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path: root/drivers/acpi/numa/srat.c
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Diffstat (limited to 'drivers/acpi/numa/srat.c')
-rw-r--r--drivers/acpi/numa/srat.c77
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;