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Thu, 02 Jan 2020 11:02:26 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 3F65AC4479F; Thu, 2 Jan 2020 11:02:26 +0000 (UTC) Received: from smasetty-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: smasetty) by smtp.codeaurora.org (Postfix) with ESMTPSA id C9813C43383; Thu, 2 Jan 2020 11:02:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C9813C43383 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=smasetty@codeaurora.org From: Sharat Masetty To: freedreno@lists.freedesktop.org Subject: [PATCH v2 0/7] drm/msm/a6xx: System Cache Support Date: Thu, 2 Jan 2020 16:32:06 +0530 Message-Id: <1577962933-13577-1-git-send-email-smasetty@codeaurora.org> X-Mailer: git-send-email 1.9.1 Cc: will@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, dri-devel@freedesktop.org, robin.murphy@arm.com, Sharat Masetty X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Some hardware variants contain a system level cache or the last level cache(llc). This cache is typically a large block which is shared by multiple clients on the SOC. GPU uses the system cache to cache both the GPU data buffers(like textures) as well the SMMU pagetables. This helps with improved render performance as well as lower power consumption by reducing the bus traffic to the system memory. The system cache architecture allows the cache to be split into slices which then be used by multiple SOC clients. This patch series is an effort to enable and use two of those slices perallocated for the GPU, one for the GPU data buffers and another for the GPU SMMU hardware pagetables. v2: Code reviews and rebased code on top of Jordan's split pagetables series To enable the system cache driver, add [1] to your stack if not already present. Please review. [1] https://lore.kernel.org/patchwork/patch/1165298/ Jordan Crouse (3): iommu/arm-smmu: Pass io_pgtable_cfg to impl specific init_context drm/msm: Attach the IOMMU device during initialization drm/msm: Refactor address space initialization Sharat Masetty (3): drm: msm: a6xx: Properly free up the iommu objects drm/msm: rearrange the gpu_rmw() function drm/msm/a6xx: Add support for using system cache(LLC) Vivek Gautam (1): iommu/arm-smmu: Add domain attribute for QCOM system cache drivers/gpu/drm/msm/adreno/a2xx_gpu.c | 16 ++++ drivers/gpu/drm/msm/adreno/a3xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a4xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 1 + drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 124 +++++++++++++++++++++++++++++++ drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 3 + drivers/gpu/drm/msm/adreno/adreno_gpu.c | 23 ++++-- drivers/gpu/drm/msm/adreno/adreno_gpu.h | 8 ++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 19 ++--- drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c | 19 ++--- drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c | 4 - drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 19 +++-- drivers/gpu/drm/msm/msm_drv.c | 8 ++ drivers/gpu/drm/msm/msm_drv.h | 9 +-- drivers/gpu/drm/msm/msm_gem_vma.c | 37 ++------- drivers/gpu/drm/msm/msm_gpu.c | 49 +----------- drivers/gpu/drm/msm/msm_gpu.h | 9 +-- drivers/gpu/drm/msm/msm_gpummu.c | 7 -- drivers/gpu/drm/msm/msm_iommu.c | 22 +++--- drivers/gpu/drm/msm/msm_mmu.h | 5 +- drivers/iommu/arm-smmu-impl.c | 3 +- drivers/iommu/arm-smmu-qcom.c | 10 +++ drivers/iommu/arm-smmu.c | 25 +++++-- drivers/iommu/arm-smmu.h | 4 +- include/linux/iommu.h | 1 + 25 files changed, 269 insertions(+), 158 deletions(-) -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu