0; } static int tifm_sd_resume(struct tifm_dev *sock) @@ -1044,8 +1044,6 @@ static int tifm_sd_resume(struct tifm_dev *sock) if (rc) host->eject = 1; - else - rc = mmc_resume_host(mmc); return rc; } diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c index b3802256f954..f3b2d8ca1eca 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_pio.c @@ -1145,12 +1145,9 @@ int tmio_mmc_host_suspend(struct device *dev) { struct mmc_host *mmc = dev_get_drvdata(dev); struct tmio_mmc_host *host = mmc_priv(mmc); - int ret = mmc_suspend_host(mmc); - if (!ret) - tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL); - - return ret; + tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL); + return 0; } EXPORT_SYMBOL(tmio_mmc_host_suspend); @@ -1163,7 +1160,7 @@ int tmio_mmc_host_resume(struct device *dev) /* The MMC core will perform the complete set up */ host->resuming = true; - return mmc_resume_host(mmc); + return 0; } EXPORT_SYMBOL(tmio_mmc_host_resume); diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c index 4f84586c6e9e..63fac78b3d46 100644 --- a/drivers/mmc/host/via-sdmmc.c +++ b/drivers/mmc/host/via-sdmmc.c @@ -1269,21 +1269,18 @@ static void via_init_sdc_pm(struct via_crdr_mmc_host *host) static int via_sd_suspend(struct pci_dev *pcidev, pm_message_t state) { struct via_crdr_mmc_host *host; - int ret = 0; host = pci_get_drvdata(pcidev); via_save_pcictrlreg(host); via_save_sdcreg(host); - ret = mmc_suspend_host(host->mmc); - pci_save_state(pcidev); pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0); pci_disable_device(pcidev); pci_set_power_state(pcidev, pci_choose_state(pcidev, state)); - return ret; + return 0; } static int via_sd_resume(struct pci_dev *pcidev) @@ -1316,8 +1313,6 @@ static int via_sd_resume(struct pci_dev *pcidev) via_restore_pcictrlreg(sdhost); via_init_sdc_pm(sdhost); - ret = mmc_resume_host(sdhost->mmc); - return ret; } diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c index e9028ad05ffb..4262296c12fa 100644 --- a/drivers/mmc/host/vub300.c +++ b/drivers/mmc/host/vub300.c @@ -2392,26 +2392,12 @@ static void vub300_disconnect(struct usb_interface *interface) #ifdef CONFIG_PM static int vub300_suspend(struct usb_interface *intf, pm_message_t message) { - struct vub300_mmc_host *vub300 = usb_get_intfdata(intf); - if (!vub300 || !vub300->mmc) { - return 0; - } else { - struct mmc_host *mmc = vub300->mmc; - mmc_suspend_host(mmc); - return 0; - } + return 0; } static int vub300_resume(struct usb_interface *intf) { - struct vub300_mmc_host *vub300 = usb_get_intfdata(intf); - if (!vub300 || !vub300->mmc) { - return 0; - } else { - struct mmc_host *mmc = vub300->mmc; - mmc_resume_host(mmc); - return 0; - } + return 0; } #else #define vub300_suspend NULL diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c index e954b7758876..1defd5ed3236 100644 --- a/drivers/mmc/host/wbsd.c +++ b/drivers/mmc/host/wbsd.c @@ -1814,28 +1814,11 @@ static void wbsd_pnp_remove(struct pnp_dev *dev) #ifdef CONFIG_PM -static int wbsd_suspend(struct wbsd_host *host, pm_message_t state) -{ - BUG_ON(host == NULL); - - return mmc_suspend_host(host->mmc); -} - -static int wbsd_resume(struct wbsd_host *host) -{ - BUG_ON(host == NULL); - - wbsd_init_device(host); - - return mmc_resume_host(host->mmc); -} - static int wbsd_platform_suspend(struct platform_device *dev, pm_message_t state) { struct mmc_host *mmc = platform_get_drvdata(dev); struct wbsd_host *host; - int ret; if (mmc == NULL) return 0; @@ -1844,12 +1827,7 @@ static int wbsd_platform_suspend(struct platform_device *dev, host = mmc_priv(mmc); - ret = wbsd_suspend(host, state); - if (ret) - return ret; - wbsd_chip_poweroff(host); - return 0; } @@ -1872,7 +1850,8 @@ static int wbsd_platform_resume(struct platform_device *dev) */ mdelay(5); - return wbsd_resume(host); + wbsd_init_device(host); + return 0; } #ifdef CONFIG_PNP @@ -1880,16 +1859,12 @@ static int wbsd_platform_resume(struct platform_device *dev) static int wbsd_pnp_suspend(struct pnp_dev *pnp_dev, pm_message_t state) { struct mmc_host *mmc = dev_get_drvdata(&pnp_dev->dev); - struct wbsd_host *host; if (mmc == NULL) return 0; DBGF("Suspending...\n"); - - host = mmc_priv(mmc); - - return wbsd_suspend(host, state); + return 0; } static int wbsd_pnp_resume(struct pnp_dev *pnp_dev) @@ -1922,7 +1897,8 @@ static int wbsd_pnp_resume(struct pnp_dev *pnp_dev) */ mdelay(5); - return wbsd_resume(host); + wbsd_init_device(host); + return 0; } #endif /* CONFIG_PNP */ diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c index 34231d5168fc..e902ed7846b0 100644 --- a/drivers/mmc/host/wmt-sdmmc.c +++ b/drivers/mmc/host/wmt-sdmmc.c @@ -212,28 +212,14 @@ struct wmt_mci_priv { static void wmt_set_sd_power(struct wmt_mci_priv *priv, int enable) { - u32 reg_tmp; - if (enable) { - if (priv->power_inverted) { - reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); - writeb(reg_tmp | BM_SD_OFF, - priv->sdmmc_base + SDMMC_BUSMODE); - } else { - reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); - writeb(reg_tmp & (~BM_SD_OFF), - priv->sdmmc_base + SDMMC_BUSMODE); - } - } else { - if (priv->power_inverted) { - reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); - writeb(reg_tmp & (~BM_SD_OFF), - priv->sdmmc_base + SDMMC_BUSMODE); - } else { - reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); - writeb(reg_tmp | BM_SD_OFF, - priv->sdmmc_base + SDMMC_BUSMODE); - } - } + u32 reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); + + if (enable ^ priv->power_inverted) + reg_tmp &= ~BM_SD_OFF; + else + reg_tmp |= BM_SD_OFF; + + writeb(reg_tmp, priv->sdmmc_base + SDMMC_BUSMODE); } static void wmt_mci_read_response(struct mmc_host *mmc) @@ -939,28 +925,23 @@ static int wmt_mci_suspend(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct mmc_host *mmc = platform_get_drvdata(pdev); struct wmt_mci_priv *priv; - int ret; if (!mmc) return 0; priv = mmc_priv(mmc); - ret = mmc_suspend_host(mmc); - - if (!ret) { - reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); - writeb(reg_tmp | BM_SOFT_RESET, priv->sdmmc_base + - SDMMC_BUSMODE); + reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE); + writeb(reg_tmp | BM_SOFT_RESET, priv->sdmmc_base + + SDMMC_BUSMODE); - reg_tmp = readw(priv->sdmmc_base + SDMMC_BLKLEN); - writew(reg_tmp & 0x5FFF, priv->sdmmc_base + SDMMC_BLKLEN); + reg_tmp = readw(priv->sdmmc_base + SDMMC_BLKLEN); + writew(reg_tmp & 0x5FFF, priv->sdmmc_base + SDMMC_BLKLEN); - writeb(0xFF, priv->sdmmc_base + SDMMC_STS0); - writeb(0xFF, priv->sdmmc_base + SDMMC_STS1); + writeb(0xFF, priv->sdmmc_base + SDMMC_STS0); + writeb(0xFF, priv->sdmmc_base + SDMMC_STS1); - clk_disable(priv->clk_sdmmc); - } - return ret; + clk_disable(priv->clk_sdmmc); + return 0; } static int wmt_mci_resume(struct device *dev) @@ -969,7 +950,6 @@ static int wmt_mci_resume(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct mmc_host *mmc = platform_get_drvdata(pdev); struct wmt_mci_priv *priv; - int ret = 0; if (mmc) { priv = mmc_priv(mmc); @@ -987,10 +967,9 @@ static int wmt_mci_resume(struct device *dev) writeb(reg_tmp | INT0_DI_INT_EN, priv->sdmmc_base + SDMMC_INTMASK0); - ret = mmc_resume_host(mmc); } - return ret; + return 0; } static const struct dev_pm_ops wmt_mci_pm = { diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index d78a97d4153a..59f08c44abdb 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -375,8 +375,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len, dma_dev = host->dma_chan->device; - flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP | - DMA_COMPL_SKIP_DEST_UNMAP; + flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; phys_addr = dma_map_single(dma_dev->dev, p, len, dir); if (dma_mapping_error(dma_dev->dev, phys_addr)) { diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 3dc1a7564d87..8b2752263db9 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -573,8 +573,6 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len, dma_dev = chan->device; dma_addr = dma_map_single(dma_dev->dev, buffer, len, direction); - flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP; - if (direction == DMA_TO_DEVICE) { dma_src = dma_addr; dma_dst = host->data_pa; diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index bc8fd362a5aa..0ec2a7e8c8a9 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -524,8 +524,9 @@ static ssize_t bonding_store_arp_interval(struct device *d, goto out; } if (bond->params.mode == BOND_MODE_ALB || - bond->params.mode == BOND_MODE_TLB) { - pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", + bond->params.mode == BOND_MODE_TLB || + bond->params.mode == BOND_MODE_8023AD) { + pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n", bond->dev->name, bond->dev->name); ret = -EINVAL; goto out; @@ -603,15 +604,14 @@ static ssize_t bonding_store_arp_targets(struct device *d, return restart_syscall(); targets = bond->params.arp_targets; - newtarget = in_aton(buf + 1); + if (!in4_pton(buf + 1, -1, (u8 *)&newtarget, -1, NULL) || + IS_IP_TARGET_UNUSABLE_ADDRESS(newtarget)) { + pr_err("%s: invalid ARP target %pI4 specified for addition\n", + bond->dev->name, &newtarget); + goto out; + } /* look for adds */ if (buf[0] == '+') { - if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { - pr_err("%s: invalid ARP target %pI4 specified for addition\n", - bond->dev->name, &newtarget); - goto out; - } - if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ pr_err("%s: ARP target %pI4 is already present\n", bond->dev->name, &newtarget); @@ -634,12 +634,6 @@ static ssize_t bonding_store_arp_targets(struct device *d, targets[ind] = newtarget; write_unlock_bh(&bond->lock); } else if (buf[0] == '-') { - if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { - pr_err("%s: invalid ARP target %pI4 specified for removal\n", - bond->dev->name, &newtarget); - goto out; - } - ind = bond_get_targets_ip(targets, newtarget); if (ind == -1) { pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", @@ -701,6 +695,8 @@ static ssize_t bonding_store_downdelay(struct device *d, int new_value, ret = count; struct bonding *bond = to_bond(d); + if (!rtnl_trylock()) + return restart_syscall(); if (!(bond->params.miimon)) { pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", bond->dev->name); @@ -734,6 +730,7 @@ static ssize_t bonding_store_downdelay(struct device *d, } out: + rtnl_unlock(); return ret; } static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, @@ -756,6 +753,8 @@ static ssize_t bonding_store_updelay(struct device *d, int new_value, ret = count; struct bonding *bond = to_bond(d); + if (!rtnl_trylock()) + return restart_syscall(); if (!(bond->params.miimon)) { pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", bond->dev->name); @@ -789,6 +788,7 @@ static ssize_t bonding_store_updelay(struct device *d, } out: + rtnl_unlock(); return ret; } static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 77a07a12e77f..ca31286aa028 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -63,6 +63,9 @@ (((mode) == BOND_MODE_TLB) || \ ((mode) == BOND_MODE_ALB)) +#define IS_IP_TARGET_UNUSABLE_ADDRESS(a) \ + ((htonl(INADDR_BROADCAST) == a) || \ + ipv4_is_zeronet(a)) /* * Less bad way to call ioctl from within the kernel; this needs to be * done some other way to get the call out of interrupt context. diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c index 5aa5e8146496..c3c4c266b846 100644 --- a/drivers/net/ethernet/atheros/alx/main.c +++ b/drivers/net/ethernet/atheros/alx/main.c @@ -1388,6 +1388,9 @@ static int alx_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct alx_priv *alx = pci_get_drvdata(pdev); + struct alx_hw *hw = &alx->hw; + + alx_reset_phy(hw); if (!netif_running(alx->dev)) return 0; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 4e01c57d8c8d..a1f66e2c9a86 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1376,7 +1376,6 @@ enum { BNX2X_SP_RTNL_RX_MODE, BNX2X_SP_RTNL_HYPERVISOR_VLAN, BNX2X_SP_RTNL_TX_STOP, - BNX2X_SP_RTNL_TX_RESUME, }; struct bnx2x_prev_path_list { diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index dcafbda3e5be..ec96130533cc 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -2959,6 +2959,10 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link) bp->port.pmf = 0; + /* clear pending work in rtnl task */ + bp->sp_rtnl_state = 0; + smp_mb(); + /* Free SKBs, SGEs, TPA pool and driver internals */ bnx2x_free_skbs(bp); if (CNIC_LOADED(bp)) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c index fcf2761d8828..fdace204b054 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c @@ -778,11 +778,6 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) /* ets may affect cmng configuration: reinit it in hw */ bnx2x_set_local_cmng(bp); - - set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state); - - schedule_delayed_work(&bp->sp_rtnl_task, 0); - return; case BNX2X_DCBX_STATE_TX_RELEASED: DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n"); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index e622cc1f96ff..814d0eca9b33 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -577,7 +577,9 @@ void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr, rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp)); if (rc) { BNX2X_ERR("DMAE returned failure %d\n", rc); +#ifdef BNX2X_STOP_ON_ERROR bnx2x_panic(); +#endif } } @@ -614,7 +616,9 @@ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32) rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp)); if (rc) { BNX2X_ERR("DMAE returned failure %d\n", rc); +#ifdef BNX2X_STOP_ON_ERROR bnx2x_panic(); +#endif } } @@ -5231,18 +5235,18 @@ static void bnx2x_eq_int(struct bnx2x *bp) case EVENT_RING_OPCODE_STOP_TRAFFIC: DP(BNX2X_MSG_SP | BNX2X_MSG_DCB, "got STOP TRAFFIC\n"); + bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED); if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_TX_STOP)) break; - bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED); goto next_spqe; case EVENT_RING_OPCODE_START_TRAFFIC: DP(BNX2X_MSG_SP | BNX2X_MSG_DCB, "got START TRAFFIC\n"); + bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED); if (f_obj->complete_cmd(bp, f_obj, BNX2X_F_CMD_TX_START)) break; - bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED); goto next_spqe; case EVENT_RING_OPCODE_FUNCTION_UPDATE: @@ -9352,6 +9356,10 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global) bnx2x_process_kill_chip_reset(bp, global); barrier(); + /* clear errors in PGB */ + if (!CHIP_IS_E1x(bp)) + REG_WR(bp, PGLUE_B_REG_LATCHED_ERRORS_CLR, 0x7f); + /* Recover after reset: */ /* MCP */ if (global && bnx2x_reset_mcp_comp(bp, val)) @@ -9706,11 +9714,10 @@ sp_rtnl_not_reset: &bp->sp_rtnl_state)) bnx2x_pf_set_vfs_vlan(bp); - if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state)) + if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state)) { bnx2x_dcbx_stop_hw_tx(bp); - - if (test_and_clear_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state)) bnx2x_dcbx_resume_hw_tx(bp); + } /* work which needs rtnl lock not-taken (as it takes the lock itself and * can be called from other contexts as well) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h index 5ecf267dc4cc..3efbb35267c8 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h @@ -2864,6 +2864,17 @@ #define PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ 0x9430 #define PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_WRITE 0x9434 #define PGLUE_B_REG_INTERNAL_VFID_ENABLE 0x9438 +/* [W 7] Writing 1 to each bit in this register clears a corresponding error + * details register and enables logging new error details. Bit 0 - clears + * INCORRECT_RCV_DETAILS; Bit 1 - clears RX_ERR_DETAILS; Bit 2 - clears + * TX_ERR_WR_ADD_31_0 TX_ERR_WR_ADD_63_32 TX_ERR_WR_DETAILS + * TX_ERR_WR_DETAILS2 TX_ERR_RD_ADD_31_0 TX_ERR_RD_ADD_63_32 + * TX_ERR_RD_DETAILS TX_ERR_RD_DETAILS2 TX_ERR_WR_DETAILS_ICPL; Bit 3 - + * clears VF_LENGTH_VIOLATION_DETAILS. Bit 4 - clears + * VF_GRC_SPACE_VIOLATION_DETAILS. Bit 5 - clears RX_TCPL_ERR_DETAILS. Bit 6 + * - clears TCPL_IN_TWO_RCBS_DETAILS. */ +#define PGLUE_B_REG_LATCHED_ERRORS_CLR 0x943c + /* [R 9] Interrupt register #0 read */ #define PGLUE_B_REG_PGLUE_B_INT_STS 0x9298 /* [RC 9] Interrupt register #0 read clear */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index 9199adf32d33..efa8a151d789 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -152,7 +152,7 @@ static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping) if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) { DP(BNX2X_MSG_IOV, "detecting channel down. Aborting message\n"); *done = PFVF_STATUS_SUCCESS; - return 0; + return -EINVAL; } /* Write message address */ diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 00c5be8c55b8..a9e068423ba0 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -13618,16 +13618,9 @@ static int tg3_hwtstamp_ioctl(struct net_device *dev, if (stmpconf.flags) return -EINVAL; - switch (stmpconf.tx_type) { - case HWTSTAMP_TX_ON: - tg3_flag_set(tp, TX_TSTAMP_EN); - break; - case HWTSTAMP_TX_OFF: - tg3_flag_clear(tp, TX_TSTAMP_EN); - break; - default: + if (stmpconf.tx_type != HWTSTAMP_TX_ON && + stmpconf.tx_type != HWTSTAMP_TX_OFF) return -ERANGE; - } switch (stmpconf.rx_filter) { case HWTSTAMP_FILTER_NONE: @@ -13689,6 +13682,11 @@ static int tg3_hwtstamp_ioctl(struct net_device *dev, tw32(TG3_RX_PTP_CTL, tp->rxptpctl | TG3_RX_PTP_CTL_HWTS_INTERLOCK); + if (stmpconf.tx_type == HWTSTAMP_TX_ON) + tg3_flag_set(tp, TX_TSTAMP_EN); + else + tg3_flag_clear(tp, TX_TSTAMP_EN); + return copy_to_user(ifr->ifr_data, &stmpconf, sizeof(stmpconf)) ? -EFAULT : 0; } diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index 7fb0edfe3d24..dbcd5262c016 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -1758,7 +1758,7 @@ err: /* Uses sycnhronous mcc */ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array, - u32 num, bool untagged, bool promiscuous) + u32 num, bool promiscuous) { struct be_mcc_wrb *wrb; struct be_cmd_req_vlan_config *req; @@ -1778,7 +1778,7 @@ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array, req->interface_id = if_id; req->promiscuous = promiscuous; - req->untagged = untagged; + req->untagged = BE_IF_FLAGS_UNTAGGED & be_if_cap_flags(adapter) ? 1 : 0; req->num_vlan = num; if (!promiscuous) { memcpy(req->normal_vlan, vtag_array, @@ -1847,7 +1847,19 @@ int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value) memcpy(req->mcast_mac[i++].byte, ha->addr, ETH_ALEN); } + if ((req->if_flags_mask & cpu_to_le32(be_if_cap_flags(adapter))) != + req->if_flags_mask) { + dev_warn(&adapter->pdev->dev, + "Cannot set rx filter flags 0x%x\n", + req->if_flags_mask); + dev_warn(&adapter->pdev->dev, + "Interface is capable of 0x%x flags only\n", + be_if_cap_flags(adapter)); + } + req->if_flags_mask &= cpu_to_le32(be_if_cap_flags(adapter)); + status = be_mcc_notify_wait(adapter); + err: spin_unlock_bh(&adapter->mcc_lock); return status; diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h index edf3e8a0ff83..0075686276aa 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.h +++ b/drivers/net/ethernet/emulex/benet/be_cmds.h @@ -1984,7 +1984,7 @@ int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver, char *fw_on_flash); int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *, int num); int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array, - u32 num, bool untagged, bool promiscuous); + u32 num, bool promiscuous); int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status); int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc); int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc); diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index eaecaadfa8c5..abde97471636 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1079,7 +1079,7 @@ static int be_vid_config(struct be_adapter *adapter) vids[num++] = cpu_to_le16(i); status = be_cmd_vlan_config(adapter, adapter->if_handle, - vids, num, 1, 0); + vids, num, 0); if (status) { /* Set to VLAN promisc mode as setting VLAN filter failed */ @@ -2676,6 +2676,11 @@ static int be_close(struct net_device *netdev) be_rx_qs_destroy(adapter); + for (i = 1; i < (adapter->uc_macs + 1); i++) + be_cmd_pmac_del(adapter, adapter->if_handle, + adapter->pmac_id[i], 0); + adapter->uc_macs = 0; + for_all_evt_queues(adapter, eqo, i) { if (msix_enabled(adapter)) synchronize_irq(be_msix_vec_get(adapter, eqo)); diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index b2793b91cc55..4cbebf3d80eb 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -386,7 +386,14 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *ndev) */ bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, bufaddr, FEC_ENET_TX_FRSIZE, DMA_TO_DEVICE); - + if (dma_mapping_error(&fep->pdev->dev, bdp->cbd_bufaddr)) { + bdp->cbd_bufaddr = 0; + fep->tx_skbuff[index] = NULL; + dev_kfree_skb_any(skb); + if (net_ratelimit()) + netdev_err(ndev, "Tx DMA memory map failed\n"); + return NETDEV_TX_OK; + } /* Send it on its way. Tell FEC it's ready, interrupt when done, * it's the last BD of the frame, and to put the CRC on the end. */ @@ -861,6 +868,7 @@ fec_enet_rx(struct net_device *ndev, int budget) struct bufdesc_ex *ebdp = NULL; bool vlan_packet_rcvd = false; u16 vlan_tag; + int index = 0; #ifdef CONFIG_M532x flush_cache_all(); @@ -916,10 +924,15 @@ fec_enet_rx(struct net_device *ndev, int budget) ndev->stats.rx_packets++; pkt_len = bdp->cbd_datlen; ndev->stats.rx_bytes += pkt_len; - data = (__u8*)__va(bdp->cbd_bufaddr); - dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr, - FEC_ENET_TX_FRSIZE, DMA_FROM_DEVICE); + if (fep->bufdesc_ex) + index = (struct bufdesc_ex *)bdp - + (struct bufdesc_ex *)fep->rx_bd_base; + else + index = bdp - fep->rx_bd_base; + data = fep->rx_skbuff[index]->data; + dma_sync_single_for_cpu(&fep->pdev->dev, bdp->cbd_bufaddr, + FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE); if (id_entry->driver_data & FEC_QUIRK_SWAP_FRAME) swap_buffer(data, pkt_len); @@ -999,8 +1012,8 @@ fec_enet_rx(struct net_device *ndev, int budget) napi_gro_receive(&fep->napi, skb); } - bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, data, - FEC_ENET_TX_FRSIZE, DMA_FROM_DEVICE); + dma_sync_single_for_device(&fep->pdev->dev, bdp->cbd_bufaddr, + FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE); rx_processing_done: /* Clear the status flags for this buffer */ status &= ~BD_ENET_RX_STATS; @@ -1719,6 +1732,12 @@ static int fec_enet_alloc_buffers(struct net_device *ndev) bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, skb->data, FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(&fep->pdev->dev, bdp->cbd_bufaddr)) { + fec_enet_free_buffers(ndev); + if (net_ratelimit()) + netdev_err(ndev, "Rx DMA memory map failed\n"); + return -ENOMEM; + } bdp->cbd_sc = BD_ENET_RX_EMPTY; if (fep->bufdesc_ex) { diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index aedd5736a87d..8d3945ab7334 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -3482,10 +3482,10 @@ s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca) * specified. Matching the kind of event packet is not supported, with the * exception of "all V2 events regardless of level 2 or 4". **/ -static int e1000e_config_hwtstamp(struct e1000_adapter *adapter) +static int e1000e_config_hwtstamp(struct e1000_adapter *adapter, + struct hwtstamp_config *config) { struct e1000_hw *hw = &adapter->hw; - struct hwtstamp_config *config = &adapter->hwtstamp_config; u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED; u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED; u32 rxmtrl = 0; @@ -3586,6 +3586,8 @@ static int e1000e_config_hwtstamp(struct e1000_adapter *adapter) return -ERANGE; } + adapter->hwtstamp_config = *config; + /* enable/disable Tx h/w time stamping */ regval = er32(TSYNCTXCTL); regval &= ~E1000_TSYNCTXCTL_ENABLED; @@ -3874,7 +3876,7 @@ void e1000e_reset(struct e1000_adapter *adapter) e1000e_reset_adaptive(hw); /* initialize systim and reset the ns time counter */ - e1000e_config_hwtstamp(adapter); + e1000e_config_hwtstamp(adapter, &adapter->hwtstamp_config); /* Set EEE advertisement as appropriate */ if (adapter->flags2 & FLAG2_HAS_EEE) { @@ -5797,14 +5799,10 @@ static int e1000e_hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr) if (copy_from_user(&config, ifr->ifr_data, sizeof(config))) return -EFAULT; - adapter->hwtstamp_config = config; - - ret_val = e1000e_config_hwtstamp(adapter); + ret_val = e1000e_config_hwtstamp(adapter, &config); if (ret_val) return ret_val; - config = adapter->hwtstamp_config; - switch (config.rx_filter) { case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index 00cd36e08601..61088a6a9424 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2890,7 +2890,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev) PHY_INTERFACE_MODE_GMII); if (!mp->phy) err = -ENODEV; - phy_addr_set(mp, mp->phy->addr); + else + phy_addr_set(mp, mp->phy->addr); } else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) { mp->phy = phy_scan(mp, pd->phy_addr); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 6ca30739625f..8675d26a678b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -98,6 +98,7 @@ enum { static struct mlx5_cmd_work_ent *alloc_cmd(struct mlx5_cmd *cmd, struct mlx5_cmd_msg *in, struct mlx5_cmd_msg *out, + void *uout, int uout_size, mlx5_cmd_cbk_t cbk, void *context, int page_queue) { @@ -110,6 +111,8 @@ static struct mlx5_cmd_work_ent *alloc_cmd(struct mlx5_cmd *cmd, ent->in = in; ent->out = out; + ent->uout = uout; + ent->uout_size = uout_size; ent->callback = cbk; ent->context = context; ent->cmd = cmd; @@ -534,6 +537,7 @@ static void cmd_work_handler(struct work_struct *work) ent->lay = lay; memset(lay, 0, sizeof(*lay)); memcpy(lay->in, ent->in->first.data, sizeof(lay->in)); + ent->op = be32_to_cpu(lay->in[0]) >> 16; if (ent->in->next) lay->in_ptr = cpu_to_be64(ent->in->next->dma); lay->inlen = cpu_to_be32(ent->in->len); @@ -628,7 +632,8 @@ static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent) * 2. page queue commands do not support asynchrous completion */ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, - struct mlx5_cmd_msg *out, mlx5_cmd_cbk_t callback, + struct mlx5_cmd_msg *out, void *uout, int uout_size, + mlx5_cmd_cbk_t callback, void *context, int page_queue, u8 *status) { struct mlx5_cmd *cmd = &dev->cmd; @@ -642,7 +647,8 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, if (callback && page_queue) return -EINVAL; - ent = alloc_cmd(cmd, in, out, callback, context, page_queue); + ent = alloc_cmd(cmd, in, out, uout, uout_size, callback, context, + page_queue); if (IS_ERR(ent)) return PTR_ERR(ent); @@ -670,10 +676,10 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, op = be16_to_cpu(((struct mlx5_inbox_hdr *)in->first.data)->opcode); if (op < ARRAY_SIZE(cmd->stats)) { stats = &cmd->stats[op]; - spin_lock(&stats->lock); + spin_lock_irq(&stats->lock); stats->sum += ds; ++stats->n; - spin_unlock(&stats->lock); + spin_unlock_irq(&stats->lock); } mlx5_core_dbg_mask(dev, 1 << MLX5_CMD_TIME, "fw exec time for %s is %lld nsec\n", @@ -826,7 +832,7 @@ static struct mlx5_cmd_msg *mlx5_alloc_cmd_msg(struct mlx5_core_dev *dev, int n; int i; - msg = kzalloc(sizeof(*msg), GFP_KERNEL); + msg = kzalloc(sizeof(*msg), flags); if (!msg) return ERR_PTR(-ENOMEM); @@ -1109,6 +1115,19 @@ void mlx5_cmd_use_polling(struct mlx5_core_dev *dev) up(&cmd->sem); } +static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg) +{ + unsigned long flags; + + if (msg->cache) { + spin_lock_irqsave(&msg->cache->lock, flags); + list_add_tail(&msg->list, &msg->cache->head); + spin_unlock_irqrestore(&msg->cache->lock, flags); + } else { + mlx5_free_cmd_msg(dev, msg); + } +} + void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) { struct mlx5_cmd *cmd = &dev->cmd; @@ -1117,6 +1136,10 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) void *context; int err; int i; + ktime_t t1, t2, delta; + s64 ds; + struct mlx5_cmd_stats *stats; + unsigned long flags; for (i = 0; i < (1 << cmd->log_sz); i++) { if (test_bit(i, &vector)) { @@ -1141,9 +1164,29 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector) } free_ent(cmd, ent->idx); if (ent->callback) { + t1 = timespec_to_ktime(ent->ts1); + t2 = timespec_to_ktime(ent->ts2); + delta = ktime_sub(t2, t1); + ds = ktime_to_ns(delta); + if (ent->op < ARRAY_SIZE(cmd->stats)) { + stats = &cmd->stats[ent->op]; + spin_lock_irqsave(&stats->lock, flags); + stats->sum += ds; + ++stats->n; + spin_unlock_irqrestore(&stats->lock, flags); + } + callback = ent->callback; context = ent->context; err = ent->ret; + if (!err) + err = mlx5_copy_from_msg(ent->uout, + ent->out, + ent->uout_size); + + mlx5_free_cmd_msg(dev, ent->out); + free_msg(dev, ent->in); + free_cmd(ent); callback(err, context); } else { @@ -1160,7 +1203,8 @@ static int status_to_err(u8 status) return status ? -1 : 0; /* TBD more meaningful codes */ } -static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size) +static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size, + gfp_t gfp) { struct mlx5_cmd_msg *msg = ERR_PTR(-ENOMEM); struct mlx5_cmd *cmd = &dev->cmd; @@ -1172,7 +1216,7 @@ static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size) ent = &cmd->cache.med; if (ent) { - spin_lock(&ent->lock); + spin_lock_irq(&ent->lock); if (!list_empty(&ent->head)) { msg = list_entry(ent->head.next, typeof(*msg), list); /* For cached lists, we must explicitly state what is @@ -1181,43 +1225,34 @@ static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size) msg->len = in_size; list_del(&msg->list); } - spin_unlock(&ent->lock); + spin_unlock_irq(&ent->lock); } if (IS_ERR(msg)) - msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, in_size); + msg = mlx5_alloc_cmd_msg(dev, gfp, in_size); return msg; } -static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg) -{ - if (msg->cache) { - spin_lock(&msg->cache->lock); - list_add_tail(&msg->list, &msg->cache->head); - spin_unlock(&msg->cache->lock); - } else { - mlx5_free_cmd_msg(dev, msg); - } -} - static int is_manage_pages(struct mlx5_inbox_hdr *in) { return be16_to_cpu(in->opcode) == MLX5_CMD_OP_MANAGE_PAGES; } -int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, - int out_size) +static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, + int out_size, mlx5_cmd_cbk_t callback, void *context) { struct mlx5_cmd_msg *inb; struct mlx5_cmd_msg *outb; int pages_queue; + gfp_t gfp; int err; u8 status = 0; pages_queue = is_manage_pages(in); + gfp = callback ? GFP_ATOMIC : GFP_KERNEL; - inb = alloc_msg(dev, in_size); + inb = alloc_msg(dev, in_size, gfp); if (IS_ERR(inb)) { err = PTR_ERR(inb); return err; @@ -1229,13 +1264,14 @@ int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, goto out_in; } - outb = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, out_size); + outb = mlx5_alloc_cmd_msg(dev, gfp, out_size); if (IS_ERR(outb)) { err = PTR_ERR(outb); goto out_in; } - err = mlx5_cmd_invoke(dev, inb, outb, NULL, NULL, pages_queue, &status); + err = mlx5_cmd_invoke(dev, inb, outb, out, out_size, callback, context, + pages_queue, &status); if (err) goto out_out; @@ -1248,14 +1284,30 @@ int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, err = mlx5_copy_from_msg(out, outb, out_size); out_out: - mlx5_free_cmd_msg(dev, outb); + if (!callback) + mlx5_free_cmd_msg(dev, outb); out_in: - free_msg(dev, inb); + if (!callback) + free_msg(dev, inb); return err; } + +int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, + int out_size) +{ + return cmd_exec(dev, in, in_size, out, out_size, NULL, NULL); +} EXPORT_SYMBOL(mlx5_cmd_exec); +int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size, + void *out, int out_size, mlx5_cmd_cbk_t callback, + void *context) +{ + return cmd_exec(dev, in, in_size, out, out_size, callback, context); +} +EXPORT_SYMBOL(mlx5_cmd_exec_cb); + static void destroy_msg_cache(struct mlx5_core_dev *dev) { struct mlx5_cmd *cmd = &dev->cmd; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c index 9c7194b26ee2..80f6d127257a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c @@ -154,10 +154,10 @@ static ssize_t average_read(struct file *filp, char __user *buf, size_t count, return 0; stats = filp->private_data; - spin_lock(&stats->lock); + spin_lock_irq(&stats->lock); if (stats->n) field = div64_u64(stats->sum, stats->n); - spin_unlock(&stats->lock); + spin_unlock_irq(&stats->lock); ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field); if (ret > 0) { if (copy_to_user(buf, tbuf, ret)) @@ -175,10 +175,10 @@ static ssize_t average_write(struct file *filp, const char __user *buf, struct mlx5_cmd_stats *stats; stats = filp->private_data; - spin_lock(&stats->lock); + spin_lock_irq(&stats->lock); stats->sum = 0; stats->n = 0; - spin_unlock(&stats->lock); + spin_unlock_irq(&stats->lock); *pos += count; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 2231d93cc7ad..64a61b286b2c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -354,7 +354,7 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_EQ); in->ctx.log_sz_usr_page = cpu_to_be32(ilog2(eq->nent) << 24 | uar->index); in->ctx.intr = vecidx; - in->ctx.log_page_size = PAGE_SHIFT - 12; + in->ctx.log_page_size = eq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT; in->events_mask = cpu_to_be64(mask); err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out)); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index bc0f5fb66e24..40a9f5ed814d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -159,6 +159,36 @@ struct mlx5_reg_host_endianess { u8 rsvd[15]; }; + +#define CAP_MASK(pos, size) ((u64)((1 << (size)) - 1) << (pos)) + +enum { + MLX5_CAP_BITS_RW_MASK = CAP_MASK(MLX5_CAP_OFF_CMDIF_CSUM, 2) | + CAP_MASK(MLX5_CAP_OFF_DCT, 1), +}; + +/* selectively copy writable fields clearing any reserved area + */ +static void copy_rw_fields(struct mlx5_hca_cap *to, struct mlx5_hca_cap *from) +{ + u64 v64; + + to->log_max_qp = from->log_max_qp & 0x1f; + to->log_max_ra_req_dc = from->log_max_ra_req_dc & 0x3f; + to->log_max_ra_res_dc = from->log_max_ra_res_dc & 0x3f; + to->log_max_ra_req_qp = from->log_max_ra_req_qp & 0x3f; + to->log_max_ra_res_qp = from->log_max_ra_res_qp & 0x3f; + to->log_max_atomic_size_qp = from->log_max_atomic_size_qp; + to->log_max_atomic_size_dc = from->log_max_atomic_size_dc; + v64 = be64_to_cpu(from->flags) & MLX5_CAP_BITS_RW_MASK; + to->flags = cpu_to_be64(v64); +} + +enum { + HCA_CAP_OPMOD_GET_MAX = 0, + HCA_CAP_OPMOD_GET_CUR = 1, +}; + static int handle_hca_cap(struct mlx5_core_dev *dev) { struct mlx5_cmd_query_hca_cap_mbox_out *query_out = NULL; @@ -180,7 +210,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) } query_ctx.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_HCA_CAP); - query_ctx.hdr.opmod = cpu_to_be16(0x1); + query_ctx.hdr.opmod = cpu_to_be16(HCA_CAP_OPMOD_GET_CUR); err = mlx5_cmd_exec(dev, &query_ctx, sizeof(query_ctx), query_out, sizeof(*query_out)); if (err) @@ -192,8 +222,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) goto query_ex; } - memcpy(&set_ctx->hca_cap, &query_out->hca_cap, - sizeof(set_ctx->hca_cap)); + copy_rw_fields(&set_ctx->hca_cap, &query_out->hca_cap); if (dev->profile->mask & MLX5_PROF_MASK_QP_SIZE) set_ctx->hca_cap.log_max_qp = dev->profile->log_max_qp; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c index 5b44e2e46daf..35e514dc7b7d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c @@ -37,31 +37,41 @@ #include "mlx5_core.h" int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr, - struct mlx5_create_mkey_mbox_in *in, int inlen) + struct mlx5_create_mkey_mbox_in *in, int inlen, + mlx5_cmd_cbk_t callback, void *context, + struct mlx5_create_mkey_mbox_out *out) { - struct mlx5_create_mkey_mbox_out out; + struct mlx5_create_mkey_mbox_out lout; int err; u8 key; - memset(&out, 0, sizeof(out)); - spin_lock(&dev->priv.mkey_lock); + memset(&lout, 0, sizeof(lout)); + spin_lock_irq(&dev->priv.mkey_lock); key = dev->priv.mkey_key++; - spin_unlock(&dev->priv.mkey_lock); + spin_unlock_irq(&dev->priv.mkey_lock); in->seg.qpn_mkey7_0 |= cpu_to_be32(key); in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY); - err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out)); + if (callback) { + err = mlx5_cmd_exec_cb(dev, in, inlen, out, sizeof(*out), + callback, context); + return err; + } else { + err = mlx5_cmd_exec(dev, in, inlen, &lout, sizeof(lout)); + } + if (err) { mlx5_core_dbg(dev, "cmd exec faile %d\n", err); return err; } - if (out.hdr.status) { - mlx5_core_dbg(dev, "status %d\n", out.hdr.status); - return mlx5_cmd_status_to_err(&out.hdr); + if (lout.hdr.status) { + mlx5_core_dbg(dev, "status %d\n", lout.hdr.status); + return mlx5_cmd_status_to_err(&lout.hdr); } - mr->key = mlx5_idx_to_mkey(be32_to_cpu(out.mkey) & 0xffffff) | key; - mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", be32_to_cpu(out.mkey), key, mr->key); + mr->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key; + mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", + be32_to_cpu(lout.mkey), key, mr->key); return err; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 7b12acf210f8..37b6ad1f9a1b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -57,10 +57,13 @@ struct mlx5_pages_req { }; struct fw_page { - struct rb_node rb_node; - u64 addr; - struct page *page; - u16 func_id; + struct rb_node rb_node; + u64 addr; + struct page *page; + u16 func_id; + unsigned long bitmask; + struct list_head list; + unsigned free_count; }; struct mlx5_query_pages_inbox { @@ -94,6 +97,11 @@ enum { MAX_RECLAIM_TIME_MSECS = 5000, }; +enum { + MLX5_MAX_RECLAIM_TIME_MILI = 5000, + MLX5_NUM_4K_IN_PAGE = PAGE_SIZE / 4096, +}; + static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id) { struct rb_root *root = &dev->priv.page_root; @@ -101,6 +109,7 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u struct rb_node *parent = NULL; struct fw_page *nfp; struct fw_page *tfp; + int i; while (*new) { parent = *new; @@ -113,25 +122,29 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u return -EEXIST; } - nfp = kmalloc(sizeof(*nfp), GFP_KERNEL); + nfp = kzalloc(sizeof(*nfp), GFP_KERNEL); if (!nfp) return -ENOMEM; nfp->addr = addr; nfp->page = page; nfp->func_id = func_id; + nfp->free_count = MLX5_NUM_4K_IN_PAGE; + for (i = 0; i < MLX5_NUM_4K_IN_PAGE; i++) + set_bit(i, &nfp->bitmask); rb_link_node(&nfp->rb_node, parent, new); rb_insert_color(&nfp->rb_node, root); + list_add(&nfp->list, &dev->priv.free_list); return 0; } -static struct page *remove_page(struct mlx5_core_dev *dev, u64 addr) +static struct fw_page *find_fw_page(struct mlx5_core_dev *dev, u64 addr) { struct rb_root *root = &dev->priv.page_root; struct rb_node *tmp = root->rb_node; - struct page *result = NULL; + struct fw_page *result = NULL; struct fw_page *tfp; while (tmp) { @@ -141,9 +154,7 @@ static struct page *remove_page(struct mlx5_core_dev *dev, u64 addr) } else if (tfp->addr > addr) { tmp = tmp->rb_right; } else { - rb_erase(&tfp->rb_node, root); - result = tfp->page; - kfree(tfp); + result = tfp; break; } } @@ -176,12 +187,98 @@ static int mlx5_cmd_query_pages(struct mlx5_core_dev *dev, u16 *func_id, return err; } +static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr) +{ + struct fw_page *fp; + unsigned n; + + if (list_empty(&dev->priv.free_list)) { + return -ENOMEM; + mlx5_core_warn(dev, "\n"); + } + + fp = list_entry(dev->priv.free_list.next, struct fw_page, list); + n = find_first_bit(&fp->bitmask, 8 * sizeof(fp->bitmask)); + if (n >= MLX5_NUM_4K_IN_PAGE) { + mlx5_core_warn(dev, "alloc 4k bug\n"); + return -ENOENT; + } + clear_bit(n, &fp->bitmask); + fp->free_count--; + if (!fp->free_count) + list_del(&fp->list); + + *addr = fp->addr + n * 4096; + + return 0; +} + +static void free_4k(struct mlx5_core_dev *dev, u64 addr) +{ + struct fw_page *fwp; + int n; + + fwp = find_fw_page(dev, addr & PAGE_MASK); + if (!fwp) { + mlx5_core_warn(dev, "page not found\n"); + return; + } + + n = (addr & ~PAGE_MASK) % 4096; + fwp->free_count++; + set_bit(n, &fwp->bitmask); + if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) { + rb_erase(&fwp->rb_node, &dev->priv.page_root); + if (fwp->free_count != 1) + list_del(&fwp->list); + dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); + __free_page(fwp->page); + kfree(fwp); + } else if (fwp->free_count == 1) { + list_add(&fwp->list, &dev->priv.free_list); + } +} + +static int alloc_system_page(struct mlx5_core_dev *dev, u16 func_id) +{ + struct page *page; + u64 addr; + int err; + + page = alloc_page(GFP_HIGHUSER); + if (!page) { + mlx5_core_warn(dev, "failed to allocate page\n"); + return -ENOMEM; + } + addr = dma_map_page(&dev->pdev->dev, page, 0, + PAGE_SIZE, DMA_BIDIRECTIONAL); + if (dma_mapping_error(&dev->pdev->dev, addr)) { + mlx5_core_warn(dev, "failed dma mapping page\n"); + err = -ENOMEM; + goto out_alloc; + } + err = insert_page(dev, addr, page, func_id); + if (err) { + mlx5_core_err(dev, "failed to track allocated page\n"); + goto out_mapping; + } + + return 0; + +out_mapping: + dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); + +out_alloc: + __free_page(page); + + return err; +} static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages, int notify_fail) { struct mlx5_manage_pages_inbox *in; struct mlx5_manage_pages_outbox out; - struct page *page; + struct mlx5_manage_pages_inbox *nin; int inlen; u64 addr; int err; @@ -196,27 +293,15 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages, memset(&out, 0, sizeof(out)); for (i = 0; i < npages; i++) { - page = alloc_page(GFP_HIGHUSER); - if (!page) { - err = -ENOMEM; - mlx5_core_warn(dev, "failed to allocate page\n"); - goto out_alloc; - } - addr = dma_map_page(&dev->pdev->dev, page, 0, - PAGE_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(&dev->pdev->dev, addr)) { - mlx5_core_warn(dev, "failed dma mapping page\n"); - __free_page(page); - err = -ENOMEM; - goto out_alloc; - } - err = insert_page(dev, addr, page, func_id); +retry: + err = alloc_4k(dev, &addr); if (err) { - mlx5_core_err(dev, "failed to track allocated page\n"); - dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); - __free_page(page); - err = -ENOMEM; - goto out_alloc; + if (err == -ENOMEM) + err = alloc_system_page(dev, func_id); + if (err) + goto out_4k; + + goto retry; } in->pas[i] = cpu_to_be64(addr); } @@ -226,7 +311,6 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages, in->func_id = cpu_to_be16(func_id); in->num_entries = cpu_to_be32(npages); err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out)); - mlx5_core_dbg(dev, "err %d\n", err); if (err) { mlx5_core_warn(dev, "func_id 0x%x, npages %d, err %d\n", func_id, npages, err); goto out_alloc; @@ -247,25 +331,22 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages, out_alloc: if (notify_fail) { - memset(in, 0, inlen); - memset(&out, 0, sizeof(out)); - in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES); - in->hdr.opmod = cpu_to_be16(MLX5_PAGES_CANT_GIVE); - if (mlx5_cmd_exec(dev, in, sizeof(*in), &out, sizeof(out))) - mlx5_core_warn(dev, "\n"); - } - for (i--; i >= 0; i--) { - addr = be64_to_cpu(in->pas[i]); - page = remove_page(dev, addr); - if (!page) { - mlx5_core_err(dev, "BUG: can't remove page at addr 0x%llx\n", - addr); - continue; + nin = kzalloc(sizeof(*nin), GFP_KERNEL); + if (!nin) { + mlx5_core_warn(dev, "allocation failed\n"); + goto out_4k; } - dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); - __free_page(page); + memset(&out, 0, sizeof(out)); + nin->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES); + nin->hdr.opmod = cpu_to_be16(MLX5_PAGES_CANT_GIVE); + if (mlx5_cmd_exec(dev, nin, sizeof(*nin), &out, sizeof(out))) + mlx5_core_warn(dev, "page notify failed\n"); + kfree(nin); } +out_4k: + for (i--; i >= 0; i--) + free_4k(dev, be64_to_cpu(in->pas[i])); out_free: mlx5_vfree(in); return err; @@ -276,7 +357,6 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages, { struct mlx5_manage_pages_inbox in; struct mlx5_manage_pages_outbox *out; - struct page *page; int num_claimed; int outlen; u64 addr; @@ -315,13 +395,7 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages, for (i = 0; i < num_claimed; i++) { addr = be64_to_cpu(out->pas[i]); - page = remove_page(dev, addr); - if (!page) { - mlx5_core_warn(dev, "FW reported unknown DMA address 0x%llx\n", addr); - } else { - dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL); - __free_page(page); - } + free_4k(dev, addr); } out_free: @@ -381,14 +455,19 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot) return give_pages(dev, func_id, npages, 0); } +enum { + MLX5_BLKS_FOR_RECLAIM_PAGES = 12 +}; + static int optimal_reclaimed_pages(void) { struct mlx5_cmd_prot_block *block; struct mlx5_cmd_layout *lay; int ret; - ret = (sizeof(lay->in) + sizeof(block->data) - - sizeof(struct mlx5_manage_pages_outbox)) / 8; + ret = (sizeof(lay->out) + MLX5_BLKS_FOR_RECLAIM_PAGES * sizeof(block->data) - + sizeof(struct mlx5_manage_pages_outbox)) / + FIELD_SIZEOF(struct mlx5_manage_pages_outbox, pas[0]); return ret; } @@ -427,6 +506,7 @@ int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev) void mlx5_pagealloc_init(struct mlx5_core_dev *dev) { dev->priv.page_root = RB_ROOT; + INIT_LIST_HEAD(&dev->priv.free_list); } void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev) diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c index 0951f7aca1ef..822616e3c375 100644 --- a/drivers/net/ethernet/micrel/ks8842.c +++ b/drivers/net/ethernet/micrel/ks8842.c @@ -459,8 +459,7 @@ static int ks8842_tx_frame_dma(struct sk_buff *skb, struct net_device *netdev) sg_dma_len(&ctl->sg) += 4 - sg_dma_len(&ctl->sg) % 4; ctl->adesc = dmaengine_prep_slave_sg(ctl->chan, - &ctl->sg, 1, DMA_MEM_TO_DEV, - DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP); + &ctl->sg, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT); if (!ctl->adesc) return NETDEV_TX_BUSY; @@ -571,8 +570,7 @@ static int __ks8842_start_new_rx_dma(struct net_device *netdev) sg_dma_len(sg) = DMA_BUFFER_SIZE; ctl->adesc = dmaengine_prep_slave_sg(ctl->chan, - sg, 1, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP); + sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); if (!ctl->adesc) goto out; diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index 5a0f04c2c813..27ffe0ebf0a6 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -245,16 +245,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) /* Get ieee1588's dev information */ pdev = adapter->ptp_pdev; - switch (cfg.tx_type) { - case HWTSTAMP_TX_OFF: - adapter->hwts_tx_en = 0; - break; - case HWTSTAMP_TX_ON: - adapter->hwts_tx_en = 1; - break; - default: + if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } switch (cfg.rx_filter) { case HWTSTAMP_FILTER_NONE: @@ -284,6 +276,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) return -ERANGE; } + adapter->hwts_tx_en = cfg.tx_type == HWTSTAMP_TX_ON; + /* Clear out any old time stamps. */ pch_ch_event_write(pdev, TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 8d4ccd35a016..8a7a23a84ac5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -435,16 +435,9 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) if (config.flags) return -EINVAL; - switch (config.tx_type) { - case HWTSTAMP_TX_OFF: - priv->hwts_tx_en = 0; - break; - case HWTSTAMP_TX_ON: - priv->hwts_tx_en = 1; - break; - default: + if (config.tx_type != HWTSTAMP_TX_OFF && + config.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } if (priv->adv_ts) { switch (config.rx_filter) { @@ -576,6 +569,7 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) } } priv->hwts_rx_en = ((config.rx_filter == HWTSTAMP_FILTER_NONE) ? 0 : 1); + priv->hwts_tx_en = config.tx_type == HWTSTAMP_TX_ON; if (!priv->hwts_tx_en && !priv->hwts_rx_en) priv->hw->ptp->config_hw_tstamping(priv->ioaddr, 0); diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 90d41d26ec6d..7536a4c01293 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -967,14 +967,19 @@ static inline void cpsw_add_dual_emac_def_ale_entries( priv->host_port, ALE_VLAN, slave->port_vlan); } -static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) +static void soft_reset_slave(struct cpsw_slave *slave) { char name[32]; - u32 slave_port; - - sprintf(name, "slave-%d", slave->slave_num); + snprintf(name, sizeof(name), "slave-%d", slave->slave_num); soft_reset(name, &slave->sliver->soft_reset); +} + +static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) +{ + u32 slave_port; + + soft_reset_slave(slave); /* setup priority mapping */ __raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map); @@ -1323,6 +1328,10 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) struct cpts *cpts = priv->cpts; struct hwtstamp_config cfg; + if (priv->version != CPSW_VERSION_1 && + priv->version != CPSW_VERSION_2) + return -EOPNOTSUPP; + if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) return -EFAULT; @@ -1330,16 +1339,8 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) if (cfg.flags) return -EINVAL; - switch (cfg.tx_type) { - case HWTSTAMP_TX_OFF: - cpts->tx_enable = 0; - break; - case HWTSTAMP_TX_ON: - cpts->tx_enable = 1; - break; - default: + if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } switch (cfg.rx_filter) { case HWTSTAMP_FILTER_NONE: @@ -1366,6 +1367,8 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) return -ERANGE; } + cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON; + switch (priv->version) { case CPSW_VERSION_1: cpsw_hwtstamp_v1(priv); @@ -1374,7 +1377,7 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) cpsw_hwtstamp_v2(priv); break; default: - return -ENOTSUPP; + WARN_ON(1); } return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; @@ -2173,8 +2176,9 @@ static int cpsw_suspend(struct device *dev) if (netif_running(ndev)) cpsw_ndo_stop(ndev); - soft_reset("sliver 0", &priv->slaves[0].sliver->soft_reset); - soft_reset("sliver 1", &priv->slaves[1].sliver->soft_reset); + + for_each_slave(priv, soft_reset_slave); + pm_runtime_put_sync(&pdev->dev); /* Select sleep pin state */ diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c index e78802e75ea6..bcc224a83734 100644 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c @@ -389,16 +389,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) ch = PORT2CHANNEL(port); regs = (struct ixp46x_ts_regs __iomem *) IXP4XX_TIMESYNC_BASE_VIRT; - switch (cfg.tx_type) { - case HWTSTAMP_TX_OFF: - port->hwts_tx_en = 0; - break; - case HWTSTAMP_TX_ON: - port->hwts_tx_en = 1; - break; - default: + if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) return -ERANGE; - } switch (cfg.rx_filter) { case HWTSTAMP_FILTER_NONE: @@ -416,6 +408,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) return -ERANGE; } + port->hwts_tx_en = cfg.tx_type == HWTSTAMP_TX_ON; + /* Clear out any old time stamps. */ __raw_writel(TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED, ®s->channel[ch].ch_event); diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 9dccb1edfd2a..dc76670c2f2a 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -628,6 +628,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, const struct iovec *iv, unsigned long total_len, size_t count, int noblock) { + int good_linear = SKB_MAX_HEAD(NET_IP_ALIGN); struct sk_buff *skb; struct macvlan_dev *vlan; unsigned long len = total_len; @@ -670,6 +671,8 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, if (m && m->msg_control && sock_flag(&q->sk, SOCK_ZEROCOPY)) { copylen = vnet_hdr.hdr_len ? vnet_hdr.hdr_len : GOODCOPY_LEN; + if (copylen > good_linear) + copylen = good_linear; linear = copylen; if (iov_pages(iv, vnet_hdr_len + copylen, count) <= MAX_SKB_FRAGS) @@ -678,7 +681,10 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, if (!zerocopy) { copylen = len; - linear = vnet_hdr.hdr_len; + if (vnet_hdr.hdr_len > good_linear) + linear = good_linear; + else + linear = vnet_hdr.hdr_len; } skb = macvtap_alloc_skb(&q->sk, NET_IP_ALIGN, copylen, diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 74630e94fa3b..d6447b3f7409 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -697,7 +697,7 @@ static int genphy_config_advert(struct phy_device *phydev) * to the values in phydev. Assumes that the values are valid. * Please see phy_sanitize_settings(). */ -static int genphy_setup_forced(struct phy_device *phydev) +int genphy_setup_forced(struct phy_device *phydev) { int err; int ctl = 0; @@ -716,7 +716,7 @@ static int genphy_setup_forced(struct phy_device *phydev) return err; } - +EXPORT_SYMBOL(genphy_setup_forced); /** * genphy_restart_aneg - Enable and Restart Autonegotiation diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c index 69b482bce7d2..508e4359338b 100644 --- a/drivers/net/phy/vitesse.c +++ b/drivers/net/phy/vitesse.c @@ -3,7 +3,7 @@ * * Author: Kriston Carson * - * Copyright (c) 2005, 2009 Freescale Semiconductor, Inc. + * Copyright (c) 2005, 2009, 2011 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -18,6 +18,11 @@ #include <linux/ethtool.h> #include <linux/phy.h> +/* Vitesse Extended Page Magic Register(s) */ +#define MII_VSC82X4_EXT_PAGE_16E 0x10 +#define MII_VSC82X4_EXT_PAGE_17E 0x11 +#define MII_VSC82X4_EXT_PAGE_18E 0x12 + /* Vitesse Extended Control Register 1 */ #define MII_VSC8244_EXT_CON1 0x17 #define MII_VSC8244_EXTCON1_INIT 0x0000 @@ -54,7 +59,13 @@ #define MII_VSC8221_AUXCONSTAT_INIT 0x0004 /* need to set this bit? */ #define MII_VSC8221_AUXCONSTAT_RESERVED 0x0004 +/* Vitesse Extended Page Access Register */ +#define MII_VSC82X4_EXT_PAGE_ACCESS 0x1f + +#define PHY_ID_VSC8234 0x000fc620 #define PHY_ID_VSC8244 0x000fc6c0 +#define PHY_ID_VSC8574 0x000704a0 +#define PHY_ID_VSC8662 0x00070660 #define PHY_ID_VSC8221 0x000fc550 #define PHY_ID_VSC8211 0x000fc4b0 @@ -118,7 +129,9 @@ static int vsc82xx_config_intr(struct phy_device *phydev) if (phydev->interrupts == PHY_INTERRUPT_ENABLED) err = phy_write(phydev, MII_VSC8244_IMASK, - phydev->drv->phy_id == PHY_ID_VSC8244 ? + (phydev->drv->phy_id == PHY_ID_VSC8234 || + phydev->drv->phy_id == PHY_ID_VSC8244 || + phydev->drv->phy_id == PHY_ID_VSC8574) ? MII_VSC8244_IMASK_MASK : MII_VSC8221_IMASK_MASK); else { @@ -149,21 +162,114 @@ static int vsc8221_config_init(struct phy_device *phydev) */ } -/* Vitesse 824x */ +/* vsc82x4_config_autocross_enable - Enable auto MDI/MDI-X for forced links + * @phydev: target phy_device struct + * + * Enable auto MDI/MDI-X when in 10/100 forced link speeds by writing + * special values in the VSC8234/VSC8244 extended reserved registers + */ +static int vsc82x4_config_autocross_enable(struct phy_device *phydev) +{ + int ret; + + if (phydev->autoneg == AUTONEG_ENABLE || phydev->speed > SPEED_100) + return 0; + + /* map extended registers set 0x10 - 0x1e */ + ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x52b5); + if (ret >= 0) + ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_18E, 0x0012); + if (ret >= 0) + ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_17E, 0x2803); + if (ret >= 0) + ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_16E, 0x87fa); + /* map standard registers set 0x10 - 0x1e */ + if (ret >= 0) + ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000); + else + phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000); + + return ret; +} + +/* vsc82x4_config_aneg - restart auto-negotiation or write BMCR + * @phydev: target phy_device struct + * + * Description: If auto-negotiation is enabled, we configure the + * advertising, and then restart auto-negotiation. If it is not + * enabled, then we write the BMCR and also start the auto + * MDI/MDI-X feature + */ +static int vsc82x4_config_aneg(struct phy_device *phydev) +{ + int ret; + + /* Enable auto MDI/MDI-X when in 10/100 forced link speeds by + * writing special values in the VSC8234 extended reserved registers + */ + if (phydev->autoneg != AUTONEG_ENABLE && phydev->speed <= SPEED_100) { + ret = genphy_setup_forced(phydev); + + if (ret < 0) /* error */ + return ret; + + return vsc82x4_config_autocross_enable(phydev); + } + + return genphy_config_aneg(phydev); +} + +/* Vitesse 82xx */ static struct phy_driver vsc82xx_driver[] = { { + .phy_id = PHY_ID_VSC8234, + .name = "Vitesse VSC8234", + .phy_id_mask = 0x000ffff0, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = &vsc824x_config_init, + .config_aneg = &vsc82x4_config_aneg, + .read_status = &genphy_read_status, + .ack_interrupt = &vsc824x_ack_interrupt, + .config_intr = &vsc82xx_config_intr, + .driver = { .owner = THIS_MODULE,}, +}, { .phy_id = PHY_ID_VSC8244, .name = "Vitesse VSC8244", .phy_id_mask = 0x000fffc0, .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .config_init = &vsc824x_config_init, - .config_aneg = &genphy_config_aneg, + .config_aneg = &vsc82x4_config_aneg, .read_status = &genphy_read_status, .ack_interrupt = &vsc824x_ack_interrupt, .config_intr = &vsc82xx_config_intr, .driver = { .owner = THIS_MODULE,}, }, { + .phy_id = PHY_ID_VSC8574, + .name = "Vitesse VSC8574", + .phy_id_mask = 0x000ffff0, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = &vsc824x_config_init, + .config_aneg = &vsc82x4_config_aneg, + .read_status = &genphy_read_status, + .ack_interrupt = &vsc824x_ack_interrupt, + .config_intr = &vsc82xx_config_intr, + .driver = { .owner = THIS_MODULE,}, +}, { + .phy_id = PHY_ID_VSC8662, + .name = "Vitesse VSC8662", + .phy_id_mask = 0x000ffff0, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = &vsc824x_config_init, + .config_aneg = &vsc82x4_config_aneg, + .read_status = &genphy_read_status, + .ack_interrupt = &vsc824x_ack_interrupt, + .config_intr = &vsc82xx_config_intr, + .driver = { .owner = THIS_MODULE,}, +}, { /* Vitesse 8221 */ .phy_id = PHY_ID_VSC8221, .phy_id_mask = 0x000ffff0, @@ -207,7 +313,10 @@ module_init(vsc82xx_init); module_exit(vsc82xx_exit); static struct mdio_device_id __maybe_unused vitesse_tbl[] = { + { PHY_ID_VSC8234, 0x000ffff0 }, { PHY_ID_VSC8244, 0x000fffc0 }, + { PHY_ID_VSC8574, 0x000ffff0 }, + { PHY_ID_VSC8662, 0x000ffff0 }, { PHY_ID_VSC8221, 0x000ffff0 }, { PHY_ID_VSC8211, 0x000ffff0 }, { } diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 5f66e30d9823..82ee6ed954cb 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -979,8 +979,6 @@ static int pppoe_recvmsg(struct kiocb *iocb, struct socket *sock, if (error < 0) goto end; - m->msg_namelen = 0; - if (skb) { total_len = min_t(size_t, total_len, skb->len); error = skb_copy_datagram_iovec(skb, 0, m->msg_iov, total_len); diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 6574eb8766f9..34b0de09d881 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2650,7 +2650,7 @@ static int team_nl_cmd_port_list_get(struct sk_buff *skb, return err; } -static struct genl_ops team_nl_ops[] = { +static const struct genl_ops team_nl_ops[] = { { .cmd = TEAM_CMD_NOOP, .doit = team_nl_cmd_noop, @@ -2676,15 +2676,15 @@ static struct genl_ops team_nl_ops[] = { }, }; -static struct genl_multicast_group team_change_event_mcgrp = { - .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, +static const struct genl_multicast_group team_nl_mcgrps[] = { + { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, }; static int team_nl_send_multicast(struct sk_buff *skb, struct team *team, u32 portid) { - return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, - team_change_event_mcgrp.id, GFP_KERNEL); + return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), + skb, 0, 0, GFP_KERNEL); } static int team_nl_send_event_options_get(struct team *team, @@ -2703,23 +2703,8 @@ static int team_nl_send_event_port_get(struct team *team, static int team_nl_init(void) { - int err; - - err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, - ARRAY_SIZE(team_nl_ops)); - if (err) - return err; - - err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); - if (err) - goto err_change_event_grp_reg; - - return 0; - -err_change_event_grp_reg: - genl_unregister_family(&team_nl_family); - - return err; + return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, + team_nl_mcgrps); } static void team_nl_fini(void) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 7cb105c103fe..782e38bfc1ee 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -981,6 +981,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, struct sk_buff *skb; size_t len = total_len, align = NET_SKB_PAD, linear; struct virtio_net_hdr gso = { 0 }; + int good_linear; int offset = 0; int copylen; bool zerocopy = false; @@ -1021,12 +1022,16 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, return -EINVAL; } + good_linear = SKB_MAX_HEAD(align); + if (msg_control) { /* There are 256 bytes to be copied in skb, so there is * enough room for skb expand head in case it is used. * The rest of the buffer is mapped from userspace. */ copylen = gso.hdr_len ? gso.hdr_len : GOODCOPY_LEN; + if (copylen > good_linear) + copylen = good_linear; linear = copylen; if (iov_pages(iv, offset + copylen, count) <= MAX_SKB_FRAGS) zerocopy = true; @@ -1034,7 +1039,10 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, if (!zerocopy) { copylen = len; - linear = gso.hdr_len; + if (gso.hdr_len > good_linear) + linear = good_linear; + else + linear = gso.hdr_len; } skb = tun_alloc_skb(tfile, align, copylen, linear, noblock); diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index f74786aa37be..e15ec2b12035 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -66,7 +66,7 @@ static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx); static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer); static struct usb_driver cdc_ncm_driver; -static u8 cdc_ncm_setup(struct usbnet *dev) +static int cdc_ncm_setup(struct usbnet *dev) { struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0]; struct usb_cdc_ncm_ntb_parameters ncm_parm; diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index f3fce412c0c1..51073721e224 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -24,7 +24,7 @@ #include <linux/ipv6.h> /* Version Information */ -#define DRIVER_VERSION "v1.01.0 (2013/08/12)" +#define DRIVER_VERSION "v1.02.0 (2013/10/28)" #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" #define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters" #define MODULENAME "r8152" @@ -307,22 +307,22 @@ enum rtl8152_flags { #define MCU_TYPE_USB 0x0000 struct rx_desc { - u32 opts1; + __le32 opts1; #define RX_LEN_MASK 0x7fff - u32 opts2; - u32 opts3; - u32 opts4; - u32 opts5; - u32 opts6; + __le32 opts2; + __le32 opts3; + __le32 opts4; + __le32 opts5; + __le32 opts6; }; struct tx_desc { - u32 opts1; + __le32 opts1; #define TX_FS (1 << 31) /* First segment of a packet */ #define TX_LS (1 << 30) /* Final segment of a packet */ #define TX_LEN_MASK 0x3ffff - u32 opts2; + __le32 opts2; #define UDP_CS (1 << 31) /* Calculate UDP/IP checksum */ #define TCP_CS (1 << 30) /* Calculate TCP/IP checksum */ #define IPV4_CS (1 << 29) /* Calculate IPv4 checksum */ @@ -365,6 +365,7 @@ struct r8152 { struct mii_if_info mii; int intr_interval; u32 msg_enable; + u32 tx_qlen; u16 ocp_base; u8 *intr_buff; u8 version; @@ -876,7 +877,7 @@ static void write_bulk_callback(struct urb *urb) static void intr_callback(struct urb *urb) { struct r8152 *tp; - __u16 *d; + __le16 *d; int status = urb->status; int res; @@ -1136,14 +1137,14 @@ r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, struct sk_buff *skb) static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) { - u32 remain; + int remain; u8 *tx_data; tx_data = agg->head; agg->skb_num = agg->skb_len = 0; - remain = rx_buf_sz - sizeof(struct tx_desc); + remain = rx_buf_sz; - while (remain >= ETH_ZLEN) { + while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) { struct tx_desc *tx_desc; struct sk_buff *skb; unsigned int len; @@ -1152,12 +1153,14 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) if (!skb) break; + remain -= sizeof(*tx_desc); len = skb->len; if (remain < len) { skb_queue_head(&tp->tx_queue, skb); break; } + tx_data = tx_agg_align(tx_data); tx_desc = (struct tx_desc *)tx_data; tx_data += sizeof(*tx_desc); @@ -1167,11 +1170,18 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) agg->skb_len += len; dev_kfree_skb_any(skb); - tx_data = tx_agg_align(tx_data + len); - remain = rx_buf_sz - sizeof(*tx_desc) - - (u32)((void *)tx_data - agg->head); + tx_data += len; + remain = rx_buf_sz - (int)(tx_agg_align(tx_data) - agg->head); } + netif_tx_lock(tp->netdev); + + if (netif_queue_stopped(tp->netdev) && + skb_queue_len(&tp->tx_queue) < tp->tx_qlen) + netif_wake_queue(tp->netdev); + + netif_tx_unlock(tp->netdev); + usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2), agg->head, (int)(tx_data - (u8 *)agg->head), (usb_complete_t)write_bulk_callback, agg); @@ -1188,7 +1198,6 @@ static void rx_bottom(struct r8152 *tp) list_for_each_safe(cursor, next, &tp->rx_done) { struct rx_desc *rx_desc; struct rx_agg *agg; - unsigned pkt_len; int len_used = 0; struct urb *urb; u8 *rx_data; @@ -1204,17 +1213,22 @@ static void rx_bottom(struct r8152 *tp) rx_desc = agg->head; rx_data = agg->head; - pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; - len_used += sizeof(struct rx_desc) + pkt_len; + len_used += sizeof(struct rx_desc); - while (urb->actual_length >= len_used) { + while (urb->actual_length > len_used) { struct net_device *netdev = tp->netdev; struct net_device_stats *stats; + unsigned int pkt_len; struct sk_buff *skb; + pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; if (pkt_len < ETH_ZLEN) break; + len_used += pkt_len; + if (urb->actual_length < len_used) + break; + stats = rtl8152_get_stats(netdev); pkt_len -= 4; /* CRC */ @@ -1234,9 +1248,8 @@ static void rx_bottom(struct r8152 *tp) rx_data = rx_agg_align(rx_data + pkt_len + 4); rx_desc = (struct rx_desc *)rx_data; - pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK; len_used = (int)(rx_data - (u8 *)agg->head); - len_used += sizeof(struct rx_desc) + pkt_len; + len_used += sizeof(struct rx_desc); } submit: @@ -1384,53 +1397,17 @@ static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb, struct net_device *netdev) { struct r8152 *tp = netdev_priv(netdev); - struct net_device_stats *stats = rtl8152_get_stats(netdev); - unsigned long flags; - struct tx_agg *agg = NULL; - struct tx_desc *tx_desc; - unsigned int len; - u8 *tx_data; - int res; skb_tx_timestamp(skb); - /* If tx_queue is not empty, it means at least one previous packt */ - /* is waiting for sending. Don't send current one before it. */ - if (skb_queue_empty(&tp->tx_queue)) - agg = r8152_get_tx_agg(tp); - - if (!agg) { - skb_queue_tail(&tp->tx_queue, skb); - return NETDEV_TX_OK; - } + skb_queue_tail(&tp->tx_queue, skb); - tx_desc = (struct tx_desc *)agg->head; - tx_data = agg->head + sizeof(*tx_desc); - agg->skb_num = agg->skb_len = 0; + if (list_empty(&tp->tx_free) && + skb_queue_len(&tp->tx_queue) > tp->tx_qlen) + netif_stop_queue(netdev); - len = skb->len; - r8152_tx_csum(tp, tx_desc, skb); - memcpy(tx_data, skb->data, len); - dev_kfree_skb_any(skb); - agg->skb_num++; - agg->skb_len += len; - usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2), - agg->head, len + sizeof(*tx_desc), - (usb_complete_t)write_bulk_callback, agg); - res = usb_submit_urb(agg->urb, GFP_ATOMIC); - if (res) { - /* Can we get/handle EPIPE here? */ - if (res == -ENODEV) { - netif_device_detach(tp->netdev); - } else { - netif_warn(tp, tx_err, netdev, - "failed tx_urb %d\n", res); - stats->tx_dropped++; - spin_lock_irqsave(&tp->tx_lock, flags); - list_add_tail(&agg->list, &tp->tx_free); - spin_unlock_irqrestore(&tp->tx_lock, flags); - } - } + if (!list_empty(&tp->tx_free)) + tasklet_schedule(&tp->tl); return NETDEV_TX_OK; } @@ -1459,6 +1436,14 @@ static void rtl8152_nic_reset(struct r8152 *tp) } } +static void set_tx_qlen(struct r8152 *tp) +{ + struct net_device *netdev = tp->netdev; + + tp->tx_qlen = rx_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN + + sizeof(struct tx_desc)); +} + static inline u8 rtl8152_get_speed(struct r8152 *tp) { return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS); @@ -1470,6 +1455,7 @@ static int rtl8152_enable(struct r8152 *tp) int i, ret; u8 speed; + set_tx_qlen(tp); speed = rtl8152_get_speed(tp); if (speed & _10bps) { ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR); diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 90a429b7ebad..8494bb53ebdc 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -204,9 +204,6 @@ static void intr_complete (struct urb *urb) break; } - if (!netif_running (dev->net)) - return; - status = usb_submit_urb (urb, GFP_ATOMIC); if (status != 0) netif_err(dev, timer, dev->net, diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index cdc7c90a6a9e..7bab4de658a9 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -36,7 +36,10 @@ module_param(csum, bool, 0444); module_param(gso, bool, 0444); /* FIXME: MTU in config. */ -#define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN) +#define GOOD_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN) +#define MERGE_BUFFER_LEN (ALIGN(GOOD_PACKET_LEN + \ + sizeof(struct virtio_net_hdr_mrg_rxbuf), \ + L1_CACHE_BYTES)) #define GOOD_COPY_LEN 128 #define VIRTNET_DRIVER_VERSION "1.0.0" @@ -314,10 +317,10 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) head_skb->dev->stats.rx_length_errors++; return -EINVAL; } - if (unlikely(len > MAX_PACKET_LEN)) { + if (unlikely(len > MERGE_BUFFER_LEN)) { pr_debug("%s: rx error: merge buffer too long\n", head_skb->dev->name); - len = MAX_PACKET_LEN; + len = MERGE_BUFFER_LEN; } if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) { struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC); @@ -336,18 +339,17 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb) if (curr_skb != head_skb) { head_skb->data_len += len; head_skb->len += len; - head_skb->truesize += MAX_PACKET_LEN; + head_skb->truesize += MERGE_BUFFER_LEN; } page = virt_to_head_page(buf); offset = buf - (char *)page_address(page); if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) { put_page(page); skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1, - len, MAX_PACKET_LEN); + len, MERGE_BUFFER_LEN); } else { skb_add_rx_frag(curr_skb, num_skb_frags, page, - offset, len, - MAX_PACKET_LEN); + offset, len, MERGE_BUFFER_LEN); } --rq->num; } @@ -383,7 +385,7 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len) struct page *page = virt_to_head_page(buf); skb = page_to_skb(rq, page, (char *)buf - (char *)page_address(page), - len, MAX_PACKET_LEN); + len, MERGE_BUFFER_LEN); if (unlikely(!skb)) { dev->stats.rx_dropped++; put_page(page); @@ -471,11 +473,11 @@ static int add_recvbuf_small(struct receive_queue *rq, gfp_t gfp) struct skb_vnet_hdr *hdr; int err; - skb = __netdev_alloc_skb_ip_align(vi->dev, MAX_PACKET_LEN, gfp); + skb = __netdev_alloc_skb_ip_align(vi->dev, GOOD_PACKET_LEN, gfp); if (unlikely(!skb)) return -ENOMEM; - skb_put(skb, MAX_PACKET_LEN); + skb_put(skb, GOOD_PACKET_LEN); hdr = skb_vnet_hdr(skb); sg_set_buf(rq->sg, &hdr->hdr, sizeof hdr->hdr); @@ -542,20 +544,20 @@ static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp) int err; if (gfp & __GFP_WAIT) { - if (skb_page_frag_refill(MAX_PACKET_LEN, &vi->alloc_frag, + if (skb_page_frag_refill(MERGE_BUFFER_LEN, &vi->alloc_frag, gfp)) { buf = (char *)page_address(vi->alloc_frag.page) + vi->alloc_frag.offset; get_page(vi->alloc_frag.page); - vi->alloc_frag.offset += MAX_PACKET_LEN; + vi->alloc_frag.offset += MERGE_BUFFER_LEN; } } else { - buf = netdev_alloc_frag(MAX_PACKET_LEN); + buf = netdev_alloc_frag(MERGE_BUFFER_LEN); } if (!buf) return -ENOMEM; - sg_init_one(rq->sg, buf, MAX_PACKET_LEN); + sg_init_one(rq->sg, buf, MERGE_BUFFER_LEN); err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp); if (err < 0) put_page(virt_to_head_page(buf)); @@ -1619,8 +1621,8 @@ static int virtnet_probe(struct virtio_device *vdev) if (err) goto free_stats; - netif_set_real_num_tx_queues(dev, 1); - netif_set_real_num_rx_queues(dev, 1); + netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs); + netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs); err = register_netdev(dev); if (err) { diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c index b07f164d65cf..20e49095db2a 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c @@ -187,17 +187,17 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) INIT_INI_ARRAY(&ah->iniCckfirJapan2484, ar9485_1_1_baseband_core_txfir_coeff_japan_2484); - /* Load PCIE SERDES settings from INI */ - - /* Awake Setting */ - - INIT_INI_ARRAY(&ah->iniPcieSerdes, - ar9485_1_1_pcie_phy_clkreq_disable_L1); - - /* Sleep Setting */ - - INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower, - ar9485_1_1_pcie_phy_clkreq_disable_L1); + if (ah->config.no_pll_pwrsave) { + INIT_INI_ARRAY(&ah->iniPcieSerdes, + ar9485_1_1_pcie_phy_clkreq_disable_L1); + INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower, + ar9485_1_1_pcie_phy_clkreq_disable_L1); + } else { + INIT_INI_ARRAY(&ah->iniPcieSerdes, + ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1); + INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower, + ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1); + } } else if (AR_SREV_9462_21(ah)) { INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE], ar9462_2p1_mac_core); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 11f53589a3f3..d39b79f5e841 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -701,6 +701,54 @@ static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah, return ret; } +static void ar9003_doubler_fix(struct ath_hw *ah) +{ + if (AR_SREV_9300(ah) || AR_SREV_9580(ah) || AR_SREV_9550(ah)) { + REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); + REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); + REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0); + + udelay(200); + + REG_CLR_BIT(ah, AR_PHY_65NM_CH0_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); + REG_CLR_BIT(ah, AR_PHY_65NM_CH1_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); + REG_CLR_BIT(ah, AR_PHY_65NM_CH2_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK); + + udelay(1); + + REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); + REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); + REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX2, + AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1); + + udelay(200); + + REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH12, + AR_PHY_65NM_CH0_SYNTH12_VREFMUL3, 0xf); + + REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, 0, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); + REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, 0, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); + REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, 0, + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S | + 1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S); + } +} + static int ar9003_hw_process_ini(struct ath_hw *ah, struct ath9k_channel *chan) { @@ -726,6 +774,8 @@ static int ar9003_hw_process_ini(struct ath_hw *ah, modesIndex); } + ar9003_doubler_fix(ah); + /* * RXGAIN initvals. */ diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h index fca624322dc8..2af667beb273 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h @@ -656,13 +656,24 @@ #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x00000001 : 0x00000002) #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT_S ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0 : 1) #define AR_PHY_65NM_CH0_SYNTH7 0x16098 +#define AR_PHY_65NM_CH0_SYNTH12 0x160ac #define AR_PHY_65NM_CH0_BIAS1 0x160c0 #define AR_PHY_65NM_CH0_BIAS2 0x160c4 #define AR_PHY_65NM_CH0_BIAS4 0x160cc +#define AR_PHY_65NM_CH0_RXTX2 0x16104 +#define AR_PHY_65NM_CH1_RXTX2 0x16504 +#define AR_PHY_65NM_CH2_RXTX2 0x16904 #define AR_PHY_65NM_CH0_RXTX4 0x1610c #define AR_PHY_65NM_CH1_RXTX4 0x1650c #define AR_PHY_65NM_CH2_RXTX4 0x1690c +#define AR_PHY_65NM_CH0_SYNTH12_VREFMUL3 0x00780000 +#define AR_PHY_65NM_CH0_SYNTH12_VREFMUL3_S 19 +#define AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK 0x00000004 +#define AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S 2 +#define AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK 0x00000008 +#define AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S 3 + #define AR_CH0_TOP (AR_SREV_9300(ah) ? 0x16288 : \ (((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x1628c : 0x16280))) #define AR_CH0_TOP_XPABIASLVL (AR_SREV_9550(ah) ? 