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Date: Wed, 25 Nov 2020 14:05:19 +0000 From: Will Deacon <will@...nel.org> To: Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>, Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>, Jordan Crouse <jcrouse@...eaurora.org>, Rob Clark <robdclark@...il.com> Cc: catalin.marinas@....com, kernel-team@...roid.com, Will Deacon <will@...nel.org>, Kristian H Kristensen <hoegsberg@...gle.com>, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, iommu@...ts.linux-foundation.org, Akhil P Oommen <akhilpo@...eaurora.org>, freedreno@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCHv10 0/9] System Cache support for GPU and required SMMU support On Wed, 25 Nov 2020 12:30:09 +0530, Sai Prakash Ranjan wrote: > Some hardware variants contain a system 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. > > [...] Applied the SMMU bits to arm64 (for-next/iommu/arm-smmu), thanks! [3/9] iommu/arm-smmu: Add support for pagetable config domain attribute https://git.kernel.org/arm64/c/c99110a865a3 [4/9] iommu/arm-smmu: Move non-strict mode to use io_pgtable_domain_attr https://git.kernel.org/arm64/c/12bc36793fd6 [8/9] iommu: arm-smmu-impl: Use table to list QCOM implementations https://git.kernel.org/arm64/c/00597f9ff5ec [9/9] iommu: arm-smmu-impl: Add a space before open parenthesis https://git.kernel.org/arm64/c/7f575a6087f4 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
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