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[85.229.41.228]) by smtp.gmail.com with ESMTPSA id q11-20020a2eb4ab000000b0025d75995a07sm781439ljm.24.2022.08.11.04.02.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Aug 2022 04:02:52 -0700 (PDT) Date: Thu, 11 Aug 2022 13:02:50 +0200 From: Anders Roxell To: Hamza Mahfooz Subject: Re: [PATCH v2 2/3] drm/amd/display: consider DSC pass-through during mode validation Message-ID: <20220811110250.GA520@mutt> References: <20220805211317.176672-1-hamza.mahfooz@amd.com> <20220805211317.176672-2-hamza.mahfooz@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20220805211317.176672-2-hamza.mahfooz@amd.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Mailman-Approved-At: Thu, 11 Aug 2022 14:00:04 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ian Chen , Sankeerth Billakanti , David Airlie , dri-devel@lists.freedesktop.org, Roman Li , Imran Khan , Kees Cook , Rodrigo Siqueira , Javier Martinez Canillas , amd-gfx@lists.freedesktop.org, Jani Nikula , Fangzhi Zuo , Aurabindo Pillai , Leo Li , hersenxs.wu@amd.com, Mikita Lipski , Bhawanpreet Lakha , "Pan, Xinhui" , linux-kernel@vger.kernel.org, Christian =?utf-8?B?S8O2bmln?= , Claudio Suarez , Thomas Zimmermann , Wayne Lin , Alex Deucher , Colin Ian King , Nicholas Kazlauskas Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 2022-08-05 17:13, Hamza Mahfooz wrote: > Add a mode validation routine for DSC pass-through. Both the link from > source to hub, and the link from hub to monitor are checked, according > to the current link training result and full pbn returned by enum path > resource sideband message. > > Pick up the minimum value as the bandwidth bottleneck for the end to > end link bandwidth constraint, and check if the maximum DSC decompression > bandwidth can fit. > > Co-authored-by: Fangzhi Zuo > Signed-off-by: Hamza Mahfooz Hi, Building an arm64 allmodconfig kernel from todays next tag, next-20220811. I can see the following build error. ERROR: modpost: "dc_dsc_compute_bandwidth_range" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! ERROR: modpost: "dc_dsc_get_policy_for_timing" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined! When I reverted this patch I was able to build an arm64 allmodconfig kernel. Cheers, Anders