diff options
Diffstat (limited to 'include/asm-powerpc/pgtable-ppc64.h')
| -rw-r--r-- | include/asm-powerpc/pgtable-ppc64.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index b2754d46be4..ab98a9c80b2 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -93,6 +93,9 @@ #define _PAGE_RW 0x0200 /* software: user write access allowed */ #define _PAGE_BUSY 0x0800 /* software: PTE & hash are busy */ +/* Strong Access Ordering */ +#define _PAGE_SAO (_PAGE_WRITETHRU | _PAGE_NO_CACHE | _PAGE_COHERENT) + #define _PAGE_BASE (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_COHERENT) #define _PAGE_WRENABLE (_PAGE_RW | _PAGE_DIRTY) @@ -312,13 +315,14 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, return; old = pte_update(mm, addr, ptep, _PAGE_RW, 0); } + static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { unsigned long old; - if ((pte_val(*ptep) & _PAGE_RW) == 0) - return; + if ((pte_val(*ptep) & _PAGE_RW) == 0) + return; old = pte_update(mm, addr, ptep, _PAGE_RW, 1); } |