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linux/drivers/irqchip/Kconfig
Linus Torvalds 63eb28bb14 ARM: 
- Host driver for GICv5, the next generation interrupt controller for
   arm64, including support for interrupt routing, MSIs, interrupt
   translation and wired interrupts.
 
 - Use FEAT_GCIE_LEGACY on GICv5 systems to virtualize GICv3 VMs on
   GICv5 hardware, leveraging the legacy VGIC interface.
 
 - Userspace control of the 'nASSGIcap' GICv3 feature, allowing
   userspace to disable support for SGIs w/o an active state on hardware
   that previously advertised it unconditionally.
 
 - Map supporting endpoints with cacheable memory attributes on systems
   with FEAT_S2FWB and DIC where KVM no longer needs to perform cache
   maintenance on the address range.
 
 - Nested support for FEAT_RAS and FEAT_DoubleFault2, allowing the guest
   hypervisor to inject external aborts into an L2 VM and take traps of
   masked external aborts to the hypervisor.
 
 - Convert more system register sanitization to the config-driven
   implementation.
 
 - Fixes to the visibility of EL2 registers, namely making VGICv3 system
   registers accessible through the VGIC device instead of the ONE_REG
   vCPU ioctls.
 
 - Various cleanups and minor fixes.
 
 LoongArch:
 
 - Add stat information for in-kernel irqchip
 
 - Add tracepoints for CPUCFG and CSR emulation exits
 
 - Enhance in-kernel irqchip emulation
 
 - Various cleanups.
 
 RISC-V:
 
 - Enable ring-based dirty memory tracking
 
 - Improve perf kvm stat to report interrupt events
 
 - Delegate illegal instruction trap to VS-mode
 
 - MMU improvements related to upcoming nested virtualization
 
 s390x
 
 - Fixes
 
 x86:
 
 - Add CONFIG_KVM_IOAPIC for x86 to allow disabling support for I/O APIC,
   PIC, and PIT emulation at compile time.
 
 - Share device posted IRQ code between SVM and VMX and
   harden it against bugs and runtime errors.
 
 - Use vcpu_idx, not vcpu_id, for GA log tag/metadata, to make lookups O(1)
   instead of O(n).
 
 - For MMIO stale data mitigation, track whether or not a vCPU has access to
   (host) MMIO based on whether the page tables have MMIO pfns mapped; using
   VFIO is prone to false negatives
 
 - Rework the MSR interception code so that the SVM and VMX APIs are more or
   less identical.
 
 - Recalculate all MSR intercepts from scratch on MSR filter changes,
   instead of maintaining shadow bitmaps.
 
 - Advertise support for LKGS (Load Kernel GS base), a new instruction
   that's loosely related to FRED, but is supported and enumerated
   independently.
 
 - Fix a user-triggerable WARN that syzkaller found by setting the vCPU
   in INIT_RECEIVED state (aka wait-for-SIPI), and then putting the vCPU
   into VMX Root Mode (post-VMXON).  Trying to detect every possible path
   leading to architecturally forbidden states is hard and even risks
   breaking userspace (if it goes from valid to valid state but passes
   through invalid states), so just wait until KVM_RUN to detect that
   the vCPU state isn't allowed.
 
 - Add KVM_X86_DISABLE_EXITS_APERFMPERF to allow disabling interception of
   APERF/MPERF reads, so that a "properly" configured VM can access
   APERF/MPERF.  This has many caveats (APERF/MPERF cannot be zeroed
   on vCPU creation or saved/restored on suspend and resume, or preserved
   over thread migration let alone VM migration) but can be useful whenever
   you're interested in letting Linux guests see the effective physical CPU
   frequency in /proc/cpuinfo.
 
 - Reject KVM_SET_TSC_KHZ for vm file descriptors if vCPUs have been
   created, as there's no known use case for changing the default
   frequency for other VM types and it goes counter to the very reason
   why the ioctl was added to the vm file descriptor.  And also, there
   would be no way to make it work for confidential VMs with a "secure"
   TSC, so kill two birds with one stone.
 
 - Dynamically allocation the shadow MMU's hashed page list, and defer
   allocating the hashed list until it's actually needed (the TDP MMU
   doesn't use the list).
 
 - Extract many of KVM's helpers for accessing architectural local APIC
   state to common x86 so that they can be shared by guest-side code for
   Secure AVIC.
 
 - Various cleanups and fixes.
 
 x86 (Intel):
 
 - Preserve the host's DEBUGCTL.FREEZE_IN_SMM when running the guest.
   Failure to honor FREEZE_IN_SMM can leak host state into guests.
 
 - Explicitly check vmcs12.GUEST_DEBUGCTL on nested VM-Enter to prevent
   L1 from running L2 with features that KVM doesn't support, e.g. BTF.
 
 x86 (AMD):
 
 - WARN and reject loading kvm-amd.ko instead of panicking the kernel if the
   nested SVM MSRPM offsets tracker can't handle an MSR (which is pretty
   much a static condition and therefore should never happen, but still).
 
 - Fix a variety of flaws and bugs in the AVIC device posted IRQ code.
 
 - Inhibit AVIC if a vCPU's ID is too big (relative to what hardware
   supports) instead of rejecting vCPU creation.
 
 - Extend enable_ipiv module param support to SVM, by simply leaving
   IsRunning clear in the vCPU's physical ID table entry.
 
 - Disable IPI virtualization, via enable_ipiv, if the CPU is affected by
   erratum #1235, to allow (safely) enabling AVIC on such CPUs.
 
 - Request GA Log interrupts if and only if the target vCPU is blocking,
   i.e. only if KVM needs a notification in order to wake the vCPU.
 
 - Intercept SPEC_CTRL on AMD if the MSR shouldn't exist according to the
   vCPU's CPUID model.
 
 - Accept any SNP policy that is accepted by the firmware with respect to
   SMT and single-socket restrictions.  An incompatible policy doesn't put
   the kernel at risk in any way, so there's no reason for KVM to care.
 
 - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM and
   use WBNOINVD instead of WBINVD when possible for SEV cache maintenance.
 
 - When reclaiming memory from an SEV guest, only do cache flushes on CPUs
   that have ever run a vCPU for the guest, i.e. don't flush the caches for
   CPUs that can't possibly have cache lines with dirty, encrypted data.
 
 Generic:
 
 - Rework irqbypass to track/match producers and consumers via an xarray
   instead of a linked list.  Using a linked list leads to O(n^2) insertion
   times, which is hugely problematic for use cases that create large
   numbers of VMs.  Such use cases typically don't actually use irqbypass,
   but eliminating the pointless registration is a future problem to
   solve as it likely requires new uAPI.
 
 - Track irqbypass's "token" as "struct eventfd_ctx *" instead of a "void *",
   to avoid making a simple concept unnecessarily difficult to understand.
 
 - Decouple device posted IRQs from VFIO device assignment, as binding a VM
   to a VFIO group is not a requirement for enabling device posted IRQs.
 
 - Clean up and document/comment the irqfd assignment code.
 
 - Disallow binding multiple irqfds to an eventfd with a priority waiter,
   i.e.  ensure an eventfd is bound to at most one irqfd through the entire
   host, and add a selftest to verify eventfd:irqfd bindings are globally
   unique.
 
 - Add a tracepoint for KVM_SET_MEMORY_ATTRIBUTES to help debug issues
   related to private <=> shared memory conversions.
 
 - Drop guest_memfd's .getattr() implementation as the VFS layer will call
   generic_fillattr() if inode_operations.getattr is NULL.
 
 - Fix issues with dirty ring harvesting where KVM doesn't bound the
   processing of entries in any way, which allows userspace to keep KVM
   in a tight loop indefinitely.
 
 - Kill off kvm_arch_{start,end}_assignment() and x86's associated tracking,
   now that KVM no longer uses assigned_device_count as a heuristic for
   either irqbypass usage or MDS mitigation.
 
 Selftests:
 
 - Fix a comment typo.
 
 - Verify KVM is loaded when getting any KVM module param so that attempting
   to run a selftest without kvm.ko loaded results in a SKIP message about
   KVM not being loaded/enabled (versus some random parameter not existing).
 
 - Skip tests that hit EACCES when attempting to access a file, and rpint
   a "Root required?" help message.  In most cases, the test just needs to
   be run with elevated permissions.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "ARM:

   - Host driver for GICv5, the next generation interrupt controller for
     arm64, including support for interrupt routing, MSIs, interrupt
     translation and wired interrupts

   - Use FEAT_GCIE_LEGACY on GICv5 systems to virtualize GICv3 VMs on
     GICv5 hardware, leveraging the legacy VGIC interface

   - Userspace control of the 'nASSGIcap' GICv3 feature, allowing
     userspace to disable support for SGIs w/o an active state on
     hardware that previously advertised it unconditionally

   - Map supporting endpoints with cacheable memory attributes on
     systems with FEAT_S2FWB and DIC where KVM no longer needs to
     perform cache maintenance on the address range

   - Nested support for FEAT_RAS and FEAT_DoubleFault2, allowing the
     guest hypervisor to inject external aborts into an L2 VM and take
     traps of masked external aborts to the hypervisor

   - Convert more system register sanitization to the config-driven
     implementation

   - Fixes to the visibility of EL2 registers, namely making VGICv3
     system registers accessible through the VGIC device instead of the
     ONE_REG vCPU ioctls

   - Various cleanups and minor fixes

  LoongArch:

   - Add stat information for in-kernel irqchip

   - Add tracepoints for CPUCFG and CSR emulation exits

   - Enhance in-kernel irqchip emulation

   - Various cleanups

  RISC-V:

   - Enable ring-based dirty memory tracking

   - Improve perf kvm stat to report interrupt events

   - Delegate illegal instruction trap to VS-mode

   - MMU improvements related to upcoming nested virtualization

  s390x

   - Fixes

  x86:

   - Add CONFIG_KVM_IOAPIC for x86 to allow disabling support for I/O
     APIC, PIC, and PIT emulation at compile time

   - Share device posted IRQ code between SVM and VMX and harden it
     against bugs and runtime errors

   - Use vcpu_idx, not vcpu_id, for GA log tag/metadata, to make lookups
     O(1) instead of O(n)

   - For MMIO stale data mitigation, track whether or not a vCPU has
     access to (host) MMIO based on whether the page tables have MMIO
     pfns mapped; using VFIO is prone to false negatives

   - Rework the MSR interception code so that the SVM and VMX APIs are
     more or less identical

   - Recalculate all MSR intercepts from scratch on MSR filter changes,
     instead of maintaining shadow bitmaps

   - Advertise support for LKGS (Load Kernel GS base), a new instruction
     that's loosely related to FRED, but is supported and enumerated
     independently

   - Fix a user-triggerable WARN that syzkaller found by setting the
     vCPU in INIT_RECEIVED state (aka wait-for-SIPI), and then putting
     the vCPU into VMX Root Mode (post-VMXON). Trying to detect every
     possible path leading to architecturally forbidden states is hard
     and even risks breaking userspace (if it goes from valid to valid
     state but passes through invalid states), so just wait until
     KVM_RUN to detect that the vCPU state isn't allowed

   - Add KVM_X86_DISABLE_EXITS_APERFMPERF to allow disabling
     interception of APERF/MPERF reads, so that a "properly" configured
     VM can access APERF/MPERF. This has many caveats (APERF/MPERF
     cannot be zeroed on vCPU creation or saved/restored on suspend and
     resume, or preserved over thread migration let alone VM migration)
     but can be useful whenever you're interested in letting Linux
     guests see the effective physical CPU frequency in /proc/cpuinfo

   - Reject KVM_SET_TSC_KHZ for vm file descriptors if vCPUs have been
     created, as there's no known use case for changing the default
     frequency for other VM types and it goes counter to the very reason
     why the ioctl was added to the vm file descriptor. And also, there
     would be no way to make it work for confidential VMs with a
     "secure" TSC, so kill two birds with one stone

   - Dynamically allocation the shadow MMU's hashed page list, and defer
     allocating the hashed list until it's actually needed (the TDP MMU
     doesn't use the list)

   - Extract many of KVM's helpers for accessing architectural local
     APIC state to common x86 so that they can be shared by guest-side
     code for Secure AVIC

   - Various cleanups and fixes

  x86 (Intel):

   - Preserve the host's DEBUGCTL.FREEZE_IN_SMM when running the guest.
     Failure to honor FREEZE_IN_SMM can leak host state into guests

   - Explicitly check vmcs12.GUEST_DEBUGCTL on nested VM-Enter to
     prevent L1 from running L2 with features that KVM doesn't support,
     e.g. BTF

  x86 (AMD):

   - WARN and reject loading kvm-amd.ko instead of panicking the kernel
     if the nested SVM MSRPM offsets tracker can't handle an MSR (which
     is pretty much a static condition and therefore should never
     happen, but still)

   - Fix a variety of flaws and bugs in the AVIC device posted IRQ code

   - Inhibit AVIC if a vCPU's ID is too big (relative to what hardware
     supports) instead of rejecting vCPU creation

   - Extend enable_ipiv module param support to SVM, by simply leaving
     IsRunning clear in the vCPU's physical ID table entry

   - Disable IPI virtualization, via enable_ipiv, if the CPU is affected
     by erratum #1235, to allow (safely) enabling AVIC on such CPUs

   - Request GA Log interrupts if and only if the target vCPU is
     blocking, i.e. only if KVM needs a notification in order to wake
     the vCPU

   - Intercept SPEC_CTRL on AMD if the MSR shouldn't exist according to
     the vCPU's CPUID model

   - Accept any SNP policy that is accepted by the firmware with respect
     to SMT and single-socket restrictions. An incompatible policy
     doesn't put the kernel at risk in any way, so there's no reason for
     KVM to care

   - Drop a superfluous WBINVD (on all CPUs!) when destroying a VM and
     use WBNOINVD instead of WBINVD when possible for SEV cache
     maintenance

   - When reclaiming memory from an SEV guest, only do cache flushes on
     CPUs that have ever run a vCPU for the guest, i.e. don't flush the
     caches for CPUs that can't possibly have cache lines with dirty,
     encrypted data

  Generic:

   - Rework irqbypass to track/match producers and consumers via an
     xarray instead of a linked list. Using a linked list leads to
     O(n^2) insertion times, which is hugely problematic for use cases
     that create large numbers of VMs. Such use cases typically don't
     actually use irqbypass, but eliminating the pointless registration
     is a future problem to solve as it likely requires new uAPI

   - Track irqbypass's "token" as "struct eventfd_ctx *" instead of a
     "void *", to avoid making a simple concept unnecessarily difficult
     to understand

   - Decouple device posted IRQs from VFIO device assignment, as binding
     a VM to a VFIO group is not a requirement for enabling device
     posted IRQs

   - Clean up and document/comment the irqfd assignment code

   - Disallow binding multiple irqfds to an eventfd with a priority
     waiter, i.e. ensure an eventfd is bound to at most one irqfd
     through the entire host, and add a selftest to verify eventfd:irqfd
     bindings are globally unique

   - Add a tracepoint for KVM_SET_MEMORY_ATTRIBUTES to help debug issues
     related to private <=> shared memory conversions

   - Drop guest_memfd's .getattr() implementation as the VFS layer will
     call generic_fillattr() if inode_operations.getattr is NULL

   - Fix issues with dirty ring harvesting where KVM doesn't bound the
     processing of entries in any way, which allows userspace to keep
     KVM in a tight loop indefinitely

   - Kill off kvm_arch_{start,end}_assignment() and x86's associated
     tracking, now that KVM no longer uses assigned_device_count as a
     heuristic for either irqbypass usage or MDS mitigation

  Selftests:

   - Fix a comment typo

   - Verify KVM is loaded when getting any KVM module param so that
     attempting to run a selftest without kvm.ko loaded results in a
     SKIP message about KVM not being loaded/enabled (versus some random
     parameter not existing)

   - Skip tests that hit EACCES when attempting to access a file, and
     print a "Root required?" help message. In most cases, the test just
     needs to be run with elevated permissions"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (340 commits)
  Documentation: KVM: Use unordered list for pre-init VGIC registers
  RISC-V: KVM: Avoid re-acquiring memslot in kvm_riscv_gstage_map()
  RISC-V: KVM: Use find_vma_intersection() to search for intersecting VMAs
  RISC-V: perf/kvm: Add reporting of interrupt events
  RISC-V: KVM: Enable ring-based dirty memory tracking
  RISC-V: KVM: Fix inclusion of Smnpm in the guest ISA bitmap
  RISC-V: KVM: Delegate illegal instruction fault to VS mode
  RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs
  RISC-V: KVM: Factor-out g-stage page table management
  RISC-V: KVM: Add vmid field to struct kvm_riscv_hfence
  RISC-V: KVM: Introduce struct kvm_gstage_mapping
  RISC-V: KVM: Factor-out MMU related declarations into separate headers
  RISC-V: KVM: Use ncsr_xyz() in kvm_riscv_vcpu_trap_redirect()
  RISC-V: KVM: Implement kvm_arch_flush_remote_tlbs_range()
  RISC-V: KVM: Don't flush TLB when PTE is unchanged
  RISC-V: KVM: Replace KVM_REQ_HFENCE_GVMA_VMID_ALL with KVM_REQ_TLB_FLUSH
  RISC-V: KVM: Rename and move kvm_riscv_local_tlb_sanitize()
  RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init()
  RISC-V: KVM: Check kvm_riscv_vcpu_alloc_vector_context() return value
  KVM: arm64: selftests: Add FEAT_RAS EL2 registers to get-reg-list
  ...
2025-07-30 17:14:01 -07:00

