diff options
Diffstat (limited to 'include/asm-powerpc/pgtable.h')
| -rw-r--r-- | include/asm-powerpc/pgtable.h | 50 |
1 files changed, 16 insertions, 34 deletions
diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h index 10f52743f4f..c7142c7e0e0 100644 --- a/include/asm-powerpc/pgtable.h +++ b/include/asm-powerpc/pgtable.h @@ -272,7 +272,10 @@ static inline pte_t pte_mkhuge(pte_t pte) { return pte; } /* Atomic PTE updates */ -static inline unsigned long pte_update(pte_t *p, unsigned long clr) +static inline unsigned long pte_update(struct mm_struct *mm, + unsigned long addr, + pte_t *ptep, unsigned long clr, + int huge) { unsigned long old, tmp; @@ -283,20 +286,15 @@ static inline unsigned long pte_update(pte_t *p, unsigned long clr) andc %1,%0,%4 \n\ stdcx. %1,0,%3 \n\ bne- 1b" - : "=&r" (old), "=&r" (tmp), "=m" (*p) - : "r" (p), "r" (clr), "m" (*p), "i" (_PAGE_BUSY) + : "=&r" (old), "=&r" (tmp), "=m" (*ptep) + : "r" (ptep), "r" (clr), "m" (*ptep), "i" (_PAGE_BUSY) : "cc" ); + + if (old & _PAGE_HASHPTE) + hpte_need_flush(mm, addr, ptep, old, huge); return old; } -/* PTE updating functions, this function puts the PTE in the - * batch, doesn't actually triggers the hash flush immediately, - * you need to call flush_tlb_pending() to do that. - * Pass -1 for "normal" size (4K or 64K) - */ -extern void hpte_update(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, unsigned long pte, int huge); - static inline int __ptep_test_and_clear_young(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -304,11 +302,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm, if ((pte_val(*ptep) & (_PAGE_ACCESSED | _PAGE_HASHPTE)) == 0) return 0; - old = pte_update(ptep, _PAGE_ACCESSED); - if (old & _PAGE_HASHPTE) { - hpte_update(mm, addr, ptep, old, 0); - flush_tlb_pending(); - } + old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0); return (old & _PAGE_ACCESSED) != 0; } #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG @@ -331,9 +325,7 @@ static inline int __ptep_test_and_clear_dirty(struct mm_struct *mm, if ((pte_val(*ptep) & _PAGE_DIRTY) == 0) return 0; - old = pte_update(ptep, _PAGE_DIRTY); - if (old & _PAGE_HASHPTE) - hpte_update(mm, addr, ptep, old, 0); + old = pte_update(mm, addr, ptep, _PAGE_DIRTY, 0); return (old & _PAGE_DIRTY) != 0; } #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY @@ -352,9 +344,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, if ((pte_val(*ptep) & _PAGE_RW) == 0) return; - old = pte_update(ptep, _PAGE_RW); - if (old & _PAGE_HASHPTE) - hpte_update(mm, addr, ptep, old, 0); + old = pte_update(mm, addr, ptep, _PAGE_RW, 0); } /* @@ -378,7 +368,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, ({ \ int __dirty = __ptep_test_and_clear_dirty((__vma)->vm_mm, __address, \ __ptep); \ - flush_tlb_page(__vma, __address); \ __dirty; \ }) @@ -386,20 +375,14 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - unsigned long old = pte_update(ptep, ~0UL); - - if (old & _PAGE_HASHPTE) - hpte_update(mm, addr, ptep, old, 0); + unsigned long old = pte_update(mm, addr, ptep, ~0UL, 0); return __pte(old); } static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t * ptep) { - unsigned long old = pte_update(ptep, ~0UL); - - if (old & _PAGE_HASHPTE) - hpte_update(mm, addr, ptep, old, 0); + pte_update(mm, addr, ptep, ~0UL, 0); } /* @@ -408,10 +391,8 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { - if (pte_present(*ptep)) { + if (pte_present(*ptep)) pte_clear(mm, addr, ptep); - flush_tlb_pending(); - } pte = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS); *ptep = pte; } @@ -522,6 +503,7 @@ void pgtable_cache_init(void); return pt; } + #include <asm-generic/pgtable.h> #endif /* __ASSEMBLY__ */ |