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_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_HAS_UBSAN_SANITIZE_ALL 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_IPC_PARSE_VERSION 17 select BUILDTIME_EXTABLE_SORT 18 select CLONE_BACKWARDS 19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 20 select CPU_PM if CPU_IDLE 21 select GENERIC_ATOMIC64 if !64BIT 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_CMOS_UPDATE 24 select GENERIC_CPU_AUTOPROBE 25 select GENERIC_GETTIMEOFDAY 26 select GENERIC_IOMAP 27 select GENERIC_IRQ_PROBE 28 select GENERIC_IRQ_SHOW 29 select GENERIC_ISA_DMA if EISA 30 select GENERIC_LIB_ASHLDI3 31 select GENERIC_LIB_ASHRDI3 32 select GENERIC_LIB_CMPDI2 33 select GENERIC_LIB_LSHRDI3 34 select GENERIC_LIB_UCMPDI2 35 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 36 select GENERIC_SMP_IDLE_THREAD 37 select GENERIC_TIME_VSYSCALL 38 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 39 select HANDLE_DOMAIN_IRQ 40 select HAVE_ARCH_COMPILER_H 41 select HAVE_ARCH_JUMP_LABEL 42 select HAVE_ARCH_KGDB 43 select HAVE_ARCH_MMAP_RND_BITS if MMU 44 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 45 select HAVE_ARCH_SECCOMP_FILTER 46 select HAVE_ARCH_TRACEHOOK 47 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 48 select HAVE_ASM_MODVERSIONS 49 select HAVE_EBPF_JIT if (!CPU_MICROMIPS) 50 select HAVE_CONTEXT_TRACKING 51 select HAVE_COPY_THREAD_TLS 52 select HAVE_C_RECORDMCOUNT 53 select HAVE_DEBUG_KMEMLEAK 54 select HAVE_DEBUG_STACKOVERFLOW 55 select HAVE_DMA_CONTIGUOUS 56 select HAVE_DYNAMIC_FTRACE 57 select HAVE_EXIT_THREAD 58 select HAVE_FAST_GUP 59 select HAVE_FTRACE_MCOUNT_RECORD 60 select HAVE_FUNCTION_GRAPH_TRACER 61 select HAVE_FUNCTION_TRACER 62 select HAVE_IDE 63 select HAVE_IOREMAP_PROT 64 select HAVE_IRQ_EXIT_ON_IRQ_STACK 65 select HAVE_IRQ_TIME_ACCOUNTING 66 select HAVE_KPROBES 67 select HAVE_KRETPROBES 68 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 69 select HAVE_MEMBLOCK_NODE_MAP 70 select HAVE_MOD_ARCH_SPECIFIC 71 select HAVE_NMI 72 select HAVE_OPROFILE 73 select HAVE_PERF_EVENTS 74 select HAVE_REGS_AND_STACK_ACCESS_API 75 select HAVE_RSEQ 76 select HAVE_STACKPROTECTOR 77 select HAVE_SYSCALL_TRACEPOINTS 78 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 79 select HAVE_GENERIC_VDSO 80 select IRQ_FORCED_THREADING 81 select ISA if EISA 82 select MODULES_USE_ELF_RELA if MODULES && 64BIT 83 select MODULES_USE_ELF_REL if MODULES 84 select PERF_USE_VMALLOC 85 select RTC_LIB 86 select SYSCTL_EXCEPTION_TRACE 87 select VIRT_TO_BUS 88 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 89 90menu "Machine selection" 91 92choice 93 prompt "System type" 94 default MIPS_GENERIC 95 96config MIPS_GENERIC 97 bool "Generic board-agnostic MIPS kernel" 98 select BOOT_RAW 99 select BUILTIN_DTB 100 select CEVT_R4K 101 select CLKSRC_MIPS_GIC 102 select COMMON_CLK 103 select CPU_MIPSR2_IRQ_VI 104 select CPU_MIPSR2_IRQ_EI 105 select CSRC_R4K 106 select DMA_PERDEV_COHERENT 107 select HAVE_PCI 108 select IRQ_MIPS_CPU 109 select LIBFDT 110 select MIPS_AUTO_PFN_OFFSET 111 select MIPS_CPU_SCACHE 112 select MIPS_GIC 113 select MIPS_L1_CACHE_SHIFT_7 114 select NO_EXCEPT_FILL 115 select PCI_DRIVERS_GENERIC 116 select PINCTRL 117 select SMP_UP if SMP 118 select SWAP_IO_SPACE 119 select SYS_HAS_CPU_MIPS32_R1 120 select SYS_HAS_CPU_MIPS32_R2 121 select SYS_HAS_CPU_MIPS32_R6 122 select SYS_HAS_CPU_MIPS64_R1 123 select SYS_HAS_CPU_MIPS64_R2 124 select SYS_HAS_CPU_MIPS64_R6 125 select SYS_SUPPORTS_32BIT_KERNEL 126 select SYS_SUPPORTS_64BIT_KERNEL 127 select SYS_SUPPORTS_BIG_ENDIAN 128 select SYS_SUPPORTS_HIGHMEM 129 select SYS_SUPPORTS_LITTLE_ENDIAN 130 select SYS_SUPPORTS_MICROMIPS 131 select SYS_SUPPORTS_MIPS_CPS 132 select SYS_SUPPORTS_MIPS16 133 select SYS_SUPPORTS_MULTITHREADING 134 select SYS_SUPPORTS_RELOCATABLE 135 select SYS_SUPPORTS_SMARTMIPS 136 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 137 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 138 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 139 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 140 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 141 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 142 select USE_OF 143 select UHI_BOOT 144 help 145 Select this to build a kernel which aims to support multiple boards, 146 generally using a flattened device tree passed from the bootloader 147 using the boot protocol defined in the UHI (Unified Hosting 148 Interface) specification. 149 150config MIPS_ALCHEMY 151 bool "Alchemy processor based machines" 152 select PHYS_ADDR_T_64BIT 153 select CEVT_R4K 154 select CSRC_R4K 155 select IRQ_MIPS_CPU 156 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 157 select SYS_HAS_CPU_MIPS32_R1 158 select SYS_SUPPORTS_32BIT_KERNEL 159 select SYS_SUPPORTS_APM_EMULATION 160 select GPIOLIB 161 select SYS_SUPPORTS_ZBOOT 162 select COMMON_CLK 163 164config AR7 165 bool "Texas Instruments AR7" 166 select BOOT_ELF32 167 select DMA_NONCOHERENT 168 select CEVT_R4K 169 select CSRC_R4K 170 select IRQ_MIPS_CPU 171 select NO_EXCEPT_FILL 172 select SWAP_IO_SPACE 173 select SYS_HAS_CPU_MIPS32_R1 174 select SYS_HAS_EARLY_PRINTK 175 select SYS_SUPPORTS_32BIT_KERNEL 176 select SYS_SUPPORTS_LITTLE_ENDIAN 177 select SYS_SUPPORTS_MIPS16 178 select SYS_SUPPORTS_ZBOOT_UART16550 179 select GPIOLIB 180 select VLYNQ 181 select HAVE_CLK 182 help 183 Support for the Texas Instruments AR7 System-on-a-Chip 184 family: TNETD7100, 7200 and 7300. 185 186config ATH25 187 bool "Atheros AR231x/AR531x SoC support" 188 select CEVT_R4K 189 select CSRC_R4K 190 select DMA_NONCOHERENT 191 select IRQ_MIPS_CPU 192 select IRQ_DOMAIN 193 select SYS_HAS_CPU_MIPS32_R1 194 select SYS_SUPPORTS_BIG_ENDIAN 195 select SYS_SUPPORTS_32BIT_KERNEL 196 select SYS_HAS_EARLY_PRINTK 197 help 198 Support for Atheros AR231x and Atheros AR531x based boards 199 200config ATH79 201 bool "Atheros AR71XX/AR724X/AR913X based boards" 202 select ARCH_HAS_RESET_CONTROLLER 203 select BOOT_RAW 204 select CEVT_R4K 205 select CSRC_R4K 206 select DMA_NONCOHERENT 207 select GPIOLIB 208 select PINCTRL 209 select HAVE_CLK 210 select COMMON_CLK 211 select CLKDEV_LOOKUP 212 select IRQ_MIPS_CPU 213 select SYS_HAS_CPU_MIPS32_R2 214 select SYS_HAS_EARLY_PRINTK 215 select SYS_SUPPORTS_32BIT_KERNEL 216 select SYS_SUPPORTS_BIG_ENDIAN 217 select SYS_SUPPORTS_MIPS16 218 select SYS_SUPPORTS_ZBOOT_UART_PROM 219 select USE_OF 220 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 221 help 222 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 223 224config BMIPS_GENERIC 225 bool "Broadcom Generic BMIPS kernel" 226 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 227 select ARCH_HAS_PHYS_TO_DMA 228 select BOOT_RAW 229 select NO_EXCEPT_FILL 230 select USE_OF 231 select CEVT_R4K 232 select CSRC_R4K 233 select SYNC_R4K 234 select COMMON_CLK 235 select BCM6345_L1_IRQ 236 select BCM7038_L1_IRQ 237 select BCM7120_L2_IRQ 238 select BRCMSTB_L2_IRQ 239 select IRQ_MIPS_CPU 240 select DMA_NONCOHERENT 241 select SYS_SUPPORTS_32BIT_KERNEL 242 select SYS_SUPPORTS_LITTLE_ENDIAN 243 select SYS_SUPPORTS_BIG_ENDIAN 244 select SYS_SUPPORTS_HIGHMEM 245 select SYS_HAS_CPU_BMIPS32_3300 246 select SYS_HAS_CPU_BMIPS4350 247 select SYS_HAS_CPU_BMIPS4380 248 select SYS_HAS_CPU_BMIPS5000 249 select SWAP_IO_SPACE 250 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 251 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 252 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 253 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 254 select HARDIRQS_SW_RESEND 255 help 256 Build a generic DT-based kernel image that boots on select 257 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 258 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 259 must be set appropriately for your board. 260 261config BCM47XX 262 bool "Broadcom BCM47XX based boards" 263 select BOOT_RAW 264 select CEVT_R4K 265 select CSRC_R4K 266 select DMA_NONCOHERENT 267 select HAVE_PCI 268 select IRQ_MIPS_CPU 269 select SYS_HAS_CPU_MIPS32_R1 270 select NO_EXCEPT_FILL 271 select SYS_SUPPORTS_32BIT_KERNEL 272 select SYS_SUPPORTS_LITTLE_ENDIAN 273 select SYS_SUPPORTS_MIPS16 274 select SYS_SUPPORTS_ZBOOT 275 select SYS_HAS_EARLY_PRINTK 276 select USE_GENERIC_EARLY_PRINTK_8250 277 select GPIOLIB 278 select LEDS_GPIO_REGISTER 279 select BCM47XX_NVRAM 280 select BCM47XX_SPROM 281 select BCM47XX_SSB if !BCM47XX_BCMA 282 help 283 Support for BCM47XX based boards 284 285config BCM63XX 286 bool "Broadcom BCM63XX based boards" 287 select BOOT_RAW 288 select CEVT_R4K 289 select CSRC_R4K 290 select SYNC_R4K 291 select DMA_NONCOHERENT 292 select IRQ_MIPS_CPU 293 select SYS_SUPPORTS_32BIT_KERNEL 294 select SYS_SUPPORTS_BIG_ENDIAN 295 select SYS_HAS_EARLY_PRINTK 296 select SWAP_IO_SPACE 297 select GPIOLIB 298 select HAVE_CLK 299 select MIPS_L1_CACHE_SHIFT_4 300 select CLKDEV_LOOKUP 301 help 302 Support for BCM63XX based boards 303 304config MIPS_COBALT 305 bool "Cobalt Server" 306 select CEVT_R4K 307 select CSRC_R4K 308 select CEVT_GT641XX 309 select DMA_NONCOHERENT 310 select FORCE_PCI 311 select I8253 312 select I8259 313 select IRQ_MIPS_CPU 314 select IRQ_GT641XX 315 select PCI_GT64XXX_PCI0 316 select SYS_HAS_CPU_NEVADA 317 select SYS_HAS_EARLY_PRINTK 318 select SYS_SUPPORTS_32BIT_KERNEL 319 select SYS_SUPPORTS_64BIT_KERNEL 320 select SYS_SUPPORTS_LITTLE_ENDIAN 321 select USE_GENERIC_EARLY_PRINTK_8250 322 323config MACH_DECSTATION 324 bool "DECstations" 325 select BOOT_ELF32 326 select CEVT_DS1287 327 select CEVT_R4K if CPU_R4X00 328 select CSRC_IOASIC 329 select CSRC_R4K if CPU_R4X00 330 select CPU_DADDI_WORKAROUNDS if 64BIT 331 select CPU_R4000_WORKAROUNDS if 64BIT 332 select CPU_R4400_WORKAROUNDS if 64BIT 333 select DMA_NONCOHERENT 334 select NO_IOPORT_MAP 335 select IRQ_MIPS_CPU 336 select SYS_HAS_CPU_R3000 337 select SYS_HAS_CPU_R4X00 338 select SYS_SUPPORTS_32BIT_KERNEL 339 select SYS_SUPPORTS_64BIT_KERNEL 340 select SYS_SUPPORTS_LITTLE_ENDIAN 341 select SYS_SUPPORTS_128HZ 342 select SYS_SUPPORTS_256HZ 343 select SYS_SUPPORTS_1024HZ 344 select MIPS_L1_CACHE_SHIFT_4 345 help 346 This enables support for DEC's MIPS based workstations. For details 347 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 348 DECstation porting pages on <http://decstation.unix-ag.org/>. 349 350 If you have one of the following DECstation Models you definitely 351 want to choose R4xx0 for the CPU Type: 352 353 DECstation 5000/50 354 DECstation 5000/150 355 DECstation 5000/260 356 DECsystem 5900/260 357 358 otherwise choose R3000. 