1config MIPS 2 bool 3 default y 4 select HAVE_IDE 5 select HAVE_OPROFILE 6 select HAVE_ARCH_KGDB 7 # Horrible source of confusion. Die, die, die ... 8 select EMBEDDED 9 select RTC_LIB 10 11mainmenu "Linux/MIPS Kernel Configuration" 12 13menu "Machine selection" 14 15config ZONE_DMA 16 bool 17 18choice 19 prompt "System type" 20 default SGI_IP22 21 22config MACH_ALCHEMY 23 bool "Alchemy processor based machines" 24 25config BASLER_EXCITE 26 bool "Basler eXcite smart camera" 27 select CEVT_R4K 28 select CSRC_R4K 29 select DMA_COHERENT 30 select HW_HAS_PCI 31 select IRQ_CPU 32 select IRQ_CPU_RM7K 33 select IRQ_CPU_RM9K 34 select MIPS_RM9122 35 select SYS_HAS_CPU_RM9000 36 select SYS_SUPPORTS_32BIT_KERNEL 37 select SYS_SUPPORTS_BIG_ENDIAN 38 help 39 The eXcite is a smart camera platform manufactured by 40 Basler Vision Technologies AG. 41 42config BCM47XX 43 bool "BCM47XX based boards" 44 select CEVT_R4K 45 select CSRC_R4K 46 select DMA_NONCOHERENT 47 select HW_HAS_PCI 48 select IRQ_CPU 49 select SYS_HAS_CPU_MIPS32_R1 50 select SYS_SUPPORTS_32BIT_KERNEL 51 select SYS_SUPPORTS_LITTLE_ENDIAN 52 select SSB 53 select SSB_DRIVER_MIPS 54 select SSB_DRIVER_EXTIF 55 select SSB_EMBEDDED 56 select SSB_PCICORE_HOSTMODE if PCI 57 select GENERIC_GPIO 58 select SYS_HAS_EARLY_PRINTK 59 select CFE 60 help 61 Support for BCM47XX based boards 62 63config MIPS_COBALT 64 bool "Cobalt Server" 65 select CEVT_R4K 66 select CSRC_R4K 67 select CEVT_GT641XX 68 select DMA_NONCOHERENT 69 select HW_HAS_PCI 70 select I8253 71 select I8259 72 select IRQ_CPU 73 select IRQ_GT641XX 74 select PCI_GT64XXX_PCI0 75 select SYS_HAS_CPU_NEVADA 76 select SYS_HAS_EARLY_PRINTK 77 select SYS_SUPPORTS_32BIT_KERNEL 78 select SYS_SUPPORTS_64BIT_KERNEL 79 select SYS_SUPPORTS_LITTLE_ENDIAN 80 select GENERIC_HARDIRQS_NO__DO_IRQ 81 82config MACH_DECSTATION 83 bool "DECstations" 84 select BOOT_ELF32 85 select CEVT_DS1287 86 select CEVT_R4K 87 select CSRC_IOASIC 88 select CSRC_R4K 89 select CPU_DADDI_WORKAROUNDS if 64BIT 90 select CPU_R4000_WORKAROUNDS if 64BIT 91 select CPU_R4400_WORKAROUNDS if 64BIT 92 select DMA_NONCOHERENT 93 select NO_IOPORT 94 select IRQ_CPU 95 select SYS_HAS_CPU_R3000 96 select SYS_HAS_CPU_R4X00 97 select SYS_SUPPORTS_32BIT_KERNEL 98 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 99 select SYS_SUPPORTS_LITTLE_ENDIAN 100 select SYS_SUPPORTS_128HZ 101 select SYS_SUPPORTS_256HZ 102 select SYS_SUPPORTS_1024HZ 103 help 104 This enables support for DEC's MIPS based workstations. For details 105 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 106 DECstation porting pages on <http://decstation.unix-ag.org/>. 107 108 If you have one of the following DECstation Models you definitely 109 want to choose R4xx0 for the CPU Type: 110 111 DECstation 5000/50 112 DECstation 5000/150 113 DECstation 5000/260 114 DECsystem 5900/260 115 116 otherwise choose R3000. 117 118config MACH_JAZZ 119 bool "Jazz family of machines" 120 select ARC 121 select ARC32 122 select ARCH_MAY_HAVE_PC_FDC 123 select CEVT_R4K 124 select CSRC_R4K 125 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 126 select GENERIC_ISA_DMA 127 select IRQ_CPU 128 select I8253 129 select I8259 130 select ISA 131 select SYS_HAS_CPU_R4X00 132 select SYS_SUPPORTS_32BIT_KERNEL 133 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 134 select SYS_SUPPORTS_100HZ 135 select GENERIC_HARDIRQS_NO__DO_IRQ 136 help 137 This a family of machines based on the MIPS R4030 chipset which was 138 used by several vendors to build RISC/os and Windows NT workstations. 139 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and 140 Olivetti M700-10 workstations. 141 142config LASAT 143 bool "LASAT Networks platforms" 144 select CEVT_R4K 145 select CSRC_R4K 146 select DMA_NONCOHERENT 147 select SYS_HAS_EARLY_PRINTK 148 select HW_HAS_PCI 149 select IRQ_CPU 150 select PCI_GT64XXX_PCI0 151 select MIPS_NILE4 152 select R5000_CPU_SCACHE 153 select SYS_HAS_CPU_R5000 154 select SYS_SUPPORTS_32BIT_KERNEL 155 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 156 select SYS_SUPPORTS_LITTLE_ENDIAN 157 select GENERIC_HARDIRQS_NO__DO_IRQ 158 159config LEMOTE_FULONG 160 bool "Lemote Fulong mini-PC" 161 select ARCH_SPARSEMEM_ENABLE 162 select CEVT_R4K 163 select CSRC_R4K 164 select SYS_HAS_CPU_LOONGSON2 165 select DMA_NONCOHERENT 166 select BOOT_ELF32 167 select BOARD_SCACHE 168 select HAVE_STD_PC_SERIAL_PORT 169 select HW_HAS_PCI 170 select I8259 171 select ISA 172 select IRQ_CPU 173 select SYS_SUPPORTS_32BIT_KERNEL 174 select SYS_SUPPORTS_64BIT_KERNEL 175 select SYS_SUPPORTS_LITTLE_ENDIAN 176 select SYS_SUPPORTS_HIGHMEM 177 select SYS_HAS_EARLY_PRINTK 178 select GENERIC_HARDIRQS_NO__DO_IRQ 179 select GENERIC_ISA_DMA_SUPPORT_BROKEN 180 select CPU_HAS_WB 181 help 182 Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and 183 an FPGA northbridge 184 185config MIPS_MALTA 186 bool "MIPS Malta board" 187 select ARCH_MAY_HAVE_PC_FDC 188 select BOOT_ELF32 189 select BOOT_RAW 190 select CEVT_R4K 191 select CSRC_R4K 192 select DMA_NONCOHERENT 193 select GENERIC_ISA_DMA 194 select IRQ_CPU 195 select IRQ_GIC 196 select HW_HAS_PCI 197 select I8253 198 select I8259 199 select MIPS_BOARDS_GEN 200 select MIPS_BONITO64 201 select MIPS_CPU_SCACHE 202 select PCI_GT64XXX_PCI0 203 select MIPS_MSC 204 select SWAP_IO_SPACE 205 select SYS_HAS_CPU_MIPS32_R1 206 select SYS_HAS_CPU_MIPS32_R2 207 select SYS_HAS_CPU_MIPS64_R1 208 select SYS_HAS_CPU_NEVADA 209 select SYS_HAS_CPU_RM7000 210 select SYS_HAS_EARLY_PRINTK 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_64BIT_KERNEL 213 select SYS_SUPPORTS_BIG_ENDIAN 214 select SYS_SUPPORTS_LITTLE_ENDIAN 215 select SYS_SUPPORTS_MIPS_CMP if BROKEN # because SYNC_R4K is broken 216 select SYS_SUPPORTS_MULTITHREADING 217 select SYS_SUPPORTS_SMARTMIPS 218 help 219 This enables support for the MIPS Technologies Malta evaluation 220 board. 221 222config MIPS_SIM 223 bool 'MIPS simulator (MIPSsim)' 224 select CEVT_R4K 225 select CSRC_R4K 226 select DMA_NONCOHERENT 227 select SYS_HAS_EARLY_PRINTK 228 select IRQ_CPU 229 select BOOT_RAW 230 select SYS_HAS_CPU_MIPS32_R1 231 select SYS_HAS_CPU_MIPS32_R2 232 select SYS_HAS_EARLY_PRINTK 233 select SYS_SUPPORTS_32BIT_KERNEL 234 select SYS_SUPPORTS_BIG_ENDIAN 235 select SYS_SUPPORTS_MULTITHREADING 236 select SYS_SUPPORTS_LITTLE_ENDIAN 237 help 238 This option enables support for MIPS Technologies MIPSsim software 239 emulator. 240 241config MARKEINS 242 bool "NEC EMMA2RH Mark-eins" 243 select CEVT_R4K 244 select CSRC_R4K 245 select DMA_NONCOHERENT 246 select HW_HAS_PCI 247 select IRQ_CPU 248 select SWAP_IO_SPACE 249 select SYS_SUPPORTS_32BIT_KERNEL 250 select SYS_SUPPORTS_BIG_ENDIAN 251 select SYS_SUPPORTS_LITTLE_ENDIAN 252 select SYS_HAS_CPU_R5000 253 help 254 This enables support for the R5432-based NEC Mark-eins 255 boards with R5500 CPU. 256 257config MACH_VR41XX 258 bool "NEC VR4100 series based machines" 259 select CEVT_R4K 260 select CSRC_R4K 261 select SYS_HAS_CPU_VR41XX 262 select GENERIC_HARDIRQS_NO__DO_IRQ 263 264config PNX8550_JBS 265 bool "NXP PNX8550 based JBS board" 266 select PNX8550 267 select SYS_SUPPORTS_LITTLE_ENDIAN 268 269config PNX8550_STB810 270 bool "NXP PNX8550 based STB810 board" 271 select PNX8550 272 select SYS_SUPPORTS_LITTLE_ENDIAN 273 274config PMC_MSP 275 bool "PMC-Sierra MSP chipsets" 276 depends on EXPERIMENTAL 277 select DMA_NONCOHERENT 278 select SWAP_IO_SPACE 279 select NO_EXCEPT_FILL 280 select BOOT_RAW 281 select SYS_HAS_CPU_MIPS32_R1 282 select SYS_HAS_CPU_MIPS32_R2 283 select SYS_SUPPORTS_32BIT_KERNEL 284 select SYS_SUPPORTS_BIG_ENDIAN 285 select IRQ_CPU 286 select SERIAL_8250 287 select SERIAL_8250_CONSOLE 288 help 289 This adds support for the PMC-Sierra family of Multi-Service 290 Processor System-On-A-Chips. These parts include a number 291 of integrated peripherals, interfaces and DSPs in addition to 292 a variety of MIPS cores. 293 294config PMC_YOSEMITE 295 bool "PMC-Sierra Yosemite eval board" 296 select CEVT_R4K 297 select CSRC_R4K 298 select DMA_COHERENT 299 select HW_HAS_PCI 300 select IRQ_CPU 301 select IRQ_CPU_RM7K 302 select IRQ_CPU_RM9K 303 select SWAP_IO_SPACE 304 select SYS_HAS_CPU_RM9000 305 select SYS_HAS_EARLY_PRINTK 306 select SYS_SUPPORTS_32BIT_KERNEL 307 select SYS_SUPPORTS_64BIT_KERNEL 308 select SYS_SUPPORTS_BIG_ENDIAN 309 select SYS_SUPPORTS_HIGHMEM 310 select SYS_SUPPORTS_SMP 311 help 312 Yosemite is an evaluation board for the RM9000x2 processor 313 manufactured by PMC-Sierra. 314 315config SGI_IP22 316 bool "SGI IP22 (Indy/Indigo2)" 317 select ARC 318 select ARC32 319 select BOOT_ELF32 320 select CEVT_R4K 321 select CSRC_R4K 322 select DEFAULT_SGI_PARTITION 323 select DMA_NONCOHERENT 324 select HW_HAS_EISA 325 select I8253 326 select I8259 327 select IP22_CPU_SCACHE 328 select IRQ_CPU 329 select GENERIC_ISA_DMA_SUPPORT_BROKEN 330 select SGI_HAS_DS1286 331 select SGI_HAS_I8042 332 select SGI_HAS_INDYDOG 333 select SGI_HAS_HAL2 334 select SGI_HAS_SEEQ 335 select SGI_HAS_WD93 336 select SGI_HAS_ZILOG 337 select SWAP_IO_SPACE 338 select SYS_HAS_CPU_R4X00 339 select SYS_HAS_CPU_R5000 340 select SYS_HAS_EARLY_PRINTK 341 select SYS_SUPPORTS_32BIT_KERNEL 342 select SYS_SUPPORTS_64BIT_KERNEL 343 select SYS_SUPPORTS_BIG_ENDIAN 344 help 345 This are the SGI Indy, Challenge S and Indigo2, as well as certain 346 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 347 that runs on these, say Y here. 348 349config SGI_IP27 350 bool "SGI IP27 (Origin200/2000)" 351 select ARC 352 select ARC64 353 select BOOT_ELF64 354 select DEFAULT_SGI_PARTITION 355 select DMA_IP27 356 select SYS_HAS_EARLY_PRINTK 357 select HW_HAS_PCI 358 select NR_CPUS_DEFAULT_64 359 select SYS_HAS_CPU_R10000 360 select SYS_SUPPORTS_64BIT_KERNEL 361 select SYS_SUPPORTS_BIG_ENDIAN 362 select SYS_SUPPORTS_NUMA 363 select SYS_SUPPORTS_SMP 364 select GENERIC_HARDIRQS_NO__DO_IRQ 365 help 366 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 367 workstations. To compile a Linux kernel that runs on these, say Y 368 here. 369 370config SGI_IP28 371 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 372 depends on EXPERIMENTAL 373 select ARC 374 select ARC64 375 select BOOT_ELF64 376 select CEVT_R4K 377 select CSRC_R4K 378 select DEFAULT_SGI_PARTITION 379 select DMA_NONCOHERENT 380 select GENERIC_ISA_DMA_SUPPORT_BROKEN 381 select IRQ_CPU 382 select HW_HAS_EISA 383 select I8253 384 select I8259 385 select SGI_HAS_DS1286 386 select SGI_HAS_I8042 387 select SGI_HAS_INDYDOG 388 select SGI_HAS_HAL2 389 select SGI_HAS_SEEQ 390 select SGI_HAS_WD93 391 select SGI_HAS_ZILOG 392 select SWAP_IO_SPACE 393 select SYS_HAS_CPU_R10000 394 select SYS_HAS_EARLY_PRINTK 395 select SYS_SUPPORTS_64BIT_KERNEL 396 select SYS_SUPPORTS_BIG_ENDIAN 397 help 398 This is the SGI Indigo2 with R10000 processor. To compile a Linux 399 kernel that runs on these, say Y here. 400 401config SGI_IP32 402 bool "SGI IP32 (O2)" 403 select ARC 404 select ARC32 405 select BOOT_ELF32 406 select CEVT_R4K 407 select CSRC_R4K 408 select DMA_NONCOHERENT 409 select HW_HAS_PCI 410 select IRQ_CPU 411 select R5000_CPU_SCACHE 412 select RM7000_CPU_SCACHE 413 select SYS_HAS_CPU_R5000 414 select SYS_HAS_CPU_R10000 if BROKEN 415 select SYS_HAS_CPU_RM7000 416 select SYS_HAS_CPU_NEVADA 417 select SYS_SUPPORTS_64BIT_KERNEL 418 select SYS_SUPPORTS_BIG_ENDIAN 419 help 420 If you want this kernel to run on SGI O2 workstation, say Y here. 421 422config SIBYTE_CRHINE 423 bool "Sibyte BCM91120C-CRhine" 424 depends on EXPERIMENTAL 425 select BOOT_ELF32 426 select DMA_COHERENT 427 select SIBYTE_BCM1120 428 select SWAP_IO_SPACE 429 select SYS_HAS_CPU_SB1 430 select SYS_SUPPORTS_BIG_ENDIAN 431 select SYS_SUPPORTS_LITTLE_ENDIAN 432 433config SIBYTE_CARMEL 434 bool "Sibyte BCM91120x-Carmel" 435 depends on EXPERIMENTAL 436 select BOOT_ELF32 437 select DMA_COHERENT 438 select SIBYTE_BCM1120 439 select SWAP_IO_SPACE 440 select SYS_HAS_CPU_SB1 441 select SYS_SUPPORTS_BIG_ENDIAN 442 select SYS_SUPPORTS_LITTLE_ENDIAN 443 444config SIBYTE_CRHONE 445 bool "Sibyte BCM91125C-CRhone" 446 depends on EXPERIMENTAL 447 select BOOT_ELF32 448 select DMA_COHERENT 449 select SIBYTE_BCM1125 450 select SWAP_IO_SPACE 451 select SYS_HAS_CPU_SB1 452 select SYS_SUPPORTS_BIG_ENDIAN 453 select SYS_SUPPORTS_HIGHMEM 454 select SYS_SUPPORTS_LITTLE_ENDIAN 455 456config SIBYTE_RHONE 457 bool "Sibyte BCM91125E-Rhone" 458 depends on EXPERIMENTAL 459 select BOOT_ELF32 460 select DMA_COHERENT 461 select SIBYTE_BCM1125H 462 select SWAP_IO_SPACE 463 select SYS_HAS_CPU_SB1 464 select SYS_SUPPORTS_BIG_ENDIAN 465 select SYS_SUPPORTS_LITTLE_ENDIAN 466 467config SIBYTE_SWARM 468 bool "Sibyte BCM91250A-SWARM" 469 select BOOT_ELF32 470 select DMA_COHERENT 471 select NR_CPUS_DEFAULT_2 472 select SIBYTE_SB1250 473 select SWAP_IO_SPACE 474 select SYS_HAS_CPU_SB1 475 select SYS_SUPPORTS_BIG_ENDIAN 476 select SYS_SUPPORTS_HIGHMEM 477 select SYS_SUPPORTS_LITTLE_ENDIAN 478 select ZONE_DMA32 if 64BIT 479 480config SIBYTE_LITTLESUR 481 bool "Sibyte BCM91250C2-LittleSur" 482 depends on EXPERIMENTAL 483 select BOOT_ELF32 484 select DMA_COHERENT 485 select NR_CPUS_DEFAULT_2 486 select SIBYTE_SB1250 487 select SWAP_IO_SPACE 488 select SYS_HAS_CPU_SB1 489 select SYS_SUPPORTS_BIG_ENDIAN 490 select SYS_SUPPORTS_HIGHMEM 491 select SYS_SUPPORTS_LITTLE_ENDIAN 492 493config SIBYTE_SENTOSA 494 bool "Sibyte BCM91250E-Sentosa" 495 depends on EXPERIMENTAL 496 select BOOT_ELF32 497 select DMA_COHERENT 498 select NR_CPUS_DEFAULT_2 499 select