v4.19.13 snapshot.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
new file mode 100644
index 0000000..3551199
--- /dev/null
+++ b/arch/mips/Kconfig
@@ -0,0 +1,3197 @@
+# SPDX-License-Identifier: GPL-2.0
+config MIPS
+ bool
+ default y
+ select ARCH_BINFMT_ELF_STATE
+ select ARCH_CLOCKSOURCE_DATA
+ select ARCH_DISCARD_MEMBLOCK
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+ select ARCH_SUPPORTS_UPROBES
+ select ARCH_USE_BUILTIN_BSWAP
+ select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+ select ARCH_USE_QUEUED_RWLOCKS
+ select ARCH_USE_QUEUED_SPINLOCKS
+ select ARCH_WANT_IPC_PARSE_VERSION
+ select BUILDTIME_EXTABLE_SORT
+ select CLONE_BACKWARDS
+ select CPU_PM if CPU_IDLE
+ select DMA_DIRECT_OPS
+ select GENERIC_ATOMIC64 if !64BIT
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_CMOS_UPDATE
+ select GENERIC_CPU_AUTOPROBE
+ select GENERIC_IRQ_PROBE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_LIB_ASHLDI3
+ select GENERIC_LIB_ASHRDI3
+ select GENERIC_LIB_CMPDI2
+ select GENERIC_LIB_LSHRDI3
+ select GENERIC_LIB_UCMPDI2
+ select GENERIC_PCI_IOMAP
+ select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_TIME_VSYSCALL
+ select HANDLE_DOMAIN_IRQ
+ select HAVE_ARCH_COMPILER_H
+ select HAVE_ARCH_JUMP_LABEL
+ select HAVE_ARCH_KGDB
+ 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 && 64BIT
+ select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
+ select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
+ select HAVE_CONTEXT_TRACKING
+ select HAVE_COPY_THREAD_TLS
+ select HAVE_C_RECORDMCOUNT
+ select HAVE_DEBUG_KMEMLEAK
+ select HAVE_DEBUG_STACKOVERFLOW
+ select HAVE_DMA_CONTIGUOUS
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_EXIT_THREAD
+ select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_TRACER
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_IDE
+ select HAVE_IRQ_EXIT_ON_IRQ_STACK
+ select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_KPROBES
+ select HAVE_KRETPROBES
+ select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
+ select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_NMI
+ select HAVE_OPROFILE
+ select HAVE_PERF_EVENTS
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_RSEQ
+ select HAVE_STACKPROTECTOR
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
+ select IRQ_FORCED_THREADING
+ select MODULES_USE_ELF_RELA if MODULES && 64BIT
+ select MODULES_USE_ELF_REL if MODULES
+ select PERF_USE_VMALLOC
+ select RTC_LIB if !MACH_LOONGSON64
+ select SYSCTL_EXCEPTION_TRACE
+ select VIRT_TO_BUS
+
+menu "Machine selection"
+
+choice
+ prompt "System type"
+ default MIPS_GENERIC
+
+config MIPS_GENERIC
+ bool "Generic board-agnostic MIPS kernel"
+ select BOOT_RAW
+ select BUILTIN_DTB
+ select CEVT_R4K
+ select CLKSRC_MIPS_GIC
+ select COMMON_CLK
+ select CPU_MIPSR2_IRQ_VI
+ select CPU_MIPSR2_IRQ_EI
+ select CSRC_R4K
+ select DMA_PERDEV_COHERENT
+ select HW_HAS_PCI
+ select IRQ_MIPS_CPU
+ select LIBFDT
+ 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 PINCTRL
+ 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_MIPS_CPS
+ select SYS_SUPPORTS_MIPS16
+ select SYS_SUPPORTS_MULTITHREADING
+ select SYS_SUPPORTS_RELOCATABLE
+ select SYS_SUPPORTS_SMARTMIPS
+ 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_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
+ 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 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
+ select HAVE_CLK
+ 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 HAVE_CLK
+ select COMMON_CLK
+ select CLKDEV_LOOKUP
+ select IRQ_MIPS_CPU
+ select MIPS_MACHINE
+ 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_SYNC_DMA_FOR_CPU_ALL
+ select ARCH_HAS_PHYS_TO_DMA
+ 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
+ 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 HW_HAS_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 SWAP_IO_SPACE
