From: Jordan Crouse <jcrouse@codeaurora•org>
To: linux-arm-msm@vger•kernel.org
Cc: devicetree@vger•kernel.org, Will Deacon <will@kernel•org>,
freedreno@lists•freedesktop.org, Joerg Roedel <joro@8bytes•org>,
linux-kernel@vger•kernel.org, iommu@lists•linux-foundation.org,
Rob Herring <robh+dt@kernel•org>,
Robin Murphy <robin.murphy@arm•com>,
linux-arm-kernel@lists•infradead.org
Subject: [PATCH v7 3/6] dt-bindings: arm-smmu: Add compatible string for Adreno GPU SMMU
Date: Thu, 4 Jun 2020 14:57:07 -0600 [thread overview]
Message-ID: <20200604205710.3167-4-jcrouse@codeaurora.org> (raw)
In-Reply-To: <20200604205710.3167-1-jcrouse@codeaurora.org>
Every Qcom Adreno GPU has an embedded SMMU for its own use. These
devices depend on unique features such as split pagetables,
different stall/halt requirements and other settings. Identify them
with a compatible string so that they can be identified in the
arm-smmu implementation specific code.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora•org>
---
Documentation/devicetree/bindings/iommu/arm,smmu.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index d7ceb4c34423..e52a1b146c97 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -38,6 +38,10 @@ properties:
- qcom,sc7180-smmu-500
- qcom,sdm845-smmu-500
- const: arm,mmu-500
+ - description: Qcom Adreno GPUs implementing "arm,smmu-v2"
+ items:
+ - const: qcom,adreno-smmu
+ - const: qcom,smmu-v2
- items:
- const: arm,mmu-500
- const: arm,smmu-v2
--
2.17.1
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next prev parent reply other threads:[~2020-06-04 20:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 20:57 [PATCH v7 0/6] iommu/arm-smmu: Enable split pagetable support Jordan Crouse
2020-06-04 20:57 ` [PATCH v7 1/6] iommu/arm-smmu: Pass io-pgtable config to implementation specific function Jordan Crouse
2020-06-04 20:57 ` [PATCH v7 2/6] iommu/arm-smmu: Add support for split pagetables Jordan Crouse
2020-06-04 20:57 ` Jordan Crouse [this message]
2020-06-04 20:57 ` [PATCH v7 4/6] iommu/arm-smmu: Add implementation for the adreno GPU SMMU Jordan Crouse
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