Kconfig 83.2 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_HAS_FORTIFY_SOURCE
	select ARCH_HAS_KCOV
	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select BUILDTIME_TABLE_SORT
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	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
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	select HAVE_CONTEXT_TRACKING
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	select HAVE_TIF_NOHZ
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	select HAVE_COPY_THREAD_TLS
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
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	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
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	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MEMBLOCK_NODE_MAP
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_SPARSE_SYSCALL_NR
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_REL if MODULES
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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config MIPS_FIXUP_BIGPHYS_ADDR
	bool

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menu "Machine selection"

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choice
	prompt "System type"
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	default MIPS_GENERIC
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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_EI
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	select CPU_MIPSR2_IRQ_VI
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	select CSRC_R4K
	select DMA_PERDEV_COHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select MIPS_AUTO_PFN_OFFSET
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	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
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	select SWAP_IO_SPACE
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	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
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	select SYS_SUPPORTS_MIPS_CPS
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	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
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	select UHI_BOOT
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	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
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	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.

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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select PHYS_ADDR_T_64BIT
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
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	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
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	select GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select COMMON_CLK
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config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select GPIOLIB
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	select VLYNQ
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	select HAVE_CLK
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	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

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

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

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config BMIPS_GENERIC
	bool "Broadcom Generic BMIPS kernel"
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	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
	select ARCH_HAS_PHYS_TO_DMA
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	select BOOT_RAW
	select NO_EXCEPT_FILL
	select USE_OF
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K
	select COMMON_CLK
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	select BCM6345_L1_IRQ
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	select BCM7038_L1_IRQ
	select BCM7120_L2_IRQ
	select BRCMSTB_L2_IRQ
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	select IRQ_MIPS_CPU
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	select DMA_NONCOHERENT
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
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	select SYS_HAS_CPU_BMIPS32_3300
	select SYS_HAS_CPU_BMIPS4350
	select SYS_HAS_CPU_BMIPS4380
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	select SYS_HAS_CPU_BMIPS5000
	select SWAP_IO_SPACE
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	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
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	select HARDIRQS_SW_RESEND
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	help
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	  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.
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config BCM47XX
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	bool "Broadcom BCM47XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select SYS_HAS_CPU_MIPS32_R1
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	select NO_EXCEPT_FILL
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select GPIOLIB
	select LEDS_GPIO_REGISTER
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	select BCM47XX_NVRAM
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	select BCM47XX_SPROM
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	select BCM47XX_SSB if !BCM47XX_BCMA
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	help
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	  Support for BCM47XX based boards
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config BCM63XX
	bool "Broadcom BCM63XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
	select CSRC_R4K
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	select SYNC_R4K
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
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	select GPIOLIB
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	select HAVE_CLK
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	select MIPS_L1_CACHE_SHIFT_4
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	select CLKDEV_LOOKUP
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	help
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	  Support for BCM63XX based boards
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config MIPS_COBALT
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	bool "Cobalt Server"
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	select CEVT_R4K
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	select CSRC_R4K
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	select CEVT_GT641XX
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	select DMA_NONCOHERENT
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	select FORCE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
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	select IRQ_GT641XX
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	select PCI_GT64XXX_PCI0
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	select SYS_HAS_CPU_NEVADA
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select USE_GENERIC_EARLY_PRINTK_8250
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config MACH_DECSTATION
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	bool "DECstations"
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	select BOOT_ELF32
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	select CEVT_DS1287
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	select CEVT_R4K if CPU_R4X00
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	select CSRC_IOASIC
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	select CSRC_R4K if CPU_R4X00
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	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
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	select DMA_NONCOHERENT
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	select NO_IOPORT_MAP
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	select IRQ_MIPS_CPU
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	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
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	select MIPS_L1_CACHE_SHIFT_4
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	help
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	  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:

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		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260
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	  otherwise choose R3000.

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARC_MEMORY
	select ARC_PROMLIB
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  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.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config MACH_LOONGSON32
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	bool "Loongson 32-bit family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the Loongson-1 family of machines.
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	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).
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config MACH_LOONGSON2EF
	bool "Loongson-2E/F family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of early Loongson-2E/F family of machines.
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config MACH_LOONGSON64
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	bool "Loongson 64-bit family of machines"
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	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 CPU_HAS_WB
	select FORCE_PCI
	select ISA
	select I8259
	select IRQ_MIPS_CPU
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	select NR_CPUS_DEFAULT_64
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	select USE_GENERIC_EARLY_PRINTK_8250
	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
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	select SYS_SUPPORTS_ZBOOT
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	select ZONE_DMA32
	select NUMA
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	select COMMON_CLK
	select USE_OF
	select BUILTIN_DTB
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	help
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	  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).
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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
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	select DMA_NONCOHERENT
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	select GPIOLIB
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	select IRQ_MIPS_CPU
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	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
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

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config MIPS_MALTA
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	bool "MIPS Malta board"
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	select ARCH_MAY_HAVE_PC_FDC
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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Linus Torvalds 已提交
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	select BOOT_ELF32
524
	select BOOT_RAW
P
Paul Burton 已提交
525
	select BUILTIN_DTB
526
	select CEVT_R4K
527
	select CLKSRC_MIPS_GIC
528
	select COMMON_CLK
529
	select CSRC_R4K
530
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
531
	select GENERIC_ISA_DMA
532
	select HAVE_PCSPKR_PLATFORM
533
	select HAVE_PCI
534
	select I8253
L
Linus Torvalds 已提交
535
	select I8259
536
	select IRQ_MIPS_CPU
537
	select MIPS_BONITO64
538
	select MIPS_CPU_SCACHE
539
	select MIPS_GIC
540
	select MIPS_L1_CACHE_SHIFT_6
541
	select MIPS_MSC
542
	select PCI_GT64XXX_PCI0
543
	select SMP_UP if SMP
L
Linus Torvalds 已提交
544
	select SWAP_IO_SPACE
545 546
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
547
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
548
	select SYS_HAS_CPU_MIPS32_R5
549
	select SYS_HAS_CPU_MIPS32_R6
550
	select SYS_HAS_CPU_MIPS64_R1
551
	select SYS_HAS_CPU_MIPS64_R2
552
	select SYS_HAS_CPU_MIPS64_R6
553 554
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
555 556
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
557
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
558
	select SYS_SUPPORTS_HIGHMEM
559
	select SYS_SUPPORTS_LITTLE_ENDIAN
560
	select SYS_SUPPORTS_MICROMIPS
561
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
562
	select SYS_SUPPORTS_MIPS_CMP
563
	select SYS_SUPPORTS_MIPS_CPS
564
	select SYS_SUPPORTS_MULTITHREADING
565
	select SYS_SUPPORTS_RELOCATABLE
566
	select SYS_SUPPORTS_SMARTMIPS
567
	select SYS_SUPPORTS_VPE_LOADER
568
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
569
	select USE_OF
570
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
571
	help
572
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
573 574
	  board.

