1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT 8 select ARCH_HAS_FORTIFY_SOURCE 9 select ARCH_HAS_KCOV 10 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA 11 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 12 select ARCH_HAS_STRNCPY_FROM_USER 13 select ARCH_HAS_STRNLEN_USER 14 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 15 select ARCH_HAS_UBSAN_SANITIZE_ALL 16 select ARCH_HAS_GCOV_PROFILE_ALL 17 select ARCH_KEEP_MEMBLOCK 18 select ARCH_SUPPORTS_UPROBES 19 select ARCH_USE_BUILTIN_BSWAP 20 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 21 select ARCH_USE_MEMTEST 22 select ARCH_USE_QUEUED_RWLOCKS 23 select ARCH_USE_QUEUED_SPINLOCKS 24 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES 25 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 26 select ARCH_WANT_IPC_PARSE_VERSION 27 select ARCH_WANT_LD_ORPHAN_WARN 28 select BUILDTIME_TABLE_SORT 29 select CLONE_BACKWARDS 30 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 31 select CPU_PM if CPU_IDLE 32 select GENERIC_ATOMIC64 if !64BIT 33 select GENERIC_CMOS_UPDATE 34 select GENERIC_CPU_AUTOPROBE 35 select GENERIC_FIND_FIRST_BIT 36 select GENERIC_GETTIMEOFDAY 37 select GENERIC_IOMAP 38 select GENERIC_IRQ_PROBE 39 select GENERIC_IRQ_SHOW 40 select GENERIC_ISA_DMA if EISA 41 select GENERIC_LIB_ASHLDI3 42 select GENERIC_LIB_ASHRDI3 43 select GENERIC_LIB_CMPDI2 44 select GENERIC_LIB_LSHRDI3 45 select GENERIC_LIB_UCMPDI2 46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 47 select GENERIC_SMP_IDLE_THREAD 48 select GENERIC_TIME_VSYSCALL 49 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 50 select HAVE_ARCH_COMPILER_H 51 select HAVE_ARCH_JUMP_LABEL 52 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT 53 select HAVE_ARCH_MMAP_RND_BITS if MMU 54 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 55 select HAVE_ARCH_SECCOMP_FILTER 56 select HAVE_ARCH_TRACEHOOK 57 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 58 select HAVE_ASM_MODVERSIONS 59 select HAVE_CONTEXT_TRACKING 60 select HAVE_TIF_NOHZ 61 select HAVE_C_RECORDMCOUNT 62 select HAVE_DEBUG_KMEMLEAK 63 select HAVE_DEBUG_STACKOVERFLOW 64 select HAVE_DMA_CONTIGUOUS 65 select HAVE_DYNAMIC_FTRACE 66 select HAVE_EBPF_JIT if !CPU_MICROMIPS && \ 67 !CPU_DADDI_WORKAROUNDS && \ 68 !CPU_R4000_WORKAROUNDS && \ 69 !CPU_R4400_WORKAROUNDS 70 select HAVE_EXIT_THREAD 71 select HAVE_FAST_GUP 72 select HAVE_FTRACE_MCOUNT_RECORD 73 select HAVE_FUNCTION_GRAPH_TRACER 74 select HAVE_FUNCTION_TRACER 75 select HAVE_GCC_PLUGINS 76 select HAVE_GENERIC_VDSO 77 select HAVE_IOREMAP_PROT 78 select HAVE_IRQ_EXIT_ON_IRQ_STACK 79 select HAVE_IRQ_TIME_ACCOUNTING 80 select HAVE_KPROBES 81 select HAVE_KRETPROBES 82 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 83 select HAVE_MOD_ARCH_SPECIFIC 84 select HAVE_NMI 85 select HAVE_PERF_EVENTS 86 select HAVE_PERF_REGS 87 select HAVE_PERF_USER_STACK_DUMP 88 select HAVE_REGS_AND_STACK_ACCESS_API 89 select HAVE_RSEQ 90 select HAVE_SPARSE_SYSCALL_NR 91 select HAVE_STACKPROTECTOR 92 select HAVE_SYSCALL_TRACEPOINTS 93 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 94 select IRQ_FORCED_THREADING 95 select ISA if EISA 96 select MODULES_USE_ELF_REL if MODULES 97 select MODULES_USE_ELF_RELA if MODULES && 64BIT 98 select PERF_USE_VMALLOC 99 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI 100 select RTC_LIB 101 select SYSCTL_EXCEPTION_TRACE 102 select TRACE_IRQFLAGS_SUPPORT 103 select VIRT_TO_BUS 104 select ARCH_HAS_ELFCORE_COMPAT 105 106config MIPS_FIXUP_BIGPHYS_ADDR 107 bool 108 109config MIPS_GENERIC 110 bool 111 112config MACH_INGENIC 113 bool 114 select SYS_SUPPORTS_32BIT_KERNEL 115 select SYS_SUPPORTS_LITTLE_ENDIAN 116 select SYS_SUPPORTS_ZBOOT 117 select DMA_NONCOHERENT 118 select ARCH_HAS_SYNC_DMA_FOR_CPU 119 select IRQ_MIPS_CPU 120 select PINCTRL 121 select GPIOLIB 122 select COMMON_CLK 123 select GENERIC_IRQ_CHIP 124 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 125 select USE_OF 126 select CPU_SUPPORTS_CPUFREQ 127 select MIPS_EXTERNAL_TIMER 128 129menu "Machine selection" 130 131choice 132 prompt "System type" 133 default MIPS_GENERIC_KERNEL 134 135config MIPS_GENERIC_KERNEL 136 bool "Generic board-agnostic MIPS kernel" 137 select ARCH_HAS_SETUP_DMA_OPS 138 select MIPS_GENERIC 139 select BOOT_RAW 140 select BUILTIN_DTB 141 select CEVT_R4K 142 select CLKSRC_MIPS_GIC 143 select COMMON_CLK 144 select CPU_MIPSR2_IRQ_EI 145 select CPU_MIPSR2_IRQ_VI 146 select CSRC_R4K 147 select DMA_NONCOHERENT 148 select HAVE_PCI 149 select IRQ_MIPS_CPU 150 select MIPS_AUTO_PFN_OFFSET 151 select MIPS_CPU_SCACHE 152 select MIPS_GIC 153 select MIPS_L1_CACHE_SHIFT_7 154 select NO_EXCEPT_FILL 155 select PCI_DRIVERS_GENERIC 156 select SMP_UP if SMP 157 select SWAP_IO_SPACE 158 select SYS_HAS_CPU_MIPS32_R1 159 select SYS_HAS_CPU_MIPS32_R2 160 select SYS_HAS_CPU_MIPS32_R6 161 select SYS_HAS_CPU_MIPS64_R1 162 select SYS_HAS_CPU_MIPS64_R2 163 select SYS_HAS_CPU_MIPS64_R6 164 select SYS_SUPPORTS_32BIT_KERNEL 165 select SYS_SUPPORTS_64BIT_KERNEL 166 select SYS_SUPPORTS_BIG_ENDIAN 167 select SYS_SUPPORTS_HIGHMEM 168 select SYS_SUPPORTS_LITTLE_ENDIAN 169 select SYS_SUPPORTS_MICROMIPS 170 select SYS_SUPPORTS_MIPS16 171 select SYS_SUPPORTS_MIPS_CPS 172 select SYS_SUPPORTS_MULTITHREADING 173 select SYS_SUPPORTS_RELOCATABLE 174 select SYS_SUPPORTS_SMARTMIPS 175 select SYS_SUPPORTS_ZBOOT 176 select UHI_BOOT 177 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 178 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 179 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 180 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 181 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 182 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 183 select USE_OF 184 help 185 Select this to build a kernel which aims to support multiple boards, 186 generally using a flattened device tree passed from the bootloader 187 using the boot protocol defined in the UHI (Unified Hosting 188 Interface) specification. 189 190config MIPS_ALCHEMY 191 bool "Alchemy processor based machines" 192 select PHYS_ADDR_T_64BIT 193 select CEVT_R4K 194 select CSRC_R4K 195 select IRQ_MIPS_CPU 196 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is 197 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 198 select SYS_HAS_CPU_MIPS32_R1 199 select SYS_SUPPORTS_32BIT_KERNEL 200 select SYS_SUPPORTS_APM_EMULATION 201 select GPIOLIB 202 select SYS_SUPPORTS_ZBOOT 203 select COMMON_CLK 204 205config AR7 206 bool "Texas Instruments AR7" 207 select BOOT_ELF32 208 select COMMON_CLK 209 select DMA_NONCOHERENT 210 select CEVT_R4K 211 select CSRC_R4K 212 select IRQ_MIPS_CPU 213 select NO_EXCEPT_FILL 214 select SWAP_IO_SPACE 215 select SYS_HAS_CPU_MIPS32_R1 216 select SYS_HAS_EARLY_PRINTK 217 select SYS_SUPPORTS_32BIT_KERNEL 218 select SYS_SUPPORTS_LITTLE_ENDIAN 219 select SYS_SUPPORTS_MIPS16 220 select SYS_SUPPORTS_ZBOOT_UART16550 221 select GPIOLIB 222 select VLYNQ 223 help 224 Support for the Texas Instruments AR7 System-on-a-Chip 225 family: TNETD7100, 7200 and 7300. 