From: Iskren Chernev iskren.chernev@gmail.com
[ Upstream commit 68e4f01fddb4ead80e8c7084db489307f22c9cbb ]
Before the offending commit in msm_atomic_commit_tail wait_flush was called once per frame, after the commit was submitted. After it wait_flush is also called at the beginning to ensure previous potentially async commits are done.
For cmd panels the source of wait_flush is a ping-pong irq notifying a completion. The completion needs to be notified with complete_all so multiple waiting parties (new async committers) can proceed.
Signed-off-by: Iskren Chernev iskren.chernev@gmail.com Suggested-by: Rob Clark robdclark@gmail.com Fixes: 2d99ced787e3d ("drm/msm: async commit support") Signed-off-by: Rob Clark robdclark@chromium.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index 03c6d6157e4d0..395146884a222 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -1099,7 +1099,7 @@ static void mdp5_crtc_pp_done_irq(struct mdp_irq *irq, uint32_t irqstatus) struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, pp_done);
- complete(&mdp5_crtc->pp_completion); + complete_all(&mdp5_crtc->pp_completion); }
static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc)