linux/arch/mips/Kconfig
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   1# SPDX-License-Identifier: GPL-2.0
   2config MIPS
   3        bool
   4        default y
   5        select ARCH_32BIT_OFF_T if !64BIT
   6        select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
   7        select ARCH_CLOCKSOURCE_DATA
   8        select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
   9        select ARCH_HAS_UBSAN_SANITIZE_ALL
  10        select ARCH_SUPPORTS_UPROBES
  11        select ARCH_USE_BUILTIN_BSWAP
  12        select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
  13        select ARCH_USE_QUEUED_RWLOCKS
  14        select ARCH_USE_QUEUED_SPINLOCKS
  15        select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
  16        select ARCH_WANT_IPC_PARSE_VERSION
  17        select BUILDTIME_EXTABLE_SORT
  18        select CLONE_BACKWARDS
  19        select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
  20        select CPU_PM if CPU_IDLE
  21        select GENERIC_ATOMIC64 if !64BIT
  22        select GENERIC_CLOCKEVENTS
  23        select GENERIC_CMOS_UPDATE
  24        select GENERIC_CPU_AUTOPROBE
  25        select GENERIC_GETTIMEOFDAY
  26        select GENERIC_IOMAP
  27        select GENERIC_IRQ_PROBE
  28        select GENERIC_IRQ_SHOW
  29        select GENERIC_ISA_DMA if EISA
  30        select GENERIC_LIB_ASHLDI3
  31        select GENERIC_LIB_ASHRDI3
  32        select GENERIC_LIB_CMPDI2
  33        select GENERIC_LIB_LSHRDI3
  34        select GENERIC_LIB_UCMPDI2
  35        select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
  36        select GENERIC_SMP_IDLE_THREAD
  37        select GENERIC_TIME_VSYSCALL
  38        select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
  39        select HANDLE_DOMAIN_IRQ
  40        select HAVE_ARCH_COMPILER_H
  41        select HAVE_ARCH_JUMP_LABEL
  42        select HAVE_ARCH_KGDB
  43        select HAVE_ARCH_MMAP_RND_BITS if MMU
  44        select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
  45        select HAVE_ARCH_SECCOMP_FILTER
  46        select HAVE_ARCH_TRACEHOOK
  47        select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
  48        select HAVE_ASM_MODVERSIONS
  49        select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
  50        select HAVE_CONTEXT_TRACKING
  51        select HAVE_COPY_THREAD_TLS
  52        select HAVE_C_RECORDMCOUNT
  53        select HAVE_DEBUG_KMEMLEAK
  54        select HAVE_DEBUG_STACKOVERFLOW
  55        select HAVE_DMA_CONTIGUOUS
  56        select HAVE_DYNAMIC_FTRACE
  57        select HAVE_EXIT_THREAD
  58        select HAVE_FAST_GUP
  59        select HAVE_FTRACE_MCOUNT_RECORD
  60        select HAVE_FUNCTION_GRAPH_TRACER
  61        select HAVE_FUNCTION_TRACER
  62        select HAVE_IDE
  63        select HAVE_IOREMAP_PROT
  64        select HAVE_IRQ_EXIT_ON_IRQ_STACK
  65        select HAVE_IRQ_TIME_ACCOUNTING
  66        select HAVE_KPROBES
  67        select HAVE_KRETPROBES
  68        select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
  69        select HAVE_MEMBLOCK_NODE_MAP
  70        select HAVE_MOD_ARCH_SPECIFIC
  71        select HAVE_NMI
  72        select HAVE_OPROFILE
  73        select HAVE_PERF_EVENTS
  74        select HAVE_REGS_AND_STACK_ACCESS_API
  75        select HAVE_RSEQ
  76        select HAVE_STACKPROTECTOR
  77        select HAVE_SYSCALL_TRACEPOINTS
  78        select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
  79        select HAVE_GENERIC_VDSO
  80        select IRQ_FORCED_THREADING
  81        select ISA if EISA
  82        select MODULES_USE_ELF_RELA if MODULES && 64BIT
  83        select MODULES_USE_ELF_REL if MODULES
  84        select PERF_USE_VMALLOC
  85        select RTC_LIB
  86        select SYSCTL_EXCEPTION_TRACE
  87        select VIRT_TO_BUS
  88        select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
  89
  90menu "Machine selection"
  91
  92choice
  93        prompt "System type"
  94        default MIPS_GENERIC
  95
  96config MIPS_GENERIC
  97        bool "Generic board-agnostic MIPS kernel"
  98        select BOOT_RAW
  99        select BUILTIN_DTB
 100        select CEVT_R4K
 101        select CLKSRC_MIPS_GIC
 102        select COMMON_CLK
 103        select CPU_MIPSR2_IRQ_VI
 104        select CPU_MIPSR2_IRQ_EI
 105        select CSRC_R4K
 106        select DMA_PERDEV_COHERENT
 107        select HAVE_PCI
 108        select IRQ_MIPS_CPU
 109        select LIBFDT
 110        select MIPS_AUTO_PFN_OFFSET
 111        select MIPS_CPU_SCACHE
 112        select MIPS_GIC
 113        select MIPS_L1_CACHE_SHIFT_7
 114        select NO_EXCEPT_FILL
 115        select PCI_DRIVERS_GENERIC
 116        select PINCTRL
 117        select SMP_UP if SMP
 118        select SWAP_IO_SPACE
 119        select SYS_HAS_CPU_MIPS32_R1
 120        select SYS_HAS_CPU_MIPS32_R2
 121        select SYS_HAS_CPU_MIPS32_R6
 122        select SYS_HAS_CPU_MIPS64_R1
 123        select SYS_HAS_CPU_MIPS64_R2
 124        select SYS_HAS_CPU_MIPS64_R6
 125        select SYS_SUPPORTS_32BIT_KERNEL
 126        select SYS_SUPPORTS_64BIT_KERNEL
 127        select SYS_SUPPORTS_BIG_ENDIAN
 128        select SYS_SUPPORTS_HIGHMEM
 129        select SYS_SUPPORTS_LITTLE_ENDIAN
 130        select SYS_SUPPORTS_MICROMIPS
 131        select SYS_SUPPORTS_MIPS_CPS
 132        select SYS_SUPPORTS_MIPS16
 133        select SYS_SUPPORTS_MULTITHREADING
 134        select SYS_SUPPORTS_RELOCATABLE
 135        select SYS_SUPPORTS_SMARTMIPS
 136        select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
 137        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 138        select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
 139        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 140        select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
 141        select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 142        select USE_OF
 143        select UHI_BOOT
 144        help
 145          Select this to build a kernel which aims to support multiple boards,
 146          generally using a flattened device tree passed from the bootloader
 147          using the boot protocol defined in the UHI (Unified Hosting
 148          Interface) specification.
 149
 150config MIPS_ALCHEMY
 151        bool "Alchemy processor based machines"
 152        select PHYS_ADDR_T_64BIT
 153        select CEVT_R4K
 154        select CSRC_R4K
 155        select IRQ_MIPS_CPU
 156        select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
 157        select SYS_HAS_CPU_MIPS32_R1
 158        select SYS_SUPPORTS_32BIT_KERNEL
 159        select SYS_SUPPORTS_APM_EMULATION
 160        select GPIOLIB
 161        select SYS_SUPPORTS_ZBOOT
 162        select COMMON_CLK
 163
 164config AR7
 165        bool "Texas Instruments AR7"
 166        select BOOT_ELF32
 167        select DMA_NONCOHERENT
 168        select CEVT_R4K
 169        select CSRC_R4K
 170        select IRQ_MIPS_CPU
 171        select NO_EXCEPT_FILL
 172        select SWAP_IO_SPACE
 173        select SYS_HAS_CPU_MIPS32_R1
 174        select SYS_HAS_EARLY_PRINTK
 175        select SYS_SUPPORTS_32BIT_KERNEL
 176        select SYS_SUPPORTS_LITTLE_ENDIAN
 177        select SYS_SUPPORTS_MIPS16
 178        select SYS_SUPPORTS_ZBOOT_UART16550
 179        select GPIOLIB
 180        select VLYNQ
 181        select HAVE_CLK
 182        help
 183          Support for the Texas Instruments AR7 System-on-a-Chip
 184          family: TNETD7100, 7200 and 7300.
 185
 186config ATH25
 187        bool "Atheros AR231x/AR531x SoC support"
 188        select CEVT_R4K
 189        select CSRC_R4K
 190        select DMA_NONCOHERENT
 191        select IRQ_MIPS_CPU
 192        select IRQ_DOMAIN
 193        select SYS_HAS_CPU_MIPS32_R1
 194        select SYS_SUPPORTS_BIG_ENDIAN
 195        select SYS_SUPPORTS_32BIT_KERNEL
 196        select SYS_HAS_EARLY_PRINTK
 197        help
 198          Support for Atheros AR231x and Atheros AR531x based boards
 199
 200config ATH79
 201        bool "Atheros AR71XX/AR724X/AR913X based boards"
 202        select ARCH_HAS_RESET_CONTROLLER
 203        select BOOT_RAW
 204        select CEVT_R4K
 205        select CSRC_R4K
 206        select DMA_NONCOHERENT
 207        select GPIOLIB
 208        select PINCTRL
 209        select HAVE_CLK
 210        select COMMON_CLK
 211        select CLKDEV_LOOKUP
 212        select IRQ_MIPS_CPU
 213        select SYS_HAS_CPU_MIPS32_R2
 214        select SYS_HAS_EARLY_PRINTK
 215        select SYS_SUPPORTS_32BIT_KERNEL
 216        select SYS_SUPPORTS_BIG_ENDIAN
 217        select SYS_SUPPORTS_MIPS16
 218        select SYS_SUPPORTS_ZBOOT_UART_PROM
 219        select USE_OF
 220        select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
 221        help
 222          Support for the Atheros AR71XX/AR724X/AR913X SoCs.
 223
 224config BMIPS_GENERIC
 225        bool "Broadcom Generic BMIPS kernel"
 226        select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
 227        select ARCH_HAS_PHYS_TO_DMA
 228        select BOOT_RAW
 229        select NO_EXCEPT_FILL
 230        select USE_OF
 231        select CEVT_R4K
 232        select CSRC_R4K
 233        select SYNC_R4K
 234        select COMMON_CLK
 235        select BCM6345_L1_IRQ
 236        select BCM7038_L1_IRQ
 237        select BCM7120_L2_IRQ
 238        select BRCMSTB_L2_IRQ
 239        select IRQ_MIPS_CPU
 240        select DMA_NONCOHERENT
 241        select SYS_SUPPORTS_32BIT_KERNEL
 242        select SYS_SUPPORTS_LITTLE_ENDIAN
 243        select SYS_SUPPORTS_BIG_ENDIAN
 244        select SYS_SUPPORTS_HIGHMEM
 245        select SYS_HAS_CPU_BMIPS32_3300
 246        select SYS_HAS_CPU_BMIPS4350
 247        select SYS_HAS_CPU_BMIPS4380
 248        select SYS_HAS_CPU_BMIPS5000
 249        select SWAP_IO_SPACE
 250        select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
 251        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 252        select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
 253        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 254        select HARDIRQS_SW_RESEND
 255        help
 256          Build a generic DT-based kernel image that boots on select
 257          BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
 258          box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
 259          must be set appropriately for your board.
 260
 261config BCM47XX
 262        bool "Broadcom BCM47XX based boards"
 263        select BOOT_RAW
 264        select CEVT_R4K
 265        select CSRC_R4K
 266        select DMA_NONCOHERENT
 267        select HAVE_PCI
 268        select IRQ_MIPS_CPU
 269        select SYS_HAS_CPU_MIPS32_R1
 270        select NO_EXCEPT_FILL
 271        select SYS_SUPPORTS_32BIT_KERNEL
 272        select SYS_SUPPORTS_LITTLE_ENDIAN
 273        select SYS_SUPPORTS_MIPS16
 274        select SYS_SUPPORTS_ZBOOT
 275        select SYS_HAS_EARLY_PRINTK
 276        select USE_GENERIC_EARLY_PRINTK_8250
 277        select GPIOLIB
 278        select LEDS_GPIO_REGISTER
 279        select BCM47XX_NVRAM
 280        select BCM47XX_SPROM
 281        select BCM47XX_SSB if !BCM47XX_BCMA
 282        help
 283          Support for BCM47XX based boards
 284
 285config BCM63XX
 286        bool "Broadcom BCM63XX based boards"
 287        select BOOT_RAW
 288        select CEVT_R4K
 289        select CSRC_R4K
 290        select SYNC_R4K
 291        select DMA_NONCOHERENT
 292        select IRQ_MIPS_CPU
 293        select SYS_SUPPORTS_32BIT_KERNEL
 294        select SYS_SUPPORTS_BIG_ENDIAN
 295        select SYS_HAS_EARLY_PRINTK
 296        select SWAP_IO_SPACE
 297        select GPIOLIB
 298        select HAVE_CLK
 299        select MIPS_L1_CACHE_SHIFT_4
 300        select CLKDEV_LOOKUP
 301        help
 302          Support for BCM63XX based boards
 303
 304config MIPS_COBALT
 305        bool "Cobalt Server"
 306        select CEVT_R4K
 307        select CSRC_R4K
 308        select CEVT_GT641XX
 309        select DMA_NONCOHERENT
 310        select FORCE_PCI
 311        select I8253
 312        select I8259
 313        select IRQ_MIPS_CPU
 314        select IRQ_GT641XX
 315        select PCI_GT64XXX_PCI0
 316        select SYS_HAS_CPU_NEVADA
 317        select SYS_HAS_EARLY_PRINTK
 318        select SYS_SUPPORTS_32BIT_KERNEL
 319        select SYS_SUPPORTS_64BIT_KERNEL
 320        select SYS_SUPPORTS_LITTLE_ENDIAN
 321        select USE_GENERIC_EARLY_PRINTK_8250
 322
 323config MACH_DECSTATION
 324        bool "DECstations"
 325        select BOOT_ELF32
 326        select CEVT_DS1287
 327        select CEVT_R4K if CPU_R4X00
 328        select CSRC_IOASIC
 329        select CSRC_R4K if CPU_R4X00
 330        select CPU_DADDI_WORKAROUNDS if 64BIT
 331        select CPU_R4000_WORKAROUNDS if 64BIT
 332        select CPU_R4400_WORKAROUNDS if 64BIT
 333        select DMA_NONCOHERENT
 334        select NO_IOPORT_MAP
 335        select IRQ_MIPS_CPU
 336        select SYS_HAS_CPU_R3000
 337        select SYS_HAS_CPU_R4X00
 338        select SYS_SUPPORTS_32BIT_KERNEL
 339        select SYS_SUPPORTS_64BIT_KERNEL
 340        select SYS_SUPPORTS_LITTLE_ENDIAN
 341        select SYS_SUPPORTS_128HZ
 342        select SYS_SUPPORTS_256HZ
 343        select SYS_SUPPORTS_1024HZ
 344        select MIPS_L1_CACHE_SHIFT_4
 345        help
 346          This enables support for DEC's MIPS based workstations.  For details
 347          see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
 348          DECstation porting pages on <http://decstation.unix-ag.org/>.
 349
 350          If you have one of the following DECstation Models you definitely
 351          want to choose R4xx0 for the CPU Type:
 352
 353                DECstation 5000/50
 354                DECstation 5000/150
 355                DECstation 5000/260
 356                DECsystem 5900/260
 357
 358          otherwise choose R3000.