575 576 577 578 579 580 581 582
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.

583
config MACH_VR41XX
584
	bool "NEC VR4100 series based machines"
585
	select CEVT_R4K
586
	select CSRC_R4K
587
	select SYS_HAS_CPU_VR41XX
588
	select SYS_SUPPORTS_MIPS16
589
	select GPIOLIB
590

591 592 593 594
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
595
	  Support for NXP Semiconductors STB220 Development Board.
596 597 598 599 600 601

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
602
	  Support for NXP Semiconductors STB225 Development Board.
603

J
John Crispin 已提交
604 605 606 607 608 609
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
610
	select IRQ_MIPS_CPU
J
John Crispin 已提交
611 612 613 614 615
	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
616
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
617 618
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
619 620
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
621

L
Linus Torvalds 已提交
622
config SGI_IP22
623
	bool "SGI IP22 (Indy/Indigo2)"
624
	select ARC_MEMORY
625
	select ARC_PROMLIB
626 627
	select FW_ARC
	select FW_ARC32
628
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
629
	select BOOT_ELF32
630
	select CEVT_R4K
631
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
632
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
633
	select DMA_NONCOHERENT
634
	select HAVE_EISA
635
	select I8253
636
	select I8259
L
Linus Torvalds 已提交
637
	select IP22_CPU_SCACHE
638
	select IRQ_MIPS_CPU
639
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
640 641
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
642
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
643 644 645
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
646
	select SWAP_IO_SPACE
647 648
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
649
	select SYS_HAS_EARLY_PRINTK
650 651
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
652
	select SYS_SUPPORTS_BIG_ENDIAN
653
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
654 655 656 657 658 659
	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
660
	bool "SGI IP27 (Origin200/2000)"
661
	select ARCH_HAS_PHYS_TO_DMA
662
	select ARCH_SPARSEMEM_ENABLE
663 664
	select FW_ARC
	select FW_ARC64
665
	select ARC_CMDLINE_ONLY
666
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
667
	select DEFAULT_SGI_PARTITION
668
	select SYS_HAS_EARLY_PRINTK
669
	select HAVE_PCI
670
	select IRQ_MIPS_CPU
671
	select IRQ_DOMAIN_HIERARCHY
672
	select NR_CPUS_DEFAULT_64
673 674
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
675
	select SYS_HAS_CPU_R10000
676
	select SYS_SUPPORTS_64BIT_KERNEL
677
	select SYS_SUPPORTS_BIG_ENDIAN
678
	select SYS_SUPPORTS_NUMA
679
	select SYS_SUPPORTS_SMP
680
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
681 682 683 684 685
	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.

T
Thomas Bogendoerfer 已提交
686
config SGI_IP28
687
	bool "SGI IP28 (Indigo2 R10k)"
688
	select ARC_MEMORY
689
	select ARC_PROMLIB
690 691
	select FW_ARC
	select FW_ARC64
692
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
693 694 695 696 697 698
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
699
	select IRQ_MIPS_CPU
700
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
701 702 703 704
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
705
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
706 707 708 709 710
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
711
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
712 713
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
714
	select MIPS_L1_CACHE_SHIFT_7
715 716 717
	help
	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
	  kernel that runs on these, say Y here.
T
Thomas Bogendoerfer 已提交
718

719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745
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 SYNC_R4K if SMP
	select ZONE_DMA32
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select IRQ_DOMAIN_HIERARCHY
	select NR_CPUS_DEFAULT_2
	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 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.

L
Linus Torvalds 已提交
746
config SGI_IP32
747
	bool "SGI IP32 (O2)"
748 749
	select ARC_MEMORY
	select ARC_PROMLIB
750
	select ARCH_HAS_PHYS_TO_DMA
751 752
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
753
	select BOOT_ELF32
754
	select CEVT_R4K
755
	select CSRC_R4K
L
Linus Torvalds 已提交
756
	select DMA_NONCOHERENT
757
	select HAVE_PCI
758
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
759 760
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
761 762 763
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
764
	select SYS_HAS_CPU_NEVADA
765
	select SYS_SUPPORTS_64BIT_KERNEL
766 767
	select SYS_SUPPORTS_BIG_ENDIAN
	help
768
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
769

770 771
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
772
	select BOOT_ELF32
773
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
774
	select SWAP_IO_SPACE
775
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
776 777 778
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

779 780
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
781
	select BOOT_ELF32
782
	select SIBYTE_BCM1120
783
	select SWAP_IO_SPACE
784
	select SYS_HAS_CPU_SB1
785
	select SYS_SUPPORTS_BIG_ENDIAN
786
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
787

788 789
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
790
	select BOOT_ELF32
791
	select SIBYTE_BCM1125
792
	select SWAP_IO_SPACE
793
	select SYS_HAS_CPU_SB1
794
	select SYS_SUPPORTS_BIG_ENDIAN
795
	select SYS_SUPPORTS_HIGHMEM
796
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
797

798
config SIBYTE_RHONE
799
	bool "Sibyte BCM91125E-Rhone"
800 801 802
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
803
	select SYS_HAS_CPU_SB1
804 805
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
806

807 808
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
809
	select BOOT_ELF32
810
	select HAVE_PATA_PLATFORM
811
	select SIBYTE_SB1250
812
	select SWAP_IO_SPACE
813
	select SYS_HAS_CPU_SB1
814
	select SYS_SUPPORTS_BIG_ENDIAN
815
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
816
	select SYS_SUPPORTS_LITTLE_ENDIAN
817
	select ZONE_DMA32 if 64BIT
818
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
819

820 821
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
822
	select BOOT_ELF32
823
	select HAVE_PATA_PLATFORM
824 825
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
826
	select SYS_HAS_CPU_SB1
827 828 829
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
830
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
831

832 833
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
834 835 836
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
837
	select SYS_HAS_CPU_SB1
838 839
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
840
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
841

842 843
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
844
	select BOOT_ELF32
845 846
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
847
	select SWAP_IO_SPACE
848
	select SYS_HAS_CPU_SB1
849
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
850
	select SYS_SUPPORTS_HIGHMEM
851
	select SYS_SUPPORTS_LITTLE_ENDIAN
852
	select ZONE_DMA32 if 64BIT
853
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
854

855 856
config SNI_RM
	bool "SNI RM200/300/400"
857 858
	select ARC_MEMORY
	select ARC_PROMLIB
859 860
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
861
	select FW_SNIPROM if CPU_BIG_ENDIAN
862
	select ARCH_MAY_HAVE_PC_FDC
863
	select ARCH_MIGHT_HAVE_PC_PARPORT
864
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
865
	select BOOT_ELF32
866
	select CEVT_R4K
867
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
868
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
869 870
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
871
	select HAVE_EISA
872
	select HAVE_PCSPKR_PLATFORM
873
	select HAVE_PCI
874
	select IRQ_MIPS_CPU
875
	select I8253
L
Linus Torvalds 已提交
876 877
	select I8259
	select ISA
878
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
879
	select SYS_HAS_CPU_R4X00
880
	select SYS_HAS_CPU_R5000
881
	select SYS_HAS_CPU_R10000
882
	select R5000_CPU_SCACHE
883
	select SYS_HAS_EARLY_PRINTK
884
	select SYS_SUPPORTS_32BIT_KERNEL
885
	select SYS_SUPPORTS_64BIT_KERNEL
886
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
887
	select SYS_SUPPORTS_HIGHMEM
888
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
889
	help
890 891
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
Linus Torvalds 已提交
892 893 894
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

895 896
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
897

898 899
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
900

901 902 903 904 905
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
906
	select HAVE_PCI
907
	select IRQ_MIPS_CPU
908 909 910 911 912
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
913
	select GPIOLIB
914
	select MIPS_L1_CACHE_SHIFT_4
915 916 917 918
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

919 920
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
921
	select CEVT_R4K
922
	select ARCH_HAS_PHYS_TO_DMA
923
	select HAVE_RAPIDIO
924
	select PHYS_ADDR_T_64BIT
925 926
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
927
	select EDAC_SUPPORT
928
	select EDAC_ATOMIC_SCRUB
929 930
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
931
	select SYS_HAS_EARLY_PRINTK
932
	select SYS_HAS_CPU_CAVIUM_OCTEON
933
	select HAVE_PCI
934 935 936
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
D
David Daney 已提交
937
	select ZONE_DMA32
938
	select HOLES_IN_ZONE
939
	select GPIOLIB
940 941 942
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
943 944
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
945
	select BUILTIN_DTB
946
	select MTD_COMPLEX_MAPPINGS
947
	select SWIOTLB
S
Steven J. Hill 已提交
948
	select SYS_SUPPORTS_RELOCATABLE
949 950 951 952 953 954 955 956 957 958 959 960 961
	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.

962 963 964 965 966 967
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
968
	select HAVE_PCI
969 970 971
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
972
	select PHYS_ADDR_T_64BIT
973 974 975 976 977
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
978
	select IRQ_MIPS_CPU
979
	select ZONE_DMA32 if 64BIT
980 981
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
982 983
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
984 985 986 987
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

988 989 990 991 992 993
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
994
	select HAVE_PCI
995 996
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
997
	select PHYS_ADDR_T_64BIT
998
	select GPIOLIB
999 1000 1001 1002 1003 1004
	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
1005
	select IRQ_MIPS_CPU
1006
	select ZONE_DMA32 if 64BIT
1007 1008
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1009
	select USE_OF
1010 1011
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1012 1013 1014 1015
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028
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
1029
	select HAVE_PCI
1030 1031 1032 1033
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1034
endchoice
L
Linus Torvalds 已提交
1035

R
Ralf Baechle 已提交
1036
source "arch/mips/alchemy/Kconfig"
1037
source "arch/mips/ath25/Kconfig"
1038
source "arch/mips/ath79/Kconfig"
1039
source "arch/mips/bcm47xx/Kconfig"
1040
source "arch/mips/bcm63xx/Kconfig"
1041
source "arch/mips/bmips/Kconfig"
1042
source "arch/mips/generic/Kconfig"
1043
source "arch/mips/jazz/Kconfig"
1044
source "arch/mips/jz4740/Kconfig"
1045
source "arch/mips/lantiq/Kconfig"
1046
source "arch/mips/pic32/Kconfig"
1047
source "arch/mips/pistachio/Kconfig"
J
John Crispin 已提交
1048
source "arch/mips/ralink/Kconfig"
1049
source "arch/mips/sgi-ip27/Kconfig"
1050
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1051
source "arch/mips/txx9/Kconfig"
1052
source "arch/mips/vr41xx/Kconfig"
1053
source "arch/mips/cavium-octeon/Kconfig"
1054
source "arch/mips/loongson2ef/Kconfig"
1055 1056
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1057
source "arch/mips/netlogic/Kconfig"
1058
source "arch/mips/paravirt/Kconfig"
1059

1060 1061
endmenu

1062 1063 1064 1065
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
1066 1067 1068 1069
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1070
config SCHED_OMIT_FRAME_POINTER
1071 1072 1073
	bool
	default y

L
Linus Torvalds 已提交
1074 1075 1076
#
# Select some configuration options automatically based on user selections.
#
1077
config FW_ARC
L
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1078 1079
	bool

1080 1081 1082
config ARCH_MAY_HAVE_PC_FDC
	bool

M
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1083 1084 1085
config BOOT_RAW
	bool

