1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_IRQ_WORK 8 select HAVE_PERF_EVENTS 9 select PERF_USE_VMALLOC 10 select HAVE_ARCH_KGDB 11 select HAVE_FUNCTION_TRACER 12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 13 select HAVE_DYNAMIC_FTRACE 14 select HAVE_FTRACE_MCOUNT_RECORD 15 select HAVE_C_RECORDMCOUNT 16 select HAVE_FUNCTION_GRAPH_TRACER 17 select HAVE_KPROBES 18 select HAVE_KRETPROBES 19 select RTC_LIB if !MACH_LOONGSON 20 select GENERIC_ATOMIC64 if !64BIT 21 select HAVE_DMA_ATTRS 22 select HAVE_DMA_API_DEBUG 23 select HAVE_GENERIC_HARDIRQS 24 select GENERIC_IRQ_PROBE 25 select GENERIC_IRQ_SHOW 26 select HAVE_ARCH_JUMP_LABEL 27 select IRQ_FORCED_THREADING 28 29menu "Machine selection" 30 31config ZONE_DMA 32 bool 33 34choice 35 prompt "System type" 36 default SGI_IP22 37 38config MIPS_ALCHEMY 39 bool "Alchemy processor based machines" 40 select 64BIT_PHYS_ADDR 41 select CEVT_R4K_LIB 42 select CSRC_R4K_LIB 43 select IRQ_CPU 44 select SYS_HAS_CPU_MIPS32_R1 45 select SYS_SUPPORTS_32BIT_KERNEL 46 select SYS_SUPPORTS_APM_EMULATION 47 select GENERIC_GPIO 48 select ARCH_WANT_OPTIONAL_GPIOLIB 49 select SYS_SUPPORTS_ZBOOT 50 51config AR7 52 bool "Texas Instruments AR7" 53 select BOOT_ELF32 54 select DMA_NONCOHERENT 55 select CEVT_R4K 56 select CSRC_R4K 57 select IRQ_CPU 58 select NO_EXCEPT_FILL 59 select SWAP_IO_SPACE 60 select SYS_HAS_CPU_MIPS32_R1 61 select SYS_HAS_EARLY_PRINTK 62 select SYS_SUPPORTS_32BIT_KERNEL 63 select SYS_SUPPORTS_LITTLE_ENDIAN 64 select SYS_SUPPORTS_ZBOOT_UART16550 65 select ARCH_REQUIRE_GPIOLIB 66 select GCD 67 select VLYNQ 68 help 69 Support for the Texas Instruments AR7 System-on-a-Chip 70 family: TNETD7100, 7200 and 7300. 71 72config ATH79 73 bool "Atheros AR71XX/AR724X/AR913X based boards" 74 select ARCH_REQUIRE_GPIOLIB 75 select BOOT_RAW 76 select CEVT_R4K 77 select CSRC_R4K 78 select DMA_NONCOHERENT 79 select IRQ_CPU 80 select MIPS_MACHINE 81 select SYS_HAS_CPU_MIPS32_R2 82 select SYS_HAS_EARLY_PRINTK 83 select SYS_SUPPORTS_32BIT_KERNEL 84 select SYS_SUPPORTS_BIG_ENDIAN 85 help 86 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 87 88config BCM47XX 89 bool "Broadcom BCM47XX based boards" 90 select CEVT_R4K 91 select CSRC_R4K 92 select DMA_NONCOHERENT 93 select HW_HAS_PCI 94 select IRQ_CPU 95 select SYS_SUPPORTS_32BIT_KERNEL 96 select SYS_SUPPORTS_LITTLE_ENDIAN 97 select GENERIC_GPIO 98 select SYS_HAS_EARLY_PRINTK 99 select CFE 100 help 101 Support for BCM47XX based boards 102 103config BCM63XX 104 bool "Broadcom BCM63XX based boards" 105 select CEVT_R4K 106 select CSRC_R4K 107 select DMA_NONCOHERENT 108 select IRQ_CPU 109 select SYS_HAS_CPU_MIPS32_R1 110 select SYS_SUPPORTS_32BIT_KERNEL 111 select SYS_SUPPORTS_BIG_ENDIAN 112 select SYS_HAS_EARLY_PRINTK 113 select SWAP_IO_SPACE 114 select ARCH_REQUIRE_GPIOLIB 115 help 116 Support for BCM63XX based boards 117 118config MIPS_COBALT 119 bool "Cobalt Server" 120 select CEVT_R4K 121 select CSRC_R4K 122 select CEVT_GT641XX 123 select DMA_NONCOHERENT 124 select HW_HAS_PCI 125 select I8253 126 select I8259 127 select IRQ_CPU 128 select IRQ_GT641XX 129 select PCI_GT64XXX_PCI0 130 select PCI 131 select SYS_HAS_CPU_NEVADA 132 select SYS_HAS_EARLY_PRINTK 133 select SYS_SUPPORTS_32BIT_KERNEL 134 select SYS_SUPPORTS_64BIT_KERNEL 135 select SYS_SUPPORTS_LITTLE_ENDIAN 136 137config MACH_DECSTATION 138 bool "DECstations" 139 select BOOT_ELF32 140 select CEVT_DS1287 141 select CEVT_R4K 142 select CSRC_IOASIC 143 select CSRC_R4K 144 select CPU_DADDI_WORKAROUNDS if 64BIT 145 select CPU_R4000_WORKAROUNDS if 64BIT 146 select CPU_R4400_WORKAROUNDS if 64BIT 147 select DMA_NONCOHERENT 148 select NO_IOPORT 149 select IRQ_CPU 150 select SYS_HAS_CPU_R3000 151 select SYS_HAS_CPU_R4X00 152 select SYS_SUPPORTS_32BIT_KERNEL 153 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 154 select SYS_SUPPORTS_LITTLE_ENDIAN 155 select SYS_SUPPORTS_128HZ 156 select SYS_SUPPORTS_256HZ 157 select SYS_SUPPORTS_1024HZ 158 help 159 This enables support for DEC's MIPS based workstations. For details 160 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 161 DECstation porting pages on <http://decstation.unix-ag.org/>. 162 163 If you have one of the following DECstation Models you definitely 164 want to choose R4xx0 for the CPU Type: 165 166 DECstation 5000/50 167 DECstation 5000/150 168 DECstation 5000/260 169 DECsystem 5900/260 170 171 otherwise choose R3000. 172 173config MACH_JAZZ 174 bool "Jazz family of machines" 175 select ARC 176 select ARC32 177 select ARCH_MAY_HAVE_PC_FDC 178 select CEVT_R4K 179 select CSRC_R4K 180 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 181 select GENERIC_ISA_DMA 182 select HAVE_PCSPKR_PLATFORM 183 select IRQ_CPU 184 select I8253 185 select I8259 186 select ISA 187 select SYS_HAS_CPU_R4X00 188 select SYS_SUPPORTS_32BIT_KERNEL 189 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 190 select SYS_SUPPORTS_100HZ 191 help 192 This a family of machines based on the MIPS R4030 chipset which was 193 used by several vendors to build RISC/os and Windows NT workstations. 194 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 195 Olivetti M700-10 workstations. 196 197config MACH_JZ4740 198 bool "Ingenic JZ4740 based machines" 199 select SYS_HAS_CPU_MIPS32_R1 200 select SYS_SUPPORTS_32BIT_KERNEL 201 select SYS_SUPPORTS_LITTLE_ENDIAN 202 select DMA_NONCOHERENT 203 select IRQ_CPU 204 select GENERIC_GPIO 205 select ARCH_REQUIRE_GPIOLIB 206 select SYS_HAS_EARLY_PRINTK 207 select HAVE_PWM 208 select HAVE_CLK 209 210config LANTIQ 211 bool "Lantiq based platforms" 212 select DMA_NONCOHERENT 213 select IRQ_CPU 214 select CEVT_R4K 215 select CSRC_R4K 216 select SYS_HAS_CPU_MIPS32_R1 217 select SYS_HAS_CPU_MIPS32_R2 218 select SYS_SUPPORTS_BIG_ENDIAN 219 select SYS_SUPPORTS_32BIT_KERNEL 220 select SYS_SUPPORTS_MULTITHREADING 221 select SYS_HAS_EARLY_PRINTK 222 select ARCH_REQUIRE_GPIOLIB 223 select SWAP_IO_SPACE 224 select BOOT_RAW 225 select HAVE_CLK 226 select MIPS_MACHINE 227 228config LASAT 229 bool "LASAT Networks platforms" 230 select CEVT_R4K 231 select CSRC_R4K 232 select DMA_NONCOHERENT 233 select SYS_HAS_EARLY_PRINTK 234 select HW_HAS_PCI 235 select IRQ_CPU 236 select PCI_GT64XXX_PCI0 237 select MIPS_NILE4 238 select R5000_CPU_SCACHE 239 select SYS_HAS_CPU_R5000 240 select SYS_SUPPORTS_32BIT_KERNEL 241 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 242 select SYS_SUPPORTS_LITTLE_ENDIAN 243 244config MACH_LOONGSON 245 bool "Loongson family of machines" 246 select SYS_SUPPORTS_ZBOOT 247 help 248 This enables the support of Loongson family of machines. 249 250 Loongson is a family of general-purpose MIPS-compatible CPUs. 251 developed at Institute of Computing Technology (ICT), 252 Chinese Academy of Sciences (CAS) in the People's Republic 253 of China. The chief architect is Professor Weiwu Hu. 254 255config MIPS_MALTA 256 bool "MIPS Malta board" 257 select ARCH_MAY_HAVE_PC_FDC 258 select BOOT_ELF32 259 select BOOT_RAW 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select GENERIC_ISA_DMA 264 select HAVE_PCSPKR_PLATFORM 265 select IRQ_CPU 266 select IRQ_GIC 267 select HW_HAS_PCI 268 select I8253 269 select I8259 270 select MIPS_BOARDS_GEN 271 select MIPS_BONITO64 272 select MIPS_CPU_SCACHE 273 select PCI_GT64XXX_PCI0 274 select MIPS_MSC 275 select SWAP_IO_SPACE 276 select SYS_HAS_CPU_MIPS32_R1 277 select SYS_HAS_CPU_MIPS32_R2 278 select SYS_HAS_CPU_MIPS64_R1 279 select SYS_HAS_CPU_NEVADA 280 select SYS_HAS_CPU_RM7000 281 select SYS_HAS_EARLY_PRINTK 282 select SYS_SUPPORTS_32BIT_KERNEL 283 select SYS_SUPPORTS_64BIT_KERNEL 284 select SYS_SUPPORTS_BIG_ENDIAN 285 select SYS_SUPPORTS_LITTLE_ENDIAN 286 select SYS_SUPPORTS_MIPS_CMP 287 select SYS_SUPPORTS_MULTITHREADING 288 select SYS_SUPPORTS_SMARTMIPS 289 select SYS_SUPPORTS_ZBOOT 290 help 291 This enables support for the MIPS Technologies Malta evaluation 292 board. 293 294config MIPS_SIM 295 bool 'MIPS simulator (MIPSsim)' 296 select CEVT_R4K 297 select CSRC_R4K 298 select DMA_NONCOHERENT 299 select SYS_HAS_EARLY_PRINTK 300 select IRQ_CPU 301 select BOOT_RAW 302 select SYS_HAS_CPU_MIPS32_R1 303 select SYS_HAS_CPU_MIPS32_R2 304 select SYS_HAS_EARLY_PRINTK 305 select SYS_SUPPORTS_32BIT_KERNEL 306 select SYS_SUPPORTS_BIG_ENDIAN 307 select SYS_SUPPORTS_MULTITHREADING 308 select SYS_SUPPORTS_LITTLE_ENDIAN 309 help 310 This option enables support for MIPS Technologies MIPSsim software 311 emulator. 312 313config NEC_MARKEINS 314 bool "NEC EMMA2RH Mark-eins board" 315 select SOC_EMMA2RH 316 select HW_HAS_PCI 317 help 318 This enables support for the NEC Electronics Mark-eins boards. 319 320config MACH_VR41XX 321 bool "NEC VR4100 series based machines" 322 select CEVT_R4K 323 select CSRC_R4K 324 select SYS_HAS_CPU_VR41XX 325 select ARCH_REQUIRE_GPIOLIB 326 327config NXP_STB220 328 bool "NXP STB220 board" 329 select SOC_PNX833X 330 help 331 Support for NXP Semiconductors STB220 Development Board. 332 333config NXP_STB225 334 bool "NXP 225 board" 335 select SOC_PNX833X 336 select SOC_PNX8335 337 help 338 Support for NXP Semiconductors STB225 Development Board. 339 340config PNX8550_JBS 341 bool "NXP PNX8550 based JBS board" 342 select PNX8550 343 select SYS_SUPPORTS_LITTLE_ENDIAN 344 345config PNX8550_STB810 346 bool "NXP PNX8550 based STB810 board" 347 select PNX8550 348 select SYS_SUPPORTS_LITTLE_ENDIAN 349 350config PMC_MSP 351 bool "PMC-Sierra MSP chipsets" 352 depends on EXPERIMENTAL 353 select CEVT_R4K 354 select CSRC_R4K 355 select DMA_NONCOHERENT 356 select SWAP_IO_SPACE 357 select NO_EXCEPT_FILL 358 select BOOT_RAW 359 select SYS_HAS_CPU_MIPS32_R1 360 select SYS_HAS_CPU_MIPS32_R2 361 select SYS_SUPPORTS_32BIT_KERNEL 362 select SYS_SUPPORTS_BIG_ENDIAN 363 select IRQ_CPU 364 select SERIAL_8250 365 select SERIAL_8250_CONSOLE 366 help 367 This adds support for the PMC-Sierra family of Multi-Service 368 Processor System-On-A-Chips. These parts include a number 369 of integrated peripherals, interfaces and DSPs in addition to 370 a variety of MIPS cores. 371 372config PMC_YOSEMITE 373 bool "PMC-Sierra Yosemite eval board" 374 select CEVT_R4K 375 select CSRC_R4K 376 select DMA_COHERENT 377 select HW_HAS_PCI 378 select IRQ_CPU 379 select IRQ_CPU_RM7K 380 select IRQ_CPU_RM9K 381 select SWAP_IO_SPACE 382 select SYS_HAS_CPU_RM9000 383 select SYS_HAS_EARLY_PRINTK 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_64BIT_KERNEL 386 select SYS_SUPPORTS_BIG_ENDIAN 387 select SYS_SUPPORTS_HIGHMEM 388 select SYS_SUPPORTS_SMP 389 help 390 Yosemite is an evaluation board for the RM9000x2 processor 391 manufactured by PMC-Sierra. 392 393config POWERTV 394 bool "Cisco PowerTV" 395 select BOOT_ELF32 396 select CEVT_R4K 397 select CPU_MIPSR2_IRQ_VI 398 select CPU_MIPSR2_IRQ_EI 399 select CSRC_POWERTV 400 select DMA_NONCOHERENT 401 select HW_HAS_PCI 402 select SYS_HAS_EARLY_PRINTK 403 select SYS_HAS_CPU_MIPS32_R2 404 select SYS_SUPPORTS_32BIT_KERNEL 405 select SYS_SUPPORTS_BIG_ENDIAN 406 select SYS_SUPPORTS_HIGHMEM 407 select USB_OHCI_LITTLE_ENDIAN 408 help 409 This enables support for the Cisco PowerTV Platform. 410 411config SGI_IP22 412 bool "SGI IP22 (Indy/Indigo2)" 413 select ARC 414 select ARC32 415 select BOOT_ELF32 416 select CEVT_R4K 417 select CSRC_R4K 418 select DEFAULT_SGI_PARTITION 419 select DMA_NONCOHERENT 420 select HW_HAS_EISA 421 select I8253 422 select I8259 423 select IP22_CPU_SCACHE 424 select IRQ_CPU 425 select GENERIC_ISA_DMA_SUPPORT_BROKEN 426 select SGI_HAS_I8042 427 select SGI_HAS_INDYDOG 428 select SGI_HAS_HAL2 429 select SGI_HAS_SEEQ 430 select SGI_HAS_WD93 431 select SGI_HAS_ZILOG 432 select SWAP_IO_SPACE 433 select SYS_HAS_CPU_R4X00 434 select SYS_HAS_CPU_R5000 435 # 436 # Disable EARLY_PRINTK for now since it leads to overwritten prom 437 # memory during early boot on some machines. 438 # 439 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 440 # for a more details discussion 441 # 442 # select SYS_HAS_EARLY_PRINTK 443 select SYS_SUPPORTS_32BIT_KERNEL 444 select SYS_SUPPORTS_64BIT_KERNEL 445 select SYS_SUPPORTS_BIG_ENDIAN 446 help 447 This are the SGI Indy, Challenge S and Indigo2, as well as certain 448 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 449 that runs on these, say Y here. 450 451config SGI_IP27 452 bool "SGI IP27 (Origin200/2000)" 453 select ARC 454 select ARC64 455 select BOOT_ELF64 456 select DEFAULT_SGI_PARTITION 457 select DMA_COHERENT 458 select SYS_HAS_EARLY_PRINTK 459 select HW_HAS_PCI 460 select NR_CPUS_DEFAULT_64 461 select SYS_HAS_CPU_R10000 462 select SYS_SUPPORTS_64BIT_KERNEL 463 select SYS_SUPPORTS_BIG_ENDIAN 464 select SYS_SUPPORTS_NUMA 465 select SYS_SUPPORTS_SMP 466 help 467 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 468 workstations. To compile a Linux kernel that runs on these, say Y 469 here. 470 471config SGI_IP28 472 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 473 depends on EXPERIMENTAL 474 select ARC 475 select ARC64 476 select BOOT_ELF64 477 select CEVT_R4K 478 select CSRC_R4K 479 select DEFAULT_SGI_PARTITION 480 select DMA_NONCOHERENT 481 select GENERIC_ISA_DMA_SUPPORT_BROKEN 482 select IRQ_CPU 483 select HW_HAS_EISA 484 select I8253 485 select I8259 486 select SGI_HAS_I8042 487 select SGI_HAS_INDYDOG 488 select SGI_HAS_HAL2 489 select SGI_HAS_SEEQ 490 select SGI_HAS_WD93 491 select SGI_HAS_ZILOG 492 select SWAP_IO_SPACE 493 select SYS_HAS_CPU_R10000 494 # 495 # Disable EARLY_PRINTK for now since it leads to overwritten prom 496 # memory during early boot on some machines. 497 # 498 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 499 # for a more details discussion 500 # 501 # select SYS_HAS_EARLY_PRINTK 502 select SYS_SUPPORTS_64BIT_KERNEL 503 select SYS_SUPPORTS_BIG_ENDIAN 504 help 505 This is the SGI Indigo2 with R10000 processor. To compile a Linux 506 kernel that runs on these, say Y here. 507 508config SGI_IP32 509 bool "SGI IP32 (O2)" 510 select ARC 511 select ARC32 512 select BOOT_ELF32 513 select CEVT_R4K 514 select CSRC_R4K 515 select DMA_NONCOHERENT 516 select HW_HAS_PCI 517 select IRQ_CPU 518 select R5000_CPU_SCACHE 519 select RM7000_CPU_SCACHE 520 select SYS_HAS_CPU_R5000 521 select SYS_HAS_CPU_R10000 if BROKEN 522 select SYS_HAS_CPU_RM7000 523 select SYS_HAS_CPU_NEVADA 524 select SYS_SUPPORTS_64BIT_KERNEL 525 select SYS_SUPPORTS_BIG_ENDIAN 526 help 527 If you want this kernel to run on SGI O2 workstation, say Y here. 528 529config SIBYTE_CRHINE 530 bool "Sibyte BCM91120C-CRhine" 531 depends on EXPERIMENTAL 532 select BOOT_ELF32 533 select DMA_COHERENT 534 select SIBYTE_BCM1120 535 select SWAP_IO_SPACE 536 select SYS_HAS_CPU_SB1 537 select SYS_SUPPORTS_BIG_ENDIAN 538 select SYS_SUPPORTS_LITTLE_ENDIAN 539 540config SIBYTE_CARMEL 541 bool "Sibyte BCM91120x-Carmel" 542 depends on EXPERIMENTAL 543 select BOOT_ELF32 544 select DMA_COHERENT 545 select SIBYTE_BCM1120 546 select SWAP_IO_SPACE 547 select SYS_HAS_CPU_SB1 548 select SYS_SUPPORTS_BIG_ENDIAN 549 select SYS_SUPPORTS_LITTLE_ENDIAN 550 551config SIBYTE_CRHONE 552 bool "Sibyte BCM91125C-CRhone" 553 depends on EXPERIMENTAL 554 select BOOT_ELF32 555 select DMA_COHERENT 556 select SIBYTE_BCM1125 557 select SWAP_IO_SPACE 558 select SYS_HAS_CPU_SB1 559 select SYS_SUPPORTS_BIG_ENDIAN 560 select SYS_SUPPORTS_HIGHMEM 561 select SYS_SUPPORTS_LITTLE_ENDIAN 562 563config SIBYTE_RHONE 564 bool "Sibyte BCM91125E-Rhone" 565 depends on EXPERIMENTAL 566 select BOOT_ELF32 567 select DMA_COHERENT 568 select SIBYTE_BCM1125H 569 select SWAP_IO_SPACE 570 select SYS_HAS_CPU_SB1 571 select SYS_SUPPORTS_BIG_ENDIAN 572 select SYS_SUPPORTS_LITTLE_ENDIAN 573 574config SIBYTE_SWARM 575 bool "Sibyte BCM91250A-SWARM" 576 select BOOT_ELF32 577 select DMA_COHERENT 578 select HAVE_PATA_PLATFORM 579 select NR_CPUS_DEFAULT_2 580 select SIBYTE_SB1250 581 select SWAP_IO_SPACE 582 select SYS_HAS_CPU_SB1 583 select SYS_SUPPORTS_BIG_ENDIAN 584 select SYS_SUPPORTS_HIGHMEM 585 select SYS_SUPPORTS_LITTLE_ENDIAN 586 select ZONE_DMA32 if 64BIT 587 588config SIBYTE_LITTLESUR 589 bool "Sibyte BCM91250C2-LittleSur" 590 depends on EXPERIMENTAL 591 select BOOT_ELF32 592 select DMA_COHERENT 593 select HAVE_PATA_PLATFORM 594 select NR_CPUS_DEFAULT_2 595 select SIBYTE_SB1250 596 select SWAP_IO_SPACE 597 select SYS_HAS_CPU_SB1 598 select SYS_SUPPORTS_BIG_ENDIAN 599 select SYS_SUPPORTS_HIGHMEM 600 select SYS_SUPPORTS_LITTLE_ENDIAN 601 602config SIBYTE_SENTOSA 603 bool "Sibyte BCM91250E-Sentosa" 604 depends on EXPERIMENTAL 605 select BOOT_ELF32 606 select DMA_COHERENT 607 select NR_CPUS_DEFAULT_2 608 select SIBYTE_SB1250 609 select SWAP_IO_SPACE 610 select SYS_HAS_CPU_SB1 611 select SYS_SUPPORTS_BIG_ENDIAN 612 select SYS_SUPPORTS_LITTLE_ENDIAN 613 614config SIBYTE_BIGSUR 615 bool "Sibyte BCM91480B-BigSur" 616 select BOOT_ELF32 617 select DMA_COHERENT 618 select NR_CPUS_DEFAULT_4 619 select SIBYTE_BCM1x80 620 select SWAP_IO_SPACE 621 select SYS_HAS_CPU_SB1 622 select SYS_SUPPORTS_BIG_ENDIAN 623 select SYS_SUPPORTS_HIGHMEM 624 select SYS_SUPPORTS_LITTLE_ENDIAN 625 select ZONE_DMA32 if 64BIT 626 627config SNI_RM 628 bool "SNI RM200/300/400" 629 select ARC if CPU_LITTLE_ENDIAN 630 select ARC32 if CPU_LITTLE_ENDIAN 631 select SNIPROM if CPU_BIG_ENDIAN 632 select ARCH_MAY_HAVE_PC_FDC 633 select BOOT_ELF32 634 select CEVT_R4K 635 select CSRC_R4K 636 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 637 select DMA_NONCOHERENT 638 select GENERIC_ISA_DMA 639 select HAVE_PCSPKR_PLATFORM 640 select HW_HAS_EISA 641 select HW_HAS_PCI 642 select IRQ_CPU 643 select I8253 644 select I8259 645 select ISA 646 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 647 select SYS_HAS_CPU_R4X00 648 select SYS_HAS_CPU_R5000 649 select SYS_HAS_CPU_R10000 650 select R5000_CPU_SCACHE 651 select SYS_HAS_EARLY_PRINTK 652 select SYS_SUPPORTS_32BIT_KERNEL 653 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 654 select SYS_SUPPORTS_BIG_ENDIAN 655 select SYS_SUPPORTS_HIGHMEM 656 select SYS_SUPPORTS_LITTLE_ENDIAN 657 help 658 The SNI RM200/300/400 are MIPS-based machines manufactured by 659 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 660 Technology and now in turn merged with Fujitsu. Say Y here to 661 support this machine type. 662 663config MACH_TX39XX 664 bool "Toshiba TX39 series based machines" 665 666config MACH_TX49XX 667 bool "Toshiba TX49 series based machines" 668 669config MIKROTIK_RB532 670 bool "Mikrotik RB532 boards" 671 select CEVT_R4K 672 select CSRC_R4K 673 select DMA_NONCOHERENT 674 select HW_HAS_PCI 675 select IRQ_CPU 676 select SYS_HAS_CPU_MIPS32_R1 677 select SYS_SUPPORTS_32BIT_KERNEL 678 select SYS_SUPPORTS_LITTLE_ENDIAN 679 select SWAP_IO_SPACE 680 select BOOT_RAW 681 select ARCH_REQUIRE_GPIOLIB 682 help 683 Support the Mikrotik(tm) RouterBoard 532 series, 684 based on the IDT RC32434 SoC. 685 686config WR_PPMC 687 bool "Wind River PPMC board" 688 select CEVT_R4K 689 select CSRC_R4K 690 select IRQ_CPU 691 select BOOT_ELF32 692 select DMA_NONCOHERENT 693 select HW_HAS_PCI 694 select PCI_GT64XXX_PCI0 695 select SWAP_IO_SPACE 696 select SYS_HAS_CPU_MIPS32_R1 697 select SYS_HAS_CPU_MIPS32_R2 698 select SYS_HAS_CPU_MIPS64_R1 699 select SYS_HAS_CPU_NEVADA 700 select SYS_HAS_CPU_RM7000 701 select SYS_SUPPORTS_32BIT_KERNEL 702 select SYS_SUPPORTS_64BIT_KERNEL 703 select SYS_SUPPORTS_BIG_ENDIAN 704 select SYS_SUPPORTS_LITTLE_ENDIAN 705 help 706 This enables support for the Wind River MIPS32 4KC PPMC evaluation 707 board, which is based on GT64120 bridge chip. 708 709config CAVIUM_OCTEON_SIMULATOR 710 bool "Cavium Networks Octeon Simulator" 711 select CEVT_R4K 712 select 64BIT_PHYS_ADDR 713 select DMA_COHERENT 714 select SYS_SUPPORTS_64BIT_KERNEL 715 select SYS_SUPPORTS_BIG_ENDIAN 716 select SYS_SUPPORTS_HIGHMEM 717 select SYS_SUPPORTS_HOTPLUG_CPU 718 select SYS_HAS_CPU_CAVIUM_OCTEON 719 select HOLES_IN_ZONE 720 help 721 The Octeon simulator is software performance model of the Cavium 722 Octeon Processor. It supports simulating Octeon processors on x86 723 hardware. 724 725config CAVIUM_OCTEON_REFERENCE_BOARD 726 bool "Cavium Networks Octeon reference board" 727 select CEVT_R4K 728 select 64BIT_PHYS_ADDR 729 select DMA_COHERENT 730 select SYS_SUPPORTS_64BIT_KERNEL 731 select SYS_SUPPORTS_BIG_ENDIAN 732 select SYS_SUPPORTS_HIGHMEM 733 select SYS_SUPPORTS_HOTPLUG_CPU 734 select SYS_HAS_EARLY_PRINTK 735 select SYS_HAS_CPU_CAVIUM_OCTEON 736 select SWAP_IO_SPACE 737 select HW_HAS_PCI 738 select ARCH_SUPPORTS_MSI 739 select ZONE_DMA32 740 select USB_ARCH_HAS_OHCI 741 select USB_ARCH_HAS_EHCI 742 select HOLES_IN_ZONE 743 help 744 This option supports all of the Octeon reference boards from Cavium 745 Networks. It builds a kernel that dynamically determines the Octeon 746 CPU type and supports all known board reference implementations. 747 Some of the supported boards are: 748 EBT3000 749 EBH3000 750 EBH3100 751 Thunder 752 Kodama 753 Hikari 754 Say Y here for most Octeon reference boards. 755 756config NLM_XLR_BOARD 757 bool "Netlogic XLR/XLS based systems" 758 depends on EXPERIMENTAL 759 select BOOT_ELF32 760 select NLM_COMMON 761 select NLM_XLR 762 select SYS_HAS_CPU_XLR 763 select SYS_SUPPORTS_SMP 764 select HW_HAS_PCI 765 select SWAP_IO_SPACE 766 select SYS_SUPPORTS_32BIT_KERNEL 767 select SYS_SUPPORTS_64BIT_KERNEL 768 select 64BIT_PHYS_ADDR 769 select SYS_SUPPORTS_BIG_ENDIAN 770 select SYS_SUPPORTS_HIGHMEM 771 select DMA_COHERENT 772 select NR_CPUS_DEFAULT_32 773 select CEVT_R4K 774 select CSRC_R4K 775 select IRQ_CPU 776 select ZONE_DMA if 64BIT 777 select SYNC_R4K 778 select SYS_HAS_EARLY_PRINTK 779 help 780 Support for systems based on Netlogic XLR and XLS processors. 781 Say Y here if you have a XLR or XLS based board. 782 783endchoice 784 785source "arch/mips/alchemy/Kconfig" 786source "arch/mips/ath79/Kconfig" 787source "arch/mips/bcm47xx/Kconfig" 788source "arch/mips/bcm63xx/Kconfig" 789source "arch/mips/jazz/Kconfig" 790source "arch/mips/jz4740/Kconfig" 791source "arch/mips/lantiq/Kconfig" 792source "arch/mips/lasat/Kconfig" 793source "arch/mips/pmc-sierra/Kconfig" 794source "arch/mips/powertv/Kconfig" 795source "arch/mips/sgi-ip27/Kconfig" 796source "arch/mips/sibyte/Kconfig" 797source "arch/mips/txx9/Kconfig" 798source "arch/mips/vr41xx/Kconfig" 799source "arch/mips/cavium-octeon/Kconfig" 800source "arch/mips/loongson/Kconfig" 801source "arch/mips/netlogic/Kconfig" 802 803endmenu 804 805config RWSEM_GENERIC_SPINLOCK 806 bool 807 default y 808 809config RWSEM_XCHGADD_ALGORITHM 810 bool 811 812config ARCH_HAS_ILOG2_U32 813 bool 814 default n 815 816config ARCH_HAS_ILOG2_U64 817 bool 818 default n 819 820config ARCH_SUPPORTS_OPROFILE 821 bool 822 default y if !MIPS_MT_SMTC 823 824config GENERIC_HWEIGHT 825 bool 826 default y 827 828config GENERIC_CALIBRATE_DELAY 829 bool 830 default y 831 832config GENERIC_CLOCKEVENTS 833 bool 834 default y 835 836config GENERIC_CMOS_UPDATE 837 bool 838 default y 839 840config SCHED_OMIT_FRAME_POINTER 841 bool 842 default y 843 844# 845# Select some configuration options automatically based on user selections. 846# 847config ARC 848 bool 849 850config ARCH_MAY_HAVE_PC_FDC 851 bool 852 853config BOOT_RAW 854 bool 855 856config CEVT_BCM1480 857 bool 858 859config CEVT_DS1287 860 bool 861 862config CEVT_GT641XX 863 bool 864 865config CEVT_R4K_LIB 866 bool 867 868config CEVT_R4K 869 select CEVT_R4K_LIB 870 bool 871 872config CEVT_SB1250 873 bool 874 875config CEVT_TXX9 876 bool 877 878config CSRC_BCM1480 879 bool 880 881config CSRC_IOASIC 882 bool 883 884config CSRC_POWERTV 885 bool 886 887config CSRC_R4K_LIB 888 bool 889 890config CSRC_R4K 891 select CSRC_R4K_LIB 892 bool 893 894config CSRC_SB1250 895 bool 896 897config GPIO_TXX9 898 select GENERIC_GPIO 899 select ARCH_REQUIRE_GPIOLIB 900 bool 901 902config CFE 903 bool 904 905config ARCH_DMA_ADDR_T_64BIT 906 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 907 908config DMA_COHERENT 909 bool 910 911config DMA_NONCOHERENT 912 bool 913 select NEED_DMA_MAP_STATE 914 915config NEED_DMA_MAP_STATE 916 bool 917 918config SYS_HAS_EARLY_PRINTK 919 bool 920 921config HOTPLUG_CPU 922 bool "Support for hot-pluggable CPUs" 923 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 924 help 925 Say Y here to allow turning CPUs off and on. CPUs can be 926 controlled through /sys/devices/system/cpu. 927 (Note: power management support will enable this option 928 automatically on SMP systems. ) 929 Say N if you want to disable CPU hotplug. 930 931config SYS_SUPPORTS_HOTPLUG_CPU 932 bool 933 934config I8259 935 bool 936 937config MIPS_BONITO64 938 bool 939 940config MIPS_MSC 941 bool 942 943config MIPS_NILE4 944 bool 945 946config MIPS_DISABLE_OBSOLETE_IDE 947 bool 948 949config SYNC_R4K 950 bool 951 952config MIPS_MACHINE 953 def_bool n 954 955config NO_IOPORT 956 def_bool n 957 958config GENERIC_ISA_DMA 959 bool 960 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 961 select ISA_DMA_API 962 963config GENERIC_ISA_DMA_SUPPORT_BROKEN 964 bool 965 select GENERIC_ISA_DMA 966 967config ISA_DMA_API 968 bool 969 970config GENERIC_GPIO 971 bool 972 973config HOLES_IN_ZONE 974 bool 975 976# 977# Endianess selection. Sufficiently obscure so many users don't know what to 978# answer,so we try hard to limit the available choices. Also the use of a 979# choice statement should be more obvious to the user. 980# 981choice 982 prompt "Endianess selection" 983 help 984 Some MIPS machines can be configured for either little or big endian 985 byte order. These modes require different kernels and a different 986 Linux distribution. In general there is one preferred byteorder for a 987 particular system but some systems are just as commonly used in the 988 one or the other endianness. 