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 HAVE_FUNCTION_TRACER 11 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 12 select HAVE_DYNAMIC_FTRACE 13 select HAVE_FTRACE_MCOUNT_RECORD 14 select HAVE_C_RECORDMCOUNT 15 select HAVE_FUNCTION_GRAPH_TRACER 16 select HAVE_KPROBES 17 select HAVE_KRETPROBES 18 select RTC_LIB if !MACH_LOONGSON 19 select GENERIC_ATOMIC64 if !64BIT 20 select HAVE_DMA_ATTRS 21 select HAVE_DMA_API_DEBUG 22 23menu "Machine selection" 24 25config ZONE_DMA 26 bool 27 28choice 29 prompt "System type" 30 default SGI_IP22 31 32config MIPS_ALCHEMY 33 bool "Alchemy processor based machines" 34 select 64BIT_PHYS_ADDR 35 select CEVT_R4K_LIB 36 select CSRC_R4K_LIB 37 select IRQ_CPU 38 select SYS_HAS_CPU_MIPS32_R1 39 select SYS_SUPPORTS_32BIT_KERNEL 40 select SYS_SUPPORTS_APM_EMULATION 41 select GENERIC_GPIO 42 select ARCH_WANT_OPTIONAL_GPIOLIB 43 select SYS_SUPPORTS_ZBOOT 44 45config AR7 46 bool "Texas Instruments AR7" 47 select BOOT_ELF32 48 select DMA_NONCOHERENT 49 select CEVT_R4K 50 select CSRC_R4K 51 select IRQ_CPU 52 select NO_EXCEPT_FILL 53 select SWAP_IO_SPACE 54 select SYS_HAS_CPU_MIPS32_R1 55 select SYS_HAS_EARLY_PRINTK 56 select SYS_SUPPORTS_32BIT_KERNEL 57 select SYS_SUPPORTS_LITTLE_ENDIAN 58 select SYS_SUPPORTS_ZBOOT_UART16550 59 select ARCH_REQUIRE_GPIOLIB 60 select GCD 61 select VLYNQ 62 help 63 Support for the Texas Instruments AR7 System-on-a-Chip 64 family: TNETD7100, 7200 and 7300. 65 66config BCM47XX 67 bool "Broadcom BCM47XX based boards" 68 select CEVT_R4K 69 select CSRC_R4K 70 select DMA_NONCOHERENT 71 select HW_HAS_PCI 72 select IRQ_CPU 73 select SYS_HAS_CPU_MIPS32_R1 74 select SYS_SUPPORTS_32BIT_KERNEL 75 select SYS_SUPPORTS_LITTLE_ENDIAN 76 select SSB 77 select SSB_DRIVER_MIPS 78 select SSB_DRIVER_EXTIF 79 select SSB_EMBEDDED 80 select SSB_B43_PCI_BRIDGE if PCI 81 select SSB_PCICORE_HOSTMODE if PCI 82 select GENERIC_GPIO 83 select SYS_HAS_EARLY_PRINTK 84 select CFE 85 help 86 Support for BCM47XX based boards 87 88config BCM63XX 89 bool "Broadcom BCM63XX based boards" 90 select CEVT_R4K 91 select CSRC_R4K 92 select DMA_NONCOHERENT 93 select IRQ_CPU 94 select SYS_HAS_CPU_MIPS32_R1 95 select SYS_SUPPORTS_32BIT_KERNEL 96 select SYS_SUPPORTS_BIG_ENDIAN 97 select SYS_HAS_EARLY_PRINTK 98 select SWAP_IO_SPACE 99 select ARCH_REQUIRE_GPIOLIB 100 help 101 Support for BCM63XX based boards 102 103config MIPS_COBALT 104 bool "Cobalt Server" 105 select CEVT_R4K 106 select CSRC_R4K 107 select CEVT_GT641XX 108 select DMA_NONCOHERENT 109 select HW_HAS_PCI 110 select I8253 111 select I8259 112 select IRQ_CPU 113 select IRQ_GT641XX 114 select PCI_GT64XXX_PCI0 115 select PCI 116 select SYS_HAS_CPU_NEVADA 117 select SYS_HAS_EARLY_PRINTK 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_SUPPORTS_64BIT_KERNEL 120 select SYS_SUPPORTS_LITTLE_ENDIAN 121 122config MACH_DECSTATION 123 bool "DECstations" 124 select BOOT_ELF32 125 select CEVT_DS1287 126 select CEVT_R4K 127 select CSRC_IOASIC 128 select CSRC_R4K 129 select CPU_DADDI_WORKAROUNDS if 64BIT 130 select CPU_R4000_WORKAROUNDS if 64BIT 131 select CPU_R4400_WORKAROUNDS if 64BIT 132 select DMA_NONCOHERENT 133 select NO_IOPORT 134 select IRQ_CPU 135 select SYS_HAS_CPU_R3000 136 select SYS_HAS_CPU_R4X00 137 select SYS_SUPPORTS_32BIT_KERNEL 138 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 139 select SYS_SUPPORTS_LITTLE_ENDIAN 140 select SYS_SUPPORTS_128HZ 141 select SYS_SUPPORTS_256HZ 142 select SYS_SUPPORTS_1024HZ 143 help 144 This enables support for DEC's MIPS based workstations. For details 145 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 146 DECstation porting pages on <http://decstation.unix-ag.org/>. 147 148 If you have one of the following DECstation Models you definitely 149 want to choose R4xx0 for the CPU Type: 150 151 DECstation 5000/50 152 DECstation 5000/150 153 DECstation 5000/260 154 DECsystem 5900/260 155 156 otherwise choose R3000. 157 158config MACH_JAZZ 159 bool "Jazz family of machines" 160 select ARC 161 select ARC32 162 select ARCH_MAY_HAVE_PC_FDC 163 select CEVT_R4K 164 select CSRC_R4K 165 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 166 select GENERIC_ISA_DMA 167 select IRQ_CPU 168 select I8253 169 select I8259 170 select ISA 171 select SYS_HAS_CPU_R4X00 172 select SYS_SUPPORTS_32BIT_KERNEL 173 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 174 select SYS_SUPPORTS_100HZ 175 help 176 This a family of machines based on the MIPS R4030 chipset which was 177 used by several vendors to build RISC/os and Windows NT workstations. 178 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 179 Olivetti M700-10 workstations. 180 181config MACH_JZ4740 182 bool "Ingenic JZ4740 based machines" 183 select SYS_HAS_CPU_MIPS32_R1 184 select SYS_SUPPORTS_32BIT_KERNEL 185 select SYS_SUPPORTS_LITTLE_ENDIAN 186 select DMA_NONCOHERENT 187 select IRQ_CPU 188 select GENERIC_GPIO 189 select ARCH_REQUIRE_GPIOLIB 190 select SYS_HAS_EARLY_PRINTK 191 select HAVE_PWM 192 193config LASAT 194 bool "LASAT Networks platforms" 195 select CEVT_R4K 196 select CSRC_R4K 197 select DMA_NONCOHERENT 198 select SYS_HAS_EARLY_PRINTK 199 select HW_HAS_PCI 200 select IRQ_CPU 201 select PCI_GT64XXX_PCI0 202 select MIPS_NILE4 203 select R5000_CPU_SCACHE 204 select SYS_HAS_CPU_R5000 205 select SYS_SUPPORTS_32BIT_KERNEL 206 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 207 select SYS_SUPPORTS_LITTLE_ENDIAN 208 209config MACH_LOONGSON 210 bool "Loongson family of machines" 211 select SYS_SUPPORTS_ZBOOT 212 help 213 This enables the support of Loongson family of machines. 214 215 Loongson is a family of general-purpose MIPS-compatible CPUs. 216 developed at Institute of Computing Technology (ICT), 217 Chinese Academy of Sciences (CAS) in the People's Republic 218 of China. The chief architect is Professor Weiwu Hu. 219 220config MIPS_MALTA 221 bool "MIPS Malta board" 222 select ARCH_MAY_HAVE_PC_FDC 223 select BOOT_ELF32 224 select BOOT_RAW 225 select CEVT_R4K 226 select CSRC_R4K 227 select DMA_NONCOHERENT 228 select GENERIC_ISA_DMA 229 select IRQ_CPU 230 select IRQ_GIC 231 select HW_HAS_PCI 232 select I8253 233 select I8259 234 select MIPS_BOARDS_GEN 235 select MIPS_BONITO64 236 select MIPS_CPU_SCACHE 237 select PCI_GT64XXX_PCI0 238 select MIPS_MSC 239 select SWAP_IO_SPACE 240 select SYS_HAS_CPU_MIPS32_R1 241 select SYS_HAS_CPU_MIPS32_R2 242 select SYS_HAS_CPU_MIPS64_R1 243 select SYS_HAS_CPU_NEVADA 244 select SYS_HAS_CPU_RM7000 245 select SYS_HAS_EARLY_PRINTK 246 select SYS_SUPPORTS_32BIT_KERNEL 247 select SYS_SUPPORTS_64BIT_KERNEL 248 select SYS_SUPPORTS_BIG_ENDIAN 249 select SYS_SUPPORTS_LITTLE_ENDIAN 250 select SYS_SUPPORTS_MIPS_CMP 251 select SYS_SUPPORTS_MULTITHREADING 252 select SYS_SUPPORTS_SMARTMIPS 253 select SYS_SUPPORTS_ZBOOT 254 help 255 This enables support for the MIPS Technologies Malta evaluation 256 board. 257 258config MIPS_SIM 259 bool 'MIPS simulator (MIPSsim)' 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select SYS_HAS_EARLY_PRINTK 264 select IRQ_CPU 265 select BOOT_RAW 266 select SYS_HAS_CPU_MIPS32_R1 267 select SYS_HAS_CPU_MIPS32_R2 268 select SYS_HAS_EARLY_PRINTK 269 select SYS_SUPPORTS_32BIT_KERNEL 270 select SYS_SUPPORTS_BIG_ENDIAN 271 select SYS_SUPPORTS_MULTITHREADING 272 select SYS_SUPPORTS_LITTLE_ENDIAN 273 help 274 This option enables support for MIPS Technologies MIPSsim software 275 emulator. 276 277config NEC_MARKEINS 278 bool "NEC EMMA2RH Mark-eins board" 279 select SOC_EMMA2RH 280 select HW_HAS_PCI 281 help 282 This enables support for the NEC Electronics Mark-eins boards. 283 284config MACH_VR41XX 285 bool "NEC VR4100 series based machines" 286 select CEVT_R4K 287 select CSRC_R4K 288 select SYS_HAS_CPU_VR41XX 289 select ARCH_REQUIRE_GPIOLIB 290 291config NXP_STB220 292 bool "NXP STB220 board" 293 select SOC_PNX833X 294 help 295 Support for NXP Semiconductors STB220 Development Board. 296 297config NXP_STB225 298 bool "NXP 225 board" 299 select SOC_PNX833X 300 select SOC_PNX8335 301 help 302 Support for NXP Semiconductors STB225 Development Board. 