diff options
Diffstat (limited to 'drivers')
332 files changed, 6264 insertions, 6622 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 2d8de2f8c1ed..84fdfa70920a 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -82,7 +82,6 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); #ifdef CONFIG_ACPI_PROCFS_POWER extern struct proc_dir_entry *acpi_lock_ac_dir(void); extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); -static int acpi_ac_open_fs(struct inode *inode, struct file *file); #endif @@ -111,16 +110,6 @@ struct acpi_ac { #define to_acpi_ac(x) power_supply_get_drvdata(x) -#ifdef CONFIG_ACPI_PROCFS_POWER -static const struct file_operations acpi_ac_fops = { - .owner = THIS_MODULE, - .open = acpi_ac_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ @@ -209,11 +198,6 @@ static int acpi_ac_seq_show(struct seq_file *seq, void *offset) return 0; } -static int acpi_ac_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); -} - static int acpi_ac_add_fs(struct acpi_ac *ac) { struct proc_dir_entry *entry = NULL; @@ -228,9 +212,8 @@ static int acpi_ac_add_fs(struct acpi_ac *ac) } /* 'state' [R] */ - entry = proc_create_data(ACPI_AC_FILE_STATE, - S_IRUGO, acpi_device_dir(ac->device), - &acpi_ac_fops, ac); + entry = proc_create_single_data(ACPI_AC_FILE_STATE, S_IRUGO, + acpi_device_dir(ac->device), acpi_ac_seq_show, ac); if (!entry) return -ENODEV; return 0; diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index bdb24d636d9a..76550689ce10 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -81,14 +81,6 @@ MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); #ifdef CONFIG_ACPI_PROCFS_POWER extern struct proc_dir_entry *acpi_lock_battery_dir(void); extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); - -enum acpi_battery_files { - info_tag = 0, - state_tag, - alarm_tag, - ACPI_BATTERY_NUMFILES, -}; - #endif static const struct acpi_device_id battery_device_ids[] = { @@ -985,9 +977,10 @@ static const char *acpi_battery_units(const struct acpi_battery *battery) "mA" : "mW"; } -static int acpi_battery_print_info(struct seq_file *seq, int result) +static int acpi_battery_info_proc_show(struct seq_file *seq, void *offset) { struct acpi_battery *battery = seq->private; + int result = acpi_battery_update(battery, false); if (result) goto end; @@ -1041,9 +1034,10 @@ static int acpi_battery_print_info(struct seq_file *seq, int result) return result; } -static int acpi_battery_print_state(struct seq_file *seq, int result) +static int acpi_battery_state_proc_show(struct seq_file *seq, void *offset) { struct acpi_battery *battery = seq->private; + int result = acpi_battery_update(battery, false); if (result) goto end; @@ -1088,9 +1082,10 @@ static int acpi_battery_print_state(struct seq_file *seq, int result) return result; } -static int acpi_battery_print_alarm(struct seq_file *seq, int result) +static int acpi_battery_alarm_proc_show(struct seq_file *seq, void *offset) { struct acpi_battery *battery = seq->private; + int result = acpi_battery_update(battery, false); if (result) goto end; @@ -1142,82 +1137,22 @@ static ssize_t acpi_battery_write_alarm(struct file *file, return result; } -typedef int(*print_func)(struct seq_file *seq, int result); - -static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = { - acpi_battery_print_info, - acpi_battery_print_state, - acpi_battery_print_alarm, -}; - -static int acpi_battery_read(int fid, struct seq_file *seq) +static int acpi_battery_alarm_proc_open(struct inode *inode, struct file *file) { - struct acpi_battery *battery = seq->private; - int result = acpi_battery_update(battery, false); - return acpi_print_funcs[fid](seq, result); + return single_open(file, acpi_battery_alarm_proc_show, PDE_DATA(inode)); } -#define DECLARE_FILE_FUNCTIONS(_name) \ -static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \ -{ \ - return acpi_battery_read(_name##_tag, seq); \ -} \ -static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \ -{ \ - return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \ -} - -DECLARE_FILE_FUNCTIONS(info); -DECLARE_FILE_FUNCTIONS(state); -DECLARE_FILE_FUNCTIONS(alarm); - -#undef DECLARE_FILE_FUNCTIONS - -#define FILE_DESCRIPTION_RO(_name) \ - { \ - .name = __stringify(_name), \ - .mode = S_IRUGO, \ - .ops = { \ - .open = acpi_battery_##_name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ - .owner = THIS_MODULE, \ - }, \ - } - -#define FILE_DESCRIPTION_RW(_name) \ - { \ - .name = __stringify(_name), \ - .mode = S_IFREG | S_IRUGO | S_IWUSR, \ - .ops = { \ - .open = acpi_battery_##_name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .write = acpi_battery_write_##_name, \ - .release = single_release, \ - .owner = THIS_MODULE, \ - }, \ - } - -static const struct battery_file { - struct file_operations ops; - umode_t mode; - const char *name; -} acpi_battery_file[] = { - FILE_DESCRIPTION_RO(info), - FILE_DESCRIPTION_RO(state), - FILE_DESCRIPTION_RW(alarm), +static const struct file_operations acpi_battery_alarm_fops = { + .owner = THIS_MODULE, + .open = acpi_battery_alarm_proc_open, + .read = seq_read, + .write = acpi_battery_write_alarm, + .llseek = seq_lseek, + .release = single_release, }; -#undef FILE_DESCRIPTION_RO -#undef FILE_DESCRIPTION_RW - static int acpi_battery_add_fs(struct acpi_device *device) { - struct proc_dir_entry *entry = NULL; - int i; - printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded," " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); if (!acpi_device_dir(device)) { @@ -1227,28 +1162,24 @@ static int acpi_battery_add_fs(struct acpi_device *device) return -ENODEV; } - for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) { - entry = proc_create_data(acpi_battery_file[i].name, - acpi_battery_file[i].mode, - acpi_device_dir(device), - &acpi_battery_file[i].ops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - } + if (!proc_create_single_data("info", S_IRUGO, acpi_device_dir(device), + acpi_battery_info_proc_show, acpi_driver_data(device))) + return -ENODEV; + if (!proc_create_single_data("state", S_IRUGO, acpi_device_dir(device), + acpi_battery_state_proc_show, acpi_driver_data(device))) + return -ENODEV; + if (!proc_create_data("alarm", S_IFREG | S_IRUGO | S_IWUSR, + acpi_device_dir(device), &acpi_battery_alarm_fops, + acpi_driver_data(device))) + return -ENODEV; return 0; } static void acpi_battery_remove_fs(struct acpi_device *device) { - int i; if (!acpi_device_dir(device)) return; - for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) - remove_proc_entry(acpi_battery_file[i].name, - acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), acpi_battery_dir); + remove_proc_subtree(acpi_device_bid(device), acpi_battery_dir); acpi_device_dir(device) = NULL; } diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index f1cc4f9d31cd..2345a5ee2dbb 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -263,19 +263,6 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) return 0; } -static int acpi_button_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_button_state_seq_show, PDE_DATA(inode)); -} - -static const struct file_operations acpi_button_state_fops = { - .owner = THIS_MODULE, - .open = acpi_button_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int acpi_button_add_fs(struct acpi_device *device) { struct acpi_button *button = acpi_driver_data(device); @@ -311,9 +298,9 @@ static int acpi_button_add_fs(struct acpi_device *device) } /* create /proc/acpi/button/lid/LID/state */ - entry = proc_create_data(ACPI_BUTTON_FILE_STATE, - S_IRUGO, acpi_device_dir(device), - &acpi_button_state_fops, device); + entry = proc_create_single_data(ACPI_BUTTON_FILE_STATE, S_IRUGO, + acpi_device_dir(device), acpi_button_state_seq_show, + device); if (!entry) { ret = -ENODEV; goto remove_dev_dir; diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 4a3ac31c07d0..3b0118786b43 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -20,6 +20,7 @@ #include <linux/sizes.h> #include <linux/limits.h> #include <linux/clk/clk-conf.h> +#include <linux/platform_device.h> #include <asm/irq.h> @@ -193,14 +194,16 @@ static const struct dev_pm_ops amba_pm = { /* * Primecells are part of the Advanced Microcontroller Bus Architecture, * so we call the bus "amba". + * DMA configuration for platform and AMBA bus is same. So here we reuse + * platform's DMA config routine. */ struct bus_type amba_bustype = { .name = "amba", .dev_groups = amba_dev_groups, .match = amba_match, .uevent = amba_uevent, + .dma_configure = platform_dma_configure, .pm = &amba_pm, - .force_dma = true, }; static int __init amba_init(void) diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 513b260bcff1..a2398e28c295 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -500,57 +500,6 @@ void ata_eh_release(struct ata_port *ap) mutex_unlock(&ap->host->eh_mutex); } -/** - * ata_scsi_timed_out - SCSI layer time out callback - * @cmd: timed out SCSI command - * - * Handles SCSI layer timeout. We race with normal completion of - * the qc for @cmd. If the qc is already gone, we lose and let - * the scsi command finish (EH_HANDLED). Otherwise, the qc has - * timed out and EH should be invoked. Prevent ata_qc_complete() - * from finishing it by setting EH_SCHEDULED and return - * EH_NOT_HANDLED. - * - * TODO: kill this function once old EH is gone. - * - * LOCKING: - * Called from timer context - * - * RETURNS: - * EH_HANDLED or EH_NOT_HANDLED - */ -enum blk_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd) -{ - struct Scsi_Host *host = cmd->device->host; - struct ata_port *ap = ata_shost_to_port(host); - unsigned long flags; - struct ata_queued_cmd *qc; - enum blk_eh_timer_return ret; - - DPRINTK("ENTER\n"); - - if (ap->ops->error_handler) { - ret = BLK_EH_NOT_HANDLED; - goto out; - } - - ret = BLK_EH_HANDLED; - spin_lock_irqsave(ap->lock, flags); - qc = ata_qc_from_tag(ap, ap->link.active_tag); - if (qc) { - WARN_ON(qc->scsicmd != cmd); - qc->flags |= ATA_QCFLAG_EH_SCHEDULED; - qc->err_mask |= AC_ERR_TIMEOUT; - ret = BLK_EH_NOT_HANDLED; - } - spin_unlock_irqrestore(ap->lock, flags); - - out: - DPRINTK("EXIT, ret=%d\n", ret); - return ret; -} -EXPORT_SYMBOL(ata_scsi_timed_out); - static void ata_eh_unload(struct ata_port *ap) { struct ata_link *link; diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c index d82566d6e237..f831a582209c 100644 --- a/drivers/base/dma-mapping.c +++ b/drivers/base/dma-mapping.c @@ -329,36 +329,13 @@ void dma_common_free_remap(void *cpu_addr, size_t size, unsigned long vm_flags) #endif /* - * Common configuration to enable DMA API use for a device + * enables DMA API use for a device */ -#include <linux/pci.h> - int dma_configure(struct device *dev) { - struct device *bridge = NULL, *dma_dev = dev; - enum dev_dma_attr attr; - int ret = 0; - - if (dev_is_pci(dev)) { - bridge = pci_get_host_bridge_device(to_pci_dev(dev)); - dma_dev = bridge; - if (IS_ENABLED(CONFIG_OF) && dma_dev->parent && - dma_dev->parent->of_node) - dma_dev = dma_dev->parent; - } - - if (dma_dev->of_node) { - ret = of_dma_configure(dev, dma_dev->of_node); - } else if (has_acpi_companion(dma_dev)) { - attr = acpi_get_dma_attr(to_acpi_device_node(dma_dev->fwnode)); - if (attr != DEV_DMA_NOT_SUPPORTED) - ret = acpi_dma_configure(dev, attr); - } - - if (bridge) - pci_put_host_bridge_device(bridge); - - return ret; + if (dev->bus->dma_configure) + return dev->bus->dma_configure(dev); + return 0; } void dma_deconfigure(struct device *dev) diff --git a/drivers/base/platform-msi.c b/drivers/base/platform-msi.c index 8e22073aeeed..60d6cc618f1c 100644 --- a/drivers/base/platform-msi.c +++ b/drivers/base/platform-msi.c @@ -101,6 +101,9 @@ static void platform_msi_update_chip_ops(struct msi_domain_info *info) chip->irq_set_affinity = msi_domain_set_affinity; if (!chip->irq_write_msi_msg) chip->irq_write_msi_msg = platform_msi_write_msg; + if (WARN_ON((info->flags & MSI_FLAG_LEVEL_CAPABLE) && + !(chip->flags & IRQCHIP_SUPPORTS_LEVEL_MSI))) + info->flags &= ~MSI_FLAG_LEVEL_CAPABLE; } static void platform_msi_free_descs(struct device *dev, int base, int nvec) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 8075ddc70a17..c0ff1e73a634 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1130,6 +1130,22 @@ int platform_pm_restore(struct device *dev) #endif /* CONFIG_HIBERNATE_CALLBACKS */ +int platform_dma_configure(struct device *dev) +{ + enum dev_dma_attr attr; + int ret = 0; + + if (dev->of_node) { + ret = of_dma_configure(dev, dev->of_node, true); + } else if (has_acpi_companion(dev)) { + attr = acpi_get_dma_attr(to_acpi_device_node(dev->fwnode)); + if (attr != DEV_DMA_NOT_SUPPORTED) + ret = acpi_dma_configure(dev, attr); + } + + return ret; +} + static const struct dev_pm_ops platform_dev_pm_ops = { .runtime_suspend = pm_generic_runtime_suspend, .runtime_resume = pm_generic_runtime_resume, @@ -1141,8 +1157,8 @@ struct bus_type platform_bus_type = { .dev_groups = platform_dev_groups, .match = platform_match, .uevent = platform_uevent, + .dma_configure = platform_dma_configure, .pm = &platform_dev_pm_ops, - .force_dma = true, }; EXPORT_SYMBOL_GPL(platform_bus_type); diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c index 5cadfd3394d8..8741fb5f8f54 100644 --- a/drivers/base/regmap/regmap-mmio.c +++ b/drivers/base/regmap/regmap-mmio.c @@ -206,7 +206,8 @@ static void regmap_mmio_free_context(void *context) if (!IS_ERR(ctx->clk)) { clk_unprepare(ctx->clk); - clk_put(ctx->clk); + if (!ctx->attached_clk) + clk_put(ctx->clk); } kfree(context); } diff --git a/drivers/base/regmap/regmap-slimbus.c b/drivers/base/regmap/regmap-slimbus.c index c90bee81d954..91d501eda8a9 100644 --- a/drivers/base/regmap/regmap-slimbus.c +++ b/drivers/base/regmap/regmap-slimbus.c @@ -41,7 +41,7 @@ static struct regmap_bus regmap_slimbus_bus = { static const struct regmap_bus *regmap_get_slimbus(struct slim_device *slim, const struct regmap_config *config) { - if (config->val_bits == 8 && config->reg_bits == 8) + if (config->val_bits == 8 && config->reg_bits == 16) return ®map_slimbus_bus; return ERR_PTR(-ENOTSUPP); diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index e6986c7608f1..fc1f4acdd189 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -207,7 +207,7 @@ static void bcma_of_fill_device(struct device *parent, core->irq = bcma_of_get_irq(parent, core, 0); - of_dma_configure(&core->dev, node); + of_dma_configure(&core->dev, node, false); } unsigned int bcma_core_irq(struct bcma_device *core, int num) diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c index f781eff7d23e..6ca77d6047d6 100644 --- a/drivers/block/DAC960.c +++ b/drivers/block/DAC960.c @@ -1179,7 +1179,6 @@ static bool DAC960_V1_EnableMemoryMailboxInterface(DAC960_Controller_T if (pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32))) return DAC960_Failure(Controller, "DMA mask out of range"); - Controller->BounceBufferLimit = DMA_BIT_MASK(32); if ((hw_type == DAC960_PD_Controller) || (hw_type == DAC960_P_Controller)) { CommandMailboxesSize = 0; @@ -1380,11 +1379,8 @@ static bool DAC960_V2_EnableMemoryMailboxInterface(DAC960_Controller_T dma_addr_t CommandMailboxDMA; DAC960_V2_CommandStatus_T CommandStatus; - if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(64))) - Controller->BounceBufferLimit = DMA_BIT_MASK(64); - else if (!pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32))) - Controller->BounceBufferLimit = DMA_BIT_MASK(32); - else + if (pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(64)) && + pci_set_dma_mask(Controller->PCIDevice, DMA_BIT_MASK(32))) return DAC960_Failure(Controller, "DMA mask out of range"); /* This is a temporary dma mapping, used only in the scope of this function */ @@ -2540,7 +2536,6 @@ static bool DAC960_RegisterBlockDevice(DAC960_Controller_T *Controller) continue; } Controller->RequestQueue[n] = RequestQueue; - blk_queue_bounce_limit(RequestQueue, Controller->BounceBufferLimit); RequestQueue->queuedata = Controller; blk_queue_max_segments(RequestQueue, Controller->DriverScatterGatherLimit); blk_queue_max_hw_sectors(RequestQueue, Controller->MaxBlocksPerCommand); @@ -6451,19 +6446,6 @@ static int dac960_proc_show(struct seq_file *m, void *v) return 0; } -static int dac960_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, dac960_proc_show, NULL); -} - -static const struct file_operations dac960_proc_fops = { - .owner = THIS_MODULE, - .open = dac960_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int dac960_initial_status_proc_show(struct seq_file *m, void *v) { DAC960_Controller_T *Controller = (DAC960_Controller_T *)m->private; @@ -6471,19 +6453,6 @@ static int dac960_initial_status_proc_show(struct seq_file *m, void *v) return 0; } -static int dac960_initial_status_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, dac960_initial_status_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations dac960_initial_status_proc_fops = { - .owner = THIS_MODULE, - .open = dac960_initial_status_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int dac960_current_status_proc_show(struct seq_file *m, void *v) { DAC960_Controller_T *Controller = (DAC960_Controller_T *) m->private; @@ -6517,19 +6486,6 @@ static int dac960_current_status_proc_show(struct seq_file *m, void *v) return 0; } -static int dac960_current_status_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, dac960_current_status_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations dac960_current_status_proc_fops = { - .owner = THIS_MODULE, - .open = dac960_current_status_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int dac960_user_command_proc_show(struct seq_file *m, void *v) { DAC960_Controller_T *Controller = (DAC960_Controller_T *)m->private; @@ -6584,17 +6540,19 @@ static void DAC960_CreateProcEntries(DAC960_Controller_T *Controller) if (DAC960_ProcDirectoryEntry == NULL) { DAC960_ProcDirectoryEntry = proc_mkdir("rd", NULL); - proc_create("status", 0, DAC960_ProcDirectoryEntry, - &dac960_proc_fops); + proc_create_single("status", 0, DAC960_ProcDirectoryEntry, + dac960_proc_show); } snprintf(Controller->ControllerName, sizeof(Controller->ControllerName), "c%d", Controller->ControllerNumber); ControllerProcEntry = proc_mkdir(Controller->ControllerName, DAC960_ProcDirectoryEntry); - proc_create_data("initial_status", 0, ControllerProcEntry, &dac960_initial_status_proc_fops, Controller); - proc_create_data("current_status", 0, ControllerProcEntry, &dac960_current_status_proc_fops, Controller); - proc_create_data("user_command", S_IWUSR | S_IRUSR, ControllerProcEntry, &dac960_user_command_proc_fops, Controller); + proc_create_single_data("initial_status", 0, ControllerProcEntry, + dac960_initial_status_proc_show, Controller); + proc_create_single_data("current_status", 0, ControllerProcEntry, + dac960_current_status_proc_show, Controller); + proc_create_data("user_command", 0600, ControllerProcEntry, &dac960_user_command_proc_fops, Controller); Controller->ControllerProcEntry = ControllerProcEntry; } diff --git a/drivers/block/DAC960.h b/drivers/block/DAC960.h index 21aff470d268..1439e651928b 100644 --- a/drivers/block/DAC960.h +++ b/drivers/block/DAC960.h @@ -2295,7 +2295,6 @@ typedef struct DAC960_Controller unsigned short MaxBlocksPerCommand; unsigned short ControllerScatterGatherLimit; unsigned short DriverScatterGatherLimit; - u64 BounceBufferLimit; unsigned int CombinedStatusBufferLength; unsigned int InitialStatusLength; unsigned int CurrentStatusLength; diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 6797e6c23c8a..429ebb84b592 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -159,14 +159,14 @@ static int aoe_debugfs_open(struct inode *inode, struct file *file) return single_open(file, aoedisk_debugfs_show, inode->i_private); } -static DEVICE_ATTR(state, S_IRUGO, aoedisk_show_state, NULL); -static DEVICE_ATTR(mac, S_IRUGO, aoedisk_show_mac, NULL); -static DEVICE_ATTR(netif, S_IRUGO, aoedisk_show_netif, NULL); +static DEVICE_ATTR(state, 0444, aoedisk_show_state, NULL); +static DEVICE_ATTR(mac, 0444, aoedisk_show_mac, NULL); +static DEVICE_ATTR(netif, 0444, aoedisk_show_netif, NULL); static struct device_attribute dev_attr_firmware_version = { - .attr = { .name = "firmware-version", .mode = S_IRUGO }, + .attr = { .name = "firmware-version", .mode = 0444 }, .show = aoedisk_show_fwver, }; -static DEVICE_ATTR(payload, S_IRUGO, aoedisk_show_payload, NULL); +static DEVICE_ATTR(payload, 0444, aoedisk_show_payload, NULL); static struct attribute *aoe_attrs[] = { &dev_attr_state.attr, @@ -388,7 +388,6 @@ aoeblk_gdalloc(void *vp) d->aoemajor, d->aoeminor); goto err_mempool; } - blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH); spin_lock_irqsave(&d->lock, flags); WARN_ON(!(d->flags & DEVFL_GD_NOW)); diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 540bb60cd071..096882e54095 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -1032,8 +1032,9 @@ bvcpy(struct sk_buff *skb, struct bio *bio, struct bvec_iter iter, long cnt) iter.bi_size = cnt; __bio_for_each_segment(bv, bio, iter, iter) { - char *p = page_address(bv.bv_page) + bv.bv_offset; + char *p = kmap_atomic(bv.bv_page) + bv.bv_offset; skb_copy_bits(skb, soff, p, bv.bv_len); + kunmap_atomic(p); soff += bv.bv_len; } } diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 66cb0f857f64..bb976598ee43 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -331,15 +331,15 @@ static const struct block_device_operations brd_fops = { * And now the modules code and kernel interface. */ static int rd_nr = CONFIG_BLK_DEV_RAM_COUNT; -module_param(rd_nr, int, S_IRUGO); +module_param(rd_nr, int, 0444); MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); unsigned long rd_size = CONFIG_BLK_DEV_RAM_SIZE; -module_param(rd_size, ulong, S_IRUGO); +module_param(rd_size, ulong, 0444); MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); static int max_part = 1; -module_param(max_part, int, S_IRUGO); +module_param(max_part, int, 0444); MODULE_PARM_DESC(max_part, "Num Minors to reserve between devices"); MODULE_LICENSE("GPL"); @@ -402,6 +402,10 @@ static struct brd_device *brd_alloc(int i) set_capacity(disk, rd_size * 2); disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO; + /* Tell the block layer that this is not a rotational device */ + blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue); + blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue); + return brd; out_free_queue: diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 9f4e6f502b84..11a85b740327 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -977,7 +977,7 @@ static void drbd_bm_endio(struct bio *bio) bm_page_unlock_io(device, idx); if (ctx->flags & BM_AIO_COPY_PAGES) - mempool_free(bio->bi_io_vec[0].bv_page, drbd_md_io_page_pool); + mempool_free(bio->bi_io_vec[0].bv_page, &drbd_md_io_page_pool); bio_put(bio); @@ -1014,7 +1014,8 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho bm_set_page_unchanged(b->bm_pages[page_nr]); if (ctx->flags & BM_AIO_COPY_PAGES) { - page = mempool_alloc(drbd_md_io_page_pool, __GFP_HIGHMEM|__GFP_RECLAIM); + page = mempool_alloc(&drbd_md_io_page_pool, + GFP_NOIO | __GFP_HIGHMEM); copy_highpage(page, b->bm_pages[page_nr]); bm_store_page_idx(page, page_nr); } else diff --git a/drivers/block/drbd/drbd_debugfs.c b/drivers/block/drbd/drbd_debugfs.c index ab21976a87b2..5d5e8d6a8a56 100644 --- a/drivers/block/drbd/drbd_debugfs.c +++ b/drivers/block/drbd/drbd_debugfs.c @@ -481,9 +481,9 @@ void drbd_debugfs_resource_add(struct drbd_resource *resource) goto fail; resource->debugfs_res_connections = dentry; - dentry = debugfs_create_file("in_flight_summary", S_IRUSR|S_IRGRP, - resource->debugfs_res, resource, - &in_flight_summary_fops); + dentry = debugfs_create_file("in_flight_summary", 0440, + resource->debugfs_res, resource, + &in_flight_summary_fops); if (IS_ERR_OR_NULL(dentry)) goto fail; resource->debugfs_res_in_flight_summary = dentry; @@ -645,16 +645,16 @@ void drbd_debugfs_connection_add(struct drbd_connection *connection) goto fail; connection->debugfs_conn = dentry; - dentry = debugfs_create_file("callback_history", S_IRUSR|S_IRGRP, - connection->debugfs_conn, connection, - &connection_callback_history_fops); + dentry = debugfs_create_file("callback_history", 0440, + connection->debugfs_conn, connection, + &connection_callback_history_fops); if (IS_ERR_OR_NULL(dentry)) goto fail; connection->debugfs_conn_callback_history = dentry; - dentry = debugfs_create_file("oldest_requests", S_IRUSR|S_IRGRP, - connection->debugfs_conn, connection, - &connection_oldest_requests_fops); + dentry = debugfs_create_file("oldest_requests", 0440, + connection->debugfs_conn, connection, + &connection_oldest_requests_fops); if (IS_ERR_OR_NULL(dentry)) goto fail; connection->debugfs_conn_oldest_requests = dentry; @@ -824,7 +824,7 @@ void drbd_debugfs_device_add(struct drbd_device *device) device->debugfs_minor = dentry; #define DCF(name) do { \ - dentry = debugfs_create_file(#name, S_IRUSR|S_IRGRP, \ + dentry = debugfs_create_file(#name, 0440, \ device->debugfs_vol, device, \ &device_ ## name ## _fops); \ if (IS_ERR_OR_NULL(dentry)) \ diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 06ecee1b528e..bc4ed2ed40a2 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1405,8 +1405,8 @@ extern struct kmem_cache *drbd_request_cache; extern struct kmem_cache *drbd_ee_cache; /* peer requests */ extern struct kmem_cache *drbd_bm_ext_cache; /* bitmap extents */ extern struct kmem_cache *drbd_al_ext_cache; /* activity log extents */ -extern mempool_t *drbd_request_mempool; -extern mempool_t *drbd_ee_mempool; +extern mempool_t drbd_request_mempool; +extern mempool_t drbd_ee_mempool; /* drbd's page pool, used to buffer data received from the peer, * or data requested by the peer. @@ -1432,16 +1432,16 @@ extern wait_queue_head_t drbd_pp_wait; * 128 should be plenty, currently we probably can get away with as few as 1. */ #define DRBD_MIN_POOL_PAGES 128 -extern mempool_t *drbd_md_io_page_pool; +extern mempool_t drbd_md_io_page_pool; /* We also need to make sure we get a bio * when we need it for housekeeping purposes */ -extern struct bio_set *drbd_md_io_bio_set; +extern struct bio_set drbd_md_io_bio_set; /* to allocate from that set */ extern struct bio *bio_alloc_drbd(gfp_t gfp_mask); /* And a bio_set for cloning */ -extern struct bio_set *drbd_io_bio_set; +extern struct bio_set drbd_io_bio_set; extern struct mutex resources_mutex; @@ -1643,7 +1643,7 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin /* drbd_proc.c */ extern struct proc_dir_entry *drbd_proc; -extern const struct file_operations drbd_proc_fops; +int drbd_seq_show(struct seq_file *seq, void *v); /* drbd_actlog.c */ extern bool drbd_al_begin_io_prepare(struct drbd_device *device, struct drbd_interval *i); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 185f1ef00a7c..7655d6133139 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -124,11 +124,11 @@ struct kmem_cache *drbd_request_cache; struct kmem_cache *drbd_ee_cache; /* peer requests */ struct kmem_cache *drbd_bm_ext_cache; /* bitmap extents */ struct kmem_cache *drbd_al_ext_cache; /* activity log extents */ -mempool_t *drbd_request_mempool; -mempool_t *drbd_ee_mempool; -mempool_t *drbd_md_io_page_pool; -struct bio_set *drbd_md_io_bio_set; -struct bio_set *drbd_io_bio_set; +mempool_t drbd_request_mempool; +mempool_t drbd_ee_mempool; +mempool_t drbd_md_io_page_pool; +struct bio_set drbd_md_io_bio_set; +struct bio_set drbd_io_bio_set; /* I do not use a standard mempool, because: 1) I want to hand out the pre-allocated objects first. @@ -153,10 +153,10 @@ struct bio *bio_alloc_drbd(gfp_t gfp_mask) { struct bio *bio; - if (!drbd_md_io_bio_set) + if (!bioset_initialized(&drbd_md_io_bio_set)) return bio_alloc(gfp_mask, 1); - bio = bio_alloc_bioset(gfp_mask, 1, drbd_md_io_bio_set); + bio = bio_alloc_bioset(gfp_mask, 1, &drbd_md_io_bio_set); if (!bio) return NULL; return bio; @@ -2097,16 +2097,11 @@ static void drbd_destroy_mempools(void) /* D_ASSERT(device, atomic_read(&drbd_pp_vacant)==0); */ - if (drbd_io_bio_set) - bioset_free(drbd_io_bio_set); - if (drbd_md_io_bio_set) - bioset_free(drbd_md_io_bio_set); - if (drbd_md_io_page_pool) - mempool_destroy(drbd_md_io_page_pool); - if (drbd_ee_mempool) - mempool_destroy(drbd_ee_mempool); - if (drbd_request_mempool) - mempool_destroy(drbd_request_mempool); + bioset_exit(&drbd_io_bio_set); + bioset_exit(&drbd_md_io_bio_set); + mempool_exit(&drbd_md_io_page_pool); + mempool_exit(&drbd_ee_mempool); + mempool_exit(&drbd_request_mempool); if (drbd_ee_cache) kmem_cache_destroy(drbd_ee_cache); if (drbd_request_cache) @@ -2116,11 +2111,6 @@ static void drbd_destroy_mempools(void) if (drbd_al_ext_cache) kmem_cache_destroy(drbd_al_ext_cache); - drbd_io_bio_set = NULL; - drbd_md_io_bio_set = NULL; - drbd_md_io_page_pool = NULL; - drbd_ee_mempool = NULL; - drbd_request_mempool = NULL; drbd_ee_cache = NULL; drbd_request_cache = NULL; drbd_bm_ext_cache = NULL; @@ -2133,18 +2123,7 @@ static int drbd_create_mempools(void) { struct page *page; const int number = (DRBD_MAX_BIO_SIZE/PAGE_SIZE) * drbd_minor_count; - int i; - - /* prepare our caches and mempools */ - drbd_request_mempool = NULL; - drbd_ee_cache = NULL; - drbd_request_cache = NULL; - drbd_bm_ext_cache = NULL; - drbd_al_ext_cache = NULL; - drbd_pp_pool = NULL; - drbd_md_io_page_pool = NULL; - drbd_md_io_bio_set = NULL; - drbd_io_bio_set = NULL; + int i, ret; /* caches */ drbd_request_cache = kmem_cache_create( @@ -2168,26 +2147,26 @@ static int drbd_create_mempools(void) goto Enomem; /* mempools */ - drbd_io_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0); - if (drbd_io_bio_set == NULL) + ret = bioset_init(&drbd_io_bio_set, BIO_POOL_SIZE, 0, 0); + if (ret) goto Enomem; - drbd_md_io_bio_set = bioset_create(DRBD_MIN_POOL_PAGES, 0, - BIOSET_NEED_BVECS); - if (drbd_md_io_bio_set == NULL) + ret = bioset_init(&drbd_md_io_bio_set, DRBD_MIN_POOL_PAGES, 0, + BIOSET_NEED_BVECS); + if (ret) goto Enomem; - drbd_md_io_page_pool = mempool_create_page_pool(DRBD_MIN_POOL_PAGES, 0); - if (drbd_md_io_page_pool == NULL) + ret = mempool_init_page_pool(&drbd_md_io_page_pool, DRBD_MIN_POOL_PAGES, 0); + if (ret) goto Enomem; - drbd_request_mempool = mempool_create_slab_pool(number, - drbd_request_cache); - if (drbd_request_mempool == NULL) + ret = mempool_init_slab_pool(&drbd_request_mempool, number, + drbd_request_cache); + if (ret) goto Enomem; - drbd_ee_mempool = mempool_create_slab_pool(number, drbd_ee_cache); - if (drbd_ee_mempool == NULL) + ret = mempool_init_slab_pool(&drbd_ee_mempool, number, drbd_ee_cache); + if (ret) goto Enomem; /* drbd's page pool */ @@ -3010,7 +2989,7 @@ static int __init drbd_init(void) goto fail; err = -ENOMEM; - drbd_proc = proc_create_data("drbd", S_IFREG | S_IRUGO , NULL, &drbd_proc_fops, NULL); + drbd_proc = proc_create_single("drbd", S_IFREG | 0444 , NULL, drbd_seq_show); if (!drbd_proc) { pr_err("unable to register proc file\n"); goto fail; diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 582caeb0de86..74ef29247bb5 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -33,18 +33,7 @@ #include <linux/drbd.h> #include "drbd_int.h" -static int drbd_proc_open(struct inode *inode, struct file *file); -static int drbd_proc_release(struct inode *inode, struct file *file); - - struct proc_dir_entry *drbd_proc; -const struct file_operations drbd_proc_fops = { - .owner = THIS_MODULE, - .open = drbd_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = drbd_proc_release, -}; static void seq_printf_with_thousands_grouping(struct seq_file *seq, long v) { @@ -235,7 +224,7 @@ static void drbd_syncer_progress(struct drbd_device *device, struct seq_file *se } } -static int drbd_seq_show(struct seq_file *seq, void *v) +int drbd_seq_show(struct seq_file *seq, void *v) { int i, prev_i = -1; const char *sn; @@ -345,24 +334,3 @@ static int drbd_seq_show(struct seq_file *seq, void *v) return 0; } - -static int drbd_proc_open(struct inode *inode, struct file *file) -{ - int err; - - if (try_module_get(THIS_MODULE)) { - err = single_open(file, drbd_seq_show, NULL); - if (err) - module_put(THIS_MODULE); - return err; - } - return -ENODEV; -} - -static int drbd_proc_release(struct inode *inode, struct file *file) -{ - module_put(THIS_MODULE); - return single_release(inode, file); -} - -/* PROC FS stuff end */ diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index c72dee0ef083..be9450f5ad1c 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -378,7 +378,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto if (drbd_insert_fault(device, DRBD_FAULT_AL_EE)) return NULL; - peer_req = mempool_alloc(drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM); + peer_req = mempool_alloc(&drbd_ee_mempool, gfp_mask & ~__GFP_HIGHMEM); if (!peer_req) { if (!(gfp_mask & __GFP_NOWARN)) drbd_err(device, "%s: allocation failed\n", __func__); @@ -409,7 +409,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto return peer_req; fail: - mempool_free(peer_req, drbd_ee_mempool); + mempool_free(peer_req, &drbd_ee_mempool); return NULL; } @@ -426,7 +426,7 @@ void __drbd_free_peer_req(struct drbd_device *device, struct drbd_peer_request * peer_req->flags &= ~EE_CALL_AL_COMPLETE_IO; drbd_al_complete_io(device, &peer_req->i); } - mempool_free(peer_req, drbd_ee_mempool); + mempool_free(peer_req, &drbd_ee_mempool); } int drbd_free_peer_reqs(struct drbd_device *device, struct list_head *list) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index a500e738d929..a47e4987ee46 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -55,7 +55,7 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device, struct bio { struct drbd_request *req; - req = mempool_alloc(drbd_request_mempool, GFP_NOIO); + req = mempool_alloc(&drbd_request_mempool, GFP_NOIO); if (!req) return NULL; memset(req, 0, sizeof(*req)); @@ -184,7 +184,7 @@ void drbd_req_destroy(struct kref *kref) } } - mempool_free(req, drbd_request_mempool); + mempool_free(req, &drbd_request_mempool); } static void wake_all_senders(struct drbd_connection *connection) diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index cb97b3b30962..94c654020f0f 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -269,7 +269,7 @@ enum drbd_req_state_bits { static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bio *bio_src) { struct bio *bio; - bio = bio_clone_fast(bio_src, GFP_NOIO, drbd_io_bio_set); + bio = bio_clone_fast(bio_src, GFP_NOIO, &drbd_io_bio_set); req->private_bio = bio; diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 8ec7235fc93b..8871b5044d9e 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4450,7 +4450,7 @@ static ssize_t floppy_cmos_show(struct device *dev, return sprintf(buf, "%X\n", UDP->cmos); } -static DEVICE_ATTR(cmos, S_IRUGO, floppy_cmos_show, NULL); +static DEVICE_ATTR(cmos, 0444, floppy_cmos_show, NULL); static struct attribute *floppy_dev_attrs[] = { &dev_attr_cmos.attr, diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 55cf554bc914..4838b0dbaad3 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -732,7 +732,7 @@ static ssize_t loop_attr_do_show_##_name(struct device *d, \ return loop_attr_show(d, b, loop_attr_##_name##_show); \ } \ static struct device_attribute loop_attr_##_name = \ - __ATTR(_name, S_IRUGO, loop_attr_do_show_##_name, NULL); + __ATTR(_name, 0444, loop_attr_do_show_##_name, NULL); static ssize_t loop_attr_backing_file_show(struct loop_device *lo, char *buf) { @@ -809,16 +809,17 @@ static struct attribute_group loop_attribute_group = { .attrs= loop_attrs, }; -static int loop_sysfs_init(struct loop_device *lo) +static void loop_sysfs_init(struct loop_device *lo) { - return sysfs_create_group(&disk_to_dev(lo->lo_disk)->kobj, - &loop_attribute_group); + lo->sysfs_inited = !sysfs_create_group(&disk_to_dev(lo->lo_disk)->kobj, + &loop_attribute_group); } static void loop_sysfs_exit(struct loop_device *lo) { - sysfs_remove_group(&disk_to_dev(lo->lo_disk)->kobj, - &loop_attribute_group); + if (lo->sysfs_inited) + sysfs_remove_group(&disk_to_dev(lo->lo_disk)->kobj, + &loop_attribute_group); } static void loop_config_discard(struct loop_device *lo) @@ -1677,9 +1678,9 @@ static const struct block_device_operations lo_fops = { * And now the modules code and kernel interface. */ static int max_loop; -module_param(max_loop, int, S_IRUGO); +module_param(max_loop, int, 0444); MODULE_PARM_DESC(max_loop, "Maximum number of loop devices"); -module_param(max_part, int, S_IRUGO); +module_param(max_part, int, 0444); MODULE_PARM_DESC(max_part, "Maximum number of partitions per loop device"); MODULE_LICENSE("GPL"); MODULE_ALIAS_BLOCKDEV_MAJOR(LOOP_MAJOR); diff --git a/drivers/block/loop.h b/drivers/block/loop.h index b78de9879f4f..4d42c7af7de7 100644 --- a/drivers/block/loop.h +++ b/drivers/block/loop.h @@ -58,6 +58,7 @@ struct loop_device { struct kthread_worker worker; struct task_struct *worker_task; bool use_dio; + bool sysfs_inited; struct request_queue *lo_queue; struct blk_mq_tag_set tag_set; diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 769c551e3d71..c73626decb46 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2285,7 +2285,7 @@ static ssize_t mtip_hw_show_status(struct device *dev, return size; } -static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); +static DEVICE_ATTR(status, 0444, mtip_hw_show_status, NULL); /* debugsfs entries */ @@ -2566,10 +2566,9 @@ static int mtip_hw_debugfs_init(struct driver_data *dd) return -1; } - debugfs_create_file("flags", S_IRUGO, dd->dfs_node, dd, - &mtip_flags_fops); - debugfs_create_file("registers", S_IRUGO, dd->dfs_node, dd, - &mtip_regs_fops); + debugfs_create_file("flags", 0444, dd->dfs_node, dd, &mtip_flags_fops); + debugfs_create_file("registers", 0444, dd->dfs_node, dd, + &mtip_regs_fops); return 0; } @@ -2726,15 +2725,11 @@ static void mtip_softirq_done_fn(struct request *rq) blk_mq_end_request(rq, cmd->status); } -static void mtip_abort_cmd(struct request *req, void *data, - bool reserved) +static void mtip_abort_cmd(struct request *req, void *data, bool reserved) { struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req); struct driver_data *dd = data; - if (!blk_mq_request_started(req)) - return; - dbg_printk(MTIP_DRV_NAME " Aborting request, tag = %d\n", req->tag); clear_bit(req->tag, dd->port->cmds_to_issue); @@ -2742,14 +2737,10 @@ static void mtip_abort_cmd(struct request *req, void *data, mtip_softirq_done_fn(req); } -static void mtip_queue_cmd(struct request *req, void *data, - bool reserved) +static void mtip_queue_cmd(struct request *req, void *data, bool reserved) { struct driver_data *dd = data; - if (!blk_mq_request_started(req)) - return; - set_bit(req->tag, dd->port->cmds_to_issue); blk_abort_request(req); } @@ -3720,7 +3711,8 @@ static enum blk_eh_timer_return mtip_cmd_timeout(struct request *req, struct mtip_cmd *cmd = blk_mq_rq_to_pdu(req); cmd->status = BLK_STS_TIMEOUT; - return BLK_EH_HANDLED; + blk_mq_complete_request(req); + return BLK_EH_DONE; } if (test_bit(req->tag, dd->port->cmds_to_issue)) @@ -3862,7 +3854,6 @@ skip_create_disk: blk_queue_max_hw_sectors(dd->queue, 0xffff); blk_queue_max_segment_size(dd->queue, 0x400000); blk_queue_io_min(dd->queue, 4096); - blk_queue_bounce_limit(dd->queue, dd->pdev->dma_mask); /* Signal trim support */ if (dd->trim_supp == true) { @@ -4273,7 +4264,7 @@ static int mtip_pci_probe(struct pci_dev *pdev, if (!dd->isr_workq) { dev_warn(&pdev->dev, "Can't create wq %d\n", dd->instance); rv = -ENOMEM; - goto block_initialize_err; + goto setmask_err; } memset(cpu_list, 0, sizeof(cpu_list)); @@ -4614,7 +4605,7 @@ static int __init mtip_init(void) } if (dfs_parent) { dfs_device_status = debugfs_create_file("device_status", - S_IRUGO, dfs_parent, NULL, + 0444, dfs_parent, NULL, &mtip_device_status_fops); if (IS_ERR_OR_NULL(dfs_device_status)) { pr_err("Error creating device_status node\n"); diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index afbc202ca6fd..3ed1ef8ee528 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -166,16 +166,19 @@ static ssize_t pid_show(struct device *dev, } static const struct device_attribute pid_attr = { - .attr = { .name = "pid", .mode = S_IRUGO}, + .attr = { .name = "pid", .mode = 0444}, .show = pid_show, }; static void nbd_dev_remove(struct nbd_device *nbd) { struct gendisk *disk = nbd->disk; + struct request_queue *q; + if (disk) { + q = disk->queue; del_gendisk(disk); - blk_cleanup_queue(disk->queue); + blk_cleanup_queue(q); blk_mq_free_tag_set(&nbd->tag_set); disk->private_data = NULL; put_disk(disk); @@ -213,7 +216,15 @@ static void nbd_mark_nsock_dead(struct nbd_device *nbd, struct nbd_sock *nsock, } if (!nsock->dead) { kernel_sock_shutdown(nsock->sock, SHUT_RDWR); - atomic_dec(&nbd->config->live_connections); + if (atomic_dec_return(&nbd->config->live_connections) == 0) { + if (test_and_clear_bit(NBD_DISCONNECT_REQUESTED, + &nbd->config->runtime_flags)) { + set_bit(NBD_DISCONNECTED, + &nbd->config->runtime_flags); + dev_info(nbd_to_dev(nbd), + "Disconnected due to user request.\n"); + } + } } nsock->dead = true; nsock->pending = NULL; @@ -231,9 +242,22 @@ static void nbd_size_clear(struct nbd_device *nbd) static void nbd_size_update(struct nbd_device *nbd) { struct nbd_config *config = nbd->config; + struct block_device *bdev = bdget_disk(nbd->disk, 0); + + if (config->flags & NBD_FLAG_SEND_TRIM) { + nbd->disk->queue->limits.discard_granularity = config->blksize; + blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX); + } blk_queue_logical_block_size(nbd->disk->queue, config->blksize); blk_queue_physical_block_size(nbd->disk->queue, config->blksize); set_capacity(nbd->disk, config->bytesize >> 9); + if (bdev) { + if (bdev->bd_disk) + bd_set_size(bdev, config->bytesize); + else + bdev->bd_invalidated = 1; + bdput(bdev); + } kobject_uevent(&nbd_to_dev(nbd)->kobj, KOBJ_CHANGE); } @@ -243,6 +267,8 @@ static void nbd_size_set(struct nbd_device *nbd, loff_t blocksize, struct nbd_config *config = nbd->config; config->blksize = blocksize; config->bytesize = blocksize * nr_blocks; + if (nbd->task_recv != NULL) + nbd_size_update(nbd); } static void nbd_complete_rq(struct request *req) @@ -286,13 +312,15 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req, if (!refcount_inc_not_zero(&nbd->config_refs)) { cmd->status = BLK_STS_TIMEOUT; - return BLK_EH_HANDLED; + goto done; } config = nbd->config; if (config->num_connections > 1) { dev_err_ratelimited(nbd_to_dev(nbd), - "Connection timed out, retrying\n"); + "Connection timed out, retrying (%d/%d alive)\n", + atomic_read(&config->live_connections), + config->num_connections); /* * Hooray we have more connections, requeue this IO, the submit * path will put it on a real connection. @@ -314,7 +342,7 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req, } blk_mq_requeue_request(req, true); nbd_config_put(nbd); - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; } } else { dev_err_ratelimited(nbd_to_dev(nbd), @@ -324,8 +352,9 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req, cmd->status = BLK_STS_IOERR; sock_shutdown(nbd); nbd_config_put(nbd); - - return BLK_EH_HANDLED; +done: + blk_mq_complete_request(req); + return BLK_EH_DONE; } /* @@ -647,11 +676,8 @@ static void recv_work(struct work_struct *work) static void nbd_clear_req(struct request *req, void *data, bool reserved) { - struct nbd_cmd *cmd; + struct nbd_cmd *cmd = blk_mq_rq_to_pdu(req); - if (!blk_mq_request_started(req)) - return; - cmd = blk_mq_rq_to_pdu(req); cmd->status = BLK_STS_IOERR; blk_mq_complete_request(req); } @@ -714,10 +740,9 @@ static int wait_for_reconnect(struct nbd_device *nbd) return 0; if (test_bit(NBD_DISCONNECTED, &config->runtime_flags)) return 0; - wait_event_timeout(config->conn_wait, - atomic_read(&config->live_connections), - config->dead_conn_timeout); - return atomic_read(&config->live_connections); + return wait_event_timeout(config->conn_wait, + atomic_read(&config->live_connections) > 0, + config->dead_conn_timeout) > 0; } static int nbd_handle_cmd(struct nbd_cmd *cmd, int index) @@ -950,10 +975,6 @@ static void nbd_bdev_reset(struct block_device *bdev) if (bdev->bd_openers > 1) return; bd_set_size(bdev, 0); - if (max_part > 0) { - blkdev_reread_part(bdev); - bdev->bd_invalidated = 1; - } } static void nbd_parse_flags(struct nbd_device *nbd) @@ -1040,6 +1061,8 @@ static void nbd_config_put(struct nbd_device *nbd) nbd->config = NULL; nbd->tag_set.timeout = 0; + nbd->disk->queue->limits.discard_granularity = 0; + blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX); blk_queue_flag_clear(QUEUE_FLAG_DISCARD, nbd->disk->queue); mutex_unlock(&nbd->config_lock); @@ -1109,7 +1132,6 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b if (ret) return ret; - bd_set_size(bdev, config->bytesize); if (max_part) bdev->bd_invalidated = 1; mutex_unlock(&nbd->config_lock); @@ -1118,7 +1140,7 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b if (ret) sock_shutdown(nbd); mutex_lock(&nbd->config_lock); - bd_set_size(bdev, 0); + nbd_bdev_reset(bdev); /* user requested, ignore socket errors */ if (test_bit(NBD_DISCONNECT_REQUESTED, &config->runtime_flags)) ret = 0; @@ -1269,6 +1291,9 @@ static int nbd_open(struct block_device *bdev, fmode_t mode) refcount_set(&nbd->config_refs, 1); refcount_inc(&nbd->refs); mutex_unlock(&nbd->config_lock); + bdev->bd_invalidated = 1; + } else if (nbd_disconnected(nbd->config)) { + bdev->bd_invalidated = 1; } out: mutex_unlock(&nbd_index_mutex); @@ -1490,8 +1515,8 @@ static int nbd_dev_add(int index) */ blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue); blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue); - disk->queue->limits.discard_granularity = 512; - blk_queue_max_discard_sectors(disk->queue, UINT_MAX); + disk->queue->limits.discard_granularity = 0; + blk_queue_max_discard_sectors(disk->queue, 0); blk_queue_max_segment_size(disk->queue, UINT_MAX); blk_queue_max_segments(disk->queue, USHRT_MAX); blk_queue_max_hw_sectors(disk->queue, 65536); @@ -1755,6 +1780,7 @@ static int nbd_genl_disconnect(struct sk_buff *skb, struct genl_info *info) } mutex_lock(&nbd->config_lock); nbd_disconnect(nbd); + nbd_clear_sock(nbd); mutex_unlock(&nbd->config_lock); if (test_and_clear_bit(NBD_HAS_CONFIG_REF, &nbd->config->runtime_flags)) @@ -2093,7 +2119,8 @@ static int __init nbd_init(void) if (nbds_max > 1UL << (MINORBITS - part_shift)) return -EINVAL; recv_workqueue = alloc_workqueue("knbd-recv", - WQ_MEM_RECLAIM | WQ_HIGHPRI, 0); + WQ_MEM_RECLAIM | WQ_HIGHPRI | + WQ_UNBOUND, 0); if (!recv_workqueue) return -ENOMEM; diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index a76553293a31..2bdadd7f1454 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -157,23 +157,23 @@ enum { }; static int g_no_sched; -module_param_named(no_sched, g_no_sched, int, S_IRUGO); +module_param_named(no_sched, g_no_sched, int, 0444); MODULE_PARM_DESC(no_sched, "No io scheduler"); static int g_submit_queues = 1; -module_param_named(submit_queues, g_submit_queues, int, S_IRUGO); +module_param_named(submit_queues, g_submit_queues, int, 0444); MODULE_PARM_DESC(submit_queues, "Number of submission queues"); static int g_home_node = NUMA_NO_NODE; -module_param_named(home_node, g_home_node, int, S_IRUGO); +module_param_named(home_node, g_home_node, int, 0444); MODULE_PARM_DESC(home_node, "Home node for the device"); #ifdef CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION static char g_timeout_str[80]; -module_param_string(timeout, g_timeout_str, sizeof(g_timeout_str), S_IRUGO); +module_param_string(timeout, g_timeout_str, sizeof(g_timeout_str), 0444); static char g_requeue_str[80]; -module_param_string(requeue, g_requeue_str, sizeof(g_requeue_str), S_IRUGO); +module_param_string(requeue, g_requeue_str, sizeof(g_requeue_str), 0444); #endif static int g_queue_mode = NULL_Q_MQ; @@ -203,27 +203,27 @@ static const struct kernel_param_ops null_queue_mode_param_ops = { .get = param_get_int, }; -device_param_cb(queue_mode, &null_queue_mode_param_ops, &g_queue_mode, S_IRUGO); +device_param_cb(queue_mode, &null_queue_mode_param_ops, &g_queue_mode, 0444); MODULE_PARM_DESC(queue_mode, "Block interface to use (0=bio,1=rq,2=multiqueue)"); static int g_gb = 250; -module_param_named(gb, g_gb, int, S_IRUGO); +module_param_named(gb, g_gb, int, 0444); MODULE_PARM_DESC(gb, "Size in GB"); static int g_bs = 512; -module_param_named(bs, g_bs, int, S_IRUGO); +module_param_named(bs, g_bs, int, 0444); MODULE_PARM_DESC(bs, "Block size (in bytes)"); static int nr_devices = 1; -module_param(nr_devices, int, S_IRUGO); +module_param(nr_devices, int, 0444); MODULE_PARM_DESC(nr_devices, "Number of devices to register"); static bool g_blocking; -module_param_named(blocking, g_blocking, bool, S_IRUGO); +module_param_named(blocking, g_blocking, bool, 0444); MODULE_PARM_DESC(blocking, "Register as a blocking blk-mq driver device"); static bool shared_tags; -module_param(shared_tags, bool, S_IRUGO); +module_param(shared_tags, bool, 0444); MODULE_PARM_DESC(shared_tags, "Share tag set between devices for blk-mq"); static int g_irqmode = NULL_IRQ_SOFTIRQ; @@ -239,19 +239,19 @@ static const struct kernel_param_ops null_irqmode_param_ops = { .get = param_get_int, }; -device_param_cb(irqmode, &null_irqmode_param_ops, &g_irqmode, S_IRUGO); +device_param_cb(irqmode, &null_irqmode_param_ops, &g_irqmode, 0444); MODULE_PARM_DESC(irqmode, "IRQ completion handler. 0-none, 1-softirq, 2-timer"); static unsigned long g_completion_nsec = 10000; -module_param_named(completion_nsec, g_completion_nsec, ulong, S_IRUGO); +module_param_named(completion_nsec, g_completion_nsec, ulong, 0444); MODULE_PARM_DESC(completion_nsec, "Time in ns to complete a request in hardware. Default: 10,000ns"); static int g_hw_queue_depth = 64; -module_param_named(hw_queue_depth, g_hw_queue_depth, int, S_IRUGO); +module_param_named(hw_queue_depth, g_hw_queue_depth, int, 0444); MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 64"); static bool g_use_per_node_hctx; -module_param_named(use_per_node_hctx, g_use_per_node_hctx, bool, S_IRUGO); +module_param_named(use_per_node_hctx, g_use_per_node_hctx, bool, 0444); MODULE_PARM_DESC(use_per_node_hctx, "Use per-node allocation for hardware context queues. Default: false"); static struct nullb_device *null_alloc_dev(void); @@ -1365,7 +1365,8 @@ static blk_qc_t null_queue_bio(struct request_queue *q, struct bio *bio) static enum blk_eh_timer_return null_rq_timed_out_fn(struct request *rq) { pr_info("null: rq %p timed out\n", rq); - return BLK_EH_HANDLED; + blk_mq_complete_request(rq); + return BLK_EH_DONE; } static int null_rq_prep_fn(struct request_queue *q, struct request *req) @@ -1427,7 +1428,8 @@ static void null_request_fn(struct request_queue *q) static enum blk_eh_timer_return null_timeout_rq(struct request *rq, bool res) { pr_info("null: rq %p timed out\n", rq); - return BLK_EH_HANDLED; + blk_mq_complete_request(rq); + return BLK_EH_DONE; } static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx, diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 27a44b97393a..8961b190e256 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -740,7 +740,7 @@ static int pd_special_command(struct pd_unit *disk, { struct request *rq; - rq = blk_get_request(disk->gd->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(disk->gd->queue, REQ_OP_DRV_IN, 0); if (IS_ERR(rq)) return PTR_ERR(rq); diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index c61d20c9f3f8..b3f83cd96f33 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -97,8 +97,8 @@ static int pktdev_major; static int write_congestion_on = PKT_WRITE_CONGESTION_ON; static int write_congestion_off = PKT_WRITE_CONGESTION_OFF; static struct mutex ctl_mutex; /* Serialize open/close/setup/teardown */ -static mempool_t *psd_pool; -static struct bio_set *pkt_bio_set; +static mempool_t psd_pool; +static struct bio_set pkt_bio_set; static struct class *class_pktcdvd = NULL; /* /sys/class/pktcdvd */ static struct dentry *pkt_debugfs_root = NULL; /* /sys/kernel/debug/pktcdvd */ @@ -478,8 +478,8 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd) if (!pd->dfs_d_root) return; - pd->dfs_f_info = debugfs_create_file("info", S_IRUGO, - pd->dfs_d_root, pd, &debug_fops); + pd->dfs_f_info = debugfs_create_file("info", 0444, + pd->dfs_d_root, pd, &debug_fops); } static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd) @@ -631,7 +631,7 @@ static inline struct pkt_rb_node *pkt_rbtree_next(struct pkt_rb_node *node) static void pkt_rbtree_erase(struct pktcdvd_device *pd, struct pkt_rb_node *node) { rb_erase(&node->rb_node, &pd->bio_queue); - mempool_free(node, pd->rb_pool); + mempool_free(node, &pd->rb_pool); pd->bio_queue_size--; BUG_ON(pd->bio_queue_size < 0); } @@ -704,13 +704,13 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command * int ret = 0; rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ? - REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, __GFP_RECLAIM); + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0); if (IS_ERR(rq)) return PTR_ERR(rq); if (cgc->buflen) { ret = blk_rq_map_kern(q, rq, cgc->buffer, cgc->buflen, - __GFP_RECLAIM); + GFP_NOIO); if (ret) goto out; } @@ -1285,7 +1285,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt) * Fill-in bvec with data from orig_bios. */ spin_lock(&pkt->lock); - bio_copy_data(pkt->w_bio, pkt->orig_bios.head); + bio_list_copy_data(pkt->w_bio, pkt->orig_bios.head); pkt_set_state(pkt, PACKET_WRITE_WAIT_STATE); spin_unlock(&pkt->lock); @@ -2303,14 +2303,14 @@ static void pkt_end_io_read_cloned(struct bio *bio) psd->bio->bi_status = bio->bi_status; bio_put(bio); bio_endio(psd->bio); - mempool_free(psd, psd_pool); + mempool_free(psd, &psd_pool); pkt_bio_finished(pd); } static void pkt_make_request_read(struct pktcdvd_device *pd, struct bio *bio) { - struct bio *cloned_bio = bio_clone_fast(bio, GFP_NOIO, pkt_bio_set); - struct packet_stacked_data *psd = mempool_alloc(psd_pool, GFP_NOIO); + struct bio *cloned_bio = bio_clone_fast(bio, GFP_NOIO, &pkt_bio_set); + struct packet_stacked_data *psd = mempool_alloc(&psd_pool, GFP_NOIO); psd->pd = pd; psd->bio = bio; @@ -2381,7 +2381,7 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio) /* * No matching packet found. Store the bio in the work queue. */ - node = mempool_alloc(pd->rb_pool, GFP_NOIO); + node = mempool_alloc(&pd->rb_pool, GFP_NOIO); node->bio = bio; spin_lock(&pd->lock); BUG_ON(pd->bio_queue_size < 0); @@ -2451,7 +2451,7 @@ static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio) split = bio_split(bio, last_zone - bio->bi_iter.bi_sector, - GFP_NOIO, pkt_bio_set); + GFP_NOIO, &pkt_bio_set); bio_chain(split, bio); } else { split = bio; @@ -2538,18 +2538,6 @@ static int pkt_seq_show(struct seq_file *m, void *p) return 0; } -static int pkt_seq_open(struct inode *inode, struct file *file) -{ - return single_open(file, pkt_seq_show, PDE_DATA(inode)); -} - -static const struct file_operations pkt_proc_fops = { - .open = pkt_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release -}; - static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev) { int i; @@ -2604,7 +2592,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev) goto out_mem; } - proc_create_data(pd->name, 0, pkt_proc, &pkt_proc_fops, pd); + proc_create_single_data(pd->name, 0, pkt_proc, pkt_seq_show, pd); pkt_dbg(1, pd, "writer mapped to %s\n", bdevname(bdev, b)); return 0; @@ -2707,9 +2695,9 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev) if (!pd) goto out_mutex; - pd->rb_pool = mempool_create_kmalloc_pool(PKT_RB_POOL_SIZE, - sizeof(struct pkt_rb_node)); - if (!pd->rb_pool) + ret = mempool_init_kmalloc_pool(&pd->rb_pool, PKT_RB_POOL_SIZE, + sizeof(struct pkt_rb_node)); + if (ret) goto out_mem; INIT_LIST_HEAD(&pd->cdrw.pkt_free_list); @@ -2766,7 +2754,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev) out_mem2: put_disk(disk); out_mem: - mempool_destroy(pd->rb_pool); + mempool_exit(&pd->rb_pool); kfree(pd); out_mutex: mutex_unlock(&ctl_mutex); @@ -2817,7 +2805,7 @@ static int pkt_remove_dev(dev_t pkt_dev) blk_cleanup_queue(pd->disk->queue); put_disk(pd->disk); - mempool_destroy(pd->rb_pool); + mempool_exit(&pd->rb_pool); kfree(pd); /* This is safe: open() is still holding a reference. */ @@ -2914,14 +2902,14 @@ static int __init pkt_init(void) mutex_init(&ctl_mutex); - psd_pool = mempool_create_kmalloc_pool(PSD_POOL_SIZE, - sizeof(struct packet_stacked_data)); - if (!psd_pool) - return -ENOMEM; - pkt_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!pkt_bio_set) { - mempool_destroy(psd_pool); - return -ENOMEM; + ret = mempool_init_kmalloc_pool(&psd_pool, PSD_POOL_SIZE, + sizeof(struct packet_stacked_data)); + if (ret) + return ret; + ret = bioset_init(&pkt_bio_set, BIO_POOL_SIZE, 0, 0); + if (ret) { + mempool_exit(&psd_pool); + return ret; } ret = register_blkdev(pktdev_major, DRIVER_NAME); @@ -2954,8 +2942,8 @@ out_misc: out: unregister_blkdev(pktdev_major, DRIVER_NAME); out2: - mempool_destroy(psd_pool); - bioset_free(pkt_bio_set); + mempool_exit(&psd_pool); + bioset_exit(&pkt_bio_set); return ret; } @@ -2968,8 +2956,8 @@ static void __exit pkt_exit(void) pkt_sysfs_cleanup(); unregister_blkdev(pktdev_major, DRIVER_NAME); - mempool_destroy(psd_pool); - bioset_free(pkt_bio_set); + mempool_exit(&psd_pool); + bioset_exit(&pkt_bio_set); } MODULE_DESCRIPTION("Packet writing layer for CD/DVD drives"); diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 075662f2cf46..afe1508d82c6 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -465,8 +465,6 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev) priv->queue = queue; queue->queuedata = dev; - blk_queue_bounce_limit(queue, BLK_BOUNCE_HIGH); - blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9); blk_queue_segment_boundary(queue, -1UL); blk_queue_dma_alignment(queue, dev->blk_size-1); diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index 6a55959cbf78..8fa4533a1249 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -521,26 +521,13 @@ static int ps3vram_proc_show(struct seq_file *m, void *v) return 0; } -static int ps3vram_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ps3vram_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ps3vram_proc_fops = { - .owner = THIS_MODULE, - .open = ps3vram_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void ps3vram_proc_init(struct ps3_system_bus_device *dev) { struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev); struct proc_dir_entry *pde; - pde = proc_create_data(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops, - priv); + pde = proc_create_single_data(DEVICE_NAME, 0444, NULL, + ps3vram_proc_show, priv); if (!pde) dev_warn(&dev->core, "failed to create /proc entry\n"); } diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 33b36fea1d73..af354047ac4b 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -424,7 +424,7 @@ static struct workqueue_struct *rbd_wq; * single-major requires >= 0.75 version of userspace rbd utility. */ static bool single_major = true; -module_param(single_major, bool, S_IRUGO); +module_param(single_major, bool, 0444); MODULE_PARM_DESC(single_major, "Use a single major number for all rbd devices (default: true)"); static ssize_t rbd_add(struct bus_type *bus, const char *buf, @@ -468,11 +468,11 @@ static ssize_t rbd_supported_features_show(struct bus_type *bus, char *buf) return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED); } -static BUS_ATTR(add, S_IWUSR, NULL, rbd_add); -static BUS_ATTR(remove, S_IWUSR, NULL, rbd_remove); -static BUS_ATTR(add_single_major, S_IWUSR, NULL, rbd_add_single_major); -static BUS_ATTR(remove_single_major, S_IWUSR, NULL, rbd_remove_single_major); -static BUS_ATTR(supported_features, S_IRUGO, rbd_supported_features_show, NULL); +static BUS_ATTR(add, 0200, NULL, rbd_add); +static BUS_ATTR(remove, 0200, NULL, rbd_remove); +static BUS_ATTR(add_single_major, 0200, NULL, rbd_add_single_major); +static BUS_ATTR(remove_single_major, 0200, NULL, rbd_remove_single_major); +static BUS_ATTR(supported_features, 0444, rbd_supported_features_show, NULL); static struct attribute *rbd_bus_attrs[] = { &bus_attr_add.attr, @@ -4204,22 +4204,22 @@ static ssize_t rbd_image_refresh(struct device *dev, return size; } -static DEVICE_ATTR(size, S_IRUGO, rbd_size_show, NULL); -static DEVICE_ATTR(features, S_IRUGO, rbd_features_show, NULL); -static DEVICE_ATTR(major, S_IRUGO, rbd_major_show, NULL); -static DEVICE_ATTR(minor, S_IRUGO, rbd_minor_show, NULL); -static DEVICE_ATTR(client_addr, S_IRUGO, rbd_client_addr_show, NULL); -static DEVICE_ATTR(client_id, S_IRUGO, rbd_client_id_show, NULL); -static DEVICE_ATTR(cluster_fsid, S_IRUGO, rbd_cluster_fsid_show, NULL); -static DEVICE_ATTR(config_info, S_IRUSR, rbd_config_info_show, NULL); -static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL); -static DEVICE_ATTR(pool_id, S_IRUGO, rbd_pool_id_show, NULL); -static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL); -static DEVICE_ATTR(image_id, S_IRUGO, rbd_image_id_show, NULL); -static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh); -static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL); -static DEVICE_ATTR(snap_id, S_IRUGO, rbd_snap_id_show, NULL); -static DEVICE_ATTR(parent, S_IRUGO, rbd_parent_show, NULL); +static DEVICE_ATTR(size, 0444, rbd_size_show, NULL); +static DEVICE_ATTR(features, 0444, rbd_features_show, NULL); +static DEVICE_ATTR(major, 0444, rbd_major_show, NULL); +static DEVICE_ATTR(minor, 0444, rbd_minor_show, NULL); +static DEVICE_ATTR(client_addr, 0444, rbd_client_addr_show, NULL); +static DEVICE_ATTR(client_id, 0444, rbd_client_id_show, NULL); +static DEVICE_ATTR(cluster_fsid, 0444, rbd_cluster_fsid_show, NULL); +static DEVICE_ATTR(config_info, 0400, rbd_config_info_show, NULL); +static DEVICE_ATTR(pool, 0444, rbd_pool_show, NULL); +static DEVICE_ATTR(pool_id, 0444, rbd_pool_id_show, NULL); +static DEVICE_ATTR(name, 0444, rbd_name_show, NULL); +static DEVICE_ATTR(image_id, 0444, rbd_image_id_show, NULL); +static DEVICE_ATTR(refresh, 0200, NULL, rbd_image_refresh); +static DEVICE_ATTR(current_snap, 0444, rbd_snap_show, NULL); +static DEVICE_ATTR(snap_id, 0444, rbd_snap_id_show, NULL); +static DEVICE_ATTR(parent, 0444, rbd_parent_show, NULL); static struct attribute *rbd_attrs[] = { &dev_attr_size.attr, diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c index 34997df132e2..09537bee387f 100644 --- a/drivers/block/rsxx/core.c +++ b/drivers/block/rsxx/core.c @@ -247,19 +247,19 @@ static void rsxx_debugfs_dev_new(struct rsxx_cardinfo *card) if (IS_ERR_OR_NULL(card->debugfs_dir)) goto failed_debugfs_dir; - debugfs_stats = debugfs_create_file("stats", S_IRUGO, + debugfs_stats = debugfs_create_file("stats", 0444, card->debugfs_dir, card, &debugfs_stats_fops); if (IS_ERR_OR_NULL(debugfs_stats)) goto failed_debugfs_stats; - debugfs_pci_regs = debugfs_create_file("pci_regs", S_IRUGO, + debugfs_pci_regs = debugfs_create_file("pci_regs", 0444, card->debugfs_dir, card, &debugfs_pci_regs_fops); if (IS_ERR_OR_NULL(debugfs_pci_regs)) goto failed_debugfs_pci_regs; - debugfs_cram = debugfs_create_file("cram", S_IRUGO | S_IWUSR, + debugfs_cram = debugfs_create_file("cram", 0644, card->debugfs_dir, card, &debugfs_cram_fops); if (IS_ERR_OR_NULL(debugfs_cram)) diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c index 08586dc14e85..4d90e5eba2f5 100644 --- a/drivers/block/sx8.c +++ b/drivers/block/sx8.c @@ -567,7 +567,7 @@ static struct carm_request *carm_get_special(struct carm_host *host) if (!crq) return NULL; - rq = blk_get_request(host->oob_q, REQ_OP_DRV_OUT, GFP_KERNEL); + rq = blk_get_request(host->oob_q, REQ_OP_DRV_OUT, 0); if (IS_ERR(rq)) { spin_lock_irqsave(&host->lock, flags); carm_put_request(host, crq); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 4a07593c2efd..23752dc99b00 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -298,7 +298,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str) struct request *req; int err; - req = blk_get_request(q, REQ_OP_DRV_IN, GFP_KERNEL); + req = blk_get_request(q, REQ_OP_DRV_IN, 0); if (IS_ERR(req)) return PTR_ERR(req); @@ -371,7 +371,7 @@ static ssize_t virtblk_serial_show(struct device *dev, return err; } -static DEVICE_ATTR(serial, S_IRUGO, virtblk_serial_show, NULL); +static DEVICE_ATTR(serial, 0444, virtblk_serial_show, NULL); /* The queue's logical block size must be set before calling this */ static void virtblk_update_capacity(struct virtio_blk *vblk, bool resize) @@ -576,10 +576,10 @@ virtblk_cache_type_show(struct device *dev, struct device_attribute *attr, } static const struct device_attribute dev_attr_cache_type_ro = - __ATTR(cache_type, S_IRUGO, + __ATTR(cache_type, 0444, virtblk_cache_type_show, NULL); static const struct device_attribute dev_attr_cache_type_rw = - __ATTR(cache_type, S_IRUGO|S_IWUSR, + __ATTR(cache_type, 0644, virtblk_cache_type_show, virtblk_cache_type_store); static int virtblk_init_request(struct blk_mq_tag_set *set, struct request *rq, diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 987d665e82de..b55b245e8052 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -98,7 +98,7 @@ MODULE_PARM_DESC(max_queues, * backend, 4KB page granularity is used. */ unsigned int xen_blkif_max_ring_order = XENBUS_MAX_RING_GRANT_ORDER; -module_param_named(max_ring_page_order, xen_blkif_max_ring_order, int, S_IRUGO); +module_param_named(max_ring_page_order, xen_blkif_max_ring_order, int, 0444); MODULE_PARM_DESC(max_ring_page_order, "Maximum order of pages to be used for the shared ring"); /* * The LRU mechanism to clean the lists of persistent grants needs to diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 21c1be1eb226..66412eededda 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -367,7 +367,7 @@ int __init xen_blkif_interface_init(void) out: \ return sprintf(buf, format, result); \ } \ - static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) + static DEVICE_ATTR(name, 0444, show_##name, NULL) VBD_SHOW_ALLRING(oo_req, "%llu\n"); VBD_SHOW_ALLRING(rd_req, "%llu\n"); @@ -403,7 +403,7 @@ static const struct attribute_group xen_vbdstat_group = { \ return sprintf(buf, format, ##args); \ } \ - static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) + static DEVICE_ATTR(name, 0444, show_##name, NULL) VBD_SHOW(physical_device, "%x:%x\n", be->major, be->minor); VBD_SHOW(mode, "%s\n", be->mode); diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 2a8e7813bd1a..ae00a82f350b 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -129,13 +129,12 @@ static const struct block_device_operations xlvbd_block_fops; */ static unsigned int xen_blkif_max_segments = 32; -module_param_named(max_indirect_segments, xen_blkif_max_segments, uint, - S_IRUGO); +module_param_named(max_indirect_segments, xen_blkif_max_segments, uint, 0444); MODULE_PARM_DESC(max_indirect_segments, "Maximum amount of segments in indirect requests (default is 32)"); static unsigned int xen_blkif_max_queues = 4; -module_param_named(max_queues, xen_blkif_max_queues, uint, S_IRUGO); +module_param_named(max_queues, xen_blkif_max_queues, uint, 0444); MODULE_PARM_DESC(max_queues, "Maximum number of hardware queues/rings used per virtual disk"); /* @@ -143,7 +142,7 @@ MODULE_PARM_DESC(max_queues, "Maximum number of hardware queues/rings used per v * backend, 4KB page granularity is used. */ static unsigned int xen_blkif_max_ring_order; -module_param_named(max_ring_page_order, xen_blkif_max_ring_order, int, S_IRUGO); +module_param_named(max_ring_page_order, xen_blkif_max_ring_order, int, 0444); MODULE_PARM_DESC(max_ring_page_order, "Maximum order of pages to be used for the shared ring"); #define BLK_RING_SIZE(info) \ diff --git a/drivers/bus/fsl-mc/fsl-mc-msi.c b/drivers/bus/fsl-mc/fsl-mc-msi.c index ec35e255b496..8b9c66d7c4ff 100644 --- a/drivers/bus/fsl-mc/fsl-mc-msi.c +++ b/drivers/bus/fsl-mc/fsl-mc-msi.c @@ -163,6 +163,8 @@ struct irq_domain *fsl_mc_msi_create_irq_domain(struct fwnode_handle *fwnode, { struct irq_domain *domain; + if (WARN_ON((info->flags & MSI_FLAG_LEVEL_CAPABLE))) + info->flags &= ~MSI_FLAG_LEVEL_CAPABLE; if (info->flags & MSI_FLAG_USE_DEF_DOM_OPS) fsl_mc_msi_update_dom_ops(info); if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index bfc566d3f31a..9adc8c3eb0fa 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -2192,7 +2192,7 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf, len = nr * CD_FRAMESIZE_RAW; - rq = blk_get_request(q, REQ_OP_SCSI_IN, GFP_KERNEL); + rq = blk_get_request(q, REQ_OP_SCSI_IN, 0); if (IS_ERR(rq)) { ret = PTR_ERR(rq); break; diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index a5e2f9e557ea..53436c03dbce 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -461,19 +461,6 @@ static int proc_apm_show(struct seq_file *m, void *v) return 0; } - -static int proc_apm_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_apm_show, NULL); -} - -static const struct file_operations apm_proc_fops = { - .owner = THIS_MODULE, - .open = proc_apm_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif static int kapmd(void *arg) @@ -657,7 +644,7 @@ static int __init apm_init(void) wake_up_process(kapmd_tsk); #ifdef CONFIG_PROC_FS - proc_create("apm", 0, NULL, &apm_proc_fops); + proc_create_single("apm", 0, NULL, proc_apm_show); #endif ret = misc_register(&apm_device); diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c index eb53cbadb68f..a5ecf6dae02e 100644 --- a/drivers/char/ds1620.c +++ b/drivers/char/ds1620.c @@ -345,18 +345,6 @@ static int ds1620_proc_therm_show(struct seq_file *m, void *v) fan_state[netwinder_get_fan()]); return 0; } - -static int ds1620_proc_therm_open(struct inode *inode, struct file *file) -{ - return single_open(file, ds1620_proc_therm_show, NULL); -} - -static const struct file_operations ds1620_proc_therm_fops = { - .open = ds1620_proc_therm_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif static const struct file_operations ds1620_fops = { @@ -404,7 +392,7 @@ static int __init ds1620_init(void) return ret; #ifdef THERM_USE_PROC - if (!proc_create("therm", 0, NULL, &ds1620_proc_therm_fops)) + if (!proc_create_single("therm", 0, NULL, ds1620_proc_therm_show)) printk(KERN_ERR "therm: unable to register /proc/therm\n"); #endif diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c index dc62568b7dde..d9aab643997e 100644 --- a/drivers/char/efirtc.c +++ b/drivers/char/efirtc.c @@ -358,19 +358,6 @@ static int efi_rtc_proc_show(struct seq_file *m, void *v) return 0; } - -static int efi_rtc_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, efi_rtc_proc_show, NULL); -} - -static const struct file_operations efi_rtc_proc_fops = { - .open = efi_rtc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int __init efi_rtc_init(void) { @@ -386,7 +373,7 @@ efi_rtc_init(void) return ret; } - dir = proc_create("driver/efirtc", 0, NULL, &efi_rtc_proc_fops); + dir = proc_create_single("driver/efirtc", 0, NULL, efi_rtc_proc_show); if (dir == NULL) { printk(KERN_ERR "efirtc: can't create /proc/driver/efirtc.\n"); misc_deregister(&efi_rtc_dev); diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 1bb9e7cc82e3..53cfe574d8d4 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -95,19 +95,6 @@ static const struct seq_operations misc_seq_ops = { .stop = misc_seq_stop, .show = misc_seq_show, }; - -static int misc_seq_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &misc_seq_ops); -} - -static const struct file_operations misc_proc_fops = { - .owner = THIS_MODULE, - .open = misc_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; #endif static int misc_open(struct inode *inode, struct file *file) @@ -282,7 +269,7 @@ static int __init misc_init(void) int err; struct proc_dir_entry *ret; - ret = proc_create("misc", 0, NULL, &misc_proc_fops); + ret = proc_create_seq("misc", 0, NULL, &misc_seq_ops); misc_class = class_create(THIS_MODULE, "misc"); err = PTR_ERR(misc_class); if (IS_ERR(misc_class)) diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c index 678fa97e41fb..25264d65e716 100644 --- a/drivers/char/nvram.c +++ b/drivers/char/nvram.c @@ -389,22 +389,9 @@ static int nvram_proc_read(struct seq_file *seq, void *offset) return 0; } -static int nvram_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, nvram_proc_read, NULL); -} - -static const struct file_operations nvram_proc_fops = { - .owner = THIS_MODULE, - .open = nvram_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int nvram_add_proc_fs(void) { - if (!proc_create("driver/nvram", 0, NULL, &nvram_proc_fops)) + if (!proc_create_single("driver/nvram", 0, NULL, nvram_proc_read)) return -ENOMEM; return 0; } diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index aa502e9fb7fa..66b04194aa9f 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2616,19 +2616,6 @@ static int mgslpc_proc_show(struct seq_file *m, void *v) return 0; } -static int mgslpc_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mgslpc_proc_show, NULL); -} - -static const struct file_operations mgslpc_proc_fops = { - .owner = THIS_MODULE, - .open = mgslpc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int rx_alloc_buffers(MGSLPC_INFO *info) { /* each buffer has header and data */ @@ -2815,7 +2802,7 @@ static const struct tty_operations mgslpc_ops = { .tiocmget = tiocmget, .tiocmset = tiocmset, .get_icount = mgslpc_get_icount, - .proc_fops = &mgslpc_proc_fops, + .proc_show = mgslpc_proc_show, }; static int __init synclink_cs_init(void) diff --git a/drivers/char/random.c b/drivers/char/random.c index cd888d4ee605..a8fb0020ba5c 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -402,8 +402,7 @@ static struct poolinfo { /* * Static global variables */ -static DECLARE_WAIT_QUEUE_HEAD(random_read_wait); -static DECLARE_WAIT_QUEUE_HEAD(random_write_wait); +static DECLARE_WAIT_QUEUE_HEAD(random_wait); static struct fasync_struct *fasync; static DEFINE_SPINLOCK(random_ready_list_lock); @@ -722,8 +721,8 @@ retry: /* should we wake readers? */ if (entropy_bits >= random_read_wakeup_bits && - wq_has_sleeper(&random_read_wait)) { - wake_up_interruptible(&random_read_wait); + wq_has_sleeper(&random_wait)) { + wake_up_interruptible_poll(&random_wait, POLLIN); kill_fasync(&fasync, SIGIO, POLL_IN); } /* If the input pool is getting full, send some @@ -1397,7 +1396,7 @@ retry: trace_debit_entropy(r->name, 8 * ibytes); if (ibytes && (r->entropy_count >> ENTROPY_SHIFT) < random_write_wakeup_bits) { - wake_up_interruptible(&random_write_wait); + wake_up_interruptible_poll(&random_wait, POLLOUT); kill_fasync(&fasync, SIGIO, POLL_OUT); } @@ -1839,7 +1838,7 @@ _random_read(int nonblock, char __user *buf, size_t nbytes) if (nonblock) return -EAGAIN; - wait_event_interruptible(random_read_wait, + wait_event_interruptible(random_wait, ENTROPY_BITS(&input_pool) >= random_read_wakeup_bits); if (signal_pending(current)) @@ -1876,14 +1875,17 @@ urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) return ret; } +static struct wait_queue_head * +random_get_poll_head(struct file *file, __poll_t events) +{ + return &random_wait; +} + static __poll_t -random_poll(struct file *file, poll_table * wait) +random_poll_mask(struct file *file, __poll_t events) { - __poll_t mask; + __poll_t mask = 0; - poll_wait(file, &random_read_wait, wait); - poll_wait(file, &random_write_wait, wait); - mask = 0; if (ENTROPY_BITS(&input_pool) >= random_read_wakeup_bits) mask |= EPOLLIN | EPOLLRDNORM; if (ENTROPY_BITS(&input_pool) < random_write_wakeup_bits) @@ -1990,7 +1992,8 @@ static int random_fasync(int fd, struct file *filp, int on) const struct file_operations random_fops = { .read = random_read, .write = random_write, - .poll = random_poll, + .get_poll_head = random_get_poll_head, + .poll_mask = random_poll_mask, .unlocked_ioctl = random_ioctl, .fasync = random_fasync, .llseek = noop_llseek, @@ -2323,7 +2326,7 @@ void add_hwgenerator_randomness(const char *buffer, size_t count, * We'll be woken up again once below random_write_wakeup_thresh, * or when the calling thread is about to terminate. */ - wait_event_interruptible(random_write_wait, kthread_should_stop() || + wait_event_interruptible(random_wait, kthread_should_stop() || ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits); mix_pool_bytes(poolp, buffer, count); credit_entropy_bits(poolp, entropy); diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index 57dc546628b5..94fedeeec035 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -171,7 +171,7 @@ static void mask_rtc_irq_bit(unsigned char bit) #endif #ifdef CONFIG_PROC_FS -static int rtc_proc_open(struct inode *inode, struct file *file); +static int rtc_proc_show(struct seq_file *seq, void *v); #endif /* @@ -832,16 +832,6 @@ static struct miscdevice rtc_dev = { .fops = &rtc_fops, }; -#ifdef CONFIG_PROC_FS -static const struct file_operations rtc_proc_fops = { - .owner = THIS_MODULE, - .open = rtc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - static resource_size_t rtc_size; static struct resource * __init rtc_request_region(resource_size_t size) @@ -982,7 +972,7 @@ no_irq: } #ifdef CONFIG_PROC_FS - ent = proc_create("driver/rtc", 0, NULL, &rtc_proc_fops); + ent = proc_create_single("driver/rtc", 0, NULL, rtc_proc_show); if (!ent) printk(KERN_WARNING "rtc: Failed to register with procfs.\n"); #endif @@ -1201,11 +1191,6 @@ static int rtc_proc_show(struct seq_file *seq, void *v) #undef YN #undef NY } - -static int rtc_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, rtc_proc_show, NULL); -} #endif static void rtc_get_rtc_time(struct rtc_time *rtc_tm) diff --git a/drivers/char/toshiba.c b/drivers/char/toshiba.c index 5488516da8ea..802376fe851a 100644 --- a/drivers/char/toshiba.c +++ b/drivers/char/toshiba.c @@ -326,19 +326,6 @@ static int proc_toshiba_show(struct seq_file *m, void *v) key); return 0; } - -static int proc_toshiba_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_toshiba_show, NULL); -} - -static const struct file_operations proc_toshiba_fops = { - .owner = THIS_MODULE, - .open = proc_toshiba_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif @@ -524,7 +511,7 @@ static int __init toshiba_init(void) { struct proc_dir_entry *pde; - pde = proc_create("toshiba", 0, NULL, &proc_toshiba_fops); + pde = proc_create_single("toshiba", 0, NULL, proc_toshiba_show); if (!pde) { misc_deregister(&tosh_device); return -ENOMEM; diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 8e8a09755d10..dec0dd88ec15 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -450,8 +450,10 @@ config MTK_TIMER Support for Mediatek timer driver. config SPRD_TIMER - bool "Spreadtrum timer driver" if COMPILE_TEST + bool "Spreadtrum timer driver" if EXPERT depends on HAS_IOMEM + depends on (ARCH_SPRD || COMPILE_TEST) + default ARCH_SPRD select TIMER_OF help Enables support for the Spreadtrum timer driver. diff --git a/drivers/clocksource/arc_timer.c b/drivers/clocksource/arc_timer.c index 471b428d8034..20da9b1d7f7d 100644 --- a/drivers/clocksource/arc_timer.c +++ b/drivers/clocksource/arc_timer.c @@ -61,6 +61,20 @@ static u64 arc_read_gfrc(struct clocksource *cs) unsigned long flags; u32 l, h; + /* + * From a programming model pov, there seems to be just one instance of + * MCIP_CMD/MCIP_READBACK however micro-architecturally there's + * an instance PER ARC CORE (not per cluster), and there are dedicated + * hardware decode logic (per core) inside ARConnect to handle + * simultaneous read/write accesses from cores via those two registers. + * So several concurrent commands to ARConnect are OK if they are + * trying to access two different sub-components (like GFRC, + * inter-core interrupt, etc...). HW also supports simultaneously + * accessing GFRC by multiple cores. + * That's why it is safe to disable hard interrupts on the local CPU + * before access to GFRC instead of taking global MCIP spinlock + * defined in arch/arc/kernel/mcip.c + */ local_irq_save(flags); __mcip_cmd(CMD_GFRC_READ_LO, 0); diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c index 986b6796b631..54f8a331b53a 100644 --- a/drivers/clocksource/mips-gic-timer.c +++ b/drivers/clocksource/mips-gic-timer.c @@ -5,6 +5,9 @@ * * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. */ + +#define pr_fmt(fmt) "mips-gic-timer: " fmt + #include <linux/clk.h> #include <linux/clockchips.h> #include <linux/cpu.h> @@ -136,8 +139,7 @@ static int gic_clockevent_init(void) ret = setup_percpu_irq(gic_timer_irq, &gic_compare_irqaction); if (ret < 0) { - pr_err("GIC timer IRQ %d setup failed: %d\n", - gic_timer_irq, ret); + pr_err("IRQ %d setup failed (%d)\n", gic_timer_irq, ret); return ret; } @@ -176,7 +178,7 @@ static int __init __gic_clocksource_init(void) ret = clocksource_register_hz(&gic_clocksource, gic_frequency); if (ret < 0) - pr_warn("GIC: Unable to register clocksource\n"); + pr_warn("Unable to register clocksource\n"); return ret; } @@ -188,7 +190,7 @@ static int __init gic_clocksource_of_init(struct device_node *node) if (!mips_gic_present() || !node->parent || !of_device_is_compatible(node->parent, "mti,gic")) { - pr_warn("No DT definition for the mips gic driver\n"); + pr_warn("No DT definition\n"); return -ENXIO; } @@ -196,7 +198,7 @@ static int __init gic_clocksource_of_init(struct device_node *node) if (!IS_ERR(clk)) { ret = clk_prepare_enable(clk); if (ret < 0) { - pr_err("GIC failed to enable clock\n"); + pr_err("Failed to enable clock\n"); clk_put(clk); return ret; } @@ -204,12 +206,12 @@ static int __init gic_clocksource_of_init(struct device_node *node) gic_frequency = clk_get_rate(clk); } else if (of_property_read_u32(node, "clock-frequency", &gic_frequency)) { - pr_err("GIC frequency not specified.\n"); + pr_err("Frequency not specified\n"); return -EINVAL; } gic_timer_irq = irq_of_parse_and_map(node, 0); if (!gic_timer_irq) { - pr_err("GIC timer IRQ not specified.\n"); + pr_err("IRQ not specified\n"); return -EINVAL; } @@ -220,7 +222,7 @@ static int __init gic_clocksource_of_init(struct device_node *node) ret = gic_clockevent_init(); if (!ret && !IS_ERR(clk)) { if (clk_notifier_register(clk, &gic_clk_nb) < 0) - pr_warn("GIC: Unable to register clock notifier\n"); + pr_warn("Unable to register clock notifier\n"); } /* And finally start the counter */ diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c index a03434e9fe8f..f6ddae30933f 100644 --- a/drivers/clocksource/mxs_timer.c +++ b/drivers/clocksource/mxs_timer.c @@ -1,24 +1,10 @@ -/* - * Copyright (C) 2000-2001 Deep Blue Solutions - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * Copyright (C) 2006-2007 Pavel Pisa (ppisa@pikron.com) - * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) - * Copyright (C) 2010 Freescale Semiconductor, Inc. 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; 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., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301, USA. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// Copyright (C) 2000-2001 Deep Blue Solutions +// Copyright (C) 2002 Shane Nay (shane@minirl.com) +// Copyright (C) 2006-2007 Pavel Pisa (ppisa@pikron.com) +// Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) +// Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. #include <linux/err.h> #include <linux/interrupt.h> diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c index 6ec6d79b237c..165fbbb1c9a0 100644 --- a/drivers/clocksource/timer-imx-gpt.c +++ b/drivers/clocksource/timer-imx-gpt.c @@ -1,25 +1,9 @@ -/* - * linux/arch/arm/plat-mxc/time.c - * - * Copyright (C) 2000-2001 Deep Blue Solutions - * Copyright (C) 2002 Shane Nay (shane@minirl.com) - * Copyright (C) 2006-2007 Pavel Pisa (ppisa@pikron.com) - * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) - * - * 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., 51 Franklin Street, Fifth Floor, Boston, - * MA 02110-1301, USA. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// Copyright (C) 2000-2001 Deep Blue Solutions +// Copyright (C) 2002 Shane Nay (shane@minirl.com) +// Copyright (C) 2006-2007 Pavel Pisa (ppisa@pikron.com) +// Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) #include <linux/interrupt.h> #include <linux/irq.h> diff --git a/drivers/clocksource/timer-imx-tpm.c b/drivers/clocksource/timer-imx-tpm.c index 6c8318470b48..b7aa2b817078 100644 --- a/drivers/clocksource/timer-imx-tpm.c +++ b/drivers/clocksource/timer-imx-tpm.c @@ -1,12 +1,7 @@ -/* - * Copyright 2016 Freescale Semiconductor, Inc. - * Copyright 2017 NXP - * - * 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. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// Copyright 2016 Freescale Semiconductor, Inc. +// Copyright 2017 NXP #include <linux/clk.h> #include <linux/clockchips.h> diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index 8615594bd065..e718b8c69a56 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -260,19 +260,6 @@ static int cn_proc_show(struct seq_file *m, void *v) return 0; } -static int cn_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, cn_proc_show, NULL); -} - -static const struct file_operations cn_file_ops = { - .owner = THIS_MODULE, - .open = cn_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release -}; - static struct cn_dev cdev = { .input = cn_rx_skb, }; @@ -297,7 +284,7 @@ static int cn_init(void) cn_already_initialized = 1; - proc_create("connector", S_IRUGO, init_net.proc_net, &cn_file_ops); + proc_create_single("connector", S_IRUGO, init_net.proc_net, cn_proc_show); return 0; } diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c index 000c7019ca7d..d64edeb6771a 100644 --- a/drivers/dma/qcom/hidma_mgmt.c +++ b/drivers/dma/qcom/hidma_mgmt.c @@ -398,7 +398,7 @@ static int __init hidma_mgmt_of_populate_channels(struct device_node *np) } of_node_get(child); new_pdev->dev.of_node = child; - of_dma_configure(&new_pdev->dev, child); + of_dma_configure(&new_pdev->dev, child, true); /* * It is assumed that calling of_msi_configure is safe on * platforms with or without MSI support. diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 3098410abad8..781a4a337557 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -174,6 +174,11 @@ config UEFI_CPER_ARM depends on UEFI_CPER && ( ARM || ARM64 ) default y +config UEFI_CPER_X86 + bool + depends on UEFI_CPER && X86 + default y + config EFI_DEV_PATH_PARSER bool depends on ACPI diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile index cb805374f4bc..5f9f5039de50 100644 --- a/drivers/firmware/efi/Makefile +++ b/drivers/firmware/efi/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_ARM) += $(arm-obj-y) obj-$(CONFIG_ARM64) += $(arm-obj-y) obj-$(CONFIG_EFI_CAPSULE_LOADER) += capsule-loader.o obj-$(CONFIG_UEFI_CPER_ARM) += cper-arm.o +obj-$(CONFIG_UEFI_CPER_X86) += cper-x86.o diff --git a/drivers/firmware/efi/capsule-loader.c b/drivers/firmware/efi/capsule-loader.c index e456f4602df1..96688986da56 100644 --- a/drivers/firmware/efi/capsule-loader.c +++ b/drivers/firmware/efi/capsule-loader.c @@ -134,10 +134,16 @@ static ssize_t efi_capsule_submit_update(struct capsule_info *cap_info) /* Indicate capsule binary uploading is done */ cap_info->index = NO_FURTHER_WRITE_ACTION; - pr_info("Successfully upload capsule file with reboot type '%s'\n", - !cap_info->reset_type ? "RESET_COLD" : - cap_info->reset_type == 1 ? "RESET_WARM" : - "RESET_SHUTDOWN"); + + if (cap_info->header.flags & EFI_CAPSULE_PERSIST_ACROSS_RESET) { + pr_info("Successfully uploaded capsule file with reboot type '%s'\n", + !cap_info->reset_type ? "RESET_COLD" : + cap_info->reset_type == 1 ? "RESET_WARM" : + "RESET_SHUTDOWN"); + } else { + pr_info("Successfully processed capsule file\n"); + } + return 0; } diff --git a/drivers/firmware/efi/cper-arm.c b/drivers/firmware/efi/cper-arm.c index 698e5c8e0c8d..502811344e81 100644 --- a/drivers/firmware/efi/cper-arm.c +++ b/drivers/firmware/efi/cper-arm.c @@ -30,8 +30,6 @@ #include <acpi/ghes.h> #include <ras/ras_event.h> -#define INDENT_SP " " - static const char * const arm_reg_ctx_strs[] = { "AArch32 general purpose registers", "AArch32 EL1 context registers", @@ -283,7 +281,7 @@ void cper_print_proc_arm(const char *pfx, pfx, proc->psci_state); } - snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + snprintf(newpfx, sizeof(newpfx), "%s ", pfx); err_info = (struct cper_arm_err_info *)(proc + 1); for (i = 0; i < proc->err_info_num; i++) { @@ -310,7 +308,7 @@ void cper_print_proc_arm(const char *pfx, if (err_info->validation_bits & CPER_ARM_INFO_VALID_ERR_INFO) { printk("%serror_info: 0x%016llx\n", newpfx, err_info->error_info); - snprintf(infopfx, sizeof(infopfx), "%s%s", newpfx, INDENT_SP); + snprintf(infopfx, sizeof(infopfx), "%s ", newpfx); cper_print_arm_err_info(infopfx, err_info->type, err_info->error_info); } diff --git a/drivers/firmware/efi/cper-x86.c b/drivers/firmware/efi/cper-x86.c new file mode 100644 index 000000000000..2531de49f56c --- /dev/null +++ b/drivers/firmware/efi/cper-x86.c @@ -0,0 +1,356 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2018, Advanced Micro Devices, Inc. + +#include <linux/cper.h> + +/* + * We don't need a "CPER_IA" prefix since these are all locally defined. + * This will save us a lot of line space. + */ +#define VALID_LAPIC_ID BIT_ULL(0) +#define VALID_CPUID_INFO BIT_ULL(1) +#define VALID_PROC_ERR_INFO_NUM(bits) (((bits) & GENMASK_ULL(7, 2)) >> 2) +#define VALID_PROC_CXT_INFO_NUM(bits) (((bits) & GENMASK_ULL(13, 8)) >> 8) + +#define INFO_ERR_STRUCT_TYPE_CACHE \ + GUID_INIT(0xA55701F5, 0xE3EF, 0x43DE, 0xAC, 0x72, 0x24, 0x9B, \ + 0x57, 0x3F, 0xAD, 0x2C) +#define INFO_ERR_STRUCT_TYPE_TLB \ + GUID_INIT(0xFC06B535, 0x5E1F, 0x4562, 0x9F, 0x25, 0x0A, 0x3B, \ + 0x9A, 0xDB, 0x63, 0xC3) +#define INFO_ERR_STRUCT_TYPE_BUS \ + GUID_INIT(0x1CF3F8B3, 0xC5B1, 0x49a2, 0xAA, 0x59, 0x5E, 0xEF, \ + 0x92, 0xFF, 0xA6, 0x3C) +#define INFO_ERR_STRUCT_TYPE_MS \ + GUID_INIT(0x48AB7F57, 0xDC34, 0x4f6c, 0xA7, 0xD3, 0xB0, 0xB5, \ + 0xB0, 0xA7, 0x43, 0x14) + +#define INFO_VALID_CHECK_INFO BIT_ULL(0) +#define INFO_VALID_TARGET_ID BIT_ULL(1) +#define INFO_VALID_REQUESTOR_ID BIT_ULL(2) +#define INFO_VALID_RESPONDER_ID BIT_ULL(3) +#define INFO_VALID_IP BIT_ULL(4) + +#define CHECK_VALID_TRANS_TYPE BIT_ULL(0) +#define CHECK_VALID_OPERATION BIT_ULL(1) +#define CHECK_VALID_LEVEL BIT_ULL(2) +#define CHECK_VALID_PCC BIT_ULL(3) +#define CHECK_VALID_UNCORRECTED BIT_ULL(4) +#define CHECK_VALID_PRECISE_IP BIT_ULL(5) +#define CHECK_VALID_RESTARTABLE_IP BIT_ULL(6) +#define CHECK_VALID_OVERFLOW BIT_ULL(7) + +#define CHECK_VALID_BUS_PART_TYPE BIT_ULL(8) +#define CHECK_VALID_BUS_TIME_OUT BIT_ULL(9) +#define CHECK_VALID_BUS_ADDR_SPACE BIT_ULL(10) + +#define CHECK_VALID_BITS(check) (((check) & GENMASK_ULL(15, 0))) +#define CHECK_TRANS_TYPE(check) (((check) & GENMASK_ULL(17, 16)) >> 16) +#define CHECK_OPERATION(check) (((check) & GENMASK_ULL(21, 18)) >> 18) +#define CHECK_LEVEL(check) (((check) & GENMASK_ULL(24, 22)) >> 22) +#define CHECK_PCC BIT_ULL(25) +#define CHECK_UNCORRECTED BIT_ULL(26) +#define CHECK_PRECISE_IP BIT_ULL(27) +#define CHECK_RESTARTABLE_IP BIT_ULL(28) +#define CHECK_OVERFLOW BIT_ULL(29) + +#define CHECK_BUS_PART_TYPE(check) (((check) & GENMASK_ULL(31, 30)) >> 30) +#define CHECK_BUS_TIME_OUT BIT_ULL(32) +#define CHECK_BUS_ADDR_SPACE(check) (((check) & GENMASK_ULL(34, 33)) >> 33) + +#define CHECK_VALID_MS_ERR_TYPE BIT_ULL(0) +#define CHECK_VALID_MS_PCC BIT_ULL(1) +#define CHECK_VALID_MS_UNCORRECTED BIT_ULL(2) +#define CHECK_VALID_MS_PRECISE_IP BIT_ULL(3) +#define CHECK_VALID_MS_RESTARTABLE_IP BIT_ULL(4) +#define CHECK_VALID_MS_OVERFLOW BIT_ULL(5) + +#define CHECK_MS_ERR_TYPE(check) (((check) & GENMASK_ULL(18, 16)) >> 16) +#define CHECK_MS_PCC BIT_ULL(19) +#define CHECK_MS_UNCORRECTED BIT_ULL(20) +#define CHECK_MS_PRECISE_IP BIT_ULL(21) +#define CHECK_MS_RESTARTABLE_IP BIT_ULL(22) +#define CHECK_MS_OVERFLOW BIT_ULL(23) + +#define CTX_TYPE_MSR 1 +#define CTX_TYPE_MMREG 7 + +enum err_types { + ERR_TYPE_CACHE = 0, + ERR_TYPE_TLB, + ERR_TYPE_BUS, + ERR_TYPE_MS, + N_ERR_TYPES +}; + +static enum err_types cper_get_err_type(const guid_t *err_type) +{ + if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_CACHE)) + return ERR_TYPE_CACHE; + else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_TLB)) + return ERR_TYPE_TLB; + else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_BUS)) + return ERR_TYPE_BUS; + else if (guid_equal(err_type, &INFO_ERR_STRUCT_TYPE_MS)) + return ERR_TYPE_MS; + else + return N_ERR_TYPES; +} + +static const char * const ia_check_trans_type_strs[] = { + "Instruction", + "Data Access", + "Generic", +}; + +static const char * const ia_check_op_strs[] = { + "generic error", + "generic read", + "generic write", + "data read", + "data write", + "instruction fetch", + "prefetch", + "eviction", + "snoop", +}; + +static const char * const ia_check_bus_part_type_strs[] = { + "Local Processor originated request", + "Local Processor responded to request", + "Local Processor observed", + "Generic", +}; + +static const char * const ia_check_bus_addr_space_strs[] = { + "Memory Access", + "Reserved", + "I/O", + "Other Transaction", +}; + +static const char * const ia_check_ms_error_type_strs[] = { + "No Error", + "Unclassified", + "Microcode ROM Parity Error", + "External Error", + "FRC Error", + "Internal Unclassified", +}; + +static const char * const ia_reg_ctx_strs[] = { + "Unclassified Data", + "MSR Registers (Machine Check and other MSRs)", + "32-bit Mode Execution Context", + "64-bit Mode Execution Context", + "FXSAVE Context", + "32-bit Mode Debug Registers (DR0-DR7)", + "64-bit Mode Debug Registers (DR0-DR7)", + "Memory Mapped Registers", +}; + +static inline void print_bool(char *str, const char *pfx, u64 check, u64 bit) +{ + printk("%s%s: %s\n", pfx, str, (check & bit) ? "true" : "false"); +} + +static void print_err_info_ms(const char *pfx, u16 validation_bits, u64 check) +{ + if (validation_bits & CHECK_VALID_MS_ERR_TYPE) { + u8 err_type = CHECK_MS_ERR_TYPE(check); + + printk("%sError Type: %u, %s\n", pfx, err_type, + err_type < ARRAY_SIZE(ia_check_ms_error_type_strs) ? + ia_check_ms_error_type_strs[err_type] : "unknown"); + } + + if (validation_bits & CHECK_VALID_MS_PCC) + print_bool("Processor Context Corrupt", pfx, check, CHECK_MS_PCC); + + if (validation_bits & CHECK_VALID_MS_UNCORRECTED) + print_bool("Uncorrected", pfx, check, CHECK_MS_UNCORRECTED); + + if (validation_bits & CHECK_VALID_MS_PRECISE_IP) + print_bool("Precise IP", pfx, check, CHECK_MS_PRECISE_IP); + + if (validation_bits & CHECK_VALID_MS_RESTARTABLE_IP) + print_bool("Restartable IP", pfx, check, CHECK_MS_RESTARTABLE_IP); + + if (validation_bits & CHECK_VALID_MS_OVERFLOW) + print_bool("Overflow", pfx, check, CHECK_MS_OVERFLOW); +} + +static void print_err_info(const char *pfx, u8 err_type, u64 check) +{ + u16 validation_bits = CHECK_VALID_BITS(check); + + /* + * The MS Check structure varies a lot from the others, so use a + * separate function for decoding. + */ + if (err_type == ERR_TYPE_MS) + return print_err_info_ms(pfx, validation_bits, check); + + if (validation_bits & CHECK_VALID_TRANS_TYPE) { + u8 trans_type = CHECK_TRANS_TYPE(check); + + printk("%sTransaction Type: %u, %s\n", pfx, trans_type, + trans_type < ARRAY_SIZE(ia_check_trans_type_strs) ? + ia_check_trans_type_strs[trans_type] : "unknown"); + } + + if (validation_bits & CHECK_VALID_OPERATION) { + u8 op = CHECK_OPERATION(check); + + /* + * CACHE has more operation types than TLB or BUS, though the + * name and the order are the same. + */ + u8 max_ops = (err_type == ERR_TYPE_CACHE) ? 9 : 7; + + printk("%sOperation: %u, %s\n", pfx, op, + op < max_ops ? ia_check_op_strs[op] : "unknown"); + } + + if (validation_bits & CHECK_VALID_LEVEL) + printk("%sLevel: %llu\n", pfx, CHECK_LEVEL(check)); + + if (validation_bits & CHECK_VALID_PCC) + print_bool("Processor Context Corrupt", pfx, check, CHECK_PCC); + + if (validation_bits & CHECK_VALID_UNCORRECTED) + print_bool("Uncorrected", pfx, check, CHECK_UNCORRECTED); + + if (validation_bits & CHECK_VALID_PRECISE_IP) + print_bool("Precise IP", pfx, check, CHECK_PRECISE_IP); + + if (validation_bits & CHECK_VALID_RESTARTABLE_IP) + print_bool("Restartable IP", pfx, check, CHECK_RESTARTABLE_IP); + + if (validation_bits & CHECK_VALID_OVERFLOW) + print_bool("Overflow", pfx, check, CHECK_OVERFLOW); + + if (err_type != ERR_TYPE_BUS) + return; + + if (validation_bits & CHECK_VALID_BUS_PART_TYPE) { + u8 part_type = CHECK_BUS_PART_TYPE(check); + + printk("%sParticipation Type: %u, %s\n", pfx, part_type, + part_type < ARRAY_SIZE(ia_check_bus_part_type_strs) ? + ia_check_bus_part_type_strs[part_type] : "unknown"); + } + + if (validation_bits & CHECK_VALID_BUS_TIME_OUT) + print_bool("Time Out", pfx, check, CHECK_BUS_TIME_OUT); + + if (validation_bits & CHECK_VALID_BUS_ADDR_SPACE) { + u8 addr_space = CHECK_BUS_ADDR_SPACE(check); + + printk("%sAddress Space: %u, %s\n", pfx, addr_space, + addr_space < ARRAY_SIZE(ia_check_bus_addr_space_strs) ? + ia_check_bus_addr_space_strs[addr_space] : "unknown"); + } +} + +void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc) +{ + int i; + struct cper_ia_err_info *err_info; + struct cper_ia_proc_ctx *ctx_info; + char newpfx[64], infopfx[64]; + u8 err_type; + + if (proc->validation_bits & VALID_LAPIC_ID) + printk("%sLocal APIC_ID: 0x%llx\n", pfx, proc->lapic_id); + + if (proc->validation_bits & VALID_CPUID_INFO) { + printk("%sCPUID Info:\n", pfx); + print_hex_dump(pfx, "", DUMP_PREFIX_OFFSET, 16, 4, proc->cpuid, + sizeof(proc->cpuid), 0); + } + + snprintf(newpfx, sizeof(newpfx), "%s ", pfx); + + err_info = (struct cper_ia_err_info *)(proc + 1); + for (i = 0; i < VALID_PROC_ERR_INFO_NUM(proc->validation_bits); i++) { + printk("%sError Information Structure %d:\n", pfx, i); + + err_type = cper_get_err_type(&err_info->err_type); + printk("%sError Structure Type: %s\n", newpfx, + err_type < ARRAY_SIZE(cper_proc_error_type_strs) ? + cper_proc_error_type_strs[err_type] : "unknown"); + + if (err_type >= N_ERR_TYPES) { + printk("%sError Structure Type: %pUl\n", newpfx, + &err_info->err_type); + } + + if (err_info->validation_bits & INFO_VALID_CHECK_INFO) { + printk("%sCheck Information: 0x%016llx\n", newpfx, + err_info->check_info); + + if (err_type < N_ERR_TYPES) { + snprintf(infopfx, sizeof(infopfx), "%s ", + newpfx); + + print_err_info(infopfx, err_type, + err_info->check_info); + } + } + + if (err_info->validation_bits & INFO_VALID_TARGET_ID) { + printk("%sTarget Identifier: 0x%016llx\n", + newpfx, err_info->target_id); + } + + if (err_info->validation_bits & INFO_VALID_REQUESTOR_ID) { + printk("%sRequestor Identifier: 0x%016llx\n", + newpfx, err_info->requestor_id); + } + + if (err_info->validation_bits & INFO_VALID_RESPONDER_ID) { + printk("%sResponder Identifier: 0x%016llx\n", + newpfx, err_info->responder_id); + } + + if (err_info->validation_bits & INFO_VALID_IP) { + printk("%sInstruction Pointer: 0x%016llx\n", + newpfx, err_info->ip); + } + + err_info++; + } + + ctx_info = (struct cper_ia_proc_ctx *)err_info; + for (i = 0; i < VALID_PROC_CXT_INFO_NUM(proc->validation_bits); i++) { + int size = sizeof(*ctx_info) + ctx_info->reg_arr_size; + int groupsize = 4; + + printk("%sContext Information Structure %d:\n", pfx, i); + + printk("%sRegister Context Type: %s\n", newpfx, + ctx_info->reg_ctx_type < ARRAY_SIZE(ia_reg_ctx_strs) ? + ia_reg_ctx_strs[ctx_info->reg_ctx_type] : "unknown"); + + printk("%sRegister Array Size: 0x%04x\n", newpfx, + ctx_info->reg_arr_size); + + if (ctx_info->reg_ctx_type == CTX_TYPE_MSR) { + groupsize = 8; /* MSRs are 8 bytes wide. */ + printk("%sMSR Address: 0x%08x\n", newpfx, + ctx_info->msr_addr); + } + + if (ctx_info->reg_ctx_type == CTX_TYPE_MMREG) { + printk("%sMM Register Address: 0x%016llx\n", newpfx, + ctx_info->mm_reg_addr); + } + + printk("%sRegister Array:\n", newpfx); + print_hex_dump(newpfx, "", DUMP_PREFIX_OFFSET, 16, groupsize, + (ctx_info + 1), ctx_info->reg_arr_size, 0); + + ctx_info = (struct cper_ia_proc_ctx *)((long)ctx_info + size); + } +} diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index c165933ebf38..3bf0dca378a6 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -37,8 +37,6 @@ #include <acpi/ghes.h> #include <ras/ras_event.h> -#define INDENT_SP " " - static char rcd_decode_str[CPER_REC_LEN]; /* @@ -433,7 +431,7 @@ cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text); - snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + snprintf(newpfx, sizeof(newpfx), "%s ", pfx); if (guid_equal(sec_type, &CPER_SEC_PROC_GENERIC)) { struct cper_sec_proc_generic *proc_err = acpi_hest_get_payload(gdata); @@ -470,6 +468,16 @@ cper_estatus_print_section(const char *pfx, struct acpi_hest_generic_data *gdata else goto err_section_too_small; #endif +#if defined(CONFIG_UEFI_CPER_X86) + } else if (guid_equal(sec_type, &CPER_SEC_PROC_IA)) { + struct cper_sec_proc_ia *ia_err = acpi_hest_get_payload(gdata); + + printk("%ssection_type: IA32/X64 processor error\n", newpfx); + if (gdata->error_data_length >= sizeof(*ia_err)) + cper_print_proc_ia(newpfx, ia_err); + else + goto err_section_too_small; +#endif } else { const void *err = acpi_hest_get_payload(gdata); @@ -500,7 +508,7 @@ void cper_estatus_print(const char *pfx, "It has been corrected by h/w " "and requires no further action"); printk("%s""event severity: %s\n", pfx, cper_severity_str(severity)); - snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP); + snprintf(newpfx, sizeof(newpfx), "%s ", pfx); apei_estatus_for_each_section(estatus, gdata) { cper_estatus_print_section(newpfx, gdata, sec_no); diff --git a/drivers/firmware/efi/libstub/secureboot.c b/drivers/firmware/efi/libstub/secureboot.c index 8f07eb414c00..72d9dfbebf08 100644 --- a/drivers/firmware/efi/libstub/secureboot.c +++ b/drivers/firmware/efi/libstub/secureboot.c @@ -30,6 +30,9 @@ static const efi_char16_t shim_MokSBState_name[] = L"MokSBState"; /* * Determine whether we're in secure boot mode. + * + * Please keep the logic in sync with + * arch/x86/xen/efi.c:xen_efi_get_secureboot(). */ enum efi_secureboot_mode efi_get_secureboot(efi_system_table_t *sys_table_arg) { diff --git a/drivers/firmware/efi/libstub/tpm.c b/drivers/firmware/efi/libstub/tpm.c index 9d08cea3f1b0..caa37a6dd9d4 100644 --- a/drivers/firmware/efi/libstub/tpm.c +++ b/drivers/firmware/efi/libstub/tpm.c @@ -59,7 +59,7 @@ void efi_enable_reset_attack_mitigation(efi_system_table_t *sys_table_arg) #endif -void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg) +static void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg) { efi_guid_t tcg2_guid = EFI_TCG2_PROTOCOL_GUID; efi_guid_t linux_eventlog_guid = LINUX_EFI_TPM_EVENT_LOG_GUID; diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c index 88a3558b7916..815bdb42e3f0 100644 --- a/drivers/gpu/host1x/bus.c +++ b/drivers/gpu/host1x/bus.c @@ -314,6 +314,11 @@ static int host1x_device_match(struct device *dev, struct device_driver *drv) return strcmp(dev_name(dev), drv->name) == 0; } +static int host1x_dma_configure(struct device *dev) +{ + return of_dma_configure(dev, dev->of_node, true); +} + static const struct dev_pm_ops host1x_device_pm_ops = { .suspend = pm_generic_suspend, .resume = pm_generic_resume, @@ -326,8 +331,8 @@ static const struct dev_pm_ops host1x_device_pm_ops = { struct bus_type host1x_bus_type = { .name = "host1x", .match = host1x_device_match, + .dma_configure = host1x_dma_configure, .pm = &host1x_device_pm_ops, - .force_dma = true, }; static void __host1x_device_del(struct host1x_device *device) @@ -416,7 +421,7 @@ static int host1x_device_add(struct host1x *host1x, device->dev.bus = &host1x_bus_type; device->dev.parent = host1x->dev; - of_dma_configure(&device->dev, host1x->dev->of_node); + of_dma_configure(&device->dev, host1x->dev->of_node, true); err = host1x_device_parse_dt(device, driver); if (err < 0) { diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 6ec307c93ece..f10840ad465c 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -717,15 +717,12 @@ config SENSORS_LTC2945 be called ltc2945. config SENSORS_LTC2990 - tristate "Linear Technology LTC2990 (current monitoring mode only)" + tristate "Linear Technology LTC2990" depends on I2C help If you say yes here you get support for Linear Technology LTC2990 I2C System Monitor. The LTC2990 supports a combination of voltage, - current and temperature monitoring, but in addition to the Vcc supply - voltage and chip temperature, this driver currently only supports - reading two currents by measuring two differential voltages across - series resistors. + current and temperature monitoring. This driver can also be built as a module. If so, the module will be called ltc2990. diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 975c43d446f8..a6636fe42189 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -125,6 +125,8 @@ struct atk_data { int temperature_count; int fan_count; struct list_head sensor_list; + struct attribute_group attr_group; + const struct attribute_group *attr_groups[2]; struct { struct dentry *root; @@ -188,7 +190,6 @@ static int atk_add(struct acpi_device *device); static int atk_remove(struct acpi_device *device); static void atk_print_sensor(struct atk_data *data, union acpi_object *obj); static int atk_read_value(struct atk_sensor_data *sensor, u64 *value); -static void atk_free_sensors(struct atk_data *data); static struct acpi_driver atk_driver = { .name = ATK_HID, @@ -262,14 +263,6 @@ static ssize_t atk_limit2_show(struct device *dev, return sprintf(buf, "%lld\n", value); } -static ssize_t atk_name_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "atk0110\n"); -} -static struct device_attribute atk_name_attr = - __ATTR(name, 0444, atk_name_show, NULL); - static void atk_init_attribute(struct device_attribute *attr, char *name, sysfs_show_func show) { @@ -912,15 +905,13 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj) limit1 = atk_get_pack_member(data, obj, HWMON_PACK_LIMIT1); limit2 = atk_get_pack_member(data, obj, HWMON_PACK_LIMIT2); - sensor = kzalloc(sizeof(*sensor), GFP_KERNEL); + sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; - sensor->acpi_name = kstrdup(name->string.pointer, GFP_KERNEL); - if (!sensor->acpi_name) { - err = -ENOMEM; - goto out; - } + sensor->acpi_name = devm_kstrdup(dev, name->string.pointer, GFP_KERNEL); + if (!sensor->acpi_name) + return -ENOMEM; INIT_LIST_HEAD(&sensor->list); sensor->type = type; @@ -961,9 +952,6 @@ static int atk_add_sensor(struct atk_data *data, union acpi_object *obj) (*num)++; return 1; -out: - kfree(sensor); - return err; } static int atk_enumerate_old_hwmon(struct atk_data *data) @@ -1004,8 +992,7 @@ static int atk_enumerate_old_hwmon(struct atk_data *data) dev_warn(dev, METHOD_OLD_ENUM_TMP ": ACPI exception: %s\n", acpi_format_exception(status)); - ret = -ENODEV; - goto cleanup; + return -ENODEV; } pack = buf.pointer; @@ -1026,8 +1013,7 @@ static int atk_enumerate_old_hwmon(struct atk_data *data) dev_warn(dev, METHOD_OLD_ENUM_FAN ": ACPI exception: %s\n", acpi_format_exception(status)); - ret = -ENODEV; - goto cleanup; + return -ENODEV; } pack = buf.pointer; @@ -1041,9 +1027,6 @@ static int atk_enumerate_old_hwmon(struct atk_data *data) ACPI_FREE(buf.pointer); return count; -cleanup: - atk_free_sensors(data); - return ret; } static int atk_ec_present(struct atk_data *data) @@ -1193,76 +1176,44 @@ static int atk_enumerate_new_hwmon(struct atk_data *data) return err; } -static int atk_create_files(struct atk_data *data) +static int atk_init_attribute_groups(struct atk_data *data) { + struct device *dev = &data->acpi_dev->dev; struct atk_sensor_data *s; - int err; + struct attribute **attrs; + int i = 0; + int len = (data->voltage_count + data->temperature_count + + data->fan_count) * 4 + 1; - list_for_each_entry(s, &data->sensor_list, list) { - err = device_create_file(data->hwmon_dev, &s->input_attr); - if (err) - return err; - err = device_create_file(data->hwmon_dev, &s->label_attr); - if (err) - return err; - err = device_create_file(data->hwmon_dev, &s->limit1_attr); - if (err) - return err; - err = device_create_file(data->hwmon_dev, &s->limit2_attr); - if (err) - return err; - } - - err = device_create_file(data->hwmon_dev, &atk_name_attr); - - return err; -} - -static void atk_remove_files(struct atk_data *data) -{ - struct atk_sensor_data *s; + attrs = devm_kcalloc(dev, len, sizeof(struct attribute *), GFP_KERNEL); + if (!attrs) + return -ENOMEM; list_for_each_entry(s, &data->sensor_list, list) { - device_remove_file(data->hwmon_dev, &s->input_attr); - device_remove_file(data->hwmon_dev, &s->label_attr); - device_remove_file(data->hwmon_dev, &s->limit1_attr); - device_remove_file(data->hwmon_dev, &s->limit2_attr); + attrs[i++] = &s->input_attr.attr; + attrs[i++] = &s->label_attr.attr; + attrs[i++] = &s->limit1_attr.attr; + attrs[i++] = &s->limit2_attr.attr; } - device_remove_file(data->hwmon_dev, &atk_name_attr); -} -static void atk_free_sensors(struct atk_data *data) -{ - struct list_head *head = &data->sensor_list; - struct atk_sensor_data *s, *tmp; + data->attr_group.attrs = attrs; + data->attr_groups[0] = &data->attr_group; - list_for_each_entry_safe(s, tmp, head, list) { - kfree(s->acpi_name); - kfree(s); - } + return 0; } static int atk_register_hwmon(struct atk_data *data) { struct device *dev = &data->acpi_dev->dev; - int err; dev_dbg(dev, "registering hwmon device\n"); - data->hwmon_dev = hwmon_device_register(dev); + data->hwmon_dev = hwmon_device_register_with_groups(dev, "atk0110", + data, + data->attr_groups); if (IS_ERR(data->hwmon_dev)) return PTR_ERR(data->hwmon_dev); - dev_dbg(dev, "populating sysfs directory\n"); - err = atk_create_files(data); - if (err) - goto remove; - return 0; -remove: - /* Cleanup the registered files */ - atk_remove_files(data); - hwmon_device_unregister(data->hwmon_dev); - return err; } static int atk_probe_if(struct atk_data *data) @@ -1350,7 +1301,7 @@ static int atk_add(struct acpi_device *device) dev_dbg(&device->dev, "adding...\n"); - data = kzalloc(sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(&device->dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -1397,20 +1348,20 @@ static int atk_add(struct acpi_device *device) goto out; } + err = atk_init_attribute_groups(data); + if (err) + goto out; err = atk_register_hwmon(data); if (err) - goto cleanup; + goto out; atk_debugfs_init(data); device->driver_data = data; return 0; -cleanup: - atk_free_sensors(data); out: if (data->disable_ec) atk_ec_ctl(data, 0); - kfree(data); return err; } @@ -1423,8 +1374,6 @@ static int atk_remove(struct acpi_device *device) atk_debugfs_cleanup(data); - atk_remove_files(data); - atk_free_sensors(data); hwmon_device_unregister(data->hwmon_dev); if (data->disable_ec) { @@ -1432,8 +1381,6 @@ static int atk_remove(struct acpi_device *device) dev_err(&device->dev, "Failed to disable EC\n"); } - kfree(data); - return 0; } diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c index 5e78229ade04..22d3a84f13ef 100644 --- a/drivers/hwmon/fschmd.c +++ b/drivers/hwmon/fschmd.c @@ -105,7 +105,7 @@ static const u8 FSCHMD_REG_VOLT[7][6] = { static const int FSCHMD_NO_VOLT_SENSORS[7] = { 3, 3, 3, 3, 3, 3, 6 }; /* - * minimum pwm at which the fan is driven (pwm can by increased depending on + * minimum pwm at which the fan is driven (pwm can be increased depending on * the temp. Notice that for the scy some fans share there minimum speed. * Also notice that with the scy the sensor order is different than with the * other chips, this order was in the 2.4 driver and kept for consistency. diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 32083e452cde..e88c01961948 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -698,6 +698,9 @@ hwmon_device_register_with_info(struct device *dev, const char *name, if (chip && (!chip->ops || !chip->ops->is_visible || !chip->info)) return ERR_PTR(-EINVAL); + if (chip && !dev) + return ERR_PTR(-EINVAL); + return __hwmon_device_register(dev, name, drvdata, chip, extra_groups); } EXPORT_SYMBOL_GPL(hwmon_device_register_with_info); diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 3b73dee6fdc6..17c6460ae351 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -37,6 +37,10 @@ MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); /* Provide lock for writing to NB_SMU_IND_ADDR */ static DEFINE_MUTEX(nb_smu_ind_mutex); +#ifndef PCI_DEVICE_ID_AMD_15H_M70H_NB_F3 +#define PCI_DEVICE_ID_AMD_15H_M70H_NB_F3 0x15b3 +#endif + #ifndef PCI_DEVICE_ID_AMD_17H_DF_F3 #define PCI_DEVICE_ID_AMD_17H_DF_F3 0x1463 #endif @@ -81,6 +85,7 @@ struct k10temp_data { void (*read_tempreg)(struct pci_dev *pdev, u32 *regval); int temp_offset; u32 temp_adjust_mask; + bool show_tdie; }; struct tctl_offset { @@ -141,17 +146,24 @@ static void read_tempreg_nb_f17(struct pci_dev *pdev, u32 *regval) F17H_M01H_REPORTED_TEMP_CTRL_OFFSET, regval); } -static ssize_t temp1_input_show(struct device *dev, - struct device_attribute *attr, char *buf) +static unsigned int get_raw_temp(struct k10temp_data *data) { - struct k10temp_data *data = dev_get_drvdata(dev); - u32 regval; unsigned int temp; + u32 regval; data->read_tempreg(data->pdev, ®val); temp = (regval >> 21) * 125; if (regval & data->temp_adjust_mask) temp -= 49000; + return temp; +} + +static ssize_t temp1_input_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct k10temp_data *data = dev_get_drvdata(dev); + unsigned int temp = get_raw_temp(data); + if (temp > data->temp_offset) temp -= data->temp_offset; else @@ -160,6 +172,23 @@ static ssize_t temp1_input_show(struct device *dev, return sprintf(buf, "%u\n", temp); } +static ssize_t temp2_input_show(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct k10temp_data *data = dev_get_drvdata(dev); + unsigned int temp = get_raw_temp(data); + + return sprintf(buf, "%u\n", temp); +} + +static ssize_t temp_label_show(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + + return sprintf(buf, "%s\n", attr->index ? "Tctl" : "Tdie"); +} + static ssize_t temp1_max_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -187,16 +216,23 @@ static DEVICE_ATTR_RO(temp1_max); static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit, NULL, 1); +static SENSOR_DEVICE_ATTR(temp1_label, 0444, temp_label_show, NULL, 0); +static DEVICE_ATTR_RO(temp2_input); +static SENSOR_DEVICE_ATTR(temp2_label, 0444, temp_label_show, NULL, 1); + static umode_t k10temp_is_visible(struct kobject *kobj, struct attribute *attr, int index) { struct device *dev = container_of(kobj, struct device, kobj); struct k10temp_data *data = dev_get_drvdata(dev); struct pci_dev *pdev = data->pdev; + u32 reg; - if (index >= 2) { - u32 reg; - + switch (index) { + case 0 ... 1: /* temp1_input, temp1_max */ + default: + break; + case 2 ... 3: /* temp1_crit, temp1_crit_hyst */ if (!data->read_htcreg) return 0; @@ -208,6 +244,11 @@ static umode_t k10temp_is_visible(struct kobject *kobj, data->read_htcreg(data->pdev, ®); if (!(reg & HTC_ENABLE)) return 0; + break; + case 4 ... 6: /* temp1_label, temp2_input, temp2_label */ + if (!data->show_tdie) + return 0; + break; } return attr->mode; } @@ -217,6 +258,9 @@ static struct attribute *k10temp_attrs[] = { &dev_attr_temp1_max.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr, &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_label.dev_attr.attr, + &dev_attr_temp2_input.attr, + &sensor_dev_attr_temp2_label.dev_attr.attr, NULL }; @@ -292,6 +336,7 @@ static int k10temp_probe(struct pci_dev *pdev, } else if (boot_cpu_data.x86 == 0x17) { data->temp_adjust_mask = 0x80000; data->read_tempreg = read_tempreg_nb_f17; + data->show_tdie = true; } else { data->read_htcreg = read_htcreg_pci; data->read_tempreg = read_tempreg_pci; @@ -320,6 +365,7 @@ static const struct pci_device_id k10temp_id_table[] = { { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F3) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M70H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) }, { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) }, diff --git a/drivers/hwmon/ltc2990.c b/drivers/hwmon/ltc2990.c index 8f8fe059ab48..2aefdc58b242 100644 --- a/drivers/hwmon/ltc2990.c +++ b/drivers/hwmon/ltc2990.c @@ -5,18 +5,16 @@ * Author: Mike Looijmans <mike.looijmans@topic.nl> * * License: GPLv2 - * - * This driver assumes the chip is wired as a dual current monitor, and - * reports the voltage drop across two series resistors. It also reports - * the chip's internal temperature and Vcc power supply voltage. */ +#include <linux/bitops.h> #include <linux/err.h> #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/i2c.h> #include <linux/kernel.h> #include <linux/module.h> +#include <linux/of.h> #define LTC2990_STATUS 0x00 #define LTC2990_CONTROL 0x01 @@ -28,45 +26,108 @@ #define LTC2990_V4_MSB 0x0C #define LTC2990_VCC_MSB 0x0E -#define LTC2990_CONTROL_KELVIN BIT(7) -#define LTC2990_CONTROL_SINGLE BIT(6) -#define LTC2990_CONTROL_MEASURE_ALL (0x3 << 3) -#define LTC2990_CONTROL_MODE_CURRENT 0x06 -#define LTC2990_CONTROL_MODE_VOLTAGE 0x07 +#define LTC2990_IN0 BIT(0) +#define LTC2990_IN1 BIT(1) +#define LTC2990_IN2 BIT(2) +#define LTC2990_IN3 BIT(3) +#define LTC2990_IN4 BIT(4) +#define LTC2990_CURR1 BIT(5) +#define LTC2990_CURR2 BIT(6) +#define LTC2990_TEMP1 BIT(7) +#define LTC2990_TEMP2 BIT(8) +#define LTC2990_TEMP3 BIT(9) +#define LTC2990_NONE 0 +#define LTC2990_ALL GENMASK(9, 0) -/* convert raw register value to sign-extended integer in 16-bit range */ -static int ltc2990_voltage_to_int(int raw) -{ - if (raw & BIT(14)) - return -(0x4000 - (raw & 0x3FFF)) << 2; - else - return (raw & 0x3FFF) << 2; -} +#define LTC2990_MODE0_SHIFT 0 +#define LTC2990_MODE0_MASK GENMASK(2, 0) +#define LTC2990_MODE1_SHIFT 3 +#define LTC2990_MODE1_MASK GENMASK(1, 0) + +/* Enabled measurements for mode bits 2..0 */ +static const int ltc2990_attrs_ena_0[] = { + LTC2990_IN1 | LTC2990_IN2 | LTC2990_TEMP3, + LTC2990_CURR1 | LTC2990_TEMP3, + LTC2990_CURR1 | LTC2990_IN3 | LTC2990_IN4, + LTC2990_TEMP2 | LTC2990_IN3 | LTC2990_IN4, + LTC2990_TEMP2 | LTC2990_CURR2, + LTC2990_TEMP2 | LTC2990_TEMP3, + LTC2990_CURR1 | LTC2990_CURR2, + LTC2990_IN1 | LTC2990_IN2 | LTC2990_IN3 | LTC2990_IN4 +}; + +/* Enabled measurements for mode bits 4..3 */ +static const int ltc2990_attrs_ena_1[] = { + LTC2990_NONE, + LTC2990_TEMP2 | LTC2990_IN1 | LTC2990_CURR1, + LTC2990_TEMP3 | LTC2990_IN3 | LTC2990_CURR2, + LTC2990_ALL +}; + +struct ltc2990_data { + struct i2c_client *i2c; + u32 mode[2]; +}; /* Return the converted value from the given register in uV or mC */ -static int ltc2990_get_value(struct i2c_client *i2c, u8 reg, int *result) +static int ltc2990_get_value(struct i2c_client *i2c, int index, int *result) { int val; + u8 reg; + + switch (index) { + case LTC2990_IN0: + reg = LTC2990_VCC_MSB; + break; + case LTC2990_IN1: + case LTC2990_CURR1: + case LTC2990_TEMP2: + reg = LTC2990_V1_MSB; + break; + case LTC2990_IN2: + reg = LTC2990_V2_MSB; + break; + case LTC2990_IN3: + case LTC2990_CURR2: + case LTC2990_TEMP3: + reg = LTC2990_V3_MSB; + break; + case LTC2990_IN4: + reg = LTC2990_V4_MSB; + break; + case LTC2990_TEMP1: + reg = LTC2990_TINT_MSB; + break; + default: + return -EINVAL; + } val = i2c_smbus_read_word_swapped(i2c, reg); if (unlikely(val < 0)) return val; - switch (reg) { - case LTC2990_TINT_MSB: - /* internal temp, 0.0625 degrees/LSB, 13-bit */ - val = (val & 0x1FFF) << 3; - *result = (val * 1000) >> 7; + switch (index) { + case LTC2990_TEMP1: + case LTC2990_TEMP2: + case LTC2990_TEMP3: + /* temp, 0.0625 degrees/LSB */ + *result = sign_extend32(val, 12) * 1000 / 16; break; - case LTC2990_V1_MSB: - case LTC2990_V3_MSB: - /* Vx-Vy, 19.42uV/LSB. Depends on mode. */ - *result = ltc2990_voltage_to_int(val) * 1942 / (4 * 100); + case LTC2990_CURR1: + case LTC2990_CURR2: + /* Vx-Vy, 19.42uV/LSB */ + *result = sign_extend32(val, 14) * 1942 / 100; break; - case LTC2990_VCC_MSB: - /* Vcc, 305.18μV/LSB, 2.5V offset */ - *result = (ltc2990_voltage_to_int(val) * 30518 / - (4 * 100 * 1000)) + 2500; + case LTC2990_IN0: + /* Vcc, 305.18uV/LSB, 2.5V offset */ + *result = sign_extend32(val, 14) * 30518 / (100 * 1000) + 2500; + break; + case LTC2990_IN1: + case LTC2990_IN2: + case LTC2990_IN3: + case LTC2990_IN4: + /* Vx, 305.18uV/LSB */ + *result = sign_extend32(val, 14) * 30518 / (100 * 1000); break; default: return -EINVAL; /* won't happen, keep compiler happy */ @@ -79,48 +140,117 @@ static ssize_t ltc2990_show_value(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct ltc2990_data *data = dev_get_drvdata(dev); int value; int ret; - ret = ltc2990_get_value(dev_get_drvdata(dev), attr->index, &value); + ret = ltc2990_get_value(data->i2c, attr->index, &value); if (unlikely(ret < 0)) return ret; return snprintf(buf, PAGE_SIZE, "%d\n", value); } +static umode_t ltc2990_attrs_visible(struct kobject *kobj, + struct attribute *a, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct ltc2990_data *data = dev_get_drvdata(dev); + struct device_attribute *da = + container_of(a, struct device_attribute, attr); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + + int attrs_mask = LTC2990_IN0 | LTC2990_TEMP1 | + (ltc2990_attrs_ena_0[data->mode[0]] & + ltc2990_attrs_ena_1[data->mode[1]]); + + if (attr->index & attrs_mask) + return a->mode; + + return 0; +} + static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, ltc2990_show_value, NULL, - LTC2990_TINT_MSB); + LTC2990_TEMP1); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_TEMP2); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_TEMP3); static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc2990_show_value, NULL, - LTC2990_V1_MSB); + LTC2990_CURR1); static SENSOR_DEVICE_ATTR(curr2_input, S_IRUGO, ltc2990_show_value, NULL, - LTC2990_V3_MSB); + LTC2990_CURR2); static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, ltc2990_show_value, NULL, - LTC2990_VCC_MSB); + LTC2990_IN0); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_IN1); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_IN2); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_IN3); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, ltc2990_show_value, NULL, + LTC2990_IN4); static struct attribute *ltc2990_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, &sensor_dev_attr_curr1_input.dev_attr.attr, &sensor_dev_attr_curr2_input.dev_attr.attr, &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in4_input.dev_attr.attr, NULL, }; -ATTRIBUTE_GROUPS(ltc2990); + +static const struct attribute_group ltc2990_group = { + .attrs = ltc2990_attrs, + .is_visible = ltc2990_attrs_visible, +}; +__ATTRIBUTE_GROUPS(ltc2990); static int ltc2990_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { int ret; struct device *hwmon_dev; + struct ltc2990_data *data; + struct device_node *of_node = i2c->dev.of_node; if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) return -ENODEV; - /* Setup continuous mode, current monitor */ + data = devm_kzalloc(&i2c->dev, sizeof(struct ltc2990_data), GFP_KERNEL); + if (unlikely(!data)) + return -ENOMEM; + + data->i2c = i2c; + + if (of_node) { + ret = of_property_read_u32_array(of_node, "lltc,meas-mode", + data->mode, 2); + if (ret < 0) + return ret; + + if (data->mode[0] & ~LTC2990_MODE0_MASK || + data->mode[1] & ~LTC2990_MODE1_MASK) + return -EINVAL; + } else { + ret = i2c_smbus_read_byte_data(i2c, LTC2990_CONTROL); + if (ret < 0) + return ret; + + data->mode[0] = ret >> LTC2990_MODE0_SHIFT & LTC2990_MODE0_MASK; + data->mode[1] = ret >> LTC2990_MODE1_SHIFT & LTC2990_MODE1_MASK; + } + + /* Setup continuous mode */ ret = i2c_smbus_write_byte_data(i2c, LTC2990_CONTROL, - LTC2990_CONTROL_MEASURE_ALL | - LTC2990_CONTROL_MODE_CURRENT); + data->mode[0] << LTC2990_MODE0_SHIFT | + data->mode[1] << LTC2990_MODE1_SHIFT); if (ret < 0) { dev_err(&i2c->dev, "Error: Failed to set control mode.\n"); return ret; @@ -134,7 +264,7 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c, hwmon_dev = devm_hwmon_device_register_with_groups(&i2c->dev, i2c->name, - i2c, + data, ltc2990_groups); return PTR_ERR_OR_ZERO(hwmon_dev); diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c index 960a1db6f269..67860ad2e3d9 100644 --- a/drivers/hwmon/mc13783-adc.c +++ b/drivers/hwmon/mc13783-adc.c @@ -63,6 +63,10 @@ static int mc13783_adc_read(struct device *dev, if (ret) return ret; + /* ADIN7 subchannels */ + if (channel >= 16) + channel = 7; + channel &= 0x7; *val = (sample[channel % 4] >> (channel > 3 ? 14 : 2)) & 0x3ff; @@ -111,6 +115,57 @@ static ssize_t mc13783_adc_read_gp(struct device *dev, return sprintf(buf, "%u\n", val); } +static ssize_t mc13783_adc_read_uid(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + unsigned int val; + struct platform_device *pdev = to_platform_device(dev); + kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data; + int ret = mc13783_adc_read(dev, devattr, &val); + + if (ret) + return ret; + + if (driver_data & MC13783_ADC_BPDIV2) + /* MC13892 have 1/2 divider, input range is [0, 4.800V] */ + val = DIV_ROUND_CLOSEST(val * 4800, 1024); + else + /* MC13783 have 0.9 divider, input range is [0, 2.555V] */ + val = DIV_ROUND_CLOSEST(val * 2555, 1024); + + return sprintf(buf, "%u\n", val); +} + +static ssize_t mc13783_adc_read_temp(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + unsigned int val; + struct platform_device *pdev = to_platform_device(dev); + kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data; + int ret = mc13783_adc_read(dev, devattr, &val); + + if (ret) + return ret; + + if (driver_data & MC13783_ADC_BPDIV2) { + /* + * MC13892: + * Die Temperature Read Out Code at 25C 680 + * Temperature change per LSB +0.4244C + */ + ret = DIV_ROUND_CLOSEST(-2635920 + val * 4244, 10); + } else { + /* + * MC13783: + * Die Temperature Read Out Code at 25C 282 + * Temperature change per LSB -1.14C + */ + ret = 346480 - 1140 * val; + } + + return sprintf(buf, "%d\n", ret); +} + static DEVICE_ATTR_RO(name); static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, mc13783_adc_read_bp, NULL, 2); static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, mc13783_adc_read_gp, NULL, 5); @@ -124,6 +179,9 @@ static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, mc13783_adc_read_gp, NULL, 12); static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, mc13783_adc_read_gp, NULL, 13); static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, mc13783_adc_read_gp, NULL, 14); static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, mc13783_adc_read_gp, NULL, 15); +static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, mc13783_adc_read_uid, NULL, 16); +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, + mc13783_adc_read_temp, NULL, 17); static struct attribute *mc13783_attr_base[] = { &dev_attr_name.attr, @@ -131,6 +189,8 @@ static struct attribute *mc13783_attr_base[] = { &sensor_dev_attr_in5_input.dev_attr.attr, &sensor_dev_attr_in6_input.dev_attr.attr, &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in16_input.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, NULL }; diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 0e6bc631a1ca..8b2b72b93885 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -92,7 +92,7 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, struct request *rq; int error; - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_MISC; rq->special = (char *)pc; diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 5a8e8e3c22cd..5f178384876f 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -437,7 +437,7 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, bool delay = false; rq = blk_get_request(drive->queue, - write ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, __GFP_RECLAIM); + write ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); memcpy(scsi_req(rq)->cmd, cmd, BLK_MAX_CDB); ide_req(rq)->type = ATA_PRIV_PC; rq->rq_flags |= rq_flags; @@ -1426,21 +1426,8 @@ static int idecd_capacity_proc_show(struct seq_file *m, void *v) return 0; } -static int idecd_capacity_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idecd_capacity_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idecd_capacity_proc_fops = { - .owner = THIS_MODULE, - .open = idecd_capacity_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static ide_proc_entry_t idecd_proc[] = { - { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops }, + { "capacity", S_IFREG|S_IRUGO, idecd_capacity_proc_show }, {} }; diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c index 2acca12b9c94..b1322400887b 100644 --- a/drivers/ide/ide-cd_ioctl.c +++ b/drivers/ide/ide-cd_ioctl.c @@ -304,7 +304,7 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi) struct request *rq; int ret; - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_MISC; rq->rq_flags = RQF_QUIET; blk_execute_rq(drive->queue, cd->disk, rq, 0); diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c index 4e20747af32e..f4f8afdf8bbe 100644 --- a/drivers/ide/ide-devsets.c +++ b/drivers/ide/ide-devsets.c @@ -166,7 +166,7 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting, if (!(setting->flags & DS_SYNC)) return setting->set(drive, arg); - rq = blk_get_request(q, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(q, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 5; scsi_req(rq)->cmd[0] = REQ_DEVSET_EXEC; diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index f1a7c58fe418..e3b4e659082d 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -478,7 +478,7 @@ static int set_multcount(ide_drive_t *drive, int arg) if (drive->special_flags & IDE_SFLAG_SET_MULTMODE) return -EBUSY; - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_TASKFILE; drive->mult_req = arg; diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c index 82a36ced4e96..95d239b2f646 100644 --- a/drivers/ide/ide-disk_proc.c +++ b/drivers/ide/ide-disk_proc.c @@ -52,19 +52,6 @@ static int idedisk_cache_proc_show(struct seq_file *m, void *v) return 0; } -static int idedisk_cache_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idedisk_cache_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idedisk_cache_proc_fops = { - .owner = THIS_MODULE, - .open = idedisk_cache_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int idedisk_capacity_proc_show(struct seq_file *m, void *v) { ide_drive_t*drive = (ide_drive_t *)m->private; @@ -73,19 +60,6 @@ static int idedisk_capacity_proc_show(struct seq_file *m, void *v) return 0; } -static int idedisk_capacity_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idedisk_capacity_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idedisk_capacity_proc_fops = { - .owner = THIS_MODULE, - .open = idedisk_capacity_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd) { u8 *buf; @@ -114,43 +88,17 @@ static int idedisk_sv_proc_show(struct seq_file *m, void *v) return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES); } -static int idedisk_sv_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idedisk_sv_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idedisk_sv_proc_fops = { - .owner = THIS_MODULE, - .open = idedisk_sv_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int idedisk_st_proc_show(struct seq_file *m, void *v) { return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS); } -static int idedisk_st_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idedisk_st_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idedisk_st_proc_fops = { - .owner = THIS_MODULE, - .open = idedisk_st_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - ide_proc_entry_t ide_disk_proc[] = { - { "cache", S_IFREG|S_IRUGO, &idedisk_cache_proc_fops }, - { "capacity", S_IFREG|S_IRUGO, &idedisk_capacity_proc_fops }, - { "geometry", S_IFREG|S_IRUGO, &ide_geometry_proc_fops }, - { "smart_values", S_IFREG|S_IRUSR, &idedisk_sv_proc_fops }, - { "smart_thresholds", S_IFREG|S_IRUSR, &idedisk_st_proc_fops }, + { "cache", S_IFREG|S_IRUGO, idedisk_cache_proc_show }, + { "capacity", S_IFREG|S_IRUGO, idedisk_capacity_proc_show }, + { "geometry", S_IFREG|S_IRUGO, ide_geometry_proc_show }, + { "smart_values", S_IFREG|S_IRUSR, idedisk_sv_proc_show }, + { "smart_thresholds", S_IFREG|S_IRUSR, idedisk_st_proc_show }, {} }; diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index 54d4d78ca46a..6f344654ef22 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -180,7 +180,6 @@ EXPORT_SYMBOL_GPL(ide_dma_unmap_sg); void ide_dma_off_quietly(ide_drive_t *drive) { drive->dev_flags &= ~IDE_DFLAG_USING_DMA; - ide_toggle_bounce(drive, 0); drive->hwif->dma_ops->dma_host_set(drive, 0); } @@ -211,7 +210,6 @@ EXPORT_SYMBOL(ide_dma_off); void ide_dma_on(ide_drive_t *drive) { drive->dev_flags |= IDE_DFLAG_USING_DMA; - ide_toggle_bounce(drive, 1); drive->hwif->dma_ops->dma_host_set(drive, 1); } diff --git a/drivers/ide/ide-floppy_proc.c b/drivers/ide/ide-floppy_proc.c index 471457ebea67..7f697ddb5fe5 100644 --- a/drivers/ide/ide-floppy_proc.c +++ b/drivers/ide/ide-floppy_proc.c @@ -14,22 +14,9 @@ static int idefloppy_capacity_proc_show(struct seq_file *m, void *v) return 0; } -static int idefloppy_capacity_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idefloppy_capacity_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idefloppy_capacity_proc_fops = { - .owner = THIS_MODULE, - .open = idefloppy_capacity_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - ide_proc_entry_t ide_floppy_proc[] = { - { "capacity", S_IFREG|S_IRUGO, &idefloppy_capacity_proc_fops }, - { "geometry", S_IFREG|S_IRUGO, &ide_geometry_proc_fops }, + { "capacity", S_IFREG|S_IRUGO, idefloppy_capacity_proc_show }, + { "geometry", S_IFREG|S_IRUGO, ide_geometry_proc_show }, {} }; diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c index 3661abb16a5f..af5119a73689 100644 --- a/drivers/ide/ide-ioctls.c +++ b/drivers/ide/ide-ioctls.c @@ -125,7 +125,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, unsigned long arg) if (NULL == (void *) arg) { struct request *rq; - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_TASKFILE; blk_execute_rq(drive->queue, NULL, rq, 0); err = scsi_req(rq)->result ? -EIO : 0; @@ -222,7 +222,7 @@ static int generic_drive_reset(ide_drive_t *drive) struct request *rq; int ret = 0; - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd_len = 1; scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET; diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index e1180fa46196..78cb79eddc8b 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -6,32 +6,6 @@ #include <linux/ide.h> #include <linux/bitops.h> -/** - * ide_toggle_bounce - handle bounce buffering - * @drive: drive to update - * @on: on/off boolean - * - * Enable or disable bounce buffering for the device. Drives move - * between PIO and DMA and that changes the rules we need. - */ - -void ide_toggle_bounce(ide_drive_t *drive, int on) -{ - u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ - - if (!PCI_DMA_BUS_IS_PHYS) { - addr = BLK_BOUNCE_ANY; - } else if (on && drive->media == ide_disk) { - struct device *dev = drive->hwif->dev; - - if (dev && dev->dma_mask) - addr = *dev->dma_mask; - } - - if (drive->queue) - blk_queue_bounce_limit(drive->queue, addr); -} - u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48) { struct ide_taskfile *tf = &cmd->tf; diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index 6465bcc7cea6..622f0edb3945 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -32,7 +32,7 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) } spin_unlock_irq(&hwif->lock); - rq = blk_get_request(q, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(q, REQ_OP_DRV_IN, 0); scsi_req(rq)->cmd[0] = REQ_PARK_HEADS; scsi_req(rq)->cmd_len = 1; ide_req(rq)->type = ATA_PRIV_MISC; @@ -47,7 +47,7 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) * Make sure that *some* command is sent to the drive after the * timeout has expired, so power management will be reenabled. */ - rq = blk_get_request(q, REQ_OP_DRV_IN, GFP_NOWAIT); + rq = blk_get_request(q, REQ_OP_DRV_IN, BLK_MQ_REQ_NOWAIT); if (IS_ERR(rq)) goto out; diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c index ad8a125defdd..59217aa1d1fb 100644 --- a/drivers/ide/ide-pm.c +++ b/drivers/ide/ide-pm.c @@ -19,7 +19,7 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg) } memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_PM_SUSPEND; rq->special = &rqpm; rqpm.pm_step = IDE_PM_START_SUSPEND; @@ -90,8 +90,7 @@ int generic_ide_resume(struct device *dev) } memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request_flags(drive->queue, REQ_OP_DRV_IN, - BLK_MQ_REQ_PREEMPT); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, BLK_MQ_REQ_PREEMPT); ide_req(rq)->type = ATA_PRIV_PM_RESUME; rq->special = &rqpm; rqpm.pm_step = IDE_PM_START_RESUME; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 2019e66eada7..56d7bc228cb3 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -796,8 +796,7 @@ static int ide_init_queue(ide_drive_t *drive) * This will be fixed once we teach pci_map_sg() about our boundary * requirements, hopefully soon. *FIXME* */ - if (!PCI_DMA_BUS_IS_PHYS) - max_sg_entries >>= 1; + max_sg_entries >>= 1; #endif /* CONFIG_PCI */ blk_queue_max_segments(q, max_sg_entries); @@ -805,9 +804,6 @@ static int ide_init_queue(ide_drive_t *drive) /* assign drive queue */ drive->queue = q; - /* needs drive->queue to be set */ - ide_toggle_bounce(drive, 1); - return 0; } diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c index 863db44c7916..45c997430332 100644 --- a/drivers/ide/ide-proc.c +++ b/drivers/ide/ide-proc.c @@ -56,19 +56,6 @@ static int ide_imodel_proc_show(struct seq_file *m, void *v) return 0; } -static int ide_imodel_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_imodel_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_imodel_proc_fops = { - .owner = THIS_MODULE, - .open = ide_imodel_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int ide_mate_proc_show(struct seq_file *m, void *v) { ide_hwif_t *hwif = (ide_hwif_t *) m->private; @@ -80,19 +67,6 @@ static int ide_mate_proc_show(struct seq_file *m, void *v) return 0; } -static int ide_mate_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_mate_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_mate_proc_fops = { - .owner = THIS_MODULE, - .open = ide_mate_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int ide_channel_proc_show(struct seq_file *m, void *v) { ide_hwif_t *hwif = (ide_hwif_t *) m->private; @@ -101,19 +75,6 @@ static int ide_channel_proc_show(struct seq_file *m, void *v) return 0; } -static int ide_channel_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_channel_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_channel_proc_fops = { - .owner = THIS_MODULE, - .open = ide_channel_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int ide_identify_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *)m->private; @@ -141,19 +102,6 @@ static int ide_identify_proc_show(struct seq_file *m, void *v) return 0; } -static int ide_identify_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_identify_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_identify_proc_fops = { - .owner = THIS_MODULE, - .open = ide_identify_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /** * ide_find_setting - find a specific setting * @st: setting table pointer @@ -441,27 +389,14 @@ static const struct file_operations ide_settings_proc_fops = { .write = ide_settings_proc_write, }; -static int ide_capacity_proc_show(struct seq_file *m, void *v) +int ide_capacity_proc_show(struct seq_file *m, void *v) { seq_printf(m, "%llu\n", (long long)0x7fffffff); return 0; } +EXPORT_SYMBOL_GPL(ide_capacity_proc_show); -static int ide_capacity_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_capacity_proc_show, NULL); -} - -const struct file_operations ide_capacity_proc_fops = { - .owner = THIS_MODULE, - .open = ide_capacity_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -EXPORT_SYMBOL_GPL(ide_capacity_proc_fops); - -static int ide_geometry_proc_show(struct seq_file *m, void *v) +int ide_geometry_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *) m->private; @@ -471,20 +406,7 @@ static int ide_geometry_proc_show(struct seq_file *m, void *v) drive->bios_cyl, drive->bios_head, drive->bios_sect); return 0; } - -static int ide_geometry_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_geometry_proc_show, PDE_DATA(inode)); -} - -const struct file_operations ide_geometry_proc_fops = { - .owner = THIS_MODULE, - .open = ide_geometry_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -EXPORT_SYMBOL(ide_geometry_proc_fops); +EXPORT_SYMBOL(ide_geometry_proc_show); static int ide_dmodel_proc_show(struct seq_file *seq, void *v) { @@ -495,19 +417,6 @@ static int ide_dmodel_proc_show(struct seq_file *seq, void *v) return 0; } -static int ide_dmodel_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_dmodel_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_dmodel_proc_fops = { - .owner = THIS_MODULE, - .open = ide_dmodel_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int ide_driver_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *)m->private; @@ -523,65 +432,6 @@ static int ide_driver_proc_show(struct seq_file *m, void *v) return 0; } -static int ide_driver_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_driver_proc_show, PDE_DATA(inode)); -} - -static int ide_replace_subdriver(ide_drive_t *drive, const char *driver) -{ - struct device *dev = &drive->gendev; - int ret = 1; - int err; - - device_release_driver(dev); - /* FIXME: device can still be in use by previous driver */ - strlcpy(drive->driver_req, driver, sizeof(drive->driver_req)); - err = device_attach(dev); - if (err < 0) - printk(KERN_WARNING "IDE: %s: device_attach error: %d\n", - __func__, err); - drive->driver_req[0] = 0; - if (dev->driver == NULL) { - err = device_attach(dev); - if (err < 0) - printk(KERN_WARNING - "IDE: %s: device_attach(2) error: %d\n", - __func__, err); - } - if (dev->driver && !strcmp(dev->driver->name, driver)) - ret = 0; - - return ret; -} - -static ssize_t ide_driver_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - ide_drive_t *drive = PDE_DATA(file_inode(file)); - char name[32]; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (count > 31) - count = 31; - if (copy_from_user(name, buffer, count)) - return -EFAULT; - name[count] = '\0'; - if (ide_replace_subdriver(drive, name)) - return -EINVAL; - return count; -} - -static const struct file_operations ide_driver_proc_fops = { - .owner = THIS_MODULE, - .open = ide_driver_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .write = ide_driver_proc_write, -}; - static int ide_media_proc_show(struct seq_file *m, void *v) { ide_drive_t *drive = (ide_drive_t *) m->private; @@ -613,11 +463,10 @@ static const struct file_operations ide_media_proc_fops = { }; static ide_proc_entry_t generic_drive_entries[] = { - { "driver", S_IFREG|S_IRUGO, &ide_driver_proc_fops }, - { "identify", S_IFREG|S_IRUSR, &ide_identify_proc_fops}, - { "media", S_IFREG|S_IRUGO, &ide_media_proc_fops }, - { "model", S_IFREG|S_IRUGO, &ide_dmodel_proc_fops }, - { "settings", S_IFREG|S_IRUSR|S_IWUSR, &ide_settings_proc_fops}, + { "driver", S_IFREG|S_IRUGO, ide_driver_proc_show }, + { "identify", S_IFREG|S_IRUSR, ide_identify_proc_show }, + { "media", S_IFREG|S_IRUGO, ide_media_proc_show }, + { "model", S_IFREG|S_IRUGO, ide_dmodel_proc_show }, {} }; @@ -628,7 +477,7 @@ static void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p if (!dir || !p) return; while (p->name != NULL) { - ent = proc_create_data(p->name, p->mode, dir, p->proc_fops, data); + ent = proc_create_single_data(p->name, p->mode, dir, p->show, data); if (!ent) return; p++; } @@ -693,8 +542,12 @@ void ide_proc_port_register_devices(ide_hwif_t *hwif) continue; drive->proc = proc_mkdir(drive->name, parent); - if (drive->proc) + if (drive->proc) { ide_add_proc_entries(drive->proc, generic_drive_entries, drive); + proc_create_data("setting", S_IFREG|S_IRUSR|S_IWUSR, + drive->proc, &ide_settings_proc_fops, + drive); + } sprintf(name, "ide%d/%s", (drive->name[2]-'a')/2, drive->name); ent = proc_symlink(drive->name, proc_ide_root, name); if (!ent) return; @@ -704,6 +557,7 @@ void ide_proc_port_register_devices(ide_hwif_t *hwif) void ide_proc_unregister_device(ide_drive_t *drive) { if (drive->proc) { + remove_proc_entry("settings", drive->proc); ide_remove_proc_entries(drive->proc, generic_drive_entries); remove_proc_entry(drive->name, proc_ide_root); remove_proc_entry(drive->name, drive->hwif->proc); @@ -712,9 +566,9 @@ void ide_proc_unregister_device(ide_drive_t *drive) } static ide_proc_entry_t hwif_entries[] = { - { "channel", S_IFREG|S_IRUGO, &ide_channel_proc_fops }, - { "mate", S_IFREG|S_IRUGO, &ide_mate_proc_fops }, - { "model", S_IFREG|S_IRUGO, &ide_imodel_proc_fops }, + { "channel", S_IFREG|S_IRUGO, ide_channel_proc_show }, + { "mate", S_IFREG|S_IRUGO, ide_mate_proc_show }, + { "model", S_IFREG|S_IRUGO, ide_imodel_proc_show }, {} }; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index fd57e8ccc47a..aee7b46d2330 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -854,7 +854,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size) BUG_ON(cmd != REQ_IDETAPE_READ && cmd != REQ_IDETAPE_WRITE); BUG_ON(size < 0 || size % tape->blk_size); - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_MISC; scsi_req(rq)->cmd[13] = cmd; rq->rq_disk = tape->disk; @@ -862,7 +862,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size) if (size) { ret = blk_rq_map_kern(drive->queue, rq, tape->buf, size, - __GFP_RECLAIM); + GFP_NOIO); if (ret) goto out_put; } @@ -1847,22 +1847,9 @@ static int idetape_name_proc_show(struct seq_file *m, void *v) return 0; } -static int idetape_name_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, idetape_name_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations idetape_name_proc_fops = { - .owner = THIS_MODULE, - .open = idetape_name_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static ide_proc_entry_t idetape_proc[] = { - { "capacity", S_IFREG|S_IRUGO, &ide_capacity_proc_fops }, - { "name", S_IFREG|S_IRUGO, &idetape_name_proc_fops }, + { "capacity", S_IFREG|S_IRUGO, ide_capacity_proc_show }, + { "name", S_IFREG|S_IRUGO, idetape_name_proc_show }, {} }; diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index abe0822dd429..c034cd965831 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -431,7 +431,7 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, rq = blk_get_request(drive->queue, (cmd->tf_flags & IDE_TFLAG_WRITE) ? - REQ_OP_DRV_OUT : REQ_OP_DRV_IN, __GFP_RECLAIM); + REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); ide_req(rq)->type = ATA_PRIV_TASKFILE; /* @@ -442,7 +442,7 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, */ if (nsect) { error = blk_rq_map_kern(drive->queue, rq, buf, - nsect * SECTOR_SIZE, __GFP_RECLAIM); + nsect * SECTOR_SIZE, GFP_NOIO); if (error) goto put_req; } diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index 49b34de0aed4..47eb8ca729fe 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -509,18 +509,6 @@ static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v) #undef NY } -static int hp_sdc_rtc_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, hp_sdc_rtc_proc_show, NULL); -} - -static const struct file_operations hp_sdc_rtc_proc_fops = { - .open = hp_sdc_rtc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int hp_sdc_rtc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -713,7 +701,7 @@ static int __init hp_sdc_rtc_init(void) if (misc_register(&hp_sdc_rtc_dev) != 0) printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n"); - proc_create("driver/rtc", 0, NULL, &hp_sdc_rtc_proc_fops); + proc_create_single("driver/rtc", 0, NULL, hp_sdc_rtc_proc_show); printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded " "(RTC v " RTC_VERSION ")\n"); diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index df171cb85822..5b714a062fa7 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -146,6 +146,7 @@ config INTEL_IOMMU select DMA_DIRECT_OPS select IOMMU_API select IOMMU_IOVA + select NEED_DMA_MAP_STATE select DMAR_TABLE help DMA remapping (DMAR) devices support enables independent address diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 5ed465ab1c76..15f268f646bf 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -27,7 +27,7 @@ obj-$(CONFIG_ARM_GIC) += irq-gic.o irq-gic-common.o obj-$(CONFIG_ARM_GIC_PM) += irq-gic-pm.o obj-$(CONFIG_ARCH_REALVIEW) += irq-gic-realview.o obj-$(CONFIG_ARM_GIC_V2M) += irq-gic-v2m.o -obj-$(CONFIG_ARM_GIC_V3) += irq-gic-v3.o irq-gic-common.o +obj-$(CONFIG_ARM_GIC_V3) += irq-gic-v3.o irq-gic-v3-mbi.o irq-gic-common.o obj-$(CONFIG_ARM_GIC_V3_ITS) += irq-gic-v3-its.o irq-gic-v3-its-platform-msi.o irq-gic-v4.o obj-$(CONFIG_ARM_GIC_V3_ITS_PCI) += irq-gic-v3-its-pci-msi.o obj-$(CONFIG_ARM_GIC_V3_ITS_FSL_MC) += irq-gic-v3-its-fsl-mc-msi.o diff --git a/drivers/irqchip/irq-gic-v3-mbi.c b/drivers/irqchip/irq-gic-v3-mbi.c new file mode 100644 index 000000000000..ad70e7c416e3 --- /dev/null +++ b/drivers/irqchip/irq-gic-v3-mbi.c @@ -0,0 +1,331 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 ARM Limited, All Rights Reserved. + * Author: Marc Zyngier <marc.zyngier@arm.com> + */ + +#define pr_fmt(fmt) "GICv3: " fmt + +#include <linux/dma-iommu.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/kernel.h> +#include <linux/msi.h> +#include <linux/of_address.h> +#include <linux/of_pci.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +#include <linux/irqchip/arm-gic-v3.h> + +struct mbi_range { + u32 spi_start; + u32 nr_spis; + unsigned long *bm; +}; + +static struct mutex mbi_lock; +static phys_addr_t mbi_phys_base; +static struct mbi_range *mbi_ranges; +static unsigned int mbi_range_nr; + +static struct irq_chip mbi_irq_chip = { + .name = "MBI", + .irq_mask = irq_chip_mask_parent, + .irq_unmask = irq_chip_unmask_parent, + .irq_eoi = irq_chip_eoi_parent, + .irq_set_type = irq_chip_set_type_parent, + .irq_set_affinity = irq_chip_set_affinity_parent, +}; + +static int mbi_irq_gic_domain_alloc(struct irq_domain *domain, + unsigned int virq, + irq_hw_number_t hwirq) +{ + struct irq_fwspec fwspec; + struct irq_data *d; + int err; + + /* + * Using ACPI? There is no MBI support in the spec, you + * shouldn't even be here. + */ + if (!is_of_node(domain->parent->fwnode)) + return -EINVAL; + + /* + * Let's default to edge. This is consistent with traditional + * MSIs, and systems requiring level signaling will just + * enforce the trigger on their own. + */ + fwspec.fwnode = domain->parent->fwnode; + fwspec.param_count = 3; + fwspec.param[0] = 0; + fwspec.param[1] = hwirq - 32; + fwspec.param[2] = IRQ_TYPE_EDGE_RISING; + + err = irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec); + if (err) + return err; + + d = irq_domain_get_irq_data(domain->parent, virq); + return d->chip->irq_set_type(d, IRQ_TYPE_EDGE_RISING); +} + +static void mbi_free_msi(struct mbi_range *mbi, unsigned int hwirq, + int nr_irqs) +{ + mutex_lock(&mbi_lock); + bitmap_release_region(mbi->bm, hwirq - mbi->spi_start, + get_count_order(nr_irqs)); + mutex_unlock(&mbi_lock); +} + +static int mbi_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs, void *args) +{ + struct mbi_range *mbi = NULL; + int hwirq, offset, i, err = 0; + + mutex_lock(&mbi_lock); + for (i = 0; i < mbi_range_nr; i++) { + offset = bitmap_find_free_region(mbi_ranges[i].bm, + mbi_ranges[i].nr_spis, + get_count_order(nr_irqs)); + if (offset >= 0) { + mbi = &mbi_ranges[i]; + break; + } + } + mutex_unlock(&mbi_lock); + + if (!mbi) + return -ENOSPC; + + hwirq = mbi->spi_start + offset; + + for (i = 0; i < nr_irqs; i++) { + err = mbi_irq_gic_domain_alloc(domain, virq + i, hwirq + i); + if (err) + goto fail; + + irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i, + &mbi_irq_chip, mbi); + } + + return 0; + +fail: + irq_domain_free_irqs_parent(domain, virq, nr_irqs); + mbi_free_msi(mbi, hwirq, nr_irqs); + return err; +} + +static void mbi_irq_domain_free(struct irq_domain *domain, + unsigned int virq, unsigned int nr_irqs) +{ + struct irq_data *d = irq_domain_get_irq_data(domain, virq); + struct mbi_range *mbi = irq_data_get_irq_chip_data(d); + + mbi_free_msi(mbi, d->hwirq, nr_irqs); + irq_domain_free_irqs_parent(domain, virq, nr_irqs); +} + +static const struct irq_domain_ops mbi_domain_ops = { + .alloc = mbi_irq_domain_alloc, + .free = mbi_irq_domain_free, +}; + +static void mbi_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) +{ + msg[0].address_hi = upper_32_bits(mbi_phys_base + GICD_SETSPI_NSR); + msg[0].address_lo = lower_32_bits(mbi_phys_base + GICD_SETSPI_NSR); + msg[0].data = data->parent_data->hwirq; + + iommu_dma_map_msi_msg(data->irq, msg); +} + +#ifdef CONFIG_PCI_MSI +/* PCI-specific irqchip */ +static void mbi_mask_msi_irq(struct irq_data *d) +{ + pci_msi_mask_irq(d); + irq_chip_mask_parent(d); +} + +static void mbi_unmask_msi_irq(struct irq_data *d) +{ + pci_msi_unmask_irq(d); + irq_chip_unmask_parent(d); +} + +static struct irq_chip mbi_msi_irq_chip = { + .name = "MSI", + .irq_mask = mbi_mask_msi_irq, + .irq_unmask = mbi_unmask_msi_irq, + .irq_eoi = irq_chip_eoi_parent, + .irq_compose_msi_msg = mbi_compose_msi_msg, + .irq_write_msi_msg = pci_msi_domain_write_msg, +}; + +static struct msi_domain_info mbi_msi_domain_info = { + .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | + MSI_FLAG_PCI_MSIX | MSI_FLAG_MULTI_PCI_MSI), + .chip = &mbi_msi_irq_chip, +}; + +static int mbi_allocate_pci_domain(struct irq_domain *nexus_domain, + struct irq_domain **pci_domain) +{ + *pci_domain = pci_msi_create_irq_domain(nexus_domain->parent->fwnode, + &mbi_msi_domain_info, + nexus_domain); + if (!*pci_domain) + return -ENOMEM; + + return 0; +} +#else +static int mbi_allocate_pci_domain(struct irq_domain *nexus_domain, + struct irq_domain **pci_domain) +{ + *pci_domain = NULL; + return 0; +} +#endif + +static void mbi_compose_mbi_msg(struct irq_data *data, struct msi_msg *msg) +{ + mbi_compose_msi_msg(data, msg); + + msg[1].address_hi = upper_32_bits(mbi_phys_base + GICD_CLRSPI_NSR); + msg[1].address_lo = lower_32_bits(mbi_phys_base + GICD_CLRSPI_NSR); + msg[1].data = data->parent_data->hwirq; + + iommu_dma_map_msi_msg(data->irq, &msg[1]); +} + +/* Platform-MSI specific irqchip */ +static struct irq_chip mbi_pmsi_irq_chip = { + .name = "pMSI", + .irq_set_type = irq_chip_set_type_parent, + .irq_compose_msi_msg = mbi_compose_mbi_msg, + .flags = IRQCHIP_SUPPORTS_LEVEL_MSI, +}; + +static struct msi_domain_ops mbi_pmsi_ops = { +}; + +static struct msi_domain_info mbi_pmsi_domain_info = { + .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | + MSI_FLAG_LEVEL_CAPABLE), + .ops = &mbi_pmsi_ops, + .chip = &mbi_pmsi_irq_chip, +}; + +static int mbi_allocate_domains(struct irq_domain *parent) +{ + struct irq_domain *nexus_domain, *pci_domain, *plat_domain; + int err; + + nexus_domain = irq_domain_create_tree(parent->fwnode, + &mbi_domain_ops, NULL); + if (!nexus_domain) + return -ENOMEM; + + irq_domain_update_bus_token(nexus_domain, DOMAIN_BUS_NEXUS); + nexus_domain->parent = parent; + + err = mbi_allocate_pci_domain(nexus_domain, &pci_domain); + + plat_domain = platform_msi_create_irq_domain(parent->fwnode, + &mbi_pmsi_domain_info, + nexus_domain); + + if (err || !plat_domain) { + if (plat_domain) + irq_domain_remove(plat_domain); + if (pci_domain) + irq_domain_remove(pci_domain); + irq_domain_remove(nexus_domain); + return -ENOMEM; + } + + return 0; +} + +int __init mbi_init(struct fwnode_handle *fwnode, struct irq_domain *parent) +{ + struct device_node *np; + const __be32 *reg; + int ret, n; + + np = to_of_node(fwnode); + + if (!of_property_read_bool(np, "msi-controller")) + return 0; + + n = of_property_count_elems_of_size(np, "mbi-ranges", sizeof(u32)); + if (n <= 0 || n % 2) + return -EINVAL; + + mbi_range_nr = n / 2; + mbi_ranges = kcalloc(mbi_range_nr, sizeof(*mbi_ranges), GFP_KERNEL); + if (!mbi_ranges) + return -ENOMEM; + + for (n = 0; n < mbi_range_nr; n++) { + ret = of_property_read_u32_index(np, "mbi-ranges", n * 2, + &mbi_ranges[n].spi_start); + if (ret) + goto err_free_mbi; + ret = of_property_read_u32_index(np, "mbi-ranges", n * 2 + 1, + &mbi_ranges[n].nr_spis); + if (ret) + goto err_free_mbi; + + mbi_ranges[n].bm = kcalloc(BITS_TO_LONGS(mbi_ranges[n].nr_spis), + sizeof(long), GFP_KERNEL); + if (!mbi_ranges[n].bm) { + ret = -ENOMEM; + goto err_free_mbi; + } + pr_info("MBI range [%d:%d]\n", mbi_ranges[n].spi_start, + mbi_ranges[n].spi_start + mbi_ranges[n].nr_spis - 1); + } + + reg = of_get_property(np, "mbi-alias", NULL); + if (reg) { + mbi_phys_base = of_translate_address(np, reg); + if (mbi_phys_base == OF_BAD_ADDR) { + ret = -ENXIO; + goto err_free_mbi; + } + } else { + struct resource res; + + if (of_address_to_resource(np, 0, &res)) { + ret = -ENXIO; + goto err_free_mbi; + } + + mbi_phys_base = res.start; + } + + pr_info("Using MBI frame %pa\n", &mbi_phys_base); + + ret = mbi_allocate_domains(parent); + if (ret) + goto err_free_mbi; + + return 0; + +err_free_mbi: + if (mbi_ranges) { + for (n = 0; n < mbi_range_nr; n++) + kfree(mbi_ranges[n].bm); + kfree(mbi_ranges); + } + + return ret; +} diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index e5d101418390..5a67ec084588 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1099,6 +1099,7 @@ static int __init gic_init_bases(void __iomem *dist_base, gic_data.domain = irq_domain_create_tree(handle, &gic_irq_domain_ops, &gic_data); + irq_domain_update_bus_token(gic_data.domain, DOMAIN_BUS_WIRED); gic_data.rdists.rdist = alloc_percpu(typeof(*gic_data.rdists.rdist)); gic_data.rdists.has_vlpis = true; gic_data.rdists.has_direct_lpi = true; @@ -1112,6 +1113,12 @@ static int __init gic_init_bases(void __iomem *dist_base, pr_info("Distributor has %sRange Selector support\n", gic_data.has_rss ? "" : "no "); + if (typer & GICD_TYPER_MBIS) { + err = mbi_init(handle, gic_data.domain); + if (err) + pr_err("Failed to initialize MBIs\n"); + } + set_handle_irq(gic_handle_irq); gic_update_vlpi_properties(); diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c index a59bdbc0b9bb..7b531fd075b8 100644 --- a/drivers/irqchip/irq-meson-gpio.c +++ b/drivers/irqchip/irq-meson-gpio.c @@ -63,11 +63,16 @@ static const struct meson_gpio_irq_params gxl_params = { .nr_hwirq = 110, }; +static const struct meson_gpio_irq_params axg_params = { + .nr_hwirq = 100, +}; + static const struct of_device_id meson_irq_gpio_matches[] = { { .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params }, { .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params }, { .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params }, { .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params }, + { .compatible = "amlogic,meson-axg-gpio-intc", .data = &axg_params }, { } }; diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c index 17a4a7b6cdbb..4e17f7081efc 100644 --- a/drivers/irqchip/irq-mvebu-gicp.c +++ b/drivers/irqchip/irq-mvebu-gicp.c @@ -19,8 +19,6 @@ #include <dt-bindings/interrupt-controller/arm-gic.h> -#include "irq-mvebu-gicp.h" - #define GICP_SETSPI_NSR_OFFSET 0x0 #define GICP_CLRSPI_NSR_OFFSET 0x8 @@ -55,34 +53,18 @@ static int gicp_idx_to_spi(struct mvebu_gicp *gicp, int idx) return -EINVAL; } -int mvebu_gicp_get_doorbells(struct device_node *dn, phys_addr_t *setspi, - phys_addr_t *clrspi) -{ - struct platform_device *pdev; - struct mvebu_gicp *gicp; - - pdev = of_find_device_by_node(dn); - if (!pdev) - return -ENODEV; - - gicp = platform_get_drvdata(pdev); - if (!gicp) - return -ENODEV; - - *setspi = gicp->res->start + GICP_SETSPI_NSR_OFFSET; - *clrspi = gicp->res->start + GICP_CLRSPI_NSR_OFFSET; - - return 0; -} - static void gicp_compose_msi_msg(struct irq_data *data, struct msi_msg *msg) { struct mvebu_gicp *gicp = data->chip_data; phys_addr_t setspi = gicp->res->start + GICP_SETSPI_NSR_OFFSET; - - msg->data = data->hwirq; - msg->address_lo = lower_32_bits(setspi); - msg->address_hi = upper_32_bits(setspi); + phys_addr_t clrspi = gicp->res->start + GICP_CLRSPI_NSR_OFFSET; + + msg[0].data = data->hwirq; + msg[0].address_lo = lower_32_bits(setspi); + msg[0].address_hi = upper_32_bits(setspi); + msg[1].data = data->hwirq; + msg[1].address_lo = lower_32_bits(clrspi); + msg[1].address_hi = upper_32_bits(clrspi); } static struct irq_chip gicp_irq_chip = { @@ -170,13 +152,15 @@ static const struct irq_domain_ops gicp_domain_ops = { static struct irq_chip gicp_msi_irq_chip = { .name = "GICP", .irq_set_type = irq_chip_set_type_parent, + .flags = IRQCHIP_SUPPORTS_LEVEL_MSI, }; static struct msi_domain_ops gicp_msi_ops = { }; static struct msi_domain_info gicp_msi_domain_info = { - .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS), + .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | + MSI_FLAG_LEVEL_CAPABLE), .ops = &gicp_msi_ops, .chip = &gicp_msi_irq_chip, }; diff --git a/drivers/irqchip/irq-mvebu-gicp.h b/drivers/irqchip/irq-mvebu-gicp.h deleted file mode 100644 index eaa12fb72102..000000000000 --- a/drivers/irqchip/irq-mvebu-gicp.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __MVEBU_GICP_H__ -#define __MVEBU_GICP_H__ - -#include <linux/types.h> - -struct device_node; - -int mvebu_gicp_get_doorbells(struct device_node *dn, phys_addr_t *setspi, - phys_addr_t *clrspi); - -#endif /* __MVEBU_GICP_H__ */ diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c index e18c48d3a92e..13063339b416 100644 --- a/drivers/irqchip/irq-mvebu-icu.c +++ b/drivers/irqchip/irq-mvebu-icu.c @@ -21,8 +21,6 @@ #include <dt-bindings/interrupt-controller/mvebu-icu.h> -#include "irq-mvebu-gicp.h" - /* ICU registers */ #define ICU_SETSPI_NSR_AL 0x10 #define ICU_SETSPI_NSR_AH 0x14 @@ -43,6 +41,7 @@ struct mvebu_icu { void __iomem *base; struct irq_domain *domain; struct device *dev; + atomic_t initialized; }; struct mvebu_icu_irq_data { @@ -51,6 +50,18 @@ struct mvebu_icu_irq_data { unsigned int type; }; +static void mvebu_icu_init(struct mvebu_icu *icu, struct msi_msg *msg) +{ + if (atomic_cmpxchg(&icu->initialized, false, true)) + return; + + /* Set Clear/Set ICU SPI message address in AP */ + writel_relaxed(msg[0].address_hi, icu->base + ICU_SETSPI_NSR_AH); + writel_relaxed(msg[0].address_lo, icu->base + ICU_SETSPI_NSR_AL); + writel_relaxed(msg[1].address_hi, icu->base + ICU_CLRSPI_NSR_AH); + writel_relaxed(msg[1].address_lo, icu->base + ICU_CLRSPI_NSR_AL); +} + static void mvebu_icu_write_msg(struct msi_desc *desc, struct msi_msg *msg) { struct irq_data *d = irq_get_irq_data(desc->irq); @@ -59,6 +70,8 @@ static void mvebu_icu_write_msg(struct msi_desc *desc, struct msi_msg *msg) unsigned int icu_int; if (msg->address_lo || msg->address_hi) { + /* One off initialization */ + mvebu_icu_init(icu, msg); /* Configure the ICU with irq number & type */ icu_int = msg->data | ICU_INT_ENABLE; if (icu_irqd->type & IRQ_TYPE_EDGE_RISING) @@ -197,9 +210,7 @@ static int mvebu_icu_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; struct device_node *gicp_dn; struct resource *res; - phys_addr_t setspi, clrspi; - u32 i, icu_int; - int ret; + int i; icu = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_icu), GFP_KERNEL); @@ -242,22 +253,12 @@ static int mvebu_icu_probe(struct platform_device *pdev) if (!gicp_dn) return -ENODEV; - ret = mvebu_gicp_get_doorbells(gicp_dn, &setspi, &clrspi); - if (ret) - return ret; - - /* Set Clear/Set ICU SPI message address in AP */ - writel_relaxed(upper_32_bits(setspi), icu->base + ICU_SETSPI_NSR_AH); - writel_relaxed(lower_32_bits(setspi), icu->base + ICU_SETSPI_NSR_AL); - writel_relaxed(upper_32_bits(clrspi), icu->base + ICU_CLRSPI_NSR_AH); - writel_relaxed(lower_32_bits(clrspi), icu->base + ICU_CLRSPI_NSR_AL); - /* * Clean all ICU interrupts with type SPI_NSR, required to * avoid unpredictable SPI assignments done by firmware. */ for (i = 0 ; i < ICU_MAX_IRQS ; i++) { - icu_int = readl(icu->base + ICU_INT_CFG(i)); + u32 icu_int = readl_relaxed(icu->base + ICU_INT_CFG(i)); if ((icu_int >> ICU_GROUP_SHIFT) == ICU_GRP_NSR) writel_relaxed(0x0, icu->base + ICU_INT_CFG(i)); } diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 36f0fbe36c35..5089c1e2838d 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -14,6 +14,9 @@ #include <linux/irqdomain.h> #include <linux/of_address.h> #include <linux/of_irq.h> +#include <linux/syscore_ops.h> + +#include <dt-bindings/interrupt-controller/arm-gic.h> #define IRQS_PER_BANK 32 @@ -23,29 +26,69 @@ struct stm32_exti_bank { u32 rtsr_ofst; u32 ftsr_ofst; u32 swier_ofst; - u32 pr_ofst; + u32 rpr_ofst; + u32 fpr_ofst; +}; + +#define UNDEF_REG ~0 + +struct stm32_desc_irq { + u32 exti; + u32 irq_parent; +}; + +struct stm32_exti_drv_data { + const struct stm32_exti_bank **exti_banks; + const struct stm32_desc_irq *desc_irqs; + u32 bank_nr; + u32 irq_nr; +}; + +struct stm32_exti_chip_data { + struct stm32_exti_host_data *host_data; + const struct stm32_exti_bank *reg_bank; + struct raw_spinlock rlock; + u32 wake_active; + u32 mask_cache; + u32 rtsr_cache; + u32 ftsr_cache; }; +struct stm32_exti_host_data { + void __iomem *base; + struct stm32_exti_chip_data *chips_data; + const struct stm32_exti_drv_data *drv_data; +}; + +static struct stm32_exti_host_data *stm32_host_data; + static const struct stm32_exti_bank stm32f4xx_exti_b1 = { .imr_ofst = 0x00, .emr_ofst = 0x04, .rtsr_ofst = 0x08, .ftsr_ofst = 0x0C, .swier_ofst = 0x10, - .pr_ofst = 0x14, + .rpr_ofst = 0x14, + .fpr_ofst = UNDEF_REG, }; static const struct stm32_exti_bank *stm32f4xx_exti_banks[] = { &stm32f4xx_exti_b1, }; +static const struct stm32_exti_drv_data stm32f4xx_drv_data = { + .exti_banks = stm32f4xx_exti_banks, + .bank_nr = ARRAY_SIZE(stm32f4xx_exti_banks), +}; + static const struct stm32_exti_bank stm32h7xx_exti_b1 = { .imr_ofst = 0x80, .emr_ofst = 0x84, .rtsr_ofst = 0x00, .ftsr_ofst = 0x04, .swier_ofst = 0x08, - .pr_ofst = 0x88, + .rpr_ofst = 0x88, + .fpr_ofst = UNDEF_REG, }; static const struct stm32_exti_bank stm32h7xx_exti_b2 = { @@ -54,7 +97,8 @@ static const struct stm32_exti_bank stm32h7xx_exti_b2 = { .rtsr_ofst = 0x20, .ftsr_ofst = 0x24, .swier_ofst = 0x28, - .pr_ofst = 0x98, + .rpr_ofst = 0x98, + .fpr_ofst = UNDEF_REG, }; static const struct stm32_exti_bank stm32h7xx_exti_b3 = { @@ -63,7 +107,8 @@ static const struct stm32_exti_bank stm32h7xx_exti_b3 = { .rtsr_ofst = 0x40, .ftsr_ofst = 0x44, .swier_ofst = 0x48, - .pr_ofst = 0xA8, + .rpr_ofst = 0xA8, + .fpr_ofst = UNDEF_REG, }; static const struct stm32_exti_bank *stm32h7xx_exti_banks[] = { @@ -72,18 +117,105 @@ static const struct stm32_exti_bank *stm32h7xx_exti_banks[] = { &stm32h7xx_exti_b3, }; -static unsigned long stm32_exti_pending(struct irq_chip_generic *gc) +static const struct stm32_exti_drv_data stm32h7xx_drv_data = { + .exti_banks = stm32h7xx_exti_banks, + .bank_nr = ARRAY_SIZE(stm32h7xx_exti_banks), +}; + +static const struct stm32_exti_bank stm32mp1_exti_b1 = { + .imr_ofst = 0x80, + .emr_ofst = 0x84, + .rtsr_ofst = 0x00, + .ftsr_ofst = 0x04, + .swier_ofst = 0x08, + .rpr_ofst = 0x0C, + .fpr_ofst = 0x10, +}; + +static const struct stm32_exti_bank stm32mp1_exti_b2 = { + .imr_ofst = 0x90, + .emr_ofst = 0x94, + .rtsr_ofst = 0x20, + .ftsr_ofst = 0x24, + .swier_ofst = 0x28, + .rpr_ofst = 0x2C, + .fpr_ofst = 0x30, +}; + +static const struct stm32_exti_bank stm32mp1_exti_b3 = { + .imr_ofst = 0xA0, + .emr_ofst = 0xA4, + .rtsr_ofst = 0x40, + .ftsr_ofst = 0x44, + .swier_ofst = 0x48, + .rpr_ofst = 0x4C, + .fpr_ofst = 0x50, +}; + +static const struct stm32_exti_bank *stm32mp1_exti_banks[] = { + &stm32mp1_exti_b1, + &stm32mp1_exti_b2, + &stm32mp1_exti_b3, +}; + +static const struct stm32_desc_irq stm32mp1_desc_irq[] = { + { .exti = 1, .irq_parent = 7 }, + { .exti = 2, .irq_parent = 8 }, + { .exti = 3, .irq_parent = 9 }, + { .exti = 4, .irq_parent = 10 }, + { .exti = 5, .irq_parent = 23 }, + { .exti = 6, .irq_parent = 64 }, + { .exti = 7, .irq_parent = 65 }, + { .exti = 8, .irq_parent = 66 }, + { .exti = 9, .irq_parent = 67 }, + { .exti = 10, .irq_parent = 40 }, + { .exti = 11, .irq_parent = 42 }, + { .exti = 12, .irq_parent = 76 }, + { .exti = 13, .irq_parent = 77 }, + { .exti = 14, .irq_parent = 121 }, + { .exti = 15, .irq_parent = 127 }, + { .exti = 16, .irq_parent = 1 }, + { .exti = 65, .irq_parent = 144 }, + { .exti = 68, .irq_parent = 143 }, + { .exti = 73, .irq_parent = 129 }, +}; + +static const struct stm32_exti_drv_data stm32mp1_drv_data = { + .exti_banks = stm32mp1_exti_banks, + .bank_nr = ARRAY_SIZE(stm32mp1_exti_banks), + .desc_irqs = stm32mp1_desc_irq, + .irq_nr = ARRAY_SIZE(stm32mp1_desc_irq), +}; + +static int stm32_exti_to_irq(const struct stm32_exti_drv_data *drv_data, + irq_hw_number_t hwirq) { - const struct stm32_exti_bank *stm32_bank = gc->private; + const struct stm32_desc_irq *desc_irq; + int i; - return irq_reg_readl(gc, stm32_bank->pr_ofst); + if (!drv_data->desc_irqs) + return -EINVAL; + + for (i = 0; i < drv_data->irq_nr; i++) { + desc_irq = &drv_data->desc_irqs[i]; + if (desc_irq->exti == hwirq) + return desc_irq->irq_parent; + } + + return -EINVAL; } -static void stm32_exti_irq_ack(struct irq_chip_generic *gc, u32 mask) +static unsigned long stm32_exti_pending(struct irq_chip_generic *gc) { - const struct stm32_exti_bank *stm32_bank = gc->private; + struct stm32_exti_chip_data *chip_data = gc->private; + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + unsigned long pending; + + pending = irq_reg_readl(gc, stm32_bank->rpr_ofst); + if (stm32_bank->fpr_ofst != UNDEF_REG) + pending |= irq_reg_readl(gc, stm32_bank->fpr_ofst); - irq_reg_writel(gc, mask, stm32_bank->pr_ofst); + return pending; } static void stm32_irq_handler(struct irq_desc *desc) @@ -92,7 +224,6 @@ static void stm32_irq_handler(struct irq_desc *desc) struct irq_chip *chip = irq_desc_get_chip(desc); unsigned int virq, nbanks = domain->gc->num_chips; struct irq_chip_generic *gc; - const struct stm32_exti_bank *stm32_bank; unsigned long pending; int n, i, irq_base = 0; @@ -100,13 +231,11 @@ static void stm32_irq_handler(struct irq_desc *desc) for (i = 0; i < nbanks; i++, irq_base += IRQS_PER_BANK) { gc = irq_get_domain_generic_chip(domain, irq_base); - stm32_bank = gc->private; while ((pending = stm32_exti_pending(gc))) { for_each_set_bit(n, &pending, IRQS_PER_BANK) { virq = irq_find_mapping(domain, irq_base + n); generic_handle_irq(virq); - stm32_exti_irq_ack(gc, BIT(n)); } } } @@ -114,36 +243,50 @@ static void stm32_irq_handler(struct irq_desc *desc) chained_irq_exit(chip, desc); } -static int stm32_irq_set_type(struct irq_data *data, unsigned int type) +static int stm32_exti_set_type(struct irq_data *d, + unsigned int type, u32 *rtsr, u32 *ftsr) { - struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data); - const struct stm32_exti_bank *stm32_bank = gc->private; - int pin = data->hwirq % IRQS_PER_BANK; - u32 rtsr, ftsr; - - irq_gc_lock(gc); - - rtsr = irq_reg_readl(gc, stm32_bank->rtsr_ofst); - ftsr = irq_reg_readl(gc, stm32_bank->ftsr_ofst); + u32 mask = BIT(d->hwirq % IRQS_PER_BANK); switch (type) { case IRQ_TYPE_EDGE_RISING: - rtsr |= BIT(pin); - ftsr &= ~BIT(pin); + *rtsr |= mask; + *ftsr &= ~mask; break; case IRQ_TYPE_EDGE_FALLING: - rtsr &= ~BIT(pin); - ftsr |= BIT(pin); + *rtsr &= ~mask; + *ftsr |= mask; break; case IRQ_TYPE_EDGE_BOTH: - rtsr |= BIT(pin); - ftsr |= BIT(pin); + *rtsr |= mask; + *ftsr |= mask; break; default: - irq_gc_unlock(gc); return -EINVAL; } + return 0; +} + +static int stm32_irq_set_type(struct irq_data *d, unsigned int type) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct stm32_exti_chip_data *chip_data = gc->private; + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + u32 rtsr, ftsr; + int err; + + irq_gc_lock(gc); + + rtsr = irq_reg_readl(gc, stm32_bank->rtsr_ofst); + ftsr = irq_reg_readl(gc, stm32_bank->ftsr_ofst); + + err = stm32_exti_set_type(d, type, &rtsr, &ftsr); + if (err) { + irq_gc_unlock(gc); + return err; + } + irq_reg_writel(gc, rtsr, stm32_bank->rtsr_ofst); irq_reg_writel(gc, ftsr, stm32_bank->ftsr_ofst); @@ -152,40 +295,59 @@ static int stm32_irq_set_type(struct irq_data *data, unsigned int type) return 0; } -static int stm32_irq_set_wake(struct irq_data *data, unsigned int on) +static void stm32_chip_suspend(struct stm32_exti_chip_data *chip_data, + u32 wake_active) { - struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data); - const struct stm32_exti_bank *stm32_bank = gc->private; - int pin = data->hwirq % IRQS_PER_BANK; - u32 imr; + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + void __iomem *base = chip_data->host_data->base; - irq_gc_lock(gc); + /* save rtsr, ftsr registers */ + chip_data->rtsr_cache = readl_relaxed(base + stm32_bank->rtsr_ofst); + chip_data->ftsr_cache = readl_relaxed(base + stm32_bank->ftsr_ofst); - imr = irq_reg_readl(gc, stm32_bank->imr_ofst); - if (on) - imr |= BIT(pin); - else - imr &= ~BIT(pin); - irq_reg_writel(gc, imr, stm32_bank->imr_ofst); + writel_relaxed(wake_active, base + stm32_bank->imr_ofst); +} + +static void stm32_chip_resume(struct stm32_exti_chip_data *chip_data, + u32 mask_cache) +{ + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + void __iomem *base = chip_data->host_data->base; + + /* restore rtsr, ftsr, registers */ + writel_relaxed(chip_data->rtsr_cache, base + stm32_bank->rtsr_ofst); + writel_relaxed(chip_data->ftsr_cache, base + stm32_bank->ftsr_ofst); + writel_relaxed(mask_cache, base + stm32_bank->imr_ofst); +} + +static void stm32_irq_suspend(struct irq_chip_generic *gc) +{ + struct stm32_exti_chip_data *chip_data = gc->private; + + irq_gc_lock(gc); + stm32_chip_suspend(chip_data, gc->wake_active); irq_gc_unlock(gc); +} - return 0; +static void stm32_irq_resume(struct irq_chip_generic *gc) +{ + struct stm32_exti_chip_data *chip_data = gc->private; + + irq_gc_lock(gc); + stm32_chip_resume(chip_data, gc->mask_cache); + irq_gc_unlock(gc); } static int stm32_exti_alloc(struct irq_domain *d, unsigned int virq, unsigned int nr_irqs, void *data) { - struct irq_chip_generic *gc; struct irq_fwspec *fwspec = data; irq_hw_number_t hwirq; hwirq = fwspec->param[0]; - gc = irq_get_domain_generic_chip(d, hwirq); irq_map_generic_chip(d, virq, hwirq); - irq_domain_set_info(d, virq, hwirq, &gc->chip_types->chip, gc, - handle_simple_irq, NULL, NULL); return 0; } @@ -198,30 +360,318 @@ static void stm32_exti_free(struct irq_domain *d, unsigned int virq, irq_domain_reset_irq_data(data); } -struct irq_domain_ops irq_exti_domain_ops = { +static const struct irq_domain_ops irq_exti_domain_ops = { .map = irq_map_generic_chip, - .xlate = irq_domain_xlate_onetwocell, .alloc = stm32_exti_alloc, .free = stm32_exti_free, }; -static int -__init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks, - int bank_nr, struct device_node *node) +static void stm32_irq_ack(struct irq_data *d) +{ + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct stm32_exti_chip_data *chip_data = gc->private; + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + + irq_gc_lock(gc); + + irq_reg_writel(gc, d->mask, stm32_bank->rpr_ofst); + if (stm32_bank->fpr_ofst != UNDEF_REG) + irq_reg_writel(gc, d->mask, stm32_bank->fpr_ofst); + + irq_gc_unlock(gc); +} + +static inline u32 stm32_exti_set_bit(struct irq_data *d, u32 reg) { + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + void __iomem *base = chip_data->host_data->base; + u32 val; + + val = readl_relaxed(base + reg); + val |= BIT(d->hwirq % IRQS_PER_BANK); + writel_relaxed(val, base + reg); + + return val; +} + +static inline u32 stm32_exti_clr_bit(struct irq_data *d, u32 reg) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + void __iomem *base = chip_data->host_data->base; + u32 val; + + val = readl_relaxed(base + reg); + val &= ~BIT(d->hwirq % IRQS_PER_BANK); + writel_relaxed(val, base + reg); + + return val; +} + +static void stm32_exti_h_eoi(struct irq_data *d) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + + raw_spin_lock(&chip_data->rlock); + + stm32_exti_set_bit(d, stm32_bank->rpr_ofst); + if (stm32_bank->fpr_ofst != UNDEF_REG) + stm32_exti_set_bit(d, stm32_bank->fpr_ofst); + + raw_spin_unlock(&chip_data->rlock); + + if (d->parent_data->chip) + irq_chip_eoi_parent(d); +} + +static void stm32_exti_h_mask(struct irq_data *d) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + + raw_spin_lock(&chip_data->rlock); + chip_data->mask_cache = stm32_exti_clr_bit(d, stm32_bank->imr_ofst); + raw_spin_unlock(&chip_data->rlock); + + if (d->parent_data->chip) + irq_chip_mask_parent(d); +} + +static void stm32_exti_h_unmask(struct irq_data *d) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + + raw_spin_lock(&chip_data->rlock); + chip_data->mask_cache = stm32_exti_set_bit(d, stm32_bank->imr_ofst); + raw_spin_unlock(&chip_data->rlock); + + if (d->parent_data->chip) + irq_chip_unmask_parent(d); +} + +static int stm32_exti_h_set_type(struct irq_data *d, unsigned int type) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + const struct stm32_exti_bank *stm32_bank = chip_data->reg_bank; + void __iomem *base = chip_data->host_data->base; + u32 rtsr, ftsr; + int err; + + raw_spin_lock(&chip_data->rlock); + rtsr = readl_relaxed(base + stm32_bank->rtsr_ofst); + ftsr = readl_relaxed(base + stm32_bank->ftsr_ofst); + + err = stm32_exti_set_type(d, type, &rtsr, &ftsr); + if (err) { + raw_spin_unlock(&chip_data->rlock); + return err; + } + + writel_relaxed(rtsr, base + stm32_bank->rtsr_ofst); + writel_relaxed(ftsr, base + stm32_bank->ftsr_ofst); + raw_spin_unlock(&chip_data->rlock); + + return 0; +} + +static int stm32_exti_h_set_wake(struct irq_data *d, unsigned int on) +{ + struct stm32_exti_chip_data *chip_data = irq_data_get_irq_chip_data(d); + u32 mask = BIT(d->hwirq % IRQS_PER_BANK); + + raw_spin_lock(&chip_data->rlock); + + if (on) + chip_data->wake_active |= mask; + else + chip_data->wake_active &= ~mask; + + raw_spin_unlock(&chip_data->rlock); + + return 0; +} + +static int stm32_exti_h_set_affinity(struct irq_data *d, + const struct cpumask *dest, bool force) +{ + if (d->parent_data->chip) + return irq_chip_set_affinity_parent(d, dest, force); + + return -EINVAL; +} + +#ifdef CONFIG_PM +static int stm32_exti_h_suspend(void) +{ + struct stm32_exti_chip_data *chip_data; + int i; + + for (i = 0; i < stm32_host_data->drv_data->bank_nr; i++) { + chip_data = &stm32_host_data->chips_data[i]; + raw_spin_lock(&chip_data->rlock); + stm32_chip_suspend(chip_data, chip_data->wake_active); + raw_spin_unlock(&chip_data->rlock); + } + + return 0; +} + +static void stm32_exti_h_resume(void) +{ + struct stm32_exti_chip_data *chip_data; + int i; + + for (i = 0; i < stm32_host_data->drv_data->bank_nr; i++) { + chip_data = &stm32_host_data->chips_data[i]; + raw_spin_lock(&chip_data->rlock); + stm32_chip_resume(chip_data, chip_data->mask_cache); + raw_spin_unlock(&chip_data->rlock); + } +} + +static struct syscore_ops stm32_exti_h_syscore_ops = { + .suspend = stm32_exti_h_suspend, + .resume = stm32_exti_h_resume, +}; + +static void stm32_exti_h_syscore_init(void) +{ + register_syscore_ops(&stm32_exti_h_syscore_ops); +} +#else +static inline void stm32_exti_h_syscore_init(void) {} +#endif + +static struct irq_chip stm32_exti_h_chip = { + .name = "stm32-exti-h", + .irq_eoi = stm32_exti_h_eoi, + .irq_mask = stm32_exti_h_mask, + .irq_unmask = stm32_exti_h_unmask, + .irq_retrigger = irq_chip_retrigger_hierarchy, + .irq_set_type = stm32_exti_h_set_type, + .irq_set_wake = stm32_exti_h_set_wake, + .flags = IRQCHIP_MASK_ON_SUSPEND, +#ifdef CONFIG_SMP + .irq_set_affinity = stm32_exti_h_set_affinity, +#endif +}; + +static int stm32_exti_h_domain_alloc(struct irq_domain *dm, + unsigned int virq, + unsigned int nr_irqs, void *data) +{ + struct stm32_exti_host_data *host_data = dm->host_data; + struct stm32_exti_chip_data *chip_data; + struct irq_fwspec *fwspec = data; + struct irq_fwspec p_fwspec; + irq_hw_number_t hwirq; + int p_irq, bank; + + hwirq = fwspec->param[0]; + bank = hwirq / IRQS_PER_BANK; + chip_data = &host_data->chips_data[bank]; + + irq_domain_set_hwirq_and_chip(dm, virq, hwirq, + &stm32_exti_h_chip, chip_data); + + p_irq = stm32_exti_to_irq(host_data->drv_data, hwirq); + if (p_irq >= 0) { + p_fwspec.fwnode = dm->parent->fwnode; + p_fwspec.param_count = 3; + p_fwspec.param[0] = GIC_SPI; + p_fwspec.param[1] = p_irq; + p_fwspec.param[2] = IRQ_TYPE_LEVEL_HIGH; + + return irq_domain_alloc_irqs_parent(dm, virq, 1, &p_fwspec); + } + + return 0; +} + +static struct +stm32_exti_host_data *stm32_exti_host_init(const struct stm32_exti_drv_data *dd, + struct device_node *node) +{ + struct stm32_exti_host_data *host_data; + + host_data = kzalloc(sizeof(*host_data), GFP_KERNEL); + if (!host_data) + return NULL; + + host_data->drv_data = dd; + host_data->chips_data = kcalloc(dd->bank_nr, + sizeof(struct stm32_exti_chip_data), + GFP_KERNEL); + if (!host_data->chips_data) + return NULL; + + host_data->base = of_iomap(node, 0); + if (!host_data->base) { + pr_err("%pOF: Unable to map registers\n", node); + return NULL; + } + + stm32_host_data = host_data; + + return host_data; +} + +static struct +stm32_exti_chip_data *stm32_exti_chip_init(struct stm32_exti_host_data *h_data, + u32 bank_idx, + struct device_node *node) +{ + const struct stm32_exti_bank *stm32_bank; + struct stm32_exti_chip_data *chip_data; + void __iomem *base = h_data->base; + u32 irqs_mask; + + stm32_bank = h_data->drv_data->exti_banks[bank_idx]; + chip_data = &h_data->chips_data[bank_idx]; + chip_data->host_data = h_data; + chip_data->reg_bank = stm32_bank; + + raw_spin_lock_init(&chip_data->rlock); + + /* Determine number of irqs supported */ + writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst); + irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst); + + /* + * This IP has no reset, so after hot reboot we should + * clear registers to avoid residue + */ + writel_relaxed(0, base + stm32_bank->imr_ofst); + writel_relaxed(0, base + stm32_bank->emr_ofst); + writel_relaxed(0, base + stm32_bank->rtsr_ofst); + writel_relaxed(0, base + stm32_bank->ftsr_ofst); + writel_relaxed(~0UL, base + stm32_bank->rpr_ofst); + if (stm32_bank->fpr_ofst != UNDEF_REG) + writel_relaxed(~0UL, base + stm32_bank->fpr_ofst); + + pr_info("%s: bank%d, External IRQs available:%#x\n", + node->full_name, bank_idx, irqs_mask); + + return chip_data; +} + +static int __init stm32_exti_init(const struct stm32_exti_drv_data *drv_data, + struct device_node *node) +{ + struct stm32_exti_host_data *host_data; unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; - int nr_irqs, nr_exti, ret, i; + int nr_irqs, ret, i; struct irq_chip_generic *gc; struct irq_domain *domain; - void *base; - base = of_iomap(node, 0); - if (!base) { - pr_err("%pOF: Unable to map registers\n", node); - return -ENOMEM; + host_data = stm32_exti_host_init(drv_data, node); + if (!host_data) { + ret = -ENOMEM; + goto out_free_mem; } - domain = irq_domain_add_linear(node, bank_nr * IRQS_PER_BANK, + domain = irq_domain_add_linear(node, drv_data->bank_nr * IRQS_PER_BANK, &irq_exti_domain_ops, NULL); if (!domain) { pr_err("%s: Could not register interrupt domain.