linux-stable/drivers/irqchip/Kconfig
Linus Torvalds ac43507589 This tag contains the Linux port for C-SKY(csky) based on linux-4.19
Release, which has been through 10 rounds of review on mailing list.
 
 We almost got the Acked-by/Reviewed-by of all patches except "Process
 management and Signal", but all've been tested.
 
 Here is the LTP-20180118 test report:
 -----------------------------------------------
 Total Tests: 1298
 Total Skipped Tests: 281
 Total Failures: 10
 Kernel Version: 4.19.0+
 Machine Architecture: csky
 Hostname: buildroot
 -----------------------------------------------
 
 This patchset adds architecture support to Linux for C-SKY's 32-bit embedded
 
 There are two ABI versions with several CPU cores in this patchset:
   ABIv1: 610 (16-bit instruction, 32-bit data path, VIPT Cache ...)
   ABIv2: 807 810 860 (16/32-bit variable length instruction, PIPT Cache,
 	 SMP ...)
 
 More information: http://en.c-sky.com
 The development repo: https://github.com/c-sky/csky-linux
 ABI Documentation: https://github.com/c-sky/csky-doc
 
 Here is the pre-built cross compiler for fast test from our CI:
 https://gitlab.com/c-sky/buildroot/-/jobs/101608095/artifacts/file/output/images/csky_toolchain_qemu_csky_ck807f_4.18_glibc_defconfig_482b221e52908be1c9b2ccb444255e1562bb7025.tar.xz
 
 We use buildroot as our CI-test enviornment. "LTP, Lmbench ..."
 will be tested for every commit. See here for more details:
 https://gitlab.com/c-sky/buildroot/pipelines
 
 We'll continouslly improve csky subsystem in future.
 
 Changes in v10:
  - Remove duplicated headers in asm/Kbuild and uapi/asm/Kbuild.
  - Change to (__NR_arch_specific_syscall + 1) in unistd.h.
  - Drop dword access for get_user_size patch.
  - Involve the interrupt controller drivers after got Reviewed-by.
 
 Changes in v9:
  - Remove unused code in smp.c and use per_cpu for ipi_data.
  - Fixup r15 register access in abiv1/alignment.c.
  - Improve the changelog comment in commit-msg.
 
 Changes in v8:
  - Pass make allmodconfig.
  - Implement abiv1 get_user_dword().
  - Remove set_irq_mapping() used by driver in smp.c.
 
 Changes in v7:
  - Use checkpatch.pl to check all patches and fixup as possible.
  - Remove github.com/c-sky print in bootup.
  - Give a return in DMA_ATTR_NON_CONSISTENT in csky_dma_alloc_atomic().
  - Remove the NSIGXXX in fpu.c and use force_sig_fault() in fpu.c.
  - Remove irq.h and add it in asm/Kbuild.
  - Use byteswap helpers in abiv1/bswapXi.c.
  - Fixup arch_sync_dma() only with one page problem.
 
 Changes in v6:
  - use asm-generic/bitops/atomic.h for all in asm/bitops.h
  - fix flush_cache_range and tlb_start_vma
  - fix compile error with include linux/bug.h in cmpxchg.h
  - improve the comment
 
 Changes in v5:
  - remove redundant smp_mb operations in spinlock.h
  - add commit message for dt-bindings docs
  - add CPUHP_AP_CSKY_TIMER_STARTING in hotplug.h for csky_mptimer
  - add COMPILE_TEST for timer-gx6605s Kconfig
  - seperate csky two interrupt controllers with 2 patches
  - add MAINTAINERS patch for csky
  - move IPI_IRQ into csky_mptimer, fixup irq_mapping problem
  - coding convension
 
 Changes in v4:
  - cleanup defconfig
  - use ksys_ in syscall.c
  - remove wrong comment in vdso.c
  - Use GENERIC_IRQ_MULTI_HANDLER
  - optimize the memset.c
  - fixup dts warnings
  - remove big-endian in byteorder.h
 
