Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-block.git] / arch / mips / Kconfig

# SPDX-License-Identifier: GPL-2.0
config MIPS
        bool
        default y
        select ARCH_32BIT_OFF_T if !64BIT
        select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
        select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
        select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
        select ARCH_HAS_FORTIFY_SOURCE
        select ARCH_HAS_KCOV
        select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
        select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
        select ARCH_HAS_STRNCPY_FROM_USER
        select ARCH_HAS_STRNLEN_USER
        select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
        select ARCH_HAS_UBSAN_SANITIZE_ALL
        select ARCH_HAS_GCOV_PROFILE_ALL
        select ARCH_KEEP_MEMBLOCK
        select ARCH_USE_BUILTIN_BSWAP
        select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
        select ARCH_USE_MEMTEST
        select ARCH_USE_QUEUED_RWLOCKS
        select ARCH_USE_QUEUED_SPINLOCKS
        select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
        select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
        select ARCH_WANT_IPC_PARSE_VERSION
        select ARCH_WANT_LD_ORPHAN_WARN
        select BUILDTIME_TABLE_SORT
        select CLONE_BACKWARDS
        select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
        select CPU_PM if CPU_IDLE
        select GENERIC_ATOMIC64 if !64BIT
        select GENERIC_CMOS_UPDATE
        select GENERIC_CPU_AUTOPROBE
        select GENERIC_GETTIMEOFDAY
        select GENERIC_IOMAP
        select GENERIC_IRQ_PROBE
        select GENERIC_IRQ_SHOW
        select GENERIC_ISA_DMA if EISA
        select GENERIC_LIB_ASHLDI3
        select GENERIC_LIB_ASHRDI3
        select GENERIC_LIB_CMPDI2
        select GENERIC_LIB_LSHRDI3
        select GENERIC_LIB_UCMPDI2
        select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_TIME_VSYSCALL
        select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
        select HAS_IOPORT if !NO_IOPORT_MAP || ISA
        select HAVE_ARCH_COMPILER_H
        select HAVE_ARCH_JUMP_LABEL
        select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
        select HAVE_ARCH_MMAP_RND_BITS if MMU
        select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
        select HAVE_ARCH_SECCOMP_FILTER
        select HAVE_ARCH_TRACEHOOK
        select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
        select HAVE_ASM_MODVERSIONS
        select HAVE_CONTEXT_TRACKING_USER
        select HAVE_TIF_NOHZ
        select HAVE_C_RECORDMCOUNT
        select HAVE_DEBUG_KMEMLEAK
        select HAVE_DEBUG_STACKOVERFLOW
        select HAVE_DMA_CONTIGUOUS
        select HAVE_DYNAMIC_FTRACE
        select HAVE_EBPF_JIT if !CPU_MICROMIPS
        select HAVE_EXIT_THREAD
        select HAVE_FAST_GUP
        select HAVE_FTRACE_MCOUNT_RECORD
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_FUNCTION_TRACER
        select HAVE_GCC_PLUGINS
        select HAVE_GENERIC_VDSO
        select HAVE_IOREMAP_PROT
        select HAVE_IRQ_EXIT_ON_IRQ_STACK
        select HAVE_IRQ_TIME_ACCOUNTING
        select HAVE_KPROBES
        select HAVE_KRETPROBES
        select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
        select HAVE_MOD_ARCH_SPECIFIC
        select HAVE_NMI
        select HAVE_PERF_EVENTS
        select HAVE_PERF_REGS
        select HAVE_PERF_USER_STACK_DUMP
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_RSEQ
        select HAVE_SPARSE_SYSCALL_NR
        select HAVE_STACKPROTECTOR
        select HAVE_SYSCALL_TRACEPOINTS
        select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
        select IRQ_FORCED_THREADING
        select ISA if EISA
        select MODULES_USE_ELF_REL if MODULES
        select MODULES_USE_ELF_RELA if MODULES && 64BIT
        select PERF_USE_VMALLOC
        select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
        select RTC_LIB
        select SYSCTL_EXCEPTION_TRACE
        select TRACE_IRQFLAGS_SUPPORT
        select ARCH_HAS_ELFCORE_COMPAT
        select HAVE_ARCH_KCSAN if 64BIT

config MIPS_FIXUP_BIGPHYS_ADDR
        bool

config MIPS_GENERIC
        bool

config MACH_INGENIC
        bool
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_ZBOOT
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select PINCTRL
        select GPIOLIB
        select COMMON_CLK
        select GENERIC_IRQ_CHIP
        select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
        select USE_OF
        select CPU_SUPPORTS_CPUFREQ
        select MIPS_EXTERNAL_TIMER

menu "Machine selection"

choice
        prompt "System type"
        default MIPS_GENERIC_KERNEL

config MIPS_GENERIC_KERNEL
        bool "Generic board-agnostic MIPS kernel"
        select MIPS_GENERIC
        select BOOT_RAW
        select BUILTIN_DTB
        select CEVT_R4K
        select CLKSRC_MIPS_GIC
        select COMMON_CLK
        select CPU_MIPSR2_IRQ_EI
        select CPU_MIPSR2_IRQ_VI
        select CSRC_R4K
        select DMA_NONCOHERENT
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select MIPS_AUTO_PFN_OFFSET
        select MIPS_CPU_SCACHE
        select MIPS_GIC
        select MIPS_L1_CACHE_SHIFT_7
        select NO_EXCEPT_FILL
        select PCI_DRIVERS_GENERIC
        select SMP_UP if SMP
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_HAS_CPU_MIPS32_R6
        select SYS_HAS_CPU_MIPS64_R1
        select SYS_HAS_CPU_MIPS64_R2
        select SYS_HAS_CPU_MIPS64_R6
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_MICROMIPS
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_MIPS_CPS
        select SYS_SUPPORTS_MULTITHREADING
        select SYS_SUPPORTS_RELOCATABLE
        select SYS_SUPPORTS_SMARTMIPS
        select SYS_SUPPORTS_ZBOOT
        select UHI_BOOT
        select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
        select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select USE_OF
        help
          Select this to build a kernel which aims to support multiple boards,
          generally using a flattened device tree passed from the bootloader
          using the boot protocol defined in the UHI (Unified Hosting
          Interface) specification.

config MIPS_ALCHEMY
        bool "Alchemy processor based machines"
        select PHYS_ADDR_T_64BIT
        select CEVT_R4K
        select CSRC_R4K
        select IRQ_MIPS_CPU
        select DMA_NONCOHERENT          # Au1000,1500,1100 aren't, rest is
        select MIPS_FIXUP_BIGPHYS_ADDR if PCI
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_APM_EMULATION
        select GPIOLIB
        select SYS_SUPPORTS_ZBOOT
        select COMMON_CLK

config AR7
        bool "Texas Instruments AR7"
        select BOOT_ELF32
        select COMMON_CLK
        select DMA_NONCOHERENT
        select CEVT_R4K
        select CSRC_R4K
        select IRQ_MIPS_CPU
        select NO_EXCEPT_FILL
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_ZBOOT_UART16550
        select GPIOLIB
        select VLYNQ
        help
          Support for the Texas Instruments AR7 System-on-a-Chip
          family: TNETD7100, 7200 and 7300.

config ATH25
        bool "Atheros AR231x/AR531x SoC support"
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select IRQ_DOMAIN
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_HAS_EARLY_PRINTK
        help
          Support for Atheros AR231x and Atheros AR531x based boards

config ATH79
        bool "Atheros AR71XX/AR724X/AR913X based boards"
        select ARCH_HAS_RESET_CONTROLLER
        select BOOT_RAW
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
        select GPIOLIB
        select PINCTRL
        select COMMON_CLK
        select IRQ_MIPS_CPU
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_ZBOOT_UART_PROM
        select USE_OF
        select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
        help
          Support for the Atheros AR71XX/AR724X/AR913X SoCs.

config BMIPS_GENERIC
        bool "Broadcom Generic BMIPS kernel"
        select ARCH_HAS_RESET_CONTROLLER
        select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
        select BOOT_RAW
        select NO_EXCEPT_FILL
        select USE_OF
        select CEVT_R4K
        select CSRC_R4K
        select SYNC_R4K
        select COMMON_CLK
        select BCM6345_L1_IRQ
        select BCM7038_L1_IRQ
        select BCM7120_L2_IRQ
        select BRCMSTB_L2_IRQ
        select IRQ_MIPS_CPU
        select DMA_NONCOHERENT
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_HAS_CPU_BMIPS32_3300
        select SYS_HAS_CPU_BMIPS4350
        select SYS_HAS_CPU_BMIPS4380
        select SYS_HAS_CPU_BMIPS5000
        select SWAP_IO_SPACE
        select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select HARDIRQS_SW_RESEND
        select HAVE_PCI
        select PCI_DRIVERS_GENERIC
        select FW_CFE
        help
          Build a generic DT-based kernel image that boots on select
          BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
          box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
          must be set appropriately for your board.

config BCM47XX
        bool "Broadcom BCM47XX based boards"
        select BOOT_RAW
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select SYS_HAS_CPU_MIPS32_R1
        select NO_EXCEPT_FILL
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_ZBOOT
        select SYS_HAS_EARLY_PRINTK
        select USE_GENERIC_EARLY_PRINTK_8250
        select GPIOLIB
        select LEDS_GPIO_REGISTER
        select BCM47XX_NVRAM
        select BCM47XX_SPROM
        select BCM47XX_SSB if !BCM47XX_BCMA
        help
          Support for BCM47XX based boards

config BCM63XX
        bool "Broadcom BCM63XX based boards"
        select BOOT_RAW
        select CEVT_R4K
        select CSRC_R4K
        select SYNC_R4K
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_HAS_EARLY_PRINTK
        select SYS_HAS_CPU_BMIPS32_3300
        select SYS_HAS_CPU_BMIPS4350
        select SYS_HAS_CPU_BMIPS4380
        select SWAP_IO_SPACE
        select GPIOLIB
        select MIPS_L1_CACHE_SHIFT_4
        select HAVE_LEGACY_CLK
        help
          Support for BCM63XX based boards

config MIPS_COBALT
        bool "Cobalt Server"
        select CEVT_R4K
        select CSRC_R4K
        select CEVT_GT641XX
        select DMA_NONCOHERENT
        select FORCE_PCI
        select I8253
        select I8259
        select IRQ_MIPS_CPU
        select IRQ_GT641XX
        select PCI_GT64XXX_PCI0
        select SYS_HAS_CPU_NEVADA
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select USE_GENERIC_EARLY_PRINTK_8250

config MACH_DECSTATION
        bool "DECstations"
        select BOOT_ELF32
        select CEVT_DS1287
        select CEVT_R4K if CPU_R4X00
        select CSRC_IOASIC
        select CSRC_R4K if CPU_R4X00
        select CPU_DADDI_WORKAROUNDS if 64BIT
        select CPU_R4000_WORKAROUNDS if 64BIT
        select CPU_R4400_WORKAROUNDS if 64BIT
        select DMA_NONCOHERENT
        select NO_IOPORT_MAP
        select IRQ_MIPS_CPU
        select SYS_HAS_CPU_R3000
        select SYS_HAS_CPU_R4X00
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_128HZ
        select SYS_SUPPORTS_256HZ
        select SYS_SUPPORTS_1024HZ
        select MIPS_L1_CACHE_SHIFT_4
        help
          This enables support for DEC's MIPS based workstations.  For details
          see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
          DECstation porting pages on <http://decstation.unix-ag.org/>.