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# SPDX-License-Identifier: GPL-2.0-only
menu "IRQ chip support"
config IRQCHIP
def_bool y
depends on (OF_IRQ || ACPI_GENERIC_GSI)
config ARM_GIC
bool
depends on OF
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config ARM_GIC_PM
bool
depends on PM
select ARM_GIC
config ARM_GIC_MAX_NR
int
depends on ARM_GIC
default 2 if ARCH_REALVIEW
default 1
config ARM_GIC_V2M
bool
depends on PCI
select ARM_GIC
select IRQ_MSI_LIB
select PCI_MSI
select IRQ_MSI_IOMMU
config GIC_NON_BANKED
bool
config ARM_GIC_V3
bool
select IRQ_DOMAIN_HIERARCHY
select PARTITION_PERCPU
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
select HAVE_ARM_SMCCC_DISCOVERY
select IRQ_MSI_IOMMU
config ARM_GIC_ITS_PARENT
bool
config ARM_GIC_V3_ITS
bool
select GENERIC_MSI_IRQ
select IRQ_MSI_LIB
select ARM_GIC_ITS_PARENT
default ARM_GIC_V3
select IRQ_MSI_IOMMU
config ARM_GIC_V3_ITS_FSL_MC
bool
depends on ARM_GIC_V3_ITS
depends on FSL_MC_BUS
default ARM_GIC_V3_ITS
config ARM_GIC_V5
bool
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
select GENERIC_MSI_IRQ
select IRQ_MSI_LIB
select ARM_GIC_ITS_PARENT
config ARM_NVIC
bool
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_CHIP
config ARM_VIC
bool
select IRQ_DOMAIN
config ARM_VIC_NR
int
default 4 if ARCH_S5PV210
default 2
depends on ARM_VIC
help
The maximum number of VICs available in the system, for
power management.
config IRQ_MSI_LIB
bool
select GENERIC_MSI_IRQ
config ARMADA_370_XP_IRQ
bool
select GENERIC_IRQ_CHIP
select PCI_MSI if PCI
select IRQ_MSI_LIB if PCI
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config ALPINE_MSI
bool
depends on PCI
select PCI_MSI
select IRQ_MSI_LIB
select GENERIC_IRQ_CHIP
config AL_FIC
bool "Amazon's Annapurna Labs Fabric Interrupt Controller"
depends on OF
depends on HAS_IOMEM
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Support Amazon's Annapurna Labs Fabric Interrupt Controller.
config ATMEL_AIC_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select SPARSE_IRQ
config ATMEL_AIC5_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select SPARSE_IRQ
config I8259
bool
select IRQ_DOMAIN
config BCM2712_MIP
tristate "Broadcom BCM2712 MSI-X Interrupt Peripheral support"
depends on ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST
default m if ARCH_BRCMSTB || ARCH_BCM2835
depends on ARM_GIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN_HIERARCHY
select GENERIC_MSI_IRQ
select IRQ_MSI_LIB
help
Enable support for the Broadcom BCM2712 MSI-X target peripheral
(MIP) needed by brcmstb PCIe to handle MSI-X interrupts on
Raspberry Pi 5.
If unsure say n.
config BCM6345_L1_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config BCM7038_L1_IRQ
tristate "Broadcom STB 7038-style L1/L2 interrupt controller driver"
depends on ARCH_BRCMSTB || BMIPS_GENERIC
default ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config BCM7120_L2_IRQ
tristate "Broadcom STB 7120-style L2 interrupt controller driver"
depends on ARCH_BRCMSTB || BMIPS_GENERIC
default ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config BRCMSTB_L2_IRQ
tristate "Broadcom STB generic L2 interrupt controller driver"
depends on ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
default ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config DAVINCI_CP_INTC
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config DW_APB_ICTL
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN_HIERARCHY
config ECONET_EN751221_INTC
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config FARADAY_FTINTC010
bool
select IRQ_DOMAIN
select SPARSE_IRQ
config HISILICON_IRQ_MBIGEN
bool
select ARM_GIC_V3
select ARM_GIC_V3_ITS
config IMGPDC_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config IXP4XX_IRQ
bool
select IRQ_DOMAIN
select SPARSE_IRQ
config LAN966X_OIC
tristate "Microchip LAN966x OIC Support"
depends on MCHP_LAN966X_PCI || COMPILE_TEST
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Enable support for the LAN966x Outbound Interrupt Controller.
This controller is present on the Microchip LAN966x PCI device and
maps the internal interrupts sources to PCIe interrupt.
To compile this driver as a module, choose M here: the module
will be called irq-lan966x-oic.
config MADERA_IRQ
tristate
config IRQ_MIPS_CPU
bool
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_IPI if SMP && SYS_SUPPORTS_MULTITHREADING
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config CLPS711X_IRQCHIP
bool
depends on ARCH_CLPS711X
select IRQ_DOMAIN
select SPARSE_IRQ
default y
config OMPIC
bool
config OR1K_PIC
bool
select IRQ_DOMAIN
config OMAP_IRQCHIP
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config ORION_IRQCHIP
