|  | # SPDX-License-Identifier: GPL-2.0 | 
|  | config MIPS | 
|  | bool | 
|  | default y | 
|  | select ARCH_BINFMT_ELF_STATE | 
|  | select ARCH_CLOCKSOURCE_DATA | 
|  | select ARCH_DISCARD_MEMBLOCK | 
|  | select ARCH_HAS_ELF_RANDOMIZE | 
|  | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST | 
|  | select ARCH_SUPPORTS_UPROBES | 
|  | select ARCH_USE_BUILTIN_BSWAP | 
|  | select ARCH_USE_CMPXCHG_LOCKREF if 64BIT | 
|  | select ARCH_USE_QUEUED_RWLOCKS | 
|  | select ARCH_USE_QUEUED_SPINLOCKS | 
|  | select ARCH_WANT_IPC_PARSE_VERSION | 
|  | select BUILDTIME_EXTABLE_SORT | 
|  | select CLONE_BACKWARDS | 
|  | select CPU_PM if CPU_IDLE | 
|  | select DMA_DIRECT_OPS | 
|  | select GENERIC_ATOMIC64 if !64BIT | 
|  | select GENERIC_CLOCKEVENTS | 
|  | select GENERIC_CMOS_UPDATE | 
|  | select GENERIC_CPU_AUTOPROBE | 
|  | select GENERIC_IRQ_PROBE | 
|  | select GENERIC_IRQ_SHOW | 
|  | select GENERIC_LIB_ASHLDI3 | 
|  | select GENERIC_LIB_ASHRDI3 | 
|  | select GENERIC_LIB_CMPDI2 | 
|  | select GENERIC_LIB_LSHRDI3 | 
|  | select GENERIC_LIB_UCMPDI2 | 
|  | select GENERIC_PCI_IOMAP | 
|  | select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC | 
|  | select GENERIC_SMP_IDLE_THREAD | 
|  | select GENERIC_TIME_VSYSCALL | 
|  | select HANDLE_DOMAIN_IRQ | 
|  | select HAVE_ARCH_COMPILER_H | 
|  | select HAVE_ARCH_JUMP_LABEL | 
|  | select HAVE_ARCH_KGDB | 
|  | select HAVE_ARCH_MMAP_RND_BITS if MMU | 
|  | select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT | 
|  | select HAVE_ARCH_SECCOMP_FILTER | 
|  | select HAVE_ARCH_TRACEHOOK | 
|  | select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT | 
|  | select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) | 
|  | select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) | 
|  | select HAVE_CONTEXT_TRACKING | 
|  | select HAVE_COPY_THREAD_TLS | 
|  | select HAVE_C_RECORDMCOUNT | 
|  | select HAVE_DEBUG_KMEMLEAK | 
|  | select HAVE_DEBUG_STACKOVERFLOW | 
|  | select HAVE_DMA_CONTIGUOUS | 
|  | select HAVE_DYNAMIC_FTRACE | 
|  | select HAVE_EXIT_THREAD | 
|  | select HAVE_FTRACE_MCOUNT_RECORD | 
|  | select HAVE_FUNCTION_GRAPH_TRACER | 
|  | select HAVE_FUNCTION_TRACER | 
|  | select HAVE_GENERIC_DMA_COHERENT | 
|  | select HAVE_IDE | 
|  | select HAVE_IRQ_EXIT_ON_IRQ_STACK | 
|  | select HAVE_IRQ_TIME_ACCOUNTING | 
|  | select HAVE_KPROBES | 
|  | select HAVE_KRETPROBES | 
|  | select HAVE_MEMBLOCK | 
|  | select HAVE_MEMBLOCK_NODE_MAP | 
|  | select HAVE_MOD_ARCH_SPECIFIC | 
|  | select HAVE_NMI | 
|  | select HAVE_OPROFILE | 
|  | select HAVE_PERF_EVENTS | 
|  | select HAVE_REGS_AND_STACK_ACCESS_API | 
|  | select HAVE_RSEQ | 
|  | select HAVE_STACKPROTECTOR | 
|  | select HAVE_SYSCALL_TRACEPOINTS | 
|  | select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP | 
|  | select IRQ_FORCED_THREADING | 
|  | select MODULES_USE_ELF_RELA if MODULES && 64BIT | 
|  | select MODULES_USE_ELF_REL if MODULES | 
|  | select PERF_USE_VMALLOC | 
|  | select RTC_LIB if !MACH_LOONGSON64 | 
|  | select SYSCTL_EXCEPTION_TRACE | 
|  | select VIRT_TO_BUS | 
|  |  | 
|  | menu "Machine selection" | 
|  |  | 
|  | choice | 
|  | prompt "System type" | 
|  | default MIPS_GENERIC | 
|  |  | 
|  | config MIPS_GENERIC | 
|  | bool "Generic board-agnostic MIPS kernel" | 
|  | select BOOT_RAW | 
|  | select BUILTIN_DTB | 
|  | select CEVT_R4K | 
|  | select CLKSRC_MIPS_GIC | 
|  | select COMMON_CLK | 
|  | select CPU_MIPSR2_IRQ_VI | 
|  | select CPU_MIPSR2_IRQ_EI | 
|  | select CSRC_R4K | 
|  | select DMA_PERDEV_COHERENT | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select LIBFDT | 
|  | select MIPS_AUTO_PFN_OFFSET | 
|  | select MIPS_CPU_SCACHE | 
|  | select MIPS_GIC | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | select NO_EXCEPT_FILL | 
|  | select PCI_DRIVERS_GENERIC | 
|  | select PINCTRL | 
|  | select SMP_UP if SMP | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_HAS_CPU_MIPS32_R6 | 
|  | select SYS_HAS_CPU_MIPS64_R1 | 
|  | select SYS_HAS_CPU_MIPS64_R2 | 
|  | select SYS_HAS_CPU_MIPS64_R6 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MICROMIPS | 
|  | select SYS_SUPPORTS_MIPS_CPS | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_MULTITHREADING | 
|  | select SYS_SUPPORTS_RELOCATABLE | 
|  | select SYS_SUPPORTS_SMARTMIPS | 
|  | select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN | 
|  | select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN | 
|  | select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN | 
|  | select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select USE_OF | 
|  | help | 
|  | Select this to build a kernel which aims to support multiple boards, | 
|  | generally using a flattened device tree passed from the bootloader | 
|  | using the boot protocol defined in the UHI (Unified Hosting | 
|  | Interface) specification. | 
|  |  | 
|  | config MIPS_ALCHEMY | 
|  | bool "Alchemy processor based machines" | 
|  | select PHYS_ADDR_T_64BIT | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select IRQ_MIPS_CPU | 
|  | select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_APM_EMULATION | 
|  | select GPIOLIB | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select COMMON_CLK | 
|  |  | 
|  | config AR7 | 
|  | bool "Texas Instruments AR7" | 
|  | select BOOT_ELF32 | 
|  | select DMA_NONCOHERENT | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select IRQ_MIPS_CPU | 
|  | select NO_EXCEPT_FILL | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_ZBOOT_UART16550 | 
|  | select GPIOLIB | 
|  | select VLYNQ | 
|  | select HAVE_CLK | 
|  | help | 
|  | Support for the Texas Instruments AR7 System-on-a-Chip | 
|  | family: TNETD7100, 7200 and 7300. | 
|  |  | 
|  | config ATH25 | 
|  | bool "Atheros AR231x/AR531x SoC support" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select IRQ_DOMAIN | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | help | 
|  | Support for Atheros AR231x and Atheros AR531x based boards | 
|  |  | 
|  | config ATH79 | 
|  | bool "Atheros AR71XX/AR724X/AR913X based boards" | 
|  | select ARCH_HAS_RESET_CONTROLLER | 
|  | select BOOT_RAW | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select GPIOLIB | 
|  | select PINCTRL | 
|  | select HAVE_CLK | 
|  | select COMMON_CLK | 
|  | select CLKDEV_LOOKUP | 
|  | select IRQ_MIPS_CPU | 
|  | select MIPS_MACHINE | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_ZBOOT_UART_PROM | 
|  | select USE_OF | 
|  | select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM | 
|  | help | 
|  | Support for the Atheros AR71XX/AR724X/AR913X SoCs. | 
|  |  | 
|  | config BMIPS_GENERIC | 
|  | bool "Broadcom Generic BMIPS kernel" | 
|  | select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  | select BOOT_RAW | 
|  | select NO_EXCEPT_FILL | 
|  | select USE_OF | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select SYNC_R4K | 
|  | select COMMON_CLK | 
|  | select BCM6345_L1_IRQ | 
|  | select BCM7038_L1_IRQ | 
|  | select BCM7120_L2_IRQ | 
|  | select BRCMSTB_L2_IRQ | 
|  | select IRQ_MIPS_CPU | 
|  | select DMA_NONCOHERENT | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_HAS_CPU_BMIPS32_3300 | 
|  | select SYS_HAS_CPU_BMIPS4350 | 
|  | select SYS_HAS_CPU_BMIPS4380 | 
|  | select SYS_HAS_CPU_BMIPS5000 | 
|  | select SWAP_IO_SPACE | 
|  | select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN | 
|  | select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN | 
|  | select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select HARDIRQS_SW_RESEND | 
|  | help | 
|  | Build a generic DT-based kernel image that boots on select | 
|  | BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top | 
|  | box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN | 
|  | must be set appropriately for your board. | 
|  |  | 
|  | config BCM47XX | 
|  | bool "Broadcom BCM47XX based boards" | 
|  | select BOOT_RAW | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select NO_EXCEPT_FILL | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select USE_GENERIC_EARLY_PRINTK_8250 | 
|  | select GPIOLIB | 
|  | select LEDS_GPIO_REGISTER | 
|  | select BCM47XX_NVRAM | 
|  | select BCM47XX_SPROM | 
|  | select BCM47XX_SSB if !BCM47XX_BCMA | 
|  | help | 
|  | Support for BCM47XX based boards | 
|  |  | 
|  | config BCM63XX | 
|  | bool "Broadcom BCM63XX based boards" | 
|  | select BOOT_RAW | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select SYNC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SWAP_IO_SPACE | 
|  | select GPIOLIB | 
|  | select HAVE_CLK | 
|  | select MIPS_L1_CACHE_SHIFT_4 | 
|  | select CLKDEV_LOOKUP | 
|  | help | 
|  | Support for BCM63XX based boards | 
|  |  | 
|  | config MIPS_COBALT | 
|  | bool "Cobalt Server" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select CEVT_GT641XX | 
|  | select DMA_NONCOHERENT | 
|  | select HW_HAS_PCI | 
|  | select I8253 | 
|  | select I8259 | 
|  | select IRQ_MIPS_CPU | 
|  | select IRQ_GT641XX | 
|  | select PCI_GT64XXX_PCI0 | 
|  | select PCI | 
|  | select SYS_HAS_CPU_NEVADA | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select USE_GENERIC_EARLY_PRINTK_8250 | 
|  |  | 
|  | config MACH_DECSTATION | 
|  | bool "DECstations" | 
|  | select BOOT_ELF32 | 
|  | select CEVT_DS1287 | 
|  | select CEVT_R4K if CPU_R4X00 | 
|  | select CSRC_IOASIC | 
|  | select CSRC_R4K if CPU_R4X00 | 
|  | select CPU_DADDI_WORKAROUNDS if 64BIT | 
|  | select CPU_R4000_WORKAROUNDS if 64BIT | 
|  | select CPU_R4400_WORKAROUNDS if 64BIT | 
|  | select DMA_NONCOHERENT | 
|  | select NO_IOPORT_MAP | 
|  | select IRQ_MIPS_CPU | 
|  | select SYS_HAS_CPU_R3000 | 
|  | select SYS_HAS_CPU_R4X00 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_128HZ | 
|  | select SYS_SUPPORTS_256HZ | 
|  | select SYS_SUPPORTS_1024HZ | 
|  | select MIPS_L1_CACHE_SHIFT_4 | 
|  | help | 
|  | This enables support for DEC's MIPS based workstations.  For details | 
|  | see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the | 
|  | DECstation porting pages on <http://decstation.unix-ag.org/>. | 
|  |  | 
|  | If you have one of the following DECstation Models you definitely | 
|  | want to choose R4xx0 for the CPU Type: | 
|  |  | 
|  | DECstation 5000/50 | 
|  | DECstation 5000/150 | 
|  | DECstation 5000/260 | 
|  | DECsystem 5900/260 | 
|  |  | 
|  | otherwise choose R3000. | 
|  |  | 
|  | config MACH_JAZZ | 
|  | bool "Jazz family of machines" | 
|  | select ARCH_MIGHT_HAVE_PC_PARPORT | 
|  | select ARCH_MIGHT_HAVE_PC_SERIO | 
|  | select FW_ARC | 
|  | select FW_ARC32 | 
|  | select ARCH_MAY_HAVE_PC_FDC | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN | 
|  | select GENERIC_ISA_DMA | 
|  | select HAVE_PCSPKR_PLATFORM | 
|  | select IRQ_MIPS_CPU | 
|  | select I8253 | 
|  | select I8259 | 
|  | select ISA | 
|  | select SYS_HAS_CPU_R4X00 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_100HZ | 
|  | help | 
|  | This a family of machines based on the MIPS R4030 chipset which was | 
|  | used by several vendors to build RISC/os and Windows NT workstations. | 
|  | Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and | 
|  | Olivetti M700-10 workstations. | 
|  |  | 
|  | config MACH_INGENIC | 
|  | bool "Ingenic SoC based machines" | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_ZBOOT_UART16550 | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select PINCTRL | 
|  | select GPIOLIB | 
|  | select COMMON_CLK | 
|  | select GENERIC_IRQ_CHIP | 
|  | select BUILTIN_DTB | 
|  | select USE_OF | 
|  | select LIBFDT | 
|  |  | 
|  | config LANTIQ | 
|  | bool "Lantiq based platforms" | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_MULTITHREADING | 
|  | select SYS_SUPPORTS_VPE_LOADER | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select GPIOLIB | 
|  | select SWAP_IO_SPACE | 
|  | select BOOT_RAW | 
|  | select CLKDEV_LOOKUP | 
|  | select USE_OF | 
|  | select PINCTRL | 
|  | select PINCTRL_LANTIQ | 
|  | select ARCH_HAS_RESET_CONTROLLER | 
|  | select RESET_CONTROLLER | 
|  |  | 
|  | config LASAT | 