303 304config PNX8550_JBS 305 bool "NXP PNX8550 based JBS board" 306 select PNX8550 307 select SYS_SUPPORTS_LITTLE_ENDIAN 308 309config PNX8550_STB810 310 bool "NXP PNX8550 based STB810 board" 311 select PNX8550 312 select SYS_SUPPORTS_LITTLE_ENDIAN 313 314config PMC_MSP 315 bool "PMC-Sierra MSP chipsets" 316 depends on EXPERIMENTAL 317 select DMA_NONCOHERENT 318 select SWAP_IO_SPACE 319 select NO_EXCEPT_FILL 320 select BOOT_RAW 321 select SYS_HAS_CPU_MIPS32_R1 322 select SYS_HAS_CPU_MIPS32_R2 323 select SYS_SUPPORTS_32BIT_KERNEL 324 select SYS_SUPPORTS_BIG_ENDIAN 325 select IRQ_CPU 326 select SERIAL_8250 327 select SERIAL_8250_CONSOLE 328 help 329 This adds support for the PMC-Sierra family of Multi-Service 330 Processor System-On-A-Chips. These parts include a number 331 of integrated peripherals, interfaces and DSPs in addition to 332 a variety of MIPS cores. 333 334config PMC_YOSEMITE 335 bool "PMC-Sierra Yosemite eval board" 336 select CEVT_R4K 337 select CSRC_R4K 338 select DMA_COHERENT 339 select HW_HAS_PCI 340 select IRQ_CPU 341 select IRQ_CPU_RM7K 342 select IRQ_CPU_RM9K 343 select SWAP_IO_SPACE 344 select SYS_HAS_CPU_RM9000 345 select SYS_HAS_EARLY_PRINTK 346 select SYS_SUPPORTS_32BIT_KERNEL 347 select SYS_SUPPORTS_64BIT_KERNEL 348 select SYS_SUPPORTS_BIG_ENDIAN 349 select SYS_SUPPORTS_HIGHMEM 350 select SYS_SUPPORTS_SMP 351 help 352 Yosemite is an evaluation board for the RM9000x2 processor 353 manufactured by PMC-Sierra. 354 355config POWERTV 356 bool "Cisco PowerTV" 357 select BOOT_ELF32 358 select CEVT_R4K 359 select CPU_MIPSR2_IRQ_VI 360 select CPU_MIPSR2_IRQ_EI 361 select CSRC_POWERTV 362 select DMA_NONCOHERENT 363 select HW_HAS_PCI 364 select SYS_HAS_EARLY_PRINTK 365 select SYS_HAS_CPU_MIPS32_R2 366 select SYS_SUPPORTS_32BIT_KERNEL 367 select SYS_SUPPORTS_BIG_ENDIAN 368 select SYS_SUPPORTS_HIGHMEM 369 select USB_OHCI_LITTLE_ENDIAN 370 help 371 This enables support for the Cisco PowerTV Platform. 372 373config SGI_IP22 374 bool "SGI IP22 (Indy/Indigo2)" 375 select ARC 376 select ARC32 377 select BOOT_ELF32 378 select CEVT_R4K 379 select CSRC_R4K 380 select DEFAULT_SGI_PARTITION 381 select DMA_NONCOHERENT 382 select HW_HAS_EISA 383 select I8253 384 select I8259 385 select IP22_CPU_SCACHE 386 select IRQ_CPU 387 select GENERIC_ISA_DMA_SUPPORT_BROKEN 388 select SGI_HAS_I8042 389 select SGI_HAS_INDYDOG 390 select SGI_HAS_HAL2 391 select SGI_HAS_SEEQ 392 select SGI_HAS_WD93 393 select SGI_HAS_ZILOG 394 select SWAP_IO_SPACE 395 select SYS_HAS_CPU_R4X00 396 select SYS_HAS_CPU_R5000 397 # 398 # Disable EARLY_PRINTK for now since it leads to overwritten prom 399 # memory during early boot on some machines. 400 # 401 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 402 # for a more details discussion 403 # 404 # select SYS_HAS_EARLY_PRINTK 405 select SYS_SUPPORTS_32BIT_KERNEL 406 select SYS_SUPPORTS_64BIT_KERNEL 407 select SYS_SUPPORTS_BIG_ENDIAN 408 help 409 This are the SGI Indy, Challenge S and Indigo2, as well as certain 410 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 411 that runs on these, say Y here. 412 413config SGI_IP27 414 bool "SGI IP27 (Origin200/2000)" 415 select ARC 416 select ARC64 417 select BOOT_ELF64 418 select DEFAULT_SGI_PARTITION 419 select DMA_COHERENT 420 select SYS_HAS_EARLY_PRINTK 421 select HW_HAS_PCI 422 select NR_CPUS_DEFAULT_64 423 select SYS_HAS_CPU_R10000 424 select SYS_SUPPORTS_64BIT_KERNEL 425 select SYS_SUPPORTS_BIG_ENDIAN 426 select SYS_SUPPORTS_NUMA 427 select SYS_SUPPORTS_SMP 428 help 429 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 430 workstations. To compile a Linux kernel that runs on these, say Y 431 here. 432 433config SGI_IP28 434 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 435 depends on EXPERIMENTAL 436 select ARC 437 select ARC64 438 select BOOT_ELF64 439 select CEVT_R4K 440 select CSRC_R4K 441 select DEFAULT_SGI_PARTITION 442 select DMA_NONCOHERENT 443 select GENERIC_ISA_DMA_SUPPORT_BROKEN 444 select IRQ_CPU 445 select HW_HAS_EISA 446 select I8253 447 select I8259 448 select SGI_HAS_I8042 449 select SGI_HAS_INDYDOG 450 select SGI_HAS_HAL2 451 select SGI_HAS_SEEQ 452 select SGI_HAS_WD93 453 select SGI_HAS_ZILOG 454 select SWAP_IO_SPACE 455 select SYS_HAS_CPU_R10000 456 # 457 # Disable EARLY_PRINTK for now since it leads to overwritten prom 458 # memory during early boot on some machines. 459 # 460 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 461 # for a more details discussion 462 # 463 # select SYS_HAS_EARLY_PRINTK 464 select SYS_SUPPORTS_64BIT_KERNEL 465 select SYS_SUPPORTS_BIG_ENDIAN 466 help 467 This is the SGI Indigo2 with R10000 processor. To compile a Linux 468 kernel that runs on these, say Y here. 469 470config SGI_IP32 471 bool "SGI IP32 (O2)" 472 select ARC 473 select ARC32 474 select BOOT_ELF32 475 select CEVT_R4K 476 select CSRC_R4K 477 select DMA_NONCOHERENT 478 select HW_HAS_PCI 479 select IRQ_CPU 480 select R5000_CPU_SCACHE 481 select RM7000_CPU_SCACHE 482 select SYS_HAS_CPU_R5000 483 select SYS_HAS_CPU_R10000 if BROKEN 484 select SYS_HAS_CPU_RM7000 485 select SYS_HAS_CPU_NEVADA 486 select SYS_SUPPORTS_64BIT_KERNEL 487 select SYS_SUPPORTS_BIG_ENDIAN 488 help 489 If you want this kernel to run on SGI O2 workstation, say Y here. 490 491config SIBYTE_CRHINE 492 bool "Sibyte BCM91120C-CRhine" 493 depends on EXPERIMENTAL 494 select BOOT_ELF32 495 select DMA_COHERENT 496 select SIBYTE_BCM1120 497 select SWAP_IO_SPACE 498 select SYS_HAS_CPU_SB1 499 select SYS_SUPPORTS_BIG_ENDIAN 500 select SYS_SUPPORTS_LITTLE_ENDIAN 501 502config SIBYTE_CARMEL 503 bool "Sibyte BCM91120x-Carmel" 504 depends on EXPERIMENTAL 505 select BOOT_ELF32 506 select DMA_COHERENT 507 select SIBYTE_BCM1120 508 select SWAP_IO_SPACE 509 select SYS_HAS_CPU_SB1 510 select SYS_SUPPORTS_BIG_ENDIAN 511 select SYS_SUPPORTS_LITTLE_ENDIAN 512 513config SIBYTE_CRHONE 514 bool "Sibyte BCM91125C-CRhone" 515 depends on EXPERIMENTAL 516 select BOOT_ELF32 517 select DMA_COHERENT 518 select SIBYTE_BCM1125 519 select SWAP_IO_SPACE 520 select SYS_HAS_CPU_SB1 521 select SYS_SUPPORTS_BIG_ENDIAN 522 select SYS_SUPPORTS_HIGHMEM 523 select SYS_SUPPORTS_LITTLE_ENDIAN 524 525config SIBYTE_RHONE 526 bool "Sibyte BCM91125E-Rhone" 527 depends on EXPERIMENTAL 528 select BOOT_ELF32 529 select DMA_COHERENT 530 select SIBYTE_BCM1125H 531 select SWAP_IO_SPACE 532 select SYS_HAS_CPU_SB1 533 select SYS_SUPPORTS_BIG_ENDIAN 534 select SYS_SUPPORTS_LITTLE_ENDIAN 535 536config SIBYTE_SWARM 537 bool "Sibyte BCM91250A-SWARM" 538 select BOOT_ELF32 539 select DMA_COHERENT 540 select HAVE_PATA_PLATFORM 541 select NR_CPUS_DEFAULT_2 542 select SIBYTE_SB1250 543 select SWAP_IO_SPACE 544 select SYS_HAS_CPU_SB1 545 select SYS_SUPPORTS_BIG_ENDIAN 546 select SYS_SUPPORTS_HIGHMEM 547 select SYS_SUPPORTS_LITTLE_ENDIAN 548 select ZONE_DMA32 if 64BIT 549 550config SIBYTE_LITTLESUR 551 bool "Sibyte BCM91250C2-LittleSur" 552 depends on EXPERIMENTAL 553 select BOOT_ELF32 554 select DMA_COHERENT 555 select HAVE_PATA_PLATFORM 556 select NR_CPUS_DEFAULT_2 557 select SIBYTE_SB1250 558 select SWAP_IO_SPACE 559 select SYS_HAS_CPU_SB1 560 select SYS_SUPPORTS_BIG_ENDIAN 561 select SYS_SUPPORTS_HIGHMEM 562 select SYS_SUPPORTS_LITTLE_ENDIAN 563 564config SIBYTE_SENTOSA 565 bool "Sibyte BCM91250E-Sentosa" 566 depends on EXPERIMENTAL 567 select BOOT_ELF32 568 select DMA_COHERENT 569 select NR_CPUS_DEFAULT_2 570 select SIBYTE_SB1250 571 select SWAP_IO_SPACE 572 select SYS_HAS_CPU_SB1 573 select SYS_SUPPORTS_BIG_ENDIAN 574 select SYS_SUPPORTS_LITTLE_ENDIAN 575 576config SIBYTE_BIGSUR 577 bool "Sibyte BCM91480B-BigSur" 578 select BOOT_ELF32 579 select DMA_COHERENT 580 select NR_CPUS_DEFAULT_4 581 select SIBYTE_BCM1x80 582 select SWAP_IO_SPACE 583 select SYS_HAS_CPU_SB1 584 select SYS_SUPPORTS_BIG_ENDIAN 585 select SYS_SUPPORTS_HIGHMEM 586 select SYS_SUPPORTS_LITTLE_ENDIAN 587 select ZONE_DMA32 if 64BIT 588 589config SNI_RM 590 bool "SNI RM200/300/400" 591 select ARC if CPU_LITTLE_ENDIAN 592 select ARC32 if CPU_LITTLE_ENDIAN 593 select SNIPROM if CPU_BIG_ENDIAN 594 select ARCH_MAY_HAVE_PC_FDC 595 select BOOT_ELF32 596 select CEVT_R4K 597 select CSRC_R4K 598 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 599 select DMA_NONCOHERENT 600 select GENERIC_ISA_DMA 601 select HW_HAS_EISA 602 select HW_HAS_PCI 603 select IRQ_CPU 604 select I8253 605 select I8259 606 select ISA 607 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 608 select SYS_HAS_CPU_R4X00 609 select SYS_HAS_CPU_R5000 610 select SYS_HAS_CPU_R10000 611 select R5000_CPU_SCACHE 612 select SYS_HAS_EARLY_PRINTK 613 select SYS_SUPPORTS_32BIT_KERNEL 614 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 615 select SYS_SUPPORTS_BIG_ENDIAN 616 select SYS_SUPPORTS_HIGHMEM 617 select SYS_SUPPORTS_LITTLE_ENDIAN 618 help 619 The SNI RM200/300/400 are MIPS-based machines manufactured by 620 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 621 Technology and now in turn merged with Fujitsu. Say Y here to 622 support this machine type. 623 624config MACH_TX39XX 625 bool "Toshiba TX39 series based machines" 626 627config MACH_TX49XX 628 bool "Toshiba TX49 series based machines" 629 630config MIKROTIK_RB532 631 bool "Mikrotik RB532 boards" 632 select CEVT_R4K 633 select CSRC_R4K 634 select DMA_NONCOHERENT 635 select HW_HAS_PCI 636 select IRQ_CPU 637 select SYS_HAS_CPU_MIPS32_R1 638 select SYS_SUPPORTS_32BIT_KERNEL 639 select SYS_SUPPORTS_LITTLE_ENDIAN 640 select SWAP_IO_SPACE 641 select BOOT_RAW 642 select ARCH_REQUIRE_GPIOLIB 643 help 644 Support the Mikrotik(tm) RouterBoard 532 series, 645 based on the IDT RC32434 SoC. 646 647config WR_PPMC 648 bool "Wind River PPMC board" 649 select CEVT_R4K 650 select CSRC_R4K 651 select IRQ_CPU 652 select BOOT_ELF32 653 select DMA_NONCOHERENT 654 select HW_HAS_PCI 655 select PCI_GT64XXX_PCI0 656 select SWAP_IO_SPACE 657 select SYS_HAS_CPU_MIPS32_R1 658 select SYS_HAS_CPU_MIPS32_R2 659 select SYS_HAS_CPU_MIPS64_R1 660 select SYS_HAS_CPU_NEVADA 661 select SYS_HAS_CPU_RM7000 662 select SYS_SUPPORTS_32BIT_KERNEL 663 select SYS_SUPPORTS_64BIT_KERNEL 664 select SYS_SUPPORTS_BIG_ENDIAN 665 select SYS_SUPPORTS_LITTLE_ENDIAN 666 help 667 This enables support for the Wind River MIPS32 4KC PPMC evaluation 668 board, which is based on GT64120 bridge chip. 669 670config CAVIUM_OCTEON_SIMULATOR 671 bool "Cavium Networks Octeon Simulator" 672 select CEVT_R4K 673 select 64BIT_PHYS_ADDR 674 select DMA_COHERENT 675 select SYS_SUPPORTS_64BIT_KERNEL 676 select SYS_SUPPORTS_BIG_ENDIAN 677 select SYS_SUPPORTS_HIGHMEM 678 select SYS_SUPPORTS_HOTPLUG_CPU 679 select SYS_HAS_CPU_CAVIUM_OCTEON 680 help 681 The Octeon simulator is software performance model of the Cavium 682 Octeon Processor. It supports simulating Octeon processors on x86 683 hardware. 684 685config CAVIUM_OCTEON_REFERENCE_BOARD 686 bool "Cavium Networks Octeon reference board" 687 select CEVT_R4K 688 select 64BIT_PHYS_ADDR 689 select DMA_COHERENT 690 select SYS_SUPPORTS_64BIT_KERNEL 691 select SYS_SUPPORTS_BIG_ENDIAN 692 select SYS_SUPPORTS_HIGHMEM 693 select SYS_SUPPORTS_HOTPLUG_CPU 694 select SYS_HAS_EARLY_PRINTK 695 select SYS_HAS_CPU_CAVIUM_OCTEON 696 select SWAP_IO_SPACE 697 select HW_HAS_PCI 698 select ARCH_SUPPORTS_MSI 699 select ZONE_DMA32 700 select USB_ARCH_HAS_OHCI 701 select USB_ARCH_HAS_EHCI 702 help 703 This option supports all of the Octeon reference boards from Cavium 704 Networks. It builds a kernel that dynamically determines the Octeon 705 CPU type and supports all known board reference implementations. 706 Some of the supported boards are: 707 EBT3000 708 EBH3000 709 EBH3100 710 Thunder 711 Kodama 712 Hikari 713 Say Y here for most Octeon reference boards. 714 715endchoice 716 717source "arch/mips/alchemy/Kconfig" 718source "arch/mips/bcm63xx/Kconfig" 719source "arch/mips/jazz/Kconfig" 720source "arch/mips/jz4740/Kconfig" 721source "arch/mips/lasat/Kconfig" 722source "arch/mips/pmc-sierra/Kconfig" 723source "arch/mips/powertv/Kconfig" 724source "arch/mips/sgi-ip27/Kconfig" 725source "arch/mips/sibyte/Kconfig" 726source "arch/mips/txx9/Kconfig" 727source "arch/mips/vr41xx/Kconfig" 728source "arch/mips/cavium-octeon/Kconfig" 729source "arch/mips/loongson/Kconfig" 730 731endmenu 732 733config RWSEM_GENERIC_SPINLOCK 734 bool 735 default y 736 737config RWSEM_XCHGADD_ALGORITHM 738 bool 739 740config ARCH_HAS_ILOG2_U32 741 bool 742 default n 743 744config ARCH_HAS_ILOG2_U64 745 bool 746 default n 747 748config ARCH_SUPPORTS_OPROFILE 749 bool 750 default y if !MIPS_MT_SMTC 751 752config GENERIC_FIND_NEXT_BIT 753 bool 754 default y 755 756config GENERIC_HWEIGHT 757 bool 758 default y 759 760config GENERIC_CALIBRATE_DELAY 761 bool 762 default y 763 764config GENERIC_CLOCKEVENTS 765 bool 766 default y 767 768config GENERIC_CMOS_UPDATE 769 bool 770 default y 771 772config SCHED_OMIT_FRAME_POINTER 773 bool 774 default y 775 776config GENERIC_HARDIRQS_NO__DO_IRQ 777 def_bool y 778 779# 780# Select some configuration options automatically based on user selections. 781# 782config ARC 783 bool 784 785config ARCH_MAY_HAVE_PC_FDC 786 bool 787 788config BOOT_RAW 789 bool 790 791config CEVT_BCM1480 792 bool 793 794config CEVT_DS1287 795 bool 796 797config CEVT_GT641XX 798 bool 799 800config CEVT_R4K_LIB 801 bool 802 803config CEVT_R4K 804 select CEVT_R4K_LIB 805 bool 806 807config CEVT_SB1250 808 bool 809 810config CEVT_TXX9 811 bool 812 813config CSRC_BCM1480 814 bool 815 816config CSRC_IOASIC 817 bool 818 819config CSRC_POWERTV 820 bool 821 822config CSRC_R4K_LIB 823 bool 824 825config CSRC_R4K 826 select CSRC_R4K_LIB 827 bool 828 829config CSRC_SB1250 830 bool 831 832config GPIO_TXX9 833 select GENERIC_GPIO 834 select ARCH_REQUIRE_GPIOLIB 835 bool 836 837config CFE 838 bool 839 840config DMA_COHERENT 841 bool 842 843config DMA_NONCOHERENT 844 bool 845 select NEED_DMA_MAP_STATE 846 847config NEED_DMA_MAP_STATE 848 bool 849 850config SYS_HAS_EARLY_PRINTK 851 bool 852 853config HOTPLUG_CPU 854 bool "Support for hot-pluggable CPUs" 855 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 856 help 857 Say Y here to allow turning CPUs off and on. CPUs can be 858 controlled through /sys/devices/system/cpu. 859 (Note: power management support will enable this option 860 automatically on SMP systems. ) 861 Say N if you want to disable CPU hotplug. 862 863config SYS_SUPPORTS_HOTPLUG_CPU 864 bool 865 866config I8259 867 bool 868 869config MIPS_BONITO64 870 bool 871 872config MIPS_MSC 873 bool 874 875config MIPS_NILE4 876 bool 877 878config MIPS_DISABLE_OBSOLETE_IDE 879 bool 880 881config SYNC_R4K 882 bool 883 884config NO_IOPORT 885 def_bool n 886 887config GENERIC_ISA_DMA 888 bool 889 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 890 select ISA_DMA_API 891 892config GENERIC_ISA_DMA_SUPPORT_BROKEN 893 bool 894 select GENERIC_ISA_DMA 895 896config ISA_DMA_API 897 bool 898 899config GENERIC_GPIO 900 bool 901 902# 903# Endianess selection. Sufficiently obscure so many users don't know what to 904# answer,so we try hard to limit the available choices. Also the use of a 905# choice statement should be more obvious to the user. 906# 907choice 908 prompt "Endianess selection" 909 help 910 Some MIPS machines can be configured for either little or big endian 911 byte order. These modes require different kernels and a different 912 Linux distribution. In general there is one preferred byteorder for a 913 particular system but some systems are just as commonly used in the 914 one or the other endianness. 