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Sat, 17 Oct 2026 10:38:05 -0700 (PDT) Received: from timur-max.localnet ([2806:105e:c:e386:8deb:92a3:40ef:908c]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-844d2ffbf71sm2750983a34.4.2026.10.17.10.38.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 17 Oct 2026 10:38:05 -0700 (PDT) From: Timur =?UTF-8?B?S3Jpc3TDs2Y=?= To: contact@mikaelpelle.com Cc: amd-gfx@lists.freedesktop.org Subject: Re: [PATCH 1/2] drm/amd/pm/si: Check AMD_IS_MOBILITY flag for PPSMC_SYSTEMFLAG_GPIO_DC Date: Sat, 17 Oct 2026 11:38:04 -0600 Message-ID: In-Reply-To: <000801dd5dbb$2a3de5b0$7eb9b110$@mikaelpelle.com> References: <000801dd5dbb$2a3de5b0$7eb9b110$@mikaelpelle.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On 2026. okt=C3=B3ber 16., p=C3=A9ntek 16:10:32 k=C3=B6z=C3=A9ps=C5=91 =C3= =A1llamokbeli z=C3=B3naid=C5=91=20 contact@mikaelpelle.com wrote: > Hi Timur, >=20 > A quick follow-up from the same MacPro6,1 with dual FirePro D700s. > I have now tested the fixes after they reached stock stable kernels: > > - Linux 6.18.57-1-lts:=20 > both GPUs correctly transition from 300/150 MHz idle to 850/1370 MHz un= der > Vulkan compute load, then return to 300/150 MHz afterward. >=20 > - Linux 7.2.10-arch1-1: > same result; both D700s reach 850/1370 MHz correctly under load. >=20 > For comparison, Linux 7.2.9, before these stable backports, still kept bo= th > GPUs at 300/150 MHz under the same type of compute workload. >=20 > So I can confirm that the stable backports of: > drm/amd/pm/si: Check AMD_IS_MOBILITY flag for PPSMC_SYSTEMFLAG_GPIO_DC > drm/amd/pm/si: Fix updating clock limits on AC/DC > resolve the DPM issue on the dual FirePro D700 in the MacPro6,1. >=20 > Thanks for the fixes. >=20 Hi Mikael, Thank you for testing. I'm happy to hear that the patches are working well for you! Best regards, Timur