Trigger a devcoredump to dump dpu registers and capture the drm atomic state when the frame_done_timer timeouts. Signed-off-by: Paloma Arellano <quic_parellan@xxxxxxxxxxx> --- Changes since v1: - Optimized the format in which frame_done_timeout_cnt is incremented --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 1cf7ff6caff4e..ae3309ebb8f8a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -191,6 +191,7 @@ struct dpu_encoder_virt { void *crtc_frame_event_cb_data; atomic_t frame_done_timeout_ms; + atomic_t frame_done_timeout_cnt; struct timer_list frame_done_timer; struct msm_display_info disp_info; @@ -1204,6 +1205,8 @@ static void dpu_encoder_virt_atomic_enable(struct drm_encoder *drm_enc, dpu_enc->dsc = dpu_encoder_get_dsc_config(drm_enc); + atomic_set(&dpu_enc->frame_done_timeout_cnt, 0); + if (disp_info->intf_type == INTF_DP) dpu_enc->wide_bus_en = msm_dp_wide_bus_available(priv->dp[index]); else if (disp_info->intf_type == INTF_DSI) @@ -2115,11 +2118,12 @@ static int _dpu_encoder_status_show(struct seq_file *s, void *data) for (i = 0; i < dpu_enc->num_phys_encs; i++) { struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i]; - seq_printf(s, "intf:%d wb:%d vsync:%8d underrun:%8d ", + seq_printf(s, "intf:%d wb:%d vsync:%8d underrun:%8d frame_done_cnt:%d", phys->hw_intf ? phys->hw_intf->idx - INTF_0 : -1, phys->hw_wb ? phys->hw_wb->idx - WB_0 : -1, atomic_read(&phys->vsync_cnt), - atomic_read(&phys->underrun_cnt)); + atomic_read(&phys->underrun_cnt), + atomic_read(&dpu_enc->frame_done_timeout_cnt)); seq_printf(s, "mode: %s\n", dpu_encoder_helper_get_intf_type(phys->intf_mode)); } @@ -2341,6 +2345,9 @@ static void dpu_encoder_frame_done_timeout(struct timer_list *t) DPU_ERROR_ENC(dpu_enc, "frame done timeout\n"); + if (atomic_inc_return(&dpu_enc->frame_done_timeout_cnt) == 1) + msm_disp_snapshot_state(drm_enc->dev); + event = DPU_ENCODER_FRAME_EVENT_ERROR; trace_dpu_enc_frame_done_timeout(DRMID(drm_enc), event); dpu_enc->crtc_frame_event_cb(dpu_enc->crtc_frame_event_cb_data, event); @@ -2392,6 +2399,7 @@ struct drm_encoder *dpu_encoder_init(struct drm_device *dev, goto fail; atomic_set(&dpu_enc->frame_done_timeout_ms, 0); + atomic_set(&dpu_enc->frame_done_timeout_cnt, 0); timer_setup(&dpu_enc->frame_done_timer, dpu_encoder_frame_done_timeout, 0); -- 2.39.2