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disp: msm: sde: log vblank timestamp in eventlogs

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Log the vblank timestamp during vblank callback. This will be
useful in calculating the precise difference between the vsync
while debugging. As part of the change, remove the vblank
counter logging in sde_crtc as it floods the logs with 4 entries
for each vblank request.

Change-Id: I6b532ad657581fb2a34318541acbd81a44858819
Signed-off-by: Veera Sundaram Sankaran <quic_veeras@quicinc.com>
This commit is contained in:
Veera Sundaram Sankaran
2022-05-23 11:03:45 -07:00
parent 7a013221ae
commit b40c05519d
2 changed files with 1 additions and 1 deletions
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1
msm/sde/sde_crtc.c
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@@ -6151,7 +6151,6 @@ static u32 sde_crtc_get_vblank_counter(struct drm_crtc *crtc)
is_built_in = sde_encoder_is_built_in_display(encoder); is_built_in = sde_encoder_is_built_in_display(encoder);
vblank_cnt = sde_encoder_get_frame_count(encoder); vblank_cnt = sde_encoder_get_frame_count(encoder);
SDE_EVT32(DRMID(crtc), DRMID(encoder), is_built_in, vblank_cnt);
SDE_DEBUG("crtc:%d enc:%d is_built_in:%d vblank_cnt:%d\n", SDE_DEBUG("crtc:%d enc:%d is_built_in:%d vblank_cnt:%d\n",
DRMID(crtc), DRMID(encoder), is_built_in, vblank_cnt); DRMID(crtc), DRMID(encoder), is_built_in, vblank_cnt);

1
msm/sde/sde_encoder.c
View File

@@ -3549,6 +3549,7 @@ static void sde_encoder_vblank_callback(struct drm_encoder *drm_enc,
if (phy_enc->sde_kms->debugfs_hw_fence) if (phy_enc->sde_kms->debugfs_hw_fence)
sde_encoder_hw_fence_status(phy_enc->sde_kms, sde_enc->crtc, phy_enc->hw_ctl); sde_encoder_hw_fence_status(phy_enc->sde_kms, sde_enc->crtc, phy_enc->hw_ctl);
SDE_EVT32(DRMID(drm_enc), ktime_to_us(ts), atomic_read(&phy_enc->vsync_cnt));
SDE_ATRACE_END("encoder_vblank_callback"); SDE_ATRACE_END("encoder_vblank_callback");
} }