1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_SUPPORTS_UPROBES 11 select ARCH_USE_BUILTIN_BSWAP 12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 13 select ARCH_USE_QUEUED_RWLOCKS 14 select ARCH_USE_QUEUED_SPINLOCKS 15 select ARCH_WANT_IPC_PARSE_VERSION 16 select BUILDTIME_EXTABLE_SORT 17 select CLONE_BACKWARDS 18 select CPU_PM if CPU_IDLE 19 select DMA_DIRECT_OPS 20 select GENERIC_ATOMIC64 if !64BIT 21 select GENERIC_CLOCKEVENTS 22 select GENERIC_CMOS_UPDATE 23 select GENERIC_CPU_AUTOPROBE 24 select GENERIC_IOMAP 25 select GENERIC_IRQ_PROBE 26 select GENERIC_IRQ_SHOW 27 select GENERIC_LIB_ASHLDI3 28 select GENERIC_LIB_ASHRDI3 29 select GENERIC_LIB_CMPDI2 30 select GENERIC_LIB_LSHRDI3 31 select GENERIC_LIB_UCMPDI2 32 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 33 select GENERIC_SMP_IDLE_THREAD 34 select GENERIC_TIME_VSYSCALL 35 select HANDLE_DOMAIN_IRQ 36 select HAVE_ARCH_COMPILER_H 37 select HAVE_ARCH_JUMP_LABEL 38 select HAVE_ARCH_KGDB 39 select HAVE_ARCH_MMAP_RND_BITS if MMU 40 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 41 select HAVE_ARCH_SECCOMP_FILTER 42 select HAVE_ARCH_TRACEHOOK 43 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 44 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 45 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 46 select HAVE_CONTEXT_TRACKING 47 select HAVE_COPY_THREAD_TLS 48 select HAVE_C_RECORDMCOUNT 49 select HAVE_DEBUG_KMEMLEAK 50 select HAVE_DEBUG_STACKOVERFLOW 51 select HAVE_DMA_CONTIGUOUS 52 select HAVE_DYNAMIC_FTRACE 53 select HAVE_EXIT_THREAD 54 select HAVE_FTRACE_MCOUNT_RECORD 55 select HAVE_FUNCTION_GRAPH_TRACER 56 select HAVE_FUNCTION_TRACER 57 select HAVE_GENERIC_DMA_COHERENT 58 select HAVE_IDE 59 select HAVE_IRQ_EXIT_ON_IRQ_STACK 60 select HAVE_IRQ_TIME_ACCOUNTING 61 select HAVE_KPROBES 62 select HAVE_KRETPROBES 63 select HAVE_MEMBLOCK 64 select HAVE_MEMBLOCK_NODE_MAP 65 select HAVE_MOD_ARCH_SPECIFIC 66 select HAVE_NMI 67 select HAVE_OPROFILE 68 select HAVE_PERF_EVENTS 69 select HAVE_REGS_AND_STACK_ACCESS_API 70 select HAVE_RSEQ 71 select HAVE_STACKPROTECTOR 72 select HAVE_SYSCALL_TRACEPOINTS 73 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 74 select IRQ_FORCED_THREADING 75 select MODULES_USE_ELF_RELA if MODULES && 64BIT 76 select MODULES_USE_ELF_REL if MODULES 77 select PERF_USE_VMALLOC 78 select RTC_LIB 79 select SYSCTL_EXCEPTION_TRACE 80 select VIRT_TO_BUS 81 select NO_BOOTMEM 82 83menu "Machine selection" 84 85choice 86 prompt "System type" 87 default MIPS_GENERIC 88 89config MIPS_GENERIC 90 bool "Generic board-agnostic MIPS kernel" 91 select BOOT_RAW 92 select BUILTIN_DTB 93 select CEVT_R4K 94 select CLKSRC_MIPS_GIC 95 select COMMON_CLK 96 select CPU_MIPSR2_IRQ_VI 97 select CPU_MIPSR2_IRQ_EI 98 select CSRC_R4K 99 select DMA_PERDEV_COHERENT 100 select HW_HAS_PCI 101 select IRQ_MIPS_CPU 102 select LIBFDT 103 select MIPS_AUTO_PFN_OFFSET 104 select MIPS_CPU_SCACHE 105 select MIPS_GIC 106 select MIPS_L1_CACHE_SHIFT_7 107 select NO_EXCEPT_FILL 108 select PCI_DRIVERS_GENERIC 109 select PINCTRL 110 select SMP_UP if SMP 111 select SWAP_IO_SPACE 112 select SYS_HAS_CPU_MIPS32_R1 113 select SYS_HAS_CPU_MIPS32_R2 114 select SYS_HAS_CPU_MIPS32_R6 115 select SYS_HAS_CPU_MIPS64_R1 116 select SYS_HAS_CPU_MIPS64_R2 117 select SYS_HAS_CPU_MIPS64_R6 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_SUPPORTS_64BIT_KERNEL 120 select SYS_SUPPORTS_BIG_ENDIAN 121 select SYS_SUPPORTS_HIGHMEM 122 select SYS_SUPPORTS_LITTLE_ENDIAN 123 select SYS_SUPPORTS_MICROMIPS 124 select SYS_SUPPORTS_MIPS_CPS 125 select SYS_SUPPORTS_MIPS16 126 select SYS_SUPPORTS_MULTITHREADING 127 select SYS_SUPPORTS_RELOCATABLE 128 select SYS_SUPPORTS_SMARTMIPS 129 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 130 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 131 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 132 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 133 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 134 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 135 select USE_OF 136 select UHI_BOOT 137 help 138 Select this to build a kernel which aims to support multiple boards, 139 generally using a flattened device tree passed from the bootloader 140 using the boot protocol defined in the UHI (Unified Hosting 141 Interface) specification. 142 143config MIPS_ALCHEMY 144 bool "Alchemy processor based machines" 145 select PHYS_ADDR_T_64BIT 146 select CEVT_R4K 147 select CSRC_R4K 148 select IRQ_MIPS_CPU 149 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 150 select SYS_HAS_CPU_MIPS32_R1 151 select SYS_SUPPORTS_32BIT_KERNEL 152 select SYS_SUPPORTS_APM_EMULATION 153 select GPIOLIB 154 select SYS_SUPPORTS_ZBOOT 155 select COMMON_CLK 156 157config AR7 158 bool "Texas Instruments AR7" 159 select BOOT_ELF32 160 select DMA_NONCOHERENT 161 select CEVT_R4K 162 select CSRC_R4K 163 select IRQ_MIPS_CPU 164 select NO_EXCEPT_FILL 165 select SWAP_IO_SPACE 166 select SYS_HAS_CPU_MIPS32_R1 167 select SYS_HAS_EARLY_PRINTK 168 select SYS_SUPPORTS_32BIT_KERNEL 169 select SYS_SUPPORTS_LITTLE_ENDIAN 170 select SYS_SUPPORTS_MIPS16 171 select SYS_SUPPORTS_ZBOOT_UART16550 172 select GPIOLIB 173 select VLYNQ 174 select HAVE_CLK 175 help 176 Support for the Texas Instruments AR7 System-on-a-Chip 177 family: TNETD7100, 7200 and 7300. 178 179config ATH25 180 bool "Atheros AR231x/AR531x SoC support" 181 select CEVT_R4K 182 select CSRC_R4K 183 select DMA_NONCOHERENT 184 select IRQ_MIPS_CPU 185 select IRQ_DOMAIN 186 select SYS_HAS_CPU_MIPS32_R1 187 select SYS_SUPPORTS_BIG_ENDIAN 188 select SYS_SUPPORTS_32BIT_KERNEL 189 select SYS_HAS_EARLY_PRINTK 190 help 191 Support for Atheros AR231x and Atheros AR531x based boards 192 193config ATH79 194 bool "Atheros AR71XX/AR724X/AR913X based boards" 195 select ARCH_HAS_RESET_CONTROLLER 196 select BOOT_RAW 197 select CEVT_R4K 198 select CSRC_R4K 199 select DMA_NONCOHERENT 200 select GPIOLIB 201 select PINCTRL 202 select HAVE_CLK 203 select COMMON_CLK 204 select CLKDEV_LOOKUP 205 select IRQ_MIPS_CPU 206 select MIPS_MACHINE 207 select SYS_HAS_CPU_MIPS32_R2 208 select SYS_HAS_EARLY_PRINTK 209 select SYS_SUPPORTS_32BIT_KERNEL 210 select SYS_SUPPORTS_BIG_ENDIAN 211 select SYS_SUPPORTS_MIPS16 212 select SYS_SUPPORTS_ZBOOT_UART_PROM 213 select USE_OF 214 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 215 help 216 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 217 218config BMIPS_GENERIC 219 bool "Broadcom Generic BMIPS kernel" 220 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 221 select ARCH_HAS_PHYS_TO_DMA 222 select BOOT_RAW 223 select NO_EXCEPT_FILL 224 select USE_OF 225 select CEVT_R4K 226 select CSRC_R4K 227 select SYNC_R4K 228 select COMMON_CLK 229 select BCM6345_L1_IRQ 230 select BCM7038_L1_IRQ 231 select BCM7120_L2_IRQ 232 select BRCMSTB_L2_IRQ 233 select IRQ_MIPS_CPU 234 select DMA_NONCOHERENT 235 select SYS_SUPPORTS_32BIT_KERNEL 236 select SYS_SUPPORTS_LITTLE_ENDIAN 237 select SYS_SUPPORTS_BIG_ENDIAN 238 select SYS_SUPPORTS_HIGHMEM 239 select SYS_HAS_CPU_BMIPS32_3300 240 select SYS_HAS_CPU_BMIPS4350 241 select SYS_HAS_CPU_BMIPS4380 242 select SYS_HAS_CPU_BMIPS5000 243 select SWAP_IO_SPACE 244 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 245 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 246 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select HARDIRQS_SW_RESEND 249 help 250 Build a generic DT-based kernel image that boots on select 251 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 252 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 253 must be set appropriately for your board. 254 255config BCM47XX 256 bool "Broadcom BCM47XX based boards" 257 select BOOT_RAW 258 select CEVT_R4K 259 select CSRC_R4K 260 select DMA_NONCOHERENT 261 select HW_HAS_PCI 262 select IRQ_MIPS_CPU 263 select SYS_HAS_CPU_MIPS32_R1 264 select NO_EXCEPT_FILL 265 select SYS_SUPPORTS_32BIT_KERNEL 266 select SYS_SUPPORTS_LITTLE_ENDIAN 267 select SYS_SUPPORTS_MIPS16 268 select SYS_SUPPORTS_ZBOOT 269 select SYS_HAS_EARLY_PRINTK 270 select USE_GENERIC_EARLY_PRINTK_8250 271 select GPIOLIB 272 select LEDS_GPIO_REGISTER 273 select BCM47XX_NVRAM 274 select BCM47XX_SPROM 275 select BCM47XX_SSB if !BCM47XX_BCMA 276 help 277 Support for BCM47XX based boards 278 279config BCM63XX 280 bool "Broadcom BCM63XX based boards" 281 select BOOT_RAW 282 select CEVT_R4K 283 select CSRC_R4K 284 select SYNC_R4K 285 select DMA_NONCOHERENT 286 select IRQ_MIPS_CPU 287 select SYS_SUPPORTS_32BIT_KERNEL 288 select SYS_SUPPORTS_BIG_ENDIAN 289 select SYS_HAS_EARLY_PRINTK 290 select SWAP_IO_SPACE 291 select GPIOLIB 292 select HAVE_CLK 293 select MIPS_L1_CACHE_SHIFT_4 294 select CLKDEV_LOOKUP 295 help 296 Support for BCM63XX based boards 297 298config MIPS_COBALT 299 bool "Cobalt Server" 300 select CEVT_R4K 301 select CSRC_R4K 302 select CEVT_GT641XX 303 select DMA_NONCOHERENT 304 select HW_HAS_PCI 305 select I8253 306 select I8259 307 select IRQ_MIPS_CPU 308 select IRQ_GT641XX 309 select PCI_GT64XXX_PCI0 310 select PCI 311 select SYS_HAS_CPU_NEVADA 312 select SYS_HAS_EARLY_PRINTK 313 select SYS_SUPPORTS_32BIT_KERNEL 314 select SYS_SUPPORTS_64BIT_KERNEL 315 select SYS_SUPPORTS_LITTLE_ENDIAN 316 select USE_GENERIC_EARLY_PRINTK_8250 317 318config MACH_DECSTATION 319 bool "DECstations" 320 select BOOT_ELF32 321 select CEVT_DS1287 322 select CEVT_R4K if CPU_R4X00 323 select CSRC_IOASIC 324 select CSRC_R4K if CPU_R4X00 325 select CPU_DADDI_WORKAROUNDS if 64BIT 326 select CPU_R4000_WORKAROUNDS if 64BIT 327 select CPU_R4400_WORKAROUNDS if 64BIT 328 select DMA_NONCOHERENT 329 select NO_IOPORT_MAP 330 select IRQ_MIPS_CPU 331 select SYS_HAS_CPU_R3000 332 select SYS_HAS_CPU_R4X00 333 select SYS_SUPPORTS_32BIT_KERNEL 334 select SYS_SUPPORTS_64BIT_KERNEL 335 select SYS_SUPPORTS_LITTLE_ENDIAN 336 select SYS_SUPPORTS_128HZ 337 select SYS_SUPPORTS_256HZ 338 select SYS_SUPPORTS_1024HZ 339 select MIPS_L1_CACHE_SHIFT_4 340 help 341 This enables support for DEC's MIPS based workstations. For details 342 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 343 DECstation porting pages on <http://decstation.unix-ag.org/>. 344 345 If you have one of the following DECstation Models you definitely 346 want to choose R4xx0 for the CPU Type: 347 348 DECstation 5000/50 349 DECstation 5000/150 350 DECstation 5000/260 351 DECsystem 5900/260 352 353 otherwise choose R3000. 354 355config MACH_JAZZ 356 bool "Jazz family of machines" 357 select ARCH_MIGHT_HAVE_PC_PARPORT 358 select ARCH_MIGHT_HAVE_PC_SERIO 359 select FW_ARC 360 select FW_ARC32 361 select ARCH_MAY_HAVE_PC_FDC 362 select CEVT_R4K 363 select CSRC_R4K 364 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 365 select GENERIC_ISA_DMA 366 select HAVE_PCSPKR_PLATFORM 367 select IRQ_MIPS_CPU 368 select I8253 369 select I8259 370 select ISA 371 select SYS_HAS_CPU_R4X00 372 select SYS_SUPPORTS_32BIT_KERNEL 373 select SYS_SUPPORTS_64BIT_KERNEL 374 select SYS_SUPPORTS_100HZ 375 help 376 This a family of machines based on the MIPS R4030 chipset which was 377 used by several vendors to build RISC/os and Windows NT workstations. 378 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 379 Olivetti M700-10 workstations. 