blob: dc8ee011882f6a904ca7668bc73492773580607a [file] [log] [blame]
* Copyright (C) 2013-15 Synopsys, Inc. (
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#include <linux/types.h>
#include <asm-generic/pgtable-nopmd.h>
static inline pte_t pmd_pte(pmd_t pmd)
return __pte(pmd_val(pmd));
static inline pmd_t pte_pmd(pte_t pte)
return __pmd(pte_val(pte));
#define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd)))
#define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))
#define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd)))
#define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd)))
#define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd)))
#define pmd_mkhuge(pmd) pte_pmd(pte_mkhuge(pmd_pte(pmd)))
#define pmd_mknotpresent(pmd) pte_pmd(pte_mknotpresent(pmd_pte(pmd)))
#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd)))
#define pmd_write(pmd) pte_write(pmd_pte(pmd))
#define pmd_young(pmd) pte_young(pmd_pte(pmd))
#define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd))
#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd))
#define mk_pmd(page, prot) pte_pmd(mk_pte(page, prot))
#define pmd_trans_huge(pmd) (pmd_val(pmd) & _PAGE_HW_SZ)
#define pfn_pmd(pfn, prot) (__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
* open-coded pte_modify() with additional retaining of HW_SZ bit
* so that pmd_trans_huge() remains true for this PMD
return __pmd((pmd_val(pmd) & (_PAGE_CHG_MASK | _PAGE_HW_SZ)) | pgprot_val(newprot));
static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd)
*pmdp = pmd;
extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
pmd_t *pmd);
/* Generic variants assume pgtable_t is struct page *, hence need for these */
extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
pgtable_t pgtable);
extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end);
/* We don't have hardware dirty/accessed bits, generic_pmdp_establish is fine.*/
#define pmdp_establish generic_pmdp_establish