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R. Silva" , Ulf Hansson , kernel@collabora.com, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hardening@vger.kernel.org, linux-pm@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Oct 3, 2025 at 2:41=E2=80=AFPM Chia-I Wu wrote: > > On Fri, Oct 3, 2025 at 1:16=E2=80=AFPM Nicolas Frattaroli > wrote: > > > > Various MediaTek SoCs use GPU integration silicon named "MFlexGraphics" > > by MediaTek. On the MT8196 and MT6991 SoCs, interacting with this > > integration silicon is required to power on the GPU. > > > > This glue silicon is in the form of an embedded microcontroller running > > special-purpose firmware, which autonomously adjusts clocks and > > regulators. > > > > Implement a driver, modelled as a pmdomain driver with a > > set_performance_state operation, to support these SoCs. > I like this model a lot. Thanks! > > panthor might potentially need to interact with this driver beyond > what pmdomain provides. I am thinking about querying > GF_REG_SHADER_PRESENT. Not sure if we've heard back from the vendor. > Have you considered moving this to drivers/soc/mediatek such that we > can provide include/linux/mtk-mfg.h to panthor? I meant to say include/linux/soc/mediatek/mtk-mfg.h.