1config MIPS 2 bool 3 default y 4 select HAVE_CONTEXT_TRACKING 5 select HAVE_GENERIC_DMA_COHERENT 6 select HAVE_IDE 7 select HAVE_OPROFILE 8 select HAVE_PERF_EVENTS 9 select PERF_USE_VMALLOC 10 select HAVE_ARCH_KGDB 11 select ARCH_HAVE_CUSTOM_GPIO_H 12 select HAVE_FUNCTION_TRACER 13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 14 select HAVE_DYNAMIC_FTRACE 15 select HAVE_FTRACE_MCOUNT_RECORD 16 select HAVE_C_RECORDMCOUNT 17 select HAVE_FUNCTION_GRAPH_TRACER 18 select HAVE_KPROBES 19 select HAVE_KRETPROBES 20 select HAVE_DEBUG_KMEMLEAK 21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 22 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 23 select RTC_LIB if !MACH_LOONGSON 24 select GENERIC_ATOMIC64 if !64BIT 25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 26 select HAVE_DMA_ATTRS 27 select HAVE_DMA_API_DEBUG 28 select HAVE_GENERIC_HARDIRQS 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_PCI_IOMAP 32 select HAVE_ARCH_JUMP_LABEL 33 select ARCH_WANT_IPC_PARSE_VERSION 34 select IRQ_FORCED_THREADING 35 select HAVE_MEMBLOCK 36 select HAVE_MEMBLOCK_NODE_MAP 37 select ARCH_DISCARD_MEMBLOCK 38 select GENERIC_SMP_IDLE_THREAD 39 select BUILDTIME_EXTABLE_SORT 40 select GENERIC_CLOCKEVENTS 41 select GENERIC_CMOS_UPDATE 42 select HAVE_MOD_ARCH_SPECIFIC 43 select VIRT_TO_BUS 44 select MODULES_USE_ELF_REL if MODULES 45 select MODULES_USE_ELF_RELA if MODULES && 64BIT 46 select CLONE_BACKWARDS 47 select HAVE_DEBUG_STACKOVERFLOW 48 49menu "Machine selection" 50 51choice 52 prompt "System type" 53 default SGI_IP22 54 55config MIPS_ALCHEMY 56 bool "Alchemy processor based machines" 57 select 64BIT_PHYS_ADDR 58 select CEVT_R4K 59 select CSRC_R4K 60 select IRQ_CPU 61 select SYS_HAS_CPU_MIPS32_R1 62 select SYS_SUPPORTS_32BIT_KERNEL 63 select SYS_SUPPORTS_APM_EMULATION 64 select ARCH_REQUIRE_GPIOLIB 65 select SYS_SUPPORTS_ZBOOT 66 select USB_ARCH_HAS_OHCI 67 select USB_ARCH_HAS_EHCI 68 69config AR7 70 bool "Texas Instruments AR7" 71 select BOOT_ELF32 72 select DMA_NONCOHERENT 73 select CEVT_R4K 74 select CSRC_R4K 75 select IRQ_CPU 76 select NO_EXCEPT_FILL 77 select SWAP_IO_SPACE 78 select SYS_HAS_CPU_MIPS32_R1 79 select SYS_HAS_EARLY_PRINTK 80 select SYS_SUPPORTS_32BIT_KERNEL 81 select SYS_SUPPORTS_LITTLE_ENDIAN 82 select SYS_SUPPORTS_ZBOOT_UART16550 83 select ARCH_REQUIRE_GPIOLIB 84 select VLYNQ 85 select HAVE_CLK 86 help 87 Support for the Texas Instruments AR7 System-on-a-Chip 88 family: TNETD7100, 7200 and 7300. 89 90config ATH79 91 bool "Atheros AR71XX/AR724X/AR913X based boards" 92 select ARCH_REQUIRE_GPIOLIB 93 select BOOT_RAW 94 select CEVT_R4K 95 select CSRC_R4K 96 select DMA_NONCOHERENT 97 select HAVE_CLK 98 select IRQ_CPU 99 select MIPS_MACHINE 100 select SYS_HAS_CPU_MIPS32_R2 101 select SYS_HAS_EARLY_PRINTK 102 select SYS_SUPPORTS_32BIT_KERNEL 103 select SYS_SUPPORTS_BIG_ENDIAN 104 help 105 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 106 107config BCM47XX 108 bool "Broadcom BCM47XX based boards" 109 select ARCH_WANT_OPTIONAL_GPIOLIB 110 select BOOT_RAW 111 select CEVT_R4K 112 select CSRC_R4K 113 select DMA_NONCOHERENT 114 select FW_CFE 115 select HW_HAS_PCI 116 select IRQ_CPU 117 select SYS_HAS_CPU_MIPS32_R1 118 select NO_EXCEPT_FILL 119 select SYS_SUPPORTS_32BIT_KERNEL 120 select SYS_SUPPORTS_LITTLE_ENDIAN 121 select SYS_HAS_EARLY_PRINTK 122 help 123 Support for BCM47XX based boards 124 125config BCM63XX 126 bool "Broadcom BCM63XX based boards" 127 select BOOT_RAW 128 select CEVT_R4K 129 select CSRC_R4K 130 select DMA_NONCOHERENT 131 select IRQ_CPU 132 select SYS_HAS_CPU_MIPS32_R1 133 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348 134 select NR_CPUS_DEFAULT_2 135 select SYS_SUPPORTS_32BIT_KERNEL 136 select SYS_SUPPORTS_BIG_ENDIAN 137 select SYS_HAS_EARLY_PRINTK 138 select SWAP_IO_SPACE 139 select ARCH_REQUIRE_GPIOLIB 140 select HAVE_CLK 141 help 142 Support for BCM63XX based boards 143 144config MIPS_COBALT 145 bool "Cobalt Server" 146 select CEVT_R4K 147 select CSRC_R4K 148 select CEVT_GT641XX 149 select DMA_NONCOHERENT 150 select HW_HAS_PCI 151 select I8253 152 select I8259 153 select IRQ_CPU 154 select IRQ_GT641XX 155 select PCI_GT64XXX_PCI0 156 select PCI 157 select SYS_HAS_CPU_NEVADA 158 select SYS_HAS_EARLY_PRINTK 159 select SYS_SUPPORTS_32BIT_KERNEL 160 select SYS_SUPPORTS_64BIT_KERNEL 161 select SYS_SUPPORTS_LITTLE_ENDIAN 162 163config MACH_DECSTATION 164 bool "DECstations" 165 select BOOT_ELF32 166 select CEVT_DS1287 167 select CEVT_R4K 168 select CSRC_IOASIC 169 select CSRC_R4K 170 select CPU_DADDI_WORKAROUNDS if 64BIT 171 select CPU_R4000_WORKAROUNDS if 64BIT 172 select CPU_R4400_WORKAROUNDS if 64BIT 173 select DMA_NONCOHERENT 174 select NO_IOPORT 175 select IRQ_CPU 176 select SYS_HAS_CPU_R3000 177 select SYS_HAS_CPU_R4X00 178 select SYS_SUPPORTS_32BIT_KERNEL 179 select SYS_SUPPORTS_64BIT_KERNEL 180 select SYS_SUPPORTS_LITTLE_ENDIAN 181 select SYS_SUPPORTS_128HZ 182 select SYS_SUPPORTS_256HZ 183 select SYS_SUPPORTS_1024HZ 184 help 185 This enables support for DEC's MIPS based workstations. For details 186 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 187 DECstation porting pages on <http://decstation.unix-ag.org/>. 188 189 If you have one of the following DECstation Models you definitely 190 want to choose R4xx0 for the CPU Type: 191 192 DECstation 5000/50 193 DECstation 5000/150 194 DECstation 5000/260 195 DECsystem 5900/260 196 197 otherwise choose R3000. 198 199config MACH_JAZZ 200 bool "Jazz family of machines" 201 select FW_ARC 202 select FW_ARC32 203 select ARCH_MAY_HAVE_PC_FDC 204 select CEVT_R4K 205 select CSRC_R4K 206 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 207 select GENERIC_ISA_DMA 208 select HAVE_PCSPKR_PLATFORM 209 select IRQ_CPU 210 select I8253 211 select I8259 212 select ISA 213 select SYS_HAS_CPU_R4X00 214 select SYS_SUPPORTS_32BIT_KERNEL 215 select SYS_SUPPORTS_64BIT_KERNEL 216 select SYS_SUPPORTS_100HZ 217 help 218 This a family of machines based on the MIPS R4030 chipset which was 219 used by several vendors to build RISC/os and Windows NT workstations. 220 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 221 Olivetti M700-10 workstations. 222 223config MACH_JZ4740 224 bool "Ingenic JZ4740 based machines" 225 select SYS_HAS_CPU_MIPS32_R1 226 select SYS_SUPPORTS_32BIT_KERNEL 227 select SYS_SUPPORTS_LITTLE_ENDIAN 228 select SYS_SUPPORTS_ZBOOT_UART16550 229 select DMA_NONCOHERENT 230 select IRQ_CPU 231 select ARCH_REQUIRE_GPIOLIB 232 select SYS_HAS_EARLY_PRINTK 233 select HAVE_PWM 234 select HAVE_CLK 235 select GENERIC_IRQ_CHIP 236 237config LANTIQ 238 bool "Lantiq based platforms" 239 select DMA_NONCOHERENT 240 select IRQ_CPU 241 select CEVT_R4K 242 select CSRC_R4K 243 select SYS_HAS_CPU_MIPS32_R1 244 select SYS_HAS_CPU_MIPS32_R2 245 select SYS_SUPPORTS_BIG_ENDIAN 246 select SYS_SUPPORTS_32BIT_KERNEL 247 select SYS_SUPPORTS_MULTITHREADING 248 select SYS_HAS_EARLY_PRINTK 249 select ARCH_REQUIRE_GPIOLIB 250 select SWAP_IO_SPACE 251 select BOOT_RAW 252 select HAVE_MACH_CLKDEV 253 select CLKDEV_LOOKUP 254 select USE_OF 255 select PINCTRL 256 select PINCTRL_LANTIQ 257 258config LASAT 259 bool "LASAT Networks platforms" 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select SYS_HAS_EARLY_PRINTK 264 select HW_HAS_PCI 265 select IRQ_CPU 266 select PCI_GT64XXX_PCI0 267 select MIPS_NILE4 268 select R5000_CPU_SCACHE 269 select SYS_HAS_CPU_R5000 270 select SYS_SUPPORTS_32BIT_KERNEL 271 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 272 select SYS_SUPPORTS_LITTLE_ENDIAN 273 274config MACH_LOONGSON 275 bool "Loongson family of machines" 276 select SYS_SUPPORTS_ZBOOT 277 help 278 This enables the support of Loongson family of machines. 279 280 Loongson is a family of general-purpose MIPS-compatible CPUs. 281 developed at Institute of Computing Technology (ICT), 282 Chinese Academy of Sciences (CAS) in the People's Republic 283 of China. The chief architect is Professor Weiwu Hu. 284 285config MACH_LOONGSON1 286 bool "Loongson 1 family of machines" 287 select SYS_SUPPORTS_ZBOOT 288 help 289 This enables support for the Loongson 1 based machines. 290 291 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 292 the ICT (Institute of Computing Technology) and the Chinese Academy 293 of Sciences. 294 295config MIPS_MALTA 296 bool "MIPS Malta board" 297 select ARCH_MAY_HAVE_PC_FDC 298 select BOOT_ELF32 299 select BOOT_RAW 300 select CEVT_R4K 301 select CSRC_R4K 302 select CSRC_GIC 303 select DMA_NONCOHERENT 304 select GENERIC_ISA_DMA 305 select HAVE_PCSPKR_PLATFORM 306 select IRQ_CPU 307 select IRQ_GIC 308 select HW_HAS_PCI 309 select I8253 310 select I8259 311 select MIPS_BONITO64 312 select MIPS_CPU_SCACHE 313 select PCI_GT64XXX_PCI0 314 select MIPS_MSC 315 select SWAP_IO_SPACE 316 select SYS_HAS_CPU_MIPS32_R1 317 select SYS_HAS_CPU_MIPS32_R2 318 select SYS_HAS_CPU_MIPS64_R1 319 select SYS_HAS_CPU_MIPS64_R2 320 select SYS_HAS_CPU_NEVADA 321 select SYS_HAS_CPU_RM7000 322 select SYS_HAS_EARLY_PRINTK 323 select SYS_SUPPORTS_32BIT_KERNEL 324 select SYS_SUPPORTS_64BIT_KERNEL 325 select SYS_SUPPORTS_BIG_ENDIAN 326 select SYS_SUPPORTS_LITTLE_ENDIAN 327 select SYS_SUPPORTS_MIPS_CMP 328 select SYS_SUPPORTS_MULTITHREADING 329 select SYS_SUPPORTS_SMARTMIPS 330 select SYS_SUPPORTS_ZBOOT 331 help 332 This enables support for the MIPS Technologies Malta evaluation 333 board. 334 335config MIPS_SEAD3 336 bool "MIPS SEAD3 board" 337 select BOOT_ELF32 338 select BOOT_RAW 339 select CEVT_R4K 340 select CSRC_R4K 341 select CSRC_GIC 342 select CPU_MIPSR2_IRQ_VI 343 select CPU_MIPSR2_IRQ_EI 344 select DMA_NONCOHERENT 345 select IRQ_CPU 346 select IRQ_GIC 347 select MIPS_MSC 348 select SYS_HAS_CPU_MIPS32_R1 349 select SYS_HAS_CPU_MIPS32_R2 350 select SYS_HAS_CPU_MIPS64_R1 351 select SYS_HAS_EARLY_PRINTK 352 select SYS_SUPPORTS_32BIT_KERNEL 353 select SYS_SUPPORTS_64BIT_KERNEL 354 select SYS_SUPPORTS_BIG_ENDIAN 355 select SYS_SUPPORTS_LITTLE_ENDIAN 356 select SYS_SUPPORTS_SMARTMIPS 357 select SYS_SUPPORTS_MICROMIPS 358 select USB_ARCH_HAS_EHCI 359 select USB_EHCI_BIG_ENDIAN_DESC 360 select USB_EHCI_BIG_ENDIAN_MMIO 361 select USE_OF 362 help 363 This enables support for the MIPS Technologies SEAD3 evaluation 364 board. 365 366config NEC_MARKEINS 367 bool "NEC EMMA2RH Mark-eins board" 368 select SOC_EMMA2RH 369 select HW_HAS_PCI 370 help 371 This enables support for the NEC Electronics Mark-eins boards. 372 373config MACH_VR41XX 374 bool "NEC VR4100 series based machines" 375 select CEVT_R4K 376 select CSRC_R4K 377 select SYS_HAS_CPU_VR41XX 378 select ARCH_REQUIRE_GPIOLIB 379 380config NXP_STB220 381 bool "NXP STB220 board" 382 select SOC_PNX833X 383 help 384 Support for NXP Semiconductors STB220 Development Board. 385 386config NXP_STB225 387 bool "NXP 225 board" 388 select SOC_PNX833X 389 select SOC_PNX8335 390 help 391 Support for NXP Semiconductors STB225 Development Board. 392 393config PMC_MSP 394 bool "PMC-Sierra MSP chipsets" 395 select CEVT_R4K 396 select CSRC_R4K 397 select DMA_NONCOHERENT 398 select SWAP_IO_SPACE 399 select NO_EXCEPT_FILL 400 select BOOT_RAW 401 select SYS_HAS_CPU_MIPS32_R1 402 select SYS_HAS_CPU_MIPS32_R2 403 select SYS_SUPPORTS_32BIT_KERNEL 404 select SYS_SUPPORTS_BIG_ENDIAN 405 select IRQ_CPU 406 select SERIAL_8250 407 select SERIAL_8250_CONSOLE 408 select USB_EHCI_BIG_ENDIAN_MMIO 409 select USB_EHCI_BIG_ENDIAN_DESC 410 help 411 This adds support for the PMC-Sierra family of Multi-Service 412 Processor System-On-A-Chips. These parts include a number 413 of integrated peripherals, interfaces and DSPs in addition to 414 a variety of MIPS cores. 415 416config POWERTV 417 bool "Cisco PowerTV" 418 select BOOT_ELF32 419 select CEVT_R4K 420 select CPU_MIPSR2_IRQ_VI 421 select CPU_MIPSR2_IRQ_EI 422 select CSRC_POWERTV 423 select DMA_NONCOHERENT 424 select HW_HAS_PCI 425 select SYS_HAS_CPU_MIPS32_R2 426 select SYS_SUPPORTS_32BIT_KERNEL 427 select SYS_SUPPORTS_BIG_ENDIAN 428 select SYS_SUPPORTS_HIGHMEM 429 select USB_OHCI_LITTLE_ENDIAN 430 help 431 This enables support for the Cisco PowerTV Platform. 432 433config RALINK 434 bool "Ralink based machines" 435 select CEVT_R4K 436 select CSRC_R4K 437 select BOOT_RAW 438 select DMA_NONCOHERENT 439 select IRQ_CPU 440 select USE_OF 441 select SYS_HAS_CPU_MIPS32_R1 442 select SYS_HAS_CPU_MIPS32_R2 443 select SYS_SUPPORTS_32BIT_KERNEL 444 select SYS_SUPPORTS_LITTLE_ENDIAN 445 select SYS_HAS_EARLY_PRINTK 446 select HAVE_MACH_CLKDEV 447 select CLKDEV_LOOKUP 448 449config SGI_IP22 450 bool "SGI IP22 (Indy/Indigo2)" 451 select FW_ARC 452 select FW_ARC32 453 select BOOT_ELF32 454 select CEVT_R4K 455 select CSRC_R4K 456 select DEFAULT_SGI_PARTITION 457 select DMA_NONCOHERENT 458 select HW_HAS_EISA 459 select I8253 460 select I8259 461 select IP22_CPU_SCACHE 462 select IRQ_CPU 463 select GENERIC_ISA_DMA_SUPPORT_BROKEN 464 select SGI_HAS_I8042 465 select SGI_HAS_INDYDOG 466 select SGI_HAS_HAL2 467 select SGI_HAS_SEEQ 468 select SGI_HAS_WD93 469 select SGI_HAS_ZILOG 470 select SWAP_IO_SPACE 471 select SYS_HAS_CPU_R4X00 472 select SYS_HAS_CPU_R5000 473 # 474 # Disable EARLY_PRINTK for now since it leads to overwritten prom 475 # memory during early boot on some machines. 476 # 477 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 478 # for a more details discussion 479 # 480 # select SYS_HAS_EARLY_PRINTK 481 select SYS_SUPPORTS_32BIT_KERNEL 482 select SYS_SUPPORTS_64BIT_KERNEL 483 select SYS_SUPPORTS_BIG_ENDIAN 484 help 485 This are the SGI Indy, Challenge S and Indigo2, as well as certain 486 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 487 that runs on these, say Y here. 488 489config SGI_IP27 490 bool "SGI IP27 (Origin200/2000)" 491 select FW_ARC 492 select FW_ARC64 493 select BOOT_ELF64 494 select DEFAULT_SGI_PARTITION 495 select DMA_COHERENT 496 select SYS_HAS_EARLY_PRINTK 497 select HW_HAS_PCI 498 select NR_CPUS_DEFAULT_64 499 select SYS_HAS_CPU_R10000 500 select SYS_SUPPORTS_64BIT_KERNEL 501 select SYS_SUPPORTS_BIG_ENDIAN 502 select SYS_SUPPORTS_NUMA 503 select SYS_SUPPORTS_SMP 504 help 505 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 506 workstations. To compile a Linux kernel that runs on these, say Y 507 here. 508 509config SGI_IP28 510 bool "SGI IP28 (Indigo2 R10k)" 511 select FW_ARC 512 select FW_ARC64 513 select BOOT_ELF64 514 select CEVT_R4K 515 select CSRC_R4K 516 select DEFAULT_SGI_PARTITION 517 select DMA_NONCOHERENT 518 select GENERIC_ISA_DMA_SUPPORT_BROKEN 519 select IRQ_CPU 520 select HW_HAS_EISA 521 select I8253 522 select I8259 523 select SGI_HAS_I8042 524 select SGI_HAS_INDYDOG 525 select SGI_HAS_HAL2 526 select SGI_HAS_SEEQ 527 select SGI_HAS_WD93 528 select SGI_HAS_ZILOG 529 select SWAP_IO_SPACE 530 select SYS_HAS_CPU_R10000 531 # 532 # Disable EARLY_PRINTK for now since it leads to overwritten prom 533 # memory during early boot on some machines. 534 # 535 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 536 # for a more details discussion 537 # 538 # select SYS_HAS_EARLY_PRINTK 539 select SYS_SUPPORTS_64BIT_KERNEL 540 select SYS_SUPPORTS_BIG_ENDIAN 541 help 542 This is the SGI Indigo2 with R10000 processor. To compile a Linux 543 kernel that runs on these, say Y here. 544 545config SGI_IP32 546 bool "SGI IP32 (O2)" 547 select FW_ARC 548 select FW_ARC32 549 select BOOT_ELF32 550 select CEVT_R4K 551 select CSRC_R4K 552 select DMA_NONCOHERENT 553 select HW_HAS_PCI 554 select IRQ_CPU 555 select R5000_CPU_SCACHE 556 select RM7000_CPU_SCACHE 557 select SYS_HAS_CPU_R5000 558 select SYS_HAS_CPU_R10000 if BROKEN 559 select SYS_HAS_CPU_RM7000 560 select SYS_HAS_CPU_NEVADA 561 select SYS_SUPPORTS_64BIT_KERNEL 562 select SYS_SUPPORTS_BIG_ENDIAN 563 help 564 If you want this kernel to run on SGI O2 workstation, say Y here. 565 566config SIBYTE_CRHINE 567 bool "Sibyte BCM91120C-CRhine" 568 select BOOT_ELF32 569 select DMA_COHERENT 570 select SIBYTE_BCM1120 571 select SWAP_IO_SPACE 572 select SYS_HAS_CPU_SB1 573 select SYS_SUPPORTS_BIG_ENDIAN 574 select SYS_SUPPORTS_LITTLE_ENDIAN 575 576config SIBYTE_CARMEL 577 bool "Sibyte BCM91120x-Carmel" 578 select BOOT_ELF32 579 select DMA_COHERENT 580 select SIBYTE_BCM1120 581 select SWAP_IO_SPACE 582 select SYS_HAS_CPU_SB1 583 select SYS_SUPPORTS_BIG_ENDIAN 584 select SYS_SUPPORTS_LITTLE_ENDIAN 585 586config SIBYTE_CRHONE 587 bool "Sibyte BCM91125C-CRhone" 588 select BOOT_ELF32 589 select DMA_COHERENT 590 select SIBYTE_BCM1125 591 select SWAP_IO_SPACE 592 select SYS_HAS_CPU_SB1 593 select SYS_SUPPORTS_BIG_ENDIAN 594 select SYS_SUPPORTS_HIGHMEM 595 select SYS_SUPPORTS_LITTLE_ENDIAN 596 597config SIBYTE_RHONE 598 bool "Sibyte BCM91125E-Rhone" 599 select BOOT_ELF32 600 select DMA_COHERENT 601 select SIBYTE_BCM1125H 602 select SWAP_IO_SPACE 603 select SYS_HAS_CPU_SB1 604 select SYS_SUPPORTS_BIG_ENDIAN 605 select SYS_SUPPORTS_LITTLE_ENDIAN 606 607config SIBYTE_SWARM 608 bool "Sibyte BCM91250A-SWARM" 609 select BOOT_ELF32 610 select DMA_COHERENT 611 select HAVE_PATA_PLATFORM 612 select NR_CPUS_DEFAULT_2 613 select SIBYTE_SB1250 614 select SWAP_IO_SPACE 615 select SYS_HAS_CPU_SB1 616 select SYS_SUPPORTS_BIG_ENDIAN 617 select SYS_SUPPORTS_HIGHMEM 618 select SYS_SUPPORTS_LITTLE_ENDIAN 619 select ZONE_DMA32 if 64BIT 620 621config SIBYTE_LITTLESUR 622 bool "Sibyte BCM91250C2-LittleSur" 623 select BOOT_ELF32 624 select DMA_COHERENT 625 select HAVE_PATA_PLATFORM 626 select NR_CPUS_DEFAULT_2 627 select SIBYTE_SB1250 628 select SWAP_IO_SPACE 629 select SYS_HAS_CPU_SB1 630 select SYS_SUPPORTS_BIG_ENDIAN 631 select SYS_SUPPORTS_HIGHMEM 632 select SYS_SUPPORTS_LITTLE_ENDIAN 633 634config SIBYTE_SENTOSA 635 bool "Sibyte BCM91250E-Sentosa" 636 select BOOT_ELF32 637 select DMA_COHERENT 638 select NR_CPUS_DEFAULT_2 639 select SIBYTE_SB1250 640 select SWAP_IO_SPACE 641 select SYS_HAS_CPU_SB1 642 select SYS_SUPPORTS_BIG_ENDIAN 643 select SYS_SUPPORTS_LITTLE_ENDIAN 644 