226 227config ATH25 228 bool "Atheros AR231x/AR531x SoC support" 229 select CEVT_R4K 230 select CSRC_R4K 231 select DMA_NONCOHERENT 232 select IRQ_MIPS_CPU 233 select IRQ_DOMAIN 234 select SYS_HAS_CPU_MIPS32_R1 235 select SYS_SUPPORTS_BIG_ENDIAN 236 select SYS_SUPPORTS_32BIT_KERNEL 237 select SYS_HAS_EARLY_PRINTK 238 help 239 Support for Atheros AR231x and Atheros AR531x based boards 240 241config ATH79 242 bool "Atheros AR71XX/AR724X/AR913X based boards" 243 select ARCH_HAS_RESET_CONTROLLER 244 select BOOT_RAW 245 select CEVT_R4K 246 select CSRC_R4K 247 select DMA_NONCOHERENT 248 select GPIOLIB 249 select PINCTRL 250 select COMMON_CLK 251 select IRQ_MIPS_CPU 252 select SYS_HAS_CPU_MIPS32_R2 253 select SYS_HAS_EARLY_PRINTK 254 select SYS_SUPPORTS_32BIT_KERNEL 255 select SYS_SUPPORTS_BIG_ENDIAN 256 select SYS_SUPPORTS_MIPS16 257 select SYS_SUPPORTS_ZBOOT_UART_PROM 258 select USE_OF 259 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 260 help 261 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 262 263config BMIPS_GENERIC 264 bool "Broadcom Generic BMIPS kernel" 265 select ARCH_HAS_RESET_CONTROLLER 266 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 267 select ARCH_HAS_PHYS_TO_DMA 268 select BOOT_RAW 269 select NO_EXCEPT_FILL 270 select USE_OF 271 select CEVT_R4K 272 select CSRC_R4K 273 select SYNC_R4K 274 select COMMON_CLK 275 select BCM6345_L1_IRQ 276 select BCM7038_L1_IRQ 277 select BCM7120_L2_IRQ 278 select BRCMSTB_L2_IRQ 279 select IRQ_MIPS_CPU 280 select DMA_NONCOHERENT 281 select SYS_SUPPORTS_32BIT_KERNEL 282 select SYS_SUPPORTS_LITTLE_ENDIAN 283 select SYS_SUPPORTS_BIG_ENDIAN 284 select SYS_SUPPORTS_HIGHMEM 285 select SYS_HAS_CPU_BMIPS32_3300 286 select SYS_HAS_CPU_BMIPS4350 287 select SYS_HAS_CPU_BMIPS4380 288 select SYS_HAS_CPU_BMIPS5000 289 select SWAP_IO_SPACE 290 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 291 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 292 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 293 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 294 select HARDIRQS_SW_RESEND 295 help 296 Build a generic DT-based kernel image that boots on select 297 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 298 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 299 must be set appropriately for your board. 300 301config BCM47XX 302 bool "Broadcom BCM47XX based boards" 303 select BOOT_RAW 304 select CEVT_R4K 305 select CSRC_R4K 306 select DMA_NONCOHERENT 307 select HAVE_PCI 308 select IRQ_MIPS_CPU 309 select SYS_HAS_CPU_MIPS32_R1 310 select NO_EXCEPT_FILL 311 select SYS_SUPPORTS_32BIT_KERNEL 312 select SYS_SUPPORTS_LITTLE_ENDIAN 313 select SYS_SUPPORTS_MIPS16 314 select SYS_SUPPORTS_ZBOOT 315 select SYS_HAS_EARLY_PRINTK 316 select USE_GENERIC_EARLY_PRINTK_8250 317 select GPIOLIB 318 select LEDS_GPIO_REGISTER 319 select BCM47XX_NVRAM 320 select BCM47XX_SPROM 321 select BCM47XX_SSB if !BCM47XX_BCMA 322 help 323 Support for BCM47XX based boards 324 325config BCM63XX 326 bool "Broadcom BCM63XX based boards" 327 select BOOT_RAW 328 select CEVT_R4K 329 select CSRC_R4K 330 select SYNC_R4K 331 select DMA_NONCOHERENT 332 select IRQ_MIPS_CPU 333 select SYS_SUPPORTS_32BIT_KERNEL 334 select SYS_SUPPORTS_BIG_ENDIAN 335 select SYS_HAS_EARLY_PRINTK 336 select SWAP_IO_SPACE 337 select GPIOLIB 338 select MIPS_L1_CACHE_SHIFT_4 339 select HAVE_LEGACY_CLK 340 help 341 Support for BCM63XX based boards 342 343config MIPS_COBALT 344 bool "Cobalt Server" 345 select CEVT_R4K 346 select CSRC_R4K 347 select CEVT_GT641XX 348 select DMA_NONCOHERENT 349 select FORCE_PCI 350 select I8253 351 select I8259 352 select IRQ_MIPS_CPU 353 select IRQ_GT641XX 354 select PCI_GT64XXX_PCI0 355 select SYS_HAS_CPU_NEVADA 356 select SYS_HAS_EARLY_PRINTK 357 select SYS_SUPPORTS_32BIT_KERNEL 358 select SYS_SUPPORTS_64BIT_KERNEL 359 select SYS_SUPPORTS_LITTLE_ENDIAN 360 select USE_GENERIC_EARLY_PRINTK_8250 361 362config MACH_DECSTATION 363 bool "DECstations" 364 select BOOT_ELF32 365 select CEVT_DS1287 366 select CEVT_R4K if CPU_R4X00 367 select CSRC_IOASIC 368 select CSRC_R4K if CPU_R4X00 369 select CPU_DADDI_WORKAROUNDS if 64BIT 370 select CPU_R4000_WORKAROUNDS if 64BIT 371 select CPU_R4400_WORKAROUNDS if 64BIT 372 select DMA_NONCOHERENT 373 select NO_IOPORT_MAP 374 select IRQ_MIPS_CPU 375 select SYS_HAS_CPU_R3000 376 select SYS_HAS_CPU_R4X00 377 select SYS_SUPPORTS_32BIT_KERNEL 378 select SYS_SUPPORTS_64BIT_KERNEL 379 select SYS_SUPPORTS_LITTLE_ENDIAN 380 select SYS_SUPPORTS_128HZ 381 select SYS_SUPPORTS_256HZ 382 select SYS_SUPPORTS_1024HZ 383 select MIPS_L1_CACHE_SHIFT_4 384 help 385 This enables support for DEC's MIPS based workstations. For details 386 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 387 DECstation porting pages on <http://decstation.unix-ag.org/>. 388 389 If you have one of the following DECstation Models you definitely 390 want to choose R4xx0 for the CPU Type: 391 392 DECstation 5000/50 393 DECstation 5000/150 394 DECstation 5000/260 395 DECsystem 5900/260 396 397 otherwise choose R3000. 398 399config MACH_JAZZ 400 bool "Jazz family of machines" 401 select ARC_MEMORY 402 select ARC_PROMLIB 403 select ARCH_MIGHT_HAVE_PC_PARPORT 404 select ARCH_MIGHT_HAVE_PC_SERIO 405 select DMA_OPS 406 select FW_ARC 407 select FW_ARC32 408 select ARCH_MAY_HAVE_PC_FDC 409 select CEVT_R4K 410 select CSRC_R4K 411 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 412 select GENERIC_ISA_DMA 413 select HAVE_PCSPKR_PLATFORM 414 select IRQ_MIPS_CPU 415 select I8253 416 select I8259 417 select ISA 418 select SYS_HAS_CPU_R4X00 419 select SYS_SUPPORTS_32BIT_KERNEL 420 select SYS_SUPPORTS_64BIT_KERNEL 421 select SYS_SUPPORTS_100HZ 422 select SYS_SUPPORTS_LITTLE_ENDIAN 423 help 424 This a family of machines based on the MIPS R4030 chipset which was 425 used by several vendors to build RISC/os and Windows NT workstations. 426 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 427 Olivetti M700-10 workstations. 428 429config MACH_INGENIC_SOC 430 bool "Ingenic SoC based machines" 431 select MIPS_GENERIC 432 select MACH_INGENIC 433 select SYS_SUPPORTS_ZBOOT_UART16550 434 select CPU_SUPPORTS_CPUFREQ 435 select MIPS_EXTERNAL_TIMER 436 437config LANTIQ 438 bool "Lantiq based platforms" 439 select DMA_NONCOHERENT 440 select IRQ_MIPS_CPU 441 select CEVT_R4K 442 select CSRC_R4K 443 select SYS_HAS_CPU_MIPS32_R1 444 select SYS_HAS_CPU_MIPS32_R2 445 select SYS_SUPPORTS_BIG_ENDIAN 446 select SYS_SUPPORTS_32BIT_KERNEL 447 select SYS_SUPPORTS_MIPS16 448 select SYS_SUPPORTS_MULTITHREADING 449 select SYS_SUPPORTS_VPE_LOADER 450 select SYS_HAS_EARLY_PRINTK 451 select GPIOLIB 452 select SWAP_IO_SPACE 453 select BOOT_RAW 454 select HAVE_LEGACY_CLK 455 select USE_OF 456 select PINCTRL 457 select PINCTRL_LANTIQ 458 select ARCH_HAS_RESET_CONTROLLER 459 select RESET_CONTROLLER 460 461config MACH_LOONGSON32 462 bool "Loongson 32-bit family of machines" 463 select SYS_SUPPORTS_ZBOOT 464 help 465 This enables support for the Loongson-1 family of machines. 466 467 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 468 the Institute of Computing Technology (ICT), Chinese Academy of 469 Sciences (CAS). 470 471config MACH_LOONGSON2EF 472 bool "Loongson-2E/F family of machines" 473 select SYS_SUPPORTS_ZBOOT 474 help 475 This enables the support of early Loongson-2E/F family of machines. 