OpenCloudOS-Kernel/arch/x86/include/asm/pat.h

30 lines
702 B
C

#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);
extern int reserve_memtype(u64 start, u64 end,
unsigned long req_type, unsigned long *ret_type);
extern int free_memtype(u64 start, u64 end);
extern int kernel_map_sync_memtype(u64 base, unsigned long size,
unsigned long flag);
int io_reserve_memtype(resource_size_t start, resource_size_t end,
unsigned long *type);
void io_free_memtype(resource_size_t start, resource_size_t end);
int default_is_untracked_pat_range(u64 start, u64 end);
#endif /* _ASM_X86_PAT_H */