diff options
Diffstat (limited to 'drivers/acpi/numa')
-rw-r--r-- | drivers/acpi/numa/srat.c | 77 |
1 files changed, 27 insertions, 50 deletions
diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c index 3b09fd39ee..e3f26e7163 100644 --- a/drivers/acpi/numa/srat.c +++ b/drivers/acpi/numa/srat.c @@ -213,16 +213,21 @@ __weak int __init numa_fill_memblks(u64 start, u64 end) return NUMA_NO_MEMBLK; } -#if defined(CONFIG_X86) || defined(CONFIG_ARM64) || defined(CONFIG_LOONGARCH) /* * Callback for SLIT parsing. pxm_to_node() returns NUMA_NO_NODE for * I/O localities since SRAT does not list them. I/O localities are * not supported at this point. */ -void __init acpi_numa_slit_init(struct acpi_table_slit *slit) +static int __init acpi_parse_slit(struct acpi_table_header *table) { + struct acpi_table_slit *slit = (struct acpi_table_slit *)table; int i, j; + if (!slit_valid(slit)) { + pr_info("SLIT table looks invalid. Not used.\n"); + return -EINVAL; + } + for (i = 0; i < slit->locality_count; i++) { const int from_node = pxm_to_node(i); @@ -239,28 +244,34 @@ void __init acpi_numa_slit_init(struct acpi_table_slit *slit) slit->entry[slit->locality_count * i + j]); } } + + return 0; } -/* - * Default callback for parsing of the Proximity Domain <-> Memory - * Area mappings - */ -int __init -acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) +static int parsed_numa_memblks __initdata; + +static int __init +acpi_parse_memory_affinity(union acpi_subtable_headers *header, + const unsigned long table_end) { + struct acpi_srat_mem_affinity *ma; u64 start, end; u32 hotpluggable; int node, pxm; + ma = (struct acpi_srat_mem_affinity *)header; + + acpi_table_print_srat_entry(&header->common); + if (srat_disabled()) - goto out_err; + return 0; if (ma->header.length < sizeof(struct acpi_srat_mem_affinity)) { pr_err("SRAT: Unexpected header length: %d\n", ma->header.length); goto out_err_bad_srat; } if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0) - goto out_err; + return 0; hotpluggable = IS_ENABLED(CONFIG_MEMORY_HOTPLUG) && (ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE); @@ -298,11 +309,15 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) max_possible_pfn = max(max_possible_pfn, PFN_UP(end - 1)); + parsed_numa_memblks++; + return 0; + out_err_bad_srat: + /* Just disable SRAT, but do not fail and ignore errors. */ bad_srat(); -out_err: - return -EINVAL; + + return 0; } static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, @@ -345,26 +360,6 @@ static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, (*fake_pxm)++; return 0; } -#else -static int __init acpi_parse_cfmws(union acpi_subtable_headers *header, - void *arg, const unsigned long table_end) -{ - return 0; -} -#endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */ - -static int __init acpi_parse_slit(struct acpi_table_header *table) -{ - struct acpi_table_slit *slit = (struct acpi_table_slit *)table; - - if (!slit_valid(slit)) { - pr_info("SLIT table looks invalid. Not used.\n"); - return -EINVAL; - } - acpi_numa_slit_init(slit); - - return 0; -} void __init __weak acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa) @@ -455,24 +450,6 @@ acpi_parse_gi_affinity(union acpi_subtable_headers *header, } #endif /* defined(CONFIG_X86) || defined (CONFIG_ARM64) */ -static int __initdata parsed_numa_memblks; - -static int __init -acpi_parse_memory_affinity(union acpi_subtable_headers * header, - const unsigned long end) -{ - struct acpi_srat_mem_affinity *memory_affinity; - - memory_affinity = (struct acpi_srat_mem_affinity *)header; - - acpi_table_print_srat_entry(&header->common); - - /* let architecture-dependent part to do it */ - if (!acpi_numa_memory_affinity_init(memory_affinity)) - parsed_numa_memblks++; - return 0; -} - static int __init acpi_parse_srat(struct acpi_table_header *table) { struct acpi_table_srat *srat = (struct acpi_table_srat *)table; |