tmp_suning_uos_patched/drivers/gpu
Thomas Hellstrom 542c6f6df5 drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes.
For x86 this affected highmem pages only, since they were always kmapped
cache-coherent, and this is fixed using kmap_atomic_prot().

For other architectures that may not modify the linear kernel map we
resort to vmap() for now, since kmap_atomic_prot() generally uses the
linear kernel map for lowmem pages. This of course comes with a
performance impact and should be optimized when possible.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-07-29 15:56:13 +10:00
..
drm drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes. 2009-07-29 15:56:13 +10:00
Makefile drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00