645config SIBYTE_BIGSUR 646 bool "Sibyte BCM91480B-BigSur" 647 select BOOT_ELF32 648 select DMA_COHERENT 649 select NR_CPUS_DEFAULT_4 650 select SIBYTE_BCM1x80 651 select SWAP_IO_SPACE 652 select SYS_HAS_CPU_SB1 653 select SYS_SUPPORTS_BIG_ENDIAN 654 select SYS_SUPPORTS_HIGHMEM 655 select SYS_SUPPORTS_LITTLE_ENDIAN 656 select ZONE_DMA32 if 64BIT 657 658config SNI_RM 659 bool "SNI RM200/300/400" 660 select FW_ARC if CPU_LITTLE_ENDIAN 661 select FW_ARC32 if CPU_LITTLE_ENDIAN 662 select FW_SNIPROM if CPU_BIG_ENDIAN 663 select ARCH_MAY_HAVE_PC_FDC 664 select BOOT_ELF32 665 select CEVT_R4K 666 select CSRC_R4K 667 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 668 select DMA_NONCOHERENT 669 select GENERIC_ISA_DMA 670 select HAVE_PCSPKR_PLATFORM 671 select HW_HAS_EISA 672 select HW_HAS_PCI 673 select IRQ_CPU 674 select I8253 675 select I8259 676 select ISA 677 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 678 select SYS_HAS_CPU_R4X00 679 select SYS_HAS_CPU_R5000 680 select SYS_HAS_CPU_R10000 681 select R5000_CPU_SCACHE 682 select SYS_HAS_EARLY_PRINTK 683 select SYS_SUPPORTS_32BIT_KERNEL 684 select SYS_SUPPORTS_64BIT_KERNEL 685 select SYS_SUPPORTS_BIG_ENDIAN 686 select SYS_SUPPORTS_HIGHMEM 687 select SYS_SUPPORTS_LITTLE_ENDIAN 688 help 689 The SNI RM200/300/400 are MIPS-based machines manufactured by 690 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 691 Technology and now in turn merged with Fujitsu. Say Y here to 692 support this machine type. 693 694config MACH_TX39XX 695 bool "Toshiba TX39 series based machines" 696 697config MACH_TX49XX 698 bool "Toshiba TX49 series based machines" 699 700config MIKROTIK_RB532 701 bool "Mikrotik RB532 boards" 702 select CEVT_R4K 703 select CSRC_R4K 704 select DMA_NONCOHERENT 705 select HW_HAS_PCI 706 select IRQ_CPU 707 select SYS_HAS_CPU_MIPS32_R1 708 select SYS_SUPPORTS_32BIT_KERNEL 709 select SYS_SUPPORTS_LITTLE_ENDIAN 710 select SWAP_IO_SPACE 711 select BOOT_RAW 712 select ARCH_REQUIRE_GPIOLIB 713 help 714 Support the Mikrotik(tm) RouterBoard 532 series, 715 based on the IDT RC32434 SoC. 716 717config CAVIUM_OCTEON_SOC 718 bool "Cavium Networks Octeon SoC based boards" 719 select CEVT_R4K 720 select 64BIT_PHYS_ADDR 721 select DMA_COHERENT 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select EDAC_SUPPORT 725 select SYS_SUPPORTS_HOTPLUG_CPU 726 select SYS_HAS_EARLY_PRINTK 727 select SYS_HAS_CPU_CAVIUM_OCTEON 728 select SWAP_IO_SPACE 729 select HW_HAS_PCI 730 select ARCH_SUPPORTS_MSI 731 select ZONE_DMA32 732 select USB_ARCH_HAS_OHCI 733 select USB_ARCH_HAS_EHCI 734 select HOLES_IN_ZONE 735 help 736 This option supports all of the Octeon reference boards from Cavium 737 Networks. It builds a kernel that dynamically determines the Octeon 738 CPU type and supports all known board reference implementations. 739 Some of the supported boards are: 740 EBT3000 741 EBH3000 742 EBH3100 743 Thunder 744 Kodama 745 Hikari 746 Say Y here for most Octeon reference boards. 747 748config NLM_XLR_BOARD 749 bool "Netlogic XLR/XLS based systems" 750 select BOOT_ELF32 751 select NLM_COMMON 752 select SYS_HAS_CPU_XLR 753 select SYS_SUPPORTS_SMP 754 select HW_HAS_PCI 755 select SWAP_IO_SPACE 756 select SYS_SUPPORTS_32BIT_KERNEL 757 select SYS_SUPPORTS_64BIT_KERNEL 758 select 64BIT_PHYS_ADDR 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select SYS_SUPPORTS_HIGHMEM 761 select DMA_COHERENT 762 select NR_CPUS_DEFAULT_32 763 select CEVT_R4K 764 select CSRC_R4K 765 select IRQ_CPU 766 select ARCH_SUPPORTS_MSI 767 select ZONE_DMA32 if 64BIT 768 select SYNC_R4K 769 select SYS_HAS_EARLY_PRINTK 770 select USB_ARCH_HAS_OHCI if USB_SUPPORT 771 select USB_ARCH_HAS_EHCI if USB_SUPPORT 772 select SYS_SUPPORTS_ZBOOT 773 select SYS_SUPPORTS_ZBOOT_UART16550 774 help 775 Support for systems based on Netlogic XLR and XLS processors. 776 Say Y here if you have a XLR or XLS based board. 777 778config NLM_XLP_BOARD 779 bool "Netlogic XLP based systems" 780 select BOOT_ELF32 781 select NLM_COMMON 782 select SYS_HAS_CPU_XLP 783 select SYS_SUPPORTS_SMP 784 select HW_HAS_PCI 785 select SYS_SUPPORTS_32BIT_KERNEL 786 select SYS_SUPPORTS_64BIT_KERNEL 787 select 64BIT_PHYS_ADDR 788 select SYS_SUPPORTS_BIG_ENDIAN 789 select SYS_SUPPORTS_LITTLE_ENDIAN 790 select SYS_SUPPORTS_HIGHMEM 791 select DMA_COHERENT 792 select NR_CPUS_DEFAULT_32 793 select CEVT_R4K 794 select CSRC_R4K 795 select IRQ_CPU 796 select ZONE_DMA32 if 64BIT 797 select SYNC_R4K 798 select SYS_HAS_EARLY_PRINTK 799 select USE_OF 800 select SYS_SUPPORTS_ZBOOT 801 select SYS_SUPPORTS_ZBOOT_UART16550 802 help 803 This board is based on Netlogic XLP Processor. 804 Say Y here if you have a XLP based board. 805 806endchoice 807 808source "arch/mips/alchemy/Kconfig" 809source "arch/mips/ath79/Kconfig" 810source "arch/mips/bcm47xx/Kconfig" 811source "arch/mips/bcm63xx/Kconfig" 812source "arch/mips/jazz/Kconfig" 813source "arch/mips/jz4740/Kconfig" 814source "arch/mips/lantiq/Kconfig" 815source "arch/mips/lasat/Kconfig" 816source "arch/mips/pmcs-msp71xx/Kconfig" 817source "arch/mips/powertv/Kconfig" 818source "arch/mips/ralink/Kconfig" 819source "arch/mips/sgi-ip27/Kconfig" 820source "arch/mips/sibyte/Kconfig" 821source "arch/mips/txx9/Kconfig" 822source "arch/mips/vr41xx/Kconfig" 823source "arch/mips/cavium-octeon/Kconfig" 824source "arch/mips/loongson/Kconfig" 825source "arch/mips/loongson1/Kconfig" 826source "arch/mips/netlogic/Kconfig" 827 828endmenu 829 830config RWSEM_GENERIC_SPINLOCK 831 bool 832 default y 833 834config RWSEM_XCHGADD_ALGORITHM 835 bool 836 837config ARCH_HAS_ILOG2_U32 838 bool 839 default n 840 841config ARCH_HAS_ILOG2_U64 842 bool 843 default n 844 845config GENERIC_HWEIGHT 846 bool 847 default y 848 849config GENERIC_CALIBRATE_DELAY 850 bool 851 default y 852 853config SCHED_OMIT_FRAME_POINTER 854 bool 855 default y 856 857# 858# Select some configuration options automatically based on user selections. 859# 860config FW_ARC 861 bool 862 863config ARCH_MAY_HAVE_PC_FDC 864 bool 865 866config BOOT_RAW 867 bool 868 869config CEVT_BCM1480 870 bool 871 872config CEVT_DS1287 873 bool 874 875config CEVT_GT641XX 876 bool 877 878config CEVT_R4K 879 bool 880 881config CEVT_GIC 882 bool 883 884config CEVT_SB1250 885 bool 886 887config CEVT_TXX9 888 bool 889 890config CSRC_BCM1480 891 bool 892 893config CSRC_IOASIC 894 bool 895 896config CSRC_POWERTV 897 bool 898 899config CSRC_R4K 900 bool 901 902config CSRC_GIC 903 bool 904 905config CSRC_SB1250 906 bool 907 908config GPIO_TXX9 909 select ARCH_REQUIRE_GPIOLIB 910 bool 911 912config FW_CFE 913 bool 914 915config ARCH_DMA_ADDR_T_64BIT 916 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 917 918config DMA_COHERENT 919 bool 920 921config DMA_NONCOHERENT 922 bool 923 select NEED_DMA_MAP_STATE 924 925config NEED_DMA_MAP_STATE 926 bool 927 928config SYS_HAS_EARLY_PRINTK 929 bool 930 931config HOTPLUG_CPU 932 bool "Support for hot-pluggable CPUs" 933 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 934 help 935 Say Y here to allow turning CPUs off and on. CPUs can be 936 controlled through /sys/devices/system/cpu. 937 (Note: power management support will enable this option 938 automatically on SMP systems. ) 939 Say N if you want to disable CPU hotplug. 940 941config SYS_SUPPORTS_HOTPLUG_CPU 942 bool 943 944config I8259 945 bool 946 947config MIPS_BONITO64 948 bool 949 950config MIPS_MSC 951 bool 952 953config MIPS_NILE4 954 bool 955 956config SYNC_R4K 957 bool 958 959config MIPS_MACHINE 960 def_bool n 961 962config NO_IOPORT 963 def_bool n 964 965config GENERIC_ISA_DMA 966 bool 967 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 968 select ISA_DMA_API 969 970config GENERIC_ISA_DMA_SUPPORT_BROKEN 971 bool 972 select GENERIC_ISA_DMA 973 974config ISA_DMA_API 975 bool 976 977config HOLES_IN_ZONE 978 bool 979 980# 981# Endianness selection. Sufficiently obscure so many users don't know what to 982# answer,so we try hard to limit the available choices. Also the use of a 983# choice statement should be more obvious to the user. 984# 985choice 986 prompt "Endianness selection" 987 help 988 Some MIPS machines can be configured for either little or big endian 989 byte order. These modes require different kernels and a different 990 Linux distribution. In general there is one preferred byteorder for a 991 particular system but some systems are just as commonly used in the 992 one or the other endianness. 