1config MIPS 2 bool 3 default y 4 select ARCH_SUPPORTS_UPROBES 5 select ARCH_MIGHT_HAVE_PC_PARPORT 6 select ARCH_MIGHT_HAVE_PC_SERIO 7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 8 select ARCH_USE_BUILTIN_BSWAP 9 select HAVE_CONTEXT_TRACKING 10 select HAVE_GENERIC_DMA_COHERENT 11 select HAVE_IDE 12 select HAVE_OPROFILE 13 select HAVE_PERF_EVENTS 14 select PERF_USE_VMALLOC 15 select HAVE_ARCH_KGDB 16 select HAVE_ARCH_SECCOMP_FILTER 17 select HAVE_ARCH_TRACEHOOK 18 select HAVE_CBPF_JIT if !CPU_MICROMIPS 19 select HAVE_FUNCTION_TRACER 20 select HAVE_DYNAMIC_FTRACE 21 select HAVE_FTRACE_MCOUNT_RECORD 22 select HAVE_C_RECORDMCOUNT 23 select HAVE_FUNCTION_GRAPH_TRACER 24 select HAVE_KPROBES 25 select HAVE_KRETPROBES 26 select HAVE_SYSCALL_TRACEPOINTS 27 select HAVE_DEBUG_KMEMLEAK 28 select HAVE_SYSCALL_TRACEPOINTS 29 select ARCH_HAS_ELF_RANDOMIZE 30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 31 select RTC_LIB if !MACH_LOONGSON64 32 select GENERIC_ATOMIC64 if !64BIT 33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 34 select HAVE_DMA_CONTIGUOUS 35 select HAVE_DMA_API_DEBUG 36 select GENERIC_IRQ_PROBE 37 select GENERIC_IRQ_SHOW 38 select GENERIC_PCI_IOMAP 39 select HAVE_ARCH_JUMP_LABEL 40 select ARCH_WANT_IPC_PARSE_VERSION 41 select IRQ_FORCED_THREADING 42 select HAVE_MEMBLOCK 43 select HAVE_MEMBLOCK_NODE_MAP 44 select ARCH_DISCARD_MEMBLOCK 45 select GENERIC_SMP_IDLE_THREAD 46 select BUILDTIME_EXTABLE_SORT 47 select GENERIC_CLOCKEVENTS 48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 49 select GENERIC_CMOS_UPDATE 50 select HAVE_MOD_ARCH_SPECIFIC 51 select HAVE_NMI 52 select VIRT_TO_BUS 53 select MODULES_USE_ELF_REL if MODULES 54 select MODULES_USE_ELF_RELA if MODULES && 64BIT 55 select CLONE_BACKWARDS 56 select HAVE_DEBUG_STACKOVERFLOW 57 select HAVE_CC_STACKPROTECTOR 58 select CPU_PM if CPU_IDLE 59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 60 select ARCH_BINFMT_ELF_STATE 61 select SYSCTL_EXCEPTION_TRACE 62 select HAVE_VIRT_CPU_ACCOUNTING_GEN 63 select HAVE_IRQ_TIME_ACCOUNTING 64 select GENERIC_TIME_VSYSCALL 65 select ARCH_CLOCKSOURCE_DATA 66 select HANDLE_DOMAIN_IRQ 67 68menu "Machine selection" 69 70choice 71 prompt "System type" 72 default SGI_IP22 73 74config MIPS_ALCHEMY 75 bool "Alchemy processor based machines" 76 select ARCH_PHYS_ADDR_T_64BIT 77 select CEVT_R4K 78 select CSRC_R4K 79 select IRQ_MIPS_CPU 80 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 81 select SYS_HAS_CPU_MIPS32_R1 82 select SYS_SUPPORTS_32BIT_KERNEL 83 select SYS_SUPPORTS_APM_EMULATION 84 select GPIOLIB 85 select SYS_SUPPORTS_ZBOOT 86 select COMMON_CLK 87 88config AR7 89 bool "Texas Instruments AR7" 90 select BOOT_ELF32 91 select DMA_NONCOHERENT 92 select CEVT_R4K 93 select CSRC_R4K 94 select IRQ_MIPS_CPU 95 select NO_EXCEPT_FILL 96 select SWAP_IO_SPACE 97 select SYS_HAS_CPU_MIPS32_R1 98 select SYS_HAS_EARLY_PRINTK 99 select SYS_SUPPORTS_32BIT_KERNEL 100 select SYS_SUPPORTS_LITTLE_ENDIAN 101 select SYS_SUPPORTS_MIPS16 102 select SYS_SUPPORTS_ZBOOT_UART16550 103 select GPIOLIB 104 select VLYNQ 105 select HAVE_CLK 106 help 107 Support for the Texas Instruments AR7 System-on-a-Chip 108 family: TNETD7100, 7200 and 7300. 109 110config ATH25 111 bool "Atheros AR231x/AR531x SoC support" 112 select CEVT_R4K 113 select CSRC_R4K 114 select DMA_NONCOHERENT 115 select IRQ_MIPS_CPU 116 select IRQ_DOMAIN 117 select SYS_HAS_CPU_MIPS32_R1 118 select SYS_SUPPORTS_BIG_ENDIAN 119 select SYS_SUPPORTS_32BIT_KERNEL 120 select SYS_HAS_EARLY_PRINTK 121 help 122 Support for Atheros AR231x and Atheros AR531x based boards 123 124config ATH79 125 bool "Atheros AR71XX/AR724X/AR913X based boards" 126 select ARCH_HAS_RESET_CONTROLLER 127 select BOOT_RAW 128 select CEVT_R4K 129 select CSRC_R4K 130 select DMA_NONCOHERENT 131 select GPIOLIB 132 select HAVE_CLK 133 select COMMON_CLK 134 select CLKDEV_LOOKUP 135 select IRQ_MIPS_CPU 136 select MIPS_MACHINE 137 select SYS_HAS_CPU_MIPS32_R2 138 select SYS_HAS_EARLY_PRINTK 139 select SYS_SUPPORTS_32BIT_KERNEL 140 select SYS_SUPPORTS_BIG_ENDIAN 141 select SYS_SUPPORTS_MIPS16 142 select SYS_SUPPORTS_ZBOOT_UART_PROM 143 select USE_OF 144 help 145 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 146 147config BMIPS_GENERIC 148 bool "Broadcom Generic BMIPS kernel" 149 select BOOT_RAW 150 select NO_EXCEPT_FILL 151 select USE_OF 152 select CEVT_R4K 153 select CSRC_R4K 154 select SYNC_R4K 155 select COMMON_CLK 156 select BCM6345_L1_IRQ 157 select BCM7038_L1_IRQ 158 select BCM7120_L2_IRQ 159 select BRCMSTB_L2_IRQ 160 select IRQ_MIPS_CPU 161 select DMA_NONCOHERENT 162 select SYS_SUPPORTS_32BIT_KERNEL 163 select SYS_SUPPORTS_LITTLE_ENDIAN 164 select SYS_SUPPORTS_BIG_ENDIAN 165 select SYS_SUPPORTS_HIGHMEM 166 select SYS_HAS_CPU_BMIPS32_3300 167 select SYS_HAS_CPU_BMIPS4350 168 select SYS_HAS_CPU_BMIPS4380 169 select SYS_HAS_CPU_BMIPS5000 170 select SWAP_IO_SPACE 171 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 172 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 173 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 174 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 175 help 176 Build a generic DT-based kernel image that boots on select 177 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 178 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 179 must be set appropriately for your board. 180 181config BCM47XX 182 bool "Broadcom BCM47XX based boards" 183 select BOOT_RAW 184 select CEVT_R4K 185 select CSRC_R4K 186 select DMA_NONCOHERENT 187 select HW_HAS_PCI 188 select IRQ_MIPS_CPU 189 select SYS_HAS_CPU_MIPS32_R1 190 select NO_EXCEPT_FILL 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_SUPPORTS_LITTLE_ENDIAN 193 select SYS_SUPPORTS_MIPS16 194 select SYS_HAS_EARLY_PRINTK 195 select USE_GENERIC_EARLY_PRINTK_8250 196 select GPIOLIB 197 select LEDS_GPIO_REGISTER 198 select BCM47XX_NVRAM 199 select BCM47XX_SPROM 200 help 201 Support for BCM47XX based boards 202 203config BCM63XX 204 bool "Broadcom BCM63XX based boards" 205 select BOOT_RAW 206 select CEVT_R4K 207 select CSRC_R4K 208 select SYNC_R4K 209 select DMA_NONCOHERENT 210 select IRQ_MIPS_CPU 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_BIG_ENDIAN 213 select SYS_HAS_EARLY_PRINTK 214 select SWAP_IO_SPACE 215 select GPIOLIB 216 select HAVE_CLK 217 select MIPS_L1_CACHE_SHIFT_4 218 help 219 Support for BCM63XX based boards 220 221config MIPS_COBALT 222 bool "Cobalt Server" 223 select CEVT_R4K 224 select CSRC_R4K 225 select CEVT_GT641XX 226 select DMA_NONCOHERENT 227 select HW_HAS_PCI 228 select I8253 229 select I8259 230 select IRQ_MIPS_CPU 231 select IRQ_GT641XX 232 select PCI_GT64XXX_PCI0 233 select PCI 234 select SYS_HAS_CPU_NEVADA 235 select SYS_HAS_EARLY_PRINTK 236 select SYS_SUPPORTS_32BIT_KERNEL 237 select SYS_SUPPORTS_64BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select USE_GENERIC_EARLY_PRINTK_8250 240 241config MACH_DECSTATION 242 bool "DECstations" 243 select BOOT_ELF32 244 select CEVT_DS1287 245 select CEVT_R4K if CPU_R4X00 246 select CSRC_IOASIC 247 select CSRC_R4K if CPU_R4X00 248 select CPU_DADDI_WORKAROUNDS if 64BIT 249 select CPU_R4000_WORKAROUNDS if 64BIT 250 select CPU_R4400_WORKAROUNDS if 64BIT 251 select DMA_NONCOHERENT 252 select NO_IOPORT_MAP 253 select IRQ_MIPS_CPU 254 select SYS_HAS_CPU_R3000 255 select SYS_HAS_CPU_R4X00 256 select SYS_SUPPORTS_32BIT_KERNEL 257 select SYS_SUPPORTS_64BIT_KERNEL 258 select SYS_SUPPORTS_LITTLE_ENDIAN 259 select SYS_SUPPORTS_128HZ 260 select SYS_SUPPORTS_256HZ 261 select SYS_SUPPORTS_1024HZ 262 select MIPS_L1_CACHE_SHIFT_4 263 help 264 This enables support for DEC's MIPS based workstations. For details 265 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 266 DECstation porting pages on <http://decstation.unix-ag.org/>. 267 268 If you have one of the following DECstation Models you definitely 269 want to choose R4xx0 for the CPU Type: 270 271 DECstation 5000/50 272 DECstation 5000/150 273 DECstation 5000/260 274 DECsystem 5900/260 275 276 otherwise choose R3000. 277 278config MACH_JAZZ 279 bool "Jazz family of machines" 280 select FW_ARC 281 select FW_ARC32 282 select ARCH_MAY_HAVE_PC_FDC 283 select CEVT_R4K 284 select CSRC_R4K 285 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 286 select GENERIC_ISA_DMA 287 select HAVE_PCSPKR_PLATFORM 288 select IRQ_MIPS_CPU 289 select I8253 290 select I8259 291 select ISA 292 select SYS_HAS_CPU_R4X00 293 select SYS_SUPPORTS_32BIT_KERNEL 294 select SYS_SUPPORTS_64BIT_KERNEL 295 select SYS_SUPPORTS_100HZ 296 help 297 This a family of machines based on the MIPS R4030 chipset which was 298 used by several vendors to build RISC/os and Windows NT workstations. 299 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 300 Olivetti M700-10 workstations. 301 302config MACH_INGENIC 303 bool "Ingenic SoC based machines" 304 select SYS_SUPPORTS_32BIT_KERNEL 305 select SYS_SUPPORTS_LITTLE_ENDIAN 306 select SYS_SUPPORTS_ZBOOT_UART16550 307 select DMA_NONCOHERENT 308 select IRQ_MIPS_CPU 309 select GPIOLIB 310 select COMMON_CLK 311 select GENERIC_IRQ_CHIP 312 select BUILTIN_DTB 313 select USE_OF 314 select LIBFDT 315 316config LANTIQ 317 bool "Lantiq based platforms" 318 select DMA_NONCOHERENT 319 select IRQ_MIPS_CPU 320 select CEVT_R4K 321 select CSRC_R4K 322 select SYS_HAS_CPU_MIPS32_R1 323 select SYS_HAS_CPU_MIPS32_R2 324 select SYS_SUPPORTS_BIG_ENDIAN 325 select SYS_SUPPORTS_32BIT_KERNEL 326 select SYS_SUPPORTS_MIPS16 327 select SYS_SUPPORTS_MULTITHREADING 328 select SYS_HAS_EARLY_PRINTK 329 select GPIOLIB 330 select SWAP_IO_SPACE 331 select BOOT_RAW 332 select CLKDEV_LOOKUP 333 select USE_OF 334 select PINCTRL 335 select PINCTRL_LANTIQ 336 select ARCH_HAS_RESET_CONTROLLER 337 select RESET_CONTROLLER 338 339config LASAT 340 bool "LASAT Networks platforms" 341 select CEVT_R4K 342 select CRC32 343 select CSRC_R4K 344 select DMA_NONCOHERENT 345 select SYS_HAS_EARLY_PRINTK 346 select HW_HAS_PCI 347 select IRQ_MIPS_CPU 348 select PCI_GT64XXX_PCI0 349 select MIPS_NILE4 350 select R5000_CPU_SCACHE 351 select SYS_HAS_CPU_R5000 352 select SYS_SUPPORTS_32BIT_KERNEL 353 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 354 select SYS_SUPPORTS_LITTLE_ENDIAN 355 356config MACH_LOONGSON32 357 bool "Loongson-1 family of machines" 358 select SYS_SUPPORTS_ZBOOT 359 help 360 This enables support for the Loongson-1 family of machines. 361 362 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 363 the Institute of Computing Technology (ICT), Chinese Academy of 364 Sciences (CAS). 365 366config MACH_LOONGSON64 367 bool "Loongson-2/3 family of machines" 368 select SYS_SUPPORTS_ZBOOT 369 help 370 This enables the support of Loongson-2/3 family of machines. 371 372 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 373 family of multi-core CPUs. They are both 64-bit general-purpose 374 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 375 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 376 in the People's Republic of China. The chief architect is Professor 377 Weiwu Hu. 378 379config MACH_PISTACHIO 380 bool "IMG Pistachio SoC based boards" 381 select BOOT_ELF32 382 select BOOT_RAW 383 select CEVT_R4K 384 select CLKSRC_MIPS_GIC 385 select COMMON_CLK 386 select CSRC_R4K 387 select DMA_MAYBE_COHERENT 388 select GPIOLIB 389 select IRQ_MIPS_CPU 390 select LIBFDT 391 select MFD_SYSCON 392 select MIPS_CPU_SCACHE 393 select MIPS_GIC 394 select PINCTRL 395 select REGULATOR 396 select SYS_HAS_CPU_MIPS32_R2 397 select SYS_SUPPORTS_32BIT_KERNEL 398 select SYS_SUPPORTS_LITTLE_ENDIAN 399 select SYS_SUPPORTS_MIPS_CPS 400 select SYS_SUPPORTS_MULTITHREADING 401 select SYS_SUPPORTS_RELOCATABLE 402 select SYS_SUPPORTS_ZBOOT 403 select SYS_HAS_EARLY_PRINTK 404 select USE_GENERIC_EARLY_PRINTK_8250 405 select USE_OF 406 help 407 This enables support for the IMG Pistachio SoC platform. 