          If you have one of the following DECstation Models you definitely
          want to choose R4xx0 for the CPU Type:

                DECstation 5000/50
                DECstation 5000/150
                DECstation 5000/260
                DECsystem 5900/260

          otherwise choose R3000.

config MACH_JAZZ
        bool "Jazz family of machines"
        select ARC_MEMORY
        select ARC_PROMLIB
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
        select DMA_OPS
        select FW_ARC
        select FW_ARC32
        select ARCH_MAY_HAVE_PC_FDC
        select CEVT_R4K
        select CSRC_R4K
        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
        select GENERIC_ISA_DMA
        select HAVE_PCSPKR_PLATFORM
        select IRQ_MIPS_CPU
        select I8253
        select I8259
        select ISA
        select SYS_HAS_CPU_R4X00
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_100HZ
        select SYS_SUPPORTS_LITTLE_ENDIAN
        help
          This a family of machines based on the MIPS R4030 chipset which was
          used by several vendors to build RISC/os and Windows NT workstations.
          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
          Olivetti M700-10 workstations.

config MACH_INGENIC_SOC
        bool "Ingenic SoC based machines"
        select MIPS_GENERIC
        select MACH_INGENIC
        select SYS_SUPPORTS_ZBOOT_UART16550
        select CPU_SUPPORTS_CPUFREQ
        select MIPS_EXTERNAL_TIMER

config LANTIQ
        bool "Lantiq based platforms"
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select CEVT_R4K
        select CSRC_R4K
        select NO_EXCEPT_FILL
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_MULTITHREADING
        select SYS_SUPPORTS_VPE_LOADER
        select SYS_HAS_EARLY_PRINTK
        select GPIOLIB
        select SWAP_IO_SPACE
        select BOOT_RAW
        select HAVE_LEGACY_CLK
        select USE_OF
        select PINCTRL
        select PINCTRL_LANTIQ
        select ARCH_HAS_RESET_CONTROLLER
        select RESET_CONTROLLER

config MACH_LOONGSON32
        bool "Loongson 32-bit family of machines"
        select SYS_SUPPORTS_ZBOOT
        help
          This enables support for the Loongson-1 family of machines.

          Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
          the Institute of Computing Technology (ICT), Chinese Academy of
          Sciences (CAS).

config MACH_LOONGSON2EF
        bool "Loongson-2E/F family of machines"
        select SYS_SUPPORTS_ZBOOT
        help
          This enables the support of early Loongson-2E/F family of machines.

config MACH_LOONGSON64
        bool "Loongson 64-bit family of machines"
        select ARCH_SPARSEMEM_ENABLE
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
        select GENERIC_ISA_DMA_SUPPORT_BROKEN
        select BOOT_ELF32
        select BOARD_SCACHE
        select CSRC_R4K
        select CEVT_R4K
        select FORCE_PCI
        select ISA
        select I8259
        select IRQ_MIPS_CPU
        select NO_EXCEPT_FILL
        select NR_CPUS_DEFAULT_64
        select USE_GENERIC_EARLY_PRINTK_8250
        select PCI_DRIVERS_GENERIC
        select SYS_HAS_CPU_LOONGSON64
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_SMP
        select SYS_SUPPORTS_HOTPLUG_CPU
        select SYS_SUPPORTS_NUMA
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_ZBOOT
        select SYS_SUPPORTS_RELOCATABLE
        select ZONE_DMA32
        select COMMON_CLK
        select USE_OF
        select BUILTIN_DTB
        select PCI_HOST_GENERIC
        select HAVE_ARCH_NODEDATA_EXTENSION if NUMA
        help
          This enables the support of Loongson-2/3 family of machines.

          Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
          GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
          and Loongson-2F which will be removed), developed by the Institute
          of Computing Technology (ICT), Chinese Academy of Sciences (CAS).

config MIPS_MALTA
        bool "MIPS Malta board"
        select ARCH_MAY_HAVE_PC_FDC
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
        select BOOT_ELF32
        select BOOT_RAW
        select BUILTIN_DTB
        select CEVT_R4K
        select CLKSRC_MIPS_GIC
        select COMMON_CLK
        select CSRC_R4K
        select DMA_NONCOHERENT
        select GENERIC_ISA_DMA
        select HAVE_PCSPKR_PLATFORM
        select HAVE_PCI
        select I8253
        select I8259
        select IRQ_MIPS_CPU
        select MIPS_BONITO64
        select MIPS_CPU_SCACHE
        select MIPS_GIC
        select MIPS_L1_CACHE_SHIFT_6
        select MIPS_MSC
        select PCI_GT64XXX_PCI0
        select SMP_UP if SMP
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_HAS_CPU_MIPS32_R3_5
        select SYS_HAS_CPU_MIPS32_R5
        select SYS_HAS_CPU_MIPS32_R6
        select SYS_HAS_CPU_MIPS64_R1
        select SYS_HAS_CPU_MIPS64_R2
        select SYS_HAS_CPU_MIPS64_R6
        select SYS_HAS_CPU_NEVADA
        select SYS_HAS_CPU_RM7000
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_MICROMIPS
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_MIPS_CPS
        select SYS_SUPPORTS_MULTITHREADING
        select SYS_SUPPORTS_RELOCATABLE
        select SYS_SUPPORTS_SMARTMIPS
        select SYS_SUPPORTS_VPE_LOADER
        select SYS_SUPPORTS_ZBOOT
        select USE_OF
        select WAR_ICACHE_REFILLS
        select ZONE_DMA32 if 64BIT
        help
          This enables support for the MIPS Technologies Malta evaluation
          board.

config MACH_PIC32
        bool "Microchip PIC32 Family"
        help
          This enables support for the Microchip PIC32 family of platforms.

          Microchip PIC32 is a family of general-purpose 32 bit MIPS core
          microcontrollers.

config MACH_NINTENDO64
        bool "Nintendo 64 console"
        select CEVT_R4K
        select CSRC_R4K
        select SYS_HAS_CPU_R4300
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_ZBOOT
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU

config RALINK
        bool "Ralink based machines"
        select CEVT_R4K
        select COMMON_CLK
        select CSRC_R4K
        select BOOT_RAW
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select USE_OF
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_ZBOOT
        select SYS_HAS_EARLY_PRINTK
        select ARCH_HAS_RESET_CONTROLLER
        select RESET_CONTROLLER

config MACH_REALTEK_RTL
        bool "Realtek RTL838x/RTL839x based machines"
        select MIPS_GENERIC
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select CSRC_R4K
        select CEVT_R4K
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_HAS_CPU_MIPS32_R2
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_MIPS16
        select SYS_SUPPORTS_MULTITHREADING
        select SYS_SUPPORTS_VPE_LOADER
        select BOOT_RAW
        select PINCTRL
        select USE_OF

config SGI_IP22
        bool "SGI IP22 (Indy/Indigo2)"
        select ARC_MEMORY
        select ARC_PROMLIB
        select FW_ARC
        select FW_ARC32
        select ARCH_MIGHT_HAVE_PC_SERIO
        select BOOT_ELF32
        select CEVT_R4K
        select CSRC_R4K
        select DEFAULT_SGI_PARTITION
        select DMA_NONCOHERENT
        select HAVE_EISA
        select I8253
        select I8259
        select IP22_CPU_SCACHE
        select IRQ_MIPS_CPU
        select GENERIC_ISA_DMA_SUPPORT_BROKEN
        select SGI_HAS_I8042
        select SGI_HAS_INDYDOG
        select SGI_HAS_HAL2
        select SGI_HAS_SEEQ
        select SGI_HAS_WD93
        select SGI_HAS_ZILOG
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_R4X00
        select SYS_HAS_CPU_R5000
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select WAR_R4600_V1_INDEX_ICACHEOP
        select WAR_R4600_V1_HIT_CACHEOP
        select WAR_R4600_V2_HIT_CACHEOP
        select MIPS_L1_CACHE_SHIFT_7
        help
          This are the SGI Indy, Challenge S and Indigo2, as well as certain
          OEM variants like the Tandem CMN B006S. To compile a Linux kernel
          that runs on these, say Y here.

config SGI_IP27
        bool "SGI IP27 (Origin200/2000)"
        select ARCH_HAS_PHYS_TO_DMA
        select ARCH_SPARSEMEM_ENABLE
        select FW_ARC
        select FW_ARC64
        select ARC_CMDLINE_ONLY
        select BOOT_ELF64
        select DEFAULT_SGI_PARTITION
        select FORCE_PCI
        select SYS_HAS_EARLY_PRINTK
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select IRQ_DOMAIN_HIERARCHY
        select NR_CPUS_DEFAULT_64
        select PCI_DRIVERS_GENERIC
        select PCI_XTALK_BRIDGE
        select SYS_HAS_CPU_R10000
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_NUMA
        select SYS_SUPPORTS_SMP
        select WAR_R10000_LLSC
        select MIPS_L1_CACHE_SHIFT_7
        select NUMA
        select HAVE_ARCH_NODEDATA_EXTENSION
        help
          This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
          workstations.  To compile a Linux kernel that runs on these, say Y
          here.

config SGI_IP28
        bool "SGI IP28 (Indigo2 R10k)"
        select ARC_MEMORY
        select ARC_PROMLIB
        select FW_ARC
        select FW_ARC64
        select ARCH_MIGHT_HAVE_PC_SERIO
        select BOOT_ELF64
        select CEVT_R4K
        select CSRC_R4K
        select DEFAULT_SGI_PARTITION
        select DMA_NONCOHERENT
        select GENERIC_ISA_DMA_SUPPORT_BROKEN
        select IRQ_MIPS_CPU
        select HAVE_EISA
        select I8253
        select I8259
        select SGI_HAS_I8042
        select SGI_HAS_INDYDOG
        select SGI_HAS_HAL2
        select SGI_HAS_SEEQ
        select SGI_HAS_WD93
        select SGI_HAS_ZILOG
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_R10000
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select WAR_R10000_LLSC
        select MIPS_L1_CACHE_SHIFT_7
        help
          This is the SGI Indigo2 with R10000 processor.  To compile a Linux
          kernel that runs on these, say Y here.

