1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_PERF_EVENTS 8 select PERF_USE_VMALLOC 9 select HAVE_ARCH_KGDB 10 select ARCH_HAVE_CUSTOM_GPIO_H 11 select HAVE_FUNCTION_TRACER 12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 13 select HAVE_DYNAMIC_FTRACE 14 select HAVE_FTRACE_MCOUNT_RECORD 15 select HAVE_C_RECORDMCOUNT 16 select HAVE_FUNCTION_GRAPH_TRACER 17 select HAVE_KPROBES 18 select HAVE_KRETPROBES 19 select HAVE_DEBUG_KMEMLEAK 20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 22 select RTC_LIB if !MACH_LOONGSON 23 select GENERIC_ATOMIC64 if !64BIT 24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 25 select HAVE_DMA_ATTRS 26 select HAVE_DMA_API_DEBUG 27 select HAVE_GENERIC_HARDIRQS 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select HAVE_ARCH_JUMP_LABEL 31 select ARCH_WANT_IPC_PARSE_VERSION 32 select IRQ_FORCED_THREADING 33 select HAVE_MEMBLOCK 34 select HAVE_MEMBLOCK_NODE_MAP 35 select ARCH_DISCARD_MEMBLOCK 36 select GENERIC_SMP_IDLE_THREAD 37 select BUILDTIME_EXTABLE_SORT 38 select GENERIC_CLOCKEVENTS 39 select GENERIC_CMOS_UPDATE 40 select HAVE_MOD_ARCH_SPECIFIC 41 select VIRT_TO_BUS 42 select MODULES_USE_ELF_REL if MODULES 43 select MODULES_USE_ELF_RELA if MODULES && 64BIT 44 select CLONE_BACKWARDS 45 46menu "Machine selection" 47 48config ZONE_DMA 49 bool 50 51choice 52 prompt "System type" 53 default SGI_IP22 54 55config MIPS_ALCHEMY 56 bool "Alchemy processor based machines" 57 select 64BIT_PHYS_ADDR 58 select CEVT_R4K 59 select CSRC_R4K 60 select IRQ_CPU 61 select SYS_HAS_CPU_MIPS32_R1 62 select SYS_SUPPORTS_32BIT_KERNEL 63 select SYS_SUPPORTS_APM_EMULATION 64 select ARCH_REQUIRE_GPIOLIB 65 select SYS_SUPPORTS_ZBOOT 66 select USB_ARCH_HAS_OHCI 67 select USB_ARCH_HAS_EHCI 68 69config AR7 70 bool "Texas Instruments AR7" 71 select BOOT_ELF32 72 select DMA_NONCOHERENT 73 select CEVT_R4K 74 select CSRC_R4K 75 select IRQ_CPU 76 select NO_EXCEPT_FILL 77 select SWAP_IO_SPACE 78 select SYS_HAS_CPU_MIPS32_R1 79 select SYS_HAS_EARLY_PRINTK 80 select SYS_SUPPORTS_32BIT_KERNEL 81 select SYS_SUPPORTS_LITTLE_ENDIAN 82 select SYS_SUPPORTS_ZBOOT_UART16550 83 select ARCH_REQUIRE_GPIOLIB 84 select VLYNQ 85 select HAVE_CLK 86 help 87 Support for the Texas Instruments AR7 System-on-a-Chip 88 family: TNETD7100, 7200 and 7300. 89 90config ATH79 91 bool "Atheros AR71XX/AR724X/AR913X based boards" 92 select ARCH_REQUIRE_GPIOLIB 93 select BOOT_RAW 94 select CEVT_R4K 95 select CSRC_R4K 96 select DMA_NONCOHERENT 97 select HAVE_CLK 98 select IRQ_CPU 99 select MIPS_MACHINE 100 select SYS_HAS_CPU_MIPS32_R2 101 select SYS_HAS_EARLY_PRINTK 102 select SYS_SUPPORTS_32BIT_KERNEL 103 select SYS_SUPPORTS_BIG_ENDIAN 104 help 105 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 106 107config BCM47XX 108 bool "Broadcom BCM47XX based boards" 109 select ARCH_WANT_OPTIONAL_GPIOLIB 110 select BOOT_RAW 111 select CEVT_R4K 112 select CSRC_R4K 113 select DMA_NONCOHERENT 114 select FW_CFE 115 select HW_HAS_PCI 116 select IRQ_CPU 117 select NO_EXCEPT_FILL 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_SUPPORTS_LITTLE_ENDIAN 120 select SYS_HAS_EARLY_PRINTK 121 help 122 Support for BCM47XX based boards 123 124config BCM63XX 125 bool "Broadcom BCM63XX based boards" 126 select CEVT_R4K 127 select CSRC_R4K 128 select DMA_NONCOHERENT 129 select IRQ_CPU 130 select SYS_HAS_CPU_MIPS32_R1 131 select SYS_SUPPORTS_32BIT_KERNEL 132 select SYS_SUPPORTS_BIG_ENDIAN 133 select SYS_HAS_EARLY_PRINTK 134 select SWAP_IO_SPACE 135 select ARCH_REQUIRE_GPIOLIB 136 select HAVE_CLK 137 help 138 Support for BCM63XX based boards 139 140config MIPS_COBALT 141 bool "Cobalt Server" 142 select CEVT_R4K 143 select CSRC_R4K 144 select CEVT_GT641XX 145 select DMA_NONCOHERENT 146 select HW_HAS_PCI 147 select I8253 148 select I8259 149 select IRQ_CPU 150 select IRQ_GT641XX 151 select PCI_GT64XXX_PCI0 152 select PCI 153 select SYS_HAS_CPU_NEVADA 154 select SYS_HAS_EARLY_PRINTK 155 select SYS_SUPPORTS_32BIT_KERNEL 156 select SYS_SUPPORTS_64BIT_KERNEL 157 select SYS_SUPPORTS_LITTLE_ENDIAN 158 159config MACH_DECSTATION 160 bool "DECstations" 161 select BOOT_ELF32 162 select CEVT_DS1287 163 select CEVT_R4K 164 select CSRC_IOASIC 165 select CSRC_R4K 166 select CPU_DADDI_WORKAROUNDS if 64BIT 167 select CPU_R4000_WORKAROUNDS if 64BIT 168 select CPU_R4400_WORKAROUNDS if 64BIT 169 select DMA_NONCOHERENT 170 select NO_IOPORT 171 select IRQ_CPU 172 select SYS_HAS_CPU_R3000 173 select SYS_HAS_CPU_R4X00 174 select SYS_SUPPORTS_32BIT_KERNEL 175 select SYS_SUPPORTS_64BIT_KERNEL 176 select SYS_SUPPORTS_LITTLE_ENDIAN 177 select SYS_SUPPORTS_128HZ 178 select SYS_SUPPORTS_256HZ 179 select SYS_SUPPORTS_1024HZ 180 help 181 This enables support for DEC's MIPS based workstations. For details 182 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 183 DECstation porting pages on <http://decstation.unix-ag.org/>. 184 185 If you have one of the following DECstation Models you definitely 186 want to choose R4xx0 for the CPU Type: 187 188 DECstation 5000/50 189 DECstation 5000/150 190 DECstation 5000/260 191 DECsystem 5900/260 192 193 otherwise choose R3000. 194 195config MACH_JAZZ 196 bool "Jazz family of machines" 197 select FW_ARC 198 select FW_ARC32 199 select ARCH_MAY_HAVE_PC_FDC 200 select CEVT_R4K 201 select CSRC_R4K 202 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 203 select GENERIC_ISA_DMA 204 select HAVE_PCSPKR_PLATFORM 205 select IRQ_CPU 206 select I8253 207 select I8259 208 select ISA 209 select SYS_HAS_CPU_R4X00 210 select SYS_SUPPORTS_32BIT_KERNEL 211 select SYS_SUPPORTS_64BIT_KERNEL 212 select SYS_SUPPORTS_100HZ 213 help 214 This a family of machines based on the MIPS R4030 chipset which was 215 used by several vendors to build RISC/os and Windows NT workstations. 216 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 217 Olivetti M700-10 workstations. 218 219config MACH_JZ4740 220 bool "Ingenic JZ4740 based machines" 221 select SYS_HAS_CPU_MIPS32_R1 222 select SYS_SUPPORTS_32BIT_KERNEL 223 select SYS_SUPPORTS_LITTLE_ENDIAN 224 select SYS_SUPPORTS_ZBOOT_UART16550 225 select DMA_NONCOHERENT 226 select IRQ_CPU 227 select ARCH_REQUIRE_GPIOLIB 228 select SYS_HAS_EARLY_PRINTK 229 select HAVE_PWM 230 select HAVE_CLK 231 select GENERIC_IRQ_CHIP 232 233config LANTIQ 234 bool "Lantiq based platforms" 235 select DMA_NONCOHERENT 236 select IRQ_CPU 237 select CEVT_R4K 238 select CSRC_R4K 239 select SYS_HAS_CPU_MIPS32_R1 240 select SYS_HAS_CPU_MIPS32_R2 241 select SYS_SUPPORTS_BIG_ENDIAN 242 select SYS_SUPPORTS_32BIT_KERNEL 243 select SYS_SUPPORTS_MULTITHREADING 244 select SYS_HAS_EARLY_PRINTK 245 select ARCH_REQUIRE_GPIOLIB 246 select SWAP_IO_SPACE 247 select BOOT_RAW 248 select HAVE_MACH_CLKDEV 249 select CLKDEV_LOOKUP 250 select USE_OF 251 select PINCTRL 252 select PINCTRL_LANTIQ 253 254config LASAT 255 bool "LASAT Networks platforms" 256 select CEVT_R4K 257 select CSRC_R4K 258 select DMA_NONCOHERENT 259 select SYS_HAS_EARLY_PRINTK 260 select HW_HAS_PCI 261 select IRQ_CPU 262 select PCI_GT64XXX_PCI0 263 select MIPS_NILE4 264 select R5000_CPU_SCACHE 265 select SYS_HAS_CPU_R5000 266 select SYS_SUPPORTS_32BIT_KERNEL 267 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 268 select SYS_SUPPORTS_LITTLE_ENDIAN 269 270config MACH_LOONGSON 271 bool "Loongson family of machines" 272 select SYS_SUPPORTS_ZBOOT 273 help 274 This enables the support of Loongson family of machines. 275 276 Loongson is a family of general-purpose MIPS-compatible CPUs. 277 developed at Institute of Computing Technology (ICT), 278 Chinese Academy of Sciences (CAS) in the People's Republic 279 of China. The chief architect is Professor Weiwu Hu. 280 281config MACH_LOONGSON1 282 bool "Loongson 1 family of machines" 283 select SYS_SUPPORTS_ZBOOT 284 help 285 This enables support for the Loongson 1 based machines. 286 287 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 288 the ICT (Institute of Computing Technology) and the Chinese Academy 289 of Sciences. 290 291config MIPS_MALTA 292 bool "MIPS Malta board" 293 select ARCH_MAY_HAVE_PC_FDC 294 select BOOT_ELF32 295 select BOOT_RAW 296 select CEVT_R4K 297 select CSRC_R4K 298 select CSRC_GIC 299 select DMA_NONCOHERENT 300 select GENERIC_ISA_DMA 301 select HAVE_PCSPKR_PLATFORM 302 select IRQ_CPU 303 select IRQ_GIC 304 select HW_HAS_PCI 305 select I8253 306 select I8259 307 select MIPS_BONITO64 308 select MIPS_CPU_SCACHE 309 select PCI_GT64XXX_PCI0 310 select MIPS_MSC 311 select SWAP_IO_SPACE 312 select SYS_HAS_CPU_MIPS32_R1 313 select SYS_HAS_CPU_MIPS32_R2 314 select SYS_HAS_CPU_MIPS64_R1 315 select SYS_HAS_CPU_MIPS64_R2 316 select SYS_HAS_CPU_NEVADA 317 select SYS_HAS_CPU_RM7000 318 select SYS_HAS_EARLY_PRINTK 319 select SYS_SUPPORTS_32BIT_KERNEL 320 select SYS_SUPPORTS_64BIT_KERNEL 321 select SYS_SUPPORTS_BIG_ENDIAN 322 select SYS_SUPPORTS_LITTLE_ENDIAN 323 select SYS_SUPPORTS_MIPS_CMP 324 select SYS_SUPPORTS_MULTITHREADING 325 select SYS_SUPPORTS_SMARTMIPS 326 select SYS_SUPPORTS_ZBOOT 327 help 328 This enables support for the MIPS Technologies Malta evaluation 329 board. 