408 409config MACH_XILFPGA 410 bool "MIPSfpga Xilinx based boards" 411 select BOOT_ELF32 412 select BOOT_RAW 413 select BUILTIN_DTB 414 select CEVT_R4K 415 select COMMON_CLK 416 select CSRC_R4K 417 select GPIOLIB 418 select IRQ_MIPS_CPU 419 select LIBFDT 420 select MIPS_CPU_SCACHE 421 select SYS_HAS_EARLY_PRINTK 422 select SYS_HAS_CPU_MIPS32_R2 423 select SYS_SUPPORTS_32BIT_KERNEL 424 select SYS_SUPPORTS_LITTLE_ENDIAN 425 select SYS_SUPPORTS_ZBOOT_UART16550 426 select USE_OF 427 select USE_GENERIC_EARLY_PRINTK_8250 428 help 429 This enables support for the IMG University Program MIPSfpga platform. 430 431config MIPS_MALTA 432 bool "MIPS Malta board" 433 select ARCH_MAY_HAVE_PC_FDC 434 select BOOT_ELF32 435 select BOOT_RAW 436 select BUILTIN_DTB 437 select CEVT_R4K 438 select CSRC_R4K 439 select CLKSRC_MIPS_GIC 440 select COMMON_CLK 441 select DMA_MAYBE_COHERENT 442 select GENERIC_ISA_DMA 443 select HAVE_PCSPKR_PLATFORM 444 select IRQ_MIPS_CPU 445 select MIPS_GIC 446 select HW_HAS_PCI 447 select I8253 448 select I8259 449 select MIPS_BONITO64 450 select MIPS_CPU_SCACHE 451 select MIPS_L1_CACHE_SHIFT_6 452 select PCI_GT64XXX_PCI0 453 select MIPS_MSC 454 select SMP_UP if SMP 455 select SWAP_IO_SPACE 456 select SYS_HAS_CPU_MIPS32_R1 457 select SYS_HAS_CPU_MIPS32_R2 458 select SYS_HAS_CPU_MIPS32_R3_5 459 select SYS_HAS_CPU_MIPS32_R5 460 select SYS_HAS_CPU_MIPS32_R6 461 select SYS_HAS_CPU_MIPS64_R1 462 select SYS_HAS_CPU_MIPS64_R2 463 select SYS_HAS_CPU_MIPS64_R6 464 select SYS_HAS_CPU_NEVADA 465 select SYS_HAS_CPU_RM7000 466 select SYS_SUPPORTS_32BIT_KERNEL 467 select SYS_SUPPORTS_64BIT_KERNEL 468 select SYS_SUPPORTS_BIG_ENDIAN 469 select SYS_SUPPORTS_HIGHMEM 470 select SYS_SUPPORTS_LITTLE_ENDIAN 471 select SYS_SUPPORTS_MICROMIPS 472 select SYS_SUPPORTS_MIPS_CMP 473 select SYS_SUPPORTS_MIPS_CPS 474 select SYS_SUPPORTS_MIPS16 475 select SYS_SUPPORTS_MULTITHREADING 476 select SYS_SUPPORTS_SMARTMIPS 477 select SYS_SUPPORTS_ZBOOT 478 select SYS_SUPPORTS_RELOCATABLE 479 select USE_OF 480 select ZONE_DMA32 if 64BIT 481 select BUILTIN_DTB 482 select LIBFDT 483 help 484 This enables support for the MIPS Technologies Malta evaluation 485 board. 486 487config MACH_PIC32 488 bool "Microchip PIC32 Family" 489 help 490 This enables support for the Microchip PIC32 family of platforms. 491 492 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 493 microcontrollers. 494 495config MIPS_SEAD3 496 bool "MIPS SEAD3 board" 497 select BOOT_ELF32 498 select BOOT_RAW 499 select BUILTIN_DTB 500 select CEVT_R4K 501 select CSRC_R4K 502 select CLKSRC_MIPS_GIC 503 select COMMON_CLK 504 select CPU_MIPSR2_IRQ_VI 505 select CPU_MIPSR2_IRQ_EI 506 select DMA_NONCOHERENT 507 select IRQ_MIPS_CPU 508 select MIPS_GIC 509 select LIBFDT 510 select MIPS_MSC 511 select SYS_HAS_CPU_MIPS32_R1 512 select SYS_HAS_CPU_MIPS32_R2 513 select SYS_HAS_CPU_MIPS32_R6 514 select SYS_HAS_CPU_MIPS64_R1 515 select SYS_HAS_EARLY_PRINTK 516 select SYS_SUPPORTS_32BIT_KERNEL 517 select SYS_SUPPORTS_64BIT_KERNEL 518 select SYS_SUPPORTS_BIG_ENDIAN 519 select SYS_SUPPORTS_LITTLE_ENDIAN 520 select SYS_SUPPORTS_SMARTMIPS 521 select SYS_SUPPORTS_MICROMIPS 522 select SYS_SUPPORTS_MIPS16 523 select SYS_SUPPORTS_RELOCATABLE 524 select USB_EHCI_BIG_ENDIAN_DESC 525 select USB_EHCI_BIG_ENDIAN_MMIO 526 select USE_OF 527 help 528 This enables support for the MIPS Technologies SEAD3 evaluation 529 board. 530 531config NEC_MARKEINS 532 bool "NEC EMMA2RH Mark-eins board" 533 select SOC_EMMA2RH 534 select HW_HAS_PCI 535 help 536 This enables support for the NEC Electronics Mark-eins boards. 537 538config MACH_VR41XX 539 bool "NEC VR4100 series based machines" 540 select CEVT_R4K 541 select CSRC_R4K 542 select SYS_HAS_CPU_VR41XX 543 select SYS_SUPPORTS_MIPS16 544 select GPIOLIB 545 546config NXP_STB220 547 bool "NXP STB220 board" 548 select SOC_PNX833X 549 help 550 Support for NXP Semiconductors STB220 Development Board. 551 552config NXP_STB225 553 bool "NXP 225 board" 554 select SOC_PNX833X 555 select SOC_PNX8335 556 help 557 Support for NXP Semiconductors STB225 Development Board. 558 559config PMC_MSP 560 bool "PMC-Sierra MSP chipsets" 561 select CEVT_R4K 562 select CSRC_R4K 563 select DMA_NONCOHERENT 564 select SWAP_IO_SPACE 565 select NO_EXCEPT_FILL 566 select BOOT_RAW 567 select SYS_HAS_CPU_MIPS32_R1 568 select SYS_HAS_CPU_MIPS32_R2 569 select SYS_SUPPORTS_32BIT_KERNEL 570 select SYS_SUPPORTS_BIG_ENDIAN 571 select SYS_SUPPORTS_MIPS16 572 select IRQ_MIPS_CPU 573 select SERIAL_8250 574 select SERIAL_8250_CONSOLE 575 select USB_EHCI_BIG_ENDIAN_MMIO 576 select USB_EHCI_BIG_ENDIAN_DESC 577 help 578 This adds support for the PMC-Sierra family of Multi-Service 579 Processor System-On-A-Chips. These parts include a number 580 of integrated peripherals, interfaces and DSPs in addition to 581 a variety of MIPS cores. 582 583config RALINK 584 bool "Ralink based machines" 585 select CEVT_R4K 586 select CSRC_R4K 587 select BOOT_RAW 588 select DMA_NONCOHERENT 589 select IRQ_MIPS_CPU 590 select USE_OF 591 select SYS_HAS_CPU_MIPS32_R1 592 select SYS_HAS_CPU_MIPS32_R2 593 select SYS_SUPPORTS_32BIT_KERNEL 594 select SYS_SUPPORTS_LITTLE_ENDIAN 595 select SYS_SUPPORTS_MIPS16 596 select SYS_HAS_EARLY_PRINTK 597 select CLKDEV_LOOKUP 598 select ARCH_HAS_RESET_CONTROLLER 599 select RESET_CONTROLLER 600 601config SGI_IP22 602 bool "SGI IP22 (Indy/Indigo2)" 603 select FW_ARC 604 select FW_ARC32 605 select BOOT_ELF32 606 select CEVT_R4K 607 select CSRC_R4K 608 select DEFAULT_SGI_PARTITION 609 select DMA_NONCOHERENT 610 select HW_HAS_EISA 611 select I8253 612 select I8259 613 select IP22_CPU_SCACHE 614 select IRQ_MIPS_CPU 615 select GENERIC_ISA_DMA_SUPPORT_BROKEN 616 select SGI_HAS_I8042 617 select SGI_HAS_INDYDOG 618 select SGI_HAS_HAL2 619 select SGI_HAS_SEEQ 620 select SGI_HAS_WD93 621 select SGI_HAS_ZILOG 622 select SWAP_IO_SPACE 623 select SYS_HAS_CPU_R4X00 624 select SYS_HAS_CPU_R5000 625 # 626 # Disable EARLY_PRINTK for now since it leads to overwritten prom 627 # memory during early boot on some machines. 628 # 629 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 630 # for a more details discussion 631 # 632 # select SYS_HAS_EARLY_PRINTK 633 select SYS_SUPPORTS_32BIT_KERNEL 634 select SYS_SUPPORTS_64BIT_KERNEL 635 select SYS_SUPPORTS_BIG_ENDIAN 636 select MIPS_L1_CACHE_SHIFT_7 637 help 638 This are the SGI Indy, Challenge S and Indigo2, as well as certain 639 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 640 that runs on these, say Y here. 641 642config SGI_IP27 643 bool "SGI IP27 (Origin200/2000)" 644 select FW_ARC 645 select FW_ARC64 646 select BOOT_ELF64 647 select DEFAULT_SGI_PARTITION 648 select DMA_COHERENT 649 select SYS_HAS_EARLY_PRINTK 650 select HW_HAS_PCI 651 select NR_CPUS_DEFAULT_64 652 select SYS_HAS_CPU_R10000 653 select SYS_SUPPORTS_64BIT_KERNEL 654 select SYS_SUPPORTS_BIG_ENDIAN 655 select SYS_SUPPORTS_NUMA 656 select SYS_SUPPORTS_SMP 657 select MIPS_L1_CACHE_SHIFT_7 658 help 659 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 660 workstations. To compile a Linux kernel that runs on these, say Y 661 here. 662 663config SGI_IP28 664 bool "SGI IP28 (Indigo2 R10k)" 665 select FW_ARC 666 select FW_ARC64 667 select BOOT_ELF64 668 select CEVT_R4K 669 select CSRC_R4K 670 select DEFAULT_SGI_PARTITION 671 select DMA_NONCOHERENT 672 select GENERIC_ISA_DMA_SUPPORT_BROKEN 673 select IRQ_MIPS_CPU 674 select HW_HAS_EISA 675 select I8253 676 select I8259 677 select SGI_HAS_I8042 678 select SGI_HAS_INDYDOG 679 select SGI_HAS_HAL2 680 select SGI_HAS_SEEQ 681 select SGI_HAS_WD93 682 select SGI_HAS_ZILOG 683 select SWAP_IO_SPACE 684 select SYS_HAS_CPU_R10000 685 # 686 # Disable EARLY_PRINTK for now since it leads to overwritten prom 687 # memory during early boot on some machines. 688 # 689 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 690 # for a more details discussion 691 # 692 # select SYS_HAS_EARLY_PRINTK 693 select SYS_SUPPORTS_64BIT_KERNEL 694 select SYS_SUPPORTS_BIG_ENDIAN 695 select MIPS_L1_CACHE_SHIFT_7 696 help 697 This is the SGI Indigo2 with R10000 processor. To compile a Linux 698 kernel that runs on these, say Y here. 699 700config SGI_IP32 701 bool "SGI IP32 (O2)" 702 select FW_ARC 703 select FW_ARC32 704 select BOOT_ELF32 705 select CEVT_R4K 706 select CSRC_R4K 707 select DMA_NONCOHERENT 708 select HW_HAS_PCI 709 select IRQ_MIPS_CPU 710 select R5000_CPU_SCACHE 711 select RM7000_CPU_SCACHE 712 select SYS_HAS_CPU_R5000 713 select SYS_HAS_CPU_R10000 if BROKEN 714 select SYS_HAS_CPU_RM7000 715 select SYS_HAS_CPU_NEVADA 716 select SYS_SUPPORTS_64BIT_KERNEL 717 select SYS_SUPPORTS_BIG_ENDIAN 718 help 719 If you want this kernel to run on SGI O2 workstation, say Y here. 720 721config SIBYTE_CRHINE 722 bool "Sibyte BCM91120C-CRhine" 723 select BOOT_ELF32 724 select DMA_COHERENT 725 select SIBYTE_BCM1120 726 select SWAP_IO_SPACE 727 select SYS_HAS_CPU_SB1 728 select SYS_SUPPORTS_BIG_ENDIAN 729 select SYS_SUPPORTS_LITTLE_ENDIAN 730 731config SIBYTE_CARMEL 732 bool "Sibyte BCM91120x-Carmel" 733 select BOOT_ELF32 734 select DMA_COHERENT 735 select SIBYTE_BCM1120 736 select SWAP_IO_SPACE 737 select SYS_HAS_CPU_SB1 738 select SYS_SUPPORTS_BIG_ENDIAN 739 select SYS_SUPPORTS_LITTLE_ENDIAN 740 741config SIBYTE_CRHONE 742 bool "Sibyte BCM91125C-CRhone" 743 select BOOT_ELF32 744 select DMA_COHERENT 745 select SIBYTE_BCM1125 746 select SWAP_IO_SPACE 747 select SYS_HAS_CPU_SB1 748 select SYS_SUPPORTS_BIG_ENDIAN 749 select SYS_SUPPORTS_HIGHMEM 750 select SYS_SUPPORTS_LITTLE_ENDIAN 751 752config SIBYTE_RHONE 753 bool "Sibyte BCM91125E-Rhone" 754 select BOOT_ELF32 755 select DMA_COHERENT 756 select SIBYTE_BCM1125H 757 select SWAP_IO_SPACE 758 select SYS_HAS_CPU_SB1 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select SYS_SUPPORTS_LITTLE_ENDIAN 761 762config SIBYTE_SWARM 763 bool "Sibyte BCM91250A-SWARM" 764 select BOOT_ELF32 765 select DMA_COHERENT 766 select HAVE_PATA_PLATFORM 767 select SIBYTE_SB1250 768 select SWAP_IO_SPACE 769 select SYS_HAS_CPU_SB1 770 select SYS_SUPPORTS_BIG_ENDIAN 771 select SYS_SUPPORTS_HIGHMEM 772 select SYS_SUPPORTS_LITTLE_ENDIAN 773 select ZONE_DMA32 if 64BIT 774 775config SIBYTE_LITTLESUR 776 bool "Sibyte BCM91250C2-LittleSur" 777 select BOOT_ELF32 778 select DMA_COHERENT 779 select HAVE_PATA_PLATFORM 780 select SIBYTE_SB1250 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_SENTOSA 788 bool "Sibyte BCM91250E-Sentosa" 789 select BOOT_ELF32 790 select DMA_COHERENT 791 select SIBYTE_SB1250 792 select SWAP_IO_SPACE 793 select SYS_HAS_CPU_SB1 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_LITTLE_ENDIAN 796 797config SIBYTE_BIGSUR 798 bool "Sibyte BCM91480B-BigSur" 799 select BOOT_ELF32 