+ select GPIOLIB
+ select HAVE_CLK
+ select MIPS_L1_CACHE_SHIFT_4
+ select CLKDEV_LOOKUP
+ 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 HW_HAS_PCI
+ select I8253
+ select I8259
+ select IRQ_MIPS_CPU
+ select IRQ_GT641XX
+ select PCI_GT64XXX_PCI0
+ select PCI
+ 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 ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_MIGHT_HAVE_PC_SERIO
+ 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
+ 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
+ bool "Ingenic SoC based machines"
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_ZBOOT_UART16550
+ select DMA_NONCOHERENT
+ select IRQ_MIPS_CPU
+ select PINCTRL
+ select GPIOLIB
+ select COMMON_CLK
+ select GENERIC_IRQ_CHIP
+ select BUILTIN_DTB
+ select USE_OF
+ select LIBFDT
+
+config LANTIQ
+ bool "Lantiq based platforms"
+ select DMA_NONCOHERENT
+ select IRQ_MIPS_CPU
+ select CEVT_R4K
+ select CSRC_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 SYS_HAS_EARLY_PRINTK
+ select GPIOLIB
+ select SWAP_IO_SPACE
+ select BOOT_RAW
+ select CLKDEV_LOOKUP
+ select USE_OF
+ select PINCTRL
+ select PINCTRL_LANTIQ
+ select ARCH_HAS_RESET_CONTROLLER
+ select RESET_CONTROLLER
+
+config LASAT
+ bool "LASAT Networks platforms"
+ select CEVT_R4K
+ select CRC32
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select SYS_HAS_EARLY_PRINTK
+ select HW_HAS_PCI
+ select IRQ_MIPS_CPU
+ select PCI_GT64XXX_PCI0
+ select MIPS_NILE4
+ select R5000_CPU_SCACHE
+ select SYS_HAS_CPU_R5000
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config MACH_LOONGSON32
+ bool "Loongson-1 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_LOONGSON64
+ bool "Loongson-2/3 family of machines"
+ select SYS_SUPPORTS_ZBOOT
+ help
+ This enables the support of Loongson-2/3 family of machines.
+
+ Loongson-2 is a family of single-core CPUs and Loongson-3 is a
+ family of multi-core CPUs. They are both 64-bit general-purpose
+ MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
+ of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
+ in the People's Republic of China. The chief architect is Professor
+ Weiwu Hu.
+
+config MACH_PISTACHIO
+ bool "IMG Pistachio SoC based boards"
+ select BOOT_ELF32
+ select BOOT_RAW
+ select CEVT_R4K
+ select CLKSRC_MIPS_GIC
+ select COMMON_CLK
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select GPIOLIB
+ select IRQ_MIPS_CPU
+ select LIBFDT
+ select MFD_SYSCON
+ select MIPS_CPU_SCACHE
+ select MIPS_GIC
+ select PINCTRL
+ select REGULATOR
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_MIPS_CPS
+ select SYS_SUPPORTS_MULTITHREADING
+ select SYS_SUPPORTS_RELOCATABLE
+ select SYS_SUPPORTS_ZBOOT
+ select SYS_HAS_EARLY_PRINTK
+ select USE_GENERIC_EARLY_PRINTK_8250
+ select USE_OF
+ help
+ This enables support for the IMG Pistachio SoC platform.
+
+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 CSRC_R4K
+ select CLKSRC_MIPS_GIC
+ select COMMON_CLK
+ select DMA_MAYBE_COHERENT
+ select GENERIC_ISA_DMA
+ select HAVE_PCSPKR_PLATFORM
+ select IRQ_MIPS_CPU
+ select MIPS_GIC
+ select HW_HAS_PCI
+ select I8253
+ select I8259
+ select MIPS_BONITO64
+ select MIPS_CPU_SCACHE
+ select MIPS_L1_CACHE_SHIFT_6
+ select PCI_GT64XXX_PCI0
+ select MIPS_MSC
+ 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_MIPS_CMP
+ select SYS_SUPPORTS_MIPS_CPS
+ select SYS_SUPPORTS_MIPS16
+ select SYS_SUPPORTS_MULTITHREADING
+ select SYS_SUPPORTS_SMARTMIPS
+ select SYS_SUPPORTS_VPE_LOADER
+ select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_RELOCATABLE
+ select USE_OF
+ select LIBFDT
+ select ZONE_DMA32 if 64BIT
+ select BUILTIN_DTB
+ select LIBFDT
+ 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 NEC_MARKEINS
+ bool "NEC EMMA2RH Mark-eins board"
+ select SOC_EMMA2RH
+ select HW_HAS_PCI
+ help
+ This enables support for the NEC Electronics Mark-eins boards.
+
+config MACH_VR41XX
+ bool "NEC VR4100 series based machines"
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_HAS_CPU_VR41XX
+ select SYS_SUPPORTS_MIPS16
+ select GPIOLIB
+
+config NXP_STB220
+ bool "NXP STB220 board"
+ select SOC_PNX833X
+ help
+ Support for NXP Semiconductors STB220 Development Board.
+
+config NXP_STB225
+ bool "NXP 225 board"
+ select SOC_PNX833X
+ select SOC_PNX8335
+ help
+ Support for NXP Semiconductors STB225 Development Board.
+
+config PMC_MSP
+ bool "PMC-Sierra MSP chipsets"
+ select CEVT_R4K
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select SWAP_IO_SPACE
+ select NO_EXCEPT_FILL
+ select BOOT_RAW
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_MIPS16
+ select IRQ_MIPS_CPU
+ select SERIAL_8250
+ select SERIAL_8250_CONSOLE
+ select USB_EHCI_BIG_ENDIAN_MMIO
+ select USB_EHCI_BIG_ENDIAN_DESC
+ help
+ This adds support for the PMC-Sierra family of Multi-Service
+ Processor System-On-A-Chips. These parts include a number
+ of integrated peripherals, interfaces and DSPs in addition to
+ a variety of MIPS cores.
+
+config RALINK
+ bool "Ralink based machines"
+ select CEVT_R4K
+ select CSRC_R4K
+ select BOOT_RAW
+ select DMA_NONCOHERENT
+ select IRQ_MIPS_CPU
+ select USE_OF
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_MIPS16
+ select SYS_HAS_EARLY_PRINTK
+ select CLKDEV_LOOKUP
+ select ARCH_HAS_RESET_CONTROLLER
+ select RESET_CONTROLLER
+
+config SGI_IP22
+ bool "SGI IP22 (Indy/Indigo2)"
+ 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 HW_HAS_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
+ #
+ # Disable EARLY_PRINTK for now since it leads to overwritten prom
+ # memory during early boot on some machines.
+ #
+ # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
+ # for a more details discussion
+ #
+ # select SYS_HAS_EARLY_PRINTK
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ 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 FW_ARC
+ select FW_ARC64
+ select BOOT_ELF64
+ select DEFAULT_SGI_PARTITION
+ select SYS_HAS_EARLY_PRINTK
+ select HW_HAS_PCI
+ select NR_CPUS_DEFAULT_64
+ select SYS_HAS_CPU_R10000
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_NUMA
+ select SYS_SUPPORTS_SMP
+ select MIPS_L1_CACHE_SHIFT_7
+ 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 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 HW_HAS_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
+ #
+ # Disable EARLY_PRINTK for now since it leads to overwritten prom
+ # memory during early boot on some machines.
+ #
+ # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
+ # for a more details discussion
+ #
+ # select SYS_HAS_EARLY_PRINTK
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ 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_IP32
+ bool "SGI IP32 (O2)"
+ 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 HW_HAS_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
+ help
+ If you want this kernel to run on SGI O2 workstation, say Y here.
+
+config SIBYTE_CRHINE
+ bool "Sibyte BCM91120C-CRhine"
+ select BOOT_ELF32
+ select SIBYTE_BCM1120
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_SB1
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
+config SIBYTE_CARMEL
+ bool "Sibyte BCM91120x-Carmel"
+ select BOOT_ELF32
+ select SIBYTE_BCM1120
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_SB1
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+
+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_BCM1125H
+ 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
+
+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
+
+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
+
+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
+
+config SNI_RM
+ bool "SNI RM200/300/400"
+ 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_PCSPKR_PLATFORM
+ select HW_HAS_EISA
+ select HW_HAS_PCI
+ select IRQ_MIPS_CPU
+ select I8253
+ select I8259
+ select ISA
+ 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
+ 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_TX39XX
+ bool "Toshiba TX39 series based machines"
+
+config MACH_TX49XX
+ bool "Toshiba TX49 series based machines"
+
+config MIKROTIK_RB532
+ bool "Mikrotik RB532 boards"
+ select CEVT_R4K
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select HW_HAS_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 HAS_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 HW_HAS_PCI
+ select ZONE_DMA32
+ select HOLES_IN_ZONE
+ select GPIOLIB
+ select LIBFDT
+ 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_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.