\n", @@ -234,44 +684,32 @@ __init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks, handle_edge_irq, clr, 0, 0); if (ret) { pr_err("%pOF: Could not allocate generic interrupt chip.\n", - node); + node); goto out_free_domain; } - for (i = 0; i < bank_nr; i++) { - const struct stm32_exti_bank *stm32_bank = stm32_exti_banks[i]; - u32 irqs_mask; + for (i = 0; i < drv_data->bank_nr; i++) { + const struct stm32_exti_bank *stm32_bank; + struct stm32_exti_chip_data *chip_data; + + stm32_bank = drv_data->exti_banks[i]; + chip_data = stm32_exti_chip_init(host_data, i, node); gc = irq_get_domain_generic_chip(domain, i * IRQS_PER_BANK); - gc->reg_base = base; + gc->reg_base = host_data->base; gc->chip_types->type = IRQ_TYPE_EDGE_BOTH; - gc->chip_types->chip.irq_ack = irq_gc_ack_set_bit; + gc->chip_types->chip.irq_ack = stm32_irq_ack; gc->chip_types->chip.irq_mask = irq_gc_mask_clr_bit; gc->chip_types->chip.irq_unmask = irq_gc_mask_set_bit; gc->chip_types->chip.irq_set_type = stm32_irq_set_type; - gc->chip_types->chip.irq_set_wake = stm32_irq_set_wake; - gc->chip_types->regs.ack = stm32_bank->pr_ofst; + gc->chip_types->chip.irq_set_wake = irq_gc_set_wake; + gc->suspend = stm32_irq_suspend; + gc->resume = stm32_irq_resume; + gc->wake_enabled = IRQ_MSK(IRQS_PER_BANK); + gc->chip_types->regs.mask = stm32_bank->imr_ofst; - gc->private = (void *)stm32_bank; - - /* Determine number of irqs supported */ - writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst); - irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst); - nr_exti = fls(readl_relaxed(base + stm32_bank->rtsr_ofst)); - - /* - * This IP has no reset, so after hot reboot we should - * clear registers to avoid residue - */ - writel_relaxed(0, base + stm32_bank->imr_ofst); - writel_relaxed(0, base + stm32_bank->emr_ofst); - writel_relaxed(0, base + stm32_bank->rtsr_ofst); - writel_relaxed(0, base + stm32_bank->ftsr_ofst); - writel_relaxed(~0UL, base + stm32_bank->pr_ofst); - - pr_info("%s: bank%d, External IRQs available:%#x\n", - node->full_name, i, irqs_mask); + gc->private = (void *)chip_data; } nr_irqs = of_irq_count(node); @@ -287,15 +725,69 @@ __init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks, out_free_domain: irq_domain_remove(domain); out_unmap: - iounmap(base); + iounmap(host_data->base); +out_free_mem: + kfree(host_data->chips_data); + kfree(host_data); + return ret; +} + +static const struct irq_domain_ops stm32_exti_h_domain_ops = { + .alloc = stm32_exti_h_domain_alloc, + .free = irq_domain_free_irqs_common, +}; + +static int +__init stm32_exti_hierarchy_init(const struct stm32_exti_drv_data *drv_data, + struct device_node *node, + struct device_node *parent) +{ + struct irq_domain *parent_domain, *domain; + struct stm32_exti_host_data *host_data; + int ret, i; + + parent_domain = irq_find_host(parent); + if (!parent_domain) { + pr_err("interrupt-parent not found\n"); + return -EINVAL; + } + + host_data = stm32_exti_host_init(drv_data, node); + if (!host_data) { + ret = -ENOMEM; + goto out_free_mem; + } + + for (i = 0; i < drv_data->bank_nr; i++) + stm32_exti_chip_init(host_data, i, node); + + domain = irq_domain_add_hierarchy(parent_domain, 0, + drv_data->bank_nr * IRQS_PER_BANK, + node, &stm32_exti_h_domain_ops, + host_data); + + if (!domain) { + pr_err("%s: Could not register exti domain.\n", node->name); + ret = -ENOMEM; + goto out_unmap; + } + + stm32_exti_h_syscore_init(); + + return 0; + +out_unmap: + iounmap(host_data->base); +out_free_mem: + kfree(host_data->chips_data); + kfree(host_data); return ret; } static int __init stm32f4_exti_of_init(struct device_node *np, struct device_node *parent) { - return stm32_exti_init(stm32f4xx_exti_banks, - ARRAY_SIZE(stm32f4xx_exti_banks), np); + return stm32_exti_init(&stm32f4xx_drv_data, np); } IRQCHIP_DECLARE(stm32f4_exti, "st,stm32-exti", stm32f4_exti_of_init); @@ -303,8 +795,15 @@ IRQCHIP_DECLARE(stm32f4_exti, "st,stm32-exti", stm32f4_exti_of_init); static int __init stm32h7_exti_of_init(struct device_node *np, struct device_node *parent) { - return stm32_exti_init(stm32h7xx_exti_banks, - ARRAY_SIZE(stm32h7xx_exti_banks), np); + return stm32_exti_init(&stm32h7xx_drv_data, np); } IRQCHIP_DECLARE(stm32h7_exti, "st,stm32h7-exti", stm32h7_exti_of_init); + +static int __init stm32mp1_exti_of_init(struct device_node *np, + struct device_node *parent) +{ + return stm32_exti_hierarchy_init(&stm32mp1_drv_data, np, parent); +} + +IRQCHIP_DECLARE(stm32mp1_exti, "st,stm32mp1-exti", stm32mp1_exti_of_init); diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 19cd93783c87..baa1ee2bc2ac 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1340,19 +1340,6 @@ static int capi20_proc_show(struct seq_file *m, void *v) return 0; } -static int capi20_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, capi20_proc_show, NULL); -} - -static const struct file_operations capi20_proc_fops = { - .owner = THIS_MODULE, - .open = capi20_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* * /proc/capi/capi20ncci: * applid ncci @@ -1373,23 +1360,10 @@ static int capi20ncci_proc_show(struct seq_file *m, void *v) return 0; } -static int capi20ncci_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, capi20ncci_proc_show, NULL); -} - -static const struct file_operations capi20ncci_proc_fops = { - .owner = THIS_MODULE, - .open = capi20ncci_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void __init proc_init(void) { - proc_create("capi/capi20", 0, NULL, &capi20_proc_fops); - proc_create("capi/capi20ncci", 0, NULL, &capi20ncci_proc_fops); + proc_create_single("capi/capi20", 0, NULL, capi20_proc_show); + proc_create_single("capi/capi20ncci", 0, NULL, capi20ncci_proc_show); } static void __exit proc_exit(void) diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c index 49fef08858c5..7ac51798949d 100644 --- a/drivers/isdn/capi/capidrv.c +++ b/drivers/isdn/capi/capidrv.c @@ -2460,22 +2460,9 @@ static int capidrv_proc_show(struct seq_file *m, void *v) return 0; } -static int capidrv_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, capidrv_proc_show, NULL); -} - -static const struct file_operations capidrv_proc_fops = { - .owner = THIS_MODULE, - .open = capidrv_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void __init proc_init(void) { - proc_create("capi/capidrv", 0, NULL, &capidrv_proc_fops); + proc_create_single("capi/capidrv", 0, NULL, capidrv_proc_show); } static void __exit proc_exit(void) diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c index 46c189ad8d94..0ff517d3c98f 100644 --- a/drivers/isdn/capi/kcapi.c +++ b/drivers/isdn/capi/kcapi.c @@ -534,7 +534,8 @@ int attach_capi_ctr(struct capi_ctr *ctr) init_waitqueue_head(&ctr->state_wait_queue); sprintf(ctr->procfn, "capi/controllers/%d", ctr->cnr); - ctr->procent = proc_create_data(ctr->procfn, 0, NULL, ctr->proc_fops, ctr); + ctr->procent = proc_create_single_data(ctr->procfn, 0, NULL, + ctr->proc_show, ctr); ncontrollers++; diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c index 68db3c5a1063..c94bd12c0f7c 100644 --- a/drivers/isdn/capi/kcapi_proc.c +++ b/drivers/isdn/capi/kcapi_proc.c @@ -108,32 +108,6 @@ static const struct seq_operations seq_contrstats_ops = { .show = contrstats_show, }; -static int seq_controller_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &seq_controller_ops); -} - -static int seq_contrstats_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &seq_contrstats_ops); -} - -static const struct file_operations proc_controller_ops = { - .owner = THIS_MODULE, - .open = seq_controller_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations proc_contrstats_ops = { - .owner = THIS_MODULE, - .open = seq_contrstats_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - // /proc/capi/applications: // applid l3cnt dblkcnt dblklen #ncci recvqueuelen // /proc/capi/applstats: @@ -216,34 +190,6 @@ static const struct seq_operations seq_applstats_ops = { .show = applstats_show, }; -static int -seq_applications_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &seq_applications_ops); -} - -static int -seq_applstats_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &seq_applstats_ops); -} - -static const struct file_operations proc_applications_ops = { - .owner = THIS_MODULE, - .open = seq_applications_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations proc_applstats_ops = { - .owner = THIS_MODULE, - .open = seq_applstats_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - // --------------------------------------------------------------------------- static void *capi_driver_start(struct seq_file *seq, loff_t *pos) @@ -279,22 +225,6 @@ static const struct seq_operations seq_capi_driver_ops = { .show = capi_driver_show, }; -static int -seq_capi_driver_open(struct inode *inode, struct file *file) -{ - int err; - err = seq_open(file, &seq_capi_driver_ops); - return err; -} - -static const struct file_operations proc_driver_ops = { - .owner = THIS_MODULE, - .open = seq_capi_driver_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - // --------------------------------------------------------------------------- void __init @@ -302,11 +232,11 @@ kcapi_proc_init(void) { proc_mkdir("capi", NULL); proc_mkdir("capi/controllers", NULL); - proc_create("capi/controller", 0, NULL, &proc_controller_ops); - proc_create("capi/contrstats", 0, NULL, &proc_contrstats_ops); - proc_create("capi/applications", 0, NULL, &proc_applications_ops); - proc_create("capi/applstats", 0, NULL, &proc_applstats_ops); - proc_create("capi/driver", 0, NULL, &proc_driver_ops); + proc_create_seq("capi/controller", 0, NULL, &seq_controller_ops); + proc_create_seq("capi/contrstats", 0, NULL, &seq_contrstats_ops); + proc_create_seq("capi/applications", 0, NULL, &seq_applications_ops); + proc_create_seq("capi/applstats", 0, NULL, &seq_applstats_ops); + proc_create_seq("capi/driver", 0, NULL, &seq_capi_driver_ops); } void __exit diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index ccec7778cad2..56748af78c04 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -2437,19 +2437,6 @@ static int gigaset_proc_show(struct seq_file *m, void *v) return 0; } -static int gigaset_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, gigaset_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations gigaset_proc_fops = { - .owner = THIS_MODULE, - .open = gigaset_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /** * gigaset_isdn_regdev() - register device to LL * @cs: device descriptor structure. @@ -2479,7 +2466,7 @@ int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid) iif->ctr.release_appl = gigaset_release_appl; iif->ctr.send_message = gigaset_send_message; iif->ctr.procinfo = gigaset_procinfo; - iif->ctr.proc_fops = &gigaset_proc_fops; + iif->ctr.proc_show = gigaset_proc_show, INIT_LIST_HEAD(&iif->appls); skb_queue_head_init(&iif->sendqueue); atomic_set(&iif->sendqlen, 0); diff --git a/drivers/isdn/hardware/avm/avmcard.h b/drivers/isdn/hardware/avm/avmcard.h index c95712dbfa9f..cdfa89c71997 100644 --- a/drivers/isdn/hardware/avm/avmcard.h +++ b/drivers/isdn/hardware/avm/avmcard.h @@ -556,7 +556,7 @@ u16 b1_send_message(struct capi_ctr *ctrl, struct sk_buff *skb); void b1_parse_version(avmctrl_info *card); irqreturn_t b1_interrupt(int interrupt, void *devptr); -extern const struct file_operations b1ctl_proc_fops; +int b1_proc_show(struct seq_file *m, void *v); avmcard_dmainfo *avmcard_dma_alloc(char *name, struct pci_dev *, long rsize, long ssize); @@ -576,6 +576,6 @@ void b1dma_register_appl(struct capi_ctr *ctrl, capi_register_params *rp); void b1dma_release_appl(struct capi_ctr *ctrl, u16 appl); u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb); -extern const struct file_operations b1dmactl_proc_fops; +int b1dma_proc_show(struct seq_file *m, void *v); #endif /* _AVMCARD_H_ */ diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c index b1833d08a5fe..5ee5489d3f15 100644 --- a/drivers/isdn/hardware/avm/b1.c +++ b/drivers/isdn/hardware/avm/b1.c @@ -637,7 +637,7 @@ irqreturn_t b1_interrupt(int interrupt, void *devptr) } /* ------------------------------------------------------------- */ -static int b1ctl_proc_show(struct seq_file *m, void *v) +int b1_proc_show(struct seq_file *m, void *v) { struct capi_ctr *ctrl = m->private; avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); @@ -699,20 +699,7 @@ static int b1ctl_proc_show(struct seq_file *m, void *v) return 0; } - -static int b1ctl_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, b1ctl_proc_show, PDE_DATA(inode)); -} - -const struct file_operations b1ctl_proc_fops = { - .owner = THIS_MODULE, - .open = b1ctl_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -EXPORT_SYMBOL(b1ctl_proc_fops); +EXPORT_SYMBOL(b1_proc_show); /* ------------------------------------------------------------- */ diff --git a/drivers/isdn/hardware/avm/b1dma.c b/drivers/isdn/hardware/avm/b1dma.c index 9538a9e5e1a8..6a3dc9937ce5 100644 --- a/drivers/isdn/hardware/avm/b1dma.c +++ b/drivers/isdn/hardware/avm/b1dma.c @@ -858,7 +858,7 @@ u16 b1dma_send_message(struct capi_ctr *ctrl, struct sk_buff *skb) /* ------------------------------------------------------------- */ -static int b1dmactl_proc_show(struct seq_file *m, void *v) +int b1dma_proc_show(struct seq_file *m, void *v) { struct capi_ctr *ctrl = m->private; avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); @@ -941,20 +941,7 @@ static int b1dmactl_proc_show(struct seq_file *m, void *v) return 0; } - -static int b1dmactl_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, b1dmactl_proc_show, PDE_DATA(inode)); -} - -const struct file_operations b1dmactl_proc_fops = { - .owner = THIS_MODULE, - .open = b1dmactl_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -EXPORT_SYMBOL(b1dmactl_proc_fops); +EXPORT_SYMBOL(b1dma_proc_show); /* ------------------------------------------------------------- */ diff --git a/drivers/isdn/hardware/avm/b1isa.c b/drivers/isdn/hardware/avm/b1isa.c index 54e871a47387..cdfea72e0ef6 100644 --- a/drivers/isdn/hardware/avm/b1isa.c +++ b/drivers/isdn/hardware/avm/b1isa.c @@ -121,7 +121,7 @@ static int b1isa_probe(struct pci_dev *pdev) cinfo->capi_ctrl.load_firmware = b1_load_firmware; cinfo->capi_ctrl.reset_ctr = b1_reset_ctr; cinfo->capi_ctrl.procinfo = b1isa_procinfo; - cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops; + cinfo->capi_ctrl.proc_show = b1_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/avm/b1pci.c b/drivers/isdn/hardware/avm/b1pci.c index ac4863c2ecbc..b76b57a82c02 100644 --- a/drivers/isdn/hardware/avm/b1pci.c +++ b/drivers/isdn/hardware/avm/b1pci.c @@ -112,7 +112,7 @@ static int b1pci_probe(struct capicardparams *p, struct pci_dev *pdev) cinfo->capi_ctrl.load_firmware = b1_load_firmware; cinfo->capi_ctrl.reset_ctr = b1_reset_ctr; cinfo->capi_ctrl.procinfo = b1pci_procinfo; - cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops; + cinfo->capi_ctrl.proc_show = b1_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); cinfo->capi_ctrl.owner = THIS_MODULE; @@ -251,7 +251,7 @@ static int b1pciv4_probe(struct capicardparams *p, struct pci_dev *pdev) cinfo->capi_ctrl.load_firmware = b1dma_load_firmware; cinfo->capi_ctrl.reset_ctr = b1dma_reset_ctr; cinfo->capi_ctrl.procinfo = b1pciv4_procinfo; - cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops; + cinfo->capi_ctrl.proc_show = b1dma_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/avm/b1pcmcia.c b/drivers/isdn/hardware/avm/b1pcmcia.c index 6b0d19d963d5..3aca16e62902 100644 --- a/drivers/isdn/hardware/avm/b1pcmcia.c +++ b/drivers/isdn/hardware/avm/b1pcmcia.c @@ -108,7 +108,7 @@ static int b1pcmcia_add_card(unsigned int port, unsigned irq, cinfo->capi_ctrl.load_firmware = b1_load_firmware; cinfo->capi_ctrl.reset_ctr = b1_reset_ctr; cinfo->capi_ctrl.procinfo = b1pcmcia_procinfo; - cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops; + cinfo->capi_ctrl.proc_show = b1_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/avm/c4.c b/drivers/isdn/hardware/avm/c4.c index 034cabac699d..ac72cd204c4d 100644 --- a/drivers/isdn/hardware/avm/c4.c +++ b/drivers/isdn/hardware/avm/c4.c @@ -1127,19 +1127,6 @@ static int c4_proc_show(struct seq_file *m, void *v) return 0; } -static int c4_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, c4_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations c4_proc_fops = { - .owner = THIS_MODULE, - .open = c4_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* ------------------------------------------------------------- */ static int c4_add_card(struct capicardparams *p, struct pci_dev *dev, @@ -1211,7 +1198,7 @@ static int c4_add_card(struct capicardparams *p, struct pci_dev *dev, cinfo->capi_ctrl.load_firmware = c4_load_firmware; cinfo->capi_ctrl.reset_ctr = c4_reset_ctr; cinfo->capi_ctrl.procinfo = c4_procinfo; - cinfo->capi_ctrl.proc_fops = &c4_proc_fops; + cinfo->capi_ctrl.proc_show = c4_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/avm/t1isa.c b/drivers/isdn/hardware/avm/t1isa.c index 9f80d20ced87..2153619c5b31 100644 --- a/drivers/isdn/hardware/avm/t1isa.c +++ b/drivers/isdn/hardware/avm/t1isa.c @@ -430,7 +430,7 @@ static int t1isa_probe(struct pci_dev *pdev, int cardnr) cinfo->capi_ctrl.load_firmware = t1isa_load_firmware; cinfo->capi_ctrl.reset_ctr = t1isa_reset_ctr; cinfo->capi_ctrl.procinfo = t1isa_procinfo; - cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops; + cinfo->capi_ctrl.proc_show = b1_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/avm/t1pci.c b/drivers/isdn/hardware/avm/t1pci.c index 2180b1685691..f5ed1d5004c9 100644 --- a/drivers/isdn/hardware/avm/t1pci.c +++ b/drivers/isdn/hardware/avm/t1pci.c @@ -119,7 +119,7 @@ static int t1pci_add_card(struct capicardparams *p, struct pci_dev *pdev) cinfo->capi_ctrl.load_firmware = b1dma_load_firmware; cinfo->capi_ctrl.reset_ctr = b1dma_reset_ctr; cinfo->capi_ctrl.procinfo = t1pci_procinfo; - cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops; + cinfo->capi_ctrl.proc_show = b1dma_proc_show; strcpy(cinfo->capi_ctrl.name, card->name); retval = attach_capi_ctr(&cinfo->capi_ctrl); diff --git a/drivers/isdn/hardware/eicon/capimain.c b/drivers/isdn/hardware/eicon/capimain.c index be36d82004d6..f9244dc1c3c9 100644 --- a/drivers/isdn/hardware/eicon/capimain.c +++ b/drivers/isdn/hardware/eicon/capimain.c @@ -90,19 +90,6 @@ static int diva_ctl_proc_show(struct seq_file *m, void *v) return 0; } -static int diva_ctl_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, diva_ctl_proc_show, NULL); -} - -static const struct file_operations diva_ctl_proc_fops = { - .owner = THIS_MODULE, - .open = diva_ctl_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* * set additional os settings in capi_ctr struct */ @@ -111,7 +98,7 @@ void diva_os_set_controller_struct(struct capi_ctr *ctrl) ctrl->driver_name = DRIVERLNAME; ctrl->load_firmware = NULL; ctrl->reset_ctr = NULL; - ctrl->proc_fops = &diva_ctl_proc_fops; + ctrl->proc_show = diva_ctl_proc_show; ctrl->owner = THIS_MODULE; } diff --git a/drivers/isdn/hardware/eicon/diva_didd.c b/drivers/isdn/hardware/eicon/diva_didd.c index fab6ccfb00d5..60e79257dd5f 100644 --- a/drivers/isdn/hardware/eicon/diva_didd.c +++ b/drivers/isdn/hardware/eicon/diva_didd.c @@ -78,26 +78,13 @@ static int divadidd_proc_show(struct seq_file *m, void *v) return 0; } -static int divadidd_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, divadidd_proc_show, NULL); -} - -static const struct file_operations divadidd_proc_fops = { - .owner = THIS_MODULE, - .open = divadidd_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int __init create_proc(void) { proc_net_eicon = proc_mkdir("eicon", init_net.proc_net); if (proc_net_eicon) { - proc_didd = proc_create(DRIVERLNAME, S_IRUGO, proc_net_eicon, - &divadidd_proc_fops); + proc_didd = proc_create_single(DRIVERLNAME, S_IRUGO, + proc_net_eicon, divadidd_proc_show); return (1); } return (0); diff --git a/drivers/isdn/hardware/eicon/divasi.c b/drivers/isdn/hardware/eicon/divasi.c index 525518c945fe..e7081e0c0e35 100644 --- a/drivers/isdn/hardware/eicon/divasi.c +++ b/drivers/isdn/hardware/eicon/divasi.c @@ -101,23 +101,10 @@ static int um_idi_proc_show(struct seq_file *m, void *v) return 0; } -static int um_idi_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, um_idi_proc_show, NULL); -} - -static const struct file_operations um_idi_proc_fops = { - .owner = THIS_MODULE, - .open = um_idi_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int __init create_um_idi_proc(void) { - um_idi_proc_entry = proc_create(DRIVERLNAME, S_IRUGO, proc_net_eicon, - &um_idi_proc_fops); + um_idi_proc_entry = proc_create_single(DRIVERLNAME, S_IRUGO, + proc_net_eicon, um_idi_proc_show); if (!um_idi_proc_entry) return (0); return (1); diff --git a/drivers/isdn/hysdn/hycapi.c b/drivers/isdn/hysdn/hycapi.c index eac0f51a0f60..a2c15cd7bf67 100644 --- a/drivers/isdn/hysdn/hycapi.c +++ b/drivers/isdn/hysdn/hycapi.c @@ -467,19 +467,6 @@ static int hycapi_proc_show(struct seq_file *m, void *v) return 0; } -static int hycapi_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, hycapi_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations hycapi_proc_fops = { - .owner = THIS_MODULE, - .open = hycapi_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /************************************************************** hycapi_load_firmware @@ -774,7 +761,7 @@ hycapi_capi_create(hysdn_card *card) ctrl->load_firmware = hycapi_load_firmware; ctrl->reset_ctr = hycapi_reset_ctr; ctrl->procinfo = hycapi_procinfo; - ctrl->proc_fops = &hycapi_proc_fops; + ctrl->proc_show = hycapi_proc_show; strcpy(ctrl->name, cinfo->cardname); ctrl->owner = THIS_MODULE; diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 1f8f489b4167..98f90aadd141 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -588,7 +588,7 @@ static const struct proto_ops data_sock_ops = { .getname = data_sock_getname, .sendmsg = mISDN_sock_sendmsg, .recvmsg = mISDN_sock_recvmsg, - .poll = datagram_poll, + .poll_mask = datagram_poll_mask, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = data_sock_setsockopt, @@ -745,7 +745,6 @@ static const struct proto_ops base_sock_ops = { .getname = sock_no_getname, .sendmsg = sock_no_sendmsg, .recvmsg = sock_no_recvmsg, - .poll = sock_no_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 63171cdce270..60aa7bc5a630 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -431,7 +431,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create) return 0; err_sysfs: if (tt->exit) - tt->exit(targetdata); + tt->exit(targetdata, true); err_init: blk_cleanup_queue(tqueue); tdisk->queue = NULL; @@ -446,7 +446,7 @@ err_reserve: return ret; } -static void __nvm_remove_target(struct nvm_target *t) +static void __nvm_remove_target(struct nvm_target *t, bool graceful) { struct nvm_tgt_type *tt = t->type; struct gendisk *tdisk = t->disk; @@ -459,7 +459,7 @@ static void __nvm_remove_target(struct nvm_target *t) tt->sysfs_exit(tdisk); if (tt->exit) - tt->exit(tdisk->private_data); + tt->exit(tdisk->private_data, graceful); nvm_remove_tgt_dev(t->dev, 1); put_disk(tdisk); @@ -489,7 +489,7 @@ static int nvm_remove_tgt(struct nvm_dev *dev, struct nvm_ioctl_remove *remove) mutex_unlock(&dev->mlock); return 1; } - __nvm_remove_target(t); + __nvm_remove_target(t, true); mutex_unlock(&dev->mlock); return 0; @@ -963,7 +963,7 @@ void nvm_unregister(struct nvm_dev *dev) list_for_each_entry_safe(t, tmp, &dev->targets, list) { if (t->dev->parent != dev) continue; - __nvm_remove_target(t); + __nvm_remove_target(t, false); } mutex_unlock(&dev->mlock); diff --git a/drivers/lightnvm/pblk-cache.c b/drivers/lightnvm/pblk-cache.c index 29a23111b31c..b1c6d7eb6115 100644 --- a/drivers/lightnvm/pblk-cache.c +++ b/drivers/lightnvm/pblk-cache.c @@ -44,13 +44,15 @@ retry: goto out; } - if (unlikely(!bio_has_data(bio))) - goto out; - pblk_ppa_set_empty(&w_ctx.ppa); w_ctx.flags = flags; - if (bio->bi_opf & REQ_PREFLUSH) + if (bio->bi_opf & REQ_PREFLUSH) { w_ctx.flags |= PBLK_FLUSH_ENTRY; + pblk_write_kick(pblk); + } + + if (unlikely(!bio_has_data(bio))) + goto out; for (i = 0; i < nr_entries; i++) { void *data = bio_data(bio); diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c index 94d5d97c9d8a..ed9cc977c8b3 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -40,7 +40,7 @@ static void pblk_line_mark_bb(struct work_struct *work) } kfree(ppa); - mempool_free(line_ws, pblk->gen_ws_pool); + mempool_free(line_ws, &pblk->gen_ws_pool); } static void pblk_mark_bb(struct pblk *pblk, struct pblk_line *line, @@ -102,7 +102,7 @@ static void pblk_end_io_erase(struct nvm_rq *rqd) struct pblk *pblk = rqd->private; __pblk_end_io_erase(pblk, rqd); - mempool_free(rqd, pblk->e_rq_pool); + mempool_free(rqd, &pblk->e_rq_pool); } /* @@ -237,15 +237,15 @@ struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int type) switch (type) { case PBLK_WRITE: case PBLK_WRITE_INT: - pool = pblk->w_rq_pool; + pool = &pblk->w_rq_pool; rq_size = pblk_w_rq_size; break; case PBLK_READ: - pool = pblk->r_rq_pool; + pool = &pblk->r_rq_pool; rq_size = pblk_g_rq_size; break; default: - pool = pblk->e_rq_pool; + pool = &pblk->e_rq_pool; rq_size = pblk_g_rq_size; } @@ -265,20 +265,22 @@ void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int type) case PBLK_WRITE: kfree(((struct pblk_c_ctx *)nvm_rq_to_pdu(rqd))->lun_bitmap); case PBLK_WRITE_INT: - pool = pblk->w_rq_pool; + pool = &pblk->w_rq_pool; break; case PBLK_READ: - pool = pblk->r_rq_pool; + pool = &pblk->r_rq_pool; break; case PBLK_ERASE: - pool = pblk->e_rq_pool; + pool = &pblk->e_rq_pool; break; default: pr_err("pblk: trying to free unknown rqd type\n"); return; } - nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list); + if (rqd->meta_list) + nvm_dev_dma_free(dev->parent, rqd->meta_list, + rqd->dma_meta_list); mempool_free(rqd, pool); } @@ -292,7 +294,7 @@ void pblk_bio_free_pages(struct pblk *pblk, struct bio *bio, int off, for (i = off; i < nr_pages + off; i++) { bv = bio->bi_io_vec[i]; - mempool_free(bv.bv_page, pblk->page_bio_pool); + mempool_free(bv.bv_page, &pblk->page_bio_pool); } } @@ -304,23 +306,23 @@ int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags, int i, ret; for (i = 0; i < nr_pages; i++) { - page = mempool_alloc(pblk->page_bio_pool, flags); + page = mempool_alloc(&pblk->page_bio_pool, flags); ret = bio_add_pc_page(q, bio, page, PBLK_EXPOSED_PAGE_SIZE, 0); if (ret != PBLK_EXPOSED_PAGE_SIZE) { pr_err("pblk: could not add page to bio\n"); - mempool_free(page, pblk->page_bio_pool); + mempool_free(page, &pblk->page_bio_pool); goto err; } } return 0; err: - pblk_bio_free_pages(pblk, bio, 0, i - 1); + pblk_bio_free_pages(pblk, bio, (bio->bi_vcnt - i), i); return -1; } -static void pblk_write_kick(struct pblk *pblk) +void pblk_write_kick(struct pblk *pblk) { wake_up_process(pblk->writer_ts); mod_timer(&pblk->wtimer, jiffies + msecs_to_jiffies(1000)); @@ -342,13 +344,6 @@ void pblk_write_should_kick(struct pblk *pblk) pblk_write_kick(pblk); } -void pblk_end_io_sync(struct nvm_rq *rqd) -{ - struct completion *waiting = rqd->private; - - complete(waiting); -} - static void pblk_wait_for_meta(struct pblk *pblk) { do { @@ -380,7 +375,13 @@ struct list_head *pblk_line_gc_list(struct pblk *pblk, struct pblk_line *line) lockdep_assert_held(&line->lock); - if (!vsc) { + if (line->w_err_gc->has_write_err) { + if (line->gc_group != PBLK_LINEGC_WERR) { + line->gc_group = PBLK_LINEGC_WERR; + move_list = &l_mg->gc_werr_list; + pblk_rl_werr_line_in(&pblk->rl); + } + } else if (!vsc) { if (line->gc_group != PBLK_LINEGC_FULL) { line->gc_group = PBLK_LINEGC_FULL; move_list = &l_mg->gc_full_list; @@ -467,16 +468,13 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd) { struct nvm_tgt_dev *dev = pblk->dev; -#ifdef CONFIG_NVM_DEBUG - int ret; + atomic_inc(&pblk->inflight_io); - ret = pblk_check_io(pblk, rqd); - if (ret) - return ret; +#ifdef CONFIG_NVM_DEBUG + if (pblk_check_io(pblk, rqd)) + return NVM_IO_ERR; #endif - atomic_inc(&pblk->inflight_io); - return nvm_submit_io(dev, rqd); } @@ -484,16 +482,13 @@ int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd) { struct nvm_tgt_dev *dev = pblk->dev; -#ifdef CONFIG_NVM_DEBUG - int ret; + atomic_inc(&pblk->inflight_io); - ret = pblk_check_io(pblk, rqd); - if (ret) - return ret; +#ifdef CONFIG_NVM_DEBUG + if (pblk_check_io(pblk, rqd)) + return NVM_IO_ERR; #endif - atomic_inc(&pblk->inflight_io); - return nvm_submit_io_sync(dev, rqd); } @@ -856,9 +851,10 @@ static int pblk_line_submit_smeta_io(struct pblk *pblk, struct pblk_line *line, atomic_dec(&pblk->inflight_io); if (rqd.error) { - if (dir == PBLK_WRITE) + if (dir == PBLK_WRITE) { pblk_log_write_err(pblk, &rqd); - else if (dir == PBLK_READ) + ret = 1; + } else if (dir == PBLK_READ) pblk_log_read_err(pblk, &rqd); } @@ -1071,6 +1067,25 @@ static int pblk_line_init_metadata(struct pblk *pblk, struct pblk_line *line, return 1; } +static int pblk_line_alloc_bitmaps(struct pblk *pblk, struct pblk_line *line) +{ + struct pblk_line_meta *lm = &pblk->lm; + + line->map_bitmap = kzalloc(lm->sec_bitmap_len, GFP_KERNEL); + if (!line->map_bitmap) + return -ENOMEM; + + /* will be initialized using bb info from map_bitmap */ + line->invalid_bitmap = kmalloc(lm->sec_bitmap_len, GFP_KERNEL); + if (!line->invalid_bitmap) { + kfree(line->map_bitmap); + line->map_bitmap = NULL; + return -ENOMEM; + } + + return 0; +} + /* For now lines are always assumed full lines. Thus, smeta former and current * lun bitmaps are omitted. */ @@ -1108,7 +1123,7 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line, if (init && pblk_line_submit_smeta_io(pblk, line, off, PBLK_WRITE)) { pr_debug("pblk: line smeta I/O failed. Retry\n"); - return 1; + return 0; } bitmap_copy(line->invalid_bitmap, line->map_bitmap, lm->sec_per_line); @@ -1174,19 +1189,9 @@ static int pblk_prepare_new_line(struct pblk *pblk, struct pblk_line *line) static int pblk_line_prepare(struct pblk *pblk, struct pblk_line *line) { struct pblk_line_meta *lm = &pblk->lm; + int blk_in_line = atomic_read(&line->blk_in_line); int blk_to_erase; - line->map_bitmap = kzalloc(lm->sec_bitmap_len, GFP_ATOMIC); - if (!line->map_bitmap) - return -ENOMEM; - - /* will be initialized using bb info from map_bitmap */ - line->invalid_bitmap = kmalloc(lm->sec_bitmap_len, GFP_ATOMIC); - if (!line->invalid_bitmap) { - kfree(line->map_bitmap); - return -ENOMEM; - } - /* Bad blocks do not need to be erased */ bitmap_copy(line->erase_bitmap, line->blk_bitmap, lm->blk_per_line); @@ -1199,16 +1204,19 @@ static int pblk_line_prepare(struct pblk *pblk, struct pblk_line *line) blk_to_erase = pblk_prepare_new_line(pblk, line); line->state = PBLK_LINESTATE_FREE; } else { - blk_to_erase = atomic_read(&line->blk_in_line); + blk_to_erase = blk_in_line; } - if (line->state != PBLK_LINESTATE_FREE) { - kfree(line->map_bitmap); - kfree(line->invalid_bitmap); + if (blk_in_line < lm->min_blk_line) { spin_unlock(&line->lock); + return -EAGAIN; + } + + if (line->state != PBLK_LINESTATE_FREE) { WARN(1, "pblk: corrupted line %d, state %d\n", line->id, line->state); - return -EAGAIN; + spin_unlock(&line->lock); + return -EINTR; } line->state = PBLK_LINESTATE_OPEN; @@ -1241,13 +1249,16 @@ int pblk_line_recov_alloc(struct pblk *pblk, struct pblk_line *line) } spin_unlock(&l_mg->free_lock); - pblk_rl_free_lines_dec(&pblk->rl, line, true); + ret = pblk_line_alloc_bitmaps(pblk, line); + if (ret) + return ret; if (!pblk_line_init_bb(pblk, line, 0)) { list_add(&line->list, &l_mg->free_list); return -EINTR; } + pblk_rl_free_lines_dec(&pblk->rl, line, true); return 0; } @@ -1259,6 +1270,24 @@ void pblk_line_recov_close(struct pblk *pblk, struct pblk_line *line) line->emeta = NULL; } +static void pblk_line_reinit(struct pblk_line *line) +{ + *line->vsc = cpu_to_le32(EMPTY_ENTRY); + + line->map_bitmap = NULL; + line->invalid_bitmap = NULL; + line->smeta = NULL; + line->emeta = NULL; +} + +void pblk_line_free(struct pblk_line *line) +{ + kfree(line->map_bitmap); + kfree(line->invalid_bitmap); + + pblk_line_reinit(line); +} + struct pblk_line *pblk_line_get(struct pblk *pblk) { struct pblk_line_mgmt *l_mg = &pblk->l_mg; @@ -1292,10 +1321,14 @@ retry: ret = pblk_line_prepare(pblk, line); if (ret) { - if (ret == -EAGAIN) { + switch (ret) { + case -EAGAIN: + list_add(&line->list, &l_mg->bad_list); + goto retry; + case -EINTR: list_add(&line->list, &l_mg->corrupt_list); goto retry; - } else { + default: pr_err("pblk: failed to prepare line %d\n", line->id); list_add(&line->list, &l_mg->free_list); l_mg->nr_free_lines++; @@ -1321,11 +1354,14 @@ retry: return NULL; } + retry_line->map_bitmap = line->map_bitmap; + retry_line->invalid_bitmap = line->invalid_bitmap; retry_line->smeta = line->smeta; retry_line->emeta = line->emeta; retry_line->meta_line = line->meta_line; - pblk_line_free(pblk, line); + pblk_line_reinit(line); + l_mg->data_line = retry_line; spin_unlock(&l_mg->free_lock); @@ -1378,6 +1414,9 @@ struct pblk_line *pblk_line_get_first_data(struct pblk *pblk) } spin_unlock(&l_mg->free_lock); + if (pblk_line_alloc_bitmaps(pblk, line)) + return NULL; + if (pblk_line_erase(pblk, line)) { line = pblk_line_retry(pblk, line); if (!line) @@ -1449,7 +1488,7 @@ static void pblk_line_close_meta_sync(struct pblk *pblk) flush_workqueue(pblk->close_wq); } -void pblk_pipeline_stop(struct pblk *pblk) +void __pblk_pipeline_flush(struct pblk *pblk) { struct pblk_line_mgmt *l_mg = &pblk->l_mg; int ret; @@ -1474,6 +1513,11 @@ void pblk_pipeline_stop(struct pblk *pblk) flush_workqueue(pblk->bb_wq); pblk_line_close_meta_sync(pblk); +} + +void __pblk_pipeline_stop(struct pblk *pblk) +{ + struct pblk_line_mgmt *l_mg = &pblk->l_mg; spin_lock(&l_mg->free_lock); pblk->state = PBLK_STATE_STOPPED; @@ -1482,6 +1526,12 @@ void pblk_pipeline_stop(struct pblk *pblk) spin_unlock(&l_mg->free_lock); } +void pblk_pipeline_stop(struct pblk *pblk) +{ + __pblk_pipeline_flush(pblk); + __pblk_pipeline_stop(pblk); +} + struct pblk_line *pblk_line_replace_data(struct pblk *pblk) { struct pblk_line_mgmt *l_mg = &pblk->l_mg; @@ -1511,6 +1561,9 @@ retry_erase: goto retry_erase; } + if (pblk_line_alloc_bitmaps(pblk, new)) + return NULL; + retry_setup: if (!pblk_line_init_metadata(pblk, new, cur)) { new = pblk_line_retry(pblk, new); @@ -1550,19 +1603,6 @@ out: return new; } -void pblk_line_free(struct pblk *pblk, struct pblk_line *line) -{ - kfree(line->map_bitmap); - kfree(line->invalid_bitmap); - - *line->vsc = cpu_to_le32(EMPTY_ENTRY); - - line->map_bitmap = NULL; - line->invalid_bitmap = NULL; - line->smeta = NULL; - line->emeta = NULL; -} - static void __pblk_line_put(struct pblk *pblk, struct pblk_line *line) { struct pblk_line_mgmt *l_mg = &pblk->l_mg; @@ -1572,9 +1612,14 @@ static void __pblk_line_put(struct pblk *pblk, struct pblk_line *line) WARN_ON(line->state != PBLK_LINESTATE_GC); line->state = PBLK_LINESTATE_FREE; line->gc_group = PBLK_LINEGC_NONE; - pblk_line_free(pblk, line); - spin_unlock(&line->lock); + pblk_line_free(line); + + if (line->w_err_gc->has_write_err) { + pblk_rl_werr_line_out(&pblk->rl); + line->w_err_gc->has_write_err = 0; + } + spin_unlock(&line->lock); atomic_dec(&gc->pipeline_gc); spin_lock(&l_mg->free_lock); @@ -1593,7 +1638,7 @@ static void pblk_line_put_ws(struct work_struct *work) struct pblk_line *line = line_put_ws->line; __pblk_line_put(pblk, line); - mempool_free(line_put_ws, pblk->gen_ws_pool); + mempool_free(line_put_ws, &pblk->gen_ws_pool); } void pblk_line_put(struct kref *ref) @@ -1610,7 +1655,7 @@ void pblk_line_put_wq(struct kref *ref) struct pblk *pblk = line->pblk; struct pblk_line_ws *line_put_ws; - line_put_ws = mempool_alloc(pblk->gen_ws_pool, GFP_ATOMIC); + line_put_ws = mempool_alloc(&pblk->gen_ws_pool, GFP_ATOMIC); if (!line_put_ws) return; @@ -1737,11 +1782,34 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line) spin_lock(&l_mg->close_lock); spin_lock(&line->lock); + + /* Update the in-memory start address for emeta, in case it has + * shifted due to write errors + */ + if (line->emeta_ssec != line->cur_sec) + line->emeta_ssec = line->cur_sec; + list_add_tail(&line->list, &l_mg->emeta_list); spin_unlock(&line->lock); spin_unlock(&l_mg->close_lock); pblk_line_should_sync_meta(pblk); + + +} + +static void pblk_save_lba_list(struct pblk *pblk, struct pblk_line *line) +{ + struct pblk_line_meta *lm = &pblk->lm; + struct pblk_line_mgmt *l_mg = &pblk->l_mg; + unsigned int lba_list_size = lm->emeta_len[2]; + struct pblk_w_err_gc *w_err_gc = line->w_err_gc; + struct pblk_emeta *emeta = line->emeta; + + w_err_gc->lba_list = pblk_malloc(lba_list_size, + l_mg->emeta_alloc_type, GFP_KERNEL); + memcpy(w_err_gc->lba_list, emeta_to_lbas(pblk, emeta->buf), + lba_list_size); } void pblk_line_close_ws(struct work_struct *work) @@ -1750,9 +1818,16 @@ void pblk_line_close_ws(struct work_struct *work) ws); struct pblk *pblk = line_ws->pblk; struct pblk_line *line = line_ws->line; + struct pblk_w_err_gc *w_err_gc = line->w_err_gc; + + /* Write errors makes the emeta start address stored in smeta invalid, + * so keep a copy of the lba list until we've gc'd the line + */ + if (w_err_gc->has_write_err) + pblk_save_lba_list(pblk, line); pblk_line_close(pblk, line); - mempool_free(line_ws, pblk->gen_ws_pool); + mempool_free(line_ws, &pblk->gen_ws_pool); } void pblk_gen_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv, @@ -1761,7 +1836,7 @@ void pblk_gen_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv, { struct pblk_line_ws *line_ws; - line_ws = mempool_alloc(pblk->gen_ws_pool, gfp_mask); + line_ws = mempool_alloc(&pblk->gen_ws_pool, gfp_mask); line_ws->pblk = pblk; line_ws->line = line; diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c index 6851a5c67189..df88f1bdd921 100644 --- a/drivers/lightnvm/pblk-gc.c +++ b/drivers/lightnvm/pblk-gc.c @@ -129,6 +129,53 @@ out: kfree(gc_rq_ws); } +static __le64 *get_lba_list_from_emeta(struct pblk *pblk, + struct pblk_line *line) +{ + struct line_emeta *emeta_buf; + struct pblk_line_mgmt *l_mg = &pblk->l_mg; + struct pblk_line_meta *lm = &pblk->lm; + unsigned int lba_list_size = lm->emeta_len[2]; + __le64 *lba_list; + int ret; + + emeta_buf = pblk_malloc(lm->emeta_len[0], + l_mg->emeta_alloc_type, GFP_KERNEL); + if (!emeta_buf) + return NULL; + + ret = pblk_line_read_emeta(pblk, line, emeta_buf); + if (ret) { + pr_err("pblk: line %d read emeta failed (%d)\n", + line->id, ret); + pblk_mfree(emeta_buf, l_mg->emeta_alloc_type); + return NULL; + } + + /* If this read fails, it means that emeta is corrupted. + * For now, leave the line untouched. + * TODO: Implement a recovery routine that scans and moves + * all sectors on the line. + */ + + ret = pblk_recov_check_emeta(pblk, emeta_buf); + if (ret) { + pr_err("pblk: inconsistent emeta (line %d)\n", + line->id); + pblk_mfree(emeta_buf, l_mg->emeta_alloc_type); + return NULL; + } + + lba_list = pblk_malloc(lba_list_size, + l_mg->emeta_alloc_type, GFP_KERNEL); + if (lba_list) + memcpy(lba_list, emeta_to_lbas(pblk, emeta_buf), lba_list_size); + + pblk_mfree(emeta_buf, l_mg->emeta_alloc_type); + + return lba_list; +} + static void pblk_gc_line_prepare_ws(struct work_struct *work) { struct pblk_line_ws *line_ws = container_of(work, struct pblk_line_ws, @@ -138,46 +185,26 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work) struct pblk_line_mgmt *l_mg = &pblk->l_mg; struct pblk_line_meta *lm = &pblk->lm; struct pblk_gc *gc = &pblk->gc; - struct line_emeta *emeta_buf; struct pblk_line_ws *gc_rq_ws; struct pblk_gc_rq *gc_rq; __le64 *lba_list; unsigned long *invalid_bitmap; int sec_left, nr_secs, bit; - int ret; invalid_bitmap = kmalloc(lm->sec_bitmap_len, GFP_KERNEL); if (!invalid_bitmap) goto fail_free_ws; - emeta_buf = pblk_malloc(lm->emeta_len[0], l_mg->emeta_alloc_type, - GFP_KERNEL); - if (!emeta_buf) { - pr_err("pblk: cannot use GC emeta\n"); - goto fail_free_bitmap; - } - - ret = pblk_line_read_emeta(pblk, line, emeta_buf); - if (ret) { - pr_err("pblk: line %d read emeta failed (%d)\n", line->id, ret); - goto fail_free_emeta; - } - - /* If this read fails, it means that emeta is corrupted. For now, leave - * the line untouched. TODO: Implement a recovery routine that scans and - * moves all sectors on the line. - */ - - ret = pblk_recov_check_emeta(pblk, emeta_buf); - if (ret) { - pr_err("pblk: inconsistent emeta (line %d)\n", line->id); - goto fail_free_emeta; - } - - lba_list = emeta_to_lbas(pblk, emeta_buf); - if (!lba_list) { - pr_err("pblk: could not interpret emeta (line %d)\n", line->id); - goto fail_free_emeta; + if (line->w_err_gc->has_write_err) { + lba_list = line->w_err_gc->lba_list; + line->w_err_gc->lba_list = NULL; + } else { + lba_list = get_lba_list_from_emeta(pblk, line); + if (!lba_list) { + pr_err("pblk: could not interpret emeta (line %d)\n", + line->id); + goto fail_free_ws; + } } spin_lock(&line->lock); @@ -187,14 +214,14 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work) if (sec_left < 0) { pr_err("pblk: corrupted GC line (%d)\n", line->id); - goto fail_free_emeta; + goto fail_free_lba_list; } bit = -1; next_rq: gc_rq = kmalloc(sizeof(struct pblk_gc_rq), GFP_KERNEL); if (!gc_rq) - goto fail_free_emeta; + goto fail_free_lba_list; nr_secs = 0; do { @@ -240,7 +267,7 @@ next_rq: goto next_rq; out: - pblk_mfree(emeta_buf, l_mg->emeta_alloc_type); + pblk_mfree(lba_list, l_mg->emeta_alloc_type); kfree(line_ws); kfree(invalid_bitmap); @@ -251,9 +278,8 @@ out: fail_free_gc_rq: kfree(gc_rq); -fail_free_emeta: - pblk_mfree(emeta_buf, l_mg->emeta_alloc_type); -fail_free_bitmap: +fail_free_lba_list: + pblk_mfree(lba_list, l_mg->emeta_alloc_type); kfree(invalid_bitmap); fail_free_ws: kfree(line_ws); @@ -349,12 +375,14 @@ static struct pblk_line *pblk_gc_get_victim_line(struct pblk *pblk, static bool pblk_gc_should_run(struct pblk_gc *gc, struct pblk_rl *rl) { unsigned int nr_blocks_free, nr_blocks_need; + unsigned int werr_lines = atomic_read(&rl->werr_lines); nr_blocks_need = pblk_rl_high_thrs(rl); nr_blocks_free = pblk_rl_nr_free_blks(rl); /* This is not critical, no need to take lock here */ - return ((gc->gc_active) && (nr_blocks_need > nr_blocks_free)); + return ((werr_lines > 0) || + ((gc->gc_active) && (nr_blocks_need > nr_blocks_free))); } void pblk_gc_free_full_lines(struct pblk *pblk) @@ -649,7 +677,7 @@ fail_free_main_kthread: return ret; } -void pblk_gc_exit(struct pblk *pblk) +void pblk_gc_exit(struct pblk *pblk, bool graceful) { struct pblk_gc *gc = &pblk->gc; @@ -663,10 +691,12 @@ void pblk_gc_exit(struct pblk *pblk) if (gc->gc_reader_ts) kthread_stop(gc->gc_reader_ts); - flush_workqueue(gc->gc_reader_wq); - destroy_workqueue(gc->gc_reader_wq); + if (graceful) { + flush_workqueue(gc->gc_reader_wq); + flush_workqueue(gc->gc_line_reader_wq); + } - flush_workqueue(gc->gc_line_reader_wq); + destroy_workqueue(gc->gc_reader_wq); destroy_workqueue(gc->gc_line_reader_wq); if (gc->gc_writer_ts) diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c index 91a5bc2556a3..ce561f5d48ce 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -20,10 +20,15 @@ #include "pblk.h" +unsigned int write_buffer_size; + +module_param(write_buffer_size, uint, 0644); +MODULE_PARM_DESC(write_buffer_size, "number of entries in a write buffer"); + static struct kmem_cache *pblk_ws_cache, *pblk_rec_cache, *pblk_g_rq_cache, *pblk_w_rq_cache; static DECLARE_RWSEM(pblk_lock); -struct bio_set *pblk_bio_set; +struct bio_set pblk_bio_set; static int pblk_rw_io(struct request_queue *q, struct pblk *pblk, struct bio *bio) @@ -127,10 +132,8 @@ static int pblk_l2p_recover(struct pblk *pblk, bool factory_init) if (!line) { /* Configure next line for user data */ line = pblk_line_get_first_data(pblk); - if (!line) { - pr_err("pblk: line list corrupted\n"); + if (!line) return -EFAULT; - } } return 0; @@ -141,6 +144,7 @@ static int pblk_l2p_init(struct pblk *pblk, bool factory_init) sector_t i; struct ppa_addr ppa; size_t map_size; + int ret = 0; map_size = pblk_trans_map_size(pblk); pblk->trans_map = vmalloc(map_size); @@ -152,7 +156,11 @@ static int pblk_l2p_init(struct pblk *pblk, bool factory_init) for (i = 0; i < pblk->rl.nr_secs; i++) pblk_trans_map_set(pblk, i, ppa); - return pblk_l2p_recover(pblk, factory_init); + ret = pblk_l2p_recover(pblk, factory_init); + if (ret) + vfree(pblk->trans_map); + + return ret; } static void pblk_rwb_free(struct pblk *pblk) @@ -169,10 +177,15 @@ static int pblk_rwb_init(struct pblk *pblk) struct nvm_tgt_dev *dev = pblk->dev; struct nvm_geo *geo = &dev->geo; struct pblk_rb_entry *entries; - unsigned long nr_entries; + unsigned long nr_entries, buffer_size; unsigned int power_size, power_seg_sz; - nr_entries = pblk_rb_calculate_size(pblk->pgs_in_buffer); + if (write_buffer_size && (write_buffer_size > pblk->pgs_in_buffer)) + buffer_size = write_buffer_size; + else + buffer_size = pblk->pgs_in_buffer; + + nr_entries = pblk_rb_calculate_size(buffer_size); entries = vzalloc(nr_entries * sizeof(struct pblk_rb_entry)); if (!entries) @@ -341,7 +354,7 @@ static int pblk_core_init(struct pblk *pblk) { struct nvm_tgt_dev *dev = pblk->dev; struct nvm_geo *geo = &dev->geo; - int max_write_ppas; + int ret, max_write_ppas; atomic64_set(&pblk->user_wa, 0); atomic64_set(&pblk->pad_wa, 0); @@ -375,33 +388,33 @@ static int pblk_core_init(struct pblk *pblk) goto fail_free_pad_dist; /* Internal bios can be at most the sectors signaled by the device. */ - pblk->page_bio_pool = mempool_create_page_pool(NVM_MAX_VLBA, 0); - if (!pblk->page_bio_pool) + ret = mempool_init_page_pool(&pblk->page_bio_pool, NVM_MAX_VLBA, 0); + if (ret) goto free_global_caches; - pblk->gen_ws_pool = mempool_create_slab_pool(PBLK_GEN_WS_POOL_SIZE, - pblk_ws_cache); - if (!pblk->gen_ws_pool) + ret = mempool_init_slab_pool(&pblk->gen_ws_pool, PBLK_GEN_WS_POOL_SIZE, + pblk_ws_cache); + if (ret) goto free_page_bio_pool; - pblk->rec_pool = mempool_create_slab_pool(geo->all_luns, - pblk_rec_cache); - if (!pblk->rec_pool) + ret = mempool_init_slab_pool(&pblk->rec_pool, geo->all_luns, + pblk_rec_cache); + if (ret) goto free_gen_ws_pool; - pblk->r_rq_pool = mempool_create_slab_pool(geo->all_luns, - pblk_g_rq_cache); - if (!pblk->r_rq_pool) + ret = mempool_init_slab_pool(&pblk->r_rq_pool, geo->all_luns, + pblk_g_rq_cache); + if (ret) goto free_rec_pool; - pblk->e_rq_pool = mempool_create_slab_pool(geo->all_luns, - pblk_g_rq_cache); - if (!pblk->e_rq_pool) + ret = mempool_init_slab_pool(&pblk->e_rq_pool, geo->all_luns, + pblk_g_rq_cache); + if (ret) goto free_r_rq_pool; - pblk->w_rq_pool = mempool_create_slab_pool(geo->all_luns, - pblk_w_rq_cache); - if (!pblk->w_rq_pool) + ret = mempool_init_slab_pool(&pblk->w_rq_pool, geo->all_luns, + pblk_w_rq_cache); + if (ret) goto free_e_rq_pool; pblk->close_wq = alloc_workqueue("pblk-close-wq", @@ -423,6 +436,7 @@ static int pblk_core_init(struct pblk *pblk) goto free_r_end_wq; INIT_LIST_HEAD(&pblk->compl_list); + INIT_LIST_HEAD(&pblk->resubmit_list); return 0; @@ -433,17 +447,17 @@ free_bb_wq: free_close_wq: destroy_workqueue(pblk->close_wq); free_w_rq_pool: - mempool_destroy(pblk->w_rq_pool); + mempool_exit(&pblk->w_rq_pool); free_e_rq_pool: - mempool_destroy(pblk->e_rq_pool); + mempool_exit(&pblk->e_rq_pool); free_r_rq_pool: - mempool_destroy(pblk->r_rq_pool); + mempool_exit(&pblk->r_rq_pool); free_rec_pool: - mempool_destroy(pblk->rec_pool); + mempool_exit(&pblk->rec_pool); free_gen_ws_pool: - mempool_destroy(pblk->gen_ws_pool); + mempool_exit(&pblk->gen_ws_pool); free_page_bio_pool: - mempool_destroy(pblk->page_bio_pool); + mempool_exit(&pblk->page_bio_pool); free_global_caches: pblk_free_global_caches(pblk); fail_free_pad_dist: @@ -462,12 +476,12 @@ static void pblk_core_free(struct pblk *pblk) if (pblk->bb_wq) destroy_workqueue(pblk->bb_wq); - mempool_destroy(pblk->page_bio_pool); - mempool_destroy(pblk->gen_ws_pool); - mempool_destroy(pblk->rec_pool); - mempool_destroy(pblk->r_rq_pool); - mempool_destroy(pblk->e_rq_pool); - mempool_destroy(pblk->w_rq_pool); + mempool_exit(&pblk->page_bio_pool); + mempool_exit(&pblk->gen_ws_pool); + mempool_exit(&pblk->rec_pool); + mempool_exit(&pblk->r_rq_pool); + mempool_exit(&pblk->e_rq_pool); + mempool_exit(&pblk->w_rq_pool); pblk_free_global_caches(pblk); kfree(pblk->pad_dist); @@ -489,11 +503,17 @@ static void pblk_line_mg_free(struct pblk *pblk) } } -static void pblk_line_meta_free(struct pblk_line *line) +static void pblk_line_meta_free(struct pblk_line_mgmt *l_mg, + struct pblk_line *line) { + struct pblk_w_err_gc *w_err_gc = line->w_err_gc; + kfree(line->blk_bitmap); kfree(line->erase_bitmap); kfree(line->chks); + + pblk_mfree(w_err_gc->lba_list, l_mg->emeta_alloc_type); + kfree(w_err_gc); } static void pblk_lines_free(struct pblk *pblk) @@ -506,8 +526,8 @@ static void pblk_lines_free(struct pblk *pblk) for (i = 0; i < l_mg->nr_lines; i++) { line = &pblk->lines[i]; - pblk_line_free(pblk, line); - pblk_line_meta_free(line); + pblk_line_free(line); + pblk_line_meta_free(l_mg, line); } spin_unlock(&l_mg->free_lock); @@ -748,14 +768,14 @@ static int pblk_setup_line_meta_20(struct pblk *pblk, struct pblk_line *line, chunk->cnlb = chunk_meta->cnlb; chunk->wp = chunk_meta->wp; - if (!(chunk->state & NVM_CHK_ST_OFFLINE)) - continue; - if (chunk->type & NVM_CHK_TP_SZ_SPEC) { WARN_ONCE(1, "pblk: custom-sized chunks unsupported\n"); continue; } + if (!(chunk->state & NVM_CHK_ST_OFFLINE)) + continue; + set_bit(pos, line->blk_bitmap); nr_bad_chks++; } @@ -809,20 +829,28 @@ static int pblk_alloc_line_meta(struct pblk *pblk, struct pblk_line *line) return -ENOMEM; line->erase_bitmap = kzalloc(lm->blk_bitmap_len, GFP_KERNEL); - if (!line->erase_bitmap) { - kfree(line->blk_bitmap); - return -ENOMEM; - } + if (!line->erase_bitmap) + goto free_blk_bitmap; + line->chks = kmalloc(lm->blk_per_line * sizeof(struct nvm_chk_meta), GFP_KERNEL); - if (!line->chks) { - kfree(line->erase_bitmap); - kfree(line->blk_bitmap); - return -ENOMEM; - } + if (!line->chks) + goto free_erase_bitmap; + + line->w_err_gc = kzalloc(sizeof(struct pblk_w_err_gc), GFP_KERNEL); + if (!line->w_err_gc) + goto free_chks; return 0; + +free_chks: + kfree(line->chks); +free_erase_bitmap: + kfree(line->erase_bitmap); +free_blk_bitmap: + kfree(line->blk_bitmap); + return -ENOMEM; } static int pblk_line_mg_init(struct pblk *pblk) @@ -847,12 +875,14 @@ static int pblk_line_mg_init(struct pblk *pblk) INIT_LIST_HEAD(&l_mg->gc_mid_list); INIT_LIST_HEAD(&l_mg->gc_low_list); INIT_LIST_HEAD(&l_mg->gc_empty_list); + INIT_LIST_HEAD(&l_mg->gc_werr_list); INIT_LIST_HEAD(&l_mg->emeta_list); - l_mg->gc_lists[0] = &l_mg->gc_high_list; - l_mg->gc_lists[1] = &l_mg->gc_mid_list; - l_mg->gc_lists[2] = &l_mg->gc_low_list; + l_mg->gc_lists[0] = &l_mg->gc_werr_list; + l_mg->gc_lists[1] = &l_mg->gc_high_list; + l_mg->gc_lists[2] = &l_mg->gc_mid_list; + l_mg->gc_lists[3] = &l_mg->gc_low_list; spin_lock_init(&l_mg->free_lock); spin_lock_init(&l_mg->close_lock); @@ -1047,6 +1077,11 @@ static int pblk_lines_init(struct pblk *pblk) nr_free_chks += pblk_setup_line_meta(pblk, line, chunk_meta, i); } + if (!nr_free_chks) { + pr_err("pblk: too many bad blocks prevent for sane instance\n"); + return -EINTR; + } + pblk_set_provision(pblk, nr_free_chks); kfree(chunk_meta); @@ -1054,7 +1089,7 @@ static int pblk_lines_init(struct pblk *pblk) fail_free_lines: while (--i >= 0) - pblk_line_meta_free(&pblk->lines[i]); + pblk_line_meta_free(l_mg, &pblk->lines[i]); kfree(pblk->lines); fail_free_chunk_meta: kfree(chunk_meta); @@ -1110,23 +1145,25 @@ static void pblk_free(struct pblk *pblk) kfree(pblk); } -static void pblk_tear_down(struct pblk *pblk) +static void pblk_tear_down(struct pblk *pblk, bool graceful) { - pblk_pipeline_stop(pblk); + if (graceful) + __pblk_pipeline_flush(pblk); + __pblk_pipeline_stop(pblk); pblk_writer_stop(pblk); pblk_rb_sync_l2p(&pblk->rwb); pblk_rl_free(&pblk->rl); - pr_debug("pblk: consistent tear down\n"); + pr_debug("pblk: consistent tear down (graceful:%d)\n", graceful); } -static void pblk_exit(void *private) +static void pblk_exit(void *private, bool graceful) { struct pblk *pblk = private; down_write(&pblk_lock); - pblk_gc_exit(pblk); - pblk_tear_down(pblk); + pblk_gc_exit(pblk, graceful); + pblk_tear_down(pblk, graceful); #ifdef CONFIG_NVM_DEBUG pr_info("pblk exit: L2P CRC: %x\n", pblk_l2p_crc(pblk)); @@ -1175,6 +1212,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk, pblk->state = PBLK_STATE_RUNNING; pblk->gc.gc_enabled = 0; + spin_lock_init(&pblk->resubmit_lock); spin_lock_init(&pblk->trans_lock); spin_lock_init(&pblk->lock); @@ -1297,18 +1335,18 @@ static int __init pblk_module_init(void) { int ret; - pblk_bio_set = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!pblk_bio_set) - return -ENOMEM; + ret = bioset_init(&pblk_bio_set, BIO_POOL_SIZE, 0, 0); + if (ret) + return ret; ret = nvm_register_tgt_type(&tt_pblk); if (ret) - bioset_free(pblk_bio_set); + bioset_exit(&pblk_bio_set); return ret; } static void pblk_module_exit(void) { - bioset_free(pblk_bio_set); + bioset_exit(&pblk_bio_set); nvm_unregister_tgt_type(&tt_pblk); } diff --git a/drivers/lightnvm/pblk-map.c b/drivers/lightnvm/pblk-map.c index 20dbaa89c9df..953ca31dda68 100644 --- a/drivers/lightnvm/pblk-map.c +++ b/drivers/lightnvm/pblk-map.c @@ -18,11 +18,11 @@ #include "pblk.h" -static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry, - struct ppa_addr *ppa_list, - unsigned long *lun_bitmap, - struct pblk_sec_meta *meta_list, - unsigned int valid_secs) +static int pblk_map_page_data(struct pblk *pblk, unsigned int sentry, + struct ppa_addr *ppa_list, + unsigned long *lun_bitmap, + struct pblk_sec_meta *meta_list, + unsigned int valid_secs) { struct pblk_line *line = pblk_line_get_data(pblk); struct pblk_emeta *emeta; @@ -35,8 +35,14 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry, if (pblk_line_is_full(line)) { struct pblk_line *prev_line = line; + /* If we cannot allocate a new line, make sure to store metadata + * on current line and then fail + */ line = pblk_line_replace_data(pblk); pblk_line_close_meta(pblk, prev_line); + + if (!line) + return -EINTR; } emeta = line->emeta; @@ -74,6 +80,7 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry, } pblk_down_rq(pblk, ppa_list, nr_secs, lun_bitmap); + return 0; } void pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, @@ -87,8 +94,12 @@ void pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, for (i = off; i < rqd->nr_ppas; i += min) { map_secs = (i + min > valid_secs) ? (valid_secs % min) : min; - pblk_map_page_data(pblk, sentry + i, &rqd->ppa_list[i], - lun_bitmap, &meta_list[i], map_secs); + if (pblk_map_page_data(pblk, sentry + i, &rqd->ppa_list[i], + lun_bitmap, &meta_list[i], map_secs)) { + bio_put(rqd->bio); + pblk_free_rqd(pblk, rqd, PBLK_WRITE); + pblk_pipeline_stop(pblk); + } } } @@ -108,8 +119,12 @@ void pblk_map_erase_rq(struct pblk *pblk, struct nvm_rq *rqd, for (i = 0; i < rqd->nr_ppas; i += min) { map_secs = (i + min > valid_secs) ? (valid_secs % min) : min; - pblk_map_page_data(pblk, sentry + i, &rqd->ppa_list[i], - lun_bitmap, &meta_list[i], map_secs); + if (pblk_map_page_data(pblk, sentry + i, &rqd->ppa_list[i], + lun_bitmap, &meta_list[i], map_secs)) { + bio_put(rqd->bio); + pblk_free_rqd(pblk, rqd, PBLK_WRITE); + pblk_pipeline_stop(pblk); + } erase_lun = pblk_ppa_to_pos(geo, rqd->ppa_list[i]); diff --git a/drivers/lightnvm/pblk-rb.c b/drivers/lightnvm/pblk-rb.c index 52fdd85dbc97..00cd1f20a196 100644 --- a/drivers/lightnvm/pblk-rb.c +++ b/drivers/lightnvm/pblk-rb.c @@ -142,10 +142,9 @@ static void clean_wctx(struct pblk_w_ctx *w_ctx) { int flags; -try: flags = READ_ONCE(w_ctx->flags); - if (!(flags & PBLK_SUBMITTED_ENTRY)) - goto try; + WARN_ONCE(!(flags & PBLK_SUBMITTED_ENTRY), + "pblk: overwriting unsubmitted data\n"); /* Release flags on context. Protect from writes and reads */ smp_store_release(&w_ctx->flags, PBLK_WRITABLE_ENTRY); @@ -350,7 +349,7 @@ void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data, } static int pblk_rb_flush_point_set(struct pblk_rb *rb, struct bio *bio, - unsigned int pos) + unsigned int pos) { struct pblk_rb_entry *entry; unsigned int sync, flush_point; @@ -420,7 +419,7 @@ void pblk_rb_flush(struct pblk_rb *rb) if (pblk_rb_flush_point_set(rb, NULL, mem)) return; - pblk_write_should_kick(pblk); + pblk_write_kick(pblk); } static int pblk_rb_may_write_flush(struct pblk_rb *rb, unsigned int nr_entries, @@ -504,45 +503,6 @@ int pblk_rb_may_write_gc(struct pblk_rb *rb, unsigned int nr_entries, } /* - * The caller of this function must ensure that the backpointer will not - * overwrite the entries passed on the list. - */ -unsigned int pblk_rb_read_to_bio_list(struct pblk_rb *rb, struct bio *bio, - struct list_head *list, - unsigned int max) -{ - struct pblk_rb_entry *entry, *tentry; - struct page *page; - unsigned int read = 0; - int ret; - - list_for_each_entry_safe(entry, tentry, list, index) { - if (read > max) { - pr_err("pblk: too many entries on list\n"); - goto out; - } - - page = virt_to_page(entry->data); - if (!page) { - pr_err("pblk: could not allocate write bio page\n"); - goto out; - } - - ret = bio_add_page(bio, page, rb->seg_size, 0); - if (ret != rb->seg_size) { - pr_err("pblk: could not add page to write bio\n"); - goto out; - } - - list_del(&entry->index); - read++; - } - -out: - return read; -} - -/* * Read available entries on rb and add them to the given bio. To avoid a memory * copy, a page reference to the write buffer is used to be added to the bio. * diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c index 9eee10f69df0..18694694e5f0 100644 --- a/drivers/lightnvm/pblk-read.c +++ b/drivers/lightnvm/pblk-read.c @@ -39,10 +39,10 @@ static int pblk_read_from_cache(struct pblk *pblk, struct bio *bio, } static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd, - sector_t blba, unsigned long *read_bitmap) + struct bio *bio, sector_t blba, + unsigned long *read_bitmap) { struct pblk_sec_meta *meta_list = rqd->meta_list; - struct bio *bio = rqd->bio; struct ppa_addr ppas[PBLK_MAX_REQ_ADDRS]; int nr_secs = rqd->nr_ppas; bool advanced_bio = false; @@ -102,32 +102,69 @@ next: #endif } -static int pblk_submit_read_io(struct pblk *pblk, struct nvm_rq *rqd) + +static void pblk_read_check_seq(struct pblk *pblk, struct nvm_rq *rqd, + sector_t blba) { - int err; + struct pblk_sec_meta *meta_lba_list = rqd->meta_list; + int nr_lbas = rqd->nr_ppas; + int i; - err = pblk_submit_io(pblk, rqd); - if (err) - return NVM_IO_ERR; + for (i = 0; i < nr_lbas; i++) { + u64 lba = le64_to_cpu(meta_lba_list[i].lba); + + if (lba == ADDR_EMPTY) + continue; + + if (lba != blba + i) { +#ifdef CONFIG_NVM_DEBUG + struct ppa_addr *p; - return NVM_IO_OK; + p = (nr_lbas == 1) ? &rqd->ppa_list[i] : &rqd->ppa_addr; + print_ppa(&pblk->dev->geo, p, "seq", i); +#endif + pr_err("pblk: corrupted read LBA (%llu/%llu)\n", + lba, (u64)blba + i); + WARN_ON(1); + } + } } -static void pblk_read_check(struct pblk *pblk, struct nvm_rq *rqd, - sector_t blba) +/* + * There can be holes in the lba list. + */ +static void pblk_read_check_rand(struct pblk *pblk, struct nvm_rq *rqd, + u64 *lba_list, int nr_lbas) { - struct pblk_sec_meta *meta_list = rqd->meta_list; - int nr_lbas = rqd->nr_ppas; - int i; + struct pblk_sec_meta *meta_lba_list = rqd->meta_list; + int i, j; - for (i = 0; i < nr_lbas; i++) { - u64 lba = le64_to_cpu(meta_list[i].lba); + for (i = 0, j = 0; i < nr_lbas; i++) { + u64 lba = lba_list[i]; + u64 meta_lba; if (lba == ADDR_EMPTY) continue; - WARN(lba != blba + i, "pblk: corrupted read LBA\n"); + meta_lba = le64_to_cpu(meta_lba_list[j].lba); + + if (lba != meta_lba) { +#ifdef CONFIG_NVM_DEBUG + struct ppa_addr *p; + int nr_ppas = rqd->nr_ppas; + + p = (nr_ppas == 1) ? &rqd->ppa_list[j] : &rqd->ppa_addr; + print_ppa(&pblk->dev->geo, p, "seq", j); +#endif + pr_err("pblk: corrupted read LBA (%llu/%llu)\n", + lba, meta_lba); + WARN_ON(1); + } + + j++; } + + WARN_ONCE(j != rqd->nr_ppas, "pblk: corrupted random request\n"); } static void pblk_read_put_rqd_kref(struct pblk *pblk, struct nvm_rq *rqd) @@ -152,7 +189,6 @@ static void pblk_end_user_read(struct bio *bio) WARN_ONCE(bio->bi_status, "pblk: corrupted read bio\n"); #endif bio_endio(bio); - bio_put(bio); } static void __pblk_end_io_read(struct pblk *pblk, struct nvm_rq *rqd, @@ -160,23 +196,18 @@ static void __pblk_end_io_read(struct pblk *pblk, struct nvm_rq *rqd, { struct nvm_tgt_dev *dev = pblk->dev; struct pblk_g_ctx *r_ctx = nvm_rq_to_pdu(rqd); - struct bio *bio = rqd->bio; + struct bio *int_bio = rqd->bio; unsigned long start_time = r_ctx->start_time; generic_end_io_acct(dev->q, READ, &pblk->disk->part0, start_time); if (rqd->error) pblk_log_read_err(pblk, rqd); -#ifdef CONFIG_NVM_DEBUG - else - WARN_ONCE(bio->bi_status, "pblk: corrupted read error\n"); -#endif - pblk_read_check(pblk, rqd, r_ctx->lba); + pblk_read_check_seq(pblk, rqd, r_ctx->lba); - bio_put(bio); - if (r_ctx->private) - pblk_end_user_read((struct bio *)r_ctx->private); + if (int_bio) + bio_put(int_bio); if (put_line) pblk_read_put_rqd_kref(pblk, rqd); @@ -193,16 +224,19 @@ static void __pblk_end_io_read(struct pblk *pblk, struct nvm_rq *rqd, static void pblk_end_io_read(struct nvm_rq *rqd) { struct pblk *pblk = rqd->private; + struct pblk_g_ctx *r_ctx = nvm_rq_to_pdu(rqd); + struct bio *bio = (struct bio *)r_ctx->private; + pblk_end_user_read(bio); __pblk_end_io_read(pblk, rqd, true); } -static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd, - unsigned int bio_init_idx, - unsigned long *read_bitmap) +static int pblk_partial_read(struct pblk *pblk, struct nvm_rq *rqd, + struct bio *orig_bio, unsigned int bio_init_idx, + unsigned long *read_bitmap) { - struct bio *new_bio, *bio = rqd->bio; struct pblk_sec_meta *meta_list = rqd->meta_list; + struct bio *new_bio; struct bio_vec src_bv, dst_bv; void *ppa_ptr = NULL; void *src_p, *dst_p; @@ -219,11 +253,11 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd, new_bio = bio_alloc(GFP_KERNEL, nr_holes); if (pblk_bio_add_pages(pblk, new_bio, GFP_KERNEL, nr_holes)) - goto err; + goto fail_add_pages; if (nr_holes != new_bio->bi_vcnt) { pr_err("pblk: malformed bio\n"); - goto err; + goto fail; } for (i = 0; i < nr_secs; i++) @@ -246,7 +280,7 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd, if (ret) { bio_put(rqd->bio); pr_err("pblk: sync read IO submission failed\n"); - goto err; + goto fail; } if (rqd->error) { @@ -282,7 +316,7 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd, meta_list[hole].lba = lba_list_media[i]; src_bv = new_bio->bi_io_vec[i++]; - dst_bv = bio->bi_io_vec[bio_init_idx + hole]; + dst_bv = orig_bio->bi_io_vec[bio_init_idx + hole]; src_p = kmap_atomic(src_bv.bv_page); dst_p = kmap_atomic(dst_bv.bv_page); @@ -294,35 +328,33 @@ static int pblk_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd, kunmap_atomic(src_p); kunmap_atomic(dst_p); - mempool_free(src_bv.bv_page, pblk->page_bio_pool); + mempool_free(src_bv.bv_page, &pblk->page_bio_pool); hole = find_next_zero_bit(read_bitmap, nr_secs, hole + 1); } while (hole < nr_secs); bio_put(new_bio); - /* Complete the original bio and associated request */ - bio_endio(bio); - rqd->bio = bio; + /* restore original request */ + rqd->bio = NULL; rqd->nr_ppas = nr_secs; __pblk_end_io_read(pblk, rqd, false); - return NVM_IO_OK; - -err: - pr_err("pblk: failed to perform partial read\n"); + return NVM_IO_DONE; +fail: /* Free allocated pages in new bio */ - pblk_bio_free_pages(pblk, bio, 0, new_bio->bi_vcnt); + pblk_bio_free_pages(pblk, new_bio, 0, new_bio->bi_vcnt); +fail_add_pages: + pr_err("pblk: failed to perform partial read\n"); __pblk_end_io_read(pblk, rqd, false); return NVM_IO_ERR; } -static void pblk_read_rq(struct pblk *pblk, struct nvm_rq *rqd, +static void pblk_read_rq(struct pblk *pblk, struct nvm_rq *rqd, struct bio *bio, sector_t lba, unsigned long *read_bitmap) { struct pblk_sec_meta *meta_list = rqd->meta_list; - struct bio *bio = rqd->bio; struct ppa_addr ppa; pblk_lookup_l2p_seq(pblk, &ppa, lba, 1); @@ -386,14 +418,15 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio) rqd = pblk_alloc_rqd(pblk, PBLK_READ); rqd->opcode = NVM_OP_PREAD; - rqd->bio = bio; rqd->nr_ppas = nr_secs; + rqd->bio = NULL; /* cloned bio if needed */ rqd->private = pblk; rqd->end_io = pblk_end_io_read; r_ctx = nvm_rq_to_pdu(rqd); r_ctx->start_time = jiffies; r_ctx->lba = blba; + r_ctx->private = bio; /* original bio */ /* Save the index for this bio's start. This is needed in case * we need to fill a partial read. @@ -411,17 +444,15 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio) rqd->ppa_list = rqd->meta_list + pblk_dma_meta_size; rqd->dma_ppa_list = rqd->dma_meta_list + pblk_dma_meta_size; - pblk_read_ppalist_rq(pblk, rqd, blba, &read_bitmap); + pblk_read_ppalist_rq(pblk, rqd, bio, blba, &read_bitmap); } else { - pblk_read_rq(pblk, rqd, blba, &read_bitmap); + pblk_read_rq(pblk, rqd, bio, blba, &read_bitmap); } - bio_get(bio); if (bitmap_full(&read_bitmap, nr_secs)) { - bio_endio(bio); atomic_inc(&pblk->inflight_io); __pblk_end_io_read(pblk, rqd, false); - return NVM_IO_OK; + return NVM_IO_DONE; } /* All sectors are to be read from the device */ @@ -429,20 +460,17 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio) struct bio *int_bio = NULL; /* Clone read bio to deal with read errors internally */ - int_bio = bio_clone_fast(bio, GFP_KERNEL, pblk_bio_set); + int_bio = bio_clone_fast(bio, GFP_KERNEL, &pblk_bio_set); if (!int_bio) { pr_err("pblk: could not clone read bio\n"); goto fail_end_io; } rqd->bio = int_bio; - r_ctx->private = bio; - ret = pblk_submit_read_io(pblk, rqd); - if (ret) { + if (pblk_submit_io(pblk, rqd)) { pr_err("pblk: read IO submission failed\n"); - if (int_bio) - bio_put(int_bio); + ret = NVM_IO_ERR; goto fail_end_io; } @@ -452,7 +480,7 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio) /* The read bio request could be partially filled by the write buffer, * but there are some holes that need to be read from the drive. */ - return pblk_partial_read_bio(pblk, rqd, bio_init_idx, &read_bitmap); + return pblk_partial_read(pblk, rqd, bio, bio_init_idx, &read_bitmap); fail_rqd_free: pblk_free_rqd(pblk, rqd, PBLK_READ); @@ -585,6 +613,8 @@ int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq) goto err_free_bio; } + pblk_read_check_rand(pblk, &rqd, gc_rq->lba_list, gc_rq->nr_secs); + atomic_dec(&pblk->inflight_io); if (rqd.error) { diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index 3e079c2afa6e..598342833d0d 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -16,97 +16,6 @@ #include "pblk.h" -void pblk_submit_rec(struct work_struct *work) -{ - struct pblk_rec_ctx *recovery = - container_of(work, struct pblk_rec_ctx, ws_rec); - struct pblk *pblk = recovery->pblk; - struct nvm_rq *rqd = recovery->rqd; - struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd); - struct bio *bio; - unsigned int nr_rec_secs; - unsigned int pgs_read; - int ret; - - nr_rec_secs = bitmap_weight((unsigned long int *)&rqd->ppa_status, - NVM_MAX_VLBA); - - bio = bio_alloc(GFP_KERNEL, nr_rec_secs); - - bio->bi_iter.bi_sector = 0; - bio_set_op_attrs(bio, REQ_OP_WRITE, 0); - rqd->bio = bio; - rqd->nr_ppas = nr_rec_secs; - - pgs_read = pblk_rb_read_to_bio_list(&pblk->rwb, bio, &recovery->failed, - nr_rec_secs); - if (pgs_read != nr_rec_secs) { - pr_err("pblk: could not read recovery entries\n"); - goto err; - } - - if (pblk_setup_w_rec_rq(pblk, rqd, c_ctx)) { - pr_err("pblk: could not setup recovery request\n"); - goto err; - } - -#ifdef CONFIG_NVM_DEBUG - atomic_long_add(nr_rec_secs, &pblk->recov_writes); -#endif - - ret = pblk_submit_io(pblk, rqd); - if (ret) { - pr_err("pblk: I/O submission failed: %d\n", ret); - goto err; - } - - mempool_free(recovery, pblk->rec_pool); - return; - -err: - bio_put(bio); - pblk_free_rqd(pblk, rqd, PBLK_WRITE); -} - -int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx, - struct pblk_rec_ctx *recovery, u64 *comp_bits, - unsigned int comp) -{ - struct nvm_rq *rec_rqd; - struct pblk_c_ctx *rec_ctx; - int nr_entries = c_ctx->nr_valid + c_ctx->nr_padded; - - rec_rqd = pblk_alloc_rqd(pblk, PBLK_WRITE); - rec_ctx = nvm_rq_to_pdu(rec_rqd); - - /* Copy completion bitmap, but exclude the first X completed entries */ - bitmap_shift_right((unsigned long int *)&rec_rqd->ppa_status, - (unsigned long int *)comp_bits, - comp, NVM_MAX_VLBA); - - /* Save the context for the entries that need to be re-written and - * update current context with the completed entries. - */ - rec_ctx->sentry = pblk_rb_wrap_pos(&pblk->rwb, c_ctx->sentry + comp); - if (comp >= c_ctx->nr_valid) { - rec_ctx->nr_valid = 0; - rec_ctx->nr_padded = nr_entries - comp; - - c_ctx->nr_padded = comp - c_ctx->nr_valid; - } else { - rec_ctx->nr_valid = c_ctx->nr_valid - comp; - rec_ctx->nr_padded = c_ctx->nr_padded; - - c_ctx->nr_valid = comp; - c_ctx->nr_padded = 0; - } - - recovery->rqd = rec_rqd; - recovery->pblk = pblk; - - return 0; -} - int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta_buf) { u32 crc; @@ -865,18 +774,30 @@ static void pblk_recov_wa_counters(struct pblk *pblk, } static int pblk_line_was_written(struct pblk_line *line, - struct pblk_line_meta *lm) + struct pblk *pblk) { - int i; - int state_mask = NVM_CHK_ST_OFFLINE | NVM_CHK_ST_FREE; + struct pblk_line_meta *lm = &pblk->lm; + struct nvm_tgt_dev *dev = pblk->dev; + struct nvm_geo *geo = &dev->geo; + struct nvm_chk_meta *chunk; + struct ppa_addr bppa; + int smeta_blk; - for (i = 0; i < lm->blk_per_line; i++) { - if (!