diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/pgtable.h | 57 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pte-common.h | 5 |
2 files changed, 17 insertions, 45 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index d98c1ecc3266..f60d4ea8b50c 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -38,10 +38,9 @@ static inline int pte_none(pte_t pte) { return (pte_val(pte) & ~_PTE_NONE_MASK) static inline pgprot_t pte_pgprot(pte_t pte) { return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } #ifdef CONFIG_NUMA_BALANCING - static inline int pte_present(pte_t pte) { - return pte_val(pte) & (_PAGE_PRESENT | _PAGE_NUMA); + return pte_val(pte) & _PAGE_NUMA_MASK; } #define pte_present_nonuma pte_present_nonuma @@ -50,37 +49,6 @@ static inline int pte_present_nonuma(pte_t pte) return pte_val(pte) & (_PAGE_PRESENT); } -#define pte_numa pte_numa -static inline int pte_numa(pte_t pte) -{ - return (pte_val(pte) & - (_PAGE_NUMA|_PAGE_PRESENT)) == _PAGE_NUMA; -} - -#define pte_mknonnuma pte_mknonnuma -static inline pte_t pte_mknonnuma(pte_t pte) -{ - pte_val(pte) &= ~_PAGE_NUMA; - pte_val(pte) |= _PAGE_PRESENT | _PAGE_ACCESSED; - return pte; -} - -#define pte_mknuma pte_mknuma -static inline pte_t pte_mknuma(pte_t pte) -{ - /* - * We should not set _PAGE_NUMA on non present ptes. Also clear the - * present bit so that hash_page will return 1 and we collect this - * as numa fault. - */ - if (pte_present(pte)) { - pte_val(pte) |= _PAGE_NUMA; - pte_val(pte) &= ~_PAGE_PRESENT; - } else - VM_BUG_ON(1); - return pte; -} - #define ptep_set_numa ptep_set_numa static inline void ptep_set_numa(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -92,12 +60,6 @@ static inline void ptep_set_numa(struct mm_struct *mm, unsigned long addr, return; } -#define pmd_numa pmd_numa -static inline int pmd_numa(pmd_t pmd) -{ - return pte_numa(pmd_pte(pmd)); -} - #define pmdp_set_numa pmdp_set_numa static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp) @@ -109,16 +71,21 @@ static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr, return; } -#define pmd_mknonnuma pmd_mknonnuma -static inline pmd_t pmd_mknonnuma(pmd_t pmd) +/* + * Generic NUMA pte helpers expect pteval_t and pmdval_t types to exist + * which was inherited from x86. For the purposes of powerpc pte_basic_t and + * pmd_t are equivalent + */ +#define pteval_t pte_basic_t +#define pmdval_t pmd_t +static inline pteval_t ptenuma_flags(pte_t pte) { - return pte_pmd(pte_mknonnuma(pmd_pte(pmd))); + return pte_val(pte) & _PAGE_NUMA_MASK; } -#define pmd_mknuma pmd_mknuma -static inline pmd_t pmd_mknuma(pmd_t pmd) +static inline pmdval_t pmdnuma_flags(pmd_t pmd) { - return pte_pmd(pte_mknuma(pmd_pte(pmd))); + return pmd_val(pmd) & _PAGE_NUMA_MASK; } # else diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index 8d1569c29042..e040c3595129 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -98,6 +98,11 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void); _PAGE_USER | _PAGE_ACCESSED | \ _PAGE_RW | _PAGE_HWWRITE | _PAGE_DIRTY | _PAGE_EXEC) +#ifdef CONFIG_NUMA_BALANCING +/* Mask of bits that distinguish present and numa ptes */ +#define _PAGE_NUMA_MASK (_PAGE_NUMA|_PAGE_PRESENT) +#endif + /* * We define 2 sets of base prot bits, one for basic pages (ie, * cacheable kernel and user pages) and one for non cacheable |