380 381config MACH_INGENIC 382 bool "Ingenic SoC based machines" 383 select SYS_SUPPORTS_32BIT_KERNEL 384 select SYS_SUPPORTS_LITTLE_ENDIAN 385 select SYS_SUPPORTS_ZBOOT_UART16550 386 select DMA_NONCOHERENT 387 select IRQ_MIPS_CPU 388 select PINCTRL 389 select GPIOLIB 390 select COMMON_CLK 391 select GENERIC_IRQ_CHIP 392 select BUILTIN_DTB 393 select USE_OF 394 select LIBFDT 395 396config LANTIQ 397 bool "Lantiq based platforms" 398 select DMA_NONCOHERENT 399 select IRQ_MIPS_CPU 400 select CEVT_R4K 401 select CSRC_R4K 402 select SYS_HAS_CPU_MIPS32_R1 403 select SYS_HAS_CPU_MIPS32_R2 404 select SYS_SUPPORTS_BIG_ENDIAN 405 select SYS_SUPPORTS_32BIT_KERNEL 406 select SYS_SUPPORTS_MIPS16 407 select SYS_SUPPORTS_MULTITHREADING 408 select SYS_SUPPORTS_VPE_LOADER 409 select SYS_HAS_EARLY_PRINTK 410 select GPIOLIB 411 select SWAP_IO_SPACE 412 select BOOT_RAW 413 select CLKDEV_LOOKUP 414 select USE_OF 415 select PINCTRL 416 select PINCTRL_LANTIQ 417 select ARCH_HAS_RESET_CONTROLLER 418 select RESET_CONTROLLER 419 420config LASAT 421 bool "LASAT Networks platforms" 422 select CEVT_R4K 423 select CRC32 424 select CSRC_R4K 425 select DMA_NONCOHERENT 426 select SYS_HAS_EARLY_PRINTK 427 select HW_HAS_PCI 428 select IRQ_MIPS_CPU 429 select PCI_GT64XXX_PCI0 430 select MIPS_NILE4 431 select R5000_CPU_SCACHE 432 select SYS_HAS_CPU_R5000 433 select SYS_SUPPORTS_32BIT_KERNEL 434 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 435 select SYS_SUPPORTS_LITTLE_ENDIAN 436 437config MACH_LOONGSON32 438 bool "Loongson-1 family of machines" 439 select SYS_SUPPORTS_ZBOOT 440 help 441 This enables support for the Loongson-1 family of machines. 442 443 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 444 the Institute of Computing Technology (ICT), Chinese Academy of 445 Sciences (CAS). 446 447config MACH_LOONGSON64 448 bool "Loongson-2/3 family of machines" 449 select SYS_SUPPORTS_ZBOOT 450 help 451 This enables the support of Loongson-2/3 family of machines. 452 453 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 454 family of multi-core CPUs. They are both 64-bit general-purpose 455 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 456 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 457 in the People's Republic of China. The chief architect is Professor 458 Weiwu Hu. 459 460config MACH_PISTACHIO 461 bool "IMG Pistachio SoC based boards" 462 select BOOT_ELF32 463 select BOOT_RAW 464 select CEVT_R4K 465 select CLKSRC_MIPS_GIC 466 select COMMON_CLK 467 select CSRC_R4K 468 select DMA_NONCOHERENT 469 select GPIOLIB 470 select IRQ_MIPS_CPU 471 select LIBFDT 472 select MFD_SYSCON 473 select MIPS_CPU_SCACHE 474 select MIPS_GIC 475 select PINCTRL 476 select REGULATOR 477 select SYS_HAS_CPU_MIPS32_R2 478 select SYS_SUPPORTS_32BIT_KERNEL 479 select SYS_SUPPORTS_LITTLE_ENDIAN 480 select SYS_SUPPORTS_MIPS_CPS 481 select SYS_SUPPORTS_MULTITHREADING 482 select SYS_SUPPORTS_RELOCATABLE 483 select SYS_SUPPORTS_ZBOOT 484 select SYS_HAS_EARLY_PRINTK 485 select USE_GENERIC_EARLY_PRINTK_8250 486 select USE_OF 487 help 488 This enables support for the IMG Pistachio SoC platform. 489 490config MIPS_MALTA 491 bool "MIPS Malta board" 492 select ARCH_MAY_HAVE_PC_FDC 493 select ARCH_MIGHT_HAVE_PC_PARPORT 494 select ARCH_MIGHT_HAVE_PC_SERIO 495 select BOOT_ELF32 496 select BOOT_RAW 497 select BUILTIN_DTB 498 select CEVT_R4K 499 select CSRC_R4K 500 select CLKSRC_MIPS_GIC 501 select COMMON_CLK 502 select DMA_MAYBE_COHERENT 503 select GENERIC_ISA_DMA 504 select HAVE_PCSPKR_PLATFORM 505 select IRQ_MIPS_CPU 506 select MIPS_GIC 507 select HW_HAS_PCI 508 select I8253 509 select I8259 510 select MIPS_BONITO64 511 select MIPS_CPU_SCACHE 512 select MIPS_L1_CACHE_SHIFT_6 513 select PCI_GT64XXX_PCI0 514 select MIPS_MSC 515 select SMP_UP if SMP 516 select SWAP_IO_SPACE 517 select SYS_HAS_CPU_MIPS32_R1 518 select SYS_HAS_CPU_MIPS32_R2 519 select SYS_HAS_CPU_MIPS32_R3_5 520 select SYS_HAS_CPU_MIPS32_R5 521 select SYS_HAS_CPU_MIPS32_R6 522 select SYS_HAS_CPU_MIPS64_R1 523 select SYS_HAS_CPU_MIPS64_R2 524 select SYS_HAS_CPU_MIPS64_R6 525 select SYS_HAS_CPU_NEVADA 526 select SYS_HAS_CPU_RM7000 527 select SYS_SUPPORTS_32BIT_KERNEL 528 select SYS_SUPPORTS_64BIT_KERNEL 529 select SYS_SUPPORTS_BIG_ENDIAN 530 select SYS_SUPPORTS_HIGHMEM 531 select SYS_SUPPORTS_LITTLE_ENDIAN 532 select SYS_SUPPORTS_MICROMIPS 533 select SYS_SUPPORTS_MIPS_CMP 534 select SYS_SUPPORTS_MIPS_CPS 535 select SYS_SUPPORTS_MIPS16 536 select SYS_SUPPORTS_MULTITHREADING 537 select SYS_SUPPORTS_SMARTMIPS 538 select SYS_SUPPORTS_VPE_LOADER 539 select SYS_SUPPORTS_ZBOOT 540 select SYS_SUPPORTS_RELOCATABLE 541 select USE_OF 542 select LIBFDT 543 select ZONE_DMA32 if 64BIT 544 select BUILTIN_DTB 545 select LIBFDT 546 help 547 This enables support for the MIPS Technologies Malta evaluation 548 board. 549 550config MACH_PIC32 551 bool "Microchip PIC32 Family" 552 help 553 This enables support for the Microchip PIC32 family of platforms. 554 555 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 556 microcontrollers. 557 558config NEC_MARKEINS 559 bool "NEC EMMA2RH Mark-eins board" 560 select SOC_EMMA2RH 561 select HW_HAS_PCI 562 help 563 This enables support for the NEC Electronics Mark-eins boards. 564 565config MACH_VR41XX 566 bool "NEC VR4100 series based machines" 567 select CEVT_R4K 568 select CSRC_R4K 569 select SYS_HAS_CPU_VR41XX 570 select SYS_SUPPORTS_MIPS16 571 select GPIOLIB 572 573config NXP_STB220 574 bool "NXP STB220 board" 575 select SOC_PNX833X 576 help 577 Support for NXP Semiconductors STB220 Development Board. 578 579config NXP_STB225 580 bool "NXP 225 board" 581 select SOC_PNX833X 582 select SOC_PNX8335 583 help 584 Support for NXP Semiconductors STB225 Development Board. 585 586config PMC_MSP 587 bool "PMC-Sierra MSP chipsets" 588 select CEVT_R4K 589 select CSRC_R4K 590 select DMA_NONCOHERENT 591 select SWAP_IO_SPACE 592 select NO_EXCEPT_FILL 593 select BOOT_RAW 594 select SYS_HAS_CPU_MIPS32_R1 595 select SYS_HAS_CPU_MIPS32_R2 596 select SYS_SUPPORTS_32BIT_KERNEL 597 select SYS_SUPPORTS_BIG_ENDIAN 598 select SYS_SUPPORTS_MIPS16 599 select IRQ_MIPS_CPU 600 select SERIAL_8250 601 select SERIAL_8250_CONSOLE 602 select USB_EHCI_BIG_ENDIAN_MMIO 603 select USB_EHCI_BIG_ENDIAN_DESC 604 help 605 This adds support for the PMC-Sierra family of Multi-Service 606 Processor System-On-A-Chips. These parts include a number 607 of integrated peripherals, interfaces and DSPs in addition to 608 a variety of MIPS cores. 609 610config RALINK 611 bool "Ralink based machines" 612 select CEVT_R4K 613 select CSRC_R4K 614 select BOOT_RAW 615 select DMA_NONCOHERENT 616 select IRQ_MIPS_CPU 617 select USE_OF 618 select SYS_HAS_CPU_MIPS32_R1 619 select SYS_HAS_CPU_MIPS32_R2 620 select SYS_SUPPORTS_32BIT_KERNEL 621 select SYS_SUPPORTS_LITTLE_ENDIAN 622 select SYS_SUPPORTS_MIPS16 623 select SYS_HAS_EARLY_PRINTK 624 select CLKDEV_LOOKUP 625 select ARCH_HAS_RESET_CONTROLLER 626 select RESET_CONTROLLER 627 628config SGI_IP22 629 bool "SGI IP22 (Indy/Indigo2)" 630 select FW_ARC 631 select FW_ARC32 632 select ARCH_MIGHT_HAVE_PC_SERIO 633 select BOOT_ELF32 634 select CEVT_R4K 635 select CSRC_R4K 636 select DEFAULT_SGI_PARTITION 637 select DMA_NONCOHERENT 638 select HW_HAS_EISA 639 select I8253 640 select I8259 641 select IP22_CPU_SCACHE 642 select IRQ_MIPS_CPU 643 select GENERIC_ISA_DMA_SUPPORT_BROKEN 644 select SGI_HAS_I8042 645 select SGI_HAS_INDYDOG 646 select SGI_HAS_HAL2 647 select SGI_HAS_SEEQ 648 select SGI_HAS_WD93 649 select SGI_HAS_ZILOG 650 select SWAP_IO_SPACE 651 select SYS_HAS_CPU_R4X00 652 select SYS_HAS_CPU_R5000 653 # 654 # Disable EARLY_PRINTK for now since it leads to overwritten prom 655 # memory during early boot on some machines. 656 # 657 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 658 # for a more details discussion 659 # 660 # select SYS_HAS_EARLY_PRINTK 661 select SYS_SUPPORTS_32BIT_KERNEL 662 select SYS_SUPPORTS_64BIT_KERNEL 663 select SYS_SUPPORTS_BIG_ENDIAN 664 select MIPS_L1_CACHE_SHIFT_7 665 help 666 This are the SGI Indy, Challenge S and Indigo2, as well as certain 667 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 668 that runs on these, say Y here. 669 670config SGI_IP27 671 bool "SGI IP27 (Origin200/2000)" 672 select ARCH_HAS_PHYS_TO_DMA 673 select FW_ARC 674 select FW_ARC64 675 select BOOT_ELF64 676 select DEFAULT_SGI_PARTITION 677 select SYS_HAS_EARLY_PRINTK 678 select HW_HAS_PCI 679 select NR_CPUS_DEFAULT_64 680 select SYS_HAS_CPU_R10000 681 select SYS_SUPPORTS_64BIT_KERNEL 682 select SYS_SUPPORTS_BIG_ENDIAN 683 select SYS_SUPPORTS_NUMA 684 select SYS_SUPPORTS_SMP 685 select MIPS_L1_CACHE_SHIFT_7 686 help 687 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 688 workstations. To compile a Linux kernel that runs on these, say Y 689 here. 690 691config SGI_IP28 692 bool "SGI IP28 (Indigo2 R10k)" 693 select FW_ARC 694 select FW_ARC64 695 select ARCH_MIGHT_HAVE_PC_SERIO 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HW_HAS_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 # 715 # Disable EARLY_PRINTK for now since it leads to overwritten prom 716 # memory during early boot on some machines. 717 # 718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 719 # for a more details discussion 720 # 721 # select SYS_HAS_EARLY_PRINTK 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This is the SGI Indigo2 with R10000 processor. To compile a Linux 727 kernel that runs on these, say Y here. 728 729config SGI_IP32 730 bool "SGI IP32 (O2)" 731 select ARCH_HAS_PHYS_TO_DMA 732 select FW_ARC 733 select FW_ARC32 734 select BOOT_ELF32 735 select CEVT_R4K 736 select CSRC_R4K 737 select DMA_NONCOHERENT 738 select HW_HAS_PCI 739 select IRQ_MIPS_CPU 740 select R5000_CPU_SCACHE 741 select RM7000_CPU_SCACHE 742 select SYS_HAS_CPU_R5000 743 select SYS_HAS_CPU_R10000 if BROKEN 744 select SYS_HAS_CPU_RM7000 745 select SYS_HAS_CPU_NEVADA 746 select SYS_SUPPORTS_64BIT_KERNEL 747 select SYS_SUPPORTS_BIG_ENDIAN 748 help 749 If you want this kernel to run on SGI O2 workstation, say Y here. 750 751config SIBYTE_CRHINE 752 bool "Sibyte BCM91120C-CRhine" 753 select BOOT_ELF32 754 select SIBYTE_BCM1120 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_SB1 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_LITTLE_ENDIAN 759 760config SIBYTE_CARMEL 761 bool "Sibyte BCM91120x-Carmel" 762 select BOOT_ELF32 763 select SIBYTE_BCM1120 764 select SWAP_IO_SPACE 765 select SYS_HAS_CPU_SB1 766 select SYS_SUPPORTS_BIG_ENDIAN 767 select SYS_SUPPORTS_LITTLE_ENDIAN 768 769config SIBYTE_CRHONE 770 bool "Sibyte BCM91125C-CRhone" 771 select BOOT_ELF32 772 select SIBYTE_BCM1125 773 select SWAP_IO_SPACE 774 select SYS_HAS_CPU_SB1 775 select SYS_SUPPORTS_BIG_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_RHONE 780 bool "Sibyte BCM91125E-Rhone" 781 select BOOT_ELF32 782 select SIBYTE_BCM1125H 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_SWARM 789 bool "Sibyte BCM91250A-SWARM" 790 select BOOT_ELF32 791 select HAVE_PATA_PLATFORM 792 select SIBYTE_SB1250 793 select SWAP_IO_SPACE 794 select SYS_HAS_CPU_SB1 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select SYS_SUPPORTS_LITTLE_ENDIAN 798 select ZONE_DMA32 if 64BIT 799 800config SIBYTE_LITTLESUR 801 bool "Sibyte BCM91250C2-LittleSur" 802 select BOOT_ELF32 803 select HAVE_PATA_PLATFORM 804 select SIBYTE_SB1250 805 select SWAP_IO_SPACE 806 select SYS_HAS_CPU_SB1 807 select SYS_SUPPORTS_BIG_ENDIAN 808 select SYS_SUPPORTS_HIGHMEM 809 select SYS_SUPPORTS_LITTLE_ENDIAN 810 