1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_ARCH_KGDB 8 select HAVE_FUNCTION_TRACER 9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 10 select HAVE_DYNAMIC_FTRACE 11 select HAVE_FTRACE_MCOUNT_RECORD 12 select HAVE_FUNCTION_GRAPH_TRACER 13 select HAVE_KPROBES 14 select HAVE_KRETPROBES 15 select RTC_LIB if !MACH_LOONGSON 16 17mainmenu "Linux/MIPS Kernel Configuration" 18 19menu "Machine selection" 20 21config ZONE_DMA 22 bool 23 24choice 25 prompt "System type" 26 default SGI_IP22 27 28config MIPS_ALCHEMY 29 bool "Alchemy processor based machines" 30 select 64BIT_PHYS_ADDR 31 select CEVT_R4K_LIB 32 select CSRC_R4K_LIB 33 select IRQ_CPU 34 select SYS_HAS_CPU_MIPS32_R1 35 select SYS_SUPPORTS_32BIT_KERNEL 36 select SYS_SUPPORTS_APM_EMULATION 37 select GENERIC_GPIO 38 select ARCH_WANT_OPTIONAL_GPIOLIB 39 select SYS_SUPPORTS_ZBOOT 40 41config AR7 42 bool "Texas Instruments AR7" 43 select BOOT_ELF32 44 select DMA_NONCOHERENT 45 select CEVT_R4K 46 select CSRC_R4K 47 select IRQ_CPU 48 select NO_EXCEPT_FILL 49 select SWAP_IO_SPACE 50 select SYS_HAS_CPU_MIPS32_R1 51 select SYS_HAS_EARLY_PRINTK 52 select SYS_SUPPORTS_32BIT_KERNEL 53 select SYS_SUPPORTS_LITTLE_ENDIAN 54 select SYS_SUPPORTS_ZBOOT_UART16550 55 select ARCH_REQUIRE_GPIOLIB 56 select GCD 57 select VLYNQ 58 help 59 Support for the Texas Instruments AR7 System-on-a-Chip 60 family: TNETD7100, 7200 and 7300. 61 62config BCM47XX 63 bool "Broadcom BCM47XX based boards" 64 select CEVT_R4K 65 select CSRC_R4K 66 select DMA_NONCOHERENT 67 select HW_HAS_PCI 68 select IRQ_CPU 69 select SYS_HAS_CPU_MIPS32_R1 70 select SYS_SUPPORTS_32BIT_KERNEL 71 select SYS_SUPPORTS_LITTLE_ENDIAN 72 select SSB 73 select SSB_DRIVER_MIPS 74 select SSB_DRIVER_EXTIF 75 select SSB_EMBEDDED 76 select SSB_B43_PCI_BRIDGE if PCI 77 select SSB_PCICORE_HOSTMODE if PCI 78 select GENERIC_GPIO 79 select SYS_HAS_EARLY_PRINTK 80 select CFE 81 help 82 Support for BCM47XX based boards 83 84config BCM63XX 85 bool "Broadcom BCM63XX based boards" 86 select CEVT_R4K 87 select CSRC_R4K 88 select DMA_NONCOHERENT 89 select IRQ_CPU 90 select SYS_HAS_CPU_MIPS32_R1 91 select SYS_SUPPORTS_32BIT_KERNEL 92 select SYS_SUPPORTS_BIG_ENDIAN 93 select SYS_HAS_EARLY_PRINTK 94 select SWAP_IO_SPACE 95 select ARCH_REQUIRE_GPIOLIB 96 help 97 Support for BCM63XX based boards 98 99config MIPS_COBALT 100 bool "Cobalt Server" 101 select CEVT_R4K 102 select CSRC_R4K 103 select CEVT_GT641XX 104 select DMA_NONCOHERENT 105 select HW_HAS_PCI 106 select I8253 107 select I8259 108 select IRQ_CPU 109 select IRQ_GT641XX 110 select PCI_GT64XXX_PCI0 111 select PCI 112 select SYS_HAS_CPU_NEVADA 113 select SYS_HAS_EARLY_PRINTK 114 select SYS_SUPPORTS_32BIT_KERNEL 115 select SYS_SUPPORTS_64BIT_KERNEL 116 select SYS_SUPPORTS_LITTLE_ENDIAN 117 118config MACH_DECSTATION 119 bool "DECstations" 120 select BOOT_ELF32 121 select CEVT_DS1287 122 select CEVT_R4K 123 select CSRC_IOASIC 124 select CSRC_R4K 125 select CPU_DADDI_WORKAROUNDS if 64BIT 126 select CPU_R4000_WORKAROUNDS if 64BIT 127 select CPU_R4400_WORKAROUNDS if 64BIT 128 select DMA_NONCOHERENT 129 select NO_IOPORT 130 select IRQ_CPU 131 select SYS_HAS_CPU_R3000 132 select SYS_HAS_CPU_R4X00 133 select SYS_SUPPORTS_32BIT_KERNEL 134 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 135 select SYS_SUPPORTS_LITTLE_ENDIAN 136 select SYS_SUPPORTS_128HZ 137 select SYS_SUPPORTS_256HZ 138 select SYS_SUPPORTS_1024HZ 139 help 140 This enables support for DEC's MIPS based workstations. For details 141 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 142 DECstation porting pages on <http://decstation.unix-ag.org/>. 143 144 If you have one of the following DECstation Models you definitely 145 want to choose R4xx0 for the CPU Type: 146 147 DECstation 5000/50 148 DECstation 5000/150 149 DECstation 5000/260 150 DECsystem 5900/260 151 152 otherwise choose R3000. 153 154config MACH_JAZZ 155 bool "Jazz family of machines" 156 select ARC 157 select ARC32 158 select ARCH_MAY_HAVE_PC_FDC 159 select CEVT_R4K 160 select CSRC_R4K 161 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 162 select GENERIC_ISA_DMA 163 select IRQ_CPU 164 select I8253 165 select I8259 166 select ISA 167 select SYS_HAS_CPU_R4X00 168 select SYS_SUPPORTS_32BIT_KERNEL 169 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 170 select SYS_SUPPORTS_100HZ 171 help 172 This a family of machines based on the MIPS R4030 chipset which was 173 used by several vendors to build RISC/os and Windows NT workstations. 174 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 175 Olivetti M700-10 workstations. 176 177config MACH_JZ4740 178 bool "Ingenic JZ4740 based machines" 179 select SYS_HAS_CPU_MIPS32_R1 180 select SYS_SUPPORTS_32BIT_KERNEL 181 select SYS_SUPPORTS_LITTLE_ENDIAN 182 select DMA_NONCOHERENT 183 select IRQ_CPU 184 select GENERIC_GPIO 185 select ARCH_REQUIRE_GPIOLIB 186 select SYS_HAS_EARLY_PRINTK 187 select HAVE_PWM 188 189config LASAT 190 bool "LASAT Networks platforms" 191 select CEVT_R4K 192 select CSRC_R4K 193 select DMA_NONCOHERENT 194 select SYS_HAS_EARLY_PRINTK 195 select HW_HAS_PCI 196 select IRQ_CPU 197 select PCI_GT64XXX_PCI0 198 select MIPS_NILE4 199 select R5000_CPU_SCACHE 200 select SYS_HAS_CPU_R5000 201 select SYS_SUPPORTS_32BIT_KERNEL 202 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 203 select SYS_SUPPORTS_LITTLE_ENDIAN 204 205config MACH_LOONGSON 206 bool "Loongson family of machines" 207 select SYS_SUPPORTS_ZBOOT 208 help 209 This enables the support of Loongson family of machines. 210 211 Loongson is a family of general-purpose MIPS-compatible CPUs. 212 developed at Institute of Computing Technology (ICT), 213 Chinese Academy of Sciences (CAS) in the People's Republic 214 of China. The chief architect is Professor Weiwu Hu. 215 216config MIPS_MALTA 217 bool "MIPS Malta board" 218 select ARCH_MAY_HAVE_PC_FDC 219 select BOOT_ELF32 220 select BOOT_RAW 221 select CEVT_R4K 222 select CSRC_R4K 223 select DMA_NONCOHERENT 224 select GENERIC_ISA_DMA 225 select IRQ_CPU 226 select IRQ_GIC 227 select HW_HAS_PCI 228 select I8253 229 select I8259 230 select MIPS_BOARDS_GEN 231 select MIPS_BONITO64 232 select MIPS_CPU_SCACHE 233 select PCI_GT64XXX_PCI0 234 select MIPS_MSC 235 select SWAP_IO_SPACE 236 select SYS_HAS_CPU_MIPS32_R1 237 select SYS_HAS_CPU_MIPS32_R2 238 select SYS_HAS_CPU_MIPS64_R1 239 select SYS_HAS_CPU_NEVADA 240 select SYS_HAS_CPU_RM7000 241 select SYS_HAS_EARLY_PRINTK 242 select SYS_SUPPORTS_32BIT_KERNEL 243 select SYS_SUPPORTS_64BIT_KERNEL 244 select SYS_SUPPORTS_BIG_ENDIAN 245 select SYS_SUPPORTS_LITTLE_ENDIAN 246 select SYS_SUPPORTS_MIPS_CMP 247 select SYS_SUPPORTS_MULTITHREADING 248 select SYS_SUPPORTS_SMARTMIPS 249 select SYS_SUPPORTS_ZBOOT 250 help 251 This enables support for the MIPS Technologies Malta evaluation 252 board. 253 254config MIPS_SIM 255 bool 'MIPS simulator (MIPSsim)' 256 select CEVT_R4K 257 select CSRC_R4K 258 select DMA_NONCOHERENT 259 select SYS_HAS_EARLY_PRINTK 260 select IRQ_CPU 261 select BOOT_RAW 262 select SYS_HAS_CPU_MIPS32_R1 263 select SYS_HAS_CPU_MIPS32_R2 264 select SYS_HAS_EARLY_PRINTK 265 select SYS_SUPPORTS_32BIT_KERNEL 266 select SYS_SUPPORTS_BIG_ENDIAN 267 select SYS_SUPPORTS_MULTITHREADING 268 select SYS_SUPPORTS_LITTLE_ENDIAN 269 help 270 This option enables support for MIPS Technologies MIPSsim software 271 emulator. 272 273config NEC_MARKEINS 274 bool "NEC EMMA2RH Mark-eins board" 275 select SOC_EMMA2RH 276 select HW_HAS_PCI 277 help 278 This enables support for the NEC Electronics Mark-eins boards. 