1086 1087 1088
config CEVT_BCM1480
	bool

1089 1090 1091
config CEVT_DS1287
	bool

1092 1093 1094
config CEVT_GT641XX
	bool

1095 1096 1097
config CEVT_R4K
	bool

1098 1099 1100
config CEVT_SB1250
	bool

1101 1102 1103
config CEVT_TXX9
	bool

1104 1105 1106
config CSRC_BCM1480
	bool

1107 1108 1109
config CSRC_IOASIC
	bool

1110 1111 1112
config CSRC_R4K
	bool

1113 1114 1115
config CSRC_SB1250
	bool

1116 1117 1118
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1119
config GPIO_TXX9
1120
	select GPIOLIB
1121 1122
	bool

1123
config FW_CFE
1124 1125
	bool

R
Ralf Baechle 已提交
1126 1127 1128
config ARCH_SUPPORTS_UPROBES
	bool

1129
config DMA_MAYBE_COHERENT
1130
	select ARCH_HAS_DMA_COHERENCE_H
1131 1132 1133
	select DMA_NONCOHERENT
	bool

1134 1135
config DMA_PERDEV_COHERENT
	bool
1136
	select ARCH_HAS_SETUP_DMA_OPS
1137
	select DMA_NONCOHERENT
1138

1139 1140
config DMA_NONCOHERENT
	bool
1141 1142 1143 1144 1145 1146 1147
	#
	# 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.
	#
1148
	select ARCH_HAS_DMA_WRITE_COMBINE
1149
	select ARCH_HAS_DMA_PREP_COHERENT
1150
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1151
	select ARCH_HAS_DMA_SET_UNCACHED
1152
	select DMA_NONCOHERENT_MMAP
1153
	select DMA_NONCOHERENT_CACHE_SYNC
1154
	select NEED_DMA_MAP_STATE
1155

1156
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
1157 1158
	bool

1159
config SYS_SUPPORTS_HOTPLUG_CPU
1160 1161
	bool

L
Linus Torvalds 已提交
1162 1163 1164 1165 1166 1167
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1168 1169 1170
config SYNC_R4K
	bool

1171 1172 1173
config MIPS_MACHINE
	def_bool n

1174
config NO_IOPORT_MAP
1175 1176
	def_bool n

1177
config GENERIC_CSUM
1178
	def_bool CPU_NO_LOAD_STORE_LR
1179

1180 1181 1182
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1183
	select ISA_DMA_API
1184

1185 1186
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1187
	select GENERIC_ISA_DMA
1188

1189 1190 1191 1192 1193 1194 1195 1196 1197
config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

1198 1199 1200
config ISA_DMA_API
	bool

1201 1202 1203
config HOLES_IN_ZONE
	bool

1204 1205 1206
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1207 1208 1209
	  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.
1210

D
David Daney 已提交
1211 1212 1213 1214 1215 1216 1217 1218 1219
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


1220
#
M
Masanari Iida 已提交
1221
# Endianness selection.  Sufficiently obscure so many users don't know what to
1222 1223 1224 1225
# 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
M
Masanari Iida 已提交
1226
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1227 1228
	help
	  Some MIPS machines can be configured for either little or big endian
1229
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1230
	  Linux distribution.  In general there is one preferred byteorder for a
1231
	  particular system but some systems are just as commonly used in the
1232
	  one or the other endianness.
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243

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

1244 1245 1246
config EXPORT_UASM
	bool

1247 1248 1249
config SYS_SUPPORTS_APM_EMULATION
	bool

1250 1251 1252 1253 1254
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1255

1256 1257
config SYS_SUPPORTS_HUGETLBFS
	bool
1258
	depends on CPU_SUPPORTS_HUGEPAGES
1259 1260
	default y

1261 1262 1263
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1264 1265 1266
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1267 1268 1269 1270 1271 1272
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1273 1274 1275
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1276 1277 1278
config IRQ_GT641XX
	bool

1279
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1280 1281
	bool

1282 1283 1284
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1285 1286 1287
config NO_EXCEPT_FILL
	bool

1288 1289 1290 1291
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1292
	select IRQ_MIPS_CPU
1293 1294 1295 1296 1297
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1298
	select SYS_SUPPORTS_MIPS16
1299 1300 1301 1302 1303 1304
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1305 1306 1307
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1308 1309 1310
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1311 1312 1313
config SGI_HAS_INDYDOG
	bool

1314 1315 1316
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
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

1332
config FW_ARC32
1333 1334
	bool

P
Paul Bolle 已提交
1335
config FW_SNIPROM
1336 1337
	bool

L
Linus Torvalds 已提交
1338 1339 1340
config BOOT_ELF32
	bool

1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
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

L
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1353 1354
config MIPS_L1_CACHE_SHIFT
	int
1355
	default "7" if MIPS_L1_CACHE_SHIFT_7
1356 1357 1358
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
L
Linus Torvalds 已提交
1359 1360
	default "5"

1361 1362 1363
config ARC_CMDLINE_ONLY
	bool

L
Linus Torvalds 已提交
1364 1365
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1366
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1367 1368 1369 1370 1371 1372 1373

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1374
config FW_ARC64
L
Linus Torvalds 已提交
1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1386
config CPU_LOONGSON64
1387
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1388
	depends on SYS_HAS_CPU_LOONGSON64
1389
	select ARCH_HAS_PHYS_TO_DMA
1390 1391
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1392 1393 1394
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1395
	select CPU_SUPPORTS_MSA
1396 1397
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1398 1399
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1400
	select MIPS_ASID_BITS_VARIABLE
1401
	select MIPS_PGD_C0_CONTEXT
1402
	select MIPS_L1_CACHE_SHIFT_6
1403
	select GPIOLIB
1404
	select SWIOTLB
1405
	help
1406 1407 1408 1409 1410 1411 1412 1413
		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"
1414
	default n
J
Jiaxun Yang 已提交
1415
	depends on CPU_LOONGSON64
1416
	help
1417
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1418
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1419
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1420 1421 1422 1423 1424 1425
	  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
1426
	  new Loongson-3 machines only, please say 'Y' here.
1427

1428
config CPU_LOONGSON3_WORKAROUNDS
1429
	bool "Old Loongson-3 LLSC Workarounds"
1430
	default y if SMP
J
Jiaxun Yang 已提交
1431
	depends on CPU_LOONGSON64
1432
	help
1433
	  Loongson-3 processors have the llsc issues which require workarounds.
1434 1435
	  Without workarounds the system may hang unexpectedly.