330 331config MIPS_SEAD3 332 bool "MIPS SEAD3 board" 333 select BOOT_ELF32 334 select BOOT_RAW 335 select CEVT_R4K 336 select CSRC_R4K 337 select CSRC_GIC 338 select CPU_MIPSR2_IRQ_VI 339 select CPU_MIPSR2_IRQ_EI 340 select DMA_NONCOHERENT 341 select IRQ_CPU 342 select IRQ_GIC 343 select MIPS_CPU_SCACHE 344 select MIPS_MSC 345 select SYS_HAS_CPU_MIPS32_R1 346 select SYS_HAS_CPU_MIPS32_R2 347 select SYS_HAS_CPU_MIPS64_R1 348 select SYS_HAS_EARLY_PRINTK 349 select SYS_SUPPORTS_32BIT_KERNEL 350 select SYS_SUPPORTS_64BIT_KERNEL 351 select SYS_SUPPORTS_BIG_ENDIAN 352 select SYS_SUPPORTS_LITTLE_ENDIAN 353 select SYS_SUPPORTS_SMARTMIPS 354 select SYS_SUPPORTS_MICROMIPS 355 select USB_ARCH_HAS_EHCI 356 select USB_EHCI_BIG_ENDIAN_DESC 357 select USB_EHCI_BIG_ENDIAN_MMIO 358 select USE_OF 359 help 360 This enables support for the MIPS Technologies SEAD3 evaluation 361 board. 362 363config NEC_MARKEINS 364 bool "NEC EMMA2RH Mark-eins board" 365 select SOC_EMMA2RH 366 select HW_HAS_PCI 367 help 368 This enables support for the NEC Electronics Mark-eins boards. 369 370config MACH_VR41XX 371 bool "NEC VR4100 series based machines" 372 select CEVT_R4K 373 select CSRC_R4K 374 select SYS_HAS_CPU_VR41XX 375 select ARCH_REQUIRE_GPIOLIB 376 377config NXP_STB220 378 bool "NXP STB220 board" 379 select SOC_PNX833X 380 help 381 Support for NXP Semiconductors STB220 Development Board. 382 383config NXP_STB225 384 bool "NXP 225 board" 385 select SOC_PNX833X 386 select SOC_PNX8335 387 help 388 Support for NXP Semiconductors STB225 Development Board. 389 390config PMC_MSP 391 bool "PMC-Sierra MSP chipsets" 392 select CEVT_R4K 393 select CSRC_R4K 394 select DMA_NONCOHERENT 395 select SWAP_IO_SPACE 396 select NO_EXCEPT_FILL 397 select BOOT_RAW 398 select SYS_HAS_CPU_MIPS32_R1 399 select SYS_HAS_CPU_MIPS32_R2 400 select SYS_SUPPORTS_32BIT_KERNEL 401 select SYS_SUPPORTS_BIG_ENDIAN 402 select IRQ_CPU 403 select SERIAL_8250 404 select SERIAL_8250_CONSOLE 405 select USB_EHCI_BIG_ENDIAN_MMIO 406 select USB_EHCI_BIG_ENDIAN_DESC 407 help 408 This adds support for the PMC-Sierra family of Multi-Service 409 Processor System-On-A-Chips. These parts include a number 410 of integrated peripherals, interfaces and DSPs in addition to 411 a variety of MIPS cores. 412 413config POWERTV 414 bool "Cisco PowerTV" 415 select BOOT_ELF32 416 select CEVT_R4K 417 select CPU_MIPSR2_IRQ_VI 418 select CPU_MIPSR2_IRQ_EI 419 select CSRC_POWERTV 420 select DMA_NONCOHERENT 421 select HW_HAS_PCI 422 select SYS_HAS_EARLY_PRINTK 423 select SYS_HAS_CPU_MIPS32_R2 424 select SYS_SUPPORTS_32BIT_KERNEL 425 select SYS_SUPPORTS_BIG_ENDIAN 426 select SYS_SUPPORTS_HIGHMEM 427 select USB_OHCI_LITTLE_ENDIAN 428 help 429 This enables support for the Cisco PowerTV Platform. 430 431config RALINK 432 bool "Ralink based machines" 433 select CEVT_R4K 434 select CSRC_R4K 435 select BOOT_RAW 436 select DMA_NONCOHERENT 437 select IRQ_CPU 438 select USE_OF 439 select SYS_HAS_CPU_MIPS32_R1 440 select SYS_HAS_CPU_MIPS32_R2 441 select SYS_SUPPORTS_32BIT_KERNEL 442 select SYS_SUPPORTS_LITTLE_ENDIAN 443 select SYS_HAS_EARLY_PRINTK 444 select HAVE_MACH_CLKDEV 445 select CLKDEV_LOOKUP 446 447config SGI_IP22 448 bool "SGI IP22 (Indy/Indigo2)" 449 select FW_ARC 450 select FW_ARC32 451 select BOOT_ELF32 452 select CEVT_R4K 453 select CSRC_R4K 454 select DEFAULT_SGI_PARTITION 455 select DMA_NONCOHERENT 456 select HW_HAS_EISA 457 select I8253 458 select I8259 459 select IP22_CPU_SCACHE 460 select IRQ_CPU 461 select GENERIC_ISA_DMA_SUPPORT_BROKEN 462 select SGI_HAS_I8042 463 select SGI_HAS_INDYDOG 464 select SGI_HAS_HAL2 465 select SGI_HAS_SEEQ 466 select SGI_HAS_WD93 467 select SGI_HAS_ZILOG 468 select SWAP_IO_SPACE 469 select SYS_HAS_CPU_R4X00 470 select SYS_HAS_CPU_R5000 471 # 472 # Disable EARLY_PRINTK for now since it leads to overwritten prom 473 # memory during early boot on some machines. 474 # 475 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 476 # for a more details discussion 477 # 478 # select SYS_HAS_EARLY_PRINTK 479 select SYS_SUPPORTS_32BIT_KERNEL 480 select SYS_SUPPORTS_64BIT_KERNEL 481 select SYS_SUPPORTS_BIG_ENDIAN 482 help 483 This are the SGI Indy, Challenge S and Indigo2, as well as certain 484 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 485 that runs on these, say Y here. 486 487config SGI_IP27 488 bool "SGI IP27 (Origin200/2000)" 489 select FW_ARC 490 select FW_ARC64 491 select BOOT_ELF64 492 select DEFAULT_SGI_PARTITION 493 select DMA_COHERENT 494 select SYS_HAS_EARLY_PRINTK 495 select HW_HAS_PCI 496 select NR_CPUS_DEFAULT_64 497 select SYS_HAS_CPU_R10000 498 select SYS_SUPPORTS_64BIT_KERNEL 499 select SYS_SUPPORTS_BIG_ENDIAN 500 select SYS_SUPPORTS_NUMA 501 select SYS_SUPPORTS_SMP 502 help 503 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 504 workstations. To compile a Linux kernel that runs on these, say Y 505 here. 506 507config SGI_IP28 508 bool "SGI IP28 (Indigo2 R10k)" 509 select FW_ARC 510 select FW_ARC64 511 select BOOT_ELF64 512 select CEVT_R4K 513 select CSRC_R4K 514 select DEFAULT_SGI_PARTITION 515 select DMA_NONCOHERENT 516 select GENERIC_ISA_DMA_SUPPORT_BROKEN 517 select IRQ_CPU 518 select HW_HAS_EISA 519 select I8253 520 select I8259 521 select SGI_HAS_I8042 522 select SGI_HAS_INDYDOG 523 select SGI_HAS_HAL2 524 select SGI_HAS_SEEQ 525 select SGI_HAS_WD93 526 select SGI_HAS_ZILOG 527 select SWAP_IO_SPACE 528 select SYS_HAS_CPU_R10000 529 # 530 # Disable EARLY_PRINTK for now since it leads to overwritten prom 531 # memory during early boot on some machines. 532 # 533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 534 # for a more details discussion 535 # 536 # select SYS_HAS_EARLY_PRINTK 537 select SYS_SUPPORTS_64BIT_KERNEL 538 select SYS_SUPPORTS_BIG_ENDIAN 539 help 540 This is the SGI Indigo2 with R10000 processor. To compile a Linux 541 kernel that runs on these, say Y here. 542 543config SGI_IP32 544 bool "SGI IP32 (O2)" 545 select FW_ARC 546 select FW_ARC32 547 select BOOT_ELF32 548 select CEVT_R4K 549 select CSRC_R4K 550 select DMA_NONCOHERENT 551 select HW_HAS_PCI 552 select IRQ_CPU 553 select R5000_CPU_SCACHE 554 select RM7000_CPU_SCACHE 555 select SYS_HAS_CPU_R5000 556 select SYS_HAS_CPU_R10000 if BROKEN 557 select SYS_HAS_CPU_RM7000 558 select SYS_HAS_CPU_NEVADA 559 select SYS_SUPPORTS_64BIT_KERNEL 560 select SYS_SUPPORTS_BIG_ENDIAN 561 help 562 If you want this kernel to run on SGI O2 workstation, say Y here. 563 564config SIBYTE_CRHINE 565 bool "Sibyte BCM91120C-CRhine" 566 select BOOT_ELF32 567 select DMA_COHERENT 568 select SIBYTE_BCM1120 569 select SWAP_IO_SPACE 570 select SYS_HAS_CPU_SB1 571 select SYS_SUPPORTS_BIG_ENDIAN 572 select SYS_SUPPORTS_LITTLE_ENDIAN 573 574config SIBYTE_CARMEL 575 bool "Sibyte BCM91120x-Carmel" 576 select BOOT_ELF32 577 select DMA_COHERENT 578 select SIBYTE_BCM1120 579 select SWAP_IO_SPACE 580 select SYS_HAS_CPU_SB1 581 select SYS_SUPPORTS_BIG_ENDIAN 582 select SYS_SUPPORTS_LITTLE_ENDIAN 583 584config SIBYTE_CRHONE 585 bool "Sibyte BCM91125C-CRhone" 586 select BOOT_ELF32 587 select DMA_COHERENT 588 select SIBYTE_BCM1125 589 select SWAP_IO_SPACE 590 select SYS_HAS_CPU_SB1 591 select SYS_SUPPORTS_BIG_ENDIAN 592 select SYS_SUPPORTS_HIGHMEM 593 select SYS_SUPPORTS_LITTLE_ENDIAN 594 595config SIBYTE_RHONE 596 bool "Sibyte BCM91125E-Rhone" 597 select BOOT_ELF32 598 select DMA_COHERENT 599 select SIBYTE_BCM1125H 600 select SWAP_IO_SPACE 601 select SYS_HAS_CPU_SB1 602 select SYS_SUPPORTS_BIG_ENDIAN 603 select SYS_SUPPORTS_LITTLE_ENDIAN 604 605config SIBYTE_SWARM 606 bool "Sibyte BCM91250A-SWARM" 607 select BOOT_ELF32 608 select DMA_COHERENT 609 select HAVE_PATA_PLATFORM 610 select NR_CPUS_DEFAULT_2 611 select SIBYTE_SB1250 612 select SWAP_IO_SPACE 613 select SYS_HAS_CPU_SB1 614 select SYS_SUPPORTS_BIG_ENDIAN 615 select SYS_SUPPORTS_HIGHMEM 616 select SYS_SUPPORTS_LITTLE_ENDIAN 617 select ZONE_DMA32 if 64BIT 618 619config SIBYTE_LITTLESUR 620 bool "Sibyte BCM91250C2-LittleSur" 621 select BOOT_ELF32 622 select DMA_COHERENT 623 select HAVE_PATA_PLATFORM 624 select NR_CPUS_DEFAULT_2 625 select SIBYTE_SB1250 626 select SWAP_IO_SPACE 627 select SYS_HAS_CPU_SB1 628 select SYS_SUPPORTS_BIG_ENDIAN 629 select SYS_SUPPORTS_HIGHMEM 630 select SYS_SUPPORTS_LITTLE_ENDIAN 631 632config SIBYTE_SENTOSA 633 bool "Sibyte BCM91250E-Sentosa" 634 select BOOT_ELF32 635 select DMA_COHERENT 636 select NR_CPUS_DEFAULT_2 637 select SIBYTE_SB1250 638 select SWAP_IO_SPACE 639 select SYS_HAS_CPU_SB1 640 select SYS_SUPPORTS_BIG_ENDIAN 641 select SYS_SUPPORTS_LITTLE_ENDIAN 642 643config SIBYTE_BIGSUR 644 bool "Sibyte BCM91480B-BigSur" 645 select BOOT_ELF32 646 select DMA_COHERENT 647 select NR_CPUS_DEFAULT_4 648 select SIBYTE_BCM1x80 649 select SWAP_IO_SPACE 650 select SYS_HAS_CPU_SB1 651 select SYS_SUPPORTS_BIG_ENDIAN 652 select SYS_SUPPORTS_HIGHMEM 653 select SYS_SUPPORTS_LITTLE_ENDIAN 654 select ZONE_DMA32 if 64BIT 655 656config SNI_RM 657 bool "SNI RM200/300/400" 658 select FW_ARC if CPU_LITTLE_ENDIAN 659 select FW_ARC32 if CPU_LITTLE_ENDIAN 660 select FW_SNIPROM if CPU_BIG_ENDIAN 661 select ARCH_MAY_HAVE_PC_FDC 662 select BOOT_ELF32 663 select CEVT_R4K 664 select CSRC_R4K 665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 666 select DMA_NONCOHERENT 667 select GENERIC_ISA_DMA 668 select HAVE_PCSPKR_PLATFORM 669 select HW_HAS_EISA 670 select HW_HAS_PCI 671 select IRQ_CPU 672 select I8253 673 select I8259 674 select ISA 675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 676 select SYS_HAS_CPU_R4X00 677 select SYS_HAS_CPU_R5000 678 select SYS_HAS_CPU_R10000 679 select R5000_CPU_SCACHE 680 select SYS_HAS_EARLY_PRINTK 681 select SYS_SUPPORTS_32BIT_KERNEL 682 select SYS_SUPPORTS_64BIT_KERNEL 683 select SYS_SUPPORTS_BIG_ENDIAN 684 select SYS_SUPPORTS_HIGHMEM 685 select SYS_SUPPORTS_LITTLE_ENDIAN 686 help 687 The SNI RM200/300/400 are MIPS-based machines manufactured by 688 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 689 Technology and now in turn merged with Fujitsu. Say Y here to 690 support this machine type. 691 692config MACH_TX39XX 693 bool "Toshiba TX39 series based machines" 694 695config MACH_TX49XX 696 bool "Toshiba TX49 series based machines" 697 698config MIKROTIK_RB532 699 bool "Mikrotik RB532 boards" 700 select CEVT_R4K 701 select CSRC_R4K 702 select DMA_NONCOHERENT 703 select HW_HAS_PCI 704 select IRQ_CPU 705 select SYS_HAS_CPU_MIPS32_R1 706 select SYS_SUPPORTS_32BIT_KERNEL 707 select SYS_SUPPORTS_LITTLE_ENDIAN 708 select SWAP_IO_SPACE 709 select BOOT_RAW 710 select ARCH_REQUIRE_GPIOLIB 711 help 712 Support the Mikrotik(tm) RouterBoard 532 series, 713 based on the IDT RC32434 SoC. 714 715config WR_PPMC 716 bool "Wind River PPMC board" 717 select CEVT_R4K 718 select CSRC_R4K 719 select IRQ_CPU 720 select BOOT_ELF32 721 select DMA_NONCOHERENT 722 select HW_HAS_PCI 723 select PCI_GT64XXX_PCI0 724 select SWAP_IO_SPACE 725 select SYS_HAS_CPU_MIPS32_R1 726 select SYS_HAS_CPU_MIPS32_R2 727 select SYS_HAS_CPU_MIPS64_R1 728 select SYS_HAS_CPU_NEVADA 729 select SYS_HAS_CPU_RM7000 730 select SYS_SUPPORTS_32BIT_KERNEL 731 select SYS_SUPPORTS_64BIT_KERNEL 732 select SYS_SUPPORTS_BIG_ENDIAN 733 select SYS_SUPPORTS_LITTLE_ENDIAN 734 help 735 This enables support for the Wind River MIPS32 4KC PPMC evaluation 736 board, which is based on GT64120 bridge chip. 737 738config CAVIUM_OCTEON_SIMULATOR 739 bool "Cavium Networks Octeon Simulator" 740 select CEVT_R4K 741 select 64BIT_PHYS_ADDR 742 select DMA_COHERENT 743 select SYS_SUPPORTS_64BIT_KERNEL 744 select SYS_SUPPORTS_BIG_ENDIAN 745 select SYS_SUPPORTS_HOTPLUG_CPU 746 select SYS_HAS_CPU_CAVIUM_OCTEON 747 select HOLES_IN_ZONE 748 help 749 The Octeon simulator is software performance model of the Cavium 750 Octeon Processor. It supports simulating Octeon processors on x86 751 hardware. 752 753config CAVIUM_OCTEON_REFERENCE_BOARD 754 bool "Cavium Networks Octeon reference board" 755 select CEVT_R4K 756 select 64BIT_PHYS_ADDR 757 select DMA_COHERENT 758 select SYS_SUPPORTS_64BIT_KERNEL 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select EDAC_SUPPORT 761 select SYS_SUPPORTS_HOTPLUG_CPU 762 select SYS_HAS_EARLY_PRINTK 763 select SYS_HAS_CPU_CAVIUM_OCTEON 764 select SWAP_IO_SPACE 765 select HW_HAS_PCI 766 select ARCH_SUPPORTS_MSI 767 select ZONE_DMA32 768 select USB_ARCH_HAS_OHCI 769 select USB_ARCH_HAS_EHCI 770 select HOLES_IN_ZONE 771 help 772 This option supports all of the Octeon reference boards from Cavium 773 Networks. It builds a kernel that dynamically determines the Octeon 774 CPU type and supports all known board reference implementations. 775 Some of the supported boards are: 776 EBT3000 777 EBH3000 778 EBH3100 779 Thunder 780 Kodama 781 Hikari 782 Say Y here for most Octeon reference boards. 783 784config NLM_XLR_BOARD 785 bool "Netlogic XLR/XLS based systems" 786 select BOOT_ELF32 787 select NLM_COMMON 788 select SYS_HAS_CPU_XLR 789 select SYS_SUPPORTS_SMP 790 select HW_HAS_PCI 791 select SWAP_IO_SPACE 792 select SYS_SUPPORTS_32BIT_KERNEL 793 select SYS_SUPPORTS_64BIT_KERNEL 794 select 64BIT_PHYS_ADDR 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select DMA_COHERENT 798 select NR_CPUS_DEFAULT_32 799 select CEVT_R4K 800 select CSRC_R4K 801 select IRQ_CPU 802 select ARCH_SUPPORTS_MSI 803 select ZONE_DMA32 if 64BIT 804 select SYNC_R4K 805 select SYS_HAS_EARLY_PRINTK 806 select USB_ARCH_HAS_OHCI if USB_SUPPORT 807 select USB_ARCH_HAS_EHCI if USB_SUPPORT 808 help 809 Support for systems based on Netlogic XLR and XLS processors. 810 Say Y here if you have a XLR or XLS based board. 811 812config NLM_XLP_BOARD 813 bool "Netlogic XLP based systems" 814 select BOOT_ELF32 815 select NLM_COMMON 816 select SYS_HAS_CPU_XLP 817 select SYS_SUPPORTS_SMP 818 select HW_HAS_PCI 819 select SYS_SUPPORTS_32BIT_KERNEL 820 select SYS_SUPPORTS_64BIT_KERNEL 821 select 64BIT_PHYS_ADDR 822 select SYS_SUPPORTS_BIG_ENDIAN 823 select SYS_SUPPORTS_LITTLE_ENDIAN 824 select SYS_SUPPORTS_HIGHMEM 825 select DMA_COHERENT 826 select NR_CPUS_DEFAULT_32 827 select CEVT_R4K 828 select CSRC_R4K 829 select IRQ_CPU 830 select ZONE_DMA32 if 64BIT 831 select SYNC_R4K 832 select SYS_HAS_EARLY_PRINTK 833 select USE_OF 834 help 835 This board is based on Netlogic XLP Processor. 836 Say Y here if you have a XLP based board. 837 838endchoice 839 840source "arch/mips/alchemy/Kconfig" 841source "arch/mips/ath79/Kconfig" 842source "arch/mips/bcm47xx/Kconfig" 843source "arch/mips/bcm63xx/Kconfig" 844source "arch/mips/jazz/Kconfig" 845source "arch/mips/jz4740/Kconfig" 846source "arch/mips/lantiq/Kconfig" 847source "arch/mips/lasat/Kconfig" 848source "arch/mips/pmcs-msp71xx/Kconfig" 849source "arch/mips/powertv/Kconfig" 850source "arch/mips/ralink/Kconfig" 851source "arch/mips/sgi-ip27/Kconfig" 852source "arch/mips/sibyte/Kconfig" 853source "arch/mips/txx9/Kconfig" 854source "arch/mips/vr41xx/Kconfig" 855source "arch/mips/cavium-octeon/Kconfig" 856source "arch/mips/loongson/Kconfig" 857source "arch/mips/loongson1/Kconfig" 858source "arch/mips/netlogic/Kconfig" 859 860endmenu 861 862config RWSEM_GENERIC_SPINLOCK 863 bool 864 default y 865 866config RWSEM_XCHGADD_ALGORITHM 867 bool 868 869config ARCH_HAS_ILOG2_U32 870 bool 871 default n 872 873config ARCH_HAS_ILOG2_U64 874 bool 875 default n 876 877config GENERIC_HWEIGHT 878 bool 879 default y 880 881config GENERIC_CALIBRATE_DELAY 882 bool 883 default y 884 885config SCHED_OMIT_FRAME_POINTER 886 bool 887 default y 888 889# 890# Select some configuration options automatically based on user selections. 891# 892config FW_ARC 893 bool 894 895config ARCH_MAY_HAVE_PC_FDC 896 bool 897 898config BOOT_RAW 899 bool 900 901config CEVT_BCM1480 902 bool 903 904config CEVT_DS1287 905 bool 906 907config CEVT_GT641XX 908 bool 909 910config CEVT_R4K 911 bool 912 913config CEVT_GIC 914 bool 915 916config CEVT_SB1250 917 bool 918 919config CEVT_TXX9 920 bool 921 922config CSRC_BCM1480 923 bool 924 925config CSRC_IOASIC 926 bool 927 928config CSRC_POWERTV 929 bool 930 931config CSRC_R4K 932 bool 933 934config CSRC_GIC 935 bool 936 937config CSRC_SB1250 938 bool 939 940config GPIO_TXX9 941 select ARCH_REQUIRE_GPIOLIB 942 bool 943 944config FW_CFE 945 bool 946 947config ARCH_DMA_ADDR_T_64BIT 948 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 949 950config DMA_COHERENT 951 bool 952 953config DMA_NONCOHERENT 954 bool 955 select NEED_DMA_MAP_STATE 956 957config NEED_DMA_MAP_STATE 958 bool 959 960config SYS_HAS_EARLY_PRINTK 961 bool 962 963config HOTPLUG_CPU 964 bool "Support for hot-pluggable CPUs" 965 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 966 help 967 Say Y here to allow turning CPUs off and on. CPUs can be 968 controlled through /sys/devices/system/cpu. 969 (Note: power management support will enable this option 970 automatically on SMP systems. ) 971 Say N if you want to disable CPU hotplug. 972 973config SYS_SUPPORTS_HOTPLUG_CPU 974 bool 975 976config I8259 977 bool 978 979config MIPS_BONITO64 980 bool 981 982config MIPS_MSC 983 bool 984 985config MIPS_NILE4 986 bool 987 988config SYNC_R4K 989 bool 990 991config MIPS_MACHINE 992 def_bool n 993 994config NO_IOPORT 995 def_bool n 996 997config GENERIC_ISA_DMA 998 bool 999 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1000 select ISA_DMA_API 1001 1002config GENERIC_ISA_DMA_SUPPORT_BROKEN 1003 bool 1004 select GENERIC_ISA_DMA 1005 1006config ISA_DMA_API 1007 bool 1008 1009config HOLES_IN_ZONE 1010 bool 1011 1012# 1013# Endianness selection. Sufficiently obscure so many users don't know what to 1014# answer,so we try hard to limit the available choices. Also the use of a 1015# choice statement should be more obvious to the user. 1016# 1017choice 1018 prompt "Endianness selection" 1019 help 1020 Some MIPS machines can be configured for either little or big endian 1021 byte order. These modes require different kernels and a different 1022 Linux distribution. In general there is one preferred byteorder for a 1023 particular system but some systems are just as commonly used in the 1024 one or the other endianness. 