1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_CLOCKSOURCE_DATA 8 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 9 select ARCH_HAS_UBSAN_SANITIZE_ALL 10 select ARCH_HAS_FORTIFY_SOURCE 11 select ARCH_SUPPORTS_UPROBES 12 select ARCH_USE_BUILTIN_BSWAP 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 14 select ARCH_USE_QUEUED_RWLOCKS 15 select ARCH_USE_QUEUED_SPINLOCKS 16 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 17 select ARCH_WANT_IPC_PARSE_VERSION 18 select BUILDTIME_EXTABLE_SORT 19 select CLONE_BACKWARDS 20 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 21 select CPU_PM if CPU_IDLE 22 select GENERIC_ATOMIC64 if !64BIT 23 select GENERIC_CLOCKEVENTS 24 select GENERIC_CMOS_UPDATE 25 select GENERIC_CPU_AUTOPROBE 26 select GENERIC_GETTIMEOFDAY 27 select GENERIC_IOMAP 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select GENERIC_ISA_DMA if EISA 31 select GENERIC_LIB_ASHLDI3 32 select GENERIC_LIB_ASHRDI3 33 select GENERIC_LIB_CMPDI2 34 select GENERIC_LIB_LSHRDI3 35 select GENERIC_LIB_UCMPDI2 36 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 37 select GENERIC_SMP_IDLE_THREAD 38 select GENERIC_TIME_VSYSCALL 39 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 40 select HANDLE_DOMAIN_IRQ 41 select HAVE_ARCH_COMPILER_H 42 select HAVE_ARCH_JUMP_LABEL 43 select HAVE_ARCH_KGDB 44 select HAVE_ARCH_MMAP_RND_BITS if MMU 45 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 46 select HAVE_ARCH_SECCOMP_FILTER 47 select HAVE_ARCH_TRACEHOOK 48 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 49 select HAVE_ASM_MODVERSIONS 50 select HAVE_EBPF_JIT if (!CPU_MICROMIPS) 51 select HAVE_CONTEXT_TRACKING 52 select HAVE_COPY_THREAD_TLS 53 select HAVE_C_RECORDMCOUNT 54 select HAVE_DEBUG_KMEMLEAK 55 select HAVE_DEBUG_STACKOVERFLOW 56 select HAVE_DMA_CONTIGUOUS 57 select HAVE_DYNAMIC_FTRACE 58 select HAVE_EXIT_THREAD 59 select HAVE_FAST_GUP 60 select HAVE_FTRACE_MCOUNT_RECORD 61 select HAVE_FUNCTION_GRAPH_TRACER 62 select HAVE_FUNCTION_TRACER 63 select HAVE_IDE 64 select HAVE_IOREMAP_PROT 65 select HAVE_IRQ_EXIT_ON_IRQ_STACK 66 select HAVE_IRQ_TIME_ACCOUNTING 67 select HAVE_KPROBES 68 select HAVE_KRETPROBES 69 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 70 select HAVE_MEMBLOCK_NODE_MAP 71 select HAVE_MOD_ARCH_SPECIFIC 72 select HAVE_NMI 73 select HAVE_OPROFILE 74 select HAVE_PERF_EVENTS 75 select HAVE_REGS_AND_STACK_ACCESS_API 76 select HAVE_RSEQ 77 select HAVE_STACKPROTECTOR 78 select HAVE_SYSCALL_TRACEPOINTS 79 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 80 select HAVE_GENERIC_VDSO 81 select IRQ_FORCED_THREADING 82 select ISA if EISA 83 select MODULES_USE_ELF_RELA if MODULES && 64BIT 84 select MODULES_USE_ELF_REL if MODULES 85 select PERF_USE_VMALLOC 86 select RTC_LIB 87 select SYSCTL_EXCEPTION_TRACE 88 select VIRT_TO_BUS 89 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 90 91menu "Machine selection" 92 93choice 94 prompt "System type" 95 default MIPS_GENERIC 96 97config MIPS_GENERIC 98 bool "Generic board-agnostic MIPS kernel" 99 select BOOT_RAW 100 select BUILTIN_DTB 101 select CEVT_R4K 102 select CLKSRC_MIPS_GIC 103 select COMMON_CLK 104 select CPU_MIPSR2_IRQ_VI 105 select CPU_MIPSR2_IRQ_EI 106 select CSRC_R4K 107 select DMA_PERDEV_COHERENT 108 select HAVE_PCI 109 select IRQ_MIPS_CPU 110 select LIBFDT 111 select MIPS_AUTO_PFN_OFFSET 112 select MIPS_CPU_SCACHE 113 select MIPS_GIC 114 select MIPS_L1_CACHE_SHIFT_7 115 select NO_EXCEPT_FILL 116 select PCI_DRIVERS_GENERIC 117 select PINCTRL 118 select SMP_UP if SMP 119 select SWAP_IO_SPACE 120 select SYS_HAS_CPU_MIPS32_R1 121 select SYS_HAS_CPU_MIPS32_R2 122 select SYS_HAS_CPU_MIPS32_R6 123 select SYS_HAS_CPU_MIPS64_R1 124 select SYS_HAS_CPU_MIPS64_R2 125 select SYS_HAS_CPU_MIPS64_R6 126 select SYS_SUPPORTS_32BIT_KERNEL 127 select SYS_SUPPORTS_64BIT_KERNEL 128 select SYS_SUPPORTS_BIG_ENDIAN 129 select SYS_SUPPORTS_HIGHMEM 130 select SYS_SUPPORTS_LITTLE_ENDIAN 131 select SYS_SUPPORTS_MICROMIPS 132 select SYS_SUPPORTS_MIPS_CPS 133 select SYS_SUPPORTS_MIPS16 134 select SYS_SUPPORTS_MULTITHREADING 135 select SYS_SUPPORTS_RELOCATABLE 136 select SYS_SUPPORTS_SMARTMIPS 137 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 138 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 139 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 140 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 141 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 142 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 143 select USE_OF 144 select UHI_BOOT 145 help 146 Select this to build a kernel which aims to support multiple boards, 147 generally using a flattened device tree passed from the bootloader 148 using the boot protocol defined in the UHI (Unified Hosting 149 Interface) specification. 150 151config MIPS_ALCHEMY 152 bool "Alchemy processor based machines" 153 select PHYS_ADDR_T_64BIT 154 select CEVT_R4K 155 select CSRC_R4K 156 select IRQ_MIPS_CPU 157 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 158 select SYS_HAS_CPU_MIPS32_R1 159 select SYS_SUPPORTS_32BIT_KERNEL 160 select SYS_SUPPORTS_APM_EMULATION 161 select GPIOLIB 162 select SYS_SUPPORTS_ZBOOT 163 select COMMON_CLK 164 165config AR7 166 bool "Texas Instruments AR7" 167 select BOOT_ELF32 168 select DMA_NONCOHERENT 169 select CEVT_R4K 170 select CSRC_R4K 171 select IRQ_MIPS_CPU 172 select NO_EXCEPT_FILL 173 select SWAP_IO_SPACE 174 select SYS_HAS_CPU_MIPS32_R1 175 select SYS_HAS_EARLY_PRINTK 176 select SYS_SUPPORTS_32BIT_KERNEL 177 select SYS_SUPPORTS_LITTLE_ENDIAN 178 select SYS_SUPPORTS_MIPS16 179 select SYS_SUPPORTS_ZBOOT_UART16550 180 select GPIOLIB 181 select VLYNQ 182 select HAVE_CLK 183 help 184 Support for the Texas Instruments AR7 System-on-a-Chip 185 family: TNETD7100, 7200 and 7300. 186 187config ATH25 188 bool "Atheros AR231x/AR531x SoC support" 189 select CEVT_R4K 190 select CSRC_R4K 191 select DMA_NONCOHERENT 192 select IRQ_MIPS_CPU 193 select IRQ_DOMAIN 194 select SYS_HAS_CPU_MIPS32_R1 195 select SYS_SUPPORTS_BIG_ENDIAN 196 select SYS_SUPPORTS_32BIT_KERNEL 197 select SYS_HAS_EARLY_PRINTK 198 help 199 Support for Atheros AR231x and Atheros AR531x based boards 200 201config ATH79 202 bool "Atheros AR71XX/AR724X/AR913X based boards" 203 select ARCH_HAS_RESET_CONTROLLER 204 select BOOT_RAW 205 select CEVT_R4K 206 select CSRC_R4K 207 select DMA_NONCOHERENT 208 select GPIOLIB 209 select PINCTRL 210 select HAVE_CLK 211 select COMMON_CLK 212 select CLKDEV_LOOKUP 213 select IRQ_MIPS_CPU 214 select SYS_HAS_CPU_MIPS32_R2 215 select SYS_HAS_EARLY_PRINTK 216 select SYS_SUPPORTS_32BIT_KERNEL 217 select SYS_SUPPORTS_BIG_ENDIAN 218 select SYS_SUPPORTS_MIPS16 219 select SYS_SUPPORTS_ZBOOT_UART_PROM 220 select USE_OF 221 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 222 help 223 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 224 225config BMIPS_GENERIC 226 bool "Broadcom Generic BMIPS kernel" 227 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 228 select ARCH_HAS_PHYS_TO_DMA 229 select BOOT_RAW 230 select NO_EXCEPT_FILL 231 select USE_OF 232 select CEVT_R4K 233 select CSRC_R4K 234 select SYNC_R4K 235 select COMMON_CLK 236 select BCM6345_L1_IRQ 237 select BCM7038_L1_IRQ 238 select BCM7120_L2_IRQ 239 select BRCMSTB_L2_IRQ 240 select IRQ_MIPS_CPU 241 select DMA_NONCOHERENT 242 select SYS_SUPPORTS_32BIT_KERNEL 243 select SYS_SUPPORTS_LITTLE_ENDIAN 244 select SYS_SUPPORTS_BIG_ENDIAN 245 select SYS_SUPPORTS_HIGHMEM 246 select SYS_HAS_CPU_BMIPS32_3300 247 select SYS_HAS_CPU_BMIPS4350 248 select SYS_HAS_CPU_BMIPS4380 249 select SYS_HAS_CPU_BMIPS5000 250 select SWAP_IO_SPACE 251 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 252 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 253 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 254 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 255 select HARDIRQS_SW_RESEND 256 help 257 Build a generic DT-based kernel image that boots on select 258 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 259 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 260 must be set appropriately for your board. 261 262config BCM47XX 263 bool "Broadcom BCM47XX based boards" 264 select BOOT_RAW 265 select CEVT_R4K 266 select CSRC_R4K 267 select DMA_NONCOHERENT 268 select HAVE_PCI 269 select IRQ_MIPS_CPU 270 select SYS_HAS_CPU_MIPS32_R1 271 select NO_EXCEPT_FILL 272 select SYS_SUPPORTS_32BIT_KERNEL 273 select SYS_SUPPORTS_LITTLE_ENDIAN 274 select SYS_SUPPORTS_MIPS16 275 select SYS_SUPPORTS_ZBOOT 276 select SYS_HAS_EARLY_PRINTK 277 select USE_GENERIC_EARLY_PRINTK_8250 278 select GPIOLIB 279 select LEDS_GPIO_REGISTER 280 select BCM47XX_NVRAM 281 select BCM47XX_SPROM 282 select BCM47XX_SSB if !BCM47XX_BCMA 283 help 284 Support for BCM47XX based boards 285 286config BCM63XX 287 bool "Broadcom BCM63XX based boards" 288 select BOOT_RAW 289 select CEVT_R4K 290 select CSRC_R4K 291 select SYNC_R4K 292 select DMA_NONCOHERENT 293 select IRQ_MIPS_CPU 294 select SYS_SUPPORTS_32BIT_KERNEL 295 select SYS_SUPPORTS_BIG_ENDIAN 296 select SYS_HAS_EARLY_PRINTK 297 select SWAP_IO_SPACE 298 select GPIOLIB 299 select HAVE_CLK 300 select MIPS_L1_CACHE_SHIFT_4 301 select CLKDEV_LOOKUP 302 help 303 Support for BCM63XX based boards 304 305config MIPS_COBALT 306 bool "Cobalt Server" 307 select CEVT_R4K 308 select CSRC_R4K 309 select CEVT_GT641XX 310 select DMA_NONCOHERENT 311 select FORCE_PCI 312 select I8253 313 select I8259 314 select IRQ_MIPS_CPU 315 select IRQ_GT641XX 316 select PCI_GT64XXX_PCI0 317 select SYS_HAS_CPU_NEVADA 318 select SYS_HAS_EARLY_PRINTK 319 select SYS_SUPPORTS_32BIT_KERNEL 320 select SYS_SUPPORTS_64BIT_KERNEL 321 select SYS_SUPPORTS_LITTLE_ENDIAN 322 select USE_GENERIC_EARLY_PRINTK_8250 323 324config MACH_DECSTATION 325 bool "DECstations" 326 select BOOT_ELF32 327 select CEVT_DS1287 328 select CEVT_R4K if CPU_R4X00 329 select CSRC_IOASIC 330 select CSRC_R4K if CPU_R4X00 331 select CPU_DADDI_WORKAROUNDS if 64BIT 332 select CPU_R4000_WORKAROUNDS if 64BIT 333 select CPU_R4400_WORKAROUNDS if 64BIT 334 select DMA_NONCOHERENT 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 ARC_MEMORY 364 select ARC_PROMLIB 365 select ARCH_MIGHT_HAVE_PC_PARPORT 366 select ARCH_MIGHT_HAVE_PC_SERIO 367 select FW_ARC 368 select FW_ARC32 369 select ARCH_MAY_HAVE_PC_FDC 370 select CEVT_R4K 371 select CSRC_R4K 372 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 373 select GENERIC_ISA_DMA 374 select HAVE_PCSPKR_PLATFORM 375 select IRQ_MIPS_CPU 376 select I8253 377 select I8259 378 select ISA 379 select SYS_HAS_CPU_R4X00 380 select SYS_SUPPORTS_32BIT_KERNEL 381 select SYS_SUPPORTS_64BIT_KERNEL 382 select SYS_SUPPORTS_100HZ 383 help 384 This a family of machines based on the MIPS R4030 chipset which was 385 used by several vendors to build RISC/os and Windows NT workstations. 386 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 387 Olivetti M700-10 workstations. 