diff options
| -rw-r--r-- | drivers/acpi/acpi_lpss.c | 8 | ||||
| -rw-r--r-- | drivers/acpi/acpi_processor.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 19 | ||||
| -rw-r--r-- | drivers/acpi/custom_method.c | 5 | ||||
| -rw-r--r-- | drivers/acpi/hmat/hmat.c | 143 | ||||
| -rw-r--r-- | drivers/acpi/pci_irq.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/pci_link.c | 4 |
7 files changed, 151 insertions, 42 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index d696f165a50e..60bbc5090abe 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -219,12 +219,13 @@ static void bsw_pwm_setup(struct lpss_private_data *pdata) } static const struct lpss_device_desc lpt_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR + | LPSS_SAVE_CTX, .prv_offset = 0x800, }; static const struct lpss_device_desc lpt_i2c_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR | LPSS_SAVE_CTX, .prv_offset = 0x800, }; @@ -236,7 +237,8 @@ static struct property_entry uart_properties[] = { }; static const struct lpss_device_desc lpt_uart_dev_desc = { - .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR, + .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR + | LPSS_SAVE_CTX, .clk_con_id = "baudclk", .prv_offset = 0x800, .setup = lpss_uart_setup, diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 24f065114d42..2c4dda0787e8 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -279,9 +279,13 @@ static int acpi_processor_get_info(struct acpi_device *device) } if (acpi_duplicate_processor_id(pr->acpi_id)) { - dev_err(&device->dev, - "Failed to get unique processor _UID (0x%x)\n", - pr->acpi_id); + if (pr->acpi_id == 0xff) + dev_info_once(&device->dev, + "Entry not well-defined, consider updating BIOS\n"); + else + dev_err(&device->dev, + "Failed to get unique processor _UID (0x%x)\n", + pr->acpi_id); return -ENODEV; } diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index a66e00fe31fe..777f6f7122b4 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -153,6 +153,7 @@ static void ghes_unmap(void __iomem *vaddr, enum fixed_addresses fixmap_idx) int ghes_estatus_pool_init(int num_ghes) { unsigned long addr, len; + int rc; ghes_estatus_pool = gen_pool_create(GHES_ESTATUS_POOL_MIN_ALLOC_ORDER, -1); if (!ghes_estatus_pool) @@ -164,7 +165,7 @@ int ghes_estatus_pool_init(int num_ghes) ghes_estatus_pool_size_request = PAGE_ALIGN(len); addr = (unsigned long)vmalloc(PAGE_ALIGN(len)); if (!addr) - return -ENOMEM; + goto err_pool_alloc; /* * New allocation must be visible in all pgd before it can be found by @@ -172,7 +173,19 @@ int ghes_estatus_pool_init(int num_ghes) */ vmalloc_sync_all(); - return gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1); + rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1); + if (rc) + goto err_pool_add; + + return 0; + +err_pool_add: + vfree((void *)addr); + +err_pool_alloc: + gen_pool_destroy(ghes_estatus_pool); + + return -ENOMEM; } static int map_gen_v2(struct ghes *ghes) @@ -483,7 +496,7 @@ static void ghes_do_proc(struct ghes *ghes, int sev, sec_sev; struct acpi_hest_generic_data *gdata; guid_t *sec_type; - guid_t *fru_id = &NULL_UUID_LE; + const guid_t *fru_id = &guid_null; char *fru_text = ""; sev = ghes_severity(estatus->error_severity); diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c index b2ef4c2ec955..fd66a736621c 100644 --- a/drivers/acpi/custom_method.c +++ b/drivers/acpi/custom_method.c @@ -49,8 +49,10 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, if ((*ppos > max_size) || (*ppos + count > max_size) || (*ppos + count < count) || - (count > uncopied_bytes)) + (count > uncopied_bytes)) { + kfree(buf); return -EINVAL; + } if (copy_from_user(buf + (*ppos), user_buf, count)) { kfree(buf); @@ -70,6 +72,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf, add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE); } + kfree(buf); return count; } diff --git a/drivers/acpi/hmat/hmat.c b/drivers/acpi/hmat/hmat.c index 96b7d39a97c6..8f9a28a870b0 100644 --- a/drivers/acpi/hmat/hmat.c +++ b/drivers/acpi/hmat/hmat.c @@ -14,14 +14,18 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/list_sort.h> +#include <linux/memory.h> +#include <linux/mutex.h> #include <linux/node.h> #include <linux/sysfs.h> -static __initdata u8 hmat_revision; +static u8 hmat_revision; -static __initdata LIST_HEAD(targets); -static __initdata LIST_HEAD(initiators); -static __initdata LIST_HEAD(localities); +static LIST_HEAD(targets); +static LIST_HEAD(initiators); +static LIST_HEAD(localities); + +static DEFINE_MUTEX(target_lock); /* * The defined enum order is used to prioritize