[PATCH v2 0/2] per-process page tables for qcom 8250

[PATCH v2 0/2] per-process page tables for qcom 8250

[Emma Anholt]

This enable per-process page tables on the Qualcomm RB5 boards I'm
setting up for Mesa CI.  Has survived a full deqp-vk run.

v2: moved qcom,adreno-smmu compatible earlier

Emma Anholt (2):
  iommu: arm-smmu-impl: Add 8250 display compatible to the client list.
  arm64: dts: qcom: sm8250: Enable per-process page tables.

 arch/arm64/boot/dts/qcom/sm8250.dtsi       | 2 +-
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

-- 
2.36.1

[PATCH v2 1/2] iommu: arm-smmu-impl: Add 8250 display compatible to the client list.

[Emma Anholt]

Required for turning on per-process page tables for the GPU.

Signed-off-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
index d8e1ef83c01b..bb9220937068 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c
@@ -233,6 +233,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = {
 	{ .compatible = "qcom,sc7280-mdss" },
 	{ .compatible = "qcom,sc7280-mss-pil" },
 	{ .compatible = "qcom,sc8180x-mdss" },
+	{ .compatible = "qcom,sm8250-mdss" },
 	{ .compatible = "qcom,sdm845-mdss" },
 	{ .compatible = "qcom,sdm845-mss-pil" },
 	{ }
-- 
2.36.1

[PATCH v2 2/2] arm64: dts: qcom: sm8250: Enable per-process page tables.

[Emma Anholt]

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