forked from Minki/linux
1965aae3c9
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
29 lines
569 B
C
29 lines
569 B
C
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
|
|
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
|
|
|
|
#ifdef CONFIG_PARAVIRT
|
|
#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd)
|
|
#else
|
|
#define SHARED_KERNEL_PMD 1
|
|
#endif
|
|
|
|
/*
|
|
* PGDIR_SHIFT determines what a top-level page table entry can map
|
|
*/
|
|
#define PGDIR_SHIFT 30
|
|
#define PTRS_PER_PGD 4
|
|
|
|
/*
|
|
* PMD_SHIFT determines the size of the area a middle-level
|
|
* page table can map
|
|
*/
|
|
#define PMD_SHIFT 21
|
|
#define PTRS_PER_PMD 512
|
|
|
|
/*
|
|
* entries per page directory level
|
|
*/
|
|
#define PTRS_PER_PTE 512
|
|
|
|
#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
|