From: Bjorn Andersson <andersson@kernel.org>
To: johan+linaro@kernel.org
Cc: konrad.dybcio@somainline.org,
Manivannan Sadhasivam <mani@kernel.org>,
catalin.marinas@arm.com, krzysztof.kozlowski+dt@linaro.org,
robh+dt@kernel.org, will@kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, ardb@kernel.org,
robin.murphy@arm.com, Christoph Hellwig <hch@lst.de>,
agross@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sc8280xp: fix PCIe DMA coherency
Date: Fri, 2 Dec 2022 14:58:48 -0600 [thread overview]
Message-ID: <167001472414.2721945.8639781336468185182.b4-ty@kernel.org> (raw)
In-Reply-To: <20221124142501.29314-1-johan+linaro@kernel.org>
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@kernel.org>
prev parent reply other threads:[~2022-12-02 20:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 14:25 Johan Hovold
2022-11-24 14:32 ` Konrad Dybcio
2022-11-25 14:26 ` Manivannan Sadhasivam
2022-11-25 14:43 ` Johan Hovold
2022-11-25 14:53 ` Manivannan Sadhasivam
2022-11-25 15:49 ` Johan Hovold
2022-12-02 20:58 ` Bjorn Andersson [this message]
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