|  | bool "LASAT Networks platforms" | 
|  | select CEVT_R4K | 
|  | select CRC32 | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select PCI_GT64XXX_PCI0 | 
|  | select MIPS_NILE4 | 
|  | select R5000_CPU_SCACHE | 
|  | select SYS_HAS_CPU_R5000 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL if BROKEN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | config MACH_LOONGSON32 | 
|  | bool "Loongson-1 family of machines" | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | help | 
|  | This enables support for the Loongson-1 family of machines. | 
|  |  | 
|  | Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by | 
|  | the Institute of Computing Technology (ICT), Chinese Academy of | 
|  | Sciences (CAS). | 
|  |  | 
|  | config MACH_LOONGSON64 | 
|  | bool "Loongson-2/3 family of machines" | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | help | 
|  | This enables the support of Loongson-2/3 family of machines. | 
|  |  | 
|  | Loongson-2 is a family of single-core CPUs and Loongson-3 is a | 
|  | family of multi-core CPUs. They are both 64-bit general-purpose | 
|  | MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute | 
|  | of Computing Technology (ICT), Chinese Academy of Sciences (CAS) | 
|  | in the People's Republic of China. The chief architect is Professor | 
|  | Weiwu Hu. | 
|  |  | 
|  | config MACH_PISTACHIO | 
|  | bool "IMG Pistachio SoC based boards" | 
|  | select BOOT_ELF32 | 
|  | select BOOT_RAW | 
|  | select CEVT_R4K | 
|  | select CLKSRC_MIPS_GIC | 
|  | select COMMON_CLK | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select GPIOLIB | 
|  | select IRQ_MIPS_CPU | 
|  | select LIBFDT | 
|  | select MFD_SYSCON | 
|  | select MIPS_CPU_SCACHE | 
|  | select MIPS_GIC | 
|  | select PINCTRL | 
|  | select REGULATOR | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS_CPS | 
|  | select SYS_SUPPORTS_MULTITHREADING | 
|  | select SYS_SUPPORTS_RELOCATABLE | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select USE_GENERIC_EARLY_PRINTK_8250 | 
|  | select USE_OF | 
|  | help | 
|  | This enables support for the IMG Pistachio SoC platform. | 
|  |  | 
|  | config MIPS_MALTA | 
|  | bool "MIPS Malta board" | 
|  | select ARCH_MAY_HAVE_PC_FDC | 
|  | select ARCH_MIGHT_HAVE_PC_PARPORT | 
|  | select ARCH_MIGHT_HAVE_PC_SERIO | 
|  | select BOOT_ELF32 | 
|  | select BOOT_RAW | 
|  | select BUILTIN_DTB | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select CLKSRC_MIPS_GIC | 
|  | select COMMON_CLK | 
|  | select DMA_MAYBE_COHERENT | 
|  | select GENERIC_ISA_DMA | 
|  | select HAVE_PCSPKR_PLATFORM | 
|  | select IRQ_MIPS_CPU | 
|  | select MIPS_GIC | 
|  | select HW_HAS_PCI | 
|  | select I8253 | 
|  | select I8259 | 
|  | select MIPS_BONITO64 | 
|  | select MIPS_CPU_SCACHE | 
|  | select MIPS_L1_CACHE_SHIFT_6 | 
|  | select PCI_GT64XXX_PCI0 | 
|  | select MIPS_MSC | 
|  | select SMP_UP if SMP | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_HAS_CPU_MIPS32_R3_5 | 
|  | select SYS_HAS_CPU_MIPS32_R5 | 
|  | select SYS_HAS_CPU_MIPS32_R6 | 
|  | select SYS_HAS_CPU_MIPS64_R1 | 
|  | select SYS_HAS_CPU_MIPS64_R2 | 
|  | select SYS_HAS_CPU_MIPS64_R6 | 
|  | select SYS_HAS_CPU_NEVADA | 
|  | select SYS_HAS_CPU_RM7000 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MICROMIPS | 
|  | select SYS_SUPPORTS_MIPS_CMP | 
|  | select SYS_SUPPORTS_MIPS_CPS | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_SUPPORTS_MULTITHREADING | 
|  | select SYS_SUPPORTS_SMARTMIPS | 
|  | select SYS_SUPPORTS_VPE_LOADER | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select SYS_SUPPORTS_RELOCATABLE | 
|  | select USE_OF | 
|  | select LIBFDT | 
|  | select ZONE_DMA32 if 64BIT | 
|  | select BUILTIN_DTB | 
|  | select LIBFDT | 
|  | help | 
|  | This enables support for the MIPS Technologies Malta evaluation | 
|  | board. | 
|  |  | 
|  | config MACH_PIC32 | 
|  | bool "Microchip PIC32 Family" | 
|  | help | 
|  | This enables support for the Microchip PIC32 family of platforms. | 
|  |  | 
|  | Microchip PIC32 is a family of general-purpose 32 bit MIPS core | 
|  | microcontrollers. | 
|  |  | 
|  | config NEC_MARKEINS | 
|  | bool "NEC EMMA2RH Mark-eins board" | 
|  | select SOC_EMMA2RH | 
|  | select HW_HAS_PCI | 
|  | help | 
|  | This enables support for the NEC Electronics Mark-eins boards. | 
|  |  | 
|  | config MACH_VR41XX | 
|  | bool "NEC VR4100 series based machines" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select SYS_HAS_CPU_VR41XX | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select GPIOLIB | 
|  |  | 
|  | config NXP_STB220 | 
|  | bool "NXP STB220 board" | 
|  | select SOC_PNX833X | 
|  | help | 
|  | Support for NXP Semiconductors STB220 Development Board. | 
|  |  | 
|  | config NXP_STB225 | 
|  | bool "NXP 225 board" | 
|  | select SOC_PNX833X | 
|  | select SOC_PNX8335 | 
|  | help | 
|  | Support for NXP Semiconductors STB225 Development Board. | 
|  |  | 
|  | config PMC_MSP | 
|  | bool "PMC-Sierra MSP chipsets" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select SWAP_IO_SPACE | 
|  | select NO_EXCEPT_FILL | 
|  | select BOOT_RAW | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select IRQ_MIPS_CPU | 
|  | select SERIAL_8250 | 
|  | select SERIAL_8250_CONSOLE | 
|  | select USB_EHCI_BIG_ENDIAN_MMIO | 
|  | select USB_EHCI_BIG_ENDIAN_DESC | 
|  | help | 
|  | This adds support for the PMC-Sierra family of Multi-Service | 
|  | Processor System-On-A-Chips.  These parts include a number | 
|  | of integrated peripherals, interfaces and DSPs in addition to | 
|  | a variety of MIPS cores. | 
|  |  | 
|  | config RALINK | 
|  | bool "Ralink based machines" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select BOOT_RAW | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select USE_OF | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select CLKDEV_LOOKUP | 
|  | select ARCH_HAS_RESET_CONTROLLER | 
|  | select RESET_CONTROLLER | 
|  |  | 
|  | config SGI_IP22 | 
|  | bool "SGI IP22 (Indy/Indigo2)" | 
|  | select FW_ARC | 
|  | select FW_ARC32 | 
|  | select ARCH_MIGHT_HAVE_PC_SERIO | 
|  | select BOOT_ELF32 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DEFAULT_SGI_PARTITION | 
|  | select DMA_NONCOHERENT | 
|  | select HW_HAS_EISA | 
|  | select I8253 | 
|  | select I8259 | 
|  | select IP22_CPU_SCACHE | 
|  | select IRQ_MIPS_CPU | 
|  | select GENERIC_ISA_DMA_SUPPORT_BROKEN | 
|  | select SGI_HAS_I8042 | 
|  | select SGI_HAS_INDYDOG | 
|  | select SGI_HAS_HAL2 | 
|  | select SGI_HAS_SEEQ | 
|  | select SGI_HAS_WD93 | 
|  | select SGI_HAS_ZILOG | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_R4X00 | 
|  | select SYS_HAS_CPU_R5000 | 
|  | # | 
|  | # Disable EARLY_PRINTK for now since it leads to overwritten prom | 
|  | # memory during early boot on some machines. | 
|  | # | 
|  | # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com | 
|  | # for a more details discussion | 
|  | # | 
|  | # select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | help | 
|  | This are the SGI Indy, Challenge S and Indigo2, as well as certain | 
|  | OEM variants like the Tandem CMN B006S. To compile a Linux kernel | 
|  | that runs on these, say Y here. | 
|  |  | 
|  | config SGI_IP27 | 
|  | bool "SGI IP27 (Origin200/2000)" | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  | select FW_ARC | 
|  | select FW_ARC64 | 
|  | select BOOT_ELF64 | 
|  | select DEFAULT_SGI_PARTITION | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select HW_HAS_PCI | 
|  | select NR_CPUS_DEFAULT_64 | 
|  | select SYS_HAS_CPU_R10000 | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_NUMA | 
|  | select SYS_SUPPORTS_SMP | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | help | 
|  | This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics | 
|  | workstations.  To compile a Linux kernel that runs on these, say Y | 
|  | here. | 
|  |  | 
|  | config SGI_IP28 | 
|  | bool "SGI IP28 (Indigo2 R10k)" | 
|  | select FW_ARC | 
|  | select FW_ARC64 | 
|  | select ARCH_MIGHT_HAVE_PC_SERIO | 
|  | select BOOT_ELF64 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DEFAULT_SGI_PARTITION | 
|  | select DMA_NONCOHERENT | 
|  | select GENERIC_ISA_DMA_SUPPORT_BROKEN | 
|  | select IRQ_MIPS_CPU | 
|  | select HW_HAS_EISA | 
|  | select I8253 | 
|  | select I8259 | 
|  | select SGI_HAS_I8042 | 
|  | select SGI_HAS_INDYDOG | 
|  | select SGI_HAS_HAL2 | 
|  | select SGI_HAS_SEEQ | 
|  | select SGI_HAS_WD93 | 
|  | select SGI_HAS_ZILOG | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_R10000 | 
|  | # | 
|  | # Disable EARLY_PRINTK for now since it leads to overwritten prom | 
|  | # memory during early boot on some machines. | 
|  | # | 
|  | # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com | 
|  | # for a more details discussion | 
|  | # | 
|  | # select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | help | 
|  | This is the SGI Indigo2 with R10000 processor.  To compile a Linux | 
|  | kernel that runs on these, say Y here. | 
|  |  | 
|  | config SGI_IP32 | 
|  | bool "SGI IP32 (O2)" | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  | select FW_ARC | 
|  | select FW_ARC32 | 
|  | select BOOT_ELF32 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select R5000_CPU_SCACHE | 
|  | select RM7000_CPU_SCACHE | 
|  | select SYS_HAS_CPU_R5000 | 
|  | select SYS_HAS_CPU_R10000 if BROKEN | 
|  | select SYS_HAS_CPU_RM7000 | 
|  | select SYS_HAS_CPU_NEVADA | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | help | 
|  | If you want this kernel to run on SGI O2 workstation, say Y here. | 
|  |  | 
|  | config SIBYTE_CRHINE | 
|  | bool "Sibyte BCM91120C-CRhine" | 
|  | select BOOT_ELF32 | 
|  | select SIBYTE_BCM1120 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | config SIBYTE_CARMEL | 
|  | bool "Sibyte BCM91120x-Carmel" | 
|  | select BOOT_ELF32 | 
|  | select SIBYTE_BCM1120 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | config SIBYTE_CRHONE | 
|  | bool "Sibyte BCM91125C-CRhone" | 
|  | select BOOT_ELF32 | 
|  | select SIBYTE_BCM1125 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | config SIBYTE_RHONE | 
|  | bool "Sibyte BCM91125E-Rhone" | 
|  | select BOOT_ELF32 | 
|  | select SIBYTE_BCM1125H | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | config SIBYTE_SWARM | 
|  | bool "Sibyte BCM91250A-SWARM" | 
|  | select BOOT_ELF32 | 
|  | select HAVE_PATA_PLATFORM | 
|  | select SIBYTE_SB1250 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select ZONE_DMA32 if 64BIT | 
|  | select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI | 
|  |  | 
|  | config SIBYTE_LITTLESUR | 
|  | bool "Sibyte BCM91250C2-LittleSur" | 
|  | select BOOT_ELF32 | 
|  | select HAVE_PATA_PLATFORM | 
|  | select SIBYTE_SB1250 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select ZONE_DMA32 if 64BIT | 
|  |  | 
|  | config SIBYTE_SENTOSA | 
|  | bool "Sibyte BCM91250E-Sentosa" | 
|  | select BOOT_ELF32 | 
|  | select SIBYTE_SB1250 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI | 
|  |  | 
|  | config SIBYTE_BIGSUR | 
|  | bool "Sibyte BCM91480B-BigSur" | 
|  | select BOOT_ELF32 | 
|  | select NR_CPUS_DEFAULT_4 | 
|  | select SIBYTE_BCM1x80 | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_SB1 | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select ZONE_DMA32 if 64BIT | 
|  | select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI | 
|  |  | 
|  | config SNI_RM | 
|  | bool "SNI RM200/300/400" | 
|  | select FW_ARC if CPU_LITTLE_ENDIAN | 
|  | select FW_ARC32 if CPU_LITTLE_ENDIAN | 
|  | select FW_SNIPROM if CPU_BIG_ENDIAN | 
|  | select ARCH_MAY_HAVE_PC_FDC | 
|  | select ARCH_MIGHT_HAVE_PC_PARPORT | 
|  | select ARCH_MIGHT_HAVE_PC_SERIO | 
|  | select BOOT_ELF32 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN | 
|  | select DMA_NONCOHERENT | 
|  | select GENERIC_ISA_DMA | 
|  | select HAVE_PCSPKR_PLATFORM | 
|  | select HW_HAS_EISA | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select I8253 | 
|  | select I8259 | 
|  | select ISA | 
|  | select SWAP_IO_SPACE if CPU_BIG_ENDIAN | 
|  | select SYS_HAS_CPU_R4X00 | 
|  | select SYS_HAS_CPU_R5000 | 
|  | select SYS_HAS_CPU_R10000 | 
|  | select R5000_CPU_SCACHE | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | help | 
|  | The SNI RM200/300/400 are MIPS-based machines manufactured by | 
|  | Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid | 
|  | Technology and now in turn merged with Fujitsu.  Say Y here to | 
|  | support this machine type. | 
|  |  | 
|  | config MACH_TX39XX | 
|  | bool "Toshiba TX39 series based machines" | 
|  |  | 
|  | config MACH_TX49XX | 
|  | bool "Toshiba TX49 series based machines" | 
|  |  | 
|  | config MIKROTIK_RB532 | 
|  | bool "Mikrotik RB532 boards" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select HW_HAS_PCI | 
|  | select IRQ_MIPS_CPU | 
|  | select SYS_HAS_CPU_MIPS32_R1 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SWAP_IO_SPACE | 
|  | select BOOT_RAW | 
|  | select GPIOLIB | 
|  | select MIPS_L1_CACHE_SHIFT_4 | 
|  | help | 
|  | Support the Mikrotik(tm) RouterBoard 532 series, | 
|  | based on the IDT RC32434 SoC. | 
|  |  | 
|  | config CAVIUM_OCTEON_SOC | 
|  | bool "Cavium Networks Octeon SoC based boards" | 
|  | select CEVT_R4K | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  | select HAS_RAPIDIO | 
|  | select PHYS_ADDR_T_64BIT | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select EDAC_SUPPORT | 
|  | select EDAC_ATOMIC_SCRUB | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_HAS_CPU_CAVIUM_OCTEON | 
|  | select HW_HAS_PCI | 
|  | select ZONE_DMA32 | 
|  | select HOLES_IN_ZONE | 
|  | select GPIOLIB | 
|  | select LIBFDT | 
|  | select USE_OF | 
|  | select ARCH_SPARSEMEM_ENABLE | 
|  | select SYS_SUPPORTS_SMP | 
|  | select NR_CPUS_DEFAULT_64 | 
|  | select MIPS_NR_CPU_NR_MAP_1024 | 
|  | select BUILTIN_DTB | 
|  | select MTD_COMPLEX_MAPPINGS | 
|  | select SWIOTLB | 
|  | select SYS_SUPPORTS_RELOCATABLE | 
|  | help | 
|  | This option supports all of the Octeon reference boards from Cavium | 
|  | Networks. It builds a kernel that dynamically determines the Octeon | 
|  | CPU type and supports all known board reference implementations. | 
|  | Some of the supported boards are: | 
|  | EBT3000 | 
|  | EBH3000 | 
|  | EBH3100 | 
|  | Thunder | 
|  | Kodama | 
|  | Hikari | 
|  | Say Y here for most Octeon reference boards. | 
|  |  | 
|  | config NLM_XLR_BOARD | 
|  | bool "Netlogic XLR/XLS based systems" | 
|  | select BOOT_ELF32 | 
|  | select NLM_COMMON | 
|  | select SYS_HAS_CPU_XLR | 
|  | select SYS_SUPPORTS_SMP | 
|  | select HW_HAS_PCI | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select PHYS_ADDR_T_64BIT | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select NR_CPUS_DEFAULT_32 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select IRQ_MIPS_CPU | 
|  | select ZONE_DMA32 if 64BIT | 
|  | select SYNC_R4K | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select SYS_SUPPORTS_ZBOOT_UART16550 | 
|  | help | 
|  | Support for systems based on Netlogic XLR and XLS processors. | 
|  | Say Y here if you have a XLR or XLS based board. | 
|  |  | 
|  | config NLM_XLP_BOARD | 
|  | bool "Netlogic XLP based systems" | 
|  | select BOOT_ELF32 | 
|  | select NLM_COMMON | 
|  | select SYS_HAS_CPU_XLP | 
|  | select SYS_SUPPORTS_SMP | 
|  | select HW_HAS_PCI | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select PHYS_ADDR_T_64BIT | 
|  | select GPIOLIB | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_HIGHMEM | 
|  | select NR_CPUS_DEFAULT_32 | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select IRQ_MIPS_CPU | 
|  | select ZONE_DMA32 if 64BIT | 
|  | select SYNC_R4K | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select USE_OF | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  | select SYS_SUPPORTS_ZBOOT_UART16550 | 
|  | help | 
|  | This board is based on Netlogic XLP Processor. | 
|  | Say Y here if you have a XLP based board. | 
|  |  | 
|  | config MIPS_PARAVIRT | 
|  | bool "Para-Virtualized guest system" | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_SMP | 
|  | select NR_CPUS_DEFAULT_4 | 
|  | select SYS_HAS_EARLY_PRINTK | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_HAS_CPU_MIPS64_R2 | 
|  | select SYS_HAS_CPU_CAVIUM_OCTEON | 
|  | select HW_HAS_PCI | 
|  | select SWAP_IO_SPACE | 
|  | help | 
|  | This option supports guest running under ???? | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | source "arch/mips/alchemy/Kconfig" | 
|  | source "arch/mips/ath25/Kconfig" | 
|  | source "arch/mips/ath79/Kconfig" | 
|  | source "arch/mips/bcm47xx/Kconfig" | 
|  | source "arch/mips/bcm63xx/Kconfig" | 
|  | source "arch/mips/bmips/Kconfig" | 
|  | source "arch/mips/generic/Kconfig" | 
|  | source "arch/mips/jazz/Kconfig" | 
|  | source "arch/mips/jz4740/Kconfig" | 
|  | source "arch/mips/lantiq/Kconfig" | 
|  | source "arch/mips/lasat/Kconfig" | 
|  | source "arch/mips/pic32/Kconfig" | 
|  | source "arch/mips/pistachio/Kconfig" | 
|  | source "arch/mips/pmcs-msp71xx/Kconfig" | 
|  | source "arch/mips/ralink/Kconfig" | 
|  | source "arch/mips/sgi-ip27/Kconfig" | 
|  | source "arch/mips/sibyte/Kconfig" | 
|  | source "arch/mips/txx9/Kconfig" | 
|  | source "arch/mips/vr41xx/Kconfig" | 
|  | source "arch/mips/cavium-octeon/Kconfig" | 
|  | source "arch/mips/loongson32/Kconfig" | 
|  | source "arch/mips/loongson64/Kconfig" | 
|  | source "arch/mips/netlogic/Kconfig" | 
|  | source "arch/mips/paravirt/Kconfig" | 
|  |  | 
|  | endmenu | 
|  |  | 
|  | config RWSEM_GENERIC_SPINLOCK | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config RWSEM_XCHGADD_ALGORITHM | 
|  | bool | 
|  |  | 
|  | config GENERIC_HWEIGHT | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config GENERIC_CALIBRATE_DELAY | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config SCHED_OMIT_FRAME_POINTER | 
|  | bool | 
|  | default y | 
|  |  | 
|  | # | 
|  | # Select some configuration options automatically based on user selections. | 
|  | # | 
|  | config FW_ARC | 
|  | bool | 
|  |  | 
|  | config ARCH_MAY_HAVE_PC_FDC | 
|  | bool | 
|  |  | 
|  | config BOOT_RAW | 
|  | bool | 
|  |  | 
|  | config CEVT_BCM1480 | 
|  | bool | 
|  |  | 
|  | config CEVT_DS1287 | 
|  | bool | 
|  |  | 
|  | config CEVT_GT641XX | 
|  | bool | 
|  |  | 
|  | config CEVT_R4K | 
|  | bool | 
|  |  | 
|  | config CEVT_SB1250 | 
|  | bool | 
|  |  | 
|  | config CEVT_TXX9 | 
|  | bool | 
|  |  | 
|  | config CSRC_BCM1480 | 
|  | bool | 
|  |  | 
|  | config CSRC_IOASIC | 
|  | bool | 
|  |  | 
|  | config CSRC_R4K | 
|  | bool | 
|  |  | 
|  | config CSRC_SB1250 | 
|  | bool | 
|  |  | 
|  | config MIPS_CLOCK_VSYSCALL | 
|  | def_bool CSRC_R4K || CLKSRC_MIPS_GIC | 
|  |  | 
|  | config GPIO_TXX9 | 
|  | select GPIOLIB | 
|  | bool | 
|  |  | 
|  | config FW_CFE | 
|  | bool | 
|  |  | 
|  | config ARCH_SUPPORTS_UPROBES | 
|  | bool | 
|  |  | 
|  | config DMA_MAYBE_COHERENT | 
|  | select DMA_NONCOHERENT | 
|  | bool | 
|  |  | 
|  | config DMA_PERDEV_COHERENT | 
|  | bool | 
|  | select DMA_MAYBE_COHERENT | 
|  |  | 
|  | config DMA_NONCOHERENT | 
|  | bool | 
|  | select ARCH_HAS_SYNC_DMA_FOR_DEVICE | 
|  | select ARCH_HAS_SYNC_DMA_FOR_CPU | 
|  | select NEED_DMA_MAP_STATE | 
|  | select DMA_NONCOHERENT_MMAP | 
|  | select DMA_NONCOHERENT_CACHE_SYNC | 
|  | select DMA_NONCOHERENT_OPS | 
|  |  | 
|  | config SYS_HAS_EARLY_PRINTK | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_HOTPLUG_CPU | 
|  | bool | 
|  |  | 
|  | config MIPS_BONITO64 | 
|  | bool | 
|  |  | 
|  | config MIPS_MSC | 
|  | bool | 
|  |  | 
|  | config MIPS_NILE4 | 
|  | bool | 
|  |  | 
|  | config SYNC_R4K | 
|  | bool | 
|  |  | 
|  | config MIPS_MACHINE | 
|  | def_bool n | 
|  |  | 
|  | config NO_IOPORT_MAP | 
|  | def_bool n | 
|  |  | 
|  | config GENERIC_CSUM | 
|  | bool | 
|  |  | 
|  | config GENERIC_ISA_DMA | 
|  | bool | 
|  | select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n | 
|  | select ISA_DMA_API | 
|  |  | 
|  | config GENERIC_ISA_DMA_SUPPORT_BROKEN | 
|  | bool | 
|  | select GENERIC_ISA_DMA | 
|  |  | 
|  | config ISA_DMA_API | 
|  | bool | 
|  |  | 
|  | config HOLES_IN_ZONE | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_RELOCATABLE | 
|  | bool | 
|  | help | 
|  | Selected if the platform supports relocating the kernel. | 
|  | The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF | 
|  | to allow access to command line and entropy sources. | 
|  |  | 
|  | config MIPS_CBPF_JIT | 
|  | def_bool y | 
|  | depends on BPF_JIT && HAVE_CBPF_JIT | 
|  |  | 
|  | config MIPS_EBPF_JIT | 
|  | def_bool y | 
|  | depends on BPF_JIT && HAVE_EBPF_JIT | 
|  |  | 
|  |  | 
|  | # | 
|  | # Endianness selection.  Sufficiently obscure so many users don't know what to | 
|  | # answer,so we try hard to limit the available choices.  Also the use of a | 
|  | # choice statement should be more obvious to the user. | 
|  | # | 
|  | choice | 
|  | prompt "Endianness selection" | 
|  | help | 
|  | Some MIPS machines can be configured for either little or big endian | 
|  | byte order. These modes require different kernels and a different | 
|  | Linux distribution.  In general there is one preferred byteorder for a | 
|  | particular system but some systems are just as commonly used in the | 
|  | one or the other endianness. | 
|  |  | 
|  | config CPU_BIG_ENDIAN | 
|  | bool "Big endian" | 
|  | depends on SYS_SUPPORTS_BIG_ENDIAN | 
|  |  | 
|  | config CPU_LITTLE_ENDIAN | 
|  | bool "Little endian" | 
|  | depends on SYS_SUPPORTS_LITTLE_ENDIAN | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | config EXPORT_UASM | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_APM_EMULATION | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_BIG_ENDIAN | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_HUGETLBFS | 
|  | bool | 
|  | depends on CPU_SUPPORTS_HUGEPAGES && 64BIT | 
|  | default y | 
|  |  | 
|  | config MIPS_HUGE_TLB_SUPPORT | 
|  | def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE | 
|  |  | 
|  | config IRQ_CPU_RM7K | 
|  | bool | 
|  |  | 
|  | config IRQ_MSP_SLP | 
|  | bool | 
|  |  | 
|  | config IRQ_MSP_CIC | 
|  | bool | 
|  |  | 
|  | config IRQ_TXX9 | 
|  | bool | 
|  |  | 
|  | config IRQ_GT641XX | 
|  | bool | 
|  |  | 
|  | config PCI_GT64XXX_PCI0 | 
|  | bool | 
|  |  | 
|  | config NO_EXCEPT_FILL | 
|  | bool | 
|  |  | 
|  | config SOC_EMMA2RH | 
|  | bool | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select SWAP_IO_SPACE | 
|  | select SYS_HAS_CPU_R5500 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_64BIT_KERNEL | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  |  | 
|  | config SOC_PNX833X | 
|  | bool | 
|  | select CEVT_R4K | 
|  | select CSRC_R4K | 
|  | select IRQ_MIPS_CPU | 
|  | select DMA_NONCOHERENT | 
|  | select SYS_HAS_CPU_MIPS32_R2 | 
|  | select SYS_SUPPORTS_32BIT_KERNEL | 
|  | select SYS_SUPPORTS_LITTLE_ENDIAN | 
|  | select SYS_SUPPORTS_BIG_ENDIAN | 
|  | select SYS_SUPPORTS_MIPS16 | 
|  | select CPU_MIPSR2_IRQ_VI | 
|  |  | 
|  | config SOC_PNX8335 | 
|  | bool | 
|  | select SOC_PNX833X | 
|  |  | 
|  | config MIPS_SPRAM | 
|  | bool | 
|  |  | 
|  | config SWAP_IO_SPACE | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_INDYDOG | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_HAL2 | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_SEEQ | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_WD93 | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_ZILOG | 
|  | bool | 
|  |  | 
|  | config SGI_HAS_I8042 | 
|  | bool | 
|  |  | 
|  | config DEFAULT_SGI_PARTITION | 
|  | bool | 
|  |  | 
|  | config FW_ARC32 | 
|  | bool | 
|  |  | 
|  | config FW_SNIPROM | 
|  | bool | 
|  |  | 
|  | config BOOT_ELF32 | 
|  | bool | 
|  |  | 
|  | config MIPS_L1_CACHE_SHIFT_4 | 
|  | bool | 
|  |  | 
|  | config MIPS_L1_CACHE_SHIFT_5 | 
|  | bool | 
|  |  | 
|  | config MIPS_L1_CACHE_SHIFT_6 | 
|  | bool | 
|  |  | 
|  | config MIPS_L1_CACHE_SHIFT_7 | 
|  | bool | 
|  |  | 
