1config MIPS 2 bool 3 default y 4 select ARCH_MIGHT_HAVE_PC_PARPORT 5 select ARCH_MIGHT_HAVE_PC_SERIO 6 select HAVE_CONTEXT_TRACKING 7 select HAVE_GENERIC_DMA_COHERENT 8 select HAVE_IDE 9 select HAVE_OPROFILE 10 select HAVE_PERF_EVENTS 11 select PERF_USE_VMALLOC 12 select HAVE_ARCH_KGDB 13 select HAVE_ARCH_SECCOMP_FILTER 14 select HAVE_ARCH_TRACEHOOK 15 select HAVE_BPF_JIT if !CPU_MICROMIPS 16 select ARCH_HAVE_CUSTOM_GPIO_H 17 select HAVE_FUNCTION_TRACER 18 select HAVE_DYNAMIC_FTRACE 19 select HAVE_FTRACE_MCOUNT_RECORD 20 select HAVE_C_RECORDMCOUNT 21 select HAVE_FUNCTION_GRAPH_TRACER 22 select HAVE_KPROBES 23 select HAVE_KRETPROBES 24 select HAVE_DEBUG_KMEMLEAK 25 select HAVE_SYSCALL_TRACEPOINTS 26 select ARCH_HAS_ELF_RANDOMIZE 27 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 28 select RTC_LIB if !MACH_LOONGSON 29 select GENERIC_ATOMIC64 if !64BIT 30 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 31 select HAVE_DMA_ATTRS 32 select HAVE_DMA_CONTIGUOUS 33 select HAVE_DMA_API_DEBUG 34 select GENERIC_IRQ_PROBE 35 select GENERIC_IRQ_SHOW 36 select GENERIC_PCI_IOMAP 37 select HAVE_ARCH_JUMP_LABEL 38 select ARCH_WANT_IPC_PARSE_VERSION 39 select IRQ_FORCED_THREADING 40 select HAVE_MEMBLOCK 41 select HAVE_MEMBLOCK_NODE_MAP 42 select ARCH_DISCARD_MEMBLOCK 43 select GENERIC_SMP_IDLE_THREAD 44 select BUILDTIME_EXTABLE_SORT 45 select GENERIC_CLOCKEVENTS 46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 47 select GENERIC_CMOS_UPDATE 48 select HAVE_MOD_ARCH_SPECIFIC 49 select VIRT_TO_BUS 50 select MODULES_USE_ELF_REL if MODULES 51 select MODULES_USE_ELF_RELA if MODULES && 64BIT 52 select CLONE_BACKWARDS 53 select HAVE_DEBUG_STACKOVERFLOW 54 select HAVE_CC_STACKPROTECTOR 55 select CPU_PM if CPU_IDLE 56 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 57 select ARCH_BINFMT_ELF_STATE 58 select SYSCTL_EXCEPTION_TRACE 59 select HAVE_VIRT_CPU_ACCOUNTING_GEN 60 select HAVE_IRQ_TIME_ACCOUNTING 61 62menu "Machine selection" 63 64choice 65 prompt "System type" 66 default SGI_IP22 67 68config MIPS_ALCHEMY 69 bool "Alchemy processor based machines" 70 select ARCH_PHYS_ADDR_T_64BIT 71 select CEVT_R4K 72 select CSRC_R4K 73 select IRQ_CPU 74 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 75 select SYS_HAS_CPU_MIPS32_R1 76 select SYS_SUPPORTS_32BIT_KERNEL 77 select SYS_SUPPORTS_APM_EMULATION 78 select ARCH_REQUIRE_GPIOLIB 79 select SYS_SUPPORTS_ZBOOT 80 select COMMON_CLK 81 82config AR7 83 bool "Texas Instruments AR7" 84 select BOOT_ELF32 85 select DMA_NONCOHERENT 86 select CEVT_R4K 87 select CSRC_R4K 88 select IRQ_CPU 89 select NO_EXCEPT_FILL 90 select SWAP_IO_SPACE 91 select SYS_HAS_CPU_MIPS32_R1 92 select SYS_HAS_EARLY_PRINTK 93 select SYS_SUPPORTS_32BIT_KERNEL 94 select SYS_SUPPORTS_LITTLE_ENDIAN 95 select SYS_SUPPORTS_MIPS16 96 select SYS_SUPPORTS_ZBOOT_UART16550 97 select ARCH_REQUIRE_GPIOLIB 98 select VLYNQ 99 select HAVE_CLK 100 help 101 Support for the Texas Instruments AR7 System-on-a-Chip 102 family: TNETD7100, 7200 and 7300. 103 104config ATH25 105 bool "Atheros AR231x/AR531x SoC support" 106 select CEVT_R4K 107 select CSRC_R4K 108 select DMA_NONCOHERENT 109 select IRQ_CPU 110 select IRQ_DOMAIN 111 select SYS_HAS_CPU_MIPS32_R1 112 select SYS_SUPPORTS_BIG_ENDIAN 113 select SYS_SUPPORTS_32BIT_KERNEL 114 select SYS_HAS_EARLY_PRINTK 115 help 116 Support for Atheros AR231x and Atheros AR531x based boards 117 118config ATH79 119 bool "Atheros AR71XX/AR724X/AR913X based boards" 120 select ARCH_REQUIRE_GPIOLIB 121 select BOOT_RAW 122 select CEVT_R4K 123 select CSRC_R4K 124 select DMA_NONCOHERENT 125 select HAVE_CLK 126 select CLKDEV_LOOKUP 127 select IRQ_CPU 128 select MIPS_MACHINE 129 select SYS_HAS_CPU_MIPS32_R2 130 select SYS_HAS_EARLY_PRINTK 131 select SYS_SUPPORTS_32BIT_KERNEL 132 select SYS_SUPPORTS_BIG_ENDIAN 133 select SYS_SUPPORTS_MIPS16 134 help 135 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 136 137config BMIPS_GENERIC 138 bool "Broadcom Generic BMIPS kernel" 139 select BOOT_RAW 140 select NO_EXCEPT_FILL 141 select USE_OF 142 select CEVT_R4K 143 select CSRC_R4K 144 select SYNC_R4K 145 select COMMON_CLK 146 select BCM7038_L1_IRQ 147 select BCM7120_L2_IRQ 148 select BRCMSTB_L2_IRQ 149 select IRQ_CPU 150 select RAW_IRQ_ACCESSORS 151 select DMA_NONCOHERENT 152 select SYS_SUPPORTS_32BIT_KERNEL 153 select SYS_SUPPORTS_LITTLE_ENDIAN 154 select SYS_SUPPORTS_BIG_ENDIAN 155 select SYS_SUPPORTS_HIGHMEM 156 select SYS_HAS_CPU_BMIPS32_3300 157 select SYS_HAS_CPU_BMIPS4350 158 select SYS_HAS_CPU_BMIPS4380 159 select SYS_HAS_CPU_BMIPS5000 160 select SWAP_IO_SPACE 161 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 162 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 163 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 164 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 165 help 166 Build a generic DT-based kernel image that boots on select 167 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 168 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 169 must be set appropriately for your board. 170 171config BCM47XX 172 bool "Broadcom BCM47XX based boards" 173 select ARCH_WANT_OPTIONAL_GPIOLIB 174 select BOOT_RAW 175 select CEVT_R4K 176 select CSRC_R4K 177 select DMA_NONCOHERENT 178 select HW_HAS_PCI 179 select IRQ_CPU 180 select SYS_HAS_CPU_MIPS32_R1 181 select NO_EXCEPT_FILL 182 select SYS_SUPPORTS_32BIT_KERNEL 183 select SYS_SUPPORTS_LITTLE_ENDIAN 184 select SYS_SUPPORTS_MIPS16 185 select SYS_HAS_EARLY_PRINTK 186 select USE_GENERIC_EARLY_PRINTK_8250 187 select GPIOLIB 188 select LEDS_GPIO_REGISTER 189 help 190 Support for BCM47XX based boards 191 192config BCM63XX 193 bool "Broadcom BCM63XX based boards" 194 select BOOT_RAW 195 select CEVT_R4K 196 select CSRC_R4K 197 select SYNC_R4K 198 select DMA_NONCOHERENT 199 select IRQ_CPU 200 select SYS_SUPPORTS_32BIT_KERNEL 201 select SYS_SUPPORTS_BIG_ENDIAN 202 select SYS_HAS_EARLY_PRINTK 203 select SWAP_IO_SPACE 204 select ARCH_REQUIRE_GPIOLIB 205 select HAVE_CLK 206 select MIPS_L1_CACHE_SHIFT_4 207 help 208 Support for BCM63XX based boards 209 210config MIPS_COBALT 211 bool "Cobalt Server" 212 select CEVT_R4K 213 select CSRC_R4K 214 select CEVT_GT641XX 215 select DMA_NONCOHERENT 216 select HW_HAS_PCI 217 select I8253 218 select I8259 219 select IRQ_CPU 220 select IRQ_GT641XX 221 select PCI_GT64XXX_PCI0 222 select PCI 223 select SYS_HAS_CPU_NEVADA 224 select SYS_HAS_EARLY_PRINTK 225 select SYS_SUPPORTS_32BIT_KERNEL 226 select SYS_SUPPORTS_64BIT_KERNEL 227 select SYS_SUPPORTS_LITTLE_ENDIAN 228 select USE_GENERIC_EARLY_PRINTK_8250 229 230config MACH_DECSTATION 231 bool "DECstations" 232 select BOOT_ELF32 233 select CEVT_DS1287 234 select CEVT_R4K if CPU_R4X00 235 select CSRC_IOASIC 236 select CSRC_R4K if CPU_R4X00 237 select CPU_DADDI_WORKAROUNDS if 64BIT 238 select CPU_R4000_WORKAROUNDS if 64BIT 239 select CPU_R4400_WORKAROUNDS if 64BIT 240 select DMA_NONCOHERENT 241 select NO_IOPORT_MAP 242 select IRQ_CPU 243 select SYS_HAS_CPU_R3000 244 select SYS_HAS_CPU_R4X00 245 select SYS_SUPPORTS_32BIT_KERNEL 246 select SYS_SUPPORTS_64BIT_KERNEL 247 select SYS_SUPPORTS_LITTLE_ENDIAN 248 select SYS_SUPPORTS_128HZ 249 select SYS_SUPPORTS_256HZ 250 select SYS_SUPPORTS_1024HZ 251 select MIPS_L1_CACHE_SHIFT_4 252 help 253 This enables support for DEC's MIPS based workstations. For details 254 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 255 DECstation porting pages on <http://decstation.unix-ag.org/>. 256 257 If you have one of the following DECstation Models you definitely 258 want to choose R4xx0 for the CPU Type: 259 260 DECstation 5000/50 261 DECstation 5000/150 262 DECstation 5000/260 263 DECsystem 5900/260 264 265 otherwise choose R3000. 266 267config MACH_JAZZ 268 bool "Jazz family of machines" 269 select FW_ARC 270 select FW_ARC32 271 select ARCH_MAY_HAVE_PC_FDC 272 select CEVT_R4K 273 select CSRC_R4K 274 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 275 select GENERIC_ISA_DMA 276 select HAVE_PCSPKR_PLATFORM 277 select IRQ_CPU 278 select I8253 279 select I8259 280 select ISA 281 select SYS_HAS_CPU_R4X00 282 select SYS_SUPPORTS_32BIT_KERNEL 283 select SYS_SUPPORTS_64BIT_KERNEL 284 select SYS_SUPPORTS_100HZ 285 help 286 This a family of machines based on the MIPS R4030 chipset which was 287 used by several vendors to build RISC/os and Windows NT workstations. 288 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 289 Olivetti M700-10 workstations. 290 291config MACH_JZ4740 292 bool "Ingenic JZ4740 based machines" 293 select SYS_HAS_CPU_MIPS32_R1 294 select SYS_SUPPORTS_32BIT_KERNEL 295 select SYS_SUPPORTS_LITTLE_ENDIAN 296 select SYS_SUPPORTS_ZBOOT_UART16550 297 select DMA_NONCOHERENT 298 select IRQ_CPU 299 select ARCH_REQUIRE_GPIOLIB 300 select SYS_HAS_EARLY_PRINTK 301 select HAVE_CLK 302 select GENERIC_IRQ_CHIP 303 304config LANTIQ 305 bool "Lantiq based platforms" 306 select DMA_NONCOHERENT 307 select IRQ_CPU 308 select CEVT_R4K 309 select CSRC_R4K 310 select SYS_HAS_CPU_MIPS32_R1 311 select SYS_HAS_CPU_MIPS32_R2 312 select SYS_SUPPORTS_BIG_ENDIAN 313 select SYS_SUPPORTS_32BIT_KERNEL 314 select SYS_SUPPORTS_MIPS16 315 select SYS_SUPPORTS_MULTITHREADING 316 select SYS_HAS_EARLY_PRINTK 317 select ARCH_REQUIRE_GPIOLIB 318 select SWAP_IO_SPACE 319 select BOOT_RAW 320 select HAVE_MACH_CLKDEV 321 select CLKDEV_LOOKUP 322 select USE_OF 323 select PINCTRL 324 select PINCTRL_LANTIQ 325 select ARCH_HAS_RESET_CONTROLLER 326 select RESET_CONTROLLER 327 328config LASAT 329 bool "LASAT Networks platforms" 330 select CEVT_R4K 331 select CRC32 332 select CSRC_R4K 333 select DMA_NONCOHERENT 334 select SYS_HAS_EARLY_PRINTK 335 select HW_HAS_PCI 336 select IRQ_CPU 337 select PCI_GT64XXX_PCI0 338 select MIPS_NILE4 339 select R5000_CPU_SCACHE 340 select SYS_HAS_CPU_R5000 341 select SYS_SUPPORTS_32BIT_KERNEL 342 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 343 select SYS_SUPPORTS_LITTLE_ENDIAN 344 345config MACH_LOONGSON 346 bool "Loongson family of machines" 347 select SYS_SUPPORTS_ZBOOT 348 help 349 This enables the support of Loongson family of machines. 350 351 Loongson is a family of general-purpose MIPS-compatible CPUs. 352 developed at Institute of Computing Technology (ICT), 353 Chinese Academy of Sciences (CAS) in the People's Republic 354 of China. The chief architect is Professor Weiwu Hu. 355 356config MACH_LOONGSON1 357 bool "Loongson 1 family of machines" 358 select SYS_SUPPORTS_ZBOOT 359 help 360 This enables support for the Loongson 1 based machines. 361 362 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 363 the ICT (Institute of Computing Technology) and the Chinese Academy 364 of Sciences. 365 366config MACH_PISTACHIO 367 bool "IMG Pistachio SoC based boards" 368 select ARCH_REQUIRE_GPIOLIB 369 select BOOT_ELF32 370 select BOOT_RAW 371 select CEVT_R4K 372 select CLKSRC_MIPS_GIC 373 select COMMON_CLK 374 select CSRC_R4K 375 select DMA_MAYBE_COHERENT 376 select IRQ_CPU 377 select LIBFDT 378 select MFD_SYSCON 379 select MIPS_CPU_SCACHE 380 select MIPS_GIC 381 select PINCTRL 382 select REGULATOR 383 select SYS_HAS_CPU_MIPS32_R2 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_LITTLE_ENDIAN 386 select SYS_SUPPORTS_MIPS_CPS 387 select SYS_SUPPORTS_MULTITHREADING 388 select SYS_SUPPORTS_ZBOOT 389 select USE_OF 390 help 391 This enables support for the IMG Pistachio SoC platform. 392 393config MIPS_MALTA 394 bool "MIPS Malta board" 395 select ARCH_MAY_HAVE_PC_FDC 396 select BOOT_ELF32 397 select BOOT_RAW 398 select CEVT_R4K 399 select CSRC_R4K 400 select CLKSRC_MIPS_GIC 401 select DMA_MAYBE_COHERENT 402 select GENERIC_ISA_DMA 403 select HAVE_PCSPKR_PLATFORM 404 select IRQ_CPU 405 select MIPS_GIC 406 select HW_HAS_PCI 407 select I8253 408 select I8259 409 select MIPS_BONITO64 410 select MIPS_CPU_SCACHE 411 select MIPS_L1_CACHE_SHIFT_6 412 select PCI_GT64XXX_PCI0 413 select MIPS_MSC 414 select SWAP_IO_SPACE 415 select SYS_HAS_CPU_MIPS32_R1 416 select SYS_HAS_CPU_MIPS32_R2 417 select SYS_HAS_CPU_MIPS32_R3_5 418 select SYS_HAS_CPU_MIPS32_R5 419 select SYS_HAS_CPU_MIPS32_R6 420 select SYS_HAS_CPU_MIPS64_R1 421 select SYS_HAS_CPU_MIPS64_R2 422 select SYS_HAS_CPU_MIPS64_R6 423 select SYS_HAS_CPU_NEVADA 424 select SYS_HAS_CPU_RM7000 425 select SYS_SUPPORTS_32BIT_KERNEL 426 select SYS_SUPPORTS_64BIT_KERNEL 427 select SYS_SUPPORTS_BIG_ENDIAN 428 select SYS_SUPPORTS_HIGHMEM 429 select SYS_SUPPORTS_LITTLE_ENDIAN 430 select SYS_SUPPORTS_MICROMIPS 431 select SYS_SUPPORTS_MIPS_CMP 432 select SYS_SUPPORTS_MIPS_CPS 433 select SYS_SUPPORTS_MIPS16 434 select SYS_SUPPORTS_MULTITHREADING 435 select SYS_SUPPORTS_SMARTMIPS 436 select SYS_SUPPORTS_ZBOOT 437 help 438 This enables support for the MIPS Technologies Malta evaluation 439 board. 440 441config MIPS_SEAD3 442 bool "MIPS SEAD3 board" 443 select BOOT_ELF32 444 select BOOT_RAW 445 select BUILTIN_DTB 446 select CEVT_R4K 447 select CSRC_R4K 448 select CLKSRC_MIPS_GIC 449 select CPU_MIPSR2_IRQ_VI 450 select CPU_MIPSR2_IRQ_EI 451 select DMA_NONCOHERENT 452 select IRQ_CPU 453 select MIPS_GIC 454 select LIBFDT 455 select MIPS_MSC 456 select SYS_HAS_CPU_MIPS32_R1 457 select SYS_HAS_CPU_MIPS32_R2 458 select SYS_HAS_CPU_MIPS64_R1 459 select SYS_HAS_EARLY_PRINTK 460 select SYS_SUPPORTS_32BIT_KERNEL 461 select SYS_SUPPORTS_64BIT_KERNEL 462 select SYS_SUPPORTS_BIG_ENDIAN 463 select SYS_SUPPORTS_LITTLE_ENDIAN 464 select SYS_SUPPORTS_SMARTMIPS 465 select SYS_SUPPORTS_MICROMIPS 466 select SYS_SUPPORTS_MIPS16 467 select USB_EHCI_BIG_ENDIAN_DESC 468 select USB_EHCI_BIG_ENDIAN_MMIO 469 select USE_OF 470 help 471 This enables support for the MIPS Technologies SEAD3 evaluation 472 board. 473 474config NEC_MARKEINS 475 bool "NEC EMMA2RH Mark-eins board" 476 select SOC_EMMA2RH 477 select HW_HAS_PCI 478 help 479 This enables support for the NEC Electronics Mark-eins boards. 480 481config MACH_VR41XX 482 bool "NEC VR4100 series based machines" 483 select CEVT_R4K 484 select CSRC_R4K 485 select SYS_HAS_CPU_VR41XX 486 select SYS_SUPPORTS_MIPS16 487 select ARCH_REQUIRE_GPIOLIB 488 489config NXP_STB220 490 bool "NXP STB220 board" 491 select SOC_PNX833X 492 help 493 Support for NXP Semiconductors STB220 Development Board. 494 495config NXP_STB225 496 bool "NXP 225 board" 497 select SOC_PNX833X 498 select SOC_PNX8335 499 help 500 Support for NXP Semiconductors STB225 Development Board. 501 502config PMC_MSP 503 bool "PMC-Sierra MSP chipsets" 504 select CEVT_R4K 505 select CSRC_R4K 506 select DMA_NONCOHERENT 507 select SWAP_IO_SPACE 508 select NO_EXCEPT_FILL 509 select BOOT_RAW 510 select SYS_HAS_CPU_MIPS32_R1 511 select SYS_HAS_CPU_MIPS32_R2 512 select SYS_SUPPORTS_32BIT_KERNEL 513 select SYS_SUPPORTS_BIG_ENDIAN 514 select SYS_SUPPORTS_MIPS16 515 select IRQ_CPU 516 select SERIAL_8250 517 select SERIAL_8250_CONSOLE 518 select USB_EHCI_BIG_ENDIAN_MMIO 519 select USB_EHCI_BIG_ENDIAN_DESC 520 help 521 This adds support for the PMC-Sierra family of Multi-Service 522 Processor System-On-A-Chips. These parts include a number 523 of integrated peripherals, interfaces and DSPs in addition to 524 a variety of MIPS cores. 525 526config RALINK 527 bool "Ralink based machines" 528 select CEVT_R4K 529 select CSRC_R4K 530 select BOOT_RAW 531 select DMA_NONCOHERENT 532 select IRQ_CPU 533 select USE_OF 534 select SYS_HAS_CPU_MIPS32_R1 535 select SYS_HAS_CPU_MIPS32_R2 536 select SYS_SUPPORTS_32BIT_KERNEL 537 select SYS_SUPPORTS_LITTLE_ENDIAN 538 select SYS_SUPPORTS_MIPS16 539 select SYS_HAS_EARLY_PRINTK 540 select HAVE_MACH_CLKDEV 541 select CLKDEV_LOOKUP 542 select ARCH_HAS_RESET_CONTROLLER 543 select RESET_CONTROLLER 544 545config SGI_IP22 546 bool "SGI IP22 (Indy/Indigo2)" 547 select FW_ARC 548 select FW_ARC32 549 select BOOT_ELF32 550 select CEVT_R4K 551 select CSRC_R4K 552 select DEFAULT_SGI_PARTITION 553 select DMA_NONCOHERENT 554 select HW_HAS_EISA 555 select I8253 556 select I8259 557 select IP22_CPU_SCACHE 558 select IRQ_CPU 559 select GENERIC_ISA_DMA_SUPPORT_BROKEN 560 select SGI_HAS_I8042 561 select SGI_HAS_INDYDOG 562 select SGI_HAS_HAL2 563 select SGI_HAS_SEEQ 564 select SGI_HAS_WD93 565 select SGI_HAS_ZILOG 566 select SWAP_IO_SPACE 567 select SYS_HAS_CPU_R4X00 568 select SYS_HAS_CPU_R5000 569 # 570 # Disable EARLY_PRINTK for now since it leads to overwritten prom 571 # memory during early boot on some machines. 572 # 573 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 574 # for a more details discussion 575 # 576 # select SYS_HAS_EARLY_PRINTK 577 select SYS_SUPPORTS_32BIT_KERNEL 578 select SYS_SUPPORTS_64BIT_KERNEL 579 select SYS_SUPPORTS_BIG_ENDIAN 580 select MIPS_L1_CACHE_SHIFT_7 581 help 582 This are the SGI Indy, Challenge S and Indigo2, as well as certain 583 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 584 that runs on these, say Y here. 585 586config SGI_IP27 587 bool "SGI IP27 (Origin200/2000)" 588 select FW_ARC 589 select FW_ARC64 590 select BOOT_ELF64 591 select DEFAULT_SGI_PARTITION 592 select DMA_COHERENT 593 select SYS_HAS_EARLY_PRINTK 594 select HW_HAS_PCI 595 select NR_CPUS_DEFAULT_64 596 select SYS_HAS_CPU_R10000 597 select SYS_SUPPORTS_64BIT_KERNEL 598 select SYS_SUPPORTS_BIG_ENDIAN 599 select SYS_SUPPORTS_NUMA 600 select SYS_SUPPORTS_SMP 601 select MIPS_L1_CACHE_SHIFT_7 602 help 603 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 604 workstations. To compile a Linux kernel that runs on these, say Y 605 here. 606 607config SGI_IP28 608 bool "SGI IP28 (Indigo2 R10k)" 609 select FW_ARC 610 select FW_ARC64 611 select BOOT_ELF64 612 select CEVT_R4K 613 select CSRC_R4K 614 select DEFAULT_SGI_PARTITION 615 select DMA_NONCOHERENT 616 select GENERIC_ISA_DMA_SUPPORT_BROKEN 617 select IRQ_CPU 618 select HW_HAS_EISA 619 select I8253 620 select I8259 621 select SGI_HAS_I8042 622 select SGI_HAS_INDYDOG 623 select SGI_HAS_HAL2 624 select SGI_HAS_SEEQ 625 select SGI_HAS_WD93 626 select SGI_HAS_ZILOG 627 select SWAP_IO_SPACE 628 select SYS_HAS_CPU_R10000 629 # 630 # Disable EARLY_PRINTK for now since it leads to overwritten prom 631 # memory during early boot on some machines. 632 # 633 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 634 # for a more details discussion 635 # 636 # select SYS_HAS_EARLY_PRINTK 637 select SYS_SUPPORTS_64BIT_KERNEL 638 select SYS_SUPPORTS_BIG_ENDIAN 639 select MIPS_L1_CACHE_SHIFT_7 640 help 641 This is the SGI Indigo2 with R10000 processor. To compile a Linux 642 kernel that runs on these, say Y here. 643 644config SGI_IP32 645 bool "SGI IP32 (O2)" 646 select FW_ARC 647 select FW_ARC32 648 select BOOT_ELF32 649 select CEVT_R4K 650 select CSRC_R4K 651 select DMA_NONCOHERENT 652 select HW_HAS_PCI 653 select IRQ_CPU 654 select R5000_CPU_SCACHE 655 select RM7000_CPU_SCACHE 656 select SYS_HAS_CPU_R5000 657 select SYS_HAS_CPU_R10000 if BROKEN 658 select SYS_HAS_CPU_RM7000 659 select SYS_HAS_CPU_NEVADA 660 select SYS_SUPPORTS_64BIT_KERNEL 661 select SYS_SUPPORTS_BIG_ENDIAN 662 help 663 If you want this kernel to run on SGI O2 workstation, say Y here. 664 665config SIBYTE_CRHINE 666 bool "Sibyte BCM91120C-CRhine" 667 select BOOT_ELF32 668 select DMA_COHERENT 669 select SIBYTE_BCM1120 670 select SWAP_IO_SPACE 671 select SYS_HAS_CPU_SB1 672 select SYS_SUPPORTS_BIG_ENDIAN 673 select SYS_SUPPORTS_LITTLE_ENDIAN 674 675config SIBYTE_CARMEL 676 bool "Sibyte BCM91120x-Carmel" 677 select BOOT_ELF32 678 select DMA_COHERENT 679 select SIBYTE_BCM1120 680 select SWAP_IO_SPACE 681 select SYS_HAS_CPU_SB1 682 select SYS_SUPPORTS_BIG_ENDIAN 683 select SYS_SUPPORTS_LITTLE_ENDIAN 684 685config SIBYTE_CRHONE 686 bool "Sibyte BCM91125C-CRhone" 687 select BOOT_ELF32 688 select DMA_COHERENT 689 select SIBYTE_BCM1125 690 select SWAP_IO_SPACE 691 select SYS_HAS_CPU_SB1 692 select SYS_SUPPORTS_BIG_ENDIAN 693 select SYS_SUPPORTS_HIGHMEM 694 select SYS_SUPPORTS_LITTLE_ENDIAN 695 696config SIBYTE_RHONE 697 bool "Sibyte BCM91125E-Rhone" 698 select BOOT_ELF32 699 select DMA_COHERENT 700 select SIBYTE_BCM1125H 701 select SWAP_IO_SPACE 702 select SYS_HAS_CPU_SB1 703 select SYS_SUPPORTS_BIG_ENDIAN 704 select SYS_SUPPORTS_LITTLE_ENDIAN 705 706config SIBYTE_SWARM 707 bool "Sibyte BCM91250A-SWARM" 708 select BOOT_ELF32 709 select DMA_COHERENT 710 select HAVE_PATA_PLATFORM 711 select SIBYTE_SB1250 