(line->chks[i].state & state_mask)) - return 1; - } + if (line->state == PBLK_LINESTATE_BAD) + return 0; - return 0; + smeta_blk = find_first_zero_bit(line->blk_bitmap, lm->blk_per_line); + if (smeta_blk >= lm->blk_per_line) + return 0; + + bppa = pblk->luns[smeta_blk].bppa; + chunk = &line->chks[pblk_ppa_to_pos(geo, bppa)]; + + if (chunk->state & NVM_CHK_ST_FREE) + return 0; + + return 1; } struct pblk_line *pblk_recov_l2p(struct pblk *pblk) @@ -915,7 +836,7 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk) line->lun_bitmap = ((void *)(smeta_buf)) + sizeof(struct line_smeta); - if (!pblk_line_was_written(line, lm)) + if (!pblk_line_was_written(line, pblk)) continue; /* Lines that cannot be read are assumed as not written here */ diff --git a/drivers/lightnvm/pblk-rl.c b/drivers/lightnvm/pblk-rl.c index 883a7113b19d..6a0616a6fcaf 100644 --- a/drivers/lightnvm/pblk-rl.c +++ b/drivers/lightnvm/pblk-rl.c @@ -73,6 +73,16 @@ void pblk_rl_user_in(struct pblk_rl *rl, int nr_entries) pblk_rl_kick_u_timer(rl); } +void pblk_rl_werr_line_in(struct pblk_rl *rl) +{ + atomic_inc(&rl->werr_lines); +} + +void pblk_rl_werr_line_out(struct pblk_rl *rl) +{ + atomic_dec(&rl->werr_lines); +} + void pblk_rl_gc_in(struct pblk_rl *rl, int nr_entries) { atomic_add(nr_entries, &rl->rb_gc_cnt); @@ -99,11 +109,21 @@ static void __pblk_rl_update_rates(struct pblk_rl *rl, { struct pblk *pblk = container_of(rl, struct pblk, rl); int max = rl->rb_budget; + int werr_gc_needed = atomic_read(&rl->werr_lines); if (free_blocks >= rl->high) { - rl->rb_user_max = max; - rl->rb_gc_max = 0; - rl->rb_state = PBLK_RL_HIGH; + if (werr_gc_needed) { + /* Allocate a small budget for recovering + * lines with write errors + */ + rl->rb_gc_max = 1 << rl->rb_windows_pw; + rl->rb_user_max = max - rl->rb_gc_max; + rl->rb_state = PBLK_RL_WERR; + } else { + rl->rb_user_max = max; + rl->rb_gc_max = 0; + rl->rb_state = PBLK_RL_OFF; + } } else if (free_blocks < rl->high) { int shift = rl->high_pw - rl->rb_windows_pw; int user_windows = free_blocks >> shift; @@ -124,7 +144,7 @@ static void __pblk_rl_update_rates(struct pblk_rl *rl, rl->rb_state = PBLK_RL_LOW; } - if (rl->rb_state == (PBLK_RL_MID | PBLK_RL_LOW)) + if (rl->rb_state != PBLK_RL_OFF) pblk_gc_should_start(pblk); else pblk_gc_should_stop(pblk); @@ -221,6 +241,7 @@ void pblk_rl_init(struct pblk_rl *rl, int budget) atomic_set(&rl->rb_user_cnt, 0); atomic_set(&rl->rb_gc_cnt, 0); atomic_set(&rl->rb_space, -1); + atomic_set(&rl->werr_lines, 0); timer_setup(&rl->u_timer, pblk_rl_u_timer, 0); diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c index e61909af23a5..88a0a7c407aa 100644 --- a/drivers/lightnvm/pblk-sysfs.c +++ b/drivers/lightnvm/pblk-sysfs.c @@ -173,6 +173,8 @@ static ssize_t pblk_sysfs_lines(struct pblk *pblk, char *page) int free_line_cnt = 0, closed_line_cnt = 0, emeta_line_cnt = 0; int d_line_cnt = 0, l_line_cnt = 0; int gc_full = 0, gc_high = 0, gc_mid = 0, gc_low = 0, gc_empty = 0; + int gc_werr = 0; + int bad = 0, cor = 0; int msecs = 0, cur_sec = 0, vsc = 0, sec_in_line = 0; int map_weight = 0, meta_weight = 0; @@ -237,6 +239,15 @@ static ssize_t pblk_sysfs_lines(struct pblk *pblk, char *page) gc_empty++; } + list_for_each_entry(line, &l_mg->gc_werr_list, list) { + if (line->type == PBLK_LINETYPE_DATA) + d_line_cnt++; + else if (line->type == PBLK_LINETYPE_LOG) + l_line_cnt++; + closed_line_cnt++; + gc_werr++; + } + list_for_each_entry(line, &l_mg->bad_list, list) bad++; list_for_each_entry(line, &l_mg->corrupt_list, list) @@ -275,8 +286,8 @@ static ssize_t pblk_sysfs_lines(struct pblk *pblk, char *page) l_mg->nr_lines); sz += snprintf(page + sz, PAGE_SIZE - sz, - "GC: full:%d, high:%d, mid:%d, low:%d, empty:%d, queue:%d\n", - gc_full, gc_high, gc_mid, gc_low, gc_empty, + "GC: full:%d, high:%d, mid:%d, low:%d, empty:%d, werr: %d, queue:%d\n", + gc_full, gc_high, gc_mid, gc_low, gc_empty, gc_werr, atomic_read(&pblk->gc.read_inflight_gc)); sz += snprintf(page + sz, PAGE_SIZE - sz, diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c index 3e6f1ebd743a..f353e52941f5 100644 --- a/drivers/lightnvm/pblk-write.c +++ b/drivers/lightnvm/pblk-write.c @@ -103,68 +103,150 @@ retry: pblk_rb_sync_end(&pblk->rwb, &flags); } -/* When a write fails, we are not sure whether the block has grown bad or a page - * range is more susceptible to write errors. If a high number of pages fail, we - * assume that the block is bad and we mark it accordingly. In all cases, we - * remap and resubmit the failed entries as fast as possible; if a flush is - * waiting on a completion, the whole stack would stall otherwise. - */ -static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd) +/* Map remaining sectors in chunk, starting from ppa */ +static void pblk_map_remaining(struct pblk *pblk, struct ppa_addr *ppa) { - void *comp_bits = &rqd->ppa_status; - struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd); - struct pblk_rec_ctx *recovery; - struct ppa_addr *ppa_list = rqd->ppa_list; - int nr_ppas = rqd->nr_ppas; - unsigned int c_entries; - int bit, ret; + struct nvm_tgt_dev *dev = pblk->dev; + struct nvm_geo *geo = &dev->geo; + struct pblk_line *line; + struct ppa_addr map_ppa = *ppa; + u64 paddr; + int done = 0; - if (unlikely(nr_ppas == 1)) - ppa_list = &rqd->ppa_addr; + line = &pblk->lines[pblk_ppa_to_line(*ppa)]; + spin_lock(&line->lock); - recovery = mempool_alloc(pblk->rec_pool, GFP_ATOMIC); + while (!done) { + paddr = pblk_dev_ppa_to_line_addr(pblk, map_ppa); - INIT_LIST_HEAD(&recovery->failed); + if (!test_and_set_bit(paddr, line->map_bitmap)) + line->left_msecs--; - bit = -1; - while ((bit = find_next_bit(comp_bits, nr_ppas, bit + 1)) < nr_ppas) { - struct pblk_rb_entry *entry; - struct ppa_addr ppa; + if (!test_and_set_bit(paddr, line->invalid_bitmap)) + le32_add_cpu(line->vsc, -1); - /* Logic error */ - if (bit > c_ctx->nr_valid) { - WARN_ONCE(1, "pblk: corrupted write request\n"); - mempool_free(recovery, pblk->rec_pool); - goto out; + if (geo->version == NVM_OCSSD_SPEC_12) { + map_ppa.ppa++; + if (map_ppa.g.pg == geo->num_pg) + done = 1; + } else { + map_ppa.m.sec++; + if (map_ppa.m.sec == geo->clba) + done = 1; } + } - ppa = ppa_list[bit]; - entry = pblk_rb_sync_scan_entry(&pblk->rwb, &ppa); - if (!entry) { - pr_err("pblk: could not scan entry on write failure\n"); - mempool_free(recovery, pblk->rec_pool); - goto out; - } + line->w_err_gc->has_write_err = 1; + spin_unlock(&line->lock); +} - /* The list is filled first and emptied afterwards. No need for - * protecting it with a lock +static void pblk_prepare_resubmit(struct pblk *pblk, unsigned int sentry, + unsigned int nr_entries) +{ + struct pblk_rb *rb = &pblk->rwb; + struct pblk_rb_entry *entry; + struct pblk_line *line; + struct pblk_w_ctx *w_ctx; + struct ppa_addr ppa_l2p; + int flags; + unsigned int pos, i; + + spin_lock(&pblk->trans_lock); + pos = sentry; + for (i = 0; i < nr_entries; i++) { + entry = &rb->entries[pos]; + w_ctx = &entry->w_ctx; + + /* Check if the lba has been overwritten */ + ppa_l2p = pblk_trans_map_get(pblk, w_ctx->lba); + if (!pblk_ppa_comp(ppa_l2p, entry->cacheline)) + w_ctx->lba = ADDR_EMPTY; + + /* Mark up the entry as submittable again */ + flags = READ_ONCE(w_ctx->flags); + flags |= PBLK_WRITTEN_DATA; + /* Release flags on write context. Protect from writes */ + smp_store_release(&w_ctx->flags, flags); + + /* Decrese the reference count to the line as we will + * re-map these entries */ - list_add_tail(&entry->index, &recovery->failed); + line = &pblk->lines[pblk_ppa_to_line(w_ctx->ppa)]; + kref_put(&line->ref, pblk_line_put); + + pos = (pos + 1) & (rb->nr_entries - 1); } + spin_unlock(&pblk->trans_lock); +} - c_entries = find_first_bit(comp_bits, nr_ppas); - ret = pblk_recov_setup_rq(pblk, c_ctx, recovery, comp_bits, c_entries); - if (ret) { - pr_err("pblk: could not recover from write failure\n"); - mempool_free(recovery, pblk->rec_pool); - goto out; +static void pblk_queue_resubmit(struct pblk *pblk, struct pblk_c_ctx *c_ctx) +{ + struct pblk_c_ctx *r_ctx; + + r_ctx = kzalloc(sizeof(struct pblk_c_ctx), GFP_KERNEL); + if (!r_ctx) + return; + + r_ctx->lun_bitmap = NULL; + r_ctx->sentry = c_ctx->sentry; + r_ctx->nr_valid = c_ctx->nr_valid; + r_ctx->nr_padded = c_ctx->nr_padded; + + spin_lock(&pblk->resubmit_lock); + list_add_tail(&r_ctx->list, &pblk->resubmit_list); + spin_unlock(&pblk->resubmit_lock); + +#ifdef CONFIG_NVM_DEBUG + atomic_long_add(c_ctx->nr_valid, &pblk->recov_writes); +#endif +} + +static void pblk_submit_rec(struct work_struct *work) +{ + struct pblk_rec_ctx *recovery = + container_of(work, struct pblk_rec_ctx, ws_rec); + struct pblk *pblk = recovery->pblk; + struct nvm_rq *rqd = recovery->rqd; + struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd); + struct ppa_addr *ppa_list; + + pblk_log_write_err(pblk, rqd); + + if (rqd->nr_ppas == 1) + ppa_list = &rqd->ppa_addr; + else + ppa_list = rqd->ppa_list; + + pblk_map_remaining(pblk, ppa_list); + pblk_queue_resubmit(pblk, c_ctx); + + pblk_up_rq(pblk, rqd->ppa_list, rqd->nr_ppas, c_ctx->lun_bitmap); + if (c_ctx->nr_padded) + pblk_bio_free_pages(pblk, rqd->bio, c_ctx->nr_valid, + c_ctx->nr_padded); + bio_put(rqd->bio); + pblk_free_rqd(pblk, rqd, PBLK_WRITE); + mempool_free(recovery, &pblk->rec_pool); + + atomic_dec(&pblk->inflight_io); +} + + +static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd) +{ + struct pblk_rec_ctx *recovery; + + recovery = mempool_alloc(&pblk->rec_pool, GFP_ATOMIC); + if (!recovery) { + pr_err("pblk: could not allocate recovery work\n"); + return; } + recovery->pblk = pblk; + recovery->rqd = rqd; + INIT_WORK(&recovery->ws_rec, pblk_submit_rec); queue_work(pblk->close_wq, &recovery->ws_rec); - -out: - pblk_complete_write(pblk, rqd, c_ctx); } static void pblk_end_io_write(struct nvm_rq *rqd) @@ -173,8 +255,8 @@ static void pblk_end_io_write(struct nvm_rq *rqd) struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd); if (rqd->error) { - pblk_log_write_err(pblk, rqd); - return pblk_end_w_fail(pblk, rqd); + pblk_end_w_fail(pblk, rqd); + return; } #ifdef CONFIG_NVM_DEBUG else @@ -198,6 +280,7 @@ static void pblk_end_io_write_meta(struct nvm_rq *rqd) if (rqd->error) { pblk_log_write_err(pblk, rqd); pr_err("pblk: metadata I/O failed. Line %d\n", line->id); + line->w_err_gc->has_write_err = 1; } sync = atomic_add_return(rqd->nr_ppas, &emeta->sync); @@ -266,31 +349,6 @@ static int pblk_setup_w_rq(struct pblk *pblk, struct nvm_rq *rqd, return 0; } -int pblk_setup_w_rec_rq(struct pblk *pblk, struct nvm_rq *rqd, - struct pblk_c_ctx *c_ctx) -{ - struct pblk_line_meta *lm = &pblk->lm; - unsigned long *lun_bitmap; - int ret; - - lun_bitmap = kzalloc(lm->lun_bitmap_len, GFP_KERNEL); - if (!lun_bitmap) - return -ENOMEM; - - c_ctx->lun_bitmap = lun_bitmap; - - ret = pblk_alloc_w_rq(pblk, rqd, rqd->nr_ppas, pblk_end_io_write); - if (ret) - return ret; - - pblk_map_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, c_ctx->nr_valid, 0); - - rqd->ppa_status = (u64)0; - rqd->flags = pblk_set_progr_mode(pblk, PBLK_WRITE); - - return ret; -} - static int pblk_calc_secs_to_sync(struct pblk *pblk, unsigned int secs_avail, unsigned int secs_to_flush) { @@ -339,6 +397,7 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line) bio = pblk_bio_map_addr(pblk, data, rq_ppas, rq_len, l_mg->emeta_alloc_type, GFP_KERNEL); if (IS_ERR(bio)) { + pr_err("pblk: failed to map emeta io"); ret = PTR_ERR(bio); goto fail_free_rqd; } @@ -515,26 +574,54 @@ static int pblk_submit_write(struct pblk *pblk) unsigned int secs_avail, secs_to_sync, secs_to_com; unsigned int secs_to_flush; unsigned long pos; + unsigned int resubmit; - /* If there are no sectors in the cache, flushes (bios without data) - * will be cleared on the cache threads - */ - secs_avail = pblk_rb_read_count(&pblk->rwb); - if (!secs_avail) - return 1; - - secs_to_flush = pblk_rb_flush_point_count(&pblk->rwb); - if (!secs_to_flush && secs_avail < pblk->min_write_pgs) - return 1; - - secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, secs_to_flush); - if (secs_to_sync > pblk->max_write_pgs) { - pr_err("pblk: bad buffer sync calculation\n"); - return 1; - } + spin_lock(&pblk->resubmit_lock); + resubmit = !list_empty(&pblk->resubmit_list); + spin_unlock(&pblk->resubmit_lock); + + /* Resubmit failed writes first */ + if (resubmit) { + struct pblk_c_ctx *r_ctx; + + spin_lock(&pblk->resubmit_lock); + r_ctx = list_first_entry(&pblk->resubmit_list, + struct pblk_c_ctx, list); + list_del(&r_ctx->list); + spin_unlock(&pblk->resubmit_lock); + + secs_avail = r_ctx->nr_valid; + pos = r_ctx->sentry; + + pblk_prepare_resubmit(pblk, pos, secs_avail); + secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, + secs_avail); - secs_to_com = (secs_to_sync > secs_avail) ? secs_avail : secs_to_sync; - pos = pblk_rb_read_commit(&pblk->rwb, secs_to_com); + kfree(r_ctx); + } else { + /* If there are no sectors in the cache, + * flushes (bios without data) will be cleared on + * the cache threads + */ + secs_avail = pblk_rb_read_count(&pblk->rwb); + if (!secs_avail) + return 1; + + secs_to_flush = pblk_rb_flush_point_count(&pblk->rwb); + if (!secs_to_flush && secs_avail < pblk->min_write_pgs) + return 1; + + secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, + secs_to_flush); + if (secs_to_sync > pblk->max_write_pgs) { + pr_err("pblk: bad buffer sync calculation\n"); + return 1; + } + + secs_to_com = (secs_to_sync > secs_avail) ? + secs_avail : secs_to_sync; + pos = pblk_rb_read_commit(&pblk->rwb, secs_to_com); + } bio = bio_alloc(GFP_KERNEL, secs_to_sync); diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 9c682acfc5d1..34cc1d64a9d4 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -89,12 +89,14 @@ struct pblk_sec_meta { /* The number of GC lists and the rate-limiter states go together. This way the * rate-limiter can dictate how much GC is needed based on resource utilization. */ -#define PBLK_GC_NR_LISTS 3 +#define PBLK_GC_NR_LISTS 4 enum { - PBLK_RL_HIGH = 1, - PBLK_RL_MID = 2, - PBLK_RL_LOW = 3, + PBLK_RL_OFF = 0, + PBLK_RL_WERR = 1, + PBLK_RL_HIGH = 2, + PBLK_RL_MID = 3, + PBLK_RL_LOW = 4 }; #define pblk_dma_meta_size (sizeof(struct pblk_sec_meta) * PBLK_MAX_REQ_ADDRS) @@ -128,7 +130,6 @@ struct pblk_pad_rq { struct pblk_rec_ctx { struct pblk *pblk; struct nvm_rq *rqd; - struct list_head failed; struct work_struct ws_rec; }; @@ -279,6 +280,8 @@ struct pblk_rl { int rb_user_active; int rb_gc_active; + atomic_t werr_lines; /* Number of write error lines that needs gc */ + struct timer_list u_timer; unsigned long long nr_secs; @@ -312,6 +315,7 @@ enum { PBLK_LINEGC_MID = 23, PBLK_LINEGC_HIGH = 24, PBLK_LINEGC_FULL = 25, + PBLK_LINEGC_WERR = 26 }; #define PBLK_MAGIC 0x70626c6b /*pblk*/ @@ -413,6 +417,11 @@ struct pblk_smeta { struct line_smeta *buf; /* smeta buffer in persistent format */ }; +struct pblk_w_err_gc { + int has_write_err; + __le64 *lba_list; +}; + struct pblk_line { struct pblk *pblk; unsigned int id; /* Line number corresponds to the @@ -458,6 +467,8 @@ struct pblk_line { struct kref ref; /* Write buffer L2P references */ + struct pblk_w_err_gc *w_err_gc; /* Write error gc recovery metadata */ + spinlock_t lock; /* Necessary for invalid_bitmap only */ }; @@ -489,6 +500,8 @@ struct pblk_line_mgmt { struct list_head gc_mid_list; /* Full lines ready to GC, mid isc */ struct list_head gc_low_list; /* Full lines ready to GC, low isc */ + struct list_head gc_werr_list; /* Write err recovery list */ + struct list_head gc_full_list; /* Full lines ready to GC, no valid */ struct list_head gc_empty_list; /* Full lines close, all valid */ @@ -664,12 +677,15 @@ struct pblk { struct list_head compl_list; - mempool_t *page_bio_pool; - mempool_t *gen_ws_pool; - mempool_t *rec_pool; - mempool_t *r_rq_pool; - mempool_t *w_rq_pool; - mempool_t *e_rq_pool; + spinlock_t resubmit_lock; /* Resubmit list lock */ + struct list_head resubmit_list; /* Resubmit list for failed writes*/ + + mempool_t page_bio_pool; + mempool_t gen_ws_pool; + mempool_t rec_pool; + mempool_t r_rq_pool; + mempool_t w_rq_pool; + mempool_t e_rq_pool; struct workqueue_struct *close_wq; struct workqueue_struct *bb_wq; @@ -713,9 +729,6 @@ void pblk_rb_sync_l2p(struct pblk_rb *rb); unsigned int pblk_rb_read_to_bio(struct pblk_rb *rb, struct nvm_rq *rqd, unsigned int pos, unsigned int nr_entries, unsigned int count); -unsigned int pblk_rb_read_to_bio_list(struct pblk_rb *rb, struct bio *bio, - struct list_head *list, - unsigned int max); int pblk_rb_copy_to_bio(struct pblk_rb *rb, struct bio *bio, sector_t lba, struct ppa_addr ppa, int bio_iter, bool advanced_bio); unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int entries); @@ -766,11 +779,13 @@ struct pblk_line *pblk_line_get_data(struct pblk *pblk); struct pblk_line *pblk_line_get_erase(struct pblk *pblk); int pblk_line_erase(struct pblk *pblk, struct pblk_line *line); int pblk_line_is_full(struct pblk_line *line); -void pblk_line_free(struct pblk *pblk, struct pblk_line *line); +void pblk_line_free(struct pblk_line *line); void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line); void pblk_line_close(struct pblk *pblk, struct pblk_line *line); void pblk_line_close_ws(struct work_struct *work); void pblk_pipeline_stop(struct pblk *pblk); +void __pblk_pipeline_stop(struct pblk *pblk); +void __pblk_pipeline_flush(struct pblk *pblk); void pblk_gen_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv, void (*work)(struct work_struct *), gfp_t gfp_mask, struct workqueue_struct *wq); @@ -794,7 +809,6 @@ void pblk_down_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas, void pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas); void pblk_up_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas, unsigned long *lun_bitmap); -void pblk_end_io_sync(struct nvm_rq *rqd); int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags, int nr_pages); void pblk_bio_free_pages(struct pblk *pblk, struct bio *bio, int off, @@ -837,23 +851,20 @@ void pblk_map_rq(struct pblk *pblk, struct nvm_rq *rqd, unsigned int sentry, int pblk_write_ts(void *data); void pblk_write_timer_fn(struct timer_list *t); void pblk_write_should_kick(struct pblk *pblk); +void pblk_write_kick(struct pblk *pblk); /* * pblk read path */ -extern struct bio_set *pblk_bio_set; +extern struct bio_set pblk_bio_set; int pblk_submit_read(struct pblk *pblk, struct bio *bio); int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq); /* * pblk recovery */ -void pblk_submit_rec(struct work_struct *work); struct pblk_line *pblk_recov_l2p(struct pblk *pblk); int pblk_recov_pad(struct pblk *pblk); int pblk_recov_check_emeta(struct pblk *pblk, struct line_emeta *emeta); -int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx, - struct pblk_rec_ctx *recovery, u64 *comp_bits, - unsigned int comp); /* * pblk gc @@ -864,7 +875,7 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx, #define PBLK_GC_RSV_LINE 1 /* Reserved lines for GC */ int pblk_gc_init(struct pblk *pblk); -void pblk_gc_exit(struct pblk *pblk); +void pblk_gc_exit(struct pblk *pblk, bool graceful); void pblk_gc_should_start(struct pblk *pblk); void pblk_gc_should_stop(struct pblk *pblk); void pblk_gc_should_kick(struct pblk *pblk); @@ -894,6 +905,9 @@ void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line, bool used); int pblk_rl_is_limit(struct pblk_rl *rl); +void pblk_rl_werr_line_in(struct pblk_rl *rl); +void pblk_rl_werr_line_out(struct pblk_rl *rl); + /* * pblk sysfs */ diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 433dbeddfcf9..6663893f41c4 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -191,10 +191,10 @@ static int init_pmu(void); static void pmu_start(void); static irqreturn_t via_pmu_interrupt(int irq, void *arg); static irqreturn_t gpio1_interrupt(int irq, void *arg); -static const struct file_operations pmu_info_proc_fops; -static const struct file_operations pmu_irqstats_proc_fops; +static int pmu_info_proc_show(struct seq_file *m, void *v); +static int pmu_irqstats_proc_show(struct seq_file *m, void *v); +static int pmu_battery_proc_show(struct seq_file *m, void *v); static void pmu_pass_intr(unsigned char *data, int len); -static const struct file_operations pmu_battery_proc_fops; static const struct file_operations pmu_options_proc_fops; #ifdef CONFIG_ADB @@ -511,13 +511,15 @@ static int __init via_pmu_dev_init(void) for (i=0; i<pmu_battery_count; i++) { char title[16]; sprintf(title, "battery_%ld", i); - proc_pmu_batt[i] = proc_create_data(title, 0, proc_pmu_root, - &pmu_battery_proc_fops, (void *)i); + proc_pmu_batt[i] = proc_create_single_data(title, 0, + proc_pmu_root, pmu_battery_proc_show, + (void *)i); } - proc_pmu_info = proc_create("info", 0, proc_pmu_root, &pmu_info_proc_fops); - proc_pmu_irqstats = proc_create("interrupts", 0, proc_pmu_root, - &pmu_irqstats_proc_fops); + proc_pmu_info = proc_create_single("info", 0, proc_pmu_root, + pmu_info_proc_show); + proc_pmu_irqstats = proc_create_single("interrupts", 0, + proc_pmu_root, pmu_irqstats_proc_show); proc_pmu_options = proc_create("options", 0600, proc_pmu_root, &pmu_options_proc_fops); } @@ -811,19 +813,6 @@ static int pmu_info_proc_show(struct seq_file *m, void *v) return 0; } -static int pmu_info_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pmu_info_proc_show, NULL); -} - -static const struct file_operations pmu_info_proc_fops = { - .owner = THIS_MODULE, - .open = pmu_info_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pmu_irqstats_proc_show(struct seq_file *m, void *v) { int i; @@ -848,19 +837,6 @@ static int pmu_irqstats_proc_show(struct seq_file *m, void *v) return 0; } -static int pmu_irqstats_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pmu_irqstats_proc_show, NULL); -} - -static const struct file_operations pmu_irqstats_proc_fops = { - .owner = THIS_MODULE, - .open = pmu_irqstats_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pmu_battery_proc_show(struct seq_file *m, void *v) { long batnum = (long)m->private; @@ -875,19 +851,6 @@ static int pmu_battery_proc_show(struct seq_file *m, void *v) return 0; } -static int pmu_battery_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pmu_battery_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations pmu_battery_proc_fops = { - .owner = THIS_MODULE, - .open = pmu_battery_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pmu_options_proc_show(struct seq_file *m, void *v) { #if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC32) diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 3a0cfb237af9..d6bf294f3907 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -269,7 +269,7 @@ struct bcache_device { atomic_t *stripe_sectors_dirty; unsigned long *full_dirty_stripes; - struct bio_set *bio_split; + struct bio_set bio_split; unsigned data_csum:1; @@ -345,6 +345,7 @@ struct cached_dev { struct keybuf writeback_keys; + struct task_struct *status_update_thread; /* * Order the write-half of writeback operations strongly in dispatch * order. (Maintain LBA order; don't allow reads completing out of @@ -392,6 +393,7 @@ struct cached_dev { #define DEFAULT_CACHED_DEV_ERROR_LIMIT 64 atomic_t io_errors; unsigned error_limit; + unsigned offline_seconds; char backing_dev_name[BDEVNAME_SIZE]; }; @@ -528,9 +530,9 @@ struct cache_set { struct closure sb_write; struct semaphore sb_write_mutex; - mempool_t *search; - mempool_t *bio_meta; - struct bio_set *bio_split; + mempool_t search; + mempool_t bio_meta; + struct bio_set bio_split; /* For the btree cache */ struct shrinker shrink; @@ -655,7 +657,7 @@ struct cache_set { * A btree node on disk could have too many bsets for an iterator to fit * on the stack - have to dynamically allocate them */ - mempool_t *fill_iter; + mempool_t fill_iter; struct bset_sort_state sort; @@ -956,8 +958,6 @@ void bch_prio_write(struct cache *); void bch_write_bdev_super(struct cached_dev *, struct closure *); extern struct workqueue_struct *bcache_wq; -extern const char * const bch_cache_modes[]; -extern const char * const bch_stop_on_failure_modes[]; extern struct mutex bch_register_lock; extern struct list_head bch_cache_sets; diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c index 579c696a5fe0..f3403b45bc28 100644 --- a/drivers/md/bcache/bset.c +++ b/drivers/md/bcache/bset.c @@ -1118,8 +1118,7 @@ struct bkey *bch_btree_iter_next_filter(struct btree_iter *iter, void bch_bset_sort_state_free(struct bset_sort_state *state) { - if (state->pool) - mempool_destroy(state->pool); + mempool_exit(&state->pool); } int bch_bset_sort_state_init(struct bset_sort_state *state, unsigned page_order) @@ -1129,11 +1128,7 @@ int bch_bset_sort_state_init(struct bset_sort_state *state, unsigned page_order) state->page_order = page_order; state->crit_factor = int_sqrt(1 << page_order); - state->pool = mempool_create_page_pool(1, page_order); - if (!state->pool) - return -ENOMEM; - - return 0; + return mempool_init_page_pool(&state->pool, 1, page_order); } EXPORT_SYMBOL(bch_bset_sort_state_init); @@ -1191,7 +1186,7 @@ static void __btree_sort(struct btree_keys *b, struct btree_iter *iter, BUG_ON(order > state->page_order); - outp = mempool_alloc(state->pool, GFP_NOIO); + outp = mempool_alloc(&state->pool, GFP_NOIO); out = page_address(outp); used_mempool = true; order = state->page_order; @@ -1220,7 +1215,7 @@ static void __btree_sort(struct btree_keys *b, struct btree_iter *iter, } if (used_mempool) - mempool_free(virt_to_page(out), state->pool); + mempool_free(virt_to_page(out), &state->pool); else free_pages((unsigned long) out, order); diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h index 0c24280f3b98..b867f2200495 100644 --- a/drivers/md/bcache/bset.h +++ b/drivers/md/bcache/bset.h @@ -347,7 +347,7 @@ static inline struct bkey *bch_bset_search(struct btree_keys *b, /* Sorting */ struct bset_sort_state { - mempool_t *pool; + mempool_t pool; unsigned page_order; unsigned crit_factor; diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 17936b2dc7d6..2a0968c04e21 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -204,7 +204,7 @@ void bch_btree_node_read_done(struct btree *b) struct bset *i = btree_bset_first(b); struct btree_iter *iter; - iter = mempool_alloc(b->c->fill_iter, GFP_NOIO); + iter = mempool_alloc(&b->c->fill_iter, GFP_NOIO); iter->size = b->c->sb.bucket_size / b->c->sb.block_size; iter->used = 0; @@ -271,7 +271,7 @@ void bch_btree_node_read_done(struct btree *b) bch_bset_init_next(&b->keys, write_block(b), bset_magic(&b->c->sb)); out: - mempool_free(iter, b->c->fill_iter); + mempool_free(iter, &b->c->fill_iter); return; err: set_btree_node_io_error(b); diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c index 2ddf8515e6a5..9612873afee2 100644 --- a/drivers/md/bcache/io.c +++ b/drivers/md/bcache/io.c @@ -17,12 +17,12 @@ void bch_bbio_free(struct bio *bio, struct cache_set *c) { struct bbio *b = container_of(bio, struct bbio, bio); - mempool_free(b, c->bio_meta); + mempool_free(b, &c->bio_meta); } struct bio *bch_bbio_alloc(struct cache_set *c) { - struct bbio *b = mempool_alloc(c->bio_meta, GFP_NOIO); + struct bbio *b = mempool_alloc(&c->bio_meta, GFP_NOIO); struct bio *bio = &b->bio; bio_init(bio, bio->bi_inline_vecs, bucket_pages(c)); diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 8e3e8655ed63..ae67f5fa8047 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -213,7 +213,7 @@ static void bch_data_insert_start(struct closure *cl) do { unsigned i; struct bkey *k; - struct bio_set *split = op->c->bio_split; + struct bio_set *split = &op->c->bio_split; /* 1 for the device pointer and 1 for the chksum */ if (bch_keylist_realloc(&op->insert_keys, @@ -548,7 +548,7 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k) n = bio_next_split(bio, min_t(uint64_t, INT_MAX, KEY_OFFSET(k) - bio->bi_iter.bi_sector), - GFP_NOIO, s->d->bio_split); + GFP_NOIO, &s->d->bio_split); bio_key = &container_of(n, struct bbio, bio)->key; bch_bkey_copy_single_ptr(bio_key, k, ptr); @@ -707,7 +707,7 @@ static void search_free(struct closure *cl) bio_complete(s); closure_debug_destroy(cl); - mempool_free(s, s->d->c->search); + mempool_free(s, &s->d->c->search); } static inline struct search *search_alloc(struct bio *bio, @@ -715,7 +715,7 @@ static inline struct search *search_alloc(struct bio *bio, { struct search *s; - s = mempool_alloc(d->c->search, GFP_NOIO); + s = mempool_alloc(&d->c->search, GFP_NOIO); closure_init(&s->cl, NULL); do_bio_hook(s, bio, request_endio); @@ -864,7 +864,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s, s->cache_missed = 1; if (s->cache_miss || s->iop.bypass) { - miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split); + miss = bio_next_split(bio, sectors, GFP_NOIO, &s->d->bio_split); ret = miss == bio ? MAP_DONE : MAP_CONTINUE; goto out_submit; } @@ -887,14 +887,14 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s, s->iop.replace = true; - miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split); + miss = bio_next_split(bio, sectors, GFP_NOIO, &s->d->bio_split); /* btree_search_recurse()'s btree iterator is no good anymore */ ret = miss == bio ? MAP_DONE : -EINTR; cache_bio = bio_alloc_bioset(GFP_NOWAIT, DIV_ROUND_UP(s->insert_bio_sectors, PAGE_SECTORS), - dc->disk.bio_split); + &dc->disk.bio_split); if (!cache_bio) goto out_submit; @@ -1008,7 +1008,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s) struct bio *flush; flush = bio_alloc_bioset(GFP_NOIO, 0, - dc->disk.bio_split); + &dc->disk.bio_split); if (!flush) { s->iop.status = BLK_STS_RESOURCE; goto insert_data; @@ -1021,7 +1021,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s) closure_bio_submit(s->iop.c, flush, cl); } } else { - s->iop.bio = bio_clone_fast(bio, GFP_NOIO, dc->disk.bio_split); + s->iop.bio = bio_clone_fast(bio, GFP_NOIO, &dc->disk.bio_split); /* I/O request sent to backing device */ bio->bi_end_io = backing_request_endio; closure_bio_submit(s->iop.c, bio, cl); diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 3dea06b41d43..a31e55bcc4e5 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -37,24 +37,6 @@ static const char invalid_uuid[] = { 0xc8, 0x50, 0xfc, 0x5e, 0xcb, 0x16, 0xcd, 0x99 }; -/* Default is -1; we skip past it for struct cached_dev's cache mode */ -const char * const bch_cache_modes[] = { - "default", - "writethrough", - "writeback", - "writearound", - "none", - NULL -}; - -/* Default is -1; we skip past it for stop_when_cache_set_failed */ -const char * const bch_stop_on_failure_modes[] = { - "default", - "auto", - "always", - NULL -}; - static struct kobject *bcache_kobj; struct mutex bch_register_lock; LIST_HEAD(bch_cache_sets); @@ -654,6 +636,11 @@ static int ioctl_dev(struct block_device *b, fmode_t mode, unsigned int cmd, unsigned long arg) { struct bcache_device *d = b->bd_disk->private_data; + struct cached_dev *dc = container_of(d, struct cached_dev, disk); + + if (dc->io_disable) + return -EIO; + return d->ioctl(d, mode, cmd, arg); } @@ -766,8 +753,7 @@ static void bcache_device_free(struct bcache_device *d) put_disk(d->disk); } - if (d->bio_split) - bioset_free(d->bio_split); + bioset_exit(&d->bio_split); kvfree(d->full_dirty_stripes); kvfree(d->stripe_sectors_dirty); @@ -809,9 +795,8 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size, if (idx < 0) return idx; - if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio), - BIOSET_NEED_BVECS | - BIOSET_NEED_RESCUER)) || + if (bioset_init(&d->bio_split, 4, offsetof(struct bbio, bio), + BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) || !(d->disk = alloc_disk(BCACHE_MINORS))) { ida_simple_remove(&bcache_device_idx, idx); return -ENOMEM; @@ -864,6 +849,44 @@ static void calc_cached_dev_sectors(struct cache_set *c) c->cached_dev_sectors = sectors; } +#define BACKING_DEV_OFFLINE_TIMEOUT 5 +static int cached_dev_status_update(void *arg) +{ + struct cached_dev *dc = arg; + struct request_queue *q; + + /* + * If this delayed worker is stopping outside, directly quit here. + * dc->io_disable might be set via sysfs interface, so check it + * here too. + */ + while (!kthread_should_stop() && !dc->io_disable) { + q = bdev_get_queue(dc->bdev); + if (blk_queue_dying(q)) + dc->offline_seconds++; + else + dc->offline_seconds = 0; + + if (dc->offline_seconds >= BACKING_DEV_OFFLINE_TIMEOUT) { + pr_err("%s: device offline for %d seconds", + dc->backing_dev_name, + BACKING_DEV_OFFLINE_TIMEOUT); + pr_err("%s: disable I/O request due to backing " + "device offline", dc->disk.name); + dc->io_disable = true; + /* let others know earlier that io_disable is true */ + smp_mb(); + bcache_device_stop(&dc->disk); + break; + } + schedule_timeout_interruptible(HZ); + } + + wait_for_kthread_stop(); + return 0; +} + + void bch_cached_dev_run(struct cached_dev *dc) { struct bcache_device *d = &dc->disk; @@ -906,6 +929,14 @@ void bch_cached_dev_run(struct cached_dev *dc) if (sysfs_create_link(&d->kobj, &disk_to_dev(d->disk)->kobj, "dev") || sysfs_create_link(&disk_to_dev(d->disk)->kobj, &d->kobj, "bcache")) pr_debug("error creating sysfs link"); + + dc->status_update_thread = kthread_run(cached_dev_status_update, + dc, "bcache_status_update"); + if (IS_ERR(dc->status_update_thread)) { + pr_warn("failed to create bcache_status_update kthread, " + "continue to run without monitoring backing " + "device status"); + } } /* @@ -1139,6 +1170,8 @@ static void cached_dev_free(struct closure *cl) kthread_stop(dc->writeback_thread); if (dc->writeback_write_wq) destroy_workqueue(dc->writeback_write_wq); + if (!IS_ERR_OR_NULL(dc->status_update_thread)) + kthread_stop(dc->status_update_thread); if (atomic_read(&dc->running)) bd_unlink_disk_holder(dc->bdev, dc->disk.disk); @@ -1465,14 +1498,10 @@ static void cache_set_free(struct closure *cl) if (c->moving_gc_wq) destroy_workqueue(c->moving_gc_wq); - if (c->bio_split) - bioset_free(c->bio_split); - if (c->fill_iter) - mempool_destroy(c->fill_iter); - if (c->bio_meta) - mempool_destroy(c->bio_meta); - if (c->search) - mempool_destroy(c->search); + bioset_exit(&c->bio_split); + mempool_exit(&c->fill_iter); + mempool_exit(&c->bio_meta); + mempool_exit(&c->search); kfree(c->devices); mutex_lock(&bch_register_lock); @@ -1683,21 +1712,17 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb) INIT_LIST_HEAD(&c->btree_cache_freed); INIT_LIST_HEAD(&c->data_buckets); - c->search = mempool_create_slab_pool(32, bch_search_cache); - if (!c->search) - goto err; - iter_size = (sb->bucket_size / sb->block_size + 1) * sizeof(struct btree_iter_set); if (!(c->devices = kzalloc(c->nr_uuids * sizeof(void *), GFP_KERNEL)) || - !(c->bio_meta = mempool_create_kmalloc_pool(2, - sizeof(struct bbio) + sizeof(struct bio_vec) * - bucket_pages(c))) || - !(c->fill_iter = mempool_create_kmalloc_pool(1, iter_size)) || - !(c->bio_split = bioset_create(4, offsetof(struct bbio, bio), - BIOSET_NEED_BVECS | - BIOSET_NEED_RESCUER)) || + mempool_init_slab_pool(&c->search, 32, bch_search_cache) || + mempool_init_kmalloc_pool(&c->bio_meta, 2, + sizeof(struct bbio) + sizeof(struct bio_vec) * + bucket_pages(c)) || + mempool_init_kmalloc_pool(&c->fill_iter, 1, iter_size) || + bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio), + BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) || !(c->uuids = alloc_bucket_pages(GFP_KERNEL, c)) || !(c->moving_gc_wq = alloc_workqueue("bcache_gc", WQ_MEM_RECLAIM, 0)) || diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index dfeef583ee50..8ccbc8f3b3af 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -16,6 +16,22 @@ #include <linux/sort.h> #include <linux/sched/clock.h> +/* Default is -1; we skip past it for struct cached_dev's cache mode */ +static const char * const bch_cache_modes[] = { + "writethrough", + "writeback", + "writearound", + "none", + NULL +}; + +/* Default is -1; we skip past it for stop_when_cache_set_failed */ +static const char * const bch_stop_on_failure_modes[] = { + "auto", + "always", + NULL +}; + static const char * const cache_replacement_policies[] = { "lru", "fifo", @@ -114,6 +130,20 @@ rw_attribute(btree_shrinker_disabled); rw_attribute(copy_gc_enabled); rw_attribute(size); +static ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[], + size_t selected) +{ + char *out = buf; + size_t i; + + for (i = 0; list[i]; i++) + out += snprintf(out, buf + size - out, + i == selected ? "[%s] " : "%s ", list[i]); + + out[-1] = '\n'; + return out - buf; +} + SHOW(__bch_cached_dev) { struct cached_dev *dc = container_of(kobj, struct cached_dev, @@ -124,12 +154,12 @@ SHOW(__bch_cached_dev) if (attr == &sysfs_cache_mode) return bch_snprint_string_list(buf, PAGE_SIZE, - bch_cache_modes + 1, + bch_cache_modes, BDEV_CACHE_MODE(&dc->sb)); if (attr == &sysfs_stop_when_cache_set_failed) return bch_snprint_string_list(buf, PAGE_SIZE, - bch_stop_on_failure_modes + 1, + bch_stop_on_failure_modes, dc->stop_when_cache_set_failed); @@ -253,8 +283,7 @@ STORE(__cached_dev) bch_cached_dev_run(dc); if (attr == &sysfs_cache_mode) { - v = bch_read_string_list(buf, bch_cache_modes + 1); - + v = __sysfs_match_string(bch_cache_modes, -1, buf); if (v < 0) return v; @@ -265,8 +294,7 @@ STORE(__cached_dev) } if (attr == &sysfs_stop_when_cache_set_failed) { - v = bch_read_string_list(buf, bch_stop_on_failure_modes + 1); - + v = __sysfs_match_string(bch_stop_on_failure_modes, -1, buf); if (v < 0) return v; @@ -635,6 +663,7 @@ SHOW_LOCKED(bch_cache_set) STORE(__bch_cache_set) { struct cache_set *c = container_of(kobj, struct cache_set, kobj); + ssize_t v; if (attr == &sysfs_unregister) bch_cache_set_unregister(c); @@ -698,8 +727,7 @@ STORE(__bch_cache_set) c->congested_write_threshold_us); if (attr == &sysfs_errors) { - ssize_t v = bch_read_string_list(buf, error_actions); - + v = __sysfs_match_string(error_actions, -1, buf); if (v < 0) return v; @@ -714,8 +742,7 @@ STORE(__bch_cache_set) c->error_decay = strtoul_or_return(buf) / 88; if (attr == &sysfs_io_disable) { - int v = strtoul_or_return(buf); - + v = strtoul_or_return(buf); if (v) { if (test_and_set_bit(CACHE_SET_IO_DISABLE, &c->flags)) @@ -929,6 +956,7 @@ SHOW_LOCKED(bch_cache) STORE(__bch_cache) { struct cache *ca = container_of(kobj, struct cache, kobj); + ssize_t v; if (attr == &sysfs_discard) { bool v = strtoul_or_return(buf); @@ -943,8 +971,7 @@ STORE(__bch_cache) } if (attr == &sysfs_cache_replacement_policy) { - ssize_t v = bch_read_string_list(buf, cache_replacement_policies); - + v = __sysfs_match_string(cache_replacement_policies, -1, buf); if (v < 0) return v; diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c index 74febd5230df..fc479b026d6d 100644 --- a/drivers/md/bcache/util.c +++ b/drivers/md/bcache/util.c @@ -120,41 +120,6 @@ ssize_t bch_hprint(char *buf, int64_t v) return sprintf(buf, "%llu.%i%c", q, t * 10 / 1024, units[u]); } -ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[], - size_t selected) -{ - char *out = buf; - size_t i; - - for (i = 0; list[i]; i++) - out += snprintf(out, buf + size - out, - i == selected ? "[%s] " : "%s ", list[i]); - - out[-1] = '\n'; - return out - buf; -} - -ssize_t bch_read_string_list(const char *buf, const char * const list[]) -{ - size_t i; - char *s, *d = kstrndup(buf, PAGE_SIZE - 1, GFP_KERNEL); - if (!d) - return -ENOMEM; - - s = strim(d); - - for (i = 0; list[i]; i++) - if (!strcmp(list[i], s)) - break; - - kfree(d); - - if (!list[i]) - return -EINVAL; - - return i; -} - bool bch_is_zero(const char *p, size_t n) { size_t i; diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index 268024529edd..cced87f8eb27 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -365,11 +365,6 @@ ssize_t bch_hprint(char *buf, int64_t v); bool bch_is_zero(const char *p, size_t n); int bch_parse_uuid(const char *s, char *uuid); -ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[], - size_t selected); - -ssize_t bch_read_string_list(const char *buf, const char * const list[]); - struct time_stats { spinlock_t lock; /* diff --git a/drivers/md/dm-bio-prison-v1.c b/drivers/md/dm-bio-prison-v1.c index 874841f0fc83..8e33a3808368 100644 --- a/drivers/md/dm-bio-prison-v1.c +++ b/drivers/md/dm-bio-prison-v1.c @@ -19,7 +19,7 @@ struct dm_bio_prison { spinlock_t lock; - mempool_t *cell_pool; + mempool_t cell_pool; struct rb_root cells; }; @@ -34,14 +34,15 @@ static struct kmem_cache *_cell_cache; struct dm_bio_prison *dm_bio_prison_create(void) { struct dm_bio_prison *prison = kmalloc(sizeof(*prison), GFP_KERNEL); + int ret; if (!prison) return NULL; spin_lock_init(&prison->lock); - prison->cell_pool = mempool_create_slab_pool(MIN_CELLS, _cell_cache); - if (!prison->cell_pool) { + ret = mempool_init_slab_pool(&prison->cell_pool, MIN_CELLS, _cell_cache); + if (ret) { kfree(prison); return NULL; } @@ -54,21 +55,21 @@ EXPORT_SYMBOL_GPL(dm_bio_prison_create); void dm_bio_prison_destroy(struct dm_bio_prison *prison) { - mempool_destroy(prison->cell_pool); + mempool_exit(&prison->cell_pool); kfree(prison); } EXPORT_SYMBOL_GPL(dm_bio_prison_destroy); struct dm_bio_prison_cell *dm_bio_prison_alloc_cell(struct dm_bio_prison *prison, gfp_t gfp) { - return mempool_alloc(prison->cell_pool, gfp); + return mempool_alloc(&prison->cell_pool, gfp); } EXPORT_SYMBOL_GPL(dm_bio_prison_alloc_cell); void dm_bio_prison_free_cell(struct dm_bio_prison *prison, struct dm_bio_prison_cell *cell) { - mempool_free(cell, prison->cell_pool); + mempool_free(cell, &prison->cell_pool); } EXPORT_SYMBOL_GPL(dm_bio_prison_free_cell); diff --git a/drivers/md/dm-bio-prison-v2.c b/drivers/md/dm-bio-prison-v2.c index 8ce3a1a588cf..601b1569206a 100644 --- a/drivers/md/dm-bio-prison-v2.c +++ b/drivers/md/dm-bio-prison-v2.c @@ -21,7 +21,7 @@ struct dm_bio_prison_v2 { struct workqueue_struct *wq; spinlock_t lock; - mempool_t *cell_pool; + mempool_t cell_pool; struct rb_root cells; }; @@ -36,6 +36,7 @@ static struct kmem_cache *_cell_cache; struct dm_bio_prison_v2 *dm_bio_prison_create_v2(struct workqueue_struct *wq) { struct dm_bio_prison_v2 *prison = kmalloc(sizeof(*prison), GFP_KERNEL); + int ret; if (!prison) return NULL; @@ -43,8 +44,8 @@ struct dm_bio_prison_v2 *dm_bio_prison_create_v2(struct workqueue_struct *wq) prison->wq = wq; spin_lock_init(&prison->lock); - prison->cell_pool = mempool_create_slab_pool(MIN_CELLS, _cell_cache); - if (!prison->cell_pool) { + ret = mempool_init_slab_pool(&prison->cell_pool, MIN_CELLS, _cell_cache); + if (ret) { kfree(prison); return NULL; } @@ -57,21 +58,21 @@ EXPORT_SYMBOL_GPL(dm_bio_prison_create_v2); void dm_bio_prison_destroy_v2(struct dm_bio_prison_v2 *prison) { - mempool_destroy(prison->cell_pool); + mempool_exit(&prison->cell_pool); kfree(prison); } EXPORT_SYMBOL_GPL(dm_bio_prison_destroy_v2); struct dm_bio_prison_cell_v2 *dm_bio_prison_alloc_cell_v2(struct dm_bio_prison_v2 *prison, gfp_t gfp) { - return mempool_alloc(prison->cell_pool, gfp); + return mempool_alloc(&prison->cell_pool, gfp); } EXPORT_SYMBOL_GPL(dm_bio_prison_alloc_cell_v2); void dm_bio_prison_free_cell_v2(struct dm_bio_prison_v2 *prison, struct dm_bio_prison_cell_v2 *cell) { - mempool_free(cell, prison->cell_pool); + mempool_free(cell, &prison->cell_pool); } EXPORT_SYMBOL_GPL(dm_bio_prison_free_cell_v2); diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index da208638fba4..001c71248246 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -447,9 +447,9 @@ struct cache { struct work_struct migration_worker; struct delayed_work waker; struct dm_bio_prison_v2 *prison; - struct bio_set *bs; + struct bio_set bs; - mempool_t *migration_pool; + mempool_t migration_pool; struct dm_cache_policy *policy; unsigned policy_nr_args; @@ -550,7 +550,7 @@ static struct dm_cache_migration *alloc_migration(struct cache *cache) { struct dm_cache_migration *mg; - mg = mempool_alloc(cache->migration_pool, GFP_NOWAIT); + mg = mempool_alloc(&cache->migration_pool, GFP_NOWAIT); if (!mg) return NULL; @@ -569,7 +569,7 @@ static void free_migration(struct dm_cache_migration *mg) if (atomic_dec_and_test(&cache->nr_allocated_migrations)) wake_up(&cache->migration_wait); - mempool_free(mg, cache->migration_pool); + mempool_free(mg, &cache->migration_pool); } /*----------------------------------------------------------------*/ @@ -924,7 +924,7 @@ static void issue_op(struct bio *bio, void *context) static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio, dm_oblock_t oblock, dm_cblock_t cblock) { - struct bio *origin_bio = bio_clone_fast(bio, GFP_NOIO, cache->bs); + struct bio *origin_bio = bio_clone_fast(bio, GFP_NOIO, &cache->bs); BUG_ON(!origin_bio); @@ -2011,7 +2011,7 @@ static void destroy(struct cache *cache) { unsigned i; - mempool_destroy(cache->migration_pool); + mempool_exit(&cache->migration_pool); if (cache->prison) dm_bio_prison_destroy_v2(cache->prison); @@ -2047,8 +2047,7 @@ static void destroy(struct cache *cache) kfree(cache->ctr_args[i]); kfree(cache->ctr_args); - if (cache->bs) - bioset_free(cache->bs); + bioset_exit(&cache->bs); kfree(cache); } @@ -2498,8 +2497,8 @@ static int cache_create(struct cache_args *ca, struct cache **result) cache->features = ca->features; if (writethrough_mode(cache)) { /* Create bioset for writethrough bios issued to origin */ - cache->bs = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!cache->bs) + r = bioset_init(&cache->bs, BIO_POOL_SIZE, 0, 0); + if (r) goto bad; } @@ -2630,9 +2629,9 @@ static int cache_create(struct cache_args *ca, struct cache **result) goto bad; } - cache->migration_pool = mempool_create_slab_pool(MIGRATION_POOL_SIZE, - migration_cache); - if (!cache->migration_pool) { + r = mempool_init_slab_pool(&cache->migration_pool, MIGRATION_POOL_SIZE, + migration_cache); + if (r) { *error = "Error creating cache's migration mempool"; goto bad; } diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h index 3222e21cbbf8..f21c5d21bf1b 100644 --- a/drivers/md/dm-core.h +++ b/drivers/md/dm-core.h @@ -91,8 +91,8 @@ struct mapped_device { /* * io objects are allocated from here. */ - struct bio_set *io_bs; - struct bio_set *bs; + struct bio_set io_bs; + struct bio_set bs; /* * freeze/thaw support require holding onto a super block diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 44ff473dab3e..da02f4d8e4b9 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -143,14 +143,14 @@ struct crypt_config { * pool for per bio private data, crypto requests, * encryption requeusts/buffer pages and integrity tags */ - mempool_t *req_pool; - mempool_t *page_pool; - mempool_t *tag_pool; + mempool_t req_pool; + mempool_t page_pool; + mempool_t tag_pool; unsigned tag_pool_max_sectors; struct percpu_counter n_allocated_pages; - struct bio_set *bs; + struct bio_set bs; struct mutex bio_alloc_lock; struct workqueue_struct *io_queue; @@ -1245,7 +1245,7 @@ static void crypt_alloc_req_skcipher(struct crypt_config *cc, unsigned key_index = ctx->cc_sector & (cc->tfms_count - 1); if (!ctx->r.req) - ctx->r.req = mempool_alloc(cc->req_pool, GFP_NOIO); + ctx->r.req = mempool_alloc(&cc->req_pool, GFP_NOIO); skcipher_request_set_tfm(ctx->r.req, cc->cipher_tfm.tfms[key_index]); @@ -1262,7 +1262,7 @@ static void crypt_alloc_req_aead(struct crypt_config *cc, struct convert_context *ctx) { if (!ctx->r.req_aead) - ctx->r.req_aead = mempool_alloc(cc->req_pool, GFP_NOIO); + ctx->r.req_aead = mempool_alloc(&cc->req_pool, GFP_NOIO); aead_request_set_tfm(ctx->r.req_aead, cc->cipher_tfm.tfms_aead[0]); @@ -1290,7 +1290,7 @@ static void crypt_free_req_skcipher(struct crypt_config *cc, struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); if ((struct skcipher_request *)(io + 1) != req) - mempool_free(req, cc->req_pool); + mempool_free(req, &cc->req_pool); } static void crypt_free_req_aead(struct crypt_config *cc, @@ -1299,7 +1299,7 @@ static void crypt_free_req_aead(struct crypt_config *cc, struct dm_crypt_io *io = dm_per_bio_data(base_bio, cc->per_bio_data_size); if ((struct aead_request *)(io + 1) != req) - mempool_free(req, cc->req_pool); + mempool_free(req, &cc->req_pool); } static void crypt_free_req(struct crypt_config *cc, void *req, struct bio *base_bio) @@ -1409,7 +1409,7 @@ retry: if (unlikely(gfp_mask & __GFP_DIRECT_RECLAIM)) mutex_lock(&cc->bio_alloc_lock); - clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, cc->bs); + clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, &cc->bs); if (!clone) goto out; @@ -1418,7 +1418,7 @@ retry: remaining_size = size; for (i = 0; i < nr_iovecs; i++) { - page = mempool_alloc(cc->page_pool, gfp_mask); + page = mempool_alloc(&cc->page_pool, gfp_mask); if (!page) { crypt_free_buffer_pages(cc, clone); bio_put(clone); @@ -1453,7 +1453,7 @@ static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone) bio_for_each_segment_all(bv, clone, i) { BUG_ON(!bv->bv_page); - mempool_free(bv->bv_page, cc->page_pool); + mempool_free(bv->bv_page, &cc->page_pool); } } @@ -1492,7 +1492,7 @@ static void crypt_dec_pending(struct dm_crypt_io *io) crypt_free_req(cc, io->ctx.r.req, base_bio); if (unlikely(io->integrity_metadata_from_pool)) - mempool_free(io->integrity_metadata, io->cc->tag_pool); + mempool_free(io->integrity_metadata, &io->cc->tag_pool); else kfree(io->integrity_metadata); @@ -1565,7 +1565,7 @@ static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp) * biovecs we don't need to worry about the block layer * modifying the biovec array; so leverage bio_clone_fast(). */ - clone = bio_clone_fast(io->base_bio, gfp, cc->bs); + clone = bio_clone_fast(io->base_bio, gfp, &cc->bs); if (!clone) return 1; @@ -2219,15 +2219,13 @@ static void crypt_dtr(struct dm_target *ti) crypt_free_tfms(cc); - if (cc->bs) - bioset_free(cc->bs); + bioset_exit(&cc->bs); - mempool_destroy(cc->page_pool); - mempool_destroy(cc->req_pool); - mempool_destroy(cc->tag_pool); + mempool_exit(&cc->page_pool); + mempool_exit(&cc->req_pool); + mempool_exit(&cc->tag_pool); - if (cc->page_pool) - WARN_ON(percpu_counter_sum(&cc->n_allocated_pages) != 0); + WARN_ON(percpu_counter_sum(&cc->n_allocated_pages) != 0); percpu_counter_destroy(&cc->n_allocated_pages); if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) @@ -2743,8 +2741,6 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) iv_size_padding = align_mask; } - ret = -ENOMEM; - /* ...| IV + padding | original IV | original sec. number | bio tag offset | */ additional_req_size = sizeof(struct dm_crypt_request) + iv_size_padding + cc->iv_size + @@ -2752,8 +2748,8 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) sizeof(uint64_t) + sizeof(unsigned int); - cc->req_pool = mempool_create_kmalloc_pool(MIN_IOS, cc->dmreq_start + additional_req_size); - if (!cc->req_pool) { + ret = mempool_init_kmalloc_pool(&cc->req_pool, MIN_IOS, cc->dmreq_start + additional_req_size); + if (ret) { ti->error = "Cannot allocate crypt request mempool"; goto bad; } @@ -2762,14 +2758,14 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) ALIGN(sizeof(struct dm_crypt_io) + cc->dmreq_start + additional_req_size, ARCH_KMALLOC_MINALIGN); - cc->page_pool = mempool_create(BIO_MAX_PAGES, crypt_page_alloc, crypt_page_free, cc); - if (!cc->page_pool) { + ret = mempool_init(&cc->page_pool, BIO_MAX_PAGES, crypt_page_alloc, crypt_page_free, cc); + if (ret) { ti->error = "Cannot allocate page mempool"; goto bad; } - cc->bs = bioset_create(MIN_IOS, 0, BIOSET_NEED_BVECS); - if (!cc->bs) { + ret = bioset_init(&cc->bs, MIN_IOS, 0, BIOSET_NEED_BVECS); + if (ret) { ti->error = "Cannot allocate crypt bioset"; goto bad; } @@ -2806,11 +2802,10 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) if (!cc->tag_pool_max_sectors) cc->tag_pool_max_sectors = 1; - cc->tag_pool = mempool_create_kmalloc_pool(MIN_IOS, + ret = mempool_init_kmalloc_pool(&cc->tag_pool, MIN_IOS, cc->tag_pool_max_sectors * cc->on_disk_tag_size); - if (!cc->tag_pool) { + if (ret) { ti->error = "Cannot allocate integrity tags mempool"; - ret = -ENOMEM; goto bad; } @@ -2903,7 +2898,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio) GFP_NOIO | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN)))) { if (bio_sectors(bio) > cc->tag_pool_max_sectors) dm_accept_partial_bio(bio, cc->tag_pool_max_sectors); - io->integrity_metadata = mempool_alloc(cc->tag_pool, GFP_NOIO); + io->integrity_metadata = mempool_alloc(&cc->tag_pool, GFP_NOIO); io->integrity_metadata_from_pool = true; } } diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 514fb4aec5d1..fc68c7aaef8e 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -142,7 +142,7 @@ struct dm_integrity_c { unsigned tag_size; __s8 log2_tag_size; sector_t start; - mempool_t *journal_io_mempool; + mempool_t journal_io_mempool; struct dm_io_client *io; struct dm_bufio_client *bufio; struct workqueue_struct *metadata_wq; @@ -1817,7 +1817,7 @@ static void complete_copy_from_journal(unsigned long error, void *context) struct journal_completion *comp = io->comp; struct dm_integrity_c *ic = comp->ic; remove_range(ic, &io->range); - mempool_free(io, ic->journal_io_mempool); + mempool_free(io, &ic->journal_io_mempool); if (unlikely(error != 0)) dm_integrity_io_error(ic, "copying from journal", -EIO); complete_journal_op(comp); @@ -1886,7 +1886,7 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned write_start, } next_loop = k - 1; - io = mempool_alloc(ic->journal_io_mempool, GFP_NOIO); + io = mempool_alloc(&ic->journal_io_mempool, GFP_NOIO); io->comp = ∁ io->range.logical_sector = sec; io->range.n_sectors = (k - j) << ic->sb->log2_sectors_per_block; @@ -1918,7 +1918,7 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned write_start, if (j == k) { remove_range_unlocked(ic, &io->range); spin_unlock_irq(&ic->endio_wait.lock); - mempool_free(io, ic->journal_io_mempool); + mempool_free(io, &ic->journal_io_mempool); goto skip_io; } for (l = j; l < k; l++) { @@ -2980,9 +2980,8 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv) goto bad; } - ic->journal_io_mempool = mempool_create_slab_pool(JOURNAL_IO_MEMPOOL, journal_io_cache); - if (!ic->journal_io_mempool) { - r = -ENOMEM; + r = mempool_init_slab_pool(&ic->journal_io_mempool, JOURNAL_IO_MEMPOOL, journal_io_cache); + if (r) { ti->error = "Cannot allocate mempool"; goto bad; } @@ -3196,7 +3195,7 @@ static void dm_integrity_dtr(struct dm_target *ti) destroy_workqueue(ic->writer_wq); if (ic->bufio) dm_bufio_client_destroy(ic->bufio); - mempool_destroy(ic->journal_io_mempool); + mempool_exit(&ic->journal_io_mempool); if (ic->io) dm_io_client_destroy(ic->io); if (ic->dev) diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index a8d914d5abbe..53c6ed0eaa1f 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -22,8 +22,8 @@ #define DM_IO_MAX_REGIONS BITS_PER_LONG struct dm_io_client { - mempool_t *pool; - struct bio_set *bios; + mempool_t pool; + struct bio_set bios; }; /* @@ -49,32 +49,33 @@ struct dm_io_client *dm_io_client_create(void) { struct dm_io_client *client; unsigned min_ios = dm_get_reserved_bio_based_ios(); + int ret; client = kmalloc(sizeof(*client), GFP_KERNEL); if (!client) return ERR_PTR(-ENOMEM); - client->pool = mempool_create_slab_pool(min_ios, _dm_io_cache); - if (!client->pool) + ret = mempool_init_slab_pool(&client->pool, min_ios, _dm_io_cache); + if (ret) goto bad; - client->bios = bioset_create(min_ios, 0, BIOSET_NEED_BVECS); - if (!client->bios) + ret = bioset_init(&client->bios, min_ios, 0, BIOSET_NEED_BVECS); + if (ret) goto bad; return client; bad: - mempool_destroy(client->pool); + mempool_exit(&client->pool); kfree(client); - return ERR_PTR(-ENOMEM); + return ERR_PTR(ret); } EXPORT_SYMBOL(dm_io_client_create); void dm_io_client_destroy(struct dm_io_client *client) { - mempool_destroy(client->pool); - bioset_free(client->bios); + mempool_exit(&client->pool); + bioset_exit(&client->bios); kfree(client); } EXPORT_SYMBOL(dm_io_client_destroy); @@ -120,7 +121,7 @@ static void complete_io(struct io *io) invalidate_kernel_vmap_range(io->vma_invalidate_address, io->vma_invalidate_size); - mempool_free(io, io->client->pool); + mempool_free(io, &io->client->pool); fn(error_bits, context); } @@ -344,7 +345,7 @@ static void do_region(int op, int op_flags, unsigned region, dm_sector_div_up(remaining, (PAGE_SIZE >> SECTOR_SHIFT))); } - bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, io->client->bios); + bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, &io->client->bios); bio->bi_iter.bi_sector = where->sector + (where->count - remaining); bio_set_dev(bio, where->bdev); bio->bi_end_io = endio; @@ -442,7 +443,7 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions, init_completion(&sio.wait); - io = mempool_alloc(client->pool, GFP_NOIO); + io = mempool_alloc(&client->pool, GFP_NOIO); io->error_bits = 0; atomic_set(&io->count, 1); /* see dispatch_io() */ io->client = client; @@ -474,7 +475,7 @@ static int async_io(struct dm_io_client *client, unsigned int num_regions, return -EIO; } - io = mempool_alloc(client->pool, GFP_NOIO); + io = mempool_alloc(&client->pool, GFP_NOIO); io->error_bits = 0; atomic_set(&io->count, 1); /* see dispatch_io() */ io->client = client; diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index e6e7c686646d..c89a675a2aac 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -47,7 +47,7 @@ struct dm_kcopyd_client { wait_queue_head_t destroyq; atomic_t nr_jobs; - mempool_t *job_pool; + mempool_t job_pool; struct workqueue_struct *kcopyd_wq; struct work_struct kcopyd_work; @@ -479,7 +479,7 @@ static int run_complete_job(struct kcopyd_job *job) */ if (job->master_job == job) { mutex_destroy(&job->lock); - mempool_free(job, kc->job_pool); + mempool_free(job, &kc->job_pool); } fn(read_err, write_err, context); @@ -751,7 +751,7 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, * Allocate an array of jobs consisting of one master job * followed by SPLIT_COUNT sub jobs. */ - job = mempool_alloc(kc->job_pool, GFP_NOIO); + job = mempool_alloc(&kc->job_pool, GFP_NOIO); mutex_init(&job->lock); /* @@ -835,7 +835,7 @@ void *dm_kcopyd_prepare_callback(struct dm_kcopyd_client *kc, { struct kcopyd_job *job; - job = mempool_alloc(kc->job_pool, GFP_NOIO); + job = mempool_alloc(&kc->job_pool, GFP_NOIO); memset(job, 0, sizeof(struct kcopyd_job)); job->kc = kc; @@ -879,7 +879,7 @@ int kcopyd_cancel(struct kcopyd_job *job, int block) *---------------------------------------------------------------*/ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *throttle) { - int r = -ENOMEM; + int r; struct dm_kcopyd_client *kc; kc = kmalloc(sizeof(*kc), GFP_KERNEL); @@ -892,14 +892,16 @@ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *thro INIT_LIST_HEAD(&kc->pages_jobs); kc->throttle = throttle; - kc->job_pool = mempool_create_slab_pool(MIN_JOBS, _job_cache); - if (!kc->job_pool) + r = mempool_init_slab_pool(&kc->job_pool, MIN_JOBS, _job_cache); + if (r) goto bad_slab; INIT_WORK(&kc->kcopyd_work, do_work); kc->kcopyd_wq = alloc_workqueue("kcopyd", WQ_MEM_RECLAIM, 0); - if (!kc->kcopyd_wq) + if (!kc->kcopyd_wq) { + r = -ENOMEM; goto bad_workqueue; + } kc->pages = NULL; kc->nr_reserved_pages = kc->nr_free_pages = 0; @@ -923,7 +925,7 @@ bad_io_client: bad_client_pages: destroy_workqueue(kc->kcopyd_wq); bad_workqueue: - mempool_destroy(kc->job_pool); + mempool_exit(&kc->job_pool); bad_slab: kfree(kc); @@ -942,7 +944,7 @@ void dm_kcopyd_client_destroy(struct dm_kcopyd_client *kc) destroy_workqueue(kc->kcopyd_wq); dm_io_client_destroy(kc->io_client); client_free_pages(kc); - mempool_destroy(kc->job_pool); + mempool_exit(&kc->job_pool); kfree(kc); } EXPORT_SYMBOL(dm_kcopyd_client_destroy); diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index 53b7b06d0aa8..52090bee17c2 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -76,7 +76,7 @@ struct log_c { */ uint32_t integrated_flush; - mempool_t *flush_entry_pool; + mempool_t flush_entry_pool; }; static struct kmem_cache *_flush_entry_cache; @@ -249,11 +249,10 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, goto out; } - lc->flush_entry_pool = mempool_create_slab_pool(FLUSH_ENTRY_POOL_SIZE, - _flush_entry_cache); - if (!lc->flush_entry_pool) { + r = mempool_init_slab_pool(&lc->flush_entry_pool, FLUSH_ENTRY_POOL_SIZE, + _flush_entry_cache); + if (r) { DMERR("Failed to create flush_entry_pool"); - r = -ENOMEM; goto out; } @@ -313,7 +312,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, out: kfree(devices_rdata); if (r) { - mempool_destroy(lc->flush_entry_pool); + mempool_exit(&lc->flush_entry_pool); kfree(lc); kfree(ctr_str); } else { @@ -342,7 +341,7 @@ static void userspace_dtr(struct dm_dirty_log *log) if (lc->log_dev) dm_put_device(lc->ti, lc->log_dev); - mempool_destroy(lc->flush_entry_pool); + mempool_exit(&lc->flush_entry_pool); kfree(lc->usr_argv_str); kfree(lc); @@ -570,7 +569,7 @@ static int userspace_flush(struct dm_dirty_log *log) int mark_list_is_empty; int clear_list_is_empty; struct dm_dirty_log_flush_entry *fe, *tmp_fe; - mempool_t *flush_entry_pool = lc->flush_entry_pool; + mempool_t *flush_entry_pool = &lc->flush_entry_pool; spin_lock_irqsave(&lc->flush_lock, flags); list_splice_init(&lc->mark_list, &mark_list); @@ -653,7 +652,7 @@ static void userspace_mark_region(struct dm_dirty_log *log, region_t region) struct dm_dirty_log_flush_entry *fe; /* Wait for an allocation, but _never_ fail */ - fe = mempool_alloc(lc->flush_entry_pool, GFP_NOIO); + fe = mempool_alloc(&lc->flush_entry_pool, GFP_NOIO); BUG_ON(!fe); spin_lock_irqsave(&lc->flush_lock, flags); @@ -687,7 +686,7 @@ static void userspace_clear_region(struct dm_dirty_log *log, region_t region) * to cause the region to be resync'ed when the * device is activated next time. */ - fe = mempool_alloc(lc->flush_entry_pool, GFP_ATOMIC); + fe = mempool_alloc(&lc->flush_entry_pool, GFP_ATOMIC); if (!fe) { DMERR("Failed to allocate memory to clear region."); return; diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 203a0419d2b0..d94ba6f72ff5 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -520,7 +520,8 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq, bdev = pgpath->path.dev->bdev; q = bdev_get_queue(bdev); - clone = blk_get_request(q, rq->cmd_flags | REQ_NOMERGE, GFP_ATOMIC); + clone = blk_get_request(q, rq->cmd_flags | REQ_NOMERGE, + BLK_MQ_REQ_NOWAIT); if (IS_ERR(clone)) { /* EBUSY, ENODEV or EWOULDBLOCK: requeue */ if (blk_queue_dying(q)) { diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c index 85c32b22a420..43149eb49375 100644 --- a/drivers/md/dm-region-hash.c +++ b/drivers/md/dm-region-hash.c @@ -63,7 +63,7 @@ struct dm_region_hash { /* hash table */ rwlock_t hash_lock; - mempool_t *region_pool; + mempool_t region_pool; unsigned mask; unsigned nr_buckets; unsigned prime; @@ -169,6 +169,7 @@ struct dm_region_hash *dm_region_hash_create( struct dm_region_hash *rh; unsigned nr_buckets, max_buckets; size_t i; + int ret; /* * Calculate a suitable number of buckets for our hash @@ -220,9 +221,9 @@ struct dm_region_hash *dm_region_hash_create( INIT_LIST_HEAD(&rh->failed_recovered_regions); rh->flush_failure = 0; - rh->region_pool = mempool_create_kmalloc_pool(MIN_REGIONS, - sizeof(struct dm_region)); - if (!rh->region_pool) { + ret = mempool_init_kmalloc_pool(&rh->region_pool, MIN_REGIONS, + sizeof(struct dm_region)); + if (ret) { vfree(rh->buckets); kfree(rh); rh = ERR_PTR(-ENOMEM); @@ -242,14 +243,14 @@ void dm_region_hash_destroy(struct dm_region_hash *rh) list_for_each_entry_safe(reg, nreg, rh->buckets + h, hash_list) { BUG_ON(atomic_read(®->pending)); - mempool_free(reg, rh->region_pool); + mempool_free(reg, &rh->region_pool); } } if (rh->log) dm_dirty_log_destroy(rh->log); - mempool_destroy(rh->region_pool); + mempool_exit(&rh->region_pool); vfree(rh->buckets); kfree(rh); } @@ -287,7 +288,7 @@ static struct dm_region *__rh_alloc(struct dm_region_hash *rh, region_t region) { struct dm_region *reg, *nreg; - nreg = mempool_alloc(rh->region_pool, GFP_ATOMIC); + nreg = mempool_alloc(&rh->region_pool, GFP_ATOMIC); if (unlikely(!nreg)) nreg = kmalloc(sizeof(*nreg), GFP_NOIO | __GFP_NOFAIL); @@ -303,7 +304,7 @@ static struct dm_region *__rh_alloc(struct dm_region_hash *rh, region_t region) reg = __rh_lookup(rh, region); if (reg) /* We lost the race. */ - mempool_free(nreg, rh->region_pool); + mempool_free(nreg, &rh->region_pool); else { __rh_insert(rh, nreg); if (nreg->state == DM_RH_CLEAN) { @@ -481,17 +482,17 @@ void dm_rh_update_states(struct dm_region_hash *rh, int errors_handled) list_for_each_entry_safe(reg, next, &recovered, list) { rh->log->type->clear_region(rh->log, reg->key); complete_resync_work(reg, 1); - mempool_free(reg, rh->region_pool); + mempool_free(reg, &rh->region_pool); } list_for_each_entry_safe(reg, next, &failed_recovered, list) { complete_resync_work(reg, errors_handled ? 0 : 1); - mempool_free(reg, rh->region_pool); + mempool_free(reg, &rh->region_pool); } list_for_each_entry_safe(reg, next, &clean, list) { rh->log->type->clear_region(rh->log, reg->key); - mempool_free(reg, rh->region_pool); + mempool_free(reg, &rh->region_pool); } rh->log->type->flush(rh->log); diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index bf0b840645cc..6e547b8dd298 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -406,7 +406,7 @@ static blk_status_t dm_dispatch_clone_request(struct request *clone, struct requ if (blk_queue_io_stat(clone->q)) clone->rq_flags |= RQF_IO_STAT; - clone->start_time = jiffies; + clone->start_time_ns = ktime_get_ns(); r = blk_insert_cloned_request(clone->q, clone); if (r != BLK_STS_OK && r != BLK_STS_RESOURCE && r != BLK_STS_DEV_RESOURCE) /* must complete clone in terms of original request */ @@ -433,7 +433,7 @@ static int setup_clone(struct request *clone, struct request *rq, { int r; - r = blk_rq_prep_clone(clone, rq, tio->md->bs, gfp_mask, + r = blk_rq_prep_clone(clone, rq, &tio->md->bs, gfp_mask, dm_rq_bio_constructor, tio); if (r) return r; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 216035be5661..b11ddc55f297 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -87,7 +87,7 @@ struct dm_snapshot { */ struct list_head out_of_order_list; - mempool_t *pending_pool; + mempool_t pending_pool; struct dm_exception_table pending; struct dm_exception_table complete; @@ -682,7 +682,7 @@ static void free_completed_exception(struct dm_exception *e) static struct dm_snap_pending_exception *alloc_pending_exception(struct dm_snapshot *s) { - struct dm_snap_pending_exception *pe = mempool_alloc(s->pending_pool, + struct dm_snap_pending_exception *pe = mempool_alloc(&s->pending_pool, GFP_NOIO); atomic_inc(&s->pending_exceptions_count); @@ -695,7 +695,7 @@ static void free_pending_exception(struct dm_snap_pending_exception *pe) { struct dm_snapshot *s = pe->snap; - mempool_free(pe, s->pending_pool); + mempool_free(pe, &s->pending_pool); smp_mb__before_atomic(); atomic_dec(&s->pending_exceptions_count); } @@ -1196,10 +1196,9 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad_kcopyd; } - s->pending_pool = mempool_create_slab_pool(MIN_IOS, pending_cache); - if (!s->pending_pool) { + r = mempool_init_slab_pool(&s->pending_pool, MIN_IOS, pending_cache); + if (r) { ti->error = "Could not allocate mempool for pending exceptions"; - r = -ENOMEM; goto bad_pending_pool; } @@ -1259,7 +1258,7 @@ bad_read_metadata: unregister_snapshot(s); bad_load_and_register: - mempool_destroy(s->pending_pool); + mempool_exit(&s->pending_pool); bad_pending_pool: dm_kcopyd_client_destroy(s->kcopyd_client); @@ -1355,7 +1354,7 @@ static void snapshot_dtr(struct dm_target *ti) while (atomic_read(&s->pending_exceptions_count)) msleep(1); /* - * Ensure instructions in mempool_destroy aren't reordered + * Ensure instructions in mempool_exit aren't reordered * before atomic_read. */ smp_mb(); @@ -1367,7 +1366,7 @@ static void snapshot_dtr(struct dm_target *ti) __free_exceptions(s); - mempool_destroy(s->pending_pool); + mempool_exit(&s->pending_pool); dm_exception_store_destroy(s->store); diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index b11107497d2e..6c923824ec91 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -260,7 +260,7 @@ struct pool { struct dm_deferred_set *all_io_ds; struct dm_thin_new_mapping *next_mapping; - mempool_t *mapping_pool; + mempool_t mapping_pool; process_bio_fn process_bio; process_bio_fn process_discard; @@ -917,7 +917,7 @@ static void process_prepared_mapping_fail(struct dm_thin_new_mapping *m) { cell_error(m->tc->pool, m->cell); list_del(&m->list); - mempool_free(m, m->tc->pool->mapping_pool); + mempool_free(m, &m->tc->pool->mapping_pool); } static void process_prepared_mapping(struct dm_thin_new_mapping *m) @@ -961,7 +961,7 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m) out: list_del(&m->list); - mempool_free(m, pool->mapping_pool); + mempool_free(m, &pool->mapping_pool); } /*----------------------------------------------------------------*/ @@ -971,7 +971,7 @@ static void free_discard_mapping(struct dm_thin_new_mapping *m) struct thin_c *tc = m->tc; if (m->cell) cell_defer_no_holder(tc, m->cell); - mempool_free(m, tc->pool->mapping_pool); + mempool_free(m, &tc->pool->mapping_pool); } static void process_prepared_discard_fail(struct dm_thin_new_mapping *m) @@ -999,7 +999,7 @@ static void process_prepared_discard_no_passdown(struct dm_thin_new_mapping *m) bio_endio(m->bio); cell_defer_no_holder(tc, m->cell); - mempool_free(m, tc->pool->mapping_pool); + mempool_free(m, &tc->pool->mapping_pool); } /*----------------------------------------------------------------*/ @@ -1092,7 +1092,7 @@ static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m) metadata_operation_failed(pool, "dm_thin_remove_range", r); bio_io_error(m->bio); cell_defer_no_holder(tc, m->cell); - mempool_free(m, pool->mapping_pool); + mempool_free(m, &pool->mapping_pool); return; } @@ -1105,7 +1105,7 @@ static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m) metadata_operation_failed(pool, "dm_pool_inc_data_range", r); bio_io_error(m->bio); cell_defer_no_holder(tc, m->cell); - mempool_free(m, pool->mapping_pool); + mempool_free(m, &pool->mapping_pool); return; } @@ -1150,7 +1150,7 @@ static void process_prepared_discard_passdown_pt2(struct dm_thin_new_mapping *m) bio_endio(m->bio); cell_defer_no_holder(tc, m->cell); - mempool_free(m, pool->mapping_pool); + mempool_free(m, &pool->mapping_pool); } static void process_prepared(struct pool *pool, struct list_head *head, @@ -1196,7 +1196,7 @@ static int ensure_next_mapping(struct pool *pool) if (pool->next_mapping) return 0; - pool->next_mapping = mempool_alloc(pool->mapping_pool, GFP_ATOMIC); + pool->next_mapping = mempool_alloc(&pool->mapping_pool, GFP_ATOMIC); return pool->next_mapping ? 0 : -ENOMEM; } @@ -2835,8 +2835,8 @@ static void __pool_destroy(struct pool *pool) destroy_workqueue(pool->wq); if (pool->next_mapping) - mempool_free(pool->next_mapping, pool->mapping_pool); - mempool_destroy(pool->mapping_pool); + mempool_free(pool->next_mapping, &pool->mapping_pool); + mempool_exit(&pool->mapping_pool); dm_deferred_set_destroy(pool->shared_read_ds); dm_deferred_set_destroy(pool->all_io_ds); kfree(pool); @@ -2931,11 +2931,11 @@ static struct pool *pool_create(struct mapped_device *pool_md, } pool->next_mapping = NULL; - pool->mapping_pool = mempool_create_slab_pool(MAPPING_POOL_SIZE, - _new_mapping_cache); - if (!pool->mapping_pool) { + r = mempool_init_slab_pool(&pool->mapping_pool, MAPPING_POOL_SIZE, + _new_mapping_cache); + if (r) { *error = "Error creating pool's mapping mempool"; - err_p = ERR_PTR(-ENOMEM); + err_p = ERR_PTR(r); goto bad_mapping_pool; } @@ -2955,7 +2955,7 @@ static struct pool *pool_create(struct mapped_device *pool_md, return pool; bad_sort_array: - mempool_destroy(pool->mapping_pool); + mempool_exit(&pool->mapping_pool); bad_mapping_pool: dm_deferred_set_destroy(pool->all_io_ds); bad_all_io_ds: diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index e13f90832b6b..86405869f1af 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -309,13 +309,13 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio) unsigned n; if (!fio->rs) - fio->rs = mempool_alloc(v->fec->rs_pool, GFP_NOIO); + fio->rs = mempool_alloc(&v->fec->rs_pool, GFP_NOIO); fec_for_each_prealloc_buffer(n) { if (fio->bufs[n]) continue; - fio->bufs[n] = mempool_alloc(v->fec->prealloc_pool, GFP_NOWAIT); + fio->bufs[n] = mempool_alloc(&v->fec->prealloc_pool, GFP_NOWAIT); if (unlikely(!fio->bufs[n])) { DMERR("failed to allocate FEC buffer"); return -ENOMEM; @@ -327,7 +327,7 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio) if (fio->bufs[n]) continue; - fio->bufs[n] = mempool_alloc(v->fec->extra_pool, GFP_NOWAIT); + fio->bufs[n] = mempool_alloc(&v->fec->extra_pool, GFP_NOWAIT); /* we can manage with even one buffer if necessary */ if (unlikely(!fio->bufs[n])) break; @@ -335,7 +335,7 @@ static int fec_alloc_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio) fio->nbufs = n; if (!fio->output) - fio->output = mempool_alloc(v->fec->output_pool, GFP_NOIO); + fio->output = mempool_alloc(&v->fec->output_pool, GFP_NOIO); return 0; } @@ -493,15 +493,15 @@ void verity_fec_finish_io(struct dm_verity_io *io) if (!verity_fec_is_enabled(io->v)) return; - mempool_free(fio->rs, f->rs_pool); + mempool_free(fio->rs, &f->rs_pool); fec_for_each_prealloc_buffer(n) - mempool_free(fio->bufs[n], f->prealloc_pool); + mempool_free(fio->bufs[n], &f->prealloc_pool); fec_for_each_extra_buffer(fio, n) - mempool_free(fio->bufs[n], f->extra_pool); + mempool_free(fio->bufs[n], &f->extra_pool); - mempool_free(fio->output, f->output_pool); + mempool_free(fio->output, &f->output_pool); } /* @@ -549,9 +549,9 @@ void verity_fec_dtr(struct dm_verity *v) if (!verity_fec_is_enabled(v)) goto out; - mempool_destroy(f->rs_pool); - mempool_destroy(f->prealloc_pool); - mempool_destroy(f->extra_pool); + mempool_exit(&f->rs_pool); + mempool_exit(&f->prealloc_pool); + mempool_exit(&f->extra_pool); kmem_cache_destroy(f->cache); if (f->data_bufio) @@ -675,6 +675,7 @@ int verity_fec_ctr(struct dm_verity *v) struct dm_verity_fec *f = v->fec; struct dm_target *ti = v->ti; u64 hash_blocks; + int ret; if (!verity_fec_is_enabled(v)) { verity_fec_dtr(v); @@ -770,11 +771,11 @@ int verity_fec_ctr(struct dm_verity *v) } /* Preallocate an rs_control structure for each worker thread */ - f->rs_pool = mempool_create(num_online_cpus(), fec_rs_alloc, - fec_rs_free, (void *) v); - if (!f->rs_pool) { + ret = mempool_init(&f->rs_pool, num_online_cpus(), fec_rs_alloc, + fec_rs_free, (void *) v); + if (ret) { ti->error = "Cannot allocate RS pool"; - return -ENOMEM; + return ret; } f->cache = kmem_cache_create("dm_verity_fec_buffers", @@ -786,26 +787,26 @@ int verity_fec_ctr(struct dm_verity *v) } /* Preallocate DM_VERITY_FEC_BUF_PREALLOC buffers for each thread */ - f->prealloc_pool = mempool_create_slab_pool(num_online_cpus() * - DM_VERITY_FEC_BUF_PREALLOC, - f->cache); - if (!f->prealloc_pool) { + ret = mempool_init_slab_pool(&f->prealloc_pool, num_online_cpus() * + DM_VERITY_FEC_BUF_PREALLOC, + f->cache); + if (ret) { ti->error = "Cannot allocate FEC buffer prealloc pool"; - return -ENOMEM; + return ret; } - f->extra_pool = mempool_create_slab_pool(0, f->cache); - if (!f->extra_pool) { + ret = mempool_init_slab_pool(&f->extra_pool, 0, f->cache); + if (ret) { ti->error = "Cannot allocate FEC buffer extra pool"; - return -ENOMEM; + return ret; } /* Preallocate an output buffer for each thread */ - f->output_pool = mempool_create_kmalloc_pool(num_online_cpus(), - 1 << v->data_dev_block_bits); - if (!f->output_pool) { + ret = mempool_init_kmalloc_pool(&f->output_pool, num_online_cpus(), + 1 << v->data_dev_block_bits); + if (ret) { ti->error = "Cannot allocate FEC output pool"; - return -ENOMEM; + return ret; } /* Reserve space for our per-bio data */ diff --git a/drivers/md/dm-verity-fec.h b/drivers/md/dm-verity-fec.h index bb31ce87a933..6ad803b2b36c 100644 --- a/drivers/md/dm-verity-fec.h +++ b/drivers/md/dm-verity-fec.h @@ -46,10 +46,10 @@ struct dm_verity_fec { sector_t hash_blocks; /* blocks covered after v->hash_start */ unsigned char roots; /* number of parity bytes, M-N of RS(M, N) */ unsigned char rsn; /* N of RS(M, N) */ - mempool_t *rs_pool; /* mempool for fio->rs */ - mempool_t *prealloc_pool; /* mempool for preallocated buffers */ - mempool_t *extra_pool; /* mempool for extra buffers */ - mempool_t *output_pool; /* mempool for output */ + mempool_t rs_pool; /* mempool for fio->rs */ + mempool_t prealloc_pool; /* mempool for preallocated buffers */ + mempool_t extra_pool; /* mempool for extra buffers */ + mempool_t output_pool; /* mempool for output */ struct kmem_cache *cache; /* cache for buffers */ }; diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c index e73b0776683c..30602d15ad9a 100644 --- a/drivers/md/dm-zoned-target.c +++ b/drivers/md/dm-zoned-target.c @@ -57,7 +57,7 @@ struct dmz_target { struct workqueue_struct *chunk_wq; /* For cloned BIOs to zones */ - struct bio_set *bio_set; + struct bio_set bio_set; /* For flush */ spinlock_t flush_lock; @@ -121,7 +121,7 @@ static int dmz_submit_read_bio(struct dmz_target *dmz, struct dm_zone *zone, } /* Partial BIO: we need to clone the BIO */ - clone = bio_clone_fast(bio, GFP_NOIO, dmz->bio_set); + clone = bio_clone_fast(bio, GFP_NOIO, &dmz->bio_set); if (!clone) return -ENOMEM; @@ -779,10 +779,9 @@ static int dmz_ctr(struct dm_target *ti, unsigned int argc, char **argv) ti->len = (sector_t)dmz_nr_chunks(dmz->metadata) << dev->zone_nr_sectors_shift; /* Zone BIO */ - dmz->bio_set = bioset_create(DMZ_MIN_BIOS, 0, 0); - if (!dmz->bio_set) { + ret = bioset_init(&dmz->bio_set, DMZ_MIN_BIOS, 0, 0); + if (ret) { ti->error = "Create BIO set failed"; - ret = -ENOMEM; goto err_meta; } @@ -828,7 +827,7 @@ err_cwq: destroy_workqueue(dmz->chunk_wq); err_bio: mutex_destroy(&dmz->chunk_lock); - bioset_free(dmz->bio_set); + bioset_exit(&dmz->bio_set); err_meta: dmz_dtr_metadata(dmz->metadata); err_dev: @@ -858,7 +857,7 @@ static void dmz_dtr(struct dm_target *ti) dmz_dtr_metadata(dmz->metadata); - bioset_free(dmz->bio_set); + bioset_exit(&dmz->bio_set); dmz_put_zoned_device(ti); diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 0a7b0107ca78..98dff36b89a3 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -148,8 +148,8 @@ static int dm_numa_node = DM_NUMA_NODE; * For mempools pre-allocation at the table loading time. */ struct dm_md_mempools { - struct bio_set *bs; - struct bio_set *io_bs; + struct bio_set bs; + struct bio_set io_bs; }; struct table_device { @@ -537,7 +537,7 @@ static struct dm_io *alloc_io(struct mapped_device *md, struct bio *bio) struct dm_target_io *tio; struct bio *clone; - clone = bio_alloc_bioset(GFP_NOIO, 0, md->io_bs); + clone = bio_alloc_bioset(GFP_NOIO, 0, &md->io_bs); if (!clone) return NULL; @@ -572,7 +572,7 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci, struct dm_target *t /* the dm_target_io embedded in ci->io is available */ tio = &ci->io->tio; } else { - struct bio *clone = bio_alloc_bioset(gfp_mask, 0, ci->io->md->bs); + struct bio *clone = bio_alloc_bioset(gfp_mask, 0, &ci->io->md->bs); if (!clone) return NULL; @@ -1583,7 +1583,7 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md, * won't be affected by this reassignment. */ struct bio *b = bio_clone_bioset(bio, GFP_NOIO, - md->queue->bio_split); + &md->queue->bio_split); ci.io->orig_bio = b; bio_advance(bio, (bio_sectors(bio) - ci.sector_count) << 9); bio_chain(b, bio); @@ -1785,10 +1785,8 @@ static void cleanup_mapped_device(struct mapped_device *md) destroy_workqueue(md->wq); if (md->kworker_task) kthread_stop(md->kworker_task); - if (md->bs) - bioset_free(md->bs); - if (md->io_bs) - bioset_free(md->io_bs); + bioset_exit(&md->bs); + bioset_exit(&md->io_bs); if (md->dax_dev) { kill_dax(md->dax_dev); @@ -1965,16 +1963,10 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t) * If so, reload bioset because front_pad may have changed * because a different table was loaded. */ - if (md->bs) { - bioset_free(md->bs); - md->bs = NULL; - } - if (md->io_bs) { - bioset_free(md->io_bs); - md->io_bs = NULL; - } + bioset_exit(&md->bs); + bioset_exit(&md->io_bs); - } else if (md->bs) { + } else if (bioset_initialized(&md->bs)) { /* * There's no need to reload with request-based dm * because the size of front_pad doesn't change. @@ -1986,12 +1978,14 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t) goto out; } - BUG_ON(!p || md->bs || md->io_bs); + BUG_ON(!p || + bioset_initialized(&md->bs) || + bioset_initialized(&md->io_bs)); md->bs = p->bs; - p->bs = NULL; + memset(&p->bs, 0, sizeof(p->bs)); md->io_bs = p->io_bs; - p->io_bs = NULL; + memset(&p->io_bs, 0, sizeof(p->io_bs)); out: /* mempool bind completed, no longer need any mempools in the table */ dm_table_free_md_mempools(t); @@ -2905,6 +2899,7 @@ struct dm_md_mempools *dm_alloc_md_mempools(struct mapped_device *md, enum dm_qu struct dm_md_mempools *pools = kzalloc_node(sizeof(*pools), GFP_KERNEL, md->numa_node_id); unsigned int pool_size = 0; unsigned int front_pad, io_front_pad; + int ret; if (!pools) return NULL; @@ -2916,10 +2911,10 @@ struct dm_md_mempools *dm_alloc_md_mempools(struct mapped_device *md, enum dm_qu pool_size = max(dm_get_reserved_bio_based_ios(), min_pool_size); front_pad = roundup(per_io_data_size, __alignof__(struct dm_target_io)) + offsetof(struct dm_target_io, clone); io_front_pad = roundup(front_pad, __alignof__(struct dm_io)) + offsetof(struct dm_io, tio); - pools->io_bs = bioset_create(pool_size, io_front_pad, 0); - if (!pools->io_bs) + ret = bioset_init(&pools->io_bs, pool_size, io_front_pad, 0); + if (ret) goto out; - if (integrity && bioset_integrity_create(pools->io_bs, pool_size)) + if (integrity && bioset_integrity_create(&pools->io_bs, pool_size)) goto out; break; case DM_TYPE_REQUEST_BASED: @@ -2932,11 +2927,11 @@ struct dm_md_mempools *dm_alloc_md_mempools(struct mapped_device *md, enum dm_qu BUG(); } - pools->bs = bioset_create(pool_size, front_pad, 0); - if (!pools->bs) + ret = bioset_init(&pools->bs, pool_size, front_pad, 0); + if (ret) goto out; - if (integrity && bioset_integrity_create(pools->bs, pool_size)) + if (integrity && bioset_integrity_create(&pools->bs, pool_size)) goto out; return pools; @@ -2952,10 +2947,8 @@ void dm_free_md_mempools(struct dm_md_mempools *pools) if (!pools) return; - if (pools->bs) - bioset_free(pools->bs); - if (pools->io_bs) - bioset_free(pools->io_bs); + bioset_exit(&pools->bs); + bioset_exit(&pools->io_bs); kfree(pools); } diff --git a/drivers/md/md-faulty.c b/drivers/md/md-faulty.c index 38264b38420f..c2fdf899de14 100644 --- a/drivers/md/md-faulty.c +++ b/drivers/md/md-faulty.c @@ -214,7 +214,7 @@ static bool faulty_make_request(struct mddev *mddev, struct bio *bio) } } if (failit) { - struct bio *b = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set); + struct bio *b = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set); bio_set_dev(b, conf->rdev->bdev); b->bi_private = bio; diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c index 4964323d936b..d45c697c0ebe 100644 --- a/drivers/md/md-linear.c +++ b/drivers/md/md-linear.c @@ -269,7 +269,7 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio) if (unlikely(bio_end_sector(bio) > end_sector)) { /* This bio crosses a device boundary, so we have to split it */ struct bio *split = bio_split(bio, end_sector - bio_sector, - GFP_NOIO, mddev->bio_set); + GFP_NOIO, &mddev->bio_set); bio_chain(split, bio); generic_make_request(bio); bio = split; diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c index 0a7e99d62c69..f71fcdb9b39c 100644 --- a/drivers/md/md-multipath.c +++ b/drivers/md/md-multipath.c @@ -80,7 +80,7 @@ static void multipath_end_bh_io(struct multipath_bh *mp_bh, blk_status_t status) bio->bi_status = status; bio_endio(bio); - mempool_free(mp_bh, conf->pool); + mempool_free(mp_bh, &conf->pool); } static void multipath_end_request(struct bio *bio) @@ -117,7 +117,7 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio) return true; } - mp_bh = mempool_alloc(conf->pool, GFP_NOIO); + mp_bh = mempool_alloc(&conf->pool, GFP_NOIO); mp_bh->master_bio = bio; mp_bh->mddev = mddev; @@ -125,7 +125,7 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio) mp_bh->path = multipath_map(conf); if (mp_bh->path < 0) { bio_io_error(bio); - mempool_free(mp_bh, conf->pool); + mempool_free(mp_bh, &conf->pool); return true; } multipath = conf->multipaths + mp_bh->path; @@ -378,6 +378,7 @@ static int multipath_run (struct mddev *mddev) struct multipath_info *disk; struct md_rdev *rdev; int working_disks; + int ret; if (md_check_no_bitmap(mddev)) return -EINVAL; @@ -431,9 +432,9 @@ static int multipath_run (struct mddev *mddev) } mddev->degraded = conf->raid_disks - working_disks; - conf->pool = mempool_create_kmalloc_pool(NR_RESERVED_BUFS, - sizeof(struct multipath_bh)); - if (conf->pool == NULL) + ret = mempool_init_kmalloc_pool(&conf->pool, NR_RESERVED_BUFS, + sizeof(struct multipath_bh)); + if (ret) goto out_free_conf; mddev->thread = md_register_thread(multipathd, mddev, @@ -455,7 +456,7 @@ static int multipath_run (struct mddev *mddev) return 0; out_free_conf: - mempool_destroy(conf->pool); + mempool_exit(&conf->pool); kfree(conf->multipaths); kfree(conf); mddev->private = NULL; @@ -467,7 +468,7 @@ static void multipath_free(struct mddev *mddev, void *priv) { struct mpconf *conf = priv; - mempool_destroy(conf->pool); + mempool_exit(&conf->pool); kfree(conf->multipaths); kfree(conf); } diff --git a/drivers/md/md-multipath.h b/drivers/md/md-multipath.h index 0adb941f485a..b3099e5fc4d7 100644 --- a/drivers/md/md-multipath.h +++ b/drivers/md/md-multipath.h @@ -13,7 +13,7 @@ struct mpconf { spinlock_t device_lock; struct list_head retry_list; - mempool_t *pool; + mempool_t pool; }; /* diff --git a/drivers/md/md.c b/drivers/md/md.c index c208c01f63a5..fc692b7128bb 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -193,10 +193,10 @@ struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, { struct bio *b; - if (!mddev || !mddev->bio_set) + if (!mddev || !bioset_initialized(&mddev->bio_set)) return bio_alloc(gfp_mask, nr_iovecs); - b = bio_alloc_bioset(gfp_mask, nr_iovecs, mddev->bio_set); + b = bio_alloc_bioset(gfp_mask, nr_iovecs, &mddev->bio_set); if (!b) return NULL; return b; @@ -205,10 +205,10 @@ EXPORT_SYMBOL_GPL(bio_alloc_mddev); static struct bio *md_bio_alloc_sync(struct mddev *mddev) { - if (!mddev || !mddev->sync_set) + if (!mddev || !bioset_initialized(&mddev->sync_set)) return bio_alloc(GFP_NOIO, 1); - return bio_alloc_bioset(GFP_NOIO, 1, mddev->sync_set); + return bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set); } /* @@ -510,7 +510,10 @@ static void mddev_delayed_delete(struct work_struct *ws); static void mddev_put(struct mddev *mddev) { - struct bio_set *bs = NULL, *sync_bs = NULL; + struct bio_set bs, sync_bs; + + memset(&bs, 0, sizeof(bs)); + memset(&sync_bs, 0, sizeof(sync_bs)); if (!atomic_dec_and_lock(&mddev->active, &all_mddevs_lock)) return; @@ -521,8 +524,8 @@ static void mddev_put(struct mddev *mddev) list_del_init(&mddev->all_mddevs); bs = mddev->bio_set; sync_bs = mddev->sync_set; - mddev->bio_set = NULL; - mddev->sync_set = NULL; + memset(&mddev->bio_set, 0, sizeof(mddev->bio_set)); + memset(&mddev->sync_set, 0, sizeof(mddev->sync_set)); if (mddev->gendisk) { /* We did a probe so need to clean up. Call * queue_work inside the spinlock so that @@ -535,10 +538,8 @@ static void mddev_put(struct mddev *mddev) kfree(mddev); } spin_unlock(&all_mddevs_lock); - if (bs) - bioset_free(bs); - if (sync_bs) - bioset_free(sync_bs); + bioset_exit(&bs); + bioset_exit(&sync_bs); } static void md_safemode_timeout(struct timer_list *t); @@ -2123,7 +2124,7 @@ int md_integrity_register(struct mddev *mddev) bdev_get_integrity(reference->bdev)); pr_debug("md: data integrity enabled on %s\n", mdname(mddev)); - if (bioset_integrity_create(mddev->bio_set, BIO_POOL_SIZE)) { + if (bioset_integrity_create(&mddev->bio_set, BIO_POOL_SIZE)) { pr_err("md: failed to create integrity pool for %s\n", mdname(mddev)); return -EINVAL; @@ -5497,17 +5498,15 @@ int md_run(struct mddev *mddev) sysfs_notify_dirent_safe(rdev->sysfs_state); } - if (mddev->bio_set == NULL) { - mddev->bio_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); - if (!mddev->bio_set) - return -ENOMEM; + if (!bioset_initialized(&mddev->bio_set)) { + err = bioset_init(&mddev->bio_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); + if (err) + return err; } - if (mddev->sync_set == NULL) { - mddev->sync_set = bioset_create(BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); - if (!mddev->sync_set) { - err = -ENOMEM; + if (!bioset_initialized(&mddev->sync_set)) { + err = bioset_init(&mddev->sync_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); + if (err) goto abort; - } } spin_lock(&pers_lock); @@ -5668,14 +5667,8 @@ int md_run(struct mddev *mddev) return 0; abort: - if (mddev->bio_set) { - bioset_free(mddev->bio_set); - mddev->bio_set = NULL; - } - if (mddev->sync_set) { - bioset_free(mddev->sync_set); - mddev->sync_set = NULL; - } + bioset_exit(&mddev->bio_set); + bioset_exit(&mddev->sync_set); return err; } @@ -5888,14 +5881,8 @@ void md_stop(struct mddev *mddev) * This is called from dm-raid */ __md_stop(mddev); - if (mddev->bio_set) { - bioset_free(mddev->bio_set); - mddev->bio_set = NULL; - } - if (mddev->sync_set) { - bioset_free(mddev->sync_set); - mddev->sync_set = NULL; - } + bioset_exit(&mddev->bio_set); + bioset_exit(&mddev->sync_set); } EXPORT_SYMBOL_GPL(md_stop); diff --git a/drivers/md/md.h b/drivers/md/md.h index fbc925cce810..3507cab22cb6 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -452,8 +452,8 @@ struct mddev { struct attribute_group *to_remove; - struct bio_set *bio_set; - struct bio_set *sync_set; /* for sync operations like + struct bio_set bio_set; + struct bio_set sync_set; /* for sync operations like * metadata and bitmap writes */ diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 584c10347267..65ae47a02218 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -479,7 +479,7 @@ static void raid0_handle_discard(struct mddev *mddev, struct bio *bio) if (bio_end_sector(bio) > zone->zone_end) { struct bio *split = bio_split(bio, zone->zone_end - bio->bi_iter.bi_sector, GFP_NOIO, - mddev->bio_set); + &mddev->bio_set); bio_chain(split, bio); generic_make_request(bio); bio = split; @@ -582,7 +582,8 @@ static bool raid0_make_request(struct mddev *mddev, struct bio *bio) sector = bio_sector; if (sectors < bio_sectors(bio)) { - struct bio *split = bio_split(bio, sectors, GFP_NOIO, mddev->bio_set); + struct bio *split = bio_split(bio, sectors, GFP_NOIO, + &mddev->bio_set); bio_chain(split, bio); generic_make_request(bio); bio = split; diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index e9e3308cb0a7..bad28520719b 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -221,7 +221,7 @@ static void free_r1bio(struct r1bio *r1_bio) struct r1conf *conf = r1_bio->mddev->private; put_all_bios(conf, r1_bio); - mempool_free(r1_bio, conf->r1bio_pool); + mempool_free(r1_bio, &conf->r1bio_pool); } static void put_buf(struct r1bio *r1_bio) @@ -236,7 +236,7 @@ static void put_buf(struct r1bio *r1_bio) rdev_dec_pending(conf->mirrors[i].rdev, r1_bio->mddev); } - mempool_free(r1_bio, conf->r1buf_pool); + mempool_free(r1_bio, &conf->r1buf_pool); lower_barrier(conf, sect); } @@ -1178,7 +1178,7 @@ alloc_r1bio(struct mddev *mddev, struct bio *bio) struct r1conf *conf = mddev->private; struct r1bio *r1_bio; - r1_bio = mempool_alloc(conf->r1bio_pool, GFP_NOIO); + r1_bio = mempool_alloc(&conf->r1bio_pool, GFP_NOIO); /* Ensure no bio records IO_BLOCKED */ memset(r1_bio->bios, 0, conf->raid_disks * sizeof(r1_bio->bios[0])); init_r1bio(r1_bio, mddev, bio); @@ -1268,7 +1268,7 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, if (max_sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, max_sectors, - gfp, conf->bio_split); + gfp, &conf->bio_split); bio_chain(split, bio); generic_make_request(bio); bio = split; @@ -1278,7 +1278,7 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio, r1_bio->read_disk = rdisk; - read_bio = bio_clone_fast(bio, gfp, mddev->bio_set); + read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set); r1_bio->bios[rdisk] = read_bio; @@ -1439,7 +1439,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, if (max_sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, max_sectors, - GFP_NOIO, conf->bio_split); + GFP_NOIO, &conf->bio_split); bio_chain(split, bio); generic_make_request(bio); bio = split; @@ -1479,9 +1479,9 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio, if (r1_bio->behind_master_bio) mbio = bio_clone_fast(r1_bio->behind_master_bio, - GFP_NOIO, mddev->bio_set); + GFP_NOIO, &mddev->bio_set); else - mbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set); + mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set); if (r1_bio->behind_master_bio) { if (test_bit(WriteMostly, &conf->mirrors[i].rdev->flags)) @@ -1657,8 +1657,7 @@ static void close_sync(struct r1conf *conf) _allow_barrier(conf, idx); } - mempool_destroy(conf->r1buf_pool); - conf->r1buf_pool = NULL; + mempool_exit(&conf->r1buf_pool); } static int raid1_spare_active(struct mddev *mddev) @@ -2348,10 +2347,10 @@ static int narrow_write_error(struct r1bio *r1_bio, int i) if (test_bit(R1BIO_BehindIO, &r1_bio->state)) { wbio = bio_clone_fast(r1_bio->behind_master_bio, GFP_NOIO, - mddev->bio_set); + &mddev->bio_set); } else { wbio = bio_clone_fast(r1_bio->master_bio, GFP_NOIO, - mddev->bio_set); + &mddev->bio_set); } bio_set_op_attrs(wbio, REQ_OP_WRITE, 0); @@ -2564,17 +2563,15 @@ static int init_resync(struct r1conf *conf) int buffs; buffs = RESYNC_WINDOW / RESYNC_BLOCK_SIZE; - BUG_ON(conf->r1buf_pool); - conf->r1buf_pool = mempool_create(buffs, r1buf_pool_alloc, r1buf_pool_free, - conf->poolinfo); - if (!conf->r1buf_pool) - return -ENOMEM; - return 0; + BUG_ON(mempool_initialized(&conf->r1buf_pool)); + + return mempool_init(&conf->r1buf_pool, buffs, r1buf_pool_alloc, + r1buf_pool_free, conf->poolinfo); } static struct r1bio *raid1_alloc_init_r1buf(struct r1conf *conf) { - struct r1bio *r1bio = mempool_alloc(conf->r1buf_pool, GFP_NOIO); + struct r1bio *r1bio = mempool_alloc(&conf->r1buf_pool, GFP_NOIO); struct resync_pages *rps; struct bio *bio; int i; @@ -2617,7 +2614,7 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr, int idx = sector_to_idx(sector_nr); int page_idx = 0; - if (!conf->r1buf_pool) + if (!mempool_initialized(&conf->r1buf_pool)) if (init_resync(conf)) return 0; @@ -2953,14 +2950,13 @@ static struct r1conf *setup_conf(struct mddev *mddev) if (!conf->poolinfo) goto abort; conf->poolinfo->raid_disks = mddev->raid_disks * 2; - conf->r1bio_pool = mempool_create(NR_RAID1_BIOS, r1bio_pool_alloc, - r1bio_pool_free, - conf->poolinfo); - if (!conf->r1bio_pool) + err = mempool_init(&conf->r1bio_pool, NR_RAID1_BIOS, r1bio_pool_alloc, + r1bio_pool_free, conf->poolinfo); + if (err) goto abort; - conf->bio_split = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!conf->bio_split) + err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); + if (err) goto abort; conf->poolinfo->mddev = mddev; @@ -3033,7 +3029,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) abort: if (conf) { - mempool_destroy(conf->r1bio_pool); + mempool_exit(&conf->r1bio_pool); kfree(conf->mirrors); safe_put_page(conf->tmppage); kfree(conf->poolinfo); @@ -3041,8 +3037,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) kfree(conf->nr_waiting); kfree(conf->nr_queued); kfree(conf->barrier); - if (conf->bio_split) - bioset_free(conf->bio_split); + bioset_exit(&conf->bio_split); kfree(conf); } return ERR_PTR(err); @@ -3144,7 +3139,7 @@ static void raid1_free(struct mddev *mddev, void *priv) { struct r1conf *conf = priv; - mempool_destroy(conf->r1bio_pool); + mempool_exit(&conf->r1bio_pool); kfree(conf->mirrors); safe_put_page(conf->tmppage); kfree(conf->poolinfo); @@ -3152,8 +3147,7 @@ static void raid1_free(struct mddev *mddev, void *priv) kfree(conf->nr_waiting); kfree(conf->nr_queued); kfree(conf->barrier); - if (conf->bio_split) - bioset_free(conf->bio_split); + bioset_exit(&conf->bio_split); kfree(conf); } @@ -3199,13 +3193,17 @@ static int raid1_reshape(struct mddev *mddev) * At the same time, we "pack" the devices so that all the missing * devices have the higher raid_disk numbers. */ - mempool_t *newpool, *oldpool; + mempool_t newpool, oldpool; struct pool_info *newpoolinfo; struct raid1_info *newmirrors; struct r1conf *conf = mddev->private; int cnt, raid_disks; unsigned long flags; int d, d2; + int ret; + + memset(&newpool, 0, sizeof(newpool)); + memset(&oldpool, 0, sizeof(oldpool)); /* Cannot change chunk_size, layout, or level */ if (mddev->chunk_sectors != mddev->new_chunk_sectors || @@ -3237,17 +3235,17 @@ static int raid1_reshape(struct mddev *mddev) newpoolinfo->mddev = mddev; newpoolinfo->raid_disks = raid_disks * 2; - newpool = mempool_create(NR_RAID1_BIOS, r1bio_pool_alloc, - r1bio_pool_free, newpoolinfo); - if (!newpool) { + ret = mempool_init(&newpool, NR_RAID1_BIOS, r1bio_pool_alloc, + r1bio_pool_free, newpoolinfo); + if (ret) { kfree(newpoolinfo); - return -ENOMEM; + return ret; } newmirrors = kzalloc(sizeof(struct raid1_info) * raid_disks * 2, GFP_KERNEL); if (!newmirrors) { kfree(newpoolinfo); - mempool_destroy(newpool); + mempool_exit(&newpool); return -ENOMEM; } @@ -3287,7 +3285,7 @@ static int raid1_reshape(struct mddev *mddev) set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); md_wakeup_thread(mddev->thread); - mempool_destroy(oldpool); + mempool_exit(&oldpool); return 0; } diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index eb84bc68e2fd..e7ccad898736 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -118,10 +118,10 @@ struct r1conf { * mempools - it changes when the array grows or shrinks */ struct pool_info *poolinfo; - mempool_t *r1bio_pool; - mempool_t *r1buf_pool; + mempool_t r1bio_pool; + mempool_t r1buf_pool; - struct bio_set *bio_split; + struct bio_set bio_split; /* temporary buffer to synchronous IO when attempting to repair * a read error. diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 3c60774c8430..37d4b236b81b 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -291,14 +291,14 @@ static void free_r10bio(struct r10bio *r10_bio) struct r10conf *conf = r10_bio->mddev->private; put_all_bios(conf, r10_bio); - mempool_free(r10_bio, conf->r10bio_pool); + mempool_free(r10_bio, &conf->r10bio_pool); } static void put_buf(struct r10bio *r10_bio) { struct r10conf *conf = r10_bio->mddev->private; - mempool_free(r10_bio, conf->r10buf_pool); + mempool_free(r10_bio, &conf->r10buf_pool); lower_barrier(conf); } @@ -1204,7 +1204,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio, (unsigned long long)r10_bio->sector); if (max_sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, max_sectors, - gfp, conf->bio_split); + gfp, &conf->bio_split); bio_chain(split, bio); generic_make_request(bio); bio = split; @@ -1213,7 +1213,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio, } slot = r10_bio->read_slot; - read_bio = bio_clone_fast(bio, gfp, mddev->bio_set); + read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set); r10_bio->devs[slot].bio = read_bio; r10_bio->devs[slot].rdev = rdev; @@ -1261,7 +1261,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio, } else rdev = conf->mirrors[devnum].rdev; - mbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set); + mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set); if (replacement) r10_bio->devs[n_copy].repl_bio = mbio; else @@ -1509,7 +1509,7 @@ retry_write: if (r10_bio->sectors < bio_sectors(bio)) { struct bio *split = bio_split(bio, r10_bio->sectors, - GFP_NOIO, conf->bio_split); + GFP_NOIO, &conf->bio_split); bio_chain(split, bio); generic_make_request(bio); bio = split; @@ -1533,7 +1533,7 @@ static void __make_request(struct mddev *mddev, struct bio *bio, int sectors) struct r10conf *conf = mddev->private; struct r10bio *r10_bio; - r10_bio = mempool_alloc(conf->r10bio_pool, GFP_NOIO); + r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO); r10_bio->master_bio = bio; r10_bio->sectors = sectors; @@ -1732,8 +1732,7 @@ static void close_sync(struct r10conf *conf) wait_barrier(conf); allow_barrier(conf); - mempool_destroy(conf->r10buf_pool); - conf->r10buf_pool = NULL; + mempool_exit(&conf->r10buf_pool); } static int raid10_spare_active(struct mddev *mddev) @@ -2583,7 +2582,7 @@ static int narrow_write_error(struct r10bio *r10_bio, int i) if (sectors > sect_to_write) sectors = sect_to_write; /* Write at 'sector' for 'sectors' */ - wbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set); + wbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set); bio_trim(wbio, sector - bio->bi_iter.bi_sector, sectors); wsector = r10_bio->devs[i].addr + (sector - r10_bio->sector); wbio->bi_iter.bi_sector = wsector + @@ -2816,25 +2815,25 @@ static void raid10d(struct md_thread *thread) static int init_resync(struct r10conf *conf) { - int buffs; - int i; + int ret, buffs, i; buffs = RESYNC_WINDOW / RESYNC_BLOCK_SIZE; - BUG_ON(conf->r10buf_pool); + BUG_ON(mempool_initialized(&conf->r10buf_pool)); conf->have_replacement = 0; for (i = 0; i < conf->geo.raid_disks; i++) if (conf->mirrors[i].replacement) conf->have_replacement = 1; - conf->r10buf_pool = mempool_create(buffs, r10buf_pool_alloc, r10buf_pool_free, conf); - if (!conf->r10buf_pool) - return -ENOMEM; + ret = mempool_init(&conf->r10buf_pool, buffs, + r10buf_pool_alloc, r10buf_pool_free, conf); + if (ret) + return ret; conf->next_resync = 0; return 0; } static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf) { - struct r10bio *r10bio = mempool_alloc(conf->r10buf_pool, GFP_NOIO); + struct r10bio *r10bio = mempool_alloc(&conf->r10buf_pool, GFP_NOIO); struct rsync_pages *rp; struct bio *bio; int nalloc; @@ -2945,7 +2944,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr, sector_t chunk_mask = conf->geo.chunk_mask; int page_idx = 0; - if (!conf->r10buf_pool) + if (!mempool_initialized(&conf->r10buf_pool)) if (init_resync(conf)) return 0; @@ -3699,13 +3698,13 @@ static struct r10conf *setup_conf(struct mddev *mddev) conf->geo = geo; conf->copies = copies; - conf->r10bio_pool = mempool_create(NR_RAID10_BIOS, r10bio_pool_alloc, - r10bio_pool_free, conf); - if (!conf->r10bio_pool) + err = mempool_init(&conf->r10bio_pool, NR_RAID10_BIOS, r10bio_pool_alloc, + r10bio_pool_free, conf); + if (err) goto out; - conf->bio_split = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!conf->bio_split) + err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); + if (err) goto out; calc_sectors(conf, mddev->dev_sectors); @@ -3733,6 +3732,7 @@ static struct r10conf *setup_conf(struct mddev *mddev) init_waitqueue_head(&conf->wait_barrier); atomic_set(&conf->nr_pending, 0); + err = -ENOMEM; conf->thread = md_register_thread(raid10d, mddev, "raid10"); if (!conf->thread) goto out; @@ -3742,11 +3742,10 @@ static struct r10conf *setup_conf(struct mddev *mddev) out: if (conf) { - mempool_destroy(conf->r10bio_pool); + mempool_exit(&conf->r10bio_pool); kfree(conf->mirrors); safe_put_page(conf->tmppage); - if (conf->bio_split) - bioset_free(conf->bio_split); + bioset_exit(&conf->bio_split); kfree(conf); } return ERR_PTR(err); @@ -3953,7 +3952,7 @@ static int raid10_run(struct mddev *mddev) out_free_conf: md_unregister_thread(&mddev->thread); - mempool_destroy(conf->r10bio_pool); + mempool_exit(&conf->r10bio_pool); safe_put_page(conf->tmppage); kfree(conf->mirrors); kfree(conf); @@ -3966,13 +3965,12 @@ static void raid10_free(struct mddev *mddev, void *priv) { struct r10conf *conf = priv; - mempool_destroy(conf->r10bio_pool); + mempool_exit(&conf->r10bio_pool); safe_put_page(conf->tmppage); kfree(conf->mirrors); kfree(conf->mirrors_old); kfree(conf->mirrors_new); - if (conf->bio_split) - bioset_free(conf->bio_split); + bioset_exit(&conf->bio_split); kfree(conf); } @@ -4543,7 +4541,7 @@ read_more: * on all the target devices. */ // FIXME - mempool_free(r10_bio, conf->r10buf_pool); + mempool_free(r10_bio, &conf->r10buf_pool); set_bit(MD_RECOVERY_INTR, &mddev->recovery); return sectors_done; } diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index e2e8840de9bf..d3eaaf3eb1bc 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -93,10 +93,10 @@ struct r10conf { */ wait_queue_head_t wait_barrier; - mempool_t *r10bio_pool; - mempool_t *r10buf_pool; + mempool_t r10bio_pool; + mempool_t r10buf_pool; struct page *tmppage; - struct bio_set *bio_split; + struct bio_set bio_split; /* When taking over an array from a different personality, we store * the new thread here until we fully activate the array. diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c index 3c65f52b68f5..2b775abf377b 100644 --- a/drivers/md/raid5-cache.c +++ b/drivers/md/raid5-cache.c @@ -125,9 +125,9 @@ struct r5l_log { struct list_head no_mem_stripes; /* pending stripes, -ENOMEM */ struct kmem_cache *io_kc; - mempool_t *io_pool; - struct bio_set *bs; - mempool_t *meta_pool; + mempool_t io_pool; + struct bio_set bs; + mempool_t meta_pool; struct md_thread *reclaim_thread; unsigned long reclaim_target; /* number of space that need to be @@ -579,7 +579,7 @@ static void r5l_log_endio(struct bio *bio) md_error(log->rdev->mddev, log->rdev); bio_put(bio); - mempool_free(io->meta_page, log->meta_pool); + mempool_free(io->meta_page, &log->meta_pool); spin_lock_irqsave(&log->io_list_lock, flags); __r5l_set_io_unit_state(io, IO_UNIT_IO_END); @@ -748,7 +748,7 @@ static void r5l_submit_current_io(struct r5l_log *log) static struct bio *r5l_bio_alloc(struct r5l_log *log) { - struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, log->bs); + struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, &log->bs); bio_set_op_attrs(bio, REQ_OP_WRITE, 0); bio_set_dev(bio, log->rdev->bdev); @@ -780,7 +780,7 @@ static struct r5l_io_unit *r5l_new_meta(struct r5l_log *log) struct r5l_io_unit *io; struct r5l_meta_block *block; - io = mempool_alloc(log->io_pool, GFP_ATOMIC); + io = mempool_alloc(&log->io_pool, GFP_ATOMIC); if (!io) return NULL; memset(io, 0, sizeof(*io)); @@ -791,7 +791,7 @@ static struct r5l_io_unit *r5l_new_meta(struct r5l_log *log) bio_list_init(&io->flush_barriers); io->state = IO_UNIT_RUNNING; - io->meta_page = mempool_alloc(log->meta_pool, GFP_NOIO); + io->meta_page = mempool_alloc(&log->meta_pool, GFP_NOIO); block = page_address(io->meta_page); clear_page(block); block->magic = cpu_to_le32(R5LOG_MAGIC); @@ -1223,7 +1223,7 @@ static bool r5l_complete_finished_ios(struct r5l_log *log) log->next_checkpoint = io->log_start; list_del(&io->log_sibling); - mempool_free(io, log->io_pool); + mempool_free(io, &log->io_pool); r5l_run_no_mem_stripe(log); found = true; @@ -1647,7 +1647,7 @@ static int r5l_recovery_allocate_ra_pool(struct r5l_log *log, { struct page *page; - ctx->ra_bio = bio_alloc_bioset(GFP_KERNEL, BIO_MAX_PAGES, log->bs); + ctx->ra_bio = bio_alloc_bioset(GFP_KERNEL, BIO_MAX_PAGES, &log->bs); if (!ctx->ra_bio) return -ENOMEM; @@ -3066,6 +3066,7 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev) struct request_queue *q = bdev_get_queue(rdev->bdev); struct r5l_log *log; char b[BDEVNAME_SIZE]; + int ret; pr_debug("md/raid:%s: using device %s as journal\n", mdname(conf->mddev), bdevname(rdev->bdev, b)); @@ -3111,16 +3112,16 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev) if (!log->io_kc) goto io_kc; - log->io_pool = mempool_create_slab_pool(R5L_POOL_SIZE, log->io_kc); - if (!log->io_pool) + ret = mempool_init_slab_pool(&log->io_pool, R5L_POOL_SIZE, log->io_kc); + if (ret) goto io_pool; - log->bs = bioset_create(R5L_POOL_SIZE, 0, BIOSET_NEED_BVECS); - if (!log->bs) + ret = bioset_init(&log->bs, R5L_POOL_SIZE, 0, BIOSET_NEED_BVECS); + if (ret) goto io_bs; - log->meta_pool = mempool_create_page_pool(R5L_POOL_SIZE, 0); - if (!log->meta_pool) + ret = mempool_init_page_pool(&log->meta_pool, R5L_POOL_SIZE, 0); + if (ret) goto out_mempool; spin_lock_init(&log->tree_lock); @@ -3155,11 +3156,11 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev) rcu_assign_pointer(conf->log, NULL); md_unregister_thread(&log->reclaim_thread); reclaim_thread: - mempool_destroy(log->meta_pool); + mempool_exit(&log->meta_pool); out_mempool: - bioset_free(log->bs); + bioset_exit(&log->bs); io_bs: - mempool_destroy(log->io_pool); + mempool_exit(&log->io_pool); io_pool: kmem_cache_destroy(log->io_kc); io_kc: @@ -3178,9 +3179,9 @@ void r5l_exit_log(struct r5conf *conf) wake_up(&conf->mddev->sb_wait); flush_work(&log->disable_writeback_work); md_unregister_thread(&log->reclaim_thread); - mempool_destroy(log->meta_pool); - bioset_free(log->bs); - mempool_destroy(log->io_pool); + mempool_exit(&log->meta_pool); + bioset_exit(&log->bs); + mempool_exit(&log->io_pool); kmem_cache_destroy(log->io_kc); kfree(log); } diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c index 42890a08375b..3a7c36326589 100644 --- a/drivers/md/raid5-ppl.c +++ b/drivers/md/raid5-ppl.c @@ -105,9 +105,9 @@ struct ppl_conf { atomic64_t seq; /* current log write sequence number */ struct kmem_cache *io_kc; - mempool_t *io_pool; - struct bio_set *bs; - struct bio_set *flush_bs; + mempool_t io_pool; + struct bio_set bs; + struct bio_set flush_bs; /* used only for recovery */ int recovered_entries; @@ -244,7 +244,7 @@ static struct ppl_io_unit *ppl_new_iounit(struct ppl_log *log, struct ppl_header *pplhdr; struct page *header_page; - io = mempool_alloc(ppl_conf->io_pool, GFP_NOWAIT); + io = mempool_alloc(&ppl_conf->io_pool, GFP_NOWAIT); if (!io) return NULL; @@ -503,7 +503,7 @@ static void ppl_submit_iounit(struct ppl_io_unit *io) struct bio *prev = bio; bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_PAGES, - ppl_conf->bs); + &ppl_conf->bs); bio->bi_opf = prev->bi_opf; bio_copy_dev(bio, prev); bio->bi_iter.bi_sector = bio_end_sector(prev); @@ -570,7 +570,7 @@ static void ppl_io_unit_finished(struct ppl_io_unit *io) list_del(&io->log_sibling); spin_unlock(&log->io_list_lock); - mempool_free(io, ppl_conf->io_pool); + mempool_free(io, &ppl_conf->io_pool); spin_lock(&ppl_conf->no_mem_stripes_lock); if (!list_empty(&ppl_conf->no_mem_stripes)) { @@ -642,7 +642,7 @@ static void ppl_do_flush(struct ppl_io_unit *io) struct bio *bio; char b[BDEVNAME_SIZE]; - bio = bio_alloc_bioset(GFP_NOIO, 0, ppl_conf->flush_bs); + bio = bio_alloc_bioset(GFP_NOIO, 0, &ppl_conf->flush_bs); bio_set_dev(bio, bdev); bio->bi_private = io; bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH; @@ -1246,11 +1246,9 @@ static void __ppl_exit_log(struct ppl_conf *ppl_conf) kfree(ppl_conf->child_logs); - if (ppl_conf->bs) - bioset_free(ppl_conf->bs); - if (ppl_conf->flush_bs) - bioset_free(ppl_conf->flush_bs); - mempool_destroy(ppl_conf->io_pool); + bioset_exit(&ppl_conf->bs); + bioset_exit(&ppl_conf->flush_bs); + mempool_exit(&ppl_conf->io_pool); kmem_cache_destroy(ppl_conf->io_kc); kfree(ppl_conf); @@ -1387,24 +1385,18 @@ int ppl_init_log(struct r5conf *conf) goto err; } - ppl_conf->io_pool = mempool_create(conf->raid_disks, ppl_io_pool_alloc, - ppl_io_pool_free, ppl_conf->io_kc); - if (!ppl_conf->io_pool) { - ret = -ENOMEM; + ret = mempool_init(&ppl_conf->io_pool, conf->raid_disks, ppl_io_pool_alloc, + ppl_io_pool_free, ppl_conf->io_kc); + if (ret) goto err; - } - ppl_conf->bs = bioset_create(conf->raid_disks, 0, BIOSET_NEED_BVECS); - if (!ppl_conf->bs) { - ret = -ENOMEM; + ret = bioset_init(&ppl_conf->bs, conf->raid_disks, 0, BIOSET_NEED_BVECS); + if (ret) goto err; - } - ppl_conf->flush_bs = bioset_create(conf->raid_disks, 0, 0); - if (!ppl_conf->flush_bs) { - ret = -ENOMEM; + ret = bioset_init(&ppl_conf->flush_bs, conf->raid_disks, 0, 0); + if (ret) goto err; - } ppl_conf->count = conf->raid_disks; ppl_conf->child_logs = kcalloc(ppl_conf->count, sizeof(struct ppl_log), diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index be117d0a65a8..a2e64989b01f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5192,7 +5192,7 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio) /* * use bio_clone_fast to make a copy of the bio */ - align_bi = bio_clone_fast(raid_bio, GFP_NOIO, mddev->bio_set); + align_bi = bio_clone_fast(raid_bio, GFP_NOIO, &mddev->bio_set); if (!align_bi) return 0; /* @@ -5277,7 +5277,7 @@ static struct bio *chunk_aligned_read(struct mddev *mddev, struct bio *raid_bio) if (sectors < bio_sectors(raid_bio)) { struct r5conf *conf = mddev->private; - split = bio_split(raid_bio, sectors, GFP_NOIO, conf->bio_split); + split = bio_split(raid_bio, sectors, GFP_NOIO, &conf->bio_split); bio_chain(split, raid_bio); generic_make_request(raid_bio); raid_bio = split; @@ -6773,8 +6773,7 @@ static void free_conf(struct r5conf *conf) if (conf->disks[i].extra_page) put_page(conf->disks[i].extra_page); kfree(conf->disks); - if (conf->bio_split) - bioset_free(conf->bio_split); + bioset_exit(&conf->bio_split); kfree(conf->stripe_hashtbl); kfree(conf->pending_data); kfree(conf); @@ -6853,6 +6852,7 @@ static struct r5conf *setup_conf(struct mddev *mddev) int i; int group_cnt, worker_cnt_per_group; struct r5worker_group *new_group; + int ret; if (mddev->new_level != 5 && mddev->new_level != 4 @@ -6950,8 +6950,8 @@ static struct r5conf *setup_conf(struct mddev *mddev) goto abort; } - conf->bio_split = bioset_create(BIO_POOL_SIZE, 0, 0); - if (!conf->bio_split) + ret = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0); + if (ret) goto abort; conf->mddev = mddev; diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index 3f8da26032ac..72e75ba6abf0 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -669,7 +669,7 @@ struct r5conf { int pool_size; /* number of disks in stripeheads in pool */ spinlock_t device_lock; struct disk_info *disks; - struct bio_set *bio_split; + struct bio_set bio_split; /* When taking over an array from a different personality, we store * the new thread here until we fully activate the array. diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c index fca36a4910c2..d697e1ad929c 100644 --- a/drivers/media/pci/saa7164/saa7164-core.c +++ b/drivers/media/pci/saa7164/saa7164-core.c @@ -1122,23 +1122,11 @@ static int saa7164_proc_show(struct seq_file *m, void *v) return 0; } -static int saa7164_proc_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, saa7164_proc_show, NULL); -} - -static const struct file_operations saa7164_proc_fops = { - .open = saa7164_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int saa7164_proc_create(void) { struct proc_dir_entry *pe; - pe = proc_create("saa7164", S_IRUGO, NULL, &saa7164_proc_fops); + pe = proc_create_single("saa7164", S_IRUGO, NULL, saa7164_proc_show); if (!pe) return -ENOMEM; diff --git a/drivers/media/pci/zoran/videocodec.c b/drivers/media/pci/zoran/videocodec.c index 5ff23ef89215..4427ae7126e2 100644 --- a/drivers/media/pci/zoran/videocodec.c +++ b/drivers/media/pci/zoran/videocodec.c @@ -344,19 +344,6 @@ static int proc_videocodecs_show(struct seq_file *m, void *v) return 0; } - -static int proc_videocodecs_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_videocodecs_show, NULL); -} - -static const struct file_operations videocodecs_proc_fops = { - .owner = THIS_MODULE, - .open = proc_videocodecs_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* ===================== */ @@ -373,7 +360,8 @@ videocodec_init (void) VIDEOCODEC_VERSION); #ifdef CONFIG_PROC_FS - videocodec_proc_entry = proc_create("videocodecs", 0, NULL, &videocodecs_proc_fops); + videocodec_proc_entry = proc_create_single("videocodecs", 0, NULL, + proc_videocodecs_show); if (!videocodec_proc_entry) { dprintk(1, KERN_ERR "videocodec: can't init procfs.\n"); } diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index 57b13dfbd21e..a15181fa45f7 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -2094,14 +2094,9 @@ static const struct block_device_operations msb_bdops = { static int msb_init_disk(struct memstick_dev *card) { struct msb_data *msb = memstick_get_drvdata(card); - struct memstick_host *host = card->host; int rc; - u64 limit = BLK_BOUNCE_HIGH; unsigned long capacity; - if (host->dev.dma_mask && *(host->dev.dma_mask)) - limit = *(host->dev.dma_mask); - mutex_lock(&msb_disk_lock); msb->disk_id = idr_alloc(&msb_disk_idr, card, 0, 256, GFP_KERNEL); mutex_unlock(&msb_disk_lock); @@ -2123,7 +2118,6 @@ static int msb_init_disk(struct memstick_dev *card) msb->queue->queuedata = card; - blk_queue_bounce_limit(msb->queue, limit); blk_queue_max_hw_sectors(msb->queue, MS_BLOCK_MAX_PAGES); blk_queue_max_segments(msb->queue, MS_BLOCK_MAX_SEGS); blk_queue_max_segment_size(msb->queue, diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c index 8897962781bb..5ee932631fae 100644 --- a/drivers/memstick/core/mspro_block.c +++ b/drivers/memstick/core/mspro_block.c @@ -1170,17 +1170,12 @@ static int mspro_block_init_card(struct memstick_dev *card) static int mspro_block_init_disk(struct memstick_dev *card) { struct mspro_block_data *msb = memstick_get_drvdata(card); - struct memstick_host *host = card->host; struct mspro_devinfo *dev_info = NULL; struct mspro_sys_info *sys_info = NULL; struct mspro_sys_attr *s_attr = NULL; int rc, disk_id; - u64 limit = BLK_BOUNCE_HIGH; unsigned long capacity; - if (host->dev.dma_mask && *(host->dev.dma_mask)) - limit = *(host->dev.dma_mask); - for (rc = 0; msb->attr_group.attrs[rc]; ++rc) { s_attr = mspro_from_sysfs_attr(msb->attr_group.attrs[rc]); @@ -1219,7 +1214,6 @@ static int mspro_block_init_disk(struct memstick_dev *card) msb->queue->queuedata = card; - blk_queue_bounce_limit(msb->queue, limit); blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES); blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS); blk_queue_max_segment_size(msb->queue, diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 51eb1b027963..a746ccdd630a 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -197,9 +197,9 @@ static int mpt_host_page_access_control(MPT_ADAPTER *ioc, u8 access_control_valu static int mpt_host_page_alloc(MPT_ADAPTER *ioc, pIOCInit_t ioc_init); #ifdef CONFIG_PROC_FS -static const struct file_operations mpt_summary_proc_fops; -static const struct file_operations mpt_version_proc_fops; -static const struct file_operations mpt_iocinfo_proc_fops; +static int mpt_summary_proc_show(struct seq_file *m, void *v); +static int mpt_version_proc_show(struct seq_file *m, void *v); +static int mpt_iocinfo_proc_show(struct seq_file *m, void *v); #endif static void mpt_get_fw_exp_ver(char *buf, MPT_ADAPTER *ioc); @@ -2040,8 +2040,10 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) */ dent = proc_mkdir(ioc->name, mpt_proc_root_dir); if (dent) { - proc_create_data("info", S_IRUGO, dent, &mpt_iocinfo_proc_fops, ioc); - proc_create_data("summary", S_IRUGO, dent, &mpt_summary_proc_fops, ioc); + proc_create_single_data("info", S_IRUGO, dent, + mpt_iocinfo_proc_show, ioc); + proc_create_single_data("summary", S_IRUGO, dent, + mpt_summary_proc_show, ioc); } #endif @@ -6606,8 +6608,10 @@ procmpt_create(void) if (mpt_proc_root_dir == NULL) return -ENOTDIR; - proc_create("summary", S_IRUGO, mpt_proc_root_dir, &mpt_summary_proc_fops); - proc_create("version", S_IRUGO, mpt_proc_root_dir, &mpt_version_proc_fops); + proc_create_single("summary", S_IRUGO, mpt_proc_root_dir, + mpt_summary_proc_show); + proc_create_single("version", S_IRUGO, mpt_proc_root_dir, + mpt_version_proc_show); return 0; } @@ -6646,19 +6650,6 @@ static int mpt_summary_proc_show(struct seq_file *m, void *v) return 0; } -static int mpt_summary_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mpt_summary_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations mpt_summary_proc_fops = { - .owner = THIS_MODULE, - .open = mpt_summary_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int mpt_version_proc_show(struct seq_file *m, void *v) { u8 cb_idx; @@ -6701,19 +6692,6 @@ static int mpt_version_proc_show(struct seq_file *m, void *v) return 0; } -static int mpt_version_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mpt_version_proc_show, NULL); -} - -static const struct file_operations mpt_version_proc_fops = { - .owner = THIS_MODULE, - .open = mpt_version_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int mpt_iocinfo_proc_show(struct seq_file *m, void *v) { MPT_ADAPTER *ioc = m->private; @@ -6793,19 +6771,6 @@ static int mpt_iocinfo_proc_show(struct seq_file *m, void *v) return 0; } - -static int mpt_iocinfo_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mpt_iocinfo_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations mpt_iocinfo_proc_fops = { - .owner = THIS_MODULE, - .open = mpt_iocinfo_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* CONFIG_PROC_FS } */ /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 86503f60468f..19a5aa70ecda 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1929,7 +1929,7 @@ static enum blk_eh_timer_return mptsas_eh_timed_out(struct scsi_cmnd *sc) MPT_SCSI_HOST *hd; MPT_ADAPTER *ioc; VirtDevice *vdevice; - enum blk_eh_timer_return rc = BLK_EH_NOT_HANDLED; + enum blk_eh_timer_return rc = BLK_EH_DONE; hd = shost_priv(sc->device->host); if (hd == NULL) { diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index d7f54e492aa6..c63e331738c1 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -279,8 +279,21 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode, adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2; adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC; - if (channel > 7) + /* + * Channels mapped through ADIN7: + * 7 - General purpose ADIN7 + * 16 - UID + * 17 - Die temperature + */ + if (channel > 7 && channel < 16) { adc1 |= MC13XXX_ADC1_ADSEL; + } else if (channel == 16) { + adc0 |= MC13XXX_ADC0_ADIN7SEL_UID; + channel = 7; + } else if (channel == 17) { + adc0 |= MC13XXX_ADC0_ADIN7SEL_DIE; + channel = 7; + } switch (mode) { case MC13XXX_ADC_MODE_TS: diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c index 4f7635922394..42ea2eccaee9 100644 --- a/drivers/misc/sgi-gru/gruprocfs.c +++ b/drivers/misc/sgi-gru/gruprocfs.c @@ -270,16 +270,6 @@ static int options_open(struct inode *inode, struct file *file) return single_open(file, options_show, NULL); } -static int cch_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &cch_seq_ops); -} - -static int gru_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &gru_seq_ops); -} - /* *INDENT-OFF* */ static const struct file_operations statistics_fops = { .open = statistics_open, @@ -305,73 +295,30 @@ static const struct file_operations options_fops = { .release = single_release, }; -static const struct file_operations cch_fops = { - .open = cch_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; -static const struct file_operations gru_fops = { - .open = gru_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static struct proc_entry { - char *name; - umode_t mode; - const struct file_operations *fops; - struct proc_dir_entry *entry; -} proc_files[] = { - {"statistics", 0644, &statistics_fops}, - {"mcs_statistics", 0644, &mcs_statistics_fops}, - {"debug_options", 0644, &options_fops}, - {"cch_status", 0444, &cch_fops}, - {"gru_status", 0444, &gru_fops}, - {NULL} -}; -/* *INDENT-ON* */ - static struct proc_dir_entry *proc_gru __read_mostly; -static int create_proc_file(struct proc_entry *p) -{ - p->entry = proc_create(p->name, p->mode, proc_gru, p->fops); - if (!p->entry) - return -1; - return 0; -} - -static void delete_proc_files(void) -{ - struct proc_entry *p; - - if (proc_gru) { - for (p = proc_files; p->name; p++) - if (p->entry) - remove_proc_entry(p->name, proc_gru); - proc_remove(proc_gru); - } -} - int gru_proc_init(void) { - struct proc_entry *p; - proc_gru = proc_mkdir("sgi_uv/gru", NULL); - - for (p = proc_files; p->name; p++) - if (create_proc_file(p)) - goto err; + if (!proc_gru) + return -1; + if (!proc_create("statistics", 0644, proc_gru, &statistics_fops)) + goto err; + if (!proc_create("mcs_statistics", 0644, proc_gru, &mcs_statistics_fops)) + goto err; + if (!proc_create("debug_options", 0644, proc_gru, &options_fops)) + goto err; + if (!proc_create_seq("cch_status", 0444, proc_gru, &cch_seq_ops)) + goto err; + if (!proc_create_seq("gru_status", 0444, proc_gru, &gru_seq_ops)) + goto err; return 0; - err: - delete_proc_files(); + remove_proc_subtree("sgi_uv/gru", NULL); return -1; } void gru_proc_exit(void) { - delete_proc_files(); + remove_proc_subtree("sgi_uv/gru", NULL); } diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 38a7586b00cc..d89e17829527 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -244,7 +244,7 @@ static ssize_t power_ro_lock_store(struct device *dev, mq = &md->queue; /* Dispatch locking to the block layer */ - req = blk_get_request(mq->queue, REQ_OP_DRV_OUT, __GFP_RECLAIM); + req = blk_get_request(mq->queue, REQ_OP_DRV_OUT, 0); if (IS_ERR(req)) { count = PTR_ERR(req); goto out_put; @@ -650,8 +650,7 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md, */ mq = &md->queue; req = blk_get_request(mq->queue, - idata->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, - __GFP_RECLAIM); + idata->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); if (IS_ERR(req)) { err = PTR_ERR(req); goto cmd_done; @@ -721,8 +720,7 @@ static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md, */ mq = &md->queue; req = blk_get_request(mq->queue, - idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, - __GFP_RECLAIM); + idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); if (IS_ERR(req)) { err = PTR_ERR(req); goto cmd_err; @@ -2750,7 +2748,7 @@ static int mmc_dbg_card_status_get(void *data, u64 *val) int ret; /* Ask the block layer about the card status */ - req = blk_get_request(mq->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + req = blk_get_request(mq->queue, REQ_OP_DRV_IN, 0); if (IS_ERR(req)) return PTR_ERR(req); req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_GET_CARD_STATUS; @@ -2786,7 +2784,7 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp) return -ENOMEM; /* Ask the block layer for the EXT CSD */ - req = blk_get_request(mq->queue, REQ_OP_DRV_IN, __GFP_RECLAIM); + req = blk_get_request(mq->queue, REQ_OP_DRV_IN, 0); if (IS_ERR(req)) { err = PTR_ERR(req); goto out_free; diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index 56e9a803db21..648eb6743ed5 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -111,8 +111,9 @@ static enum blk_eh_timer_return mmc_cqe_timed_out(struct request *req) __mmc_cqe_recovery_notifier(mq); return BLK_EH_RESET_TIMER; } - /* No timeout */ - return BLK_EH_HANDLED; + /* No timeout (XXX: huh? comment doesn't make much sense) */ + blk_mq_complete_request(req); + return BLK_EH_DONE; default: /* Timeout is handled by mmc core */ return BLK_EH_RESET_TIMER; diff --git a/drivers/mmc/core/sdio_uart.c b/drivers/mmc/core/sdio_uart.c index d3c91f412b69..25e113001a3c 100644 --- a/drivers/mmc/core/sdio_uart.c +++ b/drivers/mmc/core/sdio_uart.c @@ -1008,19 +1008,6 @@ static int sdio_uart_proc_show(struct seq_file *m, void *v) return 0; } -static int sdio_uart_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, sdio_uart_proc_show, NULL); -} - -static const struct file_operations sdio_uart_proc_fops = { - .owner = THIS_MODULE, - .open = sdio_uart_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static const struct tty_port_operations sdio_uart_port_ops = { .dtr_rts = uart_dtr_rts, .carrier_raised = uart_carrier_raised, @@ -1045,7 +1032,7 @@ static const struct tty_operations sdio_uart_ops = { .tiocmset = sdio_uart_tiocmset, .install = sdio_uart_install, .cleanup = sdio_uart_cleanup, - .proc_fops = &sdio_uart_proc_fops, + .proc_show = sdio_uart_proc_show, }; static struct tty_driver *sdio_uart_tty_driver; diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 6def5445e03e..57b02c4b3f63 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -81,6 +81,7 @@ config MTD_DATAFLASH_OTP config MTD_M25P80 tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)" depends on SPI_MASTER && MTD_SPI_NOR + select SPI_MEM help This enables access to most modern SPI flash chips, used for program and data storage. Series supported include Atmel AT26DF, diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index a4e18f6aaa33..e84563d2067f 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -24,12 +24,13 @@ #include <linux/mtd/partitions.h> #include <linux/spi/spi.h> +#include <linux/spi/spi-mem.h> #include <linux/spi/flash.h> #include <linux/mtd/spi-nor.h> #define MAX_CMD_SIZE 6 struct m25p { - struct spi_device *spi; + struct spi_mem *spimem; struct spi_nor spi_nor; u8 command[MAX_CMD_SIZE]; }; @@ -37,97 +38,68 @@ struct m25p { static int m25p80_read_reg(struct spi_nor *nor, u8 code, u8 *val, int len) { struct m25p *flash = nor->priv; - struct spi_device *spi = flash->spi; + struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(code, 1), + SPI_MEM_OP_NO_ADDR, + SPI_MEM_OP_NO_DUMMY, + SPI_MEM_OP_DATA_IN(len, val, 1)); int ret; - ret = spi_write_then_read(spi, &code, 1, val, len); + ret = spi_mem_exec_op(flash->spimem, &op); if (ret < 0) - dev_err(&spi->dev, "error %d reading %x\n", ret, code); + dev_err(&flash->spimem->spi->dev, "error %d reading %x\n", ret, + code); return ret; } -static void m25p_addr2cmd(struct spi_nor *nor, unsigned int addr, u8 *cmd) -{ - /* opcode is in cmd[0] */ - cmd[1] = addr >> (nor->addr_width * 8 - 8); - cmd[2] = addr >> (nor->addr_width * 8 - 16); - cmd[3] = addr >> (nor->addr_width * 8 - 24); - cmd[4] = addr >> (nor->addr_width * 8 - 32); -} - -static int m25p_cmdsz(struct spi_nor *nor) -{ - return 1 + nor->addr_width; -} - static int m25p80_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) { struct m25p *flash = nor->priv; - struct spi_device *spi = flash->spi; - - flash->command[0] = opcode; - if (buf) - memcpy(&flash->command[1], buf, len); + struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(opcode, 1), + SPI_MEM_OP_NO_ADDR, + SPI_MEM_OP_NO_DUMMY, + SPI_MEM_OP_DATA_OUT(len, buf, 1)); - return spi_write(spi, flash->command, len + 1); + return spi_mem_exec_op(flash->spimem, &op); } static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len, const u_char *buf) { struct m25p *flash = nor->priv; - struct spi_device *spi = flash->spi; - unsigned int inst_nbits, addr_nbits, data_nbits, data_idx; - struct spi_transfer t[3] = {}; - struct spi_message m; - int cmd_sz = m25p_cmdsz(nor); - ssize_t ret; + struct spi_mem_op op = + SPI_MEM_OP(SPI_MEM_OP_CMD(nor->program_opcode, 1), + SPI_MEM_OP_ADDR(nor->addr_width, to, 1), + SPI_MEM_OP_DUMMY(0, 1), + SPI_MEM_OP_DATA_OUT(len, buf, 1)); + size_t remaining = len; + int ret; /* get transfer protocols. */ - inst_nbits = spi_nor_get_protocol_inst_nbits(nor->write_proto); - addr_nbits = spi_nor_get_protocol_addr_nbits(nor->write_proto); - data_nbits = spi_nor_get_protocol_data_nbits(nor->write_proto); - - spi_message_init(&m); + op.cmd.buswidth = spi_nor_get_protocol_inst_nbits(nor->write_proto); + op.addr.buswidth = spi_nor_get_protocol_addr_nbits(nor->write_proto); + op.dummy.buswidth = op.addr.buswidth; + op.data.buswidth = spi_nor_get_protocol_data_nbits(nor->write_proto); if (nor->program_opcode == SPINOR_OP_AAI_WP && nor->sst_write_second) - cmd_sz = 1; - - flash->command[0] = nor->program_opcode; - m25p_addr2cmd(nor, to, flash->command); + op.addr.nbytes = 0; - t[0].tx_buf = flash->command; - t[0].tx_nbits = inst_nbits; - t[0].len = cmd_sz; - spi_message_add_tail(&t[0], &m); - - /* split the op code and address bytes into two transfers if needed. */ - data_idx = 1; - if (addr_nbits != inst_nbits) { - t[0].len = 1; + while (remaining) { + op.data.nbytes = remaining < UINT_MAX ? remaining : UINT_MAX; + ret = spi_mem_adjust_op_size(flash->spimem, &op); + if (ret) + return ret; - t[1].tx_buf = &flash->command[1]; - t[1].tx_nbits = addr_nbits; - t[1].len = cmd_sz - 1; - spi_message_add_tail(&t[1], &m); + ret = spi_mem_exec_op(flash->spimem, &op); + if (ret) + return ret; - data_idx = 2; + op.addr.val += op.data.nbytes; + remaining -= op.data.nbytes; + op.data.buf.out += op.data.nbytes; } - t[data_idx].tx_buf = buf; - t[data_idx].tx_nbits = data_nbits; - t[data_idx].len = len; - spi_message_add_tail(&t[data_idx], &m); - - ret = spi_sync(spi, &m); - if (ret) - return ret; - - ret = m.actual_length - cmd_sz; - if (ret < 0) - return -EIO; - return ret; + return len; } /* @@ -138,92 +110,39 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len, u_char *buf) { struct m25p *flash = nor->priv; - struct spi_device *spi = flash->spi; - unsigned int inst_nbits, addr_nbits, data_nbits, data_idx; - struct spi_transfer t[3]; - struct spi_message m; - unsigned int dummy = nor->read_dummy; - ssize_t ret; - int cmd_sz; + struct spi_mem_op op = + SPI_MEM_OP(SPI_MEM_OP_CMD(nor->read_opcode, 1), + SPI_MEM_OP_ADDR(nor->addr_width, from, 1), + SPI_MEM_OP_DUMMY(nor->read_dummy, 1), + SPI_MEM_OP_DATA_IN(len, buf, 1)); + size_t remaining = len; + int ret; /* get transfer protocols. */ - inst_nbits = spi_nor_get_protocol_inst_nbits(nor->read_proto); - addr_nbits = spi_nor_get_protocol_addr_nbits(nor->read_proto); - data_nbits = spi_nor_get_protocol_data_nbits(nor->read_proto); + op.cmd.buswidth = spi_nor_get_protocol_inst_nbits(nor->read_proto); + op.addr.buswidth = spi_nor_get_protocol_addr_nbits(nor->read_proto); + op.dummy.buswidth = op.addr.buswidth; + op.data.buswidth = spi_nor_get_protocol_data_nbits(nor->read_proto); /* convert the dummy cycles to the number of bytes */ - dummy = (dummy * addr_nbits) / 8; - - if (spi_flash_read_supported(spi)) { - struct spi_flash_read_message msg; - - memset(&msg, 0, sizeof(msg)); + op.dummy.nbytes = (nor->read_dummy * op.dummy.buswidth) / 8; - msg.buf = buf; - msg.from = from; - msg.len = len; - msg.read_opcode = nor->read_opcode; - msg.addr_width = nor->addr_width; - msg.dummy_bytes = dummy; - msg.opcode_nbits = inst_nbits; - msg.addr_nbits = addr_nbits; - msg.data_nbits = data_nbits; - - ret = spi_flash_read(spi, &msg); - if (ret < 0) + while (remaining) { + op.data.nbytes = remaining < UINT_MAX ? remaining : UINT_MAX; + ret = spi_mem_adjust_op_size(flash->spimem, &op); + if (ret) return ret; - return msg.retlen; - } - spi_message_init(&m); - memset(t, 0, (sizeof t)); - - flash->command[0] = nor->read_opcode; - m25p_addr2cmd(nor, from, flash->command); - - t[0].tx_buf = flash->command; - t[0].tx_nbits = inst_nbits; - t[0].len = m25p_cmdsz(nor) + dummy; - spi_message_add_tail(&t[0], &m); - - /* - * Set all dummy/mode cycle bits to avoid sending some manufacturer - * specific pattern, which might make the memory enter its Continuous - * Read mode by mistake. - * Based on the different mode cycle bit patterns listed and described - * in the JESD216B specification, the 0xff value works for all memories - * and all manufacturers. - */ - cmd_sz = t[0].len; - memset(flash->command + cmd_sz - dummy, 0xff, dummy); - - /* split the op code and address bytes into two transfers if needed. */ - data_idx = 1; - if (addr_nbits != inst_nbits) { - t[0].len = 1; - - t[1].tx_buf = &flash->command[1]; - t[1].tx_nbits = addr_nbits; - t[1].len = cmd_sz - 1; - spi_message_add_tail(&t[1], &m); + ret = spi_mem_exec_op(flash->spimem, &op); + if (ret) + return ret; - data_idx = 2; + op.addr.val += op.data.nbytes; + remaining -= op.data.nbytes; + op.data.buf.in += op.data.nbytes; } - t[data_idx].rx_buf = buf; - t[data_idx].rx_nbits = data_nbits; - t[data_idx].len = min3(len, spi_max_transfer_size(spi), - spi_max_message_size(spi) - cmd_sz); - spi_message_add_tail(&t[data_idx], &m); - - ret = spi_sync(spi, &m); - if (ret) - return ret; - - ret = m.actual_length - cmd_sz; - if (ret < 0) - return -EIO; - return ret; + return len; } /* @@ -231,8 +150,9 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len, * matches what the READ command supports, at least until this driver * understands FAST_READ (for clocks over 25 MHz). */ -static int m25p_probe(struct spi_device *spi) +static int m25p_probe(struct spi_mem *spimem) { + struct spi_device *spi = spimem->spi; struct flash_platform_data *data; struct m25p *flash; struct spi_nor *nor; @@ -244,9 +164,9 @@ static int m25p_probe(struct spi_device *spi) char *flash_name; int ret; - data = dev_get_platdata(&spi->dev); + data = dev_get_platdata(&spimem->spi->dev); - flash = devm_kzalloc(&spi->dev, sizeof(*flash), GFP_KERNEL); + flash = devm_kzalloc(&spimem->spi->dev, sizeof(*flash), GFP_KERNEL); if (!flash) return -ENOMEM; @@ -258,12 +178,12 @@ static int m25p_probe(struct spi_device *spi) nor->write_reg = m25p80_write_reg; nor->read_reg = m25p80_read_reg; - nor->dev = &spi->dev; + nor->dev = &spimem->spi->dev; spi_nor_set_flash_node(nor, spi->dev.of_node); nor->priv = flash; - spi_set_drvdata(spi, flash); - flash->spi = spi; + spi_mem_set_drvdata(spimem, flash); + flash->spimem = spimem; if (spi->mode & SPI_RX_QUAD) { hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4; @@ -303,9 +223,9 @@ static int m25p_probe(struct spi_device *spi) } -static int m25p_remove(struct spi_device *spi) +static int m25p_remove(struct spi_mem *spimem) { - struct m25p *flash = spi_get_drvdata(spi); + struct m25p *flash = spi_mem_get_drvdata(spimem); spi_nor_restore(&flash->spi_nor); @@ -313,9 +233,9 @@ static int m25p_remove(struct spi_device *spi) return mtd_device_unregister(&flash->spi_nor.mtd); } -static void m25p_shutdown(struct spi_device *spi) +static void m25p_shutdown(struct spi_mem *spimem) { - struct m25p *flash = spi_get_drvdata(spi); + struct m25p *flash = spi_mem_get_drvdata(spimem); spi_nor_restore(&flash->spi_nor); } @@ -386,12 +306,14 @@ static const struct of_device_id m25p_of_table[] = { }; MODULE_DEVICE_TABLE(of, m25p_of_table); -static struct spi_driver m25p80_driver = { - .driver = { - .name = "m25p80", - .of_match_table = m25p_of_table, +static struct spi_mem_driver m25p80_driver = { + .spidrv = { + .driver = { + .name = "m25p80", + .of_match_table = m25p_of_table, + }, + .id_table = m25p_ids, }, - .id_table = m25p_ids, .probe = m25p_probe, .remove = m25p_remove, .shutdown = m25p_shutdown, @@ -402,7 +324,7 @@ static struct spi_driver m25p80_driver = { */ }; -module_spi_driver(m25p80_driver); +module_spi_mem_driver(m25p80_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mike Lavender"); diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 16ae4ae8e8f9..29c0bfd74e8a 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -82,7 +82,6 @@ static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr, block = blk_rq_pos(req) << 9 >> tr->blkshift; nsect = blk_rq_cur_bytes(req) >> tr->blkshift; - buf = bio_data(req->bio); if (req_op(req) == REQ_OP_FLUSH) { if (tr->flush(dev)) @@ -100,9 +99,14 @@ static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr, return BLK_STS_IOERR; return BLK_STS_OK; case REQ_OP_READ: - for (; nsect > 0; nsect--, block++, buf += tr->blksize) - if (tr->readsect(dev, block, buf)) + buf = kmap(bio_page(req->bio)) + bio_offset(req->bio); + for (; nsect > 0; nsect--, block++, buf += tr->blksize) { + if (tr->readsect(dev, block, buf)) { + kunmap(bio_page(req->bio)); return BLK_STS_IOERR; + } + } + kunmap(bio_page(req->bio)); rq_flush_dcache_pages(req); return BLK_STS_OK; case REQ_OP_WRITE: @@ -110,9 +114,14 @@ static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr, return BLK_STS_IOERR; rq_flush_dcache_pages(req); - for (; nsect > 0; nsect--, block++, buf += tr->blksize) - if (tr->writesect(dev, block, buf)) + buf = kmap(bio_page(req->bio)) + bio_offset(req->bio); + for (; nsect > 0; nsect--, block++, buf += tr->blksize) { + if (tr->writesect(dev, block, buf)) { + kunmap(bio_page(req->bio)); return BLK_STS_IOERR; + } + } + kunmap(bio_page(req->bio)); return BLK_STS_OK; default: return BLK_STS_IOERR; @@ -418,7 +427,6 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) new->rq->queuedata = new; blk_queue_logical_block_size(new->rq, tr->blksize); - blk_queue_bounce_limit(new->rq, BLK_BOUNCE_HIGH); blk_queue_flag_set(QUEUE_FLAG_NONROT, new->rq); blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, new->rq); diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 807d17d863b3..64a1fcaafd9a 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1829,18 +1829,6 @@ static int mtd_proc_show(struct seq_file *m, void *v) mutex_unlock(&mtd_table_mutex); return 0; } - -static int mtd_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mtd_proc_show, NULL); -} - -static const struct file_operations mtd_proc_ops = { - .open = mtd_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* CONFIG_PROC_FS */ /*====================================================================*/ @@ -1883,7 +1871,7 @@ static int __init init_mtd(void) goto err_bdi; } - proc_mtd = proc_create("mtd", 0, NULL, &mtd_proc_ops); + proc_mtd = proc_create_single("mtd", 0, NULL, mtd_proc_show); ret = init_mtdchar(); if (ret) diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c index 01059f1a7bca..9f7d83e827c3 100644 --- a/drivers/net/bonding/bond_procfs.c +++ b/drivers/net/bonding/bond_procfs.c @@ -10,7 +10,7 @@ static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos) __acquires(RCU) { - struct bonding *bond = seq->private; + struct bonding *bond = PDE_DATA(file_inode(seq->file)); struct list_head *iter; struct slave *slave; loff_t off = 0; @@ -29,7 +29,7 @@ static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos) static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct bonding *bond = seq->private; + struct bonding *bond = PDE_DATA(file_inode(seq->file)); struct list_head *iter; struct slave *slave; bool found = false; @@ -56,7 +56,7 @@ static void bond_info_seq_stop(struct seq_file *seq, void *v) static void bond_info_show_master(struct seq_file *seq) { - struct bonding *bond = seq->private; + struct bonding *bond = PDE_DATA(file_inode(seq->file)); const struct bond_opt_value *optval; struct slave *curr, *primary; int i; @@ -167,7 +167,7 @@ static void bond_info_show_master(struct seq_file *seq) static void bond_info_show_slave(struct seq_file *seq, const struct slave *slave) { - struct bonding *bond = seq->private; + struct bonding *bond = PDE_DATA(file_inode(seq->file)); seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link)); @@ -257,38 +257,14 @@ static const struct seq_operations bond_info_seq_ops = { .show = bond_info_seq_show, }; -static int bond_info_open(struct inode *inode, struct file *file) -{ - struct seq_file *seq; - int res; - - res = seq_open(file, &bond_info_seq_ops); - if (!res) { - /* recover the pointer buried in proc_dir_entry data */ - seq = file->private_data; - seq->private = PDE_DATA(inode); - } - - return res; -} - -static const struct file_operations bond_info_fops = { - .owner = THIS_MODULE, - .open = bond_info_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - void bond_create_proc_entry(struct bonding *bond) { struct net_device *bond_dev = bond->dev; struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id); if (bn->proc_dir) { - bond->proc_entry = proc_create_data(bond_dev->name, - 0444, bn->proc_dir, - &bond_info_fops, bond); + bond->proc_entry = proc_create_seq_data(bond_dev->name, 0444, + bn->proc_dir, &bond_info_seq_ops, bond); if (bond->proc_entry == NULL) netdev_warn(bond_dev, "Cannot create /proc/net/%s/%s\n", DRV_NAME, bond_dev->name); diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index a4ebd8715494..661828e8fdcf 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1289,9 +1289,8 @@ static int efx_init_io(struct efx_nic *efx) pci_set_master(pci_dev); - /* Set the PCI DMA mask. Try all possibilities from our - * genuine mask down to 32 bits, because some architectures - * (e.g. x86_64 with iommu_sac_force set) will allow 40 bit + /* Set the PCI DMA mask. Try all possibilities from our genuine mask + * down to 32 bits, because some architectures will allow 40 bit * masks event though they reject 46 bit masks. */ while (dma_mask > 0x7fffffffUL) { diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c index 3d6c91e96589..dd5530a4f8c8 100644 --- a/drivers/net/ethernet/sfc/falcon/efx.c +++ b/drivers/net/ethernet/sfc/falcon/efx.c @@ -1242,9 +1242,8 @@ static int ef4_init_io(struct ef4_nic *efx) pci_set_master(pci_dev); - /* Set the PCI DMA mask. Try all possibilities from our - * genuine mask down to 32 bits, because some architectures - * (e.g. x86_64 with iommu_sac_force set) will allow 40 bit + /* Set the PCI DMA mask. Try all possibilities from our genuine mask + * down to 32 bits, because some architectures will allow 40 bit * masks event though they reject 46 bit masks. */ while (dma_mask > 0x7fffffffUL) { diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c index dfabbae72efd..f347fd9c5b28 100644 --- a/drivers/net/hamradio/bpqether.c +++ b/drivers/net/hamradio/bpqether.c @@ -449,20 +449,6 @@ static const struct seq_operations bpq_seqops = { .show = bpq_seq_show, }; -static int bpq_info_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &bpq_seqops); -} - -static const struct file_operations bpq_info_fops = { - .owner = THIS_MODULE, - .open = bpq_info_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - - /* ------------------------------------------------------------------------ */ static const struct net_device_ops bpq_netdev_ops = { @@ -590,7 +576,7 @@ static int bpq_device_event(struct notifier_block *this, static int __init bpq_init_driver(void) { #ifdef CONFIG_PROC_FS - if (!proc_create("bpqether", 0444, init_net.proc_net, &bpq_info_fops)) { + if (!proc_create_seq("bpqether", 0444, init_net.proc_net, &bpq_seqops)) { printk(KERN_ERR "bpq: cannot create /proc/net/bpqether entry.\n"); return -ENOENT; diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c index 3de272959090..6c03932d8a6b 100644 --- a/drivers/net/hamradio/scc.c +++ b/drivers/net/hamradio/scc.c @@ -2084,21 +2084,6 @@ static const struct seq_operations scc_net_seq_ops = { .stop = scc_net_seq_stop, .show = scc_net_seq_show, }; - - -static int scc_net_seq_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &scc_net_seq_ops); -} - -static const struct file_operations scc_net_seq_fops = { - .owner = THIS_MODULE, - .open = scc_net_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_private, -}; - #endif /* CONFIG_PROC_FS */ @@ -2122,7 +2107,7 @@ static int __init scc_init_driver (void) } rtnl_unlock(); - proc_create("z8530drv", 0, init_net.proc_net, &scc_net_seq_fops); + proc_create_seq("z8530drv", 0, init_net.proc_net, &scc_net_seq_ops); return 0; } diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 83034eb7ed4f..16ec7af6ab7b 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -841,20 +841,6 @@ static const struct seq_operations yam_seqops = { .stop = yam_seq_stop, .show = yam_seq_show, }; - -static int yam_info_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &yam_seqops); -} - -static const struct file_operations yam_info_fops = { - .owner = THIS_MODULE, - .open = yam_info_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - #endif @@ -1168,7 +1154,7 @@ static int __init yam_init_driver(void) yam_timer.expires = jiffies + HZ / 100; add_timer(&yam_timer); - proc_create("yam", 0444, init_net.proc_net, &yam_info_fops); + proc_create_seq("yam", 0444, init_net.proc_net, &yam_seqops); return 0; error: while (--i >= 0) { diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 7df07337d69c..de51e8f70f44 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -1096,21 +1096,6 @@ static const struct seq_operations pppoe_seq_ops = { .stop = pppoe_seq_stop, .show = pppoe_seq_show, }; - -static int pppoe_seq_open(struct inode *inode, struct file *file) -{ - return seq_open_net(inode, file, &pppoe_seq_ops, - sizeof(struct seq_net_private)); -} - -static const struct file_operations pppoe_seq_fops = { - .owner = THIS_MODULE, - .open = pppoe_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release_net, -}; - #endif /* CONFIG_PROC_FS */ static const struct proto_ops pppoe_ops = { @@ -1122,7 +1107,7 @@ static const struct proto_ops pppoe_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pppoe_getname, - .poll = datagram_poll, + .poll_mask = datagram_poll_mask, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, @@ -1146,7 +1131,8 @@ static __net_init int pppoe_init_net(struct net *net) rwlock_init(&pn->hash_lock); - pde = proc_create("pppoe", 0444, net->proc_net, &pppoe_seq_fops); + pde = proc_create_net("pppoe", 0444, net->proc_net, + &pppoe_seq_ops, sizeof(struct seq_net_private)); #ifdef CONFIG_PROC_FS if (!pde) return -ENOMEM; diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index c4267ecefd85..157b67c1bf8e 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -624,7 +624,6 @@ static const struct proto_ops pptp_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = pptp_getname, - .poll = sock_no_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c index d122386c382b..b01dc34d55af 100644 --- a/drivers/net/wireless/atmel/atmel.c +++ b/drivers/net/wireless/atmel/atmel.c @@ -1482,18 +1482,6 @@ static int atmel_proc_show(struct seq_file *m, void *v) return 0; } -static int atmel_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, atmel_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations atmel_proc_fops = { - .open = atmel_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static const struct net_device_ops atmel_netdev_ops = { .ndo_open = atmel_open, .ndo_stop = atmel_close, @@ -1614,7 +1602,8 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port, netif_carrier_off(dev); - if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv)) + if (!proc_create_single_data("driver/atmel", 0, NULL, atmel_proc_show, + priv)) printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.c b/drivers/net/wireless/intersil/hostap/hostap_ap.c index b4dfe1893d18..d1884b8913e7 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_ap.c +++ b/drivers/net/wireless/intersil/hostap/hostap_ap.c @@ -69,7 +69,7 @@ static void prism2_send_mgmt(struct net_device *dev, #ifndef PRISM2_NO_PROCFS_DEBUG static int ap_debug_proc_show(struct seq_file *m, void *v) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); seq_printf(m, "BridgedUnicastFrames=%u\n", ap->bridged_unicast); seq_printf(m, "BridgedMulticastFrames=%u\n", ap->bridged_multicast); @@ -81,18 +81,6 @@ static int ap_debug_proc_show(struct seq_file *m, void *v) seq_printf(m, "tx_drop_nonassoc=%u\n", ap->tx_drop_nonassoc); return 0; } - -static int ap_debug_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ap_debug_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ap_debug_proc_fops = { - .open = ap_debug_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -333,7 +321,7 @@ void hostap_deauth_all_stas(struct net_device *dev, struct ap_data *ap, static int ap_control_proc_show(struct seq_file *m, void *v) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); char *policy_txt; struct mac_entry *entry; @@ -365,20 +353,20 @@ static int ap_control_proc_show(struct seq_file *m, void *v) static void *ap_control_proc_start(struct seq_file *m, loff_t *_pos) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); spin_lock_bh(&ap->mac_restrictions.lock); return seq_list_start_head(&ap->mac_restrictions.mac_list, *_pos); } static void *ap_control_proc_next(struct seq_file *m, void *v, loff_t *_pos) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); return seq_list_next(v, &ap->mac_restrictions.mac_list, _pos); } static void ap_control_proc_stop(struct seq_file *m, void *v) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); spin_unlock_bh(&ap->mac_restrictions.lock); } @@ -389,24 +377,6 @@ static const struct seq_operations ap_control_proc_seqops = { .show = ap_control_proc_show, }; -static int ap_control_proc_open(struct inode *inode, struct file *file) -{ - int ret = seq_open(file, &ap_control_proc_seqops); - if (ret == 0) { - struct seq_file *m = file->private_data; - m->private = PDE_DATA(inode); - } - return ret; -} - -static const struct file_operations ap_control_proc_fops = { - .open = ap_control_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - - int ap_control_add_mac(struct mac_restrictions *mac_restrictions, u8 *mac) { struct mac_entry *entry; @@ -585,20 +555,20 @@ static int prism2_ap_proc_show(struct seq_file *m, void *v) static void *prism2_ap_proc_start(struct seq_file *m, loff_t *_pos) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); spin_lock_bh(&ap->sta_table_lock); return seq_list_start_head(&ap->sta_list, *_pos); } static void *prism2_ap_proc_next(struct seq_file *m, void *v, loff_t *_pos) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); return seq_list_next(v, &ap->sta_list, _pos); } static void prism2_ap_proc_stop(struct seq_file *m, void *v) { - struct ap_data *ap = m->private; + struct ap_data *ap = PDE_DATA(file_inode(m->file)); spin_unlock_bh(&ap->sta_table_lock); } @@ -608,23 +578,6 @@ static const struct seq_operations prism2_ap_proc_seqops = { .stop = prism2_ap_proc_stop, .show = prism2_ap_proc_show, }; - -static int prism2_ap_proc_open(struct inode *inode, struct file *file) -{ - int ret = seq_open(file, &prism2_ap_proc_seqops); - if (ret == 0) { - struct seq_file *m = file->private_data; - m->private = PDE_DATA(inode); - } - return ret; -} - -static const struct file_operations prism2_ap_proc_fops = { - .open = prism2_ap_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ @@ -896,12 +849,13 @@ void hostap_init_ap_proc(local_info_t *local) return; #ifndef PRISM2_NO_PROCFS_DEBUG - proc_create_data("ap_debug", 0, ap->proc, &ap_debug_proc_fops, ap); + proc_create_single_data("ap_debug", 0, ap->proc, ap_debug_proc_show, ap); #endif /* PRISM2_NO_PROCFS_DEBUG */ #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT - proc_create_data("ap_control", 0, ap->proc, &ap_control_proc_fops, ap); - proc_create_data("ap", 0, ap->proc, &prism2_ap_proc_fops, ap); + proc_create_seq_data("ap_control", 0, ap->proc, &ap_control_proc_seqops, + ap); + proc_create_seq_data("ap", 0, ap->proc, &prism2_ap_proc_seqops, ap); #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ } @@ -1106,18 +1060,6 @@ static int prism2_sta_proc_show(struct seq_file *m, void *v) return 0; } -static int prism2_sta_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, prism2_sta_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations prism2_sta_proc_fops = { - .open = prism2_sta_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void handle_add_proc_queue(struct work_struct *work) { struct ap_data *ap = container_of(work, struct ap_data, @@ -1138,9 +1080,9 @@ static void handle_add_proc_queue(struct work_struct *work) if (sta) { sprintf(name, "%pM", sta->addr); - sta->proc = proc_create_data( + sta->proc = proc_create_single_data( name, 0, ap->proc, - &prism2_sta_proc_fops, sta); + prism2_sta_proc_show, sta); atomic_dec(&sta->users); } diff --git a/drivers/net/wireless/intersil/hostap/hostap_hw.c b/drivers/net/wireless/intersil/hostap/hostap_hw.c index 5c4a17a18968..2720aa39f530 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_hw.c +++ b/drivers/net/wireless/intersil/hostap/hostap_hw.c @@ -2951,19 +2951,6 @@ static int prism2_registers_proc_show(struct seq_file *m, void *v) return 0; } - -static int prism2_registers_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, prism2_registers_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations prism2_registers_proc_fops = { - .open = prism2_registers_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -3279,8 +3266,8 @@ static int hostap_hw_ready(struct net_device *dev) } hostap_init_proc(local); #ifndef PRISM2_NO_PROCFS_DEBUG - proc_create_data("registers", 0, local->proc, - &prism2_registers_proc_fops, local); + proc_create_single_data("registers", 0, local->proc, + prism2_registers_proc_show, local); #endif /* PRISM2_NO_PROCFS_DEBUG */ hostap_init_ap_proc(local); return 0; diff --git a/drivers/net/wireless/intersil/hostap/hostap_proc.c b/drivers/net/wireless/intersil/hostap/hostap_proc.c index d234231bf532..5b33ccab9188 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_proc.c +++ b/drivers/net/wireless/intersil/hostap/hostap_proc.c @@ -43,18 +43,6 @@ static int prism2_debug_proc_show(struct seq_file *m, void *v) return 0; } - -static int prism2_debug_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, prism2_debug_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations prism2_debug_proc_fops = { - .open = prism2_debug_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* PRISM2_NO_PROCFS_DEBUG */ @@ -95,19 +83,6 @@ static int prism2_stats_proc_show(struct seq_file *m, void *v) return 0; } -static int prism2_stats_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, prism2_stats_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations prism2_stats_proc_fops = { - .open = prism2_stats_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - - static int prism2_wds_proc_show(struct seq_file *m, void *v) { struct list_head *ptr = v; @@ -122,20 +97,20 @@ static int prism2_wds_proc_show(struct seq_file *m, void *v) static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); read_lock_bh(&local->iface_lock); return seq_list_start(&local->hostap_interfaces, *_pos); } static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); return seq_list_next(v, &local->hostap_interfaces, _pos); } static void prism2_wds_proc_stop(struct seq_file *m, void *v) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); read_unlock_bh(&local->iface_lock); } @@ -146,27 +121,9 @@ static const struct seq_operations prism2_wds_proc_seqops = { .show = prism2_wds_proc_show, }; -static int prism2_wds_proc_open(struct inode *inode, struct file *file) -{ - int ret = seq_open(file, &prism2_wds_proc_seqops); - if (ret == 0) { - struct seq_file *m = file->private_data; - m->private = PDE_DATA(inode); - } - return ret; -} - -static const struct file_operations prism2_wds_proc_fops = { - .open = prism2_wds_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - - static int prism2_bss_list_proc_show(struct seq_file *m, void *v) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); struct list_head *ptr = v; struct hostap_bss_info *bss; @@ -193,20 +150,20 @@ static int prism2_bss_list_proc_show(struct seq_file *m, void *v) static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); spin_lock_bh(&local->lock); return seq_list_start_head(&local->bss_list, *_pos); } static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); return seq_list_next(v, &local->bss_list, _pos); } static void prism2_bss_list_proc_stop(struct seq_file *m, void *v) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); spin_unlock_bh(&local->lock); } @@ -217,24 +174,6 @@ static const struct seq_operations prism2_bss_list_proc_seqops = { .show = prism2_bss_list_proc_show, }; -static int prism2_bss_list_proc_open(struct inode *inode, struct file *file) -{ - int ret = seq_open(file, &prism2_bss_list_proc_seqops); - if (ret == 0) { - struct seq_file *m = file->private_data; - m->private = PDE_DATA(inode); - } - return ret; -} - -static const struct file_operations prism2_bss_list_proc_fops = { - .open = prism2_bss_list_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - - static int prism2_crypt_proc_show(struct seq_file *m, void *v) { local_info_t *local = m->private; @@ -252,19 +191,6 @@ static int prism2_crypt_proc_show(struct seq_file *m, void *v) return 0; } -static int prism2_crypt_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, prism2_crypt_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations prism2_crypt_proc_fops = { - .open = prism2_crypt_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - - static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf, size_t count, loff_t *_pos) { @@ -342,7 +268,7 @@ static int prism2_io_debug_proc_read(char *page, char **start, off_t off, #ifndef PRISM2_NO_STATION_MODES static int prism2_scan_results_proc_show(struct seq_file *m, void *v) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); unsigned long entry; int i, len; struct hfa384x_hostscan_result *scanres; @@ -392,7 +318,7 @@ static int prism2_scan_results_proc_show(struct seq_file *m, void *v) static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); spin_lock_bh(&local->lock); /* We have a header (pos 0) + N results to show (pos 1...N) */ @@ -403,7 +329,7 @@ static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos) static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); ++*_pos; if (*_pos > local->last_scan_results_count) @@ -413,7 +339,7 @@ static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t * static void prism2_scan_results_proc_stop(struct seq_file *m, void *v) { - local_info_t *local = m->private; + local_info_t *local = PDE_DATA(file_inode(m->file)); spin_unlock_bh(&local->lock); } @@ -423,25 +349,6 @@ static const struct seq_operations prism2_scan_results_proc_seqops = { .stop = prism2_scan_results_proc_stop, .show = prism2_scan_results_proc_show, }; - -static int prism2_scan_results_proc_open(struct inode *inode, struct file *file) -{ - int ret = seq_open(file, &prism2_scan_results_proc_seqops); - if (ret == 0) { - struct seq_file *m = file->private_data; - m->private = PDE_DATA(inode); - } - return ret; -} - -static const struct file_operations prism2_scan_results_proc_fops = { - .open = prism2_scan_results_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - - #endif /* PRISM2_NO_STATION_MODES */ @@ -463,29 +370,29 @@ void hostap_init_proc(local_info_t *local) } #ifndef PRISM2_NO_PROCFS_DEBUG - proc_create_data("debug", 0, local->proc, - &prism2_debug_proc_fops, local); + proc_create_single_data("debug", 0, local->proc, + prism2_debug_proc_show, local); #endif /* PRISM2_NO_PROCFS_DEBUG */ - proc_create_data("stats", 0, local->proc, - &prism2_stats_proc_fops, local); - proc_create_data("wds", 0, local->proc, - &prism2_wds_proc_fops, local); + proc_create_single_data("stats", 0, local->proc, prism2_stats_proc_show, + local); + proc_create_seq_data("wds", 0, local->proc, + &prism2_wds_proc_seqops, local); proc_create_data("pda", 0, local->proc, &prism2_pda_proc_fops, local); proc_create_data("aux_dump", 0, local->proc, local->func->read_aux_fops ?: &prism2_aux_dump_proc_fops, local); - proc_create_data("bss_list", 0, local->proc, - &prism2_bss_list_proc_fops, local); - proc_create_data("crypt", 0, local->proc, - &prism2_crypt_proc_fops, local); + proc_create_seq_data("bss_list", 0, local->proc, + &prism2_bss_list_proc_seqops, local); + proc_create_single_data("crypt", 0, local->proc, prism2_crypt_proc_show, + local); #ifdef PRISM2_IO_DEBUG - proc_create_data("io_debug", 0, local->proc, - &prism2_io_debug_proc_fops, local); + proc_create_single_data("io_debug", 0, local->proc, + prism2_debug_proc_show, local); #endif /* PRISM2_IO_DEBUG */ #ifndef PRISM2_NO_STATION_MODES - proc_create_data("scan_results", 0, local->proc, - &prism2_scan_results_proc_fops, local); + proc_create_seq_data("scan_results", 0, local->proc, + &prism2_scan_results_proc_seqops, local); #endif /* PRISM2_NO_STATION_MODES */ } diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 7f9b16b97ea3..a7e0a17aa7e8 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -2663,19 +2663,6 @@ static int ray_cs_proc_show(struct seq_file *m, void *v) } return 0; } - -static int ray_cs_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ray_cs_proc_show, NULL); -} - -static const struct file_operations ray_cs_proc_fops = { - .owner = THIS_MODULE, - .open = ray_cs_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /*===========================================================================*/ static int build_auth_frame(ray_dev_t *local, UCHAR *dest, int auth_type) @@ -2814,7 +2801,7 @@ static int __init init_ray_cs(void) #ifdef CONFIG_PROC_FS proc_mkdir("driver/ray_cs", NULL); - proc_create("driver/ray_cs/ray_cs", 0, NULL, &ray_cs_proc_fops); + proc_create_single("driver/ray_cs/ray_cs", 0, NULL, ray_cs_proc_show); proc_create("driver/ray_cs/essid", 0200, NULL, &ray_cs_essid_proc_fops); proc_create_data("driver/ray_cs/net_type", 0200, NULL, &int_proc_fops, &net_type); diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c index c2e5a7e6bd3e..88e1f9a0faaf 100644 --- a/drivers/nubus/proc.c +++ b/drivers/nubus/proc.c @@ -45,18 +45,6 @@ nubus_devices_proc_show(struct seq_file *m, void *v) return 0; } -static int nubus_devices_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, nubus_devices_proc_show, NULL); -} - -static const struct file_operations nubus_devices_proc_fops = { - .open = nubus_devices_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static struct proc_dir_entry *proc_bus_nubus_dir; /* @@ -149,18 +137,6 @@ static int nubus_proc_rsrc_show(struct seq_file *m, void *v) return 0; } -static int nubus_proc_rsrc_open(struct inode *inode, struct file *file) -{ - return single_open(file, nubus_proc_rsrc_show, inode); -} - -static const struct file_operations nubus_proc_rsrc_fops = { - .open = nubus_proc_rsrc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, unsigned int size) @@ -176,8 +152,8 @@ void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, pde_data = nubus_proc_alloc_pde_data(nubus_dirptr(ent), size); else pde_data = NULL; - proc_create_data(name, S_IFREG | 0444, procdir, - &nubus_proc_rsrc_fops, pde_data); + proc_create_single_data(name, S_IFREG | 0444, procdir, + nubus_proc_rsrc_show, pde_data); } void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, @@ -190,32 +166,21 @@ void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, return; snprintf(name, sizeof(name), "%x", ent->type); - proc_create_data(name, S_IFREG | 0444, procdir, - &nubus_proc_rsrc_fops, - nubus_proc_alloc_pde_data(data, 0)); + proc_create_single_data(name, S_IFREG | 0444, procdir, + nubus_proc_rsrc_show, + nubus_proc_alloc_pde_data(data, 0)); } /* * /proc/nubus stuff */ -static int nubus_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, nubus_proc_show, NULL); -} - -static const struct file_operations nubus_proc_fops = { - .open = nubus_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - void __init nubus_proc_init(void) { - proc_create("nubus", 0, NULL, &nubus_proc_fops); + proc_create_single("nubus", 0, NULL, nubus_proc_show); proc_bus_nubus_dir = proc_mkdir("bus/nubus", NULL); if (!proc_bus_nubus_dir) return; - proc_create("devices", 0, proc_bus_nubus_dir, &nubus_devices_proc_fops); + proc_create_single("devices", 0, proc_bus_nubus_dir, + nubus_devices_proc_show); } diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index 30852270484f..2e96b34bc936 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -276,7 +276,8 @@ static int nsio_rw_bytes(struct nd_namespace_common *ndns, if (rw == READ) { if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) return -EIO; - return memcpy_mcsafe(buf, nsio->addr + offset, size); + if (memcpy_mcsafe(buf, nsio->addr + offset, size) != 0) + return -EIO; } if (unlikely(is_bad_pmem(&nsio->bb, sector, sz_align))) { diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 9d714926ecf5..e023d6aa22b5 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -101,15 +101,15 @@ static blk_status_t read_pmem(struct page *page, unsigned int off, void *pmem_addr, unsigned int len) { unsigned int chunk; - int rc; + unsigned long rem; void *mem; while (len) { mem = kmap_atomic(page); chunk = min_t(unsigned int, len, PAGE_SIZE); - rc = memcpy_mcsafe(mem + off, pmem_addr, chunk); + rem = memcpy_mcsafe(mem + off, pmem_addr, chunk); kunmap_atomic(mem); - if (rc) + if (rem) return BLK_STS_IOERR; len -= chunk; off = 0; diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index b9ca782fe82d..c8b30067b6ae 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -101,6 +101,15 @@ static void nvme_ns_remove(struct nvme_ns *ns); static int nvme_revalidate_disk(struct gendisk *disk); static void nvme_put_subsystem(struct nvme_subsystem *subsys); +static void nvme_queue_scan(struct nvme_ctrl *ctrl) +{ + /* + * Only new queue scan work when admin and IO queues are both alive + */ + if (ctrl->state == NVME_CTRL_LIVE) + queue_work(nvme_wq, &ctrl->scan_work); +} + int nvme_reset_ctrl(struct nvme_ctrl *ctrl) { if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_RESETTING)) @@ -244,9 +253,6 @@ EXPORT_SYMBOL_GPL(nvme_complete_rq); void nvme_cancel_request(struct request *req, void *data, bool reserved) { - if (!blk_mq_request_started(req)) - return; - dev_dbg_ratelimited(((struct nvme_ctrl *) data)->device, "Cancelling I/O %d", req->tag); @@ -351,7 +357,7 @@ static void nvme_free_ns_head(struct kref *ref) nvme_mpath_remove_disk(head); ida_simple_remove(&head->subsys->ns_ida, head->instance); list_del_init(&head->entry); - cleanup_srcu_struct(&head->srcu); + cleanup_srcu_struct_quiesced(&head->srcu); nvme_put_subsystem(head->subsys); kfree(head); } @@ -1033,6 +1039,21 @@ int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count) } EXPORT_SYMBOL_GPL(nvme_set_queue_count); +#define NVME_AEN_SUPPORTED \ + (NVME_AEN_CFG_NS_ATTR | NVME_AEN_CFG_FW_ACT) + +static void nvme_enable_aen(struct nvme_ctrl *ctrl) +{ + u32 result; + int status; + + status = nvme_set_features(ctrl, NVME_FEAT_ASYNC_EVENT, + ctrl->oaes & NVME_AEN_SUPPORTED, NULL, 0, &result); + if (status) + dev_warn(ctrl->device, "Failed to configure AEN (cfg %x)\n", + ctrl->oaes & NVME_AEN_SUPPORTED); +} + static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio) { struct nvme_user_io io; @@ -1351,13 +1372,19 @@ static void nvme_set_chunk_size(struct nvme_ns *ns) blk_queue_chunk_sectors(ns->queue, rounddown_pow_of_two(chunk_size)); } -static void nvme_config_discard(struct nvme_ctrl *ctrl, - unsigned stream_alignment, struct request_queue *queue) +static void nvme_config_discard(struct nvme_ns *ns) { + struct nvme_ctrl *ctrl = ns->ctrl; + struct request_queue *queue = ns->queue; u32 size = queue_logical_block_size(queue); - if (stream_alignment) - size *= stream_alignment; + if (!(ctrl->oncs & NVME_CTRL_ONCS_DSM)) { + blk_queue_flag_clear(QUEUE_FLAG_DISCARD, queue); + return; + } + + if (ctrl->nr_streams && ns->sws && ns->sgs) + size *= ns->sws * ns->sgs; BUILD_BUG_ON(PAGE_SIZE / sizeof(struct nvme_dsm_range) < NVME_DSM_MAX_RANGES); @@ -1365,9 +1392,12 @@ static void nvme_config_discard(struct nvme_ctrl *ctrl, queue->limits.discard_alignment = 0; queue->limits.discard_granularity = size; + /* If discard is already enabled, don't reset queue limits */ + if (blk_queue_flag_test_and_set(QUEUE_FLAG_DISCARD, queue)) + return; + blk_queue_max_discard_sectors(queue, UINT_MAX); blk_queue_max_discard_segments(queue, NVME_DSM_MAX_RANGES); - blk_queue_flag_set(QUEUE_FLAG_DISCARD, queue); if (ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES) blk_queue_max_write_zeroes_sectors(queue, UINT_MAX); @@ -1411,10 +1441,6 @@ static void nvme_update_disk_info(struct gendisk *disk, { sector_t capacity = le64_to_cpup(&id->nsze) << (ns->lba_shift - 9); unsigned short bs = 1 << ns->lba_shift; - unsigned stream_alignment = 0; - - if (ns->ctrl->nr_streams && ns->sws && ns->sgs) - stream_alignment = ns->sws * ns->sgs; blk_mq_freeze_queue(disk->queue); blk_integrity_unregister(disk); @@ -1428,10 +1454,9 @@ static void nvme_update_disk_info(struct gendisk *disk, nvme_init_integrity(disk, ns->ms, ns->pi_type); if (ns->ms && !nvme_ns_has_pi(ns) && !blk_get_integrity(disk)) capacity = 0; - set_capacity(disk, capacity); - if (ns->ctrl->oncs & NVME_CTRL_ONCS_DSM) - nvme_config_discard(ns->ctrl, stream_alignment, disk->queue); + set_capacity(disk, capacity); + nvme_config_discard(ns); blk_mq_unfreeze_queue(disk->queue); } @@ -1577,7 +1602,7 @@ static int nvme_pr_reserve(struct block_device *bdev, u64 key, static int nvme_pr_preempt(struct block_device *bdev, u64 old, u64 new, enum pr_type type, bool abort) { - u32 cdw10 = nvme_pr_type(type) << 8 | abort ? 2 : 1; + u32 cdw10 = nvme_pr_type(type) << 8 | (abort ? 2 : 1); return nvme_pr_command(bdev, cdw10, old, new, nvme_cmd_resv_acquire); } @@ -1589,7 +1614,7 @@ static int nvme_pr_clear(struct block_device *bdev, u64 key) static int nvme_pr_release(struct block_device *bdev, u64 key, enum pr_type type) { - u32 cdw10 = nvme_pr_type(type) << 8 | key ? 1 << 3 : 0; + u32 cdw10 = nvme_pr_type(type) << 8 | (key ? 1 << 3 : 0); return nvme_pr_command(bdev, cdw10, key, 0, nvme_cmd_resv_release); } @@ -2183,7 +2208,8 @@ static int nvme_init_subsystem(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id) * Verify that the subsystem actually supports multiple * controllers, else bail out. */ - if (nvme_active_ctrls(found) && !(id->cmic & (1 << 1))) { + if (!ctrl->opts->discovery_nqn && + nvme_active_ctrls(found) && !(id->cmic & (1 << 1))) { dev_err(ctrl->device, "ignoring ctrl due to duplicate subnqn (%s).\n", found->subnqn); @@ -2314,7 +2340,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) if (id->lpa & NVME_CTRL_LPA_CMD_EFFECTS_LOG) { ret = nvme_get_effects_log(ctrl); if (ret < 0) - return ret; + goto out_free; } if (!ctrl->identified) { @@ -2345,6 +2371,7 @@ int nvme_init_identify(struct nvme_ctrl *ctrl) ctrl->oacs = le16_to_cpu(id->oacs); ctrl->oncs = le16_to_cpup(&id->oncs); + ctrl->oaes = le32_to_cpu(id->oaes); atomic_set(&ctrl->abort_limit, id->acl + 1); ctrl->vwc = id->vwc; ctrl->cntlid = le16_to_cpup(&id->cntlid); @@ -3170,6 +3197,42 @@ static void nvme_scan_ns_sequential(struct nvme_ctrl *ctrl, unsigned nn) nvme_remove_invalid_namespaces(ctrl, nn); } +static bool nvme_scan_changed_ns_log(struct nvme_ctrl *ctrl) +{ + size_t log_size = NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32); + __le32 *log; + int error, i; + bool ret = false; + + log = kzalloc(log_size, GFP_KERNEL); + if (!log) + return false; + + error = nvme_get_log(ctrl, NVME_LOG_CHANGED_NS, log, log_size); + if (error) { + dev_warn(ctrl->device, + "reading changed ns log failed: %d\n", error); + goto out_free_log; + } + + if (log[0] == cpu_to_le32(0xffffffff)) + goto out_free_log; + + for (i = 0; i < NVME_MAX_CHANGED_NAMESPACES; i++) { + u32 nsid = le32_to_cpu(log[i]); + + if (nsid == 0) + break; + dev_info(ctrl->device, "rescanning namespace %d.\n", nsid); + nvme_validate_ns(ctrl, nsid); + } + ret = true; + +out_free_log: + kfree(log); + return ret; +} + static void nvme_scan_work(struct work_struct *work) { struct nvme_ctrl *ctrl = @@ -3182,6 +3245,12 @@ static void nvme_scan_work(struct work_struct *work) WARN_ON_ONCE(!ctrl->tagset); + if (test_and_clear_bit(EVENT_NS_CHANGED, &ctrl->events)) { + if (nvme_scan_changed_ns_log(ctrl)) + goto out_sort_namespaces; + dev_info(ctrl->device, "rescanning namespaces.\n"); + } + if (nvme_identify_ctrl(ctrl, &id)) return; @@ -3189,26 +3258,17 @@ static void nvme_scan_work(struct work_struct *work) if (ctrl->vs >= NVME_VS(1, 1, 0) && !(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS)) { if (!nvme_scan_ns_list(ctrl, nn)) - goto done; + goto out_free_id; } nvme_scan_ns_sequential(ctrl, nn); - done: +out_free_id: + kfree(id); +out_sort_namespaces: down_write(&ctrl->namespaces_rwsem); list_sort(NULL, &ctrl->namespaces, ns_cmp); up_write(&ctrl->namespaces_rwsem); - kfree(id); } -void nvme_queue_scan(struct nvme_ctrl *ctrl) -{ - /* - * Only new queue scan work when admin and IO queues are both alive - */ - if (ctrl->state == NVME_CTRL_LIVE) - queue_work(nvme_wq, &ctrl->scan_work); -} -EXPORT_SYMBOL_GPL(nvme_queue_scan); - /* * This function iterates the namespace list unlocked to allow recovery from * controller failure. It is up to the caller to ensure the namespace list is @@ -3322,8 +3382,23 @@ static void nvme_fw_act_work(struct work_struct *work) nvme_get_fw_slot_info(ctrl); } +static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result) +{ + switch ((result & 0xff00) >> 8) { + case NVME_AER_NOTICE_NS_CHANGED: + set_bit(EVENT_NS_CHANGED, &ctrl->events); + nvme_queue_scan(ctrl); + break; + case NVME_AER_NOTICE_FW_ACT_STARTING: + queue_work(nvme_wq, &ctrl->fw_act_work); + break; + default: + dev_warn(ctrl->device, "async event result %08x\n", result); + } +} + void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, - union nvme_result *res) + volatile union nvme_result *res) { u32 result = le32_to_cpu(res->u32); @@ -3331,6 +3406,9 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, return; switch (result & 0x7) { + case NVME_AER_NOTICE: + nvme_handle_aen_notice(ctrl, result); + break; case NVME_AER_ERROR: case NVME_AER_SMART: case NVME_AER_CSS: @@ -3340,18 +3418,6 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, default: break; } - - switch (result & 0xff07) { - case NVME_AER_NOTICE_NS_CHANGED: - dev_info(ctrl->device, "rescanning\n"); - nvme_queue_scan(ctrl); - break; - case NVME_AER_NOTICE_FW_ACT_STARTING: - queue_work(nvme_wq, &ctrl->fw_act_work); - break; - default: - dev_warn(ctrl->device, "async event result %08x\n", result); - } queue_work(nvme_wq, &ctrl->async_event_work); } EXPORT_SYMBOL_GPL(nvme_complete_async_event); @@ -3374,6 +3440,7 @@ void nvme_start_ctrl(struct nvme_ctrl *ctrl) if (ctrl->queue_count > 1) { nvme_queue_scan(ctrl); + nvme_enable_aen(ctrl); queue_work(nvme_wq, &ctrl->async_event_work); nvme_start_queues(ctrl); } diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 7ae732a77fe8..5f5f7067c41d 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -57,7 +57,7 @@ static struct nvmf_host *nvmf_host_add(const char *hostnqn) goto out_unlock; kref_init(&host->ref); - memcpy(host->nqn, hostnqn, NVMF_NQN_SIZE); + strlcpy(host->nqn, hostnqn, NVMF_NQN_SIZE); list_add_tail(&host->list, &nvmf_hosts); out_unlock: @@ -545,71 +545,54 @@ blk_status_t nvmf_check_if_ready(struct nvme_ctrl *ctrl, struct request *rq, return BLK_STS_OK; switch (ctrl->state) { - case NVME_CTRL_DELETING: - goto reject_io; - case NVME_CTRL_NEW: case NVME_CTRL_CONNECTING: + case NVME_CTRL_DELETING: + /* + * This is the case of starting a new or deleting an association + * but connectivity was lost before it was fully created or torn + * down. We need to error the commands used to initialize the + * controller so the reconnect can go into a retry attempt. The + * commands should all be marked REQ_FAILFAST_DRIVER, which will + * hit the reject path below. Anything else will be queued while + * the state settles. + */ if (!is_connected) - /* - * This is the case of starting a new - * association but connectivity was lost - * before it was fully created. We need to - * error the commands used to initialize the - * controller so the reconnect can go into a - * retry attempt. The commands should all be - * marked REQ_FAILFAST_DRIVER, which will hit - * the reject path below. Anything else will - * be queued while the state settles. - */ - goto reject_or_queue_io; - - if ((queue_live && - !(nvme_req(rq)->flags & NVME_REQ_USERCMD)) || - (!queue_live && blk_rq_is_passthrough(rq) && - cmd->common.opcode == nvme_fabrics_command && - cmd->fabrics.fctype == nvme_fabrics_type_connect)) - /* - * If queue is live, allow only commands that - * are internally generated pass through. These - * are commands on the admin queue to initialize - * the controller. This will reject any ioctl - * admin cmds received while initializing. - * - * If the queue is not live, allow only a - * connect command. This will reject any ioctl - * admin cmd as well as initialization commands - * if the controller reverted the queue to non-live. - */ + break; + + /* + * If queue is live, allow only commands that are internally + * generated pass through. These are commands on the admin + * queue to initialize the controller. This will reject any + * ioctl admin cmds received while initializing. + */ + if (queue_live && !(nvme_req(rq)->flags & NVME_REQ_USERCMD)) return BLK_STS_OK; /* - * fall-thru to the reject_or_queue_io clause + * If the queue is not live, allow only a connect command. This + * will reject any ioctl admin cmd as well as initialization + * commands if the controller reverted the queue to non-live. */ + if (!queue_live && blk_rq_is_passthrough(rq) && + cmd->common.opcode == nvme_fabrics_command && + cmd->fabrics.fctype == nvme_fabrics_type_connect) + return BLK_STS_OK; break; - - /* these cases fall-thru - * case NVME_CTRL_LIVE: - * case NVME_CTRL_RESETTING: - */ default: break; } -reject_or_queue_io: /* - * Any other new io is something we're not in a state to send - * to the device. Default action is to busy it and retry it - * after the controller state is recovered. However, anything - * marked for failfast or nvme multipath is immediately failed. - * Note: commands used to initialize the controller will be - * marked for failfast. + * Any other new io is something we're not in a state to send to the + * device. Default action is to busy it and retry it after the + * controller state is recovered. However, anything marked for failfast + * or nvme multipath is immediately failed. Note: commands used to + * initialize the controller will be marked for failfast. * Note: nvme cli/ioctl commands are marked for failfast. */ if (!blk_noretry_request(rq) && !(rq->cmd_flags & REQ_NVME_MPATH)) return BLK_STS_RESOURCE; - -reject_io: nvme_req(rq)->status = NVME_SC_ABORT_REQ; return BLK_STS_IOERR; } @@ -689,10 +672,6 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, opts->discovery_nqn = !(strcmp(opts->subsysnqn, NVME_DISC_SUBSYS_NAME)); - if (opts->discovery_nqn) { - opts->kato = 0; - opts->nr_io_queues = 0; - } break; case NVMF_OPT_TRADDR: p = match_strdup(args); @@ -851,6 +830,11 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts, } } + if (opts->discovery_nqn) { + opts->kato = 0; + opts->nr_io_queues = 0; + opts->duplicate_connect = true; + } if (ctrl_loss_tmo < 0) opts->max_reconnects = -1; else @@ -983,16 +967,6 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count) goto out_module_put; } - if (strcmp(ctrl->subsys->subnqn, opts->subsysnqn)) { - dev_warn(ctrl->device, - "controller returned incorrect NQN: \"%s\".