drm/msm: submit support for in-fences
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 0b96d85..3a4a8dd 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -15,6 +15,8 @@
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <linux/sync_file.h>
+
#include "msm_drv.h"
#include "msm_gpu.h"
#include "msm_gem.h"
@@ -361,6 +363,7 @@
struct msm_file_private *ctx = file->driver_priv;
struct msm_gem_submit *submit;
struct msm_gpu *gpu = priv->gpu;
+ struct fence *in_fence = NULL;
unsigned i;
int ret;
@@ -394,9 +397,32 @@
if (ret)
goto out;
- ret = submit_fence_sync(submit);
- if (ret)
- goto out;
+ if (args->flags & MSM_SUBMIT_FENCE_FD_IN) {
+ in_fence = sync_file_get_fence(args->fence_fd);
+
+ if (!in_fence) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* TODO if we get an array-fence due to userspace merging multiple
+ * fences, we need a way to determine if all the backing fences
+ * are from our own context..
+ */
+
+ if (in_fence->context != gpu->fctx->context) {
+ ret = fence_wait(in_fence, true);
+ if (ret)
+ goto out;
+ }
+
+ }
+
+ if (!(args->fence & MSM_SUBMIT_NO_IMPLICIT)) {
+ ret = submit_fence_sync(submit);
+ if (ret)
+ goto out;
+ }
ret = submit_pin_objects(submit);
if (ret)
@@ -467,6 +493,8 @@
args->fence = submit->fence->seqno;
out:
+ if (in_fence)
+ fence_put(in_fence);
submit_cleanup(submit);
if (ret)
msm_gem_submit_free(submit);