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_SB1 714 select SYS_SUPPORTS_BIG_ENDIAN 715 select SYS_SUPPORTS_HIGHMEM 716 select SYS_SUPPORTS_LITTLE_ENDIAN 717 select ZONE_DMA32 if 64BIT 718 719config SIBYTE_LITTLESUR 720 bool "Sibyte BCM91250C2-LittleSur" 721 select BOOT_ELF32 722 select DMA_COHERENT 723 select HAVE_PATA_PLATFORM 724 select SIBYTE_SB1250 725 select SWAP_IO_SPACE 726 select SYS_HAS_CPU_SB1 727 select SYS_SUPPORTS_BIG_ENDIAN 728 select SYS_SUPPORTS_HIGHMEM 729 select SYS_SUPPORTS_LITTLE_ENDIAN 730 731config SIBYTE_SENTOSA 732 bool "Sibyte BCM91250E-Sentosa" 733 select BOOT_ELF32 734 select DMA_COHERENT 735 select SIBYTE_SB1250 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_BIGSUR 742 bool "Sibyte BCM91480B-BigSur" 743 select BOOT_ELF32 744 select DMA_COHERENT 745 select NR_CPUS_DEFAULT_4 746 select SIBYTE_BCM1x80 747 select SWAP_IO_SPACE 748 select SYS_HAS_CPU_SB1 749 select SYS_SUPPORTS_BIG_ENDIAN 750 select SYS_SUPPORTS_HIGHMEM 751 select SYS_SUPPORTS_LITTLE_ENDIAN 752 select ZONE_DMA32 if 64BIT 753 754config SNI_RM 755 bool "SNI RM200/300/400" 756 select FW_ARC if CPU_LITTLE_ENDIAN 757 select FW_ARC32 if CPU_LITTLE_ENDIAN 758 select FW_SNIPROM if CPU_BIG_ENDIAN 759 select ARCH_MAY_HAVE_PC_FDC 760 select BOOT_ELF32 761 select CEVT_R4K 762 select CSRC_R4K 763 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 764 select DMA_NONCOHERENT 765 select GENERIC_ISA_DMA 766 select HAVE_PCSPKR_PLATFORM 767 select HW_HAS_EISA 768 select HW_HAS_PCI 769 select IRQ_CPU 770 select I8253 771 select I8259 772 select ISA 773 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 774 select SYS_HAS_CPU_R4X00 775 select SYS_HAS_CPU_R5000 776 select SYS_HAS_CPU_R10000 777 select R5000_CPU_SCACHE 778 select SYS_HAS_EARLY_PRINTK 779 select SYS_SUPPORTS_32BIT_KERNEL 780 select SYS_SUPPORTS_64BIT_KERNEL 781 select SYS_SUPPORTS_BIG_ENDIAN 782 select SYS_SUPPORTS_HIGHMEM 783 select SYS_SUPPORTS_LITTLE_ENDIAN 784 help 785 The SNI RM200/300/400 are MIPS-based machines manufactured by 786 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 787 Technology and now in turn merged with Fujitsu. Say Y here to 788 support this machine type. 789 790config MACH_TX39XX 791 bool "Toshiba TX39 series based machines" 792 793config MACH_TX49XX 794 bool "Toshiba TX49 series based machines" 795 796config MIKROTIK_RB532 797 bool "Mikrotik RB532 boards" 798 select CEVT_R4K 799 select CSRC_R4K 800 select DMA_NONCOHERENT 801 select HW_HAS_PCI 802 select IRQ_CPU 803 select SYS_HAS_CPU_MIPS32_R1 804 select SYS_SUPPORTS_32BIT_KERNEL 805 select SYS_SUPPORTS_LITTLE_ENDIAN 806 select SWAP_IO_SPACE 807 select BOOT_RAW 808 select ARCH_REQUIRE_GPIOLIB 809 select MIPS_L1_CACHE_SHIFT_4 810 help 811 Support the Mikrotik(tm) RouterBoard 532 series, 812 based on the IDT RC32434 SoC. 813 814config CAVIUM_OCTEON_SOC 815 bool "Cavium Networks Octeon SoC based boards" 816 select CEVT_R4K 817 select ARCH_PHYS_ADDR_T_64BIT 818 select DMA_COHERENT 819 select SYS_SUPPORTS_64BIT_KERNEL 820 select SYS_SUPPORTS_BIG_ENDIAN 821 select EDAC_SUPPORT 822 select SYS_SUPPORTS_LITTLE_ENDIAN 823 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 824 select SYS_HAS_EARLY_PRINTK 825 select SYS_HAS_CPU_CAVIUM_OCTEON 826 select SWAP_IO_SPACE 827 select HW_HAS_PCI 828 select ZONE_DMA32 829 select HOLES_IN_ZONE 830 select ARCH_REQUIRE_GPIOLIB 831 select LIBFDT 832 select USE_OF 833 select ARCH_SPARSEMEM_ENABLE 834 select SYS_SUPPORTS_SMP 835 select NR_CPUS_DEFAULT_16 836 select BUILTIN_DTB 837 select MTD_COMPLEX_MAPPINGS 838 help 839 This option supports all of the Octeon reference boards from Cavium 840 Networks. It builds a kernel that dynamically determines the Octeon 841 CPU type and supports all known board reference implementations. 842 Some of the supported boards are: 843 EBT3000 844 EBH3000 845 EBH3100 846 Thunder 847 Kodama 848 Hikari 849 Say Y here for most Octeon reference boards. 850 851config NLM_XLR_BOARD 852 bool "Netlogic XLR/XLS based systems" 853 select BOOT_ELF32 854 select NLM_COMMON 855 select SYS_HAS_CPU_XLR 856 select SYS_SUPPORTS_SMP 857 select HW_HAS_PCI 858 select SWAP_IO_SPACE 859 select SYS_SUPPORTS_32BIT_KERNEL 860 select SYS_SUPPORTS_64BIT_KERNEL 861 select ARCH_PHYS_ADDR_T_64BIT 862 select SYS_SUPPORTS_BIG_ENDIAN 863 select SYS_SUPPORTS_HIGHMEM 864 select DMA_COHERENT 865 select NR_CPUS_DEFAULT_32 866 select CEVT_R4K 867 select CSRC_R4K 868 select IRQ_CPU 869 select ZONE_DMA32 if 64BIT 870 select SYNC_R4K 871 select SYS_HAS_EARLY_PRINTK 872 select SYS_SUPPORTS_ZBOOT 873 select SYS_SUPPORTS_ZBOOT_UART16550 874 help 875 Support for systems based on Netlogic XLR and XLS processors. 876 Say Y here if you have a XLR or XLS based board. 877 878config NLM_XLP_BOARD 879 bool "Netlogic XLP based systems" 880 select BOOT_ELF32 881 select NLM_COMMON 882 select SYS_HAS_CPU_XLP 883 select SYS_SUPPORTS_SMP 884 select HW_HAS_PCI 885 select SYS_SUPPORTS_32BIT_KERNEL 886 select SYS_SUPPORTS_64BIT_KERNEL 887 select ARCH_PHYS_ADDR_T_64BIT 888 select SYS_SUPPORTS_BIG_ENDIAN 889 select SYS_SUPPORTS_LITTLE_ENDIAN 890 select SYS_SUPPORTS_HIGHMEM 891 select DMA_COHERENT 892 select NR_CPUS_DEFAULT_32 893 select CEVT_R4K 894 select CSRC_R4K 895 select IRQ_CPU 896 select ZONE_DMA32 if 64BIT 897 select SYNC_R4K 898 select SYS_HAS_EARLY_PRINTK 899 select USE_OF 900 select SYS_SUPPORTS_ZBOOT 901 select SYS_SUPPORTS_ZBOOT_UART16550 902 help 903 This board is based on Netlogic XLP Processor. 904 Say Y here if you have a XLP based board. 905 906config MIPS_PARAVIRT 907 bool "Para-Virtualized guest system" 908 select CEVT_R4K 909 select CSRC_R4K 910 select DMA_COHERENT 911 select SYS_SUPPORTS_64BIT_KERNEL 912 select SYS_SUPPORTS_32BIT_KERNEL 913 select SYS_SUPPORTS_BIG_ENDIAN 914 select SYS_SUPPORTS_SMP 915 select NR_CPUS_DEFAULT_4 916 select SYS_HAS_EARLY_PRINTK 917 select SYS_HAS_CPU_MIPS32_R2 918 select SYS_HAS_CPU_MIPS64_R2 919 select SYS_HAS_CPU_CAVIUM_OCTEON 920 select HW_HAS_PCI 921 select SWAP_IO_SPACE 922 help 923 This option supports guest running under ???? 924 925endchoice 926 927source "arch/mips/alchemy/Kconfig" 928source "arch/mips/ath25/Kconfig" 929source "arch/mips/ath79/Kconfig" 930source "arch/mips/bcm47xx/Kconfig" 931source "arch/mips/bcm63xx/Kconfig" 932source "arch/mips/bmips/Kconfig" 933source "arch/mips/jazz/Kconfig" 934source "arch/mips/jz4740/Kconfig" 935source "arch/mips/lantiq/Kconfig" 936source "arch/mips/lasat/Kconfig" 937source "arch/mips/pmcs-msp71xx/Kconfig" 938source "arch/mips/ralink/Kconfig" 939source "arch/mips/sgi-ip27/Kconfig" 940source "arch/mips/sibyte/Kconfig" 941source "arch/mips/txx9/Kconfig" 942source "arch/mips/vr41xx/Kconfig" 943source "arch/mips/cavium-octeon/Kconfig" 944source "arch/mips/loongson/Kconfig" 945source "arch/mips/loongson1/Kconfig" 946source "arch/mips/netlogic/Kconfig" 947source "arch/mips/paravirt/Kconfig" 948 949endmenu 950 951config RWSEM_GENERIC_SPINLOCK 952 bool 953 default y 954 955config RWSEM_XCHGADD_ALGORITHM 956 bool 957 958config ARCH_HAS_ILOG2_U32 959 bool 960 default n 961 962config ARCH_HAS_ILOG2_U64 963 bool 964 default n 965 966config GENERIC_HWEIGHT 967 bool 968 default y 969 970config GENERIC_CALIBRATE_DELAY 971 bool 972 default y 973 974config SCHED_OMIT_FRAME_POINTER 975 bool 976 default y 977 978# 979# Select some configuration options automatically based on user selections. 980# 981config FW_ARC 982 bool 983 984config ARCH_MAY_HAVE_PC_FDC 985 bool 986 987config BOOT_RAW 988 bool 989 990config CEVT_BCM1480 991 bool 992 993config CEVT_DS1287 994 bool 995 996config CEVT_GT641XX 997 bool 998 999config CEVT_R4K 1000 bool 1001 1002config CEVT_SB1250 1003 bool 1004 1005config CEVT_TXX9 1006 bool 1007 1008config CSRC_BCM1480 1009 bool 1010 1011config CSRC_IOASIC 1012 bool 1013 1014config CSRC_R4K 1015 bool 1016 1017config CSRC_SB1250 1018 bool 1019 1020config GPIO_TXX9 1021 select ARCH_REQUIRE_GPIOLIB 1022 bool 1023 1024config FW_CFE 1025 bool 1026 1027config ARCH_DMA_ADDR_T_64BIT 1028 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT 1029 1030config DMA_MAYBE_COHERENT 1031 select DMA_NONCOHERENT 1032 bool 1033 1034config DMA_COHERENT 1035 bool 1036 1037config DMA_NONCOHERENT 1038 bool 1039 select NEED_DMA_MAP_STATE 1040 1041config NEED_DMA_MAP_STATE 1042 bool 1043 1044config SYS_HAS_EARLY_PRINTK 1045 bool 1046 1047config HOTPLUG_CPU 1048 bool "Support for hot-pluggable CPUs" 1049 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 1050 help 1051 Say Y here to allow turning CPUs off and on. CPUs can be 1052 controlled through /sys/devices/system/cpu. 1053 (Note: power management support will enable this option 1054 automatically on SMP systems. ) 1055 Say N if you want to disable CPU hotplug. 1056 1057config SYS_SUPPORTS_HOTPLUG_CPU 1058 bool 1059 1060config I8259 1061 bool 1062 select IRQ_DOMAIN 1063 1064config MIPS_BONITO64 1065 bool 1066 1067config MIPS_MSC 1068 bool 1069 1070config MIPS_NILE4 1071 bool 1072 1073config SYNC_R4K 1074 bool 1075 1076config MIPS_MACHINE 1077 def_bool n 1078 1079config NO_IOPORT_MAP 1080 def_bool n 1081 1082config GENERIC_CSUM 1083 bool 1084 1085config GENERIC_ISA_DMA 1086 bool 1087 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1088 select ISA_DMA_API 1089 1090config GENERIC_ISA_DMA_SUPPORT_BROKEN 1091 bool 1092 select GENERIC_ISA_DMA 1093 1094config ISA_DMA_API 1095 bool 1096 1097config HOLES_IN_ZONE 1098 bool 1099 1100# 1101# Endianness selection. Sufficiently obscure so many users don't know what to 1102# answer,so we try hard to limit the available choices. Also the use of a 1103# choice statement should be more obvious to the user. 1104# 1105choice 1106 prompt "Endianness selection" 1107 help 1108 Some MIPS machines can be configured for either little or big endian 1109 byte order. These modes require different kernels and a different 1110 Linux distribution. In general there is one preferred byteorder for a 1111 particular system but some systems are just as commonly used in the 1112 one or the other endianness. 