1436
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1437 1438 1439 1440 1441 1442
	  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 old systems.

	  If unsure, please say Y.

1443 1444 1445
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1446
	select CPU_LOONGSON2EF
1447 1448 1449 1450
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1451
	  It has an internal FPGA northbridge, which is compatible to
1452 1453 1454 1455 1456
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1457
	select CPU_LOONGSON2EF
1458
	select GPIOLIB
1459 1460 1461 1462 1463 1464 1465 1466
	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.

1467 1468 1469
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1470
	select CPU_LOONGSON32
1471
	select LEDS_GPIO_REGISTER
1472 1473
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1474 1475
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1476

Y
Yang Ling 已提交
1477 1478 1479
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1480
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1481 1482 1483
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1484 1485
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1486

1487 1488
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1489
	depends on SYS_HAS_CPU_MIPS32_R1
1490
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1491
	select CPU_SUPPORTS_32BIT_KERNEL
1492
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1493
	help
1494
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505
	  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"
1506
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1507
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1508
	select CPU_SUPPORTS_32BIT_KERNEL
1509
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1510
	select CPU_SUPPORTS_MSA
1511
	select HAVE_KVM
1512
	help
1513
	  Choose this option to build a kernel for release 2 or later of the
1514 1515 1516 1517 1518
	  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.

S
Serge Semin 已提交
1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533
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.

1534
config CPU_MIPS32_R6
1535
	bool "MIPS32 Release 6"
1536 1537
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1538
	select CPU_NO_LOAD_STORE_LR
1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549
	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.

1550 1551
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1552
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1553
	select CPU_HAS_PREFETCH
1554 1555
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1556
	select CPU_SUPPORTS_HIGHMEM
1557
	select CPU_SUPPORTS_HUGEPAGES
1558 1559 1560 1561 1562 1563
	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.
R
Ralf Baechle 已提交
1564 1565 1566 1567 1568 1569 1570
	  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"
1571
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1572
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1573 1574
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1575
	select CPU_SUPPORTS_HIGHMEM
1576
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1577
	select CPU_SUPPORTS_MSA
1578
	select HAVE_KVM
R
Ralf Baechle 已提交
1579 1580 1581 1582 1583 1584
	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.
L
Linus Torvalds 已提交
1585

S
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1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602
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.

1603
config CPU_MIPS64_R6
1604
	bool "MIPS64 Release 6"
1605 1606
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1607
	select CPU_NO_LOAD_STORE_LR
1608 1609 1610
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1611
	select CPU_SUPPORTS_HUGEPAGES
1612
	select CPU_SUPPORTS_MSA
1613
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1614
	select HAVE_KVM
1615 1616 1617 1618 1619 1620
	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.

1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642
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_UNCACHED_ACCELERATED
	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.

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config CPU_R3000
	bool "R3000"
1645
	depends on SYS_HAS_CPU_R3000
1646
	select CPU_HAS_WB
1647
	select CPU_R3K_TLB
1648
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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1650 1651 1652 1653 1654 1655 1656 1657 1658 1659
	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"
1660
	depends on SYS_HAS_CPU_TX39XX
1661
	select CPU_SUPPORTS_32BIT_KERNEL
1662
	select CPU_R3K_TLB
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1663 1664 1665

config CPU_VR41XX
	bool "R41xx"
1666
	depends on SYS_HAS_CPU_VR41XX
1667 1668
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1669
	help
1670
	  The options selects support for the NEC VR4100 series of processors.
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	  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_R4X00
	bool "R4x00"
1677
	depends on SYS_HAS_CPU_R4X00
1678 1679
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1680
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1687
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1689 1690
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1691
	select CPU_SUPPORTS_HUGEPAGES
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1692 1693 1694

config CPU_R5000
	bool "R5000"
1695
	depends on SYS_HAS_CPU_R5000
1696 1697
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1698
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1702 1703 1704 1705 1706
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1707
	select CPU_SUPPORTS_HUGEPAGES
1708 1709 1710 1711
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1714
	depends on SYS_HAS_CPU_NEVADA
1715 1716
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1717
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1723
	depends on SYS_HAS_CPU_R10000
1724
	select CPU_HAS_PREFETCH
1725 1726
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1728
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1734
	depends on SYS_HAS_CPU_RM7000
1735
	select CPU_HAS_PREFETCH
1736 1737
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1738
	select CPU_SUPPORTS_HIGHMEM
1739
	select CPU_SUPPORTS_HUGEPAGES
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1740 1741 1742

config CPU_SB1
	bool "SB1"
1743
	depends on SYS_HAS_CPU_SB1
1744 1745
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1746
	select CPU_SUPPORTS_HIGHMEM
1747
	select CPU_SUPPORTS_HUGEPAGES
1748
	select WEAK_ORDERING
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1749

1750 1751
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1752
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1753 1754 1755 1756
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1757
	select CPU_SUPPORTS_HUGEPAGES
1758 1759
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1760
	select MIPS_L1_CACHE_SHIFT_7
1761
	select HAVE_KVM
1762 1763 1764 1765 1766 1767
	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.

1768 1769 1770 1771
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1772
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1773 1774 1775 1776 1777
	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
1778
	select IRQ_MIPS_CPU
1779 1780
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1781
	select CPU_SUPPORTS_HIGHMEM
1782
	select CPU_HAS_PREFETCH
1783 1784
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1785
	help
1786
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1787

1788 1789 1790 1791 1792 1793
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
1794
	select CPU_SUPPORTS_HUGEPAGES
1795 1796 1797 1798
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1799 1800 1801 1802 1803 1804 1805 1806 1807 1808

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
1809
	select CPU_MIPSR2
1810
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1812 1813
	help
	  Netlogic Microsystems XLP processors.
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1814 1815
endchoice

1816 1817 1818
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1819 1820
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
		   CPU_P5600
1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836
	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.

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config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
1840
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
S
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1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853
	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
1854
	select PHYS_ADDR_T_64BIT
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1855 1856 1857 1858 1859 1860 1861 1862 1863
	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.

1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890
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

1891 1892 1893 1894
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1895
	select HAVE_KERNEL_LZ4
1896
	select HAVE_KERNEL_LZMA
1897
	select HAVE_KERNEL_LZO
1898
	select HAVE_KERNEL_XZ
1899 1900 1901 1902 1903

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1904 1905 1906 1907
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1909 1910 1911 1912
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1913
	select CPU_SUPPORTS_HUGEPAGES
1914
	select ARCH_HAS_PHYS_TO_DMA
1915

1916
config CPU_LOONGSON32
1917 1918
	bool
	select CPU_MIPS32
1919
	select CPU_MIPSR2
1920 1921 1922
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1923
	select CPU_SUPPORTS_CPUFREQ
1924

1925
config CPU_BMIPS32_3300
1926
	select SMP_UP if SMP
1927
	bool
1928 1929 1930 1931 1932 1933 1934 1935

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1936
	select MIPS_L1_CACHE_SHIFT_6
1937 1938
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1939
	select CPU_HAS_RIXI
1940 1941 1942 1943

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1944
	select MIPS_L1_CACHE_SHIFT_7
1945 1946
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1947
	select CPU_HAS_RIXI
1948

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1949
config SYS_HAS_CPU_LOONGSON64
1950 1951
	bool
	select CPU_SUPPORTS_CPUFREQ
1952
	select CPU_HAS_RIXI
1953

1954
config SYS_HAS_CPU_LOONGSON2E
1955 1956
	bool

1957 1958
config SYS_HAS_CPU_LOONGSON2F
	bool
1959 1960
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1961

1962 1963 1964
config SYS_HAS_CPU_LOONGSON1B
	bool

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1965 1966 1967
config SYS_HAS_CPU_LOONGSON1C
	bool

1968 1969 1970 1971 1972 1973
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1974 1975 1976
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1977 1978
config SYS_HAS_CPU_MIPS32_R5
	bool
1979
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1980

1981 1982
config SYS_HAS_CPU_MIPS32_R6
	bool
1983
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1984

1985 1986 1987 1988 1989 1990
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1991 1992
config SYS_HAS_CPU_MIPS64_R6
	bool
1993
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1994

1995 1996 1997 1998
config SYS_HAS_CPU_P5600
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

2017 2018 2019
config SYS_HAS_CPU_R5500
	bool

2020 2021 2022 2023 2024
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2025
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2026 2027 2028 2029 2030 2031 2032

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2033 2034 2035
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2036
config SYS_HAS_CPU_BMIPS
2037 2038
	bool

2039
config SYS_HAS_CPU_BMIPS32_3300
2040
	bool
2041
	select SYS_HAS_CPU_BMIPS
2042 2043 2044

config SYS_HAS_CPU_BMIPS4350
	bool
2045
	select SYS_HAS_CPU_BMIPS
2046 2047 2048

config SYS_HAS_CPU_BMIPS4380
	bool
2049
	select SYS_HAS_CPU_BMIPS
2050 2051 2052

config SYS_HAS_CPU_BMIPS5000
	bool
2053
	select SYS_HAS_CPU_BMIPS
2054
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2055

2056 2057 2058
config SYS_HAS_CPU_XLR
	bool

2059 2060 2061
config SYS_HAS_CPU_XLP
	bool

2062 2063 2064 2065
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2066 2067
config WEAK_ORDERING
	bool
2068 2069 2070 2071 2072 2073 2074

#
# 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
2075 2076 2077
endmenu

#
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2078
# These two indicate any level of the MIPS32 and MIPS64 architecture
2079 2080 2081
#
config CPU_MIPS32
	bool
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2082
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2083
		     CPU_MIPS32_R6 || CPU_P5600
2084 2085 2086

config CPU_MIPS64
	bool
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2087 2088
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
		     CPU_MIPS64_R6
2089 2090

#
2091
# These indicate the revision of the architecture
2092 2093 2094 2095 2096 2097 2098
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2099
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2100
	select CPU_HAS_RIXI
2101
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2102
	select MIPS_SPRAM
2103

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2104 2105
config CPU_MIPSR5
	bool
2106
	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
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2107 2108 2109 2110
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

2111 2112 2113
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2114
	select CPU_HAS_RIXI
2115
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2116
	select HAVE_ARCH_BITREVERSE
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2117
	select MIPS_ASID_BITS_VARIABLE
2118
	select MIPS_CRC_SUPPORT
2119
	select MIPS_SPRAM
2120

2121 2122 2123 2124
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
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2125
	default 5 if CPU_MIPSR5
2126 2127 2128 2129 2130 2131
	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.

2132 2133 2134
config EVA
	bool

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2135 2136 2137
config XPA
	bool

2138 2139 2140 2141 2142 2143 2144 2145
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2146 2147 2148 2149
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2150 2151
config CPU_SUPPORTS_HUGEPAGES
	bool
2152
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2153 2154
config MIPS_PGD_C0_CONTEXT
	bool
2155
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2156

2157 2158 2159 2160
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2161 2162
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2163

2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179
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.
2180

2181 2182 2183 2184 2185 2186 2187 2188
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

2189 2190
config KVM_GUEST
	bool "KVM Guest Kernel"
2191
	depends on BROKEN_ON_SMP
2192
	help
2193 2194
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2195

2196 2197
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2198
	depends on KVM_GUEST
2199
	default 100
2200
	help
2201 2202 2203
	  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.
2204

2205 2206 2207 2208
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2209 2210 2211 2212 2213 2214 2215
	  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.

2216 2217
	  If unsure, say N.

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
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	help
2226 2227 2228 2229
	  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.
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config PAGE_SIZE_8KB
	bool "8kB"
2233
	depends on CPU_CAVIUM_OCTEON
2234
	depends on !MIPS_VA_BITS_48
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	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
2238 2239
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.
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config PAGE_SIZE_16KB
	bool "16kB"
2243
	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2247 2248
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2250 2251 2252
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2253
	depends on !MIPS_VA_BITS_48
2254 2255 2256 2257 2258 2259
	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.