+
+config NLM_XLR_BOARD
+ bool "Netlogic XLR/XLS based systems"
+ select BOOT_ELF32
+ select NLM_COMMON
+ select SYS_HAS_CPU_XLR
+ select SYS_SUPPORTS_SMP
+ select HW_HAS_PCI
+ select SWAP_IO_SPACE
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select PHYS_ADDR_T_64BIT
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
+ select NR_CPUS_DEFAULT_32
+ select CEVT_R4K
+ select CSRC_R4K
+ select IRQ_MIPS_CPU
+ select ZONE_DMA32 if 64BIT
+ select SYNC_R4K
+ select SYS_HAS_EARLY_PRINTK
+ select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_ZBOOT_UART16550
+ help
+ Support for systems based on Netlogic XLR and XLS processors.
+ Say Y here if you have a XLR or XLS based board.
+
+config NLM_XLP_BOARD
+ bool "Netlogic XLP based systems"
+ select BOOT_ELF32
+ select NLM_COMMON
+ select SYS_HAS_CPU_XLP
+ select SYS_SUPPORTS_SMP
+ select HW_HAS_PCI
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select PHYS_ADDR_T_64BIT
+ select GPIOLIB
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
+ select NR_CPUS_DEFAULT_32
+ select CEVT_R4K
+ select CSRC_R4K
+ select IRQ_MIPS_CPU
+ select ZONE_DMA32 if 64BIT
+ select SYNC_R4K
+ select SYS_HAS_EARLY_PRINTK
+ select USE_OF
+ select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_ZBOOT_UART16550
+ help
+ This board is based on Netlogic XLP Processor.
+ Say Y here if you have a XLP based board.
+
+config MIPS_PARAVIRT
+ bool "Para-Virtualized guest system"
+ select CEVT_R4K
+ select CSRC_R4K
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_SMP
+ select NR_CPUS_DEFAULT_4
+ select SYS_HAS_EARLY_PRINTK
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_HAS_CPU_MIPS64_R2
+ select SYS_HAS_CPU_CAVIUM_OCTEON
+ select HW_HAS_PCI
+ select SWAP_IO_SPACE
+ help
+ This option supports guest running under ????
+
+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/jazz/Kconfig"
+source "arch/mips/jz4740/Kconfig"
+source "arch/mips/lantiq/Kconfig"
+source "arch/mips/lasat/Kconfig"
+source "arch/mips/pic32/Kconfig"
+source "arch/mips/pistachio/Kconfig"
+source "arch/mips/pmcs-msp71xx/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/vr41xx/Kconfig"
+source "arch/mips/cavium-octeon/Kconfig"
+source "arch/mips/loongson32/Kconfig"
+source "arch/mips/loongson64/Kconfig"
+source "arch/mips/netlogic/Kconfig"
+source "arch/mips/paravirt/Kconfig"
+
+endmenu
+
+config RWSEM_GENERIC_SPINLOCK
+ bool
+ default y
+
+config RWSEM_XCHGADD_ALGORITHM
+ bool
+
+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
+ 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
+ bool
+
+config DMA_MAYBE_COHERENT
+ select DMA_NONCOHERENT
+ bool
+
+config DMA_PERDEV_COHERENT
+ bool
+ select DMA_MAYBE_COHERENT
+
+config DMA_NONCOHERENT
+ bool
+ select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+ select ARCH_HAS_SYNC_DMA_FOR_CPU
+ select NEED_DMA_MAP_STATE
+ select DMA_NONCOHERENT_MMAP
+ select DMA_NONCOHERENT_CACHE_SYNC
+ select DMA_NONCOHERENT_OPS
+
+config SYS_HAS_EARLY_PRINTK
+ bool
+
+config SYS_SUPPORTS_HOTPLUG_CPU
+ bool
+
+config MIPS_BONITO64
+ bool
+
+config MIPS_MSC
+ bool
+
+config MIPS_NILE4
+ bool
+
+config SYNC_R4K
+ bool
+
+config MIPS_MACHINE
+ def_bool n
+
+config NO_IOPORT_MAP
+ def_bool n
+
+config GENERIC_CSUM
+ bool
+
+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 ISA_DMA_API
+ bool
+
+config HOLES_IN_ZONE
+ 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.
