diff options
author | Shaohua Li <shaohua.li@intel.com> | 2008-08-21 10:46:06 +0800 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-08-21 13:47:45 +0200 |
commit | d75586ad01e6c5a30e7337fb87d61e03556a1ecb (patch) | |
tree | 71fa07acb4b408e51a72b2c0630c2a620196caf4 /include | |
parent | cacf890694a36124ceddce44ff4c7b02d372ce7c (diff) |
x86, pageattr: introduce APIs to change pageattr of a page array
Add array interface APIs of pageattr. page based cache flush is quite
slow for a lot of pages. If pages are more than 1024 (4M), the patch
will use a wbinvd(). We have a simple test here (run a 3d game - open
arena), nearly all agp memory allocation are small (< 1M), so suppose
this will not impact runtime performance.
Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-x86/cacheflush.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h index f4c0ab50d2c..0a5f71817b3 100644 --- a/include/asm-x86/cacheflush.h +++ b/include/asm-x86/cacheflush.h @@ -66,6 +66,9 @@ int set_memory_rw(unsigned long addr, int numpages); int set_memory_np(unsigned long addr, int numpages); int set_memory_4k(unsigned long addr, int numpages); +int set_memory_array_uc(unsigned long *addr, int addrinarray); +int set_memory_array_wb(unsigned long *addr, int addrinarray); + /* * For legacy compatibility with the old APIs, a few functions * are provided that work on a "struct page". |