915 916config CPU_BIG_ENDIAN 917 bool "Big endian" 918 depends on SYS_SUPPORTS_BIG_ENDIAN 919 920config CPU_LITTLE_ENDIAN 921 bool "Little endian" 922 depends on SYS_SUPPORTS_LITTLE_ENDIAN 923 help 924 925endchoice 926 927config EXPORT_UASM 928 bool 929 930config SYS_SUPPORTS_APM_EMULATION 931 bool 932 933config SYS_SUPPORTS_BIG_ENDIAN 934 bool 935 936config SYS_SUPPORTS_LITTLE_ENDIAN 937 bool 938 939config SYS_SUPPORTS_HUGETLBFS 940 bool 941 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 942 default y 943 944config IRQ_CPU 945 bool 946 947config IRQ_CPU_RM7K 948 bool 949 950config IRQ_CPU_RM9K 951 bool 952 953config IRQ_MSP_SLP 954 bool 955 956config IRQ_MSP_CIC 957 bool 958 959config IRQ_TXX9 960 bool 961 962config IRQ_GT641XX 963 bool 964 965config IRQ_GIC 966 bool 967 968config IRQ_CPU_OCTEON 969 bool 970 971config MIPS_BOARDS_GEN 972 bool 973 974config PCI_GT64XXX_PCI0 975 bool 976 977config NO_EXCEPT_FILL 978 bool 979 980config MIPS_RM9122 981 bool 982 select SERIAL_RM9000 983 984config SOC_EMMA2RH 985 bool 986 select CEVT_R4K 987 select CSRC_R4K 988 select DMA_NONCOHERENT 989 select IRQ_CPU 990 select SWAP_IO_SPACE 991 select SYS_HAS_CPU_R5500 992 select SYS_SUPPORTS_32BIT_KERNEL 993 select SYS_SUPPORTS_64BIT_KERNEL 994 select SYS_SUPPORTS_BIG_ENDIAN 995 996config SOC_PNX833X 997 bool 998 select CEVT_R4K 999 select CSRC_R4K 1000 select IRQ_CPU 1001 select DMA_NONCOHERENT 1002 select SYS_HAS_CPU_MIPS32_R2 1003 select SYS_SUPPORTS_32BIT_KERNEL 1004 select SYS_SUPPORTS_LITTLE_ENDIAN 1005 select SYS_SUPPORTS_BIG_ENDIAN 1006 select GENERIC_GPIO 1007 select CPU_MIPSR2_IRQ_VI 1008 1009config SOC_PNX8335 1010 bool 1011 select SOC_PNX833X 1012 1013config PNX8550 1014 bool 1015 select SOC_PNX8550 1016 1017config SOC_PNX8550 1018 bool 1019 select DMA_NONCOHERENT 1020 select HW_HAS_PCI 1021 select SYS_HAS_CPU_MIPS32_R1 1022 select SYS_HAS_EARLY_PRINTK 1023 select SYS_SUPPORTS_32BIT_KERNEL 1024 select GENERIC_GPIO 1025 1026config SWAP_IO_SPACE 1027 bool 1028 1029config SERIAL_RM9000 1030 bool 1031 1032config SGI_HAS_INDYDOG 1033 bool 1034 1035config SGI_HAS_HAL2 1036 bool 1037 1038config SGI_HAS_SEEQ 1039 bool 1040 1041config SGI_HAS_WD93 1042 bool 1043 1044config SGI_HAS_ZILOG 1045 bool 1046 1047config SGI_HAS_I8042 1048 bool 1049 1050config DEFAULT_SGI_PARTITION 1051 bool 1052 1053config ARC32 1054 bool 1055 1056config SNIPROM 1057 bool 1058 1059config BOOT_ELF32 1060 bool 1061 1062config MIPS_L1_CACHE_SHIFT 1063 int 1064 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1065 default "6" if MIPS_CPU_SCACHE 1066 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1067 default "5" 1068 1069config HAVE_STD_PC_SERIAL_PORT 1070 bool 1071 1072config ARC_CONSOLE 1073 bool "ARC console support" 1074 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1075 1076config ARC_MEMORY 1077 bool 1078 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1079 default y 1080 1081config ARC_PROMLIB 1082 bool 1083 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1084 default y 1085 1086config ARC64 1087 bool 1088 1089config BOOT_ELF64 1090 bool 1091 1092menu "CPU selection" 1093 1094choice 1095 prompt "CPU type" 1096 default CPU_R4X00 1097 1098config CPU_LOONGSON2E 1099 bool "Loongson 2E" 1100 depends on SYS_HAS_CPU_LOONGSON2E 1101 select CPU_LOONGSON2 1102 help 1103 The Loongson 2E processor implements the MIPS III instruction set 1104 with many extensions. 1105 1106 It has an internal FPGA northbridge, which is compatiable to 1107 bonito64. 1108 1109config CPU_LOONGSON2F 1110 bool "Loongson 2F" 1111 depends on SYS_HAS_CPU_LOONGSON2F 1112 select CPU_LOONGSON2 1113 select GENERIC_GPIO 1114 select ARCH_REQUIRE_GPIOLIB 1115 help 1116 The Loongson 2F processor implements the MIPS III instruction set 1117 with many extensions. 1118 1119 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1120 have a similar programming interface with FPGA northbridge used in 1121 Loongson2E. 1122 1123config CPU_MIPS32_R1 1124 bool "MIPS32 Release 1" 1125 depends on SYS_HAS_CPU_MIPS32_R1 1126 select CPU_HAS_PREFETCH 1127 select CPU_SUPPORTS_32BIT_KERNEL 1128 select CPU_SUPPORTS_HIGHMEM 1129 help 1130 Choose this option to build a kernel for release 1 or later of the 1131 MIPS32 architecture. Most modern embedded systems with a 32-bit 1132 MIPS processor are based on a MIPS32 processor. If you know the 1133 specific type of processor in your system, choose those that one 1134 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1135 Release 2 of the MIPS32 architecture is available since several 1136 years so chances are you even have a MIPS32 Release 2 processor 1137 in which case you should choose CPU_MIPS32_R2 instead for better 1138 performance. 1139 1140config CPU_MIPS32_R2 1141 bool "MIPS32 Release 2" 1142 depends on SYS_HAS_CPU_MIPS32_R2 1143 select CPU_HAS_PREFETCH 1144 select CPU_SUPPORTS_32BIT_KERNEL 1145 select CPU_SUPPORTS_HIGHMEM 1146 help 1147 Choose this option to build a kernel for release 2 or later of the 1148 MIPS32 architecture. Most modern embedded systems with a 32-bit 1149 MIPS processor are based on a MIPS32 processor. If you know the 1150 specific type of processor in your system, choose those that one 1151 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1152 1153config CPU_MIPS64_R1 1154 bool "MIPS64 Release 1" 1155 depends on SYS_HAS_CPU_MIPS64_R1 1156 select CPU_HAS_PREFETCH 1157 select CPU_SUPPORTS_32BIT_KERNEL 1158 select CPU_SUPPORTS_64BIT_KERNEL 1159 select CPU_SUPPORTS_HIGHMEM 1160 select CPU_SUPPORTS_HUGEPAGES 1161 help 1162 Choose this option to build a kernel for release 1 or later of the 1163 MIPS64 architecture. Many modern embedded systems with a 64-bit 1164 MIPS processor are based on a MIPS64 processor. If you know the 1165 specific type of processor in your system, choose those that one 1166 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1167 Release 2 of the MIPS64 architecture is available since several 1168 years so chances are you even have a MIPS64 Release 2 processor 1169 in which case you should choose CPU_MIPS64_R2 instead for better 1170 performance. 1171 1172config CPU_MIPS64_R2 1173 bool "MIPS64 Release 2" 1174 depends on SYS_HAS_CPU_MIPS64_R2 1175 select CPU_HAS_PREFETCH 1176 select CPU_SUPPORTS_32BIT_KERNEL 1177 select CPU_SUPPORTS_64BIT_KERNEL 1178 select CPU_SUPPORTS_HIGHMEM 1179 select CPU_SUPPORTS_HUGEPAGES 1180 help 1181 Choose this option to build a kernel for release 2 or later of the 1182 MIPS64 architecture. Many modern embedded systems with a 64-bit 1183 MIPS processor are based on a MIPS64 processor. If you know the 1184 specific type of processor in your system, choose those that one 1185 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1186 1187config CPU_R3000 1188 bool "R3000" 1189 depends on SYS_HAS_CPU_R3000 1190 select CPU_HAS_WB 1191 select CPU_SUPPORTS_32BIT_KERNEL 1192 select CPU_SUPPORTS_HIGHMEM 1193 help 1194 Please make sure to pick the right CPU type. Linux/MIPS is not 1195 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1196 *not* work on R4000 machines and vice versa. However, since most 1197 of the supported machines have an R4000 (or similar) CPU, R4x00 1198 might be a safe bet. If the resulting kernel does not work, 1199 try to recompile with R3000. 1200 1201config CPU_TX39XX 1202 bool "R39XX" 1203 depends on SYS_HAS_CPU_TX39XX 1204 select CPU_SUPPORTS_32BIT_KERNEL 1205 1206config CPU_VR41XX 1207 bool "R41xx" 1208 depends on SYS_HAS_CPU_VR41XX 1209 select CPU_SUPPORTS_32BIT_KERNEL 1210 select CPU_SUPPORTS_64BIT_KERNEL 1211 help 1212 The options selects support for the NEC VR4100 series of processors. 1213 Only choose this option if you have one of these processors as a 1214 kernel built with this option will not run on any other type of 1215 processor or vice versa. 1216 1217config CPU_R4300 1218 bool "R4300" 1219 depends on SYS_HAS_CPU_R4300 1220 select CPU_SUPPORTS_32BIT_KERNEL 1221 select CPU_SUPPORTS_64BIT_KERNEL 1222 help 1223 MIPS Technologies R4300-series processors. 1224 1225config CPU_R4X00 1226 bool "R4x00" 1227 depends on SYS_HAS_CPU_R4X00 1228 select CPU_SUPPORTS_32BIT_KERNEL 1229 select CPU_SUPPORTS_64BIT_KERNEL 1230 help 1231 MIPS Technologies R4000-series processors other than 4300, including 1232 the R4000, R4400, R4600, and 4700. 1233 1234config CPU_TX49XX 1235 bool "R49XX" 1236 depends on SYS_HAS_CPU_TX49XX 1237 select CPU_HAS_PREFETCH 1238 select CPU_SUPPORTS_32BIT_KERNEL 1239 select CPU_SUPPORTS_64BIT_KERNEL 1240 1241config CPU_R5000 1242 bool "R5000" 1243 depends on SYS_HAS_CPU_R5000 1244 select CPU_SUPPORTS_32BIT_KERNEL 1245 select CPU_SUPPORTS_64BIT_KERNEL 1246 help 1247 MIPS Technologies R5000-series processors other than the Nevada. 