 359
 360config MACH_JAZZ
 361        bool "Jazz family of machines"
 362        select ARCH_MIGHT_HAVE_PC_PARPORT
 363        select ARCH_MIGHT_HAVE_PC_SERIO
 364        select FW_ARC
 365        select FW_ARC32
 366        select ARCH_MAY_HAVE_PC_FDC
 367        select CEVT_R4K
 368        select CSRC_R4K
 369        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 370        select GENERIC_ISA_DMA
 371        select HAVE_PCSPKR_PLATFORM
 372        select IRQ_MIPS_CPU
 373        select I8253
 374        select I8259
 375        select ISA
 376        select SYS_HAS_CPU_R4X00
 377        select SYS_SUPPORTS_32BIT_KERNEL
 378        select SYS_SUPPORTS_64BIT_KERNEL
 379        select SYS_SUPPORTS_100HZ
 380        help
 381          This a family of machines based on the MIPS R4030 chipset which was
 382          used by several vendors to build RISC/os and Windows NT workstations.
 383          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
 384          Olivetti M700-10 workstations.
 385
 386config MACH_INGENIC
 387        bool "Ingenic SoC based machines"
 388        select SYS_SUPPORTS_32BIT_KERNEL
 389        select SYS_SUPPORTS_LITTLE_ENDIAN
 390        select SYS_SUPPORTS_ZBOOT_UART16550
 391        select CPU_SUPPORTS_HUGEPAGES
 392        select DMA_NONCOHERENT
 393        select IRQ_MIPS_CPU
 394        select PINCTRL
 395        select GPIOLIB
 396        select COMMON_CLK
 397        select GENERIC_IRQ_CHIP
 398        select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
 399        select USE_OF
 400        select LIBFDT
 401
 402config LANTIQ
 403        bool "Lantiq based platforms"
 404        select DMA_NONCOHERENT
 405        select IRQ_MIPS_CPU
 406        select CEVT_R4K
 407        select CSRC_R4K
 408        select SYS_HAS_CPU_MIPS32_R1
 409        select SYS_HAS_CPU_MIPS32_R2
 410        select SYS_SUPPORTS_BIG_ENDIAN
 411        select SYS_SUPPORTS_32BIT_KERNEL
 412        select SYS_SUPPORTS_MIPS16
 413        select SYS_SUPPORTS_MULTITHREADING
 414        select SYS_SUPPORTS_VPE_LOADER
 415        select SYS_HAS_EARLY_PRINTK
 416        select GPIOLIB
 417        select SWAP_IO_SPACE
 418        select BOOT_RAW
 419        select CLKDEV_LOOKUP
 420        select USE_OF
 421        select PINCTRL
 422        select PINCTRL_LANTIQ
 423        select ARCH_HAS_RESET_CONTROLLER
 424        select RESET_CONTROLLER
 425
 426config LASAT
 427        bool "LASAT Networks platforms"
 428        select CEVT_R4K
 429        select CRC32
 430        select CSRC_R4K
 431        select DMA_NONCOHERENT
 432        select SYS_HAS_EARLY_PRINTK
 433        select HAVE_PCI
 434        select IRQ_MIPS_CPU
 435        select PCI_GT64XXX_PCI0
 436        select MIPS_NILE4
 437        select R5000_CPU_SCACHE
 438        select SYS_HAS_CPU_R5000
 439        select SYS_SUPPORTS_32BIT_KERNEL
 440        select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
 441        select SYS_SUPPORTS_LITTLE_ENDIAN
 442
 443config MACH_LOONGSON32
 444        bool "Loongson-1 family of machines"
 445        select SYS_SUPPORTS_ZBOOT
 446        help
 447          This enables support for the Loongson-1 family of machines.
 448
 449          Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
 450          the Institute of Computing Technology (ICT), Chinese Academy of
 451          Sciences (CAS).
 452
 453config MACH_LOONGSON64
 454        bool "Loongson-2/3 family of machines"
 455        select SYS_SUPPORTS_ZBOOT
 456        help
 457          This enables the support of Loongson-2/3 family of machines.
 458
 459          Loongson-2 is a family of single-core CPUs and Loongson-3 is a
 460          family of multi-core CPUs. They are both 64-bit general-purpose
 461          MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
 462          of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
 463          in the People's Republic of China. The chief architect is Professor
 464          Weiwu Hu.
 465
 466config MACH_PISTACHIO
 467        bool "IMG Pistachio SoC based boards"
 468        select BOOT_ELF32
 469        select BOOT_RAW
 470        select CEVT_R4K
 471        select CLKSRC_MIPS_GIC
 472        select COMMON_CLK
 473        select CSRC_R4K
 474        select DMA_NONCOHERENT
 475        select GPIOLIB
 476        select IRQ_MIPS_CPU
 477        select LIBFDT
 478        select MFD_SYSCON
 479        select MIPS_CPU_SCACHE
 480        select MIPS_GIC
 481        select PINCTRL
 482        select REGULATOR
 483        select SYS_HAS_CPU_MIPS32_R2
 484        select SYS_SUPPORTS_32BIT_KERNEL
 485        select SYS_SUPPORTS_LITTLE_ENDIAN
 486        select SYS_SUPPORTS_MIPS_CPS
 487        select SYS_SUPPORTS_MULTITHREADING
 488        select SYS_SUPPORTS_RELOCATABLE
 489        select SYS_SUPPORTS_ZBOOT
 490        select SYS_HAS_EARLY_PRINTK
 491        select USE_GENERIC_EARLY_PRINTK_8250
 492        select USE_OF
 493        help
 494          This enables support for the IMG Pistachio SoC platform.
 495
 496config MIPS_MALTA
 497        bool "MIPS Malta board"
 498        select ARCH_MAY_HAVE_PC_FDC
 499        select ARCH_MIGHT_HAVE_PC_PARPORT
 500        select ARCH_MIGHT_HAVE_PC_SERIO
 501        select BOOT_ELF32
 502        select BOOT_RAW
 503        select BUILTIN_DTB
 504        select CEVT_R4K
 505        select CLKSRC_MIPS_GIC
 506        select COMMON_CLK
 507        select CSRC_R4K
 508        select DMA_MAYBE_COHERENT
 509        select GENERIC_ISA_DMA
 510        select HAVE_PCSPKR_PLATFORM
 511        select HAVE_PCI
 512        select I8253
 513        select I8259
 514        select IRQ_MIPS_CPU
 515        select LIBFDT
 516        select MIPS_BONITO64
 517        select MIPS_CPU_SCACHE
 518        select MIPS_GIC
 519        select MIPS_L1_CACHE_SHIFT_6
 520        select MIPS_MSC
 521        select PCI_GT64XXX_PCI0
 522        select SMP_UP if SMP
 523        select SWAP_IO_SPACE
 524        select SYS_HAS_CPU_MIPS32_R1
 525        select SYS_HAS_CPU_MIPS32_R2
 526        select SYS_HAS_CPU_MIPS32_R3_5
 527        select SYS_HAS_CPU_MIPS32_R5
 528        select SYS_HAS_CPU_MIPS32_R6
 529        select SYS_HAS_CPU_MIPS64_R1
 530        select SYS_HAS_CPU_MIPS64_R2
 531        select SYS_HAS_CPU_MIPS64_R6
 532        select SYS_HAS_CPU_NEVADA
 533        select SYS_HAS_CPU_RM7000
 534        select SYS_SUPPORTS_32BIT_KERNEL
 535        select SYS_SUPPORTS_64BIT_KERNEL
 536        select SYS_SUPPORTS_BIG_ENDIAN
 537        select SYS_SUPPORTS_HIGHMEM
 538        select SYS_SUPPORTS_LITTLE_ENDIAN
 539        select SYS_SUPPORTS_MICROMIPS
 540        select SYS_SUPPORTS_MIPS16
 541        select SYS_SUPPORTS_MIPS_CMP
 542        select SYS_SUPPORTS_MIPS_CPS
 543        select SYS_SUPPORTS_MULTITHREADING
 544        select SYS_SUPPORTS_RELOCATABLE
 545        select SYS_SUPPORTS_SMARTMIPS
 546        select SYS_SUPPORTS_VPE_LOADER
 547        select SYS_SUPPORTS_ZBOOT
 548        select USE_OF
 549        select ZONE_DMA32 if 64BIT
 550        help
 551          This enables support for the MIPS Technologies Malta evaluation
 552          board.
 553
 554config MACH_PIC32
 555        bool "Microchip PIC32 Family"
 556        help
 557          This enables support for the Microchip PIC32 family of platforms.
 558
 559          Microchip PIC32 is a family of general-purpose 32 bit MIPS core
 560          microcontrollers.
 561
 562config NEC_MARKEINS
 563        bool "NEC EMMA2RH Mark-eins board"
 564        select SOC_EMMA2RH
 565        select HAVE_PCI
 566        help
 567          This enables support for the NEC Electronics Mark-eins boards.
 568
 569config MACH_VR41XX
 570        bool "NEC VR4100 series based machines"
 571        select CEVT_R4K
 572        select CSRC_R4K
 573        select SYS_HAS_CPU_VR41XX
 574        select SYS_SUPPORTS_MIPS16
 575        select GPIOLIB
 576
 577config NXP_STB220
 578        bool "NXP STB220 board"
 579        select SOC_PNX833X
 580        help
 581          Support for NXP Semiconductors STB220 Development Board.
 582
 583config NXP_STB225
 584        bool "NXP 225 board"
 585        select SOC_PNX833X
 586        select SOC_PNX8335
 587        help
 588          Support for NXP Semiconductors STB225 Development Board.
 589
 590config PMC_MSP
 591        bool "PMC-Sierra MSP chipsets"
 592        select CEVT_R4K
 593        select CSRC_R4K
 594        select DMA_NONCOHERENT
 595        select SWAP_IO_SPACE
 596        select NO_EXCEPT_FILL
 597        select BOOT_RAW
 598        select SYS_HAS_CPU_MIPS32_R1
 599        select SYS_HAS_CPU_MIPS32_R2
 600        select SYS_SUPPORTS_32BIT_KERNEL
 601        select SYS_SUPPORTS_BIG_ENDIAN
 602        select SYS_SUPPORTS_MIPS16
 603        select IRQ_MIPS_CPU
 604        select SERIAL_8250
 605        select SERIAL_8250_CONSOLE
 606        select USB_EHCI_BIG_ENDIAN_MMIO
 607        select USB_EHCI_BIG_ENDIAN_DESC
 608        help
 609          This adds support for the PMC-Sierra family of Multi-Service
 610          Processor System-On-A-Chips.  These parts include a number
 611          of integrated peripherals, interfaces and DSPs in addition to
 612          a variety of MIPS cores.
 613
 614config RALINK
 615        bool "Ralink based machines"
 616        select CEVT_R4K
 617        select CSRC_R4K
 618        select BOOT_RAW
 619        select DMA_NONCOHERENT
 620        select IRQ_MIPS_CPU
 621        select USE_OF
 622        select SYS_HAS_CPU_MIPS32_R1
 623        select SYS_HAS_CPU_MIPS32_R2
 624        select SYS_SUPPORTS_32BIT_KERNEL
 625        select SYS_SUPPORTS_LITTLE_ENDIAN
 626        select SYS_SUPPORTS_MIPS16
 627        select SYS_HAS_EARLY_PRINTK
 628        select CLKDEV_LOOKUP
 629        select ARCH_HAS_RESET_CONTROLLER
 630        select RESET_CONTROLLER
 631
 632config SGI_IP22
 633        bool "SGI IP22 (Indy/Indigo2)"
 634        select FW_ARC
 635        select FW_ARC32
 636        select ARCH_MIGHT_HAVE_PC_SERIO
 637        select BOOT_ELF32
 638        select CEVT_R4K
 639        select CSRC_R4K
 640        select DEFAULT_SGI_PARTITION
 641        select DMA_NONCOHERENT
 642        select HAVE_EISA
 643        select I8253
 644        select I8259
 645        select IP22_CPU_SCACHE
 646        select IRQ_MIPS_CPU
 647        select GENERIC_ISA_DMA_SUPPORT_BROKEN
 648        select SGI_HAS_I8042
 649        select SGI_HAS_INDYDOG
 650        select SGI_HAS_HAL2
 651        select SGI_HAS_SEEQ
 652        select SGI_HAS_WD93
 653        select SGI_HAS_ZILOG
 654        select SWAP_IO_SPACE
 655        select SYS_HAS_CPU_R4X00
 656        select SYS_HAS_CPU_R5000
 657        #
 658        # Disable EARLY_PRINTK for now since it leads to overwritten prom
 659        # memory during early boot on some machines.
 660        #
 661        # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 662        # for a more details discussion
 663        #
 664        # select SYS_HAS_EARLY_PRINTK
 665        select SYS_SUPPORTS_32BIT_KERNEL
 666        select SYS_SUPPORTS_64BIT_KERNEL
 667        select SYS_SUPPORTS_BIG_ENDIAN
 668        select MIPS_L1_CACHE_SHIFT_7
 669        help
 670          This are the SGI Indy, Challenge S and Indigo2, as well as certain
 671          OEM variants like the Tandem CMN B006S. To compile a Linux kernel
 672          that runs on these, say Y here.
 673
 674config SGI_IP27
 675        bool "SGI IP27 (Origin200/2000)"
 676        select ARCH_HAS_PHYS_TO_DMA
 677        select FW_ARC
 678        select FW_ARC64
 679        select BOOT_ELF64
 680        select DEFAULT_SGI_PARTITION
 681        select SYS_HAS_EARLY_PRINTK
 682        select HAVE_PCI
 683        select IRQ_MIPS_CPU
 684        select IRQ_DOMAIN_HIERARCHY
 685        select NR_CPUS_DEFAULT_64
 686        select PCI_DRIVERS_GENERIC
 687        select PCI_XTALK_BRIDGE
 688        select SYS_HAS_CPU_R10000
 689        select SYS_SUPPORTS_64BIT_KERNEL
 690        select SYS_SUPPORTS_BIG_ENDIAN
 691        select SYS_SUPPORTS_NUMA
 692        select SYS_SUPPORTS_SMP
 693        select MIPS_L1_CACHE_SHIFT_7
 694        help
 695          This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 696          workstations.  To compile a Linux kernel that runs on these, say Y
 697          here.
