/arch/mips/include/asm/pgalloc.h
http://github.com/mirrors/linux · C Header · 110 lines · 71 code · 25 blank · 14 comment · 3 complexity · 60fd9b29a43c0089ecb9ba986dcfc391 MD5 · raw file
- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1994 - 2001, 2003 by Ralf Baechle
- * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc.
- */
- #ifndef _ASM_PGALLOC_H
- #define _ASM_PGALLOC_H
- #include <linux/highmem.h>
- #include <linux/mm.h>
- #include <linux/sched.h>
- #include <asm-generic/pgalloc.h> /* for pte_{alloc,free}_one */
- static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
- pte_t *pte)
- {
- set_pmd(pmd, __pmd((unsigned long)pte));
- }
- static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- pgtable_t pte)
- {
- set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
- }
- #define pmd_pgtable(pmd) pmd_page(pmd)
- /*
- * Initialize a new pmd table with invalid pointers.
- */
- extern void pmd_init(unsigned long page, unsigned long pagetable);
- #ifndef __PAGETABLE_PMD_FOLDED
- static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
- {
- set_pud(pud, __pud((unsigned long)pmd));
- }
- #endif
- /*
- * Initialize a new pgd / pmd table with invalid pointers.
- */
- extern void pgd_init(unsigned long page);
- extern pgd_t *pgd_alloc(struct mm_struct *mm);
- static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
- {
- free_pages((unsigned long)pgd, PGD_ORDER);
- }
- #define __pte_free_tlb(tlb,pte,address) \
- do { \
- pgtable_pte_page_dtor(pte); \
- tlb_remove_page((tlb), pte); \
- } while (0)
- #ifndef __PAGETABLE_PMD_FOLDED
- static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
- {
- pmd_t *pmd;
- pmd = (pmd_t *) __get_free_pages(GFP_KERNEL, PMD_ORDER);
- if (pmd)
- pmd_init((unsigned long)pmd, (unsigned long)invalid_pte_table);
- return pmd;
- }
- static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
- {
- free_pages((unsigned long)pmd, PMD_ORDER);
- }
- #define __pmd_free_tlb(tlb, x, addr) pmd_free((tlb)->mm, x)
- #endif
- #ifndef __PAGETABLE_PUD_FOLDED
- static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
- {
- pud_t *pud;
- pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_ORDER);
- if (pud)
- pud_init((unsigned long)pud, (unsigned long)invalid_pmd_table);
- return pud;
- }
- static inline void pud_free(struct mm_struct *mm, pud_t *pud)
- {
- free_pages((unsigned long)pud, PUD_ORDER);
- }
- static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
- {
- set_p4d(p4d, __p4d((unsigned long)pud));
- }
- #define __pud_free_tlb(tlb, x, addr) pud_free((tlb)->mm, x)
- #endif /* __PAGETABLE_PUD_FOLDED */
- extern void pagetable_init(void);
- #endif /* _ASM_PGALLOC_H */