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-rw-r--r--drivers/acpi/numa.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 7e0649d11da2..af0c8d5c845b 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -40,6 +40,7 @@ static int node_to_pxm_map[MAX_NUMNODES]
= { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
unsigned char acpi_srat_revision __initdata;
+int acpi_numa __initdata;
int pxm_to_node(int pxm)
{
@@ -197,6 +198,17 @@ static int __init slit_valid(struct acpi_table_slit *slit)
return 1;
}
+void __init bad_srat(void)
+{
+ pr_err("SRAT: SRAT not used.\n");
+ acpi_numa = -1;
+}
+
+int __init srat_disabled(void)
+{
+ return acpi_numa < 0;
+}
+
#if defined(CONFIG_X86) || defined(CONFIG_ARM64)
/*
* Callback for SLIT parsing. pxm_to_node() returns NUMA_NO_NODE for