0x3c0 : 0x300) diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h index 4dbc294df7e3..57fc5f459d0a 100644 --- a/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h @@ -361,7 +361,7 @@ static const u32 ar9462_2p1_baseband_postamble[][5] = { {0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32365a5e}, {0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c}, - {0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce}, + {0x00009e20, 0x000003a5, 0x000003a5, 0x000003a5, 0x000003a5}, {0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021}, {0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282}, {0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27}, @@ -400,7 +400,7 @@ static const u32 ar9462_2p1_baseband_postamble[][5] = { {0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000}, {0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, {0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c}, - {0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce}, + {0x0000ae20, 0x000001a6, 0x000001a6, 0x000001aa, 0x000001aa}, {0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550}, }; @@ -472,7 +472,7 @@ static const u32 ar9462_2p1_radio_postamble[][5] = { static const u32 ar9462_2p1_soc_preamble[][2] = { /* Addr allmodes */ - {0x000040a4, 0x00a0c1c9}, + {0x000040a4, 0x00a0c9c9}, {0x00007020, 0x00000000}, {0x00007034, 0x00000002}, {0x00007038, 0x000004c2}, diff --git a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h index 6f899c692647..7c1845221e1c 100644 --- a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h @@ -32,13 +32,6 @@ static const u32 ar9485_1_1_mac_postamble[][5] = { {0x00008318, 0x00003e80, 0x00007d00, 0x00006880, 0x00003440}, }; -static const u32 ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1[][2] = { - /* Addr allmodes */ - {0x00018c00, 0x18012e5e}, - {0x00018c04, 0x000801d8}, - {0x00018c08, 0x0000080c}, -}; - static const u32 ar9485Common_wo_xlna_rx_gain_1_1[][2] = { /* Addr allmodes */ {0x00009e00, 0x037216a0}, @@ -1101,20 +1094,6 @@ static const u32 ar9485_common_rx_gain_1_1[][2] = { {0x0000a1fc, 0x00000296}, }; -static const u32 ar9485_1_1_pcie_phy_pll_on_clkreq_enable_L1[][2] = { - /* Addr allmodes */ - {0x00018c00, 0x18052e5e}, - {0x00018c04, 0x000801d8}, - {0x00018c08, 0x0000080c}, -}; - -static const u32 ar9485_1_1_pcie_phy_clkreq_enable_L1[][2] = { - /* Addr allmodes */ - {0x00018c00, 0x18053e5e}, - {0x00018c04, 0x000801d8}, - {0x00018c08, 0x0000080c}, -}; - static const u32 ar9485_1_1_soc_preamble[][2] = { /* Addr allmodes */ {0x00004014, 0xba280400}, @@ -1173,13 +1152,6 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = { {0x0000be18, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, }; -static const u32 ar9485_1_1_pcie_phy_clkreq_disable_L1[][2] = { - /* Addr allmodes */ - {0x00018c00, 0x18013e5e}, - {0x00018c04, 0x000801d8}, - {0x00018c08, 0x0000080c}, -}; - static const u32 ar9485_1_1_radio_postamble[][2] = { /* Addr allmodes */ {0x0001609c, 0x0b283f31}, @@ -1358,4 +1330,18 @@ static const u32 ar9485_1_1_baseband_core_txfir_coeff_japan_2484[][2] = { {0x0000a3a0, 0xca9228ee}, }; +static const u32 ar9485_1_1_pcie_phy_clkreq_disable_L1[][2] = { + /* Addr allmodes */ + {0x00018c00, 0x18013e5e}, + {0x00018c04, 0x000801d8}, + {0x00018c08, 0x0000080c}, +}; + +static const u32 ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1[][2] = { + /* Addr allmodes */ + {0x00018c00, 0x1801265e}, + {0x00018c04, 0x000801d8}, + {0x00018c08, 0x0000080c}, +}; + #endif /* INITVALS_9485_H */ diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index e7a38d844a6a..60a5da53668f 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -632,15 +632,16 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs); /* Main driver core */ /********************/ -#define ATH9K_PCI_CUS198 0x0001 -#define ATH9K_PCI_CUS230 0x0002 -#define ATH9K_PCI_CUS217 0x0004 -#define ATH9K_PCI_CUS252 0x0008 -#define ATH9K_PCI_WOW 0x0010 -#define ATH9K_PCI_BT_ANT_DIV 0x0020 -#define ATH9K_PCI_D3_L1_WAR 0x0040 -#define ATH9K_PCI_AR9565_1ANT 0x0080 -#define ATH9K_PCI_AR9565_2ANT 0x0100 +#define ATH9K_PCI_CUS198 0x0001 +#define ATH9K_PCI_CUS230 0x0002 +#define ATH9K_PCI_CUS217 0x0004 +#define ATH9K_PCI_CUS252 0x0008 +#define ATH9K_PCI_WOW 0x0010 +#define ATH9K_PCI_BT_ANT_DIV 0x0020 +#define ATH9K_PCI_D3_L1_WAR 0x0040 +#define ATH9K_PCI_AR9565_1ANT 0x0080 +#define ATH9K_PCI_AR9565_2ANT 0x0100 +#define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200 /* * Default cache line size, in bytes. diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c index 90b8342d1ed4..8824610c21fb 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_debug.c +++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c @@ -44,14 +44,20 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, if (buf == NULL) return -ENOMEM; - if (sc->dfs_detector) - dfs_pool_stats = sc->dfs_detector->get_stats(sc->dfs_detector); - len += scnprintf(buf + len, size - len, "DFS support for " "macVersion = 0x%x, macRev = 0x%x: %s\n", hw_ver->macVersion, hw_ver->macRev, (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ? "enabled" : "disabled"); + + if (!sc->dfs_detector) { + len += scnprintf(buf + len, size - len, + "DFS detector not enabled\n"); + goto exit; + } + + dfs_pool_stats = sc->dfs_detector->get_stats(sc->dfs_detector); + len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n"); ATH9K_DFS_STAT("pulse events reported ", pulses_total); ATH9K_DFS_STAT("invalid pulse events ", pulses_no_dfs); @@ -76,6 +82,7 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, ATH9K_DFS_POOL_STAT("Seqs. alloc error ", pseq_alloc_error); ATH9K_DFS_POOL_STAT("Seqs. in use ", pseq_used); +exit: if (len > size) len = size; diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 9ea24f1cba73..a2c9a5dbac6b 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -316,6 +316,7 @@ struct ath9k_ops_config { u32 ant_ctrl_comm2g_switch_enable; bool xatten_margin_cfg; bool alt_mingainidx; + bool no_pll_pwrsave; }; enum ath9k_int { diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index d8643ebabd30..710192ed27ed 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -609,6 +609,11 @@ static void ath9k_init_platform(struct ath_softc *sc) ah->config.pcie_waen = 0x0040473b; ath_info(common, "Enable WAR for ASPM D3/L1\n"); } + + if (sc->driver_data & ATH9K_PCI_NO_PLL_PWRSAVE) { + ah->config.no_pll_pwrsave = true; + ath_info(common, "Disable PLL PowerSave\n"); + } } static void ath9k_eeprom_request_cb(const struct firmware *eeprom_blob, @@ -863,8 +868,8 @@ static const struct ieee80211_iface_combination if_comb[] = { .max_interfaces = 1, .num_different_channels = 1, .beacon_int_infra_match = true, - .radar_detect_widths = BIT(NL80211_CHAN_NO_HT) | - BIT(NL80211_CHAN_HT20), + .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | + BIT(NL80211_CHAN_WIDTH_20), } }; diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index 7e4c2524b630..b5656fce4ff5 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -195,6 +195,93 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = { 0x3219), .driver_data = ATH9K_PCI_BT_ANT_DIV }, + /* AR9485 cards with PLL power-save disabled by default. */ + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x2C97), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x2100), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x1C56, /* ASKEY */ + 0x4001), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x11AD, /* LITEON */ + 0x6627), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x11AD, /* LITEON */ + 0x6628), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_FOXCONN, + 0xE04E), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_FOXCONN, + 0xE04F), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x144F, /* ASKEY */ + 0x7197), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x1B9A, /* XAVI */ + 0x2000), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x1B9A, /* XAVI */ + 0x2001), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x1186), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x1F86), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x1195), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_AZWAVE, + 0x1F95), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x1B9A, /* XAVI */ + 0x1C00), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + 0x1B9A, /* XAVI */ + 0x1C01), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS, + 0x0032, + PCI_VENDOR_ID_ASUSTEK, + 0x850D), + .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE }, + { PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E AR9485 */ { PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E AR9580 */ diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index c00687e05688..1217c52ab28e 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -362,7 +362,8 @@ static int __ath_reg_dyn_country(struct wiphy *wiphy, { u16 country_code; - if (!ath_is_world_regd(reg)) + if (request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE && + !ath_is_world_regd(reg)) return -EINVAL; country_code = ath_regd_find_country_by_name(request->alpha2); diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c index 5b84f7ae0b1e..ef44a2da644d 100644 --- a/drivers/net/wireless/ath/wcn36xx/debug.c +++ b/drivers/net/wireless/ath/wcn36xx/debug.c @@ -126,7 +126,7 @@ static ssize_t write_file_dump(struct file *file, if (begin == NULL) break; - if (kstrtoul(begin, 0, (unsigned long *)(arg + i)) != 0) + if (kstrtou32(begin, 0, &arg[i]) != 0) break; } diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c index f8c3a10510c2..de9eb2cfbf4b 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.c +++ b/drivers/net/wireless/ath/wcn36xx/smd.c @@ -1286,7 +1286,8 @@ int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif, } else { wcn36xx_err("Beacon is to big: beacon size=%d\n", msg_body.beacon_length); - return -ENOMEM; + ret = -ENOMEM; + goto out; } memcpy(msg_body.bssid, vif->addr, ETH_ALEN); @@ -1327,7 +1328,8 @@ int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn, if (skb->len > BEACON_TEMPLATE_SIZE) { wcn36xx_warn("probe response template is too big: %d\n", skb->len); - return -E2BIG; + ret = -E2BIG; + goto out; } msg.probe_resp_template_len = skb->len; @@ -1606,7 +1608,8 @@ int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn, /* TODO: it also support ARP response type */ } else { wcn36xx_warn("unknow keep alive packet type %d\n", packet_type); - return -EINVAL; + ret = -EINVAL; + goto out; } PREPARE_HAL_BUF(wcn->hal_buf, msg_body); diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 5b5b952d47b1..4a2293041821 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -823,6 +823,7 @@ static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg, } err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state, action, P2PAPI_BSSCFG_DEVICE); + kfree(chanspecs); } exit: if (err) diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index 668dd27616a0..cc6a0a586f0b 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -913,7 +913,10 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf, char *p2; struct debug_data *d = f->private_data; - pdata = kmalloc(cnt, GFP_KERNEL); + if (cnt == 0) + return 0; + + pdata = kmalloc(cnt + 1, GFP_KERNEL); if (pdata == NULL) return 0; @@ -922,6 +925,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf, kfree(pdata); return 0; } + pdata[cnt] = '\0'; p0 = pdata; for (i = 0; i < num_of_items; i++) { diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index ef8c98e21098..f499efc6abcf 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -902,6 +902,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev) if (card->model == MODEL_UNKNOWN) { pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n", p_dev->manf_id, p_dev->card_id); + ret = -ENODEV; goto out2; } diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index de0df86704e7..9df7bc91a26f 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2097,7 +2097,7 @@ out: } /* Generic Netlink operations array */ -static struct genl_ops hwsim_ops[] = { +static const struct genl_ops hwsim_ops[] = { { .cmd = HWSIM_CMD_REGISTER, .policy = hwsim_genl_policy, @@ -2148,8 +2148,7 @@ static int hwsim_init_netlink(void) printk(KERN_INFO "mac80211_hwsim: initializing netlink\n"); - rc = genl_register_family_with_ops(&hwsim_genl_family, - hwsim_ops, ARRAY_SIZE(hwsim_ops)); + rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops); if (rc) goto failure; diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index fbad00a5abc8..aeaea0e3b4c4 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -2210,8 +2210,10 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, priv->bss_started = 0; priv->bss_num = 0; - if (mwifiex_cfg80211_init_p2p_client(priv)) - return ERR_PTR(-EFAULT); + if (mwifiex_cfg80211_init_p2p_client(priv)) { + wdev = ERR_PTR(-EFAULT); + goto done; + } break; default: @@ -2224,7 +2226,8 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, if (!dev) { wiphy_err(wiphy, "no memory available for netdevice\n"); priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; - return ERR_PTR(-ENOMEM); + wdev = ERR_PTR(-ENOMEM); + goto done; } mwifiex_init_priv_params(priv, dev); @@ -2264,7 +2267,9 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, wiphy_err(wiphy, "cannot register virtual network device\n"); free_netdev(dev); priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; - return ERR_PTR(-EFAULT); + priv->netdev = NULL; + wdev = ERR_PTR(-EFAULT); + goto done; } sema_init(&priv->async_sem, 1); @@ -2274,6 +2279,13 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, #ifdef CONFIG_DEBUG_FS mwifiex_dev_debugfs_init(priv); #endif + +done: + if (IS_ERR(wdev)) { + kfree(priv->wdev); + priv->wdev = NULL; + } + return wdev; } EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); @@ -2298,7 +2310,10 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) unregister_netdevice(wdev->netdev); /* Clear the priv in adapter */ + priv->netdev->ieee80211_ptr = NULL; priv->netdev = NULL; + kfree(wdev); + priv->wdev = NULL; priv->media_connected = false; diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h index f80f30b6160e..c8385ec77a86 100644 --- a/drivers/net/wireless/mwifiex/fw.h +++ b/drivers/net/wireless/mwifiex/fw.h @@ -1020,8 +1020,8 @@ struct mwifiex_power_group { } __packed; struct mwifiex_types_power_group { - u16 type; - u16 length; + __le16 type; + __le16 length; } __packed; struct host_cmd_ds_txpwr_cfg { diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c index 220af4fe0fc6..81ac001ee741 100644 --- a/drivers/net/wireless/mwifiex/ie.c +++ b/drivers/net/wireless/mwifiex/ie.c @@ -82,7 +82,7 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv, struct mwifiex_ie_list *ie_list) { u16 travel_len, index, mask; - s16 input_len; + s16 input_len, tlv_len; struct mwifiex_ie *ie; u8 *tmp; @@ -91,11 +91,13 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv, ie_list->len = 0; - while (input_len > 0) { + while (input_len >= sizeof(struct mwifiex_ie_types_header)) { ie = (struct mwifiex_ie *)(((u8 *)ie_list) + travel_len); - input_len -= le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE; - travel_len += le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE; + tlv_len = le16_to_cpu(ie->ie_length); + travel_len += tlv_len + MWIFIEX_IE_HDR_SIZE; + if (input_len < tlv_len + MWIFIEX_IE_HDR_SIZE) + return -1; index = le16_to_cpu(ie->ie_index); mask = le16_to_cpu(ie->mgmt_subtype_mask); @@ -132,6 +134,7 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv, le16_add_cpu(&ie_list->len, le16_to_cpu(priv->mgmt_ie[index].ie_length) + MWIFIEX_IE_HDR_SIZE); + input_len -= tlv_len + MWIFIEX_IE_HDR_SIZE; } if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index 9d7c9d354d34..78e8a6666cc6 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -411,13 +411,14 @@ static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter) */ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) { - int ret, i; + int ret; char fmt[64]; struct mwifiex_private *priv; struct mwifiex_adapter *adapter = context; struct mwifiex_fw_image fw; struct semaphore *sem = adapter->card_sem; bool init_failed = false; + struct wireless_dev *wdev; if (!firmware) { dev_err(adapter->dev, @@ -469,14 +470,16 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) priv = adapter->priv[MWIFIEX_BSS_ROLE_STA]; if (mwifiex_register_cfg80211(adapter)) { dev_err(adapter->dev, "cannot register with cfg80211\n"); - goto err_register_cfg80211; + goto err_init_fw; } rtnl_lock(); /* Create station interface by default */ - if (!mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", - NL80211_IFTYPE_STATION, NULL, NULL)) { + wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", + NL80211_IFTYPE_STATION, NULL, NULL); + if (IS_ERR(wdev)) { dev_err(adapter->dev, "cannot create default STA interface\n"); + rtnl_unlock(); goto err_add_intf; } rtnl_unlock(); @@ -486,17 +489,6 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context) goto done; err_add_intf: - for (i = 0; i < adapter->priv_num; i++) { - priv = adapter->priv[i]; - - if (!priv) - continue; - - if (priv->wdev && priv->netdev) - mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev); - } - rtnl_unlock(); -err_register_cfg80211: wiphy_unregister(adapter->wiphy); wiphy_free(adapter->wiphy); err_init_fw: @@ -1006,12 +998,6 @@ int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem) wiphy_unregister(priv->wdev->wiphy); wiphy_free(priv->wdev->wiphy); - for (i = 0; i < adapter->priv_num; i++) { - priv = adapter->priv[i]; - if (priv) - kfree(priv->wdev); - } - mwifiex_terminate_workqueue(adapter); /* Unregister device */ diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 33fa9432b241..03688aa14e8a 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -232,7 +232,6 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev) } mwifiex_remove_card(card->adapter, &add_remove_card_sem); - kfree(card); } static void mwifiex_pcie_shutdown(struct pci_dev *pdev) @@ -2313,6 +2312,7 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter) pci_release_region(pdev, 0); pci_set_drvdata(pdev, NULL); } + kfree(card); } /* diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index 1576104e3d95..b44a31523461 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -196,7 +196,6 @@ mwifiex_sdio_remove(struct sdio_func *func) } mwifiex_remove_card(card->adapter, &add_remove_card_sem); - kfree(card); } /* @@ -1029,7 +1028,10 @@ static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb, u32 upld_typ) { u8 *cmd_buf; + __le16 *curr_ptr = (__le16 *)skb->data; + u16 pkt_len = le16_to_cpu(*curr_ptr); + skb_trim(skb, pkt_len); skb_pull(skb, INTF_HEADER_LEN); switch (upld_typ) { @@ -1742,7 +1744,6 @@ mwifiex_unregister_dev(struct mwifiex_adapter *adapter) sdio_claim_host(card->func); sdio_disable_func(card->func); sdio_release_host(card->func); - sdio_set_drvdata(card->func, NULL); } } @@ -1770,7 +1771,6 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter) return ret; } - sdio_set_drvdata(func, card); adapter->dev = &func->dev; @@ -1798,6 +1798,8 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) int ret; u8 sdio_ireg; + sdio_set_drvdata(card->func, card); + /* * Read the HOST_INT_STATUS_REG for ACK the first interrupt got * from the bootloader. If we don't do this we get a interrupt @@ -1880,6 +1882,8 @@ static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) kfree(card->mpa_rx.len_arr); kfree(card->mpa_tx.buf); kfree(card->mpa_rx.buf); + sdio_set_drvdata(card->func, NULL); + kfree(card); } /* diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c index 7d66018a2e33..2181ee283d82 100644 --- a/drivers/net/wireless/mwifiex/sta_cmd.c +++ b/drivers/net/wireless/mwifiex/sta_cmd.c @@ -239,14 +239,14 @@ static int mwifiex_cmd_tx_power_cfg(struct host_cmd_ds_command *cmd, memmove(cmd_txp_cfg, txp, sizeof(struct host_cmd_ds_txpwr_cfg) + sizeof(struct mwifiex_types_power_group) + - pg_tlv->length); + le16_to_cpu(pg_tlv->length)); pg_tlv = (struct mwifiex_types_power_group *) ((u8 *) cmd_txp_cfg + sizeof(struct host_cmd_ds_txpwr_cfg)); cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sizeof(struct mwifiex_types_power_group) + - pg_tlv->length); + le16_to_cpu(pg_tlv->length)); } else { memmove(cmd_txp_cfg, txp, sizeof(*txp)); } diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c index 58a6013712d2..2675ca7f8d14 100644 --- a/drivers/net/wireless/mwifiex/sta_cmdresp.c +++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c @@ -274,17 +274,20 @@ static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv, struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg; struct mwifiex_rate_scope *rate_scope; struct mwifiex_ie_types_header *head; - u16 tlv, tlv_buf_len; + u16 tlv, tlv_buf_len, tlv_buf_left; u8 *tlv_buf; u32 i; - tlv_buf = ((u8 *)rate_cfg) + - sizeof(struct host_cmd_ds_tx_rate_cfg); - tlv_buf_len = le16_to_cpu(*(__le16 *) (tlv_buf + sizeof(u16))); + tlv_buf = ((u8 *)rate_cfg) + sizeof(struct host_cmd_ds_tx_rate_cfg); + tlv_buf_left = le16_to_cpu(resp->size) - S_DS_GEN - sizeof(*rate_cfg); - while (tlv_buf && tlv_buf_len > 0) { - tlv = (*tlv_buf); - tlv = tlv | (*(tlv_buf + 1) << 8); + while (tlv_buf_left >= sizeof(*head)) { + head = (struct mwifiex_ie_types_header *)tlv_buf; + tlv = le16_to_cpu(head->type); + tlv_buf_len = le16_to_cpu(head->len); + + if (tlv_buf_left < (sizeof(*head) + tlv_buf_len)) + break; switch (tlv) { case TLV_TYPE_RATE_SCOPE: @@ -304,9 +307,8 @@ static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv, /* Add RATE_DROP tlv here */ } - head = (struct mwifiex_ie_types_header *) tlv_buf; - tlv_buf += le16_to_cpu(head->len) + sizeof(*head); - tlv_buf_len -= le16_to_cpu(head->len); + tlv_buf += (sizeof(*head) + tlv_buf_len); + tlv_buf_left -= (sizeof(*head) + tlv_buf_len); } priv->is_data_rate_auto = mwifiex_is_rate_auto(priv); @@ -340,13 +342,17 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf) ((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg)); pg = (struct mwifiex_power_group *) ((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group)); - length = pg_tlv_hdr->length; - if (length > 0) { - max_power = pg->power_max; - min_power = pg->power_min; - length -= sizeof(struct mwifiex_power_group); - } - while (length) { + length = le16_to_cpu(pg_tlv_hdr->length); + + /* At least one structure required to update power */ + if (length < sizeof(struct mwifiex_power_group)) + return 0; + + max_power = pg->power_max; + min_power = pg->power_min; + length -= sizeof(struct mwifiex_power_group); + + while (length >= sizeof(struct mwifiex_power_group)) { pg++; if (max_power < pg->power_max) max_power = pg->power_max; @@ -356,10 +362,8 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf) length -= sizeof(struct mwifiex_power_group); } - if (pg_tlv_hdr->length > 0) { - priv->min_tx_power_level = (u8) min_power; - priv->max_tx_power_level = (u8) max_power; - } + priv->min_tx_power_level = (u8) min_power; + priv->max_tx_power_level = (u8) max_power; return 0; } diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c index f084412eee0b..c8e029df770e 100644 --- a/drivers/net/wireless/mwifiex/sta_ioctl.c +++ b/drivers/net/wireless/mwifiex/sta_ioctl.c @@ -638,8 +638,9 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv, txp_cfg->mode = cpu_to_le32(1); pg_tlv = (struct mwifiex_types_power_group *) (buf + sizeof(struct host_cmd_ds_txpwr_cfg)); - pg_tlv->type = TLV_TYPE_POWER_GROUP; - pg_tlv->length = 4 * sizeof(struct mwifiex_power_group); + pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP); + pg_tlv->length = + cpu_to_le16(4 * sizeof(struct mwifiex_power_group)); pg = (struct mwifiex_power_group *) (buf + sizeof(struct host_cmd_ds_txpwr_cfg) + sizeof(struct mwifiex_types_power_group)); diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c index 1cfe5a738c47..92f76d655e6c 100644 --- a/drivers/net/wireless/mwifiex/uap_txrx.c +++ b/drivers/net/wireless/mwifiex/uap_txrx.c @@ -97,6 +97,7 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv, struct mwifiex_txinfo *tx_info; int hdr_chop; struct timeval tv; + struct ethhdr *p_ethhdr; u8 rfc1042_eth_hdr[ETH_ALEN] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; uap_rx_pd = (struct uap_rxpd *)(skb->data); @@ -112,14 +113,36 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv, } if (!memcmp(&rx_pkt_hdr->rfc1042_hdr, - rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr))) + rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr))) { + /* Replace the 803 header and rfc1042 header (llc/snap) with + * an Ethernet II header, keep the src/dst and snap_type + * (ethertype). + * + * The firmware only passes up SNAP frames converting all RX + * data from 802.11 to 802.2/LLC/SNAP frames. + * + * To create the Ethernet II, just move the src, dst address + * right before the snap_type. + */ + p_ethhdr = (struct ethhdr *) + ((u8 *)(&rx_pkt_hdr->eth803_hdr) + + sizeof(rx_pkt_hdr->eth803_hdr) + + sizeof(rx_pkt_hdr->rfc1042_hdr) + - sizeof(rx_pkt_hdr->eth803_hdr.h_dest) + - sizeof(rx_pkt_hdr->eth803_hdr.h_source) + - sizeof(rx_pkt_hdr->rfc1042_hdr.snap_type)); + memcpy(p_ethhdr->h_source, rx_pkt_hdr->eth803_hdr.h_source, + sizeof(p_ethhdr->h_source)); + memcpy(p_ethhdr->h_dest, rx_pkt_hdr->eth803_hdr.h_dest, + sizeof(p_ethhdr->h_dest)); /* Chop off the rxpd + the excess memory from * 802.2/llc/snap header that was removed. */ - hdr_chop = (u8 *)eth_hdr - (u8 *)uap_rx_pd; - else + hdr_chop = (u8 *)p_ethhdr - (u8 *)uap_rx_pd; + } else { /* Chop off the rxpd */ hdr_chop = (u8 *)&rx_pkt_hdr->eth803_hdr - (u8 *)uap_rx_pd; + } /* Chop off the leading header bytes so the it points * to the start of either the reconstructed EthII frame diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index 1c70b8d09227..edf5b7a24900 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -350,7 +350,6 @@ static int mwifiex_usb_probe(struct usb_interface *intf, card->udev = udev; card->intf = intf; - usb_card = card; pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n", udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass, @@ -525,25 +524,28 @@ static int mwifiex_usb_resume(struct usb_interface *intf) static void mwifiex_usb_disconnect(struct usb_interface *intf) { struct usb_card_rec *card = usb_get_intfdata(intf); - struct mwifiex_adapter *adapter; - if (!card || !card->adapter) { - pr_err("%s: card or card->adapter is NULL\n", __func__); + if (!card) { + pr_err("%s: card is NULL\n", __func__); return; } - adapter = card->adapter; - if (!adapter->priv_num) - return; - mwifiex_usb_free(card); - dev_dbg(adapter->dev, "%s: removing card\n", __func__); - mwifiex_remove_card(adapter, &add_remove_card_sem); + if (card->adapter) { + struct mwifiex_adapter *adapter = card->adapter; + + if (!adapter->priv_num) + return; + + dev_dbg(adapter->dev, "%s: removing card\n", __func__); + mwifiex_remove_card(adapter, &add_remove_card_sem); + } usb_set_intfdata(intf, NULL); usb_put_dev(interface_to_usbdev(intf)); kfree(card); + usb_card = NULL; return; } @@ -754,6 +756,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter) card->adapter = adapter; adapter->dev = &card->udev->dev; strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME); + usb_card = card; return 0; } @@ -762,7 +765,7 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter) { struct usb_card_rec *card = (struct usb_card_rec *)adapter->card; - usb_set_intfdata(card->intf, NULL); + card->adapter = NULL; } static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, @@ -1004,7 +1007,7 @@ static void mwifiex_usb_cleanup_module(void) if (!down_interruptible(&add_remove_card_sem)) up(&add_remove_card_sem); - if (usb_card) { + if (usb_card && usb_card->adapter) { struct mwifiex_adapter *adapter = usb_card->adapter; int i; diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 5dd0ccc70b86..13eaeed03898 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -722,6 +722,9 @@ int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv, tlv_hdr = (struct mwifiex_ie_types_data *) curr; tlv_len = le16_to_cpu(tlv_hdr->header.len); + if (resp_len < tlv_len + sizeof(tlv_hdr->header)) + break; + switch (le16_to_cpu(tlv_hdr->header.type)) { case TLV_TYPE_WMMQSTATUS: tlv_wmm_qstatus = diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c index 41a16d30c79c..e05d9b4c8317 100644 --- a/drivers/net/wireless/prism54/islpci_dev.c +++ b/drivers/net/wireless/prism54/islpci_dev.c @@ -811,6 +811,10 @@ static const struct net_device_ops islpci_netdev_ops = { .ndo_validate_addr = eth_validate_addr, }; +static struct device_type wlan_type = { + .name = "wlan", +}; + struct net_device * islpci_setup(struct pci_dev *pdev) { @@ -821,9 +825,8 @@ islpci_setup(struct pci_dev *pdev) return ndev; pci_set_drvdata(pdev, ndev); -#if defined(SET_NETDEV_DEV) SET_NETDEV_DEV(ndev, &pdev->dev); -#endif + SET_NETDEV_DEVTYPE(ndev, &wlan_type); /* setup the structure members */ ndev->base_addr = pci_resource_start(pdev, 0); diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index c5738f14c4ba..776aff3678ff 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2640,7 +2640,7 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev, if (rt2x00_rt(rt2x00dev, RT5392)) { rt2800_rfcsr_read(rt2x00dev, 50, &rfcsr); - if (info->default_power1 > POWER_BOUND) + if (info->default_power2 > POWER_BOUND) rt2x00_set_field8(&rfcsr, RFCSR50_TX, POWER_BOUND); else rt2x00_set_field8(&rfcsr, RFCSR50_TX, diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 080b1fcae5fa..9dd92a700442 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -181,6 +181,7 @@ static void rt2x00lib_autowakeup(struct work_struct *work) static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac, struct ieee80211_vif *vif) { + struct ieee80211_tx_control control = {}; struct rt2x00_dev *rt2x00dev = data; struct sk_buff *skb; @@ -195,7 +196,7 @@ static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac, */ skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif); while (skb) { - rt2x00mac_tx(rt2x00dev->hw, NULL, skb); + rt2x00mac_tx(rt2x00dev->hw, &control, skb); skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif); } } diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h index a0935987fa3a..7f40ab8e1bd8 100644 --- a/drivers/net/wireless/rt2x00/rt2x00lib.h +++ b/drivers/net/wireless/rt2x00/rt2x00lib.h @@ -146,7 +146,7 @@ void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length); * @local: frame is not from mac80211 */ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, - bool local); + struct ieee80211_sta *sta, bool local); /** * rt2x00queue_update_beacon - Send new beacon from mac80211 diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 7c157857f5ce..2183e7978399 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -90,7 +90,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, frag_skb->data, data_length, tx_info, (struct ieee80211_rts *)(skb->data)); - retval = rt2x00queue_write_tx_frame(queue, skb, true); + retval = rt2x00queue_write_tx_frame(queue, skb, NULL, true); if (retval) { dev_kfree_skb_any(skb); rt2x00_warn(rt2x00dev, "Failed to send RTS/CTS frame\n"); @@ -151,7 +151,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, goto exit_fail; } - if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false))) + if (unlikely(rt2x00queue_write_tx_frame(queue, skb, control->sta, false))) goto exit_fail; /* diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 50590b1420a5..a5d38e8ad9e4 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -635,7 +635,7 @@ static void rt2x00queue_bar_check(struct queue_entry *entry) } int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, - bool local) + struct ieee80211_sta *sta, bool local) { struct ieee80211_tx_info *tx_info; struct queue_entry *entry; @@ -649,7 +649,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, * after that we are free to use the skb->cb array * for our information. */ - rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, NULL); + rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, sta); /* * All information is retrieved from the skb->cb array, diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 9a78e3daf742..ff784072fb42 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -37,6 +37,7 @@ #include <linux/ip.h> #include <linux/module.h> +#include <linux/udp.h> /* *NOTICE!!!: This file will be very big, we should @@ -1074,64 +1075,52 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) if (!ieee80211_is_data(fc)) return false; + ip = (const struct iphdr *)(skb->data + mac_hdr_len + + SNAP_SIZE + PROTOC_TYPE_SIZE); + ether_type = be16_to_cpup((__be16 *) + (skb->data + mac_hdr_len + SNAP_SIZE)); - ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len + - SNAP_SIZE + PROTOC_TYPE_SIZE); - ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE); - /* ether_type = ntohs(ether_type); */ - - if (ETH_P_IP == ether_type) { - if (IPPROTO_UDP == ip->protocol) { - struct udphdr *udp = (struct udphdr *)((u8 *) ip + - (ip->ihl << 2)); - if (((((u8 *) udp)[1] == 68) && - (((u8 *) udp)[3] == 67)) || - ((((u8 *) udp)[1] == 67) && - (((u8 *) udp)[3] == 68))) { - /* - * 68 : UDP BOOTP client - * 67 : UDP BOOTP server - */ - RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), - DBG_DMESG, "dhcp %s !!\n", - is_tx ? "Tx" : "Rx"); - - if (is_tx) { - rtlpriv->enter_ps = false; - schedule_work(&rtlpriv-> - works.lps_change_work); - ppsc->last_delaylps_stamp_jiffies = - jiffies; - } + switch (ether_type) { + case ETH_P_IP: { + struct udphdr *udp; + u16 src; + u16 dst; - return true; - } - } - } else if (ETH_P_ARP == ether_type) { - if (is_tx) { - rtlpriv->enter_ps = false; - schedule_work(&rtlpriv->works.lps_change_work); - ppsc->last_delaylps_stamp_jiffies = jiffies; - } + if (ip->protocol != IPPROTO_UDP) + return false; + udp = (struct udphdr *)((u8 *)ip + (ip->ihl << 2)); + src = be16_to_cpu(udp->source); + dst = be16_to_cpu(udp->dest); - return true; - } else if (ETH_P_PAE == ether_type) { + /* If this case involves port 68 (UDP BOOTP client) connecting + * with port 67 (UDP BOOTP server), then return true so that + * the lowest speed is used. + */ + if (!((src == 68 && dst == 67) || (src == 67 && dst == 68))) + return false; + + RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, + "dhcp %s !!\n", is_tx ? "Tx" : "Rx"); + break; + } + case ETH_P_ARP: + break; + case ETH_P_PAE: RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx"); - - if (is_tx) { - rtlpriv->enter_ps = false; - schedule_work(&rtlpriv->works.lps_change_work); - ppsc->last_delaylps_stamp_jiffies = jiffies; - } - - return true; - } else if (ETH_P_IPV6 == ether_type) { - /* IPv6 */ - return true; + break; + case ETH_P_IPV6: + /* TODO: Is this right? */ + return false; + default: + return false; } - - return false; + if (is_tx) { + rtlpriv->enter_ps = false; + schedule_work(&rtlpriv->works.lps_change_work); + ppsc->last_delaylps_stamp_jiffies = jiffies; + } + return true; } EXPORT_SYMBOL_GPL(rtl_is_special_data); diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c index ae13fb94b2e8..2ffc7298f686 100644 --- a/drivers/net/wireless/rtlwifi/efuse.c +++ b/drivers/net/wireless/rtlwifi/efuse.c @@ -262,9 +262,9 @@ void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf) sizeof(u8), GFP_ATOMIC); if (!efuse_tbl) return; - efuse_word = kmalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC); + efuse_word = kzalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC); if (!efuse_word) - goto done; + goto out; for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) { efuse_word[i] = kmalloc(efuse_max_section * sizeof(u16), GFP_ATOMIC); @@ -378,6 +378,7 @@ done: for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) kfree(efuse_word[i]); kfree(efuse_word); +out: kfree(efuse_tbl); } diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c index 393685390f3e..e26312fb4356 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c @@ -769,7 +769,7 @@ static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw, static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw, struct rtl_stats *pstats, - struct rx_desc_92c *pdesc, + struct rx_desc_92c *p_desc, struct rx_fwinfo_92c *p_drvinfo, bool packet_match_bssid, bool packet_toself, @@ -784,11 +784,11 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw, u32 rssi, total_rssi = 0; bool in_powersavemode = false; bool is_cck_rate; + u8 *pdesc = (u8 *)p_desc; - is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc); + is_cck_rate = RX_HAL_IS_CCK_RATE(p_desc); pstats->packet_matchbssid = packet_match_bssid; pstats->packet_toself = packet_toself; - pstats->is_cck = is_cck_rate; pstats->packet_beacon = packet_beacon; pstats->is_cck = is_cck_rate; pstats->RX_SIGQ[0] = -1; diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c index 25e50ffc44ec..1bc21ccfa71b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c @@ -303,10 +303,10 @@ out: bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats, struct ieee80211_rx_status *rx_status, - u8 *p_desc, struct sk_buff *skb) + u8 *pdesc, struct sk_buff *skb) { struct rx_fwinfo_92c *p_drvinfo; - struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc; + struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc; u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc); stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc); @@ -345,11 +345,11 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw, if (phystatus) { p_drvinfo = (struct rx_fwinfo_92c *)(skb->data + stats->rx_bufshift); - rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc, + rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc, p_drvinfo); } /*rx_status->qual = stats->signal; */ - rx_status->signal = stats->rssi + 10; + rx_status->signal = stats->recvsignalpower + 10; return true; } diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c index 945ddecf90c9..0eb0f4ae5920 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c @@ -525,7 +525,7 @@ bool rtl92de_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats, p_drvinfo); } /*rx_status->qual = stats->signal; */ - rx_status->signal = stats->rssi + 10; + rx_status->signal = stats->recvsignalpower + 10; return true; } diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/rf.c b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c index 5061f1db3f02..92d38ab3c60e 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/rf.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c @@ -265,7 +265,7 @@ static void _rtl92s_get_txpower_writeval_byregulatory(struct ieee80211_hw *hw, rtlefuse->pwrgroup_ht40 [RF90_PATH_A][chnl - 1]) { pwrdiff_limit[i] = - rtlefuse->pwrgroup_ht20 + rtlefuse->pwrgroup_ht40 [RF90_PATH_A][chnl - 1]; } } else { diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c index 222d2e792ca6..27efbcdac6a9 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c @@ -329,7 +329,7 @@ bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats, } /*rx_status->qual = stats->signal; */ - rx_status->signal = stats->rssi + 10; + rx_status->signal = stats->recvsignalpower + 10; return true; } diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index d224dc3bb092..0c65386fa30d 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -77,11 +77,7 @@ #define RTL_SLOT_TIME_9 9 #define RTL_SLOT_TIME_20 20 -/*related with tcp/ip. */ -/*if_ehther.h*/ -#define ETH_P_PAE 0x888E /*Port Access Entity (IEEE 802.1X) */ -#define ETH_P_IP 0x0800 /*Internet Protocol packet */ -#define ETH_P_ARP 0x0806 /*Address Resolution packet */ +/*related to tcp/ip. */ #define SNAP_SIZE 6 #define PROTOC_TYPE_SIZE 2 diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index b78ee10a956a..2329cccf1fa6 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -461,6 +461,9 @@ void xenvif_disconnect(struct xenvif *vif) if (netif_carrier_ok(vif->dev)) xenvif_carrier_off(vif); + if (vif->task) + kthread_stop(vif->task); + if (vif->tx_irq) { if (vif->tx_irq == vif->rx_irq) unbind_from_irqhandler(vif->tx_irq, vif); @@ -471,9 +474,6 @@ void xenvif_disconnect(struct xenvif *vif) vif->tx_irq = 0; } - if (vif->task) - kthread_stop(vif->task); - xenvif_unmap_frontend_rings(vif); } diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index d85e66979711..e59acb1daa23 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -277,12 +277,13 @@ static void xennet_alloc_rx_buffers(struct net_device *dev) if (!page) { kfree_skb(skb); no_skb: - /* Any skbuffs queued for refill? Force them out. */ - if (i != 0) - goto refill; /* Could not allocate any skbuffs. Try again later. */ mod_timer(&np->rx_refill_timer, jiffies + (HZ/10)); + + /* Any skbuffs queued for refill? Force them out. */ + if (i != 0) + goto refill; break; } diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c index 1cb6e51e6bda..170e8e60cdb7 100644 --- a/drivers/ntb/ntb_hw.c +++ b/drivers/ntb/ntb_hw.c @@ -141,6 +141,24 @@ void ntb_unregister_event_callback(struct ntb_device *ndev) ndev->event_cb = NULL; } +static void ntb_irq_work(unsigned long data) +{ + struct ntb_db_cb *db_cb = (struct ntb_db_cb *)data; + int rc; + + rc = db_cb->callback(db_cb->data, db_cb->db_num); + if (rc) + tasklet_schedule(&db_cb->irq_work); + else { + struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; + + mask = readw(ndev->reg_ofs.ldb_mask); + clear_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + } +} + /** * ntb_register_db_callback() - register a callback for doorbell interrupt * @ndev: pointer to ntb_device instance @@ -155,7 +173,7 @@ void ntb_unregister_event_callback(struct ntb_device *ndev) * RETURNS: An appropriate -ERRNO error value on error, or zero for success. */ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, - void *data, void (*func)(void *data, int db_num)) + void *data, int (*func)(void *data, int db_num)) { unsigned long mask; @@ -166,6 +184,10 @@ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, ndev->db_cb[idx].callback = func; ndev->db_cb[idx].data = data; + ndev->db_cb[idx].ndev = ndev; + + tasklet_init(&ndev->db_cb[idx].irq_work, ntb_irq_work, + (unsigned long) &ndev->db_cb[idx]); /* unmask interrupt */ mask = readw(ndev->reg_ofs.ldb_mask); @@ -194,6 +216,8 @@ void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx) set_bit(idx * ndev->bits_per_vector, &mask); writew(mask, ndev->reg_ofs.ldb_mask); + tasklet_disable(&ndev->db_cb[idx].irq_work); + ndev->db_cb[idx].callback = NULL; } @@ -678,6 +702,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) return -EINVAL; ndev->limits.max_mw = SNB_ERRATA_MAX_MW; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->reg_ofs.spad_write = ndev->mw[1].vbase + SNB_SPAD_OFFSET; ndev->reg_ofs.rdb = ndev->mw[1].vbase + @@ -688,8 +713,21 @@ static int ntb_xeon_setup(struct ntb_device *ndev) */ writeq(ndev->mw[1].bar_sz + 0x1000, ndev->reg_base + SNB_PBAR4LMT_OFFSET); + /* HW errata on the Limit registers. They can only be + * written when the base register is 4GB aligned and + * < 32bit. This should already be the case based on the + * driver defaults, but write the Limit registers first + * just in case. + */ } else { ndev->limits.max_mw = SNB_MAX_MW; + + /* HW Errata on bit 14 of b2bdoorbell register. Writes + * will not be mirrored to the remote system. Shrink + * the number of bits by one, since bit 14 is the last + * bit. + */ + ndev->limits.max_db_bits = SNB_MAX_DB_BITS - 1; ndev->reg_ofs.spad_write = ndev->reg_base + SNB_B2B_SPAD_OFFSET; ndev->reg_ofs.rdb = ndev->reg_base + @@ -699,6 +737,12 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * something silly */ writeq(0, ndev->reg_base + SNB_PBAR4LMT_OFFSET); + /* HW errata on the Limit registers. They can only be + * written when the base register is 4GB aligned and + * < 32bit. This should already be the case based on the + * driver defaults, but write the Limit registers first + * just in case. + */ } /* The Xeon errata workaround requires setting SBAR Base @@ -769,6 +813,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * have an equal amount. */ ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; /* Note: The SDOORBELL is the cause of the errata. You REALLY * don't want to touch it. */ @@ -793,6 +838,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev) * have an equal amount. */ ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2; + ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->reg_ofs.rdb = ndev->reg_base + SNB_PDOORBELL_OFFSET; ndev->reg_ofs.ldb = ndev->reg_base + SNB_SDOORBELL_OFFSET; ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_SDBMSK_OFFSET; @@ -819,7 +865,6 @@ static int ntb_xeon_setup(struct ntb_device *ndev) ndev->reg_ofs.lnk_stat = ndev->reg_base + SNB_SLINK_STATUS_OFFSET; ndev->reg_ofs.spci_cmd = ndev->reg_base + SNB_PCICMD_OFFSET; - ndev->limits.max_db_bits = SNB_MAX_DB_BITS; ndev->limits.msix_cnt = SNB_MSIX_CNT; ndev->bits_per_vector = SNB_DB_BITS_PER_VEC; @@ -934,12 +979,16 @@ static irqreturn_t bwd_callback_msix_irq(int irq, void *data) { struct ntb_db_cb *db_cb = data; struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq, db_cb->db_num); - if (db_cb->callback) - db_cb->callback(db_cb->data, db_cb->db_num); + mask = readw(ndev->reg_ofs.ldb_mask); + set_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + + tasklet_schedule(&db_cb->irq_work); /* No need to check for the specific HB irq, any interrupt means * we're connected. @@ -955,12 +1004,16 @@ static irqreturn_t xeon_callback_msix_irq(int irq, void *data) { struct ntb_db_cb *db_cb = data; struct ntb_device *ndev = db_cb->ndev; + unsigned long mask; dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq, db_cb->db_num); - if (db_cb->callback) - db_cb->callback(db_cb->data, db_cb->db_num); + mask = readw(ndev->reg_ofs.ldb_mask); + set_bit(db_cb->db_num * ndev->bits_per_vector, &mask); + writew(mask, ndev->reg_ofs.ldb_mask); + + tasklet_schedule(&db_cb->irq_work); /* On Sandybridge, there are 16 bits in the interrupt register * but only 4 vectors. So, 5 bits are assigned to the first 3 @@ -986,7 +1039,7 @@ static irqreturn_t xeon_event_msix_irq(int irq, void *dev) dev_err(&ndev->pdev->dev, "Error determining link status\n"); /* bit 15 is always the link bit */ - writew(1 << ndev->limits.max_db_bits, ndev->reg_ofs.ldb); + writew(1 << SNB_LINK_DB, ndev->reg_ofs.ldb); return IRQ_HANDLED; } @@ -1075,6 +1128,10 @@ static int ntb_setup_msix(struct ntb_device *ndev) "Only %d MSI-X vectors. Limiting the number of queues to that number.\n", rc); msix_entries = rc; + + rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries); + if (rc) + goto err1; } for (i = 0; i < msix_entries; i++) { @@ -1176,9 +1233,10 @@ static int ntb_setup_interrupts(struct ntb_device *ndev) */ if (ndev->hw_type == BWD_HW) writeq(~0, ndev->reg_ofs.ldb_mask); - else - writew(~(1 << ndev->limits.max_db_bits), - ndev->reg_ofs.ldb_mask); + else { + u16 var = 1 << SNB_LINK_DB; + writew(~var, ndev->reg_ofs.ldb_mask); + } rc = ntb_setup_msix(ndev); if (!rc) @@ -1286,6 +1344,39 @@ static void ntb_free_debugfs(struct ntb_device *ndev) } } +static void ntb_hw_link_up(struct ntb_device *ndev) +{ + if (ndev->conn_type == NTB_CONN_TRANSPARENT) + ntb_link_event(ndev, NTB_LINK_UP); + else { + u32 ntb_cntl; + + /* Let's bring the NTB link up */ + ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); + ntb_cntl &= ~(NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK); + ntb_cntl |= NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP; + ntb_cntl |= NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP; + writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); + } +} + +static void ntb_hw_link_down(struct ntb_device *ndev) +{ + u32 ntb_cntl; + + if (ndev->conn_type == NTB_CONN_TRANSPARENT) { + ntb_link_event(ndev, NTB_LINK_DOWN); + return; + } + + /* Bring NTB link down */ + ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); + ntb_cntl &= ~(NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP); + ntb_cntl &= ~(NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP); + ntb_cntl |= NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK; + writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); +} + static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct ntb_device *ndev; @@ -1374,9 +1465,7 @@ static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (rc) goto err6; - /* Let's bring the NTB link up */ - writel(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP, - ndev->reg_ofs.lnk_cntl); + ntb_hw_link_up(ndev); return 0; @@ -1406,12 +1495,8 @@ static void ntb_pci_remove(struct pci_dev *pdev) { struct ntb_device *ndev = pci_get_drvdata(pdev); int i; - u32 ntb_cntl; - /* Bring NTB link down */ - ntb_cntl = readl(ndev->reg_ofs.lnk_cntl); - ntb_cntl |= NTB_CNTL_LINK_DISABLE; - writel(ntb_cntl, ndev->reg_ofs.lnk_cntl); + ntb_hw_link_down(ndev); ntb_transport_free(ndev->ntb_transport); diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h index 0a31cedae7d4..bbdb7edca10c 100644 --- a/drivers/ntb/ntb_hw.h +++ b/drivers/ntb/ntb_hw.h @@ -106,10 +106,11 @@ struct ntb_mw { }; struct ntb_db_cb { - void (*callback) (void *data, int db_num); + int (*callback)(void *data, int db_num); unsigned int db_num; void *data; struct ntb_device *ndev; + struct tasklet_struct irq_work; }; struct ntb_device { @@ -228,8 +229,8 @@ struct ntb_device *ntb_register_transport(struct pci_dev *pdev, void ntb_unregister_transport(struct ntb_device *ndev); void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr); int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx, - void *data, void (*db_cb_func) (void *data, - int db_num)); + void *data, int (*db_cb_func)(void *data, + int db_num)); void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx); int ntb_register_event_callback(struct ntb_device *ndev, void (*event_cb_func) (void *handle, diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h index aa4bdd393c58..9774506419d7 100644 --- a/drivers/ntb/ntb_regs.h +++ b/drivers/ntb/ntb_regs.h @@ -55,6 +55,7 @@ #define SNB_MAX_COMPAT_SPADS 16 /* Reserve the uppermost bit for link interrupt */ #define SNB_MAX_DB_BITS 15 +#define SNB_LINK_DB 15 #define SNB_DB_BITS_PER_VEC 5 #define SNB_MAX_MW 2 #define SNB_ERRATA_MAX_MW 1 @@ -75,9 +76,6 @@ #define SNB_SBAR2XLAT_OFFSET 0x0030 #define SNB_SBAR4XLAT_OFFSET 0x0038 #define SNB_SBAR0BASE_OFFSET 0x0040 -#define SNB_SBAR0BASE_OFFSET 0x0040 -#define SNB_SBAR2BASE_OFFSET 0x0048 -#define SNB_SBAR4BASE_OFFSET 0x0050 #define SNB_SBAR2BASE_OFFSET 0x0048 #define SNB_SBAR4BASE_OFFSET 0x0050 #define SNB_NTBCNTL_OFFSET 0x0058 @@ -145,11 +143,13 @@ #define BWD_LTSSMSTATEJMP_FORCEDETECT (1 << 2) #define BWD_IBIST_ERR_OFLOW 0x7FFF7FFF -#define NTB_CNTL_CFG_LOCK (1 << 0) -#define NTB_CNTL_LINK_DISABLE (1 << 1) -#define NTB_CNTL_BAR23_SNOOP (1 << 2) -#define NTB_CNTL_BAR45_SNOOP (1 << 6) -#define BWD_CNTL_LINK_DOWN (1 << 16) +#define NTB_CNTL_CFG_LOCK (1 << 0) +#define NTB_CNTL_LINK_DISABLE (1 << 1) +#define NTB_CNTL_S2P_BAR23_SNOOP (1 << 2) +#define NTB_CNTL_P2S_BAR23_SNOOP (1 << 4) +#define NTB_CNTL_S2P_BAR45_SNOOP (1 << 6) +#define NTB_CNTL_P2S_BAR45_SNOOP (1 << 8) +#define BWD_CNTL_LINK_DOWN (1 << 16) #define NTB_PPD_OFFSET 0x00D4 #define SNB_PPD_CONN_TYPE 0x0003 diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index 12a9e83c008b..3217f394d45b 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -119,7 +119,6 @@ struct ntb_transport_qp { void (*rx_handler) (struct ntb_transport_qp *qp, void *qp_data, void *data, int len); - struct tasklet_struct rx_work; struct list_head rx_pend_q; struct list_head rx_free_q; spinlock_t ntb_rx_pend_q_lock; @@ -584,11 +583,8 @@ static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size) return 0; } -static void ntb_qp_link_cleanup(struct work_struct *work) +static void ntb_qp_link_cleanup(struct ntb_transport_qp *qp) { - struct ntb_transport_qp *qp = container_of(work, - struct ntb_transport_qp, - link_cleanup); struct ntb_transport *nt = qp->transport; struct pci_dev *pdev = ntb_query_pdev(nt->ndev); @@ -602,6 +598,16 @@ static void ntb_qp_link_cleanup(struct work_struct *work) dev_info(&pdev->dev, "qp %d: Link Down\n", qp->qp_num); qp->qp_link = NTB_LINK_DOWN; +} + +static void ntb_qp_link_cleanup_work(struct work_struct *work) +{ + struct ntb_transport_qp *qp = container_of(work, + struct ntb_transport_qp, + link_cleanup); + struct ntb_transport *nt = qp->transport; + + ntb_qp_link_cleanup(qp); if (nt->transport_link == NTB_LINK_UP) schedule_delayed_work(&qp->link_work, @@ -613,22 +619,20 @@ static void ntb_qp_link_down(struct ntb_transport_qp *qp) schedule_work(&qp->link_cleanup); } -static void ntb_transport_link_cleanup(struct work_struct *work) +static void ntb_transport_link_cleanup(struct ntb_transport *nt) { - struct ntb_transport *nt = container_of(work, struct ntb_transport, - link_cleanup); int i; + /* Pass along the info to any clients */ + for (i = 0; i < nt->max_qps; i++) + if (!test_bit(i, &nt->qp_bitmap)) + ntb_qp_link_cleanup(&nt->qps[i]); + if (nt->transport_link == NTB_LINK_DOWN) cancel_delayed_work_sync(&nt->link_work); else nt->transport_link = NTB_LINK_DOWN; - /* Pass along the info to any clients */ - for (i = 0; i < nt->max_qps; i++) - if (!test_bit(i, &nt->qp_bitmap)) - ntb_qp_link_down(&nt->qps[i]); - /* The scratchpad registers keep the values if the remote side * goes down, blast them now to give them a sane value the next * time they are accessed @@ -637,6 +641,14 @@ static void ntb_transport_link_cleanup(struct work_struct *work) ntb_write_local_spad(nt->ndev, i, 0); } +static void ntb_transport_link_cleanup_work(struct work_struct *work) +{ + struct ntb_transport *nt = container_of(work, struct ntb_transport, + link_cleanup); + + ntb_transport_link_cleanup(nt); +} + static void ntb_transport_event_callback(void *data, enum ntb_hw_event event) { struct ntb_transport *nt = data; @@ -880,7 +892,7 @@ static int ntb_transport_init_queue(struct ntb_transport *nt, } INIT_DELAYED_WORK(&qp->link_work, ntb_qp_link_work); - INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup); + INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup_work); spin_lock_init(&qp->ntb_rx_pend_q_lock); spin_lock_init(&qp->ntb_rx_free_q_lock); @@ -936,7 +948,7 @@ int ntb_transport_init(struct pci_dev *pdev) } INIT_DELAYED_WORK(&nt->link_work, ntb_transport_link_work); - INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup); + INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup_work); rc = ntb_register_event_callback(nt->ndev, ntb_transport_event_callback); @@ -972,7 +984,7 @@ void ntb_transport_free(void *transport) struct ntb_device *ndev = nt->ndev; int i; - nt->transport_link = NTB_LINK_DOWN; + ntb_transport_link_cleanup(nt); /* verify that all the qp's are freed */ for (i = 0; i < nt->max_qps; i++) { @@ -1034,10 +1046,9 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset, struct dma_chan *chan = qp->dma_chan; struct dma_device *device; size_t pay_off, buff_off; - dma_addr_t src, dest; + struct dmaengine_unmap_data *unmap; dma_cookie_t cookie; void *buf = entry->buf; - unsigned long flags; entry->len = len; @@ -1045,35 +1056,49 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset, goto err; if (len < copy_bytes) - goto err1; + goto err_wait; device = chan->device; pay_off = (size_t) offset & ~PAGE_MASK; buff_off = (size_t) buf & ~PAGE_MASK; if (!is_dma_copy_aligned(device, pay_off, buff_off, len)) - goto err1; + goto err_wait; - dest = dma_map_single(device->dev, buf, len, DMA_FROM_DEVICE); - if (dma_mapping_error(device->dev, dest)) - goto err1; + unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOWAIT); + if (!unmap) + goto err_wait; - src = dma_map_single(device->dev, offset, len, DMA_TO_DEVICE); - if (dma_mapping_error(device->dev, src)) - goto err2; + unmap->len = len; + unmap->addr[0] = dma_map_page(device->dev, virt_to_page(offset), + pay_off, len, DMA_TO_DEVICE); + if (dma_mapping_error(device->dev, unmap->addr[0])) + goto err_get_unmap; + + unmap->to_cnt = 1; + + unmap->addr[1] = dma_map_page(device->dev, virt_to_page(buf), + buff_off, len, DMA_FROM_DEVICE); + if (dma_mapping_error(device->dev, unmap->addr[1])) + goto err_get_unmap; + + unmap->from_cnt = 1; - flags = DMA_COMPL_DEST_UNMAP_SINGLE | DMA_COMPL_SRC_UNMAP_SINGLE | - DMA_PREP_INTERRUPT; - txd = device->device_prep_dma_memcpy(chan, dest, src, len, flags); + txd = device->device_prep_dma_memcpy(chan, unmap->addr[1], + unmap->addr[0], len, + DMA_PREP_INTERRUPT); if (!txd) - goto err3; + goto err_get_unmap; txd->callback = ntb_rx_copy_callback; txd->callback_param = entry; + dma_set_unmap(txd, unmap); cookie = dmaengine_submit(txd); if (dma_submit_error(cookie)) - goto err3; + goto err_set_unmap; + + dmaengine_unmap_put(unmap); qp->last_cookie = cookie; @@ -1081,11 +1106,11 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset, return; -err3: - dma_unmap_single(device->dev, src, len, DMA_TO_DEVICE); -err2: - dma_unmap_single(device->dev, dest, len, DMA_FROM_DEVICE); -err1: +err_set_unmap: + dmaengine_unmap_put(unmap); +err_get_unmap: + dmaengine_unmap_put(unmap); +err_wait: /* If the callbacks come out of order, the writing of the index to the * last completed will be out of order. This may result in the * receive stalling forever. @@ -1175,11 +1200,14 @@ err: goto out; } -static void ntb_transport_rx(unsigned long data) +static int ntb_transport_rxc_db(void *data, int db_num) { - struct ntb_transport_qp *qp = (struct ntb_transport_qp *)data; + struct ntb_transport_qp *qp = data; int rc, i; + dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n", + __func__, db_num); + /* Limit the number of packets processed in a single interrupt to * provide fairness to others */ @@ -1191,16 +1219,8 @@ static void ntb_transport_rx(unsigned long data) if (qp->dma_chan) dma_async_issue_pending(qp->dma_chan); -} - -static void ntb_transport_rxc_db(void *data, int db_num) -{ - struct ntb_transport_qp *qp = data; - - dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n", - __func__, db_num); - tasklet_schedule(&qp->rx_work); + return i; } static void ntb_tx_copy_callback(void *data) @@ -1245,12 +1265,12 @@ static void ntb_async_tx(struct ntb_transport_qp *qp, struct dma_chan *chan = qp->dma_chan; struct dma_device *device; size_t dest_off, buff_off; - dma_addr_t src, dest; + struct dmaengine_unmap_data *unmap; + dma_addr_t dest; dma_cookie_t cookie; void __iomem *offset; size_t len = entry->len; void *buf = entry->buf; - unsigned long flags; offset = qp->tx_mw + qp->tx_max_frame * qp->tx_index; hdr = offset + qp->tx_max_frame - sizeof(struct ntb_payload_header); @@ -1273,28 +1293,41 @@ static void ntb_async_tx(struct ntb_transport_qp *qp, if (!is_dma_copy_aligned(device, buff_off, dest_off, len)) goto err; - src = dma_map_single(device->dev, buf, len, DMA_TO_DEVICE); - if (dma_mapping_error(device->dev, src)) + unmap = dmaengine_get_unmap_data(device->dev, 1, GFP_NOWAIT); + if (!unmap) goto err; - flags = DMA_COMPL_SRC_UNMAP_SINGLE | DMA_PREP_INTERRUPT; - txd = device->device_prep_dma_memcpy(chan, dest, src, len, flags); + unmap->len = len; + unmap->addr[0] = dma_map_page(device->dev, virt_to_page(buf), + buff_off, len, DMA_TO_DEVICE); + if (dma_mapping_error(device->dev, unmap->addr[0])) + goto err_get_unmap; + + unmap->to_cnt = 1; + + txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len, + DMA_PREP_INTERRUPT); if (!txd) - goto err1; + goto err_get_unmap; txd->callback = ntb_tx_copy_callback; txd->callback_param = entry; + dma_set_unmap(txd, unmap); cookie = dmaengine_submit(txd); if (dma_submit_error(cookie)) - goto err1; + goto err_set_unmap; + + dmaengine_unmap_put(unmap); dma_async_issue_pending(chan); qp->tx_async++; return; -err1: - dma_unmap_single(device->dev, src, len, DMA_TO_DEVICE); +err_set_unmap: + dmaengine_unmap_put(unmap); +err_get_unmap: + dmaengine_unmap_put(unmap); err: ntb_memcpy_tx(entry, offset); qp->tx_memcpy++; @@ -1406,11 +1439,12 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev, qp->tx_handler = handlers->tx_handler; qp->event_handler = handlers->event_handler; + dmaengine_get(); qp->dma_chan = dma_find_channel(DMA_MEMCPY); - if (!qp->dma_chan) + if (!qp->dma_chan) { + dmaengine_put(); dev_info(&pdev->dev, "Unable to allocate DMA channel, using CPU instead\n"); - else - dmaengine_get(); + } for (i = 0; i < NTB_QP_DEF_NUM_ENTRIES; i++) { entry = kzalloc(sizeof(struct ntb_queue_entry), GFP_ATOMIC); @@ -1432,25 +1466,23 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev, &qp->tx_free_q); } - tasklet_init(&qp->rx_work, ntb_transport_rx, (unsigned long) qp); - rc = ntb_register_db_callback(qp->ndev, free_queue, qp, ntb_transport_rxc_db); if (rc) - goto err3; + goto err2; dev_info(&pdev->dev, "NTB Transport QP %d created\n", qp->qp_num); return qp; -err3: - tasklet_disable(&qp->rx_work); err2: while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q))) kfree(entry); err1: while ((entry = ntb_list_rm(&qp->ntb_rx_free_q_lock, &qp->rx_free_q))) kfree(entry); + if (qp->dma_chan) + dmaengine_put(); set_bit(free_queue, &nt->qp_bitmap); err: return NULL; @@ -1489,7 +1521,6 @@ void ntb_transport_free_queue(struct ntb_transport_qp *qp) } ntb_unregister_db_callback(qp->ndev, qp->qp_num); - tasklet_disable(&qp->rx_work); cancel_delayed_work_sync(&qp->link_work); diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index 95655d7c0d0b..e52d7ffa38b9 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -410,7 +410,7 @@ EXPORT_SYMBOL_GPL(pci_disable_pasid); * Otherwise is returns a bitmask with supported features. Current * features reported are: * PCI_PASID_CAP_EXEC - Execute permission supported - * PCI_PASID_CAP_PRIV - Priviledged mode supported + * PCI_PASID_CAP_PRIV - Privileged mode supported */ int pci_pasid_features(struct pci_dev *pdev) { diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 7c4f38dd42ba..0afbbbc55c81 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -249,7 +249,7 @@ struct tegra_pcie { void __iomem *afi; int irq; - struct list_head busses; + struct list_head buses; struct resource *cs; struct resource io; @@ -399,14 +399,14 @@ free: /* * Look up a virtual address mapping for the specified bus number. If no such - * mapping existis, try to create one. + * mapping exists, try to create one. */ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie, unsigned int busnr) { struct tegra_pcie_bus *bus; - list_for_each_entry(bus, &pcie->busses, list) + list_for_each_entry(bus, &pcie->buses, list) if (bus->nr == busnr) return (void __iomem *)bus->area->addr; @@ -414,7 +414,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie, if (IS_ERR(bus)) return NULL; - list_add_tail(&bus->list, &pcie->busses); + list_add_tail(&bus->list, &pcie->buses); return (void __iomem *)bus->area->addr; } @@ -808,7 +808,7 @@ static int tegra_pcie_enable_controller(struct tegra_pcie *pcie) value &= ~AFI_FUSE_PCIE_T0_GEN2_DIS; afi_writel(pcie, value, AFI_FUSE); - /* initialze internal PHY, enable up to 16 PCIE lanes */ + /* initialize internal PHY, enable up to 16 PCIE lanes */ pads_writel(pcie, 0x0, PADS_CTL_SEL); /* override IDDQ to 1 on all 4 lanes */ @@ -1624,7 +1624,7 @@ static int tegra_pcie_probe(struct platform_device *pdev) if (!pcie) return -ENOMEM; - INIT_LIST_HEAD(&pcie->busses); + INIT_LIST_HEAD(&pcie->buses); INIT_LIST_HEAD(&pcie->ports); pcie->soc_data = match->data; pcie->dev = &pdev->dev; diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 1e1fea4d959b..e33b68be0391 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -197,7 +197,7 @@ static int find_valid_pos0(struct pcie_port *pp, int msgvec, int pos, int *pos0) return -ENOSPC; /* * Check if this position is at correct offset.nvec is always a - * power of two. pos0 must be nvec bit alligned. + * power of two. pos0 must be nvec bit aligned. */ if (pos % msgvec) pos += msgvec - (pos % msgvec); diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 0a648af89531..df8caec59789 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -133,8 +133,8 @@ config HOTPLUG_PCI_RPA_DLPAR To compile this driver as a module, choose M here: the module will be called rpadlpar_io. - - When in doubt, say N. + + When in doubt, say N. config HOTPLUG_PCI_SGI tristate "SGI PCI Hotplug Support" diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile index 47ec8c80e16d..3e6532b945c1 100644 --- a/drivers/pci/hotplug/Makefile +++ b/drivers/pci/hotplug/Makefile @@ -31,7 +31,7 @@ pci_hotplug-objs += cpci_hotplug_core.o \ cpci_hotplug_pci.o endif ifdef CONFIG_ACPI -pci_hotplug-objs += acpi_pcihp.o +pci_hotplug-objs += acpi_pcihp.o endif cpqphp-objs := cpqphp_core.o \ diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c index 1ce8ee054f1a..a94d850ae228 100644 --- a/drivers/pci/hotplug/acpi_pcihp.c +++ b/drivers/pci/hotplug/acpi_pcihp.c @@ -367,7 +367,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags) string = (struct acpi_buffer){ ACPI_ALLOCATE_BUFFER, NULL }; } - handle = DEVICE_ACPI_HANDLE(&pdev->dev); + handle = ACPI_HANDLE(&pdev->dev); if (!handle) { /* * This hotplug controller was not listed in the ACPI name diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index 26100f510b10..1592dbe4f904 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -176,7 +176,6 @@ u8 acpiphp_get_latch_status(struct acpiphp_slot *slot); u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot); /* variables */ -extern bool acpiphp_debug; extern bool acpiphp_disabled; #endif /* _ACPIPHP_H */ diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c index 8650d39db392..dca66bc44578 100644 --- a/drivers/pci/hotplug/acpiphp_core.c +++ b/drivers/pci/hotplug/acpiphp_core.c @@ -111,7 +111,7 @@ int acpiphp_register_attention(struct acpiphp_attention_info *info) * @info: must match the pointer used to register * * Description: This is used to un-register a hardware specific acpi - * driver that manipulates the attention LED. The pointer to the + * driver that manipulates the attention LED. The pointer to the * info struct must be the same as the one used to set it. */ int acpiphp_unregister_attention(struct acpiphp_attention_info *info) @@ -169,8 +169,8 @@ static int disable_slot(struct hotplug_slot *hotplug_slot) * was registered with us. This allows hardware specific * ACPI implementations to blink the light for us. */ - static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status) - { +static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status) +{ int retval = -ENODEV; pr_debug("%s - physical_slot = %s\n", __func__, @@ -182,8 +182,8 @@ static int disable_slot(struct hotplug_slot *hotplug_slot) } else attention_info = NULL; return retval; - } - +} + /** * get_power_status - get power status of a slot @@ -323,7 +323,7 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot, if (retval) { pr_err("pci_hp_register failed with error %d\n", retval); goto error_hpslot; - } + } pr_info("Slot [%s] registered\n", slot_name(slot)); diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 5b4e9eb0e8ff..1cf605f67673 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -325,7 +325,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data, list_add_tail(&slot->node, &bridge->slots); - /* Register slots for ejectable funtions only. */ + /* Register slots for ejectable functions only. */ if (acpi_pci_check_ejectable(pbus, handle) || is_dock_device(handle)) { unsigned long long sun; int retval; diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index 0d64c414bf78..ecfac7e72d91 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -116,7 +116,7 @@ static struct bin_attribute ibm_apci_table_attr = { .read = ibm_read_apci_table, .write = NULL, }; -static struct acpiphp_attention_info ibm_attention_info = +static struct acpiphp_attention_info ibm_attention_info = { .set_attn = ibm_set_attention_status, .get_attn = ibm_get_attention_status, @@ -171,9 +171,9 @@ ibm_slot_done: */ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status) { - union acpi_object args[2]; + union acpi_object args[2]; struct acpi_object_list params = { .pointer = args, .count = 2 }; - acpi_status stat; + acpi_status stat; unsigned long long rc; union apci_descriptor *ibm_slot; @@ -208,7 +208,7 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status) * * Description: This method is registered with the acpiphp module as a * callback to do the device specific task of getting the LED status. - * + * * Because there is no direct method of getting the LED status directly * from an ACPI call, we read the aPCI table and parse out our * slot descriptor to read the status from that. @@ -259,7 +259,7 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context) pr_debug("%s: Received notification %02x\n", __func__, event); if (subevent == 0x80) { - pr_debug("%s: generationg bus event\n", __func__); + pr_debug("%s: generating bus event\n", __func__); acpi_bus_generate_netlink_event(note->device->pnp.device_class, dev_name(¬e->device->dev), note->event, detail); @@ -387,7 +387,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle, u32 lvl, void *context, void **rv) { acpi_handle *phandle = (acpi_handle *)context; - acpi_status status; + acpi_status status; struct acpi_device_info *info; int retval = 0; @@ -405,7 +405,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle, info->hardware_id.string, handle); *phandle = handle; /* returning non-zero causes the search to stop - * and returns this value to the caller of + * and returns this value to the caller of * acpi_walk_namespace, but it also causes some warnings * in the acpi debug code to print... */ diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c index 2b4c412f94c3..00c81a3cefc9 100644 --- a/drivers/pci/hotplug/cpci_hotplug_core.c +++ b/drivers/pci/hotplug/cpci_hotplug_core.c @@ -46,7 +46,7 @@ do { \ if (cpci_debug) \ printk (KERN_DEBUG "%s: " format "\n", \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c index d8add34177f2..d3add9819f63 100644 --- a/drivers/pci/hotplug/cpci_hotplug_pci.c +++ b/drivers/pci/hotplug/cpci_hotplug_pci.c @@ -39,7 +39,7 @@ extern int cpci_debug; do { \ if (cpci_debug) \ printk (KERN_DEBUG "%s: " format "\n", \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c index a6a71c41cdf8..7536eef620b0 100644 --- a/drivers/pci/hotplug/cpcihp_generic.c +++ b/drivers/pci/hotplug/cpcihp_generic.c @@ -13,14 +13,14 @@ * option) any later version. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along @@ -53,9 +53,9 @@ #define dbg(format, arg...) \ do { \ - if(debug) \ + if (debug) \ printk (KERN_DEBUG "%s: " format "\n", \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while(0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c index 449b4bbc8301..e8c4a7ccf578 100644 --- a/drivers/pci/hotplug/cpcihp_zt5550.c +++ b/drivers/pci/hotplug/cpcihp_zt5550.c @@ -13,14 +13,14 @@ * option) any later version. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along @@ -48,9 +48,9 @@ #define dbg(format, arg...) \ do { \ - if(debug) \ + if (debug) \ printk (KERN_DEBUG "%s: " format "\n", \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while(0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) @@ -285,7 +285,7 @@ static struct pci_device_id zt5550_hc_pci_tbl[] = { { 0, } }; MODULE_DEVICE_TABLE(pci, zt5550_hc_pci_tbl); - + static struct pci_driver zt5550_hc_driver = { .name = "zt5550_hc", .id_table = zt5550_hc_pci_tbl, diff --git a/drivers/pci/hotplug/cpcihp_zt5550.h b/drivers/pci/hotplug/cpcihp_zt5550.h index bebc6060a558..9a57fda5348c 100644 --- a/drivers/pci/hotplug/cpcihp_zt5550.h +++ b/drivers/pci/hotplug/cpcihp_zt5550.h @@ -13,14 +13,14 @@ * option) any later version. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL - * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along @@ -55,7 +55,7 @@ #define HC_CMD_REG 0x0C #define ARB_CONFIG_GNT_REG 0x10 #define ARB_CONFIG_CFG_REG 0x12 -#define ARB_CONFIG_REG 0x10 +#define ARB_CONFIG_REG 0x10 #define ISOL_CONFIG_REG 0x18 #define FAULT_STATUS_REG 0x20 #define FAULT_CONFIG_REG 0x24 diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index c8eaeb43fa5d..31273e155e6c 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -862,10 +862,10 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_disable_device; } - /* Check for the proper subsystem ID's + /* Check for the proper subsystem IDs * Intel uses a different SSID programming model than Compaq. * For Intel, each SSID bit identifies a PHP capability. - * Also Intel HPC's may have RID=0. + * Also Intel HPCs may have RID=0. */ if ((pdev->revision <= 2) && (vendor_id != PCI_VENDOR_ID_INTEL)) { err(msg_HPC_not_supported); diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index d282019cda5f..11845b796799 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -1231,7 +1231,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_ /* Only if mode change...