linux-kernel - Re: [PATCH] dt-bindings: virtio,mmio: Allow setting devices 'dma-coherent'

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Message-ID: <Yjd7mhLw/aKVSsS7@robh.at.kernel.org>
Date:   Sun, 20 Mar 2022 15:08:10 -0400
From:   Rob Herring <robh@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     virtualization@...ts.linux-foundation.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jason Wang <jasowang@...hat.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: [PATCH] dt-bindings: virtio,mmio: Allow setting devices
 'dma-coherent'

On Wed, 09 Mar 2022 19:35:27 -0600, Rob Herring wrote:
> 'virtio,mmio' devices are always coherent within a guest. As Arm DTs
> are default non-coherent, the 'dma-coherent' property needs to be set on
> the virtio device to mark them as such. This aligns with the QEMU 'virt'
> machine DTB.
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>  Documentation/devicetree/bindings/virtio/mmio.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Applied, thanks!