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authorJesse Barnes <jbarnes@virtuousgeek.org>2008-11-05 10:31:53 -0800
committerDave Airlie <airlied@linux.ie>2008-12-29 17:47:22 +1000
commita2c0a97b784f837300f7b0869c82ab712c600952 (patch)
treeaca1cdf3d32e1cfa7387350483f6a70c74a24ffd /drivers/gpu/drm/drm_bufs.c
parenta9587470f753d670d910293ecbf1c7b66c99de50 (diff)
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>
Diffstat (limited to 'drivers/gpu/drm/drm_bufs.c')
-rw-r--r--drivers/gpu/drm/drm_bufs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index dc3ce3e0a0a4..7fb690bcd492 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -262,6 +262,9 @@ static int drm_addmap_core(struct drm_device * dev, unsigned int offset,
DRM_DEBUG("AGP offset = 0x%08lx, size = 0x%08lx\n", map->offset, map->size);
break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
}
case _DRM_SCATTER_GATHER:
if (!dev->sg) {
@@ -429,6 +432,9 @@ int drm_rmmap_locked(struct drm_device *dev, drm_local_map_t *map)
dmah.size = map->size;
__drm_pci_free(dev, &dmah);
break;
+ case _DRM_GEM:
+ DRM_ERROR("tried to rmmap GEM object\n");
+ break;
}
drm_free(map, sizeof(*map), DRM_MEM_MAPS);