476 477config MACH_LOONGSON64 478 bool "Loongson 64-bit family of machines" 479 select ARCH_SPARSEMEM_ENABLE 480 select ARCH_MIGHT_HAVE_PC_PARPORT 481 select ARCH_MIGHT_HAVE_PC_SERIO 482 select GENERIC_ISA_DMA_SUPPORT_BROKEN 483 select BOOT_ELF32 484 select BOARD_SCACHE 485 select CSRC_R4K 486 select CEVT_R4K 487 select CPU_HAS_WB 488 select FORCE_PCI 489 select ISA 490 select I8259 491 select IRQ_MIPS_CPU 492 select NO_EXCEPT_FILL 493 select NR_CPUS_DEFAULT_64 494 select USE_GENERIC_EARLY_PRINTK_8250 495 select PCI_DRIVERS_GENERIC 496 select SYS_HAS_CPU_LOONGSON64 497 select SYS_HAS_EARLY_PRINTK 498 select SYS_SUPPORTS_SMP 499 select SYS_SUPPORTS_HOTPLUG_CPU 500 select SYS_SUPPORTS_NUMA 501 select SYS_SUPPORTS_64BIT_KERNEL 502 select SYS_SUPPORTS_HIGHMEM 503 select SYS_SUPPORTS_LITTLE_ENDIAN 504 select SYS_SUPPORTS_ZBOOT 505 select SYS_SUPPORTS_RELOCATABLE 506 select ZONE_DMA32 507 select COMMON_CLK 508 select USE_OF 509 select BUILTIN_DTB 510 select PCI_HOST_GENERIC 511 help 512 This enables the support of Loongson-2/3 family of machines. 513 514 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 515 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 516 and Loongson-2F which will be removed), developed by the Institute 517 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 518 519config MIPS_MALTA 520 bool "MIPS Malta board" 521 select ARCH_MAY_HAVE_PC_FDC 522 select ARCH_MIGHT_HAVE_PC_PARPORT 523 select ARCH_MIGHT_HAVE_PC_SERIO 524 select BOOT_ELF32 525 select BOOT_RAW 526 select BUILTIN_DTB 527 select CEVT_R4K 528 select CLKSRC_MIPS_GIC 529 select COMMON_CLK 530 select CSRC_R4K 531 select DMA_NONCOHERENT 532 select GENERIC_ISA_DMA 533 select HAVE_PCSPKR_PLATFORM 534 select HAVE_PCI 535 select I8253 536 select I8259 537 select IRQ_MIPS_CPU 538 select MIPS_BONITO64 539 select MIPS_CPU_SCACHE 540 select MIPS_GIC 541 select MIPS_L1_CACHE_SHIFT_6 542 select MIPS_MSC 543 select PCI_GT64XXX_PCI0 544 select SMP_UP if SMP 545 select SWAP_IO_SPACE 546 select SYS_HAS_CPU_MIPS32_R1 547 select SYS_HAS_CPU_MIPS32_R2 548 select SYS_HAS_CPU_MIPS32_R3_5 549 select SYS_HAS_CPU_MIPS32_R5 550 select SYS_HAS_CPU_MIPS32_R6 551 select SYS_HAS_CPU_MIPS64_R1 552 select SYS_HAS_CPU_MIPS64_R2 553 select SYS_HAS_CPU_MIPS64_R6 554 select SYS_HAS_CPU_NEVADA 555 select SYS_HAS_CPU_RM7000 556 select SYS_SUPPORTS_32BIT_KERNEL 557 select SYS_SUPPORTS_64BIT_KERNEL 558 select SYS_SUPPORTS_BIG_ENDIAN 559 select SYS_SUPPORTS_HIGHMEM 560 select SYS_SUPPORTS_LITTLE_ENDIAN 561 select SYS_SUPPORTS_MICROMIPS 562 select SYS_SUPPORTS_MIPS16 563 select SYS_SUPPORTS_MIPS_CMP 564 select SYS_SUPPORTS_MIPS_CPS 565 select SYS_SUPPORTS_MULTITHREADING 566 select SYS_SUPPORTS_RELOCATABLE 567 select SYS_SUPPORTS_SMARTMIPS 568 select SYS_SUPPORTS_VPE_LOADER 569 select SYS_SUPPORTS_ZBOOT 570 select USE_OF 571 select WAR_ICACHE_REFILLS 572 select ZONE_DMA32 if 64BIT 573 help 574 This enables support for the MIPS Technologies Malta evaluation 575 board. 576 577config MACH_PIC32 578 bool "Microchip PIC32 Family" 579 help 580 This enables support for the Microchip PIC32 family of platforms. 581 582 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 583 microcontrollers. 584 585config MACH_VR41XX 586 bool "NEC VR4100 series based machines" 587 select CEVT_R4K 588 select CSRC_R4K 589 select SYS_HAS_CPU_VR41XX 590 select SYS_SUPPORTS_MIPS16 591 select GPIOLIB 592 593config MACH_NINTENDO64 594 bool "Nintendo 64 console" 595 select CEVT_R4K 596 select CSRC_R4K 597 select SYS_HAS_CPU_R4300 598 select SYS_SUPPORTS_BIG_ENDIAN 599 select SYS_SUPPORTS_ZBOOT 600 select SYS_SUPPORTS_32BIT_KERNEL 601 select SYS_SUPPORTS_64BIT_KERNEL 602 select DMA_NONCOHERENT 603 select IRQ_MIPS_CPU 604 605config RALINK 606 bool "Ralink based machines" 607 select CEVT_R4K 608 select COMMON_CLK 609 select CSRC_R4K 610 select BOOT_RAW 611 select DMA_NONCOHERENT 612 select IRQ_MIPS_CPU 613 select USE_OF 614 select SYS_HAS_CPU_MIPS32_R1 615 select SYS_HAS_CPU_MIPS32_R2 616 select SYS_SUPPORTS_32BIT_KERNEL 617 select SYS_SUPPORTS_LITTLE_ENDIAN 618 select SYS_SUPPORTS_MIPS16 619 select SYS_SUPPORTS_ZBOOT 620 select SYS_HAS_EARLY_PRINTK 621 select ARCH_HAS_RESET_CONTROLLER 622 select RESET_CONTROLLER 623 624config MACH_REALTEK_RTL 625 bool "Realtek RTL838x/RTL839x based machines" 626 select MIPS_GENERIC 627 select DMA_NONCOHERENT 628 select IRQ_MIPS_CPU 629 select CSRC_R4K 630 select CEVT_R4K 631 select SYS_HAS_CPU_MIPS32_R1 632 select SYS_HAS_CPU_MIPS32_R2 633 select SYS_SUPPORTS_BIG_ENDIAN 634 select SYS_SUPPORTS_32BIT_KERNEL 635 select SYS_SUPPORTS_MIPS16 636 select SYS_SUPPORTS_MULTITHREADING 637 select SYS_SUPPORTS_VPE_LOADER 638 select SYS_HAS_EARLY_PRINTK 639 select SYS_HAS_EARLY_PRINTK_8250 640 select USE_GENERIC_EARLY_PRINTK_8250 641 select BOOT_RAW 642 select PINCTRL 643 select USE_OF 644 645config SGI_IP22 646 bool "SGI IP22 (Indy/Indigo2)" 647 select ARC_MEMORY 648 select ARC_PROMLIB 649 select FW_ARC 650 select FW_ARC32 651 select ARCH_MIGHT_HAVE_PC_SERIO 652 select BOOT_ELF32 653 select CEVT_R4K 654 select CSRC_R4K 655 select DEFAULT_SGI_PARTITION 656 select DMA_NONCOHERENT 657 select HAVE_EISA 658 select I8253 659 select I8259 660 select IP22_CPU_SCACHE 661 select IRQ_MIPS_CPU 662 select GENERIC_ISA_DMA_SUPPORT_BROKEN 663 select SGI_HAS_I8042 664 select SGI_HAS_INDYDOG 665 select SGI_HAS_HAL2 666 select SGI_HAS_SEEQ 667 select SGI_HAS_WD93 668 select SGI_HAS_ZILOG 669 select SWAP_IO_SPACE 670 select SYS_HAS_CPU_R4X00 671 select SYS_HAS_CPU_R5000 672 select SYS_HAS_EARLY_PRINTK 673 select SYS_SUPPORTS_32BIT_KERNEL 674 select SYS_SUPPORTS_64BIT_KERNEL 675 select SYS_SUPPORTS_BIG_ENDIAN 676 select WAR_R4600_V1_INDEX_ICACHEOP 677 select WAR_R4600_V1_HIT_CACHEOP 678 select WAR_R4600_V2_HIT_CACHEOP 679 select MIPS_L1_CACHE_SHIFT_7 680 help 681 This are the SGI Indy, Challenge S and Indigo2, as well as certain 682 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 683 that runs on these, say Y here. 684 685config SGI_IP27 686 bool "SGI IP27 (Origin200/2000)" 687 select ARCH_HAS_PHYS_TO_DMA 688 select ARCH_SPARSEMEM_ENABLE 689 select FW_ARC 690 select FW_ARC64 691 select ARC_CMDLINE_ONLY 692 select BOOT_ELF64 693 select DEFAULT_SGI_PARTITION 694 select FORCE_PCI 695 select SYS_HAS_EARLY_PRINTK 696 select HAVE_PCI 697 select IRQ_MIPS_CPU 698 select IRQ_DOMAIN_HIERARCHY 699 select NR_CPUS_DEFAULT_64 700 select PCI_DRIVERS_GENERIC 701 select PCI_XTALK_BRIDGE 702 select SYS_HAS_CPU_R10000 703 select SYS_SUPPORTS_64BIT_KERNEL 704 select SYS_SUPPORTS_BIG_ENDIAN 705 select SYS_SUPPORTS_NUMA 706 select SYS_SUPPORTS_SMP 707 select WAR_R10000_LLSC 708 select MIPS_L1_CACHE_SHIFT_7 709 select NUMA 710 help 711 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 712 workstations. To compile a Linux kernel that runs on these, say Y 713 here. 714 715config SGI_IP28 716 bool "SGI IP28 (Indigo2 R10k)" 717 select ARC_MEMORY 718 select ARC_PROMLIB 719 select FW_ARC 720 select FW_ARC64 721 select ARCH_MIGHT_HAVE_PC_SERIO 722 select BOOT_ELF64 723 select CEVT_R4K 724 select CSRC_R4K 725 select DEFAULT_SGI_PARTITION 726 select DMA_NONCOHERENT 727 