diff options
Diffstat (limited to 'include/asm-i386/pgtable-2level.h')
| -rw-r--r-- | include/asm-i386/pgtable-2level.h | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h index 38c3fcc0676d..a50fd1773de8 100644 --- a/include/asm-i386/pgtable-2level.h +++ b/include/asm-i386/pgtable-2level.h | |||
| @@ -11,10 +11,23 @@ | |||
| 11 | * within a page table are directly modified. Thus, the following | 11 | * within a page table are directly modified. Thus, the following |
| 12 | * hook is made available. | 12 | * hook is made available. |
| 13 | */ | 13 | */ |
| 14 | static inline void native_set_pte(pte_t *ptep , pte_t pte) | ||
| 15 | { | ||
| 16 | *ptep = pte; | ||
| 17 | } | ||
| 18 | static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr, | ||
| 19 | pte_t *ptep , pte_t pte) | ||
| 20 | { | ||
| 21 | native_set_pte(ptep, pte); | ||
| 22 | } | ||
| 23 | static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) | ||
| 24 | { | ||
| 25 | *pmdp = pmd; | ||
| 26 | } | ||
| 14 | #ifndef CONFIG_PARAVIRT | 27 | #ifndef CONFIG_PARAVIRT |
| 15 | #define set_pte(pteptr, pteval) (*(pteptr) = pteval) | 28 | #define set_pte(pteptr, pteval) native_set_pte(pteptr, pteval) |
| 16 | #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) | 29 | #define set_pte_at(mm,addr,ptep,pteval) native_set_pte_at(mm, addr, ptep, pteval) |
| 17 | #define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) | 30 | #define set_pmd(pmdptr, pmdval) native_set_pmd(pmdptr, pmdval) |
| 18 | #endif | 31 | #endif |
| 19 | 32 | ||
| 20 | #define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) | 33 | #define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) |
| @@ -23,11 +36,23 @@ | |||
| 23 | #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) | 36 | #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) |
| 24 | #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) | 37 | #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) |
| 25 | 38 | ||
| 26 | #define raw_ptep_get_and_clear(xp) __pte(xchg(&(xp)->pte_low, 0)) | 39 | static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp) |
| 40 | { | ||
| 41 | *xp = __pte(0); | ||
| 42 | } | ||
| 43 | |||
| 44 | #ifdef CONFIG_SMP | ||
| 45 | static inline pte_t native_ptep_get_and_clear(pte_t *xp) | ||
| 46 | { | ||
| 47 | return __pte(xchg(&xp->pte_low, 0)); | ||
| 48 | } | ||
| 49 | #else | ||
| 50 | #define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp) | ||
| 51 | #endif | ||
| 27 | 52 | ||
| 28 | #define pte_page(x) pfn_to_page(pte_pfn(x)) | 53 | #define pte_page(x) pfn_to_page(pte_pfn(x)) |
| 29 | #define pte_none(x) (!(x).pte_low) | 54 | #define pte_none(x) (!(x).pte_low) |
| 30 | #define pte_pfn(x) ((unsigned long)(((x).pte_low >> PAGE_SHIFT))) | 55 | #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) |
| 31 | #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) | 56 | #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) |
| 32 | #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) | 57 | #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) |
| 33 | 58 | ||
| @@ -66,6 +91,4 @@ static inline int pte_exec_kernel(pte_t pte) | |||
| 66 | #define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low }) | 91 | #define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low }) |
| 67 | #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) | 92 | #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) |
| 68 | 93 | ||
| 69 | void vmalloc_sync_all(void); | ||
| 70 | |||
| 71 | #endif /* _I386_PGTABLE_2LEVEL_H */ | 94 | #endif /* _I386_PGTABLE_2LEVEL_H */ |
