1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_SUPPORTS_UPROBES 11 select ARCH_USE_BUILTIN_BSWAP 12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 13 select ARCH_USE_QUEUED_RWLOCKS 14 select ARCH_USE_QUEUED_SPINLOCKS 15 select ARCH_WANT_IPC_PARSE_VERSION 16 select BUILDTIME_EXTABLE_SORT 17 select CLONE_BACKWARDS 18 select CPU_PM if CPU_IDLE 19 select DMA_DIRECT_OPS 20 select GENERIC_ATOMIC64 if !64BIT 21 select GENERIC_CLOCKEVENTS 22 select GENERIC_CMOS_UPDATE 23 select GENERIC_CPU_AUTOPROBE 24 select GENERIC_IRQ_PROBE 25 select GENERIC_IRQ_SHOW 26 select GENERIC_LIB_ASHLDI3 27 select GENERIC_LIB_ASHRDI3 28 select GENERIC_LIB_CMPDI2 29 select GENERIC_LIB_LSHRDI3 30 select GENERIC_LIB_UCMPDI2 31 select GENERIC_PCI_IOMAP 32 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 33 select GENERIC_SMP_IDLE_THREAD 34 select GENERIC_TIME_VSYSCALL 35 select HANDLE_DOMAIN_IRQ 36 select HAVE_ARCH_COMPILER_H 37 select HAVE_ARCH_JUMP_LABEL 38 select HAVE_ARCH_KGDB 39 select HAVE_ARCH_MMAP_RND_BITS if MMU 40 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 41 select HAVE_ARCH_SECCOMP_FILTER 42 select HAVE_ARCH_TRACEHOOK 43 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 44 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 45 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 46 select HAVE_CONTEXT_TRACKING 47 select HAVE_COPY_THREAD_TLS 48 select HAVE_C_RECORDMCOUNT 49 select HAVE_DEBUG_KMEMLEAK 50 select HAVE_DEBUG_STACKOVERFLOW 51 select HAVE_DMA_CONTIGUOUS 52 select HAVE_DYNAMIC_FTRACE 53 select HAVE_EXIT_THREAD 54 select HAVE_FTRACE_MCOUNT_RECORD 55 select HAVE_FUNCTION_GRAPH_TRACER 56 select HAVE_FUNCTION_TRACER 57 select HAVE_GENERIC_DMA_COHERENT 58 select HAVE_IDE 59 select HAVE_IRQ_EXIT_ON_IRQ_STACK 60 select HAVE_IRQ_TIME_ACCOUNTING 61 select HAVE_KPROBES 62 select HAVE_KRETPROBES 63 select HAVE_MEMBLOCK 64 select HAVE_MEMBLOCK_NODE_MAP 65 select HAVE_MOD_ARCH_SPECIFIC 66 select HAVE_NMI 67 select HAVE_OPROFILE 68 select HAVE_PERF_EVENTS 69 select HAVE_REGS_AND_STACK_ACCESS_API 70 select HAVE_RSEQ 71 select HAVE_STACKPROTECTOR 72 select HAVE_SYSCALL_TRACEPOINTS 73 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 74 select IRQ_FORCED_THREADING 75 select MODULES_USE_ELF_RELA if MODULES && 64BIT 76 select MODULES_USE_ELF_REL if MODULES 77 select PERF_USE_VMALLOC 78 select RTC_LIB if !MACH_LOONGSON64 79 select SYSCTL_EXCEPTION_TRACE 80 select VIRT_TO_BUS 81 82menu "Machine selection" 83 84choice 85 prompt "System type" 86 default MIPS_GENERIC 87 88config MIPS_GENERIC 89 bool "Generic board-agnostic MIPS kernel" 90 select BOOT_RAW 91 select BUILTIN_DTB 92 select CEVT_R4K 93 select CLKSRC_MIPS_GIC 94 select COMMON_CLK 95 select CPU_MIPSR2_IRQ_VI 96 select CPU_MIPSR2_IRQ_EI 97 select CSRC_R4K 98 select DMA_PERDEV_COHERENT 99 select HW_HAS_PCI 100 select IRQ_MIPS_CPU 101 select LIBFDT 102 select MIPS_AUTO_PFN_OFFSET 103 select MIPS_CPU_SCACHE 104 select MIPS_GIC 105 select MIPS_L1_CACHE_SHIFT_7 106 select NO_EXCEPT_FILL 107 select PCI_DRIVERS_GENERIC 108 select PINCTRL 109 select SMP_UP if SMP 110 select SWAP_IO_SPACE 111 select SYS_HAS_CPU_MIPS32_R1 112 select SYS_HAS_CPU_MIPS32_R2 113 select SYS_HAS_CPU_MIPS32_R6 114 select SYS_HAS_CPU_MIPS64_R1 115 select SYS_HAS_CPU_MIPS64_R2 116 select SYS_HAS_CPU_MIPS64_R6 117 select SYS_SUPPORTS_32BIT_KERNEL 118 select SYS_SUPPORTS_64BIT_KERNEL 119 select SYS_SUPPORTS_BIG_ENDIAN 120 select SYS_SUPPORTS_HIGHMEM 121 select SYS_SUPPORTS_LITTLE_ENDIAN 122 select SYS_SUPPORTS_MICROMIPS 123 select SYS_SUPPORTS_MIPS_CPS 124 select SYS_SUPPORTS_MIPS16 125 select SYS_SUPPORTS_MULTITHREADING 126 select SYS_SUPPORTS_RELOCATABLE 127 select SYS_SUPPORTS_SMARTMIPS 128 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 129 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 130 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 131 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 132 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 133 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 134 select USE_OF 135 help 136 Select this to build a kernel which aims to support multiple boards, 137 generally using a flattened device tree passed from the bootloader 138 using the boot protocol defined in the UHI (Unified Hosting 139 Interface) specification. 140 141config MIPS_ALCHEMY 142 bool "Alchemy processor based machines" 143 select PHYS_ADDR_T_64BIT 144 select CEVT_R4K 145 select CSRC_R4K 146 select IRQ_MIPS_CPU 147 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 148 select SYS_HAS_CPU_MIPS32_R1 149 select SYS_SUPPORTS_32BIT_KERNEL 150 select SYS_SUPPORTS_APM_EMULATION 151 select GPIOLIB 152 select SYS_SUPPORTS_ZBOOT 153 select COMMON_CLK 154 155config AR7 156 bool "Texas Instruments AR7" 157 select BOOT_ELF32 158 select DMA_NONCOHERENT 159 select CEVT_R4K 160 select CSRC_R4K 161 select IRQ_MIPS_CPU 162 select NO_EXCEPT_FILL 163 select SWAP_IO_SPACE 164 select SYS_HAS_CPU_MIPS32_R1 165 select SYS_HAS_EARLY_PRINTK 166 select SYS_SUPPORTS_32BIT_KERNEL 167 select SYS_SUPPORTS_LITTLE_ENDIAN 168 select SYS_SUPPORTS_MIPS16 169 select SYS_SUPPORTS_ZBOOT_UART16550 170 select GPIOLIB 171 select VLYNQ 172 select HAVE_CLK 173 help 174 Support for the Texas Instruments AR7 System-on-a-Chip 175 family: TNETD7100, 7200 and 7300. 176 177config ATH25 178 bool "Atheros AR231x/AR531x SoC support" 179 select CEVT_R4K 180 select CSRC_R4K 181 select DMA_NONCOHERENT 182 select IRQ_MIPS_CPU 183 select IRQ_DOMAIN 184 select SYS_HAS_CPU_MIPS32_R1 185 select SYS_SUPPORTS_BIG_ENDIAN 186 select SYS_SUPPORTS_32BIT_KERNEL 187 select SYS_HAS_EARLY_PRINTK 188 help 189 Support for Atheros AR231x and Atheros AR531x based boards 190 191config ATH79 192 bool "Atheros AR71XX/AR724X/AR913X based boards" 193 select ARCH_HAS_RESET_CONTROLLER 194 select BOOT_RAW 195 select CEVT_R4K 196 select CSRC_R4K 197 select DMA_NONCOHERENT 198 select GPIOLIB 199 select PINCTRL 200 select HAVE_CLK 201 select COMMON_CLK 202 select CLKDEV_LOOKUP 203 select IRQ_MIPS_CPU 204 select MIPS_MACHINE 205 select SYS_HAS_CPU_MIPS32_R2 206 select SYS_HAS_EARLY_PRINTK 207 select SYS_SUPPORTS_32BIT_KERNEL 208 select SYS_SUPPORTS_BIG_ENDIAN 209 select SYS_SUPPORTS_MIPS16 210 select SYS_SUPPORTS_ZBOOT_UART_PROM 211 select USE_OF 212 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 213 help 214 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 215 216config BMIPS_GENERIC 217 bool "Broadcom Generic BMIPS kernel" 218 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 219 select ARCH_HAS_PHYS_TO_DMA 220 select BOOT_RAW 221 select NO_EXCEPT_FILL 222 select USE_OF 223 select CEVT_R4K 224 select CSRC_R4K 225 select SYNC_R4K 226 select COMMON_CLK 227 select BCM6345_L1_IRQ 228 select BCM7038_L1_IRQ 229 select BCM7120_L2_IRQ 230 select BRCMSTB_L2_IRQ 231 select IRQ_MIPS_CPU 232 select DMA_NONCOHERENT 233 select SYS_SUPPORTS_32BIT_KERNEL 234 select SYS_SUPPORTS_LITTLE_ENDIAN 235 select SYS_SUPPORTS_BIG_ENDIAN 236 select SYS_SUPPORTS_HIGHMEM 237 select SYS_HAS_CPU_BMIPS32_3300 238 select SYS_HAS_CPU_BMIPS4350 239 select SYS_HAS_CPU_BMIPS4380 240 select SYS_HAS_CPU_BMIPS5000 241 select SWAP_IO_SPACE 242 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 243 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 244 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 245 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 246 select HARDIRQS_SW_RESEND 247 help 248 Build a generic DT-based kernel image that boots on select 249 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 250 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 251 must be set appropriately for your board. 252 253config BCM47XX 254 bool "Broadcom BCM47XX based boards" 255 select BOOT_RAW 256 select CEVT_R4K 257 select CSRC_R4K 258 select DMA_NONCOHERENT 259 select HW_HAS_PCI 260 select IRQ_MIPS_CPU 261 select SYS_HAS_CPU_MIPS32_R1 262 select NO_EXCEPT_FILL 263 select SYS_SUPPORTS_32BIT_KERNEL 264 select SYS_SUPPORTS_LITTLE_ENDIAN 265 select SYS_SUPPORTS_MIPS16 266 select SYS_SUPPORTS_ZBOOT 267 select SYS_HAS_EARLY_PRINTK 268 select USE_GENERIC_EARLY_PRINTK_8250 269 select GPIOLIB 270 select LEDS_GPIO_REGISTER 271 select BCM47XX_NVRAM 272 select BCM47XX_SPROM 273 select BCM47XX_SSB if !BCM47XX_BCMA 274 help 275 Support for BCM47XX based boards 276 277config BCM63XX 278 bool "Broadcom BCM63XX based boards" 279 select BOOT_RAW 280 select CEVT_R4K 281 select CSRC_R4K 282 select SYNC_R4K 283 select DMA_NONCOHERENT 284 select IRQ_MIPS_CPU 285 select SYS_SUPPORTS_32BIT_KERNEL 286 select SYS_SUPPORTS_BIG_ENDIAN 287 select SYS_HAS_EARLY_PRINTK 288 select SWAP_IO_SPACE 289 select GPIOLIB 290 select HAVE_CLK 291 select MIPS_L1_CACHE_SHIFT_4 292 select CLKDEV_LOOKUP 293 help 294 Support for BCM63XX based boards 295 296config MIPS_COBALT 297 bool "Cobalt Server" 298 select CEVT_R4K 299 select CSRC_R4K 300 select CEVT_GT641XX 301 select DMA_NONCOHERENT 302 select HW_HAS_PCI 303 select I8253 304 select I8259 305 select IRQ_MIPS_CPU 306 select IRQ_GT641XX 307 select PCI_GT64XXX_PCI0 308 select PCI 309 select SYS_HAS_CPU_NEVADA 310 select SYS_HAS_EARLY_PRINTK 311 select SYS_SUPPORTS_32BIT_KERNEL 312 select SYS_SUPPORTS_64BIT_KERNEL 313 select SYS_SUPPORTS_LITTLE_ENDIAN 314 select USE_GENERIC_EARLY_PRINTK_8250 315 316config MACH_DECSTATION 317 bool "DECstations" 318 select BOOT_ELF32 319 select CEVT_DS1287 320 select CEVT_R4K if CPU_R4X00 321 select CSRC_IOASIC 322 select CSRC_R4K if CPU_R4X00 323 select CPU_DADDI_WORKAROUNDS if 64BIT 324 select CPU_R4000_WORKAROUNDS if 64BIT 325 select CPU_R4400_WORKAROUNDS if 64BIT 326 select DMA_NONCOHERENT 327 select NO_IOPORT_MAP 328 select IRQ_MIPS_CPU 329 select SYS_HAS_CPU_R3000 330 select SYS_HAS_CPU_R4X00 331 select SYS_SUPPORTS_32BIT_KERNEL 332 select SYS_SUPPORTS_64BIT_KERNEL 333 select SYS_SUPPORTS_LITTLE_ENDIAN 334 select SYS_SUPPORTS_128HZ 335 select SYS_SUPPORTS_256HZ 336 select SYS_SUPPORTS_1024HZ 337 select MIPS_L1_CACHE_SHIFT_4 338 help 339 This enables support for DEC's MIPS based workstations. For details 340 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 341 DECstation porting pages on <http://decstation.unix-ag.org/>. 342 343 If you have one of the following DECstation Models you definitely 344 want to choose R4xx0 for the CPU Type: 345 346 DECstation 5000/50 347 DECstation 5000/150 348 DECstation 5000/260 349 DECsystem 5900/260 350 351 otherwise choose R3000. 352 353config MACH_JAZZ 354 bool "Jazz family of machines" 355 select ARCH_MIGHT_HAVE_PC_PARPORT 356 select ARCH_MIGHT_HAVE_PC_SERIO 357 select FW_ARC 358 select FW_ARC32 359 select ARCH_MAY_HAVE_PC_FDC 360 select CEVT_R4K 361 select CSRC_R4K 362 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 363 select GENERIC_ISA_DMA 364 select HAVE_PCSPKR_PLATFORM 365 select IRQ_MIPS_CPU 366 select I8253 367 select I8259 368 select ISA 369 select SYS_HAS_CPU_R4X00 370 select SYS_SUPPORTS_32BIT_KERNEL 371 select SYS_SUPPORTS_64BIT_KERNEL 372 select SYS_SUPPORTS_100HZ 373 help 374 This a family of machines based on the MIPS R4030 chipset which was 375 used by several vendors to build RISC/os and Windows NT workstations. 376 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 377 Olivetti M700-10 workstations. 