800 select DMA_COHERENT 801 select NR_CPUS_DEFAULT_4 802 select SIBYTE_BCM1x80 803 select SWAP_IO_SPACE 804 select SYS_HAS_CPU_SB1 805 select SYS_SUPPORTS_BIG_ENDIAN 806 select SYS_SUPPORTS_HIGHMEM 807 select SYS_SUPPORTS_LITTLE_ENDIAN 808 select ZONE_DMA32 if 64BIT 809 810config SNI_RM 811 bool "SNI RM200/300/400" 812 select FW_ARC if CPU_LITTLE_ENDIAN 813 select FW_ARC32 if CPU_LITTLE_ENDIAN 814 select FW_SNIPROM if CPU_BIG_ENDIAN 815 select ARCH_MAY_HAVE_PC_FDC 816 select BOOT_ELF32 817 select CEVT_R4K 818 select CSRC_R4K 819 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 820 select DMA_NONCOHERENT 821 select GENERIC_ISA_DMA 822 select HAVE_PCSPKR_PLATFORM 823 select HW_HAS_EISA 824 select HW_HAS_PCI 825 select IRQ_MIPS_CPU 826 select I8253 827 select I8259 828 select ISA 829 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 830 select SYS_HAS_CPU_R4X00 831 select SYS_HAS_CPU_R5000 832 select SYS_HAS_CPU_R10000 833 select R5000_CPU_SCACHE 834 select SYS_HAS_EARLY_PRINTK 835 select SYS_SUPPORTS_32BIT_KERNEL 836 select SYS_SUPPORTS_64BIT_KERNEL 837 select SYS_SUPPORTS_BIG_ENDIAN 838 select SYS_SUPPORTS_HIGHMEM 839 select SYS_SUPPORTS_LITTLE_ENDIAN 840 help 841 The SNI RM200/300/400 are MIPS-based machines manufactured by 842 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 843 Technology and now in turn merged with Fujitsu. Say Y here to 844 support this machine type. 845 846config MACH_TX39XX 847 bool "Toshiba TX39 series based machines" 848 849config MACH_TX49XX 850 bool "Toshiba TX49 series based machines" 851 852config MIKROTIK_RB532 853 bool "Mikrotik RB532 boards" 854 select CEVT_R4K 855 select CSRC_R4K 856 select DMA_NONCOHERENT 857 select HW_HAS_PCI 858 select IRQ_MIPS_CPU 859 select SYS_HAS_CPU_MIPS32_R1 860 select SYS_SUPPORTS_32BIT_KERNEL 861 select SYS_SUPPORTS_LITTLE_ENDIAN 862 select SWAP_IO_SPACE 863 select BOOT_RAW 864 select GPIOLIB 865 select MIPS_L1_CACHE_SHIFT_4 866 help 867 Support the Mikrotik(tm) RouterBoard 532 series, 868 based on the IDT RC32434 SoC. 869 870config CAVIUM_OCTEON_SOC 871 bool "Cavium Networks Octeon SoC based boards" 872 select CEVT_R4K 873 select ARCH_PHYS_ADDR_T_64BIT 874 select DMA_COHERENT 875 select SYS_SUPPORTS_64BIT_KERNEL 876 select SYS_SUPPORTS_BIG_ENDIAN 877 select EDAC_SUPPORT 878 select EDAC_ATOMIC_SCRUB 879 select SYS_SUPPORTS_LITTLE_ENDIAN 880 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 881 select SYS_HAS_EARLY_PRINTK 882 select SYS_HAS_CPU_CAVIUM_OCTEON 883 select SWAP_IO_SPACE 884 select HW_HAS_PCI 885 select ZONE_DMA32 886 select HOLES_IN_ZONE 887 select GPIOLIB 888 select LIBFDT 889 select USE_OF 890 select ARCH_SPARSEMEM_ENABLE 891 select SYS_SUPPORTS_SMP 892 select NR_CPUS_DEFAULT_16 893 select BUILTIN_DTB 894 select MTD_COMPLEX_MAPPINGS 895 help 896 This option supports all of the Octeon reference boards from Cavium 897 Networks. It builds a kernel that dynamically determines the Octeon 898 CPU type and supports all known board reference implementations. 899 Some of the supported boards are: 900 EBT3000 901 EBH3000 902 EBH3100 903 Thunder 904 Kodama 905 Hikari 906 Say Y here for most Octeon reference boards. 907 908config NLM_XLR_BOARD 909 bool "Netlogic XLR/XLS based systems" 910 select BOOT_ELF32 911 select NLM_COMMON 912 select SYS_HAS_CPU_XLR 913 select SYS_SUPPORTS_SMP 914 select HW_HAS_PCI 915 select SWAP_IO_SPACE 916 select SYS_SUPPORTS_32BIT_KERNEL 917 select SYS_SUPPORTS_64BIT_KERNEL 918 select ARCH_PHYS_ADDR_T_64BIT 919 select SYS_SUPPORTS_BIG_ENDIAN 920 select SYS_SUPPORTS_HIGHMEM 921 select DMA_COHERENT 922 select NR_CPUS_DEFAULT_32 923 select CEVT_R4K 924 select CSRC_R4K 925 select IRQ_MIPS_CPU 926 select ZONE_DMA32 if 64BIT 927 select SYNC_R4K 928 select SYS_HAS_EARLY_PRINTK 929 select SYS_SUPPORTS_ZBOOT 930 select SYS_SUPPORTS_ZBOOT_UART16550 931 help 932 Support for systems based on Netlogic XLR and XLS processors. 933 Say Y here if you have a XLR or XLS based board. 934 935config NLM_XLP_BOARD 936 bool "Netlogic XLP based systems" 937 select BOOT_ELF32 938 select NLM_COMMON 939 select SYS_HAS_CPU_XLP 940 select SYS_SUPPORTS_SMP 941 select HW_HAS_PCI 942 select SYS_SUPPORTS_32BIT_KERNEL 943 select SYS_SUPPORTS_64BIT_KERNEL 944 select ARCH_PHYS_ADDR_T_64BIT 945 select GPIOLIB 946 select SYS_SUPPORTS_BIG_ENDIAN 947 select SYS_SUPPORTS_LITTLE_ENDIAN 948 select SYS_SUPPORTS_HIGHMEM 949 select DMA_COHERENT 950 select NR_CPUS_DEFAULT_32 951 select CEVT_R4K 952 select CSRC_R4K 953 select IRQ_MIPS_CPU 954 select ZONE_DMA32 if 64BIT 955 select SYNC_R4K 956 select SYS_HAS_EARLY_PRINTK 957 select USE_OF 958 select SYS_SUPPORTS_ZBOOT 959 select SYS_SUPPORTS_ZBOOT_UART16550 960 help 961 This board is based on Netlogic XLP Processor. 962 Say Y here if you have a XLP based board. 963 964config MIPS_PARAVIRT 965 bool "Para-Virtualized guest system" 966 select CEVT_R4K 967 select CSRC_R4K 968 select DMA_COHERENT 969 select SYS_SUPPORTS_64BIT_KERNEL 970 select SYS_SUPPORTS_32BIT_KERNEL 971 select SYS_SUPPORTS_BIG_ENDIAN 972 select SYS_SUPPORTS_SMP 973 select NR_CPUS_DEFAULT_4 974 select SYS_HAS_EARLY_PRINTK 975 select SYS_HAS_CPU_MIPS32_R2 976 select SYS_HAS_CPU_MIPS64_R2 977 select SYS_HAS_CPU_CAVIUM_OCTEON 978 select HW_HAS_PCI 979 select SWAP_IO_SPACE 980 help 981 This option supports guest running under ???? 982 983endchoice 984 985source "arch/mips/alchemy/Kconfig" 986source "arch/mips/ath25/Kconfig" 987source "arch/mips/ath79/Kconfig" 988source "arch/mips/bcm47xx/Kconfig" 989source "arch/mips/bcm63xx/Kconfig" 990source "arch/mips/bmips/Kconfig" 991source "arch/mips/jazz/Kconfig" 992source "arch/mips/jz4740/Kconfig" 993source "arch/mips/lantiq/Kconfig" 994source "arch/mips/lasat/Kconfig" 995source "arch/mips/pic32/Kconfig" 996source "arch/mips/pistachio/Kconfig" 997source "arch/mips/pmcs-msp71xx/Kconfig" 998source "arch/mips/ralink/Kconfig" 999source "arch/mips/sgi-ip27/Kconfig" 1000source "arch/mips/sibyte/Kconfig" 1001source "arch/mips/txx9/Kconfig" 1002source "arch/mips/vr41xx/Kconfig" 1003source "arch/mips/cavium-octeon/Kconfig" 1004source "arch/mips/loongson32/Kconfig" 1005source "arch/mips/loongson64/Kconfig" 1006source "arch/mips/netlogic/Kconfig" 1007source "arch/mips/paravirt/Kconfig" 1008source "arch/mips/xilfpga/Kconfig" 1009 1010endmenu 1011 1012config RWSEM_GENERIC_SPINLOCK 1013 bool 1014 default y 1015 1016config RWSEM_XCHGADD_ALGORITHM 1017 bool 1018 1019config ARCH_HAS_ILOG2_U32 1020 bool 1021 default n 1022 1023config ARCH_HAS_ILOG2_U64 1024 bool 1025 default n 1026 1027config GENERIC_HWEIGHT 1028 bool 1029 default y 1030 1031config GENERIC_CALIBRATE_DELAY 1032 bool 1033 default y 1034 1035config SCHED_OMIT_FRAME_POINTER 1036 bool 1037 default y 1038 1039# 1040# Select some configuration options automatically based on user selections. 1041# 1042config FW_ARC 1043 bool 1044 1045config ARCH_MAY_HAVE_PC_FDC 1046 bool 1047 1048config BOOT_RAW 1049 bool 1050 1051config CEVT_BCM1480 1052 bool 1053 1054config CEVT_DS1287 1055 bool 1056 1057config CEVT_GT641XX 1058 bool 1059 1060config CEVT_R4K 1061 bool 1062 1063config CEVT_SB1250 1064 bool 1065 1066config CEVT_TXX9 1067 bool 1068 1069config CSRC_BCM1480 1070 bool 1071 1072config CSRC_IOASIC 1073 bool 1074 1075config CSRC_R4K 1076 bool 1077 1078config CSRC_SB1250 1079 bool 1080 1081config MIPS_CLOCK_VSYSCALL 1082 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1083 1084config GPIO_TXX9 1085 select GPIOLIB 1086 bool 1087 1088config FW_CFE 1089 bool 1090 1091config ARCH_DMA_ADDR_T_64BIT 1092 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT 1093 1094config ARCH_SUPPORTS_UPROBES 1095 bool 1096 1097config DMA_MAYBE_COHERENT 1098 select DMA_NONCOHERENT 1099 bool 1100 1101config DMA_COHERENT 1102 bool 1103 1104config DMA_NONCOHERENT 1105 bool 1106 select NEED_DMA_MAP_STATE 1107 1108config NEED_DMA_MAP_STATE 1109 bool 1110 1111config SYS_HAS_EARLY_PRINTK 1112 bool 1113 1114config HOTPLUG_CPU 1115 bool "Support for hot-pluggable CPUs" 1116 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 1117 help 1118 Say Y here to allow turning CPUs off and on. CPUs can be 1119 controlled through /sys/devices/system/cpu. 1120 (Note: power management support will enable this option 1121 automatically on SMP systems. ) 1122 Say N if you want to disable CPU hotplug. 1123 1124config SYS_SUPPORTS_HOTPLUG_CPU 1125 bool 1126 1127config MIPS_BONITO64 1128 bool 1129 1130config MIPS_MSC 1131 bool 1132 1133config MIPS_NILE4 1134 bool 1135 1136config SYNC_R4K 1137 bool 1138 1139config MIPS_MACHINE 1140 def_bool n 1141 1142config NO_IOPORT_MAP 1143 def_bool n 1144 1145config GENERIC_CSUM 1146 bool 1147 1148config GENERIC_ISA_DMA 1149 bool 1150 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1151 select ISA_DMA_API 1152 1153config GENERIC_ISA_DMA_SUPPORT_BROKEN 1154 bool 1155 select GENERIC_ISA_DMA 1156 1157config ISA_DMA_API 1158 bool 1159 1160config HOLES_IN_ZONE 1161 bool 1162 1163config SYS_SUPPORTS_RELOCATABLE 1164 bool 1165 help 1166 Selected if the platform supports relocating the kernel. 1167 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1168 to allow access to command line and entropy sources. 1169 1170# 1171# Endianness selection. Sufficiently obscure so many users don't know what to 1172# answer,so we try hard to limit the available choices. Also the use of a 1173# choice statement should be more obvious to the user. 1174# 1175choice 1176 prompt "Endianness selection" 1177 help 1178 Some MIPS machines can be configured for either little or big endian 1179 byte order. These modes require different kernels and a different 1180 Linux distribution. In general there is one preferred byteorder for a 1181 particular system but some systems are just as commonly used in the 1182 one or the other endianness. 