1025 1026config CPU_BIG_ENDIAN 1027 bool "Big endian" 1028 depends on SYS_SUPPORTS_BIG_ENDIAN 1029 1030config CPU_LITTLE_ENDIAN 1031 bool "Little endian" 1032 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1033 help 1034 1035endchoice 1036 1037config EXPORT_UASM 1038 bool 1039 1040config SYS_SUPPORTS_APM_EMULATION 1041 bool 1042 1043config SYS_SUPPORTS_BIG_ENDIAN 1044 bool 1045 1046config SYS_SUPPORTS_LITTLE_ENDIAN 1047 bool 1048 1049config SYS_SUPPORTS_HUGETLBFS 1050 bool 1051 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1052 default y 1053 1054config MIPS_HUGE_TLB_SUPPORT 1055 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1056 1057config IRQ_CPU 1058 bool 1059 1060config IRQ_CPU_RM7K 1061 bool 1062 1063config IRQ_MSP_SLP 1064 bool 1065 1066config IRQ_MSP_CIC 1067 bool 1068 1069config IRQ_TXX9 1070 bool 1071 1072config IRQ_GT641XX 1073 bool 1074 1075config IRQ_GIC 1076 bool 1077 1078config PCI_GT64XXX_PCI0 1079 bool 1080 1081config NO_EXCEPT_FILL 1082 bool 1083 1084config SOC_EMMA2RH 1085 bool 1086 select CEVT_R4K 1087 select CSRC_R4K 1088 select DMA_NONCOHERENT 1089 select IRQ_CPU 1090 select SWAP_IO_SPACE 1091 select SYS_HAS_CPU_R5500 1092 select SYS_SUPPORTS_32BIT_KERNEL 1093 select SYS_SUPPORTS_64BIT_KERNEL 1094 select SYS_SUPPORTS_BIG_ENDIAN 1095 1096config SOC_PNX833X 1097 bool 1098 select CEVT_R4K 1099 select CSRC_R4K 1100 select IRQ_CPU 1101 select DMA_NONCOHERENT 1102 select SYS_HAS_CPU_MIPS32_R2 1103 select SYS_SUPPORTS_32BIT_KERNEL 1104 select SYS_SUPPORTS_LITTLE_ENDIAN 1105 select SYS_SUPPORTS_BIG_ENDIAN 1106 select CPU_MIPSR2_IRQ_VI 1107 1108config SOC_PNX8335 1109 bool 1110 select SOC_PNX833X 1111 1112config SWAP_IO_SPACE 1113 bool 1114 1115config SGI_HAS_INDYDOG 1116 bool 1117 1118config SGI_HAS_HAL2 1119 bool 1120 1121config SGI_HAS_SEEQ 1122 bool 1123 1124config SGI_HAS_WD93 1125 bool 1126 1127config SGI_HAS_ZILOG 1128 bool 1129 1130config SGI_HAS_I8042 1131 bool 1132 1133config DEFAULT_SGI_PARTITION 1134 bool 1135 1136config FW_ARC32 1137 bool 1138 1139config FW_SNIPROM 1140 bool 1141 1142config BOOT_ELF32 1143 bool 1144 1145config MIPS_L1_CACHE_SHIFT 1146 int 1147 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X 1148 default "6" if MIPS_CPU_SCACHE 1149 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1150 default "5" 1151 1152config HAVE_STD_PC_SERIAL_PORT 1153 bool 1154 1155config ARC_CONSOLE 1156 bool "ARC console support" 1157 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1158 1159config ARC_MEMORY 1160 bool 1161 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1162 default y 1163 1164config ARC_PROMLIB 1165 bool 1166 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1167 default y 1168 1169config FW_ARC64 1170 bool 1171 1172config BOOT_ELF64 1173 bool 1174 1175menu "CPU selection" 1176 1177choice 1178 prompt "CPU type" 1179 default CPU_R4X00 1180 1181config CPU_LOONGSON2E 1182 bool "Loongson 2E" 1183 depends on SYS_HAS_CPU_LOONGSON2E 1184 select CPU_LOONGSON2 1185 help 1186 The Loongson 2E processor implements the MIPS III instruction set 1187 with many extensions. 1188 1189 It has an internal FPGA northbridge, which is compatible to 1190 bonito64. 1191 1192config CPU_LOONGSON2F 1193 bool "Loongson 2F" 1194 depends on SYS_HAS_CPU_LOONGSON2F 1195 select CPU_LOONGSON2 1196 select ARCH_REQUIRE_GPIOLIB 1197 help 1198 The Loongson 2F processor implements the MIPS III instruction set 1199 with many extensions. 1200 1201 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1202 have a similar programming interface with FPGA northbridge used in 1203 Loongson2E. 1204 1205config CPU_LOONGSON1B 1206 bool "Loongson 1B" 1207 depends on SYS_HAS_CPU_LOONGSON1B 1208 select CPU_LOONGSON1 1209 help 1210 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1211 release 2 instruction set. 1212 1213config CPU_MIPS32_R1 1214 bool "MIPS32 Release 1" 1215 depends on SYS_HAS_CPU_MIPS32_R1 1216 select CPU_HAS_PREFETCH 1217 select CPU_SUPPORTS_32BIT_KERNEL 1218 select CPU_SUPPORTS_HIGHMEM 1219 help 1220 Choose this option to build a kernel for release 1 or later of the 1221 MIPS32 architecture. Most modern embedded systems with a 32-bit 1222 MIPS processor are based on a MIPS32 processor. If you know the 1223 specific type of processor in your system, choose those that one 1224 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1225 Release 2 of the MIPS32 architecture is available since several 1226 years so chances are you even have a MIPS32 Release 2 processor 1227 in which case you should choose CPU_MIPS32_R2 instead for better 1228 performance. 1229 1230config CPU_MIPS32_R2 1231 bool "MIPS32 Release 2" 1232 depends on SYS_HAS_CPU_MIPS32_R2 1233 select CPU_HAS_PREFETCH 1234 select CPU_SUPPORTS_32BIT_KERNEL 1235 select CPU_SUPPORTS_HIGHMEM 1236 select HAVE_KVM 1237 help 1238 Choose this option to build a kernel for release 2 or later of the 1239 MIPS32 architecture. Most modern embedded systems with a 32-bit 1240 MIPS processor are based on a MIPS32 processor. If you know the 1241 specific type of processor in your system, choose those that one 1242 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1243 1244config CPU_MIPS64_R1 1245 bool "MIPS64 Release 1" 1246 depends on SYS_HAS_CPU_MIPS64_R1 1247 select CPU_HAS_PREFETCH 1248 select CPU_SUPPORTS_32BIT_KERNEL 1249 select CPU_SUPPORTS_64BIT_KERNEL 1250 select CPU_SUPPORTS_HIGHMEM 1251 select CPU_SUPPORTS_HUGEPAGES 1252 help 1253 Choose this option to build a kernel for release 1 or later of the 1254 MIPS64 architecture. Many modern embedded systems with a 64-bit 1255 MIPS processor are based on a MIPS64 processor. If you know the 1256 specific type of processor in your system, choose those that one 1257 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1258 Release 2 of the MIPS64 architecture is available since several 1259 years so chances are you even have a MIPS64 Release 2 processor 1260 in which case you should choose CPU_MIPS64_R2 instead for better 1261 performance. 1262 1263config CPU_MIPS64_R2 1264 bool "MIPS64 Release 2" 1265 depends on SYS_HAS_CPU_MIPS64_R2 1266 select CPU_HAS_PREFETCH 1267 select CPU_SUPPORTS_32BIT_KERNEL 1268 select CPU_SUPPORTS_64BIT_KERNEL 1269 select CPU_SUPPORTS_HIGHMEM 1270 select CPU_SUPPORTS_HUGEPAGES 1271 help 1272 Choose this option to build a kernel for release 2 or later of the 1273 MIPS64 architecture. Many modern embedded systems with a 64-bit 1274 MIPS processor are based on a MIPS64 processor. If you know the 1275 specific type of processor in your system, choose those that one 1276 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1277 1278config CPU_R3000 1279 bool "R3000" 1280 depends on SYS_HAS_CPU_R3000 1281 select CPU_HAS_WB 1282 select CPU_SUPPORTS_32BIT_KERNEL 1283 select CPU_SUPPORTS_HIGHMEM 1284 help 1285 Please make sure to pick the right CPU type. Linux/MIPS is not 1286 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1287 *not* work on R4000 machines and vice versa. However, since most 1288 of the supported machines have an R4000 (or similar) CPU, R4x00 1289 might be a safe bet. If the resulting kernel does not work, 1290 try to recompile with R3000. 1291 1292config CPU_TX39XX 1293 bool "R39XX" 1294 depends on SYS_HAS_CPU_TX39XX 1295 select CPU_SUPPORTS_32BIT_KERNEL 1296 1297config CPU_VR41XX 1298 bool "R41xx" 1299 depends on SYS_HAS_CPU_VR41XX 1300 select CPU_SUPPORTS_32BIT_KERNEL 1301 select CPU_SUPPORTS_64BIT_KERNEL 1302 help 1303 The options selects support for the NEC VR4100 series of processors. 1304 Only choose this option if you have one of these processors as a 1305 kernel built with this option will not run on any other type of 1306 processor or vice versa. 1307 1308config CPU_R4300 1309 bool "R4300" 1310 depends on SYS_HAS_CPU_R4300 1311 select CPU_SUPPORTS_32BIT_KERNEL 1312 select CPU_SUPPORTS_64BIT_KERNEL 1313 help 1314 MIPS Technologies R4300-series processors. 1315 1316config CPU_R4X00 1317 bool "R4x00" 1318 depends on SYS_HAS_CPU_R4X00 1319 select CPU_SUPPORTS_32BIT_KERNEL 1320 select CPU_SUPPORTS_64BIT_KERNEL 1321 select CPU_SUPPORTS_HUGEPAGES 1322 help 1323 MIPS Technologies R4000-series processors other than 4300, including 1324 the R4000, R4400, R4600, and 4700. 1325 1326config CPU_TX49XX 1327 bool "R49XX" 1328 depends on SYS_HAS_CPU_TX49XX 1329 select CPU_HAS_PREFETCH 1330 select CPU_SUPPORTS_32BIT_KERNEL 1331 select CPU_SUPPORTS_64BIT_KERNEL 1332 select CPU_SUPPORTS_HUGEPAGES 1333 1334config CPU_R5000 1335 bool "R5000" 1336 depends on SYS_HAS_CPU_R5000 1337 select CPU_SUPPORTS_32BIT_KERNEL 1338 select CPU_SUPPORTS_64BIT_KERNEL 1339 select CPU_SUPPORTS_HUGEPAGES 1340 help 1341 MIPS Technologies R5000-series processors other than the Nevada. 1342 1343config CPU_R5432 1344 bool "R5432" 1345 depends on SYS_HAS_CPU_R5432 1346 select CPU_SUPPORTS_32BIT_KERNEL 1347 select CPU_SUPPORTS_64BIT_KERNEL 1348 select CPU_SUPPORTS_HUGEPAGES 1349 1350config CPU_R5500 1351 bool "R5500" 1352 depends on SYS_HAS_CPU_R5500 1353 select CPU_SUPPORTS_32BIT_KERNEL 1354 select CPU_SUPPORTS_64BIT_KERNEL 1355 select CPU_SUPPORTS_HUGEPAGES 1356 help 1357 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1358 instruction set. 1359 1360config CPU_R6000 1361 bool "R6000" 1362 depends on SYS_HAS_CPU_R6000 1363 select CPU_SUPPORTS_32BIT_KERNEL 1364 help 1365 MIPS Technologies R6000 and R6000A series processors. Note these 1366 processors are extremely rare and the support for them is incomplete. 1367 1368config CPU_NEVADA 1369 bool "RM52xx" 1370 depends on SYS_HAS_CPU_NEVADA 1371 select CPU_SUPPORTS_32BIT_KERNEL 1372 select CPU_SUPPORTS_64BIT_KERNEL 1373 select CPU_SUPPORTS_HUGEPAGES 1374 help 1375 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1376 1377config CPU_R8000 1378 bool "R8000" 1379 depends on SYS_HAS_CPU_R8000 1380 select CPU_HAS_PREFETCH 1381 select CPU_SUPPORTS_64BIT_KERNEL 1382 help 1383 MIPS Technologies R8000 processors. Note these processors are 1384 uncommon and the support for them is incomplete. 1385 1386config CPU_R10000 1387 bool "R10000" 1388 depends on SYS_HAS_CPU_R10000 1389 select CPU_HAS_PREFETCH 1390 select CPU_SUPPORTS_32BIT_KERNEL 1391 select CPU_SUPPORTS_64BIT_KERNEL 1392 select CPU_SUPPORTS_HIGHMEM 1393 select CPU_SUPPORTS_HUGEPAGES 1394 help 1395 MIPS Technologies R10000-series processors. 1396 1397config CPU_RM7000 1398 bool "RM7000" 1399 depends on SYS_HAS_CPU_RM7000 1400 select CPU_HAS_PREFETCH 1401 select CPU_SUPPORTS_32BIT_KERNEL 1402 select CPU_SUPPORTS_64BIT_KERNEL 1403 select CPU_SUPPORTS_HIGHMEM 1404 select CPU_SUPPORTS_HUGEPAGES 1405 1406config CPU_SB1 1407 bool "SB1" 1408 depends on SYS_HAS_CPU_SB1 1409 select CPU_SUPPORTS_32BIT_KERNEL 1410 select CPU_SUPPORTS_64BIT_KERNEL 1411 select CPU_SUPPORTS_HIGHMEM 1412 select CPU_SUPPORTS_HUGEPAGES 1413 select WEAK_ORDERING 1414 1415config CPU_CAVIUM_OCTEON 1416 bool "Cavium Octeon processor" 1417 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1418 select ARCH_SPARSEMEM_ENABLE 1419 select CPU_HAS_PREFETCH 1420 select CPU_SUPPORTS_64BIT_KERNEL 1421 select SYS_SUPPORTS_SMP 1422 select NR_CPUS_DEFAULT_16 1423 select WEAK_ORDERING 1424 select CPU_SUPPORTS_HIGHMEM 1425 select CPU_SUPPORTS_HUGEPAGES 1426 select LIBFDT 1427 select USE_OF 1428 select USB_EHCI_BIG_ENDIAN_MMIO 1429 help 1430 The Cavium Octeon processor is a highly integrated chip containing 1431 many ethernet hardware widgets for networking tasks. The processor 1432 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1433 Full details can be found at http://www.caviumnetworks.com. 1434 1435config CPU_BMIPS3300 1436 bool "BMIPS3300" 1437 depends on SYS_HAS_CPU_BMIPS3300 1438 select CPU_BMIPS 1439 help 1440 Broadcom BMIPS3300 processors. 1441 1442config CPU_BMIPS4350 1443 bool "BMIPS4350" 1444 depends on SYS_HAS_CPU_BMIPS4350 1445 select CPU_BMIPS 1446 select SYS_SUPPORTS_SMP 1447 select SYS_SUPPORTS_HOTPLUG_CPU 1448 help 1449 Broadcom BMIPS4350 ("VIPER") processors. 1450 1451config CPU_BMIPS4380 1452 bool "BMIPS4380" 1453 depends on SYS_HAS_CPU_BMIPS4380 1454 select CPU_BMIPS 1455 select SYS_SUPPORTS_SMP 1456 select SYS_SUPPORTS_HOTPLUG_CPU 1457 help 1458 Broadcom BMIPS4380 processors. 1459 1460config CPU_BMIPS5000 1461 bool "BMIPS5000" 1462 depends on SYS_HAS_CPU_BMIPS5000 1463 select CPU_BMIPS 1464 select CPU_SUPPORTS_HIGHMEM 1465 select MIPS_CPU_SCACHE 1466 select SYS_SUPPORTS_SMP 1467 select SYS_SUPPORTS_HOTPLUG_CPU 1468 help 1469 Broadcom BMIPS5000 processors. 1470 1471config CPU_XLR 1472 bool "Netlogic XLR SoC" 1473 depends on SYS_HAS_CPU_XLR 1474 select CPU_SUPPORTS_32BIT_KERNEL 1475 select CPU_SUPPORTS_64BIT_KERNEL 1476 select CPU_SUPPORTS_HIGHMEM 1477 select CPU_SUPPORTS_HUGEPAGES 1478 select WEAK_ORDERING 1479 select WEAK_REORDERING_BEYOND_LLSC 1480 help 1481 Netlogic Microsystems XLR/XLS processors. 1482 1483config CPU_XLP 1484 bool "Netlogic XLP SoC" 1485 depends on SYS_HAS_CPU_XLP 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_64BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 select WEAK_ORDERING 1490 select WEAK_REORDERING_BEYOND_LLSC 1491 select CPU_HAS_PREFETCH 1492 select CPU_MIPSR2 1493 help 1494 Netlogic Microsystems XLP processors. 1495endchoice 1496 1497if CPU_LOONGSON2F 1498config CPU_NOP_WORKAROUNDS 1499 bool 1500 1501config CPU_JUMP_WORKAROUNDS 1502 bool 1503 1504config CPU_LOONGSON2F_WORKAROUNDS 1505 bool "Loongson 2F Workarounds" 1506 default y 1507 select CPU_NOP_WORKAROUNDS 1508 select CPU_JUMP_WORKAROUNDS 1509 help 1510 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1511 require workarounds. Without workarounds the system may hang 1512 unexpectedly. For more information please refer to the gas 1513 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1514 1515 Loongson 2F03 and later have fixed these issues and no workarounds 1516 are needed. The workarounds have no significant side effect on them 1517 but may decrease the performance of the system so this option should 1518 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1519 systems. 1520 1521 If unsure, please say Y. 1522endif # CPU_LOONGSON2F 1523 1524config SYS_SUPPORTS_ZBOOT 1525 bool 1526 select HAVE_KERNEL_GZIP 1527 select HAVE_KERNEL_BZIP2 1528 select HAVE_KERNEL_LZMA 1529 select HAVE_KERNEL_LZO 1530 1531config SYS_SUPPORTS_ZBOOT_UART16550 1532 bool 1533 select SYS_SUPPORTS_ZBOOT 1534 1535config CPU_LOONGSON2 1536 bool 1537 select CPU_SUPPORTS_32BIT_KERNEL 1538 select CPU_SUPPORTS_64BIT_KERNEL 1539 select CPU_SUPPORTS_HIGHMEM 1540 select CPU_SUPPORTS_HUGEPAGES 1541 1542config CPU_LOONGSON1 1543 bool 1544 select CPU_MIPS32 1545 select CPU_MIPSR2 1546 select CPU_HAS_PREFETCH 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_HIGHMEM 1549 1550config CPU_BMIPS 1551 bool 1552 select CPU_MIPS32 1553 select CPU_SUPPORTS_32BIT_KERNEL 1554 select DMA_NONCOHERENT 1555 select IRQ_CPU 1556 select SWAP_IO_SPACE 1557 select WEAK_ORDERING 1558 1559config SYS_HAS_CPU_LOONGSON2E 1560 bool 1561 1562config SYS_HAS_CPU_LOONGSON2F 1563 bool 1564 select CPU_SUPPORTS_CPUFREQ 1565 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1566 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1567 1568config SYS_HAS_CPU_LOONGSON1B 1569 bool 1570 1571config SYS_HAS_CPU_MIPS32_R1 1572 bool 1573 1574config SYS_HAS_CPU_MIPS32_R2 1575 bool 1576 1577config SYS_HAS_CPU_MIPS64_R1 1578 bool 1579 1580config SYS_HAS_CPU_MIPS64_R2 1581 bool 1582 1583config SYS_HAS_CPU_R3000 1584 bool 1585 1586config SYS_HAS_CPU_TX39XX 1587 bool 1588 1589config SYS_HAS_CPU_VR41XX 1590 bool 1591 1592config SYS_HAS_CPU_R4300 1593 bool 1594 1595config SYS_HAS_CPU_R4X00 1596 bool 1597 1598config SYS_HAS_CPU_TX49XX 1599 bool 1600 1601config SYS_HAS_CPU_R5000 1602 bool 1603 1604config SYS_HAS_CPU_R5432 1605 bool 1606 1607config SYS_HAS_CPU_R5500 1608 bool 1609 1610config SYS_HAS_CPU_R6000 1611 bool 1612 1613config SYS_HAS_CPU_NEVADA 1614 bool 1615 1616config SYS_HAS_CPU_R8000 1617 bool 1618 1619config SYS_HAS_CPU_R10000 1620 bool 1621 1622config SYS_HAS_CPU_RM7000 1623 bool 1624 1625config SYS_HAS_CPU_SB1 1626 bool 1627 1628config SYS_HAS_CPU_CAVIUM_OCTEON 1629 bool 1630 1631config SYS_HAS_CPU_BMIPS3300 1632 bool 1633 1634config SYS_HAS_CPU_BMIPS4350 1635 bool 1636 1637config SYS_HAS_CPU_BMIPS4380 1638 bool 1639 1640config SYS_HAS_CPU_BMIPS5000 1641 bool 1642 1643config SYS_HAS_CPU_XLR 1644 bool 1645 1646config SYS_HAS_CPU_XLP 1647 bool 1648 1649# 1650# CPU may reorder R->R, R->W, W->R, W->W 1651# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1652# 1653config WEAK_ORDERING 1654 bool 1655 1656# 1657# CPU may reorder reads and writes beyond LL/SC 1658# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1659# 1660config WEAK_REORDERING_BEYOND_LLSC 1661 bool 1662endmenu 1663 1664# 1665# These two indicate any level of the MIPS32 and MIPS64 architecture 1666# 1667config CPU_MIPS32 1668 bool 1669 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1670 1671config CPU_MIPS64 1672 bool 1673 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1674 1675# 1676# These two indicate the revision of the architecture, either Release 1 or Release 2 1677# 1678config CPU_MIPSR1 1679 bool 1680 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1681 1682config CPU_MIPSR2 1683 bool 1684 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1685 1686config SYS_SUPPORTS_32BIT_KERNEL 1687 bool 1688config SYS_SUPPORTS_64BIT_KERNEL 1689 bool 1690config CPU_SUPPORTS_32BIT_KERNEL 1691 bool 1692config CPU_SUPPORTS_64BIT_KERNEL 1693 bool 1694config CPU_SUPPORTS_CPUFREQ 1695 bool 1696config CPU_SUPPORTS_ADDRWINCFG 1697 bool 1698config CPU_SUPPORTS_HUGEPAGES 1699 bool 1700config CPU_SUPPORTS_UNCACHED_ACCELERATED 1701 bool 1702config MIPS_PGD_C0_CONTEXT 1703 bool 1704 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1705 1706# 1707# Set to y for ptrace access to watch registers. 1708# 1709config HARDWARE_WATCHPOINTS 1710 bool 1711 default y if CPU_MIPSR1 || CPU_MIPSR2 1712 1713menu "Kernel type" 1714 1715choice 1716 prompt "Kernel code model" 1717 help 1718 You should only select this option if you have a workload that 1719 actually benefits from 64-bit processing or if your machine has 1720 large memory. You will only be presented a single option in this 1721 menu if your system does not support both 32-bit and 64-bit kernels. 1722 1723config 32BIT 1724 bool "32-bit kernel" 1725 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1726 select TRAD_SIGNALS 1727 help 1728 Select this option if you want to build a 32-bit kernel. 1729config 64BIT 1730 bool "64-bit kernel" 1731 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1732 help 1733 Select this option if you want to build a 64-bit kernel. 1734 1735endchoice 1736 1737config KVM_GUEST 1738 bool "KVM Guest Kernel" 1739 help 1740 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1741 1742config KVM_HOST_FREQ 1743 int "KVM Host Processor Frequency (MHz)" 1744 depends on KVM_GUEST 1745 default 500 1746 help 1747 Select this option if building a guest kernel for KVM to skip 1748 RTC emulation when determining guest CPU Frequency. Instead, the guest 1749 processor frequency is automatically derived from the host frequency. 1750 1751choice 1752 prompt "Kernel page size" 1753 default PAGE_SIZE_4KB 1754 1755config PAGE_SIZE_4KB 1756 bool "4kB" 1757 depends on !CPU_LOONGSON2 1758 help 1759 This option select the standard 4kB Linux page size. On some 1760 R3000-family processors this is the only available page size. Using 1761 4kB page size will minimize memory consumption and is therefore 1762 recommended for low memory systems. 1763 1764config PAGE_SIZE_8KB 1765 bool "8kB" 1766 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1767 help 1768 Using 8kB page size will result in higher performance kernel at 1769 the price of higher memory consumption. This option is available 1770 only on R8000 and cnMIPS processors. Note that you will need a 1771 suitable Linux distribution to support this. 1772 1773config PAGE_SIZE_16KB 1774 bool "16kB" 1775 depends on !CPU_R3000 && !CPU_TX39XX 1776 help 1777 Using 16kB page size will result in higher performance kernel at 1778 the price of higher memory consumption. This option is available on 1779 all non-R3000 family processors. Note that you will need a suitable 1780 Linux distribution to support this. 1781 1782config PAGE_SIZE_32KB 1783 bool "32kB" 1784 depends on CPU_CAVIUM_OCTEON 1785 help 1786 Using 32kB page size will result in higher performance kernel at 1787 the price of higher memory consumption. This option is available 1788 only on cnMIPS cores. Note that you will need a suitable Linux 1789 distribution to support this. 1790 1791config PAGE_SIZE_64KB 1792 bool "64kB" 1793 depends on !CPU_R3000 && !CPU_TX39XX 1794 help 1795 Using 64kB page size will result in higher performance kernel at 1796 the price of higher memory consumption. This option is available on 1797 all non-R3000 family processor. Not that at the time of this 1798 writing this option is still high experimental. 1799 1800endchoice 1801 1802config FORCE_MAX_ZONEORDER 1803 int "Maximum zone order" 1804 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1805 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1806 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1807 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1808 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1809 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1810 range 11 64 1811 default "11" 1812 help 1813 The kernel memory allocator divides physically contiguous memory 1814 blocks into "zones", where each zone is a power of two number of 1815 pages. This option selects the largest power of two that the kernel 1816 keeps in the memory allocator. If you need to allocate very large 1817 blocks of physically contiguous memory, then you may need to 1818 increase this value. 1819 1820 This config option is actually maximum order plus one. For example, 1821 a value of 11 means that the largest free memory block is 2^10 pages. 1822 1823 The page size is not necessarily 4KB. Keep this in mind 1824 when choosing a value for this option. 1825 1826config CEVT_GIC 1827 bool "Use GIC global counter for clock events" 1828 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1829 help 1830 Use the GIC global counter for the clock events. The R4K clock 1831 event driver is always present, so if the platform ends up not 1832 detecting a GIC, it will fall back to the R4K timer for the 1833 generation of clock events. 1834 1835config BOARD_SCACHE 1836 bool 1837 1838config IP22_CPU_SCACHE 1839 bool 1840 select BOARD_SCACHE 1841 1842# 1843# Support for a MIPS32 / MIPS64 style S-caches 1844# 1845config MIPS_CPU_SCACHE 1846 bool 1847 select BOARD_SCACHE 1848 1849config R5000_CPU_SCACHE 1850 bool 1851 select BOARD_SCACHE 1852 1853config RM7000_CPU_SCACHE 1854 bool 1855 select BOARD_SCACHE 1856 1857config SIBYTE_DMA_PAGEOPS 1858 bool "Use DMA to clear/copy pages" 1859 depends on CPU_SB1 1860 help 1861 Instead of using the CPU to zero and copy pages, use a Data Mover 1862 channel. These DMA channels are otherwise unused by the standard 1863 SiByte Linux port. Seems to give a small performance benefit. 1864 1865config CPU_HAS_PREFETCH 1866 bool 1867 1868config CPU_GENERIC_DUMP_TLB 1869 bool 1870 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1871 1872config CPU_R4K_FPU 1873 bool 1874 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1875 1876config CPU_R4K_CACHE_TLB 1877 bool 1878 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1879 1880choice 1881 prompt "MIPS MT options" 1882 1883config MIPS_MT_DISABLED 1884 bool "Disable multithreading support." 1885 help 1886 Use this option if your workload can't take advantage of 1887 MIPS hardware multithreading support. On systems that don't have 1888 the option of an MT-enabled processor this option will be the only 1889 option in this menu. 1890 1891config MIPS_MT_SMP 1892 bool "Use 1 TC on each available VPE for SMP" 1893 depends on SYS_SUPPORTS_MULTITHREADING 1894 select CPU_MIPSR2_IRQ_VI 1895 select CPU_MIPSR2_IRQ_EI 1896 select MIPS_MT 1897 select NR_CPUS_DEFAULT_2 1898 select SMP 1899 select SYS_SUPPORTS_SCHED_SMT if SMP 1900 select SYS_SUPPORTS_SMP 1901 select SMP_UP 1902 select MIPS_PERF_SHARED_TC_COUNTERS 1903 help 1904 This is a kernel model which is known a VSMP but lately has been 1905 marketesed into SMVP. 1906 Virtual SMP uses the processor's VPEs to implement virtual 1907 processors. In currently available configuration of the 34K processor 1908 this allows for a dual processor. Both processors will share the same 1909 primary caches; each will obtain the half of the TLB for it's own 1910 exclusive use. For a layman this model can be described as similar to 1911 what Intel calls Hyperthreading. 1912 1913 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1914 1915config MIPS_MT_SMTC 1916 bool "SMTC: Use all TCs on all VPEs for SMP" 1917 depends on CPU_MIPS32_R2 1918 #depends on CPU_MIPS64_R2 # once there is hardware ... 1919 depends on SYS_SUPPORTS_MULTITHREADING 1920 select CPU_MIPSR2_IRQ_VI 1921 select CPU_MIPSR2_IRQ_EI 1922 select MIPS_MT 1923 select NR_CPUS_DEFAULT_8 1924 select SMP 1925 select SYS_SUPPORTS_SMP 1926 select SMP_UP 1927 help 1928 This is a kernel model which is known a SMTC or lately has been 1929 marketesed into SMVP. 1930 is presenting the available TC's of the core as processors to Linux. 1931 On currently available 34K processors this means a Linux system will 1932 see up to 5 processors. The implementation of the SMTC kernel differs 1933 significantly from VSMP and cannot efficiently coexist in the same 1934 kernel binary so the choice between VSMP and SMTC is a compile time 1935 decision. 1936 1937 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1938 1939endchoice 1940 1941config MIPS_MT 1942 bool 1943 1944config SCHED_SMT 1945 bool "SMT (multithreading) scheduler support" 1946 depends on SYS_SUPPORTS_SCHED_SMT 1947 default n 1948 help 1949 SMT scheduler support improves the CPU scheduler's decision making 1950 when dealing with MIPS MT enabled cores at a cost of slightly 1951 increased overhead in some places. If unsure say N here. 1952 1953config SYS_SUPPORTS_SCHED_SMT 1954 bool 1955 1956config SYS_SUPPORTS_MULTITHREADING 1957 bool 1958 1959config MIPS_MT_FPAFF 1960 bool "Dynamic FPU affinity for FP-intensive threads" 1961 default y 1962 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1963 1964config MIPS_VPE_LOADER 1965 bool "VPE loader support." 1966 depends on SYS_SUPPORTS_MULTITHREADING 1967 select CPU_MIPSR2_IRQ_VI 1968 select CPU_MIPSR2_IRQ_EI 1969 select MIPS_MT 1970 help 1971 Includes a loader for loading an elf relocatable object 1972 onto another VPE and running it. 1973 1974config MIPS_MT_SMTC_IM_BACKSTOP 1975 bool "Use per-TC register bits as backstop for inhibited IM bits" 1976 depends on MIPS_MT_SMTC 1977 default n 1978 help 1979 To support multiple TC microthreads acting as "CPUs" within 1980 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1981 during interrupt handling. To support legacy drivers and interrupt 1982 controller management code, SMTC has a "backstop" to track and 1983 if necessary restore the interrupt mask. This has some performance 1984 impact on interrupt service overhead. 1985 1986config MIPS_MT_SMTC_IRQAFF 1987 bool "Support IRQ affinity API" 1988 depends on MIPS_MT_SMTC 1989 default n 1990 help 1991 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1992 for SMTC Linux kernel. Requires platform support, of which 1993 an example can be found in the MIPS kernel i8259 and Malta 1994 platform code. Adds some overhead to interrupt dispatch, and 1995 should be used only if you know what you are doing. 1996 1997config MIPS_VPE_LOADER_TOM 1998 bool "Load VPE program into memory hidden from linux" 1999 depends on MIPS_VPE_LOADER 2000 default y 2001 help 2002 The loader can use memory that is present but has been hidden from 2003 Linux using the kernel command line option "mem=xxMB". It's up to 2004 you to ensure the amount you put in the option and the space your 2005 program requires is less or equal to the amount physically present. 2006 2007# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 2008config MIPS_VPE_APSP_API 2009 bool "Enable support for AP/SP API (RTLX)" 2010 depends on MIPS_VPE_LOADER 2011 help 2012 2013config MIPS_CMP 2014 bool "MIPS CMP framework support" 2015 depends on SYS_SUPPORTS_MIPS_CMP 2016 select SYNC_R4K 2017 select SYS_SUPPORTS_SMP 2018 select SYS_SUPPORTS_SCHED_SMT if SMP 2019 select WEAK_ORDERING 2020 default n 2021 help 2022 This is a placeholder option for the GCMP work. It will need to 2023 be handled differently... 2024 2025config SB1_PASS_1_WORKAROUNDS 2026 bool 2027 depends on CPU_SB1_PASS_1 2028 default y 2029 2030config SB1_PASS_2_WORKAROUNDS 2031 bool 2032 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2033 default y 2034 2035config SB1_PASS_2_1_WORKAROUNDS 2036 bool 2037 depends on CPU_SB1 && CPU_SB1_PASS_2 2038 default y 2039 2040 2041config 64BIT_PHYS_ADDR 2042 bool 2043 2044config ARCH_PHYS_ADDR_T_64BIT 2045 def_bool 64BIT_PHYS_ADDR 2046 2047config CPU_HAS_SMARTMIPS 2048 depends on SYS_SUPPORTS_SMARTMIPS 2049 bool "Support for the SmartMIPS ASE" 2050 help 2051 SmartMIPS is a extension of the MIPS32 architecture aimed at 2052 increased security at both hardware and software level for 2053 smartcards. Enabling this option will allow proper use of the 2054 SmartMIPS instructions by Linux applications. However a kernel with 2055 this option will not work on a MIPS core without SmartMIPS core. If 2056 you don't know you probably don't have SmartMIPS and should say N 2057 here. 2058 2059config CPU_MICROMIPS 2060 depends on SYS_SUPPORTS_MICROMIPS 2061 bool "Build kernel using microMIPS ISA" 2062 help 2063 When this option is enabled the kernel will be built using the 2064 microMIPS ISA 2065 2066config CPU_HAS_WB 2067 bool 2068 2069config XKS01 2070 bool 2071 2072# 2073# Vectored interrupt mode is an R2 feature 2074# 2075config CPU_MIPSR2_IRQ_VI 2076 bool 2077 2078# 2079# Extended interrupt mode is an R2 feature 2080# 2081config CPU_MIPSR2_IRQ_EI 2082 bool 2083 2084config CPU_HAS_SYNC 2085 bool 2086 depends on !CPU_R3000 2087 default y 2088 2089# 2090# CPU non-features 2091# 2092config CPU_DADDI_WORKAROUNDS 2093 bool 2094 2095config CPU_R4000_WORKAROUNDS 2096 bool 2097 select CPU_R4400_WORKAROUNDS 2098 2099config CPU_R4400_WORKAROUNDS 2100 bool 2101 2102# 2103# - Highmem only makes sense for the 32-bit kernel. 2104# - The current highmem code will only work properly on physically indexed 2105# caches such as R3000, SB1, R7000 or those that look like they're virtually 2106# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2107# moment we protect the user and offer the highmem option only on machines 2108# where it's known to be safe. This will not offer highmem on a few systems 2109# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2110# indexed CPUs but we're playing safe. 2111# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2112# know they might have memory configurations that could make use of highmem 2113# support. 2114# 2115config HIGHMEM 2116 bool "High Memory Support" 2117 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2118 2119config CPU_SUPPORTS_HIGHMEM 2120 bool 2121 2122config SYS_SUPPORTS_HIGHMEM 2123 bool 2124 2125config SYS_SUPPORTS_SMARTMIPS 2126 bool 2127 2128config SYS_SUPPORTS_MICROMIPS 2129 bool 2130 2131config ARCH_FLATMEM_ENABLE 2132 def_bool y 2133 depends on !NUMA && !CPU_LOONGSON2 2134 2135config ARCH_DISCONTIGMEM_ENABLE 2136 bool 2137 default y if SGI_IP27 2138 help 2139 Say Y to support efficient handling of discontiguous physical memory, 2140 for architectures which are either NUMA (Non-Uniform Memory Access) 2141 or have huge holes in the physical address space for other reasons. 2142 See <file:Documentation/vm/numa> for more. 2143 2144config ARCH_SPARSEMEM_ENABLE 2145 bool 2146 select SPARSEMEM_STATIC 2147 2148config NUMA 2149 bool "NUMA Support" 2150 depends on SYS_SUPPORTS_NUMA 2151 help 2152 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2153 Access). This option improves performance on systems with more 2154 than two nodes; on two node systems it is generally better to 2155 leave it disabled; on single node systems disable this option 2156 disabled. 2157 2158config SYS_SUPPORTS_NUMA 2159 bool 2160 2161config NODES_SHIFT 2162 int 2163 default "6" 2164 depends on NEED_MULTIPLE_NODES 2165 2166config HW_PERF_EVENTS 2167 bool "Enable hardware performance counter support for perf events" 2168 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2169 default y 2170 help 2171 Enable hardware performance counter support for perf events. If 2172 disabled, perf events will use software events only. 2173 2174source "mm/Kconfig" 2175 2176config SMP 2177 bool "Multi-Processing support" 2178 depends on SYS_SUPPORTS_SMP 2179 select USE_GENERIC_SMP_HELPERS 2180 help 2181 This enables support for systems with more than one CPU. If you have 2182 a system with only one CPU, like most personal computers, say N. If 2183 you have a system with more than one CPU, say Y. 2184 2185 If you say N here, the kernel will run on single and multiprocessor 2186 machines, but will use only one CPU of a multiprocessor machine. If 2187 you say Y here, the kernel will run on many, but not all, 2188 singleprocessor machines. On a singleprocessor machine, the kernel 2189 will run faster if you say N here. 2190 2191 People using multiprocessor machines who say Y here should also say 2192 Y to "Enhanced Real Time Clock Support", below. 2193 2194 See also the SMP-HOWTO available at 2195 <http://www.tldp.org/docs.html#howto>. 2196 2197 If you don't know what to do here, say N. 2198 2199config SMP_UP 2200 bool 2201 2202config SYS_SUPPORTS_MIPS_CMP 2203 bool 2204 2205config SYS_SUPPORTS_SMP 2206 bool 2207 2208config NR_CPUS_DEFAULT_1 2209 bool 2210 2211config NR_CPUS_DEFAULT_2 2212 bool 2213 2214config NR_CPUS_DEFAULT_4 2215 bool 2216 2217config NR_CPUS_DEFAULT_8 2218 bool 2219 2220config NR_CPUS_DEFAULT_16 2221 bool 2222 2223config NR_CPUS_DEFAULT_32 2224 bool 2225 2226config NR_CPUS_DEFAULT_64 2227 bool 2228 2229config NR_CPUS 2230 int "Maximum number of CPUs (2-64)" 2231 range 1 64 if NR_CPUS_DEFAULT_1 2232 depends on SMP 2233 default "1" if NR_CPUS_DEFAULT_1 2234 default "2" if NR_CPUS_DEFAULT_2 2235 default "4" if NR_CPUS_DEFAULT_4 2236 default "8" if NR_CPUS_DEFAULT_8 2237 default "16" if NR_CPUS_DEFAULT_16 2238 default "32" if NR_CPUS_DEFAULT_32 2239 default "64" if NR_CPUS_DEFAULT_64 2240 help 2241 This allows you to specify the maximum number of CPUs which this 2242 kernel will support. The maximum supported value is 32 for 32-bit 2243 kernel and 64 for 64-bit kernels; the minimum value which makes 2244 sense is 1 for Qemu (useful only for kernel debugging purposes) 2245 and 2 for all others. 2246 2247 This is purely to save memory - each supported CPU adds 2248 approximately eight kilobytes to the kernel image. For best 2249 performance should round up your number of processors to the next 2250 power of two. 2251 2252config MIPS_PERF_SHARED_TC_COUNTERS 2253 bool 2254 2255# 2256# Timer Interrupt Frequency Configuration 2257# 2258 2259choice 2260 prompt "Timer frequency" 2261 default HZ_250 2262 help 2263 Allows the configuration of the timer frequency. 