 698
 699config SGI_IP28
 700        bool "SGI IP28 (Indigo2 R10k)"
 701        select FW_ARC
 702        select FW_ARC64
 703        select ARCH_MIGHT_HAVE_PC_SERIO
 704        select BOOT_ELF64
 705        select CEVT_R4K
 706        select CSRC_R4K
 707        select DEFAULT_SGI_PARTITION
 708        select DMA_NONCOHERENT
 709        select GENERIC_ISA_DMA_SUPPORT_BROKEN
 710        select IRQ_MIPS_CPU
 711        select HAVE_EISA
 712        select I8253
 713        select I8259
 714        select SGI_HAS_I8042
 715        select SGI_HAS_INDYDOG
 716        select SGI_HAS_HAL2
 717        select SGI_HAS_SEEQ
 718        select SGI_HAS_WD93
 719        select SGI_HAS_ZILOG
 720        select SWAP_IO_SPACE
 721        select SYS_HAS_CPU_R10000
 722        #
 723        # Disable EARLY_PRINTK for now since it leads to overwritten prom
 724        # memory during early boot on some machines.
 725        #
 726        # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 727        # for a more details discussion
 728        #
 729        # select SYS_HAS_EARLY_PRINTK
 730        select SYS_SUPPORTS_64BIT_KERNEL
 731        select SYS_SUPPORTS_BIG_ENDIAN
 732        select MIPS_L1_CACHE_SHIFT_7
 733        help
 734          This is the SGI Indigo2 with R10000 processor.  To compile a Linux
 735          kernel that runs on these, say Y here.
 736
 737config SGI_IP32
 738        bool "SGI IP32 (O2)"
 739        select ARCH_HAS_PHYS_TO_DMA
 740        select FW_ARC
 741        select FW_ARC32
 742        select BOOT_ELF32
 743        select CEVT_R4K
 744        select CSRC_R4K
 745        select DMA_NONCOHERENT
 746        select HAVE_PCI
 747        select IRQ_MIPS_CPU
 748        select R5000_CPU_SCACHE
 749        select RM7000_CPU_SCACHE
 750        select SYS_HAS_CPU_R5000
 751        select SYS_HAS_CPU_R10000 if BROKEN
 752        select SYS_HAS_CPU_RM7000
 753        select SYS_HAS_CPU_NEVADA
 754        select SYS_SUPPORTS_64BIT_KERNEL
 755        select SYS_SUPPORTS_BIG_ENDIAN
 756        help
 757          If you want this kernel to run on SGI O2 workstation, say Y here.
 758
 759config SIBYTE_CRHINE
 760        bool "Sibyte BCM91120C-CRhine"
 761        select BOOT_ELF32
 762        select SIBYTE_BCM1120
 763        select SWAP_IO_SPACE
 764        select SYS_HAS_CPU_SB1
 765        select SYS_SUPPORTS_BIG_ENDIAN
 766        select SYS_SUPPORTS_LITTLE_ENDIAN
 767
 768config SIBYTE_CARMEL
 769        bool "Sibyte BCM91120x-Carmel"
 770        select BOOT_ELF32
 771        select SIBYTE_BCM1120
 772        select SWAP_IO_SPACE
 773        select SYS_HAS_CPU_SB1
 774        select SYS_SUPPORTS_BIG_ENDIAN
 775        select SYS_SUPPORTS_LITTLE_ENDIAN
 776
 777config SIBYTE_CRHONE
 778        bool "Sibyte BCM91125C-CRhone"
 779        select BOOT_ELF32
 780        select SIBYTE_BCM1125
 781        select SWAP_IO_SPACE
 782        select SYS_HAS_CPU_SB1
 783        select SYS_SUPPORTS_BIG_ENDIAN
 784        select SYS_SUPPORTS_HIGHMEM
 785        select SYS_SUPPORTS_LITTLE_ENDIAN
 786
 787config SIBYTE_RHONE
 788        bool "Sibyte BCM91125E-Rhone"
 789        select BOOT_ELF32
 790        select SIBYTE_BCM1125H
 791        select SWAP_IO_SPACE
 792        select SYS_HAS_CPU_SB1
 793        select SYS_SUPPORTS_BIG_ENDIAN
 794        select SYS_SUPPORTS_LITTLE_ENDIAN
 795
 796config SIBYTE_SWARM
 797        bool "Sibyte BCM91250A-SWARM"
 798        select BOOT_ELF32
 799        select HAVE_PATA_PLATFORM
 800        select SIBYTE_SB1250
 801        select SWAP_IO_SPACE
 802        select SYS_HAS_CPU_SB1
 803        select SYS_SUPPORTS_BIG_ENDIAN
 804        select SYS_SUPPORTS_HIGHMEM
 805        select SYS_SUPPORTS_LITTLE_ENDIAN
 806        select ZONE_DMA32 if 64BIT
 807        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 808
 809config SIBYTE_LITTLESUR
 810        bool "Sibyte BCM91250C2-LittleSur"
 811        select BOOT_ELF32
 812        select HAVE_PATA_PLATFORM
 813        select SIBYTE_SB1250
 814        select SWAP_IO_SPACE
 815        select SYS_HAS_CPU_SB1
 816        select SYS_SUPPORTS_BIG_ENDIAN
 817        select SYS_SUPPORTS_HIGHMEM
 818        select SYS_SUPPORTS_LITTLE_ENDIAN
 819        select ZONE_DMA32 if 64BIT
 820
 821config SIBYTE_SENTOSA
 822        bool "Sibyte BCM91250E-Sentosa"
 823        select BOOT_ELF32
 824        select SIBYTE_SB1250
 825        select SWAP_IO_SPACE
 826        select SYS_HAS_CPU_SB1
 827        select SYS_SUPPORTS_BIG_ENDIAN
 828        select SYS_SUPPORTS_LITTLE_ENDIAN
 829        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 830
 831config SIBYTE_BIGSUR
 832        bool "Sibyte BCM91480B-BigSur"
 833        select BOOT_ELF32
 834        select NR_CPUS_DEFAULT_4
 835        select SIBYTE_BCM1x80
 836        select SWAP_IO_SPACE
 837        select SYS_HAS_CPU_SB1
 838        select SYS_SUPPORTS_BIG_ENDIAN
 839        select SYS_SUPPORTS_HIGHMEM
 840        select SYS_SUPPORTS_LITTLE_ENDIAN
 841        select ZONE_DMA32 if 64BIT
 842        select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
 843
 844config SNI_RM
 845        bool "SNI RM200/300/400"
 846        select FW_ARC if CPU_LITTLE_ENDIAN
 847        select FW_ARC32 if CPU_LITTLE_ENDIAN
 848        select FW_SNIPROM if CPU_BIG_ENDIAN
 849        select ARCH_MAY_HAVE_PC_FDC
 850        select ARCH_MIGHT_HAVE_PC_PARPORT
 851        select ARCH_MIGHT_HAVE_PC_SERIO
 852        select BOOT_ELF32
 853        select CEVT_R4K
 854        select CSRC_R4K
 855        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 856        select DMA_NONCOHERENT
 857        select GENERIC_ISA_DMA
 858        select HAVE_EISA
 859        select HAVE_PCSPKR_PLATFORM
 860        select HAVE_PCI
 861        select IRQ_MIPS_CPU
 862        select I8253
 863        select I8259
 864        select ISA
 865        select SWAP_IO_SPACE if CPU_BIG_ENDIAN
 866        select SYS_HAS_CPU_R4X00
 867        select SYS_HAS_CPU_R5000
 868        select SYS_HAS_CPU_R10000
 869        select R5000_CPU_SCACHE
 870        select SYS_HAS_EARLY_PRINTK
 871        select SYS_SUPPORTS_32BIT_KERNEL
 872        select SYS_SUPPORTS_64BIT_KERNEL
 873        select SYS_SUPPORTS_BIG_ENDIAN
 874        select SYS_SUPPORTS_HIGHMEM
 875        select SYS_SUPPORTS_LITTLE_ENDIAN
 876        help
 877          The SNI RM200/300/400 are MIPS-based machines manufactured by
 878          Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
 879          Technology and now in turn merged with Fujitsu.  Say Y here to
 880          support this machine type.
 881
 882config MACH_TX39XX
 883        bool "Toshiba TX39 series based machines"
 884
 885config MACH_TX49XX
 886        bool "Toshiba TX49 series based machines"
 887
 888config MIKROTIK_RB532
 889        bool "Mikrotik RB532 boards"
 890        select CEVT_R4K
 891        select CSRC_R4K
 892        select DMA_NONCOHERENT
 893        select HAVE_PCI
 894        select IRQ_MIPS_CPU
 895        select SYS_HAS_CPU_MIPS32_R1
 896        select SYS_SUPPORTS_32BIT_KERNEL
 897        select SYS_SUPPORTS_LITTLE_ENDIAN
 898        select SWAP_IO_SPACE
 899        select BOOT_RAW
 900        select GPIOLIB
 901        select MIPS_L1_CACHE_SHIFT_4
 902        help
 903          Support the Mikrotik(tm) RouterBoard 532 series,
 904          based on the IDT RC32434 SoC.
 905
 906config CAVIUM_OCTEON_SOC
 907        bool "Cavium Networks Octeon SoC based boards"
 908        select CEVT_R4K
 909        select ARCH_HAS_PHYS_TO_DMA
 910        select HAVE_RAPIDIO
 911        select PHYS_ADDR_T_64BIT
 912        select SYS_SUPPORTS_64BIT_KERNEL
 913        select SYS_SUPPORTS_BIG_ENDIAN
 914        select EDAC_SUPPORT
 915        select EDAC_ATOMIC_SCRUB
 916        select SYS_SUPPORTS_LITTLE_ENDIAN
 917        select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
 918        select SYS_HAS_EARLY_PRINTK
 919        select SYS_HAS_CPU_CAVIUM_OCTEON
 920        select HAVE_PCI
 921        select ZONE_DMA32
 922        select HOLES_IN_ZONE
 923        select GPIOLIB
 924        select LIBFDT
 925        select USE_OF
 926        select ARCH_SPARSEMEM_ENABLE
 927        select SYS_SUPPORTS_SMP
 928        select NR_CPUS_DEFAULT_64
 929        select MIPS_NR_CPU_NR_MAP_1024
 930        select BUILTIN_DTB
 931        select MTD_COMPLEX_MAPPINGS
 932        select SWIOTLB
 933        select SYS_SUPPORTS_RELOCATABLE
 934        help
 935          This option supports all of the Octeon reference boards from Cavium
 936          Networks. It builds a kernel that dynamically determines the Octeon
 937          CPU type and supports all known board reference implementations.
 938          Some of the supported boards are:
 939                EBT3000
 940                EBH3000
 941                EBH3100
 942                Thunder
 943                Kodama
 944                Hikari
 945          Say Y here for most Octeon reference boards.
 946
 947config NLM_XLR_BOARD
 948        bool "Netlogic XLR/XLS based systems"
 949        select BOOT_ELF32
 950        select NLM_COMMON
 951        select SYS_HAS_CPU_XLR
 952        select SYS_SUPPORTS_SMP
 953        select HAVE_PCI
 954        select SWAP_IO_SPACE
 955        select SYS_SUPPORTS_32BIT_KERNEL
 956        select SYS_SUPPORTS_64BIT_KERNEL
 957        select PHYS_ADDR_T_64BIT
 958        select SYS_SUPPORTS_BIG_ENDIAN
 959        select SYS_SUPPORTS_HIGHMEM
 960        select NR_CPUS_DEFAULT_32
 961        select CEVT_R4K
 962        select CSRC_R4K
 963        select IRQ_MIPS_CPU
 964        select ZONE_DMA32 if 64BIT
 965        select SYNC_R4K
 966        select SYS_HAS_EARLY_PRINTK
 967        select SYS_SUPPORTS_ZBOOT
 968        select SYS_SUPPORTS_ZBOOT_UART16550
 969        help
 970          Support for systems based on Netlogic XLR and XLS processors.
 971          Say Y here if you have a XLR or XLS based board.
 972
 973config NLM_XLP_BOARD
 974        bool "Netlogic XLP based systems"
 975        select BOOT_ELF32
 976        select NLM_COMMON
 977        select SYS_HAS_CPU_XLP
 978        select SYS_SUPPORTS_SMP
 979        select HAVE_PCI
 980        select SYS_SUPPORTS_32BIT_KERNEL
 981        select SYS_SUPPORTS_64BIT_KERNEL
 982        select PHYS_ADDR_T_64BIT
 983        select GPIOLIB
 984        select SYS_SUPPORTS_BIG_ENDIAN
 985        select SYS_SUPPORTS_LITTLE_ENDIAN
 986        select SYS_SUPPORTS_HIGHMEM
 987        select NR_CPUS_DEFAULT_32
 988        select CEVT_R4K
 989        select CSRC_R4K
 990        select IRQ_MIPS_CPU
 991        select ZONE_DMA32 if 64BIT
 992        select SYNC_R4K
 993        select SYS_HAS_EARLY_PRINTK
 994        select USE_OF
 995        select SYS_SUPPORTS_ZBOOT
 996        select SYS_SUPPORTS_ZBOOT_UART16550
 997        help
 998          This board is based on Netlogic XLP Processor.
 999          Say Y here if you have a XLP based board.
1000
1001config MIPS_PARAVIRT
1002        bool "Para-Virtualized guest system"
1003        select CEVT_R4K
1004        select CSRC_R4K
1005        select SYS_SUPPORTS_64BIT_KERNEL
1006        select SYS_SUPPORTS_32BIT_KERNEL
1007        select SYS_SUPPORTS_BIG_ENDIAN
1008        select SYS_SUPPORTS_SMP
1009        select NR_CPUS_DEFAULT_4
1010        select SYS_HAS_EARLY_PRINTK
1011        select SYS_HAS_CPU_MIPS32_R2
1012        select SYS_HAS_CPU_MIPS64_R2
1013        select SYS_HAS_CPU_CAVIUM_OCTEON
1014        select HAVE_PCI
1015        select SWAP_IO_SPACE
1016        help
1017          This option supports guest running under ????
1018
1019endchoice
1020
1021source "arch/mips/alchemy/Kconfig"
1022source "arch/mips/ath25/Kconfig"
1023source "arch/mips/ath79/Kconfig"
1024source "arch/mips/bcm47xx/Kconfig"
1025source "arch/mips/bcm63xx/Kconfig"
1026source "arch/mips/bmips/Kconfig"
1027source "arch/mips/generic/Kconfig"
1028source "arch/mips/jazz/Kconfig"
1029source "arch/mips/jz4740/Kconfig"
1030source "arch/mips/lantiq/Kconfig"
1031source "arch/mips/lasat/Kconfig"
1032source "arch/mips/pic32/Kconfig"
1033source "arch/mips/pistachio/Kconfig"
1034source "arch/mips/pmcs-msp71xx/Kconfig"
1035source "arch/mips/ralink/Kconfig"
1036source "arch/mips/sgi-ip27/Kconfig"
1037source "arch/mips/sibyte/Kconfig"
1038source "arch/mips/txx9/Kconfig"
1039source "arch/mips/vr41xx/Kconfig"
1040source "arch/mips/cavium-octeon/Kconfig"
1041source "arch/mips/loongson32/Kconfig"
1042source "arch/mips/loongson64/Kconfig"
1043source "arch/mips/netlogic/Kconfig"
1044source "arch/mips/paravirt/Kconfig"
1045
1046endmenu
1047
1048config GENERIC_HWEIGHT
1049        bool
1050        default y
1051
1052config GENERIC_CALIBRATE_DELAY
1053        bool
1054        default y
1055
1056config SCHED_OMIT_FRAME_POINTER
1057        bool
1058        default y
1059
1060#
1061# Select some configuration options automatically based on user selections.