select GENERIC_ISA_DMA_SUPPORT_BROKEN 728 select IRQ_MIPS_CPU 729 select HAVE_EISA 730 select I8253 731 select I8259 732 select SGI_HAS_I8042 733 select SGI_HAS_INDYDOG 734 select SGI_HAS_HAL2 735 select SGI_HAS_SEEQ 736 select SGI_HAS_WD93 737 select SGI_HAS_ZILOG 738 select SWAP_IO_SPACE 739 select SYS_HAS_CPU_R10000 740 select SYS_HAS_EARLY_PRINTK 741 select SYS_SUPPORTS_64BIT_KERNEL 742 select SYS_SUPPORTS_BIG_ENDIAN 743 select WAR_R10000_LLSC 744 select MIPS_L1_CACHE_SHIFT_7 745 help 746 This is the SGI Indigo2 with R10000 processor. To compile a Linux 747 kernel that runs on these, say Y here. 748 749config SGI_IP30 750 bool "SGI IP30 (Octane/Octane2)" 751 select ARCH_HAS_PHYS_TO_DMA 752 select FW_ARC 753 select FW_ARC64 754 select BOOT_ELF64 755 select CEVT_R4K 756 select CSRC_R4K 757 select FORCE_PCI 758 select SYNC_R4K if SMP 759 select ZONE_DMA32 760 select HAVE_PCI 761 select IRQ_MIPS_CPU 762 select IRQ_DOMAIN_HIERARCHY 763 select NR_CPUS_DEFAULT_2 764 select PCI_DRIVERS_GENERIC 765 select PCI_XTALK_BRIDGE 766 select SYS_HAS_EARLY_PRINTK 767 select SYS_HAS_CPU_R10000 768 select SYS_SUPPORTS_64BIT_KERNEL 769 select SYS_SUPPORTS_BIG_ENDIAN 770 select SYS_SUPPORTS_SMP 771 select WAR_R10000_LLSC 772 select MIPS_L1_CACHE_SHIFT_7 773 select ARC_MEMORY 774 help 775 These are the SGI Octane and Octane2 graphics workstations. To 776 compile a Linux kernel that runs on these, say Y here. 777 778config SGI_IP32 779 bool "SGI IP32 (O2)" 780 select ARC_MEMORY 781 select ARC_PROMLIB 782 select ARCH_HAS_PHYS_TO_DMA 783 select FW_ARC 784 select FW_ARC32 785 select BOOT_ELF32 786 select CEVT_R4K 787 select CSRC_R4K 788 select DMA_NONCOHERENT 789 select HAVE_PCI 790 select IRQ_MIPS_CPU 791 select R5000_CPU_SCACHE 792 select RM7000_CPU_SCACHE 793 select SYS_HAS_CPU_R5000 794 select SYS_HAS_CPU_R10000 if BROKEN 795 select SYS_HAS_CPU_RM7000 796 select SYS_HAS_CPU_NEVADA 797 select SYS_SUPPORTS_64BIT_KERNEL 798 select SYS_SUPPORTS_BIG_ENDIAN 799 select WAR_ICACHE_REFILLS 800 help 801 If you want this kernel to run on SGI O2 workstation, say Y here. 802 803config SIBYTE_CRHINE 804 bool "Sibyte BCM91120C-CRhine" 805 select BOOT_ELF32 806 select SIBYTE_BCM1120 807 select SWAP_IO_SPACE 808 select SYS_HAS_CPU_SB1 809 select SYS_SUPPORTS_BIG_ENDIAN 810 select SYS_SUPPORTS_LITTLE_ENDIAN 811 812config SIBYTE_CARMEL 813 bool "Sibyte BCM91120x-Carmel" 814 select BOOT_ELF32 815 select SIBYTE_BCM1120 816 select SWAP_IO_SPACE 817 select SYS_HAS_CPU_SB1 818 select SYS_SUPPORTS_BIG_ENDIAN 819 select SYS_SUPPORTS_LITTLE_ENDIAN 820 821config SIBYTE_CRHONE 822 bool "Sibyte BCM91125C-CRhone" 823 select BOOT_ELF32 824 select SIBYTE_BCM1125 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 831config SIBYTE_RHONE 832 bool "Sibyte BCM91125E-Rhone" 833 select BOOT_ELF32 834 select SIBYTE_BCM1125H 835 select SWAP_IO_SPACE 836 select SYS_HAS_CPU_SB1 837 select SYS_SUPPORTS_BIG_ENDIAN 838 select SYS_SUPPORTS_LITTLE_ENDIAN 839 840config SIBYTE_SWARM 841 bool "Sibyte BCM91250A-SWARM" 842 select BOOT_ELF32 843 select HAVE_PATA_PLATFORM 844 select SIBYTE_SB1250 845 select SWAP_IO_SPACE 846 select SYS_HAS_CPU_SB1 847 select SYS_SUPPORTS_BIG_ENDIAN 848 select SYS_SUPPORTS_HIGHMEM 849 select SYS_SUPPORTS_LITTLE_ENDIAN 850 select ZONE_DMA32 if 64BIT 851 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 852 853config SIBYTE_LITTLESUR 854 bool "Sibyte BCM91250C2-LittleSur" 855 select BOOT_ELF32 856 select HAVE_PATA_PLATFORM 857 select SIBYTE_SB1250 858 select SWAP_IO_SPACE 859 select SYS_HAS_CPU_SB1 860 select SYS_SUPPORTS_BIG_ENDIAN 861 select SYS_SUPPORTS_HIGHMEM 862 select SYS_SUPPORTS_LITTLE_ENDIAN 863 select ZONE_DMA32 if 64BIT 864 865config SIBYTE_SENTOSA 866 bool "Sibyte BCM91250E-Sentosa" 867 select BOOT_ELF32 868 select SIBYTE_SB1250 869 select SWAP_IO_SPACE 870 select SYS_HAS_CPU_SB1 871 select SYS_SUPPORTS_BIG_ENDIAN 872 select SYS_SUPPORTS_LITTLE_ENDIAN 873 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 874 875config SIBYTE_BIGSUR 876 bool "Sibyte BCM91480B-BigSur" 877 select BOOT_ELF32 878 select NR_CPUS_DEFAULT_4 879 select SIBYTE_BCM1x80 880 select SWAP_IO_SPACE 881 select SYS_HAS_CPU_SB1 882 select SYS_SUPPORTS_BIG_ENDIAN 883 select SYS_SUPPORTS_HIGHMEM 884 select SYS_SUPPORTS_LITTLE_ENDIAN 885 select ZONE_DMA32 if 64BIT 886 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 887 888config SNI_RM 889 bool "SNI RM200/300/400" 890 select ARC_MEMORY 891 select ARC_PROMLIB 892 select FW_ARC if CPU_LITTLE_ENDIAN 893 select FW_ARC32 if CPU_LITTLE_ENDIAN 894 select FW_SNIPROM if CPU_BIG_ENDIAN 895 select ARCH_MAY_HAVE_PC_FDC 896 select ARCH_MIGHT_HAVE_PC_PARPORT 897 select ARCH_MIGHT_HAVE_PC_SERIO 898 select BOOT_ELF32 899 select CEVT_R4K 900 select CSRC_R4K 901 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 902 select DMA_NONCOHERENT 903 select GENERIC_ISA_DMA 904 select HAVE_EISA 905 select HAVE_PCSPKR_PLATFORM 906 select HAVE_PCI 907 select IRQ_MIPS_CPU 908 select I8253 909 select I8259 910 select ISA 911 select MIPS_L1_CACHE_SHIFT_6 912 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 913 select SYS_HAS_CPU_R4X00 914 select SYS_HAS_CPU_R5000 915 select SYS_HAS_CPU_R10000 916 select R5000_CPU_SCACHE 917 select SYS_HAS_EARLY_PRINTK 918 select SYS_SUPPORTS_32BIT_KERNEL 919 select SYS_SUPPORTS_64BIT_KERNEL 920 select SYS_SUPPORTS_BIG_ENDIAN 921 select SYS_SUPPORTS_HIGHMEM 922 select SYS_SUPPORTS_LITTLE_ENDIAN 923 select WAR_R4600_V2_HIT_CACHEOP 924 help 925 The SNI RM200/300/400 are MIPS-based machines manufactured by 926 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 927 Technology and now in turn merged with Fujitsu. Say Y here to 928 support this machine type. 929 930config MACH_TX39XX 931 bool "Toshiba TX39 series based machines" 932 933config MACH_TX49XX 934 bool "Toshiba TX49 series based machines" 935 select WAR_TX49XX_ICACHE_INDEX_INV 936 937config MIKROTIK_RB532 938 bool "Mikrotik RB532 boards" 939 select CEVT_R4K 940 select CSRC_R4K 941 select DMA_NONCOHERENT 942 select HAVE_PCI 943 select IRQ_MIPS_CPU 944 select SYS_HAS_CPU_MIPS32_R1 945 select SYS_SUPPORTS_32BIT_KERNEL 946 select SYS_SUPPORTS_LITTLE_ENDIAN 947 select SWAP_IO_SPACE 948 select BOOT_RAW 949 select GPIOLIB 950 select MIPS_L1_CACHE_SHIFT_4 951 help 952 Support the Mikrotik(tm) RouterBoard 532 series, 953 based on the IDT RC32434 SoC. 954 955config CAVIUM_OCTEON_SOC 956 bool "Cavium Networks Octeon SoC based boards" 957 select CEVT_R4K 958 select ARCH_HAS_PHYS_TO_DMA 959 select HAVE_RAPIDIO 960 select PHYS_ADDR_T_64BIT 961 select SYS_SUPPORTS_64BIT_KERNEL 962 select SYS_SUPPORTS_BIG_ENDIAN 963 select EDAC_SUPPORT 964 select EDAC_ATOMIC_SCRUB 965 select SYS_SUPPORTS_LITTLE_ENDIAN 966 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 967 select SYS_HAS_EARLY_PRINTK 968 select SYS_HAS_CPU_CAVIUM_OCTEON 969 select HAVE_PCI 970 select HAVE_PLAT_DELAY 971 select HAVE_PLAT_FW_INIT_CMDLINE 972 select HAVE_PLAT_MEMCPY 973 select ZONE_DMA32 974 select GPIOLIB 975 select USE_OF 976 select ARCH_SPARSEMEM_ENABLE 977 select SYS_SUPPORTS_SMP 978 select NR_CPUS_DEFAULT_64 979 select MIPS_NR_CPU_NR_MAP_1024 980 select BUILTIN_DTB 981 select MTD 982 select MTD_COMPLEX_MAPPINGS 983 select SWIOTLB 984 select SYS_SUPPORTS_RELOCATABLE 985 help 986 This option supports all of the Octeon reference boards from Cavium 987 Networks. It builds a kernel that dynamically determines the Octeon 988 CPU type and supports all known board reference implementations. 