| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 2 | #ifndef _ASM_X86_PAT_H |
| 3 | #define _ASM_X86_PAT_H |
| venkatesh.pallipadi@intel.com | 2e5d9c8 | 2008-03-18 17:00:14 -0700 | [diff] [blame] | 4 | |
| 5 | #include <linux/types.h> |
| Jeremy Fitzhardinge | a964e33 | 2009-03-04 17:14:30 -0800 | [diff] [blame] | 6 | #include <asm/pgtable_types.h> |
| venkatesh.pallipadi@intel.com | 2e5d9c8 | 2008-03-18 17:00:14 -0700 | [diff] [blame] | 7 | |
| Luis R. Rodriguez | cb32edf | 2015-05-26 10:28:15 +0200 | [diff] [blame] | 8 | bool pat_enabled(void); |
| Toshi Kani | 224bb1e | 2016-03-23 15:41:58 -0600 | [diff] [blame] | 9 | void pat_disable(const char *reason); |
| venkatesh.pallipadi@intel.com | 2e5d9c8 | 2008-03-18 17:00:14 -0700 | [diff] [blame] | 10 | extern void pat_init(void); |
| Mikulas Patocka | 99c13b8 | 2017-07-04 19:04:23 -0400 | [diff] [blame] | 11 | extern void init_cache_modes(void); |
| venkatesh.pallipadi@intel.com | 2e5d9c8 | 2008-03-18 17:00:14 -0700 | [diff] [blame] | 12 | |
| 13 | extern int reserve_memtype(u64 start, u64 end, |
| Juergen Gross | e00c8cc | 2014-11-03 14:01:59 +0100 | [diff] [blame] | 14 | enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm); |
| venkatesh.pallipadi@intel.com | 2e5d9c8 | 2008-03-18 17:00:14 -0700 | [diff] [blame] | 15 | extern int free_memtype(u64 start, u64 end); |
| 16 | |
| Venkatesh Pallipadi | 7880f74 | 2009-02-24 17:35:13 -0800 | [diff] [blame] | 17 | extern int kernel_map_sync_memtype(u64 base, unsigned long size, |
| Juergen Gross | b14097b | 2014-11-03 14:01:58 +0100 | [diff] [blame] | 18 | enum page_cache_mode pcm); |
| Venkatesh Pallipadi | 7880f74 | 2009-02-24 17:35:13 -0800 | [diff] [blame] | 19 | |
| Venkatesh Pallipadi | 9fd126bc | 2009-07-10 09:57:34 -0700 | [diff] [blame] | 20 | int io_reserve_memtype(resource_size_t start, resource_size_t end, |
| Juergen Gross | 49a3b3c | 2014-11-03 14:01:54 +0100 | [diff] [blame] | 21 | enum page_cache_mode *pcm); |
| Venkatesh Pallipadi | 9fd126bc | 2009-07-10 09:57:34 -0700 | [diff] [blame] | 22 | |
| 23 | void io_free_memtype(resource_size_t start, resource_size_t end); |
| 24 | |
| Haozhong Zhang | b8d7044 | 2017-12-20 15:29:28 +0800 | [diff] [blame] | 25 | bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn); |
| 26 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 27 | #endif /* _ASM_X86_PAT_H */ |