811config SIBYTE_SENTOSA 812 bool "Sibyte BCM91250E-Sentosa" 813 select BOOT_ELF32 814 select SIBYTE_SB1250 815 select SWAP_IO_SPACE 816 select SYS_HAS_CPU_SB1 817 select SYS_SUPPORTS_BIG_ENDIAN 818 select SYS_SUPPORTS_LITTLE_ENDIAN 819 820config SIBYTE_BIGSUR 821 bool "Sibyte BCM91480B-BigSur" 822 select BOOT_ELF32 823 select NR_CPUS_DEFAULT_4 824 select SIBYTE_BCM1x80 825 select SWAP_IO_SPACE 826 select SYS_HAS_CPU_SB1 827 select SYS_SUPPORTS_BIG_ENDIAN 828 select SYS_SUPPORTS_HIGHMEM 829 select SYS_SUPPORTS_LITTLE_ENDIAN 830 select ZONE_DMA32 if 64BIT 831 832config SNI_RM 833 bool "SNI RM200/300/400" 834 select FW_ARC if CPU_LITTLE_ENDIAN 835 select FW_ARC32 if CPU_LITTLE_ENDIAN 836 select FW_SNIPROM if CPU_BIG_ENDIAN 837 select ARCH_MAY_HAVE_PC_FDC 838 select ARCH_MIGHT_HAVE_PC_PARPORT 839 select ARCH_MIGHT_HAVE_PC_SERIO 840 select BOOT_ELF32 841 select CEVT_R4K 842 select CSRC_R4K 843 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 844 select DMA_NONCOHERENT 845 select GENERIC_ISA_DMA 846 select HAVE_PCSPKR_PLATFORM 847 select HW_HAS_EISA 848 select HW_HAS_PCI 849 select IRQ_MIPS_CPU 850 select I8253 851 select I8259 852 select ISA 853 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 854 select SYS_HAS_CPU_R4X00 855 select SYS_HAS_CPU_R5000 856 select SYS_HAS_CPU_R10000 857 select R5000_CPU_SCACHE 858 select SYS_HAS_EARLY_PRINTK 859 select SYS_SUPPORTS_32BIT_KERNEL 860 select SYS_SUPPORTS_64BIT_KERNEL 861 select SYS_SUPPORTS_BIG_ENDIAN 862 select SYS_SUPPORTS_HIGHMEM 863 select SYS_SUPPORTS_LITTLE_ENDIAN 864 help 865 The SNI RM200/300/400 are MIPS-based machines manufactured by 866 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 867 Technology and now in turn merged with Fujitsu. Say Y here to 868 support this machine type. 869 870config MACH_TX39XX 871 bool "Toshiba TX39 series based machines" 872 873config MACH_TX49XX 874 bool "Toshiba TX49 series based machines" 875 876config MIKROTIK_RB532 877 bool "Mikrotik RB532 boards" 878 select CEVT_R4K 879 select CSRC_R4K 880 select DMA_NONCOHERENT 881 select HW_HAS_PCI 882 select IRQ_MIPS_CPU 883 select SYS_HAS_CPU_MIPS32_R1 884 select SYS_SUPPORTS_32BIT_KERNEL 885 select SYS_SUPPORTS_LITTLE_ENDIAN 886 select SWAP_IO_SPACE 887 select BOOT_RAW 888 select GPIOLIB 889 select MIPS_L1_CACHE_SHIFT_4 890 help 891 Support the Mikrotik(tm) RouterBoard 532 series, 892 based on the IDT RC32434 SoC. 893 894config CAVIUM_OCTEON_SOC 895 bool "Cavium Networks Octeon SoC based boards" 896 select CEVT_R4K 897 select ARCH_HAS_PHYS_TO_DMA 898 select HAS_RAPIDIO 899 select PHYS_ADDR_T_64BIT 900 select SYS_SUPPORTS_64BIT_KERNEL 901 select SYS_SUPPORTS_BIG_ENDIAN 902 select EDAC_SUPPORT 903 select EDAC_ATOMIC_SCRUB 904 select SYS_SUPPORTS_LITTLE_ENDIAN 905 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 906 select SYS_HAS_EARLY_PRINTK 907 select SYS_HAS_CPU_CAVIUM_OCTEON 908 select HW_HAS_PCI 909 select ZONE_DMA32 910 select HOLES_IN_ZONE 911 select GPIOLIB 912 select LIBFDT 913 select USE_OF 914 select ARCH_SPARSEMEM_ENABLE 915 select SYS_SUPPORTS_SMP 916 select NR_CPUS_DEFAULT_64 917 select MIPS_NR_CPU_NR_MAP_1024 918 select BUILTIN_DTB 919 select MTD_COMPLEX_MAPPINGS 920 select SWIOTLB 921 select SYS_SUPPORTS_RELOCATABLE 922 help 923 This option supports all of the Octeon reference boards from Cavium 924 Networks. It builds a kernel that dynamically determines the Octeon 925 CPU type and supports all known board reference implementations. 926 Some of the supported boards are: 927 EBT3000 928 EBH3000 929 EBH3100 930 Thunder 931 Kodama 932 Hikari 933 Say Y here for most Octeon reference boards. 934 935config NLM_XLR_BOARD 936 bool "Netlogic XLR/XLS based systems" 937 select BOOT_ELF32 938 select NLM_COMMON 939 select SYS_HAS_CPU_XLR 940 select SYS_SUPPORTS_SMP 941 select HW_HAS_PCI 942 select SWAP_IO_SPACE 943 select SYS_SUPPORTS_32BIT_KERNEL 944 select SYS_SUPPORTS_64BIT_KERNEL 945 select PHYS_ADDR_T_64BIT 946 select SYS_SUPPORTS_BIG_ENDIAN 947 select SYS_SUPPORTS_HIGHMEM 948 select NR_CPUS_DEFAULT_32 949 select CEVT_R4K 950 select CSRC_R4K 951 select IRQ_MIPS_CPU 952 select ZONE_DMA32 if 64BIT 953 select SYNC_R4K 954 select SYS_HAS_EARLY_PRINTK 955 select SYS_SUPPORTS_ZBOOT 956 select SYS_SUPPORTS_ZBOOT_UART16550 957 help 958 Support for systems based on Netlogic XLR and XLS processors. 959 Say Y here if you have a XLR or XLS based board. 960 961config NLM_XLP_BOARD 962 bool "Netlogic XLP based systems" 963 select BOOT_ELF32 964 select NLM_COMMON 965 select SYS_HAS_CPU_XLP 966 select SYS_SUPPORTS_SMP 967 select HW_HAS_PCI 968 select SYS_SUPPORTS_32BIT_KERNEL 969 select SYS_SUPPORTS_64BIT_KERNEL 970 select PHYS_ADDR_T_64BIT 971 select GPIOLIB 972 select SYS_SUPPORTS_BIG_ENDIAN 973 select SYS_SUPPORTS_LITTLE_ENDIAN 974 select SYS_SUPPORTS_HIGHMEM 975 select NR_CPUS_DEFAULT_32 976 select CEVT_R4K 977 select CSRC_R4K 978 select IRQ_MIPS_CPU 979 select ZONE_DMA32 if 64BIT 980 select SYNC_R4K 981 select SYS_HAS_EARLY_PRINTK 982 select USE_OF 983 select SYS_SUPPORTS_ZBOOT 984 select SYS_SUPPORTS_ZBOOT_UART16550 985 help 986 This board is based on Netlogic XLP Processor. 987 Say Y here if you have a XLP based board. 988 989config MIPS_PARAVIRT 990 bool "Para-Virtualized guest system" 991 select CEVT_R4K 992 select CSRC_R4K 993 select SYS_SUPPORTS_64BIT_KERNEL 994 select SYS_SUPPORTS_32BIT_KERNEL 995 select SYS_SUPPORTS_BIG_ENDIAN 996 select SYS_SUPPORTS_SMP 997 select NR_CPUS_DEFAULT_4 998 select SYS_HAS_EARLY_PRINTK 999 select SYS_HAS_CPU_MIPS32_R2 1000 select SYS_HAS_CPU_MIPS64_R2 1001 select SYS_HAS_CPU_CAVIUM_OCTEON 1002 select HW_HAS_PCI 1003 select SWAP_IO_SPACE 1004 help 1005 This option supports guest running under ???? 1006 1007endchoice 1008 1009source "arch/mips/alchemy/Kconfig" 1010source "arch/mips/ath25/Kconfig" 1011source "arch/mips/ath79/Kconfig" 1012source "arch/mips/bcm47xx/Kconfig" 1013source "arch/mips/bcm63xx/Kconfig" 1014source "arch/mips/bmips/Kconfig" 1015source "arch/mips/generic/Kconfig" 1016source "arch/mips/jazz/Kconfig" 1017source "arch/mips/jz4740/Kconfig" 1018source "arch/mips/lantiq/Kconfig" 1019source "arch/mips/lasat/Kconfig" 1020source "arch/mips/pic32/Kconfig" 1021source "arch/mips/pistachio/Kconfig" 1022source "arch/mips/pmcs-msp71xx/Kconfig" 1023source "arch/mips/ralink/Kconfig" 1024source "arch/mips/sgi-ip27/Kconfig" 1025source "arch/mips/sibyte/Kconfig" 1026source "arch/mips/txx9/Kconfig" 1027source "arch/mips/vr41xx/Kconfig" 1028source "arch/mips/cavium-octeon/Kconfig" 1029source "arch/mips/loongson32/Kconfig" 1030source "arch/mips/loongson64/Kconfig" 1031source "arch/mips/netlogic/Kconfig" 1032source "arch/mips/paravirt/Kconfig" 1033 1034endmenu 1035 1036config RWSEM_GENERIC_SPINLOCK 1037 bool 1038 default y 1039 1040config RWSEM_XCHGADD_ALGORITHM 1041 bool 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 DMA_NONCOHERENT 1118 1119config DMA_NONCOHERENT 1120 bool 1121 select ARCH_HAS_DMA_MMAP_PGPROT 1122 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1123 select ARCH_HAS_SYNC_DMA_FOR_CPU 1124 select NEED_DMA_MAP_STATE 1125 select ARCH_HAS_DMA_COHERENT_TO_PFN 1126 select DMA_NONCOHERENT_CACHE_SYNC 1127 1128config SYS_HAS_EARLY_PRINTK 1129 bool 1130 1131config SYS_SUPPORTS_HOTPLUG_CPU 1132 bool 1133 1134config MIPS_BONITO64 1135 bool 1136 1137config MIPS_MSC 1138 bool 1139 1140config MIPS_NILE4 1141 bool 1142 1143config SYNC_R4K 1144 bool 1145 1146config MIPS_MACHINE 1147 def_bool n 1148 1149config NO_IOPORT_MAP 1150 def_bool n 1151 1152config GENERIC_CSUM 1153 bool 1154 default y if !CPU_HAS_LOAD_STORE_LR 1155 1156config GENERIC_ISA_DMA 1157 bool 1158 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1159 select ISA_DMA_API 1160 1161config GENERIC_ISA_DMA_SUPPORT_BROKEN 1162 bool 1163 select GENERIC_ISA_DMA 1164 1165config ISA_DMA_API 1166 bool 1167 1168config HOLES_IN_ZONE 1169 bool 1170 1171config SYS_SUPPORTS_RELOCATABLE 1172 bool 1173 help 1174 Selected if the platform supports relocating the kernel. 1175 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1176 to allow access to command line and entropy sources. 1177 1178config MIPS_CBPF_JIT 1179 def_bool y 1180 depends on BPF_JIT && HAVE_CBPF_JIT 1181 1182config MIPS_EBPF_JIT 1183 def_bool y 1184 depends on BPF_JIT && HAVE_EBPF_JIT 1185 1186 1187# 1188# Endianness selection. Sufficiently obscure so many users don't know what to 1189# answer,so we try hard to limit the available choices. Also the use of a 1190# choice statement should be more obvious to the user. 1191# 1192choice 1193 prompt "Endianness selection" 1194 help 1195 Some MIPS machines can be configured for either little or big endian 1196 byte order. These modes require different kernels and a different 1197 Linux distribution. In general there is one preferred byteorder for a 1198 particular system but some systems are just as commonly used in the 1199 one or the other endianness. 1200 1201config CPU_BIG_ENDIAN 1202 bool "Big endian" 1203 depends on SYS_SUPPORTS_BIG_ENDIAN 1204 1205config CPU_LITTLE_ENDIAN 1206 bool "Little endian" 1207 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1208 1209endchoice 1210 1211config EXPORT_UASM 1212 bool 1213 1214config SYS_SUPPORTS_APM_EMULATION 1215 bool 1216 1217config SYS_SUPPORTS_BIG_ENDIAN 1218 bool 1219 1220config SYS_SUPPORTS_LITTLE_ENDIAN 1221 bool 1222 1223config SYS_SUPPORTS_HUGETLBFS 1224 bool 1225 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1226 default y 1227 1228config MIPS_HUGE_TLB_SUPPORT 1229 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1230 1231config IRQ_CPU_RM7K 1232 bool 1233 1234config IRQ_MSP_SLP 1235 bool 1236 1237config IRQ_MSP_CIC 1238 bool 1239 1240config IRQ_TXX9 1241 bool 1242 1243config IRQ_GT641XX 1244 bool 1245 1246config PCI_GT64XXX_PCI0 1247 bool 1248 1249config NO_EXCEPT_FILL 1250 bool 1251 1252config SOC_EMMA2RH 1253 bool 1254 select CEVT_R4K 1255 select CSRC_R4K 1256 select DMA_NONCOHERENT 1257 select IRQ_MIPS_CPU 1258 select SWAP_IO_SPACE 1259 select SYS_HAS_CPU_R5500 1260 select SYS_SUPPORTS_32BIT_KERNEL 1261 select SYS_SUPPORTS_64BIT_KERNEL 1262 select SYS_SUPPORTS_BIG_ENDIAN 1263 1264config SOC_PNX833X 1265 bool 1266 select CEVT_R4K 1267 select CSRC_R4K 1268 select IRQ_MIPS_CPU 1269 select DMA_NONCOHERENT 1270 select SYS_HAS_CPU_MIPS32_R2 1271 select SYS_SUPPORTS_32BIT_KERNEL 1272 select SYS_SUPPORTS_LITTLE_ENDIAN 1273 select SYS_SUPPORTS_BIG_ENDIAN 1274 select SYS_SUPPORTS_MIPS16 1275 select CPU_MIPSR2_IRQ_VI 1276 1277config SOC_PNX8335 1278 bool 1279 select SOC_PNX833X 1280 1281config MIPS_SPRAM 1282 bool 1283 1284config SWAP_IO_SPACE 1285 bool 1286 1287config SGI_HAS_INDYDOG 1288 bool 1289 1290config SGI_HAS_HAL2 1291 bool 1292 1293config SGI_HAS_SEEQ 1294 bool 1295 1296config SGI_HAS_WD93 1297 bool 1298 1299config SGI_HAS_ZILOG 1300 bool 1301 1302config SGI_HAS_I8042 1303 bool 1304 1305config DEFAULT_SGI_PARTITION 1306 bool 1307 1308config FW_ARC32 1309 bool 1310 1311config FW_SNIPROM 1312 bool 1313 1314config BOOT_ELF32 1315 bool 1316 1317config MIPS_L1_CACHE_SHIFT_4 1318 bool 1319 1320config MIPS_L1_CACHE_SHIFT_5 1321 bool 1322 1323config MIPS_L1_CACHE_SHIFT_6 1324 bool 1325 1326config MIPS_L1_CACHE_SHIFT_7 1327 bool 1328 1329config MIPS_L1_CACHE_SHIFT 1330 int 1331 default "7" if MIPS_L1_CACHE_SHIFT_7 1332 default "6" if MIPS_L1_CACHE_SHIFT_6 1333 default "5" if MIPS_L1_CACHE_SHIFT_5 1334 default "4" if MIPS_L1_CACHE_SHIFT_4 1335 default "5" 1336 1337config HAVE_STD_PC_SERIAL_PORT 1338 bool 1339 1340config ARC_CONSOLE 1341 bool "ARC console support" 1342 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1343 1344config ARC_MEMORY 1345 bool 1346 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1347 default y 1348 1349config ARC_PROMLIB 1350 bool 1351 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1352 default y 1353 1354config FW_ARC64 1355 bool 1356 1357config BOOT_ELF64 1358 bool 1359 1360menu "CPU selection" 1361 1362choice 1363 prompt "CPU type" 1364 default CPU_R4X00 1365 1366config CPU_LOONGSON3 1367 bool "Loongson 3 CPU" 1368 depends on SYS_HAS_CPU_LOONGSON3 1369 select ARCH_HAS_PHYS_TO_DMA 1370 select CPU_SUPPORTS_64BIT_KERNEL 1371 select CPU_SUPPORTS_HIGHMEM 1372 select CPU_SUPPORTS_HUGEPAGES 1373 select CPU_HAS_LOAD_STORE_LR 1374 select WEAK_ORDERING 1375 select WEAK_REORDERING_BEYOND_LLSC 1376 select MIPS_PGD_C0_CONTEXT 1377 select MIPS_L1_CACHE_SHIFT_6 1378 select GPIOLIB 1379 select SWIOTLB 1380 help 1381 The Loongson 3 processor implements the MIPS64R2 instruction 1382 set with many extensions. 