1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_SUPPORTS_UPROBES 11 select ARCH_USE_BUILTIN_BSWAP 12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 13 select ARCH_USE_QUEUED_RWLOCKS 14 select ARCH_USE_QUEUED_SPINLOCKS 15 select ARCH_WANT_IPC_PARSE_VERSION 16 select BUILDTIME_EXTABLE_SORT 17 select CLONE_BACKWARDS 18 select CPU_PM if CPU_IDLE 19 select DMA_DIRECT_OPS 20 select GENERIC_ATOMIC64 if !64BIT 21 select GENERIC_CLOCKEVENTS 22 select GENERIC_CMOS_UPDATE 23 select GENERIC_CPU_AUTOPROBE 24 select GENERIC_IRQ_PROBE 25 select GENERIC_IRQ_SHOW 26 select GENERIC_LIB_ASHLDI3 27 select GENERIC_LIB_ASHRDI3 28 select GENERIC_LIB_CMPDI2 29 select GENERIC_LIB_LSHRDI3 30 select GENERIC_LIB_UCMPDI2 31 select GENERIC_PCI_IOMAP 32 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 33 select GENERIC_SMP_IDLE_THREAD 34 select GENERIC_TIME_VSYSCALL 35 select HANDLE_DOMAIN_IRQ 36 select HAVE_ARCH_JUMP_LABEL 37 select HAVE_ARCH_KGDB 38 select HAVE_ARCH_MMAP_RND_BITS if MMU 39 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 40 select HAVE_ARCH_SECCOMP_FILTER 41 select HAVE_ARCH_TRACEHOOK 42 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 43 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 44 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 45 select HAVE_CONTEXT_TRACKING 46 select HAVE_COPY_THREAD_TLS 47 select HAVE_C_RECORDMCOUNT 48 select HAVE_DEBUG_KMEMLEAK 49 select HAVE_DEBUG_STACKOVERFLOW 50 select HAVE_DMA_CONTIGUOUS 51 select HAVE_DYNAMIC_FTRACE 52 select HAVE_EXIT_THREAD 53 select HAVE_FTRACE_MCOUNT_RECORD 54 select HAVE_FUNCTION_GRAPH_TRACER 55 select HAVE_FUNCTION_TRACER 56 select HAVE_GENERIC_DMA_COHERENT 57 select HAVE_IDE 58 select HAVE_IRQ_EXIT_ON_IRQ_STACK 59 select HAVE_IRQ_TIME_ACCOUNTING 60 select HAVE_KPROBES 61 select HAVE_KRETPROBES 62 select HAVE_MEMBLOCK 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 if !MACH_LOONGSON64 78 select SYSCTL_EXCEPTION_TRACE 79 select VIRT_TO_BUS 80 81config MIPS_DMA_DEFAULT 82 bool 83 84menu "Machine selection" 85 86choice 87 prompt "System type" 88 default MIPS_GENERIC 89 90config MIPS_GENERIC 91 bool "Generic board-agnostic MIPS kernel" 92 select BOOT_RAW 93 select BUILTIN_DTB 94 select CEVT_R4K 95 select CLKSRC_MIPS_GIC 96 select COMMON_CLK 97 select CPU_MIPSR2_IRQ_VI 98 select CPU_MIPSR2_IRQ_EI 99 select CSRC_R4K 100 select DMA_PERDEV_COHERENT 101 select HW_HAS_PCI 102 select IRQ_MIPS_CPU 103 select LIBFDT 104 select MIPS_CPU_SCACHE 105 select MIPS_DMA_DEFAULT 106 select MIPS_GIC 107 select MIPS_L1_CACHE_SHIFT_7 108 select NO_EXCEPT_FILL 109 select PCI_DRIVERS_GENERIC 110 select PINCTRL 111 select SMP_UP if SMP 112 select SWAP_IO_SPACE 113 select SYS_HAS_CPU_MIPS32_R1 114 select SYS_HAS_CPU_MIPS32_R2 115 select SYS_HAS_CPU_MIPS32_R6 116 select SYS_HAS_CPU_MIPS64_R1 117 select SYS_HAS_CPU_MIPS64_R2 118 select SYS_HAS_CPU_MIPS64_R6 119 select SYS_SUPPORTS_32BIT_KERNEL 120 select SYS_SUPPORTS_64BIT_KERNEL 121 select SYS_SUPPORTS_BIG_ENDIAN 122 select SYS_SUPPORTS_HIGHMEM 123 select SYS_SUPPORTS_LITTLE_ENDIAN 124 select SYS_SUPPORTS_MICROMIPS 125 select SYS_SUPPORTS_MIPS_CPS 126 select SYS_SUPPORTS_MIPS16 127 select SYS_SUPPORTS_MULTITHREADING 128 select SYS_SUPPORTS_RELOCATABLE 129 select SYS_SUPPORTS_SMARTMIPS 130 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 131 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 132 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 133 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 134 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 135 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 136 select USE_OF 137 help 138 Select this to build a kernel which aims to support multiple boards, 139 generally using a flattened device tree passed from the bootloader 140 using the boot protocol defined in the UHI (Unified Hosting 141 Interface) specification. 142 143config MIPS_ALCHEMY 144 bool "Alchemy processor based machines" 145 select PHYS_ADDR_T_64BIT 146 select CEVT_R4K 147 select CSRC_R4K 148 select IRQ_MIPS_CPU 149 select MIPS_DMA_DEFAULT 150 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 151 select SYS_HAS_CPU_MIPS32_R1 152 select SYS_SUPPORTS_32BIT_KERNEL 153 select SYS_SUPPORTS_APM_EMULATION 154 select GPIOLIB 155 select SYS_SUPPORTS_ZBOOT 156 select COMMON_CLK 157 158config AR7 159 bool "Texas Instruments AR7" 160 select BOOT_ELF32 161 select DMA_NONCOHERENT 162 select CEVT_R4K 163 select CSRC_R4K 164 select IRQ_MIPS_CPU 165 select MIPS_DMA_DEFAULT 166 select NO_EXCEPT_FILL 167 select SWAP_IO_SPACE 168 select SYS_HAS_CPU_MIPS32_R1 169 select SYS_HAS_EARLY_PRINTK 170 select SYS_SUPPORTS_32BIT_KERNEL 171 select SYS_SUPPORTS_LITTLE_ENDIAN 172 select SYS_SUPPORTS_MIPS16 173 select SYS_SUPPORTS_ZBOOT_UART16550 174 select GPIOLIB 175 select VLYNQ 176 select HAVE_CLK 177 help 178 Support for the Texas Instruments AR7 System-on-a-Chip 179 family: TNETD7100, 7200 and 7300. 180 181config ATH25 182 bool "Atheros AR231x/AR531x SoC support" 183 select CEVT_R4K 184 select CSRC_R4K 185 select DMA_NONCOHERENT 186 select IRQ_MIPS_CPU 187 select IRQ_DOMAIN 188 select MIPS_DMA_DEFAULT 189 select SYS_HAS_CPU_MIPS32_R1 190 select SYS_SUPPORTS_BIG_ENDIAN 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_HAS_EARLY_PRINTK 193 help 194 Support for Atheros AR231x and Atheros AR531x based boards 195 196config ATH79 197 bool "Atheros AR71XX/AR724X/AR913X based boards" 198 select ARCH_HAS_RESET_CONTROLLER 199 select BOOT_RAW 200 select CEVT_R4K 201 select CSRC_R4K 202 select DMA_NONCOHERENT 203 select GPIOLIB 204 select HAVE_CLK 205 select COMMON_CLK 206 select CLKDEV_LOOKUP 207 select IRQ_MIPS_CPU 208 select MIPS_DMA_DEFAULT 209 select MIPS_MACHINE 210 select SYS_HAS_CPU_MIPS32_R2 211 select SYS_HAS_EARLY_PRINTK 212 select SYS_SUPPORTS_32BIT_KERNEL 213 select SYS_SUPPORTS_BIG_ENDIAN 214 select SYS_SUPPORTS_MIPS16 215 select SYS_SUPPORTS_ZBOOT_UART_PROM 216 select USE_OF 217 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 218 help 219 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 220 221config BMIPS_GENERIC 222 bool "Broadcom Generic BMIPS kernel" 223 select BOOT_RAW 224 select NO_EXCEPT_FILL 225 select USE_OF 226 select CEVT_R4K 227 select CSRC_R4K 228 select SYNC_R4K 229 select COMMON_CLK 230 select BCM6345_L1_IRQ 231 select BCM7038_L1_IRQ 232 select BCM7120_L2_IRQ 233 select BRCMSTB_L2_IRQ 234 select IRQ_MIPS_CPU 235 select MIPS_DMA_DEFAULT 236 select DMA_NONCOHERENT 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select SYS_SUPPORTS_BIG_ENDIAN 240 select SYS_SUPPORTS_HIGHMEM 241 select SYS_HAS_CPU_BMIPS32_3300 242 select SYS_HAS_CPU_BMIPS4350 243 select SYS_HAS_CPU_BMIPS4380 244 select SYS_HAS_CPU_BMIPS5000 245 select SWAP_IO_SPACE 246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 250 select HARDIRQS_SW_RESEND 251 help 252 Build a generic DT-based kernel image that boots on select 253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 255 must be set appropriately for your board. 256 257config BCM47XX 258 bool "Broadcom BCM47XX based boards" 259 select BOOT_RAW 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select HW_HAS_PCI 264 select IRQ_MIPS_CPU 265 select SYS_HAS_CPU_MIPS32_R1 266 select MIPS_DMA_DEFAULT 267 select NO_EXCEPT_FILL 268 select SYS_SUPPORTS_32BIT_KERNEL 269 select SYS_SUPPORTS_LITTLE_ENDIAN 270 select SYS_SUPPORTS_MIPS16 271 select SYS_SUPPORTS_ZBOOT 272 select SYS_HAS_EARLY_PRINTK 273 select USE_GENERIC_EARLY_PRINTK_8250 274 select GPIOLIB 275 select LEDS_GPIO_REGISTER 276 select BCM47XX_NVRAM 277 select BCM47XX_SPROM 278 select BCM47XX_SSB if !BCM47XX_BCMA 279 help 280 Support for BCM47XX based boards 281 282config BCM63XX 283 bool "Broadcom BCM63XX based boards" 284 select BOOT_RAW 285 select CEVT_R4K 286 select CSRC_R4K 287 select SYNC_R4K 288 select DMA_NONCOHERENT 289 select IRQ_MIPS_CPU 290 select MIPS_DMA_DEFAULT 291 select SYS_SUPPORTS_32BIT_KERNEL 292 select SYS_SUPPORTS_BIG_ENDIAN 293 select SYS_HAS_EARLY_PRINTK 294 select SWAP_IO_SPACE 295 select GPIOLIB 296 select HAVE_CLK 297 select MIPS_L1_CACHE_SHIFT_4 298 select CLKDEV_LOOKUP 299 help 300 Support for BCM63XX based boards 301 302config MIPS_COBALT 303 bool "Cobalt Server" 304 select CEVT_R4K 305 select CSRC_R4K 306 select CEVT_GT641XX 307 select DMA_NONCOHERENT 308 select HW_HAS_PCI 309 select I8253 310 select I8259 311 select IRQ_MIPS_CPU 312 select IRQ_GT641XX 313 select MIPS_DMA_DEFAULT 314 select PCI_GT64XXX_PCI0 315 select PCI 316 select SYS_HAS_CPU_NEVADA 317 select SYS_HAS_EARLY_PRINTK 318 select SYS_SUPPORTS_32BIT_KERNEL 319 select SYS_SUPPORTS_64BIT_KERNEL 320 select SYS_SUPPORTS_LITTLE_ENDIAN 321 select USE_GENERIC_EARLY_PRINTK_8250 322 323config MACH_DECSTATION 324 bool "DECstations" 325 select BOOT_ELF32 326 select CEVT_DS1287 327 select CEVT_R4K if CPU_R4X00 328 select CSRC_IOASIC 329 select CSRC_R4K if CPU_R4X00 330 select CPU_DADDI_WORKAROUNDS if 64BIT 331 select CPU_R4000_WORKAROUNDS if 64BIT 332 select CPU_R4400_WORKAROUNDS if 64BIT 333 select DMA_NONCOHERENT 334 select MIPS_DMA_DEFAULT 335 select NO_IOPORT_MAP 336 select IRQ_MIPS_CPU 337 select SYS_HAS_CPU_R3000 338 select SYS_HAS_CPU_R4X00 339 select SYS_SUPPORTS_32BIT_KERNEL 340 select SYS_SUPPORTS_64BIT_KERNEL 341 select SYS_SUPPORTS_LITTLE_ENDIAN 342 select SYS_SUPPORTS_128HZ 343 select SYS_SUPPORTS_256HZ 344 select SYS_SUPPORTS_1024HZ 345 select MIPS_L1_CACHE_SHIFT_4 346 help 347 This enables support for DEC's MIPS based workstations. For details 348 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 349 DECstation porting pages on <http://decstation.unix-ag.org/>. 350 351 If you have one of the following DECstation Models you definitely 352 want to choose R4xx0 for the CPU Type: 353 354 DECstation 5000/50 355 DECstation 5000/150 356 DECstation 5000/260 357 DECsystem 5900/260 358 359 otherwise choose R3000. 360 361config MACH_JAZZ 362 bool "Jazz family of machines" 363 select ARCH_MIGHT_HAVE_PC_PARPORT 364 select ARCH_MIGHT_HAVE_PC_SERIO 365 select FW_ARC 366 select FW_ARC32 367 select ARCH_MAY_HAVE_PC_FDC 368 select CEVT_R4K 369 select CSRC_R4K 370 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 371 select GENERIC_ISA_DMA 372 select HAVE_PCSPKR_PLATFORM 373 select IRQ_MIPS_CPU 374 select I8253 375 select I8259 376 select ISA 377 select SYS_HAS_CPU_R4X00 378 select SYS_SUPPORTS_32BIT_KERNEL 379 select SYS_SUPPORTS_64BIT_KERNEL 380 select SYS_SUPPORTS_100HZ 381 help 382 This a family of machines based on the MIPS R4030 chipset which was 383 used by several vendors to build RISC/os and Windows NT workstations. 384 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 385 Olivetti M700-10 workstations. 