1113 1114config CPU_BIG_ENDIAN 1115 bool "Big endian" 1116 depends on SYS_SUPPORTS_BIG_ENDIAN 1117 1118config CPU_LITTLE_ENDIAN 1119 bool "Little endian" 1120 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1121 1122endchoice 1123 1124config EXPORT_UASM 1125 bool 1126 1127config SYS_SUPPORTS_APM_EMULATION 1128 bool 1129 1130config SYS_SUPPORTS_BIG_ENDIAN 1131 bool 1132 1133config SYS_SUPPORTS_LITTLE_ENDIAN 1134 bool 1135 1136config SYS_SUPPORTS_HUGETLBFS 1137 bool 1138 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1139 default y 1140 1141config MIPS_HUGE_TLB_SUPPORT 1142 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1143 1144config IRQ_CPU 1145 bool 1146 select IRQ_DOMAIN 1147 1148config IRQ_CPU_RM7K 1149 bool 1150 1151config IRQ_MSP_SLP 1152 bool 1153 1154config IRQ_MSP_CIC 1155 bool 1156 1157config IRQ_TXX9 1158 bool 1159 1160config IRQ_GT641XX 1161 bool 1162 1163config PCI_GT64XXX_PCI0 1164 bool 1165 1166config NO_EXCEPT_FILL 1167 bool 1168 1169config SOC_EMMA2RH 1170 bool 1171 select CEVT_R4K 1172 select CSRC_R4K 1173 select DMA_NONCOHERENT 1174 select IRQ_CPU 1175 select SWAP_IO_SPACE 1176 select SYS_HAS_CPU_R5500 1177 select SYS_SUPPORTS_32BIT_KERNEL 1178 select SYS_SUPPORTS_64BIT_KERNEL 1179 select SYS_SUPPORTS_BIG_ENDIAN 1180 1181config SOC_PNX833X 1182 bool 1183 select CEVT_R4K 1184 select CSRC_R4K 1185 select IRQ_CPU 1186 select DMA_NONCOHERENT 1187 select SYS_HAS_CPU_MIPS32_R2 1188 select SYS_SUPPORTS_32BIT_KERNEL 1189 select SYS_SUPPORTS_LITTLE_ENDIAN 1190 select SYS_SUPPORTS_BIG_ENDIAN 1191 select SYS_SUPPORTS_MIPS16 1192 select CPU_MIPSR2_IRQ_VI 1193 1194config SOC_PNX8335 1195 bool 1196 select SOC_PNX833X 1197 1198config MIPS_SPRAM 1199 bool 1200 1201config SWAP_IO_SPACE 1202 bool 1203 1204config SGI_HAS_INDYDOG 1205 bool 1206 1207config SGI_HAS_HAL2 1208 bool 1209 1210config SGI_HAS_SEEQ 1211 bool 1212 1213config SGI_HAS_WD93 1214 bool 1215 1216config SGI_HAS_ZILOG 1217 bool 1218 1219config SGI_HAS_I8042 1220 bool 1221 1222config DEFAULT_SGI_PARTITION 1223 bool 1224 1225config FW_ARC32 1226 bool 1227 1228config FW_SNIPROM 1229 bool 1230 1231config BOOT_ELF32 1232 bool 1233 1234config MIPS_L1_CACHE_SHIFT_4 1235 bool 1236 1237config MIPS_L1_CACHE_SHIFT_5 1238 bool 1239 1240config MIPS_L1_CACHE_SHIFT_6 1241 bool 1242 1243config MIPS_L1_CACHE_SHIFT_7 1244 bool 1245 1246config MIPS_L1_CACHE_SHIFT 1247 int 1248 default "7" if MIPS_L1_CACHE_SHIFT_7 1249 default "6" if MIPS_L1_CACHE_SHIFT_6 1250 default "5" if MIPS_L1_CACHE_SHIFT_5 1251 default "4" if MIPS_L1_CACHE_SHIFT_4 1252 default "5" 1253 1254config HAVE_STD_PC_SERIAL_PORT 1255 bool 1256 1257config ARC_CONSOLE 1258 bool "ARC console support" 1259 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1260 1261config ARC_MEMORY 1262 bool 1263 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1264 default y 1265 1266config ARC_PROMLIB 1267 bool 1268 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1269 default y 1270 1271config FW_ARC64 1272 bool 1273 1274config BOOT_ELF64 1275 bool 1276 1277menu "CPU selection" 1278 1279choice 1280 prompt "CPU type" 1281 default CPU_R4X00 1282 1283config CPU_LOONGSON3 1284 bool "Loongson 3 CPU" 1285 depends on SYS_HAS_CPU_LOONGSON3 1286 select CPU_SUPPORTS_64BIT_KERNEL 1287 select CPU_SUPPORTS_HIGHMEM 1288 select CPU_SUPPORTS_HUGEPAGES 1289 select WEAK_ORDERING 1290 select WEAK_REORDERING_BEYOND_LLSC 1291 select ARCH_REQUIRE_GPIOLIB 1292 help 1293 The Loongson 3 processor implements the MIPS64R2 instruction 1294 set with many extensions. 1295 1296config CPU_LOONGSON2E 1297 bool "Loongson 2E" 1298 depends on SYS_HAS_CPU_LOONGSON2E 1299 select CPU_LOONGSON2 1300 help 1301 The Loongson 2E processor implements the MIPS III instruction set 1302 with many extensions. 1303 1304 It has an internal FPGA northbridge, which is compatible to 1305 bonito64. 1306 1307config CPU_LOONGSON2F 1308 bool "Loongson 2F" 1309 depends on SYS_HAS_CPU_LOONGSON2F 1310 select CPU_LOONGSON2 1311 select ARCH_REQUIRE_GPIOLIB 1312 help 1313 The Loongson 2F processor implements the MIPS III instruction set 1314 with many extensions. 1315 1316 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1317 have a similar programming interface with FPGA northbridge used in 1318 Loongson2E. 1319 1320config CPU_LOONGSON1B 1321 bool "Loongson 1B" 1322 depends on SYS_HAS_CPU_LOONGSON1B 1323 select CPU_LOONGSON1 1324 help 1325 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1326 release 2 instruction set. 1327 1328config CPU_MIPS32_R1 1329 bool "MIPS32 Release 1" 1330 depends on SYS_HAS_CPU_MIPS32_R1 1331 select CPU_HAS_PREFETCH 1332 select CPU_SUPPORTS_32BIT_KERNEL 1333 select CPU_SUPPORTS_HIGHMEM 1334 help 1335 Choose this option to build a kernel for release 1 or later of the 1336 MIPS32 architecture. Most modern embedded systems with a 32-bit 1337 MIPS processor are based on a MIPS32 processor. If you know the 1338 specific type of processor in your system, choose those that one 1339 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1340 Release 2 of the MIPS32 architecture is available since several 1341 years so chances are you even have a MIPS32 Release 2 processor 1342 in which case you should choose CPU_MIPS32_R2 instead for better 1343 performance. 1344 1345config CPU_MIPS32_R2 1346 bool "MIPS32 Release 2" 1347 depends on SYS_HAS_CPU_MIPS32_R2 1348 select CPU_HAS_PREFETCH 1349 select CPU_SUPPORTS_32BIT_KERNEL 1350 select CPU_SUPPORTS_HIGHMEM 1351 select CPU_SUPPORTS_MSA 1352 select HAVE_KVM 1353 help 1354 Choose this option to build a kernel for release 2 or later of the 1355 MIPS32 architecture. Most modern embedded systems with a 32-bit 1356 MIPS processor are based on a MIPS32 processor. If you know the 1357 specific type of processor in your system, choose those that one 1358 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1359 1360config CPU_MIPS32_R6 1361 bool "MIPS32 Release 6 (EXPERIMENTAL)" 1362 depends on SYS_HAS_CPU_MIPS32_R6 1363 select CPU_HAS_PREFETCH 1364 select CPU_SUPPORTS_32BIT_KERNEL 1365 select CPU_SUPPORTS_HIGHMEM 1366 select CPU_SUPPORTS_MSA 1367 select GENERIC_CSUM 1368 select HAVE_KVM 1369 select MIPS_O32_FP64_SUPPORT 1370 help 1371 Choose this option to build a kernel for release 6 or later of the 1372 MIPS32 architecture. New MIPS processors, starting with the Warrior 1373 family, are based on a MIPS32r6 processor. If you own an older 1374 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1375 1376config CPU_MIPS64_R1 1377 bool "MIPS64 Release 1" 1378 depends on SYS_HAS_CPU_MIPS64_R1 1379 select CPU_HAS_PREFETCH 1380 select CPU_SUPPORTS_32BIT_KERNEL 1381 select CPU_SUPPORTS_64BIT_KERNEL 1382 select CPU_SUPPORTS_HIGHMEM 1383 select CPU_SUPPORTS_HUGEPAGES 1384 help 1385 Choose this option to build a kernel for release 1 or later of the 1386 MIPS64 architecture. Many modern embedded systems with a 64-bit 1387 MIPS processor are based on a MIPS64 processor. If you know the 1388 specific type of processor in your system, choose those that one 1389 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1390 Release 2 of the MIPS64 architecture is available since several 1391 years so chances are you even have a MIPS64 Release 2 processor 1392 in which case you should choose CPU_MIPS64_R2 instead for better 1393 performance. 1394 1395config CPU_MIPS64_R2 1396 bool "MIPS64 Release 2" 1397 depends on SYS_HAS_CPU_MIPS64_R2 1398 select CPU_HAS_PREFETCH 1399 select CPU_SUPPORTS_32BIT_KERNEL 1400 select CPU_SUPPORTS_64BIT_KERNEL 1401 select CPU_SUPPORTS_HIGHMEM 1402 select CPU_SUPPORTS_HUGEPAGES 1403 select CPU_SUPPORTS_MSA 1404 help 1405 Choose this option to build a kernel for release 2 or later of the 1406 MIPS64 architecture. Many modern embedded systems with a 64-bit 1407 MIPS processor are based on a MIPS64 processor. If you know the 1408 specific type of processor in your system, choose those that one 1409 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1410 1411config CPU_MIPS64_R6 1412 bool "MIPS64 Release 6 (EXPERIMENTAL)" 1413 depends on SYS_HAS_CPU_MIPS64_R6 1414 select CPU_HAS_PREFETCH 1415 select CPU_SUPPORTS_32BIT_KERNEL 1416 select CPU_SUPPORTS_64BIT_KERNEL 1417 select CPU_SUPPORTS_HIGHMEM 1418 select CPU_SUPPORTS_MSA 1419 select GENERIC_CSUM 1420 help 1421 Choose this option to build a kernel for release 6 or later of the 1422 MIPS64 architecture. New MIPS processors, starting with the Warrior 1423 family, are based on a MIPS64r6 processor. If you own an older 1424 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1425 1426config CPU_R3000 1427 bool "R3000" 1428 depends on SYS_HAS_CPU_R3000 1429 select CPU_HAS_WB 1430 select CPU_SUPPORTS_32BIT_KERNEL 1431 select CPU_SUPPORTS_HIGHMEM 1432 help 1433 Please make sure to pick the right CPU type. Linux/MIPS is not 1434 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1435 *not* work on R4000 machines and vice versa. However, since most 1436 of the supported machines have an R4000 (or similar) CPU, R4x00 1437 might be a safe bet. If the resulting kernel does not work, 1438 try to recompile with R3000. 1439 1440config CPU_TX39XX 1441 bool "R39XX" 1442 depends on SYS_HAS_CPU_TX39XX 1443 select CPU_SUPPORTS_32BIT_KERNEL 1444 1445config CPU_VR41XX 1446 bool "R41xx" 1447 depends on SYS_HAS_CPU_VR41XX 1448 select CPU_SUPPORTS_32BIT_KERNEL 1449 select CPU_SUPPORTS_64BIT_KERNEL 1450 help 1451 The options selects support for the NEC VR4100 series of processors. 1452 Only choose this option if you have one of these processors as a 1453 kernel built with this option will not run on any other type of 1454 processor or vice versa. 1455 1456config CPU_R4300 1457 bool "R4300" 1458 depends on SYS_HAS_CPU_R4300 1459 select CPU_SUPPORTS_32BIT_KERNEL 1460 select CPU_SUPPORTS_64BIT_KERNEL 1461 help 1462 MIPS Technologies R4300-series processors. 1463 1464config CPU_R4X00 1465 bool "R4x00" 1466 depends on SYS_HAS_CPU_R4X00 1467 select CPU_SUPPORTS_32BIT_KERNEL 1468 select CPU_SUPPORTS_64BIT_KERNEL 1469 select CPU_SUPPORTS_HUGEPAGES 1470 help 1471 MIPS Technologies R4000-series processors other than 4300, including 1472 the R4000, R4400, R4600, and 4700. 1473 1474config CPU_TX49XX 1475 bool "R49XX" 1476 depends on SYS_HAS_CPU_TX49XX 1477 select CPU_HAS_PREFETCH 1478 select CPU_SUPPORTS_32BIT_KERNEL 1479 select CPU_SUPPORTS_64BIT_KERNEL 1480 select CPU_SUPPORTS_HUGEPAGES 1481 1482config CPU_R5000 1483 bool "R5000" 1484 depends on SYS_HAS_CPU_R5000 1485 select CPU_SUPPORTS_32BIT_KERNEL 1486 select CPU_SUPPORTS_64BIT_KERNEL 1487 select CPU_SUPPORTS_HUGEPAGES 1488 help 1489 MIPS Technologies R5000-series processors other than the Nevada. 1490 1491config CPU_R5432 1492 bool "R5432" 1493 depends on SYS_HAS_CPU_R5432 1494 select CPU_SUPPORTS_32BIT_KERNEL 1495 select CPU_SUPPORTS_64BIT_KERNEL 1496 select CPU_SUPPORTS_HUGEPAGES 1497 1498config CPU_R5500 1499 bool "R5500" 1500 depends on SYS_HAS_CPU_R5500 1501 select CPU_SUPPORTS_32BIT_KERNEL 1502 select CPU_SUPPORTS_64BIT_KERNEL 1503 select CPU_SUPPORTS_HUGEPAGES 1504 help 1505 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1506 instruction set. 1507 1508config CPU_R6000 1509 bool "R6000" 1510 depends on SYS_HAS_CPU_R6000 1511 select CPU_SUPPORTS_32BIT_KERNEL 1512 help 1513 MIPS Technologies R6000 and R6000A series processors. Note these 1514 processors are extremely rare and the support for them is incomplete. 1515 1516config CPU_NEVADA 1517 bool "RM52xx" 1518 depends on SYS_HAS_CPU_NEVADA 1519 select CPU_SUPPORTS_32BIT_KERNEL 1520 select CPU_SUPPORTS_64BIT_KERNEL 1521 select CPU_SUPPORTS_HUGEPAGES 1522 help 1523 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1524 1525config CPU_R8000 1526 bool "R8000" 1527 depends on SYS_HAS_CPU_R8000 1528 select CPU_HAS_PREFETCH 1529 select CPU_SUPPORTS_64BIT_KERNEL 1530 help 1531 MIPS Technologies R8000 processors. Note these processors are 1532 uncommon and the support for them is incomplete. 1533 1534config CPU_R10000 1535 bool "R10000" 1536 depends on SYS_HAS_CPU_R10000 1537 select CPU_HAS_PREFETCH 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 select CPU_SUPPORTS_HIGHMEM 1541 select CPU_SUPPORTS_HUGEPAGES 1542 help 1543 MIPS Technologies R10000-series processors. 1544 1545config CPU_RM7000 1546 bool "RM7000" 1547 depends on SYS_HAS_CPU_RM7000 1548 select CPU_HAS_PREFETCH 1549 select CPU_SUPPORTS_32BIT_KERNEL 1550 select CPU_SUPPORTS_64BIT_KERNEL 1551 select CPU_SUPPORTS_HIGHMEM 1552 select CPU_SUPPORTS_HUGEPAGES 1553 1554config CPU_SB1 1555 bool "SB1" 1556 depends on SYS_HAS_CPU_SB1 1557 select CPU_SUPPORTS_32BIT_KERNEL 1558 select CPU_SUPPORTS_64BIT_KERNEL 1559 select CPU_SUPPORTS_HIGHMEM 1560 select CPU_SUPPORTS_HUGEPAGES 1561 select WEAK_ORDERING 1562 1563config CPU_CAVIUM_OCTEON 1564 bool "Cavium Octeon processor" 1565 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1566 select CPU_HAS_PREFETCH 1567 select CPU_SUPPORTS_64BIT_KERNEL 1568 select WEAK_ORDERING 1569 select CPU_SUPPORTS_HIGHMEM 1570 select CPU_SUPPORTS_HUGEPAGES 1571 select USB_EHCI_BIG_ENDIAN_MMIO 1572 select MIPS_L1_CACHE_SHIFT_7 1573 help 1574 The Cavium Octeon processor is a highly integrated chip containing 1575 many ethernet hardware widgets for networking tasks. The processor 1576 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1577 Full details can be found at http://www.caviumnetworks.com. 1578 1579config CPU_BMIPS 1580 bool "Broadcom BMIPS" 1581 depends on SYS_HAS_CPU_BMIPS 1582 select CPU_MIPS32 1583 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1584 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1585 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1586 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1587 select CPU_SUPPORTS_32BIT_KERNEL 1588 select DMA_NONCOHERENT 1589 select IRQ_CPU 1590 select SWAP_IO_SPACE 1591 select WEAK_ORDERING 1592 select CPU_SUPPORTS_HIGHMEM 1593 select CPU_HAS_PREFETCH 1594 help 1595 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1596 1597config CPU_XLR 1598 bool "Netlogic XLR SoC" 1599 depends on SYS_HAS_CPU_XLR 1600 select CPU_SUPPORTS_32BIT_KERNEL 1601 select CPU_SUPPORTS_64BIT_KERNEL 1602 select CPU_SUPPORTS_HIGHMEM 1603 select CPU_SUPPORTS_HUGEPAGES 1604 select WEAK_ORDERING 1605 select WEAK_REORDERING_BEYOND_LLSC 1606 help 1607 Netlogic Microsystems XLR/XLS processors. 1608 1609config CPU_XLP 1610 bool "Netlogic XLP SoC" 1611 depends on SYS_HAS_CPU_XLP 1612 select CPU_SUPPORTS_32BIT_KERNEL 1613 select CPU_SUPPORTS_64BIT_KERNEL 1614 select CPU_SUPPORTS_HIGHMEM 1615 select WEAK_ORDERING 1616 select WEAK_REORDERING_BEYOND_LLSC 1617 select CPU_HAS_PREFETCH 1618 select CPU_MIPSR2 1619 select CPU_SUPPORTS_HUGEPAGES 1620 help 1621 Netlogic Microsystems XLP processors. 1622endchoice 1623 1624config CPU_MIPS32_3_5_FEATURES 1625 bool "MIPS32 Release 3.5 Features" 1626 depends on SYS_HAS_CPU_MIPS32_R3_5 1627 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1628 help 1629 Choose this option to build a kernel for release 2 or later of the 1630 MIPS32 architecture including features from the 3.5 release such as 1631 support for Enhanced Virtual Addressing (EVA). 1632 1633config CPU_MIPS32_3_5_EVA 1634 bool "Enhanced Virtual Addressing (EVA)" 1635 depends on CPU_MIPS32_3_5_FEATURES 1636 select EVA 1637 default y 1638 help 1639 Choose this option if you want to enable the Enhanced Virtual 1640 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1641 One of its primary benefits is an increase in the maximum size 1642 of lowmem (up to 3GB). If unsure, say 'N' here. 1643 1644config CPU_MIPS32_R5_FEATURES 1645 bool "MIPS32 Release 5 Features" 1646 depends on SYS_HAS_CPU_MIPS32_R5 1647 depends on CPU_MIPS32_R2 1648 help 1649 Choose this option to build a kernel for release 2 or later of the 1650 MIPS32 architecture including features from release 5 such as 1651 support for Extended Physical Addressing (XPA). 1652 1653config CPU_MIPS32_R5_XPA 1654 bool "Extended Physical Addressing (XPA)" 1655 depends on CPU_MIPS32_R5_FEATURES 1656 depends on !EVA 1657 depends on !PAGE_SIZE_4KB 1658 depends on SYS_SUPPORTS_HIGHMEM 1659 select XPA 1660 select HIGHMEM 1661 select ARCH_PHYS_ADDR_T_64BIT 1662 default n 1663 help 1664 Choose this option if you want to enable the Extended Physical 1665 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1666 benefit is to increase physical addressing equal to or greater 1667 than 40 bits. Note that this has the side effect of turning on 1668 64-bit addressing which in turn makes the PTEs 64-bit in size. 1669 If unsure, say 'N' here. 1670 1671if CPU_LOONGSON2F 1672config CPU_NOP_WORKAROUNDS 1673 bool 1674 1675config CPU_JUMP_WORKAROUNDS 1676 bool 1677 1678config CPU_LOONGSON2F_WORKAROUNDS 1679 bool "Loongson 2F Workarounds" 1680 default y 1681 select CPU_NOP_WORKAROUNDS 1682 select CPU_JUMP_WORKAROUNDS 1683 help 1684 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1685 require workarounds. Without workarounds the system may hang 1686 unexpectedly. For more information please refer to the gas 1687 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1688 1689 Loongson 2F03 and later have fixed these issues and no workarounds 1690 are needed. The workarounds have no significant side effect on them 1691 but may decrease the performance of the system so this option should 1692 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1693 systems. 1694 1695 If unsure, please say Y. 1696endif # CPU_LOONGSON2F 1697 1698config SYS_SUPPORTS_ZBOOT 1699 bool 1700 select HAVE_KERNEL_GZIP 1701 select HAVE_KERNEL_BZIP2 1702 select HAVE_KERNEL_LZ4 1703 select HAVE_KERNEL_LZMA 1704 select HAVE_KERNEL_LZO 1705 select HAVE_KERNEL_XZ 1706 1707config SYS_SUPPORTS_ZBOOT_UART16550 1708 bool 1709 select SYS_SUPPORTS_ZBOOT 1710 1711config CPU_LOONGSON2 1712 bool 1713 select CPU_SUPPORTS_32BIT_KERNEL 1714 select CPU_SUPPORTS_64BIT_KERNEL 1715 select CPU_SUPPORTS_HIGHMEM 1716 select CPU_SUPPORTS_HUGEPAGES 1717 1718config CPU_LOONGSON1 1719 bool 1720 select CPU_MIPS32 1721 select CPU_MIPSR2 1722 select CPU_HAS_PREFETCH 1723 select CPU_SUPPORTS_32BIT_KERNEL 1724 select CPU_SUPPORTS_HIGHMEM 1725 select CPU_SUPPORTS_CPUFREQ 1726 1727config CPU_BMIPS32_3300 1728 select SMP_UP if SMP 1729 bool 1730 1731config CPU_BMIPS4350 1732 bool 1733 select SYS_SUPPORTS_SMP 1734 select SYS_SUPPORTS_HOTPLUG_CPU 1735 1736config CPU_BMIPS4380 1737 bool 1738 select MIPS_L1_CACHE_SHIFT_6 1739 select SYS_SUPPORTS_SMP 1740 select SYS_SUPPORTS_HOTPLUG_CPU 1741 1742config CPU_BMIPS5000 1743 bool 1744 select MIPS_CPU_SCACHE 1745 select MIPS_L1_CACHE_SHIFT_7 1746 select SYS_SUPPORTS_SMP 1747 select SYS_SUPPORTS_HOTPLUG_CPU 1748 1749config SYS_HAS_CPU_LOONGSON3 1750 bool 1751 select CPU_SUPPORTS_CPUFREQ 1752 1753config SYS_HAS_CPU_LOONGSON2E 1754 bool 1755 1756config SYS_HAS_CPU_LOONGSON2F 1757 bool 1758 select CPU_SUPPORTS_CPUFREQ 1759 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1760 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1761 1762config SYS_HAS_CPU_LOONGSON1B 1763 bool 1764 1765config SYS_HAS_CPU_MIPS32_R1 1766 bool 1767 1768config SYS_HAS_CPU_MIPS32_R2 1769 bool 1770 1771config SYS_HAS_CPU_MIPS32_R3_5 1772 bool 1773 1774config SYS_HAS_CPU_MIPS32_R5 1775 bool 1776 1777config SYS_HAS_CPU_MIPS32_R6 1778 bool 1779 1780config SYS_HAS_CPU_MIPS64_R1 1781 bool 1782 1783config SYS_HAS_CPU_MIPS64_R2 1784 bool 1785 1786config SYS_HAS_CPU_MIPS64_R6 1787 bool 1788 1789config SYS_HAS_CPU_R3000 1790 bool 1791 1792config SYS_HAS_CPU_TX39XX 1793 bool 1794 1795config SYS_HAS_CPU_VR41XX 1796 bool 1797 1798config SYS_HAS_CPU_R4300 1799 bool 1800 1801config SYS_HAS_CPU_R4X00 1802 bool 1803 1804config SYS_HAS_CPU_TX49XX 1805 bool 1806 1807config SYS_HAS_CPU_R5000 1808 bool 1809 1810config SYS_HAS_CPU_R5432 1811 bool 1812 1813config SYS_HAS_CPU_R5500 1814 bool 1815 1816config SYS_HAS_CPU_R6000 1817 bool 1818 1819config SYS_HAS_CPU_NEVADA 1820 bool 1821 1822config SYS_HAS_CPU_R8000 1823 bool 1824 1825config SYS_HAS_CPU_R10000 1826 bool 1827 1828config SYS_HAS_CPU_RM7000 1829 bool 1830 1831config SYS_HAS_CPU_SB1 1832 bool 1833 1834config SYS_HAS_CPU_CAVIUM_OCTEON 1835 bool 1836 1837config SYS_HAS_CPU_BMIPS 1838 bool 1839 1840config SYS_HAS_CPU_BMIPS32_3300 1841 bool 1842 select SYS_HAS_CPU_BMIPS 1843 1844config SYS_HAS_CPU_BMIPS4350 1845 bool 1846 