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_IOMAP 26 select GENERIC_IRQ_PROBE 27 select GENERIC_IRQ_SHOW 28 select GENERIC_ISA_DMA if EISA 29 select GENERIC_LIB_ASHLDI3 30 select GENERIC_LIB_ASHRDI3 31 select GENERIC_LIB_CMPDI2 32 select GENERIC_LIB_LSHRDI3 33 select GENERIC_LIB_UCMPDI2 34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 35 select GENERIC_SMP_IDLE_THREAD 36 select GENERIC_TIME_VSYSCALL 37 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 38 select HANDLE_DOMAIN_IRQ 39 select HAVE_ARCH_COMPILER_H 40 select HAVE_ARCH_JUMP_LABEL 41 select HAVE_ARCH_KGDB 42 select HAVE_ARCH_MMAP_RND_BITS if MMU 43 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 44 select HAVE_ARCH_SECCOMP_FILTER 45 select HAVE_ARCH_TRACEHOOK 46 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 47 select HAVE_EBPF_JIT if (!CPU_MICROMIPS) 48 select HAVE_CONTEXT_TRACKING 49 select HAVE_COPY_THREAD_TLS 50 select HAVE_C_RECORDMCOUNT 51 select HAVE_DEBUG_KMEMLEAK 52 select HAVE_DEBUG_STACKOVERFLOW 53 select HAVE_DMA_CONTIGUOUS 54 select HAVE_DYNAMIC_FTRACE 55 select HAVE_EXIT_THREAD 56 select HAVE_FAST_GUP 57 select HAVE_FTRACE_MCOUNT_RECORD 58 select HAVE_FUNCTION_GRAPH_TRACER 59 select HAVE_FUNCTION_TRACER 60 select HAVE_IDE 61 select HAVE_IOREMAP_PROT 62 select HAVE_IRQ_EXIT_ON_IRQ_STACK 63 select HAVE_IRQ_TIME_ACCOUNTING 64 select HAVE_KPROBES 65 select HAVE_KRETPROBES 66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 67 select HAVE_MEMBLOCK_NODE_MAP 68 select HAVE_MOD_ARCH_SPECIFIC 69 select HAVE_NMI 70 select HAVE_OPROFILE 71 select HAVE_PERF_EVENTS 72 select HAVE_REGS_AND_STACK_ACCESS_API 73 select HAVE_RSEQ 74 select HAVE_STACKPROTECTOR 75 select HAVE_SYSCALL_TRACEPOINTS 76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 77 select IRQ_FORCED_THREADING 78 select ISA if EISA 79 select MODULES_USE_ELF_RELA if MODULES && 64BIT 80 select MODULES_USE_ELF_REL if MODULES 81 select PERF_USE_VMALLOC 82 select RTC_LIB 83 select SYSCTL_EXCEPTION_TRACE 84 select VIRT_TO_BUS 85 86menu "Machine selection" 87 88choice 89 prompt "System type" 90 default MIPS_GENERIC 91 92config MIPS_GENERIC 93 bool "Generic board-agnostic MIPS kernel" 94 select BOOT_RAW 95 select BUILTIN_DTB 96 select CEVT_R4K 97 select CLKSRC_MIPS_GIC 98 select COMMON_CLK 99 select CPU_MIPSR2_IRQ_VI 100 select CPU_MIPSR2_IRQ_EI 101 select CSRC_R4K 102 select DMA_PERDEV_COHERENT 103 select HAVE_PCI 104 select IRQ_MIPS_CPU 105 select LIBFDT 106 select MIPS_AUTO_PFN_OFFSET 107 select MIPS_CPU_SCACHE 108 select MIPS_GIC 109 select MIPS_L1_CACHE_SHIFT_7 110 select NO_EXCEPT_FILL 111 select PCI_DRIVERS_GENERIC 112 select PINCTRL 113 select SMP_UP if SMP 114 select SWAP_IO_SPACE 115 select SYS_HAS_CPU_MIPS32_R1 116 select SYS_HAS_CPU_MIPS32_R2 117 select SYS_HAS_CPU_MIPS32_R6 118 select SYS_HAS_CPU_MIPS64_R1 119 select SYS_HAS_CPU_MIPS64_R2 120 select SYS_HAS_CPU_MIPS64_R6 121 select SYS_SUPPORTS_32BIT_KERNEL 122 select SYS_SUPPORTS_64BIT_KERNEL 123 select SYS_SUPPORTS_BIG_ENDIAN 124 select SYS_SUPPORTS_HIGHMEM 125 select SYS_SUPPORTS_LITTLE_ENDIAN 126 select SYS_SUPPORTS_MICROMIPS 127 select SYS_SUPPORTS_MIPS_CPS 128 select SYS_SUPPORTS_MIPS16 129 select SYS_SUPPORTS_MULTITHREADING 130 select SYS_SUPPORTS_RELOCATABLE 131 select SYS_SUPPORTS_SMARTMIPS 132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 138 select USE_OF 139 select UHI_BOOT 140 help 141 Select this to build a kernel which aims to support multiple boards, 142 generally using a flattened device tree passed from the bootloader 143 using the boot protocol defined in the UHI (Unified Hosting 144 Interface) specification. 145 146config MIPS_ALCHEMY 147 bool "Alchemy processor based machines" 148 select PHYS_ADDR_T_64BIT 149 select CEVT_R4K 150 select CSRC_R4K 151 select IRQ_MIPS_CPU 152 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 153 select SYS_HAS_CPU_MIPS32_R1 154 select SYS_SUPPORTS_32BIT_KERNEL 155 select SYS_SUPPORTS_APM_EMULATION 156 select GPIOLIB 157 select SYS_SUPPORTS_ZBOOT 158 select COMMON_CLK 159 160config AR7 161 bool "Texas Instruments AR7" 162 select BOOT_ELF32 163 select DMA_NONCOHERENT 164 select CEVT_R4K 165 select CSRC_R4K 166 select IRQ_MIPS_CPU 167 select NO_EXCEPT_FILL 168 select SWAP_IO_SPACE 169 select SYS_HAS_CPU_MIPS32_R1 170 select SYS_HAS_EARLY_PRINTK 171 select SYS_SUPPORTS_32BIT_KERNEL 172 select SYS_SUPPORTS_LITTLE_ENDIAN 173 select SYS_SUPPORTS_MIPS16 174 select SYS_SUPPORTS_ZBOOT_UART16550 175 select GPIOLIB 176 select VLYNQ 177 select HAVE_CLK 178 help 179 Support for the Texas Instruments AR7 System-on-a-Chip 180 family: TNETD7100, 7200 and 7300. 181 182config ATH25 183 bool "Atheros AR231x/AR531x SoC support" 184 select CEVT_R4K 185 select CSRC_R4K 186 select DMA_NONCOHERENT 187 select IRQ_MIPS_CPU 188 select IRQ_DOMAIN 189 select SYS_HAS_CPU_MIPS32_R1 190 select SYS_SUPPORTS_BIG_ENDIAN 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_HAS_EARLY_PRINTK 193 help 194 Support for Atheros AR231x and Atheros AR531x based boards 195 196config ATH79 197 bool "Atheros AR71XX/AR724X/AR913X based boards" 198 select ARCH_HAS_RESET_CONTROLLER 199 select BOOT_RAW 200 select CEVT_R4K 201 select CSRC_R4K 202 select DMA_NONCOHERENT 203 select GPIOLIB 204 select PINCTRL 205 select HAVE_CLK 206 select COMMON_CLK 207 select CLKDEV_LOOKUP 208 select IRQ_MIPS_CPU 209 select SYS_HAS_CPU_MIPS32_R2 210 select SYS_HAS_EARLY_PRINTK 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_BIG_ENDIAN 213 select SYS_SUPPORTS_MIPS16 214 select SYS_SUPPORTS_ZBOOT_UART_PROM 215 select USE_OF 216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 217 help 218 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 219 220config BMIPS_GENERIC 221 bool "Broadcom Generic BMIPS kernel" 222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 223 select ARCH_HAS_PHYS_TO_DMA 224 select BOOT_RAW 225 select NO_EXCEPT_FILL 226 select USE_OF 227 select CEVT_R4K 228 select CSRC_R4K 229 select SYNC_R4K 230 select COMMON_CLK 231 select BCM6345_L1_IRQ 232 select BCM7038_L1_IRQ 233 select BCM7120_L2_IRQ 234 select BRCMSTB_L2_IRQ 235 select IRQ_MIPS_CPU 236 select DMA_NONCOHERENT 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select SYS_SUPPORTS_BIG_ENDIAN 240 select SYS_SUPPORTS_HIGHMEM 241 select SYS_HAS_CPU_BMIPS32_3300 242 select SYS_HAS_CPU_BMIPS4350 243 select SYS_HAS_CPU_BMIPS4380 244 select SYS_HAS_CPU_BMIPS5000 245 select SWAP_IO_SPACE 246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 250 select HARDIRQS_SW_RESEND 251 help 252 Build a generic DT-based kernel image that boots on select 253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 255 must be set appropriately for your board. 256 257config BCM47XX 258 bool "Broadcom BCM47XX based boards" 259 select BOOT_RAW 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select HAVE_PCI 264 select IRQ_MIPS_CPU 265 select SYS_HAS_CPU_MIPS32_R1 266 select NO_EXCEPT_FILL 267 select SYS_SUPPORTS_32BIT_KERNEL 268 select SYS_SUPPORTS_LITTLE_ENDIAN 269 select SYS_SUPPORTS_MIPS16 270 select SYS_SUPPORTS_ZBOOT 271 select SYS_HAS_EARLY_PRINTK 272 select USE_GENERIC_EARLY_PRINTK_8250 273 select GPIOLIB 274 select LEDS_GPIO_REGISTER 275 select BCM47XX_NVRAM 276 select BCM47XX_SPROM 277 select BCM47XX_SSB if !BCM47XX_BCMA 278 help 279 Support for BCM47XX based boards 280 281config BCM63XX 282 bool "Broadcom BCM63XX based boards" 283 select BOOT_RAW 284 select CEVT_R4K 285 select CSRC_R4K 286 select SYNC_R4K 287 select DMA_NONCOHERENT 288 select IRQ_MIPS_CPU 289 select SYS_SUPPORTS_32BIT_KERNEL 290 select SYS_SUPPORTS_BIG_ENDIAN 291 select SYS_HAS_EARLY_PRINTK 292 select SWAP_IO_SPACE 293 select GPIOLIB 294 select HAVE_CLK 295 select MIPS_L1_CACHE_SHIFT_4 296 select CLKDEV_LOOKUP 297 help 298 Support for BCM63XX based boards 299 300config MIPS_COBALT 301 bool "Cobalt Server" 302 select CEVT_R4K 303 select CSRC_R4K 304 select CEVT_GT641XX 305 select DMA_NONCOHERENT 306 select FORCE_PCI 307 select I8253 308 select I8259 309 select IRQ_MIPS_CPU 310 select IRQ_GT641XX 311 select PCI_GT64XXX_PCI0 312 select SYS_HAS_CPU_NEVADA 313 select SYS_HAS_EARLY_PRINTK 314 select SYS_SUPPORTS_32BIT_KERNEL 315 select SYS_SUPPORTS_64BIT_KERNEL 316 select SYS_SUPPORTS_LITTLE_ENDIAN 317 select USE_GENERIC_EARLY_PRINTK_8250 318 319config MACH_DECSTATION 320 bool "DECstations" 321 select BOOT_ELF32 322 select CEVT_DS1287 323 select CEVT_R4K if CPU_R4X00 324 select CSRC_IOASIC 325 select CSRC_R4K if CPU_R4X00 326 select CPU_DADDI_WORKAROUNDS if 64BIT 327 select CPU_R4000_WORKAROUNDS if 64BIT 328 select CPU_R4400_WORKAROUNDS if 64BIT 329 select DMA_NONCOHERENT 330 select NO_IOPORT_MAP 331 select IRQ_MIPS_CPU 332 select SYS_HAS_CPU_R3000 333 select SYS_HAS_CPU_R4X00 334 select SYS_SUPPORTS_32BIT_KERNEL 335 select SYS_SUPPORTS_64BIT_KERNEL 336 select SYS_SUPPORTS_LITTLE_ENDIAN 337 select SYS_SUPPORTS_128HZ 338 select SYS_SUPPORTS_256HZ 339 select SYS_SUPPORTS_1024HZ 340 select MIPS_L1_CACHE_SHIFT_4 341 help 342 This enables support for DEC's MIPS based workstations. For details 343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 344 DECstation porting pages on <http://decstation.unix-ag.org/>. 345 346 If you have one of the following DECstation Models you definitely 347 want to choose R4xx0 for the CPU Type: 348 349 DECstation 5000/50 350 DECstation 5000/150 351 DECstation 5000/260 352 DECsystem 5900/260 353 354 otherwise choose R3000. 355 356config MACH_JAZZ 357 bool "Jazz family of machines" 358 select ARCH_MIGHT_HAVE_PC_PARPORT 359 select ARCH_MIGHT_HAVE_PC_SERIO 360 select FW_ARC 361 select FW_ARC32 362 select ARCH_MAY_HAVE_PC_FDC 363 select CEVT_R4K 364 select CSRC_R4K 365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 366 select GENERIC_ISA_DMA 367 select HAVE_PCSPKR_PLATFORM 368 select IRQ_MIPS_CPU 369 select I8253 370 select I8259 371 select ISA 372 select SYS_HAS_CPU_R4X00 373 select SYS_SUPPORTS_32BIT_KERNEL 374 select SYS_SUPPORTS_64BIT_KERNEL 375 select SYS_SUPPORTS_100HZ 376 help 377 This a family of machines based on the MIPS R4030 chipset which was 378 used by several vendors to build RISC/os and Windows NT workstations. 379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 380 Olivetti M700-10 workstations. 381 382config MACH_INGENIC 383 bool "Ingenic SoC based machines" 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_LITTLE_ENDIAN 386 select SYS_SUPPORTS_ZBOOT_UART16550 387 select DMA_NONCOHERENT 388 select IRQ_MIPS_CPU 389 select PINCTRL 390 select GPIOLIB 391 select COMMON_CLK 392 select GENERIC_IRQ_CHIP 393 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 394 select USE_OF 395 select LIBFDT 396 397config LANTIQ 398 bool "Lantiq based platforms" 399 select DMA_NONCOHERENT 400 select IRQ_MIPS_CPU 401 select CEVT_R4K 402 select CSRC_R4K 403 select SYS_HAS_CPU_MIPS32_R1 404 select SYS_HAS_CPU_MIPS32_R2 405 select SYS_SUPPORTS_BIG_ENDIAN 406 select SYS_SUPPORTS_32BIT_KERNEL 407 select SYS_SUPPORTS_MIPS16 408 select SYS_SUPPORTS_MULTITHREADING 409 select SYS_SUPPORTS_VPE_LOADER 410 select SYS_HAS_EARLY_PRINTK 411 select GPIOLIB 412 select SWAP_IO_SPACE 413 select BOOT_RAW 414 select CLKDEV_LOOKUP 415 select USE_OF 416 select PINCTRL 417 select PINCTRL_LANTIQ 418 select ARCH_HAS_RESET_CONTROLLER 419 select RESET_CONTROLLER 420 421config LASAT 422 bool "LASAT Networks platforms" 423 select CEVT_R4K 424 select CRC32 425 select CSRC_R4K 426 select DMA_NONCOHERENT 427 select SYS_HAS_EARLY_PRINTK 428 select HAVE_PCI 429 select IRQ_MIPS_CPU 430 select PCI_GT64XXX_PCI0 431 select MIPS_NILE4 432 select R5000_CPU_SCACHE 433 select SYS_HAS_CPU_R5000 434 select SYS_SUPPORTS_32BIT_KERNEL 435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 436 select SYS_SUPPORTS_LITTLE_ENDIAN 437 438config MACH_LOONGSON32 439 bool "Loongson-1 family of machines" 440 select SYS_SUPPORTS_ZBOOT 441 help 442 This enables support for the Loongson-1 family of machines. 443 444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 445 the Institute of Computing Technology (ICT), Chinese Academy of 446 Sciences (CAS). 447 448config MACH_LOONGSON64 449 bool "Loongson-2/3 family of machines" 450 select SYS_SUPPORTS_ZBOOT 451 help 452 This enables the support of Loongson-2/3 family of machines. 453 454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 455 family of multi-core CPUs. They are both 64-bit general-purpose 456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 458 in the People's Republic of China. The chief architect is Professor 459 Weiwu Hu. 460 461config MACH_PISTACHIO 462 bool "IMG Pistachio SoC based boards" 463 select BOOT_ELF32 464 select BOOT_RAW 465 select CEVT_R4K 466 select CLKSRC_MIPS_GIC 467 select COMMON_CLK 468 select CSRC_R4K 469 select DMA_NONCOHERENT 470 select GPIOLIB 471 select IRQ_MIPS_CPU 472 select LIBFDT 473 select MFD_SYSCON 474 select MIPS_CPU_SCACHE 475 select MIPS_GIC 476 select PINCTRL 477 select REGULATOR 478 select SYS_HAS_CPU_MIPS32_R2 479 select SYS_SUPPORTS_32BIT_KERNEL 480 select SYS_SUPPORTS_LITTLE_ENDIAN 481 select SYS_SUPPORTS_MIPS_CPS 482 select SYS_SUPPORTS_MULTITHREADING 483 select SYS_SUPPORTS_RELOCATABLE 484 select SYS_SUPPORTS_ZBOOT 485 select SYS_HAS_EARLY_PRINTK 486 select USE_GENERIC_EARLY_PRINTK_8250 487 select USE_OF 488 help 489 This enables support for the IMG Pistachio SoC platform. 490 491config MIPS_MALTA 492 bool "MIPS Malta board" 493 select ARCH_MAY_HAVE_PC_FDC 494 select ARCH_MIGHT_HAVE_PC_PARPORT 495 select ARCH_MIGHT_HAVE_PC_SERIO 496 select BOOT_ELF32 497 select BOOT_RAW 498 select BUILTIN_DTB 499 select CEVT_R4K 500 select CLKSRC_MIPS_GIC 501 select COMMON_CLK 502 select CSRC_R4K 503 select DMA_MAYBE_COHERENT 504 select GENERIC_ISA_DMA 505 select HAVE_PCSPKR_PLATFORM 506 select HAVE_PCI 507 select I8253 508 select I8259 509 select IRQ_MIPS_CPU 510 select LIBFDT 511 select MIPS_BONITO64 512 select MIPS_CPU_SCACHE 513 select MIPS_GIC 514 select MIPS_L1_CACHE_SHIFT_6 515 select MIPS_MSC 516 select PCI_GT64XXX_PCI0 517 select SMP_UP if SMP 518 select SWAP_IO_SPACE 519 select SYS_HAS_CPU_MIPS32_R1 520 select SYS_HAS_CPU_MIPS32_R2 521 select SYS_HAS_CPU_MIPS32_R3_5 522 select SYS_HAS_CPU_MIPS32_R5 523 select SYS_HAS_CPU_MIPS32_R6 524 select SYS_HAS_CPU_MIPS64_R1 525 select SYS_HAS_CPU_MIPS64_R2 526 select SYS_HAS_CPU_MIPS64_R6 527 select SYS_HAS_CPU_NEVADA 528 select SYS_HAS_CPU_RM7000 529 select SYS_SUPPORTS_32BIT_KERNEL 530 select SYS_SUPPORTS_64BIT_KERNEL 531 select SYS_SUPPORTS_BIG_ENDIAN 532 select SYS_SUPPORTS_HIGHMEM 533 select SYS_SUPPORTS_LITTLE_ENDIAN 534 select SYS_SUPPORTS_MICROMIPS 535 select SYS_SUPPORTS_MIPS16 536 select SYS_SUPPORTS_MIPS_CMP 537 select SYS_SUPPORTS_MIPS_CPS 538 select SYS_SUPPORTS_MULTITHREADING 539 select SYS_SUPPORTS_RELOCATABLE 540 select SYS_SUPPORTS_SMARTMIPS 541 select SYS_SUPPORTS_VPE_LOADER 542 select SYS_SUPPORTS_ZBOOT 543 select USE_OF 544 select ZONE_DMA32 if 64BIT 545 help 546 This enables support for the MIPS Technologies Malta evaluation 547 board. 548 549config MACH_PIC32 550 bool "Microchip PIC32 Family" 551 help 552 This enables support for the Microchip PIC32 family of platforms. 553 554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 555 microcontrollers. 556 557config NEC_MARKEINS 558 bool "NEC EMMA2RH Mark-eins board" 559 select SOC_EMMA2RH 560 select HAVE_PCI 561 help 562 This enables support for the NEC Electronics Mark-eins boards. 563 564config MACH_VR41XX 565 bool "NEC VR4100 series based machines" 566 select CEVT_R4K 567 select CSRC_R4K 568 select SYS_HAS_CPU_VR41XX 569 select SYS_SUPPORTS_MIPS16 570 select GPIOLIB 571 572config NXP_STB220 573 bool "NXP STB220 board" 574 select SOC_PNX833X 575 help 576 Support for NXP Semiconductors STB220 Development Board. 577 578config NXP_STB225 579 bool "NXP 225 board" 580 select SOC_PNX833X 581 select SOC_PNX8335 582 help 583 Support for NXP Semiconductors STB225 Development Board. 584 585config PMC_MSP 586 bool "PMC-Sierra MSP chipsets" 587 select CEVT_R4K 588 select CSRC_R4K 589 select DMA_NONCOHERENT 590 select SWAP_IO_SPACE 591 select NO_EXCEPT_FILL 592 select BOOT_RAW 593 select SYS_HAS_CPU_MIPS32_R1 594 select SYS_HAS_CPU_MIPS32_R2 595 select SYS_SUPPORTS_32BIT_KERNEL 596 select SYS_SUPPORTS_BIG_ENDIAN 597 select SYS_SUPPORTS_MIPS16 598 select IRQ_MIPS_CPU 599 select SERIAL_8250 600 select SERIAL_8250_CONSOLE 601 select USB_EHCI_BIG_ENDIAN_MMIO 602 select USB_EHCI_BIG_ENDIAN_DESC 603 help 604 This adds support for the PMC-Sierra family of Multi-Service 605 Processor System-On-A-Chips. These parts include a number 606 of integrated peripherals, interfaces and DSPs in addition to 607 a variety of MIPS cores. 608 609config RALINK 610 bool "Ralink based machines" 611 select CEVT_R4K 612 select CSRC_R4K 613 select BOOT_RAW 614 select DMA_NONCOHERENT 615 select IRQ_MIPS_CPU 616 select USE_OF 617 select SYS_HAS_CPU_MIPS32_R1 618 select SYS_HAS_CPU_MIPS32_R2 619 select SYS_SUPPORTS_32BIT_KERNEL 620 select SYS_SUPPORTS_LITTLE_ENDIAN 621 select SYS_SUPPORTS_MIPS16 622 select SYS_HAS_EARLY_PRINTK 623 select CLKDEV_LOOKUP 624 select ARCH_HAS_RESET_CONTROLLER 625 select RESET_CONTROLLER 626 627config SGI_IP22 628 bool "SGI IP22 (Indy/Indigo2)" 629 select FW_ARC 630 select FW_ARC32 631 select ARCH_MIGHT_HAVE_PC_SERIO 632 select BOOT_ELF32 633 select CEVT_R4K 634 select CSRC_R4K 635 select DEFAULT_SGI_PARTITION 636 select DMA_NONCOHERENT 637 select HAVE_EISA 638 select I8253 639 select I8259 640 select IP22_CPU_SCACHE 641 select IRQ_MIPS_CPU 642 select GENERIC_ISA_DMA_SUPPORT_BROKEN 643 select SGI_HAS_I8042 644 select SGI_HAS_INDYDOG 645 select SGI_HAS_HAL2 646 select SGI_HAS_SEEQ 647 select SGI_HAS_WD93 648 select SGI_HAS_ZILOG 649 select SWAP_IO_SPACE 650 select SYS_HAS_CPU_R4X00 651 select SYS_HAS_CPU_R5000 652 # 653 # Disable EARLY_PRINTK for now since it leads to overwritten prom 654 # memory during early boot on some machines. 655 # 656 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 657 # for a more details discussion 658 # 659 # select SYS_HAS_EARLY_PRINTK 660 select SYS_SUPPORTS_32BIT_KERNEL 661 select SYS_SUPPORTS_64BIT_KERNEL 662 select SYS_SUPPORTS_BIG_ENDIAN 663 select MIPS_L1_CACHE_SHIFT_7 664 help 665 This are the SGI Indy, Challenge S and Indigo2, as well as certain 666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 667 that runs on these, say Y here. 668 669config SGI_IP27 670 bool "SGI IP27 (Origin200/2000)" 671 select ARCH_HAS_PHYS_TO_DMA 672 select FW_ARC 673 select FW_ARC64 674 select BOOT_ELF64 675 select DEFAULT_SGI_PARTITION 676 select SYS_HAS_EARLY_PRINTK 677 select HAVE_PCI 678 select IRQ_MIPS_CPU 679 select IRQ_DOMAIN_HIERARCHY 680 select NR_CPUS_DEFAULT_64 681 select PCI_DRIVERS_GENERIC 682 select PCI_XTALK_BRIDGE 683 select SYS_HAS_CPU_R10000 684 select SYS_SUPPORTS_64BIT_KERNEL 685 select SYS_SUPPORTS_BIG_ENDIAN 686 select SYS_SUPPORTS_NUMA 687 select SYS_SUPPORTS_SMP 688 select MIPS_L1_CACHE_SHIFT_7 689 help 690 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 691 workstations. To compile a Linux kernel that runs on these, say Y 692 here. 693 694config SGI_IP28 695 bool "SGI IP28 (Indigo2 R10k)" 696 select FW_ARC 697 select FW_ARC64 698 select ARCH_MIGHT_HAVE_PC_SERIO 699 select BOOT_ELF64 700 select CEVT_R4K 701 select CSRC_R4K 702 select DEFAULT_SGI_PARTITION 703 select DMA_NONCOHERENT 704 select GENERIC_ISA_DMA_SUPPORT_BROKEN 705 select IRQ_MIPS_CPU 706 select HAVE_EISA 707 select I8253 708 select I8259 709 select SGI_HAS_I8042 710 select SGI_HAS_INDYDOG 711 select SGI_HAS_HAL2 712 select SGI_HAS_SEEQ 713 select SGI_HAS_WD93 714 select SGI_HAS_ZILOG 715 select SWAP_IO_SPACE 716 select SYS_HAS_CPU_R10000 717 # 718 # Disable EARLY_PRINTK for now since it leads to overwritten prom 719 # memory during early boot on some machines. 720 # 721 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 722 # for a more details discussion 723 # 724 # select SYS_HAS_EARLY_PRINTK 725 select SYS_SUPPORTS_64BIT_KERNEL 726 select SYS_SUPPORTS_BIG_ENDIAN 727 select MIPS_L1_CACHE_SHIFT_7 728 help 729 This is the SGI Indigo2 with R10000 processor. To compile a Linux 730 kernel that runs on these, say Y here. 731 732config SGI_IP32 733 bool "SGI IP32 (O2)" 734 select ARCH_HAS_PHYS_TO_DMA 735 select FW_ARC 736 select FW_ARC32 737 select BOOT_ELF32 738 select CEVT_R4K 739 select CSRC_R4K 740 select DMA_NONCOHERENT 741 select HAVE_PCI 742 select IRQ_MIPS_CPU 743 select R5000_CPU_SCACHE 744 select RM7000_CPU_SCACHE 745 select SYS_HAS_CPU_R5000 746 select SYS_HAS_CPU_R10000 if BROKEN 747 select SYS_HAS_CPU_RM7000 748 select SYS_HAS_CPU_NEVADA 749 select SYS_SUPPORTS_64BIT_KERNEL 750 select SYS_SUPPORTS_BIG_ENDIAN 751 help 752 If you want this kernel to run on SGI O2 workstation, say Y here. 753 754config SIBYTE_CRHINE 755 bool "Sibyte BCM91120C-CRhine" 756 select BOOT_ELF32 757 select SIBYTE_BCM1120 758 select SWAP_IO_SPACE 759 select SYS_HAS_CPU_SB1 760 select SYS_SUPPORTS_BIG_ENDIAN 761 select SYS_SUPPORTS_LITTLE_ENDIAN 762 763config SIBYTE_CARMEL 764 bool "Sibyte BCM91120x-Carmel" 765 select BOOT_ELF32 766 select SIBYTE_BCM1120 767 select SWAP_IO_SPACE 768 select SYS_HAS_CPU_SB1 769 select SYS_SUPPORTS_BIG_ENDIAN 770 select SYS_SUPPORTS_LITTLE_ENDIAN 771 772config SIBYTE_CRHONE 773 bool "Sibyte BCM91125C-CRhone" 774 select BOOT_ELF32 775 select SIBYTE_BCM1125 776 select SWAP_IO_SPACE 777 select SYS_HAS_CPU_SB1 778 select SYS_SUPPORTS_BIG_ENDIAN 779 select SYS_SUPPORTS_HIGHMEM 780 select SYS_SUPPORTS_LITTLE_ENDIAN 781 782config SIBYTE_RHONE 783 bool "Sibyte BCM91125E-Rhone" 784 select BOOT_ELF32 785 select SIBYTE_BCM1125H 786 select SWAP_IO_SPACE 787 select SYS_HAS_CPU_SB1 788 select SYS_SUPPORTS_BIG_ENDIAN 789 select SYS_SUPPORTS_LITTLE_ENDIAN 790 791config SIBYTE_SWARM 792 bool "Sibyte BCM91250A-SWARM" 793 select BOOT_ELF32 794 select HAVE_PATA_PLATFORM 795 select SIBYTE_SB1250 796 select SWAP_IO_SPACE 797 select SYS_HAS_CPU_SB1 798 select SYS_SUPPORTS_BIG_ENDIAN 799 select SYS_SUPPORTS_HIGHMEM 800 select SYS_SUPPORTS_LITTLE_ENDIAN 801 select ZONE_DMA32 if 64BIT 802 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 803 804config SIBYTE_LITTLESUR 805 bool "Sibyte BCM91250C2-LittleSur" 806 select BOOT_ELF32 807 select HAVE_PATA_PLATFORM 808 select SIBYTE_SB1250 809 select SWAP_IO_SPACE 810 select SYS_HAS_CPU_SB1 811 select SYS_SUPPORTS_BIG_ENDIAN 812 select SYS_SUPPORTS_HIGHMEM 813 select SYS_SUPPORTS_LITTLE_ENDIAN 814 select ZONE_DMA32 if 64BIT 815 816config SIBYTE_SENTOSA 817 bool "Sibyte BCM91250E-Sentosa" 818 select BOOT_ELF32 819 select SIBYTE_SB1250 820 select SWAP_IO_SPACE 821 select SYS_HAS_CPU_SB1 822 select SYS_SUPPORTS_BIG_ENDIAN 823 select SYS_SUPPORTS_LITTLE_ENDIAN 824 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 825 826config SIBYTE_BIGSUR 827 bool "Sibyte BCM91480B-BigSur" 828 select BOOT_ELF32 829 select NR_CPUS_DEFAULT_4 830 select SIBYTE_BCM1x80 831 select SWAP_IO_SPACE 832 select SYS_HAS_CPU_SB1 833 select SYS_SUPPORTS_BIG_ENDIAN 834 select SYS_SUPPORTS_HIGHMEM 835 select SYS_SUPPORTS_LITTLE_ENDIAN 836 select ZONE_DMA32 if 64BIT 837 