378 379config MACH_INGENIC 380 bool "Ingenic SoC based machines" 381 select SYS_SUPPORTS_32BIT_KERNEL 382 select SYS_SUPPORTS_LITTLE_ENDIAN 383 select SYS_SUPPORTS_ZBOOT_UART16550 384 select DMA_NONCOHERENT 385 select IRQ_MIPS_CPU 386 select PINCTRL 387 select GPIOLIB 388 select COMMON_CLK 389 select GENERIC_IRQ_CHIP 390 select BUILTIN_DTB 391 select USE_OF 392 select LIBFDT 393 394config LANTIQ 395 bool "Lantiq based platforms" 396 select DMA_NONCOHERENT 397 select IRQ_MIPS_CPU 398 select CEVT_R4K 399 select CSRC_R4K 400 select SYS_HAS_CPU_MIPS32_R1 401 select SYS_HAS_CPU_MIPS32_R2 402 select SYS_SUPPORTS_BIG_ENDIAN 403 select SYS_SUPPORTS_32BIT_KERNEL 404 select SYS_SUPPORTS_MIPS16 405 select SYS_SUPPORTS_MULTITHREADING 406 select SYS_SUPPORTS_VPE_LOADER 407 select SYS_HAS_EARLY_PRINTK 408 select GPIOLIB 409 select SWAP_IO_SPACE 410 select BOOT_RAW 411 select CLKDEV_LOOKUP 412 select USE_OF 413 select PINCTRL 414 select PINCTRL_LANTIQ 415 select ARCH_HAS_RESET_CONTROLLER 416 select RESET_CONTROLLER 417 418config LASAT 419 bool "LASAT Networks platforms" 420 select CEVT_R4K 421 select CRC32 422 select CSRC_R4K 423 select DMA_NONCOHERENT 424 select SYS_HAS_EARLY_PRINTK 425 select HW_HAS_PCI 426 select IRQ_MIPS_CPU 427 select PCI_GT64XXX_PCI0 428 select MIPS_NILE4 429 select R5000_CPU_SCACHE 430 select SYS_HAS_CPU_R5000 431 select SYS_SUPPORTS_32BIT_KERNEL 432 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 433 select SYS_SUPPORTS_LITTLE_ENDIAN 434 435config MACH_LOONGSON32 436 bool "Loongson-1 family of machines" 437 select SYS_SUPPORTS_ZBOOT 438 help 439 This enables support for the Loongson-1 family of machines. 440 441 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 442 the Institute of Computing Technology (ICT), Chinese Academy of 443 Sciences (CAS). 444 445config MACH_LOONGSON64 446 bool "Loongson-2/3 family of machines" 447 select SYS_SUPPORTS_ZBOOT 448 help 449 This enables the support of Loongson-2/3 family of machines. 450 451 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 452 family of multi-core CPUs. They are both 64-bit general-purpose 453 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 454 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 455 in the People's Republic of China. The chief architect is Professor 456 Weiwu Hu. 457 458config MACH_PISTACHIO 459 bool "IMG Pistachio SoC based boards" 460 select BOOT_ELF32 461 select BOOT_RAW 462 select CEVT_R4K 463 select CLKSRC_MIPS_GIC 464 select COMMON_CLK 465 select CSRC_R4K 466 select DMA_NONCOHERENT 467 select GPIOLIB 468 select IRQ_MIPS_CPU 469 select LIBFDT 470 select MFD_SYSCON 471 select MIPS_CPU_SCACHE 472 select MIPS_GIC 473 select PINCTRL 474 select REGULATOR 475 select SYS_HAS_CPU_MIPS32_R2 476 select SYS_SUPPORTS_32BIT_KERNEL 477 select SYS_SUPPORTS_LITTLE_ENDIAN 478 select SYS_SUPPORTS_MIPS_CPS 479 select SYS_SUPPORTS_MULTITHREADING 480 select SYS_SUPPORTS_RELOCATABLE 481 select SYS_SUPPORTS_ZBOOT 482 select SYS_HAS_EARLY_PRINTK 483 select USE_GENERIC_EARLY_PRINTK_8250 484 select USE_OF 485 help 486 This enables support for the IMG Pistachio SoC platform. 487 488config MIPS_MALTA 489 bool "MIPS Malta board" 490 select ARCH_MAY_HAVE_PC_FDC 491 select ARCH_MIGHT_HAVE_PC_PARPORT 492 select ARCH_MIGHT_HAVE_PC_SERIO 493 select BOOT_ELF32 494 select BOOT_RAW 495 select BUILTIN_DTB 496 select CEVT_R4K 497 select CSRC_R4K 498 select CLKSRC_MIPS_GIC 499 select COMMON_CLK 500 select DMA_MAYBE_COHERENT 501 select GENERIC_ISA_DMA 502 select HAVE_PCSPKR_PLATFORM 503 select IRQ_MIPS_CPU 504 select MIPS_GIC 505 select HW_HAS_PCI 506 select I8253 507 select I8259 508 select MIPS_BONITO64 509 select MIPS_CPU_SCACHE 510 select MIPS_L1_CACHE_SHIFT_6 511 select PCI_GT64XXX_PCI0 512 select MIPS_MSC 513 select SMP_UP if SMP 514 select SWAP_IO_SPACE 515 select SYS_HAS_CPU_MIPS32_R1 516 select SYS_HAS_CPU_MIPS32_R2 517 select SYS_HAS_CPU_MIPS32_R3_5 518 select SYS_HAS_CPU_MIPS32_R5 519 select SYS_HAS_CPU_MIPS32_R6 520 select SYS_HAS_CPU_MIPS64_R1 521 select SYS_HAS_CPU_MIPS64_R2 522 select SYS_HAS_CPU_MIPS64_R6 523 select SYS_HAS_CPU_NEVADA 524 select SYS_HAS_CPU_RM7000 525 select SYS_SUPPORTS_32BIT_KERNEL 526 select SYS_SUPPORTS_64BIT_KERNEL 527 select SYS_SUPPORTS_BIG_ENDIAN 528 select SYS_SUPPORTS_HIGHMEM 529 select SYS_SUPPORTS_LITTLE_ENDIAN 530 select SYS_SUPPORTS_MICROMIPS 531 select SYS_SUPPORTS_MIPS_CMP 532 select SYS_SUPPORTS_MIPS_CPS 533 select SYS_SUPPORTS_MIPS16 534 select SYS_SUPPORTS_MULTITHREADING 535 select SYS_SUPPORTS_SMARTMIPS 536 select SYS_SUPPORTS_VPE_LOADER 537 select SYS_SUPPORTS_ZBOOT 538 select SYS_SUPPORTS_RELOCATABLE 539 select USE_OF 540 select LIBFDT 541 select ZONE_DMA32 if 64BIT 542 select BUILTIN_DTB 543 select LIBFDT 544 help 545 This enables support for the MIPS Technologies Malta evaluation 546 board. 547 548config MACH_PIC32 549 bool "Microchip PIC32 Family" 550 help 551 This enables support for the Microchip PIC32 family of platforms. 552 553 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 554 microcontrollers. 555 556config NEC_MARKEINS 557 bool "NEC EMMA2RH Mark-eins board" 558 select SOC_EMMA2RH 559 select HW_HAS_PCI 560 help 561 This enables support for the NEC Electronics Mark-eins boards. 562 563config MACH_VR41XX 564 bool "NEC VR4100 series based machines" 565 select CEVT_R4K 566 select CSRC_R4K 567 select SYS_HAS_CPU_VR41XX 568 select SYS_SUPPORTS_MIPS16 569 select GPIOLIB 570 571config NXP_STB220 572 bool "NXP STB220 board" 573 select SOC_PNX833X 574 help 575 Support for NXP Semiconductors STB220 Development Board. 576 577config NXP_STB225 578 bool "NXP 225 board" 579 select SOC_PNX833X 580 select SOC_PNX8335 581 help 582 Support for NXP Semiconductors STB225 Development Board. 583 584config PMC_MSP 585 bool "PMC-Sierra MSP chipsets" 586 select CEVT_R4K 587 select CSRC_R4K 588 select DMA_NONCOHERENT 589 select SWAP_IO_SPACE 590 select NO_EXCEPT_FILL 591 select BOOT_RAW 592 select SYS_HAS_CPU_MIPS32_R1 593 select SYS_HAS_CPU_MIPS32_R2 594 select SYS_SUPPORTS_32BIT_KERNEL 595 select SYS_SUPPORTS_BIG_ENDIAN 596 select SYS_SUPPORTS_MIPS16 597 select IRQ_MIPS_CPU 598 select SERIAL_8250 599 select SERIAL_8250_CONSOLE 600 select USB_EHCI_BIG_ENDIAN_MMIO 601 select USB_EHCI_BIG_ENDIAN_DESC 602 help 603 This adds support for the PMC-Sierra family of Multi-Service 604 Processor System-On-A-Chips. These parts include a number 605 of integrated peripherals, interfaces and DSPs in addition to 606 a variety of MIPS cores. 607 608config RALINK 609 bool "Ralink based machines" 610 select CEVT_R4K 611 select CSRC_R4K 612 select BOOT_RAW 613 select DMA_NONCOHERENT 614 select IRQ_MIPS_CPU 615 select USE_OF 616 select SYS_HAS_CPU_MIPS32_R1 617 select SYS_HAS_CPU_MIPS32_R2 618 select SYS_SUPPORTS_32BIT_KERNEL 619 select SYS_SUPPORTS_LITTLE_ENDIAN 620 select SYS_SUPPORTS_MIPS16 621 select SYS_HAS_EARLY_PRINTK 622 select CLKDEV_LOOKUP 623 select ARCH_HAS_RESET_CONTROLLER 624 select RESET_CONTROLLER 625 626config SGI_IP22 627 bool "SGI IP22 (Indy/Indigo2)" 628 select FW_ARC 629 select FW_ARC32 630 select ARCH_MIGHT_HAVE_PC_SERIO 631 select BOOT_ELF32 632 select CEVT_R4K 633 select CSRC_R4K 634 select DEFAULT_SGI_PARTITION 635 select DMA_NONCOHERENT 636 select HW_HAS_EISA 637 select I8253 638 select I8259 639 select IP22_CPU_SCACHE 640 select IRQ_MIPS_CPU 641 select GENERIC_ISA_DMA_SUPPORT_BROKEN 642 select SGI_HAS_I8042 643 select SGI_HAS_INDYDOG 644 select SGI_HAS_HAL2 645 select SGI_HAS_SEEQ 646 select SGI_HAS_WD93 647 select SGI_HAS_ZILOG 648 select SWAP_IO_SPACE 649 select SYS_HAS_CPU_R4X00 650 select SYS_HAS_CPU_R5000 651 # 652 # Disable EARLY_PRINTK for now since it leads to overwritten prom 653 # memory during early boot on some machines. 654 # 655 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 656 # for a more details discussion 657 # 658 # select SYS_HAS_EARLY_PRINTK 659 select SYS_SUPPORTS_32BIT_KERNEL 660 select SYS_SUPPORTS_64BIT_KERNEL 661 select SYS_SUPPORTS_BIG_ENDIAN 662 select MIPS_L1_CACHE_SHIFT_7 663 help 664 This are the SGI Indy, Challenge S and Indigo2, as well as certain 665 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 666 that runs on these, say Y here. 667 668config SGI_IP27 669 bool "SGI IP27 (Origin200/2000)" 670 select ARCH_HAS_PHYS_TO_DMA 671 select FW_ARC 672 select FW_ARC64 673 select BOOT_ELF64 674 select DEFAULT_SGI_PARTITION 675 select SYS_HAS_EARLY_PRINTK 676 select HW_HAS_PCI 677 select NR_CPUS_DEFAULT_64 678 select SYS_HAS_CPU_R10000 679 select SYS_SUPPORTS_64BIT_KERNEL 680 select SYS_SUPPORTS_BIG_ENDIAN 681 select SYS_SUPPORTS_NUMA 682 select SYS_SUPPORTS_SMP 683 select MIPS_L1_CACHE_SHIFT_7 684 help 685 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 686 workstations. To compile a Linux kernel that runs on these, say Y 687 here. 688 689config SGI_IP28 690 bool "SGI IP28 (Indigo2 R10k)" 691 select FW_ARC 692 select FW_ARC64 693 select ARCH_MIGHT_HAVE_PC_SERIO 694 select BOOT_ELF64 695 select CEVT_R4K 696 select CSRC_R4K 697 select DEFAULT_SGI_PARTITION 698 select DMA_NONCOHERENT 699 select GENERIC_ISA_DMA_SUPPORT_BROKEN 700 select IRQ_MIPS_CPU 701 select HW_HAS_EISA 702 select I8253 703 select I8259 704 select SGI_HAS_I8042 705 select SGI_HAS_INDYDOG 706 select SGI_HAS_HAL2 707 select SGI_HAS_SEEQ 708 select SGI_HAS_WD93 709 select SGI_HAS_ZILOG 710 select SWAP_IO_SPACE 711 select SYS_HAS_CPU_R10000 712 # 713 # Disable EARLY_PRINTK for now since it leads to overwritten prom 714 # memory during early boot on some machines. 715 # 716 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 717 # for a more details discussion 718 # 719 # select SYS_HAS_EARLY_PRINTK 720 select SYS_SUPPORTS_64BIT_KERNEL 721 select SYS_SUPPORTS_BIG_ENDIAN 722 select MIPS_L1_CACHE_SHIFT_7 723 help 724 This is the SGI Indigo2 with R10000 processor. To compile a Linux 725 kernel that runs on these, say Y here. 726 727config SGI_IP32 728 bool "SGI IP32 (O2)" 729 select ARCH_HAS_PHYS_TO_DMA 730 select FW_ARC 731 select FW_ARC32 732 select BOOT_ELF32 733 select CEVT_R4K 734 select CSRC_R4K 735 select DMA_NONCOHERENT 736 select HW_HAS_PCI 737 select IRQ_MIPS_CPU 738 select R5000_CPU_SCACHE 739 select RM7000_CPU_SCACHE 740 select SYS_HAS_CPU_R5000 741 select SYS_HAS_CPU_R10000 if BROKEN 742 select SYS_HAS_CPU_RM7000 743 select SYS_HAS_CPU_NEVADA 744 select SYS_SUPPORTS_64BIT_KERNEL 745 select SYS_SUPPORTS_BIG_ENDIAN 746 help 747 If you want this kernel to run on SGI O2 workstation, say Y here. 748 749config SIBYTE_CRHINE 750 bool "Sibyte BCM91120C-CRhine" 751 select BOOT_ELF32 752 select SIBYTE_BCM1120 753 select SWAP_IO_SPACE 754 select SYS_HAS_CPU_SB1 755 select SYS_SUPPORTS_BIG_ENDIAN 756 select SYS_SUPPORTS_LITTLE_ENDIAN 757 758config SIBYTE_CARMEL 759 bool "Sibyte BCM91120x-Carmel" 760 select BOOT_ELF32 761 select SIBYTE_BCM1120 762 select SWAP_IO_SPACE 763 select SYS_HAS_CPU_SB1 764 select SYS_SUPPORTS_BIG_ENDIAN 765 select SYS_SUPPORTS_LITTLE_ENDIAN 766 767config SIBYTE_CRHONE 768 bool "Sibyte BCM91125C-CRhone" 769 select BOOT_ELF32 770 select SIBYTE_BCM1125 771 select SWAP_IO_SPACE 772 select SYS_HAS_CPU_SB1 773 select SYS_SUPPORTS_BIG_ENDIAN 774 select SYS_SUPPORTS_HIGHMEM 775 select SYS_SUPPORTS_LITTLE_ENDIAN 776 777config SIBYTE_RHONE 778 bool "Sibyte BCM91125E-Rhone" 779 select BOOT_ELF32 780 select SIBYTE_BCM1125H 781 select SWAP_IO_SPACE 782 select SYS_HAS_CPU_SB1 783 select SYS_SUPPORTS_BIG_ENDIAN 784 select SYS_SUPPORTS_LITTLE_ENDIAN 785 786config SIBYTE_SWARM 787 bool "Sibyte BCM91250A-SWARM" 788 select BOOT_ELF32 789 select HAVE_PATA_PLATFORM 790 select SIBYTE_SB1250 791 select SWAP_IO_SPACE 792 select SYS_HAS_CPU_SB1 793 select SYS_SUPPORTS_BIG_ENDIAN 794 select SYS_SUPPORTS_HIGHMEM 795 select SYS_SUPPORTS_LITTLE_ENDIAN 796 select ZONE_DMA32 if 64BIT 797 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 798 799config SIBYTE_LITTLESUR 800 bool "Sibyte BCM91250C2-LittleSur" 801 select BOOT_ELF32 802 select HAVE_PATA_PLATFORM 803 select SIBYTE_SB1250 804 select SWAP_IO_SPACE 805 select SYS_HAS_CPU_SB1 806 select SYS_SUPPORTS_BIG_ENDIAN 807 select SYS_SUPPORTS_HIGHMEM 808 select SYS_SUPPORTS_LITTLE_ENDIAN 809 select ZONE_DMA32 if 64BIT 810 811config SIBYTE_SENTOSA 812 bool "Sibyte BCM91250E-Sentosa" 813 select BOOT_ELF32 814 select SIBYTE_SB1250 815 select SWAP_IO_SPACE 816 select SYS_HAS_CPU_SB1 817 select SYS_SUPPORTS_BIG_ENDIAN 818 select SYS_SUPPORTS_LITTLE_ENDIAN 819 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 820 821config SIBYTE_BIGSUR 822 bool "Sibyte BCM91480B-BigSur" 823 select BOOT_ELF32 824 select NR_CPUS_DEFAULT_4 825 select SIBYTE_BCM1x80 826 select SWAP_IO_SPACE 827 select SYS_HAS_CPU_SB1 828 select SYS_SUPPORTS_BIG_ENDIAN 829 select SYS_SUPPORTS_HIGHMEM 830 select SYS_SUPPORTS_LITTLE_ENDIAN 831 select ZONE_DMA32 if 64BIT 832 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 833 834config SNI_RM 835 bool "SNI RM200/300/400" 836 select FW_ARC if CPU_LITTLE_ENDIAN 837 select FW_ARC32 if CPU_LITTLE_ENDIAN 838 select FW_SNIPROM if CPU_BIG_ENDIAN 839 select ARCH_MAY_HAVE_PC_FDC 840 select ARCH_MIGHT_HAVE_PC_PARPORT 841 select ARCH_MIGHT_HAVE_PC_SERIO 842 select BOOT_ELF32 843 select CEVT_R4K 844 select CSRC_R4K 845 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 846 select DMA_NONCOHERENT 847 select GENERIC_ISA_DMA 848 select HAVE_PCSPKR_PLATFORM 849 select HW_HAS_EISA 850 select HW_HAS_PCI 851 select IRQ_MIPS_CPU 852 select I8253 853 select I8259 854 select ISA 855 select MIPS_L1_CACHE_SHIFT_6 856 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 857 select SYS_HAS_CPU_R4X00 858 select SYS_HAS_CPU_R5000 859 select SYS_HAS_CPU_R10000 860 select R5000_CPU_SCACHE 861 select SYS_HAS_EARLY_PRINTK 862 select SYS_SUPPORTS_32BIT_KERNEL 863 select SYS_SUPPORTS_64BIT_KERNEL 864 select SYS_SUPPORTS_BIG_ENDIAN 865 select SYS_SUPPORTS_HIGHMEM 866 select SYS_SUPPORTS_LITTLE_ENDIAN 867 help 868 The SNI RM200/300/400 are MIPS-based machines manufactured by 869 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 870 Technology and now in turn merged with Fujitsu. Say Y here to 871 support this machine type. 872 873config MACH_TX39XX 874 bool "Toshiba TX39 series based machines" 875 876config MACH_TX49XX 877 bool "Toshiba TX49 series based machines" 878 879config MIKROTIK_RB532 880 bool "Mikrotik RB532 boards" 881 select CEVT_R4K 882 select CSRC_R4K 883 select DMA_NONCOHERENT 884 select HW_HAS_PCI 885 select IRQ_MIPS_CPU 886 select SYS_HAS_CPU_MIPS32_R1 887 select SYS_SUPPORTS_32BIT_KERNEL 888 select SYS_SUPPORTS_LITTLE_ENDIAN 889 select SWAP_IO_SPACE 890 select BOOT_RAW 891 select GPIOLIB 892 select MIPS_L1_CACHE_SHIFT_4 893 help 894 Support the Mikrotik(tm) RouterBoard 532 series, 895 based on the IDT RC32434 SoC. 896 897config CAVIUM_OCTEON_SOC 898 bool "Cavium Networks Octeon SoC based boards" 899 select CEVT_R4K 900 select ARCH_HAS_PHYS_TO_DMA 901 select HAS_RAPIDIO 902 select PHYS_ADDR_T_64BIT 903 select SYS_SUPPORTS_64BIT_KERNEL 904 select SYS_SUPPORTS_BIG_ENDIAN 905 select EDAC_SUPPORT 906 select EDAC_ATOMIC_SCRUB 907 select SYS_SUPPORTS_LITTLE_ENDIAN 908 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 909 select SYS_HAS_EARLY_PRINTK 910 select SYS_HAS_CPU_CAVIUM_OCTEON 911 select HW_HAS_PCI 912 select ZONE_DMA32 913 select HOLES_IN_ZONE 914 select GPIOLIB 915 select LIBFDT 916 select USE_OF 917 select ARCH_SPARSEMEM_ENABLE 918 select SYS_SUPPORTS_SMP 919 select NR_CPUS_DEFAULT_64 920 select MIPS_NR_CPU_NR_MAP_1024 921 select BUILTIN_DTB 922 select MTD_COMPLEX_MAPPINGS 923 select SWIOTLB 924 select SYS_SUPPORTS_RELOCATABLE 925 help 926 This option supports all of the Octeon reference boards from Cavium 927 Networks. It builds a kernel that dynamically determines the Octeon 928 CPU type and supports all known board reference implementations. 929 Some of the supported boards are: 930 EBT3000 931 EBH3000 932 EBH3100 933 Thunder 934 Kodama 935 Hikari 936 Say Y here for most Octeon reference boards. 937 938config NLM_XLR_BOARD 939 bool "Netlogic XLR/XLS based systems" 940 select BOOT_ELF32 941 select NLM_COMMON 942 select SYS_HAS_CPU_XLR 943 select SYS_SUPPORTS_SMP 944 select HW_HAS_PCI 945 select SWAP_IO_SPACE 946 select SYS_SUPPORTS_32BIT_KERNEL 947 select SYS_SUPPORTS_64BIT_KERNEL 948 select PHYS_ADDR_T_64BIT 949 select SYS_SUPPORTS_BIG_ENDIAN 950 select SYS_SUPPORTS_HIGHMEM 951 select NR_CPUS_DEFAULT_32 952 select CEVT_R4K 953 select CSRC_R4K 954 select IRQ_MIPS_CPU 955 select ZONE_DMA32 if 64BIT 956 select SYNC_R4K 957 select SYS_HAS_EARLY_PRINTK 958 select SYS_SUPPORTS_ZBOOT 959 select SYS_SUPPORTS_ZBOOT_UART16550 960 help 961 Support for systems based on Netlogic XLR and XLS processors. 962 Say Y here if you have a XLR or XLS based board. 963 964config NLM_XLP_BOARD 965 bool "Netlogic XLP based systems" 966 select BOOT_ELF32 967 select NLM_COMMON 968 select SYS_HAS_CPU_XLP 969 select SYS_SUPPORTS_SMP 970 select HW_HAS_PCI 971 select SYS_SUPPORTS_32BIT_KERNEL 972 select SYS_SUPPORTS_64BIT_KERNEL 973 select PHYS_ADDR_T_64BIT 974 select GPIOLIB 975 select SYS_SUPPORTS_BIG_ENDIAN 976 select SYS_SUPPORTS_LITTLE_ENDIAN 977 select SYS_SUPPORTS_HIGHMEM 978 select NR_CPUS_DEFAULT_32 979 select CEVT_R4K 980 select CSRC_R4K 981 select IRQ_MIPS_CPU 982 select ZONE_DMA32 if 64BIT 983 select SYNC_R4K 984 select SYS_HAS_EARLY_PRINTK 985 select USE_OF 986 select SYS_SUPPORTS_ZBOOT 987 select SYS_SUPPORTS_ZBOOT_UART16550 988 help 989 This board is based on Netlogic XLP Processor. 990 Say Y here if you have a XLP based board. 991 992config MIPS_PARAVIRT 993 bool "Para-Virtualized guest system" 994 select CEVT_R4K 995 select CSRC_R4K 996 select SYS_SUPPORTS_64BIT_KERNEL 997 select SYS_SUPPORTS_32BIT_KERNEL 998 select SYS_SUPPORTS_BIG_ENDIAN 999 select SYS_SUPPORTS_SMP 1000 select NR_CPUS_DEFAULT_4 1001 select SYS_HAS_EARLY_PRINTK 1002 select SYS_HAS_CPU_MIPS32_R2 1003 select SYS_HAS_CPU_MIPS64_R2 1004 select SYS_HAS_CPU_CAVIUM_OCTEON 1005 select HW_HAS_PCI 1006 select SWAP_IO_SPACE 1007 help 1008 This option supports guest running under ???? 1009 1010endchoice 1011 1012source "arch/mips/alchemy/Kconfig" 1013source "arch/mips/ath25/Kconfig" 1014source "arch/mips/ath79/Kconfig" 1015source "arch/mips/bcm47xx/Kconfig" 1016source "arch/mips/bcm63xx/Kconfig" 1017source "arch/mips/bmips/Kconfig" 1018source "arch/mips/generic/Kconfig" 1019source "arch/mips/jazz/Kconfig" 1020source "arch/mips/jz4740/Kconfig" 1021source "arch/mips/lantiq/Kconfig" 1022source "arch/mips/lasat/Kconfig" 1023source "arch/mips/pic32/Kconfig" 1024source "arch/mips/pistachio/Kconfig" 1025source "arch/mips/pmcs-msp71xx/Kconfig" 1026source "arch/mips/ralink/Kconfig" 1027source "arch/mips/sgi-ip27/Kconfig" 1028source "arch/mips/sibyte/Kconfig" 1029source "arch/mips/txx9/Kconfig" 1030source "arch/mips/vr41xx/Kconfig" 1031source "arch/mips/cavium-octeon/Kconfig" 1032source "arch/mips/loongson32/Kconfig" 1033source "arch/mips/loongson64/Kconfig" 1034source "arch/mips/netlogic/Kconfig" 1035source "arch/mips/paravirt/Kconfig" 1036 1037endmenu 1038 1039config RWSEM_GENERIC_SPINLOCK 1040 bool 1041 default y 1042 1043config RWSEM_XCHGADD_ALGORITHM 1044 bool 1045 1046config GENERIC_HWEIGHT 1047 bool 1048 default y 1049 1050config GENERIC_CALIBRATE_DELAY 1051 bool 1052 default y 1053 1054config SCHED_OMIT_FRAME_POINTER 1055 bool 1056 default y 1057 1058# 1059# Select some configuration options automatically based on user selections. 1060# 1061config FW_ARC 1062 bool 1063 1064config ARCH_MAY_HAVE_PC_FDC 1065 bool 1066 1067config BOOT_RAW 1068 bool 1069 1070config CEVT_BCM1480 1071 bool 1072 1073config CEVT_DS1287 1074 bool 1075 1076config CEVT_GT641XX 1077 bool 1078 1079config CEVT_R4K 1080 bool 1081 1082config CEVT_SB1250 1083 bool 1084 1085config CEVT_TXX9 1086 bool 1087 1088config CSRC_BCM1480 1089 bool 1090 1091config CSRC_IOASIC 1092 bool 1093 1094config CSRC_R4K 1095 bool 1096 1097config CSRC_SB1250 1098 bool 1099 1100config MIPS_CLOCK_VSYSCALL 1101 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1102 1103config GPIO_TXX9 1104 select GPIOLIB 1105 bool 1106 1107config FW_CFE 1108 bool 1109 1110config ARCH_SUPPORTS_UPROBES 1111 bool 1112 1113config DMA_MAYBE_COHERENT 1114 select DMA_NONCOHERENT 1115 bool 1116 1117config DMA_PERDEV_COHERENT 1118 bool 1119 select DMA_MAYBE_COHERENT 1120 1121config DMA_NONCOHERENT 1122 bool 1123 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1124 select ARCH_HAS_SYNC_DMA_FOR_CPU 1125 select NEED_DMA_MAP_STATE 1126 select DMA_NONCOHERENT_MMAP 1127 select DMA_NONCOHERENT_CACHE_SYNC 1128 select DMA_NONCOHERENT_OPS 1129 1130config SYS_HAS_EARLY_PRINTK 1131 bool 1132 1133config SYS_SUPPORTS_HOTPLUG_CPU 1134 bool 1135 1136config MIPS_BONITO64 1137 bool 1138 1139config MIPS_MSC 1140 bool 1141 1142config MIPS_NILE4 1143 bool 1144 1145config SYNC_R4K 1146 bool 1147 1148config MIPS_MACHINE 1149 def_bool n 1150 1151config NO_IOPORT_MAP 1152 def_bool n 1153 1154config GENERIC_CSUM 1155 bool 1156 1157config GENERIC_ISA_DMA 1158 bool 1159 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1160 select ISA_DMA_API 1161 1162config GENERIC_ISA_DMA_SUPPORT_BROKEN 1163 bool 1164 select GENERIC_ISA_DMA 1165 1166config ISA_DMA_API 1167 bool 1168 1169config HOLES_IN_ZONE 1170 bool 1171 1172config SYS_SUPPORTS_RELOCATABLE 1173 bool 1174 help 1175 Selected if the platform supports relocating the kernel. 1176 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1177 to allow access to command line and entropy sources. 1178 1179config MIPS_CBPF_JIT 1180 def_bool y 1181 depends on BPF_JIT && HAVE_CBPF_JIT 1182 1183config MIPS_EBPF_JIT 1184 def_bool y 1185 depends on BPF_JIT && HAVE_EBPF_JIT 1186 1187 1188# 1189# Endianness selection. Sufficiently obscure so many users don't know what to 1190# answer,so we try hard to limit the available choices. Also the use of a 1191# choice statement should be more obvious to the user. 1192# 1193choice 1194 prompt "Endianness selection" 1195 help 1196 Some MIPS machines can be configured for either little or big endian 1197 byte order. These modes require different kernels and a different 1198 Linux distribution. In general there is one preferred byteorder for a 1199 particular system but some systems are just as commonly used in the 1200 one or the other endianness. 1201 1202config CPU_BIG_ENDIAN 1203 bool "Big endian" 1204 depends on SYS_SUPPORTS_BIG_ENDIAN 1205 1206config CPU_LITTLE_ENDIAN 1207 bool "Little endian" 1208 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1209 1210endchoice 1211 1212config EXPORT_UASM 1213 bool 1214 1215config SYS_SUPPORTS_APM_EMULATION 1216 bool 1217 1218config SYS_SUPPORTS_BIG_ENDIAN 1219 bool 1220 1221config SYS_SUPPORTS_LITTLE_ENDIAN 1222 bool 1223 1224config SYS_SUPPORTS_HUGETLBFS 1225 bool 1226 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1227 default y 1228 1229config MIPS_HUGE_TLB_SUPPORT 1230 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1231 1232config IRQ_CPU_RM7K 1233 bool 1234 1235config IRQ_MSP_SLP 1236 bool 1237 1238config IRQ_MSP_CIC 1239 bool 1240 1241config IRQ_TXX9 1242 bool 1243 1244config IRQ_GT641XX 1245 bool 1246 1247config PCI_GT64XXX_PCI0 1248 bool 1249 1250config NO_EXCEPT_FILL 1251 bool 1252 1253config SOC_EMMA2RH 1254 bool 1255 select CEVT_R4K 1256 select CSRC_R4K 1257 select DMA_NONCOHERENT 1258 select IRQ_MIPS_CPU 1259 select SWAP_IO_SPACE 1260 select SYS_HAS_CPU_R5500 1261 select SYS_SUPPORTS_32BIT_KERNEL 1262 select SYS_SUPPORTS_64BIT_KERNEL 1263 select SYS_SUPPORTS_BIG_ENDIAN 1264 1265config SOC_PNX833X 1266 bool 1267 select CEVT_R4K 1268 select CSRC_R4K 1269 select IRQ_MIPS_CPU 1270 select DMA_NONCOHERENT 1271 select SYS_HAS_CPU_MIPS32_R2 1272 select SYS_SUPPORTS_32BIT_KERNEL 1273 select SYS_SUPPORTS_LITTLE_ENDIAN 1274 select SYS_SUPPORTS_BIG_ENDIAN 1275 select SYS_SUPPORTS_MIPS16 1276 select CPU_MIPSR2_IRQ_VI 1277 1278config SOC_PNX8335 1279 bool 1280 select SOC_PNX833X 1281 1282config MIPS_SPRAM 1283 bool 1284 1285config SWAP_IO_SPACE 1286 bool 1287 1288config SGI_HAS_INDYDOG 1289 bool 1290 1291config SGI_HAS_HAL2 1292 bool 1293 1294config SGI_HAS_SEEQ 1295 bool 1296 1297config SGI_HAS_WD93 1298 bool 1299 1300config SGI_HAS_ZILOG 1301 bool 1302 1303config SGI_HAS_I8042 1304 bool 1305 1306config DEFAULT_SGI_PARTITION 1307 bool 1308 1309config FW_ARC32 1310 bool 1311 1312config FW_SNIPROM 1313 bool 1314 1315config BOOT_ELF32 1316 bool 1317 1318config MIPS_L1_CACHE_SHIFT_4 1319 bool 1320 1321config MIPS_L1_CACHE_SHIFT_5 1322 bool 1323 1324config MIPS_L1_CACHE_SHIFT_6 1325 bool 1326 1327config MIPS_L1_CACHE_SHIFT_7 1328 bool 1329 1330config MIPS_L1_CACHE_SHIFT 1331 int 1332 default "7" if MIPS_L1_CACHE_SHIFT_7 1333 default "6" if MIPS_L1_CACHE_SHIFT_6 1334 default "5" if MIPS_L1_CACHE_SHIFT_5 1335 default "4" if MIPS_L1_CACHE_SHIFT_4 1336 default "5" 1337 1338config HAVE_STD_PC_SERIAL_PORT 1339 bool 1340 1341config ARC_CONSOLE 1342 bool "ARC console support" 1343 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1344 1345config ARC_MEMORY 1346 bool 1347 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1348 default y 1349 1350config ARC_PROMLIB 1351 bool 1352 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1353 default y 1354 1355config FW_ARC64 1356 bool 1357 1358config BOOT_ELF64 1359 bool 1360 1361menu "CPU selection" 1362 1363choice 1364 prompt "CPU type" 1365 default CPU_R4X00 1366 1367config CPU_LOONGSON3 1368 bool "Loongson 3 CPU" 1369 depends on SYS_HAS_CPU_LOONGSON3 1370 select ARCH_HAS_PHYS_TO_DMA 1371 select CPU_SUPPORTS_64BIT_KERNEL 1372 select CPU_SUPPORTS_HIGHMEM 1373 select CPU_SUPPORTS_HUGEPAGES 1374 select WEAK_ORDERING 1375 select WEAK_REORDERING_BEYOND_LLSC 1376 select MIPS_PGD_C0_CONTEXT 1377 select MIPS_L1_CACHE_SHIFT_6 1378 select GPIOLIB 1379 select SWIOTLB 1380 help 1381 The Loongson 3 processor implements the MIPS64R2 instruction 1382 set with many extensions. 1383 1384config LOONGSON3_ENHANCEMENT 1385 bool "New Loongson 3 CPU Enhancements" 1386 default n 1387 select CPU_MIPSR2 1388 select CPU_HAS_PREFETCH 1389 depends on CPU_LOONGSON3 1390 help 1391 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1392 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1393 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1394 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1395 Fast TLB refill support, etc. 1396 1397 This option enable those enhancements which are not probed at run 1398 time. If you want a generic kernel to run on all Loongson 3 machines, 1399 please say 'N' here. If you want a high-performance kernel to run on 1400 new Loongson 3 machines only, please say 'Y' here. 1401 1402config CPU_LOONGSON2E 1403 bool "Loongson 2E" 1404 depends on SYS_HAS_CPU_LOONGSON2E 1405 select CPU_LOONGSON2 1406 help 1407 The Loongson 2E processor implements the MIPS III instruction set 1408 with many extensions. 1409 1410 It has an internal FPGA northbridge, which is compatible to 1411 bonito64. 1412 1413config CPU_LOONGSON2F 1414 bool "Loongson 2F" 1415 depends on SYS_HAS_CPU_LOONGSON2F 1416 select CPU_LOONGSON2 1417 select GPIOLIB 1418 help 1419 The Loongson 2F processor implements the MIPS III instruction set 1420 with many extensions. 1421 1422 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1423 have a similar programming interface with FPGA northbridge used in 1424 Loongson2E. 1425 1426config CPU_LOONGSON1B 1427 bool "Loongson 1B" 1428 depends on SYS_HAS_CPU_LOONGSON1B 1429 select CPU_LOONGSON1 1430 select LEDS_GPIO_REGISTER 1431 help 1432 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1433 Release 1 instruction set and part of the MIPS32 Release 2 1434 instruction set. 1435 1436config CPU_LOONGSON1C 1437 bool "Loongson 1C" 1438 depends on SYS_HAS_CPU_LOONGSON1C 1439 select CPU_LOONGSON1 1440 select LEDS_GPIO_REGISTER 1441 help 1442 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1443 Release 1 instruction set and part of the MIPS32 Release 2 1444 instruction set. 1445 1446config CPU_MIPS32_R1 1447 bool "MIPS32 Release 1" 1448 depends on SYS_HAS_CPU_MIPS32_R1 1449 select CPU_HAS_PREFETCH 1450 select CPU_SUPPORTS_32BIT_KERNEL 1451 select CPU_SUPPORTS_HIGHMEM 1452 help 1453 Choose this option to build a kernel for release 1 or later of the 1454 MIPS32 architecture. Most modern embedded systems with a 32-bit 1455 MIPS processor are based on a MIPS32 processor. If you know the 1456 specific type of processor in your system, choose those that one 1457 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1458 Release 2 of the MIPS32 architecture is available since several 1459 years so chances are you even have a MIPS32 Release 2 processor 1460 in which case you should choose CPU_MIPS32_R2 instead for better 1461 performance. 1462 1463config CPU_MIPS32_R2 1464 bool "MIPS32 Release 2" 1465 depends on SYS_HAS_CPU_MIPS32_R2 1466 select CPU_HAS_PREFETCH 1467 select CPU_SUPPORTS_32BIT_KERNEL 1468 select CPU_SUPPORTS_HIGHMEM 1469 select CPU_SUPPORTS_MSA 1470 select HAVE_KVM 1471 help 1472 Choose this option to build a kernel for release 2 or later of the 1473 MIPS32 architecture. Most modern embedded systems with a 32-bit 1474 MIPS processor are based on a MIPS32 processor. If you know the 1475 specific type of processor in your system, choose those that one 1476 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1477 1478config CPU_MIPS32_R6 1479 bool "MIPS32 Release 6" 1480 depends on SYS_HAS_CPU_MIPS32_R6 1481 select CPU_HAS_PREFETCH 1482 select CPU_SUPPORTS_32BIT_KERNEL 1483 select CPU_SUPPORTS_HIGHMEM 1484 select CPU_SUPPORTS_MSA 1485 select GENERIC_CSUM 1486 select HAVE_KVM 1487 select MIPS_O32_FP64_SUPPORT 1488 help 1489 Choose this option to build a kernel for release 6 or later of the 1490 MIPS32 architecture. New MIPS processors, starting with the Warrior 1491 family, are based on a MIPS32r6 processor. If you own an older 1492 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1493 1494config CPU_MIPS64_R1 1495 bool "MIPS64 Release 1" 1496 depends on SYS_HAS_CPU_MIPS64_R1 1497 select CPU_HAS_PREFETCH 1498 select CPU_SUPPORTS_32BIT_KERNEL 1499 select CPU_SUPPORTS_64BIT_KERNEL 1500 select CPU_SUPPORTS_HIGHMEM 1501 select CPU_SUPPORTS_HUGEPAGES 1502 help 1503 Choose this option to build a kernel for release 1 or later of the 1504 MIPS64 architecture. Many modern embedded systems with a 64-bit 1505 MIPS processor are based on a MIPS64 processor. If you know the 1506 specific type of processor in your system, choose those that one 1507 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1508 Release 2 of the MIPS64 architecture is available since several 1509 years so chances are you even have a MIPS64 Release 2 processor 1510 in which case you should choose CPU_MIPS64_R2 instead for better 1511 performance. 1512 1513config CPU_MIPS64_R2 1514 bool "MIPS64 Release 2" 1515 depends on SYS_HAS_CPU_MIPS64_R2 1516 select CPU_HAS_PREFETCH 1517 select CPU_SUPPORTS_32BIT_KERNEL 1518 select CPU_SUPPORTS_64BIT_KERNEL 1519 select CPU_SUPPORTS_HIGHMEM 1520 select CPU_SUPPORTS_HUGEPAGES 1521 select CPU_SUPPORTS_MSA 1522 select HAVE_KVM 1523 help 1524 Choose this option to build a kernel for release 2 or later of the 1525 MIPS64 architecture. Many modern embedded systems with a 64-bit 1526 MIPS processor are based on a MIPS64 processor. If you know the 1527 specific type of processor in your system, choose those that one 1528 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1529 1530config CPU_MIPS64_R6 1531 bool "MIPS64 Release 6" 1532 depends on SYS_HAS_CPU_MIPS64_R6 1533 select CPU_HAS_PREFETCH 1534 select CPU_SUPPORTS_32BIT_KERNEL 1535 select CPU_SUPPORTS_64BIT_KERNEL 1536 select CPU_SUPPORTS_HIGHMEM 1537 select CPU_SUPPORTS_MSA 1538 select GENERIC_CSUM 1539 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1540 select HAVE_KVM 1541 help 1542 Choose this option to build a kernel for release 6 or later of the 1543 MIPS64 architecture. New MIPS processors, starting with the Warrior 1544 family, are based on a MIPS64r6 processor. If you own an older 1545 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1546 1547config CPU_R3000 1548 bool "R3000" 1549 depends on SYS_HAS_CPU_R3000 1550 select CPU_HAS_WB 1551 select CPU_SUPPORTS_32BIT_KERNEL 1552 select CPU_SUPPORTS_HIGHMEM 1553 help 1554 Please make sure to pick the right CPU type. Linux/MIPS is not 1555 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1556 *not* work on R4000 machines and vice versa. However, since most 1557 of the supported machines have an R4000 (or similar) CPU, R4x00 1558 might be a safe bet. If the resulting kernel does not work, 1559 try to recompile with R3000. 1560 1561config CPU_TX39XX 1562 bool "R39XX" 1563 depends on SYS_HAS_CPU_TX39XX 1564 select CPU_SUPPORTS_32BIT_KERNEL 1565 1566config CPU_VR41XX 1567 bool "R41xx" 1568 depends on SYS_HAS_CPU_VR41XX 1569 select CPU_SUPPORTS_32BIT_KERNEL 1570 select CPU_SUPPORTS_64BIT_KERNEL 1571 help 1572 The options selects support for the NEC VR4100 series of processors. 1573 Only choose this option if you have one of these processors as a 1574 kernel built with this option will not run on any other type of 1575 processor or vice versa. 1576 1577config CPU_R4300 1578 bool "R4300" 1579 depends on SYS_HAS_CPU_R4300 1580 select CPU_SUPPORTS_32BIT_KERNEL 1581 select CPU_SUPPORTS_64BIT_KERNEL 1582 help 1583 MIPS Technologies R4300-series processors. 1584 1585config CPU_R4X00 1586 bool "R4x00" 1587 depends on SYS_HAS_CPU_R4X00 1588 select CPU_SUPPORTS_32BIT_KERNEL 1589 select CPU_SUPPORTS_64BIT_KERNEL 1590 select CPU_SUPPORTS_HUGEPAGES 1591 help 1592 MIPS Technologies R4000-series processors other than 4300, including 1593 the R4000, R4400, R4600, and 4700. 1594 1595config CPU_TX49XX 1596 bool "R49XX" 1597 depends on SYS_HAS_CPU_TX49XX 1598 select CPU_HAS_PREFETCH 1599 select CPU_SUPPORTS_32BIT_KERNEL 1600 select CPU_SUPPORTS_64BIT_KERNEL 1601 select CPU_SUPPORTS_HUGEPAGES 1602 1603config CPU_R5000 1604 bool "R5000" 1605 depends on SYS_HAS_CPU_R5000 1606 select CPU_SUPPORTS_32BIT_KERNEL 1607 select CPU_SUPPORTS_64BIT_KERNEL 1608 select CPU_SUPPORTS_HUGEPAGES 1609 help 1610 MIPS Technologies R5000-series processors other than the Nevada. 1611 1612config CPU_R5432 1613 bool "R5432" 1614 depends on SYS_HAS_CPU_R5432 1615 select CPU_SUPPORTS_32BIT_KERNEL 1616 select CPU_SUPPORTS_64BIT_KERNEL 1617 select CPU_SUPPORTS_HUGEPAGES 1618 1619config CPU_R5500 1620 bool "R5500" 1621 depends on SYS_HAS_CPU_R5500 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 select CPU_SUPPORTS_64BIT_KERNEL 1624 select CPU_SUPPORTS_HUGEPAGES 1625 help 1626 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1627 instruction set. 1628 1629config CPU_NEVADA 1630 bool "RM52xx" 1631 depends on SYS_HAS_CPU_NEVADA 1632 select CPU_SUPPORTS_32BIT_KERNEL 1633 select CPU_SUPPORTS_64BIT_KERNEL 1634 select CPU_SUPPORTS_HUGEPAGES 1635 help 1636 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1637 1638config CPU_R8000 1639 bool "R8000" 1640 depends on SYS_HAS_CPU_R8000 1641 select CPU_HAS_PREFETCH 1642 select CPU_SUPPORTS_64BIT_KERNEL 1643 help 1644 MIPS Technologies R8000 processors. Note these processors are 1645 uncommon and the support for them is incomplete. 1646 1647config CPU_R10000 1648 bool "R10000" 1649 depends on SYS_HAS_CPU_R10000 1650 select CPU_HAS_PREFETCH 1651 select CPU_SUPPORTS_32BIT_KERNEL 1652 select CPU_SUPPORTS_64BIT_KERNEL 1653 select CPU_SUPPORTS_HIGHMEM 1654 select CPU_SUPPORTS_HUGEPAGES 1655 help 1656 MIPS Technologies R10000-series processors. 1657 1658config CPU_RM7000 1659 bool "RM7000" 1660 depends on SYS_HAS_CPU_RM7000 1661 select CPU_HAS_PREFETCH 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_64BIT_KERNEL 1664 select CPU_SUPPORTS_HIGHMEM 1665 select CPU_SUPPORTS_HUGEPAGES 1666 1667config CPU_SB1 1668 bool "SB1" 1669 depends on SYS_HAS_CPU_SB1 1670 select CPU_SUPPORTS_32BIT_KERNEL 1671 select CPU_SUPPORTS_64BIT_KERNEL 1672 select CPU_SUPPORTS_HIGHMEM 1673 select CPU_SUPPORTS_HUGEPAGES 1674 select WEAK_ORDERING 1675 1676config CPU_CAVIUM_OCTEON 1677 bool "Cavium Octeon processor" 1678 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1679 select CPU_HAS_PREFETCH 1680 select CPU_SUPPORTS_64BIT_KERNEL 1681 select WEAK_ORDERING 1682 select CPU_SUPPORTS_HIGHMEM 1683 select CPU_SUPPORTS_HUGEPAGES 1684 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1685 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1686 select MIPS_L1_CACHE_SHIFT_7 1687 select HAVE_KVM 1688 help 1689 The Cavium Octeon processor is a highly integrated chip containing 1690 many ethernet hardware widgets for networking tasks. The processor 1691 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1692 Full details can be found at http://www.caviumnetworks.com. 1693 1694config CPU_BMIPS 1695 bool "Broadcom BMIPS" 1696 depends on SYS_HAS_CPU_BMIPS 1697 select CPU_MIPS32 1698 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1699 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1700 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1701 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1702 select CPU_SUPPORTS_32BIT_KERNEL 1703 select DMA_NONCOHERENT 1704 select IRQ_MIPS_CPU 1705 select SWAP_IO_SPACE 1706 select WEAK_ORDERING 1707 select CPU_SUPPORTS_HIGHMEM 1708 select CPU_HAS_PREFETCH 1709 select CPU_SUPPORTS_CPUFREQ 1710 select MIPS_EXTERNAL_TIMER 1711 help 1712 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1713 1714config CPU_XLR 1715 bool "Netlogic XLR SoC" 1716 depends on SYS_HAS_CPU_XLR 1717 select CPU_SUPPORTS_32BIT_KERNEL 1718 select CPU_SUPPORTS_64BIT_KERNEL 1719 select CPU_SUPPORTS_HIGHMEM 1720 select CPU_SUPPORTS_HUGEPAGES 1721 select WEAK_ORDERING 1722 select WEAK_REORDERING_BEYOND_LLSC 1723 help 1724 Netlogic Microsystems XLR/XLS processors. 1725 1726config CPU_XLP 1727 bool "Netlogic XLP SoC" 1728 depends on SYS_HAS_CPU_XLP 1729 select CPU_SUPPORTS_32BIT_KERNEL 1730 select CPU_SUPPORTS_64BIT_KERNEL 1731 select CPU_SUPPORTS_HIGHMEM 1732 select WEAK_ORDERING 1733 select WEAK_REORDERING_BEYOND_LLSC 1734 select CPU_HAS_PREFETCH 1735 select CPU_MIPSR2 1736 select CPU_SUPPORTS_HUGEPAGES 1737 select MIPS_ASID_BITS_VARIABLE 1738 help 1739 Netlogic Microsystems XLP processors. 1740endchoice 1741 1742config CPU_MIPS32_3_5_FEATURES 1743 bool "MIPS32 Release 3.5 Features" 1744 depends on SYS_HAS_CPU_MIPS32_R3_5 1745 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1746 help 1747 Choose this option to build a kernel for release 2 or later of the 1748 MIPS32 architecture including features from the 3.5 release such as 1749 support for Enhanced Virtual Addressing (EVA). 1750 1751config CPU_MIPS32_3_5_EVA 1752 bool "Enhanced Virtual Addressing (EVA)" 1753 depends on CPU_MIPS32_3_5_FEATURES 1754 select EVA 1755 default y 1756 help 1757 Choose this option if you want to enable the Enhanced Virtual 1758 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1759 One of its primary benefits is an increase in the maximum size 1760 of lowmem (up to 3GB). If unsure, say 'N' here. 1761 1762config CPU_MIPS32_R5_FEATURES 1763 bool "MIPS32 Release 5 Features" 1764 depends on SYS_HAS_CPU_MIPS32_R5 1765 depends on CPU_MIPS32_R2 1766 help 1767 Choose this option to build a kernel for release 2 or later of the 1768 MIPS32 architecture including features from release 5 such as 1769 support for Extended Physical Addressing (XPA). 1770 1771config CPU_MIPS32_R5_XPA 1772 bool "Extended Physical Addressing (XPA)" 1773 depends on CPU_MIPS32_R5_FEATURES 1774 depends on !EVA 1775 depends on !PAGE_SIZE_4KB 1776 depends on SYS_SUPPORTS_HIGHMEM 1777 select XPA 1778 select HIGHMEM 1779 select PHYS_ADDR_T_64BIT 1780 default n 1781 help 1782 Choose this option if you want to enable the Extended Physical 1783 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1784 benefit is to increase physical addressing equal to or greater 1785 than 40 bits. Note that this has the side effect of turning on 1786 64-bit addressing which in turn makes the PTEs 64-bit in size. 1787 If unsure, say 'N' here. 1788 1789if CPU_LOONGSON2F 1790config CPU_NOP_WORKAROUNDS 1791 bool 1792 1793config CPU_JUMP_WORKAROUNDS 1794 bool 1795 1796config CPU_LOONGSON2F_WORKAROUNDS 1797 bool "Loongson 2F Workarounds" 1798 default y 1799 select CPU_NOP_WORKAROUNDS 1800 select CPU_JUMP_WORKAROUNDS 1801 help 1802 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1803 require workarounds. Without workarounds the system may hang 1804 unexpectedly. For more information please refer to the gas 1805 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1806 1807 Loongson 2F03 and later have fixed these issues and no workarounds 1808 are needed. The workarounds have no significant side effect on them 1809 but may decrease the performance of the system so this option should 1810 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1811 systems. 1812 1813 If unsure, please say Y. 1814endif # CPU_LOONGSON2F 1815 1816config SYS_SUPPORTS_ZBOOT 1817 bool 1818 select HAVE_KERNEL_GZIP 1819 select HAVE_KERNEL_BZIP2 1820 select HAVE_KERNEL_LZ4 1821 select HAVE_KERNEL_LZMA 1822 select HAVE_KERNEL_LZO 1823 select HAVE_KERNEL_XZ 1824 1825config SYS_SUPPORTS_ZBOOT_UART16550 1826 bool 1827 select SYS_SUPPORTS_ZBOOT 1828 1829config SYS_SUPPORTS_ZBOOT_UART_PROM 1830 bool 1831 select SYS_SUPPORTS_ZBOOT 1832 1833config CPU_LOONGSON2 1834 bool 1835 select CPU_SUPPORTS_32BIT_KERNEL 1836 select CPU_SUPPORTS_64BIT_KERNEL 1837 select CPU_SUPPORTS_HIGHMEM 1838 select CPU_SUPPORTS_HUGEPAGES 1839 select ARCH_HAS_PHYS_TO_DMA 1840 1841config CPU_LOONGSON1 1842 bool 1843 select CPU_MIPS32 1844 select CPU_MIPSR1 1845 select CPU_HAS_PREFETCH 1846 select CPU_SUPPORTS_32BIT_KERNEL 1847 select CPU_SUPPORTS_HIGHMEM 1848 select CPU_SUPPORTS_CPUFREQ 1849 1850config CPU_BMIPS32_3300 1851 select SMP_UP if SMP 1852 bool 1853 1854config CPU_BMIPS4350 1855 bool 1856 select SYS_SUPPORTS_SMP 1857 select SYS_SUPPORTS_HOTPLUG_CPU 1858 1859config CPU_BMIPS4380 1860 bool 1861 select MIPS_L1_CACHE_SHIFT_6 1862 select SYS_SUPPORTS_SMP 1863 select SYS_SUPPORTS_HOTPLUG_CPU 1864 select CPU_HAS_RIXI 1865 1866config CPU_BMIPS5000 1867 bool 1868 select MIPS_CPU_SCACHE 1869 select MIPS_L1_CACHE_SHIFT_7 1870 select SYS_SUPPORTS_SMP 1871 select SYS_SUPPORTS_HOTPLUG_CPU 1872 select CPU_HAS_RIXI 1873 1874config SYS_HAS_CPU_LOONGSON3 1875 bool 1876 select CPU_SUPPORTS_CPUFREQ 1877 select CPU_HAS_RIXI 1878 1879config SYS_HAS_CPU_LOONGSON2E 1880 bool 1881 1882config SYS_HAS_CPU_LOONGSON2F 1883 bool 1884 select CPU_SUPPORTS_CPUFREQ 1885 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1886 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1887 1888config SYS_HAS_CPU_LOONGSON1B 1889 bool 1890 1891config SYS_HAS_CPU_LOONGSON1C 1892 bool 1893 1894config SYS_HAS_CPU_MIPS32_R1 1895 bool 1896 1897config SYS_HAS_CPU_MIPS32_R2 1898 bool 1899 1900config SYS_HAS_CPU_MIPS32_R3_5 1901 bool 1902 1903config SYS_HAS_CPU_MIPS32_R5 1904 bool 1905 1906config SYS_HAS_CPU_MIPS32_R6 1907 bool 1908 1909config SYS_HAS_CPU_MIPS64_R1 1910 bool 1911 1912config SYS_HAS_CPU_MIPS64_R2 1913 bool 1914 1915config SYS_HAS_CPU_MIPS64_R6 1916 bool 1917 1918config SYS_HAS_CPU_R3000 1919 bool 1920 1921config SYS_HAS_CPU_TX39XX 1922 bool 1923 1924config SYS_HAS_CPU_VR41XX 1925 bool 1926 1927config SYS_HAS_CPU_R4300 1928 bool 1929 1930config SYS_HAS_CPU_R4X00 1931 bool 1932 1933config SYS_HAS_CPU_TX49XX 1934 bool 1935 1936config SYS_HAS_CPU_R5000 1937 bool 1938 1939config SYS_HAS_CPU_R5432 1940 bool 1941 1942config SYS_HAS_CPU_R5500 1943 bool 1944 1945config SYS_HAS_CPU_NEVADA 1946 bool 1947 1948config SYS_HAS_CPU_R8000 1949 bool 1950 1951config SYS_HAS_CPU_R10000 1952 bool 1953 1954config SYS_HAS_CPU_RM7000 1955 bool 1956 1957config SYS_HAS_CPU_SB1 1958 bool 1959 1960config SYS_HAS_CPU_CAVIUM_OCTEON 1961 bool 1962 1963config SYS_HAS_CPU_BMIPS 1964 bool 1965 1966config SYS_HAS_CPU_BMIPS32_3300 1967 bool 1968 select SYS_HAS_CPU_BMIPS 1969 1970config SYS_HAS_CPU_BMIPS4350 1971 bool 1972 select SYS_HAS_CPU_BMIPS 1973 1974config SYS_HAS_CPU_BMIPS4380 1975 bool 1976 select SYS_HAS_CPU_BMIPS 1977 1978config SYS_HAS_CPU_BMIPS5000 1979 bool 1980 select SYS_HAS_CPU_BMIPS 1981 1982config SYS_HAS_CPU_XLR 1983 bool 1984 1985config SYS_HAS_CPU_XLP 1986 bool 1987 1988# 1989# CPU may reorder R->R, R->W, W->R, W->W 1990# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1991# 1992config WEAK_ORDERING 1993 bool 1994 1995# 1996# CPU may reorder reads and writes beyond LL/SC 1997# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1998# 1999config WEAK_REORDERING_BEYOND_LLSC 2000 bool 2001endmenu 2002 2003# 2004# These two indicate any level of the MIPS32 and MIPS64 architecture 2005# 2006config CPU_MIPS32 2007 bool 2008 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2009 2010config CPU_MIPS64 2011 bool 2012 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2013 2014# 2015# These two indicate the revision of the architecture, either Release 1 or Release 2 2016# 2017config CPU_MIPSR1 2018 bool 2019 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2020 2021config CPU_MIPSR2 2022 bool 2023 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2024 select CPU_HAS_RIXI 2025 select MIPS_SPRAM 2026 2027config CPU_MIPSR6 2028 bool 2029 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2030 select CPU_HAS_RIXI 2031 select HAVE_ARCH_BITREVERSE 2032 select MIPS_ASID_BITS_VARIABLE 2033 select MIPS_CRC_SUPPORT 2034 select MIPS_SPRAM 2035 2036config EVA 2037 bool 2038 2039config XPA 2040 bool 2041 2042config SYS_SUPPORTS_32BIT_KERNEL 2043 bool 2044config SYS_SUPPORTS_64BIT_KERNEL 2045 bool 2046config CPU_SUPPORTS_32BIT_KERNEL 2047 bool 2048config CPU_SUPPORTS_64BIT_KERNEL 2049 bool 2050config CPU_SUPPORTS_CPUFREQ 2051 bool 2052config CPU_SUPPORTS_ADDRWINCFG 2053 bool 2054config CPU_SUPPORTS_HUGEPAGES 2055 bool 2056config CPU_SUPPORTS_UNCACHED_ACCELERATED 2057 bool 2058config MIPS_PGD_C0_CONTEXT 2059 bool 2060 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2061 2062# 2063# Set to y for ptrace access to watch registers. 2064# 2065config HARDWARE_WATCHPOINTS 2066 bool 2067 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2068 2069menu "Kernel type" 2070 2071choice 2072 prompt "Kernel code model" 2073 help 2074 You should only select this option if you have a workload that 2075 actually benefits from 64-bit processing or if your machine has 2076 large memory. You will only be presented a single option in this 2077 menu if your system does not support both 32-bit and 64-bit kernels. 2078 2079config 32BIT 2080 bool "32-bit kernel" 2081 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2082 select TRAD_SIGNALS 2083 help 2084 Select this option if you want to build a 32-bit kernel. 2085 2086config 64BIT 2087 bool "64-bit kernel" 2088 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2089 help 2090 Select this option if you want to build a 64-bit kernel. 2091 2092endchoice 2093 2094config KVM_GUEST 2095 bool "KVM Guest Kernel" 2096 depends on BROKEN_ON_SMP 2097 help 2098 Select this option if building a guest kernel for KVM (Trap & Emulate) 2099 mode. 2100 2101config KVM_GUEST_TIMER_FREQ 2102 int "Count/Compare Timer Frequency (MHz)" 2103 depends on KVM_GUEST 2104 default 100 2105 help 2106 Set this to non-zero if building a guest kernel for KVM to skip RTC 2107 emulation when determining guest CPU Frequency. Instead, the guest's 2108 timer frequency is specified directly. 2109 2110config MIPS_VA_BITS_48 2111 bool "48 bits virtual memory" 2112 depends on 64BIT 2113 help 2114 Support a maximum at least 48 bits of application virtual 2115 memory. Default is 40 bits or less, depending on the CPU. 2116 For page sizes 16k and above, this option results in a small 2117 memory overhead for page tables. For 4k page size, a fourth 2118 level of page tables is added which imposes both a memory 2119 overhead as well as slower TLB fault handling. 2120 2121 If unsure, say N. 2122 2123choice 2124 prompt "Kernel page size" 2125 default PAGE_SIZE_4KB 2126 2127config PAGE_SIZE_4KB 2128 bool "4kB" 2129 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2130 help 2131 This option select the standard 4kB Linux page size. On some 2132 R3000-family processors this is the only available page size. Using 2133 4kB page size will minimize memory consumption and is therefore 2134 recommended for low memory systems. 2135 2136config PAGE_SIZE_8KB 2137 bool "8kB" 2138 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2139 depends on !MIPS_VA_BITS_48 2140 help 2141 Using 8kB page size will result in higher performance kernel at 2142 the price of higher memory consumption. This option is available 2143 only on R8000 and cnMIPS processors. Note that you will need a 2144 suitable Linux distribution to support this. 2145 2146config PAGE_SIZE_16KB 2147 bool "16kB" 2148 depends on !CPU_R3000 && !CPU_TX39XX 2149 help 2150 Using 16kB page size will result in higher performance kernel at 2151 the price of higher memory consumption. This option is available on 2152 all non-R3000 family processors. Note that you will need a suitable 2153 Linux distribution to support this. 2154 2155config PAGE_SIZE_32KB 2156 bool "32kB" 2157 depends on CPU_CAVIUM_OCTEON 2158 depends on !MIPS_VA_BITS_48 2159 help 2160 Using 32kB page size will result in higher performance kernel at 2161 the price of higher memory consumption. This option is available 2162 only on cnMIPS cores. Note that you will need a suitable Linux 2163 distribution to support this. 2164 2165config PAGE_SIZE_64KB 2166 bool "64kB" 2167 depends on !CPU_R3000 && !CPU_TX39XX 2168 help 2169 Using 64kB page size will result in higher performance kernel at 2170 the price of higher memory consumption. This option is available on 2171 all non-R3000 family processor. Not that at the time of this 2172 writing this option is still high experimental. 2173 2174endchoice 2175 2176config FORCE_MAX_ZONEORDER 2177 int "Maximum zone order" 2178 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2179 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2180 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2181 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2182 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2183 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2184 range 11 64 2185 default "11" 2186 help 2187 The kernel memory allocator divides physically contiguous memory 2188 blocks into "zones", where each zone is a power of two number of 2189 pages. This option selects the largest power of two that the kernel 2190 keeps in the memory allocator. If you need to allocate very large 2191 blocks of physically contiguous memory, then you may need to 2192 increase this value. 2193 2194 This config option is actually maximum order plus one. For example, 2195 a value of 11 means that the largest free memory block is 2^10 pages. 2196 2197 The page size is not necessarily 4KB. Keep this in mind 2198 when choosing a value for this option. 2199 2200config BOARD_SCACHE 2201 bool 2202 2203config IP22_CPU_SCACHE 2204 bool 2205 select BOARD_SCACHE 2206 2207# 2208# Support for a MIPS32 / MIPS64 style S-caches 2209# 2210config MIPS_CPU_SCACHE 2211 bool 2212 select BOARD_SCACHE 2213 2214config R5000_CPU_SCACHE 2215 bool 2216 select BOARD_SCACHE 2217 2218config RM7000_CPU_SCACHE 2219 bool 2220 select BOARD_SCACHE 2221 2222config SIBYTE_DMA_PAGEOPS 2223 bool "Use DMA to clear/copy pages" 2224 depends on CPU_SB1 2225 help 2226 Instead of using the CPU to zero and copy pages, use a Data Mover 2227 channel. These DMA channels are otherwise unused by the standard 2228 SiByte Linux port. Seems to give a small performance benefit. 2229 2230config CPU_HAS_PREFETCH 2231 bool 2232 2233config CPU_GENERIC_DUMP_TLB 2234 bool 2235 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2236 2237config CPU_R4K_FPU 2238 bool 2239 default y if !(CPU_R3000 || CPU_TX39XX) 2240 2241config CPU_R4K_CACHE_TLB 2242 bool 2243 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2244 2245config MIPS_MT_SMP 2246 bool "MIPS MT SMP support (1 TC on each available VPE)" 2247 default y 2248 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2249 select CPU_MIPSR2_IRQ_VI 2250 select CPU_MIPSR2_IRQ_EI 2251 select SYNC_R4K 2252 select MIPS_MT 2253 select SMP 2254 select SMP_UP 2255 select SYS_SUPPORTS_SMP 2256 select SYS_SUPPORTS_SCHED_SMT 2257 select MIPS_PERF_SHARED_TC_COUNTERS 2258 help 2259 This is a kernel model which is known as SMVP. This is supported 2260 on cores with the MT ASE and uses the available VPEs to implement 2261 virtual processors which supports SMP. This is equivalent to the 2262 Intel Hyperthreading feature. For further information go to 2263 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2264 2265config MIPS_MT 2266 bool 2267 2268config SCHED_SMT 2269 bool "SMT (multithreading) scheduler support" 2270 depends on SYS_SUPPORTS_SCHED_SMT 2271 default n 2272 help 2273 SMT scheduler support improves the CPU scheduler's decision making 2274 when dealing with MIPS MT enabled cores at a cost of slightly 2275 increased overhead in some places. If unsure say N here. 2276 2277config SYS_SUPPORTS_SCHED_SMT 2278 bool 2279 2280config SYS_SUPPORTS_MULTITHREADING 2281 bool 2282 2283config MIPS_MT_FPAFF 2284 bool "Dynamic FPU affinity for FP-intensive threads" 2285 default y 2286 depends on MIPS_MT_SMP 2287 2288config MIPSR2_TO_R6_EMULATOR 2289 bool "MIPS R2-to-R6 emulator" 2290 depends on CPU_MIPSR6 2291 default y 2292 help 2293 Choose this option if you want to run non-R6 MIPS userland code. 2294 Even if you say 'Y' here, the emulator will still be disabled by 2295 default. You can enable it using the 'mipsr2emu' kernel option. 2296 The only reason this is a build-time option is to save ~14K from the 2297 final kernel image. 2298 2299config SYS_SUPPORTS_VPE_LOADER 2300 bool 2301 depends on SYS_SUPPORTS_MULTITHREADING 2302 help 2303 Indicates that the platform supports the VPE loader, and provides 2304 physical_memsize. 2305 2306config MIPS_VPE_LOADER 2307 bool "VPE loader support." 2308 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2309 select CPU_MIPSR2_IRQ_VI 2310 select CPU_MIPSR2_IRQ_EI 2311 select MIPS_MT 2312 help 2313 Includes a loader for loading an elf relocatable object 2314 onto another VPE and running it. 2315 2316config MIPS_VPE_LOADER_CMP 2317 bool 2318 default "y" 2319 depends on MIPS_VPE_LOADER && MIPS_CMP 2320 2321config MIPS_VPE_LOADER_MT 2322 bool 2323 default "y" 2324 depends on MIPS_VPE_LOADER && !MIPS_CMP 2325 2326config MIPS_VPE_LOADER_TOM 2327 bool "Load VPE program into memory hidden from linux" 2328 depends on MIPS_VPE_LOADER 2329 default y 2330 help 2331 The loader can use memory that is present but has been hidden from 2332 Linux using the kernel command line option "mem=xxMB". It's up to 2333 you to ensure the amount you put in the option and the space your 2334 program requires is less or equal to the amount physically present. 2335 2336config MIPS_VPE_APSP_API 2337 bool "Enable support for AP/SP API (RTLX)" 2338 depends on MIPS_VPE_LOADER 2339 2340config MIPS_VPE_APSP_API_CMP 2341 bool 2342 default "y" 2343 depends on MIPS_VPE_APSP_API && MIPS_CMP 2344 2345config MIPS_VPE_APSP_API_MT 2346 bool 2347 default "y" 2348 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2349 2350config MIPS_CMP 2351 bool "MIPS CMP framework support (DEPRECATED)" 2352 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2353 select SMP 2354 select SYNC_R4K 2355 select SYS_SUPPORTS_SMP 2356 select WEAK_ORDERING 2357 default n 2358 help 2359 Select this if you are using a bootloader which implements the "CMP 2360 framework" protocol (ie. YAMON) and want your kernel to make use of 2361 its ability to start secondary CPUs. 2362 2363 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2364 instead of this. 2365 2366config MIPS_CPS 2367 bool "MIPS Coherent Processing System support" 2368 depends on SYS_SUPPORTS_MIPS_CPS 2369 select MIPS_CM 2370 select MIPS_CPS_PM if HOTPLUG_CPU 2371 select SMP 2372 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2373 select SYS_SUPPORTS_HOTPLUG_CPU 2374 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2375 select SYS_SUPPORTS_SMP 2376 select WEAK_ORDERING 2377 help 2378 Select this if you wish to run an SMP kernel across multiple cores 2379 within a MIPS Coherent Processing System. When this option is 2380 enabled the kernel will probe for other cores and boot them with 2381 no external assistance. It is safe to enable this when hardware 2382 support is unavailable. 2383 2384config MIPS_CPS_PM 2385 depends on MIPS_CPS 2386 bool 2387 2388config MIPS_CM 2389 bool 2390 select MIPS_CPC 2391 2392config MIPS_CPC 2393 bool 2394 2395config SB1_PASS_2_WORKAROUNDS 2396 bool 2397 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2398 default y 2399 2400config SB1_PASS_2_1_WORKAROUNDS 2401 bool 2402 depends on CPU_SB1 && CPU_SB1_PASS_2 2403 default y 2404 2405 2406choice 2407 prompt "SmartMIPS or microMIPS ASE support" 2408 2409config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2410 bool "None" 2411 help 2412 Select this if you want neither microMIPS nor SmartMIPS support 2413 2414config CPU_HAS_SMARTMIPS 2415 depends on SYS_SUPPORTS_SMARTMIPS 2416 bool "SmartMIPS" 2417 help 2418 SmartMIPS is a extension of the MIPS32 architecture aimed at 2419 increased security at both hardware and software level for 2420 smartcards. Enabling this option will allow proper use of the 2421 SmartMIPS instructions by Linux applications. However a kernel with 2422 this option will not work on a MIPS core without SmartMIPS core. If 2423 you don't know you probably don't have SmartMIPS and should say N 2424 here. 2425 2426config CPU_MICROMIPS 2427 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2428 bool "microMIPS" 2429 help 2430 When this option is enabled the kernel will be built using the 2431 microMIPS ISA 2432 2433endchoice 2434 2435config CPU_HAS_MSA 2436 bool "Support for the MIPS SIMD Architecture" 2437 depends on CPU_SUPPORTS_MSA 2438 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2439 help 2440 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2441 and a set of SIMD instructions to operate on them. When this option 2442 is enabled the kernel will support allocating & switching MSA 2443 vector register contexts. If you know that your kernel will only be 2444 running on CPUs which do not support MSA or that your userland will 2445 not be making use of it then you may wish to say N here to reduce 2446 the size & complexity of your kernel. 2447 2448 If unsure, say Y. 2449 2450config CPU_HAS_WB 2451 bool 2452 2453config XKS01 2454 bool 2455 2456config CPU_HAS_RIXI 2457 bool 2458 2459# 2460# Vectored interrupt mode is an R2 feature 2461# 2462config CPU_MIPSR2_IRQ_VI 2463 bool 2464 2465# 2466# Extended interrupt mode is an R2 feature 2467# 2468config CPU_MIPSR2_IRQ_EI 2469 bool 2470 2471config CPU_HAS_SYNC 2472 bool 2473 depends on !CPU_R3000 2474 default y 2475 2476# 2477# CPU non-features 2478# 2479config CPU_DADDI_WORKAROUNDS 2480 bool 2481 2482config CPU_R4000_WORKAROUNDS 2483 bool 2484 select CPU_R4400_WORKAROUNDS 2485 2486config CPU_R4400_WORKAROUNDS 2487 bool 2488 2489config MIPS_ASID_SHIFT 2490 int 2491 default 6 if CPU_R3000 || CPU_TX39XX 2492 default 4 if CPU_R8000 2493 default 0 2494 2495config MIPS_ASID_BITS 2496 int 2497 default 0 if MIPS_ASID_BITS_VARIABLE 2498 default 6 if CPU_R3000 || CPU_TX39XX 2499 default 8 2500 2501config MIPS_ASID_BITS_VARIABLE 2502 bool 2503 2504config MIPS_CRC_SUPPORT 2505 bool 2506 2507# 2508# - Highmem only makes sense for the 32-bit kernel. 2509# - The current highmem code will only work properly on physically indexed 2510# caches such as R3000, SB1, R7000 or those that look like they're virtually 2511# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2512# moment we protect the user and offer the highmem option only on machines 2513# where it's known to be safe. This will not offer highmem on a few systems 2514# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2515# indexed CPUs but we're playing safe. 2516# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2517# know they might have memory configurations that could make use of highmem 2518# support. 2519# 2520config HIGHMEM 2521 bool "High Memory Support" 2522 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2523 2524config CPU_SUPPORTS_HIGHMEM 2525 bool 2526 2527config SYS_SUPPORTS_HIGHMEM 2528 bool 2529 2530config SYS_SUPPORTS_SMARTMIPS 2531 bool 2532 2533config SYS_SUPPORTS_MICROMIPS 2534 bool 2535 2536config SYS_SUPPORTS_MIPS16 2537 bool 2538 help 2539 This option must be set if a kernel might be executed on a MIPS16- 2540 enabled CPU even if MIPS16 is not actually being used. In other 2541 words, it makes the kernel MIPS16-tolerant. 2542 2543config CPU_SUPPORTS_MSA 2544 bool 2545 2546config ARCH_FLATMEM_ENABLE 2547 def_bool y 2548 depends on !NUMA && !CPU_LOONGSON2 2549 2550config ARCH_DISCONTIGMEM_ENABLE 2551 bool 2552 default y if SGI_IP27 2553 help 2554 Say Y to support efficient handling of discontiguous physical memory, 2555 for architectures which are either NUMA (Non-Uniform Memory Access) 2556 or have huge holes in the physical address space for other reasons. 2557 See <file:Documentation/vm/numa.rst> for more. 2558 2559config ARCH_SPARSEMEM_ENABLE 2560 bool 2561 select SPARSEMEM_STATIC 2562 2563config NUMA 2564 bool "NUMA Support" 2565 depends on SYS_SUPPORTS_NUMA 2566 help 2567 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2568 Access). This option improves performance on systems with more 2569 than two nodes; on two node systems it is generally better to 2570 leave it disabled; on single node systems disable this option 2571 disabled. 2572 2573config SYS_SUPPORTS_NUMA 2574 bool 2575 2576config RELOCATABLE 2577 bool "Relocatable kernel" 2578 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2579 help 2580 This builds a kernel image that retains relocation information 2581 so it can be loaded someplace besides the default 1MB. 2582 The relocations make the kernel binary about 15% larger, 2583 but are discarded at runtime 2584 2585config RELOCATION_TABLE_SIZE 2586 hex "Relocation table size" 2587 depends on RELOCATABLE 2588 range 0x0 0x01000000 2589 default "0x00100000" 2590 ---help--- 2591 A table of relocation data will be appended to the kernel binary 2592 and parsed at boot to fix up the relocated kernel. 2593 2594 This option allows the amount of space reserved for the table to be 2595 adjusted, although the default of 1Mb should be ok in most cases. 2596 2597 The build will fail and a valid size suggested if this is too small. 2598 2599 If unsure, leave at the default value. 2600 2601config RANDOMIZE_BASE 2602 bool "Randomize the address of the kernel image" 2603 depends on RELOCATABLE 2604 ---help--- 2605 Randomizes the physical and virtual address at which the 2606 kernel image is loaded, as a security feature that 2607 deters exploit attempts relying on knowledge of the location 2608 of kernel internals. 2609 2610 Entropy is generated using any coprocessor 0 registers available. 2611 2612 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2613 2614 If unsure, say N. 2615 2616config RANDOMIZE_BASE_MAX_OFFSET 2617 hex "Maximum kASLR offset" if EXPERT 2618 depends on RANDOMIZE_BASE 2619 range 0x0 0x40000000 if EVA || 64BIT 2620 range 0x0 0x08000000 2621 default "0x01000000" 2622 ---help--- 2623 When kASLR is active, this provides the maximum offset that will 2624 be applied to the kernel image. It should be set according to the 2625 amount of physical RAM available in the target system minus 2626 PHYSICAL_START and must be a power of 2. 2627 2628 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2629 EVA or 64-bit. The default is 16Mb. 2630 2631config NODES_SHIFT 2632 int 2633 default "6" 2634 depends on NEED_MULTIPLE_NODES 2635 2636config HW_PERF_EVENTS 2637 bool "Enable hardware performance counter support for perf events" 2638 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2639 default y 2640 help 2641 Enable hardware performance counter support for perf events. If 2642 disabled, perf events will use software events only. 2643 2644config SMP 2645 bool "Multi-Processing support" 2646 depends on SYS_SUPPORTS_SMP 2647 help 2648 This enables support for systems with more than one CPU. If you have 2649 a system with only one CPU, say N. If you have a system with more 2650 than one CPU, say Y. 2651 2652 If you say N here, the kernel will run on uni- and multiprocessor 2653 machines, but will use only one CPU of a multiprocessor machine. If 2654 you say Y here, the kernel will run on many, but not all, 2655 uniprocessor machines. On a uniprocessor machine, the kernel 2656 will run faster if you say N here. 2657 2658 People using multiprocessor machines who say Y here should also say 2659 Y to "Enhanced Real Time Clock Support", below. 2660 2661 See also the SMP-HOWTO available at 2662 <http://www.tldp.org/docs.html#howto>. 2663 2664 If you don't know what to do here, say N. 2665 2666config HOTPLUG_CPU 2667 bool "Support for hot-pluggable CPUs" 2668 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2669 help 2670 Say Y here to allow turning CPUs off and on. CPUs can be 2671 controlled through /sys/devices/system/cpu. 2672 (Note: power management support will enable this option 2673 automatically on SMP systems. ) 2674 Say N if you want to disable CPU hotplug. 2675 2676config SMP_UP 2677 bool 2678 2679config SYS_SUPPORTS_MIPS_CMP 2680 bool 2681 2682config SYS_SUPPORTS_MIPS_CPS 2683 bool 2684 2685config SYS_SUPPORTS_SMP 2686 bool 2687 2688config NR_CPUS_DEFAULT_4 2689 bool 2690 2691config NR_CPUS_DEFAULT_8 2692 bool 2693 2694config NR_CPUS_DEFAULT_16 2695 bool 2696 2697config NR_CPUS_DEFAULT_32 2698 bool 2699 2700config NR_CPUS_DEFAULT_64 2701 bool 2702 2703config NR_CPUS 2704 int "Maximum number of CPUs (2-256)" 2705 range 2 256 2706 depends on SMP 2707 default "4" if NR_CPUS_DEFAULT_4 2708 default "8" if NR_CPUS_DEFAULT_8 2709 default "16" if NR_CPUS_DEFAULT_16 2710 default "32" if NR_CPUS_DEFAULT_32 2711 default "64" if NR_CPUS_DEFAULT_64 2712 help 2713 This allows you to specify the maximum number of CPUs which this 2714 kernel will support. The maximum supported value is 32 for 32-bit 2715 kernel and 64 for 64-bit kernels; the minimum value which makes 2716 sense is 1 for Qemu (useful only for kernel debugging purposes) 2717 and 2 for all others. 2718 2719 This is purely to save memory - each supported CPU adds 2720 approximately eight kilobytes to the kernel image. For best 2721 performance should round up your number of processors to the next 2722 power of two. 2723 2724config MIPS_PERF_SHARED_TC_COUNTERS 2725 bool 2726 2727config MIPS_NR_CPU_NR_MAP_1024 2728 bool 2729 2730config MIPS_NR_CPU_NR_MAP 2731 int 2732 depends on SMP 2733 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2734 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2735 2736# 2737# Timer Interrupt Frequency Configuration 2738# 2739 2740choice 2741 prompt "Timer frequency" 2742 default HZ_250 2743 help 2744 Allows the configuration of the timer frequency. 2745 2746 config HZ_24 2747 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2748 2749 config HZ_48 2750 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2751 2752 config HZ_100 2753 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2754 2755 config HZ_128 2756 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2757 2758 config HZ_250 2759 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2760 2761 config HZ_256 2762 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2763 2764 config HZ_1000 2765 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2766 2767 config HZ_1024 2768 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2769 2770endchoice 2771 2772config SYS_SUPPORTS_24HZ 2773 bool 2774 2775config SYS_SUPPORTS_48HZ 2776 bool 2777 2778config SYS_SUPPORTS_100HZ 2779 bool 2780 2781config SYS_SUPPORTS_128HZ 2782 bool 2783 2784config SYS_SUPPORTS_250HZ 2785 bool 2786 2787config SYS_SUPPORTS_256HZ 2788 bool 2789 2790config SYS_SUPPORTS_1000HZ 2791 bool 2792 2793config SYS_SUPPORTS_1024HZ 2794 bool 2795 2796config SYS_SUPPORTS_ARBIT_HZ 2797 bool 2798 default y if !SYS_SUPPORTS_24HZ && \ 2799 !SYS_SUPPORTS_48HZ && \ 2800 !SYS_SUPPORTS_100HZ && \ 2801 !SYS_SUPPORTS_128HZ && \ 2802 !SYS_SUPPORTS_250HZ && \ 2803 !SYS_SUPPORTS_256HZ && \ 2804 !SYS_SUPPORTS_1000HZ && \ 2805 !SYS_SUPPORTS_1024HZ 2806 2807config HZ 2808 int 2809 default 24 if HZ_24 2810 default 48 if HZ_48 2811 default 100 if HZ_100 2812 default 128 if HZ_128 2813 default 250 if HZ_250 2814 default 256 if HZ_256 2815 default 1000 if HZ_1000 2816 default 1024 if HZ_1024 2817 2818config SCHED_HRTICK 2819 def_bool HIGH_RES_TIMERS 2820 2821config KEXEC 2822 bool "Kexec system call" 2823 select KEXEC_CORE 2824 help 2825 kexec is a system call that implements the ability to shutdown your 2826 current kernel, and to start another kernel. It is like a reboot 2827 but it is independent of the system firmware. And like a reboot 2828 you can start any kernel with it, not just Linux. 2829 2830 The name comes from the similarity to the exec system call. 2831 2832 It is an ongoing process to be certain the hardware in a machine 2833 is properly shutdown, so do not be surprised if this code does not 2834 initially work for you. As of this writing the exact hardware 2835 interface is strongly in flux, so no good recommendation can be 2836 made. 2837 2838config CRASH_DUMP 2839 bool "Kernel crash dumps" 2840 help 2841 Generate crash dump after being started by kexec. 2842 This should be normally only set in special crash dump kernels 2843 which are loaded in the main kernel with kexec-tools into 2844 a specially reserved region and then later executed after 2845 a crash by kdump/kexec. The crash dump kernel must be compiled 2846 to a memory address not used by the main kernel or firmware using 2847 PHYSICAL_START. 2848 2849config PHYSICAL_START 2850 hex "Physical address where the kernel is loaded" 2851 default "0xffffffff84000000" 2852 depends on CRASH_DUMP 2853 help 2854 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2855 If you plan to use kernel for capturing the crash dump change 2856 this value to start of the reserved region (the "X" value as 2857 specified in the "crashkernel=YM@XM" command line boot parameter 2858 passed to the panic-ed kernel). 2859 2860config SECCOMP 2861 bool "Enable seccomp to safely compute untrusted bytecode" 2862 depends on PROC_FS 2863 default y 2864 help 2865 This kernel feature is useful for number crunching applications 2866 that may need to compute untrusted bytecode during their 2867 execution. By using pipes or other transports made available to 2868 the process as file descriptors supporting the read/write 2869 syscalls, it's possible to isolate those applications in 2870 their own address space using seccomp. Once seccomp is 2871 enabled via /proc/<pid>/seccomp, it cannot be disabled 2872 and the task is only allowed to execute a few safe syscalls 2873 defined by each seccomp mode. 2874 2875 If unsure, say Y. Only embedded should say N here. 2876 2877config MIPS_O32_FP64_SUPPORT 2878 bool "Support for O32 binaries using 64-bit FP" 2879 depends on 32BIT || MIPS32_O32 2880 help 2881 When this is enabled, the kernel will support use of 64-bit floating 2882 point registers with binaries using the O32 ABI along with the 2883 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2884 32-bit MIPS systems this support is at the cost of increasing the 2885 size and complexity of the compiled FPU emulator. Thus if you are 2886 running a MIPS32 system and know that none of your userland binaries 2887 will require 64-bit floating point, you may wish to reduce the size 2888 of your kernel & potentially improve FP emulation performance by 2889 saying N here. 2890 2891 Although binutils currently supports use of this flag the details 2892 concerning its effect upon the O32 ABI in userland are still being 2893 worked on. In order to avoid userland becoming dependant upon current 2894 behaviour before the details have been finalised, this option should 2895 be considered experimental and only enabled by those working upon 2896 said details. 2897 2898 If unsure, say N. 2899 2900config USE_OF 2901 bool 2902 select OF 2903 select OF_EARLY_FLATTREE 2904 select IRQ_DOMAIN 2905 2906config BUILTIN_DTB 2907 bool 2908 2909choice 2910 prompt "Kernel appended dtb support" if USE_OF 2911 default MIPS_NO_APPENDED_DTB 2912 2913 config MIPS_NO_APPENDED_DTB 2914 bool "None" 2915 help 2916 Do not enable appended dtb support. 2917 2918 config MIPS_ELF_APPENDED_DTB 2919 bool "vmlinux" 2920 help 2921 With this option, the boot code will look for a device tree binary 2922 DTB) included in the vmlinux ELF section .appended_dtb. By default 2923 it is empty and the DTB can be appended using binutils command 2924 objcopy: 2925 2926 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2927 2928 This is meant as a backward compatiblity convenience for those 2929 systems with a bootloader that can't be upgraded to accommodate 2930 the documented boot protocol using a device tree. 2931 2932 config MIPS_RAW_APPENDED_DTB 2933 bool "vmlinux.bin or vmlinuz.bin" 2934 help 2935 With this option, the boot code will look for a device tree binary 2936 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2937 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2938 2939 This is meant as a backward compatibility convenience for those 2940 systems with a bootloader that can't be upgraded to accommodate 2941 the documented boot protocol using a device tree. 2942 2943 Beware that there is very little in terms of protection against 2944 this option being confused by leftover garbage in memory that might 2945 look like a DTB header after a reboot if no actual DTB is appended 2946 to vmlinux.bin. Do not leave this option active in a production kernel 2947 if you don't intend to always append a DTB. 2948endchoice 2949 2950choice 2951 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2952 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2953 !MIPS_MALTA && \ 2954 !CAVIUM_OCTEON_SOC 2955 default MIPS_CMDLINE_FROM_BOOTLOADER 2956 2957 config MIPS_CMDLINE_FROM_DTB 2958 depends on USE_OF 2959 bool "Dtb kernel arguments if available" 2960 2961 config MIPS_CMDLINE_DTB_EXTEND 2962 depends on USE_OF 2963 bool "Extend dtb kernel arguments with bootloader arguments" 2964 2965 config MIPS_CMDLINE_FROM_BOOTLOADER 2966 bool "Bootloader kernel arguments if available" 2967 2968 config MIPS_CMDLINE_BUILTIN_EXTEND 2969 depends on CMDLINE_BOOL 2970 bool "Extend builtin kernel arguments with bootloader arguments" 2971endchoice 2972 2973endmenu 2974 2975config LOCKDEP_SUPPORT 2976 bool 2977 default y 2978 2979config STACKTRACE_SUPPORT 2980 bool 2981 default y 2982 2983config HAVE_LATENCYTOP_SUPPORT 2984 bool 2985 default y 2986 2987config PGTABLE_LEVELS 2988 int 2989 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 2990 default 3 if 64BIT && !PAGE_SIZE_64KB 2991 default 2 2992 2993config MIPS_AUTO_PFN_OFFSET 2994 bool 2995 2996menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2997 2998config HW_HAS_EISA 2999 bool 3000config HW_HAS_PCI 3001 bool 3002 3003config PCI 3004 bool "Support for PCI controller" 3005 depends on HW_HAS_PCI 3006 select PCI_DOMAINS 3007 help 3008 Find out whether you have a PCI motherboard. PCI is the name of a 3009 bus system, i.e. the way the CPU talks to the other stuff inside 3010 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3011 say Y, otherwise N. 3012 3013config HT_PCI 3014 bool "Support for HT-linked PCI" 3015 default y 3016 depends on CPU_LOONGSON3 3017 select PCI 3018 select PCI_DOMAINS 3019 help 3020 Loongson family machines use Hyper-Transport bus for inter-core 3021 connection and device connection. The PCI bus is a subordinate 3022 linked at HT. Choose Y for Loongson-3 based machines. 3023 3024config PCI_DOMAINS 3025 bool 3026 3027config PCI_DOMAINS_GENERIC 3028 bool 3029 3030config PCI_DRIVERS_GENERIC 3031 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3032 bool 3033 3034config PCI_DRIVERS_LEGACY 3035 def_bool !PCI_DRIVERS_GENERIC 3036 select NO_GENERIC_PCI_IOPORT_MAP 3037 3038source "drivers/pci/Kconfig" 3039 3040# 3041# ISA support is now enabled via select. Too many systems still have the one 3042# or other ISA chip on the board that users don't know about so don't expect 3043# users to choose the right thing ... 3044# 3045config ISA 3046 bool 3047 3048config EISA 3049 bool "EISA support" 3050 depends on HW_HAS_EISA 3051 select ISA 3052 select GENERIC_ISA_DMA 3053 ---help--- 3054 The Extended Industry Standard Architecture (EISA) bus was 3055 developed as an open alternative to the IBM MicroChannel bus. 3056 3057 The EISA bus provided some of the features of the IBM MicroChannel 3058 bus while maintaining backward compatibility with cards made for 3059 the older ISA bus. The EISA bus saw limited use between 1988 and 3060 1995 when it was made obsolete by the PCI bus. 3061 3062 Say Y here if you are building a kernel for an EISA-based machine. 3063 3064 Otherwise, say N. 3065 3066source "drivers/eisa/Kconfig" 3067 3068config TC 3069 bool "TURBOchannel support" 3070 depends on MACH_DECSTATION 3071 help 3072 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3073 processors. TURBOchannel programming specifications are available 3074 at: 3075 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3076 and: 3077 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3078 Linux driver support status is documented at: 3079 <http://www.linux-mips.org/wiki/DECstation> 3080 3081config MMU 3082 bool 3083 default y 3084 3085config ARCH_MMAP_RND_BITS_MIN 3086 default 12 if 64BIT 3087 default 8 3088 3089config ARCH_MMAP_RND_BITS_MAX 3090 default 18 if 64BIT 3091 default 15 3092 3093config ARCH_MMAP_RND_COMPAT_BITS_MIN 3094 default 8 3095 3096config ARCH_MMAP_RND_COMPAT_BITS_MAX 3097 default 15 3098 3099config I8253 3100 bool 3101 select CLKSRC_I8253 3102 select CLKEVT_I8253 3103 select MIPS_EXTERNAL_TIMER 3104 3105config ZONE_DMA 3106 bool 3107 3108config ZONE_DMA32 3109 bool 3110 3111source "drivers/pcmcia/Kconfig" 3112 3113config HAS_RAPIDIO 3114 bool 3115 default n 3116 3117config RAPIDIO 3118 tristate "RapidIO support" 3119 depends on HAS_RAPIDIO || PCI 3120 help 3121 If you say Y here, the kernel will include drivers and 3122 infrastructure code to support RapidIO interconnect devices. 3123 3124source "drivers/rapidio/Kconfig" 3125 3126endmenu 3127 3128config TRAD_SIGNALS 3129 bool 3130 3131config MIPS32_COMPAT 3132 bool 3133 3134config COMPAT 3135 bool 3136 3137config SYSVIPC_COMPAT 3138 bool 3139 3140config MIPS32_O32 3141 bool "Kernel support for o32 binaries" 3142 depends on 64BIT 3143 select ARCH_WANT_OLD_COMPAT_IPC 3144 select COMPAT 3145 select MIPS32_COMPAT 3146 select SYSVIPC_COMPAT if SYSVIPC 3147 help 3148 Select this option if you want to run o32 binaries. These are pure 3149 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3150 existing binaries are in this format. 3151 3152 If unsure, say Y. 3153 3154config MIPS32_N32 3155 bool "Kernel support for n32 binaries" 3156 depends on 64BIT 3157 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3158 select COMPAT 3159 select MIPS32_COMPAT 3160 select SYSVIPC_COMPAT if SYSVIPC 3161 help 3162 Select this option if you want to run n32 binaries. These are 3163 64-bit binaries using 32-bit quantities for addressing and certain 3164 data that would normally be 64-bit. They are used in special 3165 cases. 3166 3167 If unsure, say N. 3168 3169config BINFMT_ELF32 3170 bool 3171 default y if MIPS32_O32 || MIPS32_N32 3172 select ELFCORE 3173 3174menu "Power management options" 3175 3176config ARCH_HIBERNATION_POSSIBLE 3177 def_bool y 3178 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3179 3180config ARCH_SUSPEND_POSSIBLE 3181 def_bool y 3182 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3183 3184source "kernel/power/Kconfig" 3185 3186endmenu 3187 3188config MIPS_EXTERNAL_TIMER 3189 bool 3190 3191menu "CPU Power Management" 3192 3193if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3194source "drivers/cpufreq/Kconfig" 3195endif 3196 3197source "drivers/cpuidle/Kconfig" 3198 3199endmenu 3200 3201source "drivers/firmware/Kconfig" 3202 3203source "arch/mips/kvm/Kconfig" 3204