388 389config MACH_INGENIC 390 bool "Ingenic SoC based machines" 391 select SYS_SUPPORTS_32BIT_KERNEL 392 select SYS_SUPPORTS_LITTLE_ENDIAN 393 select SYS_SUPPORTS_ZBOOT_UART16550 394 select CPU_SUPPORTS_HUGEPAGES 395 select DMA_NONCOHERENT 396 select IRQ_MIPS_CPU 397 select PINCTRL 398 select GPIOLIB 399 select COMMON_CLK 400 select GENERIC_IRQ_CHIP 401 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 402 select USE_OF 403 select LIBFDT 404 405config LANTIQ 406 bool "Lantiq based platforms" 407 select DMA_NONCOHERENT 408 select IRQ_MIPS_CPU 409 select CEVT_R4K 410 select CSRC_R4K 411 select SYS_HAS_CPU_MIPS32_R1 412 select SYS_HAS_CPU_MIPS32_R2 413 select SYS_SUPPORTS_BIG_ENDIAN 414 select SYS_SUPPORTS_32BIT_KERNEL 415 select SYS_SUPPORTS_MIPS16 416 select SYS_SUPPORTS_MULTITHREADING 417 select SYS_SUPPORTS_VPE_LOADER 418 select SYS_HAS_EARLY_PRINTK 419 select GPIOLIB 420 select SWAP_IO_SPACE 421 select BOOT_RAW 422 select CLKDEV_LOOKUP 423 select USE_OF 424 select PINCTRL 425 select PINCTRL_LANTIQ 426 select ARCH_HAS_RESET_CONTROLLER 427 select RESET_CONTROLLER 428 429config LASAT 430 bool "LASAT Networks platforms" 431 select CEVT_R4K 432 select CRC32 433 select CSRC_R4K 434 select DMA_NONCOHERENT 435 select SYS_HAS_EARLY_PRINTK 436 select HAVE_PCI 437 select IRQ_MIPS_CPU 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_LOONGSON2EF 457 bool "Loongson-2E/F family of machines" 458 select SYS_SUPPORTS_ZBOOT 459 help 460 This enables the support of early Loongson-2E/F family of machines. 461 462config MACH_LOONGSON64 463 bool "Loongson-2/3 GSx64 family of machines" 464 select SYS_SUPPORTS_ZBOOT 465 help 466 This enables the support of Loongson-2/3 family of processors with 467 GSx64 microarchitecture. 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_GIC 484 select PINCTRL 485 select REGULATOR 486 select SYS_HAS_CPU_MIPS32_R2 487 select SYS_SUPPORTS_32BIT_KERNEL 488 select SYS_SUPPORTS_LITTLE_ENDIAN 489 select SYS_SUPPORTS_MIPS_CPS 490 select SYS_SUPPORTS_MULTITHREADING 491 select SYS_SUPPORTS_RELOCATABLE 492 select SYS_SUPPORTS_ZBOOT 493 select SYS_HAS_EARLY_PRINTK 494 select USE_GENERIC_EARLY_PRINTK_8250 495 select USE_OF 496 help 497 This enables support for the IMG Pistachio SoC platform. 498 499config MIPS_MALTA 500 bool "MIPS Malta board" 501 select ARCH_MAY_HAVE_PC_FDC 502 select ARCH_MIGHT_HAVE_PC_PARPORT 503 select ARCH_MIGHT_HAVE_PC_SERIO 504 select BOOT_ELF32 505 select BOOT_RAW 506 select BUILTIN_DTB 507 select CEVT_R4K 508 select CLKSRC_MIPS_GIC 509 select COMMON_CLK 510 select CSRC_R4K 511 select DMA_MAYBE_COHERENT 512 select GENERIC_ISA_DMA 513 select HAVE_PCSPKR_PLATFORM 514 select HAVE_PCI 515 select I8253 516 select I8259 517 select IRQ_MIPS_CPU 518 select LIBFDT 519 select MIPS_BONITO64 520 select MIPS_CPU_SCACHE 521 select MIPS_GIC 522 select MIPS_L1_CACHE_SHIFT_6 523 select MIPS_MSC 524 select PCI_GT64XXX_PCI0 525 select SMP_UP if SMP 526 select SWAP_IO_SPACE 527 select SYS_HAS_CPU_MIPS32_R1 528 select SYS_HAS_CPU_MIPS32_R2 529 select SYS_HAS_CPU_MIPS32_R3_5 530 select SYS_HAS_CPU_MIPS32_R5 531 select SYS_HAS_CPU_MIPS32_R6 532 select SYS_HAS_CPU_MIPS64_R1 533 select SYS_HAS_CPU_MIPS64_R2 534 select SYS_HAS_CPU_MIPS64_R6 535 select SYS_HAS_CPU_NEVADA 536 select SYS_HAS_CPU_RM7000 537 select SYS_SUPPORTS_32BIT_KERNEL 538 select SYS_SUPPORTS_64BIT_KERNEL 539 select SYS_SUPPORTS_BIG_ENDIAN 540 select SYS_SUPPORTS_HIGHMEM 541 select SYS_SUPPORTS_LITTLE_ENDIAN 542 select SYS_SUPPORTS_MICROMIPS 543 select SYS_SUPPORTS_MIPS16 544 select SYS_SUPPORTS_MIPS_CMP 545 select SYS_SUPPORTS_MIPS_CPS 546 select SYS_SUPPORTS_MULTITHREADING 547 select SYS_SUPPORTS_RELOCATABLE 548 select SYS_SUPPORTS_SMARTMIPS 549 select SYS_SUPPORTS_VPE_LOADER 550 select SYS_SUPPORTS_ZBOOT 551 select USE_OF 552 select ZONE_DMA32 if 64BIT 553 help 554 This enables support for the MIPS Technologies Malta evaluation 555 board. 556 557config MACH_PIC32 558 bool "Microchip PIC32 Family" 559 help 560 This enables support for the Microchip PIC32 family of platforms. 561 562 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 563 microcontrollers. 564 565config NEC_MARKEINS 566 bool "NEC EMMA2RH Mark-eins board" 567 select SOC_EMMA2RH 568 select HAVE_PCI 569 help 570 This enables support for the NEC Electronics Mark-eins boards. 571 572config MACH_VR41XX 573 bool "NEC VR4100 series based machines" 574 select CEVT_R4K 575 select CSRC_R4K 576 select SYS_HAS_CPU_VR41XX 577 select SYS_SUPPORTS_MIPS16 578 select GPIOLIB 579 580config NXP_STB220 581 bool "NXP STB220 board" 582 select SOC_PNX833X 583 help 584 Support for NXP Semiconductors STB220 Development Board. 585 586config NXP_STB225 587 bool "NXP 225 board" 588 select SOC_PNX833X 589 select SOC_PNX8335 590 help 591 Support for NXP Semiconductors STB225 Development Board. 592 593config PMC_MSP 594 bool "PMC-Sierra MSP chipsets" 595 select CEVT_R4K 596 select CSRC_R4K 597 select DMA_NONCOHERENT 598 select SWAP_IO_SPACE 599 select NO_EXCEPT_FILL 600 select BOOT_RAW 601 select SYS_HAS_CPU_MIPS32_R1 602 select SYS_HAS_CPU_MIPS32_R2 603 select SYS_SUPPORTS_32BIT_KERNEL 604 select SYS_SUPPORTS_BIG_ENDIAN 605 select SYS_SUPPORTS_MIPS16 606 select IRQ_MIPS_CPU 607 select SERIAL_8250 608 select SERIAL_8250_CONSOLE 609 select USB_EHCI_BIG_ENDIAN_MMIO 610 select USB_EHCI_BIG_ENDIAN_DESC 611 help 612 This adds support for the PMC-Sierra family of Multi-Service 613 Processor System-On-A-Chips. These parts include a number 614 of integrated peripherals, interfaces and DSPs in addition to 615 a variety of MIPS cores. 616 617config RALINK 618 bool "Ralink based machines" 619 select CEVT_R4K 620 select CSRC_R4K 621 select BOOT_RAW 622 select DMA_NONCOHERENT 623 select IRQ_MIPS_CPU 624 select USE_OF 625 select SYS_HAS_CPU_MIPS32_R1 626 select SYS_HAS_CPU_MIPS32_R2 627 select SYS_SUPPORTS_32BIT_KERNEL 628 select SYS_SUPPORTS_LITTLE_ENDIAN 629 select SYS_SUPPORTS_MIPS16 630 select SYS_HAS_EARLY_PRINTK 631 select CLKDEV_LOOKUP 632 select ARCH_HAS_RESET_CONTROLLER 633 select RESET_CONTROLLER 634 635config SGI_IP22 636 bool "SGI IP22 (Indy/Indigo2)" 637 select ARC_MEMORY 638 select ARC_PROMLIB 639 select FW_ARC 640 select FW_ARC32 641 select ARCH_MIGHT_HAVE_PC_SERIO 642 select BOOT_ELF32 643 select CEVT_R4K 644 select CSRC_R4K 645 select DEFAULT_SGI_PARTITION 646 select DMA_NONCOHERENT 647 select HAVE_EISA 648 select I8253 649 select I8259 650 select IP22_CPU_SCACHE 651 select IRQ_MIPS_CPU 652 select GENERIC_ISA_DMA_SUPPORT_BROKEN 653 select SGI_HAS_I8042 654 select SGI_HAS_INDYDOG 655 select SGI_HAS_HAL2 656 select SGI_HAS_SEEQ 657 select SGI_HAS_WD93 658 select SGI_HAS_ZILOG 659 select SWAP_IO_SPACE 660 select SYS_HAS_CPU_R4X00 661 select SYS_HAS_CPU_R5000 662 select SYS_HAS_EARLY_PRINTK 663 select SYS_SUPPORTS_32BIT_KERNEL 664 select SYS_SUPPORTS_64BIT_KERNEL 665 select SYS_SUPPORTS_BIG_ENDIAN 666 select MIPS_L1_CACHE_SHIFT_7 667 help 668 This are the SGI Indy, Challenge S and Indigo2, as well as certain 669 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 670 that runs on these, say Y here. 671 672config SGI_IP27 673 bool "SGI IP27 (Origin200/2000)" 674 select ARCH_HAS_PHYS_TO_DMA 675 select ARCH_SPARSEMEM_ENABLE 676 select FW_ARC 677 select FW_ARC64 678 select ARC_CMDLINE_ONLY 679 select BOOT_ELF64 680 select DEFAULT_SGI_PARTITION 681 select SYS_HAS_EARLY_PRINTK 682 select HAVE_PCI 683 select IRQ_MIPS_CPU 684 select IRQ_DOMAIN_HIERARCHY 685 select NR_CPUS_DEFAULT_64 686 select PCI_DRIVERS_GENERIC 687 select PCI_XTALK_BRIDGE 688 select SYS_HAS_CPU_R10000 689 select SYS_SUPPORTS_64BIT_KERNEL 690 select SYS_SUPPORTS_BIG_ENDIAN 691 select SYS_SUPPORTS_NUMA 692 select SYS_SUPPORTS_SMP 693 select MIPS_L1_CACHE_SHIFT_7 694 help 695 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 696 workstations. To compile a Linux kernel that runs on these, say Y 697 here. 698 699config SGI_IP28 700 bool "SGI IP28 (Indigo2 R10k)" 701 select ARC_MEMORY 702 select ARC_PROMLIB 703 select FW_ARC 704 select FW_ARC64 705 select ARCH_MIGHT_HAVE_PC_SERIO 706 select BOOT_ELF64 707 select CEVT_R4K 708 select CSRC_R4K 709 select DEFAULT_SGI_PARTITION 710 select DMA_NONCOHERENT 711 select GENERIC_ISA_DMA_SUPPORT_BROKEN 712 select IRQ_MIPS_CPU 713 select HAVE_EISA 714 select I8253 715 select I8259 716 select SGI_HAS_I8042 717 select SGI_HAS_INDYDOG 718 select SGI_HAS_HAL2 719 select SGI_HAS_SEEQ 720 select SGI_HAS_WD93 721 select SGI_HAS_ZILOG 722 select SWAP_IO_SPACE 723 select SYS_HAS_CPU_R10000 724 select SYS_HAS_EARLY_PRINTK 725 select SYS_SUPPORTS_64BIT_KERNEL 726 select SYS_SUPPORTS_BIG_ENDIAN 727 select MIPS_L1_CACHE_SHIFT_7 728 help 729 This is the SGI Indigo2 with R10000 processor. To compile a Linux 730 kernel that runs on these, say Y here. 731 732config SGI_IP32 733 bool "SGI IP32 (O2)" 734 select ARC_MEMORY 735 select ARC_PROMLIB 736 select ARCH_HAS_PHYS_TO_DMA 737 select FW_ARC 738 select FW_ARC32 739 select BOOT_ELF32 740 select CEVT_R4K 741 select CSRC_R4K 742 select DMA_NONCOHERENT 743 select HAVE_PCI 744 select IRQ_MIPS_CPU 745 select R5000_CPU_SCACHE 746 select RM7000_CPU_SCACHE 747 select SYS_HAS_CPU_R5000 748 select SYS_HAS_CPU_R10000 if BROKEN 749 select SYS_HAS_CPU_RM7000 750 select SYS_HAS_CPU_NEVADA 751 select SYS_SUPPORTS_64BIT_KERNEL 752 select SYS_SUPPORTS_BIG_ENDIAN 753 help 754 If you want this kernel to run on SGI O2 workstation, say Y here. 755 756config SIBYTE_CRHINE 757 bool "Sibyte BCM91120C-CRhine" 758 select BOOT_ELF32 759 select SIBYTE_BCM1120 760 select SWAP_IO_SPACE 761 select SYS_HAS_CPU_SB1 762 select SYS_SUPPORTS_BIG_ENDIAN 763 select SYS_SUPPORTS_LITTLE_ENDIAN 764 765config SIBYTE_CARMEL 766 bool "Sibyte BCM91120x-Carmel" 767 select BOOT_ELF32 768 select SIBYTE_BCM1120 769 select SWAP_IO_SPACE 770 select SYS_HAS_CPU_SB1 771 select SYS_SUPPORTS_BIG_ENDIAN 772 select SYS_SUPPORTS_LITTLE_ENDIAN 773 774config SIBYTE_CRHONE 775 bool "Sibyte BCM91125C-CRhone" 776 select BOOT_ELF32 777 select SIBYTE_BCM1125 778 select SWAP_IO_SPACE 779 select SYS_HAS_CPU_SB1 780 select SYS_SUPPORTS_BIG_ENDIAN 781 select SYS_SUPPORTS_HIGHMEM 782 select SYS_SUPPORTS_LITTLE_ENDIAN 783 784config SIBYTE_RHONE 785 bool "Sibyte BCM91125E-Rhone" 786 select BOOT_ELF32 787 select SIBYTE_BCM1125H 788 select SWAP_IO_SPACE 789 select SYS_HAS_CPU_SB1 790 select SYS_SUPPORTS_BIG_ENDIAN 791 select SYS_SUPPORTS_LITTLE_ENDIAN 792 793config SIBYTE_SWARM 794 bool "Sibyte BCM91250A-SWARM" 795 select BOOT_ELF32 796 select HAVE_PATA_PLATFORM 797 select SIBYTE_SB1250 798 select SWAP_IO_SPACE 799 select SYS_HAS_CPU_SB1 800 select SYS_SUPPORTS_BIG_ENDIAN 801 select SYS_SUPPORTS_HIGHMEM 802 select SYS_SUPPORTS_LITTLE_ENDIAN 803 select ZONE_DMA32 if 64BIT 804 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 805 806config SIBYTE_LITTLESUR 807 bool "Sibyte BCM91250C2-LittleSur" 808 select BOOT_ELF32 809 select HAVE_PATA_PLATFORM 810 select SIBYTE_SB1250 811 select SWAP_IO_SPACE 812 select SYS_HAS_CPU_SB1 813 select SYS_SUPPORTS_BIG_ENDIAN 814 select SYS_SUPPORTS_HIGHMEM 815 select SYS_SUPPORTS_LITTLE_ENDIAN 816 select ZONE_DMA32 if 64BIT 817 818config SIBYTE_SENTOSA 819 bool "Sibyte BCM91250E-Sentosa" 820 select BOOT_ELF32 821 select SIBYTE_SB1250 822 select SWAP_IO_SPACE 823 select SYS_HAS_CPU_SB1 824 select SYS_SUPPORTS_BIG_ENDIAN 825 select SYS_SUPPORTS_LITTLE_ENDIAN 826 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 827 828config SIBYTE_BIGSUR 829 bool "Sibyte BCM91480B-BigSur" 830 select BOOT_ELF32 831 select NR_CPUS_DEFAULT_4 832 select SIBYTE_BCM1x80 833 select SWAP_IO_SPACE 834 select SYS_HAS_CPU_SB1 835 select SYS_SUPPORTS_BIG_ENDIAN 836 select SYS_SUPPORTS_HIGHMEM 837 select SYS_SUPPORTS_LITTLE_ENDIAN 838 select ZONE_DMA32 if 64BIT 839 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 840 