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Message-Id: <20251110-kaana-gpu-support-v2-0-bef18acd5e94@oss.qualcomm.com>
Date: Mon, 10 Nov 2025 22:07:06 +0530
From: Akhil P Oommen <akhilpo@....qualcomm.com>
To: Rob Clark <robin.clark@....qualcomm.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>, Sean Paul <sean@...rly.run>,
Dmitry Baryshkov <lumag@...nel.org>,
Abhinav Kumar <abhinav.kumar@...ux.dev>,
Jessica Zhang <jesszhan0024@...il.com>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Jonathan Marek <jonathan@...ek.ca>,
Jordan Crouse <jordan@...micpenguin.net>,
Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
Joerg Roedel <joro@...tes.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Connor Abbott <cwabbott0@...il.com>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
devicetree@...r.kernel.org, Akhil P Oommen <akhilpo@....qualcomm.com>,
Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: [PATCH v2 00/21] drm/msm/adreno: Introduce Adreno 8xx family
support
This series adds the A8xx HWL along with Adreno 840 GPU support to the
drm-msm driver. A8x is the next generation in the Adreno family,
featuring a significant hardware design change. A major update to the
design is the introduction of 'Slice' architecture. Slices are sort of
mini-GPUs within the GPU which are more independent in processing Graphics
and compute workloads. Also, in addition to the BV and BR pipe we saw in
A7x, CP has more concurrency with additional pipes.
>From KMD-HW SWI perspective, there is significant register shuffling in
some of the blocks. For slice or aperture related registers which are
virtualized now, KMD/crashdumper has to configure an aperture register
to access them. On the GMU front, there are some shuffling in register
offsets, but it is manageable as of now. There is a new HFI message to
transfer data tables and new power related features to support higher
peak currents and thermal mitigations.
Adreno 840 GPU is the second generation architecture in the A8x family
present in Kaanapali (a.k.a Snapdragon 8 Elite Gen 5) chipset [1]. It
has a maximum of 3 slices with 2 SPs per slice. Along with the 3-slice
configuration, there is also another 2-slice SKU (Partial Slice SKU).
A840 GPU has a bigger 18MB of GMEM which can be utilized for graphics
and compute workload. It also features improved Concurrent binning
support, UBWC v6 etc.
Adreno X2-85 GPU present in Glymur chipset is very similar to A840
architecturally. So adding initial support for it requires just an
additional entry in the catalog with the necessary register lists.
This series adds only the driver side support along with a few dt bindings
updates. Devicetree patches will be sent separately, but those who
are interested can take look at it from the Qualcomm's public tree [2].
Features like coredump, gmu power features, ifpc, preemption etc will be
added in a future series.
Initial few patches are for improving code sharing between a6xx/a7xx and
a8x routines. Then there is a patch to rebase GMU register offsets from
GPU's base. Rest of the patches add A8x HWL and Adreno 840/X2-85 GPU
support.
Mesa support for A8x/A840 GPU is WIP and will be posted in the near
future.
