tree 71fa07acb4b408e51a72b2c0630c2a620196caf4
parent cacf890694a36124ceddce44ff4c7b02d372ce7c
author Shaohua Li <shaohua.li@intel.com> 1219286766 +0800
committer Ingo Molnar <mingo@elte.hu> 1219319265 +0200

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>