#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);
unsigned long req_type, unsigned long *ret_type);
extern int free_memtype(u64 start, u64 end);
+extern void pat_disable(char *reason);
+
#endif