989 Some of the supported boards are: 990 EBT3000 991 EBH3000 992 EBH3100 993 Thunder 994 Kodama 995 Hikari 996 Say Y here for most Octeon reference boards. 997 998endchoice 999 1000source "arch/mips/alchemy/Kconfig" 1001source "arch/mips/ath25/Kconfig" 1002source "arch/mips/ath79/Kconfig" 1003source "arch/mips/bcm47xx/Kconfig" 1004source "arch/mips/bcm63xx/Kconfig" 1005source "arch/mips/bmips/Kconfig" 1006source "arch/mips/generic/Kconfig" 1007source "arch/mips/ingenic/Kconfig" 1008source "arch/mips/jazz/Kconfig" 1009source "arch/mips/lantiq/Kconfig" 1010source "arch/mips/pic32/Kconfig" 1011source "arch/mips/ralink/Kconfig" 1012source "arch/mips/sgi-ip27/Kconfig" 1013source "arch/mips/sibyte/Kconfig" 1014source "arch/mips/txx9/Kconfig" 1015source "arch/mips/vr41xx/Kconfig" 1016source "arch/mips/cavium-octeon/Kconfig" 1017source "arch/mips/loongson2ef/Kconfig" 1018source "arch/mips/loongson32/Kconfig" 1019source "arch/mips/loongson64/Kconfig" 1020 1021endmenu 1022 1023config GENERIC_HWEIGHT 1024 bool 1025 default y 1026 1027config GENERIC_CALIBRATE_DELAY 1028 bool 1029 default y 1030 1031config SCHED_OMIT_FRAME_POINTER 1032 bool 1033 default y 1034 1035# 1036# Select some configuration options automatically based on user selections. 1037# 1038config FW_ARC 1039 bool 1040 1041config ARCH_MAY_HAVE_PC_FDC 1042 bool 1043 1044config BOOT_RAW 1045 bool 1046 1047config CEVT_BCM1480 1048 bool 1049 1050config CEVT_DS1287 1051 bool 1052 1053config CEVT_GT641XX 1054 bool 1055 1056config CEVT_R4K 1057 bool 1058 1059config CEVT_SB1250 1060 bool 1061 1062config CEVT_TXX9 1063 bool 1064 1065config CSRC_BCM1480 1066 bool 1067 1068config CSRC_IOASIC 1069 bool 1070 1071config CSRC_R4K 1072 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1073 bool 1074 1075config CSRC_SB1250 1076 bool 1077 1078config MIPS_CLOCK_VSYSCALL 1079 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1080 1081config GPIO_TXX9 1082 select GPIOLIB 1083 bool 1084 1085config FW_CFE 1086 bool 1087 1088config ARCH_SUPPORTS_UPROBES 1089 bool 1090 1091config DMA_PERDEV_COHERENT 1092 bool 1093 select ARCH_HAS_SETUP_DMA_OPS 1094 select DMA_NONCOHERENT 1095 1096config DMA_NONCOHERENT 1097 bool 1098 # 1099 # MIPS allows mixing "slightly different" Cacheability and Coherency 1100 # Attribute bits. It is believed that the uncached access through 1101 # KSEG1 and the implementation specific "uncached accelerated" used 1102 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1103 # significant advantages. 1104 # 1105 select ARCH_HAS_DMA_WRITE_COMBINE 1106 select ARCH_HAS_DMA_PREP_COHERENT 1107 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1108 select ARCH_HAS_DMA_SET_UNCACHED 1109 select DMA_NONCOHERENT_MMAP 1110 select NEED_DMA_MAP_STATE 1111 1112config SYS_HAS_EARLY_PRINTK 1113 bool 1114 1115config SYS_SUPPORTS_HOTPLUG_CPU 1116 bool 1117 1118config MIPS_BONITO64 1119 bool 1120 1121config MIPS_MSC 1122 bool 1123 1124config SYNC_R4K 1125 bool 1126 1127config NO_IOPORT_MAP 1128 def_bool n 1129 1130config GENERIC_CSUM 1131 def_bool CPU_NO_LOAD_STORE_LR 1132 1133config GENERIC_ISA_DMA 1134 bool 1135 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1136 select ISA_DMA_API 1137 1138config GENERIC_ISA_DMA_SUPPORT_BROKEN 1139 bool 1140 select GENERIC_ISA_DMA 1141 1142config HAVE_PLAT_DELAY 1143 bool 1144 1145config HAVE_PLAT_FW_INIT_CMDLINE 1146 bool 1147 1148config HAVE_PLAT_MEMCPY 1149 bool 1150 1151config ISA_DMA_API 1152 bool 1153 1154config SYS_SUPPORTS_RELOCATABLE 1155 bool 1156 help 1157 Selected if the platform supports relocating the kernel. 1158 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1159 to allow access to command line and entropy sources. 1160 1161# 1162# Endianness selection. Sufficiently obscure so many users don't know what to 1163# answer,so we try hard to limit the available choices. Also the use of a 1164# choice statement should be more obvious to the user. 1165# 1166choice 1167 prompt "Endianness selection" 1168 help 1169 Some MIPS machines can be configured for either little or big endian 1170 byte order. These modes require different kernels and a different 1171 Linux distribution. In general there is one preferred byteorder for a 1172 particular system but some systems are just as commonly used in the 1173 one or the other endianness. 1174 1175config CPU_BIG_ENDIAN 1176 bool "Big endian" 1177 depends on SYS_SUPPORTS_BIG_ENDIAN 1178 1179config CPU_LITTLE_ENDIAN 1180 bool "Little endian" 1181 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1182 1183endchoice 1184 1185config EXPORT_UASM 1186 bool 1187 1188config SYS_SUPPORTS_APM_EMULATION 1189 bool 1190 1191config SYS_SUPPORTS_BIG_ENDIAN 1192 bool 1193 1194config SYS_SUPPORTS_LITTLE_ENDIAN 1195 bool 1196 1197config MIPS_HUGE_TLB_SUPPORT 1198 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1199 1200config IRQ_MSP_SLP 1201 bool 1202 1203config IRQ_MSP_CIC 1204 bool 1205 1206config IRQ_TXX9 1207 bool 1208 1209config IRQ_GT641XX 1210 bool 1211 1212config PCI_GT64XXX_PCI0 1213 bool 1214 1215config PCI_XTALK_BRIDGE 1216 bool 1217 1218config NO_EXCEPT_FILL 1219 bool 1220 1221config MIPS_SPRAM 1222 bool 1223 1224config SWAP_IO_SPACE 1225 bool 1226 1227config SGI_HAS_INDYDOG 1228 bool 1229 1230config SGI_HAS_HAL2 1231 bool 1232 1233config SGI_HAS_SEEQ 1234 bool 1235 1236config SGI_HAS_WD93 1237 bool 1238 1239config SGI_HAS_ZILOG 1240 bool 1241 1242config SGI_HAS_I8042 1243 bool 1244 1245config DEFAULT_SGI_PARTITION 1246 bool 1247 1248config FW_ARC32 1249 bool 1250 1251config FW_SNIPROM 1252 bool 1253 1254config BOOT_ELF32 1255 bool 1256 1257config MIPS_L1_CACHE_SHIFT_4 1258 bool 1259 1260config MIPS_L1_CACHE_SHIFT_5 1261 bool 1262 1263config MIPS_L1_CACHE_SHIFT_6 1264 bool 1265 1266config MIPS_L1_CACHE_SHIFT_7 1267 bool 1268 1269config MIPS_L1_CACHE_SHIFT 1270 int 1271 default "7" if MIPS_L1_CACHE_SHIFT_7 1272 default "6" if MIPS_L1_CACHE_SHIFT_6 1273 default "5" if MIPS_L1_CACHE_SHIFT_5 1274 default "4" if MIPS_L1_CACHE_SHIFT_4 1275 default "5" 1276 1277config ARC_CMDLINE_ONLY 1278 bool 1279 1280config ARC_CONSOLE 1281 bool "ARC console support" 1282 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1283 1284config ARC_MEMORY 1285 bool 1286 1287config ARC_PROMLIB 1288 bool 1289 1290config FW_ARC64 1291 bool 1292 1293config BOOT_ELF64 1294 bool 1295 1296menu "CPU selection" 1297 1298choice 1299 prompt "CPU type" 1300 default CPU_R4X00 1301 1302config CPU_LOONGSON64 1303 bool "Loongson 64-bit CPU" 1304 depends on SYS_HAS_CPU_LOONGSON64 1305 select ARCH_HAS_PHYS_TO_DMA 1306 select CPU_MIPSR2 1307 select CPU_HAS_PREFETCH 1308 select CPU_SUPPORTS_64BIT_KERNEL 1309 select CPU_SUPPORTS_HIGHMEM 1310 select CPU_SUPPORTS_HUGEPAGES 1311 select CPU_SUPPORTS_MSA 1312 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1313 select CPU_MIPSR2_IRQ_VI 1314 select WEAK_ORDERING 1315 select WEAK_REORDERING_BEYOND_LLSC 1316 select MIPS_ASID_BITS_VARIABLE 1317 select MIPS_PGD_C0_CONTEXT 1318 select MIPS_L1_CACHE_SHIFT_6 1319 select MIPS_FP_SUPPORT 1320 select GPIOLIB 1321 select SWIOTLB 1322 select HAVE_KVM 1323 help 1324 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1325 cores implements the MIPS64R2 instruction set with many extensions, 1326 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1327 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1328 Loongson-2E/2F is not covered here and will be removed in future. 