Merge tag 'v4.16-rc6' into perf/core, to pick up fixes

  Associate an event fd to an AFU interrupt so that the user process

  can be notified when the AFU sends an interrupt.

OCXL_IOCTL_GET_METADATA:

  Obtains configuration information from the card, such at the size of

  MMIO areas, the AFU version, and the PASID for the current context.

mmap

----

  interrupts.

Optional properties:

- clocks: Optional reference to the clock used by the XOR engine.

- clocks: Optional reference to the clocks used by the XOR engine.

- clock-names: mandatory if there is a second clock, in this case the

   name must be "core" for the first clock and "reg" for the second

   one

Example:

      - "renesas,etheravb-r8a7795" for the R8A7795 SoC.

      - "renesas,etheravb-r8a7796" for the R8A7796 SoC.

      - "renesas,etheravb-r8a77970" for the R8A77970 SoC.

      - "renesas,etheravb-r8a77980" for the R8A77980 SoC.

      - "renesas,etheravb-r8a77995" for the R8A77995 SoC.

      - "renesas,etheravb-rcar-gen3" as a fallback for the above

		R-Car Gen3 devices.

  configured in FS mode;

  - "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs

  configured in HS mode;

  - "st,stm32f7xx-hsotg": The DWC2 USB HS controller instance in STM32F7xx SoCs

  - "st,stm32f7-hsotg": The DWC2 USB HS controller instance in STM32F7 SoCs

    configured in HS mode;

- reg : Should contain 1 register range (address and length)

- interrupts : Should contain 1 interrupt

  - compatible: Must contain one of the following:

	- "renesas,r8a7795-usb3-peri"

	- "renesas,r8a7796-usb3-peri"

	- "renesas,r8a77965-usb3-peri"

	- "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 compatible

	  device