279 280config MACH_VR41XX 281 bool "NEC VR4100 series based machines" 282 select CEVT_R4K 283 select CSRC_R4K 284 select SYS_HAS_CPU_VR41XX 285 select ARCH_REQUIRE_GPIOLIB 286 287config NXP_STB220 288 bool "NXP STB220 board" 289 select SOC_PNX833X 290 help 291 Support for NXP Semiconductors STB220 Development Board. 292 293config NXP_STB225 294 bool "NXP 225 board" 295 select SOC_PNX833X 296 select SOC_PNX8335 297 help 298 Support for NXP Semiconductors STB225 Development Board. 299 300config PNX8550_JBS 301 bool "NXP PNX8550 based JBS board" 302 select PNX8550 303 select SYS_SUPPORTS_LITTLE_ENDIAN 304 305config PNX8550_STB810 306 bool "NXP PNX8550 based STB810 board" 307 select PNX8550 308 select SYS_SUPPORTS_LITTLE_ENDIAN 309 310config PMC_MSP 311 bool "PMC-Sierra MSP chipsets" 312 depends on EXPERIMENTAL 313 select DMA_NONCOHERENT 314 select SWAP_IO_SPACE 315 select NO_EXCEPT_FILL 316 select BOOT_RAW 317 select SYS_HAS_CPU_MIPS32_R1 318 select SYS_HAS_CPU_MIPS32_R2 319 select SYS_SUPPORTS_32BIT_KERNEL 320 select SYS_SUPPORTS_BIG_ENDIAN 321 select IRQ_CPU 322 select SERIAL_8250 323 select SERIAL_8250_CONSOLE 324 help 325 This adds support for the PMC-Sierra family of Multi-Service 326 Processor System-On-A-Chips. These parts include a number 327 of integrated peripherals, interfaces and DSPs in addition to 328 a variety of MIPS cores. 329 330config PMC_YOSEMITE 331 bool "PMC-Sierra Yosemite eval board" 332 select CEVT_R4K 333 select CSRC_R4K 334 select DMA_COHERENT 335 select HW_HAS_PCI 336 select IRQ_CPU 337 select IRQ_CPU_RM7K 338 select IRQ_CPU_RM9K 339 select SWAP_IO_SPACE 340 select SYS_HAS_CPU_RM9000 341 select SYS_HAS_EARLY_PRINTK 342 select SYS_SUPPORTS_32BIT_KERNEL 343 select SYS_SUPPORTS_64BIT_KERNEL 344 select SYS_SUPPORTS_BIG_ENDIAN 345 select SYS_SUPPORTS_HIGHMEM 346 select SYS_SUPPORTS_SMP 347 help 348 Yosemite is an evaluation board for the RM9000x2 processor 349 manufactured by PMC-Sierra. 350 351config POWERTV 352 bool "Cisco PowerTV" 353 select BOOT_ELF32 354 select CEVT_R4K 355 select CPU_MIPSR2_IRQ_VI 356 select CPU_MIPSR2_IRQ_EI 357 select CSRC_POWERTV 358 select DMA_NONCOHERENT 359 select HW_HAS_PCI 360 select SYS_HAS_EARLY_PRINTK 361 select SYS_HAS_CPU_MIPS32_R2 362 select SYS_SUPPORTS_32BIT_KERNEL 363 select SYS_SUPPORTS_BIG_ENDIAN 364 select SYS_SUPPORTS_HIGHMEM 365 select USB_OHCI_LITTLE_ENDIAN 366 help 367 This enables support for the Cisco PowerTV Platform. 368 369config SGI_IP22 370 bool "SGI IP22 (Indy/Indigo2)" 371 select ARC 372 select ARC32 373 select BOOT_ELF32 374 select CEVT_R4K 375 select CSRC_R4K 376 select DEFAULT_SGI_PARTITION 377 select DMA_NONCOHERENT 378 select HW_HAS_EISA 379 select I8253 380 select I8259 381 select IP22_CPU_SCACHE 382 select IRQ_CPU 383 select GENERIC_ISA_DMA_SUPPORT_BROKEN 384 select SGI_HAS_I8042 385 select SGI_HAS_INDYDOG 386 select SGI_HAS_HAL2 387 select SGI_HAS_SEEQ 388 select SGI_HAS_WD93 389 select SGI_HAS_ZILOG 390 select SWAP_IO_SPACE 391 select SYS_HAS_CPU_R4X00 392 select SYS_HAS_CPU_R5000 393 # 394 # Disable EARLY_PRINTK for now since it leads to overwritten prom 395 # memory during early boot on some machines. 396 # 397 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 398 # for a more details discussion 399 # 400 # select SYS_HAS_EARLY_PRINTK 401 select SYS_SUPPORTS_32BIT_KERNEL 402 select SYS_SUPPORTS_64BIT_KERNEL 403 select SYS_SUPPORTS_BIG_ENDIAN 404 help 405 This are the SGI Indy, Challenge S and Indigo2, as well as certain 406 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 407 that runs on these, say Y here. 408 409config SGI_IP27 410 bool "SGI IP27 (Origin200/2000)" 411 select ARC 412 select ARC64 413 select BOOT_ELF64 414 select DEFAULT_SGI_PARTITION 415 select DMA_COHERENT 416 select SYS_HAS_EARLY_PRINTK 417 select HW_HAS_PCI 418 select NR_CPUS_DEFAULT_64 419 select SYS_HAS_CPU_R10000 420 select SYS_SUPPORTS_64BIT_KERNEL 421 select SYS_SUPPORTS_BIG_ENDIAN 422 select SYS_SUPPORTS_NUMA 423 select SYS_SUPPORTS_SMP 424 help 425 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 426 workstations. To compile a Linux kernel that runs on these, say Y 427 here. 428 429config SGI_IP28 430 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 431 depends on EXPERIMENTAL 432 select ARC 433 select ARC64 434 select BOOT_ELF64 435 select CEVT_R4K 436 select CSRC_R4K 437 select DEFAULT_SGI_PARTITION 438 select DMA_NONCOHERENT 439 select GENERIC_ISA_DMA_SUPPORT_BROKEN 440 select IRQ_CPU 441 select HW_HAS_EISA 442 select I8253 443 select I8259 444 select SGI_HAS_I8042 445 select SGI_HAS_INDYDOG 446 select SGI_HAS_HAL2 447 select SGI_HAS_SEEQ 448 select SGI_HAS_WD93 449 select SGI_HAS_ZILOG 450 select SWAP_IO_SPACE 451 select SYS_HAS_CPU_R10000 452 # 453 # Disable EARLY_PRINTK for now since it leads to overwritten prom 454 # memory during early boot on some machines. 455 # 456 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 457 # for a more details discussion 458 # 459 # select SYS_HAS_EARLY_PRINTK 460 select SYS_SUPPORTS_64BIT_KERNEL 461 select SYS_SUPPORTS_BIG_ENDIAN 462 help 463 This is the SGI Indigo2 with R10000 processor. To compile a Linux 464 kernel that runs on these, say Y here. 465 466config SGI_IP32 467 bool "SGI IP32 (O2)" 468 select ARC 469 select ARC32 470 select BOOT_ELF32 471 select CEVT_R4K 472 select CSRC_R4K 473 select DMA_NONCOHERENT 474 select HW_HAS_PCI 475 select IRQ_CPU 476 select R5000_CPU_SCACHE 477 select RM7000_CPU_SCACHE 478 select SYS_HAS_CPU_R5000 479 select SYS_HAS_CPU_R10000 if BROKEN 480 select SYS_HAS_CPU_RM7000 481 select SYS_HAS_CPU_NEVADA 482 select SYS_SUPPORTS_64BIT_KERNEL 483 select SYS_SUPPORTS_BIG_ENDIAN 484 help 485 If you want this kernel to run on SGI O2 workstation, say Y here. 486 487config SIBYTE_CRHINE 488 bool "Sibyte BCM91120C-CRhine" 489 depends on EXPERIMENTAL 490 select BOOT_ELF32 491 select DMA_COHERENT 492 select SIBYTE_BCM1120 493 select SWAP_IO_SPACE 494 select SYS_HAS_CPU_SB1 495 select SYS_SUPPORTS_BIG_ENDIAN 496 select SYS_SUPPORTS_LITTLE_ENDIAN 497 498config SIBYTE_CARMEL 499 bool "Sibyte BCM91120x-Carmel" 500 depends on EXPERIMENTAL 501 select BOOT_ELF32 502 select DMA_COHERENT 503 select SIBYTE_BCM1120 504 select SWAP_IO_SPACE 505 select SYS_HAS_CPU_SB1 506 select SYS_SUPPORTS_BIG_ENDIAN 507 select SYS_SUPPORTS_LITTLE_ENDIAN 508 509config SIBYTE_CRHONE 510 bool "Sibyte BCM91125C-CRhone" 511 depends on EXPERIMENTAL 512 select BOOT_ELF32 513 select DMA_COHERENT 514 select SIBYTE_BCM1125 515 select SWAP_IO_SPACE 516 select SYS_HAS_CPU_SB1 517 select SYS_SUPPORTS_BIG_ENDIAN 518 select SYS_SUPPORTS_HIGHMEM 519 select SYS_SUPPORTS_LITTLE_ENDIAN 520 521config SIBYTE_RHONE 522 bool "Sibyte BCM91125E-Rhone" 523 depends on EXPERIMENTAL 524 select BOOT_ELF32 525 select DMA_COHERENT 526 select SIBYTE_BCM1125H 527 select SWAP_IO_SPACE 528 select SYS_HAS_CPU_SB1 529 select SYS_SUPPORTS_BIG_ENDIAN 530 select SYS_SUPPORTS_LITTLE_ENDIAN 531 532config SIBYTE_SWARM 533 bool "Sibyte BCM91250A-SWARM" 534 select BOOT_ELF32 535 select DMA_COHERENT 536 select HAVE_PATA_PLATFORM 537 select NR_CPUS_DEFAULT_2 538 select SIBYTE_SB1250 539 select SWAP_IO_SPACE 540 select SYS_HAS_CPU_SB1 541 select SYS_SUPPORTS_BIG_ENDIAN 542 select SYS_SUPPORTS_HIGHMEM 543 select SYS_SUPPORTS_LITTLE_ENDIAN 544 select ZONE_DMA32 if 64BIT 545 546config SIBYTE_LITTLESUR 547 bool "Sibyte BCM91250C2-LittleSur" 548 depends on EXPERIMENTAL 549 select BOOT_ELF32 550 select DMA_COHERENT 551 select HAVE_PATA_PLATFORM 552 select NR_CPUS_DEFAULT_2 553 select SIBYTE_SB1250 554 select SWAP_IO_SPACE 555 select SYS_HAS_CPU_SB1 556 select SYS_SUPPORTS_BIG_ENDIAN 557 select SYS_SUPPORTS_HIGHMEM 558 select SYS_SUPPORTS_LITTLE_ENDIAN 559 560config SIBYTE_SENTOSA 561 bool "Sibyte BCM91250E-Sentosa" 562 depends on EXPERIMENTAL 563 select BOOT_ELF32 564 select DMA_COHERENT 565 select NR_CPUS_DEFAULT_2 566 select SIBYTE_SB1250 567 select SWAP_IO_SPACE 568 select SYS_HAS_CPU_SB1 569 select SYS_SUPPORTS_BIG_ENDIAN 570 select SYS_SUPPORTS_LITTLE_ENDIAN 571 572config SIBYTE_BIGSUR 573 bool "Sibyte BCM91480B-BigSur" 574 select BOOT_ELF32 575 select DMA_COHERENT 576 select NR_CPUS_DEFAULT_4 577 select SIBYTE_BCM1x80 578 select SWAP_IO_SPACE 579 select SYS_HAS_CPU_SB1 580 select SYS_SUPPORTS_BIG_ENDIAN 581 select SYS_SUPPORTS_HIGHMEM 582 select SYS_SUPPORTS_LITTLE_ENDIAN 583 select ZONE_DMA32 if 64BIT 584 585config SNI_RM 586 bool "SNI RM200/300/400" 587 select ARC if CPU_LITTLE_ENDIAN 588 select ARC32 if CPU_LITTLE_ENDIAN 589 select SNIPROM if CPU_BIG_ENDIAN 590 select ARCH_MAY_HAVE_PC_FDC 591 select BOOT_ELF32 592 select CEVT_R4K 593 select CSRC_R4K 594 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 595 select DMA_NONCOHERENT 596 select GENERIC_ISA_DMA 597 select HW_HAS_EISA 598 select HW_HAS_PCI 599 select IRQ_CPU 600 select I8253 601 select I8259 602 select ISA 603 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 604 select SYS_HAS_CPU_R4X00 605 select SYS_HAS_CPU_R5000 606 select SYS_HAS_CPU_R10000 607 select R5000_CPU_SCACHE 608 select SYS_HAS_EARLY_PRINTK 609 select SYS_SUPPORTS_32BIT_KERNEL 610 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 611 select SYS_SUPPORTS_BIG_ENDIAN 612 select SYS_SUPPORTS_HIGHMEM 613 select SYS_SUPPORTS_LITTLE_ENDIAN 614 help 615 The SNI RM200/300/400 are MIPS-based machines manufactured by 616 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 617 Technology and now in turn merged with Fujitsu. Say Y here to 618 support this machine type. 619 620config MACH_TX39XX 621 bool "Toshiba TX39 series based machines" 622 623config MACH_TX49XX 624 bool "Toshiba TX49 series based machines" 625 626config MIKROTIK_RB532 627 bool "Mikrotik RB532 boards" 628 select CEVT_R4K 629 select CSRC_R4K 630 select DMA_NONCOHERENT 631 select HW_HAS_PCI 632 select IRQ_CPU 633 select SYS_HAS_CPU_MIPS32_R1 634 select SYS_SUPPORTS_32BIT_KERNEL 635 select SYS_SUPPORTS_LITTLE_ENDIAN 636 select SWAP_IO_SPACE 637 select BOOT_RAW 638 select ARCH_REQUIRE_GPIOLIB 639 help 640 Support the Mikrotik(tm) RouterBoard 532 series, 641 based on the IDT RC32434 SoC. 642 643config WR_PPMC 644 bool "Wind River PPMC board" 645 select CEVT_R4K 646 select CSRC_R4K 647 select IRQ_CPU 648 select BOOT_ELF32 649 select DMA_NONCOHERENT 650 select HW_HAS_PCI 651 select PCI_GT64XXX_PCI0 652 select SWAP_IO_SPACE 653 select SYS_HAS_CPU_MIPS32_R1 654 select SYS_HAS_CPU_MIPS32_R2 655 select SYS_HAS_CPU_MIPS64_R1 656 select SYS_HAS_CPU_NEVADA 657 select SYS_HAS_CPU_RM7000 658 select SYS_SUPPORTS_32BIT_KERNEL 659 select SYS_SUPPORTS_64BIT_KERNEL 660 select SYS_SUPPORTS_BIG_ENDIAN 661 select SYS_SUPPORTS_LITTLE_ENDIAN 662 help 663 This enables support for the Wind River MIPS32 4KC PPMC evaluation 664 board, which is based on GT64120 bridge chip. 665 666config CAVIUM_OCTEON_SIMULATOR 667 bool "Cavium Networks Octeon Simulator" 668 select CEVT_R4K 669 select 64BIT_PHYS_ADDR 670 select DMA_COHERENT 671 select SYS_SUPPORTS_64BIT_KERNEL 672 select SYS_SUPPORTS_BIG_ENDIAN 673 select SYS_SUPPORTS_HIGHMEM 674 select SYS_SUPPORTS_HOTPLUG_CPU 675 select SYS_HAS_CPU_CAVIUM_OCTEON 676 help 677 The Octeon simulator is software performance model of the Cavium 678 Octeon Processor. It supports simulating Octeon processors on x86 679 hardware. 680 681config CAVIUM_OCTEON_REFERENCE_BOARD 682 bool "Cavium Networks Octeon reference board" 683 select CEVT_R4K 684 select 64BIT_PHYS_ADDR 685 select DMA_COHERENT 686 select SYS_SUPPORTS_64BIT_KERNEL 687 select SYS_SUPPORTS_BIG_ENDIAN 688 select SYS_SUPPORTS_HIGHMEM 689 select SYS_SUPPORTS_HOTPLUG_CPU 690 select SYS_HAS_EARLY_PRINTK 691 select SYS_HAS_CPU_CAVIUM_OCTEON 692 select SWAP_IO_SPACE 693 select HW_HAS_PCI 694 select ARCH_SUPPORTS_MSI 695 help 696 This option supports all of the Octeon reference boards from Cavium 697 Networks. It builds a kernel that dynamically determines the Octeon 698 CPU type and supports all known board reference implementations. 699 Some of the supported boards are: 700 EBT3000 701 EBH3000 702 EBH3100 703 Thunder 704 Kodama 705 Hikari 706 Say Y here for most Octeon reference boards. 707 708endchoice 709 710source "arch/mips/alchemy/Kconfig" 711source "arch/mips/bcm63xx/Kconfig" 712source "arch/mips/jazz/Kconfig" 713source "arch/mips/jz4740/Kconfig" 714source "arch/mips/lasat/Kconfig" 715source "arch/mips/pmc-sierra/Kconfig" 716source "arch/mips/powertv/Kconfig" 717source "arch/mips/sgi-ip27/Kconfig" 718source "arch/mips/sibyte/Kconfig" 719source "arch/mips/txx9/Kconfig" 720source "arch/mips/vr41xx/Kconfig" 721source "arch/mips/cavium-octeon/Kconfig" 722source "arch/mips/loongson/Kconfig" 723 724endmenu 725 726config RWSEM_GENERIC_SPINLOCK 727 bool 728 default y 729 730config RWSEM_XCHGADD_ALGORITHM 731 bool 732 733config ARCH_HAS_ILOG2_U32 734 bool 735 default n 736 737config ARCH_HAS_ILOG2_U64 738 bool 739 default n 740 741config ARCH_SUPPORTS_OPROFILE 742 bool 743 default y if !MIPS_MT_SMTC 744 745config GENERIC_FIND_NEXT_BIT 746 bool 747 default y 748 749config GENERIC_HWEIGHT 750 bool 751 default y 752 753config GENERIC_CALIBRATE_DELAY 754 bool 755 default y 756 757config GENERIC_CLOCKEVENTS 758 bool 759 default y 760 761config GENERIC_CMOS_UPDATE 762 bool 763 default y 764 765config SCHED_OMIT_FRAME_POINTER 766 bool 767 default y 768 769config GENERIC_HARDIRQS_NO__DO_IRQ 770 def_bool y 771 772# 773# Select some configuration options automatically based on user selections. 774# 775config ARC 776 bool 777 778config ARCH_MAY_HAVE_PC_FDC 779 bool 780 781config BOOT_RAW 782 bool 783 784config CEVT_BCM1480 785 bool 786 787config CEVT_DS1287 788 bool 789 790config CEVT_GT641XX 791 bool 792 793config CEVT_R4K_LIB 794 bool 795 796config CEVT_R4K 797 select CEVT_R4K_LIB 798 bool 799 800config CEVT_SB1250 801 bool 802 803config CEVT_TXX9 804 bool 805 806config CSRC_BCM1480 807 bool 808 809config CSRC_IOASIC 810 bool 811 812config CSRC_POWERTV 813 bool 814 815config CSRC_R4K_LIB 816 bool 817 818config CSRC_R4K 819 select CSRC_R4K_LIB 820 bool 821 822config CSRC_SB1250 823 bool 824 825config GPIO_TXX9 826 select GENERIC_GPIO 827 select ARCH_REQUIRE_GPIOLIB 828 bool 829 830config CFE 831 bool 832 833config DMA_COHERENT 834 bool 835 836config DMA_NONCOHERENT 837 bool 838 select NEED_DMA_MAP_STATE 839 840config NEED_DMA_MAP_STATE 841 bool 842 843config SYS_HAS_EARLY_PRINTK 844 bool 845 846config HOTPLUG_CPU 847 bool "Support for hot-pluggable CPUs" 848 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 849 help 850 Say Y here to allow turning CPUs off and on. CPUs can be 851 controlled through /sys/devices/system/cpu. 852 (Note: power management support will enable this option 853 automatically on SMP systems. ) 854 Say N if you want to disable CPU hotplug. 855 856config SYS_SUPPORTS_HOTPLUG_CPU 857 bool 858 859config I8259 860 bool 861 862config MIPS_BONITO64 863 bool 864 865config MIPS_MSC 866 bool 867 868config MIPS_NILE4 869 bool 870 871config MIPS_DISABLE_OBSOLETE_IDE 872 bool 873 874config SYNC_R4K 875 bool 876 877config NO_IOPORT 878 def_bool n 879 880config GENERIC_ISA_DMA 881 bool 882 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 883 884config GENERIC_ISA_DMA_SUPPORT_BROKEN 885 bool 886 select GENERIC_ISA_DMA 887 888config GENERIC_GPIO 889 bool 890 891# 892# Endianess selection. Sufficiently obscure so many users don't know what to 893# answer,so we try hard to limit the available choices. Also the use of a 894# choice statement should be more obvious to the user. 895# 896choice 897 prompt "Endianess selection" 898 help 899 Some MIPS machines can be configured for either little or big endian 900 byte order. These modes require different kernels and a different 901 Linux distribution. In general there is one preferred byteorder for a 902 particular system but some systems are just as commonly used in the 903 one or the other endianness. 904 905config CPU_BIG_ENDIAN 906 bool "Big endian" 907 depends on SYS_SUPPORTS_BIG_ENDIAN 908 909config CPU_LITTLE_ENDIAN 910 bool "Little endian" 911 depends on SYS_SUPPORTS_LITTLE_ENDIAN 912 help 913 914endchoice 915 916config EXPORT_UASM 917 bool 918 919config SYS_SUPPORTS_APM_EMULATION 920 bool 921 922config SYS_SUPPORTS_BIG_ENDIAN 923 bool 924 925config SYS_SUPPORTS_LITTLE_ENDIAN 926 bool 927 928config SYS_SUPPORTS_HUGETLBFS 929 bool 930 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 931 default y 932 933config IRQ_CPU 934 bool 935 936config IRQ_CPU_RM7K 937 bool 938 939config IRQ_CPU_RM9K 940 bool 941 942config IRQ_MSP_SLP 943 bool 944 945config IRQ_MSP_CIC 946 bool 947 948config IRQ_TXX9 949 bool 950 951config IRQ_GT641XX 952 bool 953 954config IRQ_GIC 955 bool 956 957config IRQ_CPU_OCTEON 958 bool 959 960config MIPS_BOARDS_GEN 961 bool 962 963config PCI_GT64XXX_PCI0 964 bool 965 966config NO_EXCEPT_FILL 967 bool 968 969config MIPS_RM9122 970 bool 971 select SERIAL_RM9000 972 973config SOC_EMMA2RH 974 bool 975 select CEVT_R4K 976 select CSRC_R4K 977 select DMA_NONCOHERENT 978 select IRQ_CPU 979 select SWAP_IO_SPACE 980 select SYS_HAS_CPU_R5500 981 select SYS_SUPPORTS_32BIT_KERNEL 982 select SYS_SUPPORTS_64BIT_KERNEL 983 select SYS_SUPPORTS_BIG_ENDIAN 984 985config SOC_PNX833X 986 bool 987 select CEVT_R4K 988 select CSRC_R4K 989 select IRQ_CPU 990 select DMA_NONCOHERENT 991 select SYS_HAS_CPU_MIPS32_R2 992 select SYS_SUPPORTS_32BIT_KERNEL 993 select SYS_SUPPORTS_LITTLE_ENDIAN 994 select SYS_SUPPORTS_BIG_ENDIAN 995 select GENERIC_GPIO 996 select CPU_MIPSR2_IRQ_VI 997 998config SOC_PNX8335 999 bool 1000 select SOC_PNX833X 1001 1002config PNX8550 1003 bool 1004 select SOC_PNX8550 1005 1006config SOC_PNX8550 1007 bool 1008 select DMA_NONCOHERENT 1009 select HW_HAS_PCI 1010 select SYS_HAS_CPU_MIPS32_R1 1011 select SYS_HAS_EARLY_PRINTK 1012 select SYS_SUPPORTS_32BIT_KERNEL 1013 select GENERIC_GPIO 1014 1015config SWAP_IO_SPACE 1016 bool 1017 1018config SERIAL_RM9000 1019 bool 1020 1021config SGI_HAS_INDYDOG 1022 bool 1023 1024config SGI_HAS_HAL2 1025 bool 1026 1027config SGI_HAS_SEEQ 1028 bool 1029 1030config SGI_HAS_WD93 1031 bool 1032 1033config SGI_HAS_ZILOG 1034 bool 1035 1036config SGI_HAS_I8042 1037 bool 1038 1039config DEFAULT_SGI_PARTITION 1040 bool 1041 1042config ARC32 1043 bool 1044 1045config SNIPROM 1046 bool 1047 1048config BOOT_ELF32 1049 bool 1050 1051config MIPS_L1_CACHE_SHIFT 1052 int 1053 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1054 default "6" if MIPS_CPU_SCACHE 1055 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1056 default "5" 1057 1058config HAVE_STD_PC_SERIAL_PORT 1059 bool 1060 1061config ARC_CONSOLE 1062 bool "ARC console support" 1063 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1064 1065config ARC_MEMORY 1066 bool 1067 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1068 default y 1069 1070config ARC_PROMLIB 1071 bool 1072 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1073 default y 1074 1075config ARC64 1076 bool 1077 1078config BOOT_ELF64 1079 bool 1080 1081menu "CPU selection" 1082 1083choice 1084 prompt "CPU type" 1085 default CPU_R4X00 1086 1087config CPU_LOONGSON2E 1088 bool "Loongson 2E" 1089 depends on SYS_HAS_CPU_LOONGSON2E 1090 select CPU_LOONGSON2 1091 help 1092 The Loongson 2E processor implements the MIPS III instruction set 1093 with many extensions. 1094 1095 It has an internal FPGA northbridge, which is compatiable to 1096 bonito64. 1097 1098config CPU_LOONGSON2F 1099 bool "Loongson 2F" 1100 depends on SYS_HAS_CPU_LOONGSON2F 1101 select CPU_LOONGSON2 1102 select GENERIC_GPIO 1103 select ARCH_REQUIRE_GPIOLIB 1104 help 1105 The Loongson 2F processor implements the MIPS III instruction set 1106 with many extensions. 1107 1108 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1109 have a similar programming interface with FPGA northbridge used in 1110 Loongson2E. 1111 1112config CPU_MIPS32_R1 1113 bool "MIPS32 Release 1" 1114 depends on SYS_HAS_CPU_MIPS32_R1 1115 select CPU_HAS_PREFETCH 1116 select CPU_SUPPORTS_32BIT_KERNEL 1117 select CPU_SUPPORTS_HIGHMEM 1118 help 1119 Choose this option to build a kernel for release 1 or later of the 1120 MIPS32 architecture. Most modern embedded systems with a 32-bit 1121 MIPS processor are based on a MIPS32 processor. If you know the 1122 specific type of processor in your system, choose those that one 1123 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1124 Release 2 of the MIPS32 architecture is available since several 1125 years so chances are you even have a MIPS32 Release 2 processor 1126 in which case you should choose CPU_MIPS32_R2 instead for better 1127 performance. 1128 1129config CPU_MIPS32_R2 1130 bool "MIPS32 Release 2" 1131 depends on SYS_HAS_CPU_MIPS32_R2 1132 select CPU_HAS_PREFETCH 1133 select CPU_SUPPORTS_32BIT_KERNEL 1134 select CPU_SUPPORTS_HIGHMEM 1135 help 1136 Choose this option to build a kernel for release 2 or later of the 1137 MIPS32 architecture. Most modern embedded systems with a 32-bit 1138 MIPS processor are based on a MIPS32 processor. If you know the 1139 specific type of processor in your system, choose those that one 1140 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1141 1142config CPU_MIPS64_R1 1143 bool "MIPS64 Release 1" 1144 depends on SYS_HAS_CPU_MIPS64_R1 1145 select CPU_HAS_PREFETCH 1146 select CPU_SUPPORTS_32BIT_KERNEL 1147 select CPU_SUPPORTS_64BIT_KERNEL 1148 select CPU_SUPPORTS_HIGHMEM 1149 select CPU_SUPPORTS_HUGEPAGES 1150 help 1151 Choose this option to build a kernel for release 1 or later of the 1152 MIPS64 architecture. Many modern embedded systems with a 64-bit 1153 MIPS processor are based on a MIPS64 processor. If you know the 1154 specific type of processor in your system, choose those that one 1155 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1156 Release 2 of the MIPS64 architecture is available since several 1157 years so chances are you even have a MIPS64 Release 2 processor 1158 in which case you should choose CPU_MIPS64_R2 instead for better 1159 performance. 1160 1161config CPU_MIPS64_R2 1162 bool "MIPS64 Release 2" 1163 depends on SYS_HAS_CPU_MIPS64_R2 1164 select CPU_HAS_PREFETCH 1165 select CPU_SUPPORTS_32BIT_KERNEL 1166 select CPU_SUPPORTS_64BIT_KERNEL 1167 select CPU_SUPPORTS_HIGHMEM 1168 select CPU_SUPPORTS_HUGEPAGES 1169 help 1170 Choose this option to build a kernel for release 2 or later of the 1171 MIPS64 architecture. Many modern embedded systems with a 64-bit 1172 MIPS processor are based on a MIPS64 processor. If you know the 1173 specific type of processor in your system, choose those that one 1174 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1175 1176config CPU_R3000 1177 bool "R3000" 1178 depends on SYS_HAS_CPU_R3000 1179 select CPU_HAS_WB 1180 select CPU_SUPPORTS_32BIT_KERNEL 1181 select CPU_SUPPORTS_HIGHMEM 1182 help 1183 Please make sure to pick the right CPU type. Linux/MIPS is not 1184 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1185 *not* work on R4000 machines and vice versa. However, since most 1186 of the supported machines have an R4000 (or similar) CPU, R4x00 1187 might be a safe bet. If the resulting kernel does not work, 1188 try to recompile with R3000. 