For all buffers backed by dmabuf, wait for its reservation object's fences before committing.
Signed-off-by: Alex Goins agoins@nvidia.com --- drivers/gpu/drm/i915/intel_display.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 1485640..3e6d588 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13097,6 +13097,8 @@ static int intel_atomic_commit(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; + struct drm_plane *plane; + struct drm_plane_state *plane_state; int ret = 0; int i; bool any_ms = false; @@ -13112,6 +13114,28 @@ static int intel_atomic_commit(struct drm_device *dev,
drm_atomic_helper_swap_state(dev, state);
+ /* For all framebuffers backed by dmabuf, wait for fence */ + for_each_plane_in_state(state, plane, plane_state, i) { + struct drm_framebuffer *fb; + struct drm_i915_gem_object *obj; + + fb = plane->state->fb; + if (!fb) + continue; + + obj = intel_fb_obj(fb); + if (!obj) + continue; + + mutex_lock(&obj->base.dev->object_name_lock); + if (obj->base.dma_buf) { + reservation_object_wait_timeout_rcu( + obj->base.dma_buf->resv, + true, false, msecs_to_jiffies(96)); + } + mutex_unlock(&obj->base.dev->object_name_lock); + } + for_each_crtc_in_state(state, crtc, crtc_state, i) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc);