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-rw-r--r--include/asm-x86/pat.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-x86/pat.h b/include/asm-x86/pat.h
index 8b822b5a1786..88f60cc6a227 100644
--- a/include/asm-x86/pat.h
+++ b/include/asm-x86/pat.h
@@ -4,7 +4,13 @@
#include <linux/types.h>
+#ifdef CONFIG_X86_PAT
extern int pat_wc_enabled;
+extern void validate_pat_support(struct cpuinfo_x86 *c);
+#else
+static const int pat_wc_enabled = 0;
+static inline void validate_pat_support(struct cpuinfo_x86 *c) { }
+#endif
extern void pat_init(void);
@@ -12,5 +18,7 @@ extern int reserve_memtype(u64 start, u64 end,
unsigned long req_type, unsigned long *ret_type);
extern int free_memtype(u64 start, u64 end);
+extern void pat_disable(char *reason);
+
#endif