1189 1190config CPU_TX39XX 1191 bool "R39XX" 1192 depends on SYS_HAS_CPU_TX39XX 1193 select CPU_SUPPORTS_32BIT_KERNEL 1194 1195config CPU_VR41XX 1196 bool "R41xx" 1197 depends on SYS_HAS_CPU_VR41XX 1198 select CPU_SUPPORTS_32BIT_KERNEL 1199 select CPU_SUPPORTS_64BIT_KERNEL 1200 help 1201 The options selects support for the NEC VR4100 series of processors. 1202 Only choose this option if you have one of these processors as a 1203 kernel built with this option will not run on any other type of 1204 processor or vice versa. 1205 1206config CPU_R4300 1207 bool "R4300" 1208 depends on SYS_HAS_CPU_R4300 1209 select CPU_SUPPORTS_32BIT_KERNEL 1210 select CPU_SUPPORTS_64BIT_KERNEL 1211 help 1212 MIPS Technologies R4300-series processors. 1213 1214config CPU_R4X00 1215 bool "R4x00" 1216 depends on SYS_HAS_CPU_R4X00 1217 select CPU_SUPPORTS_32BIT_KERNEL 1218 select CPU_SUPPORTS_64BIT_KERNEL 1219 help 1220 MIPS Technologies R4000-series processors other than 4300, including 1221 the R4000, R4400, R4600, and 4700. 1222 1223config CPU_TX49XX 1224 bool "R49XX" 1225 depends on SYS_HAS_CPU_TX49XX 1226 select CPU_HAS_PREFETCH 1227 select CPU_SUPPORTS_32BIT_KERNEL 1228 select CPU_SUPPORTS_64BIT_KERNEL 1229 1230config CPU_R5000 1231 bool "R5000" 1232 depends on SYS_HAS_CPU_R5000 1233 select CPU_SUPPORTS_32BIT_KERNEL 1234 select CPU_SUPPORTS_64BIT_KERNEL 1235 help 1236 MIPS Technologies R5000-series processors other than the Nevada. 1237 1238config CPU_R5432 1239 bool "R5432" 1240 depends on SYS_HAS_CPU_R5432 1241 select CPU_SUPPORTS_32BIT_KERNEL 1242 select CPU_SUPPORTS_64BIT_KERNEL 1243 1244config CPU_R5500 1245 bool "R5500" 1246 depends on SYS_HAS_CPU_R5500 1247 select CPU_SUPPORTS_32BIT_KERNEL 1248 select CPU_SUPPORTS_64BIT_KERNEL 1249 select CPU_SUPPORTS_HUGEPAGES 1250 help 1251 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1252 instruction set. 1253 1254config CPU_R6000 1255 bool "R6000" 1256 depends on EXPERIMENTAL 1257 depends on SYS_HAS_CPU_R6000 1258 select CPU_SUPPORTS_32BIT_KERNEL 1259 help 1260 MIPS Technologies R6000 and R6000A series processors. Note these 1261 processors are extremely rare and the support for them is incomplete. 1262 1263config CPU_NEVADA 1264 bool "RM52xx" 1265 depends on SYS_HAS_CPU_NEVADA 1266 select CPU_SUPPORTS_32BIT_KERNEL 1267 select CPU_SUPPORTS_64BIT_KERNEL 1268 help 1269 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1270 1271config CPU_R8000 1272 bool "R8000" 1273 depends on EXPERIMENTAL 1274 depends on SYS_HAS_CPU_R8000 1275 select CPU_HAS_PREFETCH 1276 select CPU_SUPPORTS_64BIT_KERNEL 1277 help 1278 MIPS Technologies R8000 processors. Note these processors are 1279 uncommon and the support for them is incomplete. 1280 1281config CPU_R10000 1282 bool "R10000" 1283 depends on SYS_HAS_CPU_R10000 1284 select CPU_HAS_PREFETCH 1285 select CPU_SUPPORTS_32BIT_KERNEL 1286 select CPU_SUPPORTS_64BIT_KERNEL 1287 select CPU_SUPPORTS_HIGHMEM 1288 help 1289 MIPS Technologies R10000-series processors. 1290 1291config CPU_RM7000 1292 bool "RM7000" 1293 depends on SYS_HAS_CPU_RM7000 1294 select CPU_HAS_PREFETCH 1295 select CPU_SUPPORTS_32BIT_KERNEL 1296 select CPU_SUPPORTS_64BIT_KERNEL 1297 select CPU_SUPPORTS_HIGHMEM 1298 1299config CPU_RM9000 1300 bool "RM9000" 1301 depends on SYS_HAS_CPU_RM9000 1302 select CPU_HAS_PREFETCH 1303 select CPU_SUPPORTS_32BIT_KERNEL 1304 select CPU_SUPPORTS_64BIT_KERNEL 1305 select CPU_SUPPORTS_HIGHMEM 1306 select WEAK_ORDERING 1307 1308config CPU_SB1 1309 bool "SB1" 1310 depends on SYS_HAS_CPU_SB1 1311 select CPU_SUPPORTS_32BIT_KERNEL 1312 select CPU_SUPPORTS_64BIT_KERNEL 1313 select CPU_SUPPORTS_HIGHMEM 1314 select WEAK_ORDERING 1315 1316config CPU_CAVIUM_OCTEON 1317 bool "Cavium Octeon processor" 1318 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1319 select IRQ_CPU 1320 select IRQ_CPU_OCTEON 1321 select CPU_HAS_PREFETCH 1322 select CPU_SUPPORTS_64BIT_KERNEL 1323 select SYS_SUPPORTS_SMP 1324 select NR_CPUS_DEFAULT_16 1325 select WEAK_ORDERING 1326 select CPU_SUPPORTS_HIGHMEM 1327 select CPU_SUPPORTS_HUGEPAGES 1328 help 1329 The Cavium Octeon processor is a highly integrated chip containing 1330 many ethernet hardware widgets for networking tasks. The processor 1331 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1332 Full details can be found at http://www.caviumnetworks.com. 1333 1334endchoice 1335 1336if CPU_LOONGSON2F 1337config CPU_NOP_WORKAROUNDS 1338 bool 1339 1340config CPU_JUMP_WORKAROUNDS 1341 bool 1342 1343config CPU_LOONGSON2F_WORKAROUNDS 1344 bool "Loongson 2F Workarounds" 1345 default y 1346 select CPU_NOP_WORKAROUNDS 1347 select CPU_JUMP_WORKAROUNDS 1348 help 1349 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1350 require workarounds. Without workarounds the system may hang 1351 unexpectedly. For more information please refer to the gas 1352 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1353 1354 Loongson 2F03 and later have fixed these issues and no workarounds 1355 are needed. The workarounds have no significant side effect on them 1356 but may decrease the performance of the system so this option should 1357 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1358 systems. 1359 1360 If unsure, please say Y. 1361endif # CPU_LOONGSON2F 1362 1363config SYS_SUPPORTS_ZBOOT 1364 bool 1365 select HAVE_KERNEL_GZIP 1366 select HAVE_KERNEL_BZIP2 1367 select HAVE_KERNEL_LZMA 1368 select HAVE_KERNEL_LZO 1369 1370config SYS_SUPPORTS_ZBOOT_UART16550 1371 bool 1372 select SYS_SUPPORTS_ZBOOT 1373 1374config CPU_LOONGSON2 1375 bool 1376 select CPU_SUPPORTS_32BIT_KERNEL 1377 select CPU_SUPPORTS_64BIT_KERNEL 1378 select CPU_SUPPORTS_HIGHMEM 1379 1380config SYS_HAS_CPU_LOONGSON2E 1381 bool 1382 1383config SYS_HAS_CPU_LOONGSON2F 1384 bool 1385 select CPU_SUPPORTS_CPUFREQ 1386 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1387 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1388 1389config SYS_HAS_CPU_MIPS32_R1 1390 bool 1391 1392config SYS_HAS_CPU_MIPS32_R2 1393 bool 1394 1395config SYS_HAS_CPU_MIPS64_R1 1396 bool 1397 1398config SYS_HAS_CPU_MIPS64_R2 1399 bool 1400 1401config SYS_HAS_CPU_R3000 1402 bool 1403 1404config SYS_HAS_CPU_TX39XX 1405 bool 1406 1407config SYS_HAS_CPU_VR41XX 1408 bool 1409 1410config SYS_HAS_CPU_R4300 1411 bool 1412 1413config SYS_HAS_CPU_R4X00 1414 bool 1415 1416config SYS_HAS_CPU_TX49XX 1417 bool 1418 1419config SYS_HAS_CPU_R5000 1420 bool 1421 1422config SYS_HAS_CPU_R5432 1423 bool 1424 1425config SYS_HAS_CPU_R5500 1426 bool 1427 1428config SYS_HAS_CPU_R6000 1429 bool 1430 1431config SYS_HAS_CPU_NEVADA 1432 bool 1433 1434config SYS_HAS_CPU_R8000 1435 bool 1436 1437config SYS_HAS_CPU_R10000 1438 bool 1439 1440config SYS_HAS_CPU_RM7000 1441 bool 1442 1443config SYS_HAS_CPU_RM9000 1444 bool 1445 1446config SYS_HAS_CPU_SB1 1447 bool 1448 1449config SYS_HAS_CPU_CAVIUM_OCTEON 1450 bool 1451 1452# 1453# CPU may reorder R->R, R->W, W->R, W->W 1454# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1455# 1456config WEAK_ORDERING 1457 bool 1458 1459# 1460# CPU may reorder reads and writes beyond LL/SC 1461# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1462# 1463config WEAK_REORDERING_BEYOND_LLSC 1464 bool 1465endmenu 1466 1467# 1468# These two indicate any level of the MIPS32 and MIPS64 architecture 1469# 1470config CPU_MIPS32 1471 bool 1472 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1473 1474config CPU_MIPS64 1475 bool 1476 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1477 1478# 1479# These two indicate the revision of the architecture, either Release 1 or Release 2 1480# 1481config CPU_MIPSR1 1482 bool 1483 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1484 1485config CPU_MIPSR2 1486 bool 1487 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1488 1489config SYS_SUPPORTS_32BIT_KERNEL 1490 bool 1491config SYS_SUPPORTS_64BIT_KERNEL 1492 bool 1493config CPU_SUPPORTS_32BIT_KERNEL 1494 bool 1495config CPU_SUPPORTS_64BIT_KERNEL 1496 bool 1497config CPU_SUPPORTS_CPUFREQ 1498 bool 1499config CPU_SUPPORTS_ADDRWINCFG 1500 bool 1501config CPU_SUPPORTS_HUGEPAGES 1502 bool 1503config CPU_SUPPORTS_UNCACHED_ACCELERATED 1504 bool 1505config MIPS_PGD_C0_CONTEXT 1506 bool 1507 default y if 64BIT && CPU_MIPSR2 1508 1509# 1510# Set to y for ptrace access to watch registers. 