| Message ID | 20241114004713.42404-6-mailingradian@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | iommu/arm-smmu-qcom: Add SDM670 SMMU v2 | expand |
On Wed, Nov 13, 2024 at 07:47:16PM -0500, Richard Acayan wrote: > Add the compatible for the separate IOMMU on SDM670 for the Adreno GPU. > > This IOMMU has the compatible strings: > > "qcom,sdm670-smmu-v2", "qcom,adreno-smmu", "qcom,smmu-v2" > > While the SMMU 500 doesn't need an entry for this specific SoC, the > SMMU v2 compatible should have its own entry, as the fallback entry in > arm-smmu.c handles "qcom,smmu-v2" without per-process page table support > unless there is an entry here. This entry can't be the > "qcom,adreno-smmu" compatible because dedicated GPU IOMMUs can also be > SMMU 500 with different handling. > > Signed-off-by: Richard Acayan <mailingradian@gmail.com> > --- > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 + > 1 file changed, 1 insertion(+) Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > index 6372f3e25c4b..601fb878d0ef 100644 > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > @@ -567,6 +567,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { > { .compatible = "qcom,sc8180x-smmu-500", .data = &qcom_smmu_500_impl0_data }, > { .compatible = "qcom,sc8280xp-smmu-500", .data = &qcom_smmu_500_impl0_data }, > { .compatible = "qcom,sdm630-smmu-v2", .data = &qcom_smmu_v2_data }, > + { .compatible = "qcom,sdm670-smmu-v2", .data = &qcom_smmu_v2_data }, > { .compatible = "qcom,sdm845-smmu-v2", .data = &qcom_smmu_v2_data }, > { .compatible = "qcom,sdm845-smmu-500", .data = &sdm845_smmu_500_data }, > { .compatible = "qcom,sm6115-smmu-500", .data = &qcom_smmu_500_impl0_data}, > -- > 2.47.0 >
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 6372f3e25c4b..601fb878d0ef 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -567,6 +567,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,sc8180x-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sc8280xp-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sdm630-smmu-v2", .data = &qcom_smmu_v2_data }, + { .compatible = "qcom,sdm670-smmu-v2", .data = &qcom_smmu_v2_data }, { .compatible = "qcom,sdm845-smmu-v2", .data = &qcom_smmu_v2_data }, { .compatible = "qcom,sdm845-smmu-500", .data = &sdm845_smmu_500_data }, { .compatible = "qcom,sm6115-smmu-500", .data = &qcom_smmu_500_impl0_data},
Add the compatible for the separate IOMMU on SDM670 for the Adreno GPU. This IOMMU has the compatible strings: "qcom,sdm670-smmu-v2", "qcom,adreno-smmu", "qcom,smmu-v2" While the SMMU 500 doesn't need an entry for this specific SoC, the SMMU v2 compatible should have its own entry, as the fallback entry in arm-smmu.c handles "qcom,smmu-v2" without per-process page table support unless there is an entry here. This entry can't be the "qcom,adreno-smmu" compatible because dedicated GPU IOMMUs can also be SMMU 500 with different handling. Signed-off-by: Richard Acayan <mailingradian@gmail.com> --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 1 + 1 file changed, 1 insertion(+)