1383 1384config LOONGSON3_ENHANCEMENT 1385 bool "New Loongson 3 CPU Enhancements" 1386 default n 1387 select CPU_MIPSR2 1388 select CPU_HAS_PREFETCH 1389 depends on CPU_LOONGSON3 1390 help 1391 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1392 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1393 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1394 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1395 Fast TLB refill support, etc. 1396 1397 This option enable those enhancements which are not probed at run 1398 time. If you want a generic kernel to run on all Loongson 3 machines, 1399 please say 'N' here. If you want a high-performance kernel to run on 1400 new Loongson 3 machines only, please say 'Y' here. 1401 1402config CPU_LOONGSON2E 1403 bool "Loongson 2E" 1404 depends on SYS_HAS_CPU_LOONGSON2E 1405 select CPU_LOONGSON2 1406 help 1407 The Loongson 2E processor implements the MIPS III instruction set 1408 with many extensions. 1409 1410 It has an internal FPGA northbridge, which is compatible to 1411 bonito64. 1412 1413config CPU_LOONGSON2F 1414 bool "Loongson 2F" 1415 depends on SYS_HAS_CPU_LOONGSON2F 1416 select CPU_LOONGSON2 1417 select GPIOLIB 1418 help 1419 The Loongson 2F processor implements the MIPS III instruction set 1420 with many extensions. 1421 1422 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1423 have a similar programming interface with FPGA northbridge used in 1424 Loongson2E. 1425 1426config CPU_LOONGSON1B 1427 bool "Loongson 1B" 1428 depends on SYS_HAS_CPU_LOONGSON1B 1429 select CPU_LOONGSON1 1430 select LEDS_GPIO_REGISTER 1431 help 1432 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1433 Release 1 instruction set and part of the MIPS32 Release 2 1434 instruction set. 1435 1436config CPU_LOONGSON1C 1437 bool "Loongson 1C" 1438 depends on SYS_HAS_CPU_LOONGSON1C 1439 select CPU_LOONGSON1 1440 select LEDS_GPIO_REGISTER 1441 help 1442 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1443 Release 1 instruction set and part of the MIPS32 Release 2 1444 instruction set. 1445 1446config CPU_MIPS32_R1 1447 bool "MIPS32 Release 1" 1448 depends on SYS_HAS_CPU_MIPS32_R1 1449 select CPU_HAS_PREFETCH 1450 select CPU_HAS_LOAD_STORE_LR 1451 select CPU_SUPPORTS_32BIT_KERNEL 1452 select CPU_SUPPORTS_HIGHMEM 1453 help 1454 Choose this option to build a kernel for release 1 or later of the 1455 MIPS32 architecture. Most modern embedded systems with a 32-bit 1456 MIPS processor are based on a MIPS32 processor. If you know the 1457 specific type of processor in your system, choose those that one 1458 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1459 Release 2 of the MIPS32 architecture is available since several 1460 years so chances are you even have a MIPS32 Release 2 processor 1461 in which case you should choose CPU_MIPS32_R2 instead for better 1462 performance. 1463 1464config CPU_MIPS32_R2 1465 bool "MIPS32 Release 2" 1466 depends on SYS_HAS_CPU_MIPS32_R2 1467 select CPU_HAS_PREFETCH 1468 select CPU_HAS_LOAD_STORE_LR 1469 select CPU_SUPPORTS_32BIT_KERNEL 1470 select CPU_SUPPORTS_HIGHMEM 1471 select CPU_SUPPORTS_MSA 1472 select HAVE_KVM 1473 help 1474 Choose this option to build a kernel for release 2 or later of the 1475 MIPS32 architecture. Most modern embedded systems with a 32-bit 1476 MIPS processor are based on a MIPS32 processor. If you know the 1477 specific type of processor in your system, choose those that one 1478 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1479 1480config CPU_MIPS32_R6 1481 bool "MIPS32 Release 6" 1482 depends on SYS_HAS_CPU_MIPS32_R6 1483 select CPU_HAS_PREFETCH 1484 select CPU_SUPPORTS_32BIT_KERNEL 1485 select CPU_SUPPORTS_HIGHMEM 1486 select CPU_SUPPORTS_MSA 1487 select HAVE_KVM 1488 select MIPS_O32_FP64_SUPPORT 1489 help 1490 Choose this option to build a kernel for release 6 or later of the 1491 MIPS32 architecture. New MIPS processors, starting with the Warrior 1492 family, are based on a MIPS32r6 processor. If you own an older 1493 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1494 1495config CPU_MIPS64_R1 1496 bool "MIPS64 Release 1" 1497 depends on SYS_HAS_CPU_MIPS64_R1 1498 select CPU_HAS_PREFETCH 1499 select CPU_HAS_LOAD_STORE_LR 1500 select CPU_SUPPORTS_32BIT_KERNEL 1501 select CPU_SUPPORTS_64BIT_KERNEL 1502 select CPU_SUPPORTS_HIGHMEM 1503 select CPU_SUPPORTS_HUGEPAGES 1504 help 1505 Choose this option to build a kernel for release 1 or later of the 1506 MIPS64 architecture. Many modern embedded systems with a 64-bit 1507 MIPS processor are based on a MIPS64 processor. If you know the 1508 specific type of processor in your system, choose those that one 1509 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1510 Release 2 of the MIPS64 architecture is available since several 1511 years so chances are you even have a MIPS64 Release 2 processor 1512 in which case you should choose CPU_MIPS64_R2 instead for better 1513 performance. 1514 1515config CPU_MIPS64_R2 1516 bool "MIPS64 Release 2" 1517 depends on SYS_HAS_CPU_MIPS64_R2 1518 select CPU_HAS_PREFETCH 1519 select CPU_HAS_LOAD_STORE_LR 1520 select CPU_SUPPORTS_32BIT_KERNEL 1521 select CPU_SUPPORTS_64BIT_KERNEL 1522 select CPU_SUPPORTS_HIGHMEM 1523 select CPU_SUPPORTS_HUGEPAGES 1524 select CPU_SUPPORTS_MSA 1525 select HAVE_KVM 1526 help 1527 Choose this option to build a kernel for release 2 or later of the 1528 MIPS64 architecture. Many modern embedded systems with a 64-bit 1529 MIPS processor are based on a MIPS64 processor. If you know the 1530 specific type of processor in your system, choose those that one 1531 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1532 1533config CPU_MIPS64_R6 1534 bool "MIPS64 Release 6" 1535 depends on SYS_HAS_CPU_MIPS64_R6 1536 select CPU_HAS_PREFETCH 1537 select CPU_SUPPORTS_32BIT_KERNEL 1538 select CPU_SUPPORTS_64BIT_KERNEL 1539 select CPU_SUPPORTS_HIGHMEM 1540 select CPU_SUPPORTS_MSA 1541 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1542 select HAVE_KVM 1543 help 1544 Choose this option to build a kernel for release 6 or later of the 1545 MIPS64 architecture. New MIPS processors, starting with the Warrior 1546 family, are based on a MIPS64r6 processor. If you own an older 1547 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1548 1549config CPU_R3000 1550 bool "R3000" 1551 depends on SYS_HAS_CPU_R3000 1552 select CPU_HAS_WB 1553 select CPU_HAS_LOAD_STORE_LR 1554 select CPU_SUPPORTS_32BIT_KERNEL 1555 select CPU_SUPPORTS_HIGHMEM 1556 help 1557 Please make sure to pick the right CPU type. Linux/MIPS is not 1558 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1559 *not* work on R4000 machines and vice versa. However, since most 1560 of the supported machines have an R4000 (or similar) CPU, R4x00 1561 might be a safe bet. If the resulting kernel does not work, 1562 try to recompile with R3000. 1563 1564config CPU_TX39XX 1565 bool "R39XX" 1566 depends on SYS_HAS_CPU_TX39XX 1567 select CPU_SUPPORTS_32BIT_KERNEL 1568 select CPU_HAS_LOAD_STORE_LR 1569 1570config CPU_VR41XX 1571 bool "R41xx" 1572 depends on SYS_HAS_CPU_VR41XX 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_64BIT_KERNEL 1575 select CPU_HAS_LOAD_STORE_LR 1576 help 1577 The options selects support for the NEC VR4100 series of processors. 1578 Only choose this option if you have one of these processors as a 1579 kernel built with this option will not run on any other type of 1580 processor or vice versa. 1581 1582config CPU_R4300 1583 bool "R4300" 1584 depends on SYS_HAS_CPU_R4300 1585 select CPU_SUPPORTS_32BIT_KERNEL 1586 select CPU_SUPPORTS_64BIT_KERNEL 1587 select CPU_HAS_LOAD_STORE_LR 1588 help 1589 MIPS Technologies R4300-series processors. 1590 1591config CPU_R4X00 1592 bool "R4x00" 1593 depends on SYS_HAS_CPU_R4X00 1594 select CPU_SUPPORTS_32BIT_KERNEL 1595 select CPU_SUPPORTS_64BIT_KERNEL 1596 select CPU_SUPPORTS_HUGEPAGES 1597 select CPU_HAS_LOAD_STORE_LR 1598 help 1599 MIPS Technologies R4000-series processors other than 4300, including 1600 the R4000, R4400, R4600, and 4700. 1601 1602config CPU_TX49XX 1603 bool "R49XX" 1604 depends on SYS_HAS_CPU_TX49XX 1605 select CPU_HAS_PREFETCH 1606 select CPU_HAS_LOAD_STORE_LR 1607 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_SUPPORTS_HUGEPAGES 1610 1611config CPU_R5000 1612 bool "R5000" 1613 depends on SYS_HAS_CPU_R5000 1614 select CPU_SUPPORTS_32BIT_KERNEL 1615 select CPU_SUPPORTS_64BIT_KERNEL 1616 select CPU_SUPPORTS_HUGEPAGES 1617 select CPU_HAS_LOAD_STORE_LR 1618 help 1619 MIPS Technologies R5000-series processors other than the Nevada. 1620 1621config CPU_R5432 1622 bool "R5432" 1623 depends on SYS_HAS_CPU_R5432 1624 select CPU_SUPPORTS_32BIT_KERNEL 1625 select CPU_SUPPORTS_64BIT_KERNEL 1626 select CPU_SUPPORTS_HUGEPAGES 1627 select CPU_HAS_LOAD_STORE_LR 1628 1629config CPU_R5500 1630 bool "R5500" 1631 depends on SYS_HAS_CPU_R5500 1632 select CPU_SUPPORTS_32BIT_KERNEL 1633 select CPU_SUPPORTS_64BIT_KERNEL 1634 select CPU_SUPPORTS_HUGEPAGES 1635 select CPU_HAS_LOAD_STORE_LR 1636 help 1637 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1638 instruction set. 1639 1640config CPU_NEVADA 1641 bool "RM52xx" 1642 depends on SYS_HAS_CPU_NEVADA 1643 select CPU_SUPPORTS_32BIT_KERNEL 1644 select CPU_SUPPORTS_64BIT_KERNEL 1645 select CPU_SUPPORTS_HUGEPAGES 1646 select CPU_HAS_LOAD_STORE_LR 1647 help 1648 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1649 1650config CPU_R8000 1651 bool "R8000" 1652 depends on SYS_HAS_CPU_R8000 1653 select CPU_HAS_PREFETCH 1654 select CPU_HAS_LOAD_STORE_LR 1655 select CPU_SUPPORTS_64BIT_KERNEL 1656 help 1657 MIPS Technologies R8000 processors. Note these processors are 1658 uncommon and the support for them is incomplete. 1659 1660config CPU_R10000 1661 bool "R10000" 1662 depends on SYS_HAS_CPU_R10000 1663 select CPU_HAS_PREFETCH 1664 select CPU_HAS_LOAD_STORE_LR 1665 select CPU_SUPPORTS_32BIT_KERNEL 1666 select CPU_SUPPORTS_64BIT_KERNEL 1667 select CPU_SUPPORTS_HIGHMEM 1668 select CPU_SUPPORTS_HUGEPAGES 1669 help 1670 MIPS Technologies R10000-series processors. 