Merge tag 'dmaengine-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "New support:

   - Apple admac t8112 device support

   - StarFive JH7110 DMA controller

  Updates:

   - Big pile of idxd updates to support IAA 2.0 device capabilities,
     DSA 2.0 Event Log and completion record faulting features and
     new DSA operations

   - at_xdmac supend & resume updates and driver code cleanup

   - k3-udma supend & resume support

   - k3-psil thread support for J784s4"

* tag 'dmaengine-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (57 commits)
  dmaengine: idxd: add per wq PRS disable
  dmaengine: idxd: add pid to exported sysfs attribute for opened file
  dmaengine: idxd: expose fault counters to sysfs
  dmaengine: idxd: add a device to represent the file opened
  dmaengine: idxd: add per file user counters for completion record faults
  dmaengine: idxd: process batch descriptor completion record faults
  dmaengine: idxd: add descs_completed field for completion record
  dmaengine: idxd: process user page faults for completion record
  dmaengine: idxd: add idxd_copy_cr() to copy user completion record during page fault handling
  dmaengine: idxd: create kmem cache for event log fault items
  dmaengine: idxd: add per DSA wq workqueue for processing cr faults
  dmanegine: idxd: add debugfs for event log dump
  dmaengine: idxd: add interrupt handling for event log
  dmaengine: idxd: setup event log configuration
  dmaengine: idxd: add event log size sysfs attribute
  dmaengine: idxd: make misc interrupt one shot
  dt-bindings: dma: snps,dw-axi-dmac: constrain the items of resets for JH7110 dma
  dt-bindings: dma: Drop unneeded quotes
  dmaengine: at_xdmac: align declaration of ret with the rest of variables
  dmaengine: at_xdmac: add a warning message regarding for unpaused channels
  ...

Author: torvalds

Documentation/ABI/stable/sysfs-driver-dma-idxd

@@ -136,6 +136,22 @@ Description:	The last executed device administrative command's status/error.
 		Also last configuration error overloaded.
 		Writing to it will clear the status.
 
+What:		/sys/bus/dsa/devices/dsa<m>/iaa_cap
+Date:		Sept 14, 2022
+KernelVersion: 6.0.0
+Contact:	dmaengine@vger.kernel.org
+Description:	IAA (IAX) capability mask. Exported to user space for application
+		consumption. This attribute should only be visible on IAA devices
+		that are version 2 or later.
+
+What:		/sys/bus/dsa/devices/dsa<m>/event_log_size
+Date:		Sept 14, 2022
+KernelVersion: 6.4.0
+Contact:	dmaengine@vger.kernel.org
+Description:	The event log size to be configured. Default is 64 entries and
+		occupies 4k size if the evl entry is 64 bytes. It's visible
+		only on platforms that support the capability.
+
 What:		/sys/bus/dsa/devices/wq<m>.<n>/block_on_fault
 Date:		Oct 27, 2020
 KernelVersion:	5.11.0
@@ -219,6 +235,16 @@ Contact:	dmaengine@vger.kernel.org
 Description:	Indicate whether ATS disable is turned on for the workqueue.
 		0 indicates ATS is on, and 1 indicates ATS is off for the workqueue.
 
+What:		/sys/bus/dsa/devices/wq<m>.<n>/prs_disable
+Date:		Sept 14, 2022
+KernelVersion: 6.4.0
+Contact:	dmaengine@vger.kernel.org
+Description:	Controls whether PRS disable is turned on for the workqueue.
+		0 indicates PRS is on, and 1 indicates PRS is off for the
+		workqueue. This option overrides block_on_fault attribute
+		if set. It's visible only on platforms that support the
+		capability.
+
 What:		/sys/bus/dsa/devices/wq<m>.<n>/occupancy
 Date		May 25, 2021
 KernelVersion:	5.14.0
@@ -302,3 +328,28 @@ Description:	Allows control of the number of batch descriptors that can be
 		1 (1/2 of max value), 2 (1/4 of the max value), and 3 (1/8 of
 		the max value). It's visible only on platforms that support
 		the capability.
+
+What:		/sys/bus/dsa/devices/wq<m>.<n>/dsa<x>\!wq<m>.<n>/file<y>/cr_faults
+Date:		Sept 14, 2022
+KernelVersion:	6.4.0
+Contact:	dmaengine@vger.kernel.org
+Description:	Show the number of Completion Record (CR) faults this application
+		has caused.
+
+What:		/sys/bus/dsa/devices/wq<m>.<n>/dsa<x>\!wq<m>.<n>/file<y>/cr_fault_failures
+Date:		Sept 14, 2022
+KernelVersion:	6.4.0
+Contact:	dmaengine@vger.kernel.org
+Description:	Show the number of Completion Record (CR) faults failures that this
+		application has caused. The failure counter is incremented when the
+		driver cannot fault in the address for the CR. Typically this is caused
+		by a bad address programmed in the submitted descriptor or a malicious
+		submitter is using bad CR address on purpose.
+
+What:		/sys/bus/dsa/devices/wq<m>.<n>/dsa<x>\!wq<m>.<n>/file<y>/pid
+Date:		Sept 14, 2022
+KernelVersion:	6.4.0
+Contact:	dmaengine@vger.kernel.org
+Description:	Show the process id of the application that opened the file. This is
+		helpful information for a monitor daemon that wants to kill the
+		application that opened the file.