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 838 839config SNI_RM 840 bool "SNI RM200/300/400" 841 select FW_ARC if CPU_LITTLE_ENDIAN 842 select FW_ARC32 if CPU_LITTLE_ENDIAN 843 select FW_SNIPROM if CPU_BIG_ENDIAN 844 select ARCH_MAY_HAVE_PC_FDC 845 select ARCH_MIGHT_HAVE_PC_PARPORT 846 select ARCH_MIGHT_HAVE_PC_SERIO 847 select BOOT_ELF32 848 select CEVT_R4K 849 select CSRC_R4K 850 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 851 select DMA_NONCOHERENT 852 select GENERIC_ISA_DMA 853 select HAVE_EISA 854 select HAVE_PCSPKR_PLATFORM 855 select HAVE_PCI 856 select IRQ_MIPS_CPU 857 select I8253 858 select I8259 859 select ISA 860 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 861 select SYS_HAS_CPU_R4X00 862 select SYS_HAS_CPU_R5000 863 select SYS_HAS_CPU_R10000 864 select R5000_CPU_SCACHE 865 select SYS_HAS_EARLY_PRINTK 866 select SYS_SUPPORTS_32BIT_KERNEL 867 select SYS_SUPPORTS_64BIT_KERNEL 868 select SYS_SUPPORTS_BIG_ENDIAN 869 select SYS_SUPPORTS_HIGHMEM 870 select SYS_SUPPORTS_LITTLE_ENDIAN 871 help 872 The SNI RM200/300/400 are MIPS-based machines manufactured by 873 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 874 Technology and now in turn merged with Fujitsu. Say Y here to 875 support this machine type. 876 877config MACH_TX39XX 878 bool "Toshiba TX39 series based machines" 879 880config MACH_TX49XX 881 bool "Toshiba TX49 series based machines" 882 883config MIKROTIK_RB532 884 bool "Mikrotik RB532 boards" 885 select CEVT_R4K 886 select CSRC_R4K 887 select DMA_NONCOHERENT 888 select HAVE_PCI 889 select IRQ_MIPS_CPU 890 select SYS_HAS_CPU_MIPS32_R1 891 select SYS_SUPPORTS_32BIT_KERNEL 892 select SYS_SUPPORTS_LITTLE_ENDIAN 893 select SWAP_IO_SPACE 894 select BOOT_RAW 895 select GPIOLIB 896 select MIPS_L1_CACHE_SHIFT_4 897 help 898 Support the Mikrotik(tm) RouterBoard 532 series, 899 based on the IDT RC32434 SoC. 900 901config CAVIUM_OCTEON_SOC 902 bool "Cavium Networks Octeon SoC based boards" 903 select CEVT_R4K 904 select ARCH_HAS_PHYS_TO_DMA 905 select HAVE_RAPIDIO 906 select PHYS_ADDR_T_64BIT 907 select SYS_SUPPORTS_64BIT_KERNEL 908 select SYS_SUPPORTS_BIG_ENDIAN 909 select EDAC_SUPPORT 910 select EDAC_ATOMIC_SCRUB 911 select SYS_SUPPORTS_LITTLE_ENDIAN 912 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 913 select SYS_HAS_EARLY_PRINTK 914 select SYS_HAS_CPU_CAVIUM_OCTEON 915 select HAVE_PCI 916 select ZONE_DMA32 917 select HOLES_IN_ZONE 918 select GPIOLIB 919 select LIBFDT 920 select USE_OF 921 select ARCH_SPARSEMEM_ENABLE 922 select SYS_SUPPORTS_SMP 923 select NR_CPUS_DEFAULT_64 924 select MIPS_NR_CPU_NR_MAP_1024 925 select BUILTIN_DTB 926 select MTD_COMPLEX_MAPPINGS 927 select SWIOTLB 928 select SYS_SUPPORTS_RELOCATABLE 929 help 930 This option supports all of the Octeon reference boards from Cavium 931 Networks. It builds a kernel that dynamically determines the Octeon 932 CPU type and supports all known board reference implementations. 933 Some of the supported boards are: 934 EBT3000 935 EBH3000 936 EBH3100 937 Thunder 938 Kodama 939 Hikari 940 Say Y here for most Octeon reference boards. 941 942config NLM_XLR_BOARD 943 bool "Netlogic XLR/XLS based systems" 944 select BOOT_ELF32 945 select NLM_COMMON 946 select SYS_HAS_CPU_XLR 947 select SYS_SUPPORTS_SMP 948 select HAVE_PCI 949 select SWAP_IO_SPACE 950 select SYS_SUPPORTS_32BIT_KERNEL 951 select SYS_SUPPORTS_64BIT_KERNEL 952 select PHYS_ADDR_T_64BIT 953 select SYS_SUPPORTS_BIG_ENDIAN 954 select SYS_SUPPORTS_HIGHMEM 955 select NR_CPUS_DEFAULT_32 956 select CEVT_R4K 957 select CSRC_R4K 958 select IRQ_MIPS_CPU 959 select ZONE_DMA32 if 64BIT 960 select SYNC_R4K 961 select SYS_HAS_EARLY_PRINTK 962 select SYS_SUPPORTS_ZBOOT 963 select SYS_SUPPORTS_ZBOOT_UART16550 964 help 965 Support for systems based on Netlogic XLR and XLS processors. 966 Say Y here if you have a XLR or XLS based board. 967 968config NLM_XLP_BOARD 969 bool "Netlogic XLP based systems" 970 select BOOT_ELF32 971 select NLM_COMMON 972 select SYS_HAS_CPU_XLP 973 select SYS_SUPPORTS_SMP 974 select HAVE_PCI 975 select SYS_SUPPORTS_32BIT_KERNEL 976 select SYS_SUPPORTS_64BIT_KERNEL 977 select PHYS_ADDR_T_64BIT 978 select GPIOLIB 979 select SYS_SUPPORTS_BIG_ENDIAN 980 select SYS_SUPPORTS_LITTLE_ENDIAN 981 select SYS_SUPPORTS_HIGHMEM 982 select NR_CPUS_DEFAULT_32 983 select CEVT_R4K 984 select CSRC_R4K 985 select IRQ_MIPS_CPU 986 select ZONE_DMA32 if 64BIT 987 select SYNC_R4K 988 select SYS_HAS_EARLY_PRINTK 989 select USE_OF 990 select SYS_SUPPORTS_ZBOOT 991 select SYS_SUPPORTS_ZBOOT_UART16550 992 help 993 This board is based on Netlogic XLP Processor. 994 Say Y here if you have a XLP based board. 995 996config MIPS_PARAVIRT 997 bool "Para-Virtualized guest system" 998 select CEVT_R4K 999 select CSRC_R4K 1000 select SYS_SUPPORTS_64BIT_KERNEL 1001 select SYS_SUPPORTS_32BIT_KERNEL 1002 select SYS_SUPPORTS_BIG_ENDIAN 1003 select SYS_SUPPORTS_SMP 1004 select NR_CPUS_DEFAULT_4 1005 select SYS_HAS_EARLY_PRINTK 1006 select SYS_HAS_CPU_MIPS32_R2 1007 select SYS_HAS_CPU_MIPS64_R2 1008 select SYS_HAS_CPU_CAVIUM_OCTEON 1009 select HAVE_PCI 1010 select SWAP_IO_SPACE 1011 help 1012 This option supports guest running under ???? 1013 1014endchoice 1015 1016source "arch/mips/alchemy/Kconfig" 1017source "arch/mips/ath25/Kconfig" 1018source "arch/mips/ath79/Kconfig" 1019source "arch/mips/bcm47xx/Kconfig" 1020source "arch/mips/bcm63xx/Kconfig" 1021source "arch/mips/bmips/Kconfig" 1022source "arch/mips/generic/Kconfig" 1023source "arch/mips/jazz/Kconfig" 1024source "arch/mips/jz4740/Kconfig" 1025source "arch/mips/lantiq/Kconfig" 1026source "arch/mips/lasat/Kconfig" 1027source "arch/mips/pic32/Kconfig" 1028source "arch/mips/pistachio/Kconfig" 1029source "arch/mips/pmcs-msp71xx/Kconfig" 1030source "arch/mips/ralink/Kconfig" 1031source "arch/mips/sgi-ip27/Kconfig" 1032source "arch/mips/sibyte/Kconfig" 1033source "arch/mips/txx9/Kconfig" 1034source "arch/mips/vr41xx/Kconfig" 1035source "arch/mips/cavium-octeon/Kconfig" 1036source "arch/mips/loongson32/Kconfig" 1037source "arch/mips/loongson64/Kconfig" 1038source "arch/mips/netlogic/Kconfig" 1039source "arch/mips/paravirt/Kconfig" 1040 1041endmenu 1042 1043config GENERIC_HWEIGHT 1044 bool 1045 default y 1046 1047config GENERIC_CALIBRATE_DELAY 1048 bool 1049 default y 1050 1051config SCHED_OMIT_FRAME_POINTER 1052 bool 1053 default y 1054 1055# 1056# Select some configuration options automatically based on user selections. 1057# 1058config FW_ARC 1059 bool 1060 1061config ARCH_MAY_HAVE_PC_FDC 1062 bool 1063 1064config BOOT_RAW 1065 bool 1066 1067config CEVT_BCM1480 1068 bool 1069 1070config CEVT_DS1287 1071 bool 1072 1073config CEVT_GT641XX 1074 bool 1075 1076config CEVT_R4K 1077 bool 1078 1079config CEVT_SB1250 1080 bool 1081 1082config CEVT_TXX9 1083 bool 1084 1085config CSRC_BCM1480 1086 bool 1087 1088config CSRC_IOASIC 1089 bool 1090 1091config CSRC_R4K 1092 bool 1093 1094config CSRC_SB1250 1095 bool 1096 1097config MIPS_CLOCK_VSYSCALL 1098 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1099 1100config GPIO_TXX9 1101 select GPIOLIB 1102 bool 1103 1104config FW_CFE 1105 bool 1106 1107config ARCH_SUPPORTS_UPROBES 1108 bool 1109 1110config DMA_MAYBE_COHERENT 1111 select ARCH_HAS_DMA_COHERENCE_H 1112 select DMA_NONCOHERENT 1113 bool 1114 1115config DMA_PERDEV_COHERENT 1116 bool 1117 select ARCH_HAS_SETUP_DMA_OPS 1118 select DMA_NONCOHERENT 1119 1120config DMA_NONCOHERENT 1121 bool 1122 # 1123 # MIPS allows mixing "slightly different" Cacheability and Coherency 1124 # Attribute bits. It is believed that the uncached access through 1125 # KSEG1 and the implementation specific "uncached accelerated" used 1126 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1127 # significant advantages. 1128 # 1129 select ARCH_HAS_DMA_WRITE_COMBINE 1130 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1131 select ARCH_HAS_UNCACHED_SEGMENT 1132 select NEED_DMA_MAP_STATE 1133 select ARCH_HAS_DMA_COHERENT_TO_PFN 1134 select DMA_NONCOHERENT_CACHE_SYNC 1135 1136config SYS_HAS_EARLY_PRINTK 1137 bool 1138 1139config SYS_SUPPORTS_HOTPLUG_CPU 1140 bool 1141 1142config MIPS_BONITO64 1143 bool 1144 1145config MIPS_MSC 1146 bool 1147 1148config MIPS_NILE4 1149 bool 1150 1151config SYNC_R4K 1152 bool 1153 1154config MIPS_MACHINE 1155 def_bool n 1156 1157config NO_IOPORT_MAP 1158 def_bool n 1159 1160config GENERIC_CSUM 1161 bool 1162 default y if !CPU_HAS_LOAD_STORE_LR 1163 1164config GENERIC_ISA_DMA 1165 bool 1166 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1167 select ISA_DMA_API 1168 1169config GENERIC_ISA_DMA_SUPPORT_BROKEN 1170 bool 1171 select GENERIC_ISA_DMA 1172 1173config ISA_DMA_API 1174 bool 1175 1176config HOLES_IN_ZONE 1177 bool 1178 1179config SYS_SUPPORTS_RELOCATABLE 1180 bool 1181 help 1182 Selected if the platform supports relocating the kernel. 1183 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1184 to allow access to command line and entropy sources. 1185 1186config MIPS_CBPF_JIT 1187 def_bool y 1188 depends on BPF_JIT && HAVE_CBPF_JIT 1189 1190config MIPS_EBPF_JIT 1191 def_bool y 1192 depends on BPF_JIT && HAVE_EBPF_JIT 1193 1194 1195# 1196# Endianness selection. Sufficiently obscure so many users don't know what to 1197# answer,so we try hard to limit the available choices. Also the use of a 1198# choice statement should be more obvious to the user. 1199# 1200choice 1201 prompt "Endianness selection" 1202 help 1203 Some MIPS machines can be configured for either little or big endian 1204 byte order. These modes require different kernels and a different 1205 Linux distribution. In general there is one preferred byteorder for a 1206 particular system but some systems are just as commonly used in the 1207 one or the other endianness. 1208 1209config CPU_BIG_ENDIAN 1210 bool "Big endian" 1211 depends on SYS_SUPPORTS_BIG_ENDIAN 1212 1213config CPU_LITTLE_ENDIAN 1214 bool "Little endian" 1215 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1216 1217endchoice 1218 1219config EXPORT_UASM 1220 bool 1221 1222config SYS_SUPPORTS_APM_EMULATION 1223 bool 1224 1225config SYS_SUPPORTS_BIG_ENDIAN 1226 bool 1227 1228config SYS_SUPPORTS_LITTLE_ENDIAN 1229 bool 1230 1231config SYS_SUPPORTS_HUGETLBFS 1232 bool 1233 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1234 default y 1235 1236config MIPS_HUGE_TLB_SUPPORT 1237 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1238 1239config IRQ_CPU_RM7K 1240 bool 1241 1242config IRQ_MSP_SLP 1243 bool 1244 1245config IRQ_MSP_CIC 1246 bool 1247 1248config IRQ_TXX9 1249 bool 1250 1251config IRQ_GT641XX 1252 bool 1253 1254config PCI_GT64XXX_PCI0 1255 bool 1256 1257config PCI_XTALK_BRIDGE 1258 bool 1259 1260config NO_EXCEPT_FILL 1261 bool 1262 1263config SOC_EMMA2RH 1264 bool 1265 select CEVT_R4K 1266 select CSRC_R4K 1267 select DMA_NONCOHERENT 1268 select IRQ_MIPS_CPU 1269 select SWAP_IO_SPACE 1270 select SYS_HAS_CPU_R5500 1271 select SYS_SUPPORTS_32BIT_KERNEL 1272 select SYS_SUPPORTS_64BIT_KERNEL 1273 select SYS_SUPPORTS_BIG_ENDIAN 1274 1275config SOC_PNX833X 1276 bool 1277 select CEVT_R4K 1278 select CSRC_R4K 1279 select IRQ_MIPS_CPU 1280 select DMA_NONCOHERENT 1281 select SYS_HAS_CPU_MIPS32_R2 1282 select SYS_SUPPORTS_32BIT_KERNEL 1283 select SYS_SUPPORTS_LITTLE_ENDIAN 1284 select SYS_SUPPORTS_BIG_ENDIAN 1285 select SYS_SUPPORTS_MIPS16 1286 select CPU_MIPSR2_IRQ_VI 1287 1288config SOC_PNX8335 1289 bool 1290 select SOC_PNX833X 1291 1292config MIPS_SPRAM 1293 bool 1294 1295config SWAP_IO_SPACE 1296 bool 1297 1298config SGI_HAS_INDYDOG 1299 bool 1300 1301config SGI_HAS_HAL2 1302 bool 1303 1304config SGI_HAS_SEEQ 1305 bool 1306 1307config SGI_HAS_WD93 1308 bool 1309 1310config SGI_HAS_ZILOG 1311 bool 1312 1313config SGI_HAS_I8042 1314 bool 1315 1316config DEFAULT_SGI_PARTITION 1317 bool 1318 1319config FW_ARC32 1320 bool 1321 1322config FW_SNIPROM 1323 bool 1324 1325config BOOT_ELF32 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT_4 1329 bool 1330 1331config MIPS_L1_CACHE_SHIFT_5 1332 bool 1333 1334config MIPS_L1_CACHE_SHIFT_6 1335 bool 1336 1337config MIPS_L1_CACHE_SHIFT_7 1338 bool 1339 1340config MIPS_L1_CACHE_SHIFT 1341 int 1342 default "7" if MIPS_L1_CACHE_SHIFT_7 1343 default "6" if MIPS_L1_CACHE_SHIFT_6 1344 default "5" if MIPS_L1_CACHE_SHIFT_5 1345 default "4" if MIPS_L1_CACHE_SHIFT_4 1346 default "5" 1347 1348config HAVE_STD_PC_SERIAL_PORT 1349 bool 1350 1351config ARC_CONSOLE 1352 bool "ARC console support" 1353 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1354 1355config ARC_MEMORY 1356 bool 1357 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1358 default y 1359 1360config ARC_PROMLIB 1361 bool 1362 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1363 default y 1364 1365config FW_ARC64 1366 bool 1367 1368config BOOT_ELF64 1369 bool 1370 1371menu "CPU selection" 1372 1373choice 1374 prompt "CPU type" 1375 default CPU_R4X00 1376 1377config CPU_LOONGSON3 1378 bool "Loongson 3 CPU" 1379 depends on SYS_HAS_CPU_LOONGSON3 1380 select ARCH_HAS_PHYS_TO_DMA 1381 select CPU_SUPPORTS_64BIT_KERNEL 1382 select CPU_SUPPORTS_HIGHMEM 1383 select CPU_SUPPORTS_HUGEPAGES 1384 select CPU_HAS_LOAD_STORE_LR 1385 select WEAK_ORDERING 1386 select WEAK_REORDERING_BEYOND_LLSC 1387 select MIPS_PGD_C0_CONTEXT 1388 select MIPS_L1_CACHE_SHIFT_6 1389 select GPIOLIB 1390 select SWIOTLB 1391 help 1392 The Loongson 3 processor implements the MIPS64R2 instruction 1393 set with many extensions. 1394 1395config LOONGSON3_ENHANCEMENT 1396 bool "New Loongson 3 CPU Enhancements" 1397 default n 1398 select CPU_MIPSR2 1399 select CPU_HAS_PREFETCH 1400 depends on CPU_LOONGSON3 1401 help 1402 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1403 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1404 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1405 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1406 Fast TLB refill support, etc. 1407 1408 This option enable those enhancements which are not probed at run 1409 time. If you want a generic kernel to run on all Loongson 3 machines, 1410 please say 'N' here. If you want a high-performance kernel to run on 1411 new Loongson 3 machines only, please say 'Y' here. 1412 1413config CPU_LOONGSON3_WORKAROUNDS 1414 bool "Old Loongson 3 LLSC Workarounds" 1415 default y if SMP 1416 depends on CPU_LOONGSON3 1417 help 1418 Loongson 3 processors have the llsc issues which require workarounds. 1419 Without workarounds the system may hang unexpectedly. 1420 1421 Newer Loongson 3 will fix these issues and no workarounds are needed. 1422 The workarounds have no significant side effect on them but may 1423 decrease the performance of the system so this option should be 1424 disabled unless the kernel is intended to be run on old systems. 1425 1426 If unsure, please say Y. 1427 1428config CPU_LOONGSON2E 1429 bool "Loongson 2E" 1430 depends on SYS_HAS_CPU_LOONGSON2E 1431 select CPU_LOONGSON2 1432 help 1433 The Loongson 2E processor implements the MIPS III instruction set 1434 with many extensions. 1435 1436 It has an internal FPGA northbridge, which is compatible to 1437 bonito64. 1438 1439config CPU_LOONGSON2F 1440 bool "Loongson 2F" 1441 depends on SYS_HAS_CPU_LOONGSON2F 1442 select CPU_LOONGSON2 1443 select GPIOLIB 1444 help 1445 The Loongson 2F processor implements the MIPS III instruction set 1446 with many extensions. 1447 1448 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1449 have a similar programming interface with FPGA northbridge used in 1450 Loongson2E. 1451 1452config CPU_LOONGSON1B 1453 bool "Loongson 1B" 1454 depends on SYS_HAS_CPU_LOONGSON1B 1455 select CPU_LOONGSON1 1456 select LEDS_GPIO_REGISTER 1457 help 1458 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1459 Release 1 instruction set and part of the MIPS32 Release 2 1460 instruction set. 1461 1462config CPU_LOONGSON1C 1463 bool "Loongson 1C" 1464 depends on SYS_HAS_CPU_LOONGSON1C 1465 select CPU_LOONGSON1 1466 select LEDS_GPIO_REGISTER 1467 help 1468 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1469 Release 1 instruction set and part of the MIPS32 Release 2 1470 instruction set. 1471 1472config CPU_MIPS32_R1 1473 bool "MIPS32 Release 1" 1474 depends on SYS_HAS_CPU_MIPS32_R1 1475 select CPU_HAS_PREFETCH 1476 select CPU_HAS_LOAD_STORE_LR 1477 select CPU_SUPPORTS_32BIT_KERNEL 1478 select CPU_SUPPORTS_HIGHMEM 1479 help 1480 Choose this option to build a kernel for release 1 or later of the 1481 MIPS32 architecture. Most modern embedded systems with a 32-bit 1482 MIPS processor are based on a MIPS32 processor. If you know the 1483 specific type of processor in your system, choose those that one 1484 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1485 Release 2 of the MIPS32 architecture is available since several 1486 years so chances are you even have a MIPS32 Release 2 processor 1487 in which case you should choose CPU_MIPS32_R2 instead for better 1488 performance. 1489 1490config CPU_MIPS32_R2 1491 bool "MIPS32 Release 2" 1492 depends on SYS_HAS_CPU_MIPS32_R2 1493 select CPU_HAS_PREFETCH 1494 select CPU_HAS_LOAD_STORE_LR 1495 select CPU_SUPPORTS_32BIT_KERNEL 1496 select CPU_SUPPORTS_HIGHMEM 1497 select CPU_SUPPORTS_MSA 1498 select HAVE_KVM 1499 help 1500 Choose this option to build a kernel for release 2 or later of the 1501 MIPS32 architecture. Most modern embedded systems with a 32-bit 1502 MIPS processor are based on a MIPS32 processor. If you know the 1503 specific type of processor in your system, choose those that one 1504 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1505 1506config CPU_MIPS32_R6 1507 bool "MIPS32 Release 6" 1508 depends on SYS_HAS_CPU_MIPS32_R6 1509 select CPU_HAS_PREFETCH 1510 select CPU_SUPPORTS_32BIT_KERNEL 1511 select CPU_SUPPORTS_HIGHMEM 1512 select CPU_SUPPORTS_MSA 1513 select HAVE_KVM 1514 select MIPS_O32_FP64_SUPPORT 1515 help 1516 Choose this option to build a kernel for release 6 or later of the 1517 MIPS32 architecture. New MIPS processors, starting with the Warrior 1518 family, are based on a MIPS32r6 processor. If you own an older 1519 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1520 1521config CPU_MIPS64_R1 1522 bool "MIPS64 Release 1" 1523 depends on SYS_HAS_CPU_MIPS64_R1 1524 select CPU_HAS_PREFETCH 1525 select CPU_HAS_LOAD_STORE_LR 1526 select CPU_SUPPORTS_32BIT_KERNEL 1527 select CPU_SUPPORTS_64BIT_KERNEL 1528 select CPU_SUPPORTS_HIGHMEM 1529 select CPU_SUPPORTS_HUGEPAGES 1530 help 1531 Choose this option to build a kernel for release 1 or later of the 1532 MIPS64 architecture. Many modern embedded systems with a 64-bit 1533 MIPS processor are based on a MIPS64 processor. If you know the 1534 specific type of processor in your system, choose those that one 1535 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1536 Release 2 of the MIPS64 architecture is available since several 1537 years so chances are you even have a MIPS64 Release 2 processor 1538 in which case you should choose CPU_MIPS64_R2 instead for better 1539 performance. 1540 1541config CPU_MIPS64_R2 1542 bool "MIPS64 Release 2" 1543 depends on SYS_HAS_CPU_MIPS64_R2 1544 select CPU_HAS_PREFETCH 1545 select CPU_HAS_LOAD_STORE_LR 1546 select CPU_SUPPORTS_32BIT_KERNEL 1547 select CPU_SUPPORTS_64BIT_KERNEL 1548 select CPU_SUPPORTS_HIGHMEM 1549 select CPU_SUPPORTS_HUGEPAGES 1550 select CPU_SUPPORTS_MSA 1551 select HAVE_KVM 1552 help 1553 Choose this option to build a kernel for release 2 or later of the 1554 MIPS64 architecture. Many modern embedded systems with a 64-bit 1555 MIPS processor are based on a MIPS64 processor. If you know the 1556 specific type of processor in your system, choose those that one 1557 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1558 1559config CPU_MIPS64_R6 1560 bool "MIPS64 Release 6" 1561 depends on SYS_HAS_CPU_MIPS64_R6 1562 select CPU_HAS_PREFETCH 1563 select CPU_SUPPORTS_32BIT_KERNEL 1564 select CPU_SUPPORTS_64BIT_KERNEL 1565 select CPU_SUPPORTS_HIGHMEM 1566 select CPU_SUPPORTS_HUGEPAGES 1567 select CPU_SUPPORTS_MSA 1568 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1569 select HAVE_KVM 1570 help 1571 Choose this option to build a kernel for release 6 or later of the 1572 MIPS64 architecture. New MIPS processors, starting with the Warrior 1573 family, are based on a MIPS64r6 processor. If you own an older 1574 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1575 1576config CPU_R3000 1577 bool "R3000" 1578 depends on SYS_HAS_CPU_R3000 1579 select CPU_HAS_WB 1580 select CPU_HAS_LOAD_STORE_LR 1581 select CPU_SUPPORTS_32BIT_KERNEL 1582 select CPU_SUPPORTS_HIGHMEM 1583 help 1584 Please make sure to pick the right CPU type. Linux/MIPS is not 1585 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1586 *not* work on R4000 machines and vice versa. However, since most 1587 of the supported machines have an R4000 (or similar) CPU, R4x00 1588 might be a safe bet. If the resulting kernel does not work, 1589 try to recompile with R3000. 1590 1591config CPU_TX39XX 1592 bool "R39XX" 1593 depends on SYS_HAS_CPU_TX39XX 1594 select CPU_SUPPORTS_32BIT_KERNEL 1595 select CPU_HAS_LOAD_STORE_LR 1596 1597config CPU_VR41XX 1598 bool "R41xx" 1599 depends on SYS_HAS_CPU_VR41XX 1600 select CPU_SUPPORTS_32BIT_KERNEL 1601 select CPU_SUPPORTS_64BIT_KERNEL 1602 select CPU_HAS_LOAD_STORE_LR 1603 help 1604 The options selects support for the NEC VR4100 series of processors. 1605 Only choose this option if you have one of these processors as a 1606 kernel built with this option will not run on any other type of 1607 processor or vice versa. 1608 1609config CPU_R4300 1610 bool "R4300" 1611 depends on SYS_HAS_CPU_R4300 1612 select CPU_SUPPORTS_32BIT_KERNEL 1613 select CPU_SUPPORTS_64BIT_KERNEL 1614 select CPU_HAS_LOAD_STORE_LR 1615 help 1616 MIPS Technologies R4300-series processors. 1617 1618config CPU_R4X00 1619 bool "R4x00" 1620 depends on SYS_HAS_CPU_R4X00 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_64BIT_KERNEL 1623 select CPU_SUPPORTS_HUGEPAGES 1624 select CPU_HAS_LOAD_STORE_LR 1625 help 1626 MIPS Technologies R4000-series processors other than 4300, including 1627 the R4000, R4400, R4600, and 4700. 1628 1629config CPU_TX49XX 1630 bool "R49XX" 1631 depends on SYS_HAS_CPU_TX49XX 1632 select CPU_HAS_PREFETCH 1633 select CPU_HAS_LOAD_STORE_LR 1634 select CPU_SUPPORTS_32BIT_KERNEL 1635 select CPU_SUPPORTS_64BIT_KERNEL 1636 select CPU_SUPPORTS_HUGEPAGES 1637 1638config CPU_R5000 1639 bool "R5000" 1640 depends on SYS_HAS_CPU_R5000 1641 select CPU_SUPPORTS_32BIT_KERNEL 1642 select CPU_SUPPORTS_64BIT_KERNEL 1643 select CPU_SUPPORTS_HUGEPAGES 1644 select CPU_HAS_LOAD_STORE_LR 1645 help 1646 MIPS Technologies R5000-series processors other than the Nevada. 1647 1648config CPU_R5432 1649 bool "R5432" 1650 depends on SYS_HAS_CPU_R5432 1651 select CPU_SUPPORTS_32BIT_KERNEL 1652 select CPU_SUPPORTS_64BIT_KERNEL 1653 select CPU_SUPPORTS_HUGEPAGES 1654 select CPU_HAS_LOAD_STORE_LR 1655 1656config CPU_R5500 1657 bool "R5500" 1658 depends on SYS_HAS_CPU_R5500 1659 select CPU_SUPPORTS_32BIT_KERNEL 1660 select CPU_SUPPORTS_64BIT_KERNEL 1661 select CPU_SUPPORTS_HUGEPAGES 1662 select CPU_HAS_LOAD_STORE_LR 1663 help 1664 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1665 instruction set. 1666 1667config CPU_NEVADA 1668 bool "RM52xx" 1669 depends on SYS_HAS_CPU_NEVADA 1670 select CPU_SUPPORTS_32BIT_KERNEL 1671 select CPU_SUPPORTS_64BIT_KERNEL 1672 select CPU_SUPPORTS_HUGEPAGES 1673 select CPU_HAS_LOAD_STORE_LR 1674 help 1675 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1676 1677config CPU_R8000 1678 bool "R8000" 1679 depends on SYS_HAS_CPU_R8000 1680 select CPU_HAS_PREFETCH 1681 select CPU_HAS_LOAD_STORE_LR 1682 select CPU_SUPPORTS_64BIT_KERNEL 1683 help 1684 MIPS Technologies R8000 processors. Note these processors are 1685 uncommon and the support for them is incomplete. 1686 1687config CPU_R10000 1688 bool "R10000" 1689 depends on SYS_HAS_CPU_R10000 1690 select CPU_HAS_PREFETCH 1691 select CPU_HAS_LOAD_STORE_LR 1692 select CPU_SUPPORTS_32BIT_KERNEL 1693 select CPU_SUPPORTS_64BIT_KERNEL 1694 select CPU_SUPPORTS_HIGHMEM 1695 select CPU_SUPPORTS_HUGEPAGES 1696 help 1697 MIPS Technologies R10000-series processors. 1698 1699config CPU_RM7000 1700 bool "RM7000" 1701 depends on SYS_HAS_CPU_RM7000 1702 select CPU_HAS_PREFETCH 1703 select CPU_HAS_LOAD_STORE_LR 1704 select CPU_SUPPORTS_32BIT_KERNEL 1705 select CPU_SUPPORTS_64BIT_KERNEL 1706 select CPU_SUPPORTS_HIGHMEM 1707 select CPU_SUPPORTS_HUGEPAGES 1708 1709config CPU_SB1 1710 bool "SB1" 1711 depends on SYS_HAS_CPU_SB1 1712 select CPU_HAS_LOAD_STORE_LR 1713 select CPU_SUPPORTS_32BIT_KERNEL 1714 select CPU_SUPPORTS_64BIT_KERNEL 1715 select CPU_SUPPORTS_HIGHMEM 1716 select CPU_SUPPORTS_HUGEPAGES 1717 select WEAK_ORDERING 1718 1719config CPU_CAVIUM_OCTEON 1720 bool "Cavium Octeon processor" 1721 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1722 select CPU_HAS_PREFETCH 1723 select CPU_HAS_LOAD_STORE_LR 1724 select CPU_SUPPORTS_64BIT_KERNEL 1725 select WEAK_ORDERING 1726 select CPU_SUPPORTS_HIGHMEM 1727 select CPU_SUPPORTS_HUGEPAGES 1728 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1729 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1730 select MIPS_L1_CACHE_SHIFT_7 1731 select HAVE_KVM 1732 help 1733 The Cavium Octeon processor is a highly integrated chip containing 1734 many ethernet hardware widgets for networking tasks. The processor 1735 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1736 Full details can be found at http://www.caviumnetworks.com. 1737 1738config CPU_BMIPS 1739 bool "Broadcom BMIPS" 1740 depends on SYS_HAS_CPU_BMIPS 1741 select CPU_MIPS32 1742 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1743 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1744 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1745 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1746 select CPU_SUPPORTS_32BIT_KERNEL 1747 select DMA_NONCOHERENT 1748 select IRQ_MIPS_CPU 1749 select SWAP_IO_SPACE 1750 select WEAK_ORDERING 1751 select CPU_SUPPORTS_HIGHMEM 1752 select CPU_HAS_PREFETCH 1753 select CPU_HAS_LOAD_STORE_LR 1754 select CPU_SUPPORTS_CPUFREQ 1755 select MIPS_EXTERNAL_TIMER 1756 help 1757 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1758 1759config CPU_XLR 1760 bool "Netlogic XLR SoC" 1761 depends on SYS_HAS_CPU_XLR 1762 select CPU_HAS_LOAD_STORE_LR 1763 select CPU_SUPPORTS_32BIT_KERNEL 1764 select CPU_SUPPORTS_64BIT_KERNEL 1765 select CPU_SUPPORTS_HIGHMEM 1766 select CPU_SUPPORTS_HUGEPAGES 1767 select WEAK_ORDERING 1768 select WEAK_REORDERING_BEYOND_LLSC 1769 help 1770 Netlogic Microsystems XLR/XLS processors. 1771 1772config CPU_XLP 1773 bool "Netlogic XLP SoC" 1774 depends on SYS_HAS_CPU_XLP 1775 select CPU_SUPPORTS_32BIT_KERNEL 1776 select CPU_SUPPORTS_64BIT_KERNEL 1777 select CPU_SUPPORTS_HIGHMEM 1778 select WEAK_ORDERING 1779 select WEAK_REORDERING_BEYOND_LLSC 1780 select CPU_HAS_PREFETCH 1781 select CPU_HAS_LOAD_STORE_LR 1782 select CPU_MIPSR2 1783 select CPU_SUPPORTS_HUGEPAGES 1784 select MIPS_ASID_BITS_VARIABLE 1785 help 1786 Netlogic Microsystems XLP processors. 1787endchoice 1788 1789config CPU_MIPS32_3_5_FEATURES 1790 bool "MIPS32 Release 3.5 Features" 1791 depends on SYS_HAS_CPU_MIPS32_R3_5 1792 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1793 help 1794 Choose this option to build a kernel for release 2 or later of the 1795 MIPS32 architecture including features from the 3.5 release such as 1796 support for Enhanced Virtual Addressing (EVA). 1797 1798config CPU_MIPS32_3_5_EVA 1799 bool "Enhanced Virtual Addressing (EVA)" 1800 depends on CPU_MIPS32_3_5_FEATURES 1801 select EVA 1802 default y 1803 help 1804 Choose this option if you want to enable the Enhanced Virtual 1805 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1806 One of its primary benefits is an increase in the maximum size 1807 of lowmem (up to 3GB). If unsure, say 'N' here. 1808 1809config CPU_MIPS32_R5_FEATURES 1810 bool "MIPS32 Release 5 Features" 1811 depends on SYS_HAS_CPU_MIPS32_R5 1812 depends on CPU_MIPS32_R2 1813 help 1814 Choose this option to build a kernel for release 2 or later of the 1815 MIPS32 architecture including features from release 5 such as 1816 support for Extended Physical Addressing (XPA). 1817 1818config CPU_MIPS32_R5_XPA 1819 bool "Extended Physical Addressing (XPA)" 1820 depends on CPU_MIPS32_R5_FEATURES 1821 depends on !EVA 1822 depends on !PAGE_SIZE_4KB 1823 depends on SYS_SUPPORTS_HIGHMEM 1824 select XPA 1825 select HIGHMEM 1826 select PHYS_ADDR_T_64BIT 1827 default n 1828 help 1829 Choose this option if you want to enable the Extended Physical 1830 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1831 benefit is to increase physical addressing equal to or greater 1832 than 40 bits. Note that this has the side effect of turning on 1833 64-bit addressing which in turn makes the PTEs 64-bit in size. 1834 If unsure, say 'N' here. 1835 1836if CPU_LOONGSON2F 1837config CPU_NOP_WORKAROUNDS 1838 bool 1839 1840config CPU_JUMP_WORKAROUNDS 1841 bool 1842 1843config CPU_LOONGSON2F_WORKAROUNDS 1844 bool "Loongson 2F Workarounds" 1845 default y 1846 select CPU_NOP_WORKAROUNDS 1847 select CPU_JUMP_WORKAROUNDS 1848 help 1849 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1850 require workarounds. Without workarounds the system may hang 1851 unexpectedly. For more information please refer to the gas 1852 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1853 1854 Loongson 2F03 and later have fixed these issues and no workarounds 1855 are needed. The workarounds have no significant side effect on them 1856 but may decrease the performance of the system so this option should 1857 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1858 systems. 1859 1860 If unsure, please say Y. 1861endif # CPU_LOONGSON2F 1862 1863config SYS_SUPPORTS_ZBOOT 1864 bool 1865 select HAVE_KERNEL_GZIP 1866 select HAVE_KERNEL_BZIP2 1867 select HAVE_KERNEL_LZ4 1868 select HAVE_KERNEL_LZMA 1869 select HAVE_KERNEL_LZO 1870 select HAVE_KERNEL_XZ 1871 1872config SYS_SUPPORTS_ZBOOT_UART16550 1873 bool 1874 select SYS_SUPPORTS_ZBOOT 1875 1876config SYS_SUPPORTS_ZBOOT_UART_PROM 1877 bool 1878 select SYS_SUPPORTS_ZBOOT 1879 1880config CPU_LOONGSON2 1881 bool 1882 select CPU_SUPPORTS_32BIT_KERNEL 1883 select CPU_SUPPORTS_64BIT_KERNEL 1884 select CPU_SUPPORTS_HIGHMEM 1885 select CPU_SUPPORTS_HUGEPAGES 1886 select ARCH_HAS_PHYS_TO_DMA 1887 select CPU_HAS_LOAD_STORE_LR 1888 1889config CPU_LOONGSON1 1890 bool 1891 select CPU_MIPS32 1892 select CPU_MIPSR2 1893 select CPU_HAS_PREFETCH 1894 select CPU_HAS_LOAD_STORE_LR 1895 select CPU_SUPPORTS_32BIT_KERNEL 1896 select CPU_SUPPORTS_HIGHMEM 1897 select CPU_SUPPORTS_CPUFREQ 1898 1899config CPU_BMIPS32_3300 1900 select SMP_UP if SMP 1901 bool 1902 1903config CPU_BMIPS4350 1904 bool 1905 select SYS_SUPPORTS_SMP 1906 select SYS_SUPPORTS_HOTPLUG_CPU 1907 1908config CPU_BMIPS4380 1909 bool 1910 select MIPS_L1_CACHE_SHIFT_6 1911 select SYS_SUPPORTS_SMP 1912 select SYS_SUPPORTS_HOTPLUG_CPU 1913 select CPU_HAS_RIXI 1914 1915config CPU_BMIPS5000 1916 bool 1917 select MIPS_CPU_SCACHE 1918 select MIPS_L1_CACHE_SHIFT_7 1919 select SYS_SUPPORTS_SMP 1920 select SYS_SUPPORTS_HOTPLUG_CPU 1921 select CPU_HAS_RIXI 1922 1923config SYS_HAS_CPU_LOONGSON3 1924 bool 1925 select CPU_SUPPORTS_CPUFREQ 1926 select CPU_HAS_RIXI 1927 1928config SYS_HAS_CPU_LOONGSON2E 1929 bool 1930 1931config SYS_HAS_CPU_LOONGSON2F 1932 bool 1933 select CPU_SUPPORTS_CPUFREQ 1934 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1935 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1936 1937config SYS_HAS_CPU_LOONGSON1B 1938 bool 1939 1940config SYS_HAS_CPU_LOONGSON1C 1941 bool 1942 1943config SYS_HAS_CPU_MIPS32_R1 1944 bool 1945 1946config SYS_HAS_CPU_MIPS32_R2 1947 bool 1948 1949config SYS_HAS_CPU_MIPS32_R3_5 1950 bool 1951 1952config SYS_HAS_CPU_MIPS32_R5 1953 bool 1954 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1955 1956config SYS_HAS_CPU_MIPS32_R6 1957 bool 1958 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1959 1960config SYS_HAS_CPU_MIPS64_R1 1961 bool 1962 1963config SYS_HAS_CPU_MIPS64_R2 1964 bool 1965 1966config SYS_HAS_CPU_MIPS64_R6 1967 bool 1968 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1969 1970config SYS_HAS_CPU_R3000 1971 bool 1972 1973config SYS_HAS_CPU_TX39XX 1974 bool 1975 1976config SYS_HAS_CPU_VR41XX 1977 bool 1978 1979config SYS_HAS_CPU_R4300 1980 bool 1981 1982config SYS_HAS_CPU_R4X00 1983 bool 1984 1985config SYS_HAS_CPU_TX49XX 1986 bool 1987 1988config SYS_HAS_CPU_R5000 1989 bool 1990 1991config SYS_HAS_CPU_R5432 1992 bool 1993 1994config SYS_HAS_CPU_R5500 1995 bool 1996 1997config SYS_HAS_CPU_NEVADA 1998 bool 1999 2000config SYS_HAS_CPU_R8000 2001 bool 2002 2003config SYS_HAS_CPU_R10000 2004 bool 2005 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2006 2007config SYS_HAS_CPU_RM7000 2008 bool 2009 2010config SYS_HAS_CPU_SB1 2011 bool 2012 2013config SYS_HAS_CPU_CAVIUM_OCTEON 2014 bool 2015 2016config SYS_HAS_CPU_BMIPS 2017 bool 2018 2019config SYS_HAS_CPU_BMIPS32_3300 2020 bool 2021 select SYS_HAS_CPU_BMIPS 2022 2023config SYS_HAS_CPU_BMIPS4350 2024 bool 2025 select SYS_HAS_CPU_BMIPS 2026 2027config SYS_HAS_CPU_BMIPS4380 2028 bool 2029 select SYS_HAS_CPU_BMIPS 2030 2031config SYS_HAS_CPU_BMIPS5000 2032 bool 2033 select SYS_HAS_CPU_BMIPS 2034 select ARCH_HAS_SYNC_DMA_FOR_CPU 2035 2036config SYS_HAS_CPU_XLR 2037 bool 2038 2039config SYS_HAS_CPU_XLP 2040 bool 2041 2042# 2043# CPU may reorder R->R, R->W, W->R, W->W 2044# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2045# 2046config WEAK_ORDERING 2047 bool 2048 2049# 2050# CPU may reorder reads and writes beyond LL/SC 2051# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2052# 2053config WEAK_REORDERING_BEYOND_LLSC 2054 bool 2055endmenu 2056 2057# 2058# These two indicate any level of the MIPS32 and MIPS64 architecture 2059# 2060config CPU_MIPS32 2061 bool 2062 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2063 2064config CPU_MIPS64 2065 bool 2066 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2067 2068# 2069# These indicate the revision of the architecture 2070# 2071config CPU_MIPSR1 2072 bool 2073 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2074 2075config CPU_MIPSR2 2076 bool 2077 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2078 select CPU_HAS_RIXI 2079 select MIPS_SPRAM 2080 2081config CPU_MIPSR6 2082 bool 2083 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2084 select CPU_HAS_RIXI 2085 select HAVE_ARCH_BITREVERSE 2086 select MIPS_ASID_BITS_VARIABLE 2087 select MIPS_CRC_SUPPORT 2088 select MIPS_SPRAM 2089 2090config TARGET_ISA_REV 2091 int 2092 default 1 if CPU_MIPSR1 2093 default 2 if CPU_MIPSR2 2094 default 6 if CPU_MIPSR6 2095 default 0 2096 help 2097 Reflects the ISA revision being targeted by the kernel build. This 2098 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2099 2100config EVA 2101 bool 2102 2103config XPA 2104 bool 2105 2106config SYS_SUPPORTS_32BIT_KERNEL 2107 bool 2108config SYS_SUPPORTS_64BIT_KERNEL 2109 bool 2110config CPU_SUPPORTS_32BIT_KERNEL 2111 bool 2112config CPU_SUPPORTS_64BIT_KERNEL 2113 bool 2114config CPU_SUPPORTS_CPUFREQ 2115 bool 2116config CPU_SUPPORTS_ADDRWINCFG 2117 bool 2118config CPU_SUPPORTS_HUGEPAGES 2119 bool 2120config CPU_SUPPORTS_UNCACHED_ACCELERATED 2121 bool 2122config MIPS_PGD_C0_CONTEXT 2123 bool 2124 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2125 2126# 2127# Set to y for ptrace access to watch registers. 