1671 1672config CPU_RM7000 1673 bool "RM7000" 1674 depends on SYS_HAS_CPU_RM7000 1675 select CPU_HAS_PREFETCH 1676 select CPU_HAS_LOAD_STORE_LR 1677 select CPU_SUPPORTS_32BIT_KERNEL 1678 select CPU_SUPPORTS_64BIT_KERNEL 1679 select CPU_SUPPORTS_HIGHMEM 1680 select CPU_SUPPORTS_HUGEPAGES 1681 1682config CPU_SB1 1683 bool "SB1" 1684 depends on SYS_HAS_CPU_SB1 1685 select CPU_HAS_LOAD_STORE_LR 1686 select CPU_SUPPORTS_32BIT_KERNEL 1687 select CPU_SUPPORTS_64BIT_KERNEL 1688 select CPU_SUPPORTS_HIGHMEM 1689 select CPU_SUPPORTS_HUGEPAGES 1690 select WEAK_ORDERING 1691 1692config CPU_CAVIUM_OCTEON 1693 bool "Cavium Octeon processor" 1694 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1695 select CPU_HAS_PREFETCH 1696 select CPU_HAS_LOAD_STORE_LR 1697 select CPU_SUPPORTS_64BIT_KERNEL 1698 select WEAK_ORDERING 1699 select CPU_SUPPORTS_HIGHMEM 1700 select CPU_SUPPORTS_HUGEPAGES 1701 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1702 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1703 select MIPS_L1_CACHE_SHIFT_7 1704 select HAVE_KVM 1705 help 1706 The Cavium Octeon processor is a highly integrated chip containing 1707 many ethernet hardware widgets for networking tasks. The processor 1708 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1709 Full details can be found at http://www.caviumnetworks.com. 1710 1711config CPU_BMIPS 1712 bool "Broadcom BMIPS" 1713 depends on SYS_HAS_CPU_BMIPS 1714 select CPU_MIPS32 1715 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1716 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1717 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1718 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1719 select CPU_SUPPORTS_32BIT_KERNEL 1720 select DMA_NONCOHERENT 1721 select IRQ_MIPS_CPU 1722 select SWAP_IO_SPACE 1723 select WEAK_ORDERING 1724 select CPU_SUPPORTS_HIGHMEM 1725 select CPU_HAS_PREFETCH 1726 select CPU_HAS_LOAD_STORE_LR 1727 select CPU_SUPPORTS_CPUFREQ 1728 select MIPS_EXTERNAL_TIMER 1729 help 1730 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1731 1732config CPU_XLR 1733 bool "Netlogic XLR SoC" 1734 depends on SYS_HAS_CPU_XLR 1735 select CPU_HAS_LOAD_STORE_LR 1736 select CPU_SUPPORTS_32BIT_KERNEL 1737 select CPU_SUPPORTS_64BIT_KERNEL 1738 select CPU_SUPPORTS_HIGHMEM 1739 select CPU_SUPPORTS_HUGEPAGES 1740 select WEAK_ORDERING 1741 select WEAK_REORDERING_BEYOND_LLSC 1742 help 1743 Netlogic Microsystems XLR/XLS processors. 1744 1745config CPU_XLP 1746 bool "Netlogic XLP SoC" 1747 depends on SYS_HAS_CPU_XLP 1748 select CPU_SUPPORTS_32BIT_KERNEL 1749 select CPU_SUPPORTS_64BIT_KERNEL 1750 select CPU_SUPPORTS_HIGHMEM 1751 select WEAK_ORDERING 1752 select WEAK_REORDERING_BEYOND_LLSC 1753 select CPU_HAS_PREFETCH 1754 select CPU_HAS_LOAD_STORE_LR 1755 select CPU_MIPSR2 1756 select CPU_SUPPORTS_HUGEPAGES 1757 select MIPS_ASID_BITS_VARIABLE 1758 help 1759 Netlogic Microsystems XLP processors. 1760endchoice 1761 1762config CPU_MIPS32_3_5_FEATURES 1763 bool "MIPS32 Release 3.5 Features" 1764 depends on SYS_HAS_CPU_MIPS32_R3_5 1765 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1766 help 1767 Choose this option to build a kernel for release 2 or later of the 1768 MIPS32 architecture including features from the 3.5 release such as 1769 support for Enhanced Virtual Addressing (EVA). 1770 1771config CPU_MIPS32_3_5_EVA 1772 bool "Enhanced Virtual Addressing (EVA)" 1773 depends on CPU_MIPS32_3_5_FEATURES 1774 select EVA 1775 default y 1776 help 1777 Choose this option if you want to enable the Enhanced Virtual 1778 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1779 One of its primary benefits is an increase in the maximum size 1780 of lowmem (up to 3GB). If unsure, say 'N' here. 1781 1782config CPU_MIPS32_R5_FEATURES 1783 bool "MIPS32 Release 5 Features" 1784 depends on SYS_HAS_CPU_MIPS32_R5 1785 depends on CPU_MIPS32_R2 1786 help 1787 Choose this option to build a kernel for release 2 or later of the 1788 MIPS32 architecture including features from release 5 such as 1789 support for Extended Physical Addressing (XPA). 1790 1791config CPU_MIPS32_R5_XPA 1792 bool "Extended Physical Addressing (XPA)" 1793 depends on CPU_MIPS32_R5_FEATURES 1794 depends on !EVA 1795 depends on !PAGE_SIZE_4KB 1796 depends on SYS_SUPPORTS_HIGHMEM 1797 select XPA 1798 select HIGHMEM 1799 select PHYS_ADDR_T_64BIT 1800 default n 1801 help 1802 Choose this option if you want to enable the Extended Physical 1803 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1804 benefit is to increase physical addressing equal to or greater 1805 than 40 bits. Note that this has the side effect of turning on 1806 64-bit addressing which in turn makes the PTEs 64-bit in size. 1807 If unsure, say 'N' here. 1808 1809if CPU_LOONGSON2F 1810config CPU_NOP_WORKAROUNDS 1811 bool 1812 1813config CPU_JUMP_WORKAROUNDS 1814 bool 1815 1816config CPU_LOONGSON2F_WORKAROUNDS 1817 bool "Loongson 2F Workarounds" 1818 default y 1819 select CPU_NOP_WORKAROUNDS 1820 select CPU_JUMP_WORKAROUNDS 1821 help 1822 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1823 require workarounds. Without workarounds the system may hang 1824 unexpectedly. For more information please refer to the gas 1825 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1826 1827 Loongson 2F03 and later have fixed these issues and no workarounds 1828 are needed. The workarounds have no significant side effect on them 1829 but may decrease the performance of the system so this option should 1830 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1831 systems. 1832 1833 If unsure, please say Y. 1834endif # CPU_LOONGSON2F 1835 1836config SYS_SUPPORTS_ZBOOT 1837 bool 1838 select HAVE_KERNEL_GZIP 1839 select HAVE_KERNEL_BZIP2 1840 select HAVE_KERNEL_LZ4 1841 select HAVE_KERNEL_LZMA 1842 select HAVE_KERNEL_LZO 1843 select HAVE_KERNEL_XZ 1844 1845config SYS_SUPPORTS_ZBOOT_UART16550 1846 bool 1847 select SYS_SUPPORTS_ZBOOT 1848 1849config SYS_SUPPORTS_ZBOOT_UART_PROM 1850 bool 1851 select SYS_SUPPORTS_ZBOOT 1852 1853config CPU_LOONGSON2 1854 bool 1855 select CPU_SUPPORTS_32BIT_KERNEL 1856 select CPU_SUPPORTS_64BIT_KERNEL 1857 select CPU_SUPPORTS_HIGHMEM 1858 select CPU_SUPPORTS_HUGEPAGES 1859 select ARCH_HAS_PHYS_TO_DMA 1860 select CPU_HAS_LOAD_STORE_LR 1861 1862config CPU_LOONGSON1 1863 bool 1864 select CPU_MIPS32 1865 select CPU_MIPSR1 1866 select CPU_HAS_PREFETCH 1867 select CPU_HAS_LOAD_STORE_LR 1868 select CPU_SUPPORTS_32BIT_KERNEL 1869 select CPU_SUPPORTS_HIGHMEM 1870 select CPU_SUPPORTS_CPUFREQ 1871 1872config CPU_BMIPS32_3300 1873 select SMP_UP if SMP 1874 bool 1875 1876config CPU_BMIPS4350 1877 bool 1878 select SYS_SUPPORTS_SMP 1879 select SYS_SUPPORTS_HOTPLUG_CPU 1880 1881config CPU_BMIPS4380 1882 bool 1883 select MIPS_L1_CACHE_SHIFT_6 1884 select SYS_SUPPORTS_SMP 1885 select SYS_SUPPORTS_HOTPLUG_CPU 1886 select CPU_HAS_RIXI 1887 1888config CPU_BMIPS5000 1889 bool 1890 select MIPS_CPU_SCACHE 1891 select MIPS_L1_CACHE_SHIFT_7 1892 select SYS_SUPPORTS_SMP 1893 select SYS_SUPPORTS_HOTPLUG_CPU 1894 select CPU_HAS_RIXI 1895 1896config SYS_HAS_CPU_LOONGSON3 1897 bool 1898 select CPU_SUPPORTS_CPUFREQ 1899 select CPU_HAS_RIXI 1900 1901config SYS_HAS_CPU_LOONGSON2E 1902 bool 1903 1904config SYS_HAS_CPU_LOONGSON2F 1905 bool 1906 select CPU_SUPPORTS_CPUFREQ 1907 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1908 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1909 1910config SYS_HAS_CPU_LOONGSON1B 1911 bool 1912 1913config SYS_HAS_CPU_LOONGSON1C 1914 bool 1915 1916config SYS_HAS_CPU_MIPS32_R1 1917 bool 1918 1919config SYS_HAS_CPU_MIPS32_R2 1920 bool 1921 1922config SYS_HAS_CPU_MIPS32_R3_5 1923 bool 1924 1925config SYS_HAS_CPU_MIPS32_R5 1926 bool 1927 1928config SYS_HAS_CPU_MIPS32_R6 1929 bool 1930 1931config SYS_HAS_CPU_MIPS64_R1 1932 bool 1933 1934config SYS_HAS_CPU_MIPS64_R2 1935 bool 1936 1937config SYS_HAS_CPU_MIPS64_R6 1938 bool 1939 1940config SYS_HAS_CPU_R3000 1941 bool 1942 1943config SYS_HAS_CPU_TX39XX 1944 bool 1945 1946config SYS_HAS_CPU_VR41XX 1947 bool 1948 1949config SYS_HAS_CPU_R4300 1950 bool 1951 1952config SYS_HAS_CPU_R4X00 1953 bool 1954 1955config SYS_HAS_CPU_TX49XX 1956 bool 1957 1958config SYS_HAS_CPU_R5000 1959 bool 1960 1961config SYS_HAS_CPU_R5432 1962 bool 1963 1964config SYS_HAS_CPU_R5500 1965 bool 1966 1967config SYS_HAS_CPU_NEVADA 1968 bool 1969 1970config SYS_HAS_CPU_R8000 1971 bool 1972 1973config SYS_HAS_CPU_R10000 1974 bool 1975 1976config SYS_HAS_CPU_RM7000 1977 bool 1978 1979config SYS_HAS_CPU_SB1 1980 bool 1981 1982config SYS_HAS_CPU_CAVIUM_OCTEON 1983 bool 1984 1985config SYS_HAS_CPU_BMIPS 1986 bool 1987 1988config SYS_HAS_CPU_BMIPS32_3300 1989 bool 1990 select SYS_HAS_CPU_BMIPS 1991 1992config SYS_HAS_CPU_BMIPS4350 1993 bool 1994 select SYS_HAS_CPU_BMIPS 1995 1996config SYS_HAS_CPU_BMIPS4380 1997 bool 1998 select SYS_HAS_CPU_BMIPS 1999 2000config SYS_HAS_CPU_BMIPS5000 2001 bool 2002 select SYS_HAS_CPU_BMIPS 2003 2004config SYS_HAS_CPU_XLR 2005 bool 2006 2007config SYS_HAS_CPU_XLP 2008 bool 2009 2010# 2011# CPU may reorder R->R, R->W, W->R, W->W 2012# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2013# 2014config WEAK_ORDERING 2015 bool 2016 2017# 2018# CPU may reorder reads and writes beyond LL/SC 2019# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2020# 2021config WEAK_REORDERING_BEYOND_LLSC 2022 bool 2023endmenu 2024 2025# 2026# These two indicate any level of the MIPS32 and MIPS64 architecture 2027# 2028config CPU_MIPS32 2029 bool 2030 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2031 2032config CPU_MIPS64 2033 bool 2034 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2035 2036# 2037# These two indicate the revision of the architecture, either Release 1 or Release 2 2038# 2039config CPU_MIPSR1 2040 bool 2041 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2042 2043config CPU_MIPSR2 2044 bool 2045 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2046 select CPU_HAS_RIXI 2047 select MIPS_SPRAM 2048 2049config CPU_MIPSR6 2050 bool 2051 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2052 select CPU_HAS_RIXI 2053 select HAVE_ARCH_BITREVERSE 2054 select MIPS_ASID_BITS_VARIABLE 2055 select MIPS_CRC_SUPPORT 2056 select MIPS_SPRAM 2057 2058config EVA 2059 bool 2060 2061config XPA 2062 bool 2063 2064config SYS_SUPPORTS_32BIT_KERNEL 2065 bool 2066config SYS_SUPPORTS_64BIT_KERNEL 2067 bool 2068config CPU_SUPPORTS_32BIT_KERNEL 2069 bool 2070config CPU_SUPPORTS_64BIT_KERNEL 2071 bool 2072config CPU_SUPPORTS_CPUFREQ 2073 bool 2074config CPU_SUPPORTS_ADDRWINCFG 2075 bool 2076config CPU_SUPPORTS_HUGEPAGES 2077 bool 2078config CPU_SUPPORTS_UNCACHED_ACCELERATED 2079 bool 2080config MIPS_PGD_C0_CONTEXT 2081 bool 2082 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2083 2084# 2085# Set to y for ptrace access to watch registers. 2086# 2087config HARDWARE_WATCHPOINTS 2088 bool 2089 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2090 2091menu "Kernel type" 2092 2093choice 2094 prompt "Kernel code model" 2095 help 2096 You should only select this option if you have a workload that 2097 actually benefits from 64-bit processing or if your machine has 2098 large memory. You will only be presented a single option in this 2099 menu if your system does not support both 32-bit and 64-bit kernels. 2100 2101config 32BIT 2102 bool "32-bit kernel" 2103 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2104 select TRAD_SIGNALS 2105 help 2106 Select this option if you want to build a 32-bit kernel. 