diff options
Diffstat (limited to 'arch/sh/include/asm/pgtable.h')
-rw-r--r-- | arch/sh/include/asm/pgtable.h | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/arch/sh/include/asm/pgtable.h b/arch/sh/include/asm/pgtable.h index 2a011b18090b..4f3efa7d5a64 100644 --- a/arch/sh/include/asm/pgtable.h +++ b/arch/sh/include/asm/pgtable.h | |||
@@ -36,6 +36,12 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; | |||
36 | #define NEFF_SIGN (1LL << (NEFF - 1)) | 36 | #define NEFF_SIGN (1LL << (NEFF - 1)) |
37 | #define NEFF_MASK (-1LL << NEFF) | 37 | #define NEFF_MASK (-1LL << NEFF) |
38 | 38 | ||
39 | static inline unsigned long long neff_sign_extend(unsigned long val) | ||
40 | { | ||
41 | unsigned long long extended = val; | ||
42 | return (extended & NEFF_SIGN) ? (extended | NEFF_MASK) : extended; | ||
43 | } | ||
44 | |||
39 | #ifdef CONFIG_29BIT | 45 | #ifdef CONFIG_29BIT |
40 | #define NPHYS 29 | 46 | #define NPHYS 29 |
41 | #else | 47 | #else |
@@ -133,27 +139,25 @@ typedef pte_t *pte_addr_t; | |||
133 | */ | 139 | */ |
134 | #define pgtable_cache_init() do { } while (0) | 140 | #define pgtable_cache_init() do { } while (0) |
135 | 141 | ||
136 | #if !defined(CONFIG_CACHE_OFF) && (defined(CONFIG_CPU_SH4) || \ | ||
137 | defined(CONFIG_SH7705_CACHE_32KB)) | ||
138 | struct mm_struct; | ||
139 | #define __HAVE_ARCH_PTEP_GET_AND_CLEAR | ||
140 | pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); | ||
141 | #endif | ||
142 | |||
143 | struct vm_area_struct; | 142 | struct vm_area_struct; |
144 | extern void update_mmu_cache(struct vm_area_struct * vma, | 143 | |
145 | unsigned long address, pte_t pte); | 144 | extern void __update_cache(struct vm_area_struct *vma, |
145 | unsigned long address, pte_t pte); | ||
146 | extern void __update_tlb(struct vm_area_struct *vma, | ||
147 | unsigned long address, pte_t pte); | ||
148 | |||
149 | static inline void | ||
150 | update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte) | ||
151 | { | ||
152 | __update_cache(vma, address, pte); | ||
153 | __update_tlb(vma, address, pte); | ||
154 | } | ||
155 | |||
146 | extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; | 156 | extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; |
147 | extern void paging_init(void); | 157 | extern void paging_init(void); |
148 | extern void page_table_range_init(unsigned long start, unsigned long end, | 158 | extern void page_table_range_init(unsigned long start, unsigned long end, |
149 | pgd_t *pgd); | 159 | pgd_t *pgd); |
150 | 160 | ||
151 | #if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_CPU_SH4) && defined(CONFIG_MMU) | ||
152 | extern void kmap_coherent_init(void); | ||
153 | #else | ||
154 | #define kmap_coherent_init() do { } while (0) | ||
155 | #endif | ||
156 | |||
157 | /* arch/sh/mm/mmap.c */ | 161 | /* arch/sh/mm/mmap.c */ |
158 | #define HAVE_ARCH_UNMAPPED_AREA | 162 | #define HAVE_ARCH_UNMAPPED_AREA |
159 | #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN | 163 | #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN |