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.
The last patch in the series ("drm/msm/a8xx: Add UBWC v6 support") has a compile time dependency on the below patch from the qcom-soc tree ("soc: qcom: ubwc: Add config for Kaanapali"): https://lore.kernel.org/lkml/20250930-kaana-gpu-support-v1-1-73530b0700ed@os...
[1] https://www.qualcomm.com/products/mobile/snapdragon/smartphones/snapdragon-8... [2] https://git.codelinaro.org/clo/linux-kernel/kernel-qcom/-/commit/5fb72c27909...
Signed-off-by: Akhil P Oommen akhilpo@oss.qualcomm.com --- Changes in v4: - Rebase on top of msm-next - Clean up AQE bo during a6xx_destroy (Konrad) - Split out UBWC v6 support into a separate patch to ease merge (Rob) - Rebase gmu register list's offsets in a6xx_gpu_state - Add a new patch#1 to fix Out of boud register access - Link to v3: https://lore.kernel.org/r/20251114-kaana-gpu-support-v3-0-92300c7ec8ff@oss.q...
Changes in v3: - Squash gpu smmu bindings patches for Kaana and Glymur (Krzysztof) - Reuse a6xx_flush() and drop the patch that added submit_flush callback - Fix GBIF configs for a640 and a650 family (Konrad) - Add partial SKU detection support - Correct Chipids in the catalog - Add a new patch to drop SCRATCH reg dumps (Rob) - Read slice info right after CX gdsc is up - Don't drop raytracing support if preemption is unsupported - Drop the unused A840 pwrup list (Konrad) - Updates to A840 nonctxt list (Rob) - Capture trailers - Link to v2: https://lore.kernel.org/r/20251110-kaana-gpu-support-v2-0-bef18acd5e94@oss.q...
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.q...
--- Akhil P Oommen (22): drm/msm/a6xx: Fix out of bound IO access in a6xx_get_gmu_registers drm/msm/a6xx: Flush LRZ cache before PT switch drm/msm/a6xx: Fix the gemnoc workaround drm/msm/a6xx: Skip dumping SCRATCH registers drm/msm/adreno: Common-ize PIPE definitions 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 and Glymur GPU SMMU dt-bindings: display/msm/gmu: Add Adreno 840 GMU dt-bindings: display/msm/gmu: Add Adreno X2-85 GMU drm/msm/a8xx: Add UBWC v6 support
.../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 | 371 +++- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 287 ++- drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 25 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 399 ++-- drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 31 +- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 74 +- 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 | 1205 ++++++++++++ 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 | 38 +- drivers/gpu/drm/msm/registers/adreno/a6xx.xml | 1954 +++++++++++++++----- .../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 + 37 files changed, 5043 insertions(+), 1684 deletions(-) --- base-commit: 50a0b122cfc8a7dc35009ef9bf33cf6034c7bd69 change-id: 20250929-kaana-gpu-support-11d21c8fa1dc prerequisite-message-id: 20250930-kaana-gpu-support-v1-1-73530b0700ed@oss.qualcomm.com prerequisite-patch-id: f15bd99b078d228da892fb1224e10cac31f4a5c2 prerequisite-patch-id: 5b3d152595fbcce7c118d42c00f89160bbf03d41 prerequisite-patch-id: 4387aff0073a3217132ae5da358e5d4b2cb23cb3 prerequisite-patch-id: e047a6ea27db881db0089923af688c38729a7dad prerequisite-patch-id: e686f7f592194f7d5e943858ce4dab49da6f4d18 prerequisite-patch-id: 638bc6f946cb2c1a2c68c3713a1ce7e6839c3465 prerequisite-patch-id: a85a264e87f79e9ac34dc22124153b050f97dded prerequisite-patch-id: 8bba83cdb88cb7a8851978590cb24033d95c21de prerequisite-patch-id: 9f08bcf9e33501478a2312e7a317f730f167652d prerequisite-patch-id: 65a2884909f6f0e3f111412388fde0c18a4a3334 prerequisite-patch-id: 3e9a011409f3461e3de7b1a8a4e99de6fbf02abf prerequisite-patch-id: 0ae4c8dc17fd54c84d903badccdf7a2018ec5606 prerequisite-patch-id: 6e0829024fb62bfc4510ef4c5472392dc76efcbf prerequisite-patch-id: 5e5e177cb37fd1c0151568744565483809f357ba prerequisite-patch-id: c2236f76a9fda88c41ea535708be1b51fd4d444c prerequisite-patch-id: 6e26922186365d994987026b674baa66f9ac0139 prerequisite-patch-id: 784df303a9e75f062c1e069d2bdb88578a76ba0e
Best regards,