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Mon, 12 Oct 2026 00:01:04 -0700 (PDT) X-Received: by 2002:a05:620a:8084:b0:93e:571e:94f0 with SMTP id af79cd13be357-93ebd1eabeamr1637426285a.3.1791788464004; Mon, 12 Oct 2026 00:01:04 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c31a9aa94d4sm424903966b.62.2026.10.12.00.01.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 12 Oct 2026 00:01:02 -0700 (PDT) Message-ID: <6e67b0b2-8bae-4568-a276-56f9db360b80@oss.qualcomm.com> Date: Mon, 12 Oct 2026 09:00:58 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 0/3] drm/msm: correct DSC RGB and command-mode vblank handling To: Zhang Jiaxi , Rob Clark , Dmitry Baryshkov Cc: Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , "linux-arm-msm@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "freedreno@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" References: Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=Woe+otfv c=1 sm=1 tr=0 ts=6acc85b1 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=cNoKYFeJyS4W4/1HdvzxLidmn8o=:19 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=Ot09LXujVt6j2_2-7twA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-GUID: bgeBhPjHIKbJ3UXgJ5aJo7dRCP6XkY0t X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEyMDAyNyBTYWx0ZWRfX88Cf+5308v4r cxREqzGg4cyt5t8kdI9Xdzryl2YljxrDpzVNcOeedRKXDpki+C8fEeCwKOyXHxZ3rR874MuC8R0 EtDyecsBHSoUr/7hUnREcfNNfUIHVtmlidYxcSfa9zvaAiFfuKHv+bMPJmFhi0U5g+KvAlKDwa9 Ee7imGlv4WrGYUfVpTRh/Mfs3lI96qfOaXKyJRDRBgGB3W8inWCD7zNO+MXLP03tI1FR6QNl0I4 SdJAPCid17y499aXd9SMLbInBRkdbgPOn4KXN9Qc4Dy7Jo/fAjVaNENYggVoNBsY2CKft+fSOiD kxh5/1k7dOdcWx63/cm1xgTE9e3MeBjXr44zz4Oh+LlQHHn5r73ubCdln7TjPUm5FEZT/cU3Teo NIjKMAkfVj1nh16iLykQB3ZQaJami5IPAUy6IRNpgRS4JcjSothifZ4rvRWab/rbWjBxS1aQSOa 9XrMP7KziOYocAtjvow== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEyMDAyNyBTYWx0ZWRfX8tOpuZcsTqOh BETLfjyBH5FQCc8s49jzNLhouKSb/gtb8avPouEZoqwuyy6/JR6X+TwDYO3va7JPCmoOWoSJGz7 17PnDdeqzZdROqt2u3pnNSMUzOjpnw0= X-Proofpoint-ORIG-GUID: bgeBhPjHIKbJ3UXgJ5aJo7dRCP6XkY0t X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-12_02,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 priorityscore=1501 phishscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610120027 On 10/9/26 12:34 AM, Zhang Jiaxi wrote: > These three independent corrections preserve current target APIs: > select the existing RGB DSC 1.2 RC table only for version 1.2 and reject > native subsampling in a forced-RGB path; retain the commit's vblank reference > until completion delivers its page-flip event; and reject video-porch > scanout-position conversion for a command-mode tear-check counter. > > Command mode initializes that counter at vdisplay, puts RD_PTR at > vdisplay+1 and can wrap at twice vtotal. This is not the video raster used > by the shared timestamp conversion. Returning false only marks that > accurate scanout-derived timestamp unavailable; TE IRQ/counting and the > current off-delay policy remain in place. No always-on IRQ policy is added. > The completion callback consumes the current count/time and does not wait > for another TE interrupt. [...] You sent a number of patches with broken threading, please switch to using the b4 tool - https://b4.docs.kernel.org/en/latest/ Konrad