SIBYTE_SB1250 500 select SWAP_IO_SPACE 501 select SYS_HAS_CPU_SB1 502 select SYS_SUPPORTS_BIG_ENDIAN 503 select SYS_SUPPORTS_LITTLE_ENDIAN 504 505config SIBYTE_BIGSUR 506 bool "Sibyte BCM91480B-BigSur" 507 select BOOT_ELF32 508 select DMA_COHERENT 509 select NR_CPUS_DEFAULT_4 510 select SIBYTE_BCM1x80 511 select SWAP_IO_SPACE 512 select SYS_HAS_CPU_SB1 513 select SYS_SUPPORTS_BIG_ENDIAN 514 select SYS_SUPPORTS_HIGHMEM 515 select SYS_SUPPORTS_LITTLE_ENDIAN 516 select ZONE_DMA32 if 64BIT 517 518config SNI_RM 519 bool "SNI RM200/300/400" 520 select ARC if CPU_LITTLE_ENDIAN 521 select ARC32 if CPU_LITTLE_ENDIAN 522 select SNIPROM if CPU_BIG_ENDIAN 523 select ARCH_MAY_HAVE_PC_FDC 524 select BOOT_ELF32 525 select CEVT_R4K 526 select CSRC_R4K 527 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 528 select DMA_NONCOHERENT 529 select GENERIC_ISA_DMA 530 select HW_HAS_EISA 531 select HW_HAS_PCI 532 select IRQ_CPU 533 select I8253 534 select I8259 535 select ISA 536 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 537 select SYS_HAS_CPU_R4X00 538 select SYS_HAS_CPU_R5000 539 select SYS_HAS_CPU_R10000 540 select R5000_CPU_SCACHE 541 select SYS_HAS_EARLY_PRINTK 542 select SYS_SUPPORTS_32BIT_KERNEL 543 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 544 select SYS_SUPPORTS_BIG_ENDIAN 545 select SYS_SUPPORTS_HIGHMEM 546 select SYS_SUPPORTS_LITTLE_ENDIAN 547 help 548 The SNI RM200/300/400 are MIPS-based machines manufactured by 549 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 550 Technology and now in turn merged with Fujitsu. Say Y here to 551 support this machine type. 552 553config MACH_TX39XX 554 bool "Toshiba TX39 series based machines" 555 556config MACH_TX49XX 557 bool "Toshiba TX49 series based machines" 558 559config MIKROTIK_RB532 560 bool "Mikrotik RB532 boards" 561 select CEVT_R4K 562 select CSRC_R4K 563 select DMA_NONCOHERENT 564 select GENERIC_HARDIRQS_NO__DO_IRQ 565 select HW_HAS_PCI 566 select IRQ_CPU 567 select SYS_HAS_CPU_MIPS32_R1 568 select SYS_SUPPORTS_32BIT_KERNEL 569 select SYS_SUPPORTS_LITTLE_ENDIAN 570 select SWAP_IO_SPACE 571 select BOOT_RAW 572 select ARCH_REQUIRE_GPIOLIB 573 help 574 Support the Mikrotik(tm) RouterBoard 532 series, 575 based on the IDT RC32434 SoC. 576 577config WR_PPMC 578 bool "Wind River PPMC board" 579 select CEVT_R4K 580 select CSRC_R4K 581 select IRQ_CPU 582 select BOOT_ELF32 583 select DMA_NONCOHERENT 584 select HW_HAS_PCI 585 select PCI_GT64XXX_PCI0 586 select SWAP_IO_SPACE 587 select SYS_HAS_CPU_MIPS32_R1 588 select SYS_HAS_CPU_MIPS32_R2 589 select SYS_HAS_CPU_MIPS64_R1 590 select SYS_HAS_CPU_NEVADA 591 select SYS_HAS_CPU_RM7000 592 select SYS_SUPPORTS_32BIT_KERNEL 593 select SYS_SUPPORTS_64BIT_KERNEL 594 select SYS_SUPPORTS_BIG_ENDIAN 595 select SYS_SUPPORTS_LITTLE_ENDIAN 596 help 597 This enables support for the Wind River MIPS32 4KC PPMC evaluation 598 board, which is based on GT64120 bridge chip. 599 600endchoice 601 602source "arch/mips/alchemy/Kconfig" 603source "arch/mips/basler/excite/Kconfig" 604source "arch/mips/jazz/Kconfig" 605source "arch/mips/lasat/Kconfig" 606source "arch/mips/pmc-sierra/Kconfig" 607source "arch/mips/sgi-ip27/Kconfig" 608source "arch/mips/sibyte/Kconfig" 609source "arch/mips/txx9/Kconfig" 610source "arch/mips/vr41xx/Kconfig" 611 612endmenu 613 614config RWSEM_GENERIC_SPINLOCK 615 bool 616 default y 617 618config RWSEM_XCHGADD_ALGORITHM 619 bool 620 621config ARCH_HAS_ILOG2_U32 622 bool 623 default n 624 625config ARCH_HAS_ILOG2_U64 626 bool 627 default n 628 629config ARCH_SUPPORTS_OPROFILE 630 bool 631 default y if !MIPS_MT_SMTC 632 633config GENERIC_FIND_NEXT_BIT 634 bool 635 default y 636 637config GENERIC_HWEIGHT 638 bool 639 default y 640 641config GENERIC_CALIBRATE_DELAY 642 bool 643 default y 644 645config GENERIC_CLOCKEVENTS 646 bool 647 default y 648 649config GENERIC_TIME 650 bool 651 default y 652 653config GENERIC_CMOS_UPDATE 654 bool 655 default y 656 657config SCHED_NO_NO_OMIT_FRAME_POINTER 658 bool 659 default y 660 661config GENERIC_HARDIRQS_NO__DO_IRQ 662 bool 663 default n 664 665# 666# Select some configuration options automatically based on user selections. 667# 668config ARC 669 bool 670 671config ARCH_MAY_HAVE_PC_FDC 672 bool 673 674config BOOT_RAW 675 bool 676 677config CEVT_BCM1480 678 bool 679 680config CEVT_DS1287 681 bool 682 683config CEVT_GT641XX 684 bool 685 686config CEVT_R4K 687 bool 688 689config CEVT_SB1250 690 bool 691 692config CEVT_TXX9 693 bool 694 695config CSRC_BCM1480 696 bool 697 698config CSRC_IOASIC 699 bool 700 701config CSRC_R4K 702 bool 703 704config CSRC_SB1250 705 bool 706 707config GPIO_TXX9 708 select GENERIC_GPIO 709 select ARCH_REQUIRE_GPIOLIB 710 bool 711 712config CFE 713 bool 714 715config DMA_COHERENT 716 bool 717 718config DMA_IP27 719 bool 720 721config DMA_NONCOHERENT 722 bool 723 select DMA_NEED_PCI_MAP_STATE 724 725config DMA_NEED_PCI_MAP_STATE 726 bool 727 728config EARLY_PRINTK 729 bool "Early printk" if EMBEDDED && DEBUG_KERNEL 730 depends on SYS_HAS_EARLY_PRINTK 731 default y 732 help 733 This option enables special console drivers which allow the kernel 734 to print messages very early in the bootup process. 735 736 This is useful for kernel debugging when your machine crashes very 737 early before the console code is initialized. For normal operation, 738 it is not recommended because it looks ugly on some machines and 739 doesn't cooperate with an X server. You should normally say N here, 740 unless you want to debug such a crash. 741 742config SYS_HAS_EARLY_PRINTK 743 bool 744 745config HOTPLUG_CPU 746 bool 747 default n 748 749config I8259 750 bool 751 752config MIPS_BONITO64 753 bool 754 755config MIPS_MSC 756 bool 757 758config MIPS_NILE4 759 bool 760 761config MIPS_DISABLE_OBSOLETE_IDE 762 bool 763 764config SYNC_R4K 765 bool 766 767config NO_IOPORT 768 def_bool n 769 770config GENERIC_ISA_DMA 771 bool 772 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 773 774config GENERIC_ISA_DMA_SUPPORT_BROKEN 775 bool 776 select GENERIC_ISA_DMA 777 778config GENERIC_GPIO 779 bool 780 781# 782# Endianess selection. Sufficiently obscure so many users don't know what to 783# answer,so we try hard to limit the available choices. Also the use of a 784# choice statement should be more obvious to the user. 785# 786choice 787 prompt "Endianess selection" 788 help 789 Some MIPS machines can be configured for either little or big endian 790 byte order. These modes require different kernels and a different 791 Linux distribution. In general there is one preferred byteorder for a 792 particular system but some systems are just as commonly used in the 793 one or the other endianness. 