359 360config MACH_JAZZ 361 bool "Jazz family of machines" 362 select ARCH_MIGHT_HAVE_PC_PARPORT 363 select ARCH_MIGHT_HAVE_PC_SERIO 364 select FW_ARC 365 select FW_ARC32 366 select ARCH_MAY_HAVE_PC_FDC 367 select CEVT_R4K 368 select CSRC_R4K 369 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 370 select GENERIC_ISA_DMA 371 select HAVE_PCSPKR_PLATFORM 372 select IRQ_MIPS_CPU 373 select I8253 374 select I8259 375 select ISA 376 select SYS_HAS_CPU_R4X00 377 select SYS_SUPPORTS_32BIT_KERNEL 378 select SYS_SUPPORTS_64BIT_KERNEL 379 select SYS_SUPPORTS_100HZ 380 help 381 This a family of machines based on the MIPS R4030 chipset which was 382 used by several vendors to build RISC/os and Windows NT workstations. 383 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 384 Olivetti M700-10 workstations. 385 386config MACH_INGENIC 387 bool "Ingenic SoC based machines" 388 select SYS_SUPPORTS_32BIT_KERNEL 389 select SYS_SUPPORTS_LITTLE_ENDIAN 390 select SYS_SUPPORTS_ZBOOT_UART16550 391 select CPU_SUPPORTS_HUGEPAGES 392 select DMA_NONCOHERENT 393 select IRQ_MIPS_CPU 394 select PINCTRL 395 select GPIOLIB 396 select COMMON_CLK 397 select GENERIC_IRQ_CHIP 398 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 399 select USE_OF 400 select LIBFDT 401 402config LANTIQ 403 bool "Lantiq based platforms" 404 select DMA_NONCOHERENT 405 select IRQ_MIPS_CPU 406 select CEVT_R4K 407 select CSRC_R4K 408 select SYS_HAS_CPU_MIPS32_R1 409 select SYS_HAS_CPU_MIPS32_R2 410 select SYS_SUPPORTS_BIG_ENDIAN 411 select SYS_SUPPORTS_32BIT_KERNEL 412 select SYS_SUPPORTS_MIPS16 413 select SYS_SUPPORTS_MULTITHREADING 414 select SYS_SUPPORTS_VPE_LOADER 415 select SYS_HAS_EARLY_PRINTK 416 select GPIOLIB 417 select SWAP_IO_SPACE 418 select BOOT_RAW 419 select CLKDEV_LOOKUP 420 select USE_OF 421 select PINCTRL 422 select PINCTRL_LANTIQ 423 select ARCH_HAS_RESET_CONTROLLER 424 select RESET_CONTROLLER 425 426config LASAT 427 bool "LASAT Networks platforms" 428 select CEVT_R4K 429 select CRC32 430 select CSRC_R4K 431 select DMA_NONCOHERENT 432 select SYS_HAS_EARLY_PRINTK 433 select HAVE_PCI 434 select IRQ_MIPS_CPU 435 select PCI_GT64XXX_PCI0 436 select MIPS_NILE4 437 select R5000_CPU_SCACHE 438 select SYS_HAS_CPU_R5000 439 select SYS_SUPPORTS_32BIT_KERNEL 440 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 441 select SYS_SUPPORTS_LITTLE_ENDIAN 442 443config MACH_LOONGSON32 444 bool "Loongson-1 family of machines" 445 select SYS_SUPPORTS_ZBOOT 446 help 447 This enables support for the Loongson-1 family of machines. 448 449 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 450 the Institute of Computing Technology (ICT), Chinese Academy of 451 Sciences (CAS). 452 453config MACH_LOONGSON64 454 bool "Loongson-2/3 family of machines" 455 select SYS_SUPPORTS_ZBOOT 456 help 457 This enables the support of Loongson-2/3 family of machines. 458 459 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 460 family of multi-core CPUs. They are both 64-bit general-purpose 461 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 462 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 463 in the People's Republic of China. The chief architect is Professor 464 Weiwu Hu. 465 466config MACH_PISTACHIO 467 bool "IMG Pistachio SoC based boards" 468 select BOOT_ELF32 469 select BOOT_RAW 470 select CEVT_R4K 471 select CLKSRC_MIPS_GIC 472 select COMMON_CLK 473 select CSRC_R4K 474 select DMA_NONCOHERENT 475 select GPIOLIB 476 select IRQ_MIPS_CPU 477 select LIBFDT 478 select MFD_SYSCON 479 select MIPS_CPU_SCACHE 480 select MIPS_GIC 481 select PINCTRL 482 select REGULATOR 483 select SYS_HAS_CPU_MIPS32_R2 484 select SYS_SUPPORTS_32BIT_KERNEL 485 select SYS_SUPPORTS_LITTLE_ENDIAN 486 select SYS_SUPPORTS_MIPS_CPS 487 select SYS_SUPPORTS_MULTITHREADING 488 select SYS_SUPPORTS_RELOCATABLE 489 select SYS_SUPPORTS_ZBOOT 490 select SYS_HAS_EARLY_PRINTK 491 select USE_GENERIC_EARLY_PRINTK_8250 492 select USE_OF 493 help 494 This enables support for the IMG Pistachio SoC platform. 495 496config MIPS_MALTA 497 bool "MIPS Malta board" 498 select ARCH_MAY_HAVE_PC_FDC 499 select ARCH_MIGHT_HAVE_PC_PARPORT 500 select ARCH_MIGHT_HAVE_PC_SERIO 501 select BOOT_ELF32 502 select BOOT_RAW 503 select BUILTIN_DTB 504 select CEVT_R4K 505 select CLKSRC_MIPS_GIC 506 select COMMON_CLK 507 select CSRC_R4K 508 select DMA_MAYBE_COHERENT 509 select GENERIC_ISA_DMA 510 select HAVE_PCSPKR_PLATFORM 511 select HAVE_PCI 512 select I8253 513 select I8259 514 select IRQ_MIPS_CPU 515 select LIBFDT 516 select MIPS_BONITO64 517 select MIPS_CPU_SCACHE 518 select MIPS_GIC 519 select MIPS_L1_CACHE_SHIFT_6 520 select MIPS_MSC 521 select PCI_GT64XXX_PCI0 522 select SMP_UP if SMP 523 select SWAP_IO_SPACE 524 select SYS_HAS_CPU_MIPS32_R1 525 select SYS_HAS_CPU_MIPS32_R2 526 select SYS_HAS_CPU_MIPS32_R3_5 527 select SYS_HAS_CPU_MIPS32_R5 528 select SYS_HAS_CPU_MIPS32_R6 529 select SYS_HAS_CPU_MIPS64_R1 530 select SYS_HAS_CPU_MIPS64_R2 531 select SYS_HAS_CPU_MIPS64_R6 532 select SYS_HAS_CPU_NEVADA 533 select SYS_HAS_CPU_RM7000 534 select SYS_SUPPORTS_32BIT_KERNEL 535 select SYS_SUPPORTS_64BIT_KERNEL 536 select SYS_SUPPORTS_BIG_ENDIAN 537 select SYS_SUPPORTS_HIGHMEM 538 select SYS_SUPPORTS_LITTLE_ENDIAN 539 select SYS_SUPPORTS_MICROMIPS 540 select SYS_SUPPORTS_MIPS16 541 select SYS_SUPPORTS_MIPS_CMP 542 select SYS_SUPPORTS_MIPS_CPS 543 select SYS_SUPPORTS_MULTITHREADING 544 select SYS_SUPPORTS_RELOCATABLE 545 select SYS_SUPPORTS_SMARTMIPS 546 select SYS_SUPPORTS_VPE_LOADER 547 select SYS_SUPPORTS_ZBOOT 548 select USE_OF 549 select ZONE_DMA32 if 64BIT 550 help 551 This enables support for the MIPS Technologies Malta evaluation 552 board. 553 554config MACH_PIC32 555 bool "Microchip PIC32 Family" 556 help 557 This enables support for the Microchip PIC32 family of platforms. 558 559 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 560 microcontrollers. 561 562config NEC_MARKEINS 563 bool "NEC EMMA2RH Mark-eins board" 564 select SOC_EMMA2RH 565 select HAVE_PCI 566 help 567 This enables support for the NEC Electronics Mark-eins boards. 568 569config MACH_VR41XX 570 bool "NEC VR4100 series based machines" 571 select CEVT_R4K 572 select CSRC_R4K 573 select SYS_HAS_CPU_VR41XX 574 select SYS_SUPPORTS_MIPS16 575 select GPIOLIB 576 577config NXP_STB220 578 bool "NXP STB220 board" 579 select SOC_PNX833X 580 help 581 Support for NXP Semiconductors STB220 Development Board. 582 583config NXP_STB225 584 bool "NXP 225 board" 585 select SOC_PNX833X 586 select SOC_PNX8335 587 help 588 Support for NXP Semiconductors STB225 Development Board. 589 590config PMC_MSP 591 bool "PMC-Sierra MSP chipsets" 592 select CEVT_R4K 593 select CSRC_R4K 594 select DMA_NONCOHERENT 595 select SWAP_IO_SPACE 596 select NO_EXCEPT_FILL 597 select BOOT_RAW 598 select SYS_HAS_CPU_MIPS32_R1 599 select SYS_HAS_CPU_MIPS32_R2 600 select SYS_SUPPORTS_32BIT_KERNEL 601 select SYS_SUPPORTS_BIG_ENDIAN 602 select SYS_SUPPORTS_MIPS16 603 select IRQ_MIPS_CPU 604 select SERIAL_8250 605 select SERIAL_8250_CONSOLE 606 select USB_EHCI_BIG_ENDIAN_MMIO 607 select USB_EHCI_BIG_ENDIAN_DESC 608 help 609 This adds support for the PMC-Sierra family of Multi-Service 610 Processor System-On-A-Chips. These parts include a number 611 of integrated peripherals, interfaces and DSPs in addition to 612 a variety of MIPS cores. 613 614config RALINK 615 bool "Ralink based machines" 616 select CEVT_R4K 617 select CSRC_R4K 618 select BOOT_RAW 619 select DMA_NONCOHERENT 620 select IRQ_MIPS_CPU 621 select USE_OF 622 select SYS_HAS_CPU_MIPS32_R1 623 select SYS_HAS_CPU_MIPS32_R2 624 select SYS_SUPPORTS_32BIT_KERNEL 625 select SYS_SUPPORTS_LITTLE_ENDIAN 626 select SYS_SUPPORTS_MIPS16 627 select SYS_HAS_EARLY_PRINTK 628 select CLKDEV_LOOKUP 629 select ARCH_HAS_RESET_CONTROLLER 630 select RESET_CONTROLLER 631 632config SGI_IP22 633 bool "SGI IP22 (Indy/Indigo2)" 634 select FW_ARC 635 select FW_ARC32 636 select ARCH_MIGHT_HAVE_PC_SERIO 637 select BOOT_ELF32 638 select CEVT_R4K 639 select CSRC_R4K 640 select DEFAULT_SGI_PARTITION 641 select DMA_NONCOHERENT 642 select HAVE_EISA 643 select I8253 644 select I8259 645 select IP22_CPU_SCACHE 646 select IRQ_MIPS_CPU 647 select GENERIC_ISA_DMA_SUPPORT_BROKEN 648 select SGI_HAS_I8042 649 select SGI_HAS_INDYDOG 650 select SGI_HAS_HAL2 651 select SGI_HAS_SEEQ 652 select SGI_HAS_WD93 653 select SGI_HAS_ZILOG 654 select SWAP_IO_SPACE 655 select SYS_HAS_CPU_R4X00 656 select SYS_HAS_CPU_R5000 657 # 658 # Disable EARLY_PRINTK for now since it leads to overwritten prom 659 # memory during early boot on some machines. 660 # 661 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 662 # for a more details discussion 663 # 664 # select SYS_HAS_EARLY_PRINTK 665 select SYS_SUPPORTS_32BIT_KERNEL 666 select SYS_SUPPORTS_64BIT_KERNEL 667 select SYS_SUPPORTS_BIG_ENDIAN 668 select MIPS_L1_CACHE_SHIFT_7 669 help 670 This are the SGI Indy, Challenge S and Indigo2, as well as certain 671 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 672 that runs on these, say Y here. 673 674config SGI_IP27 675 bool "SGI IP27 (Origin200/2000)" 676 select ARCH_HAS_PHYS_TO_DMA 677 select FW_ARC 678 select FW_ARC64 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 FW_ARC 702 select FW_ARC64 703 select ARCH_MIGHT_HAVE_PC_SERIO 704 select BOOT_ELF64 705 select CEVT_R4K 706 select CSRC_R4K 707 select DEFAULT_SGI_PARTITION 708 select DMA_NONCOHERENT 709 select GENERIC_ISA_DMA_SUPPORT_BROKEN 710 select IRQ_MIPS_CPU 711 select HAVE_EISA 712 select I8253 713 select I8259 714 select SGI_HAS_I8042 715 select SGI_HAS_INDYDOG 716 select SGI_HAS_HAL2 717 select SGI_HAS_SEEQ 718 select SGI_HAS_WD93 719 select SGI_HAS_ZILOG 720 select SWAP_IO_SPACE 721 select SYS_HAS_CPU_R10000 722 # 723 # Disable EARLY_PRINTK for now since it leads to overwritten prom 724 # memory during early boot on some machines. 725 # 726 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 727 # for a more details discussion 728 # 729 # select SYS_HAS_EARLY_PRINTK 730 select SYS_SUPPORTS_64BIT_KERNEL 731 select SYS_SUPPORTS_BIG_ENDIAN 732 select MIPS_L1_CACHE_SHIFT_7 733 help 734 This is the SGI Indigo2 with R10000 processor. To compile a Linux 735 kernel that runs on these, say Y here. 736 737config SGI_IP32 738 bool "SGI IP32 (O2)" 739 select ARCH_HAS_PHYS_TO_DMA 740 select FW_ARC 741 select FW_ARC32 742 select BOOT_ELF32 743 select CEVT_R4K 744 select CSRC_R4K 745 select DMA_NONCOHERENT 746 select HAVE_PCI 747 select IRQ_MIPS_CPU 748 select R5000_CPU_SCACHE 749 select RM7000_CPU_SCACHE 750 select SYS_HAS_CPU_R5000 751 select SYS_HAS_CPU_R10000 if BROKEN 752 select SYS_HAS_CPU_RM7000 753 select SYS_HAS_CPU_NEVADA 754 select SYS_SUPPORTS_64BIT_KERNEL 755 select SYS_SUPPORTS_BIG_ENDIAN 756 help 757 If you want this kernel to run on SGI O2 workstation, say Y here. 758 759config SIBYTE_CRHINE 760 bool "Sibyte BCM91120C-CRhine" 761 select BOOT_ELF32 762 select SIBYTE_BCM1120 763 select SWAP_IO_SPACE 764 select SYS_HAS_CPU_SB1 765 select SYS_SUPPORTS_BIG_ENDIAN 766 select SYS_SUPPORTS_LITTLE_ENDIAN 767 768config SIBYTE_CARMEL 769 bool "Sibyte BCM91120x-Carmel" 770 select BOOT_ELF32 771 select SIBYTE_BCM1120 772 select SWAP_IO_SPACE 773 select SYS_HAS_CPU_SB1 774 select SYS_SUPPORTS_BIG_ENDIAN 775 select SYS_SUPPORTS_LITTLE_ENDIAN 776 777config SIBYTE_CRHONE 778 bool "Sibyte BCM91125C-CRhone" 779 select BOOT_ELF32 780 select SIBYTE_BCM1125 781 select SWAP_IO_SPACE 782 select SYS_HAS_CPU_SB1 783 select SYS_SUPPORTS_BIG_ENDIAN 784 select SYS_SUPPORTS_HIGHMEM 785 select SYS_SUPPORTS_LITTLE_ENDIAN 786 787config SIBYTE_RHONE 788 bool "Sibyte BCM91125E-Rhone" 789 select BOOT_ELF32 790 select SIBYTE_BCM1125H 791 select SWAP_IO_SPACE 792 select SYS_HAS_CPU_SB1 793 select SYS_SUPPORTS_BIG_ENDIAN 794 select SYS_SUPPORTS_LITTLE_ENDIAN 795 796config SIBYTE_SWARM 797 bool "Sibyte BCM91250A-SWARM" 798 select BOOT_ELF32 799 select HAVE_PATA_PLATFORM 800 select SIBYTE_SB1250 801 select SWAP_IO_SPACE 802 select SYS_HAS_CPU_SB1 803 select SYS_SUPPORTS_BIG_ENDIAN 804 select SYS_SUPPORTS_HIGHMEM 805 select SYS_SUPPORTS_LITTLE_ENDIAN 806 select ZONE_DMA32 if 64BIT 807 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 808 809config SIBYTE_LITTLESUR 810 bool "Sibyte BCM91250C2-LittleSur" 811 select BOOT_ELF32 812 select HAVE_PATA_PLATFORM 813 select SIBYTE_SB1250 814 select SWAP_IO_SPACE 815 select SYS_HAS_CPU_SB1 816 select SYS_SUPPORTS_BIG_ENDIAN 817 select SYS_SUPPORTS_HIGHMEM 818 select SYS_SUPPORTS_LITTLE_ENDIAN 819 select ZONE_DMA32 if 64BIT 820 821config SIBYTE_SENTOSA 822 bool "Sibyte BCM91250E-Sentosa" 823 select BOOT_ELF32 824 select SIBYTE_SB1250 825 select SWAP_IO_SPACE 826 select SYS_HAS_CPU_SB1 827 select SYS_SUPPORTS_BIG_ENDIAN 828 select SYS_SUPPORTS_LITTLE_ENDIAN 829 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 830 831config SIBYTE_BIGSUR 832 bool "Sibyte BCM91480B-BigSur" 833 select BOOT_ELF32 834 select NR_CPUS_DEFAULT_4 835 select SIBYTE_BCM1x80 836 select SWAP_IO_SPACE 837 select SYS_HAS_CPU_SB1 838 select SYS_SUPPORTS_BIG_ENDIAN 839 select SYS_SUPPORTS_HIGHMEM 840 select SYS_SUPPORTS_LITTLE_ENDIAN 841 select ZONE_DMA32 if 64BIT 842 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 843 844config SNI_RM 845 bool "SNI RM200/300/400" 846 select FW_ARC if CPU_LITTLE_ENDIAN 847 select FW_ARC32 if CPU_LITTLE_ENDIAN 848 select FW_SNIPROM if CPU_BIG_ENDIAN 849 select ARCH_MAY_HAVE_PC_FDC 850 select ARCH_MIGHT_HAVE_PC_PARPORT 851 select ARCH_MIGHT_HAVE_PC_SERIO 852 select BOOT_ELF32 853 select CEVT_R4K 854 select CSRC_R4K 855 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 856 select DMA_NONCOHERENT 857 select GENERIC_ISA_DMA 858 select HAVE_EISA 859 select HAVE_PCSPKR_PLATFORM 860 select HAVE_PCI 861 select IRQ_MIPS_CPU 862 select I8253 863 select I8259 864 select ISA 865 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 866 select SYS_HAS_CPU_R4X00 867 select SYS_HAS_CPU_R5000 868 select SYS_HAS_CPU_R10000 869 select R5000_CPU_SCACHE 870 select SYS_HAS_EARLY_PRINTK 871 select SYS_SUPPORTS_32BIT_KERNEL 872 select SYS_SUPPORTS_64BIT_KERNEL 873 select SYS_SUPPORTS_BIG_ENDIAN 874 select SYS_SUPPORTS_HIGHMEM 875 select SYS_SUPPORTS_LITTLE_ENDIAN 876 help 877 The SNI RM200/300/400 are MIPS-based machines manufactured by 878 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 879 Technology and now in turn merged with Fujitsu. Say Y here to 880 support this machine type. 881 882config MACH_TX39XX 883 bool "Toshiba TX39 series based machines" 884 885config MACH_TX49XX 886 bool "Toshiba TX49 series based machines" 887 888config MIKROTIK_RB532 889 bool "Mikrotik RB532 boards" 890 select CEVT_R4K 891 select CSRC_R4K 892 select DMA_NONCOHERENT 893 select HAVE_PCI 894 select IRQ_MIPS_CPU 895 select SYS_HAS_CPU_MIPS32_R1 896 select SYS_SUPPORTS_32BIT_KERNEL 897 select SYS_SUPPORTS_LITTLE_ENDIAN 898 select SWAP_IO_SPACE 899 select BOOT_RAW 900 select GPIOLIB 901 select MIPS_L1_CACHE_SHIFT_4 902 help 903 Support the Mikrotik(tm) RouterBoard 532 series, 904 based on the IDT RC32434 SoC. 905 906config CAVIUM_OCTEON_SOC 907 bool "Cavium Networks Octeon SoC based boards" 908 select CEVT_R4K 909 select ARCH_HAS_PHYS_TO_DMA 910 select HAVE_RAPIDIO 911 select PHYS_ADDR_T_64BIT 912 select SYS_SUPPORTS_64BIT_KERNEL 913 select SYS_SUPPORTS_BIG_ENDIAN 914 select EDAC_SUPPORT 915 select EDAC_ATOMIC_SCRUB 916 select SYS_SUPPORTS_LITTLE_ENDIAN 917 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 918 select SYS_HAS_EARLY_PRINTK 919 select SYS_HAS_CPU_CAVIUM_OCTEON 920 select HAVE_PCI 921 select ZONE_DMA32 922 select HOLES_IN_ZONE 923 select GPIOLIB 924 select LIBFDT 925 select USE_OF 926 select ARCH_SPARSEMEM_ENABLE 927 select SYS_SUPPORTS_SMP 928 select NR_CPUS_DEFAULT_64 929 select MIPS_NR_CPU_NR_MAP_1024 930 select BUILTIN_DTB 931 select MTD_COMPLEX_MAPPINGS 932 select SWIOTLB 933 select SYS_SUPPORTS_RELOCATABLE 934 help 935 This option supports all of the Octeon reference boards from Cavium 936 Networks. It builds a kernel that dynamically determines the Octeon 937 CPU type and supports all known board reference implementations. 938 Some of the supported boards are: 939 EBT3000 940 EBH3000 941 EBH3100 942 Thunder 943 Kodama 944 Hikari 945 Say Y here for most Octeon reference boards. 946 947config NLM_XLR_BOARD 948 bool "Netlogic XLR/XLS based systems" 949 select BOOT_ELF32 950 select NLM_COMMON 951 select SYS_HAS_CPU_XLR 952 select SYS_SUPPORTS_SMP 953 select HAVE_PCI 954 select SWAP_IO_SPACE 955 select SYS_SUPPORTS_32BIT_KERNEL 956 select SYS_SUPPORTS_64BIT_KERNEL 957 select PHYS_ADDR_T_64BIT 958 select SYS_SUPPORTS_BIG_ENDIAN 959 select SYS_SUPPORTS_HIGHMEM 960 select NR_CPUS_DEFAULT_32 961 select CEVT_R4K 962 select CSRC_R4K 963 select IRQ_MIPS_CPU 964 select ZONE_DMA32 if 64BIT 965 select SYNC_R4K 966 select SYS_HAS_EARLY_PRINTK 967 select SYS_SUPPORTS_ZBOOT 968 select SYS_SUPPORTS_ZBOOT_UART16550 969 help 970 Support for systems based on Netlogic XLR and XLS processors. 971 Say Y here if you have a XLR or XLS based board. 972 973config NLM_XLP_BOARD 974 bool "Netlogic XLP based systems" 975 select BOOT_ELF32 976 select NLM_COMMON 977 select SYS_HAS_CPU_XLP 978 select SYS_SUPPORTS_SMP 979 select HAVE_PCI 980 select SYS_SUPPORTS_32BIT_KERNEL 981 select SYS_SUPPORTS_64BIT_KERNEL 982 select PHYS_ADDR_T_64BIT 983 select GPIOLIB 984 select SYS_SUPPORTS_BIG_ENDIAN 985 select SYS_SUPPORTS_LITTLE_ENDIAN 986 select SYS_SUPPORTS_HIGHMEM 987 select NR_CPUS_DEFAULT_32 988 select CEVT_R4K 989 select CSRC_R4K 990 select IRQ_MIPS_CPU 991 select ZONE_DMA32 if 64BIT 992 select SYNC_R4K 993 select SYS_HAS_EARLY_PRINTK 994 select USE_OF 995 select SYS_SUPPORTS_ZBOOT 996 select SYS_SUPPORTS_ZBOOT_UART16550 997 help 998 This board is based on Netlogic XLP Processor. 999 Say Y here if you have a XLP based board. 1000 1001config MIPS_PARAVIRT 1002 bool "Para-Virtualized guest system" 1003 select CEVT_R4K 1004 select CSRC_R4K 1005 select SYS_SUPPORTS_64BIT_KERNEL 1006 select SYS_SUPPORTS_32BIT_KERNEL 1007 select SYS_SUPPORTS_BIG_ENDIAN 1008 select SYS_SUPPORTS_SMP 1009 select NR_CPUS_DEFAULT_4 1010 select SYS_HAS_EARLY_PRINTK 1011 select SYS_HAS_CPU_MIPS32_R2 1012 select SYS_HAS_CPU_MIPS64_R2 1013 select SYS_HAS_CPU_CAVIUM_OCTEON 1014 select HAVE_PCI 1015 select SWAP_IO_SPACE 1016 help 1017 This option supports guest running under ???? 1018 1019endchoice 1020 1021source "arch/mips/alchemy/Kconfig" 1022source "arch/mips/ath25/Kconfig" 1023source "arch/mips/ath79/Kconfig" 1024source "arch/mips/bcm47xx/Kconfig" 1025source "arch/mips/bcm63xx/Kconfig" 1026source "arch/mips/bmips/Kconfig" 1027source "arch/mips/generic/Kconfig" 1028source "arch/mips/jazz/Kconfig" 1029source "arch/mips/jz4740/Kconfig" 1030source "arch/mips/lantiq/Kconfig" 1031source "arch/mips/lasat/Kconfig" 1032source "arch/mips/pic32/Kconfig" 1033source "arch/mips/pistachio/Kconfig" 1034source "arch/mips/pmcs-msp71xx/Kconfig" 1035source "arch/mips/ralink/Kconfig" 1036source "arch/mips/sgi-ip27/Kconfig" 1037source "arch/mips/sibyte/Kconfig" 1038source "arch/mips/txx9/Kconfig" 1039source "arch/mips/vr41xx/Kconfig" 1040source "arch/mips/cavium-octeon/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_CONSOLE 1357 bool "ARC console support" 1358 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1359 1360config ARC_MEMORY 1361 bool 1362 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1363 default y 1364 1365config ARC_PROMLIB 1366 bool 1367 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1368 default y 1369 1370config FW_ARC64 1371 bool 1372 1373config BOOT_ELF64 1374 bool 1375 1376menu "CPU selection" 1377 1378choice 1379 prompt "CPU type" 1380 default CPU_R4X00 1381 1382config CPU_LOONGSON3 1383 bool "Loongson 3 CPU" 1384 depends on SYS_HAS_CPU_LOONGSON3 1385 select ARCH_HAS_PHYS_TO_DMA 1386 select CPU_SUPPORTS_64BIT_KERNEL 1387 select CPU_SUPPORTS_HIGHMEM 1388 select CPU_SUPPORTS_HUGEPAGES 1389 select CPU_HAS_LOAD_STORE_LR 1390 select WEAK_ORDERING 1391 select WEAK_REORDERING_BEYOND_LLSC 1392 select MIPS_PGD_C0_CONTEXT 1393 select MIPS_L1_CACHE_SHIFT_6 1394 select GPIOLIB 1395 select SWIOTLB 1396 help 1397 The Loongson 3 processor implements the MIPS64R2 instruction 1398 set with many extensions. 1399 1400config LOONGSON3_ENHANCEMENT 1401 bool "New Loongson 3 CPU Enhancements" 1402 default n 1403 select CPU_MIPSR2 1404 select CPU_HAS_PREFETCH 1405 depends on CPU_LOONGSON3 1406 help 1407 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1408 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1409 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1410 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1411 Fast TLB refill support, etc. 1412 1413 This option enable those enhancements which are not probed at run 1414 time. If you want a generic kernel to run on all Loongson 3 machines, 1415 please say 'N' here. If you want a high-performance kernel to run on 1416 new Loongson 3 machines only, please say 'Y' here. 1417 1418config CPU_LOONGSON3_WORKAROUNDS 1419 bool "Old Loongson 3 LLSC Workarounds" 1420 default y if SMP 1421 depends on CPU_LOONGSON3 1422 help 1423 Loongson 3 processors have the llsc issues which require workarounds. 1424 Without workarounds the system may hang unexpectedly. 1425 1426 Newer Loongson 3 will fix these issues and no workarounds are needed. 1427 The workarounds have no significant side effect on them but may 1428 decrease the performance of the system so this option should be 1429 disabled unless the kernel is intended to be run on old systems. 