1062#
1063config FW_ARC
1064        bool
1065
1066config ARCH_MAY_HAVE_PC_FDC
1067        bool
1068
1069config BOOT_RAW
1070        bool
1071
1072config CEVT_BCM1480
1073        bool
1074
1075config CEVT_DS1287
1076        bool
1077
1078config CEVT_GT641XX
1079        bool
1080
1081config CEVT_R4K
1082        bool
1083
1084config CEVT_SB1250
1085        bool
1086
1087config CEVT_TXX9
1088        bool
1089
1090config CSRC_BCM1480
1091        bool
1092
1093config CSRC_IOASIC
1094        bool
1095
1096config CSRC_R4K
1097        bool
1098
1099config CSRC_SB1250
1100        bool
1101
1102config MIPS_CLOCK_VSYSCALL
1103        def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1104
1105config GPIO_TXX9
1106        select GPIOLIB
1107        bool
1108
1109config FW_CFE
1110        bool
1111
1112config ARCH_SUPPORTS_UPROBES
1113        bool
1114
1115config DMA_MAYBE_COHERENT
1116        select ARCH_HAS_DMA_COHERENCE_H
1117        select DMA_NONCOHERENT
1118        bool
1119
1120config DMA_PERDEV_COHERENT
1121        bool
1122        select ARCH_HAS_SETUP_DMA_OPS
1123        select DMA_NONCOHERENT
1124
1125config DMA_NONCOHERENT
1126        bool
1127        #
1128        # MIPS allows mixing "slightly different" Cacheability and Coherency
1129        # Attribute bits.  It is believed that the uncached access through
1130        # KSEG1 and the implementation specific "uncached accelerated" used
1131        # by pgprot_writcombine can be mixed, and the latter sometimes provides
1132        # significant advantages.
1133        #
1134        select ARCH_HAS_DMA_WRITE_COMBINE
1135        select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1136        select ARCH_HAS_UNCACHED_SEGMENT
1137        select NEED_DMA_MAP_STATE
1138        select ARCH_HAS_DMA_COHERENT_TO_PFN
1139        select DMA_NONCOHERENT_CACHE_SYNC
1140
1141config SYS_HAS_EARLY_PRINTK
1142        bool
1143
1144config SYS_SUPPORTS_HOTPLUG_CPU
1145        bool
1146
1147config MIPS_BONITO64
1148        bool
1149
1150config MIPS_MSC
1151        bool
1152
1153config MIPS_NILE4
1154        bool
1155
1156config SYNC_R4K
1157        bool
1158
1159config MIPS_MACHINE
1160        def_bool n
1161
1162config NO_IOPORT_MAP
1163        def_bool n
1164
1165config GENERIC_CSUM
1166        bool
1167        default y if !CPU_HAS_LOAD_STORE_LR
1168
1169config GENERIC_ISA_DMA
1170        bool
1171        select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1172        select ISA_DMA_API
1173
1174config GENERIC_ISA_DMA_SUPPORT_BROKEN
1175        bool
1176        select GENERIC_ISA_DMA
1177
1178config ISA_DMA_API
1179        bool
1180
1181config HOLES_IN_ZONE
1182        bool
1183
1184config SYS_SUPPORTS_RELOCATABLE
1185        bool
1186        help
1187          Selected if the platform supports relocating the kernel.
1188          The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1189          to allow access to command line and entropy sources.
1190
1191config MIPS_CBPF_JIT
1192        def_bool y
1193        depends on BPF_JIT && HAVE_CBPF_JIT
1194
1195config MIPS_EBPF_JIT
1196        def_bool y
1197        depends on BPF_JIT && HAVE_EBPF_JIT
1198
1199
1200#
1201# Endianness selection.  Sufficiently obscure so many users don't know what to
1202# answer,so we try hard to limit the available choices.  Also the use of a
1203# choice statement should be more obvious to the user.
1204#
1205choice
1206        prompt "Endianness selection"
1207        help
1208          Some MIPS machines can be configured for either little or big endian
1209          byte order. These modes require different kernels and a different
1210          Linux distribution.  In general there is one preferred byteorder for a
1211          particular system but some systems are just as commonly used in the
1212          one or the other endianness.
1213
1214config CPU_BIG_ENDIAN
1215        bool "Big endian"
1216        depends on SYS_SUPPORTS_BIG_ENDIAN
1217
1218config CPU_LITTLE_ENDIAN
1219        bool "Little endian"
1220        depends on SYS_SUPPORTS_LITTLE_ENDIAN
1221
1222endchoice
1223
1224config EXPORT_UASM
1225        bool
1226
1227config SYS_SUPPORTS_APM_EMULATION
1228        bool
1229
1230config SYS_SUPPORTS_BIG_ENDIAN
1231        bool
1232
1233config SYS_SUPPORTS_LITTLE_ENDIAN
1234        bool
1235
1236config SYS_SUPPORTS_HUGETLBFS
1237        bool
1238        depends on CPU_SUPPORTS_HUGEPAGES
1239        default y
1240
1241config MIPS_HUGE_TLB_SUPPORT
1242        def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1243
1244config IRQ_CPU_RM7K
1245        bool
1246
1247config IRQ_MSP_SLP
1248        bool
1249
1250config IRQ_MSP_CIC
1251        bool
1252
1253config IRQ_TXX9
1254        bool
1255
1256config IRQ_GT641XX
1257        bool
1258
1259config PCI_GT64XXX_PCI0
1260        bool
1261
1262config PCI_XTALK_BRIDGE
1263        bool
1264
1265config NO_EXCEPT_FILL
1266        bool
1267
1268config SOC_EMMA2RH
1269        bool
1270        select CEVT_R4K
1271        select CSRC_R4K
1272        select DMA_NONCOHERENT
1273        select IRQ_MIPS_CPU
1274        select SWAP_IO_SPACE
1275        select SYS_HAS_CPU_R5500
1276        select SYS_SUPPORTS_32BIT_KERNEL
1277        select SYS_SUPPORTS_64BIT_KERNEL
1278        select SYS_SUPPORTS_BIG_ENDIAN
1279
1280config SOC_PNX833X
1281        bool
1282        select CEVT_R4K
1283        select CSRC_R4K
1284        select IRQ_MIPS_CPU
1285        select DMA_NONCOHERENT
1286        select SYS_HAS_CPU_MIPS32_R2
1287        select SYS_SUPPORTS_32BIT_KERNEL
1288        select SYS_SUPPORTS_LITTLE_ENDIAN
1289        select SYS_SUPPORTS_BIG_ENDIAN
1290        select SYS_SUPPORTS_MIPS16
1291        select CPU_MIPSR2_IRQ_VI
1292
1293config SOC_PNX8335
1294        bool
1295        select SOC_PNX833X
1296
1297config MIPS_SPRAM
1298        bool
1299
1300config SWAP_IO_SPACE
1301        bool
1302
1303config SGI_HAS_INDYDOG
1304        bool
1305
1306config SGI_HAS_HAL2
1307        bool
1308
1309config SGI_HAS_SEEQ
1310        bool
1311
1312config SGI_HAS_WD93
1313        bool
1314
1315config SGI_HAS_ZILOG
1316        bool
1317
1318config SGI_HAS_I8042
1319        bool
1320
1321config DEFAULT_SGI_PARTITION
1322        bool
1323
1324config FW_ARC32
1325        bool
1326
1327config FW_SNIPROM
1328        bool
1329
1330config BOOT_ELF32
1331        bool
1332
1333config MIPS_L1_CACHE_SHIFT_4
1334        bool
1335
1336config MIPS_L1_CACHE_SHIFT_5
1337        bool
1338
1339config MIPS_L1_CACHE_SHIFT_6
1340        bool
1341
1342config MIPS_L1_CACHE_SHIFT_7
1343        bool
1344
1345config MIPS_L1_CACHE_SHIFT
1346        int
1347        default "7" if MIPS_L1_CACHE_SHIFT_7
1348        default "6" if MIPS_L1_CACHE_SHIFT_6
1349        default "5" if MIPS_L1_CACHE_SHIFT_5
1350        default "4" if MIPS_L1_CACHE_SHIFT_4
1351        default "5"
1352
1353config HAVE_STD_PC_SERIAL_PORT
1354        bool
1355
1356config ARC_CONSOLE
1357        bool "ARC console support"
1358        depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1359
1360config ARC_MEMORY
1361        bool
1362        depends on MACH_JAZZ || SNI_RM || SGI_IP32
1363        default y
1364
1365config ARC_PROMLIB
1366        bool
1367        depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1368        default y
1369
1370config FW_ARC64
1371        bool
1372
1373config BOOT_ELF64
1374        bool
1375
1376menu "CPU selection"
1377
1378choice
1379        prompt "CPU type"
1380        default CPU_R4X00
1381
1382config CPU_LOONGSON3
1383        bool "Loongson 3 CPU"
1384        depends on SYS_HAS_CPU_LOONGSON3
1385        select ARCH_HAS_PHYS_TO_DMA
1386        select CPU_SUPPORTS_64BIT_KERNEL
1387        select CPU_SUPPORTS_HIGHMEM
1388        select CPU_SUPPORTS_HUGEPAGES
1389        select CPU_HAS_LOAD_STORE_LR
1390        select WEAK_ORDERING
1391        select WEAK_REORDERING_BEYOND_LLSC
1392        select MIPS_PGD_C0_CONTEXT
1393        select MIPS_L1_CACHE_SHIFT_6
1394        select GPIOLIB
1395        select SWIOTLB
1396        help
1397                The Loongson 3 processor implements the MIPS64R2 instruction
1398                set with many extensions.
1399
1400config LOONGSON3_ENHANCEMENT
1401        bool "New Loongson 3 CPU Enhancements"
1402        default n
1403        select CPU_MIPSR2
1404        select CPU_HAS_PREFETCH
1405        depends on CPU_LOONGSON3
1406        help
1407          New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
1408          R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1409          FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
1410          Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1411          Fast TLB refill support, etc.
1412
1413          This option enable those enhancements which are not probed at run
1414          time. If you want a generic kernel to run on all Loongson 3 machines,
1415          please say 'N' here. If you want a high-performance kernel to run on
1416          new Loongson 3 machines only, please say 'Y' here.
1417
1418config CPU_LOONGSON3_WORKAROUNDS
1419        bool "Old Loongson 3 LLSC Workarounds"
1420        default y if SMP
1421        depends on CPU_LOONGSON3
1422        help
1423          Loongson 3 processors have the llsc issues which require workarounds.
1424          Without workarounds the system may hang unexpectedly.
1425
1426          Newer Loongson 3 will fix these issues and no workarounds are needed.
1427          The workarounds have no significant side effect on them but may
1428          decrease the performance of the system so this option should be
1429          disabled unless the kernel is intended to be run on old systems.
1430
1431          If unsure, please say Y.
1432
1433config CPU_LOONGSON2E
1434        bool "Loongson 2E"
1435        depends on SYS_HAS_CPU_LOONGSON2E
1436        select CPU_LOONGSON2
1437        help
1438          The Loongson 2E processor implements the MIPS III instruction set
1439          with many extensions.
1440
1441          It has an internal FPGA northbridge, which is compatible to
1442          bonito64.
1443
1444config CPU_LOONGSON2F
1445        bool "Loongson 2F"
1446        depends on SYS_HAS_CPU_LOONGSON2F
1447        select CPU_LOONGSON2
1448        select GPIOLIB
1449        help
1450          The Loongson 2F processor implements the MIPS III instruction set
1451          with many extensions.
1452
1453          Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1454          have a similar programming interface with FPGA northbridge used in
1455          Loongson2E.
1456
1457config CPU_LOONGSON1B
1458        bool "Loongson 1B"
1459        depends on SYS_HAS_CPU_LOONGSON1B
1460        select CPU_LOONGSON1
1461        select LEDS_GPIO_REGISTER
1462        help
1463          The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1464          Release 1 instruction set and part of the MIPS32 Release 2
1465          instruction set.
1466
1467config CPU_LOONGSON1C
1468        bool "Loongson 1C"
1469        depends on SYS_HAS_CPU_LOONGSON1C
1470        select CPU_LOONGSON1
1471        select LEDS_GPIO_REGISTER
1472        help
1473          The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1474          Release 1 instruction set and part of the MIPS32 Release 2
1475          instruction set.
1476
1477config CPU_MIPS32_R1
1478        bool "MIPS32 Release 1"
1479        depends on SYS_HAS_CPU_MIPS32_R1
1480        select CPU_HAS_PREFETCH
1481        select CPU_HAS_LOAD_STORE_LR
1482        select CPU_SUPPORTS_32BIT_KERNEL
1483        select CPU_SUPPORTS_HIGHMEM
1484        help
1485          Choose this option to build a kernel for release 1 or later of the
1486          MIPS32 architecture.  Most modern embedded systems with a 32-bit
1487          MIPS processor are based on a MIPS32 processor.  If you know the
1488          specific type of processor in your system, choose those that one
1489          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1490          Release 2 of the MIPS32 architecture is available since several
1491          years so chances are you even have a MIPS32 Release 2 processor
1492          in which case you should choose CPU_MIPS32_R2 instead for better
1493          performance.
