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 select GENERIC_GPIO 1079 select ARCH_REQUIRE_GPIOLIB 1080 help 1081 The Loongson 2F processor implements the MIPS III instruction set 1082 with many extensions. 1083 1084 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1085 have a similar programming interface with FPGA northbridge used in 1086 Loongson2E. 1087 1088config CPU_MIPS32_R1 1089 bool "MIPS32 Release 1" 1090 depends on SYS_HAS_CPU_MIPS32_R1 1091 select CPU_HAS_PREFETCH 1092 select CPU_SUPPORTS_32BIT_KERNEL 1093 select CPU_SUPPORTS_HIGHMEM 1094 help 1095 Choose this option to build a kernel for release 1 or later of the 1096 MIPS32 architecture. Most modern embedded systems with a 32-bit 1097 MIPS processor are based on a MIPS32 processor. If you know the 1098 specific type of processor in your system, choose those that one 1099 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1100 Release 2 of the MIPS32 architecture is available since several 1101 years so chances are you even have a MIPS32 Release 2 processor 1102 in which case you should choose CPU_MIPS32_R2 instead for better 1103 performance. 1104 1105config CPU_MIPS32_R2 1106 bool "MIPS32 Release 2" 1107 depends on SYS_HAS_CPU_MIPS32_R2 1108 select CPU_HAS_PREFETCH 1109 select CPU_SUPPORTS_32BIT_KERNEL 1110 select CPU_SUPPORTS_HIGHMEM 1111 help 1112 Choose this option to build a kernel for release 2 or later of the 1113 MIPS32 architecture. Most modern embedded systems with a 32-bit 1114 MIPS processor are based on a MIPS32 processor. If you know the 1115 specific type of processor in your system, choose those that one 1116 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1117 1118config CPU_MIPS64_R1 1119 bool "MIPS64 Release 1" 1120 depends on SYS_HAS_CPU_MIPS64_R1 1121 select CPU_HAS_PREFETCH 1122 select CPU_SUPPORTS_32BIT_KERNEL 1123 select CPU_SUPPORTS_64BIT_KERNEL 1124 select CPU_SUPPORTS_HIGHMEM 1125 select CPU_SUPPORTS_HUGEPAGES 1126 help 1127 Choose this option to build a kernel for release 1 or later of the 1128 MIPS64 architecture. Many modern embedded systems with a 64-bit 1129 MIPS processor are based on a MIPS64 processor. If you know the 1130 specific type of processor in your system, choose those that one 1131 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1132 Release 2 of the MIPS64 architecture is available since several 1133 years so chances are you even have a MIPS64 Release 2 processor 1134 in which case you should choose CPU_MIPS64_R2 instead for better 1135 performance. 1136 1137config CPU_MIPS64_R2 1138 bool "MIPS64 Release 2" 1139 depends on SYS_HAS_CPU_MIPS64_R2 1140 select CPU_HAS_PREFETCH 1141 select CPU_SUPPORTS_32BIT_KERNEL 1142 select CPU_SUPPORTS_64BIT_KERNEL 1143 select CPU_SUPPORTS_HIGHMEM 1144 select CPU_SUPPORTS_HUGEPAGES 1145 help 1146 Choose this option to build a kernel for release 2 or later of the 1147 MIPS64 architecture. Many modern embedded systems with a 64-bit 1148 MIPS processor are based on a MIPS64 processor. If you know the 1149 specific type of processor in your system, choose those that one 1150 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1151 1152config CPU_R3000 1153 bool "R3000" 1154 depends on SYS_HAS_CPU_R3000 1155 select CPU_HAS_WB 1156 select CPU_SUPPORTS_32BIT_KERNEL 1157 select CPU_SUPPORTS_HIGHMEM 1158 help 1159 Please make sure to pick the right CPU type. Linux/MIPS is not 1160 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1161 *not* work on R4000 machines and vice versa. However, since most 1162 of the supported machines have an R4000 (or similar) CPU, R4x00 1163 might be a safe bet. If the resulting kernel does not work, 1164 try to recompile with R3000. 1165 1166config CPU_TX39XX 1167 bool "R39XX" 1168 depends on SYS_HAS_CPU_TX39XX 1169 select CPU_SUPPORTS_32BIT_KERNEL 1170 1171config CPU_VR41XX 1172 bool "R41xx" 1173 depends on SYS_HAS_CPU_VR41XX 1174 select CPU_SUPPORTS_32BIT_KERNEL 1175 select CPU_SUPPORTS_64BIT_KERNEL 1176 help 1177 The options selects support for the NEC VR4100 series of processors. 1178 Only choose this option if you have one of these processors as a 1179 kernel built with this option will not run on any other type of 1180 processor or vice versa. 1181 1182config CPU_R4300 1183 bool "R4300" 1184 depends on SYS_HAS_CPU_R4300 1185 select CPU_SUPPORTS_32BIT_KERNEL 1186 select CPU_SUPPORTS_64BIT_KERNEL 1187 help 1188 MIPS Technologies R4300-series processors. 1189 1190config CPU_R4X00 1191 bool "R4x00" 1192 depends on SYS_HAS_CPU_R4X00 1193 select CPU_SUPPORTS_32BIT_KERNEL 1194 select CPU_SUPPORTS_64BIT_KERNEL 1195 help 1196 MIPS Technologies R4000-series processors other than 4300, including 1197 the R4000, R4400, R4600, and 4700. 1198 1199config CPU_TX49XX 1200 bool "R49XX" 1201 depends on SYS_HAS_CPU_TX49XX 1202 select CPU_HAS_PREFETCH 1203 select CPU_SUPPORTS_32BIT_KERNEL 1204 select CPU_SUPPORTS_64BIT_KERNEL 1205 1206config CPU_R5000 1207 bool "R5000" 1208 depends on SYS_HAS_CPU_R5000 1209 select CPU_SUPPORTS_32BIT_KERNEL 1210 select CPU_SUPPORTS_64BIT_KERNEL 1211 help 1212 MIPS Technologies R5000-series processors other than the Nevada. 1213 1214config CPU_R5432 1215 bool "R5432" 1216 depends on SYS_HAS_CPU_R5432 1217 select CPU_SUPPORTS_32BIT_KERNEL 1218 select CPU_SUPPORTS_64BIT_KERNEL 1219 1220config CPU_R5500 1221 bool "R5500" 1222 depends on SYS_HAS_CPU_R5500 1223 select CPU_SUPPORTS_32BIT_KERNEL 1224 select CPU_SUPPORTS_64BIT_KERNEL 1225 select CPU_SUPPORTS_HUGEPAGES 1226 help 1227 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1228 instruction set. 1229 1230config CPU_R6000 1231 bool "R6000" 1232 depends on EXPERIMENTAL 1233 depends on SYS_HAS_CPU_R6000 1234 select CPU_SUPPORTS_32BIT_KERNEL 1235 help 1236 MIPS Technologies R6000 and R6000A series processors. Note these 1237 processors are extremely rare and the support for them is incomplete. 1238 1239config CPU_NEVADA 1240 bool "RM52xx" 1241 depends on SYS_HAS_CPU_NEVADA 1242 select CPU_SUPPORTS_32BIT_KERNEL 1243 select CPU_SUPPORTS_64BIT_KERNEL 1244 help 1245 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1246 1247config CPU_R8000 1248 bool "R8000" 1249 depends on EXPERIMENTAL 1250 depends on SYS_HAS_CPU_R8000 1251 select CPU_HAS_PREFETCH 1252 select CPU_SUPPORTS_64BIT_KERNEL 1253 help 1254 MIPS Technologies R8000 processors. Note these processors are 1255 uncommon and the support for them is incomplete. 1256 1257config CPU_R10000 1258 bool "R10000" 1259 depends on SYS_HAS_CPU_R10000 1260 select CPU_HAS_PREFETCH 1261 select CPU_SUPPORTS_32BIT_KERNEL 1262 select CPU_SUPPORTS_64BIT_KERNEL 1263 select CPU_SUPPORTS_HIGHMEM 1264 help 1265 MIPS Technologies R10000-series processors. 1266 1267config CPU_RM7000 1268 bool "RM7000" 1269 depends on SYS_HAS_CPU_RM7000 1270 select CPU_HAS_PREFETCH 1271 select CPU_SUPPORTS_32BIT_KERNEL 1272 select CPU_SUPPORTS_64BIT_KERNEL 1273 select CPU_SUPPORTS_HIGHMEM 1274 1275config CPU_RM9000 1276 bool "RM9000" 1277 depends on SYS_HAS_CPU_RM9000 1278 select CPU_HAS_PREFETCH 1279 select CPU_SUPPORTS_32BIT_KERNEL 1280 select CPU_SUPPORTS_64BIT_KERNEL 1281 select CPU_SUPPORTS_HIGHMEM 1282 select WEAK_ORDERING 1283 1284config CPU_SB1 1285 bool "SB1" 1286 depends on SYS_HAS_CPU_SB1 1287 select CPU_SUPPORTS_32BIT_KERNEL 1288 select CPU_SUPPORTS_64BIT_KERNEL 1289 select CPU_SUPPORTS_HIGHMEM 1290 select WEAK_ORDERING 1291 1292config CPU_CAVIUM_OCTEON 1293 bool "Cavium Octeon processor" 1294 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1295 select IRQ_CPU 1296 select IRQ_CPU_OCTEON 1297 select CPU_HAS_PREFETCH 1298 select CPU_SUPPORTS_64BIT_KERNEL 1299 select SYS_SUPPORTS_SMP 1300 select NR_CPUS_DEFAULT_16 1301 select WEAK_ORDERING 1302 select CPU_SUPPORTS_HIGHMEM 1303 select CPU_SUPPORTS_HUGEPAGES 1304 help 1305 The Cavium Octeon processor is a highly integrated chip containing 1306 many ethernet hardware widgets for networking tasks. The processor 1307 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1308 Full details can be found at http://www.caviumnetworks.com. 1309 1310endchoice 1311 1312if CPU_LOONGSON2F 1313config CPU_NOP_WORKAROUNDS 1314 bool 1315 1316config CPU_JUMP_WORKAROUNDS 1317 bool 1318 1319config CPU_LOONGSON2F_WORKAROUNDS 1320 bool "Loongson 2F Workarounds" 1321 default y 1322 select CPU_NOP_WORKAROUNDS 1323 select CPU_JUMP_WORKAROUNDS 1324 help 1325 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1326 require workarounds. Without workarounds the system may hang 1327 unexpectedly. For more information please refer to the gas 1328 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1329 1330 Loongson 2F03 and later have fixed these issues and no workarounds 1331 are needed. The workarounds have no significant side effect on them 1332 but may decrease the performance of the system so this option should 1333 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1334 systems. 1335 1336 If unsure, please say Y. 1337endif # CPU_LOONGSON2F 1338 1339config SYS_SUPPORTS_ZBOOT 1340 bool 1341 select HAVE_KERNEL_GZIP 1342 select HAVE_KERNEL_BZIP2 1343 select HAVE_KERNEL_LZMA 1344 select HAVE_KERNEL_LZO 1345 1346config SYS_SUPPORTS_ZBOOT_UART16550 1347 bool 1348 select SYS_SUPPORTS_ZBOOT 1349 1350config CPU_LOONGSON2 1351 bool 1352 select CPU_SUPPORTS_32BIT_KERNEL 1353 select CPU_SUPPORTS_64BIT_KERNEL 1354 select CPU_SUPPORTS_HIGHMEM 1355 1356config SYS_HAS_CPU_LOONGSON2E 1357 bool 1358 1359config SYS_HAS_CPU_LOONGSON2F 1360 bool 1361 select CPU_SUPPORTS_CPUFREQ 1362 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1363 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1364 1365config SYS_HAS_CPU_MIPS32_R1 1366 bool 1367 1368config SYS_HAS_CPU_MIPS32_R2 1369 bool 1370 1371config SYS_HAS_CPU_MIPS64_R1 1372 bool 1373 1374config SYS_HAS_CPU_MIPS64_R2 1375 bool 1376 1377config SYS_HAS_CPU_R3000 1378 bool 1379 1380config SYS_HAS_CPU_TX39XX 1381 bool 1382 1383config SYS_HAS_CPU_VR41XX 1384 bool 1385 1386config SYS_HAS_CPU_R4300 1387 bool 1388 1389config SYS_HAS_CPU_R4X00 1390 bool 1391 1392config SYS_HAS_CPU_TX49XX 1393 bool 1394 1395config SYS_HAS_CPU_R5000 1396 bool 1397 1398config SYS_HAS_CPU_R5432 1399 bool 1400 1401config SYS_HAS_CPU_R5500 1402 bool 1403 1404config SYS_HAS_CPU_R6000 1405 bool 1406 1407config SYS_HAS_CPU_NEVADA 1408 bool 1409 1410config SYS_HAS_CPU_R8000 1411 bool 1412 1413config SYS_HAS_CPU_R10000 1414 bool 1415 1416config SYS_HAS_CPU_RM7000 1417 bool 1418 1419config SYS_HAS_CPU_RM9000 1420 bool 1421 1422config SYS_HAS_CPU_SB1 1423 bool 1424 1425config SYS_HAS_CPU_CAVIUM_OCTEON 1426 bool 1427 1428# 1429# CPU may reorder R->R, R->W, W->R, W->W 1430# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1431# 1432config WEAK_ORDERING 1433 bool 1434 1435# 1436# CPU may reorder reads and writes beyond LL/SC 1437# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1438# 1439config WEAK_REORDERING_BEYOND_LLSC 1440 bool 1441endmenu 1442 1443# 1444# These two indicate any level of the MIPS32 and MIPS64 architecture 1445# 1446config CPU_MIPS32 1447 bool 1448 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1449 1450config CPU_MIPS64 1451 bool 1452 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1453 1454# 1455# These two indicate the revision of the architecture, either Release 1 or Release 2 1456# 1457config CPU_MIPSR1 1458 bool 1459 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1460 1461config CPU_MIPSR2 1462 bool 1463 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1464 1465config SYS_SUPPORTS_32BIT_KERNEL 1466 bool 1467config SYS_SUPPORTS_64BIT_KERNEL 1468 bool 1469config CPU_SUPPORTS_32BIT_KERNEL 1470 bool 1471config CPU_SUPPORTS_64BIT_KERNEL 1472 bool 1473config CPU_SUPPORTS_CPUFREQ 1474 bool 1475config CPU_SUPPORTS_ADDRWINCFG 1476 bool 1477config CPU_SUPPORTS_HUGEPAGES 1478 bool 1479config CPU_SUPPORTS_UNCACHED_ACCELERATED 1480 bool 1481config MIPS_PGD_C0_CONTEXT 1482 bool 1483 default y if 64BIT && CPU_MIPSR2 1484 1485# 1486# Set to y for ptrace access to watch registers. 1487# 1488config HARDWARE_WATCHPOINTS 1489 bool 1490 default y if CPU_MIPSR1 || CPU_MIPSR2 1491 1492menu "Kernel type" 1493 1494choice 1495 1496 prompt "Kernel code model" 1497 help 1498 You should only select this option if you have a workload that 1499 actually benefits from 64-bit processing or if your machine has 1500 large memory. You will only be presented a single option in this 1501 menu if your system does not support both 32-bit and 64-bit kernels. 1502 1503config 32BIT 1504 bool "32-bit kernel" 1505 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1506 select TRAD_SIGNALS 1507 help 1508 Select this option if you want to build a 32-bit kernel. 1509config 64BIT 1510 bool "64-bit kernel" 1511 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1512 select HAVE_SYSCALL_WRAPPERS 1513 help 1514 Select this option if you want to build a 64-bit kernel. 1515 1516endchoice 1517 1518choice 1519 prompt "Kernel page size" 1520 default PAGE_SIZE_4KB 1521 1522config PAGE_SIZE_4KB 1523 bool "4kB" 1524 depends on !CPU_LOONGSON2 1525 help 1526 This option select the standard 4kB Linux page size. On some 1527 R3000-family processors this is the only available page size. Using 1528 4kB page size will minimize memory consumption and is therefore 1529 recommended for low memory systems. 1530 1531config PAGE_SIZE_8KB 1532 bool "8kB" 1533 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1534 help 1535 Using 8kB page size will result in higher performance kernel at 1536 the price of higher memory consumption. This option is available 1537 only on R8000 and cnMIPS processors. Note that you will need a 1538 suitable Linux distribution to support this. 1539 1540config PAGE_SIZE_16KB 1541 bool "16kB" 1542 depends on !CPU_R3000 && !CPU_TX39XX 1543 help 1544 Using 16kB page size will result in higher performance kernel at 1545 the price of higher memory consumption. This option is available on 1546 all non-R3000 family processors. Note that you will need a suitable 1547 Linux distribution to support this. 1548 1549config PAGE_SIZE_32KB 1550 bool "32kB" 1551 depends on CPU_CAVIUM_OCTEON 1552 help 1553 Using 32kB page size will result in higher performance kernel at 1554 the price of higher memory consumption. This option is available 1555 only on cnMIPS cores. Note that you will need a suitable Linux 1556 distribution to support this. 1557 1558config PAGE_SIZE_64KB 1559 bool "64kB" 1560 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1561 help 1562 Using 64kB page size will result in higher performance kernel at 1563 the price of higher memory consumption. This option is available on 1564 all non-R3000 family processor. Not that at the time of this 1565 writing this option is still high experimental. 1566 1567endchoice 1568 1569config BOARD_SCACHE 1570 bool 1571 1572config IP22_CPU_SCACHE 1573 bool 1574 select BOARD_SCACHE 1575 1576# 1577# Support for a MIPS32 / MIPS64 style S-caches 1578# 1579config MIPS_CPU_SCACHE 1580 bool 1581 select BOARD_SCACHE 1582 1583config R5000_CPU_SCACHE 1584 bool 1585 select BOARD_SCACHE 1586 1587config RM7000_CPU_SCACHE 1588 bool 1589 select BOARD_SCACHE 1590 1591config SIBYTE_DMA_PAGEOPS 1592 bool "Use DMA to clear/copy pages" 1593 depends on CPU_SB1 1594 help 1595 Instead of using the CPU to zero and copy pages, use a Data Mover 1596 channel. These DMA channels are otherwise unused by the standard 1597 SiByte Linux port. Seems to give a small performance benefit. 1598 1599config CPU_HAS_PREFETCH 1600 bool 1601 1602choice 1603 prompt "MIPS MT options" 1604 1605config MIPS_MT_DISABLED 1606 bool "Disable multithreading support." 1607 help 1608 Use this option if your workload can't take advantage of 1609 MIPS hardware multithreading support. On systems that don't have 1610 the option of an MT-enabled processor this option will be the only 1611 option in this menu. 1612 1613config MIPS_MT_SMP 1614 bool "Use 1 TC on each available VPE for SMP" 1615 depends on SYS_SUPPORTS_MULTITHREADING 1616 select CPU_MIPSR2_IRQ_VI 1617 select CPU_MIPSR2_IRQ_EI 1618 select MIPS_MT 1619 select NR_CPUS_DEFAULT_2 1620 select SMP 1621 select SYS_SUPPORTS_SCHED_SMT if SMP 1622 select SYS_SUPPORTS_SMP 1623 select SMP_UP 1624 help 1625 This is a kernel model which is also known a VSMP or lately 1626 has been marketesed into SMVP. 1627 1628config MIPS_MT_SMTC 1629 bool "SMTC: Use all TCs on all VPEs for SMP" 1630 depends on CPU_MIPS32_R2 1631 #depends on CPU_MIPS64_R2 # once there is hardware ... 1632 depends on SYS_SUPPORTS_MULTITHREADING 1633 select CPU_MIPSR2_IRQ_VI 1634 select CPU_MIPSR2_IRQ_EI 1635 select MIPS_MT 1636 select NR_CPUS_DEFAULT_8 1637 select SMP 1638 select SYS_SUPPORTS_SMP 1639 select SMP_UP 1640 help 1641 This is a kernel model which is known a SMTC or lately has been 1642 marketesed into SMVP. 1643 1644endchoice 1645 1646config MIPS_MT 1647 bool 1648 1649config SCHED_SMT 1650 bool "SMT (multithreading) scheduler support" 1651 depends on SYS_SUPPORTS_SCHED_SMT 1652 default n 1653 help 1654 SMT scheduler support improves the CPU scheduler's decision making 1655 when dealing with MIPS MT enabled cores at a cost of slightly 1656 increased overhead in some places. If unsure say N here. 1657 1658config SYS_SUPPORTS_SCHED_SMT 1659 bool 1660 1661 1662config SYS_SUPPORTS_MULTITHREADING 1663 bool 1664 1665config MIPS_MT_FPAFF 1666 bool "Dynamic FPU affinity for FP-intensive threads" 1667 default y 1668 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1669 1670config MIPS_VPE_LOADER 1671 bool "VPE loader support." 1672 depends on SYS_SUPPORTS_MULTITHREADING 1673 select CPU_MIPSR2_IRQ_VI 1674 select CPU_MIPSR2_IRQ_EI 1675 select MIPS_MT 1676 help 1677 Includes a loader for loading an elf relocatable object 1678 onto another VPE and running it. 1679 1680config MIPS_MT_SMTC_IM_BACKSTOP 1681 bool "Use per-TC register bits as backstop for inhibited IM bits" 1682 depends on MIPS_MT_SMTC 1683 default n 1684 help 1685 To support multiple TC microthreads acting as "CPUs" within 1686 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1687 during interrupt handling. To support legacy drivers and interrupt 1688 controller management code, SMTC has a "backstop" to track and 1689 if necessary restore the interrupt mask. This has some performance 1690 impact on interrupt service overhead. 1691 1692config MIPS_MT_SMTC_IRQAFF 1693 bool "Support IRQ affinity API" 1694 depends on MIPS_MT_SMTC 1695 default n 1696 help 1697 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1698 for SMTC Linux kernel. Requires platform support, of which 1699 an example can be found in the MIPS kernel i8259 and Malta 1700 platform code. Adds some overhead to interrupt dispatch, and 1701 should be used only if you know what you are doing. 1702 1703config MIPS_VPE_LOADER_TOM 1704 bool "Load VPE program into memory hidden from linux" 1705 depends on MIPS_VPE_LOADER 1706 default y 1707 help 1708 The loader can use memory that is present but has been hidden from 1709 Linux using the kernel command line option "mem=xxMB". It's up to 1710 you to ensure the amount you put in the option and the space your 1711 program requires is less or equal to the amount physically present. 1712 1713# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1714config MIPS_VPE_APSP_API 1715 bool "Enable support for AP/SP API (RTLX)" 1716 depends on MIPS_VPE_LOADER 1717 help 1718 1719config MIPS_APSP_KSPD 1720 bool "Enable KSPD" 1721 depends on MIPS_VPE_APSP_API 1722 default y 1723 help 1724 KSPD is a kernel daemon that accepts syscall requests from the SP 1725 side, actions them and returns the results. It also handles the 1726 "exit" syscall notifying other kernel modules the SP program is 1727 exiting. You probably want to say yes here. 1728 1729config MIPS_CMP 1730 bool "MIPS CMP framework support" 1731 depends on SYS_SUPPORTS_MIPS_CMP 1732 select SYNC_R4K 1733 select SYS_SUPPORTS_SMP 1734 select SYS_SUPPORTS_SCHED_SMT if SMP 1735 select WEAK_ORDERING 1736 default n 1737 help 1738 This is a placeholder option for the GCMP work. It will need to 1739 be handled differently... 1740 1741config SB1_PASS_1_WORKAROUNDS 1742 bool 1743 depends on CPU_SB1_PASS_1 1744 default y 1745 1746config SB1_PASS_2_WORKAROUNDS 1747 bool 1748 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1749 default y 1750 1751config SB1_PASS_2_1_WORKAROUNDS 1752 bool 1753 depends on CPU_SB1 && CPU_SB1_PASS_2 1754 default y 1755 1756config 64BIT_PHYS_ADDR 1757 bool 1758 1759config ARCH_PHYS_ADDR_T_64BIT 1760 def_bool 64BIT_PHYS_ADDR 1761 1762config CPU_HAS_SMARTMIPS 1763 depends on SYS_SUPPORTS_SMARTMIPS 1764 bool "Support for the SmartMIPS ASE" 1765 help 1766 SmartMIPS is a extension of the MIPS32 architecture aimed at 1767 increased security at both hardware and software level for 1768 smartcards. Enabling this option will allow proper use of the 1769 SmartMIPS instructions by Linux applications. However a kernel with 1770 this option will not work on a MIPS core without SmartMIPS core. If 1771 you don't know you probably don't have SmartMIPS and should say N 1772 here. 1773 1774config CPU_HAS_WB 1775 bool 1776 1777# 1778# Vectored interrupt mode is an R2 feature 1779# 1780config CPU_MIPSR2_IRQ_VI 1781 bool 1782 1783# 1784# Extended interrupt mode is an R2 feature 1785# 1786config CPU_MIPSR2_IRQ_EI 1787 bool 1788 1789config CPU_HAS_SYNC 1790 bool 1791 depends on !CPU_R3000 1792 default y 1793 1794config GENERIC_CLOCKEVENTS_BROADCAST 1795 bool 1796 1797# 1798# CPU non-features 1799# 1800config CPU_DADDI_WORKAROUNDS 1801 bool 1802 1803config CPU_R4000_WORKAROUNDS 1804 bool 1805 select CPU_R4400_WORKAROUNDS 1806 1807config CPU_R4400_WORKAROUNDS 1808 bool 1809 1810# 1811# Use the generic interrupt handling code in kernel/irq/: 1812# 1813config GENERIC_HARDIRQS 1814 bool 1815 default y 1816 1817config GENERIC_IRQ_PROBE 1818 bool 1819 default y 1820 1821config IRQ_PER_CPU 1822 bool 1823 1824# 1825# - Highmem only makes sense for the 32-bit kernel. 1826# - The current highmem code will only work properly on physically indexed 1827# caches such as R3000, SB1, R7000 or those that look like they're virtually 1828# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1829# moment we protect the user and offer the highmem option only on machines 1830# where it's known to be safe. This will not offer highmem on a few systems 1831# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1832# indexed CPUs but we're playing safe. 1833# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 1834# know they might have memory configurations that could make use of highmem 1835# support. 1836# 1837config HIGHMEM 1838 bool "High Memory Support" 1839 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 1840 1841config CPU_SUPPORTS_HIGHMEM 1842 bool 1843 1844config SYS_SUPPORTS_HIGHMEM 1845 bool 1846 1847config SYS_SUPPORTS_SMARTMIPS 1848 bool 1849 1850config ARCH_FLATMEM_ENABLE 1851 def_bool y 1852 depends on !NUMA && !CPU_LOONGSON2 1853 1854config ARCH_DISCONTIGMEM_ENABLE 1855 bool 1856 default y if SGI_IP27 1857 help 1858 Say Y to support efficient handling of discontiguous physical memory, 1859 for architectures which are either NUMA (Non-Uniform Memory Access) 1860 or have huge holes in the physical address space for other reasons. 1861 See <file:Documentation/vm/numa> for more. 1862 1863config ARCH_POPULATES_NODE_MAP 1864 def_bool y 1865 1866config ARCH_SPARSEMEM_ENABLE 1867 bool 1868 select SPARSEMEM_STATIC 1869 1870config NUMA 1871 bool "NUMA Support" 1872 depends on SYS_SUPPORTS_NUMA 1873 help 1874 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 1875 Access). This option improves performance on systems with more 1876 than two nodes; on two node systems it is generally better to 1877 leave it disabled; on single node systems disable this option 1878 disabled. 1879 1880config SYS_SUPPORTS_NUMA 1881 bool 1882 1883config NODES_SHIFT 1884 int 1885 default "6" 1886 depends on NEED_MULTIPLE_NODES 1887 1888source "mm/Kconfig" 1889 1890config SMP 1891 bool "Multi-Processing support" 1892 depends on SYS_SUPPORTS_SMP 1893 select IRQ_PER_CPU 1894 select USE_GENERIC_SMP_HELPERS 1895 help 1896 This enables support for systems with more than one CPU. If you have 1897 a system with only one CPU, like most personal computers, say N. If 1898 you have a system with more than one CPU, say Y. 1899 1900 If you say N here, the kernel will run on single and multiprocessor 1901 machines, but will use only one CPU of a multiprocessor machine. If 1902 you say Y here, the kernel will run on many, but not all, 1903 singleprocessor machines. On a singleprocessor machine, the kernel 1904 will run faster if you say N here. 1905 1906 People using multiprocessor machines who say Y here should also say 1907 Y to "Enhanced Real Time Clock Support", below. 1908 1909 See also the SMP-HOWTO available at 1910 <http://www.tldp.org/docs.html#howto>. 1911 1912 If you don't know what to do here, say N. 1913 1914config SMP_UP 1915 bool 1916 1917config SYS_SUPPORTS_MIPS_CMP 1918 bool 1919 1920config SYS_SUPPORTS_SMP 1921 bool 1922 1923config NR_CPUS_DEFAULT_1 1924 bool 1925 1926config NR_CPUS_DEFAULT_2 1927 bool 1928 1929config NR_CPUS_DEFAULT_4 1930 bool 1931 1932config NR_CPUS_DEFAULT_8 1933 bool 1934 1935config NR_CPUS_DEFAULT_16 1936 bool 1937 1938config NR_CPUS_DEFAULT_32 1939 bool 1940 1941config NR_CPUS_DEFAULT_64 1942 bool 1943 1944config NR_CPUS 1945 int "Maximum number of CPUs (2-64)" 1946 range 1 64 if NR_CPUS_DEFAULT_1 1947 depends on SMP 1948 default "1" if NR_CPUS_DEFAULT_1 1949 default "2" if NR_CPUS_DEFAULT_2 1950 default "4" if NR_CPUS_DEFAULT_4 1951 default "8" if NR_CPUS_DEFAULT_8 1952 default "16" if NR_CPUS_DEFAULT_16 1953 default "32" if NR_CPUS_DEFAULT_32 1954 default "64" if NR_CPUS_DEFAULT_64 1955 help 1956 This allows you to specify the maximum number of CPUs which this 1957 kernel will support. The maximum supported value is 32 for 32-bit 1958 kernel and 64 for 64-bit kernels; the minimum value which makes 1959 sense is 1 for Qemu (useful only for kernel debugging purposes) 1960 and 2 for all others. 