841config SNI_RM 842 bool "SNI RM200/300/400" 843 select ARC_MEMORY 844 select ARC_PROMLIB 845 select FW_ARC if CPU_LITTLE_ENDIAN 846 select FW_ARC32 if CPU_LITTLE_ENDIAN 847 select FW_SNIPROM if CPU_BIG_ENDIAN 848 select ARCH_MAY_HAVE_PC_FDC 849 select ARCH_MIGHT_HAVE_PC_PARPORT 850 select ARCH_MIGHT_HAVE_PC_SERIO 851 select BOOT_ELF32 852 select CEVT_R4K 853 select CSRC_R4K 854 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 855 select DMA_NONCOHERENT 856 select GENERIC_ISA_DMA 857 select HAVE_EISA 858 select HAVE_PCSPKR_PLATFORM 859 select HAVE_PCI 860 select IRQ_MIPS_CPU 861 select I8253 862 select I8259 863 select ISA 864 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 865 select SYS_HAS_CPU_R4X00 866 select SYS_HAS_CPU_R5000 867 select SYS_HAS_CPU_R10000 868 select R5000_CPU_SCACHE 869 select SYS_HAS_EARLY_PRINTK 870 select SYS_SUPPORTS_32BIT_KERNEL 871 select SYS_SUPPORTS_64BIT_KERNEL 872 select SYS_SUPPORTS_BIG_ENDIAN 873 select SYS_SUPPORTS_HIGHMEM 874 select SYS_SUPPORTS_LITTLE_ENDIAN 875 help 876 The SNI RM200/300/400 are MIPS-based machines manufactured by 877 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 878 Technology and now in turn merged with Fujitsu. Say Y here to 879 support this machine type. 880 881config MACH_TX39XX 882 bool "Toshiba TX39 series based machines" 883 884config MACH_TX49XX 885 bool "Toshiba TX49 series based machines" 886 887config MIKROTIK_RB532 888 bool "Mikrotik RB532 boards" 889 select CEVT_R4K 890 select CSRC_R4K 891 select DMA_NONCOHERENT 892 select HAVE_PCI 893 select IRQ_MIPS_CPU 894 select SYS_HAS_CPU_MIPS32_R1 895 select SYS_SUPPORTS_32BIT_KERNEL 896 select SYS_SUPPORTS_LITTLE_ENDIAN 897 select SWAP_IO_SPACE 898 select BOOT_RAW 899 select GPIOLIB 900 select MIPS_L1_CACHE_SHIFT_4 901 help 902 Support the Mikrotik(tm) RouterBoard 532 series, 903 based on the IDT RC32434 SoC. 904 905config CAVIUM_OCTEON_SOC 906 bool "Cavium Networks Octeon SoC based boards" 907 select CEVT_R4K 908 select ARCH_HAS_PHYS_TO_DMA 909 select HAVE_RAPIDIO 910 select PHYS_ADDR_T_64BIT 911 select SYS_SUPPORTS_64BIT_KERNEL 912 select SYS_SUPPORTS_BIG_ENDIAN 913 select EDAC_SUPPORT 914 select EDAC_ATOMIC_SCRUB 915 select SYS_SUPPORTS_LITTLE_ENDIAN 916 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 917 select SYS_HAS_EARLY_PRINTK 918 select SYS_HAS_CPU_CAVIUM_OCTEON 919 select HAVE_PCI 920 select ZONE_DMA32 921 select HOLES_IN_ZONE 922 select GPIOLIB 923 select LIBFDT 924 select USE_OF 925 select ARCH_SPARSEMEM_ENABLE 926 select SYS_SUPPORTS_SMP 927 select NR_CPUS_DEFAULT_64 928 select MIPS_NR_CPU_NR_MAP_1024 929 select BUILTIN_DTB 930 select MTD_COMPLEX_MAPPINGS 931 select SWIOTLB 932 select SYS_SUPPORTS_RELOCATABLE 933 help 934 This option supports all of the Octeon reference boards from Cavium 935 Networks. It builds a kernel that dynamically determines the Octeon 936 CPU type and supports all known board reference implementations. 937 Some of the supported boards are: 938 EBT3000 939 EBH3000 940 EBH3100 941 Thunder 942 Kodama 943 Hikari 944 Say Y here for most Octeon reference boards. 945 946config NLM_XLR_BOARD 947 bool "Netlogic XLR/XLS based systems" 948 select BOOT_ELF32 949 select NLM_COMMON 950 select SYS_HAS_CPU_XLR 951 select SYS_SUPPORTS_SMP 952 select HAVE_PCI 953 select SWAP_IO_SPACE 954 select SYS_SUPPORTS_32BIT_KERNEL 955 select SYS_SUPPORTS_64BIT_KERNEL 956 select PHYS_ADDR_T_64BIT 957 select SYS_SUPPORTS_BIG_ENDIAN 958 select SYS_SUPPORTS_HIGHMEM 959 select NR_CPUS_DEFAULT_32 960 select CEVT_R4K 961 select CSRC_R4K 962 select IRQ_MIPS_CPU 963 select ZONE_DMA32 if 64BIT 964 select SYNC_R4K 965 select SYS_HAS_EARLY_PRINTK 966 select SYS_SUPPORTS_ZBOOT 967 select SYS_SUPPORTS_ZBOOT_UART16550 968 help 969 Support for systems based on Netlogic XLR and XLS processors. 970 Say Y here if you have a XLR or XLS based board. 971 972config NLM_XLP_BOARD 973 bool "Netlogic XLP based systems" 974 select BOOT_ELF32 975 select NLM_COMMON 976 select SYS_HAS_CPU_XLP 977 select SYS_SUPPORTS_SMP 978 select HAVE_PCI 979 select SYS_SUPPORTS_32BIT_KERNEL 980 select SYS_SUPPORTS_64BIT_KERNEL 981 select PHYS_ADDR_T_64BIT 982 select GPIOLIB 983 select SYS_SUPPORTS_BIG_ENDIAN 984 select SYS_SUPPORTS_LITTLE_ENDIAN 985 select SYS_SUPPORTS_HIGHMEM 986 select NR_CPUS_DEFAULT_32 987 select CEVT_R4K 988 select CSRC_R4K 989 select IRQ_MIPS_CPU 990 select ZONE_DMA32 if 64BIT 991 select SYNC_R4K 992 select SYS_HAS_EARLY_PRINTK 993 select USE_OF 994 select SYS_SUPPORTS_ZBOOT 995 select SYS_SUPPORTS_ZBOOT_UART16550 996 help 997 This board is based on Netlogic XLP Processor. 998 Say Y here if you have a XLP based board. 999 1000config MIPS_PARAVIRT 1001 bool "Para-Virtualized guest system" 1002 select CEVT_R4K 1003 select CSRC_R4K 1004 select SYS_SUPPORTS_64BIT_KERNEL 1005 select SYS_SUPPORTS_32BIT_KERNEL 1006 select SYS_SUPPORTS_BIG_ENDIAN 1007 select SYS_SUPPORTS_SMP 1008 select NR_CPUS_DEFAULT_4 1009 select SYS_HAS_EARLY_PRINTK 1010 select SYS_HAS_CPU_MIPS32_R2 1011 select SYS_HAS_CPU_MIPS64_R2 1012 select SYS_HAS_CPU_CAVIUM_OCTEON 1013 select HAVE_PCI 1014 select SWAP_IO_SPACE 1015 help 1016 This option supports guest running under ???? 1017 1018endchoice 1019 1020source "arch/mips/alchemy/Kconfig" 1021source "arch/mips/ath25/Kconfig" 1022source "arch/mips/ath79/Kconfig" 1023source "arch/mips/bcm47xx/Kconfig" 1024source "arch/mips/bcm63xx/Kconfig" 1025source "arch/mips/bmips/Kconfig" 1026source "arch/mips/generic/Kconfig" 1027source "arch/mips/jazz/Kconfig" 1028source "arch/mips/jz4740/Kconfig" 1029source "arch/mips/lantiq/Kconfig" 1030source "arch/mips/lasat/Kconfig" 1031source "arch/mips/pic32/Kconfig" 1032source "arch/mips/pistachio/Kconfig" 1033source "arch/mips/pmcs-msp71xx/Kconfig" 1034source "arch/mips/ralink/Kconfig" 1035source "arch/mips/sgi-ip27/Kconfig" 1036source "arch/mips/sibyte/Kconfig" 1037source "arch/mips/txx9/Kconfig" 1038source "arch/mips/vr41xx/Kconfig" 1039source "arch/mips/cavium-octeon/Kconfig" 1040source "arch/mips/loongson2ef/Kconfig" 1041source "arch/mips/loongson32/Kconfig" 1042source "arch/mips/loongson64/Kconfig" 1043source "arch/mips/netlogic/Kconfig" 1044source "arch/mips/paravirt/Kconfig" 1045 1046endmenu 1047 1048config GENERIC_HWEIGHT 1049 bool 1050 default y 1051 1052config GENERIC_CALIBRATE_DELAY 1053 bool 1054 default y 1055 1056config SCHED_OMIT_FRAME_POINTER 1057 bool 1058 default y 1059 1060# 1061# Select some configuration options automatically based on user selections. 1062# 1063config FW_ARC 1064 bool 1065 1066config ARCH_MAY_HAVE_PC_FDC 1067 bool 1068 1069config BOOT_RAW 1070 bool 1071 1072config CEVT_BCM1480 1073 bool 1074 1075config CEVT_DS1287 1076 bool 1077 1078config CEVT_GT641XX 1079 bool 1080 1081config CEVT_R4K 1082 bool 1083 1084config CEVT_SB1250 1085 bool 1086 1087config CEVT_TXX9 1088 bool 1089 1090config CSRC_BCM1480 1091 bool 1092 1093config CSRC_IOASIC 1094 bool 1095 1096config CSRC_R4K 1097 bool 1098 1099config CSRC_SB1250 1100 bool 1101 1102config MIPS_CLOCK_VSYSCALL 1103 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1104 1105config GPIO_TXX9 1106 select GPIOLIB 1107 bool 1108 1109config FW_CFE 1110 bool 1111 1112config ARCH_SUPPORTS_UPROBES 1113 bool 1114 1115config DMA_MAYBE_COHERENT 1116 select ARCH_HAS_DMA_COHERENCE_H 1117 select DMA_NONCOHERENT 1118 bool 1119 1120config DMA_PERDEV_COHERENT 1121 bool 1122 select ARCH_HAS_SETUP_DMA_OPS 1123 select DMA_NONCOHERENT 1124 1125config DMA_NONCOHERENT 1126 bool 1127 # 1128 # MIPS allows mixing "slightly different" Cacheability and Coherency 1129 # Attribute bits. It is believed that the uncached access through 1130 # KSEG1 and the implementation specific "uncached accelerated" used 1131 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1132 # significant advantages. 1133 # 1134 select ARCH_HAS_DMA_WRITE_COMBINE 1135 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1136 select ARCH_HAS_UNCACHED_SEGMENT 1137 select NEED_DMA_MAP_STATE 1138 select ARCH_HAS_DMA_COHERENT_TO_PFN 1139 select DMA_NONCOHERENT_CACHE_SYNC 1140 1141config SYS_HAS_EARLY_PRINTK 1142 bool 1143 1144config SYS_SUPPORTS_HOTPLUG_CPU 1145 bool 1146 1147config MIPS_BONITO64 1148 bool 1149 1150config MIPS_MSC 1151 bool 1152 1153config MIPS_NILE4 1154 bool 1155 1156config SYNC_R4K 1157 bool 1158 1159config MIPS_MACHINE 1160 def_bool n 1161 1162config NO_IOPORT_MAP 1163 def_bool n 1164 1165config GENERIC_CSUM 1166 bool 1167 default y if !CPU_HAS_LOAD_STORE_LR 1168 1169config GENERIC_ISA_DMA 1170 bool 1171 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1172 select ISA_DMA_API 1173 1174config GENERIC_ISA_DMA_SUPPORT_BROKEN 1175 bool 1176 select GENERIC_ISA_DMA 1177 1178config ISA_DMA_API 1179 bool 1180 1181config HOLES_IN_ZONE 1182 bool 1183 1184config SYS_SUPPORTS_RELOCATABLE 1185 bool 1186 help 1187 Selected if the platform supports relocating the kernel. 1188 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1189 to allow access to command line and entropy sources. 1190 1191config MIPS_CBPF_JIT 1192 def_bool y 1193 depends on BPF_JIT && HAVE_CBPF_JIT 1194 1195config MIPS_EBPF_JIT 1196 def_bool y 1197 depends on BPF_JIT && HAVE_EBPF_JIT 1198 1199 1200# 1201# Endianness selection. Sufficiently obscure so many users don't know what to 1202# answer,so we try hard to limit the available choices. Also the use of a 1203# choice statement should be more obvious to the user. 1204# 1205choice 1206 prompt "Endianness selection" 1207 help 1208 Some MIPS machines can be configured for either little or big endian 1209 byte order. These modes require different kernels and a different 1210 Linux distribution. In general there is one preferred byteorder for a 1211 particular system but some systems are just as commonly used in the 1212 one or the other endianness. 