\n", - ctrl->subsys->subnqn); - module_put(ops->module); - up_read(&nvmf_transports_rwsem); - nvme_delete_ctrl_sync(ctrl); - return ERR_PTR(-EINVAL); - } - module_put(ops->module); up_read(&nvmf_transports_rwsem); return ctrl; diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h index ef46c915b7b5..0cf0460a5c92 100644 --- a/drivers/nvme/host/fabrics.h +++ b/drivers/nvme/host/fabrics.h @@ -139,7 +139,9 @@ static inline bool nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl, struct nvmf_ctrl_options *opts) { - if (strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) || + if (ctrl->state == NVME_CTRL_DELETING || + ctrl->state == NVME_CTRL_DEAD || + strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) || strcmp(opts->host->nqn, ctrl->opts->host->nqn) || memcmp(&opts->host->id, &ctrl->opts->host->id, sizeof(uuid_t))) return false; diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 6cb26bcf6ec0..0bad65803271 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -1686,16 +1686,6 @@ done: goto check_error; } - /* - * Force failures of commands if we're killing the controller - * or have an error on a command used to create an new association - */ - if (status && - (blk_queue_dying(rq->q) || - ctrl->ctrl.state == NVME_CTRL_NEW || - ctrl->ctrl.state == NVME_CTRL_CONNECTING)) - status |= cpu_to_le16(NVME_SC_DNR << 1); - __nvme_fc_fcpop_chk_teardowns(ctrl, op, opstate); nvme_end_request(rq, status, result); @@ -2403,9 +2393,6 @@ nvme_fc_terminate_exchange(struct request *req, void *data, bool reserved) struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl); struct nvme_fc_fcp_op *op = blk_mq_rq_to_pdu(req); - if (!blk_mq_request_started(req)) - return; - __nvme_fc_abort_op(ctrl, op); } @@ -3284,6 +3271,8 @@ nvme_fc_create_ctrl(struct device *dev, struct nvmf_ctrl_options *opts) } spin_unlock_irqrestore(&nvme_fc_lock, flags); + pr_warn("%s: %s - %s combination not found\n", + __func__, opts->traddr, opts->host_traddr); return ERR_PTR(-ENOENT); } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 17d2f7cf3fed..de24fe77c80b 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -22,6 +22,7 @@ #include <linux/lightnvm.h> #include <linux/sed-opal.h> #include <linux/fault-inject.h> +#include <linux/rcupdate.h> extern unsigned int nvme_io_timeout; #define NVME_IO_TIMEOUT (nvme_io_timeout * HZ) @@ -180,6 +181,7 @@ struct nvme_ctrl { u16 kas; u8 npss; u8 apsta; + u32 oaes; u32 aen_result; unsigned int shutdown_timeout; unsigned int kato; @@ -192,6 +194,8 @@ struct nvme_ctrl { struct delayed_work ka_work; struct nvme_command ka_cmd; struct work_struct fw_act_work; +#define EVENT_NS_CHANGED (1 << 0) + unsigned long events; /* Power saving configuration */ u64 ps_max_latency_us; @@ -398,14 +402,13 @@ void nvme_stop_ctrl(struct nvme_ctrl *ctrl); void nvme_put_ctrl(struct nvme_ctrl *ctrl); int nvme_init_identify(struct nvme_ctrl *ctrl); -void nvme_queue_scan(struct nvme_ctrl *ctrl); void nvme_remove_namespaces(struct nvme_ctrl *ctrl); int nvme_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len, bool send); void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status, - union nvme_result *res); + volatile union nvme_result *res); void nvme_stop_queues(struct nvme_ctrl *ctrl); void nvme_start_queues(struct nvme_ctrl *ctrl); @@ -454,7 +457,7 @@ static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns) { struct nvme_ns_head *head = ns->head; - if (head && ns == srcu_dereference(head->current_path, &head->srcu)) + if (head && ns == rcu_access_pointer(head->current_path)) rcu_assign_pointer(head->current_path, NULL); } struct nvme_ns *nvme_find_path(struct nvme_ns_head *head); diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 17a0190bd88f..e526437bacbf 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -13,6 +13,7 @@ */ #include <linux/aer.h> +#include <linux/async.h> #include <linux/blkdev.h> #include <linux/blk-mq.h> #include <linux/blk-mq-pci.h> @@ -68,7 +69,6 @@ MODULE_PARM_DESC(io_queue_depth, "set io queue depth, should >= 2"); struct nvme_dev; struct nvme_queue; -static void nvme_process_cq(struct nvme_queue *nvmeq); static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown); /* @@ -147,9 +147,10 @@ static inline struct nvme_dev *to_nvme_dev(struct nvme_ctrl *ctrl) struct nvme_queue { struct device *q_dmadev; struct nvme_dev *dev; - spinlock_t q_lock; + spinlock_t sq_lock; struct nvme_command *sq_cmds; struct nvme_command __iomem *sq_cmds_io; + spinlock_t cq_lock ____cacheline_aligned_in_smp; volatile struct nvme_completion *cqes; struct blk_mq_tags **tags; dma_addr_t sq_dma_addr; @@ -159,9 +160,9 @@ struct nvme_queue { s16 cq_vector; u16 sq_tail; u16 cq_head; + u16 last_cq_head; u16 qid; u8 cq_phase; - u8 cqe_seen; u32 *dbbuf_sq_db; u32 *dbbuf_cq_db; u32 *dbbuf_sq_ei; @@ -420,28 +421,25 @@ static int nvme_pci_map_queues(struct blk_mq_tag_set *set) } /** - * __nvme_submit_cmd() - Copy a command into a queue and ring the doorbell + * nvme_submit_cmd() - Copy a command into a queue and ring the doorbell * @nvmeq: The queue to use * @cmd: The command to send - * - * Safe to use from interrupt context */ -static void __nvme_submit_cmd(struct nvme_queue *nvmeq, - struct nvme_command *cmd) +static void nvme_submit_cmd(struct nvme_queue *nvmeq, struct nvme_command *cmd) { - u16 tail = nvmeq->sq_tail; - + spin_lock(&nvmeq->sq_lock); if (nvmeq->sq_cmds_io) - memcpy_toio(&nvmeq->sq_cmds_io[tail], cmd, sizeof(*cmd)); + memcpy_toio(&nvmeq->sq_cmds_io[nvmeq->sq_tail], cmd, + sizeof(*cmd)); else - memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd)); + memcpy(&nvmeq->sq_cmds[nvmeq->sq_tail], cmd, sizeof(*cmd)); - if (++tail == nvmeq->q_depth) - tail = 0; - if (nvme_dbbuf_update_and_check_event(tail, nvmeq->dbbuf_sq_db, - nvmeq->dbbuf_sq_ei)) - writel(tail, nvmeq->q_db); - nvmeq->sq_tail = tail; + if (++nvmeq->sq_tail == nvmeq->q_depth) + nvmeq->sq_tail = 0; + if (nvme_dbbuf_update_and_check_event(nvmeq->sq_tail, + nvmeq->dbbuf_sq_db, nvmeq->dbbuf_sq_ei)) + writel(nvmeq->sq_tail, nvmeq->q_db); + spin_unlock(&nvmeq->sq_lock); } static void **nvme_pci_iod_list(struct request *req) @@ -872,6 +870,13 @@ static blk_status_t nvme_queue_rq(struct blk_mq_hw_ctx *hctx, struct nvme_command cmnd; blk_status_t ret; + /* + * We should not need to do this, but we're still using this to + * ensure we can drain requests on a dying queue. + */ + if (unlikely(nvmeq->cq_vector < 0)) + return BLK_STS_IOERR; + ret = nvme_setup_cmd(ns, req, &cmnd); if (ret) return ret; @@ -887,16 +892,7 @@ static blk_status_t nvme_queue_rq(struct blk_mq_hw_ctx *hctx, } blk_mq_start_request(req); - - spin_lock_irq(&nvmeq->q_lock); - if (unlikely(nvmeq->cq_vector < 0)) { - ret = BLK_STS_IOERR; - spin_unlock_irq(&nvmeq->q_lock); - goto out_cleanup_iod; - } - __nvme_submit_cmd(nvmeq, &cmnd); - nvme_process_cq(nvmeq); - spin_unlock_irq(&nvmeq->q_lock); + nvme_submit_cmd(nvmeq, &cmnd); return BLK_STS_OK; out_cleanup_iod: nvme_free_iod(dev, req); @@ -914,10 +910,10 @@ static void nvme_pci_complete_rq(struct request *req) } /* We read the CQE phase first to check if the rest of the entry is valid */ -static inline bool nvme_cqe_valid(struct nvme_queue *nvmeq, u16 head, - u16 phase) +static inline bool nvme_cqe_pending(struct nvme_queue *nvmeq) { - return (le16_to_cpu(nvmeq->cqes[head].status) & 1) == phase; + return (le16_to_cpu(nvmeq->cqes[nvmeq->cq_head].status) & 1) == + nvmeq->cq_phase; } static inline void nvme_ring_cq_doorbell(struct nvme_queue *nvmeq) @@ -931,9 +927,9 @@ static inline void nvme_ring_cq_doorbell(struct nvme_queue *nvmeq) } } -static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, - struct nvme_completion *cqe) +static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, u16 idx) { + volatile struct nvme_completion *cqe = &nvmeq->cqes[idx]; struct request *req; if (unlikely(cqe->command_id >= nvmeq->q_depth)) { @@ -956,83 +952,87 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq, return; } - nvmeq->cqe_seen = 1; req = blk_mq_tag_to_rq(*nvmeq->tags, cqe->command_id); nvme_end_request(req, cqe->status, cqe->result); } -static inline bool nvme_read_cqe(struct nvme_queue *nvmeq, - struct nvme_completion *cqe) +static void nvme_complete_cqes(struct nvme_queue *nvmeq, u16 start, u16 end) { - if (nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) { - *cqe = nvmeq->cqes[nvmeq->cq_head]; + while (start != end) { + nvme_handle_cqe(nvmeq, start); + if (++start == nvmeq->q_depth) + start = 0; + } +} - if (++nvmeq->cq_head == nvmeq->q_depth) { - nvmeq->cq_head = 0; - nvmeq->cq_phase = !nvmeq->cq_phase; - } - return true; +static inline void nvme_update_cq_head(struct nvme_queue *nvmeq) +{ + if (++nvmeq->cq_head == nvmeq->q_depth) { + nvmeq->cq_head = 0; + nvmeq->cq_phase = !nvmeq->cq_phase; } - return false; } -static void nvme_process_cq(struct nvme_queue *nvmeq) +static inline bool nvme_process_cq(struct nvme_queue *nvmeq, u16 *start, + u16 *end, int tag) { - struct nvme_completion cqe; - int consumed = 0; + bool found = false; - while (nvme_read_cqe(nvmeq, &cqe)) { - nvme_handle_cqe(nvmeq, &cqe); - consumed++; + *start = nvmeq->cq_head; + while (!found && nvme_cqe_pending(nvmeq)) { + if (nvmeq->cqes[nvmeq->cq_head].command_id == tag) + found = true; + nvme_update_cq_head(nvmeq); } + *end = nvmeq->cq_head; - if (consumed) + if (*start != *end) nvme_ring_cq_doorbell(nvmeq); + return found; } static irqreturn_t nvme_irq(int irq, void *data) { - irqreturn_t result; struct nvme_queue *nvmeq = data; - spin_lock(&nvmeq->q_lock); - nvme_process_cq(nvmeq); - result = nvmeq->cqe_seen ? IRQ_HANDLED : IRQ_NONE; - nvmeq->cqe_seen = 0; - spin_unlock(&nvmeq->q_lock); - return result; + irqreturn_t ret = IRQ_NONE; + u16 start, end; + + spin_lock(&nvmeq->cq_lock); + if (nvmeq->cq_head != nvmeq->last_cq_head) + ret = IRQ_HANDLED; + nvme_process_cq(nvmeq, &start, &end, -1); + nvmeq->last_cq_head = nvmeq->cq_head; + spin_unlock(&nvmeq->cq_lock); + + if (start != end) { + nvme_complete_cqes(nvmeq, start, end); + return IRQ_HANDLED; + } + + return ret; } static irqreturn_t nvme_irq_check(int irq, void *data) { struct nvme_queue *nvmeq = data; - if (nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) + if (nvme_cqe_pending(nvmeq)) return IRQ_WAKE_THREAD; return IRQ_NONE; } static int __nvme_poll(struct nvme_queue *nvmeq, unsigned int tag) { - struct nvme_completion cqe; - int found = 0, consumed = 0; + u16 start, end; + bool found; - if (!nvme_cqe_valid(nvmeq, nvmeq->cq_head, nvmeq->cq_phase)) + if (!nvme_cqe_pending(nvmeq)) return 0; - spin_lock_irq(&nvmeq->q_lock); - while (nvme_read_cqe(nvmeq, &cqe)) { - nvme_handle_cqe(nvmeq, &cqe); - consumed++; - - if (tag == cqe.command_id) { - found = 1; - break; - } - } - - if (consumed) - nvme_ring_cq_doorbell(nvmeq); - spin_unlock_irq(&nvmeq->q_lock); + spin_lock_irq(&nvmeq->cq_lock); + found = nvme_process_cq(nvmeq, &start, &end, tag); + spin_unlock_irq(&nvmeq->cq_lock); + nvme_complete_cqes(nvmeq, start, end); return found; } @@ -1052,10 +1052,7 @@ static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl) memset(&c, 0, sizeof(c)); c.common.opcode = nvme_admin_async_event; c.common.command_id = NVME_AQ_BLK_MQ_DEPTH; - - spin_lock_irq(&nvmeq->q_lock); - __nvme_submit_cmd(nvmeq, &c); - spin_unlock_irq(&nvmeq->q_lock); + nvme_submit_cmd(nvmeq, &c); } static int adapter_delete_queue(struct nvme_dev *dev, u8 opcode, u16 id) @@ -1070,7 +1067,7 @@ static int adapter_delete_queue(struct nvme_dev *dev, u8 opcode, u16 id) } static int adapter_alloc_cq(struct nvme_dev *dev, u16 qid, - struct nvme_queue *nvmeq) + struct nvme_queue *nvmeq, s16 vector) { struct nvme_command c; int flags = NVME_QUEUE_PHYS_CONTIG | NVME_CQ_IRQ_ENABLED; @@ -1085,7 +1082,7 @@ static int adapter_alloc_cq(struct nvme_dev *dev, u16 qid, c.create_cq.cqid = cpu_to_le16(qid); c.create_cq.qsize = cpu_to_le16(nvmeq->q_depth - 1); c.create_cq.cq_flags = cpu_to_le16(flags); - c.create_cq.irq_vector = cpu_to_le16(nvmeq->cq_vector); + c.create_cq.irq_vector = cpu_to_le16(vector); return nvme_submit_sync_cmd(dev->ctrl.admin_q, &c, NULL, 0); } @@ -1208,7 +1205,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) nvme_warn_reset(dev, csts); nvme_dev_disable(dev, false); nvme_reset_ctrl(&dev->ctrl); - return BLK_EH_HANDLED; + return BLK_EH_DONE; } /* @@ -1218,24 +1215,24 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) dev_warn(dev->ctrl.device, "I/O %d QID %d timeout, completion polled\n", req->tag, nvmeq->qid); - return BLK_EH_HANDLED; + return BLK_EH_DONE; } /* * Shutdown immediately if controller times out while starting. The * reset work will see the pci device disabled when it gets the forced * cancellation error. All outstanding requests are completed on - * shutdown, so we return BLK_EH_HANDLED. + * shutdown, so we return BLK_EH_DONE. */ switch (dev->ctrl.state) { case NVME_CTRL_CONNECTING: case NVME_CTRL_RESETTING: - dev_warn(dev->ctrl.device, + dev_warn_ratelimited(dev->ctrl.device, "I/O %d QID %d timeout, disable controller\n", req->tag, nvmeq->qid); nvme_dev_disable(dev, false); nvme_req(req)->flags |= NVME_REQ_CANCELLED; - return BLK_EH_HANDLED; + return BLK_EH_DONE; default: break; } @@ -1252,12 +1249,8 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved) nvme_dev_disable(dev, false); nvme_reset_ctrl(&dev->ctrl); - /* - * Mark the request as handled, since the inline shutdown - * forces all outstanding requests to complete. - */ nvme_req(req)->flags |= NVME_REQ_CANCELLED; - return BLK_EH_HANDLED; + return BLK_EH_DONE; } if (atomic_dec_return(&dev->ctrl.abort_limit) < 0) { @@ -1321,15 +1314,21 @@ static int nvme_suspend_queue(struct nvme_queue *nvmeq) { int vector; - spin_lock_irq(&nvmeq->q_lock); + spin_lock_irq(&nvmeq->cq_lock); if (nvmeq->cq_vector == -1) { - spin_unlock_irq(&nvmeq->q_lock); + spin_unlock_irq(&nvmeq->cq_lock); return 1; } vector = nvmeq->cq_vector; nvmeq->dev->online_queues--; nvmeq->cq_vector = -1; - spin_unlock_irq(&nvmeq->q_lock); + spin_unlock_irq(&nvmeq->cq_lock); + + /* + * Ensure that nvme_queue_rq() sees it ->cq_vector == -1 without + * having to grab the lock. + */ + mb(); if (!nvmeq->qid && nvmeq->dev->ctrl.admin_q) blk_mq_quiesce_queue(nvmeq->dev->ctrl.admin_q); @@ -1342,15 +1341,18 @@ static int nvme_suspend_queue(struct nvme_queue *nvmeq) static void nvme_disable_admin_queue(struct nvme_dev *dev, bool shutdown) { struct nvme_queue *nvmeq = &dev->queues[0]; + u16 start, end; if (shutdown) nvme_shutdown_ctrl(&dev->ctrl); else nvme_disable_ctrl(&dev->ctrl, dev->ctrl.cap); - spin_lock_irq(&nvmeq->q_lock); - nvme_process_cq(nvmeq); - spin_unlock_irq(&nvmeq->q_lock); + spin_lock_irq(&nvmeq->cq_lock); + nvme_process_cq(nvmeq, &start, &end, -1); + spin_unlock_irq(&nvmeq->cq_lock); + + nvme_complete_cqes(nvmeq, start, end); } static int nvme_cmb_qdepth(struct nvme_dev *dev, int nr_io_queues, @@ -1408,7 +1410,8 @@ static int nvme_alloc_queue(struct nvme_dev *dev, int qid, int depth) nvmeq->q_dmadev = dev->dev; nvmeq->dev = dev; - spin_lock_init(&nvmeq->q_lock); + spin_lock_init(&nvmeq->sq_lock); + spin_lock_init(&nvmeq->cq_lock); nvmeq->cq_head = 0; nvmeq->cq_phase = 1; nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride]; @@ -1444,7 +1447,7 @@ static void nvme_init_queue(struct nvme_queue *nvmeq, u16 qid) { struct nvme_dev *dev = nvmeq->dev; - spin_lock_irq(&nvmeq->q_lock); + spin_lock_irq(&nvmeq->cq_lock); nvmeq->sq_tail = 0; nvmeq->cq_head = 0; nvmeq->cq_phase = 1; @@ -1452,13 +1455,14 @@ static void nvme_init_queue(struct nvme_queue *nvmeq, u16 qid) memset((void *)nvmeq->cqes, 0, CQ_SIZE(nvmeq->q_depth)); nvme_dbbuf_init(dev, nvmeq, qid); dev->online_queues++; - spin_unlock_irq(&nvmeq->q_lock); + spin_unlock_irq(&nvmeq->cq_lock); } static int nvme_create_queue(struct nvme_queue *nvmeq, int qid) { struct nvme_dev *dev = nvmeq->dev; int result; + s16 vector; if (dev->cmb && use_cmb_sqes && (dev->cmbsz & NVME_CMBSZ_SQS)) { unsigned offset = (qid - 1) * roundup(SQ_SIZE(nvmeq->q_depth), @@ -1471,15 +1475,21 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid) * A queue's vector matches the queue identifier unless the controller * has only one vector available. */ - nvmeq->cq_vector = dev->num_vecs == 1 ? 0 : qid; - result = adapter_alloc_cq(dev, qid, nvmeq); + vector = dev->num_vecs == 1 ? 0 : qid; + result = adapter_alloc_cq(dev, qid, nvmeq, vector); if (result < 0) - goto release_vector; + goto out; result = adapter_alloc_sq(dev, qid, nvmeq); if (result < 0) goto release_cq; + /* + * Set cq_vector after alloc cq/sq, otherwise nvme_suspend_queue will + * invoke free_irq for it and cause a 'Trying to free already-free IRQ + * xxx' warning if the create CQ/SQ command times out. + */ + nvmeq->cq_vector = vector; nvme_init_queue(nvmeq, qid); result = queue_request_irq(nvmeq); if (result < 0) @@ -1487,13 +1497,13 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid) return result; - release_sq: +release_sq: + nvmeq->cq_vector = -1; dev->online_queues--; adapter_delete_sq(dev, qid); - release_cq: +release_cq: adapter_delete_cq(dev, qid); - release_vector: - nvmeq->cq_vector = -1; +out: return result; } @@ -1997,19 +2007,22 @@ static void nvme_del_queue_end(struct request *req, blk_status_t error) static void nvme_del_cq_end(struct request *req, blk_status_t error) { struct nvme_queue *nvmeq = req->end_io_data; + u16 start, end; if (!error) { unsigned long flags; /* - * We might be called with the AQ q_lock held - * and the I/O queue q_lock should always + * We might be called with the AQ cq_lock held + * and the I/O queue cq_lock should always * nest inside the AQ one. */ - spin_lock_irqsave_nested(&nvmeq->q_lock, flags, + spin_lock_irqsave_nested(&nvmeq->cq_lock, flags, SINGLE_DEPTH_NESTING); - nvme_process_cq(nvmeq); - spin_unlock_irqrestore(&nvmeq->q_lock, flags); + nvme_process_cq(nvmeq, &start, &end, -1); + spin_unlock_irqrestore(&nvmeq->cq_lock, flags); + + nvme_complete_cqes(nvmeq, start, end); } nvme_del_queue_end(req, error); @@ -2497,6 +2510,15 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev) return 0; } +static void nvme_async_probe(void *data, async_cookie_t cookie) +{ + struct nvme_dev *dev = data; + + nvme_reset_ctrl_sync(&dev->ctrl); + flush_work(&dev->ctrl.scan_work); + nvme_put_ctrl(&dev->ctrl); +} + static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int node, result = -ENOMEM; @@ -2541,7 +2563,8 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id) dev_info(dev->ctrl.device, "pci function %s\n", dev_name(&pdev->dev)); - nvme_reset_ctrl(&dev->ctrl); + nvme_get_ctrl(&dev->ctrl); + async_schedule(nvme_async_probe, dev); return 0; @@ -2685,6 +2708,9 @@ static pci_ers_result_t nvme_slot_reset(struct pci_dev *pdev) static void nvme_error_resume(struct pci_dev *pdev) { + struct nvme_dev *dev = pci_get_drvdata(pdev); + + flush_work(&dev->ctrl.reset_work); pci_cleanup_aer_uncorrect_error_status(pdev); } @@ -2714,6 +2740,8 @@ static const struct pci_device_id nvme_id_table[] = { NVME_QUIRK_MEDIUM_PRIO_SQ }, { PCI_VDEVICE(INTEL, 0x5845), /* Qemu emulated controller */ .driver_data = NVME_QUIRK_IDENTIFY_CNS, }, + { PCI_DEVICE(0x1bb1, 0x0100), /* Seagate Nytro Flash Storage */ + .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, }, { PCI_DEVICE(0x1c58, 0x0003), /* HGST adapter */ .driver_data = NVME_QUIRK_DELAY_BEFORE_CHK_RDY, }, { PCI_DEVICE(0x1c58, 0x0023), /* WDC SN200 adapter */ @@ -2728,6 +2756,8 @@ static const struct pci_device_id nvme_id_table[] = { .driver_data = NVME_QUIRK_LIGHTNVM, }, { PCI_DEVICE(0x1d1d, 0x2807), /* CNEX WL */ .driver_data = NVME_QUIRK_LIGHTNVM, }, + { PCI_DEVICE(0x1d1d, 0x2601), /* CNEX Granby */ + .driver_data = NVME_QUIRK_LIGHTNVM, }, { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_EXPRESS, 0xffffff) }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2001) }, { PCI_DEVICE(PCI_VENDOR_ID_APPLE, 0x2003) }, diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 1eb4438a8763..7b3f08410430 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -778,7 +778,7 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl, if (error) { dev_err(ctrl->ctrl.device, "prop_get NVME_REG_CAP failed\n"); - goto out_cleanup_queue; + goto out_stop_queue; } ctrl->ctrl.sqsize = @@ -786,23 +786,25 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl, error = nvme_enable_ctrl(&ctrl->ctrl, ctrl->ctrl.cap); if (error) - goto out_cleanup_queue; + goto out_stop_queue; ctrl->ctrl.max_hw_sectors = (ctrl->max_fr_pages - 1) << (ilog2(SZ_4K) - 9); error = nvme_init_identify(&ctrl->ctrl); if (error) - goto out_cleanup_queue; + goto out_stop_queue; error = nvme_rdma_alloc_qe(ctrl->queues[0].device->dev, &ctrl->async_event_sqe, sizeof(struct nvme_command), DMA_TO_DEVICE); if (error) - goto out_cleanup_queue; + goto out_stop_queue; return 0; +out_stop_queue: + nvme_rdma_stop_queue(&ctrl->queues[0]); out_cleanup_queue: if (new) blk_cleanup_queue(ctrl->ctrl.admin_q); @@ -1598,7 +1600,7 @@ nvme_rdma_timeout(struct request *rq, bool reserved) /* fail with DNR on cmd timeout */ nvme_req(rq)->status = NVME_SC_ABORT_REQ | NVME_SC_DNR; - return BLK_EH_HANDLED; + return BLK_EH_DONE; } static blk_status_t nvme_rdma_queue_rq(struct blk_mq_hw_ctx *hctx, diff --git a/drivers/nvme/host/trace.h b/drivers/nvme/host/trace.h index ea91fccd1bc0..01390f0e1671 100644 --- a/drivers/nvme/host/trace.h +++ b/drivers/nvme/host/trace.h @@ -148,8 +148,8 @@ TRACE_EVENT(nvme_complete_rq, __entry->flags = nvme_req(req)->flags; __entry->status = nvme_req(req)->status; ), - TP_printk("cmdid=%u, qid=%d, res=%llu, retries=%u, flags=0x%x, status=%u", - __entry->cid, __entry->qid, __entry->result, + TP_printk("qid=%d, cmdid=%u, res=%llu, retries=%u, flags=0x%x, status=%u", + __entry->qid, __entry->cid, __entry->result, __entry->retries, __entry->flags, __entry->status) ); diff --git a/drivers/nvme/target/Makefile b/drivers/nvme/target/Makefile index 488250189c99..8118c93391c6 100644 --- a/drivers/nvme/target/Makefile +++ b/drivers/nvme/target/Makefile @@ -6,8 +6,8 @@ obj-$(CONFIG_NVME_TARGET_RDMA) += nvmet-rdma.o obj-$(CONFIG_NVME_TARGET_FC) += nvmet-fc.o obj-$(CONFIG_NVME_TARGET_FCLOOP) += nvme-fcloop.o -nvmet-y += core.o configfs.o admin-cmd.o io-cmd.o fabrics-cmd.o \ - discovery.o +nvmet-y += core.o configfs.o admin-cmd.o fabrics-cmd.o \ + discovery.o io-cmd-file.o io-cmd-bdev.o nvme-loop-y += loop.o nvmet-rdma-y += rdma.o nvmet-fc-y += fc.o diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c index 5e0e9fcc0d4d..ead8fbe6922e 100644 --- a/drivers/nvme/target/admin-cmd.c +++ b/drivers/nvme/target/admin-cmd.c @@ -32,6 +32,11 @@ u32 nvmet_get_log_page_len(struct nvme_command *cmd) return len; } +static void nvmet_execute_get_log_page_noop(struct nvmet_req *req) +{ + nvmet_req_complete(req, nvmet_zero_sgl(req, 0, req->data_len)); +} + static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req, struct nvme_smart_log *slog) { @@ -45,6 +50,10 @@ static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req, return NVME_SC_INVALID_NS; } + /* we don't have the right data for file backed ns */ + if (!ns->bdev) + goto out; + host_reads = part_stat_read(ns->bdev->bd_part, ios[READ]); data_units_read = part_stat_read(ns->bdev->bd_part, sectors[READ]); host_writes = part_stat_read(ns->bdev->bd_part, ios[WRITE]); @@ -54,6 +63,7 @@ static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req, put_unaligned_le64(data_units_read, &slog->data_units_read[0]); put_unaligned_le64(host_writes, &slog->host_writes[0]); put_unaligned_le64(data_units_written, &slog->data_units_written[0]); +out: nvmet_put_namespace(ns); return NVME_SC_SUCCESS; @@ -71,6 +81,9 @@ static u16 nvmet_get_smart_log_all(struct nvmet_req *req, rcu_read_lock(); list_for_each_entry_rcu(ns, &ctrl->subsys->namespaces, dev_link) { + /* we don't have the right data for file backed ns */ + if (!ns->bdev) + continue; host_reads += part_stat_read(ns->bdev->bd_part, ios[READ]); data_units_read += part_stat_read(ns->bdev->bd_part, sectors[READ]); @@ -89,74 +102,50 @@ static u16 nvmet_get_smart_log_all(struct nvmet_req *req, return NVME_SC_SUCCESS; } -static u16 nvmet_get_smart_log(struct nvmet_req *req, - struct nvme_smart_log *slog) +static void nvmet_execute_get_log_page_smart(struct nvmet_req *req) { - u16 status; + struct nvme_smart_log *log; + u16 status = NVME_SC_INTERNAL; + + if (req->data_len != sizeof(*log)) + goto out; + + log = kzalloc(sizeof(*log), GFP_KERNEL); + if (!log) + goto out; - WARN_ON(req == NULL || slog == NULL); if (req->cmd->get_log_page.nsid == cpu_to_le32(NVME_NSID_ALL)) - status = nvmet_get_smart_log_all(req, slog); + status = nvmet_get_smart_log_all(req, log); else - status = nvmet_get_smart_log_nsid(req, slog); - return status; + status = nvmet_get_smart_log_nsid(req, log); + if (status) + goto out; + + status = nvmet_copy_to_sgl(req, 0, log, sizeof(*log)); +out: + nvmet_req_complete(req, status); } -static void nvmet_execute_get_log_page(struct nvmet_req *req) +static void nvmet_execute_get_log_changed_ns(struct nvmet_req *req) { - struct nvme_smart_log *smart_log; - size_t data_len = nvmet_get_log_page_len(req->cmd); - void *buf; - u16 status = 0; + struct nvmet_ctrl *ctrl = req->sq->ctrl; + u16 status = NVME_SC_INTERNAL; + size_t len; - buf = kzalloc(data_len, GFP_KERNEL); - if (!buf) { - status = NVME_SC_INTERNAL; + if (req->data_len != NVME_MAX_CHANGED_NAMESPACES * sizeof(__le32)) goto out; - } - switch (req->cmd->get_log_page.lid) { - case NVME_LOG_ERROR: - /* - * We currently never set the More bit in the status field, - * so all error log entries are invalid and can be zeroed out. - * This is called a minum viable implementation (TM) of this - * mandatory log page. - */ - break; - case NVME_LOG_SMART: - /* - * XXX: fill out actual smart log - * - * We might have a hard time coming up with useful values for - * many of the fields, and even when we have useful data - * available (e.g. units or commands read/written) those aren't - * persistent over power loss. - */ - if (data_len != sizeof(*smart_log)) { - status = NVME_SC_INTERNAL; - goto err; - } - smart_log = buf; - status = nvmet_get_smart_log(req, smart_log); - if (status) - goto err; - break; - case NVME_LOG_FW_SLOT: - /* - * We only support a single firmware slot which always is - * active, so we can zero out the whole firmware slot log and - * still claim to fully implement this mandatory log page. - */ - break; - default: - BUG(); - } - - status = nvmet_copy_to_sgl(req, 0, buf, data_len); - -err: - kfree(buf); + mutex_lock(&ctrl->lock); + if (ctrl->nr_changed_ns == U32_MAX) + len = sizeof(__le32); + else + len = ctrl->nr_changed_ns * sizeof(__le32); + status = nvmet_copy_to_sgl(req, 0, ctrl->changed_ns_list, len); + if (!status) + status = nvmet_zero_sgl(req, len, req->data_len - len); + ctrl->nr_changed_ns = 0; + clear_bit(NVME_AEN_CFG_NS_ATTR, &ctrl->aen_masked); + mutex_unlock(&ctrl->lock); out: nvmet_req_complete(req, status); } @@ -201,7 +190,7 @@ static void nvmet_execute_identify_ctrl(struct nvmet_req *req) id->ver = cpu_to_le32(ctrl->subsys->ver); /* XXX: figure out what to do about RTD3R/RTD3 */ - id->oaes = cpu_to_le32(1 << 8); + id->oaes = cpu_to_le32(NVMET_AEN_CFG_OPTIONAL); id->ctratt = cpu_to_le32(1 << 0); id->oacs = 0; @@ -447,6 +436,16 @@ static void nvmet_execute_set_features(struct nvmet_req *req) req->sq->ctrl->kato = DIV_ROUND_UP(val32, 1000); nvmet_set_result(req, req->sq->ctrl->kato); break; + case NVME_FEAT_ASYNC_EVENT: + val32 = le32_to_cpu(req->cmd->common.cdw10[1]); + if (val32 & ~NVMET_AEN_CFG_ALL) { + status = NVME_SC_INVALID_FIELD | NVME_SC_DNR; + break; + } + + WRITE_ONCE(req->sq->ctrl->aen_enabled, val32); + nvmet_set_result(req, val32); + break; case NVME_FEAT_HOST_ID: status = NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; break; @@ -485,9 +484,10 @@ static void nvmet_execute_get_features(struct nvmet_req *req) break; case NVME_FEAT_WRITE_ATOMIC: break; +#endif case NVME_FEAT_ASYNC_EVENT: + nvmet_set_result(req, READ_ONCE(req->sq->ctrl->aen_enabled)); break; -#endif case NVME_FEAT_VOLATILE_WC: nvmet_set_result(req, 1); break; @@ -548,8 +548,6 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req) struct nvme_command *cmd = req->cmd; u16 ret; - req->ns = NULL; - ret = nvmet_check_ctrl_status(req, cmd); if (unlikely(ret)) return ret; @@ -560,9 +558,28 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req) switch (cmd->get_log_page.lid) { case NVME_LOG_ERROR: + /* + * We currently never set the More bit in the status + * field, so all error log entries are invalid and can + * be zeroed out. This is called a minum viable + * implementation (TM) of this mandatory log page. + */ + req->execute = nvmet_execute_get_log_page_noop; + return 0; case NVME_LOG_SMART: + req->execute = nvmet_execute_get_log_page_smart; + return 0; case NVME_LOG_FW_SLOT: - req->execute = nvmet_execute_get_log_page; + /* + * We only support a single firmware slot which always + * is active, so we can zero out the whole firmware slot + * log and still claim to fully implement this mandatory + * log page. + */ + req->execute = nvmet_execute_get_log_page_noop; + return 0; + case NVME_LOG_CHANGED_NS: + req->execute = nvmet_execute_get_log_changed_ns; return 0; } break; diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index e95424f172fd..a03da764ecae 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -57,6 +57,13 @@ u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf, size_t len) return 0; } +u16 nvmet_zero_sgl(struct nvmet_req *req, off_t off, size_t len) +{ + if (sg_zero_buffer(req->sg, req->sg_cnt, len, off) != len) + return NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR; + return 0; +} + static unsigned int nvmet_max_nsid(struct nvmet_subsys *subsys) { struct nvmet_ns *ns; @@ -137,6 +144,51 @@ static void nvmet_add_async_event(struct nvmet_ctrl *ctrl, u8 event_type, schedule_work(&ctrl->async_event_work); } +static bool nvmet_aen_disabled(struct nvmet_ctrl *ctrl, u32 aen) +{ + if (!(READ_ONCE(ctrl->aen_enabled) & aen)) + return true; + return test_and_set_bit(aen, &ctrl->aen_masked); +} + +static void nvmet_add_to_changed_ns_log(struct nvmet_ctrl *ctrl, __le32 nsid) +{ + u32 i; + + mutex_lock(&ctrl->lock); + if (ctrl->nr_changed_ns > NVME_MAX_CHANGED_NAMESPACES) + goto out_unlock; + + for (i = 0; i < ctrl->nr_changed_ns; i++) { + if (ctrl->changed_ns_list[i] == nsid) + goto out_unlock; + } + + if (ctrl->nr_changed_ns == NVME_MAX_CHANGED_NAMESPACES) { + ctrl->changed_ns_list[0] = cpu_to_le32(0xffffffff); + ctrl->nr_changed_ns = U32_MAX; + goto out_unlock; + } + + ctrl->changed_ns_list[ctrl->nr_changed_ns++] = nsid; +out_unlock: + mutex_unlock(&ctrl->lock); +} + +static void nvmet_ns_changed(struct nvmet_subsys *subsys, u32 nsid) +{ + struct nvmet_ctrl *ctrl; + + list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry) { + nvmet_add_to_changed_ns_log(ctrl, cpu_to_le32(nsid)); + if (nvmet_aen_disabled(ctrl, NVME_AEN_CFG_NS_ATTR)) + continue; + nvmet_add_async_event(ctrl, NVME_AER_TYPE_NOTICE, + NVME_AER_NOTICE_NS_CHANGED, + NVME_LOG_CHANGED_NS); + } +} + int nvmet_register_transport(const struct nvmet_fabrics_ops *ops) { int ret = 0; @@ -271,33 +323,31 @@ void nvmet_put_namespace(struct nvmet_ns *ns) percpu_ref_put(&ns->ref); } +static void nvmet_ns_dev_disable(struct nvmet_ns *ns) +{ + nvmet_bdev_ns_disable(ns); + nvmet_file_ns_disable(ns); +} + int nvmet_ns_enable(struct nvmet_ns *ns) { struct nvmet_subsys *subsys = ns->subsys; - struct nvmet_ctrl *ctrl; int ret = 0; mutex_lock(&subsys->lock); if (ns->enabled) goto out_unlock; - ns->bdev = blkdev_get_by_path(ns->device_path, FMODE_READ | FMODE_WRITE, - NULL); - if (IS_ERR(ns->bdev)) { - pr_err("failed to open block device %s: (%ld)\n", - ns->device_path, PTR_ERR(ns->bdev)); - ret = PTR_ERR(ns->bdev); - ns->bdev = NULL; + ret = nvmet_bdev_ns_enable(ns); + if (ret) + ret = nvmet_file_ns_enable(ns); + if (ret) goto out_unlock; - } - - ns->size = i_size_read(ns->bdev->bd_inode); - ns->blksize_shift = blksize_bits(bdev_logical_block_size(ns->bdev)); ret = percpu_ref_init(&ns->ref, nvmet_destroy_namespace, 0, GFP_KERNEL); if (ret) - goto out_blkdev_put; + goto out_dev_put; if (ns->nsid > subsys->max_nsid) subsys->max_nsid = ns->nsid; @@ -320,24 +370,20 @@ int nvmet_ns_enable(struct nvmet_ns *ns) list_add_tail_rcu(&ns->dev_link, &old->dev_link); } - list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry) - nvmet_add_async_event(ctrl, NVME_AER_TYPE_NOTICE, 0, 0); - + nvmet_ns_changed(subsys, ns->nsid); ns->enabled = true; ret = 0; out_unlock: mutex_unlock(&subsys->lock); return ret; -out_blkdev_put: - blkdev_put(ns->bdev, FMODE_WRITE|FMODE_READ); - ns->bdev = NULL; +out_dev_put: + nvmet_ns_dev_disable(ns); goto out_unlock; } void nvmet_ns_disable(struct nvmet_ns *ns) { struct nvmet_subsys *subsys = ns->subsys; - struct nvmet_ctrl *ctrl; mutex_lock(&subsys->lock); if (!ns->enabled) @@ -363,11 +409,8 @@ void nvmet_ns_disable(struct nvmet_ns *ns) percpu_ref_exit(&ns->ref); mutex_lock(&subsys->lock); - list_for_each_entry(ctrl, &subsys->ctrls, subsys_entry) - nvmet_add_async_event(ctrl, NVME_AER_TYPE_NOTICE, 0, 0); - - if (ns->bdev) - blkdev_put(ns->bdev, FMODE_WRITE|FMODE_READ); + nvmet_ns_changed(subsys, ns->nsid); + nvmet_ns_dev_disable(ns); out_unlock: mutex_unlock(&subsys->lock); } @@ -499,6 +542,25 @@ int nvmet_sq_init(struct nvmet_sq *sq) } EXPORT_SYMBOL_GPL(nvmet_sq_init); +static u16 nvmet_parse_io_cmd(struct nvmet_req *req) +{ + struct nvme_command *cmd = req->cmd; + u16 ret; + + ret = nvmet_check_ctrl_status(req, cmd); + if (unlikely(ret)) + return ret; + + req->ns = nvmet_find_namespace(req->sq->ctrl, cmd->rw.nsid); + if (unlikely(!req->ns)) + return NVME_SC_INVALID_NS | NVME_SC_DNR; + + if (req->ns->file) + return nvmet_file_parse_io_cmd(req); + else + return nvmet_bdev_parse_io_cmd(req); +} + bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq, struct nvmet_sq *sq, const struct nvmet_fabrics_ops *ops) { @@ -710,15 +772,14 @@ out: u16 nvmet_check_ctrl_status(struct nvmet_req *req, struct nvme_command *cmd) { if (unlikely(!(req->sq->ctrl->cc & NVME_CC_ENABLE))) { - pr_err("got io cmd %d while CC.EN == 0 on qid = %d\n", + pr_err("got cmd %d while CC.EN == 0 on qid = %d\n", cmd->common.opcode, req->sq->qid); return NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; } if (unlikely(!(req->sq->ctrl->csts & NVME_CSTS_RDY))) { - pr_err("got io cmd %d while CSTS.RDY == 0 on qid = %d\n", + pr_err("got cmd %d while CSTS.RDY == 0 on qid = %d\n", cmd->common.opcode, req->sq->qid); - req->ns = NULL; return NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; } return 0; @@ -809,12 +870,18 @@ u16 nvmet_alloc_ctrl(const char *subsysnqn, const char *hostnqn, kref_init(&ctrl->ref); ctrl->subsys = subsys; + WRITE_ONCE(ctrl->aen_enabled, NVMET_AEN_CFG_OPTIONAL); + + ctrl->changed_ns_list = kmalloc_array(NVME_MAX_CHANGED_NAMESPACES, + sizeof(__le32), GFP_KERNEL); + if (!ctrl->changed_ns_list) + goto out_free_ctrl; ctrl->cqs = kcalloc(subsys->max_qid + 1, sizeof(struct nvmet_cq *), GFP_KERNEL); if (!ctrl->cqs) - goto out_free_ctrl; + goto out_free_changed_ns_list; ctrl->sqs = kcalloc(subsys->max_qid + 1, sizeof(struct nvmet_sq *), @@ -872,6 +939,8 @@ out_free_sqs: kfree(ctrl->sqs); out_free_cqs: kfree(ctrl->cqs); +out_free_changed_ns_list: + kfree(ctrl->changed_ns_list); out_free_ctrl: kfree(ctrl); out_put_subsystem: @@ -898,6 +967,7 @@ static void nvmet_ctrl_free(struct kref *ref) kfree(ctrl->sqs); kfree(ctrl->cqs); + kfree(ctrl->changed_ns_list); kfree(ctrl); nvmet_subsys_put(subsys); diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c index 231e04e0a496..08656b849bd6 100644 --- a/drivers/nvme/target/discovery.c +++ b/drivers/nvme/target/discovery.c @@ -187,8 +187,6 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req) { struct nvme_command *cmd = req->cmd; - req->ns = NULL; - if (unlikely(!(req->sq->ctrl->csts & NVME_CSTS_RDY))) { pr_err("got cmd %d while not ready\n", cmd->common.opcode); diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c index 19e9e42ae943..d84ae004cb85 100644 --- a/drivers/nvme/target/fabrics-cmd.c +++ b/drivers/nvme/target/fabrics-cmd.c @@ -77,8 +77,6 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req) { struct nvme_command *cmd = req->cmd; - req->ns = NULL; - switch (cmd->fabrics.fctype) { case nvme_fabrics_type_property_set: req->data_len = 0; @@ -242,8 +240,6 @@ u16 nvmet_parse_connect_cmd(struct nvmet_req *req) { struct nvme_command *cmd = req->cmd; - req->ns = NULL; - if (cmd->common.opcode != nvme_fabrics_command) { pr_err("invalid command 0x%x on unconnected queue.\n", cmd->fabrics.opcode); diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c index 33ee8d3145f8..408279cb6f2c 100644 --- a/drivers/nvme/target/fc.c +++ b/drivers/nvme/target/fc.c @@ -31,7 +31,7 @@ /* *************************** Data Structures/Defines ****************** */ -#define NVMET_LS_CTX_COUNT 4 +#define NVMET_LS_CTX_COUNT 256 /* for this implementation, assume small single frame rqst/rsp */ #define NVME_FC_MAX_LS_BUFFER_SIZE 2048 diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd-bdev.c index cd2344179673..e0b0f7df70c2 100644 --- a/drivers/nvme/target/io-cmd.c +++ b/drivers/nvme/target/io-cmd-bdev.c @@ -16,6 +16,34 @@ #include <linux/module.h> #include "nvmet.h" +int nvmet_bdev_ns_enable(struct nvmet_ns *ns) +{ + int ret; + + ns->bdev = blkdev_get_by_path(ns->device_path, + FMODE_READ | FMODE_WRITE, NULL); + if (IS_ERR(ns->bdev)) { + ret = PTR_ERR(ns->bdev); + if (ret != -ENOTBLK) { + pr_err("failed to open block device %s: (%ld)\n", + ns->device_path, PTR_ERR(ns->bdev)); + } + ns->bdev = NULL; + return ret; + } + ns->size = i_size_read(ns->bdev->bd_inode); + ns->blksize_shift = blksize_bits(bdev_logical_block_size(ns->bdev)); + return 0; +} + +void nvmet_bdev_ns_disable(struct nvmet_ns *ns) +{ + if (ns->bdev) { + blkdev_put(ns->bdev, FMODE_WRITE | FMODE_READ); + ns->bdev = NULL; + } +} + static void nvmet_bio_done(struct bio *bio) { struct nvmet_req *req = bio->bi_private; @@ -23,20 +51,14 @@ static void nvmet_bio_done(struct bio *bio) nvmet_req_complete(req, bio->bi_status ? NVME_SC_INTERNAL | NVME_SC_DNR : 0); - if (bio != &req->inline_bio) + if (bio != &req->b.inline_bio) bio_put(bio); } -static inline u32 nvmet_rw_len(struct nvmet_req *req) -{ - return ((u32)le16_to_cpu(req->cmd->rw.length) + 1) << - req->ns->blksize_shift; -} - -static void nvmet_execute_rw(struct nvmet_req *req) +static void nvmet_bdev_execute_rw(struct nvmet_req *req) { int sg_cnt = req->sg_cnt; - struct bio *bio = &req->inline_bio; + struct bio *bio = &req->b.inline_bio; struct scatterlist *sg; sector_t sector; blk_qc_t cookie; @@ -89,9 +111,9 @@ static void nvmet_execute_rw(struct nvmet_req *req) blk_poll(bdev_get_queue(req->ns->bdev), cookie); } -static void nvmet_execute_flush(struct nvmet_req *req) +static void nvmet_bdev_execute_flush(struct nvmet_req *req) { - struct bio *bio = &req->inline_bio; + struct bio *bio = &req->b.inline_bio; bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec)); bio_set_dev(bio, req->ns->bdev); @@ -102,7 +124,7 @@ static void nvmet_execute_flush(struct nvmet_req *req) submit_bio(bio); } -static u16 nvmet_discard_range(struct nvmet_ns *ns, +static u16 nvmet_bdev_discard_range(struct nvmet_ns *ns, struct nvme_dsm_range *range, struct bio **bio) { int ret; @@ -116,7 +138,7 @@ static u16 nvmet_discard_range(struct nvmet_ns *ns, return 0; } -static void nvmet_execute_discard(struct nvmet_req *req) +static void nvmet_bdev_execute_discard(struct nvmet_req *req) { struct nvme_dsm_range range; struct bio *bio = NULL; @@ -129,7 +151,7 @@ static void nvmet_execute_discard(struct nvmet_req *req) if (status) break; - status = nvmet_discard_range(req->ns, &range, &bio); + status = nvmet_bdev_discard_range(req->ns, &range, &bio); if (status) break; } @@ -148,11 +170,11 @@ static void nvmet_execute_discard(struct nvmet_req *req) } } -static void nvmet_execute_dsm(struct nvmet_req *req) +static void nvmet_bdev_execute_dsm(struct nvmet_req *req) { switch (le32_to_cpu(req->cmd->dsm.attributes)) { case NVME_DSMGMT_AD: - nvmet_execute_discard(req); + nvmet_bdev_execute_discard(req); return; case NVME_DSMGMT_IDR: case NVME_DSMGMT_IDW: @@ -163,7 +185,7 @@ static void nvmet_execute_dsm(struct nvmet_req *req) } } -static void nvmet_execute_write_zeroes(struct nvmet_req *req) +static void nvmet_bdev_execute_write_zeroes(struct nvmet_req *req) { struct nvme_write_zeroes_cmd *write_zeroes = &req->cmd->write_zeroes; struct bio *bio = NULL; @@ -189,38 +211,27 @@ static void nvmet_execute_write_zeroes(struct nvmet_req *req) } } -u16 nvmet_parse_io_cmd(struct nvmet_req *req) +u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req) { struct nvme_command *cmd = req->cmd; - u16 ret; - - ret = nvmet_check_ctrl_status(req, cmd); - if (unlikely(ret)) { - req->ns = NULL; - return ret; - } - - req->ns = nvmet_find_namespace(req->sq->ctrl, cmd->rw.nsid); - if (unlikely(!req->ns)) - return NVME_SC_INVALID_NS | NVME_SC_DNR; switch (cmd->common.opcode) { case nvme_cmd_read: case nvme_cmd_write: - req->execute = nvmet_execute_rw; + req->execute = nvmet_bdev_execute_rw; req->data_len = nvmet_rw_len(req); return 0; case nvme_cmd_flush: - req->execute = nvmet_execute_flush; + req->execute = nvmet_bdev_execute_flush; req->data_len = 0; return 0; case nvme_cmd_dsm: - req->execute = nvmet_execute_dsm; + req->execute = nvmet_bdev_execute_dsm; req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) * sizeof(struct nvme_dsm_range); return 0; case nvme_cmd_write_zeroes: - req->execute = nvmet_execute_write_zeroes; + req->execute = nvmet_bdev_execute_write_zeroes; return 0; default: pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode, diff --git a/drivers/nvme/target/io-cmd-file.c b/drivers/nvme/target/io-cmd-file.c new file mode 100644 index 000000000000..8c42b3a8c420 --- /dev/null +++ b/drivers/nvme/target/io-cmd-file.c @@ -0,0 +1,304 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * NVMe Over Fabrics Target File I/O commands implementation. + * Copyright (c) 2017-2018 Western Digital Corporation or its + * affiliates. + */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/uio.h> +#include <linux/falloc.h> +#include <linux/file.h> +#include "nvmet.h" + +#define NVMET_MAX_MPOOL_BVEC 16 +#define NVMET_MIN_MPOOL_OBJ 16 + +void nvmet_file_ns_disable(struct nvmet_ns *ns) +{ + if (ns->file) { + mempool_destroy(ns->bvec_pool); + ns->bvec_pool = NULL; + kmem_cache_destroy(ns->bvec_cache); + ns->bvec_cache = NULL; + fput(ns->file); + ns->file = NULL; + } +} + +int nvmet_file_ns_enable(struct nvmet_ns *ns) +{ + int ret; + struct kstat stat; + + ns->file = filp_open(ns->device_path, + O_RDWR | O_LARGEFILE | O_DIRECT, 0); + if (IS_ERR(ns->file)) { + pr_err("failed to open file %s: (%ld)\n", + ns->device_path, PTR_ERR(ns->file)); + return PTR_ERR(ns->file); + } + + ret = vfs_getattr(&ns->file->f_path, + &stat, STATX_SIZE, AT_STATX_FORCE_SYNC); + if (ret) + goto err; + + ns->size = stat.size; + ns->blksize_shift = file_inode(ns->file)->i_blkbits; + + ns->bvec_cache = kmem_cache_create("nvmet-bvec", + NVMET_MAX_MPOOL_BVEC * sizeof(struct bio_vec), + 0, SLAB_HWCACHE_ALIGN, NULL); + if (!ns->bvec_cache) { + ret = -ENOMEM; + goto err; + } + + ns->bvec_pool = mempool_create(NVMET_MIN_MPOOL_OBJ, mempool_alloc_slab, + mempool_free_slab, ns->bvec_cache); + + if (!ns->bvec_pool) { + ret = -ENOMEM; + goto err; + } + + return ret; +err: + ns->size = 0; + ns->blksize_shift = 0; + nvmet_file_ns_disable(ns); + return ret; +} + +static void nvmet_file_init_bvec(struct bio_vec *bv, struct sg_page_iter *iter) +{ + bv->bv_page = sg_page_iter_page(iter); + bv->bv_offset = iter->sg->offset; + bv->bv_len = PAGE_SIZE - iter->sg->offset; +} + +static ssize_t nvmet_file_submit_bvec(struct nvmet_req *req, loff_t pos, + unsigned long nr_segs, size_t count) +{ + struct kiocb *iocb = &req->f.iocb; + ssize_t (*call_iter)(struct kiocb *iocb, struct iov_iter *iter); + struct iov_iter iter; + int ki_flags = 0, rw; + ssize_t ret; + + if (req->cmd->rw.opcode == nvme_cmd_write) { + if (req->cmd->rw.control & cpu_to_le16(NVME_RW_FUA)) + ki_flags = IOCB_DSYNC; + call_iter = req->ns->file->f_op->write_iter; + rw = WRITE; + } else { + call_iter = req->ns->file->f_op->read_iter; + rw = READ; + } + + iov_iter_bvec(&iter, ITER_BVEC | rw, req->f.bvec, nr_segs, count); + + iocb->ki_pos = pos; + iocb->ki_filp = req->ns->file; + iocb->ki_flags = IOCB_DIRECT | ki_flags; + + ret = call_iter(iocb, &iter); + + if (ret != -EIOCBQUEUED && iocb->ki_complete) + iocb->ki_complete(iocb, ret, 0); + + return ret; +} + +static void nvmet_file_io_done(struct kiocb *iocb, long ret, long ret2) +{ + struct nvmet_req *req = container_of(iocb, struct nvmet_req, f.iocb); + + if (req->f.bvec != req->inline_bvec) { + if (likely(req->f.mpool_alloc == false)) + kfree(req->f.bvec); + else + mempool_free(req->f.bvec, req->ns->bvec_pool); + } + + nvmet_req_complete(req, ret != req->data_len ? + NVME_SC_INTERNAL | NVME_SC_DNR : 0); +} + +static void nvmet_file_execute_rw(struct nvmet_req *req) +{ + ssize_t nr_bvec = DIV_ROUND_UP(req->data_len, PAGE_SIZE); + struct sg_page_iter sg_pg_iter; + unsigned long bv_cnt = 0; + bool is_sync = false; + size_t len = 0, total_len = 0; + ssize_t ret = 0; + loff_t pos; + + if (!req->sg_cnt || !nr_bvec) { + nvmet_req_complete(req, 0); + return; + } + + if (nr_bvec > NVMET_MAX_INLINE_BIOVEC) + req->f.bvec = kmalloc_array(nr_bvec, sizeof(struct bio_vec), + GFP_KERNEL); + else + req->f.bvec = req->inline_bvec; + + req->f.mpool_alloc = false; + if (unlikely(!req->f.bvec)) { + /* fallback under memory pressure */ + req->f.bvec = mempool_alloc(req->ns->bvec_pool, GFP_KERNEL); + req->f.mpool_alloc = true; + if (nr_bvec > NVMET_MAX_MPOOL_BVEC) + is_sync = true; + } + + pos = le64_to_cpu(req->cmd->rw.slba) << req->ns->blksize_shift; + + memset(&req->f.iocb, 0, sizeof(struct kiocb)); + for_each_sg_page(req->sg, &sg_pg_iter, req->sg_cnt, 0) { + nvmet_file_init_bvec(&req->f.bvec[bv_cnt], &sg_pg_iter); + len += req->f.bvec[bv_cnt].bv_len; + total_len += req->f.bvec[bv_cnt].bv_len; + bv_cnt++; + + WARN_ON_ONCE((nr_bvec - 1) < 0); + + if (unlikely(is_sync) && + (nr_bvec - 1 == 0 || bv_cnt == NVMET_MAX_MPOOL_BVEC)) { + ret = nvmet_file_submit_bvec(req, pos, bv_cnt, len); + if (ret < 0) + goto out; + pos += len; + bv_cnt = 0; + len = 0; + } + nr_bvec--; + } + + if (WARN_ON_ONCE(total_len != req->data_len)) + ret = -EIO; +out: + if (unlikely(is_sync || ret)) { + nvmet_file_io_done(&req->f.iocb, ret < 0 ? ret : total_len, 0); + return; + } + req->f.iocb.ki_complete = nvmet_file_io_done; + nvmet_file_submit_bvec(req, pos, bv_cnt, total_len); +} + +static void nvmet_file_flush_work(struct work_struct *w) +{ + struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); + int ret; + + ret = vfs_fsync(req->ns->file, 1); + + nvmet_req_complete(req, ret < 0 ? NVME_SC_INTERNAL | NVME_SC_DNR : 0); +} + +static void nvmet_file_execute_flush(struct nvmet_req *req) +{ + INIT_WORK(&req->f.work, nvmet_file_flush_work); + schedule_work(&req->f.work); +} + +static void nvmet_file_execute_discard(struct nvmet_req *req) +{ + int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE; + struct nvme_dsm_range range; + loff_t offset; + loff_t len; + int i, ret; + + for (i = 0; i <= le32_to_cpu(req->cmd->dsm.nr); i++) { + if (nvmet_copy_from_sgl(req, i * sizeof(range), &range, + sizeof(range))) + break; + offset = le64_to_cpu(range.slba) << req->ns->blksize_shift; + len = le32_to_cpu(range.nlb) << req->ns->blksize_shift; + ret = vfs_fallocate(req->ns->file, mode, offset, len); + if (ret) + break; + } + + nvmet_req_complete(req, ret < 0 ? NVME_SC_INTERNAL | NVME_SC_DNR : 0); +} + +static void nvmet_file_dsm_work(struct work_struct *w) +{ + struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); + + switch (le32_to_cpu(req->cmd->dsm.attributes)) { + case NVME_DSMGMT_AD: + nvmet_file_execute_discard(req); + return; + case NVME_DSMGMT_IDR: + case NVME_DSMGMT_IDW: + default: + /* Not supported yet */ + nvmet_req_complete(req, 0); + return; + } +} + +static void nvmet_file_execute_dsm(struct nvmet_req *req) +{ + INIT_WORK(&req->f.work, nvmet_file_dsm_work); + schedule_work(&req->f.work); +} + +static void nvmet_file_write_zeroes_work(struct work_struct *w) +{ + struct nvmet_req *req = container_of(w, struct nvmet_req, f.work); + struct nvme_write_zeroes_cmd *write_zeroes = &req->cmd->write_zeroes; + int mode = FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE; + loff_t offset; + loff_t len; + int ret; + + offset = le64_to_cpu(write_zeroes->slba) << req->ns->blksize_shift; + len = (((sector_t)le16_to_cpu(write_zeroes->length) + 1) << + req->ns->blksize_shift); + + ret = vfs_fallocate(req->ns->file, mode, offset, len); + nvmet_req_complete(req, ret < 0 ? NVME_SC_INTERNAL | NVME_SC_DNR : 0); +} + +static void nvmet_file_execute_write_zeroes(struct nvmet_req *req) +{ + INIT_WORK(&req->f.work, nvmet_file_write_zeroes_work); + schedule_work(&req->f.work); +} + +u16 nvmet_file_parse_io_cmd(struct nvmet_req *req) +{ + struct nvme_command *cmd = req->cmd; + + switch (cmd->common.opcode) { + case nvme_cmd_read: + case nvme_cmd_write: + req->execute = nvmet_file_execute_rw; + req->data_len = nvmet_rw_len(req); + return 0; + case nvme_cmd_flush: + req->execute = nvmet_file_execute_flush; + req->data_len = 0; + return 0; + case nvme_cmd_dsm: + req->execute = nvmet_file_execute_dsm; + req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) * + sizeof(struct nvme_dsm_range); + return 0; + case nvme_cmd_write_zeroes: + req->execute = nvmet_file_execute_write_zeroes; + req->data_len = 0; + return 0; + default: + pr_err("unhandled cmd for file ns %d on qid %d\n", + cmd->common.opcode, req->sq->qid); + return NVME_SC_INVALID_OPCODE | NVME_SC_DNR; + } +} diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 27a8561c0cb9..1304ec3a7ede 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -45,6 +45,7 @@ struct nvme_loop_ctrl { struct nvme_ctrl ctrl; struct nvmet_ctrl *target_ctrl; + struct nvmet_port *port; }; static inline struct nvme_loop_ctrl *to_loop_ctrl(struct nvme_ctrl *ctrl) @@ -63,7 +64,8 @@ struct nvme_loop_queue { unsigned long flags; }; -static struct nvmet_port *nvmet_loop_port; +static LIST_HEAD(nvme_loop_ports); +static DEFINE_MUTEX(nvme_loop_ports_mutex); static LIST_HEAD(nvme_loop_ctrl_list); static DEFINE_MUTEX(nvme_loop_ctrl_mutex); @@ -146,7 +148,7 @@ nvme_loop_timeout(struct request *rq, bool reserved) /* fail with DNR on admin cmd timeout */ nvme_req(rq)->status = NVME_SC_ABORT_REQ | NVME_SC_DNR; - return BLK_EH_HANDLED; + return BLK_EH_DONE; } static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx, @@ -169,12 +171,12 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx, blk_mq_start_request(req); iod->cmd.common.flags |= NVME_CMD_SGL_METABUF; - iod->req.port = nvmet_loop_port; + iod->req.port = queue->ctrl->port; if (!nvmet_req_init(&iod->req, &queue->nvme_cq, &queue->nvme_sq, &nvme_loop_ops)) return BLK_STS_OK; - if (blk_rq_payload_bytes(req)) { + if (blk_rq_nr_phys_segments(req)) { iod->sg_table.sgl = iod->first_sgl; if (sg_alloc_table_chained(&iod->sg_table, blk_rq_nr_phys_segments(req), @@ -517,6 +519,7 @@ static const struct nvme_ctrl_ops nvme_loop_ctrl_ops = { .free_ctrl = nvme_loop_free_ctrl, .submit_async_event = nvme_loop_submit_async_event, .delete_ctrl = nvme_loop_delete_ctrl_host, + .get_address = nvmf_get_address, }; static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl) @@ -565,6 +568,23 @@ out_destroy_queues: return ret; } +static struct nvmet_port *nvme_loop_find_port(struct nvme_ctrl *ctrl) +{ + struct nvmet_port *p, *found = NULL; + + mutex_lock(&nvme_loop_ports_mutex); + list_for_each_entry(p, &nvme_loop_ports, entry) { + /* if no transport address is specified use the first port */ + if ((ctrl->opts->mask & NVMF_OPT_TRADDR) && + strcmp(ctrl->opts->traddr, p->disc_addr.traddr)) + continue; + found = p; + break; + } + mutex_unlock(&nvme_loop_ports_mutex); + return found; +} + static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev, struct nvmf_ctrl_options *opts) { @@ -589,6 +609,7 @@ static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev, ctrl->ctrl.sqsize = opts->queue_size - 1; ctrl->ctrl.kato = opts->kato; + ctrl->port = nvme_loop_find_port(&ctrl->ctrl); ctrl->queues = kcalloc(opts->nr_io_queues + 1, sizeof(*ctrl->queues), GFP_KERNEL); @@ -646,27 +667,17 @@ out_put_ctrl: static int nvme_loop_add_port(struct nvmet_port *port) { - /* - * XXX: disalow adding more than one port so - * there is no connection rejections when a - * a subsystem is assigned to a port for which - * loop doesn't have a pointer. - * This scenario would be possible if we allowed - * more than one port to be added and a subsystem - * was assigned to a port other than nvmet_loop_port. - */ - - if (nvmet_loop_port) - return -EPERM; - - nvmet_loop_port = port; + mutex_lock(&nvme_loop_ports_mutex); + list_add_tail(&port->entry, &nvme_loop_ports); + mutex_unlock(&nvme_loop_ports_mutex); return 0; } static void nvme_loop_remove_port(struct nvmet_port *port) { - if (port == nvmet_loop_port) - nvmet_loop_port = NULL; + mutex_lock(&nvme_loop_ports_mutex); + list_del_init(&port->entry); + mutex_unlock(&nvme_loop_ports_mutex); } static const struct nvmet_fabrics_ops nvme_loop_ops = { @@ -682,6 +693,7 @@ static struct nvmf_transport_ops nvme_loop_transport = { .name = "loop", .module = THIS_MODULE, .create_ctrl = nvme_loop_create_ctrl, + .allowed_opts = NVMF_OPT_TRADDR, }; static int __init nvme_loop_init_module(void) diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 15fd84ab21f8..480dfe10fad9 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -30,6 +30,21 @@ #define NVMET_ASYNC_EVENTS 4 #define NVMET_ERROR_LOG_SLOTS 128 + +/* + * Supported optional AENs: + */ +#define NVMET_AEN_CFG_OPTIONAL \ + NVME_AEN_CFG_NS_ATTR + +/* + * Plus mandatory SMART AENs (we'll never send them, but allow enabling them): + */ +#define NVMET_AEN_CFG_ALL \ + (NVME_SMART_CRIT_SPARE | NVME_SMART_CRIT_TEMPERATURE | \ + NVME_SMART_CRIT_RELIABILITY | NVME_SMART_CRIT_MEDIA | \ + NVME_SMART_CRIT_VOLATILE_MEMORY | NVMET_AEN_CFG_OPTIONAL) + /* Helper Macros when NVMe error is NVME_SC_CONNECT_INVALID_PARAM * The 16 bit shift is to set IATTR bit to 1, which means offending * offset starts in the data section of connect() @@ -43,6 +58,7 @@ struct nvmet_ns { struct list_head dev_link; struct percpu_ref ref; struct block_device *bdev; + struct file *file; u32 nsid; u32 blksize_shift; loff_t size; @@ -57,6 +73,8 @@ struct nvmet_ns { struct config_group group; struct completion disable_done; + mempool_t *bvec_pool; + struct kmem_cache *bvec_cache; }; static inline struct nvmet_ns *to_nvmet_ns(struct config_item *item) @@ -82,7 +100,7 @@ struct nvmet_sq { /** * struct nvmet_port - Common structure to keep port * information for the target. - * @entry: List head for holding a list of these elements. + * @entry: Entry into referrals or transport list. * @disc_addr: Address information is stored in a format defined * for a discovery log page entry. * @group: ConfigFS group for this element's folder. @@ -120,6 +138,8 @@ struct nvmet_ctrl { u16 cntlid; u32 kato; + u32 aen_enabled; + unsigned long aen_masked; struct nvmet_req *async_event_cmds[NVMET_ASYNC_EVENTS]; unsigned int nr_async_event_cmds; struct list_head async_events; @@ -132,6 +152,9 @@ struct nvmet_ctrl { const struct nvmet_fabrics_ops *ops; + __le32 *changed_ns_list; + u32 nr_changed_ns; + char subsysnqn[NVMF_NQN_FIELD_LEN]; char hostnqn[NVMF_NQN_FIELD_LEN]; }; @@ -222,8 +245,18 @@ struct nvmet_req { struct nvmet_cq *cq; struct nvmet_ns *ns; struct scatterlist *sg; - struct bio inline_bio; struct bio_vec inline_bvec[NVMET_MAX_INLINE_BIOVEC]; + union { + struct { + struct bio inline_bio; + } b; + struct { + bool mpool_alloc; + struct kiocb iocb; + struct bio_vec *bvec; + struct work_struct work; + } f; + }; int sg_cnt; /* data length as parsed from the command: */ size_t data_len; @@ -263,7 +296,8 @@ struct nvmet_async_event { }; u16 nvmet_parse_connect_cmd(struct nvmet_req *req); -u16 nvmet_parse_io_cmd(struct nvmet_req *req); +u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req); +u16 nvmet_file_parse_io_cmd(struct nvmet_req *req); u16 nvmet_parse_admin_cmd(struct nvmet_req *req); u16 nvmet_parse_discovery_cmd(struct nvmet_req *req); u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req); @@ -316,6 +350,7 @@ u16 nvmet_copy_to_sgl(struct nvmet_req *req, off_t off, const void *buf, size_t len); u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf, size_t len); +u16 nvmet_zero_sgl(struct nvmet_req *req, off_t off, size_t len); u32 nvmet_get_log_page_len(struct nvme_command *cmd); @@ -338,4 +373,14 @@ extern struct rw_semaphore nvmet_config_sem; bool nvmet_host_allowed(struct nvmet_req *req, struct nvmet_subsys *subsys, const char *hostnqn); +int nvmet_bdev_ns_enable(struct nvmet_ns *ns); +int nvmet_file_ns_enable(struct nvmet_ns *ns); +void nvmet_bdev_ns_disable(struct nvmet_ns *ns); +void nvmet_file_ns_disable(struct nvmet_ns *ns); + +static inline u32 nvmet_rw_len(struct nvmet_req *req) +{ + return ((u32)le16_to_cpu(req->cmd->rw.length) + 1) << + req->ns->blksize_shift; +} #endif /* _NVMET_H */ diff --git a/drivers/of/device.c b/drivers/of/device.c index 064c818105bd..33d85511d790 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -76,6 +76,8 @@ int of_device_add(struct platform_device *ofdev) * of_dma_configure - Setup DMA configuration * @dev: Device to apply DMA configuration * @np: Pointer to OF node having DMA configuration + * @force_dma: Whether device is to be set up by of_dma_configure() even if + * DMA capability is not explicitly described by firmware. * * Try to get devices's DMA configuration from DT and update it * accordingly. @@ -84,7 +86,7 @@ int of_device_add(struct platform_device *ofdev) * can use a platform bus notifier and handle BUS_NOTIFY_ADD_DEVICE events * to fix up DMA configuration. */ -int of_dma_configure(struct device *dev, struct device_node *np) +int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma) { u64 dma_addr, paddr, size = 0; int ret; @@ -100,7 +102,7 @@ int of_dma_configure(struct device *dev, struct device_node *np) * DMA configuration regardless of whether "dma-ranges" is * correctly specified or not. */ - if (!dev->bus->force_dma) + if (!force_dma) return ret == -ENODEV ? 0 : ret; dma_addr = offset = 0; diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 9a4f4246231d..895c83e0c7b6 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -353,7 +353,7 @@ int of_reserved_mem_device_init_by_idx(struct device *dev, /* ensure that dma_ops is set for virtual devices * using reserved memory */ - of_dma_configure(dev, np); + of_dma_configure(dev, np, true); dev_info(dev, "assigned reserved memory node %s\n", rmem->name); } else { diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig index 3a102a84d637..5a48b5606110 100644 --- a/drivers/parisc/Kconfig +++ b/drivers/parisc/Kconfig @@ -103,11 +103,6 @@ config IOMMU_SBA depends on PCI_LBA default PCI_LBA -config IOMMU_HELPER - bool - depends on IOMMU_SBA || IOMMU_CCIO - default y - source "drivers/pcmcia/Kconfig" endmenu diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 297599fcbc32..614823617b8b 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -1108,19 +1108,6 @@ static int ccio_proc_info(struct seq_file *m, void *p) return 0; } -static int ccio_proc_info_open(struct inode *inode, struct file *file) -{ - return single_open(file, &ccio_proc_info, NULL); -} - -static const struct file_operations ccio_proc_info_fops = { - .owner = THIS_MODULE, - .open = ccio_proc_info_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int ccio_proc_bitmap_info(struct seq_file *m, void *p) { struct ioc *ioc = ioc_list; @@ -1135,19 +1122,6 @@ static int ccio_proc_bitmap_info(struct seq_file *m, void *p) return 0; } - -static int ccio_proc_bitmap_open(struct inode *inode, struct file *file) -{ - return single_open(file, &ccio_proc_bitmap_info, NULL); -} - -static const struct file_operations ccio_proc_bitmap_fops = { - .owner = THIS_MODULE, - .open = ccio_proc_bitmap_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* CONFIG_PROC_FS */ /** @@ -1589,15 +1563,13 @@ static int __init ccio_probe(struct parisc_device *dev) #ifdef CONFIG_PROC_FS if (ioc_count == 0) { - proc_create(MODULE_NAME, 0, proc_runway_root, - &ccio_proc_info_fops); - proc_create(MODULE_NAME"-bitmap", 0, proc_runway_root, - &ccio_proc_bitmap_fops); + proc_create_single(MODULE_NAME, 0, proc_runway_root, + ccio_proc_info); + proc_create_single(MODULE_NAME"-bitmap", 0, proc_runway_root, + ccio_proc_bitmap_info); } #endif ioc_count++; - - parisc_has_iommu(); return 0; } diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 0a9c762a70fa..11de0eccf968 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -1864,20 +1864,6 @@ static int sba_proc_info(struct seq_file *m, void *p) } static int -sba_proc_open(struct inode *i, struct file *f) -{ - return single_open(f, &sba_proc_info, NULL); -} - -static const struct file_operations sba_proc_fops = { - .owner = THIS_MODULE, - .open = sba_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int sba_proc_bitmap_info(struct seq_file *m, void *p) { struct sba_device *sba_dev = sba_list; @@ -1889,20 +1875,6 @@ sba_proc_bitmap_info(struct seq_file *m, void *p) return 0; } - -static int -sba_proc_bitmap_open(struct inode *i, struct file *f) -{ - return single_open(f, &sba_proc_bitmap_info, NULL); -} - -static const struct file_operations sba_proc_bitmap_fops = { - .owner = THIS_MODULE, - .open = sba_proc_bitmap_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif /* CONFIG_PROC_FS */ static const struct parisc_device_id sba_tbl[] __initconst = { @@ -2014,11 +1986,9 @@ static int __init sba_driver_callback(struct parisc_device *dev) break; } - proc_create("sba_iommu", 0, root, &sba_proc_fops); - proc_create("sba_iommu-bitmap", 0, root, &sba_proc_bitmap_fops); + proc_create_single("sba_iommu", 0, root, sba_proc_info); + proc_create_single("sba_iommu-bitmap", 0, root, sba_proc_bitmap_info); #endif - - parisc_has_iommu(); return 0; } diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 34b56a8f8480..29a487f31dae 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -5,10 +5,6 @@ source "drivers/pci/pcie/Kconfig" -config PCI_BUS_ADDR_T_64BIT - def_bool y if (ARCH_DMA_ADDR_T_64BIT || 64BIT) - depends on PCI - config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index bc2ded4c451f..35b7fc87eac5 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -120,7 +120,7 @@ int devm_request_pci_bus_resources(struct device *dev, EXPORT_SYMBOL_GPL(devm_request_pci_bus_resources); static struct pci_bus_region pci_32_bit = {0, 0xffffffffULL}; -#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT static struct pci_bus_region pci_64_bit = {0, (pci_bus_addr_t) 0xffffffffffffffffULL}; static struct pci_bus_region pci_high = {(pci_bus_addr_t) 0x100000000ULL, @@ -230,7 +230,7 @@ int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, resource_size_t), void *alignf_data) { -#ifdef CONFIG_PCI_BUS_ADDR_T_64BIT +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT int rc; if (res->flags & IORESOURCE_MEM_64) { diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 30250631efe7..f45b74fcc059 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -1434,6 +1434,9 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode, { struct irq_domain *domain; + if (WARN_ON(info->flags & MSI_FLAG_LEVEL_CAPABLE)) + info->flags &= ~MSI_FLAG_LEVEL_CAPABLE; + if (info->flags & MSI_FLAG_USE_DEF_DOM_OPS) pci_msi_domain_update_dom_ops(info); if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index b9a131137e64..f8269a725667 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -16,6 +16,8 @@ #include <linux/pm_runtime.h> #include <linux/suspend.h> #include <linux/kexec.h> +#include <linux/of_device.h> +#include <linux/acpi.h> #include "pci.h" #include "pcie/portdrv.h" @@ -1577,6 +1579,35 @@ static int pci_bus_num_vf(struct device *dev) return pci_num_vf(to_pci_dev(dev)); } +/** + * pci_dma_configure - Setup DMA configuration + * @dev: ptr to dev structure + * + * Function to update PCI devices's DMA configuration using the same + * info from the OF node or ACPI node of host bridge's parent (if any). + */ +static int pci_dma_configure(struct device *dev) +{ + struct device *bridge; + int ret = 0; + + bridge = pci_get_host_bridge_device(to_pci_dev(dev)); + + if (IS_ENABLED(CONFIG_OF) && bridge->parent && + bridge->parent->of_node) { + ret = of_dma_configure(dev, bridge->parent->of_node, true); + } else if (has_acpi_companion(bridge)) { + struct acpi_device *adev = to_acpi_device_node(bridge->fwnode); + enum dev_dma_attr attr = acpi_get_dma_attr(adev); + + if (attr != DEV_DMA_NOT_SUPPORTED) + ret = acpi_dma_configure(dev, attr); + } + + pci_put_host_bridge_device(bridge); + return ret; +} + struct bus_type pci_bus_type = { .name = "pci", .match = pci_bus_match, @@ -1589,7 +1620,7 @@ struct bus_type pci_bus_type = { .drv_groups = pci_drv_groups, .pm = PCI_PM_OPS_PTR, .num_vf = pci_bus_num_vf, - .force_dma = true, + .dma_configure = pci_dma_configure, }; EXPORT_SYMBOL(pci_bus_type); diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 1ee8927a0635..7ac035af39f0 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -435,25 +435,12 @@ int pci_proc_detach_bus(struct pci_bus *bus) return 0; } -static int proc_bus_pci_dev_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &proc_bus_pci_devices_op); -} - -static const struct file_operations proc_bus_pci_dev_operations = { - .owner = THIS_MODULE, - .open = proc_bus_pci_dev_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - static int __init pci_proc_init(void) { struct pci_dev *dev = NULL; proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); - proc_create("devices", 0, proc_bus_pci_dir, - &proc_bus_pci_dev_operations); + proc_create_seq("devices", 0, proc_bus_pci_dir, + &proc_bus_pci_devices_op); proc_initialized = 1; for_each_pci_dev(dev) pci_proc_attach_device(dev); diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index 6cbcff42ba47..dfed60982a8a 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -267,12 +267,13 @@ static void stm32_gpio_irq_release_resources(struct irq_data *irq_data) } static struct irq_chip stm32_gpio_irq_chip = { - .name = "stm32gpio", - .irq_ack = irq_chip_ack_parent, - .irq_mask = irq_chip_mask_parent, - .irq_unmask = irq_chip_unmask_parent, - .irq_set_type = irq_chip_set_type_parent, - .irq_set_wake = irq_chip_set_wake_parent, + .name = "stm32gpio", + .irq_eoi = irq_chip_eoi_parent, + .irq_ack = irq_chip_ack_parent, + .irq_mask = irq_chip_mask_parent, + .irq_unmask = irq_chip_unmask_parent, + .irq_set_type = irq_chip_set_type_parent, + .irq_set_wake = irq_chip_set_wake_parent, .irq_request_resources = stm32_gpio_irq_request_resources, .irq_release_resources = stm32_gpio_irq_release_resources, }; diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig index e728a96cabfd..cb0df9eb3e0f 100644 --- a/drivers/platform/chrome/Kconfig +++ b/drivers/platform/chrome/Kconfig @@ -38,6 +38,17 @@ config CHROMEOS_PSTORE If you have a supported Chromebook, choose Y or M here. The module will be called chromeos_pstore. +config CHROMEOS_TBMC + tristate "ChromeOS Tablet Switch Controller" + depends on ACPI + depends on INPUT + help + This option adds a driver for the tablet switch on + select Chrome OS systems. + + To compile this driver as a module, choose M here: the + module will be called chromeos_tbmc. + config CROS_EC_CTL tristate diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile index ff3b369911f0..e44c37a63fa9 100644 --- a/drivers/platform/chrome/Makefile +++ b/drivers/platform/chrome/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o +obj-$(CONFIG_CHROMEOS_TBMC) += chromeos_tbmc.o cros_ec_ctl-objs := cros_ec_sysfs.o cros_ec_lightbar.o \ cros_ec_vbc.o cros_ec_debugfs.o obj-$(CONFIG_CROS_EC_CTL) += cros_ec_ctl.o diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c index 5c47f451e43b..24326eecd787 100644 --- a/drivers/platform/chrome/chromeos_laptop.c +++ b/drivers/platform/chrome/chromeos_laptop.c @@ -6,6 +6,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/acpi.h> #include <linux/dmi.h> #include <linux/i2c.h> #include <linux/input.h> @@ -54,6 +55,11 @@ struct i2c_peripheral { struct i2c_client *client; }; +struct acpi_peripheral { + char hid[ACPI_ID_LEN]; + const struct property_entry *properties; +}; + struct chromeos_laptop { /* * Note that we can't mark this pointer as const because @@ -61,6 +67,9 @@ struct chromeos_laptop { */ struct i2c_peripheral *i2c_peripherals; unsigned int num_i2c_peripherals; + + const struct acpi_peripheral *acpi_peripherals; + unsigned int num_acpi_peripherals; }; static const struct chromeos_laptop *cros_laptop; @@ -148,6 +157,38 @@ static void chromeos_laptop_check_adapter(struct i2c_adapter *adapter) } } +static bool chromeos_laptop_adjust_client(struct i2c_client *client) +{ + const struct acpi_peripheral *acpi_dev; + struct acpi_device_id acpi_ids[2] = { }; + int i; + int error; + + if (!has_acpi_companion(&client->dev)) + return false; + + for (i = 0; i < cros_laptop->num_acpi_peripherals; i++) { + acpi_dev = &cros_laptop->acpi_peripherals[i]; + + memcpy(acpi_ids[0].id, acpi_dev->hid, ACPI_ID_LEN); + + if (acpi_match_device(acpi_ids, &client->dev)) { + error = device_add_properties(&client->dev, + acpi_dev->properties); + if (error) { + dev_err(&client->dev, + "failed to add properties: %d\n", + error); + break; + } + + return true; + } + } + + return false; +} + static void chromeos_laptop_detach_i2c_client(struct i2c_client *client) { struct i2c_peripheral *i2c_dev; @@ -170,6 +211,8 @@ static int chromeos_laptop_i2c_notifier_call(struct notifier_block *nb, case BUS_NOTIFY_ADD_DEVICE: if (dev->type == &i2c_adapter_type) chromeos_laptop_check_adapter(to_i2c_adapter(dev)); + else if (dev->type == &i2c_client_type) + chromeos_laptop_adjust_client(to_i2c_client(dev)); break; case BUS_NOTIFY_REMOVED_DEVICE: @@ -191,6 +234,12 @@ static const struct chromeos_laptop _name __initconst = { \ .num_i2c_peripherals = ARRAY_SIZE(_name##_peripherals), \ } +#define DECLARE_ACPI_CROS_LAPTOP(_name) \ +static const struct chromeos_laptop _name __initconst = { \ + .acpi_peripherals = _name##_peripherals, \ + .num_acpi_peripherals = ARRAY_SIZE(_name##_peripherals), \ +} + static struct i2c_peripheral samsung_series_5_550_peripherals[] __initdata = { /* Touchpad. */ { @@ -234,16 +283,25 @@ static const int chromebook_pixel_tp_keys[] __initconst = { static const struct property_entry chromebook_pixel_trackpad_props[] __initconst = { + PROPERTY_ENTRY_STRING("compatible", "atmel,maxtouch"), PROPERTY_ENTRY_U32_ARRAY("linux,gpio-keymap", chromebook_pixel_tp_keys), { } }; +static const struct property_entry +chromebook_atmel_touchscreen_props[] __initconst = { + PROPERTY_ENTRY_STRING("compatible", "atmel,maxtouch"), + { } +}; + static struct i2c_peripheral chromebook_pixel_peripherals[] __initdata = { /* Touch Screen. */ { .board_info = { I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR), + .properties = + chromebook_atmel_touchscreen_props, .flags = I2C_CLIENT_WAKE, }, .dmi_name = "touchscreen", @@ -354,6 +412,8 @@ static struct i2c_peripheral acer_c720_peripherals[] __initdata = { .board_info = { I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR), + .properties = + chromebook_atmel_touchscreen_props, .flags = I2C_CLIENT_WAKE, }, .dmi_name = "touchscreen", @@ -419,6 +479,47 @@ static struct i2c_peripheral cr48_peripherals[] __initdata = { }; DECLARE_CROS_LAPTOP(cr48); +static const u32 samus_touchpad_buttons[] __initconst = { + KEY_RESERVED, + KEY_RESERVED, + KEY_RESERVED, + BTN_LEFT +}; + +static const struct property_entry samus_trackpad_props[] __initconst = { + PROPERTY_ENTRY_STRING("compatible", "atmel,maxtouch"), + PROPERTY_ENTRY_U32_ARRAY("linux,gpio-keymap", samus_touchpad_buttons), + { } +}; + +static struct acpi_peripheral samus_peripherals[] __initdata = { + /* Touchpad */ + { + .hid = "ATML0000", + .properties = samus_trackpad_props, + }, + /* Touchsceen */ + { + .hid = "ATML0001", + .properties = chromebook_atmel_touchscreen_props, + }, +}; +DECLARE_ACPI_CROS_LAPTOP(samus); + +static struct acpi_peripheral generic_atmel_peripherals[] __initdata = { + /* Touchpad */ + { + .hid = "ATML0000", + .properties = chromebook_pixel_trackpad_props, + }, + /* Touchsceen */ + { + .hid = "ATML0001", + .properties = chromebook_atmel_touchscreen_props, + }, +}; +DECLARE_ACPI_CROS_LAPTOP(generic_atmel); + static const struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = { { .ident = "Samsung Series 5 550", @@ -502,17 +603,72 @@ static const struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = { }, .driver_data = (void *)&cr48, }, + /* Devices with peripherals incompletely described in ACPI */ + { + .ident = "Chromebook Pro", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Google"), + DMI_MATCH(DMI_PRODUCT_NAME, "Caroline"), + }, + .driver_data = (void *)&samus, + }, + { + .ident = "Google Pixel 2 (2015)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), + DMI_MATCH(DMI_PRODUCT_NAME, "Samus"), + }, + .driver_data = (void *)&samus, + }, + { + .ident = "Samsung Chromebook 3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), + DMI_MATCH(DMI_PRODUCT_NAME, "Celes"), + }, + .driver_data = (void *)&samus, + }, + { + /* + * Other Chromebooks with Atmel touch controllers: + * - Winky (touchpad) + * - Clapper, Expresso, Rambi, Glimmer (touchscreen) + */ + .ident = "Other Chromebook", + .matches = { + /* + * This will match all Google devices, not only devices + * with Atmel, but we will validate that the device + * actually has matching peripherals. + */ + DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), + }, + .driver_data = (void *)&generic_atmel, + }, { } }; MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table); -static int __init chromeos_laptop_scan_adapter(struct device *dev, void *data) +static int __init chromeos_laptop_scan_peripherals(struct device *dev, void *data) { - struct i2c_adapter *adapter; + int error; - adapter = i2c_verify_adapter(dev); - if (adapter) - chromeos_laptop_check_adapter(adapter); + if (dev->type == &i2c_adapter_type) { + chromeos_laptop_check_adapter(to_i2c_adapter(dev)); + } else if (dev->type == &i2c_client_type) { + if (chromeos_laptop_adjust_client(to_i2c_client(dev))) { + /* + * Now that we have needed properties re-trigger + * driver probe in case driver was initialized + * earlier and probe failed. + */ + error = device_attach(dev); + if (error < 0) + dev_warn(dev, + "%s: device_attach() failed: %d\n", + __func__, error); + } + } return 0; } @@ -556,27 +712,24 @@ static int __init chromeos_laptop_setup_irq(struct i2c_peripheral *i2c_dev) return 0; } -static struct chromeos_laptop * __init -chromeos_laptop_prepare(const struct chromeos_laptop *src) +static int __init +chromeos_laptop_prepare_i2c_peripherals(struct chromeos_laptop *cros_laptop, + const struct chromeos_laptop *src) { - struct chromeos_laptop *cros_laptop; struct i2c_peripheral *i2c_dev; struct i2c_board_info *info; - int error; int i; + int error; - cros_laptop = kzalloc(sizeof(*cros_laptop), GFP_KERNEL); - if (!cros_laptop) - return ERR_PTR(-ENOMEM); + if (!src->num_i2c_peripherals) + return 0; cros_laptop->i2c_peripherals = kmemdup(src->i2c_peripherals, src->num_i2c_peripherals * sizeof(*src->i2c_peripherals), GFP_KERNEL); - if (!cros_laptop->i2c_peripherals) { - error = -ENOMEM; - goto err_free_cros_laptop; - } + if (!cros_laptop->i2c_peripherals) + return -ENOMEM; cros_laptop->num_i2c_peripherals = src->num_i2c_peripherals; @@ -586,7 +739,7 @@ chromeos_laptop_prepare(const struct chromeos_laptop *src) error = chromeos_laptop_setup_irq(i2c_dev); if (error) - goto err_destroy_cros_peripherals; + goto err_out; /* We need to deep-copy properties */ if (info->properties) { @@ -594,14 +747,14 @@ chromeos_laptop_prepare(const struct chromeos_laptop *src) property_entries_dup(info->properties); if (IS_ERR(info->properties)) { error = PTR_ERR(info->properties); - goto err_destroy_cros_peripherals; + goto err_out; } } } - return cros_laptop; + return 0; -err_destroy_cros_peripherals: +err_out: while (--i >= 0) { i2c_dev = &cros_laptop->i2c_peripherals[i]; info = &i2c_dev->board_info; @@ -609,13 +762,74 @@ err_destroy_cros_peripherals: property_entries_free(info->properties); } kfree(cros_laptop->i2c_peripherals); -err_free_cros_laptop: - kfree(cros_laptop); - return ERR_PTR(error); + return error; +} + +static int __init +chromeos_laptop_prepare_acpi_peripherals(struct chromeos_laptop *cros_laptop, + const struct chromeos_laptop *src) +{ + struct acpi_peripheral *acpi_peripherals; + struct acpi_peripheral *acpi_dev; + const struct acpi_peripheral *src_dev; + int n_peripherals = 0; + int i; + int error; + + for (i = 0; i < src->num_acpi_peripherals; i++) { + if (acpi_dev_present(src->acpi_peripherals[i].hid, NULL, -1)) + n_peripherals++; + } + + if (!n_peripherals) + return 0; + + acpi_peripherals = kcalloc(n_peripherals, + sizeof(*src->acpi_peripherals), + GFP_KERNEL); + if (!acpi_peripherals) + return -ENOMEM; + + acpi_dev = acpi_peripherals; + for (i = 0; i < src->num_acpi_peripherals; i++) { + src_dev = &src->acpi_peripherals[i]; + if (!acpi_dev_present(src_dev->hid, NULL, -1)) + continue; + + *acpi_dev = *src_dev; + + /* We need to deep-copy properties */ + if (src_dev->properties) { + acpi_dev->properties = + property_entries_dup(src_dev->properties); + if (IS_ERR(acpi_dev->properties)) { + error = PTR_ERR(acpi_dev->properties); + goto err_out; + } + } + + acpi_dev++; + } + + cros_laptop->acpi_peripherals = acpi_peripherals; + cros_laptop->num_acpi_peripherals = n_peripherals; + + return 0; + +err_out: + while (--i >= 0) { + acpi_dev = &acpi_peripherals[i]; + if (acpi_dev->properties) + property_entries_free(acpi_dev->properties); + } + + kfree(acpi_peripherals); + return error; } static void chromeos_laptop_destroy(const struct chromeos_laptop *cros_laptop) { + const struct acpi_peripheral *acpi_dev; struct i2c_peripheral *i2c_dev; struct i2c_board_info *info; int i; @@ -631,10 +845,41 @@ static void chromeos_laptop_destroy(const struct chromeos_laptop *cros_laptop) property_entries_free(info->properties); } + for (i = 0; i < cros_laptop->num_acpi_peripherals; i++) { + acpi_dev = &cros_laptop->acpi_peripherals[i]; + + if (acpi_dev->properties) + property_entries_free(acpi_dev->properties); + } + kfree(cros_laptop->i2c_peripherals); + kfree(cros_laptop->acpi_peripherals); kfree(cros_laptop); } +static struct chromeos_laptop * __init +chromeos_laptop_prepare(const struct chromeos_laptop *src) +{ + struct chromeos_laptop *cros_laptop; + int error; + + cros_laptop = kzalloc(sizeof(*cros_laptop), GFP_KERNEL); + if (!cros_laptop) + return ERR_PTR(-ENOMEM); + + error = chromeos_laptop_prepare_i2c_peripherals(cros_laptop, src); + if (!error) + error = chromeos_laptop_prepare_acpi_peripherals(cros_laptop, + src); + + if (error) { + chromeos_laptop_destroy(cros_laptop); + return ERR_PTR(error); + } + + return cros_laptop; +} + static int __init chromeos_laptop_init(void) { const struct dmi_system_id *dmi_id; @@ -652,21 +897,33 @@ static int __init chromeos_laptop_init(void) if (IS_ERR(cros_laptop)) return PTR_ERR(cros_laptop); + if (!cros_laptop->num_i2c_peripherals && + !cros_laptop->num_acpi_peripherals) { + pr_debug("no relevant devices detected\n"); + error = -ENODEV; + goto err_destroy_cros_laptop; + } + error = bus_register_notifier(&i2c_bus_type, &chromeos_laptop_i2c_notifier); if (error) { - pr_err("failed to register i2c bus notifier: %d\n", error); - chromeos_laptop_destroy(cros_laptop); - return error; + pr_err("failed to register i2c bus notifier: %d\n", + error); + goto err_destroy_cros_laptop; } /* - * Scan adapters that have been registered before we installed - * the notifier to make sure we do not miss any devices. + * Scan adapters that have been registered and clients that have + * been created before we installed the notifier to make sure + * we do not miss any devices. */ - i2c_for_each_dev(NULL, chromeos_laptop_scan_adapter); + i2c_for_each_dev(NULL, chromeos_laptop_scan_peripherals); return 0; + +err_destroy_cros_laptop: + chromeos_laptop_destroy(cros_laptop); + return error; } static void __exit chromeos_laptop_exit(void) diff --git a/drivers/platform/chrome/chromeos_tbmc.c b/drivers/platform/chrome/chromeos_tbmc.c new file mode 100644 index 000000000000..b935df6a9694 --- /dev/null +++ b/drivers/platform/chrome/chromeos_tbmc.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Driver to detect Tablet Mode for ChromeOS convertible. +// +// Copyright (C) 2017 Google, Inc. +// Author: Gwendal Grignou <gwendal@chromium.org> + +#include <linux/acpi.h> +#include <linux/input.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/printk.h> + +#define DRV_NAME "chromeos_tbmc" +#define ACPI_DRV_NAME "GOOG0006" + +static int chromeos_tbmc_query_switch(struct acpi_device *adev, + struct input_dev *idev) +{ + unsigned long long state; + acpi_status status; + + status = acpi_evaluate_integer(adev->handle, "TBMC", NULL, &state); + if (ACPI_FAILURE(status)) + return -ENODEV; + + /* input layer checks if event is redundant */ + input_report_switch(idev, SW_TABLET_MODE, state); + input_sync(idev); + + return 0; +} + +static __maybe_unused int chromeos_tbmc_resume(struct device *dev) +{ + struct acpi_device *adev = to_acpi_device(dev); + + return chromeos_tbmc_query_switch(adev, adev->driver_data); +} + +static void chromeos_tbmc_notify(struct acpi_device *adev, u32 event) +{ + switch (event) { + case 0x80: + chromeos_tbmc_query_switch(adev, adev->driver_data); + break; + default: + dev_err(&adev->dev, "Unexpected event: 0x%08X\n", event); + } +} + +static int chromeos_tbmc_open(struct input_dev *idev) +{ + struct acpi_device *adev = input_get_drvdata(idev); + + return chromeos_tbmc_query_switch(adev, idev); +} + +static int chromeos_tbmc_add(struct acpi_device *adev) +{ + struct input_dev *idev; + struct device *dev = &adev->dev; + int ret; + + idev = devm_input_allocate_device(dev); + if (!idev) + return -ENOMEM; + + idev->name = "Tablet Mode Switch"; + idev->phys = acpi_device_hid(adev); + + idev->id.bustype = BUS_HOST; + idev->id.version = 1; + idev->id.product = 0; + idev->open = chromeos_tbmc_open; + + input_set_drvdata(idev, adev); + adev->driver_data = idev; + + input_set_capability(idev, EV_SW, SW_TABLET_MODE); + ret = input_register_device(idev); + if (ret) { + dev_err(dev, "cannot register input device\n"); + return ret; + } + return 0; +} + +static const struct acpi_device_id chromeos_tbmc_acpi_device_ids[] = { + { ACPI_DRV_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, chromeos_tbmc_acpi_device_ids); + +static const SIMPLE_DEV_PM_OPS(chromeos_tbmc_pm_ops, NULL, + chromeos_tbmc_resume); + +static struct acpi_driver chromeos_tbmc_driver = { + .name = DRV_NAME, + .class = DRV_NAME, + .ids = chromeos_tbmc_acpi_device_ids, + .ops = { + .add = chromeos_tbmc_add, + .notify = chromeos_tbmc_notify, + }, + .drv.pm = &chromeos_tbmc_pm_ops, +}; + +module_acpi_driver(chromeos_tbmc_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("ChromeOS ACPI tablet switch driver"); diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c index 6ea79d495aa2..68193bb53383 100644 --- a/drivers/platform/chrome/cros_ec_lightbar.c +++ b/drivers/platform/chrome/cros_ec_lightbar.c @@ -170,8 +170,7 @@ static ssize_t version_show(struct device *dev, struct device_attribute *attr, char *buf) { uint32_t version = 0, flags = 0; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); int ret; ret = lb_throttle(); @@ -193,8 +192,7 @@ static ssize_t brightness_store(struct device *dev, struct cros_ec_command *msg; int ret; unsigned int val; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); if (kstrtouint(buf, 0, &val)) return -EINVAL; @@ -238,8 +236,7 @@ static ssize_t led_rgb_store(struct device *dev, struct device_attribute *attr, { struct ec_params_lightbar *param; struct cros_ec_command *msg; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); unsigned int val[4]; int ret, i = 0, j = 0, ok = 0; @@ -311,8 +308,7 @@ static ssize_t sequence_show(struct device *dev, struct ec_response_lightbar *resp; struct cros_ec_command *msg; int ret; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); msg = alloc_lightbar_cmd_msg(ec); if (!msg) @@ -439,8 +435,7 @@ static ssize_t sequence_store(struct device *dev, struct device_attribute *attr, struct cros_ec_command *msg; unsigned int num; int ret, len; - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); for (len = 0; len < count; len++) if (!isalnum(buf[len])) @@ -488,8 +483,7 @@ static ssize_t program_store(struct device *dev, struct device_attribute *attr, int extra_bytes, max_size, ret; struct ec_params_lightbar *param; struct cros_ec_command *msg; - struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, - class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); /* * We might need to reject the program for size reasons. The EC @@ -599,8 +593,7 @@ static umode_t cros_ec_lightbar_attrs_are_visible(struct kobject *kobj, struct attribute *a, int n) { struct device *dev = container_of(kobj, struct device, kobj); - struct cros_ec_dev *ec = container_of(dev, - struct cros_ec_dev, class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); struct platform_device *pdev = to_platform_device(ec->dev); struct cros_ec_platform *pdata = pdev->dev.platform_data; int is_cros_ec; diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c index 3682e1539251..31c8b8c49e45 100644 --- a/drivers/platform/chrome/cros_ec_lpc.c +++ b/drivers/platform/chrome/cros_ec_lpc.c @@ -435,7 +435,13 @@ static int __init cros_ec_lpc_init(void) int ret; acpi_status status; - if (!dmi_check_system(cros_ec_lpc_dmi_table)) { + status = acpi_get_devices(ACPI_DRV_NAME, cros_ec_lpc_parse_device, + &cros_ec_lpc_acpi_device_found, NULL); + if (ACPI_FAILURE(status)) + pr_warn(DRV_NAME ": Looking for %s failed\n", ACPI_DRV_NAME); + + if (!cros_ec_lpc_acpi_device_found && + !dmi_check_system(cros_ec_lpc_dmi_table)) { pr_err(DRV_NAME ": unsupported system.\n"); return -ENODEV; } @@ -450,11 +456,6 @@ static int __init cros_ec_lpc_init(void) return ret; } - status = acpi_get_devices(ACPI_DRV_NAME, cros_ec_lpc_parse_device, - &cros_ec_lpc_acpi_device_found, NULL); - if (ACPI_FAILURE(status)) - pr_warn(DRV_NAME ": Looking for %s failed\n", ACPI_DRV_NAME); - if (!cros_ec_lpc_acpi_device_found) { /* Register the device, and it'll get hooked up automatically */ ret = platform_device_register(&cros_ec_lpc_device); diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c index 5a6db3fe213a..f34a50121064 100644 --- a/drivers/platform/chrome/cros_ec_sysfs.c +++ b/drivers/platform/chrome/cros_ec_sysfs.c @@ -34,8 +34,6 @@ #include <linux/types.h> #include <linux/uaccess.h> -#define to_cros_ec_dev(dev) container_of(dev, struct cros_ec_dev, class_dev) - /* Accessor functions */ static ssize_t reboot_show(struct device *dev, diff --git a/drivers/platform/chrome/cros_ec_vbc.c b/drivers/platform/chrome/cros_ec_vbc.c index 6d38e6b08334..5356f26bc022 100644 --- a/drivers/platform/chrome/cros_ec_vbc.c +++ b/drivers/platform/chrome/cros_ec_vbc.c @@ -29,8 +29,7 @@ static ssize_t vboot_context_read(struct file *filp, struct kobject *kobj, loff_t pos, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); - struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, - class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); struct cros_ec_device *ecdev = ec->ec_dev; struct ec_params_vbnvcontext *params; struct cros_ec_command *msg; @@ -70,8 +69,7 @@ static ssize_t vboot_context_write(struct file *filp, struct kobject *kobj, loff_t pos, size_t count) { struct device *dev = container_of(kobj, struct device, kobj); - struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, - class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); struct cros_ec_device *ecdev = ec->ec_dev; struct ec_params_vbnvcontext *params; struct cros_ec_command *msg; @@ -111,8 +109,7 @@ static umode_t cros_ec_vbc_is_visible(struct kobject *kobj, struct bin_attribute *a, int n) { struct device *dev = container_of(kobj, struct device, kobj); - struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, - class_dev); + struct cros_ec_dev *ec = to_cros_ec_dev(dev); struct device_node *np = ec->ec_dev->dev->of_node; if (IS_ENABLED(CONFIG_OF) && np) { diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index e8d058c5ef21..eef76bfa5d73 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -1689,19 +1689,6 @@ static int version_proc_show(struct seq_file *m, void *v) return 0; } -static int version_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, version_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations version_proc_fops = { - .owner = THIS_MODULE, - .open = version_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* * Proc and module init */ @@ -1722,8 +1709,8 @@ static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) if (dev->hotkey_dev) proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops, dev); - proc_create_data("version", S_IRUGO, toshiba_proc_dir, - &version_proc_fops, dev); + proc_create_single_data("version", S_IRUGO, toshiba_proc_dir, + version_proc_show, dev); } static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c index 7d4aca7948dd..fe1c8f5d9af0 100644 --- a/drivers/pnp/pnpbios/proc.c +++ b/drivers/pnp/pnpbios/proc.c @@ -47,19 +47,6 @@ static int pnpconfig_proc_show(struct seq_file *m, void *v) return 0; } -static int pnpconfig_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pnpconfig_proc_show, NULL); -} - -static const struct file_operations pnpconfig_proc_fops = { - .owner = THIS_MODULE, - .open = pnpconfig_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int escd_info_proc_show(struct seq_file *m, void *v) { struct escd_info_struc escd; @@ -74,19 +61,6 @@ static int escd_info_proc_show(struct seq_file *m, void *v) return 0; } -static int escd_info_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, escd_info_proc_show, NULL); -} - -static const struct file_operations escd_info_proc_fops = { - .owner = THIS_MODULE, - .open = escd_info_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - #define MAX_SANE_ESCD_SIZE (32*1024) static int escd_proc_show(struct seq_file *m, void *v) { @@ -129,19 +103,6 @@ static int escd_proc_show(struct seq_file *m, void *v) return 0; } -static int escd_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, escd_proc_show, NULL); -} - -static const struct file_operations escd_proc_fops = { - .owner = THIS_MODULE, - .open = escd_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pnp_legacyres_proc_show(struct seq_file *m, void *v) { void *buf; @@ -159,19 +120,6 @@ static int pnp_legacyres_proc_show(struct seq_file *m, void *v) return 0; } -static int pnp_legacyres_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pnp_legacyres_proc_show, NULL); -} - -static const struct file_operations pnp_legacyres_proc_fops = { - .owner = THIS_MODULE, - .open = pnp_legacyres_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pnp_devices_proc_show(struct seq_file *m, void *v) { struct pnp_bios_node *node; @@ -202,19 +150,6 @@ static int pnp_devices_proc_show(struct seq_file *m, void *v) return 0; } -static int pnp_devices_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, pnp_devices_proc_show, NULL); -} - -static const struct file_operations pnp_devices_proc_fops = { - .owner = THIS_MODULE, - .open = pnp_devices_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int pnpbios_proc_show(struct seq_file *m, void *v) { void *data = m->private; @@ -318,12 +253,13 @@ int __init pnpbios_proc_init(void) proc_pnp_boot = proc_mkdir("boot", proc_pnp); if (!proc_pnp_boot) return -EIO; - proc_create("devices", 0, proc_pnp, &pnp_devices_proc_fops); - proc_create("configuration_info", 0, proc_pnp, &pnpconfig_proc_fops); - proc_create("escd_info", 0, proc_pnp, &escd_info_proc_fops); - proc_create("escd", S_IRUSR, proc_pnp, &escd_proc_fops); - proc_create("legacy_device_resources", 0, proc_pnp, &pnp_legacyres_proc_fops); - + proc_create_single("devices", 0, proc_pnp, pnp_devices_proc_show); + proc_create_single("configuration_info", 0, proc_pnp, + pnpconfig_proc_show); + proc_create_single("escd_info", 0, proc_pnp, escd_info_proc_show); + proc_create_single("escd", S_IRUSR, proc_pnp, escd_proc_show); + proc_create_single("legacy_device_resources", 0, proc_pnp, + pnp_legacyres_proc_show); return 0; } diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index 31e7e23cc5be..a9dd9218fae2 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -107,40 +107,11 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) return 0; } -static int rtc_proc_open(struct inode *inode, struct file *file) -{ - int ret; - struct rtc_device *rtc = PDE_DATA(inode); - - if (!try_module_get(rtc->owner)) - return -ENODEV; - - ret = single_open(file, rtc_proc_show, rtc); - if (ret) - module_put(rtc->owner); - return ret; -} - -static int rtc_proc_release(struct inode *inode, struct file *file) -{ - int res = single_release(inode, file); - struct rtc_device *rtc = PDE_DATA(inode); - - module_put(rtc->owner); - return res; -} - -static const struct file_operations rtc_proc_fops = { - .open = rtc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = rtc_proc_release, -}; - void rtc_proc_add_device(struct rtc_device *rtc) { if (is_rtc_hctosys(rtc)) - proc_create_data("driver/rtc", 0, NULL, &rtc_proc_fops, rtc); + proc_create_single_data("driver/rtc", 0, NULL, rtc_proc_show, + rtc); } void rtc_proc_del_device(struct rtc_device *rtc) diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 02c03e418c27..cb9b685118da 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -3054,7 +3054,7 @@ out: * * Return values: * BLK_EH_RESET_TIMER if the request should be left running - * BLK_EH_NOT_HANDLED if the request is handled or terminated + * BLK_EH_DONE if the request is handled or terminated * by the driver. */ enum blk_eh_timer_return dasd_times_out(struct request *req, bool reserved) @@ -3067,7 +3067,7 @@ enum blk_eh_timer_return dasd_times_out(struct request *req, bool reserved) cqr = *((struct dasd_ccw_req **) blk_mq_rq_to_pdu(req)); if (!cqr) - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; spin_lock_irqsave(&cqr->dq->lock, flags); device = cqr->startdev ? cqr->startdev : block->base; @@ -3126,7 +3126,7 @@ enum blk_eh_timer_return dasd_times_out(struct request *req, bool reserved) spin_unlock(&block->queue_lock); spin_unlock_irqrestore(&cqr->dq->lock, flags); - return rc ? BLK_EH_RESET_TIMER : BLK_EH_NOT_HANDLED; + return rc ? BLK_EH_RESET_TIMER : BLK_EH_DONE; } static int dasd_init_hctx(struct blk_mq_hw_ctx *hctx, void *data, diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 7bdc6aaa0ba3..2016e0ed5865 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -18,7 +18,6 @@ #include <linux/fs.h> #include <linux/blkpg.h> #include <linux/slab.h> -#include <asm/compat.h> #include <asm/ccwdev.h> #include <asm/schid.h> #include <asm/cmb.h> diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c index c33788a829c3..5cb80c645489 100644 --- a/drivers/s390/block/dasd_proc.c +++ b/drivers/s390/block/dasd_proc.c @@ -131,19 +131,6 @@ static const struct seq_operations dasd_devices_seq_ops = { .show = dasd_devices_show, }; -static int dasd_devices_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &dasd_devices_seq_ops); -} - -static const struct file_operations dasd_devices_file_ops = { - .owner = THIS_MODULE, - .open = dasd_devices_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - #ifdef CONFIG_DASD_PROFILE static int dasd_stats_all_block_on(void) { @@ -352,10 +339,10 @@ dasd_proc_init(void) dasd_proc_root_entry = proc_mkdir("dasd", NULL); if (!dasd_proc_root_entry) goto out_nodasd; - dasd_devices_entry = proc_create("devices", + dasd_devices_entry = proc_create_seq("devices", S_IFREG | S_IRUGO | S_IWUSR, dasd_proc_root_entry, - &dasd_devices_file_ops); + &dasd_devices_seq_ops); if (!dasd_devices_entry) goto out_nodevices; dasd_statistics_entry = proc_create("statistics", diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 61822480a2a0..16a4e8528bbc 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -19,7 +19,6 @@ #include <linux/slab.h> #include <linux/types.h> -#include <asm/compat.h> #include <asm/ccwdev.h> #include <asm/cio.h> #include <asm/ebcdic.h> diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c index a78cea0c3a09..248b5db3eaa8 100644 --- a/drivers/s390/char/sclp_ctl.c +++ b/drivers/s390/char/sclp_ctl.c @@ -14,7 +14,6 @@ #include <linux/init.h> #include <linux/ioctl.h> #include <linux/fs.h> -#include <asm/compat.h> #include <asm/sclp_ctl.h> #include <asm/sclp.h> diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c index faae30476f4b..32a14ee31c6b 100644 --- a/drivers/s390/char/tape_proc.c +++ b/drivers/s390/char/tape_proc.c @@ -105,29 +105,14 @@ static const struct seq_operations tape_proc_seq = { .show = tape_proc_show, }; -static int tape_proc_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &tape_proc_seq); -} - -static const struct file_operations tape_proc_ops = -{ - .owner = THIS_MODULE, - .open = tape_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - /* * Initialize procfs stuff on startup */ void tape_proc_init(void) { - tape_proc_devices = - proc_create("tapedevices", S_IFREG | S_IRUGO | S_IWUSR, NULL, - &tape_proc_ops); + tape_proc_devices = proc_create_seq("tapedevices", + S_IFREG | S_IRUGO | S_IWUSR, NULL, &tape_proc_seq); if (tape_proc_devices == NULL) { return; } diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 17e411c57576..948ce82a7725 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -23,7 +23,6 @@ #include <linux/mutex.h> #include <linux/cma.h> #include <linux/mm.h> -#include <asm/compat.h> #include <asm/cpcmd.h> #include <asm/debug.h> #include <asm/vmcp.h> diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 0015729d917d..8d9f36625ba5 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -16,7 +16,6 @@ #include <linux/miscdevice.h> #include <linux/kernel_stat.h> -#include <asm/compat.h> #include <asm/cio.h> #include <asm/chsc.h> #include <asm/isc.h> diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index dffd820731f2..f5a0d894d9ad 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -10,6 +10,7 @@ #define KMSG_COMPONENT "qeth" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/compat.