bool
select IRQ_DOMAIN
config PIC32_EVIC
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config JCORE_AIC
bool "J-Core integrated AIC" if COMPILE_TEST
depends on OF
select IRQ_DOMAIN
help
Support for the J-Core integrated AIC.
config RDA_INTC
bool
select IRQ_DOMAIN
config RENESAS_INTC_IRQPIN
bool "Renesas INTC External IRQ Pin Support" if COMPILE_TEST
select IRQ_DOMAIN
help
Enable support for the Renesas Interrupt Controller for external
interrupt pins, as found on SH/R-Mobile and R-Car Gen1 SoCs.
config RENESAS_IRQC
bool "Renesas R-Mobile APE6, R-Car Gen{2,3} and RZ/G{1,2} IRQC support" if COMPILE_TEST
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Enable support for the Renesas Interrupt Controller for external
devices, as found on R-Mobile APE6, R-Car Gen{2,3} and RZ/G{1,2} SoCs.
config RENESAS_RZA1_IRQC
bool "Renesas RZ/A1 IRQC support" if COMPILE_TEST
select IRQ_DOMAIN_HIERARCHY
help
Enable support for the Renesas RZ/A1 Interrupt Controller, to use up
to 8 external interrupts with configurable sense select.
config RENESAS_RZG2L_IRQC
bool "Renesas RZ/G2L (and alike SoC) IRQC support" if COMPILE_TEST
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN_HIERARCHY
help
Enable support for the Renesas RZ/G2L (and alike SoC) Interrupt Controller
for external devices.
config RENESAS_RZV2H_ICU
bool "Renesas RZ/V2H(P) ICU support" if COMPILE_TEST
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN_HIERARCHY
help
Enable support for the Renesas RZ/V2H(P) Interrupt Control Unit (ICU)
config SL28CPLD_INTC
bool "Kontron sl28cpld IRQ controller"
depends on MFD_SL28CPLD=y || COMPILE_TEST
select REGMAP_IRQ
help
Interrupt controller driver for the board management controller
found on the Kontron sl28 CPLD.
config ST_IRQCHIP
bool
select REGMAP
select MFD_SYSCON
help
Enables SysCfg Controlled IRQs on STi based platforms.
config SUN4I_INTC
bool
config SUN6I_R_INTC
bool
select IRQ_DOMAIN_HIERARCHY
select IRQ_FASTEOI_HIERARCHY_HANDLERS
config SUNXI_NMI_INTC
bool
select GENERIC_IRQ_CHIP
config TB10X_IRQC
bool
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
config TS4800_IRQ
tristate "TS-4800 IRQ controller"
select IRQ_DOMAIN
depends on HAS_IOMEM
depends on SOC_IMX51 || COMPILE_TEST
help
Support for the TS-4800 FPGA IRQ controller
config VERSATILE_FPGA_IRQ
bool
select IRQ_DOMAIN
config VERSATILE_FPGA_IRQ_NR
int
default 4
depends on VERSATILE_FPGA_IRQ
config XTENSA_MX
bool
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config XILINX_INTC
bool "Xilinx Interrupt Controller IP"
depends on OF_ADDRESS
select IRQ_DOMAIN
help
Support for the Xilinx Interrupt Controller IP core.
This is used as a primary controller with MicroBlaze and can also
be used as a secondary chained controller on other platforms.
config IRQ_CROSSBAR
bool
help
Support for a CROSSBAR ip that precedes the main interrupt controller.
The primary irqchip invokes the crossbar's callback which inturn allocates
a free irq and configures the IP. Thus the peripheral interrupts are
routed to one of the free irqchip interrupt lines.
config KEYSTONE_IRQ
tristate "Keystone 2 IRQ controller IP"
depends on ARCH_KEYSTONE
help
Support for Texas Instruments Keystone 2 IRQ controller IP which
is part of the Keystone 2 IPC mechanism
config MIPS_GIC
bool
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
select GENERIC_IRQ_IPI if SMP
select IRQ_DOMAIN_HIERARCHY
select MIPS_CM
config INGENIC_IRQ
bool
depends on MACH_INGENIC
default y
config INGENIC_TCU_IRQ
bool "Ingenic JZ47xx TCU interrupt controller"
default MACH_INGENIC
depends on MIPS || COMPILE_TEST
select MFD_SYSCON
select GENERIC_IRQ_CHIP
help
Support for interrupts in the Timer/Counter Unit (TCU) of the Ingenic
JZ47xx SoCs.
If unsure, say N.
config IMX_GPCV2
bool
select IRQ_DOMAIN
help
Enables the wakeup IRQs for IMX platforms with GPCv2 block
config IRQ_MXS
def_bool y if MACH_ASM9260 || ARCH_MXS
select IRQ_DOMAIN
select STMP_DEVICE
config MSCC_OCELOT_IRQ
bool
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
config MVEBU_GICP
select IRQ_MSI_LIB
bool
config MVEBU_ICU
bool
config MVEBU_ODMI
bool
select IRQ_MSI_LIB
select GENERIC_MSI_IRQ
config MVEBU_PIC
bool
config MVEBU_SEI
bool
config LS_EXTIRQ
def_bool y if SOC_LS1021A || ARCH_LAYERSCAPE
select MFD_SYSCON
config LS_SCFG_MSI
def_bool y if SOC_LS1021A || ARCH_LAYERSCAPE
select IRQ_MSI_IOMMU
depends on PCI_MSI
select IRQ_MSI_LIB
config PARTITION_PERCPU
bool
config STM32MP_EXTI
tristate "STM32MP extended interrupts and event controller"
depends on (ARCH_STM32 && !ARM_SINGLE_ARMV7M) || COMPILE_TEST
default ARCH_STM32 && !ARM_SINGLE_ARMV7M
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_CHIP
