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 GENERIC_ATOMIC64 if !64BIT 20 select GENERIC_CLOCKEVENTS 21 select GENERIC_CMOS_UPDATE 22 select GENERIC_CPU_AUTOPROBE 23 select GENERIC_IRQ_PROBE 24 select GENERIC_IRQ_SHOW 25 select GENERIC_LIB_ASHLDI3 26 select GENERIC_LIB_ASHRDI3 27 select GENERIC_LIB_CMPDI2 28 select GENERIC_LIB_LSHRDI3 29 select GENERIC_LIB_UCMPDI2 30 select GENERIC_PCI_IOMAP 31 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 32 select GENERIC_SMP_IDLE_THREAD 33 select GENERIC_TIME_VSYSCALL 34 select HANDLE_DOMAIN_IRQ 35 select HAVE_ARCH_JUMP_LABEL 36 select HAVE_ARCH_KGDB 37 select HAVE_ARCH_MMAP_RND_BITS if MMU 38 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 39 select HAVE_ARCH_SECCOMP_FILTER 40 select HAVE_ARCH_TRACEHOOK 41 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 42 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 43 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 44 select HAVE_CONTEXT_TRACKING 45 select HAVE_COPY_THREAD_TLS 46 select HAVE_C_RECORDMCOUNT 47 select HAVE_DEBUG_KMEMLEAK 48 select HAVE_DEBUG_STACKOVERFLOW 49 select HAVE_DMA_CONTIGUOUS 50 select HAVE_DYNAMIC_FTRACE 51 select HAVE_EXIT_THREAD 52 select HAVE_FTRACE_MCOUNT_RECORD 53 select HAVE_FUNCTION_GRAPH_TRACER 54 select HAVE_FUNCTION_TRACER 55 select HAVE_GENERIC_DMA_COHERENT 56 select HAVE_IDE 57 select HAVE_IRQ_EXIT_ON_IRQ_STACK 58 select HAVE_IRQ_TIME_ACCOUNTING 59 select HAVE_KPROBES 60 select HAVE_KRETPROBES 61 select HAVE_MEMBLOCK 62 select HAVE_MEMBLOCK_NODE_MAP 63 select HAVE_MOD_ARCH_SPECIFIC 64 select HAVE_NMI 65 select HAVE_OPROFILE 66 select HAVE_PERF_EVENTS 67 select HAVE_REGS_AND_STACK_ACCESS_API 68 select HAVE_RSEQ 69 select HAVE_STACKPROTECTOR 70 select HAVE_SYSCALL_TRACEPOINTS 71 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 72 select IRQ_FORCED_THREADING 73 select MODULES_USE_ELF_RELA if MODULES && 64BIT 74 select MODULES_USE_ELF_REL if MODULES 75 select PERF_USE_VMALLOC 76 select RTC_LIB if !MACH_LOONGSON64 77 select SYSCTL_EXCEPTION_TRACE 78 select VIRT_TO_BUS 79 80menu "Machine selection" 81 82choice 83 prompt "System type" 84 default MIPS_GENERIC 85 86config MIPS_GENERIC 87 bool "Generic board-agnostic MIPS kernel" 88 select BOOT_RAW 89 select BUILTIN_DTB 90 select CEVT_R4K 91 select CLKSRC_MIPS_GIC 92 select COMMON_CLK 93 select CPU_MIPSR2_IRQ_VI 94 select CPU_MIPSR2_IRQ_EI 95 select CSRC_R4K 96 select DMA_PERDEV_COHERENT 97 select HW_HAS_PCI 98 select IRQ_MIPS_CPU 99 select LIBFDT 100 select MIPS_CPU_SCACHE 101 select MIPS_GIC 102 select MIPS_L1_CACHE_SHIFT_7 103 select NO_EXCEPT_FILL 104 select PCI_DRIVERS_GENERIC 105 select PINCTRL 106 select SMP_UP if SMP 107 select SWAP_IO_SPACE 108 select SYS_HAS_CPU_MIPS32_R1 109 select SYS_HAS_CPU_MIPS32_R2 110 select SYS_HAS_CPU_MIPS32_R6 111 select SYS_HAS_CPU_MIPS64_R1 112 select SYS_HAS_CPU_MIPS64_R2 113 select SYS_HAS_CPU_MIPS64_R6 114 select SYS_SUPPORTS_32BIT_KERNEL 115 select SYS_SUPPORTS_64BIT_KERNEL 116 select SYS_SUPPORTS_BIG_ENDIAN 117 select SYS_SUPPORTS_HIGHMEM 118 select SYS_SUPPORTS_LITTLE_ENDIAN 119 select SYS_SUPPORTS_MICROMIPS 120 select SYS_SUPPORTS_MIPS_CPS 121 select SYS_SUPPORTS_MIPS16 122 select SYS_SUPPORTS_MULTITHREADING 123 select SYS_SUPPORTS_RELOCATABLE 124 select SYS_SUPPORTS_SMARTMIPS 125 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 126 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 127 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 128 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 129 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 130 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 131 select USE_OF 132 help 133 Select this to build a kernel which aims to support multiple boards, 134 generally using a flattened device tree passed from the bootloader 135 using the boot protocol defined in the UHI (Unified Hosting 136 Interface) specification. 137 138config MIPS_ALCHEMY 139 bool "Alchemy processor based machines" 140 select PHYS_ADDR_T_64BIT 141 select CEVT_R4K 142 select CSRC_R4K 143 select IRQ_MIPS_CPU 144 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 145 select SYS_HAS_CPU_MIPS32_R1 146 select SYS_SUPPORTS_32BIT_KERNEL 147 select SYS_SUPPORTS_APM_EMULATION 148 select GPIOLIB 149 select SYS_SUPPORTS_ZBOOT 150 select COMMON_CLK 151 152config AR7 153 bool "Texas Instruments AR7" 154 select BOOT_ELF32 155 select DMA_NONCOHERENT 156 select CEVT_R4K 157 select CSRC_R4K 158 select IRQ_MIPS_CPU 159 select NO_EXCEPT_FILL 160 select SWAP_IO_SPACE 161 select SYS_HAS_CPU_MIPS32_R1 162 select SYS_HAS_EARLY_PRINTK 163 select SYS_SUPPORTS_32BIT_KERNEL 164 select SYS_SUPPORTS_LITTLE_ENDIAN 165 select SYS_SUPPORTS_MIPS16 166 select SYS_SUPPORTS_ZBOOT_UART16550 167 select GPIOLIB 168 select VLYNQ 169 select HAVE_CLK 170 help 171 Support for the Texas Instruments AR7 System-on-a-Chip 172 family: TNETD7100, 7200 and 7300. 173 174config ATH25 175 bool "Atheros AR231x/AR531x SoC support" 176 select CEVT_R4K 177 select CSRC_R4K 178 select DMA_NONCOHERENT 179 select IRQ_MIPS_CPU 180 select IRQ_DOMAIN 181 select SYS_HAS_CPU_MIPS32_R1 182 select SYS_SUPPORTS_BIG_ENDIAN 183 select SYS_SUPPORTS_32BIT_KERNEL 184 select SYS_HAS_EARLY_PRINTK 185 help 186 Support for Atheros AR231x and Atheros AR531x based boards 187 188config ATH79 189 bool "Atheros AR71XX/AR724X/AR913X based boards" 190 select ARCH_HAS_RESET_CONTROLLER 191 select BOOT_RAW 192 select CEVT_R4K 193 select CSRC_R4K 194 select DMA_NONCOHERENT 195 select GPIOLIB 196 select HAVE_CLK 197 select COMMON_CLK 198 select CLKDEV_LOOKUP 199 select IRQ_MIPS_CPU 200 select MIPS_MACHINE 201 select SYS_HAS_CPU_MIPS32_R2 202 select SYS_HAS_EARLY_PRINTK 203 select SYS_SUPPORTS_32BIT_KERNEL 204 select SYS_SUPPORTS_BIG_ENDIAN 205 select SYS_SUPPORTS_MIPS16 206 select SYS_SUPPORTS_ZBOOT_UART_PROM 207 select USE_OF 208 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 209 help 210 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 211 212config BMIPS_GENERIC 213 bool "Broadcom Generic BMIPS kernel" 214 select BOOT_RAW 215 select NO_EXCEPT_FILL 216 select USE_OF 217 select CEVT_R4K 218 select CSRC_R4K 219 select SYNC_R4K 220 select COMMON_CLK 221 select BCM6345_L1_IRQ 222 select BCM7038_L1_IRQ 223 select BCM7120_L2_IRQ 224 select BRCMSTB_L2_IRQ 225 select IRQ_MIPS_CPU 226 select DMA_NONCOHERENT 227 select SYS_SUPPORTS_32BIT_KERNEL 228 select SYS_SUPPORTS_LITTLE_ENDIAN 229 select SYS_SUPPORTS_BIG_ENDIAN 230 select SYS_SUPPORTS_HIGHMEM 231 select SYS_HAS_CPU_BMIPS32_3300 232 select SYS_HAS_CPU_BMIPS4350 233 select SYS_HAS_CPU_BMIPS4380 234 select SYS_HAS_CPU_BMIPS5000 235 select SWAP_IO_SPACE 236 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 237 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 238 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 239 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 240 select HARDIRQS_SW_RESEND 241 help 242 Build a generic DT-based kernel image that boots on select 243 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 244 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 245 must be set appropriately for your board. 246 247config BCM47XX 248 bool "Broadcom BCM47XX based boards" 249 select BOOT_RAW 250 select CEVT_R4K 251 select CSRC_R4K 252 select DMA_NONCOHERENT 253 select HW_HAS_PCI 254 select IRQ_MIPS_CPU 255 select SYS_HAS_CPU_MIPS32_R1 256 select NO_EXCEPT_FILL 257 select SYS_SUPPORTS_32BIT_KERNEL 258 select SYS_SUPPORTS_LITTLE_ENDIAN 259 select SYS_SUPPORTS_MIPS16 260 select SYS_SUPPORTS_ZBOOT 261 select SYS_HAS_EARLY_PRINTK 262 select USE_GENERIC_EARLY_PRINTK_8250 263 select GPIOLIB 264 select LEDS_GPIO_REGISTER 265 select BCM47XX_NVRAM 266 select BCM47XX_SPROM 267 select BCM47XX_SSB if !BCM47XX_BCMA 268 help 269 Support for BCM47XX based boards 270 271config BCM63XX 272 bool "Broadcom BCM63XX based boards" 273 select BOOT_RAW 274 select CEVT_R4K 275 select CSRC_R4K 276 select SYNC_R4K 277 select DMA_NONCOHERENT 278 select IRQ_MIPS_CPU 279 select SYS_SUPPORTS_32BIT_KERNEL 280 select SYS_SUPPORTS_BIG_ENDIAN 281 select SYS_HAS_EARLY_PRINTK 282 select SWAP_IO_SPACE 283 select GPIOLIB 284 select HAVE_CLK 285 select MIPS_L1_CACHE_SHIFT_4 286 select CLKDEV_LOOKUP 287 help 288 Support for BCM63XX based boards 289 290config MIPS_COBALT 291 bool "Cobalt Server" 292 select CEVT_R4K 293 select CSRC_R4K 294 select CEVT_GT641XX 295 select DMA_NONCOHERENT 296 select HW_HAS_PCI 297 select I8253 298 select I8259 299 select IRQ_MIPS_CPU 300 select IRQ_GT641XX 301 select PCI_GT64XXX_PCI0 302 select PCI 303 select SYS_HAS_CPU_NEVADA 304 select SYS_HAS_EARLY_PRINTK 305 select SYS_SUPPORTS_32BIT_KERNEL 306 select SYS_SUPPORTS_64BIT_KERNEL 307 select SYS_SUPPORTS_LITTLE_ENDIAN 308 select USE_GENERIC_EARLY_PRINTK_8250 309 310config MACH_DECSTATION 311 bool "DECstations" 312 select BOOT_ELF32 313 select CEVT_DS1287 314 select CEVT_R4K if CPU_R4X00 315 select CSRC_IOASIC 316 select CSRC_R4K if CPU_R4X00 317 select CPU_DADDI_WORKAROUNDS if 64BIT 318 select CPU_R4000_WORKAROUNDS if 64BIT 319 select CPU_R4400_WORKAROUNDS if 64BIT 320 select DMA_NONCOHERENT 321 select NO_IOPORT_MAP 322 select IRQ_MIPS_CPU 323 select SYS_HAS_CPU_R3000 324 select SYS_HAS_CPU_R4X00 325 select SYS_SUPPORTS_32BIT_KERNEL 326 select SYS_SUPPORTS_64BIT_KERNEL 327 select SYS_SUPPORTS_LITTLE_ENDIAN 328 select SYS_SUPPORTS_128HZ 329 select SYS_SUPPORTS_256HZ 330 select SYS_SUPPORTS_1024HZ 331 select MIPS_L1_CACHE_SHIFT_4 332 help 333 This enables support for DEC's MIPS based workstations. For details 334 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 335 DECstation porting pages on <http://decstation.unix-ag.org/>. 336 337 If you have one of the following DECstation Models you definitely 338 want to choose R4xx0 for the CPU Type: 339 340 DECstation 5000/50 341 DECstation 5000/150 342 DECstation 5000/260 343 DECsystem 5900/260 344 345 otherwise choose R3000. 346 347config MACH_JAZZ 348 bool "Jazz family of machines" 349 select ARCH_MIGHT_HAVE_PC_PARPORT 350 select ARCH_MIGHT_HAVE_PC_SERIO 351 select FW_ARC 352 select FW_ARC32 353 select ARCH_MAY_HAVE_PC_FDC 354 select CEVT_R4K 355 select CSRC_R4K 356 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 357 select GENERIC_ISA_DMA 358 select HAVE_PCSPKR_PLATFORM 359 select IRQ_MIPS_CPU 360 select I8253 361 select I8259 362 select ISA 363 select SYS_HAS_CPU_R4X00 364 select SYS_SUPPORTS_32BIT_KERNEL 365 select SYS_SUPPORTS_64BIT_KERNEL 366 select SYS_SUPPORTS_100HZ 367 help 368 This a family of machines based on the MIPS R4030 chipset which was 369 used by several vendors to build RISC/os and Windows NT workstations. 370 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 371 Olivetti M700-10 workstations. 