2128# 2129config HARDWARE_WATCHPOINTS 2130 bool 2131 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2132 2133menu "Kernel type" 2134 2135choice 2136 prompt "Kernel code model" 2137 help 2138 You should only select this option if you have a workload that 2139 actually benefits from 64-bit processing or if your machine has 2140 large memory. You will only be presented a single option in this 2141 menu if your system does not support both 32-bit and 64-bit kernels. 2142 2143config 32BIT 2144 bool "32-bit kernel" 2145 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2146 select TRAD_SIGNALS 2147 help 2148 Select this option if you want to build a 32-bit kernel. 2149 2150config 64BIT 2151 bool "64-bit kernel" 2152 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2153 help 2154 Select this option if you want to build a 64-bit kernel. 2155 2156endchoice 2157 2158config KVM_GUEST 2159 bool "KVM Guest Kernel" 2160 depends on BROKEN_ON_SMP 2161 help 2162 Select this option if building a guest kernel for KVM (Trap & Emulate) 2163 mode. 2164 2165config KVM_GUEST_TIMER_FREQ 2166 int "Count/Compare Timer Frequency (MHz)" 2167 depends on KVM_GUEST 2168 default 100 2169 help 2170 Set this to non-zero if building a guest kernel for KVM to skip RTC 2171 emulation when determining guest CPU Frequency. Instead, the guest's 2172 timer frequency is specified directly. 2173 2174config MIPS_VA_BITS_48 2175 bool "48 bits virtual memory" 2176 depends on 64BIT 2177 help 2178 Support a maximum at least 48 bits of application virtual 2179 memory. Default is 40 bits or less, depending on the CPU. 2180 For page sizes 16k and above, this option results in a small 2181 memory overhead for page tables. For 4k page size, a fourth 2182 level of page tables is added which imposes both a memory 2183 overhead as well as slower TLB fault handling. 2184 2185 If unsure, say N. 2186 2187choice 2188 prompt "Kernel page size" 2189 default PAGE_SIZE_4KB 2190 2191config PAGE_SIZE_4KB 2192 bool "4kB" 2193 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2194 help 2195 This option select the standard 4kB Linux page size. On some 2196 R3000-family processors this is the only available page size. Using 2197 4kB page size will minimize memory consumption and is therefore 2198 recommended for low memory systems. 2199 2200config PAGE_SIZE_8KB 2201 bool "8kB" 2202 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2203 depends on !MIPS_VA_BITS_48 2204 help 2205 Using 8kB page size will result in higher performance kernel at 2206 the price of higher memory consumption. This option is available 2207 only on R8000 and cnMIPS processors. Note that you will need a 2208 suitable Linux distribution to support this. 2209 2210config PAGE_SIZE_16KB 2211 bool "16kB" 2212 depends on !CPU_R3000 && !CPU_TX39XX 2213 help 2214 Using 16kB page size will result in higher performance kernel at 2215 the price of higher memory consumption. This option is available on 2216 all non-R3000 family processors. Note that you will need a suitable 2217 Linux distribution to support this. 2218 2219config PAGE_SIZE_32KB 2220 bool "32kB" 2221 depends on CPU_CAVIUM_OCTEON 2222 depends on !MIPS_VA_BITS_48 2223 help 2224 Using 32kB page size will result in higher performance kernel at 2225 the price of higher memory consumption. This option is available 2226 only on cnMIPS cores. Note that you will need a suitable Linux 2227 distribution to support this. 2228 2229config PAGE_SIZE_64KB 2230 bool "64kB" 2231 depends on !CPU_R3000 && !CPU_TX39XX 2232 help 2233 Using 64kB page size will result in higher performance kernel at 2234 the price of higher memory consumption. This option is available on 2235 all non-R3000 family processor. Not that at the time of this 2236 writing this option is still high experimental. 2237 2238endchoice 2239 2240config FORCE_MAX_ZONEORDER 2241 int "Maximum zone order" 2242 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2243 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2244 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2245 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2246 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2247 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2248 range 11 64 2249 default "11" 2250 help 2251 The kernel memory allocator divides physically contiguous memory 2252 blocks into "zones", where each zone is a power of two number of 2253 pages. This option selects the largest power of two that the kernel 2254 keeps in the memory allocator. If you need to allocate very large 2255 blocks of physically contiguous memory, then you may need to 2256 increase this value. 2257 2258 This config option is actually maximum order plus one. For example, 2259 a value of 11 means that the largest free memory block is 2^10 pages. 2260 2261 The page size is not necessarily 4KB. Keep this in mind 2262 when choosing a value for this option. 2263 2264config BOARD_SCACHE 2265 bool 2266 2267config IP22_CPU_SCACHE 2268 bool 2269 select BOARD_SCACHE 2270 2271# 2272# Support for a MIPS32 / MIPS64 style S-caches 2273# 2274config MIPS_CPU_SCACHE 2275 bool 2276 select BOARD_SCACHE 2277 2278config R5000_CPU_SCACHE 2279 bool 2280 select BOARD_SCACHE 2281 2282config RM7000_CPU_SCACHE 2283 bool 2284 select BOARD_SCACHE 2285 2286config SIBYTE_DMA_PAGEOPS 2287 bool "Use DMA to clear/copy pages" 2288 depends on CPU_SB1 2289 help 2290 Instead of using the CPU to zero and copy pages, use a Data Mover 2291 channel. These DMA channels are otherwise unused by the standard 2292 SiByte Linux port. Seems to give a small performance benefit. 2293 2294config CPU_HAS_PREFETCH 2295 bool 2296 2297config CPU_GENERIC_DUMP_TLB 2298 bool 2299 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2300 2301config MIPS_FP_SUPPORT 2302 bool "Floating Point support" if EXPERT 2303 default y 2304 help 2305 Select y to include support for floating point in the kernel 2306 including initialization of FPU hardware, FP context save & restore 2307 and emulation of an FPU where necessary. Without this support any 2308 userland program attempting to use floating point instructions will 2309 receive a SIGILL. 2310 2311 If you know that your userland will not attempt to use floating point 2312 instructions then you can say n here to shrink the kernel a little. 2313 2314 If unsure, say y. 2315 2316config CPU_R2300_FPU 2317 bool 2318 depends on MIPS_FP_SUPPORT 2319 default y if CPU_R3000 || CPU_TX39XX 2320 2321config CPU_R4K_FPU 2322 bool 2323 depends on MIPS_FP_SUPPORT 2324 default y if !CPU_R2300_FPU 2325 2326config CPU_R4K_CACHE_TLB 2327 bool 2328 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2329 2330config MIPS_MT_SMP 2331 bool "MIPS MT SMP support (1 TC on each available VPE)" 2332 default y 2333 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2334 select CPU_MIPSR2_IRQ_VI 2335 select CPU_MIPSR2_IRQ_EI 2336 select SYNC_R4K 2337 select MIPS_MT 2338 select SMP 2339 select SMP_UP 2340 select SYS_SUPPORTS_SMP 2341 select SYS_SUPPORTS_SCHED_SMT 2342 select MIPS_PERF_SHARED_TC_COUNTERS 2343 help 2344 This is a kernel model which is known as SMVP. This is supported 2345 on cores with the MT ASE and uses the available VPEs to implement 2346 virtual processors which supports SMP. This is equivalent to the 2347 Intel Hyperthreading feature. For further information go to 2348 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2349 2350config MIPS_MT 2351 bool 2352 2353config SCHED_SMT 2354 bool "SMT (multithreading) scheduler support" 2355 depends on SYS_SUPPORTS_SCHED_SMT 2356 default n 2357 help 2358 SMT scheduler support improves the CPU scheduler's decision making 2359 when dealing with MIPS MT enabled cores at a cost of slightly 2360 increased overhead in some places. If unsure say N here. 2361 2362config SYS_SUPPORTS_SCHED_SMT 2363 bool 2364 2365config SYS_SUPPORTS_MULTITHREADING 2366 bool 2367 2368config MIPS_MT_FPAFF 2369 bool "Dynamic FPU affinity for FP-intensive threads" 2370 default y 2371 depends on MIPS_MT_SMP 2372 2373config MIPSR2_TO_R6_EMULATOR 2374 bool "MIPS R2-to-R6 emulator" 2375 depends on CPU_MIPSR6 2376 depends on MIPS_FP_SUPPORT 2377 default y 2378 help 2379 Choose this option if you want to run non-R6 MIPS userland code. 2380 Even if you say 'Y' here, the emulator will still be disabled by 2381 default. You can enable it using the 'mipsr2emu' kernel option. 2382 The only reason this is a build-time option is to save ~14K from the 2383 final kernel image. 2384 2385config SYS_SUPPORTS_VPE_LOADER 2386 bool 2387 depends on SYS_SUPPORTS_MULTITHREADING 2388 help 2389 Indicates that the platform supports the VPE loader, and provides 2390 physical_memsize. 2391 2392config MIPS_VPE_LOADER 2393 bool "VPE loader support." 2394 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2395 select CPU_MIPSR2_IRQ_VI 2396 select CPU_MIPSR2_IRQ_EI 2397 select MIPS_MT 2398 help 2399 Includes a loader for loading an elf relocatable object 2400 onto another VPE and running it. 2401 2402config MIPS_VPE_LOADER_CMP 2403 bool 2404 default "y" 2405 depends on MIPS_VPE_LOADER && MIPS_CMP 2406 2407config MIPS_VPE_LOADER_MT 2408 bool 2409 default "y" 2410 depends on MIPS_VPE_LOADER && !MIPS_CMP 2411 2412config MIPS_VPE_LOADER_TOM 2413 bool "Load VPE program into memory hidden from linux" 2414 depends on MIPS_VPE_LOADER 2415 default y 2416 help 2417 The loader can use memory that is present but has been hidden from 2418 Linux using the kernel command line option "mem=xxMB". It's up to 2419 you to ensure the amount you put in the option and the space your 2420 program requires is less or equal to the amount physically present. 2421 2422config MIPS_VPE_APSP_API 2423 bool "Enable support for AP/SP API (RTLX)" 2424 depends on MIPS_VPE_LOADER 2425 2426config MIPS_VPE_APSP_API_CMP 2427 bool 2428 default "y" 2429 depends on MIPS_VPE_APSP_API && MIPS_CMP 2430 2431config MIPS_VPE_APSP_API_MT 2432 bool 2433 default "y" 2434 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2435 2436config MIPS_CMP 2437 bool "MIPS CMP framework support (DEPRECATED)" 2438 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2439 select SMP 2440 select SYNC_R4K 2441 select SYS_SUPPORTS_SMP 2442 select WEAK_ORDERING 2443 default n 2444 help 2445 Select this if you are using a bootloader which implements the "CMP 2446 framework" protocol (ie. YAMON) and want your kernel to make use of 2447 its ability to start secondary CPUs. 2448 2449 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2450 instead of this. 2451 2452config MIPS_CPS 2453 bool "MIPS Coherent Processing System support" 2454 depends on SYS_SUPPORTS_MIPS_CPS 2455 select MIPS_CM 2456 select MIPS_CPS_PM if HOTPLUG_CPU 2457 select SMP 2458 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2459 select SYS_SUPPORTS_HOTPLUG_CPU 2460 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2461 select SYS_SUPPORTS_SMP 2462 select WEAK_ORDERING 2463 help 2464 Select this if you wish to run an SMP kernel across multiple cores 2465 within a MIPS Coherent Processing System. When this option is 2466 enabled the kernel will probe for other cores and boot them with 2467 no external assistance. It is safe to enable this when hardware 2468 support is unavailable. 