attributes to break ties when @@ -36,11 +40,19 @@ enum locality_types { static struct memory_locality *localities_types[4]; +struct target_cache { + struct list_head node; + struct node_cache_attrs cache_attrs; +}; + struct memory_target { struct list_head node; unsigned int memory_pxm; unsigned int processor_pxm; struct node_hmem_attrs hmem_attrs; + struct list_head caches; + struct node_cache_attrs cache_attrs; + bool registered; }; struct memory_initiator { @@ -53,7 +65,7 @@ struct memory_locality { struct acpi_hmat_locality *hmat_loc; }; -static __init struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm) +static struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm) { struct memory_initiator *initiator; @@ -63,7 +75,7 @@ static __init struct memory_initiator *find_mem_initiator(unsigned int cpu_pxm) return NULL; } -static __init struct memory_target *find_mem_target(unsigned int mem_pxm) +static struct memory_target *find_mem_target(unsigned int mem_pxm) { struct memory_target *target; @@ -96,9 +108,6 @@ static __init void alloc_memory_target(unsigned int mem_pxm) { struct memory_target *target; - if (pxm_to_node(mem_pxm) == NUMA_NO_NODE) - return; - target = find_mem_target(mem_pxm); if (target) return; @@ -110,6 +119,7 @@ static __init void alloc_memory_target(unsigned int mem_pxm) target->memory_pxm = mem_pxm; target->processor_pxm = PXM_INVAL; list_add_tail(&target->node, &targets); + INIT_LIST_HEAD(&target->caches); } static __init const char *hmat_data_type(u8 type) @@ -148,7 +158,7 @@ static __init const char *hmat_data_type_suffix(u8 type) } } -static __init u32 hmat_normalize(u16 entry, u64 base, u8 type) +static u32 hmat_normalize(u16 entry, u64 base, u8 type) { u32 value; @@ -183,7 +193,7 @@ static __init u32 hmat_normalize(u16 entry, u64 base, u8 type) return value; } -static __init void hmat_update_target_access(struct memory_target *target, +static void hmat_update_target_access(struct memory_target *target, u8 type, u32 value) { switch (type) { @@ -314,7 +324,8 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header, const unsigned long end) { struct acpi_hmat_cache *cache = (void *)header; - struct node_cache_attrs cache_attrs; + struct memory_target *target; + struct target_cache *tcache; u32 attrs; if (cache->header.length < sizeof(*cache)) { @@ -328,37 +339,47 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header, cache->memory_PD, cache->cache_size, attrs, cache->number_of_SMBIOShandles); - cache_attrs.size = cache->cache_size; - cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4; - cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16; + target = find_mem_target(cache->memory_PD); + if (!target) + return 0; + + tcache = kzalloc(sizeof(*tcache), GFP_KERNEL); + if (!tcache) { + pr_notice_once("Failed to allocate HMAT cache info\n"); + return 0; + } + + tcache->cache_attrs.size = cache->cache_size; + tcache->cache_attrs.level = (attrs & ACPI_HMAT_CACHE_LEVEL) >> 4; + tcache->cache_attrs.line_size = (attrs & ACPI_HMAT_CACHE_LINE_SIZE) >> 16; switch ((attrs & ACPI_HMAT_CACHE_ASSOCIATIVITY) >> 8) { case ACPI_HMAT_CA_DIRECT_MAPPED: - cache_attrs.indexing = NODE_CACHE_DIRECT_MAP; + tcache->cache_attrs.indexing = NODE_CACHE_DIRECT_MAP; break; case ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING: - cache_attrs.indexing = NODE_CACHE_INDEXED; + tcache->cache_attrs.indexing = NODE_CACHE_INDEXED; break; case ACPI_HMAT_CA_NONE: default: - cache_attrs.indexing = NODE_CACHE_OTHER; + tcache->cache_attrs.indexing = NODE_CACHE_OTHER; break; } switch ((attrs & ACPI_HMAT_WRITE_POLICY) >> 12) { case ACPI_HMAT_CP_WB: - cache_attrs.write_policy = NODE_CACHE_WRITE_BACK; + tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_BACK; break; case ACPI_HMAT_CP_WT: - cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH; + tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_THROUGH; break; case ACPI_HMAT_CP_NONE: default: - cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER; + tcache->cache_attrs.write_policy = NODE_CACHE_WRITE_OTHER; break; } + list_add_tail(&tcache->node, &target->caches); - node_add_cache(pxm_to_node(cache->memory_PD), &cache_attrs); return 0; } @@ -435,7 +456,7 @@ static __init int srat_parse_mem_affinity(union acpi_subtable_headers *header, return 0; } -static __init u32 hmat_initiator_perf(struct memory_target *target, +static u32 hmat_initiator_perf(struct memory_target *target, struct memory_initiator *initiator, struct acpi_hmat_locality *hmat_loc) { @@ -473,7 +494,7 @@ static __init u32 hmat_initiator_perf(struct memory_target *target, hmat_loc->data_type); } -static __init bool hmat_update_best(u8 type, u32 value, u32 *best) +static bool hmat_update_best(u8 type, u32 value, u32 *best) { bool updated = false; @@ -517,7 +538,7 @@ static int initiator_cmp(void *priv, struct list_head *a, struct list_head *b) return ia->processor_pxm - ib->processor_pxm; } -static __init void hmat_register_target_initiators(struct memory_target *target) +static void hmat_register_target_initiators(struct memory_target *target) { static DECLARE_BITMAP(p_nodes, MAX_NUMNODES); struct memory_initiator *initiator; @@ -577,29 +598,89 @@ static __init void hmat_register_target_initiators(struct memory_target *target) } } -static __init void hmat_register_target_perf(struct memory_target *target) +static void hmat_register_target_cache(struct memory_target *target) +{ + unsigned mem_nid = pxm_to_node(target->memory_pxm); + struct target_cache *tcache; + + list_for_each_entry(tcache, &target->caches, node) + node_add_cache(mem_nid, &tcache->cache_attrs); +} + +static void hmat_register_target_perf(struct memory_target *target) { unsigned mem_nid = pxm_to_node(target->memory_pxm); node_set_perf_attrs(mem_nid, &target->hmem_attrs, 0); } -static __init void hmat_register_targets(void) +static void hmat_register_target(struct memory_target *target) { - struct memory_target *target; + int nid = pxm_to_node(target->memory_pxm); - list_for_each_entry(target, &targets, node) { + /* + * Skip offline nodes. This can happen when memory + * marked EFI_MEMORY_SP, "specific purpose", is applied + * to all the memory in a promixity domain leading to + * the node being marked offline / unplugged, or if + * memory-only "hotplug" node is offline. + */ + if (nid == NUMA_NO_NODE || !node_online(nid)) + return; + + mutex_lock(&target_lock); + if (!target->registered) { hmat_register_target_initiators(target); + hmat_register_target_cache(target); hmat_register_target_perf(target); + target->registered = true; } + mutex_unlock(&target_lock); +} + +static void hmat_register_targets(void) +{ + struct memory_target *target; + + list_for_each_entry(target, &targets, node) + hmat_register_target(target); +} + +static int hmat_callback(struct notifier_block *self, + unsigned long action, void *arg) +{ + struct memory_target *target; + struct memory_notify *mnb = arg; + int pxm, nid = mnb->status_change_nid; + + if (nid == NUMA_NO_NODE || action != MEM_ONLINE) + return NOTIFY_OK; + + pxm = node_to_pxm(nid); + target = find_mem_target(pxm); + if (!target) + return NOTIFY_OK; + + hmat_register_target(target); + return NOTIFY_OK; } +static struct notifier_block hmat_callback_nb = { + .notifier_call = hmat_callback, + .priority = 2, +}; + static __init void hmat_free_structures(void) { struct memory_target *target, *tnext; struct memory_locality *loc, *lnext; struct memory_initiator *initiator, *inext; + struct target_cache *tcache, *cnext; list_for_each_entry_safe(target, tnext, &targets, node) { + list_for_each_entry_safe(tcache, cnext, &target->caches, node) { + list_del(&tcache->node); + kfree(tcache); + } list_del(&target->node); kfree(target); } @@ -658,6 +739,10 @@ static __init int hmat_init(void) } } hmat_register_targets(); + + /* Keep the table and structures if the notifier may use them */ + if (!register_hotmemory_notifier(&hmat_callback_nb)) + return 0; out_put: hmat_free_structures(); acpi_put_table(tbl); diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index d2549ae65e1b..dea8a60e18a4 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -449,8 +449,10 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * No IRQ known to the ACPI subsystem - maybe the BIOS / * driver reported one, then use it. Exit in any case. */ - if (!acpi_pci_irq_valid(dev, pin)) + if (!acpi_pci_irq_valid(dev, pin)) { + kfree(entry); return 0; + } if (acpi_isa_register_gsi(dev)) dev_warn(&dev->dev, "PCI INT %c: no GSI\n", diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index db11f7771ef1..00a6da2121be 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -661,7 +661,7 @@ int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering, ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link %s is referenced\n", acpi_device_bid(link->device))); - return (link->irq.active); + return link->irq.active; } /* @@ -712,7 +712,7 @@ int acpi_pci_link_free_irq(acpi_handle handle) acpi_evaluate_object(link->device->handle, "_DIS", NULL, NULL); mutex_unlock(&acpi_link_lock); - return (link->irq.active); + return link->irq.active; } /* -------------------------------------------------------------------------- |