372 373config MACH_INGENIC 374 bool "Ingenic SoC based machines" 375 select SYS_SUPPORTS_32BIT_KERNEL 376 select SYS_SUPPORTS_LITTLE_ENDIAN 377 select SYS_SUPPORTS_ZBOOT_UART16550 378 select DMA_NONCOHERENT 379 select IRQ_MIPS_CPU 380 select PINCTRL 381 select GPIOLIB 382 select COMMON_CLK 383 select GENERIC_IRQ_CHIP 384 select BUILTIN_DTB 385 select USE_OF 386 select LIBFDT 387 388config LANTIQ 389 bool "Lantiq based platforms" 390 select DMA_NONCOHERENT 391 select IRQ_MIPS_CPU 392 select CEVT_R4K 393 select CSRC_R4K 394 select SYS_HAS_CPU_MIPS32_R1 395 select SYS_HAS_CPU_MIPS32_R2 396 select SYS_SUPPORTS_BIG_ENDIAN 397 select SYS_SUPPORTS_32BIT_KERNEL 398 select SYS_SUPPORTS_MIPS16 399 select SYS_SUPPORTS_MULTITHREADING 400 select SYS_SUPPORTS_VPE_LOADER 401 select SYS_HAS_EARLY_PRINTK 402 select GPIOLIB 403 select SWAP_IO_SPACE 404 select BOOT_RAW 405 select CLKDEV_LOOKUP 406 select USE_OF 407 select PINCTRL 408 select PINCTRL_LANTIQ 409 select ARCH_HAS_RESET_CONTROLLER 410 select RESET_CONTROLLER 411 412config LASAT 413 bool "LASAT Networks platforms" 414 select CEVT_R4K 415 select CRC32 416 select CSRC_R4K 417 select DMA_NONCOHERENT 418 select SYS_HAS_EARLY_PRINTK 419 select HW_HAS_PCI 420 select IRQ_MIPS_CPU 421 select PCI_GT64XXX_PCI0 422 select MIPS_NILE4 423 select R5000_CPU_SCACHE 424 select SYS_HAS_CPU_R5000 425 select SYS_SUPPORTS_32BIT_KERNEL 426 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 427 select SYS_SUPPORTS_LITTLE_ENDIAN 428 429config MACH_LOONGSON32 430 bool "Loongson-1 family of machines" 431 select SYS_SUPPORTS_ZBOOT 432 help 433 This enables support for the Loongson-1 family of machines. 434 435 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 436 the Institute of Computing Technology (ICT), Chinese Academy of 437 Sciences (CAS). 438 439config MACH_LOONGSON64 440 bool "Loongson-2/3 family of machines" 441 select ARCH_HAS_PHYS_TO_DMA 442 select SYS_SUPPORTS_ZBOOT 443 help 444 This enables the support of Loongson-2/3 family of machines. 445 446 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 447 family of multi-core CPUs. They are both 64-bit general-purpose 448 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 449 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 450 in the People's Republic of China. The chief architect is Professor 451 Weiwu Hu. 452 453config MACH_PISTACHIO 454 bool "IMG Pistachio SoC based boards" 455 select BOOT_ELF32 456 select BOOT_RAW 457 select CEVT_R4K 458 select CLKSRC_MIPS_GIC 459 select COMMON_CLK 460 select CSRC_R4K 461 select DMA_NONCOHERENT 462 select GPIOLIB 463 select IRQ_MIPS_CPU 464 select LIBFDT 465 select MFD_SYSCON 466 select MIPS_CPU_SCACHE 467 select MIPS_GIC 468 select PINCTRL 469 select REGULATOR 470 select SYS_HAS_CPU_MIPS32_R2 471 select SYS_SUPPORTS_32BIT_KERNEL 472 select SYS_SUPPORTS_LITTLE_ENDIAN 473 select SYS_SUPPORTS_MIPS_CPS 474 select SYS_SUPPORTS_MULTITHREADING 475 select SYS_SUPPORTS_RELOCATABLE 476 select SYS_SUPPORTS_ZBOOT 477 select SYS_HAS_EARLY_PRINTK 478 select USE_GENERIC_EARLY_PRINTK_8250 479 select USE_OF 480 help 481 This enables support for the IMG Pistachio SoC platform. 482 483config MIPS_MALTA 484 bool "MIPS Malta board" 485 select ARCH_MAY_HAVE_PC_FDC 486 select ARCH_MIGHT_HAVE_PC_PARPORT 487 select ARCH_MIGHT_HAVE_PC_SERIO 488 select BOOT_ELF32 489 select BOOT_RAW 490 select BUILTIN_DTB 491 select CEVT_R4K 492 select CSRC_R4K 493 select CLKSRC_MIPS_GIC 494 select COMMON_CLK 495 select DMA_MAYBE_COHERENT 496 select GENERIC_ISA_DMA 497 select HAVE_PCSPKR_PLATFORM 498 select IRQ_MIPS_CPU 499 select MIPS_GIC 500 select HW_HAS_PCI 501 select I8253 502 select I8259 503 select MIPS_BONITO64 504 select MIPS_CPU_SCACHE 505 select MIPS_L1_CACHE_SHIFT_6 506 select PCI_GT64XXX_PCI0 507 select MIPS_MSC 508 select SMP_UP if SMP 509 select SWAP_IO_SPACE 510 select SYS_HAS_CPU_MIPS32_R1 511 select SYS_HAS_CPU_MIPS32_R2 512 select SYS_HAS_CPU_MIPS32_R3_5 513 select SYS_HAS_CPU_MIPS32_R5 514 select SYS_HAS_CPU_MIPS32_R6 515 select SYS_HAS_CPU_MIPS64_R1 516 select SYS_HAS_CPU_MIPS64_R2 517 select SYS_HAS_CPU_MIPS64_R6 518 select SYS_HAS_CPU_NEVADA 519 select SYS_HAS_CPU_RM7000 520 select SYS_SUPPORTS_32BIT_KERNEL 521 select SYS_SUPPORTS_64BIT_KERNEL 522 select SYS_SUPPORTS_BIG_ENDIAN 523 select SYS_SUPPORTS_HIGHMEM 524 select SYS_SUPPORTS_LITTLE_ENDIAN 525 select SYS_SUPPORTS_MICROMIPS 526 select SYS_SUPPORTS_MIPS_CMP 527 select SYS_SUPPORTS_MIPS_CPS 528 select SYS_SUPPORTS_MIPS16 529 select SYS_SUPPORTS_MULTITHREADING 530 select SYS_SUPPORTS_SMARTMIPS 531 select SYS_SUPPORTS_VPE_LOADER 532 select SYS_SUPPORTS_ZBOOT 533 select SYS_SUPPORTS_RELOCATABLE 534 select USE_OF 535 select LIBFDT 536 select ZONE_DMA32 if 64BIT 537 select BUILTIN_DTB 538 select LIBFDT 539 help 540 This enables support for the MIPS Technologies Malta evaluation 541 board. 542 543config MACH_PIC32 544 bool "Microchip PIC32 Family" 545 help 546 This enables support for the Microchip PIC32 family of platforms. 547 548 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 549 microcontrollers. 550 551config NEC_MARKEINS 552 bool "NEC EMMA2RH Mark-eins board" 553 select SOC_EMMA2RH 554 select HW_HAS_PCI 555 help 556 This enables support for the NEC Electronics Mark-eins boards. 557 558config MACH_VR41XX 559 bool "NEC VR4100 series based machines" 560 select CEVT_R4K 561 select CSRC_R4K 562 select SYS_HAS_CPU_VR41XX 563 select SYS_SUPPORTS_MIPS16 564 select GPIOLIB 565 566config NXP_STB220 567 bool "NXP STB220 board" 568 select SOC_PNX833X 569 help 570 Support for NXP Semiconductors STB220 Development Board. 571 572config NXP_STB225 573 bool "NXP 225 board" 574 select SOC_PNX833X 575 select SOC_PNX8335 576 help 577 Support for NXP Semiconductors STB225 Development Board. 578 579config PMC_MSP 580 bool "PMC-Sierra MSP chipsets" 581 select CEVT_R4K 582 select CSRC_R4K 583 select DMA_NONCOHERENT 584 select SWAP_IO_SPACE 585 select NO_EXCEPT_FILL 586 select BOOT_RAW 587 select SYS_HAS_CPU_MIPS32_R1 588 select SYS_HAS_CPU_MIPS32_R2 589 select SYS_SUPPORTS_32BIT_KERNEL 590 select SYS_SUPPORTS_BIG_ENDIAN 591 select SYS_SUPPORTS_MIPS16 592 select IRQ_MIPS_CPU 593 select SERIAL_8250 594 select SERIAL_8250_CONSOLE 595 select USB_EHCI_BIG_ENDIAN_MMIO 596 select USB_EHCI_BIG_ENDIAN_DESC 597 help 598 This adds support for the PMC-Sierra family of Multi-Service 599 Processor System-On-A-Chips. These parts include a number 600 of integrated peripherals, interfaces and DSPs in addition to 601 a variety of MIPS cores. 602 603config RALINK 604 bool "Ralink based machines" 605 select CEVT_R4K 606 select CSRC_R4K 607 select BOOT_RAW 608 select DMA_NONCOHERENT 609 select IRQ_MIPS_CPU 610 select USE_OF 611 select SYS_HAS_CPU_MIPS32_R1 612 select SYS_HAS_CPU_MIPS32_R2 613 select SYS_SUPPORTS_32BIT_KERNEL 614 select SYS_SUPPORTS_LITTLE_ENDIAN 615 select SYS_SUPPORTS_MIPS16 616 select SYS_HAS_EARLY_PRINTK 617 select CLKDEV_LOOKUP 618 select ARCH_HAS_RESET_CONTROLLER 619 select RESET_CONTROLLER 620 621config SGI_IP22 622 bool "SGI IP22 (Indy/Indigo2)" 623 select FW_ARC 624 select FW_ARC32 625 select ARCH_MIGHT_HAVE_PC_SERIO 626 select BOOT_ELF32 627 select CEVT_R4K 628 select CSRC_R4K 629 select DEFAULT_SGI_PARTITION 630 select DMA_NONCOHERENT 631 select HW_HAS_EISA 632 select I8253 633 select I8259 634 select IP22_CPU_SCACHE 635 select IRQ_MIPS_CPU 636 select GENERIC_ISA_DMA_SUPPORT_BROKEN 637 select SGI_HAS_I8042 638 select SGI_HAS_INDYDOG 639 select SGI_HAS_HAL2 640 select SGI_HAS_SEEQ 641 select SGI_HAS_WD93 642 select SGI_HAS_ZILOG 643 select SWAP_IO_SPACE 644 select SYS_HAS_CPU_R4X00 645 select SYS_HAS_CPU_R5000 646 # 647 # Disable EARLY_PRINTK for now since it leads to overwritten prom 648 # memory during early boot on some machines. 649 # 650 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 651 # for a more details discussion 652 # 653 # select SYS_HAS_EARLY_PRINTK 654 select SYS_SUPPORTS_32BIT_KERNEL 655 select SYS_SUPPORTS_64BIT_KERNEL 656 select SYS_SUPPORTS_BIG_ENDIAN 657 select MIPS_L1_CACHE_SHIFT_7 658 help 659 This are the SGI Indy, Challenge S and Indigo2, as well as certain 660 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 661 that runs on these, say Y here. 662 663config SGI_IP27 664 bool "SGI IP27 (Origin200/2000)" 665 select FW_ARC 666 select FW_ARC64 667 select BOOT_ELF64 668 select DEFAULT_SGI_PARTITION 669 select DMA_COHERENT 670 select SYS_HAS_EARLY_PRINTK 671 select HW_HAS_PCI 672 select NR_CPUS_DEFAULT_64 673 select SYS_HAS_CPU_R10000 674 select SYS_SUPPORTS_64BIT_KERNEL 675 select SYS_SUPPORTS_BIG_ENDIAN 676 select SYS_SUPPORTS_NUMA 677 select SYS_SUPPORTS_SMP 678 select MIPS_L1_CACHE_SHIFT_7 679 help 680 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 681 workstations. To compile a Linux kernel that runs on these, say Y 682 here. 683 684config SGI_IP28 685 bool "SGI IP28 (Indigo2 R10k)" 686 select FW_ARC 687 select FW_ARC64 688 select ARCH_MIGHT_HAVE_PC_SERIO 689 select BOOT_ELF64 690 select CEVT_R4K 691 select CSRC_R4K 692 select DEFAULT_SGI_PARTITION 693 select DMA_NONCOHERENT 694 select GENERIC_ISA_DMA_SUPPORT_BROKEN 695 select IRQ_MIPS_CPU 696 select HW_HAS_EISA 697 select I8253 698 select I8259 699 select SGI_HAS_I8042 700 select SGI_HAS_INDYDOG 701 select SGI_HAS_HAL2 702 select SGI_HAS_SEEQ 703 select SGI_HAS_WD93 704 select SGI_HAS_ZILOG 705 select SWAP_IO_SPACE 706 select SYS_HAS_CPU_R10000 707 # 708 # Disable EARLY_PRINTK for now since it leads to overwritten prom 709 # memory during early boot on some machines. 