|  | config MIPS_L1_CACHE_SHIFT | 
|  | int | 
|  | default "7" if MIPS_L1_CACHE_SHIFT_7 | 
|  | default "6" if MIPS_L1_CACHE_SHIFT_6 | 
|  | default "5" if MIPS_L1_CACHE_SHIFT_5 | 
|  | default "4" if MIPS_L1_CACHE_SHIFT_4 | 
|  | default "5" | 
|  |  | 
|  | config HAVE_STD_PC_SERIAL_PORT | 
|  | bool | 
|  |  | 
|  | config ARC_CONSOLE | 
|  | bool "ARC console support" | 
|  | depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) | 
|  |  | 
|  | config ARC_MEMORY | 
|  | bool | 
|  | depends on MACH_JAZZ || SNI_RM || SGI_IP32 | 
|  | default y | 
|  |  | 
|  | config ARC_PROMLIB | 
|  | bool | 
|  | depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 | 
|  | default y | 
|  |  | 
|  | config FW_ARC64 | 
|  | bool | 
|  |  | 
|  | config BOOT_ELF64 | 
|  | bool | 
|  |  | 
|  | menu "CPU selection" | 
|  |  | 
|  | choice | 
|  | prompt "CPU type" | 
|  | default CPU_R4X00 | 
|  |  | 
|  | config CPU_LOONGSON3 | 
|  | bool "Loongson 3 CPU" | 
|  | depends on SYS_HAS_CPU_LOONGSON3 | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select WEAK_ORDERING | 
|  | select WEAK_REORDERING_BEYOND_LLSC | 
|  | select MIPS_PGD_C0_CONTEXT | 
|  | select MIPS_L1_CACHE_SHIFT_6 | 
|  | select GPIOLIB | 
|  | select SWIOTLB | 
|  | help | 
|  | The Loongson 3 processor implements the MIPS64R2 instruction | 
|  | set with many extensions. | 
|  |  | 
|  | config LOONGSON3_ENHANCEMENT | 
|  | bool "New Loongson 3 CPU Enhancements" | 
|  | default n | 
|  | select CPU_MIPSR2 | 
|  | select CPU_HAS_PREFETCH | 
|  | depends on CPU_LOONGSON3 | 
|  | help | 
|  | New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A | 
|  | R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as | 
|  | FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User | 
|  | Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), | 
|  | Fast TLB refill support, etc. | 
|  |  | 
|  | This option enable those enhancements which are not probed at run | 
|  | time. If you want a generic kernel to run on all Loongson 3 machines, | 
|  | please say 'N' here. If you want a high-performance kernel to run on | 
|  | new Loongson 3 machines only, please say 'Y' here. | 
|  |  | 
|  | config CPU_LOONGSON2E | 
|  | bool "Loongson 2E" | 
|  | depends on SYS_HAS_CPU_LOONGSON2E | 
|  | select CPU_LOONGSON2 | 
|  | help | 
|  | The Loongson 2E processor implements the MIPS III instruction set | 
|  | with many extensions. | 
|  |  | 
|  | It has an internal FPGA northbridge, which is compatible to | 
|  | bonito64. | 
|  |  | 
|  | config CPU_LOONGSON2F | 
|  | bool "Loongson 2F" | 
|  | depends on SYS_HAS_CPU_LOONGSON2F | 
|  | select CPU_LOONGSON2 | 
|  | select GPIOLIB | 
|  | help | 
|  | The Loongson 2F processor implements the MIPS III instruction set | 
|  | with many extensions. | 
|  |  | 
|  | Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller | 
|  | have a similar programming interface with FPGA northbridge used in | 
|  | Loongson2E. | 
|  |  | 
|  | config CPU_LOONGSON1B | 
|  | bool "Loongson 1B" | 
|  | depends on SYS_HAS_CPU_LOONGSON1B | 
|  | select CPU_LOONGSON1 | 
|  | select LEDS_GPIO_REGISTER | 
|  | help | 
|  | The Loongson 1B is a 32-bit SoC, which implements the MIPS32 | 
|  | Release 1 instruction set and part of the MIPS32 Release 2 | 
|  | instruction set. | 
|  |  | 
|  | config CPU_LOONGSON1C | 
|  | bool "Loongson 1C" | 
|  | depends on SYS_HAS_CPU_LOONGSON1C | 
|  | select CPU_LOONGSON1 | 
|  | select LEDS_GPIO_REGISTER | 
|  | help | 
|  | The Loongson 1C is a 32-bit SoC, which implements the MIPS32 | 
|  | Release 1 instruction set and part of the MIPS32 Release 2 | 
|  | instruction set. | 
|  |  | 
|  | config CPU_MIPS32_R1 | 
|  | bool "MIPS32 Release 1" | 
|  | depends on SYS_HAS_CPU_MIPS32_R1 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | help | 
|  | Choose this option to build a kernel for release 1 or later of the | 
|  | MIPS32 architecture.  Most modern embedded systems with a 32-bit | 
|  | MIPS processor are based on a MIPS32 processor.  If you know the | 
|  | specific type of processor in your system, choose those that one | 
|  | otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. | 
|  | Release 2 of the MIPS32 architecture is available since several | 
|  | years so chances are you even have a MIPS32 Release 2 processor | 
|  | in which case you should choose CPU_MIPS32_R2 instead for better | 
|  | performance. | 
|  |  | 
|  | config CPU_MIPS32_R2 | 
|  | bool "MIPS32 Release 2" | 
|  | depends on SYS_HAS_CPU_MIPS32_R2 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_MSA | 
|  | select HAVE_KVM | 
|  | help | 
|  | Choose this option to build a kernel for release 2 or later of the | 
|  | MIPS32 architecture.  Most modern embedded systems with a 32-bit | 
|  | MIPS processor are based on a MIPS32 processor.  If you know the | 
|  | specific type of processor in your system, choose those that one | 
|  | otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. | 
|  |  | 
|  | config CPU_MIPS32_R6 | 
|  | bool "MIPS32 Release 6" | 
|  | depends on SYS_HAS_CPU_MIPS32_R6 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_MSA | 
|  | select GENERIC_CSUM | 
|  | select HAVE_KVM | 
|  | select MIPS_O32_FP64_SUPPORT | 
|  | help | 
|  | Choose this option to build a kernel for release 6 or later of the | 
|  | MIPS32 architecture.  New MIPS processors, starting with the Warrior | 
|  | family, are based on a MIPS32r6 processor. If you own an older | 
|  | processor, you probably need to select MIPS32r1 or MIPS32r2 instead. | 
|  |  | 
|  | config CPU_MIPS64_R1 | 
|  | bool "MIPS64 Release 1" | 
|  | depends on SYS_HAS_CPU_MIPS64_R1 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | Choose this option to build a kernel for release 1 or later of the | 
|  | MIPS64 architecture.  Many modern embedded systems with a 64-bit | 
|  | MIPS processor are based on a MIPS64 processor.  If you know the | 
|  | specific type of processor in your system, choose those that one | 
|  | otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. | 
|  | Release 2 of the MIPS64 architecture is available since several | 
|  | years so chances are you even have a MIPS64 Release 2 processor | 
|  | in which case you should choose CPU_MIPS64_R2 instead for better | 
|  | performance. | 
|  |  | 
|  | config CPU_MIPS64_R2 | 
|  | bool "MIPS64 Release 2" | 
|  | depends on SYS_HAS_CPU_MIPS64_R2 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select CPU_SUPPORTS_MSA | 
|  | select HAVE_KVM | 
|  | help | 
|  | Choose this option to build a kernel for release 2 or later of the | 
|  | MIPS64 architecture.  Many modern embedded systems with a 64-bit | 
|  | MIPS processor are based on a MIPS64 processor.  If you know the | 
|  | specific type of processor in your system, choose those that one | 
|  | otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. | 
|  |  | 
|  | config CPU_MIPS64_R6 | 
|  | bool "MIPS64 Release 6" | 
|  | depends on SYS_HAS_CPU_MIPS64_R6 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_MSA | 
|  | select GENERIC_CSUM | 
|  | select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 | 
|  | select HAVE_KVM | 
|  | help | 
|  | Choose this option to build a kernel for release 6 or later of the | 
|  | MIPS64 architecture.  New MIPS processors, starting with the Warrior | 
|  | family, are based on a MIPS64r6 processor. If you own an older | 
|  | processor, you probably need to select MIPS64r1 or MIPS64r2 instead. | 
|  |  | 
|  | config CPU_R3000 | 
|  | bool "R3000" | 
|  | depends on SYS_HAS_CPU_R3000 | 
|  | select CPU_HAS_WB | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | help | 
|  | Please make sure to pick the right CPU type. Linux/MIPS is not | 
|  | designed to be generic, i.e. Kernels compiled for R3000 CPUs will | 
|  | *not* work on R4000 machines and vice versa.  However, since most | 
|  | of the supported machines have an R4000 (or similar) CPU, R4x00 | 
|  | might be a safe bet.  If the resulting kernel does not work, | 
|  | try to recompile with R3000. | 
|  |  | 
|  | config CPU_TX39XX | 
|  | bool "R39XX" | 
|  | depends on SYS_HAS_CPU_TX39XX | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  |  | 
|  | config CPU_VR41XX | 
|  | bool "R41xx" | 
|  | depends on SYS_HAS_CPU_VR41XX | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | help | 
|  | The options selects support for the NEC VR4100 series of processors. | 
|  | Only choose this option if you have one of these processors as a | 
|  | kernel built with this option will not run on any other type of | 
|  | processor or vice versa. | 
|  |  | 
|  | config CPU_R4300 | 
|  | bool "R4300" | 
|  | depends on SYS_HAS_CPU_R4300 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | help | 
|  | MIPS Technologies R4300-series processors. | 
|  |  | 
|  | config CPU_R4X00 | 
|  | bool "R4x00" | 
|  | depends on SYS_HAS_CPU_R4X00 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | MIPS Technologies R4000-series processors other than 4300, including | 
|  | the R4000, R4400, R4600, and 4700. | 
|  |  | 
|  | config CPU_TX49XX | 
|  | bool "R49XX" | 
|  | depends on SYS_HAS_CPU_TX49XX | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  |  | 
|  | config CPU_R5000 | 
|  | bool "R5000" | 
|  | depends on SYS_HAS_CPU_R5000 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | MIPS Technologies R5000-series processors other than the Nevada. | 
|  |  | 
|  | config CPU_R5432 | 
|  | bool "R5432" | 
|  | depends on SYS_HAS_CPU_R5432 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  |  | 
|  | config CPU_R5500 | 
|  | bool "R5500" | 
|  | depends on SYS_HAS_CPU_R5500 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV | 
|  | instruction set. | 
|  |  | 
|  | config CPU_NEVADA | 
|  | bool "RM52xx" | 
|  | depends on SYS_HAS_CPU_NEVADA | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | QED / PMC-Sierra RM52xx-series ("Nevada") processors. | 
|  |  | 
|  | config CPU_R8000 | 
|  | bool "R8000" | 
|  | depends on SYS_HAS_CPU_R8000 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | help | 
|  | MIPS Technologies R8000 processors.  Note these processors are | 
|  | uncommon and the support for them is incomplete. | 
|  |  | 
|  | config CPU_R10000 | 
|  | bool "R10000" | 
|  | depends on SYS_HAS_CPU_R10000 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | help | 
|  | MIPS Technologies R10000-series processors. | 
|  |  | 
|  | config CPU_RM7000 | 
|  | bool "RM7000" | 
|  | depends on SYS_HAS_CPU_RM7000 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  |  | 
|  | config CPU_SB1 | 
|  | bool "SB1" | 
|  | depends on SYS_HAS_CPU_SB1 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select WEAK_ORDERING | 
|  |  | 
|  | config CPU_CAVIUM_OCTEON | 
|  | bool "Cavium Octeon processor" | 
|  | depends on SYS_HAS_CPU_CAVIUM_OCTEON | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select WEAK_ORDERING | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | select HAVE_KVM | 
|  | help | 
|  | The Cavium Octeon processor is a highly integrated chip containing | 
|  | many ethernet hardware widgets for networking tasks. The processor | 
|  | can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. | 
|  | Full details can be found at http://www.caviumnetworks.com. | 
|  |  | 
|  | config CPU_BMIPS | 
|  | bool "Broadcom BMIPS" | 
|  | depends on SYS_HAS_CPU_BMIPS | 
|  | select CPU_MIPS32 | 
|  | select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 | 
|  | select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 | 
|  | select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 | 
|  | select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select DMA_NONCOHERENT | 
|  | select IRQ_MIPS_CPU | 
|  | select SWAP_IO_SPACE | 
|  | select WEAK_ORDERING | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_CPUFREQ | 
|  | select MIPS_EXTERNAL_TIMER | 
|  | help | 
|  | Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. | 
|  |  | 
|  | config CPU_XLR | 