1248 1249config CPU_R5432 1250 bool "R5432" 1251 depends on SYS_HAS_CPU_R5432 1252 select CPU_SUPPORTS_32BIT_KERNEL 1253 select CPU_SUPPORTS_64BIT_KERNEL 1254 1255config CPU_R5500 1256 bool "R5500" 1257 depends on SYS_HAS_CPU_R5500 1258 select CPU_SUPPORTS_32BIT_KERNEL 1259 select CPU_SUPPORTS_64BIT_KERNEL 1260 select CPU_SUPPORTS_HUGEPAGES 1261 help 1262 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1263 instruction set. 1264 1265config CPU_R6000 1266 bool "R6000" 1267 depends on EXPERIMENTAL 1268 depends on SYS_HAS_CPU_R6000 1269 select CPU_SUPPORTS_32BIT_KERNEL 1270 help 1271 MIPS Technologies R6000 and R6000A series processors. Note these 1272 processors are extremely rare and the support for them is incomplete. 1273 1274config CPU_NEVADA 1275 bool "RM52xx" 1276 depends on SYS_HAS_CPU_NEVADA 1277 select CPU_SUPPORTS_32BIT_KERNEL 1278 select CPU_SUPPORTS_64BIT_KERNEL 1279 help 1280 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1281 1282config CPU_R8000 1283 bool "R8000" 1284 depends on EXPERIMENTAL 1285 depends on SYS_HAS_CPU_R8000 1286 select CPU_HAS_PREFETCH 1287 select CPU_SUPPORTS_64BIT_KERNEL 1288 help 1289 MIPS Technologies R8000 processors. Note these processors are 1290 uncommon and the support for them is incomplete. 1291 1292config CPU_R10000 1293 bool "R10000" 1294 depends on SYS_HAS_CPU_R10000 1295 select CPU_HAS_PREFETCH 1296 select CPU_SUPPORTS_32BIT_KERNEL 1297 select CPU_SUPPORTS_64BIT_KERNEL 1298 select CPU_SUPPORTS_HIGHMEM 1299 help 1300 MIPS Technologies R10000-series processors. 1301 1302config CPU_RM7000 1303 bool "RM7000" 1304 depends on SYS_HAS_CPU_RM7000 1305 select CPU_HAS_PREFETCH 1306 select CPU_SUPPORTS_32BIT_KERNEL 1307 select CPU_SUPPORTS_64BIT_KERNEL 1308 select CPU_SUPPORTS_HIGHMEM 1309 1310config CPU_RM9000 1311 bool "RM9000" 1312 depends on SYS_HAS_CPU_RM9000 1313 select CPU_HAS_PREFETCH 1314 select CPU_SUPPORTS_32BIT_KERNEL 1315 select CPU_SUPPORTS_64BIT_KERNEL 1316 select CPU_SUPPORTS_HIGHMEM 1317 select WEAK_ORDERING 1318 1319config CPU_SB1 1320 bool "SB1" 1321 depends on SYS_HAS_CPU_SB1 1322 select CPU_SUPPORTS_32BIT_KERNEL 1323 select CPU_SUPPORTS_64BIT_KERNEL 1324 select CPU_SUPPORTS_HIGHMEM 1325 select WEAK_ORDERING 1326 1327config CPU_CAVIUM_OCTEON 1328 bool "Cavium Octeon processor" 1329 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1330 select IRQ_CPU 1331 select IRQ_CPU_OCTEON 1332 select CPU_HAS_PREFETCH 1333 select CPU_SUPPORTS_64BIT_KERNEL 1334 select SYS_SUPPORTS_SMP 1335 select NR_CPUS_DEFAULT_16 1336 select WEAK_ORDERING 1337 select CPU_SUPPORTS_HIGHMEM 1338 select CPU_SUPPORTS_HUGEPAGES 1339 help 1340 The Cavium Octeon processor is a highly integrated chip containing 1341 many ethernet hardware widgets for networking tasks. The processor 1342 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1343 Full details can be found at http://www.caviumnetworks.com. 1344 1345config CPU_BMIPS3300 1346 bool "BMIPS3300" 1347 depends on SYS_HAS_CPU_BMIPS3300 1348 select DMA_NONCOHERENT 1349 select IRQ_CPU 1350 select SWAP_IO_SPACE 1351 select SYS_SUPPORTS_32BIT_KERNEL 1352 select WEAK_ORDERING 1353 help 1354 Broadcom BMIPS3300 processors. 1355 1356config CPU_BMIPS4350 1357 bool "BMIPS4350" 1358 depends on SYS_HAS_CPU_BMIPS4350 1359 select CPU_SUPPORTS_32BIT_KERNEL 1360 select DMA_NONCOHERENT 1361 select IRQ_CPU 1362 select SWAP_IO_SPACE 1363 select SYS_SUPPORTS_SMP 1364 select SYS_SUPPORTS_HOTPLUG_CPU 1365 select WEAK_ORDERING 1366 help 1367 Broadcom BMIPS4350 ("VIPER") processors. 1368 1369config CPU_BMIPS4380 1370 bool "BMIPS4380" 1371 depends on SYS_HAS_CPU_BMIPS4380 1372 select CPU_SUPPORTS_32BIT_KERNEL 1373 select DMA_NONCOHERENT 1374 select IRQ_CPU 1375 select SWAP_IO_SPACE 1376 select SYS_SUPPORTS_SMP 1377 select SYS_SUPPORTS_HOTPLUG_CPU 1378 select WEAK_ORDERING 1379 help 1380 Broadcom BMIPS4380 processors. 1381 1382config CPU_BMIPS5000 1383 bool "BMIPS5000" 1384 depends on SYS_HAS_CPU_BMIPS5000 1385 select CPU_SUPPORTS_32BIT_KERNEL 1386 select CPU_SUPPORTS_HIGHMEM 1387 select DMA_NONCOHERENT 1388 select IRQ_CPU 1389 select SWAP_IO_SPACE 1390 select SYS_SUPPORTS_SMP 1391 select SYS_SUPPORTS_HOTPLUG_CPU 1392 select WEAK_ORDERING 1393 help 1394 Broadcom BMIPS5000 processors. 1395 1396endchoice 1397 1398if CPU_LOONGSON2F 1399config CPU_NOP_WORKAROUNDS 1400 bool 1401 1402config CPU_JUMP_WORKAROUNDS 1403 bool 1404 1405config CPU_LOONGSON2F_WORKAROUNDS 1406 bool "Loongson 2F Workarounds" 1407 default y 1408 select CPU_NOP_WORKAROUNDS 1409 select CPU_JUMP_WORKAROUNDS 1410 help 1411 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1412 require workarounds. Without workarounds the system may hang 1413 unexpectedly. For more information please refer to the gas 1414 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1415 1416 Loongson 2F03 and later have fixed these issues and no workarounds 1417 are needed. The workarounds have no significant side effect on them 1418 but may decrease the performance of the system so this option should 1419 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1420 systems. 1421 1422 If unsure, please say Y. 1423endif # CPU_LOONGSON2F 1424 1425config SYS_SUPPORTS_ZBOOT 1426 bool 1427 select HAVE_KERNEL_GZIP 1428 select HAVE_KERNEL_BZIP2 1429 select HAVE_KERNEL_LZMA 1430 select HAVE_KERNEL_LZO 1431 1432config SYS_SUPPORTS_ZBOOT_UART16550 1433 bool 1434 select SYS_SUPPORTS_ZBOOT 1435 1436config CPU_LOONGSON2 1437 bool 1438 select CPU_SUPPORTS_32BIT_KERNEL 1439 select CPU_SUPPORTS_64BIT_KERNEL 1440 select CPU_SUPPORTS_HIGHMEM 1441 1442config SYS_HAS_CPU_LOONGSON2E 1443 bool 1444 1445config SYS_HAS_CPU_LOONGSON2F 1446 bool 1447 select CPU_SUPPORTS_CPUFREQ 1448 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1449 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1450 1451config SYS_HAS_CPU_MIPS32_R1 1452 bool 1453 1454config SYS_HAS_CPU_MIPS32_R2 1455 bool 1456 1457config SYS_HAS_CPU_MIPS64_R1 1458 bool 1459 1460config SYS_HAS_CPU_MIPS64_R2 1461 bool 1462 1463config SYS_HAS_CPU_R3000 1464 bool 1465 1466config SYS_HAS_CPU_TX39XX 1467 bool 1468 1469config SYS_HAS_CPU_VR41XX 1470 bool 1471 1472config SYS_HAS_CPU_R4300 1473 bool 1474 1475config SYS_HAS_CPU_R4X00 1476 bool 1477 1478config SYS_HAS_CPU_TX49XX 1479 bool 1480 1481config SYS_HAS_CPU_R5000 1482 bool 1483 1484config SYS_HAS_CPU_R5432 1485 bool 1486 1487config SYS_HAS_CPU_R5500 1488 bool 1489 1490config SYS_HAS_CPU_R6000 1491 bool 1492 1493config SYS_HAS_CPU_NEVADA 1494 bool 1495 1496config SYS_HAS_CPU_R8000 1497 bool 1498 1499config SYS_HAS_CPU_R10000 1500 bool 1501 1502config SYS_HAS_CPU_RM7000 1503 bool 1504 1505config SYS_HAS_CPU_RM9000 1506 bool 1507 1508config SYS_HAS_CPU_SB1 1509 bool 1510 1511config SYS_HAS_CPU_CAVIUM_OCTEON 1512 bool 1513 1514config SYS_HAS_CPU_BMIPS3300 1515 bool 1516 1517config SYS_HAS_CPU_BMIPS4350 1518 bool 1519 1520config SYS_HAS_CPU_BMIPS4380 1521 bool 1522 1523config SYS_HAS_CPU_BMIPS5000 1524 bool 1525 1526# 1527# CPU may reorder R->R, R->W, W->R, W->W 1528# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1529# 1530config WEAK_ORDERING 1531 bool 1532 1533# 1534# CPU may reorder reads and writes beyond LL/SC 1535# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1536# 1537config WEAK_REORDERING_BEYOND_LLSC 1538 bool 1539endmenu 1540 1541# 1542# These two indicate any level of the MIPS32 and MIPS64 architecture 1543# 1544config CPU_MIPS32 1545 bool 1546 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1547 1548config CPU_MIPS64 1549 bool 1550 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1551 1552# 1553# These two indicate the revision of the architecture, either Release 1 or Release 2 1554# 1555config CPU_MIPSR1 1556 bool 1557 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1558 1559config CPU_MIPSR2 1560 bool 1561 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1562 1563config SYS_SUPPORTS_32BIT_KERNEL 1564 bool 1565config SYS_SUPPORTS_64BIT_KERNEL 1566 bool 1567config CPU_SUPPORTS_32BIT_KERNEL 1568 bool 1569config CPU_SUPPORTS_64BIT_KERNEL 1570 bool 1571config CPU_SUPPORTS_CPUFREQ 1572 bool 1573config CPU_SUPPORTS_ADDRWINCFG 1574 bool 1575config CPU_SUPPORTS_HUGEPAGES 1576 bool 1577config CPU_SUPPORTS_UNCACHED_ACCELERATED 1578 bool 1579config MIPS_PGD_C0_CONTEXT 1580 bool 1581 default y if 64BIT && CPU_MIPSR2 1582 1583# 1584# Set to y for ptrace access to watch registers. 