2264 2265 config HZ_48 2266 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2267 2268 config HZ_100 2269 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2270 2271 config HZ_128 2272 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2273 2274 config HZ_250 2275 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2276 2277 config HZ_256 2278 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2279 2280 config HZ_1000 2281 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2282 2283 config HZ_1024 2284 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2285 2286endchoice 2287 2288config SYS_SUPPORTS_48HZ 2289 bool 2290 2291config SYS_SUPPORTS_100HZ 2292 bool 2293 2294config SYS_SUPPORTS_128HZ 2295 bool 2296 2297config SYS_SUPPORTS_250HZ 2298 bool 2299 2300config SYS_SUPPORTS_256HZ 2301 bool 2302 2303config SYS_SUPPORTS_1000HZ 2304 bool 2305 2306config SYS_SUPPORTS_1024HZ 2307 bool 2308 2309config SYS_SUPPORTS_ARBIT_HZ 2310 bool 2311 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2312 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2313 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2314 !SYS_SUPPORTS_1024HZ 2315 2316config HZ 2317 int 2318 default 48 if HZ_48 2319 default 100 if HZ_100 2320 default 128 if HZ_128 2321 default 250 if HZ_250 2322 default 256 if HZ_256 2323 default 1000 if HZ_1000 2324 default 1024 if HZ_1024 2325 2326source "kernel/Kconfig.preempt" 2327 2328config KEXEC 2329 bool "Kexec system call" 2330 help 2331 kexec is a system call that implements the ability to shutdown your 2332 current kernel, and to start another kernel. It is like a reboot 2333 but it is independent of the system firmware. And like a reboot 2334 you can start any kernel with it, not just Linux. 2335 2336 The name comes from the similarity to the exec system call. 2337 2338 It is an ongoing process to be certain the hardware in a machine 2339 is properly shutdown, so do not be surprised if this code does not 2340 initially work for you. It may help to enable device hotplugging 2341 support. As of this writing the exact hardware interface is 2342 strongly in flux, so no good recommendation can be made. 2343 2344config CRASH_DUMP 2345 bool "Kernel crash dumps" 2346 help 2347 Generate crash dump after being started by kexec. 2348 This should be normally only set in special crash dump kernels 2349 which are loaded in the main kernel with kexec-tools into 2350 a specially reserved region and then later executed after 2351 a crash by kdump/kexec. The crash dump kernel must be compiled 2352 to a memory address not used by the main kernel or firmware using 2353 PHYSICAL_START. 2354 2355config PHYSICAL_START 2356 hex "Physical address where the kernel is loaded" 2357 default "0xffffffff84000000" if 64BIT 2358 default "0x84000000" if 32BIT 2359 depends on CRASH_DUMP 2360 help 2361 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2362 If you plan to use kernel for capturing the crash dump change 2363 this value to start of the reserved region (the "X" value as 2364 specified in the "crashkernel=YM@XM" command line boot parameter 2365 passed to the panic-ed kernel). 2366 2367config SECCOMP 2368 bool "Enable seccomp to safely compute untrusted bytecode" 2369 depends on PROC_FS 2370 default y 2371 help 2372 This kernel feature is useful for number crunching applications 2373 that may need to compute untrusted bytecode during their 2374 execution. By using pipes or other transports made available to 2375 the process as file descriptors supporting the read/write 2376 syscalls, it's possible to isolate those applications in 2377 their own address space using seccomp. Once seccomp is 2378 enabled via /proc/<pid>/seccomp, it cannot be disabled 2379 and the task is only allowed to execute a few safe syscalls 2380 defined by each seccomp mode. 2381 2382 If unsure, say Y. Only embedded should say N here. 2383 2384config USE_OF 2385 bool 2386 select OF 2387 select OF_EARLY_FLATTREE 2388 select IRQ_DOMAIN 2389 2390endmenu 2391 2392config LOCKDEP_SUPPORT 2393 bool 2394 default y 2395 2396config STACKTRACE_SUPPORT 2397 bool 2398 default y 2399 2400source "init/Kconfig" 2401 2402source "kernel/Kconfig.freezer" 2403 2404menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2405 2406config HW_HAS_EISA 2407 bool 2408config HW_HAS_PCI 2409 bool 2410 2411config PCI 2412 bool "Support for PCI controller" 2413 depends on HW_HAS_PCI 2414 select PCI_DOMAINS 2415 select GENERIC_PCI_IOMAP 2416 select NO_GENERIC_PCI_IOPORT_MAP 2417 help 2418 Find out whether you have a PCI motherboard. PCI is the name of a 2419 bus system, i.e. the way the CPU talks to the other stuff inside 2420 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2421 say Y, otherwise N. 2422 2423config PCI_DOMAINS 2424 bool 2425 2426source "drivers/pci/Kconfig" 2427 2428source "drivers/pci/pcie/Kconfig" 2429 2430# 2431# ISA support is now enabled via select. Too many systems still have the one 2432# or other ISA chip on the board that users don't know about so don't expect 2433# users to choose the right thing ... 2434# 2435config ISA 2436 bool 2437 2438config EISA 2439 bool "EISA support" 2440 depends on HW_HAS_EISA 2441 select ISA 2442 select GENERIC_ISA_DMA 2443 ---help--- 2444 The Extended Industry Standard Architecture (EISA) bus was 2445 developed as an open alternative to the IBM MicroChannel bus. 2446 2447 The EISA bus provided some of the features of the IBM MicroChannel 2448 bus while maintaining backward compatibility with cards made for 2449 the older ISA bus. The EISA bus saw limited use between 1988 and 2450 1995 when it was made obsolete by the PCI bus. 2451 2452 Say Y here if you are building a kernel for an EISA-based machine. 2453 2454 Otherwise, say N. 2455 2456source "drivers/eisa/Kconfig" 2457 2458config TC 2459 bool "TURBOchannel support" 2460 depends on MACH_DECSTATION 2461 help 2462 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2463 processors. TURBOchannel programming specifications are available 2464 at: 2465 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2466 and: 2467 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2468 Linux driver support status is documented at: 2469 <http://www.linux-mips.org/wiki/DECstation> 2470 2471config MMU 2472 bool 2473 default y 2474 2475config I8253 2476 bool 2477 select CLKSRC_I8253 2478 select CLKEVT_I8253 2479 select MIPS_EXTERNAL_TIMER 2480 2481config ZONE_DMA32 2482 bool 2483 2484source "drivers/pcmcia/Kconfig" 2485 2486source "drivers/pci/hotplug/Kconfig" 2487 2488config RAPIDIO 2489 bool "RapidIO support" 2490 depends on PCI 2491 default n 2492 help 2493 If you say Y here, the kernel will include drivers and 2494 infrastructure code to support RapidIO interconnect devices. 2495 2496source "drivers/rapidio/Kconfig" 2497 2498endmenu 2499 2500menu "Executable file formats" 2501 2502source "fs/Kconfig.binfmt" 2503 2504config TRAD_SIGNALS 2505 bool 2506 2507config MIPS32_COMPAT 2508 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2509 depends on 64BIT 2510 help 2511 Select this option if you want Linux/MIPS 32-bit binary 2512 compatibility. Since all software available for Linux/MIPS is 2513 currently 32-bit you should say Y here. 2514 2515config COMPAT 2516 bool 2517 depends on MIPS32_COMPAT 2518 select ARCH_WANT_OLD_COMPAT_IPC 2519 default y 2520 2521config SYSVIPC_COMPAT 2522 bool 2523 depends on COMPAT && SYSVIPC 2524 default y 2525 2526config MIPS32_O32 2527 bool "Kernel support for o32 binaries" 2528 depends on MIPS32_COMPAT 2529 help 2530 Select this option if you want to run o32 binaries. These are pure 2531 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2532 existing binaries are in this format. 2533 2534 If unsure, say Y. 2535 2536config MIPS32_N32 2537 bool "Kernel support for n32 binaries" 2538 depends on MIPS32_COMPAT 2539 help 2540 Select this option if you want to run n32 binaries. These are 2541 64-bit binaries using 32-bit quantities for addressing and certain 2542 data that would normally be 64-bit. They are used in special 2543 cases. 2544 2545 If unsure, say N. 2546 2547config BINFMT_ELF32 2548 bool 2549 default y if MIPS32_O32 || MIPS32_N32 2550 2551endmenu 2552 2553menu "Power management options" 2554 2555config ARCH_HIBERNATION_POSSIBLE 2556 def_bool y 2557 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2558 2559config ARCH_SUSPEND_POSSIBLE 2560 def_bool y 2561 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2562 2563source "kernel/power/Kconfig" 2564 2565endmenu 2566 2567config MIPS_EXTERNAL_TIMER 2568 bool 2569 2570if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2571menu "CPU Power Management" 2572source "drivers/cpufreq/Kconfig" 2573endmenu 2574endif 2575 2576source "net/Kconfig" 2577 2578source "drivers/Kconfig" 2579 2580source "drivers/firmware/Kconfig" 2581 2582source "fs/Kconfig" 2583 2584source "arch/mips/Kconfig.debug" 2585 2586source "security/Kconfig" 2587 2588source "crypto/Kconfig" 2589 2590source "lib/Kconfig" 2591 2592source "arch/mips/kvm/Kconfig" 2593