*/ if (((bus->cur_bus_speed == PCI_SPEED_66MHz) && (adapter_speed == PCI_SPEED_66MHz_PCIX)) || - ((bus->cur_bus_speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz))) + ((bus->cur_bus_speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz))) set_SOGO(ctrl); wait_for_ctrl_irq(ctrl); @@ -1828,7 +1828,7 @@ static void interrupt_event_handler(struct controller *ctrl) if (ctrl->event_queue[loop].event_type == INT_BUTTON_PRESS) { dbg("button pressed\n"); - } else if (ctrl->event_queue[loop].event_type == + } else if (ctrl->event_queue[loop].event_type == INT_BUTTON_CANCEL) { dbg("button cancel\n"); del_timer(&p_slot->task_event); @@ -2411,11 +2411,11 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func if (rc) return rc; - /* find range of busses to use */ + /* find range of buses to use */ dbg("find ranges of buses to use\n"); bus_node = get_max_resource(&(resources->bus_head), 1); - /* If we don't have any busses to allocate, we can't continue */ + /* If we don't have any buses to allocate, we can't continue */ if (!bus_node) return -ENOMEM; @@ -2900,7 +2900,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func /* If this function needs an interrupt and we are behind * a bridge and the pin is tied to something that's - * alread mapped, set this one the same */ + * already mapped, set this one the same */ if (temp_byte && resources->irqs && (resources->irqs->valid_INT & (0x01 << ((temp_byte + resources->irqs->barber_pole - 1) & 0x03)))) { diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c index 09801c6945ce..6e4a12c91adb 100644 --- a/drivers/pci/hotplug/cpqphp_pci.c +++ b/drivers/pci/hotplug/cpqphp_pci.c @@ -291,7 +291,7 @@ int cpqhp_get_bus_dev (struct controller *ctrl, u8 * bus_num, u8 * dev_num, u8 s * * Reads configuration for all slots in a PCI bus and saves info. * - * Note: For non-hot plug busses, the slot # saved is the device # + * Note: For non-hot plug buses, the slot # saved is the device # * * returns 0 if success */ @@ -455,7 +455,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug) * cpqhp_save_slot_config * * Saves configuration info for all PCI devices in a given slot - * including subordinate busses. + * including subordinate buses. * * returns 0 if success */ @@ -1556,4 +1556,3 @@ void cpqhp_destroy_board_resources (struct pci_func * func) kfree(tres); } } - diff --git a/drivers/pci/hotplug/ibmphp.h b/drivers/pci/hotplug/ibmphp.h index 8c5b25871d02..e3e46a7b3ee7 100644 --- a/drivers/pci/hotplug/ibmphp.h +++ b/drivers/pci/hotplug/ibmphp.h @@ -59,7 +59,7 @@ extern int ibmphp_debug; /************************************************************ -* RESOURE TYPE * +* RESOURCE TYPE * ************************************************************/ #define EBDA_RSRC_TYPE_MASK 0x03 @@ -103,7 +103,7 @@ extern int ibmphp_debug; //-------------------------------------------------------------- struct rio_table_hdr { - u8 ver_num; + u8 ver_num; u8 scal_count; u8 riodev_count; u16 offset; @@ -127,7 +127,7 @@ struct scal_detail { }; //-------------------------------------------------------------- -// RIO DETAIL +// RIO DETAIL //-------------------------------------------------------------- struct rio_detail { @@ -152,7 +152,7 @@ struct opt_rio { u8 first_slot_num; u8 middle_num; struct list_head opt_rio_list; -}; +}; struct opt_rio_lo { u8 rio_type; @@ -161,7 +161,7 @@ struct opt_rio_lo { u8 middle_num; u8 pack_count; struct list_head opt_rio_lo_list; -}; +}; /**************************************************************** * HPC DESCRIPTOR NODE * @@ -574,7 +574,7 @@ void ibmphp_hpc_stop_poll_thread(void); #define HPC_CTLR_IRQ_PENDG 0x80 //---------------------------------------------------------------------------- -// HPC_CTLR_WROKING status return codes +// HPC_CTLR_WORKING status return codes //---------------------------------------------------------------------------- #define HPC_CTLR_WORKING_NO 0x00 #define HPC_CTLR_WORKING_YES 0x01 diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c index cbd72d81d253..efdc13adbe41 100644 --- a/drivers/pci/hotplug/ibmphp_core.c +++ b/drivers/pci/hotplug/ibmphp_core.c @@ -58,7 +58,7 @@ MODULE_DESCRIPTION (DRIVER_DESC); struct pci_bus *ibmphp_pci_bus; static int max_slots; -static int irqs[16]; /* PIC mode IRQ's we're using so far (in case MPS +static int irqs[16]; /* PIC mode IRQs we're using so far (in case MPS * tables don't provide default info for empty slots */ static int init_flag; @@ -71,20 +71,20 @@ static inline int get_max_adapter_speed (struct hotplug_slot *hs, u8 *value) return get_max_adapter_speed_1 (hs, value, 1); } */ -static inline int get_cur_bus_info(struct slot **sl) +static inline int get_cur_bus_info(struct slot **sl) { int rc = 1; struct slot * slot_cur = *sl; debug("options = %x\n", slot_cur->ctrl->options); - debug("revision = %x\n", slot_cur->ctrl->revision); + debug("revision = %x\n", slot_cur->ctrl->revision); - if (READ_BUS_STATUS(slot_cur->ctrl)) + if (READ_BUS_STATUS(slot_cur->ctrl)) rc = ibmphp_hpc_readslot(slot_cur, READ_BUSSTATUS, NULL); - - if (rc) + + if (rc) return rc; - + slot_cur->bus_on->current_speed = CURRENT_BUS_SPEED(slot_cur->busstatus); if (READ_BUS_MODE(slot_cur->ctrl)) slot_cur->bus_on->current_bus_mode = @@ -96,7 +96,7 @@ static inline int get_cur_bus_info(struct slot **sl) slot_cur->busstatus, slot_cur->bus_on->current_speed, slot_cur->bus_on->current_bus_mode); - + *sl = slot_cur; return 0; } @@ -104,8 +104,8 @@ static inline int get_cur_bus_info(struct slot **sl) static inline int slot_update(struct slot **sl) { int rc; - rc = ibmphp_hpc_readslot(*sl, READ_ALLSTAT, NULL); - if (rc) + rc = ibmphp_hpc_readslot(*sl, READ_ALLSTAT, NULL); + if (rc) return rc; if (!init_flag) rc = get_cur_bus_info(sl); @@ -172,7 +172,7 @@ int ibmphp_init_devno(struct slot **cur_slot) debug("(*cur_slot)->irq[3] = %x\n", (*cur_slot)->irq[3]); - debug("rtable->exlusive_irqs = %x\n", + debug("rtable->exclusive_irqs = %x\n", rtable->exclusive_irqs); debug("rtable->slots[loop].irq[0].bitmap = %x\n", rtable->slots[loop].irq[0].bitmap); @@ -271,7 +271,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 value) else rc = -ENODEV; } - } else + } else rc = -ENODEV; ibmphp_unlock_operations(); @@ -288,7 +288,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 * value) debug("get_attention_status - Entry hotplug_slot[%lx] pvalue[%lx]\n", (ulong) hotplug_slot, (ulong) value); - + ibmphp_lock_operations(); if (hotplug_slot) { pslot = hotplug_slot->private; @@ -406,14 +406,14 @@ static int get_max_bus_speed(struct slot *slot) ibmphp_lock_operations(); mode = slot->supported_bus_mode; - speed = slot->supported_speed; + speed = slot->supported_speed; ibmphp_unlock_operations(); switch (speed) { case BUS_SPEED_33: break; case BUS_SPEED_66: - if (mode == BUS_MODE_PCIX) + if (mode == BUS_MODE_PCIX) speed += 0x01; break; case BUS_SPEED_100: @@ -515,13 +515,13 @@ static int __init init_ops(void) debug("BEFORE GETTING SLOT STATUS, slot # %x\n", slot_cur->number); - if (slot_cur->ctrl->revision == 0xFF) + if (slot_cur->ctrl->revision == 0xFF) if (get_ctrl_revision(slot_cur, &slot_cur->ctrl->revision)) return -1; - if (slot_cur->bus_on->current_speed == 0xFF) - if (get_cur_bus_info(&slot_cur)) + if (slot_cur->bus_on->current_speed == 0xFF) + if (get_cur_bus_info(&slot_cur)) return -1; get_max_bus_speed(slot_cur); @@ -539,8 +539,8 @@ static int __init init_ops(void) debug("SLOT_PRESENT = %x\n", SLOT_PRESENT(slot_cur->status)); debug("SLOT_LATCH = %x\n", SLOT_LATCH(slot_cur->status)); - if ((SLOT_PWRGD(slot_cur->status)) && - !(SLOT_PRESENT(slot_cur->status)) && + if ((SLOT_PWRGD(slot_cur->status)) && + !(SLOT_PRESENT(slot_cur->status)) && !(SLOT_LATCH(slot_cur->status))) { debug("BEFORE POWER OFF COMMAND\n"); rc = power_off(slot_cur); @@ -581,13 +581,13 @@ static int validate(struct slot *slot_cur, int opn) switch (opn) { case ENABLE: - if (!(SLOT_PWRGD(slot_cur->status)) && - (SLOT_PRESENT(slot_cur->status)) && + if (!(SLOT_PWRGD(slot_cur->status)) && + (SLOT_PRESENT(slot_cur->status)) && !(SLOT_LATCH(slot_cur->status))) return 0; break; case DISABLE: - if ((SLOT_PWRGD(slot_cur->status)) && + if ((SLOT_PWRGD(slot_cur->status)) && (SLOT_PRESENT(slot_cur->status)) && !(SLOT_LATCH(slot_cur->status))) return 0; @@ -617,7 +617,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur) err("out of system memory\n"); return -ENOMEM; } - + info->power_status = SLOT_PWRGD(slot_cur->status); info->attention_status = SLOT_ATTN(slot_cur->status, slot_cur->ext_status); @@ -638,7 +638,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur) case BUS_SPEED_33: break; case BUS_SPEED_66: - if (mode == BUS_MODE_PCIX) + if (mode == BUS_MODE_PCIX) bus_speed += 0x01; else if (mode == BUS_MODE_PCI) ; @@ -654,8 +654,8 @@ int ibmphp_update_slot_info(struct slot *slot_cur) } bus->cur_bus_speed = bus_speed; - // To do: bus_names - + // To do: bus_names + rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info); kfree(info); return rc; @@ -729,8 +729,8 @@ static void ibm_unconfigure_device(struct pci_func *func) } /* - * The following function is to fix kernel bug regarding - * getting bus entries, here we manually add those primary + * The following function is to fix kernel bug regarding + * getting bus entries, here we manually add those primary * bus entries to kernel bus structure whenever apply */ static u8 bus_structure_fixup(u8 busno) @@ -814,7 +814,7 @@ static int ibm_configure_device(struct pci_func *func) } /******************************************************* - * Returns whether the bus is empty or not + * Returns whether the bus is empty or not *******************************************************/ static int is_bus_empty(struct slot * slot_cur) { @@ -842,7 +842,7 @@ static int is_bus_empty(struct slot * slot_cur) } /*********************************************************** - * If the HPC permits and the bus currently empty, tries to set the + * If the HPC permits and the bus currently empty, tries to set the * bus speed and mode at the maximum card and bus capability * Parameters: slot * Returns: bus is set (0) or error code @@ -856,7 +856,7 @@ static int set_bus(struct slot * slot_cur) static struct pci_device_id ciobx[] = { { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, 0x0101) }, { }, - }; + }; debug("%s - entry slot # %d\n", __func__, slot_cur->number); if (SET_BUS_STATUS(slot_cur->ctrl) && is_bus_empty(slot_cur)) { @@ -877,7 +877,7 @@ static int set_bus(struct slot * slot_cur) else if (!SLOT_BUS_MODE(slot_cur->ext_status)) /* if max slot/bus capability is 66 pci and there's no bus mode mismatch, then - the adapter supports 66 pci */ + the adapter supports 66 pci */ cmd = HPC_BUS_66CONVMODE; else cmd = HPC_BUS_33CONVMODE; @@ -930,7 +930,7 @@ static int set_bus(struct slot * slot_cur) return -EIO; } } - /* This is for x440, once Brandon fixes the firmware, + /* This is for x440, once Brandon fixes the firmware, will not need this delay */ msleep(1000); debug("%s -Exit\n", __func__); @@ -938,9 +938,9 @@ static int set_bus(struct slot * slot_cur) } /* This routine checks the bus limitations that the slot is on from the BIOS. - * This is used in deciding whether or not to power up the slot. + * This is used in deciding whether or not to power up the slot. * (electrical/spec limitations. For example, >1 133 MHz or >2 66 PCI cards on - * same bus) + * same bus) * Parameters: slot * Returns: 0 = no limitations, -EINVAL = exceeded limitations on the bus */ @@ -986,7 +986,7 @@ static int check_limitations(struct slot *slot_cur) static inline void print_card_capability(struct slot *slot_cur) { info("capability of the card is "); - if ((slot_cur->ext_status & CARD_INFO) == PCIX133) + if ((slot_cur->ext_status & CARD_INFO) == PCIX133) info(" 133 MHz PCI-X\n"); else if ((slot_cur->ext_status & CARD_INFO) == PCIX66) info(" 66 MHz PCI-X\n"); @@ -1020,7 +1020,7 @@ static int enable_slot(struct hotplug_slot *hs) } attn_LED_blink(slot_cur); - + rc = set_bus(slot_cur); if (rc) { err("was not able to set the bus\n"); @@ -1082,7 +1082,7 @@ static int enable_slot(struct hotplug_slot *hs) rc = slot_update(&slot_cur); if (rc) goto error_power; - + rc = -EINVAL; if (SLOT_POWER(slot_cur->status) && !(SLOT_PWRGD(slot_cur->status))) { err("power fault occurred trying to power up...\n"); @@ -1093,7 +1093,7 @@ static int enable_slot(struct hotplug_slot *hs) "speed and card capability\n"); print_card_capability(slot_cur); goto error_power; - } + } /* Don't think this case will happen after above checks... * but just in case, for paranoia sake */ if (!(SLOT_POWER(slot_cur->status))) { @@ -1144,7 +1144,7 @@ static int enable_slot(struct hotplug_slot *hs) ibmphp_print_test(); rc = ibmphp_update_slot_info(slot_cur); exit: - ibmphp_unlock_operations(); + ibmphp_unlock_operations(); return rc; error_nopower: @@ -1180,7 +1180,7 @@ static int ibmphp_disable_slot(struct hotplug_slot *hotplug_slot) { struct slot *slot = hotplug_slot->private; int rc; - + ibmphp_lock_operations(); rc = ibmphp_do_disable_slot(slot); ibmphp_unlock_operations(); @@ -1192,12 +1192,12 @@ int ibmphp_do_disable_slot(struct slot *slot_cur) int rc; u8 flag; - debug("DISABLING SLOT...\n"); - + debug("DISABLING SLOT...\n"); + if ((slot_cur == NULL) || (slot_cur->ctrl == NULL)) { return -ENODEV; } - + flag = slot_cur->flag; slot_cur->flag = 1; @@ -1210,7 +1210,7 @@ int ibmphp_do_disable_slot(struct slot *slot_cur) attn_LED_blink(slot_cur); if (slot_cur->func == NULL) { - /* We need this for fncs's that were there on bootup */ + /* We need this for functions that were there on bootup */ slot_cur->func = kzalloc(sizeof(struct pci_func), GFP_KERNEL); if (!slot_cur->func) { err("out of system memory\n"); @@ -1222,12 +1222,13 @@ int ibmphp_do_disable_slot(struct slot *slot_cur) } ibm_unconfigure_device(slot_cur->func); - - /* If we got here from latch suddenly opening on operating card or - a power fault, there's no power to the card, so cannot - read from it to determine what resources it occupied. This operation - is forbidden anyhow. The best we can do is remove it from kernel - lists at least */ + + /* + * If we got here from latch suddenly opening on operating card or + * a power fault, there's no power to the card, so cannot + * read from it to determine what resources it occupied. This operation + * is forbidden anyhow. The best we can do is remove it from kernel + * lists at least */ if (!flag) { attn_off(slot_cur); @@ -1264,7 +1265,7 @@ error: rc = -EFAULT; goto exit; } - if (flag) + if (flag) ibmphp_update_slot_info(slot_cur); goto exit; } @@ -1339,7 +1340,7 @@ static int __init ibmphp_init(void) debug("AFTER Resource & EBDA INITIALIZATIONS\n"); max_slots = get_max_slots(); - + if ((rc = ibmphp_register_pci())) goto error; diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c index 9df78bc14541..bd044158b36c 100644 --- a/drivers/pci/hotplug/ibmphp_ebda.c +++ b/drivers/pci/hotplug/ibmphp_ebda.c @@ -123,7 +123,7 @@ static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc (void) static void __init print_bus_info (void) { struct bus_info *ptr; - + list_for_each_entry(ptr, &bus_info_head, bus_info_list) { debug ("%s - slot_min = %x\n", __func__, ptr->slot_min); debug ("%s - slot_max = %x\n", __func__, ptr->slot_max); @@ -131,7 +131,7 @@ static void __init print_bus_info (void) debug ("%s - bus# = %x\n", __func__, ptr->busno); debug ("%s - current_speed = %x\n", __func__, ptr->current_speed); debug ("%s - controller_id = %x\n", __func__, ptr->controller_id); - + debug ("%s - slots_at_33_conv = %x\n", __func__, ptr->slots_at_33_conv); debug ("%s - slots_at_66_conv = %x\n", __func__, ptr->slots_at_66_conv); debug ("%s - slots_at_66_pcix = %x\n", __func__, ptr->slots_at_66_pcix); @@ -144,7 +144,7 @@ static void __init print_bus_info (void) static void print_lo_info (void) { struct rio_detail *ptr; - debug ("print_lo_info ----\n"); + debug ("print_lo_info ----\n"); list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) { debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id); debug ("%s - rio_type = %x\n", __func__, ptr->rio_type); @@ -176,7 +176,7 @@ static void __init print_ebda_pci_rsrc (void) struct ebda_pci_rsrc *ptr; list_for_each_entry(ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) { - debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", + debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", __func__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr); } } @@ -259,7 +259,7 @@ int __init ibmphp_access_ebda (void) ebda_seg = readw (io_mem); iounmap (io_mem); debug ("returned ebda segment: %x\n", ebda_seg); - + io_mem = ioremap(ebda_seg<<4, 1); if (!io_mem) return -ENOMEM; @@ -310,7 +310,7 @@ int __init ibmphp_access_ebda (void) re = readw (io_mem + sub_addr); /* next sub blk */ sub_addr += 2; - rc_id = readw (io_mem + sub_addr); /* sub blk id */ + rc_id = readw (io_mem + sub_addr); /* sub blk id */ sub_addr += 2; if (rc_id != 0x5243) @@ -330,7 +330,7 @@ int __init ibmphp_access_ebda (void) debug ("info about hpc descriptor---\n"); debug ("hot blk format: %x\n", format); debug ("num of controller: %x\n", num_ctlrs); - debug ("offset of hpc data structure enteries: %x\n ", sub_addr); + debug ("offset of hpc data structure entries: %x\n ", sub_addr); sub_addr = base + re; /* re sub blk */ /* FIXME: rc is never used/checked */ @@ -359,7 +359,7 @@ int __init ibmphp_access_ebda (void) debug ("info about rsrc descriptor---\n"); debug ("format: %x\n", format); debug ("num of rsrc: %x\n", num_entries); - debug ("offset of rsrc data structure enteries: %x\n ", sub_addr); + debug ("offset of rsrc data structure entries: %x\n ", sub_addr); hs_complete = 1; } else { @@ -376,7 +376,7 @@ int __init ibmphp_access_ebda (void) rio_table_ptr->scal_count = readb (io_mem + offset + 1); rio_table_ptr->riodev_count = readb (io_mem + offset + 2); rio_table_ptr->offset = offset +3 ; - + debug("info about rio table hdr ---\n"); debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ", rio_table_ptr->ver_num, rio_table_ptr->scal_count, @@ -440,12 +440,12 @@ static int __init ebda_rio_table (void) rio_detail_ptr->chassis_num = readb (io_mem + offset + 14); // debug ("rio_node_id: %x\nbbar: %x\nrio_type: %x\nowner_id: %x\nport0_node: %x\nport0_port: %x\nport1_node: %x\nport1_port: %x\nfirst_slot_num: %x\nstatus: %x\n", rio_detail_ptr->rio_node_id, rio_detail_ptr->bbar, rio_detail_ptr->rio_type, rio_detail_ptr->owner_id, rio_detail_ptr->port0_node_connect, rio_detail_ptr->port0_port_connect, rio_detail_ptr->port1_node_connect, rio_detail_ptr->port1_port_connect, rio_detail_ptr->first_slot_num, rio_detail_ptr->status); //create linked list of chassis - if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) + if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) list_add (&rio_detail_ptr->rio_detail_list, &rio_vg_head); - //create linked list of expansion box - else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) + //create linked list of expansion box + else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) list_add (&rio_detail_ptr->rio_detail_list, &rio_lo_head); - else + else // not in my concern kfree (rio_detail_ptr); offset += 15; @@ -456,7 +456,7 @@ static int __init ebda_rio_table (void) } /* - * reorganizing linked list of chassis + * reorganizing linked list of chassis */ static struct opt_rio *search_opt_vg (u8 chassis_num) { @@ -464,7 +464,7 @@ static struct opt_rio *search_opt_vg (u8 chassis_num) list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { if (ptr->chassis_num == chassis_num) return ptr; - } + } return NULL; } @@ -472,7 +472,7 @@ static int __init combine_wpg_for_chassis (void) { struct opt_rio *opt_rio_ptr = NULL; struct rio_detail *rio_detail_ptr = NULL; - + list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) { opt_rio_ptr = search_opt_vg (rio_detail_ptr->chassis_num); if (!opt_rio_ptr) { @@ -484,14 +484,14 @@ static int __init combine_wpg_for_chassis (void) opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num; opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num; list_add (&opt_rio_ptr->opt_rio_list, &opt_vg_head); - } else { + } else { opt_rio_ptr->first_slot_num = min (opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num); opt_rio_ptr->middle_num = max (opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num); - } + } } print_opt_vg (); - return 0; -} + return 0; +} /* * reorganizing linked list of expansion box @@ -502,7 +502,7 @@ static struct opt_rio_lo *search_opt_lo (u8 chassis_num) list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) { if (ptr->chassis_num == chassis_num) return ptr; - } + } return NULL; } @@ -510,7 +510,7 @@ static int combine_wpg_for_expansion (void) { struct opt_rio_lo *opt_rio_lo_ptr = NULL; struct rio_detail *rio_detail_ptr = NULL; - + list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) { opt_rio_lo_ptr = search_opt_lo (rio_detail_ptr->chassis_num); if (!opt_rio_lo_ptr) { @@ -522,22 +522,22 @@ static int combine_wpg_for_expansion (void) opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num; opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num; opt_rio_lo_ptr->pack_count = 1; - + list_add (&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head); - } else { + } else { opt_rio_lo_ptr->first_slot_num = min (opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num); opt_rio_lo_ptr->middle_num = max (opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num); opt_rio_lo_ptr->pack_count = 2; - } + } } - return 0; + return 0; } - + /* Since we don't know the max slot number per each chassis, hence go * through the list of all chassis to find out the range - * Arguments: slot_num, 1st slot number of the chassis we think we are on, - * var (0 = chassis, 1 = expansion box) + * Arguments: slot_num, 1st slot number of the chassis we think we are on, + * var (0 = chassis, 1 = expansion box) */ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var) { @@ -547,7 +547,7 @@ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var) if (!var) { list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { - if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { + if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { rc = -ENODEV; break; } @@ -569,7 +569,7 @@ static struct opt_rio_lo * find_rxe_num (u8 slot_num) list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { //check to see if this slot_num belongs to expansion box - if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) + if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) return opt_lo_ptr; } return NULL; @@ -580,8 +580,8 @@ static struct opt_rio * find_chassis_num (u8 slot_num) struct opt_rio *opt_vg_ptr; list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { - //check to see if this slot_num belongs to chassis - if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) + //check to see if this slot_num belongs to chassis + if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) return opt_vg_ptr; } return NULL; @@ -594,13 +594,13 @@ static u8 calculate_first_slot (u8 slot_num) { u8 first_slot = 1; struct slot * slot_cur; - + list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) { if (slot_cur->ctrl) { - if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) + if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) first_slot = slot_cur->ctrl->ending_slot_num; } - } + } return first_slot + 1; } @@ -622,11 +622,11 @@ static char *create_file_name (struct slot * slot_cur) err ("Structure passed is empty\n"); return NULL; } - + slot_num = slot_cur->number; memset (str, 0, sizeof(str)); - + if (rio_table_ptr) { if (rio_table_ptr->ver_num == 3) { opt_vg_ptr = find_chassis_num (slot_num); @@ -660,7 +660,7 @@ static char *create_file_name (struct slot * slot_cur) /* if both NULL and we DO have correct RIO table in BIOS */ return NULL; } - } + } if (!flag) { if (slot_cur->ctrl->ctlr_type == 4) { first_slot = calculate_first_slot (slot_num); @@ -798,7 +798,7 @@ static int __init ebda_rsrc_controller (void) slot_ptr->ctl_index = readb (io_mem + addr_slot + 2*slot_num); slot_ptr->slot_cap = readb (io_mem + addr_slot + 3*slot_num); - // create bus_info lined list --- if only one slot per bus: slot_min = slot_max + // create bus_info lined list --- if only one slot per bus: slot_min = slot_max bus_info_ptr2 = ibmphp_find_same_bus_num (slot_ptr->slot_bus_num); if (!bus_info_ptr2) { @@ -814,9 +814,9 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr1->index = bus_index++; bus_info_ptr1->current_speed = 0xff; bus_info_ptr1->current_bus_mode = 0xff; - + bus_info_ptr1->controller_id = hpc_ptr->ctlr_id; - + list_add_tail (&bus_info_ptr1->bus_info_list, &bus_info_head); } else { @@ -851,7 +851,7 @@ static int __init ebda_rsrc_controller (void) bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv; bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix; bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix; - bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; + bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; } bus_ptr++; } @@ -864,7 +864,7 @@ static int __init ebda_rsrc_controller (void) hpc_ptr->u.pci_ctlr.dev_fun = readb (io_mem + addr + 1); hpc_ptr->irq = readb (io_mem + addr + 2); addr += 3; - debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", + debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", hpc_ptr->u.pci_ctlr.bus, hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq); break; @@ -932,7 +932,7 @@ static int __init ebda_rsrc_controller (void) tmp_slot->supported_speed = 2; else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX) tmp_slot->supported_speed = 1; - + if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP) tmp_slot->supported_bus_mode = 1; else @@ -1000,7 +1000,7 @@ error_no_hpc: return rc; } -/* +/* * map info (bus, devfun, start addr, end addr..) of i/o, memory, * pfm from the physical addr to a list of resource. */ @@ -1057,7 +1057,7 @@ static int __init ebda_rsrc_rsrc (void) addr += 10; debug ("rsrc from mem or pfm ---\n"); - debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", + debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); list_add (&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); @@ -1096,7 +1096,7 @@ struct bus_info *ibmphp_find_same_bus_num (u32 num) struct bus_info *ptr; list_for_each_entry(ptr, &bus_info_head, bus_info_list) { - if (ptr->busno == num) + if (ptr->busno == num) return ptr; } return NULL; @@ -1110,7 +1110,7 @@ int ibmphp_get_bus_index (u8 num) struct bus_info *ptr; list_for_each_entry(ptr, &bus_info_head, bus_info_list) { - if (ptr->busno == num) + if (ptr->busno == num) return ptr->index; } return -ENODEV; @@ -1168,7 +1168,7 @@ static struct pci_device_id id_table[] = { .subdevice = HPC_SUBSYSTEM_ID, .class = ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00), }, {} -}; +}; MODULE_DEVICE_TABLE(pci, id_table); @@ -1197,7 +1197,7 @@ static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids) struct controller *ctrl; debug ("inside ibmphp_probe\n"); - + list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { if (ctrl->ctlr_type == 1) { if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) { @@ -1210,4 +1210,3 @@ static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids) } return -ENODEV; } - diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c index f59ed30512b5..5fc7a089f532 100644 --- a/drivers/pci/hotplug/ibmphp_hpc.c +++ b/drivers/pci/hotplug/ibmphp_hpc.c @@ -258,7 +258,7 @@ static u8 i2c_ctrl_write (struct controller *ctlr_ptr, void __iomem *WPGBbar, u8 { u8 rc; void __iomem *wpg_addr; // base addr + offset - unsigned long wpg_data; // data to/from WPG LOHI format + unsigned long wpg_data; // data to/from WPG LOHI format unsigned long ultemp; unsigned long data; // actual data HILO format int i; @@ -351,7 +351,7 @@ static u8 i2c_ctrl_write (struct controller *ctlr_ptr, void __iomem *WPGBbar, u8 } //------------------------------------------------------------ -// Read from ISA type HPC +// Read from ISA type HPC //------------------------------------------------------------ static u8 isa_ctrl_read (struct controller *ctlr_ptr, u8 offset) { @@ -372,7 +372,7 @@ static void isa_ctrl_write (struct controller *ctlr_ptr, u8 offset, u8 data) { u16 start_address; u16 port_address; - + start_address = ctlr_ptr->u.isa_ctlr.io_start; port_address = start_address + (u16) offset; outb (data, port_address); @@ -656,11 +656,11 @@ int ibmphp_hpc_readslot (struct slot * pslot, u8 cmd, u8 * pstatus) //-------------------------------------------------------------------- // cleanup //-------------------------------------------------------------------- - + // remove physical to logical address mapping if ((ctlr_ptr->ctlr_type == 2) || (ctlr_ptr->ctlr_type == 4)) iounmap (wpg_bbar); - + free_hpc_access (); debug_polling ("%s - Exit rc[%d]\n", __func__, rc); @@ -835,7 +835,7 @@ static int poll_hpc(void *data) down (&semOperations); switch (poll_state) { - case POLL_LATCH_REGISTER: + case POLL_LATCH_REGISTER: oldlatchlow = curlatchlow; ctrl_count = 0x00; list_for_each (pslotlist, &ibmphp_slot_head) { @@ -892,16 +892,16 @@ static int poll_hpc(void *data) if (kthread_should_stop()) goto out_sleep; - + down (&semOperations); - + if (poll_count >= POLL_LATCH_CNT) { poll_count = 0; poll_state = POLL_SLOTS; } else poll_state = POLL_LATCH_REGISTER; break; - } + } /* give up the hardware semaphore */ up (&semOperations); /* sleep for a short time just for good measure */ @@ -958,7 +958,7 @@ static int process_changeinstatus (struct slot *pslot, struct slot *poldslot) // bit 5 - HPC_SLOT_PWRGD if ((pslot->status & 0x20) != (poldslot->status & 0x20)) // OFF -> ON: ignore, ON -> OFF: disable slot - if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) + if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) disable = 1; // bit 6 - HPC_SLOT_BUS_SPEED @@ -980,7 +980,7 @@ static int process_changeinstatus (struct slot *pslot, struct slot *poldslot) pslot->status &= ~HPC_SLOT_POWER; } } - // CLOSE -> OPEN + // CLOSE -> OPEN else if ((SLOT_PWRGD (poldslot->status) == HPC_SLOT_PWRGD_GOOD) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) { disable = 1; @@ -1075,7 +1075,7 @@ void __exit ibmphp_hpc_stop_poll_thread (void) debug ("before locking operations \n"); ibmphp_lock_operations (); debug ("after locking operations \n"); - + // wait for poll thread to exit debug ("before sem_exit down \n"); down (&sem_exit); diff --git a/drivers/pci/hotplug/ibmphp_pci.c b/drivers/pci/hotplug/ibmphp_pci.c index c60f5f3e838d..639ea3a75e14 100644 --- a/drivers/pci/hotplug/ibmphp_pci.c +++ b/drivers/pci/hotplug/ibmphp_pci.c @@ -1,8 +1,8 @@ /* * IBM Hot Plug Controller Driver - * + * * Written By: Irene Zubarev, IBM Corporation - * + * * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001,2002 IBM Corp. * @@ -42,7 +42,7 @@ static u8 find_sec_number (u8 primary_busno, u8 slotno); /* * NOTE..... If BIOS doesn't provide default routing, we assign: - * 9 for SCSI, 10 for LAN adapters, and 11 for everything else. + * 9 for SCSI, 10 for LAN adapters, and 11 for everything else. * If adapter is bridged, then we assign 11 to it and devices behind it. * We also assign the same irq numbers for multi function devices. * These are PIC mode, so shouldn't matter n.e.ways (hopefully) @@ -71,11 +71,11 @@ static void assign_alt_irq (struct pci_func * cur_func, u8 class_code) * Configures the device to be added (will allocate needed resources if it * can), the device can be a bridge or a regular pci device, can also be * multi-functional - * + * * Input: function to be added - * + * * TO DO: The error case with Multifunction device or multi function bridge, - * if there is an error, will need to go through all previous functions and + * if there is an error, will need to go through all previous functions and * unconfigure....or can add some code into unconfigure_card.... */ int ibmphp_configure_card (struct pci_func *func, u8 slotno) @@ -98,7 +98,7 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno) cur_func = func; /* We only get bus and device from IRQ routing table. So at this point, - * func->busno is correct, and func->device contains only device (at the 5 + * func->busno is correct, and func->device contains only device (at the 5 * highest bits) */ @@ -151,7 +151,7 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno) cur_func->device, cur_func->busno); cleanup_count = 6; goto error; - } + } cur_func->next = NULL; function = 0x8; break; @@ -339,7 +339,7 @@ error: } /* - * This function configures the pci BARs of a single device. + * This function configures the pci BARs of a single device. * Input: pointer to the pci_func * Output: configured PCI, 0, or error */ @@ -371,17 +371,17 @@ static int configure_device (struct pci_func *func) for (count = 0; address[count]; count++) { /* for 6 BARs */ - /* not sure if i need this. per scott, said maybe need smth like this + /* not sure if i need this. per scott, said maybe need * something like this if devices don't adhere 100% to the spec, so don't want to write to the reserved bits - pcibios_read_config_byte(cur_func->busno, cur_func->device, + pcibios_read_config_byte(cur_func->busno, cur_func->device, PCI_BASE_ADDRESS_0 + 4 * count, &tmp); if (tmp & 0x01) // IO - pcibios_write_config_dword(cur_func->busno, cur_func->device, + pcibios_write_config_dword(cur_func->busno, cur_func->device, PCI_BASE_ADDRESS_0 + 4 * count, 0xFFFFFFFD); else // Memory - pcibios_write_config_dword(cur_func->busno, cur_func->device, + pcibios_write_config_dword(cur_func->busno, cur_func->device, PCI_BASE_ADDRESS_0 + 4 * count, 0xFFFFFFFF); */ pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], 0xFFFFFFFF); @@ -421,8 +421,8 @@ static int configure_device (struct pci_func *func) return -EIO; } pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], func->io[count]->start); - - /* _______________This is for debugging purposes only_____________________ */ + + /* _______________This is for debugging purposes only_____________________ */ debug ("b4 writing, the IO address is %x\n", func->io[count]->start); pci_bus_read_config_dword (ibmphp_pci_bus, devfn, address[count], &bar[count]); debug ("after writing.... the start address is %x\n", bar[count]); @@ -484,7 +484,7 @@ static int configure_device (struct pci_func *func) pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], func->pfmem[count]->start); - /*_______________This is for debugging purposes only______________________________*/ + /*_______________This is for debugging purposes only______________________________*/ debug ("b4 writing, start address is %x\n", func->pfmem[count]->start); pci_bus_read_config_dword (ibmphp_pci_bus, devfn, address[count], &bar[count]); debug ("after writing, start address is %x\n", bar[count]); @@ -559,7 +559,7 @@ static int configure_device (struct pci_func *func) /****************************************************************************** * This routine configures a PCI-2-PCI bridge and the functions behind it * Parameters: pci_func - * Returns: + * Returns: ******************************************************************************/ static int configure_bridge (struct pci_func **func_passed, u8 slotno) { @@ -622,7 +622,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) debug ("AFTER FIND_SEC_NUMBER, func->busno IS %x\n", func->busno); pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, sec_number); - + /* __________________For debugging purposes only __________________________________ pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, &sec_number); debug ("sec_number after write/read is %x\n", sec_number); @@ -644,7 +644,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) /* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - !!!!!!!!!!!!!!!NEED TO ADD!!! FAST BACK-TO-BACK ENABLE!!!!!!!!!!!!!!!!!!!! + !!!!!!!!!!!!!!!NEED TO ADD!!! FAST BACK-TO-BACK ENABLE!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/ @@ -670,7 +670,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) debug ("len[count] in IO = %x\n", len[count]); bus_io[count] = kzalloc(sizeof(struct resource_node), GFP_KERNEL); - + if (!bus_io[count]) { err ("out of system memory\n"); retval = -ENOMEM; @@ -735,7 +735,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) ibmphp_add_pfmem_from_mem (bus_pfmem[count]); func->pfmem[count] = bus_pfmem[count]; } else { - err ("cannot allocate requested pfmem for bus %x, device %x, len %x\n", + err ("cannot allocate requested pfmem for bus %x, device %x, len %x\n", func->busno, func->device, len[count]); kfree (mem_tmp); kfree (bus_pfmem[count]); @@ -805,7 +805,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) debug ("amount_needed->mem = %x\n", amount_needed->mem); debug ("amount_needed->pfmem = %x\n", amount_needed->pfmem); - if (amount_needed->not_correct) { + if (amount_needed->not_correct) { debug ("amount_needed is not correct\n"); for (count = 0; address[count]; count++) { /* for 2 BARs */ @@ -830,7 +830,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) } else { debug ("it wants %x IO behind the bridge\n", amount_needed->io); io = kzalloc(sizeof(*io), GFP_KERNEL); - + if (!io) { err ("out of system memory\n"); retval = -ENOMEM; @@ -959,7 +959,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) if (bus->noIORanges) { pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_BASE, 0x00 | bus->rangeIO->start >> 8); - pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_LIMIT, 0x00 | bus->rangeIO->end >> 8); + pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_LIMIT, 0x00 | bus->rangeIO->end >> 8); /* _______________This is for debugging purposes only ____________________ pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_IO_BASE, &temp); @@ -980,7 +980,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) if (bus->noMemRanges) { pci_bus_write_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, 0x0000 | bus->rangeMem->start >> 16); pci_bus_write_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_LIMIT, 0x0000 | bus->rangeMem->end >> 16); - + /* ____________________This is for debugging purposes only ________________________ pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, &temp); debug ("mem_base = %x\n", (temp & PCI_MEMORY_RANGE_TYPE_MASK) << 16); @@ -1017,7 +1017,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno) pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_INTERRUPT_PIN, &irq); if ((irq > 0x00) && (irq < 0x05)) pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_INTERRUPT_LINE, func->irq[irq - 1]); - /* + /* pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, ctrl); pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, PCI_BRIDGE_CTL_PARITY); pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, PCI_BRIDGE_CTL_SERR); @@ -1071,7 +1071,7 @@ error: * This function adds up the amount of resources needed behind the PPB bridge * and passes it to the configure_bridge function * Input: bridge function - * Ouput: amount of resources needed + * Output: amount of resources needed *****************************************************************************/ static struct res_needed *scan_behind_bridge (struct pci_func * func, u8 busno) { @@ -1204,9 +1204,9 @@ static struct res_needed *scan_behind_bridge (struct pci_func * func, u8 busno) return amount; } -/* The following 3 unconfigure_boot_ routines deal with the case when we had the card - * upon bootup in the system, since we don't allocate func to such case, we need to read - * the start addresses from pci config space and then find the corresponding entries in +/* The following 3 unconfigure_boot_ routines deal with the case when we had the card + * upon bootup in the system, since we don't allocate func to such case, we need to read + * the start addresses from pci config space and then find the corresponding entries in * our resource lists. The functions return either 0, -ENODEV, or -1 (general failure) * Change: we also call these functions even if we configured the card ourselves (i.e., not * the bootup case), since it should work same way @@ -1561,8 +1561,8 @@ static int unconfigure_boot_card (struct slot *slot_cur) * unconfiguring the device * TO DO: will probably need to add some code in case there was some resource, * to remove it... this is from when we have errors in the configure_card... - * !!!!!!!!!!!!!!!!!!!!!!!!!FOR BUSES!!!!!!!!!!!! - * Returns: 0, -1, -ENODEV + * !!!!!!!!!!!!!!!!!!!!!!!!!FOR BUSES!!!!!!!!!!!! + * Returns: 0, -1, -ENODEV */ int ibmphp_unconfigure_card (struct slot **slot_cur, int the_end) { @@ -1634,7 +1634,7 @@ int ibmphp_unconfigure_card (struct slot **slot_cur, int the_end) * Input: bus and the amount of resources needed (we know we can assign those, * since they've been checked already * Output: bus added to the correct spot - * 0, -1, error + * 0, -1, error */ static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct resource_node *mem, struct resource_node *pfmem, u8 parent_busno) { @@ -1650,7 +1650,7 @@ static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct r err ("strange, cannot find bus which is supposed to be at the system... something is terribly wrong...\n"); return -ENODEV; } - + list_add (&bus->bus_list, &cur_bus->bus_list); } if (io) { @@ -1679,7 +1679,7 @@ static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct r } if (pfmem) { pfmem_range = kzalloc(sizeof(*pfmem_range), GFP_KERNEL); - if (!pfmem_range) { + if (!pfmem_range) { err ("out of system memory\n"); return -ENOMEM; } @@ -1726,4 +1726,3 @@ static u8 find_sec_number (u8 primary_busno, u8 slotno) return busno; return 0xff; } - diff --git a/drivers/pci/hotplug/ibmphp_res.c b/drivers/pci/hotplug/ibmphp_res.c index e2dc289f767c..a265acb2d518 100644 --- a/drivers/pci/hotplug/ibmphp_res.c +++ b/drivers/pci/hotplug/ibmphp_res.c @@ -72,7 +72,7 @@ static struct bus_node * __init alloc_error_bus (struct ebda_pci_rsrc * curr, u8 static struct resource_node * __init alloc_resources (struct ebda_pci_rsrc * curr) { struct resource_node *rs; - + if (!curr) { err ("NULL passed to allocate\n"); return NULL; @@ -128,7 +128,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node } newrange->start = curr->start_addr; newrange->end = curr->end_addr; - + if (first_bus || (!num_ranges)) newrange->rangeno = 1; else { @@ -162,7 +162,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node newbus->rangePFMem = newrange; if (first_bus) newbus->noPFMemRanges = 1; - else { + else { debug ("1st PFMemory Primary on Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end); ++newbus->noPFMemRanges; fix_resources (newbus); @@ -190,7 +190,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node * This is the Resource Management initialization function. It will go through * the Resource list taken from EBDA and fill in this module's data structures * - * THIS IS NOT TAKING INTO CONSIDERATION IO RESTRICTIONS OF PRIMARY BUSES, + * THIS IS NOT TAKING INTO CONSIDERATION IO RESTRICTIONS OF PRIMARY BUSES, * SINCE WE'RE GOING TO ASSUME FOR NOW WE DON'T HAVE THOSE ON OUR BUSES FOR NOW * * Input: ptr to the head of the resource list from EBDA @@ -382,7 +382,7 @@ int __init ibmphp_rsrc_init (void) * pci devices' resources for the appropriate resource * * Input: type of the resource, range to add, current bus - * Output: 0 or -1, bus and range ptrs + * Output: 0 or -1, bus and range ptrs ********************************************************************************/ static int add_bus_range (int type, struct range_node *range, struct bus_node *bus_cur) { @@ -466,7 +466,7 @@ static void update_resources (struct bus_node *bus_cur, int type, int rangeno) switch (type) { case MEM: - if (bus_cur->firstMem) + if (bus_cur->firstMem) res = bus_cur->firstMem; break; case PFMEM: @@ -583,7 +583,7 @@ static void fix_resources (struct bus_node *bus_cur) } /******************************************************************************* - * This routine adds a resource to the list of resources to the appropriate bus + * This routine adds a resource to the list of resources to the appropriate bus * based on their resource type and sorted by their starting addresses. It assigns * the ptrs to next and nextRange if needed. * @@ -605,11 +605,11 @@ int ibmphp_add_resource (struct resource_node *res) err ("NULL passed to add\n"); return -ENODEV; } - + bus_cur = find_bus_wprev (res->busno, NULL, 0); - + if (!bus_cur) { - /* didn't find a bus, smth's wrong!!! */ + /* didn't find a bus, something's wrong!!! */ debug ("no bus in the system, either pci_dev's wrong or allocation failed\n"); return -ENODEV; } @@ -648,7 +648,7 @@ int ibmphp_add_resource (struct resource_node *res) if (!range_cur) { switch (res->type) { case IO: - ++bus_cur->needIOUpdate; + ++bus_cur->needIOUpdate; break; case MEM: ++bus_cur->needMemUpdate; @@ -659,13 +659,13 @@ int ibmphp_add_resource (struct resource_node *res) } res->rangeno = -1; } - + debug ("The range is %d\n", res->rangeno); if (!res_start) { /* no first{IO,Mem,Pfmem} on the bus, 1st IO/Mem/Pfmem resource ever */ switch (res->type) { case IO: - bus_cur->firstIO = res; + bus_cur->firstIO = res; break; case MEM: bus_cur->firstMem = res; @@ -673,7 +673,7 @@ int ibmphp_add_resource (struct resource_node *res) case PFMEM: bus_cur->firstPFMem = res; break; - } + } res->next = NULL; res->nextRange = NULL; } else { @@ -770,7 +770,7 @@ int ibmphp_add_resource (struct resource_node *res) * This routine will remove the resource from the list of resources * * Input: io, mem, and/or pfmem resource to be deleted - * Ouput: modified resource list + * Output: modified resource list * 0 or error code ****************************************************************************/ int ibmphp_remove_resource (struct resource_node *res) @@ -825,7 +825,7 @@ int ibmphp_remove_resource (struct resource_node *res) if (!res_cur) { if (res->type == PFMEM) { - /* + /* * case where pfmem might be in the PFMemFromMem list * so will also need to remove the corresponding mem * entry @@ -961,12 +961,12 @@ static struct range_node * find_range (struct bus_node *bus_cur, struct resource } /***************************************************************************** - * This routine will check to make sure the io/mem/pfmem->len that the device asked for + * This routine will check to make sure the io/mem/pfmem->len that the device asked for * can fit w/i our list of available IO/MEM/PFMEM resources. If cannot, returns -EINVAL, * otherwise, returns 0 * * Input: resource - * Ouput: the correct start and end address are inputted into the resource node, + * Output: the correct start and end address are inputted into the resource node, * 0 or -EINVAL *****************************************************************************/ int ibmphp_check_resource (struct resource_node *res, u8 bridge) @@ -996,7 +996,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge) bus_cur = find_bus_wprev (res->busno, NULL, 0); if (!bus_cur) { - /* didn't find a bus, smth's wrong!!! */ + /* didn't find a bus, something's wrong!!! */ debug ("no bus in the system, either pci_dev's wrong or allocation failed\n"); return -EINVAL; } @@ -1066,7 +1066,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge) break; } } - + if (flag && len_cur == res->len) { debug ("but we are not here, right?\n"); res->start = start_cur; @@ -1118,10 +1118,10 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge) if (res_prev) { if (res_prev->rangeno != res_cur->rangeno) { /* 1st device on this range */ - if ((res_cur->start != range->start) && + if ((res_cur->start != range->start) && ((len_tmp = res_cur->start - 1 - range->start) >= res->len)) { if ((len_tmp < len_cur) || (len_cur == 0)) { - if ((range->start % tmp_divide) == 0) { + if ((range->start % tmp_divide) == 0) { /* just perfect, starting address is divisible by length */ flag = 1; len_cur = len_tmp; @@ -1344,7 +1344,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge) * This routine is called from remove_card if the card contained PPB. * It will remove all the resources on the bus as well as the bus itself * Input: Bus - * Ouput: 0, -ENODEV + * Output: 0, -ENODEV ********************************************************************************/ int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno) { @@ -1353,7 +1353,7 @@ int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno) struct bus_node *prev_bus; int rc; - prev_bus = find_bus_wprev (parent_busno, NULL, 0); + prev_bus = find_bus_wprev (parent_busno, NULL, 0); if (!prev_bus) { debug ("something terribly wrong. Cannot find parent bus to the one to remove\n"); @@ -1424,7 +1424,7 @@ int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno) } /****************************************************************************** - * This routine deletes the ranges from a given bus, and the entries from the + * This routine deletes the ranges from a given bus, and the entries from the * parent's bus in the resources * Input: current bus, previous bus * Output: 0, -EINVAL @@ -1453,7 +1453,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev) if (bus_cur->noMemRanges) { range_cur = bus_cur->rangeMem; for (i = 0; i < bus_cur->noMemRanges; i++) { - if (ibmphp_find_resource (bus_prev, range_cur->start, &res, MEM) < 0) + if (ibmphp_find_resource (bus_prev, range_cur->start, &res, MEM) < 0) return -EINVAL; ibmphp_remove_resource (res); @@ -1467,7 +1467,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev) if (bus_cur->noPFMemRanges) { range_cur = bus_cur->rangePFMem; for (i = 0; i < bus_cur->noPFMemRanges; i++) { - if (ibmphp_find_resource (bus_prev, range_cur->start, &res, PFMEM) < 0) + if (ibmphp_find_resource (bus_prev, range_cur->start, &res, PFMEM) < 0) return -EINVAL; ibmphp_remove_resource (res); @@ -1482,7 +1482,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev) } /* - * find the resource node in the bus + * find the resource node in the bus * Input: Resource needed, start address of the resource, type of resource */ int ibmphp_find_resource (struct bus_node *bus, u32 start_address, struct resource_node **res, int flag) @@ -1512,7 +1512,7 @@ int ibmphp_find_resource (struct bus_node *bus, u32 start_address, struct resour err ("wrong type of flag\n"); return -EINVAL; } - + while (res_cur) { if (res_cur->start == start_address) { *res = res_cur; @@ -1718,7 +1718,7 @@ static int __init once_over (void) } /* end for pfmem */ } /* end if */ } /* end list_for_each bus */ - return 0; + return 0; } int ibmphp_add_pfmem_from_mem (struct resource_node *pfmem) @@ -1760,9 +1760,9 @@ static struct bus_node *find_bus_wprev (u8 bus_number, struct bus_node **prev, u list_for_each (tmp, &gbuses) { tmp_prev = tmp->prev; bus_cur = list_entry (tmp, struct bus_node, bus_list); - if (flag) + if (flag) *prev = list_entry (tmp_prev, struct bus_node, bus_list); - if (bus_cur->busno == bus_number) + if (bus_cur->busno == bus_number) return bus_cur; } @@ -1776,7 +1776,7 @@ void ibmphp_print_test (void) struct range_node *range; struct resource_node *res; struct list_head *tmp; - + debug_pci ("*****************START**********************\n"); if ((!list_empty(&gbuses)) && flags) { @@ -1906,7 +1906,7 @@ static int range_exists_already (struct range_node * range, struct bus_node * bu return 1; range_cur = range_cur->next; } - + return 0; } @@ -1920,7 +1920,7 @@ static int range_exists_already (struct range_node * range, struct bus_node * bu * Returns: none * Note: this function doesn't take into account IO restrictions etc, * so will only work for bridges with no video/ISA devices behind them It - * also will not work for onboard PPB's that can have more than 1 *bus + * also will not work for onboard PPBs that can have more than 1 *bus * behind them All these are TO DO. * Also need to add more error checkings... (from fnc returns etc) */ @@ -1963,7 +1963,7 @@ static int __init update_bridge_ranges (struct bus_node **bus) case PCI_HEADER_TYPE_BRIDGE: function = 0x8; case PCI_HEADER_TYPE_MULTIBRIDGE: - /* We assume here that only 1 bus behind the bridge + /* We assume here that only 1 bus behind the bridge TO DO: add functionality for several: temp = secondary; while (temp < subordinate) { @@ -1972,7 +1972,7 @@ static int __init update_bridge_ranges (struct bus_node **bus) } */ pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, &sec_busno); - bus_sec = find_bus_wprev (sec_busno, NULL, 0); + bus_sec = find_bus_wprev (sec_busno, NULL, 0); /* this bus structure doesn't exist yet, PPB was configured during previous loading of ibmphp */ if (!bus_sec) { bus_sec = alloc_error_bus (NULL, sec_busno, 1); @@ -2028,7 +2028,7 @@ static int __init update_bridge_ranges (struct bus_node **bus) io->len = io->end - io->start + 1; ibmphp_add_resource (io); } - } + } pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, &start_mem_address); pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_LIMIT, &end_mem_address); diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index ec20f74c8981..cfa92a984e62 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c @@ -131,7 +131,7 @@ static ssize_t power_write_file(struct pci_slot *pci_slot, const char *buf, } module_put(slot->ops->owner); -exit: +exit: if (retval) return retval; return count; @@ -177,7 +177,7 @@ static ssize_t attention_write_file(struct pci_slot *slot, const char *buf, retval = ops->set_attention_status(slot->hotplug, attention); module_put(ops->owner); -exit: +exit: if (retval) return retval; return count; @@ -247,7 +247,7 @@ static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf, retval = slot->ops->hardware_test(slot, test); module_put(slot->ops->owner); -exit: +exit: if (retval) return retval; return count; @@ -512,7 +512,7 @@ int pci_hp_deregister(struct hotplug_slot *hotplug) * @hotplug: pointer to the slot whose info has changed * @info: pointer to the info copy into the slot's info structure * - * @slot must have been registered with the pci + * @slot must have been registered with the pci * hotplug subsystem previously with a call to pci_hp_register(). * * Returns 0 if successful, anything else for an error. diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 541bbe6d5343..21e865ded1dc 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -180,5 +180,5 @@ static inline int pciehp_acpi_slot_detection_check(struct pci_dev *dev) { return 0; } -#endif /* CONFIG_ACPI */ +#endif /* CONFIG_ACPI */ #endif /* _PCIEHP_H */ diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c index ead7c534095e..eddddd447d0d 100644 --- a/drivers/pci/hotplug/pciehp_acpi.c +++ b/drivers/pci/hotplug/pciehp_acpi.c @@ -54,7 +54,7 @@ int pciehp_acpi_slot_detection_check(struct pci_dev *dev) { if (slot_detection_mode != PCIEHP_DETECT_ACPI) return 0; - if (acpi_pci_detect_ejectable(DEVICE_ACPI_HANDLE(&dev->dev))) + if (acpi_pci_detect_ejectable(ACPI_HANDLE(&dev->dev))) return 0; return -ENODEV; } @@ -78,7 +78,7 @@ static int __initdata dup_slot_id; static int __initdata acpi_slot_detected; static struct list_head __initdata dummy_slots = LIST_HEAD_INIT(dummy_slots); -/* Dummy driver for dumplicate name detection */ +/* Dummy driver for duplicate name detection */ static int __init dummy_probe(struct pcie_device *dev) { u32 slot_cap; @@ -96,7 +96,7 @@ static int __init dummy_probe(struct pcie_device *dev) dup_slot_id++; } list_add_tail(&slot->list, &dummy_slots); - handle = DEVICE_ACPI_HANDLE(&pdev->dev); + handle = ACPI_HANDLE(&pdev->dev); if (!acpi_slot_detected && acpi_pci_detect_ejectable(handle)) acpi_slot_detected = 1; return -ENODEV; /* dummy driver always returns error */ diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index f4a18f51a29c..bbd48bbe4e9b 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -351,8 +351,8 @@ static int __init pcied_init(void) pciehp_firmware_init(); retval = pcie_port_service_register(&hpdriver_portdrv); - dbg("pcie_port_service_register = %d\n", retval); - info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); + dbg("pcie_port_service_register = %d\n", retval); + info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); if (retval) dbg("Failure to register service\n"); diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 51f56ef4ab6f..3eea3fdd4b0b 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -92,7 +92,7 @@ static void start_int_poll_timer(struct controller *ctrl, int sec) { /* Clamp to sane value */ if ((sec <= 0) || (sec > 60)) - sec = 2; + sec = 2; ctrl->poll_timer.function = &int_poll_timeout; ctrl->poll_timer.data = (unsigned long)ctrl; @@ -194,7 +194,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask) ctrl_dbg(ctrl, "CMD_COMPLETED not clear after 1 sec\n"); } else if (!NO_CMD_CMPL(ctrl)) { /* - * This controller semms to notify of command completed + * This controller seems to notify of command completed * event even though it supports none of power * controller, attention led, power led and EMI. */ @@ -926,7 +926,7 @@ struct controller *pcie_init(struct pcie_device *dev) if (pciehp_writew(ctrl, PCI_EXP_SLTSTA, 0x1f)) goto abort_ctrl; - /* Disable sotfware notification */ + /* Disable software notification */ pcie_disable_notification(ctrl); ctrl_info(ctrl, "HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", diff --git a/drivers/pci/hotplug/pcihp_skeleton.c b/drivers/pci/hotplug/pcihp_skeleton.c index 1f00b937f721..ac69094e4b20 100644 --- a/drivers/pci/hotplug/pcihp_skeleton.c +++ b/drivers/pci/hotplug/pcihp_skeleton.c @@ -52,7 +52,7 @@ static LIST_HEAD(slot_list); do { \ if (debug) \ printk (KERN_DEBUG "%s: " format "\n", \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) @@ -287,7 +287,7 @@ static int __init init_slots(void) hotplug_slot->release = &release_slot; make_slot_name(slot); hotplug_slot->ops = &skel_hotplug_slot_ops; - + /* * Initialize the slot info structure with some known * good values. @@ -296,7 +296,7 @@ static int __init init_slots(void) get_attention_status(hotplug_slot, &info->attention_status); get_latch_status(hotplug_slot, &info->latch_status); get_adapter_status(hotplug_slot, &info->adapter_status); - + dbg("registering slot %d\n", i); retval = pci_hp_register(slot->hotplug_slot); if (retval) { @@ -336,7 +336,7 @@ static void __exit cleanup_slots(void) pci_hp_deregister(slot->hotplug_slot); } } - + static int __init pcihp_skel_init(void) { int retval; diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index bb7af78e4eed..e9c044d15add 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -217,7 +217,7 @@ static int dlpar_remove_phb(char *drc_name, struct device_node *dn) if (!pcibios_find_pci_bus(dn)) return -EINVAL; - /* If pci slot is hotplugable, use hotplug to remove it */ + /* If pci slot is hotpluggable, use hotplug to remove it */ slot = find_php_slot(dn); if (slot && rpaphp_deregister_slot(slot)) { printk(KERN_ERR "%s: unable to remove hotplug slot %s\n", diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h index 3135856e5e1c..b2593e876a09 100644 --- a/drivers/pci/hotplug/rpaphp.h +++ b/drivers/pci/hotplug/rpaphp.h @@ -49,9 +49,9 @@ extern bool rpaphp_debug; #define dbg(format, arg...) \ do { \ - if (rpaphp_debug) \ + if (rpaphp_debug) \ printk(KERN_DEBUG "%s: " format, \ - MY_NAME , ## arg); \ + MY_NAME , ## arg); \ } while (0) #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) @@ -99,5 +99,5 @@ void dealloc_slot_struct(struct slot *slot); struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain); int rpaphp_register_slot(struct slot *slot); int rpaphp_deregister_slot(struct slot *slot); - + #endif /* _PPC64PHP_H */ diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c index 127d6e600185..b7fc5c9255a5 100644 --- a/drivers/pci/hotplug/rpaphp_core.c +++ b/drivers/pci/hotplug/rpaphp_core.c @@ -226,7 +226,7 @@ int rpaphp_get_drc_props(struct device_node *dn, int *drc_index, for (i = 0; i < indexes[0]; i++) { if ((unsigned int) indexes[i + 1] == *my_index) { if (drc_name) - *drc_name = name_tmp; + *drc_name = name_tmp; if (drc_type) *drc_type = type_tmp; if (drc_index) @@ -289,7 +289,7 @@ static int is_php_dn(struct device_node *dn, const int **indexes, * rpaphp_add_slot -- declare a hotplug slot to the hotplug subsystem. * @dn: device node of slot * - * This subroutine will register a hotplugable slot with the + * This subroutine will register a hotpluggable slot with the * PCI hotplug infrastructure. This routine is typically called * during boot time, if the hotplug slots are present at boot time, * or is called later, by the dlpar add code, if the slot is @@ -328,7 +328,7 @@ int rpaphp_add_slot(struct device_node *dn) return -ENOMEM; slot->type = simple_strtoul(type, NULL, 10); - + dbg("Found drc-index:0x%x drc-name:%s drc-type:%s\n", indexes[i + 1], name, type); @@ -356,7 +356,7 @@ static void __exit cleanup_slots(void) /* * Unregister all of our slots with the pci_hotplug subsystem, * and free up all memory that we had allocated. - * memory will be freed in release_slot callback. + * memory will be freed in release_slot callback. */ list_for_each_safe(tmp, n, &rpaphp_slot_head) { diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c index 513e1e282391..9243f3e7a1c9 100644 --- a/drivers/pci/hotplug/rpaphp_pci.c +++ b/drivers/pci/hotplug/rpaphp_pci.c @@ -44,7 +44,7 @@ int rpaphp_get_sensor_state(struct slot *slot, int *state) dbg("%s: slot must be power up to get sensor-state\n", __func__); - /* some slots have to be powered up + /* some slots have to be powered up * before get-sensor will succeed. */ rc = rtas_set_power_level(slot->power_domain, POWER_ON, @@ -133,4 +133,3 @@ int rpaphp_enable_slot(struct slot *slot) return 0; } - diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c index b283bbea6d24..a6082cc263f7 100644 --- a/drivers/pci/hotplug/rpaphp_slot.c +++ b/drivers/pci/hotplug/rpaphp_slot.c @@ -1,5 +1,5 @@ /* - * RPA Virtual I/O device functions + * RPA Virtual I/O device functions * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com> * * All rights reserved. @@ -51,27 +51,27 @@ struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain) { struct slot *slot; - + slot = kzalloc(sizeof(struct slot), GFP_KERNEL); if (!slot) goto error_nomem; slot->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL); if (!slot->hotplug_slot) - goto error_slot; + goto error_slot; slot->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); if (!slot->hotplug_slot->info) goto error_hpslot; slot->name = kstrdup(drc_name, GFP_KERNEL); if (!slot->name) - goto error_info; + goto error_info; slot->dn = dn; slot->index = drc_index; slot->power_domain = power_domain; slot->hotplug_slot->private = slot; slot->hotplug_slot->ops = &rpaphp_hotplug_slot_ops; slot->hotplug_slot->release = &rpaphp_release_slot; - + return (slot); error_info: @@ -91,7 +91,7 @@ static int is_registered(struct slot *slot) list_for_each_entry(tmp_slot, &rpaphp_slot_head, rpaphp_slot_list) { if (!strcmp(tmp_slot->name, slot->name)) return 1; - } + } return 0; } @@ -104,7 +104,7 @@ int rpaphp_deregister_slot(struct slot *slot) __func__, slot->name); list_del(&slot->rpaphp_slot_list); - + retval = pci_hp_deregister(php_slot); if (retval) err("Problem unregistering a slot %s\n", slot->name); @@ -120,7 +120,7 @@ int rpaphp_register_slot(struct slot *slot) int retval; int slotno; - dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", + dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", __func__, slot->dn->full_name, slot->index, slot->name, slot->power_domain, slot->type); @@ -128,7 +128,7 @@ int rpaphp_register_slot(struct slot *slot) if (is_registered(slot)) { err("rpaphp_register_slot: slot[%s] is already registered\n", slot->name); return -EAGAIN; - } + } if (slot->dn->child) slotno = PCI_SLOT(PCI_DN(slot->dn->child)->devfn); @@ -145,4 +145,3 @@ int rpaphp_register_slot(struct slot *slot) info("Slot [%s] registered\n", slot->name); return 0; } - diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index b2781dfe60e9..5b05a68cca6c 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -9,6 +9,7 @@ * Work to add BIOS PROM support was completed by Mike Habeck. */ +#include <linux/acpi.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> @@ -29,7 +30,6 @@ #include <asm/sn/sn_feature_sets.h> #include <asm/sn/sn_sal.h> #include <asm/sn/types.h> -#include <linux/acpi.h> #include <asm/sn/acpi.h> #include "../pci.h" @@ -414,7 +414,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) acpi_handle rethandle; acpi_status ret; - phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle; + phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion); if (acpi_bus_get_device(phandle, &pdevice)) { dev_dbg(&slot->pci_bus->self->dev, @@ -495,7 +495,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) /* free the ACPI resources for the slot */ if (SN_ACPI_BASE_SUPPORT() && - PCI_CONTROLLER(slot->pci_bus)->acpi_handle) { + PCI_CONTROLLER(slot->pci_bus)->companion) { unsigned long long adr; struct acpi_device *device; acpi_handle phandle; @@ -504,7 +504,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) acpi_status ret; /* Get the rootbus node pointer */ - phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle; + phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion); acpi_scan_lock_acquire(); /* diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index d876e4b3c6a9..61529097464d 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -216,13 +216,13 @@ struct ctrl_reg { /* offsets to the controller registers based on the above structure layout */ enum ctrl_offsets { - BASE_OFFSET = offsetof(struct ctrl_reg, base_offset), - SLOT_AVAIL1 = offsetof(struct ctrl_reg, slot_avail1), + BASE_OFFSET = offsetof(struct ctrl_reg, base_offset), + SLOT_AVAIL1 = offsetof(struct ctrl_reg, slot_avail1), SLOT_AVAIL2 = offsetof(struct ctrl_reg, slot_avail2), - SLOT_CONFIG = offsetof(struct ctrl_reg, slot_config), + SLOT_CONFIG = offsetof(struct ctrl_reg, slot_config), SEC_BUS_CONFIG = offsetof(struct ctrl_reg, sec_bus_config), MSI_CTRL = offsetof(struct ctrl_reg, msi_ctrl), - PROG_INTERFACE = offsetof(struct ctrl_reg, prog_interface), + PROG_INTERFACE = offsetof(struct ctrl_reg, prog_interface), CMD = offsetof(struct ctrl_reg, cmd), CMD_STATUS = offsetof(struct ctrl_reg, cmd_status), INTR_LOC = offsetof(struct ctrl_reg, intr_loc), diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index d3f757df691c..faf13abd5b99 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -143,11 +143,11 @@ static int init_slots(struct controller *ctrl) snprintf(name, SLOT_NAME_SIZE, "%d", slot->number); hotplug_slot->ops = &shpchp_hotplug_slot_ops; - ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x " - "hp_slot=%x sun=%x slot_device_offset=%x\n", - pci_domain_nr(ctrl->pci_dev->subordinate), - slot->bus, slot->device, slot->hp_slot, slot->number, - ctrl->slot_device_offset); + ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x " + "hp_slot=%x sun=%x slot_device_offset=%x\n", + pci_domain_nr(ctrl->pci_dev->subordinate), + slot->bus, slot->device, slot->hp_slot, slot->number, + ctrl->slot_device_offset); retval = pci_hp_register(slot->hotplug_slot, ctrl->pci_dev->subordinate, slot->device, name); if (retval) { diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 75ba2311b54f..2d7f474ca0ec 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -116,7 +116,7 @@ #define SLOT_REG_RSVDZ_MASK ((1 << 15) | (7 << 21)) /* - * SHPC Command Code definitnions + * SHPC Command Code definitions * * Slot Operation 00h - 3Fh * Set Bus Segment Speed/Mode A 40h - 47h diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c index 1b90579b233a..50ce68098298 100644 --- a/drivers/pci/ioapic.c +++ b/drivers/pci/ioapic.c @@ -37,7 +37,7 @@ static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent) char *type; struct resource *res; - handle = DEVICE_ACPI_HANDLE(&dev->dev); + handle = ACPI_HANDLE(&dev->dev); if (!handle) return -EINVAL; diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 21a7182dccd4..1fe2d6fb19d5 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -610,7 +610,7 @@ resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno) struct resource tmp; enum pci_bar_type type; int reg = pci_iov_resource_bar(dev, resno, &type); - + if (!reg) return 0; diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c index b008cf86b9c3..6684f153ab57 100644 --- a/drivers/pci/irq.c +++ b/drivers/pci/irq.c @@ -25,7 +25,7 @@ static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason) /** * pci_lost_interrupt - reports a lost PCI interrupt * @pdev: device whose interrupt is lost - * + * * The primary function of this routine is to report a lost interrupt * in a standard way which users can recognise (instead of blaming the * driver). diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 5e63645a7abe..3fcd67a16677 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -784,7 +784,7 @@ error: * @nvec: how many MSIs have been requested ? * @type: are we checking for MSI or MSI-X ? * - * Look at global flags, the device itself, and its parent busses + * Look at global flags, the device itself, and its parent buses * to determine if MSI/-X are supported for the device. If MSI/-X is * supported return 0, else return an error code. **/ diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index dfd1f59de729..577074efbe62 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -141,7 +141,7 @@ phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle) * if (_PRW at S-state x) * choose from highest power _SxD to lowest power _SxW * else // no _PRW at S-state x - * choose highest power _SxD or any lower power + * choose highest power _SxD or any lower power */ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) @@ -173,14 +173,14 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev) static bool acpi_pci_power_manageable(struct pci_dev *dev) { - acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle handle = ACPI_HANDLE(&dev->dev); return handle ? acpi_bus_power_manageable(handle) : false; } static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { - acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle handle = ACPI_HANDLE(&dev->dev); static const u8 state_conv[] = { [PCI_D0] = ACPI_STATE_D0, [PCI_D1] = ACPI_STATE_D1, @@ -217,7 +217,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) static bool acpi_pci_can_wakeup(struct pci_dev *dev) { - acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle handle = ACPI_HANDLE(&dev->dev); return handle ? acpi_bus_can_wakeup(handle) : false; } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 454853507b7e..9042fdbd7244 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -312,7 +312,7 @@ static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, * __pci_device_probe - check if a driver wants to claim a specific PCI device * @drv: driver to call to check if it wants the PCI device * @pci_dev: PCI device being probed - * + * * returns 0 on success, else error. * side-effect: pci_dev->driver is set to drv when drv claims pci_dev. */ @@ -378,7 +378,7 @@ static int pci_device_remove(struct device * dev) * We would love to complain here if pci_dev->is_enabled is set, that * the driver should have called pci_disable_device(), but the * unfortunate fact is there are too many odd BIOS and bridge setups - * that don't like drivers doing that all of the time. + * that don't like drivers doing that all of the time. * Oh well, we can dream of sane hardware when we sleep, no matter how * horrible the crap we have to deal with is when we are awake... */ @@ -1156,10 +1156,10 @@ static const struct dev_pm_ops pci_dev_pm_ops = { * @drv: the driver structure to register * @owner: owner module of drv * @mod_name: module name string - * + * * Adds the driver structure to the list of registered drivers. - * Returns a negative value on error, otherwise 0. - * If no error occurred, the driver remains registered even if + * Returns a negative value on error, otherwise 0. + * If no error occurred, the driver remains registered even if * no device was claimed during registration. */ int __pci_register_driver(struct pci_driver *drv, struct module *owner, @@ -1181,7 +1181,7 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner, /** * pci_unregister_driver - unregister a pci driver * @drv: the driver structure to unregister - * + * * Deletes the driver structure from the list of registered PCI drivers, * gives it a chance to clean up by calling its remove() function for * each device it was responsible for, and marks those devices as @@ -1203,7 +1203,7 @@ static struct pci_driver pci_compat_driver = { * pci_dev_driver - get the pci_driver of a device * @dev: the device to query * - * Returns the appropriate pci_driver structure or %NULL if there is no + * Returns the appropriate pci_driver structure or %NULL if there is no * registered driver for the device. */ struct pci_driver * @@ -1224,7 +1224,7 @@ pci_dev_driver(const struct pci_dev *dev) * pci_bus_match - Tell if a PCI device structure has a matching PCI device id structure * @dev: the PCI device structure to match against * @drv: the device driver to search for matching PCI device id structures - * + * * Used by a driver to check whether a PCI device present in the * system is in its list of supported devices. Returns the matching * pci_device_id structure or %NULL if there is no match. diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index edaed6f4da6c..d51f45aa669e 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -263,7 +263,7 @@ device_has_dsm(struct device *dev) acpi_handle handle; struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; - handle = DEVICE_ACPI_HANDLE(dev); + handle = ACPI_HANDLE(dev); if (!handle) return FALSE; @@ -295,7 +295,7 @@ acpilabel_show(struct device *dev, struct device_attribute *attr, char *buf) acpi_handle handle; int length; - handle = DEVICE_ACPI_HANDLE(dev); + handle = ACPI_HANDLE(dev); if (!handle) return -1; @@ -316,7 +316,7 @@ acpiindex_show(struct device *dev, struct device_attribute *attr, char *buf) acpi_handle handle; int length; - handle = DEVICE_ACPI_HANDLE(dev); + handle = ACPI_HANDLE(dev); if (!handle) return -1; diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c index 6e47c519c510..2ff77509d8e5 100644 --- a/drivers/pci/pci-stub.c +++ b/drivers/pci/pci-stub.c @@ -2,13 +2,13 @@ * * Copyright (C) 2008 Red Hat, Inc. * Author: - * Chris Wright + * Chris Wright * * This work is licensed under the terms of the GNU GPL, version 2. * * Usage is simple, allocate a new id to the stub driver and bind the * device to it. For example: - * + * * # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/new_id * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/e1000e/unbind * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/pci-stub/bind diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 2aaa83c85a4e..c91e6c18debc 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -10,7 +10,7 @@ * * File attributes for PCI devices * - * Modeled after usb's driverfs.c + * Modeled after usb's driverfs.c * */ @@ -270,13 +270,17 @@ msi_bus_store(struct device *dev, struct device_attribute *attr, if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; - /* bad things may happen if the no_msi flag is changed - * while some drivers are loaded */ + /* + * Bad things may happen if the no_msi flag is changed + * while drivers are loaded. + */ if (!capable(CAP_SYS_ADMIN)) return -EPERM; - /* Maybe pci devices without subordinate busses shouldn't even have this - * attribute in the first place? */ + /* + * Maybe devices without subordinate buses shouldn't have this + * attribute in the first place? + */ if (!pdev->subordinate) return count; @@ -670,7 +674,7 @@ pci_write_config(struct file* filp, struct kobject *kobj, size = dev->cfg_size - off; count = size; } - + pci_config_pm_runtime_get(dev); if ((off & 1) && size) { @@ -678,7 +682,7 @@ pci_write_config(struct file* filp, struct kobject *kobj, off++; size--; } - + if ((off & 3) && size > 2) { u16 val = data[off - init_off]; val |= (u16) data[off - init_off + 1] << 8; @@ -696,7 +700,7 @@ pci_write_config(struct file* filp, struct kobject *kobj, off += 4; size -= 4; } - + if (size >= 2) { u16 val = data[off - init_off]; val |= (u16) data[off - init_off + 1] << 8; @@ -1229,21 +1233,21 @@ pci_read_rom(struct file *filp, struct kobject *kobj, if (!pdev->rom_attr_enabled) return -EINVAL; - + rom = pci_map_rom(pdev, &size); /* size starts out as PCI window size */ if (!rom || !size) return -EIO; - + if (off >= size) count = 0; else { if (off + count > size) count = size - off; - + memcpy_fromio(buf, rom + off, count); } pci_unmap_rom(pdev, rom); - + return count; } diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b127fbda6fc8..33120d156668 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -198,7 +198,7 @@ static int __pci_bus_find_cap_start(struct pci_bus *bus, } /** - * pci_find_capability - query for devices' capabilities + * pci_find_capability - query for devices' capabilities * @dev: PCI device to query * @cap: capability code * @@ -207,12 +207,12 @@ static int __pci_bus_find_cap_start(struct pci_bus *bus, * device's PCI configuration space or 0 in case the device does not * support it. Possible values for @cap: * - * %PCI_CAP_ID_PM Power Management - * %PCI_CAP_ID_AGP Accelerated Graphics Port - * %PCI_CAP_ID_VPD Vital Product Data - * %PCI_CAP_ID_SLOTID Slot Identification + * %PCI_CAP_ID_PM Power Management + * %PCI_CAP_ID_AGP Accelerated Graphics Port + * %PCI_CAP_ID_VPD Vital Product Data + * %PCI_CAP_ID_SLOTID Slot Identification * %PCI_CAP_ID_MSI Message Signalled Interrupts - * %PCI_CAP_ID_CHSWP CompactPCI HotSwap + * %PCI_CAP_ID_CHSWP CompactPCI HotSwap * %PCI_CAP_ID_PCIX PCI-X * %PCI_CAP_ID_EXP PCI Express */ @@ -228,13 +228,13 @@ int pci_find_capability(struct pci_dev *dev, int cap) } /** - * pci_bus_find_capability - query for devices' capabilities + * pci_bus_find_capability - query for devices' capabilities * @bus: the PCI bus to query * @devfn: PCI device to query * @cap: capability code * * Like pci_find_capability() but works for pci devices that do not have a - * pci_dev structure set up yet. + * pci_dev structure set up yet. * * Returns the address of the requested capability structure within the * device's PCI configuration space or 0 in case the device does not @@ -515,7 +515,7 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state) return -EINVAL; /* Validate current state: - * Can enter D0 from any state, but if we can only go deeper + * Can enter D0 from any state, but if we can only go deeper * to sleep if we're already in a low power state */ if (state != PCI_D0 && dev->current_state <= PCI_D3cold @@ -998,7 +998,7 @@ static void pci_restore_config_space(struct pci_dev *pdev) } } -/** +/** * pci_restore_state - Restore the saved state of a PCI device * @dev: - PCI device that we're dealing with */ @@ -1030,7 +1030,7 @@ struct pci_saved_state { * the device saved state. * @dev: PCI device that we're dealing with * - * Rerturn NULL if no state or error. + * Return NULL if no state or error. */ struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev) { @@ -1880,7 +1880,7 @@ int pci_finish_runtime_suspend(struct pci_dev *dev) * pci_dev_run_wake - Check if device can generate run-time wake-up events. * @dev: Device to check. * - * Return true if the device itself is cabable of generating wake-up events + * Return true if the device itself is capable of generating wake-up events * (through the platform or using the native PCIe PME) or if the device supports * PME and one of its upstream bridges can generate wake-up events. */ @@ -2447,7 +2447,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags) switch (pci_pcie_type(pdev)) { /* * PCI/X-to-PCIe bridges are not specifically mentioned by the spec, - * but since their primary inteface is PCI/X, we conservatively + * but since their primary interface is PCI/X, we conservatively * handle them as we would a non-PCIe device. */ case PCI_EXP_TYPE_PCIE_BRIDGE: @@ -2471,7 +2471,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags) /* * PCIe 