1329 1330config LOONGSON3_ENHANCEMENT 1331 bool "New Loongson-3 CPU Enhancements" 1332 default n 1333 depends on CPU_LOONGSON64 1334 help 1335 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1336 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1337 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1338 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1339 Fast TLB refill support, etc. 1340 1341 This option enable those enhancements which are not probed at run 1342 time. If you want a generic kernel to run on all Loongson 3 machines, 1343 please say 'N' here. If you want a high-performance kernel to run on 1344 new Loongson-3 machines only, please say 'Y' here. 1345 1346config CPU_LOONGSON3_WORKAROUNDS 1347 bool "Old Loongson-3 LLSC Workarounds" 1348 default y if SMP 1349 depends on CPU_LOONGSON64 1350 help 1351 Loongson-3 processors have the llsc issues which require workarounds. 1352 Without workarounds the system may hang unexpectedly. 1353 1354 Newer Loongson-3 will fix these issues and no workarounds are needed. 1355 The workarounds have no significant side effect on them but may 1356 decrease the performance of the system so this option should be 1357 disabled unless the kernel is intended to be run on old systems. 1358 1359 If unsure, please say Y. 1360 1361config CPU_LOONGSON3_CPUCFG_EMULATION 1362 bool "Emulate the CPUCFG instruction on older Loongson cores" 1363 default y 1364 depends on CPU_LOONGSON64 1365 help 1366 Loongson-3A R4 and newer have the CPUCFG instruction available for 1367 userland to query CPU capabilities, much like CPUID on x86. This 1368 option provides emulation of the instruction on older Loongson 1369 cores, back to Loongson-3A1000. 1370 1371 If unsure, please say Y. 1372 1373config CPU_LOONGSON2E 1374 bool "Loongson 2E" 1375 depends on SYS_HAS_CPU_LOONGSON2E 1376 select CPU_LOONGSON2EF 1377 help 1378 The Loongson 2E processor implements the MIPS III instruction set 1379 with many extensions. 1380 1381 It has an internal FPGA northbridge, which is compatible to 1382 bonito64. 1383 1384config CPU_LOONGSON2F 1385 bool "Loongson 2F" 1386 depends on SYS_HAS_CPU_LOONGSON2F 1387 select CPU_LOONGSON2EF 1388 select GPIOLIB 1389 help 1390 The Loongson 2F processor implements the MIPS III instruction set 1391 with many extensions. 1392 1393 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1394 have a similar programming interface with FPGA northbridge used in 1395 Loongson2E. 1396 1397config CPU_LOONGSON1B 1398 bool "Loongson 1B" 1399 depends on SYS_HAS_CPU_LOONGSON1B 1400 select CPU_LOONGSON32 1401 select LEDS_GPIO_REGISTER 1402 help 1403 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1404 Release 1 instruction set and part of the MIPS32 Release 2 1405 instruction set. 1406 1407config CPU_LOONGSON1C 1408 bool "Loongson 1C" 1409 depends on SYS_HAS_CPU_LOONGSON1C 1410 select CPU_LOONGSON32 1411 select LEDS_GPIO_REGISTER 1412 help 1413 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1414 Release 1 instruction set and part of the MIPS32 Release 2 1415 instruction set. 1416 1417config CPU_MIPS32_R1 1418 bool "MIPS32 Release 1" 1419 depends on SYS_HAS_CPU_MIPS32_R1 1420 select CPU_HAS_PREFETCH 1421 select CPU_SUPPORTS_32BIT_KERNEL 1422 select CPU_SUPPORTS_HIGHMEM 1423 help 1424 Choose this option to build a kernel for release 1 or later of the 1425 MIPS32 architecture. Most modern embedded systems with a 32-bit 1426 MIPS processor are based on a MIPS32 processor. If you know the 1427 specific type of processor in your system, choose those that one 1428 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1429 Release 2 of the MIPS32 architecture is available since several 1430 years so chances are you even have a MIPS32 Release 2 processor 1431 in which case you should choose CPU_MIPS32_R2 instead for better 1432 performance. 1433 1434config CPU_MIPS32_R2 1435 bool "MIPS32 Release 2" 1436 depends on SYS_HAS_CPU_MIPS32_R2 1437 select CPU_HAS_PREFETCH 1438 select CPU_SUPPORTS_32BIT_KERNEL 1439 select CPU_SUPPORTS_HIGHMEM 1440 select CPU_SUPPORTS_MSA 1441 select HAVE_KVM 1442 help 1443 Choose this option to build a kernel for release 2 or later of the 1444 MIPS32 architecture. Most modern embedded systems with a 32-bit 1445 MIPS processor are based on a MIPS32 processor. If you know the 1446 specific type of processor in your system, choose those that one 1447 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1448 1449config CPU_MIPS32_R5 1450 bool "MIPS32 Release 5" 1451 depends on SYS_HAS_CPU_MIPS32_R5 1452 select CPU_HAS_PREFETCH 1453 select CPU_SUPPORTS_32BIT_KERNEL 1454 select CPU_SUPPORTS_HIGHMEM 1455 select CPU_SUPPORTS_MSA 1456 select HAVE_KVM 1457 select MIPS_O32_FP64_SUPPORT 1458 help 1459 Choose this option to build a kernel for release 5 or later of the 1460 MIPS32 architecture. New MIPS processors, starting with the Warrior 1461 family, are based on a MIPS32r5 processor. If you own an older 1462 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1463 1464config CPU_MIPS32_R6 1465 bool "MIPS32 Release 6" 1466 depends on SYS_HAS_CPU_MIPS32_R6 1467 select CPU_HAS_PREFETCH 1468 select CPU_NO_LOAD_STORE_LR 1469 select CPU_SUPPORTS_32BIT_KERNEL 1470 select CPU_SUPPORTS_HIGHMEM 1471 select CPU_SUPPORTS_MSA 1472 select HAVE_KVM 1473 select MIPS_O32_FP64_SUPPORT 1474 help 1475 Choose this option to build a kernel for release 6 or later of the 1476 MIPS32 architecture. New MIPS processors, starting with the Warrior 1477 family, are based on a MIPS32r6 processor. If you own an older 1478 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1479 1480config CPU_MIPS64_R1 1481 bool "MIPS64 Release 1" 1482 depends on SYS_HAS_CPU_MIPS64_R1 1483 select CPU_HAS_PREFETCH 1484 select CPU_SUPPORTS_32BIT_KERNEL 1485 select CPU_SUPPORTS_64BIT_KERNEL 1486 select CPU_SUPPORTS_HIGHMEM 1487 select CPU_SUPPORTS_HUGEPAGES 1488 help 1489 Choose this option to build a kernel for release 1 or later of the 1490 MIPS64 architecture. Many modern embedded systems with a 64-bit 1491 MIPS processor are based on a MIPS64 processor. If you know the 1492 specific type of processor in your system, choose those that one 1493 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1494 Release 2 of the MIPS64 architecture is available since several 1495 years so chances are you even have a MIPS64 Release 2 processor 1496 in which case you should choose CPU_MIPS64_R2 instead for better 1497 performance. 