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Tue, 23 May 2023 18:56:59 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34NIuvpi032358 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 23 May 2023 18:56:57 GMT Received: from [10.134.70.142] (10.80.80.8) 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 15.2.986.42; Tue, 23 May 2023 11:56:56 -0700 Message-ID: Date: Tue, 23 May 2023 11:56:56 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [Freedreno] [PATCH] Revert "drm/msm/dp: Remove INIT_SETUP delay" Content-Language: en-US To: Leonard Lausen , Dmitry Baryshkov , Bjorn Andersson CC: , Sankeerth Billakanti , Bjorn Andersson , , David Airlie , "Nikita Travkin" , , , Kuogee Hsieh , Rob Clark , Daniel Vetter , , Stephen Boyd , "Sean Paul" , Johan Hovold References: <1345a125-f745-4fe3-0f5e-bfe84225958d@quicinc.com> <20230508021536.txtamifw2vkfncnx@ripper> <3802269cd54ce105ef6dece03b1b9af575b4fa06@lausen.nl> <49d175ec16e3f65a18265063e51092ee8d0d79c1@lausen.nl> From: Abhinav Kumar In-Reply-To: <49d175ec16e3f65a18265063e51092ee8d0d79c1@lausen.nl> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) 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-GUID: rLBmCTl-U4Z5s3a-8SPvcTnbMYDCy6us X-Proofpoint-ORIG-GUID: rLBmCTl-U4Z5s3a-8SPvcTnbMYDCy6us X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.176.26 definitions=2023-05-23_12,2023-05-23_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 mlxlogscore=999 spamscore=0 impostorscore=0 bulkscore=0 malwarescore=0 phishscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305230153 X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Leonard On 5/22/2023 7:39 PM, Leonard Lausen wrote: > Abhinav Kumar writes: >>>>> There is no need to add the 100ms delay back yet. >>>>> >>>>> thanks for posting this but NAK on this patch till we post the fix this >>>>> week. >>>>> >>>>> Appreciate a bit of patience till then. >>>> >>>> This regression is already part of the 6.3 stable release series. Will >>>> the new patch qualify for inclusion in 6.3.y? Or will it be part of 6.4 >>>> and this revert should go into 6.3.y? >>> >>> This is a tough situation, as landing a revert will break x13s, as noted >>> by Bjorn. Given that the workaround is known at this moment, I would >>> like to wait for the patch from Abhinav to appear, then we can decide >>> which of the fixes should go to the stable kernel. > > I wasn't able to find new patches, though may have missed them. Is there > a decision yet how to proceed with this regression? 6.2 now being EOL > may make this a good moment to decide on the next steps. > Yes, the new patch to fix this issue is here https://patchwork.freedesktop.org/patch/538601/?series=118148&rev=3 Apologies if you were not CCed on this, if a next version is CCed, will ask kuogee to cc you. Meanwhile, will be great if you can verify if it works for you and provide Tested-by tags. >>>> [  275.025497] [drm:dpu_encoder_phys_vid_wait_for_commit_done:488] >>>> [dpu error]vblank timeout >>>> [  275.025514] [drm:dpu_kms_wait_for_commit_done:510] [dpu error]wait >>>> for commit done returned -110 >>>> [  275.064141] [drm:dpu_encoder_frame_done_timeout:2382] [dpu >>>> error]enc33 frame done timeout >> >> This is a different crash but the root-cause of both the issues is the >> bridge hpd_enable/disable series. >> >> https://patchwork.freedesktop.org/patch/514414/ >> >> This is breaking the sequence and logic of internal hpd as per my >> discussion with kuogee. >> >> We are analyzing the issue and the fix internally first and once we >> figure out all the details will post it. > > Thank you!