config SGI_IP30
        bool "SGI IP30 (Octane/Octane2)"
        select ARCH_HAS_PHYS_TO_DMA
        select FW_ARC
        select FW_ARC64
        select BOOT_ELF64
        select CEVT_R4K
        select CSRC_R4K
        select FORCE_PCI
        select SYNC_R4K if SMP
        select ZONE_DMA32
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select IRQ_DOMAIN_HIERARCHY
        select PCI_DRIVERS_GENERIC
        select PCI_XTALK_BRIDGE
        select SYS_HAS_EARLY_PRINTK
        select SYS_HAS_CPU_R10000
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_SMP
        select WAR_R10000_LLSC
        select MIPS_L1_CACHE_SHIFT_7
        select ARC_MEMORY
        help
          These are the SGI Octane and Octane2 graphics workstations.  To
          compile a Linux kernel that runs on these, say Y here.

config SGI_IP32
        bool "SGI IP32 (O2)"
        select ARC_MEMORY
        select ARC_PROMLIB
        select ARCH_HAS_PHYS_TO_DMA
        select FW_ARC
        select FW_ARC32
        select BOOT_ELF32
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select R5000_CPU_SCACHE
        select RM7000_CPU_SCACHE
        select SYS_HAS_CPU_R5000
        select SYS_HAS_CPU_R10000 if BROKEN
        select SYS_HAS_CPU_RM7000
        select SYS_HAS_CPU_NEVADA
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select WAR_ICACHE_REFILLS
        help
          If you want this kernel to run on SGI O2 workstation, say Y here.

config SIBYTE_CRHONE
        bool "Sibyte BCM91125C-CRhone"
        select BOOT_ELF32
        select SIBYTE_BCM1125
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_RHONE
        bool "Sibyte BCM91125E-Rhone"
        select BOOT_ELF32
        select SIBYTE_SB1250
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_SWARM
        bool "Sibyte BCM91250A-SWARM"
        select BOOT_ELF32
        select HAVE_PATA_PLATFORM
        select SIBYTE_SB1250
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select ZONE_DMA32 if 64BIT
        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SIBYTE_LITTLESUR
        bool "Sibyte BCM91250C2-LittleSur"
        select BOOT_ELF32
        select HAVE_PATA_PLATFORM
        select SIBYTE_SB1250
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select ZONE_DMA32 if 64BIT

config SIBYTE_SENTOSA
        bool "Sibyte BCM91250E-Sentosa"
        select BOOT_ELF32
        select SIBYTE_SB1250
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SIBYTE_BIGSUR
        bool "Sibyte BCM91480B-BigSur"
        select BOOT_ELF32
        select NR_CPUS_DEFAULT_4
        select SIBYTE_BCM1x80
        select SWAP_IO_SPACE
        select SYS_HAS_CPU_SB1
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select ZONE_DMA32 if 64BIT
        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SNI_RM
        bool "SNI RM200/300/400"
        select ARC_MEMORY
        select ARC_PROMLIB
        select FW_ARC if CPU_LITTLE_ENDIAN
        select FW_ARC32 if CPU_LITTLE_ENDIAN
        select FW_SNIPROM if CPU_BIG_ENDIAN
        select ARCH_MAY_HAVE_PC_FDC
        select ARCH_MIGHT_HAVE_PC_PARPORT
        select ARCH_MIGHT_HAVE_PC_SERIO
        select BOOT_ELF32
        select CEVT_R4K
        select CSRC_R4K
        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
        select DMA_NONCOHERENT
        select GENERIC_ISA_DMA
        select HAVE_EISA
        select HAVE_PCSPKR_PLATFORM
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select I8253
        select I8259
        select ISA
        select MIPS_L1_CACHE_SHIFT_6
        select SWAP_IO_SPACE if CPU_BIG_ENDIAN
        select SYS_HAS_CPU_R4X00
        select SYS_HAS_CPU_R5000
        select SYS_HAS_CPU_R10000
        select R5000_CPU_SCACHE
        select SYS_HAS_EARLY_PRINTK
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select WAR_R4600_V2_HIT_CACHEOP
        help
          The SNI RM200/300/400 are MIPS-based machines manufactured by
          Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
          Technology and now in turn merged with Fujitsu.  Say Y here to
          support this machine type.

config MACH_TX49XX
        bool "Toshiba TX49 series based machines"
        select WAR_TX49XX_ICACHE_INDEX_INV

config MIKROTIK_RB532
        bool "Mikrotik RB532 boards"
        select CEVT_R4K
        select CSRC_R4K
        select DMA_NONCOHERENT
        select HAVE_PCI
        select IRQ_MIPS_CPU
        select SYS_HAS_CPU_MIPS32_R1
        select SYS_SUPPORTS_32BIT_KERNEL
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SWAP_IO_SPACE
        select BOOT_RAW
        select GPIOLIB
        select MIPS_L1_CACHE_SHIFT_4
        help
          Support the Mikrotik(tm) RouterBoard 532 series,
          based on the IDT RC32434 SoC.

config CAVIUM_OCTEON_SOC
        bool "Cavium Networks Octeon SoC based boards"
        select CEVT_R4K
        select ARCH_HAS_PHYS_TO_DMA
        select HAVE_RAPIDIO
        select PHYS_ADDR_T_64BIT
        select SYS_SUPPORTS_64BIT_KERNEL
        select SYS_SUPPORTS_BIG_ENDIAN
        select EDAC_SUPPORT
        select EDAC_ATOMIC_SCRUB
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
        select SYS_HAS_EARLY_PRINTK
        select SYS_HAS_CPU_CAVIUM_OCTEON
        select HAVE_PCI
        select HAVE_PLAT_DELAY
        select HAVE_PLAT_FW_INIT_CMDLINE
        select HAVE_PLAT_MEMCPY
        select ZONE_DMA32
        select GPIOLIB
        select USE_OF
        select ARCH_SPARSEMEM_ENABLE
        select SYS_SUPPORTS_SMP
        select NR_CPUS_DEFAULT_64
        select MIPS_NR_CPU_NR_MAP_1024
        select BUILTIN_DTB
        select MTD
        select MTD_COMPLEX_MAPPINGS
        select SWIOTLB
        select SYS_SUPPORTS_RELOCATABLE
        help
          This option supports all of the Octeon reference boards from Cavium
          Networks. It builds a kernel that dynamically determines the Octeon
          CPU type and supports all known board reference implementations.
          Some of the supported boards are:
                EBT3000
                EBH3000
                EBH3100
                Thunder
                Kodama
                Hikari
          Say Y here for most Octeon reference boards.

endchoice

source "arch/mips/alchemy/Kconfig"
source "arch/mips/ath25/Kconfig"
source "arch/mips/ath79/Kconfig"
source "arch/mips/bcm47xx/Kconfig"
source "arch/mips/bcm63xx/Kconfig"
source "arch/mips/bmips/Kconfig"
source "arch/mips/generic/Kconfig"
source "arch/mips/ingenic/Kconfig"
source "arch/mips/jazz/Kconfig"
source "arch/mips/lantiq/Kconfig"
source "arch/mips/pic32/Kconfig"
source "arch/mips/ralink/Kconfig"
source "arch/mips/sgi-ip27/Kconfig"
source "arch/mips/sibyte/Kconfig"
source "arch/mips/txx9/Kconfig"
source "arch/mips/cavium-octeon/Kconfig"
source "arch/mips/loongson2ef/Kconfig"
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"

endmenu

config GENERIC_HWEIGHT
        bool
        default y

config GENERIC_CALIBRATE_DELAY
        bool
        default y

config SCHED_OMIT_FRAME_POINTER
        bool
        default y

#
# Select some configuration options automatically based on user selections.
#
config FW_ARC
        bool

config ARCH_MAY_HAVE_PC_FDC
        bool

config BOOT_RAW
        bool

config CEVT_BCM1480
        bool

config CEVT_DS1287
        bool

config CEVT_GT641XX
        bool

config CEVT_R4K
        bool

config CEVT_SB1250
        bool

config CEVT_TXX9
        bool

config CSRC_BCM1480
        bool

config CSRC_IOASIC
        bool

config CSRC_R4K
        select CLOCKSOURCE_WATCHDOG if CPU_FREQ
        bool

config CSRC_SB1250
        bool

config MIPS_CLOCK_VSYSCALL
        def_bool CSRC_R4K || CLKSRC_MIPS_GIC

config GPIO_TXX9
        select GPIOLIB
        bool

config FW_CFE
        bool

config ARCH_SUPPORTS_UPROBES
        def_bool y

config DMA_NONCOHERENT
        bool
        #
        # MIPS allows mixing "slightly different" Cacheability and Coherency
        # Attribute bits.  It is believed that the uncached access through
        # KSEG1 and the implementation specific "uncached accelerated" used
        # by pgprot_writcombine can be mixed, and the latter sometimes provides
        # significant advantages.
        #
        select ARCH_HAS_SETUP_DMA_OPS
        select ARCH_HAS_DMA_WRITE_COMBINE
        select ARCH_HAS_DMA_PREP_COHERENT
        select ARCH_HAS_SYNC_DMA_FOR_CPU
        select ARCH_HAS_SYNC_DMA_FOR_DEVICE
        select ARCH_HAS_DMA_SET_UNCACHED
        select DMA_NONCOHERENT_MMAP
        select NEED_DMA_MAP_STATE

config SYS_HAS_EARLY_PRINTK
        bool

config SYS_SUPPORTS_HOTPLUG_CPU
        bool

config MIPS_BONITO64
        bool

config MIPS_MSC
        bool

config SYNC_R4K
        bool

config NO_IOPORT_MAP
        def_bool n

config GENERIC_CSUM
        def_bool CPU_NO_LOAD_STORE_LR

config GENERIC_ISA_DMA
        bool
        select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
        select ISA_DMA_API

config GENERIC_ISA_DMA_SUPPORT_BROKEN
        bool
        select GENERIC_ISA_DMA

config HAVE_PLAT_DELAY
        bool

config HAVE_PLAT_FW_INIT_CMDLINE
        bool

config HAVE_PLAT_MEMCPY
        bool

config ISA_DMA_API
        bool

config SYS_SUPPORTS_RELOCATABLE
        bool
        help
          Selected if the platform supports relocating the kernel.
          The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
          to allow access to command line and entropy sources.

