IOMMU Archive on lore.kernel.org
 help / color / Atom feed
From: Jon Hunter <jonathanh@nvidia.com>
To: Krishna Reddy <vdumpa@nvidia.com>, <joro@8bytes.org>,
	<will@kernel.org>, <robin.murphy@arm.com>, <robh+dt@kernel.org>,
	<treding@nvidia.com>
Cc: snikam@nvidia.com, devicetree@vger.kernel.org,
	nicoleotsuka@gmail.com, mperttunen@nvidia.com,
	bhuntsman@nvidia.com, yhsu@nvidia.com,
	linux-kernel@vger.kernel.org, talho@nvidia.com,
	iommu@lists.linux-foundation.org, nicolinc@nvidia.com,
	linux-tegra@vger.kernel.org, praithatha@nvidia.com,
	linux-arm-kernel@lists.infradead.org, bbiswas@nvidia.com
Subject: Re: [PATCH v9 3/4] dt-bindings: arm-smmu: add binding for Tegra194 SMMU
Date: Wed, 1 Jul 2020 09:19:54 +0100
Message-ID: <689714e8-a5bb-7d13-f2f2-ee26b2c53811@nvidia.com> (raw)
In-Reply-To: <20200630235752.8737-4-vdumpa@nvidia.com>


On 01/07/2020 00:57, Krishna Reddy wrote:
> Add binding for NVIDIA's Tegra194 SoC SMMU topology that is based
> on ARM MMU-500.
> 
> Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
> ---
>  .../devicetree/bindings/iommu/arm,smmu.yaml    | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> index d7ceb4c34423b..662c46e16f07d 100644
> --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
> @@ -38,6 +38,11 @@ properties:
>                - qcom,sc7180-smmu-500
>                - qcom,sdm845-smmu-500
>            - const: arm,mmu-500
> +      - description: NVIDIA SoCs that use more than one "arm,mmu-500"
> +        items:
> +          - enum:
> +              - nvidia,tegra194-smmu
> +          - const: arm,mmu-500

We should also address Robin's comments here. I don't think that we ever
want to fail back to just the regular 'arm,mmu-500' and should be should
probably just drop this part.

Jon

-- 
nvpublic
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

  reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 23:57 [PATCH v9 0/4] NVIDIA ARM SMMUv2 Implementation Krishna Reddy
2020-06-30 23:57 ` [PATCH v9 1/4] iommu/arm-smmu: move TLB timeout and spin count macros Krishna Reddy
2020-06-30 23:57 ` [PATCH v9 2/4] iommu/arm-smmu: add NVIDIA implementation for ARM MMU-500 usage Krishna Reddy
2020-07-01  8:16   ` Jon Hunter
2020-06-30 23:57 ` [PATCH v9 3/4] dt-bindings: arm-smmu: add binding for Tegra194 SMMU Krishna Reddy
2020-07-01  8:19   ` Jon Hunter [this message]
2020-06-30 23:57 ` [PATCH v9 4/4] iommu/arm-smmu: add global/context fault implementation hooks Krishna Reddy

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=689714e8-a5bb-7d13-f2f2-ee26b2c53811@nvidia.com \
    --to=jonathanh@nvidia.com \
    --cc=bbiswas@nvidia.com \
    --cc=bhuntsman@nvidia.com \
    --cc=devicetree@vger.kernel.org \
    --cc=iommu@lists.linux-foundation.org \
    --cc=joro@8bytes.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-tegra@vger.kernel.org \
    --cc=mperttunen@nvidia.com \
    --cc=nicoleotsuka@gmail.com \
    --cc=nicolinc@nvidia.com \
    --cc=praithatha@nvidia.com \
    --cc=robh+dt@kernel.org \
    --cc=robin.murphy@arm.com \
    --cc=snikam@nvidia.com \
    --cc=talho@nvidia.com \
    --cc=treding@nvidia.com \
    --cc=vdumpa@nvidia.com \
    --cc=will@kernel.org \
    --cc=yhsu@nvidia.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

IOMMU Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-iommu/0 linux-iommu/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-iommu linux-iommu/ https://lore.kernel.org/linux-iommu \
		iommu@lists.linux-foundation.org
	public-inbox-index linux-iommu

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.linux-foundation.lists.iommu


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git