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config PAGE_SIZE_64KB
	bool "64kB"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	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
2267
	  writing this option is still high experimental.
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endchoice

2271 2272
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2273 2274 2275 2276 2277 2278
	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
2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294
	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.

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config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

2302 2303 2304 2305 2306 2307 2308
#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

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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
2326
	bool
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2328 2329
config CPU_GENERIC_DUMP_TLB
	bool
2330
	default y if !(CPU_R3000 || CPU_TX39XX)
2331

2332
config MIPS_FP_SUPPORT
2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345
	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.
2346

2347 2348
config CPU_R2300_FPU
	bool
2349
	depends on MIPS_FP_SUPPORT
2350 2351
	default y if CPU_R3000 || CPU_TX39XX

2352 2353 2354
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2357
	depends on MIPS_FP_SUPPORT
2358
	default y if !CPU_R2300_FPU
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2360 2361
config CPU_R4K_CACHE_TLB
	bool
2362
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2363

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config MIPS_MT_SMP
2365
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2366
	default y
2367
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2368
	select CPU_MIPSR2_IRQ_VI
2369
	select CPU_MIPSR2_IRQ_EI
2370
	select SYNC_R4K
2371
	select MIPS_MT
2372
	select SMP
2373
	select SMP_UP
2374 2375
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2376
	select MIPS_PERF_SHARED_TC_COUNTERS
2377
	help
2378 2379 2380 2381 2382
	  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>.
2383

2384 2385 2386
config MIPS_MT
	bool

2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398
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

2399 2400 2401
config SYS_SUPPORTS_MULTITHREADING
	bool

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config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
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	depends on MIPS_MT_SMP
2406

2407 2408
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2409
	depends on CPU_MIPSR6
2410
	depends on MIPS_FP_SUPPORT
2411 2412 2413 2414
	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
2415
	  default. You can enable it using the 'mipsr2emu' kernel option.
2416 2417 2418
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2419 2420 2421 2422 2423 2424 2425
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2426 2427
config MIPS_VPE_LOADER
	bool "VPE loader support."
2428
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2429 2430 2431 2432 2433 2434
	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.
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2436 2437 2438 2439 2440
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2441 2442 2443 2444 2445
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456
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
2457 2458
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2459

2460 2461 2462 2463 2464
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2465 2466 2467 2468 2469
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2470
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2472
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2473
	select SMP
2474
	select SYNC_R4K
2475
	select SYS_SUPPORTS_SMP
2476 2477 2478
	select WEAK_ORDERING
	default n
	help
2479 2480 2481
	  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.
2482

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	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
	  instead of this.

2486 2487
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2488
	depends on SYS_SUPPORTS_MIPS_CPS
2489
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2491 2492
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2494
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2495 2496 2497 2498 2499 2500 2501 2502 2503
	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.

2504
config MIPS_CPS_PM
2505
	depends on MIPS_CPS
2506 2507
	bool

2508 2509
config MIPS_CM
	bool
2510
	select MIPS_CPC
2511

2512 2513
config MIPS_CPC
	bool
2514

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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

2525 2526 2527 2528 2529 2530 2531 2532
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

2533 2534
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2535
	bool "SmartMIPS"
2536 2537 2538 2539 2540 2541 2542 2543 2544
	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.

2545
config CPU_MICROMIPS
2546
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2547
	bool "microMIPS"
2548 2549 2550 2551
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2552 2553
endchoice

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config CPU_HAS_MSA
2555
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2557
	depends on MIPS_FP_SUPPORT
2558
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2562 2563 2564 2565 2566
	  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.
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	  If unsure, say Y.

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config CPU_HAS_WB
2571
	bool
2572

2573 2574 2575
config XKS01
	bool

2576 2577 2578 2579 2580 2581 2582
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2583 2584 2585
config CPU_HAS_RIXI
	bool

2586
config CPU_NO_LOAD_STORE_LR
2587 2588
	bool
	help
2589
	  CPU lacks support for unaligned load and store instructions:
2590
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2591 2592
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2593

2594 2595 2596
#
# Vectored interrupt mode is an R2 feature
#
2597
config CPU_MIPSR2_IRQ_VI
2598
	bool
2599

2600 2601 2602
#
# Extended interrupt mode is an R2 feature
#
2603
config CPU_MIPSR2_IRQ_EI
2604
	bool
2605

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2624 2625 2626 2627
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2628 2629 2630 2631 2632 2633 2634
config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 0

config MIPS_ASID_BITS
	int
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	default 0 if MIPS_ASID_BITS_VARIABLE
2636 2637 2638
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2642 2643 2644
config MIPS_CRC_SUPPORT
	bool

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#
# - 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.
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# - 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.
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#
config HIGHMEM
	bool "High Memory Support"
2660
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
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config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool
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2668 2669 2670
config SYS_SUPPORTS_SMARTMIPS
	bool

2671 2672 2673
config SYS_SUPPORTS_MICROMIPS
	bool

2674 2675 2676 2677 2678 2679 2680
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.

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config CPU_SUPPORTS_MSA
	bool

2684 2685
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2687

2688 2689
config ARCH_SPARSEMEM_ENABLE
	bool
2690
	select SPARSEMEM_STATIC if !SGI_IP27
2691

2692 2693 2694 2695 2696 2697 2698
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
2699
	  leave it disabled; on single node systems leave this option
2700 2701 2702 2703 2704
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2705 2706 2707 2708 2709 2710 2711 2712
config HAVE_SETUP_PER_CPU_AREA
	def_bool y
	depends on NUMA

config NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool y
	depends on NUMA

2713 2714
config RELOCATABLE
	bool "Relocatable kernel"
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	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 || \
2719
		   CPU_P5600 || CAVIUM_OCTEON_SOC
2720 2721 2722 2723 2724 2725
	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

2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741
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.

2742 2743 2744 2745
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2746 2747 2748 2749
	  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.
2750

2751
	  Entropy is generated using any coprocessor 0 registers available.
2752

2753
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2754

2755
	  If unsure, say N.
2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771

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.