1585# 1586config HARDWARE_WATCHPOINTS 1587 bool 1588 default y if CPU_MIPSR1 || CPU_MIPSR2 1589 1590menu "Kernel type" 1591 1592choice 1593 1594 prompt "Kernel code model" 1595 help 1596 You should only select this option if you have a workload that 1597 actually benefits from 64-bit processing or if your machine has 1598 large memory. You will only be presented a single option in this 1599 menu if your system does not support both 32-bit and 64-bit kernels. 1600 1601config 32BIT 1602 bool "32-bit kernel" 1603 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1604 select TRAD_SIGNALS 1605 help 1606 Select this option if you want to build a 32-bit kernel. 1607config 64BIT 1608 bool "64-bit kernel" 1609 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1610 select HAVE_SYSCALL_WRAPPERS 1611 help 1612 Select this option if you want to build a 64-bit kernel. 1613 1614endchoice 1615 1616choice 1617 prompt "Kernel page size" 1618 default PAGE_SIZE_4KB 1619 1620config PAGE_SIZE_4KB 1621 bool "4kB" 1622 depends on !CPU_LOONGSON2 1623 help 1624 This option select the standard 4kB Linux page size. On some 1625 R3000-family processors this is the only available page size. Using 1626 4kB page size will minimize memory consumption and is therefore 1627 recommended for low memory systems. 1628 1629config PAGE_SIZE_8KB 1630 bool "8kB" 1631 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1632 help 1633 Using 8kB page size will result in higher performance kernel at 1634 the price of higher memory consumption. This option is available 1635 only on R8000 and cnMIPS processors. Note that you will need a 1636 suitable Linux distribution to support this. 1637 1638config PAGE_SIZE_16KB 1639 bool "16kB" 1640 depends on !CPU_R3000 && !CPU_TX39XX 1641 help 1642 Using 16kB page size will result in higher performance kernel at 1643 the price of higher memory consumption. This option is available on 1644 all non-R3000 family processors. Note that you will need a suitable 1645 Linux distribution to support this. 1646 1647config PAGE_SIZE_32KB 1648 bool "32kB" 1649 depends on CPU_CAVIUM_OCTEON 1650 help 1651 Using 32kB page size will result in higher performance kernel at 1652 the price of higher memory consumption. This option is available 1653 only on cnMIPS cores. Note that you will need a suitable Linux 1654 distribution to support this. 1655 1656config PAGE_SIZE_64KB 1657 bool "64kB" 1658 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1659 help 1660 Using 64kB page size will result in higher performance kernel at 1661 the price of higher memory consumption. This option is available on 1662 all non-R3000 family processor. Not that at the time of this 1663 writing this option is still high experimental. 1664 1665endchoice 1666 1667config BOARD_SCACHE 1668 bool 1669 1670config IP22_CPU_SCACHE 1671 bool 1672 select BOARD_SCACHE 1673 1674# 1675# Support for a MIPS32 / MIPS64 style S-caches 1676# 1677config MIPS_CPU_SCACHE 1678 bool 1679 select BOARD_SCACHE 1680 1681config R5000_CPU_SCACHE 1682 bool 1683 select BOARD_SCACHE 1684 1685config RM7000_CPU_SCACHE 1686 bool 1687 select BOARD_SCACHE 1688 1689config SIBYTE_DMA_PAGEOPS 1690 bool "Use DMA to clear/copy pages" 1691 depends on CPU_SB1 1692 help 1693 Instead of using the CPU to zero and copy pages, use a Data Mover 1694 channel. These DMA channels are otherwise unused by the standard 1695 SiByte Linux port. Seems to give a small performance benefit. 1696 1697config CPU_HAS_PREFETCH 1698 bool 1699 1700choice 1701 prompt "MIPS MT options" 1702 1703config MIPS_MT_DISABLED 1704 bool "Disable multithreading support." 1705 help 1706 Use this option if your workload can't take advantage of 1707 MIPS hardware multithreading support. On systems that don't have 1708 the option of an MT-enabled processor this option will be the only 1709 option in this menu. 1710 1711config MIPS_MT_SMP 1712 bool "Use 1 TC on each available VPE for SMP" 1713 depends on SYS_SUPPORTS_MULTITHREADING 1714 select CPU_MIPSR2_IRQ_VI 1715 select CPU_MIPSR2_IRQ_EI 1716 select MIPS_MT 1717 select NR_CPUS_DEFAULT_2 1718 select SMP 1719 select SYS_SUPPORTS_SCHED_SMT if SMP 1720 select SYS_SUPPORTS_SMP 1721 select SMP_UP 1722 help 1723 This is a kernel model which is known a VSMP but lately has been 1724 marketesed into SMVP. 1725 Virtual SMP uses the processor's VPEs to implement virtual 1726 processors. In currently available configuration of the 34K processor 1727 this allows for a dual processor. Both processors will share the same 1728 primary caches; each will obtain the half of the TLB for it's own 1729 exclusive use. For a layman this model can be described as similar to 1730 what Intel calls Hyperthreading. 1731 1732 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1733 1734config MIPS_MT_SMTC 1735 bool "SMTC: Use all TCs on all VPEs for SMP" 1736 depends on CPU_MIPS32_R2 1737 #depends on CPU_MIPS64_R2 # once there is hardware ... 1738 depends on SYS_SUPPORTS_MULTITHREADING 1739 select CPU_MIPSR2_IRQ_VI 1740 select CPU_MIPSR2_IRQ_EI 1741 select MIPS_MT 1742 select NR_CPUS_DEFAULT_8 1743 select SMP 1744 select SYS_SUPPORTS_SMP 1745 select SMP_UP 1746 help 1747 This is a kernel model which is known a SMTC or lately has been 1748 marketesed into SMVP. 1749 is presenting the available TC's of the core as processors to Linux. 1750 On currently available 34K processors this means a Linux system will 1751 see up to 5 processors. The implementation of the SMTC kernel differs 1752 significantly from VSMP and cannot efficiently coexist in the same 1753 kernel binary so the choice between VSMP and SMTC is a compile time 1754 decision. 1755 1756 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1757 1758endchoice 1759 1760config MIPS_MT 1761 bool 1762 1763config SCHED_SMT 1764 bool "SMT (multithreading) scheduler support" 1765 depends on SYS_SUPPORTS_SCHED_SMT 1766 default n 1767 help 1768 SMT scheduler support improves the CPU scheduler's decision making 1769 when dealing with MIPS MT enabled cores at a cost of slightly 1770 increased overhead in some places. If unsure say N here. 1771 1772config SYS_SUPPORTS_SCHED_SMT 1773 bool 1774 1775 1776config SYS_SUPPORTS_MULTITHREADING 1777 bool 1778 1779config MIPS_MT_FPAFF 1780 bool "Dynamic FPU affinity for FP-intensive threads" 1781 default y 1782 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1783 1784config MIPS_VPE_LOADER 1785 bool "VPE loader support." 1786 depends on SYS_SUPPORTS_MULTITHREADING 1787 select CPU_MIPSR2_IRQ_VI 1788 select CPU_MIPSR2_IRQ_EI 1789 select MIPS_MT 1790 help 1791 Includes a loader for loading an elf relocatable object 1792 onto another VPE and running it. 1793 1794config MIPS_MT_SMTC_IM_BACKSTOP 1795 bool "Use per-TC register bits as backstop for inhibited IM bits" 1796 depends on MIPS_MT_SMTC 1797 default n 1798 help 1799 To support multiple TC microthreads acting as "CPUs" within 1800 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1801 during interrupt handling. To support legacy drivers and interrupt 1802 controller management code, SMTC has a "backstop" to track and 1803 if necessary restore the interrupt mask. This has some performance 1804 impact on interrupt service overhead. 1805 1806config MIPS_MT_SMTC_IRQAFF 1807 bool "Support IRQ affinity API" 1808 depends on MIPS_MT_SMTC 1809 default n 1810 help 1811 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1812 for SMTC Linux kernel. Requires platform support, of which 1813 an example can be found in the MIPS kernel i8259 and Malta 1814 platform code. Adds some overhead to interrupt dispatch, and 1815 should be used only if you know what you are doing. 