+
+config MIPS_CBPF_JIT
+ def_bool y
+ depends on BPF_JIT && HAVE_CBPF_JIT
+
+config MIPS_EBPF_JIT
+ def_bool y
+ depends on BPF_JIT && HAVE_EBPF_JIT
+
+
+#
+# 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 SYS_SUPPORTS_HUGETLBFS
+ bool
+ depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
+ default y
+
+config MIPS_HUGE_TLB_SUPPORT
+ def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
+
+config IRQ_CPU_RM7K
+ bool
+
+config IRQ_MSP_SLP
+ bool
+
+config IRQ_MSP_CIC
+ bool
+
+config IRQ_TXX9
+ bool
+
+config IRQ_GT641XX
+ bool
+
+config PCI_GT64XXX_PCI0
+ bool
+
+config NO_EXCEPT_FILL
+ bool
+
+config SOC_EMMA2RH
+ bool
+ select CEVT_R4K
+ select CSRC_R4K
+ select DMA_NONCOHERENT
+ select IRQ_MIPS_CPU
+ select SWAP_IO_SPACE
+ select SYS_HAS_CPU_R5500
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_64BIT_KERNEL
+ select SYS_SUPPORTS_BIG_ENDIAN
+
+config SOC_PNX833X
+ bool
+ select CEVT_R4K
+ select CSRC_R4K
+ select IRQ_MIPS_CPU
+ select DMA_NONCOHERENT
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_MIPS16
+ select CPU_MIPSR2_IRQ_VI
+
+config SOC_PNX8335
+ bool
+ select SOC_PNX833X
+
+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 HAVE_STD_PC_SERIAL_PORT
+ bool
+
+config ARC_CONSOLE
+ bool "ARC console support"
+ depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
+
+config ARC_MEMORY
+ bool
+ depends on MACH_JAZZ || SNI_RM || SGI_IP32
+ default y
+
+config ARC_PROMLIB
+ bool
+ depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
+ default y
+
+config FW_ARC64
+ bool
+
+config BOOT_ELF64
+ bool
+
+menu "CPU selection"
+
+choice
+ prompt "CPU type"
+ default CPU_R4X00
+
+config CPU_LOONGSON3
+ bool "Loongson 3 CPU"
+ depends on SYS_HAS_CPU_LOONGSON3
+ select ARCH_HAS_PHYS_TO_DMA
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_HUGEPAGES
+ select WEAK_ORDERING
+ select WEAK_REORDERING_BEYOND_LLSC
+ select MIPS_PGD_C0_CONTEXT
+ select MIPS_L1_CACHE_SHIFT_6
+ select GPIOLIB
+ select SWIOTLB
+ help
+ The Loongson 3 processor implements the MIPS64R2 instruction
+ set with many extensions.
+
+config LOONGSON3_ENHANCEMENT
+ bool "New Loongson 3 CPU Enhancements"
+ default n
+ select CPU_MIPSR2
+ select CPU_HAS_PREFETCH
+ depends on CPU_LOONGSON3
+ help
+ New Loongson 3 CPU (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/DSPv2 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_LOONGSON2E
+ bool "Loongson 2E"
+ depends on SYS_HAS_CPU_LOONGSON2E
+ select CPU_LOONGSON2
+ 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_LOONGSON2
+ select GPIOLIB
+ 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_LOONGSON1
+ 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_LOONGSON1
+ 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_R6
+ bool "MIPS32 Release 6"
+ depends on SYS_HAS_CPU_MIPS32_R6
+ select CPU_HAS_PREFETCH
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_MSA
+ select GENERIC_CSUM
+ 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_R6
+ bool "MIPS64 Release 6"
+ depends on SYS_HAS_CPU_MIPS64_R6
+ select CPU_HAS_PREFETCH
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_MSA
+ select GENERIC_CSUM
+ 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_R3000
+ bool "R3000"
+ depends on SYS_HAS_CPU_R3000
+ select CPU_HAS_WB
+ 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_TX39XX
+ bool "R39XX"
+ depends on SYS_HAS_CPU_TX39XX
+ select CPU_SUPPORTS_32BIT_KERNEL
+
+config CPU_VR41XX
+ bool "R41xx"
+ depends on SYS_HAS_CPU_VR41XX
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ help
+ The options selects support for the NEC VR4100 series of processors.
+ Only choose this option if you have one of these processors as a
+ kernel built with this option will not run on any other type of
+ processor or vice versa.
+
+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_R5432
+ bool "R5432"
+ depends on SYS_HAS_CPU_R5432
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HUGEPAGES
+
+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_R8000
+ bool "R8000"
+ depends on SYS_HAS_CPU_R8000
+ select CPU_HAS_PREFETCH
+ select CPU_SUPPORTS_64BIT_KERNEL
+ help
+ MIPS Technologies R8000 processors. Note these processors are
+ uncommon and the support for them is incomplete.
+
+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
+ help
+ Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
+
+config CPU_XLR
+ bool "Netlogic XLR SoC"
+ depends on SYS_HAS_CPU_XLR
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_HUGEPAGES
+ select WEAK_ORDERING
+ select WEAK_REORDERING_BEYOND_LLSC
+ help
+ Netlogic Microsystems XLR/XLS processors.
+
+config CPU_XLP
+ bool "Netlogic XLP SoC"
+ depends on SYS_HAS_CPU_XLP
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select WEAK_ORDERING
+ select WEAK_REORDERING_BEYOND_LLSC
+ select CPU_HAS_PREFETCH
+ select CPU_MIPSR2
+ select CPU_SUPPORTS_HUGEPAGES
+ select MIPS_ASID_BITS_VARIABLE
+ help
+ Netlogic Microsystems XLP 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_R6
+ 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
+ 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
+
+config SYS_SUPPORTS_ZBOOT_UART16550
+ bool
+ select SYS_SUPPORTS_ZBOOT
+
+config SYS_SUPPORTS_ZBOOT_UART_PROM
+ bool
+ select SYS_SUPPORTS_ZBOOT
+
+config CPU_LOONGSON2
+ bool
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_HUGEPAGES
+ select ARCH_HAS_PHYS_TO_DMA
+
+config CPU_LOONGSON1
+ bool
+ select CPU_MIPS32
+ select CPU_MIPSR1
+ 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_LOONGSON3
+ 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
+ select CPU_SUPPORTS_UNCACHED_ACCELERATED
+
+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_R6
+ bool
+
+config SYS_HAS_CPU_R3000
+ bool
+
+config SYS_HAS_CPU_TX39XX
+ bool
+
+config SYS_HAS_CPU_VR41XX
+ 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_R5432
+ bool
+
+config SYS_HAS_CPU_R5500
+ bool
+
+config SYS_HAS_CPU_NEVADA
+ bool
+
+config SYS_HAS_CPU_R8000
+ 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
+
+config SYS_HAS_CPU_XLR
+ bool
+
+config SYS_HAS_CPU_XLP
+ bool
+
+#
+# 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_R6
+
+config CPU_MIPS64
+ bool
+ default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
+
+#
+# These two indicate the revision of the architecture, either Release 1 or Release 2
+#
+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 MIPS_SPRAM
+
+config CPU_MIPSR6
+ bool
+ default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
+ select CPU_HAS_RIXI
+ select HAVE_ARCH_BITREVERSE
+ select MIPS_ASID_BITS_VARIABLE
+ select MIPS_CRC_SUPPORT
+ select MIPS_SPRAM
+
+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
+config CPU_SUPPORTS_UNCACHED_ACCELERATED
+ bool
+config MIPS_PGD_C0_CONTEXT
+ bool
+ default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
+
+#
+# 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 KVM_GUEST
+ bool "KVM Guest Kernel"
+ depends on BROKEN_ON_SMP
+ help
+ Select this option if building a guest kernel for KVM (Trap & Emulate)
+ mode.
+
+config KVM_GUEST_TIMER_FREQ
+ int "Count/Compare Timer Frequency (MHz)"
+ depends on KVM_GUEST
+ default 100
+ help
+ Set this to non-zero if building a guest kernel for KVM to skip RTC
+ emulation when determining guest CPU Frequency. Instead, the guest's
+ timer frequency is specified directly.
+
+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.
+
+choice
+ prompt "Kernel page size"
+ default PAGE_SIZE_4KB
+
+config PAGE_SIZE_4KB
+ bool "4kB"
+ depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
+ 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_R8000 || 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 R8000 and cnMIPS processors. Note that you will need a
+ suitable Linux distribution to support this.
+
+config PAGE_SIZE_16KB
+ bool "16kB"
+ depends on !CPU_R3000 && !CPU_TX39XX
+ 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 && !CPU_TX39XX
+ 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 FORCE_MAX_ZONEORDER
+ int "Maximum zone order"
+ range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
+ default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
+ range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
+ default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
+ range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
+ default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
+ range 11 64
+ default "11"
+ 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.
+
+ This config option is actually maximum order plus one. For example,
+ a value of 11 means that the largest free memory block is 2^10 pages.
+
+ 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 || CPU_R8000 || CPU_TX39XX)
+
+config CPU_R4K_FPU
+ bool
+ default y if !(CPU_R3000 || CPU_TX39XX)
+
+config CPU_R4K_CACHE_TLB
+ bool
+ default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || 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
+ 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_CMP
+ bool
+ default "y"
+ depends on MIPS_VPE_LOADER && MIPS_CMP
+
+config MIPS_VPE_LOADER_MT
+ bool
+ default "y"
+ depends on MIPS_VPE_LOADER && !MIPS_CMP
+
+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_CMP
+ bool
+ default "y"
+ depends on MIPS_VPE_APSP_API && MIPS_CMP
+
+config MIPS_VPE_APSP_API_MT
+ bool
+ default "y"
+ depends on MIPS_VPE_APSP_API && !MIPS_CMP
+
+config MIPS_CMP
+ bool "MIPS CMP framework support (DEPRECATED)"
+ depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
+ select SMP
+ select SYNC_R4K
+ select SYS_SUPPORTS_SMP
+ select WEAK_ORDERING
+ default n
+ help
+ Select this if you are using a bootloader which implements the "CMP
+ framework" protocol (ie. YAMON) and want your kernel to make use of
+ its ability to start secondary CPUs.
+
+ Unless you have a specific need, you should use CONFIG_MIPS_CPS
+ instead of this.
+
+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
+ 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 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_RIXI
+ bool
+
+#
+# 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
+#
+config CPU_DADDI_WORKAROUNDS
+ bool
+
+config CPU_R4000_WORKAROUNDS
+ bool
+ select CPU_R4400_WORKAROUNDS
+
+config CPU_R4400_WORKAROUNDS
+ bool
+
+config MIPS_ASID_SHIFT
+ int
+ default 6 if CPU_R3000 || CPU_TX39XX
+ default 4 if CPU_R8000
+ default 0
+
+config MIPS_ASID_BITS
+ int
+ default 0 if MIPS_ASID_BITS_VARIABLE
+ default 6 if CPU_R3000 || CPU_TX39XX
+ default 8
+
+config MIPS_ASID_BITS_VARIABLE
+ bool
+
+config MIPS_CRC_SUPPORT
+ 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
+
+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_LOONGSON2
+
+config ARCH_DISCONTIGMEM_ENABLE
+ bool
+ default y if SGI_IP27
+ help
+ Say Y to support efficient handling of discontiguous physical memory,
+ for architectures which are either NUMA (Non-Uniform Memory Access)
+ or have huge holes in the physical address space for other reasons.
+ See <file:Documentation/vm/numa.rst> for more.
+
+config ARCH_SPARSEMEM_ENABLE
+ bool
+ select SPARSEMEM_STATIC
+
+config NUMA
+ bool "NUMA Support"
+ depends on SYS_SUPPORTS_NUMA
+ 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 disable this option
+ disabled.
+
+config SYS_SUPPORTS_NUMA
+ bool
+
+config RELOCATABLE
+ bool "Relocatable kernel"
+ depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
+ 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 "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 NEED_MULTIPLE_NODES
+
+config HW_PERF_EVENTS
+ bool "Enable hardware performance counter support for perf events"
+ depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
+ default y
+ help
+ Enable hardware performance counter support for perf events. If
+ disabled, perf events will use software events only.
