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Sun, 05 Jul 2026 12:14:13 -0700 (PDT) From: Anna Maniscalco Subject: [RFC PATCH 00/13] Enable LPAC on a7xx series GPUs Date: Sun, 05 Jul 2026 21:13:34 +0200 Message-Id: <20260705-descriptive-name-lpac-upstream-v1-0-01d50c3e0c99@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXNwQrCMAyA4VcZORtIN63gq4iHtosacbUk3RDG3 t2qx+/y/ysYq7DBqVtBeRGTV25wuw7SPeQbo4zN0FPvydOAI1tSKVUWxhwmxmcJCediVTlMeBw oOL+Pjg4RWqQoX+X9G5wvf9scH5zqtwrb9gEd3ZUqggAAAA== X-Change-ID: 20260603-descriptive-name-lpac-upstream-730a164b105b To: Rob Clark , Will Deacon , Robin Murphy , Joerg Roedel , Sean Paul , Konrad Dybcio , Akhil P Oommen , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, Anna Maniscalco X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783278851; l=2538; i=anna.maniscalco2000@gmail.com; s=20240815; h=from:subject:message-id; bh=8dMwcHoLl0Z1JzcMDPMcwAdi90HhpnlCPh0AzVY5gFw=; b=Q83mQkQCI/ZbHgZyMczAaUD07W0pExCURYUI+AfeuCtFffXnVzp1aiJOAaTDPf13rw1Fzn+7X WRuPw2v96y4CWwkfRLibXR6NQ9DulNdUY/gYM6XuxmEibN0Vv7DXr+i X-Developer-Key: i=anna.maniscalco2000@gmail.com; a=ed25519; pk=0zicFb38tVla+iHRo4kWpOMsmtUrpGBEa7LkFF81lyY= This series enables LPAC on a7xx GPUs Currently hangcheck and recovery are broken as the patches to make them work depend on https://lore.kernel.org/linux-arm-msm/20250911-preemption_aware_hangcheck-v1-0-974819876819@gmail.com/ The series also depends on https://lore.kernel.org/linux-arm-msm/177919116291.814652.1720687887970998122.b4-ty@kernel.org/ to work correctly. Signed-off-by: Anna Maniscalco --- Anna Maniscalco (13): iommu: arm-smmu-qcom: Configure lpac device with split address space drm/msm: add support for lpac_domain in msm_mmu drm/msm: look for lpac from dts arm64: dts: qcom: sm8650: move smmu sid 1 to new lpac device firmware: qcom: scm: Configure LPAC aperture DEBUGGING: print contextbank and other ttbrs on fault iommu: arm-smmu-qcom: Fixed mapping between sid and cb for gpu and lpac HACK: use cb1 address in lpac dtb node temp: add LPAC regs drm/msm: initialize LPAC ring drm/msm: Add LPAC submitqueue drm/msm: set ctxbank and asid based on ring drm/msm: add lpac ring to devcoredump arch/arm64/boot/dts/qcom/sm8650.dtsi | 12 +- drivers/firmware/qcom/qcom_scm.c | 18 +++ drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 1 + drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 191 +++++++++++++++++++++----- drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 2 +- drivers/gpu/drm/msm/adreno/adreno_device.c | 6 + drivers/gpu/drm/msm/adreno/adreno_gpu.c | 79 +++++++---- drivers/gpu/drm/msm/msm_gem_submit.c | 6 +- drivers/gpu/drm/msm/msm_gpu.c | 29 +++- drivers/gpu/drm/msm/msm_gpu.h | 17 ++- drivers/gpu/drm/msm/msm_iommu.c | 158 ++++++++++++++++++--- drivers/gpu/drm/msm/msm_mmu.h | 7 +- drivers/gpu/drm/msm/msm_submitqueue.c | 11 +- drivers/gpu/drm/msm/registers/adreno/a6xx.xml | 14 ++ drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 37 ++++- include/linux/adreno-smmu-priv.h | 2 + include/linux/firmware/qcom/qcom_scm.h | 1 + include/uapi/drm/msm_drm.h | 2 + 19 files changed, 492 insertions(+), 103 deletions(-) --- base-commit: 9a967125427e03c7ebc24d7ad26e9307e8403d4e change-id: 20260603-descriptive-name-lpac-upstream-730a164b105b Best regards, -- Anna Maniscalco