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From: "Diederik de Haas" Cc: "Christian Hewitt" , "Detlev Casanova" , =?utf-8?q?Olivier_Cr=C3=AAte?= , "Ezequiel Garcia" , "Mauro Carvalho Chehab" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Heiko Stuebner" , "Diederik de Haas" , "Dmitry Osipenko" , "Thomas Gleixner" , "Dragan Simic" , "Chukun Pan" , , , , , To: "Nicolas Dufresne" References: <20251226113140.573759-1-christianshewitt@gmail.com> In-Reply-To: X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260314_071950_697641_98C588A0 X-CRM114-Status: GOOD ( 15.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Nicolas, On Sun Mar 8, 2026 at 10:40 PM CET, Nicolas Dufresne wrote: > Le vendredi 26 d=C3=A9cembre 2025 =C3=A0 11:31 +0000, Christian Hewitt a = =C3=A9crit=C2=A0: >> This series depends upon Detlev Casanova's current v7 series for VDPU381= and >> VDPU383 support [0]. It adds support for the VDPU346 IP block used for H= 264, >> HEVC and (in active work) VP9 on the RK356X boards. VDPU346 appears to b= e a >> close relation to VDPU381 used with RK3588, except with a single core, o= utput >> limited to 4K, and minor feature differences, e.g. HEVC level 5.1 on VDP= U346 >> vs 6.1 on VDPU381. To handle differences we declare a new compatible. >>=20 >> The device-tree changes are derived from prior-art in Detlev's patches f= or >> RK3576 and RK3588, the vendor kernel [1], and some earlier patch attempt= s >> from Piotr Oniszczuk and Diederik de Haas. >>=20 >> The register differences between VDPU346 and VDPU381 appear to be minima= l so >> we currently and intentionally reuse the VDPU381 h264, hevc, and regs fi= les >> to avoid duplicating code. There is some evidence of buffer size changes= in >> testing which still need to be explored. If further register analysis ne= eds >> separate files for VDPU346 the refactoring will be beyond my current n00= b >> coding skills and I will either need some coaching or would be happy to = pass >> the series over to a more experienced developer. > > A fluster score and explained error report is missing your this cover let= ter.=20 > This will probably highlight some of the instability issues reported in t= his > series. I'll mark the series are "Change Request", as you have few review > comments and now this test. > > Overall, I'd like to see probably investigations of the problem before go= ing > ahead. FTR: You replied to v2 while there is a v3 here: https://patch.msgid.link/20260110053727.2295260-1-christianshewitt@gmail.co= m/ It (still) doesn't have a fluster score, but it is the currently most recent version posted on the MLs. Cheers, Diederik