diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 18:15:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-12 18:15:51 -0700 |
| commit | cd166bd0dde265a97dd9aa8e3451a2646d96d04b (patch) | |
| tree | 3a7fb5b8bb8d7676e804845b75977be380b8dcff /include/asm-generic/cacheflush.h | |
| parent | 6b702462cbe5b6f372966a53f4465d745d86b65c (diff) | |
| parent | 5b02ee3d219f9e01b6e9146e25613822cfc2e5ce (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
add generic lib/checksum.c
asm-generic: add a generic uaccess.h
asm-generic: add generic NOMMU versions of some headers
asm-generic: add generic atomic.h and io.h
asm-generic: add legacy I/O header files
asm-generic: add generic versions of common headers
asm-generic: make bitops.h usable
asm-generic: make pci.h usable directly
asm-generic: make get_rtc_time overridable
asm-generic: rename page.h and uaccess.h
asm-generic: rename atomic.h to atomic-long.h
asm-generic: add a generic unistd.h
asm-generic: add generic ABI headers
asm-generic: add generic sysv ipc headers
asm-generic: introduce asm/bitsperlong.h
asm-generic: rename termios.h, signal.h and mman.h
Diffstat (limited to 'include/asm-generic/cacheflush.h')
| -rw-r--r-- | include/asm-generic/cacheflush.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h new file mode 100644 index 00000000000..ba4ec39a113 --- /dev/null +++ b/include/asm-generic/cacheflush.h @@ -0,0 +1,30 @@ +#ifndef __ASM_CACHEFLUSH_H +#define __ASM_CACHEFLUSH_H + +/* Keep includes the same across arches. */ +#include <linux/mm.h> + +/* + * The cache doesn't need to be flushed when TLB entries change when + * the cache is mapped to physical memory, not virtual memory + */ +#define flush_cache_all() do { } while (0) +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_dup_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) +#define flush_dcache_page(page) do { } while (0) +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) +#define flush_icache_range(start, end) do { } while (0) +#define flush_icache_page(vma,pg) do { } while (0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) +#define flush_cache_vmap(start, end) do { } while (0) +#define flush_cache_vunmap(start, end) do { } while (0) + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) + +#endif /* __ASM_CACHEFLUSH_H */ |