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path: root/drivers/gpu/drm/msm/msm_gem_submit.c
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Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_submit.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gem_submit.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 4f02fa3c78f9..f6f595aae2c5 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -68,7 +68,14 @@ void __msm_gem_submit_destroy(struct kref *kref)
container_of(kref, struct msm_gem_submit, ref);
unsigned i;
+ if (submit->fence_id) {
+ mutex_lock(&submit->queue->lock);
+ idr_remove(&submit->queue->fence_idr, submit->fence_id);
+ mutex_unlock(&submit->queue->lock);
+ }
+
dma_fence_put(submit->fence);
+
put_pid(submit->pid);
msm_submitqueue_put(submit->queue);
@@ -872,6 +879,20 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
goto out;
}
+ /*
+ * Allocate an id which can be used by WAIT_FENCE ioctl to map back
+ * to the underlying fence.
+ */
+ mutex_lock(&queue->lock);
+ submit->fence_id = idr_alloc_cyclic(&queue->fence_idr,
+ submit->fence, 0, INT_MAX, GFP_KERNEL);
+ mutex_unlock(&queue->lock);
+ if (submit->fence_id < 0) {
+ ret = submit->fence_id = 0;
+ submit->fence_id = 0;
+ goto out;
+ }
+
if (args->flags & MSM_SUBMIT_FENCE_FD_OUT) {
struct sync_file *sync_file = sync_file_create(submit->fence);
if (!sync_file) {
@@ -886,7 +907,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
msm_gpu_submit(gpu, submit);
- args->fence = submit->fence->seqno;
+ args->fence = submit->fence_id;
msm_reset_syncobjs(syncobjs_to_reset, args->nr_in_syncobjs);
msm_process_post_deps(post_deps, args->nr_out_syncobjs,