989 990config CPU_BIG_ENDIAN 991 bool "Big endian" 992 depends on SYS_SUPPORTS_BIG_ENDIAN 993 994config CPU_LITTLE_ENDIAN 995 bool "Little endian" 996 depends on SYS_SUPPORTS_LITTLE_ENDIAN 997 help 998 999endchoice 1000 1001config EXPORT_UASM 1002 bool 1003 1004config SYS_SUPPORTS_APM_EMULATION 1005 bool 1006 1007config SYS_SUPPORTS_BIG_ENDIAN 1008 bool 1009 1010config SYS_SUPPORTS_LITTLE_ENDIAN 1011 bool 1012 1013config SYS_SUPPORTS_HUGETLBFS 1014 bool 1015 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1016 default y 1017 1018config IRQ_CPU 1019 bool 1020 1021config IRQ_CPU_RM7K 1022 bool 1023 1024config IRQ_CPU_RM9K 1025 bool 1026 1027config IRQ_MSP_SLP 1028 bool 1029 1030config IRQ_MSP_CIC 1031 bool 1032 1033config IRQ_TXX9 1034 bool 1035 1036config IRQ_GT641XX 1037 bool 1038 1039config IRQ_GIC 1040 bool 1041 1042config MIPS_BOARDS_GEN 1043 bool 1044 1045config PCI_GT64XXX_PCI0 1046 bool 1047 1048config NO_EXCEPT_FILL 1049 bool 1050 1051config MIPS_RM9122 1052 bool 1053 select SERIAL_RM9000 1054 1055config SOC_EMMA2RH 1056 bool 1057 select CEVT_R4K 1058 select CSRC_R4K 1059 select DMA_NONCOHERENT 1060 select IRQ_CPU 1061 select SWAP_IO_SPACE 1062 select SYS_HAS_CPU_R5500 1063 select SYS_SUPPORTS_32BIT_KERNEL 1064 select SYS_SUPPORTS_64BIT_KERNEL 1065 select SYS_SUPPORTS_BIG_ENDIAN 1066 1067config SOC_PNX833X 1068 bool 1069 select CEVT_R4K 1070 select CSRC_R4K 1071 select IRQ_CPU 1072 select DMA_NONCOHERENT 1073 select SYS_HAS_CPU_MIPS32_R2 1074 select SYS_SUPPORTS_32BIT_KERNEL 1075 select SYS_SUPPORTS_LITTLE_ENDIAN 1076 select SYS_SUPPORTS_BIG_ENDIAN 1077 select GENERIC_GPIO 1078 select CPU_MIPSR2_IRQ_VI 1079 1080config SOC_PNX8335 1081 bool 1082 select SOC_PNX833X 1083 1084config PNX8550 1085 bool 1086 select SOC_PNX8550 1087 1088config SOC_PNX8550 1089 bool 1090 select DMA_NONCOHERENT 1091 select HW_HAS_PCI 1092 select SYS_HAS_CPU_MIPS32_R1 1093 select SYS_HAS_EARLY_PRINTK 1094 select SYS_SUPPORTS_32BIT_KERNEL 1095 select GENERIC_GPIO 1096 1097config SWAP_IO_SPACE 1098 bool 1099 1100config SERIAL_RM9000 1101 bool 1102 1103config SGI_HAS_INDYDOG 1104 bool 1105 1106config SGI_HAS_HAL2 1107 bool 1108 1109config SGI_HAS_SEEQ 1110 bool 1111 1112config SGI_HAS_WD93 1113 bool 1114 1115config SGI_HAS_ZILOG 1116 bool 1117 1118config SGI_HAS_I8042 1119 bool 1120 1121config DEFAULT_SGI_PARTITION 1122 bool 1123 1124config ARC32 1125 bool 1126 1127config SNIPROM 1128 bool 1129 1130config BOOT_ELF32 1131 bool 1132 1133config MIPS_L1_CACHE_SHIFT 1134 int 1135 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1136 default "6" if MIPS_CPU_SCACHE 1137 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1138 default "5" 1139 1140config HAVE_STD_PC_SERIAL_PORT 1141 bool 1142 1143config ARC_CONSOLE 1144 bool "ARC console support" 1145 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1146 1147config ARC_MEMORY 1148 bool 1149 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1150 default y 1151 1152config ARC_PROMLIB 1153 bool 1154 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1155 default y 1156 1157config ARC64 1158 bool 1159 1160config BOOT_ELF64 1161 bool 1162 1163menu "CPU selection" 1164 1165choice 1166 prompt "CPU type" 1167 default CPU_R4X00 1168 1169config CPU_LOONGSON2E 1170 bool "Loongson 2E" 1171 depends on SYS_HAS_CPU_LOONGSON2E 1172 select CPU_LOONGSON2 1173 help 1174 The Loongson 2E processor implements the MIPS III instruction set 1175 with many extensions. 1176 1177 It has an internal FPGA northbridge, which is compatible to 1178 bonito64. 1179 1180config CPU_LOONGSON2F 1181 bool "Loongson 2F" 1182 depends on SYS_HAS_CPU_LOONGSON2F 1183 select CPU_LOONGSON2 1184 select GENERIC_GPIO 1185 select ARCH_REQUIRE_GPIOLIB 1186 help 1187 The Loongson 2F processor implements the MIPS III instruction set 1188 with many extensions. 1189 1190 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1191 have a similar programming interface with FPGA northbridge used in 1192 Loongson2E. 1193 1194config CPU_MIPS32_R1 1195 bool "MIPS32 Release 1" 1196 depends on SYS_HAS_CPU_MIPS32_R1 1197 select CPU_HAS_PREFETCH 1198 select CPU_SUPPORTS_32BIT_KERNEL 1199 select CPU_SUPPORTS_HIGHMEM 1200 help 1201 Choose this option to build a kernel for release 1 or later of the 1202 MIPS32 architecture. Most modern embedded systems with a 32-bit 1203 MIPS processor are based on a MIPS32 processor. If you know the 1204 specific type of processor in your system, choose those that one 1205 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1206 Release 2 of the MIPS32 architecture is available since several 1207 years so chances are you even have a MIPS32 Release 2 processor 1208 in which case you should choose CPU_MIPS32_R2 instead for better 1209 performance. 1210 1211config CPU_MIPS32_R2 1212 bool "MIPS32 Release 2" 1213 depends on SYS_HAS_CPU_MIPS32_R2 1214 select CPU_HAS_PREFETCH 1215 select CPU_SUPPORTS_32BIT_KERNEL 1216 select CPU_SUPPORTS_HIGHMEM 1217 help 1218 Choose this option to build a kernel for release 2 or later of the 1219 MIPS32 architecture. Most modern embedded systems with a 32-bit 1220 MIPS processor are based on a MIPS32 processor. If you know the 1221 specific type of processor in your system, choose those that one 1222 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1223 1224config CPU_MIPS64_R1 1225 bool "MIPS64 Release 1" 1226 depends on SYS_HAS_CPU_MIPS64_R1 1227 select CPU_HAS_PREFETCH 1228 select CPU_SUPPORTS_32BIT_KERNEL 1229 select CPU_SUPPORTS_64BIT_KERNEL 1230 select CPU_SUPPORTS_HIGHMEM 1231 select CPU_SUPPORTS_HUGEPAGES 1232 help 1233 Choose this option to build a kernel for release 1 or later of the 1234 MIPS64 architecture. Many modern embedded systems with a 64-bit 1235 MIPS processor are based on a MIPS64 processor. If you know the 1236 specific type of processor in your system, choose those that one 1237 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1238 Release 2 of the MIPS64 architecture is available since several 1239 years so chances are you even have a MIPS64 Release 2 processor 1240 in which case you should choose CPU_MIPS64_R2 instead for better 1241 performance. 1242 1243config CPU_MIPS64_R2 1244 bool "MIPS64 Release 2" 1245 depends on SYS_HAS_CPU_MIPS64_R2 1246 select CPU_HAS_PREFETCH 1247 select CPU_SUPPORTS_32BIT_KERNEL 1248 select CPU_SUPPORTS_64BIT_KERNEL 1249 select CPU_SUPPORTS_HIGHMEM 1250 select CPU_SUPPORTS_HUGEPAGES 1251 help 1252 Choose this option to build a kernel for release 2 or later of the 1253 MIPS64 architecture. Many modern embedded systems with a 64-bit 1254 MIPS processor are based on a MIPS64 processor. If you know the 1255 specific type of processor in your system, choose those that one 1256 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1257 1258config CPU_R3000 1259 bool "R3000" 1260 depends on SYS_HAS_CPU_R3000 1261 select CPU_HAS_WB 1262 select CPU_SUPPORTS_32BIT_KERNEL 1263 select CPU_SUPPORTS_HIGHMEM 1264 help 1265 Please make sure to pick the right CPU type. Linux/MIPS is not 1266 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1267 *not* work on R4000 machines and vice versa. However, since most 1268 of the supported machines have an R4000 (or similar) CPU, R4x00 1269 might be a safe bet. If the resulting kernel does not work, 1270 try to recompile with R3000. 1271 1272config CPU_TX39XX 1273 bool "R39XX" 1274 depends on SYS_HAS_CPU_TX39XX 1275 select CPU_SUPPORTS_32BIT_KERNEL 1276 1277config CPU_VR41XX 1278 bool "R41xx" 1279 depends on SYS_HAS_CPU_VR41XX 1280 select CPU_SUPPORTS_32BIT_KERNEL 1281 select CPU_SUPPORTS_64BIT_KERNEL 1282 help 1283 The options selects support for the NEC VR4100 series of processors. 1284 Only choose this option if you have one of these processors as a 1285 kernel built with this option will not run on any other type of 1286 processor or vice versa. 1287 1288config CPU_R4300 1289 bool "R4300" 1290 depends on SYS_HAS_CPU_R4300 1291 select CPU_SUPPORTS_32BIT_KERNEL 1292 select CPU_SUPPORTS_64BIT_KERNEL 1293 help 1294 MIPS Technologies R4300-series processors. 1295 1296config CPU_R4X00 1297 bool "R4x00" 1298 depends on SYS_HAS_CPU_R4X00 1299 select CPU_SUPPORTS_32BIT_KERNEL 1300 select CPU_SUPPORTS_64BIT_KERNEL 1301 help 1302 MIPS Technologies R4000-series processors other than 4300, including 1303 the R4000, R4400, R4600, and 4700. 