794 795config CPU_BIG_ENDIAN 796 bool "Big endian" 797 depends on SYS_SUPPORTS_BIG_ENDIAN 798 799config CPU_LITTLE_ENDIAN 800 bool "Little endian" 801 depends on SYS_SUPPORTS_LITTLE_ENDIAN 802 help 803 804endchoice 805 806config SYS_SUPPORTS_APM_EMULATION 807 bool 808 809config SYS_SUPPORTS_BIG_ENDIAN 810 bool 811 812config SYS_SUPPORTS_LITTLE_ENDIAN 813 bool 814 815config IRQ_CPU 816 bool 817 818config IRQ_CPU_RM7K 819 bool 820 821config IRQ_CPU_RM9K 822 bool 823 824config IRQ_MSP_SLP 825 bool 826 827config IRQ_MSP_CIC 828 bool 829 830config IRQ_TXX9 831 bool 832 833config IRQ_GT641XX 834 bool 835 836config IRQ_GIC 837 bool 838 839config MIPS_BOARDS_GEN 840 bool 841 842config PCI_GT64XXX_PCI0 843 bool 844 845config NO_EXCEPT_FILL 846 bool 847 848config MIPS_RM9122 849 bool 850 select SERIAL_RM9000 851 852config PNX8550 853 bool 854 select SOC_PNX8550 855 856config SOC_PNX8550 857 bool 858 select DMA_NONCOHERENT 859 select HW_HAS_PCI 860 select SYS_HAS_CPU_MIPS32_R1 861 select SYS_HAS_EARLY_PRINTK 862 select SYS_SUPPORTS_32BIT_KERNEL 863 select GENERIC_HARDIRQS_NO__DO_IRQ 864 select GENERIC_GPIO 865 866config SWAP_IO_SPACE 867 bool 868 869config EMMA2RH 870 bool 871 depends on MARKEINS 872 default y 873 874config SERIAL_RM9000 875 bool 876 877config SGI_HAS_DS1286 878 bool 879 880config SGI_HAS_INDYDOG 881 bool 882 883config SGI_HAS_HAL2 884 bool 885 886config SGI_HAS_SEEQ 887 bool 888 889config SGI_HAS_WD93 890 bool 891 892config SGI_HAS_ZILOG 893 bool 894 895config SGI_HAS_I8042 896 bool 897 898config DEFAULT_SGI_PARTITION 899 bool 900 901config ARC32 902 bool 903 904config SNIPROM 905 bool 906 907config BOOT_ELF32 908 bool 909 910config MIPS_L1_CACHE_SHIFT 911 int 912 default "4" if MACH_DECSTATION || MIKROTIK_RB532 913 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM 914 default "4" if PMC_MSP4200_EVAL 915 default "5" 916 917config HAVE_STD_PC_SERIAL_PORT 918 bool 919 920config ARC_CONSOLE 921 bool "ARC console support" 922 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 923 924config ARC_MEMORY 925 bool 926 depends on MACH_JAZZ || SNI_RM || SGI_IP32 927 default y 928 929config ARC_PROMLIB 930 bool 931 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 932 default y 933 934config ARC64 935 bool 936 937config BOOT_ELF64 938 bool 939 940menu "CPU selection" 941 942choice 943 prompt "CPU type" 944 default CPU_R4X00 945 946config CPU_LOONGSON2 947 bool "Loongson 2" 948 depends on SYS_HAS_CPU_LOONGSON2 949 select CPU_SUPPORTS_32BIT_KERNEL 950 select CPU_SUPPORTS_64BIT_KERNEL 951 select CPU_SUPPORTS_HIGHMEM 952 help 953 The Loongson 2E processor implements the MIPS III instruction set 954 with many extensions. 955 956config CPU_MIPS32_R1 957 bool "MIPS32 Release 1" 958 depends on SYS_HAS_CPU_MIPS32_R1 959 select CPU_HAS_LLSC 960 select CPU_HAS_PREFETCH 961 select CPU_SUPPORTS_32BIT_KERNEL 962 select CPU_SUPPORTS_HIGHMEM 963 help 964 Choose this option to build a kernel for release 1 or later of the 965 MIPS32 architecture. Most modern embedded systems with a 32-bit 966 MIPS processor are based on a MIPS32 processor. If you know the 967 specific type of processor in your system, choose those that one 968 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 969 Release 2 of the MIPS32 architecture is available since several 970 years so chances are you even have a MIPS32 Release 2 processor 971 in which case you should choose CPU_MIPS32_R2 instead for better 972 performance. 973 974config CPU_MIPS32_R2 975 bool "MIPS32 Release 2" 976 depends on SYS_HAS_CPU_MIPS32_R2 977 select CPU_HAS_LLSC 978 select CPU_HAS_PREFETCH 979 select CPU_SUPPORTS_32BIT_KERNEL 980 select CPU_SUPPORTS_HIGHMEM 981 help 982 Choose this option to build a kernel for release 2 or later of the 983 MIPS32 architecture. Most modern embedded systems with a 32-bit 984 MIPS processor are based on a MIPS32 processor. If you know the 985 specific type of processor in your system, choose those that one 986 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 987 988config CPU_MIPS64_R1 989 bool "MIPS64 Release 1" 990 depends on SYS_HAS_CPU_MIPS64_R1 991 select CPU_HAS_LLSC 992 select CPU_HAS_PREFETCH 993 select CPU_SUPPORTS_32BIT_KERNEL 994 select CPU_SUPPORTS_64BIT_KERNEL 995 select CPU_SUPPORTS_HIGHMEM 996 help 997 Choose this option to build a kernel for release 1 or later of the 998 MIPS64 architecture. Many modern embedded systems with a 64-bit 999 MIPS processor are based on a MIPS64 processor. If you know the 1000 specific type of processor in your system, choose those that one 1001 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1002 Release 2 of the MIPS64 architecture is available since several 1003 years so chances are you even have a MIPS64 Release 2 processor 1004 in which case you should choose CPU_MIPS64_R2 instead for better 1005 performance. 1006 1007config CPU_MIPS64_R2 1008 bool "MIPS64 Release 2" 1009 depends on SYS_HAS_CPU_MIPS64_R2 1010 select CPU_HAS_LLSC 1011 select CPU_HAS_PREFETCH 1012 select CPU_SUPPORTS_32BIT_KERNEL 1013 select CPU_SUPPORTS_64BIT_KERNEL 1014 select CPU_SUPPORTS_HIGHMEM 1015 help 1016 Choose this option to build a kernel for release 2 or later of the 1017 MIPS64 architecture. Many modern embedded systems with a 64-bit 1018 MIPS processor are based on a MIPS64 processor. If you know the 1019 specific type of processor in your system, choose those that one 1020 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1021 1022config CPU_R3000 1023 bool "R3000" 1024 depends on SYS_HAS_CPU_R3000 1025 select CPU_HAS_WB 1026 select CPU_SUPPORTS_32BIT_KERNEL 1027 select CPU_SUPPORTS_HIGHMEM 1028 help 1029 Please make sure to pick the right CPU type. Linux/MIPS is not 1030 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1031 *not* work on R4000 machines and vice versa. However, since most 1032 of the supported machines have an R4000 (or similar) CPU, R4x00 1033 might be a safe bet. If the resulting kernel does not work, 1034 try to recompile with R3000. 1035 1036config CPU_TX39XX 1037 bool "R39XX" 1038 depends on SYS_HAS_CPU_TX39XX 1039 select CPU_SUPPORTS_32BIT_KERNEL 1040 1041config CPU_VR41XX 1042 bool "R41xx" 1043 depends on SYS_HAS_CPU_VR41XX 1044 select CPU_SUPPORTS_32BIT_KERNEL 1045 select CPU_SUPPORTS_64BIT_KERNEL 1046 help 1047 The options selects support for the NEC VR4100 series of processors. 1048 Only choose this option if you have one of these processors as a 1049 kernel built with this option will not run on any other type of 1050 processor or vice versa. 1051 1052config CPU_R4300 1053 bool "R4300" 1054 depends on SYS_HAS_CPU_R4300 1055 select CPU_HAS_LLSC 1056 select CPU_SUPPORTS_32BIT_KERNEL 1057 select CPU_SUPPORTS_64BIT_KERNEL 1058 help 1059 MIPS Technologies R4300-series processors. 1060 1061config CPU_R4X00 1062 bool "R4x00" 1063 depends on SYS_HAS_CPU_R4X00 1064 select CPU_HAS_LLSC 1065 select CPU_SUPPORTS_32BIT_KERNEL 1066 select CPU_SUPPORTS_64BIT_KERNEL 1067 help 1068 MIPS Technologies R4000-series processors other than 4300, including 1069 the R4000, R4400, R4600, and 4700. 1070 1071config CPU_TX49XX 1072 bool "R49XX" 1073 depends on SYS_HAS_CPU_TX49XX 1074 select CPU_HAS_LLSC 1075 select CPU_HAS_PREFETCH 1076 select CPU_SUPPORTS_32BIT_KERNEL 1077 select CPU_SUPPORTS_64BIT_KERNEL 1078 1079config CPU_R5000 1080 bool "R5000" 1081 depends on SYS_HAS_CPU_R5000 1082 select CPU_HAS_LLSC 1083 select CPU_SUPPORTS_32BIT_KERNEL 1084 select CPU_SUPPORTS_64BIT_KERNEL 1085 help 1086 MIPS Technologies R5000-series processors other than the Nevada. 1087 1088config CPU_R5432 1089 bool "R5432" 1090 depends on SYS_HAS_CPU_R5432 1091 select CPU_HAS_LLSC 1092 select CPU_SUPPORTS_32BIT_KERNEL 1093 select CPU_SUPPORTS_64BIT_KERNEL 1094 1095config CPU_R6000 1096 bool "R6000" 1097 depends on EXPERIMENTAL 1098 select CPU_HAS_LLSC 1099 depends on SYS_HAS_CPU_R6000 1100 select CPU_SUPPORTS_32BIT_KERNEL 1101 help 1102 MIPS Technologies R6000 and R6000A series processors. Note these 1103 processors are extremely rare and the support for them is incomplete. 1104 1105config CPU_NEVADA 1106 bool "RM52xx" 1107 depends on SYS_HAS_CPU_NEVADA 1108 select CPU_HAS_LLSC 1109 select CPU_SUPPORTS_32BIT_KERNEL 1110 select CPU_SUPPORTS_64BIT_KERNEL 1111 help 1112 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1113 1114config CPU_R8000 1115 bool "R8000" 1116 depends on EXPERIMENTAL 1117 depends on SYS_HAS_CPU_R8000 1118 select CPU_HAS_LLSC 1119 select CPU_HAS_PREFETCH 1120 select CPU_SUPPORTS_64BIT_KERNEL 1121 help 1122 MIPS Technologies R8000 processors. Note these processors are 1123 uncommon and the support for them is incomplete. 1124 1125config CPU_R10000 1126 bool "R10000" 1127 depends on SYS_HAS_CPU_R10000 1128 select CPU_HAS_LLSC 1129 select CPU_HAS_PREFETCH 1130 select CPU_SUPPORTS_32BIT_KERNEL 1131 select CPU_SUPPORTS_64BIT_KERNEL 1132 select CPU_SUPPORTS_HIGHMEM 1133 help 1134 MIPS Technologies R10000-series processors. 1135 1136config CPU_RM7000 1137 bool "RM7000" 1138 depends on SYS_HAS_CPU_RM7000 1139 select CPU_HAS_LLSC 1140 select CPU_HAS_PREFETCH 1141 select CPU_SUPPORTS_32BIT_KERNEL 1142 select CPU_SUPPORTS_64BIT_KERNEL 1143 select CPU_SUPPORTS_HIGHMEM 1144 1145config CPU_RM9000 1146 bool "RM9000" 1147 depends on SYS_HAS_CPU_RM9000 1148 select CPU_HAS_LLSC 1149 select CPU_HAS_PREFETCH 1150 select CPU_SUPPORTS_32BIT_KERNEL 1151 select CPU_SUPPORTS_64BIT_KERNEL 1152 select CPU_SUPPORTS_HIGHMEM 1153 select WEAK_ORDERING 1154 1155config CPU_SB1 1156 bool "SB1" 1157 depends on SYS_HAS_CPU_SB1 1158 select CPU_HAS_LLSC 1159 select CPU_SUPPORTS_32BIT_KERNEL 1160 select CPU_SUPPORTS_64BIT_KERNEL 1161 select CPU_SUPPORTS_HIGHMEM 1162 select WEAK_ORDERING 1163 1164endchoice 1165 1166config SYS_HAS_CPU_LOONGSON2 1167 bool 1168 1169config SYS_HAS_CPU_MIPS32_R1 1170 bool 1171 1172config SYS_HAS_CPU_MIPS32_R2 1173 bool 1174 1175config SYS_HAS_CPU_MIPS64_R1 1176 bool 1177 1178config SYS_HAS_CPU_MIPS64_R2 1179 bool 1180 1181config SYS_HAS_CPU_R3000 1182 bool 1183 1184config SYS_HAS_CPU_TX39XX 1185 bool 1186 1187config SYS_HAS_CPU_VR41XX 1188 bool 1189 1190config SYS_HAS_CPU_R4300 1191 bool 1192 1193config SYS_HAS_CPU_R4X00 1194 bool 1195 1196config SYS_HAS_CPU_TX49XX 1197 bool 1198 1199config SYS_HAS_CPU_R5000 1200 bool 1201 1202config SYS_HAS_CPU_R5432 1203 bool 1204 1205config SYS_HAS_CPU_R6000 1206 bool 1207 1208config SYS_HAS_CPU_NEVADA 1209 bool 1210 1211config SYS_HAS_CPU_R8000 1212 bool 1213 1214config SYS_HAS_CPU_R10000 1215 bool 1216 1217config SYS_HAS_CPU_RM7000 1218 bool 1219 1220config SYS_HAS_CPU_RM9000 1221 bool 1222 1223config SYS_HAS_CPU_SB1 1224 bool 1225 1226# 1227# CPU may reorder R->R, R->W, W->R, W->W 1228# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1229# 1230config WEAK_ORDERING 1231 bool 1232 1233# 1234# CPU may reorder reads and writes beyond LL/SC 1235# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1236# 1237config WEAK_REORDERING_BEYOND_LLSC 1238 bool 1239endmenu 1240 1241# 1242# These two indicate any level of the MIPS32 and MIPS64 architecture 1243# 1244config CPU_MIPS32 1245 bool 1246 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1247 1248config CPU_MIPS64 1249 bool 1250 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1251 1252# 1253# These two indicate the revision of the architecture, either Release 1 or Release 2 1254# 1255config CPU_MIPSR1 1256 bool 1257 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1258 1259config CPU_MIPSR2 1260 bool 1261 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 1262 1263config SYS_SUPPORTS_32BIT_KERNEL 1264 bool 1265config SYS_SUPPORTS_64BIT_KERNEL 1266 bool 1267config CPU_SUPPORTS_32BIT_KERNEL 1268 bool 1269config CPU_SUPPORTS_64BIT_KERNEL 1270 bool 1271 1272# 1273# Set to y for ptrace access to watch registers. 1274# 1275config HARDWARE_WATCHPOINTS 1276 bool 1277 default y if CPU_MIPS32 || CPU_MIPS64 1278 1279menu "Kernel type" 1280 1281choice 1282 1283 prompt "Kernel code model" 1284 help 1285 You should only select this option if you have a workload that 1286 actually benefits from 64-bit processing or if your machine has 1287 large memory. You will only be presented a single option in this 1288 menu if your system does not support both 32-bit and 64-bit kernels. 1289 1290config 32BIT 1291 bool "32-bit kernel" 1292 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1293 select TRAD_SIGNALS 1294 help 1295 Select this option if you want to build a 32-bit kernel. 1296config 64BIT 1297 bool "64-bit kernel" 1298 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1299 help 1300 Select this option if you want to build a 64-bit kernel. 1301 1302endchoice 1303 1304choice 1305 prompt "Kernel page size" 1306 default PAGE_SIZE_4KB 1307 1308config PAGE_SIZE_4KB 1309 bool "4kB" 1310 help 1311 This option select the standard 4kB Linux page size. On some 1312 R3000-family processors this is the only available page size. Using 1313 4kB page size will minimize memory consumption and is therefore 1314 recommended for low memory systems. 1315 1316config PAGE_SIZE_8KB 1317 bool "8kB" 1318 depends on EXPERIMENTAL && CPU_R8000 1319 help 1320 Using 8kB page size will result in higher performance kernel at 1321 the price of higher memory consumption. This option is available 1322 only on the R8000 processor. Not that at the time of this writing 1323 this option is still high experimental; there are also issues with 1324 compatibility of user applications. 1325 1326config PAGE_SIZE_16KB 1327 bool "16kB" 1328 depends on !CPU_R3000 && !CPU_TX39XX 1329 help 1330 Using 16kB page size will result in higher performance kernel at 1331 the price of higher memory consumption. This option is available on 1332 all non-R3000 family processors. Note that you will need a suitable 1333 Linux distribution to support this. 1334 1335config PAGE_SIZE_64KB 1336 bool "64kB" 1337 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1338 help 1339 Using 64kB page size will result in higher performance kernel at 1340 the price of higher memory consumption. This option is available on 1341 all non-R3000 family processor. Not that at the time of this 1342 writing this option is still high experimental. 1343 1344endchoice 1345 1346config BOARD_SCACHE 1347 bool 1348 1349config IP22_CPU_SCACHE 1350 bool 1351 select BOARD_SCACHE 1352 1353# 1354# Support for a MIPS32 / MIPS64 style S-caches 1355# 1356config MIPS_CPU_SCACHE 1357 bool 1358 select BOARD_SCACHE 1359 1360config R5000_CPU_SCACHE 1361 bool 1362 select BOARD_SCACHE 1363 1364config RM7000_CPU_SCACHE 1365 bool 1366 select BOARD_SCACHE 1367 1368config SIBYTE_DMA_PAGEOPS 1369 bool "Use DMA to clear/copy pages" 1370 depends on CPU_SB1 1371 help 1372 Instead of using the CPU to zero and copy pages, use a Data Mover 1373 channel. These DMA channels are otherwise unused by the standard 1374 SiByte Linux port. Seems to give a small performance benefit. 1375 1376config CPU_HAS_PREFETCH 1377 bool 1378 1379choice 1380 prompt "MIPS MT options" 1381 1382config MIPS_MT_DISABLED 1383 bool "Disable multithreading support." 1384 help 1385 Use this option if your workload can't take advantage of 1386 MIPS hardware multithreading support. On systems that don't have 1387 the option of an MT-enabled processor this option will be the only 1388 option in this menu. 1389 1390config MIPS_MT_SMP 1391 bool "Use 1 TC on each available VPE for SMP" 1392 depends on SYS_SUPPORTS_MULTITHREADING 1393 select CPU_MIPSR2_IRQ_VI 1394 select CPU_MIPSR2_IRQ_EI 1395 select MIPS_MT 1396 select NR_CPUS_DEFAULT_2 1397 select SMP 1398 select SYS_SUPPORTS_SCHED_SMT if SMP 1399 select SYS_SUPPORTS_SMP 1400 select SMP_UP 1401 help 1402 This is a kernel model which is also known a VSMP or lately 1403 has been marketesed into SMVP. 1404 1405config MIPS_MT_SMTC 1406 bool "SMTC: Use all TCs on all VPEs for SMP" 1407 depends on CPU_MIPS32_R2 1408 #depends on CPU_MIPS64_R2 # once there is hardware ... 1409 depends on SYS_SUPPORTS_MULTITHREADING 1410 select CPU_MIPSR2_IRQ_VI 1411 select CPU_MIPSR2_IRQ_EI 1412 select MIPS_MT 1413 select NR_CPUS_DEFAULT_8 1414 select SMP 1415 select SYS_SUPPORTS_SMP 1416 select SMP_UP 1417 help 1418 This is a kernel model which is known a SMTC or lately has been 1419 marketesed into SMVP. 1420 1421endchoice 1422 1423config MIPS_MT 1424 bool 1425 1426config SCHED_SMT 1427 bool "SMT (multithreading) scheduler support" 1428 depends on SYS_SUPPORTS_SCHED_SMT 1429 default n 1430 help 1431 SMT scheduler support improves the CPU scheduler's decision making 1432 when dealing with MIPS MT enabled cores at a cost of slightly 1433 increased overhead in some places. If unsure say N here. 1434 1435config SYS_SUPPORTS_SCHED_SMT 1436 bool 1437 1438 1439config SYS_SUPPORTS_MULTITHREADING 1440 bool 1441 1442config MIPS_MT_FPAFF 1443 bool "Dynamic FPU affinity for FP-intensive threads" 1444 default y 1445 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1446 1447config MIPS_VPE_LOADER 1448 bool "VPE loader support." 1449 depends on SYS_SUPPORTS_MULTITHREADING 1450 select CPU_MIPSR2_IRQ_VI 1451 select CPU_MIPSR2_IRQ_EI 1452 select MIPS_MT 1453 help 1454 Includes a loader for loading an elf relocatable object 1455 onto another VPE and running it. 1456 1457config MIPS_MT_SMTC_IM_BACKSTOP 1458 bool "Use per-TC register bits as backstop for inhibited IM bits" 1459 depends on MIPS_MT_SMTC 1460 default n 1461 help 1462 To support multiple TC microthreads acting as "CPUs" within 1463 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1464 during interrupt handling. To support legacy drivers and interrupt 1465 controller management code, SMTC has a "backstop" to track and 1466 if necessary restore the interrupt mask. This has some performance 1467 impact on interrupt service overhead. 1468 1469config MIPS_MT_SMTC_IRQAFF 1470 bool "Support IRQ affinity API" 1471 depends on MIPS_MT_SMTC 1472 default n 1473 help 1474 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1475 for SMTC Linux kernel. Requires platform support, of which 1476 an example can be found in the MIPS kernel i8259 and Malta 1477 platform code. Adds some overhead to interrupt dispatch, and 1478 should be used only if you know what you are doing. 1479 1480config MIPS_VPE_LOADER_TOM 1481 bool "Load VPE program into memory hidden from linux" 1482 depends on MIPS_VPE_LOADER 1483 default y 1484 help 1485 The loader can use memory that is present but has been hidden from 1486 Linux using the kernel command line option "mem=xxMB". It's up to 1487 you to ensure the amount you put in the option and the space your 1488 program requires is less or equal to the amount physically present. 1489 1490# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1491config MIPS_VPE_APSP_API 1492 bool "Enable support for AP/SP API (RTLX)" 1493 depends on MIPS_VPE_LOADER 1494 help 1495 1496config MIPS_APSP_KSPD 1497 bool "Enable KSPD" 1498 depends on MIPS_VPE_APSP_API 1499 default y 1500 help 1501 KSPD is a kernel daemon that accepts syscall requests from the SP 1502 side, actions them and returns the results. It also handles the 1503 "exit" syscall notifying other kernel modules the SP program is 1504 exiting. You probably want to say yes here. 1505 1506config MIPS_CMP 1507 bool "MIPS CMP framework support" 1508 depends on SYS_SUPPORTS_MIPS_CMP 1509 select SYNC_R4K if BROKEN 1510 select SYS_SUPPORTS_SMP 1511 select SYS_SUPPORTS_SCHED_SMT if SMP 1512 select WEAK_ORDERING 1513 default n 1514 help 1515 This is a placeholder option for the GCMP work. It will need to 1516 be handled differently... 