Merge tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Pull iommu updates from Will Deacon:
 "Core:

   - Support for the "ats-supported" device-tree property

   - Removal of the 'ops' field from 'struct iommu_fwspec'

   - Introduction of iommu_paging_domain_alloc() and partial conversion
     of existing users

   - Introduce 'struct iommu_attach_handle' and provide corresponding
     IOMMU interfaces which will be used by the IOMMUFD subsystem

   - Remove stale documentation

   - Add missing MODULE_DESCRIPTION() macro

   - Misc cleanups

  Allwinner Sun50i:

   - Ensure bypass mode is disabled on H616 SoCs

   - Ensure page-tables are allocated below 4GiB for the 32-bit
     page-table walker

   - Add new device-tree compatible strings

  AMD Vi:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

  Arm SMMUv2:

   - Print much more useful information on context faults

   - Fix Qualcomm TBU probing when CONFIG_ARM_SMMU_QCOM_DEBUG=n

   - Add new Qualcomm device-tree bindings

  Arm SMMUv3:

   - Support for hardware update of access/dirty bits and reporting via
     IOMMUFD

   - More driver rework from Jason, this time updating the PASID/SVA
     support to prepare for full IOMMUFD support

   - Add missing MODULE_DESCRIPTION() macro

   - Minor fixes and cleanups

  NVIDIA Tegra:

   - Fix for benign fwspec initialisation issue exposed by rework on the
     core branch

  Intel VT-d:

   - Use try_cmpxchg64() instead of cmpxchg64() when updating pte

   - Use READ_ONCE() to read volatile descriptor status

   - Remove support for handling Execute-Requested requests

   - Avoid calling iommu_domain_alloc()

   - Minor fixes and refactoring

  Qualcomm MSM:

   - Updates to the device-tree bindings"

* tag 'iommu-updates-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (72 commits)
  iommu/tegra-smmu: Pass correct fwnode to iommu_fwspec_init()
  iommu/vt-d: Fix identity map bounds in si_domain_init()
  iommu: Move IOMMU_DIRTY_NO_CLEAR define
  dt-bindings: iommu: Convert msm,iommu-v0 to yaml
  iommu/vt-d: Fix aligned pages in calculate_psi_aligned_address()
  iommu/vt-d: Limit max address mask to MAX_AGAW_PFN_WIDTH
  docs: iommu: Remove outdated Documentation/userspace-api/iommu.rst
  arm64: dts: fvp: Enable PCIe ATS for Base RevC FVP
  iommu/of: Support ats-supported device-tree property
  dt-bindings: PCI: generic: Add ats-supported property
  iommu: Remove iommu_fwspec ops
  OF: Simplify of_iommu_configure()
  ACPI: Retire acpi_iommu_fwspec_ops()
  iommu: Resolve fwspec ops automatically
  iommu/mediatek-v1: Clean up redundant fwspec checks
  RDMA/usnic: Use iommu_paging_domain_alloc()
  wifi: ath11k: Use iommu_paging_domain_alloc()
  wifi: ath10k: Use iommu_paging_domain_alloc()
  drm/msm: Use iommu_paging_domain_alloc()
  vhost-vdpa: Use iommu_paging_domain_alloc()
  ...

6 files changed, 95 insertions, 67 deletions

diff --git a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
index e20016f12017..a8409db4a3e3 100644
--- a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
@@ -17,7 +17,12 @@ properties:
       The content of the cell is the master ID.
 
   compatible:
-    const: allwinner,sun50i-h6-iommu
+    oneOf:
+      - const: allwinner,sun50i-h6-iommu
+      - const: allwinner,sun50i-h616-iommu
+      - items:
+          - const: allwinner,sun55i-a523-iommu
+          - const: allwinner,sun50i-h616-iommu
 
