linux-kernel - Re: [PATCH] arm64: dts: qcom: sc8280xp: fix PCIe DMA coherency

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Message-Id: <167001472414.2721945.8639781336468185182.b4-ty@kernel.org>
Date:   Fri,  2 Dec 2022 14:58:48 -0600
From:   Bjorn Andersson <andersson@...nel.org>
To:     johan+linaro@...nel.org
Cc:     konrad.dybcio@...ainline.org,
        Manivannan Sadhasivam <mani@...nel.org>,
        catalin.marinas@....com, krzysztof.kozlowski+dt@...aro.org,
        robh+dt@...nel.org, will@...nel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, ardb@...nel.org,
        robin.murphy@....com, Christoph Hellwig <hch@....de>,
        agross@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sc8280xp: fix PCIe DMA coherency

On Thu, 24 Nov 2022 15:25:01 +0100, Johan Hovold wrote:
> The devices on the SC8280XP PCIe buses are cache coherent and must be
> marked as such to avoid data corruption.
> 
> A coherent device can, for example, end up snooping stale data from the
> caches instead of using data written by the CPU through the
> non-cacheable mapping which is used for consistent DMA buffers for
> non-coherent devices.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: sc8280xp: fix PCIe DMA coherency
      commit: 0922df8f52b88d5c718d0cfe10794ac44b95ac78

Best regards,
-- 
Bjorn Andersson <andersson@...nel.org>