diff options
| author | Sean Paul <seanpaul@chromium.org> | 2019-01-28 15:42:51 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-04-18 10:04:10 -0700 |
| commit | be77ef760cd351b27916a3b4e74e7fefb4809c4a (patch) | |
| tree | 6d9b1ba180186f9f1711e776420db3eaf66c632d /drivers/gpu/drm/msm | |
| parent | 70df9610de0fd3bbcb746f501ab7426a3052250f (diff) | |
drm/msm: dpu: Don't queue the frame_done watchdog for cursor
In the case of an async/cursor update, we don't wait for the frame_done
event, which means handle_frame_done is never called, and the frame_done
watchdog isn't canceled. Currently, this results in a frame_done timeout
every time the cursor moves without a synchronous frame following it up
before the timeout expires. Since we don't wait for frame_done, and
don't handle it, we shouldn't modify the watchdog.
Reviewed-by: Fritz Koenig <frkoenig@google.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128204306.95076-4-sean@poorly.run
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index e8dfdb48016e..472cdb464458 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -1791,7 +1791,6 @@ void dpu_encoder_kickoff(struct drm_encoder *drm_enc, bool async) { struct dpu_encoder_virt *dpu_enc; struct dpu_encoder_phys *phys; - unsigned long timeout_ms; ktime_t wakeup_time; unsigned int i; @@ -1804,12 +1803,20 @@ void dpu_encoder_kickoff(struct drm_encoder *drm_enc, bool async) trace_dpu_enc_kickoff(DRMID(drm_enc)); - timeout_ms = DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES * 1000 / - drm_mode_vrefresh(&drm_enc->crtc->state->adjusted_mode); + /* + * Asynchronous frames don't handle FRAME_DONE events. As such, they + * shouldn't enable the frame_done watchdog since it will always time + * out. + */ + if (!async) { + unsigned long timeout_ms; + timeout_ms = DPU_ENCODER_FRAME_DONE_TIMEOUT_FRAMES * 1000 / + drm_mode_vrefresh(&drm_enc->crtc->state->adjusted_mode); - atomic_set(&dpu_enc->frame_done_timeout_ms, timeout_ms); - mod_timer(&dpu_enc->frame_done_timer, - jiffies + msecs_to_jiffies(timeout_ms)); + atomic_set(&dpu_enc->frame_done_timeout_ms, timeout_ms); + mod_timer(&dpu_enc->frame_done_timer, + jiffies + msecs_to_jiffies(timeout_ms)); + } /* All phys encs are ready to go, trigger the kickoff */ _dpu_encoder_kickoff_phys(dpu_enc, async); |