3.0, 6.12.1.2 specifies ACS capabilities that should be * implemented by the remaining PCIe types to indicate peer-to-peer - * capabilities, but only when they are part of a multifunciton + * capabilities, but only when they are part of a multifunction * device. The footnote for section 6.12 indicates the specific * PCIe types included here. */ @@ -2486,7 +2486,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags) } /* - * PCIe 3.0, 6.12.1.3 specifies no ACS capabilties are applicable + * PCIe 3.0, 6.12.1.3 specifies no ACS capabilities are applicable * to single function devices with the exception of downstream ports. */ return true; @@ -2622,7 +2622,7 @@ void pci_release_region(struct pci_dev *pdev, int bar) * * If @exclusive is set, then the region is marked so that userspace * is explicitly not allowed to map the resource via /dev/mem or - * sysfs MMIO access. + * sysfs MMIO access. * * Returns 0 on success, or %EBUSY on error. A warning * message is also printed on failure. @@ -2634,7 +2634,7 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_n if (pci_resource_len(pdev, bar) == 0) return 0; - + if (pci_resource_flags(pdev, bar) & IORESOURCE_IO) { if (!request_region(pci_resource_start(pdev, bar), pci_resource_len(pdev, bar), res_name)) @@ -2694,7 +2694,7 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name) * * The key difference that _exclusive makes it that userspace is * explicitly not allowed to map the resource via /dev/mem or - * sysfs. + * sysfs. */ int pci_request_region_exclusive(struct pci_dev *pdev, int bar, const char *res_name) { @@ -2799,7 +2799,7 @@ int pci_request_regions(struct pci_dev *pdev, const char *res_name) * successfully. * * pci_request_regions_exclusive() will mark the region so that - * /dev/mem and the sysfs MMIO access will not be allowed. + * /dev/mem and the sysfs MMIO access will not be allowed. * * Returns 0 on success, or %EBUSY on error. A warning * message is also printed on failure. @@ -2967,7 +2967,7 @@ pci_set_mwi(struct pci_dev *dev) cmd |= PCI_COMMAND_INVALIDATE; pci_write_config_word(dev, PCI_COMMAND, cmd); } - + return 0; } @@ -3292,7 +3292,7 @@ clear: * * NOTE: This causes the caller to sleep for twice the device power transition * cooldown period, which for the D0->D3hot and D3hot->D0 transitions is 10 ms - * by devault (i.e. unless the @dev's d3_delay field has a different value). + * by default (i.e. unless the @dev's d3_delay field has a different value). * Moreover, only devices in D0 can be reset by this function. */ static int pci_pm_reset(struct pci_dev *dev, int probe) @@ -3341,7 +3341,7 @@ void pci_reset_bridge_secondary_bus(struct pci_dev *dev) pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl); /* * PCI spec v3.0 7.6.4.2 requires minimum Trst of 1ms. Double - * this to 2ms to ensure that we meet the minium requirement. + * this to 2ms to ensure that we meet the minimum requirement. */ msleep(2); @@ -3998,7 +3998,7 @@ int pcie_set_mps(struct pci_dev *dev, int mps) return -EINVAL; v = ffs(mps) - 8; - if (v > dev->pcie_mpss) + if (v > dev->pcie_mpss) return -EINVAL; v <<= 5; diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 6b3a958e1be6..b2c8881da764 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -525,7 +525,7 @@ static void handle_error_source(struct pcie_device *aerdev, if (info->severity == AER_CORRECTABLE) { /* - * Correctable error does not need software intevention. + * Correctable error does not need software intervention. * No need to go through error recovery process. */ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR); diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 403a44374ed5..f1272dc54de1 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -548,7 +548,7 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev) /* * pcie_aspm_init_link_state: Initiate PCI express link state. - * It is called after the pcie and its children devices are scaned. + * It is called after the pcie and its children devices are scanned. * @pdev: the root port or switch downstream port */ void pcie_aspm_init_link_state(struct pci_dev *pdev) diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index e56e594ce112..bbc3bdd2b189 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -419,8 +419,8 @@ static void pcie_pme_remove(struct pcie_device *srv) static struct pcie_port_service_driver pcie_pme_driver = { .name = "pcie_pme", - .port_type = PCI_EXP_TYPE_ROOT_PORT, - .service = PCIE_PORT_SERVICE_PME, + .port_type = PCI_EXP_TYPE_ROOT_PORT, + .service = PCIE_PORT_SERVICE_PME, .probe = pcie_pme_probe, .suspend = pcie_pme_suspend, diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index d2eb80aab569..d525548404d6 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -14,7 +14,7 @@ #define PCIE_PORT_DEVICE_MAXSERVICES 4 /* * According to the PCI Express Base Specification 2.0, the indices of - * the MSI-X table entires used by port services must not exceed 31 + * the MSI-X table entries used by port services must not exceed 31 */ #define PCIE_PORT_MAX_MSIX_ENTRIES 32 diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c index 67be55a7f260..87e79a6ffb5a 100644 --- a/drivers/pci/pcie/portdrv_bus.c +++ b/drivers/pci/pcie/portdrv_bus.c @@ -18,8 +18,8 @@ static int pcie_port_bus_match(struct device *dev, struct device_driver *drv); struct bus_type pcie_port_bus_type = { - .name = "pci_express", - .match = pcie_port_bus_match, + .name = "pci_express", + .match = pcie_port_bus_match, }; EXPORT_SYMBOL_GPL(pcie_port_bus_type); diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 08d131f7815b..0b6e76604068 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -46,7 +46,7 @@ static void release_pcie_device(struct device *dev) * pcie_port_msix_add_entry - add entry to given array of MSI-X entries * @entries: Array of MSI-X entries * @new_entry: Index of the entry to add to the array - * @nr_entries: Number of entries aleady in the array + * @nr_entries: Number of entries already in the array * * Return value: Position of the added entry in the array */ diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 696caed5fdf5..0d8fdc48e642 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -223,7 +223,6 @@ static int pcie_portdrv_probe(struct pci_dev *dev, static void pcie_portdrv_remove(struct pci_dev *dev) { pcie_port_device_remove(dev); - pci_disable_device(dev); } static int error_detected_iter(struct device *device, void *data) @@ -390,9 +389,9 @@ static struct pci_driver pcie_portdriver = { .probe = pcie_portdrv_probe, .remove = pcie_portdrv_remove, - .err_handler = &pcie_portdrv_err_handler, + .err_handler = &pcie_portdrv_err_handler, - .driver.pm = PCIE_PORTDRV_PM_OPS, + .driver.pm = PCIE_PORTDRV_PM_OPS, }; static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d) @@ -412,7 +411,7 @@ static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = { .ident = "MSI Wind U-100", .matches = { DMI_MATCH(DMI_SYS_VENDOR, - "MICRO-STAR INTERNATIONAL CO., LTD"), + "MICRO-STAR INTERNATIONAL CO., LTD"), DMI_MATCH(DMI_PRODUCT_NAME, "U-100"), }, }, diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 5e14f5a51357..38e403dddf6e 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -582,7 +582,7 @@ static enum pci_bus_speed agp_speed(int agp3, int agpstat) index = 1; else goto out; - + if (agp3) { index += 2; if (index == 5) @@ -789,7 +789,7 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass) } /* Disable MasterAbortMode during probing to avoid reporting - of bus errors (in some architectures) */ + of bus errors (in some architectures) */ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bctl); pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT); @@ -1005,7 +1005,7 @@ void set_pcie_hotplug_bridge(struct pci_dev *pdev) * pci_setup_device - fill in class and map information of a device * @dev: the device structure to fill * - * Initialize the device structure with information about the device's + * Initialize the device structure with information about the device's * vendor,class,memory and IO-space addresses,IRQ lines etc. * Called at initialisation of the PCI subsystem and by CardBus services. * Returns 0 on success and negative if unknown type of device (not normal, @@ -1111,7 +1111,7 @@ int pci_setup_device(struct pci_dev *dev) goto bad; /* The PCI-to-PCI bridge spec requires that subtractive decoding (i.e. transparent) bridge must have programming - interface code of 0x01. */ + interface code of 0x01. */ pci_read_irq(dev); dev->transparent = ((dev->class & 0xff) == 1); pci_read_bases(dev, 2, PCI_ROM_ADDRESS1); @@ -1570,7 +1570,7 @@ static void pcie_write_mrrs(struct pci_dev *dev) * subsequent read will verify if the value is acceptable or not. * If the MRRS value provided is not acceptable (e.g., too large), * shrink the value until it is acceptable to the HW. - */ + */ while (mrrs != pcie_get_readrq(dev) && mrrs >= 128) { rc = pcie_set_readrq(dev, mrrs); if (!rc) diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index cdc7836d7e3d..46d1378f2e9e 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -222,7 +222,7 @@ static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd, default: ret = -EINVAL; break; - }; + } return ret; } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 91490453c229..3a02717473ad 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -9,10 +9,6 @@ * * Init/reset quirks for USB host controllers should be in the * USB quirks file, where their drivers can access reuse it. - * - * The bridge optimization stuff has been removed. If you really - * have a silly BIOS which is unable to set your host bridge right, - * use the PowerTweak utility (see http://powertweak.sourceforge.net). */ #include <linux/types.h> @@ -55,7 +51,7 @@ static void quirk_mellanox_tavor(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor); -/* Deal with broken BIOS'es that neglect to enable passive release, +/* Deal with broken BIOSes that neglect to enable passive release, which can cause problems in combination with the 82441FX/PPro MTRRs */ static void quirk_passive_release(struct pci_dev *dev) { @@ -78,11 +74,11 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_p /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround but VIA don't answer queries. If you happen to have good contacts at VIA - ask them for me please -- Alan - - This appears to be BIOS not version dependent. So presumably there is a + ask them for me please -- Alan + + This appears to be BIOS not version dependent. So presumably there is a chipset level fix */ - + static void quirk_isa_dma_hangs(struct pci_dev *dev) { if (!isa_dma_bridge_buggy) { @@ -97,7 +93,7 @@ static void quirk_isa_dma_hangs(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs); @@ -157,10 +153,10 @@ static void quirk_triton(struct pci_dev *dev) pci_pci_problems |= PCIPCI_TRITON; } } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton); /* * VIA Apollo KT133 needs PCI latency patch @@ -171,7 +167,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quir * the info on which Mr Breese based his work. * * Updated based on further information from the site and also on - * information provided by VIA + * information provided by VIA */ static void quirk_vialatency(struct pci_dev *dev) { @@ -179,7 +175,7 @@ static void quirk_vialatency(struct pci_dev *dev) u8 busarb; /* Ok we have a potential problem chipset here. Now see if we have a buggy southbridge */ - + p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); if (p!=NULL) { /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ @@ -194,9 +190,9 @@ static void quirk_vialatency(struct pci_dev *dev) if (p->revision < 0x10 || p->revision > 0x12) goto exit; } - + /* - * Ok we have the problem. Now set the PCI master grant to + * Ok we have the problem. Now set the PCI master grant to * occur every master grant. The apparent bug is that under high * PCI load (quite common in Linux of course) you can get data * loss when the CPU is held off the bus for 3 bus master requests @@ -209,7 +205,7 @@ static void quirk_vialatency(struct pci_dev *dev) */ pci_read_config_byte(dev, 0x76, &busarb); - /* Set bit 4 and bi 5 of byte 76 to 0x01 + /* Set bit 4 and bi 5 of byte 76 to 0x01 "Master priority rotation on every PCI master grant */ busarb &= ~(1<<5); busarb |= (1<<4); @@ -252,7 +248,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx) * that DMA to AGP space. Latency must be set to 0xA and triton * workaround applied too * [Info kindly provided by ALi] - */ + */ static void quirk_alimagik(struct pci_dev *dev) { if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) { @@ -260,8 +256,8 @@ static void quirk_alimagik(struct pci_dev *dev) pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; } } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik); /* * Natoma has some interesting boundary conditions with Zoran stuff @@ -274,12 +270,12 @@ static void quirk_natoma(struct pci_dev *dev) pci_pci_problems |= PCIPCI_NATOMA; } } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma); /* * This chip can cause PCI parity errors if config register 0xA0 is read @@ -400,7 +396,7 @@ static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int p /* * For now we only print it out. Eventually we'll want to * reserve it (at least if it's in the 0x1000+ range), but - * let's get enough confirmation reports first. + * let's get enough confirmation reports first. */ base &= -size; dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1); @@ -425,7 +421,7 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int } /* * For now we only print it out. Eventually we'll want to - * reserve it, but let's get enough confirmation reports first. + * reserve it, but let's get enough confirmation reports first. */ base &= -size; dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1); @@ -682,7 +678,7 @@ static void quirk_xio2000a(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, quirk_xio2000a); -#ifdef CONFIG_X86_IO_APIC +#ifdef CONFIG_X86_IO_APIC #include <asm/io_apic.h> @@ -696,12 +692,12 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, static void quirk_via_ioapic(struct pci_dev *dev) { u8 tmp; - + if (nr_ioapics < 1) tmp = 0; /* nothing routed to external APIC */ else tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ - + dev_info(&dev->dev, "%sbling VIA external APIC routing\n", tmp == 0 ? "Disa" : "Ena"); @@ -712,7 +708,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_i DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); /* - * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit. + * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit. * This leads to doubled level interrupt rates. * Set this bit to get rid of cycle wastage. * Otherwise uncritical. @@ -986,7 +982,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, qu static void quirk_disable_pxb(struct pci_dev *pdev) { u16 config; - + if (pdev->revision != 0x04) /* Only C0 requires this */ return; pci_read_config_word(pdev, 0x40, &config); @@ -1094,11 +1090,11 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge * is not activated. The myth is that Asus said that they do not want the * users to be irritated by just another PCI Device in the Win98 device - * manager. (see the file prog/hotplug/README.p4b in the lm_sensors + * manager. (see the file prog/hotplug/README.p4b in the lm_sensors * package 2.7.0 for details) * - * The SMBus PCI Device can be activated by setting a bit in the ICH LPC - * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it + * The SMBus PCI Device can be activated by setting a bit in the ICH LPC + * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it * becomes necessary to do this tweak in two steps -- the chosen trigger * is either the Host bridge (preferred) or on-board VGA controller. * @@ -1253,7 +1249,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asu static void asus_hides_smbus_lpc(struct pci_dev *dev) { u16 val; - + if (likely(!asus_hides_smbus)) return; @@ -1640,8 +1636,8 @@ static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev) dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", dev->vendor, dev->device); } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); /* * disable boot interrupts on HT-1000 @@ -1673,8 +1669,8 @@ static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev) dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", dev->vendor, dev->device); } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); /* * disable boot interrupts on AMD and ATI chipsets @@ -1730,8 +1726,8 @@ static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev) dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", dev->vendor, dev->device); } -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); #endif /* CONFIG_X86_IO_APIC */ /* @@ -2127,8 +2123,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1); #ifdef CONFIG_PCI_MSI /* Some chipsets do not support MSI. We cannot easily rely on setting * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually - * some other busses controlled by the chipset even if Linux is not - * aware of it. Instead of setting the flag on all busses in the + * some other buses controlled by the chipset even if Linux is not + * aware of it. Instead of setting the flag on all buses in the * machine, simply disable MSI globally. */ static void quirk_disable_all_msi(struct pci_dev *dev) @@ -2288,14 +2284,14 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, nvenet_msi_disable); /* - * Some versions of the MCP55 bridge from nvidia have a legacy irq routing - * config register. This register controls the routing of legacy interrupts - * from devices that route through the MCP55. If this register is misprogramed - * interrupts are only sent to the bsp, unlike conventional systems where the - * irq is broadxast to all online cpus. Not having this register set - * properly prevents kdump from booting up properly, so lets make sure that - * we have it set correctly. - * Note this is an undocumented register. + * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing + * config register. This register controls the routing of legacy + * interrupts from devices that route through the MCP55. If this register + * is misprogrammed, interrupts are only sent to the BSP, unlike + * conventional systems where the IRQ is broadcast to all online CPUs. Not + * having this register set properly prevents kdump from booting up + * properly, so let's make sure that we have it set correctly. + * Note that this is an undocumented register. */ static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev) { @@ -2626,7 +2622,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091, /* Allow manual resource allocation for PCI hotplug bridges * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6), - * kernel fails to allocate resources when hotplug device is + * kernel fails to allocate resources when hotplug device is * inserted and PCI bus is rescanned. */ static void quirk_hotplug_bridge(struct pci_dev *dev) diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 8fc54b7327bc..1576851028db 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -7,7 +7,7 @@ static void pci_free_resources(struct pci_dev *dev) { int i; - msi_remove_pci_irq_vectors(dev); + msi_remove_pci_irq_vectors(dev); pci_cleanup_rom(dev); for (i = 0; i < PCI_NUM_RESOURCES; i++) { diff --git a/drivers/pci/search.c b/drivers/pci/search.c index d0627fa9f368..3ff2ac7c14e2 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -1,5 +1,5 @@ /* - * PCI searching functions. + * PCI searching functions. * * Copyright (C) 1993 -- 1997 Drew Eckhardt, Frederic Potter, * David Mosberger-Tang @@ -96,12 +96,12 @@ struct pci_bus * pci_find_bus(int domain, int busnr) * pci_find_next_bus - begin or continue searching for a PCI bus * @from: Previous PCI bus found, or %NULL for new search. * - * Iterates through the list of known PCI busses. A new search is + * Iterates through the list of known PCI buses. A new search is * initiated by passing %NULL as the @from argument. Otherwise if * @from is not %NULL, searches continue from next device on the * global list. */ -struct pci_bus * +struct pci_bus * pci_find_next_bus(const struct pci_bus *from) { struct list_head *n; @@ -119,11 +119,11 @@ pci_find_next_bus(const struct pci_bus *from) /** * pci_get_slot - locate PCI device for a given PCI slot * @bus: PCI bus on which desired PCI device resides - * @devfn: encodes number of PCI slot in which the desired PCI - * device resides and the logical device number within that slot + * @devfn: encodes number of PCI slot in which the desired PCI + * device resides and the logical device number within that slot * in case of multi-function devices. * - * Given a PCI bus and slot/function number, the desired PCI device + * Given a PCI bus and slot/function number, the desired PCI device * is located in the list of PCI devices. * If the device is found, its reference count is increased and this * function returns a pointer to its data structure. The caller must diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 4ce83b26ae9e..219a4106480a 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -292,8 +292,8 @@ static void assign_requested_resources_sorted(struct list_head *head, (!(res->flags & IORESOURCE_ROM_ENABLE)))) add_to_list(fail_head, dev_res->dev, res, - 0 /* dont care */, - 0 /* dont care */); + 0 /* don't care */, + 0 /* don't care */); } reset_resource(res); } @@ -667,9 +667,9 @@ static void pci_bridge_check_ranges(struct pci_bus *bus) if (!io) { pci_write_config_word(bridge, PCI_IO_BASE, 0xf0f0); pci_read_config_word(bridge, PCI_IO_BASE, &io); - pci_write_config_word(bridge, PCI_IO_BASE, 0x0); - } - if (io) + pci_write_config_word(bridge, PCI_IO_BASE, 0x0); + } + if (io) b_res[0].flags |= IORESOURCE_IO; /* DECchip 21050 pass 2 errata: the bridge may miss an address disconnect boundary by one PCI data phase. @@ -819,7 +819,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size, resource_size_t min_align, align; if (!b_res) - return; + return; min_align = window_alignment(bus, IORESOURCE_IO); list_for_each_entry(dev, &bus->devices, bus_list) { @@ -950,7 +950,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, if (realloc_head && i >= PCI_IOV_RESOURCES && i <= PCI_IOV_RESOURCE_END) { r->end = r->start - 1; - add_to_list(realloc_head, dev, r, r_size, 0/* dont' care */); + add_to_list(realloc_head, dev, r, r_size, 0/* don't care */); children_add_size += r_size; continue; } @@ -1456,8 +1456,8 @@ static enum enable_type pci_realloc_detect(struct pci_bus *bus, /* * first try will not touch pci bridge res - * second and later try will clear small leaf bridge res - * will stop till to the max deepth if can not find good one + * second and later try will clear small leaf bridge res + * will stop till to the max depth if can not find good one */ void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus) { diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 07f2eddc09ce..83c4d3bc47ab 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -159,7 +159,7 @@ resource_size_t __weak pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx) return 0; } -static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, +static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, int resno, resource_size_t size) { struct resource *root, *conflict; diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index c1e9284a677b..448ca562d1f8 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -53,7 +53,7 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf) static const char *pci_bus_speed_strings[] = { "33 MHz PCI", /* 0x00 */ "66 MHz PCI", /* 0x01 */ - "66 MHz PCI-X", /* 0x02 */ + "66 MHz PCI-X", /* 0x02 */ "100 MHz PCI-X", /* 0x03 */ "133 MHz PCI-X", /* 0x04 */ NULL, /* 0x05 */ diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c index e1c1ec540893..24750a1b39b6 100644 --- a/drivers/pci/syscall.c +++ b/drivers/pci/syscall.c @@ -44,7 +44,7 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn, default: err = -EINVAL; goto error; - }; + } err = -EIO; if (cfg_ret != PCIBIOS_SUCCESSFUL) diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 0846922b2316..829b98c5c66f 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1604,6 +1604,9 @@ static inline void pcs_irq_set(struct pcs_soc_data *pcs_soc, pcs->write(mask, pcswi->reg); raw_spin_unlock(&pcs->lock); } + + if (pcs_soc->rearm) + pcs_soc->rearm(); } /** @@ -1626,8 +1629,6 @@ static void pcs_irq_unmask(struct irq_data *d) struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d); pcs_irq_set(pcs_soc, d->irq, true); - if (pcs_soc->rearm) - pcs_soc->rearm(); } /** @@ -1678,11 +1679,6 @@ static int pcs_irq_handle(struct pcs_soc_data *pcs_soc) } } - /* - * For debugging on omaps, you may want to call pcs_soc->rearm() - * here to see wake-up interrupts during runtime also. - */ - return count; } diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig index 69616aeaa966..09fde58b12e0 100644 --- a/drivers/platform/Kconfig +++ b/drivers/platform/Kconfig @@ -5,3 +5,4 @@ if GOLDFISH source "drivers/platform/goldfish/Kconfig" endif +source "drivers/platform/chrome/Kconfig" diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile index 8a44a4cd6d1e..3656b7b17b99 100644 --- a/drivers/platform/Makefile +++ b/drivers/platform/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_X86) += x86/ obj-$(CONFIG_OLPC) += olpc/ obj-$(CONFIG_GOLDFISH) += goldfish/ +obj-$(CONFIG_CHROME_PLATFORMS) += chrome/ diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig new file mode 100644 index 000000000000..b13303e75a34 --- /dev/null +++ b/drivers/platform/chrome/Kconfig @@ -0,0 +1,28 @@ +# +# Platform support for Chrome OS hardware (Chromebooks and Chromeboxes) +# + +menuconfig CHROME_PLATFORMS + bool "Platform support for Chrome hardware" + depends on X86 + ---help--- + Say Y here to get to see options for platform support for + various Chromebooks and Chromeboxes. This option alone does + not add any kernel code. + + If you say N, all options in this submenu will be skipped and disabled. + +if CHROME_PLATFORMS + +config CHROMEOS_LAPTOP + tristate "Chrome OS Laptop" + depends on I2C + depends on DMI + ---help--- + This driver instantiates i2c and smbus devices such as + light sensors and touchpads. + + If you have a supported Chromebook, choose Y or M here. + The module will be called chromeos_laptop. + +endif # CHROMEOS_PLATFORMS diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile new file mode 100644 index 000000000000..015e9195e226 --- /dev/null +++ b/drivers/platform/chrome/Makefile @@ -0,0 +1,2 @@ + +obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o diff --git a/drivers/platform/x86/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c index 3e5b4497a1d0..3e5b4497a1d0 100644 --- a/drivers/platform/x86/chromeos_laptop.c +++ b/drivers/platform/chrome/chromeos_laptop.c diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index b51a7460cc49..d9dcd37b5a52 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -79,17 +79,6 @@ config ASUS_LAPTOP If you have an ACPI-compatible ASUS laptop, say Y or M here. -config CHROMEOS_LAPTOP - tristate "Chrome OS Laptop" - depends on I2C - depends on DMI - ---help--- - This driver instantiates i2c and smbus devices such as - light sensors and touchpads. - - If you have a supported Chromebook, choose Y or M here. - The module will be called chromeos_laptop. - config DELL_LAPTOP tristate "Dell Laptop Extras" depends on X86 diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 5dbe19324351..f0e6aa407ffb 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -50,7 +50,6 @@ obj-$(CONFIG_INTEL_MID_POWER_BUTTON) += intel_mid_powerbtn.o obj-$(CONFIG_INTEL_OAKTRAIL) += intel_oaktrail.o obj-$(CONFIG_SAMSUNG_Q10) += samsung-q10.o obj-$(CONFIG_APPLE_GMUX) += apple-gmux.o -obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o obj-$(CONFIG_INTEL_RST) += intel-rst.o obj-$(CONFIG_INTEL_SMARTCONNECT) += intel-smartconnect.o diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c index 605a9be55129..b9429fbf1cd8 100644 --- a/drivers/platform/x86/apple-gmux.c +++ b/drivers/platform/x86/apple-gmux.c @@ -519,7 +519,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id) gmux_data->power_state = VGA_SWITCHEROO_ON; - gmux_data->dhandle = DEVICE_ACPI_HANDLE(&pnp->dev); + gmux_data->dhandle = ACPI_HANDLE(&pnp->dev); if (!gmux_data->dhandle) { pr_err("Cannot find acpi handle for pnp device %s\n", dev_name(&pnp->dev)); diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 0e9c169b42f8..594323a926cf 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -1494,10 +1494,9 @@ static int asus_input_init(struct asus_laptop *asus) int error; input = input_allocate_device(); - if (!input) { - pr_warn("Unable to allocate input device\n"); + if (!input) return -ENOMEM; - } + input->name = "Asus Laptop extra buttons"; input->phys = ASUS_LAPTOP_FILE "/input0"; input->id.bustype = BUS_HOST; diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index bb77e18b3dd4..c608b1d33f4a 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -21,6 +21,7 @@ #include <linux/err.h> #include <linux/dmi.h> #include <linux/io.h> +#include <linux/rfkill.h> #include <linux/power_supply.h> #include <linux/acpi.h> #include <linux/mm.h> @@ -89,6 +90,13 @@ static struct platform_driver platform_driver = { static struct platform_device *platform_device; static struct backlight_device *dell_backlight_device; +static struct rfkill *wifi_rfkill; +static struct rfkill *bluetooth_rfkill; +static struct rfkill *wwan_rfkill; +static bool force_rfkill; + +module_param(force_rfkill, bool, 0444); +MODULE_PARM_DESC(force_rfkill, "enable rfkill on non whitelisted models"); static const struct dmi_system_id dell_device_table[] __initconst = { { @@ -355,6 +363,108 @@ dell_send_request(struct calling_interface_buffer *buffer, int class, return buffer; } +/* Derived from information in DellWirelessCtl.cpp: + Class 17, select 11 is radio control. It returns an array of 32-bit values. + + Input byte 0 = 0: Wireless information + + result[0]: return code + result[1]: + Bit 0: Hardware switch supported + Bit 1: Wifi locator supported + Bit 2: Wifi is supported + Bit 3: Bluetooth is supported + Bit 4: WWAN is supported + Bit 5: Wireless keyboard supported + Bits 6-7: Reserved + Bit 8: Wifi is installed + Bit 9: Bluetooth is installed + Bit 10: WWAN is installed + Bits 11-15: Reserved + Bit 16: Hardware switch is on + Bit 17: Wifi is blocked + Bit 18: Bluetooth is blocked + Bit 19: WWAN is blocked + Bits 20-31: Reserved + result[2]: NVRAM size in bytes + result[3]: NVRAM format version number + + Input byte 0 = 2: Wireless switch configuration + result[0]: return code + result[1]: + Bit 0: Wifi controlled by switch + Bit 1: Bluetooth controlled by switch + Bit 2: WWAN controlled by switch + Bits 3-6: Reserved + Bit 7: Wireless switch config locked + Bit 8: Wifi locator enabled + Bits 9-14: Reserved + Bit 15: Wifi locator setting locked + Bits 16-31: Reserved +*/ + +static int dell_rfkill_set(void *data, bool blocked) +{ + int disable = blocked ? 1 : 0; + unsigned long radio = (unsigned long)data; + int hwswitch_bit = (unsigned long)data - 1; + + get_buffer(); + dell_send_request(buffer, 17, 11); + + /* If the hardware switch controls this radio, and the hardware + switch is disabled, always disable the radio */ + if ((hwswitch_state & BIT(hwswitch_bit)) && + !(buffer->output[1] & BIT(16))) + disable = 1; + + buffer->input[0] = (1 | (radio<<8) | (disable << 16)); + dell_send_request(buffer, 17, 11); + + release_buffer(); + return 0; +} + +/* Must be called with the buffer held */ +static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio, + int status) +{ + if (status & BIT(0)) { + /* Has hw-switch, sync sw_state to BIOS */ + int block = rfkill_blocked(rfkill); + buffer->input[0] = (1 | (radio << 8) | (block << 16)); + dell_send_request(buffer, 17, 11); + } else { + /* No hw-switch, sync BIOS state to sw_state */ + rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16))); + } +} + +static void dell_rfkill_update_hw_state(struct rfkill *rfkill, int radio, + int status) +{ + if (hwswitch_state & (BIT(radio - 1))) + rfkill_set_hw_state(rfkill, !(status & BIT(16))); +} + +static void dell_rfkill_query(struct rfkill *rfkill, void *data) +{ + int status; + + get_buffer(); + dell_send_request(buffer, 17, 11); + status = buffer->output[1]; + + dell_rfkill_update_hw_state(rfkill, (unsigned long)data, status); + + release_buffer(); +} + +static const struct rfkill_ops dell_rfkill_ops = { + .set_block = dell_rfkill_set, + .query = dell_rfkill_query, +}; + static struct dentry *dell_laptop_dir; static int dell_debugfs_show(struct seq_file *s, void *data) @@ -424,6 +534,136 @@ static const struct file_operations dell_debugfs_fops = { .release = single_release, }; +static void dell_update_rfkill(struct work_struct *ignored) +{ + int status; + + get_buffer(); + dell_send_request(buffer, 17, 11); + status = buffer->output[1]; + + if (wifi_rfkill) { + dell_rfkill_update_hw_state(wifi_rfkill, 1, status); + dell_rfkill_update_sw_state(wifi_rfkill, 1, status); + } + if (bluetooth_rfkill) { + dell_rfkill_update_hw_state(bluetooth_rfkill, 2, status); + dell_rfkill_update_sw_state(bluetooth_rfkill, 2, status); + } + if (wwan_rfkill) { + dell_rfkill_update_hw_state(wwan_rfkill, 3, status); + dell_rfkill_update_sw_state(wwan_rfkill, 3, status); + } + + release_buffer(); +} +static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill); + + +static int __init dell_setup_rfkill(void) +{ + int status; + int ret; + const char *product; + + /* + * rfkill causes trouble on various non Latitudes, according to Dell + * actually testing the rfkill functionality is only done on Latitudes. + */ + product = dmi_get_system_info(DMI_PRODUCT_NAME); + if (!force_rfkill && (!product || strncmp(product, "Latitude", 8))) + return 0; + + get_buffer(); + dell_send_request(buffer, 17, 11); + status = buffer->output[1]; + buffer->input[0] = 0x2; + dell_send_request(buffer, 17, 11); + hwswitch_state = buffer->output[1]; + release_buffer(); + + if (!(status & BIT(0))) { + if (force_rfkill) { + /* No hwsitch, clear all hw-controlled bits */ + hwswitch_state &= ~7; + } else { + /* rfkill is only tested on laptops with a hwswitch */ + return 0; + } + } + + if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) { + wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev, + RFKILL_TYPE_WLAN, + &dell_rfkill_ops, (void *) 1); + if (!wifi_rfkill) { + ret = -ENOMEM; + goto err_wifi; + } + ret = rfkill_register(wifi_rfkill); + if (ret) + goto err_wifi; + } + + if ((status & (1<<3|1<<9)) == (1<<3|1<<9)) { + bluetooth_rfkill = rfkill_alloc("dell-bluetooth", + &platform_device->dev, + RFKILL_TYPE_BLUETOOTH, + &dell_rfkill_ops, (void *) 2); + if (!bluetooth_rfkill) { + ret = -ENOMEM; + goto err_bluetooth; + } + ret = rfkill_register(bluetooth_rfkill); + if (ret) + goto err_bluetooth; + } + + if ((status & (1<<4|1<<10)) == (1<<4|1<<10)) { + wwan_rfkill = rfkill_alloc("dell-wwan", + &platform_device->dev, + RFKILL_TYPE_WWAN, + &dell_rfkill_ops, (void *) 3); + if (!wwan_rfkill) { + ret = -ENOMEM; + goto err_wwan; + } + ret = rfkill_register(wwan_rfkill); + if (ret) + goto err_wwan; + } + + return 0; +err_wwan: + rfkill_destroy(wwan_rfkill); + if (bluetooth_rfkill) + rfkill_unregister(bluetooth_rfkill); +err_bluetooth: + rfkill_destroy(bluetooth_rfkill); + if (wifi_rfkill) + rfkill_unregister(wifi_rfkill); +err_wifi: + rfkill_destroy(wifi_rfkill); + + return ret; +} + +static void dell_cleanup_rfkill(void) +{ + if (wifi_rfkill) { + rfkill_unregister(wifi_rfkill); + rfkill_destroy(wifi_rfkill); + } + if (bluetooth_rfkill) { + rfkill_unregister(bluetooth_rfkill); + rfkill_destroy(bluetooth_rfkill); + } + if (wwan_rfkill) { + rfkill_unregister(wwan_rfkill); + rfkill_destroy(wwan_rfkill); + } +} + static int dell_send_intensity(struct backlight_device *bd) { int ret = 0; @@ -515,6 +755,30 @@ static void touchpad_led_exit(void) led_classdev_unregister(&touchpad_led); } +static bool dell_laptop_i8042_filter(unsigned char data, unsigned char str, + struct serio *port) +{ + static bool extended; + + if (str & 0x20) + return false; + + if (unlikely(data == 0xe0)) { + extended = true; + return false; + } else if (unlikely(extended)) { + switch (data) { + case 0x8: + schedule_delayed_work(&dell_rfkill_work, + round_jiffies_relative(HZ / 4)); + break; + } + extended = false; + } + + return false; +} + static int __init dell_init(void) { int max_intensity = 0; @@ -557,10 +821,26 @@ static int __init dell_init(void) } buffer = page_address(bufferpage); + ret = dell_setup_rfkill(); + + if (ret) { + pr_warn("Unable to setup rfkill\n"); + goto fail_rfkill; + } + + ret = i8042_install_filter(dell_laptop_i8042_filter); + if (ret) { + pr_warn("Unable to install key filter\n"); + goto fail_filter; + } + if (quirks && quirks->touchpad_led) touchpad_led_init(&platform_device->dev); dell_laptop_dir = debugfs_create_dir("dell_laptop", NULL); + if (dell_laptop_dir != NULL) + debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL, + &dell_debugfs_fops); #ifdef CONFIG_ACPI /* In the event of an ACPI backlight being available, don't @@ -603,6 +883,11 @@ static int __init dell_init(void) return 0; fail_backlight: + i8042_remove_filter(dell_laptop_i8042_filter); + cancel_delayed_work_sync(&dell_rfkill_work); +fail_filter: + dell_cleanup_rfkill(); +fail_rfkill: free_page((unsigned long)bufferpage); fail_buffer: platform_device_del(platform_device); @@ -620,7 +905,10 @@ static void __exit dell_exit(void) debugfs_remove_recursive(dell_laptop_dir); if (quirks && quirks->touchpad_led) touchpad_led_exit(); + i8042_remove_filter(dell_laptop_i8042_filter); + cancel_delayed_work_sync(&dell_rfkill_work); backlight_device_unregister(dell_backlight_device); + dell_cleanup_rfkill(); if (platform_device) { platform_device_unregister(platform_device); platform_driver_unregister(&platform_driver); diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index fa9a2171cc13..60e0900bc117 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -130,7 +130,8 @@ static const u16 bios_to_linux_keycode[256] __initconst = { KEY_BRIGHTNESSUP, KEY_UNKNOWN, KEY_KBDILLUMTOGGLE, KEY_UNKNOWN, KEY_SWITCHVIDEOMODE, KEY_UNKNOWN, KEY_UNKNOWN, KEY_SWITCHVIDEOMODE, KEY_UNKNOWN, KEY_UNKNOWN, KEY_PROG2, - KEY_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, + KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_MICMUTE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, @@ -139,8 +140,8 @@ static const u16 bios_to_linux_keycode[256] __initconst = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - KEY_PROG3 + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_PROG3 }; static struct input_dev *dell_wmi_input_dev; diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index aefcc32e5634..dec68e7a99c7 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -1203,10 +1203,8 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc) int error; input = input_allocate_device(); - if (!input) { - pr_info("Unable to allocate input device\n"); + if (!input) return -ENOMEM; - } input->name = "Asus EeePC extra buttons"; input->phys = EEEPC_LAPTOP_FILE "/input0"; diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 1c86fa0857c8..8ba8956b5a48 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -54,6 +54,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); #define HPWMI_HARDWARE_QUERY 0x4 #define HPWMI_WIRELESS_QUERY 0x5 #define HPWMI_HOTKEY_QUERY 0xc +#define HPWMI_FEATURE_QUERY 0xd #define HPWMI_WIRELESS2_QUERY 0x1b #define HPWMI_POSTCODEERROR_QUERY 0x2a @@ -292,6 +293,17 @@ static int hp_wmi_tablet_state(void) return (state & 0x4) ? 1 : 0; } +static int hp_wmi_bios_2009_later(void) +{ + int state = 0; + int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state, + sizeof(state), sizeof(state)); + if (ret) + return ret; + + return (state & 0x10) ? 1 : 0; +} + static int hp_wmi_set_block(void *data, bool blocked) { enum hp_wmi_radio r = (enum hp_wmi_radio) data; @@ -871,7 +883,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) gps_rfkill = NULL; rfkill2_count = 0; - if (hp_wmi_rfkill_setup(device)) + if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device)) hp_wmi_rfkill2_setup(device); err = device_create_file(&device->dev, &dev_attr_display); diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 6788acc22ab9..19ec95147f69 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -570,10 +570,8 @@ static int ideapad_input_init(struct ideapad_private *priv) int error; inputdev = input_allocate_device(); - if (!inputdev) { - pr_info("Unable to allocate input device\n"); + if (!inputdev) return -ENOMEM; - } inputdev->name = "Ideapad extra buttons"; inputdev->phys = "ideapad/input0"; diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c index 6b18aba82cfa..8d6775266d66 100644 --- a/drivers/platform/x86/intel_mid_powerbtn.c +++ b/drivers/platform/x86/intel_mid_powerbtn.c @@ -66,10 +66,8 @@ static int mfld_pb_probe(struct platform_device *pdev) return -EINVAL; input = input_allocate_device(); - if (!input) { - dev_err(&pdev->dev, "Input device allocation error\n"); + if (!input) return -ENOMEM; - } input->name = pdev->name; input->phys = "power-button/input0"; diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index d654f831410d..60ea476a9130 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -58,12 +58,56 @@ * message handler is called within firmware. */ -#define IPC_BASE_ADDR 0xFF11C000 /* IPC1 base register address */ -#define IPC_MAX_ADDR 0x100 /* Maximum IPC regisers */ #define IPC_WWBUF_SIZE 20 /* IPC Write buffer Size */ #define IPC_RWBUF_SIZE 20 /* IPC Read buffer Size */ -#define IPC_I2C_BASE 0xFF12B000 /* I2C control register base address */ -#define IPC_I2C_MAX_ADDR 0x10 /* Maximum I2C regisers */ +#define IPC_IOC 0x100 /* IPC command register IOC bit */ + +enum { + SCU_IPC_LINCROFT, + SCU_IPC_PENWELL, + SCU_IPC_CLOVERVIEW, + SCU_IPC_TANGIER, +}; + +/* intel scu ipc driver data*/ +struct intel_scu_ipc_pdata_t { + u32 ipc_base; + u32 i2c_base; + u32 ipc_len; + u32 i2c_len; + u8 irq_mode; +}; + +static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = { + [SCU_IPC_LINCROFT] = { + .ipc_base = 0xff11c000, + .i2c_base = 0xff12b000, + .ipc_len = 0x100, + .i2c_len = 0x10, + .irq_mode = 0, + }, + [SCU_IPC_PENWELL] = { + .ipc_base = 0xff11c000, + .i2c_base = 0xff12b000, + .ipc_len = 0x100, + .i2c_len = 0x10, + .irq_mode = 1, + }, + [SCU_IPC_CLOVERVIEW] = { + .ipc_base = 0xff11c000, + .i2c_base = 0xff12b000, + .ipc_len = 0x100, + .i2c_len = 0x10, + .irq_mode = 1, + }, + [SCU_IPC_TANGIER] = { + .ipc_base = 0xff009000, + .i2c_base = 0xff00d000, + .ipc_len = 0x100, + .i2c_len = 0x10, + .irq_mode = 0, + }, +}; static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id); static void ipc_remove(struct pci_dev *pdev); @@ -72,6 +116,8 @@ struct intel_scu_ipc_dev { struct pci_dev *pdev; void __iomem *ipc_base; void __iomem *i2c_base; + struct completion cmd_complete; + u8 irq_mode; }; static struct intel_scu_ipc_dev ipcdev; /* Only one for now */ @@ -98,6 +144,10 @@ static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */ */ static inline void ipc_command(u32 cmd) /* Send ipc command */ { + if (ipcdev.irq_mode) { + reinit_completion(&ipcdev.cmd_complete); + writel(cmd | IPC_IOC, ipcdev.ipc_base); + } writel(cmd, ipcdev.ipc_base); } @@ -156,6 +206,30 @@ static inline int busy_loop(void) /* Wait till scu status is busy */ return 0; } +/* Wait till ipc ioc interrupt is received or timeout in 3 HZ */ +static inline int ipc_wait_for_interrupt(void) +{ + int status; + + if (!wait_for_completion_timeout(&ipcdev.cmd_complete, 3 * HZ)) { + struct device *dev = &ipcdev.pdev->dev; + dev_err(dev, "IPC timed out\n"); + return -ETIMEDOUT; + } + + status = ipc_read_status(); + + if ((status >> 1) & 1) + return -EIO; + + return 0; +} + +int intel_scu_ipc_check_status(void) +{ + return ipcdev.irq_mode ? ipc_wait_for_interrupt() : busy_loop(); +} + /* Read/Write power control(PMIC in Langwell, MSIC in PenWell) registers */ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id) { @@ -196,8 +270,8 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id) ipc_command(4 << 16 | id << 12 | 0 << 8 | op); } - err = busy_loop(); - if (id == IPC_CMD_PCNTRL_R) { /* Read rbuf */ + err = intel_scu_ipc_check_status(); + if (!err && id == IPC_CMD_PCNTRL_R) { /* Read rbuf */ /* Workaround: values are read as 0 without memcpy_fromio */ memcpy_fromio(cbuf, ipcdev.ipc_base + 0x90, 16); for (nc = 0; nc < count; nc++) @@ -391,7 +465,7 @@ int intel_scu_ipc_simple_command(int cmd, int sub) return -ENODEV; } ipc_command(sub << 12 | cmd); - err = busy_loop(); + err = intel_scu_ipc_check_status(); mutex_unlock(&ipclock); return err; } @@ -425,10 +499,12 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen, ipc_data_writel(*in++, 4 * i); ipc_command((inlen << 16) | (sub << 12) | cmd); - err = busy_loop(); + err = intel_scu_ipc_check_status(); - for (i = 0; i < outlen; i++) - *out++ = ipc_data_readl(4 * i); + if (!err) { + for (i = 0; i < outlen; i++) + *out++ = ipc_data_readl(4 * i); + } mutex_unlock(&ipclock); return err; @@ -491,6 +567,9 @@ EXPORT_SYMBOL(intel_scu_ipc_i2c_cntrl); */ static irqreturn_t ioc(int irq, void *dev_id) { + if (ipcdev.irq_mode) + complete(&ipcdev.cmd_complete); + return IRQ_HANDLED; } @@ -504,13 +583,18 @@ static irqreturn_t ioc(int irq, void *dev_id) */ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id) { - int err; + int err, pid; + struct intel_scu_ipc_pdata_t *pdata; resource_size_t pci_resource; if (ipcdev.pdev) /* We support only one SCU */ return -EBUSY; + pid = id->driver_data; + pdata = &intel_scu_ipc_pdata[pid]; + ipcdev.pdev = pci_dev_get(dev); + ipcdev.irq_mode = pdata->irq_mode; err = pci_enable_device(dev); if (err) @@ -524,14 +608,16 @@ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id) if (!pci_resource) return -ENOMEM; + init_completion(&ipcdev.cmd_complete); + if (request_irq(dev->irq, ioc, 0, "intel_scu_ipc", &ipcdev)) return -EBUSY; - ipcdev.ipc_base = ioremap_nocache(IPC_BASE_ADDR, IPC_MAX_ADDR); + ipcdev.ipc_base = ioremap_nocache(pdata->ipc_base, pdata->ipc_len); if (!ipcdev.ipc_base) return -ENOMEM; - ipcdev.i2c_base = ioremap_nocache(IPC_I2C_BASE, IPC_I2C_MAX_ADDR); + ipcdev.i2c_base = ioremap_nocache(pdata->i2c_base, pdata->i2c_len); if (!ipcdev.i2c_base) { iounmap(ipcdev.ipc_base); return -ENOMEM; @@ -564,7 +650,10 @@ static void ipc_remove(struct pci_dev *pdev) } static DEFINE_PCI_DEVICE_TABLE(pci_ids) = { - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x082a)}, + {PCI_VDEVICE(INTEL, 0x082a), SCU_IPC_LINCROFT}, + {PCI_VDEVICE(INTEL, 0x080e), SCU_IPC_PENWELL}, + {PCI_VDEVICE(INTEL, 0x08ea), SCU_IPC_CLOVERVIEW}, + {PCI_VDEVICE(INTEL, 0x11a0), SCU_IPC_TANGIER}, { 0,} }; MODULE_DEVICE_TABLE(pci, pci_ids); diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index 10d12b221601..3008fd20572e 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -490,11 +490,8 @@ static int acpi_pcc_init_input(struct pcc_acpi *pcc) int error; input_dev = input_allocate_device(); - if (!input_dev) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Couldn't allocate input device for hotkey")); + if (!input_dev) return -ENOMEM; - } input_dev->name = ACPI_PCC_DRIVER_NAME; input_dev->phys = ACPI_PCC_INPUT_PHYS; diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 47caab0ea7a1..fb233ae7bb0e 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -140,12 +140,12 @@ MODULE_PARM_DESC(kbd_backlight_timeout, "on the model (default: no change from current value)"); #ifdef CONFIG_PM_SLEEP -static void sony_nc_kbd_backlight_resume(void); static void sony_nc_thermal_resume(void); #endif static int sony_nc_kbd_backlight_setup(struct platform_device *pd, unsigned int handle); -static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd); +static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd, + unsigned int handle); static int sony_nc_battery_care_setup(struct platform_device *pd, unsigned int handle); @@ -304,8 +304,8 @@ static int sony_laptop_input_keycode_map[] = { KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */ KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */ KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */ - KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */ - KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */ + KEY_FN_1, /* 17 SONYPI_EVENT_FNKEY_1 */ + KEY_FN_2, /* 18 SONYPI_EVENT_FNKEY_2 */ KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */ KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */ KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */ @@ -1444,7 +1444,7 @@ static void sony_nc_function_cleanup(struct platform_device *pd) case 0x014b: case 0x014c: case 0x0163: - sony_nc_kbd_backlight_cleanup(pd); + sony_nc_kbd_backlight_cleanup(pd, handle); break; default: continue; @@ -1486,13 +1486,6 @@ static void sony_nc_function_resume(void) case 0x0135: sony_nc_rfkill_update(); break; - case 0x0137: - case 0x0143: - case 0x014b: - case 0x014c: - case 0x0163: - sony_nc_kbd_backlight_resume(); - break; default: continue; } @@ -1822,6 +1815,12 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd, int result; int ret = 0; + if (kbdbl_ctl) { + pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n", + handle, kbdbl_ctl->handle); + return -EBUSY; + } + /* verify the kbd backlight presence, these handles are not used for * keyboard backlight only */ @@ -1881,9 +1880,10 @@ outkzalloc: return ret; } -static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd) +static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd, + unsigned int handle) { - if (kbdbl_ctl) { + if (kbdbl_ctl && handle == kbdbl_ctl->handle) { device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr); device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr); kfree(kbdbl_ctl); @@ -1891,25 +1891,6 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd) } } -#ifdef CONFIG_PM_SLEEP -static void sony_nc_kbd_backlight_resume(void) -{ - int ignore = 0; - - if (!kbdbl_ctl) - return; - - if (kbdbl_ctl->mode == 0) - sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base, - &ignore); - - if (kbdbl_ctl->timeout != 0) - sony_call_snc_handle(kbdbl_ctl->handle, - (kbdbl_ctl->base + 0x200) | - (kbdbl_ctl->timeout << 0x10), &ignore); -} -#endif - struct battery_care_control { struct device_attribute attrs[2]; unsigned int handle; diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 05e046aa5e31..58b0274d24cc 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -6438,7 +6438,12 @@ static struct ibm_struct brightness_driver_data = { #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control" #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME -static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */ +#if SNDRV_CARDS <= 32 +#define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1) +#else +#define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1) +#endif +static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */ static char *alsa_id = "ThinkPadEC"; static bool alsa_enable = SNDRV_DEFAULT_ENABLE1; @@ -9163,7 +9168,6 @@ static int __init thinkpad_acpi_module_init(void) mutex_init(&tpacpi_inputdev_send_mutex); tpacpi_inputdev = input_allocate_device(); if (!tpacpi_inputdev) { - pr_err("unable to allocate input device\n"); thinkpad_acpi_module_exit(); return -ENOMEM; } else { diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c index 67897c8740ba..e597de05e6c2 100644 --- a/drivers/platform/x86/topstar-laptop.c +++ b/drivers/platform/x86/topstar-laptop.c @@ -97,10 +97,8 @@ static int acpi_topstar_init_hkey(struct topstar_hkey *hkey) int error; input = input_allocate_device(); - if (!input) { - pr_err("Unable to allocate input device\n"); + if (!input) return -ENOMEM; - } input->name = "Topstar Laptop extra buttons"; input->phys = "topstar/input0"; diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 0cfadb65f7c6..7fce391818d3 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -975,10 +975,8 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) u32 hci_result; dev->hotkey_dev = input_allocate_device(); - if (!dev->hotkey_dev) { - pr_info("Unable to register input device\n"); + if (!dev->hotkey_dev) return -ENOMEM; - } dev->hotkey_dev->name = "Toshiba input device"; dev->hotkey_dev->phys = "toshiba_acpi/input0"; diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index 62e8c221d01e..c2e7b2657aeb 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -672,8 +672,10 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, struct wmi_block *wblock; wblock = dev_get_drvdata(dev); - if (!wblock) - return -ENOMEM; + if (!wblock) { + strcat(buf, "\n"); + return strlen(buf); + } wmi_gtoa(wblock->gblock.guid, guid_string); diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 747826d99059..14655a0f0431 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -89,7 +89,7 @@ static int pnpacpi_set_resources(struct pnp_dev *dev) pnp_dbg(&dev->dev, "set resources\n"); - handle = DEVICE_ACPI_HANDLE(&dev->dev); + handle = ACPI_HANDLE(&dev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) { dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__); return -ENODEV; @@ -122,7 +122,7 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev) dev_dbg(&dev->dev, "disable resources\n"); - handle = DEVICE_ACPI_HANDLE(&dev->dev); + handle = ACPI_HANDLE(&dev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) { dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__); return 0; @@ -144,7 +144,7 @@ static bool pnpacpi_can_wakeup(struct pnp_dev *dev) struct acpi_device *acpi_dev; acpi_handle handle; - handle = DEVICE_ACPI_HANDLE(&dev->dev); + handle = ACPI_HANDLE(&dev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) { dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__); return false; @@ -159,7 +159,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state) acpi_handle handle; int error = 0; - handle = DEVICE_ACPI_HANDLE(&dev->dev); + handle = ACPI_HANDLE(&dev->dev); if (!handle || acpi_bus_get_device(handle, &acpi_dev)) { dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__); return 0; @@ -194,7 +194,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state) static int pnpacpi_resume(struct pnp_dev *dev) { struct acpi_device *acpi_dev; - acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle handle = ACPI_HANDLE(&dev->dev); int error = 0; if (!handle || acpi_bus_get_device(handle, &acpi_dev)) { diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index e6f92b450913..5e2054afe840 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -346,6 +346,12 @@ config CHARGER_BQ24190 help Say Y to enable support for the TI BQ24190 battery charger. +config CHARGER_BQ24735 + tristate "TI BQ24735 battery charger support" + depends on I2C && GPIOLIB + help + Say Y to enable support for the TI BQ24735 battery charger. + config CHARGER_SMB347 tristate "Summit Microelectronics SMB347 Battery Charger" depends on I2C diff --git a/drivers/power/Makefile b/drivers/power/Makefile index a4b74177706f..372b4e8ab598 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o +obj-$(CONFIG_CHARGER_BQ24735) += bq24735-charger.o obj-$(CONFIG_POWER_AVS) += avs/ obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o obj-$(CONFIG_CHARGER_TPS65090) += tps65090-charger.o diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index a4c4a10b3a41..19110aa613a1 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -766,7 +766,6 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, ret = -ENXIO; break; } - break; case USB_STAT_CARKIT_1: case USB_STAT_CARKIT_2: case USB_STAT_ACA_DOCK_CHARGER: @@ -1387,8 +1386,12 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger, * the GPADC module independant of the AB8500 chargers */ if (!di->vddadc_en_ac) { - regulator_enable(di->regu); - di->vddadc_en_ac = true; + ret = regulator_enable(di->regu); + if (ret) + dev_warn(di->dev, + "Failed to enable regulator\n"); + else + di->vddadc_en_ac = true; } /* Check if the requested voltage or current is valid */ @@ -1556,8 +1559,12 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger, * the GPADC module independant of the AB8500 chargers */ if (!di->vddadc_en_usb) { - regulator_enable(di->regu); - di->vddadc_en_usb = true; + ret = regulator_enable(di->regu); + if (ret) + dev_warn(di->dev, + "Failed to enable regulator\n"); + else + di->vddadc_en_usb = true; } /* Enable USB charging */ diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c index 0727f9256138..df893dd1447d 100644 --- a/drivers/power/bq2415x_charger.c +++ b/drivers/power/bq2415x_charger.c @@ -605,9 +605,13 @@ static int bq2415x_set_battery_regulation_voltage(struct bq2415x_device *bq, { int val = (mV/10 - 350) / 2; + /* + * According to datasheet, maximum battery regulation voltage is + * 4440mV which is b101111 = 47. + */ if (val < 0) val = 0; - else if (val > 94) /* FIXME: Max is 94 or 122 ? Set max value ? */ + else if (val > 47) return -EINVAL; return bq2415x_i2c_write_mask(bq, BQ2415X_REG_VOLTAGE, val, diff --git a/drivers/power/bq24735-charger.c b/drivers/power/bq24735-charger.c new file mode 100644 index 000000000000..d022b823305b --- /dev/null +++ b/drivers/power/bq24735-charger.c @@ -0,0 +1,419 @@ +/* + * Battery charger driver for TI BQ24735 + * + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/power_supply.h> +#include <linux/slab.h> + +#include <linux/power/bq24735-charger.h> + +#define BQ24735_CHG_OPT 0x12 +#define BQ24735_CHG_OPT_CHARGE_DISABLE (1 << 0) +#define BQ24735_CHG_OPT_AC_PRESENT (1 << 4) +#define BQ24735_CHARGE_CURRENT 0x14 +#define BQ24735_CHARGE_CURRENT_MASK 0x1fc0 +#define BQ24735_CHARGE_VOLTAGE 0x15 +#define BQ24735_CHARGE_VOLTAGE_MASK 0x7ff0 +#define BQ24735_INPUT_CURRENT 0x3f +#define BQ24735_INPUT_CURRENT_MASK 0x1f80 +#define BQ24735_MANUFACTURER_ID 0xfe +#define BQ24735_DEVICE_ID 0xff + +struct bq24735 { + struct power_supply charger; + struct i2c_client *client; + struct bq24735_platform *pdata; +}; + +static inline struct bq24735 *to_bq24735(struct power_supply *psy) +{ + return container_of(psy, struct bq24735, charger); +} + +static enum power_supply_property bq24735_charger_properties[] = { + POWER_SUPPLY_PROP_ONLINE, +}; + +static inline int bq24735_write_word(struct i2c_client *client, u8 reg, + u16 value) +{ + return i2c_smbus_write_word_data(client, reg, le16_to_cpu(value)); +} + +static inline int bq24735_read_word(struct i2c_client *client, u8 reg) +{ + s32 ret = i2c_smbus_read_word_data(client, reg); + + return ret < 0 ? ret : le16_to_cpu(ret); +} + +static int bq24735_update_word(struct i2c_client *client, u8 reg, + u16 mask, u16 value) +{ + unsigned int tmp; + int ret; + + ret = bq24735_read_word(client, reg); + if (ret < 0) + return ret; + + tmp = ret & ~mask; + tmp |= value & mask; + + return bq24735_write_word(client, reg, tmp); +} + +static inline int bq24735_enable_charging(struct bq24735 *charger) +{ + return bq24735_update_word(charger->client, BQ24735_CHG_OPT, + BQ24735_CHG_OPT_CHARGE_DISABLE, + ~BQ24735_CHG_OPT_CHARGE_DISABLE); +} + +static inline int bq24735_disable_charging(struct bq24735 *charger) +{ + return bq24735_update_word(charger->client, BQ24735_CHG_OPT, + BQ24735_CHG_OPT_CHARGE_DISABLE, + BQ24735_CHG_OPT_CHARGE_DISABLE); +} + +static int bq24735_config_charger(struct bq24735 *charger) +{ + struct bq24735_platform *pdata = charger->pdata; + int ret; + u16 value; + + if (pdata->charge_current) { + value = pdata->charge_current & BQ24735_CHARGE_CURRENT_MASK; + + ret = bq24735_write_word(charger->client, + BQ24735_CHARGE_CURRENT, value); + if (ret < 0) { + dev_err(&charger->client->dev, + "Failed to write charger current : %d\n", + ret); + return ret; + } + } + + if (pdata->charge_voltage) { + value = pdata->charge_voltage & BQ24735_CHARGE_VOLTAGE_MASK; + + ret = bq24735_write_word(charger->client, + BQ24735_CHARGE_VOLTAGE, value); + if (ret < 0) { + dev_err(&charger->client->dev, + "Failed to write charger voltage : %d\n", + ret); + return ret; + } + } + + if (pdata->input_current) { + value = pdata->input_current & BQ24735_INPUT_CURRENT_MASK; + + ret = bq24735_write_word(charger->client, + BQ24735_INPUT_CURRENT, value); + if (ret < 0) { + dev_err(&charger->client->dev, + "Failed to write input current : %d\n", + ret); + return ret; + } + } + + return 0; +} + +static bool bq24735_charger_is_present(struct bq24735 *charger) +{ + struct bq24735_platform *pdata = charger->pdata; + int ret; + + if (pdata->status_gpio_valid) { + ret = gpio_get_value_cansleep(pdata->status_gpio); + return ret ^= pdata->status_gpio_active_low == 0; + } else { + int ac = 0; + + ac = bq24735_read_word(charger->client, BQ24735_CHG_OPT); + if (ac < 0) { + dev_err(&charger->client->dev, + "Failed to read charger options : %d\n", + ac); + return false; + } + return (ac & BQ24735_CHG_OPT_AC_PRESENT) ? true : false; + } + + return false; +} + +static irqreturn_t bq24735_charger_isr(int irq, void *devid) +{ + struct power_supply *psy = devid; + struct bq24735 *charger = to_bq24735(psy); + + if (bq24735_charger_is_present(charger)) + bq24735_enable_charging(charger); + else + bq24735_disable_charging(charger); + + power_supply_changed(psy); + + return IRQ_HANDLED; +} + +static int bq24735_charger_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct bq24735 *charger; + + charger = container_of(psy, struct bq24735, charger); + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = bq24735_charger_is_present(charger) ? 1 : 0; + break; + default: + return -EINVAL; + } + + return 0; +} + +static struct bq24735_platform *bq24735_parse_dt_data(struct i2c_client *client) +{ + struct bq24735_platform *pdata; + struct device_node *np = client->dev.of_node; + u32 val; + int ret; + enum of_gpio_flags flags; + + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&client->dev, + "Memory alloc for bq24735 pdata failed\n"); + return NULL; + } + + pdata->status_gpio = of_get_named_gpio_flags(np, "ti,ac-detect-gpios", + 0, &flags); + + if (flags & OF_GPIO_ACTIVE_LOW) + pdata->status_gpio_active_low = 1; + + ret = of_property_read_u32(np, "ti,charge-current", &val); + if (!ret) + pdata->charge_current = val; + + ret = of_property_read_u32(np, "ti,charge-voltage", &val); + if (!ret) + pdata->charge_voltage = val; + + ret = of_property_read_u32(np, "ti,input-current", &val); + if (!ret) + pdata->input_current = val; + + return pdata; +} + +static int bq24735_charger_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int ret; + struct bq24735 *charger; + struct power_supply *supply; + char *name; + + charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL); + if (!charger) + return -ENOMEM; + + charger->pdata = client->dev.platform_data; + + if (IS_ENABLED(CONFIG_OF) && !charger->pdata && client->dev.of_node) + charger->pdata = bq24735_parse_dt_data(client); + + if (!charger->pdata) { + dev_err(&client->dev, "no platform data provided\n"); + return -EINVAL; + } + + name = (char *)charger->pdata->name; + if (!name) { + name = kasprintf(GFP_KERNEL, "bq24735@%s", + dev_name(&client->dev)); + if (!name) { + dev_err(&client->dev, "Failed to alloc device name\n"); + return -ENOMEM; + } + } + + charger->client = client; + + supply = &charger->charger; + + supply->name = name; + supply->type = POWER_SUPPLY_TYPE_MAINS; + supply->properties = bq24735_charger_properties; + supply->num_properties = ARRAY_SIZE(bq24735_charger_properties); + supply->get_property = bq24735_charger_get_property; + supply->supplied_to = charger->pdata->supplied_to; + supply->num_supplicants = charger->pdata->num_supplicants; + supply->of_node = client->dev.of_node; + + i2c_set_clientdata(client, charger); + + ret = bq24735_read_word(client, BQ24735_MANUFACTURER_ID); + if (ret < 0) { + dev_err(&client->dev, "Failed to read manufacturer id : %d\n", + ret); + goto err_free_name; + } else if (ret != 0x0040) { + dev_err(&client->dev, + "manufacturer id mismatch. 0x0040 != 0x%04x\n", ret); + ret = -ENODEV; + goto err_free_name; + } + + ret = bq24735_read_word(client, BQ24735_DEVICE_ID); + if (ret < 0) { + dev_err(&client->dev, "Failed to read device id : %d\n", ret); + goto err_free_name; + } else if (ret != 0x000B) { + dev_err(&client->dev, + "device id mismatch. 0x000b != 0x%04x\n", ret); + ret = -ENODEV; + goto err_free_name; + } + + if (gpio_is_valid(charger->pdata->status_gpio)) { + ret = devm_gpio_request(&client->dev, + charger->pdata->status_gpio, + name); + if (ret) { + dev_err(&client->dev, + "Failed GPIO request for GPIO %d: %d\n", + charger->pdata->status_gpio, ret); + } + + charger->pdata->status_gpio_valid = !ret; + } + + ret = bq24735_config_charger(charger); + if (ret < 0) { + dev_err(&client->dev, "failed in configuring charger"); + goto err_free_name; + } + + /* check for AC adapter presence */ + if (bq24735_charger_is_present(charger)) { + ret = bq24735_enable_charging(charger); + if (ret < 0) { + dev_err(&client->dev, "Failed to enable charging\n"); + goto err_free_name; + } + } + + ret = power_supply_register(&client->dev, supply); + if (ret < 0) { + dev_err(&client->dev, "Failed to register power supply: %d\n", + ret); + goto err_free_name; + } + + if (client->irq) { + ret = devm_request_threaded_irq(&client->dev, client->irq, + NULL, bq24735_charger_isr, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + supply->name, supply); + if (ret) { + dev_err(&client->dev, + "Unable to register IRQ %d err %d\n", + client->irq, ret); + goto err_unregister_supply; + } + } + + return 0; +err_unregister_supply: + power_supply_unregister(supply); +err_free_name: + if (name != charger->pdata->name) + kfree(name); + + return ret; +} + +static int bq24735_charger_remove(struct i2c_client *client) +{ + struct bq24735 *charger = i2c_get_clientdata(client); + + if (charger->client->irq) + devm_free_irq(&charger->client->dev, charger->client->irq, + &charger->charger); + + power_supply_unregister(&charger->charger); + + if (charger->charger.name != charger->pdata->name) + kfree(charger->charger.name); + + return 0; +} + +static const struct i2c_device_id bq24735_charger_id[] = { + { "bq24735-charger", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, bq24735_charger_id); + +static const struct of_device_id bq24735_match_ids[] = { + { .compatible = "ti,bq24735", }, + { /* end */ } +}; +MODULE_DEVICE_TABLE(of, bq24735_match_ids); + +static struct i2c_driver bq24735_charger_driver = { + .driver = { + .name = "bq24735-charger", + .owner = THIS_MODULE, + .of_match_table = bq24735_match_ids, + }, + .probe = bq24735_charger_probe, + .remove = bq24735_charger_remove, + .id_table = bq24735_charger_id, +}; + +module_i2c_driver(bq24735_charger_driver); + +MODULE_DESCRIPTION("bq24735 battery charging driver"); +MODULE_AUTHOR("Darbha Sriharsha <dsriharsha@nvidia.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c index e30e847600bb..7287c0efd6bf 100644 --- a/drivers/power/charger-manager.c +++ b/drivers/power/charger-manager.c @@ -1378,7 +1378,8 @@ static int charger_manager_register_sysfs(struct charger_manager *cm) charger = &desc->charger_regulators[i]; snprintf(buf, 10, "charger.%d", i); - str = kzalloc(sizeof(char) * (strlen(buf) + 1), GFP_KERNEL); + str = devm_kzalloc(cm->dev, + sizeof(char) * (strlen(buf) + 1), GFP_KERNEL); if (!str) { ret = -ENOMEM; goto err; @@ -1452,30 +1453,23 @@ static int charger_manager_probe(struct platform_device *pdev) rtc_dev = NULL; dev_err(&pdev->dev, "Cannot get RTC %s\n", g_desc->rtc_name); - ret = -ENODEV; - goto err_alloc; + return -ENODEV; } } if (!desc) { dev_err(&pdev->dev, "No platform data (desc) found\n"); - ret = -ENODEV; - goto err_alloc; + return -ENODEV; } - cm = kzalloc(sizeof(struct charger_manager), GFP_KERNEL); - if (!cm) { - ret = -ENOMEM; - goto err_alloc; - } + cm = devm_kzalloc(&pdev->dev, + sizeof(struct charger_manager), GFP_KERNEL); + if (!cm) + return -ENOMEM; /* Basic Values. Unspecified are Null or 0 */ cm->dev = &pdev->dev; - cm->desc = kmemdup(desc, sizeof(struct charger_desc), GFP_KERNEL); - if (!cm->desc) { - ret = -ENOMEM; - goto err_alloc_desc; - } + cm->desc = desc; cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */ /* @@ -1498,27 +1492,23 @@ static int charger_manager_probe(struct platform_device *pdev) } if (!desc->charger_regulators || desc->num_charger_regulators < 1) { - ret = -EINVAL; dev_err(&pdev->dev, "charger_regulators undefined\n"); - goto err_no_charger; + return -EINVAL; } if (!desc->psy_charger_stat || !desc->psy_charger_stat[0]) { dev_err(&pdev->dev, "No power supply defined\n"); - ret = -EINVAL; - goto err_no_charger_stat; + return -EINVAL; } /* Counting index only */ while (desc->psy_charger_stat[i]) i++; - cm->charger_stat = kzalloc(sizeof(struct power_supply *) * (i + 1), - GFP_KERNEL); - if (!cm->charger_stat) { - ret = -ENOMEM; - goto err_no_charger_stat; - } + cm->charger_stat = devm_kzalloc(&pdev->dev, + sizeof(struct power_supply *) * i, GFP_KERNEL); + if (!cm->charger_stat) + return -ENOMEM; for (i = 0; desc->psy_charger_stat[i]; i++) { cm->charger_stat[i] = power_supply_get_by_name( @@ -1526,8 +1516,7 @@ static int charger_manager_probe(struct platform_device *pdev) if (!cm->charger_stat[i]) { dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", desc->psy_charger_stat[i]); - ret = -ENODEV; - goto err_chg_stat; + return -ENODEV; } } @@ -1535,21 +1524,18 @@ static int charger_manager_probe(struct platform_device *pdev) if (!cm->fuel_gauge) { dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n", desc->psy_fuel_gauge); - ret = -ENODEV; - goto err_chg_stat; + return -ENODEV; } if (desc->polling_interval_ms == 0 || msecs_to_jiffies(desc->polling_interval_ms) <= CM_JIFFIES_SMALL) { dev_err(&pdev->dev, "polling_interval_ms is too small\n"); - ret = -EINVAL; - goto err_chg_stat; + return -EINVAL; } if (!desc->temperature_out_of_range) { dev_err(&pdev->dev, "there is no temperature_out_of_range\n"); - ret = -EINVAL; - goto err_chg_stat; + return -EINVAL; } if (!desc->charging_max_duration_ms || @@ -1570,14 +1556,13 @@ static int charger_manager_probe(struct platform_device *pdev) cm->charger_psy.name = cm->psy_name_buf; /* Allocate for psy properties because they may vary */ - cm->charger_psy.properties = kzalloc(sizeof(enum power_supply_property) + cm->charger_psy.properties = devm_kzalloc(&pdev->dev, + sizeof(enum power_supply_property) * (ARRAY_SIZE(default_charger_props) + - NUM_CHARGER_PSY_OPTIONAL), - GFP_KERNEL); - if (!cm->charger_psy.properties) { - ret = -ENOMEM; - goto err_chg_stat; - } + NUM_CHARGER_PSY_OPTIONAL), GFP_KERNEL); + if (!cm->charger_psy.properties) + return -ENOMEM; + memcpy(cm->charger_psy.properties, default_charger_props, sizeof(enum power_supply_property) * ARRAY_SIZE(default_charger_props)); @@ -1614,7 +1599,7 @@ static int charger_manager_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Cannot register charger-manager with name \"%s\"\n", cm->charger_psy.name); - goto err_register; + return ret; } /* Register extcon device for charger cable */ @@ -1655,8 +1640,6 @@ err_reg_sysfs: charger = &desc->charger_regulators[i]; sysfs_remove_group(&cm->charger_psy.dev->kobj, &charger->attr_g); - - kfree(charger->attr_g.name); } err_reg_extcon: for (i = 0; i < desc->num_charger_regulators; i++) { @@ -1674,16 +1657,7 @@ err_reg_extcon: } power_supply_unregister(&cm->charger_psy); -err_register: - kfree(cm->charger_psy.properties); -err_chg_stat: - kfree(cm->charger_stat); -err_no_charger_stat: -err_no_charger: - kfree(cm->desc); -err_alloc_desc: - kfree(cm); -err_alloc: + return ret; } @@ -1718,11 +1692,6 @@ static int charger_manager_remove(struct platform_device *pdev) try_charger_enable(cm, false); - kfree(cm->charger_psy.properties); - kfree(cm->charger_stat); - kfree(cm->desc); - kfree(cm); - return 0; } diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c index fc04d191579b..1bb3a91b1acc 100644 --- a/drivers/power/isp1704_charger.c +++ b/drivers/power/isp1704_charger.c @@ -2,6 +2,7 @@ * ISP1704 USB Charger Detection driver * * Copyright (C) 2010 Nokia Corporation + * Copyright (C) 2012 - 2013 Pali Rohár <pali.rohar@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -65,10 +66,6 @@ struct isp1704_charger { unsigned present:1; unsigned online:1; unsigned current_max; - - /* temp storage variables */ - unsigned long event; - unsigned max_power; }; static inline int isp1704_read(struct isp1704_charger *isp, u32 reg) @@ -231,56 +228,59 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp) return ret; } +static inline int isp1704_charger_detect_dcp(struct isp1704_charger *isp) +{ + if (isp1704_charger_detect(isp) && + isp1704_charger_type(isp) == POWER_SUPPLY_TYPE_USB_DCP) + return true; + else + return false; +} + static void isp1704_charger_work(struct work_struct *data) { - int detect; - unsigned long event; - unsigned power; struct isp1704_charger *isp = container_of(data, struct isp1704_charger, work); static DEFINE_MUTEX(lock); - event = isp->event; - power = isp->max_power; - mutex_lock(&lock); - if (event != USB_EVENT_NONE) - isp1704_charger_set_power(isp, 1); - - switch (event) { + switch (isp->phy->last_event) { case USB_EVENT_VBUS: - isp->online = true; + /* do not call wall charger detection more times */ + if (!isp->present) { + isp->online = true; + isp->present = 1; + isp1704_charger_set_power(isp, 1); + + /* detect wall charger */ + if (isp1704_charger_detect_dcp(isp)) { + isp->psy.type = POWER_SUPPLY_TYPE_USB_DCP; + isp->current_max = 1800; + } else { + isp->psy.type = POWER_SUPPLY_TYPE_USB; + isp->current_max = 500; + } - /* detect charger */ - detect = isp1704_charger_detect(isp); - - if (detect) { - isp->present = detect; - isp->psy.type = isp1704_charger_type(isp); + /* enable data pullups */ + if (isp->phy->otg->gadget) + usb_gadget_connect(isp->phy->otg->gadget); } - switch (isp->psy.type) { - case POWER_SUPPLY_TYPE_USB_DCP: - isp->current_max = 1800; - break; - case POWER_SUPPLY_TYPE_USB_CDP: + if (isp->psy.type != POWER_SUPPLY_TYPE_USB_DCP) { /* * Only 500mA here or high speed chirp * handshaking may break */ - isp->current_max = 500; - /* FALLTHROUGH */ - case POWER_SUPPLY_TYPE_USB: - default: - /* enable data pullups */ - if (isp->phy->otg->gadget) - usb_gadget_connect(isp->phy->otg->gadget); + if (isp->current_max > 500) + isp->current_max = 500; + + if (isp->current_max > 100) + isp->psy.type = POWER_SUPPLY_TYPE_USB_CDP; } break; case USB_EVENT_NONE: isp->online = false; - isp->current_max = 0; isp->present = 0; isp->current_max = 0; isp->psy.type = POWER_SUPPLY_TYPE_USB; @@ -298,12 +298,6 @@ static void isp1704_charger_work(struct work_struct *data) isp1704_charger_set_power(isp, 0); break; - case USB_EVENT_ENUMERATED: - if (isp->present) - isp->current_max = 1800; - else - isp->current_max = power; - break; default: goto out; } @@ -314,16 +308,11 @@ out: } static int isp1704_notifier_call(struct notifier_block *nb, - unsigned long event, void *power) + unsigned long val, void *v) { struct isp1704_charger *isp = container_of(nb, struct isp1704_charger, nb); - isp->event = event; - - if (power) - isp->max_power = *((unsigned *)power); - schedule_work(&isp->work); return NOTIFY_OK; @@ -462,13 +451,13 @@ static int isp1704_charger_probe(struct platform_device *pdev) if (isp->phy->otg->gadget) usb_gadget_disconnect(isp->phy->otg->gadget); + if (isp->phy->last_event == USB_EVENT_NONE) + isp1704_charger_set_power(isp, 0); + /* Detect charger if VBUS is valid (the cable was already plugged). */ - ret = isp1704_read(isp, ULPI_USB_INT_STS); - isp1704_charger_set_power(isp, 0); - if ((ret & ULPI_INT_VBUS_VALID) && !isp->phy->otg->default_a) { - isp->event = USB_EVENT_VBUS; + if (isp->phy->last_event == USB_EVENT_VBUS && + !isp->phy->otg->default_a) schedule_work(&isp->work); - } return 0; fail2: diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c index d664ef58afa7..e0b22f9b6fdd 100644 --- a/drivers/power/max17042_battery.c +++ b/drivers/power/max17042_battery.c @@ -33,6 +33,7 @@ #include <linux/power_supply.h> #include <linux/power/max17042_battery.h> #include <linux/of.h> +#include <linux/regmap.h> /* Status register bits */ #define STATUS_POR_BIT (1 << 1) @@ -67,6 +68,7 @@ struct max17042_chip { struct i2c_client *client; + struct regmap *regmap; struct power_supply battery; enum max170xx_chip_type chip_type; struct max17042_platform_data *pdata; @@ -74,35 +76,6 @@ struct max17042_chip { int init_complete; }; -static int max17042_write_reg(struct i2c_client *client, u8 reg, u16 value) -{ - int ret = i2c_smbus_write_word_data(client, reg, value); - - if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - - return ret; -} - -static int max17042_read_reg(struct i2c_client *client, u8 reg) -{ - int ret = i2c_smbus_read_word_data(client, reg); - - if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - - return ret; -} - -static void max17042_set_reg(struct i2c_client *client, - struct max17042_reg_data *data, int size) -{ - int i; - - for (i = 0; i < size; i++) - max17042_write_reg(client, data[i].addr, data[i].data); -} - static enum power_supply_property max17042_battery_props[] = { POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_CYCLE_COUNT, @@ -125,96 +98,98 @@ static int max17042_get_property(struct power_supply *psy, { struct max17042_chip *chip = container_of(psy, struct max17042_chip, battery); + struct regmap *map = chip->regmap; int ret; + u32 data; if (!chip->init_complete) return -EAGAIN; switch (psp) { case POWER_SUPPLY_PROP_PRESENT: - ret = max17042_read_reg(chip->client, MAX17042_STATUS); + ret = regmap_read(map, MAX17042_STATUS, &data); if (ret < 0) return ret; - if (ret & MAX17042_STATUS_BattAbsent) + if (data & MAX17042_STATUS_BattAbsent) val->intval = 0; else val->intval = 1; break; case POWER_SUPPLY_PROP_CYCLE_COUNT: - ret = max17042_read_reg(chip->client, MAX17042_Cycles); + ret = regmap_read(map, MAX17042_Cycles, &data); if (ret < 0) return ret; - val->intval = ret; + val->intval = data; break; case POWER_SUPPLY_PROP_VOLTAGE_MAX: - ret = max17042_read_reg(chip->client, MAX17042_MinMaxVolt); + ret = regmap_read(map, MAX17042_MinMaxVolt, &data); if (ret < 0) return ret; - val->intval = ret >> 8; + val->intval = data >> 8; val->intval *= 20000; /* Units of LSB = 20mV */ break; case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: if (chip->chip_type == MAX17042) - ret = max17042_read_reg(chip->client, MAX17042_V_empty); + ret = regmap_read(map, MAX17042_V_empty, &data); else - ret = max17042_read_reg(chip->client, MAX17047_V_empty); + ret = regmap_read(map, MAX17047_V_empty, &data); if (ret < 0) return ret; - val->intval = ret >> 7; + val->intval = data >> 7; val->intval *= 10000; /* Units of LSB = 10mV */ break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: - ret = max17042_read_reg(chip->client, MAX17042_VCELL); + ret = regmap_read(map, MAX17042_VCELL, &data); if (ret < 0) return ret; - val->intval = ret * 625 / 8; + val->intval = data * 625 / 8; break; case POWER_SUPPLY_PROP_VOLTAGE_AVG: - ret = max17042_read_reg(chip->client, MAX17042_AvgVCELL); + ret = regmap_read(map, MAX17042_AvgVCELL, &data); if (ret < 0) return ret; - val->intval = ret * 625 / 8; + val->intval = data * 625 / 8; break; case POWER_SUPPLY_PROP_VOLTAGE_OCV: - ret = max17042_read_reg(chip->client, MAX17042_OCVInternal); + ret = regmap_read(map, MAX17042_OCVInternal, &data); if (ret < 0) return ret; - val->intval = ret * 625 / 8; + val->intval = data * 625 / 8; break; case POWER_SUPPLY_PROP_CAPACITY: - ret = max17042_read_reg(chip->client, MAX17042_RepSOC); + ret = regmap_read(map, MAX17042_RepSOC, &data); if (ret < 0) return ret; - val->intval = ret >> 8; + val->intval = data >> 8; break; case POWER_SUPPLY_PROP_CHARGE_FULL: - ret = max17042_read_reg(chip->client, MAX17042_FullCAP); + ret = regmap_read(map, MAX17042_FullCAP, &data); if (ret < 0) return ret; - val->intval = ret * 1000 / 2; + val->intval = data * 1000 / 2; break; case POWER_SUPPLY_PROP_CHARGE_COUNTER: - ret = max17042_read_reg(chip->client, MAX17042_QH); + ret = regmap_read(map, MAX17042_QH, &data); if (ret < 0) return ret; - val->intval = ret * 1000 / 2; + val->intval = data * 1000 / 2; break; case POWER_SUPPLY_PROP_TEMP: - ret = max17042_read_reg(chip->client, MAX17042_TEMP); + ret = regmap_read(map, MAX17042_TEMP, &data); if (ret < 0) return ret; - val->intval = ret; + val->intval = data; /* The value is signed. */ if (val->intval & 0x8000) { val->intval = (0x7fff & ~val->intval) + 1; @@ -226,11 +201,11 @@ static int max17042_get_property(struct power_supply *psy, break; case POWER_SUPPLY_PROP_CURRENT_NOW: if (chip->pdata->enable_current_sense) { - ret = max17042_read_reg(chip->client, MAX17042_Current); + ret = regmap_read(map, MAX17042_Current, &data); if (ret < 0) return ret; - val->intval = ret; + val->intval = data; if (val->intval & 0x8000) { /* Negative */ val->intval = ~val->intval & 0x7fff; @@ -244,12 +219,11 @@ static int max17042_get_property(struct power_supply *psy, break; case POWER_SUPPLY_PROP_CURRENT_AVG: if (chip->pdata->enable_current_sense) { - ret = max17042_read_reg(chip->client, - MAX17042_AvgCurrent); + ret = regmap_read(map, MAX17042_AvgCurrent, &data); if (ret < 0) return ret; - val->intval = ret; + val->intval = data; if (val->intval & 0x8000) { /* Negative */ val->intval = ~val->intval & 0x7fff; @@ -267,16 +241,15 @@ static int max17042_get_property(struct power_supply *psy, return 0; } -static int max17042_write_verify_reg(struct i2c_client *client, - u8 reg, u16 value) +static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value) { int retries = 8; int ret; - u16 read_value; + u32 read_value; do { - ret = i2c_smbus_write_word_data(client, reg, value); - read_value = max17042_read_reg(client, reg); + ret = regmap_write(map, reg, value); + regmap_read(map, reg, &read_value); if (read_value != value) { ret = -EIO; retries--; @@ -284,50 +257,51 @@ static int max17042_write_verify_reg(struct i2c_client *client, } while (retries && read_value != value); if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); + pr_err("%s: err %d\n", __func__, ret); return ret; } -static inline void max17042_override_por( - struct i2c_client *client, u8 reg, u16 value) +static inline void max17042_override_por(struct regmap *map, + u8 reg, u16 value) { if (value) - max17042_write_reg(client, reg, value); + regmap_write(map, reg, value); } static inline void max10742_unlock_model(struct max17042_chip *chip) { - struct i2c_client *client = chip->client; - max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_UNLOCK1); - max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_UNLOCK2); + struct regmap *map = chip->regmap; + regmap_write(map, MAX17042_MLOCKReg1, MODEL_UNLOCK1); + regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2); } static inline void max10742_lock_model(struct max17042_chip *chip) { - struct i2c_client *client = chip->client; - max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_LOCK1); - max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_LOCK2); + struct regmap *map = chip->regmap; + + regmap_write(map, MAX17042_MLOCKReg1, MODEL_LOCK1); + regmap_write(map, MAX17042_MLOCKReg2, MODEL_LOCK2); } static inline void max17042_write_model_data(struct max17042_chip *chip, u8 addr, int size) { - struct i2c_client *client = chip->client; + struct regmap *map = chip->regmap; int i; for (i = 0; i < size; i++) - max17042_write_reg(client, addr + i, - chip->pdata->config_data->cell_char_tbl[i]); + regmap_write(map, addr + i, + chip->pdata->config_data->cell_char_tbl[i]); } static inline void max17042_read_model_data(struct max17042_chip *chip, - u8 addr, u16 *data, int size) + u8 addr, u32 *data, int size) { - struct i2c_client *client = chip->client; + struct regmap *map = chip->regmap; int i; for (i = 0; i < size; i++) - data[i] = max17042_read_reg(client, addr + i); + regmap_read(map, addr + i, &data[i]); } static inline int max17042_model_data_compare(struct max17042_chip *chip, @@ -350,7 +324,7 @@ static int max17042_init_model(struct max17042_chip *chip) { int ret; int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl); - u16 *temp_data; + u32 *temp_data; temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL); if (!temp_data) @@ -365,7 +339,7 @@ static int max17042_init_model(struct max17042_chip *chip) ret = max17042_model_data_compare( chip, chip->pdata->config_data->cell_char_tbl, - temp_data, + (u16 *)temp_data, table_size); max10742_lock_model(chip); @@ -378,7 +352,7 @@ static int max17042_verify_model_lock(struct max17042_chip *chip) { int i; int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl); - u16 *temp_data; + u32 *temp_data; int ret = 0; temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL); @@ -398,40 +372,38 @@ static int max17042_verify_model_lock(struct max17042_chip *chip) static void max17042_write_config_regs(struct max17042_chip *chip) { struct max17042_config_data *config = chip->pdata->config_data; + struct regmap *map = chip->regmap; - max17042_write_reg(chip->client, MAX17042_CONFIG, config->config); - max17042_write_reg(chip->client, MAX17042_LearnCFG, config->learn_cfg); - max17042_write_reg(chip->client, MAX17042_FilterCFG, + regmap_write(map, MAX17042_CONFIG, config->config); + regmap_write(map, MAX17042_LearnCFG, config->learn_cfg); + regmap_write(map, MAX17042_FilterCFG, config->filter_cfg); - max17042_write_reg(chip->client, MAX17042_RelaxCFG, config->relax_cfg); + regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg); if (chip->chip_type == MAX17047) - max17042_write_reg(chip->client, MAX17047_FullSOCThr, + regmap_write(map, MAX17047_FullSOCThr, config->full_soc_thresh); } static void max17042_write_custom_regs(struct max17042_chip *chip) { struct max17042_config_data *config = chip->pdata->config_data; + struct regmap *map = chip->regmap; - max17042_write_verify_reg(chip->client, MAX17042_RCOMP0, - config->rcomp0); - max17042_write_verify_reg(chip->client, MAX17042_TempCo, - config->tcompc0); - max17042_write_verify_reg(chip->client, MAX17042_ICHGTerm, - config->ichgt_term); + max17042_write_verify_reg(map, MAX17042_RCOMP0, config->rcomp0); + max17042_write_verify_reg(map, MAX17042_TempCo, config->tcompc0); + max17042_write_verify_reg(map, MAX17042_ICHGTerm, config->ichgt_term); if (chip->chip_type == MAX17042) { - max17042_write_reg(chip->client, MAX17042_EmptyTempCo, - config->empty_tempco); - max17042_write_verify_reg(chip->client, MAX17042_K_empty0, + regmap_write(map, MAX17042_EmptyTempCo, config->empty_tempco); + max17042_write_verify_reg(map, MAX17042_K_empty0, config->kempty0); } else { - max17042_write_verify_reg(chip->client, MAX17047_QRTbl00, + max17042_write_verify_reg(map, MAX17047_QRTbl00, config->qrtbl00); - max17042_write_verify_reg(chip->client, MAX17047_QRTbl10, + max17042_write_verify_reg(map, MAX17047_QRTbl10, config->qrtbl10); - max17042_write_verify_reg(chip->client, MAX17047_QRTbl20, + max17042_write_verify_reg(map, MAX17047_QRTbl20, config->qrtbl20); - max17042_write_verify_reg(chip->client, MAX17047_QRTbl30, + max17042_write_verify_reg(map, MAX17047_QRTbl30, config->qrtbl30); } } @@ -439,58 +411,60 @@ static void max17042_write_custom_regs(struct max17042_chip *chip) static void max17042_update_capacity_regs(struct max17042_chip *chip) { struct max17042_config_data *config = chip->pdata->config_data; + struct regmap *map = chip->regmap; - max17042_write_verify_reg(chip->client, MAX17042_FullCAP, + max17042_write_verify_reg(map, MAX17042_FullCAP, config->fullcap); - max17042_write_reg(chip->client, MAX17042_DesignCap, - config->design_cap); - max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom, + regmap_write(map, MAX17042_DesignCap, config->design_cap); + max17042_write_verify_reg(map, MAX17042_FullCAPNom, config->fullcapnom); } static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip) { - u16 vfSoc; + unsigned int vfSoc; + struct regmap *map = chip->regmap; - vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC); - max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK); - max17042_write_verify_reg(chip->client, MAX17042_VFSOC0, vfSoc); - max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_LOCK); + regmap_read(map, MAX17042_VFSOC, &vfSoc); + regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK); + max17042_write_verify_reg(map, MAX17042_VFSOC0, vfSoc); + regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_LOCK); } static void max17042_load_new_capacity_params(struct max17042_chip *chip) { - u16 full_cap0, rep_cap, dq_acc, vfSoc; + u32 full_cap0, rep_cap, dq_acc, vfSoc; u32 rem_cap; struct max17042_config_data *config = chip->pdata->config_data; + struct regmap *map = chip->regmap; - full_cap0 = max17042_read_reg(chip->client, MAX17042_FullCAP0); - vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC); + regmap_read(map, MAX17042_FullCAP0, &full_cap0); + regmap_read(map, MAX17042_VFSOC, &vfSoc); /* fg_vfSoc needs to shifted by 8 bits to get the * perc in 1% accuracy, to get the right rem_cap multiply * full_cap0, fg_vfSoc and devide by 100 */ rem_cap = ((vfSoc >> 8) * full_cap0) / 100; - max17042_write_verify_reg(chip->client, MAX17042_RemCap, (u16)rem_cap); + max17042_write_verify_reg(map, MAX17042_RemCap, rem_cap); - rep_cap = (u16)rem_cap; - max17042_write_verify_reg(chip->client, MAX17042_RepCap, rep_cap); + rep_cap = rem_cap; + max17042_write_verify_reg(map, MAX17042_RepCap, rep_cap); /* Write dQ_acc to 200% of Capacity and dP_acc to 200% */ dq_acc = config->fullcap / dQ_ACC_DIV; - max17042_write_verify_reg(chip->client, MAX17042_dQacc, dq_acc); - max17042_write_verify_reg(chip->client, MAX17042_dPacc, dP_ACC_200); + max17042_write_verify_reg(map, MAX17042_dQacc, dq_acc); + max17042_write_verify_reg(map, MAX17042_dPacc, dP_ACC_200); - max17042_write_verify_reg(chip->client, MAX17042_FullCAP, + max17042_write_verify_reg(map, MAX17042_FullCAP, config->fullcap); - max17042_write_reg(chip->client, MAX17042_DesignCap, + regmap_write(map, MAX17042_DesignCap, config->design_cap); - max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom, + max17042_write_verify_reg(map, MAX17042_FullCAPNom, config->fullcapnom); /* Update SOC register with new SOC */ - max17042_write_reg(chip->client, MAX17042_RepSOC, vfSoc); + regmap_write(map, MAX17042_RepSOC, vfSoc); } /* @@ -500,59 +474,60 @@ static void max17042_load_new_capacity_params(struct max17042_chip *chip) */ static inline void max17042_override_por_values(struct max17042_chip *chip) { - struct i2c_client *client = chip->client; + struct regmap *map = chip->regmap; struct max17042_config_data *config = chip->pdata->config_data; - max17042_override_por(client, MAX17042_TGAIN, config->tgain); - max17042_override_por(client, MAx17042_TOFF, config->toff); - max17042_override_por(client, MAX17042_CGAIN, config->cgain); - max17042_override_por(client, MAX17042_COFF, config->coff); - - max17042_override_por(client, MAX17042_VALRT_Th, config->valrt_thresh); - max17042_override_por(client, MAX17042_TALRT_Th, config->talrt_thresh); - max17042_override_por(client, MAX17042_SALRT_Th, - config->soc_alrt_thresh); - max17042_override_por(client, MAX17042_CONFIG, config->config); - max17042_override_por(client, MAX17042_SHDNTIMER, config->shdntimer); - - max17042_override_por(client, MAX17042_DesignCap, config->design_cap); - max17042_override_por(client, MAX17042_ICHGTerm, config->ichgt_term); - - max17042_override_por(client, MAX17042_AtRate, config->at_rate); - max17042_override_por(client, MAX17042_LearnCFG, config->learn_cfg); - max17042_override_por(client, MAX17042_FilterCFG, config->filter_cfg); - max17042_override_por(client, MAX17042_RelaxCFG, config->relax_cfg); - max17042_override_por(client, MAX17042_MiscCFG, config->misc_cfg); - max17042_override_por(client, MAX17042_MaskSOC, config->masksoc); - - max17042_override_por(client, MAX17042_FullCAP, config->fullcap); - max17042_override_por(client, MAX17042_FullCAPNom, config->fullcapnom); + max17042_override_por(map, MAX17042_TGAIN, config->tgain); + max17042_override_por(map, MAx17042_TOFF, config->toff); + max17042_override_por(map, MAX17042_CGAIN, config->cgain); + max17042_override_por(map, MAX17042_COFF, config->coff); + + max17042_override_por(map, MAX17042_VALRT_Th, config->valrt_thresh); + max17042_override_por(map, MAX17042_TALRT_Th, config->talrt_thresh); + max17042_override_por(map, MAX17042_SALRT_Th, + config->soc_alrt_thresh); + max17042_override_por(map, MAX17042_CONFIG, config->config); + max17042_override_por(map, MAX17042_SHDNTIMER, config->shdntimer); + + max17042_override_por(map, MAX17042_DesignCap, config->design_cap); + max17042_override_por(map, MAX17042_ICHGTerm, config->ichgt_term); + + max17042_override_por(map, MAX17042_AtRate, config->at_rate); + max17042_override_por(map, MAX17042_LearnCFG, config->learn_cfg); + max17042_override_por(map, MAX17042_FilterCFG, config->filter_cfg); + max17042_override_por(map, MAX17042_RelaxCFG, config->relax_cfg); + max17042_override_por(map, MAX17042_MiscCFG, config->misc_cfg); + max17042_override_por(map, MAX17042_MaskSOC, config->masksoc); + + max17042_override_por(map, MAX17042_FullCAP, config->fullcap); + max17042_override_por(map, MAX17042_FullCAPNom, config->fullcapnom); if (chip->chip_type == MAX17042) - max17042_override_por(client, MAX17042_SOC_empty, + max17042_override_por(map, MAX17042_SOC_empty, config->socempty); - max17042_override_por(client, MAX17042_LAvg_empty, config->lavg_empty); - max17042_override_por(client, MAX17042_dQacc, config->dqacc); - max17042_override_por(client, MAX17042_dPacc, config->dpacc); + max17042_override_por(map, MAX17042_LAvg_empty, config->lavg_empty); + max17042_override_por(map, MAX17042_dQacc, config->dqacc); + max17042_override_por(map, MAX17042_dPacc, config->dpacc); if (chip->chip_type == MAX17042) - max17042_override_por(client, MAX17042_V_empty, config->vempty); + max17042_override_por(map, MAX17042_V_empty, config->vempty); else - max17042_override_por(client, MAX17047_V_empty, config->vempty); - max17042_override_por(client, MAX17042_TempNom, config->temp_nom); - max17042_override_por(client, MAX17042_TempLim, config->temp_lim); - max17042_override_por(client, MAX17042_FCTC, config->fctc); - max17042_override_por(client, MAX17042_RCOMP0, config->rcomp0); - max17042_override_por(client, MAX17042_TempCo, config->tcompc0); + max17042_override_por(map, MAX17047_V_empty, config->vempty); + max17042_override_por(map, MAX17042_TempNom, config->temp_nom); + max17042_override_por(map, MAX17042_TempLim, config->temp_lim); + max17042_override_por(map, MAX17042_FCTC, config->fctc); + max17042_override_por(map, MAX17042_RCOMP0, config->rcomp0); + max17042_override_por(map, MAX17042_TempCo, config->tcompc0); if (chip->chip_type) { - max17042_override_por(client, MAX17042_EmptyTempCo, - config->empty_tempco); - max17042_override_por(client, MAX17042_K_empty0, - config->kempty0); + max17042_override_por(map, MAX17042_EmptyTempCo, + config->empty_tempco); + max17042_override_por(map, MAX17042_K_empty0, + config->kempty0); } } static int max17042_init_chip(struct max17042_chip *chip) { + struct regmap *map = chip->regmap; int ret; int val; @@ -597,31 +572,32 @@ static int max17042_init_chip(struct max17042_chip *chip) max17042_load_new_capacity_params(chip); /* Init complete, Clear the POR bit */ - val = max17042_read_reg(chip->client, MAX17042_STATUS); - max17042_write_reg(chip->client, MAX17042_STATUS, - val & (~STATUS_POR_BIT)); + regmap_read(map, MAX17042_STATUS, &val); + regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT)); return 0; } static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off) { - u16 soc, soc_tr; + struct regmap *map = chip->regmap; + u32 soc, soc_tr; /* program interrupt thesholds such that we should * get interrupt for every 'off' perc change in the soc */ - soc = max17042_read_reg(chip->client, MAX17042_RepSOC) >> 8; + regmap_read(map, MAX17042_RepSOC, &soc); + soc >>= 8; soc_tr = (soc + off) << 8; soc_tr |= (soc - off); - max17042_write_reg(chip->client, MAX17042_SALRT_Th, soc_tr); + regmap_write(map, MAX17042_SALRT_Th, soc_tr); } static irqreturn_t max17042_thread_handler(int id, void *dev) { struct max17042_chip *chip = dev; - u16 val; + u32 val; - val = max17042_read_reg(chip->client, MAX17042_STATUS); + regmap_read(chip->regmap, MAX17042_STATUS, &val); if ((val & STATUS_INTR_SOCMIN_BIT) || (val & STATUS_INTR_SOCMAX_BIT)) { dev_info(&chip->client->dev, "SOC threshold INTR\n"); @@ -682,13 +658,20 @@ max17042_get_pdata(struct device *dev) } #endif +static struct regmap_config max17042_regmap_config = { + .reg_bits = 8, + .val_bits = 16, + .val_format_endian = REGMAP_ENDIAN_NATIVE, +}; + static int max17042_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); struct max17042_chip *chip; int ret; - int reg; + int i; + u32 val; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) return -EIO; @@ -698,6 +681,12 @@ static int max17042_probe(struct i2c_client *client, return -ENOMEM; chip->client = client; + chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config); + if (IS_ERR(chip->regmap)) { + dev_err(&client->dev, "Failed to initialize regmap\n"); + return -EINVAL; + } + chip->pdata = max17042_get_pdata(&client->dev); if (!chip->pdata) { dev_err(&client->dev, "no platform data provided\n"); @@ -706,15 +695,15 @@ static int max17042_probe(struct i2c_client *client, i2c_set_clientdata(client, chip); - ret = max17042_read_reg(chip->client, MAX17042_DevName); - if (ret == MAX17042_IC_VERSION) { + regmap_read(chip->regmap, MAX17042_DevName, &val); + if (val == MAX17042_IC_VERSION) { dev_dbg(&client->dev, "chip type max17042 detected\n"); chip->chip_type = MAX17042; - } else if (ret == MAX17047_IC_VERSION) { + } else if (val == MAX17047_IC_VERSION) { dev_dbg(&client->dev, "chip type max17047/50 detected\n"); chip->chip_type = MAX17047; } else { - dev_err(&client->dev, "device version mismatch: %x\n", ret); + dev_err(&client->dev, "device version mismatch: %x\n", val); return -EIO; } @@ -733,13 +722,15 @@ static int max17042_probe(struct i2c_client *client, chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR; if (chip->pdata->init_data) - max17042_set_reg(client, chip->pdata->init_data, - chip->pdata->num_init_data); + for (i = 0; i < chip->pdata->num_init_data; i++) + regmap_write(chip->regmap, + chip->pdata->init_data[i].addr, + chip->pdata->init_data[i].data); if (!chip->pdata->enable_current_sense) { - max17042_write_reg(client, MAX17042_CGAIN, 0x0000); - max17042_write_reg(client, MAX17042_MiscCFG, 0x0003); - max17042_write_reg(client, MAX17042_LearnCFG, 0x0007); + regmap_write(chip->regmap, MAX17042_CGAIN, 0x0000); + regmap_write(chip->regmap, MAX17042_MiscCFG, 0x0003); + regmap_write(chip->regmap, MAX17042_LearnCFG, 0x0007); } ret = power_supply_register(&client->dev, &chip->battery); @@ -754,9 +745,9 @@ static int max17042_probe(struct i2c_client *client, IRQF_TRIGGER_FALLING, chip->battery.name, chip); if (!ret) { - reg = max17042_read_reg(client, MAX17042_CONFIG); - reg |= CONFIG_ALRT_BIT_ENBL; - max17042_write_reg(client, MAX17042_CONFIG, reg); + regmap_read(chip->regmap, MAX17042_CONFIG, &val); + val |= CONFIG_ALRT_BIT_ENBL; + regmap_write(chip->regmap, MAX17042_CONFIG, val); max17042_set_soc_threshold(chip, 1); } else { client->irq = 0; @@ -765,8 +756,8 @@ static int max17042_probe(struct i2c_client *client, } } - reg = max17042_read_reg(chip->client, MAX17042_STATUS); - if (reg & STATUS_POR_BIT) { + regmap_read(chip->regmap, MAX17042_STATUS, &val); + if (val & STATUS_POR_BIT) { INIT_WORK(&chip->work, max17042_init_worker); schedule_work(&chip->work); } else { @@ -786,7 +777,7 @@ static int max17042_remove(struct i2c_client *client) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int max17042_suspend(struct device *dev) { struct max17042_chip *chip = dev_get_drvdata(dev); @@ -816,17 +807,11 @@ static int max17042_resume(struct device *dev) return 0; } - -static const struct dev_pm_ops max17042_pm_ops = { - .suspend = max17042_suspend, - .resume = max17042_resume, -}; - -#define MAX17042_PM_OPS (&max17042_pm_ops) -#else -#define MAX17042_PM_OPS NULL #endif +static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend, + max17042_resume); + #ifdef CONFIG_OF static const struct of_device_id max17042_dt_match[] = { { .compatible = "maxim,max17042" }, @@ -849,7 +834,7 @@ static struct i2c_driver max17042_i2c_driver = { .driver = { .name = "max17042", .of_match_table = of_match_ptr(max17042_dt_match), - .pm = MAX17042_PM_OPS, + .pm = &max17042_pm_ops, }, .probe = max17042_probe, .remove = max17042_remove, diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c index ffa10ed83eb1..62c15af58c9a 100644 --- a/drivers/power/pm2301_charger.c +++ b/drivers/power/pm2301_charger.c @@ -205,7 +205,7 @@ static int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val) } -int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val) +static int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val) { queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work); @@ -722,8 +722,12 @@ static int pm2xxx_charger_ac_en(struct ux500_charger *charger, dev_dbg(pm2->dev, "Enable AC: %dmV %dmA\n", vset, iset); if (!pm2->vddadc_en_ac) { - regulator_enable(pm2->regu); - pm2->vddadc_en_ac = true; + ret = regulator_enable(pm2->regu); + if (ret) + dev_warn(pm2->dev, + "Failed to enable vddadc regulator\n"); + else + pm2->vddadc_en_ac = true; } ret = pm2xxx_charging_init(pm2); @@ -953,37 +957,24 @@ static int pm2xxx_runtime_suspend(struct device *dev) { struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev); struct pm2xxx_charger *pm2; - int ret = 0; pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client); - if (!pm2) { - dev_err(pm2->dev, "no pm2xxx_charger data supplied\n"); - ret = -EINVAL; - return ret; - } - clear_lpn_pin(pm2); - return ret; + return 0; } static int pm2xxx_runtime_resume(struct device *dev) { struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev); struct pm2xxx_charger *pm2; - int ret = 0; pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client); - if (!pm2) { - dev_err(pm2->dev, "no pm2xxx_charger data supplied\n"); - ret = -EINVAL; - return ret; - } if (gpio_is_valid(pm2->lpn_pin) && gpio_get_value(pm2->lpn_pin) == 0) set_lpn_pin(pm2); - return ret; + return 0; } #endif diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c index bdd7b9b2546a..8fc9d6df87f6 100644 --- a/drivers/power/tps65090-charger.c +++ b/drivers/power/tps65090-charger.c @@ -15,15 +15,17 @@ * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/delay.h> #include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> -#include <linux/slab.h> -#include <linux/delay.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/power_supply.h> +#include <linux/slab.h> + #include <linux/mfd/tps65090.h> #define TPS65090_REG_INTR_STS 0x00 @@ -185,10 +187,6 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id) return IRQ_HANDLED; } -#if defined(CONFIG_OF) - -#include <linux/of_device.h> - static struct tps65090_platform_data * tps65090_parse_dt_charger_data(struct platform_device *pdev) { @@ -210,13 +208,6 @@ static struct tps65090_platform_data * return pdata; } -#else -static struct tps65090_platform_data * - tps65090_parse_dt_charger_data(struct platform_device *pdev) -{ - return NULL; -} -#endif static int tps65090_charger_probe(struct platform_device *pdev) { @@ -228,7 +219,7 @@ static int tps65090_charger_probe(struct platform_device *pdev) pdata = dev_get_platdata(pdev->dev.parent); - if (!pdata && pdev->dev.of_node) + if (IS_ENABLED(CONFIG_OF) && !pdata && pdev->dev.of_node) pdata = tps65090_parse_dt_charger_data(pdev); if (!pdata) { @@ -277,13 +268,13 @@ static int tps65090_charger_probe(struct platform_device *pdev) if (ret) { dev_err(cdata->dev, "Unable to register irq %d err %d\n", irq, ret); - goto fail_free_irq; + goto fail_unregister_supply; } ret = tps65090_config_charger(cdata); if (ret < 0) { dev_err(&pdev->dev, "charger config failed, err %d\n", ret); - goto fail_free_irq; + goto fail_unregister_supply; } /* Check for charger presence */ @@ -292,14 +283,14 @@ static int tps65090_charger_probe(struct platform_device *pdev) if (ret < 0) { dev_err(cdata->dev, "%s(): Error in reading reg 0x%x", __func__, TPS65090_REG_CG_STATUS1); - goto fail_free_irq; + goto fail_unregister_supply; } if (status1 != 0) { ret = tps65090_enable_charging(cdata); if (ret < 0) { dev_err(cdata->dev, "error enabling charger\n"); - goto fail_free_irq; + goto fail_unregister_supply; } cdata->ac_online = 1; power_supply_changed(&cdata->ac); @@ -307,8 +298,6 @@ static int tps65090_charger_probe(struct platform_device *pdev) return 0; -fail_free_irq: - devm_free_irq(cdata->dev, irq, cdata); fail_unregister_supply: power_supply_unregister(&cdata->ac); @@ -319,7 +308,6 @@ static int tps65090_charger_remove(struct platform_device *pdev) { struct tps65090_charger *cdata = platform_get_drvdata(pdev); - devm_free_irq(cdata->dev, cdata->irq, cdata); power_supply_unregister(&cdata->ac); return 0; diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c index d98abe911e37..f14108844e1a 100644 --- a/drivers/power/twl4030_charger.c +++ b/drivers/power/twl4030_charger.c @@ -495,10 +495,38 @@ static enum power_supply_property twl4030_charger_props[] = { POWER_SUPPLY_PROP_CURRENT_NOW, }; +#ifdef CONFIG_OF +static const struct twl4030_bci_platform_data * +twl4030_bci_parse_dt(struct device *dev) +{ + struct device_node *np = dev->of_node; + struct twl4030_bci_platform_data *pdata; + u32 num; + + if (!np) + return NULL; + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return pdata; + + if (of_property_read_u32(np, "ti,bb-uvolt", &num) == 0) + pdata->bb_uvolt = num; + if (of_property_read_u32(np, "ti,bb-uamp", &num) == 0) + pdata->bb_uamp = num; + return pdata; +} +#else +static inline const struct twl4030_bci_platform_data * +twl4030_bci_parse_dt(struct device *dev) +{ + return NULL; +} +#endif + static int __init twl4030_bci_probe(struct platform_device *pdev) { struct twl4030_bci *bci; - struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data; + const struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data; int ret; u32 reg; @@ -506,6 +534,9 @@ static int __init twl4030_bci_probe(struct platform_device *pdev) if (bci == NULL) return -ENOMEM; + if (!pdata) + pdata = twl4030_bci_parse_dt(&pdev->dev); + bci->dev = &pdev->dev; bci->irq_chg = platform_get_irq(pdev, 0); bci->irq_bci = platform_get_irq(pdev, 1); @@ -581,8 +612,11 @@ static int __init twl4030_bci_probe(struct platform_device *pdev) twl4030_charger_enable_ac(true); twl4030_charger_enable_usb(bci, true); - twl4030_charger_enable_backup(pdata->bb_uvolt, - pdata->bb_uamp); + if (pdata) + twl4030_charger_enable_backup(pdata->bb_uvolt, + pdata->bb_uamp); + else + twl4030_charger_enable_backup(0, 0); return 0; @@ -631,10 +665,17 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id twl_bci_of_match[] = { + {.compatible = "ti,twl4030-bci", }, + { } +}; +MODULE_DEVICE_TABLE(of, twl_bci_of_match); + static struct platform_driver twl4030_bci_driver = { .driver = { .name = "twl4030_bci", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(twl_bci_of_match), }, .remove = __exit_p(twl4030_bci_remove), }; diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index 75840b5cea6d..eece329d7872 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -62,6 +62,15 @@ config PWM_BFIN To compile this driver as a module, choose M here: the module will be called pwm-bfin. +config PWM_EP93XX + tristate "Cirrus Logic EP93xx PWM support" + depends on ARCH_EP93XX + help + Generic PWM framework driver for Cirrus Logic EP93xx. + + To compile this driver as a module, choose M here: the module + will be called pwm-ep93xx. + config PWM_IMX tristate "i.MX PWM support" depends on ARCH_MXC diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index 77a8c185c5b2..8b754e4dba4a 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_PWM_SYSFS) += sysfs.o obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o obj-$(CONFIG_PWM_ATMEL_TCB) += pwm-atmel-tcb.o obj-$(CONFIG_PWM_BFIN) += pwm-bfin.o +obj-$(CONFIG_PWM_EP93XX) += pwm-ep93xx.o obj-$(CONFIG_PWM_IMX) += pwm-imx.o obj-$(CONFIG_PWM_JZ4740) += pwm-jz4740.o obj-$(CONFIG_PWM_LPC32XX) += pwm-lpc32xx.o diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c index ba6ce01035e4..f3dcd02390f1 100644 --- a/drivers/pwm/pwm-atmel-tcb.c +++ b/drivers/pwm/pwm-atmel-tcb.c @@ -249,6 +249,8 @@ static int atmel_tcb_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) } } + cmr |= (tcbpwm->div & ATMEL_TC_TCCLKS); + __raw_writel(cmr, regs + ATMEL_TC_REG(group, CMR)); if (index == 0) @@ -305,7 +307,7 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, i = slowclk; rate = 32768; min = div_u64(NSEC_PER_SEC, rate); - max = min << 16; + max = min << tc->tcb_config->counter_width; /* If period is too big return ERANGE error */ if (max < period_ns) diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c new file mode 100644 index 000000000000..33aa4461e1ce --- /dev/null +++ b/drivers/pwm/pwm-ep93xx.c @@ -0,0 +1,230 @@ +/* + * PWM framework driver for Cirrus Logic EP93xx + * + * Copyright (c) 2009 Matthieu Crapet <mcrapet@gmail.com> + * Copyright (c) 2009, 2013 H Hartley Sweeten <hsweeten@visionengravers.com> + * + * EP9301/02 have only one channel: + * platform device ep93xx-pwm.1 - PWMOUT1 (EGPIO14) + * + * EP9307 has only one channel: + * platform device ep93xx-pwm.0 - PWMOUT + * + * EP9312/15 have two channels: + * platform device ep93xx-pwm.0 - PWMOUT + * platform device ep93xx-pwm.1 - PWMOUT1 (EGPIO14) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/pwm.h> + +#include <asm/div64.h> + +#include <mach/platform.h> /* for ep93xx_pwm_{acquire,release}_gpio() */ + +#define EP93XX_PWMx_TERM_COUNT 0x00 +#define EP93XX_PWMx_DUTY_CYCLE 0x04 +#define EP93XX_PWMx_ENABLE 0x08 +#define EP93XX_PWMx_INVERT 0x0c + +struct ep93xx_pwm { + void __iomem *base; + struct clk *clk; + struct pwm_chip chip; +}; + +static inline struct ep93xx_pwm *to_ep93xx_pwm(struct pwm_chip *chip) +{ + return container_of(chip, struct ep93xx_pwm, chip); +} + +static int ep93xx_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct platform_device *pdev = to_platform_device(chip->dev); + + return ep93xx_pwm_acquire_gpio(pdev); +} + +static void ep93xx_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct platform_device *pdev = to_platform_device(chip->dev); + + ep93xx_pwm_release_gpio(pdev); +} + +static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, + int duty_ns, int period_ns) +{ + struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); + void __iomem *base = ep93xx_pwm->base; + unsigned long long c; + unsigned long period_cycles; + unsigned long duty_cycles; + unsigned long term; + int ret = 0; + + /* + * The clock needs to be enabled to access the PWM registers. + * Configuration can be changed at any time. + */ + if (!test_bit(PWMF_ENABLED, &pwm->flags)) { + ret = clk_enable(ep93xx_pwm->clk); + if (ret) + return ret; + } + + c = clk_get_rate(ep93xx_pwm->clk); + c *= period_ns; + do_div(c, 1000000000); + period_cycles = c; + + c = period_cycles; + c *= duty_ns; + do_div(c, period_ns); + duty_cycles = c; + + if (period_cycles < 0x10000 && duty_cycles < 0x10000) { + term = readw(base + EP93XX_PWMx_TERM_COUNT); + + /* Order is important if PWM is running */ + if (period_cycles > term) { + writew(period_cycles, base + EP93XX_PWMx_TERM_COUNT); + writew(duty_cycles, base + EP93XX_PWMx_DUTY_CYCLE); + } else { + writew(duty_cycles, base + EP93XX_PWMx_DUTY_CYCLE); + writew(period_cycles, base + EP93XX_PWMx_TERM_COUNT); + } + } else { + ret = -EINVAL; + } + + if (!test_bit(PWMF_ENABLED, &pwm->flags)) + clk_disable(ep93xx_pwm->clk); + + return ret; +} + +static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm, + enum pwm_polarity polarity) +{ + struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); + int ret; + + /* + * The clock needs to be enabled to access the PWM registers. + * Polarity can only be changed when the PWM is disabled. + */ + ret = clk_enable(ep93xx_pwm->clk); + if (ret) + return ret; + + if (polarity == PWM_POLARITY_INVERSED) + writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_INVERT); + else + writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_INVERT); + + clk_disable(ep93xx_pwm->clk); + + return 0; +} + +static int ep93xx_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); + int ret; + + ret = clk_enable(ep93xx_pwm->clk); + if (ret) + return ret; + + writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); + + return 0; +} + +static void ep93xx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) +{ + struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); + + writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); + clk_disable(ep93xx_pwm->clk); +} + +static const struct pwm_ops ep93xx_pwm_ops = { + .request = ep93xx_pwm_request, + .free = ep93xx_pwm_free, + .config = ep93xx_pwm_config, + .set_polarity = ep93xx_pwm_polarity, + .enable = ep93xx_pwm_enable, + .disable = ep93xx_pwm_disable, + .owner = THIS_MODULE, +}; + +static int ep93xx_pwm_probe(struct platform_device *pdev) +{ + struct ep93xx_pwm *ep93xx_pwm; + struct resource *res; + int ret; + + ep93xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_pwm), GFP_KERNEL); + if (!ep93xx_pwm) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ep93xx_pwm->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ep93xx_pwm->base)) + return PTR_ERR(ep93xx_pwm->base); + + ep93xx_pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk"); + if (IS_ERR(ep93xx_pwm->clk)) + return PTR_ERR(ep93xx_pwm->clk); + + ep93xx_pwm->chip.dev = &pdev->dev; + ep93xx_pwm->chip.ops = &ep93xx_pwm_ops; + ep93xx_pwm->chip.base = -1; + ep93xx_pwm->chip.npwm = 1; + + ret = pwmchip_add(&ep93xx_pwm->chip); + if (ret < 0) + return ret; + + platform_set_drvdata(pdev, ep93xx_pwm); + return 0; +} + +static int ep93xx_pwm_remove(struct platform_device *pdev) +{ + struct ep93xx_pwm *ep93xx_pwm = platform_get_drvdata(pdev); + + return pwmchip_remove(&ep93xx_pwm->chip); +} + +static struct platform_driver ep93xx_pwm_driver = { + .driver = { + .name = "ep93xx-pwm", + }, + .probe = ep93xx_pwm_probe, + .remove = ep93xx_pwm_remove, +}; +module_platform_driver(ep93xx_pwm_driver); + +MODULE_DESCRIPTION("Cirrus Logic EP93xx PWM driver"); +MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, " + "H Hartley Sweeten <hsweeten@visionengravers.com>"); +MODULE_ALIAS("platform:ep93xx-pwm"); +MODULE_LICENSE("GPL"); diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c index 2b7c4f88b461..cc4773344874 100644 --- a/drivers/pwm/pwm-imx.c +++ b/drivers/pwm/pwm-imx.c @@ -16,6 +16,7 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/pwm.h> +#include <linux/of.h> #include <linux/of_device.h> /* i.MX1 and i.MX21 share the same PWM function block: */ @@ -296,7 +297,7 @@ static struct platform_driver imx_pwm_driver = { .driver = { .name = "imx-pwm", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(imx_pwm_dt_ids), + .of_match_table = imx_pwm_dt_ids, }, .probe = imx_pwm_probe, .remove = imx_pwm_remove, diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c index efac99e03d57..9dc0f9d42bfa 100644 --- a/drivers/pwm/pwm-lpc32xx.c +++ b/drivers/pwm/pwm-lpc32xx.c @@ -169,7 +169,7 @@ static struct platform_driver lpc32xx_pwm_driver = { .driver = { .name = "lpc32xx-pwm", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(lpc32xx_pwm_dt_ids), + .of_match_table = lpc32xx_pwm_dt_ids, }, .probe = lpc32xx_pwm_probe, .remove = lpc32xx_pwm_remove, diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c index c2c5a4fd1b96..9475bc7a6f97 100644 --- a/drivers/pwm/pwm-mxs.c +++ b/drivers/pwm/pwm-mxs.c @@ -189,7 +189,7 @@ static struct platform_driver mxs_pwm_driver = { .driver = { .name = "mxs-pwm", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(mxs_pwm_dt_ids), + .of_match_table = mxs_pwm_dt_ids, }, .probe = mxs_pwm_probe, .remove = mxs_pwm_remove, diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c index fcc8b9adde9f..b59639e0c029 100644 --- a/drivers/pwm/pwm-samsung.c +++ b/drivers/pwm/pwm-samsung.c @@ -18,6 +18,7 @@ #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/pwm.h> #include <linux/slab.h> @@ -224,8 +225,8 @@ static int pwm_samsung_request(struct pwm_chip *chip, struct pwm_device *pwm) static void pwm_samsung_free(struct pwm_chip *chip, struct pwm_device *pwm) { - pwm_set_chip_data(pwm, NULL); devm_kfree(chip->dev, pwm_get_chip_data(pwm)); + pwm_set_chip_data(pwm, NULL); } static int pwm_samsung_enable(struct pwm_chip *chip, struct pwm_device *pwm) diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c index c2e2e5852362..4e5c3d13d4f8 100644 --- a/drivers/pwm/pwm-tiecap.c +++ b/drivers/pwm/pwm-tiecap.c @@ -26,7 +26,6 @@ #include <linux/pm_runtime.h> #include <linux/pwm.h> #include <linux/of_device.h> -#include <linux/pinctrl/consumer.h> #include "pwm-tipwmss.h" @@ -208,11 +207,6 @@ static int ecap_pwm_probe(struct platform_device *pdev) struct clk *clk; struct ecap_pwm_chip *pc; u16 status; - struct pinctrl *pinctrl; - - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); - if (IS_ERR(pinctrl)) - dev_warn(&pdev->dev, "unable to select pin group\n"); pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); if (!pc) { diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index 084f55246532..a4d8f519d965 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -26,7 +26,6 @@ #include <linux/clk.h> #include <linux/pm_runtime.h> #include <linux/of_device.h> -#include <linux/pinctrl/consumer.h> #include "pwm-tipwmss.h" @@ -439,11 +438,6 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev) struct clk *clk; struct ehrpwm_pwm_chip *pc; u16 status; - struct pinctrl *pinctrl; - - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); - if (IS_ERR(pinctrl)) - dev_warn(&pdev->dev, "unable to select pin group\n"); pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); if (!pc) { diff --git a/drivers/pwm/pwm-twl-led.c b/drivers/pwm/pwm-twl-led.c index 29d1bba4804e..b964470025c5 100644 --- a/drivers/pwm/pwm-twl-led.c +++ b/drivers/pwm/pwm-twl-led.c @@ -21,6 +21,7 @@ */ #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/pwm.h> #include <linux/i2c/twl.h> diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c index eef910580eae..b99a50e626a6 100644 --- a/drivers/pwm/pwm-twl.c +++ b/drivers/pwm/pwm-twl.c @@ -18,6 +18,7 @@ */ #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/pwm.h> #include <linux/i2c/twl.h> diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c index 724706a97dc4..fd3154d86901 100644 --- a/drivers/regulator/arizona-micsupp.c +++ b/drivers/regulator/arizona-micsupp.c @@ -174,6 +174,33 @@ static const struct regulator_desc arizona_micsupp = { .owner = THIS_MODULE, }; +static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = { + REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000), + REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000), +}; + +static const struct regulator_desc arizona_micsupp_ext = { + .name = "MICVDD", + .supply_name = "CPVDD", + .type = REGULATOR_VOLTAGE, + .n_voltages = 40, + .ops = &arizona_micsupp_ops, + + .vsel_reg = ARIZONA_LDO2_CONTROL_1, + .vsel_mask = ARIZONA_LDO2_VSEL_MASK, + .enable_reg = ARIZONA_MIC_CHARGE_PUMP_1, + .enable_mask = ARIZONA_CPMIC_ENA, + .bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1, + .bypass_mask = ARIZONA_CPMIC_BYPASS, + + .linear_ranges = arizona_micsupp_ext_ranges, + .n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges), + + .enable_time = 3000, + + .owner = THIS_MODULE, +}; + static const struct regulator_init_data arizona_micsupp_default = { .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS | @@ -186,9 +213,22 @@ static const struct regulator_init_data arizona_micsupp_default = { .num_consumer_supplies = 1, }; +static const struct regulator_init_data arizona_micsupp_ext_default = { + .constraints = { + .valid_ops_mask = REGULATOR_CHANGE_STATUS | + REGULATOR_CHANGE_VOLTAGE | + REGULATOR_CHANGE_BYPASS, + .min_uV = 900000, + .max_uV = 3300000, + }, + + .num_consumer_supplies = 1, +}; + static int arizona_micsupp_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); + const struct regulator_desc *desc; struct regulator_config config = { }; struct arizona_micsupp *micsupp; int ret; @@ -207,7 +247,17 @@ static int arizona_micsupp_probe(struct platform_device *pdev) * default init_data for it. This will be overridden with * platform data if provided. */ - micsupp->init_data = arizona_micsupp_default; + switch (arizona->type) { + case WM5110: + desc = &arizona_micsupp_ext; + micsupp->init_data = arizona_micsupp_ext_default; + break; + default: + desc = &arizona_micsupp; + micsupp->init_data = arizona_micsupp_default; + break; + } + micsupp->init_data.consumer_supplies = &micsupp->supply; micsupp->supply.supply = "MICVDD"; micsupp->supply.dev_name = dev_name(arizona->dev); @@ -226,7 +276,7 @@ static int arizona_micsupp_probe(struct platform_device *pdev) ARIZONA_CPMIC_BYPASS, 0); micsupp->regulator = devm_regulator_register(&pdev->dev, - &arizona_micsupp, + desc, &config); if (IS_ERR(micsupp->regulator)) { ret = PTR_ERR(micsupp->regulator); diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6382f0af353b..3fe13130baec 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2184,6 +2184,9 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector) struct regulator_ops *ops = rdev->desc->ops; int ret; + if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector) + return rdev->desc->fixed_uV; + if (!ops->list_voltage || selector >= rdev->desc->n_voltages) return -EINVAL; diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 04406a918c04..234960dc9607 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -139,6 +139,7 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np) struct property *prop; const char *regtype; int proplen, gpio, i; + int ret; config = devm_kzalloc(dev, sizeof(struct gpio_regulator_config), @@ -202,7 +203,11 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np) } config->nr_states = i; - of_property_read_string(np, "regulator-type", ®type); + ret = of_property_read_string(np, "regulator-type", ®type); + if (ret < 0) { + dev_err(dev, "Missing 'regulator-type' property\n"); + return ERR_PTR(-EINVAL); + } if (!strncmp("voltage", regtype, 7)) config->type = REGULATOR_VOLTAGE; diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index ba67b2c4e2e7..032df3799efb 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip) if (ret) return ret; - if (value & 0x0f) { - dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); - return -ENODEV; + switch (value & 0x0f) { + /* Freescale misprogrammed 1-3% of parts prior to week 8 of 2013 as ID=8 */ + case 0x8: + dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8"); + case 0x0: + break; + default: + dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); + return -ENODEV; } ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 15f166a470a7..007730222116 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -626,7 +626,7 @@ comment "Platform RTC drivers" config RTC_DRV_CMOS tristate "PC-style 'CMOS'" - depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64 + depends on X86 || ARM || M32R || ATARI || PPC || MIPS || SPARC64 default y if X86 help Say "yes" here to get direct support for the real time clock @@ -643,6 +643,14 @@ config RTC_DRV_CMOS This driver can also be built as a module. If so, the module will be called rtc-cmos. +config RTC_DRV_ALPHA + bool "Alpha PC-style CMOS" + depends on ALPHA + default y + help + Direct support for the real-time clock found on every Alpha + system, specifically MC146818 compatibles. If in doubt, say Y. + config RTC_DRV_VRTC tristate "Virtual RTC for Intel MID platforms" depends on X86_INTEL_MID diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index 8b2cd8a5a2ff..c0da95e95702 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -428,6 +428,14 @@ static int __exit at91_rtc_remove(struct platform_device *pdev) return 0; } +static void at91_rtc_shutdown(struct platform_device *pdev) +{ + /* Disable all interrupts */ + at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM | + AT91_RTC_SECEV | AT91_RTC_TIMEV | + AT91_RTC_CALEV); +} + #ifdef CONFIG_PM_SLEEP /* AT91RM9200 RTC Power management control */ @@ -466,6 +474,7 @@ static SIMPLE_DEV_PM_OPS(at91_rtc_pm_ops, at91_rtc_suspend, at91_rtc_resume); static struct platform_driver at91_rtc_driver = { .remove = __exit_p(at91_rtc_remove), + .shutdown = at91_rtc_shutdown, .driver = { .name = "at91_rtc", .owner = THIS_MODULE, diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 548209a9c43c..d0ab5019d885 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -118,22 +118,6 @@ static void scm_request_done(struct scm_request *scmrq) spin_unlock_irqrestore(&list_lock, flags); } -static int scm_open(struct block_device *blkdev, fmode_t mode) -{ - return scm_get_ref(); -} - -static void scm_release(struct gendisk *gendisk, fmode_t mode) -{ - scm_put_ref(); -} - -static const struct block_device_operations scm_blk_devops = { - .owner = THIS_MODULE, - .open = scm_open, - .release = scm_release, -}; - static bool scm_permit_request(struct scm_blk_dev *bdev, struct request *req) { return rq_data_dir(req) != WRITE || bdev->state != SCM_WR_PROHIBIT; @@ -256,7 +240,7 @@ static void scm_blk_request(struct request_queue *rq) atomic_inc(&bdev->queued_reqs); blk_start_request(req); - ret = scm_start_aob(scmrq->aob); + ret = eadm_start_aob(scmrq->aob); if (ret) { SCM_LOG(5, "no subchannel"); scm_request_requeue(scmrq); @@ -320,7 +304,7 @@ static void scm_blk_handle_error(struct scm_request *scmrq) } restart: - if (!scm_start_aob(scmrq->aob)) + if (!eadm_start_aob(scmrq->aob)) return; requeue: @@ -363,6 +347,10 @@ static void scm_blk_tasklet(struct scm_blk_dev *bdev) blk_run_queue(bdev->rq); } +static const struct block_device_operations scm_blk_devops = { + .owner = THIS_MODULE, +}; + int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev) { struct request_queue *rq; diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c index c0d102e3a48b..27f930cd657f 100644 --- a/drivers/s390/block/scm_blk_cluster.c +++ b/drivers/s390/block/scm_blk_cluster.c @@ -187,7 +187,7 @@ bool scm_need_cluster_request(struct scm_request *scmrq) void scm_initiate_cluster_request(struct scm_request *scmrq) { scm_prepare_cluster_request(scmrq); - if (scm_start_aob(scmrq->aob)) + if (eadm_start_aob(scmrq->aob)) scm_request_requeue(scmrq); } diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile index 17821a026c9c..b69ab17f13fa 100644 --- a/drivers/s390/char/Makefile +++ b/drivers/s390/char/Makefile @@ -3,7 +3,8 @@ # obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \ - sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o + sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o \ + sclp_early.o obj-$(CONFIG_TN3270) += raw3270.o obj-$(CONFIG_TN3270_CONSOLE) += con3270.o diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index f93cc32eb818..71e974738014 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -564,6 +564,7 @@ static void __exit fs3270_exit(void) { raw3270_unregister_notifier(&fs3270_notifier); + device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, 0)); __unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270"); } diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h index 40d1406289ed..6fbe09686d18 100644 --- a/drivers/s390/char/sclp.h +++ b/drivers/s390/char/sclp.h @@ -99,6 +99,7 @@ struct init_sccb { } __attribute__((packed)); extern u64 sclp_facilities; + #define SCLP_HAS_CHP_INFO (sclp_facilities & 0x8000000000000000ULL) #define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) #define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) @@ -179,6 +180,10 @@ void sclp_sdias_exit(void); extern int sclp_console_pages; extern int sclp_console_drop; extern unsigned long sclp_console_full; +extern u8 sclp_fac84; +extern unsigned long long sclp_rzm; +extern unsigned long long sclp_rnmax; +extern __initdata int sclp_early_read_info_sccb_valid; /* useful inlines */ diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 77df9cb00688..eaa21d542c5c 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -28,168 +28,6 @@ #include "sclp.h" -#define SCLP_CMDW_READ_SCP_INFO 0x00020001 -#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 - -struct read_info_sccb { - struct sccb_header header; /* 0-7 */ - u16 rnmax; /* 8-9 */ - u8 rnsize; /* 10 */ - u8 _reserved0[24 - 11]; /* 11-15 */ - u8 loadparm[8]; /* 24-31 */ - u8 _reserved1[48 - 32]; /* 32-47 */ - u64 facilities; /* 48-55 */ - u8 _reserved2[84 - 56]; /* 56-83 */ - u8 fac84; /* 84 */ - u8 fac85; /* 85 */ - u8 _reserved3[91 - 86]; /* 86-90 */ - u8 flags; /* 91 */ - u8 _reserved4[100 - 92]; /* 92-99 */ - u32 rnsize2; /* 100-103 */ - u64 rnmax2; /* 104-111 */ - u8 _reserved5[4096 - 112]; /* 112-4095 */ -} __attribute__((packed, aligned(PAGE_SIZE))); - -static struct init_sccb __initdata early_event_mask_sccb __aligned(PAGE_SIZE); -static struct read_info_sccb __initdata early_read_info_sccb; -static int __initdata early_read_info_sccb_valid; - -u64 sclp_facilities; -static u8 sclp_fac84; -static unsigned long long rzm; -static unsigned long long rnmax; - -static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb) -{ - int rc; - - __ctl_set_bit(0, 9); - rc = sclp_service_call(cmd, sccb); - if (rc) - goto out; - __load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA | - PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT); - local_irq_disable(); -out: - /* Contents of the sccb might have changed. */ - barrier(); - __ctl_clear_bit(0, 9); - return rc; -} - -static void __init sclp_read_info_early(void) -{ - int rc; - int i; - struct read_info_sccb *sccb; - sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED, - SCLP_CMDW_READ_SCP_INFO}; - - sccb = &early_read_info_sccb; - for (i = 0; i < ARRAY_SIZE(commands); i++) { - do { - memset(sccb, 0, sizeof(*sccb)); - sccb->header.length = sizeof(*sccb); - sccb->header.function_code = 0x80; - sccb->header.control_mask[2] = 0x80; - rc = sclp_cmd_sync_early(commands[i], sccb); - } while (rc == -EBUSY); - - if (rc) - break; - if (sccb->header.response_code == 0x10) { - early_read_info_sccb_valid = 1; - break; - } - if (sccb->header.response_code != 0x1f0) - break; - } -} - -static void __init sclp_event_mask_early(void) -{ - struct init_sccb *sccb = &early_event_mask_sccb; - int rc; - - do { - memset(sccb, 0, sizeof(*sccb)); - sccb->header.length = sizeof(*sccb); - sccb->mask_length = sizeof(sccb_mask_t); - rc = sclp_cmd_sync_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb); - } while (rc == -EBUSY); -} - -void __init sclp_facilities_detect(void) -{ - struct read_info_sccb *sccb; - - sclp_read_info_early(); - if (!early_read_info_sccb_valid) - return; - - sccb = &early_read_info_sccb; - sclp_facilities = sccb->facilities; - sclp_fac84 = sccb->fac84; - if (sccb->fac85 & 0x02) - S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP; - rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2; - rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2; - rzm <<= 20; - - sclp_event_mask_early(); -} - -bool __init sclp_has_linemode(void) -{ - struct init_sccb *sccb = &early_event_mask_sccb; - - if (sccb->header.response_code != 0x20) - return 0; - if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK))) - return 0; - if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK))) - return 0; - return 1; -} - -bool __init sclp_has_vt220(void) -{ - struct init_sccb *sccb = &early_event_mask_sccb; - - if (sccb->header.response_code != 0x20) - return 0; - if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK) - return 1; - return 0; -} - -unsigned long long sclp_get_rnmax(void) -{ - return rnmax; -} - -unsigned long long sclp_get_rzm(void) -{ - return rzm; -} - -/* - * This function will be called after sclp_facilities_detect(), which gets - * called from early.c code. Therefore the sccb should have valid contents. - */ -void __init sclp_get_ipl_info(struct sclp_ipl_info *info) -{ - struct read_info_sccb *sccb; - - if (!early_read_info_sccb_valid) - return; - sccb = &early_read_info_sccb; - info->is_valid = 1; - if (sccb->flags & 0x2) - info->has_dump = 1; - memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN); -} - static void sclp_sync_callback(struct sclp_req *req, void *data) { struct completion *completion = data; @@ -356,14 +194,14 @@ struct assign_storage_sccb { int arch_get_memory_phys_device(unsigned long start_pfn) { - if (!rzm) + if (!sclp_rzm) return 0; - return PFN_PHYS(start_pfn) >> ilog2(rzm); + return PFN_PHYS(start_pfn) >> ilog2(sclp_rzm); } static unsigned long long rn2addr(u16 rn) { - return (unsigned long long) (rn - 1) * rzm; + return (unsigned long long) (rn - 1) * sclp_rzm; } static int do_assign_storage(sclp_cmdw_t cmd, u16 rn) @@ -404,7 +242,7 @@ static int sclp_assign_storage(u16 rn) if (rc) return rc; start = rn2addr(rn); - storage_key_init_range(start, start + rzm); + storage_key_init_range(start, start + sclp_rzm); return 0; } @@ -462,7 +300,7 @@ static int sclp_mem_change_state(unsigned long start, unsigned long size, istart = rn2addr(incr->rn); if (start + size - 1 < istart) break; - if (start > istart + rzm - 1) + if (start > istart + sclp_rzm - 1) continue; if (online) rc |= sclp_assign_storage(incr->rn); @@ -526,7 +364,7 @@ static void __init add_memory_merged(u16 rn) if (!first_rn) goto skip_add; start = rn2addr(first_rn); - size = (unsigned long long ) num * rzm; + size = (unsigned long long) num * sclp_rzm; if (start >= VMEM_MAX_PHYS) goto skip_add; if (start + size > VMEM_MAX_PHYS) @@ -574,7 +412,7 @@ static void __init insert_increment(u16 rn, int standby, int assigned) } if (!assigned) new_incr->rn = last_rn + 1; - if (new_incr->rn > rnmax) { + if (new_incr->rn > sclp_rnmax) { kfree(new_incr); return; } @@ -617,7 +455,7 @@ static int __init sclp_detect_standby_memory(void) if (OLDMEM_BASE) /* No standby memory in kdump mode */ return 0; - if (!early_read_info_sccb_valid) + if (!sclp_early_read_info_sccb_valid) return 0; if ((sclp_facilities & 0xe00000000000ULL) != 0xe00000000000ULL) return 0; @@ -661,7 +499,7 @@ static int __init sclp_detect_standby_memory(void) } if (rc || list_empty(&sclp_mem_list)) goto out; - for (i = 1; i <= rnmax - assigned; i++) + for (i = 1; i <= sclp_rnmax - assigned; i++) insert_increment(0, 1, 0); rc = register_memory_notifier(&sclp_mem_nb); if (rc) diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c new file mode 100644 index 000000000000..f7aa080e9b28 --- /dev/null +++ b/drivers/s390/char/sclp_early.c @@ -0,0 +1,264 @@ +/* + * SCLP early driver + * + * Copyright IBM Corp. 2013 + */ + +#define KMSG_COMPONENT "sclp_early" +#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt + +#include <asm/ctl_reg.h> +#include <asm/sclp.h> +#include <asm/ipl.h> +#include "sclp_sdias.h" +#include "sclp.h" + +#define SCLP_CMDW_READ_SCP_INFO 0x00020001 +#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001 + +struct read_info_sccb { + struct sccb_header header; /* 0-7 */ + u16 rnmax; /* 8-9 */ + u8 rnsize; /* 10 */ + u8 _reserved0[24 - 11]; /* 11-15 */ + u8 loadparm[8]; /* 24-31 */ + u8 _reserved1[48 - 32]; /* 32-47 */ + u64 facilities; /* 48-55 */ + u8 _reserved2[84 - 56]; /* 56-83 */ + u8 fac84; /* 84 */ + u8 fac85; /* 85 */ + u8 _reserved3[91 - 86]; /* 86-90 */ + u8 flags; /* 91 */ + u8 _reserved4[100 - 92]; /* 92-99 */ + u32 rnsize2; /* 100-103 */ + u64 rnmax2; /* 104-111 */ + u8 _reserved5[4096 - 112]; /* 112-4095 */ +} __packed __aligned(PAGE_SIZE); + +static __initdata struct init_sccb early_event_mask_sccb __aligned(PAGE_SIZE); +static __initdata struct read_info_sccb early_read_info_sccb; +static __initdata char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE); +static unsigned long sclp_hsa_size; + +__initdata int sclp_early_read_info_sccb_valid; +u64 sclp_facilities; +u8 sclp_fac84; +unsigned long long sclp_rzm; +unsigned long long sclp_rnmax; + +static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb) +{ + int rc; + + __ctl_set_bit(0, 9); + rc = sclp_service_call(cmd, sccb); + if (rc) + goto out; + __load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA | + PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT); + local_irq_disable(); +out: + /* Contents of the sccb might have changed. */ + barrier(); + __ctl_clear_bit(0, 9); + return rc; +} + +static void __init sclp_read_info_early(void) +{ + int rc; + int i; + struct read_info_sccb *sccb; + sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED, + SCLP_CMDW_READ_SCP_INFO}; + + sccb = &early_read_info_sccb; + for (i = 0; i < ARRAY_SIZE(commands); i++) { + do { + memset(sccb, 0, sizeof(*sccb)); + sccb->header.length = sizeof(*sccb); + sccb->header.function_code = 0x80; + sccb->header.control_mask[2] = 0x80; + rc = sclp_cmd_sync_early(commands[i], sccb); + } while (rc == -EBUSY); + + if (rc) + break; + if (sccb->header.response_code == 0x10) { + sclp_early_read_info_sccb_valid = 1; + break; + } + if (sccb->header.response_code != 0x1f0) + break; + } +} + +static void __init sclp_facilities_detect(void) +{ + struct read_info_sccb *sccb; + + sclp_read_info_early(); + if (!sclp_early_read_info_sccb_valid) + return; + + sccb = &early_read_info_sccb; + sclp_facilities = sccb->facilities; + sclp_fac84 = sccb->fac84; + if (sccb->fac85 & 0x02) + S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP; + sclp_rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2; + sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2; + sclp_rzm <<= 20; +} + +bool __init sclp_has_linemode(void) +{ + struct init_sccb *sccb = &early_event_mask_sccb; + + if (sccb->header.response_code != 0x20) + return 0; + if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK))) + return 0; + if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK))) + return 0; + return 1; +} + +bool __init sclp_has_vt220(void) +{ + struct init_sccb *sccb = &early_event_mask_sccb; + + if (sccb->header.response_code != 0x20) + return 0; + if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK) + return 1; + return 0; +} + +unsigned long long sclp_get_rnmax(void) +{ + return sclp_rnmax; +} + +unsigned long long sclp_get_rzm(void) +{ + return sclp_rzm; +} + +/* + * This function will be called after sclp_facilities_detect(), which gets + * called from early.c code. Therefore the sccb should have valid contents. + */ +void __init sclp_get_ipl_info(struct sclp_ipl_info *info) +{ + struct read_info_sccb *sccb; + + if (!sclp_early_read_info_sccb_valid) + return; + sccb = &early_read_info_sccb; + info->is_valid = 1; + if (sccb->flags & 0x2) + info->has_dump = 1; + memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN); +} + +static int __init sclp_cmd_early(sclp_cmdw_t cmd, void *sccb) +{ + int rc; + + do { + rc = sclp_cmd_sync_early(cmd, sccb); + } while (rc == -EBUSY); + + if (rc) + return -EIO; + if (((struct sccb_header *) sccb)->response_code != 0x0020) + return -EIO; + return 0; +} + +static void __init sccb_init_eq_size(struct sdias_sccb *sccb) +{ + memset(sccb, 0, sizeof(*sccb)); + + sccb->hdr.length = sizeof(*sccb); + sccb->evbuf.hdr.length = sizeof(struct sdias_evbuf); + sccb->evbuf.hdr.type = EVTYP_SDIAS; + sccb->evbuf.event_qual = SDIAS_EQ_SIZE; + sccb->evbuf.data_id = SDIAS_DI_FCP_DUMP; + sccb->evbuf.event_id = 4712; + sccb->evbuf.dbs = 1; +} + +static int __init sclp_set_event_mask(unsigned long receive_mask, + unsigned long send_mask) +{ + struct init_sccb *sccb = (void *) &sccb_early; + + memset(sccb, 0, sizeof(*sccb)); + sccb->header.length = sizeof(*sccb); + sccb->mask_length = sizeof(sccb_mask_t); + sccb->receive_mask = receive_mask; + sccb->send_mask = send_mask; + return sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb); +} + +static long __init sclp_hsa_size_init(void) +{ + struct sdias_sccb *sccb = (void *) &sccb_early; + + sccb_init_eq_size(sccb); + if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb)) + return -EIO; + if (sccb->evbuf.blk_cnt != 0) + return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE; + return 0; +} + +static long __init sclp_hsa_copy_wait(void) +{ + struct sccb_header *sccb = (void *) &sccb_early; + + memset(sccb, 0, PAGE_SIZE); + sccb->length = PAGE_SIZE; + if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb)) + return -EIO; + return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE; +} + +unsigned long sclp_get_hsa_size(void) +{ + return sclp_hsa_size; +} + +static void __init sclp_hsa_size_detect(void) +{ + long size; + + /* First try synchronous interface (LPAR) */ + if (sclp_set_event_mask(0, 0x40000010)) + return; + size = sclp_hsa_size_init(); + if (size < 0) + return; + if (size != 0) + goto out; + /* Then try asynchronous interface (z/VM) */ + if (sclp_set_event_mask(0x00000010, 0x40000010)) + return; + size = sclp_hsa_size_init(); + if (size < 0) + return; + size = sclp_hsa_copy_wait(); + if (size < 0) + return; +out: + sclp_hsa_size = size; +} + +void __init sclp_early_detect(void) +{ + sclp_facilities_detect(); + sclp_hsa_size_detect(); + sclp_set_event_mask(0, 0); +} diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c index b1032931a1c4..561a0414b352 100644 --- a/drivers/s390/char/sclp_sdias.c +++ b/drivers/s390/char/sclp_sdias.c @@ -1,7 +1,7 @@ /* - * Sclp "store data in absolut storage" + * SCLP "store data in absolute storage" * - * Copyright IBM Corp. 2003, 2007 + * Copyright IBM Corp. 2003, 2013 * Author(s): Michael Holzheu */ @@ -14,6 +14,7 @@ #include <asm/debug.h> #include <asm/ipl.h> +#include "sclp_sdias.h" #include "sclp.h" #include "sclp_rw.h" @@ -22,46 +23,12 @@ #define SDIAS_RETRIES 300 #define SDIAS_SLEEP_TICKS 50 -#define EQ_STORE_DATA 0x0 -#define EQ_SIZE 0x1 -#define DI_FCP_DUMP 0x0 -#define ASA_SIZE_32 0x0 -#define ASA_SIZE_64 0x1 -#define EVSTATE_ALL_STORED 0x0 -#define EVSTATE_NO_DATA 0x3 -#define EVSTATE_PART_STORED 0x10 - static struct debug_info *sdias_dbf; static struct sclp_register sclp_sdias_register = { .send_mask = EVTYP_SDIAS_MASK, }; -struct sdias_evbuf { - struct evbuf_header hdr; - u8 event_qual; - u8 data_id; - u64 reserved2; - u32 event_id; - u16 reserved3; - u8 asa_size; - u8 event_status; - u32 reserved4; - u32 blk_cnt; - u64 asa; - u32 reserved5; - u32 fbn; - u32 reserved6; - u32 lbn; - u16 reserved7; - u16 dbs; -} __attribute__((packed)); - -struct sdias_sccb { - struct sccb_header hdr; - struct sdias_evbuf evbuf; -} __attribute__((packed)); - static struct sdias_sccb sccb __attribute__((aligned(4096))); static struct sdias_evbuf sdias_evbuf; @@ -148,8 +115,8 @@ int sclp_sdias_blk_count(void) sccb.hdr.length = sizeof(sccb); sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf); sccb.evbuf.hdr.type = EVTYP_SDIAS; - sccb.evbuf.event_qual = EQ_SIZE; - sccb.evbuf.data_id = DI_FCP_DUMP; + sccb.evbuf.event_qual = SDIAS_EQ_SIZE; + sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP; sccb.evbuf.event_id = 4712; sccb.evbuf.dbs = 1; @@ -208,13 +175,13 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks) sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf); sccb.evbuf.hdr.type = EVTYP_SDIAS; sccb.evbuf.hdr.flags = 0; - sccb.evbuf.event_qual = EQ_STORE_DATA; - sccb.evbuf.data_id = DI_FCP_DUMP; + sccb.evbuf.event_qual = SDIAS_EQ_STORE_DATA; + sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP; sccb.evbuf.event_id = 4712; #ifdef CONFIG_64BIT - sccb.evbuf.asa_size = ASA_SIZE_64; + sccb.evbuf.asa_size = SDIAS_ASA_SIZE_64; #else - sccb.evbuf.asa_size = ASA_SIZE_32; + sccb.evbuf.asa_size = SDIAS_ASA_SIZE_32; #endif sccb.evbuf.event_status = 0; sccb.evbuf.blk_cnt = nr_blks; @@ -240,20 +207,19 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks) } switch (sdias_evbuf.event_status) { - case EVSTATE_ALL_STORED: - TRACE("all stored\n"); - break; - case EVSTATE_PART_STORED: - TRACE("part stored: %i\n", sdias_evbuf.blk_cnt); - break; - case EVSTATE_NO_DATA: - TRACE("no data\n"); - /* fall through */ - default: - pr_err("Error from SCLP while copying hsa. " - "Event status = %x\n", - sdias_evbuf.event_status); - rc = -EIO; + case SDIAS_EVSTATE_ALL_STORED: + TRACE("all stored\n"); + break; + case SDIAS_EVSTATE_PART_STORED: + TRACE("part stored: %i\n", sdias_evbuf.blk_cnt); + break; + case SDIAS_EVSTATE_NO_DATA: + TRACE("no data\n"); + /* fall through */ + default: + pr_err("Error from SCLP while copying hsa. Event status = %x\n", + sdias_evbuf.event_status); + rc = -EIO; } out: mutex_unlock(&sdias_mutex); diff --git a/drivers/s390/char/sclp_sdias.h b/drivers/s390/char/sclp_sdias.h new file mode 100644 index 000000000000..f2431c414150 --- /dev/null +++ b/drivers/s390/char/sclp_sdias.h @@ -0,0 +1,46 @@ +/* + * SCLP "store data in absolute storage" + * + * Copyright IBM Corp. 2003, 2013 + */ + +#ifndef SCLP_SDIAS_H +#define SCLP_SDIAS_H + +#include "sclp.h" + +#define SDIAS_EQ_STORE_DATA 0x0 +#define SDIAS_EQ_SIZE 0x1 +#define SDIAS_DI_FCP_DUMP 0x0 +#define SDIAS_ASA_SIZE_32 0x0 +#define SDIAS_ASA_SIZE_64 0x1 +#define SDIAS_EVSTATE_ALL_STORED 0x0 +#define SDIAS_EVSTATE_NO_DATA 0x3 +#define SDIAS_EVSTATE_PART_STORED 0x10 + +struct sdias_evbuf { + struct evbuf_header hdr; + u8 event_qual; + u8 data_id; + u64 reserved2; + u32 event_id; + u16 reserved3; + u8 asa_size; + u8 event_status; + u32 reserved4; + u32 blk_cnt; + u64 asa; + u32 reserved5; + u32 fbn; + u32 reserved6; + u32 lbn; + u16 reserved7; + u16 dbs; +} __packed; + +struct sdias_sccb { + struct sccb_header hdr; + struct sdias_evbuf evbuf; +} __packed; + +#endif /* SCLP_SDIAS_H */ diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index ffb1fcf0bf5b..3d8e4d63f514 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -328,9 +328,9 @@ static ssize_t zcore_read(struct file *file, char __user *buf, size_t count, mem_offs = 0; /* Copy from HSA data */ - if (*ppos < (ZFCPDUMP_HSA_SIZE + HEADER_SIZE)) { - size = min((count - hdr_count), (size_t) (ZFCPDUMP_HSA_SIZE - - mem_start)); + if (*ppos < sclp_get_hsa_size() + HEADER_SIZE) { + size = min((count - hdr_count), + (size_t) (sclp_get_hsa_size() - mem_start)); rc = memcpy_hsa_user(buf + hdr_count, mem_start, size); if (rc) goto fail; @@ -490,7 +490,7 @@ static ssize_t zcore_hsa_read(struct file *filp, char __user *buf, static char str[18]; if (hsa_available) - snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE); + snprintf(str, sizeof(str), "%lx\n", sclp_get_hsa_size()); else snprintf(str, sizeof(str), "0\n"); return simple_read_from_buffer(buf, count, ppos, str, strlen(str)); @@ -584,17 +584,9 @@ static int __init sys_info_init(enum arch_id arch, unsigned long mem_end) static int __init check_sdias(void) { - int rc, act_hsa_size; - - rc = sclp_sdias_blk_count(); - if (rc < 0) { + if (!sclp_get_hsa_size()) { TRACE("Could not determine HSA size\n"); - return rc; - } - act_hsa_size = (rc - 1) * PAGE_SIZE; - if (act_hsa_size < ZFCPDUMP_HSA_SIZE) { - TRACE("HSA size too small: %i\n", act_hsa_size); - return -EINVAL; + return -ENODEV; } return 0; } @@ -662,7 +654,7 @@ static int __init zcore_reipl_init(void) ipl_block = (void *) __get_free_page(GFP_KERNEL); if (!ipl_block) return -ENOMEM; - if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE) + if (ipib_info.ipib < sclp_get_hsa_size()) rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE); else rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE); diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c index aca7bfc113aa..3a2ee4a740b4 100644 --- a/drivers/s390/cio/eadm_sch.c +++ b/drivers/s390/cio/eadm_sch.c @@ -190,7 +190,7 @@ static struct subchannel *eadm_get_idle_sch(void) return NULL; } -static int eadm_start_aob(struct aob *aob) +int eadm_start_aob(struct aob *aob) { struct eadm_private *private; struct subchannel *sch; @@ -218,6 +218,7 @@ out_unlock: return ret; } +EXPORT_SYMBOL_GPL(eadm_start_aob); static int eadm_subchannel_probe(struct subchannel *sch) { @@ -380,11 +381,6 @@ static struct css_driver eadm_subchannel_driver = { .restore = eadm_subchannel_restore, }; -static struct eadm_ops eadm_ops = { - .eadm_start = eadm_start_aob, - .owner = THIS_MODULE, -}; - static int __init eadm_sch_init(void) { int ret; @@ -404,7 +400,6 @@ static int __init eadm_sch_init(void) if (ret) goto cleanup; - register_eadm_ops(&eadm_ops); return ret; cleanup: @@ -415,7 +410,6 @@ cleanup: static void __exit eadm_sch_exit(void) { - unregister_eadm_ops(&eadm_ops); css_driver_unregister(&eadm_subchannel_driver); isc_unregister(EADM_SCH_ISC); debug_unregister(eadm_debug); diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c index 46ec25632e8b..15268edc54ae 100644 --- a/drivers/s390/cio/scm.c +++ b/drivers/s390/cio/scm.c @@ -15,8 +15,6 @@ #include "chsc.h" static struct device *scm_root; -static struct eadm_ops *eadm_ops; -static DEFINE_MUTEX(eadm_ops_mutex); #define to_scm_dev(n) container_of(n, struct scm_device, dev) #define to_scm_drv(d) container_of(d, struct scm_driver, drv) @@ -73,49 +71,6 @@ void scm_driver_unregister(struct scm_driver *scmdrv) } EXPORT_SYMBOL_GPL(scm_driver_unregister); -int scm_get_ref(void) -{ - int ret = 0; - - mutex_lock(&eadm_ops_mutex); - if (!eadm_ops || !try_module_get(eadm_ops->owner)) - ret = -ENOENT; - mutex_unlock(&eadm_ops_mutex); - - return ret; -} -EXPORT_SYMBOL_GPL(scm_get_ref); - -void scm_put_ref(void) -{ - mutex_lock(&eadm_ops_mutex); - module_put(eadm_ops->owner); - mutex_unlock(&eadm_ops_mutex); -} -EXPORT_SYMBOL_GPL(scm_put_ref); - -void register_eadm_ops(struct eadm_ops *ops) -{ - mutex_lock(&eadm_ops_mutex); - eadm_ops = ops; - mutex_unlock(&eadm_ops_mutex); -} -EXPORT_SYMBOL_GPL(register_eadm_ops); - -void unregister_eadm_ops(struct eadm_ops *ops) -{ - mutex_lock(&eadm_ops_mutex); - eadm_ops = NULL; - mutex_unlock(&eadm_ops_mutex); -} -EXPORT_SYMBOL_GPL(unregister_eadm_ops); - -int scm_start_aob(struct aob *aob) -{ - return eadm_ops->eadm_start(aob); -} -EXPORT_SYMBOL_GPL(scm_start_aob); - void scm_irq_handler(struct aob *aob, int error) { struct aob_rq_header *aobrq = (void *) aob->request.data; diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index d85ac1a9d2c0..fbcd48d0bfc3 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -511,7 +511,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } - if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr))) { + if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) || + (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) { rcode = -EINVAL; goto cleanup; } diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index e43db7742047..bd6f743d87a7 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -1512,7 +1512,8 @@ static int pmcraid_notify_aen( } result = - genlmsg_multicast(skb, 0, pmcraid_event_family.id, GFP_ATOMIC); + genlmsg_multicast(&pmcraid_event_family, skb, 0, + pmcraid_event_family.id, GFP_ATOMIC); /* If there are no listeners, genlmsg_multicast may return non-zero * value. diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index f85b9e5c1f05..7eb19be35d46 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -330,7 +330,7 @@ static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg) struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); - return QLA_TPG_ATTRIB(tpg)->generate_node_acls; + return tpg->tpg_attrib.generate_node_acls; } static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) @@ -338,7 +338,7 @@ static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg) struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); - return QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls; + return tpg->tpg_attrib.cache_dynamic_acls; } static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) @@ -346,7 +346,7 @@ static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg) struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); - return QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect; + return tpg->tpg_attrib.demo_mode_write_protect; } static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) @@ -354,7 +354,7 @@ static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); - return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect; + return tpg->tpg_attrib.prod_mode_write_protect; } static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) @@ -362,7 +362,7 @@ static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); - return QLA_TPG_ATTRIB(tpg)->demo_mode_login_only; + return tpg->tpg_attrib.demo_mode_login_only; } static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( @@ -847,7 +847,7 @@ static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ struct tcm_qla2xxx_tpg, se_tpg); \ \ - return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name); \ + return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ } \ \ static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ @@ -1027,10 +1027,10 @@ static struct se_portal_group *tcm_qla2xxx_make_tpg( * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic * NodeACLs */ - QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1; - QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1; - QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1; - QLA_TPG_ATTRIB(tpg)->demo_mode_login_only = 1; + tpg->tpg_attrib.generate_node_acls = 1; + tpg->tpg_attrib.demo_mode_write_protect = 1; + tpg->tpg_attrib.cache_dynamic_acls = 1; + tpg->tpg_attrib.demo_mode_login_only = 1; ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn, &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); @@ -1830,16 +1830,16 @@ static int tcm_qla2xxx_register_configfs(void) /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = tcm_qla2xxx_tpg_attrib_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; /* * Register the fabric for use within TCM */ @@ -1870,15 +1870,15 @@ static int tcm_qla2xxx_register_configfs(void) /* * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl */ - TF_CIT_TMPL(npiv_fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs; + npiv_fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; /* * Register the npiv_fabric for use within TCM */ diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h index 329327528a55..771f7b816443 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h @@ -45,8 +45,6 @@ struct tcm_qla2xxx_tpg { struct se_portal_group se_tpg; }; -#define QLA_TPG_ATTRIB(tpg) (&(tpg)->tpg_attrib) - struct tcm_qla2xxx_fc_loopid { struct se_node_acl *se_nacl; }; diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c index f379c7f3034c..2700a5a09bd4 100644 --- a/drivers/scsi/scsi_transport_srp.c +++ b/drivers/scsi/scsi_transport_srp.c @@ -24,12 +24,15 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/string.h> +#include <linux/delay.h> #include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_srp.h> +#include "scsi_priv.h" #include "scsi_transport_srp_internal.h" struct srp_host_attrs { @@ -38,7 +41,7 @@ struct srp_host_attrs { #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data) #define SRP_HOST_ATTRS 0 -#define SRP_RPORT_ATTRS 3 +#define SRP_RPORT_ATTRS 8 struct srp_internal { struct scsi_transport_template t; @@ -54,6 +57,36 @@ struct srp_internal { #define dev_to_rport(d) container_of(d, struct srp_rport, dev) #define transport_class_to_srp_rport(dev) dev_to_rport((dev)->parent) +static inline struct Scsi_Host *rport_to_shost(struct srp_rport *r) +{ + return dev_to_shost(r->dev.parent); +} + +/** + * srp_tmo_valid() - check timeout combination validity + * + * The combination of the timeout parameters must be such that SCSI commands + * are finished in a reasonable time. Hence do not allow the fast I/O fail + * timeout to exceed SCSI_DEVICE_BLOCK_MAX_TIMEOUT. Furthermore, these + * parameters must be such that multipath can detect failed paths timely. + * Hence do not allow all three parameters to be disabled simultaneously. + */ +int srp_tmo_valid(int reconnect_delay, int fast_io_fail_tmo, int dev_loss_tmo) +{ + if (reconnect_delay < 0 && fast_io_fail_tmo < 0 && dev_loss_tmo < 0) + return -EINVAL; + if (reconnect_delay == 0) + return -EINVAL; + if (fast_io_fail_tmo > SCSI_DEVICE_BLOCK_MAX_TIMEOUT) + return -EINVAL; + if (dev_loss_tmo >= LONG_MAX / HZ) + return -EINVAL; + if (fast_io_fail_tmo >= 0 && dev_loss_tmo >= 0 && + fast_io_fail_tmo >= dev_loss_tmo) + return -EINVAL; + return 0; +} +EXPORT_SYMBOL_GPL(srp_tmo_valid); static int srp_host_setup(struct transport_container *tc, struct device *dev, struct device *cdev) @@ -134,10 +167,465 @@ static ssize_t store_srp_rport_delete(struct device *dev, static DEVICE_ATTR(delete, S_IWUSR, NULL, store_srp_rport_delete); +static ssize_t show_srp_rport_state(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + static const char *const state_name[] = { + [SRP_RPORT_RUNNING] = "running", + [SRP_RPORT_BLOCKED] = "blocked", + [SRP_RPORT_FAIL_FAST] = "fail-fast", + [SRP_RPORT_LOST] = "lost", + }; + struct srp_rport *rport = transport_class_to_srp_rport(dev); + enum srp_rport_state state = rport->state; + + return sprintf(buf, "%s\n", + (unsigned)state < ARRAY_SIZE(state_name) ? + state_name[state] : "???"); +} + +static DEVICE_ATTR(state, S_IRUGO, show_srp_rport_state, NULL); + +static ssize_t srp_show_tmo(char *buf, int tmo) +{ + return tmo >= 0 ? sprintf(buf, "%d\n", tmo) : sprintf(buf, "off\n"); +} + +static int srp_parse_tmo(int *tmo, const char *buf) +{ + int res = 0; + + if (strncmp(buf, "off", 3) != 0) + res = kstrtoint(buf, 0, tmo); + else + *tmo = -1; + + return res; +} + +static ssize_t show_reconnect_delay(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + + return srp_show_tmo(buf, rport->reconnect_delay); +} + +static ssize_t store_reconnect_delay(struct device *dev, + struct device_attribute *attr, + const char *buf, const size_t count) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + int res, delay; + + res = srp_parse_tmo(&delay, buf); + if (res) + goto out; + res = srp_tmo_valid(delay, rport->fast_io_fail_tmo, + rport->dev_loss_tmo); + if (res) + goto out; + + if (rport->reconnect_delay <= 0 && delay > 0 && + rport->state != SRP_RPORT_RUNNING) { + queue_delayed_work(system_long_wq, &rport->reconnect_work, + delay * HZ); + } else if (delay <= 0) { + cancel_delayed_work(&rport->reconnect_work); + } + rport->reconnect_delay = delay; + res = count; + +out: + return res; +} + +static DEVICE_ATTR(reconnect_delay, S_IRUGO | S_IWUSR, show_reconnect_delay, + store_reconnect_delay); + +static ssize_t show_failed_reconnects(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + + return sprintf(buf, "%d\n", rport->failed_reconnects); +} + +static DEVICE_ATTR(failed_reconnects, S_IRUGO, show_failed_reconnects, NULL); + +static ssize_t show_srp_rport_fast_io_fail_tmo(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + + return srp_show_tmo(buf, rport->fast_io_fail_tmo); +} + +static ssize_t store_srp_rport_fast_io_fail_tmo(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + int res; + int fast_io_fail_tmo; + + res = srp_parse_tmo(&fast_io_fail_tmo, buf); + if (res) + goto out; + res = srp_tmo_valid(rport->reconnect_delay, fast_io_fail_tmo, + rport->dev_loss_tmo); + if (res) + goto out; + rport->fast_io_fail_tmo = fast_io_fail_tmo; + res = count; + +out: + return res; +} + +static DEVICE_ATTR(fast_io_fail_tmo, S_IRUGO | S_IWUSR, + show_srp_rport_fast_io_fail_tmo, + store_srp_rport_fast_io_fail_tmo); + +static ssize_t show_srp_rport_dev_loss_tmo(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + + return srp_show_tmo(buf, rport->dev_loss_tmo); +} + +static ssize_t store_srp_rport_dev_loss_tmo(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct srp_rport *rport = transport_class_to_srp_rport(dev); + int res; + int dev_loss_tmo; + + res = srp_parse_tmo(&dev_loss_tmo, buf); + if (res) + goto out; + res = srp_tmo_valid(rport->reconnect_delay, rport->fast_io_fail_tmo, + dev_loss_tmo); + if (res) + goto out; + rport->dev_loss_tmo = dev_loss_tmo; + res = count; + +out: + return res; +} + +static DEVICE_ATTR(dev_loss_tmo, S_IRUGO | S_IWUSR, + show_srp_rport_dev_loss_tmo, + store_srp_rport_dev_loss_tmo); + +static int srp_rport_set_state(struct srp_rport *rport, + enum srp_rport_state new_state) +{ + enum srp_rport_state old_state = rport->state; + + lockdep_assert_held(&rport->mutex); + + switch (new_state) { + case SRP_RPORT_RUNNING: + switch (old_state) { + case SRP_RPORT_LOST: + goto invalid; + default: + break; + } + break; + case SRP_RPORT_BLOCKED: + switch (old_state) { + case SRP_RPORT_RUNNING: + break; + default: + goto invalid; + } + break; + case SRP_RPORT_FAIL_FAST: + switch (old_state) { + case SRP_RPORT_LOST: + goto invalid; + default: + break; + } + break; + case SRP_RPORT_LOST: + break; + } + rport->state = new_state; + return 0; + +invalid: + return -EINVAL; +} + +/** + * srp_reconnect_work() - reconnect and schedule a new attempt if necessary + */ +static void srp_reconnect_work(struct work_struct *work) +{ + struct srp_rport *rport = container_of(to_delayed_work(work), + struct srp_rport, reconnect_work); + struct Scsi_Host *shost = rport_to_shost(rport); + int delay, res; + + res = srp_reconnect_rport(rport); + if (res != 0) { + shost_printk(KERN_ERR, shost, + "reconnect attempt %d failed (%d)\n", + ++rport->failed_reconnects, res); + delay = rport->reconnect_delay * + min(100, max(1, rport->failed_reconnects - 10)); + if (delay > 0) + queue_delayed_work(system_long_wq, + &rport->reconnect_work, delay * HZ); + } +} + +static void __rport_fail_io_fast(struct srp_rport *rport) +{ + struct Scsi_Host *shost = rport_to_shost(rport); + struct srp_internal *i; + + lockdep_assert_held(&rport->mutex); + + if (srp_rport_set_state(rport, SRP_RPORT_FAIL_FAST)) + return; + scsi_target_unblock(rport->dev.parent, SDEV_TRANSPORT_OFFLINE); + + /* Involve the LLD if possible to terminate all I/O on the rport. */ + i = to_srp_internal(shost->transportt); + if (i->f->terminate_rport_io) + i->f->terminate_rport_io(rport); +} + +/** + * rport_fast_io_fail_timedout() - fast I/O failure timeout handler + */ +static void rport_fast_io_fail_timedout(struct work_struct *work) +{ + struct srp_rport *rport = container_of(to_delayed_work(work), + struct srp_rport, fast_io_fail_work); + struct Scsi_Host *shost = rport_to_shost(rport); + + pr_info("fast_io_fail_tmo expired for SRP %s / %s.