diff options
Diffstat (limited to 'include/asm-frv/cacheflush.h')
| -rw-r--r-- | include/asm-frv/cacheflush.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/include/asm-frv/cacheflush.h b/include/asm-frv/cacheflush.h deleted file mode 100644 index 432a69e7f3d4..000000000000 --- a/include/asm-frv/cacheflush.h +++ /dev/null | |||
| @@ -1,104 +0,0 @@ | |||
| 1 | /* cacheflush.h: FRV cache flushing routines | ||
| 2 | * | ||
| 3 | * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. | ||
| 4 | * Written by David Howells (dhowells@redhat.com) | ||
| 5 | * | ||
| 6 | * This program is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU General Public License | ||
| 8 | * as published by the Free Software Foundation; either version | ||
| 9 | * 2 of the License, or (at your option) any later version. | ||
| 10 | */ | ||
| 11 | |||
| 12 | #ifndef _ASM_CACHEFLUSH_H | ||
| 13 | #define _ASM_CACHEFLUSH_H | ||
| 14 | |||
| 15 | /* Keep includes the same across arches. */ | ||
| 16 | #include <linux/mm.h> | ||
| 17 | |||
| 18 | /* | ||
| 19 | * virtually-indexed cache management (our cache is physically indexed) | ||
| 20 | */ | ||
| 21 | #define flush_cache_all() do {} while(0) | ||
| 22 | #define flush_cache_mm(mm) do {} while(0) | ||
| 23 | #define flush_cache_dup_mm(mm) do {} while(0) | ||
| 24 | #define flush_cache_range(mm, start, end) do {} while(0) | ||
| 25 | #define flush_cache_page(vma, vmaddr, pfn) do {} while(0) | ||
| 26 | #define flush_cache_vmap(start, end) do {} while(0) | ||
| 27 | #define flush_cache_vunmap(start, end) do {} while(0) | ||
| 28 | #define flush_dcache_mmap_lock(mapping) do {} while(0) | ||
| 29 | #define flush_dcache_mmap_unlock(mapping) do {} while(0) | ||
| 30 | |||
| 31 | /* | ||
| 32 | * physically-indexed cache management | ||
| 33 | * - see arch/frv/lib/cache.S | ||
| 34 | */ | ||
| 35 | extern void frv_dcache_writeback(unsigned long start, unsigned long size); | ||
| 36 | extern void frv_cache_invalidate(unsigned long start, unsigned long size); | ||
| 37 | extern void frv_icache_invalidate(unsigned long start, unsigned long size); | ||
| 38 | extern void frv_cache_wback_inv(unsigned long start, unsigned long size); | ||
| 39 | |||
| 40 | static inline void __flush_cache_all(void) | ||
| 41 | { | ||
| 42 | asm volatile(" dcef @(gr0,gr0),#1 \n" | ||
| 43 | " icei @(gr0,gr0),#1 \n" | ||
| 44 | " membar \n" | ||
| 45 | : : : "memory" | ||
| 46 | ); | ||
| 47 | } | ||
| 48 | |||
| 49 | /* dcache/icache coherency... */ | ||
| 50 | #ifdef CONFIG_MMU | ||
| 51 | extern void flush_dcache_page(struct page *page); | ||
| 52 | #else | ||
| 53 | static inline void flush_dcache_page(struct page *page) | ||
| 54 | { | ||
| 55 | unsigned long addr = page_to_phys(page); | ||
| 56 | frv_dcache_writeback(addr, addr + PAGE_SIZE); | ||
| 57 | } | ||
| 58 | #endif | ||
| 59 | |||
| 60 | static inline void flush_page_to_ram(struct page *page) | ||
| 61 | { | ||
| 62 | flush_dcache_page(page); | ||
| 63 | } | ||
| 64 | |||
| 65 | static inline void flush_icache(void) | ||
| 66 | { | ||
| 67 | __flush_cache_all(); | ||
| 68 | } | ||
| 69 | |||
| 70 | static inline void flush_icache_range(unsigned long start, unsigned long end) | ||
| 71 | { | ||
| 72 | frv_cache_wback_inv(start, end); | ||
| 73 | } | ||
| 74 | |||
| 75 | #ifdef CONFIG_MMU | ||
| 76 | extern void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, | ||
| 77 | unsigned long start, unsigned long len); | ||
| 78 | #else | ||
| 79 | static inline void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, | ||
| 80 | unsigned long start, unsigned long len) | ||
| 81 | { | ||
| 82 | frv_cache_wback_inv(start, start + len); | ||
| 83 | } | ||
| 84 | #endif | ||
| 85 | |||
| 86 | static inline void flush_icache_page(struct vm_area_struct *vma, struct page *page) | ||
| 87 | { | ||
| 88 | flush_icache_user_range(vma, page, page_to_phys(page), PAGE_SIZE); | ||
| 89 | } | ||
| 90 | |||
| 91 | /* | ||
| 92 | * permit ptrace to access another process's address space through the icache | ||
| 93 | * and the dcache | ||
| 94 | */ | ||
| 95 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | ||
| 96 | do { \ | ||
| 97 | memcpy((dst), (src), (len)); \ | ||
| 98 | flush_icache_user_range((vma), (page), (vaddr), (len)); \ | ||
| 99 | } while(0) | ||
| 100 | |||
| 101 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | ||
| 102 | memcpy((dst), (src), (len)) | ||
| 103 | |||
| 104 | #endif /* _ASM_CACHEFLUSH_H */ | ||