 Changes in v3:
 dc560f1 csky: change to EM_CSKY 252 for elf.h
 2ac3ddf csky: remove gx6605s.dts
 af00b8c csky: add defconfig and qemu.dts
 6c87efb csky: remove the deprecate name.
 f6dda39 csky: add dt-bindings doc.
 d9f02a8 csky: remove KERNEL_VERSION in upstream branch
 7bd663c csky: Use kernel/dma/noncoherent.c
 1544c09 csky: bugfix emmc hang up LINS-976
 e963271 csky: cleanup include/asm/Kbuild
 cd267ba csky: remove CSKY_DEBUG_INFO
 78950da csky: remove dcache invalid.
 13fe51d csky: remove csum_ipv6_magic(), use generic one.
 a7372db csky: bugfix CK810 access twice error.
 1bb7c69 csky: bugfix add gcc asm memory for barrier.
 5ea3257 csky: add -msoft-float instead of -mfloat-abi=soft.
 38b037d csky: bugfix losing cache flush range.
 ab5e8c4 csky: Add ticket-spinlock and qrwlock support.
 c9aaec5 csky: rename cskyksyms.c to libgcc_ksyms.c
 28c5e48 csky: avoid the MB on failure: trylock
 f929c97 csky: bugfix idly4 may cause exception.
 09dc496 csky: Use GENERIC_ASHLDI3/ASHRDI3 etc
 6ecc99d csky: optimize smp boot code.
 16f50df csky: asm/bug.h simple implement.
 0ba532a csky: csky asm/atomic.h added.
 df66947 csky: asm/compat.h added
 275a06f csky: String operations optimization
 4c021dd csky: ck860 SMP memory barrier optimize
 fc39c66 csky: Add wait/doze/stop
 d005144 csky: add GENERIC_ALLOCATOR
 4a10074 csky: bugfix cma failed for highmem.
 9f2ca70 csky: CMA supported :)
 53791f4 csky: optimize csky_dma_alloc_nonatomic
 974676e csky: optimize the cpuinfo printf.
 2538669 csky: bugfix make headers_install error.
 1158d0c csky: prevent hard-float and vdsp instructions.
 dc3c856 csky: increase Normal Memory to 1GB
 6ee5932 csky: bugfix qemu mmu couldn't support 0xffffe000
 1d7dfb8 csky: csky_dma_alloc_atomic added.
 caf6610 csky: restruct the fixmap memory layout.
 5a17eaa csky: use -Wa,-mcpu=ckxxxfv to the as.
 4d51829 csky: use Kconfig.hz.
 f3f88fa csky: BUGFIX add -mcpu=ck860f support
 6192fd1 csky: support ck860 fpu.
 7aa5e01 csky: BUGFIX add smp_mb before ldex.
 15758e2 csky: BUGFIX tlbi couldn't handle ASID in another CPU core.
 d69640d csky: enable tlbi.vas to flush one tlb entry
 
