[PATCH AUTOSEL 4.19 17/23] drm/msm/dpu: Ratelimit framedone timeout msgs

From: Sasha Levin
Date: Mon Jan 22 2024 - 11:56:48 EST


From: Rob Clark <robdclark@xxxxxxxxxxxx>

[ Upstream commit 2b72e50c62de60ad2d6bcd86aa38d4ccbdd633f2 ]

When we start getting these, we get a *lot*. So ratelimit it to not
flood dmesg.

Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/571584/
Link: https://lore.kernel.org/r/20231211182000.218088-1-robdclark@xxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 5 ++++-
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 19e2753ffe07..a411cfe76998 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -53,6 +53,9 @@
(p) ? ((p)->hw_pp ? (p)->hw_pp->idx - PINGPONG_0 : -1) : -1, \
##__VA_ARGS__)

+#define DPU_ERROR_ENC_RATELIMITED(e, fmt, ...) DPU_ERROR_RATELIMITED("enc%d " fmt,\
+ (e) ? (e)->base.base.id : -1, ##__VA_ARGS__)
+
/*
* Two to anticipate panels that can do cmd/vid dynamic switching
* plan is to create all possible physical encoder types, and switch between
@@ -2326,7 +2329,7 @@ static void dpu_encoder_frame_done_timeout(struct timer_list *t)
return;
}

- DPU_ERROR_ENC(dpu_enc, "frame done timeout\n");
+ DPU_ERROR_ENC_RATELIMITED(dpu_enc, "frame done timeout\n");

event = DPU_ENCODER_FRAME_EVENT_ERROR;
trace_dpu_enc_frame_done_timeout(DRMID(drm_enc), event);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 66d466628e2b..56ae888e18fc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -61,6 +61,7 @@
} while (0)

#define DPU_ERROR(fmt, ...) pr_err("[dpu error]" fmt, ##__VA_ARGS__)
+#define DPU_ERROR_RATELIMITED(fmt, ...) pr_err_ratelimited("[dpu error]" fmt, ##__VA_ARGS__)

/**
* ktime_compare_safe - compare two ktime structures
--
2.43.0