Merge tag 'irq-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for the interrupt subsystem:

  Treewide:

    - Cleanup of setup_irq() which is not longer required because the
      memory allocator is available early.

      Most cleanup changes come through the various maintainer trees, so
      the final removal of setup_irq() is postponed towards the end of
      the merge window.

  Core:

    - Protection against unsafe invocation of interrupt handlers and
      unsafe interrupt injection including a fixup of the offending
      PCI/AER error injection mechanism.

      Invoking interrupt handlers from arbitrary contexts, i.e. outside
      of an actual interrupt, can cause inconsistent state on the
      fragile x86 interrupt affinity changing hardware trainwreck.

  Drivers:

    - Second wave of support for the new ARM GICv4.1

    - Multi-instance support for Xilinx and PLIC interrupt controllers

    - CPU-Hotplug support for PLIC

    - The obligatory new driver for X1000 TCU

    - Enhancements, cleanups and fixes all over the place"

* tag 'irq-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
  unicore32: Replace setup_irq() by request_irq()
  sh: Replace setup_irq() by request_irq()
  hexagon: Replace setup_irq() by request_irq()
  c6x: Replace setup_irq() by request_irq()
  alpha: Replace setup_irq() by request_irq()
  irqchip/gic-v4.1: Eagerly vmap vPEs
  irqchip/gic-v4.1: Add VSGI property setup
  irqchip/gic-v4.1: Add VSGI allocation/teardown
  irqchip/gic-v4.1: Move doorbell management to the GICv4 abstraction layer
  irqchip/gic-v4.1: Plumb set_vcpu_affinity SGI callbacks
  irqchip/gic-v4.1: Plumb get/set_irqchip_state SGI callbacks
  irqchip/gic-v4.1: Plumb mask/unmask SGI callbacks
  irqchip/gic-v4.1: Add initial SGI configuration
  irqchip/gic-v4.1: Plumb skeletal VSGI irqchip
  irqchip/stm32: Retrigger both in eoi and unmask callbacks
  irqchip/gic-v3: Move irq_domain_update_bus_token to after checking for NULL domain
  irqchip/xilinx: Do not call irq_set_default_host()
  irqchip/xilinx: Enable generic irq multi handler
  irqchip/xilinx: Fill error code when irq domain registration fails
  irqchip/xilinx: Add support for multiple instances
  ...

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