1816 1817config MIPS_VPE_LOADER_TOM 1818 bool "Load VPE program into memory hidden from linux" 1819 depends on MIPS_VPE_LOADER 1820 default y 1821 help 1822 The loader can use memory that is present but has been hidden from 1823 Linux using the kernel command line option "mem=xxMB". It's up to 1824 you to ensure the amount you put in the option and the space your 1825 program requires is less or equal to the amount physically present. 1826 1827# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1828config MIPS_VPE_APSP_API 1829 bool "Enable support for AP/SP API (RTLX)" 1830 depends on MIPS_VPE_LOADER 1831 help 1832 1833config MIPS_APSP_KSPD 1834 bool "Enable KSPD" 1835 depends on MIPS_VPE_APSP_API 1836 default y 1837 help 1838 KSPD is a kernel daemon that accepts syscall requests from the SP 1839 side, actions them and returns the results. It also handles the 1840 "exit" syscall notifying other kernel modules the SP program is 1841 exiting. You probably want to say yes here. 1842 1843config MIPS_CMP 1844 bool "MIPS CMP framework support" 1845 depends on SYS_SUPPORTS_MIPS_CMP 1846 select SYNC_R4K 1847 select SYS_SUPPORTS_SMP 1848 select SYS_SUPPORTS_SCHED_SMT if SMP 1849 select WEAK_ORDERING 1850 default n 1851 help 1852 This is a placeholder option for the GCMP work. It will need to 1853 be handled differently... 1854 1855config SB1_PASS_1_WORKAROUNDS 1856 bool 1857 depends on CPU_SB1_PASS_1 1858 default y 1859 1860config SB1_PASS_2_WORKAROUNDS 1861 bool 1862 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1863 default y 1864 1865config SB1_PASS_2_1_WORKAROUNDS 1866 bool 1867 depends on CPU_SB1 && CPU_SB1_PASS_2 1868 default y 1869 1870config 64BIT_PHYS_ADDR 1871 bool 1872 1873config ARCH_PHYS_ADDR_T_64BIT 1874 def_bool 64BIT_PHYS_ADDR 1875 1876config CPU_HAS_SMARTMIPS 1877 depends on SYS_SUPPORTS_SMARTMIPS 1878 bool "Support for the SmartMIPS ASE" 1879 help 1880 SmartMIPS is a extension of the MIPS32 architecture aimed at 1881 increased security at both hardware and software level for 1882 smartcards. Enabling this option will allow proper use of the 1883 SmartMIPS instructions by Linux applications. However a kernel with 1884 this option will not work on a MIPS core without SmartMIPS core. If 1885 you don't know you probably don't have SmartMIPS and should say N 1886 here. 1887 1888config CPU_HAS_WB 1889 bool 1890 1891# 1892# Vectored interrupt mode is an R2 feature 1893# 1894config CPU_MIPSR2_IRQ_VI 1895 bool 1896 1897# 1898# Extended interrupt mode is an R2 feature 1899# 1900config CPU_MIPSR2_IRQ_EI 1901 bool 1902 1903config CPU_HAS_SYNC 1904 bool 1905 depends on !CPU_R3000 1906 default y 1907 1908config GENERIC_CLOCKEVENTS_BROADCAST 1909 bool 1910 1911# 1912# CPU non-features 1913# 1914config CPU_DADDI_WORKAROUNDS 1915 bool 1916 1917config CPU_R4000_WORKAROUNDS 1918 bool 1919 select CPU_R4400_WORKAROUNDS 1920 1921config CPU_R4400_WORKAROUNDS 1922 bool 1923 1924# 1925# Use the generic interrupt handling code in kernel/irq/: 1926# 1927config GENERIC_HARDIRQS 1928 bool 1929 default y 1930 1931config GENERIC_IRQ_PROBE 1932 bool 1933 default y 1934 1935config IRQ_PER_CPU 1936 bool 1937 1938# 1939# - Highmem only makes sense for the 32-bit kernel. 1940# - The current highmem code will only work properly on physically indexed 1941# caches such as R3000, SB1, R7000 or those that look like they're virtually 1942# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1943# moment we protect the user and offer the highmem option only on machines 1944# where it's known to be safe. This will not offer highmem on a few systems 1945# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1946# indexed CPUs but we're playing safe. 1947# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 1948# know they might have memory configurations that could make use of highmem 1949# support. 1950# 1951config HIGHMEM 1952 bool "High Memory Support" 1953 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 1954 1955config CPU_SUPPORTS_HIGHMEM 1956 bool 1957 1958config SYS_SUPPORTS_HIGHMEM 1959 bool 1960 1961config SYS_SUPPORTS_SMARTMIPS 1962 bool 1963 1964config ARCH_FLATMEM_ENABLE 1965 def_bool y 1966 depends on !NUMA && !CPU_LOONGSON2 1967 1968config ARCH_DISCONTIGMEM_ENABLE 1969 bool 1970 default y if SGI_IP27 1971 help 1972 Say Y to support efficient handling of discontiguous physical memory, 1973 for architectures which are either NUMA (Non-Uniform Memory Access) 1974 or have huge holes in the physical address space for other reasons. 1975 See <file:Documentation/vm/numa> for more. 1976 1977config ARCH_POPULATES_NODE_MAP 1978 def_bool y 1979 1980config ARCH_SPARSEMEM_ENABLE 1981 bool 1982 select SPARSEMEM_STATIC 1983 1984config NUMA 1985 bool "NUMA Support" 1986 depends on SYS_SUPPORTS_NUMA 1987 help 1988 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 1989 Access). This option improves performance on systems with more 1990 than two nodes; on two node systems it is generally better to 1991 leave it disabled; on single node systems disable this option 1992 disabled. 1993 1994config SYS_SUPPORTS_NUMA 1995 bool 1996 1997config NODES_SHIFT 1998 int 1999 default "6" 2000 depends on NEED_MULTIPLE_NODES 2001 2002config HW_PERF_EVENTS 2003 bool "Enable hardware performance counter support for perf events" 2004 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32 2005 default y 2006 help 2007 Enable hardware performance counter support for perf events. If 2008 disabled, perf events will use software events only. 2009 2010source "mm/Kconfig" 2011 2012config SMP 2013 bool "Multi-Processing support" 2014 depends on SYS_SUPPORTS_SMP 2015 select IRQ_PER_CPU 2016 select USE_GENERIC_SMP_HELPERS 2017 help 2018 This enables support for systems with more than one CPU. If you have 2019 a system with only one CPU, like most personal computers, say N. If 2020 you have a system with more than one CPU, say Y. 2021 2022 If you say N here, the kernel will run on single and multiprocessor 2023 machines, but will use only one CPU of a multiprocessor machine. If 2024 you say Y here, the kernel will run on many, but not all, 2025 singleprocessor machines. On a singleprocessor machine, the kernel 2026 will run faster if you say N here. 2027 2028 People using multiprocessor machines who say Y here should also say 2029 Y to "Enhanced Real Time Clock Support", below. 2030 2031 See also the SMP-HOWTO available at 2032 <http://www.tldp.org/docs.html#howto>. 2033 2034 If you don't know what to do here, say N. 2035 2036config SMP_UP 2037 bool 2038 2039config SYS_SUPPORTS_MIPS_CMP 2040 bool 2041 2042config SYS_SUPPORTS_SMP 2043 bool 2044 2045config NR_CPUS_DEFAULT_1 2046 bool 2047 2048config NR_CPUS_DEFAULT_2 2049 bool 2050 2051config NR_CPUS_DEFAULT_4 2052 bool 2053 2054config NR_CPUS_DEFAULT_8 2055 bool 2056 2057config NR_CPUS_DEFAULT_16 2058 bool 2059 2060config NR_CPUS_DEFAULT_32 2061 bool 2062 2063config NR_CPUS_DEFAULT_64 2064 bool 2065 2066config NR_CPUS 2067 int "Maximum number of CPUs (2-64)" 2068 range 1 64 if NR_CPUS_DEFAULT_1 2069 depends on SMP 2070 default "1" if NR_CPUS_DEFAULT_1 2071 default "2" if NR_CPUS_DEFAULT_2 2072 default "4" if NR_CPUS_DEFAULT_4 2073 default "8" if NR_CPUS_DEFAULT_8 2074 default "16" if NR_CPUS_DEFAULT_16 2075 default "32" if NR_CPUS_DEFAULT_32 2076 default "64" if NR_CPUS_DEFAULT_64 2077 help 2078 This allows you to specify the maximum number of CPUs which this 2079 kernel will support. The maximum supported value is 32 for 32-bit 2080 kernel and 64 for 64-bit kernels; the minimum value which makes 2081 sense is 1 for Qemu (useful only for kernel debugging purposes) 2082 and 2 for all others. 2083 2084 This is purely to save memory - each supported CPU adds 2085 approximately eight kilobytes to the kernel image. For best 2086 performance should round up your number of processors to the next 2087 power of two. 2088 2089source "kernel/time/Kconfig" 2090 2091# 2092# Timer Interrupt Frequency Configuration 2093# 2094 2095choice 2096 prompt "Timer frequency" 2097 default HZ_250 2098 help 2099 Allows the configuration of the timer frequency. 