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_IOMAP 25 select GENERIC_IRQ_PROBE 26 select GENERIC_IRQ_SHOW 27 select GENERIC_LIB_ASHLDI3 28 select GENERIC_LIB_ASHRDI3 29 select GENERIC_LIB_CMPDI2 30 select GENERIC_LIB_LSHRDI3 31 select GENERIC_LIB_UCMPDI2 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_NODE_MAP 64 select HAVE_MOD_ARCH_SPECIFIC 65 select HAVE_NMI 66 select HAVE_OPROFILE 67 select HAVE_PERF_EVENTS 68 select HAVE_REGS_AND_STACK_ACCESS_API 69 select HAVE_RSEQ 70 select HAVE_STACKPROTECTOR 71 select HAVE_SYSCALL_TRACEPOINTS 72 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 73 select IRQ_FORCED_THREADING 74 select MODULES_USE_ELF_RELA if MODULES && 64BIT 75 select MODULES_USE_ELF_REL if MODULES 76 select PERF_USE_VMALLOC 77 select RTC_LIB 78 select SYSCTL_EXCEPTION_TRACE 79 select VIRT_TO_BUS 80 81menu "Machine selection" 82 83choice 84 prompt "System type" 85 default MIPS_GENERIC 86 87config MIPS_GENERIC 88 bool "Generic board-agnostic MIPS kernel" 89 select BOOT_RAW 90 select BUILTIN_DTB 91 select CEVT_R4K 92 select CLKSRC_MIPS_GIC 93 select COMMON_CLK 94 select CPU_MIPSR2_IRQ_VI 95 select CPU_MIPSR2_IRQ_EI 96 select CSRC_R4K 97 select DMA_PERDEV_COHERENT 98 select HW_HAS_PCI 99 select IRQ_MIPS_CPU 100 select LIBFDT 101 select MIPS_AUTO_PFN_OFFSET 102 select MIPS_CPU_SCACHE 103 select MIPS_GIC 104 select MIPS_L1_CACHE_SHIFT_7 105 select NO_EXCEPT_FILL 106 select PCI_DRIVERS_GENERIC 107 select PINCTRL 108 select SMP_UP if SMP 109 select SWAP_IO_SPACE 110 select SYS_HAS_CPU_MIPS32_R1 111 select SYS_HAS_CPU_MIPS32_R2 112 select SYS_HAS_CPU_MIPS32_R6 113 select SYS_HAS_CPU_MIPS64_R1 114 select SYS_HAS_CPU_MIPS64_R2 115 select SYS_HAS_CPU_MIPS64_R6 116 select SYS_SUPPORTS_32BIT_KERNEL 117 select SYS_SUPPORTS_64BIT_KERNEL 118 select SYS_SUPPORTS_BIG_ENDIAN 119 select SYS_SUPPORTS_HIGHMEM 120 select SYS_SUPPORTS_LITTLE_ENDIAN 121 select SYS_SUPPORTS_MICROMIPS 122 select SYS_SUPPORTS_MIPS_CPS 123 select SYS_SUPPORTS_MIPS16 124 select SYS_SUPPORTS_MULTITHREADING 125 select SYS_SUPPORTS_RELOCATABLE 126 select SYS_SUPPORTS_SMARTMIPS 127 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 128 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 129 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 130 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 131 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 132 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 133 select USE_OF 134 select UHI_BOOT 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 798config SIBYTE_LITTLESUR 799 bool "Sibyte BCM91250C2-LittleSur" 800 select BOOT_ELF32 801 select HAVE_PATA_PLATFORM 802 select SIBYTE_SB1250 803 select SWAP_IO_SPACE 804 select SYS_HAS_CPU_SB1 805 select SYS_SUPPORTS_BIG_ENDIAN 806 select SYS_SUPPORTS_HIGHMEM 807 select SYS_SUPPORTS_LITTLE_ENDIAN 808 809config SIBYTE_SENTOSA 810 bool "Sibyte BCM91250E-Sentosa" 811 select BOOT_ELF32 812 select SIBYTE_SB1250 813 select SWAP_IO_SPACE 814 select SYS_HAS_CPU_SB1 815 select SYS_SUPPORTS_BIG_ENDIAN 816 select SYS_SUPPORTS_LITTLE_ENDIAN 817 818config SIBYTE_BIGSUR 819 bool "Sibyte BCM91480B-BigSur" 820 select BOOT_ELF32 821 select NR_CPUS_DEFAULT_4 822 select SIBYTE_BCM1x80 823 select SWAP_IO_SPACE 824 select SYS_HAS_CPU_SB1 825 select SYS_SUPPORTS_BIG_ENDIAN 826 select SYS_SUPPORTS_HIGHMEM 827 select SYS_SUPPORTS_LITTLE_ENDIAN 828 select ZONE_DMA32 if 64BIT 829 830config SNI_RM 831 bool "SNI RM200/300/400" 832 select FW_ARC if CPU_LITTLE_ENDIAN 833 select FW_ARC32 if CPU_LITTLE_ENDIAN 834 select FW_SNIPROM if CPU_BIG_ENDIAN 835 select ARCH_MAY_HAVE_PC_FDC 836 select ARCH_MIGHT_HAVE_PC_PARPORT 837 select ARCH_MIGHT_HAVE_PC_SERIO 838 select BOOT_ELF32 839 select CEVT_R4K 840 select CSRC_R4K 841 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 842 select DMA_NONCOHERENT 843 select GENERIC_ISA_DMA 844 select HAVE_PCSPKR_PLATFORM 845 select HW_HAS_EISA 846 select HW_HAS_PCI 847 select IRQ_MIPS_CPU 848 select I8253 849 select I8259 850 select ISA 851 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 852 select SYS_HAS_CPU_R4X00 853 select SYS_HAS_CPU_R5000 854 select SYS_HAS_CPU_R10000 855 select R5000_CPU_SCACHE 856 select SYS_HAS_EARLY_PRINTK 857 select SYS_SUPPORTS_32BIT_KERNEL 858 select SYS_SUPPORTS_64BIT_KERNEL 859 select SYS_SUPPORTS_BIG_ENDIAN 860 select SYS_SUPPORTS_HIGHMEM 861 select SYS_SUPPORTS_LITTLE_ENDIAN 862 help 863 The SNI RM200/300/400 are MIPS-based machines manufactured by 864 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 865 Technology and now in turn merged with Fujitsu. Say Y here to 866 support this machine type. 867 868config MACH_TX39XX 869 bool "Toshiba TX39 series based machines" 870 871config MACH_TX49XX 872 bool "Toshiba TX49 series based machines" 873 874config MIKROTIK_RB532 875 bool "Mikrotik RB532 boards" 876 select CEVT_R4K 877 select CSRC_R4K 878 select DMA_NONCOHERENT 879 select HW_HAS_PCI 880 select IRQ_MIPS_CPU 881 select SYS_HAS_CPU_MIPS32_R1 882 select SYS_SUPPORTS_32BIT_KERNEL 883 select SYS_SUPPORTS_LITTLE_ENDIAN 884 select SWAP_IO_SPACE 885 select BOOT_RAW 886 select GPIOLIB 887 select MIPS_L1_CACHE_SHIFT_4 888 help 889 Support the Mikrotik(tm) RouterBoard 532 series, 890 based on the IDT RC32434 SoC. 891 892config CAVIUM_OCTEON_SOC 893 bool "Cavium Networks Octeon SoC based boards" 894 select CEVT_R4K 895 select ARCH_HAS_PHYS_TO_DMA 896 select HAS_RAPIDIO 897 select PHYS_ADDR_T_64BIT 898 select SYS_SUPPORTS_64BIT_KERNEL 899 select SYS_SUPPORTS_BIG_ENDIAN 900 select EDAC_SUPPORT 901 select EDAC_ATOMIC_SCRUB 902 select SYS_SUPPORTS_LITTLE_ENDIAN 903 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 904 select SYS_HAS_EARLY_PRINTK 905 select SYS_HAS_CPU_CAVIUM_OCTEON 906 select HW_HAS_PCI 907 select ZONE_DMA32 908 select HOLES_IN_ZONE 909 select GPIOLIB 910 select LIBFDT 911 select USE_OF 912 select ARCH_SPARSEMEM_ENABLE 913 select SYS_SUPPORTS_SMP 914 select NR_CPUS_DEFAULT_64 915 select MIPS_NR_CPU_NR_MAP_1024 916 select BUILTIN_DTB 917 select MTD_COMPLEX_MAPPINGS 918 select SWIOTLB 919 select SYS_SUPPORTS_RELOCATABLE 920 help 921 This option supports all of the Octeon reference boards from Cavium 922 Networks. It builds a kernel that dynamically determines the Octeon 923 CPU type and supports all known board reference implementations. 924 Some of the supported boards are: 925 EBT3000 926 EBH3000 927 EBH3100 928 Thunder 929 Kodama 930 Hikari 931 Say Y here for most Octeon reference boards. 932 933config NLM_XLR_BOARD 934 bool "Netlogic XLR/XLS based systems" 935 select BOOT_ELF32 936 select NLM_COMMON 937 select SYS_HAS_CPU_XLR 938 select SYS_SUPPORTS_SMP 939 select HW_HAS_PCI 940 select SWAP_IO_SPACE 941 select SYS_SUPPORTS_32BIT_KERNEL 942 select SYS_SUPPORTS_64BIT_KERNEL 943 select PHYS_ADDR_T_64BIT 944 select SYS_SUPPORTS_BIG_ENDIAN 945 select SYS_SUPPORTS_HIGHMEM 946 select NR_CPUS_DEFAULT_32 947 select CEVT_R4K 948 select CSRC_R4K 949 select IRQ_MIPS_CPU 950 select ZONE_DMA32 if 64BIT 951 select SYNC_R4K 952 select SYS_HAS_EARLY_PRINTK 953 select SYS_SUPPORTS_ZBOOT 954 select SYS_SUPPORTS_ZBOOT_UART16550 955 help 956 Support for systems based on Netlogic XLR and XLS processors. 957 Say Y here if you have a XLR or XLS based board. 958 959config NLM_XLP_BOARD 960 bool "Netlogic XLP based systems" 961 select BOOT_ELF32 962 select NLM_COMMON 963 select SYS_HAS_CPU_XLP 964 select SYS_SUPPORTS_SMP 965 select HW_HAS_PCI 966 select SYS_SUPPORTS_32BIT_KERNEL 967 select SYS_SUPPORTS_64BIT_KERNEL 968 select PHYS_ADDR_T_64BIT 969 select GPIOLIB 970 select SYS_SUPPORTS_BIG_ENDIAN 971 select SYS_SUPPORTS_LITTLE_ENDIAN 972 select SYS_SUPPORTS_HIGHMEM 973 select NR_CPUS_DEFAULT_32 974 select CEVT_R4K 975 select CSRC_R4K 976 select IRQ_MIPS_CPU 977 select ZONE_DMA32 if 64BIT 978 select SYNC_R4K 979 select SYS_HAS_EARLY_PRINTK 980 select USE_OF 981 select SYS_SUPPORTS_ZBOOT 982 select SYS_SUPPORTS_ZBOOT_UART16550 983 help 984 This board is based on Netlogic XLP Processor. 985 Say Y here if you have a XLP based board. 986 987config MIPS_PARAVIRT 988 bool "Para-Virtualized guest system" 989 select CEVT_R4K 990 select CSRC_R4K 991 select SYS_SUPPORTS_64BIT_KERNEL 992 select SYS_SUPPORTS_32BIT_KERNEL 993 select SYS_SUPPORTS_BIG_ENDIAN 994 select SYS_SUPPORTS_SMP 995 select NR_CPUS_DEFAULT_4 996 select SYS_HAS_EARLY_PRINTK 997 select SYS_HAS_CPU_MIPS32_R2 998 select SYS_HAS_CPU_MIPS64_R2 999 select SYS_HAS_CPU_CAVIUM_OCTEON 1000 select HW_HAS_PCI 1001 select SWAP_IO_SPACE 1002 help 1003 This option supports guest running under ???? 1004 1005endchoice 1006 1007source "arch/mips/alchemy/Kconfig" 1008source "arch/mips/ath25/Kconfig" 1009source "arch/mips/ath79/Kconfig" 1010source "arch/mips/bcm47xx/Kconfig" 1011source "arch/mips/bcm63xx/Kconfig" 1012source "arch/mips/bmips/Kconfig" 1013source "arch/mips/generic/Kconfig" 1014source "arch/mips/jazz/Kconfig" 1015source "arch/mips/jz4740/Kconfig" 1016source "arch/mips/lantiq/Kconfig" 1017source "arch/mips/lasat/Kconfig" 1018source "arch/mips/pic32/Kconfig" 1019source "arch/mips/pistachio/Kconfig" 1020source "arch/mips/pmcs-msp71xx/Kconfig" 1021source "arch/mips/ralink/Kconfig" 1022source "arch/mips/sgi-ip27/Kconfig" 1023source "arch/mips/sibyte/Kconfig" 1024source "arch/mips/txx9/Kconfig" 1025source "arch/mips/vr41xx/Kconfig" 1026source "arch/mips/cavium-octeon/Kconfig" 1027source "arch/mips/loongson32/Kconfig" 1028source "arch/mips/loongson64/Kconfig" 1029source "arch/mips/netlogic/Kconfig" 1030source "arch/mips/paravirt/Kconfig" 1031 1032endmenu 1033 1034config RWSEM_GENERIC_SPINLOCK 1035 bool 1036 default y 1037 1038config RWSEM_XCHGADD_ALGORITHM 1039 bool 1040 1041config GENERIC_HWEIGHT 1042 bool 1043 default y 1044 1045config GENERIC_CALIBRATE_DELAY 1046 bool 1047 default y 1048 1049config SCHED_OMIT_FRAME_POINTER 1050 bool 1051 default y 1052 1053# 1054# Select some configuration options automatically based on user selections. 1055# 1056config FW_ARC 1057 bool 1058 1059config ARCH_MAY_HAVE_PC_FDC 1060 bool 1061 1062config BOOT_RAW 1063 bool 1064 1065config CEVT_BCM1480 1066 bool 1067 1068config CEVT_DS1287 1069 bool 1070 1071config CEVT_GT641XX 1072 bool 1073 1074config CEVT_R4K 1075 bool 1076 1077config CEVT_SB1250 1078 bool 1079 1080config CEVT_TXX9 1081 bool 1082 1083config CSRC_BCM1480 1084 bool 1085 1086config CSRC_IOASIC 1087 bool 1088 1089config CSRC_R4K 1090 bool 1091 1092config CSRC_SB1250 1093 bool 1094 1095config MIPS_CLOCK_VSYSCALL 1096 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1097 1098config GPIO_TXX9 1099 select GPIOLIB 1100 bool 1101 1102config FW_CFE 1103 bool 1104 1105config ARCH_SUPPORTS_UPROBES 1106 bool 1107 1108config DMA_MAYBE_COHERENT 1109 select ARCH_HAS_DMA_COHERENCE_H 1110 select DMA_NONCOHERENT 1111 bool 1112 1113config DMA_PERDEV_COHERENT 1114 bool 1115 select DMA_NONCOHERENT 1116 1117config DMA_NONCOHERENT 1118 bool 1119 select ARCH_HAS_DMA_MMAP_PGPROT 1120 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1121 select ARCH_HAS_SYNC_DMA_FOR_CPU 1122 select NEED_DMA_MAP_STATE 1123 select ARCH_HAS_DMA_COHERENT_TO_PFN 1124 select DMA_NONCOHERENT_CACHE_SYNC 1125 1126config SYS_HAS_EARLY_PRINTK 1127 bool 1128 1129config SYS_SUPPORTS_HOTPLUG_CPU 1130 bool 1131 1132config MIPS_BONITO64 1133 bool 1134 1135config MIPS_MSC 1136 bool 1137 1138config MIPS_NILE4 1139 bool 1140 1141config SYNC_R4K 1142 bool 1143 1144config MIPS_MACHINE 1145 def_bool n 1146 1147config NO_IOPORT_MAP 1148 def_bool n 1149 1150config GENERIC_CSUM 1151 bool 1152 default y if !CPU_HAS_LOAD_STORE_LR 1153 1154config GENERIC_ISA_DMA 1155 bool 1156 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1157 select ISA_DMA_API 1158 1159config GENERIC_ISA_DMA_SUPPORT_BROKEN 1160 bool 1161 select GENERIC_ISA_DMA 1162 1163config ISA_DMA_API 1164 bool 1165 1166config HOLES_IN_ZONE 1167 bool 1168 1169config SYS_SUPPORTS_RELOCATABLE 1170 bool 1171 help 1172 Selected if the platform supports relocating the kernel. 1173 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1174 to allow access to command line and entropy sources. 1175 1176config MIPS_CBPF_JIT 1177 def_bool y 1178 depends on BPF_JIT && HAVE_CBPF_JIT 1179 1180config MIPS_EBPF_JIT 1181 def_bool y 1182 depends on BPF_JIT && HAVE_EBPF_JIT 1183 1184 1185# 1186# Endianness selection. Sufficiently obscure so many users don't know what to 1187# answer,so we try hard to limit the available choices. Also the use of a 1188# choice statement should be more obvious to the user. 1189# 1190choice 1191 prompt "Endianness selection" 1192 help 1193 Some MIPS machines can be configured for either little or big endian 1194 byte order. These modes require different kernels and a different 1195 Linux distribution. In general there is one preferred byteorder for a 1196 particular system but some systems are just as commonly used in the 1197 one or the other endianness. 1198 1199config CPU_BIG_ENDIAN 1200 bool "Big endian" 1201 depends on SYS_SUPPORTS_BIG_ENDIAN 1202 1203config CPU_LITTLE_ENDIAN 1204 bool "Little endian" 1205 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1206 1207endchoice 1208 1209config EXPORT_UASM 1210 bool 1211 1212config SYS_SUPPORTS_APM_EMULATION 1213 bool 1214 1215config SYS_SUPPORTS_BIG_ENDIAN 1216 bool 1217 1218config SYS_SUPPORTS_LITTLE_ENDIAN 1219 bool 1220 1221config SYS_SUPPORTS_HUGETLBFS 1222 bool 1223 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1224 default y 1225 1226config MIPS_HUGE_TLB_SUPPORT 1227 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1228 1229config IRQ_CPU_RM7K 1230 bool 1231 1232config IRQ_MSP_SLP 1233 bool 1234 1235config IRQ_MSP_CIC 1236 bool 1237 1238config IRQ_TXX9 1239 bool 1240 1241config IRQ_GT641XX 1242 bool 1243 1244config PCI_GT64XXX_PCI0 1245 bool 1246 1247config NO_EXCEPT_FILL 1248 bool 1249 1250config SOC_EMMA2RH 1251 bool 1252 select CEVT_R4K 1253 select CSRC_R4K 1254 select DMA_NONCOHERENT 1255 select IRQ_MIPS_CPU 1256 select SWAP_IO_SPACE 1257 select SYS_HAS_CPU_R5500 1258 select SYS_SUPPORTS_32BIT_KERNEL 1259 select SYS_SUPPORTS_64BIT_KERNEL 1260 select SYS_SUPPORTS_BIG_ENDIAN 1261 1262config SOC_PNX833X 1263 bool 1264 select CEVT_R4K 1265 select CSRC_R4K 1266 select IRQ_MIPS_CPU 1267 select DMA_NONCOHERENT 1268 select SYS_HAS_CPU_MIPS32_R2 1269 select SYS_SUPPORTS_32BIT_KERNEL 1270 select SYS_SUPPORTS_LITTLE_ENDIAN 1271 select SYS_SUPPORTS_BIG_ENDIAN 1272 select SYS_SUPPORTS_MIPS16 1273 select CPU_MIPSR2_IRQ_VI 1274 1275config SOC_PNX8335 1276 bool 1277 select SOC_PNX833X 1278 1279config MIPS_SPRAM 1280 bool 1281 1282config SWAP_IO_SPACE 1283 bool 1284 1285config SGI_HAS_INDYDOG 1286 bool 1287 1288config SGI_HAS_HAL2 1289 bool 1290 1291config SGI_HAS_SEEQ 1292 bool 1293 1294config SGI_HAS_WD93 1295 bool 1296 1297config SGI_HAS_ZILOG 1298 bool 1299 1300config SGI_HAS_I8042 1301 bool 1302 1303config DEFAULT_SGI_PARTITION 1304 bool 1305 1306config FW_ARC32 1307 bool 1308 1309config FW_SNIPROM 1310 bool 1311 1312config BOOT_ELF32 1313 bool 1314 1315config MIPS_L1_CACHE_SHIFT_4 1316 bool 1317 1318config MIPS_L1_CACHE_SHIFT_5 1319 bool 1320 1321config MIPS_L1_CACHE_SHIFT_6 1322 bool 1323 1324config MIPS_L1_CACHE_SHIFT_7 1325 bool 1326 1327config MIPS_L1_CACHE_SHIFT 1328 int 1329 default "7" if MIPS_L1_CACHE_SHIFT_7 1330 default "6" if MIPS_L1_CACHE_SHIFT_6 1331 default "5" if MIPS_L1_CACHE_SHIFT_5 1332 default "4" if MIPS_L1_CACHE_SHIFT_4 1333 default "5" 1334 1335config HAVE_STD_PC_SERIAL_PORT 1336 bool 1337 1338config ARC_CONSOLE 1339 bool "ARC console support" 1340 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1341 1342config ARC_MEMORY 1343 bool 1344 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1345 default y 1346 1347config ARC_PROMLIB 1348 bool 1349 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1350 default y 1351 1352config FW_ARC64 1353 bool 1354 1355config BOOT_ELF64 1356 bool 1357 1358menu "CPU selection" 1359 1360choice 1361 prompt "CPU type" 1362 default CPU_R4X00 1363 1364config CPU_LOONGSON3 1365 bool "Loongson 3 CPU" 1366 depends on SYS_HAS_CPU_LOONGSON3 1367 select ARCH_HAS_PHYS_TO_DMA 1368 select CPU_SUPPORTS_64BIT_KERNEL 1369 select CPU_SUPPORTS_HIGHMEM 1370 select CPU_SUPPORTS_HUGEPAGES 1371 select CPU_HAS_LOAD_STORE_LR 1372 select WEAK_ORDERING 1373 select WEAK_REORDERING_BEYOND_LLSC 1374 select MIPS_PGD_C0_CONTEXT 1375 select MIPS_L1_CACHE_SHIFT_6 1376 select GPIOLIB 1377 select SWIOTLB 1378 help 1379 The Loongson 3 processor implements the MIPS64R2 instruction 1380 set with many extensions. 1381 1382config LOONGSON3_ENHANCEMENT 1383 bool "New Loongson 3 CPU Enhancements" 1384 default n 1385 select CPU_MIPSR2 1386 select CPU_HAS_PREFETCH 1387 depends on CPU_LOONGSON3 1388 help 1389 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1390 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1391 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1392 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1393 Fast TLB refill support, etc. 1394 1395 This option enable those enhancements which are not probed at run 1396 time. If you want a generic kernel to run on all Loongson 3 machines, 1397 please say 'N' here. If you want a high-performance kernel to run on 1398 new Loongson 3 machines only, please say 'Y' here. 1399 1400config CPU_LOONGSON2E 1401 bool "Loongson 2E" 1402 depends on SYS_HAS_CPU_LOONGSON2E 1403 select CPU_LOONGSON2 1404 help 1405 The Loongson 2E processor implements the MIPS III instruction set 1406 with many extensions. 1407 1408 It has an internal FPGA northbridge, which is compatible to 1409 bonito64. 1410 1411config CPU_LOONGSON2F 1412 bool "Loongson 2F" 1413 depends on SYS_HAS_CPU_LOONGSON2F 1414 select CPU_LOONGSON2 1415 select GPIOLIB 1416 help 1417 The Loongson 2F processor implements the MIPS III instruction set 1418 with many extensions. 1419 1420 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1421 have a similar programming interface with FPGA northbridge used in 1422 Loongson2E. 1423 1424config CPU_LOONGSON1B 1425 bool "Loongson 1B" 1426 depends on SYS_HAS_CPU_LOONGSON1B 1427 select CPU_LOONGSON1 1428 select LEDS_GPIO_REGISTER 1429 help 1430 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1431 Release 1 instruction set and part of the MIPS32 Release 2 1432 instruction set. 1433 1434config CPU_LOONGSON1C 1435 bool "Loongson 1C" 1436 depends on SYS_HAS_CPU_LOONGSON1C 1437 select CPU_LOONGSON1 1438 select LEDS_GPIO_REGISTER 1439 help 1440 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1441 Release 1 instruction set and part of the MIPS32 Release 2 1442 instruction set. 1443 1444config CPU_MIPS32_R1 1445 bool "MIPS32 Release 1" 1446 depends on SYS_HAS_CPU_MIPS32_R1 1447 select CPU_HAS_PREFETCH 1448 select CPU_HAS_LOAD_STORE_LR 1449 select CPU_SUPPORTS_32BIT_KERNEL 1450 select CPU_SUPPORTS_HIGHMEM 1451 help 1452 Choose this option to build a kernel for release 1 or later of the 1453 MIPS32 architecture. Most modern embedded systems with a 32-bit 1454 MIPS processor are based on a MIPS32 processor. If you know the 1455 specific type of processor in your system, choose those that one 1456 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1457 Release 2 of the MIPS32 architecture is available since several 1458 years so chances are you even have a MIPS32 Release 2 processor 1459 in which case you should choose CPU_MIPS32_R2 instead for better 1460 performance. 1461 1462config CPU_MIPS32_R2 1463 bool "MIPS32 Release 2" 1464 depends on SYS_HAS_CPU_MIPS32_R2 1465 select CPU_HAS_PREFETCH 1466 select CPU_HAS_LOAD_STORE_LR 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 HAVE_KVM 1486 select MIPS_O32_FP64_SUPPORT 1487 help 1488 Choose this option to build a kernel for release 6 or later of the 1489 MIPS32 architecture. New MIPS processors, starting with the Warrior 1490 family, are based on a MIPS32r6 processor. If you own an older 1491 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1492 1493config CPU_MIPS64_R1 1494 bool "MIPS64 Release 1" 1495 depends on SYS_HAS_CPU_MIPS64_R1 1496 select CPU_HAS_PREFETCH 1497 select CPU_HAS_LOAD_STORE_LR 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_HAS_LOAD_STORE_LR 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select CPU_SUPPORTS_64BIT_KERNEL 1520 select CPU_SUPPORTS_HIGHMEM 1521 select CPU_SUPPORTS_HUGEPAGES 1522 select CPU_SUPPORTS_MSA 1523 select HAVE_KVM 1524 help 1525 Choose this option to build a kernel for release 2 or later of the 1526 MIPS64 architecture. Many modern embedded systems with a 64-bit 1527 MIPS processor are based on a MIPS64 processor. If you know the 1528 specific type of processor in your system, choose those that one 1529 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1530 1531config CPU_MIPS64_R6 1532 bool "MIPS64 Release 6" 1533 depends on SYS_HAS_CPU_MIPS64_R6 1534 select CPU_HAS_PREFETCH 1535 select CPU_SUPPORTS_32BIT_KERNEL 1536 select CPU_SUPPORTS_64BIT_KERNEL 1537 select CPU_SUPPORTS_HIGHMEM 1538 select CPU_SUPPORTS_MSA 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_HAS_LOAD_STORE_LR 1552 select CPU_SUPPORTS_32BIT_KERNEL 1553 select CPU_SUPPORTS_HIGHMEM 1554 help 1555 Please make sure to pick the right CPU type. Linux/MIPS is not 1556 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1557 *not* work on R4000 machines and vice versa. However, since most 1558 of the supported machines have an R4000 (or similar) CPU, R4x00 1559 might be a safe bet. If the resulting kernel does not work, 1560 try to recompile with R3000. 1561 1562config CPU_TX39XX 1563 bool "R39XX" 1564 depends on SYS_HAS_CPU_TX39XX 1565 select CPU_SUPPORTS_32BIT_KERNEL 1566 select CPU_HAS_LOAD_STORE_LR 1567 1568config CPU_VR41XX 1569 bool "R41xx" 1570 depends on SYS_HAS_CPU_VR41XX 1571 select CPU_SUPPORTS_32BIT_KERNEL 1572 select CPU_SUPPORTS_64BIT_KERNEL 1573 select CPU_HAS_LOAD_STORE_LR 1574 help 1575 The options selects support for the NEC VR4100 series of processors. 1576 Only choose this option if you have one of these processors as a 1577 kernel built with this option will not run on any other type of 1578 processor or vice versa. 1579 1580config CPU_R4300 1581 bool "R4300" 1582 depends on SYS_HAS_CPU_R4300 1583 select CPU_SUPPORTS_32BIT_KERNEL 1584 select CPU_SUPPORTS_64BIT_KERNEL 1585 select CPU_HAS_LOAD_STORE_LR 1586 help 1587 MIPS Technologies R4300-series processors. 1588 1589config CPU_R4X00 1590 bool "R4x00" 1591 depends on SYS_HAS_CPU_R4X00 1592 select CPU_SUPPORTS_32BIT_KERNEL 1593 select CPU_SUPPORTS_64BIT_KERNEL 1594 select CPU_SUPPORTS_HUGEPAGES 1595 select CPU_HAS_LOAD_STORE_LR 1596 help 1597 MIPS Technologies R4000-series processors other than 4300, including 1598 the R4000, R4400, R4600, and 4700. 1599 1600config CPU_TX49XX 1601 bool "R49XX" 1602 depends on SYS_HAS_CPU_TX49XX 1603 select CPU_HAS_PREFETCH 1604 select CPU_HAS_LOAD_STORE_LR 1605 select CPU_SUPPORTS_32BIT_KERNEL 1606 select CPU_SUPPORTS_64BIT_KERNEL 1607 select CPU_SUPPORTS_HUGEPAGES 1608 1609config CPU_R5000 1610 bool "R5000" 1611 depends on SYS_HAS_CPU_R5000 1612 select CPU_SUPPORTS_32BIT_KERNEL 1613 select CPU_SUPPORTS_64BIT_KERNEL 1614 select CPU_SUPPORTS_HUGEPAGES 1615 select CPU_HAS_LOAD_STORE_LR 1616 help 1617 MIPS Technologies R5000-series processors other than the Nevada. 1618 1619config CPU_R5432 1620 bool "R5432" 1621 depends on SYS_HAS_CPU_R5432 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 select CPU_SUPPORTS_64BIT_KERNEL 1624 select CPU_SUPPORTS_HUGEPAGES 1625 select CPU_HAS_LOAD_STORE_LR 1626 1627config CPU_R5500 1628 bool "R5500" 1629 depends on SYS_HAS_CPU_R5500 1630 select CPU_SUPPORTS_32BIT_KERNEL 1631 select CPU_SUPPORTS_64BIT_KERNEL 1632 select CPU_SUPPORTS_HUGEPAGES 1633 select CPU_HAS_LOAD_STORE_LR 1634 help 1635 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1636 instruction set. 1637 1638config CPU_NEVADA 1639 bool "RM52xx" 1640 depends on SYS_HAS_CPU_NEVADA 1641 select CPU_SUPPORTS_32BIT_KERNEL 1642 select CPU_SUPPORTS_64BIT_KERNEL 1643 select CPU_SUPPORTS_HUGEPAGES 1644 select CPU_HAS_LOAD_STORE_LR 1645 help 1646 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1647 1648config CPU_R8000 1649 bool "R8000" 1650 depends on SYS_HAS_CPU_R8000 1651 select CPU_HAS_PREFETCH 1652 select CPU_HAS_LOAD_STORE_LR 1653 select CPU_SUPPORTS_64BIT_KERNEL 1654 help 1655 MIPS Technologies R8000 processors. Note these processors are 1656 uncommon and the support for them is incomplete. 1657 1658config CPU_R10000 1659 bool "R10000" 1660 depends on SYS_HAS_CPU_R10000 1661 select CPU_HAS_PREFETCH 1662 select CPU_HAS_LOAD_STORE_LR 1663 select CPU_SUPPORTS_32BIT_KERNEL 1664 select CPU_SUPPORTS_64BIT_KERNEL 1665 select CPU_SUPPORTS_HIGHMEM 1666 select CPU_SUPPORTS_HUGEPAGES 1667 help 1668 MIPS Technologies R10000-series processors. 1669 1670config CPU_RM7000 1671 bool "RM7000" 1672 depends on SYS_HAS_CPU_RM7000 1673 select CPU_HAS_PREFETCH 1674 select CPU_HAS_LOAD_STORE_LR 1675 select CPU_SUPPORTS_32BIT_KERNEL 1676 select CPU_SUPPORTS_64BIT_KERNEL 1677 select CPU_SUPPORTS_HIGHMEM 1678 select CPU_SUPPORTS_HUGEPAGES 1679 1680config CPU_SB1 1681 bool "SB1" 1682 depends on SYS_HAS_CPU_SB1 1683 select CPU_HAS_LOAD_STORE_LR 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HIGHMEM 1687 select CPU_SUPPORTS_HUGEPAGES 1688 select WEAK_ORDERING 1689 1690config CPU_CAVIUM_OCTEON 1691 bool "Cavium Octeon processor" 1692 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1693 select CPU_HAS_PREFETCH 1694 select CPU_HAS_LOAD_STORE_LR 1695 select CPU_SUPPORTS_64BIT_KERNEL 1696 select WEAK_ORDERING 1697 select CPU_SUPPORTS_HIGHMEM 1698 select CPU_SUPPORTS_HUGEPAGES 1699 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1700 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1701 select MIPS_L1_CACHE_SHIFT_7 1702 select HAVE_KVM 1703 help 1704 The Cavium Octeon processor is a highly integrated chip containing 1705 many ethernet hardware widgets for networking tasks. The processor 1706 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1707 Full details can be found at http://www.caviumnetworks.com. 1708 1709config CPU_BMIPS 1710 bool "Broadcom BMIPS" 1711 depends on SYS_HAS_CPU_BMIPS 1712 select CPU_MIPS32 1713 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1714 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1715 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1716 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1717 select CPU_SUPPORTS_32BIT_KERNEL 1718 select DMA_NONCOHERENT 1719 select IRQ_MIPS_CPU 1720 select SWAP_IO_SPACE 1721 select WEAK_ORDERING 1722 select CPU_SUPPORTS_HIGHMEM 1723 select CPU_HAS_PREFETCH 1724 select CPU_HAS_LOAD_STORE_LR 1725 select CPU_SUPPORTS_CPUFREQ 1726 select MIPS_EXTERNAL_TIMER 1727 help 1728 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1729 1730config CPU_XLR 1731 bool "Netlogic XLR SoC" 1732 depends on SYS_HAS_CPU_XLR 1733 select CPU_HAS_LOAD_STORE_LR 1734 select CPU_SUPPORTS_32BIT_KERNEL 1735 select CPU_SUPPORTS_64BIT_KERNEL 1736 select CPU_SUPPORTS_HIGHMEM 1737 select CPU_SUPPORTS_HUGEPAGES 1738 select WEAK_ORDERING 1739 select WEAK_REORDERING_BEYOND_LLSC 1740 help 1741 Netlogic Microsystems XLR/XLS processors. 1742 1743config CPU_XLP 1744 bool "Netlogic XLP SoC" 1745 depends on SYS_HAS_CPU_XLP 1746 select CPU_SUPPORTS_32BIT_KERNEL 1747 select CPU_SUPPORTS_64BIT_KERNEL 1748 select CPU_SUPPORTS_HIGHMEM 1749 select WEAK_ORDERING 1750 select WEAK_REORDERING_BEYOND_LLSC 1751 select CPU_HAS_PREFETCH 1752 select CPU_HAS_LOAD_STORE_LR 1753 select CPU_MIPSR2 1754 select CPU_SUPPORTS_HUGEPAGES 1755 select MIPS_ASID_BITS_VARIABLE 1756 help 1757 Netlogic Microsystems XLP processors. 1758endchoice 1759 1760config CPU_MIPS32_3_5_FEATURES 1761 bool "MIPS32 Release 3.5 Features" 1762 depends on SYS_HAS_CPU_MIPS32_R3_5 1763 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1764 help 1765 Choose this option to build a kernel for release 2 or later of the 1766 MIPS32 architecture including features from the 3.5 release such as 1767 support for Enhanced Virtual Addressing (EVA). 1768 1769config CPU_MIPS32_3_5_EVA 1770 bool "Enhanced Virtual Addressing (EVA)" 1771 depends on CPU_MIPS32_3_5_FEATURES 1772 select EVA 1773 default y 1774 help 1775 Choose this option if you want to enable the Enhanced Virtual 1776 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1777 One of its primary benefits is an increase in the maximum size 1778 of lowmem (up to 3GB). If unsure, say 'N' here. 1779 1780config CPU_MIPS32_R5_FEATURES 1781 bool "MIPS32 Release 5 Features" 1782 depends on SYS_HAS_CPU_MIPS32_R5 1783 depends on CPU_MIPS32_R2 1784 help 1785 Choose this option to build a kernel for release 2 or later of the 1786 MIPS32 architecture including features from release 5 such as 1787 support for Extended Physical Addressing (XPA). 1788 1789config CPU_MIPS32_R5_XPA 1790 bool "Extended Physical Addressing (XPA)" 1791 depends on CPU_MIPS32_R5_FEATURES 1792 depends on !EVA 1793 depends on !PAGE_SIZE_4KB 1794 depends on SYS_SUPPORTS_HIGHMEM 1795 select XPA 1796 select HIGHMEM 1797 select PHYS_ADDR_T_64BIT 1798 default n 1799 help 1800 Choose this option if you want to enable the Extended Physical 1801 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1802 benefit is to increase physical addressing equal to or greater 1803 than 40 bits. Note that this has the side effect of turning on 1804 64-bit addressing which in turn makes the PTEs 64-bit in size. 1805 If unsure, say 'N' here. 1806 1807if CPU_LOONGSON2F 1808config CPU_NOP_WORKAROUNDS 1809 bool 1810 1811config CPU_JUMP_WORKAROUNDS 1812 bool 1813 1814config CPU_LOONGSON2F_WORKAROUNDS 1815 bool "Loongson 2F Workarounds" 1816 default y 1817 select CPU_NOP_WORKAROUNDS 1818 select CPU_JUMP_WORKAROUNDS 1819 help 1820 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1821 require workarounds. Without workarounds the system may hang 1822 unexpectedly. For more information please refer to the gas 1823 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1824 1825 Loongson 2F03 and later have fixed these issues and no workarounds 1826 are needed. The workarounds have no significant side effect on them 1827 but may decrease the performance of the system so this option should 1828 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1829 systems. 1830 1831 If unsure, please say Y. 1832endif # CPU_LOONGSON2F 1833 1834config SYS_SUPPORTS_ZBOOT 1835 bool 1836 select HAVE_KERNEL_GZIP 1837 select HAVE_KERNEL_BZIP2 1838 select HAVE_KERNEL_LZ4 1839 select HAVE_KERNEL_LZMA 1840 select HAVE_KERNEL_LZO 1841 select HAVE_KERNEL_XZ 1842 1843config SYS_SUPPORTS_ZBOOT_UART16550 1844 bool 1845 select SYS_SUPPORTS_ZBOOT 1846 1847config SYS_SUPPORTS_ZBOOT_UART_PROM 1848 bool 1849 select SYS_SUPPORTS_ZBOOT 1850 1851config CPU_LOONGSON2 1852 bool 1853 select CPU_SUPPORTS_32BIT_KERNEL 1854 select CPU_SUPPORTS_64BIT_KERNEL 1855 select CPU_SUPPORTS_HIGHMEM 1856 select CPU_SUPPORTS_HUGEPAGES 1857 select ARCH_HAS_PHYS_TO_DMA 1858 select CPU_HAS_LOAD_STORE_LR 1859 1860config CPU_LOONGSON1 1861 bool 1862 select CPU_MIPS32 1863 select CPU_MIPSR1 1864 select CPU_HAS_PREFETCH 1865 select CPU_HAS_LOAD_STORE_LR 1866 select CPU_SUPPORTS_32BIT_KERNEL 1867 select CPU_SUPPORTS_HIGHMEM 1868 select CPU_SUPPORTS_CPUFREQ 1869 1870config CPU_BMIPS32_3300 1871 select SMP_UP if SMP 1872 bool 1873 1874config CPU_BMIPS4350 1875 bool 1876 select SYS_SUPPORTS_SMP 1877 select SYS_SUPPORTS_HOTPLUG_CPU 1878 1879config CPU_BMIPS4380 1880 bool 1881 select MIPS_L1_CACHE_SHIFT_6 1882 select SYS_SUPPORTS_SMP 1883 select SYS_SUPPORTS_HOTPLUG_CPU 1884 select CPU_HAS_RIXI 1885 1886config CPU_BMIPS5000 1887 bool 1888 select MIPS_CPU_SCACHE 1889 select MIPS_L1_CACHE_SHIFT_7 1890 select SYS_SUPPORTS_SMP 1891 select SYS_SUPPORTS_HOTPLUG_CPU 1892 select CPU_HAS_RIXI 1893 1894config SYS_HAS_CPU_LOONGSON3 1895 bool 1896 select CPU_SUPPORTS_CPUFREQ 1897 select CPU_HAS_RIXI 1898 1899config SYS_HAS_CPU_LOONGSON2E 1900 bool 1901 1902config SYS_HAS_CPU_LOONGSON2F 1903 bool 1904 select CPU_SUPPORTS_CPUFREQ 1905 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1906 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1907 1908config SYS_HAS_CPU_LOONGSON1B 1909 bool 1910 1911config SYS_HAS_CPU_LOONGSON1C 1912 bool 1913 1914config SYS_HAS_CPU_MIPS32_R1 1915 bool 1916 1917config SYS_HAS_CPU_MIPS32_R2 1918 bool 1919 1920config SYS_HAS_CPU_MIPS32_R3_5 1921 bool 1922 1923config SYS_HAS_CPU_MIPS32_R5 1924 bool 1925 1926config SYS_HAS_CPU_MIPS32_R6 1927 bool 1928 1929config SYS_HAS_CPU_MIPS64_R1 1930 bool 1931 1932config SYS_HAS_CPU_MIPS64_R2 1933 bool 1934 1935config SYS_HAS_CPU_MIPS64_R6 1936 bool 1937 1938config SYS_HAS_CPU_R3000 1939 bool 1940 1941config SYS_HAS_CPU_TX39XX 1942 bool 1943 1944config SYS_HAS_CPU_VR41XX 1945 bool 1946 1947config SYS_HAS_CPU_R4300 1948 bool 1949 1950config SYS_HAS_CPU_R4X00 1951 bool 1952 1953config SYS_HAS_CPU_TX49XX 1954 bool 1955 1956config SYS_HAS_CPU_R5000 1957 bool 1958 1959config SYS_HAS_CPU_R5432 1960 bool 1961 1962config SYS_HAS_CPU_R5500 1963 bool 1964 1965config SYS_HAS_CPU_NEVADA 1966 bool 1967 1968config SYS_HAS_CPU_R8000 1969 bool 1970 1971config SYS_HAS_CPU_R10000 1972 bool 1973 1974config SYS_HAS_CPU_RM7000 1975 bool 1976 1977config SYS_HAS_CPU_SB1 1978 bool 1979 1980config SYS_HAS_CPU_CAVIUM_OCTEON 1981 bool 1982 1983config SYS_HAS_CPU_BMIPS 1984 bool 1985 1986config SYS_HAS_CPU_BMIPS32_3300 1987 bool 1988 select SYS_HAS_CPU_BMIPS 1989 1990config SYS_HAS_CPU_BMIPS4350 1991 bool 1992 select SYS_HAS_CPU_BMIPS 1993 1994config SYS_HAS_CPU_BMIPS4380 1995 bool 1996 select SYS_HAS_CPU_BMIPS 1997 1998config SYS_HAS_CPU_BMIPS5000 1999 bool 2000 select SYS_HAS_CPU_BMIPS 2001 2002config SYS_HAS_CPU_XLR 2003 bool 2004 2005config SYS_HAS_CPU_XLP 2006 bool 2007 2008# 2009# CPU may reorder R->R, R->W, W->R, W->W 2010# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2011# 2012config WEAK_ORDERING 2013 bool 2014 2015# 2016# CPU may reorder reads and writes beyond LL/SC 2017# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2018# 2019config WEAK_REORDERING_BEYOND_LLSC 2020 bool 2021endmenu 2022 2023# 2024# These two indicate any level of the MIPS32 and MIPS64 architecture 2025# 2026config CPU_MIPS32 2027 bool 2028 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2029 2030config CPU_MIPS64 2031 bool 2032 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2033 2034# 2035# These two indicate the revision of the architecture, either Release 1 or Release 2 2036# 2037config CPU_MIPSR1 2038 bool 2039 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2040 2041config CPU_MIPSR2 2042 bool 2043 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2044 select CPU_HAS_RIXI 2045 select MIPS_SPRAM 2046 2047config CPU_MIPSR6 2048 bool 2049 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2050 select CPU_HAS_RIXI 2051 select HAVE_ARCH_BITREVERSE 2052 select MIPS_ASID_BITS_VARIABLE 2053 select MIPS_CRC_SUPPORT 2054 select MIPS_SPRAM 2055 2056config EVA 2057 bool 2058 2059config XPA 2060 bool 2061 2062config SYS_SUPPORTS_32BIT_KERNEL 2063 bool 2064config SYS_SUPPORTS_64BIT_KERNEL 2065 bool 2066config CPU_SUPPORTS_32BIT_KERNEL 2067 bool 2068config CPU_SUPPORTS_64BIT_KERNEL 2069 bool 2070config CPU_SUPPORTS_CPUFREQ 2071 bool 2072config CPU_SUPPORTS_ADDRWINCFG 2073 bool 2074config CPU_SUPPORTS_HUGEPAGES 2075 bool 2076config CPU_SUPPORTS_UNCACHED_ACCELERATED 2077 bool 2078config MIPS_PGD_C0_CONTEXT 2079 bool 2080 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2081 2082# 2083# Set to y for ptrace access to watch registers. 2084# 2085config HARDWARE_WATCHPOINTS 2086 bool 2087 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2088 2089menu "Kernel type" 2090 2091choice 2092 prompt "Kernel code model" 2093 help 2094 You should only select this option if you have a workload that 2095 actually benefits from 64-bit processing or if your machine has 2096 large memory. You will only be presented a single option in this 2097 menu if your system does not support both 32-bit and 64-bit kernels. 2098 2099config 32BIT 2100 bool "32-bit kernel" 2101 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2102 select TRAD_SIGNALS 2103 help 2104 Select this option if you want to build a 32-bit kernel. 2105 2106config 64BIT 2107 bool "64-bit kernel" 2108 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2109 help 2110 Select this option if you want to build a 64-bit kernel. 2111 2112endchoice 2113 2114config KVM_GUEST 2115 bool "KVM Guest Kernel" 2116 depends on BROKEN_ON_SMP 2117 help 2118 Select this option if building a guest kernel for KVM (Trap & Emulate) 2119 mode. 2120 2121config KVM_GUEST_TIMER_FREQ 2122 int "Count/Compare Timer Frequency (MHz)" 2123 depends on KVM_GUEST 2124 default 100 2125 help 2126 Set this to non-zero if building a guest kernel for KVM to skip RTC 2127 emulation when determining guest CPU Frequency. Instead, the guest's 2128 timer frequency is specified directly. 2129 2130config MIPS_VA_BITS_48 2131 bool "48 bits virtual memory" 2132 depends on 64BIT 2133 help 2134 Support a maximum at least 48 bits of application virtual 2135 memory. Default is 40 bits or less, depending on the CPU. 2136 For page sizes 16k and above, this option results in a small 2137 memory overhead for page tables. For 4k page size, a fourth 2138 level of page tables is added which imposes both a memory 2139 overhead as well as slower TLB fault handling. 2140 2141 If unsure, say N. 2142 2143choice 2144 prompt "Kernel page size" 2145 default PAGE_SIZE_4KB 2146 2147config PAGE_SIZE_4KB 2148 bool "4kB" 2149 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2150 help 2151 This option select the standard 4kB Linux page size. On some 2152 R3000-family processors this is the only available page size. Using 2153 4kB page size will minimize memory consumption and is therefore 2154 recommended for low memory systems. 2155 2156config PAGE_SIZE_8KB 2157 bool "8kB" 2158 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2159 depends on !MIPS_VA_BITS_48 2160 help 2161 Using 8kB page size will result in higher performance kernel at 2162 the price of higher memory consumption. This option is available 2163 only on R8000 and cnMIPS processors. Note that you will need a 2164 suitable Linux distribution to support this. 2165 2166config PAGE_SIZE_16KB 2167 bool "16kB" 2168 depends on !CPU_R3000 && !CPU_TX39XX 2169 help 2170 Using 16kB page size will result in higher performance kernel at 2171 the price of higher memory consumption. This option is available on 2172 all non-R3000 family processors. Note that you will need a suitable 2173 Linux distribution to support this. 2174 2175config PAGE_SIZE_32KB 2176 bool "32kB" 2177 depends on CPU_CAVIUM_OCTEON 2178 depends on !MIPS_VA_BITS_48 2179 help 2180 Using 32kB page size will result in higher performance kernel at 2181 the price of higher memory consumption. This option is available 2182 only on cnMIPS cores. Note that you will need a suitable Linux 2183 distribution to support this. 2184 2185config PAGE_SIZE_64KB 2186 bool "64kB" 2187 depends on !CPU_R3000 && !CPU_TX39XX 2188 help 2189 Using 64kB page size will result in higher performance kernel at 2190 the price of higher memory consumption. This option is available on 2191 all non-R3000 family processor. Not that at the time of this 2192 writing this option is still high experimental. 2193 2194endchoice 2195 2196config FORCE_MAX_ZONEORDER 2197 int "Maximum zone order" 2198 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2199 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2200 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2201 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2202 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2203 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2204 range 11 64 2205 default "11" 2206 help 2207 The kernel memory allocator divides physically contiguous memory 2208 blocks into "zones", where each zone is a power of two number of 2209 pages. This option selects the largest power of two that the kernel 2210 keeps in the memory allocator. If you need to allocate very large 2211 blocks of physically contiguous memory, then you may need to 2212 increase this value. 2213 2214 This config option is actually maximum order plus one. For example, 2215 a value of 11 means that the largest free memory block is 2^10 pages. 2216 2217 The page size is not necessarily 4KB. Keep this in mind 2218 when choosing a value for this option. 2219 2220config BOARD_SCACHE 2221 bool 2222 2223config IP22_CPU_SCACHE 2224 bool 2225 select BOARD_SCACHE 2226 2227# 2228# Support for a MIPS32 / MIPS64 style S-caches 2229# 2230config MIPS_CPU_SCACHE 2231 bool 2232 select BOARD_SCACHE 2233 2234config R5000_CPU_SCACHE 2235 bool 2236 select BOARD_SCACHE 2237 2238config RM7000_CPU_SCACHE 2239 bool 2240 select BOARD_SCACHE 2241 2242config SIBYTE_DMA_PAGEOPS 2243 bool "Use DMA to clear/copy pages" 2244 depends on CPU_SB1 2245 help 2246 Instead of using the CPU to zero and copy pages, use a Data Mover 2247 channel. These DMA channels are otherwise unused by the standard 2248 SiByte Linux port. Seems to give a small performance benefit. 2249 2250config CPU_HAS_PREFETCH 2251 bool 2252 2253config CPU_GENERIC_DUMP_TLB 2254 bool 2255 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2256 2257config CPU_R4K_FPU 2258 bool 2259 default y if !(CPU_R3000 || CPU_TX39XX) 2260 2261config CPU_R4K_CACHE_TLB 2262 bool 2263 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2264 2265config MIPS_MT_SMP 2266 bool "MIPS MT SMP support (1 TC on each available VPE)" 2267 default y 2268 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2269 select CPU_MIPSR2_IRQ_VI 2270 select CPU_MIPSR2_IRQ_EI 2271 select SYNC_R4K 2272 select MIPS_MT 2273 select SMP 2274 select SMP_UP 2275 select SYS_SUPPORTS_SMP 2276 select SYS_SUPPORTS_SCHED_SMT 2277 select MIPS_PERF_SHARED_TC_COUNTERS 2278 help 2279 This is a kernel model which is known as SMVP. This is supported 2280 on cores with the MT ASE and uses the available VPEs to implement 2281 virtual processors which supports SMP. This is equivalent to the 2282 Intel Hyperthreading feature. For further information go to 2283 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2284 2285config MIPS_MT 2286 bool 2287 2288config SCHED_SMT 2289 bool "SMT (multithreading) scheduler support" 2290 depends on SYS_SUPPORTS_SCHED_SMT 2291 default n 2292 help 2293 SMT scheduler support improves the CPU scheduler's decision making 2294 when dealing with MIPS MT enabled cores at a cost of slightly 2295 increased overhead in some places. If unsure say N here. 2296 2297config SYS_SUPPORTS_SCHED_SMT 2298 bool 2299 2300config SYS_SUPPORTS_MULTITHREADING 2301 bool 2302 2303config MIPS_MT_FPAFF 2304 bool "Dynamic FPU affinity for FP-intensive threads" 2305 default y 2306 depends on MIPS_MT_SMP 2307 2308config MIPSR2_TO_R6_EMULATOR 2309 bool "MIPS R2-to-R6 emulator" 2310 depends on CPU_MIPSR6 2311 default y 2312 help 2313 Choose this option if you want to run non-R6 MIPS userland code. 2314 Even if you say 'Y' here, the emulator will still be disabled by 2315 default. You can enable it using the 'mipsr2emu' kernel option. 2316 The only reason this is a build-time option is to save ~14K from the 2317 final kernel image. 2318 2319config SYS_SUPPORTS_VPE_LOADER 2320 bool 2321 depends on SYS_SUPPORTS_MULTITHREADING 2322 help 2323 Indicates that the platform supports the VPE loader, and provides 2324 physical_memsize. 2325 2326config MIPS_VPE_LOADER 2327 bool "VPE loader support." 2328 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2329 select CPU_MIPSR2_IRQ_VI 2330 select CPU_MIPSR2_IRQ_EI 2331 select MIPS_MT 2332 help 2333 Includes a loader for loading an elf relocatable object 2334 onto another VPE and running it. 2335 2336config MIPS_VPE_LOADER_CMP 2337 bool 2338 default "y" 2339 depends on MIPS_VPE_LOADER && MIPS_CMP 2340 2341config MIPS_VPE_LOADER_MT 2342 bool 2343 default "y" 2344 depends on MIPS_VPE_LOADER && !MIPS_CMP 2345 2346config MIPS_VPE_LOADER_TOM 2347 bool "Load VPE program into memory hidden from linux" 2348 depends on MIPS_VPE_LOADER 2349 default y 2350 help 2351 The loader can use memory that is present but has been hidden from 2352 Linux using the kernel command line option "mem=xxMB". It's up to 2353 you to ensure the amount you put in the option and the space your 2354 program requires is less or equal to the amount physically present. 2355 2356config MIPS_VPE_APSP_API 2357 bool "Enable support for AP/SP API (RTLX)" 2358 depends on MIPS_VPE_LOADER 2359 2360config MIPS_VPE_APSP_API_CMP 2361 bool 2362 default "y" 2363 depends on MIPS_VPE_APSP_API && MIPS_CMP 2364 2365config MIPS_VPE_APSP_API_MT 2366 bool 2367 default "y" 2368 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2369 2370config MIPS_CMP 2371 bool "MIPS CMP framework support (DEPRECATED)" 2372 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2373 select SMP 2374 select SYNC_R4K 2375 select SYS_SUPPORTS_SMP 2376 select WEAK_ORDERING 2377 default n 2378 help 2379 Select this if you are using a bootloader which implements the "CMP 2380 framework" protocol (ie. YAMON) and want your kernel to make use of 2381 its ability to start secondary CPUs. 2382 2383 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2384 instead of this. 2385 2386config MIPS_CPS 2387 bool "MIPS Coherent Processing System support" 2388 depends on SYS_SUPPORTS_MIPS_CPS 2389 select MIPS_CM 2390 select MIPS_CPS_PM if HOTPLUG_CPU 2391 select SMP 2392 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2393 select SYS_SUPPORTS_HOTPLUG_CPU 2394 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2395 select SYS_SUPPORTS_SMP 2396 select WEAK_ORDERING 2397 help 2398 Select this if you wish to run an SMP kernel across multiple cores 2399 within a MIPS Coherent Processing System. When this option is 2400 enabled the kernel will probe for other cores and boot them with 2401 no external assistance. It is safe to enable this when hardware 2402 support is unavailable. 2403 2404config MIPS_CPS_PM 2405 depends on MIPS_CPS 2406 bool 2407 2408config MIPS_CM 2409 bool 2410 select MIPS_CPC 2411 2412config MIPS_CPC 2413 bool 2414 2415config SB1_PASS_2_WORKAROUNDS 2416 bool 2417 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2418 default y 2419 2420config SB1_PASS_2_1_WORKAROUNDS 2421 bool 2422 depends on CPU_SB1 && CPU_SB1_PASS_2 2423 default y 2424 2425 2426choice 2427 prompt "SmartMIPS or microMIPS ASE support" 2428 2429config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2430 bool "None" 2431 help 2432 Select this if you want neither microMIPS nor SmartMIPS support 2433 2434config CPU_HAS_SMARTMIPS 2435 depends on SYS_SUPPORTS_SMARTMIPS 2436 bool "SmartMIPS" 2437 help 2438 SmartMIPS is a extension of the MIPS32 architecture aimed at 2439 increased security at both hardware and software level for 2440 smartcards. Enabling this option will allow proper use of the 2441 SmartMIPS instructions by Linux applications. However a kernel with 2442 this option will not work on a MIPS core without SmartMIPS core. If 2443 you don't know you probably don't have SmartMIPS and should say N 2444 here. 2445 2446config CPU_MICROMIPS 2447 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2448 bool "microMIPS" 2449 help 2450 When this option is enabled the kernel will be built using the 2451 microMIPS ISA 2452 2453endchoice 2454 2455config CPU_HAS_MSA 2456 bool "Support for the MIPS SIMD Architecture" 2457 depends on CPU_SUPPORTS_MSA 2458 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2459 help 2460 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2461 and a set of SIMD instructions to operate on them. When this option 2462 is enabled the kernel will support allocating & switching MSA 2463 vector register contexts. If you know that your kernel will only be 2464 running on CPUs which do not support MSA or that your userland will 2465 not be making use of it then you may wish to say N here to reduce 2466 the size & complexity of your kernel. 2467 2468 If unsure, say Y. 2469 2470config CPU_HAS_WB 2471 bool 2472 2473config XKS01 2474 bool 2475 2476config CPU_HAS_RIXI 2477 bool 2478 2479config CPU_HAS_LOAD_STORE_LR 2480 bool 2481 help 2482 CPU has support for unaligned load and store instructions: 2483 LWL, LWR, SWL, SWR (Load/store word left/right). 2484 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2485 2486# 2487# Vectored interrupt mode is an R2 feature 2488# 2489config CPU_MIPSR2_IRQ_VI 2490 bool 2491 2492# 2493# Extended interrupt mode is an R2 feature 2494# 2495config CPU_MIPSR2_IRQ_EI 2496 bool 2497 2498config CPU_HAS_SYNC 2499 bool 2500 depends on !CPU_R3000 2501 default y 2502 2503# 2504# CPU non-features 2505# 2506config CPU_DADDI_WORKAROUNDS 2507 bool 2508 2509config CPU_R4000_WORKAROUNDS 2510 bool 2511 select CPU_R4400_WORKAROUNDS 2512 2513config CPU_R4400_WORKAROUNDS 2514 bool 2515 2516config MIPS_ASID_SHIFT 2517 int 2518 default 6 if CPU_R3000 || CPU_TX39XX 2519 default 4 if CPU_R8000 2520 default 0 2521 2522config MIPS_ASID_BITS 2523 int 2524 default 0 if MIPS_ASID_BITS_VARIABLE 2525 default 6 if CPU_R3000 || CPU_TX39XX 2526 default 8 2527 2528config MIPS_ASID_BITS_VARIABLE 2529 bool 2530 2531config MIPS_CRC_SUPPORT 2532 bool 2533 2534# 2535# - Highmem only makes sense for the 32-bit kernel. 2536# - The current highmem code will only work properly on physically indexed 2537# caches such as R3000, SB1, R7000 or those that look like they're virtually 2538# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2539# moment we protect the user and offer the highmem option only on machines 2540# where it's known to be safe. This will not offer highmem on a few systems 2541# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2542# indexed CPUs but we're playing safe. 2543# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2544# know they might have memory configurations that could make use of highmem 2545# support. 2546# 2547config HIGHMEM 2548 bool "High Memory Support" 2549 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2550 2551config CPU_SUPPORTS_HIGHMEM 2552 bool 2553 2554config SYS_SUPPORTS_HIGHMEM 2555 bool 2556 2557config SYS_SUPPORTS_SMARTMIPS 2558 bool 2559 2560config SYS_SUPPORTS_MICROMIPS 2561 bool 2562 2563config SYS_SUPPORTS_MIPS16 2564 bool 2565 help 2566 This option must be set if a kernel might be executed on a MIPS16- 2567 enabled CPU even if MIPS16 is not actually being used. In other 2568 words, it makes the kernel MIPS16-tolerant. 2569 2570config CPU_SUPPORTS_MSA 2571 bool 2572 2573config ARCH_FLATMEM_ENABLE 2574 def_bool y 2575 depends on !NUMA && !CPU_LOONGSON2 2576 2577config ARCH_DISCONTIGMEM_ENABLE 2578 bool 2579 default y if SGI_IP27 2580 help 2581 Say Y to support efficient handling of discontiguous physical memory, 2582 for architectures which are either NUMA (Non-Uniform Memory Access) 2583 or have huge holes in the physical address space for other reasons. 2584 See <file:Documentation/vm/numa.rst> for more. 2585 2586config ARCH_SPARSEMEM_ENABLE 2587 bool 2588 select SPARSEMEM_STATIC 2589 2590config NUMA 2591 bool "NUMA Support" 2592 depends on SYS_SUPPORTS_NUMA 2593 help 2594 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2595 Access). This option improves performance on systems with more 2596 than two nodes; on two node systems it is generally better to 2597 leave it disabled; on single node systems disable this option 2598 disabled. 2599 2600config SYS_SUPPORTS_NUMA 2601 bool 2602 2603config RELOCATABLE 2604 bool "Relocatable kernel" 2605 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2606 help 2607 This builds a kernel image that retains relocation information 2608 so it can be loaded someplace besides the default 1MB. 2609 The relocations make the kernel binary about 15% larger, 2610 but are discarded at runtime 2611 2612config RELOCATION_TABLE_SIZE 2613 hex "Relocation table size" 2614 depends on RELOCATABLE 2615 range 0x0 0x01000000 2616 default "0x00100000" 2617 ---help--- 2618 A table of relocation data will be appended to the kernel binary 2619 and parsed at boot to fix up the relocated kernel. 2620 2621 This option allows the amount of space reserved for the table to be 2622 adjusted, although the default of 1Mb should be ok in most cases. 2623 2624 The build will fail and a valid size suggested if this is too small. 2625 2626 If unsure, leave at the default value. 2627 2628config RANDOMIZE_BASE 2629 bool "Randomize the address of the kernel image" 2630 depends on RELOCATABLE 2631 ---help--- 2632 Randomizes the physical and virtual address at which the 2633 kernel image is loaded, as a security feature that 2634 deters exploit attempts relying on knowledge of the location 2635 of kernel internals. 2636 2637 Entropy is generated using any coprocessor 0 registers available. 2638 2639 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2640 2641 If unsure, say N. 2642 2643config RANDOMIZE_BASE_MAX_OFFSET 2644 hex "Maximum kASLR offset" if EXPERT 2645 depends on RANDOMIZE_BASE 2646 range 0x0 0x40000000 if EVA || 64BIT 2647 range 0x0 0x08000000 2648 default "0x01000000" 2649 ---help--- 2650 When kASLR is active, this provides the maximum offset that will 2651 be applied to the kernel image. It should be set according to the 2652 amount of physical RAM available in the target system minus 2653 PHYSICAL_START and must be a power of 2. 2654 2655 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2656 EVA or 64-bit. The default is 16Mb. 2657 2658config NODES_SHIFT 2659 int 2660 default "6" 2661 depends on NEED_MULTIPLE_NODES 2662 2663config HW_PERF_EVENTS 2664 bool "Enable hardware performance counter support for perf events" 2665 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2666 default y 2667 help 2668 Enable hardware performance counter support for perf events. If 2669 disabled, perf events will use software events only. 2670 2671config SMP 2672 bool "Multi-Processing support" 2673 depends on SYS_SUPPORTS_SMP 2674 help 2675 This enables support for systems with more than one CPU. If you have 2676 a system with only one CPU, say N. If you have a system with more 2677 than one CPU, say Y. 2678 2679 If you say N here, the kernel will run on uni- and multiprocessor 2680 machines, but will use only one CPU of a multiprocessor machine. If 2681 you say Y here, the kernel will run on many, but not all, 2682 uniprocessor machines. On a uniprocessor machine, the kernel 2683 will run faster if you say N here. 2684 2685 People using multiprocessor machines who say Y here should also say 2686 Y to "Enhanced Real Time Clock Support", below. 2687 2688 See also the SMP-HOWTO available at 2689 <http://www.tldp.org/docs.html#howto>. 2690 2691 If you don't know what to do here, say N. 2692 2693config HOTPLUG_CPU 2694 bool "Support for hot-pluggable CPUs" 2695 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2696 help 2697 Say Y here to allow turning CPUs off and on. CPUs can be 2698 controlled through /sys/devices/system/cpu. 2699 (Note: power management support will enable this option 2700 automatically on SMP systems. ) 2701 Say N if you want to disable CPU hotplug. 2702 2703config SMP_UP 2704 bool 2705 2706config SYS_SUPPORTS_MIPS_CMP 2707 bool 2708 2709config SYS_SUPPORTS_MIPS_CPS 2710 bool 2711 2712config SYS_SUPPORTS_SMP 2713 bool 2714 2715config NR_CPUS_DEFAULT_4 2716 bool 2717 2718config NR_CPUS_DEFAULT_8 2719 bool 2720 2721config NR_CPUS_DEFAULT_16 2722 bool 2723 2724config NR_CPUS_DEFAULT_32 2725 bool 2726 2727config NR_CPUS_DEFAULT_64 2728 bool 2729 2730config NR_CPUS 2731 int "Maximum number of CPUs (2-256)" 2732 range 2 256 2733 depends on SMP 2734 default "4" if NR_CPUS_DEFAULT_4 2735 default "8" if NR_CPUS_DEFAULT_8 2736 default "16" if NR_CPUS_DEFAULT_16 2737 default "32" if NR_CPUS_DEFAULT_32 2738 default "64" if NR_CPUS_DEFAULT_64 2739 help 2740 This allows you to specify the maximum number of CPUs which this 2741 kernel will support. The maximum supported value is 32 for 32-bit 2742 kernel and 64 for 64-bit kernels; the minimum value which makes 2743 sense is 1 for Qemu (useful only for kernel debugging purposes) 2744 and 2 for all others. 2745 2746 This is purely to save memory - each supported CPU adds 2747 approximately eight kilobytes to the kernel image. For best 2748 performance should round up your number of processors to the next 2749 power of two. 2750 2751config MIPS_PERF_SHARED_TC_COUNTERS 2752 bool 2753 2754config MIPS_NR_CPU_NR_MAP_1024 2755 bool 2756 2757config MIPS_NR_CPU_NR_MAP 2758 int 2759 depends on SMP 2760 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2761 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2762 2763# 2764# Timer Interrupt Frequency Configuration 2765# 2766 2767choice 2768 prompt "Timer frequency" 2769 default HZ_250 2770 help 2771 Allows the configuration of the timer frequency. 2772 2773 config HZ_24 2774 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2775 2776 config HZ_48 2777 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2778 2779 config HZ_100 2780 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2781 2782 config HZ_128 2783 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2784 2785 config HZ_250 2786 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2787 2788 config HZ_256 2789 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2790 2791 config HZ_1000 2792 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2793 2794 config HZ_1024 2795 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2796 2797endchoice 2798 2799config SYS_SUPPORTS_24HZ 2800 bool 2801 2802config SYS_SUPPORTS_48HZ 2803 bool 2804 2805config SYS_SUPPORTS_100HZ 2806 bool 2807 2808config SYS_SUPPORTS_128HZ 2809 bool 2810 2811config SYS_SUPPORTS_250HZ 2812 bool 2813 2814config SYS_SUPPORTS_256HZ 2815 bool 2816 2817config SYS_SUPPORTS_1000HZ 2818 bool 2819 2820config SYS_SUPPORTS_1024HZ 2821 bool 2822 2823config SYS_SUPPORTS_ARBIT_HZ 2824 bool 2825 default y if !SYS_SUPPORTS_24HZ && \ 2826 !SYS_SUPPORTS_48HZ && \ 2827 !SYS_SUPPORTS_100HZ && \ 2828 !SYS_SUPPORTS_128HZ && \ 2829 !SYS_SUPPORTS_250HZ && \ 2830 !SYS_SUPPORTS_256HZ && \ 2831 !SYS_SUPPORTS_1000HZ && \ 2832 !SYS_SUPPORTS_1024HZ 2833 2834config HZ 2835 int 2836 default 24 if HZ_24 2837 default 48 if HZ_48 2838 default 100 if HZ_100 2839 default 128 if HZ_128 2840 default 250 if HZ_250 2841 default 256 if HZ_256 2842 default 1000 if HZ_1000 2843 default 1024 if HZ_1024 2844 2845config SCHED_HRTICK 2846 def_bool HIGH_RES_TIMERS 2847 2848config KEXEC 2849 bool "Kexec system call" 2850 select KEXEC_CORE 2851 help 2852 kexec is a system call that implements the ability to shutdown your 2853 current kernel, and to start another kernel. It is like a reboot 2854 but it is independent of the system firmware. And like a reboot 2855 you can start any kernel with it, not just Linux. 2856 2857 The name comes from the similarity to the exec system call. 2858 2859 It is an ongoing process to be certain the hardware in a machine 2860 is properly shutdown, so do not be surprised if this code does not 2861 initially work for you. As of this writing the exact hardware 2862 interface is strongly in flux, so no good recommendation can be 2863 made. 2864 2865config CRASH_DUMP 2866 bool "Kernel crash dumps" 2867 help 2868 Generate crash dump after being started by kexec. 2869 This should be normally only set in special crash dump kernels 2870 which are loaded in the main kernel with kexec-tools into 2871 a specially reserved region and then later executed after 2872 a crash by kdump/kexec. The crash dump kernel must be compiled 2873 to a memory address not used by the main kernel or firmware using 2874 PHYSICAL_START. 2875 2876config PHYSICAL_START 2877 hex "Physical address where the kernel is loaded" 2878 default "0xffffffff84000000" 2879 depends on CRASH_DUMP 2880 help 2881 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2882 If you plan to use kernel for capturing the crash dump change 2883 this value to start of the reserved region (the "X" value as 2884 specified in the "crashkernel=YM@XM" command line boot parameter 2885 passed to the panic-ed kernel). 2886 2887config SECCOMP 2888 bool "Enable seccomp to safely compute untrusted bytecode" 2889 depends on PROC_FS 2890 default y 2891 help 2892 This kernel feature is useful for number crunching applications 2893 that may need to compute untrusted bytecode during their 2894 execution. By using pipes or other transports made available to 2895 the process as file descriptors supporting the read/write 2896 syscalls, it's possible to isolate those applications in 2897 their own address space using seccomp. Once seccomp is 2898 enabled via /proc/<pid>/seccomp, it cannot be disabled 2899 and the task is only allowed to execute a few safe syscalls 2900 defined by each seccomp mode. 2901 2902 If unsure, say Y. Only embedded should say N here. 2903 2904config MIPS_O32_FP64_SUPPORT 2905 bool "Support for O32 binaries using 64-bit FP" 2906 depends on 32BIT || MIPS32_O32 2907 help 2908 When this is enabled, the kernel will support use of 64-bit floating 2909 point registers with binaries using the O32 ABI along with the 2910 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2911 32-bit MIPS systems this support is at the cost of increasing the 2912 size and complexity of the compiled FPU emulator. Thus if you are 2913 running a MIPS32 system and know that none of your userland binaries 2914 will require 64-bit floating point, you may wish to reduce the size 2915 of your kernel & potentially improve FP emulation performance by 2916 saying N here. 2917 2918 Although binutils currently supports use of this flag the details 2919 concerning its effect upon the O32 ABI in userland are still being 2920 worked on. In order to avoid userland becoming dependant upon current 2921 behaviour before the details have been finalised, this option should 2922 be considered experimental and only enabled by those working upon 2923 said details. 2924 2925 If unsure, say N. 2926 2927config USE_OF 2928 bool 2929 select OF 2930 select OF_EARLY_FLATTREE 2931 select IRQ_DOMAIN 2932 2933config UHI_BOOT 2934 bool 2935 2936config BUILTIN_DTB 2937 bool 2938 2939choice 2940 prompt "Kernel appended dtb support" if USE_OF 2941 default MIPS_NO_APPENDED_DTB 2942 2943 config MIPS_NO_APPENDED_DTB 2944 bool "None" 2945 help 2946 Do not enable appended dtb support. 2947 2948 config MIPS_ELF_APPENDED_DTB 2949 bool "vmlinux" 2950 help 2951 With this option, the boot code will look for a device tree binary 2952 DTB) included in the vmlinux ELF section .appended_dtb. By default 2953 it is empty and the DTB can be appended using binutils command 2954 objcopy: 2955 2956 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2957 2958 This is meant as a backward compatiblity convenience for those 2959 systems with a bootloader that can't be upgraded to accommodate 2960 the documented boot protocol using a device tree. 2961 2962 config MIPS_RAW_APPENDED_DTB 2963 bool "vmlinux.bin or vmlinuz.bin" 2964 help 2965 With this option, the boot code will look for a device tree binary 2966 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2967 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2968 2969 This is meant as a backward compatibility convenience for those 2970 systems with a bootloader that can't be upgraded to accommodate 2971 the documented boot protocol using a device tree. 2972 2973 Beware that there is very little in terms of protection against 2974 this option being confused by leftover garbage in memory that might 2975 look like a DTB header after a reboot if no actual DTB is appended 2976 to vmlinux.bin. Do not leave this option active in a production kernel 2977 if you don't intend to always append a DTB. 2978endchoice 2979 2980choice 2981 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2982 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2983 !MIPS_MALTA && \ 2984 !CAVIUM_OCTEON_SOC 2985 default MIPS_CMDLINE_FROM_BOOTLOADER 2986 2987 config MIPS_CMDLINE_FROM_DTB 2988 depends on USE_OF 2989 bool "Dtb kernel arguments if available" 2990 2991 config MIPS_CMDLINE_DTB_EXTEND 2992 depends on USE_OF 2993 bool "Extend dtb kernel arguments with bootloader arguments" 2994 2995 config MIPS_CMDLINE_FROM_BOOTLOADER 2996 bool "Bootloader kernel arguments if available" 2997 2998 config MIPS_CMDLINE_BUILTIN_EXTEND 2999 depends on CMDLINE_BOOL 3000 bool "Extend builtin kernel arguments with bootloader arguments" 3001endchoice 3002 3003endmenu 3004 3005config LOCKDEP_SUPPORT 3006 bool 3007 default y 3008 3009config STACKTRACE_SUPPORT 3010 bool 3011 default y 3012 3013config HAVE_LATENCYTOP_SUPPORT 3014 bool 3015 default y 3016 3017config PGTABLE_LEVELS 3018 int 3019 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3020 default 3 if 64BIT && !PAGE_SIZE_64KB 3021 default 2 3022 3023config MIPS_AUTO_PFN_OFFSET 3024 bool 3025 3026menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3027 3028config HW_HAS_EISA 3029 bool 3030config HW_HAS_PCI 3031 bool 3032 3033config PCI 3034 bool "Support for PCI controller" 3035 depends on HW_HAS_PCI 3036 select PCI_DOMAINS 3037 help 3038 Find out whether you have a PCI motherboard. PCI is the name of a 3039 bus system, i.e. the way the CPU talks to the other stuff inside 3040 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3041 say Y, otherwise N. 3042 3043config HT_PCI 3044 bool "Support for HT-linked PCI" 3045 default y 3046 depends on CPU_LOONGSON3 3047 select PCI 3048 select PCI_DOMAINS 3049 help 3050 Loongson family machines use Hyper-Transport bus for inter-core 3051 connection and device connection. The PCI bus is a subordinate 3052 linked at HT. Choose Y for Loongson-3 based machines. 3053 3054config PCI_DOMAINS 3055 bool 3056 3057config PCI_DOMAINS_GENERIC 3058 bool 3059 3060config PCI_DRIVERS_GENERIC 3061 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3062 bool 3063 3064config PCI_DRIVERS_LEGACY 3065 def_bool !PCI_DRIVERS_GENERIC 3066 select NO_GENERIC_PCI_IOPORT_MAP 3067 3068source "drivers/pci/Kconfig" 3069 3070# 3071# ISA support is now enabled via select. Too many systems still have the one 3072# or other ISA chip on the board that users don't know about so don't expect 3073# users to choose the right thing ... 3074# 3075config ISA 3076 bool 3077 3078config EISA 3079 bool "EISA support" 3080 depends on HW_HAS_EISA 3081 select ISA 3082 select GENERIC_ISA_DMA 3083 ---help--- 3084 The Extended Industry Standard Architecture (EISA) bus was 3085 developed as an open alternative to the IBM MicroChannel bus. 3086 3087 The EISA bus provided some of the features of the IBM MicroChannel 3088 bus while maintaining backward compatibility with cards made for 3089 the older ISA bus. The EISA bus saw limited use between 1988 and 3090 1995 when it was made obsolete by the PCI bus. 3091 3092 Say Y here if you are building a kernel for an EISA-based machine. 3093 3094 Otherwise, say N. 3095 3096source "drivers/eisa/Kconfig" 3097 3098config TC 3099 bool "TURBOchannel support" 3100 depends on MACH_DECSTATION 3101 help 3102 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3103 processors. TURBOchannel programming specifications are available 3104 at: 3105 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3106 and: 3107 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3108 Linux driver support status is documented at: 3109 <http://www.linux-mips.org/wiki/DECstation> 3110 3111config MMU 3112 bool 3113 default y 3114 3115config ARCH_MMAP_RND_BITS_MIN 3116 default 12 if 64BIT 3117 default 8 3118 3119config ARCH_MMAP_RND_BITS_MAX 3120 default 18 if 64BIT 3121 default 15 3122 3123config ARCH_MMAP_RND_COMPAT_BITS_MIN 3124 default 8 3125 3126config ARCH_MMAP_RND_COMPAT_BITS_MAX 3127 default 15 3128 3129config I8253 3130 bool 3131 select CLKSRC_I8253 3132 select CLKEVT_I8253 3133 select MIPS_EXTERNAL_TIMER 3134 3135config ZONE_DMA 3136 bool 3137 3138config ZONE_DMA32 3139 bool 3140 3141source "drivers/pcmcia/Kconfig" 3142 3143config HAS_RAPIDIO 3144 bool 3145 default n 3146 3147config RAPIDIO 3148 tristate "RapidIO support" 3149 depends on HAS_RAPIDIO || PCI 3150 help 3151 If you say Y here, the kernel will include drivers and 3152 infrastructure code to support RapidIO interconnect devices. 3153 3154source "drivers/rapidio/Kconfig" 3155 3156endmenu 3157 3158config TRAD_SIGNALS 3159 bool 3160 3161config MIPS32_COMPAT 3162 bool 3163 3164config COMPAT 3165 bool 3166 3167config SYSVIPC_COMPAT 3168 bool 3169 3170config MIPS32_O32 3171 bool "Kernel support for o32 binaries" 3172 depends on 64BIT 3173 select ARCH_WANT_OLD_COMPAT_IPC 3174 select COMPAT 3175 select MIPS32_COMPAT 3176 select SYSVIPC_COMPAT if SYSVIPC 3177 help 3178 Select this option if you want to run o32 binaries. These are pure 3179 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3180 existing binaries are in this format. 3181 3182 If unsure, say Y. 3183 3184config MIPS32_N32 3185 bool "Kernel support for n32 binaries" 3186 depends on 64BIT 3187 select COMPAT 3188 select MIPS32_COMPAT 3189 select SYSVIPC_COMPAT if SYSVIPC 3190 help 3191 Select this option if you want to run n32 binaries. These are 3192 64-bit binaries using 32-bit quantities for addressing and certain 3193 data that would normally be 64-bit. They are used in special 3194 cases. 3195 3196 If unsure, say N. 3197 3198config BINFMT_ELF32 3199 bool 3200 default y if MIPS32_O32 || MIPS32_N32 3201 select ELFCORE 3202 3203menu "Power management options" 3204 3205config ARCH_HIBERNATION_POSSIBLE 3206 def_bool y 3207 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3208 3209config ARCH_SUSPEND_POSSIBLE 3210 def_bool y 3211 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3212 3213source "kernel/power/Kconfig" 3214 3215endmenu 3216 3217config MIPS_EXTERNAL_TIMER 3218 bool 3219 3220menu "CPU Power Management" 3221 3222if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3223source "drivers/cpufreq/Kconfig" 3224endif 3225 3226source "drivers/cpuidle/Kconfig" 3227 3228endmenu 3229 3230source "drivers/firmware/Kconfig" 3231 3232source "arch/mips/kvm/Kconfig" 3233