\n", + dev_name(&rport->dev), dev_name(&shost->shost_gendev)); + + mutex_lock(&rport->mutex); + if (rport->state == SRP_RPORT_BLOCKED) + __rport_fail_io_fast(rport); + mutex_unlock(&rport->mutex); +} + +/** + * rport_dev_loss_timedout() - device loss timeout handler + */ +static void rport_dev_loss_timedout(struct work_struct *work) +{ + struct srp_rport *rport = container_of(to_delayed_work(work), + struct srp_rport, dev_loss_work); + struct Scsi_Host *shost = rport_to_shost(rport); + struct srp_internal *i = to_srp_internal(shost->transportt); + + pr_info("dev_loss_tmo expired for SRP %s / %s.\n", + dev_name(&rport->dev), dev_name(&shost->shost_gendev)); + + mutex_lock(&rport->mutex); + WARN_ON(srp_rport_set_state(rport, SRP_RPORT_LOST) != 0); + scsi_target_unblock(rport->dev.parent, SDEV_TRANSPORT_OFFLINE); + mutex_unlock(&rport->mutex); + + i->f->rport_delete(rport); +} + +static void __srp_start_tl_fail_timers(struct srp_rport *rport) +{ + struct Scsi_Host *shost = rport_to_shost(rport); + int delay, fast_io_fail_tmo, dev_loss_tmo; + + lockdep_assert_held(&rport->mutex); + + if (!rport->deleted) { + delay = rport->reconnect_delay; + fast_io_fail_tmo = rport->fast_io_fail_tmo; + dev_loss_tmo = rport->dev_loss_tmo; + pr_debug("%s current state: %d\n", + dev_name(&shost->shost_gendev), rport->state); + + if (delay > 0) + queue_delayed_work(system_long_wq, + &rport->reconnect_work, + 1UL * delay * HZ); + if (fast_io_fail_tmo >= 0 && + srp_rport_set_state(rport, SRP_RPORT_BLOCKED) == 0) { + pr_debug("%s new state: %d\n", + dev_name(&shost->shost_gendev), + rport->state); + scsi_target_block(&shost->shost_gendev); + queue_delayed_work(system_long_wq, + &rport->fast_io_fail_work, + 1UL * fast_io_fail_tmo * HZ); + } + if (dev_loss_tmo >= 0) + queue_delayed_work(system_long_wq, + &rport->dev_loss_work, + 1UL * dev_loss_tmo * HZ); + } else { + pr_debug("%s has already been deleted\n", + dev_name(&shost->shost_gendev)); + srp_rport_set_state(rport, SRP_RPORT_FAIL_FAST); + scsi_target_unblock(&shost->shost_gendev, + SDEV_TRANSPORT_OFFLINE); + } +} + +/** + * srp_start_tl_fail_timers() - start the transport layer failure timers + * + * Start the transport layer fast I/O failure and device loss timers. Do not + * modify a timer that was already started. + */ +void srp_start_tl_fail_timers(struct srp_rport *rport) +{ + mutex_lock(&rport->mutex); + __srp_start_tl_fail_timers(rport); + mutex_unlock(&rport->mutex); +} +EXPORT_SYMBOL(srp_start_tl_fail_timers); + +/** + * scsi_request_fn_active() - number of kernel threads inside scsi_request_fn() + */ +static int scsi_request_fn_active(struct Scsi_Host *shost) +{ + struct scsi_device *sdev; + struct request_queue *q; + int request_fn_active = 0; + + shost_for_each_device(sdev, shost) { + q = sdev->request_queue; + + spin_lock_irq(q->queue_lock); + request_fn_active += q->request_fn_active; + spin_unlock_irq(q->queue_lock); + } + + return request_fn_active; +} + +/** + * srp_reconnect_rport() - reconnect to an SRP target port + * + * Blocks SCSI command queueing before invoking reconnect() such that + * queuecommand() won't be invoked concurrently with reconnect() from outside + * the SCSI EH. This is important since a reconnect() implementation may + * reallocate resources needed by queuecommand(). + * + * Notes: + * - This function neither waits until outstanding requests have finished nor + * tries to abort these. It is the responsibility of the reconnect() + * function to finish outstanding commands before reconnecting to the target + * port. + * - It is the responsibility of the caller to ensure that the resources + * reallocated by the reconnect() function won't be used while this function + * is in progress. One possible strategy is to invoke this function from + * the context of the SCSI EH thread only. Another possible strategy is to + * lock the rport mutex inside each SCSI LLD callback that can be invoked by + * the SCSI EH (the scsi_host_template.eh_*() functions and also the + * scsi_host_template.queuecommand() function). + */ +int srp_reconnect_rport(struct srp_rport *rport) +{ + struct Scsi_Host *shost = rport_to_shost(rport); + struct srp_internal *i = to_srp_internal(shost->transportt); + struct scsi_device *sdev; + int res; + + pr_debug("SCSI host %s\n", dev_name(&shost->shost_gendev)); + + res = mutex_lock_interruptible(&rport->mutex); + if (res) + goto out; + scsi_target_block(&shost->shost_gendev); + while (scsi_request_fn_active(shost)) + msleep(20); + res = i->f->reconnect(rport); + pr_debug("%s (state %d): transport.reconnect() returned %d\n", + dev_name(&shost->shost_gendev), rport->state, res); + if (res == 0) { + cancel_delayed_work(&rport->fast_io_fail_work); + cancel_delayed_work(&rport->dev_loss_work); + + rport->failed_reconnects = 0; + srp_rport_set_state(rport, SRP_RPORT_RUNNING); + scsi_target_unblock(&shost->shost_gendev, SDEV_RUNNING); + /* + * If the SCSI error handler has offlined one or more devices, + * invoking scsi_target_unblock() won't change the state of + * these devices into running so do that explicitly. + */ + spin_lock_irq(shost->host_lock); + __shost_for_each_device(sdev, shost) + if (sdev->sdev_state == SDEV_OFFLINE) + sdev->sdev_state = SDEV_RUNNING; + spin_unlock_irq(shost->host_lock); + } else if (rport->state == SRP_RPORT_RUNNING) { + /* + * srp_reconnect_rport() was invoked with fast_io_fail + * off. Mark the port as failed and start the TL failure + * timers if these had not yet been started. + */ + __rport_fail_io_fast(rport); + scsi_target_unblock(&shost->shost_gendev, + SDEV_TRANSPORT_OFFLINE); + __srp_start_tl_fail_timers(rport); + } else if (rport->state != SRP_RPORT_BLOCKED) { + scsi_target_unblock(&shost->shost_gendev, + SDEV_TRANSPORT_OFFLINE); + } + mutex_unlock(&rport->mutex); + +out: + return res; +} +EXPORT_SYMBOL(srp_reconnect_rport); + +/** + * srp_timed_out() - SRP transport intercept of the SCSI timeout EH + * + * If a timeout occurs while an rport is in the blocked state, ask the SCSI + * EH to continue waiting (BLK_EH_RESET_TIMER). Otherwise let the SCSI core + * handle the timeout (BLK_EH_NOT_HANDLED). + * + * Note: This function is called from soft-IRQ context and with the request + * queue lock held. + */ +static enum blk_eh_timer_return srp_timed_out(struct scsi_cmnd *scmd) +{ + struct scsi_device *sdev = scmd->device; + struct Scsi_Host *shost = sdev->host; + struct srp_internal *i = to_srp_internal(shost->transportt); + + pr_debug("timeout for sdev %s\n", dev_name(&sdev->sdev_gendev)); + return i->f->reset_timer_if_blocked && scsi_device_blocked(sdev) ? + BLK_EH_RESET_TIMER : BLK_EH_NOT_HANDLED; +} + static void srp_rport_release(struct device *dev) { struct srp_rport *rport = dev_to_rport(dev); + cancel_delayed_work_sync(&rport->reconnect_work); + cancel_delayed_work_sync(&rport->fast_io_fail_work); + cancel_delayed_work_sync(&rport->dev_loss_work); + put_device(dev->parent); kfree(rport); } @@ -185,6 +673,24 @@ static int srp_host_match(struct attribute_container *cont, struct device *dev) } /** + * srp_rport_get() - increment rport reference count + */ +void srp_rport_get(struct srp_rport *rport) +{ + get_device(&rport->dev); +} +EXPORT_SYMBOL(srp_rport_get); + +/** + * srp_rport_put() - decrement rport reference count + */ +void srp_rport_put(struct srp_rport *rport) +{ + put_device(&rport->dev); +} +EXPORT_SYMBOL(srp_rport_put); + +/** * srp_rport_add - add a SRP remote port to the device hierarchy * @shost: scsi host the remote port is connected to. * @ids: The port id for the remote port. @@ -196,12 +702,15 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost, { struct srp_rport *rport; struct device *parent = &shost->shost_gendev; + struct srp_internal *i = to_srp_internal(shost->transportt); int id, ret; rport = kzalloc(sizeof(*rport), GFP_KERNEL); if (!rport) return ERR_PTR(-ENOMEM); + mutex_init(&rport->mutex); + device_initialize(&rport->dev); rport->dev.parent = get_device(parent); @@ -210,6 +719,17 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost, memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id)); rport->roles = ids->roles; + if (i->f->reconnect) + rport->reconnect_delay = i->f->reconnect_delay ? + *i->f->reconnect_delay : 10; + INIT_DELAYED_WORK(&rport->reconnect_work, srp_reconnect_work); + rport->fast_io_fail_tmo = i->f->fast_io_fail_tmo ? + *i->f->fast_io_fail_tmo : 15; + rport->dev_loss_tmo = i->f->dev_loss_tmo ? *i->f->dev_loss_tmo : 60; + INIT_DELAYED_WORK(&rport->fast_io_fail_work, + rport_fast_io_fail_timedout); + INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout); + id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id); dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id); @@ -259,6 +779,13 @@ void srp_rport_del(struct srp_rport *rport) transport_remove_device(dev); device_del(dev); transport_destroy_device(dev); + + mutex_lock(&rport->mutex); + if (rport->state == SRP_RPORT_BLOCKED) + __rport_fail_io_fast(rport); + rport->deleted = true; + mutex_unlock(&rport->mutex); + put_device(dev); } EXPORT_SYMBOL_GPL(srp_rport_del); @@ -310,6 +837,8 @@ srp_attach_transport(struct srp_function_template *ft) if (!i) return NULL; + i->t.eh_timed_out = srp_timed_out; + i->t.tsk_mgmt_response = srp_tsk_mgmt_response; i->t.it_nexus_response = srp_it_nexus_response; @@ -327,6 +856,15 @@ srp_attach_transport(struct srp_function_template *ft) count = 0; i->rport_attrs[count++] = &dev_attr_port_id; i->rport_attrs[count++] = &dev_attr_roles; + if (ft->has_rport_state) { + i->rport_attrs[count++] = &dev_attr_state; + i->rport_attrs[count++] = &dev_attr_fast_io_fail_tmo; + i->rport_attrs[count++] = &dev_attr_dev_loss_tmo; + } + if (ft->reconnect) { + i->rport_attrs[count++] = &dev_attr_reconnect_delay; + i->rport_attrs[count++] = &dev_attr_failed_reconnects; + } if (ft->rport_delete) i->rport_attrs[count++] = &dev_attr_delete; i->rport_attrs[count++] = NULL; diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index b9f0192758d6..6d207afec8cb 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -150,7 +150,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->tx_sgl, 1, DMA_MEM_TO_DEV, - DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP); + DMA_PREP_INTERRUPT); txdesc->callback = dw_spi_dma_done; txdesc->callback_param = dws; @@ -173,7 +173,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->rx_sgl, 1, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP); + DMA_PREP_INTERRUPT); rxdesc->callback = dw_spi_dma_done; rxdesc->callback_param = dws; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 8d85ddc46011..18cc625d887f 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -357,6 +357,19 @@ struct spi_device *spi_alloc_device(struct spi_master *master) } EXPORT_SYMBOL_GPL(spi_alloc_device); +static void spi_dev_set_name(struct spi_device *spi) +{ + struct acpi_device *adev = ACPI_COMPANION(&spi->dev); + + if (adev) { + dev_set_name(&spi->dev, "spi-%s", acpi_dev_name(adev)); + return; + } + + dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev), + spi->chip_select); +} + /** * spi_add_device - Add spi_device allocated with spi_alloc_device * @spi: spi_device to register @@ -383,9 +396,7 @@ int spi_add_device(struct spi_device *spi) } /* Set the bus ID string */ - dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev), - spi->chip_select); - + spi_dev_set_name(spi); /* We need to make sure there's no other device with this * chipselect **BEFORE** we call setup(), else we'll trash @@ -1144,7 +1155,7 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level, return AE_NO_MEMORY; } - ACPI_HANDLE_SET(&spi->dev, handle); + ACPI_COMPANION_SET(&spi->dev, adev); spi->irq = -1; INIT_LIST_HEAD(&resource_list); diff --git a/drivers/staging/media/lirc/TODO b/drivers/staging/media/lirc/TODO index b6cb593f55c6..cbea5d84fed3 100644 --- a/drivers/staging/media/lirc/TODO +++ b/drivers/staging/media/lirc/TODO @@ -2,6 +2,11 @@ (see drivers/media/IR/mceusb.c vs. lirc_mceusb.c in lirc cvs for an example of a previously completed port). +- lirc_bt829 uses registers on a Mach64 VT, which has a separate kernel + framebuffer driver (atyfb) and userland X driver (mach64). It can't + simply be converted to a normal PCI driver, but ideally it should be + coordinated with the other drivers. + Please send patches to: Jarod Wilson <jarod@wilsonet.com> Greg Kroah-Hartman <greg@kroah.com> diff --git a/drivers/staging/media/lirc/lirc_bt829.c b/drivers/staging/media/lirc/lirc_bt829.c index fbbdce4c119f..30edc740ac25 100644 --- a/drivers/staging/media/lirc/lirc_bt829.c +++ b/drivers/staging/media/lirc/lirc_bt829.c @@ -63,7 +63,7 @@ static bool debug; } while (0) static int atir_minor; -static unsigned long pci_addr_phys; +static phys_addr_t pci_addr_phys; static unsigned char *pci_addr_lin; static struct lirc_driver atir_driver; @@ -78,11 +78,11 @@ static struct pci_dev *do_pci_probe(void) pci_addr_phys = 0; if (my_dev->resource[0].flags & IORESOURCE_MEM) { pci_addr_phys = my_dev->resource[0].start; - pr_info("memory at 0x%08X\n", - (unsigned int)pci_addr_phys); + pr_info("memory at %pa\n", &pci_addr_phys); } if (pci_addr_phys == 0) { pr_err("no memory resource ?\n"); + pci_dev_put(my_dev); return NULL; } } else { @@ -120,13 +120,20 @@ static void atir_set_use_dec(void *data) int init_module(void) { struct pci_dev *pdev; + int rc; pdev = do_pci_probe(); if (pdev == NULL) return -ENODEV; - if (!atir_init_start()) - return -ENODEV; + rc = pci_enable_device(pdev); + if (rc) + goto err_put_dev; + + if (!atir_init_start()) { + rc = -ENODEV; + goto err_disable; + } strcpy(atir_driver.name, "ATIR"); atir_driver.minor = -1; @@ -142,17 +149,31 @@ int init_module(void) atir_minor = lirc_register_driver(&atir_driver); if (atir_minor < 0) { pr_err("failed to register driver!\n"); - return atir_minor; + rc = atir_minor; + goto err_unmap; } dprintk("driver is registered on minor %d\n", atir_minor); return 0; + +err_unmap: + iounmap(pci_addr_lin); +err_disable: + pci_disable_device(pdev); +err_put_dev: + pci_dev_put(pdev); + return rc; } void cleanup_module(void) { + struct pci_dev *pdev = to_pci_dev(atir_driver.dev); + lirc_unregister_driver(atir_minor); + iounmap(pci_addr_lin); + pci_disable_device(pdev); + pci_dev_put(pdev); } diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c index f6bc4c91ab35..2e3a98575d47 100644 --- a/drivers/staging/media/lirc/lirc_serial.c +++ b/drivers/staging/media/lirc/lirc_serial.c @@ -707,7 +707,8 @@ static irqreturn_t irq_handler(int i, void *blah) pr_warn("ignoring spike: %d %d %lx %lx %lx %lx\n", dcd, sense, tv.tv_sec, lasttv.tv_sec, - tv.tv_usec, lasttv.tv_usec); + (unsigned long)tv.tv_usec, + (unsigned long)lasttv.tv_usec); continue; } @@ -719,7 +720,8 @@ static irqreturn_t irq_handler(int i, void *blah) pr_warn("%d %d %lx %lx %lx %lx\n", dcd, sense, tv.tv_sec, lasttv.tv_sec, - tv.tv_usec, lasttv.tv_usec); + (unsigned long)tv.tv_usec, + (unsigned long)lasttv.tv_usec); data = PULSE_MASK; } else if (deltv > 15) { data = PULSE_MASK; /* really long time */ @@ -728,7 +730,8 @@ static irqreturn_t irq_handler(int i, void *blah) pr_warn("AIEEEE: %d %d %lx %lx %lx %lx\n", dcd, sense, tv.tv_sec, lasttv.tv_sec, - tv.tv_usec, lasttv.tv_usec); + (unsigned long)tv.tv_usec, + (unsigned long)lasttv.tv_usec); /* * detecting pulse while this * MUST be a space! diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c index 11d5338b4f2f..0feeaadf29dc 100644 --- a/drivers/staging/media/lirc/lirc_zilog.c +++ b/drivers/staging/media/lirc/lirc_zilog.c @@ -61,6 +61,9 @@ #include <media/lirc_dev.h> #include <media/lirc.h> +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + struct IR; struct IR_rx { @@ -941,7 +944,14 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos) schedule(); set_current_state(TASK_INTERRUPTIBLE); } else { - unsigned char buf[rbuf->chunk_size]; + unsigned char buf[MAX_XFER_SIZE]; + + if (rbuf->chunk_size > sizeof(buf)) { + zilog_error("chunk_size is too big (%d)!\n", + rbuf->chunk_size); + ret = -EINVAL; + break; + } m = lirc_buffer_read(rbuf, buf); if (m == rbuf->chunk_size) { ret = copy_to_user((void *)outbuf+written, buf, diff --git a/drivers/staging/media/msi3101/Kconfig b/drivers/staging/media/msi3101/Kconfig index 76d5bbd4d93c..0c349c8595e4 100644 --- a/drivers/staging/media/msi3101/Kconfig +++ b/drivers/staging/media/msi3101/Kconfig @@ -1,4 +1,5 @@ config USB_MSI3101 tristate "Mirics MSi3101 SDR Dongle" depends on USB && VIDEO_DEV && VIDEO_V4L2 - select VIDEOBUF2_VMALLOC + select VIDEOBUF2_CORE + select VIDEOBUF2_VMALLOC diff --git a/drivers/staging/media/solo6x10/solo6x10-disp.c b/drivers/staging/media/solo6x10/solo6x10-disp.c index 32d9953bc36e..145295a5db72 100644 --- a/drivers/staging/media/solo6x10/solo6x10-disp.c +++ b/drivers/staging/media/solo6x10/solo6x10-disp.c @@ -176,18 +176,27 @@ static void solo_vout_config(struct solo_dev *solo_dev) static int solo_dma_vin_region(struct solo_dev *solo_dev, u32 off, u16 val, int reg_size) { - u16 buf[64]; - int i; - int ret = 0; + u16 *buf; + const int n = 64, size = n * sizeof(*buf); + int i, ret = 0; + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; - for (i = 0; i < sizeof(buf) >> 1; i++) + for (i = 0; i < n; i++) buf[i] = cpu_to_le16(val); - for (i = 0; i < reg_size; i += sizeof(buf)) - ret |= solo_p2m_dma(solo_dev, 1, buf, - SOLO_MOTION_EXT_ADDR(solo_dev) + off + i, - sizeof(buf), 0, 0); + for (i = 0; i < reg_size; i += size) { + ret = solo_p2m_dma(solo_dev, 1, buf, + SOLO_MOTION_EXT_ADDR(solo_dev) + off + i, + size, 0, 0); + + if (ret) + break; + } + kfree(buf); return ret; } diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c index a4c589604b02..d582c5b84c14 100644 --- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c +++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c @@ -95,38 +95,11 @@ static unsigned char vop_6110_pal_cif[] = { 0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00, }; -struct vop_header { - /* VE_STATUS0 */ - u32 mpeg_size:20, sad_motion_flag:1, video_motion_flag:1, vop_type:2, - channel:5, source_fl:1, interlace:1, progressive:1; - - /* VE_STATUS1 */ - u32 vsize:8, hsize:8, last_queue:4, nop0:8, scale:4; - - /* VE_STATUS2 */ - u32 mpeg_off; - - /* VE_STATUS3 */ - u32 jpeg_off; - - /* VE_STATUS4 */ - u32 jpeg_size:20, interval:10, nop1:2; - - /* VE_STATUS5/6 */ - u32 sec, usec; - - /* VE_STATUS7/8/9 */ - u32 nop2[3]; - - /* VE_STATUS10 */ - u32 mpeg_size_alt:20, nop3:12; - - u32 end_nops[5]; -} __packed; +typedef __le32 vop_header[16]; struct solo_enc_buf { enum solo_enc_types type; - struct vop_header *vh; + const vop_header *vh; int motion; }; @@ -346,7 +319,7 @@ static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma, /* Build a descriptor queue out of an SG list and send it to the P2M for * processing. */ static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip, - struct vb2_dma_sg_desc *vbuf, int off, int size, + struct sg_table *vbuf, int off, int size, unsigned int base, unsigned int base_size) { struct solo_dev *solo_dev = solo_enc->solo_dev; @@ -359,7 +332,7 @@ static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip, solo_enc->desc_count = 1; - for_each_sg(vbuf->sglist, sg, vbuf->num_pages, i) { + for_each_sg(vbuf->sgl, sg, vbuf->nents, i) { struct solo_p2m_desc *desc; dma_addr_t dma; int len; @@ -430,84 +403,145 @@ static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip, solo_enc->desc_count - 1); } +/* Extract values from VOP header - VE_STATUSxx */ +static inline int vop_interlaced(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 30) & 1; +} + +static inline u8 vop_channel(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F; +} + +static inline u8 vop_type(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[0]) >> 22) & 3; +} + +static inline u32 vop_mpeg_size(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[0]) & 0xFFFFF; +} + +static inline u8 vop_hsize(const vop_header *vh) +{ + return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF; +} + +static inline u8 vop_vsize(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[1]) & 0xFF; +} + +static inline u32 vop_mpeg_offset(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[2]); +} + +static inline u32 vop_jpeg_offset(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[3]); +} + +static inline u32 vop_jpeg_size(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[4]) & 0xFFFFF; +} + +static inline u32 vop_sec(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[5]); +} + +static inline u32 vop_usec(const vop_header *vh) +{ + return __le32_to_cpu((*vh)[6]); +} + static int solo_fill_jpeg(struct solo_enc_dev *solo_enc, - struct vb2_buffer *vb, struct vop_header *vh) + struct vb2_buffer *vb, const vop_header *vh) { struct solo_dev *solo_dev = solo_enc->solo_dev; - struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0); + struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0); int frame_size; int ret; vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; - if (vb2_plane_size(vb, 0) < vh->jpeg_size + solo_enc->jpeg_len) + if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len) return -EIO; - sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages, - solo_enc->jpeg_header, - solo_enc->jpeg_len); - - frame_size = (vh->jpeg_size + solo_enc->jpeg_len + (DMA_ALIGN - 1)) + frame_size = (vop_jpeg_size(vh) + solo_enc->jpeg_len + (DMA_ALIGN - 1)) & ~(DMA_ALIGN - 1); - vb2_set_plane_payload(vb, 0, vh->jpeg_size + solo_enc->jpeg_len); + vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len); - dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages, + /* may discard all previous data in vbuf->sgl */ + dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, DMA_FROM_DEVICE); - ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, vh->jpeg_off, - frame_size, SOLO_JPEG_EXT_ADDR(solo_dev), - SOLO_JPEG_EXT_SIZE(solo_dev)); - dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages, + ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, + vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev), + frame_size, SOLO_JPEG_EXT_ADDR(solo_dev), + SOLO_JPEG_EXT_SIZE(solo_dev)); + dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, DMA_FROM_DEVICE); + + /* add the header only after dma_unmap_sg() */ + sg_copy_from_buffer(vbuf->sgl, vbuf->nents, + solo_enc->jpeg_header, solo_enc->jpeg_len); + return ret; } static int solo_fill_mpeg(struct solo_enc_dev *solo_enc, - struct vb2_buffer *vb, struct vop_header *vh) + struct vb2_buffer *vb, const vop_header *vh) { struct solo_dev *solo_dev = solo_enc->solo_dev; - struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0); + struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0); int frame_off, frame_size; int skip = 0; int ret; - if (vb2_plane_size(vb, 0) < vh->mpeg_size) + if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh)) return -EIO; /* If this is a key frame, add extra header */ - if (!vh->vop_type) { - sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages, - solo_enc->vop, - solo_enc->vop_len); - + vb->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME); + if (!vop_type(vh)) { skip = solo_enc->vop_len; - vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; - vb2_set_plane_payload(vb, 0, vh->mpeg_size + solo_enc->vop_len); + vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) + solo_enc->vop_len); } else { vb->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME; - vb2_set_plane_payload(vb, 0, vh->mpeg_size); + vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh)); } /* Now get the actual mpeg payload */ - frame_off = (vh->mpeg_off + sizeof(*vh)) + frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) + sizeof(*vh)) % SOLO_MP4E_EXT_SIZE(solo_dev); - frame_size = (vh->mpeg_size + skip + (DMA_ALIGN - 1)) + frame_size = (vop_mpeg_size(vh) + skip + (DMA_ALIGN - 1)) & ~(DMA_ALIGN - 1); - dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages, + /* may discard all previous data in vbuf->sgl */ + dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, DMA_FROM_DEVICE); ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size, SOLO_MP4E_EXT_ADDR(solo_dev), SOLO_MP4E_EXT_SIZE(solo_dev)); - dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages, + dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents, DMA_FROM_DEVICE); + + /* add the header only after dma_unmap_sg() */ + if (!vop_type(vh)) + sg_copy_from_buffer(vbuf->sgl, vbuf->nents, + solo_enc->vop, solo_enc->vop_len); return ret; } static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc, struct vb2_buffer *vb, struct solo_enc_buf *enc_buf) { - struct vop_header *vh = enc_buf->vh; + const vop_header *vh = enc_buf->vh; int ret; /* Check for motion flags */ @@ -531,8 +565,8 @@ static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc, if (!ret) { vb->v4l2_buf.sequence = solo_enc->sequence++; - vb->v4l2_buf.timestamp.tv_sec = vh->sec; - vb->v4l2_buf.timestamp.tv_usec = vh->usec; + vb->v4l2_buf.timestamp.tv_sec = vop_sec(vh); + vb->v4l2_buf.timestamp.tv_usec = vop_usec(vh); } vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); @@ -605,15 +639,13 @@ static void solo_handle_ring(struct solo_dev *solo_dev) /* FAIL... */ if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off, - sizeof(struct vop_header))) + sizeof(vop_header))) continue; - enc_buf.vh = (struct vop_header *)solo_dev->vh_buf; - enc_buf.vh->mpeg_off -= SOLO_MP4E_EXT_ADDR(solo_dev); - enc_buf.vh->jpeg_off -= SOLO_JPEG_EXT_ADDR(solo_dev); + enc_buf.vh = solo_dev->vh_buf; /* Sanity check */ - if (enc_buf.vh->mpeg_off != off) + if (vop_mpeg_offset(enc_buf.vh) != SOLO_MP4E_EXT_ADDR(solo_dev) + off) continue; if (solo_motion_detected(solo_enc)) @@ -1329,7 +1361,7 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr) init_waitqueue_head(&solo_dev->ring_thread_wait); - solo_dev->vh_size = sizeof(struct vop_header); + solo_dev->vh_size = sizeof(vop_header); solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev, solo_dev->vh_size, &solo_dev->vh_dma); diff --git a/drivers/staging/media/solo6x10/solo6x10.h b/drivers/staging/media/solo6x10/solo6x10.h index 6f91d2e34b2a..f1bbb8cb74e6 100644 --- a/drivers/staging/media/solo6x10/solo6x10.h +++ b/drivers/staging/media/solo6x10/solo6x10.h @@ -94,7 +94,6 @@ #define SOLO_ENC_MODE_HD1 1 #define SOLO_ENC_MODE_D1 9 -#define SOLO_DEFAULT_GOP 30 #define SOLO_DEFAULT_QP 3 #ifndef V4L2_BUF_FLAG_MOTION_ON diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 38e44b9abf0f..d70e9119e906 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -805,14 +805,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int iscsi_task_attr; int sam_task_attr; - spin_lock_bh(&conn->sess->session_stats_lock); - conn->sess->cmd_pdus++; - if (conn->sess->se_sess->se_node_acl) { - spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock); - conn->sess->se_sess->se_node_acl->num_cmds++; - spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock); - } - spin_unlock_bh(&conn->sess->session_stats_lock); + atomic_long_inc(&conn->sess->cmd_pdus); hdr = (struct iscsi_scsi_req *) buf; payload_length = ntoh24(hdr->dlength); @@ -1254,20 +1247,12 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf, int rc; if (!payload_length) { - pr_err("DataOUT payload is ZERO, protocol error.\n"); - return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR, - buf); + pr_warn("DataOUT payload is ZERO, ignoring.\n"); + return 0; } /* iSCSI write */ - spin_lock_bh(&conn->sess->session_stats_lock); - conn->sess->rx_data_octets += payload_length; - if (conn->sess->se_sess->se_node_acl) { - spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock); - conn->sess->se_sess->se_node_acl->write_bytes += payload_length; - spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock); - } - spin_unlock_bh(&conn->sess->session_stats_lock); + atomic_long_add(payload_length, &conn->sess->rx_data_octets); if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) { pr_err("DataSegmentLength: %u is greater than" @@ -1486,7 +1471,7 @@ EXPORT_SYMBOL(iscsit_check_dataout_payload); static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf) { - struct iscsi_cmd *cmd; + struct iscsi_cmd *cmd = NULL; struct iscsi_data *hdr = (struct iscsi_data *)buf; int rc; bool data_crc_failed = false; @@ -1954,6 +1939,13 @@ iscsit_setup_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, (unsigned char *)hdr); } + if (!(hdr->flags & ISCSI_FLAG_CMD_FINAL) || + (hdr->flags & ISCSI_FLAG_TEXT_CONTINUE)) { + pr_err("Multi sequence text commands currently not supported\n"); + return iscsit_reject_cmd(cmd, ISCSI_REASON_CMD_NOT_SUPPORTED, + (unsigned char *)hdr); + } + pr_debug("Got Text Request: ITT: 0x%08x, CmdSN: 0x%08x," " ExpStatSN: 0x%08x, Length: %u\n", hdr->itt, hdr->cmdsn, hdr->exp_statsn, payload_length); @@ -2630,14 +2622,7 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn) return -1; } - spin_lock_bh(&conn->sess->session_stats_lock); - conn->sess->tx_data_octets += datain.length; - if (conn->sess->se_sess->se_node_acl) { - spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock); - conn->sess->se_sess->se_node_acl->read_bytes += datain.length; - spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock); - } - spin_unlock_bh(&conn->sess->session_stats_lock); + atomic_long_add(datain.length, &conn->sess->tx_data_octets); /* * Special case for successfully execution w/ both DATAIN * and Sense Data. @@ -3162,9 +3147,7 @@ void iscsit_build_rsp_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn, if (inc_stat_sn) cmd->stat_sn = conn->stat_sn++; - spin_lock_bh(&conn->sess->session_stats_lock); - conn->sess->rsp_pdus++; - spin_unlock_bh(&conn->sess->session_stats_lock); + atomic_long_inc(&conn->sess->rsp_pdus); memset(hdr, 0, ISCSI_HDR_LEN); hdr->opcode = ISCSI_OP_SCSI_CMD_RSP; @@ -3374,6 +3357,7 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd) struct iscsi_tiqn *tiqn; struct iscsi_tpg_np *tpg_np; int buffer_len, end_of_buf = 0, len = 0, payload_len = 0; + int target_name_printed; unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */ unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL; @@ -3411,19 +3395,23 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd) continue; } - len = sprintf(buf, "TargetName=%s", tiqn->tiqn); - len += 1; - - if ((len + payload_len) > buffer_len) { - end_of_buf = 1; - goto eob; - } - memcpy(payload + payload_len, buf, len); - payload_len += len; + target_name_printed = 0; spin_lock(&tiqn->tiqn_tpg_lock); list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) { + /* If demo_mode_discovery=0 and generate_node_acls=0 + * (demo mode dislabed) do not return + * TargetName+TargetAddress unless a NodeACL exists. + */ + + if ((tpg->tpg_attrib.generate_node_acls == 0) && + (tpg->tpg_attrib.demo_mode_discovery == 0) && + (!core_tpg_get_initiator_node_acl(&tpg->tpg_se_tpg, + cmd->conn->sess->sess_ops->InitiatorName))) { + continue; + } + spin_lock(&tpg->tpg_state_lock); if ((tpg->tpg_state == TPG_STATE_FREE) || (tpg->tpg_state == TPG_STATE_INACTIVE)) { @@ -3438,6 +3426,22 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd) struct iscsi_np *np = tpg_np->tpg_np; bool inaddr_any = iscsit_check_inaddr_any(np); + if (!target_name_printed) { + len = sprintf(buf, "TargetName=%s", + tiqn->tiqn); + len += 1; + + if ((len + payload_len) > buffer_len) { + spin_unlock(&tpg->tpg_np_lock); + spin_unlock(&tiqn->tiqn_tpg_lock); + end_of_buf = 1; + goto eob; + } + memcpy(payload + payload_len, buf, len); + payload_len += len; + target_name_printed = 1; + } + len = sprintf(buf, "TargetAddress=" "%s:%hu,%hu", (inaddr_any == false) ? @@ -4092,9 +4096,7 @@ restart: * hit default in the switch below. */ memset(buffer, 0xff, ISCSI_HDR_LEN); - spin_lock_bh(&conn->sess->session_stats_lock); - conn->sess->conn_digest_errors++; - spin_unlock_bh(&conn->sess->session_stats_lock); + atomic_long_inc(&conn->sess->conn_digest_errors); } else { pr_debug("Got HeaderDigest CRC32C" " 0x%08x\n", checksum); @@ -4381,7 +4383,7 @@ int iscsit_close_connection( int iscsit_close_session(struct iscsi_session *sess) { - struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess); + struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; if (atomic_read(&sess->nconn)) { diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index 7505fddca15f..de77d9aa22c6 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -111,7 +111,7 @@ static struct iscsi_chap *chap_server_open( /* * Set Identifier. */ - chap->id = ISCSI_TPG_C(conn)->tpg_chap_id++; + chap->id = conn->tpg->tpg_chap_id++; *aic_len += sprintf(aic_str + *aic_len, "CHAP_I=%d", chap->id); *aic_len += 1; pr_debug("[server] Sending CHAP_I=%d\n", chap->id); @@ -146,6 +146,7 @@ static int chap_server_compute_md5( unsigned char client_digest[MD5_SIGNATURE_SIZE]; unsigned char server_digest[MD5_SIGNATURE_SIZE]; unsigned char chap_n[MAX_CHAP_N_SIZE], chap_r[MAX_RESPONSE_LENGTH]; + size_t compare_len; struct iscsi_chap *chap = conn->auth_protocol; struct crypto_hash *tfm; struct hash_desc desc; @@ -184,7 +185,9 @@ static int chap_server_compute_md5( goto out; } - if (memcmp(chap_n, auth->userid, strlen(auth->userid)) != 0) { + /* Include the terminating NULL in the compare */ + compare_len = strlen(auth->userid) + 1; + if (strncmp(chap_n, auth->userid, compare_len) != 0) { pr_err("CHAP_N values do not match!\n"); goto out; } diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index fd145259361d..e3318edb233d 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -372,7 +372,7 @@ static ssize_t iscsi_nacl_attrib_show_##name( \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ \ - return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name); \ + return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ static ssize_t iscsi_nacl_attrib_store_##name( \ @@ -897,7 +897,7 @@ static struct se_node_acl *lio_target_make_nodeacl( if (!se_nacl_new) return ERR_PTR(-ENOMEM); - cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; + cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth; /* * se_nacl_new may be released by core_tpg_add_initiator_node_acl() * when converting a NdoeACL from demo mode -> explict @@ -920,9 +920,9 @@ static struct se_node_acl *lio_target_make_nodeacl( return ERR_PTR(-ENOMEM); } - stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group; + stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group; stats_cg->default_groups[1] = NULL; - config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group, + config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group, "iscsi_sess_stats", &iscsi_stat_sess_cit); return se_nacl; @@ -967,7 +967,7 @@ static ssize_t iscsi_tpg_attrib_show_##name( \ if (iscsit_get_tpg(tpg) < 0) \ return -EINVAL; \ \ - rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name); \ + rb = sprintf(page, "%u\n", tpg->tpg_attrib.name); \ iscsit_put_tpg(tpg); \ return rb; \ } \ @@ -1041,6 +1041,16 @@ TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); */ DEF_TPG_ATTRIB(prod_mode_write_protect); TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); +/* + * Define iscsi_tpg_attrib_s_demo_mode_discovery, + */ +DEF_TPG_ATTRIB(demo_mode_discovery); +TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); +/* + * Define iscsi_tpg_attrib_s_default_erl + */ +DEF_TPG_ATTRIB(default_erl); +TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_authentication.attr, @@ -1051,6 +1061,8 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { &iscsi_tpg_attrib_cache_dynamic_acls.attr, &iscsi_tpg_attrib_demo_mode_write_protect.attr, &iscsi_tpg_attrib_prod_mode_write_protect.attr, + &iscsi_tpg_attrib_demo_mode_discovery.attr, + &iscsi_tpg_attrib_default_erl.attr, NULL, }; @@ -1514,21 +1526,21 @@ static struct se_wwn *lio_target_call_coreaddtiqn( return ERR_PTR(-ENOMEM); } - stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group; - stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group; - stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group; - stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group; - stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group; + stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group; + stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group; + stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group; + stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group; + stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group; stats_cg->default_groups[5] = NULL; - config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group, + config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group, "iscsi_instance", &iscsi_stat_instance_cit); - config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group, + config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group, "iscsi_sess_err", &iscsi_stat_sess_err_cit); - config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group, + config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group, "iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit); - config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group, + config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group, "iscsi_login_stats", &iscsi_stat_login_cit); - config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group, + config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group, "iscsi_logout_stats", &iscsi_stat_logout_cit); pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn); @@ -1784,6 +1796,11 @@ static int lio_queue_status(struct se_cmd *se_cmd) struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd); cmd->i_state = ISTATE_SEND_STATUS; + + if (cmd->se_cmd.scsi_status || cmd->sense_reason) { + iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state); + return 0; + } cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd); return 0; @@ -1815,21 +1832,21 @@ static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth; + return tpg->tpg_attrib.default_cmdsn_depth; } static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls; + return tpg->tpg_attrib.generate_node_acls; } static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg) { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls; + return tpg->tpg_attrib.cache_dynamic_acls; } static int lio_tpg_check_demo_mode_write_protect( @@ -1837,7 +1854,7 @@ static int lio_tpg_check_demo_mode_write_protect( { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect; + return tpg->tpg_attrib.demo_mode_write_protect; } static int lio_tpg_check_prod_mode_write_protect( @@ -1845,7 +1862,7 @@ static int lio_tpg_check_prod_mode_write_protect( { struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr; - return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect; + return tpg->tpg_attrib.prod_mode_write_protect; } static void lio_tpg_release_fabric_acl( @@ -1908,9 +1925,12 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl) { struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl, se_node_acl); + struct se_portal_group *se_tpg = se_acl->se_tpg; + struct iscsi_portal_group *tpg = container_of(se_tpg, + struct iscsi_portal_group, tpg_se_tpg); - ISCSI_NODE_ATTRIB(acl)->nacl = acl; - iscsit_set_default_node_attribues(acl); + acl->node_attrib.nacl = acl; + iscsit_set_default_node_attribues(acl, tpg); } static int lio_check_stop_free(struct se_cmd *se_cmd) @@ -1995,17 +2015,17 @@ int iscsi_target_register_configfs(void) * Setup default attribute lists for various fabric->tf_cit_tmpl * sturct config_item_type's */ - TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; + fabric->tf_cit_tmpl.tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs; + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs; + fabric->tf_cit_tmpl.tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs; ret = target_fabric_configfs_register(fabric); if (ret < 0) { diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h index 9a5721b8ff96..48f7b3bf4e8c 100644 --- a/drivers/target/iscsi/iscsi_target_core.h +++ b/drivers/target/iscsi/iscsi_target_core.h @@ -37,9 +37,6 @@ #define NA_RANDOM_DATAIN_PDU_OFFSETS 0 #define NA_RANDOM_DATAIN_SEQ_OFFSETS 0 #define NA_RANDOM_R2T_OFFSETS 0 -#define NA_DEFAULT_ERL 0 -#define NA_DEFAULT_ERL_MAX 2 -#define NA_DEFAULT_ERL_MIN 0 /* struct iscsi_tpg_attrib sanity values */ #define TA_AUTHENTICATION 1 @@ -58,6 +55,8 @@ #define TA_DEMO_MODE_WRITE_PROTECT 1 /* Disabled by default in production mode w/ explict ACLs */ #define TA_PROD_MODE_WRITE_PROTECT 0 +#define TA_DEMO_MODE_DISCOVERY 1 +#define TA_DEFAULT_ERL 0 #define TA_CACHE_CORE_NPS 0 @@ -192,6 +191,7 @@ enum recover_cmdsn_ret_table { CMDSN_NORMAL_OPERATION = 0, CMDSN_LOWER_THAN_EXP = 1, CMDSN_HIGHER_THAN_EXP = 2, + CMDSN_MAXCMDSN_OVERRUN = 3, }; /* Used for iscsi_handle_immediate_data() return values */ @@ -650,14 +650,13 @@ struct iscsi_session { /* Used for session reference counting */ int session_usage_count; int session_waiting_on_uc; - u32 cmd_pdus; - u32 rsp_pdus; - u64 tx_data_octets; - u64 rx_data_octets; - u32 conn_digest_errors; - u32 conn_timeout_errors; + atomic_long_t cmd_pdus; + atomic_long_t rsp_pdus; + atomic_long_t tx_data_octets; + atomic_long_t rx_data_octets; + atomic_long_t conn_digest_errors; + atomic_long_t conn_timeout_errors; u64 creation_time; - spinlock_t session_stats_lock; /* Number of active connections */ atomic_t nconn; atomic_t session_continuation; @@ -755,11 +754,6 @@ struct iscsi_node_acl { struct se_node_acl se_node_acl; }; -#define NODE_STAT_GRPS(nacl) (&(nacl)->node_stat_grps) - -#define ISCSI_NODE_ATTRIB(t) (&(t)->node_attrib) -#define ISCSI_NODE_AUTH(t) (&(t)->node_auth) - struct iscsi_tpg_attrib { u32 authentication; u32 login_timeout; @@ -769,6 +763,8 @@ struct iscsi_tpg_attrib { u32 default_cmdsn_depth; u32 demo_mode_write_protect; u32 prod_mode_write_protect; + u32 demo_mode_discovery; + u32 default_erl; struct iscsi_portal_group *tpg; }; @@ -835,12 +831,6 @@ struct iscsi_portal_group { struct list_head tpg_list; } ____cacheline_aligned; -#define ISCSI_TPG_C(c) ((struct iscsi_portal_group *)(c)->tpg) -#define ISCSI_TPG_LUN(c, l) ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l]) -#define ISCSI_TPG_S(s) ((struct iscsi_portal_group *)(s)->tpg) -#define ISCSI_TPG_ATTRIB(t) (&(t)->tpg_attrib) -#define SE_TPG(tpg) (&(tpg)->tpg_se_tpg) - struct iscsi_wwn_stat_grps { struct config_group iscsi_stat_group; struct config_group iscsi_instance_group; @@ -871,8 +861,6 @@ struct iscsi_tiqn { struct iscsi_logout_stats logout_stats; } ____cacheline_aligned; -#define WWN_STAT_GRPS(tiqn) (&(tiqn)->tiqn_stat_grps) - struct iscsit_global { /* In core shutdown */ u32 in_shutdown; diff --git a/drivers/target/iscsi/iscsi_target_device.c b/drivers/target/iscsi/iscsi_target_device.c index 6c7a5104a4cd..7087c736daa5 100644 --- a/drivers/target/iscsi/iscsi_target_device.c +++ b/drivers/target/iscsi/iscsi_target_device.c @@ -58,11 +58,7 @@ void iscsit_increment_maxcmdsn(struct iscsi_cmd *cmd, struct iscsi_session *sess cmd->maxcmdsn_inc = 1; - if (!mutex_trylock(&sess->cmdsn_mutex)) { - sess->max_cmd_sn += 1; - pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn); - return; - } + mutex_lock(&sess->cmdsn_mutex); sess->max_cmd_sn += 1; pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn); mutex_unlock(&sess->cmdsn_mutex); diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index 41052e512d92..0d1e6ee3e992 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -757,7 +757,7 @@ int iscsit_check_post_dataout( static void iscsit_handle_time2retain_timeout(unsigned long data) { struct iscsi_session *sess = (struct iscsi_session *) data; - struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess); + struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; spin_lock_bh(&se_tpg->session_lock); @@ -785,7 +785,7 @@ static void iscsit_handle_time2retain_timeout(unsigned long data) tiqn->sess_err_stats.last_sess_failure_type = ISCSI_SESS_ERR_CXN_TIMEOUT; tiqn->sess_err_stats.cxn_timeout_errors++; - sess->conn_timeout_errors++; + atomic_long_inc(&sess->conn_timeout_errors); spin_unlock(&tiqn->sess_err_stats.lock); } } @@ -801,9 +801,9 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess) * Only start Time2Retain timer when the associated TPG is still in * an ACTIVE (eg: not disabled or shutdown) state. */ - spin_lock(&ISCSI_TPG_S(sess)->tpg_state_lock); - tpg_active = (ISCSI_TPG_S(sess)->tpg_state == TPG_STATE_ACTIVE); - spin_unlock(&ISCSI_TPG_S(sess)->tpg_state_lock); + spin_lock(&sess->tpg->tpg_state_lock); + tpg_active = (sess->tpg->tpg_state == TPG_STATE_ACTIVE); + spin_unlock(&sess->tpg->tpg_state_lock); if (!tpg_active) return; @@ -829,7 +829,7 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess) */ int iscsit_stop_time2retain_timer(struct iscsi_session *sess) { - struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess); + struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; if (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED) diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index 1794c753954a..4eb93b2b6473 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -305,7 +305,6 @@ static int iscsi_login_zero_tsih_s1( } sess->creation_time = get_jiffies_64(); - spin_lock_init(&sess->session_stats_lock); /* * The FFP CmdSN window values will be allocated from the TPG's * Initiator Node's ACL once the login has been successfully completed. @@ -347,15 +346,15 @@ static int iscsi_login_zero_tsih_s2( * Assign a new TPG Session Handle. Note this is protected with * struct iscsi_portal_group->np_login_sem from iscsit_access_np(). */ - sess->tsih = ++ISCSI_TPG_S(sess)->ntsih; + sess->tsih = ++sess->tpg->ntsih; if (!sess->tsih) - sess->tsih = ++ISCSI_TPG_S(sess)->ntsih; + sess->tsih = ++sess->tpg->ntsih; /* * Create the default params from user defined values.. */ if (iscsi_copy_param_list(&conn->param_list, - ISCSI_TPG_C(conn)->param_list, 1) < 0) { + conn->tpg->param_list, 1) < 0) { iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_NO_RESOURCES); return -1; @@ -380,7 +379,7 @@ static int iscsi_login_zero_tsih_s2( * In our case, we have already located the struct iscsi_tiqn at this point. */ memset(buf, 0, 32); - sprintf(buf, "TargetPortalGroupTag=%hu", ISCSI_TPG_S(sess)->tpgt); + sprintf(buf, "TargetPortalGroupTag=%hu", sess->tpg->tpgt); if (iscsi_change_param_value(buf, conn->param_list, 0) < 0) { iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_NO_RESOURCES); @@ -575,7 +574,7 @@ static int iscsi_login_non_zero_tsih_s2( iscsi_login_set_conn_values(sess, conn, pdu->cid); if (iscsi_copy_param_list(&conn->param_list, - ISCSI_TPG_C(conn)->param_list, 0) < 0) { + conn->tpg->param_list, 0) < 0) { iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_NO_RESOURCES); return -1; @@ -593,7 +592,7 @@ static int iscsi_login_non_zero_tsih_s2( * In our case, we have already located the struct iscsi_tiqn at this point. */ memset(buf, 0, 32); - sprintf(buf, "TargetPortalGroupTag=%hu", ISCSI_TPG_S(sess)->tpgt); + sprintf(buf, "TargetPortalGroupTag=%hu", sess->tpg->tpgt); if (iscsi_change_param_value(buf, conn->param_list, 0) < 0) { iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR, ISCSI_LOGIN_STATUS_NO_RESOURCES); @@ -691,7 +690,7 @@ int iscsi_post_login_handler( int stop_timer = 0; struct iscsi_session *sess = conn->sess; struct se_session *se_sess = sess->se_sess; - struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess); + struct iscsi_portal_group *tpg = sess->tpg; struct se_portal_group *se_tpg = &tpg->tpg_se_tpg; struct iscsi_thread_set *ts; @@ -1154,7 +1153,7 @@ old_sess_out: spin_lock_bh(&conn->sess->conn_lock); if (conn->sess->session_state == TARG_SESS_STATE_FAILED) { struct se_portal_group *se_tpg = - &ISCSI_TPG_C(conn)->tpg_se_tpg; + &conn->tpg->tpg_se_tpg; atomic_set(&conn->sess->session_continuation, 0); spin_unlock_bh(&conn->sess->conn_lock); diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c index ef6d836a4d09..83c965c65386 100644 --- a/drivers/target/iscsi/iscsi_target_nego.c +++ b/drivers/target/iscsi/iscsi_target_nego.c @@ -88,7 +88,7 @@ int extract_param( if (len < 0) return -1; - if (len > max_length) { + if (len >= max_length) { pr_err("Length of input: %d exceeds max_length:" " %d\n", len, max_length); return -1; @@ -140,7 +140,7 @@ static u32 iscsi_handle_authentication( iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl, se_node_acl); - auth = ISCSI_NODE_AUTH(iscsi_nacl); + auth = &iscsi_nacl->node_auth; } } else { /* @@ -789,7 +789,7 @@ static int iscsi_target_handle_csg_zero( return -1; if (!iscsi_check_negotiated_keys(conn->param_list)) { - if (ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication && + if (conn->tpg->tpg_attrib.authentication && !strncmp(param->value, NONE, 4)) { pr_err("Initiator sent AuthMethod=None but" " Target is enforcing iSCSI Authentication," @@ -799,7 +799,7 @@ static int iscsi_target_handle_csg_zero( return -1; } - if (ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication && + if (conn->tpg->tpg_attrib.authentication && !login->auth_complete) return 0; @@ -862,7 +862,7 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log } if (!login->auth_complete && - ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication) { + conn->tpg->tpg_attrib.authentication) { pr_err("Initiator is requesting CSG: 1, has not been" " successfully authenticated, and the Target is" " enforcing iSCSI Authentication, login failed.\n"); diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c index 93bdc475eb00..16454a922e2b 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.c +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c @@ -33,7 +33,8 @@ static inline char *iscsit_na_get_initiatorname( } void iscsit_set_default_node_attribues( - struct iscsi_node_acl *acl) + struct iscsi_node_acl *acl, + struct iscsi_portal_group *tpg) { struct iscsi_node_attrib *a = &acl->node_attrib; @@ -44,7 +45,7 @@ void iscsit_set_default_node_attribues( a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS; a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS; a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS; - a->default_erl = NA_DEFAULT_ERL; + a->default_erl = tpg->tpg_attrib.default_erl; } int iscsit_na_dataout_timeout( diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h index c970b326ef23..0c69a46a62ec 100644 --- a/drivers/target/iscsi/iscsi_target_nodeattrib.h +++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h @@ -1,7 +1,8 @@ #ifndef ISCSI_TARGET_NODEATTRIB_H #define ISCSI_TARGET_NODEATTRIB_H -extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *); +extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *, + struct iscsi_portal_group *); extern int iscsit_na_dataout_timeout(struct iscsi_node_acl *, u32); extern int iscsit_na_dataout_timeout_retries(struct iscsi_node_acl *, u32); extern int iscsit_na_nopin_timeout(struct iscsi_node_acl *, u32); diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index f788e8b5e855..103395510307 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -792,7 +792,8 @@ static ssize_t iscsi_stat_sess_show_attr_cmd_pdus( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%u\n", sess->cmd_pdus); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->cmd_pdus)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); @@ -815,7 +816,8 @@ static ssize_t iscsi_stat_sess_show_attr_rsp_pdus( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%u\n", sess->rsp_pdus); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->rsp_pdus)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); @@ -838,8 +840,8 @@ static ssize_t iscsi_stat_sess_show_attr_txdata_octs( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%llu\n", - (unsigned long long)sess->tx_data_octets); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->tx_data_octets)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); @@ -862,8 +864,8 @@ static ssize_t iscsi_stat_sess_show_attr_rxdata_octs( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%llu\n", - (unsigned long long)sess->rx_data_octets); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->rx_data_octets)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); @@ -886,8 +888,8 @@ static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%u\n", - sess->conn_digest_errors); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->conn_digest_errors)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); @@ -910,8 +912,8 @@ static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors( if (se_sess) { sess = se_sess->fabric_sess_ptr; if (sess) - ret = snprintf(page, PAGE_SIZE, "%u\n", - sess->conn_timeout_errors); + ret = snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&sess->conn_timeout_errors)); } spin_unlock_bh(&se_nacl->nacl_sess_lock); diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c index 4faeb47fa5e1..39761837608d 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.c +++ b/drivers/target/iscsi/iscsi_target_tpg.c @@ -223,6 +223,8 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg) a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS; a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT; a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT; + a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY; + a->default_erl = TA_DEFAULT_ERL; } int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg) @@ -237,7 +239,7 @@ int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_gro if (iscsi_create_default_params(&tpg->param_list) < 0) goto err_out; - ISCSI_TPG_ATTRIB(tpg)->tpg = tpg; + tpg->tpg_attrib.tpg = tpg; spin_lock(&tpg->tpg_state_lock); tpg->tpg_state = TPG_STATE_INACTIVE; @@ -330,7 +332,7 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg) return -EINVAL; } - if (ISCSI_TPG_ATTRIB(tpg)->authentication) { + if (tpg->tpg_attrib.authentication) { if (!strcmp(param->value, NONE)) { ret = iscsi_update_param_value(param, CHAP); if (ret) @@ -820,3 +822,39 @@ int iscsit_ta_prod_mode_write_protect( return 0; } + +int iscsit_ta_demo_mode_discovery( + struct iscsi_portal_group *tpg, + u32 flag) +{ + struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; + + if ((flag != 0) && (flag != 1)) { + pr_err("Illegal value %d\n", flag); + return -EINVAL; + } + + a->demo_mode_discovery = flag; + pr_debug("iSCSI_TPG[%hu] - Demo Mode Discovery bit:" + " %s\n", tpg->tpgt, (a->demo_mode_discovery) ? + "ON" : "OFF"); + + return 0; +} + +int iscsit_ta_default_erl( + struct iscsi_portal_group *tpg, + u32 default_erl) +{ + struct iscsi_tpg_attrib *a = &tpg->tpg_attrib; + + if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) { + pr_err("Illegal value for default_erl: %u\n", default_erl); + return -EINVAL; + } + + a->default_erl = default_erl; + pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl); + + return 0; +} diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h index b77693e2c209..213c0fc7fdc9 100644 --- a/drivers/target/iscsi/iscsi_target_tpg.h +++ b/drivers/target/iscsi/iscsi_target_tpg.h @@ -37,5 +37,7 @@ extern int iscsit_ta_default_cmdsn_depth(struct iscsi_portal_group *, u32); extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32); extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32); extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32); +extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32); +extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32); #endif /* ISCSI_TARGET_TPG_H */ diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index b0cac0c342e1..0819e688a398 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -242,9 +242,9 @@ static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cm */ if (iscsi_sna_gt(cmdsn, sess->max_cmd_sn)) { pr_err("Received CmdSN: 0x%08x is greater than" - " MaxCmdSN: 0x%08x, protocol error.