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/string.h> @@ -32,7 +33,6 @@ #include <asm/chpid.h> #include <asm/io.h> #include <asm/sysinfo.h> -#include <asm/compat.h> #include <asm/diag.h> #include <asm/cio.h> #include <asm/ccwdev.h> diff --git a/drivers/sbus/char/Kconfig b/drivers/sbus/char/Kconfig index bf3c5f735614..89edd13fd572 100644 --- a/drivers/sbus/char/Kconfig +++ b/drivers/sbus/char/Kconfig @@ -28,13 +28,6 @@ config TADPOLE_TS102_UCTRL events, and can also notice the attachment/detachment of external monitors and mice. -config SUN_JSFLASH - tristate "JavaStation OS Flash SIMM" - depends on SPARC32 - help - If you say Y here, you will be able to boot from your JavaStation's - Flash memory. - config BBC_I2C tristate "UltraSPARC-III bootbus i2c controller driver" depends on PCI && SPARC64 diff --git a/drivers/sbus/char/Makefile b/drivers/sbus/char/Makefile index 8c48ed96683f..44347c918f6b 100644 --- a/drivers/sbus/char/Makefile +++ b/drivers/sbus/char/Makefile @@ -15,6 +15,5 @@ obj-$(CONFIG_DISPLAY7SEG) += display7seg.o obj-$(CONFIG_OBP_FLASH) += flash.o obj-$(CONFIG_SUN_OPENPROMIO) += openprom.o obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o -obj-$(CONFIG_SUN_JSFLASH) += jsflash.o obj-$(CONFIG_BBC_I2C) += bbc.o obj-$(CONFIG_ORACLE_DAX) += oradax.o diff --git a/drivers/sbus/char/jsflash.c b/drivers/sbus/char/jsflash.c deleted file mode 100644 index 14f377ac1280..000000000000 --- a/drivers/sbus/char/jsflash.c +++ /dev/null @@ -1,658 +0,0 @@ -/* - * drivers/sbus/char/jsflash.c - * - * Copyright (C) 1991, 1992 Linus Torvalds (drivers/char/mem.c) - * Copyright (C) 1997 Eddie C. Dost (drivers/sbus/char/flash.c) - * Copyright (C) 1997-2000 Pavel Machek <pavel@ucw.cz> (drivers/block/nbd.c) - * Copyright (C) 1999-2000 Pete Zaitcev - * - * This driver is used to program OS into a Flash SIMM on - * Krups and Espresso platforms. - * - * TODO: do not allow erase/programming if file systems are mounted. - * TODO: Erase/program both banks of a 8MB SIMM. - * - * It is anticipated that programming an OS Flash will be a routine - * procedure. In the same time it is exceedingly dangerous because - * a user can program its OBP flash with OS image and effectively - * kill the machine. - * - * This driver uses an interface different from Eddie's flash.c - * as a silly safeguard. - * - * XXX The flash.c manipulates page caching characteristics in a certain - * dubious way; also it assumes that remap_pfn_range() can remap - * PCI bus locations, which may be false. ioremap() must be used - * instead. We should discuss this. - */ - -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/miscdevice.h> -#include <linux/fcntl.h> -#include <linux/poll.h> -#include <linux/init.h> -#include <linux/string.h> -#include <linux/genhd.h> -#include <linux/blkdev.h> -#include <linux/uaccess.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/pcic.h> -#include <asm/oplib.h> - -#include <asm/jsflash.h> /* ioctl arguments. <linux/> ?? */ -#define JSFIDSZ (sizeof(struct jsflash_ident_arg)) -#define JSFPRGSZ (sizeof(struct jsflash_program_arg)) - -/* - * Our device numbers have no business in system headers. - * The only thing a user knows is the device name /dev/jsflash. - * - * Block devices are laid out like this: - * minor+0 - Bootstrap, for 8MB SIMM 0x20400000[0x800000] - * minor+1 - Filesystem to mount, normally 0x20400400[0x7ffc00] - * minor+2 - Whole flash area for any case... 0x20000000[0x01000000] - * Total 3 minors per flash device. - * - * It is easier to have static size vectors, so we define - * a total minor range JSF_MAX, which must cover all minors. - */ -/* character device */ -#define JSF_MINOR 178 /* 178 is registered with hpa */ -/* block device */ -#define JSF_MAX 3 /* 3 minors wasted total so far. */ -#define JSF_NPART 3 /* 3 minors per flash device */ -#define JSF_PART_BITS 2 /* 2 bits of minors to cover JSF_NPART */ -#define JSF_PART_MASK 0x3 /* 2 bits mask */ - -static DEFINE_MUTEX(jsf_mutex); - -/* - * Access functions. - * We could ioremap(), but it's easier this way. - */ -static unsigned int jsf_inl(unsigned long addr) -{ - unsigned long retval; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (retval) : - "r" (addr), "i" (ASI_M_BYPASS)); - return retval; -} - -static void jsf_outl(unsigned long addr, __u32 data) -{ - - __asm__ __volatile__("sta %0, [%1] %2\n\t" : : - "r" (data), "r" (addr), "i" (ASI_M_BYPASS) : - "memory"); -} - -/* - * soft carrier - */ - -struct jsfd_part { - unsigned long dbase; - unsigned long dsize; -}; - -struct jsflash { - unsigned long base; - unsigned long size; - unsigned long busy; /* In use? */ - struct jsflash_ident_arg id; - /* int mbase; */ /* Minor base, typically zero */ - struct jsfd_part dv[JSF_NPART]; -}; - -/* - * We do not map normal memory or obio as a safety precaution. - * But offsets are real, for ease of userland programming. - */ -#define JSF_BASE_TOP 0x30000000 -#define JSF_BASE_ALL 0x20000000 - -#define JSF_BASE_JK 0x20400000 - -/* - */ -static struct gendisk *jsfd_disk[JSF_MAX]; - -/* - * Let's pretend we may have several of these... - */ -static struct jsflash jsf0; - -/* - * Wait for AMD to finish its embedded algorithm. - * We use the Toggle bit DQ6 (0x40) because it does not - * depend on the data value as /DATA bit DQ7 does. - * - * XXX Do we need any timeout here? So far it never hanged, beware broken hw. - */ -static void jsf_wait(unsigned long p) { - unsigned int x1, x2; - - for (;;) { - x1 = jsf_inl(p); - x2 = jsf_inl(p); - if ((x1 & 0x40404040) == (x2 & 0x40404040)) return; - } -} - -/* - * Programming will only work if Flash is clean, - * we leave it to the programmer application. - * - * AMD must be programmed one byte at a time; - * thus, Simple Tech SIMM must be written 4 bytes at a time. - * - * Write waits for the chip to become ready after the write - * was finished. This is done so that application would read - * consistent data after the write is done. - */ -static void jsf_write4(unsigned long fa, u32 data) { - - jsf_outl(fa, 0xAAAAAAAA); /* Unlock 1 Write 1 */ - jsf_outl(fa, 0x55555555); /* Unlock 1 Write 2 */ - jsf_outl(fa, 0xA0A0A0A0); /* Byte Program */ - jsf_outl(fa, data); - - jsf_wait(fa); -} - -/* - */ -static void jsfd_read(char *buf, unsigned long p, size_t togo) { - union byte4 { - char s[4]; - unsigned int n; - } b; - - while (togo >= 4) { - togo -= 4; - b.n = jsf_inl(p); - memcpy(buf, b.s, 4); - p += 4; - buf += 4; - } -} - -static int jsfd_queue; - -static struct request *jsfd_next_request(void) -{ - struct request_queue *q; - struct request *rq; - int old_pos = jsfd_queue; - - do { - q = jsfd_disk[jsfd_queue]->queue; - if (++jsfd_queue == JSF_MAX) - jsfd_queue = 0; - if (q) { - rq = blk_fetch_request(q); - if (rq) - return rq; - } - } while (jsfd_queue != old_pos); - - return NULL; -} - -static void jsfd_request(void) -{ - struct request *req; - - req = jsfd_next_request(); - while (req) { - struct jsfd_part *jdp = req->rq_disk->private_data; - unsigned long offset = blk_rq_pos(req) << 9; - size_t len = blk_rq_cur_bytes(req); - blk_status_t err = BLK_STS_IOERR; - - if ((offset + len) > jdp->dsize) - goto end; - - if (rq_data_dir(req) != READ) { - printk(KERN_ERR "jsfd: write\n"); - goto end; - } - - if ((jdp->dbase & 0xff000000) != 0x20000000) { - printk(KERN_ERR "jsfd: bad base %x\n", (int)jdp->dbase); - goto end; - } - - jsfd_read(bio_data(req->bio), jdp->dbase + offset, len); - err = BLK_STS_OK; - end: - if (!__blk_end_request_cur(req, err)) - req = jsfd_next_request(); - } -} - -static void jsfd_do_request(struct request_queue *q) -{ - jsfd_request(); -} - -/* - * The memory devices use the full 32/64 bits of the offset, and so we cannot - * check against negative addresses: they are ok. The return value is weird, - * though, in that case (0). - * - * also note that seeking relative to the "end of file" isn't supported: - * it has no meaning, so it returns -EINVAL. - */ -static loff_t jsf_lseek(struct file * file, loff_t offset, int orig) -{ - loff_t ret; - - mutex_lock(&jsf_mutex); - switch (orig) { - case 0: - file->f_pos = offset; - ret = file->f_pos; - break; - case 1: - file->f_pos += offset; - ret = file->f_pos; - break; - default: - ret = -EINVAL; - } - mutex_unlock(&jsf_mutex); - return ret; -} - -/* - * OS SIMM Cannot be read in other size but a 32bits word. - */ -static ssize_t jsf_read(struct file * file, char __user * buf, - size_t togo, loff_t *ppos) -{ - unsigned long p = *ppos; - char __user *tmp = buf; - - union byte4 { - char s[4]; - unsigned int n; - } b; - - if (p < JSF_BASE_ALL || p >= JSF_BASE_TOP) { - return 0; - } - - if ((p + togo) < p /* wrap */ - || (p + togo) >= JSF_BASE_TOP) { - togo = JSF_BASE_TOP - p; - } - - if (p < JSF_BASE_ALL && togo != 0) { -#if 0 /* __bzero XXX */ - size_t x = JSF_BASE_ALL - p; - if (x > togo) x = togo; - clear_user(tmp, x); - tmp += x; - p += x; - togo -= x; -#else - /* - * Implementation of clear_user() calls __bzero - * without regard to modversions, - * so we cannot build a module. - */ - return 0; -#endif - } - - while (togo >= 4) { - togo -= 4; - b.n = jsf_inl(p); - if (copy_to_user(tmp, b.s, 4)) - return -EFAULT; - tmp += 4; - p += 4; - } - - /* - * XXX Small togo may remain if 1 byte is ordered. - * It would be nice if we did a word size read and unpacked it. - */ - - *ppos = p; - return tmp-buf; -} - -static ssize_t jsf_write(struct file * file, const char __user * buf, - size_t count, loff_t *ppos) -{ - return -ENOSPC; -} - -/* - */ -static int jsf_ioctl_erase(unsigned long arg) -{ - unsigned long p; - - /* p = jsf0.base; hits wrong bank */ - p = 0x20400000; - - jsf_outl(p, 0xAAAAAAAA); /* Unlock 1 Write 1 */ - jsf_outl(p, 0x55555555); /* Unlock 1 Write 2 */ - jsf_outl(p, 0x80808080); /* Erase setup */ - jsf_outl(p, 0xAAAAAAAA); /* Unlock 2 Write 1 */ - jsf_outl(p, 0x55555555); /* Unlock 2 Write 2 */ - jsf_outl(p, 0x10101010); /* Chip erase */ - -#if 0 - /* - * This code is ok, except that counter based timeout - * has no place in this world. Let's just drop timeouts... - */ - { - int i; - __u32 x; - for (i = 0; i < 1000000; i++) { - x = jsf_inl(p); - if ((x & 0x80808080) == 0x80808080) break; - } - if ((x & 0x80808080) != 0x80808080) { - printk("jsf0: erase timeout with 0x%08x\n", x); - } else { - printk("jsf0: erase done with 0x%08x\n", x); - } - } -#else - jsf_wait(p); -#endif - - return 0; -} - -/* - * Program a block of flash. - * Very simple because we can do it byte by byte anyway. - */ -static int jsf_ioctl_program(void __user *arg) -{ - struct jsflash_program_arg abuf; - char __user *uptr; - unsigned long p; - unsigned int togo; - union { - unsigned int n; - char s[4]; - } b; - - if (copy_from_user(&abuf, arg, JSFPRGSZ)) - return -EFAULT; - p = abuf.off; - togo = abuf.size; - if ((togo & 3) || (p & 3)) return -EINVAL; - - uptr = (char __user *) (unsigned long) abuf.data; - while (togo != 0) { - togo -= 4; - if (copy_from_user(&b.s[0], uptr, 4)) - return -EFAULT; - jsf_write4(p, b.n); - p += 4; - uptr += 4; - } - - return 0; -} - -static long jsf_ioctl(struct file *f, unsigned int cmd, unsigned long arg) -{ - mutex_lock(&jsf_mutex); - int error = -ENOTTY; - void __user *argp = (void __user *)arg; - - if (!capable(CAP_SYS_ADMIN)) { - mutex_unlock(&jsf_mutex); - return -EPERM; - } - switch (cmd) { - case JSFLASH_IDENT: - if (copy_to_user(argp, &jsf0.id, JSFIDSZ)) { - mutex_unlock(&jsf_mutex); - return -EFAULT; - } - break; - case JSFLASH_ERASE: - error = jsf_ioctl_erase(arg); - break; - case JSFLASH_PROGRAM: - error = jsf_ioctl_program(argp); - break; - } - - mutex_unlock(&jsf_mutex); - return error; -} - -static int jsf_mmap(struct file * file, struct vm_area_struct * vma) -{ - return -ENXIO; -} - -static int jsf_open(struct inode * inode, struct file * filp) -{ - mutex_lock(&jsf_mutex); - if (jsf0.base == 0) { - mutex_unlock(&jsf_mutex); - return -ENXIO; - } - if (test_and_set_bit(0, (void *)&jsf0.busy) != 0) { - mutex_unlock(&jsf_mutex); - return -EBUSY; - } - - mutex_unlock(&jsf_mutex); - return 0; /* XXX What security? */ -} - -static int jsf_release(struct inode *inode, struct file *file) -{ - jsf0.busy = 0; - return 0; -} - -static const struct file_operations jsf_fops = { - .owner = THIS_MODULE, - .llseek = jsf_lseek, - .read = jsf_read, - .write = jsf_write, - .unlocked_ioctl = jsf_ioctl, - .mmap = jsf_mmap, - .open = jsf_open, - .release = jsf_release, -}; - -static struct miscdevice jsf_dev = { JSF_MINOR, "jsflash", &jsf_fops }; - -static const struct block_device_operations jsfd_fops = { - .owner = THIS_MODULE, -}; - -static int jsflash_init(void) -{ - int rc; - struct jsflash *jsf; - phandle node; - char banner[128]; - struct linux_prom_registers reg0; - - node = prom_getchild(prom_root_node); - node = prom_searchsiblings(node, "flash-memory"); - if (node != 0 && (s32)node != -1) { - if (prom_getproperty(node, "reg", - (char *)®0, sizeof(reg0)) == -1) { - printk("jsflash: no \"reg\" property\n"); - return -ENXIO; - } - if (reg0.which_io != 0) { - printk("jsflash: bus number nonzero: 0x%x:%x\n", - reg0.which_io, reg0.phys_addr); - return -ENXIO; - } - /* - * Flash may be somewhere else, for instance on Ebus. - * So, don't do the following check for IIep flash space. - */ -#if 0 - if ((reg0.phys_addr >> 24) != 0x20) { - printk("jsflash: suspicious address: 0x%x:%x\n", - reg0.which_io, reg0.phys_addr); - return -ENXIO; - } -#endif - if ((int)reg0.reg_size <= 0) { - printk("jsflash: bad size 0x%x\n", (int)reg0.reg_size); - return -ENXIO; - } - } else { - /* XXX Remove this code once PROLL ID12 got widespread */ - printk("jsflash: no /flash-memory node, use PROLL >= 12\n"); - prom_getproperty(prom_root_node, "banner-name", banner, 128); - if (strcmp (banner, "JavaStation-NC") != 0 && - strcmp (banner, "JavaStation-E") != 0) { - return -ENXIO; - } - reg0.which_io = 0; - reg0.phys_addr = 0x20400000; - reg0.reg_size = 0x00800000; - } - - /* Let us be really paranoid for modifications to probing code. */ - if (sparc_cpu_model != sun4m) { - /* We must be on sun4m because we use MMU Bypass ASI. */ - return -ENXIO; - } - - if (jsf0.base == 0) { - jsf = &jsf0; - - jsf->base = reg0.phys_addr; - jsf->size = reg0.reg_size; - - /* XXX Redo the userland interface. */ - jsf->id.off = JSF_BASE_ALL; - jsf->id.size = 0x01000000; /* 16M - all segments */ - strcpy(jsf->id.name, "Krups_all"); - - jsf->dv[0].dbase = jsf->base; - jsf->dv[0].dsize = jsf->size; - jsf->dv[1].dbase = jsf->base + 1024; - jsf->dv[1].dsize = jsf->size - 1024; - jsf->dv[2].dbase = JSF_BASE_ALL; - jsf->dv[2].dsize = 0x01000000; - - printk("Espresso Flash @0x%lx [%d MB]\n", jsf->base, - (int) (jsf->size / (1024*1024))); - } - - if ((rc = misc_register(&jsf_dev)) != 0) { - printk(KERN_ERR "jsf: unable to get misc minor %d\n", - JSF_MINOR); - jsf0.base = 0; - return rc; - } - - return 0; -} - -static int jsfd_init(void) -{ - static DEFINE_SPINLOCK(lock); - struct jsflash *jsf; - struct jsfd_part *jdp; - int err; - int i; - - if (jsf0.base == 0) - return -ENXIO; - - err = -ENOMEM; - for (i = 0; i < JSF_MAX; i++) { - struct gendisk *disk = alloc_disk(1); - if (!disk) - goto out; - disk->queue = blk_init_queue(jsfd_do_request, &lock); - if (!disk->queue) { - put_disk(disk); - goto out; - } - blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_HIGH); - jsfd_disk[i] = disk; - } - - if (register_blkdev(JSFD_MAJOR, "jsfd")) { - err = -EIO; - goto out; - } - - for (i = 0; i < JSF_MAX; i++) { - struct gendisk *disk = jsfd_disk[i]; - if ((i & JSF_PART_MASK) >= JSF_NPART) continue; - jsf = &jsf0; /* actually, &jsfv[i >> JSF_PART_BITS] */ - jdp = &jsf->dv[i&JSF_PART_MASK]; - - disk->major = JSFD_MAJOR; - disk->first_minor = i; - sprintf(disk->disk_name, "jsfd%d", i); - disk->fops = &jsfd_fops; - set_capacity(disk, jdp->dsize >> 9); - disk->private_data = jdp; - add_disk(disk); - set_disk_ro(disk, 1); - } - return 0; -out: - while (i--) - put_disk(jsfd_disk[i]); - return err; -} - -MODULE_LICENSE("GPL"); - -static int __init jsflash_init_module(void) { - int rc; - - if ((rc = jsflash_init()) == 0) { - jsfd_init(); - return 0; - } - return rc; -} - -static void __exit jsflash_cleanup_module(void) -{ - int i; - - for (i = 0; i < JSF_MAX; i++) { - if ((i & JSF_PART_MASK) >= JSF_NPART) continue; - del_gendisk(jsfd_disk[i]); - blk_cleanup_queue(jsfd_disk[i]->queue); - put_disk(jsfd_disk[i]); - } - if (jsf0.busy) - printk("jsf0: cleaning busy unit\n"); - jsf0.base = 0; - jsf0.busy = 0; - - misc_deregister(&jsf_dev); - unregister_blkdev(JSFD_MAJOR, "jsfd"); -} - -module_init(jsflash_init_module); -module_exit(jsflash_cleanup_module); diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index c35f05c4c6bb..85604795d8ee 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -3882,7 +3882,7 @@ static enum blk_eh_timer_return gdth_timed_out(struct scsi_cmnd *scp) struct gdth_cmndinfo *cmndinfo = gdth_cmnd_priv(scp); u8 b, t; unsigned long flags; - enum blk_eh_timer_return retval = BLK_EH_NOT_HANDLED; + enum blk_eh_timer_return retval = BLK_EH_DONE; TRACE(("%s() cmd 0x%x\n", scp->cmnd[0], __func__)); b = scp->device->channel; diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 15a2fef51e38..71bdc0b52cf9 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1963,7 +1963,7 @@ static int iscsi_has_ping_timed_out(struct iscsi_conn *conn) enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc) { - enum blk_eh_timer_return rc = BLK_EH_NOT_HANDLED; + enum blk_eh_timer_return rc = BLK_EH_DONE; struct iscsi_task *task = NULL, *running_task; struct iscsi_cls_session *cls_session; struct iscsi_session *session; @@ -1982,7 +1982,7 @@ enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc) * Raced with completion. Blk layer has taken ownership * so let timeout code complete it now. */ - rc = BLK_EH_HANDLED; + rc = BLK_EH_DONE; goto done; } @@ -1997,7 +1997,7 @@ enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc) if (unlikely(system_state != SYSTEM_RUNNING)) { sc->result = DID_NO_CONNECT << 16; ISCSI_DBG_EH(session, "sc on shutdown, handled\n"); - rc = BLK_EH_HANDLED; + rc = BLK_EH_DONE; goto done; } /* diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 7195cff51d4c..91f5e2c68dbc 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -2731,53 +2731,6 @@ proc_show_rdrv_40(struct seq_file *m, void *v) return proc_show_rdrv(m, m->private, 30, 39); } - -/* - * seq_file wrappers for procfile show routines. - */ -static int mega_proc_open(struct inode *inode, struct file *file) -{ - adapter_t *adapter = proc_get_parent_data(inode); - int (*show)(struct seq_file *, void *) = PDE_DATA(inode); - - return single_open(file, show, adapter); -} - -static const struct file_operations mega_proc_fops = { - .open = mega_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -/* - * Table of proc files we need to create. - */ -struct mega_proc_file { - const char *name; - unsigned short ptr_offset; - int (*show) (struct seq_file *m, void *v); -}; - -static const struct mega_proc_file mega_proc_files[] = { - { "config", offsetof(adapter_t, proc_read), proc_show_config }, - { "stat", offsetof(adapter_t, proc_stat), proc_show_stat }, - { "mailbox", offsetof(adapter_t, proc_mbox), proc_show_mbox }, -#if MEGA_HAVE_ENH_PROC - { "rebuild-rate", offsetof(adapter_t, proc_rr), proc_show_rebuild_rate }, - { "battery-status", offsetof(adapter_t, proc_battery), proc_show_battery }, - { "diskdrives-ch0", offsetof(adapter_t, proc_pdrvstat[0]), proc_show_pdrv_ch0 }, - { "diskdrives-ch1", offsetof(adapter_t, proc_pdrvstat[1]), proc_show_pdrv_ch1 }, - { "diskdrives-ch2", offsetof(adapter_t, proc_pdrvstat[2]), proc_show_pdrv_ch2 }, - { "diskdrives-ch3", offsetof(adapter_t, proc_pdrvstat[3]), proc_show_pdrv_ch3 }, - { "raiddrives-0-9", offsetof(adapter_t, proc_rdrvstat[0]), proc_show_rdrv_10 }, - { "raiddrives-10-19", offsetof(adapter_t, proc_rdrvstat[1]), proc_show_rdrv_20 }, - { "raiddrives-20-29", offsetof(adapter_t, proc_rdrvstat[2]), proc_show_rdrv_30 }, - { "raiddrives-30-39", offsetof(adapter_t, proc_rdrvstat[3]), proc_show_rdrv_40 }, -#endif - { NULL } -}; - /** * mega_create_proc_entry() * @index - index in soft state array @@ -2788,31 +2741,45 @@ static const struct mega_proc_file mega_proc_files[] = { static void mega_create_proc_entry(int index, struct proc_dir_entry *parent) { - const struct mega_proc_file *f; - adapter_t *adapter = hba_soft_state[index]; - struct proc_dir_entry *dir, *de, **ppde; - u8 string[16]; + adapter_t *adapter = hba_soft_state[index]; + struct proc_dir_entry *dir; + u8 string[16]; sprintf(string, "hba%d", adapter->host->host_no); - - dir = adapter->controller_proc_dir_entry = - proc_mkdir_data(string, 0, parent, adapter); - if(!dir) { + dir = proc_mkdir_data(string, 0, parent, adapter); + if (!dir) { dev_warn(&adapter->dev->dev, "proc_mkdir failed\n"); return; } - for (f = mega_proc_files; f->name; f++) { - de = proc_create_data(f->name, S_IRUSR, dir, &mega_proc_fops, - f->show); - if (!de) { - dev_warn(&adapter->dev->dev, "proc_create failed\n"); - return; - } - - ppde = (void *)adapter + f->ptr_offset; - *ppde = de; - } + proc_create_single_data("config", S_IRUSR, dir, + proc_show_config, adapter); + proc_create_single_data("stat", S_IRUSR, dir, + proc_show_stat, adapter); + proc_create_single_data("mailbox", S_IRUSR, dir, + proc_show_mbox, adapter); +#if MEGA_HAVE_ENH_PROC + proc_create_single_data("rebuild-rate", S_IRUSR, dir, + proc_show_rebuild_rate, adapter); + proc_create_single_data("battery-status", S_IRUSR, dir, + proc_show_battery, adapter); + proc_create_single_data("diskdrives-ch0", S_IRUSR, dir, + proc_show_pdrv_ch0, adapter); + proc_create_single_data("diskdrives-ch1", S_IRUSR, dir, + proc_show_pdrv_ch1, adapter); + proc_create_single_data("diskdrives-ch2", S_IRUSR, dir, + proc_show_pdrv_ch2, adapter); + proc_create_single_data("diskdrives-ch3", S_IRUSR, dir, + proc_show_pdrv_ch3, adapter); + proc_create_single_data("raiddrives-0-9", S_IRUSR, dir, + proc_show_rdrv_10, adapter); + proc_create_single_data("raiddrives-10-19", S_IRUSR, dir, + proc_show_rdrv_20, adapter); + proc_create_single_data("raiddrives-20-29", S_IRUSR, dir, + proc_show_rdrv_30, adapter); + proc_create_single_data("raiddrives-30-39", S_IRUSR, dir, + proc_show_rdrv_40, adapter); +#endif } #else @@ -4580,6 +4547,7 @@ megaraid_remove_one(struct pci_dev *pdev) { struct Scsi_Host *host = pci_get_drvdata(pdev); adapter_t *adapter = (adapter_t *)host->hostdata; + char buf[12] = { 0 }; scsi_remove_host(host); @@ -4594,44 +4562,8 @@ megaraid_remove_one(struct pci_dev *pdev) mega_free_sgl(adapter); -#ifdef CONFIG_PROC_FS - if (adapter->controller_proc_dir_entry) { - remove_proc_entry("stat", adapter->controller_proc_dir_entry); - remove_proc_entry("config", - adapter->controller_proc_dir_entry); - remove_proc_entry("mailbox", - adapter->controller_proc_dir_entry); -#if MEGA_HAVE_ENH_PROC - remove_proc_entry("rebuild-rate", - adapter->controller_proc_dir_entry); - remove_proc_entry("battery-status", - adapter->controller_proc_dir_entry); - - remove_proc_entry("diskdrives-ch0", - adapter->controller_proc_dir_entry); - remove_proc_entry("diskdrives-ch1", - adapter->controller_proc_dir_entry); - remove_proc_entry("diskdrives-ch2", - adapter->controller_proc_dir_entry); - remove_proc_entry("diskdrives-ch3", - adapter->controller_proc_dir_entry); - - remove_proc_entry("raiddrives-0-9", - adapter->controller_proc_dir_entry); - remove_proc_entry("raiddrives-10-19", - adapter->controller_proc_dir_entry); - remove_proc_entry("raiddrives-20-29", - adapter->controller_proc_dir_entry); - remove_proc_entry("raiddrives-30-39", - adapter->controller_proc_dir_entry); -#endif - { - char buf[12] = { 0 }; - sprintf(buf, "hba%d", adapter->host->host_no); - remove_proc_entry(buf, mega_proc_dir_entry); - } - } -#endif + sprintf(buf, "hba%d", adapter->host->host_no); + remove_proc_subtree(buf, mega_proc_dir_entry); pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, adapter->mega_buffer, adapter->buf_dma_handle); diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h index 21eba2fd465a..18e85d9267ff 100644 --- a/drivers/scsi/megaraid.h +++ b/drivers/scsi/megaraid.h @@ -814,18 +814,6 @@ typedef struct { #ifdef CONFIG_PROC_FS struct proc_dir_entry *controller_proc_dir_entry; - struct proc_dir_entry *proc_read; - struct proc_dir_entry *proc_stat; - struct proc_dir_entry *proc_mbox; - -#if MEGA_HAVE_ENH_PROC - struct proc_dir_entry *proc_rr; - struct proc_dir_entry *proc_battery; -#define MAX_PROC_CHANNELS 4 - struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS]; - struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS]; -#endif - #endif int has_64bit_addr; /* are we using 64-bit addressing */ diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index b89c6e6c0589..ce656c466ca9 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -2772,7 +2772,7 @@ blk_eh_timer_return megasas_reset_timer(struct scsi_cmnd *scmd) if (time_after(jiffies, scmd->jiffies_at_alloc + (scmd_timeout * 2) * HZ)) { - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; } instance = (struct megasas_instance *)scmd->device->host->hostdata; diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index fe97401ad192..afd27165cd93 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -2155,7 +2155,7 @@ static enum blk_eh_timer_return mvumi_timed_out(struct scsi_cmnd *scmd) mvumi_return_cmd(mhba, cmd); spin_unlock_irqrestore(mhba->shost->host_lock, flags); - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; } static int diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index e18877177f1b..5a33e1ad9881 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -99,7 +99,7 @@ static int _osd_get_print_system_info(struct osd_dev *od, int nelem = ARRAY_SIZE(get_attrs), a = 0; int ret; - or = osd_start_request(od, GFP_KERNEL); + or = osd_start_request(od); if (!or) return -ENOMEM; @@ -409,16 +409,15 @@ static void _osd_request_free(struct osd_request *or) kfree(or); } -struct osd_request *osd_start_request(struct osd_dev *dev, gfp_t gfp) +struct osd_request *osd_start_request(struct osd_dev *dev) { struct osd_request *or; - or = _osd_request_alloc(gfp); + or = _osd_request_alloc(GFP_KERNEL); if (!or) return NULL; or->osd_dev = dev; - or->alloc_flags = gfp; or->timeout = dev->def_timeout; or->retries = OSD_REQ_RETRIES; @@ -546,7 +545,7 @@ static int _osd_realloc_seg(struct osd_request *or, if (seg->alloc_size >= max_bytes) return 0; - buff = krealloc(seg->buff, max_bytes, or->alloc_flags); + buff = krealloc(seg->buff, max_bytes, GFP_KERNEL); if (!buff) { OSD_ERR("Failed to Realloc %d-bytes was-%d\n", max_bytes, seg->alloc_size); @@ -728,7 +727,7 @@ static int _osd_req_list_objects(struct osd_request *or, _osd_req_encode_olist(or, list); WARN_ON(or->in.bio); - bio = bio_map_kern(q, list, len, or->alloc_flags); + bio = bio_map_kern(q, list, len, GFP_KERNEL); if (IS_ERR(bio)) { OSD_ERR("!!! Failed to allocate list_objects BIO\n"); return PTR_ERR(bio); @@ -1190,14 +1189,14 @@ static int _req_append_segment(struct osd_request *or, pad_buff = io->pad_buff; ret = blk_rq_map_kern(io->req->q, io->req, pad_buff, padding, - or->alloc_flags); + GFP_KERNEL); if (ret) return ret; io->total_bytes += padding; } ret = blk_rq_map_kern(io->req->q, io->req, seg->buff, seg->total_bytes, - or->alloc_flags); + GFP_KERNEL); if (ret) return ret; @@ -1564,14 +1563,14 @@ static int _osd_req_finalize_data_integrity(struct osd_request *or, * osd_finalize_request and helpers */ static struct request *_make_request(struct request_queue *q, bool has_write, - struct _osd_io_info *oii, gfp_t flags) + struct _osd_io_info *oii) { struct request *req; struct bio *bio = oii->bio; int ret; req = blk_get_request(q, has_write ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, - flags); + 0); if (IS_ERR(req)) return req; @@ -1589,13 +1588,12 @@ static struct request *_make_request(struct request_queue *q, bool has_write, static int _init_blk_request(struct osd_request *or, bool has_in, bool has_out) { - gfp_t flags = or->alloc_flags; struct scsi_device *scsi_device = or->osd_dev->scsi_device; struct request_queue *q = scsi_device->request_queue; struct request *req; int ret; - req = _make_request(q, has_out, has_out ? &or->out : &or->in, flags); + req = _make_request(q, has_out, has_out ? &or->out : &or->in); if (IS_ERR(req)) { ret = PTR_ERR(req); goto out; @@ -1611,7 +1609,7 @@ static int _init_blk_request(struct osd_request *or, or->out.req = req; if (has_in) { /* allocate bidi request */ - req = _make_request(q, false, &or->in, flags); + req = _make_request(q, false, &or->in); if (IS_ERR(req)) { OSD_DEBUG("blk_get_request for bidi failed\n"); ret = PTR_ERR(req); diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c index 20ec1c01dbd5..2bbe797f8c3d 100644 --- a/drivers/scsi/osst.c +++ b/drivers/scsi/osst.c @@ -368,7 +368,7 @@ static int osst_execute(struct osst_request *SRpnt, const unsigned char *cmd, int write = (data_direction == DMA_TO_DEVICE); req = blk_get_request(SRpnt->stp->device->request_queue, - write ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); + write ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0); if (IS_ERR(req)) return DRIVER_ERROR << 24; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 94c14ce94da2..0e13349dce57 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1848,7 +1848,7 @@ static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc) struct iscsi_cls_session *session; struct iscsi_session *sess; unsigned long flags; - enum blk_eh_timer_return ret = BLK_EH_NOT_HANDLED; + enum blk_eh_timer_return ret = BLK_EH_DONE; session = starget_to_session(scsi_target(sc->device)); sess = session->dd_data; diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 946039117bf4..9c02ba2e7ef3 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -282,7 +282,7 @@ void scsi_eh_scmd_add(struct scsi_cmnd *scmd) enum blk_eh_timer_return scsi_times_out(struct request *req) { struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(req); - enum blk_eh_timer_return rtn = BLK_EH_NOT_HANDLED; + enum blk_eh_timer_return rtn = BLK_EH_DONE; struct Scsi_Host *host = scmd->device->host; trace_scsi_dispatch_cmd_timeout(scmd); @@ -294,7 +294,7 @@ enum blk_eh_timer_return scsi_times_out(struct request *req) if (host->hostt->eh_timed_out) rtn = host->hostt->eh_timed_out(scmd); - if (rtn == BLK_EH_NOT_HANDLED) { + if (rtn == BLK_EH_DONE) { if (scsi_abort_command(scmd) != SUCCESS) { set_host_byte(scmd, DID_TIME_OUT); scsi_eh_scmd_add(scmd); @@ -1933,11 +1933,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev) struct request *req; struct scsi_request *rq; - /* - * blk_get_request with GFP_KERNEL (__GFP_RECLAIM) sleeps until a - * request becomes available - */ - req = blk_get_request(sdev->request_queue, REQ_OP_SCSI_IN, GFP_KERNEL); + req = blk_get_request(sdev->request_queue, REQ_OP_SCSI_IN, 0); if (IS_ERR(req)) return; rq = scsi_req(req); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index e9b4f279d29c..fb38aeff9dbd 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -265,7 +265,7 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, struct scsi_request *rq; int ret = DRIVER_ERROR << 24; - req = blk_get_request_flags(sdev->request_queue, + req = blk_get_request(sdev->request_queue, data_direction == DMA_TO_DEVICE ? REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, BLK_MQ_REQ_PREEMPT); if (IS_ERR(req)) @@ -273,7 +273,7 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd, rq = scsi_req(req); if (bufflen && blk_rq_map_kern(sdev->request_queue, req, - buffer, bufflen, __GFP_RECLAIM)) + buffer, bufflen, GFP_NOIO)) goto out; rq->cmd_len = COMMAND_SIZE(cmd[0]); @@ -2149,27 +2149,6 @@ static int scsi_map_queues(struct blk_mq_tag_set *set) return blk_mq_map_queues(set); } -static u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost) -{ - struct device *host_dev; - u64 bounce_limit = 0xffffffff; - - if (shost->unchecked_isa_dma) - return BLK_BOUNCE_ISA; - /* - * Platforms with virtual-DMA translation - * hardware have no practical limit. - */ - if (!PCI_DMA_BUS_IS_PHYS) - return BLK_BOUNCE_ANY; - - host_dev = scsi_get_device(shost); - if (host_dev && host_dev->dma_mask) - bounce_limit = (u64)dma_max_pfn(host_dev) << PAGE_SHIFT; - - return bounce_limit; -} - void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) { struct device *dev = shost->dma_dev; @@ -2189,7 +2168,8 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) } blk_queue_max_hw_sectors(q, shost->max_sectors); - blk_queue_bounce_limit(q, scsi_calculate_bounce_limit(shost)); + if (shost->unchecked_isa_dma) + blk_queue_bounce_limit(q, BLK_BOUNCE_ISA); blk_queue_segment_boundary(q, shost->dma_boundary); dma_set_seg_boundary(dev, shost->dma_boundary); diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index be3be0f9cb2d..1da3d71e9f61 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -2087,7 +2087,7 @@ fc_eh_timed_out(struct scsi_cmnd *scmd) if (rport->port_state == FC_PORTSTATE_BLOCKED) return BLK_EH_RESET_TIMER; - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; } EXPORT_SYMBOL(fc_eh_timed_out); @@ -3591,10 +3591,9 @@ fc_bsg_job_timeout(struct request *req) } /* the blk_end_sync_io() doesn't check the error */ - if (!inflight) - return BLK_EH_NOT_HANDLED; - else - return BLK_EH_HANDLED; + if (inflight) + blk_mq_complete_request(req); + return BLK_EH_DONE; } /** @@ -3781,8 +3780,7 @@ fc_bsg_hostadd(struct Scsi_Host *shost, struct fc_host_attrs *fc_host) snprintf(bsg_name, sizeof(bsg_name), "fc_host%d", shost->host_no); - q = bsg_setup_queue(dev, bsg_name, fc_bsg_dispatch, i->f->dd_bsg_size, - NULL); + q = bsg_setup_queue(dev, bsg_name, fc_bsg_dispatch, i->f->dd_bsg_size); if (IS_ERR(q)) { dev_err(dev, "fc_host%d: bsg interface failed to initialize - setup queue\n", @@ -3827,8 +3825,8 @@ fc_bsg_rportadd(struct Scsi_Host *shost, struct fc_rport *rport) if (!i->f->bsg_request) return -ENOTSUPP; - q = bsg_setup_queue(dev, NULL, fc_bsg_dispatch, i->f->dd_bsg_size, - NULL); + q = bsg_setup_queue(dev, dev_name(dev), fc_bsg_dispatch, + i->f->dd_bsg_size); if (IS_ERR(q)) { dev_err(dev, "failed to setup bsg queue\n"); return PTR_ERR(q); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 65f6c94f2e9b..6fd2fe210fc3 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1542,7 +1542,7 @@ iscsi_bsg_host_add(struct Scsi_Host *shost, struct iscsi_cls_host *ihost) return -ENOTSUPP; snprintf(bsg_name, sizeof(bsg_name), "iscsi_host%d", shost->host_no); - q = bsg_setup_queue(dev, bsg_name, iscsi_bsg_host_dispatch, 0, NULL); + q = bsg_setup_queue(dev, bsg_name, iscsi_bsg_host_dispatch, 0); if (IS_ERR(q)) { shost_printk(KERN_ERR, shost, "bsg interface failed to " "initialize - no request queue\n"); diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 08acbabfae07..e2953b416746 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -187,16 +187,6 @@ static int sas_smp_dispatch(struct bsg_job *job) return 0; } -static void sas_host_release(struct device *dev) -{ - struct Scsi_Host *shost = dev_to_shost(dev); - struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); - struct request_queue *q = sas_host->q; - - if (q) - blk_cleanup_queue(q); -} - static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy) { struct request_queue *q; @@ -208,7 +198,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy) if (rphy) { q = bsg_setup_queue(&rphy->dev, dev_name(&rphy->dev), - sas_smp_dispatch, 0, NULL); + sas_smp_dispatch, 0); if (IS_ERR(q)) return PTR_ERR(q); rphy->q = q; @@ -217,7 +207,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy) snprintf(name, sizeof(name), "sas_host%d", shost->host_no); q = bsg_setup_queue(&shost->shost_gendev, name, - sas_smp_dispatch, 0, sas_host_release); + sas_smp_dispatch, 0); if (IS_ERR(q)) return PTR_ERR(q); to_sas_host_attrs(shost)->q = q; @@ -260,8 +250,11 @@ static int sas_host_remove(struct transport_container *tc, struct device *dev, struct Scsi_Host *shost = dev_to_shost(dev); struct request_queue *q = to_sas_host_attrs(shost)->q; - if (q) + if (q) { bsg_unregister_queue(q); + blk_cleanup_queue(q); + } + return 0; } diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c index 456ce9f19569..4e46fdb2d7c9 100644 --- a/drivers/scsi/scsi_transport_srp.c +++ b/drivers/scsi/scsi_transport_srp.c @@ -604,7 +604,7 @@ EXPORT_SYMBOL(srp_reconnect_rport); * * 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). + * handle the timeout (BLK_EH_DONE). * * Note: This function is called from soft-IRQ context and with the request * queue lock held. @@ -620,7 +620,7 @@ enum blk_eh_timer_return srp_timed_out(struct scsi_cmnd *scmd) return rport && rport->fast_io_fail_tmo < 0 && rport->dev_loss_tmo < 0 && i->f->reset_timer_if_blocked && scsi_device_blocked(sdev) ? - BLK_EH_RESET_TIMER : BLK_EH_NOT_HANDLED; + BLK_EH_RESET_TIMER : BLK_EH_DONE; } EXPORT_SYMBOL(srp_timed_out); diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 5c40d809830f..6fc58e2c99d3 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -66,7 +66,6 @@ static int sg_version_num = 30536; /* 2 digits for each component */ static char *sg_version_date = "20140603"; static int sg_proc_init(void); -static void sg_proc_cleanup(void); #endif #define SG_ALLOW_DIO_DEF 0 @@ -1661,7 +1660,7 @@ static void __exit exit_sg(void) { #ifdef CONFIG_SCSI_PROC_FS - sg_proc_cleanup(); + remove_proc_subtree("scsi/sg", NULL); #endif /* CONFIG_SCSI_PROC_FS */ scsi_unregister_interface(&sg_interface); class_destroy(sg_sysfs_class); @@ -1715,7 +1714,7 @@ sg_start_req(Sg_request *srp, unsigned char *cmd) * does not sleep except under memory pressure. */ rq = blk_get_request(q, hp->dxfer_direction == SG_DXFER_TO_DEV ? - REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0); if (IS_ERR(rq)) { kfree(long_cmdp); return PTR_ERR(rq); @@ -2274,11 +2273,6 @@ sg_get_dev(int dev) } #ifdef CONFIG_SCSI_PROC_FS - -static struct proc_dir_entry *sg_proc_sgp = NULL; - -static char sg_proc_sg_dirname[] = "scsi/sg"; - static int sg_proc_seq_show_int(struct seq_file *s, void *v); static int sg_proc_single_open_adio(struct inode *inode, struct file *file); @@ -2306,37 +2300,11 @@ static const struct file_operations dressz_fops = { }; static int sg_proc_seq_show_version(struct seq_file *s, void *v); -static int sg_proc_single_open_version(struct inode *inode, struct file *file); -static const struct file_operations version_fops = { - .owner = THIS_MODULE, - .open = sg_proc_single_open_version, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int sg_proc_seq_show_devhdr(struct seq_file *s, void *v); -static int sg_proc_single_open_devhdr(struct inode *inode, struct file *file); -static const struct file_operations devhdr_fops = { - .owner = THIS_MODULE, - .open = sg_proc_single_open_devhdr, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int sg_proc_seq_show_dev(struct seq_file *s, void *v); -static int sg_proc_open_dev(struct inode *inode, struct file *file); static void * dev_seq_start(struct seq_file *s, loff_t *pos); static void * dev_seq_next(struct seq_file *s, void *v, loff_t *pos); static void dev_seq_stop(struct seq_file *s, void *v); -static const struct file_operations dev_fops = { - .owner = THIS_MODULE, - .open = sg_proc_open_dev, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; static const struct seq_operations dev_seq_ops = { .start = dev_seq_start, .next = dev_seq_next, @@ -2345,14 +2313,6 @@ static const struct seq_operations dev_seq_ops = { }; static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v); -static int sg_proc_open_devstrs(struct inode *inode, struct file *file); -static const struct file_operations devstrs_fops = { - .owner = THIS_MODULE, - .open = sg_proc_open_devstrs, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; static const struct seq_operations devstrs_seq_ops = { .start = dev_seq_start, .next = dev_seq_next, @@ -2361,14 +2321,6 @@ static const struct seq_operations devstrs_seq_ops = { }; static int sg_proc_seq_show_debug(struct seq_file *s, void *v); -static int sg_proc_open_debug(struct inode *inode, struct file *file); -static const struct file_operations debug_fops = { - .owner = THIS_MODULE, - .open = sg_proc_open_debug, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; static const struct seq_operations debug_seq_ops = { .start = dev_seq_start, .next = dev_seq_next, @@ -2376,50 +2328,23 @@ static const struct seq_operations debug_seq_ops = { .show = sg_proc_seq_show_debug, }; - -struct sg_proc_leaf { - const char * name; - const struct file_operations * fops; -}; - -static const struct sg_proc_leaf sg_proc_leaf_arr[] = { - {"allow_dio", &adio_fops}, - {"debug", &debug_fops}, - {"def_reserved_size", &dressz_fops}, - {"device_hdr", &devhdr_fops}, - {"devices", &dev_fops}, - {"device_strs", &devstrs_fops}, - {"version", &version_fops} -}; - static int sg_proc_init(void) { - int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr); - int k; + struct proc_dir_entry *p; - sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL); - if (!sg_proc_sgp) + p = proc_mkdir("scsi/sg", NULL); + if (!p) return 1; - for (k = 0; k < num_leaves; ++k) { - const struct sg_proc_leaf *leaf = &sg_proc_leaf_arr[k]; - umode_t mask = leaf->fops->write ? S_IRUGO | S_IWUSR : S_IRUGO; - proc_create(leaf->name, mask, sg_proc_sgp, leaf->fops); - } - return 0; -} -static void -sg_proc_cleanup(void) -{ - int k; - int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr); - - if (!sg_proc_sgp) - return; - for (k = 0; k < num_leaves; ++k) - remove_proc_entry(sg_proc_leaf_arr[k].name, sg_proc_sgp); - remove_proc_entry(sg_proc_sg_dirname, NULL); + proc_create("allow_dio", S_IRUGO | S_IWUSR, p, &adio_fops); + proc_create_seq("debug", S_IRUGO, p, &debug_seq_ops); + proc_create("def_reserved_size", S_IRUGO | S_IWUSR, p, &dressz_fops); + proc_create_single("device_hdr", S_IRUGO, p, sg_proc_seq_show_devhdr); + proc_create_seq("devices", S_IRUGO, p, &dev_seq_ops); + proc_create_seq("device_strs", S_IRUGO, p, &devstrs_seq_ops); + proc_create_single("version", S_IRUGO, p, sg_proc_seq_show_version); + return 0; } @@ -2482,22 +2407,12 @@ static int sg_proc_seq_show_version(struct seq_file *s, void *v) return 0; } -static int sg_proc_single_open_version(struct inode *inode, struct file *file) -{ - return single_open(file, sg_proc_seq_show_version, NULL); -} - static int sg_proc_seq_show_devhdr(struct seq_file *s, void *v) { seq_puts(s, "host\tchan\tid\tlun\ttype\topens\tqdepth\tbusy\tonline\n"); return 0; } -static int sg_proc_single_open_devhdr(struct inode *inode, struct file *file) -{ - return single_open(file, sg_proc_seq_show_devhdr, NULL); -} - struct sg_proc_deviter { loff_t index; size_t max; @@ -2531,11 +2446,6 @@ static void dev_seq_stop(struct seq_file *s, void *v) kfree(s->private); } -static int sg_proc_open_dev(struct inode *inode, struct file *file) -{ - return seq_open(file, &dev_seq_ops); -} - static int sg_proc_seq_show_dev(struct seq_file *s, void *v) { struct sg_proc_deviter * it = (struct sg_proc_deviter *) v; @@ -2562,11 +2472,6 @@ static int sg_proc_seq_show_dev(struct seq_file *s, void *v) return 0; } -static int sg_proc_open_devstrs(struct inode *inode, struct file *file) -{ - return seq_open(file, &devstrs_seq_ops); -} - static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v) { struct sg_proc_deviter * it = (struct sg_proc_deviter *) v; @@ -2650,11 +2555,6 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) } } -static int sg_proc_open_debug(struct inode *inode, struct file *file) -{ - return seq_open(file, &debug_seq_ops); -} - static int sg_proc_seq_show_debug(struct seq_file *s, void *v) { struct sg_proc_deviter * it = (struct sg_proc_deviter *) v; diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 6c399480783d..a427ce9497be 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -545,7 +545,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd, req = blk_get_request(SRpnt->stp->device->request_queue, data_direction == DMA_TO_DEVICE ? - REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, GFP_KERNEL); + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0); if (IS_ERR(req)) return DRIVER_ERROR << 24; rq = scsi_req(req); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 00e79057f870..d0a1674915a1 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6497,12 +6497,12 @@ static enum blk_eh_timer_return ufshcd_eh_timed_out(struct scsi_cmnd *scmd) bool found = false; if (!scmd || !scmd->device || !scmd->device->host) - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; host = scmd->device->host; hba = shost_priv(host); if (!hba) - return BLK_EH_NOT_HANDLED; + return BLK_EH_DONE; spin_lock_irqsave(host->host_lock, flags); @@ -6520,7 +6520,7 @@ static enum blk_eh_timer_return ufshcd_eh_timed_out(struct scsi_cmnd *scmd) * SCSI command was not actually dispatched to UFS driver, otherwise * let SCSI layer handle the error as usual. */ - return found ? BLK_EH_NOT_HANDLED : BLK_EH_RESET_TIMER; + return found ? BLK_EH_DONE : BLK_EH_RESET_TIMER; } static const struct attribute_group *ufshcd_driver_groups[] = { diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 2d4146ce2f1b..ad5d68e1dab7 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -47,6 +47,13 @@ config SPI_MASTER if SPI_MASTER +config SPI_MEM + bool "SPI memory extension" + help + Enable this option if you want to enable the SPI memory extension. + This extension is meant to simplify interaction with SPI memories + by providing a high-level interface to send memory-like commands. + comment "SPI Master Controller Drivers" config SPI_ALTERA @@ -71,7 +78,6 @@ config SPI_ARMADA_3700 config SPI_ATMEL tristate "Atmel SPI Controller" - depends on HAS_DMA depends on ARCH_AT91 || COMPILE_TEST help This selects a driver for the Atmel SPI Controller, present on @@ -115,14 +121,6 @@ config SPI_BCM2835AUX "universal SPI master", and the regular SPI controller. This driver is for the universal/auxiliary SPI controller. -config SPI_BCM53XX - tristate "Broadcom BCM53xx SPI controller" - depends on ARCH_BCM_5301X - depends on BCMA_POSSIBLE - select BCMA - help - Enable support for the SPI controller on Broadcom BCM53xx ARM SoCs. - config SPI_BCM63XX tristate "Broadcom BCM63xx SPI controller" depends on BCM63XX || COMPILE_TEST @@ -233,7 +231,6 @@ config SPI_EFM32 config SPI_EP93XX tristate "Cirrus Logic EP93xx SPI controller" - depends on HAS_DMA depends on ARCH_EP93XX || COMPILE_TEST help This enables using the Cirrus EP93xx SPI controller in master @@ -355,7 +352,6 @@ config SPI_FSL_SPI config SPI_FSL_DSPI tristate "Freescale DSPI controller" select REGMAP_MMIO - depends on HAS_DMA depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST help This enables support for the Freescale DSPI controller in master @@ -431,7 +427,6 @@ config SPI_OMAP_UWIRE config SPI_OMAP24XX tristate "McSPI driver for OMAP" - depends on HAS_DMA depends on ARCH_OMAP2PLUS || COMPILE_TEST select SG_SPLIT help @@ -440,7 +435,6 @@ config SPI_OMAP24XX config SPI_TI_QSPI tristate "DRA7xxx QSPI controller support" - depends on HAS_DMA depends on ARCH_OMAP2PLUS || COMPILE_TEST help QSPI master controller for DRA7xxx used for flash devices. @@ -469,7 +463,6 @@ config SPI_PIC32 config SPI_PIC32_SQI tristate "Microchip PIC32 Quad SPI driver" depends on MACH_PIC32 || COMPILE_TEST - depends on HAS_DMA help SPI driver for PIC32 Quad SPI controller. @@ -572,7 +565,7 @@ config SPI_SC18IS602 config SPI_SH_MSIOF tristate "SuperH MSIOF SPI controller" - depends on HAVE_CLK && HAS_DMA + depends on HAVE_CLK depends on ARCH_SHMOBILE || ARCH_RENESAS || COMPILE_TEST help SPI driver for SuperH and SH Mobile MSIOF blocks. @@ -650,7 +643,7 @@ config SPI_MXS config SPI_TEGRA114 tristate "NVIDIA Tegra114 SPI Controller" depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST - depends on RESET_CONTROLLER && HAS_DMA + depends on RESET_CONTROLLER help SPI driver for NVIDIA Tegra114 SPI Controller interface. This controller is different than the older SoCs SPI controller and also register interface @@ -668,7 +661,7 @@ config SPI_TEGRA20_SFLASH config SPI_TEGRA20_SLINK tristate "Nvidia Tegra20/Tegra30 SLINK Controller" depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST - depends on RESET_CONTROLLER && HAS_DMA + depends on RESET_CONTROLLER help SPI driver for Nvidia Tegra20/Tegra30 SLINK Controller interface. diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index b935f10eb961..cb1f4378b87c 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -8,6 +8,7 @@ ccflags-$(CONFIG_SPI_DEBUG) := -DDEBUG # small core, mostly translating board-specific # config declarations into driver model code obj-$(CONFIG_SPI_MASTER) += spi.o +obj-$(CONFIG_SPI_MEM) += spi-mem.o obj-$(CONFIG_SPI_SPIDEV) += spidev.o obj-$(CONFIG_SPI_LOOPBACK_TEST) += spi-loopback-test.o @@ -20,7 +21,6 @@ obj-$(CONFIG_SPI_AU1550) += spi-au1550.o obj-$(CONFIG_SPI_AXI_SPI_ENGINE) += spi-axi-spi-engine.o obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o obj-$(CONFIG_SPI_BCM2835AUX) += spi-bcm2835aux.o -obj-$(CONFIG_SPI_BCM53XX) += spi-bcm53xx.o obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o obj-$(CONFIG_SPI_BCM63XX_HSSPI) += spi-bcm63xx-hsspi.o obj-$(CONFIG_SPI_BCM_QSPI) += spi-iproc-qspi.o spi-brcmstb-qspi.o spi-bcm-qspi.o diff --git a/drivers/spi/internals.h b/drivers/spi/internals.h new file mode 100644 index 000000000000..4a28a8395552 --- /dev/null +++ b/drivers/spi/internals.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 Exceet Electronics GmbH + * Copyright (C) 2018 Bootlin + * + * Author: Boris Brezillon <boris.brezillon@bootlin.com> + * + * Helpers needed by the spi or spi-mem logic. Should not be used outside of + * spi-mem.c and spi.c. + */ + +#ifndef __LINUX_SPI_INTERNALS_H +#define __LINUX_SPI_INTERNALS_H + +#include <linux/device.h> +#include <linux/dma-direction.h> +#include <linux/scatterlist.h> +#include <linux/spi/spi.h> + +void spi_flush_queue(struct spi_controller *ctrl); + +#ifdef CONFIG_HAS_DMA +int spi_map_buf(struct spi_controller *ctlr, struct device *dev, + struct sg_table *sgt, void *buf, size_t len, + enum dma_data_direction dir); +void spi_unmap_buf(struct spi_controller *ctlr, struct device *dev, + struct sg_table *sgt, enum dma_data_direction dir); +#else /* !CONFIG_HAS_DMA */ +static inline int spi_map_buf(struct spi_controller *ctlr, struct device *dev, + struct sg_table *sgt, void *buf, size_t len, + enum dma_data_direction dir) +{ + return -EINVAL; +} + +static inline void spi_unmap_buf(struct spi_controller *ctlr, + struct device *dev, struct sg_table *sgt, + enum dma_data_direction dir) +{ +} +#endif /* CONFIG_HAS_DMA */ + +#endif /* __LINUX_SPI_INTERNALS_H */ diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c index 6573152ce893..8612525fa4e3 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -30,6 +30,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/spi/spi.h> +#include <linux/spi/spi-mem.h> #include <linux/sysfs.h> #include <linux/types.h> #include "spi-bcm-qspi.h" @@ -215,10 +216,10 @@ struct bcm_qspi { int bspi_maj_rev; int bspi_min_rev; int bspi_enabled; - struct spi_flash_read_message *bspi_rf_msg; - u32 bspi_rf_msg_idx; - u32 bspi_rf_msg_len; - u32 bspi_rf_msg_status; + const struct spi_mem_op *bspi_rf_op; + u32 bspi_rf_op_idx; + u32 bspi_rf_op_len; + u32 bspi_rf_op_status; struct bcm_xfer_mode xfer_mode; u32 s3_strap_override_ctrl; bool bspi_mode; @@ -313,26 +314,26 @@ static inline void bcm_qspi_bspi_lr_clear(struct bcm_qspi *qspi) static void bcm_qspi_bspi_lr_data_read(struct bcm_qspi *qspi) { - u32 *buf = (u32 *)qspi->bspi_rf_msg->buf; + u32 *buf = (u32 *)qspi->bspi_rf_op->data.buf.in; u32 data = 0; - dev_dbg(&qspi->pdev->dev, "xfer %p rx %p rxlen %d\n", qspi->bspi_rf_msg, - qspi->bspi_rf_msg->buf, qspi->bspi_rf_msg_len); + dev_dbg(&qspi->pdev->dev, "xfer %p rx %p rxlen %d\n", qspi->bspi_rf_op, + qspi->bspi_rf_op->data.buf.in, qspi->bspi_rf_op_len); while (!bcm_qspi_bspi_lr_is_fifo_empty(qspi)) { data = bcm_qspi_bspi_lr_read_fifo(qspi); - if (likely(qspi->bspi_rf_msg_len >= 4) && + if (likely(qspi->bspi_rf_op_len >= 4) && IS_ALIGNED((uintptr_t)buf, 4)) { - buf[qspi->bspi_rf_msg_idx++] = data; - qspi->bspi_rf_msg_len -= 4; + buf[qspi->bspi_rf_op_idx++] = data; + qspi->bspi_rf_op_len -= 4; } else { /* Read out remaining bytes, make sure*/ - u8 *cbuf = (u8 *)&buf[qspi->bspi_rf_msg_idx]; + u8 *cbuf = (u8 *)&buf[qspi->bspi_rf_op_idx]; data = cpu_to_le32(data); - while (qspi->bspi_rf_msg_len) { + while (qspi->bspi_rf_op_len) { *cbuf++ = (u8)data; data >>= 8; - qspi->bspi_rf_msg_len--; + qspi->bspi_rf_op_len--; } } } @@ -349,14 +350,12 @@ static void bcm_qspi_bspi_set_xfer_params(struct bcm_qspi *qspi, u8 cmd_byte, } static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi, - struct spi_flash_read_message *msg, - int hp) + const struct spi_mem_op *op, int hp) { int bpc = 0, bpp = 0; - u8 command = msg->read_opcode; - int width = msg->data_nbits ? msg->data_nbits : SPI_NBITS_SINGLE; - int addrlen = msg->addr_width; - int addr_nbits = msg->addr_nbits ? msg->addr_nbits : SPI_NBITS_SINGLE; + u8 command = op->cmd.opcode; + int width = op->cmd.buswidth ? op->cmd.buswidth : SPI_NBITS_SINGLE; + int addrlen = op->addr.nbytes * 8; int flex_mode = 1; dev_dbg(&qspi->pdev->dev, "set flex mode w %x addrlen %x hp %d\n", @@ -365,7 +364,7 @@ static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi, if (addrlen == BSPI_ADDRLEN_4BYTES) bpp = BSPI_BPP_ADDR_SELECT_MASK; - bpp |= msg->dummy_bytes * (8/addr_nbits); + bpp |= (op->dummy.nbytes * 8) / op->dummy.buswidth; switch (width) { case SPI_NBITS_SINGLE: @@ -397,11 +396,10 @@ static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi, } static int bcm_qspi_bspi_set_override(struct bcm_qspi *qspi, - struct spi_flash_read_message *msg, - int hp) + const struct spi_mem_op *op, int hp) { - int width = msg->data_nbits ? msg->data_nbits : SPI_NBITS_SINGLE; - int addrlen = msg->addr_width; + int width = op->data.buswidth ? op->data.buswidth : SPI_NBITS_SINGLE; + int addrlen = op->addr.nbytes; u32 data = bcm_qspi_read(qspi, BSPI, BSPI_STRAP_OVERRIDE_CTRL); dev_dbg(&qspi->pdev->dev, "set override mode w %x addrlen %x hp %d\n", @@ -437,17 +435,17 @@ static int bcm_qspi_bspi_set_override(struct bcm_qspi *qspi, /* set the override mode */ data |= BSPI_STRAP_OVERRIDE_CTRL_OVERRIDE; bcm_qspi_write(qspi, BSPI, BSPI_STRAP_OVERRIDE_CTRL, data); - bcm_qspi_bspi_set_xfer_params(qspi, msg->read_opcode, 0, 0, 0); + bcm_qspi_bspi_set_xfer_params(qspi, op->cmd.opcode, 0, 0, 0); return 0; } static int bcm_qspi_bspi_set_mode(struct bcm_qspi *qspi, - struct spi_flash_read_message *msg, int hp) + const struct spi_mem_op *op, int hp) { int error = 0; - int width = msg->data_nbits ? msg->data_nbits : SPI_NBITS_SINGLE; - int addrlen = msg->addr_width; + int width = op->data.buswidth ? op->data.buswidth : SPI_NBITS_SINGLE; + int addrlen = op->addr.nbytes; /* default mode */ qspi->xfer_mode.flex_mode = true; @@ -460,12 +458,12 @@ static int bcm_qspi_bspi_set_mode(struct bcm_qspi *qspi, if (val & mask || qspi->s3_strap_override_ctrl & mask) { qspi->xfer_mode.flex_mode = false; bcm_qspi_write(qspi, BSPI, BSPI_FLEX_MODE_ENABLE, 0); - error = bcm_qspi_bspi_set_override(qspi, msg, hp); + error = bcm_qspi_bspi_set_override(qspi, op, hp); } } if (qspi->xfer_mode.flex_mode) - error = bcm_qspi_bspi_set_flex_mode(qspi, msg, hp); + error = bcm_qspi_bspi_set_flex_mode(qspi, op, hp); if (error) { dev_warn(&qspi->pdev->dev, @@ -802,19 +800,20 @@ done: return slot; } -static int bcm_qspi_bspi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) +static int bcm_qspi_bspi_exec_mem_op(struct spi_device *spi, + const struct spi_mem_op *op) { struct bcm_qspi *qspi = spi_master_get_devdata(spi->master); - u32 addr = 0, len, rdlen, len_words; + u32 addr = 0, len, rdlen, len_words, from = 0; int ret = 0; unsigned long timeo = msecs_to_jiffies(100); struct bcm_qspi_soc_intc *soc_intc = qspi->soc_intc; if (bcm_qspi_bspi_ver_three(qspi)) - if (msg->addr_width == BSPI_ADDRLEN_4BYTES) + if (op->addr.nbytes == BSPI_ADDRLEN_4BYTES) return -EIO; + from = op->addr.val; bcm_qspi_chip_select(qspi, spi->chip_select); bcm_qspi_write(qspi, MSPI, MSPI_WRITE_LOCK, 0); @@ -823,15 +822,15 @@ static int bcm_qspi_bspi_flash_read(struct spi_device *spi, * the upper address byte to bspi */ if (bcm_qspi_bspi_ver_three(qspi) == false) { - addr = msg->from & 0xff000000; + addr = from & 0xff000000; bcm_qspi_write(qspi, BSPI, BSPI_BSPI_FLASH_UPPER_ADDR_BYTE, addr); } if (!qspi->xfer_mode.flex_mode) - addr = msg->from; + addr = from; else - addr = msg->from & 0x00ffffff; + addr = from & 0x00ffffff; if (bcm_qspi_bspi_ver_three(qspi) == true) addr = (addr + 0xc00000) & 0xffffff; @@ -840,8 +839,8 @@ static int bcm_qspi_bspi_flash_read(struct spi_device *spi, * read into the entire buffer by breaking the reads * into RAF buffer read lengths */ - len = msg->len; - qspi->bspi_rf_msg_idx = 0; + len = op->data.nbytes; + qspi->bspi_rf_op_idx = 0; do { if (len > BSPI_READ_LENGTH) @@ -852,9 +851,9 @@ static int bcm_qspi_bspi_flash_read(struct spi_device *spi, reinit_completion(&qspi->bspi_done); bcm_qspi_enable_bspi(qspi); len_words = (rdlen + 3) >> 2; - qspi->bspi_rf_msg = msg; - qspi->bspi_rf_msg_status = 0; - qspi->bspi_rf_msg_len = rdlen; + qspi->bspi_rf_op = op; + qspi->bspi_rf_op_status = 0; + qspi->bspi_rf_op_len = rdlen; dev_dbg(&qspi->pdev->dev, "bspi xfr addr 0x%x len 0x%x", addr, rdlen); bcm_qspi_write(qspi, BSPI, BSPI_RAF_START_ADDR, addr); @@ -879,7 +878,6 @@ static int bcm_qspi_bspi_flash_read(struct spi_device *spi, } /* set msg return length */ - msg->retlen += rdlen; addr += rdlen; len -= rdlen; } while (len); @@ -914,61 +912,63 @@ static int bcm_qspi_transfer_one(struct spi_master *master, return 0; } -static int bcm_qspi_mspi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) +static int bcm_qspi_mspi_exec_mem_op(struct spi_device *spi, + const struct spi_mem_op *op) { - struct bcm_qspi *qspi = spi_master_get_devdata(spi->master); + struct spi_master *master = spi->master; + struct bcm_qspi *qspi = spi_master_get_devdata(master); struct spi_transfer t[2]; - u8 cmd[6]; - int ret; + u8 cmd[6] = { }; + int ret, i; memset(cmd, 0, sizeof(cmd)); memset(t, 0, sizeof(t)); /* tx */ /* opcode is in cmd[0] */ - cmd[0] = msg->read_opcode; - cmd[1] = msg->from >> (msg->addr_width * 8 - 8); - cmd[2] = msg->from >> (msg->addr_width * 8 - 16); - cmd[3] = msg->from >> (msg->addr_width * 8 - 24); - cmd[4] = msg->from >> (msg->addr_width * 8 - 32); + cmd[0] = op->cmd.opcode; + for (i = 0; i < op->addr.nbytes; i++) + cmd[1 + i] = op->addr.val >> (8 * (op->addr.nbytes - i - 1)); + t[0].tx_buf = cmd; - t[0].len = msg->addr_width + msg->dummy_bytes + 1; + t[0].len = op->addr.nbytes + op->dummy.nbytes + 1; t[0].bits_per_word = spi->bits_per_word; - t[0].tx_nbits = msg->opcode_nbits; + t[0].tx_nbits = op->cmd.buswidth; /* lets mspi know that this is not last transfer */ qspi->trans_pos.mspi_last_trans = false; - ret = bcm_qspi_transfer_one(spi->master, spi, &t[0]); + ret = bcm_qspi_transfer_one(master, spi, &t[0]); /* rx */ qspi->trans_pos.mspi_last_trans = true; if (!ret) { /* rx */ - t[1].rx_buf = msg->buf; - t[1].len = msg->len; - t[1].rx_nbits = msg->data_nbits; + t[1].rx_buf = op->data.buf.in; + t[1].len = op->data.nbytes; + t[1].rx_nbits = op->data.buswidth; t[1].bits_per_word = spi->bits_per_word; - ret = bcm_qspi_transfer_one(spi->master, spi, &t[1]); + ret = bcm_qspi_transfer_one(master, spi, &t[1]); } - if (!ret) - msg->retlen = msg->len; - return ret; } -static int bcm_qspi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) +static int bcm_qspi_exec_mem_op(struct spi_mem *mem, + const struct spi_mem_op *op) { + struct spi_device *spi = mem->spi; struct bcm_qspi *qspi = spi_master_get_devdata(spi->master); int ret = 0; bool mspi_read = false; - u32 addr, len; + u32 addr = 0, len; u_char *buf; - buf = msg->buf; - addr = msg->from; - len = msg->len; + if (!op->data.nbytes || !op->addr.nbytes || op->addr.nbytes > 4 || + op->data.dir != SPI_MEM_DATA_IN) + return -ENOTSUPP; + + buf = op->data.buf.in; + addr = op->addr.val; + len = op->data.nbytes; if (bcm_qspi_bspi_ver_three(qspi) == true) { /* @@ -990,12 +990,12 @@ static int bcm_qspi_flash_read(struct spi_device *spi, mspi_read = true; if (mspi_read) - return bcm_qspi_mspi_flash_read(spi, msg); + return bcm_qspi_mspi_exec_mem_op(spi, op); - ret = bcm_qspi_bspi_set_mode(qspi, msg, -1); + ret = bcm_qspi_bspi_set_mode(qspi, op, -1); if (!ret) - ret = bcm_qspi_bspi_flash_read(spi, msg); + ret = bcm_qspi_bspi_exec_mem_op(spi, op); return ret; } @@ -1034,10 +1034,10 @@ static irqreturn_t bcm_qspi_bspi_lr_l2_isr(int irq, void *dev_id) struct bcm_qspi_soc_intc *soc_intc = qspi->soc_intc; u32 status = qspi_dev_id->irqp->mask; - if (qspi->bspi_enabled && qspi->bspi_rf_msg) { + if (qspi->bspi_enabled && qspi->bspi_rf_op) { bcm_qspi_bspi_lr_data_read(qspi); - if (qspi->bspi_rf_msg_len == 0) { - qspi->bspi_rf_msg = NULL; + if (qspi->bspi_rf_op_len == 0) { + qspi->bspi_rf_op = NULL; if (qspi->soc_intc) { /* disable soc BSPI interrupt */ soc_intc->bcm_qspi_int_set(soc_intc, BSPI_DONE, @@ -1046,7 +1046,7 @@ static irqreturn_t bcm_qspi_bspi_lr_l2_isr(int irq, void *dev_id) status = INTR_BSPI_LR_SESSION_DONE_MASK; } - if (qspi->bspi_rf_msg_status) + if (qspi->bspi_rf_op_status) bcm_qspi_bspi_lr_clear(qspi); else bcm_qspi_bspi_flush_prefetch_buffers(qspi); @@ -1058,7 +1058,7 @@ static irqreturn_t bcm_qspi_bspi_lr_l2_isr(int irq, void *dev_id) } status &= INTR_BSPI_LR_SESSION_DONE_MASK; - if (qspi->bspi_enabled && status && qspi->bspi_rf_msg_len == 0) + if (qspi->bspi_enabled && status && qspi->bspi_rf_op_len == 0) complete(&qspi->bspi_done); return IRQ_HANDLED; @@ -1071,7 +1071,7 @@ static irqreturn_t bcm_qspi_bspi_lr_err_l2_isr(int irq, void *dev_id) struct bcm_qspi_soc_intc *soc_intc = qspi->soc_intc; dev_err(&qspi->pdev->dev, "BSPI INT error\n"); - qspi->bspi_rf_msg_status = -EIO; + qspi->bspi_rf_op_status = -EIO; if (qspi->soc_intc) /* clear soc interrupt */ soc_intc->bcm_qspi_int_ack(soc_intc, BSPI_ERR); @@ -1194,6 +1194,10 @@ static void bcm_qspi_hw_uninit(struct bcm_qspi *qspi) } +static const struct spi_controller_mem_ops bcm_qspi_mem_ops = { + .exec_op = bcm_qspi_exec_mem_op, +}; + static const struct of_device_id bcm_qspi_of_match[] = { { .compatible = "brcm,spi-bcm-qspi" }, {}, @@ -1236,7 +1240,7 @@ int bcm_qspi_probe(struct platform_device *pdev, master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_RX_DUAL | SPI_RX_QUAD; master->setup = bcm_qspi_setup; master->transfer_one = bcm_qspi_transfer_one; - master->spi_flash_read = bcm_qspi_flash_read; + master->mem_ops = &bcm_qspi_mem_ops; master->cleanup = bcm_qspi_cleanup; master->dev.of_node = dev->of_node; master->num_chipselect = NUM_CHIPSELECT; diff --git a/drivers/spi/spi-bcm53xx.c b/drivers/spi/spi-bcm53xx.c deleted file mode 100644 index d02ceb7a29d1..000000000000 --- a/drivers/spi/spi-bcm53xx.c +++ /dev/null @@ -1,360 +0,0 @@ -/* - * Copyright (C) 2014-2016 RafaÅ‚ MiÅ‚ecki <rafal@milecki.pl> - * - * 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. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/bcma/bcma.h> -#include <linux/spi/spi.h> - -#include "spi-bcm53xx.h" - -#define BCM53XXSPI_MAX_SPI_BAUD 13500000 /* 216 MHz? */ -#define BCM53XXSPI_FLASH_WINDOW SZ_32M - -/* The longest observed required wait was 19 ms */ -#define BCM53XXSPI_SPE_TIMEOUT_MS 80 - -struct bcm53xxspi { - struct bcma_device *core; - struct spi_master *master; - void __iomem *mmio_base; - bool bspi; /* Boot SPI mode with memory mapping */ -}; - -static inline u32 bcm53xxspi_read(struct bcm53xxspi *b53spi, u16 offset) -{ - return bcma_read32(b53spi->core, offset); -} - -static inline void bcm53xxspi_write(struct bcm53xxspi *b53spi, u16 offset, - u32 value) -{ - bcma_write32(b53spi->core, offset, value); -} - -static void bcm53xxspi_disable_bspi(struct bcm53xxspi *b53spi) -{ - struct device *dev = &b53spi->core->dev; - unsigned long deadline; - u32 tmp; - - if (!b53spi->bspi) - return; - - tmp = bcm53xxspi_read(b53spi, B53SPI_BSPI_MAST_N_BOOT_CTRL); - if (tmp & 0x1) - return; - - deadline = jiffies + usecs_to_jiffies(200); - do { - tmp = bcm53xxspi_read(b53spi, B53SPI_BSPI_BUSY_STATUS); - if (!(tmp & 0x1)) { - bcm53xxspi_write(b53spi, B53SPI_BSPI_MAST_N_BOOT_CTRL, - 0x1); - ndelay(200); - b53spi->bspi = false; - return; - } - udelay(1); - } while (!time_after_eq(jiffies, deadline)); - - dev_warn(dev, "Timeout disabling BSPI\n"); -} - -static void bcm53xxspi_enable_bspi(struct bcm53xxspi *b53spi) -{ - u32 tmp; - - if (b53spi->bspi) - return; - - tmp = bcm53xxspi_read(b53spi, B53SPI_BSPI_MAST_N_BOOT_CTRL); - if (!(tmp & 0x1)) - return; - - bcm53xxspi_write(b53spi, B53SPI_BSPI_MAST_N_BOOT_CTRL, 0x0); - b53spi->bspi = true; -} - -static inline unsigned int bcm53xxspi_calc_timeout(size_t len) -{ - /* Do some magic calculation based on length and buad. Add 10% and 1. */ - return (len * 9000 / BCM53XXSPI_MAX_SPI_BAUD * 110 / 100) + 1; -} - -static int bcm53xxspi_wait(struct bcm53xxspi *b53spi, unsigned int timeout_ms) -{ - unsigned long deadline; - u32 tmp; - - /* SPE bit has to be 0 before we read MSPI STATUS */ - deadline = jiffies + msecs_to_jiffies(BCM53XXSPI_SPE_TIMEOUT_MS); - do { - tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2); - if (!(tmp & B53SPI_MSPI_SPCR2_SPE)) - break; - udelay(5); - } while (!time_after_eq(jiffies, deadline)); - - if (tmp & B53SPI_MSPI_SPCR2_SPE) - goto spi_timeout; - - /* Check status */ - deadline = jiffies + msecs_to_jiffies(timeout_ms); - do { - tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_MSPI_STATUS); - if (tmp & B53SPI_MSPI_MSPI_STATUS_SPIF) { - bcm53xxspi_write(b53spi, B53SPI_MSPI_MSPI_STATUS, 0); - return 0; - } - - cpu_relax(); - udelay(100); - } while (!time_after_eq(jiffies, deadline)); - -spi_timeout: - bcm53xxspi_write(b53spi, B53SPI_MSPI_MSPI_STATUS, 0); - - pr_err("Timeout waiting for SPI to be ready!\n"); - - return -EBUSY; -} - -static void bcm53xxspi_buf_write(struct bcm53xxspi *b53spi, u8 *w_buf, - size_t len, bool cont) -{ - u32 tmp; - int i; - - for (i = 0; i < len; i++) { - /* Transmit Register File MSB */ - bcm53xxspi_write(b53spi, B53SPI_MSPI_TXRAM + 4 * (i * 2), - (unsigned int)w_buf[i]); - } - - for (i = 0; i < len; i++) { - tmp = B53SPI_CDRAM_CONT | B53SPI_CDRAM_PCS_DISABLE_ALL | - B53SPI_CDRAM_PCS_DSCK; - if (!cont && i == len - 1) - tmp &= ~B53SPI_CDRAM_CONT; - tmp &= ~0x1; - /* Command Register File */ - bcm53xxspi_write(b53spi, B53SPI_MSPI_CDRAM + 4 * i, tmp); - } - - /* Set queue pointers */ - bcm53xxspi_write(b53spi, B53SPI_MSPI_NEWQP, 0); - bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP, len - 1); - - if (cont) - bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 1); - - /* Start SPI transfer */ - tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2); - tmp |= B53SPI_MSPI_SPCR2_SPE; - if (cont) - tmp |= B53SPI_MSPI_SPCR2_CONT_AFTER_CMD; - bcm53xxspi_write(b53spi, B53SPI_MSPI_SPCR2, tmp); - - /* Wait for SPI to finish */ - bcm53xxspi_wait(b53spi, bcm53xxspi_calc_timeout(len)); - - if (!cont) - bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0); -} - -static void bcm53xxspi_buf_read(struct bcm53xxspi *b53spi, u8 *r_buf, - size_t len, bool cont) -{ - u32 tmp; - int i; - - for (i = 0; i < len; i++) { - tmp = B53SPI_CDRAM_CONT | B53SPI_CDRAM_PCS_DISABLE_ALL | - B53SPI_CDRAM_PCS_DSCK; - if (!cont && i == len - 1) - tmp &= ~B53SPI_CDRAM_CONT; - tmp &= ~0x1; - /* Command Register File */ - bcm53xxspi_write(b53spi, B53SPI_MSPI_CDRAM + 4 * i, tmp); - } - - /* Set queue pointers */ - bcm53xxspi_write(b53spi, B53SPI_MSPI_NEWQP, 0); - bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP, len - 1); - - if (cont) - bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 1); - - /* Start SPI transfer */ - tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2); - tmp |= B53SPI_MSPI_SPCR2_SPE; - if (cont) - tmp |= B53SPI_MSPI_SPCR2_CONT_AFTER_CMD; - bcm53xxspi_write(b53spi, B53SPI_MSPI_SPCR2, tmp); - - /* Wait for SPI to finish */ - bcm53xxspi_wait(b53spi, bcm53xxspi_calc_timeout(len)); - - if (!cont) - bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0); - - for (i = 0; i < len; ++i) { - u16 reg = B53SPI_MSPI_RXRAM + 4 * (1 + i * 2); - - /* Data stored in the transmit register file LSB */ - r_buf[i] = (u8)bcm53xxspi_read(b53spi, reg); - } -} - -static int bcm53xxspi_transfer_one(struct spi_master *master, - struct spi_device *spi, - struct spi_transfer *t) -{ - struct bcm53xxspi *b53spi = spi_master_get_devdata(master); - u8 *buf; - size_t left; - - bcm53xxspi_disable_bspi(b53spi); - - if (t->tx_buf) { - buf = (u8 *)t->tx_buf; - left = t->len; - while (left) { - size_t to_write = min_t(size_t, 16, left); - bool cont = !spi_transfer_is_last(master, t) || - left - to_write > 0; - - bcm53xxspi_buf_write(b53spi, buf, to_write, cont); - left -= to_write; - buf += to_write; - } - } - - if (t->rx_buf) { - buf = (u8 *)t->rx_buf; - left = t->len; - while (left) { - size_t to_read = min_t(size_t, 16, left); - bool cont = !spi_transfer_is_last(master, t) || - left - to_read > 0; - - bcm53xxspi_buf_read(b53spi, buf, to_read, cont); - left -= to_read; - buf += to_read; - } - } - - return 0; -} - -static int bcm53xxspi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) -{ - struct bcm53xxspi *b53spi = spi_master_get_devdata(spi->master); - int ret = 0; - - if (msg->from + msg->len > BCM53XXSPI_FLASH_WINDOW) - return -EINVAL; - - bcm53xxspi_enable_bspi(b53spi); - memcpy_fromio(msg->buf, b53spi->mmio_base + msg->from, msg->len); - msg->retlen = msg->len; - - return ret; -} - -/************************************************** - * BCMA - **************************************************/ - -static const struct bcma_device_id bcm53xxspi_bcma_tbl[] = { - BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_QSPI, BCMA_ANY_REV, BCMA_ANY_CLASS), - {}, -}; -MODULE_DEVICE_TABLE(bcma, bcm53xxspi_bcma_tbl); - -static int bcm53xxspi_bcma_probe(struct bcma_device *core) -{ - struct device *dev = &core->dev; - struct bcm53xxspi *b53spi; - struct spi_master *master; - int err; - - if (core->bus->drv_cc.core->id.rev != 42) { - pr_err("SPI on SoC with unsupported ChipCommon rev\n"); - return -ENOTSUPP; - } - - master = spi_alloc_master(dev, sizeof(*b53spi)); - if (!master) - return -ENOMEM; - - b53spi = spi_master_get_devdata(master); - b53spi->master = master; - b53spi->core = core; - - if (core->addr_s[0]) - b53spi->mmio_base = devm_ioremap(dev, core->addr_s[0], - BCM53XXSPI_FLASH_WINDOW); - b53spi->bspi = true; - bcm53xxspi_disable_bspi(b53spi); - - master->dev.of_node = dev->of_node; - master->transfer_one = bcm53xxspi_transfer_one; - if (b53spi->mmio_base) - master->spi_flash_read = bcm53xxspi_flash_read; - - bcma_set_drvdata(core, b53spi); - - err = devm_spi_register_master(dev, master); - if (err) { - spi_master_put(master); - bcma_set_drvdata(core, NULL); - return err; - } - - return 0; -} - -static struct bcma_driver bcm53xxspi_bcma_driver = { - .name = KBUILD_MODNAME, - .id_table = bcm53xxspi_bcma_tbl, - .probe = bcm53xxspi_bcma_probe, -}; - -/************************************************** - * Init & exit - **************************************************/ - -static int __init bcm53xxspi_module_init(void) -{ - int err = 0; - - err = bcma_driver_register(&bcm53xxspi_bcma_driver); - if (err) - pr_err("Failed to register bcma driver: %d\n", err); - - return err; -} - -static void __exit bcm53xxspi_module_exit(void) -{ - bcma_driver_unregister(&bcm53xxspi_bcma_driver); -} - -module_init(bcm53xxspi_module_init); -module_exit(bcm53xxspi_module_exit); - -MODULE_DESCRIPTION("Broadcom BCM53xx SPI Controller driver"); -MODULE_AUTHOR("RafaÅ‚ MiÅ‚ecki <zajec5@gmail.com>"); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/spi/spi-bcm53xx.h b/drivers/spi/spi-bcm53xx.h deleted file mode 100644 index 03e3442086ec..000000000000 --- a/drivers/spi/spi-bcm53xx.h +++ /dev/null @@ -1,73 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef SPI_BCM53XX_H -#define SPI_BCM53XX_H - -#define B53SPI_BSPI_REVISION_ID 0x000 -#define B53SPI_BSPI_SCRATCH 0x004 -#define B53SPI_BSPI_MAST_N_BOOT_CTRL 0x008 -#define B53SPI_BSPI_BUSY_STATUS 0x00c -#define B53SPI_BSPI_INTR_STATUS 0x010 -#define B53SPI_BSPI_B0_STATUS 0x014 -#define B53SPI_BSPI_B0_CTRL 0x018 -#define B53SPI_BSPI_B1_STATUS 0x01c -#define B53SPI_BSPI_B1_CTRL 0x020 -#define B53SPI_BSPI_STRAP_OVERRIDE_CTRL 0x024 -#define B53SPI_BSPI_FLEX_MODE_ENABLE 0x028 -#define B53SPI_BSPI_BITS_PER_CYCLE 0x02c -#define B53SPI_BSPI_BITS_PER_PHASE 0x030 -#define B53SPI_BSPI_CMD_AND_MODE_BYTE 0x034 -#define B53SPI_BSPI_BSPI_FLASH_UPPER_ADDR_BYTE 0x038 -#define B53SPI_BSPI_BSPI_XOR_VALUE 0x03c -#define B53SPI_BSPI_BSPI_XOR_ENABLE 0x040 -#define B53SPI_BSPI_BSPI_PIO_MODE_ENABLE 0x044 -#define B53SPI_BSPI_BSPI_PIO_IODIR 0x048 -#define B53SPI_BSPI_BSPI_PIO_DATA 0x04c - -/* RAF */ -#define B53SPI_RAF_START_ADDR 0x100 -#define B53SPI_RAF_NUM_WORDS 0x104 -#define B53SPI_RAF_CTRL 0x108 -#define B53SPI_RAF_FULLNESS 0x10c -#define B53SPI_RAF_WATERMARK 0x110 -#define B53SPI_RAF_STATUS 0x114 -#define B53SPI_RAF_READ_DATA 0x118 -#define B53SPI_RAF_WORD_CNT 0x11c -#define B53SPI_RAF_CURR_ADDR 0x120 - -/* MSPI */ -#define B53SPI_MSPI_SPCR0_LSB 0x200 -#define B53SPI_MSPI_SPCR0_MSB 0x204 -#define B53SPI_MSPI_SPCR1_LSB 0x208 -#define B53SPI_MSPI_SPCR1_MSB 0x20c -#define B53SPI_MSPI_NEWQP 0x210 -#define B53SPI_MSPI_ENDQP 0x214 -#define B53SPI_MSPI_SPCR2 0x218 -#define B53SPI_MSPI_SPCR2_SPE 0x00000040 -#define B53SPI_MSPI_SPCR2_CONT_AFTER_CMD 0x00000080 -#define B53SPI_MSPI_MSPI_STATUS 0x220 -#define B53SPI_MSPI_MSPI_STATUS_SPIF 0x00000001 -#define B53SPI_MSPI_CPTQP 0x224 -#define B53SPI_MSPI_TXRAM 0x240 /* 32 registers, up to 0x2b8 */ -#define B53SPI_MSPI_RXRAM 0x2c0 /* 32 registers, up to 0x33c */ -#define B53SPI_MSPI_CDRAM 0x340 /* 16 registers, up to 0x37c */ -#define B53SPI_CDRAM_PCS_PCS0 0x00000001 -#define B53SPI_CDRAM_PCS_PCS1 0x00000002 -#define B53SPI_CDRAM_PCS_PCS2 0x00000004 -#define B53SPI_CDRAM_PCS_PCS3 0x00000008 -#define B53SPI_CDRAM_PCS_DISABLE_ALL 0x0000000f -#define B53SPI_CDRAM_PCS_DSCK 0x00000010 -#define B53SPI_CDRAM_BITSE 0x00000040 -#define B53SPI_CDRAM_CONT 0x00000080 -#define B53SPI_MSPI_WRITE_LOCK 0x380 -#define B53SPI_MSPI_DISABLE_FLUSH_GEN 0x384 - -/* Interrupt */ -#define B53SPI_INTR_RAF_LR_FULLNESS_REACHED 0x3a0 -#define B53SPI_INTR_RAF_LR_TRUNCATED 0x3a4 -#define B53SPI_INTR_RAF_LR_IMPATIENT 0x3a8 -#define B53SPI_INTR_RAF_LR_SESSION_DONE 0x3ac -#define B53SPI_INTR_RAF_LR_OVERREAD 0x3b0 -#define B53SPI_INTR_MSPI_DONE 0x3b4 -#define B53SPI_INTR_MSPI_HALT_SET_TRANSACTION_DONE 0x3b8 - -#endif /* SPI_BCM53XX_H */ diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c index cbcba614b253..c23849f7aa7b 100644 --- a/drivers/spi/spi-bcm63xx-hsspi.c +++ b/drivers/spi/spi-bcm63xx-hsspi.c @@ -352,22 +352,31 @@ static int bcm63xx_hsspi_probe(struct platform_device *pdev) if (IS_ERR(clk)) return PTR_ERR(clk); + ret = clk_prepare_enable(clk); + if (ret) + return ret; + rate = clk_get_rate(clk); if (!rate) { struct clk *pll_clk = devm_clk_get(dev, "pll"); - if (IS_ERR(pll_clk)) - return PTR_ERR(pll_clk); + if (IS_ERR(pll_clk)) { + ret = PTR_ERR(pll_clk); + goto out_disable_clk; + } + + ret = clk_prepare_enable(pll_clk); + if (ret) + goto out_disable_clk; rate = clk_get_rate(pll_clk); - if (!rate) - return -EINVAL; + clk_disable_unprepare(pll_clk); + if (!rate) { + ret = -EINVAL; + goto out_disable_clk; + } } - ret = clk_prepare_enable(clk); - if (ret) - return ret; - master = spi_alloc_master(&pdev->dev, sizeof(*bs)); if (!master) { ret = -ENOMEM; diff --git a/drivers/spi/spi-cadence.c b/drivers/spi/spi-cadence.c index 4a001634023e..f3dad6fcdc35 100644 --- a/drivers/spi/spi-cadence.c +++ b/drivers/spi/spi-cadence.c @@ -694,8 +694,7 @@ static int cdns_spi_remove(struct platform_device *pdev) */ static int __maybe_unused cdns_spi_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); return spi_master_suspend(master); } @@ -710,8 +709,7 @@ static int __maybe_unused cdns_spi_suspend(struct device *dev) */ static int __maybe_unused cdns_spi_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); struct cdns_spi *xspi = spi_master_get_devdata(master); cdns_spi_init_hw(xspi); diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index cb3c73007ca1..e6d5cc6ab108 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -1,19 +1,8 @@ -/* - * Freescale i.MX7ULP LPSPI driver - * - * Copyright 2016 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 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. - * - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// Freescale i.MX7ULP LPSPI driver +// +// Copyright 2016 Freescale Semiconductor, Inc. #include <linux/clk.h> #include <linux/completion.h> diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index a056ee88a960..866246f21041 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -1,22 +1,6 @@ -/* - * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright (C) 2008 Juergen Beisert - * - * 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 - * 51 Franklin Street, Fifth Floor - * Boston, MA 02110-1301, USA. - */ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. +// Copyright (C) 2008 Juergen Beisert #include <linux/clk.h> #include <linux/completion.h> diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c new file mode 100644 index 000000000000..990770dfa5cf --- /dev/null +++ b/drivers/spi/spi-mem.c @@ -0,0 +1,410 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Exceet Electronics GmbH + * Copyright (C) 2018 Bootlin + * + * Author: Boris Brezillon <boris.brezillon@bootlin.com> + */ +#include <linux/dmaengine.h> +#include <linux/pm_runtime.h> +#include <linux/spi/spi.h> +#include <linux/spi/spi-mem.h> + +#include "internals.h" + +/** + * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a + * memory operation + * @ctlr: the SPI controller requesting this dma_map() + * @op: the memory operation containing the buffer to map + * @sgt: a pointer to a non-initialized sg_table that will be filled by this + * function + * + * Some controllers might want to do DMA on the data buffer embedded in @op. + * This helper prepares everything for you and provides a ready-to-use + * sg_table. This function is not intended to be called from spi drivers. + * Only SPI controller drivers should use it. + * Note that the caller must ensure the memory region pointed by + * op->data.buf.{in,out} is DMA-able before calling this function. + * + * Return: 0 in case of success, a negative error code otherwise. + */ +int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr, + const struct spi_mem_op *op, + struct sg_table *sgt) +{ + struct device *dmadev; + + if (!op->data.nbytes) + return -EINVAL; + + if (op->data.dir == SPI_MEM_DATA_OUT && ctlr->dma_tx) + dmadev = ctlr->dma_tx->device->dev; + else if (op->data.dir == SPI_MEM_DATA_IN && ctlr->dma_rx) + dmadev = ctlr->dma_rx->device->dev; + else + dmadev = ctlr->dev.parent; + + if (!dmadev) + return -EINVAL; + + return spi_map_buf(ctlr, dmadev, sgt, op->data.buf.in, op->data.nbytes, + op->data.dir == SPI_MEM_DATA_IN ? + DMA_FROM_DEVICE : DMA_TO_DEVICE); +} +EXPORT_SYMBOL_GPL(spi_controller_dma_map_mem_op_data); + +/** + * spi_controller_dma_unmap_mem_op_data() - DMA-unmap the buffer attached to a + * memory operation + * @ctlr: the SPI controller requesting this dma_unmap() + * @op: the memory operation containing the buffer to unmap + * @sgt: a pointer to an sg_table previously initialized by + * spi_controller_dma_map_mem_op_data() + * + * Some controllers might want to do DMA on the data buffer embedded in @op. + * This helper prepares things so that the CPU can access the + * op->data.buf.