1430 1431 If unsure, please say Y. 1432 1433config CPU_LOONGSON2E 1434 bool "Loongson 2E" 1435 depends on SYS_HAS_CPU_LOONGSON2E 1436 select CPU_LOONGSON2 1437 help 1438 The Loongson 2E processor implements the MIPS III instruction set 1439 with many extensions. 1440 1441 It has an internal FPGA northbridge, which is compatible to 1442 bonito64. 1443 1444config CPU_LOONGSON2F 1445 bool "Loongson 2F" 1446 depends on SYS_HAS_CPU_LOONGSON2F 1447 select CPU_LOONGSON2 1448 select GPIOLIB 1449 help 1450 The Loongson 2F processor implements the MIPS III instruction set 1451 with many extensions. 1452 1453 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1454 have a similar programming interface with FPGA northbridge used in 1455 Loongson2E. 1456 1457config CPU_LOONGSON1B 1458 bool "Loongson 1B" 1459 depends on SYS_HAS_CPU_LOONGSON1B 1460 select CPU_LOONGSON1 1461 select LEDS_GPIO_REGISTER 1462 help 1463 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1464 Release 1 instruction set and part of the MIPS32 Release 2 1465 instruction set. 1466 1467config CPU_LOONGSON1C 1468 bool "Loongson 1C" 1469 depends on SYS_HAS_CPU_LOONGSON1C 1470 select CPU_LOONGSON1 1471 select LEDS_GPIO_REGISTER 1472 help 1473 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1474 Release 1 instruction set and part of the MIPS32 Release 2 1475 instruction set. 1476 1477config CPU_MIPS32_R1 1478 bool "MIPS32 Release 1" 1479 depends on SYS_HAS_CPU_MIPS32_R1 1480 select CPU_HAS_PREFETCH 1481 select CPU_HAS_LOAD_STORE_LR 1482 select CPU_SUPPORTS_32BIT_KERNEL 1483 select CPU_SUPPORTS_HIGHMEM 1484 help 1485 Choose this option to build a kernel for release 1 or later of the 1486 MIPS32 architecture. Most modern embedded systems with a 32-bit 1487 MIPS processor are based on a MIPS32 processor. If you know the 1488 specific type of processor in your system, choose those that one 1489 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1490 Release 2 of the MIPS32 architecture is available since several 1491 years so chances are you even have a MIPS32 Release 2 processor 1492 in which case you should choose CPU_MIPS32_R2 instead for better 1493 performance. 1494 1495config CPU_MIPS32_R2 1496 bool "MIPS32 Release 2" 1497 depends on SYS_HAS_CPU_MIPS32_R2 1498 select CPU_HAS_PREFETCH 1499 select CPU_HAS_LOAD_STORE_LR 1500 select CPU_SUPPORTS_32BIT_KERNEL 1501 select CPU_SUPPORTS_HIGHMEM 1502 select CPU_SUPPORTS_MSA 1503 select HAVE_KVM 1504 help 1505 Choose this option to build a kernel for release 2 or later of the 1506 MIPS32 architecture. Most modern embedded systems with a 32-bit 1507 MIPS processor are based on a MIPS32 processor. If you know the 1508 specific type of processor in your system, choose those that one 1509 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1510 1511config CPU_MIPS32_R6 1512 bool "MIPS32 Release 6" 1513 depends on SYS_HAS_CPU_MIPS32_R6 1514 select CPU_HAS_PREFETCH 1515 select CPU_SUPPORTS_32BIT_KERNEL 1516 select CPU_SUPPORTS_HIGHMEM 1517 select CPU_SUPPORTS_MSA 1518 select HAVE_KVM 1519 select MIPS_O32_FP64_SUPPORT 1520 help 1521 Choose this option to build a kernel for release 6 or later of the 1522 MIPS32 architecture. New MIPS processors, starting with the Warrior 1523 family, are based on a MIPS32r6 processor. If you own an older 1524 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1525 1526config CPU_MIPS64_R1 1527 bool "MIPS64 Release 1" 1528 depends on SYS_HAS_CPU_MIPS64_R1 1529 select CPU_HAS_PREFETCH 1530 select CPU_HAS_LOAD_STORE_LR 1531 select CPU_SUPPORTS_32BIT_KERNEL 1532 select CPU_SUPPORTS_64BIT_KERNEL 1533 select CPU_SUPPORTS_HIGHMEM 1534 select CPU_SUPPORTS_HUGEPAGES 1535 help 1536 Choose this option to build a kernel for release 1 or later of the 1537 MIPS64 architecture. Many modern embedded systems with a 64-bit 1538 MIPS processor are based on a MIPS64 processor. If you know the 1539 specific type of processor in your system, choose those that one 1540 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1541 Release 2 of the MIPS64 architecture is available since several 1542 years so chances are you even have a MIPS64 Release 2 processor 1543 in which case you should choose CPU_MIPS64_R2 instead for better 1544 performance. 1545 1546config CPU_MIPS64_R2 1547 bool "MIPS64 Release 2" 1548 depends on SYS_HAS_CPU_MIPS64_R2 1549 select CPU_HAS_PREFETCH 1550 select CPU_HAS_LOAD_STORE_LR 1551 select CPU_SUPPORTS_32BIT_KERNEL 1552 select CPU_SUPPORTS_64BIT_KERNEL 1553 select CPU_SUPPORTS_HIGHMEM 1554 select CPU_SUPPORTS_HUGEPAGES 1555 select CPU_SUPPORTS_MSA 1556 select HAVE_KVM 1557 help 1558 Choose this option to build a kernel for release 2 or later of the 1559 MIPS64 architecture. Many modern embedded systems with a 64-bit 1560 MIPS processor are based on a MIPS64 processor. If you know the 1561 specific type of processor in your system, choose those that one 1562 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1563 1564config CPU_MIPS64_R6 1565 bool "MIPS64 Release 6" 1566 depends on SYS_HAS_CPU_MIPS64_R6 1567 select CPU_HAS_PREFETCH 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 select CPU_SUPPORTS_64BIT_KERNEL 1570 select CPU_SUPPORTS_HIGHMEM 1571 select CPU_SUPPORTS_HUGEPAGES 1572 select CPU_SUPPORTS_MSA 1573 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1574 select HAVE_KVM 1575 help 1576 Choose this option to build a kernel for release 6 or later of the 1577 MIPS64 architecture. New MIPS processors, starting with the Warrior 1578 family, are based on a MIPS64r6 processor. If you own an older 1579 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1580 1581config CPU_R3000 1582 bool "R3000" 1583 depends on SYS_HAS_CPU_R3000 1584 select CPU_HAS_WB 1585 select CPU_HAS_LOAD_STORE_LR 1586 select CPU_R3K_TLB 1587 select CPU_SUPPORTS_32BIT_KERNEL 1588 select CPU_SUPPORTS_HIGHMEM 1589 help 1590 Please make sure to pick the right CPU type. Linux/MIPS is not 1591 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1592 *not* work on R4000 machines and vice versa. However, since most 1593 of the supported machines have an R4000 (or similar) CPU, R4x00 1594 might be a safe bet. If the resulting kernel does not work, 1595 try to recompile with R3000. 1596 1597config CPU_TX39XX 1598 bool "R39XX" 1599 depends on SYS_HAS_CPU_TX39XX 1600 select CPU_SUPPORTS_32BIT_KERNEL 1601 select CPU_HAS_LOAD_STORE_LR 1602 select CPU_R3K_TLB 1603 1604config CPU_VR41XX 1605 bool "R41xx" 1606 depends on SYS_HAS_CPU_VR41XX 1607 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_HAS_LOAD_STORE_LR 1610 help 1611 The options selects support for the NEC VR4100 series of processors. 1612 Only choose this option if you have one of these processors as a 1613 kernel built with this option will not run on any other type of 1614 processor or vice versa. 1615 1616config CPU_R4X00 1617 bool "R4x00" 1618 depends on SYS_HAS_CPU_R4X00 1619 select CPU_SUPPORTS_32BIT_KERNEL 1620 select CPU_SUPPORTS_64BIT_KERNEL 1621 select CPU_SUPPORTS_HUGEPAGES 1622 select CPU_HAS_LOAD_STORE_LR 1623 help 1624 MIPS Technologies R4000-series processors other than 4300, including 1625 the R4000, R4400, R4600, and 4700. 1626 1627config CPU_TX49XX 1628 bool "R49XX" 1629 depends on SYS_HAS_CPU_TX49XX 1630 select CPU_HAS_PREFETCH 1631 select CPU_HAS_LOAD_STORE_LR 1632 select CPU_SUPPORTS_32BIT_KERNEL 1633 select CPU_SUPPORTS_64BIT_KERNEL 1634 select CPU_SUPPORTS_HUGEPAGES 1635 1636config CPU_R5000 1637 bool "R5000" 1638 depends on SYS_HAS_CPU_R5000 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 select CPU_SUPPORTS_HUGEPAGES 1642 select CPU_HAS_LOAD_STORE_LR 1643 help 1644 MIPS Technologies R5000-series processors other than the Nevada. 1645 1646config CPU_R5500 1647 bool "R5500" 1648 depends on SYS_HAS_CPU_R5500 1649 select CPU_SUPPORTS_32BIT_KERNEL 1650 select CPU_SUPPORTS_64BIT_KERNEL 1651 select CPU_SUPPORTS_HUGEPAGES 1652 select CPU_HAS_LOAD_STORE_LR 1653 help 1654 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1655 instruction set. 1656 1657config CPU_NEVADA 1658 bool "RM52xx" 1659 depends on SYS_HAS_CPU_NEVADA 1660 select CPU_SUPPORTS_32BIT_KERNEL 1661 select CPU_SUPPORTS_64BIT_KERNEL 1662 select CPU_SUPPORTS_HUGEPAGES 1663 select CPU_HAS_LOAD_STORE_LR 1664 help 1665 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1666 1667config CPU_R10000 1668 bool "R10000" 1669 depends on SYS_HAS_CPU_R10000 1670 select CPU_HAS_PREFETCH 1671 select CPU_HAS_LOAD_STORE_LR 1672 select CPU_SUPPORTS_32BIT_KERNEL 1673 select CPU_SUPPORTS_64BIT_KERNEL 1674 select CPU_SUPPORTS_HIGHMEM 1675 select CPU_SUPPORTS_HUGEPAGES 1676 help 1677 MIPS Technologies R10000-series processors. 1678 1679config CPU_RM7000 1680 bool "RM7000" 1681 depends on SYS_HAS_CPU_RM7000 1682 select CPU_HAS_PREFETCH 1683 select CPU_HAS_LOAD_STORE_LR 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HIGHMEM 1687 select CPU_SUPPORTS_HUGEPAGES 1688 1689config CPU_SB1 1690 bool "SB1" 1691 depends on SYS_HAS_CPU_SB1 1692 select CPU_HAS_LOAD_STORE_LR 1693 select CPU_SUPPORTS_32BIT_KERNEL 1694 select CPU_SUPPORTS_64BIT_KERNEL 1695 select CPU_SUPPORTS_HIGHMEM 1696 select CPU_SUPPORTS_HUGEPAGES 1697 select WEAK_ORDERING 1698 1699config CPU_CAVIUM_OCTEON 1700 bool "Cavium Octeon processor" 1701 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1702 select CPU_HAS_PREFETCH 1703 select CPU_HAS_LOAD_STORE_LR 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select WEAK_ORDERING 1706 select CPU_SUPPORTS_HIGHMEM 1707 select CPU_SUPPORTS_HUGEPAGES 1708 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1709 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1710 select MIPS_L1_CACHE_SHIFT_7 1711 select HAVE_KVM 1712 help 1713 The Cavium Octeon processor is a highly integrated chip containing 1714 many ethernet hardware widgets for networking tasks. The processor 1715 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1716 Full details can be found at http://www.caviumnetworks.com. 1717 1718config CPU_BMIPS 1719 bool "Broadcom BMIPS" 1720 depends on SYS_HAS_CPU_BMIPS 1721 select CPU_MIPS32 1722 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1723 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1724 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1725 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1726 select CPU_SUPPORTS_32BIT_KERNEL 1727 select DMA_NONCOHERENT 1728 select IRQ_MIPS_CPU 1729 select SWAP_IO_SPACE 1730 select WEAK_ORDERING 1731 select CPU_SUPPORTS_HIGHMEM 1732 select CPU_HAS_PREFETCH 1733 select CPU_HAS_LOAD_STORE_LR 1734 select CPU_SUPPORTS_CPUFREQ 1735 select MIPS_EXTERNAL_TIMER 1736 help 1737 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1738 1739config CPU_XLR 1740 bool "Netlogic XLR SoC" 1741 depends on SYS_HAS_CPU_XLR 1742 select CPU_HAS_LOAD_STORE_LR 1743 select CPU_SUPPORTS_32BIT_KERNEL 1744 select CPU_SUPPORTS_64BIT_KERNEL 1745 select CPU_SUPPORTS_HIGHMEM 1746 select CPU_SUPPORTS_HUGEPAGES 1747 select WEAK_ORDERING 1748 select WEAK_REORDERING_BEYOND_LLSC 1749 help 1750 Netlogic Microsystems XLR/XLS processors. 