1494
1495config CPU_MIPS32_R2
1496        bool "MIPS32 Release 2"
1497        depends on SYS_HAS_CPU_MIPS32_R2
1498        select CPU_HAS_PREFETCH
1499        select CPU_HAS_LOAD_STORE_LR
1500        select CPU_SUPPORTS_32BIT_KERNEL
1501        select CPU_SUPPORTS_HIGHMEM
1502        select CPU_SUPPORTS_MSA
1503        select HAVE_KVM
1504        help
1505          Choose this option to build a kernel for release 2 or later of the
1506          MIPS32 architecture.  Most modern embedded systems with a 32-bit
1507          MIPS processor are based on a MIPS32 processor.  If you know the
1508          specific type of processor in your system, choose those that one
1509          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1510
1511config CPU_MIPS32_R6
1512        bool "MIPS32 Release 6"
1513        depends on SYS_HAS_CPU_MIPS32_R6
1514        select CPU_HAS_PREFETCH
1515        select CPU_SUPPORTS_32BIT_KERNEL
1516        select CPU_SUPPORTS_HIGHMEM
1517        select CPU_SUPPORTS_MSA
1518        select HAVE_KVM
1519        select MIPS_O32_FP64_SUPPORT
1520        help
1521          Choose this option to build a kernel for release 6 or later of the
1522          MIPS32 architecture.  New MIPS processors, starting with the Warrior
1523          family, are based on a MIPS32r6 processor. If you own an older
1524          processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1525
1526config CPU_MIPS64_R1
1527        bool "MIPS64 Release 1"
1528        depends on SYS_HAS_CPU_MIPS64_R1
1529        select CPU_HAS_PREFETCH
1530        select CPU_HAS_LOAD_STORE_LR
1531        select CPU_SUPPORTS_32BIT_KERNEL
1532        select CPU_SUPPORTS_64BIT_KERNEL
1533        select CPU_SUPPORTS_HIGHMEM
1534        select CPU_SUPPORTS_HUGEPAGES
1535        help
1536          Choose this option to build a kernel for release 1 or later of the
1537          MIPS64 architecture.  Many modern embedded systems with a 64-bit
1538          MIPS processor are based on a MIPS64 processor.  If you know the
1539          specific type of processor in your system, choose those that one
1540          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1541          Release 2 of the MIPS64 architecture is available since several
1542          years so chances are you even have a MIPS64 Release 2 processor
1543          in which case you should choose CPU_MIPS64_R2 instead for better
1544          performance.
1545
1546config CPU_MIPS64_R2
1547        bool "MIPS64 Release 2"
1548        depends on SYS_HAS_CPU_MIPS64_R2
1549        select CPU_HAS_PREFETCH
1550        select CPU_HAS_LOAD_STORE_LR
1551        select CPU_SUPPORTS_32BIT_KERNEL
1552        select CPU_SUPPORTS_64BIT_KERNEL
1553        select CPU_SUPPORTS_HIGHMEM
1554        select CPU_SUPPORTS_HUGEPAGES
1555        select CPU_SUPPORTS_MSA
1556        select HAVE_KVM
1557        help
1558          Choose this option to build a kernel for release 2 or later of the
1559          MIPS64 architecture.  Many modern embedded systems with a 64-bit
1560          MIPS processor are based on a MIPS64 processor.  If you know the
1561          specific type of processor in your system, choose those that one
1562          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1563
1564config CPU_MIPS64_R6
1565        bool "MIPS64 Release 6"
1566        depends on SYS_HAS_CPU_MIPS64_R6
1567        select CPU_HAS_PREFETCH
1568        select CPU_SUPPORTS_32BIT_KERNEL
1569        select CPU_SUPPORTS_64BIT_KERNEL
1570        select CPU_SUPPORTS_HIGHMEM
1571        select CPU_SUPPORTS_HUGEPAGES
1572        select CPU_SUPPORTS_MSA
1573        select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1574        select HAVE_KVM
1575        help
1576          Choose this option to build a kernel for release 6 or later of the
1577          MIPS64 architecture.  New MIPS processors, starting with the Warrior
1578          family, are based on a MIPS64r6 processor. If you own an older
1579          processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1580
1581config CPU_R3000
1582        bool "R3000"
1583        depends on SYS_HAS_CPU_R3000
1584        select CPU_HAS_WB
1585        select CPU_HAS_LOAD_STORE_LR
1586        select CPU_R3K_TLB
1587        select CPU_SUPPORTS_32BIT_KERNEL
1588        select CPU_SUPPORTS_HIGHMEM
1589        help
1590          Please make sure to pick the right CPU type. Linux/MIPS is not
1591          designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1592          *not* work on R4000 machines and vice versa.  However, since most
1593          of the supported machines have an R4000 (or similar) CPU, R4x00
1594          might be a safe bet.  If the resulting kernel does not work,
1595          try to recompile with R3000.
1596
1597config CPU_TX39XX
1598        bool "R39XX"
1599        depends on SYS_HAS_CPU_TX39XX
1600        select CPU_SUPPORTS_32BIT_KERNEL
1601        select CPU_HAS_LOAD_STORE_LR
1602        select CPU_R3K_TLB
1603
1604config CPU_VR41XX
1605        bool "R41xx"
1606        depends on SYS_HAS_CPU_VR41XX
1607        select CPU_SUPPORTS_32BIT_KERNEL
1608        select CPU_SUPPORTS_64BIT_KERNEL
1609        select CPU_HAS_LOAD_STORE_LR
1610        help
1611          The options selects support for the NEC VR4100 series of processors.
1612          Only choose this option if you have one of these processors as a
1613          kernel built with this option will not run on any other type of
1614          processor or vice versa.
1615
1616config CPU_R4X00
1617        bool "R4x00"
1618        depends on SYS_HAS_CPU_R4X00
1619        select CPU_SUPPORTS_32BIT_KERNEL
1620        select CPU_SUPPORTS_64BIT_KERNEL
1621        select CPU_SUPPORTS_HUGEPAGES
1622        select CPU_HAS_LOAD_STORE_LR
1623        help
1624          MIPS Technologies R4000-series processors other than 4300, including
1625          the R4000, R4400, R4600, and 4700.
1626
1627config CPU_TX49XX
1628        bool "R49XX"
1629        depends on SYS_HAS_CPU_TX49XX
1630        select CPU_HAS_PREFETCH
1631        select CPU_HAS_LOAD_STORE_LR
1632        select CPU_SUPPORTS_32BIT_KERNEL
1633        select CPU_SUPPORTS_64BIT_KERNEL
1634        select CPU_SUPPORTS_HUGEPAGES
1635
1636config CPU_R5000
1637        bool "R5000"
1638        depends on SYS_HAS_CPU_R5000
1639        select CPU_SUPPORTS_32BIT_KERNEL
1640        select CPU_SUPPORTS_64BIT_KERNEL
1641        select CPU_SUPPORTS_HUGEPAGES
1642        select CPU_HAS_LOAD_STORE_LR
1643        help
1644          MIPS Technologies R5000-series processors other than the Nevada.
1645
1646config CPU_R5500
1647        bool "R5500"
1648        depends on SYS_HAS_CPU_R5500
1649        select CPU_SUPPORTS_32BIT_KERNEL
1650        select CPU_SUPPORTS_64BIT_KERNEL
1651        select CPU_SUPPORTS_HUGEPAGES
1652        select CPU_HAS_LOAD_STORE_LR
1653        help
1654          NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1655          instruction set.
1656
1657config CPU_NEVADA
1658        bool "RM52xx"
1659        depends on SYS_HAS_CPU_NEVADA
1660        select CPU_SUPPORTS_32BIT_KERNEL
1661        select CPU_SUPPORTS_64BIT_KERNEL
1662        select CPU_SUPPORTS_HUGEPAGES
1663        select CPU_HAS_LOAD_STORE_LR
1664        help
1665          QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1666
1667config CPU_R10000
1668        bool "R10000"
1669        depends on SYS_HAS_CPU_R10000
1670        select CPU_HAS_PREFETCH
1671        select CPU_HAS_LOAD_STORE_LR
1672        select CPU_SUPPORTS_32BIT_KERNEL
1673        select CPU_SUPPORTS_64BIT_KERNEL
1674        select CPU_SUPPORTS_HIGHMEM
1675        select CPU_SUPPORTS_HUGEPAGES
1676        help
1677          MIPS Technologies R10000-series processors.
1678
1679config CPU_RM7000
1680        bool "RM7000"
1681        depends on SYS_HAS_CPU_RM7000
1682        select CPU_HAS_PREFETCH
1683        select CPU_HAS_LOAD_STORE_LR
1684        select CPU_SUPPORTS_32BIT_KERNEL
1685        select CPU_SUPPORTS_64BIT_KERNEL
1686        select CPU_SUPPORTS_HIGHMEM
1687        select CPU_SUPPORTS_HUGEPAGES
1688
1689config CPU_SB1
1690        bool "SB1"
1691        depends on SYS_HAS_CPU_SB1
1692        select CPU_HAS_LOAD_STORE_LR
1693        select CPU_SUPPORTS_32BIT_KERNEL
1694        select CPU_SUPPORTS_64BIT_KERNEL
1695        select CPU_SUPPORTS_HIGHMEM
1696        select CPU_SUPPORTS_HUGEPAGES
1697        select WEAK_ORDERING
1698
1699config CPU_CAVIUM_OCTEON
1700        bool "Cavium Octeon processor"
1701        depends on SYS_HAS_CPU_CAVIUM_OCTEON
1702        select CPU_HAS_PREFETCH
1703        select CPU_HAS_LOAD_STORE_LR
1704        select CPU_SUPPORTS_64BIT_KERNEL
1705        select WEAK_ORDERING
1706        select CPU_SUPPORTS_HIGHMEM
1707        select CPU_SUPPORTS_HUGEPAGES
1708        select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1709        select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1710        select MIPS_L1_CACHE_SHIFT_7
1711        select HAVE_KVM
1712        help
1713          The Cavium Octeon processor is a highly integrated chip containing
1714          many ethernet hardware widgets for networking tasks. The processor
1715          can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1716          Full details can be found at http://www.caviumnetworks.com.
1717
1718config CPU_BMIPS
1719        bool "Broadcom BMIPS"
1720        depends on SYS_HAS_CPU_BMIPS
1721        select CPU_MIPS32
1722        select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1723        select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1724        select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1725        select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1726        select CPU_SUPPORTS_32BIT_KERNEL
1727        select DMA_NONCOHERENT
1728        select IRQ_MIPS_CPU
1729        select SWAP_IO_SPACE
1730        select WEAK_ORDERING
1731        select CPU_SUPPORTS_HIGHMEM
1732        select CPU_HAS_PREFETCH
1733        select CPU_HAS_LOAD_STORE_LR
1734        select CPU_SUPPORTS_CPUFREQ
1735        select MIPS_EXTERNAL_TIMER
1736        help
1737          Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1738
1739config CPU_XLR
1740        bool "Netlogic XLR SoC"
1741        depends on SYS_HAS_CPU_XLR
1742        select CPU_HAS_LOAD_STORE_LR
1743        select CPU_SUPPORTS_32BIT_KERNEL
1744        select CPU_SUPPORTS_64BIT_KERNEL
1745        select CPU_SUPPORTS_HIGHMEM
1746        select CPU_SUPPORTS_HUGEPAGES
1747        select WEAK_ORDERING
1748        select WEAK_REORDERING_BEYOND_LLSC
1749        help
1750          Netlogic Microsystems XLR/XLS processors.
1751
1752config CPU_XLP
1753        bool "Netlogic XLP SoC"
1754        depends on SYS_HAS_CPU_XLP
1755        select CPU_SUPPORTS_32BIT_KERNEL
1756        select CPU_SUPPORTS_64BIT_KERNEL
1757        select CPU_SUPPORTS_HIGHMEM
1758        select WEAK_ORDERING
1759        select WEAK_REORDERING_BEYOND_LLSC
1760        select CPU_HAS_PREFETCH
1761        select CPU_HAS_LOAD_STORE_LR
1762        select CPU_MIPSR2
1763        select CPU_SUPPORTS_HUGEPAGES
1764        select MIPS_ASID_BITS_VARIABLE
1765        help
1766          Netlogic Microsystems XLP processors.
1767endchoice
1768
1769config CPU_MIPS32_3_5_FEATURES
1770        bool "MIPS32 Release 3.5 Features"
1771        depends on SYS_HAS_CPU_MIPS32_R3_5
1772        depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1773        help
1774          Choose this option to build a kernel for release 2 or later of the
1775          MIPS32 architecture including features from the 3.5 release such as
1776          support for Enhanced Virtual Addressing (EVA).
1777
1778config CPU_MIPS32_3_5_EVA
1779        bool "Enhanced Virtual Addressing (EVA)"
1780        depends on CPU_MIPS32_3_5_FEATURES
1781        select EVA
1782        default y
1783        help
1784          Choose this option if you want to enable the Enhanced Virtual
1785          Addressing (EVA) on your MIPS32 core (such as proAptiv).
1786          One of its primary benefits is an increase in the maximum size
1787          of lowmem (up to 3GB). If unsure, say 'N' here.
1788
1789config CPU_MIPS32_R5_FEATURES
1790        bool "MIPS32 Release 5 Features"
1791        depends on SYS_HAS_CPU_MIPS32_R5
1792        depends on CPU_MIPS32_R2
1793        help
1794          Choose this option to build a kernel for release 2 or later of the
1795          MIPS32 architecture including features from release 5 such as
1796          support for Extended Physical Addressing (XPA).
1797
1798config CPU_MIPS32_R5_XPA
1799        bool "Extended Physical Addressing (XPA)"
1800        depends on CPU_MIPS32_R5_FEATURES
1801        depends on !EVA
1802        depends on !PAGE_SIZE_4KB
1803        depends on SYS_SUPPORTS_HIGHMEM
1804        select XPA
1805        select HIGHMEM
1806        select PHYS_ADDR_T_64BIT
1807        default n
1808        help
1809          Choose this option if you want to enable the Extended Physical
1810          Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1811          benefit is to increase physical addressing equal to or greater
1812          than 40 bits. Note that this has the side effect of turning on
1813          64-bit addressing which in turn makes the PTEs 64-bit in size.
