From a1f2ba60eace242fd034173db3762f342a824a2e Mon Sep 17 00:00:00 2001 From: Krishna Manikandan Date: Thu, 27 May 2021 10:37:56 +0530 Subject: drm/msm/disp/dpu1: avoid perf update in frame done event Crtc perf update from frame event work can result in wrong bandwidth and clock update from dpu if the work is scheduled after the swap state has happened. Avoid such issues by moving perf update to complete commit once the frame is accepted by the hardware. Fixes: a29c8c024165 ("drm/msm/disp/dpu1: fix display underruns during modeset") Signed-off-by: Krishna Manikandan Tested-by: Douglas Anderson Link: https://lore.kernel.org/r/1622092076-5100-1-git-send-email-mkrishn@codeaurora.org Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/gpu/drm/msm') diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 3e54dafc2f8a..9a5c70c87cc8 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -406,9 +406,6 @@ static void dpu_crtc_frame_event_work(struct kthread_work *work) fevent->event); } - if (fevent->event & DPU_ENCODER_FRAME_EVENT_DONE) - dpu_core_perf_crtc_update(crtc, 0, false); - if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE | DPU_ENCODER_FRAME_EVENT_ERROR)) frame_done = true; @@ -476,6 +473,7 @@ static void dpu_crtc_frame_event_cb(void *data, u32 event) void dpu_crtc_complete_commit(struct drm_crtc *crtc) { trace_dpu_crtc_complete_commit(DRMID(crtc)); + dpu_core_perf_crtc_update(crtc, 0, false); _dpu_crtc_complete_flip(crtc); } -- cgit v1.2.3