diff options
author | Mark Brown <broonie@linaro.org> | 2014-05-23 14:50:06 +0100 |
---|---|---|
committer | Mark Brown <broonie@linaro.org> | 2014-05-23 14:50:06 +0100 |
commit | 718533b750ffe16571620d7a75807c0179590061 (patch) | |
tree | 2c0f2b0aa7d67aa8ba139f403774266f38f9a084 | |
parent | 8c0f85d6509b999b1cf1e5ff3e0ff81a60a36f93 (diff) | |
parent | 244df97e7a9f8a3919c8684c061c565fe0f55f1d (diff) |
Merge branch 'linux-linaro-lsk' into linux-linaro-lsk-rt
-rw-r--r-- | arch/arm64/include/asm/pgtable.h | 52 |
1 files changed, 24 insertions, 28 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 8af30ab8d3c2..3e59ab4f037f 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -222,36 +222,36 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, #define __HAVE_ARCH_PTE_SPECIAL -/* - * Software PMD bits for THP - */ +static inline pte_t pmd_pte(pmd_t pmd) +{ + return __pte(pmd_val(pmd)); +} -#define PMD_SECT_DIRTY (_AT(pmdval_t, 1) << 55) -#define PMD_SECT_SPLITTING (_AT(pmdval_t, 1) << 57) +static inline pmd_t pte_pmd(pte_t pte) +{ + return __pmd(pte_val(pte)); +} /* * THP definitions. */ -#define pmd_young(pmd) (pmd_val(pmd) & PMD_SECT_AF) - -#define __HAVE_ARCH_PMD_WRITE -#define pmd_write(pmd) (!(pmd_val(pmd) & PMD_SECT_RDONLY)) #ifdef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_trans_huge(pmd) (pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT)) -#define pmd_trans_splitting(pmd) (pmd_val(pmd) & PMD_SECT_SPLITTING) +#define pmd_trans_splitting(pmd) pte_special(pmd_pte(pmd)) #endif -#define PMD_BIT_FUNC(fn,op) \ -static inline pmd_t pmd_##fn(pmd_t pmd) { pmd_val(pmd) op; return pmd; } +#define pmd_young(pmd) pte_young(pmd_pte(pmd)) +#define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd))) +#define pmd_mksplitting(pmd) pte_pmd(pte_mkspecial(pmd_pte(pmd))) +#define pmd_mkold(pmd) pte_pmd(pte_mkold(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_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd))) +#define pmd_mknotpresent(pmd) (__pmd(pmd_val(pmd) &= ~PMD_TYPE_MASK)) -PMD_BIT_FUNC(wrprotect, |= PMD_SECT_RDONLY); -PMD_BIT_FUNC(mkold, &= ~PMD_SECT_AF); -PMD_BIT_FUNC(mksplitting, |= PMD_SECT_SPLITTING); -PMD_BIT_FUNC(mkwrite, &= ~PMD_SECT_RDONLY); -PMD_BIT_FUNC(mkdirty, |= PMD_SECT_DIRTY); -PMD_BIT_FUNC(mkyoung, |= PMD_SECT_AF); -PMD_BIT_FUNC(mknotpresent, &= ~PMD_TYPE_MASK); +#define __HAVE_ARCH_PMD_WRITE +#define pmd_write(pmd) pte_write(pmd_pte(pmd)) #define pmd_mkhuge(pmd) (__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT)) @@ -261,15 +261,6 @@ PMD_BIT_FUNC(mknotpresent, &= ~PMD_TYPE_MASK); #define pmd_page(pmd) pfn_to_page(__phys_to_pfn(pmd_val(pmd) & PHYS_MASK)) -static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) -{ - const pmdval_t mask = PMD_SECT_USER | PMD_SECT_PXN | PMD_SECT_UXN | - PMD_SECT_RDONLY | PMD_SECT_PROT_NONE | - PMD_SECT_VALID; - pmd_val(pmd) = (pmd_val(pmd) & ~mask) | (pgprot_val(newprot) & mask); - return pmd; -} - #define set_pmd_at(mm, addr, pmdp, pmd) set_pmd(pmdp, pmd) static inline int has_transparent_hugepage(void) @@ -372,6 +363,11 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) return pte; } +static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot) +{ + return pte_pmd(pte_modify(pmd_pte(pmd), newprot)); +} + extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern pgd_t idmap_pg_dir[PTRS_PER_PGD]; |