|  | bool "Netlogic XLR SoC" | 
|  | depends on SYS_HAS_CPU_XLR | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select WEAK_ORDERING | 
|  | select WEAK_REORDERING_BEYOND_LLSC | 
|  | help | 
|  | Netlogic Microsystems XLR/XLS processors. | 
|  |  | 
|  | config CPU_XLP | 
|  | bool "Netlogic XLP SoC" | 
|  | depends on SYS_HAS_CPU_XLP | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select WEAK_ORDERING | 
|  | select WEAK_REORDERING_BEYOND_LLSC | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_MIPSR2 | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select MIPS_ASID_BITS_VARIABLE | 
|  | help | 
|  | Netlogic Microsystems XLP processors. | 
|  | endchoice | 
|  |  | 
|  | config CPU_MIPS32_3_5_FEATURES | 
|  | bool "MIPS32 Release 3.5 Features" | 
|  | depends on SYS_HAS_CPU_MIPS32_R3_5 | 
|  | depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 | 
|  | help | 
|  | Choose this option to build a kernel for release 2 or later of the | 
|  | MIPS32 architecture including features from the 3.5 release such as | 
|  | support for Enhanced Virtual Addressing (EVA). | 
|  |  | 
|  | config CPU_MIPS32_3_5_EVA | 
|  | bool "Enhanced Virtual Addressing (EVA)" | 
|  | depends on CPU_MIPS32_3_5_FEATURES | 
|  | select EVA | 
|  | default y | 
|  | help | 
|  | Choose this option if you want to enable the Enhanced Virtual | 
|  | Addressing (EVA) on your MIPS32 core (such as proAptiv). | 
|  | One of its primary benefits is an increase in the maximum size | 
|  | of lowmem (up to 3GB). If unsure, say 'N' here. | 
|  |  | 
|  | config CPU_MIPS32_R5_FEATURES | 
|  | bool "MIPS32 Release 5 Features" | 
|  | depends on SYS_HAS_CPU_MIPS32_R5 | 
|  | depends on CPU_MIPS32_R2 | 
|  | help | 
|  | Choose this option to build a kernel for release 2 or later of the | 
|  | MIPS32 architecture including features from release 5 such as | 
|  | support for Extended Physical Addressing (XPA). | 
|  |  | 
|  | config CPU_MIPS32_R5_XPA | 
|  | bool "Extended Physical Addressing (XPA)" | 
|  | depends on CPU_MIPS32_R5_FEATURES | 
|  | depends on !EVA | 
|  | depends on !PAGE_SIZE_4KB | 
|  | depends on SYS_SUPPORTS_HIGHMEM | 
|  | select XPA | 
|  | select HIGHMEM | 
|  | select PHYS_ADDR_T_64BIT | 
|  | default n | 
|  | help | 
|  | Choose this option if you want to enable the Extended Physical | 
|  | Addressing (XPA) on your MIPS32 core (such as P5600 series). The | 
|  | benefit is to increase physical addressing equal to or greater | 
|  | than 40 bits. Note that this has the side effect of turning on | 
|  | 64-bit addressing which in turn makes the PTEs 64-bit in size. | 
|  | If unsure, say 'N' here. | 
|  |  | 
|  | if CPU_LOONGSON2F | 
|  | config CPU_NOP_WORKAROUNDS | 
|  | bool | 
|  |  | 
|  | config CPU_JUMP_WORKAROUNDS | 
|  | bool | 
|  |  | 
|  | config CPU_LOONGSON2F_WORKAROUNDS | 
|  | bool "Loongson 2F Workarounds" | 
|  | default y | 
|  | select CPU_NOP_WORKAROUNDS | 
|  | select CPU_JUMP_WORKAROUNDS | 
|  | help | 
|  | Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which | 
|  | require workarounds.  Without workarounds the system may hang | 
|  | unexpectedly.  For more information please refer to the gas | 
|  | -mfix-loongson2f-nop and -mfix-loongson2f-jump options. | 
|  |  | 
|  | Loongson 2F03 and later have fixed these issues and no workarounds | 
|  | are needed.  The workarounds have no significant side effect on them | 
|  | but may decrease the performance of the system so this option should | 
|  | be disabled unless the kernel is intended to be run on 2F01 or 2F02 | 
|  | systems. | 
|  |  | 
|  | If unsure, please say Y. | 
|  | endif # CPU_LOONGSON2F | 
|  |  | 
|  | config SYS_SUPPORTS_ZBOOT | 
|  | bool | 
|  | select HAVE_KERNEL_GZIP | 
|  | select HAVE_KERNEL_BZIP2 | 
|  | select HAVE_KERNEL_LZ4 | 
|  | select HAVE_KERNEL_LZMA | 
|  | select HAVE_KERNEL_LZO | 
|  | select HAVE_KERNEL_XZ | 
|  |  | 
|  | config SYS_SUPPORTS_ZBOOT_UART16550 | 
|  | bool | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  |  | 
|  | config SYS_SUPPORTS_ZBOOT_UART_PROM | 
|  | bool | 
|  | select SYS_SUPPORTS_ZBOOT | 
|  |  | 
|  | config CPU_LOONGSON2 | 
|  | bool | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_64BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_HUGEPAGES | 
|  | select ARCH_HAS_PHYS_TO_DMA | 
|  |  | 
|  | config CPU_LOONGSON1 | 
|  | bool | 
|  | select CPU_MIPS32 | 
|  | select CPU_MIPSR1 | 
|  | select CPU_HAS_PREFETCH | 
|  | select CPU_SUPPORTS_32BIT_KERNEL | 
|  | select CPU_SUPPORTS_HIGHMEM | 
|  | select CPU_SUPPORTS_CPUFREQ | 
|  |  | 
|  | config CPU_BMIPS32_3300 | 
|  | select SMP_UP if SMP | 
|  | bool | 
|  |  | 
|  | config CPU_BMIPS4350 | 
|  | bool | 
|  | select SYS_SUPPORTS_SMP | 
|  | select SYS_SUPPORTS_HOTPLUG_CPU | 
|  |  | 
|  | config CPU_BMIPS4380 | 
|  | bool | 
|  | select MIPS_L1_CACHE_SHIFT_6 | 
|  | select SYS_SUPPORTS_SMP | 
|  | select SYS_SUPPORTS_HOTPLUG_CPU | 
|  | select CPU_HAS_RIXI | 
|  |  | 
|  | config CPU_BMIPS5000 | 
|  | bool | 
|  | select MIPS_CPU_SCACHE | 
|  | select MIPS_L1_CACHE_SHIFT_7 | 
|  | select SYS_SUPPORTS_SMP | 
|  | select SYS_SUPPORTS_HOTPLUG_CPU | 
|  | select CPU_HAS_RIXI | 
|  |  | 
|  | config SYS_HAS_CPU_LOONGSON3 | 
|  | bool | 
|  | select CPU_SUPPORTS_CPUFREQ | 
|  | select CPU_HAS_RIXI | 
|  |  | 
|  | config SYS_HAS_CPU_LOONGSON2E | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_LOONGSON2F | 
|  | bool | 
|  | select CPU_SUPPORTS_CPUFREQ | 
|  | select CPU_SUPPORTS_ADDRWINCFG if 64BIT | 
|  | select CPU_SUPPORTS_UNCACHED_ACCELERATED | 
|  |  | 
|  | config SYS_HAS_CPU_LOONGSON1B | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_LOONGSON1C | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS32_R1 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS32_R2 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS32_R3_5 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS32_R5 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS32_R6 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS64_R1 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS64_R2 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_MIPS64_R6 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R3000 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_TX39XX | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_VR41XX | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R4300 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R4X00 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_TX49XX | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R5000 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R5432 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R5500 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_NEVADA | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R8000 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_R10000 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_RM7000 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_SB1 | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_CAVIUM_OCTEON | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_BMIPS | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_BMIPS32_3300 | 
|  | bool | 
|  | select SYS_HAS_CPU_BMIPS | 
|  |  | 
|  | config SYS_HAS_CPU_BMIPS4350 | 
|  | bool | 
|  | select SYS_HAS_CPU_BMIPS | 
|  |  | 
|  | config SYS_HAS_CPU_BMIPS4380 | 
|  | bool | 
|  | select SYS_HAS_CPU_BMIPS | 
|  |  | 
|  | config SYS_HAS_CPU_BMIPS5000 | 
|  | bool | 
|  | select SYS_HAS_CPU_BMIPS | 
|  |  | 
|  | config SYS_HAS_CPU_XLR | 
|  | bool | 
|  |  | 
|  | config SYS_HAS_CPU_XLP | 
|  | bool | 
|  |  | 
|  | # | 
|  | # CPU may reorder R->R, R->W, W->R, W->W | 
|  | # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC | 
|  | # | 
|  | config WEAK_ORDERING | 
|  | bool | 
|  |  | 
|  | # | 
|  | # CPU may reorder reads and writes beyond LL/SC | 
|  | # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC | 
|  | # | 
|  | config WEAK_REORDERING_BEYOND_LLSC | 
|  | bool | 
|  | endmenu | 
|  |  | 
|  | # | 
|  | # These two indicate any level of the MIPS32 and MIPS64 architecture | 
|  | # | 
|  | config CPU_MIPS32 | 
|  | bool | 
|  | default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 | 
|  |  | 
|  | config CPU_MIPS64 | 
|  | bool | 
|  | default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 | 
|  |  | 
|  | # | 
|  | # These two indicate the revision of the architecture, either Release 1 or Release 2 | 
|  | # | 
|  | config CPU_MIPSR1 | 
|  | bool | 
|  | default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 | 
|  |  | 
|  | config CPU_MIPSR2 | 
|  | bool | 
|  | default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON | 
|  | select CPU_HAS_RIXI | 
|  | select MIPS_SPRAM | 
|  |  | 
|  | config CPU_MIPSR6 | 
|  | bool | 
|  | default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 | 
|  | select CPU_HAS_RIXI | 
|  | select HAVE_ARCH_BITREVERSE | 
|  | select MIPS_ASID_BITS_VARIABLE | 
|  | select MIPS_CRC_SUPPORT | 
|  | select MIPS_SPRAM | 
|  |  | 
|  | config EVA | 
|  | bool | 
|  |  | 
|  | config XPA | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_32BIT_KERNEL | 
|  | bool | 
|  | config SYS_SUPPORTS_64BIT_KERNEL | 
|  | bool | 
|  | config CPU_SUPPORTS_32BIT_KERNEL | 
|  | bool | 
|  | config CPU_SUPPORTS_64BIT_KERNEL | 
|  | bool | 
|  | config CPU_SUPPORTS_CPUFREQ | 
|  | bool | 
|  | config CPU_SUPPORTS_ADDRWINCFG | 
|  | bool | 
|  | config CPU_SUPPORTS_HUGEPAGES | 
|  | bool | 
|  | config CPU_SUPPORTS_UNCACHED_ACCELERATED | 
|  | bool | 
|  | config MIPS_PGD_C0_CONTEXT | 
|  | bool | 
|  | default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP | 
|  |  | 
|  | # | 
|  | # Set to y for ptrace access to watch registers. | 
|  | # | 
|  | config HARDWARE_WATCHPOINTS | 
|  | bool | 
|  | default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 | 
|  |  | 
|  | menu "Kernel type" | 
|  |  | 
|  | choice | 
|  | prompt "Kernel code model" | 
|  | help | 
|  | You should only select this option if you have a workload that | 
|  | actually benefits from 64-bit processing or if your machine has | 
|  | large memory.  You will only be presented a single option in this | 
|  | menu if your system does not support both 32-bit and 64-bit kernels. | 
|  |  | 
|  | config 32BIT | 
|  | bool "32-bit kernel" | 
|  | depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL | 
|  | select TRAD_SIGNALS | 
|  | help | 
|  | Select this option if you want to build a 32-bit kernel. | 
|  |  | 
|  | config 64BIT | 
|  | bool "64-bit kernel" | 
|  | depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL | 
|  | help | 
|  | Select this option if you want to build a 64-bit kernel. | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | config KVM_GUEST | 
|  | bool "KVM Guest Kernel" | 
|  | depends on BROKEN_ON_SMP | 
|  | help | 
|  | Select this option if building a guest kernel for KVM (Trap & Emulate) | 
|  | mode. | 
|  |  | 
|  | config KVM_GUEST_TIMER_FREQ | 
|  | int "Count/Compare Timer Frequency (MHz)" | 
|  | depends on KVM_GUEST | 
|  | default 100 | 
|  | help | 
|  | Set this to non-zero if building a guest kernel for KVM to skip RTC | 
|  | emulation when determining guest CPU Frequency. Instead, the guest's | 
|  | timer frequency is specified directly. | 
|  |  | 
|  | config MIPS_VA_BITS_48 | 
|  | bool "48 bits virtual memory" | 
|  | depends on 64BIT | 
|  | help | 
|  | Support a maximum at least 48 bits of application virtual | 
|  | memory.  Default is 40 bits or less, depending on the CPU. | 
|  | For page sizes 16k and above, this option results in a small | 
|  | memory overhead for page tables.  For 4k page size, a fourth | 
|  | level of page tables is added which imposes both a memory | 
|  | overhead as well as slower TLB fault handling. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | choice | 
|  | prompt "Kernel page size" | 
|  | default PAGE_SIZE_4KB | 
|  |  | 
|  | config PAGE_SIZE_4KB | 
|  | bool "4kB" | 