1304 1305config CPU_TX49XX 1306 bool "R49XX" 1307 depends on SYS_HAS_CPU_TX49XX 1308 select CPU_HAS_PREFETCH 1309 select CPU_SUPPORTS_32BIT_KERNEL 1310 select CPU_SUPPORTS_64BIT_KERNEL 1311 1312config CPU_R5000 1313 bool "R5000" 1314 depends on SYS_HAS_CPU_R5000 1315 select CPU_SUPPORTS_32BIT_KERNEL 1316 select CPU_SUPPORTS_64BIT_KERNEL 1317 help 1318 MIPS Technologies R5000-series processors other than the Nevada. 1319 1320config CPU_R5432 1321 bool "R5432" 1322 depends on SYS_HAS_CPU_R5432 1323 select CPU_SUPPORTS_32BIT_KERNEL 1324 select CPU_SUPPORTS_64BIT_KERNEL 1325 1326config CPU_R5500 1327 bool "R5500" 1328 depends on SYS_HAS_CPU_R5500 1329 select CPU_SUPPORTS_32BIT_KERNEL 1330 select CPU_SUPPORTS_64BIT_KERNEL 1331 select CPU_SUPPORTS_HUGEPAGES 1332 help 1333 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1334 instruction set. 1335 1336config CPU_R6000 1337 bool "R6000" 1338 depends on EXPERIMENTAL 1339 depends on SYS_HAS_CPU_R6000 1340 select CPU_SUPPORTS_32BIT_KERNEL 1341 help 1342 MIPS Technologies R6000 and R6000A series processors. Note these 1343 processors are extremely rare and the support for them is incomplete. 1344 1345config CPU_NEVADA 1346 bool "RM52xx" 1347 depends on SYS_HAS_CPU_NEVADA 1348 select CPU_SUPPORTS_32BIT_KERNEL 1349 select CPU_SUPPORTS_64BIT_KERNEL 1350 help 1351 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1352 1353config CPU_R8000 1354 bool "R8000" 1355 depends on EXPERIMENTAL 1356 depends on SYS_HAS_CPU_R8000 1357 select CPU_HAS_PREFETCH 1358 select CPU_SUPPORTS_64BIT_KERNEL 1359 help 1360 MIPS Technologies R8000 processors. Note these processors are 1361 uncommon and the support for them is incomplete. 1362 1363config CPU_R10000 1364 bool "R10000" 1365 depends on SYS_HAS_CPU_R10000 1366 select CPU_HAS_PREFETCH 1367 select CPU_SUPPORTS_32BIT_KERNEL 1368 select CPU_SUPPORTS_64BIT_KERNEL 1369 select CPU_SUPPORTS_HIGHMEM 1370 help 1371 MIPS Technologies R10000-series processors. 1372 1373config CPU_RM7000 1374 bool "RM7000" 1375 depends on SYS_HAS_CPU_RM7000 1376 select CPU_HAS_PREFETCH 1377 select CPU_SUPPORTS_32BIT_KERNEL 1378 select CPU_SUPPORTS_64BIT_KERNEL 1379 select CPU_SUPPORTS_HIGHMEM 1380 1381config CPU_RM9000 1382 bool "RM9000" 1383 depends on SYS_HAS_CPU_RM9000 1384 select CPU_HAS_PREFETCH 1385 select CPU_SUPPORTS_32BIT_KERNEL 1386 select CPU_SUPPORTS_64BIT_KERNEL 1387 select CPU_SUPPORTS_HIGHMEM 1388 select WEAK_ORDERING 1389 1390config CPU_SB1 1391 bool "SB1" 1392 depends on SYS_HAS_CPU_SB1 1393 select CPU_SUPPORTS_32BIT_KERNEL 1394 select CPU_SUPPORTS_64BIT_KERNEL 1395 select CPU_SUPPORTS_HIGHMEM 1396 select WEAK_ORDERING 1397 1398config CPU_CAVIUM_OCTEON 1399 bool "Cavium Octeon processor" 1400 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1401 select CPU_HAS_PREFETCH 1402 select CPU_SUPPORTS_64BIT_KERNEL 1403 select SYS_SUPPORTS_SMP 1404 select NR_CPUS_DEFAULT_16 1405 select WEAK_ORDERING 1406 select CPU_SUPPORTS_HIGHMEM 1407 select CPU_SUPPORTS_HUGEPAGES 1408 help 1409 The Cavium Octeon processor is a highly integrated chip containing 1410 many ethernet hardware widgets for networking tasks. The processor 1411 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1412 Full details can be found at http://www.caviumnetworks.com. 1413 1414config CPU_BMIPS3300 1415 bool "BMIPS3300" 1416 depends on SYS_HAS_CPU_BMIPS3300 1417 select DMA_NONCOHERENT 1418 select IRQ_CPU 1419 select SWAP_IO_SPACE 1420 select SYS_SUPPORTS_32BIT_KERNEL 1421 select WEAK_ORDERING 1422 help 1423 Broadcom BMIPS3300 processors. 1424 1425config CPU_BMIPS4350 1426 bool "BMIPS4350" 1427 depends on SYS_HAS_CPU_BMIPS4350 1428 select CPU_SUPPORTS_32BIT_KERNEL 1429 select DMA_NONCOHERENT 1430 select IRQ_CPU 1431 select SWAP_IO_SPACE 1432 select SYS_SUPPORTS_SMP 1433 select SYS_SUPPORTS_HOTPLUG_CPU 1434 select WEAK_ORDERING 1435 help 1436 Broadcom BMIPS4350 ("VIPER") processors. 1437 1438config CPU_BMIPS4380 1439 bool "BMIPS4380" 1440 depends on SYS_HAS_CPU_BMIPS4380 1441 select CPU_SUPPORTS_32BIT_KERNEL 1442 select DMA_NONCOHERENT 1443 select IRQ_CPU 1444 select SWAP_IO_SPACE 1445 select SYS_SUPPORTS_SMP 1446 select SYS_SUPPORTS_HOTPLUG_CPU 1447 select WEAK_ORDERING 1448 help 1449 Broadcom BMIPS4380 processors. 1450 1451config CPU_BMIPS5000 1452 bool "BMIPS5000" 1453 depends on SYS_HAS_CPU_BMIPS5000 1454 select CPU_SUPPORTS_32BIT_KERNEL 1455 select CPU_SUPPORTS_HIGHMEM 1456 select DMA_NONCOHERENT 1457 select IRQ_CPU 1458 select SWAP_IO_SPACE 1459 select SYS_SUPPORTS_SMP 1460 select SYS_SUPPORTS_HOTPLUG_CPU 1461 select WEAK_ORDERING 1462 help 1463 Broadcom BMIPS5000 processors. 1464 1465config CPU_XLR 1466 bool "Netlogic XLR SoC" 1467 depends on SYS_HAS_CPU_XLR 1468 select CPU_SUPPORTS_32BIT_KERNEL 1469 select CPU_SUPPORTS_64BIT_KERNEL 1470 select CPU_SUPPORTS_HIGHMEM 1471 select WEAK_ORDERING 1472 select WEAK_REORDERING_BEYOND_LLSC 1473 select CPU_SUPPORTS_HUGEPAGES 1474 help 1475 Netlogic Microsystems XLR/XLS processors. 1476endchoice 1477 1478if CPU_LOONGSON2F 1479config CPU_NOP_WORKAROUNDS 1480 bool 1481 1482config CPU_JUMP_WORKAROUNDS 1483 bool 1484 1485config CPU_LOONGSON2F_WORKAROUNDS 1486 bool "Loongson 2F Workarounds" 1487 default y 1488 select CPU_NOP_WORKAROUNDS 1489 select CPU_JUMP_WORKAROUNDS 1490 help 1491 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1492 require workarounds. Without workarounds the system may hang 1493 unexpectedly. For more information please refer to the gas 1494 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1495 1496 Loongson 2F03 and later have fixed these issues and no workarounds 1497 are needed. The workarounds have no significant side effect on them 1498 but may decrease the performance of the system so this option should 1499 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1500 systems. 1501 1502 If unsure, please say Y. 1503endif # CPU_LOONGSON2F 1504 1505config SYS_SUPPORTS_ZBOOT 1506 bool 1507 select HAVE_KERNEL_GZIP 1508 select HAVE_KERNEL_BZIP2 1509 select HAVE_KERNEL_LZMA 1510 select HAVE_KERNEL_LZO 1511 1512config SYS_SUPPORTS_ZBOOT_UART16550 1513 bool 1514 select SYS_SUPPORTS_ZBOOT 1515 1516config CPU_LOONGSON2 1517 bool 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select CPU_SUPPORTS_64BIT_KERNEL 1520 select CPU_SUPPORTS_HIGHMEM 1521 1522config SYS_HAS_CPU_LOONGSON2E 1523 bool 1524 1525config SYS_HAS_CPU_LOONGSON2F 1526 bool 1527 select CPU_SUPPORTS_CPUFREQ 1528 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1529 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1530 1531config SYS_HAS_CPU_MIPS32_R1 1532 bool 1533 1534config SYS_HAS_CPU_MIPS32_R2 1535 bool 1536 1537config SYS_HAS_CPU_MIPS64_R1 1538 bool 1539 1540config SYS_HAS_CPU_MIPS64_R2 1541 bool 1542 1543config SYS_HAS_CPU_R3000 1544 bool 1545 1546config SYS_HAS_CPU_TX39XX 1547 bool 1548 1549config SYS_HAS_CPU_VR41XX 1550 bool 1551 1552config SYS_HAS_CPU_R4300 1553 bool 1554 1555config SYS_HAS_CPU_R4X00 1556 bool 1557 1558config SYS_HAS_CPU_TX49XX 1559 bool 1560 1561config SYS_HAS_CPU_R5000 1562 bool 1563 1564config SYS_HAS_CPU_R5432 1565 bool 1566 1567config SYS_HAS_CPU_R5500 1568 bool 1569 1570config SYS_HAS_CPU_R6000 1571 bool 1572 1573config SYS_HAS_CPU_NEVADA 1574 bool 1575 1576config SYS_HAS_CPU_R8000 1577 bool 1578 1579config SYS_HAS_CPU_R10000 1580 bool 1581 1582config SYS_HAS_CPU_RM7000 1583 bool 1584 1585config SYS_HAS_CPU_RM9000 1586 bool 1587 1588config SYS_HAS_CPU_SB1 1589 bool 1590 1591config SYS_HAS_CPU_CAVIUM_OCTEON 1592 bool 1593 1594config SYS_HAS_CPU_BMIPS3300 1595 bool 1596 1597config SYS_HAS_CPU_BMIPS4350 1598 bool 1599 1600config SYS_HAS_CPU_BMIPS4380 1601 bool 1602 1603config SYS_HAS_CPU_BMIPS5000 1604 bool 1605 1606config SYS_HAS_CPU_XLR 1607 bool 1608 1609# 1610# CPU may reorder R->R, R->W, W->R, W->W 1611# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1612# 1613config WEAK_ORDERING 1614 bool 1615 1616# 1617# CPU may reorder reads and writes beyond LL/SC 1618# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1619# 1620config WEAK_REORDERING_BEYOND_LLSC 1621 bool 1622endmenu 1623 1624# 1625# These two indicate any level of the MIPS32 and MIPS64 architecture 1626# 1627config CPU_MIPS32 1628 bool 1629 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1630 1631config CPU_MIPS64 1632 bool 1633 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1634 1635# 1636# These two indicate the revision of the architecture, either Release 1 or Release 2 1637# 1638config CPU_MIPSR1 1639 bool 1640 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1641 1642config CPU_MIPSR2 1643 bool 1644 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1645 1646config SYS_SUPPORTS_32BIT_KERNEL 1647 bool 1648config SYS_SUPPORTS_64BIT_KERNEL 1649 bool 1650config CPU_SUPPORTS_32BIT_KERNEL 1651 bool 1652config CPU_SUPPORTS_64BIT_KERNEL 1653 bool 1654config CPU_SUPPORTS_CPUFREQ 1655 bool 1656config CPU_SUPPORTS_ADDRWINCFG 1657 bool 1658config CPU_SUPPORTS_HUGEPAGES 1659 bool 1660config CPU_SUPPORTS_UNCACHED_ACCELERATED 1661 bool 1662config MIPS_PGD_C0_CONTEXT 1663 bool 1664 default y if 64BIT && CPU_MIPSR2 1665 1666# 1667# Set to y for ptrace access to watch registers. 1668# 1669config HARDWARE_WATCHPOINTS 1670 bool 1671 default y if CPU_MIPSR1 || CPU_MIPSR2 1672 1673menu "Kernel type" 1674 1675choice 1676 1677 prompt "Kernel code model" 1678 help 1679 You should only select this option if you have a workload that 1680 actually benefits from 64-bit processing or if your machine has 1681 large memory. You will only be presented a single option in this 1682 menu if your system does not support both 32-bit and 64-bit kernels. 1683 1684config 32BIT 1685 bool "32-bit kernel" 1686 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1687 select TRAD_SIGNALS 1688 help 1689 Select this option if you want to build a 32-bit kernel. 1690config 64BIT 1691 bool "64-bit kernel" 1692 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1693 select HAVE_SYSCALL_WRAPPERS 1694 help 1695 Select this option if you want to build a 64-bit kernel. 1696 1697endchoice 1698 1699choice 1700 prompt "Kernel page size" 1701 default PAGE_SIZE_4KB 1702 1703config PAGE_SIZE_4KB 1704 bool "4kB" 1705 depends on !CPU_LOONGSON2 1706 help 1707 This option select the standard 4kB Linux page size. On some 1708 R3000-family processors this is the only available page size. Using 1709 4kB page size will minimize memory consumption and is therefore 1710 recommended for low memory systems. 1711 1712config PAGE_SIZE_8KB 1713 bool "8kB" 1714 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1715 help 1716 Using 8kB page size will result in higher performance kernel at 1717 the price of higher memory consumption. This option is available 1718 only on R8000 and cnMIPS processors. Note that you will need a 1719 suitable Linux distribution to support this. 1720 1721config PAGE_SIZE_16KB 1722 bool "16kB" 1723 depends on !CPU_R3000 && !CPU_TX39XX 1724 help 1725 Using 16kB page size will result in higher performance kernel at 1726 the price of higher memory consumption. This option is available on 1727 all non-R3000 family processors. Note that you will need a suitable 1728 Linux distribution to support this. 1729 1730config PAGE_SIZE_32KB 1731 bool "32kB" 1732 depends on CPU_CAVIUM_OCTEON 1733 help 1734 Using 32kB page size will result in higher performance kernel at 1735 the price of higher memory consumption. This option is available 1736 only on cnMIPS cores. Note that you will need a suitable Linux 1737 distribution to support this. 1738 1739config PAGE_SIZE_64KB 1740 bool "64kB" 1741 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1742 help 1743 Using 64kB page size will result in higher performance kernel at 1744 the price of higher memory consumption. This option is available on 1745 all non-R3000 family processor. Not that at the time of this 1746 writing this option is still high experimental. 1747 1748endchoice 1749 1750config FORCE_MAX_ZONEORDER 1751 int "Maximum zone order" 1752 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB 1753 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB 1754 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB 1755 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB 1756 range 11 64 1757 default "11" 1758 help 1759 The kernel memory allocator divides physically contiguous memory 1760 blocks into "zones", where each zone is a power of two number of 1761 pages. This option selects the largest power of two that the kernel 1762 keeps in the memory allocator. If you need to allocate very large 1763 blocks of physically contiguous memory, then you may need to 1764 increase this value. 1765 1766 This config option is actually maximum order plus one. For example, 1767 a value of 11 means that the largest free memory block is 2^10 pages. 1768 1769 The page size is not necessarily 4KB. Keep this in mind 1770 when choosing a value for this option. 1771 1772config BOARD_SCACHE 1773 bool 1774 1775config IP22_CPU_SCACHE 1776 bool 1777 select BOARD_SCACHE 1778 1779# 1780# Support for a MIPS32 / MIPS64 style S-caches 1781# 1782config MIPS_CPU_SCACHE 1783 bool 1784 select BOARD_SCACHE 1785 1786config R5000_CPU_SCACHE 1787 bool 1788 select BOARD_SCACHE 1789 1790config RM7000_CPU_SCACHE 1791 bool 1792 select BOARD_SCACHE 1793 1794config SIBYTE_DMA_PAGEOPS 1795 bool "Use DMA to clear/copy pages" 1796 depends on CPU_SB1 1797 help 1798 Instead of using the CPU to zero and copy pages, use a Data Mover 1799 channel. These DMA channels are otherwise unused by the standard 1800 SiByte Linux port. Seems to give a small performance benefit. 1801 1802config CPU_HAS_PREFETCH 1803 bool 1804 1805choice 1806 prompt "MIPS MT options" 1807 1808config MIPS_MT_DISABLED 1809 bool "Disable multithreading support." 1810 help 1811 Use this option if your workload can't take advantage of 1812 MIPS hardware multithreading support. On systems that don't have 1813 the option of an MT-enabled processor this option will be the only 1814 option in this menu. 1815 1816config MIPS_MT_SMP 1817 bool "Use 1 TC on each available VPE for SMP" 1818 depends on SYS_SUPPORTS_MULTITHREADING 1819 select CPU_MIPSR2_IRQ_VI 1820 select CPU_MIPSR2_IRQ_EI 1821 select MIPS_MT 1822 select NR_CPUS_DEFAULT_2 1823 select SMP 1824 select SYS_SUPPORTS_SCHED_SMT if SMP 1825 select SYS_SUPPORTS_SMP 1826 select SMP_UP 1827 help 1828 This is a kernel model which is known a VSMP but lately has been 1829 marketesed into SMVP. 1830 Virtual SMP uses the processor's VPEs to implement virtual 1831 processors. In currently available configuration of the 34K processor 1832 this allows for a dual processor. Both processors will share the same 1833 primary caches; each will obtain the half of the TLB for it's own 1834 exclusive use. For a layman this model can be described as similar to 1835 what Intel calls Hyperthreading. 1836 1837 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1838 1839config MIPS_MT_SMTC 1840 bool "SMTC: Use all TCs on all VPEs for SMP" 1841 depends on CPU_MIPS32_R2 1842 #depends on CPU_MIPS64_R2 # once there is hardware ... 1843 depends on SYS_SUPPORTS_MULTITHREADING 1844 select CPU_MIPSR2_IRQ_VI 1845 select CPU_MIPSR2_IRQ_EI 1846 select MIPS_MT 1847 select NR_CPUS_DEFAULT_8 1848 select SMP 1849 select SYS_SUPPORTS_SMP 1850 select SMP_UP 1851 help 1852 This is a kernel model which is known a SMTC or lately has been 1853 marketesed into SMVP. 1854 is presenting the available TC's of the core as processors to Linux. 1855 On currently available 34K processors this means a Linux system will 1856 see up to 5 processors. The implementation of the SMTC kernel differs 1857 significantly from VSMP and cannot efficiently coexist in the same 1858 kernel binary so the choice between VSMP and SMTC is a compile time 1859 decision. 1860 1861 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1862 1863endchoice 1864 1865config MIPS_MT 1866 bool 1867 1868config SCHED_SMT 1869 bool "SMT (multithreading) scheduler support" 1870 depends on SYS_SUPPORTS_SCHED_SMT 1871 default n 1872 help 1873 SMT scheduler support improves the CPU scheduler's decision making 1874 when dealing with MIPS MT enabled cores at a cost of slightly 1875 increased overhead in some places. If unsure say N here. 1876 1877config SYS_SUPPORTS_SCHED_SMT 1878 bool 1879 1880 1881config SYS_SUPPORTS_MULTITHREADING 1882 bool 1883 1884config MIPS_MT_FPAFF 1885 bool "Dynamic FPU affinity for FP-intensive threads" 1886 default y 1887 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1888 1889config MIPS_VPE_LOADER 1890 bool "VPE loader support." 1891 depends on SYS_SUPPORTS_MULTITHREADING 1892 select CPU_MIPSR2_IRQ_VI 1893 select CPU_MIPSR2_IRQ_EI 1894 select MIPS_MT 1895 help 1896 Includes a loader for loading an elf relocatable object 1897 onto another VPE and running it. 1898 1899config MIPS_MT_SMTC_IM_BACKSTOP 1900 bool "Use per-TC register bits as backstop for inhibited IM bits" 1901 depends on MIPS_MT_SMTC 1902 default n 1903 help 1904 To support multiple TC microthreads acting as "CPUs" within 1905 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1906 during interrupt handling. To support legacy drivers and interrupt 1907 controller management code, SMTC has a "backstop" to track and 1908 if necessary restore the interrupt mask. This has some performance 1909 impact on interrupt service overhead. 1910 1911config MIPS_MT_SMTC_IRQAFF 1912 bool "Support IRQ affinity API" 1913 depends on MIPS_MT_SMTC 1914 default n 1915 help 1916 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1917 for SMTC Linux kernel. Requires platform support, of which 1918 an example can be found in the MIPS kernel i8259 and Malta 1919 platform code. Adds some overhead to interrupt dispatch, and 1920 should be used only if you know what you are doing. 1921 1922config MIPS_VPE_LOADER_TOM 1923 bool "Load VPE program into memory hidden from linux" 1924 depends on MIPS_VPE_LOADER 1925 default y 1926 help 1927 The loader can use memory that is present but has been hidden from 1928 Linux using the kernel command line option "mem=xxMB". It's up to 1929 you to ensure the amount you put in the option and the space your 1930 program requires is less or equal to the amount physically present. 1931 1932# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1933config MIPS_VPE_APSP_API 1934 bool "Enable support for AP/SP API (RTLX)" 1935 depends on MIPS_VPE_LOADER 1936 help 1937 1938config MIPS_APSP_KSPD 1939 bool "Enable KSPD" 1940 depends on MIPS_VPE_APSP_API 1941 default y 1942 help 1943 KSPD is a kernel daemon that accepts syscall requests from the SP 1944 side, actions them and returns the results. It also handles the 1945 "exit" syscall notifying other kernel modules the SP program is 1946 exiting. You probably want to say yes here. 1947 1948config MIPS_CMP 1949 bool "MIPS CMP framework support" 1950 depends on SYS_SUPPORTS_MIPS_CMP 1951 select SYNC_R4K 1952 select SYS_SUPPORTS_SMP 1953 select SYS_SUPPORTS_SCHED_SMT if SMP 1954 select WEAK_ORDERING 1955 default n 1956 help 1957 This is a placeholder option for the GCMP work. It will need to 1958 be handled differently... 1959 1960config SB1_PASS_1_WORKAROUNDS 1961 bool 1962 depends on CPU_SB1_PASS_1 1963 default y 1964 1965config SB1_PASS_2_WORKAROUNDS 1966 bool 1967 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1968 default y 1969 1970config SB1_PASS_2_1_WORKAROUNDS 1971 bool 1972 depends on CPU_SB1 && CPU_SB1_PASS_2 1973 default y 1974 1975config 64BIT_PHYS_ADDR 1976 bool 1977 1978config ARCH_PHYS_ADDR_T_64BIT 1979 def_bool 64BIT_PHYS_ADDR 1980 1981config CPU_HAS_SMARTMIPS 1982 depends on SYS_SUPPORTS_SMARTMIPS 1983 bool "Support for the SmartMIPS ASE" 1984 help 1985 SmartMIPS is a extension of the MIPS32 architecture aimed at 1986 increased security at both hardware and software level for 1987 smartcards. Enabling this option will allow proper use of the 1988 SmartMIPS instructions by Linux applications. However a kernel with 1989 this option will not work on a MIPS core without SmartMIPS core. If 1990 you don't know you probably don't have SmartMIPS and should say N 1991 here. 1992 1993config CPU_HAS_WB 1994 bool 1995 1996# 1997# Vectored interrupt mode is an R2 feature 1998# 1999config CPU_MIPSR2_IRQ_VI 2000 bool 2001 2002# 2003# Extended interrupt mode is an R2 feature 2004# 2005config CPU_MIPSR2_IRQ_EI 2006 bool 2007 2008config CPU_HAS_SYNC 2009 bool 2010 depends on !CPU_R3000 2011 default y 2012 2013config GENERIC_CLOCKEVENTS_BROADCAST 2014 bool 2015 2016# 2017# CPU non-features 2018# 2019config CPU_DADDI_WORKAROUNDS 2020 bool 2021 2022config CPU_R4000_WORKAROUNDS 2023 bool 2024 select CPU_R4400_WORKAROUNDS 2025 2026config CPU_R4400_WORKAROUNDS 2027 bool 2028 2029# 2030# - Highmem only makes sense for the 32-bit kernel. 2031# - The current highmem code will only work properly on physically indexed 2032# caches such as R3000, SB1, R7000 or those that look like they're virtually 2033# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2034# moment we protect the user and offer the highmem option only on machines 2035# where it's known to be safe. This will not offer highmem on a few systems 2036# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2037# indexed CPUs but we're playing safe. 2038# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2039# know they might have memory configurations that could make use of highmem 2040# support. 2041# 2042config HIGHMEM 2043 bool "High Memory Support" 2044 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2045 2046config CPU_SUPPORTS_HIGHMEM 2047 bool 2048 2049config SYS_SUPPORTS_HIGHMEM 2050 bool 2051 2052config SYS_SUPPORTS_SMARTMIPS 2053 bool 2054 2055config ARCH_FLATMEM_ENABLE 2056 def_bool y 2057 depends on !NUMA && !CPU_LOONGSON2 2058 2059config ARCH_DISCONTIGMEM_ENABLE 2060 bool 2061 default y if SGI_IP27 2062 help 2063 Say Y to support efficient handling of discontiguous physical memory, 2064 for architectures which are either NUMA (Non-Uniform Memory Access) 2065 or have huge holes in the physical address space for other reasons. 2066 See <file:Documentation/vm/numa> for more. 2067 2068config ARCH_POPULATES_NODE_MAP 2069 def_bool y 2070 2071config ARCH_SPARSEMEM_ENABLE 2072 bool 2073 select SPARSEMEM_STATIC 2074 2075config NUMA 2076 bool "NUMA Support" 2077 depends on SYS_SUPPORTS_NUMA 2078 help 2079 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2080 Access). This option improves performance on systems with more 2081 than two nodes; on two node systems it is generally better to 2082 leave it disabled; on single node systems disable this option 2083 disabled. 2084 2085config SYS_SUPPORTS_NUMA 2086 bool 2087 2088config NODES_SHIFT 2089 int 2090 default "6" 2091 depends on NEED_MULTIPLE_NODES 2092 2093config HW_PERF_EVENTS 2094 bool "Enable hardware performance counter support for perf events" 2095 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && CPU_MIPS32 2096 default y 2097 help 2098 Enable hardware performance counter support for perf events. If 2099 disabled, perf events will use software events only. 2100 2101source "mm/Kconfig" 2102 2103config SMP 2104 bool "Multi-Processing support" 2105 depends on SYS_SUPPORTS_SMP 2106 select IRQ_PER_CPU 2107 select USE_GENERIC_SMP_HELPERS 2108 help 2109 This enables support for systems with more than one CPU. If you have 2110 a system with only one CPU, like most personal computers, say N. If 2111 you have a system with more than one CPU, say Y. 2112 2113 If you say N here, the kernel will run on single and multiprocessor 2114 machines, but will use only one CPU of a multiprocessor machine. If 2115 you say Y here, the kernel will run on many, but not all, 2116 singleprocessor machines. On a singleprocessor machine, the kernel 2117 will run faster if you say N here. 2118 2119 People using multiprocessor machines who say Y here should also say 2120 Y to "Enhanced Real Time Clock Support", below. 2121 2122 See also the SMP-HOWTO available at 2123 <http://www.tldp.org/docs.html#howto>. 2124 2125 If you don't know what to do here, say N. 2126 2127config SMP_UP 2128 bool 2129 2130config SYS_SUPPORTS_MIPS_CMP 2131 bool 2132 2133config SYS_SUPPORTS_SMP 2134 bool 2135 2136config NR_CPUS_DEFAULT_1 2137 bool 2138 2139config NR_CPUS_DEFAULT_2 2140 bool 2141 2142config NR_CPUS_DEFAULT_4 2143 bool 2144 2145config NR_CPUS_DEFAULT_8 2146 bool 2147 2148config NR_CPUS_DEFAULT_16 2149 bool 2150 2151config NR_CPUS_DEFAULT_32 2152 bool 2153 2154config NR_CPUS_DEFAULT_64 2155 bool 2156 2157config NR_CPUS 2158 int "Maximum number of CPUs (2-64)" 2159 range 1 64 if NR_CPUS_DEFAULT_1 2160 depends on SMP 2161 default "1" if NR_CPUS_DEFAULT_1 2162 default "2" if NR_CPUS_DEFAULT_2 2163 default "4" if NR_CPUS_DEFAULT_4 2164 default "8" if NR_CPUS_DEFAULT_8 2165 default "16" if NR_CPUS_DEFAULT_16 2166 default "32" if NR_CPUS_DEFAULT_32 2167 default "64" if NR_CPUS_DEFAULT_64 2168 help 2169 This allows you to specify the maximum number of CPUs which this 2170 kernel will support. The maximum supported value is 32 for 32-bit 2171 kernel and 64 for 64-bit kernels; the minimum value which makes 2172 sense is 1 for Qemu (useful only for kernel debugging purposes) 2173 and 2 for all others. 2174 2175 This is purely to save memory - each supported CPU adds 2176 approximately eight kilobytes to the kernel image. For best 2177 performance should round up your number of processors to the next 2178 power of two. 2179 2180source "kernel/time/Kconfig" 2181 2182# 2183# Timer Interrupt Frequency Configuration 2184# 2185 2186choice 2187 prompt "Timer frequency" 2188 default HZ_250 2189 help 2190 Allows the configuration of the timer frequency. 2191 2192 config HZ_48 2193 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2194 2195 config HZ_100 2196 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2197 2198 config HZ_128 2199 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2200 2201 config HZ_250 2202 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2203 2204 config HZ_256 2205 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2206 2207 config HZ_1000 2208 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2209 2210 config HZ_1024 2211 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2212 2213endchoice 2214 2215config SYS_SUPPORTS_48HZ 2216 bool 2217 2218config SYS_SUPPORTS_100HZ 2219 bool 2220 2221config SYS_SUPPORTS_128HZ 2222 bool 2223 2224config SYS_SUPPORTS_250HZ 2225 bool 2226 2227config SYS_SUPPORTS_256HZ 2228 bool 2229 2230config SYS_SUPPORTS_1000HZ 2231 bool 2232 2233config SYS_SUPPORTS_1024HZ 2234 bool 2235 2236config SYS_SUPPORTS_ARBIT_HZ 2237 bool 2238 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2239 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2240 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2241 !SYS_SUPPORTS_1024HZ 2242 2243config HZ 2244 int 2245 default 48 if HZ_48 2246 default 100 if HZ_100 2247 default 128 if HZ_128 2248 default 250 if HZ_250 2249 default 256 if HZ_256 2250 default 1000 if HZ_1000 2251 default 1024 if HZ_1024 2252 2253source "kernel/Kconfig.preempt" 2254 2255config MIPS_INSANE_LARGE 2256 bool "Support for large 64-bit configurations" 2257 depends on CPU_R10000 && 64BIT 2258 help 2259 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 2260 previous 64-bit processors which only supported 40 bit / 1TB. If you 2261 need processes of more than 1TB virtual address space, say Y here. 2262 This will result in additional memory usage, so it is not 2263 recommended for normal users. 2264 2265config KEXEC 2266 bool "Kexec system call (EXPERIMENTAL)" 2267 depends on EXPERIMENTAL 2268 help 2269 kexec is a system call that implements the ability to shutdown your 2270 current kernel, and to start another kernel. It is like a reboot 2271 but it is independent of the system firmware. And like a reboot 2272 you can start any kernel with it, not just Linux. 2273 2274 The name comes from the similarity to the exec system call. 2275 2276 It is an ongoing process to be certain the hardware in a machine 2277 is properly shutdown, so do not be surprised if this code does not 2278 initially work for you. It may help to enable device hotplugging 2279 support. As of this writing the exact hardware interface is 2280 strongly in flux, so no good recommendation can be made. 2281 2282config SECCOMP 2283 bool "Enable seccomp to safely compute untrusted bytecode" 2284 depends on PROC_FS 2285 default y 2286 help 2287 This kernel feature is useful for number crunching applications 2288 that may need to compute untrusted bytecode during their 2289 execution. By using pipes or other transports made available to 2290 the process as file descriptors supporting the read/write 2291 syscalls, it's possible to isolate those applications in 2292 their own address space using seccomp. Once seccomp is 2293 enabled via /proc/<pid>/seccomp, it cannot be disabled 2294 and the task is only allowed to execute a few safe syscalls 2295 defined by each seccomp mode. 2296 2297 If unsure, say Y. Only embedded should say N here. 2298 2299config USE_OF 2300 bool "Flattened Device Tree support" 2301 select OF 2302 select OF_EARLY_FLATTREE 2303 help 2304 Include support for flattened device tree machine descriptions. 2305 2306endmenu 2307 2308config LOCKDEP_SUPPORT 2309 bool 2310 default y 2311 2312config STACKTRACE_SUPPORT 2313 bool 2314 default y 2315 2316source "init/Kconfig" 2317 2318source "kernel/Kconfig.freezer" 2319 2320menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2321 2322config HW_HAS_EISA 2323 bool 2324config HW_HAS_PCI 2325 bool 2326 2327config PCI 2328 bool "Support for PCI controller" 2329 depends on HW_HAS_PCI 2330 select PCI_DOMAINS 2331 help 2332 Find out whether you have a PCI motherboard. PCI is the name of a 2333 bus system, i.e. the way the CPU talks to the other stuff inside 2334 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2335 say Y, otherwise N. 2336 2337config PCI_DOMAINS 2338 bool 2339 2340source "drivers/pci/Kconfig" 2341 2342# 2343# ISA support is now enabled via select. Too many systems still have the one 2344# or other ISA chip on the board that users don't know about so don't expect 2345# users to choose the right thing ... 2346# 2347config ISA 2348 bool 2349 2350config EISA 2351 bool "EISA support" 2352 depends on HW_HAS_EISA 2353 select ISA 2354 select GENERIC_ISA_DMA 2355 ---help--- 2356 The Extended Industry Standard Architecture (EISA) bus was 2357 developed as an open alternative to the IBM MicroChannel bus. 2358 2359 The EISA bus provided some of the features of the IBM MicroChannel 2360 bus while maintaining backward compatibility with cards made for 2361 the older ISA bus. The EISA bus saw limited use between 1988 and 2362 1995 when it was made obsolete by the PCI bus. 2363 2364 Say Y here if you are building a kernel for an EISA-based machine. 2365 2366 Otherwise, say N. 2367 2368source "drivers/eisa/Kconfig" 2369 2370config TC 2371 bool "TURBOchannel support" 2372 depends on MACH_DECSTATION 2373 help 2374 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2375 processors. TURBOchannel programming specifications are available 2376 at: 2377 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2378 and: 2379 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2380 Linux driver support status is documented at: 2381 <http://www.linux-mips.org/wiki/DECstation> 2382 2383#config ACCESSBUS 2384# bool "Access.Bus support" 2385# depends on TC 2386 2387config MMU 2388 bool 2389 default y 2390 2391config I8253 2392 bool 2393 select CLKSRC_I8253 2394 select CLKEVT_I8253 2395 select MIPS_EXTERNAL_TIMER 2396 2397config ZONE_DMA32 2398 bool 2399 2400source "drivers/pcmcia/Kconfig" 2401 2402source "drivers/pci/hotplug/Kconfig" 2403 2404config RAPIDIO 2405 bool "RapidIO support" 2406 depends on PCI 2407 default n 2408 help 2409 If you say Y here, the kernel will include drivers and 2410 infrastructure code to support RapidIO interconnect devices. 2411 2412source "drivers/rapidio/Kconfig" 2413 2414endmenu 2415 2416menu "Executable file formats" 2417 2418source "fs/Kconfig.binfmt" 2419 2420config TRAD_SIGNALS 2421 bool 2422 2423config MIPS32_COMPAT 2424 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2425 depends on 64BIT 2426 help 2427 Select this option if you want Linux/MIPS 32-bit binary 2428 compatibility. Since all software available for Linux/MIPS is 2429 currently 32-bit you should say Y here. 2430 2431config COMPAT 2432 bool 2433 depends on MIPS32_COMPAT 2434 default y 2435 2436config SYSVIPC_COMPAT 2437 bool 2438 depends on COMPAT && SYSVIPC 2439 default y 2440 2441config MIPS32_O32 2442 bool "Kernel support for o32 binaries" 2443 depends on MIPS32_COMPAT 2444 help 2445 Select this option if you want to run o32 binaries. These are pure 2446 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2447 existing binaries are in this format. 2448 2449 If unsure, say Y. 2450 2451config MIPS32_N32 2452 bool "Kernel support for n32 binaries" 2453 depends on MIPS32_COMPAT 2454 help 2455 Select this option if you want to run n32 binaries. These are 2456 64-bit binaries using 32-bit quantities for addressing and certain 2457 data that would normally be 64-bit. They are used in special 2458 cases. 2459 2460 If unsure, say N. 2461 2462config BINFMT_ELF32 2463 bool 2464 default y if MIPS32_O32 || MIPS32_N32 2465 2466endmenu 2467 2468menu "Power management options" 2469 2470config ARCH_HIBERNATION_POSSIBLE 2471 def_bool y 2472 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2473 2474config ARCH_SUSPEND_POSSIBLE 2475 def_bool y 2476 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2477 2478source "kernel/power/Kconfig" 2479 2480endmenu 2481 2482source "arch/mips/kernel/cpufreq/Kconfig" 2483 2484source "net/Kconfig" 2485 2486source "drivers/Kconfig" 2487 2488source "fs/Kconfig" 2489 2490source "arch/mips/Kconfig.debug" 2491 2492source "security/Kconfig" 2493 2494source "crypto/Kconfig" 2495 2496source "lib/Kconfig" 2497