#
# Endianness selection.  Sufficiently obscure so many users don't know what to
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
        prompt "Endianness selection"
        help
          Some MIPS machines can be configured for either little or big endian
          byte order. These modes require different kernels and a different
          Linux distribution.  In general there is one preferred byteorder for a
          particular system but some systems are just as commonly used in the
          one or the other endianness.

config CPU_BIG_ENDIAN
        bool "Big endian"
        depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
        bool "Little endian"
        depends on SYS_SUPPORTS_LITTLE_ENDIAN

endchoice

config EXPORT_UASM
        bool

config SYS_SUPPORTS_APM_EMULATION
        bool

config SYS_SUPPORTS_BIG_ENDIAN
        bool

config SYS_SUPPORTS_LITTLE_ENDIAN
        bool

config MIPS_HUGE_TLB_SUPPORT
        def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

config IRQ_TXX9
        bool

config IRQ_GT641XX
        bool

config PCI_GT64XXX_PCI0
        bool

config PCI_XTALK_BRIDGE
        bool

config NO_EXCEPT_FILL
        bool

config MIPS_SPRAM
        bool

config SWAP_IO_SPACE
        bool

config SGI_HAS_INDYDOG
        bool

config SGI_HAS_HAL2
        bool

config SGI_HAS_SEEQ
        bool

config SGI_HAS_WD93
        bool

config SGI_HAS_ZILOG
        bool

config SGI_HAS_I8042
        bool

config DEFAULT_SGI_PARTITION
        bool

config FW_ARC32
        bool

config FW_SNIPROM
        bool

config BOOT_ELF32
        bool

config MIPS_L1_CACHE_SHIFT_4
        bool

config MIPS_L1_CACHE_SHIFT_5
        bool

config MIPS_L1_CACHE_SHIFT_6
        bool

config MIPS_L1_CACHE_SHIFT_7
        bool

config MIPS_L1_CACHE_SHIFT
        int
        default "7" if MIPS_L1_CACHE_SHIFT_7
        default "6" if MIPS_L1_CACHE_SHIFT_6
        default "5" if MIPS_L1_CACHE_SHIFT_5
        default "4" if MIPS_L1_CACHE_SHIFT_4
        default "5"

config ARC_CMDLINE_ONLY
        bool

config ARC_CONSOLE
        bool "ARC console support"
        depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)

config ARC_MEMORY
        bool

config ARC_PROMLIB
        bool

config FW_ARC64
        bool

config BOOT_ELF64
        bool

menu "CPU selection"

choice
        prompt "CPU type"
        default CPU_R4X00

config CPU_LOONGSON64
        bool "Loongson 64-bit CPU"
        depends on SYS_HAS_CPU_LOONGSON64
        select ARCH_HAS_PHYS_TO_DMA
        select CPU_MIPSR2
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select CPU_SUPPORTS_MSA
        select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
        select CPU_MIPSR2_IRQ_VI
        select WEAK_ORDERING
        select WEAK_REORDERING_BEYOND_LLSC
        select MIPS_ASID_BITS_VARIABLE
        select MIPS_PGD_C0_CONTEXT
        select MIPS_L1_CACHE_SHIFT_6
        select MIPS_FP_SUPPORT
        select GPIOLIB
        select SWIOTLB
        select HAVE_KVM
        help
          The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
          cores implements the MIPS64R2 instruction set with many extensions,
          including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
          3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
          Loongson-2E/2F is not covered here and will be removed in future.

config LOONGSON3_ENHANCEMENT
        bool "New Loongson-3 CPU Enhancements"
        default n
        depends on CPU_LOONGSON64
        help
          New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
          R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
          FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
          Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
          Fast TLB refill support, etc.

          This option enable those enhancements which are not probed at run
          time. If you want a generic kernel to run on all Loongson 3 machines,
          please say 'N' here. If you want a high-performance kernel to run on
          new Loongson-3 machines only, please say 'Y' here.

config CPU_LOONGSON3_WORKAROUNDS
        bool "Loongson-3 LLSC Workarounds"
        default y if SMP
        depends on CPU_LOONGSON64
        help
          Loongson-3 processors have the llsc issues which require workarounds.
          Without workarounds the system may hang unexpectedly.

          Say Y, unless you know what you are doing.

config CPU_LOONGSON3_CPUCFG_EMULATION
        bool "Emulate the CPUCFG instruction on older Loongson cores"
        default y
        depends on CPU_LOONGSON64
        help
          Loongson-3A R4 and newer have the CPUCFG instruction available for
          userland to query CPU capabilities, much like CPUID on x86. This
          option provides emulation of the instruction on older Loongson
          cores, back to Loongson-3A1000.

          If unsure, please say Y.

config CPU_LOONGSON2E
        bool "Loongson 2E"
        depends on SYS_HAS_CPU_LOONGSON2E
        select CPU_LOONGSON2EF
        help
          The Loongson 2E processor implements the MIPS III instruction set
          with many extensions.

          It has an internal FPGA northbridge, which is compatible to
          bonito64.

config CPU_LOONGSON2F
        bool "Loongson 2F"
        depends on SYS_HAS_CPU_LOONGSON2F
        select CPU_LOONGSON2EF
        help
          The Loongson 2F processor implements the MIPS III instruction set
          with many extensions.

          Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
          have a similar programming interface with FPGA northbridge used in
          Loongson2E.

config CPU_LOONGSON1B
        bool "Loongson 1B"
        depends on SYS_HAS_CPU_LOONGSON1B
        select CPU_LOONGSON32
        select LEDS_GPIO_REGISTER
        help
          The Loongson 1B is a 32-bit SoC, which implements the MIPS32
          Release 1 instruction set and part of the MIPS32 Release 2
          instruction set.

config CPU_LOONGSON1C
        bool "Loongson 1C"
        depends on SYS_HAS_CPU_LOONGSON1C
        select CPU_LOONGSON32
        select LEDS_GPIO_REGISTER
        help
          The Loongson 1C is a 32-bit SoC, which implements the MIPS32
          Release 1 instruction set and part of the MIPS32 Release 2
          instruction set.

config CPU_MIPS32_R1
        bool "MIPS32 Release 1"
        depends on SYS_HAS_CPU_MIPS32_R1
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        help
          Choose this option to build a kernel for release 1 or later of the
          MIPS32 architecture.  Most modern embedded systems with a 32-bit
          MIPS processor are based on a MIPS32 processor.  If you know the
          specific type of processor in your system, choose those that one
          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
          Release 2 of the MIPS32 architecture is available since several
          years so chances are you even have a MIPS32 Release 2 processor
          in which case you should choose CPU_MIPS32_R2 instead for better
          performance.

config CPU_MIPS32_R2
        bool "MIPS32 Release 2"
        depends on SYS_HAS_CPU_MIPS32_R2
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_MSA
        select HAVE_KVM
        help
          Choose this option to build a kernel for release 2 or later of the
          MIPS32 architecture.  Most modern embedded systems with a 32-bit
          MIPS processor are based on a MIPS32 processor.  If you know the
          specific type of processor in your system, choose those that one
          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.

config CPU_MIPS32_R5
        bool "MIPS32 Release 5"
        depends on SYS_HAS_CPU_MIPS32_R5
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_MSA
        select HAVE_KVM
        select MIPS_O32_FP64_SUPPORT
        help
          Choose this option to build a kernel for release 5 or later of the
          MIPS32 architecture.  New MIPS processors, starting with the Warrior
          family, are based on a MIPS32r5 processor. If you own an older
          processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

config CPU_MIPS32_R6
        bool "MIPS32 Release 6"
        depends on SYS_HAS_CPU_MIPS32_R6
        select CPU_HAS_PREFETCH
        select CPU_NO_LOAD_STORE_LR
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_MSA
        select HAVE_KVM
        select MIPS_O32_FP64_SUPPORT
        help
          Choose this option to build a kernel for release 6 or later of the
          MIPS32 architecture.  New MIPS processors, starting with the Warrior
          family, are based on a MIPS32r6 processor. If you own an older
          processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

config CPU_MIPS64_R1
        bool "MIPS64 Release 1"
        depends on SYS_HAS_CPU_MIPS64_R1
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        help
          Choose this option to build a kernel for release 1 or later of the
          MIPS64 architecture.  Many modern embedded systems with a 64-bit
          MIPS processor are based on a MIPS64 processor.  If you know the
          specific type of processor in your system, choose those that one
          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
          Release 2 of the MIPS64 architecture is available since several
          years so chances are you even have a MIPS64 Release 2 processor
          in which case you should choose CPU_MIPS64_R2 instead for better
          performance.

config CPU_MIPS64_R2
        bool "MIPS64 Release 2"
        depends on SYS_HAS_CPU_MIPS64_R2
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select CPU_SUPPORTS_MSA
        select HAVE_KVM
        help
          Choose this option to build a kernel for release 2 or later of the
          MIPS64 architecture.  Many modern embedded systems with a 64-bit
          MIPS processor are based on a MIPS64 processor.  If you know the
          specific type of processor in your system, choose those that one
          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.

config CPU_MIPS64_R5
        bool "MIPS64 Release 5"
        depends on SYS_HAS_CPU_MIPS64_R5
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select CPU_SUPPORTS_MSA
        select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
        select HAVE_KVM
        help
          Choose this option to build a kernel for release 5 or later of the
          MIPS64 architecture.  This is a intermediate MIPS architecture
          release partly implementing release 6 features. Though there is no
          any hardware known to be based on this release.

config CPU_MIPS64_R6
        bool "MIPS64 Release 6"
        depends on SYS_HAS_CPU_MIPS64_R6
        select CPU_HAS_PREFETCH
        select CPU_NO_LOAD_STORE_LR
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select CPU_SUPPORTS_MSA
        select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
        select HAVE_KVM
        help
          Choose this option to build a kernel for release 6 or later of the
          MIPS64 architecture.  New MIPS processors, starting with the Warrior
          family, are based on a MIPS64r6 processor. If you own an older
          processor, you probably need to select MIPS64r1 or MIPS64r2 instead.