2107 2108config 64BIT 2109 bool "64-bit kernel" 2110 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2111 help 2112 Select this option if you want to build a 64-bit kernel. 2113 2114endchoice 2115 2116config KVM_GUEST 2117 bool "KVM Guest Kernel" 2118 depends on BROKEN_ON_SMP 2119 help 2120 Select this option if building a guest kernel for KVM (Trap & Emulate) 2121 mode. 2122 2123config KVM_GUEST_TIMER_FREQ 2124 int "Count/Compare Timer Frequency (MHz)" 2125 depends on KVM_GUEST 2126 default 100 2127 help 2128 Set this to non-zero if building a guest kernel for KVM to skip RTC 2129 emulation when determining guest CPU Frequency. Instead, the guest's 2130 timer frequency is specified directly. 2131 2132config MIPS_VA_BITS_48 2133 bool "48 bits virtual memory" 2134 depends on 64BIT 2135 help 2136 Support a maximum at least 48 bits of application virtual 2137 memory. Default is 40 bits or less, depending on the CPU. 2138 For page sizes 16k and above, this option results in a small 2139 memory overhead for page tables. For 4k page size, a fourth 2140 level of page tables is added which imposes both a memory 2141 overhead as well as slower TLB fault handling. 2142 2143 If unsure, say N. 2144 2145choice 2146 prompt "Kernel page size" 2147 default PAGE_SIZE_4KB 2148 2149config PAGE_SIZE_4KB 2150 bool "4kB" 2151 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2152 help 2153 This option select the standard 4kB Linux page size. On some 2154 R3000-family processors this is the only available page size. Using 2155 4kB page size will minimize memory consumption and is therefore 2156 recommended for low memory systems. 2157 2158config PAGE_SIZE_8KB 2159 bool "8kB" 2160 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2161 depends on !MIPS_VA_BITS_48 2162 help 2163 Using 8kB page size will result in higher performance kernel at 2164 the price of higher memory consumption. This option is available 2165 only on R8000 and cnMIPS processors. Note that you will need a 2166 suitable Linux distribution to support this. 2167 2168config PAGE_SIZE_16KB 2169 bool "16kB" 2170 depends on !CPU_R3000 && !CPU_TX39XX 2171 help 2172 Using 16kB page size will result in higher performance kernel at 2173 the price of higher memory consumption. This option is available on 2174 all non-R3000 family processors. Note that you will need a suitable 2175 Linux distribution to support this. 2176 2177config PAGE_SIZE_32KB 2178 bool "32kB" 2179 depends on CPU_CAVIUM_OCTEON 2180 depends on !MIPS_VA_BITS_48 2181 help 2182 Using 32kB page size will result in higher performance kernel at 2183 the price of higher memory consumption. This option is available 2184 only on cnMIPS cores. Note that you will need a suitable Linux 2185 distribution to support this. 2186 2187config PAGE_SIZE_64KB 2188 bool "64kB" 2189 depends on !CPU_R3000 && !CPU_TX39XX 2190 help 2191 Using 64kB page size will result in higher performance kernel at 2192 the price of higher memory consumption. This option is available on 2193 all non-R3000 family processor. Not that at the time of this 2194 writing this option is still high experimental. 2195 2196endchoice 2197 2198config FORCE_MAX_ZONEORDER 2199 int "Maximum zone order" 2200 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2201 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2202 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2203 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2204 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2205 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2206 range 11 64 2207 default "11" 2208 help 2209 The kernel memory allocator divides physically contiguous memory 2210 blocks into "zones", where each zone is a power of two number of 2211 pages. This option selects the largest power of two that the kernel 2212 keeps in the memory allocator. If you need to allocate very large 2213 blocks of physically contiguous memory, then you may need to 2214 increase this value. 2215 2216 This config option is actually maximum order plus one. For example, 2217 a value of 11 means that the largest free memory block is 2^10 pages. 2218 2219 The page size is not necessarily 4KB. Keep this in mind 2220 when choosing a value for this option. 2221 2222config BOARD_SCACHE 2223 bool 2224 2225config IP22_CPU_SCACHE 2226 bool 2227 select BOARD_SCACHE 2228 2229# 2230# Support for a MIPS32 / MIPS64 style S-caches 2231# 2232config MIPS_CPU_SCACHE 2233 bool 2234 select BOARD_SCACHE 2235 2236config R5000_CPU_SCACHE 2237 bool 2238 select BOARD_SCACHE 2239 2240config RM7000_CPU_SCACHE 2241 bool 2242 select BOARD_SCACHE 2243 2244config SIBYTE_DMA_PAGEOPS 2245 bool "Use DMA to clear/copy pages" 2246 depends on CPU_SB1 2247 help 2248 Instead of using the CPU to zero and copy pages, use a Data Mover 2249 channel. These DMA channels are otherwise unused by the standard 2250 SiByte Linux port. Seems to give a small performance benefit. 2251 2252config CPU_HAS_PREFETCH 2253 bool 2254 2255config CPU_GENERIC_DUMP_TLB 2256 bool 2257 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2258 2259config CPU_R4K_FPU 2260 bool 2261 default y if !(CPU_R3000 || CPU_TX39XX) 2262 2263config CPU_R4K_CACHE_TLB 2264 bool 2265 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2266 2267config MIPS_MT_SMP 2268 bool "MIPS MT SMP support (1 TC on each available VPE)" 2269 default y 2270 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2271 select CPU_MIPSR2_IRQ_VI 2272 select CPU_MIPSR2_IRQ_EI 2273 select SYNC_R4K 2274 select MIPS_MT 2275 select SMP 2276 select SMP_UP 2277 select SYS_SUPPORTS_SMP 2278 select SYS_SUPPORTS_SCHED_SMT 2279 select MIPS_PERF_SHARED_TC_COUNTERS 2280 help 2281 This is a kernel model which is known as SMVP. This is supported 2282 on cores with the MT ASE and uses the available VPEs to implement 2283 virtual processors which supports SMP. This is equivalent to the 2284 Intel Hyperthreading feature. For further information go to 2285 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2286 2287config MIPS_MT 2288 bool 2289 2290config SCHED_SMT 2291 bool "SMT (multithreading) scheduler support" 2292 depends on SYS_SUPPORTS_SCHED_SMT 2293 default n 2294 help 2295 SMT scheduler support improves the CPU scheduler's decision making 2296 when dealing with MIPS MT enabled cores at a cost of slightly 2297 increased overhead in some places. If unsure say N here. 2298 2299config SYS_SUPPORTS_SCHED_SMT 2300 bool 2301 2302config SYS_SUPPORTS_MULTITHREADING 2303 bool 2304 2305config MIPS_MT_FPAFF 2306 bool "Dynamic FPU affinity for FP-intensive threads" 2307 default y 2308 depends on MIPS_MT_SMP 2309 2310config MIPSR2_TO_R6_EMULATOR 2311 bool "MIPS R2-to-R6 emulator" 2312 depends on CPU_MIPSR6 2313 default y 2314 help 2315 Choose this option if you want to run non-R6 MIPS userland code. 2316 Even if you say 'Y' here, the emulator will still be disabled by 2317 default. You can enable it using the 'mipsr2emu' kernel option. 2318 The only reason this is a build-time option is to save ~14K from the 2319 final kernel image. 2320 2321config SYS_SUPPORTS_VPE_LOADER 2322 bool 2323 depends on SYS_SUPPORTS_MULTITHREADING 2324 help 2325 Indicates that the platform supports the VPE loader, and provides 2326 physical_memsize. 2327 2328config MIPS_VPE_LOADER 2329 bool "VPE loader support." 2330 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2331 select CPU_MIPSR2_IRQ_VI 2332 select CPU_MIPSR2_IRQ_EI 2333 select MIPS_MT 2334 help 2335 Includes a loader for loading an elf relocatable object 2336 onto another VPE and running it. 2337 2338config MIPS_VPE_LOADER_CMP 2339 bool 2340 default "y" 2341 depends on MIPS_VPE_LOADER && MIPS_CMP 2342 2343config MIPS_VPE_LOADER_MT 2344 bool 2345 default "y" 2346 depends on MIPS_VPE_LOADER && !MIPS_CMP 2347 2348config MIPS_VPE_LOADER_TOM 2349 bool "Load VPE program into memory hidden from linux" 2350 depends on MIPS_VPE_LOADER 2351 default y 2352 help 2353 The loader can use memory that is present but has been hidden from 2354 Linux using the kernel command line option "mem=xxMB". It's up to 2355 you to ensure the amount you put in the option and the space your 2356 program requires is less or equal to the amount physically present. 2357 2358config MIPS_VPE_APSP_API 2359 bool "Enable support for AP/SP API (RTLX)" 2360 depends on MIPS_VPE_LOADER 2361 2362config MIPS_VPE_APSP_API_CMP 2363 bool 2364 default "y" 2365 depends on MIPS_VPE_APSP_API && MIPS_CMP 2366 2367config MIPS_VPE_APSP_API_MT 2368 bool 2369 default "y" 2370 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2371 2372config MIPS_CMP 2373 bool "MIPS CMP framework support (DEPRECATED)" 2374 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2375 select SMP 2376 select SYNC_R4K 2377 select SYS_SUPPORTS_SMP 2378 select WEAK_ORDERING 2379 default n 2380 help 2381 Select this if you are using a bootloader which implements the "CMP 2382 framework" protocol (ie. YAMON) and want your kernel to make use of 2383 its ability to start secondary CPUs. 2384 2385 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2386 instead of this. 2387 2388config MIPS_CPS 2389 bool "MIPS Coherent Processing System support" 2390 depends on SYS_SUPPORTS_MIPS_CPS 2391 select MIPS_CM 2392 select MIPS_CPS_PM if HOTPLUG_CPU 2393 select SMP 2394 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2395 select SYS_SUPPORTS_HOTPLUG_CPU 2396 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2397 select SYS_SUPPORTS_SMP 2398 select WEAK_ORDERING 2399 help 2400 Select this if you wish to run an SMP kernel across multiple cores 2401 within a MIPS Coherent Processing System. When this option is 2402 enabled the kernel will probe for other cores and boot them with 2403 no external assistance. It is safe to enable this when hardware 2404 support is unavailable. 2405 2406config MIPS_CPS_PM 2407 depends on MIPS_CPS 2408 bool 2409 2410config MIPS_CM 2411 bool 2412 select MIPS_CPC 2413 2414config MIPS_CPC 2415 bool 2416 2417config SB1_PASS_2_WORKAROUNDS 2418 bool 2419 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2420 default y 2421 2422config SB1_PASS_2_1_WORKAROUNDS 2423 bool 2424 depends on CPU_SB1 && CPU_SB1_PASS_2 2425 default y 2426 2427 2428choice 2429 prompt "SmartMIPS or microMIPS ASE support" 2430 2431config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2432 bool "None" 2433 help 2434 Select this if you want neither microMIPS nor SmartMIPS support 2435 2436config CPU_HAS_SMARTMIPS 2437 depends on SYS_SUPPORTS_SMARTMIPS 2438 bool "SmartMIPS" 2439 help 2440 SmartMIPS is a extension of the MIPS32 architecture aimed at 2441 increased security at both hardware and software level for 2442 smartcards. Enabling this option will allow proper use of the 2443 SmartMIPS instructions by Linux applications. However a kernel with 2444 this option will not work on a MIPS core without SmartMIPS core. If 2445 you don't know you probably don't have SmartMIPS and should say N 2446 here. 2447 2448config CPU_MICROMIPS 2449 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2450 bool "microMIPS" 2451 help 2452 When this option is enabled the kernel will be built using the 2453 microMIPS ISA 2454 2455endchoice 2456 2457config CPU_HAS_MSA 2458 bool "Support for the MIPS SIMD Architecture" 2459 depends on CPU_SUPPORTS_MSA 2460 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2461 help 2462 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2463 and a set of SIMD instructions to operate on them. When this option 2464 is enabled the kernel will support allocating & switching MSA 2465 vector register contexts. If you know that your kernel will only be 2466 running on CPUs which do not support MSA or that your userland will 2467 not be making use of it then you may wish to say N here to reduce 2468 the size & complexity of your kernel. 