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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-31 19:56:54 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-31 19:56:54 +0300 |
commit | e1cbc3b96a9974746b2a80c3a6c8a0f7eff7b1b5 (patch) | |
tree | 83c969a9dc2ba9c0dda2f9d04369b5f8c0563521 /Documentation/devicetree/bindings/iommu | |
parent | 3335d5550256210c9b213f67240221633d8f7b53 (diff) | |
parent | b0dacee202efbf1a5d9f5cdfd82049e8b5b085d2 (diff) | |
download | linux-e1cbc3b96a9974746b2a80c3a6c8a0f7eff7b1b5.tar.xz |
Merge tag 'iommu-updates-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- Intel VT-d driver updates:
- Domain force snooping improvement.
- Cleanups, no intentional functional changes.
- ARM SMMU driver updates:
- Add new Qualcomm device-tree compatible strings
- Add new Nvidia device-tree compatible string for Tegra234
- Fix UAF in SMMUv3 shared virtual addressing code
- Force identity-mapped domains for users of ye olde SMMU legacy
binding
- Minor cleanups
- Fix a BUG_ON in the vfio_iommu_group_notifier:
- Groundwork for upcoming iommufd framework
- Introduction of DMA ownership so that an entire IOMMU group is
either controlled by the kernel or by user-space
- MT8195 and MT8186 support in the Mediatek IOMMU driver
- Make forcing of cache-coherent DMA more coherent between IOMMU
drivers
- Fixes for thunderbolt device DMA protection
- Various smaller fixes and cleanups
* tag 'iommu-updates-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (88 commits)
iommu/amd: Increase timeout waiting for GA log enablement
iommu/s390: Tolerate repeat attach_dev calls
iommu/vt-d: Remove hard coding PGSNP bit in PASID entries
iommu/vt-d: Remove domain_update_iommu_snooping()
iommu/vt-d: Check domain force_snooping against attached devices
iommu/vt-d: Block force-snoop domain attaching if no SC support
iommu/vt-d: Size Page Request Queue to avoid overflow condition
iommu/vt-d: Fold dmar_insert_one_dev_info() into its caller
iommu/vt-d: Change return type of dmar_insert_one_dev_info()
iommu/vt-d: Remove unneeded validity check on dev
iommu/dma: Explicitly sort PCI DMA windows
iommu/dma: Fix iova map result check bug
iommu/mediatek: Fix NULL pointer dereference when printing dev_name
iommu: iommu_group_claim_dma_owner() must always assign a domain
iommu/arm-smmu: Force identity domains for legacy binding
iommu/arm-smmu: Support Tegra234 SMMU
dt-bindings: arm-smmu: Add compatible for Tegra234 SOC
dt-bindings: arm-smmu: Document nvidia,memory-controller property
iommu/arm-smmu-qcom: Add SC8280XP support
dt-bindings: arm-smmu: Add compatible for Qualcomm SC8280XP
...