config CPU_P5600
        bool "MIPS Warrior P5600"
        depends on SYS_HAS_CPU_P5600
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_MSA
        select CPU_SUPPORTS_CPUFREQ
        select CPU_MIPSR2_IRQ_VI
        select CPU_MIPSR2_IRQ_EI
        select HAVE_KVM
        select MIPS_O32_FP64_SUPPORT
        help
          Choose this option to build a kernel for MIPS Warrior P5600 CPU.
          It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
          MMU with two-levels TLB, UCA, MSA, MDU core level features and system
          level features like up to six P5600 calculation cores, CM2 with L2
          cache, IOCU/IOMMU (though might be unused depending on the system-
          specific IP core configuration), GIC, CPC, virtualisation module,
          eJTAG and PDtrace.

config CPU_R3000
        bool "R3000"
        depends on SYS_HAS_CPU_R3000
        select CPU_HAS_WB
        select CPU_R3K_TLB
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        help
          Please make sure to pick the right CPU type. Linux/MIPS is not
          designed to be generic, i.e. Kernels compiled for R3000 CPUs will
          *not* work on R4000 machines and vice versa.  However, since most
          of the supported machines have an R4000 (or similar) CPU, R4x00
          might be a safe bet.  If the resulting kernel does not work,
          try to recompile with R3000.

config CPU_R4300
        bool "R4300"
        depends on SYS_HAS_CPU_R4300
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        help
          MIPS Technologies R4300-series processors.

config CPU_R4X00
        bool "R4x00"
        depends on SYS_HAS_CPU_R4X00
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HUGEPAGES
        help
          MIPS Technologies R4000-series processors other than 4300, including
          the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
        bool "R49XX"
        depends on SYS_HAS_CPU_TX49XX
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HUGEPAGES

config CPU_R5000
        bool "R5000"
        depends on SYS_HAS_CPU_R5000
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HUGEPAGES
        help
          MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5500
        bool "R5500"
        depends on SYS_HAS_CPU_R5500
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HUGEPAGES
        help
          NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
          instruction set.

config CPU_NEVADA
        bool "RM52xx"
        depends on SYS_HAS_CPU_NEVADA
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HUGEPAGES
        help
          QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
        bool "R10000"
        depends on SYS_HAS_CPU_R10000
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        help
          MIPS Technologies R10000-series processors.

config CPU_RM7000
        bool "RM7000"
        depends on SYS_HAS_CPU_RM7000
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES

config CPU_SB1
        bool "SB1"
        depends on SYS_HAS_CPU_SB1
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select WEAK_ORDERING

config CPU_CAVIUM_OCTEON
        bool "Cavium Octeon processor"
        depends on SYS_HAS_CPU_CAVIUM_OCTEON
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_64BIT_KERNEL
        select WEAK_ORDERING
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES
        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
        select MIPS_L1_CACHE_SHIFT_7
        select HAVE_KVM
        help
          The Cavium Octeon processor is a highly integrated chip containing
          many ethernet hardware widgets for networking tasks. The processor
          can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
          Full details can be found at http://www.caviumnetworks.com.

config CPU_BMIPS
        bool "Broadcom BMIPS"
        depends on SYS_HAS_CPU_BMIPS
        select CPU_MIPS32
        select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
        select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
        select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
        select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
        select CPU_SUPPORTS_32BIT_KERNEL
        select DMA_NONCOHERENT
        select IRQ_MIPS_CPU
        select SWAP_IO_SPACE
        select WEAK_ORDERING
        select CPU_SUPPORTS_HIGHMEM
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_CPUFREQ
        select MIPS_EXTERNAL_TIMER
        select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
        help
          Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.

endchoice

config CPU_MIPS32_3_5_FEATURES
        bool "MIPS32 Release 3.5 Features"
        depends on SYS_HAS_CPU_MIPS32_R3_5
        depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
                   CPU_P5600
        help
          Choose this option to build a kernel for release 2 or later of the
          MIPS32 architecture including features from the 3.5 release such as
          support for Enhanced Virtual Addressing (EVA).

config CPU_MIPS32_3_5_EVA
        bool "Enhanced Virtual Addressing (EVA)"
        depends on CPU_MIPS32_3_5_FEATURES
        select EVA
        default y
        help
          Choose this option if you want to enable the Enhanced Virtual
          Addressing (EVA) on your MIPS32 core (such as proAptiv).
          One of its primary benefits is an increase in the maximum size
          of lowmem (up to 3GB). If unsure, say 'N' here.

config CPU_MIPS32_R5_FEATURES
        bool "MIPS32 Release 5 Features"
        depends on SYS_HAS_CPU_MIPS32_R5
        depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
        help
          Choose this option to build a kernel for release 2 or later of the
          MIPS32 architecture including features from release 5 such as
          support for Extended Physical Addressing (XPA).

config CPU_MIPS32_R5_XPA
        bool "Extended Physical Addressing (XPA)"
        depends on CPU_MIPS32_R5_FEATURES
        depends on !EVA
        depends on !PAGE_SIZE_4KB
        depends on SYS_SUPPORTS_HIGHMEM
        select XPA
        select HIGHMEM
        select PHYS_ADDR_T_64BIT
        default n
        help
          Choose this option if you want to enable the Extended Physical
          Addressing (XPA) on your MIPS32 core (such as P5600 series). The
          benefit is to increase physical addressing equal to or greater
          than 40 bits. Note that this has the side effect of turning on
          64-bit addressing which in turn makes the PTEs 64-bit in size.
          If unsure, say 'N' here.

if CPU_LOONGSON2F
config CPU_NOP_WORKAROUNDS
        bool

config CPU_JUMP_WORKAROUNDS
        bool

config CPU_LOONGSON2F_WORKAROUNDS
        bool "Loongson 2F Workarounds"
        default y
        select CPU_NOP_WORKAROUNDS
        select CPU_JUMP_WORKAROUNDS
        help
          Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
          require workarounds.  Without workarounds the system may hang
          unexpectedly.  For more information please refer to the gas
          -mfix-loongson2f-nop and -mfix-loongson2f-jump options.

          Loongson 2F03 and later have fixed these issues and no workarounds
          are needed.  The workarounds have no significant side effect on them
          but may decrease the performance of the system so this option should
          be disabled unless the kernel is intended to be run on 2F01 or 2F02
          systems.

          If unsure, please say Y.
endif # CPU_LOONGSON2F

config SYS_SUPPORTS_ZBOOT
        bool
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_BZIP2
        select HAVE_KERNEL_LZ4
        select HAVE_KERNEL_LZMA
        select HAVE_KERNEL_LZO
        select HAVE_KERNEL_XZ
        select HAVE_KERNEL_ZSTD

config SYS_SUPPORTS_ZBOOT_UART16550
        bool
        select SYS_SUPPORTS_ZBOOT

config SYS_SUPPORTS_ZBOOT_UART_PROM
        bool
        select SYS_SUPPORTS_ZBOOT

config CPU_LOONGSON2EF
        bool
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_64BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_HUGEPAGES

config CPU_LOONGSON32
        bool
        select CPU_MIPS32
        select CPU_MIPSR2
        select CPU_HAS_PREFETCH
        select CPU_SUPPORTS_32BIT_KERNEL
        select CPU_SUPPORTS_HIGHMEM
        select CPU_SUPPORTS_CPUFREQ

config CPU_BMIPS32_3300
        select SMP_UP if SMP
        bool

config CPU_BMIPS4350
        bool
        select SYS_SUPPORTS_SMP
        select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
        bool
        select MIPS_L1_CACHE_SHIFT_6
        select SYS_SUPPORTS_SMP
        select SYS_SUPPORTS_HOTPLUG_CPU
        select CPU_HAS_RIXI

config CPU_BMIPS5000
        bool
        select MIPS_CPU_SCACHE
        select MIPS_L1_CACHE_SHIFT_7
        select SYS_SUPPORTS_SMP
        select SYS_SUPPORTS_HOTPLUG_CPU
        select CPU_HAS_RIXI

config SYS_HAS_CPU_LOONGSON64
        bool
        select CPU_SUPPORTS_CPUFREQ
        select CPU_HAS_RIXI

config SYS_HAS_CPU_LOONGSON2E
        bool

config SYS_HAS_CPU_LOONGSON2F
        bool
        select CPU_SUPPORTS_CPUFREQ
        select CPU_SUPPORTS_ADDRWINCFG if 64BIT

config SYS_HAS_CPU_LOONGSON1B
        bool

config SYS_HAS_CPU_LOONGSON1C
        bool

config SYS_HAS_CPU_MIPS32_R1
        bool

config SYS_HAS_CPU_MIPS32_R2
        bool

config SYS_HAS_CPU_MIPS32_R3_5
        bool

config SYS_HAS_CPU_MIPS32_R5
        bool

config SYS_HAS_CPU_MIPS32_R6
        bool

config SYS_HAS_CPU_MIPS64_R1
        bool

config SYS_HAS_CPU_MIPS64_R2
        bool

config SYS_HAS_CPU_MIPS64_R5
        bool

config SYS_HAS_CPU_MIPS64_R6
        bool

config SYS_HAS_CPU_P5600
        bool

config SYS_HAS_CPU_R3000
        bool

config SYS_HAS_CPU_R4300
        bool

config SYS_HAS_CPU_R4X00
        bool

config SYS_HAS_CPU_TX49XX
        bool

config SYS_HAS_CPU_R5000
        bool

config SYS_HAS_CPU_R5500
        bool

config SYS_HAS_CPU_NEVADA
        bool

config SYS_HAS_CPU_R10000
        bool

config SYS_HAS_CPU_RM7000
        bool

config SYS_HAS_CPU_SB1
        bool

config SYS_HAS_CPU_CAVIUM_OCTEON
        bool

config SYS_HAS_CPU_BMIPS
        bool

config SYS_HAS_CPU_BMIPS32_3300
        bool
        select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS4350
        bool
        select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS4380
        bool
        select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS5000
        bool
        select SYS_HAS_CPU_BMIPS

#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
config WEAK_ORDERING
        bool

#
# CPU may reorder reads and writes beyond LL/SC
# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
#
config WEAK_REORDERING_BEYOND_LLSC
        bool
endmenu

#
# These two indicate any level of the MIPS32 and MIPS64 architecture
#
config CPU_MIPS32
        bool
        default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
                     CPU_MIPS32_R6 || CPU_P5600

config CPU_MIPS64
        bool
        default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
                     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON

#
# These indicate the revision of the architecture
#
config CPU_MIPSR1
        bool
        default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
        bool
        default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
        select CPU_HAS_RIXI
        select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
        select MIPS_SPRAM

config CPU_MIPSR5
        bool
        default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
        select CPU_HAS_RIXI
        select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
        select MIPS_SPRAM

config CPU_MIPSR6
        bool
        default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
        select CPU_HAS_RIXI
        select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
        select HAVE_ARCH_BITREVERSE
        select MIPS_ASID_BITS_VARIABLE
        select MIPS_CRC_SUPPORT
        select MIPS_SPRAM

config TARGET_ISA_REV
        int
        default 1 if CPU_MIPSR1
        default 2 if CPU_MIPSR2
        default 5 if CPU_MIPSR5
        default 6 if CPU_MIPSR6
        default 0
        help
          Reflects the ISA revision being targeted by the kernel build. This
          is effectively the Kconfig equivalent of MIPS_ISA_REV.

config EVA
        bool

config XPA
        bool

config SYS_SUPPORTS_32BIT_KERNEL
        bool
config SYS_SUPPORTS_64BIT_KERNEL
        bool
config CPU_SUPPORTS_32BIT_KERNEL
        bool
config CPU_SUPPORTS_64BIT_KERNEL
        bool
config CPU_SUPPORTS_CPUFREQ
        bool
config CPU_SUPPORTS_ADDRWINCFG
        bool
config CPU_SUPPORTS_HUGEPAGES
        bool
        depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
config MIPS_PGD_C0_CONTEXT
        bool
        depends on 64BIT
        default y if (CPU_MIPSR2 || CPU_MIPSR6)

#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
        bool
        default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6

menu "Kernel type"

choice
        prompt "Kernel code model"
        help
          You should only select this option if you have a workload that
          actually benefits from 64-bit processing or if your machine has
          large memory.  You will only be presented a single option in this
          menu if your system does not support both 32-bit and 64-bit kernels.

config 32BIT
        bool "32-bit kernel"
        depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
        select TRAD_SIGNALS
        help
          Select this option if you want to build a 32-bit kernel.

config 64BIT
        bool "64-bit kernel"
        depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
        help
          Select this option if you want to build a 64-bit kernel.

endchoice

config MIPS_VA_BITS_48
        bool "48 bits virtual memory"
        depends on 64BIT
        help
          Support a maximum at least 48 bits of application virtual
          memory.  Default is 40 bits or less, depending on the CPU.
          For page sizes 16k and above, this option results in a small
          memory overhead for page tables.  For 4k page size, a fourth
          level of page tables is added which imposes both a memory
          overhead as well as slower TLB fault handling.

          If unsure, say N.

config ZBOOT_LOAD_ADDRESS
        hex "Compressed kernel load address"
        default 0xffffffff80400000 if BCM47XX
        default 0x0
        depends on SYS_SUPPORTS_ZBOOT
        help
          The address to load compressed kernel, aka vmlinuz.

          This is only used if non-zero.

choice
        prompt "Kernel page size"
        default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
        bool "4kB"
        depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
        help
          This option select the standard 4kB Linux page size.  On some
          R3000-family processors this is the only available page size.  Using
          4kB page size will minimize memory consumption and is therefore
          recommended for low memory systems.

config PAGE_SIZE_8KB
        bool "8kB"
        depends on CPU_CAVIUM_OCTEON
        depends on !MIPS_VA_BITS_48
        help
          Using 8kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available
          only on cnMIPS processors.  Note that you will need a suitable Linux
          distribution to support this.

config PAGE_SIZE_16KB
        bool "16kB"
        depends on !CPU_R3000
        help
          Using 16kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available on
          all non-R3000 family processors.  Note that you will need a suitable
          Linux distribution to support this.

config PAGE_SIZE_32KB
        bool "32kB"
        depends on CPU_CAVIUM_OCTEON
        depends on !MIPS_VA_BITS_48
        help
          Using 32kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available
          only on cnMIPS cores.  Note that you will need a suitable Linux
          distribution to support this.

config PAGE_SIZE_64KB
        bool "64kB"
        depends on !CPU_R3000
        help
          Using 64kB page size will result in higher performance kernel at
          the price of higher memory consumption.  This option is available on
          all non-R3000 family processor.  Not that at the time of this
          writing this option is still high experimental.

endchoice

config ARCH_FORCE_MAX_ORDER
        int "Maximum zone order"
        default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
        default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
        default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
        default "10"
        help
          The kernel memory allocator divides physically contiguous memory
          blocks into "zones", where each zone is a power of two number of
          pages.  This option selects the largest power of two that the kernel
          keeps in the memory allocator.  If you need to allocate very large
          blocks of physically contiguous memory, then you may need to
          increase this value.

          The page size is not necessarily 4KB.  Keep this in mind
          when choosing a value for this option.

config BOARD_SCACHE
        bool

config IP22_CPU_SCACHE
        bool
        select BOARD_SCACHE

#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
        bool
        select BOARD_SCACHE

config R5000_CPU_SCACHE
        bool
        select BOARD_SCACHE

config RM7000_CPU_SCACHE
        bool
        select BOARD_SCACHE

config SIBYTE_DMA_PAGEOPS
        bool "Use DMA to clear/copy pages"
        depends on CPU_SB1
        help
          Instead of using the CPU to zero and copy pages, use a Data Mover
          channel.  These DMA channels are otherwise unused by the standard
          SiByte Linux port.  Seems to give a small performance benefit.

config CPU_HAS_PREFETCH
        bool

config CPU_GENERIC_DUMP_TLB
        bool
        default y if !CPU_R3000

config MIPS_FP_SUPPORT
        bool "Floating Point support" if EXPERT
        default y
        help
          Select y to include support for floating point in the kernel
          including initialization of FPU hardware, FP context save & restore
          and emulation of an FPU where necessary. Without this support any
          userland program attempting to use floating point instructions will
          receive a SIGILL.

          If you know that your userland will not attempt to use floating point
          instructions then you can say n here to shrink the kernel a little.

          If unsure, say y.

config CPU_R2300_FPU
        bool
        depends on MIPS_FP_SUPPORT
        default y if CPU_R3000

config CPU_R3K_TLB
        bool

config CPU_R4K_FPU
        bool
        depends on MIPS_FP_SUPPORT
        default y if !CPU_R2300_FPU

config CPU_R4K_CACHE_TLB
        bool
        default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)

config MIPS_MT_SMP
        bool "MIPS MT SMP support (1 TC on each available VPE)"
        default y
        depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
        select CPU_MIPSR2_IRQ_VI
        select CPU_MIPSR2_IRQ_EI
        select SYNC_R4K
        select MIPS_MT
        select SMP
        select SMP_UP
        select SYS_SUPPORTS_SMP
        select SYS_SUPPORTS_SCHED_SMT
        select MIPS_PERF_SHARED_TC_COUNTERS
        help
          This is a kernel model which is known as SMVP. This is supported
          on cores with the MT ASE and uses the available VPEs to implement
          virtual processors which supports SMP. This is equivalent to the
          Intel Hyperthreading feature. For further information go to
          <http://www.imgtec.com/mips/mips-multithreading.asp>.

config MIPS_MT
        bool

config SCHED_SMT
        bool "SMT (multithreading) scheduler support"
        depends on SYS_SUPPORTS_SCHED_SMT
        default n
        help
          SMT scheduler support improves the CPU scheduler's decision making
          when dealing with MIPS MT enabled cores at a cost of slightly
          increased overhead in some places. If unsure say N here.

config SYS_SUPPORTS_SCHED_SMT
        bool

config SYS_SUPPORTS_MULTITHREADING
        bool

config MIPS_MT_FPAFF
        bool "Dynamic FPU affinity for FP-intensive threads"
        default y
        depends on MIPS_MT_SMP

config MIPSR2_TO_R6_EMULATOR
        bool "MIPS R2-to-R6 emulator"
        depends on CPU_MIPSR6
        depends on MIPS_FP_SUPPORT
        default y
        help
          Choose this option if you want to run non-R6 MIPS userland code.
          Even if you say 'Y' here, the emulator will still be disabled by
          default. You can enable it using the 'mipsr2emu' kernel option.
          The only reason this is a build-time option is to save ~14K from the
          final kernel image.

config SYS_SUPPORTS_VPE_LOADER
        bool
        depends on SYS_SUPPORTS_MULTITHREADING
        help
          Indicates that the platform supports the VPE loader, and provides
          physical_memsize.

config MIPS_VPE_LOADER
        bool "VPE loader support."
        depends on SYS_SUPPORTS_VPE_LOADER && MODULES
        select CPU_MIPSR2_IRQ_VI
        select CPU_MIPSR2_IRQ_EI
        select MIPS_MT
        help
          Includes a loader for loading an elf relocatable object
          onto another VPE and running it.

config MIPS_VPE_LOADER_MT
        bool
        default "y"
        depends on MIPS_VPE_LOADER

config MIPS_VPE_LOADER_TOM
        bool "Load VPE program into memory hidden from linux"
        depends on MIPS_VPE_LOADER
        default y
        help
          The loader can use memory that is present but has been hidden from
          Linux using the kernel command line option "mem=xxMB". It's up to
          you to ensure the amount you put in the option and the space your
          program requires is less or equal to the amount physically present.

config MIPS_VPE_APSP_API
        bool "Enable support for AP/SP API (RTLX)"
        depends on MIPS_VPE_LOADER

config MIPS_VPE_APSP_API_MT
        bool
        default "y"
        depends on MIPS_VPE_APSP_API

config MIPS_CPS
        bool "MIPS Coherent Processing System support"
        depends on SYS_SUPPORTS_MIPS_CPS
        select MIPS_CM
        select MIPS_CPS_PM if HOTPLUG_CPU
        select SMP
        select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
        select SYS_SUPPORTS_HOTPLUG_CPU
        select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
        select SYS_SUPPORTS_SMP
        select WEAK_ORDERING
        select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
        help
          Select this if you wish to run an SMP kernel across multiple cores
          within a MIPS Coherent Processing System. When this option is
          enabled the kernel will probe for other cores and boot them with
          no external assistance. It is safe to enable this when hardware
          support is unavailable.

config MIPS_CPS_PM
        depends on MIPS_CPS
        bool

config MIPS_CM
        bool
        select MIPS_CPC

config MIPS_CPC
        bool

config SB1_PASS_2_WORKAROUNDS
        bool
        depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
        default y

config SB1_PASS_2_1_WORKAROUNDS
        bool
        depends on CPU_SB1 && CPU_SB1_PASS_2
        default y

choice
        prompt "SmartMIPS or microMIPS ASE support"

config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
        bool "None"
        help
          Select this if you want neither microMIPS nor SmartMIPS support

config CPU_HAS_SMARTMIPS
        depends on SYS_SUPPORTS_SMARTMIPS
        bool "SmartMIPS"
        help
          SmartMIPS is a extension of the MIPS32 architecture aimed at
          increased security at both hardware and software level for
          smartcards.  Enabling this option will allow proper use of the
          SmartMIPS instructions by Linux applications.  However a kernel with
          this option will not work on a MIPS core without SmartMIPS core.  If
          you don't know you probably don't have SmartMIPS and should say N
          here.

config CPU_MICROMIPS
        depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
        bool "microMIPS"
        help
          When this option is enabled the kernel will be built using the
          microMIPS ISA

endchoice

config CPU_HAS_MSA
        bool "Support for the MIPS SIMD Architecture"
        depends on CPU_SUPPORTS_MSA
        depends on MIPS_FP_SUPPORT
        depends on 64BIT || MIPS_O32_FP64_SUPPORT
        help
          MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
          and a set of SIMD instructions to operate on them. When this option
          is enabled the kernel will support allocating & switching MSA
          vector register contexts. If you know that your kernel will only be
          running on CPUs which do not support MSA or that your userland will
          not be making use of it then you may wish to say N here to reduce
          the size & complexity of your kernel.