710 # 711 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 712 # for a more details discussion 713 # 714 # select SYS_HAS_EARLY_PRINTK 715 select SYS_SUPPORTS_64BIT_KERNEL 716 select SYS_SUPPORTS_BIG_ENDIAN 717 select MIPS_L1_CACHE_SHIFT_7 718 help 719 This is the SGI Indigo2 with R10000 processor. To compile a Linux 720 kernel that runs on these, say Y here. 721 722config SGI_IP32 723 bool "SGI IP32 (O2)" 724 select FW_ARC 725 select FW_ARC32 726 select BOOT_ELF32 727 select CEVT_R4K 728 select CSRC_R4K 729 select DMA_NONCOHERENT 730 select HW_HAS_PCI 731 select IRQ_MIPS_CPU 732 select R5000_CPU_SCACHE 733 select RM7000_CPU_SCACHE 734 select SYS_HAS_CPU_R5000 735 select SYS_HAS_CPU_R10000 if BROKEN 736 select SYS_HAS_CPU_RM7000 737 select SYS_HAS_CPU_NEVADA 738 select SYS_SUPPORTS_64BIT_KERNEL 739 select SYS_SUPPORTS_BIG_ENDIAN 740 help 741 If you want this kernel to run on SGI O2 workstation, say Y here. 742 743config SIBYTE_CRHINE 744 bool "Sibyte BCM91120C-CRhine" 745 select BOOT_ELF32 746 select DMA_COHERENT 747 select SIBYTE_BCM1120 748 select SWAP_IO_SPACE 749 select SYS_HAS_CPU_SB1 750 select SYS_SUPPORTS_BIG_ENDIAN 751 select SYS_SUPPORTS_LITTLE_ENDIAN 752 753config SIBYTE_CARMEL 754 bool "Sibyte BCM91120x-Carmel" 755 select BOOT_ELF32 756 select DMA_COHERENT 757 select SIBYTE_BCM1120 758 select SWAP_IO_SPACE 759 select SYS_HAS_CPU_SB1 760 select SYS_SUPPORTS_BIG_ENDIAN 761 select SYS_SUPPORTS_LITTLE_ENDIAN 762 763config SIBYTE_CRHONE 764 bool "Sibyte BCM91125C-CRhone" 765 select BOOT_ELF32 766 select DMA_COHERENT 767 select SIBYTE_BCM1125 768 select SWAP_IO_SPACE 769 select SYS_HAS_CPU_SB1 770 select SYS_SUPPORTS_BIG_ENDIAN 771 select SYS_SUPPORTS_HIGHMEM 772 select SYS_SUPPORTS_LITTLE_ENDIAN 773 774config SIBYTE_RHONE 775 bool "Sibyte BCM91125E-Rhone" 776 select BOOT_ELF32 777 select DMA_COHERENT 778 select SIBYTE_BCM1125H 779 select SWAP_IO_SPACE 780 select SYS_HAS_CPU_SB1 781 select SYS_SUPPORTS_BIG_ENDIAN 782 select SYS_SUPPORTS_LITTLE_ENDIAN 783 784config SIBYTE_SWARM 785 bool "Sibyte BCM91250A-SWARM" 786 select BOOT_ELF32 787 select DMA_COHERENT 788 select HAVE_PATA_PLATFORM 789 select SIBYTE_SB1250 790 select SWAP_IO_SPACE 791 select SYS_HAS_CPU_SB1 792 select SYS_SUPPORTS_BIG_ENDIAN 793 select SYS_SUPPORTS_HIGHMEM 794 select SYS_SUPPORTS_LITTLE_ENDIAN 795 select ZONE_DMA32 if 64BIT 796 797config SIBYTE_LITTLESUR 798 bool "Sibyte BCM91250C2-LittleSur" 799 select BOOT_ELF32 800 select DMA_COHERENT 801 select HAVE_PATA_PLATFORM 802 select SIBYTE_SB1250 803 select SWAP_IO_SPACE 804 select SYS_HAS_CPU_SB1 805 select SYS_SUPPORTS_BIG_ENDIAN 806 select SYS_SUPPORTS_HIGHMEM 807 select SYS_SUPPORTS_LITTLE_ENDIAN 808 809config SIBYTE_SENTOSA 810 bool "Sibyte BCM91250E-Sentosa" 811 select BOOT_ELF32 812 select DMA_COHERENT 813 select SIBYTE_SB1250 814 select SWAP_IO_SPACE 815 select SYS_HAS_CPU_SB1 816 select SYS_SUPPORTS_BIG_ENDIAN 817 select SYS_SUPPORTS_LITTLE_ENDIAN 818 819config SIBYTE_BIGSUR 820 bool "Sibyte BCM91480B-BigSur" 821 select BOOT_ELF32 822 select DMA_COHERENT 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 PHYS_ADDR_T_64BIT 899 select DMA_COHERENT 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 DMA_COHERENT 949 select NR_CPUS_DEFAULT_32 950 select CEVT_R4K 951 select CSRC_R4K 952 select IRQ_MIPS_CPU 953 select ZONE_DMA32 if 64BIT 954 select SYNC_R4K 955 select SYS_HAS_EARLY_PRINTK 956 select SYS_SUPPORTS_ZBOOT 957 select SYS_SUPPORTS_ZBOOT_UART16550 958 help 959 Support for systems based on Netlogic XLR and XLS processors. 960 Say Y here if you have a XLR or XLS based board. 961 962config NLM_XLP_BOARD 963 bool "Netlogic XLP based systems" 964 select BOOT_ELF32 965 select NLM_COMMON 966 select SYS_HAS_CPU_XLP 967 select SYS_SUPPORTS_SMP 968 select HW_HAS_PCI 969 select SYS_SUPPORTS_32BIT_KERNEL 970 select SYS_SUPPORTS_64BIT_KERNEL 971 select PHYS_ADDR_T_64BIT 972 select GPIOLIB 973 select SYS_SUPPORTS_BIG_ENDIAN 974 select SYS_SUPPORTS_LITTLE_ENDIAN 975 select SYS_SUPPORTS_HIGHMEM 976 select DMA_COHERENT 977 select NR_CPUS_DEFAULT_32 978 select CEVT_R4K 979 select CSRC_R4K 980 select IRQ_MIPS_CPU 981 select ZONE_DMA32 if 64BIT 982 select SYNC_R4K 983 select SYS_HAS_EARLY_PRINTK 984 select USE_OF 985 select SYS_SUPPORTS_ZBOOT 986 select SYS_SUPPORTS_ZBOOT_UART16550 987 help 988 This board is based on Netlogic XLP Processor. 989 Say Y here if you have a XLP based board. 990 991config MIPS_PARAVIRT 992 bool "Para-Virtualized guest system" 993 select CEVT_R4K 994 select CSRC_R4K 995 select DMA_COHERENT 996 select SYS_SUPPORTS_64BIT_KERNEL 997 select SYS_SUPPORTS_32BIT_KERNEL 998 select SYS_SUPPORTS_BIG_ENDIAN 999 select SYS_SUPPORTS_SMP 1000 select NR_CPUS_DEFAULT_4 1001 select SYS_HAS_EARLY_PRINTK 1002 select SYS_HAS_CPU_MIPS32_R2 1003 select SYS_HAS_CPU_MIPS64_R2 1004 select SYS_HAS_CPU_CAVIUM_OCTEON 1005 select HW_HAS_PCI 1006 select SWAP_IO_SPACE 1007 help 1008 This option supports guest running under ???? 1009 1010endchoice 1011 1012source "arch/mips/alchemy/Kconfig" 1013source "arch/mips/ath25/Kconfig" 1014source "arch/mips/ath79/Kconfig" 1015source "arch/mips/bcm47xx/Kconfig" 1016source "arch/mips/bcm63xx/Kconfig" 1017source "arch/mips/bmips/Kconfig" 1018source "arch/mips/generic/Kconfig" 1019source "arch/mips/jazz/Kconfig" 1020source "arch/mips/jz4740/Kconfig" 1021source "arch/mips/lantiq/Kconfig" 1022source "arch/mips/lasat/Kconfig" 1023source "arch/mips/pic32/Kconfig" 1024source "arch/mips/pistachio/Kconfig" 1025source "arch/mips/pmcs-msp71xx/Kconfig" 1026source "arch/mips/ralink/Kconfig" 1027source "arch/mips/sgi-ip27/Kconfig" 1028source "arch/mips/sibyte/Kconfig" 1029source "arch/mips/txx9/Kconfig" 1030source "arch/mips/vr41xx/Kconfig" 1031source "arch/mips/cavium-octeon/Kconfig" 1032source "arch/mips/loongson32/Kconfig" 1033source "arch/mips/loongson64/Kconfig" 1034source "arch/mips/netlogic/Kconfig" 1035source "arch/mips/paravirt/Kconfig" 1036 1037endmenu 1038 1039config RWSEM_GENERIC_SPINLOCK 1040 bool 1041 default y 1042 1043config RWSEM_XCHGADD_ALGORITHM 1044 bool 1045 1046config GENERIC_HWEIGHT 1047 bool 1048 default y 1049 1050config GENERIC_CALIBRATE_DELAY 1051 bool 1052 default y 1053 1054config SCHED_OMIT_FRAME_POINTER 1055 bool 1056 default y 1057 1058# 1059# Select some configuration options automatically based on user selections. 1060# 1061config FW_ARC 1062 bool 1063 1064config ARCH_MAY_HAVE_PC_FDC 1065 bool 1066 1067config BOOT_RAW 1068 bool 1069 1070config CEVT_BCM1480 1071 bool 1072 1073config CEVT_DS1287 1074 bool 1075 1076config CEVT_GT641XX 1077 bool 1078 1079config CEVT_R4K 1080 bool 1081 1082config CEVT_SB1250 1083 bool 1084 1085config CEVT_TXX9 1086 bool 1087 1088config CSRC_BCM1480 1089 bool 1090 1091config CSRC_IOASIC 1092 bool 1093 1094config CSRC_R4K 1095 bool 1096 1097config CSRC_SB1250 1098 bool 1099 1100config MIPS_CLOCK_VSYSCALL 1101 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1102 1103config GPIO_TXX9 1104 select GPIOLIB 1105 bool 1106 1107config FW_CFE 1108 bool 1109 1110config ARCH_SUPPORTS_UPROBES 1111 bool 1112 1113config DMA_MAYBE_COHERENT 1114 select DMA_NONCOHERENT 1115 bool 1116 1117config DMA_PERDEV_COHERENT 1118 bool 1119 select DMA_MAYBE_COHERENT 1120 1121config DMA_COHERENT 1122 bool 1123 1124config DMA_NONCOHERENT 1125 bool 1126 select NEED_DMA_MAP_STATE 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 1155config GENERIC_ISA_DMA 1156 bool 1157 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1158 select ISA_DMA_API 1159 1160config GENERIC_ISA_DMA_SUPPORT_BROKEN 1161 bool 1162 select GENERIC_ISA_DMA 1163 1164config ISA_DMA_API 1165 bool 1166 1167config HOLES_IN_ZONE 1168 bool 1169 1170config SYS_SUPPORTS_RELOCATABLE 1171 bool 1172 help 1173 Selected if the platform supports relocating the kernel. 1174 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1175 to allow access to command line and entropy sources. 1176 1177config MIPS_CBPF_JIT 1178 def_bool y 1179 depends on BPF_JIT && HAVE_CBPF_JIT 1180 1181config MIPS_EBPF_JIT 1182 def_bool y 1183 depends on BPF_JIT && HAVE_EBPF_JIT 1184 1185 1186# 1187# Endianness selection. Sufficiently obscure so many users don't know what to 1188# answer,so we try hard to limit the available choices. Also the use of a 1189# choice statement should be more obvious to the user. 1190# 1191choice 1192 prompt "Endianness selection" 1193 help 1194 Some MIPS machines can be configured for either little or big endian 1195 byte order. These modes require different kernels and a different 1196 Linux distribution. In general there is one preferred byteorder for a 1197 particular system but some systems are just as commonly used in the 1198 one or the other endianness. 1199 1200config CPU_BIG_ENDIAN 1201 bool "Big endian" 1202 depends on SYS_SUPPORTS_BIG_ENDIAN 1203 1204config CPU_LITTLE_ENDIAN 1205 bool "Little endian" 1206 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1207 1208endchoice 1209 1210config EXPORT_UASM 1211 bool 1212 1213config SYS_SUPPORTS_APM_EMULATION 1214 bool 1215 1216config SYS_SUPPORTS_BIG_ENDIAN 1217 bool 1218 1219config SYS_SUPPORTS_LITTLE_ENDIAN 1220 bool 1221 1222config SYS_SUPPORTS_HUGETLBFS 1223 bool 1224 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1225 default y 1226 1227config MIPS_HUGE_TLB_SUPPORT 1228 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1229 1230config IRQ_CPU_RM7K 1231 bool 1232 1233config IRQ_MSP_SLP 1234 bool 1235 1236config IRQ_MSP_CIC 1237 bool 1238 1239config IRQ_TXX9 1240 bool 1241 1242config IRQ_GT641XX 1243 bool 1244 1245config PCI_GT64XXX_PCI0 1246 bool 1247 1248config NO_EXCEPT_FILL 1249 bool 1250 1251config SOC_EMMA2RH 1252 bool 1253 select CEVT_R4K 1254 select CSRC_R4K 1255 select DMA_NONCOHERENT 1256 select IRQ_MIPS_CPU 1257 select SWAP_IO_SPACE 1258 select SYS_HAS_CPU_R5500 1259 select SYS_SUPPORTS_32BIT_KERNEL 1260 select SYS_SUPPORTS_64BIT_KERNEL 1261 select SYS_SUPPORTS_BIG_ENDIAN 1262 1263config SOC_PNX833X 1264 bool 1265 select CEVT_R4K 1266 select CSRC_R4K 1267 select IRQ_MIPS_CPU 1268 select DMA_NONCOHERENT 1269 select SYS_HAS_CPU_MIPS32_R2 1270 select SYS_SUPPORTS_32BIT_KERNEL 1271 select SYS_SUPPORTS_LITTLE_ENDIAN 1272 select SYS_SUPPORTS_BIG_ENDIAN 1273 select SYS_SUPPORTS_MIPS16 1274 select CPU_MIPSR2_IRQ_VI 1275 1276config SOC_PNX8335 1277 bool 1278 select SOC_PNX833X 1279 1280config MIPS_SPRAM 1281 bool 1282 1283config SWAP_IO_SPACE 1284 bool 1285 1286config SGI_HAS_INDYDOG 1287 bool 1288 1289config SGI_HAS_HAL2 1290 bool 1291 1292config SGI_HAS_SEEQ 1293 bool 1294 1295config SGI_HAS_WD93 1296 bool 1297 1298config SGI_HAS_ZILOG 1299 bool 1300 1301config SGI_HAS_I8042 1302 bool 1303 1304config DEFAULT_SGI_PARTITION 1305 bool 1306 1307config FW_ARC32 1308 bool 1309 1310config FW_SNIPROM 1311 bool 1312 1313config BOOT_ELF32 1314 bool 1315 1316config MIPS_L1_CACHE_SHIFT_4 1317 bool 1318 1319config MIPS_L1_CACHE_SHIFT_5 1320 bool 1321 1322config MIPS_L1_CACHE_SHIFT_6 1323 bool 1324 1325config MIPS_L1_CACHE_SHIFT_7 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT 1329 int 1330 default "7" if MIPS_L1_CACHE_SHIFT_7 1331 default "6" if MIPS_L1_CACHE_SHIFT_6 1332 default "5" if MIPS_L1_CACHE_SHIFT_5 1333 default "4" if MIPS_L1_CACHE_SHIFT_4 1334 default "5" 1335 1336config HAVE_STD_PC_SERIAL_PORT 1337 bool 1338 1339config ARC_CONSOLE 1340 bool "ARC console support" 1341 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1342 1343config ARC_MEMORY 1344 bool 1345 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1346 default y 1347 1348config ARC_PROMLIB 1349 bool 1350 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1351 default y 1352 1353config FW_ARC64 1354 bool 1355 1356config BOOT_ELF64 1357 bool 1358 1359menu "CPU selection" 1360 1361choice 1362 prompt "CPU type" 1363 default CPU_R4X00 1364 1365config CPU_LOONGSON3 1366 bool "Loongson 3 CPU" 1367 depends on SYS_HAS_CPU_LOONGSON3 1368 select CPU_SUPPORTS_64BIT_KERNEL 1369 select CPU_SUPPORTS_HIGHMEM 1370 select CPU_SUPPORTS_HUGEPAGES 1371 select WEAK_ORDERING 1372 select WEAK_REORDERING_BEYOND_LLSC 1373 select MIPS_PGD_C0_CONTEXT 1374 select MIPS_L1_CACHE_SHIFT_6 1375 select GPIOLIB 1376 select SWIOTLB 1377 help 1378 The Loongson 3 processor implements the MIPS64R2 instruction 1379 set with many extensions. 1380 1381config LOONGSON3_ENHANCEMENT 1382 bool "New Loongson 3 CPU Enhancements" 1383 default n 1384 select CPU_MIPSR2 1385 select CPU_HAS_PREFETCH 1386 depends on CPU_LOONGSON3 1387 help 1388 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1389 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1390 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1391 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1392 Fast TLB refill support, etc. 1393 1394 This option enable those enhancements which are not probed at run 1395 time. If you want a generic kernel to run on all Loongson 3 machines, 1396 please say 'N' here. If you want a high-performance kernel to run on 1397 new Loongson 3 machines only, please say 'Y' here. 1398 1399config CPU_LOONGSON2E 1400 bool "Loongson 2E" 1401 depends on SYS_HAS_CPU_LOONGSON2E 1402 select CPU_LOONGSON2 1403 help 1404 The Loongson 2E processor implements the MIPS III instruction set 1405 with many extensions. 1406 1407 It has an internal FPGA northbridge, which is compatible to 1408 bonito64. 1409 1410config CPU_LOONGSON2F 1411 bool "Loongson 2F" 1412 depends on SYS_HAS_CPU_LOONGSON2F 1413 select CPU_LOONGSON2 1414 select GPIOLIB 1415 help 1416 The Loongson 2F processor implements the MIPS III instruction set 1417 with many extensions. 1418 1419 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1420 have a similar programming interface with FPGA northbridge used in 1421 Loongson2E. 1422 1423config CPU_LOONGSON1B 1424 bool "Loongson 1B" 1425 depends on SYS_HAS_CPU_LOONGSON1B 1426 select CPU_LOONGSON1 1427 select LEDS_GPIO_REGISTER 1428 help 1429 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1430 release 2 instruction set. 1431 1432config CPU_LOONGSON1C 1433 bool "Loongson 1C" 1434 depends on SYS_HAS_CPU_LOONGSON1C 1435 select CPU_LOONGSON1 1436 select LEDS_GPIO_REGISTER 1437 help 1438 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1439 release 2 instruction set. 1440 1441config CPU_MIPS32_R1 1442 bool "MIPS32 Release 1" 1443 depends on SYS_HAS_CPU_MIPS32_R1 1444 select CPU_HAS_PREFETCH 1445 select CPU_SUPPORTS_32BIT_KERNEL 1446 select CPU_SUPPORTS_HIGHMEM 1447 help 1448 Choose this option to build a kernel for release 1 or later of the 1449 MIPS32 architecture. Most modern embedded systems with a 32-bit 1450 MIPS processor are based on a MIPS32 processor. If you know the 1451 specific type of processor in your system, choose those that one 1452 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1453 Release 2 of the MIPS32 architecture is available since several 1454 years so chances are you even have a MIPS32 Release 2 processor 1455 in which case you should choose CPU_MIPS32_R2 instead for better 1456 performance. 1457 1458config CPU_MIPS32_R2 1459 bool "MIPS32 Release 2" 1460 depends on SYS_HAS_CPU_MIPS32_R2 1461 select CPU_HAS_PREFETCH 1462 select CPU_SUPPORTS_32BIT_KERNEL 1463 select CPU_SUPPORTS_HIGHMEM 1464 select CPU_SUPPORTS_MSA 1465 select HAVE_KVM 1466 help 1467 Choose this option to build a kernel for release 2 or later of the 1468 MIPS32 architecture. Most modern embedded systems with a 32-bit 1469 MIPS processor are based on a MIPS32 processor. If you know the 1470 specific type of processor in your system, choose those that one 1471 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1472 1473config CPU_MIPS32_R6 1474 bool "MIPS32 Release 6" 1475 depends on SYS_HAS_CPU_MIPS32_R6 1476 select CPU_HAS_PREFETCH 1477 select CPU_SUPPORTS_32BIT_KERNEL 1478 select CPU_SUPPORTS_HIGHMEM 1479 select CPU_SUPPORTS_MSA 1480 select GENERIC_CSUM 1481 select HAVE_KVM 1482 select MIPS_O32_FP64_SUPPORT 1483 help 1484 Choose this option to build a kernel for release 6 or later of the 1485 MIPS32 architecture. New MIPS processors, starting with the Warrior 1486 family, are based on a MIPS32r6 processor. If you own an older 1487 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1488 1489config CPU_MIPS64_R1 1490 bool "MIPS64 Release 1" 1491 depends on SYS_HAS_CPU_MIPS64_R1 1492 select CPU_HAS_PREFETCH 1493 select CPU_SUPPORTS_32BIT_KERNEL 1494 select CPU_SUPPORTS_64BIT_KERNEL 1495 select CPU_SUPPORTS_HIGHMEM 1496 select CPU_SUPPORTS_HUGEPAGES 1497 help 1498 Choose this option to build a kernel for release 1 or later of the 1499 MIPS64 architecture. Many modern embedded systems with a 64-bit 1500 MIPS processor are based on a MIPS64 processor. If you know the 1501 specific type of processor in your system, choose those that one 1502 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1503 Release 2 of the MIPS64 architecture is available since several 1504 years so chances are you even have a MIPS64 Release 2 processor 1505 in which case you should choose CPU_MIPS64_R2 instead for better 1506 performance. 1507 1508config CPU_MIPS64_R2 1509 bool "MIPS64 Release 2" 1510 depends on SYS_HAS_CPU_MIPS64_R2 1511 select CPU_HAS_PREFETCH 1512 select CPU_SUPPORTS_32BIT_KERNEL 1513 select CPU_SUPPORTS_64BIT_KERNEL 1514 select CPU_SUPPORTS_HIGHMEM 1515 select CPU_SUPPORTS_HUGEPAGES 1516 select CPU_SUPPORTS_MSA 1517 select HAVE_KVM 1518 help 1519 Choose this option to build a kernel for release 2 or later of the 1520 MIPS64 architecture. Many modern embedded systems with a 64-bit 1521 MIPS processor are based on a MIPS64 processor. If you know the 1522 specific type of processor in your system, choose those that one 1523 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1524 1525config CPU_MIPS64_R6 1526 bool "MIPS64 Release 6" 1527 depends on SYS_HAS_CPU_MIPS64_R6 1528 select CPU_HAS_PREFETCH 1529 select CPU_SUPPORTS_32BIT_KERNEL 1530 select CPU_SUPPORTS_64BIT_KERNEL 1531 select CPU_SUPPORTS_HIGHMEM 1532 select CPU_SUPPORTS_MSA 1533 select GENERIC_CSUM 1534 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1535 select HAVE_KVM 1536 help 1537 Choose this option to build a kernel for release 6 or later of the 1538 MIPS64 architecture. New MIPS processors, starting with the Warrior 1539 family, are based on a MIPS64r6 processor. If you own an older 1540 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1541 1542config CPU_R3000 1543 bool "R3000" 1544 depends on SYS_HAS_CPU_R3000 1545 select CPU_HAS_WB 1546 select CPU_SUPPORTS_32BIT_KERNEL 1547 select CPU_SUPPORTS_HIGHMEM 1548 help 1549 Please make sure to pick the right CPU type. Linux/MIPS is not 1550 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1551 *not* work on R4000 machines and vice versa. However, since most 1552 of the supported machines have an R4000 (or similar) CPU, R4x00 1553 might be a safe bet. If the resulting kernel does not work, 1554 try to recompile with R3000. 1555 1556config CPU_TX39XX 1557 bool "R39XX" 1558 depends on SYS_HAS_CPU_TX39XX 1559 select CPU_SUPPORTS_32BIT_KERNEL 1560 1561config CPU_VR41XX 1562 bool "R41xx" 1563 depends on SYS_HAS_CPU_VR41XX 1564 select CPU_SUPPORTS_32BIT_KERNEL 1565 select CPU_SUPPORTS_64BIT_KERNEL 1566 help 1567 The options selects support for the NEC VR4100 series of processors. 1568 Only choose this option if you have one of these processors as a 1569 kernel built with this option will not run on any other type of 1570 processor or vice versa. 1571 1572config CPU_R4300 1573 bool "R4300" 1574 depends on SYS_HAS_CPU_R4300 1575 select CPU_SUPPORTS_32BIT_KERNEL 1576 select CPU_SUPPORTS_64BIT_KERNEL 1577 help 1578 MIPS Technologies R4300-series processors. 1579 1580config CPU_R4X00 1581 bool "R4x00" 1582 depends on SYS_HAS_CPU_R4X00 1583 select CPU_SUPPORTS_32BIT_KERNEL 1584 select CPU_SUPPORTS_64BIT_KERNEL 1585 select CPU_SUPPORTS_HUGEPAGES 1586 help 1587 MIPS Technologies R4000-series processors other than 4300, including 1588 the R4000, R4400, R4600, and 4700. 1589 1590config CPU_TX49XX 1591 bool "R49XX" 1592 depends on SYS_HAS_CPU_TX49XX 1593 select CPU_HAS_PREFETCH 1594 select CPU_SUPPORTS_32BIT_KERNEL 1595 select CPU_SUPPORTS_64BIT_KERNEL 1596 select CPU_SUPPORTS_HUGEPAGES 1597 1598config CPU_R5000 1599 bool "R5000" 1600 depends on SYS_HAS_CPU_R5000 1601 select CPU_SUPPORTS_32BIT_KERNEL 1602 select CPU_SUPPORTS_64BIT_KERNEL 1603 select CPU_SUPPORTS_HUGEPAGES 1604 help 1605 MIPS Technologies R5000-series processors other than the Nevada. 1606 1607config CPU_R5432 1608 bool "R5432" 1609 depends on SYS_HAS_CPU_R5432 1610 select CPU_SUPPORTS_32BIT_KERNEL 1611 select CPU_SUPPORTS_64BIT_KERNEL 1612 select CPU_SUPPORTS_HUGEPAGES 1613 1614config CPU_R5500 1615 bool "R5500" 1616 depends on SYS_HAS_CPU_R5500 1617 select CPU_SUPPORTS_32BIT_KERNEL 1618 select CPU_SUPPORTS_64BIT_KERNEL 1619 select CPU_SUPPORTS_HUGEPAGES 1620 help 1621 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1622 instruction set. 1623 1624config CPU_NEVADA 1625 bool "RM52xx" 1626 depends on SYS_HAS_CPU_NEVADA 1627 select CPU_SUPPORTS_32BIT_KERNEL 1628 select CPU_SUPPORTS_64BIT_KERNEL 1629 select CPU_SUPPORTS_HUGEPAGES 1630 help 1631 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1632 1633config CPU_R8000 1634 bool "R8000" 1635 depends on SYS_HAS_CPU_R8000 1636 select CPU_HAS_PREFETCH 1637 select CPU_SUPPORTS_64BIT_KERNEL 1638 help 1639 MIPS Technologies R8000 processors. Note these processors are 1640 uncommon and the support for them is incomplete. 1641 1642config CPU_R10000 1643 bool "R10000" 1644 depends on SYS_HAS_CPU_R10000 1645 select CPU_HAS_PREFETCH 1646 select CPU_SUPPORTS_32BIT_KERNEL 1647 select CPU_SUPPORTS_64BIT_KERNEL 1648 select CPU_SUPPORTS_HIGHMEM 1649 select CPU_SUPPORTS_HUGEPAGES 1650 help 1651 MIPS Technologies R10000-series processors. 1652 1653config CPU_RM7000 1654 bool "RM7000" 1655 depends on SYS_HAS_CPU_RM7000 1656 select CPU_HAS_PREFETCH 1657 select CPU_SUPPORTS_32BIT_KERNEL 1658 select CPU_SUPPORTS_64BIT_KERNEL 1659 select CPU_SUPPORTS_HIGHMEM 1660 select CPU_SUPPORTS_HUGEPAGES 1661 1662config CPU_SB1 1663 bool "SB1" 1664 depends on SYS_HAS_CPU_SB1 1665 select CPU_SUPPORTS_32BIT_KERNEL 1666 select CPU_SUPPORTS_64BIT_KERNEL 1667 select CPU_SUPPORTS_HIGHMEM 1668 select CPU_SUPPORTS_HUGEPAGES 1669 select WEAK_ORDERING 1670 1671config CPU_CAVIUM_OCTEON 1672 bool "Cavium Octeon processor" 1673 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1674 select CPU_HAS_PREFETCH 1675 select CPU_SUPPORTS_64BIT_KERNEL 1676 select WEAK_ORDERING 1677 select CPU_SUPPORTS_HIGHMEM 1678 select CPU_SUPPORTS_HUGEPAGES 1679 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1680 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1681 select MIPS_L1_CACHE_SHIFT_7 1682 select HAVE_KVM 1683 help 1684 The Cavium Octeon processor is a highly integrated chip containing 1685 many ethernet hardware widgets for networking tasks. The processor 1686 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1687 Full details can be found at http://www.caviumnetworks.com. 1688 1689config CPU_BMIPS 1690 bool "Broadcom BMIPS" 1691 depends on SYS_HAS_CPU_BMIPS 1692 select CPU_MIPS32 1693 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1694 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1695 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1696 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1697 select CPU_SUPPORTS_32BIT_KERNEL 1698 select DMA_NONCOHERENT 1699 select IRQ_MIPS_CPU 1700 select SWAP_IO_SPACE 1701 select WEAK_ORDERING 1702 select CPU_SUPPORTS_HIGHMEM 1703 select CPU_HAS_PREFETCH 1704 select CPU_SUPPORTS_CPUFREQ 1705 select MIPS_EXTERNAL_TIMER 1706 help 1707 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1708 1709config CPU_XLR 1710 bool "Netlogic XLR SoC" 1711 depends on SYS_HAS_CPU_XLR 1712 select CPU_SUPPORTS_32BIT_KERNEL 1713 select CPU_SUPPORTS_64BIT_KERNEL 1714 select CPU_SUPPORTS_HIGHMEM 1715 select CPU_SUPPORTS_HUGEPAGES 1716 select WEAK_ORDERING 1717 select WEAK_REORDERING_BEYOND_LLSC 1718 help 1719 Netlogic Microsystems XLR/XLS processors. 1720 1721config CPU_XLP 1722 bool "Netlogic XLP SoC" 1723 depends on SYS_HAS_CPU_XLP 1724 select CPU_SUPPORTS_32BIT_KERNEL 1725 select CPU_SUPPORTS_64BIT_KERNEL 1726 select CPU_SUPPORTS_HIGHMEM 1727 select WEAK_ORDERING 1728 select WEAK_REORDERING_BEYOND_LLSC 1729 select CPU_HAS_PREFETCH 1730 select CPU_MIPSR2 1731 select CPU_SUPPORTS_HUGEPAGES 1732 select MIPS_ASID_BITS_VARIABLE 1733 help 1734 Netlogic Microsystems XLP processors. 1735endchoice 1736 1737config CPU_MIPS32_3_5_FEATURES 1738 bool "MIPS32 Release 3.5 Features" 1739 depends on SYS_HAS_CPU_MIPS32_R3_5 1740 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1741 help 1742 Choose this option to build a kernel for release 2 or later of the 1743 MIPS32 architecture including features from the 3.5 release such as 1744 support for Enhanced Virtual Addressing (EVA). 1745 1746config CPU_MIPS32_3_5_EVA 1747 bool "Enhanced Virtual Addressing (EVA)" 1748 depends on CPU_MIPS32_3_5_FEATURES 1749 select EVA 1750 default y 1751 help 1752 Choose this option if you want to enable the Enhanced Virtual 1753 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1754 One of its primary benefits is an increase in the maximum size 1755 of lowmem (up to 3GB). If unsure, say 'N' here. 1756 1757config CPU_MIPS32_R5_FEATURES 1758 bool "MIPS32 Release 5 Features" 1759 depends on SYS_HAS_CPU_MIPS32_R5 1760 depends on CPU_MIPS32_R2 1761 help 1762 Choose this option to build a kernel for release 2 or later of the 1763 MIPS32 architecture including features from release 5 such as 1764 support for Extended Physical Addressing (XPA). 1765 1766config CPU_MIPS32_R5_XPA 1767 bool "Extended Physical Addressing (XPA)" 1768 depends on CPU_MIPS32_R5_FEATURES 1769 depends on !EVA 1770 depends on !PAGE_SIZE_4KB 1771 depends on SYS_SUPPORTS_HIGHMEM 1772 select XPA 1773 select HIGHMEM 1774 select PHYS_ADDR_T_64BIT 1775 default n 1776 help 1777 Choose this option if you want to enable the Extended Physical 1778 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1779 benefit is to increase physical addressing equal to or greater 1780 than 40 bits. Note that this has the side effect of turning on 1781 64-bit addressing which in turn makes the PTEs 64-bit in size. 1782 If unsure, say 'N' here. 1783 1784if CPU_LOONGSON2F 1785config CPU_NOP_WORKAROUNDS 1786 bool 1787 1788config CPU_JUMP_WORKAROUNDS 1789 bool 1790 1791config CPU_LOONGSON2F_WORKAROUNDS 1792 bool "Loongson 2F Workarounds" 1793 default y 1794 select CPU_NOP_WORKAROUNDS 1795 select CPU_JUMP_WORKAROUNDS 1796 help 1797 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1798 require workarounds. Without workarounds the system may hang 1799 unexpectedly. For more information please refer to the gas 1800 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1801 1802 Loongson 2F03 and later have fixed these issues and no workarounds 1803 are needed. The workarounds have no significant side effect on them 1804 but may decrease the performance of the system so this option should 1805 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1806 systems. 1807 1808 If unsure, please say Y. 1809endif # CPU_LOONGSON2F 1810 1811config SYS_SUPPORTS_ZBOOT 1812 bool 1813 select HAVE_KERNEL_GZIP 1814 select HAVE_KERNEL_BZIP2 1815 select HAVE_KERNEL_LZ4 1816 select HAVE_KERNEL_LZMA 1817 select HAVE_KERNEL_LZO 1818 select HAVE_KERNEL_XZ 1819 1820config SYS_SUPPORTS_ZBOOT_UART16550 1821 bool 1822 select SYS_SUPPORTS_ZBOOT 1823 1824config SYS_SUPPORTS_ZBOOT_UART_PROM 1825 bool 1826 select SYS_SUPPORTS_ZBOOT 1827 1828config CPU_LOONGSON2 1829 bool 1830 select CPU_SUPPORTS_32BIT_KERNEL 1831 select CPU_SUPPORTS_64BIT_KERNEL 1832 select CPU_SUPPORTS_HIGHMEM 1833 select CPU_SUPPORTS_HUGEPAGES 1834 1835config CPU_LOONGSON1 1836 bool 1837 select CPU_MIPS32 1838 select CPU_MIPSR2 1839 select CPU_HAS_PREFETCH 1840 select CPU_SUPPORTS_32BIT_KERNEL 1841 select CPU_SUPPORTS_HIGHMEM 1842 select CPU_SUPPORTS_CPUFREQ 1843 1844config CPU_BMIPS32_3300 1845 select SMP_UP if SMP 1846 bool 1847 1848config CPU_BMIPS4350 1849 bool 1850 select SYS_SUPPORTS_SMP 1851 select SYS_SUPPORTS_HOTPLUG_CPU 1852 1853config CPU_BMIPS4380 1854 bool 1855 select MIPS_L1_CACHE_SHIFT_6 1856 select SYS_SUPPORTS_SMP 1857 select SYS_SUPPORTS_HOTPLUG_CPU 1858 select CPU_HAS_RIXI 1859 1860config CPU_BMIPS5000 1861 bool 1862 select MIPS_CPU_SCACHE 1863 select MIPS_L1_CACHE_SHIFT_7 1864 select SYS_SUPPORTS_SMP 1865 select SYS_SUPPORTS_HOTPLUG_CPU 1866 select CPU_HAS_RIXI 1867 1868config SYS_HAS_CPU_LOONGSON3 1869 bool 1870 select CPU_SUPPORTS_CPUFREQ 1871 select CPU_HAS_RIXI 1872 1873config SYS_HAS_CPU_LOONGSON2E 1874 bool 1875 1876config SYS_HAS_CPU_LOONGSON2F 1877 bool 1878 select CPU_SUPPORTS_CPUFREQ 1879 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1880 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1881 1882config SYS_HAS_CPU_LOONGSON1B 1883 bool 1884 1885config SYS_HAS_CPU_LOONGSON1C 1886 bool 1887 1888config SYS_HAS_CPU_MIPS32_R1 1889 bool 1890 1891config SYS_HAS_CPU_MIPS32_R2 1892 bool 1893 1894config SYS_HAS_CPU_MIPS32_R3_5 1895 bool 1896 1897config SYS_HAS_CPU_MIPS32_R5 1898 bool 1899 1900config SYS_HAS_CPU_MIPS32_R6 1901 bool 1902 1903config SYS_HAS_CPU_MIPS64_R1 1904 bool 1905 1906config SYS_HAS_CPU_MIPS64_R2 1907 bool 1908 1909config SYS_HAS_CPU_MIPS64_R6 1910 bool 1911 1912config SYS_HAS_CPU_R3000 1913 bool 1914 1915config SYS_HAS_CPU_TX39XX 1916 bool 1917 1918config SYS_HAS_CPU_VR41XX 1919 bool 1920 1921config SYS_HAS_CPU_R4300 1922 bool 1923 1924config SYS_HAS_CPU_R4X00 1925 bool 1926 1927config SYS_HAS_CPU_TX49XX 1928 bool 1929 1930config SYS_HAS_CPU_R5000 1931 bool 1932 1933config SYS_HAS_CPU_R5432 1934 bool 1935 1936config SYS_HAS_CPU_R5500 1937 bool 1938 1939config SYS_HAS_CPU_NEVADA 1940 bool 1941 1942config SYS_HAS_CPU_R8000 1943 bool 1944 1945config SYS_HAS_CPU_R10000 1946 bool 1947 1948config SYS_HAS_CPU_RM7000 1949 bool 1950 1951config SYS_HAS_CPU_SB1 1952 bool 1953 1954config SYS_HAS_CPU_CAVIUM_OCTEON 1955 bool 1956 1957config SYS_HAS_CPU_BMIPS 1958 bool 1959 1960config SYS_HAS_CPU_BMIPS32_3300 1961 bool 1962 select SYS_HAS_CPU_BMIPS 1963 1964config SYS_HAS_CPU_BMIPS4350 1965 bool 1966 select SYS_HAS_CPU_BMIPS 1967 1968config SYS_HAS_CPU_BMIPS4380 1969 bool 1970 select SYS_HAS_CPU_BMIPS 1971 1972config SYS_HAS_CPU_BMIPS5000 1973 bool 1974 select SYS_HAS_CPU_BMIPS 1975 1976config SYS_HAS_CPU_XLR 1977 bool 1978 1979config SYS_HAS_CPU_XLP 1980 bool 1981 1982config MIPS_MALTA_PM 1983 depends on MIPS_MALTA 1984 depends on PCI 1985 bool 1986 default y 1987 1988# 1989# CPU may reorder R->R, R->W, W->R, W->W 1990# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1991# 1992config WEAK_ORDERING 1993 bool 1994 1995# 1996# CPU may reorder reads and writes beyond LL/SC 1997# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1998# 1999config WEAK_REORDERING_BEYOND_LLSC 2000 bool 2001endmenu 2002 2003# 2004# These two indicate any level of the MIPS32 and MIPS64 architecture 2005# 2006config CPU_MIPS32 2007 bool 2008 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2009 2010config CPU_MIPS64 2011 bool 2012 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2013 2014# 2015# These two indicate the revision of the architecture, either Release 1 or Release 2 2016# 2017config CPU_MIPSR1 2018 bool 2019 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2020 2021config CPU_MIPSR2 2022 bool 2023 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2024 select CPU_HAS_RIXI 2025 select MIPS_SPRAM 2026 2027config CPU_MIPSR6 2028 bool 2029 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2030 select CPU_HAS_RIXI 2031 select HAVE_ARCH_BITREVERSE 2032 select MIPS_ASID_BITS_VARIABLE 2033 select MIPS_CRC_SUPPORT 2034 select MIPS_SPRAM 2035 2036config EVA 2037 bool 2038 2039config XPA 2040 bool 2041 2042config SYS_SUPPORTS_32BIT_KERNEL 2043 bool 2044config SYS_SUPPORTS_64BIT_KERNEL 2045 bool 2046config CPU_SUPPORTS_32BIT_KERNEL 2047 bool 2048config CPU_SUPPORTS_64BIT_KERNEL 2049 bool 2050config CPU_SUPPORTS_CPUFREQ 2051 bool 2052config CPU_SUPPORTS_ADDRWINCFG 2053 bool 2054config CPU_SUPPORTS_HUGEPAGES 2055 bool 2056config CPU_SUPPORTS_UNCACHED_ACCELERATED 2057 bool 2058config MIPS_PGD_C0_CONTEXT 2059 bool 2060 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2061 2062# 2063# Set to y for ptrace access to watch registers. 2064# 2065config HARDWARE_WATCHPOINTS 2066 bool 2067 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2068 2069menu "Kernel type" 2070 2071choice 2072 prompt "Kernel code model" 2073 help 2074 You should only select this option if you have a workload that 2075 actually benefits from 64-bit processing or if your machine has 2076 large memory. You will only be presented a single option in this 2077 menu if your system does not support both 32-bit and 64-bit kernels. 2078 2079config 32BIT 2080 bool "32-bit kernel" 2081 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2082 select TRAD_SIGNALS 2083 help 2084 Select this option if you want to build a 32-bit kernel. 2085 2086config 64BIT 2087 bool "64-bit kernel" 2088 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2089 help 2090 Select this option if you want to build a 64-bit kernel. 2091 2092endchoice 2093 2094config KVM_GUEST 2095 bool "KVM Guest Kernel" 2096 depends on BROKEN_ON_SMP 2097 help 2098 Select this option if building a guest kernel for KVM (Trap & Emulate) 2099 mode. 2100 2101config KVM_GUEST_TIMER_FREQ 2102 int "Count/Compare Timer Frequency (MHz)" 2103 depends on KVM_GUEST 2104 default 100 2105 help 2106 Set this to non-zero if building a guest kernel for KVM to skip RTC 2107 emulation when determining guest CPU Frequency. Instead, the guest's 2108 timer frequency is specified directly. 2109 2110config MIPS_VA_BITS_48 2111 bool "48 bits virtual memory" 2112 depends on 64BIT 2113 help 2114 Support a maximum at least 48 bits of application virtual 2115 memory. Default is 40 bits or less, depending on the CPU. 2116 For page sizes 16k and above, this option results in a small 2117 memory overhead for page tables. For 4k page size, a fourth 2118 level of page tables is added which imposes both a memory 2119 overhead as well as slower TLB fault handling. 