linux-kernel - Re: [PATCHv10 0/9] System Cache support for GPU and required SMMU support

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Message-Id: <160630994849.3550201.9456322529162111327.b4-ty@kernel.org>
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