1213 1214config CPU_BIG_ENDIAN 1215 bool "Big endian" 1216 depends on SYS_SUPPORTS_BIG_ENDIAN 1217 1218config CPU_LITTLE_ENDIAN 1219 bool "Little endian" 1220 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1221 1222endchoice 1223 1224config EXPORT_UASM 1225 bool 1226 1227config SYS_SUPPORTS_APM_EMULATION 1228 bool 1229 1230config SYS_SUPPORTS_BIG_ENDIAN 1231 bool 1232 1233config SYS_SUPPORTS_LITTLE_ENDIAN 1234 bool 1235 1236config SYS_SUPPORTS_HUGETLBFS 1237 bool 1238 depends on CPU_SUPPORTS_HUGEPAGES 1239 default y 1240 1241config MIPS_HUGE_TLB_SUPPORT 1242 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1243 1244config IRQ_CPU_RM7K 1245 bool 1246 1247config IRQ_MSP_SLP 1248 bool 1249 1250config IRQ_MSP_CIC 1251 bool 1252 1253config IRQ_TXX9 1254 bool 1255 1256config IRQ_GT641XX 1257 bool 1258 1259config PCI_GT64XXX_PCI0 1260 bool 1261 1262config PCI_XTALK_BRIDGE 1263 bool 1264 1265config NO_EXCEPT_FILL 1266 bool 1267 1268config SOC_EMMA2RH 1269 bool 1270 select CEVT_R4K 1271 select CSRC_R4K 1272 select DMA_NONCOHERENT 1273 select IRQ_MIPS_CPU 1274 select SWAP_IO_SPACE 1275 select SYS_HAS_CPU_R5500 1276 select SYS_SUPPORTS_32BIT_KERNEL 1277 select SYS_SUPPORTS_64BIT_KERNEL 1278 select SYS_SUPPORTS_BIG_ENDIAN 1279 1280config SOC_PNX833X 1281 bool 1282 select CEVT_R4K 1283 select CSRC_R4K 1284 select IRQ_MIPS_CPU 1285 select DMA_NONCOHERENT 1286 select SYS_HAS_CPU_MIPS32_R2 1287 select SYS_SUPPORTS_32BIT_KERNEL 1288 select SYS_SUPPORTS_LITTLE_ENDIAN 1289 select SYS_SUPPORTS_BIG_ENDIAN 1290 select SYS_SUPPORTS_MIPS16 1291 select CPU_MIPSR2_IRQ_VI 1292 1293config SOC_PNX8335 1294 bool 1295 select SOC_PNX833X 1296 1297config MIPS_SPRAM 1298 bool 1299 1300config SWAP_IO_SPACE 1301 bool 1302 1303config SGI_HAS_INDYDOG 1304 bool 1305 1306config SGI_HAS_HAL2 1307 bool 1308 1309config SGI_HAS_SEEQ 1310 bool 1311 1312config SGI_HAS_WD93 1313 bool 1314 1315config SGI_HAS_ZILOG 1316 bool 1317 1318config SGI_HAS_I8042 1319 bool 1320 1321config DEFAULT_SGI_PARTITION 1322 bool 1323 1324config FW_ARC32 1325 bool 1326 1327config FW_SNIPROM 1328 bool 1329 1330config BOOT_ELF32 1331 bool 1332 1333config MIPS_L1_CACHE_SHIFT_4 1334 bool 1335 1336config MIPS_L1_CACHE_SHIFT_5 1337 bool 1338 1339config MIPS_L1_CACHE_SHIFT_6 1340 bool 1341 1342config MIPS_L1_CACHE_SHIFT_7 1343 bool 1344 1345config MIPS_L1_CACHE_SHIFT 1346 int 1347 default "7" if MIPS_L1_CACHE_SHIFT_7 1348 default "6" if MIPS_L1_CACHE_SHIFT_6 1349 default "5" if MIPS_L1_CACHE_SHIFT_5 1350 default "4" if MIPS_L1_CACHE_SHIFT_4 1351 default "5" 1352 1353config HAVE_STD_PC_SERIAL_PORT 1354 bool 1355 1356config ARC_CMDLINE_ONLY 1357 bool 1358 1359config ARC_CONSOLE 1360 bool "ARC console support" 1361 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1362 1363config ARC_MEMORY 1364 bool 1365 1366config ARC_PROMLIB 1367 bool 1368 1369config FW_ARC64 1370 bool 1371 1372config BOOT_ELF64 1373 bool 1374 1375menu "CPU selection" 1376 1377choice 1378 prompt "CPU type" 1379 default CPU_R4X00 1380 1381config CPU_LOONGSON64 1382 bool "Loongson GSx64 CPU" 1383 depends on SYS_HAS_CPU_LOONGSON64 1384 select ARCH_HAS_PHYS_TO_DMA 1385 select CPU_SUPPORTS_64BIT_KERNEL 1386 select CPU_SUPPORTS_HIGHMEM 1387 select CPU_SUPPORTS_HUGEPAGES 1388 select CPU_SUPPORTS_MSA 1389 select CPU_HAS_LOAD_STORE_LR 1390 select WEAK_ORDERING 1391 select WEAK_REORDERING_BEYOND_LLSC 1392 select MIPS_ASID_BITS_VARIABLE 1393 select MIPS_PGD_C0_CONTEXT 1394 select MIPS_L1_CACHE_SHIFT_6 1395 select GPIOLIB 1396 select SWIOTLB 1397 help 1398 The Loongson GSx64 series of processor cores implements the 1399 MIPS64R2 instruction set with many extensions. 1400 1401config LOONGSON64_ENHANCEMENT 1402 bool "New Loongson GSx64E CPU Enhancements" 1403 default n 1404 select CPU_MIPSR2 1405 select CPU_HAS_PREFETCH 1406 depends on CPU_LOONGSON64 1407 help 1408 New Loongson GSx64E cores (since Loongson-3A R2, as opposed to Loongson-3A 1409 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1410 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1411 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1412 Fast TLB refill support, etc. 1413 1414 This option enable those enhancements which are not probed at run 1415 time. If you want a generic kernel to run on all Loongson 3 machines, 1416 please say 'N' here. If you want a high-performance kernel to run on 1417 new Loongson 3 machines only, please say 'Y' here. 1418 1419config CPU_LOONGSON3_WORKAROUNDS 1420 bool "Old Loongson 3 LLSC Workarounds" 1421 default y if SMP 1422 depends on CPU_LOONGSON64 1423 help 1424 Loongson 3 processors have the llsc issues which require workarounds. 1425 Without workarounds the system may hang unexpectedly. 1426 1427 Newer Loongson 3 will fix these issues and no workarounds are needed. 1428 The workarounds have no significant side effect on them but may 1429 decrease the performance of the system so this option should be 1430 disabled unless the kernel is intended to be run on old systems. 1431 1432 If unsure, please say Y. 1433 1434config CPU_LOONGSON2E 1435 bool "Loongson 2E" 1436 depends on SYS_HAS_CPU_LOONGSON2E 1437 select CPU_LOONGSON2EF 1438 help 1439 The Loongson 2E processor implements the MIPS III instruction set 1440 with many extensions. 1441 1442 It has an internal FPGA northbridge, which is compatible to 1443 bonito64. 1444 1445config CPU_LOONGSON2F 1446 bool "Loongson 2F" 1447 depends on SYS_HAS_CPU_LOONGSON2F 1448 select CPU_LOONGSON2EF 1449 select GPIOLIB 1450 help 1451 The Loongson 2F processor implements the MIPS III instruction set 1452 with many extensions. 1453 1454 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1455 have a similar programming interface with FPGA northbridge used in 1456 Loongson2E. 1457 1458config CPU_LOONGSON1B 1459 bool "Loongson 1B" 1460 depends on SYS_HAS_CPU_LOONGSON1B 1461 select CPU_LOONGSON1 1462 select LEDS_GPIO_REGISTER 1463 help 1464 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1465 Release 1 instruction set and part of the MIPS32 Release 2 1466 instruction set. 1467 1468config CPU_LOONGSON1C 1469 bool "Loongson 1C" 1470 depends on SYS_HAS_CPU_LOONGSON1C 1471 select CPU_LOONGSON1 1472 select LEDS_GPIO_REGISTER 1473 help 1474 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1475 Release 1 instruction set and part of the MIPS32 Release 2 1476 instruction set. 1477 1478config CPU_MIPS32_R1 1479 bool "MIPS32 Release 1" 1480 depends on SYS_HAS_CPU_MIPS32_R1 1481 select CPU_HAS_PREFETCH 1482 select CPU_HAS_LOAD_STORE_LR 1483 select CPU_SUPPORTS_32BIT_KERNEL 1484 select CPU_SUPPORTS_HIGHMEM 1485 help 1486 Choose this option to build a kernel for release 1 or later of the 1487 MIPS32 architecture. Most modern embedded systems with a 32-bit 1488 MIPS processor are based on a MIPS32 processor. If you know the 1489 specific type of processor in your system, choose those that one 1490 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1491 Release 2 of the MIPS32 architecture is available since several 1492 years so chances are you even have a MIPS32 Release 2 processor 1493 in which case you should choose CPU_MIPS32_R2 instead for better 1494 performance. 1495 1496config CPU_MIPS32_R2 1497 bool "MIPS32 Release 2" 1498 depends on SYS_HAS_CPU_MIPS32_R2 1499 select CPU_HAS_PREFETCH 1500 select CPU_HAS_LOAD_STORE_LR 1501 select CPU_SUPPORTS_32BIT_KERNEL 1502 select CPU_SUPPORTS_HIGHMEM 1503 select CPU_SUPPORTS_MSA 1504 select HAVE_KVM 1505 help 1506 Choose this option to build a kernel for release 2 or later of the 1507 MIPS32 architecture. Most modern embedded systems with a 32-bit 1508 MIPS processor are based on a MIPS32 processor. If you know the 1509 specific type of processor in your system, choose those that one 1510 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1511 1512config CPU_MIPS32_R6 1513 bool "MIPS32 Release 6" 1514 depends on SYS_HAS_CPU_MIPS32_R6 1515 select CPU_HAS_PREFETCH 1516 select CPU_SUPPORTS_32BIT_KERNEL 1517 select CPU_SUPPORTS_HIGHMEM 1518 select CPU_SUPPORTS_MSA 1519 select HAVE_KVM 1520 select MIPS_O32_FP64_SUPPORT 1521 help 1522 Choose this option to build a kernel for release 6 or later of the 1523 MIPS32 architecture. New MIPS processors, starting with the Warrior 1524 family, are based on a MIPS32r6 processor. If you own an older 1525 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1526 1527config CPU_MIPS64_R1 1528 bool "MIPS64 Release 1" 1529 depends on SYS_HAS_CPU_MIPS64_R1 1530 select CPU_HAS_PREFETCH 1531 select CPU_HAS_LOAD_STORE_LR 1532 select CPU_SUPPORTS_32BIT_KERNEL 1533 select CPU_SUPPORTS_64BIT_KERNEL 1534 select CPU_SUPPORTS_HIGHMEM 1535 select CPU_SUPPORTS_HUGEPAGES 1536 help 1537 Choose this option to build a kernel for release 1 or later of the 1538 MIPS64 architecture. Many modern embedded systems with a 64-bit 1539 MIPS processor are based on a MIPS64 processor. If you know the 1540 specific type of processor in your system, choose those that one 1541 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1542 Release 2 of the MIPS64 architecture is available since several 1543 years so chances are you even have a MIPS64 Release 2 processor 1544 in which case you should choose CPU_MIPS64_R2 instead for better 1545 performance. 1546 1547config CPU_MIPS64_R2 1548 bool "MIPS64 Release 2" 1549 depends on SYS_HAS_CPU_MIPS64_R2 1550 select CPU_HAS_PREFETCH 1551 select CPU_HAS_LOAD_STORE_LR 1552 select CPU_SUPPORTS_32BIT_KERNEL 1553 select CPU_SUPPORTS_64BIT_KERNEL 1554 select CPU_SUPPORTS_HIGHMEM 1555 select CPU_SUPPORTS_HUGEPAGES 1556 select CPU_SUPPORTS_MSA 1557 select HAVE_KVM 1558 help 1559 Choose this option to build a kernel for release 2 or later of the 1560 MIPS64 architecture. Many modern embedded systems with a 64-bit 1561 MIPS processor are based on a MIPS64 processor. If you know the 1562 specific type of processor in your system, choose those that one 1563 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1564 1565config CPU_MIPS64_R6 1566 bool "MIPS64 Release 6" 1567 depends on SYS_HAS_CPU_MIPS64_R6 1568 select CPU_HAS_PREFETCH 1569 select CPU_SUPPORTS_32BIT_KERNEL 1570 select CPU_SUPPORTS_64BIT_KERNEL 1571 select CPU_SUPPORTS_HIGHMEM 1572 select CPU_SUPPORTS_HUGEPAGES 1573 select CPU_SUPPORTS_MSA 1574 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1575 select HAVE_KVM 1576 help 1577 Choose this option to build a kernel for release 6 or later of the 1578 MIPS64 architecture. New MIPS processors, starting with the Warrior 1579 family, are based on a MIPS64r6 processor. If you own an older 1580 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1581 1582config CPU_R3000 1583 bool "R3000" 1584 depends on SYS_HAS_CPU_R3000 1585 select CPU_HAS_WB 1586 select CPU_HAS_LOAD_STORE_LR 1587 select CPU_R3K_TLB 1588 select CPU_SUPPORTS_32BIT_KERNEL 1589 select CPU_SUPPORTS_HIGHMEM 1590 help 1591 Please make sure to pick the right CPU type. Linux/MIPS is not 1592 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1593 *not* work on R4000 machines and vice versa. However, since most 1594 of the supported machines have an R4000 (or similar) CPU, R4x00 1595 might be a safe bet. If the resulting kernel does not work, 1596 try to recompile with R3000. 1597 1598config CPU_TX39XX 1599 bool "R39XX" 1600 depends on SYS_HAS_CPU_TX39XX 1601 select CPU_SUPPORTS_32BIT_KERNEL 1602 select CPU_HAS_LOAD_STORE_LR 1603 select CPU_R3K_TLB 1604 1605config CPU_VR41XX 1606 bool "R41xx" 1607 depends on SYS_HAS_CPU_VR41XX 1608 select CPU_SUPPORTS_32BIT_KERNEL 1609 select CPU_SUPPORTS_64BIT_KERNEL 1610 select CPU_HAS_LOAD_STORE_LR 1611 help 1612 The options selects support for the NEC VR4100 series of processors. 1613 Only choose this option if you have one of these processors as a 1614 kernel built with this option will not run on any other type of 1615 processor or vice versa. 1616 1617config CPU_R4X00 1618 bool "R4x00" 1619 depends on SYS_HAS_CPU_R4X00 1620 select CPU_SUPPORTS_32BIT_KERNEL 1621 select CPU_SUPPORTS_64BIT_KERNEL 1622 select CPU_SUPPORTS_HUGEPAGES 1623 select CPU_HAS_LOAD_STORE_LR 1624 help 1625 MIPS Technologies R4000-series processors other than 4300, including 1626 the R4000, R4400, R4600, and 4700. 1627 1628config CPU_TX49XX 1629 bool "R49XX" 1630 depends on SYS_HAS_CPU_TX49XX 1631 select CPU_HAS_PREFETCH 1632 select CPU_HAS_LOAD_STORE_LR 1633 select CPU_SUPPORTS_32BIT_KERNEL 1634 select CPU_SUPPORTS_64BIT_KERNEL 1635 select CPU_SUPPORTS_HUGEPAGES 1636 1637config CPU_R5000 1638 bool "R5000" 1639 depends on SYS_HAS_CPU_R5000 1640 select CPU_SUPPORTS_32BIT_KERNEL 1641 select CPU_SUPPORTS_64BIT_KERNEL 1642 select CPU_SUPPORTS_HUGEPAGES 1643 select CPU_HAS_LOAD_STORE_LR 1644 help 1645 MIPS Technologies R5000-series processors other than the Nevada. 