 Changes in v2:
 a29bfc8 csky: add pre_mmu_init, move misc mmu setup to mm/init.c
 4eab702 csky: no need kmap for !VM_EXEC.
 6770eec csky: Use TEE as the name of CPU Trusted Execution Enviornment.
 a56c8c7 csky: update the cache flush api.
 1a48a95 csky: add C-SKY Trust Zone.
 b7a0a44 csky: use CONFIG_RAM_BASE as the same in memory of dts.
 15adf81 csky: remove unused code.
 35c0d97 csky: bugfix lost a cacheline flush when start isn't cacheline-aligned.
 4e82c8d csky: use tlbi.alls for ck860 smp temporary.
 ae7149e csky: bugfix use kmap_atomic() to prevent no mapped addr.
 5538795 csky: bugfix user access in kernel space.
 a7aa591 csky: add 16bit user space bkpt.
 0de70ec csky: add sync.is for cmpxchg in SMP.
 c5c08a1 csky: seperate sync.is and sync for SMP and Non-SMP.
 dbbf4dc csky: use sync.is for ck860 mb().
 f33f8da csky: rewrite the alignment implement.
 68152c7 csky: bugfix alignment pt_regs error.
 d618d43 csky: support set_affinity for irq balance in SMP
 ebf86c9 csky: bugfix compile error without CONFIG_SMP.
 8537eea csky: remove debug code.
 4ebc051 csky: bugfix compile error with linux-4.9.56
 75a938e csky: C-SKY SMP supported.
 0eebc07 csky: use internal function for map_sg.
 3d29751 csky: bugfix can't support highmem
 b545d2a csky: bugfix r26 is the link reg for jsri_to_jsr.
 9e3313a csky: bugfix sync tls for abiv1 in ptrace.
 587a0d2 csky: use __NR_rt_sigreturn in asm-generic.
 f562b46 csky: bugfix gpr_set & fpr_set
 f57266f csky: bugfix fpu_fpe_helper excute mtcr mfcr.
 c676669 csky: bugfix ave is default enable on reset.
 d40d34d csky: remove unused sc_mask in sigcontext.h.
 274b7a2 csky: redesign the signal's api
 7501771 csky: bugfix forget restore usp.
 923e2ca csky: re-struct the pt_regs for regset.
 2a1e499 csky: fixup config.
 ada81ec csky: bugfix abiv1 compile error.
 e34acb9 csky: bugfix abiv1 couldn't support -mno-stack-size.
 ec53560 csky: change irq map, reserve soft_irq&private_irq space.
 c7576f7 csky: bugfix modpost warning with -mno-stack-size
 c8ff9d4 csky: support csky mp timer alpha version.
 deabaaf csky: update .gitignore.
 574815c csky: bugfix compile error with abiv1 in 4.15
 0b426a7 csky: bugfix format of cpu verion id.
 083435f csky: irq-csky-v2 alpha init.
 21209e5 csky: add .gitignore
 73e19b4 csky: remove FMFS_FPU_REGS/FMTS_FPU_REGS
 07e8fac csky: add fpu regset in ptrace.c
 cac779d csky: add CSKY_VECIRQ_LEGENCY for SOC bug.
 54bab1d csky: move usp into pt_regs.
 b167422 csky: support regset for ptrace.
 a098d4c csky: remove ARCH_WANT_IPC_PARSE_VERSION
 fe61a84 csky: add timer-of support.
 27702e2 csky: bugfix boot error.
 ebe3edb csky: bugfix gx6605s boot failed  - add __HEAD to head.section for head.S  - move INIT_SECTION together to fix compile warning.
 7138cae csky: coding convension for timer-nationalchip.c
 fa7f9bb csky: use ffs instead of fls.
 ddc9e81 csky: change to generic irq chip for irq-csky.c
 e9be8b9 irqchip: add generic irq chip for irq-nationalchip
 2ee83fe csky: add set_handle_irq(), ref from openrisc & arm.
 74181d6 csky: use irq_domain_add_linear instead of leagcy.
 fa45ae4 csky: bugfix setup stroge order for uncached.
 eb8030f csky: add HIGHMEM config in Kconfig
 4f983d4 csky: remove "default n" in Kconfig
 2467575 csky: use asm-generic/signal.h
 77438e5 csky: coding conventions for irq.c
 2e4a2b4 csky: optimize the cache flush ops.
 96e1c58 csky: add CONFIG_CPU_ASID_BITS.
 9339666 csky: add cprcr() cpwcr() for abiv1
 ff05be4 csky: add THREAD_SHIFT define in asm/page.h
 52ab022 csky: add mfcr() mtcr() in asm/reg_ops.h
 bdcd8f3 csky: revert back Kconfig select.
 590c7e6 csky: bugfix compile error with CONFIG_AUDIT
 1989292 csky: revert some back with cleanup unistd.h
 f1454fe csky: cleanup unistd.h
 5d2985f csky: cleanup Kconfig and Makefile.
 423d97e csky: cancel subdirectories
 cae2af4 csky: use asm-generic/fcntl.h
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Merge tag 'csky-for-linus-4.20' of https://github.com/c-sky/csky-linux

Pull C-SKY architecture port from Guo Ren:
 "This contains the Linux port for C-SKY(csky) based on linux-4.19
  Release, which has been through 10 rounds of review on mailing list.