|  | depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 | 
|  | help | 
|  | This option select the standard 4kB Linux page size.  On some | 
|  | R3000-family processors this is the only available page size.  Using | 
|  | 4kB page size will minimize memory consumption and is therefore | 
|  | recommended for low memory systems. | 
|  |  | 
|  | config PAGE_SIZE_8KB | 
|  | bool "8kB" | 
|  | depends on CPU_R8000 || CPU_CAVIUM_OCTEON | 
|  | depends on !MIPS_VA_BITS_48 | 
|  | help | 
|  | Using 8kB page size will result in higher performance kernel at | 
|  | the price of higher memory consumption.  This option is available | 
|  | only on R8000 and cnMIPS processors.  Note that you will need a | 
|  | suitable Linux distribution to support this. | 
|  |  | 
|  | config PAGE_SIZE_16KB | 
|  | bool "16kB" | 
|  | depends on !CPU_R3000 && !CPU_TX39XX | 
|  | help | 
|  | Using 16kB page size will result in higher performance kernel at | 
|  | the price of higher memory consumption.  This option is available on | 
|  | all non-R3000 family processors.  Note that you will need a suitable | 
|  | Linux distribution to support this. | 
|  |  | 
|  | config PAGE_SIZE_32KB | 
|  | bool "32kB" | 
|  | depends on CPU_CAVIUM_OCTEON | 
|  | depends on !MIPS_VA_BITS_48 | 
|  | help | 
|  | Using 32kB page size will result in higher performance kernel at | 
|  | the price of higher memory consumption.  This option is available | 
|  | only on cnMIPS cores.  Note that you will need a suitable Linux | 
|  | distribution to support this. | 
|  |  | 
|  | config PAGE_SIZE_64KB | 
|  | bool "64kB" | 
|  | depends on !CPU_R3000 && !CPU_TX39XX | 
|  | help | 
|  | Using 64kB page size will result in higher performance kernel at | 
|  | the price of higher memory consumption.  This option is available on | 
|  | all non-R3000 family processor.  Not that at the time of this | 
|  | writing this option is still high experimental. | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | config FORCE_MAX_ZONEORDER | 
|  | int "Maximum zone order" | 
|  | range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB | 
|  | default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB | 
|  | range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB | 
|  | default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB | 
|  | range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB | 
|  | default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB | 
|  | range 11 64 | 
|  | default "11" | 
|  | help | 
|  | The kernel memory allocator divides physically contiguous memory | 
|  | blocks into "zones", where each zone is a power of two number of | 
|  | pages.  This option selects the largest power of two that the kernel | 
|  | keeps in the memory allocator.  If you need to allocate very large | 
|  | blocks of physically contiguous memory, then you may need to | 
|  | increase this value. | 
|  |  | 
|  | This config option is actually maximum order plus one. For example, | 
|  | a value of 11 means that the largest free memory block is 2^10 pages. | 
|  |  | 
|  | The page size is not necessarily 4KB.  Keep this in mind | 
|  | when choosing a value for this option. | 
|  |  | 
|  | config BOARD_SCACHE | 
|  | bool | 
|  |  | 
|  | config IP22_CPU_SCACHE | 
|  | bool | 
|  | select BOARD_SCACHE | 
|  |  | 
|  | # | 
|  | # Support for a MIPS32 / MIPS64 style S-caches | 
|  | # | 
|  | config MIPS_CPU_SCACHE | 
|  | bool | 
|  | select BOARD_SCACHE | 
|  |  | 
|  | config R5000_CPU_SCACHE | 
|  | bool | 
|  | select BOARD_SCACHE | 
|  |  | 
|  | config RM7000_CPU_SCACHE | 
|  | bool | 
|  | select BOARD_SCACHE | 
|  |  | 
|  | config SIBYTE_DMA_PAGEOPS | 
|  | bool "Use DMA to clear/copy pages" | 
|  | depends on CPU_SB1 | 
|  | help | 
|  | Instead of using the CPU to zero and copy pages, use a Data Mover | 
|  | channel.  These DMA channels are otherwise unused by the standard | 
|  | SiByte Linux port.  Seems to give a small performance benefit. | 
|  |  | 
|  | config CPU_HAS_PREFETCH | 
|  | bool | 
|  |  | 
|  | config CPU_GENERIC_DUMP_TLB | 
|  | bool | 
|  | default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) | 
|  |  | 
|  | config CPU_R4K_FPU | 
|  | bool | 
|  | default y if !(CPU_R3000 || CPU_TX39XX) | 
|  |  | 
|  | config CPU_R4K_CACHE_TLB | 
|  | bool | 
|  | default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) | 
|  |  | 
|  | config MIPS_MT_SMP | 
|  | bool "MIPS MT SMP support (1 TC on each available VPE)" | 
|  | default y | 
|  | depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS | 
|  | select CPU_MIPSR2_IRQ_VI | 
|  | select CPU_MIPSR2_IRQ_EI | 
|  | select SYNC_R4K | 
|  | select MIPS_MT | 
|  | select SMP | 
|  | select SMP_UP | 
|  | select SYS_SUPPORTS_SMP | 
|  | select SYS_SUPPORTS_SCHED_SMT | 
|  | select MIPS_PERF_SHARED_TC_COUNTERS | 
|  | help | 
|  | This is a kernel model which is known as SMVP. This is supported | 
|  | on cores with the MT ASE and uses the available VPEs to implement | 
|  | virtual processors which supports SMP. This is equivalent to the | 
|  | Intel Hyperthreading feature. For further information go to | 
|  | <http://www.imgtec.com/mips/mips-multithreading.asp>. | 
|  |  | 
|  | config MIPS_MT | 
|  | bool | 
|  |  | 
|  | config SCHED_SMT | 
|  | bool "SMT (multithreading) scheduler support" | 
|  | depends on SYS_SUPPORTS_SCHED_SMT | 
|  | default n | 
|  | help | 
|  | SMT scheduler support improves the CPU scheduler's decision making | 
|  | when dealing with MIPS MT enabled cores at a cost of slightly | 
|  | increased overhead in some places. If unsure say N here. | 
|  |  | 
|  | config SYS_SUPPORTS_SCHED_SMT | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_MULTITHREADING | 
|  | bool | 
|  |  | 
|  | config MIPS_MT_FPAFF | 
|  | bool "Dynamic FPU affinity for FP-intensive threads" | 
|  | default y | 
|  | depends on MIPS_MT_SMP | 
|  |  | 
|  | config MIPSR2_TO_R6_EMULATOR | 
|  | bool "MIPS R2-to-R6 emulator" | 
|  | depends on CPU_MIPSR6 | 
|  | default y | 
|  | help | 
|  | Choose this option if you want to run non-R6 MIPS userland code. | 
|  | Even if you say 'Y' here, the emulator will still be disabled by | 
|  | default. You can enable it using the 'mipsr2emu' kernel option. | 
|  | The only reason this is a build-time option is to save ~14K from the | 
|  | final kernel image. | 
|  |  | 
|  | config SYS_SUPPORTS_VPE_LOADER | 
|  | bool | 
|  | depends on SYS_SUPPORTS_MULTITHREADING | 
|  | help | 
|  | Indicates that the platform supports the VPE loader, and provides | 
|  | physical_memsize. | 
|  |  | 
|  | config MIPS_VPE_LOADER | 
|  | bool "VPE loader support." | 
|  | depends on SYS_SUPPORTS_VPE_LOADER && MODULES | 
|  | select CPU_MIPSR2_IRQ_VI | 
|  | select CPU_MIPSR2_IRQ_EI | 
|  | select MIPS_MT | 
|  | help | 
|  | Includes a loader for loading an elf relocatable object | 
|  | onto another VPE and running it. | 
|  |  | 
|  | config MIPS_VPE_LOADER_CMP | 
|  | bool | 
|  | default "y" | 
|  | depends on MIPS_VPE_LOADER && MIPS_CMP | 
|  |  | 
|  | config MIPS_VPE_LOADER_MT | 
|  | bool | 
|  | default "y" | 
|  | depends on MIPS_VPE_LOADER && !MIPS_CMP | 
|  |  | 
|  | config MIPS_VPE_LOADER_TOM | 
|  | bool "Load VPE program into memory hidden from linux" | 
|  | depends on MIPS_VPE_LOADER | 
|  | default y | 
|  | help | 
|  | The loader can use memory that is present but has been hidden from | 
|  | Linux using the kernel command line option "mem=xxMB". It's up to | 
|  | you to ensure the amount you put in the option and the space your | 
|  | program requires is less or equal to the amount physically present. | 
|  |  | 
|  | config MIPS_VPE_APSP_API | 
|  | bool "Enable support for AP/SP API (RTLX)" | 
|  | depends on MIPS_VPE_LOADER | 
|  |  | 
|  | config MIPS_VPE_APSP_API_CMP | 
|  | bool | 
|  | default "y" | 
|  | depends on MIPS_VPE_APSP_API && MIPS_CMP | 
|  |  | 
|  | config MIPS_VPE_APSP_API_MT | 
|  | bool | 
|  | default "y" | 
|  | depends on MIPS_VPE_APSP_API && !MIPS_CMP | 
|  |  | 
|  | config MIPS_CMP | 
|  | bool "MIPS CMP framework support (DEPRECATED)" | 
|  | depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 | 
|  | select SMP | 
|  | select SYNC_R4K | 
|  | select SYS_SUPPORTS_SMP | 
|  | select WEAK_ORDERING | 
|  | default n | 
|  | help | 
|  | Select this if you are using a bootloader which implements the "CMP | 
|  | framework" protocol (ie. YAMON) and want your kernel to make use of | 
|  | its ability to start secondary CPUs. | 
|  |  | 
|  | Unless you have a specific need, you should use CONFIG_MIPS_CPS | 
|  | instead of this. | 
|  |  | 
|  | config MIPS_CPS | 
|  | bool "MIPS Coherent Processing System support" | 
|  | depends on SYS_SUPPORTS_MIPS_CPS | 
|  | select MIPS_CM | 
|  | select MIPS_CPS_PM if HOTPLUG_CPU | 
|  | select SMP | 
|  | select SYNC_R4K if (CEVT_R4K || CSRC_R4K) | 
|  | select SYS_SUPPORTS_HOTPLUG_CPU | 
|  | select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 | 
|  | select SYS_SUPPORTS_SMP | 
|  | select WEAK_ORDERING | 
|  | help | 
|  | Select this if you wish to run an SMP kernel across multiple cores | 
|  | within a MIPS Coherent Processing System. When this option is | 
|  | enabled the kernel will probe for other cores and boot them with | 
|  | no external assistance. It is safe to enable this when hardware | 
|  | support is unavailable. | 
|  |  | 
|  | config MIPS_CPS_PM | 
|  | depends on MIPS_CPS | 
|  | bool | 
|  |  | 
|  | config MIPS_CM | 
|  | bool | 
|  | select MIPS_CPC | 
|  |  | 
|  | config MIPS_CPC | 
|  | bool | 
|  |  | 
|  | config SB1_PASS_2_WORKAROUNDS | 
|  | bool | 
|  | depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) | 
|  | default y | 
|  |  | 
|  | config SB1_PASS_2_1_WORKAROUNDS | 
|  | bool | 
|  | depends on CPU_SB1 && CPU_SB1_PASS_2 | 
|  | default y | 
|  |  | 
|  |  | 
|  | choice | 
|  | prompt "SmartMIPS or microMIPS ASE support" | 
|  |  | 
|  | config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS | 
|  | bool "None" | 
|  | help | 
|  | Select this if you want neither microMIPS nor SmartMIPS support | 
|  |  | 
|  | config CPU_HAS_SMARTMIPS | 
|  | depends on SYS_SUPPORTS_SMARTMIPS | 
|  | bool "SmartMIPS" | 
|  | help | 
|  | SmartMIPS is a extension of the MIPS32 architecture aimed at | 
|  | increased security at both hardware and software level for | 
|  | smartcards.  Enabling this option will allow proper use of the | 
|  | SmartMIPS instructions by Linux applications.  However a kernel with | 
|  | this option will not work on a MIPS core without SmartMIPS core.  If | 
|  | you don't know you probably don't have SmartMIPS and should say N | 
|  | here. | 
|  |  | 
|  | config CPU_MICROMIPS | 
|  | depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 | 
|  | bool "microMIPS" | 
|  | help | 
|  | When this option is enabled the kernel will be built using the | 
|  | microMIPS ISA | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | config CPU_HAS_MSA | 
|  | bool "Support for the MIPS SIMD Architecture" | 
|  | depends on CPU_SUPPORTS_MSA | 
|  | depends on 64BIT || MIPS_O32_FP64_SUPPORT | 
|  | help | 
|  | MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers | 
|  | and a set of SIMD instructions to operate on them. When this option | 
|  | is enabled the kernel will support allocating & switching MSA | 
|  | vector register contexts. If you know that your kernel will only be | 
|  | running on CPUs which do not support MSA or that your userland will | 
|  | not be making use of it then you may wish to say N here to reduce | 
|  | the size & complexity of your kernel. | 
|  |  | 
|  | If unsure, say Y. | 
|  |  | 
|  | config CPU_HAS_WB | 
|  | bool | 
|  |  | 
|  | config XKS01 | 
|  | bool | 
|  |  | 
|  | config CPU_HAS_RIXI | 
|  | bool | 
|  |  | 
|  | # | 
|  | # Vectored interrupt mode is an R2 feature | 
|  | # | 
|  | config CPU_MIPSR2_IRQ_VI | 
|  | bool | 
|  |  | 
|  | # | 
|  | # Extended interrupt mode is an R2 feature | 
|  | # | 