1183 1184config CPU_BIG_ENDIAN 1185 bool "Big endian" 1186 depends on SYS_SUPPORTS_BIG_ENDIAN 1187 1188config CPU_LITTLE_ENDIAN 1189 bool "Little endian" 1190 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1191 1192endchoice 1193 1194config EXPORT_UASM 1195 bool 1196 1197config SYS_SUPPORTS_APM_EMULATION 1198 bool 1199 1200config SYS_SUPPORTS_BIG_ENDIAN 1201 bool 1202 1203config SYS_SUPPORTS_LITTLE_ENDIAN 1204 bool 1205 1206config SYS_SUPPORTS_HUGETLBFS 1207 bool 1208 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1209 default y 1210 1211config MIPS_HUGE_TLB_SUPPORT 1212 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1213 1214config IRQ_CPU_RM7K 1215 bool 1216 1217config IRQ_MSP_SLP 1218 bool 1219 1220config IRQ_MSP_CIC 1221 bool 1222 1223config IRQ_TXX9 1224 bool 1225 1226config IRQ_GT641XX 1227 bool 1228 1229config PCI_GT64XXX_PCI0 1230 bool 1231 1232config NO_EXCEPT_FILL 1233 bool 1234 1235config SOC_EMMA2RH 1236 bool 1237 select CEVT_R4K 1238 select CSRC_R4K 1239 select DMA_NONCOHERENT 1240 select IRQ_MIPS_CPU 1241 select SWAP_IO_SPACE 1242 select SYS_HAS_CPU_R5500 1243 select SYS_SUPPORTS_32BIT_KERNEL 1244 select SYS_SUPPORTS_64BIT_KERNEL 1245 select SYS_SUPPORTS_BIG_ENDIAN 1246 1247config SOC_PNX833X 1248 bool 1249 select CEVT_R4K 1250 select CSRC_R4K 1251 select IRQ_MIPS_CPU 1252 select DMA_NONCOHERENT 1253 select SYS_HAS_CPU_MIPS32_R2 1254 select SYS_SUPPORTS_32BIT_KERNEL 1255 select SYS_SUPPORTS_LITTLE_ENDIAN 1256 select SYS_SUPPORTS_BIG_ENDIAN 1257 select SYS_SUPPORTS_MIPS16 1258 select CPU_MIPSR2_IRQ_VI 1259 1260config SOC_PNX8335 1261 bool 1262 select SOC_PNX833X 1263 1264config MIPS_SPRAM 1265 bool 1266 1267config SWAP_IO_SPACE 1268 bool 1269 1270config SGI_HAS_INDYDOG 1271 bool 1272 1273config SGI_HAS_HAL2 1274 bool 1275 1276config SGI_HAS_SEEQ 1277 bool 1278 1279config SGI_HAS_WD93 1280 bool 1281 1282config SGI_HAS_ZILOG 1283 bool 1284 1285config SGI_HAS_I8042 1286 bool 1287 1288config DEFAULT_SGI_PARTITION 1289 bool 1290 1291config FW_ARC32 1292 bool 1293 1294config FW_SNIPROM 1295 bool 1296 1297config BOOT_ELF32 1298 bool 1299 1300config MIPS_L1_CACHE_SHIFT_4 1301 bool 1302 1303config MIPS_L1_CACHE_SHIFT_5 1304 bool 1305 1306config MIPS_L1_CACHE_SHIFT_6 1307 bool 1308 1309config MIPS_L1_CACHE_SHIFT_7 1310 bool 1311 1312config MIPS_L1_CACHE_SHIFT 1313 int 1314 default "7" if MIPS_L1_CACHE_SHIFT_7 1315 default "6" if MIPS_L1_CACHE_SHIFT_6 1316 default "5" if MIPS_L1_CACHE_SHIFT_5 1317 default "4" if MIPS_L1_CACHE_SHIFT_4 1318 default "5" 1319 1320config HAVE_STD_PC_SERIAL_PORT 1321 bool 1322 1323config ARC_CONSOLE 1324 bool "ARC console support" 1325 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1326 1327config ARC_MEMORY 1328 bool 1329 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1330 default y 1331 1332config ARC_PROMLIB 1333 bool 1334 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1335 default y 1336 1337config FW_ARC64 1338 bool 1339 1340config BOOT_ELF64 1341 bool 1342 1343menu "CPU selection" 1344 1345choice 1346 prompt "CPU type" 1347 default CPU_R4X00 1348 1349config CPU_LOONGSON3 1350 bool "Loongson 3 CPU" 1351 depends on SYS_HAS_CPU_LOONGSON3 1352 select CPU_SUPPORTS_64BIT_KERNEL 1353 select CPU_SUPPORTS_HIGHMEM 1354 select CPU_SUPPORTS_HUGEPAGES 1355 select WEAK_ORDERING 1356 select WEAK_REORDERING_BEYOND_LLSC 1357 select MIPS_PGD_C0_CONTEXT 1358 select GPIOLIB 1359 help 1360 The Loongson 3 processor implements the MIPS64R2 instruction 1361 set with many extensions. 1362 1363config LOONGSON3_ENHANCEMENT 1364 bool "New Loongson 3 CPU Enhancements" 1365 default n 1366 select CPU_MIPSR2 1367 select CPU_HAS_PREFETCH 1368 depends on CPU_LOONGSON3 1369 help 1370 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1371 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1372 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1373 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1374 Fast TLB refill support, etc. 1375 1376 This option enable those enhancements which are not probed at run 1377 time. If you want a generic kernel to run on all Loongson 3 machines, 1378 please say 'N' here. If you want a high-performance kernel to run on 1379 new Loongson 3 machines only, please say 'Y' here. 1380 1381config CPU_LOONGSON2E 1382 bool "Loongson 2E" 1383 depends on SYS_HAS_CPU_LOONGSON2E 1384 select CPU_LOONGSON2 1385 help 1386 The Loongson 2E processor implements the MIPS III instruction set 1387 with many extensions. 1388 1389 It has an internal FPGA northbridge, which is compatible to 1390 bonito64. 1391 1392config CPU_LOONGSON2F 1393 bool "Loongson 2F" 1394 depends on SYS_HAS_CPU_LOONGSON2F 1395 select CPU_LOONGSON2 1396 select GPIOLIB 1397 help 1398 The Loongson 2F processor implements the MIPS III instruction set 1399 with many extensions. 1400 1401 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1402 have a similar programming interface with FPGA northbridge used in 1403 Loongson2E. 1404 1405config CPU_LOONGSON1B 1406 bool "Loongson 1B" 1407 depends on SYS_HAS_CPU_LOONGSON1B 1408 select CPU_LOONGSON1 1409 select ARCH_WANT_OPTIONAL_GPIOLIB 1410 select LEDS_GPIO_REGISTER 1411 help 1412 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1413 release 2 instruction set. 1414 1415config CPU_MIPS32_R1 1416 bool "MIPS32 Release 1" 1417 depends on SYS_HAS_CPU_MIPS32_R1 1418 select CPU_HAS_PREFETCH 1419 select CPU_SUPPORTS_32BIT_KERNEL 1420 select CPU_SUPPORTS_HIGHMEM 1421 help 1422 Choose this option to build a kernel for release 1 or later of the 1423 MIPS32 architecture. Most modern embedded systems with a 32-bit 1424 MIPS processor are based on a MIPS32 processor. If you know the 1425 specific type of processor in your system, choose those that one 1426 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1427 Release 2 of the MIPS32 architecture is available since several 1428 years so chances are you even have a MIPS32 Release 2 processor 1429 in which case you should choose CPU_MIPS32_R2 instead for better 1430 performance. 1431 1432config CPU_MIPS32_R2 1433 bool "MIPS32 Release 2" 1434 depends on SYS_HAS_CPU_MIPS32_R2 1435 select CPU_HAS_PREFETCH 1436 select CPU_SUPPORTS_32BIT_KERNEL 1437 select CPU_SUPPORTS_HIGHMEM 1438 select CPU_SUPPORTS_MSA 1439 select HAVE_KVM 1440 help 1441 Choose this option to build a kernel for release 2 or later of the 1442 MIPS32 architecture. Most modern embedded systems with a 32-bit 1443 MIPS processor are based on a MIPS32 processor. If you know the 1444 specific type of processor in your system, choose those that one 1445 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1446 1447config CPU_MIPS32_R6 1448 bool "MIPS32 Release 6" 1449 depends on SYS_HAS_CPU_MIPS32_R6 1450 select CPU_HAS_PREFETCH 1451 select CPU_SUPPORTS_32BIT_KERNEL 1452 select CPU_SUPPORTS_HIGHMEM 1453 select CPU_SUPPORTS_MSA 1454 select GENERIC_CSUM 1455 select HAVE_KVM 1456 select MIPS_O32_FP64_SUPPORT 1457 help 1458 Choose this option to build a kernel for release 6 or later of the 1459 MIPS32 architecture. New MIPS processors, starting with the Warrior 1460 family, are based on a MIPS32r6 processor. If you own an older 1461 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1462 1463config CPU_MIPS64_R1 1464 bool "MIPS64 Release 1" 1465 depends on SYS_HAS_CPU_MIPS64_R1 1466 select CPU_HAS_PREFETCH 1467 select CPU_SUPPORTS_32BIT_KERNEL 1468 select CPU_SUPPORTS_64BIT_KERNEL 1469 select CPU_SUPPORTS_HIGHMEM 1470 select CPU_SUPPORTS_HUGEPAGES 1471 help 1472 Choose this option to build a kernel for release 1 or later of the 1473 MIPS64 architecture. Many modern embedded systems with a 64-bit 1474 MIPS processor are based on a MIPS64 processor. If you know the 1475 specific type of processor in your system, choose those that one 1476 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1477 Release 2 of the MIPS64 architecture is available since several 1478 years so chances are you even have a MIPS64 Release 2 processor 1479 in which case you should choose CPU_MIPS64_R2 instead for better 1480 performance. 1481 1482config CPU_MIPS64_R2 1483 bool "MIPS64 Release 2" 1484 depends on SYS_HAS_CPU_MIPS64_R2 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_64BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 select CPU_SUPPORTS_HUGEPAGES 1490 select CPU_SUPPORTS_MSA 1491 select HAVE_KVM 1492 help 1493 Choose this option to build a kernel for release 2 or later of the 1494 MIPS64 architecture. Many modern embedded systems with a 64-bit 1495 MIPS processor are based on a MIPS64 processor. If you know the 1496 specific type of processor in your system, choose those that one 1497 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1498 1499config CPU_MIPS64_R6 1500 bool "MIPS64 Release 6" 1501 depends on SYS_HAS_CPU_MIPS64_R6 1502 select CPU_HAS_PREFETCH 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_64BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 select CPU_SUPPORTS_MSA 1507 select GENERIC_CSUM 1508 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1509 select HAVE_KVM 1510 help 1511 Choose this option to build a kernel for release 6 or later of the 1512 MIPS64 architecture. New MIPS processors, starting with the Warrior 1513 family, are based on a MIPS64r6 processor. If you own an older 1514 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1515 1516config CPU_R3000 1517 bool "R3000" 1518 depends on SYS_HAS_CPU_R3000 1519 select CPU_HAS_WB 1520 select CPU_SUPPORTS_32BIT_KERNEL 1521 select CPU_SUPPORTS_HIGHMEM 1522 help 1523 Please make sure to pick the right CPU type. Linux/MIPS is not 1524 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1525 *not* work on R4000 machines and vice versa. However, since most 1526 of the supported machines have an R4000 (or similar) CPU, R4x00 1527 might be a safe bet. If the resulting kernel does not work, 1528 try to recompile with R3000. 1529 1530config CPU_TX39XX 1531 bool "R39XX" 1532 depends on SYS_HAS_CPU_TX39XX 1533 select CPU_SUPPORTS_32BIT_KERNEL 1534 1535config CPU_VR41XX 1536 bool "R41xx" 1537 depends on SYS_HAS_CPU_VR41XX 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 help 1541 The options selects support for the NEC VR4100 series of processors. 1542 Only choose this option if you have one of these processors as a 1543 kernel built with this option will not run on any other type of 1544 processor or vice versa. 1545 1546config CPU_R4300 1547 bool "R4300" 1548 depends on SYS_HAS_CPU_R4300 1549 select CPU_SUPPORTS_32BIT_KERNEL 1550 select CPU_SUPPORTS_64BIT_KERNEL 1551 help 1552 MIPS Technologies R4300-series processors. 1553 1554config CPU_R4X00 1555 bool "R4x00" 1556 depends on SYS_HAS_CPU_R4X00 1557 select CPU_SUPPORTS_32BIT_KERNEL 1558 select CPU_SUPPORTS_64BIT_KERNEL 1559 select CPU_SUPPORTS_HUGEPAGES 1560 help 1561 MIPS Technologies R4000-series processors other than 4300, including 1562 the R4000, R4400, R4600, and 4700. 1563 1564config CPU_TX49XX 1565 bool "R49XX" 1566 depends on SYS_HAS_CPU_TX49XX 1567 select CPU_HAS_PREFETCH 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 select CPU_SUPPORTS_64BIT_KERNEL 1570 select CPU_SUPPORTS_HUGEPAGES 1571 1572config CPU_R5000 1573 bool "R5000" 1574 depends on SYS_HAS_CPU_R5000 1575 select CPU_SUPPORTS_32BIT_KERNEL 1576 select CPU_SUPPORTS_64BIT_KERNEL 1577 select CPU_SUPPORTS_HUGEPAGES 1578 help 1579 MIPS Technologies R5000-series processors other than the Nevada. 1580 1581config CPU_R5432 1582 bool "R5432" 1583 depends on SYS_HAS_CPU_R5432 1584 select CPU_SUPPORTS_32BIT_KERNEL 1585 select CPU_SUPPORTS_64BIT_KERNEL 1586 select CPU_SUPPORTS_HUGEPAGES 1587 1588config CPU_R5500 1589 bool "R5500" 1590 depends on SYS_HAS_CPU_R5500 1591 select CPU_SUPPORTS_32BIT_KERNEL 1592 select CPU_SUPPORTS_64BIT_KERNEL 1593 select CPU_SUPPORTS_HUGEPAGES 1594 help 1595 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1596 instruction set. 1597 1598config CPU_R6000 1599 bool "R6000" 1600 depends on SYS_HAS_CPU_R6000 1601 select CPU_SUPPORTS_32BIT_KERNEL 1602 help 1603 MIPS Technologies R6000 and R6000A series processors. Note these 1604 processors are extremely rare and the support for them is incomplete. 1605 1606config CPU_NEVADA 1607 bool "RM52xx" 1608 depends on SYS_HAS_CPU_NEVADA 1609 select CPU_SUPPORTS_32BIT_KERNEL 1610 select CPU_SUPPORTS_64BIT_KERNEL 1611 select CPU_SUPPORTS_HUGEPAGES 1612 help 1613 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1614 1615config CPU_R8000 1616 bool "R8000" 1617 depends on SYS_HAS_CPU_R8000 1618 select CPU_HAS_PREFETCH 1619 select CPU_SUPPORTS_64BIT_KERNEL 1620 help 1621 MIPS Technologies R8000 processors. Note these processors are 1622 uncommon and the support for them is incomplete. 