include/asm-x86/pat.h

   1
   2 #ifndef _ASM_PAT_H
   3 #define _ASM_PAT_H 1
   4
   5 #include <linux/types.h>
   6
   7 #ifdef CONFIG_X86_PAT
   8 extern int pat_wc_enabled;
   9 extern void validate_pat_support(struct cpuinfo_x86 *c);
  10 #else
  11 static const int pat_wc_enabled = 0;
  12 static inline void validate_pat_support(struct cpuinfo_x86 *c) { }
  13 #endif
  14
  15 extern void pat_init(void);
  16
  17 extern int reserve_memtype(u64 start, u64 end,
  18                 unsigned long req_type, unsigned long *ret_type);
  19 extern int free_memtype(u64 start, u64 end);
  20
  21 extern void pat_disable(char *reason);
  22
  23 #endif
  24