1814          If unsure, say 'N' here.
1815
1816if CPU_LOONGSON2F
1817config CPU_NOP_WORKAROUNDS
1818        bool
1819
1820config CPU_JUMP_WORKAROUNDS
1821        bool
1822
1823config CPU_LOONGSON2F_WORKAROUNDS
1824        bool "Loongson 2F Workarounds"
1825        default y
1826        select CPU_NOP_WORKAROUNDS
1827        select CPU_JUMP_WORKAROUNDS
1828        help
1829          Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1830          require workarounds.  Without workarounds the system may hang
1831          unexpectedly.  For more information please refer to the gas
1832          -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1833
1834          Loongson 2F03 and later have fixed these issues and no workarounds
1835          are needed.  The workarounds have no significant side effect on them
1836          but may decrease the performance of the system so this option should
1837          be disabled unless the kernel is intended to be run on 2F01 or 2F02
1838          systems.
1839
1840          If unsure, please say Y.
1841endif # CPU_LOONGSON2F
1842
1843config SYS_SUPPORTS_ZBOOT
1844        bool
1845        select HAVE_KERNEL_GZIP
1846        select HAVE_KERNEL_BZIP2
1847        select HAVE_KERNEL_LZ4
1848        select HAVE_KERNEL_LZMA
1849        select HAVE_KERNEL_LZO
1850        select HAVE_KERNEL_XZ
1851
1852config SYS_SUPPORTS_ZBOOT_UART16550
1853        bool
1854        select SYS_SUPPORTS_ZBOOT
1855
1856config SYS_SUPPORTS_ZBOOT_UART_PROM
1857        bool
1858        select SYS_SUPPORTS_ZBOOT
1859
1860config CPU_LOONGSON2
1861        bool
1862        select CPU_SUPPORTS_32BIT_KERNEL
1863        select CPU_SUPPORTS_64BIT_KERNEL
1864        select CPU_SUPPORTS_HIGHMEM
1865        select CPU_SUPPORTS_HUGEPAGES
1866        select ARCH_HAS_PHYS_TO_DMA
1867        select CPU_HAS_LOAD_STORE_LR
1868
1869config CPU_LOONGSON1
1870        bool
1871        select CPU_MIPS32
1872        select CPU_MIPSR2
1873        select CPU_HAS_PREFETCH
1874        select CPU_HAS_LOAD_STORE_LR
1875        select CPU_SUPPORTS_32BIT_KERNEL
1876        select CPU_SUPPORTS_HIGHMEM
1877        select CPU_SUPPORTS_CPUFREQ
1878
1879config CPU_BMIPS32_3300
1880        select SMP_UP if SMP
1881        bool
1882
1883config CPU_BMIPS4350
1884        bool
1885        select SYS_SUPPORTS_SMP
1886        select SYS_SUPPORTS_HOTPLUG_CPU
1887
1888config CPU_BMIPS4380
1889        bool
1890        select MIPS_L1_CACHE_SHIFT_6
1891        select SYS_SUPPORTS_SMP
1892        select SYS_SUPPORTS_HOTPLUG_CPU
1893        select CPU_HAS_RIXI
1894
1895config CPU_BMIPS5000
1896        bool
1897        select MIPS_CPU_SCACHE
1898        select MIPS_L1_CACHE_SHIFT_7
1899        select SYS_SUPPORTS_SMP
1900        select SYS_SUPPORTS_HOTPLUG_CPU
1901        select CPU_HAS_RIXI
1902
1903config SYS_HAS_CPU_LOONGSON3
1904        bool
1905        select CPU_SUPPORTS_CPUFREQ
1906        select CPU_HAS_RIXI
1907
1908config SYS_HAS_CPU_LOONGSON2E
1909        bool
1910
1911config SYS_HAS_CPU_LOONGSON2F
1912        bool
1913        select CPU_SUPPORTS_CPUFREQ
1914        select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1915        select CPU_SUPPORTS_UNCACHED_ACCELERATED
1916
1917config SYS_HAS_CPU_LOONGSON1B
1918        bool
1919
1920config SYS_HAS_CPU_LOONGSON1C
1921        bool
1922
1923config SYS_HAS_CPU_MIPS32_R1
1924        bool
1925
1926config SYS_HAS_CPU_MIPS32_R2
1927        bool
1928
1929config SYS_HAS_CPU_MIPS32_R3_5
1930        bool
1931
1932config SYS_HAS_CPU_MIPS32_R5
1933        bool
1934        select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1935
1936config SYS_HAS_CPU_MIPS32_R6
1937        bool
1938        select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1939
1940config SYS_HAS_CPU_MIPS64_R1
1941        bool
1942
1943config SYS_HAS_CPU_MIPS64_R2
1944        bool
1945
1946config SYS_HAS_CPU_MIPS64_R6
1947        bool
1948        select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1949
1950config SYS_HAS_CPU_R3000
1951        bool
1952
1953config SYS_HAS_CPU_TX39XX
1954        bool
1955
1956config SYS_HAS_CPU_VR41XX
1957        bool
1958
1959config SYS_HAS_CPU_R4X00
1960        bool
1961
1962config SYS_HAS_CPU_TX49XX
1963        bool
1964
1965config SYS_HAS_CPU_R5000
1966        bool
1967
1968config SYS_HAS_CPU_R5500
1969        bool
1970
1971config SYS_HAS_CPU_NEVADA
1972        bool
1973
1974config SYS_HAS_CPU_R10000
1975        bool
1976        select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1977
1978config SYS_HAS_CPU_RM7000
1979        bool
1980
1981config SYS_HAS_CPU_SB1
1982        bool
1983
1984config SYS_HAS_CPU_CAVIUM_OCTEON
1985        bool
1986
1987config SYS_HAS_CPU_BMIPS
1988        bool
1989
1990config SYS_HAS_CPU_BMIPS32_3300
1991        bool
1992        select SYS_HAS_CPU_BMIPS
1993
1994config SYS_HAS_CPU_BMIPS4350
1995        bool
1996        select SYS_HAS_CPU_BMIPS
1997
1998config SYS_HAS_CPU_BMIPS4380
1999        bool
2000        select SYS_HAS_CPU_BMIPS
2001
2002config SYS_HAS_CPU_BMIPS5000
2003        bool
2004        select SYS_HAS_CPU_BMIPS
2005        select ARCH_HAS_SYNC_DMA_FOR_CPU
2006
2007config SYS_HAS_CPU_XLR
2008        bool
2009
2010config SYS_HAS_CPU_XLP
2011        bool
2012
2013#
2014# CPU may reorder R->R, R->W, W->R, W->W
2015# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2016#
2017config WEAK_ORDERING
2018        bool
2019
2020#
2021# CPU may reorder reads and writes beyond LL/SC
2022# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2023#
2024config WEAK_REORDERING_BEYOND_LLSC
2025        bool
2026endmenu
2027
2028#
2029# These two indicate any level of the MIPS32 and MIPS64 architecture
2030#
2031config CPU_MIPS32
2032        bool
2033        default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2034
2035config CPU_MIPS64
2036        bool
2037        default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2038
2039#
2040# These indicate the revision of the architecture
2041#
2042config CPU_MIPSR1
2043        bool
2044        default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2045
2046config CPU_MIPSR2
2047        bool
2048        default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2049        select CPU_HAS_RIXI
2050        select MIPS_SPRAM
2051
2052config CPU_MIPSR6
2053        bool
2054        default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2055        select CPU_HAS_RIXI
2056        select HAVE_ARCH_BITREVERSE
2057        select MIPS_ASID_BITS_VARIABLE
2058        select MIPS_CRC_SUPPORT
2059        select MIPS_SPRAM
2060
2061config TARGET_ISA_REV
2062        int
2063        default 1 if CPU_MIPSR1
2064        default 2 if CPU_MIPSR2
2065        default 6 if CPU_MIPSR6
2066        default 0
2067        help
2068          Reflects the ISA revision being targeted by the kernel build. This
2069          is effectively the Kconfig equivalent of MIPS_ISA_REV.
2070
2071config EVA
2072        bool
2073
2074config XPA
2075        bool
2076
2077config SYS_SUPPORTS_32BIT_KERNEL
2078        bool
2079config SYS_SUPPORTS_64BIT_KERNEL
2080        bool
2081config CPU_SUPPORTS_32BIT_KERNEL
2082        bool
2083config CPU_SUPPORTS_64BIT_KERNEL
2084        bool
2085config CPU_SUPPORTS_CPUFREQ
2086        bool
2087config CPU_SUPPORTS_ADDRWINCFG
2088        bool
2089config CPU_SUPPORTS_HUGEPAGES
2090        bool
2091        depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2092config CPU_SUPPORTS_UNCACHED_ACCELERATED
2093        bool
2094config MIPS_PGD_C0_CONTEXT
2095        bool
2096        default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097
2098#
2099# Set to y for ptrace access to watch registers.
2100#
2101config HARDWARE_WATCHPOINTS
2102        bool
2103        default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104
2105menu "Kernel type"
2106
2107choice
2108        prompt "Kernel code model"
2109        help
2110          You should only select this option if you have a workload that
2111          actually benefits from 64-bit processing or if your machine has
2112          large memory.  You will only be presented a single option in this
2113          menu if your system does not support both 32-bit and 64-bit kernels.
2114
2115config 32BIT
2116        bool "32-bit kernel"
2117        depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2118        select TRAD_SIGNALS
2119        help
2120          Select this option if you want to build a 32-bit kernel.
2121
2122config 64BIT
2123        bool "64-bit kernel"
2124        depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2125        help
2126          Select this option if you want to build a 64-bit kernel.
2127
2128endchoice
2129
2130config KVM_GUEST
2131        bool "KVM Guest Kernel"
2132        depends on BROKEN_ON_SMP
2133        help
2134          Select this option if building a guest kernel for KVM (Trap & Emulate)
2135          mode.
2136
2137config KVM_GUEST_TIMER_FREQ
2138        int "Count/Compare Timer Frequency (MHz)"
2139        depends on KVM_GUEST
2140        default 100
2141        help
2142          Set this to non-zero if building a guest kernel for KVM to skip RTC
2143          emulation when determining guest CPU Frequency. Instead, the guest's
2144          timer frequency is specified directly.
2145
2146config MIPS_VA_BITS_48
2147        bool "48 bits virtual memory"
2148        depends on 64BIT
2149        help
2150          Support a maximum at least 48 bits of application virtual
2151          memory.  Default is 40 bits or less, depending on the CPU.
2152          For page sizes 16k and above, this option results in a small
2153          memory overhead for page tables.  For 4k page size, a fourth
2154          level of page tables is added which imposes both a memory
2155          overhead as well as slower TLB fault handling.
2156
2157          If unsure, say N.
2158
2159choice
2160        prompt "Kernel page size"
2161        default PAGE_SIZE_4KB
2162
2163config PAGE_SIZE_4KB
2164        bool "4kB"
2165        depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
2166        help
2167          This option select the standard 4kB Linux page size.  On some
2168          R3000-family processors this is the only available page size.  Using
2169          4kB page size will minimize memory consumption and is therefore
2170          recommended for low memory systems.
2171
2172config PAGE_SIZE_8KB
2173        bool "8kB"
2174        depends on CPU_CAVIUM_OCTEON
2175        depends on !MIPS_VA_BITS_48
2176        help
2177          Using 8kB page size will result in higher performance kernel at
2178          the price of higher memory consumption.  This option is available
2179          only on cnMIPS processors.  Note that you will need a suitable Linux
2180          distribution to support this.
2181
2182config PAGE_SIZE_16KB
2183        bool "16kB"
2184        depends on !CPU_R3000 && !CPU_TX39XX
2185        help
2186          Using 16kB page size will result in higher performance kernel at
2187          the price of higher memory consumption.  This option is available on
2188          all non-R3000 family processors.  Note that you will need a suitable
2189          Linux distribution to support this.
2190
2191config PAGE_SIZE_32KB
2192        bool "32kB"
2193        depends on CPU_CAVIUM_OCTEON
2194        depends on !MIPS_VA_BITS_48
2195        help
2196          Using 32kB page size will result in higher performance kernel at
2197          the price of higher memory consumption.  This option is available
2198          only on cnMIPS cores.  Note that you will need a suitable Linux
2199          distribution to support this.
2200
2201config PAGE_SIZE_64KB
2202        bool "64kB"
2203        depends on !CPU_R3000 && !CPU_TX39XX
2204        help
2205          Using 64kB page size will result in higher performance kernel at
2206          the price of higher memory consumption.  This option is available on
2207          all non-R3000 family processor.  Not that at the time of this
2208          writing this option is still high experimental.
2209
2210endchoice
2211
2212config FORCE_MAX_ZONEORDER
2213        int "Maximum zone order"
2214        range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2215        default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2216        range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2217        default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2218        range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2219        default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2220        range 11 64
2221        default "11"
2222        help
2223          The kernel memory allocator divides physically contiguous memory
2224          blocks into "zones", where each zone is a power of two number of
2225          pages.  This option selects the largest power of two that the kernel
2226          keeps in the memory allocator.  If you need to allocate very large
2227          blocks of physically contiguous memory, then you may need to
2228          increase this value.
2229
2230          This config option is actually maximum order plus one. For example,
2231          a value of 11 means that the largest free memory block is 2^10 pages.
2232
2233          The page size is not necessarily 4KB.  Keep this in mind
2234          when choosing a value for this option.
2235
2236config BOARD_SCACHE
2237        bool
2238
2239config IP22_CPU_SCACHE
2240        bool
2241        select BOARD_SCACHE
2242
2243#
2244# Support for a MIPS32 / MIPS64 style S-caches
2245#
2246config MIPS_CPU_SCACHE
2247        bool
2248        select BOARD_SCACHE
2249
2250config R5000_CPU_SCACHE
2251        bool
2252        select BOARD_SCACHE
2253
2254config RM7000_CPU_SCACHE
2255        bool
2256        select BOARD_SCACHE
2257
2258config SIBYTE_DMA_PAGEOPS
2259        bool "Use DMA to clear/copy pages"
2260        depends on CPU_SB1
2261        help
2262          Instead of using the CPU to zero and copy pages, use a Data Mover
2263          channel.  These DMA channels are otherwise unused by the standard
2264          SiByte Linux port.  Seems to give a small performance benefit.
2265
2266config CPU_HAS_PREFETCH
2267        bool
2268
2269config CPU_GENERIC_DUMP_TLB
2270        bool
2271        default y if !(CPU_R3000 || CPU_TX39XX)
2272
2273config MIPS_FP_SUPPORT
2274        bool "Floating Point support" if EXPERT
2275        default y
2276        help
2277          Select y to include support for floating point in the kernel
2278          including initialization of FPU hardware, FP context save & restore
2279          and emulation of an FPU where necessary. Without this support any
2280          userland program attempting to use floating point instructions will
2281          receive a SIGILL.