   reg:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index 5c130cf06a21..280b4e49f219 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -86,6 +86,7 @@ properties:
               - qcom,qcm2290-smmu-500
               - qcom,sa8775p-smmu-500
               - qcom,sc7280-smmu-500
+              - qcom,sc8180x-smmu-500
               - qcom,sc8280xp-smmu-500
               - qcom,sm6115-smmu-500
               - qcom,sm6125-smmu-500
@@ -95,6 +96,7 @@ properties:
               - qcom,sm8450-smmu-500
               - qcom,sm8550-smmu-500
               - qcom,sm8650-smmu-500
+              - qcom,x1e80100-smmu-500
           - const: qcom,adreno-smmu
           - const: qcom,smmu-500
           - const: arm,mmu-500
@@ -415,6 +417,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,sc8180x-smmu-500
               - qcom,sm6350-smmu-v2
               - qcom,sm7150-smmu-v2
               - qcom,sm8150-smmu-500
@@ -520,6 +523,7 @@ allOf:
             - enum:
                 - qcom,sm8550-smmu-500
                 - qcom,sm8650-smmu-500
+                - qcom,x1e80100-smmu-500
             - const: qcom,adreno-smmu
             - const: qcom,smmu-500
             - const: arm,mmu-500
@@ -550,14 +554,12 @@ allOf:
               - nvidia,smmu-500
               - qcom,qdu1000-smmu-500
               - qcom,sc7180-smmu-500
-              - qcom,sc8180x-smmu-500
               - qcom,sdm670-smmu-500
               - qcom,sdm845-smmu-500
               - qcom,sdx55-smmu-500
               - qcom,sdx65-smmu-500
               - qcom,sm6350-smmu-500
               - qcom,sm6375-smmu-500
-              - qcom,x1e80100-smmu-500
     then:
       properties:
         clock-names: false
diff --git a/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt b/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt
deleted file mode 100644
index 20236385f26e..000000000000
--- a/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-* QCOM IOMMU
-
-The MSM IOMMU is an implementation compatible with the ARM VMSA short
-descriptor page tables. It provides address translation for bus masters outside
-of the CPU, each connected to the IOMMU through a port called micro-TLB.
-
-Required Properties:
-
-  - compatible: Must contain "qcom,apq8064-iommu".
-  - reg: Base address and size of the IOMMU registers.
-  - interrupts: Specifiers for the MMU fault interrupts. For instances that
-    support secure mode two interrupts must be specified, for non-secure and
-    secure mode, in that order. For instances that don't support secure mode a
-    single interrupt must be specified.
-  - #iommu-cells: The number of cells needed to specify the stream id. This
-		  is always 1.
-  - qcom,ncb:	  The total number of context banks in the IOMMU.
-  - clocks	: List of clocks to be used during SMMU register access. See
-		  Documentation/devicetree/bindings/clock/clock-bindings.txt
-		  for information about the format. For each clock specified
-		  here, there must be a corresponding entry in clock-names
-		  (see below).
-
-  - clock-names	: List of clock names corresponding to the clocks specified in
-		  the "clocks" property (above).
-		  Should be "smmu_pclk" for specifying the interface clock
-		  required for iommu's register accesses.
-		  Should be "smmu_clk" for specifying the functional clock
-		  required by iommu for bus accesses.
-
-Each bus master connected to an IOMMU must reference the IOMMU in its device
-node with the following property:
-
-  - iommus: A reference to the IOMMU in multiple cells. The first cell is a
-	    phandle to the IOMMU and the second cell is the stream id.
-	    A single master device can be connected to more than one iommu
-	    and multiple contexts in each of the iommu. So multiple entries
-	    are required to list all the iommus and the stream ids that the
-	    master is connected to.
-
-Example: mdp iommu and its bus master
-
-                mdp_port0: iommu@7500000 {
-			compatible = "qcom,apq8064-iommu";
-			#iommu-cells = <1>;
-			clock-names =
-			    "smmu_pclk",
-			    "smmu_clk";
-			clocks =
-			    <&mmcc SMMU_AHB_CLK>,
-			    <&mmcc MDP_AXI_CLK>;
-			reg = <0x07500000 0x100000>;
-			interrupts =
-			    <GIC_SPI 63 0>,
-			    <GIC_SPI 64 0>;
-			qcom,ncb = <2>;
-		};
-
-		mdp: qcom,mdp@5100000 {
-			compatible = "qcom,mdp";
-			...
-			iommus = <&mdp_port0 0
-				  &mdp_port0 2>;
-		};
diff --git a/Documentation/devicetree/bindings/iommu/qcom,apq8064-iommu.yaml b/Documentation/devicetree/bindings/iommu/qcom,apq8064-iommu.yaml
new file mode 100644
index 000000000000..9f83f851e61a
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/qcom,apq8064-iommu.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/iommu/qcom,apq8064-iommu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm APQ8064 IOMMU
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+description:
+  The MSM IOMMU is an implementation compatible with the ARM VMSA short
+  descriptor page tables. It provides address translation for bus masters
+  outside of the CPU, each connected to the IOMMU through a port called micro-TLB.
+
+properties:
+  compatible:
+    const: qcom,apq8064-iommu
+
+  clocks:
+    items:
+      - description: interface clock for register accesses
+      - description: functional clock for bus accesses
+
+  clock-names:
+    items:
+      - const: smmu_pclk
+      - const: iommu_clk
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: Specifiers for the MMU fault interrupts.
+    minItems: 1
+    items:
+      - description: non-secure mode interrupt
+      - description: secure mode interrupt (for instances which supports it)
+
+  "#iommu-cells":
+    const: 1
+    description: Each IOMMU specifier describes a single Stream ID.
+
+  qcom,ncb:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: The total number of context banks in the IOMMU.
+    minimum: 1
+    maximum: 4
+
+required:
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - qcom,ncb
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,mmcc-msm8960.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    iommu@7500000 {
+            compatible = "qcom,apq8064-iommu";
+            reg = <0x07500000 0x100000>;
+            interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&clk SMMU_AHB_CLK>,
+                     <&clk MDP_AXI_CLK>;
+            clock-names = "smmu_pclk",
+                          "iommu_clk";
+            #iommu-cells = <1>;
+            qcom,ncb = <2>;
+    };
diff --git a/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml b/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
index a74eb899c381..571e5746d177 100644
--- a/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/qcom,iommu.yaml
@@ -25,6 +25,7 @@ properties:
           - const: qcom,msm-iommu-v1
       - items:
           - enum:
+              - qcom,msm8953-iommu
               - qcom,msm8976-iommu
           - const: qcom,msm-iommu-v2
 
diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
index 3484e0b4b412..bcfbaf5582cc 100644
--- a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
+++ b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
@@ -110,6 +110,12 @@ properties:
   iommu-map-mask: true
   msi-parent: true
 
+  ats-supported:
+    description:
+      Indicates that a PCIe host controller supports ATS, and can handle Memory
+      Requests with Address Type (AT).
+    type: boolean
+
 required:
   - compatible
   - reg