1623 1624config CPU_R10000 1625 bool "R10000" 1626 depends on SYS_HAS_CPU_R10000 1627 select CPU_HAS_PREFETCH 1628 select CPU_SUPPORTS_32BIT_KERNEL 1629 select CPU_SUPPORTS_64BIT_KERNEL 1630 select CPU_SUPPORTS_HIGHMEM 1631 select CPU_SUPPORTS_HUGEPAGES 1632 help 1633 MIPS Technologies R10000-series processors. 1634 1635config CPU_RM7000 1636 bool "RM7000" 1637 depends on SYS_HAS_CPU_RM7000 1638 select CPU_HAS_PREFETCH 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 select CPU_SUPPORTS_HIGHMEM 1642 select CPU_SUPPORTS_HUGEPAGES 1643 1644config CPU_SB1 1645 bool "SB1" 1646 depends on SYS_HAS_CPU_SB1 1647 select CPU_SUPPORTS_32BIT_KERNEL 1648 select CPU_SUPPORTS_64BIT_KERNEL 1649 select CPU_SUPPORTS_HIGHMEM 1650 select CPU_SUPPORTS_HUGEPAGES 1651 select WEAK_ORDERING 1652 1653config CPU_CAVIUM_OCTEON 1654 bool "Cavium Octeon processor" 1655 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1656 select CPU_HAS_PREFETCH 1657 select CPU_SUPPORTS_64BIT_KERNEL 1658 select WEAK_ORDERING 1659 select CPU_SUPPORTS_HIGHMEM 1660 select CPU_SUPPORTS_HUGEPAGES 1661 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1662 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1663 select MIPS_L1_CACHE_SHIFT_7 1664 help 1665 The Cavium Octeon processor is a highly integrated chip containing 1666 many ethernet hardware widgets for networking tasks. The processor 1667 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1668 Full details can be found at http://www.caviumnetworks.com. 1669 1670config CPU_BMIPS 1671 bool "Broadcom BMIPS" 1672 depends on SYS_HAS_CPU_BMIPS 1673 select CPU_MIPS32 1674 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1675 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1676 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1677 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1678 select CPU_SUPPORTS_32BIT_KERNEL 1679 select DMA_NONCOHERENT 1680 select IRQ_MIPS_CPU 1681 select SWAP_IO_SPACE 1682 select WEAK_ORDERING 1683 select CPU_SUPPORTS_HIGHMEM 1684 select CPU_HAS_PREFETCH 1685 help 1686 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1687 1688config CPU_XLR 1689 bool "Netlogic XLR SoC" 1690 depends on SYS_HAS_CPU_XLR 1691 select CPU_SUPPORTS_32BIT_KERNEL 1692 select CPU_SUPPORTS_64BIT_KERNEL 1693 select CPU_SUPPORTS_HIGHMEM 1694 select CPU_SUPPORTS_HUGEPAGES 1695 select WEAK_ORDERING 1696 select WEAK_REORDERING_BEYOND_LLSC 1697 help 1698 Netlogic Microsystems XLR/XLS processors. 1699 1700config CPU_XLP 1701 bool "Netlogic XLP SoC" 1702 depends on SYS_HAS_CPU_XLP 1703 select CPU_SUPPORTS_32BIT_KERNEL 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select CPU_SUPPORTS_HIGHMEM 1706 select WEAK_ORDERING 1707 select WEAK_REORDERING_BEYOND_LLSC 1708 select CPU_HAS_PREFETCH 1709 select CPU_MIPSR2 1710 select CPU_SUPPORTS_HUGEPAGES 1711 select MIPS_ASID_BITS_VARIABLE 1712 help 1713 Netlogic Microsystems XLP processors. 1714endchoice 1715 1716config CPU_MIPS32_3_5_FEATURES 1717 bool "MIPS32 Release 3.5 Features" 1718 depends on SYS_HAS_CPU_MIPS32_R3_5 1719 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1720 help 1721 Choose this option to build a kernel for release 2 or later of the 1722 MIPS32 architecture including features from the 3.5 release such as 1723 support for Enhanced Virtual Addressing (EVA). 1724 1725config CPU_MIPS32_3_5_EVA 1726 bool "Enhanced Virtual Addressing (EVA)" 1727 depends on CPU_MIPS32_3_5_FEATURES 1728 select EVA 1729 default y 1730 help 1731 Choose this option if you want to enable the Enhanced Virtual 1732 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1733 One of its primary benefits is an increase in the maximum size 1734 of lowmem (up to 3GB). If unsure, say 'N' here. 1735 1736config CPU_MIPS32_R5_FEATURES 1737 bool "MIPS32 Release 5 Features" 1738 depends on SYS_HAS_CPU_MIPS32_R5 1739 depends on CPU_MIPS32_R2 1740 help 1741 Choose this option to build a kernel for release 2 or later of the 1742 MIPS32 architecture including features from release 5 such as 1743 support for Extended Physical Addressing (XPA). 1744 1745config CPU_MIPS32_R5_XPA 1746 bool "Extended Physical Addressing (XPA)" 1747 depends on CPU_MIPS32_R5_FEATURES 1748 depends on !EVA 1749 depends on !PAGE_SIZE_4KB 1750 depends on SYS_SUPPORTS_HIGHMEM 1751 select XPA 1752 select HIGHMEM 1753 select ARCH_PHYS_ADDR_T_64BIT 1754 default n 1755 help 1756 Choose this option if you want to enable the Extended Physical 1757 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1758 benefit is to increase physical addressing equal to or greater 1759 than 40 bits. Note that this has the side effect of turning on 1760 64-bit addressing which in turn makes the PTEs 64-bit in size. 1761 If unsure, say 'N' here. 1762 1763if CPU_LOONGSON2F 1764config CPU_NOP_WORKAROUNDS 1765 bool 1766 1767config CPU_JUMP_WORKAROUNDS 1768 bool 1769 1770config CPU_LOONGSON2F_WORKAROUNDS 1771 bool "Loongson 2F Workarounds" 1772 default y 1773 select CPU_NOP_WORKAROUNDS 1774 select CPU_JUMP_WORKAROUNDS 1775 help 1776 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1777 require workarounds. Without workarounds the system may hang 1778 unexpectedly. For more information please refer to the gas 1779 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1780 1781 Loongson 2F03 and later have fixed these issues and no workarounds 1782 are needed. The workarounds have no significant side effect on them 1783 but may decrease the performance of the system so this option should 1784 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1785 systems. 1786 1787 If unsure, please say Y. 1788endif # CPU_LOONGSON2F 1789 1790config SYS_SUPPORTS_ZBOOT 1791 bool 1792 select HAVE_KERNEL_GZIP 1793 select HAVE_KERNEL_BZIP2 1794 select HAVE_KERNEL_LZ4 1795 select HAVE_KERNEL_LZMA 1796 select HAVE_KERNEL_LZO 1797 select HAVE_KERNEL_XZ 1798 1799config SYS_SUPPORTS_ZBOOT_UART16550 1800 bool 1801 select SYS_SUPPORTS_ZBOOT 1802 1803config SYS_SUPPORTS_ZBOOT_UART_PROM 1804 bool 1805 select SYS_SUPPORTS_ZBOOT 1806 1807config CPU_LOONGSON2 1808 bool 1809 select CPU_SUPPORTS_32BIT_KERNEL 1810 select CPU_SUPPORTS_64BIT_KERNEL 1811 select CPU_SUPPORTS_HIGHMEM 1812 select CPU_SUPPORTS_HUGEPAGES 1813 1814config CPU_LOONGSON1 1815 bool 1816 select CPU_MIPS32 1817 select CPU_MIPSR2 1818 select CPU_HAS_PREFETCH 1819 select CPU_SUPPORTS_32BIT_KERNEL 1820 select CPU_SUPPORTS_HIGHMEM 1821 select CPU_SUPPORTS_CPUFREQ 1822 1823config CPU_BMIPS32_3300 1824 select SMP_UP if SMP 1825 bool 1826 1827config CPU_BMIPS4350 1828 bool 1829 select SYS_SUPPORTS_SMP 1830 select SYS_SUPPORTS_HOTPLUG_CPU 1831 1832config CPU_BMIPS4380 1833 bool 1834 select MIPS_L1_CACHE_SHIFT_6 1835 select SYS_SUPPORTS_SMP 1836 select SYS_SUPPORTS_HOTPLUG_CPU 1837 select CPU_HAS_RIXI 1838 1839config CPU_BMIPS5000 1840 bool 1841 select MIPS_CPU_SCACHE 1842 select MIPS_L1_CACHE_SHIFT_7 1843 select SYS_SUPPORTS_SMP 1844 select SYS_SUPPORTS_HOTPLUG_CPU 1845 select CPU_HAS_RIXI 1846 1847config SYS_HAS_CPU_LOONGSON3 1848 bool 1849 select CPU_SUPPORTS_CPUFREQ 1850 select CPU_HAS_RIXI 1851 1852config SYS_HAS_CPU_LOONGSON2E 1853 bool 1854 1855config SYS_HAS_CPU_LOONGSON2F 1856 bool 1857 select CPU_SUPPORTS_CPUFREQ 1858 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1859 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1860 1861config SYS_HAS_CPU_LOONGSON1B 1862 bool 1863 1864config SYS_HAS_CPU_MIPS32_R1 1865 bool 1866 1867config SYS_HAS_CPU_MIPS32_R2 1868 bool 1869 1870config SYS_HAS_CPU_MIPS32_R3_5 1871 bool 1872 1873config SYS_HAS_CPU_MIPS32_R5 1874 bool 1875 1876config SYS_HAS_CPU_MIPS32_R6 1877 bool 1878 1879config SYS_HAS_CPU_MIPS64_R1 1880 bool 1881 1882config SYS_HAS_CPU_MIPS64_R2 1883 bool 1884 1885config SYS_HAS_CPU_MIPS64_R6 1886 bool 1887 1888config SYS_HAS_CPU_R3000 1889 bool 1890 1891config SYS_HAS_CPU_TX39XX 1892 bool 1893 1894config SYS_HAS_CPU_VR41XX 1895 bool 1896 1897config SYS_HAS_CPU_R4300 1898 bool 1899 1900config SYS_HAS_CPU_R4X00 1901 bool 1902 1903config SYS_HAS_CPU_TX49XX 1904 bool 1905 1906config SYS_HAS_CPU_R5000 1907 bool 1908 1909config SYS_HAS_CPU_R5432 1910 bool 1911 1912config SYS_HAS_CPU_R5500 1913 bool 1914 1915config SYS_HAS_CPU_R6000 1916 bool 1917 1918config SYS_HAS_CPU_NEVADA 1919 bool 1920 1921config SYS_HAS_CPU_R8000 1922 bool 1923 1924config SYS_HAS_CPU_R10000 1925 bool 1926 1927config SYS_HAS_CPU_RM7000 1928 bool 1929 1930config SYS_HAS_CPU_SB1 1931 bool 1932 1933config SYS_HAS_CPU_CAVIUM_OCTEON 1934 bool 1935 1936config SYS_HAS_CPU_BMIPS 1937 bool 1938 1939config SYS_HAS_CPU_BMIPS32_3300 1940 bool 1941 select SYS_HAS_CPU_BMIPS 1942 1943config SYS_HAS_CPU_BMIPS4350 1944 bool 1945 select SYS_HAS_CPU_BMIPS 1946 1947config SYS_HAS_CPU_BMIPS4380 1948 bool 1949 select SYS_HAS_CPU_BMIPS 1950 1951config SYS_HAS_CPU_BMIPS5000 1952 bool 1953 select SYS_HAS_CPU_BMIPS 1954 1955config SYS_HAS_CPU_XLR 1956 bool 1957 1958config SYS_HAS_CPU_XLP 1959 bool 1960 1961config MIPS_MALTA_PM 1962 depends on MIPS_MALTA 1963 depends on PCI 1964 bool 1965 default y 1966 1967# 1968# CPU may reorder R->R, R->W, W->R, W->W 1969# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1970# 1971config WEAK_ORDERING 1972 bool 1973 1974# 1975# CPU may reorder reads and writes beyond LL/SC 1976# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1977# 1978config WEAK_REORDERING_BEYOND_LLSC 1979 bool 1980endmenu 1981 1982# 1983# These two indicate any level of the MIPS32 and MIPS64 architecture 1984# 1985config CPU_MIPS32 1986 bool 1987 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1988 1989config CPU_MIPS64 1990 bool 1991 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1992 1993# 1994# These two indicate the revision of the architecture, either Release 1 or Release 2 1995# 1996config CPU_MIPSR1 1997 bool 1998 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1999 2000config CPU_MIPSR2 2001 bool 2002 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2003 select CPU_HAS_RIXI 2004 select MIPS_SPRAM 2005 2006config CPU_MIPSR6 2007 bool 2008 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2009 select CPU_HAS_RIXI 2010 select HAVE_ARCH_BITREVERSE 2011 select MIPS_ASID_BITS_VARIABLE 2012 select MIPS_SPRAM 2013 2014config EVA 2015 bool 2016 2017config XPA 2018 bool 2019 2020config SYS_SUPPORTS_32BIT_KERNEL 2021 bool 2022config SYS_SUPPORTS_64BIT_KERNEL 2023 bool 2024config CPU_SUPPORTS_32BIT_KERNEL 2025 bool 2026config CPU_SUPPORTS_64BIT_KERNEL 2027 bool 2028config CPU_SUPPORTS_CPUFREQ 2029 bool 2030config CPU_SUPPORTS_ADDRWINCFG 2031 bool 2032config CPU_SUPPORTS_HUGEPAGES 2033 bool 2034config CPU_SUPPORTS_UNCACHED_ACCELERATED 2035 bool 2036config MIPS_PGD_C0_CONTEXT 2037 bool 2038 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2039 2040# 2041# Set to y for ptrace access to watch registers. 2042# 2043config HARDWARE_WATCHPOINTS 2044 bool 2045 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2046 2047menu "Kernel type" 2048 2049choice 2050 prompt "Kernel code model" 2051 help 2052 You should only select this option if you have a workload that 2053 actually benefits from 64-bit processing or if your machine has 2054 large memory. You will only be presented a single option in this 2055 menu if your system does not support both 32-bit and 64-bit kernels. 2056 2057config 32BIT 2058 bool "32-bit kernel" 2059 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2060 select TRAD_SIGNALS 2061 help 2062 Select this option if you want to build a 32-bit kernel. 2063 2064config 64BIT 2065 bool "64-bit kernel" 2066 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2067 help 2068 Select this option if you want to build a 64-bit kernel. 2069 2070endchoice 2071 2072config KVM_GUEST 2073 bool "KVM Guest Kernel" 2074 depends on BROKEN_ON_SMP 2075 help 2076 Select this option if building a guest kernel for KVM (Trap & Emulate) 2077 mode. 2078 2079config KVM_GUEST_TIMER_FREQ 2080 int "Count/Compare Timer Frequency (MHz)" 2081 depends on KVM_GUEST 2082 default 100 2083 help 2084 Set this to non-zero if building a guest kernel for KVM to skip RTC 2085 emulation when determining guest CPU Frequency. Instead, the guest's 2086 timer frequency is specified directly. 2087 2088config MIPS_VA_BITS_48 2089 bool "48 bits virtual memory" 2090 depends on 64BIT 2091 help 2092 Support a maximum at least 48 bits of application virtual memory. 2093 Default is 40 bits or less, depending on the CPU. 2094 This option result in a small memory overhead for page tables. 2095 This option is only supported with 16k and 64k page sizes. 2096 If unsure, say N. 2097 2098choice 2099 prompt "Kernel page size" 2100 default PAGE_SIZE_4KB 2101 2102config PAGE_SIZE_4KB 2103 bool "4kB" 2104 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2105 depends on !MIPS_VA_BITS_48 2106 help 2107 This option select the standard 4kB Linux page size. On some 2108 R3000-family processors this is the only available page size. Using 2109 4kB page size will minimize memory consumption and is therefore 2110 recommended for low memory systems. 2111 2112config PAGE_SIZE_8KB 2113 bool "8kB" 2114 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2115 depends on !MIPS_VA_BITS_48 2116 help 2117 Using 8kB page size will result in higher performance kernel at 2118 the price of higher memory consumption. This option is available 2119 only on R8000 and cnMIPS processors. Note that you will need a 2120 suitable Linux distribution to support this. 2121 2122config PAGE_SIZE_16KB 2123 bool "16kB" 2124 depends on !CPU_R3000 && !CPU_TX39XX 2125 help 2126 Using 16kB page size will result in higher performance kernel at 2127 the price of higher memory consumption. This option is available on 2128 all non-R3000 family processors. Note that you will need a suitable 2129 Linux distribution to support this. 2130 2131config PAGE_SIZE_32KB 2132 bool "32kB" 2133 depends on CPU_CAVIUM_OCTEON 2134 depends on !MIPS_VA_BITS_48 2135 help 2136 Using 32kB page size will result in higher performance kernel at 2137 the price of higher memory consumption. This option is available 2138 only on cnMIPS cores. Note that you will need a suitable Linux 2139 distribution to support this. 2140 2141config PAGE_SIZE_64KB 2142 bool "64kB" 2143 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2144 help 2145 Using 64kB page size will result in higher performance kernel at 2146 the price of higher memory consumption. This option is available on 2147 all non-R3000 family processor. Not that at the time of this 2148 writing this option is still high experimental. 2149 2150endchoice 2151 2152config FORCE_MAX_ZONEORDER 2153 int "Maximum zone order" 2154 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2155 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2156 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2157 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2158 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2159 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2160 range 11 64 2161 default "11" 2162 help 2163 The kernel memory allocator divides physically contiguous memory 2164 blocks into "zones", where each zone is a power of two number of 2165 pages. This option selects the largest power of two that the kernel 2166 keeps in the memory allocator. If you need to allocate very large 2167 blocks of physically contiguous memory, then you may need to 2168 increase this value. 2169 2170 This config option is actually maximum order plus one. For example, 2171 a value of 11 means that the largest free memory block is 2^10 pages. 2172 2173 The page size is not necessarily 4KB. Keep this in mind 2174 when choosing a value for this option. 2175 2176config BOARD_SCACHE 2177 bool 2178 2179config IP22_CPU_SCACHE 2180 bool 2181 select BOARD_SCACHE 2182 2183# 2184# Support for a MIPS32 / MIPS64 style S-caches 2185# 2186config MIPS_CPU_SCACHE 2187 bool 2188 select BOARD_SCACHE 2189 2190config R5000_CPU_SCACHE 2191 bool 2192 select BOARD_SCACHE 2193 2194config RM7000_CPU_SCACHE 2195 bool 2196 select BOARD_SCACHE 2197 2198config SIBYTE_DMA_PAGEOPS 2199 bool "Use DMA to clear/copy pages" 2200 depends on CPU_SB1 2201 help 2202 Instead of using the CPU to zero and copy pages, use a Data Mover 2203 channel. These DMA channels are otherwise unused by the standard 2204 SiByte Linux port. Seems to give a small performance benefit. 2205 2206config CPU_HAS_PREFETCH 2207 bool 2208 2209config CPU_GENERIC_DUMP_TLB 2210 bool 2211 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2212 2213config CPU_R4K_FPU 2214 bool 2215 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2216 2217config CPU_R4K_CACHE_TLB 2218 bool 2219 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2220 2221config MIPS_MT_SMP 2222 bool "MIPS MT SMP support (1 TC on each available VPE)" 2223 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2224 select CPU_MIPSR2_IRQ_VI 2225 select CPU_MIPSR2_IRQ_EI 2226 select SYNC_R4K 2227 select MIPS_MT 2228 select SMP 2229 select SMP_UP 2230 select SYS_SUPPORTS_SMP 2231 select SYS_SUPPORTS_SCHED_SMT 2232 select MIPS_PERF_SHARED_TC_COUNTERS 2233 help 2234 This is a kernel model which is known as SMVP. This is supported 2235 on cores with the MT ASE and uses the available VPEs to implement 2236 virtual processors which supports SMP. This is equivalent to the 2237 Intel Hyperthreading feature. For further information go to 2238 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2239 2240config MIPS_MT 2241 bool 2242 2243config SCHED_SMT 2244 bool "SMT (multithreading) scheduler support" 2245 depends on SYS_SUPPORTS_SCHED_SMT 2246 default n 2247 help 2248 SMT scheduler support improves the CPU scheduler's decision making 2249 when dealing with MIPS MT enabled cores at a cost of slightly 2250 increased overhead in some places. If unsure say N here. 2251 2252config SYS_SUPPORTS_SCHED_SMT 2253 bool 2254 2255config SYS_SUPPORTS_MULTITHREADING 2256 bool 2257 2258config MIPS_MT_FPAFF 2259 bool "Dynamic FPU affinity for FP-intensive threads" 2260 default y 2261 depends on MIPS_MT_SMP 2262 2263config MIPSR2_TO_R6_EMULATOR 2264 bool "MIPS R2-to-R6 emulator" 2265 depends on CPU_MIPSR6 && !SMP 2266 default y 2267 help 2268 Choose this option if you want to run non-R6 MIPS userland code. 2269 Even if you say 'Y' here, the emulator will still be disabled by 2270 default. You can enable it using the 'mipsr2emu' kernel option. 2271 The only reason this is a build-time option is to save ~14K from the 2272 final kernel image. 2273comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2274 depends on SMP && CPU_MIPSR6 2275 2276config MIPS_VPE_LOADER 2277 bool "VPE loader support." 2278 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2279 select CPU_MIPSR2_IRQ_VI 2280 select CPU_MIPSR2_IRQ_EI 2281 select MIPS_MT 2282 help 2283 Includes a loader for loading an elf relocatable object 2284 onto another VPE and running it. 2285 2286config MIPS_VPE_LOADER_CMP 2287 bool 2288 default "y" 2289 depends on MIPS_VPE_LOADER && MIPS_CMP 2290 2291config MIPS_VPE_LOADER_MT 2292 bool 2293 default "y" 2294 depends on MIPS_VPE_LOADER && !MIPS_CMP 2295 2296config MIPS_VPE_LOADER_TOM 2297 bool "Load VPE program into memory hidden from linux" 2298 depends on MIPS_VPE_LOADER 2299 default y 2300 help 2301 The loader can use memory that is present but has been hidden from 2302 Linux using the kernel command line option "mem=xxMB". It's up to 2303 you to ensure the amount you put in the option and the space your 2304 program requires is less or equal to the amount physically present. 2305 2306config MIPS_VPE_APSP_API 2307 bool "Enable support for AP/SP API (RTLX)" 2308 depends on MIPS_VPE_LOADER 2309 help 2310 2311config MIPS_VPE_APSP_API_CMP 2312 bool 2313 default "y" 2314 depends on MIPS_VPE_APSP_API && MIPS_CMP 2315 2316config MIPS_VPE_APSP_API_MT 2317 bool 2318 default "y" 2319 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2320 2321config MIPS_CMP 2322 bool "MIPS CMP framework support (DEPRECATED)" 2323 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2324 select SMP 2325 select SYNC_R4K 2326 select SYS_SUPPORTS_SMP 2327 select WEAK_ORDERING 2328 default n 2329 help 2330 Select this if you are using a bootloader which implements the "CMP 2331 framework" protocol (ie. YAMON) and want your kernel to make use of 2332 its ability to start secondary CPUs. 2333 2334 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2335 instead of this. 2336 2337config MIPS_CPS 2338 bool "MIPS Coherent Processing System support" 2339 depends on SYS_SUPPORTS_MIPS_CPS 2340 select MIPS_CM 2341 select MIPS_CPC 2342 select MIPS_CPS_PM if HOTPLUG_CPU 2343 select SMP 2344 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2345 select SYS_SUPPORTS_HOTPLUG_CPU 2346 select SYS_SUPPORTS_SMP 2347 select WEAK_ORDERING 2348 help 2349 Select this if you wish to run an SMP kernel across multiple cores 2350 within a MIPS Coherent Processing System. When this option is 2351 enabled the kernel will probe for other cores and boot them with 2352 no external assistance. It is safe to enable this when hardware 2353 support is unavailable. 2354 2355config MIPS_CPS_PM 2356 depends on MIPS_CPS 2357 select MIPS_CPC 2358 bool 2359 2360config MIPS_CM 2361 bool 2362 2363config MIPS_CPC 2364 bool 2365 2366config SB1_PASS_2_WORKAROUNDS 2367 bool 2368 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2369 default y 2370 2371config SB1_PASS_2_1_WORKAROUNDS 2372 bool 2373 depends on CPU_SB1 && CPU_SB1_PASS_2 2374 default y 2375 2376 2377config ARCH_PHYS_ADDR_T_64BIT 2378 bool 2379 2380choice 2381 prompt "SmartMIPS or microMIPS ASE support" 2382 2383config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2384 bool "None" 2385 help 2386 Select this if you want neither microMIPS nor SmartMIPS support 2387 2388config CPU_HAS_SMARTMIPS 2389 depends on SYS_SUPPORTS_SMARTMIPS 2390 bool "SmartMIPS" 2391 help 2392 SmartMIPS is a extension of the MIPS32 architecture aimed at 2393 increased security at both hardware and software level for 2394 smartcards. Enabling this option will allow proper use of the 2395 SmartMIPS instructions by Linux applications. However a kernel with 2396 this option will not work on a MIPS core without SmartMIPS core. If 2397 you don't know you probably don't have SmartMIPS and should say N 2398 here. 2399 2400config CPU_MICROMIPS 2401 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2402 bool "microMIPS" 2403 help 2404 When this option is enabled the kernel will be built using the 2405 microMIPS ISA 2406 2407endchoice 2408 2409config CPU_HAS_MSA 2410 bool "Support for the MIPS SIMD Architecture" 2411 depends on CPU_SUPPORTS_MSA 2412 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2413 help 2414 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2415 and a set of SIMD instructions to operate on them. When this option 2416 is enabled the kernel will support allocating & switching MSA 2417 vector register contexts. If you know that your kernel will only be 2418 running on CPUs which do not support MSA or that your userland will 2419 not be making use of it then you may wish to say N here to reduce 2420 the size & complexity of your kernel. 