Documentation/devicetree/bindings/dma/apple,admac.yaml

@@ -26,6 +26,7 @@ properties:
       - enum:
           - apple,t6000-admac
           - apple,t8103-admac
+          - apple,t8112-admac
       - const: apple,admac
 
   reg:

Documentation/devicetree/bindings/dma/qcom,gpi.yaml

@@ -24,6 +24,7 @@ properties:
           - qcom,sm6350-gpi-dma
       - items:
           - enum:
+              - qcom,qcm2290-gpi-dma
               - qcom,qdu1000-gpi-dma
               - qcom,sc7280-gpi-dma
               - qcom,sm6115-gpi-dma

Documentation/devicetree/bindings/dma/renesas,rz-dmac.yaml

@@ -54,6 +54,11 @@ properties:
       - description: DMA main clock
       - description: DMA register access clock
 
+  clock-names:
+    items:
+      - const: main
+      - const: register
+
   '#dma-cells':
     const: 1
     description:
@@ -77,16 +82,23 @@ properties:
       - description: Reset for DMA ARESETN reset terminal
       - description: Reset for DMA RST_ASYNC reset terminal
 
+  reset-names:
+    items:
+      - const: arst
+      - const: rst_async
+
 required:
   - compatible
   - reg
   - interrupts
   - interrupt-names
   - clocks
+  - clock-names
   - '#dma-cells'
   - dma-channels
   - power-domains
   - resets
+  - reset-names
 
 additionalProperties: false
 
@@ -124,9 +136,11 @@ examples:
                           "ch12", "ch13", "ch14", "ch15";
         clocks = <&cpg CPG_MOD R9A07G044_DMAC_ACLK>,
                  <&cpg CPG_MOD R9A07G044_DMAC_PCLK>;
+        clock-names = "main", "register";
         power-domains = <&cpg>;
         resets = <&cpg R9A07G044_DMAC_ARESETN>,
                  <&cpg R9A07G044_DMAC_RST_ASYNC>;
+        reset-names = "arst", "rst_async";
         #dma-cells = <1>;
         dma-channels = <16>;
     };

Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

@@ -20,6 +20,7 @@ properties:
     enum:
       - snps,axi-dma-1.01a
       - intel,kmb-axi-dma
+      - starfive,jh7110-axi-dma
 
   reg:
     minItems: 1
@@ -58,7 +59,8 @@ properties:
     maximum: 8
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   snps,dma-masters:
     description: |
@@ -109,6 +111,25 @@ required:
   - snps,priority
   - snps,block-size
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - starfive,jh7110-axi-dma
+then:
+  properties:
+    resets:
+      minItems: 2
+      items:
+        - description: AXI reset line
+        - description: AHB reset line
+        - description: module reset
+else:
+  properties:
+    resets:
+      maxItems: 1
+
 additionalProperties: false
 
 examples:

Documentation/devicetree/bindings/dma/ti/k3-udma.yaml

@@ -43,7 +43,7 @@ description: |
   configuration of the legacy peripheral.
 
 allOf:
-  - $ref: "../dma-controller.yaml#"
+  - $ref: ../dma-controller.yaml#
   - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
 
 properties:

Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml

@@ -15,7 +15,7 @@ maintainers:
   - Michael Tretter <m.tretter@pengutronix.de>
 
 allOf:
-  - $ref: "../dma-controller.yaml#"
+  - $ref: ../dma-controller.yaml#
 
 properties:
   "#dma-cells":

Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml

@@ -16,7 +16,7 @@ maintainers:
   - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
 allOf:
-  - $ref: "../dma-controller.yaml#"
+  - $ref: ../dma-controller.yaml#
 
 properties:
   "#dma-cells":

drivers/dma/Kconfig

@@ -623,6 +623,7 @@ config TEGRA186_GPC_DMA
 	depends on (ARCH_TEGRA || COMPILE_TEST) && ARCH_DMA_ADDR_T_64BIT
 	depends on IOMMU_API
 	select DMA_ENGINE
+	select DMA_VIRTUAL_CHANNELS
 	help
 	  Support for the NVIDIA Tegra General Purpose Central DMA controller.
 	  The DMA controller has multiple DMA channels which can be configured