1961 1962 This is purely to save memory - each supported CPU adds 1963 approximately eight kilobytes to the kernel image. For best 1964 performance should round up your number of processors to the next 1965 power of two. 1966 1967source "kernel/time/Kconfig" 1968 1969# 1970# Timer Interrupt Frequency Configuration 1971# 1972 1973choice 1974 prompt "Timer frequency" 1975 default HZ_250 1976 help 1977 Allows the configuration of the timer frequency. 1978 1979 config HZ_48 1980 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 1981 1982 config HZ_100 1983 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 1984 1985 config HZ_128 1986 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 1987 1988 config HZ_250 1989 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 1990 1991 config HZ_256 1992 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 1993 1994 config HZ_1000 1995 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 1996 1997 config HZ_1024 1998 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 1999 2000endchoice 2001 2002config SYS_SUPPORTS_48HZ 2003 bool 2004 2005config SYS_SUPPORTS_100HZ 2006 bool 2007 2008config SYS_SUPPORTS_128HZ 2009 bool 2010 2011config SYS_SUPPORTS_250HZ 2012 bool 2013 2014config SYS_SUPPORTS_256HZ 2015 bool 2016 2017config SYS_SUPPORTS_1000HZ 2018 bool 2019 2020config SYS_SUPPORTS_1024HZ 2021 bool 2022 2023config SYS_SUPPORTS_ARBIT_HZ 2024 bool 2025 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2026 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2027 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2028 !SYS_SUPPORTS_1024HZ 2029 2030config HZ 2031 int 2032 default 48 if HZ_48 2033 default 100 if HZ_100 2034 default 128 if HZ_128 2035 default 250 if HZ_250 2036 default 256 if HZ_256 2037 default 1000 if HZ_1000 2038 default 1024 if HZ_1024 2039 2040source "kernel/Kconfig.preempt" 2041 2042config MIPS_INSANE_LARGE 2043 bool "Support for large 64-bit configurations" 2044 depends on CPU_R10000 && 64BIT 2045 help 2046 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 2047 previous 64-bit processors which only supported 40 bit / 1TB. If you 2048 need processes of more than 1TB virtual address space, say Y here. 2049 This will result in additional memory usage, so it is not 2050 recommended for normal users. 2051 2052config KEXEC 2053 bool "Kexec system call (EXPERIMENTAL)" 2054 depends on EXPERIMENTAL 2055 help 2056 kexec is a system call that implements the ability to shutdown your 2057 current kernel, and to start another kernel. It is like a reboot 2058 but it is independent of the system firmware. And like a reboot 2059 you can start any kernel with it, not just Linux. 2060 2061 The name comes from the similarity to the exec system call. 2062 2063 It is an ongoing process to be certain the hardware in a machine 2064 is properly shutdown, so do not be surprised if this code does not 2065 initially work for you. It may help to enable device hotplugging 2066 support. As of this writing the exact hardware interface is 2067 strongly in flux, so no good recommendation can be made. 2068 2069config SECCOMP 2070 bool "Enable seccomp to safely compute untrusted bytecode" 2071 depends on PROC_FS 2072 default y 2073 help 2074 This kernel feature is useful for number crunching applications 2075 that may need to compute untrusted bytecode during their 2076 execution. By using pipes or other transports made available to 2077 the process as file descriptors supporting the read/write 2078 syscalls, it's possible to isolate those applications in 2079 their own address space using seccomp. Once seccomp is 2080 enabled via /proc/<pid>/seccomp, it cannot be disabled 2081 and the task is only allowed to execute a few safe syscalls 2082 defined by each seccomp mode. 2083 2084 If unsure, say Y. Only embedded should say N here. 2085 2086endmenu 