1751 1752config CPU_XLP 1753 bool "Netlogic XLP SoC" 1754 depends on SYS_HAS_CPU_XLP 1755 select CPU_SUPPORTS_32BIT_KERNEL 1756 select CPU_SUPPORTS_64BIT_KERNEL 1757 select CPU_SUPPORTS_HIGHMEM 1758 select WEAK_ORDERING 1759 select WEAK_REORDERING_BEYOND_LLSC 1760 select CPU_HAS_PREFETCH 1761 select CPU_HAS_LOAD_STORE_LR 1762 select CPU_MIPSR2 1763 select CPU_SUPPORTS_HUGEPAGES 1764 select MIPS_ASID_BITS_VARIABLE 1765 help 1766 Netlogic Microsystems XLP processors. 1767endchoice 1768 1769config CPU_MIPS32_3_5_FEATURES 1770 bool "MIPS32 Release 3.5 Features" 1771 depends on SYS_HAS_CPU_MIPS32_R3_5 1772 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1773 help 1774 Choose this option to build a kernel for release 2 or later of the 1775 MIPS32 architecture including features from the 3.5 release such as 1776 support for Enhanced Virtual Addressing (EVA). 1777 1778config CPU_MIPS32_3_5_EVA 1779 bool "Enhanced Virtual Addressing (EVA)" 1780 depends on CPU_MIPS32_3_5_FEATURES 1781 select EVA 1782 default y 1783 help 1784 Choose this option if you want to enable the Enhanced Virtual 1785 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1786 One of its primary benefits is an increase in the maximum size 1787 of lowmem (up to 3GB). If unsure, say 'N' here. 1788 1789config CPU_MIPS32_R5_FEATURES 1790 bool "MIPS32 Release 5 Features" 1791 depends on SYS_HAS_CPU_MIPS32_R5 1792 depends on CPU_MIPS32_R2 1793 help 1794 Choose this option to build a kernel for release 2 or later of the 1795 MIPS32 architecture including features from release 5 such as 1796 support for Extended Physical Addressing (XPA). 1797 1798config CPU_MIPS32_R5_XPA 1799 bool "Extended Physical Addressing (XPA)" 1800 depends on CPU_MIPS32_R5_FEATURES 1801 depends on !EVA 1802 depends on !PAGE_SIZE_4KB 1803 depends on SYS_SUPPORTS_HIGHMEM 1804 select XPA 1805 select HIGHMEM 1806 select PHYS_ADDR_T_64BIT 1807 default n 1808 help 1809 Choose this option if you want to enable the Extended Physical 1810 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1811 benefit is to increase physical addressing equal to or greater 1812 than 40 bits. Note that this has the side effect of turning on 1813 64-bit addressing which in turn makes the PTEs 64-bit in size. 1814 If unsure, say 'N' here. 1815 1816if CPU_LOONGSON2F 1817config CPU_NOP_WORKAROUNDS 1818 bool 1819 1820config CPU_JUMP_WORKAROUNDS 1821 bool 1822 1823config CPU_LOONGSON2F_WORKAROUNDS 1824 bool "Loongson 2F Workarounds" 1825 default y 1826 select CPU_NOP_WORKAROUNDS 1827 select CPU_JUMP_WORKAROUNDS 1828 help 1829 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1830 require workarounds. Without workarounds the system may hang 1831 unexpectedly. For more information please refer to the gas 1832 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1833 1834 Loongson 2F03 and later have fixed these issues and no workarounds 1835 are needed. The workarounds have no significant side effect on them 1836 but may decrease the performance of the system so this option should 1837 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1838 systems. 1839 1840 If unsure, please say Y. 1841endif # CPU_LOONGSON2F 1842 1843config SYS_SUPPORTS_ZBOOT 1844 bool 1845 select HAVE_KERNEL_GZIP 1846 select HAVE_KERNEL_BZIP2 1847 select HAVE_KERNEL_LZ4 1848 select HAVE_KERNEL_LZMA 1849 select HAVE_KERNEL_LZO 1850 select HAVE_KERNEL_XZ 1851 1852config SYS_SUPPORTS_ZBOOT_UART16550 1853 bool 1854 select SYS_SUPPORTS_ZBOOT 1855 1856config SYS_SUPPORTS_ZBOOT_UART_PROM 1857 bool 1858 select SYS_SUPPORTS_ZBOOT 1859 1860config CPU_LOONGSON2 1861 bool 1862 select CPU_SUPPORTS_32BIT_KERNEL 1863 select CPU_SUPPORTS_64BIT_KERNEL 1864 select CPU_SUPPORTS_HIGHMEM 1865 select CPU_SUPPORTS_HUGEPAGES 1866 select ARCH_HAS_PHYS_TO_DMA 1867 select CPU_HAS_LOAD_STORE_LR 1868 1869config CPU_LOONGSON1 1870 bool 1871 select CPU_MIPS32 1872 select CPU_MIPSR2 1873 select CPU_HAS_PREFETCH 1874 select CPU_HAS_LOAD_STORE_LR 1875 select CPU_SUPPORTS_32BIT_KERNEL 1876 select CPU_SUPPORTS_HIGHMEM 1877 select CPU_SUPPORTS_CPUFREQ 1878 1879config CPU_BMIPS32_3300 1880 select SMP_UP if SMP 1881 bool 1882 1883config CPU_BMIPS4350 1884 bool 1885 select SYS_SUPPORTS_SMP 1886 select SYS_SUPPORTS_HOTPLUG_CPU 1887 1888config CPU_BMIPS4380 1889 bool 1890 select MIPS_L1_CACHE_SHIFT_6 1891 select SYS_SUPPORTS_SMP 1892 select SYS_SUPPORTS_HOTPLUG_CPU 1893 select CPU_HAS_RIXI 1894 1895config CPU_BMIPS5000 1896 bool 1897 select MIPS_CPU_SCACHE 1898 select MIPS_L1_CACHE_SHIFT_7 1899 select SYS_SUPPORTS_SMP 1900 select SYS_SUPPORTS_HOTPLUG_CPU 1901 select CPU_HAS_RIXI 1902 1903config SYS_HAS_CPU_LOONGSON3 1904 bool 1905 select CPU_SUPPORTS_CPUFREQ 1906 select CPU_HAS_RIXI 1907 1908config SYS_HAS_CPU_LOONGSON2E 1909 bool 1910 1911config SYS_HAS_CPU_LOONGSON2F 1912 bool 1913 select CPU_SUPPORTS_CPUFREQ 1914 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1915 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1916 1917config SYS_HAS_CPU_LOONGSON1B 1918 bool 1919 1920config SYS_HAS_CPU_LOONGSON1C 1921 bool 1922 1923config SYS_HAS_CPU_MIPS32_R1 1924 bool 1925 1926config SYS_HAS_CPU_MIPS32_R2 1927 bool 1928 1929config SYS_HAS_CPU_MIPS32_R3_5 1930 bool 1931 1932config SYS_HAS_CPU_MIPS32_R5 1933 bool 1934 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1935 1936config SYS_HAS_CPU_MIPS32_R6 1937 bool 1938 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1939 1940config SYS_HAS_CPU_MIPS64_R1 1941 bool 1942 1943config SYS_HAS_CPU_MIPS64_R2 1944 bool 1945 1946config SYS_HAS_CPU_MIPS64_R6 1947 bool 1948 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1949 1950config SYS_HAS_CPU_R3000 1951 bool 1952 1953config SYS_HAS_CPU_TX39XX 1954 bool 1955 1956config SYS_HAS_CPU_VR41XX 1957 bool 1958 1959config SYS_HAS_CPU_R4X00 1960 bool 1961 1962config SYS_HAS_CPU_TX49XX 1963 bool 1964 1965config SYS_HAS_CPU_R5000 1966 bool 1967 1968config SYS_HAS_CPU_R5500 1969 bool 1970 1971config SYS_HAS_CPU_NEVADA 1972 bool 1973 1974config SYS_HAS_CPU_R10000 1975 bool 1976 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1977 1978config SYS_HAS_CPU_RM7000 1979 bool 1980 1981config SYS_HAS_CPU_SB1 1982 bool 1983 1984config SYS_HAS_CPU_CAVIUM_OCTEON 1985 bool 1986 1987config SYS_HAS_CPU_BMIPS 1988 bool 1989 1990config SYS_HAS_CPU_BMIPS32_3300 1991 bool 1992 select SYS_HAS_CPU_BMIPS 1993 1994config SYS_HAS_CPU_BMIPS4350 1995 bool 1996 select SYS_HAS_CPU_BMIPS 1997 1998config SYS_HAS_CPU_BMIPS4380 1999 bool 2000 select SYS_HAS_CPU_BMIPS 2001 2002config SYS_HAS_CPU_BMIPS5000 2003 bool 2004 select SYS_HAS_CPU_BMIPS 2005 select ARCH_HAS_SYNC_DMA_FOR_CPU 2006 2007config SYS_HAS_CPU_XLR 2008 bool 2009 2010config SYS_HAS_CPU_XLP 2011 bool 2012 2013# 2014# CPU may reorder R->R, R->W, W->R, W->W 2015# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2016# 2017config WEAK_ORDERING 2018 bool 2019 2020# 2021# CPU may reorder reads and writes beyond LL/SC 2022# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2023# 2024config WEAK_REORDERING_BEYOND_LLSC 2025 bool 2026endmenu 2027 2028# 2029# These two indicate any level of the MIPS32 and MIPS64 architecture 2030# 2031config CPU_MIPS32 2032 bool 2033 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2034 2035config CPU_MIPS64 2036 bool 2037 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2038 2039# 2040# These indicate the revision of the architecture 2041# 2042config CPU_MIPSR1 2043 bool 2044 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2045 2046config CPU_MIPSR2 2047 bool 2048 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2049 select CPU_HAS_RIXI 2050 select MIPS_SPRAM 2051 2052config CPU_MIPSR6 2053 bool 2054 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2055 select CPU_HAS_RIXI 2056 select HAVE_ARCH_BITREVERSE 2057 select MIPS_ASID_BITS_VARIABLE 2058 select MIPS_CRC_SUPPORT 2059 select MIPS_SPRAM 2060 2061config TARGET_ISA_REV 2062 int 2063 default 1 if CPU_MIPSR1 2064 default 2 if CPU_MIPSR2 2065 default 6 if CPU_MIPSR6 2066 default 0 2067 help 2068 Reflects the ISA revision being targeted by the kernel build. This 2069 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2070 2071config EVA 2072 bool 2073 2074config XPA 2075 bool 2076 2077config SYS_SUPPORTS_32BIT_KERNEL 2078 bool 2079config SYS_SUPPORTS_64BIT_KERNEL 2080 bool 2081config CPU_SUPPORTS_32BIT_KERNEL 2082 bool 2083config CPU_SUPPORTS_64BIT_KERNEL 2084 bool 2085config CPU_SUPPORTS_CPUFREQ 2086 bool 2087config CPU_SUPPORTS_ADDRWINCFG 2088 bool 2089config CPU_SUPPORTS_HUGEPAGES 2090 bool 2091 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2092config CPU_SUPPORTS_UNCACHED_ACCELERATED 2093 bool 2094config MIPS_PGD_C0_CONTEXT 2095 bool 2096 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2097 2098# 2099# Set to y for ptrace access to watch registers. 2100# 2101config HARDWARE_WATCHPOINTS 2102 bool 2103 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2104 2105menu "Kernel type" 2106 2107choice 2108 prompt "Kernel code model" 2109 help 2110 You should only select this option if you have a workload that 2111 actually benefits from 64-bit processing or if your machine has 2112 large memory. You will only be presented a single option in this 2113 menu if your system does not support both 32-bit and 64-bit kernels. 2114 2115config 32BIT 2116 bool "32-bit kernel" 2117 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2118 select TRAD_SIGNALS 2119 help 2120 Select this option if you want to build a 32-bit kernel. 2121 2122config 64BIT 2123 bool "64-bit kernel" 2124 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2125 help 2126 Select this option if you want to build a 64-bit kernel. 2127 2128endchoice 2129 2130config KVM_GUEST 2131 bool "KVM Guest Kernel" 2132 depends on BROKEN_ON_SMP 2133 help 2134 Select this option if building a guest kernel for KVM (Trap & Emulate) 2135 mode. 2136 2137config KVM_GUEST_TIMER_FREQ 2138 int "Count/Compare Timer Frequency (MHz)" 2139 depends on KVM_GUEST 2140 default 100 2141 help 2142 Set this to non-zero if building a guest kernel for KVM to skip RTC 2143 emulation when determining guest CPU Frequency. Instead, the guest's 2144 timer frequency is specified directly. 