drm: GEM mmap support

Add core support for mapping of GEM objects.  Drivers should provide a
vm_operations_struct if they want to support page faulting of objects.
The code for handling GEM object offsets was taken from TTM, which was
written by Thomas Hellström.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jesse Barnes
2008-11-05 10:31:53 -08:00
committed by Dave Airlie
parent a9587470f7
commit a2c0a97b78
8 changed files with 161 additions and 3 deletions

View File

@@ -173,6 +173,7 @@ enum drm_map_type {
_DRM_AGP = 3, /**< AGP/GART */
_DRM_SCATTER_GATHER = 4, /**< Scatter/gather memory for PCI DMA */
_DRM_CONSISTENT = 5, /**< Consistent memory for PCI DMA */
_DRM_GEM = 6, /**< GEM object */
};
/**