2100 2101 config HZ_48 2102 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2103 2104 config HZ_100 2105 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2106 2107 config HZ_128 2108 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2109 2110 config HZ_250 2111 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2112 2113 config HZ_256 2114 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2115 2116 config HZ_1000 2117 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2118 2119 config HZ_1024 2120 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2121 2122endchoice 2123 2124config SYS_SUPPORTS_48HZ 2125 bool 2126 2127config SYS_SUPPORTS_100HZ 2128 bool 2129 2130config SYS_SUPPORTS_128HZ 2131 bool 2132 2133config SYS_SUPPORTS_250HZ 2134 bool 2135 2136config SYS_SUPPORTS_256HZ 2137 bool 2138 2139config SYS_SUPPORTS_1000HZ 2140 bool 2141 2142config SYS_SUPPORTS_1024HZ 2143 bool 2144 2145config SYS_SUPPORTS_ARBIT_HZ 2146 bool 2147 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2148 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2149 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2150 !SYS_SUPPORTS_1024HZ 2151 2152config HZ 2153 int 2154 default 48 if HZ_48 2155 default 100 if HZ_100 2156 default 128 if HZ_128 2157 default 250 if HZ_250 2158 default 256 if HZ_256 2159 default 1000 if HZ_1000 2160 default 1024 if HZ_1024 2161 2162source "kernel/Kconfig.preempt" 2163 2164config MIPS_INSANE_LARGE 2165 bool "Support for large 64-bit configurations" 2166 depends on CPU_R10000 && 64BIT 2167 help 2168 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 2169 previous 64-bit processors which only supported 40 bit / 1TB. If you 2170 need processes of more than 1TB virtual address space, say Y here. 2171 This will result in additional memory usage, so it is not 2172 recommended for normal users. 2173 2174config KEXEC 2175 bool "Kexec system call (EXPERIMENTAL)" 2176 depends on EXPERIMENTAL 2177 help 2178 kexec is a system call that implements the ability to shutdown your 2179 current kernel, and to start another kernel. It is like a reboot 2180 but it is independent of the system firmware. And like a reboot 2181 you can start any kernel with it, not just Linux. 2182 2183 The name comes from the similarity to the exec system call. 2184 2185 It is an ongoing process to be certain the hardware in a machine 2186 is properly shutdown, so do not be surprised if this code does not 2187 initially work for you. It may help to enable device hotplugging 2188 support. As of this writing the exact hardware interface is 2189 strongly in flux, so no good recommendation can be made. 2190 2191config SECCOMP 2192 bool "Enable seccomp to safely compute untrusted bytecode" 2193 depends on PROC_FS 2194 default y 2195 help 2196 This kernel feature is useful for number crunching applications 2197 that may need to compute untrusted bytecode during their 2198 execution. By using pipes or other transports made available to 2199 the process as file descriptors supporting the read/write 2200 syscalls, it's possible to isolate those applications in 2201 their own address space using seccomp. Once seccomp is 2202 enabled via /proc/<pid>/seccomp, it cannot be disabled 2203 and the task is only allowed to execute a few safe syscalls 2204 defined by each seccomp mode. 2205 2206 If unsure, say Y. Only embedded should say N here. 2207 2208config USE_OF 2209 bool "Flattened Device Tree support" 2210 select OF 2211 select OF_FLATTREE 2212 help 2213 Include support for flattened device tree machine descriptions. 2214 2215endmenu 2216 2217config LOCKDEP_SUPPORT 2218 bool 2219 default y 2220 2221config STACKTRACE_SUPPORT 2222 bool 2223 default y 2224 2225source "init/Kconfig" 2226 2227source "kernel/Kconfig.freezer" 2228 2229menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2230 2231config HW_HAS_EISA 2232 bool 2233config HW_HAS_PCI 2234 bool 2235 2236config PCI 2237 bool "Support for PCI controller" 2238 depends on HW_HAS_PCI 2239 select PCI_DOMAINS 2240 help 2241 Find out whether you have a PCI motherboard. PCI is the name of a 2242 bus system, i.e. the way the CPU talks to the other stuff inside 2243 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2244 say Y, otherwise N. 2245 2246config PCI_DOMAINS 2247 bool 2248 2249source "drivers/pci/Kconfig" 2250 2251# 2252# ISA support is now enabled via select. Too many systems still have the one 2253# or other ISA chip on the board that users don't know about so don't expect 2254# users to choose the right thing ... 2255# 2256config ISA 2257 bool 2258 2259config EISA 2260 bool "EISA support" 2261 depends on HW_HAS_EISA 2262 select ISA 2263 select GENERIC_ISA_DMA 2264 ---help--- 2265 The Extended Industry Standard Architecture (EISA) bus was 2266 developed as an open alternative to the IBM MicroChannel bus. 2267 2268 The EISA bus provided some of the features of the IBM MicroChannel 2269 bus while maintaining backward compatibility with cards made for 2270 the older ISA bus. The EISA bus saw limited use between 1988 and 2271 1995 when it was made obsolete by the PCI bus. 2272 2273 Say Y here if you are building a kernel for an EISA-based machine. 2274 2275 Otherwise, say N. 2276 2277source "drivers/eisa/Kconfig" 2278 2279config TC 2280 bool "TURBOchannel support" 2281 depends on MACH_DECSTATION 2282 help 2283 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2284 processors. TURBOchannel programming specifications are available 2285 at: 2286 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2287 and: 2288 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2289 Linux driver support status is documented at: 2290 <http://www.linux-mips.org/wiki/DECstation> 2291 2292#config ACCESSBUS 2293# bool "Access.Bus support" 2294# depends on TC 2295 2296config MMU 2297 bool 2298 default y 2299 2300config I8253 2301 bool 2302 select MIPS_EXTERNAL_TIMER 2303 2304config ZONE_DMA32 2305 bool 2306 2307source "drivers/pcmcia/Kconfig" 2308 2309source "drivers/pci/hotplug/Kconfig" 2310 2311endmenu 2312 2313menu "Executable file formats" 2314 2315source "fs/Kconfig.binfmt" 2316 2317config TRAD_SIGNALS 2318 bool 2319 2320config MIPS32_COMPAT 2321 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2322 depends on 64BIT 2323 help 2324 Select this option if you want Linux/MIPS 32-bit binary 2325 compatibility. Since all software available for Linux/MIPS is 2326 currently 32-bit you should say Y here. 2327 2328config COMPAT 2329 bool 2330 depends on MIPS32_COMPAT 2331 default y 2332 2333config SYSVIPC_COMPAT 2334 bool 2335 depends on COMPAT && SYSVIPC 2336 default y 2337 2338config MIPS32_O32 2339 bool "Kernel support for o32 binaries" 2340 depends on MIPS32_COMPAT 2341 help 2342 Select this option if you want to run o32 binaries. These are pure 2343 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2344 existing binaries are in this format. 2345 2346 If unsure, say Y. 2347 2348config MIPS32_N32 2349 bool "Kernel support for n32 binaries" 2350 depends on MIPS32_COMPAT 2351 help 2352 Select this option if you want to run n32 binaries. These are 2353 64-bit binaries using 32-bit quantities for addressing and certain 2354 data that would normally be 64-bit. They are used in special 2355 cases. 2356 2357 If unsure, say N. 2358 2359config BINFMT_ELF32 2360 bool 2361 default y if MIPS32_O32 || MIPS32_N32 2362 2363endmenu 2364 2365menu "Power management options" 2366 2367config ARCH_HIBERNATION_POSSIBLE 2368 def_bool y 2369 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2370 2371config ARCH_SUSPEND_POSSIBLE 2372 def_bool y 2373 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2374 2375source "kernel/power/Kconfig" 2376 2377endmenu 2378 2379source "arch/mips/kernel/cpufreq/Kconfig" 2380 2381source "net/Kconfig" 2382 2383source "drivers/Kconfig" 2384 2385source "fs/Kconfig" 2386 2387source "arch/mips/Kconfig.debug" 2388 2389source "security/Kconfig" 2390 2391source "crypto/Kconfig" 2392 2393source "lib/Kconfig" 2394