|  | config CPU_MIPSR2_IRQ_EI | 
|  | bool | 
|  |  | 
|  | config CPU_HAS_SYNC | 
|  | bool | 
|  | depends on !CPU_R3000 | 
|  | default y | 
|  |  | 
|  | # | 
|  | # CPU non-features | 
|  | # | 
|  | config CPU_DADDI_WORKAROUNDS | 
|  | bool | 
|  |  | 
|  | config CPU_R4000_WORKAROUNDS | 
|  | bool | 
|  | select CPU_R4400_WORKAROUNDS | 
|  |  | 
|  | config CPU_R4400_WORKAROUNDS | 
|  | bool | 
|  |  | 
|  | config MIPS_ASID_SHIFT | 
|  | int | 
|  | default 6 if CPU_R3000 || CPU_TX39XX | 
|  | default 4 if CPU_R8000 | 
|  | default 0 | 
|  |  | 
|  | config MIPS_ASID_BITS | 
|  | int | 
|  | default 0 if MIPS_ASID_BITS_VARIABLE | 
|  | default 6 if CPU_R3000 || CPU_TX39XX | 
|  | default 8 | 
|  |  | 
|  | config MIPS_ASID_BITS_VARIABLE | 
|  | bool | 
|  |  | 
|  | config MIPS_CRC_SUPPORT | 
|  | bool | 
|  |  | 
|  | # | 
|  | # - Highmem only makes sense for the 32-bit kernel. | 
|  | # - The current highmem code will only work properly on physically indexed | 
|  | #   caches such as R3000, SB1, R7000 or those that look like they're virtually | 
|  | #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the | 
|  | #   moment we protect the user and offer the highmem option only on machines | 
|  | #   where it's known to be safe.  This will not offer highmem on a few systems | 
|  | #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically | 
|  | #   indexed CPUs but we're playing safe. | 
|  | # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we | 
|  | #   know they might have memory configurations that could make use of highmem | 
|  | #   support. | 
|  | # | 
|  | config HIGHMEM | 
|  | bool "High Memory Support" | 
|  | depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA | 
|  |  | 
|  | config CPU_SUPPORTS_HIGHMEM | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_HIGHMEM | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_SMARTMIPS | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_MICROMIPS | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_MIPS16 | 
|  | bool | 
|  | help | 
|  | This option must be set if a kernel might be executed on a MIPS16- | 
|  | enabled CPU even if MIPS16 is not actually being used.  In other | 
|  | words, it makes the kernel MIPS16-tolerant. | 
|  |  | 
|  | config CPU_SUPPORTS_MSA | 
|  | bool | 
|  |  | 
|  | config ARCH_FLATMEM_ENABLE | 
|  | def_bool y | 
|  | depends on !NUMA && !CPU_LOONGSON2 | 
|  |  | 
|  | config ARCH_DISCONTIGMEM_ENABLE | 
|  | bool | 
|  | default y if SGI_IP27 | 
|  | help | 
|  | Say Y to support efficient handling of discontiguous physical memory, | 
|  | for architectures which are either NUMA (Non-Uniform Memory Access) | 
|  | or have huge holes in the physical address space for other reasons. | 
|  | See <file:Documentation/vm/numa.rst> for more. | 
|  |  | 
|  | config ARCH_SPARSEMEM_ENABLE | 
|  | bool | 
|  | select SPARSEMEM_STATIC | 
|  |  | 
|  | config NUMA | 
|  | bool "NUMA Support" | 
|  | depends on SYS_SUPPORTS_NUMA | 
|  | help | 
|  | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | 
|  | Access).  This option improves performance on systems with more | 
|  | than two nodes; on two node systems it is generally better to | 
|  | leave it disabled; on single node systems disable this option | 
|  | disabled. | 
|  |  | 
|  | config SYS_SUPPORTS_NUMA | 
|  | bool | 
|  |  | 
|  | config RELOCATABLE | 
|  | bool "Relocatable kernel" | 
|  | depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) | 
|  | help | 
|  | This builds a kernel image that retains relocation information | 
|  | so it can be loaded someplace besides the default 1MB. | 
|  | The relocations make the kernel binary about 15% larger, | 
|  | but are discarded at runtime | 
|  |  | 
|  | config RELOCATION_TABLE_SIZE | 
|  | hex "Relocation table size" | 
|  | depends on RELOCATABLE | 
|  | range 0x0 0x01000000 | 
|  | default "0x00100000" | 
|  | ---help--- | 
|  | A table of relocation data will be appended to the kernel binary | 
|  | and parsed at boot to fix up the relocated kernel. | 
|  |  | 
|  | This option allows the amount of space reserved for the table to be | 
|  | adjusted, although the default of 1Mb should be ok in most cases. | 
|  |  | 
|  | The build will fail and a valid size suggested if this is too small. | 
|  |  | 
|  | If unsure, leave at the default value. | 
|  |  | 
|  | config RANDOMIZE_BASE | 
|  | bool "Randomize the address of the kernel image" | 
|  | depends on RELOCATABLE | 
|  | ---help--- | 
|  | Randomizes the physical and virtual address at which the | 
|  | kernel image is loaded, as a security feature that | 
|  | deters exploit attempts relying on knowledge of the location | 
|  | of kernel internals. | 
|  |  | 
|  | Entropy is generated using any coprocessor 0 registers available. | 
|  |  | 
|  | The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config RANDOMIZE_BASE_MAX_OFFSET | 
|  | hex "Maximum kASLR offset" if EXPERT | 
|  | depends on RANDOMIZE_BASE | 
|  | range 0x0 0x40000000 if EVA || 64BIT | 
|  | range 0x0 0x08000000 | 
|  | default "0x01000000" | 
|  | ---help--- | 
|  | When kASLR is active, this provides the maximum offset that will | 
|  | be applied to the kernel image. It should be set according to the | 
|  | amount of physical RAM available in the target system minus | 
|  | PHYSICAL_START and must be a power of 2. | 
|  |  | 
|  | This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with | 
|  | EVA or 64-bit. The default is 16Mb. | 
|  |  | 
|  | config NODES_SHIFT | 
|  | int | 
|  | default "6" | 
|  | depends on NEED_MULTIPLE_NODES | 
|  |  | 
|  | config HW_PERF_EVENTS | 
|  | bool "Enable hardware performance counter support for perf events" | 
|  | depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) | 
|  | default y | 
|  | help | 
|  | Enable hardware performance counter support for perf events. If | 
|  | disabled, perf events will use software events only. | 
|  |  | 
|  | config SMP | 
|  | bool "Multi-Processing support" | 
|  | depends on SYS_SUPPORTS_SMP | 
|  | help | 
|  | This enables support for systems with more than one CPU. If you have | 
|  | a system with only one CPU, say N. If you have a system with more | 
|  | than one CPU, say Y. | 
|  |  | 
|  | If you say N here, the kernel will run on uni- and multiprocessor | 
|  | machines, but will use only one CPU of a multiprocessor machine. If | 
|  | you say Y here, the kernel will run on many, but not all, | 
|  | uniprocessor machines. On a uniprocessor machine, the kernel | 
|  | will run faster if you say N here. | 
|  |  | 
|  | People using multiprocessor machines who say Y here should also say | 
|  | Y to "Enhanced Real Time Clock Support", below. | 
|  |  | 
|  | See also the SMP-HOWTO available at | 
|  | <http://www.tldp.org/docs.html#howto>. | 
|  |  | 
|  | If you don't know what to do here, say N. | 
|  |  | 
|  | config HOTPLUG_CPU | 
|  | bool "Support for hot-pluggable CPUs" | 
|  | depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU | 
|  | help | 
|  | Say Y here to allow turning CPUs off and on. CPUs can be | 
|  | controlled through /sys/devices/system/cpu. | 
|  | (Note: power management support will enable this option | 
|  | automatically on SMP systems. ) | 
|  | Say N if you want to disable CPU hotplug. | 
|  |  | 
|  | config SMP_UP | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_MIPS_CMP | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_MIPS_CPS | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_SMP | 
|  | bool | 
|  |  | 
|  | config NR_CPUS_DEFAULT_4 | 
|  | bool | 
|  |  | 
|  | config NR_CPUS_DEFAULT_8 | 
|  | bool | 
|  |  | 
|  | config NR_CPUS_DEFAULT_16 | 
|  | bool | 
|  |  | 
|  | config NR_CPUS_DEFAULT_32 | 
|  | bool | 
|  |  | 
|  | config NR_CPUS_DEFAULT_64 | 
|  | bool | 
|  |  | 
|  | config NR_CPUS | 
|  | int "Maximum number of CPUs (2-256)" | 
|  | range 2 256 | 
|  | depends on SMP | 
|  | default "4" if NR_CPUS_DEFAULT_4 | 
|  | default "8" if NR_CPUS_DEFAULT_8 | 
|  | default "16" if NR_CPUS_DEFAULT_16 | 
|  | default "32" if NR_CPUS_DEFAULT_32 | 
|  | default "64" if NR_CPUS_DEFAULT_64 | 
|  | help | 
|  | This allows you to specify the maximum number of CPUs which this | 
|  | kernel will support.  The maximum supported value is 32 for 32-bit | 
|  | kernel and 64 for 64-bit kernels; the minimum value which makes | 
|  | sense is 1 for Qemu (useful only for kernel debugging purposes) | 
|  | and 2 for all others. | 
|  |  | 
|  | This is purely to save memory - each supported CPU adds | 
|  | approximately eight kilobytes to the kernel image.  For best | 
|  | performance should round up your number of processors to the next | 
|  | power of two. | 
|  |  | 
|  | config MIPS_PERF_SHARED_TC_COUNTERS | 
|  | bool | 
|  |  | 
|  | config MIPS_NR_CPU_NR_MAP_1024 | 
|  | bool | 
|  |  | 
|  | config MIPS_NR_CPU_NR_MAP | 
|  | int | 
|  | depends on SMP | 
|  | default 1024 if MIPS_NR_CPU_NR_MAP_1024 | 
|  | default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 | 
|  |  | 
|  | # | 
|  | # Timer Interrupt Frequency Configuration | 
|  | # | 
|  |  | 
|  | choice | 
|  | prompt "Timer frequency" | 
|  | default HZ_250 | 
|  | help | 
|  | Allows the configuration of the timer frequency. | 
|  |  | 
|  | config HZ_24 | 
|  | bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_48 | 
|  | bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_100 | 
|  | bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_128 | 
|  | bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_250 | 
|  | bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_256 | 
|  | bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_1000 | 
|  | bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | config HZ_1024 | 
|  | bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ | 
|  |  | 
|  | endchoice | 
|  |  | 
|  | config SYS_SUPPORTS_24HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_48HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_100HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_128HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_250HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_256HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_1000HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_1024HZ | 
|  | bool | 
|  |  | 
|  | config SYS_SUPPORTS_ARBIT_HZ | 
|  | bool | 
|  | default y if !SYS_SUPPORTS_24HZ && \ | 
|  | !SYS_SUPPORTS_48HZ && \ | 
|  | !SYS_SUPPORTS_100HZ && \ | 
|  | !SYS_SUPPORTS_128HZ && \ | 
|  | !SYS_SUPPORTS_250HZ && \ | 
|  | !SYS_SUPPORTS_256HZ && \ | 
|  | !SYS_SUPPORTS_1000HZ && \ | 
|  | !SYS_SUPPORTS_1024HZ | 
|  |  | 
|  | config HZ | 
|  | int | 
|  | default 24 if HZ_24 | 
|  | default 48 if HZ_48 | 
|  | default 100 if HZ_100 | 
|  | default 128 if HZ_128 | 
|  | default 250 if HZ_250 | 
|  | default 256 if HZ_256 | 
|  | default 1000 if HZ_1000 | 
|  | default 1024 if HZ_1024 | 
|  |  | 
|  | config SCHED_HRTICK | 
|  | def_bool HIGH_RES_TIMERS | 
|  |  | 
|  | config KEXEC | 
|  | bool "Kexec system call" | 
|  | select KEXEC_CORE | 
|  | help | 
|  | kexec is a system call that implements the ability to shutdown your | 
|  | current kernel, and to start another kernel.  It is like a reboot | 
|  | but it is independent of the system firmware.   And like a reboot | 
|  | you can start any kernel with it, not just Linux. | 
|  |  | 
|  | The name comes from the similarity to the exec system call. | 
|  |  | 
|  | It is an ongoing process to be certain the hardware in a machine | 
|  | is properly shutdown, so do not be surprised if this code does not | 
|  | initially work for you.  As of this writing the exact hardware | 
|  | interface is strongly in flux, so no good recommendation can be | 
|  | made. | 
|  |  | 
|  | config CRASH_DUMP | 
|  | bool "Kernel crash dumps" | 
|  | help | 
|  | Generate crash dump after being started by kexec. | 
|  | This should be normally only set in special crash dump kernels | 