2145 2146config MIPS_VA_BITS_48 2147 bool "48 bits virtual memory" 2148 depends on 64BIT 2149 help 2150 Support a maximum at least 48 bits of application virtual 2151 memory. Default is 40 bits or less, depending on the CPU. 2152 For page sizes 16k and above, this option results in a small 2153 memory overhead for page tables. For 4k page size, a fourth 2154 level of page tables is added which imposes both a memory 2155 overhead as well as slower TLB fault handling. 2156 2157 If unsure, say N. 2158 2159choice 2160 prompt "Kernel page size" 2161 default PAGE_SIZE_4KB 2162 2163config PAGE_SIZE_4KB 2164 bool "4kB" 2165 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2166 help 2167 This option select the standard 4kB Linux page size. On some 2168 R3000-family processors this is the only available page size. Using 2169 4kB page size will minimize memory consumption and is therefore 2170 recommended for low memory systems. 2171 2172config PAGE_SIZE_8KB 2173 bool "8kB" 2174 depends on CPU_CAVIUM_OCTEON 2175 depends on !MIPS_VA_BITS_48 2176 help 2177 Using 8kB page size will result in higher performance kernel at 2178 the price of higher memory consumption. This option is available 2179 only on cnMIPS processors. Note that you will need a suitable Linux 2180 distribution to support this. 2181 2182config PAGE_SIZE_16KB 2183 bool "16kB" 2184 depends on !CPU_R3000 && !CPU_TX39XX 2185 help 2186 Using 16kB page size will result in higher performance kernel at 2187 the price of higher memory consumption. This option is available on 2188 all non-R3000 family processors. Note that you will need a suitable 2189 Linux distribution to support this. 2190 2191config PAGE_SIZE_32KB 2192 bool "32kB" 2193 depends on CPU_CAVIUM_OCTEON 2194 depends on !MIPS_VA_BITS_48 2195 help 2196 Using 32kB page size will result in higher performance kernel at 2197 the price of higher memory consumption. This option is available 2198 only on cnMIPS cores. Note that you will need a suitable Linux 2199 distribution to support this. 2200 2201config PAGE_SIZE_64KB 2202 bool "64kB" 2203 depends on !CPU_R3000 && !CPU_TX39XX 2204 help 2205 Using 64kB page size will result in higher performance kernel at 2206 the price of higher memory consumption. This option is available on 2207 all non-R3000 family processor. Not that at the time of this 2208 writing this option is still high experimental. 2209 2210endchoice 2211 2212config FORCE_MAX_ZONEORDER 2213 int "Maximum zone order" 2214 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2215 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2216 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2217 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2218 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2219 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2220 range 11 64 2221 default "11" 2222 help 2223 The kernel memory allocator divides physically contiguous memory 2224 blocks into "zones", where each zone is a power of two number of 2225 pages. This option selects the largest power of two that the kernel 2226 keeps in the memory allocator. If you need to allocate very large 2227 blocks of physically contiguous memory, then you may need to 2228 increase this value. 2229 2230 This config option is actually maximum order plus one. For example, 2231 a value of 11 means that the largest free memory block is 2^10 pages. 2232 2233 The page size is not necessarily 4KB. Keep this in mind 2234 when choosing a value for this option. 2235 2236config BOARD_SCACHE 2237 bool 2238 2239config IP22_CPU_SCACHE 2240 bool 2241 select BOARD_SCACHE 2242 2243# 2244# Support for a MIPS32 / MIPS64 style S-caches 2245# 2246config MIPS_CPU_SCACHE 2247 bool 2248 select BOARD_SCACHE 2249 2250config R5000_CPU_SCACHE 2251 bool 2252 select BOARD_SCACHE 2253 2254config RM7000_CPU_SCACHE 2255 bool 2256 select BOARD_SCACHE 2257 2258config SIBYTE_DMA_PAGEOPS 2259 bool "Use DMA to clear/copy pages" 2260 depends on CPU_SB1 2261 help 2262 Instead of using the CPU to zero and copy pages, use a Data Mover 2263 channel. These DMA channels are otherwise unused by the standard 2264 SiByte Linux port. Seems to give a small performance benefit. 2265 2266config CPU_HAS_PREFETCH 2267 bool 2268 2269config CPU_GENERIC_DUMP_TLB 2270 bool 2271 default y if !(CPU_R3000 || CPU_TX39XX) 2272 2273config MIPS_FP_SUPPORT 2274 bool "Floating Point support" if EXPERT 2275 default y 2276 help 2277 Select y to include support for floating point in the kernel 2278 including initialization of FPU hardware, FP context save & restore 2279 and emulation of an FPU where necessary. Without this support any 2280 userland program attempting to use floating point instructions will 2281 receive a SIGILL. 2282 2283 If you know that your userland will not attempt to use floating point 2284 instructions then you can say n here to shrink the kernel a little. 2285 2286 If unsure, say y. 2287 2288config CPU_R2300_FPU 2289 bool 2290 depends on MIPS_FP_SUPPORT 2291 default y if CPU_R3000 || CPU_TX39XX 2292 2293config CPU_R3K_TLB 2294 bool 2295 2296config CPU_R4K_FPU 2297 bool 2298 depends on MIPS_FP_SUPPORT 2299 default y if !CPU_R2300_FPU 2300 2301config CPU_R4K_CACHE_TLB 2302 bool 2303 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2304 2305config MIPS_MT_SMP 2306 bool "MIPS MT SMP support (1 TC on each available VPE)" 2307 default y 2308 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2309 select CPU_MIPSR2_IRQ_VI 2310 select CPU_MIPSR2_IRQ_EI 2311 select SYNC_R4K 2312 select MIPS_MT 2313 select SMP 2314 select SMP_UP 2315 select SYS_SUPPORTS_SMP 2316 select SYS_SUPPORTS_SCHED_SMT 2317 select MIPS_PERF_SHARED_TC_COUNTERS 2318 help 2319 This is a kernel model which is known as SMVP. This is supported 2320 on cores with the MT ASE and uses the available VPEs to implement 2321 virtual processors which supports SMP. This is equivalent to the 2322 Intel Hyperthreading feature. For further information go to 2323 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2324 2325config MIPS_MT 2326 bool 2327 2328config SCHED_SMT 2329 bool "SMT (multithreading) scheduler support" 2330 depends on SYS_SUPPORTS_SCHED_SMT 2331 default n 2332 help 2333 SMT scheduler support improves the CPU scheduler's decision making 2334 when dealing with MIPS MT enabled cores at a cost of slightly 2335 increased overhead in some places. If unsure say N here. 2336 2337config SYS_SUPPORTS_SCHED_SMT 2338 bool 2339 2340config SYS_SUPPORTS_MULTITHREADING 2341 bool 2342 2343config MIPS_MT_FPAFF 2344 bool "Dynamic FPU affinity for FP-intensive threads" 2345 default y 2346 depends on MIPS_MT_SMP 2347 2348config MIPSR2_TO_R6_EMULATOR 2349 bool "MIPS R2-to-R6 emulator" 2350 depends on CPU_MIPSR6 2351 depends on MIPS_FP_SUPPORT 2352 default y 2353 help 2354 Choose this option if you want to run non-R6 MIPS userland code. 2355 Even if you say 'Y' here, the emulator will still be disabled by 2356 default. You can enable it using the 'mipsr2emu' kernel option. 2357 The only reason this is a build-time option is to save ~14K from the 2358 final kernel image. 2359 2360config SYS_SUPPORTS_VPE_LOADER 2361 bool 2362 depends on SYS_SUPPORTS_MULTITHREADING 2363 help 2364 Indicates that the platform supports the VPE loader, and provides 2365 physical_memsize. 2366 2367config MIPS_VPE_LOADER 2368 bool "VPE loader support." 2369 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2370 select CPU_MIPSR2_IRQ_VI 2371 select CPU_MIPSR2_IRQ_EI 2372 select MIPS_MT 2373 help 2374 Includes a loader for loading an elf relocatable object 2375 onto another VPE and running it. 2376 2377config MIPS_VPE_LOADER_CMP 2378 bool 2379 default "y" 2380 depends on MIPS_VPE_LOADER && MIPS_CMP 2381 2382config MIPS_VPE_LOADER_MT 2383 bool 2384 default "y" 2385 depends on MIPS_VPE_LOADER && !MIPS_CMP 2386 2387config MIPS_VPE_LOADER_TOM 2388 bool "Load VPE program into memory hidden from linux" 2389 depends on MIPS_VPE_LOADER 2390 default y 2391 help 2392 The loader can use memory that is present but has been hidden from 2393 Linux using the kernel command line option "mem=xxMB". It's up to 2394 you to ensure the amount you put in the option and the space your 2395 program requires is less or equal to the amount physically present. 2396 2397config MIPS_VPE_APSP_API 2398 bool "Enable support for AP/SP API (RTLX)" 2399 depends on MIPS_VPE_LOADER 2400 2401config MIPS_VPE_APSP_API_CMP 2402 bool 2403 default "y" 2404 depends on MIPS_VPE_APSP_API && MIPS_CMP 2405 2406config MIPS_VPE_APSP_API_MT 2407 bool 2408 default "y" 2409 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2410 2411config MIPS_CMP 2412 bool "MIPS CMP framework support (DEPRECATED)" 2413 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2414 select SMP 2415 select SYNC_R4K 2416 select SYS_SUPPORTS_SMP 2417 select WEAK_ORDERING 2418 default n 2419 help 2420 Select this if you are using a bootloader which implements the "CMP 2421 framework" protocol (ie. YAMON) and want your kernel to make use of 2422 its ability to start secondary CPUs. 2423 2424 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2425 instead of this. 2426 2427config MIPS_CPS 2428 bool "MIPS Coherent Processing System support" 2429 depends on SYS_SUPPORTS_MIPS_CPS 2430 select MIPS_CM 2431 select MIPS_CPS_PM if HOTPLUG_CPU 2432 select SMP 2433 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2434 select SYS_SUPPORTS_HOTPLUG_CPU 2435 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2436 select SYS_SUPPORTS_SMP 2437 select WEAK_ORDERING 2438 help 2439 Select this if you wish to run an SMP kernel across multiple cores 2440 within a MIPS Coherent Processing System. When this option is 2441 enabled the kernel will probe for other cores and boot them with 2442 no external assistance. It is safe to enable this when hardware 2443 support is unavailable. 