1511# 1512config HARDWARE_WATCHPOINTS 1513 bool 1514 default y if CPU_MIPSR1 || CPU_MIPSR2 1515 1516menu "Kernel type" 1517 1518choice 1519 1520 prompt "Kernel code model" 1521 help 1522 You should only select this option if you have a workload that 1523 actually benefits from 64-bit processing or if your machine has 1524 large memory. You will only be presented a single option in this 1525 menu if your system does not support both 32-bit and 64-bit kernels. 1526 1527config 32BIT 1528 bool "32-bit kernel" 1529 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1530 select TRAD_SIGNALS 1531 help 1532 Select this option if you want to build a 32-bit kernel. 1533config 64BIT 1534 bool "64-bit kernel" 1535 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1536 select HAVE_SYSCALL_WRAPPERS 1537 help 1538 Select this option if you want to build a 64-bit kernel. 1539 1540endchoice 1541 1542choice 1543 prompt "Kernel page size" 1544 default PAGE_SIZE_4KB 1545 1546config PAGE_SIZE_4KB 1547 bool "4kB" 1548 depends on !CPU_LOONGSON2 1549 help 1550 This option select the standard 4kB Linux page size. On some 1551 R3000-family processors this is the only available page size. Using 1552 4kB page size will minimize memory consumption and is therefore 1553 recommended for low memory systems. 1554 1555config PAGE_SIZE_8KB 1556 bool "8kB" 1557 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1558 help 1559 Using 8kB page size will result in higher performance kernel at 1560 the price of higher memory consumption. This option is available 1561 only on R8000 and cnMIPS processors. Note that you will need a 1562 suitable Linux distribution to support this. 1563 1564config PAGE_SIZE_16KB 1565 bool "16kB" 1566 depends on !CPU_R3000 && !CPU_TX39XX 1567 help 1568 Using 16kB page size will result in higher performance kernel at 1569 the price of higher memory consumption. This option is available on 1570 all non-R3000 family processors. Note that you will need a suitable 1571 Linux distribution to support this. 1572 1573config PAGE_SIZE_32KB 1574 bool "32kB" 1575 depends on CPU_CAVIUM_OCTEON 1576 help 1577 Using 32kB page size will result in higher performance kernel at 1578 the price of higher memory consumption. This option is available 1579 only on cnMIPS cores. Note that you will need a suitable Linux 1580 distribution to support this. 1581 1582config PAGE_SIZE_64KB 1583 bool "64kB" 1584 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1585 help 1586 Using 64kB page size will result in higher performance kernel at 1587 the price of higher memory consumption. This option is available on 1588 all non-R3000 family processor. Not that at the time of this 1589 writing this option is still high experimental. 1590 1591endchoice 1592 1593config BOARD_SCACHE 1594 bool 1595 1596config IP22_CPU_SCACHE 1597 bool 1598 select BOARD_SCACHE 1599 1600# 1601# Support for a MIPS32 / MIPS64 style S-caches 1602# 1603config MIPS_CPU_SCACHE 1604 bool 1605 select BOARD_SCACHE 1606 1607config R5000_CPU_SCACHE 1608 bool 1609 select BOARD_SCACHE 1610 1611config RM7000_CPU_SCACHE 1612 bool 1613 select BOARD_SCACHE 1614 1615config SIBYTE_DMA_PAGEOPS 1616 bool "Use DMA to clear/copy pages" 1617 depends on CPU_SB1 1618 help 1619 Instead of using the CPU to zero and copy pages, use a Data Mover 1620 channel. These DMA channels are otherwise unused by the standard 1621 SiByte Linux port. Seems to give a small performance benefit. 1622 1623config CPU_HAS_PREFETCH 1624 bool 1625 1626choice 1627 prompt "MIPS MT options" 1628 1629config MIPS_MT_DISABLED 1630 bool "Disable multithreading support." 1631 help 1632 Use this option if your workload can't take advantage of 1633 MIPS hardware multithreading support. On systems that don't have 1634 the option of an MT-enabled processor this option will be the only 1635 option in this menu. 1636 1637config MIPS_MT_SMP 1638 bool "Use 1 TC on each available VPE for SMP" 1639 depends on SYS_SUPPORTS_MULTITHREADING 1640 select CPU_MIPSR2_IRQ_VI 1641 select CPU_MIPSR2_IRQ_EI 1642 select MIPS_MT 1643 select NR_CPUS_DEFAULT_2 1644 select SMP 1645 select SYS_SUPPORTS_SCHED_SMT if SMP 1646 select SYS_SUPPORTS_SMP 1647 select SMP_UP 1648 help 1649 This is a kernel model which is also known a VSMP or lately 1650 has been marketesed into SMVP. 1651 1652config MIPS_MT_SMTC 1653 bool "SMTC: Use all TCs on all VPEs for SMP" 1654 depends on CPU_MIPS32_R2 1655 #depends on CPU_MIPS64_R2 # once there is hardware ... 1656 depends on SYS_SUPPORTS_MULTITHREADING 1657 select CPU_MIPSR2_IRQ_VI 1658 select CPU_MIPSR2_IRQ_EI 1659 select MIPS_MT 1660 select NR_CPUS_DEFAULT_8 1661 select SMP 1662 select SYS_SUPPORTS_SMP 1663 select SMP_UP 1664 help 1665 This is a kernel model which is known a SMTC or lately has been 1666 marketesed into SMVP. 1667 1668endchoice 1669 1670config MIPS_MT 1671 bool 1672 1673config SCHED_SMT 1674 bool "SMT (multithreading) scheduler support" 1675 depends on SYS_SUPPORTS_SCHED_SMT 1676 default n 1677 help 1678 SMT scheduler support improves the CPU scheduler's decision making 1679 when dealing with MIPS MT enabled cores at a cost of slightly 1680 increased overhead in some places. If unsure say N here. 1681 1682config SYS_SUPPORTS_SCHED_SMT 1683 bool 1684 1685 1686config SYS_SUPPORTS_MULTITHREADING 1687 bool 1688 1689config MIPS_MT_FPAFF 1690 bool "Dynamic FPU affinity for FP-intensive threads" 1691 default y 1692 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1693 1694config MIPS_VPE_LOADER 1695 bool "VPE loader support." 1696 depends on SYS_SUPPORTS_MULTITHREADING 1697 select CPU_MIPSR2_IRQ_VI 1698 select CPU_MIPSR2_IRQ_EI 1699 select MIPS_MT 1700 help 1701 Includes a loader for loading an elf relocatable object 1702 onto another VPE and running it. 1703 1704config MIPS_MT_SMTC_IM_BACKSTOP 1705 bool "Use per-TC register bits as backstop for inhibited IM bits" 1706 depends on MIPS_MT_SMTC 1707 default n 1708 help 1709 To support multiple TC microthreads acting as "CPUs" within 1710 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1711 during interrupt handling. To support legacy drivers and interrupt 1712 controller management code, SMTC has a "backstop" to track and 1713 if necessary restore the interrupt mask. This has some performance 1714 impact on interrupt service overhead. 1715 1716config MIPS_MT_SMTC_IRQAFF 1717 bool "Support IRQ affinity API" 1718 depends on MIPS_MT_SMTC 1719 default n 1720 help 1721 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1722 for SMTC Linux kernel. Requires platform support, of which 1723 an example can be found in the MIPS kernel i8259 and Malta 1724 platform code. Adds some overhead to interrupt dispatch, and 1725 should be used only if you know what you are doing. 1726 1727config MIPS_VPE_LOADER_TOM 1728 bool "Load VPE program into memory hidden from linux" 1729 depends on MIPS_VPE_LOADER 1730 default y 1731 help 1732 The loader can use memory that is present but has been hidden from 1733 Linux using the kernel command line option "mem=xxMB". It's up to 1734 you to ensure the amount you put in the option and the space your 1735 program requires is less or equal to the amount physically present. 1736 1737# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1738config MIPS_VPE_APSP_API 1739 bool "Enable support for AP/SP API (RTLX)" 1740 depends on MIPS_VPE_LOADER 1741 help 1742 1743config MIPS_APSP_KSPD 1744 bool "Enable KSPD" 1745 depends on MIPS_VPE_APSP_API 1746 default y 1747 help 1748 KSPD is a kernel daemon that accepts syscall requests from the SP 1749 side, actions them and returns the results. It also handles the 1750 "exit" syscall notifying other kernel modules the SP program is 1751 exiting. You probably want to say yes here. 1752 1753config MIPS_CMP 1754 bool "MIPS CMP framework support" 1755 depends on SYS_SUPPORTS_MIPS_CMP 1756 select SYNC_R4K 1757 select SYS_SUPPORTS_SMP 1758 select SYS_SUPPORTS_SCHED_SMT if SMP 1759 select WEAK_ORDERING 1760 default n 1761 help 1762 This is a placeholder option for the GCMP work. It will need to 1763 be handled differently... 1764 1765config SB1_PASS_1_WORKAROUNDS 1766 bool 1767 depends on CPU_SB1_PASS_1 1768 default y 1769 1770config SB1_PASS_2_WORKAROUNDS 1771 bool 1772 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1773 default y 1774 1775config SB1_PASS_2_1_WORKAROUNDS 1776 bool 1777 depends on CPU_SB1 && CPU_SB1_PASS_2 1778 default y 1779 1780config 64BIT_PHYS_ADDR 1781 bool 1782 1783config ARCH_PHYS_ADDR_T_64BIT 1784 def_bool 64BIT_PHYS_ADDR 1785 1786config CPU_HAS_SMARTMIPS 1787 depends on SYS_SUPPORTS_SMARTMIPS 1788 bool "Support for the SmartMIPS ASE" 1789 help 1790 SmartMIPS is a extension of the MIPS32 architecture aimed at 1791 increased security at both hardware and software level for 1792 smartcards. Enabling this option will allow proper use of the 1793 SmartMIPS instructions by Linux applications. However a kernel with 1794 this option will not work on a MIPS core without SmartMIPS core. If 1795 you don't know you probably don't have SmartMIPS and should say N 1796 here. 1797 1798config CPU_HAS_WB 1799 bool 1800 1801# 1802# Vectored interrupt mode is an R2 feature 1803# 1804config CPU_MIPSR2_IRQ_VI 1805 bool 1806 1807# 1808# Extended interrupt mode is an R2 feature 1809# 1810config CPU_MIPSR2_IRQ_EI 1811 bool 1812 1813config CPU_HAS_SYNC 1814 bool 1815 depends on !CPU_R3000 1816 default y 1817 1818config GENERIC_CLOCKEVENTS_BROADCAST 1819 bool 1820 1821# 1822# CPU non-features 1823# 1824config CPU_DADDI_WORKAROUNDS 1825 bool 1826 1827config CPU_R4000_WORKAROUNDS 1828 bool 1829 select CPU_R4400_WORKAROUNDS 1830 1831config CPU_R4400_WORKAROUNDS 1832 bool 1833 1834# 1835# Use the generic interrupt handling code in kernel/irq/: 1836# 1837config GENERIC_HARDIRQS 1838 bool 1839 default y 1840 1841config GENERIC_IRQ_PROBE 1842 bool 1843 default y 1844 1845config IRQ_PER_CPU 1846 bool 1847 1848# 1849# - Highmem only makes sense for the 32-bit kernel. 1850# - The current highmem code will only work properly on physically indexed 1851# caches such as R3000, SB1, R7000 or those that look like they're virtually 1852# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1853# moment we protect the user and offer the highmem option only on machines 1854# where it's known to be safe. This will not offer highmem on a few systems 1855# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1856# indexed CPUs but we're playing safe. 1857# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 1858# know they might have memory configurations that could make use of highmem 1859# support. 1860# 1861config HIGHMEM 1862 bool "High Memory Support" 1863 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 1864 1865config CPU_SUPPORTS_HIGHMEM 1866 bool 1867 1868config SYS_SUPPORTS_HIGHMEM 1869 bool 1870 1871config SYS_SUPPORTS_SMARTMIPS 1872 bool 1873 1874config ARCH_FLATMEM_ENABLE 1875 def_bool y 1876 depends on !NUMA && !CPU_LOONGSON2 1877 1878config ARCH_DISCONTIGMEM_ENABLE 1879 bool 1880 default y if SGI_IP27 1881 help 1882 Say Y to support efficient handling of discontiguous physical memory, 1883 for architectures which are either NUMA (Non-Uniform Memory Access) 1884 or have huge holes in the physical address space for other reasons. 1885 See <file:Documentation/vm/numa> for more. 1886 1887config ARCH_POPULATES_NODE_MAP 1888 def_bool y 1889 1890config ARCH_SPARSEMEM_ENABLE 1891 bool 1892 select SPARSEMEM_STATIC 1893 1894config NUMA 1895 bool "NUMA Support" 1896 depends on SYS_SUPPORTS_NUMA 1897 help 1898 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 1899 Access). This option improves performance on systems with more 1900 than two nodes; on two node systems it is generally better to 1901 leave it disabled; on single node systems disable this option 1902 disabled. 1903 1904config SYS_SUPPORTS_NUMA 1905 bool 1906 1907config NODES_SHIFT 1908 int 1909 default "6" 1910 depends on NEED_MULTIPLE_NODES 1911 1912source "mm/Kconfig" 1913 1914config SMP 1915 bool "Multi-Processing support" 1916 depends on SYS_SUPPORTS_SMP 1917 select IRQ_PER_CPU 1918 select USE_GENERIC_SMP_HELPERS 1919 help 1920 This enables support for systems with more than one CPU. If you have 1921 a system with only one CPU, like most personal computers, say N. If 1922 you have a system with more than one CPU, say Y. 1923 1924 If you say N here, the kernel will run on single and multiprocessor 1925 machines, but will use only one CPU of a multiprocessor machine. If 1926 you say Y here, the kernel will run on many, but not all, 1927 singleprocessor machines. On a singleprocessor machine, the kernel 1928 will run faster if you say N here. 1929 1930 People using multiprocessor machines who say Y here should also say 1931 Y to "Enhanced Real Time Clock Support", below. 1932 1933 See also the SMP-HOWTO available at 1934 <http://www.tldp.org/docs.html#howto>. 1935 1936 If you don't know what to do here, say N. 1937 1938config SMP_UP 1939 bool 1940 1941config SYS_SUPPORTS_MIPS_CMP 1942 bool 1943 1944config SYS_SUPPORTS_SMP 1945 bool 1946 1947config NR_CPUS_DEFAULT_1 1948 bool 1949 1950config NR_CPUS_DEFAULT_2 1951 bool 1952 1953config NR_CPUS_DEFAULT_4 1954 bool 1955 1956config NR_CPUS_DEFAULT_8 1957 bool 1958 1959config NR_CPUS_DEFAULT_16 1960 bool 1961 1962config NR_CPUS_DEFAULT_32 1963 bool 1964 1965config NR_CPUS_DEFAULT_64 1966 bool 1967 1968config NR_CPUS 1969 int "Maximum number of CPUs (2-64)" 1970 range 1 64 if NR_CPUS_DEFAULT_1 1971 depends on SMP 1972 default "1" if NR_CPUS_DEFAULT_1 1973 default "2" if NR_CPUS_DEFAULT_2 1974 default "4" if NR_CPUS_DEFAULT_4 1975 default "8" if NR_CPUS_DEFAULT_8 1976 default "16" if NR_CPUS_DEFAULT_16 1977 default "32" if NR_CPUS_DEFAULT_32 1978 default "64" if NR_CPUS_DEFAULT_64 1979 help 1980 This allows you to specify the maximum number of CPUs which this 1981 kernel will support. The maximum supported value is 32 for 32-bit 1982 kernel and 64 for 64-bit kernels; the minimum value which makes 1983 sense is 1 for Qemu (useful only for kernel debugging purposes) 1984 and 2 for all others. 1985 1986 This is purely to save memory - each supported CPU adds 1987 approximately eight kilobytes to the kernel image. For best 1988 performance should round up your number of processors to the next 1989 power of two. 1990 1991source "kernel/time/Kconfig" 1992 1993# 1994# Timer Interrupt Frequency Configuration 1995# 1996 1997choice 1998 prompt "Timer frequency" 1999 default HZ_250 2000 help 2001 Allows the configuration of the timer frequency. 