2469 2470 If unsure, say Y. 2471 2472config CPU_HAS_WB 2473 bool 2474 2475config XKS01 2476 bool 2477 2478config CPU_HAS_RIXI 2479 bool 2480 2481config CPU_HAS_LOAD_STORE_LR 2482 bool 2483 help 2484 CPU has support for unaligned load and store instructions: 2485 LWL, LWR, SWL, SWR (Load/store word left/right). 2486 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2487 2488# 2489# Vectored interrupt mode is an R2 feature 2490# 2491config CPU_MIPSR2_IRQ_VI 2492 bool 2493 2494# 2495# Extended interrupt mode is an R2 feature 2496# 2497config CPU_MIPSR2_IRQ_EI 2498 bool 2499 2500config CPU_HAS_SYNC 2501 bool 2502 depends on !CPU_R3000 2503 default y 2504 2505# 2506# CPU non-features 2507# 2508config CPU_DADDI_WORKAROUNDS 2509 bool 2510 2511config CPU_R4000_WORKAROUNDS 2512 bool 2513 select CPU_R4400_WORKAROUNDS 2514 2515config CPU_R4400_WORKAROUNDS 2516 bool 2517 2518config MIPS_ASID_SHIFT 2519 int 2520 default 6 if CPU_R3000 || CPU_TX39XX 2521 default 4 if CPU_R8000 2522 default 0 2523 2524config MIPS_ASID_BITS 2525 int 2526 default 0 if MIPS_ASID_BITS_VARIABLE 2527 default 6 if CPU_R3000 || CPU_TX39XX 2528 default 8 2529 2530config MIPS_ASID_BITS_VARIABLE 2531 bool 2532 2533config MIPS_CRC_SUPPORT 2534 bool 2535 2536# 2537# - Highmem only makes sense for the 32-bit kernel. 2538# - The current highmem code will only work properly on physically indexed 2539# caches such as R3000, SB1, R7000 or those that look like they're virtually 2540# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2541# moment we protect the user and offer the highmem option only on machines 2542# where it's known to be safe. This will not offer highmem on a few systems 2543# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2544# indexed CPUs but we're playing safe. 2545# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2546# know they might have memory configurations that could make use of highmem 2547# support. 2548# 2549config HIGHMEM 2550 bool "High Memory Support" 2551 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2552 2553config CPU_SUPPORTS_HIGHMEM 2554 bool 2555 2556config SYS_SUPPORTS_HIGHMEM 2557 bool 2558 2559config SYS_SUPPORTS_SMARTMIPS 2560 bool 2561 2562config SYS_SUPPORTS_MICROMIPS 2563 bool 2564 2565config SYS_SUPPORTS_MIPS16 2566 bool 2567 help 2568 This option must be set if a kernel might be executed on a MIPS16- 2569 enabled CPU even if MIPS16 is not actually being used. In other 2570 words, it makes the kernel MIPS16-tolerant. 2571 2572config CPU_SUPPORTS_MSA 2573 bool 2574 2575config ARCH_FLATMEM_ENABLE 2576 def_bool y 2577 depends on !NUMA && !CPU_LOONGSON2 2578 2579config ARCH_DISCONTIGMEM_ENABLE 2580 bool 2581 default y if SGI_IP27 2582 help 2583 Say Y to support efficient handling of discontiguous physical memory, 2584 for architectures which are either NUMA (Non-Uniform Memory Access) 2585 or have huge holes in the physical address space for other reasons. 2586 See <file:Documentation/vm/numa.rst> for more. 2587 2588config ARCH_SPARSEMEM_ENABLE 2589 bool 2590 select SPARSEMEM_STATIC 2591 2592config NUMA 2593 bool "NUMA Support" 2594 depends on SYS_SUPPORTS_NUMA 2595 help 2596 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2597 Access). This option improves performance on systems with more 2598 than two nodes; on two node systems it is generally better to 2599 leave it disabled; on single node systems disable this option 2600 disabled. 2601 2602config SYS_SUPPORTS_NUMA 2603 bool 2604 2605config RELOCATABLE 2606 bool "Relocatable kernel" 2607 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2608 help 2609 This builds a kernel image that retains relocation information 2610 so it can be loaded someplace besides the default 1MB. 2611 The relocations make the kernel binary about 15% larger, 2612 but are discarded at runtime 2613 2614config RELOCATION_TABLE_SIZE 2615 hex "Relocation table size" 2616 depends on RELOCATABLE 2617 range 0x0 0x01000000 2618 default "0x00100000" 2619 ---help--- 2620 A table of relocation data will be appended to the kernel binary 2621 and parsed at boot to fix up the relocated kernel. 2622 2623 This option allows the amount of space reserved for the table to be 2624 adjusted, although the default of 1Mb should be ok in most cases. 2625 2626 The build will fail and a valid size suggested if this is too small. 2627 2628 If unsure, leave at the default value. 2629 2630config RANDOMIZE_BASE 2631 bool "Randomize the address of the kernel image" 2632 depends on RELOCATABLE 2633 ---help--- 2634 Randomizes the physical and virtual address at which the 2635 kernel image is loaded, as a security feature that 2636 deters exploit attempts relying on knowledge of the location 2637 of kernel internals. 2638 2639 Entropy is generated using any coprocessor 0 registers available. 2640 2641 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2642 2643 If unsure, say N. 2644 2645config RANDOMIZE_BASE_MAX_OFFSET 2646 hex "Maximum kASLR offset" if EXPERT 2647 depends on RANDOMIZE_BASE 2648 range 0x0 0x40000000 if EVA || 64BIT 2649 range 0x0 0x08000000 2650 default "0x01000000" 2651 ---help--- 2652 When kASLR is active, this provides the maximum offset that will 2653 be applied to the kernel image. It should be set according to the 2654 amount of physical RAM available in the target system minus 2655 PHYSICAL_START and must be a power of 2. 2656 2657 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2658 EVA or 64-bit. The default is 16Mb. 2659 2660config NODES_SHIFT 2661 int 2662 default "6" 2663 depends on NEED_MULTIPLE_NODES 2664 2665config HW_PERF_EVENTS 2666 bool "Enable hardware performance counter support for perf events" 2667 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2668 default y 2669 help 2670 Enable hardware performance counter support for perf events. If 2671 disabled, perf events will use software events only. 2672 2673config SMP 2674 bool "Multi-Processing support" 2675 depends on SYS_SUPPORTS_SMP 2676 help 2677 This enables support for systems with more than one CPU. If you have 2678 a system with only one CPU, say N. If you have a system with more 2679 than one CPU, say Y. 2680 2681 If you say N here, the kernel will run on uni- and multiprocessor 2682 machines, but will use only one CPU of a multiprocessor machine. If 2683 you say Y here, the kernel will run on many, but not all, 2684 uniprocessor machines. On a uniprocessor machine, the kernel 2685 will run faster if you say N here. 2686 2687 People using multiprocessor machines who say Y here should also say 2688 Y to "Enhanced Real Time Clock Support", below. 2689 2690 See also the SMP-HOWTO available at 2691 <http://www.tldp.org/docs.html#howto>. 2692 2693 If you don't know what to do here, say N. 2694 2695config HOTPLUG_CPU 2696 bool "Support for hot-pluggable CPUs" 2697 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2698 help 2699 Say Y here to allow turning CPUs off and on. CPUs can be 2700 controlled through /sys/devices/system/cpu. 2701 (Note: power management support will enable this option 2702 automatically on SMP systems. ) 2703 Say N if you want to disable CPU hotplug. 2704 2705config SMP_UP 2706 bool 2707 2708config SYS_SUPPORTS_MIPS_CMP 2709 bool 2710 2711config SYS_SUPPORTS_MIPS_CPS 2712 bool 2713 2714config SYS_SUPPORTS_SMP 2715 bool 2716 2717config NR_CPUS_DEFAULT_4 2718 bool 2719 2720config NR_CPUS_DEFAULT_8 2721 bool 2722 2723config NR_CPUS_DEFAULT_16 2724 bool 2725 2726config NR_CPUS_DEFAULT_32 2727 bool 2728 2729config NR_CPUS_DEFAULT_64 2730 bool 2731 2732config NR_CPUS 2733 int "Maximum number of CPUs (2-256)" 2734 range 2 256 2735 depends on SMP 2736 default "4" if NR_CPUS_DEFAULT_4 2737 default "8" if NR_CPUS_DEFAULT_8 2738 default "16" if NR_CPUS_DEFAULT_16 2739 default "32" if NR_CPUS_DEFAULT_32 2740 default "64" if NR_CPUS_DEFAULT_64 2741 help 2742 This allows you to specify the maximum number of CPUs which this 2743 kernel will support. The maximum supported value is 32 for 32-bit 2744 kernel and 64 for 64-bit kernels; the minimum value which makes 2745 sense is 1 for Qemu (useful only for kernel debugging purposes) 2746 and 2 for all others. 2747 2748 This is purely to save memory - each supported CPU adds 2749 approximately eight kilobytes to the kernel image. For best 2750 performance should round up your number of processors to the next 2751 power of two. 2752 2753config MIPS_PERF_SHARED_TC_COUNTERS 2754 bool 2755 2756config MIPS_NR_CPU_NR_MAP_1024 2757 bool 2758 2759config MIPS_NR_CPU_NR_MAP 2760 int 2761 depends on SMP 2762 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2763 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2764 2765# 2766# Timer Interrupt Frequency Configuration 2767# 2768 2769choice 2770 prompt "Timer frequency" 2771 default HZ_250 2772 help 2773 Allows the configuration of the timer frequency. 2774 2775 config HZ_24 2776 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2777 2778 config HZ_48 2779 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2780 2781 config HZ_100 2782 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2783 2784 config HZ_128 2785 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2786 2787 config HZ_250 2788 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2789 2790 config HZ_256 2791 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2792 2793 config HZ_1000 2794 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2795 2796 config HZ_1024 2797 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2798 2799endchoice 2800 2801config SYS_SUPPORTS_24HZ 2802 bool 2803 2804config SYS_SUPPORTS_48HZ 2805 bool 2806 2807config SYS_SUPPORTS_100HZ 2808 bool 2809 2810config SYS_SUPPORTS_128HZ 2811 bool 2812 2813config SYS_SUPPORTS_250HZ 2814 bool 2815 2816config SYS_SUPPORTS_256HZ 2817 bool 2818 2819config SYS_SUPPORTS_1000HZ 2820 bool 2821 2822config SYS_SUPPORTS_1024HZ 2823 bool 2824 2825config SYS_SUPPORTS_ARBIT_HZ 2826 bool 2827 default y if !SYS_SUPPORTS_24HZ && \ 2828 !SYS_SUPPORTS_48HZ && \ 2829 !SYS_SUPPORTS_100HZ && \ 2830 !SYS_SUPPORTS_128HZ && \ 2831 !SYS_SUPPORTS_250HZ && \ 2832 !SYS_SUPPORTS_256HZ && \ 2833 !SYS_SUPPORTS_1000HZ && \ 2834 !SYS_SUPPORTS_1024HZ 2835 2836config HZ 2837 int 2838 default 24 if HZ_24 2839 default 48 if HZ_48 2840 default 100 if HZ_100 2841 default 128 if HZ_128 2842 default 250 if HZ_250 2843 default 256 if HZ_256 2844 default 1000 if HZ_1000 2845 default 1024 if HZ_1024 2846 2847config SCHED_HRTICK 2848 def_bool HIGH_RES_TIMERS 2849 2850config KEXEC 2851 bool "Kexec system call" 2852 select KEXEC_CORE 2853 help 2854 kexec is a system call that implements the ability to shutdown your 2855 current kernel, and to start another kernel. It is like a reboot 2856 but it is independent of the system firmware. And like a reboot 2857 you can start any kernel with it, not just Linux. 