2282
2283          If you know that your userland will not attempt to use floating point
2284          instructions then you can say n here to shrink the kernel a little.
2285
2286          If unsure, say y.
2287
2288config CPU_R2300_FPU
2289        bool
2290        depends on MIPS_FP_SUPPORT
2291        default y if CPU_R3000 || CPU_TX39XX
2292
2293config CPU_R3K_TLB
2294        bool
2295
2296config CPU_R4K_FPU
2297        bool
2298        depends on MIPS_FP_SUPPORT
2299        default y if !CPU_R2300_FPU
2300
2301config CPU_R4K_CACHE_TLB
2302        bool
2303        default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2304
2305config MIPS_MT_SMP
2306        bool "MIPS MT SMP support (1 TC on each available VPE)"
2307        default y
2308        depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2309        select CPU_MIPSR2_IRQ_VI
2310        select CPU_MIPSR2_IRQ_EI
2311        select SYNC_R4K
2312        select MIPS_MT
2313        select SMP
2314        select SMP_UP
2315        select SYS_SUPPORTS_SMP
2316        select SYS_SUPPORTS_SCHED_SMT
2317        select MIPS_PERF_SHARED_TC_COUNTERS
2318        help
2319          This is a kernel model which is known as SMVP. This is supported
2320          on cores with the MT ASE and uses the available VPEs to implement
2321          virtual processors which supports SMP. This is equivalent to the
2322          Intel Hyperthreading feature. For further information go to
2323          <http://www.imgtec.com/mips/mips-multithreading.asp>.
2324
2325config MIPS_MT
2326        bool
2327
2328config SCHED_SMT
2329        bool "SMT (multithreading) scheduler support"
2330        depends on SYS_SUPPORTS_SCHED_SMT
2331        default n
2332        help
2333          SMT scheduler support improves the CPU scheduler's decision making
2334          when dealing with MIPS MT enabled cores at a cost of slightly
2335          increased overhead in some places. If unsure say N here.
2336
2337config SYS_SUPPORTS_SCHED_SMT
2338        bool
2339
2340config SYS_SUPPORTS_MULTITHREADING
2341        bool
2342
2343config MIPS_MT_FPAFF
2344        bool "Dynamic FPU affinity for FP-intensive threads"
2345        default y
2346        depends on MIPS_MT_SMP
2347
2348config MIPSR2_TO_R6_EMULATOR
2349        bool "MIPS R2-to-R6 emulator"
2350        depends on CPU_MIPSR6
2351        depends on MIPS_FP_SUPPORT
2352        default y
2353        help
2354          Choose this option if you want to run non-R6 MIPS userland code.
2355          Even if you say 'Y' here, the emulator will still be disabled by
2356          default. You can enable it using the 'mipsr2emu' kernel option.
2357          The only reason this is a build-time option is to save ~14K from the
2358          final kernel image.
2359
2360config SYS_SUPPORTS_VPE_LOADER
2361        bool
2362        depends on SYS_SUPPORTS_MULTITHREADING
2363        help
2364          Indicates that the platform supports the VPE loader, and provides
2365          physical_memsize.
2366
2367config MIPS_VPE_LOADER
2368        bool "VPE loader support."
2369        depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2370        select CPU_MIPSR2_IRQ_VI
2371        select CPU_MIPSR2_IRQ_EI
2372        select MIPS_MT
2373        help
2374          Includes a loader for loading an elf relocatable object
2375          onto another VPE and running it.
2376
2377config MIPS_VPE_LOADER_CMP
2378        bool
2379        default "y"
2380        depends on MIPS_VPE_LOADER && MIPS_CMP
2381
2382config MIPS_VPE_LOADER_MT
2383        bool
2384        default "y"
2385        depends on MIPS_VPE_LOADER && !MIPS_CMP
2386
2387config MIPS_VPE_LOADER_TOM
2388        bool "Load VPE program into memory hidden from linux"
2389        depends on MIPS_VPE_LOADER
2390        default y
2391        help
2392          The loader can use memory that is present but has been hidden from
2393          Linux using the kernel command line option "mem=xxMB". It's up to
2394          you to ensure the amount you put in the option and the space your
2395          program requires is less or equal to the amount physically present.
2396
2397config MIPS_VPE_APSP_API
2398        bool "Enable support for AP/SP API (RTLX)"
2399        depends on MIPS_VPE_LOADER
2400
2401config MIPS_VPE_APSP_API_CMP
2402        bool
2403        default "y"
2404        depends on MIPS_VPE_APSP_API && MIPS_CMP
2405
2406config MIPS_VPE_APSP_API_MT
2407        bool
2408        default "y"
2409        depends on MIPS_VPE_APSP_API && !MIPS_CMP
2410
2411config MIPS_CMP
2412        bool "MIPS CMP framework support (DEPRECATED)"
2413        depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2414        select SMP
2415        select SYNC_R4K
2416        select SYS_SUPPORTS_SMP
2417        select WEAK_ORDERING
2418        default n
2419        help
2420          Select this if you are using a bootloader which implements the "CMP
2421          framework" protocol (ie. YAMON) and want your kernel to make use of
2422          its ability to start secondary CPUs.
2423
2424          Unless you have a specific need, you should use CONFIG_MIPS_CPS
2425          instead of this.
2426
2427config MIPS_CPS
2428        bool "MIPS Coherent Processing System support"
2429        depends on SYS_SUPPORTS_MIPS_CPS
2430        select MIPS_CM
2431        select MIPS_CPS_PM if HOTPLUG_CPU
2432        select SMP
2433        select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2434        select SYS_SUPPORTS_HOTPLUG_CPU
2435        select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2436        select SYS_SUPPORTS_SMP
2437        select WEAK_ORDERING
2438        help
2439          Select this if you wish to run an SMP kernel across multiple cores
2440          within a MIPS Coherent Processing System. When this option is
2441          enabled the kernel will probe for other cores and boot them with
2442          no external assistance. It is safe to enable this when hardware
2443          support is unavailable.
2444
2445config MIPS_CPS_PM
2446        depends on MIPS_CPS
2447        bool
2448
2449config MIPS_CM
2450        bool
2451        select MIPS_CPC
2452
2453config MIPS_CPC
2454        bool
2455
2456config SB1_PASS_2_WORKAROUNDS
2457        bool
2458        depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2459        default y
2460
2461config SB1_PASS_2_1_WORKAROUNDS
2462        bool
2463        depends on CPU_SB1 && CPU_SB1_PASS_2
2464        default y
2465
2466choice
2467        prompt "SmartMIPS or microMIPS ASE support"
2468
2469config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2470        bool "None"
2471        help
2472          Select this if you want neither microMIPS nor SmartMIPS support
2473
2474config CPU_HAS_SMARTMIPS
2475        depends on SYS_SUPPORTS_SMARTMIPS
2476        bool "SmartMIPS"
2477        help
2478          SmartMIPS is a extension of the MIPS32 architecture aimed at
2479          increased security at both hardware and software level for
2480          smartcards.  Enabling this option will allow proper use of the
2481          SmartMIPS instructions by Linux applications.  However a kernel with
2482          this option will not work on a MIPS core without SmartMIPS core.  If
2483          you don't know you probably don't have SmartMIPS and should say N
2484          here.
2485
2486config CPU_MICROMIPS
2487        depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2488        bool "microMIPS"
2489        help
2490          When this option is enabled the kernel will be built using the
2491          microMIPS ISA
2492
2493endchoice
2494
2495config CPU_HAS_MSA
2496        bool "Support for the MIPS SIMD Architecture"
2497        depends on CPU_SUPPORTS_MSA
2498        depends on MIPS_FP_SUPPORT
2499        depends on 64BIT || MIPS_O32_FP64_SUPPORT
2500        help
2501          MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2502          and a set of SIMD instructions to operate on them. When this option
2503          is enabled the kernel will support allocating & switching MSA
2504          vector register contexts. If you know that your kernel will only be
2505          running on CPUs which do not support MSA or that your userland will
2506          not be making use of it then you may wish to say N here to reduce
2507          the size & complexity of your kernel.
2508
2509          If unsure, say Y.
2510
2511config CPU_HAS_WB
2512        bool
2513
2514config XKS01
2515        bool
2516
2517config CPU_HAS_RIXI
2518        bool
2519
2520config CPU_HAS_LOAD_STORE_LR
2521        bool
2522        help
2523          CPU has support for unaligned load and store instructions:
2524          LWL, LWR, SWL, SWR (Load/store word left/right).
2525          LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).
2526
2527#
2528# Vectored interrupt mode is an R2 feature
2529#
2530config CPU_MIPSR2_IRQ_VI
2531        bool
2532
2533#
2534# Extended interrupt mode is an R2 feature
2535#
2536config CPU_MIPSR2_IRQ_EI
2537        bool
2538
2539config CPU_HAS_SYNC
2540        bool
2541        depends on !CPU_R3000
2542        default y
2543
2544#
2545# CPU non-features
2546#
2547config CPU_DADDI_WORKAROUNDS
2548        bool
2549
2550config CPU_R4000_WORKAROUNDS
2551        bool
2552        select CPU_R4400_WORKAROUNDS
2553
2554config CPU_R4400_WORKAROUNDS
2555        bool
2556
2557config MIPS_ASID_SHIFT
2558        int
2559        default 6 if CPU_R3000 || CPU_TX39XX
2560        default 0
2561
2562config MIPS_ASID_BITS
2563        int
2564        default 0 if MIPS_ASID_BITS_VARIABLE
2565        default 6 if CPU_R3000 || CPU_TX39XX
2566        default 8
2567
2568config MIPS_ASID_BITS_VARIABLE
2569        bool
2570
2571config MIPS_CRC_SUPPORT
2572        bool
2573
2574#
2575# - Highmem only makes sense for the 32-bit kernel.
2576# - The current highmem code will only work properly on physically indexed
2577#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2578#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2579#   moment we protect the user and offer the highmem option only on machines
2580#   where it's known to be safe.  This will not offer highmem on a few systems
2581#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2582#   indexed CPUs but we're playing safe.
2583# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2584#   know they might have memory configurations that could make use of highmem
2585#   support.
2586#
2587config HIGHMEM
2588        bool "High Memory Support"
2589        depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2590
2591config CPU_SUPPORTS_HIGHMEM
2592        bool
2593
2594config SYS_SUPPORTS_HIGHMEM
2595        bool
2596
2597config SYS_SUPPORTS_SMARTMIPS
2598        bool
2599
2600config SYS_SUPPORTS_MICROMIPS
2601        bool
2602
2603config SYS_SUPPORTS_MIPS16
2604        bool
2605        help
2606          This option must be set if a kernel might be executed on a MIPS16-
2607          enabled CPU even if MIPS16 is not actually being used.  In other
2608          words, it makes the kernel MIPS16-tolerant.
2609
2610config CPU_SUPPORTS_MSA
2611        bool
2612
2613config ARCH_FLATMEM_ENABLE
2614        def_bool y
2615        depends on !NUMA && !CPU_LOONGSON2
2616
2617config ARCH_DISCONTIGMEM_ENABLE
2618        bool
2619        default y if SGI_IP27
2620        help
2621          Say Y to support efficient handling of discontiguous physical memory,
2622          for architectures which are either NUMA (Non-Uniform Memory Access)
2623          or have huge holes in the physical address space for other reasons.
2624          See <file:Documentation/vm/numa.rst> for more.
2625
2626config ARCH_SPARSEMEM_ENABLE
2627        bool
2628        select SPARSEMEM_STATIC
2629
2630config NUMA
2631        bool "NUMA Support"
2632        depends on SYS_SUPPORTS_NUMA
2633        help
2634          Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2635          Access).  This option improves performance on systems with more
2636          than two nodes; on two node systems it is generally better to
2637          leave it disabled; on single node systems disable this option
2638          disabled.
2639
2640config SYS_SUPPORTS_NUMA
2641        bool
2642
2643config RELOCATABLE
2644        bool "Relocatable kernel"
2645        depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2646        help
2647          This builds a kernel image that retains relocation information
2648          so it can be loaded someplace besides the default 1MB.
2649          The relocations make the kernel binary about 15% larger,
2650          but are discarded at runtime
2651
2652config RELOCATION_TABLE_SIZE
2653        hex "Relocation table size"
2654        depends on RELOCATABLE
2655        range 0x0 0x01000000
2656        default "0x00100000"
2657        ---help---
2658          A table of relocation data will be appended to the kernel binary
2659          and parsed at boot to fix up the relocated kernel.
2660
2661          This option allows the amount of space reserved for the table to be
2662          adjusted, although the default of 1Mb should be ok in most cases.
2663
2664          The build will fail and a valid size suggested if this is too small.
2665
2666          If unsure, leave at the default value.
2667
2668config RANDOMIZE_BASE
2669        bool "Randomize the address of the kernel image"
2670        depends on RELOCATABLE
2671        ---help---
2672          Randomizes the physical and virtual address at which the
2673          kernel image is loaded, as a security feature that
2674          deters exploit attempts relying on knowledge of the location
2675          of kernel internals.
2676
2677          Entropy is generated using any coprocessor 0 registers available.
2678
2679          The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2680
2681          If unsure, say N.
2682
2683config RANDOMIZE_BASE_MAX_OFFSET
2684        hex "Maximum kASLR offset" if EXPERT
2685        depends on RANDOMIZE_BASE
2686        range 0x0 0x40000000 if EVA || 64BIT
2687        range 0x0 0x08000000
2688        default "0x01000000"
2689        ---help---
2690          When kASLR is active, this provides the maximum offset that will
2691          be applied to the kernel image. It should be set according to the
2692          amount of physical RAM available in the target system minus
2693          PHYSICAL_START and must be a power of 2.
2694
2695          This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2696          EVA or 64-bit. The default is 16Mb.
2697
2698config NODES_SHIFT
2699        int
2700        default "6"
2701        depends on NEED_MULTIPLE_NODES
2702
2703config HW_PERF_EVENTS
2704        bool "Enable hardware performance counter support for perf events"
2705        depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2706        default y
2707        help
2708          Enable hardware performance counter support for perf events. If
2709          disabled, perf events will use software events only.
2710
2711config SMP
2712        bool "Multi-Processing support"
2713        depends on SYS_SUPPORTS_SMP
2714        help
2715          This enables support for systems with more than one CPU. If you have
2716          a system with only one CPU, say N. If you have a system with more
2717          than one CPU, say Y.
2718
2719          If you say N here, the kernel will run on uni- and multiprocessor
2720          machines, but will use only one CPU of a multiprocessor machine. If
2721          you say Y here, the kernel will run on many, but not all,
2722          uniprocessor machines. On a uniprocessor machine, the kernel
2723          will run faster if you say N here.