2444 2445config MIPS_CPS_PM 2446 depends on MIPS_CPS 2447 bool 2448 2449config MIPS_CM 2450 bool 2451 select MIPS_CPC 2452 2453config MIPS_CPC 2454 bool 2455 2456config SB1_PASS_2_WORKAROUNDS 2457 bool 2458 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2459 default y 2460 2461config SB1_PASS_2_1_WORKAROUNDS 2462 bool 2463 depends on CPU_SB1 && CPU_SB1_PASS_2 2464 default y 2465 2466choice 2467 prompt "SmartMIPS or microMIPS ASE support" 2468 2469config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2470 bool "None" 2471 help 2472 Select this if you want neither microMIPS nor SmartMIPS support 2473 2474config CPU_HAS_SMARTMIPS 2475 depends on SYS_SUPPORTS_SMARTMIPS 2476 bool "SmartMIPS" 2477 help 2478 SmartMIPS is a extension of the MIPS32 architecture aimed at 2479 increased security at both hardware and software level for 2480 smartcards. Enabling this option will allow proper use of the 2481 SmartMIPS instructions by Linux applications. However a kernel with 2482 this option will not work on a MIPS core without SmartMIPS core. If 2483 you don't know you probably don't have SmartMIPS and should say N 2484 here. 2485 2486config CPU_MICROMIPS 2487 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2488 bool "microMIPS" 2489 help 2490 When this option is enabled the kernel will be built using the 2491 microMIPS ISA 2492 2493endchoice 2494 2495config CPU_HAS_MSA 2496 bool "Support for the MIPS SIMD Architecture" 2497 depends on CPU_SUPPORTS_MSA 2498 depends on MIPS_FP_SUPPORT 2499 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2500 help 2501 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2502 and a set of SIMD instructions to operate on them. When this option 2503 is enabled the kernel will support allocating & switching MSA 2504 vector register contexts. If you know that your kernel will only be 2505 running on CPUs which do not support MSA or that your userland will 2506 not be making use of it then you may wish to say N here to reduce 2507 the size & complexity of your kernel. 2508 2509 If unsure, say Y. 2510 2511config CPU_HAS_WB 2512 bool 2513 2514config XKS01 2515 bool 2516 2517config CPU_HAS_RIXI 2518 bool 2519 2520config CPU_HAS_LOAD_STORE_LR 2521 bool 2522 help 2523 CPU has support for unaligned load and store instructions: 2524 LWL, LWR, SWL, SWR (Load/store word left/right). 2525 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2526 2527# 2528# Vectored interrupt mode is an R2 feature 2529# 2530config CPU_MIPSR2_IRQ_VI 2531 bool 2532 2533# 2534# Extended interrupt mode is an R2 feature 2535# 2536config CPU_MIPSR2_IRQ_EI 2537 bool 2538 2539config CPU_HAS_SYNC 2540 bool 2541 depends on !CPU_R3000 2542 default y 2543 2544# 2545# CPU non-features 2546# 2547config CPU_DADDI_WORKAROUNDS 2548 bool 2549 2550config CPU_R4000_WORKAROUNDS 2551 bool 2552 select CPU_R4400_WORKAROUNDS 2553 2554config CPU_R4400_WORKAROUNDS 2555 bool 2556 2557config MIPS_ASID_SHIFT 2558 int 2559 default 6 if CPU_R3000 || CPU_TX39XX 2560 default 0 2561 2562config MIPS_ASID_BITS 2563 int 2564 default 0 if MIPS_ASID_BITS_VARIABLE 2565 default 6 if CPU_R3000 || CPU_TX39XX 2566 default 8 2567 2568config MIPS_ASID_BITS_VARIABLE 2569 bool 2570 2571config MIPS_CRC_SUPPORT 2572 bool 2573 2574# 2575# - Highmem only makes sense for the 32-bit kernel. 2576# - The current highmem code will only work properly on physically indexed 2577# caches such as R3000, SB1, R7000 or those that look like they're virtually 2578# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2579# moment we protect the user and offer the highmem option only on machines 2580# where it's known to be safe. This will not offer highmem on a few systems 2581# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2582# indexed CPUs but we're playing safe. 2583# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2584# know they might have memory configurations that could make use of highmem 2585# support. 2586# 2587config HIGHMEM 2588 bool "High Memory Support" 2589 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2590 2591config CPU_SUPPORTS_HIGHMEM 2592 bool 2593 2594config SYS_SUPPORTS_HIGHMEM 2595 bool 2596 2597config SYS_SUPPORTS_SMARTMIPS 2598 bool 2599 2600config SYS_SUPPORTS_MICROMIPS 2601 bool 2602 2603config SYS_SUPPORTS_MIPS16 2604 bool 2605 help 2606 This option must be set if a kernel might be executed on a MIPS16- 2607 enabled CPU even if MIPS16 is not actually being used. In other 2608 words, it makes the kernel MIPS16-tolerant. 2609 2610config CPU_SUPPORTS_MSA 2611 bool 2612 2613config ARCH_FLATMEM_ENABLE 2614 def_bool y 2615 depends on !NUMA && !CPU_LOONGSON2 2616 2617config ARCH_DISCONTIGMEM_ENABLE 2618 bool 2619 default y if SGI_IP27 2620 help 2621 Say Y to support efficient handling of discontiguous physical memory, 2622 for architectures which are either NUMA (Non-Uniform Memory Access) 2623 or have huge holes in the physical address space for other reasons. 2624 See <file:Documentation/vm/numa.rst> for more. 2625 2626config ARCH_SPARSEMEM_ENABLE 2627 bool 2628 select SPARSEMEM_STATIC 2629 2630config NUMA 2631 bool "NUMA Support" 2632 depends on SYS_SUPPORTS_NUMA 2633 help 2634 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2635 Access). This option improves performance on systems with more 2636 than two nodes; on two node systems it is generally better to 2637 leave it disabled; on single node systems disable this option 2638 disabled. 2639 2640config SYS_SUPPORTS_NUMA 2641 bool 2642 2643config RELOCATABLE 2644 bool "Relocatable kernel" 2645 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2646 help 2647 This builds a kernel image that retains relocation information 2648 so it can be loaded someplace besides the default 1MB. 2649 The relocations make the kernel binary about 15% larger, 2650 but are discarded at runtime 2651 2652config RELOCATION_TABLE_SIZE 2653 hex "Relocation table size" 2654 depends on RELOCATABLE 2655 range 0x0 0x01000000 2656 default "0x00100000" 2657 ---help--- 2658 A table of relocation data will be appended to the kernel binary 2659 and parsed at boot to fix up the relocated kernel. 2660 2661 This option allows the amount of space reserved for the table to be 2662 adjusted, although the default of 1Mb should be ok in most cases. 2663 2664 The build will fail and a valid size suggested if this is too small. 2665 2666 If unsure, leave at the default value. 2667 2668config RANDOMIZE_BASE 2669 bool "Randomize the address of the kernel image" 2670 depends on RELOCATABLE 2671 ---help--- 2672 Randomizes the physical and virtual address at which the 2673 kernel image is loaded, as a security feature that 2674 deters exploit attempts relying on knowledge of the location 2675 of kernel internals. 2676 2677 Entropy is generated using any coprocessor 0 registers available. 2678 2679 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2680 2681 If unsure, say N. 2682 2683config RANDOMIZE_BASE_MAX_OFFSET 2684 hex "Maximum kASLR offset" if EXPERT 2685 depends on RANDOMIZE_BASE 2686 range 0x0 0x40000000 if EVA || 64BIT 2687 range 0x0 0x08000000 2688 default "0x01000000" 2689 ---help--- 2690 When kASLR is active, this provides the maximum offset that will 2691 be applied to the kernel image. It should be set according to the 2692 amount of physical RAM available in the target system minus 2693 PHYSICAL_START and must be a power of 2. 2694 2695 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2696 EVA or 64-bit. The default is 16Mb. 2697 2698config NODES_SHIFT 2699 int 2700 default "6" 2701 depends on NEED_MULTIPLE_NODES 2702 2703config HW_PERF_EVENTS 2704 bool "Enable hardware performance counter support for perf events" 2705 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2706 default y 2707 help 2708 Enable hardware performance counter support for perf events. If 2709 disabled, perf events will use software events only. 2710 2711config SMP 2712 bool "Multi-Processing support" 2713 depends on SYS_SUPPORTS_SMP 2714 help 2715 This enables support for systems with more than one CPU. If you have 2716 a system with only one CPU, say N. If you have a system with more 2717 than one CPU, say Y. 2718 2719 If you say N here, the kernel will run on uni- and multiprocessor 2720 machines, but will use only one CPU of a multiprocessor machine. If 2721 you say Y here, the kernel will run on many, but not all, 2722 uniprocessor machines. On a uniprocessor machine, the kernel 2723 will run faster if you say N here. 2724 2725 People using multiprocessor machines who say Y here should also say 2726 Y to "Enhanced Real Time Clock Support", below. 2727 2728 See also the SMP-HOWTO available at 2729 <http://www.tldp.org/docs.html#howto>. 2730 2731 If you don't know what to do here, say N. 2732 2733config HOTPLUG_CPU 2734 bool "Support for hot-pluggable CPUs" 2735 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2736 help 2737 Say Y here to allow turning CPUs off and on. CPUs can be 2738 controlled through /sys/devices/system/cpu. 2739 (Note: power management support will enable this option 2740 automatically on SMP systems. ) 2741 Say N if you want to disable CPU hotplug. 2742 2743config SMP_UP 2744 bool 2745 2746config SYS_SUPPORTS_MIPS_CMP 2747 bool 2748 2749config SYS_SUPPORTS_MIPS_CPS 2750 bool 2751 2752config SYS_SUPPORTS_SMP 2753 bool 2754 2755config NR_CPUS_DEFAULT_4 2756 bool 2757 2758config NR_CPUS_DEFAULT_8 2759 bool 2760 2761config NR_CPUS_DEFAULT_16 2762 bool 2763 2764config NR_CPUS_DEFAULT_32 2765 bool 2766 2767config NR_CPUS_DEFAULT_64 2768 bool 2769 2770config NR_CPUS 2771 int "Maximum number of CPUs (2-256)" 2772 range 2 256 2773 depends on SMP 2774 default "4" if NR_CPUS_DEFAULT_4 2775 default "8" if NR_CPUS_DEFAULT_8 2776 default "16" if NR_CPUS_DEFAULT_16 2777 default "32" if NR_CPUS_DEFAULT_32 2778 default "64" if NR_CPUS_DEFAULT_64 2779 help 2780 This allows you to specify the maximum number of CPUs which this 2781 kernel will support. The maximum supported value is 32 for 32-bit 2782 kernel and 64 for 64-bit kernels; the minimum value which makes 2783 sense is 1 for Qemu (useful only for kernel debugging purposes) 2784 and 2 for all others. 2785 2786 This is purely to save memory - each supported CPU adds 2787 approximately eight kilobytes to the kernel image. For best 2788 performance should round up your number of processors to the next 2789 power of two. 2790 2791config MIPS_PERF_SHARED_TC_COUNTERS 2792 bool 2793 2794config MIPS_NR_CPU_NR_MAP_1024 2795 bool 2796 2797config MIPS_NR_CPU_NR_MAP 2798 int 2799 depends on SMP 2800 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2801 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2802 2803# 2804# Timer Interrupt Frequency Configuration 2805# 2806 2807choice 2808 prompt "Timer frequency" 2809 default HZ_250 2810 help 2811 Allows the configuration of the timer frequency. 