[1] https://www.qualcomm.com/products/mobile/snapdragon/smartphones/snapdragon-8-series-mobile-platforms/snapdragon-8-elite-gen-5
[2] https://git.codelinaro.org/clo/linux-kernel/kernel-qcom/-/commit/5fb72c27909d56660db6afe8e3e08a09bd83a284
Signed-off-by: Akhil P Oommen <akhilpo@....qualcomm.com>
---
Changes in v2:
- Rebase on top of next-20251110 tag
- Include support for Glymur chipset
- Drop the ubwc_config driver patch as it is picked up
- Sync the latest a6xx register definitions from Rob's tree
- New patch to do LRZ flush to fix pagefaults
- Reuse a7xx_cx_mem_init(). Dropped related patch (Connor)
- Few changes around cp protect configuration to align it with downstream
- Fix the incorrect register usage at few places
- Updates to non-ctxt register list
- Serialize aperture updates (Rob)
- More helpful cp error irq logging
- Split A8x GMU support patch (Dmitry)
- Use devm_platform_get_and_ioremap_resource in GMU init (Konrad)
- Link to v1: https://lore.kernel.org/r/20250930-kaana-gpu-support-v1-0-73530b0700ed@oss.qualcomm.com
---
Akhil P Oommen (21):
drm/msm/a6xx: Flush LRZ cache before PT switch
drm/msm/a6xx: Fix the gemnoc workaround
drm/msm/adreno: Common-ize PIPE definitions
drm/msm/adreno: Create adreno_func->submit_flush()
drm/msm/adreno: Move adreno_gpu_func to catalogue
drm/msm/adreno: Move gbif_halt() to adreno_gpu_func
drm/msm/adreno: Add MMU fault handler to adreno_gpu_func
drm/msm/a6xx: Sync latest register definitions
drm/msm/a6xx: Rebase GMU register offsets
drm/msm/a8xx: Add support for A8x GMU
drm/msm/a6xx: Improve MX rail fallback in RPMH vote init
drm/msm/a6xx: Share dependency vote table with GMU
drm/msm/adreno: Introduce A8x GPU Support
drm/msm/adreno: Support AQE engine
drm/msm/a8xx: Add support for Adreno 840 GPU
drm/msm/adreno: Do CX GBIF config before GMU start
drm/msm/a8xx: Add support for Adreno X2-85 GPU
dt-bindings: arm-smmu: Add Kaanapali GPU SMMU
dt-bindings: display/msm/gmu: Add Adreno 840 GMU
dt-bindings: display/msm/gmu: Add Adreno X2-85 GMU
dt-bindings: arm-smmu: Add Glymur GPU SMMU
.../devicetree/bindings/display/msm/gmu.yaml | 60 +-
.../devicetree/bindings/iommu/arm,smmu.yaml | 2 +
drivers/gpu/drm/msm/Makefile | 2 +
drivers/gpu/drm/msm/adreno/a2xx_catalog.c | 7 +-
drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 50 +-
drivers/gpu/drm/msm/adreno/a2xx_gpu.h | 2 +
drivers/gpu/drm/msm/adreno/a3xx_catalog.c | 13 +-
drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 52 +-
drivers/gpu/drm/msm/adreno/a3xx_gpu.h | 2 +
drivers/gpu/drm/msm/adreno/a4xx_catalog.c | 7 +-
drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 54 +-
drivers/gpu/drm/msm/adreno/a4xx_gpu.h | 2 +
drivers/gpu/drm/msm/adreno/a5xx_catalog.c | 17 +-
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 61 +-
drivers/gpu/drm/msm/adreno/a5xx_gpu.h | 1 +
drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 411 ++++-
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 286 ++-
drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 25 +-
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 410 ++--
drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 32 +-
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 18 +-
drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 53 +
drivers/gpu/drm/msm/adreno/a6xx_hfi.h | 17 +
drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 1198 ++++++++++++
drivers/gpu/drm/msm/adreno/adreno_device.c | 4 +-
.../gpu/drm/msm/adreno/adreno_gen7_0_0_snapshot.h | 420 ++---
.../gpu/drm/msm/adreno/adreno_gen7_2_0_snapshot.h | 332 ++--
.../gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h | 470 ++---
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 39 +-
drivers/gpu/drm/msm/registers/adreno/a6xx.xml | 1951 +++++++++++++++-----
.../gpu/drm/msm/registers/adreno/a6xx_enums.xml | 2 +-
drivers/gpu/drm/msm/registers/adreno/a6xx_gmu.xml | 283 +--
.../gpu/drm/msm/registers/adreno/a7xx_enums.xml | 7 -
.../drm/msm/registers/adreno/a8xx_descriptors.xml | 120 ++
.../gpu/drm/msm/registers/adreno/a8xx_enums.xml | 289 +++
.../gpu/drm/msm/registers/adreno/adreno_common.xml | 12 +
36 files changed, 5056 insertions(+), 1655 deletions(-)
---
base-commit: edf57d8dafc63f9298a209e518ea6a2e0df78ed0
change-id: 20250929-kaana-gpu-support-11d21c8fa1dc
Best regards,
--
Akhil P Oommen <akhilpo@....qualcomm.com>
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