2858 2859 The name comes from the similarity to the exec system call. 2860 2861 It is an ongoing process to be certain the hardware in a machine 2862 is properly shutdown, so do not be surprised if this code does not 2863 initially work for you. As of this writing the exact hardware 2864 interface is strongly in flux, so no good recommendation can be 2865 made. 2866 2867config CRASH_DUMP 2868 bool "Kernel crash dumps" 2869 help 2870 Generate crash dump after being started by kexec. 2871 This should be normally only set in special crash dump kernels 2872 which are loaded in the main kernel with kexec-tools into 2873 a specially reserved region and then later executed after 2874 a crash by kdump/kexec. The crash dump kernel must be compiled 2875 to a memory address not used by the main kernel or firmware using 2876 PHYSICAL_START. 2877 2878config PHYSICAL_START 2879 hex "Physical address where the kernel is loaded" 2880 default "0xffffffff84000000" 2881 depends on CRASH_DUMP 2882 help 2883 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2884 If you plan to use kernel for capturing the crash dump change 2885 this value to start of the reserved region (the "X" value as 2886 specified in the "crashkernel=YM@XM" command line boot parameter 2887 passed to the panic-ed kernel). 2888 2889config SECCOMP 2890 bool "Enable seccomp to safely compute untrusted bytecode" 2891 depends on PROC_FS 2892 default y 2893 help 2894 This kernel feature is useful for number crunching applications 2895 that may need to compute untrusted bytecode during their 2896 execution. By using pipes or other transports made available to 2897 the process as file descriptors supporting the read/write 2898 syscalls, it's possible to isolate those applications in 2899 their own address space using seccomp. Once seccomp is 2900 enabled via /proc/<pid>/seccomp, it cannot be disabled 2901 and the task is only allowed to execute a few safe syscalls 2902 defined by each seccomp mode. 2903 2904 If unsure, say Y. Only embedded should say N here. 2905 2906config MIPS_O32_FP64_SUPPORT 2907 bool "Support for O32 binaries using 64-bit FP" 2908 depends on 32BIT || MIPS32_O32 2909 help 2910 When this is enabled, the kernel will support use of 64-bit floating 2911 point registers with binaries using the O32 ABI along with the 2912 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2913 32-bit MIPS systems this support is at the cost of increasing the 2914 size and complexity of the compiled FPU emulator. Thus if you are 2915 running a MIPS32 system and know that none of your userland binaries 2916 will require 64-bit floating point, you may wish to reduce the size 2917 of your kernel & potentially improve FP emulation performance by 2918 saying N here. 2919 2920 Although binutils currently supports use of this flag the details 2921 concerning its effect upon the O32 ABI in userland are still being 2922 worked on. In order to avoid userland becoming dependant upon current 2923 behaviour before the details have been finalised, this option should 2924 be considered experimental and only enabled by those working upon 2925 said details. 2926 2927 If unsure, say N. 2928 2929config USE_OF 2930 bool 2931 select OF 2932 select OF_EARLY_FLATTREE 2933 select IRQ_DOMAIN 2934 2935config UHI_BOOT 2936 bool 2937 2938config BUILTIN_DTB 2939 bool 2940 2941choice 2942 prompt "Kernel appended dtb support" if USE_OF 2943 default MIPS_NO_APPENDED_DTB 2944 2945 config MIPS_NO_APPENDED_DTB 2946 bool "None" 2947 help 2948 Do not enable appended dtb support. 2949 2950 config MIPS_ELF_APPENDED_DTB 2951 bool "vmlinux" 2952 help 2953 With this option, the boot code will look for a device tree binary 2954 DTB) included in the vmlinux ELF section .appended_dtb. By default 2955 it is empty and the DTB can be appended using binutils command 2956 objcopy: 2957 2958 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2959 2960 This is meant as a backward compatiblity convenience for those 2961 systems with a bootloader that can't be upgraded to accommodate 2962 the documented boot protocol using a device tree. 2963 2964 config MIPS_RAW_APPENDED_DTB 2965 bool "vmlinux.bin or vmlinuz.bin" 2966 help 2967 With this option, the boot code will look for a device tree binary 2968 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2969 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2970 2971 This is meant as a backward compatibility convenience for those 2972 systems with a bootloader that can't be upgraded to accommodate 2973 the documented boot protocol using a device tree. 2974 2975 Beware that there is very little in terms of protection against 2976 this option being confused by leftover garbage in memory that might 2977 look like a DTB header after a reboot if no actual DTB is appended 2978 to vmlinux.bin. Do not leave this option active in a production kernel 2979 if you don't intend to always append a DTB. 2980endchoice 2981 2982choice 2983 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2984 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2985 !MIPS_MALTA && \ 2986 !CAVIUM_OCTEON_SOC 2987 default MIPS_CMDLINE_FROM_BOOTLOADER 2988 2989 config MIPS_CMDLINE_FROM_DTB 2990 depends on USE_OF 2991 bool "Dtb kernel arguments if available" 2992 2993 config MIPS_CMDLINE_DTB_EXTEND 2994 depends on USE_OF 2995 bool "Extend dtb kernel arguments with bootloader arguments" 2996 2997 config MIPS_CMDLINE_FROM_BOOTLOADER 2998 bool "Bootloader kernel arguments if available" 2999 3000 config MIPS_CMDLINE_BUILTIN_EXTEND 3001 depends on CMDLINE_BOOL 3002 bool "Extend builtin kernel arguments with bootloader arguments" 3003endchoice 3004 3005endmenu 3006 3007config LOCKDEP_SUPPORT 3008 bool 3009 default y 3010 3011config STACKTRACE_SUPPORT 3012 bool 3013 default y 3014 3015config HAVE_LATENCYTOP_SUPPORT 3016 bool 3017 default y 3018 3019config PGTABLE_LEVELS 3020 int 3021 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3022 default 3 if 64BIT && !PAGE_SIZE_64KB 3023 default 2 3024 3025config MIPS_AUTO_PFN_OFFSET 3026 bool 3027 3028menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3029 3030config HW_HAS_EISA 3031 bool 3032config HW_HAS_PCI 3033 bool 3034 3035config PCI 3036 bool "Support for PCI controller" 3037 depends on HW_HAS_PCI 3038 select PCI_DOMAINS 3039 help 3040 Find out whether you have a PCI motherboard. PCI is the name of a 3041 bus system, i.e. the way the CPU talks to the other stuff inside 3042 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3043 say Y, otherwise N. 3044 3045config HT_PCI 3046 bool "Support for HT-linked PCI" 3047 default y 3048 depends on CPU_LOONGSON3 3049 select PCI 3050 select PCI_DOMAINS 3051 help 3052 Loongson family machines use Hyper-Transport bus for inter-core 3053 connection and device connection. The PCI bus is a subordinate 3054 linked at HT. Choose Y for Loongson-3 based machines. 3055 3056config PCI_DOMAINS 3057 bool 3058 3059config PCI_DOMAINS_GENERIC 3060 bool 3061 3062config PCI_DRIVERS_GENERIC 3063 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3064 bool 3065 3066config PCI_DRIVERS_LEGACY 3067 def_bool !PCI_DRIVERS_GENERIC 3068 select NO_GENERIC_PCI_IOPORT_MAP 3069 3070source "drivers/pci/Kconfig" 3071 3072# 3073# ISA support is now enabled via select. Too many systems still have the one 3074# or other ISA chip on the board that users don't know about so don't expect 3075# users to choose the right thing ... 3076# 3077config ISA 3078 bool 3079 3080config EISA 3081 bool "EISA support" 3082 depends on HW_HAS_EISA 3083 select ISA 3084 select GENERIC_ISA_DMA 3085 ---help--- 3086 The Extended Industry Standard Architecture (EISA) bus was 3087 developed as an open alternative to the IBM MicroChannel bus. 3088 3089 The EISA bus provided some of the features of the IBM MicroChannel 3090 bus while maintaining backward compatibility with cards made for 3091 the older ISA bus. The EISA bus saw limited use between 1988 and 3092 1995 when it was made obsolete by the PCI bus. 3093 3094 Say Y here if you are building a kernel for an EISA-based machine. 3095 3096 Otherwise, say N. 3097 3098source "drivers/eisa/Kconfig" 3099 3100config TC 3101 bool "TURBOchannel support" 3102 depends on MACH_DECSTATION 3103 help 3104 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3105 processors. TURBOchannel programming specifications are available 3106 at: 3107 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3108 and: 3109 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3110 Linux driver support status is documented at: 3111 <http://www.linux-mips.org/wiki/DECstation> 3112 3113config MMU 3114 bool 3115 default y 3116 3117config ARCH_MMAP_RND_BITS_MIN 3118 default 12 if 64BIT 3119 default 8 3120 3121config ARCH_MMAP_RND_BITS_MAX 3122 default 18 if 64BIT 3123 default 15 3124 3125config ARCH_MMAP_RND_COMPAT_BITS_MIN 3126 default 8 3127 3128config ARCH_MMAP_RND_COMPAT_BITS_MAX 3129 default 15 3130 3131config I8253 3132 bool 3133 select CLKSRC_I8253 3134 select CLKEVT_I8253 3135 select MIPS_EXTERNAL_TIMER 3136 3137config ZONE_DMA 3138 bool 3139 3140config ZONE_DMA32 3141 bool 3142 3143source "drivers/pcmcia/Kconfig" 3144 3145config HAS_RAPIDIO 3146 bool 3147 default n 3148 3149config RAPIDIO 3150 tristate "RapidIO support" 3151 depends on HAS_RAPIDIO || PCI 3152 help 3153 If you say Y here, the kernel will include drivers and 3154 infrastructure code to support RapidIO interconnect devices. 3155 3156source "drivers/rapidio/Kconfig" 3157 3158endmenu 3159 3160config TRAD_SIGNALS 3161 bool 3162 3163config MIPS32_COMPAT 3164 bool 3165 3166config COMPAT 3167 bool 3168 3169config SYSVIPC_COMPAT 3170 bool 3171 3172config MIPS32_O32 3173 bool "Kernel support for o32 binaries" 3174 depends on 64BIT 3175 select ARCH_WANT_OLD_COMPAT_IPC 3176 select COMPAT 3177 select MIPS32_COMPAT 3178 select SYSVIPC_COMPAT if SYSVIPC 3179 help 3180 Select this option if you want to run o32 binaries. These are pure 3181 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3182 existing binaries are in this format. 3183 3184 If unsure, say Y. 3185 3186config MIPS32_N32 3187 bool "Kernel support for n32 binaries" 3188 depends on 64BIT 3189 select COMPAT 3190 select MIPS32_COMPAT 3191 select SYSVIPC_COMPAT if SYSVIPC 3192 help 3193 Select this option if you want to run n32 binaries. These are 3194 64-bit binaries using 32-bit quantities for addressing and certain 3195 data that would normally be 64-bit. They are used in special 3196 cases. 3197 3198 If unsure, say N. 3199 3200config BINFMT_ELF32 3201 bool 3202 default y if MIPS32_O32 || MIPS32_N32 3203 select ELFCORE 3204 3205menu "Power management options" 3206 3207config ARCH_HIBERNATION_POSSIBLE 3208 def_bool y 3209 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3210 3211config ARCH_SUSPEND_POSSIBLE 3212 def_bool y 3213 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3214 3215source "kernel/power/Kconfig" 3216 3217endmenu 3218 3219config MIPS_EXTERNAL_TIMER 3220 bool 3221 3222menu "CPU Power Management" 3223 3224if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3225source "drivers/cpufreq/Kconfig" 3226endif 3227 3228source "drivers/cpuidle/Kconfig" 3229 3230endmenu 3231 3232source "drivers/firmware/Kconfig" 3233 3234source "arch/mips/kvm/Kconfig" 3235