diff options
Diffstat (limited to 'arch/powerpc/include/asm/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/pgtable.h | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index 7d6eacf249cf..b999ca318985 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -3,6 +3,7 @@ #ifdef __KERNEL__ #ifndef __ASSEMBLY__ +#include <linux/mmdebug.h> #include <asm/processor.h> /* For TASK_SIZE */ #include <asm/mmu.h> #include <asm/page.h> @@ -33,10 +34,73 @@ static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; } static inline int pte_special(pte_t pte) { return pte_val(pte) & _PAGE_SPECIAL; } -static inline int pte_present(pte_t pte) { return pte_val(pte) & _PAGE_PRESENT; } static inline int pte_none(pte_t pte) { return (pte_val(pte) & ~_PTE_NONE_MASK) == 0; } 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); +} + +#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 pmd_numa pmd_numa +static inline int pmd_numa(pmd_t pmd) +{ + return pte_numa(pmd_pte(pmd)); +} + +#define pmd_mknonnuma pmd_mknonnuma +static inline pmd_t pmd_mknonnuma(pmd_t pmd) +{ + return pte_pmd(pte_mknonnuma(pmd_pte(pmd))); +} + +#define pmd_mknuma pmd_mknuma +static inline pmd_t pmd_mknuma(pmd_t pmd) +{ + return pte_pmd(pte_mknuma(pmd_pte(pmd))); +} + +# else + +static inline int pte_present(pte_t pte) +{ + return pte_val(pte) & _PAGE_PRESENT; +} +#endif /* CONFIG_NUMA_BALANCING */ + /* Conversion functions: convert a page and protection to a page entry, * and a page entry and page directory to the page they refer to. * |