On Wed, Dec 31, 2025 at 12:45 AM Akhil P Oommen <[email protected]> wrote: > > This is a respin of an old series [1] that aimed to add support for > Adreno 612 GPU found in SM6150/QCS615 chipsets. In this version, we > have consolidated the previously separate series for DT and driver > support, along with some significant rework. > > Regarding A612 GPU, it falls under ADRENO_6XX_GEN1 family and is a cut > down version of A615 GPU. A612 has a new IP called Reduced Graphics > Management Unit or RGMU, a small state machine which helps to toggle > GX GDSC (connected to CX rail) to implement the IFPC feature. Unlike a > full-fledged GMU, the RGMU does not support features such as clock > control, resource voting via RPMh, HFI etc. Therefore, we require linux > clock driver support similar to gmu-wrapper implementations to control > gpu core clock and GX GDSC. > > In this series, the description of RGMU hardware in devicetree is more > complete than in previous version. However, the RGMU core is not > initialized from the driver as there is currently no need for it. We do > perform a dummy load of RGMU firmware (now available in linux-firmware) > to ensure that enabling RGMU core in the future won't break backward > compatibility for users. > > Due to significant changes compared to the old series, all R-b tags have > been dropped. Please review with fresh eyes. > > Last 3 patches are for Bjorn and the rest are for Rob Clark for pick up.
I guess you meant the last 4 patches are for Bjorn? BR, -R > > [1] Driver: > https://lore.kernel.org/lkml/[email protected]/ > Devicetree: > https://lore.kernel.org/lkml/fu4rayftf3i4arf6l6bzqyzsctomglhpiniljkeuj74ftvzlpo@vklca2giwjlw/ > > Signed-off-by: Akhil P Oommen <[email protected]> > --- > Changes in v6: > - Move the rgmu register range update from patch#8 to patch#6. > - Capture trailers > - Link to v5: > https://lore.kernel.org/r/[email protected] > > Changes in v5: > - Rebase on v6.19-rc2 > - Make the reg list in A612 GPU's binding doc stricter (Krzysztof) > - Link to v4: > https://lore.kernel.org/r/[email protected] > > Changes in v4: > - Rebased on top of next-20251204 tag > - Added a new patch to simplify gpu dt schema (Krzysztof) > - Added a new patch for GPU cooling support (Gaurav) > - Updated the gpu/gmu register range in DT to be more accurate > - Remove 290Mhz corner for GPU as that is not present in downstream > - Link to v3: > https://lore.kernel.org/r/[email protected] > > Changes in v3: > - Rebased on top of next-20251121 tag > - Drop a612 driver support patch as it got picked up > - Rename rgmu.yaml -> qcom,adreno-rgmu.yaml (Krzysztof) > - Remove reg-names property for rgmu node (Krzysztof) > - Use 'gmu' instead of 'rgmu' as node name (Krzysztof) > - Describe cx_mem and cx_dgc register ranges (Krzysztof) > - A new patch to retrieve gmu core reg resource by id > - Link to v2: > https://lore.kernel.org/r/[email protected] > > Changes in v2: > - Rebased on next-20251105 > - Fix hwcg configuration (Dan) > - Reuse a few gmu-wrapper routines (Konrad) > - Split out rgmu dt schema (Krzysztof/Dmitry) > - Fixes for GPU dt binding doc (Krzysztof) > - Removed VDD_CX from rgmu dt node. Will post a separate series to > address the gpucc changes (Konrad) > - Fix the reg range size for adreno smmu node and reorder the properties > (Konrad) > - Link to v1: > https://lore.kernel.org/r/[email protected] > > --- > Akhil P Oommen (3): > drm/msm/a6xx: Retrieve gmu core range by index > dt-bindings: display/msm: gpu: Simplify conditional schema logic > dt-bindings: display/msm: gpu: Document A612 GPU > > Gaurav Kohli (1): > arm64: dts: qcom: talos: Add GPU cooling > > Jie Zhang (3): > dt-bindings: display/msm/rgmu: Document A612 RGMU > arm64: dts: qcom: talos: Add gpu and rgmu nodes > arm64: dts: qcom: qcs615-ride: Enable Adreno 612 GPU > > Qingqing Zhou (1): > arm64: dts: qcom: talos: add the GPU SMMU node > > .../devicetree/bindings/display/msm/gpu.yaml | 89 +++++++++--- > .../bindings/display/msm/qcom,adreno-rgmu.yaml | 126 +++++++++++++++++ > MAINTAINERS | 1 + > arch/arm64/boot/dts/qcom/qcs615-ride.dts | 8 ++ > arch/arm64/boot/dts/qcom/talos.dtsi | 149 > +++++++++++++++++++++ > drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 14 +- > 6 files changed, 357 insertions(+), 30 deletions(-) > --- > base-commit: 2408853dde584f01950a0f976b743739cce30eca > change-id: 20251015-qcs615-spin-2-ed45b0deb998 > > Best regards, > -- > Akhil P Oommen <[email protected]> >
