blob: 9ca760e430b9c9516256dcdc4b070bbeb5732d31 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MEMTYPE_H
#define _ASM_X86_MEMTYPE_H
#include <linux/types.h>
#include <asm/pgtable_types.h>
extern bool pat_enabled(void);
extern void pat_disable(const char *reason);
extern void pat_init(void);
extern void init_cache_modes(void);
extern int memtype_reserve(u64 start, u64 end,
enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
extern int memtype_free(u64 start, u64 end);
extern int memtype_kernel_map_sync(u64 base, unsigned long size,
enum page_cache_mode pcm);
extern int memtype_reserve_io(resource_size_t start, resource_size_t end,
enum page_cache_mode *pcm);
extern void memtype_free_io(resource_size_t start, resource_size_t end);
extern bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn);
bool x86_has_pat_wp(void);
enum page_cache_mode pgprot2cachemode(pgprot_t pgprot);
#endif /* _ASM_X86_MEMTYPE_H */
|