2469 2470config MIPS_CPS_PM 2471 depends on MIPS_CPS 2472 bool 2473 2474config MIPS_CM 2475 bool 2476 select MIPS_CPC 2477 2478config MIPS_CPC 2479 bool 2480 2481config SB1_PASS_2_WORKAROUNDS 2482 bool 2483 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2484 default y 2485 2486config SB1_PASS_2_1_WORKAROUNDS 2487 bool 2488 depends on CPU_SB1 && CPU_SB1_PASS_2 2489 default y 2490 2491choice 2492 prompt "SmartMIPS or microMIPS ASE support" 2493 2494config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2495 bool "None" 2496 help 2497 Select this if you want neither microMIPS nor SmartMIPS support 2498 2499config CPU_HAS_SMARTMIPS 2500 depends on SYS_SUPPORTS_SMARTMIPS 2501 bool "SmartMIPS" 2502 help 2503 SmartMIPS is a extension of the MIPS32 architecture aimed at 2504 increased security at both hardware and software level for 2505 smartcards. Enabling this option will allow proper use of the 2506 SmartMIPS instructions by Linux applications. However a kernel with 2507 this option will not work on a MIPS core without SmartMIPS core. If 2508 you don't know you probably don't have SmartMIPS and should say N 2509 here. 2510 2511config CPU_MICROMIPS 2512 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2513 bool "microMIPS" 2514 help 2515 When this option is enabled the kernel will be built using the 2516 microMIPS ISA 2517 2518endchoice 2519 2520config CPU_HAS_MSA 2521 bool "Support for the MIPS SIMD Architecture" 2522 depends on CPU_SUPPORTS_MSA 2523 depends on MIPS_FP_SUPPORT 2524 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2525 help 2526 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2527 and a set of SIMD instructions to operate on them. When this option 2528 is enabled the kernel will support allocating & switching MSA 2529 vector register contexts. If you know that your kernel will only be 2530 running on CPUs which do not support MSA or that your userland will 2531 not be making use of it then you may wish to say N here to reduce 2532 the size & complexity of your kernel. 2533 2534 If unsure, say Y. 2535 2536config CPU_HAS_WB 2537 bool 2538 2539config XKS01 2540 bool 2541 2542config CPU_HAS_RIXI 2543 bool 2544 2545config CPU_HAS_LOAD_STORE_LR 2546 bool 2547 help 2548 CPU has support for unaligned load and store instructions: 2549 LWL, LWR, SWL, SWR (Load/store word left/right). 2550 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2551 2552# 2553# Vectored interrupt mode is an R2 feature 2554# 2555config CPU_MIPSR2_IRQ_VI 2556 bool 2557 2558# 2559# Extended interrupt mode is an R2 feature 2560# 2561config CPU_MIPSR2_IRQ_EI 2562 bool 2563 2564config CPU_HAS_SYNC 2565 bool 2566 depends on !CPU_R3000 2567 default y 2568 2569# 2570# CPU non-features 2571# 2572config CPU_DADDI_WORKAROUNDS 2573 bool 2574 2575config CPU_R4000_WORKAROUNDS 2576 bool 2577 select CPU_R4400_WORKAROUNDS 2578 2579config CPU_R4400_WORKAROUNDS 2580 bool 2581 2582config MIPS_ASID_SHIFT 2583 int 2584 default 6 if CPU_R3000 || CPU_TX39XX 2585 default 4 if CPU_R8000 2586 default 0 2587 2588config MIPS_ASID_BITS 2589 int 2590 default 0 if MIPS_ASID_BITS_VARIABLE 2591 default 6 if CPU_R3000 || CPU_TX39XX 2592 default 8 2593 2594config MIPS_ASID_BITS_VARIABLE 2595 bool 2596 2597config MIPS_CRC_SUPPORT 2598 bool 2599 2600# 2601# - Highmem only makes sense for the 32-bit kernel. 2602# - The current highmem code will only work properly on physically indexed 2603# caches such as R3000, SB1, R7000 or those that look like they're virtually 2604# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2605# moment we protect the user and offer the highmem option only on machines 2606# where it's known to be safe. This will not offer highmem on a few systems 2607# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2608# indexed CPUs but we're playing safe. 2609# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2610# know they might have memory configurations that could make use of highmem 2611# support. 2612# 2613config HIGHMEM 2614 bool "High Memory Support" 2615 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2616 2617config CPU_SUPPORTS_HIGHMEM 2618 bool 2619 2620config SYS_SUPPORTS_HIGHMEM 2621 bool 2622 2623config SYS_SUPPORTS_SMARTMIPS 2624 bool 2625 2626config SYS_SUPPORTS_MICROMIPS 2627 bool 2628 2629config SYS_SUPPORTS_MIPS16 2630 bool 2631 help 2632 This option must be set if a kernel might be executed on a MIPS16- 2633 enabled CPU even if MIPS16 is not actually being used. In other 2634 words, it makes the kernel MIPS16-tolerant. 2635 2636config CPU_SUPPORTS_MSA 2637 bool 2638 2639config ARCH_FLATMEM_ENABLE 2640 def_bool y 2641 depends on !NUMA && !CPU_LOONGSON2 2642 2643config ARCH_DISCONTIGMEM_ENABLE 2644 bool 2645 default y if SGI_IP27 2646 help 2647 Say Y to support efficient handling of discontiguous physical memory, 2648 for architectures which are either NUMA (Non-Uniform Memory Access) 2649 or have huge holes in the physical address space for other reasons. 2650 See <file:Documentation/vm/numa.rst> for more. 2651 2652config ARCH_SPARSEMEM_ENABLE 2653 bool 2654 select SPARSEMEM_STATIC 2655 2656config NUMA 2657 bool "NUMA Support" 2658 depends on SYS_SUPPORTS_NUMA 2659 help 2660 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2661 Access). This option improves performance on systems with more 2662 than two nodes; on two node systems it is generally better to 2663 leave it disabled; on single node systems disable this option 2664 disabled. 2665 2666config SYS_SUPPORTS_NUMA 2667 bool 2668 2669config RELOCATABLE 2670 bool "Relocatable kernel" 2671 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2672 help 2673 This builds a kernel image that retains relocation information 2674 so it can be loaded someplace besides the default 1MB. 2675 The relocations make the kernel binary about 15% larger, 2676 but are discarded at runtime 2677 2678config RELOCATION_TABLE_SIZE 2679 hex "Relocation table size" 2680 depends on RELOCATABLE 2681 range 0x0 0x01000000 2682 default "0x00100000" 2683 ---help--- 2684 A table of relocation data will be appended to the kernel binary 2685 and parsed at boot to fix up the relocated kernel. 2686 2687 This option allows the amount of space reserved for the table to be 2688 adjusted, although the default of 1Mb should be ok in most cases. 2689 2690 The build will fail and a valid size suggested if this is too small. 2691 2692 If unsure, leave at the default value. 2693 2694config RANDOMIZE_BASE 2695 bool "Randomize the address of the kernel image" 2696 depends on RELOCATABLE 2697 ---help--- 2698 Randomizes the physical and virtual address at which the 2699 kernel image is loaded, as a security feature that 2700 deters exploit attempts relying on knowledge of the location 2701 of kernel internals. 2702 2703 Entropy is generated using any coprocessor 0 registers available. 2704 2705 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2706 2707 If unsure, say N. 2708 2709config RANDOMIZE_BASE_MAX_OFFSET 2710 hex "Maximum kASLR offset" if EXPERT 2711 depends on RANDOMIZE_BASE 2712 range 0x0 0x40000000 if EVA || 64BIT 2713 range 0x0 0x08000000 2714 default "0x01000000" 2715 ---help--- 2716 When kASLR is active, this provides the maximum offset that will 2717 be applied to the kernel image. It should be set according to the 2718 amount of physical RAM available in the target system minus 2719 PHYSICAL_START and must be a power of 2. 2720 2721 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2722 EVA or 64-bit. The default is 16Mb. 2723 2724config NODES_SHIFT 2725 int 2726 default "6" 2727 depends on NEED_MULTIPLE_NODES 2728 2729config HW_PERF_EVENTS 2730 bool "Enable hardware performance counter support for perf events" 2731 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2732 default y 2733 help 2734 Enable hardware performance counter support for perf events. If 2735 disabled, perf events will use software events only. 2736 2737config SMP 2738 bool "Multi-Processing support" 2739 depends on SYS_SUPPORTS_SMP 2740 help 2741 This enables support for systems with more than one CPU. If you have 2742 a system with only one CPU, say N. If you have a system with more 2743 than one CPU, say Y. 2744 2745 If you say N here, the kernel will run on uni- and multiprocessor 2746 machines, but will use only one CPU of a multiprocessor machine. If 2747 you say Y here, the kernel will run on many, but not all, 2748 uniprocessor machines. On a uniprocessor machine, the kernel 2749 will run faster if you say N here. 2750 2751 People using multiprocessor machines who say Y here should also say 2752 Y to "Enhanced Real Time Clock Support", below. 2753 2754 See also the SMP-HOWTO available at 2755 <http://www.tldp.org/docs.html#howto>. 2756 2757 If you don't know what to do here, say N. 2758 2759config HOTPLUG_CPU 2760 bool "Support for hot-pluggable CPUs" 2761 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2762 help 2763 Say Y here to allow turning CPUs off and on. CPUs can be 2764 controlled through /sys/devices/system/cpu. 2765 (Note: power management support will enable this option 2766 automatically on SMP systems. ) 2767 Say N if you want to disable CPU hotplug. 2768 2769config SMP_UP 2770 bool 2771 2772config SYS_SUPPORTS_MIPS_CMP 2773 bool 2774 2775config SYS_SUPPORTS_MIPS_CPS 2776 bool 2777 2778config SYS_SUPPORTS_SMP 2779 bool 2780 2781config NR_CPUS_DEFAULT_4 2782 bool 2783 2784config NR_CPUS_DEFAULT_8 2785 bool 2786 2787config NR_CPUS_DEFAULT_16 2788 bool 2789 2790config NR_CPUS_DEFAULT_32 2791 bool 2792 2793config NR_CPUS_DEFAULT_64 2794 bool 2795 2796config NR_CPUS 2797 int "Maximum number of CPUs (2-256)" 2798 range 2 256 2799 depends on SMP 2800 default "4" if NR_CPUS_DEFAULT_4 2801 default "8" if NR_CPUS_DEFAULT_8 2802 default "16" if NR_CPUS_DEFAULT_16 2803 default "32" if NR_CPUS_DEFAULT_32 2804 default "64" if NR_CPUS_DEFAULT_64 2805 help 2806 This allows you to specify the maximum number of CPUs which this 2807 kernel will support. The maximum supported value is 32 for 32-bit 2808 kernel and 64 for 64-bit kernels; the minimum value which makes 2809 sense is 1 for Qemu (useful only for kernel debugging purposes) 2810 and 2 for all others. 2811 2812 This is purely to save memory - each supported CPU adds 2813 approximately eight kilobytes to the kernel image. For best 2814 performance should round up your number of processors to the next 2815 power of two. 2816 2817config MIPS_PERF_SHARED_TC_COUNTERS 2818 bool 2819 2820config MIPS_NR_CPU_NR_MAP_1024 2821 bool 2822 2823config MIPS_NR_CPU_NR_MAP 2824 int 2825 depends on SMP 2826 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2827 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2828 2829# 2830# Timer Interrupt Frequency Configuration 2831# 2832 2833choice 2834 prompt "Timer frequency" 2835 default HZ_250 2836 help 2837 Allows the configuration of the timer frequency. 