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
3 files changed, 46 insertions, 23 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml index da5381c8ee11..76fc2c0f4d54 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml @@ -37,8 +37,10 @@ properties: - qcom,sc7180-smmu-500 - qcom,sc7280-smmu-500 - qcom,sc8180x-smmu-500 + - qcom,sc8280xp-smmu-500 - qcom,sdm845-smmu-500 - qcom,sdx55-smmu-500 + - qcom,sdx65-smmu-500 - qcom,sm6350-smmu-500 - qcom,sm8150-smmu-500 - qcom,sm8250-smmu-500 @@ -62,8 +64,9 @@ properties: for improved performance. items: - enum: - - nvidia,tegra194-smmu - nvidia,tegra186-smmu + - nvidia,tegra194-smmu + - nvidia,tegra234-smmu - const: nvidia,smmu-500 - items: - const: arm,mmu-500 @@ -157,6 +160,17 @@ properties: power-domains: maxItems: 1 + nvidia,memory-controller: + description: | + A phandle to the memory controller on NVIDIA Tegra186 and later SoCs. + The memory controller needs to be programmed with a mapping of memory + client IDs to ARM SMMU stream IDs. + + If this property is absent, the mapping programmed by early firmware + will be used and it is not guaranteed that IOMMU translations will be + enabled for any given device. + $ref: /schemas/types.yaml#/definitions/phandle + required: - compatible - reg @@ -172,13 +186,20 @@ allOf: compatible: contains: enum: - - nvidia,tegra194-smmu - nvidia,tegra186-smmu + - nvidia,tegra194-smmu + - nvidia,tegra234-smmu then: properties: reg: minItems: 1 maxItems: 2 + + # The reference to the memory controller is required to ensure that the + # memory client to stream ID mapping can be done synchronously with the + # IOMMU attachment. + required: + - nvidia,memory-controller else: properties: reg: diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml index 97e8c471a5e8..2ae3bbad7f1a 100644 --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml @@ -76,7 +76,11 @@ properties: - mediatek,mt8167-m4u # generation two - mediatek,mt8173-m4u # generation two - mediatek,mt8183-m4u # generation two + - mediatek,mt8186-iommu-mm # generation two - mediatek,mt8192-m4u # generation two + - mediatek,mt8195-iommu-vdo # generation two + - mediatek,mt8195-iommu-vpp # generation two + - mediatek,mt8195-iommu-infra # generation two - description: mt7623 generation one items: @@ -119,7 +123,9 @@ properties: dt-binding/memory/mt8167-larb-port.h for mt8167, dt-binding/memory/mt8173-larb-port.h for mt8173, dt-binding/memory/mt8183-larb-port.h for mt8183, + dt-binding/memory/mt8186-memory-port.h for mt8186, dt-binding/memory/mt8192-larb-port.h for mt8192. + dt-binding/memory/mt8195-memory-port.h for mt8195. power-domains: maxItems: 1 @@ -128,7 +134,6 @@ required: - compatible - reg - interrupts - - mediatek,larbs - '#iommu-cells' allOf: @@ -140,7 +145,10 @@ allOf: - mediatek,mt2701-m4u - mediatek,mt2712-m4u - mediatek,mt8173-m4u + - mediatek,mt8186-iommu-mm - mediatek,mt8192-m4u + - mediatek,mt8195-iommu-vdo + - mediatek,mt8195-iommu-vpp then: required: @@ -150,12 +158,26 @@ allOf: properties: compatible: enum: + - mediatek,mt8186-iommu-mm - mediatek,mt8192-m4u + - mediatek,mt8195-iommu-vdo + - mediatek,mt8195-iommu-vpp then: required: - power-domains + - if: # The IOMMUs don't have larbs. + not: + properties: + compatible: + contains: + const: mediatek,mt8195-iommu-infra + + then: + required: + - mediatek,larbs + additionalProperties: false examples: @@ -173,13 +195,3 @@ examples: <&larb3>, <&larb4>, <&larb5>; #iommu-cells = <1>; }; - - - | - #include <dt-bindings/memory/mt8173-larb-port.h> - - /* Example for a client device */ - display { - compatible = "mediatek,mt8173-disp"; - iommus = <&iommu M4U_PORT_DISP_OVL0>, - <&iommu M4U_PORT_DISP_RDMA0>; - }; diff --git a/Documentation/devicetree/bindings/iommu/samsung,sysmmu.yaml b/Documentation/devicetree/bindings/iommu/samsung,sysmmu.yaml index 783c6b37c9f0..672a0beea600 100644 --- a/Documentation/devicetree/bindings/iommu/samsung,sysmmu.yaml +++ b/Documentation/devicetree/bindings/iommu/samsung,sysmmu.yaml @@ -86,16 +86,6 @@ examples: - | #include <dt-bindings/clock/exynos5250.h> - gsc_0: scaler@13e00000 { - compatible = "samsung,exynos5-gsc"; - reg = <0x13e00000 0x1000>; - interrupts = <0 85 0>; - power-domains = <&pd_gsc>; - clocks = <&clock CLK_GSCL0>; - clock-names = "gscl"; - iommus = <&sysmmu_gsc0>; - }; - sysmmu_gsc0: iommu@13e80000 { compatible = "samsung,exynos-sysmmu"; reg = <0x13E80000 0x1000>; |