  More information:

    http://en.c-sky.com

  The development repo:

    https://github.com/c-sky/csky-linux

  ABI Documentation:

    https://github.com/c-sky/csky-doc

  Here is the pre-built cross compiler for fast test from our CI:

    https://gitlab.com/c-sky/buildroot/-/jobs/101608095/artifacts/file/output/images/csky_toolchain_qemu_csky_ck807f_4.18_glibc_defconfig_482b221e52908be1c9b2ccb444255e1562bb7025.tar.xz

  We use buildroot as our CI-test enviornment. "LTP, Lmbench ..." will
  be tested for every commit. See here for more details:

    https://gitlab.com/c-sky/buildroot/pipelines

  We'll continouslly improve csky subsystem in future"

Arnd acks, and adds the following notes:
 "I did a thorough review of the ABI, which as usual mainly consists of
  spotting any files that don't use the asm-generic ABI itself, and
  having it changed to it matches exactly what we do on other new
  architectures.

  I also looked at every other patch and commented on maybe half of them
  where I saw something that did not quite seem right. Others have
  reviewed specific patches in greater depth. I'm sure that one could
  fine more of the minor details, but as long as they are not ABI
  relevant, they can be fixed later.

  The only patch that is part of the ABI and that nobody reviewed is the
  signal handling. This is one of the areas I never worked on in much
  detail. I did not see anything wrong with it, but I also don't know
  what the problems with the other architectures are here, and we seem
  to be hitting issues occasionally, and we never managed to generalize
  this enough for new architectures to have a trivial implementation.

  I was originally hoping that we could have the 64-bit time_t
  interfaces ready in time to completely drop the 32-bit ones, but that
  did not happen. We might still remove them in the next merge window
  depending on whether the libc upstream people prefer to keep them or
  not.

  One more general comment: I think this may well be the last new CPU
  architecture we ever add to the kernel. Both nds32 and c-sky are made
  by companies that also work on risc-v, and generally speaking risc-v
  seems to be killing off any of the minor licensable instruction set
  projects, just like ARM has mostly killed off the custom
  vendor-specific instruction sets already.

  If we add another architecture in the future, it may instead be
  something like the LLVM bitcode or WebAssembly, who knows?"

To which Geert Uytterhoeven pipes in about another architecture still in
the pipeline: Kalray MPPA.

* tag 'csky-for-linus-4.20' of https://github.com/c-sky/csky-linux: (24 commits)
  dt-bindings: interrupt-controller: C-SKY APB intc
  irqchip: add C-SKY APB bus interrupt controller
  dt-bindings: interrupt-controller: C-SKY SMP intc
  irqchip: add C-SKY SMP interrupt controller
  MAINTAINERS: Add csky
  dt-bindings: Add vendor prefix for csky
  dt-bindings: csky CPU Bindings
  csky: Misc headers
  csky: SMP support
  csky: Debug and Ptrace GDB
  csky: User access
  csky: Library functions
  csky: ELF and module probe
  csky: Atomic operations
  csky: IRQ handling
  csky: VDSO and rt_sigreturn
  csky: Process management and Signal
  csky: MMU and page table management
  csky: Cache and TLB routines
  csky: System Call
  ...
2018-10-29 08:25:00 -07:00