2838 2839 config HZ_24 2840 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2841 2842 config HZ_48 2843 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2844 2845 config HZ_100 2846 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2847 2848 config HZ_128 2849 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2850 2851 config HZ_250 2852 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2853 2854 config HZ_256 2855 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2856 2857 config HZ_1000 2858 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2859 2860 config HZ_1024 2861 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2862 2863endchoice 2864 2865config SYS_SUPPORTS_24HZ 2866 bool 2867 2868config SYS_SUPPORTS_48HZ 2869 bool 2870 2871config SYS_SUPPORTS_100HZ 2872 bool 2873 2874config SYS_SUPPORTS_128HZ 2875 bool 2876 2877config SYS_SUPPORTS_250HZ 2878 bool 2879 2880config SYS_SUPPORTS_256HZ 2881 bool 2882 2883config SYS_SUPPORTS_1000HZ 2884 bool 2885 2886config SYS_SUPPORTS_1024HZ 2887 bool 2888 2889config SYS_SUPPORTS_ARBIT_HZ 2890 bool 2891 default y if !SYS_SUPPORTS_24HZ && \ 2892 !SYS_SUPPORTS_48HZ && \ 2893 !SYS_SUPPORTS_100HZ && \ 2894 !SYS_SUPPORTS_128HZ && \ 2895 !SYS_SUPPORTS_250HZ && \ 2896 !SYS_SUPPORTS_256HZ && \ 2897 !SYS_SUPPORTS_1000HZ && \ 2898 !SYS_SUPPORTS_1024HZ 2899 2900config HZ 2901 int 2902 default 24 if HZ_24 2903 default 48 if HZ_48 2904 default 100 if HZ_100 2905 default 128 if HZ_128 2906 default 250 if HZ_250 2907 default 256 if HZ_256 2908 default 1000 if HZ_1000 2909 default 1024 if HZ_1024 2910 2911config SCHED_HRTICK 2912 def_bool HIGH_RES_TIMERS 2913 2914config KEXEC 2915 bool "Kexec system call" 2916 select KEXEC_CORE 2917 help 2918 kexec is a system call that implements the ability to shutdown your 2919 current kernel, and to start another kernel. It is like a reboot 2920 but it is independent of the system firmware. And like a reboot 2921 you can start any kernel with it, not just Linux. 2922 2923 The name comes from the similarity to the exec system call. 2924 2925 It is an ongoing process to be certain the hardware in a machine 2926 is properly shutdown, so do not be surprised if this code does not 2927 initially work for you. As of this writing the exact hardware 2928 interface is strongly in flux, so no good recommendation can be 2929 made. 2930 2931config CRASH_DUMP 2932 bool "Kernel crash dumps" 2933 help 2934 Generate crash dump after being started by kexec. 2935 This should be normally only set in special crash dump kernels 2936 which are loaded in the main kernel with kexec-tools into 2937 a specially reserved region and then later executed after 2938 a crash by kdump/kexec. The crash dump kernel must be compiled 2939 to a memory address not used by the main kernel or firmware using 2940 PHYSICAL_START. 2941 2942config PHYSICAL_START 2943 hex "Physical address where the kernel is loaded" 2944 default "0xffffffff84000000" 2945 depends on CRASH_DUMP 2946 help 2947 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2948 If you plan to use kernel for capturing the crash dump change 2949 this value to start of the reserved region (the "X" value as 2950 specified in the "crashkernel=YM@XM" command line boot parameter 2951 passed to the panic-ed kernel). 2952 2953config SECCOMP 2954 bool "Enable seccomp to safely compute untrusted bytecode" 2955 depends on PROC_FS 2956 default y 2957 help 2958 This kernel feature is useful for number crunching applications 2959 that may need to compute untrusted bytecode during their 2960 execution. By using pipes or other transports made available to 2961 the process as file descriptors supporting the read/write 2962 syscalls, it's possible to isolate those applications in 2963 their own address space using seccomp. Once seccomp is 2964 enabled via /proc/<pid>/seccomp, it cannot be disabled 2965 and the task is only allowed to execute a few safe syscalls 2966 defined by each seccomp mode. 2967 2968 If unsure, say Y. Only embedded should say N here. 2969 2970config MIPS_O32_FP64_SUPPORT 2971 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2972 depends on 32BIT || MIPS32_O32 2973 help 2974 When this is enabled, the kernel will support use of 64-bit floating 2975 point registers with binaries using the O32 ABI along with the 2976 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2977 32-bit MIPS systems this support is at the cost of increasing the 2978 size and complexity of the compiled FPU emulator. Thus if you are 2979 running a MIPS32 system and know that none of your userland binaries 2980 will require 64-bit floating point, you may wish to reduce the size 2981 of your kernel & potentially improve FP emulation performance by 2982 saying N here. 2983 2984 Although binutils currently supports use of this flag the details 2985 concerning its effect upon the O32 ABI in userland are still being 2986 worked on. In order to avoid userland becoming dependant upon current 2987 behaviour before the details have been finalised, this option should 2988 be considered experimental and only enabled by those working upon 2989 said details. 2990 2991 If unsure, say N. 2992 2993config USE_OF 2994 bool 2995 select OF 2996 select OF_EARLY_FLATTREE 2997 select IRQ_DOMAIN 2998 2999config UHI_BOOT 3000 bool 3001 3002config BUILTIN_DTB 3003 bool 3004 3005choice 3006 prompt "Kernel appended dtb support" if USE_OF 3007 default MIPS_NO_APPENDED_DTB 3008 3009 config MIPS_NO_APPENDED_DTB 3010 bool "None" 3011 help 3012 Do not enable appended dtb support. 3013 3014 config MIPS_ELF_APPENDED_DTB 3015 bool "vmlinux" 3016 help 3017 With this option, the boot code will look for a device tree binary 3018 DTB) included in the vmlinux ELF section .appended_dtb. By default 3019 it is empty and the DTB can be appended using binutils command 3020 objcopy: 3021 3022 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3023 3024 This is meant as a backward compatiblity convenience for those 3025 systems with a bootloader that can't be upgraded to accommodate 3026 the documented boot protocol using a device tree. 3027 3028 config MIPS_RAW_APPENDED_DTB 3029 bool "vmlinux.bin or vmlinuz.bin" 3030 help 3031 With this option, the boot code will look for a device tree binary 3032 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3033 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3034 3035 This is meant as a backward compatibility convenience for those 3036 systems with a bootloader that can't be upgraded to accommodate 3037 the documented boot protocol using a device tree. 3038 3039 Beware that there is very little in terms of protection against 3040 this option being confused by leftover garbage in memory that might 3041 look like a DTB header after a reboot if no actual DTB is appended 3042 to vmlinux.bin. Do not leave this option active in a production kernel 3043 if you don't intend to always append a DTB. 3044endchoice 3045 3046choice 3047 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3048 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3049 !MIPS_MALTA && \ 3050 !CAVIUM_OCTEON_SOC 3051 default MIPS_CMDLINE_FROM_BOOTLOADER 3052 3053 config MIPS_CMDLINE_FROM_DTB 3054 depends on USE_OF 3055 bool "Dtb kernel arguments if available" 3056 3057 config MIPS_CMDLINE_DTB_EXTEND 3058 depends on USE_OF 3059 bool "Extend dtb kernel arguments with bootloader arguments" 3060 3061 config MIPS_CMDLINE_FROM_BOOTLOADER 3062 bool "Bootloader kernel arguments if available" 3063 3064 config MIPS_CMDLINE_BUILTIN_EXTEND 3065 depends on CMDLINE_BOOL 3066 bool "Extend builtin kernel arguments with bootloader arguments" 3067endchoice 3068 3069endmenu 3070 3071config LOCKDEP_SUPPORT 3072 bool 3073 default y 3074 3075config STACKTRACE_SUPPORT 3076 bool 3077 default y 3078 3079config HAVE_LATENCYTOP_SUPPORT 3080 bool 3081 default y 3082 3083config PGTABLE_LEVELS 3084 int 3085 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3086 default 3 if 64BIT && !PAGE_SIZE_64KB 3087 default 2 3088 3089config MIPS_AUTO_PFN_OFFSET 3090 bool 3091 3092menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3093 3094config PCI_DRIVERS_GENERIC 3095 select PCI_DOMAINS_GENERIC if PCI 3096 bool 3097 3098config PCI_DRIVERS_LEGACY 3099 def_bool !PCI_DRIVERS_GENERIC 3100 select NO_GENERIC_PCI_IOPORT_MAP 3101 select PCI_DOMAINS if PCI 3102 3103# 3104# ISA support is now enabled via select. Too many systems still have the one 3105# or other ISA chip on the board that users don't know about so don't expect 3106# users to choose the right thing ... 3107# 3108config ISA 3109 bool 3110 3111config TC 3112 bool "TURBOchannel support" 3113 depends on MACH_DECSTATION 3114 help 3115 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3116 processors. TURBOchannel programming specifications are available 3117 at: 3118 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3119 and: 3120 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3121 Linux driver support status is documented at: 3122 <http://www.linux-mips.org/wiki/DECstation> 3123 3124config MMU 3125 bool 3126 default y 3127 3128config ARCH_MMAP_RND_BITS_MIN 3129 default 12 if 64BIT 3130 default 8 3131 3132config ARCH_MMAP_RND_BITS_MAX 3133 default 18 if 64BIT 3134 default 15 3135 3136config ARCH_MMAP_RND_COMPAT_BITS_MIN 3137 default 8 3138 3139config ARCH_MMAP_RND_COMPAT_BITS_MAX 3140 default 15 3141 3142config I8253 3143 bool 3144 select CLKSRC_I8253 3145 select CLKEVT_I8253 3146 select MIPS_EXTERNAL_TIMER 3147 3148config ZONE_DMA 3149 bool 3150 3151config ZONE_DMA32 3152 bool 3153 3154endmenu 3155 3156config TRAD_SIGNALS 3157 bool 3158 3159config MIPS32_COMPAT 3160 bool 3161 3162config COMPAT 3163 bool 3164 3165config SYSVIPC_COMPAT 3166 bool 3167 3168config MIPS32_O32 3169 bool "Kernel support for o32 binaries" 3170 depends on 64BIT 3171 select ARCH_WANT_OLD_COMPAT_IPC 3172 select COMPAT 3173 select MIPS32_COMPAT 3174 select SYSVIPC_COMPAT if SYSVIPC 3175 help 3176 Select this option if you want to run o32 binaries. These are pure 3177 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3178 existing binaries are in this format. 3179 3180 If unsure, say Y. 3181 3182config MIPS32_N32 3183 bool "Kernel support for n32 binaries" 3184 depends on 64BIT 3185 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3186 select COMPAT 3187 select MIPS32_COMPAT 3188 select SYSVIPC_COMPAT if SYSVIPC 3189 help 3190 Select this option if you want to run n32 binaries. These are 3191 64-bit binaries using 32-bit quantities for addressing and certain 3192 data that would normally be 64-bit. They are used in special 3193 cases. 3194 3195 If unsure, say N. 3196 3197config BINFMT_ELF32 3198 bool 3199 default y if MIPS32_O32 || MIPS32_N32 3200 select ELFCORE 3201 3202menu "Power management options" 3203 3204config ARCH_HIBERNATION_POSSIBLE 3205 def_bool y 3206 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3207 3208config ARCH_SUSPEND_POSSIBLE 3209 def_bool y 3210 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3211 3212source "kernel/power/Kconfig" 3213 3214endmenu 3215 3216config MIPS_EXTERNAL_TIMER 3217 bool 3218 3219menu "CPU Power Management" 3220 3221if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3222source "drivers/cpufreq/Kconfig" 3223endif 3224 3225source "drivers/cpuidle/Kconfig" 3226 3227endmenu 3228 3229source "drivers/firmware/Kconfig" 3230 3231source "arch/mips/kvm/Kconfig" 3232