From: Emma Anholt <emma@anholt.net>
To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org,
freedreno@lists.freedesktop.org, Rob Clark <robdclark@gmail.com>,
Jordan Crouse <jordan@cosmicpenguin.net>,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>
Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
linux-arm-kernel@lists.infradead.org,
Emma Anholt <emma@anholt.net>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Subject: [PATCH v2 2/2] arm64: dts: qcom: sm8250: Enable per-process page tables.
Date: Mon, 20 Jun 2022 11:36:33 -0700 [thread overview]
Message-ID: <20220620183633.1131760-3-emma@anholt.net> (raw)
In-Reply-To: <20220620183633.1131760-1-emma@anholt.net>
This is an SMMU for the adreno gpu, and adding this compatible lets
the driver use per-fd page tables, which are required for security
between GPU clients.
Signed-off-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
v2: moved qcom,adreno-smmu earlier
arch/arm64/boot/dts/qcom/sm8250.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index a92230bec1dd..aae7b841b81a 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -2513,7 +2513,7 @@ gpucc: clock-controller@3d90000 {
};
adreno_smmu: iommu@3da0000 {
- compatible = "qcom,sm8250-smmu-500", "arm,mmu-500";
+ compatible = "qcom,sm8250-smmu-500", "qcom,adreno-smmu", "arm,mmu-500";
reg = <0 0x03da0000 0 0x10000>;
#iommu-cells = <2>;
#global-interrupts = <2>;
--
2.36.1
prev parent reply other threads:[~2022-06-20 18:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-20 18:36 [PATCH v2 0/2] per-process page tables for qcom 8250 Emma Anholt
2022-06-20 18:36 ` [PATCH v2 1/2] iommu: arm-smmu-impl: Add 8250 display compatible to the client list Emma Anholt
2022-06-20 18:36 ` Emma Anholt [this message]
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