blob: 6a59a6d0cc508857299afa9b06b58a8d6cc2e5f5 (
plain) (
tree)
|
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#ifndef __ASSEMBLY__
#include <linux/types.h>
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pudval_t;
typedef u64 p4dval_t;
typedef u64 pgdval_t;
typedef u64 pgprotval_t;
typedef union {
struct {
unsigned long pte_low, pte_high;
};
pteval_t pte;
} pte_t;
#endif /* !__ASSEMBLY__ */
#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
#define MAX_POSSIBLE_PHYSMEM_BITS 36
#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
|