help
Support STM32MP EXTI (extended interrupts and event) controller.
config STM32_EXTI
bool
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
config QCOM_IRQ_COMBINER
bool "QCOM IRQ combiner support"
depends on ARCH_QCOM && ACPI
select IRQ_DOMAIN_HIERARCHY
help
Say yes here to add support for the IRQ combiner devices embedded
in Qualcomm Technologies chips.
config IRQ_UNIPHIER_AIDET
bool "UniPhier AIDET support" if COMPILE_TEST
depends on ARCH_UNIPHIER || COMPILE_TEST
default ARCH_UNIPHIER
select IRQ_DOMAIN_HIERARCHY
help
Support for the UniPhier AIDET (ARM Interrupt Detector).
config MESON_IRQ_GPIO
tristate "Meson GPIO Interrupt Multiplexer"
depends on ARCH_MESON || COMPILE_TEST
default ARCH_MESON
select IRQ_DOMAIN_HIERARCHY
help
Support Meson SoC Family GPIO Interrupt Multiplexer
config GOLDFISH_PIC
bool "Goldfish programmable interrupt controller"
depends on MIPS && (GOLDFISH || COMPILE_TEST)
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
help
Say yes here to enable Goldfish interrupt controller driver used
for Goldfish based virtual platforms.
config QCOM_PDC
tristate "QCOM PDC"
depends on ARCH_QCOM
select IRQ_DOMAIN_HIERARCHY
help
Power Domain Controller driver to manage and configure wakeup
IRQs for Qualcomm Technologies Inc (QTI) mobile chips.
config QCOM_MPM
tristate "QCOM MPM"
depends on ARCH_QCOM
depends on MAILBOX
select IRQ_DOMAIN_HIERARCHY
help
MSM Power Manager driver to manage and configure wakeup
IRQs for Qualcomm Technologies Inc (QTI) mobile chips.
config CSKY_MPINTC
bool
depends on CSKY
help
Say yes here to enable C-SKY SMP interrupt controller driver used
for C-SKY SMP system.
In fact it's not mmio map in hardware and it uses ld/st to visit the
controller's register inside CPU.
config CSKY_APB_INTC
bool "C-SKY APB Interrupt Controller"
depends on CSKY
help
Say yes here to enable C-SKY APB interrupt controller driver used
by C-SKY single core SOC system. It uses mmio map apb-bus to visit
the controller's register.
config IMX_IRQSTEER
bool "i.MX IRQSTEER support"
depends on ARCH_MXC || COMPILE_TEST
default ARCH_MXC
select IRQ_DOMAIN
help
Support for the i.MX IRQSTEER interrupt multiplexer/remapper.
config IMX_INTMUX
bool "i.MX INTMUX support" if COMPILE_TEST
default y if ARCH_MXC
select IRQ_DOMAIN
help
Support for the i.MX INTMUX interrupt multiplexer.
config IMX_MU_MSI
tristate "i.MX MU used as MSI controller"
depends on OF && HAS_IOMEM
depends on ARCH_MXC || COMPILE_TEST
default m if ARCH_MXC
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
select GENERIC_MSI_IRQ
select IRQ_MSI_LIB
help
Provide a driver for the i.MX Messaging Unit block used as a
CPU-to-CPU MSI controller. This requires a specially crafted DT
to make use of this driver.
If unsure, say N
config LS1X_IRQ
bool "Loongson-1 Interrupt Controller"
depends on MACH_LOONGSON32
default y
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
help
Support for the Loongson-1 platform Interrupt Controller.
config TI_SCI_INTR_IRQCHIP
tristate "TI SCI INTR Interrupt Controller"
depends on TI_SCI_PROTOCOL
depends on ARCH_K3 || COMPILE_TEST
select IRQ_DOMAIN_HIERARCHY
help
This enables the irqchip driver support for K3 Interrupt router
over TI System Control Interface available on some new TI's SoCs.
If you wish to use interrupt router irq resources managed by the
TI System Controller, say Y here. Otherwise, say N.
config TI_SCI_INTA_IRQCHIP
tristate "TI SCI INTA Interrupt Controller"
depends on TI_SCI_PROTOCOL
depends on ARCH_K3 || (COMPILE_TEST && ARM64)
select IRQ_DOMAIN_HIERARCHY
select TI_SCI_INTA_MSI_DOMAIN
help
This enables the irqchip driver support for K3 Interrupt aggregator
over TI System Control Interface available on some new TI's SoCs.
If you wish to use interrupt aggregator irq resources managed by the
TI System Controller, say Y here. Otherwise, say N.
config TI_PRUSS_INTC
tristate
depends on TI_PRUSS
default TI_PRUSS
select IRQ_DOMAIN
help
This enables support for the PRU-ICSS Local Interrupt Controller
present within a PRU-ICSS subsystem present on various TI SoCs.
The PRUSS INTC enables various interrupts to be routed to multiple
different processors within the SoC.
config RISCV_INTC
bool
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
config RISCV_APLIC
bool
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
config RISCV_APLIC_MSI
bool
depends on RISCV_APLIC
select GENERIC_MSI_IRQ
default RISCV_APLIC
config RISCV_IMSIC
bool
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_MATRIX_ALLOCATOR
select GENERIC_MSI_IRQ
select IRQ_MSI_LIB
config SIFIVE_PLIC
bool
depends on RISCV
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
config STARFIVE_JH8100_INTC