2087 2088config LOCKDEP_SUPPORT 2089 bool 2090 default y 2091 2092config STACKTRACE_SUPPORT 2093 bool 2094 default y 2095 2096source "init/Kconfig" 2097 2098source "kernel/Kconfig.freezer" 2099 2100menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2101 2102config HW_HAS_EISA 2103 bool 2104config HW_HAS_PCI 2105 bool 2106 2107config PCI 2108 bool "Support for PCI controller" 2109 depends on HW_HAS_PCI 2110 select PCI_DOMAINS 2111 help 2112 Find out whether you have a PCI motherboard. PCI is the name of a 2113 bus system, i.e. the way the CPU talks to the other stuff inside 2114 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2115 say Y, otherwise N. 2116 2117config PCI_DOMAINS 2118 bool 2119 2120source "drivers/pci/Kconfig" 2121 2122# 2123# ISA support is now enabled via select. Too many systems still have the one 2124# or other ISA chip on the board that users don't know about so don't expect 2125# users to choose the right thing ... 2126# 2127config ISA 2128 bool 2129 2130config EISA 2131 bool "EISA support" 2132 depends on HW_HAS_EISA 2133 select ISA 2134 select GENERIC_ISA_DMA 2135 ---help--- 2136 The Extended Industry Standard Architecture (EISA) bus was 2137 developed as an open alternative to the IBM MicroChannel bus. 2138 2139 The EISA bus provided some of the features of the IBM MicroChannel 2140 bus while maintaining backward compatibility with cards made for 2141 the older ISA bus. The EISA bus saw limited use between 1988 and 2142 1995 when it was made obsolete by the PCI bus. 2143 2144 Say Y here if you are building a kernel for an EISA-based machine. 2145 2146 Otherwise, say N. 2147 2148source "drivers/eisa/Kconfig" 2149 2150config TC 2151 bool "TURBOchannel support" 2152 depends on MACH_DECSTATION 2153 help 2154 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2155 processors. Documentation on writing device drivers for TurboChannel 2156 is available at: 2157 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>. 2158 2159#config ACCESSBUS 2160# bool "Access.Bus support" 2161# depends on TC 2162 2163config MMU 2164 bool 2165 default y 2166 2167config I8253 2168 bool 2169 select MIPS_EXTERNAL_TIMER 2170 2171config ZONE_DMA32 2172 bool 2173 2174source "drivers/pcmcia/Kconfig" 2175 2176source "drivers/pci/hotplug/Kconfig" 2177 2178endmenu 2179 2180menu "Executable file formats" 2181 2182source "fs/Kconfig.binfmt" 2183 2184config TRAD_SIGNALS 2185 bool 2186 2187config MIPS32_COMPAT 2188 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2189 depends on 64BIT 2190 help 2191 Select this option if you want Linux/MIPS 32-bit binary 2192 compatibility. Since all software available for Linux/MIPS is 2193 currently 32-bit you should say Y here. 2194 2195config COMPAT 2196 bool 2197 depends on MIPS32_COMPAT 2198 default y 2199 2200config SYSVIPC_COMPAT 2201 bool 2202 depends on COMPAT && SYSVIPC 2203 default y 2204 2205config MIPS32_O32 2206 bool "Kernel support for o32 binaries" 2207 depends on MIPS32_COMPAT 2208 help 2209 Select this option if you want to run o32 binaries. These are pure 2210 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2211 existing binaries are in this format. 2212 2213 If unsure, say Y. 2214 2215config MIPS32_N32 2216 bool "Kernel support for n32 binaries" 2217 depends on MIPS32_COMPAT 2218 help 2219 Select this option if you want to run n32 binaries. These are 2220 64-bit binaries using 32-bit quantities for addressing and certain 2221 data that would normally be 64-bit. They are used in special 2222 cases. 2223 2224 If unsure, say N. 2225 2226config BINFMT_ELF32 2227 bool 2228 default y if MIPS32_O32 || MIPS32_N32 2229 2230endmenu 2231 2232menu "Power management options" 2233 2234config ARCH_HIBERNATION_POSSIBLE 2235 def_bool y 2236 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2237 2238config ARCH_SUSPEND_POSSIBLE 2239 def_bool y 2240 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2241 2242source "kernel/power/Kconfig" 2243 2244endmenu 2245 2246source "arch/mips/kernel/cpufreq/Kconfig" 2247 2248source "net/Kconfig" 2249 2250source "drivers/Kconfig" 2251 2252source "fs/Kconfig" 2253 2254source "arch/mips/Kconfig.debug" 2255 2256source "security/Kconfig" 2257 2258source "crypto/Kconfig" 2259 2260source "lib/Kconfig" 2261