2724
2725          People using multiprocessor machines who say Y here should also say
2726          Y to "Enhanced Real Time Clock Support", below.
2727
2728          See also the SMP-HOWTO available at
2729          <http://www.tldp.org/docs.html#howto>.
2730
2731          If you don't know what to do here, say N.
2732
2733config HOTPLUG_CPU
2734        bool "Support for hot-pluggable CPUs"
2735        depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2736        help
2737          Say Y here to allow turning CPUs off and on. CPUs can be
2738          controlled through /sys/devices/system/cpu.
2739          (Note: power management support will enable this option
2740            automatically on SMP systems. )
2741          Say N if you want to disable CPU hotplug.
2742
2743config SMP_UP
2744        bool
2745
2746config SYS_SUPPORTS_MIPS_CMP
2747        bool
2748
2749config SYS_SUPPORTS_MIPS_CPS
2750        bool
2751
2752config SYS_SUPPORTS_SMP
2753        bool
2754
2755config NR_CPUS_DEFAULT_4
2756        bool
2757
2758config NR_CPUS_DEFAULT_8
2759        bool
2760
2761config NR_CPUS_DEFAULT_16
2762        bool
2763
2764config NR_CPUS_DEFAULT_32
2765        bool
2766
2767config NR_CPUS_DEFAULT_64
2768        bool
2769
2770config NR_CPUS
2771        int "Maximum number of CPUs (2-256)"
2772        range 2 256
2773        depends on SMP
2774        default "4" if NR_CPUS_DEFAULT_4
2775        default "8" if NR_CPUS_DEFAULT_8
2776        default "16" if NR_CPUS_DEFAULT_16
2777        default "32" if NR_CPUS_DEFAULT_32
2778        default "64" if NR_CPUS_DEFAULT_64
2779        help
2780          This allows you to specify the maximum number of CPUs which this
2781          kernel will support.  The maximum supported value is 32 for 32-bit
2782          kernel and 64 for 64-bit kernels; the minimum value which makes
2783          sense is 1 for Qemu (useful only for kernel debugging purposes)
2784          and 2 for all others.
2785
2786          This is purely to save memory - each supported CPU adds
2787          approximately eight kilobytes to the kernel image.  For best
2788          performance should round up your number of processors to the next
2789          power of two.
2790
2791config MIPS_PERF_SHARED_TC_COUNTERS
2792        bool
2793
2794config MIPS_NR_CPU_NR_MAP_1024
2795        bool
2796
2797config MIPS_NR_CPU_NR_MAP
2798        int
2799        depends on SMP
2800        default 1024 if MIPS_NR_CPU_NR_MAP_1024
2801        default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2802
2803#
2804# Timer Interrupt Frequency Configuration
2805#
2806
2807choice
2808        prompt "Timer frequency"
2809        default HZ_250
2810        help
2811          Allows the configuration of the timer frequency.
2812
2813        config HZ_24
2814                bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2815
2816        config HZ_48
2817                bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2818
2819        config HZ_100
2820                bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2821
2822        config HZ_128
2823                bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2824
2825        config HZ_250
2826                bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828        config HZ_256
2829                bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831        config HZ_1000
2832                bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834        config HZ_1024
2835                bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2836
2837endchoice
2838
2839config SYS_SUPPORTS_24HZ
2840        bool
2841
2842config SYS_SUPPORTS_48HZ
2843        bool
2844
2845config SYS_SUPPORTS_100HZ
2846        bool
2847
2848config SYS_SUPPORTS_128HZ
2849        bool
2850
2851config SYS_SUPPORTS_250HZ
2852        bool
2853
2854config SYS_SUPPORTS_256HZ
2855        bool
2856
2857config SYS_SUPPORTS_1000HZ
2858        bool
2859
2860config SYS_SUPPORTS_1024HZ
2861        bool
2862
2863config SYS_SUPPORTS_ARBIT_HZ
2864        bool
2865        default y if !SYS_SUPPORTS_24HZ && \
2866                     !SYS_SUPPORTS_48HZ && \
2867                     !SYS_SUPPORTS_100HZ && \
2868                     !SYS_SUPPORTS_128HZ && \
2869                     !SYS_SUPPORTS_250HZ && \
2870                     !SYS_SUPPORTS_256HZ && \
2871                     !SYS_SUPPORTS_1000HZ && \
2872                     !SYS_SUPPORTS_1024HZ
2873
2874config HZ
2875        int
2876        default 24 if HZ_24
2877        default 48 if HZ_48
2878        default 100 if HZ_100
2879        default 128 if HZ_128
2880        default 250 if HZ_250
2881        default 256 if HZ_256
2882        default 1000 if HZ_1000
2883        default 1024 if HZ_1024
2884
2885config SCHED_HRTICK
2886        def_bool HIGH_RES_TIMERS
2887
2888config KEXEC
2889        bool "Kexec system call"
2890        select KEXEC_CORE
2891        help
2892          kexec is a system call that implements the ability to shutdown your
2893          current kernel, and to start another kernel.  It is like a reboot
2894          but it is independent of the system firmware.   And like a reboot
2895          you can start any kernel with it, not just Linux.
2896
2897          The name comes from the similarity to the exec system call.
2898
2899          It is an ongoing process to be certain the hardware in a machine
2900          is properly shutdown, so do not be surprised if this code does not
2901          initially work for you.  As of this writing the exact hardware
2902          interface is strongly in flux, so no good recommendation can be
2903          made.
2904
2905config CRASH_DUMP
2906        bool "Kernel crash dumps"
2907        help
2908          Generate crash dump after being started by kexec.
2909          This should be normally only set in special crash dump kernels
2910          which are loaded in the main kernel with kexec-tools into
2911          a specially reserved region and then later executed after
2912          a crash by kdump/kexec. The crash dump kernel must be compiled
2913          to a memory address not used by the main kernel or firmware using
2914          PHYSICAL_START.
2915
2916config PHYSICAL_START
2917        hex "Physical address where the kernel is loaded"
2918        default "0xffffffff84000000"
2919        depends on CRASH_DUMP
2920        help
2921          This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2922          If you plan to use kernel for capturing the crash dump change
2923          this value to start of the reserved region (the "X" value as
2924          specified in the "crashkernel=YM@XM" command line boot parameter
2925          passed to the panic-ed kernel).
2926
2927config SECCOMP
2928        bool "Enable seccomp to safely compute untrusted bytecode"
2929        depends on PROC_FS
2930        default y
2931        help
2932          This kernel feature is useful for number crunching applications
2933          that may need to compute untrusted bytecode during their
2934          execution. By using pipes or other transports made available to
2935          the process as file descriptors supporting the read/write
2936          syscalls, it's possible to isolate those applications in
2937          their own address space using seccomp. Once seccomp is
2938          enabled via /proc/<pid>/seccomp, it cannot be disabled
2939          and the task is only allowed to execute a few safe syscalls
2940          defined by each seccomp mode.
2941
2942          If unsure, say Y. Only embedded should say N here.
2943
2944config MIPS_O32_FP64_SUPPORT
2945        bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2946        depends on 32BIT || MIPS32_O32
2947        help
2948          When this is enabled, the kernel will support use of 64-bit floating
2949          point registers with binaries using the O32 ABI along with the
2950          EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2951          32-bit MIPS systems this support is at the cost of increasing the
2952          size and complexity of the compiled FPU emulator. Thus if you are
2953          running a MIPS32 system and know that none of your userland binaries
2954          will require 64-bit floating point, you may wish to reduce the size
2955          of your kernel & potentially improve FP emulation performance by
2956          saying N here.
2957
2958          Although binutils currently supports use of this flag the details
2959          concerning its effect upon the O32 ABI in userland are still being
2960          worked on. In order to avoid userland becoming dependant upon current
2961          behaviour before the details have been finalised, this option should
2962          be considered experimental and only enabled by those working upon
2963          said details.
2964
2965          If unsure, say N.
2966
2967config USE_OF
2968        bool
2969        select OF
2970        select OF_EARLY_FLATTREE
2971        select IRQ_DOMAIN
2972
2973config UHI_BOOT
2974        bool
2975
2976config BUILTIN_DTB
2977        bool
2978
2979choice
2980        prompt "Kernel appended dtb support" if USE_OF
2981        default MIPS_NO_APPENDED_DTB
2982
2983        config MIPS_NO_APPENDED_DTB
2984                bool "None"
2985                help
2986                  Do not enable appended dtb support.
2987
2988        config MIPS_ELF_APPENDED_DTB
2989                bool "vmlinux"
2990                help
2991                  With this option, the boot code will look for a device tree binary
2992                  DTB) included in the vmlinux ELF section .appended_dtb. By default
2993                  it is empty and the DTB can be appended using binutils command
2994                  objcopy:
2995
2996                    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2997
2998                  This is meant as a backward compatiblity convenience for those
2999                  systems with a bootloader that can't be upgraded to accommodate
3000                  the documented boot protocol using a device tree.
3001
3002        config MIPS_RAW_APPENDED_DTB
3003                bool "vmlinux.bin or vmlinuz.bin"
3004                help
3005                  With this option, the boot code will look for a device tree binary
3006                  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3007                  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3008
3009                  This is meant as a backward compatibility convenience for those
3010                  systems with a bootloader that can't be upgraded to accommodate
3011                  the documented boot protocol using a device tree.
3012
3013                  Beware that there is very little in terms of protection against
3014                  this option being confused by leftover garbage in memory that might
3015                  look like a DTB header after a reboot if no actual DTB is appended
3016                  to vmlinux.bin.  Do not leave this option active in a production kernel
3017                  if you don't intend to always append a DTB.
3018endchoice
3019
3020choice
3021        prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3022        default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3023                                         !MIPS_MALTA && \
3024                                         !CAVIUM_OCTEON_SOC
3025        default MIPS_CMDLINE_FROM_BOOTLOADER
3026
3027        config MIPS_CMDLINE_FROM_DTB
3028                depends on USE_OF
3029                bool "Dtb kernel arguments if available"
3030
3031        config MIPS_CMDLINE_DTB_EXTEND
3032                depends on USE_OF
3033                bool "Extend dtb kernel arguments with bootloader arguments"
3034
3035        config MIPS_CMDLINE_FROM_BOOTLOADER
3036                bool "Bootloader kernel arguments if available"
3037
3038        config MIPS_CMDLINE_BUILTIN_EXTEND
3039                depends on CMDLINE_BOOL
3040                bool "Extend builtin kernel arguments with bootloader arguments"
3041endchoice
3042
3043endmenu
3044
3045config LOCKDEP_SUPPORT
3046        bool
3047        default y
3048
3049config STACKTRACE_SUPPORT
3050        bool
3051        default y
3052
3053config PGTABLE_LEVELS
3054        int
3055        default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3056        default 3 if 64BIT && !PAGE_SIZE_64KB
3057        default 2
3058
3059config MIPS_AUTO_PFN_OFFSET
3060        bool
3061
3062menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3063
3064config PCI_DRIVERS_GENERIC
3065        select PCI_DOMAINS_GENERIC if PCI
3066        bool
3067
3068config PCI_DRIVERS_LEGACY
3069        def_bool !PCI_DRIVERS_GENERIC
3070        select NO_GENERIC_PCI_IOPORT_MAP
3071        select PCI_DOMAINS if PCI
3072
3073#
3074# ISA support is now enabled via select.  Too many systems still have the one
3075# or other ISA chip on the board that users don't know about so don't expect
3076# users to choose the right thing ...
3077#
3078config ISA
3079        bool
3080
3081config TC
3082        bool "TURBOchannel support"
3083        depends on MACH_DECSTATION
3084        help
3085          TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3086          processors.  TURBOchannel programming specifications are available
3087          at:
3088          <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3089          and:
3090          <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3091          Linux driver support status is documented at:
3092          <http://www.linux-mips.org/wiki/DECstation>
3093
3094config MMU
3095        bool
3096        default y
3097
3098config ARCH_MMAP_RND_BITS_MIN
3099        default 12 if 64BIT
3100        default 8
3101
3102config ARCH_MMAP_RND_BITS_MAX
3103        default 18 if 64BIT
3104        default 15
3105
3106config ARCH_MMAP_RND_COMPAT_BITS_MIN
3107        default 8
3108
3109config ARCH_MMAP_RND_COMPAT_BITS_MAX
3110        default 15
3111
3112config I8253
3113        bool
3114        select CLKSRC_I8253
3115        select CLKEVT_I8253
3116        select MIPS_EXTERNAL_TIMER
3117
3118config ZONE_DMA
3119        bool
3120
3121config ZONE_DMA32
3122        bool
3123
3124endmenu
3125
3126config TRAD_SIGNALS
3127        bool
3128
3129config MIPS32_COMPAT
3130        bool
3131
3132config COMPAT
3133        bool
3134
3135config SYSVIPC_COMPAT
3136        bool
3137
3138config MIPS32_O32
3139        bool "Kernel support for o32 binaries"
3140        depends on 64BIT
3141        select ARCH_WANT_OLD_COMPAT_IPC
3142        select COMPAT
3143        select MIPS32_COMPAT
3144        select SYSVIPC_COMPAT if SYSVIPC
3145        help
3146          Select this option if you want to run o32 binaries.  These are pure
3147          32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3148          existing binaries are in this format.
3149
3150          If unsure, say Y.
3151
3152config MIPS32_N32
3153        bool "Kernel support for n32 binaries"
3154        depends on 64BIT
3155        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3156        select COMPAT
3157        select MIPS32_COMPAT
3158        select SYSVIPC_COMPAT if SYSVIPC
3159        help
3160          Select this option if you want to run n32 binaries.  These are
3161          64-bit binaries using 32-bit quantities for addressing and certain
3162          data that would normally be 64-bit.  They are used in special
3163          cases.
3164
3165          If unsure, say N.
3166
3167config BINFMT_ELF32
3168        bool
3169        default y if MIPS32_O32 || MIPS32_N32
3170        select ELFCORE
3171
3172menu "Power management options"
3173
3174config ARCH_HIBERNATION_POSSIBLE
3175        def_bool y
3176        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3177
3178config ARCH_SUSPEND_POSSIBLE
3179        def_bool y
3180        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3181
3182source "kernel/power/Kconfig"
3183
3184endmenu
3185
3186config MIPS_EXTERNAL_TIMER
3187        bool
3188
3189menu "CPU Power Management"
3190
3191if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3192source "drivers/cpufreq/Kconfig"
3193endif
3194
3195source "drivers/cpuidle/Kconfig"
3196
3197endmenu
3198
3199source "drivers/firmware/Kconfig"
3200
3201source "arch/mips/kvm/Kconfig"
3202