From patchwork Thu Nov 30 22:47:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paloma Arellano X-Patchwork-Id: 749081 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="eeKd4MA2" Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F20CE10FC for ; Thu, 30 Nov 2023 14:48:11 -0800 (PST) Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AULknpO032003; Thu, 30 Nov 2023 22:47:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=A3SdIOwkp+raoZKeD++WfooMkWxcrdLVxMc2AMfPLs8=; b=eeKd4MA2C7XXmEXgfs7uuACbtCLlKqAM730dQlvyyuyMv7pjmNyTbB7sEtwBzGCJAMNj NwFtJaHJWtZPYQDvGteiZdE4LP0C78ea1F724mu5SFfTS7fOogtoZy8bX3Bjl8jODfHg b6OicAMngNnuOsXojbJ7orJDP1Qinvo+cRqXqfcvpbqSUA5zUiUdzuor7nx21F20CzuL lcg4gzZCEX7W2bQhvwWbAqEIk4JKVUb+o/hJ1w8SBJKiJquYURCwIFsNNojhYjX+9NbE j9BYdgChIW5Ovn2vF+yztSmsBTJopdFIA8SXrYmp/YO4nM4CqleJa85EaFqceR1XCyDU 1w== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3uq2kp83xg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Nov 2023 22:47:55 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3AUMlt1X006166 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Nov 2023 22:47:55 GMT Received: from hu-parellan-lv.qualcomm.com (10.49.16.6) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Thu, 30 Nov 2023 14:47:54 -0800 From: Paloma Arellano To: CC: Paloma Arellano , , , , , , , , , , , kernel test robot Subject: [PATCH v3] drm/msm/dpu: Capture dpu snapshot when frame_done_timer timeouts Date: Thu, 30 Nov 2023 14:47:37 -0800 Message-ID: <20231130224740.24383-1-quic_parellan@quicinc.com> X-Mailer: git-send-email 2.41.0 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: ly9GfYG9tBvzHilOahlA_xu6i1AQamog X-Proofpoint-GUID: ly9GfYG9tBvzHilOahlA_xu6i1AQamog X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-30_22,2023-11-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 mlxscore=0 malwarescore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1011 spamscore=0 mlxlogscore=999 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311300168 Trigger a devcoredump to dump dpu registers and capture the drm atomic state when the frame_done_timer timeouts. v2: Optimize the format in which frame_done_timeout_cnt is incremented v3: Describe parameter frame_done_timeout_cnt in dpu_encoder_virt Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202312010225.2OJWLKmA-lkp@intel.com/ Reviewed-by: Dmitry Baryshkov Signed-off-by: Paloma Arellano --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 14 ++++++++++++-- 1 file changed, 12 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..1c3560e1c6252 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -151,6 +151,8 @@ enum dpu_enc_rc_states { * @crtc_frame_event_cb: callback handler for frame event * @crtc_frame_event_cb_data: callback handler private data * @frame_done_timeout_ms: frame done timeout in ms + * @frame_done_timeout_cnt: atomic counter tracking the number of frame + * done timeouts * @frame_done_timer: watchdog timer for frame done event * @disp_info: local copy of msm_display_info struct * @idle_pc_supported: indicate if idle power collaps is supported @@ -191,6 +193,7 @@ 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 +1207,8 @@ 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 +2120,12 @@ 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 +2347,9 @@ 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 +2401,7 @@ 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);