select SYS_HAS_CPU_BMIPS 1847 1848config SYS_HAS_CPU_BMIPS4380 1849 bool 1850 select SYS_HAS_CPU_BMIPS 1851 1852config SYS_HAS_CPU_BMIPS5000 1853 bool 1854 select SYS_HAS_CPU_BMIPS 1855 1856config SYS_HAS_CPU_XLR 1857 bool 1858 1859config SYS_HAS_CPU_XLP 1860 bool 1861 1862config MIPS_MALTA_PM 1863 depends on MIPS_MALTA 1864 depends on PCI 1865 bool 1866 default y 1867 1868# 1869# CPU may reorder R->R, R->W, W->R, W->W 1870# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1871# 1872config WEAK_ORDERING 1873 bool 1874 1875# 1876# CPU may reorder reads and writes beyond LL/SC 1877# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1878# 1879config WEAK_REORDERING_BEYOND_LLSC 1880 bool 1881endmenu 1882 1883# 1884# These two indicate any level of the MIPS32 and MIPS64 architecture 1885# 1886config CPU_MIPS32 1887 bool 1888 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1889 1890config CPU_MIPS64 1891 bool 1892 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1893 1894# 1895# These two indicate the revision of the architecture, either Release 1 or Release 2 1896# 1897config CPU_MIPSR1 1898 bool 1899 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1900 1901config CPU_MIPSR2 1902 bool 1903 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1904 select MIPS_SPRAM 1905 1906config CPU_MIPSR6 1907 bool 1908 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 1909 select MIPS_SPRAM 1910 1911config EVA 1912 bool 1913 1914config XPA 1915 bool 1916 1917config SYS_SUPPORTS_32BIT_KERNEL 1918 bool 1919config SYS_SUPPORTS_64BIT_KERNEL 1920 bool 1921config CPU_SUPPORTS_32BIT_KERNEL 1922 bool 1923config CPU_SUPPORTS_64BIT_KERNEL 1924 bool 1925config CPU_SUPPORTS_CPUFREQ 1926 bool 1927config CPU_SUPPORTS_ADDRWINCFG 1928 bool 1929config CPU_SUPPORTS_HUGEPAGES 1930 bool 1931config CPU_SUPPORTS_UNCACHED_ACCELERATED 1932 bool 1933config MIPS_PGD_C0_CONTEXT 1934 bool 1935 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1936 1937# 1938# Set to y for ptrace access to watch registers. 1939# 1940config HARDWARE_WATCHPOINTS 1941 bool 1942 default y if CPU_MIPSR1 || CPU_MIPSR2 1943 1944menu "Kernel type" 1945 1946choice 1947 prompt "Kernel code model" 1948 help 1949 You should only select this option if you have a workload that 1950 actually benefits from 64-bit processing or if your machine has 1951 large memory. You will only be presented a single option in this 1952 menu if your system does not support both 32-bit and 64-bit kernels. 1953 1954config 32BIT 1955 bool "32-bit kernel" 1956 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1957 select TRAD_SIGNALS 1958 help 1959 Select this option if you want to build a 32-bit kernel. 1960config 64BIT 1961 bool "64-bit kernel" 1962 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1963 help 1964 Select this option if you want to build a 64-bit kernel. 1965 1966endchoice 1967 1968config KVM_GUEST 1969 bool "KVM Guest Kernel" 1970 depends on BROKEN_ON_SMP 1971 help 1972 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1973 1974config KVM_GUEST_TIMER_FREQ 1975 int "Count/Compare Timer Frequency (MHz)" 1976 depends on KVM_GUEST 1977 default 100 1978 help 1979 Set this to non-zero if building a guest kernel for KVM to skip RTC 1980 emulation when determining guest CPU Frequency. Instead, the guest's 1981 timer frequency is specified directly. 1982 1983choice 1984 prompt "Kernel page size" 1985 default PAGE_SIZE_4KB 1986 1987config PAGE_SIZE_4KB 1988 bool "4kB" 1989 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 1990 help 1991 This option select the standard 4kB Linux page size. On some 1992 R3000-family processors this is the only available page size. Using 1993 4kB page size will minimize memory consumption and is therefore 1994 recommended for low memory systems. 1995 1996config PAGE_SIZE_8KB 1997 bool "8kB" 1998 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1999 help 2000 Using 8kB page size will result in higher performance kernel at 2001 the price of higher memory consumption. This option is available 2002 only on R8000 and cnMIPS processors. Note that you will need a 2003 suitable Linux distribution to support this. 2004 2005config PAGE_SIZE_16KB 2006 bool "16kB" 2007 depends on !CPU_R3000 && !CPU_TX39XX 2008 help 2009 Using 16kB page size will result in higher performance kernel at 2010 the price of higher memory consumption. This option is available on 2011 all non-R3000 family processors. Note that you will need a suitable 2012 Linux distribution to support this. 2013 2014config PAGE_SIZE_32KB 2015 bool "32kB" 2016 depends on CPU_CAVIUM_OCTEON 2017 help 2018 Using 32kB page size will result in higher performance kernel at 2019 the price of higher memory consumption. This option is available 2020 only on cnMIPS cores. Note that you will need a suitable Linux 2021 distribution to support this. 2022 2023config PAGE_SIZE_64KB 2024 bool "64kB" 2025 depends on !CPU_R3000 && !CPU_TX39XX 2026 help 2027 Using 64kB page size will result in higher performance kernel at 2028 the price of higher memory consumption. This option is available on 2029 all non-R3000 family processor. Not that at the time of this 2030 writing this option is still high experimental. 2031 2032endchoice 2033 2034config FORCE_MAX_ZONEORDER 2035 int "Maximum zone order" 2036 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2037 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2038 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2039 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2040 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2041 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2042 range 11 64 2043 default "11" 2044 help 2045 The kernel memory allocator divides physically contiguous memory 2046 blocks into "zones", where each zone is a power of two number of 2047 pages. This option selects the largest power of two that the kernel 2048 keeps in the memory allocator. If you need to allocate very large 2049 blocks of physically contiguous memory, then you may need to 2050 increase this value. 2051 2052 This config option is actually maximum order plus one. For example, 2053 a value of 11 means that the largest free memory block is 2^10 pages. 2054 2055 The page size is not necessarily 4KB. Keep this in mind 2056 when choosing a value for this option. 2057 2058config BOARD_SCACHE 2059 bool 2060 2061config IP22_CPU_SCACHE 2062 bool 2063 select BOARD_SCACHE 2064 2065# 2066# Support for a MIPS32 / MIPS64 style S-caches 2067# 2068config MIPS_CPU_SCACHE 2069 bool 2070 select BOARD_SCACHE 2071 2072config R5000_CPU_SCACHE 2073 bool 2074 select BOARD_SCACHE 2075 2076config RM7000_CPU_SCACHE 2077 bool 2078 select BOARD_SCACHE 2079 2080config SIBYTE_DMA_PAGEOPS 2081 bool "Use DMA to clear/copy pages" 2082 depends on CPU_SB1 2083 help 2084 Instead of using the CPU to zero and copy pages, use a Data Mover 2085 channel. These DMA channels are otherwise unused by the standard 2086 SiByte Linux port. Seems to give a small performance benefit. 2087 2088config CPU_HAS_PREFETCH 2089 bool 2090 2091config CPU_GENERIC_DUMP_TLB 2092 bool 2093 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2094 2095config CPU_R4K_FPU 2096 bool 2097 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2098 2099config CPU_R4K_CACHE_TLB 2100 bool 2101 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2102 2103config MIPS_MT_SMP 2104 bool "MIPS MT SMP support (1 TC on each available VPE)" 2105 depends on SYS_SUPPORTS_MULTITHREADING 2106 select CPU_MIPSR2_IRQ_VI 2107 select CPU_MIPSR2_IRQ_EI 2108 select SYNC_R4K 2109 select MIPS_GIC_IPI 2110 select MIPS_MT 2111 select SMP 2112 select SMP_UP 2113 select SYS_SUPPORTS_SMP 2114 select SYS_SUPPORTS_SCHED_SMT 2115 select MIPS_PERF_SHARED_TC_COUNTERS 2116 help 2117 This is a kernel model which is known as SMVP. This is supported 2118 on cores with the MT ASE and uses the available VPEs to implement 2119 virtual processors which supports SMP. This is equivalent to the 2120 Intel Hyperthreading feature. For further information go to 2121 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2122 2123config MIPS_MT 2124 bool 2125 2126config SCHED_SMT 2127 bool "SMT (multithreading) scheduler support" 2128 depends on SYS_SUPPORTS_SCHED_SMT 2129 default n 2130 help 2131 SMT scheduler support improves the CPU scheduler's decision making 2132 when dealing with MIPS MT enabled cores at a cost of slightly 2133 increased overhead in some places. If unsure say N here. 2134 2135config SYS_SUPPORTS_SCHED_SMT 2136 bool 2137 2138config SYS_SUPPORTS_MULTITHREADING 2139 bool 2140 2141config MIPS_MT_FPAFF 2142 bool "Dynamic FPU affinity for FP-intensive threads" 2143 default y 2144 depends on MIPS_MT_SMP 2145 2146config MIPSR2_TO_R6_EMULATOR 2147 bool "MIPS R2-to-R6 emulator" 2148 depends on CPU_MIPSR6 && !SMP 2149 default y 2150 help 2151 Choose this option if you want to run non-R6 MIPS userland code. 2152 Even if you say 'Y' here, the emulator will still be disabled by 2153 default. You can enable it using the 'mipsr2emu' kernel option. 2154 The only reason this is a build-time option is to save ~14K from the 2155 final kernel image. 2156comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2157 depends on SMP && CPU_MIPSR6 2158 2159config MIPS_VPE_LOADER 2160 bool "VPE loader support." 2161 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2162 select CPU_MIPSR2_IRQ_VI 2163 select CPU_MIPSR2_IRQ_EI 2164 select MIPS_MT 2165 help 2166 Includes a loader for loading an elf relocatable object 2167 onto another VPE and running it. 2168 2169config MIPS_VPE_LOADER_CMP 2170 bool 2171 default "y" 2172 depends on MIPS_VPE_LOADER && MIPS_CMP 2173 2174config MIPS_VPE_LOADER_MT 2175 bool 2176 default "y" 2177 depends on MIPS_VPE_LOADER && !MIPS_CMP 2178 2179config MIPS_VPE_LOADER_TOM 2180 bool "Load VPE program into memory hidden from linux" 2181 depends on MIPS_VPE_LOADER 2182 default y 2183 help 2184 The loader can use memory that is present but has been hidden from 2185 Linux using the kernel command line option "mem=xxMB". It's up to 2186 you to ensure the amount you put in the option and the space your 2187 program requires is less or equal to the amount physically present. 