2421 2422 If unsure, say Y. 2423 2424config CPU_HAS_WB 2425 bool 2426 2427config XKS01 2428 bool 2429 2430config CPU_HAS_RIXI 2431 bool 2432 2433# 2434# Vectored interrupt mode is an R2 feature 2435# 2436config CPU_MIPSR2_IRQ_VI 2437 bool 2438 2439# 2440# Extended interrupt mode is an R2 feature 2441# 2442config CPU_MIPSR2_IRQ_EI 2443 bool 2444 2445config CPU_HAS_SYNC 2446 bool 2447 depends on !CPU_R3000 2448 default y 2449 2450# 2451# CPU non-features 2452# 2453config CPU_DADDI_WORKAROUNDS 2454 bool 2455 2456config CPU_R4000_WORKAROUNDS 2457 bool 2458 select CPU_R4400_WORKAROUNDS 2459 2460config CPU_R4400_WORKAROUNDS 2461 bool 2462 2463config MIPS_ASID_SHIFT 2464 int 2465 default 6 if CPU_R3000 || CPU_TX39XX 2466 default 4 if CPU_R8000 2467 default 0 2468 2469config MIPS_ASID_BITS 2470 int 2471 default 0 if MIPS_ASID_BITS_VARIABLE 2472 default 6 if CPU_R3000 || CPU_TX39XX 2473 default 8 2474 2475config MIPS_ASID_BITS_VARIABLE 2476 bool 2477 2478# 2479# - Highmem only makes sense for the 32-bit kernel. 2480# - The current highmem code will only work properly on physically indexed 2481# caches such as R3000, SB1, R7000 or those that look like they're virtually 2482# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2483# moment we protect the user and offer the highmem option only on machines 2484# where it's known to be safe. This will not offer highmem on a few systems 2485# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2486# indexed CPUs but we're playing safe. 2487# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2488# know they might have memory configurations that could make use of highmem 2489# support. 2490# 2491config HIGHMEM 2492 bool "High Memory Support" 2493 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2494 2495config CPU_SUPPORTS_HIGHMEM 2496 bool 2497 2498config SYS_SUPPORTS_HIGHMEM 2499 bool 2500 2501config SYS_SUPPORTS_SMARTMIPS 2502 bool 2503 2504config SYS_SUPPORTS_MICROMIPS 2505 bool 2506 2507config SYS_SUPPORTS_MIPS16 2508 bool 2509 help 2510 This option must be set if a kernel might be executed on a MIPS16- 2511 enabled CPU even if MIPS16 is not actually being used. In other 2512 words, it makes the kernel MIPS16-tolerant. 2513 2514config CPU_SUPPORTS_MSA 2515 bool 2516 2517config ARCH_FLATMEM_ENABLE 2518 def_bool y 2519 depends on !NUMA && !CPU_LOONGSON2 2520 2521config ARCH_DISCONTIGMEM_ENABLE 2522 bool 2523 default y if SGI_IP27 2524 help 2525 Say Y to support efficient handling of discontiguous physical memory, 2526 for architectures which are either NUMA (Non-Uniform Memory Access) 2527 or have huge holes in the physical address space for other reasons. 2528 See <file:Documentation/vm/numa> for more. 2529 2530config ARCH_SPARSEMEM_ENABLE 2531 bool 2532 select SPARSEMEM_STATIC 2533 2534config NUMA 2535 bool "NUMA Support" 2536 depends on SYS_SUPPORTS_NUMA 2537 help 2538 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2539 Access). This option improves performance on systems with more 2540 than two nodes; on two node systems it is generally better to 2541 leave it disabled; on single node systems disable this option 2542 disabled. 2543 2544config SYS_SUPPORTS_NUMA 2545 bool 2546 2547config RELOCATABLE 2548 bool "Relocatable kernel" 2549 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2550 help 2551 This builds a kernel image that retains relocation information 2552 so it can be loaded someplace besides the default 1MB. 2553 The relocations make the kernel binary about 15% larger, 2554 but are discarded at runtime 2555 2556config RELOCATION_TABLE_SIZE 2557 hex "Relocation table size" 2558 depends on RELOCATABLE 2559 range 0x0 0x01000000 2560 default "0x00100000" 2561 ---help--- 2562 A table of relocation data will be appended to the kernel binary 2563 and parsed at boot to fix up the relocated kernel. 2564 2565 This option allows the amount of space reserved for the table to be 2566 adjusted, although the default of 1Mb should be ok in most cases. 2567 2568 The build will fail and a valid size suggested if this is too small. 2569 2570 If unsure, leave at the default value. 2571 2572config RANDOMIZE_BASE 2573 bool "Randomize the address of the kernel image" 2574 depends on RELOCATABLE 2575 ---help--- 2576 Randomizes the physical and virtual address at which the 2577 kernel image is loaded, as a security feature that 2578 deters exploit attempts relying on knowledge of the location 2579 of kernel internals. 2580 2581 Entropy is generated using any coprocessor 0 registers available. 2582 2583 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2584 2585 If unsure, say N. 2586 2587config RANDOMIZE_BASE_MAX_OFFSET 2588 hex "Maximum kASLR offset" if EXPERT 2589 depends on RANDOMIZE_BASE 2590 range 0x0 0x40000000 if EVA || 64BIT 2591 range 0x0 0x08000000 2592 default "0x01000000" 2593 ---help--- 2594 When kASLR is active, this provides the maximum offset that will 2595 be applied to the kernel image. It should be set according to the 2596 amount of physical RAM available in the target system minus 2597 PHYSICAL_START and must be a power of 2. 2598 2599 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2600 EVA or 64-bit. The default is 16Mb. 2601 2602config NODES_SHIFT 2603 int 2604 default "6" 2605 depends on NEED_MULTIPLE_NODES 2606 2607config HW_PERF_EVENTS 2608 bool "Enable hardware performance counter support for perf events" 2609 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2610 default y 2611 help 2612 Enable hardware performance counter support for perf events. If 2613 disabled, perf events will use software events only. 2614 2615source "mm/Kconfig" 2616 2617config SMP 2618 bool "Multi-Processing support" 2619 depends on SYS_SUPPORTS_SMP 2620 help 2621 This enables support for systems with more than one CPU. If you have 2622 a system with only one CPU, say N. If you have a system with more 2623 than one CPU, say Y. 2624 2625 If you say N here, the kernel will run on uni- and multiprocessor 2626 machines, but will use only one CPU of a multiprocessor machine. If 2627 you say Y here, the kernel will run on many, but not all, 2628 uniprocessor machines. On a uniprocessor machine, the kernel 2629 will run faster if you say N here. 2630 2631 People using multiprocessor machines who say Y here should also say 2632 Y to "Enhanced Real Time Clock Support", below. 2633 2634 See also the SMP-HOWTO available at 2635 <http://www.tldp.org/docs.html#howto>. 2636 2637 If you don't know what to do here, say N. 2638 2639config SMP_UP 2640 bool 2641 2642config SYS_SUPPORTS_MIPS_CMP 2643 bool 2644 2645config SYS_SUPPORTS_MIPS_CPS 2646 bool 2647 2648config SYS_SUPPORTS_SMP 2649 bool 2650 2651config NR_CPUS_DEFAULT_4 2652 bool 2653 2654config NR_CPUS_DEFAULT_8 2655 bool 2656 2657config NR_CPUS_DEFAULT_16 2658 bool 2659 2660config NR_CPUS_DEFAULT_32 2661 bool 2662 2663config NR_CPUS_DEFAULT_64 2664 bool 2665 2666config NR_CPUS 2667 int "Maximum number of CPUs (2-256)" 2668 range 2 256 2669 depends on SMP 2670 default "4" if NR_CPUS_DEFAULT_4 2671 default "8" if NR_CPUS_DEFAULT_8 2672 default "16" if NR_CPUS_DEFAULT_16 2673 default "32" if NR_CPUS_DEFAULT_32 2674 default "64" if NR_CPUS_DEFAULT_64 2675 help 2676 This allows you to specify the maximum number of CPUs which this 2677 kernel will support. The maximum supported value is 32 for 32-bit 2678 kernel and 64 for 64-bit kernels; the minimum value which makes 2679 sense is 1 for Qemu (useful only for kernel debugging purposes) 2680 and 2 for all others. 2681 2682 This is purely to save memory - each supported CPU adds 2683 approximately eight kilobytes to the kernel image. For best 2684 performance should round up your number of processors to the next 2685 power of two. 2686 2687config MIPS_PERF_SHARED_TC_COUNTERS 2688 bool 2689 2690# 2691# Timer Interrupt Frequency Configuration 2692# 2693 2694choice 2695 prompt "Timer frequency" 2696 default HZ_250 2697 help 2698 Allows the configuration of the timer frequency. 2699 2700 config HZ_24 2701 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2702 2703 config HZ_48 2704 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2705 2706 config HZ_100 2707 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2708 2709 config HZ_128 2710 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2711 2712 config HZ_250 2713 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2714 2715 config HZ_256 2716 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2717 2718 config HZ_1000 2719 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2720 2721 config HZ_1024 2722 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2723 2724endchoice 2725 2726config SYS_SUPPORTS_24HZ 2727 bool 2728 2729config SYS_SUPPORTS_48HZ 2730 bool 2731 2732config SYS_SUPPORTS_100HZ 2733 bool 2734 2735config SYS_SUPPORTS_128HZ 2736 bool 2737 2738config SYS_SUPPORTS_250HZ 2739 bool 2740 2741config SYS_SUPPORTS_256HZ 2742 bool 2743 2744config SYS_SUPPORTS_1000HZ 2745 bool 2746 2747config SYS_SUPPORTS_1024HZ 2748 bool 2749 2750config SYS_SUPPORTS_ARBIT_HZ 2751 bool 2752 default y if !SYS_SUPPORTS_24HZ && \ 2753 !SYS_SUPPORTS_48HZ && \ 2754 !SYS_SUPPORTS_100HZ && \ 2755 !SYS_SUPPORTS_128HZ && \ 2756 !SYS_SUPPORTS_250HZ && \ 2757 !SYS_SUPPORTS_256HZ && \ 2758 !SYS_SUPPORTS_1000HZ && \ 2759 !SYS_SUPPORTS_1024HZ 2760 2761config HZ 2762 int 2763 default 24 if HZ_24 2764 default 48 if HZ_48 2765 default 100 if HZ_100 2766 default 128 if HZ_128 2767 default 250 if HZ_250 2768 default 256 if HZ_256 2769 default 1000 if HZ_1000 2770 default 1024 if HZ_1024 2771 2772config SCHED_HRTICK 2773 def_bool HIGH_RES_TIMERS 2774 2775source "kernel/Kconfig.preempt" 2776 2777config KEXEC 2778 bool "Kexec system call" 2779 select KEXEC_CORE 2780 help 2781 kexec is a system call that implements the ability to shutdown your 2782 current kernel, and to start another kernel. It is like a reboot 2783 but it is independent of the system firmware. And like a reboot 2784 you can start any kernel with it, not just Linux. 2785 2786 The name comes from the similarity to the exec system call. 2787 2788 It is an ongoing process to be certain the hardware in a machine 2789 is properly shutdown, so do not be surprised if this code does not 2790 initially work for you. As of this writing the exact hardware 2791 interface is strongly in flux, so no good recommendation can be 2792 made. 2793 2794config CRASH_DUMP 2795 bool "Kernel crash dumps" 2796 help 2797 Generate crash dump after being started by kexec. 