386 387config MACH_INGENIC 388 bool "Ingenic SoC based machines" 389 select SYS_SUPPORTS_32BIT_KERNEL 390 select SYS_SUPPORTS_LITTLE_ENDIAN 391 select SYS_SUPPORTS_ZBOOT_UART16550 392 select DMA_NONCOHERENT 393 select IRQ_MIPS_CPU 394 select MIPS_DMA_DEFAULT 395 select PINCTRL 396 select GPIOLIB 397 select COMMON_CLK 398 select GENERIC_IRQ_CHIP 399 select BUILTIN_DTB 400 select USE_OF 401 select LIBFDT 402 403config LANTIQ 404 bool "Lantiq based platforms" 405 select DMA_NONCOHERENT 406 select IRQ_MIPS_CPU 407 select CEVT_R4K 408 select CSRC_R4K 409 select MIPS_DMA_DEFAULT 410 select SYS_HAS_CPU_MIPS32_R1 411 select SYS_HAS_CPU_MIPS32_R2 412 select SYS_SUPPORTS_BIG_ENDIAN 413 select SYS_SUPPORTS_32BIT_KERNEL 414 select SYS_SUPPORTS_MIPS16 415 select SYS_SUPPORTS_MULTITHREADING 416 select SYS_SUPPORTS_VPE_LOADER 417 select SYS_HAS_EARLY_PRINTK 418 select GPIOLIB 419 select SWAP_IO_SPACE 420 select BOOT_RAW 421 select CLKDEV_LOOKUP 422 select USE_OF 423 select PINCTRL 424 select PINCTRL_LANTIQ 425 select ARCH_HAS_RESET_CONTROLLER 426 select RESET_CONTROLLER 427 428config LASAT 429 bool "LASAT Networks platforms" 430 select CEVT_R4K 431 select CRC32 432 select CSRC_R4K 433 select DMA_NONCOHERENT 434 select SYS_HAS_EARLY_PRINTK 435 select HW_HAS_PCI 436 select IRQ_MIPS_CPU 437 select MIPS_DMA_DEFAULT 438 select PCI_GT64XXX_PCI0 439 select MIPS_NILE4 440 select R5000_CPU_SCACHE 441 select SYS_HAS_CPU_R5000 442 select SYS_SUPPORTS_32BIT_KERNEL 443 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 444 select SYS_SUPPORTS_LITTLE_ENDIAN 445 446config MACH_LOONGSON32 447 bool "Loongson-1 family of machines" 448 select SYS_SUPPORTS_ZBOOT 449 help 450 This enables support for the Loongson-1 family of machines. 451 452 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 453 the Institute of Computing Technology (ICT), Chinese Academy of 454 Sciences (CAS). 455 456config MACH_LOONGSON64 457 bool "Loongson-2/3 family of machines" 458 select SYS_SUPPORTS_ZBOOT 459 help 460 This enables the support of Loongson-2/3 family of machines. 461 462 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 463 family of multi-core CPUs. They are both 64-bit general-purpose 464 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 465 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 466 in the People's Republic of China. The chief architect is Professor 467 Weiwu Hu. 468 469config MACH_PISTACHIO 470 bool "IMG Pistachio SoC based boards" 471 select BOOT_ELF32 472 select BOOT_RAW 473 select CEVT_R4K 474 select CLKSRC_MIPS_GIC 475 select COMMON_CLK 476 select CSRC_R4K 477 select DMA_NONCOHERENT 478 select GPIOLIB 479 select IRQ_MIPS_CPU 480 select LIBFDT 481 select MFD_SYSCON 482 select MIPS_CPU_SCACHE 483 select MIPS_DMA_DEFAULT 484 select MIPS_GIC 485 select PINCTRL 486 select REGULATOR 487 select SYS_HAS_CPU_MIPS32_R2 488 select SYS_SUPPORTS_32BIT_KERNEL 489 select SYS_SUPPORTS_LITTLE_ENDIAN 490 select SYS_SUPPORTS_MIPS_CPS 491 select SYS_SUPPORTS_MULTITHREADING 492 select SYS_SUPPORTS_RELOCATABLE 493 select SYS_SUPPORTS_ZBOOT 494 select SYS_HAS_EARLY_PRINTK 495 select USE_GENERIC_EARLY_PRINTK_8250 496 select USE_OF 497 help 498 This enables support for the IMG Pistachio SoC platform. 499 500config MIPS_MALTA 501 bool "MIPS Malta board" 502 select ARCH_MAY_HAVE_PC_FDC 503 select ARCH_MIGHT_HAVE_PC_PARPORT 504 select ARCH_MIGHT_HAVE_PC_SERIO 505 select BOOT_ELF32 506 select BOOT_RAW 507 select BUILTIN_DTB 508 select CEVT_R4K 509 select CSRC_R4K 510 select CLKSRC_MIPS_GIC 511 select COMMON_CLK 512 select DMA_MAYBE_COHERENT 513 select GENERIC_ISA_DMA 514 select HAVE_PCSPKR_PLATFORM 515 select IRQ_MIPS_CPU 516 select MIPS_DMA_DEFAULT 517 select MIPS_GIC 518 select HW_HAS_PCI 519 select I8253 520 select I8259 521 select MIPS_BONITO64 522 select MIPS_CPU_SCACHE 523 select MIPS_L1_CACHE_SHIFT_6 524 select PCI_GT64XXX_PCI0 525 select MIPS_MSC 526 select SMP_UP if SMP 527 select SWAP_IO_SPACE 528 select SYS_HAS_CPU_MIPS32_R1 529 select SYS_HAS_CPU_MIPS32_R2 530 select SYS_HAS_CPU_MIPS32_R3_5 531 select SYS_HAS_CPU_MIPS32_R5 532 select SYS_HAS_CPU_MIPS32_R6 533 select SYS_HAS_CPU_MIPS64_R1 534 select SYS_HAS_CPU_MIPS64_R2 535 select SYS_HAS_CPU_MIPS64_R6 536 select SYS_HAS_CPU_NEVADA 537 select SYS_HAS_CPU_RM7000 538 select SYS_SUPPORTS_32BIT_KERNEL 539 select SYS_SUPPORTS_64BIT_KERNEL 540 select SYS_SUPPORTS_BIG_ENDIAN 541 select SYS_SUPPORTS_HIGHMEM 542 select SYS_SUPPORTS_LITTLE_ENDIAN 543 select SYS_SUPPORTS_MICROMIPS 544 select SYS_SUPPORTS_MIPS_CMP 545 select SYS_SUPPORTS_MIPS_CPS 546 select SYS_SUPPORTS_MIPS16 547 select SYS_SUPPORTS_MULTITHREADING 548 select SYS_SUPPORTS_SMARTMIPS 549 select SYS_SUPPORTS_VPE_LOADER 550 select SYS_SUPPORTS_ZBOOT 551 select SYS_SUPPORTS_RELOCATABLE 552 select USE_OF 553 select LIBFDT 554 select ZONE_DMA32 if 64BIT 555 select BUILTIN_DTB 556 select LIBFDT 557 help 558 This enables support for the MIPS Technologies Malta evaluation 559 board. 560 561config MACH_PIC32 562 bool "Microchip PIC32 Family" 563 help 564 This enables support for the Microchip PIC32 family of platforms. 565 566 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 567 microcontrollers. 568 569config NEC_MARKEINS 570 bool "NEC EMMA2RH Mark-eins board" 571 select SOC_EMMA2RH 572 select HW_HAS_PCI 573 help 574 This enables support for the NEC Electronics Mark-eins boards. 575 576config MACH_VR41XX 577 bool "NEC VR4100 series based machines" 578 select CEVT_R4K 579 select CSRC_R4K 580 select SYS_HAS_CPU_VR41XX 581 select SYS_SUPPORTS_MIPS16 582 select GPIOLIB 583 584config NXP_STB220 585 bool "NXP STB220 board" 586 select SOC_PNX833X 587 help 588 Support for NXP Semiconductors STB220 Development Board. 589 590config NXP_STB225 591 bool "NXP 225 board" 592 select SOC_PNX833X 593 select SOC_PNX8335 594 help 595 Support for NXP Semiconductors STB225 Development Board. 596 597config PMC_MSP 598 bool "PMC-Sierra MSP chipsets" 599 select CEVT_R4K 600 select CSRC_R4K 601 select DMA_NONCOHERENT 602 select SWAP_IO_SPACE 603 select NO_EXCEPT_FILL 604 select BOOT_RAW 605 select SYS_HAS_CPU_MIPS32_R1 606 select SYS_HAS_CPU_MIPS32_R2 607 select SYS_SUPPORTS_32BIT_KERNEL 608 select SYS_SUPPORTS_BIG_ENDIAN 609 select SYS_SUPPORTS_MIPS16 610 select IRQ_MIPS_CPU 611 select MIPS_DMA_DEFAULT 612 select SERIAL_8250 613 select SERIAL_8250_CONSOLE 614 select USB_EHCI_BIG_ENDIAN_MMIO 615 select USB_EHCI_BIG_ENDIAN_DESC 616 help 617 This adds support for the PMC-Sierra family of Multi-Service 618 Processor System-On-A-Chips. These parts include a number 619 of integrated peripherals, interfaces and DSPs in addition to 620 a variety of MIPS cores. 621 622config RALINK 623 bool "Ralink based machines" 624 select CEVT_R4K 625 select CSRC_R4K 626 select BOOT_RAW 627 select DMA_NONCOHERENT 628 select IRQ_MIPS_CPU 629 select MIPS_DMA_DEFAULT 630 select USE_OF 631 select SYS_HAS_CPU_MIPS32_R1 632 select SYS_HAS_CPU_MIPS32_R2 633 select SYS_SUPPORTS_32BIT_KERNEL 634 select SYS_SUPPORTS_LITTLE_ENDIAN 635 select SYS_SUPPORTS_MIPS16 636 select SYS_HAS_EARLY_PRINTK 637 select CLKDEV_LOOKUP 638 select ARCH_HAS_RESET_CONTROLLER 639 select RESET_CONTROLLER 640 641config SGI_IP22 642 bool "SGI IP22 (Indy/Indigo2)" 643 select FW_ARC 644 select FW_ARC32 645 select ARCH_MIGHT_HAVE_PC_SERIO 646 select BOOT_ELF32 647 select CEVT_R4K 648 select CSRC_R4K 649 select DEFAULT_SGI_PARTITION 650 select DMA_NONCOHERENT 651 select HW_HAS_EISA 652 select I8253 653 select I8259 654 select IP22_CPU_SCACHE 655 select IRQ_MIPS_CPU 656 select MIPS_DMA_DEFAULT 657 select GENERIC_ISA_DMA_SUPPORT_BROKEN 658 select SGI_HAS_I8042 659 select SGI_HAS_INDYDOG 660 select SGI_HAS_HAL2 661 select SGI_HAS_SEEQ 662 select SGI_HAS_WD93 663 select SGI_HAS_ZILOG 664 select SWAP_IO_SPACE 665 select SYS_HAS_CPU_R4X00 666 select SYS_HAS_CPU_R5000 667 # 668 # Disable EARLY_PRINTK for now since it leads to overwritten prom 669 # memory during early boot on some machines. 670 # 671 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 672 # for a more details discussion 673 # 674 # select SYS_HAS_EARLY_PRINTK 675 select SYS_SUPPORTS_32BIT_KERNEL 676 select SYS_SUPPORTS_64BIT_KERNEL 677 select SYS_SUPPORTS_BIG_ENDIAN 678 select MIPS_L1_CACHE_SHIFT_7 679 help 680 This are the SGI Indy, Challenge S and Indigo2, as well as certain 681 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 682 that runs on these, say Y here. 683 684config SGI_IP27 685 bool "SGI IP27 (Origin200/2000)" 686 select ARCH_HAS_PHYS_TO_DMA 687 select FW_ARC 688 select FW_ARC64 689 select BOOT_ELF64 690 select DEFAULT_SGI_PARTITION 691 select SYS_HAS_EARLY_PRINTK 692 select HW_HAS_PCI 693 select NR_CPUS_DEFAULT_64 694 select SYS_HAS_CPU_R10000 695 select SYS_SUPPORTS_64BIT_KERNEL 696 select SYS_SUPPORTS_BIG_ENDIAN 697 select SYS_SUPPORTS_NUMA 698 select SYS_SUPPORTS_SMP 699 select MIPS_L1_CACHE_SHIFT_7 700 help 701 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 702 workstations. To compile a Linux kernel that runs on these, say Y 703 here. 704 705config SGI_IP28 706 bool "SGI IP28 (Indigo2 R10k)" 707 select FW_ARC 708 select FW_ARC64 709 select ARCH_MIGHT_HAVE_PC_SERIO 710 select BOOT_ELF64 711 select CEVT_R4K 712 select CSRC_R4K 713 select DEFAULT_SGI_PARTITION 714 select DMA_NONCOHERENT 715 select GENERIC_ISA_DMA_SUPPORT_BROKEN 716 select IRQ_MIPS_CPU 717 select MIPS_DMA_DEFAULT 718 select HW_HAS_EISA 719 select I8253 720 select I8259 721 select SGI_HAS_I8042 722 select SGI_HAS_INDYDOG 723 select SGI_HAS_HAL2 724 select SGI_HAS_SEEQ 725 select SGI_HAS_WD93 726 select SGI_HAS_ZILOG 727 select SWAP_IO_SPACE 728 select SYS_HAS_CPU_R10000 729 # 730 # Disable EARLY_PRINTK for now since it leads to overwritten prom 731 # memory during early boot on some machines. 732 # 733 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 734 # for a more details discussion 735 # 736 # select SYS_HAS_EARLY_PRINTK 737 select SYS_SUPPORTS_64BIT_KERNEL 738 select SYS_SUPPORTS_BIG_ENDIAN 739 select MIPS_L1_CACHE_SHIFT_7 740 help 741 This is the SGI Indigo2 with R10000 processor. To compile a Linux 742 kernel that runs on these, say Y here. 743 744config SGI_IP32 745 bool "SGI IP32 (O2)" 746 select FW_ARC 747 select FW_ARC32 748 select BOOT_ELF32 749 select CEVT_R4K 750 select CSRC_R4K 751 select DMA_NONCOHERENT 752 select HW_HAS_PCI 753 select IRQ_MIPS_CPU 754 select MIPS_DMA_DEFAULT 755 select R5000_CPU_SCACHE 756 select RM7000_CPU_SCACHE 757 select SYS_HAS_CPU_R5000 758 select SYS_HAS_CPU_R10000 if BROKEN 759 select SYS_HAS_CPU_RM7000 760 select SYS_HAS_CPU_NEVADA 761 select SYS_SUPPORTS_64BIT_KERNEL 762 select SYS_SUPPORTS_BIG_ENDIAN 763 help 764 If you want this kernel to run on SGI O2 workstation, say Y here. 765 766config SIBYTE_CRHINE 767 bool "Sibyte BCM91120C-CRhine" 768 select BOOT_ELF32 769 select SIBYTE_BCM1120 770 select SWAP_IO_SPACE 771 select SYS_HAS_CPU_SB1 772 select SYS_SUPPORTS_BIG_ENDIAN 773 select SYS_SUPPORTS_LITTLE_ENDIAN 774 775config SIBYTE_CARMEL 776 bool "Sibyte BCM91120x-Carmel" 777 select BOOT_ELF32 778 select SIBYTE_BCM1120 779 select SWAP_IO_SPACE 780 select SYS_HAS_CPU_SB1 781 select SYS_SUPPORTS_BIG_ENDIAN 782 select SYS_SUPPORTS_LITTLE_ENDIAN 783 784config SIBYTE_CRHONE 785 bool "Sibyte BCM91125C-CRhone" 786 select BOOT_ELF32 787 select SIBYTE_BCM1125 788 select SWAP_IO_SPACE 789 select SYS_HAS_CPU_SB1 790 select SYS_SUPPORTS_BIG_ENDIAN 791 select SYS_SUPPORTS_HIGHMEM 792 select SYS_SUPPORTS_LITTLE_ENDIAN 793 794config SIBYTE_RHONE 795 bool "Sibyte BCM91125E-Rhone" 796 select BOOT_ELF32 797 select SIBYTE_BCM1125H 798 select SWAP_IO_SPACE 799 select SYS_HAS_CPU_SB1 800 select SYS_SUPPORTS_BIG_ENDIAN 801 select SYS_SUPPORTS_LITTLE_ENDIAN 802 803config SIBYTE_SWARM 804 bool "Sibyte BCM91250A-SWARM" 805 select BOOT_ELF32 806 select HAVE_PATA_PLATFORM 807 select SIBYTE_SB1250 808 select SWAP_IO_SPACE 809 select SYS_HAS_CPU_SB1 810 select SYS_SUPPORTS_BIG_ENDIAN 811 select SYS_SUPPORTS_HIGHMEM 812 select SYS_SUPPORTS_LITTLE_ENDIAN 813 select ZONE_DMA32 if 64BIT 814 815config SIBYTE_LITTLESUR 816 bool "Sibyte BCM91250C2-LittleSur" 817 select BOOT_ELF32 818 select HAVE_PATA_PLATFORM 819 select SIBYTE_SB1250 820 select SWAP_IO_SPACE 821 select SYS_HAS_CPU_SB1 822 select SYS_SUPPORTS_BIG_ENDIAN 823 select SYS_SUPPORTS_HIGHMEM 824 select SYS_SUPPORTS_LITTLE_ENDIAN 825 826config SIBYTE_SENTOSA 827 bool "Sibyte BCM91250E-Sentosa" 828 select BOOT_ELF32 829 select SIBYTE_SB1250 830 select SWAP_IO_SPACE 831 select SYS_HAS_CPU_SB1 832 select SYS_SUPPORTS_BIG_ENDIAN 833 select SYS_SUPPORTS_LITTLE_ENDIAN 834 835config SIBYTE_BIGSUR 836 bool "Sibyte BCM91480B-BigSur" 837 select BOOT_ELF32 838 select NR_CPUS_DEFAULT_4 839 select SIBYTE_BCM1x80 840 select SWAP_IO_SPACE 841 select SYS_HAS_CPU_SB1 842 select SYS_SUPPORTS_BIG_ENDIAN 843 select SYS_SUPPORTS_HIGHMEM 844 select SYS_SUPPORTS_LITTLE_ENDIAN 845 select ZONE_DMA32 if 64BIT 846 847config SNI_RM 848 bool "SNI RM200/300/400" 849 select FW_ARC if CPU_LITTLE_ENDIAN 850 select FW_ARC32 if CPU_LITTLE_ENDIAN 851 select FW_SNIPROM if CPU_BIG_ENDIAN 852 select ARCH_MAY_HAVE_PC_FDC 853 select ARCH_MIGHT_HAVE_PC_PARPORT 854 select ARCH_MIGHT_HAVE_PC_SERIO 855 select BOOT_ELF32 856 select CEVT_R4K 857 select CSRC_R4K 858 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 859 select DMA_NONCOHERENT 860 select GENERIC_ISA_DMA 861 select HAVE_PCSPKR_PLATFORM 862 select HW_HAS_EISA 863 select HW_HAS_PCI 864 select IRQ_MIPS_CPU 865 select I8253 866 select I8259 867 select ISA 868 select MIPS_DMA_DEFAULT 869 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 870 select SYS_HAS_CPU_R4X00 871 select SYS_HAS_CPU_R5000 872 select SYS_HAS_CPU_R10000 873 select R5000_CPU_SCACHE 874 select SYS_HAS_EARLY_PRINTK 875 select SYS_SUPPORTS_32BIT_KERNEL 876 select SYS_SUPPORTS_64BIT_KERNEL 877 select SYS_SUPPORTS_BIG_ENDIAN 878 select SYS_SUPPORTS_HIGHMEM 879 select SYS_SUPPORTS_LITTLE_ENDIAN 880 help 881 The SNI RM200/300/400 are MIPS-based machines manufactured by 882 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 883 Technology and now in turn merged with Fujitsu. Say Y here to 884 support this machine type. 885 886config MACH_TX39XX 887 bool "Toshiba TX39 series based machines" 888 889config MACH_TX49XX 890 bool "Toshiba TX49 series based machines" 891 892config MIKROTIK_RB532 893 bool "Mikrotik RB532 boards" 894 select CEVT_R4K 895 select CSRC_R4K 896 select DMA_NONCOHERENT 897 select HW_HAS_PCI 898 select IRQ_MIPS_CPU 899 select MIPS_DMA_DEFAULT 900 select SYS_HAS_CPU_MIPS32_R1 901 select SYS_SUPPORTS_32BIT_KERNEL 902 select SYS_SUPPORTS_LITTLE_ENDIAN 903 select SWAP_IO_SPACE 904 select BOOT_RAW 905 select GPIOLIB 906 select MIPS_L1_CACHE_SHIFT_4 907 help 908 Support the Mikrotik(tm) RouterBoard 532 series, 909 based on the IDT RC32434 SoC. 910 911config CAVIUM_OCTEON_SOC 912 bool "Cavium Networks Octeon SoC based boards" 913 select CEVT_R4K 914 select ARCH_HAS_PHYS_TO_DMA 915 select PHYS_ADDR_T_64BIT 916 select SYS_SUPPORTS_64BIT_KERNEL 917 select SYS_SUPPORTS_BIG_ENDIAN 918 select EDAC_SUPPORT 919 select EDAC_ATOMIC_SCRUB 920 select SYS_SUPPORTS_LITTLE_ENDIAN 921 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 922 select SYS_HAS_EARLY_PRINTK 923 select SYS_HAS_CPU_CAVIUM_OCTEON 924 select HW_HAS_PCI 925 select ZONE_DMA32 926 select HOLES_IN_ZONE 927 select GPIOLIB 928 select LIBFDT 929 select USE_OF 930 select ARCH_SPARSEMEM_ENABLE 931 select SYS_SUPPORTS_SMP 932 select NR_CPUS_DEFAULT_64 933 select MIPS_NR_CPU_NR_MAP_1024 934 select BUILTIN_DTB 935 select MTD_COMPLEX_MAPPINGS 936 select SWIOTLB 937 select SYS_SUPPORTS_RELOCATABLE 938 help 939 This option supports all of the Octeon reference boards from Cavium 940 Networks. It builds a kernel that dynamically determines the Octeon 941 CPU type and supports all known board reference implementations. 942 Some of the supported boards are: 943 EBT3000 944 EBH3000 945 EBH3100 946 Thunder 947 Kodama 948 Hikari 949 Say Y here for most Octeon reference boards. 950 951config NLM_XLR_BOARD 952 bool "Netlogic XLR/XLS based systems" 953 select BOOT_ELF32 954 select NLM_COMMON 955 select SYS_HAS_CPU_XLR 956 select SYS_SUPPORTS_SMP 957 select HW_HAS_PCI 958 select SWAP_IO_SPACE 959 select SYS_SUPPORTS_32BIT_KERNEL 960 select SYS_SUPPORTS_64BIT_KERNEL 961 select PHYS_ADDR_T_64BIT 962 select SYS_SUPPORTS_BIG_ENDIAN 963 select SYS_SUPPORTS_HIGHMEM 964 select NR_CPUS_DEFAULT_32 965 select CEVT_R4K 966 select CSRC_R4K 967 select IRQ_MIPS_CPU 968 select ZONE_DMA32 if 64BIT 969 select SYNC_R4K 970 select SYS_HAS_EARLY_PRINTK 971 select SYS_SUPPORTS_ZBOOT 972 select SYS_SUPPORTS_ZBOOT_UART16550 973 help 974 Support for systems based on Netlogic XLR and XLS processors. 975 Say Y here if you have a XLR or XLS based board. 976 977config NLM_XLP_BOARD 978 bool "Netlogic XLP based systems" 979 select BOOT_ELF32 980 select NLM_COMMON 981 select SYS_HAS_CPU_XLP 982 select SYS_SUPPORTS_SMP 983 select HW_HAS_PCI 984 select SYS_SUPPORTS_32BIT_KERNEL 985 select SYS_SUPPORTS_64BIT_KERNEL 986 select PHYS_ADDR_T_64BIT 987 select GPIOLIB 988 select SYS_SUPPORTS_BIG_ENDIAN 989 select SYS_SUPPORTS_LITTLE_ENDIAN 990 select SYS_SUPPORTS_HIGHMEM 991 select NR_CPUS_DEFAULT_32 992 select CEVT_R4K 993 select CSRC_R4K 994 select IRQ_MIPS_CPU 995 select ZONE_DMA32 if 64BIT 996 select SYNC_R4K 997 select SYS_HAS_EARLY_PRINTK 998 select USE_OF 999 select SYS_SUPPORTS_ZBOOT 1000 select SYS_SUPPORTS_ZBOOT_UART16550 1001 help 1002 This board is based on Netlogic XLP Processor. 1003 Say Y here if you have a XLP based board. 1004 1005config MIPS_PARAVIRT 1006 bool "Para-Virtualized guest system" 1007 select CEVT_R4K 1008 select CSRC_R4K 1009 select SYS_SUPPORTS_64BIT_KERNEL 1010 select SYS_SUPPORTS_32BIT_KERNEL 1011 select SYS_SUPPORTS_BIG_ENDIAN 1012 select SYS_SUPPORTS_SMP 1013 select NR_CPUS_DEFAULT_4 1014 select SYS_HAS_EARLY_PRINTK 1015 select SYS_HAS_CPU_MIPS32_R2 1016 select SYS_HAS_CPU_MIPS64_R2 1017 select SYS_HAS_CPU_CAVIUM_OCTEON 1018 select HW_HAS_PCI 1019 select SWAP_IO_SPACE 1020 help 1021 This option supports guest running under ???? 1022 1023endchoice 1024 1025source "arch/mips/alchemy/Kconfig" 1026source "arch/mips/ath25/Kconfig" 1027source "arch/mips/ath79/Kconfig" 1028source "arch/mips/bcm47xx/Kconfig" 1029source "arch/mips/bcm63xx/Kconfig" 1030source "arch/mips/bmips/Kconfig" 1031source "arch/mips/generic/Kconfig" 1032source "arch/mips/jazz/Kconfig" 1033source "arch/mips/jz4740/Kconfig" 1034source "arch/mips/lantiq/Kconfig" 1035source "arch/mips/lasat/Kconfig" 1036source "arch/mips/pic32/Kconfig" 1037source "arch/mips/pistachio/Kconfig" 1038source "arch/mips/pmcs-msp71xx/Kconfig" 1039source "arch/mips/ralink/Kconfig" 1040source "arch/mips/sgi-ip27/Kconfig" 1041source "arch/mips/sibyte/Kconfig" 1042source "arch/mips/txx9/Kconfig" 1043source "arch/mips/vr41xx/Kconfig" 1044source "arch/mips/cavium-octeon/Kconfig" 1045source "arch/mips/loongson32/Kconfig" 1046source "arch/mips/loongson64/Kconfig" 1047source "arch/mips/netlogic/Kconfig" 1048source "arch/mips/paravirt/Kconfig" 1049 1050endmenu 1051 1052config RWSEM_GENERIC_SPINLOCK 1053 bool 1054 default y 1055 1056config RWSEM_XCHGADD_ALGORITHM 1057 bool 1058 1059config GENERIC_HWEIGHT 1060 bool 1061 default y 1062 1063config GENERIC_CALIBRATE_DELAY 1064 bool 1065 default y 1066 1067config SCHED_OMIT_FRAME_POINTER 1068 bool 1069 default y 1070 1071# 1072# Select some configuration options automatically based on user selections. 1073# 1074config FW_ARC 1075 bool 1076 1077config ARCH_MAY_HAVE_PC_FDC 1078 bool 1079 1080config BOOT_RAW 1081 bool 1082 1083config CEVT_BCM1480 1084 bool 1085 1086config CEVT_DS1287 1087 bool 1088 1089config CEVT_GT641XX 1090 bool 1091 1092config CEVT_R4K 1093 bool 1094 1095config CEVT_SB1250 1096 bool 1097 1098config CEVT_TXX9 1099 bool 1100 1101config CSRC_BCM1480 1102 bool 1103 1104config CSRC_IOASIC 1105 bool 1106 1107config CSRC_R4K 1108 bool 1109 1110config CSRC_SB1250 1111 bool 1112 1113config MIPS_CLOCK_VSYSCALL 1114 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1115 1116config GPIO_TXX9 1117 select GPIOLIB 1118 bool 1119 1120config FW_CFE 1121 bool 1122 1123config ARCH_SUPPORTS_UPROBES 1124 bool 1125 1126config DMA_MAYBE_COHERENT 1127 select DMA_NONCOHERENT 1128 bool 1129 1130config DMA_PERDEV_COHERENT 1131 bool 1132 select DMA_MAYBE_COHERENT 1133 1134config DMA_NONCOHERENT 1135 bool 1136 select NEED_DMA_MAP_STATE 1137 1138config SYS_HAS_EARLY_PRINTK 1139 bool 1140 1141config SYS_SUPPORTS_HOTPLUG_CPU 1142 bool 1143 1144config MIPS_BONITO64 1145 bool 1146 1147config MIPS_MSC 1148 bool 1149 1150config MIPS_NILE4 1151 bool 1152 1153config SYNC_R4K 1154 bool 1155 1156config MIPS_MACHINE 1157 def_bool n 1158 1159config NO_IOPORT_MAP 1160 def_bool n 1161 1162config GENERIC_CSUM 1163 bool 1164 1165config GENERIC_ISA_DMA 1166 bool 1167 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1168 select ISA_DMA_API 1169 1170config GENERIC_ISA_DMA_SUPPORT_BROKEN 1171 bool 1172 select GENERIC_ISA_DMA 1173 1174config ISA_DMA_API 1175 bool 1176 1177config HOLES_IN_ZONE 1178 bool 1179 1180config SYS_SUPPORTS_RELOCATABLE 1181 bool 1182 help 1183 Selected if the platform supports relocating the kernel. 1184 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1185 to allow access to command line and entropy sources. 1186 1187config MIPS_CBPF_JIT 1188 def_bool y 1189 depends on BPF_JIT && HAVE_CBPF_JIT 1190 1191config MIPS_EBPF_JIT 1192 def_bool y 1193 depends on BPF_JIT && HAVE_EBPF_JIT 1194 1195 1196# 1197# Endianness selection. Sufficiently obscure so many users don't know what to 1198# answer,so we try hard to limit the available choices. Also the use of a 1199# choice statement should be more obvious to the user. 1200# 1201choice 1202 prompt "Endianness selection" 1203 help 1204 Some MIPS machines can be configured for either little or big endian 1205 byte order. These modes require different kernels and a different 1206 Linux distribution. In general there is one preferred byteorder for a 1207 particular system but some systems are just as commonly used in the 1208 one or the other endianness. 1209 1210config CPU_BIG_ENDIAN 1211 bool "Big endian" 1212 depends on SYS_SUPPORTS_BIG_ENDIAN 1213 1214config CPU_LITTLE_ENDIAN 1215 bool "Little endian" 1216 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1217 1218endchoice 1219 1220config EXPORT_UASM 1221 bool 1222 1223config SYS_SUPPORTS_APM_EMULATION 1224 bool 1225 1226config SYS_SUPPORTS_BIG_ENDIAN 1227 bool 1228 1229config SYS_SUPPORTS_LITTLE_ENDIAN 1230 bool 1231 1232config SYS_SUPPORTS_HUGETLBFS 1233 bool 1234 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1235 default y 1236 1237config MIPS_HUGE_TLB_SUPPORT 1238 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1239 1240config IRQ_CPU_RM7K 1241 bool 1242 1243config IRQ_MSP_SLP 1244 bool 1245 1246config IRQ_MSP_CIC 1247 bool 1248 1249config IRQ_TXX9 1250 bool 1251 1252config IRQ_GT641XX 1253 bool 1254 1255config PCI_GT64XXX_PCI0 1256 bool 1257 1258config NO_EXCEPT_FILL 1259 bool 1260 1261config SOC_EMMA2RH 1262 bool 1263 select CEVT_R4K 1264 select CSRC_R4K 1265 select DMA_NONCOHERENT 1266 select IRQ_MIPS_CPU 1267 select SWAP_IO_SPACE 1268 select SYS_HAS_CPU_R5500 1269 select SYS_SUPPORTS_32BIT_KERNEL 1270 select SYS_SUPPORTS_64BIT_KERNEL 1271 select SYS_SUPPORTS_BIG_ENDIAN 1272 1273config SOC_PNX833X 1274 bool 1275 select CEVT_R4K 1276 select CSRC_R4K 1277 select IRQ_MIPS_CPU 1278 select DMA_NONCOHERENT 1279 select SYS_HAS_CPU_MIPS32_R2 1280 select SYS_SUPPORTS_32BIT_KERNEL 1281 select SYS_SUPPORTS_LITTLE_ENDIAN 1282 select SYS_SUPPORTS_BIG_ENDIAN 1283 select SYS_SUPPORTS_MIPS16 1284 select CPU_MIPSR2_IRQ_VI 1285 1286config SOC_PNX8335 1287 bool 1288 select SOC_PNX833X 1289 1290config MIPS_SPRAM 1291 bool 1292 1293config SWAP_IO_SPACE 1294 bool 1295 1296config SGI_HAS_INDYDOG 1297 bool 1298 1299config SGI_HAS_HAL2 1300 bool 1301 1302config SGI_HAS_SEEQ 1303 bool 1304 1305config SGI_HAS_WD93 1306 bool 1307 1308config SGI_HAS_ZILOG 1309 bool 1310 1311config SGI_HAS_I8042 1312 bool 1313 1314config DEFAULT_SGI_PARTITION 1315 bool 1316 1317config FW_ARC32 1318 bool 1319 1320config FW_SNIPROM 1321 bool 1322 1323config BOOT_ELF32 1324 bool 1325 1326config MIPS_L1_CACHE_SHIFT_4 1327 bool 1328 1329config MIPS_L1_CACHE_SHIFT_5 1330 bool 1331 1332config MIPS_L1_CACHE_SHIFT_6 1333 bool 1334 1335config MIPS_L1_CACHE_SHIFT_7 1336 bool 1337 1338config MIPS_L1_CACHE_SHIFT 1339 int 1340 default "7" if MIPS_L1_CACHE_SHIFT_7 1341 default "6" if MIPS_L1_CACHE_SHIFT_6 1342 default "5" if MIPS_L1_CACHE_SHIFT_5 1343 default "4" if MIPS_L1_CACHE_SHIFT_4 1344 default "5" 1345 1346config HAVE_STD_PC_SERIAL_PORT 1347 bool 1348 1349config ARC_CONSOLE 1350 bool "ARC console support" 1351 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1352 1353config ARC_MEMORY 1354 bool 1355 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1356 default y 1357 1358config ARC_PROMLIB 1359 bool 1360 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1361 default y 1362 1363config FW_ARC64 1364 bool 1365 1366config BOOT_ELF64 1367 bool 1368 1369menu "CPU selection" 1370 1371choice 1372 prompt "CPU type" 1373 default CPU_R4X00 1374 1375config CPU_LOONGSON3 1376 bool "Loongson 3 CPU" 1377 depends on SYS_HAS_CPU_LOONGSON3 1378 select ARCH_HAS_PHYS_TO_DMA 1379 select CPU_SUPPORTS_64BIT_KERNEL 1380 select CPU_SUPPORTS_HIGHMEM 1381 select CPU_SUPPORTS_HUGEPAGES 1382 select WEAK_ORDERING 1383 select WEAK_REORDERING_BEYOND_LLSC 1384 select MIPS_PGD_C0_CONTEXT 1385 select MIPS_L1_CACHE_SHIFT_6 1386 select GPIOLIB 1387 select SWIOTLB 1388 help 1389 The Loongson 3 processor implements the MIPS64R2 instruction 1390 set with many extensions. 1391 1392config LOONGSON3_ENHANCEMENT 1393 bool "New Loongson 3 CPU Enhancements" 1394 default n 1395 select CPU_MIPSR2 1396 select CPU_HAS_PREFETCH 1397 depends on CPU_LOONGSON3 1398 help 1399 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1400 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1401 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1402 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1403 Fast TLB refill support, etc. 1404 1405 This option enable those enhancements which are not probed at run 1406 time. If you want a generic kernel to run on all Loongson 3 machines, 1407 please say 'N' here. If you want a high-performance kernel to run on 1408 new Loongson 3 machines only, please say 'Y' here. 1409 1410config CPU_LOONGSON2E 1411 bool "Loongson 2E" 1412 depends on SYS_HAS_CPU_LOONGSON2E 1413 select CPU_LOONGSON2 1414 help 1415 The Loongson 2E processor implements the MIPS III instruction set 1416 with many extensions. 1417 1418 It has an internal FPGA northbridge, which is compatible to 1419 bonito64. 1420 1421config CPU_LOONGSON2F 1422 bool "Loongson 2F" 1423 depends on SYS_HAS_CPU_LOONGSON2F 1424 select CPU_LOONGSON2 1425 select GPIOLIB 1426 help 1427 The Loongson 2F processor implements the MIPS III instruction set 1428 with many extensions. 1429 1430 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1431 have a similar programming interface with FPGA northbridge used in 1432 Loongson2E. 1433 1434config CPU_LOONGSON1B 1435 bool "Loongson 1B" 1436 depends on SYS_HAS_CPU_LOONGSON1B 1437 select CPU_LOONGSON1 1438 select LEDS_GPIO_REGISTER 1439 help 1440 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1441 release 2 instruction set. 1442 1443config CPU_LOONGSON1C 1444 bool "Loongson 1C" 1445 depends on SYS_HAS_CPU_LOONGSON1C 1446 select CPU_LOONGSON1 1447 select LEDS_GPIO_REGISTER 1448 help 1449 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1450 release 2 instruction set. 1451 1452config CPU_MIPS32_R1 1453 bool "MIPS32 Release 1" 1454 depends on SYS_HAS_CPU_MIPS32_R1 1455 select CPU_HAS_PREFETCH 1456 select CPU_SUPPORTS_32BIT_KERNEL 1457 select CPU_SUPPORTS_HIGHMEM 1458 help 1459 Choose this option to build a kernel for release 1 or later of the 1460 MIPS32 architecture. Most modern embedded systems with a 32-bit 1461 MIPS processor are based on a MIPS32 processor. If you know the 1462 specific type of processor in your system, choose those that one 1463 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1464 Release 2 of the MIPS32 architecture is available since several 1465 years so chances are you even have a MIPS32 Release 2 processor 1466 in which case you should choose CPU_MIPS32_R2 instead for better 1467 performance. 1468 1469config CPU_MIPS32_R2 1470 bool "MIPS32 Release 2" 1471 depends on SYS_HAS_CPU_MIPS32_R2 1472 select CPU_HAS_PREFETCH 1473 select CPU_SUPPORTS_32BIT_KERNEL 1474 select CPU_SUPPORTS_HIGHMEM 1475 select CPU_SUPPORTS_MSA 1476 select HAVE_KVM 1477 help 1478 Choose this option to build a kernel for release 2 or later of the 1479 MIPS32 architecture. Most modern embedded systems with a 32-bit 1480 MIPS processor are based on a MIPS32 processor. If you know the 1481 specific type of processor in your system, choose those that one 1482 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1483 1484config CPU_MIPS32_R6 1485 bool "MIPS32 Release 6" 1486 depends on SYS_HAS_CPU_MIPS32_R6 1487 select CPU_HAS_PREFETCH 1488 select CPU_SUPPORTS_32BIT_KERNEL 1489 select CPU_SUPPORTS_HIGHMEM 1490 select CPU_SUPPORTS_MSA 1491 select GENERIC_CSUM 1492 select HAVE_KVM 1493 select MIPS_O32_FP64_SUPPORT 1494 help 1495 Choose this option to build a kernel for release 6 or later of the 1496 MIPS32 architecture. New MIPS processors, starting with the Warrior 1497 family, are based on a MIPS32r6 processor. If you own an older 1498 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1499 1500config CPU_MIPS64_R1 1501 bool "MIPS64 Release 1" 1502 depends on SYS_HAS_CPU_MIPS64_R1 1503 select CPU_HAS_PREFETCH 1504 select CPU_SUPPORTS_32BIT_KERNEL 1505 select CPU_SUPPORTS_64BIT_KERNEL 1506 select CPU_SUPPORTS_HIGHMEM 1507 select CPU_SUPPORTS_HUGEPAGES 1508 help 1509 Choose this option to build a kernel for release 1 or later of the 1510 MIPS64 architecture. Many modern embedded systems with a 64-bit 1511 MIPS processor are based on a MIPS64 processor. If you know the 1512 specific type of processor in your system, choose those that one 1513 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1514 Release 2 of the MIPS64 architecture is available since several 1515 years so chances are you even have a MIPS64 Release 2 processor 1516 in which case you should choose CPU_MIPS64_R2 instead for better 1517 performance. 1518 1519config CPU_MIPS64_R2 1520 bool "MIPS64 Release 2" 1521 depends on SYS_HAS_CPU_MIPS64_R2 1522 select CPU_HAS_PREFETCH 1523 select CPU_SUPPORTS_32BIT_KERNEL 1524 select CPU_SUPPORTS_64BIT_KERNEL 1525 select CPU_SUPPORTS_HIGHMEM 1526 select CPU_SUPPORTS_HUGEPAGES 1527 select CPU_SUPPORTS_MSA 1528 select HAVE_KVM 1529 help 1530 Choose this option to build a kernel for release 2 or later of the 1531 MIPS64 architecture. Many modern embedded systems with a 64-bit 1532 MIPS processor are based on a MIPS64 processor. If you know the 1533 specific type of processor in your system, choose those that one 1534 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1535 1536config CPU_MIPS64_R6 1537 bool "MIPS64 Release 6" 1538 depends on SYS_HAS_CPU_MIPS64_R6 1539 select CPU_HAS_PREFETCH 1540 select CPU_SUPPORTS_32BIT_KERNEL 1541 select CPU_SUPPORTS_64BIT_KERNEL 1542 select CPU_SUPPORTS_HIGHMEM 1543 select CPU_SUPPORTS_MSA 1544 select GENERIC_CSUM 1545 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1546 select HAVE_KVM 1547 help 1548 Choose this option to build a kernel for release 6 or later of the 1549 MIPS64 architecture. New MIPS processors, starting with the Warrior 1550 family, are based on a MIPS64r6 processor. If you own an older 1551 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1552 1553config CPU_R3000 1554 bool "R3000" 1555 depends on SYS_HAS_CPU_R3000 1556 select CPU_HAS_WB 1557 select CPU_SUPPORTS_32BIT_KERNEL 1558 select CPU_SUPPORTS_HIGHMEM 1559 help 1560 Please make sure to pick the right CPU type. Linux/MIPS is not 1561 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1562 *not* work on R4000 machines and vice versa. However, since most 1563 of the supported machines have an R4000 (or similar) CPU, R4x00 1564 might be a safe bet. If the resulting kernel does not work, 1565 try to recompile with R3000. 1566 1567config CPU_TX39XX 1568 bool "R39XX" 1569 depends on SYS_HAS_CPU_TX39XX 1570 select CPU_SUPPORTS_32BIT_KERNEL 1571 1572config CPU_VR41XX 1573 bool "R41xx" 1574 depends on SYS_HAS_CPU_VR41XX 1575 select CPU_SUPPORTS_32BIT_KERNEL 1576 select CPU_SUPPORTS_64BIT_KERNEL 1577 help 1578 The options selects support for the NEC VR4100 series of processors. 1579 Only choose this option if you have one of these processors as a 1580 kernel built with this option will not run on any other type of 1581 processor or vice versa. 1582 1583config CPU_R4300 1584 bool "R4300" 1585 depends on SYS_HAS_CPU_R4300 1586 select CPU_SUPPORTS_32BIT_KERNEL 1587 select CPU_SUPPORTS_64BIT_KERNEL 1588 help 1589 MIPS Technologies R4300-series processors. 1590 1591config CPU_R4X00 1592 bool "R4x00" 1593 depends on SYS_HAS_CPU_R4X00 1594 select CPU_SUPPORTS_32BIT_KERNEL 1595 select CPU_SUPPORTS_64BIT_KERNEL 1596 select CPU_SUPPORTS_HUGEPAGES 1597 help 1598 MIPS Technologies R4000-series processors other than 4300, including 1599 the R4000, R4400, R4600, and 4700. 1600 1601config CPU_TX49XX 1602 bool "R49XX" 1603 depends on SYS_HAS_CPU_TX49XX 1604 select CPU_HAS_PREFETCH 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 help 1616 MIPS Technologies R5000-series processors other than the Nevada. 1617 1618config CPU_R5432 1619 bool "R5432" 1620 depends on SYS_HAS_CPU_R5432 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_64BIT_KERNEL 1623 select CPU_SUPPORTS_HUGEPAGES 1624 1625config CPU_R5500 1626 bool "R5500" 1627 depends on SYS_HAS_CPU_R5500 1628 select CPU_SUPPORTS_32BIT_KERNEL 1629 select CPU_SUPPORTS_64BIT_KERNEL 1630 select CPU_SUPPORTS_HUGEPAGES 1631 help 1632 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1633 instruction set. 1634 1635config CPU_NEVADA 1636 bool "RM52xx" 1637 depends on SYS_HAS_CPU_NEVADA 1638 select CPU_SUPPORTS_32BIT_KERNEL 1639 select CPU_SUPPORTS_64BIT_KERNEL 1640 select CPU_SUPPORTS_HUGEPAGES 1641 help 1642 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1643 1644config CPU_R8000 1645 bool "R8000" 1646 depends on SYS_HAS_CPU_R8000 1647 select CPU_HAS_PREFETCH 1648 select CPU_SUPPORTS_64BIT_KERNEL 1649 help 1650 MIPS Technologies R8000 processors. Note these processors are 1651 uncommon and the support for them is incomplete. 1652 1653config CPU_R10000 1654 bool "R10000" 1655 depends on SYS_HAS_CPU_R10000 1656 select CPU_HAS_PREFETCH 1657 select CPU_SUPPORTS_32BIT_KERNEL 1658 select CPU_SUPPORTS_64BIT_KERNEL 1659 select CPU_SUPPORTS_HIGHMEM 1660 select CPU_SUPPORTS_HUGEPAGES 1661 help 1662 MIPS Technologies R10000-series processors. 1663 1664config CPU_RM7000 1665 bool "RM7000" 1666 depends on SYS_HAS_CPU_RM7000 1667 select CPU_HAS_PREFETCH 1668 select CPU_SUPPORTS_32BIT_KERNEL 1669 select CPU_SUPPORTS_64BIT_KERNEL 1670 select CPU_SUPPORTS_HIGHMEM 1671 select CPU_SUPPORTS_HUGEPAGES 1672 1673config CPU_SB1 1674 bool "SB1" 1675 depends on SYS_HAS_CPU_SB1 1676 select CPU_SUPPORTS_32BIT_KERNEL 1677 select CPU_SUPPORTS_64BIT_KERNEL 1678 select CPU_SUPPORTS_HIGHMEM 1679 select CPU_SUPPORTS_HUGEPAGES 1680 select WEAK_ORDERING 1681 1682config CPU_CAVIUM_OCTEON 1683 bool "Cavium Octeon processor" 1684 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1685 select CPU_HAS_PREFETCH 1686 select CPU_SUPPORTS_64BIT_KERNEL 1687 select WEAK_ORDERING 1688 select CPU_SUPPORTS_HIGHMEM 1689 select CPU_SUPPORTS_HUGEPAGES 1690 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1691 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1692 select MIPS_L1_CACHE_SHIFT_7 1693 select HAVE_KVM 1694 help 1695 The Cavium Octeon processor is a highly integrated chip containing 1696 many ethernet hardware widgets for networking tasks. The processor 1697 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1698 Full details can be found at http://www.caviumnetworks.com. 1699 1700config CPU_BMIPS 1701 bool "Broadcom BMIPS" 1702 depends on SYS_HAS_CPU_BMIPS 1703 select CPU_MIPS32 1704 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1705 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1706 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1707 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1708 select CPU_SUPPORTS_32BIT_KERNEL 1709 select DMA_NONCOHERENT 1710 select IRQ_MIPS_CPU 1711 select SWAP_IO_SPACE 1712 select WEAK_ORDERING 1713 select CPU_SUPPORTS_HIGHMEM 1714 select CPU_HAS_PREFETCH 1715 select CPU_SUPPORTS_CPUFREQ 1716 select MIPS_EXTERNAL_TIMER 1717 help 1718 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1719 1720config CPU_XLR 1721 bool "Netlogic XLR SoC" 1722 depends on SYS_HAS_CPU_XLR 1723 select CPU_SUPPORTS_32BIT_KERNEL 1724 select CPU_SUPPORTS_64BIT_KERNEL 1725 select CPU_SUPPORTS_HIGHMEM 1726 select CPU_SUPPORTS_HUGEPAGES 1727 select WEAK_ORDERING 1728 select WEAK_REORDERING_BEYOND_LLSC 1729 help 1730 Netlogic Microsystems XLR/XLS processors. 1731 1732config CPU_XLP 1733 bool "Netlogic XLP SoC" 1734 depends on SYS_HAS_CPU_XLP 1735 select CPU_SUPPORTS_32BIT_KERNEL 1736 select CPU_SUPPORTS_64BIT_KERNEL 1737 select CPU_SUPPORTS_HIGHMEM 1738 select WEAK_ORDERING 1739 select WEAK_REORDERING_BEYOND_LLSC 1740 select CPU_HAS_PREFETCH 1741 select CPU_MIPSR2 1742 select CPU_SUPPORTS_HUGEPAGES 1743 select MIPS_ASID_BITS_VARIABLE 1744 help 1745 Netlogic Microsystems XLP processors. 1746endchoice 1747 1748config CPU_MIPS32_3_5_FEATURES 1749 bool "MIPS32 Release 3.5 Features" 1750 depends on SYS_HAS_CPU_MIPS32_R3_5 1751 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1752 help 1753 Choose this option to build a kernel for release 2 or later of the 1754 MIPS32 architecture including features from the 3.5 release such as 1755 support for Enhanced Virtual Addressing (EVA). 1756 1757config CPU_MIPS32_3_5_EVA 1758 bool "Enhanced Virtual Addressing (EVA)" 1759 depends on CPU_MIPS32_3_5_FEATURES 1760 select EVA 1761 default y 1762 help 1763 Choose this option if you want to enable the Enhanced Virtual 1764 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1765 One of its primary benefits is an increase in the maximum size 1766 of lowmem (up to 3GB). If unsure, say 'N' here. 1767 1768config CPU_MIPS32_R5_FEATURES 1769 bool "MIPS32 Release 5 Features" 1770 depends on SYS_HAS_CPU_MIPS32_R5 1771 depends on CPU_MIPS32_R2 1772 help 1773 Choose this option to build a kernel for release 2 or later of the 1774 MIPS32 architecture including features from release 5 such as 1775 support for Extended Physical Addressing (XPA). 1776 1777config CPU_MIPS32_R5_XPA 1778 bool "Extended Physical Addressing (XPA)" 1779 depends on CPU_MIPS32_R5_FEATURES 1780 depends on !EVA 1781 depends on !PAGE_SIZE_4KB 1782 depends on SYS_SUPPORTS_HIGHMEM 1783 select XPA 1784 select HIGHMEM 1785 select PHYS_ADDR_T_64BIT 1786 default n 1787 help 1788 Choose this option if you want to enable the Extended Physical 1789 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1790 benefit is to increase physical addressing equal to or greater 1791 than 40 bits. Note that this has the side effect of turning on 1792 64-bit addressing which in turn makes the PTEs 64-bit in size. 1793 If unsure, say 'N' here. 1794 1795if CPU_LOONGSON2F 1796config CPU_NOP_WORKAROUNDS 1797 bool 1798 1799config CPU_JUMP_WORKAROUNDS 1800 bool 1801 1802config CPU_LOONGSON2F_WORKAROUNDS 1803 bool "Loongson 2F Workarounds" 1804 default y 1805 select CPU_NOP_WORKAROUNDS 1806 select CPU_JUMP_WORKAROUNDS 1807 help 1808 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1809 require workarounds. Without workarounds the system may hang 1810 unexpectedly. For more information please refer to the gas 1811 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1812 1813 Loongson 2F03 and later have fixed these issues and no workarounds 1814 are needed. The workarounds have no significant side effect on them 1815 but may decrease the performance of the system so this option should 1816 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1817 systems. 1818 1819 If unsure, please say Y. 1820endif # CPU_LOONGSON2F 1821 1822config SYS_SUPPORTS_ZBOOT 1823 bool 1824 select HAVE_KERNEL_GZIP 1825 select HAVE_KERNEL_BZIP2 1826 select HAVE_KERNEL_LZ4 1827 select HAVE_KERNEL_LZMA 1828 select HAVE_KERNEL_LZO 1829 select HAVE_KERNEL_XZ 1830 1831config SYS_SUPPORTS_ZBOOT_UART16550 1832 bool 1833 select SYS_SUPPORTS_ZBOOT 1834 1835config SYS_SUPPORTS_ZBOOT_UART_PROM 1836 bool 1837 select SYS_SUPPORTS_ZBOOT 1838 1839config CPU_LOONGSON2 1840 bool 1841 select CPU_SUPPORTS_32BIT_KERNEL 1842 select CPU_SUPPORTS_64BIT_KERNEL 1843 select CPU_SUPPORTS_HIGHMEM 1844 select CPU_SUPPORTS_HUGEPAGES 1845 1846config CPU_LOONGSON1 1847 bool 1848 select CPU_MIPS32 1849 select CPU_MIPSR2 1850 select CPU_HAS_PREFETCH 1851 select CPU_SUPPORTS_32BIT_KERNEL 1852 select CPU_SUPPORTS_HIGHMEM 1853 select CPU_SUPPORTS_CPUFREQ 1854 1855config CPU_BMIPS32_3300 1856 select SMP_UP if SMP 1857 bool 1858 1859config CPU_BMIPS4350 1860 bool 1861 select SYS_SUPPORTS_SMP 1862 select SYS_SUPPORTS_HOTPLUG_CPU 1863 1864config CPU_BMIPS4380 1865 bool 1866 select MIPS_L1_CACHE_SHIFT_6 1867 select SYS_SUPPORTS_SMP 1868 select SYS_SUPPORTS_HOTPLUG_CPU 1869 select CPU_HAS_RIXI 1870 1871config CPU_BMIPS5000 1872 bool 1873 select MIPS_CPU_SCACHE 1874 select MIPS_L1_CACHE_SHIFT_7 1875 select SYS_SUPPORTS_SMP 1876 select SYS_SUPPORTS_HOTPLUG_CPU 1877 select CPU_HAS_RIXI 1878 1879config SYS_HAS_CPU_LOONGSON3 1880 bool 1881 select CPU_SUPPORTS_CPUFREQ 1882 select CPU_HAS_RIXI 1883 1884config SYS_HAS_CPU_LOONGSON2E 1885 bool 1886 1887config SYS_HAS_CPU_LOONGSON2F 1888 bool 1889 select CPU_SUPPORTS_CPUFREQ 1890 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1891 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1892 1893config SYS_HAS_CPU_LOONGSON1B 1894 bool 1895 1896config SYS_HAS_CPU_LOONGSON1C 1897 bool 1898 1899config SYS_HAS_CPU_MIPS32_R1 1900 bool 1901 1902config SYS_HAS_CPU_MIPS32_R2 1903 bool 1904 1905config SYS_HAS_CPU_MIPS32_R3_5 1906 bool 1907 1908config SYS_HAS_CPU_MIPS32_R5 1909 bool 1910 1911config SYS_HAS_CPU_MIPS32_R6 1912 bool 1913 1914config SYS_HAS_CPU_MIPS64_R1 1915 bool 1916 1917config SYS_HAS_CPU_MIPS64_R2 1918 bool 1919 1920config SYS_HAS_CPU_MIPS64_R6 1921 bool 1922 1923config SYS_HAS_CPU_R3000 1924 bool 1925 1926config SYS_HAS_CPU_TX39XX 1927 bool 1928 1929config SYS_HAS_CPU_VR41XX 1930 bool 1931 1932config SYS_HAS_CPU_R4300 1933 bool 1934 1935config SYS_HAS_CPU_R4X00 1936 bool 1937 1938config SYS_HAS_CPU_TX49XX 1939 bool 1940 1941config SYS_HAS_CPU_R5000 1942 bool 1943 1944config SYS_HAS_CPU_R5432 1945 bool 1946 1947config SYS_HAS_CPU_R5500 1948 bool 1949 1950config SYS_HAS_CPU_NEVADA 1951 bool 1952 1953config SYS_HAS_CPU_R8000 1954 bool 1955 1956config SYS_HAS_CPU_R10000 1957 bool 1958 1959config SYS_HAS_CPU_RM7000 1960 bool 1961 1962config SYS_HAS_CPU_SB1 1963 bool 1964 1965config SYS_HAS_CPU_CAVIUM_OCTEON 1966 bool 1967 1968config SYS_HAS_CPU_BMIPS 1969 bool 1970 1971config SYS_HAS_CPU_BMIPS32_3300 1972 bool 1973 select SYS_HAS_CPU_BMIPS 1974 1975config SYS_HAS_CPU_BMIPS4350 1976 bool 1977 select SYS_HAS_CPU_BMIPS 1978 1979config SYS_HAS_CPU_BMIPS4380 1980 bool 1981 select SYS_HAS_CPU_BMIPS 1982 1983config SYS_HAS_CPU_BMIPS5000 1984 bool 1985 select SYS_HAS_CPU_BMIPS 1986 1987config SYS_HAS_CPU_XLR 1988 bool 1989 1990config SYS_HAS_CPU_XLP 1991 bool 1992 1993config MIPS_MALTA_PM 1994 depends on MIPS_MALTA 1995 depends on PCI 1996 bool 1997 default y 1998 1999# 2000# CPU may reorder R->R, R->W, W->R, W->W 2001# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2002# 2003config WEAK_ORDERING 2004 bool 2005 2006# 2007# CPU may reorder reads and writes beyond LL/SC 2008# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2009# 2010config WEAK_REORDERING_BEYOND_LLSC 2011 bool 2012endmenu 2013 2014# 2015# These two indicate any level of the MIPS32 and MIPS64 architecture 2016# 2017config CPU_MIPS32 2018 bool 2019 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2020 2021config CPU_MIPS64 2022 bool 2023 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2024 2025# 2026# These two indicate the revision of the architecture, either Release 1 or Release 2 2027# 2028config CPU_MIPSR1 2029 bool 2030 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2031 2032config CPU_MIPSR2 2033 bool 2034 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2035 select CPU_HAS_RIXI 2036 select MIPS_SPRAM 2037 2038config CPU_MIPSR6 2039 bool 2040 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2041 select CPU_HAS_RIXI 2042 select HAVE_ARCH_BITREVERSE 2043 select MIPS_ASID_BITS_VARIABLE 2044 select MIPS_CRC_SUPPORT 2045 select MIPS_SPRAM 2046 2047config EVA 2048 bool 2049 2050config XPA 2051 bool 2052 2053config SYS_SUPPORTS_32BIT_KERNEL 2054 bool 2055config SYS_SUPPORTS_64BIT_KERNEL 2056 bool 2057config CPU_SUPPORTS_32BIT_KERNEL 2058 bool 2059config CPU_SUPPORTS_64BIT_KERNEL 2060 bool 2061config CPU_SUPPORTS_CPUFREQ 2062 bool 2063config CPU_SUPPORTS_ADDRWINCFG 2064 bool 2065config CPU_SUPPORTS_HUGEPAGES 2066 bool 2067config CPU_SUPPORTS_UNCACHED_ACCELERATED 2068 bool 2069config MIPS_PGD_C0_CONTEXT 2070 bool 2071 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2072 2073# 2074# Set to y for ptrace access to watch registers. 2075# 2076config HARDWARE_WATCHPOINTS 2077 bool 2078 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2079 2080menu "Kernel type" 2081 2082choice 2083 prompt "Kernel code model" 2084 help 2085 You should only select this option if you have a workload that 2086 actually benefits from 64-bit processing or if your machine has 2087 large memory. You will only be presented a single option in this 2088 menu if your system does not support both 32-bit and 64-bit kernels. 2089 2090config 32BIT 2091 bool "32-bit kernel" 2092 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2093 select TRAD_SIGNALS 2094 help 2095 Select this option if you want to build a 32-bit kernel. 2096 2097config 64BIT 2098 bool "64-bit kernel" 2099 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2100 help 2101 Select this option if you want to build a 64-bit kernel. 2102 2103endchoice 2104 2105config KVM_GUEST 2106 bool "KVM Guest Kernel" 2107 depends on BROKEN_ON_SMP 2108 help 2109 Select this option if building a guest kernel for KVM (Trap & Emulate) 2110 mode. 2111 2112config KVM_GUEST_TIMER_FREQ 2113 int "Count/Compare Timer Frequency (MHz)" 2114 depends on KVM_GUEST 2115 default 100 2116 help 2117 Set this to non-zero if building a guest kernel for KVM to skip RTC 2118 emulation when determining guest CPU Frequency. Instead, the guest's 2119 timer frequency is specified directly. 2120 2121config MIPS_VA_BITS_48 2122 bool "48 bits virtual memory" 2123 depends on 64BIT 2124 help 2125 Support a maximum at least 48 bits of application virtual 2126 memory. Default is 40 bits or less, depending on the CPU. 2127 For page sizes 16k and above, this option results in a small 2128 memory overhead for page tables. For 4k page size, a fourth 2129 level of page tables is added which imposes both a memory 2130 overhead as well as slower TLB fault handling. 2131 2132 If unsure, say N. 2133 2134choice 2135 prompt "Kernel page size" 2136 default PAGE_SIZE_4KB 2137 2138config PAGE_SIZE_4KB 2139 bool "4kB" 2140 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2141 help 2142 This option select the standard 4kB Linux page size. On some 2143 R3000-family processors this is the only available page size. Using 2144 4kB page size will minimize memory consumption and is therefore 2145 recommended for low memory systems. 2146 2147config PAGE_SIZE_8KB 2148 bool "8kB" 2149 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2150 depends on !MIPS_VA_BITS_48 2151 help 2152 Using 8kB page size will result in higher performance kernel at 2153 the price of higher memory consumption. This option is available 2154 only on R8000 and cnMIPS processors. Note that you will need a 2155 suitable Linux distribution to support this. 2156 2157config PAGE_SIZE_16KB 2158 bool "16kB" 2159 depends on !CPU_R3000 && !CPU_TX39XX 2160 help 2161 Using 16kB page size will result in higher performance kernel at 2162 the price of higher memory consumption. This option is available on 2163 all non-R3000 family processors. Note that you will need a suitable 2164 Linux distribution to support this. 2165 2166config PAGE_SIZE_32KB 2167 bool "32kB" 2168 depends on CPU_CAVIUM_OCTEON 2169 depends on !MIPS_VA_BITS_48 2170 help 2171 Using 32kB page size will result in higher performance kernel at 2172 the price of higher memory consumption. This option is available 2173 only on cnMIPS cores. Note that you will need a suitable Linux 2174 distribution to support this. 2175 2176config PAGE_SIZE_64KB 2177 bool "64kB" 2178 depends on !CPU_R3000 && !CPU_TX39XX 2179 help 2180 Using 64kB page size will result in higher performance kernel at 2181 the price of higher memory consumption. This option is available on 2182 all non-R3000 family processor. Not that at the time of this 2183 writing this option is still high experimental. 2184 2185endchoice 2186 2187config FORCE_MAX_ZONEORDER 2188 int "Maximum zone order" 2189 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2190 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2191 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2192 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2193 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2194 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2195 range 11 64 2196 default "11" 2197 help 2198 The kernel memory allocator divides physically contiguous memory 2199 blocks into "zones", where each zone is a power of two number of 2200 pages. This option selects the largest power of two that the kernel 2201 keeps in the memory allocator. If you need to allocate very large 2202 blocks of physically contiguous memory, then you may need to 2203 increase this value. 2204 2205 This config option is actually maximum order plus one. For example, 2206 a value of 11 means that the largest free memory block is 2^10 pages. 2207 2208 The page size is not necessarily 4KB. Keep this in mind 2209 when choosing a value for this option. 2210 2211config BOARD_SCACHE 2212 bool 2213 2214config IP22_CPU_SCACHE 2215 bool 2216 select BOARD_SCACHE 2217 2218# 2219# Support for a MIPS32 / MIPS64 style S-caches 2220# 2221config MIPS_CPU_SCACHE 2222 bool 2223 select BOARD_SCACHE 2224 2225config R5000_CPU_SCACHE 2226 bool 2227 select BOARD_SCACHE 2228 2229config RM7000_CPU_SCACHE 2230 bool 2231 select BOARD_SCACHE 2232 2233config SIBYTE_DMA_PAGEOPS 2234 bool "Use DMA to clear/copy pages" 2235 depends on CPU_SB1 2236 help 2237 Instead of using the CPU to zero and copy pages, use a Data Mover 2238 channel. These DMA channels are otherwise unused by the standard 2239 SiByte Linux port. Seems to give a small performance benefit. 2240 2241config CPU_HAS_PREFETCH 2242 bool 2243 2244config CPU_GENERIC_DUMP_TLB 2245 bool 2246 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2247 2248config CPU_R4K_FPU 2249 bool 2250 default y if !(CPU_R3000 || CPU_TX39XX) 2251 2252config CPU_R4K_CACHE_TLB 2253 bool 2254 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2255 2256config MIPS_MT_SMP 2257 bool "MIPS MT SMP support (1 TC on each available VPE)" 2258 default y 2259 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2260 select CPU_MIPSR2_IRQ_VI 2261 select CPU_MIPSR2_IRQ_EI 2262 select SYNC_R4K 2263 select MIPS_MT 2264 select SMP 2265 select SMP_UP 2266 select SYS_SUPPORTS_SMP 2267 select SYS_SUPPORTS_SCHED_SMT 2268 select MIPS_PERF_SHARED_TC_COUNTERS 2269 help 2270 This is a kernel model which is known as SMVP. This is supported 2271 on cores with the MT ASE and uses the available VPEs to implement 2272 virtual processors which supports SMP. This is equivalent to the 2273 Intel Hyperthreading feature. For further information go to 2274 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2275 2276config MIPS_MT 2277 bool 2278 2279config SCHED_SMT 2280 bool "SMT (multithreading) scheduler support" 2281 depends on SYS_SUPPORTS_SCHED_SMT 2282 default n 2283 help 2284 SMT scheduler support improves the CPU scheduler's decision making 2285 when dealing with MIPS MT enabled cores at a cost of slightly 2286 increased overhead in some places. If unsure say N here. 2287 2288config SYS_SUPPORTS_SCHED_SMT 2289 bool 2290 2291config SYS_SUPPORTS_MULTITHREADING 2292 bool 2293 2294config MIPS_MT_FPAFF 2295 bool "Dynamic FPU affinity for FP-intensive threads" 2296 default y 2297 depends on MIPS_MT_SMP 2298 2299config MIPSR2_TO_R6_EMULATOR 2300 bool "MIPS R2-to-R6 emulator" 2301 depends on CPU_MIPSR6 2302 default y 2303 help 2304 Choose this option if you want to run non-R6 MIPS userland code. 2305 Even if you say 'Y' here, the emulator will still be disabled by 2306 default. You can enable it using the 'mipsr2emu' kernel option. 2307 The only reason this is a build-time option is to save ~14K from the 2308 final kernel image. 2309 2310config SYS_SUPPORTS_VPE_LOADER 2311 bool 2312 depends on SYS_SUPPORTS_MULTITHREADING 2313 help 2314 Indicates that the platform supports the VPE loader, and provides 2315 physical_memsize. 2316 2317config MIPS_VPE_LOADER 2318 bool "VPE loader support." 2319 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2320 select CPU_MIPSR2_IRQ_VI 2321 select CPU_MIPSR2_IRQ_EI 2322 select MIPS_MT 2323 help 2324 Includes a loader for loading an elf relocatable object 2325 onto another VPE and running it. 2326 2327config MIPS_VPE_LOADER_CMP 2328 bool 2329 default "y" 2330 depends on MIPS_VPE_LOADER && MIPS_CMP 2331 2332config MIPS_VPE_LOADER_MT 2333 bool 2334 default "y" 2335 depends on MIPS_VPE_LOADER && !MIPS_CMP 2336 2337config MIPS_VPE_LOADER_TOM 2338 bool "Load VPE program into memory hidden from linux" 2339 depends on MIPS_VPE_LOADER 2340 default y 2341 help 2342 The loader can use memory that is present but has been hidden from 2343 Linux using the kernel command line option "mem=xxMB". It's up to 2344 you to ensure the amount you put in the option and the space your 2345 program requires is less or equal to the amount physically present. 2346 2347config MIPS_VPE_APSP_API 2348 bool "Enable support for AP/SP API (RTLX)" 2349 depends on MIPS_VPE_LOADER 2350 2351config MIPS_VPE_APSP_API_CMP 2352 bool 2353 default "y" 2354 depends on MIPS_VPE_APSP_API && MIPS_CMP 2355 2356config MIPS_VPE_APSP_API_MT 2357 bool 2358 default "y" 2359 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2360 2361config MIPS_CMP 2362 bool "MIPS CMP framework support (DEPRECATED)" 2363 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2364 select SMP 2365 select SYNC_R4K 2366 select SYS_SUPPORTS_SMP 2367 select WEAK_ORDERING 2368 default n 2369 help 2370 Select this if you are using a bootloader which implements the "CMP 2371 framework" protocol (ie. YAMON) and want your kernel to make use of 2372 its ability to start secondary CPUs. 2373 2374 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2375 instead of this. 2376 2377config MIPS_CPS 2378 bool "MIPS Coherent Processing System support" 2379 depends on SYS_SUPPORTS_MIPS_CPS 2380 select MIPS_CM 2381 select MIPS_CPS_PM if HOTPLUG_CPU 2382 select SMP 2383 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2384 select SYS_SUPPORTS_HOTPLUG_CPU 2385 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2386 select SYS_SUPPORTS_SMP 2387 select WEAK_ORDERING 2388 help 2389 Select this if you wish to run an SMP kernel across multiple cores 2390 within a MIPS Coherent Processing System. When this option is 2391 enabled the kernel will probe for other cores and boot them with 2392 no external assistance. It is safe to enable this when hardware 2393 support is unavailable. 2394 2395config MIPS_CPS_PM 2396 depends on MIPS_CPS 2397 bool 2398 2399config MIPS_CM 2400 bool 2401 select MIPS_CPC 2402 2403config MIPS_CPC 2404 bool 2405 2406config SB1_PASS_2_WORKAROUNDS 2407 bool 2408 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2409 default y 2410 2411config SB1_PASS_2_1_WORKAROUNDS 2412 bool 2413 depends on CPU_SB1 && CPU_SB1_PASS_2 2414 default y 2415 2416 2417choice 2418 prompt "SmartMIPS or microMIPS ASE support" 2419 2420config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2421 bool "None" 2422 help 2423 Select this if you want neither microMIPS nor SmartMIPS support 2424 2425config CPU_HAS_SMARTMIPS 2426 depends on SYS_SUPPORTS_SMARTMIPS 2427 bool "SmartMIPS" 2428 help 2429 SmartMIPS is a extension of the MIPS32 architecture aimed at 2430 increased security at both hardware and software level for 2431 smartcards. Enabling this option will allow proper use of the 2432 SmartMIPS instructions by Linux applications. However a kernel with 2433 this option will not work on a MIPS core without SmartMIPS core. If 2434 you don't know you probably don't have SmartMIPS and should say N 2435 here. 2436 2437config CPU_MICROMIPS 2438 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2439 bool "microMIPS" 2440 help 2441 When this option is enabled the kernel will be built using the 2442 microMIPS ISA 2443 2444endchoice 2445 2446config CPU_HAS_MSA 2447 bool "Support for the MIPS SIMD Architecture" 2448 depends on CPU_SUPPORTS_MSA 2449 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2450 help 2451 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2452 and a set of SIMD instructions to operate on them. When this option 2453 is enabled the kernel will support allocating & switching MSA 2454 vector register contexts. If you know that your kernel will only be 2455 running on CPUs which do not support MSA or that your userland will 2456 not be making use of it then you may wish to say N here to reduce 2457 the size & complexity of your kernel. 2458 2459 If unsure, say Y. 2460 2461config CPU_HAS_WB 2462 bool 2463 2464config XKS01 2465 bool 2466 2467config CPU_HAS_RIXI 2468 bool 2469 2470# 2471# Vectored interrupt mode is an R2 feature 2472# 2473config CPU_MIPSR2_IRQ_VI 2474 bool 2475 2476# 2477# Extended interrupt mode is an R2 feature 2478# 2479config CPU_MIPSR2_IRQ_EI 2480 bool 2481 2482config CPU_HAS_SYNC 2483 bool 2484 depends on !CPU_R3000 2485 default y 2486 2487# 2488# CPU non-features 2489# 2490config CPU_DADDI_WORKAROUNDS 2491 bool 2492 2493config CPU_R4000_WORKAROUNDS 2494 bool 2495 select CPU_R4400_WORKAROUNDS 2496 2497config CPU_R4400_WORKAROUNDS 2498 bool 2499 2500config MIPS_ASID_SHIFT 2501 int 2502 default 6 if CPU_R3000 || CPU_TX39XX 2503 default 4 if CPU_R8000 2504 default 0 2505 2506config MIPS_ASID_BITS 2507 int 2508 default 0 if MIPS_ASID_BITS_VARIABLE 2509 default 6 if CPU_R3000 || CPU_TX39XX 2510 default 8 2511 2512config MIPS_ASID_BITS_VARIABLE 2513 bool 2514 2515config MIPS_CRC_SUPPORT 2516 bool 2517 2518# 2519# - Highmem only makes sense for the 32-bit kernel. 2520# - The current highmem code will only work properly on physically indexed 2521# caches such as R3000, SB1, R7000 or those that look like they're virtually 2522# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2523# moment we protect the user and offer the highmem option only on machines 2524# where it's known to be safe. This will not offer highmem on a few systems 2525# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2526# indexed CPUs but we're playing safe. 2527# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2528# know they might have memory configurations that could make use of highmem 2529# support. 2530# 2531config HIGHMEM 2532 bool "High Memory Support" 2533 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2534 2535config CPU_SUPPORTS_HIGHMEM 2536 bool 2537 2538config SYS_SUPPORTS_HIGHMEM 2539 bool 2540 2541config SYS_SUPPORTS_SMARTMIPS 2542 bool 2543 2544config SYS_SUPPORTS_MICROMIPS 2545 bool 2546 2547config SYS_SUPPORTS_MIPS16 2548 bool 2549 help 2550 This option must be set if a kernel might be executed on a MIPS16- 2551 enabled CPU even if MIPS16 is not actually being used. In other 2552 words, it makes the kernel MIPS16-tolerant. 2553 2554config CPU_SUPPORTS_MSA 2555 bool 2556 2557config ARCH_FLATMEM_ENABLE 2558 def_bool y 2559 depends on !NUMA && !CPU_LOONGSON2 2560 2561config ARCH_DISCONTIGMEM_ENABLE 2562 bool 2563 default y if SGI_IP27 2564 help 2565 Say Y to support efficient handling of discontiguous physical memory, 2566 for architectures which are either NUMA (Non-Uniform Memory Access) 2567 or have huge holes in the physical address space for other reasons. 2568 See <file:Documentation/vm/numa.rst> for more. 2569 2570config ARCH_SPARSEMEM_ENABLE 2571 bool 2572 select SPARSEMEM_STATIC 2573 2574config NUMA 2575 bool "NUMA Support" 2576 depends on SYS_SUPPORTS_NUMA 2577 help 2578 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2579 Access). This option improves performance on systems with more 2580 than two nodes; on two node systems it is generally better to 2581 leave it disabled; on single node systems disable this option 2582 disabled. 2583 2584config SYS_SUPPORTS_NUMA 2585 bool 2586 2587config RELOCATABLE 2588 bool "Relocatable kernel" 2589 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2590 help 2591 This builds a kernel image that retains relocation information 2592 so it can be loaded someplace besides the default 1MB. 2593 The relocations make the kernel binary about 15% larger, 2594 but are discarded at runtime 2595 2596config RELOCATION_TABLE_SIZE 2597 hex "Relocation table size" 2598 depends on RELOCATABLE 2599 range 0x0 0x01000000 2600 default "0x00100000" 2601 ---help--- 2602 A table of relocation data will be appended to the kernel binary 2603 and parsed at boot to fix up the relocated kernel. 2604 2605 This option allows the amount of space reserved for the table to be 2606 adjusted, although the default of 1Mb should be ok in most cases. 2607 2608 The build will fail and a valid size suggested if this is too small. 2609 2610 If unsure, leave at the default value. 2611 2612config RANDOMIZE_BASE 2613 bool "Randomize the address of the kernel image" 2614 depends on RELOCATABLE 2615 ---help--- 2616 Randomizes the physical and virtual address at which the 2617 kernel image is loaded, as a security feature that 2618 deters exploit attempts relying on knowledge of the location 2619 of kernel internals. 2620 2621 Entropy is generated using any coprocessor 0 registers available. 2622 2623 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2624 2625 If unsure, say N. 2626 2627config RANDOMIZE_BASE_MAX_OFFSET 2628 hex "Maximum kASLR offset" if EXPERT 2629 depends on RANDOMIZE_BASE 2630 range 0x0 0x40000000 if EVA || 64BIT 2631 range 0x0 0x08000000 2632 default "0x01000000" 2633 ---help--- 2634 When kASLR is active, this provides the maximum offset that will 2635 be applied to the kernel image. It should be set according to the 2636 amount of physical RAM available in the target system minus 2637 PHYSICAL_START and must be a power of 2. 2638 2639 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2640 EVA or 64-bit. The default is 16Mb. 2641 2642config NODES_SHIFT 2643 int 2644 default "6" 2645 depends on NEED_MULTIPLE_NODES 2646 2647config HW_PERF_EVENTS 2648 bool "Enable hardware performance counter support for perf events" 2649 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2650 default y 2651 help 2652 Enable hardware performance counter support for perf events. If 2653 disabled, perf events will use software events only. 2654 2655source "mm/Kconfig" 2656 2657config SMP 2658 bool "Multi-Processing support" 2659 depends on SYS_SUPPORTS_SMP 2660 help 2661 This enables support for systems with more than one CPU. If you have 2662 a system with only one CPU, say N. If you have a system with more 2663 than one CPU, say Y. 2664 2665 If you say N here, the kernel will run on uni- and multiprocessor 2666 machines, but will use only one CPU of a multiprocessor machine. If 2667 you say Y here, the kernel will run on many, but not all, 2668 uniprocessor machines. On a uniprocessor machine, the kernel 2669 will run faster if you say N here. 2670 2671 People using multiprocessor machines who say Y here should also say 2672 Y to "Enhanced Real Time Clock Support", below. 2673 2674 See also the SMP-HOWTO available at 2675 <http://www.tldp.org/docs.html#howto>. 2676 2677 If you don't know what to do here, say N. 2678 2679config HOTPLUG_CPU 2680 bool "Support for hot-pluggable CPUs" 2681 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2682 help 2683 Say Y here to allow turning CPUs off and on. CPUs can be 2684 controlled through /sys/devices/system/cpu. 2685 (Note: power management support will enable this option 2686 automatically on SMP systems. ) 2687 Say N if you want to disable CPU hotplug. 2688 2689config SMP_UP 2690 bool 2691 2692config SYS_SUPPORTS_MIPS_CMP 2693 bool 2694 2695config SYS_SUPPORTS_MIPS_CPS 2696 bool 2697 2698config SYS_SUPPORTS_SMP 2699 bool 2700 2701config NR_CPUS_DEFAULT_4 2702 bool 2703 2704config NR_CPUS_DEFAULT_8 2705 bool 2706 2707config NR_CPUS_DEFAULT_16 2708 bool 2709 2710config NR_CPUS_DEFAULT_32 2711 bool 2712 2713config NR_CPUS_DEFAULT_64 2714 bool 2715 2716config NR_CPUS 2717 int "Maximum number of CPUs (2-256)" 2718 range 2 256 2719 depends on SMP 2720 default "4" if NR_CPUS_DEFAULT_4 2721 default "8" if NR_CPUS_DEFAULT_8 2722 default "16" if NR_CPUS_DEFAULT_16 2723 default "32" if NR_CPUS_DEFAULT_32 2724 default "64" if NR_CPUS_DEFAULT_64 2725 help 2726 This allows you to specify the maximum number of CPUs which this 2727 kernel will support. The maximum supported value is 32 for 32-bit 2728 kernel and 64 for 64-bit kernels; the minimum value which makes 2729 sense is 1 for Qemu (useful only for kernel debugging purposes) 2730 and 2 for all others. 2731 2732 This is purely to save memory - each supported CPU adds 2733 approximately eight kilobytes to the kernel image. For best 2734 performance should round up your number of processors to the next 2735 power of two. 2736 2737config MIPS_PERF_SHARED_TC_COUNTERS 2738 bool 2739 2740config MIPS_NR_CPU_NR_MAP_1024 2741 bool 2742 2743config MIPS_NR_CPU_NR_MAP 2744 int 2745 depends on SMP 2746 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2747 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2748 2749# 2750# Timer Interrupt Frequency Configuration 2751# 2752 2753choice 2754 prompt "Timer frequency" 2755 default HZ_250 2756 help 2757 Allows the configuration of the timer frequency. 2758 2759 config HZ_24 2760 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2761 2762 config HZ_48 2763 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2764 2765 config HZ_100 2766 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2767 2768 config HZ_128 2769 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2770 2771 config HZ_250 2772 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2773 2774 config HZ_256 2775 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2776 2777 config HZ_1000 2778 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2779 2780 config HZ_1024 2781 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2782 2783endchoice 2784 2785config SYS_SUPPORTS_24HZ 2786 bool 2787 2788config SYS_SUPPORTS_48HZ 2789 bool 2790 2791config SYS_SUPPORTS_100HZ 2792 bool 2793 2794config SYS_SUPPORTS_128HZ 2795 bool 2796 2797config SYS_SUPPORTS_250HZ 2798 bool 2799 2800config SYS_SUPPORTS_256HZ 2801 bool 2802 2803config SYS_SUPPORTS_1000HZ 2804 bool 2805 2806config SYS_SUPPORTS_1024HZ 2807 bool 2808 2809config SYS_SUPPORTS_ARBIT_HZ 2810 bool 2811 default y if !SYS_SUPPORTS_24HZ && \ 2812 !SYS_SUPPORTS_48HZ && \ 2813 !SYS_SUPPORTS_100HZ && \ 2814 !SYS_SUPPORTS_128HZ && \ 2815 !SYS_SUPPORTS_250HZ && \ 2816 !SYS_SUPPORTS_256HZ && \ 2817 !SYS_SUPPORTS_1000HZ && \ 2818 !SYS_SUPPORTS_1024HZ 2819 2820config HZ 2821 int 2822 default 24 if HZ_24 2823 default 48 if HZ_48 2824 default 100 if HZ_100 2825 default 128 if HZ_128 2826 default 250 if HZ_250 2827 default 256 if HZ_256 2828 default 1000 if HZ_1000 2829 default 1024 if HZ_1024 2830 2831config SCHED_HRTICK 2832 def_bool HIGH_RES_TIMERS 2833 2834source "kernel/Kconfig.preempt" 2835 2836config KEXEC 2837 bool "Kexec system call" 2838 select KEXEC_CORE 2839 help 2840 kexec is a system call that implements the ability to shutdown your 2841 current kernel, and to start another kernel. It is like a reboot 2842 but it is independent of the system firmware. And like a reboot 2843 you can start any kernel with it, not just Linux. 2844 2845 The name comes from the similarity to the exec system call. 2846 2847 It is an ongoing process to be certain the hardware in a machine 2848 is properly shutdown, so do not be surprised if this code does not 2849 initially work for you. As of this writing the exact hardware 2850 interface is strongly in flux, so no good recommendation can be 2851 made. 2852 2853config CRASH_DUMP 2854 bool "Kernel crash dumps" 2855 help 2856 Generate crash dump after being started by kexec. 2857 This should be normally only set in special crash dump kernels 2858 which are loaded in the main kernel with kexec-tools into 2859 a specially reserved region and then later executed after 2860 a crash by kdump/kexec. The crash dump kernel must be compiled 2861 to a memory address not used by the main kernel or firmware using 2862 PHYSICAL_START. 2863 2864config PHYSICAL_START 2865 hex "Physical address where the kernel is loaded" 2866 default "0xffffffff84000000" 2867 depends on CRASH_DUMP 2868 help 2869 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2870 If you plan to use kernel for capturing the crash dump change 2871 this value to start of the reserved region (the "X" value as 2872 specified in the "crashkernel=YM@XM" command line boot parameter 2873 passed to the panic-ed kernel). 2874 2875config SECCOMP 2876 bool "Enable seccomp to safely compute untrusted bytecode" 2877 depends on PROC_FS 2878 default y 2879 help 2880 This kernel feature is useful for number crunching applications 2881 that may need to compute untrusted bytecode during their 2882 execution. By using pipes or other transports made available to 2883 the process as file descriptors supporting the read/write 2884 syscalls, it's possible to isolate those applications in 2885 their own address space using seccomp. Once seccomp is 2886 enabled via /proc/<pid>/seccomp, it cannot be disabled 2887 and the task is only allowed to execute a few safe syscalls 2888 defined by each seccomp mode. 2889 2890 If unsure, say Y. Only embedded should say N here. 2891 2892config MIPS_O32_FP64_SUPPORT 2893 bool "Support for O32 binaries using 64-bit FP" 2894 depends on 32BIT || MIPS32_O32 2895 help 2896 When this is enabled, the kernel will support use of 64-bit floating 2897 point registers with binaries using the O32 ABI along with the 2898 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2899 32-bit MIPS systems this support is at the cost of increasing the 2900 size and complexity of the compiled FPU emulator. Thus if you are 2901 running a MIPS32 system and know that none of your userland binaries 2902 will require 64-bit floating point, you may wish to reduce the size 2903 of your kernel & potentially improve FP emulation performance by 2904 saying N here. 2905 2906 Although binutils currently supports use of this flag the details 2907 concerning its effect upon the O32 ABI in userland are still being 2908 worked on. In order to avoid userland becoming dependant upon current 2909 behaviour before the details have been finalised, this option should 2910 be considered experimental and only enabled by those working upon 2911 said details. 2912 2913 If unsure, say N. 2914 2915config USE_OF 2916 bool 2917 select OF 2918 select OF_EARLY_FLATTREE 2919 select IRQ_DOMAIN 2920 2921config BUILTIN_DTB 2922 bool 2923 2924choice 2925 prompt "Kernel appended dtb support" if USE_OF 2926 default MIPS_NO_APPENDED_DTB 2927 2928 config MIPS_NO_APPENDED_DTB 2929 bool "None" 2930 help 2931 Do not enable appended dtb support. 2932 2933 config MIPS_ELF_APPENDED_DTB 2934 bool "vmlinux" 2935 help 2936 With this option, the boot code will look for a device tree binary 2937 DTB) included in the vmlinux ELF section .appended_dtb. By default 2938 it is empty and the DTB can be appended using binutils command 2939 objcopy: 2940 2941 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2942 2943 This is meant as a backward compatiblity convenience for those 2944 systems with a bootloader that can't be upgraded to accommodate 2945 the documented boot protocol using a device tree. 2946 2947 config MIPS_RAW_APPENDED_DTB 2948 bool "vmlinux.bin or vmlinuz.bin" 2949 help 2950 With this option, the boot code will look for a device tree binary 2951 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2952 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2953 2954 This is meant as a backward compatibility convenience for those 2955 systems with a bootloader that can't be upgraded to accommodate 2956 the documented boot protocol using a device tree. 2957 2958 Beware that there is very little in terms of protection against 2959 this option being confused by leftover garbage in memory that might 2960 look like a DTB header after a reboot if no actual DTB is appended 2961 to vmlinux.bin. Do not leave this option active in a production kernel 2962 if you don't intend to always append a DTB. 2963endchoice 2964 2965choice 2966 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2967 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2968 !MIPS_MALTA && \ 2969 !CAVIUM_OCTEON_SOC 2970 default MIPS_CMDLINE_FROM_BOOTLOADER 2971 2972 config MIPS_CMDLINE_FROM_DTB 2973 depends on USE_OF 2974 bool "Dtb kernel arguments if available" 2975 2976 config MIPS_CMDLINE_DTB_EXTEND 2977 depends on USE_OF 2978 bool "Extend dtb kernel arguments with bootloader arguments" 2979 2980 config MIPS_CMDLINE_FROM_BOOTLOADER 2981 bool "Bootloader kernel arguments if available" 2982 2983 config MIPS_CMDLINE_BUILTIN_EXTEND 2984 depends on CMDLINE_BOOL 2985 bool "Extend builtin kernel arguments with bootloader arguments" 2986endchoice 2987 2988endmenu 2989 2990config LOCKDEP_SUPPORT 2991 bool 2992 default y 2993 2994config STACKTRACE_SUPPORT 2995 bool 2996 default y 2997 2998config HAVE_LATENCYTOP_SUPPORT 2999 bool 3000 default y 3001 3002config PGTABLE_LEVELS 3003 int 3004 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3005 default 3 if 64BIT && !PAGE_SIZE_64KB 3006 default 2 3007 3008source "init/Kconfig" 3009 3010source "kernel/Kconfig.freezer" 3011 3012menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3013 3014config HW_HAS_EISA 3015 bool 3016config HW_HAS_PCI 3017 bool 3018 3019config PCI 3020 bool "Support for PCI controller" 3021 depends on HW_HAS_PCI 3022 select PCI_DOMAINS 3023 help 3024 Find out whether you have a PCI motherboard. PCI is the name of a 3025 bus system, i.e. the way the CPU talks to the other stuff inside 3026 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3027 say Y, otherwise N. 3028 3029config HT_PCI 3030 bool "Support for HT-linked PCI" 3031 default y 3032 depends on CPU_LOONGSON3 3033 select PCI 3034 select PCI_DOMAINS 3035 help 3036 Loongson family machines use Hyper-Transport bus for inter-core 3037 connection and device connection. The PCI bus is a subordinate 3038 linked at HT. Choose Y for Loongson-3 based machines. 3039 3040config PCI_DOMAINS 3041 bool 3042 3043config PCI_DOMAINS_GENERIC 3044 bool 3045 3046config PCI_DRIVERS_GENERIC 3047 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3048 bool 3049 3050config PCI_DRIVERS_LEGACY 3051 def_bool !PCI_DRIVERS_GENERIC 3052 select NO_GENERIC_PCI_IOPORT_MAP 3053 3054source "drivers/pci/Kconfig" 3055 3056# 3057# ISA support is now enabled via select. Too many systems still have the one 3058# or other ISA chip on the board that users don't know about so don't expect 3059# users to choose the right thing ... 3060# 3061config ISA 3062 bool 3063 3064config EISA 3065 bool "EISA support" 3066 depends on HW_HAS_EISA 3067 select ISA 3068 select GENERIC_ISA_DMA 3069 ---help--- 3070 The Extended Industry Standard Architecture (EISA) bus was 3071 developed as an open alternative to the IBM MicroChannel bus. 3072 3073 The EISA bus provided some of the features of the IBM MicroChannel 3074 bus while maintaining backward compatibility with cards made for 3075 the older ISA bus. The EISA bus saw limited use between 1988 and 3076 1995 when it was made obsolete by the PCI bus. 3077 3078 Say Y here if you are building a kernel for an EISA-based machine. 3079 3080 Otherwise, say N. 3081 3082source "drivers/eisa/Kconfig" 3083 3084config TC 3085 bool "TURBOchannel support" 3086 depends on MACH_DECSTATION 3087 help 3088 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3089 processors. TURBOchannel programming specifications are available 3090 at: 3091 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3092 and: 3093 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3094 Linux driver support status is documented at: 3095 <http://www.linux-mips.org/wiki/DECstation> 3096 3097config MMU 3098 bool 3099 default y 3100 3101config ARCH_MMAP_RND_BITS_MIN 3102 default 12 if 64BIT 3103 default 8 3104 3105config ARCH_MMAP_RND_BITS_MAX 3106 default 18 if 64BIT 3107 default 15 3108 3109config ARCH_MMAP_RND_COMPAT_BITS_MIN 3110 default 8 3111 3112config ARCH_MMAP_RND_COMPAT_BITS_MAX 3113 default 15 3114 3115config I8253 3116 bool 3117 select CLKSRC_I8253 3118 select CLKEVT_I8253 3119 select MIPS_EXTERNAL_TIMER 3120 3121config ZONE_DMA 3122 bool 3123 3124config ZONE_DMA32 3125 bool 3126 3127source "drivers/pcmcia/Kconfig" 3128 3129config RAPIDIO 3130 tristate "RapidIO support" 3131 depends on PCI 3132 default n 3133 help 3134 If you say Y here, the kernel will include drivers and 3135 infrastructure code to support RapidIO interconnect devices. 3136 3137source "drivers/rapidio/Kconfig" 3138 3139endmenu 3140 3141menu "Executable file formats" 3142 3143source "fs/Kconfig.binfmt" 3144 3145config TRAD_SIGNALS 3146 bool 3147 3148config MIPS32_COMPAT 3149 bool 3150 3151config COMPAT 3152 bool 3153 3154config SYSVIPC_COMPAT 3155 bool 3156 3157config MIPS32_O32 3158 bool "Kernel support for o32 binaries" 3159 depends on 64BIT 3160 select ARCH_WANT_OLD_COMPAT_IPC 3161 select COMPAT 3162 select MIPS32_COMPAT 3163 select SYSVIPC_COMPAT if SYSVIPC 3164 help 3165 Select this option if you want to run o32 binaries. These are pure 3166 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3167 existing binaries are in this format. 3168 3169 If unsure, say Y. 3170 3171config MIPS32_N32 3172 bool "Kernel support for n32 binaries" 3173 depends on 64BIT 3174 select COMPAT 3175 select MIPS32_COMPAT 3176 select SYSVIPC_COMPAT if SYSVIPC 3177 help 3178 Select this option if you want to run n32 binaries. These are 3179 64-bit binaries using 32-bit quantities for addressing and certain 3180 data that would normally be 64-bit. They are used in special 3181 cases. 3182 3183 If unsure, say N. 3184 3185config BINFMT_ELF32 3186 bool 3187 default y if MIPS32_O32 || MIPS32_N32 3188 select ELFCORE 3189 3190endmenu 3191 3192menu "Power management options" 3193 3194config ARCH_HIBERNATION_POSSIBLE 3195 def_bool y 3196 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3197 3198config ARCH_SUSPEND_POSSIBLE 3199 def_bool y 3200 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3201 3202source "kernel/power/Kconfig" 3203 3204endmenu 3205 3206config MIPS_EXTERNAL_TIMER 3207 bool 3208 3209menu "CPU Power Management" 3210 3211if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3212source "drivers/cpufreq/Kconfig" 3213endif 3214 3215source "drivers/cpuidle/Kconfig" 3216 3217endmenu 3218 3219source "net/Kconfig" 3220 3221source "drivers/Kconfig" 3222 3223source "drivers/firmware/Kconfig" 3224 3225source "fs/Kconfig" 3226 3227source "arch/mips/Kconfig.debug" 3228 3229source "security/Kconfig" 3230 3231source "crypto/Kconfig" 3232 3233source "lib/Kconfig" 3234 3235source "arch/mips/kvm/Kconfig" 3236