Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: arm,gic-v3: Add dma-noncoherent property

From: Rob Herring
Date: Wed Sep 06 2023 - 07:23:21 EST



On Wed, 06 Sep 2023 11:41:38 +0200, Lorenzo Pieralisi wrote:
> The GIC v3 specifications allow redistributors and ITSes interconnect
> ports used to access memory to be wired up in a way that makes the
> respective initiators/memory observers non-coherent.
>
> Add the standard dma-noncoherent property to the GICv3 bindings to
> allow firmware to describe the redistributors/ITSes components and
> interconnect ports behaviour in system designs where the redistributors
> and ITSes are not coherent with the CPU.
>
> Signed-off-by: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> ---
> .../bindings/interrupt-controller/arm,gic-v3.yaml | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>

Reviewed-by: Rob Herring <robh@xxxxxxxxxx>