linux-kernel - Re: [PATCH 00/14] A7xx support

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Date:   Thu, 3 Aug 2023 10:48:03 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/14] A7xx support

On 28/06/2023 22:35, Konrad Dybcio wrote:
> This series attempts to introduce Adreno 700 support (with A730 and A740
> found on SM8450 and SM8550 respectively), reusing much of the existing
> A6xx code. This submission largely lays the groundwork for expansion and
> more or less gives us feature parity (on the kernel side, that is) with
> existing A6xx parts.
> 
> On top of introducing a very messy set of three (!) separate and
> obfuscated deivce identifiers for each 7xx part, this generation
> introduces very sophisticated hardware multi-threading and (on some SKUs)
> hardware ray-tracing (not supported yet).
> 
> After this series, a long-overdue cleanup of drm/msm/adreno is planned
> in preparation for adding more features and removing some hardcoding.
> 
> The last patch is a hack that may or may not be necessary depending
> on your board's humour.. eh.. :/
> 
> Developed atop (and hence depends on) [1]
> 
> The corresponding devicetree patches are initially available at [2] and
> will be posted after this series gets merged. To test it, you'll also need
> firmware that you need to obtain from your board (there's none with a
> redistributable license, sorry..). Most likely it will be in one of
> these directories on your stock android installation:
> 
> * /vendor/firmware
> * /vendor/firmware_mnt
> * /system
> 
> ..but some vendors make it hard and you have to do some grepping ;)
> 
> Requires [3] to work on the userspace side. You'll almost cerainly want
> to test it alongside Zink with a lot of debug flags (early impl), like:
> 
> TU_DEBUG=sysmem,nolrz,flushall,noubwc MESA_LOADER_DRIVER_OVERRIDE=zink kmscube
> 
> [1] https://lore.kernel.org/linux-arm-msm/20230517-topic-a7xx_prep-v4-0-b16f273a91d4@linaro.org/
> [2] https://github.com/SoMainline/linux/commits/topic/a7xx_dt
> [3] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23217
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
> Konrad Dybcio (14):
>        dt-bindings: display/msm/gmu: Add Adreno 7[34]0 GMU
>        dt-bindings: display/msm/gmu: Allow passing QMP handle
>        dt-bindings: display/msm/gpu: Allow A7xx SKUs
>        drm/msm/a6xx: Add missing regs for A7XX
>        drm/msm/a6xx: Introduce a6xx_llc_read
>        drm/msm/a6xx: Move LLC accessors to the common header
>        drm/msm/a6xx: Bail out early if setting GPU OOB fails
>        drm/msm/a6xx: Add skeleton A7xx support
>        drm/msm/a6xx: Send ACD state to QMP at GMU resume
>        drm/msm/a6xx: Mostly implement A7xx gpu_state
>        drm/msm/a6xx: Add A730 support
>        drm/msm/a6xx: Add A740 support
>        drm/msm/a6xx: Vastly increase HFI timeout
>        [RFC] drm/msm/a6xx: Poll for GBIF unhalt status in hw_init
> 
>   .../devicetree/bindings/display/msm/gmu.yaml       |  47 +-
>   .../devicetree/bindings/display/msm/gpu.yaml       |   4 +-
>   drivers/gpu/drm/msm/adreno/a6xx.xml.h              |   9 +
>   drivers/gpu/drm/msm/adreno/a6xx_gmu.c              | 188 ++++--
>   drivers/gpu/drm/msm/adreno/a6xx_gmu.h              |   3 +
>   drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h          |   8 +
>   drivers/gpu/drm/msm/adreno/a6xx_gpu.c              | 658 ++++++++++++++++++---
>   drivers/gpu/drm/msm/adreno/a6xx_gpu.h              |  15 +
>   drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c        |  52 +-
>   drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h        |  61 +-
>   drivers/gpu/drm/msm/adreno/a6xx_hfi.c              |  90 ++-
>   drivers/gpu/drm/msm/adreno/adreno_device.c         |  26 +
>   drivers/gpu/drm/msm/adreno/adreno_gpu.c            |   7 +-
>   drivers/gpu/drm/msm/adreno/adreno_gpu.h            |  24 +-
>   drivers/gpu/drm/msm/msm_ringbuffer.h               |   2 +
>   15 files changed, 1070 insertions(+), 124 deletions(-)
> ---
> base-commit: 6f9b660e9cbb30669fcfec83288d527c0844717d
> change-id: 20230628-topic-a7xx_drmmsm-123f30d76cf7
> 
> Best regards,

Tested-by: Neil Armstrong <neil.armstrong@...aro.org> # on SM8550-QRD