          If unsure, say Y.

config CPU_HAS_WB
        bool

config XKS01
        bool

config CPU_HAS_DIEI
        depends on !CPU_DIEI_BROKEN
        bool

config CPU_DIEI_BROKEN
        bool

config CPU_HAS_RIXI
        bool

config CPU_NO_LOAD_STORE_LR
        bool
        help
          CPU lacks support for unaligned load and store instructions:
          LWL, LWR, SWL, SWR (Load/store word left/right).
          LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
          systems).

#
# Vectored interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_VI
        bool

#
# Extended interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_EI
        bool

config CPU_HAS_SYNC
        bool
        depends on !CPU_R3000
        default y

#
# CPU non-features
#

# Work around the "daddi" and "daddiu" CPU errata:
#
# - The `daddi' instruction fails to trap on overflow.
#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
#   erratum #23
#
# - The `daddiu' instruction can produce an incorrect result.
#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
#   erratum #41
#   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
#   #15
#   "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
#   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
config CPU_DADDI_WORKAROUNDS
        bool

# Work around certain R4000 CPU errata (as implemented by GCC):
#
# - A double-word or a variable shift may give an incorrect result
#   if executed immediately after starting an integer division:
#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
#   erratum #28
#   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
#   #19
#
# - A double-word or a variable shift may give an incorrect result
#   if executed while an integer multiplication is in progress:
#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
#   errata #16 & #28
#
# - An integer division may give an incorrect result if started in
#   a delay slot of a taken branch or a jump:
#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
#   erratum #52
config CPU_R4000_WORKAROUNDS
        bool
        select CPU_R4400_WORKAROUNDS

# Work around certain R4400 CPU errata (as implemented by GCC):
#
# - A double-word or a variable shift may give an incorrect result
#   if executed immediately after starting an integer division:
#   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
#   "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
config CPU_R4400_WORKAROUNDS
        bool

config CPU_R4X00_BUGS64
        bool
        default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

config MIPS_ASID_SHIFT
        int
        default 6 if CPU_R3000
        default 0

config MIPS_ASID_BITS
        int
        default 0 if MIPS_ASID_BITS_VARIABLE
        default 6 if CPU_R3000
        default 8

config MIPS_ASID_BITS_VARIABLE
        bool

config MIPS_CRC_SUPPORT
        bool

# R4600 erratum.  Due to the lack of errata information the exact
# technical details aren't known.  I've experimentally found that disabling
# interrupts during indexed I-cache flushes seems to be sufficient to deal
# with the issue.
config WAR_R4600_V1_INDEX_ICACHEOP
        bool

# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
#
#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
#      executed if there is no other dcache activity. If the dcache is
#      accessed for another instruction immediately preceding when these
#      cache instructions are executing, it is possible that the dcache
#      tag match outputs used by these cache instructions will be
#      incorrect. These cache instructions should be preceded by at least
#      four instructions that are not any kind of load or store
#      instruction.
#
#      This is not allowed:    lw
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
#
#      This is allowed:        lw
#                              nop
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
config WAR_R4600_V1_HIT_CACHEOP
        bool

# Writeback and invalidate the primary cache dcache before DMA.
#
# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
# operate correctly if the internal data cache refill buffer is empty.  These
# CACHE instructions should be separated from any potential data cache miss
# by a load instruction to an uncached address to empty the response buffer."
# (Revision 2.0 device errata from IDT available on https://www.idt.com/
# in .pdf format.)
config WAR_R4600_V2_HIT_CACHEOP
        bool

# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
# the line which this instruction itself exists, the following
# operation is not guaranteed."
#
# Workaround: do two phase flushing for Index_Invalidate_I
config WAR_TX49XX_ICACHE_INDEX_INV
        bool

# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
# opposes it being called that) where invalid instructions in the same
# I-cache line worth of instructions being fetched may case spurious
# exceptions.
config WAR_ICACHE_REFILLS
        bool

# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
# may cause ll / sc and lld / scd sequences to execute non-atomically.
config WAR_R10000_LLSC
        bool

# 34K core erratum: "Problems Executing the TLBR Instruction"
config WAR_MIPS34K_MISSED_ITLB
        bool

#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
#   caches such as R3000, SB1, R7000 or those that look like they're virtually
#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
#   moment we protect the user and offer the highmem option only on machines
#   where it's known to be safe.  This will not offer highmem on a few systems
#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
#   indexed CPUs but we're playing safe.
# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
#   know they might have memory configurations that could make use of highmem
#   support.
#
config HIGHMEM
        bool "High Memory Support"
        depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
        select KMAP_LOCAL

config CPU_SUPPORTS_HIGHMEM
        bool

config SYS_SUPPORTS_HIGHMEM
        bool

config SYS_SUPPORTS_SMARTMIPS
        bool

config SYS_SUPPORTS_MICROMIPS
        bool

config SYS_SUPPORTS_MIPS16
        bool
        help
          This option must be set if a kernel might be executed on a MIPS16-
          enabled CPU even if MIPS16 is not actually being used.  In other
          words, it makes the kernel MIPS16-tolerant.

config CPU_SUPPORTS_MSA
        bool

config ARCH_FLATMEM_ENABLE
        def_bool y
        depends on !NUMA && !CPU_LOONGSON2EF

config ARCH_SPARSEMEM_ENABLE
        bool

config NUMA
        bool "NUMA Support"
        depends on SYS_SUPPORTS_NUMA
        select SMP
        select HAVE_SETUP_PER_CPU_AREA
        select NEED_PER_CPU_EMBED_FIRST_CHUNK
        help
          Say Y to compile the kernel to support NUMA (Non-Uniform Memory
          Access).  This option improves performance on systems with more
          than two nodes; on two node systems it is generally better to
          leave it disabled; on single node systems leave this option
          disabled.

config SYS_SUPPORTS_NUMA
        bool

config HAVE_ARCH_NODEDATA_EXTENSION
        bool

config RELOCATABLE
        bool "Relocatable kernel"
        depends on SYS_SUPPORTS_RELOCATABLE
        depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
                   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
                   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
                   CPU_P5600 || CAVIUM_OCTEON_SOC || \
                   CPU_LOONGSON64
        help
          This builds a kernel image that retains relocation information
          so it can be loaded someplace besides the default 1MB.
          The relocations make the kernel binary about 15% larger,
          but are discarded at runtime

config RELOCATION_TABLE_SIZE
        hex "Relocation table size"
        depends on RELOCATABLE
        range 0x0 0x01000000
        default "0x00200000" if CPU_LOONGSON64
        default "0x00100000"
        help
          A table of relocation data will be appended to the kernel binary
          and parsed at boot to fix up the relocated kernel.

          This option allows the amount of space reserved for the table to be
          adjusted, although the default of 1Mb should be ok in most cases.

          The build will fail and a valid size suggested if this is too small.

          If unsure, leave at the default value.

config RANDOMIZE_BASE
        bool "Randomize the address of the kernel image"
        depends on RELOCATABLE
        help
          Randomizes the physical and virtual address at which the
          kernel image is loaded, as a security feature that
          deters exploit attempts relying on knowledge of the location
          of kernel internals.

          Entropy is generated using any coprocessor 0 registers available.

          The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.

          If unsure, say N.

config RANDOMIZE_BASE_MAX_OFFSET
        hex "Maximum kASLR offset" if EXPERT
        depends on RANDOMIZE_BASE
        range 0x0 0x40000000 if EVA || 64BIT
        range 0x0 0x08000000
        default "0x01000000"
        help
          When kASLR is active, this provides the maximum offset that will
          be applied to the kernel image. It should be set according to the
          amount of physical RAM available in the target system minus
          PHYSICAL_START and must be a power of 2.

          This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
          EVA or 64-bit. The default is 16Mb.

config NODES_SHIFT
        int
        default "6"
        depends on NUMA

config HW_PERF_EVENTS
        bool "Enable hardware performance counter support for perf events"
        depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
        default y
        help
          Enable hardware performance counter support for perf events. If
          disabled, perf events will use software events only.

config DMI
        bool "Enable DMI scanning"
        depends on MACH_LOONGSON64
        select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
        default y
        help
          Enabled scanning of DMI to identify machine quirks. Say Y
          here unless you have verified that your setup is not
          affected by entries in the DMI blacklist. Required by PNP
          BIOS code.

config SMP
        bool "Multi-Processing support"
        depends on SYS_SUPPORTS_SMP
        help
          This enables support for systems with more than one CPU. If you have
          a system with only one CPU, say N. If you have a system with more
          than one CPU, say Y.

          If you say N here, the kernel will run on uni- and multiprocessor
          machines, but will use only one CPU of a multiprocessor machine. If
          you say Y here, the kernel will run on many, but not all,
          uniprocessor machines. On a uniprocessor machine, the kernel
          will run faster if you say N here.

          People using multiprocessor machines who say Y here should also say
          Y to "Enhanced Real Time Clock Support", below.

          See also the SMP-HOWTO available at
          <https://www.tldp.org/docs.html#howto>.

