diff options
Diffstat (limited to 'arch/parisc/include/asm/pgtable.h')
| -rw-r--r-- | arch/parisc/include/asm/pgtable.h | 77 |
1 files changed, 39 insertions, 38 deletions
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 5656395c95ee..2c139a4dbf4b 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -12,7 +12,7 @@ #include <asm/fixmap.h> -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ /* * we simulate an x86-style page table for the linux mm code */ @@ -73,16 +73,7 @@ extern void __update_cache(pte_t pte); mb(); \ } while(0) -#define set_pte_at(mm, addr, pteptr, pteval) \ - do { \ - if (pte_present(pteval) && \ - pte_user(pteval)) \ - __update_cache(pteval); \ - *(pteptr) = (pteval); \ - purge_tlb_entries(mm, addr); \ - } while (0) - -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #define pte_ERROR(e) \ printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) @@ -235,7 +226,7 @@ extern void __update_cache(pte_t pte); #define PxD_FLAG_SHIFT (4) #define PxD_VALUE_SHIFT (PFN_PTE_SHIFT-PxD_FLAG_SHIFT) -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_USER) #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE) @@ -285,7 +276,7 @@ extern unsigned long *empty_zero_page; #define pte_none(x) (pte_val(x) == 0) #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) #define pte_user(x) (pte_val(x) & _PAGE_USER) -#define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) +#define pte_clear(mm, addr, xp) set_pte_at((mm), (addr), (xp), __pte(0)) #define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK) #define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) @@ -331,7 +322,7 @@ static inline pte_t pte_mkold(pte_t pte) { pte_val(pte) &= ~_PAGE_ACCESSED; retu static inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= ~_PAGE_WRITE; return pte; } static inline pte_t pte_mkdirty(pte_t pte) { pte_val(pte) |= _PAGE_DIRTY; return pte; } static inline pte_t pte_mkyoung(pte_t pte) { pte_val(pte) |= _PAGE_ACCESSED; return pte; } -static inline pte_t pte_mkwrite(pte_t pte) { pte_val(pte) |= _PAGE_WRITE; return pte; } +static inline pte_t pte_mkwrite_novma(pte_t pte) { pte_val(pte) |= _PAGE_WRITE; return pte; } static inline pte_t pte_mkspecial(pte_t pte) { pte_val(pte) |= _PAGE_SPECIAL; return pte; } /* @@ -347,10 +338,6 @@ static inline pte_t pte_mkspecial(pte_t pte) { pte_val(pte) |= _PAGE_SPECIAL; re #endif -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ #define __mk_pte(addr,pgprot) \ ({ \ pte_t __pte; \ @@ -360,8 +347,6 @@ static inline pte_t pte_mkspecial(pte_t pte) { pte_val(pte) |= _PAGE_SPECIAL; re __pte; \ }) -#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) - static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot) { pte_t pte; @@ -391,11 +376,30 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) extern void paging_init (void); +static inline void set_ptes(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) +{ + if (pte_present(pte) && pte_user(pte)) + __update_cache(pte); + for (;;) { + *ptep = pte; + purge_tlb_entries(mm, addr); + if (--nr == 0) + break; + ptep++; + pte_val(pte) += 1 << PFN_PTE_SHIFT; + addr += PAGE_SIZE; + } +} +#define set_ptes set_ptes +#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1) + /* Used for deferring calls to flush_dcache_page() */ #define PG_dcache_dirty PG_arch_1 -#define update_mmu_cache(vms,addr,ptep) __update_cache(*ptep) +#define update_mmu_cache_range(vmf, vma, addr, ptep, nr) __update_cache(*ptep) +#define update_mmu_cache(vma, addr, ptep) __update_cache(*ptep) /* * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that @@ -422,7 +426,7 @@ extern void paging_init (void); #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -static inline int pte_swp_exclusive(pte_t pte) +static inline bool pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; } @@ -439,14 +443,17 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) return pte; } +static inline pte_t ptep_get(pte_t *ptep) +{ + return READ_ONCE(*ptep); +} +#define ptep_get ptep_get + static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { pte_t pte; - if (!pte_young(*ptep)) - return 0; - - pte = *ptep; + pte = ptep_get(ptep); if (!pte_young(pte)) { return 0; } @@ -454,17 +461,10 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned return 1; } -struct mm_struct; -static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - pte_t old_pte; - - old_pte = *ptep; - set_pte_at(mm, addr, ptep, __pte(0)); - - return old_pte; -} +int ptep_clear_flush_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep); +pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep); +struct mm_struct; static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { set_pte_at(mm, addr, ptep, pte_wrprotect(*ptep)); @@ -472,7 +472,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, #define pte_same(A,B) (pte_val(A) == pte_val(B)) -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ /* TLB page size encoding - see table 3-1 in parisc20.pdf */ @@ -502,7 +502,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR +#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH +#define __HAVE_ARCH_PTEP_CLEAR_FLUSH #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME |