diff options
Diffstat (limited to 'drivers/acpi/numa')
| -rw-r--r-- | drivers/acpi/numa/hmat.c | 44 | ||||
| -rw-r--r-- | drivers/acpi/numa/srat.c | 23 |
2 files changed, 53 insertions, 14 deletions
diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c index bfbb08b1e6af..9d9052258e92 100644 --- a/drivers/acpi/numa/hmat.c +++ b/drivers/acpi/numa/hmat.c @@ -108,6 +108,45 @@ static struct memory_target *find_mem_target(unsigned int mem_pxm) return NULL; } +/** + * hmat_get_extended_linear_cache_size - Retrieve the extended linear cache size + * @backing_res: resource from the backing media + * @nid: node id for the memory region + * @cache_size: (Output) size of extended linear cache. + * + * Return: 0 on success. Errno on failure. + * + */ +int hmat_get_extended_linear_cache_size(struct resource *backing_res, int nid, + resource_size_t *cache_size) +{ + unsigned int pxm = node_to_pxm(nid); + struct memory_target *target; + struct target_cache *tcache; + struct resource *res; + + target = find_mem_target(pxm); + if (!target) + return -ENOENT; + + list_for_each_entry(tcache, &target->caches, node) { + if (tcache->cache_attrs.address_mode != + NODE_CACHE_ADDR_MODE_EXTENDED_LINEAR) + continue; + + res = &target->memregions; + if (!resource_contains(res, backing_res)) + continue; + + *cache_size = tcache->cache_attrs.size; + return 0; + } + + *cache_size = 0; + return 0; +} +EXPORT_SYMBOL_NS_GPL(hmat_get_extended_linear_cache_size, "CXL"); + static struct memory_target *acpi_find_genport_target(u32 uid) { struct memory_target *target; @@ -506,6 +545,11 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header, switch ((attrs & ACPI_HMAT_CACHE_ASSOCIATIVITY) >> 8) { case ACPI_HMAT_CA_DIRECT_MAPPED: tcache->cache_attrs.indexing = NODE_CACHE_DIRECT_MAP; + /* Extended Linear mode is only valid if cache is direct mapped */ + if (cache->address_mode == ACPI_HMAT_CACHE_MODE_EXTENDED_LINEAR) { + tcache->cache_attrs.address_mode = + NODE_CACHE_ADDR_MODE_EXTENDED_LINEAR; + } break; case ACPI_HMAT_CA_COMPLEX_CACHE_INDEXING: tcache->cache_attrs.indexing = NODE_CACHE_INDEXED; diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c index 00ac0d7bb8c9..0a725e46d017 100644 --- a/drivers/acpi/numa/srat.c +++ b/drivers/acpi/numa/srat.c @@ -18,6 +18,7 @@ #include <linux/nodemask.h> #include <linux/topology.h> #include <linux/numa_memblks.h> +#include <linux/string_choices.h> static nodemask_t nodes_found_map = NODE_MASK_NONE; @@ -51,6 +52,7 @@ int node_to_pxm(int node) return PXM_INVAL; return node_to_pxm_map[node]; } +EXPORT_SYMBOL_GPL(node_to_pxm); static void __acpi_map_pxm_to_node(int pxm, int node) { @@ -187,8 +189,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) pr_debug("SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n", p->apic_id, p->local_sapic_eid, p->proximity_domain_lo, - (p->flags & ACPI_SRAT_CPU_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_CPU_ENABLED)); } break; @@ -200,8 +201,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) (unsigned long long)p->base_address, (unsigned long long)p->length, p->proximity_domain, - (p->flags & ACPI_SRAT_MEM_ENABLED) ? - "enabled" : "disabled", + str_enabled_disabled(p->flags & ACPI_SRAT_MEM_ENABLED), (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) ? " hot-pluggable" : "", (p->flags & ACPI_SRAT_MEM_NON_VOLATILE) ? @@ -216,8 +216,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) pr_debug("SRAT Processor (x2apicid[0x%08x]) in proximity domain %d %s\n", p->apic_id, p->proximity_domain, - (p->flags & ACPI_SRAT_CPU_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_CPU_ENABLED)); } break; @@ -228,8 +227,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n", p->acpi_processor_uid, p->proximity_domain, - (p->flags & ACPI_SRAT_GICC_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_GICC_ENABLED)); } break; @@ -247,8 +245,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) *(u16 *)(&p->device_handle[0]), *(u16 *)(&p->device_handle[2]), p->proximity_domain, - (p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED)); } else { /* * In this case we can rely on the device having a @@ -258,8 +255,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) (char *)(&p->device_handle[0]), (char *)(&p->device_handle[8]), p->proximity_domain, - (p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_GENERIC_AFFINITY_ENABLED)); } } break; @@ -271,8 +267,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) pr_debug("SRAT Processor (acpi id[0x%04x]) in proximity domain %d %s\n", p->acpi_processor_uid, p->proximity_domain, - (p->flags & ACPI_SRAT_RINTC_ENABLED) ? - "enabled" : "disabled"); + str_enabled_disabled(p->flags & ACPI_SRAT_RINTC_ENABLED)); } break; |