drm: mark dma setup/teardown as legacy systems
And hide the checks a bit better. This was already disallowed for
modesetting drivers, so no functinal change here.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c
index 495b5fd..8a140a9 100644
--- a/drivers/gpu/drm/drm_dma.c
+++ b/drivers/gpu/drm/drm_dma.c
@@ -44,10 +44,18 @@
*
* Allocate and initialize a drm_device_dma structure.
*/
-int drm_dma_setup(struct drm_device *dev)
+int drm_legacy_dma_setup(struct drm_device *dev)
{
int i;
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
+ drm_core_check_feature(dev, DRIVER_MODESET)) {
+ return 0;
+ }
+
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL);
if (!dev->dma)
return -ENOMEM;
@@ -66,11 +74,16 @@
* Free all pages associated with DMA buffers, the buffers and pages lists, and
* finally the drm_device::dma structure itself.
*/
-void drm_dma_takedown(struct drm_device *dev)
+void drm_legacy_dma_takedown(struct drm_device *dev)
{
struct drm_device_dma *dma = dev->dma;
int i, j;
+ if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
+ drm_core_check_feature(dev, DRIVER_MODESET)) {
+ return;
+ }
+
if (!dma)
return;