Op 31-10-15 om 02:03 schreef Alex Goins:
> For all buffers backed by dmabuf, wait for its reservation object's fences
> before committing.
>
> Signed-off-by: Alex Goins <agoins@xxxxxxxxxx>
> ---
> 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);
>
Could you put the wait inside prepare_plane_fb?
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