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: Steev Klimaszewski <steev@kali.org>,
linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH v4 1/3] drm/msm/dpu: make "vblank timeout" more useful
Date: Mon, 26 Feb 2024 04:27:59 +0200 [thread overview]
Message-ID: <20240226-fd-dpu-debug-timeout-v4-1-51eec83dde23@linaro.org> (raw)
In-Reply-To: <20240226-fd-dpu-debug-timeout-v4-0-51eec83dde23@linaro.org>
We have several reports of vblank timeout messages. However after some
debugging it was found that there might be different causes to that.
To allow us to identify the DPU block that gets stuck, include the
actual CTL_FLUSH value into the timeout message.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
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 2aa72b578764..6058706f03e4 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
@@ -480,7 +480,7 @@ 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;
}
--
2.39.2
next prev parent reply other threads:[~2024-02-26 2:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-26 2:27 [PATCH v4 0/3] drm/msm/dpu: debug commit_done timeouts Dmitry Baryshkov
2024-02-26 2:27 ` Dmitry Baryshkov [this message]
2024-02-26 2:28 ` [PATCH v4 2/3] drm/msm/dpu: split dpu_encoder_wait_for_event into two functions Dmitry Baryshkov
2024-02-26 2:28 ` [PATCH v4 3/3] drm/msm/dpu: capture snapshot on the first commit_done timeout Dmitry Baryshkov
2024-03-05 0:28 ` [PATCH v4 0/3] drm/msm/dpu: debug commit_done timeouts Dmitry Baryshkov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240226-fd-dpu-debug-timeout-v4-1-51eec83dde23@linaro.org \
--to=dmitry.baryshkov@linaro.org \
--cc=airlied@gmail.com \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marijn.suijten@somainline.org \
--cc=quic_abhinavk@quicinc.com \
--cc=robdclark@gmail.com \
--cc=sean@poorly.run \
--cc=steev@kali.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).