On Thu, 21 May 2015, Mario Kleiner mario.kleiner.de@gmail.com wrote:
On 05/20/2015 10:36 AM, Daniel Vetter wrote:
In
commit f02ad907cd9e7fe3a6405d2d005840912f1ed258 Author: Daniel Vetter daniel.vetter@ffwll.ch Date: Thu Jan 22 16:36:23 2015 +0100
drm/atomic-helpers: Recover full cursor plane behaviourwe've added a hack to atomic helpers to never to vblank waits for cursor updates through the legacy apis since that's what X expects. Unfortunately we've (again) forgotten to adjust the transitional helpers. Do this now.
This fixes regressions for drivers only partially converted over to atomic (like i915).
Reported-by: Pekka Paalanen ppaalanen@gmail.com Cc: Pekka Paalanen ppaalanen@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter daniel.vetter@intel.com
drivers/gpu/drm/drm_plane_helper.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c index 40c1db9ad7c3..2f0ed11024eb 100644 --- a/drivers/gpu/drm/drm_plane_helper.c +++ b/drivers/gpu/drm/drm_plane_helper.c @@ -465,6 +465,9 @@ int drm_plane_helper_commit(struct drm_plane *plane, if (!crtc[i]) continue;
if (crtc[i]->cursor == plane)continue;- /* There's no other way to figure out whether the crtc is running. */ ret = drm_crtc_vblank_get(crtc[i]); if (ret == 0) {
This one is
Reviewed-and-tested-by: Mario Kleiner mario.kleiner.de@gmail.com
I was looking into Weston performance and the cursor problem, so had necessary tracing in place to test this. I can confirm that cursor related blocking in Westons drm-backend execution are gone with this patch applied, whereas they are still present when using hardware overlays on Intel, as expected.
So hardware cursors should be fine again, once the patch also ends in stable kernels.
Pushed to our topic/drm-fixes, thanks for the patch and review.
BR, Jani.
thanks, -mario _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/dri-devel