1646 1647config CPU_R5500 1648 bool "R5500" 1649 depends on SYS_HAS_CPU_R5500 1650 select CPU_SUPPORTS_32BIT_KERNEL 1651 select CPU_SUPPORTS_64BIT_KERNEL 1652 select CPU_SUPPORTS_HUGEPAGES 1653 select CPU_HAS_LOAD_STORE_LR 1654 help 1655 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1656 instruction set. 1657 1658config CPU_NEVADA 1659 bool "RM52xx" 1660 depends on SYS_HAS_CPU_NEVADA 1661 select CPU_SUPPORTS_32BIT_KERNEL 1662 select CPU_SUPPORTS_64BIT_KERNEL 1663 select CPU_SUPPORTS_HUGEPAGES 1664 select CPU_HAS_LOAD_STORE_LR 1665 help 1666 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1667 1668config CPU_R10000 1669 bool "R10000" 1670 depends on SYS_HAS_CPU_R10000 1671 select CPU_HAS_PREFETCH 1672 select CPU_HAS_LOAD_STORE_LR 1673 select CPU_SUPPORTS_32BIT_KERNEL 1674 select CPU_SUPPORTS_64BIT_KERNEL 1675 select CPU_SUPPORTS_HIGHMEM 1676 select CPU_SUPPORTS_HUGEPAGES 1677 help 1678 MIPS Technologies R10000-series processors. 1679 1680config CPU_RM7000 1681 bool "RM7000" 1682 depends on SYS_HAS_CPU_RM7000 1683 select CPU_HAS_PREFETCH 1684 select CPU_HAS_LOAD_STORE_LR 1685 select CPU_SUPPORTS_32BIT_KERNEL 1686 select CPU_SUPPORTS_64BIT_KERNEL 1687 select CPU_SUPPORTS_HIGHMEM 1688 select CPU_SUPPORTS_HUGEPAGES 1689 1690config CPU_SB1 1691 bool "SB1" 1692 depends on SYS_HAS_CPU_SB1 1693 select CPU_HAS_LOAD_STORE_LR 1694 select CPU_SUPPORTS_32BIT_KERNEL 1695 select CPU_SUPPORTS_64BIT_KERNEL 1696 select CPU_SUPPORTS_HIGHMEM 1697 select CPU_SUPPORTS_HUGEPAGES 1698 select WEAK_ORDERING 1699 1700config CPU_CAVIUM_OCTEON 1701 bool "Cavium Octeon processor" 1702 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1703 select CPU_HAS_PREFETCH 1704 select CPU_HAS_LOAD_STORE_LR 1705 select CPU_SUPPORTS_64BIT_KERNEL 1706 select WEAK_ORDERING 1707 select CPU_SUPPORTS_HIGHMEM 1708 select CPU_SUPPORTS_HUGEPAGES 1709 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1710 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1711 select MIPS_L1_CACHE_SHIFT_7 1712 select HAVE_KVM 1713 help 1714 The Cavium Octeon processor is a highly integrated chip containing 1715 many ethernet hardware widgets for networking tasks. The processor 1716 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1717 Full details can be found at http://www.caviumnetworks.com. 1718 1719config CPU_BMIPS 1720 bool "Broadcom BMIPS" 1721 depends on SYS_HAS_CPU_BMIPS 1722 select CPU_MIPS32 1723 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1724 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1725 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1726 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1727 select CPU_SUPPORTS_32BIT_KERNEL 1728 select DMA_NONCOHERENT 1729 select IRQ_MIPS_CPU 1730 select SWAP_IO_SPACE 1731 select WEAK_ORDERING 1732 select CPU_SUPPORTS_HIGHMEM 1733 select CPU_HAS_PREFETCH 1734 select CPU_HAS_LOAD_STORE_LR 1735 select CPU_SUPPORTS_CPUFREQ 1736 select MIPS_EXTERNAL_TIMER 1737 help 1738 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1739 1740config CPU_XLR 1741 bool "Netlogic XLR SoC" 1742 depends on SYS_HAS_CPU_XLR 1743 select CPU_HAS_LOAD_STORE_LR 1744 select CPU_SUPPORTS_32BIT_KERNEL 1745 select CPU_SUPPORTS_64BIT_KERNEL 1746 select CPU_SUPPORTS_HIGHMEM 1747 select CPU_SUPPORTS_HUGEPAGES 1748 select WEAK_ORDERING 1749 select WEAK_REORDERING_BEYOND_LLSC 1750 help 1751 Netlogic Microsystems XLR/XLS processors. 1752 1753config CPU_XLP 1754 bool "Netlogic XLP SoC" 1755 depends on SYS_HAS_CPU_XLP 1756 select CPU_SUPPORTS_32BIT_KERNEL 1757 select CPU_SUPPORTS_64BIT_KERNEL 1758 select CPU_SUPPORTS_HIGHMEM 1759 select WEAK_ORDERING 1760 select WEAK_REORDERING_BEYOND_LLSC 1761 select CPU_HAS_PREFETCH 1762 select CPU_HAS_LOAD_STORE_LR 1763 select CPU_MIPSR2 1764 select CPU_SUPPORTS_HUGEPAGES 1765 select MIPS_ASID_BITS_VARIABLE 1766 help 1767 Netlogic Microsystems XLP processors. 1768endchoice 1769 1770config CPU_MIPS32_3_5_FEATURES 1771 bool "MIPS32 Release 3.5 Features" 1772 depends on SYS_HAS_CPU_MIPS32_R3_5 1773 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1774 help 1775 Choose this option to build a kernel for release 2 or later of the 1776 MIPS32 architecture including features from the 3.5 release such as 1777 support for Enhanced Virtual Addressing (EVA). 1778 1779config CPU_MIPS32_3_5_EVA 1780 bool "Enhanced Virtual Addressing (EVA)" 1781 depends on CPU_MIPS32_3_5_FEATURES 1782 select EVA 1783 default y 1784 help 1785 Choose this option if you want to enable the Enhanced Virtual 1786 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1787 One of its primary benefits is an increase in the maximum size 1788 of lowmem (up to 3GB). If unsure, say 'N' here. 1789 1790config CPU_MIPS32_R5_FEATURES 1791 bool "MIPS32 Release 5 Features" 1792 depends on SYS_HAS_CPU_MIPS32_R5 1793 depends on CPU_MIPS32_R2 1794 help 1795 Choose this option to build a kernel for release 2 or later of the 1796 MIPS32 architecture including features from release 5 such as 1797 support for Extended Physical Addressing (XPA). 1798 1799config CPU_MIPS32_R5_XPA 1800 bool "Extended Physical Addressing (XPA)" 1801 depends on CPU_MIPS32_R5_FEATURES 1802 depends on !EVA 1803 depends on !PAGE_SIZE_4KB 1804 depends on SYS_SUPPORTS_HIGHMEM 1805 select XPA 1806 select HIGHMEM 1807 select PHYS_ADDR_T_64BIT 1808 default n 1809 help 1810 Choose this option if you want to enable the Extended Physical 1811 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1812 benefit is to increase physical addressing equal to or greater 1813 than 40 bits. Note that this has the side effect of turning on 1814 64-bit addressing which in turn makes the PTEs 64-bit in size. 1815 If unsure, say 'N' here. 1816 1817if CPU_LOONGSON2F 1818config CPU_NOP_WORKAROUNDS 1819 bool 1820 1821config CPU_JUMP_WORKAROUNDS 1822 bool 1823 1824config CPU_LOONGSON2F_WORKAROUNDS 1825 bool "Loongson 2F Workarounds" 1826 default y 1827 select CPU_NOP_WORKAROUNDS 1828 select CPU_JUMP_WORKAROUNDS 1829 help 1830 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1831 require workarounds. Without workarounds the system may hang 1832 unexpectedly. For more information please refer to the gas 1833 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1834 1835 Loongson 2F03 and later have fixed these issues and no workarounds 1836 are needed. The workarounds have no significant side effect on them 1837 but may decrease the performance of the system so this option should 1838 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1839 systems. 1840 1841 If unsure, please say Y. 1842endif # CPU_LOONGSON2F 1843 1844config SYS_SUPPORTS_ZBOOT 1845 bool 1846 select HAVE_KERNEL_GZIP 1847 select HAVE_KERNEL_BZIP2 1848 select HAVE_KERNEL_LZ4 1849 select HAVE_KERNEL_LZMA 1850 select HAVE_KERNEL_LZO 1851 select HAVE_KERNEL_XZ 1852 1853config SYS_SUPPORTS_ZBOOT_UART16550 1854 bool 1855 select SYS_SUPPORTS_ZBOOT 1856 1857config SYS_SUPPORTS_ZBOOT_UART_PROM 1858 bool 1859 select SYS_SUPPORTS_ZBOOT 1860 1861config CPU_LOONGSON2EF 1862 bool 1863 select CPU_SUPPORTS_32BIT_KERNEL 1864 select CPU_SUPPORTS_64BIT_KERNEL 1865 select CPU_SUPPORTS_HIGHMEM 1866 select CPU_SUPPORTS_HUGEPAGES 1867 select ARCH_HAS_PHYS_TO_DMA 1868 select CPU_HAS_LOAD_STORE_LR 1869 1870config CPU_LOONGSON1 1871 bool 1872 select CPU_MIPS32 1873 select CPU_MIPSR2 1874 select CPU_HAS_PREFETCH 1875 select CPU_HAS_LOAD_STORE_LR 1876 select CPU_SUPPORTS_32BIT_KERNEL 1877 select CPU_SUPPORTS_HIGHMEM 1878 select CPU_SUPPORTS_CPUFREQ 1879 1880config CPU_BMIPS32_3300 1881 select SMP_UP if SMP 1882 bool 1883 1884config CPU_BMIPS4350 1885 bool 1886 select SYS_SUPPORTS_SMP 1887 select SYS_SUPPORTS_HOTPLUG_CPU 1888 1889config CPU_BMIPS4380 1890 bool 1891 select MIPS_L1_CACHE_SHIFT_6 1892 select SYS_SUPPORTS_SMP 1893 select SYS_SUPPORTS_HOTPLUG_CPU 1894 select CPU_HAS_RIXI 1895 1896config CPU_BMIPS5000 1897 bool 1898 select MIPS_CPU_SCACHE 1899 select MIPS_L1_CACHE_SHIFT_7 1900 select SYS_SUPPORTS_SMP 1901 select SYS_SUPPORTS_HOTPLUG_CPU 1902 select CPU_HAS_RIXI 1903 1904config SYS_HAS_CPU_LOONGSON64 1905 bool 1906 select CPU_SUPPORTS_CPUFREQ 1907 select CPU_HAS_RIXI 1908 1909config SYS_HAS_CPU_LOONGSON2E 1910 bool 1911 1912config SYS_HAS_CPU_LOONGSON2F 1913 bool 1914 select CPU_SUPPORTS_CPUFREQ 1915 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1916 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1917 1918config SYS_HAS_CPU_LOONGSON1B 1919 bool 1920 1921config SYS_HAS_CPU_LOONGSON1C 1922 bool 1923 1924config SYS_HAS_CPU_MIPS32_R1 1925 bool 1926 1927config SYS_HAS_CPU_MIPS32_R2 1928 bool 1929 1930config SYS_HAS_CPU_MIPS32_R3_5 1931 bool 1932 1933config SYS_HAS_CPU_MIPS32_R5 1934 bool 1935 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1936 1937config SYS_HAS_CPU_MIPS32_R6 1938 bool 1939 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1940 1941config SYS_HAS_CPU_MIPS64_R1 1942 bool 1943 1944config SYS_HAS_CPU_MIPS64_R2 1945 bool 1946 1947config SYS_HAS_CPU_MIPS64_R6 1948 bool 1949 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1950 1951config SYS_HAS_CPU_R3000 1952 bool 1953 1954config SYS_HAS_CPU_TX39XX 1955 bool 1956 1957config SYS_HAS_CPU_VR41XX 1958 bool 1959 1960config SYS_HAS_CPU_R4X00 1961 bool 1962 1963config SYS_HAS_CPU_TX49XX 1964 bool 1965 1966config SYS_HAS_CPU_R5000 1967 bool 1968 1969config SYS_HAS_CPU_R5500 1970 bool 1971 1972config SYS_HAS_CPU_NEVADA 1973 bool 1974 1975config SYS_HAS_CPU_R10000 1976 bool 1977 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1978 1979config SYS_HAS_CPU_RM7000 1980 bool 1981 1982config SYS_HAS_CPU_SB1 1983 bool 1984 1985config SYS_HAS_CPU_CAVIUM_OCTEON 1986 bool 1987 1988config SYS_HAS_CPU_BMIPS 1989 bool 1990 1991config SYS_HAS_CPU_BMIPS32_3300 1992 bool 1993 select SYS_HAS_CPU_BMIPS 1994 1995config SYS_HAS_CPU_BMIPS4350 1996 bool 1997 select SYS_HAS_CPU_BMIPS 1998 1999config SYS_HAS_CPU_BMIPS4380 2000 bool 2001 select SYS_HAS_CPU_BMIPS 2002 2003config SYS_HAS_CPU_BMIPS5000 2004 bool 2005 select SYS_HAS_CPU_BMIPS 2006 select ARCH_HAS_SYNC_DMA_FOR_CPU 2007 2008config SYS_HAS_CPU_XLR 2009 bool 2010 2011config SYS_HAS_CPU_XLP 2012 bool 2013 2014# 2015# CPU may reorder R->R, R->W, W->R, W->W 2016# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2017# 2018config WEAK_ORDERING 2019 bool 2020 2021# 2022# CPU may reorder reads and writes beyond LL/SC 2023# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2024# 2025config WEAK_REORDERING_BEYOND_LLSC 2026 bool 2027endmenu 2028 2029# 2030# These two indicate any level of the MIPS32 and MIPS64 architecture 2031# 2032config CPU_MIPS32 2033 bool 2034 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2035 2036config CPU_MIPS64 2037 bool 2038 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2039 2040# 2041# These indicate the revision of the architecture 2042# 2043config CPU_MIPSR1 2044 bool 2045 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2046 2047config CPU_MIPSR2 2048 bool 2049 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2050 select CPU_HAS_RIXI 2051 select MIPS_SPRAM 2052 2053config CPU_MIPSR6 2054 bool 2055 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2056 select CPU_HAS_RIXI 2057 select HAVE_ARCH_BITREVERSE 2058 select MIPS_ASID_BITS_VARIABLE 2059 select MIPS_CRC_SUPPORT 2060 select MIPS_SPRAM 2061 2062config TARGET_ISA_REV 2063 int 2064 default 1 if CPU_MIPSR1 2065 default 2 if CPU_MIPSR2 2066 default 6 if CPU_MIPSR6 2067 default 0 2068 help 2069 Reflects the ISA revision being targeted by the kernel build. This 2070 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2071 2072config EVA 2073 bool 2074 2075config XPA 2076 bool 2077 2078config SYS_SUPPORTS_32BIT_KERNEL 2079 bool 2080config SYS_SUPPORTS_64BIT_KERNEL 2081 bool 2082config CPU_SUPPORTS_32BIT_KERNEL 2083 bool 2084config CPU_SUPPORTS_64BIT_KERNEL 2085 bool 2086config CPU_SUPPORTS_CPUFREQ 2087 bool 2088config CPU_SUPPORTS_ADDRWINCFG 2089 bool 2090config CPU_SUPPORTS_HUGEPAGES 2091 bool 2092 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2093config CPU_SUPPORTS_UNCACHED_ACCELERATED 2094 bool 2095config MIPS_PGD_C0_CONTEXT 2096 bool 2097 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2098 2099# 2100# Set to y for ptrace access to watch registers. 