path: root/include
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authorKurt Garloff <kurt@garloff.de>2012-01-17 04:18:02 -0500
committerLen Brown <len.brown@intel.com>2012-01-17 04:19:04 -0500
commit8df0eb7c9d96f9e82f233ee8b74e0f0c8471f868 (patch)
tree7e9de0df4e4c03b21f07485d2b141f874c5e9b30 /include
parent805a6af8dba5dfdd35ec35dc52ec0122400b2610 (diff)
ACPI: Store SRAT table revision
In SRAT v1, we had 8bit proximity domain (PXM) fields; SRAT v2 provides 32bits for these. The new fields were reserved before. According to the ACPI spec, the OS must disregrard reserved fields. In order to know whether or not, we must know what version the SRAT table has. This patch stores the SRAT table revision for later consumption by arch specific __init functions. Signed-off-by: Kurt Garloff <kurt@garloff.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
1 files changed, 1 insertions, 0 deletions
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 17397267217..451823cb883 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -15,6 +15,7 @@ extern int pxm_to_node(int);
extern int node_to_pxm(int);
extern void __acpi_map_pxm_to_node(int, int);
extern int acpi_map_pxm_to_node(int);
+extern unsigned char acpi_srat_revision;
#endif /* CONFIG_ACPI_NUMA */
#endif /* __ACP_NUMA_H */