          If you don't know what to do here, say N.

config HOTPLUG_CPU
        bool "Support for hot-pluggable CPUs"
        depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
        help
          Say Y here to allow turning CPUs off and on. CPUs can be
          controlled through /sys/devices/system/cpu.
          (Note: power management support will enable this option
            automatically on SMP systems. )
          Say N if you want to disable CPU hotplug.

config SMP_UP
        bool

config SYS_SUPPORTS_MIPS_CPS
        bool

config SYS_SUPPORTS_SMP
        bool

config NR_CPUS_DEFAULT_4
        bool

config NR_CPUS_DEFAULT_8
        bool

config NR_CPUS_DEFAULT_16
        bool

config NR_CPUS_DEFAULT_32
        bool

config NR_CPUS_DEFAULT_64
        bool

config NR_CPUS
        int "Maximum number of CPUs (2-256)"
        range 2 256
        depends on SMP
        default "4" if NR_CPUS_DEFAULT_4
        default "8" if NR_CPUS_DEFAULT_8
        default "16" if NR_CPUS_DEFAULT_16
        default "32" if NR_CPUS_DEFAULT_32
        default "64" if NR_CPUS_DEFAULT_64
        help
          This allows you to specify the maximum number of CPUs which this
          kernel will support.  The maximum supported value is 32 for 32-bit
          kernel and 64 for 64-bit kernels; the minimum value which makes
          sense is 1 for Qemu (useful only for kernel debugging purposes)
          and 2 for all others.

          This is purely to save memory - each supported CPU adds
          approximately eight kilobytes to the kernel image.  For best
          performance should round up your number of processors to the next
          power of two.

config MIPS_PERF_SHARED_TC_COUNTERS
        bool

config MIPS_NR_CPU_NR_MAP_1024
        bool

config MIPS_NR_CPU_NR_MAP
        int
        depends on SMP
        default 1024 if MIPS_NR_CPU_NR_MAP_1024
        default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024

#
# Timer Interrupt Frequency Configuration
#

choice
        prompt "Timer frequency"
        default HZ_250
        help
          Allows the configuration of the timer frequency.

        config HZ_24
                bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_48
                bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_100
                bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_128
                bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_250
                bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_256
                bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_1000
                bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ

        config HZ_1024
                bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ

endchoice

config SYS_SUPPORTS_24HZ
        bool

config SYS_SUPPORTS_48HZ
        bool

config SYS_SUPPORTS_100HZ
        bool

config SYS_SUPPORTS_128HZ
        bool

config SYS_SUPPORTS_250HZ
        bool

config SYS_SUPPORTS_256HZ
        bool

config SYS_SUPPORTS_1000HZ
        bool

config SYS_SUPPORTS_1024HZ
        bool

config SYS_SUPPORTS_ARBIT_HZ
        bool
        default y if !SYS_SUPPORTS_24HZ && \
                     !SYS_SUPPORTS_48HZ && \
                     !SYS_SUPPORTS_100HZ && \
                     !SYS_SUPPORTS_128HZ && \
                     !SYS_SUPPORTS_250HZ && \
                     !SYS_SUPPORTS_256HZ && \
                     !SYS_SUPPORTS_1000HZ && \
                     !SYS_SUPPORTS_1024HZ

config HZ
        int
        default 24 if HZ_24
        default 48 if HZ_48
        default 100 if HZ_100
        default 128 if HZ_128
        default 250 if HZ_250
        default 256 if HZ_256
        default 1000 if HZ_1000
        default 1024 if HZ_1024

config SCHED_HRTICK
        def_bool HIGH_RES_TIMERS

config KEXEC
        bool "Kexec system call"
        select KEXEC_CORE
        help
          kexec is a system call that implements the ability to shutdown your
          current kernel, and to start another kernel.  It is like a reboot
          but it is independent of the system firmware.   And like a reboot
          you can start any kernel with it, not just Linux.

          The name comes from the similarity to the exec system call.

          It is an ongoing process to be certain the hardware in a machine
          is properly shutdown, so do not be surprised if this code does not
          initially work for you.  As of this writing the exact hardware
          interface is strongly in flux, so no good recommendation can be
          made.

config CRASH_DUMP
        bool "Kernel crash dumps"
        help
          Generate crash dump after being started by kexec.
          This should be normally only set in special crash dump kernels
          which are loaded in the main kernel with kexec-tools into
          a specially reserved region and then later executed after
          a crash by kdump/kexec. The crash dump kernel must be compiled
          to a memory address not used by the main kernel or firmware using
          PHYSICAL_START.

config PHYSICAL_START
        hex "Physical address where the kernel is loaded"
        default "0xffffffff84000000"
        depends on CRASH_DUMP
        help
          This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
          If you plan to use kernel for capturing the crash dump change
          this value to start of the reserved region (the "X" value as
          specified in the "crashkernel=YM@XM" command line boot parameter
          passed to the panic-ed kernel).

config MIPS_O32_FP64_SUPPORT
        bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
        depends on 32BIT || MIPS32_O32
        help
          When this is enabled, the kernel will support use of 64-bit floating
          point registers with binaries using the O32 ABI along with the
          EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
          32-bit MIPS systems this support is at the cost of increasing the
          size and complexity of the compiled FPU emulator. Thus if you are
          running a MIPS32 system and know that none of your userland binaries
          will require 64-bit floating point, you may wish to reduce the size
          of your kernel & potentially improve FP emulation performance by
          saying N here.

          Although binutils currently supports use of this flag the details
          concerning its effect upon the O32 ABI in userland are still being
          worked on. In order to avoid userland becoming dependent upon current
          behaviour before the details have been finalised, this option should
          be considered experimental and only enabled by those working upon
          said details.

          If unsure, say N.

config USE_OF
        bool
        select OF
        select OF_EARLY_FLATTREE
        select IRQ_DOMAIN

config UHI_BOOT
        bool

config BUILTIN_DTB
        bool

choice
        prompt "Kernel appended dtb support" if USE_OF
        default MIPS_NO_APPENDED_DTB

        config MIPS_NO_APPENDED_DTB
                bool "None"
                help
                  Do not enable appended dtb support.

        config MIPS_ELF_APPENDED_DTB
                bool "vmlinux"
                help
                  With this option, the boot code will look for a device tree binary
                  DTB) included in the vmlinux ELF section .appended_dtb. By default
                  it is empty and the DTB can be appended using binutils command
                  objcopy:

                    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux

                  This is meant as a backward compatibility convenience for those
                  systems with a bootloader that can't be upgraded to accommodate
                  the documented boot protocol using a device tree.

        config MIPS_RAW_APPENDED_DTB
                bool "vmlinux.bin or vmlinuz.bin"
                help
                  With this option, the boot code will look for a device tree binary
                  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
                  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).

                  This is meant as a backward compatibility convenience for those
                  systems with a bootloader that can't be upgraded to accommodate
                  the documented boot protocol using a device tree.

                  Beware that there is very little in terms of protection against
                  this option being confused by leftover garbage in memory that might
                  look like a DTB header after a reboot if no actual DTB is appended
                  to vmlinux.bin.  Do not leave this option active in a production kernel
                  if you don't intend to always append a DTB.
endchoice

choice
        prompt "Kernel command line type" if !CMDLINE_OVERRIDE
        default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
                                         !MACH_LOONGSON64 && !MIPS_MALTA && \
                                         !CAVIUM_OCTEON_SOC
        default MIPS_CMDLINE_FROM_BOOTLOADER

        config MIPS_CMDLINE_FROM_DTB
                depends on USE_OF
                bool "Dtb kernel arguments if available"

        config MIPS_CMDLINE_DTB_EXTEND
                depends on USE_OF
                bool "Extend dtb kernel arguments with bootloader arguments"

        config MIPS_CMDLINE_FROM_BOOTLOADER
                bool "Bootloader kernel arguments if available"

        config MIPS_CMDLINE_BUILTIN_EXTEND
                depends on CMDLINE_BOOL
                bool "Extend builtin kernel arguments with bootloader arguments"
endchoice

endmenu

config LOCKDEP_SUPPORT
        bool
        default y

config STACKTRACE_SUPPORT
        bool
        default y

config PGTABLE_LEVELS
        int
        default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
        default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
        default 2

config MIPS_AUTO_PFN_OFFSET
        bool

menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

config PCI_DRIVERS_GENERIC
        select PCI_DOMAINS_GENERIC if PCI
        bool

config PCI_DRIVERS_LEGACY
        def_bool !PCI_DRIVERS_GENERIC
        select NO_GENERIC_PCI_IOPORT_MAP
        select PCI_DOMAINS if PCI

#
# ISA support is now enabled via select.  Too many systems still have the one
# or other ISA chip on the board that users don't know about so don't expect
# users to choose the right thing ...
#
config ISA
        bool

config TC
        bool "TURBOchannel support"
        depends on MACH_DECSTATION
        help
          TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
          processors.  TURBOchannel programming specifications are available
          at:
          <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
          and:
          <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
          Linux driver support status is documented at:
          <http://www.linux-mips.org/wiki/DECstation>

config MMU
        bool
        default y

config ARCH_MMAP_RND_BITS_MIN
        default 12 if 64BIT
        default 8

config ARCH_MMAP_RND_BITS_MAX
        default 18 if 64BIT
        default 15

config ARCH_MMAP_RND_COMPAT_BITS_MIN
        default 8

config ARCH_MMAP_RND_COMPAT_BITS_MAX
        default 15

config I8253
        bool
        select CLKSRC_I8253
        select CLKEVT_I8253
        select MIPS_EXTERNAL_TIMER
endmenu

config TRAD_SIGNALS
        bool

config MIPS32_COMPAT
        bool

config COMPAT
        bool

config MIPS32_O32
        bool "Kernel support for o32 binaries"
        depends on 64BIT
        select ARCH_WANT_OLD_COMPAT_IPC
        select COMPAT
        select MIPS32_COMPAT
        help
          Select this option if you want to run o32 binaries.  These are pure
          32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
          existing binaries are in this format.

          If unsure, say Y.

config MIPS32_N32
        bool "Kernel support for n32 binaries"
        depends on 64BIT
        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
        select COMPAT
        select MIPS32_COMPAT
        help
          Select this option if you want to run n32 binaries.  These are
          64-bit binaries using 32-bit quantities for addressing and certain
          data that would normally be 64-bit.  They are used in special
          cases.

          If unsure, say N.

config CC_HAS_MNO_BRANCH_LIKELY
        def_bool y
        depends on $(cc-option,-mno-branch-likely)

# https://github.com/llvm/llvm-project/issues/61045
config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
        def_bool y if CC_IS_CLANG

menu "Power management options"

config ARCH_HIBERNATION_POSSIBLE
        def_bool y
        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP

config ARCH_SUSPEND_POSSIBLE
        def_bool y
        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP

source "kernel/power/Kconfig"

endmenu

config MIPS_EXTERNAL_TIMER
        bool

menu "CPU Power Management"

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
source "drivers/cpufreq/Kconfig"
endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER

source "drivers/cpuidle/Kconfig"

endmenu

source "arch/mips/kvm/Kconfig"

source "arch/mips/vdso/Kconfig"