2101# 2102config HARDWARE_WATCHPOINTS 2103 bool 2104 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2105 2106menu "Kernel type" 2107 2108choice 2109 prompt "Kernel code model" 2110 help 2111 You should only select this option if you have a workload that 2112 actually benefits from 64-bit processing or if your machine has 2113 large memory. You will only be presented a single option in this 2114 menu if your system does not support both 32-bit and 64-bit kernels. 2115 2116config 32BIT 2117 bool "32-bit kernel" 2118 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2119 select TRAD_SIGNALS 2120 help 2121 Select this option if you want to build a 32-bit kernel. 2122 2123config 64BIT 2124 bool "64-bit kernel" 2125 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2126 help 2127 Select this option if you want to build a 64-bit kernel. 2128 2129endchoice 2130 2131config KVM_GUEST 2132 bool "KVM Guest Kernel" 2133 depends on BROKEN_ON_SMP 2134 help 2135 Select this option if building a guest kernel for KVM (Trap & Emulate) 2136 mode. 2137 2138config KVM_GUEST_TIMER_FREQ 2139 int "Count/Compare Timer Frequency (MHz)" 2140 depends on KVM_GUEST 2141 default 100 2142 help 2143 Set this to non-zero if building a guest kernel for KVM to skip RTC 2144 emulation when determining guest CPU Frequency. Instead, the guest's 2145 timer frequency is specified directly. 2146 2147config MIPS_VA_BITS_48 2148 bool "48 bits virtual memory" 2149 depends on 64BIT 2150 help 2151 Support a maximum at least 48 bits of application virtual 2152 memory. Default is 40 bits or less, depending on the CPU. 2153 For page sizes 16k and above, this option results in a small 2154 memory overhead for page tables. For 4k page size, a fourth 2155 level of page tables is added which imposes both a memory 2156 overhead as well as slower TLB fault handling. 2157 2158 If unsure, say N. 2159 2160choice 2161 prompt "Kernel page size" 2162 default PAGE_SIZE_4KB 2163 2164config PAGE_SIZE_4KB 2165 bool "4kB" 2166 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2167 help 2168 This option select the standard 4kB Linux page size. On some 2169 R3000-family processors this is the only available page size. Using 2170 4kB page size will minimize memory consumption and is therefore 2171 recommended for low memory systems. 2172 2173config PAGE_SIZE_8KB 2174 bool "8kB" 2175 depends on CPU_CAVIUM_OCTEON 2176 depends on !MIPS_VA_BITS_48 2177 help 2178 Using 8kB page size will result in higher performance kernel at 2179 the price of higher memory consumption. This option is available 2180 only on cnMIPS processors. Note that you will need a suitable Linux 2181 distribution to support this. 2182 2183config PAGE_SIZE_16KB 2184 bool "16kB" 2185 depends on !CPU_R3000 && !CPU_TX39XX 2186 help 2187 Using 16kB page size will result in higher performance kernel at 2188 the price of higher memory consumption. This option is available on 2189 all non-R3000 family processors. Note that you will need a suitable 2190 Linux distribution to support this. 2191 2192config PAGE_SIZE_32KB 2193 bool "32kB" 2194 depends on CPU_CAVIUM_OCTEON 2195 depends on !MIPS_VA_BITS_48 2196 help 2197 Using 32kB page size will result in higher performance kernel at 2198 the price of higher memory consumption. This option is available 2199 only on cnMIPS cores. Note that you will need a suitable Linux 2200 distribution to support this. 2201 2202config PAGE_SIZE_64KB 2203 bool "64kB" 2204 depends on !CPU_R3000 && !CPU_TX39XX 2205 help 2206 Using 64kB page size will result in higher performance kernel at 2207 the price of higher memory consumption. This option is available on 2208 all non-R3000 family processor. Not that at the time of this 2209 writing this option is still high experimental. 2210 2211endchoice 2212 2213config FORCE_MAX_ZONEORDER 2214 int "Maximum zone order" 2215 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2216 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2217 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2218 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2219 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2220 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2221 range 11 64 2222 default "11" 2223 help 2224 The kernel memory allocator divides physically contiguous memory 2225 blocks into "zones", where each zone is a power of two number of 2226 pages. This option selects the largest power of two that the kernel 2227 keeps in the memory allocator. If you need to allocate very large 2228 blocks of physically contiguous memory, then you may need to 2229 increase this value. 2230 2231 This config option is actually maximum order plus one. For example, 2232 a value of 11 means that the largest free memory block is 2^10 pages. 2233 2234 The page size is not necessarily 4KB. Keep this in mind 2235 when choosing a value for this option. 2236 2237config BOARD_SCACHE 2238 bool 2239 2240config IP22_CPU_SCACHE 2241 bool 2242 select BOARD_SCACHE 2243 2244# 2245# Support for a MIPS32 / MIPS64 style S-caches 2246# 2247config MIPS_CPU_SCACHE 2248 bool 2249 select BOARD_SCACHE 2250 2251config R5000_CPU_SCACHE 2252 bool 2253 select BOARD_SCACHE 2254 2255config RM7000_CPU_SCACHE 2256 bool 2257 select BOARD_SCACHE 2258 2259config SIBYTE_DMA_PAGEOPS 2260 bool "Use DMA to clear/copy pages" 2261 depends on CPU_SB1 2262 help 2263 Instead of using the CPU to zero and copy pages, use a Data Mover 2264 channel. These DMA channels are otherwise unused by the standard 2265 SiByte Linux port. Seems to give a small performance benefit. 2266 2267config CPU_HAS_PREFETCH 2268 bool 2269 2270config CPU_GENERIC_DUMP_TLB 2271 bool 2272 default y if !(CPU_R3000 || CPU_TX39XX) 2273 2274config MIPS_FP_SUPPORT 2275 bool "Floating Point support" if EXPERT 2276 default y 2277 help 2278 Select y to include support for floating point in the kernel 2279 including initialization of FPU hardware, FP context save & restore 2280 and emulation of an FPU where necessary. Without this support any 2281 userland program attempting to use floating point instructions will 2282 receive a SIGILL. 2283 2284 If you know that your userland will not attempt to use floating point 2285 instructions then you can say n here to shrink the kernel a little. 2286 2287 If unsure, say y. 2288 2289config CPU_R2300_FPU 2290 bool 2291 depends on MIPS_FP_SUPPORT 2292 default y if CPU_R3000 || CPU_TX39XX 2293 2294config CPU_R3K_TLB 2295 bool 2296 2297config CPU_R4K_FPU 2298 bool 2299 depends on MIPS_FP_SUPPORT 2300 default y if !CPU_R2300_FPU 2301 2302config CPU_R4K_CACHE_TLB 2303 bool 2304 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2305 2306config MIPS_MT_SMP 2307 bool "MIPS MT SMP support (1 TC on each available VPE)" 2308 default y 2309 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2310 select CPU_MIPSR2_IRQ_VI 2311 select CPU_MIPSR2_IRQ_EI 2312 select SYNC_R4K 2313 select MIPS_MT 2314 select SMP 2315 select SMP_UP 2316 select SYS_SUPPORTS_SMP 2317 select SYS_SUPPORTS_SCHED_SMT 2318 select MIPS_PERF_SHARED_TC_COUNTERS 2319 help 2320 This is a kernel model which is known as SMVP. This is supported 2321 on cores with the MT ASE and uses the available VPEs to implement 2322 virtual processors which supports SMP. This is equivalent to the 2323 Intel Hyperthreading feature. For further information go to 2324 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2325 2326config MIPS_MT 2327 bool 2328 2329config SCHED_SMT 2330 bool "SMT (multithreading) scheduler support" 2331 depends on SYS_SUPPORTS_SCHED_SMT 2332 default n 2333 help 2334 SMT scheduler support improves the CPU scheduler's decision making 2335 when dealing with MIPS MT enabled cores at a cost of slightly 2336 increased overhead in some places. If unsure say N here. 2337 2338config SYS_SUPPORTS_SCHED_SMT 2339 bool 2340 2341config SYS_SUPPORTS_MULTITHREADING 2342 bool 2343 2344config MIPS_MT_FPAFF 2345 bool "Dynamic FPU affinity for FP-intensive threads" 2346 default y 2347 depends on MIPS_MT_SMP 2348 2349config MIPSR2_TO_R6_EMULATOR 2350 bool "MIPS R2-to-R6 emulator" 2351 depends on CPU_MIPSR6 2352 depends on MIPS_FP_SUPPORT 2353 default y 2354 help 2355 Choose this option if you want to run non-R6 MIPS userland code. 2356 Even if you say 'Y' here, the emulator will still be disabled by 2357 default. You can enable it using the 'mipsr2emu' kernel option. 2358 The only reason this is a build-time option is to save ~14K from the 2359 final kernel image. 2360 2361config SYS_SUPPORTS_VPE_LOADER 2362 bool 2363 depends on SYS_SUPPORTS_MULTITHREADING 2364 help 2365 Indicates that the platform supports the VPE loader, and provides 2366 physical_memsize. 2367 2368config MIPS_VPE_LOADER 2369 bool "VPE loader support." 2370 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2371 select CPU_MIPSR2_IRQ_VI 2372 select CPU_MIPSR2_IRQ_EI 2373 select MIPS_MT 2374 help 2375 Includes a loader for loading an elf relocatable object 2376 onto another VPE and running it. 2377 2378config MIPS_VPE_LOADER_CMP 2379 bool 2380 default "y" 2381 depends on MIPS_VPE_LOADER && MIPS_CMP 2382 2383config MIPS_VPE_LOADER_MT 2384 bool 2385 default "y" 2386 depends on MIPS_VPE_LOADER && !MIPS_CMP 2387 2388config MIPS_VPE_LOADER_TOM 2389 bool "Load VPE program into memory hidden from linux" 2390 depends on MIPS_VPE_LOADER 2391 default y 2392 help 2393 The loader can use memory that is present but has been hidden from 2394 Linux using the kernel command line option "mem=xxMB". It's up to 2395 you to ensure the amount you put in the option and the space your 2396 program requires is less or equal to the amount physically present. 2397 2398config MIPS_VPE_APSP_API 2399 bool "Enable support for AP/SP API (RTLX)" 2400 depends on MIPS_VPE_LOADER 2401 2402config MIPS_VPE_APSP_API_CMP 2403 bool 2404 default "y" 2405 depends on MIPS_VPE_APSP_API && MIPS_CMP 2406 2407config MIPS_VPE_APSP_API_MT 2408 bool 2409 default "y" 2410 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2411 2412config MIPS_CMP 2413 bool "MIPS CMP framework support (DEPRECATED)" 2414 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2415 select SMP 2416 select SYNC_R4K 2417 select SYS_SUPPORTS_SMP 2418 select WEAK_ORDERING 2419 default n 2420 help 2421 Select this if you are using a bootloader which implements the "CMP 2422 framework" protocol (ie. YAMON) and want your kernel to make use of 2423 its ability to start secondary CPUs. 2424 2425 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2426 instead of this. 2427 2428config MIPS_CPS 2429 bool "MIPS Coherent Processing System support" 2430 depends on SYS_SUPPORTS_MIPS_CPS 2431 select MIPS_CM 2432 select MIPS_CPS_PM if HOTPLUG_CPU 2433 select SMP 2434 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2435 select SYS_SUPPORTS_HOTPLUG_CPU 2436 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2437 select SYS_SUPPORTS_SMP 2438 select WEAK_ORDERING 2439 help 2440 Select this if you wish to run an SMP kernel across multiple cores 2441 within a MIPS Coherent Processing System. When this option is 2442 enabled the kernel will probe for other cores and boot them with 2443 no external assistance. It is safe to enable this when hardware 2444 support is unavailable. 