1498 1499config CPU_MIPS64_R2 1500 bool "MIPS64 Release 2" 1501 depends on SYS_HAS_CPU_MIPS64_R2 1502 select CPU_HAS_PREFETCH 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_64BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 select CPU_SUPPORTS_HUGEPAGES 1507 select CPU_SUPPORTS_MSA 1508 select HAVE_KVM 1509 help 1510 Choose this option to build a kernel for release 2 or later of the 1511 MIPS64 architecture. Many modern embedded systems with a 64-bit 1512 MIPS processor are based on a MIPS64 processor. If you know the 1513 specific type of processor in your system, choose those that one 1514 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1515 1516config CPU_MIPS64_R5 1517 bool "MIPS64 Release 5" 1518 depends on SYS_HAS_CPU_MIPS64_R5 1519 select CPU_HAS_PREFETCH 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 MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1526 select HAVE_KVM 1527 help 1528 Choose this option to build a kernel for release 5 or later of the 1529 MIPS64 architecture. This is a intermediate MIPS architecture 1530 release partly implementing release 6 features. Though there is no 1531 any hardware known to be based on this release. 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_NO_LOAD_STORE_LR 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 select CPU_SUPPORTS_HIGHMEM 1541 select CPU_SUPPORTS_HUGEPAGES 1542 select CPU_SUPPORTS_MSA 1543 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1544 select HAVE_KVM 1545 help 1546 Choose this option to build a kernel for release 6 or later of the 1547 MIPS64 architecture. New MIPS processors, starting with the Warrior 1548 family, are based on a MIPS64r6 processor. If you own an older 1549 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1550 1551config CPU_P5600 1552 bool "MIPS Warrior P5600" 1553 depends on SYS_HAS_CPU_P5600 1554 select CPU_HAS_PREFETCH 1555 select CPU_SUPPORTS_32BIT_KERNEL 1556 select CPU_SUPPORTS_HIGHMEM 1557 select CPU_SUPPORTS_MSA 1558 select CPU_SUPPORTS_CPUFREQ 1559 select CPU_MIPSR2_IRQ_VI 1560 select CPU_MIPSR2_IRQ_EI 1561 select HAVE_KVM 1562 select MIPS_O32_FP64_SUPPORT 1563 help 1564 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1565 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1566 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1567 level features like up to six P5600 calculation cores, CM2 with L2 1568 cache, IOCU/IOMMU (though might be unused depending on the system- 1569 specific IP core configuration), GIC, CPC, virtualisation module, 1570 eJTAG and PDtrace. 1571 1572config CPU_R3000 1573 bool "R3000" 1574 depends on SYS_HAS_CPU_R3000 1575 select CPU_HAS_WB 1576 select CPU_R3K_TLB 1577 select CPU_SUPPORTS_32BIT_KERNEL 1578 select CPU_SUPPORTS_HIGHMEM 1579 help 1580 Please make sure to pick the right CPU type. Linux/MIPS is not 1581 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1582 *not* work on R4000 machines and vice versa. However, since most 1583 of the supported machines have an R4000 (or similar) CPU, R4x00 1584 might be a safe bet. If the resulting kernel does not work, 1585 try to recompile with R3000. 1586 1587config CPU_TX39XX 1588 bool "R39XX" 1589 depends on SYS_HAS_CPU_TX39XX 1590 select CPU_SUPPORTS_32BIT_KERNEL 1591 select CPU_R3K_TLB 1592 1593config CPU_VR41XX 1594 bool "R41xx" 1595 depends on SYS_HAS_CPU_VR41XX 1596 select CPU_SUPPORTS_32BIT_KERNEL 1597 select CPU_SUPPORTS_64BIT_KERNEL 1598 help 1599 The options selects support for the NEC VR4100 series of processors. 1600 Only choose this option if you have one of these processors as a 1601 kernel built with this option will not run on any other type of 1602 processor or vice versa. 1603 1604config CPU_R4300 1605 bool "R4300" 1606 depends on SYS_HAS_CPU_R4300 1607 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_HAS_LOAD_STORE_LR 1610 help 1611 MIPS Technologies R4300-series processors. 1612 1613config CPU_R4X00 1614 bool "R4x00" 1615 depends on SYS_HAS_CPU_R4X00 1616 select CPU_SUPPORTS_32BIT_KERNEL 1617 select CPU_SUPPORTS_64BIT_KERNEL 1618 select CPU_SUPPORTS_HUGEPAGES 1619 help 1620 MIPS Technologies R4000-series processors other than 4300, including 1621 the R4000, R4400, R4600, and 4700. 1622 1623config CPU_TX49XX 1624 bool "R49XX" 1625 depends on SYS_HAS_CPU_TX49XX 1626 select CPU_HAS_PREFETCH 1627 select CPU_SUPPORTS_32BIT_KERNEL 1628 select CPU_SUPPORTS_64BIT_KERNEL 1629 select CPU_SUPPORTS_HUGEPAGES 1630 1631config CPU_R5000 1632 bool "R5000" 1633 depends on SYS_HAS_CPU_R5000 1634 select CPU_SUPPORTS_32BIT_KERNEL 1635 select CPU_SUPPORTS_64BIT_KERNEL 1636 select CPU_SUPPORTS_HUGEPAGES 1637 help 1638 MIPS Technologies R5000-series processors other than the Nevada. 1639 1640config CPU_R5500 1641 bool "R5500" 1642 depends on SYS_HAS_CPU_R5500 1643 select CPU_SUPPORTS_32BIT_KERNEL 1644 select CPU_SUPPORTS_64BIT_KERNEL 1645 select CPU_SUPPORTS_HUGEPAGES 1646 help 1647 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1648 instruction set. 1649 1650config CPU_NEVADA 1651 bool "RM52xx" 1652 depends on SYS_HAS_CPU_NEVADA 1653 select CPU_SUPPORTS_32BIT_KERNEL 1654 select CPU_SUPPORTS_64BIT_KERNEL 1655 select CPU_SUPPORTS_HUGEPAGES 1656 help 1657 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1658 1659config CPU_R10000 1660 bool "R10000" 1661 depends on SYS_HAS_CPU_R10000 1662 select CPU_HAS_PREFETCH 1663 select CPU_SUPPORTS_32BIT_KERNEL 1664 select CPU_SUPPORTS_64BIT_KERNEL 1665 select CPU_SUPPORTS_HIGHMEM 1666 select CPU_SUPPORTS_HUGEPAGES 1667 help 1668 MIPS Technologies R10000-series processors. 1669 1670config CPU_RM7000 1671 bool "RM7000" 1672 depends on SYS_HAS_CPU_RM7000 1673 select CPU_HAS_PREFETCH 1674 select CPU_SUPPORTS_32BIT_KERNEL 1675 select CPU_SUPPORTS_64BIT_KERNEL 1676 select CPU_SUPPORTS_HIGHMEM 1677 select CPU_SUPPORTS_HUGEPAGES 1678 1679config CPU_SB1 1680 bool "SB1" 1681 depends on SYS_HAS_CPU_SB1 1682 select CPU_SUPPORTS_32BIT_KERNEL 1683 select CPU_SUPPORTS_64BIT_KERNEL 1684 select CPU_SUPPORTS_HIGHMEM 1685 select CPU_SUPPORTS_HUGEPAGES 1686 select WEAK_ORDERING 1687 1688config CPU_CAVIUM_OCTEON 1689 bool "Cavium Octeon processor" 1690 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1691 select CPU_HAS_PREFETCH 1692 select CPU_SUPPORTS_64BIT_KERNEL 1693 select WEAK_ORDERING 1694 select CPU_SUPPORTS_HIGHMEM 1695 select CPU_SUPPORTS_HUGEPAGES 1696 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1697 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1698 select MIPS_L1_CACHE_SHIFT_7 1699 select HAVE_KVM 1700 help 1701 The Cavium Octeon processor is a highly integrated chip containing 1702 many ethernet hardware widgets for networking tasks. The processor 1703 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1704 Full details can be found at http://www.caviumnetworks.com. 1705 1706config CPU_BMIPS 1707 bool "Broadcom BMIPS" 1708 depends on SYS_HAS_CPU_BMIPS 1709 select CPU_MIPS32 1710 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1711 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1712 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1713 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1714 select CPU_SUPPORTS_32BIT_KERNEL 1715 select DMA_NONCOHERENT 1716 select IRQ_MIPS_CPU 1717 select SWAP_IO_SPACE 1718 select WEAK_ORDERING 1719 select CPU_SUPPORTS_HIGHMEM 1720 select CPU_HAS_PREFETCH 1721 select CPU_SUPPORTS_CPUFREQ 1722 select MIPS_EXTERNAL_TIMER 1723 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU 1724 help 1725 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1726 1727endchoice 1728 1729config CPU_MIPS32_3_5_FEATURES 1730 bool "MIPS32 Release 3.5 Features" 1731 depends on SYS_HAS_CPU_MIPS32_R3_5 1732 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1733 CPU_P5600 1734 help 1735 Choose this option to build a kernel for release 2 or later of the 1736 MIPS32 architecture including features from the 3.5 release such as 1737 support for Enhanced Virtual Addressing (EVA). 