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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2777 2778
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
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	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2780 2781 2782 2783 2784
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795
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.

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config SMP
	bool "Multi-Processing support"
2798 2799
	depends on SYS_SUPPORTS_SMP
	help
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2800
	  This enables support for systems with more than one CPU. If you have
2801 2802
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2803

2804
	  If you say N here, the kernel will run on uni- and multiprocessor
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	  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,
2807
	  uniprocessor machines. On a uniprocessor machine, the kernel
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2808 2809 2810 2811 2812
	  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.

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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2815 2816 2817

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

2818 2819 2820 2821 2822 2823 2824 2825 2826 2827
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.

2828 2829 2830
config SMP_UP
	bool

2831 2832 2833
config SYS_SUPPORTS_MIPS_CMP
	bool

2834 2835 2836
config SYS_SUPPORTS_MIPS_CPS
	bool

2837 2838 2839
config SYS_SUPPORTS_SMP
	bool

2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854
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

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2855
config NR_CPUS
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2856 2857
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2858
	depends on SMP
2859 2860 2861 2862 2863
	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
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	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
2868 2869
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
L
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2870 2871

	  This is purely to save memory - each supported CPU adds
2872 2873 2874
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
L
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2875

2876 2877
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2878 2879 2880 2881 2882 2883 2884 2885 2886

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
2887

2888 2889 2890 2891 2892 2893 2894 2895
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2896
	  Allows the configuration of the timer frequency.
2897

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2898 2899 2900
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2901
	config HZ_48
2902
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923

	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

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2924 2925 2926
config SYS_SUPPORTS_24HZ
	bool

2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949
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
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2950 2951 2952 2953 2954 2955 2956
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2957 2958 2959 2960
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2961
	default 24 if HZ_24
2962 2963 2964 2965 2966 2967 2968 2969
	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

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Deng-Cheng Zhu 已提交
2970 2971 2972
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2973
config KEXEC
2974
	bool "Kexec system call"
2975
	select KEXEC_CORE
2976 2977 2978
	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
2979
	  but it is independent of the system firmware.   And like a reboot
2980 2981
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2982
	  The name comes from the similarity to the exec system call.
2983 2984 2985

	  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
2986 2987 2988
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2989

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2990
config CRASH_DUMP
2991 2992
	bool "Kernel crash dumps"
	help
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2993 2994 2995 2996 2997 2998 2999 3000 3001
	  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
3002
	hex "Physical address where the kernel is loaded"
3003
	default "0xffffffff84000000"
3004 3005
	depends on CRASH_DUMP
	help
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3006 3007 3008 3009 3010 3011
	  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).

3012 3013
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
3014
	depends on PROC_FS
3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028
	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.

3029
config MIPS_O32_FP64_SUPPORT
3030
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042
	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.

3043 3044 3045 3046 3047 3048 3049 3050
	  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.
3051

3052
config USE_OF
3053
	bool
3054
	select OF
3055
	select OF_EARLY_FLATTREE
3056
	select IRQ_DOMAIN
3057

3058 3059 3060
config UHI_BOOT
	bool

3061 3062 3063
config BUILTIN_DTB
	bool

3064
choice
3065
	prompt "Kernel appended dtb support" if USE_OF
3066 3067 3068 3069 3070 3071 3072
	default MIPS_NO_APPENDED_DTB

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

3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086
	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.

3087
	config MIPS_RAW_APPENDED_DTB
3088
		bool "vmlinux.bin or vmlinuz.bin"
3089 3090
		help
		  With this option, the boot code will look for a device tree binary
3091
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104
		  (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

3105 3106
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
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3107
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
J
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3108
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
J
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3109
					 !CAVIUM_OCTEON_SOC
3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121
	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"
3122 3123 3124 3125

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3126 3127
endchoice

3128 3129
endmenu

3130 3131 3132 3133 3134 3135 3136 3137
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3138 3139
config PGTABLE_LEVELS
	int
3140
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3141 3142 3143
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3144 3145 3146
config MIPS_AUTO_PFN_OFFSET
	bool

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3147 3148
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3149
config PCI_DRIVERS_GENERIC
3150
	select PCI_DOMAINS_GENERIC if PCI
3151 3152 3153 3154 3155
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3156
	select PCI_DOMAINS if PCI
L
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3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169

#
# 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
3170 3171 3172 3173 3174 3175 3176 3177
	  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>
L
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3178 3179 3180 3181 3182

config MMU
	bool
	default y

3183 3184 3185 3186 3187 3188 3189 3190 3191
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
3192
	default 8
3193 3194

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3195
	default 15
3196

3197 3198
config I8253
	bool
3199
	select CLKSRC_I8253
3200
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3201
	select MIPS_EXTERNAL_TIMER
3202

3203 3204 3205
config ZONE_DMA
	bool

3206 3207 3208
config ZONE_DMA32
	bool

L
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3209 3210 3211 3212 3213 3214
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3215
	bool
L
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3216 3217 3218 3219

config COMPAT
	bool

3220 3221 3222
config SYSVIPC_COMPAT
	bool

L
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3223 3224
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3225 3226 3227 3228 3229
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3230 3231 3232 3233 3234 3235 3236 3237 3238
	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"
3239
	depends on 64BIT
3240
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3241 3242 3243
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254
	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
R
Ralf Baechle 已提交
3255
	select ELFCORE
L
Linus Torvalds 已提交
3256

3257 3258
menu "Power management options"

W
Wu Zhangjin 已提交
3259 3260
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3261
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3262

J
Johannes Berg 已提交
3263 3264
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3265
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3266

3267
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3268

L
Linus Torvalds 已提交
3269 3270
endmenu

3271 3272 3273 3274
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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3275 3276

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3277 3278
source "drivers/cpufreq/Kconfig"
endif
W
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3279

P
Paul Burton 已提交
3280 3281 3282 3283
source "drivers/cpuidle/Kconfig"

endmenu

3284 3285
source "drivers/firmware/Kconfig"

3286
source "arch/mips/kvm/Kconfig"
3287 3288

source "arch/mips/vdso/Kconfig"