1517 1518config SB1_PASS_1_WORKAROUNDS 1519 bool 1520 depends on CPU_SB1_PASS_1 1521 default y 1522 1523config SB1_PASS_2_WORKAROUNDS 1524 bool 1525 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1526 default y 1527 1528config SB1_PASS_2_1_WORKAROUNDS 1529 bool 1530 depends on CPU_SB1 && CPU_SB1_PASS_2 1531 default y 1532 1533config 64BIT_PHYS_ADDR 1534 bool 1535 1536config CPU_HAS_LLSC 1537 bool 1538 1539config CPU_HAS_SMARTMIPS 1540 depends on SYS_SUPPORTS_SMARTMIPS 1541 bool "Support for the SmartMIPS ASE" 1542 help 1543 SmartMIPS is a extension of the MIPS32 architecture aimed at 1544 increased security at both hardware and software level for 1545 smartcards. Enabling this option will allow proper use of the 1546 SmartMIPS instructions by Linux applications. However a kernel with 1547 this option will not work on a MIPS core without SmartMIPS core. If 1548 you don't know you probably don't have SmartMIPS and should say N 1549 here. 1550 1551config CPU_HAS_WB 1552 bool 1553 1554# 1555# Vectored interrupt mode is an R2 feature 1556# 1557config CPU_MIPSR2_IRQ_VI 1558 bool 1559 1560# 1561# Extended interrupt mode is an R2 feature 1562# 1563config CPU_MIPSR2_IRQ_EI 1564 bool 1565 1566config CPU_HAS_SYNC 1567 bool 1568 depends on !CPU_R3000 1569 default y 1570 1571config GENERIC_CLOCKEVENTS_BROADCAST 1572 bool 1573 1574# 1575# CPU non-features 1576# 1577config CPU_DADDI_WORKAROUNDS 1578 bool 1579 1580config CPU_R4000_WORKAROUNDS 1581 bool 1582 select CPU_R4400_WORKAROUNDS 1583 1584config CPU_R4400_WORKAROUNDS 1585 bool 1586 1587# 1588# Use the generic interrupt handling code in kernel/irq/: 1589# 1590config GENERIC_HARDIRQS 1591 bool 1592 default y 1593 1594config GENERIC_IRQ_PROBE 1595 bool 1596 default y 1597 1598config IRQ_PER_CPU 1599 bool 1600 1601# 1602# - Highmem only makes sense for the 32-bit kernel. 1603# - The current highmem code will only work properly on physically indexed 1604# caches such as R3000, SB1, R7000 or those that look like they're virtually 1605# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1606# moment we protect the user and offer the highmem option only on machines 1607# where it's known to be safe. This will not offer highmem on a few systems 1608# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1609# indexed CPUs but we're playing safe. 1610# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 1611# know they might have memory configurations that could make use of highmem 1612# support. 1613# 1614config HIGHMEM 1615 bool "High Memory Support" 1616 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 1617 1618config CPU_SUPPORTS_HIGHMEM 1619 bool 1620 1621config SYS_SUPPORTS_HIGHMEM 1622 bool 1623 1624config SYS_SUPPORTS_SMARTMIPS 1625 bool 1626 1627config ARCH_FLATMEM_ENABLE 1628 def_bool y 1629 depends on !NUMA 1630 1631config ARCH_DISCONTIGMEM_ENABLE 1632 bool 1633 default y if SGI_IP27 1634 help 1635 Say Y to support efficient handling of discontiguous physical memory, 1636 for architectures which are either NUMA (Non-Uniform Memory Access) 1637 or have huge holes in the physical address space for other reasons. 1638 See <file:Documentation/vm/numa> for more. 1639 1640config ARCH_POPULATES_NODE_MAP 1641 def_bool y 1642 1643config ARCH_SPARSEMEM_ENABLE 1644 bool 1645 select SPARSEMEM_STATIC 1646 1647config NUMA 1648 bool "NUMA Support" 1649 depends on SYS_SUPPORTS_NUMA 1650 help 1651 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 1652 Access). This option improves performance on systems with more 1653 than two nodes; on two node systems it is generally better to 1654 leave it disabled; on single node systems disable this option 1655 disabled. 1656 1657config SYS_SUPPORTS_NUMA 1658 bool 1659 1660config NODES_SHIFT 1661 int 1662 default "6" 1663 depends on NEED_MULTIPLE_NODES 1664 1665source "mm/Kconfig" 1666 1667config SMP 1668 bool "Multi-Processing support" 1669 depends on SYS_SUPPORTS_SMP 1670 select IRQ_PER_CPU 1671 select USE_GENERIC_SMP_HELPERS 1672 help 1673 This enables support for systems with more than one CPU. If you have 1674 a system with only one CPU, like most personal computers, say N. If 1675 you have a system with more than one CPU, say Y. 1676 1677 If you say N here, the kernel will run on single and multiprocessor 1678 machines, but will use only one CPU of a multiprocessor machine. If 1679 you say Y here, the kernel will run on many, but not all, 1680 singleprocessor machines. On a singleprocessor machine, the kernel 1681 will run faster if you say N here. 1682 1683 People using multiprocessor machines who say Y here should also say 1684 Y to "Enhanced Real Time Clock Support", below. 1685 1686 See also the SMP-HOWTO available at 1687 <http://www.tldp.org/docs.html#howto>. 1688 1689 If you don't know what to do here, say N. 1690 1691config SMP_UP 1692 bool 1693 1694config SYS_SUPPORTS_MIPS_CMP 1695 bool 1696 1697config SYS_SUPPORTS_SMP 1698 bool 1699 1700config NR_CPUS_DEFAULT_1 1701 bool 1702 1703config NR_CPUS_DEFAULT_2 1704 bool 1705 1706config NR_CPUS_DEFAULT_4 1707 bool 1708 1709config NR_CPUS_DEFAULT_8 1710 bool 1711 1712config NR_CPUS_DEFAULT_16 1713 bool 1714 1715config NR_CPUS_DEFAULT_32 1716 bool 1717 1718config NR_CPUS_DEFAULT_64 1719 bool 1720 1721config NR_CPUS 1722 int "Maximum number of CPUs (2-64)" 1723 range 1 64 if NR_CPUS_DEFAULT_1 1724 depends on SMP 1725 default "1" if NR_CPUS_DEFAULT_1 1726 default "2" if NR_CPUS_DEFAULT_2 1727 default "4" if NR_CPUS_DEFAULT_4 1728 default "8" if NR_CPUS_DEFAULT_8 1729 default "16" if NR_CPUS_DEFAULT_16 1730 default "32" if NR_CPUS_DEFAULT_32 1731 default "64" if NR_CPUS_DEFAULT_64 1732 help 1733 This allows you to specify the maximum number of CPUs which this 1734 kernel will support. The maximum supported value is 32 for 32-bit 1735 kernel and 64 for 64-bit kernels; the minimum value which makes 1736 sense is 1 for Qemu (useful only for kernel debugging purposes) 1737 and 2 for all others. 1738 1739 This is purely to save memory - each supported CPU adds 1740 approximately eight kilobytes to the kernel image. For best 1741 performance should round up your number of processors to the next 1742 power of two. 1743 1744source "kernel/time/Kconfig" 1745 1746# 1747# Timer Interrupt Frequency Configuration 1748# 1749 1750choice 1751 prompt "Timer frequency" 1752 default HZ_250 1753 help 1754 Allows the configuration of the timer frequency. 1755 1756 config HZ_48 1757 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 1758 1759 config HZ_100 1760 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 1761 1762 config HZ_128 1763 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 1764 1765 config HZ_250 1766 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 1767 1768 config HZ_256 1769 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 1770 1771 config HZ_1000 1772 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 1773 1774 config HZ_1024 1775 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 1776 1777endchoice 1778 1779config SYS_SUPPORTS_48HZ 1780 bool 1781 1782config SYS_SUPPORTS_100HZ 1783 bool 1784 1785config SYS_SUPPORTS_128HZ 1786 bool 1787 1788config SYS_SUPPORTS_250HZ 1789 bool 1790 1791config SYS_SUPPORTS_256HZ 1792 bool 1793 1794config SYS_SUPPORTS_1000HZ 1795 bool 1796 1797config SYS_SUPPORTS_1024HZ 1798 bool 1799 1800config SYS_SUPPORTS_ARBIT_HZ 1801 bool 1802 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 1803 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 1804 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 1805 !SYS_SUPPORTS_1024HZ 1806 1807config HZ 1808 int 1809 default 48 if HZ_48 1810 default 100 if HZ_100 1811 default 128 if HZ_128 1812 default 250 if HZ_250 1813 default 256 if HZ_256 1814 default 1000 if HZ_1000 1815 default 1024 if HZ_1024 1816 1817source "kernel/Kconfig.preempt" 1818 1819config MIPS_INSANE_LARGE 1820 bool "Support for large 64-bit configurations" 1821 depends on CPU_R10000 && 64BIT 1822 help 1823 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 1824 previous 64-bit processors which only supported 40 bit / 1TB. If you 1825 need processes of more than 1TB virtual address space, say Y here. 1826 This will result in additional memory usage, so it is not 1827 recommended for normal users. 