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authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-08-08 15:41:20 +0200
committerDave Airlie <airlied@redhat.com>2013-08-19 10:04:34 +1000
commit8d38c4b4371b8f9d1d72737c880cdae14b024142 (patch)
tree7436009ff2e591c9ac8e74a18229f86a6ca67f41 /drivers/gpu/drm/drm_bufs.c
parente2e99a8206bcce6f2d3d72ff8be42859f98dbcda (diff)
downloadlinux-8d38c4b4371b8f9d1d72737c880cdae14b024142.tar.bz2
drm: disallow legacy dma ioctls for modesetting drivers
Now only legacy ums drivers have the DRIVER_HAVE_DMA driver feature flag set, so strictly speaking the modesetting check is redundant. But adding it has the upside that it makes it very clear that the dma support is legacy stuff. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> 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.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
index bef4abff8fa3..cccc25f7ef86 100644
--- a/drivers/gpu/drm/drm_bufs.c
+++ b/drivers/gpu/drm/drm_bufs.c
@@ -1305,6 +1305,9 @@ int drm_addbufs(struct drm_device *dev, void *data,
struct drm_buf_desc *request = data;
int ret;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
return -EINVAL;
@@ -1348,6 +1351,9 @@ int drm_infobufs(struct drm_device *dev, void *data,
int i;
int count;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
return -EINVAL;
@@ -1427,6 +1433,9 @@ int drm_markbufs(struct drm_device *dev, void *data,
int order;
struct drm_buf_entry *entry;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
return -EINVAL;
@@ -1472,6 +1481,9 @@ int drm_freebufs(struct drm_device *dev, void *data,
int idx;
struct drm_buf *buf;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
return -EINVAL;
@@ -1524,6 +1536,9 @@ int drm_mapbufs(struct drm_device *dev, void *data,
struct drm_buf_map *request = data;
int i;
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
return -EINVAL;