bool "StarFive JH8100 External Interrupt Controller"
depends on ARCH_STARFIVE || COMPILE_TEST
default ARCH_STARFIVE
select IRQ_DOMAIN_HIERARCHY
help
This enables support for the INTC chip found in StarFive JH8100
SoC.
If you don't know what to do here, say Y.
config ACLINT_SSWI
bool "RISC-V ACLINT S-mode IPI Interrupt Controller"
depends on RISCV
depends on SMP
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_IPI_MUX
help
This enables support for variants of the RISC-V ACLINT-SSWI device.
Supported variants are:
- T-HEAD, with compatible "thead,c900-aclint-sswi"
- MIPS P8700, with compatible "mips,p8700-aclint-sswi"
If you don't know what to do here, say Y.
# Backwards compatibility so oldconfig does not drop it.
config THEAD_C900_ACLINT_SSWI
bool
select ACLINT_SSWI
config EXYNOS_IRQ_COMBINER
bool "Samsung Exynos IRQ combiner support" if COMPILE_TEST
depends on (ARCH_EXYNOS && ARM) || COMPILE_TEST
help
Say yes here to add support for the IRQ combiner devices embedded
in Samsung Exynos chips.
config IRQ_LOONGARCH_CPU
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
select LOONGSON_HTVEC
select LOONGSON_LIOINTC
select LOONGSON_EIOINTC
select LOONGSON_PCH_PIC
select LOONGSON_PCH_MSI
select LOONGSON_PCH_LPC
help
Support for the LoongArch CPU Interrupt Controller. For details of
irq chip hierarchy on LoongArch platforms please read the document
Documentation/arch/loongarch/irq-chip-model.rst.
config LOONGSON_LIOINTC
bool "Loongson Local I/O Interrupt Controller"
depends on MACH_LOONGSON64
default y
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
help
Support for the Loongson Local I/O Interrupt Controller.
config LOONGSON_EIOINTC
bool "Loongson Extend I/O Interrupt Controller"
depends on LOONGARCH
depends on MACH_LOONGSON64
default MACH_LOONGSON64
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_CHIP
help
Support for the Loongson3 Extend I/O Interrupt Vector Controller.
config LOONGSON_HTPIC
bool "Loongson3 HyperTransport PIC Controller"
depends on MACH_LOONGSON64 && MIPS
default y
select IRQ_DOMAIN
select GENERIC_IRQ_CHIP
help
Support for the Loongson-3 HyperTransport PIC Controller.
config LOONGSON_HTVEC
bool "Loongson HyperTransport Interrupt Vector Controller"
depends on MACH_LOONGSON64
default MACH_LOONGSON64
select IRQ_DOMAIN_HIERARCHY
help
Support for the Loongson HyperTransport Interrupt Vector Controller.
config LOONGSON_PCH_PIC
bool "Loongson PCH PIC Controller"
depends on MACH_LOONGSON64
default MACH_LOONGSON64
select IRQ_DOMAIN_HIERARCHY
select IRQ_FASTEOI_HIERARCHY_HANDLERS
help
Support for the Loongson PCH PIC Controller.
config LOONGSON_PCH_MSI
bool "Loongson PCH MSI Controller"
depends on MACH_LOONGSON64
depends on PCI
default MACH_LOONGSON64
select IRQ_DOMAIN_HIERARCHY
select IRQ_MSI_LIB
select PCI_MSI
help
Support for the Loongson PCH MSI Controller.
config LOONGSON_PCH_LPC
bool "Loongson PCH LPC Controller"
depends on LOONGARCH
depends on MACH_LOONGSON64
default MACH_LOONGSON64
select IRQ_DOMAIN_HIERARCHY
help
Support for the Loongson PCH LPC Controller.
config MST_IRQ
bool "MStar Interrupt Controller"
depends on ARCH_MEDIATEK || ARCH_MSTARV7 || COMPILE_TEST
default ARCH_MEDIATEK
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
help
Support MStar Interrupt Controller.
config WPCM450_AIC
bool "Nuvoton WPCM450 Advanced Interrupt Controller"
depends on ARCH_WPCM450
help
Support for the interrupt controller in the Nuvoton WPCM450 BMC SoC.
config IRQ_IDT3243X
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config APPLE_AIC
bool "Apple Interrupt Controller (AIC)"
depends on ARM64
depends on ARCH_APPLE || COMPILE_TEST
select GENERIC_IRQ_IPI_MUX
help
Support for the Apple Interrupt Controller found on Apple Silicon SoCs,
such as the M1.
config MCHP_EIC
bool "Microchip External Interrupt Controller"
depends on ARCH_AT91 || COMPILE_TEST
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
help
Support for Microchip External Interrupt Controller.
config SOPHGO_SG2042_MSI
bool "Sophgo SG2042 MSI Controller"
depends on ARCH_SOPHGO || COMPILE_TEST
depends on PCI
select IRQ_DOMAIN_HIERARCHY
select IRQ_MSI_LIB
select PCI_MSI
help
Support for the Sophgo SG2042 MSI Controller.
This on-chip interrupt controller enables MSI sources to be
routed to the primary PLIC controller on SoC.
config SUNPLUS_SP7021_INTC
bool "Sunplus SP7021 interrupt controller" if COMPILE_TEST
default SOC_SP7021
help
Support for the Sunplus SP7021 Interrupt Controller IP core.
SP7021 SoC has 2 Chips: C-Chip & P-Chip. This is used as a
chained controller, routing all interrupt source in P-Chip to
the primary controller on C-Chip.
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