From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Rob Clark <robdclark@gmail.com>,
Abhinav Kumar <quic_abhinavk@quicinc.com>,
Sean Paul <sean@poorly.run>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>,
Daniel Vetter <daniel@ffwll.ch>
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Subject: [PATCH] drm/msm/dpu: make "vblank timeout" more useful
Date: Sat, 06 Jan 2024 01:50:11 +0200 [thread overview]
Message-ID: <20240106-fd-dpu-debug-timeout-v1-1-6d9762884641@linaro.org> (raw)
We have several reports of vblank timeout messages. However after some
debugging it was found that there might be different causes to that.
Include the actual CTL_FLUSH value into the timeout message. This allows
us to identify the DPU block that gets stuck.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index d0f56c5c4cce..fb34067ab6af 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -489,7 +489,7 @@ static int dpu_encoder_phys_vid_wait_for_commit_done(
(hw_ctl->ops.get_flush_register(hw_ctl) == 0),
msecs_to_jiffies(50));
if (ret <= 0) {
- DPU_ERROR("vblank timeout\n");
+ DPU_ERROR("vblank timeout: %x\n", hw_ctl->ops.get_flush_register(hw_ctl));
return -ETIMEDOUT;
}
---
base-commit: 39676dfe52331dba909c617f213fdb21015c8d10
change-id: 20240106-fd-dpu-debug-timeout-e917f0bc8063
Best regards,
--
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
next reply other threads:[~2024-01-05 23:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-05 23:50 Dmitry Baryshkov [this message]
2024-01-25 17:14 ` Abhinav Kumar
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