1828 1829config KEXEC 1830 bool "Kexec system call (EXPERIMENTAL)" 1831 depends on EXPERIMENTAL 1832 help 1833 kexec is a system call that implements the ability to shutdown your 1834 current kernel, and to start another kernel. It is like a reboot 1835 but it is independent of the system firmware. And like a reboot 1836 you can start any kernel with it, not just Linux. 1837 1838 The name comes from the similarity to the exec system call. 1839 1840 It is an ongoing process to be certain the hardware in a machine 1841 is properly shutdown, so do not be surprised if this code does not 1842 initially work for you. It may help to enable device hotplugging 1843 support. As of this writing the exact hardware interface is 1844 strongly in flux, so no good recommendation can be made. 1845 1846config SECCOMP 1847 bool "Enable seccomp to safely compute untrusted bytecode" 1848 depends on PROC_FS 1849 default y 1850 help 1851 This kernel feature is useful for number crunching applications 1852 that may need to compute untrusted bytecode during their 1853 execution. By using pipes or other transports made available to 1854 the process as file descriptors supporting the read/write 1855 syscalls, it's possible to isolate those applications in 1856 their own address space using seccomp. Once seccomp is 1857 enabled via /proc/<pid>/seccomp, it cannot be disabled 1858 and the task is only allowed to execute a few safe syscalls 1859 defined by each seccomp mode. 1860 1861 If unsure, say Y. Only embedded should say N here. 1862 1863endmenu 1864 1865config RWSEM_GENERIC_SPINLOCK 1866 bool 1867 default y 1868 1869config LOCKDEP_SUPPORT 1870 bool 1871 default y 1872 1873config STACKTRACE_SUPPORT 1874 bool 1875 default y 1876 1877source "init/Kconfig" 1878 1879config PROBE_INITRD_HEADER 1880 bool "Probe initrd header created by addinitrd" 1881 depends on BLK_DEV_INITRD 1882 help 1883 Probe initrd header at the last page of kernel image. 1884 Say Y here if you are using arch/mips/boot/addinitrd.c to 1885 add initrd or initramfs image to the kernel image. 1886 Otherwise, say N. 1887 1888menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 1889 1890config HW_HAS_EISA 1891 bool 1892config HW_HAS_PCI 1893 bool 1894 1895config PCI 1896 bool "Support for PCI controller" 1897 depends on HW_HAS_PCI 1898 select PCI_DOMAINS 1899 help 1900 Find out whether you have a PCI motherboard. PCI is the name of a 1901 bus system, i.e. the way the CPU talks to the other stuff inside 1902 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 1903 say Y, otherwise N. 1904 1905config PCI_DOMAINS 1906 bool 1907 1908source "drivers/pci/Kconfig" 1909 1910# 1911# ISA support is now enabled via select. Too many systems still have the one 1912# or other ISA chip on the board that users don't know about so don't expect 1913# users to choose the right thing ... 1914# 1915config ISA 1916 bool 1917 1918config EISA 1919 bool "EISA support" 1920 depends on HW_HAS_EISA 1921 select ISA 1922 select GENERIC_ISA_DMA 1923 ---help--- 1924 The Extended Industry Standard Architecture (EISA) bus was 1925 developed as an open alternative to the IBM MicroChannel bus. 1926 1927 The EISA bus provided some of the features of the IBM MicroChannel 1928 bus while maintaining backward compatibility with cards made for 1929 the older ISA bus. The EISA bus saw limited use between 1988 and 1930 1995 when it was made obsolete by the PCI bus. 1931 1932 Say Y here if you are building a kernel for an EISA-based machine. 1933 1934 Otherwise, say N. 1935 1936source "drivers/eisa/Kconfig" 1937 1938config TC 1939 bool "TURBOchannel support" 1940 depends on MACH_DECSTATION 1941 help 1942 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 1943 processors. Documentation on writing device drivers for TurboChannel 1944 is available at: 1945 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>. 1946 1947#config ACCESSBUS 1948# bool "Access.Bus support" 1949# depends on TC 1950 1951config MMU 1952 bool 1953 default y 1954 1955config I8253 1956 bool 1957 1958config ZONE_DMA32 1959 bool 1960 1961source "drivers/pcmcia/Kconfig" 1962 1963source "drivers/pci/hotplug/Kconfig" 1964 1965endmenu 1966 1967menu "Executable file formats" 1968 1969source "fs/Kconfig.binfmt" 1970 1971config TRAD_SIGNALS 1972 bool 1973 1974config MIPS32_COMPAT 1975 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 1976 depends on 64BIT 1977 help 1978 Select this option if you want Linux/MIPS 32-bit binary 1979 compatibility. Since all software available for Linux/MIPS is 1980 currently 32-bit you should say Y here. 1981 1982config COMPAT 1983 bool 1984 depends on MIPS32_COMPAT 1985 default y 1986 1987config SYSVIPC_COMPAT 1988 bool 1989 depends on COMPAT && SYSVIPC 1990 default y 1991 1992config MIPS32_O32 1993 bool "Kernel support for o32 binaries" 1994 depends on MIPS32_COMPAT 1995 help 1996 Select this option if you want to run o32 binaries. These are pure 1997 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 1998 existing binaries are in this format. 1999 2000 If unsure, say Y. 2001 2002config MIPS32_N32 2003 bool "Kernel support for n32 binaries" 2004 depends on MIPS32_COMPAT 2005 help 2006 Select this option if you want to run n32 binaries. These are 2007 64-bit binaries using 32-bit quantities for addressing and certain 2008 data that would normally be 64-bit. They are used in special 2009 cases. 2010 2011 If unsure, say N. 2012 2013config BINFMT_ELF32 2014 bool 2015 default y if MIPS32_O32 || MIPS32_N32 2016 2017endmenu 2018 2019menu "Power management options" 2020 2021config ARCH_SUSPEND_POSSIBLE 2022 def_bool y 2023 depends on !SMP 2024 2025source "kernel/power/Kconfig" 2026 2027endmenu 2028 2029source "net/Kconfig" 2030 2031source "drivers/Kconfig" 2032 2033source "fs/Kconfig" 2034 2035source "arch/mips/Kconfig.debug" 2036 2037source "security/Kconfig" 2038 2039source "crypto/Kconfig" 2040 2041source "lib/Kconfig" 2042