2445 2446config MIPS_CPS_PM 2447 depends on MIPS_CPS 2448 bool 2449 2450config MIPS_CM 2451 bool 2452 select MIPS_CPC 2453 2454config MIPS_CPC 2455 bool 2456 2457config SB1_PASS_2_WORKAROUNDS 2458 bool 2459 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2460 default y 2461 2462config SB1_PASS_2_1_WORKAROUNDS 2463 bool 2464 depends on CPU_SB1 && CPU_SB1_PASS_2 2465 default y 2466 2467choice 2468 prompt "SmartMIPS or microMIPS ASE support" 2469 2470config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2471 bool "None" 2472 help 2473 Select this if you want neither microMIPS nor SmartMIPS support 2474 2475config CPU_HAS_SMARTMIPS 2476 depends on SYS_SUPPORTS_SMARTMIPS 2477 bool "SmartMIPS" 2478 help 2479 SmartMIPS is a extension of the MIPS32 architecture aimed at 2480 increased security at both hardware and software level for 2481 smartcards. Enabling this option will allow proper use of the 2482 SmartMIPS instructions by Linux applications. However a kernel with 2483 this option will not work on a MIPS core without SmartMIPS core. If 2484 you don't know you probably don't have SmartMIPS and should say N 2485 here. 2486 2487config CPU_MICROMIPS 2488 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2489 bool "microMIPS" 2490 help 2491 When this option is enabled the kernel will be built using the 2492 microMIPS ISA 2493 2494endchoice 2495 2496config CPU_HAS_MSA 2497 bool "Support for the MIPS SIMD Architecture" 2498 depends on CPU_SUPPORTS_MSA 2499 depends on MIPS_FP_SUPPORT 2500 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2501 help 2502 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2503 and a set of SIMD instructions to operate on them. When this option 2504 is enabled the kernel will support allocating & switching MSA 2505 vector register contexts. If you know that your kernel will only be 2506 running on CPUs which do not support MSA or that your userland will 2507 not be making use of it then you may wish to say N here to reduce 2508 the size & complexity of your kernel. 2509 2510 If unsure, say Y. 2511 2512config CPU_HAS_WB 2513 bool 2514 2515config XKS01 2516 bool 2517 2518config CPU_HAS_RIXI 2519 bool 2520 2521config CPU_HAS_LOAD_STORE_LR 2522 bool 2523 help 2524 CPU has support for unaligned load and store instructions: 2525 LWL, LWR, SWL, SWR (Load/store word left/right). 2526 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2527 2528# 2529# Vectored interrupt mode is an R2 feature 2530# 2531config CPU_MIPSR2_IRQ_VI 2532 bool 2533 2534# 2535# Extended interrupt mode is an R2 feature 2536# 2537config CPU_MIPSR2_IRQ_EI 2538 bool 2539 2540config CPU_HAS_SYNC 2541 bool 2542 depends on !CPU_R3000 2543 default y 2544 2545# 2546# CPU non-features 2547# 2548config CPU_DADDI_WORKAROUNDS 2549 bool 2550 2551config CPU_R4000_WORKAROUNDS 2552 bool 2553 select CPU_R4400_WORKAROUNDS 2554 2555config CPU_R4400_WORKAROUNDS 2556 bool 2557 2558config CPU_R4X00_BUGS64 2559 bool 2560 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2561 2562config MIPS_ASID_SHIFT 2563 int 2564 default 6 if CPU_R3000 || CPU_TX39XX 2565 default 0 2566 2567config MIPS_ASID_BITS 2568 int 2569 default 0 if MIPS_ASID_BITS_VARIABLE 2570 default 6 if CPU_R3000 || CPU_TX39XX 2571 default 8 2572 2573config MIPS_ASID_BITS_VARIABLE 2574 bool 2575 2576config MIPS_CRC_SUPPORT 2577 bool 2578 2579# 2580# - Highmem only makes sense for the 32-bit kernel. 2581# - The current highmem code will only work properly on physically indexed 2582# caches such as R3000, SB1, R7000 or those that look like they're virtually 2583# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2584# moment we protect the user and offer the highmem option only on machines 2585# where it's known to be safe. This will not offer highmem on a few systems 2586# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2587# indexed CPUs but we're playing safe. 2588# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2589# know they might have memory configurations that could make use of highmem 2590# support. 2591# 2592config HIGHMEM 2593 bool "High Memory Support" 2594 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2595 2596config CPU_SUPPORTS_HIGHMEM 2597 bool 2598 2599config SYS_SUPPORTS_HIGHMEM 2600 bool 2601 2602config SYS_SUPPORTS_SMARTMIPS 2603 bool 2604 2605config SYS_SUPPORTS_MICROMIPS 2606 bool 2607 2608config SYS_SUPPORTS_MIPS16 2609 bool 2610 help 2611 This option must be set if a kernel might be executed on a MIPS16- 2612 enabled CPU even if MIPS16 is not actually being used. In other 2613 words, it makes the kernel MIPS16-tolerant. 2614 2615config CPU_SUPPORTS_MSA 2616 bool 2617 2618config ARCH_FLATMEM_ENABLE 2619 def_bool y 2620 depends on !NUMA && !CPU_LOONGSON2EF 2621 2622config ARCH_SPARSEMEM_ENABLE 2623 bool 2624 select SPARSEMEM_STATIC if !SGI_IP27 2625 2626config NUMA 2627 bool "NUMA Support" 2628 depends on SYS_SUPPORTS_NUMA 2629 help 2630 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2631 Access). This option improves performance on systems with more 2632 than two nodes; on two node systems it is generally better to 2633 leave it disabled; on single node systems disable this option 2634 disabled. 2635 2636config SYS_SUPPORTS_NUMA 2637 bool 2638 2639config RELOCATABLE 2640 bool "Relocatable kernel" 2641 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2642 help 2643 This builds a kernel image that retains relocation information 2644 so it can be loaded someplace besides the default 1MB. 2645 The relocations make the kernel binary about 15% larger, 2646 but are discarded at runtime 2647 2648config RELOCATION_TABLE_SIZE 2649 hex "Relocation table size" 2650 depends on RELOCATABLE 2651 range 0x0 0x01000000 2652 default "0x00100000" 2653 ---help--- 2654 A table of relocation data will be appended to the kernel binary 2655 and parsed at boot to fix up the relocated kernel. 2656 2657 This option allows the amount of space reserved for the table to be 2658 adjusted, although the default of 1Mb should be ok in most cases. 2659 2660 The build will fail and a valid size suggested if this is too small. 2661 2662 If unsure, leave at the default value. 2663 2664config RANDOMIZE_BASE 2665 bool "Randomize the address of the kernel image" 2666 depends on RELOCATABLE 2667 ---help--- 2668 Randomizes the physical and virtual address at which the 2669 kernel image is loaded, as a security feature that 2670 deters exploit attempts relying on knowledge of the location 2671 of kernel internals. 2672 2673 Entropy is generated using any coprocessor 0 registers available. 2674 2675 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2676 2677 If unsure, say N. 2678 2679config RANDOMIZE_BASE_MAX_OFFSET 2680 hex "Maximum kASLR offset" if EXPERT 2681 depends on RANDOMIZE_BASE 2682 range 0x0 0x40000000 if EVA || 64BIT 2683 range 0x0 0x08000000 2684 default "0x01000000" 2685 ---help--- 2686 When kASLR is active, this provides the maximum offset that will 2687 be applied to the kernel image. It should be set according to the 2688 amount of physical RAM available in the target system minus 2689 PHYSICAL_START and must be a power of 2. 2690 2691 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2692 EVA or 64-bit. The default is 16Mb. 2693 2694config NODES_SHIFT 2695 int 2696 default "6" 2697 depends on NEED_MULTIPLE_NODES 2698 2699config HW_PERF_EVENTS 2700 bool "Enable hardware performance counter support for perf events" 2701 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2702 default y 2703 help 2704 Enable hardware performance counter support for perf events. If 2705 disabled, perf events will use software events only. 2706 2707config SMP 2708 bool "Multi-Processing support" 2709 depends on SYS_SUPPORTS_SMP 2710 help 2711 This enables support for systems with more than one CPU. If you have 2712 a system with only one CPU, say N. If you have a system with more 2713 than one CPU, say Y. 2714 2715 If you say N here, the kernel will run on uni- and multiprocessor 2716 machines, but will use only one CPU of a multiprocessor machine. If 2717 you say Y here, the kernel will run on many, but not all, 2718 uniprocessor machines. On a uniprocessor machine, the kernel 2719 will run faster if you say N here. 2720 2721 People using multiprocessor machines who say Y here should also say 2722 Y to "Enhanced Real Time Clock Support", below. 2723 2724 See also the SMP-HOWTO available at 2725 <http://www.tldp.org/docs.html#howto>. 2726 2727 If you don't know what to do here, say N. 2728 2729config HOTPLUG_CPU 2730 bool "Support for hot-pluggable CPUs" 2731 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2732 help 2733 Say Y here to allow turning CPUs off and on. CPUs can be 2734 controlled through /sys/devices/system/cpu. 2735 (Note: power management support will enable this option 2736 automatically on SMP systems. ) 2737 Say N if you want to disable CPU hotplug. 2738 2739config SMP_UP 2740 bool 2741 2742config SYS_SUPPORTS_MIPS_CMP 2743 bool 2744 2745config SYS_SUPPORTS_MIPS_CPS 2746 bool 2747 2748config SYS_SUPPORTS_SMP 2749 bool 2750 2751config NR_CPUS_DEFAULT_4 2752 bool 2753 2754config NR_CPUS_DEFAULT_8 2755 bool 2756 2757config NR_CPUS_DEFAULT_16 2758 bool 2759 2760config NR_CPUS_DEFAULT_32 2761 bool 2762 2763config NR_CPUS_DEFAULT_64 2764 bool 2765 2766config NR_CPUS 2767 int "Maximum number of CPUs (2-256)" 2768 range 2 256 2769 depends on SMP 2770 default "4" if NR_CPUS_DEFAULT_4 2771 default "8" if NR_CPUS_DEFAULT_8 2772 default "16" if NR_CPUS_DEFAULT_16 2773 default "32" if NR_CPUS_DEFAULT_32 2774 default "64" if NR_CPUS_DEFAULT_64 2775 help 2776 This allows you to specify the maximum number of CPUs which this 2777 kernel will support. The maximum supported value is 32 for 32-bit 2778 kernel and 64 for 64-bit kernels; the minimum value which makes 2779 sense is 1 for Qemu (useful only for kernel debugging purposes) 2780 and 2 for all others. 2781 2782 This is purely to save memory - each supported CPU adds 2783 approximately eight kilobytes to the kernel image. For best 2784 performance should round up your number of processors to the next 2785 power of two. 2786 2787config MIPS_PERF_SHARED_TC_COUNTERS 2788 bool 2789 2790config MIPS_NR_CPU_NR_MAP_1024 2791 bool 2792 2793config MIPS_NR_CPU_NR_MAP 2794 int 2795 depends on SMP 2796 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2797 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2798 2799# 2800# Timer Interrupt Frequency Configuration 2801# 2802 2803choice 2804 prompt "Timer frequency" 2805 default HZ_250 2806 help 2807 Allows the configuration of the timer frequency. 2808 2809 config HZ_24 2810 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2811 2812 config HZ_48 2813 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2814 2815 config HZ_100 2816 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2817 2818 config HZ_128 2819 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2820 2821 config HZ_250 2822 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2823 2824 config HZ_256 2825 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2826 2827 config HZ_1000 2828 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2829 2830 config HZ_1024 2831 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2832 2833endchoice 2834 2835config SYS_SUPPORTS_24HZ 2836 bool 2837 2838config SYS_SUPPORTS_48HZ 2839 bool 2840 2841config SYS_SUPPORTS_100HZ 2842 bool 2843 2844config SYS_SUPPORTS_128HZ 2845 bool 2846 2847config SYS_SUPPORTS_250HZ 2848 bool 2849 2850config SYS_SUPPORTS_256HZ 2851 bool 2852 2853config SYS_SUPPORTS_1000HZ 2854 bool 2855 2856config SYS_SUPPORTS_1024HZ 2857 bool 2858 2859config SYS_SUPPORTS_ARBIT_HZ 2860 bool 2861 default y if !SYS_SUPPORTS_24HZ && \ 2862 !SYS_SUPPORTS_48HZ && \ 2863 !SYS_SUPPORTS_100HZ && \ 2864 !SYS_SUPPORTS_128HZ && \ 2865 !SYS_SUPPORTS_250HZ && \ 2866 !SYS_SUPPORTS_256HZ && \ 2867 !SYS_SUPPORTS_1000HZ && \ 2868 !SYS_SUPPORTS_1024HZ 2869 2870config HZ 2871 int 2872 default 24 if HZ_24 2873 default 48 if HZ_48 2874 default 100 if HZ_100 2875 default 128 if HZ_128 2876 default 250 if HZ_250 2877 default 256 if HZ_256 2878 default 1000 if HZ_1000 2879 default 1024 if HZ_1024 2880 2881config SCHED_HRTICK 2882 def_bool HIGH_RES_TIMERS 2883 2884config KEXEC 2885 bool "Kexec system call" 2886 select KEXEC_CORE 2887 help 2888 kexec is a system call that implements the ability to shutdown your 2889 current kernel, and to start another kernel. It is like a reboot 2890 but it is independent of the system firmware. And like a reboot 2891 you can start any kernel with it, not just Linux. 2892 2893 The name comes from the similarity to the exec system call. 2894 2895 It is an ongoing process to be certain the hardware in a machine 2896 is properly shutdown, so do not be surprised if this code does not 2897 initially work for you. As of this writing the exact hardware 2898 interface is strongly in flux, so no good recommendation can be 2899 made. 2900 2901config CRASH_DUMP 2902 bool "Kernel crash dumps" 2903 help 2904 Generate crash dump after being started by kexec. 2905 This should be normally only set in special crash dump kernels 2906 which are loaded in the main kernel with kexec-tools into 2907 a specially reserved region and then later executed after 2908 a crash by kdump/kexec. The crash dump kernel must be compiled 2909 to a memory address not used by the main kernel or firmware using 2910 PHYSICAL_START. 2911 2912config PHYSICAL_START 2913 hex "Physical address where the kernel is loaded" 2914 default "0xffffffff84000000" 2915 depends on CRASH_DUMP 2916 help 2917 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2918 If you plan to use kernel for capturing the crash dump change 2919 this value to start of the reserved region (the "X" value as 2920 specified in the "crashkernel=YM@XM" command line boot parameter 2921 passed to the panic-ed kernel). 2922 2923config SECCOMP 2924 bool "Enable seccomp to safely compute untrusted bytecode" 2925 depends on PROC_FS 2926 default y 2927 help 2928 This kernel feature is useful for number crunching applications 2929 that may need to compute untrusted bytecode during their 2930 execution. By using pipes or other transports made available to 2931 the process as file descriptors supporting the read/write 2932 syscalls, it's possible to isolate those applications in 2933 their own address space using seccomp. Once seccomp is 2934 enabled via /proc/<pid>/seccomp, it cannot be disabled 2935 and the task is only allowed to execute a few safe syscalls 2936 defined by each seccomp mode. 2937 2938 If unsure, say Y. Only embedded should say N here. 2939 2940config MIPS_O32_FP64_SUPPORT 2941 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2942 depends on 32BIT || MIPS32_O32 2943 help 2944 When this is enabled, the kernel will support use of 64-bit floating 2945 point registers with binaries using the O32 ABI along with the 2946 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2947 32-bit MIPS systems this support is at the cost of increasing the 2948 size and complexity of the compiled FPU emulator. Thus if you are 2949 running a MIPS32 system and know that none of your userland binaries 2950 will require 64-bit floating point, you may wish to reduce the size 2951 of your kernel & potentially improve FP emulation performance by 2952 saying N here. 2953 2954 Although binutils currently supports use of this flag the details 2955 concerning its effect upon the O32 ABI in userland are still being 2956 worked on. In order to avoid userland becoming dependant upon current 2957 behaviour before the details have been finalised, this option should 2958 be considered experimental and only enabled by those working upon 2959 said details. 2960 2961 If unsure, say N. 2962 2963config USE_OF 2964 bool 2965 select OF 2966 select OF_EARLY_FLATTREE 2967 select IRQ_DOMAIN 2968 2969config UHI_BOOT 2970 bool 2971 2972config BUILTIN_DTB 2973 bool 2974 2975choice 2976 prompt "Kernel appended dtb support" if USE_OF 2977 default MIPS_NO_APPENDED_DTB 2978 2979 config MIPS_NO_APPENDED_DTB 2980 bool "None" 2981 help 2982 Do not enable appended dtb support. 2983 2984 config MIPS_ELF_APPENDED_DTB 2985 bool "vmlinux" 2986 help 2987 With this option, the boot code will look for a device tree binary 2988 DTB) included in the vmlinux ELF section .appended_dtb. By default 2989 it is empty and the DTB can be appended using binutils command 2990 objcopy: 2991 2992 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2993 2994 This is meant as a backward compatiblity convenience for those 2995 systems with a bootloader that can't be upgraded to accommodate 2996 the documented boot protocol using a device tree. 2997 2998 config MIPS_RAW_APPENDED_DTB 2999 bool "vmlinux.bin or vmlinuz.bin" 3000 help 3001 With this option, the boot code will look for a device tree binary 3002 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3003 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3004 3005 This is meant as a backward compatibility convenience for those 3006 systems with a bootloader that can't be upgraded to accommodate 3007 the documented boot protocol using a device tree. 3008 3009 Beware that there is very little in terms of protection against 3010 this option being confused by leftover garbage in memory that might 3011 look like a DTB header after a reboot if no actual DTB is appended 3012 to vmlinux.bin. Do not leave this option active in a production kernel 3013 if you don't intend to always append a DTB. 3014endchoice 3015 3016choice 3017 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3018 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3019 !MIPS_MALTA && \ 3020 !CAVIUM_OCTEON_SOC 3021 default MIPS_CMDLINE_FROM_BOOTLOADER 3022 3023 config MIPS_CMDLINE_FROM_DTB 3024 depends on USE_OF 3025 bool "Dtb kernel arguments if available" 3026 3027 config MIPS_CMDLINE_DTB_EXTEND 3028 depends on USE_OF 3029 bool "Extend dtb kernel arguments with bootloader arguments" 3030 3031 config MIPS_CMDLINE_FROM_BOOTLOADER 3032 bool "Bootloader kernel arguments if available" 3033 3034 config MIPS_CMDLINE_BUILTIN_EXTEND 3035 depends on CMDLINE_BOOL 3036 bool "Extend builtin kernel arguments with bootloader arguments" 3037endchoice 3038 3039endmenu 3040 3041config LOCKDEP_SUPPORT 3042 bool 3043 default y 3044 3045config STACKTRACE_SUPPORT 3046 bool 3047 default y 3048 3049config PGTABLE_LEVELS 3050 int 3051 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3052 default 3 if 64BIT && !PAGE_SIZE_64KB 3053 default 2 3054 3055config MIPS_AUTO_PFN_OFFSET 3056 bool 3057 3058menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3059 3060config PCI_DRIVERS_GENERIC 3061 select PCI_DOMAINS_GENERIC if PCI 3062 bool 3063 3064config PCI_DRIVERS_LEGACY 3065 def_bool !PCI_DRIVERS_GENERIC 3066 select NO_GENERIC_PCI_IOPORT_MAP 3067 select PCI_DOMAINS if PCI 3068 3069# 3070# ISA support is now enabled via select. Too many systems still have the one 3071# or other ISA chip on the board that users don't know about so don't expect 3072# users to choose the right thing ... 3073# 3074config ISA 3075 bool 3076 3077config TC 3078 bool "TURBOchannel support" 3079 depends on MACH_DECSTATION 3080 help 3081 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3082 processors. TURBOchannel programming specifications are available 3083 at: 3084 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3085 and: 3086 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3087 Linux driver support status is documented at: 3088 <http://www.linux-mips.org/wiki/DECstation> 3089 3090config MMU 3091 bool 3092 default y 3093 3094config ARCH_MMAP_RND_BITS_MIN 3095 default 12 if 64BIT 3096 default 8 3097 3098config ARCH_MMAP_RND_BITS_MAX 3099 default 18 if 64BIT 3100 default 15 3101 3102config ARCH_MMAP_RND_COMPAT_BITS_MIN 3103 default 8 3104 3105config ARCH_MMAP_RND_COMPAT_BITS_MAX 3106 default 15 3107 3108config I8253 3109 bool 3110 select CLKSRC_I8253 3111 select CLKEVT_I8253 3112 select MIPS_EXTERNAL_TIMER 3113 3114config ZONE_DMA 3115 bool 3116 3117config ZONE_DMA32 3118 bool 3119 3120endmenu 3121 3122config TRAD_SIGNALS 3123 bool 3124 3125config MIPS32_COMPAT 3126 bool 3127 3128config COMPAT 3129 bool 3130 3131config SYSVIPC_COMPAT 3132 bool 3133 3134config MIPS32_O32 3135 bool "Kernel support for o32 binaries" 3136 depends on 64BIT 3137 select ARCH_WANT_OLD_COMPAT_IPC 3138 select COMPAT 3139 select MIPS32_COMPAT 3140 select SYSVIPC_COMPAT if SYSVIPC 3141 help 3142 Select this option if you want to run o32 binaries. These are pure 3143 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3144 existing binaries are in this format. 3145 3146 If unsure, say Y. 3147 3148config MIPS32_N32 3149 bool "Kernel support for n32 binaries" 3150 depends on 64BIT 3151 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3152 select COMPAT 3153 select MIPS32_COMPAT 3154 select SYSVIPC_COMPAT if SYSVIPC 3155 help 3156 Select this option if you want to run n32 binaries. These are 3157 64-bit binaries using 32-bit quantities for addressing and certain 3158 data that would normally be 64-bit. They are used in special 3159 cases. 3160 3161 If unsure, say N. 3162 3163config BINFMT_ELF32 3164 bool 3165 default y if MIPS32_O32 || MIPS32_N32 3166 select ELFCORE 3167 3168menu "Power management options" 3169 3170config ARCH_HIBERNATION_POSSIBLE 3171 def_bool y 3172 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3173 3174config ARCH_SUSPEND_POSSIBLE 3175 def_bool y 3176 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3177 3178source "kernel/power/Kconfig" 3179 3180endmenu 3181 3182config MIPS_EXTERNAL_TIMER 3183 bool 3184 3185menu "CPU Power Management" 3186 3187if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3188source "drivers/cpufreq/Kconfig" 3189endif 3190 3191source "drivers/cpuidle/Kconfig" 3192 3193endmenu 3194 3195source "drivers/firmware/Kconfig" 3196 3197source "arch/mips/kvm/Kconfig" 3198