\n", cmdsn, + " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn, sess->max_cmd_sn); - ret = CMDSN_ERROR_CANNOT_RECOVER; + ret = CMDSN_MAXCMDSN_OVERRUN; } else if (cmdsn == sess->exp_cmd_sn) { sess->exp_cmd_sn++; @@ -303,14 +303,16 @@ int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, ret = CMDSN_HIGHER_THAN_EXP; break; case CMDSN_LOWER_THAN_EXP: + case CMDSN_MAXCMDSN_OVERRUN: + default: cmd->i_state = ISTATE_REMOVE; iscsit_add_cmd_to_immediate_queue(cmd, conn, cmd->i_state); - ret = cmdsn_ret; - break; - default: - reason = ISCSI_REASON_PROTOCOL_ERROR; - reject = true; - ret = cmdsn_ret; + /* + * Existing callers for iscsit_sequence_cmd() will silently + * ignore commands with CMDSN_LOWER_THAN_EXP, so force this + * return for CMDSN_MAXCMDSN_OVERRUN as well.. + */ + ret = CMDSN_LOWER_THAN_EXP; break; } mutex_unlock(&conn->sess->cmdsn_mutex); @@ -980,7 +982,7 @@ static void iscsit_handle_nopin_response_timeout(unsigned long data) tiqn->sess_err_stats.last_sess_failure_type = ISCSI_SESS_ERR_CXN_TIMEOUT; tiqn->sess_err_stats.cxn_timeout_errors++; - conn->sess->conn_timeout_errors++; + atomic_long_inc(&conn->sess->conn_timeout_errors); spin_unlock_bh(&tiqn->sess_err_stats.lock); } } diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 0f6d69dabca1..1b41e6776152 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -135,6 +135,21 @@ static int tcm_loop_change_queue_depth( return sdev->queue_depth; } +static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag) +{ + if (sdev->tagged_supported) { + scsi_set_tag_type(sdev, tag); + + if (tag) + scsi_activate_tcq(sdev, sdev->queue_depth); + else + scsi_deactivate_tcq(sdev, sdev->queue_depth); + } else + tag = 0; + + return tag; +} + /* * Locate the SAM Task Attr from struct scsi_cmnd * */ @@ -178,7 +193,10 @@ static void tcm_loop_submission_work(struct work_struct *work) set_host_byte(sc, DID_NO_CONNECT); goto out_done; } - + if (tl_tpg->tl_transport_status == TCM_TRANSPORT_OFFLINE) { + set_host_byte(sc, DID_TRANSPORT_DISRUPTED); + goto out_done; + } tl_nexus = tl_hba->tl_nexus; if (!tl_nexus) { scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus" @@ -233,6 +251,7 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc) } tl_cmd->sc = sc; + tl_cmd->sc_cmd_tag = sc->tag; INIT_WORK(&tl_cmd->work, tcm_loop_submission_work); queue_work(tcm_loop_workqueue, &tl_cmd->work); return 0; @@ -242,41 +261,21 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc) * Called from SCSI EH process context to issue a LUN_RESET TMR * to struct scsi_device */ -static int tcm_loop_device_reset(struct scsi_cmnd *sc) +static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg, + struct tcm_loop_nexus *tl_nexus, + int lun, int task, enum tcm_tmreq_table tmr) { struct se_cmd *se_cmd = NULL; - struct se_portal_group *se_tpg; struct se_session *se_sess; + struct se_portal_group *se_tpg; struct tcm_loop_cmd *tl_cmd = NULL; - struct tcm_loop_hba *tl_hba; - struct tcm_loop_nexus *tl_nexus; struct tcm_loop_tmr *tl_tmr = NULL; - struct tcm_loop_tpg *tl_tpg; - int ret = FAILED, rc; - /* - * Locate the tcm_loop_hba_t pointer - */ - tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); - /* - * Locate the tl_nexus and se_sess pointers - */ - tl_nexus = tl_hba->tl_nexus; - if (!tl_nexus) { - pr_err("Unable to perform device reset without" - " active I_T Nexus\n"); - return FAILED; - } - se_sess = tl_nexus->se_sess; - /* - * Locate the tl_tpg and se_tpg pointers from TargetID in sc->device->id - */ - tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; - se_tpg = &tl_tpg->tl_se_tpg; + int ret = TMR_FUNCTION_FAILED, rc; tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL); if (!tl_cmd) { pr_err("Unable to allocate memory for tl_cmd\n"); - return FAILED; + return ret; } tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL); @@ -287,6 +286,8 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc) init_waitqueue_head(&tl_tmr->tl_tmr_wait); se_cmd = &tl_cmd->tl_se_cmd; + se_tpg = &tl_tpg->tl_se_tpg; + se_sess = tl_nexus->se_sess; /* * Initialize struct se_cmd descriptor from target_core_mod infrastructure */ @@ -294,17 +295,23 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc) DMA_NONE, MSG_SIMPLE_TAG, &tl_cmd->tl_sense_buf[0]); - rc = core_tmr_alloc_req(se_cmd, tl_tmr, TMR_LUN_RESET, GFP_KERNEL); + rc = core_tmr_alloc_req(se_cmd, tl_tmr, tmr, GFP_KERNEL); if (rc < 0) goto release; + + if (tmr == TMR_ABORT_TASK) + se_cmd->se_tmr_req->ref_task_tag = task; + /* - * Locate the underlying TCM struct se_lun from sc->device->lun + * Locate the underlying TCM struct se_lun */ - if (transport_lookup_tmr_lun(se_cmd, sc->device->lun) < 0) + if (transport_lookup_tmr_lun(se_cmd, lun) < 0) { + ret = TMR_LUN_DOES_NOT_EXIST; goto release; + } /* - * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp() - * to wake us up. + * Queue the TMR to TCM Core and sleep waiting for + * tcm_loop_queue_tm_rsp() to wake us up. */ transport_generic_handle_tmr(se_cmd); wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete)); @@ -312,8 +319,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc) * The TMR LUN_RESET has completed, check the response status and * then release allocations. */ - ret = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ? - SUCCESS : FAILED; + ret = se_cmd->se_tmr_req->response; release: if (se_cmd) transport_generic_free_cmd(se_cmd, 1); @@ -323,6 +329,94 @@ release: return ret; } +static int tcm_loop_abort_task(struct scsi_cmnd *sc) +{ + struct tcm_loop_hba *tl_hba; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_tpg *tl_tpg; + int ret = FAILED; + + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + /* + * Locate the tl_nexus and se_sess pointers + */ + tl_nexus = tl_hba->tl_nexus; + if (!tl_nexus) { + pr_err("Unable to perform device reset without" + " active I_T Nexus\n"); + return FAILED; + } + + /* + * Locate the tl_tpg pointer from TargetID in sc->device->id + */ + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun, + sc->tag, TMR_ABORT_TASK); + return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED; +} + +/* + * Called from SCSI EH process context to issue a LUN_RESET TMR + * to struct scsi_device + */ +static int tcm_loop_device_reset(struct scsi_cmnd *sc) +{ + struct tcm_loop_hba *tl_hba; + struct tcm_loop_nexus *tl_nexus; + struct tcm_loop_tpg *tl_tpg; + int ret = FAILED; + + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + /* + * Locate the tl_nexus and se_sess pointers + */ + tl_nexus = tl_hba->tl_nexus; + if (!tl_nexus) { + pr_err("Unable to perform device reset without" + " active I_T Nexus\n"); + return FAILED; + } + /* + * Locate the tl_tpg pointer from TargetID in sc->device->id + */ + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun, + 0, TMR_LUN_RESET); + return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED; +} + +static int tcm_loop_target_reset(struct scsi_cmnd *sc) +{ + struct tcm_loop_hba *tl_hba; + struct tcm_loop_tpg *tl_tpg; + + /* + * Locate the tcm_loop_hba_t pointer + */ + tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host); + if (!tl_hba) { + pr_err("Unable to perform device reset without" + " active I_T Nexus\n"); + return FAILED; + } + /* + * Locate the tl_tpg pointer from TargetID in sc->device->id + */ + tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id]; + if (tl_tpg) { + tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE; + return SUCCESS; + } + return FAILED; +} + static int tcm_loop_slave_alloc(struct scsi_device *sd) { set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags); @@ -331,6 +425,15 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd) static int tcm_loop_slave_configure(struct scsi_device *sd) { + if (sd->tagged_supported) { + scsi_activate_tcq(sd, sd->queue_depth); + scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG, + sd->host->cmd_per_lun); + } else { + scsi_adjust_queue_depth(sd, 0, + sd->host->cmd_per_lun); + } + return 0; } @@ -340,7 +443,10 @@ static struct scsi_host_template tcm_loop_driver_template = { .name = "TCM_Loopback", .queuecommand = tcm_loop_queuecommand, .change_queue_depth = tcm_loop_change_queue_depth, + .change_queue_type = tcm_loop_change_queue_type, + .eh_abort_handler = tcm_loop_abort_task, .eh_device_reset_handler = tcm_loop_device_reset, + .eh_target_reset_handler = tcm_loop_target_reset, .can_queue = 1024, .this_id = -1, .sg_tablesize = 256, @@ -699,7 +805,10 @@ static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl) static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd) { - return 1; + struct tcm_loop_cmd *tl_cmd = container_of(se_cmd, + struct tcm_loop_cmd, tl_se_cmd); + + return tl_cmd->sc_cmd_tag; } static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd) @@ -932,7 +1041,10 @@ static int tcm_loop_drop_nexus( struct tcm_loop_nexus *tl_nexus; struct tcm_loop_hba *tl_hba = tpg->tl_hba; - tl_nexus = tpg->tl_hba->tl_nexus; + if (!tl_hba) + return -ENODEV; + + tl_nexus = tl_hba->tl_nexus; if (!tl_nexus) return -ENODEV; @@ -1061,8 +1173,56 @@ check_newline: TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR); +static ssize_t tcm_loop_tpg_show_transport_status( + struct se_portal_group *se_tpg, + char *page) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + const char *status = NULL; + ssize_t ret = -EINVAL; + + switch (tl_tpg->tl_transport_status) { + case TCM_TRANSPORT_ONLINE: + status = "online"; + break; + case TCM_TRANSPORT_OFFLINE: + status = "offline"; + break; + default: + break; + } + + if (status) + ret = snprintf(page, PAGE_SIZE, "%s\n", status); + + return ret; +} + +static ssize_t tcm_loop_tpg_store_transport_status( + struct se_portal_group *se_tpg, + const char *page, + size_t count) +{ + struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, + struct tcm_loop_tpg, tl_se_tpg); + + if (!strncmp(page, "online", 6)) { + tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE; + return count; + } + if (!strncmp(page, "offline", 7)) { + tl_tpg->tl_transport_status = TCM_TRANSPORT_OFFLINE; + return count; + } + return -EINVAL; +} + +TF_TPG_BASE_ATTR(tcm_loop, transport_status, S_IRUGO | S_IWUSR); + static struct configfs_attribute *tcm_loop_tpg_attrs[] = { &tcm_loop_tpg_nexus.attr, + &tcm_loop_tpg_transport_status.attr, NULL, }; @@ -1334,11 +1494,11 @@ static int tcm_loop_register_configfs(void) /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; /* * Once fabric->tf_ops has been setup, now register the fabric for * use within TCM diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h index dd7a84ee78e1..54c59d0b6608 100644 --- a/drivers/target/loopback/tcm_loop.h +++ b/drivers/target/loopback/tcm_loop.h @@ -10,6 +10,8 @@ struct tcm_loop_cmd { /* State of Linux/SCSI CDB+Data descriptor */ u32 sc_cmd_state; + /* Tagged command queueing */ + u32 sc_cmd_tag; /* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */ struct scsi_cmnd *sc; /* The TCM I/O descriptor that is accessed via container_of() */ @@ -40,8 +42,12 @@ struct tcm_loop_nacl { struct se_node_acl se_node_acl; }; +#define TCM_TRANSPORT_ONLINE 0 +#define TCM_TRANSPORT_OFFLINE 1 + struct tcm_loop_tpg { unsigned short tl_tpgt; + unsigned short tl_transport_status; atomic_t tl_tpg_port_count; struct se_portal_group tl_se_tpg; struct tcm_loop_hba *tl_hba; diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index e51b09a04d52..24884cac19ce 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -2556,15 +2556,15 @@ static int sbp_register_configfs(void) /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = sbp_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = sbp_tpg_base_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = sbp_tpg_attrib_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = sbp_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = sbp_tpg_base_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = sbp_tpg_attrib_attrs; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; ret = target_fabric_configfs_register(fabric); if (ret < 0) { diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 47244102281e..fdcee326bfbc 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -44,7 +44,7 @@ static sense_reason_t core_alua_check_transition(int state, int *primary); static int core_alua_set_tg_pt_secondary_state( struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, - struct se_port *port, int explict, int offline); + struct se_port *port, int explicit, int offline); static u16 alua_lu_gps_counter; static u32 alua_lu_gps_count; @@ -117,12 +117,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) /* * Set supported ASYMMETRIC ACCESS State bits */ - buf[off] = 0x80; /* T_SUP */ - buf[off] |= 0x40; /* O_SUP */ - buf[off] |= 0x8; /* U_SUP */ - buf[off] |= 0x4; /* S_SUP */ - buf[off] |= 0x2; /* AN_SUP */ - buf[off++] |= 0x1; /* AO_SUP */ + buf[off++] |= tg_pt_gp->tg_pt_gp_alua_supported_states; /* * TARGET PORT GROUP */ @@ -175,7 +170,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) if (ext_hdr != 0) { buf[4] = 0x10; /* - * Set the implict transition time (in seconds) for the application + * Set the implicit transition time (in seconds) for the application * client to use as a base for it's transition timeout value. * * Use the current tg_pt_gp_mem -> tg_pt_gp membership from the LUN @@ -188,7 +183,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); tg_pt_gp = tg_pt_gp_mem->tg_pt_gp; if (tg_pt_gp) - buf[5] = tg_pt_gp->tg_pt_gp_implict_trans_secs; + buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs; spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); } } @@ -199,7 +194,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd) } /* - * SET_TARGET_PORT_GROUPS for explict ALUA operation. + * SET_TARGET_PORT_GROUPS for explicit ALUA operation. * * See spc4r17 section 6.35 */ @@ -232,7 +227,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; /* - * Determine if explict ALUA via SET_TARGET_PORT_GROUPS is allowed + * Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed * for the local tg_pt_gp. */ l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem; @@ -251,9 +246,9 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) } spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock); - if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA)) { + if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) { pr_debug("Unable to process SET_TARGET_PORT_GROUPS" - " while TPGS_EXPLICT_ALUA is disabled\n"); + " while TPGS_EXPLICIT_ALUA is disabled\n"); rc = TCM_UNSUPPORTED_SCSI_OPCODE; goto out; } @@ -330,7 +325,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) spin_unlock(&dev->t10_alua.tg_pt_gps_lock); } else { /* - * Extact the RELATIVE TARGET PORT IDENTIFIER to identify + * Extract the RELATIVE TARGET PORT IDENTIFIER to identify * the Target Port in question for the the incoming * SET_TARGET_PORT_GROUPS op. */ @@ -487,7 +482,7 @@ static inline int core_alua_state_transition( u8 *alua_ascq) { /* - * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITIO as defined by + * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITION as defined by * spc4r17 section 5.9.2.5 */ switch (cdb[0]) { @@ -515,9 +510,9 @@ static inline int core_alua_state_transition( } /* - * return 1: Is used to signal LUN not accecsable, and check condition/not ready + * return 1: Is used to signal LUN not accessible, and check condition/not ready * return 0: Used to signal success - * reutrn -1: Used to signal failure, and invalid cdb field + * return -1: Used to signal failure, and invalid cdb field */ sense_reason_t target_alua_state_check(struct se_cmd *cmd) @@ -566,12 +561,12 @@ target_alua_state_check(struct se_cmd *cmd) nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs; spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); /* - * Process ALUA_ACCESS_STATE_ACTIVE_OPTMIZED in a separate conditional + * Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional * statement so the compiler knows explicitly to check this case first. * For the Optimized ALUA access state case, we want to process the * incoming fabric cmd ASAP.. */ - if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTMIZED) + if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED) return 0; switch (out_alua_state) { @@ -620,13 +615,13 @@ out: } /* - * Check implict and explict ALUA state change request. + * Check implicit and explicit ALUA state change request. */ static sense_reason_t core_alua_check_transition(int state, int *primary) { switch (state) { - case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED: + case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED: case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: case ALUA_ACCESS_STATE_STANDBY: case ALUA_ACCESS_STATE_UNAVAILABLE: @@ -654,7 +649,7 @@ core_alua_check_transition(int state, int *primary) static char *core_alua_dump_state(int state) { switch (state) { - case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED: + case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED: return "Active/Optimized"; case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED: return "Active/NonOptimized"; @@ -676,10 +671,10 @@ char *core_alua_dump_status(int status) switch (status) { case ALUA_STATUS_NONE: return "None"; - case ALUA_STATUS_ALTERED_BY_EXPLICT_STPG: - return "Altered by Explict STPG"; - case ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA: - return "Altered by Implict ALUA"; + case ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG: + return "Altered by Explicit STPG"; + case ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA: + return "Altered by Implicit ALUA"; default: return "Unknown"; } @@ -770,7 +765,7 @@ static int core_alua_do_transition_tg_pt( struct se_node_acl *nacl, unsigned char *md_buf, int new_state, - int explict) + int explicit) { struct se_dev_entry *se_deve; struct se_lun_acl *lacl; @@ -784,9 +779,9 @@ static int core_alua_do_transition_tg_pt( old_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, ALUA_ACCESS_STATE_TRANSITION); - tg_pt_gp->tg_pt_gp_alua_access_status = (explict) ? - ALUA_STATUS_ALTERED_BY_EXPLICT_STPG : - ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA; + tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ? + ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG : + ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA; /* * Check for the optional ALUA primary state transition delay */ @@ -802,7 +797,7 @@ static int core_alua_do_transition_tg_pt( * change, a device server shall establish a unit attention * condition for the initiator port associated with every I_T * nexus with the additional sense code set to ASYMMETRIC - * ACCESS STATE CHAGED. + * ACCESS STATE CHANGED. * * After an explicit target port asymmetric access state * change, a device server shall establish a unit attention @@ -821,12 +816,12 @@ static int core_alua_do_transition_tg_pt( lacl = se_deve->se_lun_acl; /* * se_deve->se_lun_acl pointer may be NULL for a - * entry created without explict Node+MappedLUN ACLs + * entry created without explicit Node+MappedLUN ACLs */ if (!lacl) continue; - if (explict && + if (explicit && (nacl != NULL) && (nacl == lacl->se_lun_nacl) && (l_port != NULL) && (l_port == port)) continue; @@ -866,8 +861,8 @@ static int core_alua_do_transition_tg_pt( atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, new_state); pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu" - " from primary access state %s to %s\n", (explict) ? "explict" : - "implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), + " from primary access state %s to %s\n", (explicit) ? "explicit" : + "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), tg_pt_gp->tg_pt_gp_id, core_alua_dump_state(old_state), core_alua_dump_state(new_state)); @@ -880,7 +875,7 @@ int core_alua_do_port_transition( struct se_port *l_port, struct se_node_acl *l_nacl, int new_state, - int explict) + int explicit) { struct se_device *dev; struct se_port *port; @@ -917,7 +912,7 @@ int core_alua_do_port_transition( * success. */ core_alua_do_transition_tg_pt(l_tg_pt_gp, l_port, l_nacl, - md_buf, new_state, explict); + md_buf, new_state, explicit); atomic_dec(&lu_gp->lu_gp_ref_cnt); smp_mb__after_atomic_dec(); kfree(md_buf); @@ -946,7 +941,7 @@ int core_alua_do_port_transition( continue; /* * If the target behavior port asymmetric access state - * is changed for any target port group accessiable via + * is changed for any target port group accessible via * a logical unit within a LU group, the target port * behavior group asymmetric access states for the same * target port group accessible via other logical units @@ -970,7 +965,7 @@ int core_alua_do_port_transition( * success. */ core_alua_do_transition_tg_pt(tg_pt_gp, port, - nacl, md_buf, new_state, explict); + nacl, md_buf, new_state, explicit); spin_lock(&dev->t10_alua.tg_pt_gps_lock); atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt); @@ -987,7 +982,7 @@ int core_alua_do_port_transition( pr_debug("Successfully processed LU Group: %s all ALUA TG PT" " Group IDs: %hu %s transition to primary state: %s\n", config_item_name(&lu_gp->lu_gp_group.cg_item), - l_tg_pt_gp->tg_pt_gp_id, (explict) ? "explict" : "implict", + l_tg_pt_gp->tg_pt_gp_id, (explicit) ? "explicit" : "implicit", core_alua_dump_state(new_state)); atomic_dec(&lu_gp->lu_gp_ref_cnt); @@ -1034,7 +1029,7 @@ static int core_alua_update_tpg_secondary_metadata( static int core_alua_set_tg_pt_secondary_state( struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem, struct se_port *port, - int explict, + int explicit, int offline) { struct t10_alua_tg_pt_gp *tg_pt_gp; @@ -1061,13 +1056,13 @@ static int core_alua_set_tg_pt_secondary_state( atomic_set(&port->sep_tg_pt_secondary_offline, 0); md_buf_len = tg_pt_gp->tg_pt_gp_md_buf_len; - port->sep_tg_pt_secondary_stat = (explict) ? - ALUA_STATUS_ALTERED_BY_EXPLICT_STPG : - ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA; + port->sep_tg_pt_secondary_stat = (explicit) ? + ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG : + ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA; pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu" - " to secondary access state: %s\n", (explict) ? "explict" : - "implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), + " to secondary access state: %s\n", (explicit) ? "explicit" : + "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item), tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE"); spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); @@ -1232,7 +1227,7 @@ void core_alua_free_lu_gp(struct t10_alua_lu_gp *lu_gp) * struct se_device is released via core_alua_free_lu_gp_mem(). * * If the passed lu_gp does NOT match the default_lu_gp, assume - * we want to re-assocate a given lu_gp_mem with default_lu_gp. + * we want to re-associate a given lu_gp_mem with default_lu_gp. */ spin_lock(&lu_gp_mem->lu_gp_mem_lock); if (lu_gp != default_lu_gp) @@ -1354,18 +1349,25 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev, tg_pt_gp->tg_pt_gp_dev = dev; tg_pt_gp->tg_pt_gp_md_buf_len = ALUA_MD_BUF_LEN; atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, - ALUA_ACCESS_STATE_ACTIVE_OPTMIZED); + ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED); /* - * Enable both explict and implict ALUA support by default + * Enable both explicit and implicit ALUA support by default */ tg_pt_gp->tg_pt_gp_alua_access_type = - TPGS_EXPLICT_ALUA | TPGS_IMPLICT_ALUA; + TPGS_EXPLICIT_ALUA | TPGS_IMPLICIT_ALUA; /* * Set the default Active/NonOptimized Delay in milliseconds */ tg_pt_gp->tg_pt_gp_nonop_delay_msecs = ALUA_DEFAULT_NONOP_DELAY_MSECS; tg_pt_gp->tg_pt_gp_trans_delay_msecs = ALUA_DEFAULT_TRANS_DELAY_MSECS; - tg_pt_gp->tg_pt_gp_implict_trans_secs = ALUA_DEFAULT_IMPLICT_TRANS_SECS; + tg_pt_gp->tg_pt_gp_implicit_trans_secs = ALUA_DEFAULT_IMPLICIT_TRANS_SECS; + + /* + * Enable all supported states + */ + tg_pt_gp->tg_pt_gp_alua_supported_states = + ALUA_T_SUP | ALUA_O_SUP | + ALUA_U_SUP | ALUA_S_SUP | ALUA_AN_SUP | ALUA_AO_SUP; if (def_group) { spin_lock(&dev->t10_alua.tg_pt_gps_lock); @@ -1465,7 +1467,7 @@ void core_alua_free_tg_pt_gp( * been called from target_core_alua_drop_tg_pt_gp(). * * Here we remove *tg_pt_gp from the global list so that - * no assications *OR* explict ALUA via SET_TARGET_PORT_GROUPS + * no associations *OR* explicit ALUA via SET_TARGET_PORT_GROUPS * can be made while we are releasing struct t10_alua_tg_pt_gp. */ spin_lock(&dev->t10_alua.tg_pt_gps_lock); @@ -1501,7 +1503,7 @@ void core_alua_free_tg_pt_gp( * core_alua_free_tg_pt_gp_mem(). * * If the passed tg_pt_gp does NOT match the default_tg_pt_gp, - * assume we want to re-assocate a given tg_pt_gp_mem with + * assume we want to re-associate a given tg_pt_gp_mem with * default_tg_pt_gp. */ spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock); @@ -1740,13 +1742,13 @@ ssize_t core_alua_show_access_type( struct t10_alua_tg_pt_gp *tg_pt_gp, char *page) { - if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA) && - (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)) - return sprintf(page, "Implict and Explict\n"); - else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA) - return sprintf(page, "Implict\n"); - else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA) - return sprintf(page, "Explict\n"); + if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA) && + (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) + return sprintf(page, "Implicit and Explicit\n"); + else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA) + return sprintf(page, "Implicit\n"); + else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA) + return sprintf(page, "Explicit\n"); else return sprintf(page, "None\n"); } @@ -1771,11 +1773,11 @@ ssize_t core_alua_store_access_type( } if (tmp == 3) tg_pt_gp->tg_pt_gp_alua_access_type = - TPGS_IMPLICT_ALUA | TPGS_EXPLICT_ALUA; + TPGS_IMPLICIT_ALUA | TPGS_EXPLICIT_ALUA; else if (tmp == 2) - tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICT_ALUA; + tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICIT_ALUA; else if (tmp == 1) - tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICT_ALUA; + tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICIT_ALUA; else tg_pt_gp->tg_pt_gp_alua_access_type = 0; @@ -1844,14 +1846,14 @@ ssize_t core_alua_store_trans_delay_msecs( return count; } -ssize_t core_alua_show_implict_trans_secs( +ssize_t core_alua_show_implicit_trans_secs( struct t10_alua_tg_pt_gp *tg_pt_gp, char *page) { - return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implict_trans_secs); + return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implicit_trans_secs); } -ssize_t core_alua_store_implict_trans_secs( +ssize_t core_alua_store_implicit_trans_secs( struct t10_alua_tg_pt_gp *tg_pt_gp, const char *page, size_t count) @@ -1861,16 +1863,16 @@ ssize_t core_alua_store_implict_trans_secs( ret = kstrtoul(page, 0, &tmp); if (ret < 0) { - pr_err("Unable to extract implict_trans_secs\n"); + pr_err("Unable to extract implicit_trans_secs\n"); return ret; } - if (tmp > ALUA_MAX_IMPLICT_TRANS_SECS) { - pr_err("Passed implict_trans_secs: %lu, exceeds" - " ALUA_MAX_IMPLICT_TRANS_SECS: %d\n", tmp, - ALUA_MAX_IMPLICT_TRANS_SECS); + if (tmp > ALUA_MAX_IMPLICIT_TRANS_SECS) { + pr_err("Passed implicit_trans_secs: %lu, exceeds" + " ALUA_MAX_IMPLICIT_TRANS_SECS: %d\n", tmp, + ALUA_MAX_IMPLICIT_TRANS_SECS); return -EINVAL; } - tg_pt_gp->tg_pt_gp_implict_trans_secs = (int)tmp; + tg_pt_gp->tg_pt_gp_implicit_trans_secs = (int)tmp; return count; } @@ -1970,8 +1972,8 @@ ssize_t core_alua_store_secondary_status( return ret; } if ((tmp != ALUA_STATUS_NONE) && - (tmp != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) && - (tmp != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) { + (tmp != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && + (tmp != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) { pr_err("Illegal value for alua_tg_pt_status: %lu\n", tmp); return -EINVAL; diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h index e539c3e7f4ad..88e2e835f14a 100644 --- a/drivers/target/target_core_alua.h +++ b/drivers/target/target_core_alua.h @@ -7,15 +7,15 @@ * from spc4r17 section 6.4.2 Table 135 */ #define TPGS_NO_ALUA 0x00 -#define TPGS_IMPLICT_ALUA 0x10 -#define TPGS_EXPLICT_ALUA 0x20 +#define TPGS_IMPLICIT_ALUA 0x10 +#define TPGS_EXPLICIT_ALUA 0x20 /* * ASYMMETRIC ACCESS STATE field * * from spc4r17 section 6.27 Table 245 */ -#define ALUA_ACCESS_STATE_ACTIVE_OPTMIZED 0x0 +#define ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED 0x0 #define ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED 0x1 #define ALUA_ACCESS_STATE_STANDBY 0x2 #define ALUA_ACCESS_STATE_UNAVAILABLE 0x3 @@ -23,13 +23,24 @@ #define ALUA_ACCESS_STATE_TRANSITION 0xf /* + * from spc4r36j section 6.37 Table 306 + */ +#define ALUA_T_SUP 0x80 +#define ALUA_O_SUP 0x40 +#define ALUA_LBD_SUP 0x10 +#define ALUA_U_SUP 0x08 +#define ALUA_S_SUP 0x04 +#define ALUA_AN_SUP 0x02 +#define ALUA_AO_SUP 0x01 + +/* * REPORT_TARGET_PORT_GROUP STATUS CODE * * from spc4r17 section 6.27 Table 246 */ #define ALUA_STATUS_NONE 0x00 -#define ALUA_STATUS_ALTERED_BY_EXPLICT_STPG 0x01 -#define ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA 0x02 +#define ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG 0x01 +#define ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA 0x02 /* * From spc4r17, Table D.1: ASC and ASCQ Assignement @@ -46,17 +57,17 @@ #define ALUA_DEFAULT_NONOP_DELAY_MSECS 100 #define ALUA_MAX_NONOP_DELAY_MSECS 10000 /* 10 seconds */ /* - * Used for implict and explict ALUA transitional delay, that is disabled + * Used for implicit and explicit ALUA transitional delay, that is disabled * by default, and is intended to be used for debugging client side ALUA code. */ #define ALUA_DEFAULT_TRANS_DELAY_MSECS 0 #define ALUA_MAX_TRANS_DELAY_MSECS 30000 /* 30 seconds */ /* - * Used for the recommended application client implict transition timeout + * Used for the recommended application client implicit transition timeout * in seconds, returned by the REPORT_TARGET_PORT_GROUPS w/ extended header. */ -#define ALUA_DEFAULT_IMPLICT_TRANS_SECS 0 -#define ALUA_MAX_IMPLICT_TRANS_SECS 255 +#define ALUA_DEFAULT_IMPLICIT_TRANS_SECS 0 +#define ALUA_MAX_IMPLICIT_TRANS_SECS 255 /* * Used by core_alua_update_tpg_primary_metadata() and * core_alua_update_tpg_secondary_metadata() @@ -113,9 +124,9 @@ extern ssize_t core_alua_show_trans_delay_msecs(struct t10_alua_tg_pt_gp *, char *); extern ssize_t core_alua_store_trans_delay_msecs(struct t10_alua_tg_pt_gp *, const char *, size_t); -extern ssize_t core_alua_show_implict_trans_secs(struct t10_alua_tg_pt_gp *, +extern ssize_t core_alua_show_implicit_trans_secs(struct t10_alua_tg_pt_gp *, char *); -extern ssize_t core_alua_store_implict_trans_secs(struct t10_alua_tg_pt_gp *, +extern ssize_t core_alua_store_implicit_trans_secs(struct t10_alua_tg_pt_gp *, const char *, size_t); extern ssize_t core_alua_show_preferred_bit(struct t10_alua_tg_pt_gp *, char *); diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 82e81c542e43..272755d03e5a 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -177,16 +177,16 @@ static struct config_group *target_core_register_fabric( * struct target_fabric_configfs *tf will contain a usage reference. */ pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n", - &TF_CIT_TMPL(tf)->tfc_wwn_cit); + &tf->tf_cit_tmpl.tfc_wwn_cit); tf->tf_group.default_groups = tf->tf_default_groups; tf->tf_group.default_groups[0] = &tf->tf_disc_group; tf->tf_group.default_groups[1] = NULL; config_group_init_type_name(&tf->tf_group, name, - &TF_CIT_TMPL(tf)->tfc_wwn_cit); + &tf->tf_cit_tmpl.tfc_wwn_cit); config_group_init_type_name(&tf->tf_disc_group, "discovery_auth", - &TF_CIT_TMPL(tf)->tfc_discovery_cit); + &tf->tf_cit_tmpl.tfc_discovery_cit); pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:" " %s\n", tf->tf_group.cg_item.ci_name); @@ -2036,7 +2036,7 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( int new_state, ret; if (!tg_pt_gp->tg_pt_gp_valid_id) { - pr_err("Unable to do implict ALUA on non valid" + pr_err("Unable to do implicit ALUA on non valid" " tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id); return -EINVAL; } @@ -2049,9 +2049,9 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( } new_state = (int)tmp; - if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)) { - pr_err("Unable to process implict configfs ALUA" - " transition while TPGS_IMPLICT_ALUA is disabled\n"); + if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) { + pr_err("Unable to process implicit configfs ALUA" + " transition while TPGS_IMPLICIT_ALUA is disabled\n"); return -EINVAL; } @@ -2097,8 +2097,8 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( new_status = (int)tmp; if ((new_status != ALUA_STATUS_NONE) && - (new_status != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) && - (new_status != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) { + (new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) && + (new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) { pr_err("Illegal ALUA access status: 0x%02x\n", new_status); return -EINVAL; @@ -2131,6 +2131,90 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_type( SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR); /* + * alua_supported_states + */ + +#define SE_DEV_ALUA_SUPPORT_STATE_SHOW(_name, _var, _bit) \ +static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_support_##_name( \ + struct t10_alua_tg_pt_gp *t, char *p) \ +{ \ + return sprintf(p, "%d\n", !!(t->_var & _bit)); \ +} + +#define SE_DEV_ALUA_SUPPORT_STATE_STORE(_name, _var, _bit) \ +static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\ + struct t10_alua_tg_pt_gp *t, const char *p, size_t c) \ +{ \ + unsigned long tmp; \ + int ret; \ + \ + if (!t->tg_pt_gp_valid_id) { \ + pr_err("Unable to do set ##_name ALUA state on non" \ + " valid tg_pt_gp ID: %hu\n", \ + t->tg_pt_gp_valid_id); \ + return -EINVAL; \ + } \ + \ + ret = kstrtoul(p, 0, &tmp); \ + if (ret < 0) { \ + pr_err("Invalid value '%s', must be '0' or '1'\n", p); \ + return -EINVAL; \ + } \ + if (tmp > 1) { \ + pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \ + return -EINVAL; \ + } \ + if (!tmp) \ + t->_var |= _bit; \ + else \ + t->_var &= ~_bit; \ + \ + return c; \ +} + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(transitioning, + tg_pt_gp_alua_supported_states, ALUA_T_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(transitioning, + tg_pt_gp_alua_supported_states, ALUA_T_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_transitioning, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(offline, + tg_pt_gp_alua_supported_states, ALUA_O_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(offline, + tg_pt_gp_alua_supported_states, ALUA_O_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_offline, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(lba_dependent, + tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(lba_dependent, + tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(unavailable, + tg_pt_gp_alua_supported_states, ALUA_U_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(unavailable, + tg_pt_gp_alua_supported_states, ALUA_U_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_unavailable, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(standby, + tg_pt_gp_alua_supported_states, ALUA_S_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(standby, + tg_pt_gp_alua_supported_states, ALUA_S_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_standby, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_optimized, + tg_pt_gp_alua_supported_states, ALUA_AO_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(active_optimized, + tg_pt_gp_alua_supported_states, ALUA_AO_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_optimized, S_IRUGO | S_IWUSR); + +SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_nonoptimized, + tg_pt_gp_alua_supported_states, ALUA_AN_SUP); +SE_DEV_ALUA_SUPPORT_STATE_STORE(active_nonoptimized, + tg_pt_gp_alua_supported_states, ALUA_AN_SUP); +SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_nonoptimized, S_IRUGO | S_IWUSR); + +/* * alua_write_metadata */ static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_write_metadata( @@ -2210,24 +2294,24 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_trans_delay_msecs( SE_DEV_ALUA_TG_PT_ATTR(trans_delay_msecs, S_IRUGO | S_IWUSR); /* - * implict_trans_secs + * implicit_trans_secs */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_implict_trans_secs( +static ssize_t target_core_alua_tg_pt_gp_show_attr_implicit_trans_secs( struct t10_alua_tg_pt_gp *tg_pt_gp, char *page) { - return core_alua_show_implict_trans_secs(tg_pt_gp, page); + return core_alua_show_implicit_trans_secs(tg_pt_gp, page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_implict_trans_secs( +static ssize_t target_core_alua_tg_pt_gp_store_attr_implicit_trans_secs( struct t10_alua_tg_pt_gp *tg_pt_gp, const char *page, size_t count) { - return core_alua_store_implict_trans_secs(tg_pt_gp, page, count); + return core_alua_store_implicit_trans_secs(tg_pt_gp, page, count); } -SE_DEV_ALUA_TG_PT_ATTR(implict_trans_secs, S_IRUGO | S_IWUSR); +SE_DEV_ALUA_TG_PT_ATTR(implicit_trans_secs, S_IRUGO | S_IWUSR); /* * preferred @@ -2350,10 +2434,17 @@ static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { &target_core_alua_tg_pt_gp_alua_access_state.attr, &target_core_alua_tg_pt_gp_alua_access_status.attr, &target_core_alua_tg_pt_gp_alua_access_type.attr, + &target_core_alua_tg_pt_gp_alua_support_transitioning.attr, + &target_core_alua_tg_pt_gp_alua_support_offline.attr, + &target_core_alua_tg_pt_gp_alua_support_lba_dependent.attr, + &target_core_alua_tg_pt_gp_alua_support_unavailable.attr, + &target_core_alua_tg_pt_gp_alua_support_standby.attr, + &target_core_alua_tg_pt_gp_alua_support_active_nonoptimized.attr, + &target_core_alua_tg_pt_gp_alua_support_active_optimized.attr, &target_core_alua_tg_pt_gp_alua_write_metadata.attr, &target_core_alua_tg_pt_gp_nonop_delay_msecs.attr, &target_core_alua_tg_pt_gp_trans_delay_msecs.attr, - &target_core_alua_tg_pt_gp_implict_trans_secs.attr, + &target_core_alua_tg_pt_gp_implicit_trans_secs.attr, &target_core_alua_tg_pt_gp_preferred.attr, &target_core_alua_tg_pt_gp_tg_pt_gp_id.attr, &target_core_alua_tg_pt_gp_members.attr, diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index d90dbb0f1a69..207b340498a3 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -92,6 +92,9 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) se_cmd->pr_res_key = deve->pr_res_key; se_cmd->orig_fe_lun = unpacked_lun; se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; + + percpu_ref_get(&se_lun->lun_ref); + se_cmd->lun_ref_active = true; } spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags); @@ -119,24 +122,20 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun) se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0; se_cmd->orig_fe_lun = 0; se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD; + + percpu_ref_get(&se_lun->lun_ref); + se_cmd->lun_ref_active = true; } /* Directly associate cmd with se_dev */ se_cmd->se_dev = se_lun->lun_se_dev; - /* TODO: get rid of this and use atomics for stats */ dev = se_lun->lun_se_dev; - spin_lock_irqsave(&dev->stats_lock, flags); - dev->num_cmds++; + atomic_long_inc(&dev->num_cmds); if (se_cmd->data_direction == DMA_TO_DEVICE) - dev->write_bytes += se_cmd->data_length; + atomic_long_add(se_cmd->data_length, &dev->write_bytes); else if (se_cmd->data_direction == DMA_FROM_DEVICE) - dev->read_bytes += se_cmd->data_length; - spin_unlock_irqrestore(&dev->stats_lock, flags); - - spin_lock_irqsave(&se_lun->lun_cmd_lock, flags); - list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list); - spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags); + atomic_long_add(se_cmd->data_length, &dev->read_bytes); return 0; } @@ -314,14 +313,14 @@ int core_enable_device_list_for_node( deve = nacl->device_list[mapped_lun]; /* - * Check if the call is handling demo mode -> explict LUN ACL + * Check if the call is handling demo mode -> explicit LUN ACL * transition. This transition must be for the same struct se_lun * + mapped_lun that was setup in demo mode.. */ if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) { if (deve->se_lun_acl != NULL) { pr_err("struct se_dev_entry->se_lun_acl" - " already set for demo mode -> explict" + " already set for demo mode -> explicit" " LUN ACL transition\n"); spin_unlock_irq(&nacl->device_list_lock); return -EINVAL; @@ -329,7 +328,7 @@ int core_enable_device_list_for_node( if (deve->se_lun != lun) { pr_err("struct se_dev_entry->se_lun does" " match passed struct se_lun for demo mode" - " -> explict LUN ACL transition\n"); + " -> explicit LUN ACL transition\n"); spin_unlock_irq(&nacl->device_list_lock); return -EINVAL; } @@ -1407,6 +1406,7 @@ static void scsi_dump_inquiry(struct se_device *dev) struct se_device *target_alloc_device(struct se_hba *hba, const char *name) { struct se_device *dev; + struct se_lun *xcopy_lun; dev = hba->transport->alloc_device(hba, name); if (!dev) @@ -1423,7 +1423,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) INIT_LIST_HEAD(&dev->state_list); INIT_LIST_HEAD(&dev->qf_cmd_list); INIT_LIST_HEAD(&dev->g_dev_node); - spin_lock_init(&dev->stats_lock); spin_lock_init(&dev->execute_task_lock); spin_lock_init(&dev->delayed_cmd_lock); spin_lock_init(&dev->dev_reservation_lock); @@ -1469,6 +1468,14 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name) dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS; dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS; + xcopy_lun = &dev->xcopy_lun; + xcopy_lun->lun_se_dev = dev; + init_completion(&xcopy_lun->lun_shutdown_comp); + INIT_LIST_HEAD(&xcopy_lun->lun_acl_list); + spin_lock_init(&xcopy_lun->lun_acl_lock); + spin_lock_init(&xcopy_lun->lun_sep_lock); + init_completion(&xcopy_lun->lun_ref_comp); + return dev; } diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index 3503996d7d10..dae2ad6a669e 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -385,9 +385,9 @@ static struct config_group *target_fabric_make_mappedlun( } config_group_init_type_name(&lacl->se_lun_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit); + &tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit); config_group_init_type_name(&lacl->ml_stat_grps.stat_group, - "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit); + "statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit); lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group; lacl_cg->default_groups[1] = NULL; @@ -504,16 +504,16 @@ static struct config_group *target_fabric_make_nodeacl( nacl_cg->default_groups[4] = NULL; config_group_init_type_name(&se_nacl->acl_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit); config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib", - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit); config_group_init_type_name(&se_nacl->acl_auth_group, "auth", - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit); config_group_init_type_name(&se_nacl->acl_param_group, "param", - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit); config_group_init_type_name(&se_nacl->acl_fabric_stat_group, "fabric_statistics", - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit); return &se_nacl->acl_group; } @@ -595,7 +595,7 @@ static struct config_group *target_fabric_make_np( se_tpg_np->tpg_np_parent = se_tpg; config_group_init_type_name(&se_tpg_np->tpg_np_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit); + &tf->tf_cit_tmpl.tfc_tpg_np_base_cit); return &se_tpg_np->tpg_np_group; } @@ -899,9 +899,9 @@ static struct config_group *target_fabric_make_lun( } config_group_init_type_name(&lun->lun_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_port_cit); + &tf->tf_cit_tmpl.tfc_tpg_port_cit); config_group_init_type_name(&lun->port_stat_grps.stat_group, - "statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit); + "statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit); lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group; lun_cg->default_groups[1] = NULL; @@ -1056,19 +1056,19 @@ static struct config_group *target_fabric_make_tpg( se_tpg->tpg_group.default_groups[6] = NULL; config_group_init_type_name(&se_tpg->tpg_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_base_cit); + &tf->tf_cit_tmpl.tfc_tpg_base_cit); config_group_init_type_name(&se_tpg->tpg_lun_group, "lun", - &TF_CIT_TMPL(tf)->tfc_tpg_lun_cit); + &tf->tf_cit_tmpl.tfc_tpg_lun_cit); config_group_init_type_name(&se_tpg->tpg_np_group, "np", - &TF_CIT_TMPL(tf)->tfc_tpg_np_cit); + &tf->tf_cit_tmpl.tfc_tpg_np_cit); config_group_init_type_name(&se_tpg->tpg_acl_group, "acls", - &TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit); + &tf->tf_cit_tmpl.tfc_tpg_nacl_cit); config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib", - &TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit); + &tf->tf_cit_tmpl.tfc_tpg_attrib_cit); config_group_init_type_name(&se_tpg->tpg_auth_group, "auth", - &TF_CIT_TMPL(tf)->tfc_tpg_auth_cit); + &tf->tf_cit_tmpl.tfc_tpg_auth_cit); config_group_init_type_name(&se_tpg->tpg_param_group, "param", - &TF_CIT_TMPL(tf)->tfc_tpg_param_cit); + &tf->tf_cit_tmpl.tfc_tpg_param_cit); return &se_tpg->tpg_group; } @@ -1155,9 +1155,9 @@ static struct config_group *target_fabric_make_wwn( wwn->wwn_group.default_groups[1] = NULL; config_group_init_type_name(&wwn->wwn_group, name, - &TF_CIT_TMPL(tf)->tfc_tpg_cit); + &tf->tf_cit_tmpl.tfc_tpg_cit); config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics", - &TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit); + &tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit); return &wwn->wwn_group; } diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index b662f89dedac..0e34cda3271e 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -562,7 +562,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, } else { ret = fd_do_rw(cmd, sgl, sgl_nents, 1); /* - * Perform implict vfs_fsync_range() for fd_do_writev() ops + * Perform implicit vfs_fsync_range() for fd_do_writev() ops * for SCSI WRITEs with Forced Unit Access (FUA) set. * Allow this to happen independent of WCE=0 setting. */ diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index b9a3394fe479..c87959f12760 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -710,6 +710,45 @@ static sector_t iblock_get_blocks(struct se_device *dev) return iblock_emulate_read_cap_with_block_size(dev, bd, q); } +static sector_t iblock_get_alignment_offset_lbas(struct se_device *dev) +{ + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + struct block_device *bd = ib_dev->ibd_bd; + int ret; + + ret = bdev_alignment_offset(bd); + if (ret == -1) + return 0; + + /* convert offset-bytes to offset-lbas */ + return ret / bdev_logical_block_size(bd); +} + +static unsigned int iblock_get_lbppbe(struct se_device *dev) +{ + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + struct block_device *bd = ib_dev->ibd_bd; + int logs_per_phys = bdev_physical_block_size(bd) / bdev_logical_block_size(bd); + + return ilog2(logs_per_phys); +} + +static unsigned int iblock_get_io_min(struct se_device *dev) +{ + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + struct block_device *bd = ib_dev->ibd_bd; + + return bdev_io_min(bd); +} + +static unsigned int iblock_get_io_opt(struct se_device *dev) +{ + struct iblock_dev *ib_dev = IBLOCK_DEV(dev); + struct block_device *bd = ib_dev->ibd_bd; + + return bdev_io_opt(bd); +} + static struct sbc_ops iblock_sbc_ops = { .execute_rw = iblock_execute_rw, .execute_sync_cache = iblock_execute_sync_cache, @@ -749,6 +788,10 @@ static struct se_subsystem_api iblock_template = { .show_configfs_dev_params = iblock_show_configfs_dev_params, .get_device_type = sbc_get_device_type, .get_blocks = iblock_get_blocks, + .get_alignment_offset_lbas = iblock_get_alignment_offset_lbas, + .get_lbppbe = iblock_get_lbppbe, + .get_io_min = iblock_get_io_min, + .get_io_opt = iblock_get_io_opt, .get_write_cache = iblock_get_write_cache, }; diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index 579128abe3f5..47b63b094cdc 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -75,8 +75,6 @@ extern struct se_device *g_lun0_dev; struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, const char *); -struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, - unsigned char *); void core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *); void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *); struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32); @@ -102,7 +100,7 @@ int transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int); int transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int); int transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int); bool target_stop_cmd(struct se_cmd *cmd, unsigned long *flags); -int transport_clear_lun_from_sessions(struct se_lun *); +int transport_clear_lun_ref(struct se_lun *); void transport_send_task_abort(struct se_cmd *); sense_reason_t target_cmd_size_check(struct se_cmd *cmd, unsigned int size); void target_qf_do_work(struct work_struct *work); diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index d1ae4c5c3ffd..2f5d77932c80 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -474,7 +474,7 @@ static int core_scsi3_pr_seq_non_holder( * statement. */ if (!ret && !other_cdb) { - pr_debug("Allowing explict CDB: 0x%02x for %s" + pr_debug("Allowing explicit CDB: 0x%02x for %s" " reservation holder\n", cdb[0], core_scsi3_pr_dump_type(pr_reg_type)); @@ -507,7 +507,7 @@ static int core_scsi3_pr_seq_non_holder( */ if (!registered_nexus) { - pr_debug("Allowing implict CDB: 0x%02x" + pr_debug("Allowing implicit CDB: 0x%02x" " for %s reservation on unregistered" " nexus\n", cdb[0], core_scsi3_pr_dump_type(pr_reg_type)); @@ -522,7 +522,7 @@ static int core_scsi3_pr_seq_non_holder( * allow commands from registered nexuses. */ - pr_debug("Allowing implict CDB: 0x%02x for %s" + pr_debug("Allowing implicit CDB: 0x%02x for %s" " reservation\n", cdb[0], core_scsi3_pr_dump_type(pr_reg_type)); @@ -683,7 +683,7 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration( alua_port_list) { /* * This pointer will be NULL for demo mode MappedLUNs - * that have not been make explict via a ConfigFS + * that have not been make explicit via a ConfigFS * MappedLUN group for the SCSI Initiator Node ACL. */ if (!deve_tmp->se_lun_acl) @@ -1158,7 +1158,7 @@ static void core_scsi3_put_pr_reg(struct t10_pr_registration *pr_reg) smp_mb__after_atomic_dec(); } -static int core_scsi3_check_implict_release( +static int core_scsi3_check_implicit_release( struct se_device *dev, struct t10_pr_registration *pr_reg) { @@ -1174,7 +1174,7 @@ static int core_scsi3_check_implict_release( } if (pr_res_holder == pr_reg) { /* - * Perform an implict RELEASE if the registration that + * Perform an implicit RELEASE if the registration that * is being released is holding the reservation. * * From spc4r17, section 5.7.11.1: @@ -1192,7 +1192,7 @@ static int core_scsi3_check_implict_release( * For 'All Registrants' reservation types, all existing * registrations are still processed as reservation holders * in core_scsi3_pr_seq_non_holder() after the initial - * reservation holder is implictly released here. + * reservation holder is implicitly released here. */ } else if (pr_reg->pr_reg_all_tg_pt && (!strcmp(pr_res_holder->pr_reg_nacl->initiatorname, @@ -2125,7 +2125,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key, /* * sa_res_key=0 Unregister Reservation Key for registered I_T Nexus. */ - pr_holder = core_scsi3_check_implict_release( + pr_holder = core_scsi3_check_implicit_release( cmd->se_dev, pr_reg); if (pr_holder < 0) { ret = TCM_RESERVATION_CONFLICT; @@ -2402,7 +2402,7 @@ static void __core_scsi3_complete_pro_release( struct se_device *dev, struct se_node_acl *se_nacl, struct t10_pr_registration *pr_reg, - int explict) + int explicit) { struct target_core_fabric_ops *tfo = se_nacl->se_tpg->se_tpg_tfo; char i_buf[PR_REG_ISID_ID_LEN]; @@ -2416,7 +2416,7 @@ static void __core_scsi3_complete_pro_release( pr_debug("SPC-3 PR [%s] Service Action: %s RELEASE cleared" " reservation holder TYPE: %s ALL_TG_PT: %d\n", - tfo->get_fabric_name(), (explict) ? "explict" : "implict", + tfo->get_fabric_name(), (explicit) ? "explicit" : "implicit", core_scsi3_pr_dump_type(pr_reg->pr_res_type), (pr_reg->pr_reg_all_tg_pt) ? 1 : 0); pr_debug("SPC-3 PR [%s] RELEASE Node: %s%s\n", @@ -2692,7 +2692,7 @@ static void __core_scsi3_complete_pro_preempt( memset(i_buf, 0, PR_REG_ISID_ID_LEN); core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN); /* - * Do an implict RELEASE of the existing reservation. + * Do an implicit RELEASE of the existing reservation. */ if (dev->dev_pr_res_holder) __core_scsi3_complete_pro_release(dev, nacl, @@ -2845,7 +2845,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, * 5.7.11.4 Preempting, Table 52 and Figure 7. * * For a ZERO SA Reservation key, release - * all other registrations and do an implict + * all other registrations and do an implicit * release of active persistent reservation. * * For a non-ZERO SA Reservation key, only diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 131327ac7f5b..4ffe5f2ec0e9 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -27,7 +27,6 @@ #include <linux/string.h> #include <linux/parser.h> #include <linux/timer.h> -#include <linux/blkdev.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <scsi/scsi.h> diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index d9b92b2c524d..52ae54e60105 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -105,12 +105,22 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd) buf[9] = (dev->dev_attrib.block_size >> 16) & 0xff; buf[10] = (dev->dev_attrib.block_size >> 8) & 0xff; buf[11] = dev->dev_attrib.block_size & 0xff; + + if (dev->transport->get_lbppbe) + buf[13] = dev->transport->get_lbppbe(dev) & 0x0f; + + if (dev->transport->get_alignment_offset_lbas) { + u16 lalba = dev->transport->get_alignment_offset_lbas(dev); + buf[14] = (lalba >> 8) & 0x3f; + buf[15] = lalba & 0xff; + } + /* * Set Thin Provisioning Enable bit following sbc3r22 in section * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled. */ if (dev->dev_attrib.emulate_tpu || dev->dev_attrib.emulate_tpws) - buf[14] = 0x80; + buf[14] |= 0x80; rbuf = transport_kmap_data_sg(cmd); if (rbuf) { diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 074539558a54..021c3f4a4f00 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -48,7 +48,7 @@ static void spc_fill_alua_data(struct se_port *port, unsigned char *buf) buf[5] = 0x80; /* - * Set TPGS field for explict and/or implict ALUA access type + * Set TPGS field for explicit and/or implicit ALUA access type * and opteration. * * See spc4r17 section 6.4.2 Table 135 @@ -452,6 +452,7 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) struct se_device *dev = cmd->se_dev; u32 max_sectors; int have_tp = 0; + int opt, min; /* * Following spc3r22 section 6.5.3 Block Limits VPD page, when @@ -475,7 +476,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* * Set OPTIMAL TRANSFER LENGTH GRANULARITY */ - put_unaligned_be16(1, &buf[6]); + if (dev->transport->get_io_min && (min = dev->transport->get_io_min(dev))) + put_unaligned_be16(min / dev->dev_attrib.block_size, &buf[6]); + else + put_unaligned_be16(1, &buf[6]); /* * Set MAXIMUM TRANSFER LENGTH @@ -487,7 +491,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf) /* * Set OPTIMAL TRANSFER LENGTH */ - put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]); + if (dev->transport->get_io_opt && (opt = dev->transport->get_io_opt(dev))) + put_unaligned_be32(opt / dev->dev_attrib.block_size, &buf[12]); + else + put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]); /* * Exit now if we don't support TP. @@ -1250,7 +1257,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) *size = (cdb[3] << 8) + cdb[4]; /* - * Do implict HEAD_OF_QUEUE processing for INQUIRY. + * Do implicit HEAD_OF_QUEUE processing for INQUIRY. * See spc4r17 section 5.3 */ cmd->sam_task_attr = MSG_HEAD_TAG; @@ -1284,7 +1291,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size) cmd->execute_cmd = spc_emulate_report_luns; *size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9]; /* - * Do implict HEAD_OF_QUEUE processing for REPORT_LUNS + * Do implicit HEAD_OF_QUEUE processing for REPORT_LUNS * See spc4r17 section 5.3 */ cmd->sam_task_attr = MSG_HEAD_TAG; diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c index 9c642e02cba1..03538994d2f7 100644 --- a/drivers/target/target_core_stat.c +++ b/drivers/target/target_core_stat.c @@ -32,7 +32,6 @@ #include <linux/utsname.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> -#include <linux/blkdev.h> #include <linux/configfs.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> @@ -214,7 +213,8 @@ static ssize_t target_stat_scsi_tgt_dev_show_attr_resets( struct se_device *dev = container_of(sgrps, struct se_device, dev_stat_grps); - return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_resets)); } DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets); @@ -397,8 +397,8 @@ static ssize_t target_stat_scsi_lu_show_attr_num_cmds( container_of(sgrps, struct se_device, dev_stat_grps); /* scsiLuNumCommands */ - return snprintf(page, PAGE_SIZE, "%llu\n", - (unsigned long long)dev->num_cmds); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_cmds)); } DEV_STAT_SCSI_LU_ATTR_RO(num_cmds); @@ -409,7 +409,8 @@ static ssize_t target_stat_scsi_lu_show_attr_read_mbytes( container_of(sgrps, struct se_device, dev_stat_grps); /* scsiLuReadMegaBytes */ - return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20)); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->read_bytes) >> 20); } DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes); @@ -420,7 +421,8 @@ static ssize_t target_stat_scsi_lu_show_attr_write_mbytes( container_of(sgrps, struct se_device, dev_stat_grps); /* scsiLuWrittenMegaBytes */ - return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20)); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->write_bytes) >> 20); } DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes); @@ -431,7 +433,7 @@ static ssize_t target_stat_scsi_lu_show_attr_resets( container_of(sgrps, struct se_device, dev_stat_grps); /* scsiLuInResets */ - return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets); + return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_resets)); } DEV_STAT_SCSI_LU_ATTR_RO(resets); diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 250009909d49..70c638f730af 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -386,9 +386,7 @@ int core_tmr_lun_reset( pr_debug("LUN_RESET: SCSI-2 Released reservation\n"); } - spin_lock_irq(&dev->stats_lock); - dev->num_resets++; - spin_unlock_irq(&dev->stats_lock); + atomic_long_inc(&dev->num_resets); pr_debug("LUN_RESET: %s for [%s] Complete\n", (preempt_and_abort_list) ? "Preempt" : "TMR", diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index b9a6ec0aa5fe..f697f8baec54 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -116,6 +116,7 @@ struct se_node_acl *core_tpg_get_initiator_node_acl( return acl; } +EXPORT_SYMBOL(core_tpg_get_initiator_node_acl); /* core_tpg_add_node_to_devs(): * @@ -633,6 +634,13 @@ int core_tpg_set_initiator_node_tag( } EXPORT_SYMBOL(core_tpg_set_initiator_node_tag); +static void core_tpg_lun_ref_release(struct percpu_ref *ref) +{ + struct se_lun *lun = container_of(ref, struct se_lun, lun_ref); + + complete(&lun->lun_ref_comp); +} + static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg) { /* Set in core_dev_setup_virtual_lun0() */ @@ -646,15 +654,20 @@ static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg) atomic_set(&lun->lun_acl_count, 0); init_completion(&lun->lun_shutdown_comp); INIT_LIST_HEAD(&lun->lun_acl_list); - INIT_LIST_HEAD(&lun->lun_cmd_list); spin_lock_init(&lun->lun_acl_lock); - spin_lock_init(&lun->lun_cmd_lock); spin_lock_init(&lun->lun_sep_lock); + init_completion(&lun->lun_ref_comp); - ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev); + ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release); if (ret < 0) return ret; + ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev); + if (ret < 0) { + percpu_ref_cancel_init(&lun->lun_ref); + return ret; + } + return 0; } @@ -691,10 +704,9 @@ int core_tpg_register( atomic_set(&lun->lun_acl_count, 0); init_completion(&lun->lun_shutdown_comp); INIT_LIST_HEAD(&lun->lun_acl_list); - INIT_LIST_HEAD(&lun->lun_cmd_list); spin_lock_init(&lun->lun_acl_lock); - spin_lock_init(&lun->lun_cmd_lock); spin_lock_init(&lun->lun_sep_lock); + init_completion(&lun->lun_ref_comp); } se_tpg->se_tpg_type = se_tpg_type; @@ -815,10 +827,16 @@ int core_tpg_post_addlun( { int ret; - ret = core_dev_export(lun_ptr, tpg, lun); + ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release); if (ret < 0) return ret; + ret = core_dev_export(lun_ptr, tpg, lun); + if (ret < 0) { + percpu_ref_cancel_init(&lun->lun_ref); + return ret; + } + spin_lock(&tpg->tpg_lun_lock); lun->lun_access = lun_access; lun->lun_status = TRANSPORT_LUN_STATUS_ACTIVE; @@ -827,14 +845,6 @@ int core_tpg_post_addlun( return 0; } -static void core_tpg_shutdown_lun( - struct se_portal_group *tpg, - struct se_lun *lun) -{ - core_clear_lun_from_tpg(lun, tpg); - transport_clear_lun_from_sessions(lun); -} - struct se_lun *core_tpg_pre_dellun( struct se_portal_group *tpg, u32 unpacked_lun) @@ -869,7 +879,8 @@ int core_tpg_post_dellun( struct se_portal_group *tpg, struct se_lun *lun) { - core_tpg_shutdown_lun(tpg, lun); + core_clear_lun_from_tpg(lun, tpg); + transport_clear_lun_ref(lun); core_dev_unexport(lun->lun_se_dev, tpg, lun); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 81e945eefbbd..91953da0f623 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -28,7 +28,6 @@ #include <linux/string.h> #include <linux/timer.h> #include <linux/slab.h> -#include <linux/blkdev.h> #include <linux/spinlock.h> #include <linux/kthread.h> #include <linux/in.h> @@ -473,7 +472,7 @@ void transport_deregister_session(struct se_session *se_sess) pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n", se_tpg->se_tpg_tfo->get_fabric_name()); /* - * If last kref is dropping now for an explict NodeACL, awake sleeping + * If last kref is dropping now for an explicit NodeACL, awake sleeping * ->acl_free_comp caller to wakeup configfs se_node_acl->acl_group * removal context. */ @@ -515,23 +514,6 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists, if (write_pending) cmd->t_state = TRANSPORT_WRITE_PENDING; - /* - * Determine if IOCTL context caller in requesting the stopping of this - * command for LUN shutdown purposes. - */ - if (cmd->transport_state & CMD_T_LUN_STOP) { - pr_debug("%s:%d CMD_T_LUN_STOP for ITT: 0x%08x\n", - __func__, __LINE__, cmd->se_tfo->get_task_tag(cmd)); - - cmd->transport_state &= ~CMD_T_ACTIVE; - if (remove_from_lists) - target_remove_from_state_list(cmd); - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - - complete(&cmd->transport_lun_stop_comp); - return 1; - } - if (remove_from_lists) { target_remove_from_state_list(cmd); @@ -585,15 +567,11 @@ static int transport_cmd_check_stop_to_fabric(struct se_cmd *cmd) static void transport_lun_remove_cmd(struct se_cmd *cmd) { struct se_lun *lun = cmd->se_lun; - unsigned long flags; - if (!lun) + if (!lun || !cmd->lun_ref_active) return; - spin_lock_irqsave(&lun->lun_cmd_lock, flags); - if (!list_empty(&cmd->se_lun_node)) - list_del_init(&cmd->se_lun_node); - spin_unlock_irqrestore(&lun->lun_cmd_lock, flags); + percpu_ref_put(&lun->lun_ref); } void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) @@ -668,7 +646,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) cmd->transport_state |= CMD_T_FAILED; /* - * Check for case where an explict ABORT_TASK has been received + * Check for case where an explicit ABORT_TASK has been received * and transport_wait_for_tasks() will be waiting for completion.. */ if (cmd->transport_state & CMD_T_ABORTED && @@ -1092,13 +1070,10 @@ void transport_init_se_cmd( int task_attr, unsigned char *sense_buffer) { - INIT_LIST_HEAD(&cmd->se_lun_node); INIT_LIST_HEAD(&cmd->se_delayed_node); INIT_LIST_HEAD(&cmd->se_qf_node); INIT_LIST_HEAD(&cmd->se_cmd_list); INIT_LIST_HEAD(&cmd->state_list); - init_completion(&cmd->transport_lun_fe_stop_comp); - init_completion(&cmd->transport_lun_stop_comp); init_completion(&cmd->t_transport_stop_comp); init_completion(&cmd->cmd_wait_comp); init_completion(&cmd->task_stop_comp); @@ -1719,29 +1694,14 @@ void target_execute_cmd(struct se_cmd *cmd) /* * If the received CDB has aleady been aborted stop processing it here. */ - if (transport_check_aborted_status(cmd, 1)) { - complete(&cmd->transport_lun_stop_comp); + if (transport_check_aborted_status(cmd, 1)) return; - } /* - * Determine if IOCTL context caller in requesting the stopping of this - * command for LUN shutdown purposes. - */ - spin_lock_irq(&cmd->t_state_lock); - if (cmd->transport_state & CMD_T_LUN_STOP) { - pr_debug("%s:%d CMD_T_LUN_STOP for ITT: 0x%08x\n", - __func__, __LINE__, cmd->se_tfo->get_task_tag(cmd)); - - cmd->transport_state &= ~CMD_T_ACTIVE; - spin_unlock_irq(&cmd->t_state_lock); - complete(&cmd->transport_lun_stop_comp); - return; - } - /* * Determine if frontend context caller is requesting the stopping of * this command for frontend exceptions. */ + spin_lock_irq(&cmd->t_state_lock); if (cmd->transport_state & CMD_T_STOP) { pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n", __func__, __LINE__, @@ -2404,164 +2364,23 @@ void target_wait_for_sess_cmds(struct se_session *se_sess) } EXPORT_SYMBOL(target_wait_for_sess_cmds); -/* transport_lun_wait_for_tasks(): - * - * Called from ConfigFS context to stop the passed struct se_cmd to allow - * an struct se_lun to be successfully shutdown. - */ -static int transport_lun_wait_for_tasks(struct se_cmd *cmd, struct se_lun *lun) -{ - unsigned long flags; - int ret = 0; - - /* - * If the frontend has already requested this struct se_cmd to - * be stopped, we can safely ignore this struct se_cmd. - */ - spin_lock_irqsave(&cmd->t_state_lock, flags); - if (cmd->transport_state & CMD_T_STOP) { - cmd->transport_state &= ~CMD_T_LUN_STOP; - - pr_debug("ConfigFS ITT[0x%08x] - CMD_T_STOP, skipping\n", - cmd->se_tfo->get_task_tag(cmd)); - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - transport_cmd_check_stop(cmd, false, false); - return -EPERM; - } - cmd->transport_state |= CMD_T_LUN_FE_STOP; - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - - // XXX: audit task_flags checks. - spin_lock_irqsave(&cmd->t_state_lock, flags); - if ((cmd->transport_state & CMD_T_BUSY) && - (cmd->transport_state & CMD_T_SENT)) { - if (!target_stop_cmd(cmd, &flags)) - ret++; - } - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - - pr_debug("ConfigFS: cmd: %p stop tasks ret:" - " %d\n", cmd, ret); - if (!ret) { - pr_debug("ConfigFS: ITT[0x%08x] - stopping cmd....\n", - cmd->se_tfo->get_task_tag(cmd)); - wait_for_completion(&cmd->transport_lun_stop_comp); - pr_debug("ConfigFS: ITT[0x%08x] - stopped cmd....\n", - cmd->se_tfo->get_task_tag(cmd)); - } - - return 0; -} - -static void __transport_clear_lun_from_sessions(struct se_lun *lun) -{ - struct se_cmd *cmd = NULL; - unsigned long lun_flags, cmd_flags; - /* - * Do exception processing and return CHECK_CONDITION status to the - * Initiator Port. - */ - spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags); - while (!list_empty(&lun->lun_cmd_list)) { - cmd = list_first_entry(&lun->lun_cmd_list, - struct se_cmd, se_lun_node); - list_del_init(&cmd->se_lun_node); - - spin_lock(&cmd->t_state_lock); - pr_debug("SE_LUN[%d] - Setting cmd->transport" - "_lun_stop for ITT: 0x%08x\n", - cmd->se_lun->unpacked_lun, - cmd->se_tfo->get_task_tag(cmd)); - cmd->transport_state |= CMD_T_LUN_STOP; - spin_unlock(&cmd->t_state_lock); - - spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags); - - if (!cmd->se_lun) { - pr_err("ITT: 0x%08x, [i,t]_state: %u/%u\n", - cmd->se_tfo->get_task_tag(cmd), - cmd->se_tfo->get_cmd_state(cmd), cmd->t_state); - BUG(); - } - /* - * If the Storage engine still owns the iscsi_cmd_t, determine - * and/or stop its context. - */ - pr_debug("SE_LUN[%d] - ITT: 0x%08x before transport" - "_lun_wait_for_tasks()\n", cmd->se_lun->unpacked_lun, - cmd->se_tfo->get_task_tag(cmd)); - - if (transport_lun_wait_for_tasks(cmd, cmd->se_lun) < 0) { - spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags); - continue; - } - - pr_debug("SE_LUN[%d] - ITT: 0x%08x after transport_lun" - "_wait_for_tasks(): SUCCESS\n", - cmd->se_lun->unpacked_lun, - cmd->se_tfo->get_task_tag(cmd)); - - spin_lock_irqsave(&cmd->t_state_lock, cmd_flags); - if (!(cmd->transport_state & CMD_T_DEV_ACTIVE)) { - spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags); - goto check_cond; - } - cmd->transport_state &= ~CMD_T_DEV_ACTIVE; - target_remove_from_state_list(cmd); - spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags); - - /* - * The Storage engine stopped this struct se_cmd before it was - * send to the fabric frontend for delivery back to the - * Initiator Node. Return this SCSI CDB back with an - * CHECK_CONDITION status. - */ -check_cond: - transport_send_check_condition_and_sense(cmd, - TCM_NON_EXISTENT_LUN, 0); - /* - * If the fabric frontend is waiting for this iscsi_cmd_t to - * be released, notify the waiting thread now that LU has - * finished accessing it. - */ - spin_lock_irqsave(&cmd->t_state_lock, cmd_flags); - if (cmd->transport_state & CMD_T_LUN_FE_STOP) { - pr_debug("SE_LUN[%d] - Detected FE stop for" - " struct se_cmd: %p ITT: 0x%08x\n", - lun->unpacked_lun, - cmd, cmd->se_tfo->get_task_tag(cmd)); - - spin_unlock_irqrestore(&cmd->t_state_lock, - cmd_flags); - transport_cmd_check_stop(cmd, false, false); - complete(&cmd->transport_lun_fe_stop_comp); - spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags); - continue; - } - pr_debug("SE_LUN[%d] - ITT: 0x%08x finished processing\n", - lun->unpacked_lun, cmd->se_tfo->get_task_tag(cmd)); - - spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags); - spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags); - } - spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags); -} - -static int transport_clear_lun_thread(void *p) +static int transport_clear_lun_ref_thread(void *p) { struct se_lun *lun = p; - __transport_clear_lun_from_sessions(lun); + percpu_ref_kill(&lun->lun_ref); + + wait_for_completion(&lun->lun_ref_comp); complete(&lun->lun_shutdown_comp); return 0; } -int transport_clear_lun_from_sessions(struct se_lun *lun) +int transport_clear_lun_ref(struct se_lun *lun) { struct task_struct *kt; - kt = kthread_run(transport_clear_lun_thread, lun, + kt = kthread_run(transport_clear_lun_ref_thread, lun, "tcm_cl_%u", lun->unpacked_lun); if (IS_ERR(kt)) { pr_err("Unable to start clear_lun thread\n"); @@ -2595,43 +2414,6 @@ bool transport_wait_for_tasks(struct se_cmd *cmd) spin_unlock_irqrestore(&cmd->t_state_lock, flags); return false; } - /* - * If we are already stopped due to an external event (ie: LUN shutdown) - * sleep until the connection can have the passed struct se_cmd back. - * The cmd->transport_lun_stopped_sem will be upped by - * transport_clear_lun_from_sessions() once the ConfigFS context caller - * has completed its operation on the struct se_cmd. - */ - if (cmd->transport_state & CMD_T_LUN_STOP) { - pr_debug("wait_for_tasks: Stopping" - " wait_for_completion(&cmd->t_tasktransport_lun_fe" - "_stop_comp); for ITT: 0x%08x\n", - cmd->se_tfo->get_task_tag(cmd)); - /* - * There is a special case for WRITES where a FE exception + - * LUN shutdown means ConfigFS context is still sleeping on - * transport_lun_stop_comp in transport_lun_wait_for_tasks(). - * We go ahead and up transport_lun_stop_comp just to be sure - * here. - */ - spin_unlock_irqrestore(&cmd->t_state_lock, flags); - complete(&cmd->transport_lun_stop_comp); - wait_for_completion(&cmd->transport_lun_fe_stop_comp); - spin_lock_irqsave(&cmd->t_state_lock, flags); - - target_remove_from_state_list(cmd); - /* - * At this point, the frontend who was the originator of this - * struct se_cmd, now owns the structure and can be released through - * normal means below. - */ - pr_debug("wait_for_tasks: Stopped" - " wait_for_completion(&cmd->t_tasktransport_lun_fe_" - "stop_comp); for ITT: 0x%08x\n", - cmd->se_tfo->get_task_tag(cmd)); - - cmd->transport_state &= ~CMD_T_LUN_STOP; - } if (!(cmd->transport_state & CMD_T_ACTIVE)) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); @@ -2910,6 +2692,7 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status) cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd)); cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS; + cmd->scsi_status = SAM_STAT_TASK_ABORTED; trace_target_cmd_complete(cmd); cmd->se_tfo->queue_status(cmd); @@ -2938,6 +2721,7 @@ void transport_send_task_abort(struct se_cmd *cmd) if (cmd->se_tfo->write_pending_status(cmd) != 0) { cmd->transport_state |= CMD_T_ABORTED; smp_mb__after_atomic_inc(); + return; } } cmd->scsi_status = SAM_STAT_TASK_ABORTED; diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h index 0204952fe4d3..be912b36daae 100644 --- a/drivers/target/target_core_ua.h +++ b/drivers/target/target_core_ua.h @@ -19,7 +19,7 @@ #define ASCQ_2AH_RESERVATIONS_RELEASED 0x04 #define ASCQ_2AH_REGISTRATIONS_PREEMPTED 0x05 #define ASCQ_2AH_ASYMMETRIC_ACCESS_STATE_CHANGED 0x06 -#define ASCQ_2AH_IMPLICT_ASYMMETRIC_ACCESS_STATE_TRANSITION_FAILED 0x07 +#define ASCQ_2AH_IMPLICIT_ASYMMETRIC_ACCESS_STATE_TRANSITION_FAILED 0x07 #define ASCQ_2AH_PRIORITY_CHANGED 0x08 #define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS 0x09 diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index 474cd44fac14..6b88a9958f61 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -405,9 +405,6 @@ static void xcopy_pt_release_cmd(struct se_cmd *se_cmd) struct xcopy_pt_cmd *xpt_cmd = container_of(se_cmd, struct xcopy_pt_cmd, se_cmd); - if (xpt_cmd->remote_port) - kfree(se_cmd->se_lun); - kfree(xpt_cmd); } @@ -572,22 +569,10 @@ static int target_xcopy_init_pt_lun( return 0; } - pt_cmd->se_lun = kzalloc(sizeof(struct se_lun), GFP_KERNEL); - if (!pt_cmd->se_lun) { - pr_err("Unable to allocate pt_cmd->se_lun\n"); - return -ENOMEM; - } - init_completion(&pt_cmd->se_lun->lun_shutdown_comp); - INIT_LIST_HEAD(&pt_cmd->se_lun->lun_cmd_list); - INIT_LIST_HEAD(&pt_cmd->se_lun->lun_acl_list); - spin_lock_init(&pt_cmd->se_lun->lun_acl_lock); - spin_lock_init(&pt_cmd->se_lun->lun_cmd_lock); - spin_lock_init(&pt_cmd->se_lun->lun_sep_lock); - + pt_cmd->se_lun = &se_dev->xcopy_lun; pt_cmd->se_dev = se_dev; pr_debug("Setup emulated se_dev: %p from se_dev\n", pt_cmd->se_dev); - pt_cmd->se_lun->lun_se_dev = se_dev; pt_cmd->se_cmd_flags |= SCF_SE_LUN_CMD | SCF_CMD_XCOPY_PASSTHROUGH; pr_debug("Setup emulated se_dev: %p to pt_cmd->se_lun->lun_se_dev\n", @@ -658,8 +643,6 @@ static int target_xcopy_setup_pt_cmd( return 0; out: - if (remote_port == true) - kfree(cmd->se_lun); return ret; } diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index 0dd54a44abcf..752863acecb8 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -22,6 +22,7 @@ #define FT_NAMELEN 32 /* length of ASCII WWPNs including pad */ #define FT_TPG_NAMELEN 32 /* max length of TPG name */ #define FT_LUN_NAMELEN 32 /* max length of LUN name */ +#define TCM_FC_DEFAULT_TAGS 512 /* tags used for per-session preallocation */ struct ft_transport_id { __u8 format; diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index 0e5a1caed176..479ec5621a4e 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -28,6 +28,7 @@ #include <linux/configfs.h> #include <linux/ctype.h> #include <linux/hash.h> +#include <linux/percpu_ida.h> #include <asm/unaligned.h> #include <scsi/scsi.h> #include <scsi/scsi_host.h> @@ -89,16 +90,18 @@ static void ft_free_cmd(struct ft_cmd *cmd) { struct fc_frame *fp; struct fc_lport *lport; + struct se_session *se_sess; if (!cmd) return; + se_sess = cmd->sess->se_sess; fp = cmd->req_frame; lport = fr_dev(fp); if (fr_seq(fp)) lport->tt.seq_release(fr_seq(fp)); fc_frame_free(fp); + percpu_ida_free(&se_sess->sess_tag_pool, cmd->se_cmd.map_tag); ft_sess_put(cmd->sess); /* undo get from lookup at recv */ - kfree(cmd); } void ft_release_cmd(struct se_cmd *se_cmd) @@ -432,14 +435,21 @@ static void ft_recv_cmd(struct ft_sess *sess, struct fc_frame *fp) { struct ft_cmd *cmd; struct fc_lport *lport = sess->tport->lport; + struct se_session *se_sess = sess->se_sess; + int tag; - cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC); - if (!cmd) + tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC); + if (tag < 0) goto busy; + + cmd = &((struct ft_cmd *)se_sess->sess_cmd_map)[tag]; + memset(cmd, 0, sizeof(struct ft_cmd)); + + cmd->se_cmd.map_tag = tag; cmd->sess = sess; cmd->seq = lport->tt.seq_assign(lport, fp); if (!cmd->seq) { - kfree(cmd); + percpu_ida_free(&se_sess->sess_tag_pool, tag); goto busy; } cmd->req_frame = fp; /* hold frame during cmd */ diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index 4e0050840a72..c6932fb53a8d 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -571,16 +571,16 @@ int ft_register_configfs(void) /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = ft_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = ft_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = ft_nacl_base_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; /* * register the fabric for use within TCM */ diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 4859505ae2ed..ae52c08dad09 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -210,7 +210,8 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id, if (!sess) return NULL; - sess->se_sess = transport_init_session(); + sess->se_sess = transport_init_session_tags(TCM_FC_DEFAULT_TAGS, + sizeof(struct ft_cmd)); if (IS_ERR(sess->se_sess)) { kfree(sess); return NULL; diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 03a567199bbe..f1d511a9475b 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1608,15 +1608,17 @@ exit: EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name); #ifdef CONFIG_NET +static const struct genl_multicast_group thermal_event_mcgrps[] = { + { .name = THERMAL_GENL_MCAST_GROUP_NAME, }, +}; + static struct genl_family thermal_event_genl_family = { .id = GENL_ID_GENERATE, .name = THERMAL_GENL_FAMILY_NAME, .version = THERMAL_GENL_VERSION, .maxattr = THERMAL_GENL_ATTR_MAX, -}; - -static struct genl_multicast_group thermal_event_mcgrp = { - .name = THERMAL_GENL_MCAST_GROUP_NAME, + .mcgrps = thermal_event_mcgrps, + .n_mcgrps = ARRAY_SIZE(thermal_event_mcgrps), }; int thermal_generate_netlink_event(struct thermal_zone_device *tz, @@ -1677,7 +1679,8 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz, return result; } - result = genlmsg_multicast(skb, 0, thermal_event_mcgrp.id, GFP_ATOMIC); + result = genlmsg_multicast(&thermal_event_genl_family, skb, 0, + 0, GFP_ATOMIC); if (result) dev_err(&tz->device, "Failed to send netlink event:%d", result); @@ -1687,17 +1690,7 @@ EXPORT_SYMBOL_GPL(thermal_generate_netlink_event); static int genetlink_init(void) { - int result; - - result = genl_register_family(&thermal_event_genl_family); - if (result) - return result; - - result = genl_register_mc_group(&thermal_event_genl_family, - &thermal_event_mcgrp); - if (result) - genl_unregister_family(&thermal_event_genl_family); - return result; + return genl_register_family(&thermal_event_genl_family); } static void genetlink_exit(void) diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index 537750261aaa..7d8103cd3e2e 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1433,7 +1433,7 @@ static void work_fn_rx(struct work_struct *work) desc = s->desc_rx[new]; if (dma_async_is_tx_complete(s->chan_rx, s->active_rx, NULL, NULL) != - DMA_SUCCESS) { + DMA_COMPLETE) { /* Handle incomplete DMA receive */ struct dma_chan *chan = s->chan_rx; struct shdma_desc *sh_desc = container_of(desc, diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 06cec635e703..a7c04e24ca48 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -5501,6 +5501,6 @@ acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, if (!hub) return NULL; - return DEVICE_ACPI_HANDLE(&hub->ports[port1 - 1]->dev); + return ACPI_HANDLE(&hub->ports[port1 - 1]->dev); } #endif diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index 255c14464bf2..4e243c37f17f 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -173,7 +173,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) } /* root hub's parent is the usb hcd. */ - parent_handle = DEVICE_ACPI_HANDLE(dev->parent); + parent_handle = ACPI_HANDLE(dev->parent); *handle = acpi_get_child(parent_handle, udev->portnum); if (!*handle) return -ENODEV; @@ -194,7 +194,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) raw_port_num = usb_hcd_find_raw_port_number(hcd, port_num); - *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev), + *handle = acpi_get_child(ACPI_HANDLE(&udev->dev), raw_port_num); if (!*handle) return -ENODEV; diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c index eccea1df702d..6c3d7950d2a9 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.c +++ b/drivers/usb/gadget/tcm_usb_gadget.c @@ -1923,15 +1923,15 @@ static int usbg_register_configfs(void) } fabric->tf_ops = usbg_ops; - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = usbg_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = usbg_base_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = usbg_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = usbg_base_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; ret = target_fabric_configfs_register(fabric); if (ret < 0) { printk(KERN_ERR "target_fabric_configfs_register() failed" diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index e663921eebb6..f175629513ed 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -2168,15 +2168,15 @@ static int tcm_vhost_register_configfs(void) /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ - TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_vhost_wwn_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_vhost_tpg_attrs; - TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; - TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_vhost_wwn_attrs; + fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_vhost_tpg_attrs; + fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL; /* * Register the fabric for use within TCM */ diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 36db5d98dd2f..fb80d68f4d33 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -10,6 +10,8 @@ * published by the Free Software Foundation. */ +#include <linux/gpio.h> +#include <linux/of_gpio.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -19,6 +21,7 @@ #include <linux/err.h> #include <linux/pwm.h> #include <linux/pwm_backlight.