|  | which are loaded in the main kernel with kexec-tools into | 
|  | a specially reserved region and then later executed after | 
|  | a crash by kdump/kexec. The crash dump kernel must be compiled | 
|  | to a memory address not used by the main kernel or firmware using | 
|  | PHYSICAL_START. | 
|  |  | 
|  | config PHYSICAL_START | 
|  | hex "Physical address where the kernel is loaded" | 
|  | default "0xffffffff84000000" | 
|  | depends on CRASH_DUMP | 
|  | help | 
|  | This gives the CKSEG0 or KSEG0 address where the kernel is loaded. | 
|  | If you plan to use kernel for capturing the crash dump change | 
|  | this value to start of the reserved region (the "X" value as | 
|  | specified in the "crashkernel=YM@XM" command line boot parameter | 
|  | passed to the panic-ed kernel). | 
|  |  | 
|  | config SECCOMP | 
|  | bool "Enable seccomp to safely compute untrusted bytecode" | 
|  | depends on PROC_FS | 
|  | default y | 
|  | help | 
|  | This kernel feature is useful for number crunching applications | 
|  | that may need to compute untrusted bytecode during their | 
|  | execution. By using pipes or other transports made available to | 
|  | the process as file descriptors supporting the read/write | 
|  | syscalls, it's possible to isolate those applications in | 
|  | their own address space using seccomp. Once seccomp is | 
|  | enabled via /proc/<pid>/seccomp, it cannot be disabled | 
|  | and the task is only allowed to execute a few safe syscalls | 
|  | defined by each seccomp mode. | 
|  |  | 
|  | If unsure, say Y. Only embedded should say N here. | 
|  |  | 
|  | config MIPS_O32_FP64_SUPPORT | 
|  | bool "Support for O32 binaries using 64-bit FP" | 
|  | depends on 32BIT || MIPS32_O32 | 
|  | help | 
|  | When this is enabled, the kernel will support use of 64-bit floating | 
|  | point registers with binaries using the O32 ABI along with the | 
|  | EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On | 
|  | 32-bit MIPS systems this support is at the cost of increasing the | 
|  | size and complexity of the compiled FPU emulator. Thus if you are | 
|  | running a MIPS32 system and know that none of your userland binaries | 
|  | will require 64-bit floating point, you may wish to reduce the size | 
|  | of your kernel & potentially improve FP emulation performance by | 
|  | saying N here. | 
|  |  | 
|  | Although binutils currently supports use of this flag the details | 
|  | concerning its effect upon the O32 ABI in userland are still being | 
|  | worked on. In order to avoid userland becoming dependant upon current | 
|  | behaviour before the details have been finalised, this option should | 
|  | be considered experimental and only enabled by those working upon | 
|  | said details. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config USE_OF | 
|  | bool | 
|  | select OF | 
|  | select OF_EARLY_FLATTREE | 
|  | select IRQ_DOMAIN | 
|  |  | 
|  | config BUILTIN_DTB | 
|  | bool | 
|  |  | 
|  | choice | 
|  | prompt "Kernel appended dtb support" if USE_OF | 
|  | default MIPS_NO_APPENDED_DTB | 
|  |  | 
|  | config MIPS_NO_APPENDED_DTB | 
|  | bool "None" | 
|  | help | 
|  | Do not enable appended dtb support. | 
|  |  | 
|  | config MIPS_ELF_APPENDED_DTB | 
|  | bool "vmlinux" | 
|  | help | 
|  | With this option, the boot code will look for a device tree binary | 
|  | DTB) included in the vmlinux ELF section .appended_dtb. By default | 
|  | it is empty and the DTB can be appended using binutils command | 
|  | objcopy: | 
|  |  | 
|  | objcopy --update-section .appended_dtb=<filename>.dtb vmlinux | 
|  |  | 
|  | This is meant as a backward compatiblity convenience for those | 
|  | systems with a bootloader that can't be upgraded to accommodate | 
|  | the documented boot protocol using a device tree. | 
|  |  | 
|  | config MIPS_RAW_APPENDED_DTB | 
|  | bool "vmlinux.bin or vmlinuz.bin" | 
|  | help | 
|  | With this option, the boot code will look for a device tree binary | 
|  | DTB) appended to raw vmlinux.bin or vmlinuz.bin. | 
|  | (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). | 
|  |  | 
|  | This is meant as a backward compatibility convenience for those | 
|  | systems with a bootloader that can't be upgraded to accommodate | 
|  | the documented boot protocol using a device tree. | 
|  |  | 
|  | Beware that there is very little in terms of protection against | 
|  | this option being confused by leftover garbage in memory that might | 
|  | look like a DTB header after a reboot if no actual DTB is appended | 
|  | to vmlinux.bin.  Do not leave this option active in a production kernel | 
|  | if you don't intend to always append a DTB. | 
|  | endchoice | 
|  |  | 
|  | choice | 
|  | prompt "Kernel command line type" if !CMDLINE_OVERRIDE | 
|  | default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ | 
|  | !MIPS_MALTA && \ | 
|  | !CAVIUM_OCTEON_SOC | 
|  | default MIPS_CMDLINE_FROM_BOOTLOADER | 
|  |  | 
|  | config MIPS_CMDLINE_FROM_DTB | 
|  | depends on USE_OF | 
|  | bool "Dtb kernel arguments if available" | 
|  |  | 
|  | config MIPS_CMDLINE_DTB_EXTEND | 
|  | depends on USE_OF | 
|  | bool "Extend dtb kernel arguments with bootloader arguments" | 
|  |  | 
|  | config MIPS_CMDLINE_FROM_BOOTLOADER | 
|  | bool "Bootloader kernel arguments if available" | 
|  |  | 
|  | config MIPS_CMDLINE_BUILTIN_EXTEND | 
|  | depends on CMDLINE_BOOL | 
|  | bool "Extend builtin kernel arguments with bootloader arguments" | 
|  | endchoice | 
|  |  | 
|  | endmenu | 
|  |  | 
|  | config LOCKDEP_SUPPORT | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config STACKTRACE_SUPPORT | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config HAVE_LATENCYTOP_SUPPORT | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config PGTABLE_LEVELS | 
|  | int | 
|  | default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 | 
|  | default 3 if 64BIT && !PAGE_SIZE_64KB | 
|  | default 2 | 
|  |  | 
|  | config MIPS_AUTO_PFN_OFFSET | 
|  | bool | 
|  |  | 
|  | menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" | 
|  |  | 
|  | config HW_HAS_EISA | 
|  | bool | 
|  | config HW_HAS_PCI | 
|  | bool | 
|  |  | 
|  | config PCI | 
|  | bool "Support for PCI controller" | 
|  | depends on HW_HAS_PCI | 
|  | select PCI_DOMAINS | 
|  | help | 
|  | Find out whether you have a PCI motherboard. PCI is the name of a | 
|  | bus system, i.e. the way the CPU talks to the other stuff inside | 
|  | your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, | 
|  | say Y, otherwise N. | 
|  |  | 
|  | config HT_PCI | 
|  | bool "Support for HT-linked PCI" | 
|  | default y | 
|  | depends on CPU_LOONGSON3 | 
|  | select PCI | 
|  | select PCI_DOMAINS | 
|  | help | 
|  | Loongson family machines use Hyper-Transport bus for inter-core | 
|  | connection and device connection. The PCI bus is a subordinate | 
|  | linked at HT. Choose Y for Loongson-3 based machines. | 
|  |  | 
|  | config PCI_DOMAINS | 
|  | bool | 
|  |  | 
|  | config PCI_DOMAINS_GENERIC | 
|  | bool | 
|  |  | 
|  | config PCI_DRIVERS_GENERIC | 
|  | select PCI_DOMAINS_GENERIC if PCI_DOMAINS | 
|  | bool | 
|  |  | 
|  | config PCI_DRIVERS_LEGACY | 
|  | def_bool !PCI_DRIVERS_GENERIC | 
|  | select NO_GENERIC_PCI_IOPORT_MAP | 
|  |  | 
|  | source "drivers/pci/Kconfig" | 
|  |  | 
|  | # | 
|  | # ISA support is now enabled via select.  Too many systems still have the one | 
|  | # or other ISA chip on the board that users don't know about so don't expect | 
|  | # users to choose the right thing ... | 
|  | # | 
|  | config ISA | 
|  | bool | 
|  |  | 
|  | config EISA | 
|  | bool "EISA support" | 
|  | depends on HW_HAS_EISA | 
|  | select ISA | 
|  | select GENERIC_ISA_DMA | 
|  | ---help--- | 
|  | The Extended Industry Standard Architecture (EISA) bus was | 
|  | developed as an open alternative to the IBM MicroChannel bus. | 
|  |  | 
|  | The EISA bus provided some of the features of the IBM MicroChannel | 
|  | bus while maintaining backward compatibility with cards made for | 
|  | the older ISA bus.  The EISA bus saw limited use between 1988 and | 
|  | 1995 when it was made obsolete by the PCI bus. | 
|  |  | 
|  | Say Y here if you are building a kernel for an EISA-based machine. | 
|  |  | 
|  | Otherwise, say N. | 
|  |  | 
|  | source "drivers/eisa/Kconfig" | 
|  |  | 
|  | config TC | 
|  | bool "TURBOchannel support" | 
|  | depends on MACH_DECSTATION | 
|  | help | 
|  | TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS | 
|  | processors.  TURBOchannel programming specifications are available | 
|  | at: | 
|  | <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> | 
|  | and: | 
|  | <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> | 
|  | Linux driver support status is documented at: | 
|  | <http://www.linux-mips.org/wiki/DECstation> | 
|  |  | 
|  | config MMU | 
|  | bool | 
|  | default y | 
|  |  | 
|  | config ARCH_MMAP_RND_BITS_MIN | 
|  | default 12 if 64BIT | 
|  | default 8 | 
|  |  | 
|  | config ARCH_MMAP_RND_BITS_MAX | 
|  | default 18 if 64BIT | 
|  | default 15 | 
|  |  | 
|  | config ARCH_MMAP_RND_COMPAT_BITS_MIN | 
|  | default 8 | 
|  |  | 
|  | config ARCH_MMAP_RND_COMPAT_BITS_MAX | 
|  | default 15 | 
|  |  | 
|  | config I8253 | 
|  | bool | 
|  | select CLKSRC_I8253 | 
|  | select CLKEVT_I8253 | 
|  | select MIPS_EXTERNAL_TIMER | 
|  |  | 
|  | config ZONE_DMA | 
|  | bool | 
|  |  | 
|  | config ZONE_DMA32 | 
|  | bool | 
|  |  | 
|  | source "drivers/pcmcia/Kconfig" | 
|  |  | 
|  | config HAS_RAPIDIO | 
|  | bool | 
|  | default n | 
|  |  | 
|  | config RAPIDIO | 
|  | tristate "RapidIO support" | 
|  | depends on HAS_RAPIDIO || PCI | 
|  | help | 
|  | If you say Y here, the kernel will include drivers and | 
|  | infrastructure code to support RapidIO interconnect devices. | 
|  |  | 
|  | source "drivers/rapidio/Kconfig" | 
|  |  | 
|  | endmenu | 
|  |  | 
|  | config TRAD_SIGNALS | 
|  | bool | 
|  |  | 
|  | config MIPS32_COMPAT | 
|  | bool | 
|  |  | 
|  | config COMPAT | 
|  | bool | 
|  |  | 
|  | config SYSVIPC_COMPAT | 
|  | bool | 
|  |  | 
|  | config MIPS32_O32 | 
|  | bool "Kernel support for o32 binaries" | 
|  | depends on 64BIT | 
|  | select ARCH_WANT_OLD_COMPAT_IPC | 
|  | select COMPAT | 
|  | select MIPS32_COMPAT | 
|  | select SYSVIPC_COMPAT if SYSVIPC | 
|  | help | 
|  | Select this option if you want to run o32 binaries.  These are pure | 
|  | 32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of | 
|  | existing binaries are in this format. | 
|  |  | 
|  | If unsure, say Y. | 
|  |  | 
|  | config MIPS32_N32 | 
|  | bool "Kernel support for n32 binaries" | 
|  | depends on 64BIT | 
|  | select ARCH_WANT_COMPAT_IPC_PARSE_VERSION | 
|  | select COMPAT | 
|  | select MIPS32_COMPAT | 
|  | select SYSVIPC_COMPAT if SYSVIPC | 
|  | help | 
|  | Select this option if you want to run n32 binaries.  These are | 
|  | 64-bit binaries using 32-bit quantities for addressing and certain | 
|  | data that would normally be 64-bit.  They are used in special | 
|  | cases. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config BINFMT_ELF32 | 
|  | bool | 
|  | default y if MIPS32_O32 || MIPS32_N32 | 
|  | select ELFCORE | 
|  |  | 
|  | menu "Power management options" | 
|  |  | 
|  | config ARCH_HIBERNATION_POSSIBLE | 
|  | def_bool y | 
|  | depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP | 
|  |  | 
|  | config ARCH_SUSPEND_POSSIBLE | 
|  | def_bool y | 
|  | depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP | 
|  |  | 
|  | source "kernel/power/Kconfig" | 
|  |  | 
|  | endmenu | 
|  |  | 
|  | config MIPS_EXTERNAL_TIMER | 
|  | bool | 
|  |  | 
|  | menu "CPU Power Management" | 
|  |  | 
|  | if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER | 
|  | source "drivers/cpufreq/Kconfig" | 
|  | endif | 
|  |  | 
|  | source "drivers/cpuidle/Kconfig" | 
|  |  | 
|  | endmenu | 
|  |  | 
|  | source "drivers/firmware/Kconfig" | 
|  |  | 
|  | source "arch/mips/kvm/Kconfig" |