{in,out} buffer again. + * + * This function is not intended to be called from SPI drivers. Only SPI + * controller drivers should use it. + * + * This function should be called after the DMA operation has finished and is + * only valid if the previous spi_controller_dma_map_mem_op_data() call + * returned 0. + * + * Return: 0 in case of success, a negative error code otherwise. + */ +void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, + const struct spi_mem_op *op, + struct sg_table *sgt) +{ + struct device *dmadev; + + if (!op->data.nbytes) + return; + + if (op->data.dir == SPI_MEM_DATA_OUT && ctlr->dma_tx) + dmadev = ctlr->dma_tx->device->dev; + else if (op->data.dir == SPI_MEM_DATA_IN && ctlr->dma_rx) + dmadev = ctlr->dma_rx->device->dev; + else + dmadev = ctlr->dev.parent; + + spi_unmap_buf(ctlr, dmadev, sgt, + op->data.dir == SPI_MEM_DATA_IN ? + DMA_FROM_DEVICE : DMA_TO_DEVICE); +} +EXPORT_SYMBOL_GPL(spi_controller_dma_unmap_mem_op_data); + +static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) +{ + u32 mode = mem->spi->mode; + + switch (buswidth) { + case 1: + return 0; + + case 2: + if ((tx && (mode & (SPI_TX_DUAL | SPI_TX_QUAD))) || + (!tx && (mode & (SPI_RX_DUAL | SPI_RX_QUAD)))) + return 0; + + break; + + case 4: + if ((tx && (mode & SPI_TX_QUAD)) || + (!tx && (mode & SPI_RX_QUAD))) + return 0; + + break; + + default: + break; + } + + return -ENOTSUPP; +} + +static bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op) +{ + if (spi_check_buswidth_req(mem, op->cmd.buswidth, true)) + return false; + + if (op->addr.nbytes && + spi_check_buswidth_req(mem, op->addr.buswidth, true)) + return false; + + if (op->dummy.nbytes && + spi_check_buswidth_req(mem, op->dummy.buswidth, true)) + return false; + + if (op->data.nbytes && + spi_check_buswidth_req(mem, op->data.buswidth, + op->data.dir == SPI_MEM_DATA_OUT)) + return false; + + return true; +} +EXPORT_SYMBOL_GPL(spi_mem_default_supports_op); + +/** + * spi_mem_supports_op() - Check if a memory device and the controller it is + * connected to support a specific memory operation + * @mem: the SPI memory + * @op: the memory operation to check + * + * Some controllers are only supporting Single or Dual IOs, others might only + * support specific opcodes, or it can even be that the controller and device + * both support Quad IOs but the hardware prevents you from using it because + * only 2 IO lines are connected. + * + * This function checks whether a specific operation is supported. + * + * Return: true if @op is supported, false otherwise. + */ +bool spi_mem_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) +{ + struct spi_controller *ctlr = mem->spi->controller; + + if (ctlr->mem_ops && ctlr->mem_ops->supports_op) + return ctlr->mem_ops->supports_op(mem, op); + + return spi_mem_default_supports_op(mem, op); +} +EXPORT_SYMBOL_GPL(spi_mem_supports_op); + +/** + * spi_mem_exec_op() - Execute a memory operation + * @mem: the SPI memory + * @op: the memory operation to execute + * + * Executes a memory operation. + * + * This function first checks that @op is supported and then tries to execute + * it. + * + * Return: 0 in case of success, a negative error code otherwise. + */ +int spi_mem_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) +{ + unsigned int tmpbufsize, xferpos = 0, totalxferlen = 0; + struct spi_controller *ctlr = mem->spi->controller; + struct spi_transfer xfers[4] = { }; + struct spi_message msg; + u8 *tmpbuf; + int ret; + + if (!spi_mem_supports_op(mem, op)) + return -ENOTSUPP; + + if (ctlr->mem_ops) { + /* + * Flush the message queue before executing our SPI memory + * operation to prevent preemption of regular SPI transfers. + */ + spi_flush_queue(ctlr); + + if (ctlr->auto_runtime_pm) { + ret = pm_runtime_get_sync(ctlr->dev.parent); + if (ret < 0) { + dev_err(&ctlr->dev, + "Failed to power device: %d\n", + ret); + return ret; + } + } + + mutex_lock(&ctlr->bus_lock_mutex); + mutex_lock(&ctlr->io_mutex); + ret = ctlr->mem_ops->exec_op(mem, op); + mutex_unlock(&ctlr->io_mutex); + mutex_unlock(&ctlr->bus_lock_mutex); + + if (ctlr->auto_runtime_pm) + pm_runtime_put(ctlr->dev.parent); + + /* + * Some controllers only optimize specific paths (typically the + * read path) and expect the core to use the regular SPI + * interface in other cases. + */ + if (!ret || ret != -ENOTSUPP) + return ret; + } + + tmpbufsize = sizeof(op->cmd.opcode) + op->addr.nbytes + + op->dummy.nbytes; + + /* + * Allocate a buffer to transmit the CMD, ADDR cycles with kmalloc() so + * we're guaranteed that this buffer is DMA-able, as required by the + * SPI layer. + */ + tmpbuf = kzalloc(tmpbufsize, GFP_KERNEL | GFP_DMA); + if (!tmpbuf) + return -ENOMEM; + + spi_message_init(&msg); + + tmpbuf[0] = op->cmd.opcode; + xfers[xferpos].tx_buf = tmpbuf; + xfers[xferpos].len = sizeof(op->cmd.opcode); + xfers[xferpos].tx_nbits = op->cmd.buswidth; + spi_message_add_tail(&xfers[xferpos], &msg); + xferpos++; + totalxferlen++; + + if (op->addr.nbytes) { + int i; + + for (i = 0; i < op->addr.nbytes; i++) + tmpbuf[i + 1] = op->addr.val >> + (8 * (op->addr.nbytes - i - 1)); + + xfers[xferpos].tx_buf = tmpbuf + 1; + xfers[xferpos].len = op->addr.nbytes; + xfers[xferpos].tx_nbits = op->addr.buswidth; + spi_message_add_tail(&xfers[xferpos], &msg); + xferpos++; + totalxferlen += op->addr.nbytes; + } + + if (op->dummy.nbytes) { + memset(tmpbuf + op->addr.nbytes + 1, 0xff, op->dummy.nbytes); + xfers[xferpos].tx_buf = tmpbuf + op->addr.nbytes + 1; + xfers[xferpos].len = op->dummy.nbytes; + xfers[xferpos].tx_nbits = op->dummy.buswidth; + spi_message_add_tail(&xfers[xferpos], &msg); + xferpos++; + totalxferlen += op->dummy.nbytes; + } + + if (op->data.nbytes) { + if (op->data.dir == SPI_MEM_DATA_IN) { + xfers[xferpos].rx_buf = op->data.buf.in; + xfers[xferpos].rx_nbits = op->data.buswidth; + } else { + xfers[xferpos].tx_buf = op->data.buf.out; + xfers[xferpos].tx_nbits = op->data.buswidth; + } + + xfers[xferpos].len = op->data.nbytes; + spi_message_add_tail(&xfers[xferpos], &msg); + xferpos++; + totalxferlen += op->data.nbytes; + } + + ret = spi_sync(mem->spi, &msg); + + kfree(tmpbuf); + + if (ret) + return ret; + + if (msg.actual_length != totalxferlen) + return -EIO; + + return 0; +} +EXPORT_SYMBOL_GPL(spi_mem_exec_op); + +/** + * spi_mem_adjust_op_size() - Adjust the data size of a SPI mem operation to + * match controller limitations + * @mem: the SPI memory + * @op: the operation to adjust + * + * Some controllers have FIFO limitations and must split a data transfer + * operation into multiple ones, others require a specific alignment for + * optimized accesses. This function allows SPI mem drivers to split a single + * operation into multiple sub-operations when required. + * + * Return: a negative error code if the controller can't properly adjust @op, + * 0 otherwise. Note that @op->data.nbytes will be updated if @op + * can't be handled in a single step. + */ +int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op) +{ + struct spi_controller *ctlr = mem->spi->controller; + + if (ctlr->mem_ops && ctlr->mem_ops->adjust_op_size) + return ctlr->mem_ops->adjust_op_size(mem, op); + + return 0; +} +EXPORT_SYMBOL_GPL(spi_mem_adjust_op_size); + +static inline struct spi_mem_driver *to_spi_mem_drv(struct device_driver *drv) +{ + return container_of(drv, struct spi_mem_driver, spidrv.driver); +} + +static int spi_mem_probe(struct spi_device *spi) +{ + struct spi_mem_driver *memdrv = to_spi_mem_drv(spi->dev.driver); + struct spi_mem *mem; + + mem = devm_kzalloc(&spi->dev, sizeof(*mem), GFP_KERNEL); + if (!mem) + return -ENOMEM; + + mem->spi = spi; + spi_set_drvdata(spi, mem); + + return memdrv->probe(mem); +} + +static int spi_mem_remove(struct spi_device *spi) +{ + struct spi_mem_driver *memdrv = to_spi_mem_drv(spi->dev.driver); + struct spi_mem *mem = spi_get_drvdata(spi); + + if (memdrv->remove) + return memdrv->remove(mem); + + return 0; +} + +static void spi_mem_shutdown(struct spi_device *spi) +{ + struct spi_mem_driver *memdrv = to_spi_mem_drv(spi->dev.driver); + struct spi_mem *mem = spi_get_drvdata(spi); + + if (memdrv->shutdown) + memdrv->shutdown(mem); +} + +/** + * spi_mem_driver_register_with_owner() - Register a SPI memory driver + * @memdrv: the SPI memory driver to register + * @owner: the owner of this driver + * + * Registers a SPI memory driver. + * + * Return: 0 in case of success, a negative error core otherwise. + */ + +int spi_mem_driver_register_with_owner(struct spi_mem_driver *memdrv, + struct module *owner) +{ + memdrv->spidrv.probe = spi_mem_probe; + memdrv->spidrv.remove = spi_mem_remove; + memdrv->spidrv.shutdown = spi_mem_shutdown; + + return __spi_register_driver(owner, &memdrv->spidrv); +} +EXPORT_SYMBOL_GPL(spi_mem_driver_register_with_owner); + +/** + * spi_mem_driver_unregister_with_owner() - Unregister a SPI memory driver + * @memdrv: the SPI memory driver to unregister + * + * Unregisters a SPI memory driver. + */ +void spi_mem_driver_unregister(struct spi_mem_driver *memdrv) +{ + spi_unregister_driver(&memdrv->spidrv); +} +EXPORT_SYMBOL_GPL(spi_mem_driver_unregister); diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c index 5c82910e3480..7fe4488ace57 100644 --- a/drivers/spi/spi-meson-spicc.c +++ b/drivers/spi/spi-meson-spicc.c @@ -574,10 +574,15 @@ static int meson_spicc_probe(struct platform_device *pdev) master->max_speed_hz = rate >> 2; ret = devm_spi_register_master(&pdev->dev, master); - if (!ret) - return 0; + if (ret) { + dev_err(&pdev->dev, "spi master registration failed\n"); + goto out_clk; + } - dev_err(&pdev->dev, "spi master registration failed\n"); + return 0; + +out_clk: + clk_disable_unprepare(spicc->core); out_master: spi_master_put(master); diff --git a/drivers/spi/spi-mpc52xx.c b/drivers/spi/spi-mpc52xx.c index e8b59ce4dc3a..0e55784a3ad9 100644 --- a/drivers/spi/spi-mpc52xx.c +++ b/drivers/spi/spi-mpc52xx.c @@ -447,7 +447,7 @@ static int mpc52xx_spi_probe(struct platform_device *op) for (i = 0; i < ms->gpio_cs_count; i++) { gpio_cs = of_get_gpio(op->dev.of_node, i); - if (gpio_cs < 0) { + if (!gpio_is_valid(gpio_cs)) { dev_err(&op->dev, "could not parse the gpio field in oftree\n"); rc = -ENODEV; diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c index 3d216b950b41..6ac95a2a21ce 100644 --- a/drivers/spi/spi-mxs.c +++ b/drivers/spi/spi-mxs.c @@ -1,32 +1,22 @@ -/* - * Freescale MXS SPI master driver - * - * Copyright 2012 DENX Software Engineering, GmbH. - * Copyright 2012 Freescale Semiconductor, Inc. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - * - * Rework and transition to new API by: - * Marek Vasut <marex@denx.de> - * - * Based on previous attempt by: - * Fabio Estevam <fabio.estevam@freescale.com> - * - * Based on code from U-Boot bootloader by: - * Marek Vasut <marex@denx.de> - * - * Based on spi-stmp.c, which is: - * Author: Dmitry Pervushin <dimka@embeddedalley.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. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// Freescale MXS SPI master driver +// +// Copyright 2012 DENX Software Engineering, GmbH. +// Copyright 2012 Freescale Semiconductor, Inc. +// Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. +// +// Rework and transition to new API by: +// Marek Vasut <marex@denx.de> +// +// Based on previous attempt by: +// Fabio Estevam <fabio.estevam@freescale.com> +// +// Based on code from U-Boot bootloader by: +// Marek Vasut <marex@denx.de> +// +// Based on spi-stmp.c, which is: +// Author: Dmitry Pervushin <dimka@embeddedalley.com> #include <linux/kernel.h> #include <linux/ioport.h> diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 9bf64e6eca9b..6c628a54e946 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -255,6 +255,7 @@ static void omap2_mcspi_set_cs(struct spi_device *spi, bool enable) if (spi->controller_state) { int err = pm_runtime_get_sync(mcspi->dev); if (err < 0) { + pm_runtime_put_noidle(mcspi->dev); dev_err(mcspi->dev, "failed to get sync: %d\n", err); return; } @@ -350,20 +351,6 @@ disable_fifo: mcspi->fifo_depth = 0; } -static void omap2_mcspi_restore_ctx(struct omap2_mcspi *mcspi) -{ - struct spi_master *spi_cntrl = mcspi->master; - struct omap2_mcspi_regs *ctx = &mcspi->ctx; - struct omap2_mcspi_cs *cs; - - /* McSPI: context restore */ - mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_MODULCTRL, ctx->modulctrl); - mcspi_write_reg(spi_cntrl, OMAP2_MCSPI_WAKEUPENABLE, ctx->wakeupenable); - - list_for_each_entry(cs, &ctx->cs, node) - writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); -} - static int mcspi_wait_for_reg_bit(void __iomem *reg, unsigned long bit) { unsigned long timeout; @@ -1065,8 +1052,11 @@ static int omap2_mcspi_setup(struct spi_device *spi) } ret = pm_runtime_get_sync(mcspi->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(mcspi->dev); + return ret; + } ret = omap2_mcspi_setup_transfer(spi, NULL); pm_runtime_mark_last_busy(mcspi->dev); @@ -1284,8 +1274,11 @@ static int omap2_mcspi_master_setup(struct omap2_mcspi *mcspi) int ret = 0; ret = pm_runtime_get_sync(mcspi->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(mcspi->dev); + return ret; + } mcspi_write_reg(master, OMAP2_MCSPI_WAKEUPENABLE, OMAP2_MCSPI_WAKEUPENABLE_WKEN); @@ -1297,14 +1290,39 @@ static int omap2_mcspi_master_setup(struct omap2_mcspi *mcspi) return 0; } +/* + * When SPI wake up from off-mode, CS is in activate state. If it was in + * inactive state when driver was suspend, then force it to inactive state at + * wake up. + */ static int omap_mcspi_runtime_resume(struct device *dev) { - struct omap2_mcspi *mcspi; - struct spi_master *master; + struct spi_master *master = dev_get_drvdata(dev); + struct omap2_mcspi *mcspi = spi_master_get_devdata(master); + struct omap2_mcspi_regs *ctx = &mcspi->ctx; + struct omap2_mcspi_cs *cs; - master = dev_get_drvdata(dev); - mcspi = spi_master_get_devdata(master); - omap2_mcspi_restore_ctx(mcspi); + /* McSPI: context restore */ + mcspi_write_reg(master, OMAP2_MCSPI_MODULCTRL, ctx->modulctrl); + mcspi_write_reg(master, OMAP2_MCSPI_WAKEUPENABLE, ctx->wakeupenable); + + list_for_each_entry(cs, &ctx->cs, node) { + /* + * We need to toggle CS state for OMAP take this + * change in account. + */ + if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE) == 0) { + cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE; + writel_relaxed(cs->chconf0, + cs->base + OMAP2_MCSPI_CHCONF0); + cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE; + writel_relaxed(cs->chconf0, + cs->base + OMAP2_MCSPI_CHCONF0); + } else { + writel_relaxed(cs->chconf0, + cs->base + OMAP2_MCSPI_CHCONF0); + } + } return 0; } @@ -1447,50 +1465,33 @@ static int omap2_mcspi_remove(struct platform_device *pdev) MODULE_ALIAS("platform:omap2_mcspi"); #ifdef CONFIG_SUSPEND -/* - * When SPI wake up from off-mode, CS is in activate state. If it was in - * unactive state when driver was suspend, then force it to unactive state at - * wake up. - */ -static int omap2_mcspi_resume(struct device *dev) +static int omap2_mcspi_suspend_noirq(struct device *dev) { - struct spi_master *master = dev_get_drvdata(dev); - struct omap2_mcspi *mcspi = spi_master_get_devdata(master); - struct omap2_mcspi_regs *ctx = &mcspi->ctx; - struct omap2_mcspi_cs *cs; - - pm_runtime_get_sync(mcspi->dev); - list_for_each_entry(cs, &ctx->cs, node) { - if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE) == 0) { - /* - * We need to toggle CS state for OMAP take this - * change in account. - */ - cs->chconf0 |= OMAP2_MCSPI_CHCONF_FORCE; - writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); - cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE; - writel_relaxed(cs->chconf0, cs->base + OMAP2_MCSPI_CHCONF0); - } - } - pm_runtime_mark_last_busy(mcspi->dev); - pm_runtime_put_autosuspend(mcspi->dev); - - return pinctrl_pm_select_default_state(dev); + return pinctrl_pm_select_sleep_state(dev); } -static int omap2_mcspi_suspend(struct device *dev) +static int omap2_mcspi_resume_noirq(struct device *dev) { - return pinctrl_pm_select_sleep_state(dev); + struct spi_master *master = dev_get_drvdata(dev); + struct omap2_mcspi *mcspi = spi_master_get_devdata(master); + int error; + + error = pinctrl_pm_select_default_state(dev); + if (error) + dev_warn(mcspi->dev, "%s: failed to set pins: %i\n", + __func__, error); + + return 0; } #else -#define omap2_mcspi_suspend NULL -#define omap2_mcspi_resume NULL +#define omap2_mcspi_suspend_noirq NULL +#define omap2_mcspi_resume_noirq NULL #endif static const struct dev_pm_ops omap2_mcspi_pm_ops = { - .resume = omap2_mcspi_resume, - .suspend = omap2_mcspi_suspend, + .suspend_noirq = omap2_mcspi_suspend_noirq, + .resume_noirq = omap2_mcspi_resume_noirq, .runtime_resume = omap_mcspi_runtime_resume, }; diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c index 3d7f66080c57..2fa7f4b43492 100644 --- a/drivers/spi/spi-pxa2xx-dma.c +++ b/drivers/spi/spi-pxa2xx-dma.c @@ -51,19 +51,15 @@ static void pxa2xx_spi_dma_transfer_complete(struct driver_data *drv_data, if (!pxa25x_ssp_comp(drv_data)) pxa2xx_spi_write(drv_data, SSTO, 0); - if (!error) { - msg->actual_length += drv_data->len; - msg->state = pxa2xx_spi_next_transfer(drv_data); - } else { + if (error) { /* In case we got an error we disable the SSP now */ pxa2xx_spi_write(drv_data, SSCR0, pxa2xx_spi_read(drv_data, SSCR0) & ~SSCR0_SSE); - - msg->state = ERROR_STATE; + msg->status = -EIO; } - tasklet_schedule(&drv_data->pump_transfers); + spi_finalize_current_transfer(drv_data->master); } } @@ -74,11 +70,11 @@ static void pxa2xx_spi_dma_callback(void *data) static struct dma_async_tx_descriptor * pxa2xx_spi_dma_prepare_one(struct driver_data *drv_data, - enum dma_transfer_direction dir) + enum dma_transfer_direction dir, + struct spi_transfer *xfer) { struct chip_data *chip = spi_get_ctldata(drv_data->master->cur_msg->spi); - struct spi_transfer *xfer = drv_data->cur_transfer; enum dma_slave_buswidth width; struct dma_slave_config cfg; struct dma_chan *chan; @@ -144,12 +140,13 @@ irqreturn_t pxa2xx_spi_dma_transfer(struct driver_data *drv_data) return IRQ_NONE; } -int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, u32 dma_burst) +int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, + struct spi_transfer *xfer) { struct dma_async_tx_descriptor *tx_desc, *rx_desc; int err; - tx_desc = pxa2xx_spi_dma_prepare_one(drv_data, DMA_MEM_TO_DEV); + tx_desc = pxa2xx_spi_dma_prepare_one(drv_data, DMA_MEM_TO_DEV, xfer); if (!tx_desc) { dev_err(&drv_data->pdev->dev, "failed to get DMA TX descriptor\n"); @@ -157,7 +154,7 @@ int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, u32 dma_burst) goto err_tx; } - rx_desc = pxa2xx_spi_dma_prepare_one(drv_data, DMA_DEV_TO_MEM); + rx_desc = pxa2xx_spi_dma_prepare_one(drv_data, DMA_DEV_TO_MEM, xfer); if (!rx_desc) { dev_err(&drv_data->pdev->dev, "failed to get DMA RX descriptor\n"); @@ -187,6 +184,13 @@ void pxa2xx_spi_dma_start(struct driver_data *drv_data) atomic_set(&drv_data->dma_running, 1); } +void pxa2xx_spi_dma_stop(struct driver_data *drv_data) +{ + atomic_set(&drv_data->dma_running, 0); + dmaengine_terminate_sync(drv_data->master->dma_rx); + dmaengine_terminate_sync(drv_data->master->dma_tx); +} + int pxa2xx_spi_dma_setup(struct driver_data *drv_data) { struct pxa2xx_spi_master *pdata = drv_data->master_info; diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 82dcb88fcfba..0b2d60d30f69 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -340,9 +340,11 @@ static void lpss_ssp_setup(struct driver_data *drv_data) } } -static void lpss_ssp_select_cs(struct driver_data *drv_data, +static void lpss_ssp_select_cs(struct spi_device *spi, const struct lpss_config *config) { + struct driver_data *drv_data = + spi_controller_get_devdata(spi->controller); u32 value, cs; if (!config->cs_sel_mask) @@ -350,7 +352,7 @@ static void lpss_ssp_select_cs(struct driver_data *drv_data, value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl); - cs = drv_data->master->cur_msg->spi->chip_select; + cs = spi->chip_select; cs <<= config->cs_sel_shift; if (cs != (value & config->cs_sel_mask)) { /* @@ -369,15 +371,17 @@ static void lpss_ssp_select_cs(struct driver_data *drv_data, } } -static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable) +static void lpss_ssp_cs_control(struct spi_device *spi, bool enable) { + struct driver_data *drv_data = + spi_controller_get_devdata(spi->controller); const struct lpss_config *config; u32 value; config = lpss_get_config(drv_data); if (enable) - lpss_ssp_select_cs(drv_data, config); + lpss_ssp_select_cs(spi, config); value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl); if (enable) @@ -387,10 +391,11 @@ static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable) __lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value); } -static void cs_assert(struct driver_data *drv_data) +static void cs_assert(struct spi_device *spi) { - struct chip_data *chip = - spi_get_ctldata(drv_data->master->cur_msg->spi); + struct chip_data *chip = spi_get_ctldata(spi); + struct driver_data *drv_data = + spi_controller_get_devdata(spi->controller); if (drv_data->ssp_type == CE4100_SSP) { pxa2xx_spi_write(drv_data, SSSR, chip->frm); @@ -408,13 +413,14 @@ static void cs_assert(struct driver_data *drv_data) } if (is_lpss_ssp(drv_data)) - lpss_ssp_cs_control(drv_data, true); + lpss_ssp_cs_control(spi, true); } -static void cs_deassert(struct driver_data *drv_data) +static void cs_deassert(struct spi_device *spi) { - struct chip_data *chip = - spi_get_ctldata(drv_data->master->cur_msg->spi); + struct chip_data *chip = spi_get_ctldata(spi); + struct driver_data *drv_data = + spi_controller_get_devdata(spi->controller); unsigned long timeout; if (drv_data->ssp_type == CE4100_SSP) @@ -437,7 +443,15 @@ static void cs_deassert(struct driver_data *drv_data) } if (is_lpss_ssp(drv_data)) - lpss_ssp_cs_control(drv_data, false); + lpss_ssp_cs_control(spi, false); +} + +static void pxa2xx_spi_set_cs(struct spi_device *spi, bool level) +{ + if (level) + cs_deassert(spi); + else + cs_assert(spi); } int pxa2xx_spi_flush(struct driver_data *drv_data) @@ -549,70 +563,6 @@ static int u32_reader(struct driver_data *drv_data) return drv_data->rx == drv_data->rx_end; } -void *pxa2xx_spi_next_transfer(struct driver_data *drv_data) -{ - struct spi_message *msg = drv_data->master->cur_msg; - struct spi_transfer *trans = drv_data->cur_transfer; - - /* Move to next transfer */ - if (trans->transfer_list.next != &msg->transfers) { - drv_data->cur_transfer = - list_entry(trans->transfer_list.next, - struct spi_transfer, - transfer_list); - return RUNNING_STATE; - } else - return DONE_STATE; -} - -/* caller already set message->status; dma and pio irqs are blocked */ -static void giveback(struct driver_data *drv_data) -{ - struct spi_transfer* last_transfer; - struct spi_message *msg; - - msg = drv_data->master->cur_msg; - drv_data->cur_transfer = NULL; - - last_transfer = list_last_entry(&msg->transfers, struct spi_transfer, - transfer_list); - - /* Delay if requested before any change in chip select */ - if (last_transfer->delay_usecs) - udelay(last_transfer->delay_usecs); - - /* Drop chip select UNLESS cs_change is true or we are returning - * a message with an error, or next message is for another chip - */ - if (!last_transfer->cs_change) - cs_deassert(drv_data); - else { - struct spi_message *next_msg; - - /* Holding of cs was hinted, but we need to make sure - * the next message is for the same chip. Don't waste - * time with the following tests unless this was hinted. - * - * We cannot postpone this until pump_messages, because - * after calling msg->complete (below) the driver that - * sent the current message could be unloaded, which - * could invalidate the cs_control() callback... - */ - - /* get a pointer to the next message, if any */ - next_msg = spi_get_next_queued_message(drv_data->master); - - /* see if the next and current messages point - * to the same chip - */ - if ((next_msg && next_msg->spi != msg->spi) || - msg->state == ERROR_STATE) - cs_deassert(drv_data); - } - - spi_finalize_current_message(drv_data->master); -} - static void reset_sccr1(struct driver_data *drv_data) { struct chip_data *chip = @@ -648,8 +598,8 @@ static void int_error_stop(struct driver_data *drv_data, const char* msg) dev_err(&drv_data->pdev->dev, "%s\n", msg); - drv_data->master->cur_msg->state = ERROR_STATE; - tasklet_schedule(&drv_data->pump_transfers); + drv_data->master->cur_msg->status = -EIO; + spi_finalize_current_transfer(drv_data->master); } static void int_transfer_complete(struct driver_data *drv_data) @@ -660,19 +610,7 @@ static void int_transfer_complete(struct driver_data *drv_data) if (!pxa25x_ssp_comp(drv_data)) pxa2xx_spi_write(drv_data, SSTO, 0); - /* Update total byte transferred return count actual bytes read */ - drv_data->master->cur_msg->actual_length += drv_data->len - - (drv_data->rx_end - drv_data->rx); - - /* Transfer delays and chip select release are - * handled in pump_transfers or giveback - */ - - /* Move to next transfer */ - drv_data->master->cur_msg->state = pxa2xx_spi_next_transfer(drv_data); - - /* Schedule transfer tasklet */ - tasklet_schedule(&drv_data->pump_transfers); + spi_finalize_current_transfer(drv_data->master); } static irqreturn_t interrupt_transfer(struct driver_data *drv_data) @@ -973,17 +911,16 @@ static bool pxa2xx_spi_can_dma(struct spi_controller *master, xfer->len >= chip->dma_burst_size; } -static void pump_transfers(unsigned long data) +static int pxa2xx_spi_transfer_one(struct spi_controller *master, + struct spi_device *spi, + struct spi_transfer *transfer) { - struct driver_data *drv_data = (struct driver_data *)data; - struct spi_controller *master = drv_data->master; + struct driver_data *drv_data = spi_controller_get_devdata(master); struct spi_message *message = master->cur_msg; struct chip_data *chip = spi_get_ctldata(message->spi); u32 dma_thresh = chip->dma_threshold; u32 dma_burst = chip->dma_burst_size; u32 change_mask = pxa2xx_spi_get_ssrc1_change_mask(drv_data); - struct spi_transfer *transfer; - struct spi_transfer *previous; u32 clk_div; u8 bits; u32 speed; @@ -992,36 +929,6 @@ static void pump_transfers(unsigned long data) int err; int dma_mapped; - /* Get current state information */ - transfer = drv_data->cur_transfer; - - /* Handle for abort */ - if (message->state == ERROR_STATE) { - message->status = -EIO; - giveback(drv_data); - return; - } - - /* Handle end of message */ - if (message->state == DONE_STATE) { - message->status = 0; - giveback(drv_data); - return; - } - - /* Delay if requested at end of transfer before CS change */ - if (message->state == RUNNING_STATE) { - previous = list_entry(transfer->transfer_list.prev, - struct spi_transfer, - transfer_list); - if (previous->delay_usecs) - udelay(previous->delay_usecs); - - /* Drop chip select only if cs_change is requested */ - if (previous->cs_change) - cs_deassert(drv_data); - } - /* Check if we can DMA this transfer */ if (transfer->len > MAX_DMA_LEN && chip->enable_dma) { @@ -1029,34 +936,27 @@ static void pump_transfers(unsigned long data) if (message->is_dma_mapped || transfer->rx_dma || transfer->tx_dma) { dev_err(&drv_data->pdev->dev, - "pump_transfers: mapped transfer length of " - "%u is greater than %d\n", + "Mapped transfer length of %u is greater than %d\n", transfer->len, MAX_DMA_LEN); - message->status = -EINVAL; - giveback(drv_data); - return; + return -EINVAL; } /* warn ... we force this to PIO mode */ dev_warn_ratelimited(&message->spi->dev, - "pump_transfers: DMA disabled for transfer length %ld " - "greater than %d\n", - (long)drv_data->len, MAX_DMA_LEN); + "DMA disabled for transfer length %ld greater than %d\n", + (long)transfer->len, MAX_DMA_LEN); } /* Setup the transfer state based on the type of transfer */ if (pxa2xx_spi_flush(drv_data) == 0) { - dev_err(&drv_data->pdev->dev, "pump_transfers: flush failed\n"); - message->status = -EIO; - giveback(drv_data); - return; + dev_err(&drv_data->pdev->dev, "Flush failed\n"); + return -EIO; } drv_data->n_bytes = chip->n_bytes; drv_data->tx = (void *)transfer->tx_buf; drv_data->tx_end = drv_data->tx + transfer->len; drv_data->rx = transfer->rx_buf; drv_data->rx_end = drv_data->rx + transfer->len; - drv_data->len = transfer->len; drv_data->write = drv_data->tx ? chip->write : null_writer; drv_data->read = drv_data->rx ? chip->read : null_reader; @@ -1095,11 +995,9 @@ static void pump_transfers(unsigned long data) bits, &dma_burst, &dma_thresh)) dev_warn_ratelimited(&message->spi->dev, - "pump_transfers: DMA burst size reduced to match bits_per_word\n"); + "DMA burst size reduced to match bits_per_word\n"); } - message->state = RUNNING_STATE; - dma_mapped = master->can_dma && master->can_dma(master, message->spi, transfer) && master->cur_msg_mapped; @@ -1108,12 +1006,9 @@ static void pump_transfers(unsigned long data) /* Ensure we have the correct interrupt handler */ drv_data->transfer_handler = pxa2xx_spi_dma_transfer; - err = pxa2xx_spi_dma_prepare(drv_data, dma_burst); - if (err) { - message->status = err; - giveback(drv_data); - return; - } + err = pxa2xx_spi_dma_prepare(drv_data, transfer); + if (err) + return err; /* Clear status and start DMA engine */ cr1 = chip->cr1 | dma_thresh | drv_data->dma_cr1; @@ -1175,27 +1070,40 @@ static void pump_transfers(unsigned long data) pxa2xx_spi_write(drv_data, SSTO, chip->timeout); } - cs_assert(drv_data); - - /* after chip select, release the data by enabling service - * requests and interrupts, without changing any mode bits */ + /* + * Release the data by enabling service requests and interrupts, + * without changing any mode bits + */ pxa2xx_spi_write(drv_data, SSCR1, cr1); + + return 1; } -static int pxa2xx_spi_transfer_one_message(struct spi_controller *master, - struct spi_message *msg) +static void pxa2xx_spi_handle_err(struct spi_controller *master, + struct spi_message *msg) { struct driver_data *drv_data = spi_controller_get_devdata(master); - /* Initial message state*/ - msg->state = START_STATE; - drv_data->cur_transfer = list_entry(msg->transfers.next, - struct spi_transfer, - transfer_list); + /* Disable the SSP */ + pxa2xx_spi_write(drv_data, SSCR0, + pxa2xx_spi_read(drv_data, SSCR0) & ~SSCR0_SSE); + /* Clear and disable interrupts and service requests */ + write_SSSR_CS(drv_data, drv_data->clear_sr); + pxa2xx_spi_write(drv_data, SSCR1, + pxa2xx_spi_read(drv_data, SSCR1) + & ~(drv_data->int_cr1 | drv_data->dma_cr1)); + if (!pxa25x_ssp_comp(drv_data)) + pxa2xx_spi_write(drv_data, SSTO, 0); - /* Mark as busy and launch transfers */ - tasklet_schedule(&drv_data->pump_transfers); - return 0; + /* + * Stop the DMA if running. Note DMA callback handler may have unset + * the dma_running already, which is fine as stopping is not needed + * then but we shouldn't rely this flag for anything else than + * stopping. For instance to differentiate between PIO and DMA + * transfers. + */ + if (atomic_read(&drv_data->dma_running)) + pxa2xx_spi_dma_stop(drv_data); } static int pxa2xx_spi_unprepare_transfer(struct spi_controller *master) @@ -1651,7 +1559,9 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->dma_alignment = DMA_ALIGNMENT; master->cleanup = cleanup; master->setup = setup; - master->transfer_one_message = pxa2xx_spi_transfer_one_message; + master->set_cs = pxa2xx_spi_set_cs; + master->transfer_one = pxa2xx_spi_transfer_one; + master->handle_err = pxa2xx_spi_handle_err; master->unprepare_transfer_hardware = pxa2xx_spi_unprepare_transfer; master->fw_translate_cs = pxa2xx_spi_fw_translate_cs; master->auto_runtime_pm = true; @@ -1702,7 +1612,9 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) } /* Enable SOC clock */ - clk_prepare_enable(ssp->clk); + status = clk_prepare_enable(ssp->clk); + if (status) + goto out_error_dma_irq_alloc; master->max_speed_hz = clk_get_rate(ssp->clk); @@ -1787,9 +1699,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) } } - tasklet_init(&drv_data->pump_transfers, pump_transfers, - (unsigned long)drv_data); - pm_runtime_set_autosuspend_delay(&pdev->dev, 50); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_set_active(&pdev->dev); @@ -1809,6 +1718,8 @@ out_error_clock_enabled: pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_disable_unprepare(ssp->clk); + +out_error_dma_irq_alloc: pxa2xx_spi_dma_release(drv_data); free_irq(ssp->irq, drv_data); @@ -1882,8 +1793,11 @@ static int pxa2xx_spi_resume(struct device *dev) int status; /* Enable the SSP clock */ - if (!pm_runtime_suspended(dev)) - clk_prepare_enable(ssp->clk); + if (!pm_runtime_suspended(dev)) { + status = clk_prepare_enable(ssp->clk); + if (status) + return status; + } /* Restore LPSS private register bits */ if (is_lpss_ssp(drv_data)) @@ -1912,9 +1826,10 @@ static int pxa2xx_spi_runtime_suspend(struct device *dev) static int pxa2xx_spi_runtime_resume(struct device *dev) { struct driver_data *drv_data = dev_get_drvdata(dev); + int status; - clk_prepare_enable(drv_data->ssp->clk); - return 0; + status = clk_prepare_enable(drv_data->ssp->clk); + return status; } #endif diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h index 0ae7defd3492..513c53aaeab2 100644 --- a/drivers/spi/spi-pxa2xx.h +++ b/drivers/spi/spi-pxa2xx.h @@ -46,15 +46,10 @@ struct driver_data { u32 clear_sr; u32 mask_sr; - /* Message Transfer pump */ - struct tasklet_struct pump_transfers; - /* DMA engine support */ atomic_t dma_running; - /* Current message transfer state info */ - struct spi_transfer *cur_transfer; - size_t len; + /* Current transfer state info */ void *tx; void *tx_end; void *rx; @@ -104,11 +99,6 @@ static inline void pxa2xx_spi_write(const struct driver_data *drv_data, __raw_writel(val, drv_data->ioaddr + reg); } -#define START_STATE ((void *)0) -#define RUNNING_STATE ((void *)1) -#define DONE_STATE ((void *)2) -#define ERROR_STATE ((void *)-1) - #define DMA_ALIGNMENT 8 static inline int pxa25x_ssp_comp(struct driver_data *drv_data) @@ -133,14 +123,15 @@ static inline void write_SSSR_CS(struct driver_data *drv_data, u32 val) } extern int pxa2xx_spi_flush(struct driver_data *drv_data); -extern void *pxa2xx_spi_next_transfer(struct driver_data *drv_data); #define MAX_DMA_LEN SZ_64K #define DEFAULT_DMA_CR1 (SSCR1_TSRE | SSCR1_RSRE | SSCR1_TRAIL) extern irqreturn_t pxa2xx_spi_dma_transfer(struct driver_data *drv_data); -extern int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, u32 dma_burst); +extern int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, + struct spi_transfer *xfer); extern void pxa2xx_spi_dma_start(struct driver_data *drv_data); +extern void pxa2xx_spi_dma_stop(struct driver_data *drv_data); extern int pxa2xx_spi_dma_setup(struct driver_data *drv_data); extern void pxa2xx_spi_dma_release(struct driver_data *drv_data); extern int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip, diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index baa3a9fa2638..7b7151ec14c8 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -28,15 +28,15 @@ #define S3C64XX_SPI_CH_CFG 0x00 #define S3C64XX_SPI_CLK_CFG 0x04 -#define S3C64XX_SPI_MODE_CFG 0x08 -#define S3C64XX_SPI_SLAVE_SEL 0x0C +#define S3C64XX_SPI_MODE_CFG 0x08 +#define S3C64XX_SPI_SLAVE_SEL 0x0C #define S3C64XX_SPI_INT_EN 0x10 #define S3C64XX_SPI_STATUS 0x14 #define S3C64XX_SPI_TX_DATA 0x18 #define S3C64XX_SPI_RX_DATA 0x1C -#define S3C64XX_SPI_PACKET_CNT 0x20 -#define S3C64XX_SPI_PENDING_CLR 0x24 -#define S3C64XX_SPI_SWAP_CFG 0x28 +#define S3C64XX_SPI_PACKET_CNT 0x20 +#define S3C64XX_SPI_PENDING_CLR 0x24 +#define S3C64XX_SPI_SWAP_CFG 0x28 #define S3C64XX_SPI_FB_CLK 0x2C #define S3C64XX_SPI_CH_HS_EN (1<<6) /* High Speed Enable */ @@ -77,9 +77,9 @@ #define S3C64XX_SPI_INT_TX_FIFORDY_EN (1<<0) #define S3C64XX_SPI_ST_RX_OVERRUN_ERR (1<<5) -#define S3C64XX_SPI_ST_RX_UNDERRUN_ERR (1<<4) +#define S3C64XX_SPI_ST_RX_UNDERRUN_ERR (1<<4) #define S3C64XX_SPI_ST_TX_OVERRUN_ERR (1<<3) -#define S3C64XX_SPI_ST_TX_UNDERRUN_ERR (1<<2) +#define S3C64XX_SPI_ST_TX_UNDERRUN_ERR (1<<2) #define S3C64XX_SPI_ST_RX_FIFORDY (1<<1) #define S3C64XX_SPI_ST_TX_FIFORDY (1<<0) @@ -100,7 +100,7 @@ #define S3C64XX_SPI_SWAP_TX_BIT (1<<1) #define S3C64XX_SPI_SWAP_TX_EN (1<<0) -#define S3C64XX_SPI_FBCLK_MSK (3<<0) +#define S3C64XX_SPI_FBCLK_MSK (3<<0) #define FIFO_LVL_MASK(i) ((i)->port_conf->fifo_lvl_mask[i->port_id]) #define S3C64XX_SPI_ST_TX_DONE(v, i) (((v) & \ @@ -156,7 +156,6 @@ struct s3c64xx_spi_port_config { * @ioclk: Pointer to the i/o clock between master and slave * @master: Pointer to the SPI Protocol master. * @cntrlr_info: Platform specific data for the controller this driver manages. - * @tgl_spi: Pointer to the last CS left untoggled by the cs_change hint. * @lock: Controller specific lock. * @state: Set of FLAGS to indicate status. * @rx_dmach: Controller's DMA channel for Rx. @@ -177,7 +176,6 @@ struct s3c64xx_spi_driver_data { struct platform_device *pdev; struct spi_master *master; struct s3c64xx_spi_info *cntrlr_info; - struct spi_device *tgl_spi; spinlock_t lock; unsigned long sfr_start; struct completion xfer_completion; @@ -190,7 +188,7 @@ struct s3c64xx_spi_driver_data { unsigned int port_id; }; -static void flush_fifo(struct s3c64xx_spi_driver_data *sdd) +static void s3c64xx_flush_fifo(struct s3c64xx_spi_driver_data *sdd) { void __iomem *regs = sdd->regs; unsigned long loops; @@ -350,9 +348,8 @@ static bool s3c64xx_spi_can_dma(struct spi_master *master, return xfer->len > (FIFO_LVL_MASK(sdd) >> 1) + 1; } -static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, - struct spi_device *spi, - struct spi_transfer *xfer, int dma_mode) +static void s3c64xx_enable_datapath(struct s3c64xx_spi_driver_data *sdd, + struct spi_transfer *xfer, int dma_mode) { void __iomem *regs = sdd->regs; u32 modecfg, chcfg; @@ -442,8 +439,8 @@ static u32 s3c64xx_spi_wait_for_timeout(struct s3c64xx_spi_driver_data *sdd, return RX_FIFO_LVL(status, sdd); } -static int wait_for_dma(struct s3c64xx_spi_driver_data *sdd, - struct spi_transfer *xfer) +static int s3c64xx_wait_for_dma(struct s3c64xx_spi_driver_data *sdd, + struct spi_transfer *xfer) { void __iomem *regs = sdd->regs; unsigned long val; @@ -485,8 +482,8 @@ static int wait_for_dma(struct s3c64xx_spi_driver_data *sdd, return 0; } -static int wait_for_pio(struct s3c64xx_spi_driver_data *sdd, - struct spi_transfer *xfer) +static int s3c64xx_wait_for_pio(struct s3c64xx_spi_driver_data *sdd, + struct spi_transfer *xfer) { void __iomem *regs = sdd->regs; unsigned long val; @@ -505,6 +502,8 @@ static int wait_for_pio(struct s3c64xx_spi_driver_data *sdd, status = readl(regs + S3C64XX_SPI_STATUS); } while (RX_FIFO_LVL(status, sdd) < xfer->len && --val); + if (!val) + return -EIO; /* If it was only Tx */ if (!xfer->rx_buf) { @@ -635,11 +634,15 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master, struct spi_transfer *xfer) { struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master); + const unsigned int fifo_len = (FIFO_LVL_MASK(sdd) >> 1) + 1; + const void *tx_buf = NULL; + void *rx_buf = NULL; + int target_len = 0, origin_len = 0; + int use_dma = 0; int status; u32 speed; u8 bpw; unsigned long flags; - int use_dma; reinit_completion(&sdd->xfer_completion); @@ -654,48 +657,77 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master, s3c64xx_spi_config(sdd); } - /* Polling method for xfers not bigger than FIFO capacity */ - use_dma = 0; - if (!is_polling(sdd) && - (sdd->rx_dma.ch && sdd->tx_dma.ch && - (xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1)))) + if (!is_polling(sdd) && (xfer->len > fifo_len) && + sdd->rx_dma.ch && sdd->tx_dma.ch) { use_dma = 1; - spin_lock_irqsave(&sdd->lock, flags); + } else if (is_polling(sdd) && xfer->len > fifo_len) { + tx_buf = xfer->tx_buf; + rx_buf = xfer->rx_buf; + origin_len = xfer->len; - /* Pending only which is to be done */ - sdd->state &= ~RXBUSY; - sdd->state &= ~TXBUSY; + target_len = xfer->len; + if (xfer->len > fifo_len) + xfer->len = fifo_len; + } - enable_datapath(sdd, spi, xfer, use_dma); + do { + spin_lock_irqsave(&sdd->lock, flags); - /* Start the signals */ - s3c64xx_spi_set_cs(spi, true); + /* Pending only which is to be done */ + sdd->state &= ~RXBUSY; + sdd->state &= ~TXBUSY; - spin_unlock_irqrestore(&sdd->lock, flags); + s3c64xx_enable_datapath(sdd, xfer, use_dma); - if (use_dma) - status = wait_for_dma(sdd, xfer); - else - status = wait_for_pio(sdd, xfer); - - if (status) { - dev_err(&spi->dev, "I/O Error: rx-%d tx-%d res:rx-%c tx-%c len-%d\n", - xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0, - (sdd->state & RXBUSY) ? 'f' : 'p', - (sdd->state & TXBUSY) ? 'f' : 'p', - xfer->len); - - if (use_dma) { - if (xfer->tx_buf != NULL - && (sdd->state & TXBUSY)) - dmaengine_terminate_all(sdd->tx_dma.ch); - if (xfer->rx_buf != NULL - && (sdd->state & RXBUSY)) - dmaengine_terminate_all(sdd->rx_dma.ch); + /* Start the signals */ + s3c64xx_spi_set_cs(spi, true); + + spin_unlock_irqrestore(&sdd->lock, flags); + + if (use_dma) + status = s3c64xx_wait_for_dma(sdd, xfer); + else + status = s3c64xx_wait_for_pio(sdd, xfer); + + if (status) { + dev_err(&spi->dev, + "I/O Error: rx-%d tx-%d res:rx-%c tx-%c len-%d\n", + xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0, + (sdd->state & RXBUSY) ? 'f' : 'p', + (sdd->state & TXBUSY) ? 'f' : 'p', + xfer->len); + + if (use_dma) { + if (xfer->tx_buf && (sdd->state & TXBUSY)) + dmaengine_terminate_all(sdd->tx_dma.ch); + if (xfer->rx_buf && (sdd->state & RXBUSY)) + dmaengine_terminate_all(sdd->rx_dma.ch); + } + } else { + s3c64xx_flush_fifo(sdd); } - } else { - flush_fifo(sdd); + if (target_len > 0) { + target_len -= xfer->len; + + if (xfer->tx_buf) + xfer->tx_buf += xfer->len; + + if (xfer->rx_buf) + xfer->rx_buf += xfer->len; + + if (target_len > fifo_len) + xfer->len = fifo_len; + else + xfer->len = target_len; + } + } while (target_len > 0); + + if (origin_len) { + /* Restore original xfer buffers and length */ + xfer->tx_buf = tx_buf; + xfer->rx_buf = rx_buf; + xfer->len = origin_len; } return status; @@ -891,7 +923,7 @@ static irqreturn_t s3c64xx_spi_irq(int irq, void *data) return IRQ_HANDLED; } -static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd, int channel) +static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd) { struct s3c64xx_spi_info *sci = sdd->cntrlr_info; void __iomem *regs = sdd->regs; @@ -929,7 +961,7 @@ static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd, int channel) val |= (S3C64XX_SPI_TRAILCNT << S3C64XX_SPI_TRAILCNT_OFF); writel(val, regs + S3C64XX_SPI_MODE_CFG); - flush_fifo(sdd); + s3c64xx_flush_fifo(sdd); } #ifdef CONFIG_OF @@ -1145,7 +1177,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) pm_runtime_get_sync(&pdev->dev); /* Setup Deufult Mode */ - s3c64xx_spi_hwinit(sdd, sdd->port_id); + s3c64xx_spi_hwinit(sdd); spin_lock_init(&sdd->lock); init_completion(&sdd->xfer_completion); @@ -1260,8 +1292,6 @@ static int s3c64xx_spi_resume(struct device *dev) if (ret < 0) return ret; - s3c64xx_spi_hwinit(sdd, sdd->port_id); - return spi_master_resume(master); } #endif /* CONFIG_PM_SLEEP */ @@ -1299,6 +1329,8 @@ static int s3c64xx_spi_runtime_resume(struct device *dev) if (ret != 0) goto err_disable_src_clk; + s3c64xx_spi_hwinit(sdd); + return 0; err_disable_src_clk: @@ -1344,15 +1376,6 @@ static struct s3c64xx_spi_port_config exynos4_spi_port_config = { .clk_from_cmu = true, }; -static struct s3c64xx_spi_port_config exynos5440_spi_port_config = { - .fifo_lvl_mask = { 0x1ff }, - .rx_lvl_offset = 15, - .tx_st_done = 25, - .high_speed = true, - .clk_from_cmu = true, - .quirks = S3C64XX_SPI_QUIRK_POLL, -}; - static struct s3c64xx_spi_port_config exynos7_spi_port_config = { .fifo_lvl_mask = { 0x1ff, 0x7F, 0x7F, 0x7F, 0x7F, 0x1ff}, .rx_lvl_offset = 15, @@ -1396,9 +1419,6 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = { { .compatible = "samsung,exynos4210-spi", .data = (void *)&exynos4_spi_port_config, }, - { .compatible = "samsung,exynos5440-spi", - .data = (void *)&exynos5440_spi_port_config, - }, { .compatible = "samsung,exynos7-spi", .data = (void *)&exynos7_spi_port_config, }, diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 8171eedbfc90..0e74cbf9929d 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -39,7 +39,7 @@ struct sh_msiof_chipdata { u16 tx_fifo_size; u16 rx_fifo_size; u16 master_flags; - u16 min_div; + u16 min_div_pow; }; struct sh_msiof_spi_priv { @@ -51,7 +51,7 @@ struct sh_msiof_spi_priv { struct completion done; unsigned int tx_fifo_size; unsigned int rx_fifo_size; - unsigned int min_div; + unsigned int min_div_pow; void *tx_dma_page; void *rx_dma_page; dma_addr_t tx_dma_addr; @@ -249,43 +249,46 @@ static irqreturn_t sh_msiof_spi_irq(int irq, void *data) return IRQ_HANDLED; } -static struct { - unsigned short div; - unsigned short brdv; -} const sh_msiof_spi_div_table[] = { - { 1, SCR_BRDV_DIV_1 }, - { 2, SCR_BRDV_DIV_2 }, - { 4, SCR_BRDV_DIV_4 }, - { 8, SCR_BRDV_DIV_8 }, - { 16, SCR_BRDV_DIV_16 }, - { 32, SCR_BRDV_DIV_32 }, +static const u32 sh_msiof_spi_div_array[] = { + SCR_BRDV_DIV_1, SCR_BRDV_DIV_2, SCR_BRDV_DIV_4, + SCR_BRDV_DIV_8, SCR_BRDV_DIV_16, SCR_BRDV_DIV_32, }; static void sh_msiof_spi_set_clk_regs(struct sh_msiof_spi_priv *p, unsigned long parent_rate, u32 spi_hz) { - unsigned long div = 1024; + unsigned long div; u32 brps, scr; - size_t k; + unsigned int div_pow = p->min_div_pow; - if (!WARN_ON(!spi_hz || !parent_rate)) - div = DIV_ROUND_UP(parent_rate, spi_hz); - - div = max_t(unsigned long, div, p->min_div); + if (!spi_hz || !parent_rate) { + WARN(1, "Invalid clock rate parameters %lu and %u\n", + parent_rate, spi_hz); + return; + } - for (k = 0; k < ARRAY_SIZE(sh_msiof_spi_div_table); k++) { - brps = DIV_ROUND_UP(div, sh_msiof_spi_div_table[k].div); + div = DIV_ROUND_UP(parent_rate, spi_hz); + if (div <= 1024) { /* SCR_BRDV_DIV_1 is valid only if BRPS is x 1/1 or x 1/2 */ - if (sh_msiof_spi_div_table[k].div == 1 && brps > 2) - continue; - if (brps <= 32) /* max of brdv is 32 */ - break; - } + if (!div_pow && div <= 32 && div > 2) + div_pow = 1; + + if (div_pow) + brps = (div + 1) >> div_pow; + else + brps = div; - k = min_t(int, k, ARRAY_SIZE(sh_msiof_spi_div_table) - 1); - brps = min_t(int, brps, 32); + for (; brps > 32; div_pow++) + brps = (brps + 1) >> 1; + } else { + /* Set transfer rate composite divisor to 2^5 * 32 = 1024 */ + dev_err(&p->pdev->dev, + "Requested SPI transfer rate %d is too low\n", spi_hz); + div_pow = 5; + brps = 32; + } - scr = sh_msiof_spi_div_table[k].brdv | SCR_BRPS(brps); + scr = sh_msiof_spi_div_array[div_pow] | SCR_BRPS(brps); sh_msiof_write(p, TSCR, scr); if (!(p->master->flags & SPI_MASTER_MUST_TX)) sh_msiof_write(p, RSCR, scr); @@ -564,14 +567,16 @@ static int sh_msiof_spi_setup(struct spi_device *spi) /* Configure native chip select mode/polarity early */ clr = MDR1_SYNCMD_MASK; - set = MDR1_TRMD | TMDR1_PCON | MDR1_SYNCMD_SPI; + set = MDR1_SYNCMD_SPI; if (spi->mode & SPI_CS_HIGH) clr |= BIT(MDR1_SYNCAC_SHIFT); else set |= BIT(MDR1_SYNCAC_SHIFT); pm_runtime_get_sync(&p->pdev->dev); tmp = sh_msiof_read(p, TMDR1) & ~clr; - sh_msiof_write(p, TMDR1, tmp | set); + sh_msiof_write(p, TMDR1, tmp | set | MDR1_TRMD | TMDR1_PCON); + tmp = sh_msiof_read(p, RMDR1) & ~clr; + sh_msiof_write(p, RMDR1, tmp | set); pm_runtime_put(&p->pdev->dev); p->native_cs_high = spi->mode & SPI_CS_HIGH; p->native_cs_inited = true; @@ -1041,21 +1046,21 @@ static const struct sh_msiof_chipdata sh_data = { .tx_fifo_size = 64, .rx_fifo_size = 64, .master_flags = 0, - .min_div = 1, + .min_div_pow = 0, }; static const struct sh_msiof_chipdata rcar_gen2_data = { .tx_fifo_size = 64, .rx_fifo_size = 64, .master_flags = SPI_MASTER_MUST_TX, - .min_div = 1, + .min_div_pow = 0, }; static const struct sh_msiof_chipdata rcar_gen3_data = { .tx_fifo_size = 64, .rx_fifo_size = 64, .master_flags = SPI_MASTER_MUST_TX, - .min_div = 2, + .min_div_pow = 1, }; static const struct of_device_id sh_msiof_match[] = { @@ -1319,7 +1324,7 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, p); p->master = master; p->info = info; - p->min_div = chipdata->min_div; + p->min_div_pow = chipdata->min_div_pow; init_completion(&p->done); diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index ba9743fa2326..ad1e55d3d5d5 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -1129,7 +1129,7 @@ static int stm32_spi_probe(struct platform_device *pdev) if (!spi->clk_rate) { dev_err(&pdev->dev, "clk rate = 0\n"); ret = -EINVAL; - goto err_master_put; + goto err_clk_disable; } spi->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index c24d9b45a27c..5f19016bbf10 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -36,6 +36,7 @@ #include <linux/sizes.h> #include <linux/spi/spi.h> +#include <linux/spi/spi-mem.h> struct ti_qspi_regs { u32 clkctrl; @@ -50,6 +51,7 @@ struct ti_qspi { struct spi_master *master; void __iomem *base; void __iomem *mmap_base; + size_t mmap_size; struct regmap *ctrl_base; unsigned int ctrl_reg; struct clk *fclk; @@ -434,12 +436,10 @@ static int ti_qspi_dma_xfer(struct ti_qspi *qspi, dma_addr_t dma_dst, return 0; } -static int ti_qspi_dma_bounce_buffer(struct ti_qspi *qspi, - struct spi_flash_read_message *msg) +static int ti_qspi_dma_bounce_buffer(struct ti_qspi *qspi, loff_t offs, + void *to, size_t readsize) { - size_t readsize = msg->len; - void *to = msg->buf; - dma_addr_t dma_src = qspi->mmap_phys_base + msg->from; + dma_addr_t dma_src = qspi->mmap_phys_base + offs; int ret = 0; /* @@ -507,13 +507,14 @@ static void ti_qspi_disable_memory_map(struct spi_device *spi) qspi->mmap_enabled = false; } -static void ti_qspi_setup_mmap_read(struct spi_device *spi, - struct spi_flash_read_message *msg) +static void ti_qspi_setup_mmap_read(struct spi_device *spi, u8 opcode, + u8 data_nbits, u8 addr_width, + u8 dummy_bytes) { struct ti_qspi *qspi = spi_master_get_devdata(spi->master); - u32 memval = msg->read_opcode; + u32 memval = opcode; - switch (msg->data_nbits) { + switch (data_nbits) { case SPI_NBITS_QUAD: memval |= QSPI_SETUP_RD_QUAD; break; @@ -524,48 +525,64 @@ static void ti_qspi_setup_mmap_read(struct spi_device *spi, memval |= QSPI_SETUP_RD_NORMAL; break; } - memval |= ((msg->addr_width - 1) << QSPI_SETUP_ADDR_SHIFT | - msg->dummy_bytes << QSPI_SETUP_DUMMY_SHIFT); + memval |= ((addr_width - 1) << QSPI_SETUP_ADDR_SHIFT | + dummy_bytes << QSPI_SETUP_DUMMY_SHIFT); ti_qspi_write(qspi, memval, QSPI_SPI_SETUP_REG(spi->chip_select)); } -static bool ti_qspi_spi_flash_can_dma(struct spi_device *spi, - struct spi_flash_read_message *msg) +static int ti_qspi_exec_mem_op(struct spi_mem *mem, + const struct spi_mem_op *op) { - return virt_addr_valid(msg->buf); -} - -static int ti_qspi_spi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) -{ - struct ti_qspi *qspi = spi_master_get_devdata(spi->master); + struct ti_qspi *qspi = spi_master_get_devdata(mem->spi->master); + u32 from = 0; int ret = 0; + /* Only optimize read path. */ + if (!op->data.nbytes || op->data.dir != SPI_MEM_DATA_IN || + !op->addr.nbytes || op->addr.nbytes > 4) + return -ENOTSUPP; + + /* Address exceeds MMIO window size, fall back to regular mode. */ + from = op->addr.val; + if (from + op->data.nbytes > qspi->mmap_size) + return -ENOTSUPP; + mutex_lock(&qspi->list_lock); if (!qspi->mmap_enabled) - ti_qspi_enable_memory_map(spi); - ti_qspi_setup_mmap_read(spi, msg); + ti_qspi_enable_memory_map(mem->spi); + ti_qspi_setup_mmap_read(mem->spi, op->cmd.opcode, op->data.buswidth, + op->addr.nbytes, op->dummy.nbytes); if (qspi->rx_chan) { - if (msg->cur_msg_mapped) - ret = ti_qspi_dma_xfer_sg(qspi, msg->rx_sg, msg->from); - else - ret = ti_qspi_dma_bounce_buffer(qspi, msg); - if (ret) - goto err_unlock; + struct sg_table sgt; + + if (virt_addr_valid(op->data.buf.in) && + !spi_controller_dma_map_mem_op_data(mem->spi->master, op, + &sgt)) { + ret = ti_qspi_dma_xfer_sg(qspi, sgt, from); + spi_controller_dma_unmap_mem_op_data(mem->spi->master, + op, &sgt); + } else { + ret = ti_qspi_dma_bounce_buffer(qspi, from, + op->data.buf.in, + op->data.nbytes); + } } else { - memcpy_fromio(msg->buf, qspi->mmap_base + msg->from, msg->len); + memcpy_fromio(op->data.buf.in, qspi->mmap_base + from, + op->data.nbytes); } - msg->retlen = msg->len; -err_unlock: mutex_unlock(&qspi->list_lock); return ret; } +static const struct spi_controller_mem_ops ti_qspi_mem_ops = { + .exec_op = ti_qspi_exec_mem_op, +}; + static int ti_qspi_start_transfer_one(struct spi_master *master, struct spi_message *m) { @@ -672,7 +689,7 @@ static int ti_qspi_probe(struct platform_device *pdev) master->dev.of_node = pdev->dev.of_node; master->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(16) | SPI_BPW_MASK(8); - master->spi_flash_read = ti_qspi_spi_flash_read; + master->mem_ops = &ti_qspi_mem_ops; if (!of_property_read_u32(np, "num-cs", &num_cs)) master->num_chipselect = num_cs; @@ -702,6 +719,9 @@ static int ti_qspi_probe(struct platform_device *pdev) } } + if (res_mmap) + qspi->mmap_size = resource_size(res_mmap); + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(&pdev->dev, "no irq resource?\n"); @@ -770,7 +790,6 @@ static int ti_qspi_probe(struct platform_device *pdev) dma_release_channel(qspi->rx_chan); goto no_dma; } - master->spi_flash_can_dma = ti_qspi_spi_flash_can_dma; master->dma_rx = qspi->rx_chan; init_completion(&qspi->transfer_complete); if (res_mmap) @@ -784,7 +803,7 @@ no_dma: "mmap failed with error %ld using PIO mode\n", PTR_ERR(qspi->mmap_base)); qspi->mmap_base = NULL; - master->spi_flash_read = NULL; + master->mem_ops = NULL; } } qspi->mmap_enabled = false; diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c index 18aeaceee286..cc4d31033494 100644 --- a/drivers/spi/spi-zynqmp-gqspi.c +++ b/drivers/spi/spi-zynqmp-gqspi.c @@ -20,6 +20,7 @@ #include <linux/of_irq.h> #include <linux/of_address.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/spi/spi.h> #include <linux/spinlock.h> #include <linux/workqueue.h> @@ -135,6 +136,7 @@ #define GQSPI_DMA_UNALIGN 0x3 #define GQSPI_DEFAULT_NUM_CS 1 /* Default number of chip selects */ +#define SPI_AUTOSUSPEND_TIMEOUT 3000 enum mode_type {GQSPI_MODE_IO, GQSPI_MODE_DMA}; /** @@ -356,21 +358,9 @@ static void zynqmp_qspi_copy_read_data(struct zynqmp_qspi *xqspi, static int zynqmp_prepare_transfer_hardware(struct spi_master *master) { struct zynqmp_qspi *xqspi = spi_master_get_devdata(master); - int ret; - - ret = clk_enable(xqspi->refclk); - if (ret) - return ret; - - ret = clk_enable(xqspi->pclk); - if (ret) - goto clk_err; zynqmp_gqspi_write(xqspi, GQSPI_EN_OFST, GQSPI_EN_MASK); return 0; -clk_err: - clk_disable(xqspi->refclk); - return ret; } /** @@ -387,8 +377,6 @@ static int zynqmp_unprepare_transfer_hardware(struct spi_master *master) struct zynqmp_qspi *xqspi = spi_master_get_devdata(master); zynqmp_gqspi_write(xqspi, GQSPI_EN_OFST, 0x0); - clk_disable(xqspi->refclk); - clk_disable(xqspi->pclk); return 0; } @@ -918,8 +906,7 @@ static int zynqmp_qspi_start_transfer(struct spi_master *master, */ static int __maybe_unused zynqmp_qspi_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); spi_master_suspend(master); @@ -939,8 +926,7 @@ static int __maybe_unused zynqmp_qspi_suspend(struct device *dev) */ static int __maybe_unused zynqmp_qspi_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct spi_master *master = platform_get_drvdata(pdev); + struct spi_master *master = dev_get_drvdata(dev); struct zynqmp_qspi *xqspi = spi_master_get_devdata(master); int ret = 0; @@ -959,11 +945,67 @@ static int __maybe_unused zynqmp_qspi_resume(struct device *dev) spi_master_resume(master); + clk_disable(xqspi->refclk); + clk_disable(xqspi->pclk); return 0; } -static SIMPLE_DEV_PM_OPS(zynqmp_qspi_dev_pm_ops, zynqmp_qspi_suspend, - zynqmp_qspi_resume); +/** + * zynqmp_runtime_suspend - Runtime suspend method for the SPI driver + * @dev: Address of the platform_device structure + * + * This function disables the clocks + * + * Return: Always 0 + */ +static int __maybe_unused zynqmp_runtime_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct spi_master *master = platform_get_drvdata(pdev); + struct zynqmp_qspi *xqspi = spi_master_get_devdata(master); + + clk_disable(xqspi->refclk); + clk_disable(xqspi->pclk); + + return 0; +} + +/** + * zynqmp_runtime_resume - Runtime resume method for the SPI driver + * @dev: Address of the platform_device structure + * + * This function enables the clocks + * + * Return: 0 on success and error value on error + */ +static int __maybe_unused zynqmp_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct spi_master *master = platform_get_drvdata(pdev); + struct zynqmp_qspi *xqspi = spi_master_get_devdata(master); + int ret; + + ret = clk_enable(xqspi->pclk); + if (ret) { + dev_err(dev, "Cannot enable APB clock.\n"); + return ret; + } + + ret = clk_enable(xqspi->refclk); + if (ret) { + dev_err(dev, "Cannot enable device clock.\n"); + clk_disable(xqspi->pclk); + return ret; + } + + return 0; +} + +static const struct dev_pm_ops zynqmp_qspi_dev_pm_ops = { + SET_RUNTIME_PM_OPS(zynqmp_runtime_suspend, + zynqmp_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(zynqmp_qspi_suspend, zynqmp_qspi_resume) +}; /** * zynqmp_qspi_probe: Probe method for the QSPI driver @@ -1023,9 +1065,15 @@ static int zynqmp_qspi_probe(struct platform_device *pdev) goto clk_dis_pclk; } + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, SPI_AUTOSUSPEND_TIMEOUT); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); /* QSPI controller initializations */ zynqmp_qspi_init_hw(xqspi); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); xqspi->irq = platform_get_irq(pdev, 0); if (xqspi->irq <= 0) { ret = -ENXIO; @@ -1063,6 +1111,8 @@ static int zynqmp_qspi_probe(struct platform_device *pdev) return 0; clk_dis_all: + pm_runtime_set_suspended(&pdev->dev); + pm_runtime_disable(&pdev->dev); clk_disable_unprepare(xqspi->refclk); clk_dis_pclk: clk_disable_unprepare(xqspi->pclk); @@ -1090,6 +1140,8 @@ static int zynqmp_qspi_remove(struct platform_device *pdev) zynqmp_gqspi_write(xqspi, GQSPI_EN_OFST, 0x0); clk_disable_unprepare(xqspi->refclk); clk_disable_unprepare(xqspi->pclk); + pm_runtime_set_suspended(&pdev->dev); + pm_runtime_disable(&pdev->dev); spi_unregister_master(master); diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 7b213faa0a2b..20b5b2754830 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -28,6 +28,7 @@ #include <linux/slab.h> #include <linux/mod_devicetable.h> #include <linux/spi/spi.h> +#include <linux/spi/spi-mem.h> #include <linux/of_gpio.h> #include <linux/pm_runtime.h> #include <linux/pm_domain.h> @@ -46,6 +47,8 @@ #define CREATE_TRACE_POINTS #include <trace/events/spi.h> +#include "internals.h" + static DEFINE_IDR(spi_master_idr); static void spidev_release(struct device *dev) @@ -740,9 +743,9 @@ static void spi_set_cs(struct spi_device *spi, bool enable) } #ifdef CONFIG_HAS_DMA -static int spi_map_buf(struct spi_controller *ctlr, struct device *dev, - struct sg_table *sgt, void *buf, size_t len, - enum dma_data_direction dir) +int spi_map_buf(struct spi_controller *ctlr, struct device *dev, + struct sg_table *sgt, void *buf, size_t len, + enum dma_data_direction dir) { const bool vmalloced_buf = is_vmalloc_addr(buf); unsigned int max_seg_size = dma_get_max_seg_size(dev); @@ -821,8 +824,8 @@ static int spi_map_buf(struct spi_controller *ctlr, struct device *dev, return 0; } -static void spi_unmap_buf(struct spi_controller *ctlr, struct device *dev, - struct sg_table *sgt, enum dma_data_direction dir) +void spi_unmap_buf(struct spi_controller *ctlr, struct device *dev, + struct sg_table *sgt, enum dma_data_direction dir) { if (sgt->orig_nents) { dma_unmap_sg(dev, sgt->sgl, sgt->orig_nents, dir); @@ -907,19 +910,6 @@ static int __spi_unmap_msg(struct spi_controller *ctlr, struct spi_message *msg) return 0; } #else /* !CONFIG_HAS_DMA */ -static inline int spi_map_buf(struct spi_controller *ctlr, struct device *dev, - struct sg_table *sgt, void *buf, size_t len, - enum dma_data_direction dir) -{ - return -EINVAL; -} - -static inline void spi_unmap_buf(struct spi_controller *ctlr, - struct device *dev, struct sg_table *sgt, - enum dma_data_direction dir) -{ -} - static inline int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg) { @@ -1222,6 +1212,7 @@ static void __spi_pump_messages(struct spi_controller *ctlr, bool in_kthread) if (!was_busy && ctlr->auto_runtime_pm) { ret = pm_runtime_get_sync(ctlr->dev.parent); if (ret < 0) { + pm_runtime_put_noidle(ctlr->dev.parent); dev_err(&ctlr->dev, "Failed to power device: %d\n", ret); mutex_unlock(&ctlr->io_mutex); @@ -1533,6 +1524,22 @@ err_init_queue: return ret; } +/** + * spi_flush_queue - Send all pending messages in the queue from the callers' + * context + * @ctlr: controller to process queue for + * + * This should be used when one wants to ensure all pending messages have been + * sent before doing something. Is used by the spi-mem code to make sure SPI + * memory operations do not preempt regular SPI transfers that have been queued + * before the spi-mem operation. + */ +void spi_flush_queue(struct spi_controller *ctlr) +{ + if (ctlr->transfer == spi_queued_transfer) + __spi_pump_messages(ctlr, false); +} + /*-------------------------------------------------------------------------*/ #if defined(CONFIG_OF) @@ -2063,6 +2070,26 @@ static int of_spi_register_master(struct spi_controller *ctlr) } #endif +static int spi_controller_check_ops(struct spi_controller *ctlr) +{ + /* + * The controller may implement only the high-level SPI-memory like + * operations if it does not support regular SPI transfers, and this is + * valid use case. + * If ->mem_ops is NULL, we request that at least one of the + * ->transfer_xxx() method be implemented. + */ + if (ctlr->mem_ops) { + if (!ctlr->mem_ops->exec_op) + return -EINVAL; + } else if (!ctlr->transfer && !ctlr->transfer_one && + !ctlr->transfer_one_message) { + return -EINVAL; + } + + return 0; +} + /** * spi_register_controller - register SPI master or slave controller * @ctlr: initialized master, originally from spi_alloc_master() or @@ -2096,6 +2123,14 @@ int spi_register_controller(struct spi_controller *ctlr) if (!dev) return -ENODEV; + /* + * Make sure all necessary hooks are implemented before registering + * the SPI controller. + */ + status = spi_controller_check_ops(ctlr); + if (status) + return status; + if (!spi_controller_is_slave(ctlr)) { status = of_spi_register_master(ctlr); if (status) @@ -2161,10 +2196,14 @@ int spi_register_controller(struct spi_controller *ctlr) spi_controller_is_slave(ctlr) ? "slave" : "master", dev_name(&ctlr->dev)); - /* If we're using a queued driver, start the queue */ - if (ctlr->transfer) + /* + * If we're using a queued driver, start the queue. Note that we don't + * need the queueing logic if the driver is only supporting high-level + * memory operations. + */ + if (ctlr->transfer) { dev_info(dev, "controller is unqueued, this is deprecated\n"); - else { + } else if (ctlr->transfer_one || ctlr->transfer_one_message) { status = spi_controller_initialize_queue(ctlr); if (status) { device_del(&ctlr->dev); @@ -2894,6 +2933,13 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) { struct spi_controller *ctlr = spi->controller; + /* + * Some controllers do not support doing regular SPI transfers. Return + * ENOTSUPP when this is the case. + */ + if (!ctlr->transfer) + return -ENOTSUPP; + message->spi = spi; SPI_STATISTICS_INCREMENT_FIELD(&ctlr->statistics, spi_async); @@ -3010,63 +3056,6 @@ int spi_async_locked(struct spi_device *spi, struct spi_message *message) } EXPORT_SYMBOL_GPL(spi_async_locked); - -int spi_flash_read(struct spi_device *spi, - struct spi_flash_read_message *msg) - -{ - struct spi_controller *master = spi->controller; - struct device *rx_dev = NULL; - int ret; - - if ((msg->opcode_nbits == SPI_NBITS_DUAL || - msg->addr_nbits == SPI_NBITS_DUAL) && - !(spi->mode & (SPI_TX_DUAL | SPI_TX_QUAD))) - return -EINVAL; - if ((msg->opcode_nbits == SPI_NBITS_QUAD || - msg->addr_nbits == SPI_NBITS_QUAD) && - !(spi->mode & SPI_TX_QUAD)) - return -EINVAL; - if (msg->data_nbits == SPI_NBITS_DUAL && - !(spi->mode & (SPI_RX_DUAL | SPI_RX_QUAD))) - return -EINVAL; - if (msg->data_nbits == SPI_NBITS_QUAD && - !(spi->mode & SPI_RX_QUAD)) - return -EINVAL; - - if (master->auto_runtime_pm) { - ret = pm_runtime_get_sync(master->dev.parent); - if (ret < 0) { - dev_err(&master->dev, "Failed to power device: %d\n", - ret); - return ret; - } - } - - mutex_lock(&master->bus_lock_mutex); - mutex_lock(&master->io_mutex); - if (master->dma_rx && master->spi_flash_can_dma(spi, msg)) { - rx_dev = master->dma_rx->device->dev; - ret = spi_map_buf(master, rx_dev, &msg->rx_sg, - msg->buf, msg->len, - DMA_FROM_DEVICE); - if (!ret) - msg->cur_msg_mapped = true; - } - ret = master->spi_flash_read(spi, msg); - if (msg->cur_msg_mapped) - spi_unmap_buf(master, rx_dev, &msg->rx_sg, - DMA_FROM_DEVICE); - mutex_unlock(&master->io_mutex); - mutex_unlock(&master->bus_lock_mutex); - - if (master->auto_runtime_pm) - pm_runtime_put(master->dev.parent); - - return ret; -} -EXPORT_SYMBOL_GPL(spi_flash_read); - /*-------------------------------------------------------------------------*/ /* Utility methods for SPI protocol drivers, layered on diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c index b3f3b4a201af..5471b2212a62 100644 --- a/drivers/staging/comedi/drivers/serial2002.c +++ b/drivers/staging/comedi/drivers/serial2002.c @@ -113,7 +113,7 @@ static void serial2002_tty_read_poll_wait(struct file *f, int timeout) long elapsed; __poll_t mask; - mask = f->f_op->poll(f, &table.pt); + mask = vfs_poll(f, &table.pt); if (mask & (EPOLLRDNORM | EPOLLRDBAND | EPOLLIN | EPOLLHUP | EPOLLERR)) { break; @@ -136,7 +136,7 @@ static int serial2002_tty_read(struct file *f, int timeout) result = -1; if (!IS_ERR(f)) { - if (f->f_op->poll) { + if (file_can_poll(f)) { serial2002_tty_read_poll_wait(f, timeout); if (kernel_read(f, &ch, 1, &pos) == 1) diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c index 50d38938ac6f..8bc8e42beb90 100644 --- a/drivers/staging/comedi/proc.c +++ b/drivers/staging/comedi/proc.c @@ -62,25 +62,9 @@ static int comedi_read(struct seq_file *m, void *v) return 0; } -/* - * seq_file wrappers for procfile show routines. - */ -static int comedi_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, comedi_read, NULL); -} - -static const struct file_operations comedi_proc_fops = { - .owner = THIS_MODULE, - .open = comedi_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - void __init comedi_proc_init(void) { - if (!proc_create("comedi", 0444, NULL, &comedi_proc_fops)) + if (!proc_create_single("comedi", 0444, NULL, comedi_read)) pr_warn("comedi: unable to create proc entry\n"); } diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index e8bfe5520bc7..fa0dd425b454 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -1506,11 +1506,6 @@ static int fwtty_debugfs_peers_show(struct seq_file *m, void *v) return 0; } -static int fwtty_proc_open(struct inode *inode, struct file *fp) -{ - return single_open(fp, fwtty_proc_show, NULL); -} - static int fwtty_stats_open(struct inode *inode, struct file *fp) { return single_open(fp, fwtty_debugfs_stats_show, inode->i_private); @@ -1537,14 +1532,6 @@ static const struct file_operations fwtty_peers_fops = { .release = single_release, }; -static const struct file_operations fwtty_proc_fops = { - .owner = THIS_MODULE, - .open = fwtty_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static const struct tty_port_operations fwtty_port_ops = { .dtr_rts = fwtty_port_dtr_rts, .carrier_raised = fwtty_port_carrier_raised, @@ -1570,7 +1557,7 @@ static const struct tty_operations fwtty_ops = { .tiocmget = fwtty_tiocmget, .tiocmset = fwtty_tiocmset, .get_icount = fwtty_get_icount, - .proc_fops = &fwtty_proc_fops, + .proc_show = fwtty_proc_show, }; static const struct tty_operations fwloop_ops = { diff --git a/drivers/staging/ipx/af_ipx.c b/drivers/staging/ipx/af_ipx.c index 5703dd176787..208b5c161631 100644 --- a/drivers/staging/ipx/af_ipx.c +++ b/drivers/staging/ipx/af_ipx.c @@ -1965,7 +1965,7 @@ static const struct proto_ops ipx_dgram_ops = { .socketpair = sock_no_socketpair, .accept = sock_no_accept, .getname = ipx_getname, - .poll = datagram_poll, + .poll_mask = datagram_poll_mask, .ioctl = ipx_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ipx_compat_ioctl, diff --git a/drivers/staging/ipx/ipx_proc.c b/drivers/staging/ipx/ipx_proc.c index b9232e4e2ed4..360f0ad970de 100644 --- a/drivers/staging/ipx/ipx_proc.c +++ b/drivers/staging/ipx/ipx_proc.c @@ -244,42 +244,6 @@ static const struct seq_operations ipx_seq_socket_ops = { .show = ipx_seq_socket_show, }; -static int ipx_seq_route_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &ipx_seq_route_ops); -} - -static int ipx_seq_interface_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &ipx_seq_interface_ops); -} - -static int ipx_seq_socket_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &ipx_seq_socket_ops); -} - -static const struct file_operations ipx_seq_interface_fops = { - .open = ipx_seq_interface_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations ipx_seq_route_fops = { - .open = ipx_seq_route_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations ipx_seq_socket_fops = { - .open = ipx_seq_socket_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - static struct proc_dir_entry *ipx_proc_dir; int __init ipx_proc_init(void) @@ -291,16 +255,17 @@ int __init ipx_proc_init(void) if (!ipx_proc_dir) goto out; - p = proc_create("interface", S_IRUGO, - ipx_proc_dir, &ipx_seq_interface_fops); + p = proc_create_seq("interface", S_IRUGO, ipx_proc_dir, + &ipx_seq_interface_ops); if (!p) goto out_interface; - p = proc_create("route", S_IRUGO, ipx_proc_dir, &ipx_seq_route_fops); + p = proc_create_seq("route", S_IRUGO, ipx_proc_dir, &ipx_seq_route_ops); if (!p) goto out_route; - p = proc_create("socket", S_IRUGO, ipx_proc_dir, &ipx_seq_socket_fops); + p = proc_create_seq("socket", S_IRUGO, ipx_proc_dir, + &ipx_seq_socket_ops); if (!p) goto out_socket; diff --git a/drivers/staging/ncpfs/dir.c b/drivers/staging/ncpfs/dir.c index 0c57c5c5d40a..072bcb12898f 100644 --- a/drivers/staging/ncpfs/dir.c +++ b/drivers/staging/ncpfs/dir.c @@ -823,12 +823,11 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, unsig struct ncp_server *server = NCP_SERVER(dir); struct inode *inode = NULL; struct ncp_entry_info finfo; - int error, res, len; + int res, len; __u8 __name[NCP_MAXPATHLEN + 1]; - error = -EIO; if (!ncp_conn_valid(server)) - goto finished; + return ERR_PTR(-EIO); ncp_vdbg("server lookup for %pd2\n", dentry); @@ -847,31 +846,20 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, unsig res = ncp_obtain_info(server, dir, __name, &(finfo.i)); } ncp_vdbg("looked for %pd2, res=%d\n", dentry, res); - /* - * If we didn't find an entry, make a negative dentry. - */ - if (res) - goto add_entry; - - /* - * Create an inode for the entry. - */ - finfo.opened = 0; - finfo.ino = iunique(dir->i_sb, 2); - finfo.volume = finfo.i.volNumber; - error = -EACCES; - inode = ncp_iget(dir->i_sb, &finfo); - - if (inode) { - ncp_new_dentry(dentry); -add_entry: - d_add(dentry, inode); - error = 0; + if (!res) { + /* + * Entry found; create an inode for it. + */ + finfo.opened = 0; + finfo.ino = iunique(dir->i_sb, 2); + finfo.volume = finfo.i.volNumber; + inode = ncp_iget(dir->i_sb, &finfo); + if (unlikely(!inode)) + inode = ERR_PTR(-EACCES); + else + ncp_new_dentry(dentry); } - -finished: - ncp_vdbg("result=%d\n", error); - return ERR_PTR(error); + return d_splice_alias(inode, dentry); } /* diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index d607c59761cf..7a0dbc0fa18e 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -646,64 +646,25 @@ static void rtl8192_proc_module_init(void) rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net); } -/* - * seq_file wrappers for procfile show routines. - */ -static int rtl8192_proc_open(struct inode *inode, struct file *file) -{ - struct net_device *dev = proc_get_parent_data(inode); - int (*show)(struct seq_file *, void *) = PDE_DATA(inode); - - return single_open(file, show, dev); -} - -static const struct file_operations rtl8192_proc_fops = { - .open = rtl8192_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -/* - * Table of proc files we need to create. - */ -struct rtl8192_proc_file { - char name[12]; - int (*show)(struct seq_file *, void *); -}; - -static const struct rtl8192_proc_file rtl8192_proc_files[] = { - { "stats-rx", &proc_get_stats_rx }, - { "stats-tx", &proc_get_stats_tx }, - { "stats-ap", &proc_get_stats_ap }, - { "registers", &proc_get_registers }, - { "" } -}; - static void rtl8192_proc_init_one(struct net_device *dev) { - const struct rtl8192_proc_file *f; struct proc_dir_entry *dir; - if (rtl8192_proc) { - dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); - if (!dir) { - RT_TRACE(COMP_ERR, - "Unable to initialize /proc/net/rtl8192/%s\n", - dev->name); - return; - } + if (!rtl8192_proc) + return; - for (f = rtl8192_proc_files; f->name[0]; f++) { - if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir, - &rtl8192_proc_fops, f->show)) { - RT_TRACE(COMP_ERR, - "Unable to initialize /proc/net/rtl8192/%s/%s\n", - dev->name, f->name); - return; - } - } - } + dir = proc_mkdir_data(dev->name, 0, rtl8192_proc, dev); + if (!dir) + return; + + proc_create_single("stats-rx", S_IFREG | S_IRUGO, dir, + proc_get_stats_rx); + proc_create_single("stats-tx", S_IFREG | S_IRUGO, dir, + proc_get_stats_tx); + proc_create_single("stats-ap", S_IFREG | S_IRUGO, dir, + proc_get_stats_ap); + proc_create_single("registers", S_IFREG | S_IRUGO, dir, + proc_get_registers); } static void rtl8192_proc_remove_one(struct net_device *dev) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 60429011292a..ce1321a5cb7b 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -94,8 +94,8 @@ static int iblock_configure_device(struct se_device *dev) return -EINVAL; } - ib_dev->ibd_bio_set = bioset_create(IBLOCK_BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); - if (!ib_dev->ibd_bio_set) { + ret = bioset_init(&ib_dev->ibd_bio_set, IBLOCK_BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS); + if (ret) { pr_err("IBLOCK: Unable to create bioset\n"); goto out; } @@ -141,7 +141,7 @@ static int iblock_configure_device(struct se_device *dev) bi = bdev_get_integrity(bd); if (bi) { - struct bio_set *bs = ib_dev->ibd_bio_set; + struct bio_set *bs = &ib_dev->ibd_bio_set; if (!strcmp(bi->profile->name, "T10-DIF-TYPE3-IP") || !strcmp(bi->profile->name, "T10-DIF-TYPE1-IP")) { @@ -164,7 +164,7 @@ static int iblock_configure_device(struct se_device *dev) goto out_blkdev_put; } pr_debug("IBLOCK setup BIP bs->bio_integrity_pool: %p\n", - bs->bio_integrity_pool); + &bs->bio_integrity_pool); } dev->dev_attrib.hw_pi_prot_type = dev->dev_attrib.pi_prot_type; } @@ -174,8 +174,7 @@ static int iblock_configure_device(struct se_device *dev) out_blkdev_put: blkdev_put(ib_dev->ibd_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL); out_free_bioset: - bioset_free(ib_dev->ibd_bio_set); - ib_dev->ibd_bio_set = NULL; + bioset_exit(&ib_dev->ibd_bio_set); out: return ret; } @@ -199,8 +198,7 @@ static void iblock_destroy_device(struct se_device *dev) if (ib_dev->ibd_bd != NULL) blkdev_put(ib_dev->ibd_bd, FMODE_WRITE|FMODE_READ|FMODE_EXCL); - if (ib_dev->ibd_bio_set != NULL) - bioset_free(ib_dev->ibd_bio_set); + bioset_exit(&ib_dev->ibd_bio_set); } static unsigned long long iblock_emulate_read_cap_with_block_size( @@ -332,7 +330,7 @@ iblock_get_bio(struct se_cmd *cmd, sector_t lba, u32 sg_num, int op, if (sg_num > BIO_MAX_PAGES) sg_num = BIO_MAX_PAGES; - bio = bio_alloc_bioset(GFP_NOIO, sg_num, ib_dev->ibd_bio_set); + bio = bio_alloc_bioset(GFP_NOIO, sg_num, &ib_dev->ibd_bio_set); if (!bio) { pr_err("Unable to allocate memory for bio\n"); return NULL; diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h index b4aeb2584ad4..9cc3843404d4 100644 --- a/drivers/target/target_core_iblock.h +++ b/drivers/target/target_core_iblock.h @@ -22,7 +22,7 @@ struct iblock_dev { struct se_device dev; unsigned char ibd_udev_path[SE_UDEV_PATH_LEN]; u32 ibd_flags; - struct bio_set *ibd_bio_set; + struct bio_set ibd_bio_set; struct block_device *ibd_bd; bool ibd_readonly; } ____cacheline_aligned; diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 6cb933ecc084..668934ea74cb 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -986,8 +986,7 @@ pscsi_execute_cmd(struct se_cmd *cmd) req = blk_get_request(pdv->pdv_sd->request_queue, cmd->data_direction == DMA_TO_DEVICE ? - REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, - GFP_KERNEL); + REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, 0); if (IS_ERR(req)) { pr_err("PSCSI: blk_get_request() failed\n"); ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 32d7ce430b02..34dead614149 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1566,19 +1566,6 @@ static int rs_proc_show(struct seq_file *m, void *v) return 0; } -static int rs_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, rs_proc_show, NULL); -} - -static const struct file_operations rs_proc_fops = { - .owner = THIS_MODULE, - .open = rs_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* * --------------------------------------------------------------------- * rs_init() and friends @@ -1620,7 +1607,7 @@ static const struct tty_operations serial_ops = { .tiocmget = rs_tiocmget, .tiocmset = rs_tiocmset, .get_icount = rs_get_icount, - .proc_fops = &rs_proc_fops, + .proc_show = rs_proc_show, }; static int amiga_carrier_raised(struct tty_port *port) diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index cf0bde3bb927..6d3c58051ce3 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -3972,19 +3972,6 @@ static int cyclades_proc_show(struct seq_file *m, void *v) return 0; } -static int cyclades_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, cyclades_proc_show, NULL); -} - -static const struct file_operations cyclades_proc_fops = { - .owner = THIS_MODULE, - .open = cyclades_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* The serial driver boot-time initialization code! Hardware I/O ports are mapped to character special devices on a first found, first allocated manner. That is, this code searches @@ -4024,7 +4011,7 @@ static const struct tty_operations cy_ops = { .tiocmget = cy_tiocmget, .tiocmset = cy_tiocmset, .get_icount = cy_get_icount, - .proc_fops = &cyclades_proc_fops, + .proc_show = cyclades_proc_show, }; static int __init cy_init(void) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 0466f9f08a91..6ff9405954a6 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1829,19 +1829,6 @@ static int uart_proc_show(struct seq_file *m, void *v) uart_line_info(m, drv, i); return 0; } - -static int uart_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, uart_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations uart_proc_fops = { - .owner = THIS_MODULE, - .open = uart_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; #endif #if defined(CONFIG_SERIAL_CORE_CONSOLE) || defined(CONFIG_CONSOLE_POLL) @@ -2415,7 +2402,7 @@ static const struct tty_operations uart_ops = { .break_ctl = uart_break_ctl, .wait_until_sent= uart_wait_until_sent, #ifdef CONFIG_PROC_FS - .proc_fops = &uart_proc_fops, + .proc_show = uart_proc_show, #endif .tiocmget = uart_tiocmget, .tiocmset = uart_tiocmset, diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c index 3c4ad71f261d..fbdf4d01c6a9 100644 --- a/drivers/tty/synclink.c +++ b/drivers/tty/synclink.c @@ -3534,19 +3534,6 @@ static int mgsl_proc_show(struct seq_file *m, void *v) return 0; } -static int mgsl_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, mgsl_proc_show, NULL); -} - -static const struct file_operations mgsl_proc_fops = { - .owner = THIS_MODULE, - .open = mgsl_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* mgsl_allocate_dma_buffers() * * Allocate and format DMA buffers (ISA adapter) @@ -4298,7 +4285,7 @@ static const struct tty_operations mgsl_ops = { .tiocmget = tiocmget, .tiocmset = tiocmset, .get_icount = msgl_get_icount, - .proc_fops = &mgsl_proc_fops, + .proc_show = mgsl_proc_show, }; /* diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index 255c49687877..a94086597ebd 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -1316,19 +1316,6 @@ static int synclink_gt_proc_show(struct seq_file *m, void *v) return 0; } -static int synclink_gt_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, synclink_gt_proc_show, NULL); -} - -static const struct file_operations synclink_gt_proc_fops = { - .owner = THIS_MODULE, - .open = synclink_gt_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* * return count of bytes in transmit buffer */ @@ -3721,7 +3708,7 @@ static const struct tty_operations ops = { .tiocmget = tiocmget, .tiocmset = tiocmset, .get_icount = get_icount, - .proc_fops = &synclink_gt_proc_fops, + .proc_show = synclink_gt_proc_show, }; static void slgt_cleanup(void) diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c index 75f11ce1f0a1..1e4d5b9c981a 100644 --- a/drivers/tty/synclinkmp.c +++ b/drivers/tty/synclinkmp.c @@ -1421,19 +1421,6 @@ static int synclinkmp_proc_show(struct seq_file *m, void *v) return 0; } -static int synclinkmp_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, synclinkmp_proc_show, NULL); -} - -static const struct file_operations synclinkmp_proc_fops = { - .owner = THIS_MODULE, - .open = synclinkmp_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - /* Return the count of bytes in transmit buffer */ static int chars_in_buffer(struct tty_struct *tty) @@ -3899,7 +3886,7 @@ static const struct tty_operations ops = { .tiocmget = tiocmget, .tiocmset = tiocmset, .get_icount = get_icount, - .proc_fops = &synclinkmp_proc_fops, + .proc_show = synclinkmp_proc_show, }; diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index fb7329ab2b37..fc4c97cae01e 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -229,26 +229,13 @@ static int tty_ldiscs_seq_show(struct seq_file *m, void *v) return 0; } -static const struct seq_operations tty_ldiscs_seq_ops = { +const struct seq_operations tty_ldiscs_seq_ops = { .start = tty_ldiscs_seq_start, .next = tty_ldiscs_seq_next, .stop = tty_ldiscs_seq_stop, .show = tty_ldiscs_seq_show, }; -static int proc_tty_ldiscs_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &tty_ldiscs_seq_ops); -} - -const struct file_operations tty_ldiscs_proc_fops = { - .owner = THIS_MODULE, - .open = proc_tty_ldiscs_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - /** * tty_ldisc_ref_wait - wait for the tty ldisc * @tty: tty device diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c index ad743a8493be..03959dc86cfd 100644 --- a/drivers/usb/gadget/udc/at91_udc.c +++ b/drivers/usb/gadget/udc/at91_udc.c @@ -234,22 +234,10 @@ static int proc_udc_show(struct seq_file *s, void *unused) return 0; } -static int proc_udc_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_udc_show, PDE_DATA(inode)); -} - -static const struct file_operations proc_ops = { - .owner = THIS_MODULE, - .open = proc_udc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void create_debug_file(struct at91_udc *udc) { - udc->pde = proc_create_data(debug_filename, 0, NULL, &proc_ops, udc); + udc->pde = proc_create_single_data(debug_filename, 0, NULL, + proc_udc_show, udc); } static void remove_debug_file(struct at91_udc *udc) diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c index 56b517a38865..7d8af299dfc7 100644 --- a/drivers/usb/gadget/udc/fsl_udc_core.c +++ b/drivers/usb/gadget/udc/fsl_udc_core.c @@ -2207,22 +2207,8 @@ static int fsl_proc_read(struct seq_file *m, void *v) return 0; } -/* - * seq_file wrappers for procfile show routines. - */ -static int fsl_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, fsl_proc_read, NULL); -} - -static const struct file_operations fsl_proc_fops = { - .open = fsl_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -#define create_proc_file() proc_create(proc_filename, 0, NULL, &fsl_proc_fops) +#define create_proc_file() \ + proc_create_single(proc_filename, 0, NULL, fsl_proc_read) #define remove_proc_file() remove_proc_entry(proc_filename, NULL) #else /* !CONFIG_USB_GADGET_DEBUG_FILES */ diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c index 4504d0b202db..c3721225b61e 100644 --- a/drivers/usb/gadget/udc/goku_udc.c +++ b/drivers/usb/gadget/udc/goku_udc.c @@ -1241,22 +1241,6 @@ done: local_irq_restore(flags); return 0; } - -/* - * seq_file wrappers for procfile show routines. - */ -static int udc_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, udc_proc_read, PDE_DATA(file_inode(file))); -} - -static const struct file_operations udc_proc_fops = { - .open = udc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ /*-------------------------------------------------------------------------*/ @@ -1826,7 +1810,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) #ifdef CONFIG_USB_GADGET_DEBUG_FILES - proc_create_data(proc_node_name, 0, NULL, &udc_proc_fops, dev); + proc_create_single_data(proc_node_name, 0, NULL, udc_proc_read, dev); #endif retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c index dc35a54bad90..3a16431da321 100644 --- a/drivers/usb/gadget/udc/omap_udc.c +++ b/drivers/usb/gadget/udc/omap_udc.c @@ -2432,22 +2432,9 @@ static int proc_udc_show(struct seq_file *s, void *_) return 0; } -static int proc_udc_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_udc_show, NULL); -} - -static const struct file_operations proc_ops = { - .owner = THIS_MODULE, - .open = proc_udc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static void create_proc_file(void) { - proc_create(proc_filename, 0, NULL, &proc_ops); + proc_create_single(proc_filename, 0, NULL, proc_udc_show); } static void remove_proc_file(void) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 790e0cbe3da9..268ffa6b51d2 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -476,19 +476,6 @@ static int serial_proc_show(struct seq_file *m, void *v) return 0; } -static int serial_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, serial_proc_show, NULL); -} - -static const struct file_operations serial_proc_fops = { - .owner = THIS_MODULE, - .open = serial_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static int serial_tiocmget(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; @@ -1192,7 +1179,7 @@ static const struct tty_operations serial_ops = { .get_icount = serial_get_icount, .cleanup = serial_cleanup, .install = serial_install, - .proc_fops = &serial_proc_fops, + .proc_show = serial_proc_show, }; diff --git a/drivers/vfio/virqfd.c b/drivers/vfio/virqfd.c index 085700f1be10..2a1be859ee71 100644 --- a/drivers/vfio/virqfd.c +++ b/drivers/vfio/virqfd.c @@ -166,7 +166,7 @@ int vfio_virqfd_enable(void *opaque, init_waitqueue_func_entry(&virqfd->wait, virqfd_wakeup); init_poll_funcptr(&virqfd->pt, virqfd_ptable_queue_proc); - events = irqfd.file->f_op->poll(irqfd.file, &virqfd->pt); + events = vfs_poll(irqfd.file, &virqfd->pt); /* * Check if there was an event already pending on the eventfd diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index f0be5f35ab28..895eaa25807c 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -208,7 +208,7 @@ int vhost_poll_start(struct vhost_poll *poll, struct file *file) if (poll->wqh) return 0; - mask = file->f_op->poll(file, &poll->table); + mask = vfs_poll(file, &poll->table); if (mask) vhost_poll_wakeup(&poll->wait, 0, 0, poll_to_key(mask)); if (mask & EPOLLERR) { diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index f741ba8df01b..924d0730ffe2 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -713,19 +713,6 @@ static const struct seq_operations proc_fb_seq_ops = { .show = fb_seq_show, }; -static int proc_fb_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &proc_fb_seq_ops); -} - -static const struct file_operations fb_proc_fops = { - .owner = THIS_MODULE, - .open = proc_fb_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - /* * We hold a reference to the fb_info in file->private_data, * but if the current registered fb has changed, we don't @@ -1877,7 +1864,7 @@ fbmem_init(void) { int ret; - if (!proc_create("fb", 0, NULL, &fb_proc_fops)) + if (!proc_create_seq("fb", 0, NULL, &proc_fb_seq_ops)) return -ENOMEM; ret = register_chrdev(FB_MAJOR, "fb", &fb_fops); diff --git a/drivers/video/fbdev/via/viafbdev.c b/drivers/video/fbdev/via/viafbdev.c index badee04ef496..9b45125988fb 100644 --- a/drivers/video/fbdev/via/viafbdev.c +++ b/drivers/video/fbdev/via/viafbdev.c @@ -1475,19 +1475,6 @@ static int viafb_sup_odev_proc_show(struct seq_file *m, void *v) return 0; } -static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, viafb_sup_odev_proc_show, NULL); -} - -static const struct file_operations viafb_sup_odev_proc_fops = { - .owner = THIS_MODULE, - .open = viafb_sup_odev_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev) { char buf[64], *ptr = buf; @@ -1616,8 +1603,8 @@ static void viafb_init_proc(struct viafb_shared *shared) &viafb_vt1636_proc_fops); #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */ - proc_create("supported_output_devices", 0, viafb_entry, - &viafb_sup_odev_proc_fops); + proc_create_single("supported_output_devices", 0, viafb_entry, + viafb_sup_odev_proc_show); iga1_entry = proc_mkdir("iga1", viafb_entry); shared->iga1_proc_entry = iga1_entry; proc_create("output_devices", 0, iga1_entry, diff --git a/drivers/w1/w1_io.c b/drivers/w1/w1_io.c index 075d120e7b88..0364d3329c52 100644 --- a/drivers/w1/w1_io.c +++ b/drivers/w1/w1_io.c @@ -194,6 +194,7 @@ static u8 w1_read_bit(struct w1_master *dev) * bit 0 = id_bit * bit 1 = comp_bit * bit 2 = dir_taken + * * If both bits 0 & 1 are set, the search should be restarted. * * Return: bit fields - see above diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c index df05a26ab8d8..2e4ca4dc0960 100644 --- a/drivers/zorro/proc.c +++ b/drivers/zorro/proc.c @@ -96,19 +96,6 @@ static const struct seq_operations zorro_devices_seq_ops = { .show = zorro_seq_show, }; -static int zorro_devices_proc_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &zorro_devices_seq_ops); -} - -static const struct file_operations zorro_devices_proc_fops = { - .owner = THIS_MODULE, - .open = zorro_devices_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - static struct proc_dir_entry *proc_bus_zorro_dir; static int __init zorro_proc_attach_device(unsigned int slot) @@ -132,8 +119,8 @@ static int __init zorro_proc_init(void) if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) { proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL); - proc_create("devices", 0, proc_bus_zorro_dir, - &zorro_devices_proc_fops); + proc_create_seq("devices", 0, proc_bus_zorro_dir, + &zorro_devices_seq_ops); for (slot = 0; slot < zorro_num_autocon; slot++) zorro_proc_attach_device(slot); } diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c index 47728477297e..67fa900572a9 100644 --- a/drivers/zorro/zorro.c +++ b/drivers/zorro/zorro.c @@ -101,6 +101,7 @@ static void __init mark_region(unsigned long start, unsigned long end, end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START; while (start < end) { u32 chunk = start>>Z2RAM_CHUNKSHIFT; + if (flag) set_bit(chunk, zorro_unused_z2ram); else @@ -117,6 +118,7 @@ static struct resource __init *zorro_find_parent_resource( for (i = 0; i < bridge->num_resources; i++) { struct resource *r = &bridge->resource[i]; + if (zorro_resource_start(z) >= r->start && zorro_resource_end(z) <= r->end) return r; @@ -168,6 +170,7 @@ static int __init amiga_zorro_probe(struct platform_device *pdev) if (z->id == ZORRO_PROD_GVP_EPC_BASE) { /* GVP quirk */ unsigned long magic = zi->boardaddr + 0x8000; + z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK; } z->slotaddr = zi->slotaddr; |