On 9/24/2026 7:36 PM, Connor Abbott wrote: > On Thu, Sep 24, 2026 at 9:41 AM Akhil P Oommen <[email protected]> > wrote: >> >> >> >> On 9/24/2026 12:54 AM, Connor Abbott wrote: >>> On Wed, Sep 23, 2026 at 6:26 AM Akhil P Oommen <[email protected]> >>> wrote: >>>> >>>> Adreno 850 is the next generation of A8x GPU present in Hawi SoC. It shares >>>> the ADRENO_8XX_GEN2 family and slice architecture with A840, but has many >>>> architectural improvements. There is a new block Matrix core (MALU) which >>>> helps to accelerate certain compute workloads. Also, there is a new Bx rail >>>> that powes a part of the GPU IP. GMU is now powered by a dedicated GDSC >>>> powered by MxG rail. >>> >>> If there is a dedicated rail for GMU, then >>> VK_KHR_calibrated_timestamps is likely broken, assuming that the GMU >>> AO counter is on this rail. The AO offset logic in kgsl probably needs >>> to be ported here. Has this been tested? >> >> Not sure how GMU core's power domain affect the AO timer. Could you please >> point >> me to the AO offset related change in KGSL? I will check. > > Previously the GMU AO counter was part of CX, which is kept on by > other things in the system, so it continues to tick even if the GPU is > suspended. However kgsl does not rely on that, and recalibrates the > GMU AO timer whenever booting the GMU [1], which we currently don't KGSL doesn't do that during every resume. KGSL recalibrates it only after a system suspend. The AO counter is still in CX MISC which is under CX domain. So it should not be affected in Hawi. -Akhil. > do. I don't know if the timer is still part of CX, but if not, then > this part of kgsl could become load-bearing in a way it wasn't before. > It seems possible that it isn't part of CX anymore, given your > description that GMU and other things have been moved to new > GPU-specific power domains. > > Connor > > [1] > https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/graphics-kernel/-/blob/gfx-kernel.lnx.16.0.r14-rel/adreno_gen8.c?ref_type=heads#L917 > >> >> -Akhil. >>> >>> Connor >>> >>>> >>>> Maili GPU (Adreno 845) is very similar to A850, except that it doesn't >>>> have the MALU block. >>>> >>>> We will post the Mesa support and linux-firmware support soon. MALU support >>>> will be brought in separately along with its support in Mesa. >>>> >>>> As there is no display support available for Hawi/Maili, validated >>>> offscreen >>>> testcases that render basic triangles, glmark2-offscreen etc. >>>> >>>> The driver/dt-binding patches are for Rob to pickup and the DT patches >>>> are for Bjorn. >>>> >>>> Signed-off-by: Akhil P Oommen <[email protected]> >>>> --- >>>> To: Rob Clark <[email protected]> >>>> To: Sean Paul <[email protected]> >>>> To: Konrad Dybcio <[email protected]> >>>> To: Akhil P Oommen <[email protected]> >>>> To: Dmitry Baryshkov <[email protected]> >>>> To: Abhinav Kumar <[email protected]> >>>> To: Jessica Zhang <[email protected]> >>>> To: Marijn Suijten <[email protected]> >>>> To: David Airlie <[email protected]> >>>> To: Simona Vetter <[email protected]> >>>> To: Jordan Crouse <[email protected]> >>>> To: Maarten Lankhorst <[email protected]> >>>> To: Maxime Ripard <[email protected]> >>>> To: Thomas Zimmermann <[email protected]> >>>> To: Rob Herring <[email protected]> >>>> To: Krzysztof Kozlowski <[email protected]> >>>> To: Conor Dooley <[email protected]> >>>> To: Bjorn Andersson <[email protected]> >>>> Cc: [email protected] >>>> Cc: [email protected] >>>> Cc: [email protected] >>>> Cc: [email protected] >>>> Cc: [email protected] >>>> >>>> --- >>>> Akhil P Oommen (11): >>>> drm/msm/a6xx: Honor perfmode_bw threshold on A8x >>>> drm/msm/a6xx: Fix secondary rail vote in ARC votes >>>> drm/msm/a6xx: Fix RPMH dependency votes >>>> drm/msm/a6xx: Factor out RPMh arc-vote helpers >>>> drm/msm/a6xx: Add BX rail support to GMU dependency votes >>>> drm/msm/a6xx: Clamp MX dependency vote >>>> drm/msm/a8xx: Add Adreno 850 support >>>> drm/msm/a6xx: Send THINMEM config to GMU for A850 >>>> dt-bindings: display/msm: Document A850 GPU and GMU >>>> arm64: dts: qcom: hawi: Add GPU support >>>> arm64: dts: qcom: hawi-mtp: Enable GPU >>>> >>>> Bhaskar Reddy Valluru (4): >>>> drm/msm/a8xx: Add Adreno 845 support >>>> dt-bindings: display/msm: Document A845 GPU and GMU >>>> arm64: dts: qcom: maili: Add GPU support >>>> arm64: dts: qcom: maili-mtp: Enable GPU >>>> >>>> .../devicetree/bindings/display/msm/gmu.yaml | 90 ++++- >>>> .../devicetree/bindings/display/msm/gpu.yaml | 4 + >>>> arch/arm64/boot/dts/qcom/hawi-mtp.dts | 8 + >>>> arch/arm64/boot/dts/qcom/hawi.dtsi | 336 ++++++++++++++++ >>>> arch/arm64/boot/dts/qcom/maili-mtp.dts | 8 + >>>> arch/arm64/boot/dts/qcom/maili.dtsi | 309 ++++++++++++++ >>>> drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 446 >>>> +++++++++++++++++++++ >>>> drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 231 +++++++---- >>>> drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 1 + >>>> drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 2 + >>>> drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 25 ++ >>>> drivers/gpu/drm/msm/adreno/a6xx_hfi.h | 1 + >>>> drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 16 +- >>>> drivers/gpu/drm/msm/adreno/adreno_gpu.h | 21 + >>>> drivers/gpu/drm/msm/registers/adreno/a6xx.xml | 8 + >>>> 15 files changed, 1407 insertions(+), 99 deletions(-) >>>> --- >>>> base-commit: 1e9b8055458b92f9ebab6f39d97ade5265a0b012 >>>> change-id: 20260811-hawi-gpu-05b4ecfc3c4c >>>> prerequisite-message-id: >>>> [email protected] >>>> prerequisite-patch-id: 239c169e15da44519b2dad09ecd92f0052757929 >>>> prerequisite-patch-id: 6c586be864944bb1eed773e8c211b898bb1289fe >>>> prerequisite-patch-id: f3d8748ccdb6760563f3e07f701a18388a9408ed >>>> prerequisite-patch-id: b1639353868bed10fd3cbfcd01cfb88b7e737ead >>>> prerequisite-message-id: >>>> [email protected] >>>> prerequisite-patch-id: 36f12c16bf9cb0411d8be2f396407c724162189d >>>> prerequisite-patch-id: 28ede1ab83d4b5b56423ebb09bae74b6599b3bac >>>> prerequisite-patch-id: 6b3e28c55c07bfcdca8bfa9219fa0c6c763c6f6e >>>> prerequisite-patch-id: a2007fdaaeaf2981860c54ae5514f5a6f06c6bb3 >>>> prerequisite-patch-id: af8aa3c630647336bdaeffa9c88de3650f1e49e4 >>>> >>>> Best regards, >>>> -- >>>> Akhil P Oommen <[email protected]> >>>> >>
