cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

memtype.h (899B)

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