2812 2813 config HZ_24 2814 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2815 2816 config HZ_48 2817 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2818 2819 config HZ_100 2820 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2821 2822 config HZ_128 2823 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2824 2825 config HZ_250 2826 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2827 2828 config HZ_256 2829 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2830 2831 config HZ_1000 2832 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2833 2834 config HZ_1024 2835 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2836 2837endchoice 2838 2839config SYS_SUPPORTS_24HZ 2840 bool 2841 2842config SYS_SUPPORTS_48HZ 2843 bool 2844 2845config SYS_SUPPORTS_100HZ 2846 bool 2847 2848config SYS_SUPPORTS_128HZ 2849 bool 2850 2851config SYS_SUPPORTS_250HZ 2852 bool 2853 2854config SYS_SUPPORTS_256HZ 2855 bool 2856 2857config SYS_SUPPORTS_1000HZ 2858 bool 2859 2860config SYS_SUPPORTS_1024HZ 2861 bool 2862 2863config SYS_SUPPORTS_ARBIT_HZ 2864 bool 2865 default y if !SYS_SUPPORTS_24HZ && \ 2866 !SYS_SUPPORTS_48HZ && \ 2867 !SYS_SUPPORTS_100HZ && \ 2868 !SYS_SUPPORTS_128HZ && \ 2869 !SYS_SUPPORTS_250HZ && \ 2870 !SYS_SUPPORTS_256HZ && \ 2871 !SYS_SUPPORTS_1000HZ && \ 2872 !SYS_SUPPORTS_1024HZ 2873 2874config HZ 2875 int 2876 default 24 if HZ_24 2877 default 48 if HZ_48 2878 default 100 if HZ_100 2879 default 128 if HZ_128 2880 default 250 if HZ_250 2881 default 256 if HZ_256 2882 default 1000 if HZ_1000 2883 default 1024 if HZ_1024 2884 2885config SCHED_HRTICK 2886 def_bool HIGH_RES_TIMERS 2887 2888config KEXEC 2889 bool "Kexec system call" 2890 select KEXEC_CORE 2891 help 2892 kexec is a system call that implements the ability to shutdown your 2893 current kernel, and to start another kernel. It is like a reboot 2894 but it is independent of the system firmware. And like a reboot 2895 you can start any kernel with it, not just Linux. 2896 2897 The name comes from the similarity to the exec system call. 2898 2899 It is an ongoing process to be certain the hardware in a machine 2900 is properly shutdown, so do not be surprised if this code does not 2901 initially work for you. As of this writing the exact hardware 2902 interface is strongly in flux, so no good recommendation can be 2903 made. 2904 2905config CRASH_DUMP 2906 bool "Kernel crash dumps" 2907 help 2908 Generate crash dump after being started by kexec. 2909 This should be normally only set in special crash dump kernels 2910 which are loaded in the main kernel with kexec-tools into 2911 a specially reserved region and then later executed after 2912 a crash by kdump/kexec. The crash dump kernel must be compiled 2913 to a memory address not used by the main kernel or firmware using 2914 PHYSICAL_START. 2915 2916config PHYSICAL_START 2917 hex "Physical address where the kernel is loaded" 2918 default "0xffffffff84000000" 2919 depends on CRASH_DUMP 2920 help 2921 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2922 If you plan to use kernel for capturing the crash dump change 2923 this value to start of the reserved region (the "X" value as 2924 specified in the "crashkernel=YM@XM" command line boot parameter 2925 passed to the panic-ed kernel). 2926 2927config SECCOMP 2928 bool "Enable seccomp to safely compute untrusted bytecode" 2929 depends on PROC_FS 2930 default y 2931 help 2932 This kernel feature is useful for number crunching applications 2933 that may need to compute untrusted bytecode during their 2934 execution. By using pipes or other transports made available to 2935 the process as file descriptors supporting the read/write 2936 syscalls, it's possible to isolate those applications in 2937 their own address space using seccomp. Once seccomp is 2938 enabled via /proc/<pid>/seccomp, it cannot be disabled 2939 and the task is only allowed to execute a few safe syscalls 2940 defined by each seccomp mode. 2941 2942 If unsure, say Y. Only embedded should say N here. 2943 2944config MIPS_O32_FP64_SUPPORT 2945 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2946 depends on 32BIT || MIPS32_O32 2947 help 2948 When this is enabled, the kernel will support use of 64-bit floating 2949 point registers with binaries using the O32 ABI along with the 2950 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2951 32-bit MIPS systems this support is at the cost of increasing the 2952 size and complexity of the compiled FPU emulator. Thus if you are 2953 running a MIPS32 system and know that none of your userland binaries 2954 will require 64-bit floating point, you may wish to reduce the size 2955 of your kernel & potentially improve FP emulation performance by 2956 saying N here. 2957 2958 Although binutils currently supports use of this flag the details 2959 concerning its effect upon the O32 ABI in userland are still being 2960 worked on. In order to avoid userland becoming dependant upon current 2961 behaviour before the details have been finalised, this option should 2962 be considered experimental and only enabled by those working upon 2963 said details. 2964 2965 If unsure, say N. 2966 2967config USE_OF 2968 bool 2969 select OF 2970 select OF_EARLY_FLATTREE 2971 select IRQ_DOMAIN 2972 2973config UHI_BOOT 2974 bool 2975 2976config BUILTIN_DTB 2977 bool 2978 2979choice 2980 prompt "Kernel appended dtb support" if USE_OF 2981 default MIPS_NO_APPENDED_DTB 2982 2983 config MIPS_NO_APPENDED_DTB 2984 bool "None" 2985 help 2986 Do not enable appended dtb support. 2987 2988 config MIPS_ELF_APPENDED_DTB 2989 bool "vmlinux" 2990 help 2991 With this option, the boot code will look for a device tree binary 2992 DTB) included in the vmlinux ELF section .appended_dtb. By default 2993 it is empty and the DTB can be appended using binutils command 2994 objcopy: 2995 2996 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2997 2998 This is meant as a backward compatiblity convenience for those 2999 systems with a bootloader that can't be upgraded to accommodate 3000 the documented boot protocol using a device tree. 3001 3002 config MIPS_RAW_APPENDED_DTB 3003 bool "vmlinux.bin or vmlinuz.bin" 3004 help 3005 With this option, the boot code will look for a device tree binary 3006 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3007 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3008 3009 This is meant as a backward compatibility convenience for those 3010 systems with a bootloader that can't be upgraded to accommodate 3011 the documented boot protocol using a device tree. 3012 3013 Beware that there is very little in terms of protection against 3014 this option being confused by leftover garbage in memory that might 3015 look like a DTB header after a reboot if no actual DTB is appended 3016 to vmlinux.bin. Do not leave this option active in a production kernel 3017 if you don't intend to always append a DTB. 3018endchoice 3019 3020choice 3021 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3022 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3023 !MIPS_MALTA && \ 3024 !CAVIUM_OCTEON_SOC 3025 default MIPS_CMDLINE_FROM_BOOTLOADER 3026 3027 config MIPS_CMDLINE_FROM_DTB 3028 depends on USE_OF 3029 bool "Dtb kernel arguments if available" 3030 3031 config MIPS_CMDLINE_DTB_EXTEND 3032 depends on USE_OF 3033 bool "Extend dtb kernel arguments with bootloader arguments" 3034 3035 config MIPS_CMDLINE_FROM_BOOTLOADER 3036 bool "Bootloader kernel arguments if available" 3037 3038 config MIPS_CMDLINE_BUILTIN_EXTEND 3039 depends on CMDLINE_BOOL 3040 bool "Extend builtin kernel arguments with bootloader arguments" 3041endchoice 3042 3043endmenu 3044 3045config LOCKDEP_SUPPORT 3046 bool 3047 default y 3048 3049config STACKTRACE_SUPPORT 3050 bool 3051 default y 3052 3053config PGTABLE_LEVELS 3054 int 3055 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3056 default 3 if 64BIT && !PAGE_SIZE_64KB 3057 default 2 3058 3059config MIPS_AUTO_PFN_OFFSET 3060 bool 3061 3062menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3063 3064config PCI_DRIVERS_GENERIC 3065 select PCI_DOMAINS_GENERIC if PCI 3066 bool 3067 3068config PCI_DRIVERS_LEGACY 3069 def_bool !PCI_DRIVERS_GENERIC 3070 select NO_GENERIC_PCI_IOPORT_MAP 3071 select PCI_DOMAINS if PCI 3072 3073# 3074# ISA support is now enabled via select. Too many systems still have the one 3075# or other ISA chip on the board that users don't know about so don't expect 3076# users to choose the right thing ... 3077# 3078config ISA 3079 bool 3080 3081config TC 3082 bool "TURBOchannel support" 3083 depends on MACH_DECSTATION 3084 help 3085 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3086 processors. TURBOchannel programming specifications are available 3087 at: 3088 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3089 and: 3090 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3091 Linux driver support status is documented at: 3092 <http://www.linux-mips.org/wiki/DECstation> 3093 3094config MMU 3095 bool 3096 default y 3097 3098config ARCH_MMAP_RND_BITS_MIN 3099 default 12 if 64BIT 3100 default 8 3101 3102config ARCH_MMAP_RND_BITS_MAX 3103 default 18 if 64BIT 3104 default 15 3105 3106config ARCH_MMAP_RND_COMPAT_BITS_MIN 3107 default 8 3108 3109config ARCH_MMAP_RND_COMPAT_BITS_MAX 3110 default 15 3111 3112config I8253 3113 bool 3114 select CLKSRC_I8253 3115 select CLKEVT_I8253 3116 select MIPS_EXTERNAL_TIMER 3117 3118config ZONE_DMA 3119 bool 3120 3121config ZONE_DMA32 3122 bool 3123 3124endmenu 3125 3126config TRAD_SIGNALS 3127 bool 3128 3129config MIPS32_COMPAT 3130 bool 3131 3132config COMPAT 3133 bool 3134 3135config SYSVIPC_COMPAT 3136 bool 3137 3138config MIPS32_O32 3139 bool "Kernel support for o32 binaries" 3140 depends on 64BIT 3141 select ARCH_WANT_OLD_COMPAT_IPC 3142 select COMPAT 3143 select MIPS32_COMPAT 3144 select SYSVIPC_COMPAT if SYSVIPC 3145 help 3146 Select this option if you want to run o32 binaries. These are pure 3147 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3148 existing binaries are in this format. 3149 3150 If unsure, say Y. 3151 3152config MIPS32_N32 3153 bool "Kernel support for n32 binaries" 3154 depends on 64BIT 3155 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3156 select COMPAT 3157 select MIPS32_COMPAT 3158 select SYSVIPC_COMPAT if SYSVIPC 3159 help 3160 Select this option if you want to run n32 binaries. These are 3161 64-bit binaries using 32-bit quantities for addressing and certain 3162 data that would normally be 64-bit. They are used in special 3163 cases. 3164 3165 If unsure, say N. 3166 3167config BINFMT_ELF32 3168 bool 3169 default y if MIPS32_O32 || MIPS32_N32 3170 select ELFCORE 3171 3172menu "Power management options" 3173 3174config ARCH_HIBERNATION_POSSIBLE 3175 def_bool y 3176 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3177 3178config ARCH_SUSPEND_POSSIBLE 3179 def_bool y 3180 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3181 3182source "kernel/power/Kconfig" 3183 3184endmenu 3185 3186config MIPS_EXTERNAL_TIMER 3187 bool 3188 3189menu "CPU Power Management" 3190 3191if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3192source "drivers/cpufreq/Kconfig" 3193endif 3194 3195source "drivers/cpuidle/Kconfig" 3196 3197endmenu 3198 3199source "drivers/firmware/Kconfig" 3200 3201source "arch/mips/kvm/Kconfig" 3202