2798 This should be normally only set in special crash dump kernels 2799 which are loaded in the main kernel with kexec-tools into 2800 a specially reserved region and then later executed after 2801 a crash by kdump/kexec. The crash dump kernel must be compiled 2802 to a memory address not used by the main kernel or firmware using 2803 PHYSICAL_START. 2804 2805config PHYSICAL_START 2806 hex "Physical address where the kernel is loaded" 2807 default "0xffffffff84000000" if 64BIT 2808 default "0x84000000" if 32BIT 2809 depends on CRASH_DUMP 2810 help 2811 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2812 If you plan to use kernel for capturing the crash dump change 2813 this value to start of the reserved region (the "X" value as 2814 specified in the "crashkernel=YM@XM" command line boot parameter 2815 passed to the panic-ed kernel). 2816 2817config SECCOMP 2818 bool "Enable seccomp to safely compute untrusted bytecode" 2819 depends on PROC_FS 2820 default y 2821 help 2822 This kernel feature is useful for number crunching applications 2823 that may need to compute untrusted bytecode during their 2824 execution. By using pipes or other transports made available to 2825 the process as file descriptors supporting the read/write 2826 syscalls, it's possible to isolate those applications in 2827 their own address space using seccomp. Once seccomp is 2828 enabled via /proc/<pid>/seccomp, it cannot be disabled 2829 and the task is only allowed to execute a few safe syscalls 2830 defined by each seccomp mode. 2831 2832 If unsure, say Y. Only embedded should say N here. 2833 2834config MIPS_O32_FP64_SUPPORT 2835 bool "Support for O32 binaries using 64-bit FP" 2836 depends on 32BIT || MIPS32_O32 2837 help 2838 When this is enabled, the kernel will support use of 64-bit floating 2839 point registers with binaries using the O32 ABI along with the 2840 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2841 32-bit MIPS systems this support is at the cost of increasing the 2842 size and complexity of the compiled FPU emulator. Thus if you are 2843 running a MIPS32 system and know that none of your userland binaries 2844 will require 64-bit floating point, you may wish to reduce the size 2845 of your kernel & potentially improve FP emulation performance by 2846 saying N here. 2847 2848 Although binutils currently supports use of this flag the details 2849 concerning its effect upon the O32 ABI in userland are still being 2850 worked on. In order to avoid userland becoming dependant upon current 2851 behaviour before the details have been finalised, this option should 2852 be considered experimental and only enabled by those working upon 2853 said details. 2854 2855 If unsure, say N. 2856 2857config USE_OF 2858 bool 2859 select OF 2860 select OF_EARLY_FLATTREE 2861 select IRQ_DOMAIN 2862 2863config BUILTIN_DTB 2864 bool 2865 2866choice 2867 prompt "Kernel appended dtb support" if USE_OF 2868 default MIPS_NO_APPENDED_DTB 2869 2870 config MIPS_NO_APPENDED_DTB 2871 bool "None" 2872 help 2873 Do not enable appended dtb support. 2874 2875 config MIPS_ELF_APPENDED_DTB 2876 bool "vmlinux" 2877 help 2878 With this option, the boot code will look for a device tree binary 2879 DTB) included in the vmlinux ELF section .appended_dtb. By default 2880 it is empty and the DTB can be appended using binutils command 2881 objcopy: 2882 2883 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2884 2885 This is meant as a backward compatiblity convenience for those 2886 systems with a bootloader that can't be upgraded to accommodate 2887 the documented boot protocol using a device tree. 2888 2889 config MIPS_RAW_APPENDED_DTB 2890 bool "vmlinux.bin" 2891 help 2892 With this option, the boot code will look for a device tree binary 2893 DTB) appended to raw vmlinux.bin (without decompressor). 2894 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2895 2896 This is meant as a backward compatibility convenience for those 2897 systems with a bootloader that can't be upgraded to accommodate 2898 the documented boot protocol using a device tree. 2899 2900 Beware that there is very little in terms of protection against 2901 this option being confused by leftover garbage in memory that might 2902 look like a DTB header after a reboot if no actual DTB is appended 2903 to vmlinux.bin. Do not leave this option active in a production kernel 2904 if you don't intend to always append a DTB. 2905 2906 config MIPS_ZBOOT_APPENDED_DTB 2907 bool "vmlinuz.bin" 2908 depends on SYS_SUPPORTS_ZBOOT 2909 help 2910 With this option, the boot code will look for a device tree binary 2911 DTB) appended to raw vmlinuz.bin (with decompressor). 2912 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb). 2913 2914 This is meant as a backward compatibility convenience for those 2915 systems with a bootloader that can't be upgraded to accommodate 2916 the documented boot protocol using a device tree. 2917 2918 Beware that there is very little in terms of protection against 2919 this option being confused by leftover garbage in memory that might 2920 look like a DTB header after a reboot if no actual DTB is appended 2921 to vmlinuz.bin. Do not leave this option active in a production kernel 2922 if you don't intend to always append a DTB. 2923endchoice 2924 2925choice 2926 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2927 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2928 !MIPS_MALTA && !MIPS_SEAD3 && \ 2929 !CAVIUM_OCTEON_SOC 2930 default MIPS_CMDLINE_FROM_BOOTLOADER 2931 2932 config MIPS_CMDLINE_FROM_DTB 2933 depends on USE_OF 2934 bool "Dtb kernel arguments if available" 2935 2936 config MIPS_CMDLINE_DTB_EXTEND 2937 depends on USE_OF 2938 bool "Extend dtb kernel arguments with bootloader arguments" 2939 2940 config MIPS_CMDLINE_FROM_BOOTLOADER 2941 bool "Bootloader kernel arguments if available" 2942 2943 config MIPS_CMDLINE_BUILTIN_EXTEND 2944 depends on CMDLINE_BOOL 2945 bool "Extend builtin kernel arguments with bootloader arguments" 2946endchoice 2947 2948endmenu 2949 2950config LOCKDEP_SUPPORT 2951 bool 2952 default y 2953 2954config STACKTRACE_SUPPORT 2955 bool 2956 default y 2957 2958config HAVE_LATENCYTOP_SUPPORT 2959 bool 2960 default y 2961 2962config PGTABLE_LEVELS 2963 int 2964 default 3 if 64BIT && !PAGE_SIZE_64KB 2965 default 2 2966 2967source "init/Kconfig" 2968 2969source "kernel/Kconfig.freezer" 2970 2971menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2972 2973config HW_HAS_EISA 2974 bool 2975config HW_HAS_PCI 2976 bool 2977 2978config PCI 2979 bool "Support for PCI controller" 2980 depends on HW_HAS_PCI 2981 select PCI_DOMAINS 2982 select NO_GENERIC_PCI_IOPORT_MAP 2983 help 2984 Find out whether you have a PCI motherboard. PCI is the name of a 2985 bus system, i.e. the way the CPU talks to the other stuff inside 2986 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2987 say Y, otherwise N. 2988 2989config HT_PCI 2990 bool "Support for HT-linked PCI" 2991 default y 2992 depends on CPU_LOONGSON3 2993 select PCI 2994 select PCI_DOMAINS 2995 help 2996 Loongson family machines use Hyper-Transport bus for inter-core 2997 connection and device connection. The PCI bus is a subordinate 2998 linked at HT. Choose Y for Loongson-3 based machines. 2999 3000config PCI_DOMAINS 3001 bool 3002 3003source "drivers/pci/Kconfig" 3004 3005# 3006# ISA support is now enabled via select. Too many systems still have the one 3007# or other ISA chip on the board that users don't know about so don't expect 3008# users to choose the right thing ... 3009# 3010config ISA 3011 bool 3012 3013config EISA 3014 bool "EISA support" 3015 depends on HW_HAS_EISA 3016 select ISA 3017 select GENERIC_ISA_DMA 3018 ---help--- 3019 The Extended Industry Standard Architecture (EISA) bus was 3020 developed as an open alternative to the IBM MicroChannel bus. 3021 3022 The EISA bus provided some of the features of the IBM MicroChannel 3023 bus while maintaining backward compatibility with cards made for 3024 the older ISA bus. The EISA bus saw limited use between 1988 and 3025 1995 when it was made obsolete by the PCI bus. 3026 3027 Say Y here if you are building a kernel for an EISA-based machine. 3028 3029 Otherwise, say N. 3030 3031source "drivers/eisa/Kconfig" 3032 3033config TC 3034 bool "TURBOchannel support" 3035 depends on MACH_DECSTATION 3036 help 3037 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3038 processors. TURBOchannel programming specifications are available 3039 at: 3040 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3041 and: 3042 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3043 Linux driver support status is documented at: 3044 <http://www.linux-mips.org/wiki/DECstation> 3045 3046config MMU 3047 bool 3048 default y 3049 3050config I8253 3051 bool 3052 select CLKSRC_I8253 3053 select CLKEVT_I8253 3054 select MIPS_EXTERNAL_TIMER 3055 3056config ZONE_DMA 3057 bool 3058 3059config ZONE_DMA32 3060 bool 3061 3062source "drivers/pcmcia/Kconfig" 3063 3064config RAPIDIO 3065 tristate "RapidIO support" 3066 depends on PCI 3067 default n 3068 help 3069 If you say Y here, the kernel will include drivers and 3070 infrastructure code to support RapidIO interconnect devices. 3071 3072source "drivers/rapidio/Kconfig" 3073 3074endmenu 3075 3076menu "Executable file formats" 3077 3078source "fs/Kconfig.binfmt" 3079 3080config TRAD_SIGNALS 3081 bool 3082 3083config MIPS32_COMPAT 3084 bool 3085 3086config COMPAT 3087 bool 3088 3089config SYSVIPC_COMPAT 3090 bool 3091 3092config MIPS32_O32 3093 bool "Kernel support for o32 binaries" 3094 depends on 64BIT 3095 select ARCH_WANT_OLD_COMPAT_IPC 3096 select COMPAT 3097 select MIPS32_COMPAT 3098 select SYSVIPC_COMPAT if SYSVIPC 3099 help 3100 Select this option if you want to run o32 binaries. These are pure 3101 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3102 existing binaries are in this format. 3103 3104 If unsure, say Y. 3105 3106config MIPS32_N32 3107 bool "Kernel support for n32 binaries" 3108 depends on 64BIT 3109 select COMPAT 3110 select MIPS32_COMPAT 3111 select SYSVIPC_COMPAT if SYSVIPC 3112 help 3113 Select this option if you want to run n32 binaries. These are 3114 64-bit binaries using 32-bit quantities for addressing and certain 3115 data that would normally be 64-bit. They are used in special 3116 cases. 3117 3118 If unsure, say N. 3119 3120config BINFMT_ELF32 3121 bool 3122 default y if MIPS32_O32 || MIPS32_N32 3123 select ELFCORE 3124 3125endmenu 3126 3127menu "Power management options" 3128 3129config ARCH_HIBERNATION_POSSIBLE 3130 def_bool y 3131 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3132 3133config ARCH_SUSPEND_POSSIBLE 3134 def_bool y 3135 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3136 3137source "kernel/power/Kconfig" 3138 3139endmenu 3140 3141config MIPS_EXTERNAL_TIMER 3142 bool 3143 3144menu "CPU Power Management" 3145 3146if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3147source "drivers/cpufreq/Kconfig" 3148endif 3149 3150source "drivers/cpuidle/Kconfig" 3151 3152endmenu 3153 3154source "net/Kconfig" 3155 3156source "drivers/Kconfig" 3157 3158source "drivers/firmware/Kconfig" 3159 3160source "fs/Kconfig" 3161 3162source "arch/mips/Kconfig.debug" 3163 3164source "security/Kconfig" 3165 3166source "crypto/Kconfig" 3167 3168source "lib/Kconfig" 3169 3170source "arch/mips/kvm/Kconfig" 3171