2188 2189config MIPS_VPE_APSP_API 2190 bool "Enable support for AP/SP API (RTLX)" 2191 depends on MIPS_VPE_LOADER 2192 help 2193 2194config MIPS_VPE_APSP_API_CMP 2195 bool 2196 default "y" 2197 depends on MIPS_VPE_APSP_API && MIPS_CMP 2198 2199config MIPS_VPE_APSP_API_MT 2200 bool 2201 default "y" 2202 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2203 2204config MIPS_CMP 2205 bool "MIPS CMP framework support (DEPRECATED)" 2206 depends on SYS_SUPPORTS_MIPS_CMP 2207 select MIPS_GIC_IPI 2208 select SMP 2209 select SYNC_R4K 2210 select SYS_SUPPORTS_SMP 2211 select WEAK_ORDERING 2212 default n 2213 help 2214 Select this if you are using a bootloader which implements the "CMP 2215 framework" protocol (ie. YAMON) and want your kernel to make use of 2216 its ability to start secondary CPUs. 2217 2218 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2219 instead of this. 2220 2221config MIPS_CPS 2222 bool "MIPS Coherent Processing System support" 2223 depends on SYS_SUPPORTS_MIPS_CPS && !64BIT 2224 select MIPS_CM 2225 select MIPS_CPC 2226 select MIPS_CPS_PM if HOTPLUG_CPU 2227 select MIPS_GIC_IPI 2228 select SMP 2229 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2230 select SYS_SUPPORTS_HOTPLUG_CPU 2231 select SYS_SUPPORTS_SMP 2232 select WEAK_ORDERING 2233 help 2234 Select this if you wish to run an SMP kernel across multiple cores 2235 within a MIPS Coherent Processing System. When this option is 2236 enabled the kernel will probe for other cores and boot them with 2237 no external assistance. It is safe to enable this when hardware 2238 support is unavailable. 2239 2240config MIPS_CPS_PM 2241 depends on MIPS_CPS 2242 select MIPS_CPC 2243 bool 2244 2245config MIPS_GIC_IPI 2246 bool 2247 2248config MIPS_CM 2249 bool 2250 2251config MIPS_CPC 2252 bool 2253 2254config SB1_PASS_1_WORKAROUNDS 2255 bool 2256 depends on CPU_SB1_PASS_1 2257 default y 2258 2259config SB1_PASS_2_WORKAROUNDS 2260 bool 2261 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2262 default y 2263 2264config SB1_PASS_2_1_WORKAROUNDS 2265 bool 2266 depends on CPU_SB1 && CPU_SB1_PASS_2 2267 default y 2268 2269 2270config ARCH_PHYS_ADDR_T_64BIT 2271 bool 2272 2273choice 2274 prompt "SmartMIPS or microMIPS ASE support" 2275 2276config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2277 bool "None" 2278 help 2279 Select this if you want neither microMIPS nor SmartMIPS support 2280 2281config CPU_HAS_SMARTMIPS 2282 depends on SYS_SUPPORTS_SMARTMIPS 2283 bool "SmartMIPS" 2284 help 2285 SmartMIPS is a extension of the MIPS32 architecture aimed at 2286 increased security at both hardware and software level for 2287 smartcards. Enabling this option will allow proper use of the 2288 SmartMIPS instructions by Linux applications. However a kernel with 2289 this option will not work on a MIPS core without SmartMIPS core. If 2290 you don't know you probably don't have SmartMIPS and should say N 2291 here. 2292 2293config CPU_MICROMIPS 2294 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2295 bool "microMIPS" 2296 help 2297 When this option is enabled the kernel will be built using the 2298 microMIPS ISA 2299 2300endchoice 2301 2302config CPU_HAS_MSA 2303 bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)" 2304 depends on CPU_SUPPORTS_MSA 2305 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2306 help 2307 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2308 and a set of SIMD instructions to operate on them. When this option 2309 is enabled the kernel will support allocating & switching MSA 2310 vector register contexts. If you know that your kernel will only be 2311 running on CPUs which do not support MSA or that your userland will 2312 not be making use of it then you may wish to say N here to reduce 2313 the size & complexity of your kernel. 2314 2315 If unsure, say Y. 2316 2317config CPU_HAS_WB 2318 bool 2319 2320config XKS01 2321 bool 2322 2323# 2324# Vectored interrupt mode is an R2 feature 2325# 2326config CPU_MIPSR2_IRQ_VI 2327 bool 2328 2329# 2330# Extended interrupt mode is an R2 feature 2331# 2332config CPU_MIPSR2_IRQ_EI 2333 bool 2334 2335config CPU_HAS_SYNC 2336 bool 2337 depends on !CPU_R3000 2338 default y 2339 2340# 2341# CPU non-features 2342# 2343config CPU_DADDI_WORKAROUNDS 2344 bool 2345 2346config CPU_R4000_WORKAROUNDS 2347 bool 2348 select CPU_R4400_WORKAROUNDS 2349 2350config CPU_R4400_WORKAROUNDS 2351 bool 2352 2353# 2354# - Highmem only makes sense for the 32-bit kernel. 2355# - The current highmem code will only work properly on physically indexed 2356# caches such as R3000, SB1, R7000 or those that look like they're virtually 2357# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2358# moment we protect the user and offer the highmem option only on machines 2359# where it's known to be safe. This will not offer highmem on a few systems 2360# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2361# indexed CPUs but we're playing safe. 2362# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2363# know they might have memory configurations that could make use of highmem 2364# support. 2365# 2366config HIGHMEM 2367 bool "High Memory Support" 2368 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2369 2370config CPU_SUPPORTS_HIGHMEM 2371 bool 2372 2373config SYS_SUPPORTS_HIGHMEM 2374 bool 2375 2376config SYS_SUPPORTS_SMARTMIPS 2377 bool 2378 2379config SYS_SUPPORTS_MICROMIPS 2380 bool 2381 2382config SYS_SUPPORTS_MIPS16 2383 bool 2384 help 2385 This option must be set if a kernel might be executed on a MIPS16- 2386 enabled CPU even if MIPS16 is not actually being used. In other 2387 words, it makes the kernel MIPS16-tolerant. 2388 2389config CPU_SUPPORTS_MSA 2390 bool 2391 2392config ARCH_FLATMEM_ENABLE 2393 def_bool y 2394 depends on !NUMA && !CPU_LOONGSON2 2395 2396config ARCH_DISCONTIGMEM_ENABLE 2397 bool 2398 default y if SGI_IP27 2399 help 2400 Say Y to support efficient handling of discontiguous physical memory, 2401 for architectures which are either NUMA (Non-Uniform Memory Access) 2402 or have huge holes in the physical address space for other reasons. 2403 See <file:Documentation/vm/numa> for more. 2404 2405config ARCH_SPARSEMEM_ENABLE 2406 bool 2407 select SPARSEMEM_STATIC 2408 2409config NUMA 2410 bool "NUMA Support" 2411 depends on SYS_SUPPORTS_NUMA 2412 help 2413 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2414 Access). This option improves performance on systems with more 2415 than two nodes; on two node systems it is generally better to 2416 leave it disabled; on single node systems disable this option 2417 disabled. 2418 2419config SYS_SUPPORTS_NUMA 2420 bool 2421 2422config NODES_SHIFT 2423 int 2424 default "6" 2425 depends on NEED_MULTIPLE_NODES 2426 2427config HW_PERF_EVENTS 2428 bool "Enable hardware performance counter support for perf events" 2429 depends on PERF_EVENTS && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2430 default y 2431 help 2432 Enable hardware performance counter support for perf events. If 2433 disabled, perf events will use software events only. 2434 2435source "mm/Kconfig" 2436 2437config SMP 2438 bool "Multi-Processing support" 2439 depends on SYS_SUPPORTS_SMP 2440 help 2441 This enables support for systems with more than one CPU. If you have 2442 a system with only one CPU, say N. If you have a system with more 2443 than one CPU, say Y. 2444 2445 If you say N here, the kernel will run on uni- and multiprocessor 2446 machines, but will use only one CPU of a multiprocessor machine. If 2447 you say Y here, the kernel will run on many, but not all, 2448 uniprocessor machines. On a uniprocessor machine, the kernel 2449 will run faster if you say N here. 2450 2451 People using multiprocessor machines who say Y here should also say 2452 Y to "Enhanced Real Time Clock Support", below. 2453 2454 See also the SMP-HOWTO available at 2455 <http://www.tldp.org/docs.html#howto>. 2456 2457 If you don't know what to do here, say N. 2458 2459config SMP_UP 2460 bool 2461 2462config SYS_SUPPORTS_MIPS_CMP 2463 bool 2464 2465config SYS_SUPPORTS_MIPS_CPS 2466 bool 2467 2468config SYS_SUPPORTS_SMP 2469 bool 2470 2471config NR_CPUS_DEFAULT_4 2472 bool 2473 2474config NR_CPUS_DEFAULT_8 2475 bool 2476 2477config NR_CPUS_DEFAULT_16 2478 bool 2479 2480config NR_CPUS_DEFAULT_32 2481 bool 2482 2483config NR_CPUS_DEFAULT_64 2484 bool 2485 2486config NR_CPUS 2487 int "Maximum number of CPUs (2-256)" 2488 range 2 256 2489 depends on SMP 2490 default "4" if NR_CPUS_DEFAULT_4 2491 default "8" if NR_CPUS_DEFAULT_8 2492 default "16" if NR_CPUS_DEFAULT_16 2493 default "32" if NR_CPUS_DEFAULT_32 2494 default "64" if NR_CPUS_DEFAULT_64 2495 help 2496 This allows you to specify the maximum number of CPUs which this 2497 kernel will support. The maximum supported value is 32 for 32-bit 2498 kernel and 64 for 64-bit kernels; the minimum value which makes 2499 sense is 1 for Qemu (useful only for kernel debugging purposes) 2500 and 2 for all others. 2501 2502 This is purely to save memory - each supported CPU adds 2503 approximately eight kilobytes to the kernel image. For best 2504 performance should round up your number of processors to the next 2505 power of two. 2506 2507config MIPS_PERF_SHARED_TC_COUNTERS 2508 bool 2509 2510# 2511# Timer Interrupt Frequency Configuration 2512# 2513 2514choice 2515 prompt "Timer frequency" 2516 default HZ_250 2517 help 2518 Allows the configuration of the timer frequency. 