993 994config CPU_BIG_ENDIAN 995 bool "Big endian" 996 depends on SYS_SUPPORTS_BIG_ENDIAN 997 998config CPU_LITTLE_ENDIAN 999 bool "Little endian" 1000 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1001 1002endchoice 1003 1004config EXPORT_UASM 1005 bool 1006 1007config SYS_SUPPORTS_APM_EMULATION 1008 bool 1009 1010config SYS_SUPPORTS_BIG_ENDIAN 1011 bool 1012 1013config SYS_SUPPORTS_LITTLE_ENDIAN 1014 bool 1015 1016config SYS_SUPPORTS_HUGETLBFS 1017 bool 1018 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1019 default y 1020 1021config MIPS_HUGE_TLB_SUPPORT 1022 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1023 1024config IRQ_CPU 1025 bool 1026 1027config IRQ_CPU_RM7K 1028 bool 1029 1030config IRQ_MSP_SLP 1031 bool 1032 1033config IRQ_MSP_CIC 1034 bool 1035 1036config IRQ_TXX9 1037 bool 1038 1039config IRQ_GT641XX 1040 bool 1041 1042config IRQ_GIC 1043 bool 1044 1045config PCI_GT64XXX_PCI0 1046 bool 1047 1048config NO_EXCEPT_FILL 1049 bool 1050 1051config SOC_EMMA2RH 1052 bool 1053 select CEVT_R4K 1054 select CSRC_R4K 1055 select DMA_NONCOHERENT 1056 select IRQ_CPU 1057 select SWAP_IO_SPACE 1058 select SYS_HAS_CPU_R5500 1059 select SYS_SUPPORTS_32BIT_KERNEL 1060 select SYS_SUPPORTS_64BIT_KERNEL 1061 select SYS_SUPPORTS_BIG_ENDIAN 1062 1063config SOC_PNX833X 1064 bool 1065 select CEVT_R4K 1066 select CSRC_R4K 1067 select IRQ_CPU 1068 select DMA_NONCOHERENT 1069 select SYS_HAS_CPU_MIPS32_R2 1070 select SYS_SUPPORTS_32BIT_KERNEL 1071 select SYS_SUPPORTS_LITTLE_ENDIAN 1072 select SYS_SUPPORTS_BIG_ENDIAN 1073 select CPU_MIPSR2_IRQ_VI 1074 1075config SOC_PNX8335 1076 bool 1077 select SOC_PNX833X 1078 1079config SWAP_IO_SPACE 1080 bool 1081 1082config SGI_HAS_INDYDOG 1083 bool 1084 1085config SGI_HAS_HAL2 1086 bool 1087 1088config SGI_HAS_SEEQ 1089 bool 1090 1091config SGI_HAS_WD93 1092 bool 1093 1094config SGI_HAS_ZILOG 1095 bool 1096 1097config SGI_HAS_I8042 1098 bool 1099 1100config DEFAULT_SGI_PARTITION 1101 bool 1102 1103config FW_ARC32 1104 bool 1105 1106config FW_SNIPROM 1107 bool 1108 1109config BOOT_ELF32 1110 bool 1111 1112config MIPS_L1_CACHE_SHIFT 1113 int 1114 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X 1115 default "6" if MIPS_CPU_SCACHE 1116 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1117 default "5" 1118 1119config HAVE_STD_PC_SERIAL_PORT 1120 bool 1121 1122config ARC_CONSOLE 1123 bool "ARC console support" 1124 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1125 1126config ARC_MEMORY 1127 bool 1128 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1129 default y 1130 1131config ARC_PROMLIB 1132 bool 1133 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1134 default y 1135 1136config FW_ARC64 1137 bool 1138 1139config BOOT_ELF64 1140 bool 1141 1142menu "CPU selection" 1143 1144choice 1145 prompt "CPU type" 1146 default CPU_R4X00 1147 1148config CPU_LOONGSON2E 1149 bool "Loongson 2E" 1150 depends on SYS_HAS_CPU_LOONGSON2E 1151 select CPU_LOONGSON2 1152 help 1153 The Loongson 2E processor implements the MIPS III instruction set 1154 with many extensions. 1155 1156 It has an internal FPGA northbridge, which is compatible to 1157 bonito64. 1158 1159config CPU_LOONGSON2F 1160 bool "Loongson 2F" 1161 depends on SYS_HAS_CPU_LOONGSON2F 1162 select CPU_LOONGSON2 1163 select ARCH_REQUIRE_GPIOLIB 1164 help 1165 The Loongson 2F processor implements the MIPS III instruction set 1166 with many extensions. 1167 1168 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1169 have a similar programming interface with FPGA northbridge used in 1170 Loongson2E. 1171 1172config CPU_LOONGSON1B 1173 bool "Loongson 1B" 1174 depends on SYS_HAS_CPU_LOONGSON1B 1175 select CPU_LOONGSON1 1176 help 1177 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1178 release 2 instruction set. 1179 1180config CPU_MIPS32_R1 1181 bool "MIPS32 Release 1" 1182 depends on SYS_HAS_CPU_MIPS32_R1 1183 select CPU_HAS_PREFETCH 1184 select CPU_SUPPORTS_32BIT_KERNEL 1185 select CPU_SUPPORTS_HIGHMEM 1186 help 1187 Choose this option to build a kernel for release 1 or later of the 1188 MIPS32 architecture. Most modern embedded systems with a 32-bit 1189 MIPS processor are based on a MIPS32 processor. If you know the 1190 specific type of processor in your system, choose those that one 1191 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1192 Release 2 of the MIPS32 architecture is available since several 1193 years so chances are you even have a MIPS32 Release 2 processor 1194 in which case you should choose CPU_MIPS32_R2 instead for better 1195 performance. 1196 1197config CPU_MIPS32_R2 1198 bool "MIPS32 Release 2" 1199 depends on SYS_HAS_CPU_MIPS32_R2 1200 select CPU_HAS_PREFETCH 1201 select CPU_SUPPORTS_32BIT_KERNEL 1202 select CPU_SUPPORTS_HIGHMEM 1203 select HAVE_KVM 1204 help 1205 Choose this option to build a kernel for release 2 or later of the 1206 MIPS32 architecture. Most modern embedded systems with a 32-bit 1207 MIPS processor are based on a MIPS32 processor. If you know the 1208 specific type of processor in your system, choose those that one 1209 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1210 1211config CPU_MIPS64_R1 1212 bool "MIPS64 Release 1" 1213 depends on SYS_HAS_CPU_MIPS64_R1 1214 select CPU_HAS_PREFETCH 1215 select CPU_SUPPORTS_32BIT_KERNEL 1216 select CPU_SUPPORTS_64BIT_KERNEL 1217 select CPU_SUPPORTS_HIGHMEM 1218 select CPU_SUPPORTS_HUGEPAGES 1219 help 1220 Choose this option to build a kernel for release 1 or later of the 1221 MIPS64 architecture. Many modern embedded systems with a 64-bit 1222 MIPS processor are based on a MIPS64 processor. If you know the 1223 specific type of processor in your system, choose those that one 1224 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1225 Release 2 of the MIPS64 architecture is available since several 1226 years so chances are you even have a MIPS64 Release 2 processor 1227 in which case you should choose CPU_MIPS64_R2 instead for better 1228 performance. 1229 1230config CPU_MIPS64_R2 1231 bool "MIPS64 Release 2" 1232 depends on SYS_HAS_CPU_MIPS64_R2 1233 select CPU_HAS_PREFETCH 1234 select CPU_SUPPORTS_32BIT_KERNEL 1235 select CPU_SUPPORTS_64BIT_KERNEL 1236 select CPU_SUPPORTS_HIGHMEM 1237 select CPU_SUPPORTS_HUGEPAGES 1238 help 1239 Choose this option to build a kernel for release 2 or later of the 1240 MIPS64 architecture. Many modern embedded systems with a 64-bit 1241 MIPS processor are based on a MIPS64 processor. If you know the 1242 specific type of processor in your system, choose those that one 1243 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1244 1245config CPU_R3000 1246 bool "R3000" 1247 depends on SYS_HAS_CPU_R3000 1248 select CPU_HAS_WB 1249 select CPU_SUPPORTS_32BIT_KERNEL 1250 select CPU_SUPPORTS_HIGHMEM 1251 help 1252 Please make sure to pick the right CPU type. Linux/MIPS is not 1253 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1254 *not* work on R4000 machines and vice versa. However, since most 1255 of the supported machines have an R4000 (or similar) CPU, R4x00 1256 might be a safe bet. If the resulting kernel does not work, 1257 try to recompile with R3000. 1258 1259config CPU_TX39XX 1260 bool "R39XX" 1261 depends on SYS_HAS_CPU_TX39XX 1262 select CPU_SUPPORTS_32BIT_KERNEL 1263 1264config CPU_VR41XX 1265 bool "R41xx" 1266 depends on SYS_HAS_CPU_VR41XX 1267 select CPU_SUPPORTS_32BIT_KERNEL 1268 select CPU_SUPPORTS_64BIT_KERNEL 1269 help 1270 The options selects support for the NEC VR4100 series of processors. 1271 Only choose this option if you have one of these processors as a 1272 kernel built with this option will not run on any other type of 1273 processor or vice versa. 1274 1275config CPU_R4300 1276 bool "R4300" 1277 depends on SYS_HAS_CPU_R4300 1278 select CPU_SUPPORTS_32BIT_KERNEL 1279 select CPU_SUPPORTS_64BIT_KERNEL 1280 help 1281 MIPS Technologies R4300-series processors. 1282 1283config CPU_R4X00 1284 bool "R4x00" 1285 depends on SYS_HAS_CPU_R4X00 1286 select CPU_SUPPORTS_32BIT_KERNEL 1287 select CPU_SUPPORTS_64BIT_KERNEL 1288 select CPU_SUPPORTS_HUGEPAGES 1289 help 1290 MIPS Technologies R4000-series processors other than 4300, including 1291 the R4000, R4400, R4600, and 4700. 1292 1293config CPU_TX49XX 1294 bool "R49XX" 1295 depends on SYS_HAS_CPU_TX49XX 1296 select CPU_HAS_PREFETCH 1297 select CPU_SUPPORTS_32BIT_KERNEL 1298 select CPU_SUPPORTS_64BIT_KERNEL 1299 select CPU_SUPPORTS_HUGEPAGES 1300 1301config CPU_R5000 1302 bool "R5000" 1303 depends on SYS_HAS_CPU_R5000 1304 select CPU_SUPPORTS_32BIT_KERNEL 1305 select CPU_SUPPORTS_64BIT_KERNEL 1306 select CPU_SUPPORTS_HUGEPAGES 1307 help 1308 MIPS Technologies R5000-series processors other than the Nevada. 1309 1310config CPU_R5432 1311 bool "R5432" 1312 depends on SYS_HAS_CPU_R5432 1313 select CPU_SUPPORTS_32BIT_KERNEL 1314 select CPU_SUPPORTS_64BIT_KERNEL 1315 select CPU_SUPPORTS_HUGEPAGES 1316 1317config CPU_R5500 1318 bool "R5500" 1319 depends on SYS_HAS_CPU_R5500 1320 select CPU_SUPPORTS_32BIT_KERNEL 1321 select CPU_SUPPORTS_64BIT_KERNEL 1322 select CPU_SUPPORTS_HUGEPAGES 1323 help 1324 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1325 instruction set. 1326 1327config CPU_R6000 1328 bool "R6000" 1329 depends on SYS_HAS_CPU_R6000 1330 select CPU_SUPPORTS_32BIT_KERNEL 1331 help 1332 MIPS Technologies R6000 and R6000A series processors. Note these 1333 processors are extremely rare and the support for them is incomplete. 1334 1335config CPU_NEVADA 1336 bool "RM52xx" 1337 depends on SYS_HAS_CPU_NEVADA 1338 select CPU_SUPPORTS_32BIT_KERNEL 1339 select CPU_SUPPORTS_64BIT_KERNEL 1340 select CPU_SUPPORTS_HUGEPAGES 1341 help 1342 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1343 1344config CPU_R8000 1345 bool "R8000" 1346 depends on SYS_HAS_CPU_R8000 1347 select CPU_HAS_PREFETCH 1348 select CPU_SUPPORTS_64BIT_KERNEL 1349 help 1350 MIPS Technologies R8000 processors. Note these processors are 1351 uncommon and the support for them is incomplete. 1352 1353config CPU_R10000 1354 bool "R10000" 1355 depends on SYS_HAS_CPU_R10000 1356 select CPU_HAS_PREFETCH 1357 select CPU_SUPPORTS_32BIT_KERNEL 1358 select CPU_SUPPORTS_64BIT_KERNEL 1359 select CPU_SUPPORTS_HIGHMEM 1360 select CPU_SUPPORTS_HUGEPAGES 1361 help 1362 MIPS Technologies R10000-series processors. 1363 1364config CPU_RM7000 1365 bool "RM7000" 1366 depends on SYS_HAS_CPU_RM7000 1367 select CPU_HAS_PREFETCH 1368 select CPU_SUPPORTS_32BIT_KERNEL 1369 select CPU_SUPPORTS_64BIT_KERNEL 1370 select CPU_SUPPORTS_HIGHMEM 1371 select CPU_SUPPORTS_HUGEPAGES 1372 1373config CPU_SB1 1374 bool "SB1" 1375 depends on SYS_HAS_CPU_SB1 1376 select CPU_SUPPORTS_32BIT_KERNEL 1377 select CPU_SUPPORTS_64BIT_KERNEL 1378 select CPU_SUPPORTS_HIGHMEM 1379 select CPU_SUPPORTS_HUGEPAGES 1380 select WEAK_ORDERING 1381 1382config CPU_CAVIUM_OCTEON 1383 bool "Cavium Octeon processor" 1384 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1385 select ARCH_SPARSEMEM_ENABLE 1386 select CPU_HAS_PREFETCH 1387 select CPU_SUPPORTS_64BIT_KERNEL 1388 select SYS_SUPPORTS_SMP 1389 select NR_CPUS_DEFAULT_16 1390 select WEAK_ORDERING 1391 select CPU_SUPPORTS_HIGHMEM 1392 select CPU_SUPPORTS_HUGEPAGES 1393 select LIBFDT 1394 select USE_OF 1395 select USB_EHCI_BIG_ENDIAN_MMIO 1396 help 1397 The Cavium Octeon processor is a highly integrated chip containing 1398 many ethernet hardware widgets for networking tasks. The processor 1399 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1400 Full details can be found at http://www.caviumnetworks.com. 1401 1402config CPU_BMIPS3300 1403 bool "BMIPS3300" 1404 depends on SYS_HAS_CPU_BMIPS3300 1405 select CPU_BMIPS 1406 help 1407 Broadcom BMIPS3300 processors. 1408 1409config CPU_BMIPS4350 1410 bool "BMIPS4350" 1411 depends on SYS_HAS_CPU_BMIPS4350 1412 select CPU_BMIPS 1413 select SYS_SUPPORTS_SMP 1414 select SYS_SUPPORTS_HOTPLUG_CPU 1415 help 1416 Broadcom BMIPS4350 ("VIPER") processors. 1417 1418config CPU_BMIPS4380 1419 bool "BMIPS4380" 1420 depends on SYS_HAS_CPU_BMIPS4380 1421 select CPU_BMIPS 1422 select SYS_SUPPORTS_SMP 1423 select SYS_SUPPORTS_HOTPLUG_CPU 1424 help 1425 Broadcom BMIPS4380 processors. 1426 1427config CPU_BMIPS5000 1428 bool "BMIPS5000" 1429 depends on SYS_HAS_CPU_BMIPS5000 1430 select CPU_BMIPS 1431 select CPU_SUPPORTS_HIGHMEM 1432 select MIPS_CPU_SCACHE 1433 select SYS_SUPPORTS_SMP 1434 select SYS_SUPPORTS_HOTPLUG_CPU 1435 help 1436 Broadcom BMIPS5000 processors. 1437 1438config CPU_XLR 1439 bool "Netlogic XLR SoC" 1440 depends on SYS_HAS_CPU_XLR 1441 select CPU_SUPPORTS_32BIT_KERNEL 1442 select CPU_SUPPORTS_64BIT_KERNEL 1443 select CPU_SUPPORTS_HIGHMEM 1444 select CPU_SUPPORTS_HUGEPAGES 1445 select WEAK_ORDERING 1446 select WEAK_REORDERING_BEYOND_LLSC 1447 help 1448 Netlogic Microsystems XLR/XLS processors. 1449 1450config CPU_XLP 1451 bool "Netlogic XLP SoC" 1452 depends on SYS_HAS_CPU_XLP 1453 select CPU_SUPPORTS_32BIT_KERNEL 1454 select CPU_SUPPORTS_64BIT_KERNEL 1455 select CPU_SUPPORTS_HIGHMEM 1456 select WEAK_ORDERING 1457 select WEAK_REORDERING_BEYOND_LLSC 1458 select CPU_HAS_PREFETCH 1459 select CPU_MIPSR2 1460 help 1461 Netlogic Microsystems XLP processors. 1462endchoice 1463 1464if CPU_LOONGSON2F 1465config CPU_NOP_WORKAROUNDS 1466 bool 1467 1468config CPU_JUMP_WORKAROUNDS 1469 bool 1470 1471config CPU_LOONGSON2F_WORKAROUNDS 1472 bool "Loongson 2F Workarounds" 1473 default y 1474 select CPU_NOP_WORKAROUNDS 1475 select CPU_JUMP_WORKAROUNDS 1476 help 1477 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1478 require workarounds. Without workarounds the system may hang 1479 unexpectedly. For more information please refer to the gas 1480 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1481 1482 Loongson 2F03 and later have fixed these issues and no workarounds 1483 are needed. The workarounds have no significant side effect on them 1484 but may decrease the performance of the system so this option should 1485 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1486 systems. 1487 1488 If unsure, please say Y. 1489endif # CPU_LOONGSON2F 1490 1491config SYS_SUPPORTS_ZBOOT 1492 bool 1493 select HAVE_KERNEL_GZIP 1494 select HAVE_KERNEL_BZIP2 1495 select HAVE_KERNEL_LZMA 1496 select HAVE_KERNEL_LZO 1497 1498config SYS_SUPPORTS_ZBOOT_UART16550 1499 bool 1500 select SYS_SUPPORTS_ZBOOT 1501 1502config CPU_LOONGSON2 1503 bool 1504 select CPU_SUPPORTS_32BIT_KERNEL 1505 select CPU_SUPPORTS_64BIT_KERNEL 1506 select CPU_SUPPORTS_HIGHMEM 1507 select CPU_SUPPORTS_HUGEPAGES 1508 1509config CPU_LOONGSON1 1510 bool 1511 select CPU_MIPS32 1512 select CPU_MIPSR2 1513 select CPU_HAS_PREFETCH 1514 select CPU_SUPPORTS_32BIT_KERNEL 1515 select CPU_SUPPORTS_HIGHMEM 1516 1517config CPU_BMIPS 1518 bool 1519 select CPU_MIPS32 1520 select CPU_SUPPORTS_32BIT_KERNEL 1521 select DMA_NONCOHERENT 1522 select IRQ_CPU 1523 select SWAP_IO_SPACE 1524 select WEAK_ORDERING 1525 1526config SYS_HAS_CPU_LOONGSON2E 1527 bool 1528 1529config SYS_HAS_CPU_LOONGSON2F 1530 bool 1531 select CPU_SUPPORTS_CPUFREQ 1532 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1533 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1534 1535config SYS_HAS_CPU_LOONGSON1B 1536 bool 1537 1538config SYS_HAS_CPU_MIPS32_R1 1539 bool 1540 1541config SYS_HAS_CPU_MIPS32_R2 1542 bool 1543 1544config SYS_HAS_CPU_MIPS64_R1 1545 bool 1546 1547config SYS_HAS_CPU_MIPS64_R2 1548 bool 1549 1550config SYS_HAS_CPU_R3000 1551 bool 1552 1553config SYS_HAS_CPU_TX39XX 1554 bool 1555 1556config SYS_HAS_CPU_VR41XX 1557 bool 1558 1559config SYS_HAS_CPU_R4300 1560 bool 1561 1562config SYS_HAS_CPU_R4X00 1563 bool 1564 1565config SYS_HAS_CPU_TX49XX 1566 bool 1567 1568config SYS_HAS_CPU_R5000 1569 bool 1570 1571config SYS_HAS_CPU_R5432 1572 bool 1573 1574config SYS_HAS_CPU_R5500 1575 bool 1576 1577config SYS_HAS_CPU_R6000 1578 bool 1579 1580config SYS_HAS_CPU_NEVADA 1581 bool 1582 1583config SYS_HAS_CPU_R8000 1584 bool 1585 1586config SYS_HAS_CPU_R10000 1587 bool 1588 1589config SYS_HAS_CPU_RM7000 1590 bool 1591 1592config SYS_HAS_CPU_SB1 1593 bool 1594 1595config SYS_HAS_CPU_CAVIUM_OCTEON 1596 bool 1597 1598config SYS_HAS_CPU_BMIPS3300 1599 bool 1600 1601config SYS_HAS_CPU_BMIPS4350 1602 bool 1603 1604config SYS_HAS_CPU_BMIPS4380 1605 bool 1606 1607config SYS_HAS_CPU_BMIPS5000 1608 bool 1609 1610config SYS_HAS_CPU_XLR 1611 bool 1612 1613config SYS_HAS_CPU_XLP 1614 bool 1615 1616# 1617# CPU may reorder R->R, R->W, W->R, W->W 1618# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1619# 1620config WEAK_ORDERING 1621 bool 1622 1623# 1624# CPU may reorder reads and writes beyond LL/SC 1625# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1626# 1627config WEAK_REORDERING_BEYOND_LLSC 1628 bool 1629endmenu 1630 1631# 1632# These two indicate any level of the MIPS32 and MIPS64 architecture 1633# 1634config CPU_MIPS32 1635 bool 1636 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1637 1638config CPU_MIPS64 1639 bool 1640 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1641 1642# 1643# These two indicate the revision of the architecture, either Release 1 or Release 2 1644# 1645config CPU_MIPSR1 1646 bool 1647 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1648 1649config CPU_MIPSR2 1650 bool 1651 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1652 1653config SYS_SUPPORTS_32BIT_KERNEL 1654 bool 1655config SYS_SUPPORTS_64BIT_KERNEL 1656 bool 1657config CPU_SUPPORTS_32BIT_KERNEL 1658 bool 1659config CPU_SUPPORTS_64BIT_KERNEL 1660 bool 1661config CPU_SUPPORTS_CPUFREQ 1662 bool 1663config CPU_SUPPORTS_ADDRWINCFG 1664 bool 1665config CPU_SUPPORTS_HUGEPAGES 1666 bool 1667config CPU_SUPPORTS_UNCACHED_ACCELERATED 1668 bool 1669config MIPS_PGD_C0_CONTEXT 1670 bool 1671 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1672 1673# 1674# Set to y for ptrace access to watch registers. 1675# 1676config HARDWARE_WATCHPOINTS 1677 bool 1678 default y if CPU_MIPSR1 || CPU_MIPSR2 1679 1680menu "Kernel type" 1681 1682choice 1683 prompt "Kernel code model" 1684 help 1685 You should only select this option if you have a workload that 1686 actually benefits from 64-bit processing or if your machine has 1687 large memory. You will only be presented a single option in this 1688 menu if your system does not support both 32-bit and 64-bit kernels. 1689 1690config 32BIT 1691 bool "32-bit kernel" 1692 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1693 select TRAD_SIGNALS 1694 help 1695 Select this option if you want to build a 32-bit kernel. 1696config 64BIT 1697 bool "64-bit kernel" 1698 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1699 help 1700 Select this option if you want to build a 64-bit kernel. 1701 1702endchoice 1703 1704config KVM_GUEST 1705 bool "KVM Guest Kernel" 1706 depends on BROKEN_ON_SMP 1707 help 1708 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1709 1710config KVM_HOST_FREQ 1711 int "KVM Host Processor Frequency (MHz)" 1712 depends on KVM_GUEST 1713 default 500 1714 help 1715 Select this option if building a guest kernel for KVM to skip 1716 RTC emulation when determining guest CPU Frequency. Instead, the guest 1717 processor frequency is automatically derived from the host frequency. 1718 1719choice 1720 prompt "Kernel page size" 1721 default PAGE_SIZE_4KB 1722 1723config PAGE_SIZE_4KB 1724 bool "4kB" 1725 depends on !CPU_LOONGSON2 1726 help 1727 This option select the standard 4kB Linux page size. On some 1728 R3000-family processors this is the only available page size. Using 1729 4kB page size will minimize memory consumption and is therefore 1730 recommended for low memory systems. 1731 1732config PAGE_SIZE_8KB 1733 bool "8kB" 1734 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1735 help 1736 Using 8kB page size will result in higher performance kernel at 1737 the price of higher memory consumption. This option is available 1738 only on R8000 and cnMIPS processors. Note that you will need a 1739 suitable Linux distribution to support this. 1740 1741config PAGE_SIZE_16KB 1742 bool "16kB" 1743 depends on !CPU_R3000 && !CPU_TX39XX 1744 help 1745 Using 16kB page size will result in higher performance kernel at 1746 the price of higher memory consumption. This option is available on 1747 all non-R3000 family processors. Note that you will need a suitable 1748 Linux distribution to support this. 1749 1750config PAGE_SIZE_32KB 1751 bool "32kB" 1752 depends on CPU_CAVIUM_OCTEON 1753 help 1754 Using 32kB page size will result in higher performance kernel at 1755 the price of higher memory consumption. This option is available 1756 only on cnMIPS cores. Note that you will need a suitable Linux 1757 distribution to support this. 1758 1759config PAGE_SIZE_64KB 1760 bool "64kB" 1761 depends on !CPU_R3000 && !CPU_TX39XX 1762 help 1763 Using 64kB page size will result in higher performance kernel at 1764 the price of higher memory consumption. This option is available on 1765 all non-R3000 family processor. Not that at the time of this 1766 writing this option is still high experimental. 1767 1768endchoice 1769 1770config FORCE_MAX_ZONEORDER 1771 int "Maximum zone order" 1772 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1773 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1774 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1775 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1776 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1777 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1778 range 11 64 1779 default "11" 1780 help 1781 The kernel memory allocator divides physically contiguous memory 1782 blocks into "zones", where each zone is a power of two number of 1783 pages. This option selects the largest power of two that the kernel 1784 keeps in the memory allocator. If you need to allocate very large 1785 blocks of physically contiguous memory, then you may need to 1786 increase this value. 1787 1788 This config option is actually maximum order plus one. For example, 1789 a value of 11 means that the largest free memory block is 2^10 pages. 1790 1791 The page size is not necessarily 4KB. Keep this in mind 1792 when choosing a value for this option. 1793 1794config CEVT_GIC 1795 bool "Use GIC global counter for clock events" 1796 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1797 help 1798 Use the GIC global counter for the clock events. The R4K clock 1799 event driver is always present, so if the platform ends up not 1800 detecting a GIC, it will fall back to the R4K timer for the 1801 generation of clock events. 1802 1803config BOARD_SCACHE 1804 bool 1805 1806config IP22_CPU_SCACHE 1807 bool 1808 select BOARD_SCACHE 1809 1810# 1811# Support for a MIPS32 / MIPS64 style S-caches 1812# 1813config MIPS_CPU_SCACHE 1814 bool 1815 select BOARD_SCACHE 1816 1817config R5000_CPU_SCACHE 1818 bool 1819 select BOARD_SCACHE 1820 1821config RM7000_CPU_SCACHE 1822 bool 1823 select BOARD_SCACHE 1824 1825config SIBYTE_DMA_PAGEOPS 1826 bool "Use DMA to clear/copy pages" 1827 depends on CPU_SB1 1828 help 1829 Instead of using the CPU to zero and copy pages, use a Data Mover 1830 channel. These DMA channels are otherwise unused by the standard 1831 SiByte Linux port. Seems to give a small performance benefit. 1832 1833config CPU_HAS_PREFETCH 1834 bool 1835 1836config CPU_GENERIC_DUMP_TLB 1837 bool 1838 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1839 1840config CPU_R4K_FPU 1841 bool 1842 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1843 1844config CPU_R4K_CACHE_TLB 1845 bool 1846 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1847 1848choice 1849 prompt "MIPS MT options" 1850 1851config MIPS_MT_DISABLED 1852 bool "Disable multithreading support." 1853 help 1854 Use this option if your workload can't take advantage of 1855 MIPS hardware multithreading support. On systems that don't have 1856 the option of an MT-enabled processor this option will be the only 1857 option in this menu. 1858 1859config MIPS_MT_SMP 1860 bool "Use 1 TC on each available VPE for SMP" 1861 depends on SYS_SUPPORTS_MULTITHREADING 1862 select CPU_MIPSR2_IRQ_VI 1863 select CPU_MIPSR2_IRQ_EI 1864 select MIPS_MT 1865 select NR_CPUS_DEFAULT_2 1866 select SMP 1867 select SYS_SUPPORTS_SCHED_SMT if SMP 1868 select SYS_SUPPORTS_SMP 1869 select SMP_UP 1870 select MIPS_PERF_SHARED_TC_COUNTERS 1871 help 1872 This is a kernel model which is known a VSMP but lately has been 1873 marketesed into SMVP. 1874 Virtual SMP uses the processor's VPEs to implement virtual 1875 processors. In currently available configuration of the 34K processor 1876 this allows for a dual processor. Both processors will share the same 1877 primary caches; each will obtain the half of the TLB for it's own 1878 exclusive use. For a layman this model can be described as similar to 1879 what Intel calls Hyperthreading. 1880 1881 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1882 1883config MIPS_MT_SMTC 1884 bool "SMTC: Use all TCs on all VPEs for SMP" 1885 depends on CPU_MIPS32_R2 1886 #depends on CPU_MIPS64_R2 # once there is hardware ... 1887 depends on SYS_SUPPORTS_MULTITHREADING 1888 select CPU_MIPSR2_IRQ_VI 1889 select CPU_MIPSR2_IRQ_EI 1890 select MIPS_MT 1891 select NR_CPUS_DEFAULT_8 1892 select SMP 1893 select SYS_SUPPORTS_SMP 1894 select SMP_UP 1895 help 1896 This is a kernel model which is known a SMTC or lately has been 1897 marketesed into SMVP. 1898 is presenting the available TC's of the core as processors to Linux. 1899 On currently available 34K processors this means a Linux system will 1900 see up to 5 processors. The implementation of the SMTC kernel differs 1901 significantly from VSMP and cannot efficiently coexist in the same 1902 kernel binary so the choice between VSMP and SMTC is a compile time 1903 decision. 1904 1905 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1906 1907endchoice 1908 1909config MIPS_MT 1910 bool 1911 1912config SCHED_SMT 1913 bool "SMT (multithreading) scheduler support" 1914 depends on SYS_SUPPORTS_SCHED_SMT 1915 default n 1916 help 1917 SMT scheduler support improves the CPU scheduler's decision making 1918 when dealing with MIPS MT enabled cores at a cost of slightly 1919 increased overhead in some places. If unsure say N here. 1920 1921config SYS_SUPPORTS_SCHED_SMT 1922 bool 1923 1924config SYS_SUPPORTS_MULTITHREADING 1925 bool 1926 1927config MIPS_MT_FPAFF 1928 bool "Dynamic FPU affinity for FP-intensive threads" 1929 default y 1930 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1931 1932config MIPS_VPE_LOADER 1933 bool "VPE loader support." 1934 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 1935 select CPU_MIPSR2_IRQ_VI 1936 select CPU_MIPSR2_IRQ_EI 1937 select MIPS_MT 1938 help 1939 Includes a loader for loading an elf relocatable object 1940 onto another VPE and running it. 1941 1942config MIPS_MT_SMTC_IM_BACKSTOP 1943 bool "Use per-TC register bits as backstop for inhibited IM bits" 1944 depends on MIPS_MT_SMTC 1945 default n 1946 help 1947 To support multiple TC microthreads acting as "CPUs" within 1948 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1949 during interrupt handling. To support legacy drivers and interrupt 1950 controller management code, SMTC has a "backstop" to track and 1951 if necessary restore the interrupt mask. This has some performance 1952 impact on interrupt service overhead. 1953 1954config MIPS_MT_SMTC_IRQAFF 1955 bool "Support IRQ affinity API" 1956 depends on MIPS_MT_SMTC 1957 default n 1958 help 1959 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1960 for SMTC Linux kernel. Requires platform support, of which 1961 an example can be found in the MIPS kernel i8259 and Malta 1962 platform code. Adds some overhead to interrupt dispatch, and 1963 should be used only if you know what you are doing. 1964 1965config MIPS_VPE_LOADER_TOM 1966 bool "Load VPE program into memory hidden from linux" 1967 depends on MIPS_VPE_LOADER 1968 default y 1969 help 1970 The loader can use memory that is present but has been hidden from 1971 Linux using the kernel command line option "mem=xxMB". It's up to 1972 you to ensure the amount you put in the option and the space your 1973 program requires is less or equal to the amount physically present. 1974 1975# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1976config MIPS_VPE_APSP_API 1977 bool "Enable support for AP/SP API (RTLX)" 1978 depends on MIPS_VPE_LOADER 1979 help 1980 1981config MIPS_CMP 1982 bool "MIPS CMP framework support" 1983 depends on SYS_SUPPORTS_MIPS_CMP 1984 select SYNC_R4K 1985 select SYS_SUPPORTS_SMP 1986 select SYS_SUPPORTS_SCHED_SMT if SMP 1987 select WEAK_ORDERING 1988 default n 1989 help 1990 This is a placeholder option for the GCMP work. It will need to 1991 be handled differently... 1992 1993config SB1_PASS_1_WORKAROUNDS 1994 bool 1995 depends on CPU_SB1_PASS_1 1996 default y 1997 1998config SB1_PASS_2_WORKAROUNDS 1999 bool 2000 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2001 default y 2002 2003config SB1_PASS_2_1_WORKAROUNDS 2004 bool 2005 depends on CPU_SB1 && CPU_SB1_PASS_2 2006 default y 2007 2008 2009config 64BIT_PHYS_ADDR 2010 bool 2011 2012config ARCH_PHYS_ADDR_T_64BIT 2013 def_bool 64BIT_PHYS_ADDR 2014 2015config CPU_HAS_SMARTMIPS 2016 depends on SYS_SUPPORTS_SMARTMIPS 2017 bool "Support for the SmartMIPS ASE" 2018 help 2019 SmartMIPS is a extension of the MIPS32 architecture aimed at 2020 increased security at both hardware and software level for 2021 smartcards. Enabling this option will allow proper use of the 2022 SmartMIPS instructions by Linux applications. However a kernel with 2023 this option will not work on a MIPS core without SmartMIPS core. If 2024 you don't know you probably don't have SmartMIPS and should say N 2025 here. 2026 2027config CPU_MICROMIPS 2028 depends on SYS_SUPPORTS_MICROMIPS 2029 bool "Build kernel using microMIPS ISA" 2030 help 2031 When this option is enabled the kernel will be built using the 2032 microMIPS ISA 2033 2034config CPU_HAS_WB 2035 bool 2036 2037config XKS01 2038 bool 2039 2040# 2041# Vectored interrupt mode is an R2 feature 2042# 2043config CPU_MIPSR2_IRQ_VI 2044 bool 2045 2046# 2047# Extended interrupt mode is an R2 feature 2048# 2049config CPU_MIPSR2_IRQ_EI 2050 bool 2051 2052config CPU_HAS_SYNC 2053 bool 2054 depends on !CPU_R3000 2055 default y 2056 2057# 2058# CPU non-features 2059# 2060config CPU_DADDI_WORKAROUNDS 2061 bool 2062 2063config CPU_R4000_WORKAROUNDS 2064 bool 2065 select CPU_R4400_WORKAROUNDS 2066 2067config CPU_R4400_WORKAROUNDS 2068 bool 2069 2070# 2071# - Highmem only makes sense for the 32-bit kernel. 2072# - The current highmem code will only work properly on physically indexed 2073# caches such as R3000, SB1, R7000 or those that look like they're virtually 2074# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2075# moment we protect the user and offer the highmem option only on machines 2076# where it's known to be safe. This will not offer highmem on a few systems 2077# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2078# indexed CPUs but we're playing safe. 2079# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2080# know they might have memory configurations that could make use of highmem 2081# support. 2082# 2083config HIGHMEM 2084 bool "High Memory Support" 2085 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2086 2087config CPU_SUPPORTS_HIGHMEM 2088 bool 2089 2090config SYS_SUPPORTS_HIGHMEM 2091 bool 2092 2093config SYS_SUPPORTS_SMARTMIPS 2094 bool 2095 2096config SYS_SUPPORTS_MICROMIPS 2097 bool 2098 2099config ARCH_FLATMEM_ENABLE 2100 def_bool y 2101 depends on !NUMA && !CPU_LOONGSON2 2102 2103config ARCH_DISCONTIGMEM_ENABLE 2104 bool 2105 default y if SGI_IP27 2106 help 2107 Say Y to support efficient handling of discontiguous physical memory, 2108 for architectures which are either NUMA (Non-Uniform Memory Access) 2109 or have huge holes in the physical address space for other reasons. 2110 See <file:Documentation/vm/numa> for more. 2111 2112config ARCH_SPARSEMEM_ENABLE 2113 bool 2114 select SPARSEMEM_STATIC 2115 2116config NUMA 2117 bool "NUMA Support" 2118 depends on SYS_SUPPORTS_NUMA 2119 help 2120 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2121 Access). This option improves performance on systems with more 2122 than two nodes; on two node systems it is generally better to 2123 leave it disabled; on single node systems disable this option 2124 disabled. 2125 2126config SYS_SUPPORTS_NUMA 2127 bool 2128 2129config NODES_SHIFT 2130 int 2131 default "6" 2132 depends on NEED_MULTIPLE_NODES 2133 2134config HW_PERF_EVENTS 2135 bool "Enable hardware performance counter support for perf events" 2136 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2137 default y 2138 help 2139 Enable hardware performance counter support for perf events. If 2140 disabled, perf events will use software events only. 2141 2142source "mm/Kconfig" 2143 2144config SMP 2145 bool "Multi-Processing support" 2146 depends on SYS_SUPPORTS_SMP 2147 select USE_GENERIC_SMP_HELPERS 2148 help 2149 This enables support for systems with more than one CPU. If you have 2150 a system with only one CPU, like most personal computers, say N. If 2151 you have a system with more than one CPU, say Y. 2152 2153 If you say N here, the kernel will run on single and multiprocessor 2154 machines, but will use only one CPU of a multiprocessor machine. If 2155 you say Y here, the kernel will run on many, but not all, 2156 singleprocessor machines. On a singleprocessor machine, the kernel 2157 will run faster if you say N here. 2158 2159 People using multiprocessor machines who say Y here should also say 2160 Y to "Enhanced Real Time Clock Support", below. 2161 2162 See also the SMP-HOWTO available at 2163 <http://www.tldp.org/docs.html#howto>. 2164 2165 If you don't know what to do here, say N. 2166 2167config SMP_UP 2168 bool 2169 2170config SYS_SUPPORTS_MIPS_CMP 2171 bool 2172 2173config SYS_SUPPORTS_SMP 2174 bool 2175 2176config NR_CPUS_DEFAULT_1 2177 bool 2178 2179config NR_CPUS_DEFAULT_2 2180 bool 2181 2182config NR_CPUS_DEFAULT_4 2183 bool 2184 2185config NR_CPUS_DEFAULT_8 2186 bool 2187 2188config NR_CPUS_DEFAULT_16 2189 bool 2190 2191config NR_CPUS_DEFAULT_32 2192 bool 2193 2194config NR_CPUS_DEFAULT_64 2195 bool 2196 2197config NR_CPUS 2198 int "Maximum number of CPUs (2-64)" 2199 range 1 64 if NR_CPUS_DEFAULT_1 2200 depends on SMP 2201 default "1" if NR_CPUS_DEFAULT_1 2202 default "2" if NR_CPUS_DEFAULT_2 2203 default "4" if NR_CPUS_DEFAULT_4 2204 default "8" if NR_CPUS_DEFAULT_8 2205 default "16" if NR_CPUS_DEFAULT_16 2206 default "32" if NR_CPUS_DEFAULT_32 2207 default "64" if NR_CPUS_DEFAULT_64 2208 help 2209 This allows you to specify the maximum number of CPUs which this 2210 kernel will support. The maximum supported value is 32 for 32-bit 2211 kernel and 64 for 64-bit kernels; the minimum value which makes 2212 sense is 1 for Qemu (useful only for kernel debugging purposes) 2213 and 2 for all others. 2214 2215 This is purely to save memory - each supported CPU adds 2216 approximately eight kilobytes to the kernel image. For best 2217 performance should round up your number of processors to the next 2218 power of two. 2219 2220config MIPS_PERF_SHARED_TC_COUNTERS 2221 bool 2222 2223# 2224# Timer Interrupt Frequency Configuration 2225# 2226 2227choice 2228 prompt "Timer frequency" 2229 default HZ_250 2230 help 2231 Allows the configuration of the timer frequency. 2232 2233 config HZ_48 2234 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2235 2236 config HZ_100 2237 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2238 2239 config HZ_128 2240 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2241 2242 config HZ_250 2243 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2244 2245 config HZ_256 2246 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2247 2248 config HZ_1000 2249 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2250 2251 config HZ_1024 2252 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2253 2254endchoice 2255 2256config SYS_SUPPORTS_48HZ 2257 bool 2258 2259config SYS_SUPPORTS_100HZ 2260 bool 2261 2262config SYS_SUPPORTS_128HZ 2263 bool 2264 2265config SYS_SUPPORTS_250HZ 2266 bool 2267 2268config SYS_SUPPORTS_256HZ 2269 bool 2270 2271config SYS_SUPPORTS_1000HZ 2272 bool 2273 2274config SYS_SUPPORTS_1024HZ 2275 bool 2276 2277config SYS_SUPPORTS_ARBIT_HZ 2278 bool 2279 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2280 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2281 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2282 !SYS_SUPPORTS_1024HZ 2283 2284config HZ 2285 int 2286 default 48 if HZ_48 2287 default 100 if HZ_100 2288 default 128 if HZ_128 2289 default 250 if HZ_250 2290 default 256 if HZ_256 2291 default 1000 if HZ_1000 2292 default 1024 if HZ_1024 2293 2294source "kernel/Kconfig.preempt" 2295 2296config KEXEC 2297 bool "Kexec system call" 2298 help 2299 kexec is a system call that implements the ability to shutdown your 2300 current kernel, and to start another kernel. It is like a reboot 2301 but it is independent of the system firmware. And like a reboot 2302 you can start any kernel with it, not just Linux. 2303 2304 The name comes from the similarity to the exec system call. 2305 2306 It is an ongoing process to be certain the hardware in a machine 2307 is properly shutdown, so do not be surprised if this code does not 2308 initially work for you. It may help to enable device hotplugging 2309 support. As of this writing the exact hardware interface is 2310 strongly in flux, so no good recommendation can be made. 2311 2312config CRASH_DUMP 2313 bool "Kernel crash dumps" 2314 help 2315 Generate crash dump after being started by kexec. 2316 This should be normally only set in special crash dump kernels 2317 which are loaded in the main kernel with kexec-tools into 2318 a specially reserved region and then later executed after 2319 a crash by kdump/kexec. The crash dump kernel must be compiled 2320 to a memory address not used by the main kernel or firmware using 2321 PHYSICAL_START. 2322 2323config PHYSICAL_START 2324 hex "Physical address where the kernel is loaded" 2325 default "0xffffffff84000000" if 64BIT 2326 default "0x84000000" if 32BIT 2327 depends on CRASH_DUMP 2328 help 2329 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2330 If you plan to use kernel for capturing the crash dump change 2331 this value to start of the reserved region (the "X" value as 2332 specified in the "crashkernel=YM@XM" command line boot parameter 2333 passed to the panic-ed kernel). 2334 2335config SECCOMP 2336 bool "Enable seccomp to safely compute untrusted bytecode" 2337 depends on PROC_FS 2338 default y 2339 help 2340 This kernel feature is useful for number crunching applications 2341 that may need to compute untrusted bytecode during their 2342 execution. By using pipes or other transports made available to 2343 the process as file descriptors supporting the read/write 2344 syscalls, it's possible to isolate those applications in 2345 their own address space using seccomp. Once seccomp is 2346 enabled via /proc/<pid>/seccomp, it cannot be disabled 2347 and the task is only allowed to execute a few safe syscalls 2348 defined by each seccomp mode. 2349 2350 If unsure, say Y. Only embedded should say N here. 2351 2352config CC_STACKPROTECTOR 2353 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" 2354 help 2355 This option turns on the -fstack-protector GCC feature. This 2356 feature puts, at the beginning of functions, a canary value on 2357 the stack just before the return address, and validates 2358 the value just before actually returning. Stack based buffer 2359 overflows (that need to overwrite this return address) now also 2360 overwrite the canary, which gets detected and the attack is then 2361 neutralized via a kernel panic. 2362 2363 This feature requires gcc version 4.2 or above. 2364 2365config USE_OF 2366 bool 2367 select OF 2368 select OF_EARLY_FLATTREE 2369 select IRQ_DOMAIN 2370 2371endmenu 2372 2373config LOCKDEP_SUPPORT 2374 bool 2375 default y 2376 2377config STACKTRACE_SUPPORT 2378 bool 2379 default y 2380 2381source "init/Kconfig" 2382 2383source "kernel/Kconfig.freezer" 2384 2385menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2386 2387config HW_HAS_EISA 2388 bool 2389config HW_HAS_PCI 2390 bool 2391 2392config PCI 2393 bool "Support for PCI controller" 2394 depends on HW_HAS_PCI 2395 select PCI_DOMAINS 2396 select NO_GENERIC_PCI_IOPORT_MAP 2397 help 2398 Find out whether you have a PCI motherboard. PCI is the name of a 2399 bus system, i.e. the way the CPU talks to the other stuff inside 2400 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2401 say Y, otherwise N. 2402 2403config PCI_DOMAINS 2404 bool 2405 2406source "drivers/pci/Kconfig" 2407 2408source "drivers/pci/pcie/Kconfig" 2409 2410# 2411# ISA support is now enabled via select. Too many systems still have the one 2412# or other ISA chip on the board that users don't know about so don't expect 2413# users to choose the right thing ... 2414# 2415config ISA 2416 bool 2417 2418config EISA 2419 bool "EISA support" 2420 depends on HW_HAS_EISA 2421 select ISA 2422 select GENERIC_ISA_DMA 2423 ---help--- 2424 The Extended Industry Standard Architecture (EISA) bus was 2425 developed as an open alternative to the IBM MicroChannel bus. 2426 2427 The EISA bus provided some of the features of the IBM MicroChannel 2428 bus while maintaining backward compatibility with cards made for 2429 the older ISA bus. The EISA bus saw limited use between 1988 and 2430 1995 when it was made obsolete by the PCI bus. 2431 2432 Say Y here if you are building a kernel for an EISA-based machine. 2433 2434 Otherwise, say N. 2435 2436source "drivers/eisa/Kconfig" 2437 2438config TC 2439 bool "TURBOchannel support" 2440 depends on MACH_DECSTATION 2441 help 2442 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2443 processors. TURBOchannel programming specifications are available 2444 at: 2445 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2446 and: 2447 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2448 Linux driver support status is documented at: 2449 <http://www.linux-mips.org/wiki/DECstation> 2450 2451config MMU 2452 bool 2453 default y 2454 2455config I8253 2456 bool 2457 select CLKSRC_I8253 2458 select CLKEVT_I8253 2459 select MIPS_EXTERNAL_TIMER 2460 2461config ZONE_DMA 2462 bool 2463 2464config ZONE_DMA32 2465 bool 2466 2467source "drivers/pcmcia/Kconfig" 2468 2469source "drivers/pci/hotplug/Kconfig" 2470 2471config RAPIDIO 2472 bool "RapidIO support" 2473 depends on PCI 2474 default n 2475 help 2476 If you say Y here, the kernel will include drivers and 2477 infrastructure code to support RapidIO interconnect devices. 2478 2479source "drivers/rapidio/Kconfig" 2480 2481endmenu 2482 2483menu "Executable file formats" 2484 2485source "fs/Kconfig.binfmt" 2486 2487config TRAD_SIGNALS 2488 bool 2489 2490config MIPS32_COMPAT 2491 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2492 depends on 64BIT 2493 help 2494 Select this option if you want Linux/MIPS 32-bit binary 2495 compatibility. Since all software available for Linux/MIPS is 2496 currently 32-bit you should say Y here. 2497 2498config COMPAT 2499 bool 2500 depends on MIPS32_COMPAT 2501 select ARCH_WANT_OLD_COMPAT_IPC 2502 default y 2503 2504config SYSVIPC_COMPAT 2505 bool 2506 depends on COMPAT && SYSVIPC 2507 default y 2508 2509config MIPS32_O32 2510 bool "Kernel support for o32 binaries" 2511 depends on MIPS32_COMPAT 2512 help 2513 Select this option if you want to run o32 binaries. These are pure 2514 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2515 existing binaries are in this format. 2516 2517 If unsure, say Y. 2518 2519config MIPS32_N32 2520 bool "Kernel support for n32 binaries" 2521 depends on MIPS32_COMPAT 2522 help 2523 Select this option if you want to run n32 binaries. These are 2524 64-bit binaries using 32-bit quantities for addressing and certain 2525 data that would normally be 64-bit. They are used in special 2526 cases. 2527 2528 If unsure, say N. 2529 2530config BINFMT_ELF32 2531 bool 2532 default y if MIPS32_O32 || MIPS32_N32 2533 2534endmenu 2535 2536menu "Power management options" 2537 2538config ARCH_HIBERNATION_POSSIBLE 2539 def_bool y 2540 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2541 2542config ARCH_SUSPEND_POSSIBLE 2543 def_bool y 2544 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2545 2546source "kernel/power/Kconfig" 2547 2548endmenu 2549 2550config MIPS_EXTERNAL_TIMER 2551 bool 2552 2553if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2554menu "CPU Power Management" 2555source "drivers/cpufreq/Kconfig" 2556endmenu 2557endif 2558 2559source "net/Kconfig" 2560 2561source "drivers/Kconfig" 2562 2563source "drivers/firmware/Kconfig" 2564 2565source "fs/Kconfig" 2566 2567source "arch/mips/Kconfig.debug" 2568 2569source "security/Kconfig" 2570 2571source "crypto/Kconfig" 2572 2573source "lib/Kconfig" 2574 2575source "arch/mips/kvm/Kconfig" 2576