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> struct pwm_bl_data { @@ -27,6 +30,11 @@ struct pwm_bl_data { unsigned int period; unsigned int lth_brightness; unsigned int *levels; + bool enabled; + struct regulator *power_supply; + int enable_gpio; + unsigned long enable_gpio_flags; + unsigned int scale; int (*notify)(struct device *, int brightness); void (*notify_after)(struct device *, @@ -35,11 +43,65 @@ struct pwm_bl_data { void (*exit)(struct device *); }; +static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness) +{ + int err; + + if (pb->enabled) + return; + + err = regulator_enable(pb->power_supply); + if (err < 0) + dev_err(pb->dev, "failed to enable power supply\n"); + + if (gpio_is_valid(pb->enable_gpio)) { + if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW) + gpio_set_value(pb->enable_gpio, 0); + else + gpio_set_value(pb->enable_gpio, 1); + } + + pwm_enable(pb->pwm); + pb->enabled = true; +} + +static void pwm_backlight_power_off(struct pwm_bl_data *pb) +{ + if (!pb->enabled) + return; + + pwm_config(pb->pwm, 0, pb->period); + pwm_disable(pb->pwm); + + if (gpio_is_valid(pb->enable_gpio)) { + if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW) + gpio_set_value(pb->enable_gpio, 1); + else + gpio_set_value(pb->enable_gpio, 0); + } + + regulator_disable(pb->power_supply); + pb->enabled = false; +} + +static int compute_duty_cycle(struct pwm_bl_data *pb, int brightness) +{ + unsigned int lth = pb->lth_brightness; + int duty_cycle; + + if (pb->levels) + duty_cycle = pb->levels[brightness]; + else + duty_cycle = brightness; + + return (duty_cycle * (pb->period - lth) / pb->scale) + lth; +} + static int pwm_backlight_update_status(struct backlight_device *bl) { struct pwm_bl_data *pb = bl_get_data(bl); int brightness = bl->props.brightness; - int max = bl->props.max_brightness; + int duty_cycle; if (bl->props.power != FB_BLANK_UNBLANK || bl->props.fb_blank != FB_BLANK_UNBLANK || @@ -49,24 +111,12 @@ static int pwm_backlight_update_status(struct backlight_device *bl) if (pb->notify) brightness = pb->notify(pb->dev, brightness); - if (brightness == 0) { - pwm_config(pb->pwm, 0, pb->period); - pwm_disable(pb->pwm); - } else { - int duty_cycle; - - if (pb->levels) { - duty_cycle = pb->levels[brightness]; - max = pb->levels[max]; - } else { - duty_cycle = brightness; - } - - duty_cycle = pb->lth_brightness + - (duty_cycle * (pb->period - pb->lth_brightness) / max); + if (brightness > 0) { + duty_cycle = compute_duty_cycle(pb, brightness); pwm_config(pb->pwm, duty_cycle, pb->period); - pwm_enable(pb->pwm); - } + pwm_backlight_power_on(pb, brightness); + } else + pwm_backlight_power_off(pb); if (pb->notify_after) pb->notify_after(pb->dev, brightness); @@ -98,6 +148,7 @@ static int pwm_backlight_parse_dt(struct device *dev, struct platform_pwm_backlight_data *data) { struct device_node *node = dev->of_node; + enum of_gpio_flags flags; struct property *prop; int length; u32 value; @@ -138,11 +189,13 @@ static int pwm_backlight_parse_dt(struct device *dev, data->max_brightness--; } - /* - * TODO: Most users of this driver use a number of GPIOs to control - * backlight power. Support for specifying these needs to be - * added. - */ + data->enable_gpio = of_get_named_gpio_flags(node, "enable-gpios", 0, + &flags); + if (data->enable_gpio == -EPROBE_DEFER) + return -EPROBE_DEFER; + + if (gpio_is_valid(data->enable_gpio) && (flags & OF_GPIO_ACTIVE_LOW)) + data->enable_gpio_flags |= PWM_BACKLIGHT_GPIO_ACTIVE_LOW; return 0; } @@ -168,7 +221,6 @@ static int pwm_backlight_probe(struct platform_device *pdev) struct backlight_properties props; struct backlight_device *bl; struct pwm_bl_data *pb; - unsigned int max; int ret; if (!data) { @@ -195,16 +247,46 @@ static int pwm_backlight_probe(struct platform_device *pdev) } if (data->levels) { - max = data->levels[data->max_brightness]; + unsigned int i; + + for (i = 0; i <= data->max_brightness; i++) + if (data->levels[i] > pb->scale) + pb->scale = data->levels[i]; + pb->levels = data->levels; } else - max = data->max_brightness; + pb->scale = data->max_brightness; + pb->enable_gpio = data->enable_gpio; + pb->enable_gpio_flags = data->enable_gpio_flags; pb->notify = data->notify; pb->notify_after = data->notify_after; pb->check_fb = data->check_fb; pb->exit = data->exit; pb->dev = &pdev->dev; + pb->enabled = false; + + if (gpio_is_valid(pb->enable_gpio)) { + unsigned long flags; + + if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW) + flags = GPIOF_OUT_INIT_HIGH; + else + flags = GPIOF_OUT_INIT_LOW; + + ret = gpio_request_one(pb->enable_gpio, flags, "enable"); + if (ret < 0) { + dev_err(&pdev->dev, "failed to request GPIO#%d: %d\n", + pb->enable_gpio, ret); + goto err_alloc; + } + } + + pb->power_supply = devm_regulator_get(&pdev->dev, "power"); + if (IS_ERR(pb->power_supply)) { + ret = PTR_ERR(pb->power_supply); + goto err_gpio; + } pb->pwm = devm_pwm_get(&pdev->dev, NULL); if (IS_ERR(pb->pwm)) { @@ -214,7 +296,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) if (IS_ERR(pb->pwm)) { dev_err(&pdev->dev, "unable to request legacy PWM\n"); ret = PTR_ERR(pb->pwm); - goto err_alloc; + goto err_gpio; } } @@ -229,7 +311,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) pwm_set_period(pb->pwm, data->pwm_period_ns); pb->period = pwm_get_period(pb->pwm); - pb->lth_brightness = data->lth_brightness * (pb->period / max); + pb->lth_brightness = data->lth_brightness * (pb->period / pb->scale); memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_RAW; @@ -239,7 +321,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) if (IS_ERR(bl)) { dev_err(&pdev->dev, "failed to register backlight\n"); ret = PTR_ERR(bl); - goto err_alloc; + goto err_gpio; } if (data->dft_brightness > data->max_brightness) { @@ -255,6 +337,9 @@ static int pwm_backlight_probe(struct platform_device *pdev) platform_set_drvdata(pdev, bl); return 0; +err_gpio: + if (gpio_is_valid(pb->enable_gpio)) + gpio_free(pb->enable_gpio); err_alloc: if (data->exit) data->exit(&pdev->dev); @@ -267,10 +352,11 @@ static int pwm_backlight_remove(struct platform_device *pdev) struct pwm_bl_data *pb = bl_get_data(bl); backlight_device_unregister(bl); - pwm_config(pb->pwm, 0, pb->period); - pwm_disable(pb->pwm); + pwm_backlight_power_off(pb); + if (pb->exit) pb->exit(&pdev->dev); + return 0; } @@ -282,10 +368,12 @@ static int pwm_backlight_suspend(struct device *dev) if (pb->notify) pb->notify(pb->dev, 0); - pwm_config(pb->pwm, 0, pb->period); - pwm_disable(pb->pwm); + + pwm_backlight_power_off(pb); + if (pb->notify_after) pb->notify_after(pb->dev, 0); + return 0; } @@ -294,12 +382,19 @@ static int pwm_backlight_resume(struct device *dev) struct backlight_device *bl = dev_get_drvdata(dev); backlight_update_status(bl); + return 0; } #endif -static SIMPLE_DEV_PM_OPS(pwm_backlight_pm_ops, pwm_backlight_suspend, - pwm_backlight_resume); +static const struct dev_pm_ops pwm_backlight_pm_ops = { +#ifdef CONFIG_PM_SLEEP + .suspend = pwm_backlight_suspend, + .resume = pwm_backlight_resume, + .poweroff = pwm_backlight_suspend, + .restore = pwm_backlight_resume, +#endif +}; static struct platform_driver pwm_backlight_driver = { .driver = { @@ -317,4 +412,3 @@ module_platform_driver(pwm_backlight_driver); MODULE_DESCRIPTION("PWM based Backlight Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:pwm-backlight"); - diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c index 00b3a52c1d68..cee9602f9a7b 100644 --- a/drivers/video/exynos/exynos_mipi_dsi.c +++ b/drivers/video/exynos/exynos_mipi_dsi.c @@ -141,7 +141,6 @@ static int exynos_mipi_dsi_early_blank_mode(struct mipi_dsim_device *dsim, static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power) { - struct platform_device *pdev = to_platform_device(dsim->dev); struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv; struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev; diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 6df632e0bb55..5be6e919f785 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -392,6 +392,25 @@ config RETU_WATCHDOG To compile this driver as a module, choose M here: the module will be called retu_wdt. +config MOXART_WDT + tristate "MOXART watchdog" + depends on ARCH_MOXART + help + Say Y here to include Watchdog timer support for the watchdog + existing on the MOXA ART SoC series platforms. + + To compile this driver as a module, choose M here: the + module will be called moxart_wdt. + +config SIRFSOC_WATCHDOG + tristate "SiRFSOC watchdog" + depends on ARCH_SIRF + select WATCHDOG_CORE + default y + help + Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When + the watchdog triggers the system will be reset. + # AVR32 Architecture config AT32AP700X_WDT @@ -866,6 +885,7 @@ config VIA_WDT config W83627HF_WDT tristate "W83627HF/W83627DHG Watchdog Timer" depends on X86 + select WATCHDOG_CORE ---help--- This is the driver for the hardware watchdog on the W83627HF chipset as used in Advantech PC-9578 and Tyan S2721-533 motherboards @@ -1125,6 +1145,13 @@ config LANTIQ_WDT help Hardware driver for the Lantiq SoC Watchdog Timer. +config RALINK_WDT + tristate "Ralink SoC watchdog" + select WATCHDOG_CORE + depends on RALINK + help + Hardware driver for the Ralink SoC Watchdog Timer. + # PARISC Architecture # POWERPC Architecture diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 8c7b8bcbbdc5..91bd95a64baf 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -55,6 +55,8 @@ obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o +obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o +obj-$(CONFIG_SIRFSOC_WATCHDOG) += sirfsoc_wdt.o # AVR32 Architecture obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o @@ -134,6 +136,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o +obj-$(CONFIG_RALINK_WDT) += rt2880_wdt.o # PARISC Architecture diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index 24a517777fa0..5cf1621def9c 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -60,8 +60,7 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/fs.h> /* For file operations */ #include <linux/ioport.h> /* For io-port access */ @@ -337,4 +336,3 @@ module_exit(acq_exit); MODULE_AUTHOR("David Woodhouse"); MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index cc6702fc5268..a8961addc59c 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -345,4 +345,3 @@ module_exit(advwdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>"); MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c index 41b84936a521..fbb7b94cabfd 100644 --- a/drivers/watchdog/alim1535_wdt.c +++ b/drivers/watchdog/alim1535_wdt.c @@ -452,4 +452,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("ALi M1535 PMU Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c index 5eee55012e33..12f0b762b528 100644 --- a/drivers/watchdog/alim7101_wdt.c +++ b/drivers/watchdog/alim7101_wdt.c @@ -425,4 +425,3 @@ MODULE_DEVICE_TABLE(pci, alim7101_pci_tbl); MODULE_AUTHOR("Steve Hill"); MODULE_DESCRIPTION("ALi M7101 PMU Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c index b3709f9cf5be..3a996576343a 100644 --- a/drivers/watchdog/ar7_wdt.c +++ b/drivers/watchdog/ar7_wdt.c @@ -46,7 +46,6 @@ MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>"); MODULE_DESCRIPTION(LONGNAME); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int margin = 60; module_param(margin, int, 0); diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c index b178e717ef09..afe7d17e6776 100644 --- a/drivers/watchdog/at32ap700x_wdt.c +++ b/drivers/watchdog/at32ap700x_wdt.c @@ -434,4 +434,3 @@ module_platform_driver_probe(at32_wdt_driver, at32_wdt_probe); MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>"); MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c index 1c75260b987c..dee6cc21d270 100644 --- a/drivers/watchdog/at91rm9200_wdt.c +++ b/drivers/watchdog/at91rm9200_wdt.c @@ -269,7 +269,7 @@ static struct platform_driver at91wdt_driver = { .driver = { .name = "at91_wdt", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(at91_wdt_dt_ids), + .of_match_table = at91_wdt_dt_ids, }, }; @@ -297,5 +297,4 @@ module_exit(at91_wdt_exit); MODULE_AUTHOR("Andrew Victor"); MODULE_DESCRIPTION("Watchdog driver for Atmel AT91RM9200"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:at91_wdt"); diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c index 37cb09b27b63..9fa1f69dac13 100644 --- a/drivers/watchdog/ath79_wdt.c +++ b/drivers/watchdog/ath79_wdt.c @@ -329,4 +329,3 @@ MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org"); MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:" DRIVER_NAME); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c index 61566fc47f84..a6a2cebb2587 100644 --- a/drivers/watchdog/bcm2835_wdt.c +++ b/drivers/watchdog/bcm2835_wdt.c @@ -186,4 +186,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>"); MODULE_DESCRIPTION("Driver for Broadcom BCM2835 watchdog timer"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c index a14a58d9d110..4eb188b87f8e 100644 --- a/drivers/watchdog/bcm63xx_wdt.c +++ b/drivers/watchdog/bcm63xx_wdt.c @@ -317,5 +317,4 @@ MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>"); MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:bcm63xx-wdt"); diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c index 5d36d6fb4969..a3b6a5b30f9f 100644 --- a/drivers/watchdog/bfin_wdt.c +++ b/drivers/watchdog/bfin_wdt.c @@ -465,7 +465,6 @@ module_exit(bfin_wdt_exit); MODULE_AUTHOR("Michele d'Amico, Mike Frysinger <vapier@gentoo.org>"); MODULE_DESCRIPTION("Blackfin Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(timeout, uint, 0); MODULE_PARM_DESC(timeout, diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c index f270bb7bc456..f7ae49edb518 100644 --- a/drivers/watchdog/cpu5wdt.c +++ b/drivers/watchdog/cpu5wdt.c @@ -289,7 +289,6 @@ MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>"); MODULE_DESCRIPTION("sma cpu5 watchdog driver"); MODULE_SUPPORTED_DEVICE("sma cpu5 watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(port, int, 0); MODULE_PARM_DESC(port, "base address of watchdog card, default is 0x91"); diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index bead7740c86a..dd625cca1ae5 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -267,5 +267,4 @@ MODULE_PARM_DESC(heartbeat, __MODULE_STRING(DEFAULT_HEARTBEAT)); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:watchdog"); diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c index e621098bf663..a46f5c7ee7ff 100644 --- a/drivers/watchdog/dw_wdt.c +++ b/drivers/watchdog/dw_wdt.c @@ -29,6 +29,7 @@ #include <linux/miscdevice.h> #include <linux/module.h> #include <linux/moduleparam.h> +#include <linux/of.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/spinlock.h> @@ -203,12 +204,12 @@ static long dw_wdt_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) switch (cmd) { case WDIOC_GETSUPPORT: - return copy_to_user((struct watchdog_info *)arg, &dw_wdt_ident, + return copy_to_user((void __user *)arg, &dw_wdt_ident, sizeof(dw_wdt_ident)) ? -EFAULT : 0; case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: - return put_user(0, (int *)arg); + return put_user(0, (int __user *)arg); case WDIOC_KEEPALIVE: dw_wdt_set_next_heartbeat(); @@ -252,17 +253,17 @@ static int dw_wdt_release(struct inode *inode, struct file *filp) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int dw_wdt_suspend(struct device *dev) { - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return 0; } static int dw_wdt_resume(struct device *dev) { - int err = clk_enable(dw_wdt.clk); + int err = clk_prepare_enable(dw_wdt.clk); if (err) return err; @@ -271,12 +272,9 @@ static int dw_wdt_resume(struct device *dev) return 0; } +#endif /* CONFIG_PM_SLEEP */ -static const struct dev_pm_ops dw_wdt_pm_ops = { - .suspend = dw_wdt_suspend, - .resume = dw_wdt_resume, -}; -#endif /* CONFIG_PM */ +static SIMPLE_DEV_PM_OPS(dw_wdt_pm_ops, dw_wdt_suspend, dw_wdt_resume); static const struct file_operations wdt_fops = { .owner = THIS_MODULE, @@ -309,7 +307,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev) if (IS_ERR(dw_wdt.clk)) return PTR_ERR(dw_wdt.clk); - ret = clk_enable(dw_wdt.clk); + ret = clk_prepare_enable(dw_wdt.clk); if (ret) return ret; @@ -326,7 +324,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev) return 0; out_disable_clk: - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return ret; } @@ -335,20 +333,27 @@ static int dw_wdt_drv_remove(struct platform_device *pdev) { misc_deregister(&dw_wdt_miscdev); - clk_disable(dw_wdt.clk); + clk_disable_unprepare(dw_wdt.clk); return 0; } +#ifdef CONFIG_OF +static const struct of_device_id dw_wdt_of_match[] = { + { .compatible = "snps,dw-wdt", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, dw_wdt_of_match); +#endif + static struct platform_driver dw_wdt_driver = { .probe = dw_wdt_drv_probe, .remove = dw_wdt_drv_remove, .driver = { .name = "dw_wdt", .owner = THIS_MODULE, -#ifdef CONFIG_PM + .of_match_table = of_match_ptr(dw_wdt_of_match), .pm = &dw_wdt_pm_ops, -#endif /* CONFIG_PM */ }, }; @@ -357,4 +362,3 @@ module_platform_driver(dw_wdt_driver); MODULE_AUTHOR("Jamie Iles"); MODULE_DESCRIPTION("Synopsys DesignWare Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c index e0574844c313..833e81311848 100644 --- a/drivers/watchdog/ep93xx_wdt.c +++ b/drivers/watchdog/ep93xx_wdt.c @@ -179,4 +179,3 @@ MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>," MODULE_DESCRIPTION("EP93xx Watchdog"); MODULE_LICENSE("GPL"); MODULE_VERSION(WDT_VERSION); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c index cd31b8a2a729..23ee53240c4c 100644 --- a/drivers/watchdog/eurotechwdt.c +++ b/drivers/watchdog/eurotechwdt.c @@ -477,4 +477,3 @@ module_exit(eurwdt_exit); MODULE_AUTHOR("Rodolfo Giometti"); MODULE_DESCRIPTION("Driver for Eurotech CPU-1220/1410 on board watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c index 3755833430dc..25beb30878d7 100644 --- a/drivers/watchdog/gef_wdt.c +++ b/drivers/watchdog/gef_wdt.c @@ -331,5 +331,4 @@ module_exit(gef_wdt_exit); MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>"); MODULE_DESCRIPTION("GE watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:gef_wdt"); diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c index fcd599d4e225..4a6ae84b42bc 100644 --- a/drivers/watchdog/geodewdt.c +++ b/drivers/watchdog/geodewdt.c @@ -297,4 +297,3 @@ module_exit(geodewdt_exit); MODULE_AUTHOR("Advanced Micro Devices, Inc"); MODULE_DESCRIPTION("Geode GX/LX Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 19f3c3fc65f4..45b979d9dd13 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -881,7 +881,6 @@ MODULE_AUTHOR("Tom Mingarelli"); MODULE_DESCRIPTION("hp watchdog driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(HPWDT_VERSION); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c index 2b2ea13d03ea..a72fe9361ddf 100644 --- a/drivers/watchdog/i6300esb.c +++ b/drivers/watchdog/i6300esb.c @@ -497,4 +497,3 @@ module_pci_driver(esb_driver); MODULE_AUTHOR("Ross Biro and David Härdeman"); MODULE_DESCRIPTION("Watchdog driver for Intel 6300ESB chipsets"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c index 6130321da387..04f8af65acfd 100644 --- a/drivers/watchdog/iTCO_wdt.c +++ b/drivers/watchdog/iTCO_wdt.c @@ -56,8 +56,6 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/fs.h> /* For file operations */ @@ -394,7 +392,7 @@ static int iTCO_wdt_probe(struct platform_device *dev) { int ret = -ENODEV; unsigned long val32; - struct lpc_ich_info *ich_info = dev->dev.platform_data; + struct lpc_ich_info *ich_info = dev_get_platdata(&dev->dev); if (!ich_info) goto out; @@ -582,5 +580,4 @@ MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRV_NAME); diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c index eb6b5cc98ec6..7ae36690c449 100644 --- a/drivers/watchdog/ib700wdt.c +++ b/drivers/watchdog/ib700wdt.c @@ -382,6 +382,5 @@ module_exit(ibwdt_exit); MODULE_AUTHOR("Charles Howes <chowes@vsol.net>"); MODULE_DESCRIPTION("IB700 SBC watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of ib700wdt.c */ diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c index bc3fb8fe89ab..db0a34460e57 100644 --- a/drivers/watchdog/ibmasr.c +++ b/drivers/watchdog/ibmasr.c @@ -419,4 +419,3 @@ MODULE_PARM_DESC(nowayout, MODULE_DESCRIPTION("IBM Automatic Server Restart driver"); MODULE_AUTHOR("Andrey Panin"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c index e24ef6a6e064..70a240297c6d 100644 --- a/drivers/watchdog/ie6xx_wdt.c +++ b/drivers/watchdog/ie6xx_wdt.c @@ -344,5 +344,4 @@ module_exit(ie6xx_wdt_exit); MODULE_AUTHOR("Alexander Stein <alexander.stein@systec-electronic.com>"); MODULE_DESCRIPTION("Intel Atom E6xx Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index 693ac3f4de5a..b4786bccc42c 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -322,6 +322,7 @@ static const struct of_device_id imx2_wdt_dt_ids[] = { { .compatible = "fsl,imx21-wdt", }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, imx2_wdt_dt_ids); static struct platform_driver imx2_wdt_driver = { .remove = __exit_p(imx2_wdt_remove), @@ -338,5 +339,4 @@ module_platform_driver_probe(imx2_wdt_driver, imx2_wdt_probe); MODULE_AUTHOR("Wolfram Sang"); MODULE_DESCRIPTION("Watchdog driver for IMX2 and later"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c index 6d90f7a2ce22..1b5c25a47b87 100644 --- a/drivers/watchdog/indydog.c +++ b/drivers/watchdog/indydog.c @@ -214,4 +214,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); MODULE_DESCRIPTION("Hardware Watchdog Device for SGI IP22"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c index 8ced25613956..e13e65e996aa 100644 --- a/drivers/watchdog/intel_scu_watchdog.c +++ b/drivers/watchdog/intel_scu_watchdog.c @@ -564,5 +564,4 @@ module_exit(intel_scu_watchdog_exit); MODULE_AUTHOR("Intel Corporation"); MODULE_DESCRIPTION("Intel SCU Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_VERSION(WDT_VER); diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c index d964faf1a250..b16013ffacc2 100644 --- a/drivers/watchdog/iop_wdt.c +++ b/drivers/watchdog/iop_wdt.c @@ -259,4 +259,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>"); MODULE_DESCRIPTION("iop watchdog timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c index f4cce6d66a55..41b3979a9d87 100644 --- a/drivers/watchdog/it8712f_wdt.c +++ b/drivers/watchdog/it8712f_wdt.c @@ -41,7 +41,6 @@ MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>"); MODULE_DESCRIPTION("IT8712F Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int max_units = 255; static int margin = 60; /* in seconds */ diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c index d3dcc6988b5f..e2bba68ae71e 100644 --- a/drivers/watchdog/it87_wdt.c +++ b/drivers/watchdog/it87_wdt.c @@ -772,4 +772,3 @@ module_exit(it87_wdt_exit); MODULE_AUTHOR("Oliver Schuster"); MODULE_DESCRIPTION("Hardware Watchdog Device Driver for IT87xx EC-LPC I/O"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c index 5580b4fff7fe..f20cc53ff719 100644 --- a/drivers/watchdog/ixp4xx_wdt.c +++ b/drivers/watchdog/ixp4xx_wdt.c @@ -208,5 +208,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c index d1afdf684c18..2de486a7eea1 100644 --- a/drivers/watchdog/jz4740_wdt.c +++ b/drivers/watchdog/jz4740_wdt.c @@ -222,5 +222,4 @@ module_platform_driver(jz4740_wdt_driver); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); MODULE_DESCRIPTION("jz4740 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:jz4740-wdt"); diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c index 5c3d4df63e68..a1a3638c579c 100644 --- a/drivers/watchdog/kempld_wdt.c +++ b/drivers/watchdog/kempld_wdt.c @@ -67,7 +67,7 @@ enum { PRESCALER_12, }; -const u32 kempld_prescaler[] = { +static const u32 kempld_prescaler[] = { [PRESCALER_21] = (1 << 21) - 1, [PRESCALER_17] = (1 << 17) - 1, [PRESCALER_12] = (1 << 12) - 1, @@ -361,7 +361,7 @@ static long kempld_wdt_ioctl(struct watchdog_device *wdd, unsigned int cmd, ret = kempld_wdt_keepalive(wdd); break; case WDIOC_GETPRETIMEOUT: - ret = put_user(wdt_data->pretimeout, (int *)arg); + ret = put_user(wdt_data->pretimeout, (int __user *)arg); break; } @@ -578,4 +578,3 @@ module_platform_driver(kempld_wdt_driver); MODULE_DESCRIPTION("KEM PLD Watchdog Driver"); MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c index dce9ecffd44a..40ca5594a336 100644 --- a/drivers/watchdog/ks8695_wdt.c +++ b/drivers/watchdog/ks8695_wdt.c @@ -323,5 +323,4 @@ module_exit(ks8695_wdt_exit); MODULE_AUTHOR("Andrew Victor"); MODULE_DESCRIPTION("Watchdog driver for KS8695"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:ks8695_wdt"); diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c index 088fd0c9d888..3b3148c764a3 100644 --- a/drivers/watchdog/lantiq_wdt.c +++ b/drivers/watchdog/lantiq_wdt.c @@ -249,4 +249,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_AUTHOR("John Crispin <blogic@openwrt.org>"); MODULE_DESCRIPTION("Lantiq SoC Watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c index 173494a681e6..da6fa2b68074 100644 --- a/drivers/watchdog/m54xx_wdt.c +++ b/drivers/watchdog/m54xx_wdt.c @@ -223,4 +223,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c index bf84f788e592..9826b59ef734 100644 --- a/drivers/watchdog/machzwd.c +++ b/drivers/watchdog/machzwd.c @@ -92,7 +92,6 @@ static unsigned short zf_readw(unsigned char port) MODULE_AUTHOR("Fernando Fuganti <fuganti@conectiva.com.br>"); MODULE_DESCRIPTION("MachZ ZF-Logic Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static bool nowayout = WATCHDOG_NOWAYOUT; module_param(nowayout, bool, 0); diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c index cc9d328086ed..6d4f3998e1f6 100644 --- a/drivers/watchdog/max63xx_wdt.c +++ b/drivers/watchdog/max63xx_wdt.c @@ -258,4 +258,3 @@ MODULE_PARM_DESC(nodelay, "(max6373/74 only, default=0)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c index 97d62ee50341..be86ea359eee 100644 --- a/drivers/watchdog/mixcomwd.c +++ b/drivers/watchdog/mixcomwd.c @@ -315,4 +315,3 @@ MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>"); MODULE_DESCRIPTION("MixCom Watchdog driver"); MODULE_VERSION(VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/moxart_wdt.c b/drivers/watchdog/moxart_wdt.c new file mode 100644 index 000000000000..4166e4d116a8 --- /dev/null +++ b/drivers/watchdog/moxart_wdt.c @@ -0,0 +1,165 @@ +/* + * MOXA ART SoCs watchdog driver. + * + * Copyright (C) 2013 Jonas Jensen + * + * Jonas Jensen <jonas.jensen@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/watchdog.h> +#include <linux/moduleparam.h> + +#define REG_COUNT 0x4 +#define REG_MODE 0x8 +#define REG_ENABLE 0xC + +struct moxart_wdt_dev { + struct watchdog_device dev; + void __iomem *base; + unsigned int clock_frequency; +}; + +static int heartbeat; + +static int moxart_wdt_stop(struct watchdog_device *wdt_dev) +{ + struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev); + + writel(0, moxart_wdt->base + REG_ENABLE); + + return 0; +} + +static int moxart_wdt_start(struct watchdog_device *wdt_dev) +{ + struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev); + + writel(moxart_wdt->clock_frequency * wdt_dev->timeout, + moxart_wdt->base + REG_COUNT); + writel(0x5ab9, moxart_wdt->base + REG_MODE); + writel(0x03, moxart_wdt->base + REG_ENABLE); + + return 0; +} + +static int moxart_wdt_set_timeout(struct watchdog_device *wdt_dev, + unsigned int timeout) +{ + wdt_dev->timeout = timeout; + + return 0; +} + +static const struct watchdog_info moxart_wdt_info = { + .identity = "moxart-wdt", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | + WDIOF_MAGICCLOSE, +}; + +static const struct watchdog_ops moxart_wdt_ops = { + .owner = THIS_MODULE, + .start = moxart_wdt_start, + .stop = moxart_wdt_stop, + .set_timeout = moxart_wdt_set_timeout, +}; + +static int moxart_wdt_probe(struct platform_device *pdev) +{ + struct moxart_wdt_dev *moxart_wdt; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; + struct resource *res; + struct clk *clk; + int err; + unsigned int max_timeout; + bool nowayout = WATCHDOG_NOWAYOUT; + + moxart_wdt = devm_kzalloc(dev, sizeof(*moxart_wdt), GFP_KERNEL); + if (!moxart_wdt) + return -ENOMEM; + + platform_set_drvdata(pdev, moxart_wdt); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + moxart_wdt->base = devm_ioremap_resource(dev, res); + if (IS_ERR(moxart_wdt->base)) + return PTR_ERR(moxart_wdt->base); + + clk = of_clk_get(node, 0); + if (IS_ERR(clk)) { + pr_err("%s: of_clk_get failed\n", __func__); + return PTR_ERR(clk); + } + + moxart_wdt->clock_frequency = clk_get_rate(clk); + if (moxart_wdt->clock_frequency == 0) { + pr_err("%s: incorrect clock frequency\n", __func__); + return -EINVAL; + } + + max_timeout = UINT_MAX / moxart_wdt->clock_frequency; + + moxart_wdt->dev.info = &moxart_wdt_info; + moxart_wdt->dev.ops = &moxart_wdt_ops; + moxart_wdt->dev.timeout = max_timeout; + moxart_wdt->dev.min_timeout = 1; + moxart_wdt->dev.max_timeout = max_timeout; + moxart_wdt->dev.parent = dev; + + watchdog_init_timeout(&moxart_wdt->dev, heartbeat, dev); + watchdog_set_nowayout(&moxart_wdt->dev, nowayout); + + watchdog_set_drvdata(&moxart_wdt->dev, moxart_wdt); + + err = watchdog_register_device(&moxart_wdt->dev); + if (err) + return err; + + dev_dbg(dev, "Watchdog enabled (heartbeat=%d sec, nowayout=%d)\n", + moxart_wdt->dev.timeout, nowayout); + + return 0; +} + +static int moxart_wdt_remove(struct platform_device *pdev) +{ + struct moxart_wdt_dev *moxart_wdt = platform_get_drvdata(pdev); + + moxart_wdt_stop(&moxart_wdt->dev); + watchdog_unregister_device(&moxart_wdt->dev); + + return 0; +} + +static const struct of_device_id moxart_watchdog_match[] = { + { .compatible = "moxa,moxart-watchdog" }, + { }, +}; + +static struct platform_driver moxart_wdt_driver = { + .probe = moxart_wdt_probe, + .remove = moxart_wdt_remove, + .driver = { + .name = "moxart-watchdog", + .owner = THIS_MODULE, + .of_match_table = moxart_watchdog_match, + }, +}; +module_platform_driver(moxart_wdt_driver); + +module_param(heartbeat, int, 0); +MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds"); + +MODULE_DESCRIPTION("MOXART watchdog driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jonas Jensen <jonas.jensen@gmail.com>"); diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index d0ebebae607c..d82152077fd9 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -330,4 +330,3 @@ MODULE_AUTHOR("Dave Updegraff, Kumar Gala"); MODULE_DESCRIPTION("Driver for watchdog timer in MPC8xx/MPC83xx/MPC86xx " "uProcessors"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c index b4341110ad4f..edb31ffd7927 100644 --- a/drivers/watchdog/mtx-1_wdt.c +++ b/drivers/watchdog/mtx-1_wdt.c @@ -257,5 +257,4 @@ module_platform_driver(mtx1_wdt_driver); MODULE_AUTHOR("Michael Stickel, Florian Fainelli"); MODULE_DESCRIPTION("Driver for the MTX-1 watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:mtx1-wdt"); diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c index e4cf98019265..f9fa58409396 100644 --- a/drivers/watchdog/mv64x60_wdt.c +++ b/drivers/watchdog/mv64x60_wdt.c @@ -255,7 +255,7 @@ static struct miscdevice mv64x60_wdt_miscdev = { static int mv64x60_wdt_probe(struct platform_device *dev) { - struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data; + struct mv64x60_wdt_pdata *pdata = dev_get_platdata(&dev->dev); struct resource *r; int timeout = 10; @@ -323,5 +323,4 @@ module_exit(mv64x60_wdt_exit); MODULE_AUTHOR("James Chapman <jchapman@katalix.com>"); MODULE_DESCRIPTION("MV64x60 watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:" MV64x60_WDT_NAME); diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c index b15b6efd91a1..a0d893b0930e 100644 --- a/drivers/watchdog/nuc900_wdt.c +++ b/drivers/watchdog/nuc900_wdt.c @@ -307,5 +307,4 @@ module_platform_driver(nuc900wdt_driver); MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); MODULE_DESCRIPTION("Watchdog driver for NUC900"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:nuc900-wdt"); diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c index 59cf19eeea07..231e5b9d5c8e 100644 --- a/drivers/watchdog/nv_tco.c +++ b/drivers/watchdog/nv_tco.c @@ -513,4 +513,3 @@ module_exit(nv_tco_cleanup_module); MODULE_AUTHOR("Mike Waychison"); MODULE_DESCRIPTION("TCO timer driver for NV chipsets"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c index 4dd281f2c33f..fb57103c8ebc 100644 --- a/drivers/watchdog/of_xilinx_wdt.c +++ b/drivers/watchdog/of_xilinx_wdt.c @@ -405,4 +405,3 @@ module_platform_driver(xwdt_driver); MODULE_AUTHOR("Alejandro Cabrera <aldaya@gmail.com>"); MODULE_DESCRIPTION("Xilinx Watchdog driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index af88ffd1068f..09cf0135e8ac 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -68,14 +68,14 @@ static void omap_wdt_reload(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* wait for posted write to complete */ - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08) + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08) cpu_relax(); wdev->wdt_trgr_pattern = ~wdev->wdt_trgr_pattern; - __raw_writel(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR)); + writel_relaxed(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR)); /* wait for posted write to complete */ - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08) + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08) cpu_relax(); /* reloaded WCRR from WLDR */ } @@ -85,12 +85,12 @@ static void omap_wdt_enable(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* Sequence to enable the watchdog */ - __raw_writel(0xBBBB, base + OMAP_WATCHDOG_SPR); - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10) + writel_relaxed(0xBBBB, base + OMAP_WATCHDOG_SPR); + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10) cpu_relax(); - __raw_writel(0x4444, base + OMAP_WATCHDOG_SPR); - while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10) + writel_relaxed(0x4444, base + OMAP_WATCHDOG_SPR); + while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10) cpu_relax(); } @@ -99,12 +99,12 @@ static void omap_wdt_disable(struct omap_wdt_dev *wdev) void __iomem *base = wdev->base; /* sequence required to disable watchdog */ - __raw_writel(0xAAAA, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10) + writel_relaxed(0xAAAA, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10) cpu_relax(); - __raw_writel(0x5555, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10) + writel_relaxed(0x5555, base + OMAP_WATCHDOG_SPR); /* TIMER_MODE */ + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10) cpu_relax(); } @@ -115,11 +115,11 @@ static void omap_wdt_set_timer(struct omap_wdt_dev *wdev, void __iomem *base = wdev->base; /* just count up at 32 KHz */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04) + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04) cpu_relax(); - __raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR); - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04) + writel_relaxed(pre_margin, base + OMAP_WATCHDOG_LDR); + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04) cpu_relax(); } @@ -135,11 +135,11 @@ static int omap_wdt_start(struct watchdog_device *wdog) pm_runtime_get_sync(wdev->dev); /* initialize prescaler */ - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01) cpu_relax(); - __raw_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL); - while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01) + writel_relaxed((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL); + while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01) cpu_relax(); omap_wdt_set_timer(wdev, wdog->timeout); @@ -205,7 +205,7 @@ static const struct watchdog_ops omap_wdt_ops = { static int omap_wdt_probe(struct platform_device *pdev) { - struct omap_wd_timer_platform_data *pdata = pdev->dev.platform_data; + struct omap_wd_timer_platform_data *pdata = dev_get_platdata(&pdev->dev); struct watchdog_device *omap_wdt; struct resource *res, *mem; struct omap_wdt_dev *wdev; @@ -275,7 +275,7 @@ static int omap_wdt_probe(struct platform_device *pdev) } pr_info("OMAP Watchdog Timer Rev 0x%02x: initial timeout %d sec\n", - __raw_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF, + readl_relaxed(wdev->base + OMAP_WATCHDOG_REV) & 0xFF, omap_wdt->timeout); pm_runtime_put_sync(wdev->dev); diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 4ea5fcccac02..44edca66d564 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -207,7 +207,7 @@ static struct platform_driver orion_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = "orion_wdt", - .of_match_table = of_match_ptr(orion_wdt_of_match_table), + .of_match_table = orion_wdt_of_match_table, }, }; @@ -225,4 +225,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:orion_wdt"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index 5afb89b48650..5211d56b3681 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -580,8 +580,6 @@ MODULE_AUTHOR("Sven Anders <anders@anduras.de>, " MODULE_DESCRIPTION("PC87413 WDT driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - module_param(io, int, 0); MODULE_PARM_DESC(io, MODNAME " I/O port (default: " __MODULE_STRING(IO_DEFAULT) ")."); diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c index 33e49a7f889f..e936f15dc7c7 100644 --- a/drivers/watchdog/pcwd.c +++ b/drivers/watchdog/pcwd.c @@ -61,7 +61,7 @@ #include <linux/delay.h> /* For mdelay function */ #include <linux/timer.h> /* For timer related operations */ #include <linux/jiffies.h> /* For jiffies stuff */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/reboot.h> /* For kernel_power_off() */ #include <linux/init.h> /* For __init/__exit/... */ @@ -1011,5 +1011,3 @@ MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, " MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver"); MODULE_VERSION(WATCHDOG_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c index 7890f84edf76..b4864f254b48 100644 --- a/drivers/watchdog/pcwd_pci.c +++ b/drivers/watchdog/pcwd_pci.c @@ -40,7 +40,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/delay.h> /* For mdelay function */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/notifier.h> /* For notifier support */ #include <linux/reboot.h> /* For reboot_notifier stuff */ @@ -820,5 +820,3 @@ module_pci_driver(pcipcwd_driver); MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("Berkshire PCI-PC Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c index 7b14d1847927..b731b5d129be 100644 --- a/drivers/watchdog/pcwd_usb.c +++ b/drivers/watchdog/pcwd_usb.c @@ -32,7 +32,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/delay.h> /* For mdelay function */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/notifier.h> /* For notifier support */ #include <linux/reboot.h> /* For reboot_notifier stuff */ @@ -72,8 +72,6 @@ do { \ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE(DRIVER_LICENSE); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); /* Module Parameters */ module_param(debug, int, 0); @@ -235,13 +233,17 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, unsigned char cmd, unsigned char *msb, unsigned char *lsb) { int got_response, count; - unsigned char buf[6]; + unsigned char *buf; /* We will not send any commands if the USB PCWD device does * not exist */ if ((!usb_pcwd) || (!usb_pcwd->exists)) return -1; + buf = kmalloc(6, GFP_KERNEL); + if (buf == NULL) + return 0; + /* The USB PC Watchdog uses a 6 byte report format. * The board currently uses only 3 of the six bytes of the report. */ buf[0] = cmd; /* Byte 0 = CMD */ @@ -256,8 +258,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, if (usb_control_msg(usb_pcwd->udev, usb_sndctrlpipe(usb_pcwd->udev, 0), HID_REQ_SET_REPORT, HID_DT_REPORT, - 0x0200, usb_pcwd->interface_number, buf, sizeof(buf), - USB_COMMAND_TIMEOUT) != sizeof(buf)) { + 0x0200, usb_pcwd->interface_number, buf, 6, + USB_COMMAND_TIMEOUT) != 6) { dbg("usb_pcwd_send_command: error in usb_control_msg for " "cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb); } @@ -277,6 +279,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd, *lsb = usb_pcwd->cmd_data_lsb; } + kfree(buf); + return got_response; } diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c index 329bc60ad7a2..0cdfee266690 100644 --- a/drivers/watchdog/pika_wdt.c +++ b/drivers/watchdog/pika_wdt.c @@ -299,5 +299,3 @@ module_exit(pikawdt_exit); MODULE_AUTHOR("Sean MacLennan <smaclennan@pikatech.com>"); MODULE_DESCRIPTION("PIKA FPGA based Watchdog Timer"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index b30bd430f591..1bdcc313e1d9 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -233,5 +233,4 @@ MODULE_PARM_DESC(nowayout, "Set to 1 to keep watchdog running after device release"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:pnx4008-watchdog"); diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c index 1b62a7dfcc95..882fdcb46ad1 100644 --- a/drivers/watchdog/pnx833x_wdt.c +++ b/drivers/watchdog/pnx833x_wdt.c @@ -278,4 +278,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Daniel Laird/Andre McCurdy"); MODULE_DESCRIPTION("Hardware Watchdog Device for PNX833x"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c index 9cf6bc7a234f..71e78ef4b736 100644 --- a/drivers/watchdog/rc32434_wdt.c +++ b/drivers/watchdog/rc32434_wdt.c @@ -25,8 +25,7 @@ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/panic/... */ #include <linux/fs.h> /* For file operations */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/platform_device.h> /* For platform_driver framework */ @@ -329,4 +328,3 @@ MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>," "Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("Driver for the IDT RC32434 SoC watchdog"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c index b0f116c2fd53..082d06262959 100644 --- a/drivers/watchdog/rdc321x_wdt.c +++ b/drivers/watchdog/rdc321x_wdt.c @@ -231,7 +231,7 @@ static int rdc321x_wdt_probe(struct platform_device *pdev) struct resource *r; struct rdc321x_wdt_pdata *pdata; - pdata = pdev->dev.platform_data; + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "no platform data supplied\n"); return -ENODEV; @@ -298,4 +298,3 @@ module_platform_driver(rdc321x_wdt_driver); MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); MODULE_DESCRIPTION("RDC321x watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c new file mode 100644 index 000000000000..53d37fea183e --- /dev/null +++ b/drivers/watchdog/rt2880_wdt.c @@ -0,0 +1,207 @@ +/* + * Ralink RT288x/RT3xxx/MT76xx built-in hardware watchdog timer + * + * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2013 John Crispin <blogic@openwrt.org> + * + * This driver was based on: drivers/watchdog/softdog.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/reset.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/watchdog.h> +#include <linux/miscdevice.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> + +#include <asm/mach-ralink/ralink_regs.h> + +#define SYSC_RSTSTAT 0x38 +#define WDT_RST_CAUSE BIT(1) + +#define RALINK_WDT_TIMEOUT 30 +#define RALINK_WDT_PRESCALE 65536 + +#define TIMER_REG_TMR1LOAD 0x00 +#define TIMER_REG_TMR1CTL 0x08 + +#define TMRSTAT_TMR1RST BIT(5) + +#define TMR1CTL_ENABLE BIT(7) +#define TMR1CTL_MODE_SHIFT 4 +#define TMR1CTL_MODE_MASK 0x3 +#define TMR1CTL_MODE_FREE_RUNNING 0x0 +#define TMR1CTL_MODE_PERIODIC 0x1 +#define TMR1CTL_MODE_TIMEOUT 0x2 +#define TMR1CTL_MODE_WDT 0x3 +#define TMR1CTL_PRESCALE_MASK 0xf +#define TMR1CTL_PRESCALE_65536 0xf + +static struct clk *rt288x_wdt_clk; +static unsigned long rt288x_wdt_freq; +static void __iomem *rt288x_wdt_base; + +static bool nowayout = WATCHDOG_NOWAYOUT; +module_param(nowayout, bool, 0); +MODULE_PARM_DESC(nowayout, + "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +static inline void rt_wdt_w32(unsigned reg, u32 val) +{ + iowrite32(val, rt288x_wdt_base + reg); +} + +static inline u32 rt_wdt_r32(unsigned reg) +{ + return ioread32(rt288x_wdt_base + reg); +} + +static int rt288x_wdt_ping(struct watchdog_device *w) +{ + rt_wdt_w32(TIMER_REG_TMR1LOAD, w->timeout * rt288x_wdt_freq); + + return 0; +} + +static int rt288x_wdt_start(struct watchdog_device *w) +{ + u32 t; + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t &= ~(TMR1CTL_MODE_MASK << TMR1CTL_MODE_SHIFT | + TMR1CTL_PRESCALE_MASK); + t |= (TMR1CTL_MODE_WDT << TMR1CTL_MODE_SHIFT | + TMR1CTL_PRESCALE_65536); + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + rt288x_wdt_ping(w); + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t |= TMR1CTL_ENABLE; + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + return 0; +} + +static int rt288x_wdt_stop(struct watchdog_device *w) +{ + u32 t; + + rt288x_wdt_ping(w); + + t = rt_wdt_r32(TIMER_REG_TMR1CTL); + t &= ~TMR1CTL_ENABLE; + rt_wdt_w32(TIMER_REG_TMR1CTL, t); + + return 0; +} + +static int rt288x_wdt_set_timeout(struct watchdog_device *w, unsigned int t) +{ + w->timeout = t; + rt288x_wdt_ping(w); + + return 0; +} + +static int rt288x_wdt_bootcause(void) +{ + if (rt_sysc_r32(SYSC_RSTSTAT) & WDT_RST_CAUSE) + return WDIOF_CARDRESET; + + return 0; +} + +static struct watchdog_info rt288x_wdt_info = { + .identity = "Ralink Watchdog", + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, +}; + +static struct watchdog_ops rt288x_wdt_ops = { + .owner = THIS_MODULE, + .start = rt288x_wdt_start, + .stop = rt288x_wdt_stop, + .ping = rt288x_wdt_ping, + .set_timeout = rt288x_wdt_set_timeout, +}; + +static struct watchdog_device rt288x_wdt_dev = { + .info = &rt288x_wdt_info, + .ops = &rt288x_wdt_ops, + .min_timeout = 1, +}; + +static int rt288x_wdt_probe(struct platform_device *pdev) +{ + struct resource *res; + int ret; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + rt288x_wdt_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(rt288x_wdt_base)) + return PTR_ERR(rt288x_wdt_base); + + rt288x_wdt_clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(rt288x_wdt_clk)) + return PTR_ERR(rt288x_wdt_clk); + + device_reset(&pdev->dev); + + rt288x_wdt_freq = clk_get_rate(rt288x_wdt_clk) / RALINK_WDT_PRESCALE; + + rt288x_wdt_dev.dev = &pdev->dev; + rt288x_wdt_dev.bootstatus = rt288x_wdt_bootcause(); + + rt288x_wdt_dev.max_timeout = (0xfffful / rt288x_wdt_freq); + rt288x_wdt_dev.timeout = rt288x_wdt_dev.max_timeout; + + watchdog_set_nowayout(&rt288x_wdt_dev, nowayout); + + ret = watchdog_register_device(&rt288x_wdt_dev); + if (!ret) + dev_info(&pdev->dev, "Initialized\n"); + + return 0; +} + +static int rt288x_wdt_remove(struct platform_device *pdev) +{ + watchdog_unregister_device(&rt288x_wdt_dev); + + return 0; +} + +static void rt288x_wdt_shutdown(struct platform_device *pdev) +{ + rt288x_wdt_stop(&rt288x_wdt_dev); +} + +static const struct of_device_id rt288x_wdt_match[] = { + { .compatible = "ralink,rt2880-wdt" }, + {}, +}; +MODULE_DEVICE_TABLE(of, rt288x_wdt_match); + +static struct platform_driver rt288x_wdt_driver = { + .probe = rt288x_wdt_probe, + .remove = rt288x_wdt_remove, + .shutdown = rt288x_wdt_shutdown, + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .of_match_table = rt288x_wdt_match, + }, +}; + +module_platform_driver(rt288x_wdt_driver); + +MODULE_DESCRIPTION("MediaTek/Ralink RT288x/RT3xxx hardware watchdog driver"); +MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 23aad7c6bf5d..7d8fd041ee25 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -29,7 +29,6 @@ #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/timer.h> -#include <linux/miscdevice.h> /* for MODULE_ALIAS_MISCDEV */ #include <linux/watchdog.h> #include <linux/init.h> #include <linux/platform_device.h> @@ -539,5 +538,4 @@ MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>, " "Dimitry Andric <dimitry.andric@tomtom.com>"); MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:s3c2410-wdt"); diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c index ccd6b29e21bf..e1d39a1e9628 100644 --- a/drivers/watchdog/sa1100_wdt.c +++ b/drivers/watchdog/sa1100_wdt.c @@ -193,4 +193,3 @@ module_param(margin, int, 0); MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c index ea5d84a1fdad..3abae50773b8 100644 --- a/drivers/watchdog/sb_wdog.c +++ b/drivers/watchdog/sb_wdog.c @@ -341,7 +341,6 @@ MODULE_PARM_DESC(timeout, "Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* * example code that can be put in a platform code area to utilize the diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c index 63632ec87c7e..2eef58a0cf05 100644 --- a/drivers/watchdog/sbc60xxwdt.c +++ b/drivers/watchdog/sbc60xxwdt.c @@ -387,4 +387,3 @@ module_exit(sbc60xxwdt_unload); MODULE_AUTHOR("Jakob Oestergaard <jakob@unthought.net>"); MODULE_DESCRIPTION("60xx Single Board Computer Watchdog Timer driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c index 719edc8fdeb3..5f268add17ce 100644 --- a/drivers/watchdog/sbc7240_wdt.c +++ b/drivers/watchdog/sbc7240_wdt.c @@ -309,5 +309,3 @@ MODULE_AUTHOR("Gilles Gigan"); MODULE_DESCRIPTION("Watchdog device driver for single board" " computers EPIC Nano 7240 from iEi"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c index d4781e05f017..da60560ca446 100644 --- a/drivers/watchdog/sbc8360.c +++ b/drivers/watchdog/sbc8360.c @@ -404,6 +404,5 @@ MODULE_AUTHOR("Ian E. Morgan <imorgan@webcon.ca>"); MODULE_DESCRIPTION("SBC8360 watchdog driver"); MODULE_LICENSE("GPL"); MODULE_VERSION("1.01"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of sbc8360.c */ diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c index 0c3e9f66ef77..a1c502e0d8ec 100644 --- a/drivers/watchdog/sbc_epx_c3.c +++ b/drivers/watchdog/sbc_epx_c3.c @@ -220,4 +220,3 @@ MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC. " "so only use it if you are *sure* you are running on this specific " "SBC system from Winsystems! It writes to IO ports 0x1ee and 0x1ef!"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c index 90d5527ca886..a517d8bae757 100644 --- a/drivers/watchdog/sbc_fitpc2_wdt.c +++ b/drivers/watchdog/sbc_fitpc2_wdt.c @@ -263,5 +263,3 @@ module_param(nowayout, bool, 0); MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c index 3fb83b0c28c2..3b9fff9dcf65 100644 --- a/drivers/watchdog/sc1200wdt.c +++ b/drivers/watchdog/sc1200wdt.c @@ -476,4 +476,3 @@ MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>"); MODULE_DESCRIPTION( "Driver for National Semiconductor PC87307/PC97307 watchdog component"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c index 707e027e5002..f353e18b1a82 100644 --- a/drivers/watchdog/sc520_wdt.c +++ b/drivers/watchdog/sc520_wdt.c @@ -433,4 +433,3 @@ MODULE_AUTHOR("Scott and Bill Jennings"); MODULE_DESCRIPTION( "Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c index af7b136b1874..b96127ea3de1 100644 --- a/drivers/watchdog/sch311x_wdt.c +++ b/drivers/watchdog/sch311x_wdt.c @@ -26,8 +26,7 @@ #include <linux/types.h> /* For standard types (like size_t) */ #include <linux/errno.h> /* For the -ENODEV/... values */ #include <linux/kernel.h> /* For printk/... */ -#include <linux/miscdevice.h> /* For MODULE_ALIAS_MISCDEV - (WATCHDOG_MINOR) */ +#include <linux/miscdevice.h> /* For struct miscdevice */ #include <linux/watchdog.h> /* For the watchdog specific items */ #include <linux/init.h> /* For __init/__exit/... */ #include <linux/fs.h> /* For file operations */ @@ -545,5 +544,3 @@ module_exit(sch311x_wdt_exit); MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>"); MODULE_DESCRIPTION("SMSC SCH311x WatchDog Timer Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c index 8ae7c282d465..836377cf9271 100644 --- a/drivers/watchdog/scx200_wdt.c +++ b/drivers/watchdog/scx200_wdt.c @@ -37,7 +37,6 @@ MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>"); MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); static int margin = 60; /* in seconds */ module_param(margin, int, 0); diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index 5bca79457768..f9b8e06f3558 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -343,7 +343,6 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); MODULE_DESCRIPTION("SuperH watchdog driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(clock_division_ratio, int, 0); MODULE_PARM_DESC(clock_division_ratio, diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c new file mode 100644 index 000000000000..ced3edc95957 --- /dev/null +++ b/drivers/watchdog/sirfsoc_wdt.c @@ -0,0 +1,226 @@ +/* + * Watchdog driver for CSR SiRFprimaII and SiRFatlasVI + * + * Copyright (c) 2013 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/module.h> +#include <linux/watchdog.h> +#include <linux/platform_device.h> +#include <linux/moduleparam.h> +#include <linux/of.h> +#include <linux/io.h> +#include <linux/uaccess.h> + +#define CLOCK_FREQ 1000000 + +#define SIRFSOC_TIMER_COUNTER_LO 0x0000 +#define SIRFSOC_TIMER_MATCH_0 0x0008 +#define SIRFSOC_TIMER_INT_EN 0x0024 +#define SIRFSOC_TIMER_WATCHDOG_EN 0x0028 +#define SIRFSOC_TIMER_LATCH 0x0030 +#define SIRFSOC_TIMER_LATCHED_LO 0x0034 + +#define SIRFSOC_TIMER_WDT_INDEX 5 + +#define SIRFSOC_WDT_MIN_TIMEOUT 30 /* 30 secs */ +#define SIRFSOC_WDT_MAX_TIMEOUT (10 * 60) /* 10 mins */ +#define SIRFSOC_WDT_DEFAULT_TIMEOUT 30 /* 30 secs */ + +static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT; +static bool nowayout = WATCHDOG_NOWAYOUT; + +module_param(timeout, uint, 0); +module_param(nowayout, bool, 0); + +MODULE_PARM_DESC(timeout, "Default watchdog timeout (in seconds)"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); + +static unsigned int sirfsoc_wdt_gettimeleft(struct watchdog_device *wdd) +{ + u32 counter, match; + void __iomem *wdt_base; + int time_left; + + wdt_base = watchdog_get_drvdata(wdd); + counter = readl(wdt_base + SIRFSOC_TIMER_COUNTER_LO); + match = readl(wdt_base + + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); + + time_left = match - counter; + + return time_left / CLOCK_FREQ; +} + +static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd) +{ + u32 counter, timeout_ticks; + void __iomem *wdt_base; + + timeout_ticks = wdd->timeout * CLOCK_FREQ; + wdt_base = watchdog_get_drvdata(wdd); + + /* Enable the latch before reading the LATCH_LO register */ + writel(1, wdt_base + SIRFSOC_TIMER_LATCH); + + /* Set the TO value */ + counter = readl(wdt_base + SIRFSOC_TIMER_LATCHED_LO); + + counter += timeout_ticks; + + writel(counter, wdt_base + + SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2)); + + return 0; +} + +static int sirfsoc_wdt_enable(struct watchdog_device *wdd) +{ + void __iomem *wdt_base = watchdog_get_drvdata(wdd); + sirfsoc_wdt_updatetimeout(wdd); + + /* + * NOTE: If interrupt is not enabled + * then WD-Reset doesn't get generated at all. + */ + writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) + | (1 << SIRFSOC_TIMER_WDT_INDEX), + wdt_base + SIRFSOC_TIMER_INT_EN); + writel(1, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); + + return 0; +} + +static int sirfsoc_wdt_disable(struct watchdog_device *wdd) +{ + void __iomem *wdt_base = watchdog_get_drvdata(wdd); + + writel(0, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN); + writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN) + & (~(1 << SIRFSOC_TIMER_WDT_INDEX)), + wdt_base + SIRFSOC_TIMER_INT_EN); + + return 0; +} + +static int sirfsoc_wdt_settimeout(struct watchdog_device *wdd, unsigned int to) +{ + wdd->timeout = to; + sirfsoc_wdt_updatetimeout(wdd); + + return 0; +} + +#define OPTIONS (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE) + +static const struct watchdog_info sirfsoc_wdt_ident = { + .options = OPTIONS, + .firmware_version = 0, + .identity = "SiRFSOC Watchdog", +}; + +static struct watchdog_ops sirfsoc_wdt_ops = { + .owner = THIS_MODULE, + .start = sirfsoc_wdt_enable, + .stop = sirfsoc_wdt_disable, + .get_timeleft = sirfsoc_wdt_gettimeleft, + .ping = sirfsoc_wdt_updatetimeout, + .set_timeout = sirfsoc_wdt_settimeout, +}; + +static struct watchdog_device sirfsoc_wdd = { + .info = &sirfsoc_wdt_ident, + .ops = &sirfsoc_wdt_ops, + .timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT, + .min_timeout = SIRFSOC_WDT_MIN_TIMEOUT, + .max_timeout = SIRFSOC_WDT_MAX_TIMEOUT, +}; + +static int sirfsoc_wdt_probe(struct platform_device *pdev) +{ + struct resource *res; + int ret; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + watchdog_set_drvdata(&sirfsoc_wdd, base); + + watchdog_init_timeout(&sirfsoc_wdd, timeout, &pdev->dev); + watchdog_set_nowayout(&sirfsoc_wdd, nowayout); + + ret = watchdog_register_device(&sirfsoc_wdd); + if (ret) + return ret; + + platform_set_drvdata(pdev, &sirfsoc_wdd); + + return 0; +} + +static void sirfsoc_wdt_shutdown(struct platform_device *pdev) +{ + struct watchdog_device *wdd = platform_get_drvdata(pdev); + + sirfsoc_wdt_disable(wdd); +} + +static int sirfsoc_wdt_remove(struct platform_device *pdev) +{ + sirfsoc_wdt_shutdown(pdev); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int sirfsoc_wdt_suspend(struct device *dev) +{ + return 0; +} + +static int sirfsoc_wdt_resume(struct device *dev) +{ + struct watchdog_device *wdd = dev_get_drvdata(dev); + + /* + * NOTE: Since timer controller registers settings are saved + * and restored back by the timer-prima2.c, so we need not + * update WD settings except refreshing timeout. + */ + sirfsoc_wdt_updatetimeout(wdd); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(sirfsoc_wdt_pm_ops, + sirfsoc_wdt_suspend, sirfsoc_wdt_resume); + +static const struct of_device_id sirfsoc_wdt_of_match[] = { + { .compatible = "sirf,prima2-tick"}, + {}, +}; +MODULE_DEVICE_TABLE(of, sirfsoc_wdt_of_match); + +static struct platform_driver sirfsoc_wdt_driver = { + .driver = { + .name = "sirfsoc-wdt", + .owner = THIS_MODULE, + .pm = &sirfsoc_wdt_pm_ops, + .of_match_table = of_match_ptr(sirfsoc_wdt_of_match), + }, + .probe = sirfsoc_wdt_probe, + .remove = sirfsoc_wdt_remove, + .shutdown = sirfsoc_wdt_shutdown, +}; +module_platform_driver(sirfsoc_wdt_driver); + +MODULE_DESCRIPTION("SiRF SoC watchdog driver"); +MODULE_AUTHOR("Xianglong Du <Xianglong.Du@csr.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:sirfsoc-wdt"); diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index 6d665f9c1d58..445ea1ad1fa9 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -603,8 +603,6 @@ MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version " VERSION ")"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); - #ifdef SMSC_SUPPORT_MINUTES module_param(unit, int, 0); MODULE_PARM_DESC(unit, diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index b68b1e519d53..ef2638fee4a8 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -207,4 +207,3 @@ module_exit(watchdog_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("Software Watchdog Device Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 0e9d8c479c35..ce63a1bbf395 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -580,4 +580,3 @@ module_exit(sp5100_tco_cleanup_module); MODULE_AUTHOR("Priyanka Gupta"); MODULE_DESCRIPTION("TCO timer driver for SP5100/SB800 chipset"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index 58df98aec122..3f786ce0a6f2 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -268,7 +268,6 @@ static int sp805_wdt_remove(struct amba_device *adev) struct sp805_wdt *wdt = amba_get_drvdata(adev); watchdog_unregister_device(&wdt->wdd); - amba_set_drvdata(adev, NULL); watchdog_set_drvdata(&wdt->wdd, NULL); return 0; diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c index c97e98dcde62..d667f6b51d35 100644 --- a/drivers/watchdog/stmp3xxx_rtc_wdt.c +++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c @@ -30,7 +30,7 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat period in seconds from 1 to " static int wdt_start(struct watchdog_device *wdd) { struct device *dev = watchdog_get_drvdata(wdd); - struct stmp3xxx_wdt_pdata *pdata = dev->platform_data; + struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev); pdata->wdt_set_timeout(dev->parent, wdd->timeout * WDOG_TICK_RATE); return 0; @@ -39,7 +39,7 @@ static int wdt_start(struct watchdog_device *wdd) static int wdt_stop(struct watchdog_device *wdd) { struct device *dev = watchdog_get_drvdata(wdd); - struct stmp3xxx_wdt_pdata *pdata = dev->platform_data; + struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev); pdata->wdt_set_timeout(dev->parent, 0); return 0; @@ -108,4 +108,3 @@ module_platform_driver(stmp3xxx_wdt_driver); MODULE_DESCRIPTION("STMP3XXX RTC Watchdog Driver"); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c index f6caa77151c7..76332d893e12 100644 --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -217,7 +217,7 @@ static struct platform_driver sunxi_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = DRV_NAME, - .of_match_table = of_match_ptr(sunxi_wdt_dt_ids) + .of_match_table = sunxi_wdt_dt_ids, }, }; diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c index c9b0c627fe7e..09d4831aa61f 100644 --- a/drivers/watchdog/ts72xx_wdt.c +++ b/drivers/watchdog/ts72xx_wdt.c @@ -192,7 +192,7 @@ static int ts72xx_wdt_open(struct inode *inode, struct file *file) dev_err(&wdt->pdev->dev, "failed to convert timeout (%d) to register value\n", timeout); - return -EINVAL; + return regval; } if (mutex_lock_interruptible(&wdt->lock)) @@ -305,7 +305,8 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, switch (cmd) { case WDIOC_GETSUPPORT: - error = copy_to_user(argp, &winfo, sizeof(winfo)); + if (copy_to_user(argp, &winfo, sizeof(winfo))) + error = -EFAULT; break; case WDIOC_GETSTATUS: @@ -320,10 +321,9 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_SETOPTIONS: { int options; - if (get_user(options, p)) { - error = -EFAULT; + error = get_user(options, p); + if (error) break; - } error = -EINVAL; @@ -341,30 +341,26 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_SETTIMEOUT: { int new_timeout; + int regval; - if (get_user(new_timeout, p)) { - error = -EFAULT; - } else { - int regval; - - regval = timeout_to_regval(new_timeout); - if (regval < 0) { - error = -EINVAL; - } else { - ts72xx_wdt_stop(wdt); - wdt->regval = regval; - ts72xx_wdt_start(wdt); - } - } + error = get_user(new_timeout, p); if (error) break; + regval = timeout_to_regval(new_timeout); + if (regval < 0) { + error = regval; + break; + } + ts72xx_wdt_stop(wdt); + wdt->regval = regval; + ts72xx_wdt_start(wdt); + /*FALLTHROUGH*/ } case WDIOC_GETTIMEOUT: - if (put_user(regval_to_timeout(wdt->regval), p)) - error = -EFAULT; + error = put_user(regval_to_timeout(wdt->regval), p); break; default: diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c index 88f23c5cfddb..0fd0e8ae62a8 100644 --- a/drivers/watchdog/txx9wdt.c +++ b/drivers/watchdog/txx9wdt.c @@ -176,5 +176,4 @@ module_platform_driver_probe(txx9wdt_driver, txx9wdt_probe); MODULE_DESCRIPTION("TXx9 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:txx9wdt"); diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c index a614d84121c3..e029b5768f2c 100644 --- a/drivers/watchdog/ux500_wdt.c +++ b/drivers/watchdog/ux500_wdt.c @@ -88,7 +88,7 @@ static struct watchdog_device ux500_wdt = { static int ux500_wdt_probe(struct platform_device *pdev) { int ret; - struct ux500_wdt_data *pdata = pdev->dev.platform_data; + struct ux500_wdt_data *pdata = dev_get_platdata(&pdev->dev); if (pdata) { if (pdata->timeout > 0) @@ -167,5 +167,4 @@ module_platform_driver(ux500_wdt_driver); MODULE_AUTHOR("Jonas Aaberg <jonas.aberg@stericsson.com>"); MODULE_DESCRIPTION("Ux500 Watchdog Driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); MODULE_ALIAS("platform:ux500_wdt"); diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c index 92f1326f0cfc..e24b21082874 100644 --- a/drivers/watchdog/w83627hf_wdt.c +++ b/drivers/watchdog/w83627hf_wdt.c @@ -1,6 +1,9 @@ /* * w83627hf/thf WDT driver * + * (c) Copyright 2013 Guenter Roeck + * converted to watchdog infrastructure + * * (c) Copyright 2007 Vlad Drukker <vlad@storewiz.com> * added support for W83627THF. * @@ -31,31 +34,22 @@ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/types.h> -#include <linux/miscdevice.h> #include <linux/watchdog.h> -#include <linux/fs.h> #include <linux/ioport.h> #include <linux/notifier.h> #include <linux/reboot.h> #include <linux/init.h> -#include <linux/spinlock.h> #include <linux/io.h> -#include <linux/uaccess.h> - #define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT" #define WATCHDOG_TIMEOUT 60 /* 60 sec default timeout */ -static unsigned long wdt_is_open; -static char expect_close; -static DEFINE_SPINLOCK(io_lock); - /* You must set this - there is no sane way to probe for this board. */ static int wdt_io = 0x2E; module_param(wdt_io, int, 0); MODULE_PARM_DESC(wdt_io, "w83627hf/thf WDT io port (default 0x2E)"); -static int timeout = WATCHDOG_TIMEOUT; /* in seconds */ +static int timeout; /* in seconds */ module_param(timeout, int, 0); MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds. 1 <= timeout <= 255, default=" @@ -76,236 +70,147 @@ MODULE_PARM_DESC(nowayout, (same as EFER) */ #define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */ -static void w83627hf_select_wd_register(void) +#define W83627HF_LD_WDT 0x08 + +static void superio_outb(int reg, int val) { - unsigned char c; + outb(reg, WDT_EFER); + outb(val, WDT_EFDR); +} + +static inline int superio_inb(int reg) +{ + outb(reg, WDT_EFER); + return inb(WDT_EFDR); +} + +static int superio_enter(void) +{ + if (!request_muxed_region(wdt_io, 2, WATCHDOG_NAME)) + return -EBUSY; + outb_p(0x87, WDT_EFER); /* Enter extended function mode */ outb_p(0x87, WDT_EFER); /* Again according to manual */ - outb(0x20, WDT_EFER); /* check chip version */ - c = inb(WDT_EFDR); - if (c == 0x82) { /* W83627THF */ - outb_p(0x2b, WDT_EFER); /* select GPIO3 */ - c = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */ - outb_p(0x2b, WDT_EFER); - outb_p(c, WDT_EFDR); /* set GPIO3 to WDT0 */ - } else if (c == 0x88 || c == 0xa0) { /* W83627EHF / W83627DHG */ - outb_p(0x2d, WDT_EFER); /* select GPIO5 */ - c = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */ - outb_p(0x2d, WDT_EFER); - outb_p(c, WDT_EFDR); /* set GPIO5 to WDT0 */ - } + return 0; +} - outb_p(0x07, WDT_EFER); /* point to logical device number reg */ - outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */ - outb_p(0x30, WDT_EFER); /* select CR30 */ - outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */ +static void superio_select(int ld) +{ + superio_outb(0x07, ld); } -static void w83627hf_unselect_wd_register(void) +static void superio_exit(void) { outb_p(0xAA, WDT_EFER); /* Leave extended function mode */ + release_region(wdt_io, 2); } /* tyan motherboards seem to set F5 to 0x4C ? * So explicitly init to appropriate value. */ -static void w83627hf_init(void) +static int w83627hf_init(struct watchdog_device *wdog) { + int ret; unsigned char t; - w83627hf_select_wd_register(); + ret = superio_enter(); + if (ret) + return ret; + + superio_select(W83627HF_LD_WDT); + t = superio_inb(0x20); /* check chip version */ + if (t == 0x82) { /* W83627THF */ + t = (superio_inb(0x2b) & 0xf7); + superio_outb(0x2b, t | 0x04); /* set GPIO3 to WDT0 */ + } else if (t == 0x88 || t == 0xa0) { /* W83627EHF / W83627DHG */ + t = superio_inb(0x2d); + superio_outb(0x2d, t & ~0x01); /* set GPIO5 to WDT0 */ + } + + /* set CR30 bit 0 to activate GPIO2 */ + t = superio_inb(0x30); + if (!(t & 0x01)) + superio_outb(0x30, t | 0x01); - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - t = inb_p(WDT_EFDR); /* read CRF6 */ + t = superio_inb(0xF6); if (t != 0) { pr_info("Watchdog already running. Resetting timeout to %d sec\n", - timeout); - outb_p(timeout, WDT_EFDR); /* Write back to CRF6 */ + wdog->timeout); + superio_outb(0xF6, wdog->timeout); } - outb_p(0xF5, WDT_EFER); /* Select CRF5 */ - t = inb_p(WDT_EFDR); /* read CRF5 */ - t &= ~0x0C; /* set second mode & disable keyboard - turning off watchdog */ - t |= 0x02; /* enable the WDTO# output low pulse - to the KBRST# pin (PIN60) */ - outb_p(t, WDT_EFDR); /* Write back to CRF5 */ - - outb_p(0xF7, WDT_EFER); /* Select CRF7 */ - t = inb_p(WDT_EFDR); /* read CRF7 */ - t &= ~0xC0; /* disable keyboard & mouse turning off - watchdog */ - outb_p(t, WDT_EFDR); /* Write back to CRF7 */ - - w83627hf_unselect_wd_register(); -} - -static void wdt_set_time(int timeout) -{ - spin_lock(&io_lock); - - w83627hf_select_wd_register(); + /* set second mode & disable keyboard turning off watchdog */ + t = superio_inb(0xF5) & ~0x0C; + /* enable the WDTO# output low pulse to the KBRST# pin */ + t |= 0x02; + superio_outb(0xF5, t); - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */ + /* disable keyboard & mouse turning off watchdog */ + t = superio_inb(0xF7) & ~0xC0; + superio_outb(0xF7, t); - w83627hf_unselect_wd_register(); + superio_exit(); - spin_unlock(&io_lock); -} - -static int wdt_ping(void) -{ - wdt_set_time(timeout); return 0; } -static int wdt_disable(void) +static int wdt_set_time(unsigned int timeout) { - wdt_set_time(0); - return 0; -} + int ret; + + ret = superio_enter(); + if (ret) + return ret; + + superio_select(W83627HF_LD_WDT); + superio_outb(0xF6, timeout); + superio_exit(); -static int wdt_set_heartbeat(int t) -{ - if (t < 1 || t > 255) - return -EINVAL; - timeout = t; return 0; } -static int wdt_get_time(void) +static int wdt_start(struct watchdog_device *wdog) { - int timeleft; - - spin_lock(&io_lock); - - w83627hf_select_wd_register(); - - outb_p(0xF6, WDT_EFER); /* Select CRF6 */ - timeleft = inb_p(WDT_EFDR); /* Read Timeout counter to CRF6 */ - - w83627hf_unselect_wd_register(); - - spin_unlock(&io_lock); - - return timeleft; + return wdt_set_time(wdog->timeout); } -static ssize_t wdt_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static int wdt_stop(struct watchdog_device *wdog) { - if (count) { - if (!nowayout) { - size_t i; - - expect_close = 0; - - for (i = 0; i != count; i++) { - char c; - if (get_user(c, buf + i)) - return -EFAULT; - if (c == 'V') - expect_close = 42; - } - } - wdt_ping(); - } - return count; + return wdt_set_time(0); } -static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout) { - void __user *argp = (void __user *)arg; - int __user *p = argp; - int timeval; - static const struct watchdog_info ident = { - .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | - WDIOF_MAGICCLOSE, - .firmware_version = 1, - .identity = "W83627HF WDT", - }; - - switch (cmd) { - case WDIOC_GETSUPPORT: - if (copy_to_user(argp, &ident, sizeof(ident))) - return -EFAULT; - break; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0, p); - case WDIOC_SETOPTIONS: - { - int options, retval = -EINVAL; - - if (get_user(options, p)) - return -EFAULT; - if (options & WDIOS_DISABLECARD) { - wdt_disable(); - retval = 0; - } - if (options & WDIOS_ENABLECARD) { - wdt_ping(); - retval = 0; - } - return retval; - } - case WDIOC_KEEPALIVE: - wdt_ping(); - break; - case WDIOC_SETTIMEOUT: - if (get_user(timeval, p)) - return -EFAULT; - if (wdt_set_heartbeat(timeval)) - return -EINVAL; - wdt_ping(); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(timeout, p); - case WDIOC_GETTIMELEFT: - timeval = wdt_get_time(); - return put_user(timeval, p); - default: - return -ENOTTY; - } + wdog->timeout = timeout; + return 0; } -static int wdt_open(struct inode *inode, struct file *file) +static unsigned int wdt_get_time(struct watchdog_device *wdog) { - if (test_and_set_bit(0, &wdt_is_open)) - return -EBUSY; - /* - * Activate - */ + unsigned int timeleft; + int ret; - wdt_ping(); - return nonseekable_open(inode, file); -} + ret = superio_enter(); + if (ret) + return 0; -static int wdt_close(struct inode *inode, struct file *file) -{ - if (expect_close == 42) - wdt_disable(); - else { - pr_crit("Unexpected close, not stopping watchdog!\n"); - wdt_ping(); - } - expect_close = 0; - clear_bit(0, &wdt_is_open); - return 0; + superio_select(W83627HF_LD_WDT); + timeleft = superio_inb(0xF6); + superio_exit(); + + return timeleft; } /* * Notifier for system down */ - static int wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused) { if (code == SYS_DOWN || code == SYS_HALT) - wdt_disable(); /* Turn the WDT off */ + wdt_set_time(0); /* Turn the WDT off */ return NOTIFY_DONE; } @@ -314,19 +219,25 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code, * Kernel Interfaces */ -static const struct file_operations wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = wdt_write, - .unlocked_ioctl = wdt_ioctl, - .open = wdt_open, - .release = wdt_close, +static struct watchdog_info wdt_info = { + .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, + .identity = "W83627HF Watchdog", }; -static struct miscdevice wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &wdt_fops, +static struct watchdog_ops wdt_ops = { + .owner = THIS_MODULE, + .start = wdt_start, + .stop = wdt_stop, + .set_timeout = wdt_set_timeout, + .get_timeleft = wdt_get_time, +}; + +static struct watchdog_device wdt_dev = { + .info = &wdt_info, + .ops = &wdt_ops, + .timeout = WATCHDOG_TIMEOUT, + .min_timeout = 1, + .max_timeout = 255, }; /* @@ -344,50 +255,39 @@ static int __init wdt_init(void) pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n"); - if (wdt_set_heartbeat(timeout)) { - wdt_set_heartbeat(WATCHDOG_TIMEOUT); - pr_info("timeout value must be 1 <= timeout <= 255, using %d\n", - WATCHDOG_TIMEOUT); - } + watchdog_init_timeout(&wdt_dev, timeout, NULL); + watchdog_set_nowayout(&wdt_dev, nowayout); - if (!request_region(wdt_io, 1, WATCHDOG_NAME)) { - pr_err("I/O address 0x%04x already in use\n", wdt_io); - ret = -EIO; - goto out; + ret = w83627hf_init(&wdt_dev); + if (ret) { + pr_err("failed to initialize watchdog (err=%d)\n", ret); + return ret; } - w83627hf_init(); - ret = register_reboot_notifier(&wdt_notifier); if (ret != 0) { pr_err("cannot register reboot notifier (err=%d)\n", ret); - goto unreg_regions; + return ret; } - ret = misc_register(&wdt_miscdev); - if (ret != 0) { - pr_err("cannot register miscdev on minor=%d (err=%d)\n", - WATCHDOG_MINOR, ret); + ret = watchdog_register_device(&wdt_dev); + if (ret) goto unreg_reboot; - } pr_info("initialized. timeout=%d sec (nowayout=%d)\n", - timeout, nowayout); + wdt_dev.timeout, nowayout); -out: return ret; + unreg_reboot: unregister_reboot_notifier(&wdt_notifier); -unreg_regions: - release_region(wdt_io, 1); - goto out; + return ret; } static void __exit wdt_exit(void) { - misc_deregister(&wdt_miscdev); + watchdog_unregister_device(&wdt_dev); unregister_reboot_notifier(&wdt_notifier); - release_region(wdt_io, 1); } module_init(wdt_init); @@ -396,4 +296,3 @@ module_exit(wdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Pádraig Brady <P@draigBrady.com>"); MODULE_DESCRIPTION("w83627hf/thf WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c index cd9f3c1e1af4..aaf2995d37f4 100644 --- a/drivers/watchdog/w83697hf_wdt.c +++ b/drivers/watchdog/w83697hf_wdt.c @@ -458,4 +458,3 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, " "Samuel Tardieu <sam@rfc1149.net>"); MODULE_DESCRIPTION("w83697hf/hg WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c index 274be0bfaf24..ff58cb74671f 100644 --- a/drivers/watchdog/w83697ug_wdt.c +++ b/drivers/watchdog/w83697ug_wdt.c @@ -395,4 +395,3 @@ module_exit(wdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Flemming Frandsen <ff@nrvissing.net>"); MODULE_DESCRIPTION("w83697ug/uf WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c index 7874ae06232b..f0483c75ed32 100644 --- a/drivers/watchdog/w83877f_wdt.c +++ b/drivers/watchdog/w83877f_wdt.c @@ -406,4 +406,3 @@ module_exit(w83877f_wdt_unload); MODULE_AUTHOR("Scott and Bill Jennings"); MODULE_DESCRIPTION("Driver for watchdog timer in w83877f chip"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c index 5d2c902825c2..91bf55a20024 100644 --- a/drivers/watchdog/w83977f_wdt.c +++ b/drivers/watchdog/w83977f_wdt.c @@ -527,4 +527,3 @@ module_exit(w83977f_wdt_exit); MODULE_AUTHOR("Jose Goncalves <jose.goncalves@inov.pt>"); MODULE_DESCRIPTION("Driver for watchdog timer in W83977F I/O chip"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c index 25aba6e00a23..db0da7ea4fd8 100644 --- a/drivers/watchdog/wafer5823wdt.c +++ b/drivers/watchdog/wafer5823wdt.c @@ -322,6 +322,5 @@ module_exit(wafwdt_exit); MODULE_AUTHOR("Justin Cormack"); MODULE_DESCRIPTION("ICP Wafer 5823 Single Board Computer WDT driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); /* end of wafer5823wdt.c */ diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c index 05d18b4c661b..461336c4519f 100644 --- a/drivers/watchdog/watchdog_core.c +++ b/drivers/watchdog/watchdog_core.c @@ -77,7 +77,7 @@ int watchdog_init_timeout(struct watchdog_device *wdd, watchdog_check_min_max_timeout(wdd); - /* try to get the tiemout module parameter first */ + /* try to get the timeout module parameter first */ if (!watchdog_timeout_invalid(wdd, timeout_parm)) { wdd->timeout = timeout_parm; return ret; diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c index 3045debd5411..0240c60d14e3 100644 --- a/drivers/watchdog/wdrtas.c +++ b/drivers/watchdog/wdrtas.c @@ -48,8 +48,6 @@ MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>"); MODULE_DESCRIPTION("RTAS watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); static bool wdrtas_nowayout = WATCHDOG_NOWAYOUT; static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0); diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c index ee4333c01109..e0206b5b7d89 100644 --- a/drivers/watchdog/wdt.c +++ b/drivers/watchdog/wdt.c @@ -664,6 +664,4 @@ module_exit(wdt_exit); MODULE_AUTHOR("Alan Cox"); MODULE_DESCRIPTION("Driver for ISA ICS watchdog cards (WDT500/501)"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); MODULE_LICENSE("GPL"); diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c index 5eec74053882..7355ddd0b207 100644 --- a/drivers/watchdog/wdt285.c +++ b/drivers/watchdog/wdt285.c @@ -224,7 +224,6 @@ static void __exit footbridge_watchdog_exit(void) MODULE_AUTHOR("Phil Blundell <pb@nexus.co.uk>"); MODULE_DESCRIPTION("Footbridge watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(soft_margin, int, 0); MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds"); diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c index 65a402344933..a8e6f87f60c9 100644 --- a/drivers/watchdog/wdt977.c +++ b/drivers/watchdog/wdt977.c @@ -507,4 +507,3 @@ module_exit(wd977_exit); MODULE_AUTHOR("Woody Suwalski <woodys@xandros.com>"); MODULE_DESCRIPTION("W83977AF Watchdog driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c index 36a54c0e32dd..ee89ba4dea63 100644 --- a/drivers/watchdog/wdt_pci.c +++ b/drivers/watchdog/wdt_pci.c @@ -744,5 +744,3 @@ module_pci_driver(wdtpci_driver); MODULE_AUTHOR("JP Nollmann, Alan Cox"); MODULE_DESCRIPTION("Driver for the ICS PCI-WDT500/501 watchdog cards"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS_MISCDEV(TEMP_MINOR); diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c index d4e47eda4182..e243bd01c774 100644 --- a/drivers/watchdog/wm831x_wdt.c +++ b/drivers/watchdog/wm831x_wdt.c @@ -184,7 +184,7 @@ static const struct watchdog_ops wm831x_wdt_ops = { static int wm831x_wdt_probe(struct platform_device *pdev) { struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent); - struct wm831x_pdata *chip_pdata; + struct wm831x_pdata *chip_pdata = dev_get_platdata(pdev->dev.parent); struct wm831x_watchdog_pdata *pdata; struct wm831x_wdt_drvdata *driver_data; struct watchdog_device *wm831x_wdt; @@ -231,12 +231,10 @@ static int wm831x_wdt_probe(struct platform_device *pdev) wm831x_wdt->timeout = wm831x_wdt_cfgs[i].time; /* Apply any configuration */ - if (pdev->dev.parent->platform_data) { - chip_pdata = pdev->dev.parent->platform_data; + if (chip_pdata) pdata = chip_pdata->watchdog; - } else { + else pdata = NULL; - } if (pdata) { reg &= ~(WM831X_WDOG_SECACT_MASK | WM831X_WDOG_PRIMACT_MASK | diff --git a/drivers/watchdog/xen_wdt.c b/drivers/watchdog/xen_wdt.c index 92ad33d0cb71..7a42dffd39e5 100644 --- a/drivers/watchdog/xen_wdt.c +++ b/drivers/watchdog/xen_wdt.c @@ -362,4 +362,3 @@ MODULE_AUTHOR("Jan Beulich <jbeulich@novell.com>"); MODULE_DESCRIPTION("Xen WatchDog Timer Driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c index d15f6e80479f..188825122aae 100644 --- a/drivers/xen/pci.c +++ b/drivers/xen/pci.c @@ -59,12 +59,12 @@ static int xen_add_device(struct device *dev) add.flags = XEN_PCI_DEV_EXTFN; #ifdef CONFIG_ACPI - handle = DEVICE_ACPI_HANDLE(&pci_dev->dev); + handle = ACPI_HANDLE(&pci_dev->dev); if (!handle && pci_dev->bus->bridge) - handle = DEVICE_ACPI_HANDLE(pci_dev->bus->bridge); + handle = ACPI_HANDLE(pci_dev->bus->bridge); #ifdef CONFIG_PCI_IOV if (!handle && pci_dev->is_virtfn) - handle = DEVICE_ACPI_HANDLE(physfn->bus->bridge); + handle = ACPI_HANDLE(physfn->bus->bridge); #endif if (handle) { acpi_status status; |