406 lines
7.7 KiB
Text

menu "IRQ chip support"
config IRQCHIP
def_bool y
depends on OF_IRQ
config ARM_GIC
bool
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_MULTI_HANDLER
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config ARM_GIC_PM
bool
depends on PM
select ARM_GIC
select PM_CLK
config ARM_GIC_MAX_NR
int
default 2 if ARCH_REALVIEW
default 1
config ARM_GIC_V2M
bool
depends on PCI
select ARM_GIC
select PCI_MSI
config GIC_NON_BANKED
bool
config ARM_GIC_V3
bool
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
select IRQ_DOMAIN_HIERARCHY
select PARTITION_PERCPU
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config ARM_GIC_V3_ITS
bool
select GENERIC_MSI_IRQ_DOMAIN
default ARM_GIC_V3
config ARM_GIC_V3_ITS_PCI
bool
depends on ARM_GIC_V3_ITS
depends on PCI
depends on PCI_MSI
default ARM_GIC_V3_ITS
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_NVIC
bool
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
select GENERIC_IRQ_CHIP
config ARM_VIC
bool
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
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 ARMADA_370_XP_IRQ
bool
select GENERIC_IRQ_CHIP
select PCI_MSI if PCI
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config ALPINE_MSI
bool
depends on PCI
select PCI_MSI
select GENERIC_IRQ_CHIP
config ATMEL_AIC_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
select SPARSE_IRQ
config ATMEL_AIC5_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
select SPARSE_IRQ
config I8259
bool
select IRQ_DOMAIN
config BCM6345_L1_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config BCM7038_L1_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config BCM7120_L2_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config BRCMSTB_L2_IRQ
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config DW_APB_ICTL
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config FARADAY_FTINTC010
bool
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
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 IRQ_MIPS_CPU
bool
select GENERIC_IRQ_CHIP
select GENERIC_IRQ_IPI if SYS_SUPPORTS_MULTITHREADING
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY if GENERIC_IRQ_IPI
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config CLPS711X_IRQCHIP
bool
depends on ARCH_CLPS711X
select IRQ_DOMAIN
select GENERIC_IRQ_MULTI_HANDLER
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
select GENERIC_IRQ_MULTI_HANDLER
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 RENESAS_INTC_IRQPIN
bool
select IRQ_DOMAIN
config RENESAS_IRQC
bool
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config ST_IRQCHIP
bool
select REGMAP
select MFD_SYSCON
help
Enables SysCfg Controlled IRQs on STi based platforms.
config TANGO_IRQ
bool
select IRQ_DOMAIN
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
config XILINX_INTC
bool
select IRQ_DOMAIN
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_IPI
select IRQ_DOMAIN_HIERARCHY
select MIPS_CM
config INGENIC_IRQ
bool
depends on MACH_INGENIC
default y
config RENESAS_H8300H_INTC
bool
select IRQ_DOMAIN
config RENESAS_H8S_INTC
bool
select IRQ_DOMAIN
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
bool
config MVEBU_ICU
bool
config MVEBU_ODMI
bool
select GENERIC_MSI_IRQ_DOMAIN
config MVEBU_PIC
bool
config MVEBU_SEI
bool
config LS_SCFG_MSI
def_bool y if SOC_LS1021A || ARCH_LAYERSCAPE
depends on PCI && PCI_MSI
config PARTITION_PERCPU
bool
config EZNPS_GIC
bool "NPS400 Global Interrupt Manager (GIM)"
depends on ARC || (COMPILE_TEST && !64BIT)
select IRQ_DOMAIN
help
Support the EZchip NPS400 global interrupt 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
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
bool "Meson GPIO Interrupt Multiplexer"
depends on ARCH_MESON
select IRQ_DOMAIN
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 IRQ_DOMAIN
help
Say yes here to enable Goldfish interrupt controller driver used
for Goldfish based virtual platforms.
config QCOM_PDC
bool "QCOM PDC"
depends on ARCH_QCOM
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
help
Power Domain Controller driver to manage and configure wakeup
IRQs for Qualcomm Technologies Inc (QTI) mobile chips.
config CSKY_MPINTC
bool "C-SKY Multi Processor Interrupt Controller"
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 hw and it use 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 use mmio map apb-bus to visit
the controller's register.
endmenu
config SIFIVE_PLIC
bool "SiFive Platform-Level Interrupt Controller"
depends on RISCV
help
This enables support for the PLIC chip found in SiFive (and
potentially other) RISC-V systems. The PLIC controls devices
interrupts and connects them to each core's local interrupt
controller. Aside from timer and software interrupts, all other
interrupt sources are subordinate to the PLIC.
If you don't know what to do here, say Y.