diff options
Diffstat (limited to 'arch/x86/include/asm/pat.h')
| -rw-r--r-- | arch/x86/include/asm/pat.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h new file mode 100644 index 000000000..91bc4ba95 --- /dev/null +++ b/arch/x86/include/asm/pat.h @@ -0,0 +1,28 @@ +#ifndef _ASM_X86_PAT_H +#define _ASM_X86_PAT_H + +#include <linux/types.h> +#include <asm/pgtable_types.h> + +#ifdef CONFIG_X86_PAT +extern int pat_enabled; +#else +static const int pat_enabled; +#endif + +extern void pat_init(void); +void pat_init_cache_modes(void); + +extern int reserve_memtype(u64 start, u64 end, + enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm); +extern int free_memtype(u64 start, u64 end); + +extern int kernel_map_sync_memtype(u64 base, unsigned long size, + enum page_cache_mode pcm); + +int io_reserve_memtype(resource_size_t start, resource_size_t end, + enum page_cache_mode *pcm); + +void io_free_memtype(resource_size_t start, resource_size_t end); + +#endif /* _ASM_X86_PAT_H */ |