+
+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
+ <http://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_CMP
+ 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 SECCOMP
+ bool "Enable seccomp to safely compute untrusted bytecode"
+ depends on PROC_FS
+ default y
+ help
+ This kernel feature is useful for number crunching applications
+ that may need to compute untrusted bytecode during their
+ execution. By using pipes or other transports made available to
+ the process as file descriptors supporting the read/write
+ syscalls, it's possible to isolate those applications in
+ their own address space using seccomp. Once seccomp is
+ enabled via /proc/<pid>/seccomp, it cannot be disabled
+ and the task is only allowed to execute a few safe syscalls
+ defined by each seccomp mode.
+
+ If unsure, say Y. Only embedded should say N here.
+
+config MIPS_O32_FP64_SUPPORT
+ bool "Support for O32 binaries using 64-bit FP"
+ 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 dependant 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 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 compatiblity 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 && \
+ !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 HAVE_LATENCYTOP_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
+ default 2
+
+config MIPS_AUTO_PFN_OFFSET
+ bool
+
+menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
+
+config HW_HAS_EISA
+ bool
+config HW_HAS_PCI
+ bool
+
+config PCI
+ bool "Support for PCI controller"
+ depends on HW_HAS_PCI
+ select PCI_DOMAINS
+ help
+ Find out whether you have a PCI motherboard. PCI is the name of a
+ bus system, i.e. the way the CPU talks to the other stuff inside
+ your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
+ say Y, otherwise N.
+
+config HT_PCI
+ bool "Support for HT-linked PCI"
+ default y
+ depends on CPU_LOONGSON3
+ select PCI
+ select PCI_DOMAINS
+ help
+ Loongson family machines use Hyper-Transport bus for inter-core
+ connection and device connection. The PCI bus is a subordinate
+ linked at HT. Choose Y for Loongson-3 based machines.
+
+config PCI_DOMAINS
+ bool
+
+config PCI_DOMAINS_GENERIC
+ bool
+
+config PCI_DRIVERS_GENERIC
+ select PCI_DOMAINS_GENERIC if PCI_DOMAINS
+ bool
+
+config PCI_DRIVERS_LEGACY
+ def_bool !PCI_DRIVERS_GENERIC
+ select NO_GENERIC_PCI_IOPORT_MAP
+
+source "drivers/pci/Kconfig"
+
+#
+# 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 EISA
+ bool "EISA support"
+ depends on HW_HAS_EISA
+ select ISA
+ select GENERIC_ISA_DMA
+ ---help---
+ The Extended Industry Standard Architecture (EISA) bus was
+ developed as an open alternative to the IBM MicroChannel bus.
+
+ The EISA bus provided some of the features of the IBM MicroChannel
+ bus while maintaining backward compatibility with cards made for
+ the older ISA bus. The EISA bus saw limited use between 1988 and
+ 1995 when it was made obsolete by the PCI bus.
+
+ Say Y here if you are building a kernel for an EISA-based machine.
+
+ Otherwise, say N.
+
+source "drivers/eisa/Kconfig"
+
+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
+
+config ZONE_DMA
+ bool
+
+config ZONE_DMA32
+ bool
+
+source "drivers/pcmcia/Kconfig"
+
+config HAS_RAPIDIO
+ bool
+ default n
+
+config RAPIDIO
+ tristate "RapidIO support"
+ depends on HAS_RAPIDIO || PCI
+ help
+ If you say Y here, the kernel will include drivers and
+ infrastructure code to support RapidIO interconnect devices.
+
+source "drivers/rapidio/Kconfig"
+
+endmenu
+
+config TRAD_SIGNALS
+ bool
+
+config MIPS32_COMPAT
+ bool
+
+config COMPAT
+ bool
+
+config SYSVIPC_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
+ select SYSVIPC_COMPAT if SYSVIPC
+ 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 COMPAT
+ select MIPS32_COMPAT
+ select SYSVIPC_COMPAT if SYSVIPC
+ 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 BINFMT_ELF32
+ bool
+ default y if MIPS32_O32 || MIPS32_N32
+ select ELFCORE
+
+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
+
+source "drivers/cpuidle/Kconfig"
+
+endmenu
+
+source "drivers/firmware/Kconfig"
+
+source "arch/mips/kvm/Kconfig"