2519 2520 config HZ_48 2521 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2522 2523 config HZ_100 2524 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2525 2526 config HZ_128 2527 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2528 2529 config HZ_250 2530 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2531 2532 config HZ_256 2533 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2534 2535 config HZ_1000 2536 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2537 2538 config HZ_1024 2539 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2540 2541endchoice 2542 2543config SYS_SUPPORTS_48HZ 2544 bool 2545 2546config SYS_SUPPORTS_100HZ 2547 bool 2548 2549config SYS_SUPPORTS_128HZ 2550 bool 2551 2552config SYS_SUPPORTS_250HZ 2553 bool 2554 2555config SYS_SUPPORTS_256HZ 2556 bool 2557 2558config SYS_SUPPORTS_1000HZ 2559 bool 2560 2561config SYS_SUPPORTS_1024HZ 2562 bool 2563 2564config SYS_SUPPORTS_ARBIT_HZ 2565 bool 2566 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2567 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2568 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2569 !SYS_SUPPORTS_1024HZ 2570 2571config HZ 2572 int 2573 default 48 if HZ_48 2574 default 100 if HZ_100 2575 default 128 if HZ_128 2576 default 250 if HZ_250 2577 default 256 if HZ_256 2578 default 1000 if HZ_1000 2579 default 1024 if HZ_1024 2580 2581config SCHED_HRTICK 2582 def_bool HIGH_RES_TIMERS 2583 2584source "kernel/Kconfig.preempt" 2585 2586config KEXEC 2587 bool "Kexec system call" 2588 help 2589 kexec is a system call that implements the ability to shutdown your 2590 current kernel, and to start another kernel. It is like a reboot 2591 but it is independent of the system firmware. And like a reboot 2592 you can start any kernel with it, not just Linux. 2593 2594 The name comes from the similarity to the exec system call. 2595 2596 It is an ongoing process to be certain the hardware in a machine 2597 is properly shutdown, so do not be surprised if this code does not 2598 initially work for you. As of this writing the exact hardware 2599 interface is strongly in flux, so no good recommendation can be 2600 made. 2601 2602config CRASH_DUMP 2603 bool "Kernel crash dumps" 2604 help 2605 Generate crash dump after being started by kexec. 2606 This should be normally only set in special crash dump kernels 2607 which are loaded in the main kernel with kexec-tools into 2608 a specially reserved region and then later executed after 2609 a crash by kdump/kexec. The crash dump kernel must be compiled 2610 to a memory address not used by the main kernel or firmware using 2611 PHYSICAL_START. 2612 2613config PHYSICAL_START 2614 hex "Physical address where the kernel is loaded" 2615 default "0xffffffff84000000" if 64BIT 2616 default "0x84000000" if 32BIT 2617 depends on CRASH_DUMP 2618 help 2619 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2620 If you plan to use kernel for capturing the crash dump change 2621 this value to start of the reserved region (the "X" value as 2622 specified in the "crashkernel=YM@XM" command line boot parameter 2623 passed to the panic-ed kernel). 2624 2625config SECCOMP 2626 bool "Enable seccomp to safely compute untrusted bytecode" 2627 depends on PROC_FS 2628 default y 2629 help 2630 This kernel feature is useful for number crunching applications 2631 that may need to compute untrusted bytecode during their 2632 execution. By using pipes or other transports made available to 2633 the process as file descriptors supporting the read/write 2634 syscalls, it's possible to isolate those applications in 2635 their own address space using seccomp. Once seccomp is 2636 enabled via /proc/<pid>/seccomp, it cannot be disabled 2637 and the task is only allowed to execute a few safe syscalls 2638 defined by each seccomp mode. 2639 2640 If unsure, say Y. Only embedded should say N here. 2641 2642config MIPS_O32_FP64_SUPPORT 2643 bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)" 2644 depends on 32BIT || MIPS32_O32 2645 help 2646 When this is enabled, the kernel will support use of 64-bit floating 2647 point registers with binaries using the O32 ABI along with the 2648 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2649 32-bit MIPS systems this support is at the cost of increasing the 2650 size and complexity of the compiled FPU emulator. Thus if you are 2651 running a MIPS32 system and know that none of your userland binaries 2652 will require 64-bit floating point, you may wish to reduce the size 2653 of your kernel & potentially improve FP emulation performance by 2654 saying N here. 2655 2656 Although binutils currently supports use of this flag the details 2657 concerning its effect upon the O32 ABI in userland are still being 2658 worked on. In order to avoid userland becoming dependant upon current 2659 behaviour before the details have been finalised, this option should 2660 be considered experimental and only enabled by those working upon 2661 said details. 2662 2663 If unsure, say N. 2664 2665config USE_OF 2666 bool 2667 select OF 2668 select OF_EARLY_FLATTREE 2669 select IRQ_DOMAIN 2670 2671config BUILTIN_DTB 2672 bool 2673 2674endmenu 2675 2676config LOCKDEP_SUPPORT 2677 bool 2678 default y 2679 2680config STACKTRACE_SUPPORT 2681 bool 2682 default y 2683 2684config PGTABLE_LEVELS 2685 int 2686 default 3 if 64BIT && !PAGE_SIZE_64KB 2687 default 2 2688 2689source "init/Kconfig" 2690 2691source "kernel/Kconfig.freezer" 2692 2693menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2694 2695config HW_HAS_EISA 2696 bool 2697config HW_HAS_PCI 2698 bool 2699 2700config PCI 2701 bool "Support for PCI controller" 2702 depends on HW_HAS_PCI 2703 select PCI_DOMAINS 2704 select NO_GENERIC_PCI_IOPORT_MAP 2705 help 2706 Find out whether you have a PCI motherboard. PCI is the name of a 2707 bus system, i.e. the way the CPU talks to the other stuff inside 2708 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2709 say Y, otherwise N. 2710 2711config HT_PCI 2712 bool "Support for HT-linked PCI" 2713 default y 2714 depends on CPU_LOONGSON3 2715 select PCI 2716 select PCI_DOMAINS 2717 help 2718 Loongson family machines use Hyper-Transport bus for inter-core 2719 connection and device connection. The PCI bus is a subordinate 2720 linked at HT. Choose Y for Loongson-3 based machines. 2721 2722config PCI_DOMAINS 2723 bool 2724 2725source "drivers/pci/Kconfig" 2726 2727source "drivers/pci/pcie/Kconfig" 2728 2729# 2730# ISA support is now enabled via select. Too many systems still have the one 2731# or other ISA chip on the board that users don't know about so don't expect 2732# users to choose the right thing ... 2733# 2734config ISA 2735 bool 2736 2737config EISA 2738 bool "EISA support" 2739 depends on HW_HAS_EISA 2740 select ISA 2741 select GENERIC_ISA_DMA 2742 ---help--- 2743 The Extended Industry Standard Architecture (EISA) bus was 2744 developed as an open alternative to the IBM MicroChannel bus. 2745 2746 The EISA bus provided some of the features of the IBM MicroChannel 2747 bus while maintaining backward compatibility with cards made for 2748 the older ISA bus. The EISA bus saw limited use between 1988 and 2749 1995 when it was made obsolete by the PCI bus. 2750 2751 Say Y here if you are building a kernel for an EISA-based machine. 2752 2753 Otherwise, say N. 2754 2755source "drivers/eisa/Kconfig" 2756 2757config TC 2758 bool "TURBOchannel support" 2759 depends on MACH_DECSTATION 2760 help 2761 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2762 processors. TURBOchannel programming specifications are available 2763 at: 2764 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2765 and: 2766 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2767 Linux driver support status is documented at: 2768 <http://www.linux-mips.org/wiki/DECstation> 2769 2770config MMU 2771 bool 2772 default y 2773 2774config I8253 2775 bool 2776 select CLKSRC_I8253 2777 select CLKEVT_I8253 2778 select MIPS_EXTERNAL_TIMER 2779 2780config ZONE_DMA 2781 bool 2782 2783config ZONE_DMA32 2784 bool 2785 2786source "drivers/pcmcia/Kconfig" 2787 2788source "drivers/pci/hotplug/Kconfig" 2789 2790config RAPIDIO 2791 tristate "RapidIO support" 2792 depends on PCI 2793 default n 2794 help 2795 If you say Y here, the kernel will include drivers and 2796 infrastructure code to support RapidIO interconnect devices. 2797 2798source "drivers/rapidio/Kconfig" 2799 2800endmenu 2801 2802menu "Executable file formats" 2803 2804source "fs/Kconfig.binfmt" 2805 2806config TRAD_SIGNALS 2807 bool 2808 2809config MIPS32_COMPAT 2810 bool 2811 2812config COMPAT 2813 bool 2814 2815config SYSVIPC_COMPAT 2816 bool 2817 2818config MIPS32_O32 2819 bool "Kernel support for o32 binaries" 2820 depends on 64BIT 2821 select ARCH_WANT_OLD_COMPAT_IPC 2822 select COMPAT 2823 select MIPS32_COMPAT 2824 select SYSVIPC_COMPAT if SYSVIPC 2825 help 2826 Select this option if you want to run o32 binaries. These are pure 2827 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2828 existing binaries are in this format. 2829 2830 If unsure, say Y. 2831 2832config MIPS32_N32 2833 bool "Kernel support for n32 binaries" 2834 depends on 64BIT 2835 select COMPAT 2836 select MIPS32_COMPAT 2837 select SYSVIPC_COMPAT if SYSVIPC 2838 help 2839 Select this option if you want to run n32 binaries. These are 2840 64-bit binaries using 32-bit quantities for addressing and certain 2841 data that would normally be 64-bit. They are used in special 2842 cases. 2843 2844 If unsure, say N. 2845 2846config BINFMT_ELF32 2847 bool 2848 default y if MIPS32_O32 || MIPS32_N32 2849 2850endmenu 2851 2852menu "Power management options" 2853 2854config ARCH_HIBERNATION_POSSIBLE 2855 def_bool y 2856 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2857 2858config ARCH_SUSPEND_POSSIBLE 2859 def_bool y 2860 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2861 2862source "kernel/power/Kconfig" 2863 2864endmenu 2865 2866config MIPS_EXTERNAL_TIMER 2867 bool 2868 2869menu "CPU Power Management" 2870 2871if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2872source "drivers/cpufreq/Kconfig" 2873endif 2874 2875source "drivers/cpuidle/Kconfig" 2876 2877endmenu 2878 2879source "net/Kconfig" 2880 2881source "drivers/Kconfig" 2882 2883source "drivers/firmware/Kconfig" 2884 2885source "fs/Kconfig" 2886 2887source "arch/mips/Kconfig.debug" 2888 2889source "security/Kconfig" 2890 2891source "crypto/Kconfig" 2892 2893source "lib/Kconfig" 2894 2895source "arch/mips/kvm/Kconfig" 2896