2002 2003 config HZ_48 2004 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2005 2006 config HZ_100 2007 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2008 2009 config HZ_128 2010 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2011 2012 config HZ_250 2013 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2014 2015 config HZ_256 2016 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2017 2018 config HZ_1000 2019 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2020 2021 config HZ_1024 2022 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2023 2024endchoice 2025 2026config SYS_SUPPORTS_48HZ 2027 bool 2028 2029config SYS_SUPPORTS_100HZ 2030 bool 2031 2032config SYS_SUPPORTS_128HZ 2033 bool 2034 2035config SYS_SUPPORTS_250HZ 2036 bool 2037 2038config SYS_SUPPORTS_256HZ 2039 bool 2040 2041config SYS_SUPPORTS_1000HZ 2042 bool 2043 2044config SYS_SUPPORTS_1024HZ 2045 bool 2046 2047config SYS_SUPPORTS_ARBIT_HZ 2048 bool 2049 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2050 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2051 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2052 !SYS_SUPPORTS_1024HZ 2053 2054config HZ 2055 int 2056 default 48 if HZ_48 2057 default 100 if HZ_100 2058 default 128 if HZ_128 2059 default 250 if HZ_250 2060 default 256 if HZ_256 2061 default 1000 if HZ_1000 2062 default 1024 if HZ_1024 2063 2064source "kernel/Kconfig.preempt" 2065 2066config MIPS_INSANE_LARGE 2067 bool "Support for large 64-bit configurations" 2068 depends on CPU_R10000 && 64BIT 2069 help 2070 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 2071 previous 64-bit processors which only supported 40 bit / 1TB. If you 2072 need processes of more than 1TB virtual address space, say Y here. 2073 This will result in additional memory usage, so it is not 2074 recommended for normal users. 2075 2076config KEXEC 2077 bool "Kexec system call (EXPERIMENTAL)" 2078 depends on EXPERIMENTAL 2079 help 2080 kexec is a system call that implements the ability to shutdown your 2081 current kernel, and to start another kernel. It is like a reboot 2082 but it is independent of the system firmware. And like a reboot 2083 you can start any kernel with it, not just Linux. 2084 2085 The name comes from the similarity to the exec system call. 2086 2087 It is an ongoing process to be certain the hardware in a machine 2088 is properly shutdown, so do not be surprised if this code does not 2089 initially work for you. It may help to enable device hotplugging 2090 support. As of this writing the exact hardware interface is 2091 strongly in flux, so no good recommendation can be made. 2092 2093config SECCOMP 2094 bool "Enable seccomp to safely compute untrusted bytecode" 2095 depends on PROC_FS 2096 default y 2097 help 2098 This kernel feature is useful for number crunching applications 2099 that may need to compute untrusted bytecode during their 2100 execution. By using pipes or other transports made available to 2101 the process as file descriptors supporting the read/write 2102 syscalls, it's possible to isolate those applications in 2103 their own address space using seccomp. Once seccomp is 2104 enabled via /proc/<pid>/seccomp, it cannot be disabled 2105 and the task is only allowed to execute a few safe syscalls 2106 defined by each seccomp mode. 2107 2108 If unsure, say Y. Only embedded should say N here. 2109 2110endmenu 2111 2112config LOCKDEP_SUPPORT 2113 bool 2114 default y 2115 2116config STACKTRACE_SUPPORT 2117 bool 2118 default y 2119 2120source "init/Kconfig" 2121 2122source "kernel/Kconfig.freezer" 2123 2124menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2125 2126config HW_HAS_EISA 2127 bool 2128config HW_HAS_PCI 2129 bool 2130 2131config PCI 2132 bool "Support for PCI controller" 2133 depends on HW_HAS_PCI 2134 select PCI_DOMAINS 2135 help 2136 Find out whether you have a PCI motherboard. PCI is the name of a 2137 bus system, i.e. the way the CPU talks to the other stuff inside 2138 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2139 say Y, otherwise N. 2140 2141config PCI_DOMAINS 2142 bool 2143 2144source "drivers/pci/Kconfig" 2145 2146# 2147# ISA support is now enabled via select. Too many systems still have the one 2148# or other ISA chip on the board that users don't know about so don't expect 2149# users to choose the right thing ... 2150# 2151config ISA 2152 bool 2153 2154config EISA 2155 bool "EISA support" 2156 depends on HW_HAS_EISA 2157 select ISA 2158 select GENERIC_ISA_DMA 2159 ---help--- 2160 The Extended Industry Standard Architecture (EISA) bus was 2161 developed as an open alternative to the IBM MicroChannel bus. 2162 2163 The EISA bus provided some of the features of the IBM MicroChannel 2164 bus while maintaining backward compatibility with cards made for 2165 the older ISA bus. The EISA bus saw limited use between 1988 and 2166 1995 when it was made obsolete by the PCI bus. 2167 2168 Say Y here if you are building a kernel for an EISA-based machine. 2169 2170 Otherwise, say N. 2171 2172source "drivers/eisa/Kconfig" 2173 2174config TC 2175 bool "TURBOchannel support" 2176 depends on MACH_DECSTATION 2177 help 2178 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2179 processors. Documentation on writing device drivers for TurboChannel 2180 is available at: 2181 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>. 2182 2183#config ACCESSBUS 2184# bool "Access.Bus support" 2185# depends on TC 2186 2187config MMU 2188 bool 2189 default y 2190 2191config I8253 2192 bool 2193 select MIPS_EXTERNAL_TIMER 2194 2195config ZONE_DMA32 2196 bool 2197 2198source "drivers/pcmcia/Kconfig" 2199 2200source "drivers/pci/hotplug/Kconfig" 2201 2202endmenu 2203 2204menu "Executable file formats" 2205 2206source "fs/Kconfig.binfmt" 2207 2208config TRAD_SIGNALS 2209 bool 2210 2211config MIPS32_COMPAT 2212 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2213 depends on 64BIT 2214 help 2215 Select this option if you want Linux/MIPS 32-bit binary 2216 compatibility. Since all software available for Linux/MIPS is 2217 currently 32-bit you should say Y here. 2218 2219config COMPAT 2220 bool 2221 depends on MIPS32_COMPAT 2222 default y 2223 2224config SYSVIPC_COMPAT 2225 bool 2226 depends on COMPAT && SYSVIPC 2227 default y 2228 2229config MIPS32_O32 2230 bool "Kernel support for o32 binaries" 2231 depends on MIPS32_COMPAT 2232 help 2233 Select this option if you want to run o32 binaries. These are pure 2234 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2235 existing binaries are in this format. 2236 2237 If unsure, say Y. 2238 2239config MIPS32_N32 2240 bool "Kernel support for n32 binaries" 2241 depends on MIPS32_COMPAT 2242 help 2243 Select this option if you want to run n32 binaries. These are 2244 64-bit binaries using 32-bit quantities for addressing and certain 2245 data that would normally be 64-bit. They are used in special 2246 cases. 2247 2248 If unsure, say N. 2249 2250config BINFMT_ELF32 2251 bool 2252 default y if MIPS32_O32 || MIPS32_N32 2253 2254endmenu 2255 2256menu "Power management options" 2257 2258config ARCH_HIBERNATION_POSSIBLE 2259 def_bool y 2260 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2261 2262config ARCH_SUSPEND_POSSIBLE 2263 def_bool y 2264 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2265 2266source "kernel/power/Kconfig" 2267 2268endmenu 2269 2270source "arch/mips/kernel/cpufreq/Kconfig" 2271 2272source "net/Kconfig" 2273 2274source "drivers/Kconfig" 2275 2276source "fs/Kconfig" 2277 2278source "arch/mips/Kconfig.debug" 2279 2280source "security/Kconfig" 2281 2282source "crypto/Kconfig" 2283 2284source "lib/Kconfig" 2285