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