diff options
Diffstat (limited to 'drivers/acpi/numa/srat.c')
| -rw-r--r-- | drivers/acpi/numa/srat.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c index 3ca22db3ed..3b09fd39ee 100644 --- a/drivers/acpi/numa/srat.c +++ b/drivers/acpi/numa/srat.c @@ -29,6 +29,8 @@ static int node_to_pxm_map[MAX_NUMNODES] unsigned char acpi_srat_revision __initdata; static int acpi_numa __initdata; +static int last_real_pxm; + void __init disable_srat(void) { acpi_numa = -1; @@ -541,6 +543,7 @@ int __init acpi_numa_init(void) if (node_to_pxm_map[i] > fake_pxm) fake_pxm = node_to_pxm_map[i]; } + last_real_pxm = fake_pxm; fake_pxm++; acpi_table_parse_cedt(ACPI_CEDT_TYPE_CFMWS, acpi_parse_cfmws, &fake_pxm); @@ -552,6 +555,14 @@ int __init acpi_numa_init(void) return 0; } +bool acpi_node_backed_by_real_pxm(int nid) +{ + int pxm = node_to_pxm(nid); + + return pxm <= last_real_pxm; +} +EXPORT_SYMBOL_GPL(acpi_node_backed_by_real_pxm); + static int acpi_get_pxm(acpi_handle h) { unsigned long long pxm; |