2120 2121 If unsure, say N. 2122 2123choice 2124 prompt "Kernel page size" 2125 default PAGE_SIZE_4KB 2126 2127config PAGE_SIZE_4KB 2128 bool "4kB" 2129 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2130 help 2131 This option select the standard 4kB Linux page size. On some 2132 R3000-family processors this is the only available page size. Using 2133 4kB page size will minimize memory consumption and is therefore 2134 recommended for low memory systems. 2135 2136config PAGE_SIZE_8KB 2137 bool "8kB" 2138 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2139 depends on !MIPS_VA_BITS_48 2140 help 2141 Using 8kB page size will result in higher performance kernel at 2142 the price of higher memory consumption. This option is available 2143 only on R8000 and cnMIPS processors. Note that you will need a 2144 suitable Linux distribution to support this. 2145 2146config PAGE_SIZE_16KB 2147 bool "16kB" 2148 depends on !CPU_R3000 && !CPU_TX39XX 2149 help 2150 Using 16kB page size will result in higher performance kernel at 2151 the price of higher memory consumption. This option is available on 2152 all non-R3000 family processors. Note that you will need a suitable 2153 Linux distribution to support this. 2154 2155config PAGE_SIZE_32KB 2156 bool "32kB" 2157 depends on CPU_CAVIUM_OCTEON 2158 depends on !MIPS_VA_BITS_48 2159 help 2160 Using 32kB page size will result in higher performance kernel at 2161 the price of higher memory consumption. This option is available 2162 only on cnMIPS cores. Note that you will need a suitable Linux 2163 distribution to support this. 2164 2165config PAGE_SIZE_64KB 2166 bool "64kB" 2167 depends on !CPU_R3000 && !CPU_TX39XX 2168 help 2169 Using 64kB page size will result in higher performance kernel at 2170 the price of higher memory consumption. This option is available on 2171 all non-R3000 family processor. Not that at the time of this 2172 writing this option is still high experimental. 2173 2174endchoice 2175 2176config FORCE_MAX_ZONEORDER 2177 int "Maximum zone order" 2178 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2179 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2180 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2181 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2182 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2183 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2184 range 11 64 2185 default "11" 2186 help 2187 The kernel memory allocator divides physically contiguous memory 2188 blocks into "zones", where each zone is a power of two number of 2189 pages. This option selects the largest power of two that the kernel 2190 keeps in the memory allocator. If you need to allocate very large 2191 blocks of physically contiguous memory, then you may need to 2192 increase this value. 2193 2194 This config option is actually maximum order plus one. For example, 2195 a value of 11 means that the largest free memory block is 2^10 pages. 2196 2197 The page size is not necessarily 4KB. Keep this in mind 2198 when choosing a value for this option. 2199 2200config BOARD_SCACHE 2201 bool 2202 2203config IP22_CPU_SCACHE 2204 bool 2205 select BOARD_SCACHE 2206 2207# 2208# Support for a MIPS32 / MIPS64 style S-caches 2209# 2210config MIPS_CPU_SCACHE 2211 bool 2212 select BOARD_SCACHE 2213 2214config R5000_CPU_SCACHE 2215 bool 2216 select BOARD_SCACHE 2217 2218config RM7000_CPU_SCACHE 2219 bool 2220 select BOARD_SCACHE 2221 2222config SIBYTE_DMA_PAGEOPS 2223 bool "Use DMA to clear/copy pages" 2224 depends on CPU_SB1 2225 help 2226 Instead of using the CPU to zero and copy pages, use a Data Mover 2227 channel. These DMA channels are otherwise unused by the standard 2228 SiByte Linux port. Seems to give a small performance benefit. 2229 2230config CPU_HAS_PREFETCH 2231 bool 2232 2233config CPU_GENERIC_DUMP_TLB 2234 bool 2235 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2236 2237config CPU_R4K_FPU 2238 bool 2239 default y if !(CPU_R3000 || CPU_TX39XX) 2240 2241config CPU_R4K_CACHE_TLB 2242 bool 2243 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2244 2245config MIPS_MT_SMP 2246 bool "MIPS MT SMP support (1 TC on each available VPE)" 2247 default y 2248 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2249 select CPU_MIPSR2_IRQ_VI 2250 select CPU_MIPSR2_IRQ_EI 2251 select SYNC_R4K 2252 select MIPS_MT 2253 select SMP 2254 select SMP_UP 2255 select SYS_SUPPORTS_SMP 2256 select SYS_SUPPORTS_SCHED_SMT 2257 select MIPS_PERF_SHARED_TC_COUNTERS 2258 help 2259 This is a kernel model which is known as SMVP. This is supported 2260 on cores with the MT ASE and uses the available VPEs to implement 2261 virtual processors which supports SMP. This is equivalent to the 2262 Intel Hyperthreading feature. For further information go to 2263 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2264 2265config MIPS_MT 2266 bool 2267 2268config SCHED_SMT 2269 bool "SMT (multithreading) scheduler support" 2270 depends on SYS_SUPPORTS_SCHED_SMT 2271 default n 2272 help 2273 SMT scheduler support improves the CPU scheduler's decision making 2274 when dealing with MIPS MT enabled cores at a cost of slightly 2275 increased overhead in some places. If unsure say N here. 2276 2277config SYS_SUPPORTS_SCHED_SMT 2278 bool 2279 2280config SYS_SUPPORTS_MULTITHREADING 2281 bool 2282 2283config MIPS_MT_FPAFF 2284 bool "Dynamic FPU affinity for FP-intensive threads" 2285 default y 2286 depends on MIPS_MT_SMP 2287 2288config MIPSR2_TO_R6_EMULATOR 2289 bool "MIPS R2-to-R6 emulator" 2290 depends on CPU_MIPSR6 2291 default y 2292 help 2293 Choose this option if you want to run non-R6 MIPS userland code. 2294 Even if you say 'Y' here, the emulator will still be disabled by 2295 default. You can enable it using the 'mipsr2emu' kernel option. 2296 The only reason this is a build-time option is to save ~14K from the 2297 final kernel image. 2298 2299config SYS_SUPPORTS_VPE_LOADER 2300 bool 2301 depends on SYS_SUPPORTS_MULTITHREADING 2302 help 2303 Indicates that the platform supports the VPE loader, and provides 2304 physical_memsize. 2305 2306config MIPS_VPE_LOADER 2307 bool "VPE loader support." 2308 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2309 select CPU_MIPSR2_IRQ_VI 2310 select CPU_MIPSR2_IRQ_EI 2311 select MIPS_MT 2312 help 2313 Includes a loader for loading an elf relocatable object 2314 onto another VPE and running it. 2315 2316config MIPS_VPE_LOADER_CMP 2317 bool 2318 default "y" 2319 depends on MIPS_VPE_LOADER && MIPS_CMP 2320 2321config MIPS_VPE_LOADER_MT 2322 bool 2323 default "y" 2324 depends on MIPS_VPE_LOADER && !MIPS_CMP 2325 2326config MIPS_VPE_LOADER_TOM 2327 bool "Load VPE program into memory hidden from linux" 2328 depends on MIPS_VPE_LOADER 2329 default y 2330 help 2331 The loader can use memory that is present but has been hidden from 2332 Linux using the kernel command line option "mem=xxMB". It's up to 2333 you to ensure the amount you put in the option and the space your 2334 program requires is less or equal to the amount physically present. 2335 2336config MIPS_VPE_APSP_API 2337 bool "Enable support for AP/SP API (RTLX)" 2338 depends on MIPS_VPE_LOADER 2339 2340config MIPS_VPE_APSP_API_CMP 2341 bool 2342 default "y" 2343 depends on MIPS_VPE_APSP_API && MIPS_CMP 2344 2345config MIPS_VPE_APSP_API_MT 2346 bool 2347 default "y" 2348 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2349 2350config MIPS_CMP 2351 bool "MIPS CMP framework support (DEPRECATED)" 2352 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2353 select SMP 2354 select SYNC_R4K 2355 select SYS_SUPPORTS_SMP 2356 select WEAK_ORDERING 2357 default n 2358 help 2359 Select this if you are using a bootloader which implements the "CMP 2360 framework" protocol (ie. YAMON) and want your kernel to make use of 2361 its ability to start secondary CPUs. 2362 2363 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2364 instead of this. 2365 2366config MIPS_CPS 2367 bool "MIPS Coherent Processing System support" 2368 depends on SYS_SUPPORTS_MIPS_CPS 2369 select MIPS_CM 2370 select MIPS_CPS_PM if HOTPLUG_CPU 2371 select SMP 2372 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2373 select SYS_SUPPORTS_HOTPLUG_CPU 2374 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2375 select SYS_SUPPORTS_SMP 2376 select WEAK_ORDERING 2377 help 2378 Select this if you wish to run an SMP kernel across multiple cores 2379 within a MIPS Coherent Processing System. When this option is 2380 enabled the kernel will probe for other cores and boot them with 2381 no external assistance. It is safe to enable this when hardware 2382 support is unavailable. 2383 2384config MIPS_CPS_PM 2385 depends on MIPS_CPS 2386 bool 2387 2388config MIPS_CM 2389 bool 2390 select MIPS_CPC 2391 2392config MIPS_CPC 2393 bool 2394 2395config SB1_PASS_2_WORKAROUNDS 2396 bool 2397 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2398 default y 2399 2400config SB1_PASS_2_1_WORKAROUNDS 2401 bool 2402 depends on CPU_SB1 && CPU_SB1_PASS_2 2403 default y 2404 2405 2406choice 2407 prompt "SmartMIPS or microMIPS ASE support" 2408 2409config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2410 bool "None" 2411 help 2412 Select this if you want neither microMIPS nor SmartMIPS support 2413 2414config CPU_HAS_SMARTMIPS 2415 depends on SYS_SUPPORTS_SMARTMIPS 2416 bool "SmartMIPS" 2417 help 2418 SmartMIPS is a extension of the MIPS32 architecture aimed at 2419 increased security at both hardware and software level for 2420 smartcards. Enabling this option will allow proper use of the 2421 SmartMIPS instructions by Linux applications. However a kernel with 2422 this option will not work on a MIPS core without SmartMIPS core. If 2423 you don't know you probably don't have SmartMIPS and should say N 2424 here. 2425 2426config CPU_MICROMIPS 2427 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2428 bool "microMIPS" 2429 help 2430 When this option is enabled the kernel will be built using the 2431 microMIPS ISA 2432 2433endchoice 2434 2435config CPU_HAS_MSA 2436 bool "Support for the MIPS SIMD Architecture" 2437 depends on CPU_SUPPORTS_MSA 2438 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2439 help 2440 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2441 and a set of SIMD instructions to operate on them. When this option 2442 is enabled the kernel will support allocating & switching MSA 2443 vector register contexts. If you know that your kernel will only be 2444 running on CPUs which do not support MSA or that your userland will 2445 not be making use of it then you may wish to say N here to reduce 2446 the size & complexity of your kernel. 