diff options
| -rw-r--r-- | arch/parisc/include/asm/cacheflush.h | 12 | ||||
| -rw-r--r-- | arch/parisc/include/asm/page.h | 5 | ||||
| -rw-r--r-- | arch/parisc/kernel/cache.c | 35 |
3 files changed, 6 insertions, 46 deletions
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h index f0e2784e7cca..2f9b751878ba 100644 --- a/arch/parisc/include/asm/cacheflush.h +++ b/arch/parisc/include/asm/cacheflush.h | |||
| @@ -125,42 +125,38 @@ flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vma | |||
| 125 | void mark_rodata_ro(void); | 125 | void mark_rodata_ro(void); |
| 126 | #endif | 126 | #endif |
| 127 | 127 | ||
| 128 | #ifdef CONFIG_PA8X00 | ||
| 129 | /* Only pa8800, pa8900 needs this */ | ||
| 130 | |||
| 131 | #include <asm/kmap_types.h> | 128 | #include <asm/kmap_types.h> |
| 132 | 129 | ||
| 133 | #define ARCH_HAS_KMAP | 130 | #define ARCH_HAS_KMAP |
| 134 | 131 | ||
| 135 | void kunmap_parisc(void *addr); | ||
| 136 | |||
| 137 | static inline void *kmap(struct page *page) | 132 | static inline void *kmap(struct page *page) |
| 138 | { | 133 | { |
| 139 | might_sleep(); | 134 | might_sleep(); |
| 135 | flush_dcache_page(page); | ||
| 140 | return page_address(page); | 136 | return page_address(page); |
| 141 | } | 137 | } |
| 142 | 138 | ||
| 143 | static inline void kunmap(struct page *page) | 139 | static inline void kunmap(struct page *page) |
| 144 | { | 140 | { |
| 145 | kunmap_parisc(page_address(page)); | 141 | flush_kernel_dcache_page_addr(page_address(page)); |
| 146 | } | 142 | } |
| 147 | 143 | ||
| 148 | static inline void *kmap_atomic(struct page *page) | 144 | static inline void *kmap_atomic(struct page *page) |
| 149 | { | 145 | { |
| 150 | pagefault_disable(); | 146 | pagefault_disable(); |
| 147 | flush_dcache_page(page); | ||
| 151 | return page_address(page); | 148 | return page_address(page); |
| 152 | } | 149 | } |
| 153 | 150 | ||
| 154 | static inline void __kunmap_atomic(void *addr) | 151 | static inline void __kunmap_atomic(void *addr) |
| 155 | { | 152 | { |
| 156 | kunmap_parisc(addr); | 153 | flush_kernel_dcache_page_addr(addr); |
| 157 | pagefault_enable(); | 154 | pagefault_enable(); |
| 158 | } | 155 | } |
| 159 | 156 | ||
| 160 | #define kmap_atomic_prot(page, prot) kmap_atomic(page) | 157 | #define kmap_atomic_prot(page, prot) kmap_atomic(page) |
| 161 | #define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn)) | 158 | #define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn)) |
| 162 | #define kmap_atomic_to_page(ptr) virt_to_page(ptr) | 159 | #define kmap_atomic_to_page(ptr) virt_to_page(ptr) |
| 163 | #endif | ||
| 164 | 160 | ||
| 165 | #endif /* _PARISC_CACHEFLUSH_H */ | 161 | #endif /* _PARISC_CACHEFLUSH_H */ |
| 166 | 162 | ||
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h index b7adb2ac049c..c53fc63149e8 100644 --- a/arch/parisc/include/asm/page.h +++ b/arch/parisc/include/asm/page.h | |||
| @@ -28,9 +28,8 @@ struct page; | |||
| 28 | 28 | ||
| 29 | void clear_page_asm(void *page); | 29 | void clear_page_asm(void *page); |
| 30 | void copy_page_asm(void *to, void *from); | 30 | void copy_page_asm(void *to, void *from); |
| 31 | void clear_user_page(void *vto, unsigned long vaddr, struct page *pg); | 31 | #define clear_user_page(vto, vaddr, page) clear_page_asm(vto) |
| 32 | void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, | 32 | #define copy_user_page(vto, vfrom, vaddr, page) copy_page_asm(vto, vfrom) |
| 33 | struct page *pg); | ||
| 34 | 33 | ||
| 35 | /* #define CONFIG_PARISC_TMPALIAS */ | 34 | /* #define CONFIG_PARISC_TMPALIAS */ |
| 36 | 35 | ||
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index c035673209f7..a72545554a31 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c | |||
| @@ -388,41 +388,6 @@ void flush_kernel_dcache_page_addr(void *addr) | |||
| 388 | } | 388 | } |
| 389 | EXPORT_SYMBOL(flush_kernel_dcache_page_addr); | 389 | EXPORT_SYMBOL(flush_kernel_dcache_page_addr); |
| 390 | 390 | ||
| 391 | void clear_user_page(void *vto, unsigned long vaddr, struct page *page) | ||
| 392 | { | ||
| 393 | clear_page_asm(vto); | ||
| 394 | if (!parisc_requires_coherency()) | ||
| 395 | flush_kernel_dcache_page_asm(vto); | ||
| 396 | } | ||
| 397 | EXPORT_SYMBOL(clear_user_page); | ||
| 398 | |||
| 399 | void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, | ||
| 400 | struct page *pg) | ||
| 401 | { | ||
| 402 | /* Copy using kernel mapping. No coherency is needed | ||
| 403 | (all in kmap/kunmap) on machines that don't support | ||
| 404 | non-equivalent aliasing. However, the `from' page | ||
| 405 | needs to be flushed before it can be accessed through | ||
| 406 | the kernel mapping. */ | ||
| 407 | preempt_disable(); | ||
| 408 | flush_dcache_page_asm(__pa(vfrom), vaddr); | ||
| 409 | preempt_enable(); | ||
| 410 | copy_page_asm(vto, vfrom); | ||
| 411 | if (!parisc_requires_coherency()) | ||
| 412 | flush_kernel_dcache_page_asm(vto); | ||
| 413 | } | ||
| 414 | EXPORT_SYMBOL(copy_user_page); | ||
| 415 | |||
| 416 | #ifdef CONFIG_PA8X00 | ||
| 417 | |||
| 418 | void kunmap_parisc(void *addr) | ||
| 419 | { | ||
| 420 | if (parisc_requires_coherency()) | ||
| 421 | flush_kernel_dcache_page_addr(addr); | ||
| 422 | } | ||
| 423 | EXPORT_SYMBOL(kunmap_parisc); | ||
| 424 | #endif | ||
| 425 | |||
| 426 | void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) | 391 | void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) |
| 427 | { | 392 | { |
| 428 | unsigned long flags; | 393 | unsigned long flags; |