2447 2448 If unsure, say Y. 2449 2450config CPU_HAS_WB 2451 bool 2452 2453config XKS01 2454 bool 2455 2456config CPU_HAS_RIXI 2457 bool 2458 2459# 2460# Vectored interrupt mode is an R2 feature 2461# 2462config CPU_MIPSR2_IRQ_VI 2463 bool 2464 2465# 2466# Extended interrupt mode is an R2 feature 2467# 2468config CPU_MIPSR2_IRQ_EI 2469 bool 2470 2471config CPU_HAS_SYNC 2472 bool 2473 depends on !CPU_R3000 2474 default y 2475 2476# 2477# CPU non-features 2478# 2479config CPU_DADDI_WORKAROUNDS 2480 bool 2481 2482config CPU_R4000_WORKAROUNDS 2483 bool 2484 select CPU_R4400_WORKAROUNDS 2485 2486config CPU_R4400_WORKAROUNDS 2487 bool 2488 2489config MIPS_ASID_SHIFT 2490 int 2491 default 6 if CPU_R3000 || CPU_TX39XX 2492 default 4 if CPU_R8000 2493 default 0 2494 2495config MIPS_ASID_BITS 2496 int 2497 default 0 if MIPS_ASID_BITS_VARIABLE 2498 default 6 if CPU_R3000 || CPU_TX39XX 2499 default 8 2500 2501config MIPS_ASID_BITS_VARIABLE 2502 bool 2503 2504config MIPS_CRC_SUPPORT 2505 bool 2506 2507# 2508# - Highmem only makes sense for the 32-bit kernel. 2509# - The current highmem code will only work properly on physically indexed 2510# caches such as R3000, SB1, R7000 or those that look like they're virtually 2511# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2512# moment we protect the user and offer the highmem option only on machines 2513# where it's known to be safe. This will not offer highmem on a few systems 2514# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2515# indexed CPUs but we're playing safe. 2516# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2517# know they might have memory configurations that could make use of highmem 2518# support. 2519# 2520config HIGHMEM 2521 bool "High Memory Support" 2522 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2523 2524config CPU_SUPPORTS_HIGHMEM 2525 bool 2526 2527config SYS_SUPPORTS_HIGHMEM 2528 bool 2529 2530config SYS_SUPPORTS_SMARTMIPS 2531 bool 2532 2533config SYS_SUPPORTS_MICROMIPS 2534 bool 2535 2536config SYS_SUPPORTS_MIPS16 2537 bool 2538 help 2539 This option must be set if a kernel might be executed on a MIPS16- 2540 enabled CPU even if MIPS16 is not actually being used. In other 2541 words, it makes the kernel MIPS16-tolerant. 2542 2543config CPU_SUPPORTS_MSA 2544 bool 2545 2546config ARCH_FLATMEM_ENABLE 2547 def_bool y 2548 depends on !NUMA && !CPU_LOONGSON2 2549 2550config ARCH_DISCONTIGMEM_ENABLE 2551 bool 2552 default y if SGI_IP27 2553 help 2554 Say Y to support efficient handling of discontiguous physical memory, 2555 for architectures which are either NUMA (Non-Uniform Memory Access) 2556 or have huge holes in the physical address space for other reasons. 2557 See <file:Documentation/vm/numa.rst> for more. 2558 2559config ARCH_SPARSEMEM_ENABLE 2560 bool 2561 select SPARSEMEM_STATIC 2562 2563config NUMA 2564 bool "NUMA Support" 2565 depends on SYS_SUPPORTS_NUMA 2566 help 2567 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2568 Access). This option improves performance on systems with more 2569 than two nodes; on two node systems it is generally better to 2570 leave it disabled; on single node systems disable this option 2571 disabled. 2572 2573config SYS_SUPPORTS_NUMA 2574 bool 2575 2576config RELOCATABLE 2577 bool "Relocatable kernel" 2578 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2579 help 2580 This builds a kernel image that retains relocation information 2581 so it can be loaded someplace besides the default 1MB. 2582 The relocations make the kernel binary about 15% larger, 2583 but are discarded at runtime 2584 2585config RELOCATION_TABLE_SIZE 2586 hex "Relocation table size" 2587 depends on RELOCATABLE 2588 range 0x0 0x01000000 2589 default "0x00100000" 2590 ---help--- 2591 A table of relocation data will be appended to the kernel binary 2592 and parsed at boot to fix up the relocated kernel. 2593 2594 This option allows the amount of space reserved for the table to be 2595 adjusted, although the default of 1Mb should be ok in most cases. 2596 2597 The build will fail and a valid size suggested if this is too small. 2598 2599 If unsure, leave at the default value. 2600 2601config RANDOMIZE_BASE 2602 bool "Randomize the address of the kernel image" 2603 depends on RELOCATABLE 2604 ---help--- 2605 Randomizes the physical and virtual address at which the 2606 kernel image is loaded, as a security feature that 2607 deters exploit attempts relying on knowledge of the location 2608 of kernel internals. 2609 2610 Entropy is generated using any coprocessor 0 registers available. 2611 2612 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2613 2614 If unsure, say N. 2615 2616config RANDOMIZE_BASE_MAX_OFFSET 2617 hex "Maximum kASLR offset" if EXPERT 2618 depends on RANDOMIZE_BASE 2619 range 0x0 0x40000000 if EVA || 64BIT 2620 range 0x0 0x08000000 2621 default "0x01000000" 2622 ---help--- 2623 When kASLR is active, this provides the maximum offset that will 2624 be applied to the kernel image. It should be set according to the 2625 amount of physical RAM available in the target system minus 2626 PHYSICAL_START and must be a power of 2. 2627 2628 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2629 EVA or 64-bit. The default is 16Mb. 2630 2631config NODES_SHIFT 2632 int 2633 default "6" 2634 depends on NEED_MULTIPLE_NODES 2635 2636config HW_PERF_EVENTS 2637 bool "Enable hardware performance counter support for perf events" 2638 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2639 default y 2640 help 2641 Enable hardware performance counter support for perf events. If 2642 disabled, perf events will use software events only. 2643 2644config SMP 2645 bool "Multi-Processing support" 2646 depends on SYS_SUPPORTS_SMP 2647 help 2648 This enables support for systems with more than one CPU. If you have 2649 a system with only one CPU, say N. If you have a system with more 2650 than one CPU, say Y. 2651 2652 If you say N here, the kernel will run on uni- and multiprocessor 2653 machines, but will use only one CPU of a multiprocessor machine. If 2654 you say Y here, the kernel will run on many, but not all, 2655 uniprocessor machines. On a uniprocessor machine, the kernel 2656 will run faster if you say N here. 2657 2658 People using multiprocessor machines who say Y here should also say 2659 Y to "Enhanced Real Time Clock Support", below. 2660 2661 See also the SMP-HOWTO available at 2662 <http://www.tldp.org/docs.html#howto>. 2663 2664 If you don't know what to do here, say N. 2665 2666config HOTPLUG_CPU 2667 bool "Support for hot-pluggable CPUs" 2668 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2669 help 2670 Say Y here to allow turning CPUs off and on. CPUs can be 2671 controlled through /sys/devices/system/cpu. 2672 (Note: power management support will enable this option 2673 automatically on SMP systems. ) 2674 Say N if you want to disable CPU hotplug. 2675 2676config SMP_UP 2677 bool 2678 2679config SYS_SUPPORTS_MIPS_CMP 2680 bool 2681 2682config SYS_SUPPORTS_MIPS_CPS 2683 bool 2684 2685config SYS_SUPPORTS_SMP 2686 bool 2687 2688config NR_CPUS_DEFAULT_4 2689 bool 2690 2691config NR_CPUS_DEFAULT_8 2692 bool 2693 2694config NR_CPUS_DEFAULT_16 2695 bool 2696 2697config NR_CPUS_DEFAULT_32 2698 bool 2699 2700config NR_CPUS_DEFAULT_64 2701 bool 2702 2703config NR_CPUS 2704 int "Maximum number of CPUs (2-256)" 2705 range 2 256 2706 depends on SMP 2707 default "4" if NR_CPUS_DEFAULT_4 2708 default "8" if NR_CPUS_DEFAULT_8 2709 default "16" if NR_CPUS_DEFAULT_16 2710 default "32" if NR_CPUS_DEFAULT_32 2711 default "64" if NR_CPUS_DEFAULT_64 2712 help 2713 This allows you to specify the maximum number of CPUs which this 2714 kernel will support. The maximum supported value is 32 for 32-bit 2715 kernel and 64 for 64-bit kernels; the minimum value which makes 2716 sense is 1 for Qemu (useful only for kernel debugging purposes) 2717 and 2 for all others. 2718 2719 This is purely to save memory - each supported CPU adds 2720 approximately eight kilobytes to the kernel image. For best 2721 performance should round up your number of processors to the next 2722 power of two. 2723 2724config MIPS_PERF_SHARED_TC_COUNTERS 2725 bool 2726 2727config MIPS_NR_CPU_NR_MAP_1024 2728 bool 2729 2730config MIPS_NR_CPU_NR_MAP 2731 int 2732 depends on SMP 2733 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2734 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2735 2736# 2737# Timer Interrupt Frequency Configuration 2738# 2739 2740choice 2741 prompt "Timer frequency" 2742 default HZ_250 2743 help 2744 Allows the configuration of the timer frequency. 2745 2746 config HZ_24 2747 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2748 2749 config HZ_48 2750 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2751 2752 config HZ_100 2753 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2754 2755 config HZ_128 2756 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2757 2758 config HZ_250 2759 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2760 2761 config HZ_256 2762 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2763 2764 config HZ_1000 2765 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2766 2767 config HZ_1024 2768 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2769 2770endchoice 2771 2772config SYS_SUPPORTS_24HZ 2773 bool 2774 2775config SYS_SUPPORTS_48HZ 2776 bool 2777 2778config SYS_SUPPORTS_100HZ 2779 bool 2780 2781config SYS_SUPPORTS_128HZ 2782 bool 2783 2784config SYS_SUPPORTS_250HZ 2785 bool 2786 2787config SYS_SUPPORTS_256HZ 2788 bool 2789 2790config SYS_SUPPORTS_1000HZ 2791 bool 2792 2793config SYS_SUPPORTS_1024HZ 2794 bool 2795 2796config SYS_SUPPORTS_ARBIT_HZ 2797 bool 2798 default y if !SYS_SUPPORTS_24HZ && \ 2799 !SYS_SUPPORTS_48HZ && \ 2800 !SYS_SUPPORTS_100HZ && \ 2801 !SYS_SUPPORTS_128HZ && \ 2802 !SYS_SUPPORTS_250HZ && \ 2803 !SYS_SUPPORTS_256HZ && \ 2804 !SYS_SUPPORTS_1000HZ && \ 2805 !SYS_SUPPORTS_1024HZ 2806 2807config HZ 2808 int 2809 default 24 if HZ_24 2810 default 48 if HZ_48 2811 default 100 if HZ_100 2812 default 128 if HZ_128 2813 default 250 if HZ_250 2814 default 256 if HZ_256 2815 default 1000 if HZ_1000 2816 default 1024 if HZ_1024 2817 2818config SCHED_HRTICK 2819 def_bool HIGH_RES_TIMERS 2820 2821source "kernel/Kconfig.preempt" 2822 2823config KEXEC 2824 bool "Kexec system call" 2825 select KEXEC_CORE 2826 help 2827 kexec is a system call that implements the ability to shutdown your 2828 current kernel, and to start another kernel. It is like a reboot 2829 but it is independent of the system firmware. And like a reboot 2830 you can start any kernel with it, not just Linux. 2831 2832 The name comes from the similarity to the exec system call. 2833 2834 It is an ongoing process to be certain the hardware in a machine 2835 is properly shutdown, so do not be surprised if this code does not 2836 initially work for you. As of this writing the exact hardware 2837 interface is strongly in flux, so no good recommendation can be 2838 made. 2839 2840config CRASH_DUMP 2841 bool "Kernel crash dumps" 2842 help 2843 Generate crash dump after being started by kexec. 2844 This should be normally only set in special crash dump kernels 2845 which are loaded in the main kernel with kexec-tools into 2846 a specially reserved region and then later executed after 2847 a crash by kdump/kexec. The crash dump kernel must be compiled 2848 to a memory address not used by the main kernel or firmware using 2849 PHYSICAL_START. 2850 2851config PHYSICAL_START 2852 hex "Physical address where the kernel is loaded" 2853 default "0xffffffff84000000" 2854 depends on CRASH_DUMP 2855 help 2856 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2857 If you plan to use kernel for capturing the crash dump change 2858 this value to start of the reserved region (the "X" value as 2859 specified in the "crashkernel=YM@XM" command line boot parameter 2860 passed to the panic-ed kernel). 2861 2862config SECCOMP 2863 bool "Enable seccomp to safely compute untrusted bytecode" 2864 depends on PROC_FS 2865 default y 2866 help 2867 This kernel feature is useful for number crunching applications 2868 that may need to compute untrusted bytecode during their 2869 execution. By using pipes or other transports made available to 2870 the process as file descriptors supporting the read/write 2871 syscalls, it's possible to isolate those applications in 2872 their own address space using seccomp. Once seccomp is 2873 enabled via /proc/<pid>/seccomp, it cannot be disabled 2874 and the task is only allowed to execute a few safe syscalls 2875 defined by each seccomp mode. 2876 2877 If unsure, say Y. Only embedded should say N here. 2878 2879config MIPS_O32_FP64_SUPPORT 2880 bool "Support for O32 binaries using 64-bit FP" 2881 depends on 32BIT || MIPS32_O32 2882 help 2883 When this is enabled, the kernel will support use of 64-bit floating 2884 point registers with binaries using the O32 ABI along with the 2885 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2886 32-bit MIPS systems this support is at the cost of increasing the 2887 size and complexity of the compiled FPU emulator. Thus if you are 2888 running a MIPS32 system and know that none of your userland binaries 2889 will require 64-bit floating point, you may wish to reduce the size 2890 of your kernel & potentially improve FP emulation performance by 2891 saying N here. 2892 2893 Although binutils currently supports use of this flag the details 2894 concerning its effect upon the O32 ABI in userland are still being 2895 worked on. In order to avoid userland becoming dependant upon current 2896 behaviour before the details have been finalised, this option should 2897 be considered experimental and only enabled by those working upon 2898 said details. 2899 2900 If unsure, say N. 2901 2902config USE_OF 2903 bool 2904 select OF 2905 select OF_EARLY_FLATTREE 2906 select IRQ_DOMAIN 2907 2908config BUILTIN_DTB 2909 bool 2910 2911choice 2912 prompt "Kernel appended dtb support" if USE_OF 2913 default MIPS_NO_APPENDED_DTB 2914 2915 config MIPS_NO_APPENDED_DTB 2916 bool "None" 2917 help 2918 Do not enable appended dtb support. 2919 2920 config MIPS_ELF_APPENDED_DTB 2921 bool "vmlinux" 2922 help 2923 With this option, the boot code will look for a device tree binary 2924 DTB) included in the vmlinux ELF section .appended_dtb. By default 2925 it is empty and the DTB can be appended using binutils command 2926 objcopy: 2927 2928 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2929 2930 This is meant as a backward compatiblity convenience for those 2931 systems with a bootloader that can't be upgraded to accommodate 2932 the documented boot protocol using a device tree. 2933 2934 config MIPS_RAW_APPENDED_DTB 2935 bool "vmlinux.bin or vmlinuz.bin" 2936 help 2937 With this option, the boot code will look for a device tree binary 2938 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2939 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2940 2941 This is meant as a backward compatibility convenience for those 2942 systems with a bootloader that can't be upgraded to accommodate 2943 the documented boot protocol using a device tree. 2944 2945 Beware that there is very little in terms of protection against 2946 this option being confused by leftover garbage in memory that might 2947 look like a DTB header after a reboot if no actual DTB is appended 2948 to vmlinux.bin. Do not leave this option active in a production kernel 2949 if you don't intend to always append a DTB. 2950endchoice 2951 2952choice 2953 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2954 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2955 !MIPS_MALTA && \ 2956 !CAVIUM_OCTEON_SOC 2957 default MIPS_CMDLINE_FROM_BOOTLOADER 2958 2959 config MIPS_CMDLINE_FROM_DTB 2960 depends on USE_OF 2961 bool "Dtb kernel arguments if available" 2962 2963 config MIPS_CMDLINE_DTB_EXTEND 2964 depends on USE_OF 2965 bool "Extend dtb kernel arguments with bootloader arguments" 2966 2967 config MIPS_CMDLINE_FROM_BOOTLOADER 2968 bool "Bootloader kernel arguments if available" 2969 2970 config MIPS_CMDLINE_BUILTIN_EXTEND 2971 depends on CMDLINE_BOOL 2972 bool "Extend builtin kernel arguments with bootloader arguments" 2973endchoice 2974 2975endmenu 2976 2977config LOCKDEP_SUPPORT 2978 bool 2979 default y 2980 2981config STACKTRACE_SUPPORT 2982 bool 2983 default y 2984 2985config HAVE_LATENCYTOP_SUPPORT 2986 bool 2987 default y 2988 2989config PGTABLE_LEVELS 2990 int 2991 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 2992 default 3 if 64BIT && !PAGE_SIZE_64KB 2993 default 2 2994 2995menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2996 2997config HW_HAS_EISA 2998 bool 2999config HW_HAS_PCI 3000 bool 3001 3002config PCI 3003 bool "Support for PCI controller" 3004 depends on HW_HAS_PCI 3005 select PCI_DOMAINS 3006 help 3007 Find out whether you have a PCI motherboard. PCI is the name of a 3008 bus system, i.e. the way the CPU talks to the other stuff inside 3009 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3010 say Y, otherwise N. 3011 3012config HT_PCI 3013 bool "Support for HT-linked PCI" 3014 default y 3015 depends on CPU_LOONGSON3 3016 select PCI 3017 select PCI_DOMAINS 3018 help 3019 Loongson family machines use Hyper-Transport bus for inter-core 3020 connection and device connection. The PCI bus is a subordinate 3021 linked at HT. Choose Y for Loongson-3 based machines. 3022 3023config PCI_DOMAINS 3024 bool 3025 3026config PCI_DOMAINS_GENERIC 3027 bool 3028 3029config PCI_DRIVERS_GENERIC 3030 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3031 bool 3032 3033config PCI_DRIVERS_LEGACY 3034 def_bool !PCI_DRIVERS_GENERIC 3035 select NO_GENERIC_PCI_IOPORT_MAP 3036 3037source "drivers/pci/Kconfig" 3038 3039# 3040# ISA support is now enabled via select. Too many systems still have the one 3041# or other ISA chip on the board that users don't know about so don't expect 3042# users to choose the right thing ... 3043# 3044config ISA 3045 bool 3046 3047config EISA 3048 bool "EISA support" 3049 depends on HW_HAS_EISA 3050 select ISA 3051 select GENERIC_ISA_DMA 3052 ---help--- 3053 The Extended Industry Standard Architecture (EISA) bus was 3054 developed as an open alternative to the IBM MicroChannel bus. 3055 3056 The EISA bus provided some of the features of the IBM MicroChannel 3057 bus while maintaining backward compatibility with cards made for 3058 the older ISA bus. The EISA bus saw limited use between 1988 and 3059 1995 when it was made obsolete by the PCI bus. 3060 3061 Say Y here if you are building a kernel for an EISA-based machine. 3062 3063 Otherwise, say N. 3064 3065source "drivers/eisa/Kconfig" 3066 3067config TC 3068 bool "TURBOchannel support" 3069 depends on MACH_DECSTATION 3070 help 3071 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3072 processors. TURBOchannel programming specifications are available 3073 at: 3074 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3075 and: 3076 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3077 Linux driver support status is documented at: 3078 <http://www.linux-mips.org/wiki/DECstation> 3079 3080config MMU 3081 bool 3082 default y 3083 3084config ARCH_MMAP_RND_BITS_MIN 3085 default 12 if 64BIT 3086 default 8 3087 3088config ARCH_MMAP_RND_BITS_MAX 3089 default 18 if 64BIT 3090 default 15 3091 3092config ARCH_MMAP_RND_COMPAT_BITS_MIN 3093 default 8 3094 3095config ARCH_MMAP_RND_COMPAT_BITS_MAX 3096 default 15 3097 3098config I8253 3099 bool 3100 select CLKSRC_I8253 3101 select CLKEVT_I8253 3102 select MIPS_EXTERNAL_TIMER 3103 3104config ZONE_DMA 3105 bool 3106 3107config ZONE_DMA32 3108 bool 3109 3110source "drivers/pcmcia/Kconfig" 3111 3112config RAPIDIO 3113 tristate "RapidIO support" 3114 depends on PCI 3115 default n 3116 help 3117 If you say Y here, the kernel will include drivers and 3118 infrastructure code to support RapidIO interconnect devices. 3119 3120source "drivers/rapidio/Kconfig" 3121 3122endmenu 3123 3124config TRAD_SIGNALS 3125 bool 3126 3127config MIPS32_COMPAT 3128 bool 3129 3130config COMPAT 3131 bool 3132 3133config SYSVIPC_COMPAT 3134 bool 3135 3136config MIPS32_O32 3137 bool "Kernel support for o32 binaries" 3138 depends on 64BIT 3139 select ARCH_WANT_OLD_COMPAT_IPC 3140 select COMPAT 3141 select MIPS32_COMPAT 3142 select SYSVIPC_COMPAT if SYSVIPC 3143 help 3144 Select this option if you want to run o32 binaries. These are pure 3145 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3146 existing binaries are in this format. 3147 3148 If unsure, say Y. 3149 3150config MIPS32_N32 3151 bool "Kernel support for n32 binaries" 3152 depends on 64BIT 3153 select COMPAT 3154 select MIPS32_COMPAT 3155 select SYSVIPC_COMPAT if SYSVIPC 3156 help 3157 Select this option if you want to run n32 binaries. These are 3158 64-bit binaries using 32-bit quantities for addressing and certain 3159 data that would normally be 64-bit. They are used in special 3160 cases. 3161 3162 If unsure, say N. 3163 3164config BINFMT_ELF32 3165 bool 3166 default y if MIPS32_O32 || MIPS32_N32 3167 select ELFCORE 3168 3169menu "Power management options" 3170 3171config ARCH_HIBERNATION_POSSIBLE 3172 def_bool y 3173 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3174 3175config ARCH_SUSPEND_POSSIBLE 3176 def_bool y 3177 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3178 3179source "kernel/power/Kconfig" 3180 3181endmenu 3182 3183config MIPS_EXTERNAL_TIMER 3184 bool 3185 3186menu "CPU Power Management" 3187 3188if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3189source "drivers/cpufreq/Kconfig" 3190endif 3191 3192source "drivers/cpuidle/Kconfig" 3193 3194endmenu 3195 3196source "drivers/firmware/Kconfig" 3197 3198source "arch/mips/kvm/Kconfig" 3199