1738 1739config CPU_MIPS32_3_5_EVA 1740 bool "Enhanced Virtual Addressing (EVA)" 1741 depends on CPU_MIPS32_3_5_FEATURES 1742 select EVA 1743 default y 1744 help 1745 Choose this option if you want to enable the Enhanced Virtual 1746 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1747 One of its primary benefits is an increase in the maximum size 1748 of lowmem (up to 3GB). If unsure, say 'N' here. 1749 1750config CPU_MIPS32_R5_FEATURES 1751 bool "MIPS32 Release 5 Features" 1752 depends on SYS_HAS_CPU_MIPS32_R5 1753 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1754 help 1755 Choose this option to build a kernel for release 2 or later of the 1756 MIPS32 architecture including features from release 5 such as 1757 support for Extended Physical Addressing (XPA). 1758 1759config CPU_MIPS32_R5_XPA 1760 bool "Extended Physical Addressing (XPA)" 1761 depends on CPU_MIPS32_R5_FEATURES 1762 depends on !EVA 1763 depends on !PAGE_SIZE_4KB 1764 depends on SYS_SUPPORTS_HIGHMEM 1765 select XPA 1766 select HIGHMEM 1767 select PHYS_ADDR_T_64BIT 1768 default n 1769 help 1770 Choose this option if you want to enable the Extended Physical 1771 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1772 benefit is to increase physical addressing equal to or greater 1773 than 40 bits. Note that this has the side effect of turning on 1774 64-bit addressing which in turn makes the PTEs 64-bit in size. 1775 If unsure, say 'N' here. 1776 1777if CPU_LOONGSON2F 1778config CPU_NOP_WORKAROUNDS 1779 bool 1780 1781config CPU_JUMP_WORKAROUNDS 1782 bool 1783 1784config CPU_LOONGSON2F_WORKAROUNDS 1785 bool "Loongson 2F Workarounds" 1786 default y 1787 select CPU_NOP_WORKAROUNDS 1788 select CPU_JUMP_WORKAROUNDS 1789 help 1790 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1791 require workarounds. Without workarounds the system may hang 1792 unexpectedly. For more information please refer to the gas 1793 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1794 1795 Loongson 2F03 and later have fixed these issues and no workarounds 1796 are needed. The workarounds have no significant side effect on them 1797 but may decrease the performance of the system so this option should 1798 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1799 systems. 1800 1801 If unsure, please say Y. 1802endif # CPU_LOONGSON2F 1803 1804config SYS_SUPPORTS_ZBOOT 1805 bool 1806 select HAVE_KERNEL_GZIP 1807 select HAVE_KERNEL_BZIP2 1808 select HAVE_KERNEL_LZ4 1809 select HAVE_KERNEL_LZMA 1810 select HAVE_KERNEL_LZO 1811 select HAVE_KERNEL_XZ 1812 select HAVE_KERNEL_ZSTD 1813 1814config SYS_SUPPORTS_ZBOOT_UART16550 1815 bool 1816 select SYS_SUPPORTS_ZBOOT 1817 1818config SYS_SUPPORTS_ZBOOT_UART_PROM 1819 bool 1820 select SYS_SUPPORTS_ZBOOT 1821 1822config CPU_LOONGSON2EF 1823 bool 1824 select CPU_SUPPORTS_32BIT_KERNEL 1825 select CPU_SUPPORTS_64BIT_KERNEL 1826 select CPU_SUPPORTS_HIGHMEM 1827 select CPU_SUPPORTS_HUGEPAGES 1828 select ARCH_HAS_PHYS_TO_DMA 1829 1830config CPU_LOONGSON32 1831 bool 1832 select CPU_MIPS32 1833 select CPU_MIPSR2 1834 select CPU_HAS_PREFETCH 1835 select CPU_SUPPORTS_32BIT_KERNEL 1836 select CPU_SUPPORTS_HIGHMEM 1837 select CPU_SUPPORTS_CPUFREQ 1838 1839config CPU_BMIPS32_3300 1840 select SMP_UP if SMP 1841 bool 1842 1843config CPU_BMIPS4350 1844 bool 1845 select SYS_SUPPORTS_SMP 1846 select SYS_SUPPORTS_HOTPLUG_CPU 1847 1848config CPU_BMIPS4380 1849 bool 1850 select MIPS_L1_CACHE_SHIFT_6 1851 select SYS_SUPPORTS_SMP 1852 select SYS_SUPPORTS_HOTPLUG_CPU 1853 select CPU_HAS_RIXI 1854 1855config CPU_BMIPS5000 1856 bool 1857 select MIPS_CPU_SCACHE 1858 select MIPS_L1_CACHE_SHIFT_7 1859 select SYS_SUPPORTS_SMP 1860 select SYS_SUPPORTS_HOTPLUG_CPU 1861 select CPU_HAS_RIXI 1862 1863config SYS_HAS_CPU_LOONGSON64 1864 bool 1865 select CPU_SUPPORTS_CPUFREQ 1866 select CPU_HAS_RIXI 1867 1868config SYS_HAS_CPU_LOONGSON2E 1869 bool 1870 1871config SYS_HAS_CPU_LOONGSON2F 1872 bool 1873 select CPU_SUPPORTS_CPUFREQ 1874 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1875 1876config SYS_HAS_CPU_LOONGSON1B 1877 bool 1878 1879config SYS_HAS_CPU_LOONGSON1C 1880 bool 1881 1882config SYS_HAS_CPU_MIPS32_R1 1883 bool 1884 1885config SYS_HAS_CPU_MIPS32_R2 1886 bool 1887 1888config SYS_HAS_CPU_MIPS32_R3_5 1889 bool 1890 1891config SYS_HAS_CPU_MIPS32_R5 1892 bool 1893 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1894 1895config SYS_HAS_CPU_MIPS32_R6 1896 bool 1897 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1898 1899config SYS_HAS_CPU_MIPS64_R1 1900 bool 1901 1902config SYS_HAS_CPU_MIPS64_R2 1903 bool 1904 1905config SYS_HAS_CPU_MIPS64_R6 1906 bool 1907 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1908 1909config SYS_HAS_CPU_P5600 1910 bool 1911 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1912 1913config SYS_HAS_CPU_R3000 1914 bool 1915 1916config SYS_HAS_CPU_TX39XX 1917 bool 1918 1919config SYS_HAS_CPU_VR41XX 1920 bool 1921 1922config SYS_HAS_CPU_R4300 1923 bool 1924 1925config SYS_HAS_CPU_R4X00 1926 bool 1927 1928config SYS_HAS_CPU_TX49XX 1929 bool 1930 1931config SYS_HAS_CPU_R5000 1932 bool 1933 1934config SYS_HAS_CPU_R5500 1935 bool 1936 1937config SYS_HAS_CPU_NEVADA 1938 bool 1939 1940config SYS_HAS_CPU_R10000 1941 bool 1942 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1943 1944config SYS_HAS_CPU_RM7000 1945 bool 1946 1947config SYS_HAS_CPU_SB1 1948 bool 1949 1950config SYS_HAS_CPU_CAVIUM_OCTEON 1951 bool 1952 1953config SYS_HAS_CPU_BMIPS 1954 bool 1955 1956config SYS_HAS_CPU_BMIPS32_3300 1957 bool 1958 select SYS_HAS_CPU_BMIPS 1959 1960config SYS_HAS_CPU_BMIPS4350 1961 bool 1962 select SYS_HAS_CPU_BMIPS 1963 1964config SYS_HAS_CPU_BMIPS4380 1965 bool 1966 select SYS_HAS_CPU_BMIPS 1967 1968config SYS_HAS_CPU_BMIPS5000 1969 bool 1970 select SYS_HAS_CPU_BMIPS 1971 select ARCH_HAS_SYNC_DMA_FOR_CPU 1972 1973# 1974# CPU may reorder R->R, R->W, W->R, W->W 1975# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1976# 1977config WEAK_ORDERING 1978 bool 1979 1980# 1981# CPU may reorder reads and writes beyond LL/SC 1982# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1983# 1984config WEAK_REORDERING_BEYOND_LLSC 1985 bool 1986endmenu 1987 1988# 1989# These two indicate any level of the MIPS32 and MIPS64 architecture 1990# 1991config CPU_MIPS32 1992 bool 1993 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 1994 CPU_MIPS32_R6 || CPU_P5600 1995 1996config CPU_MIPS64 1997 bool 1998 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 1999 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON 2000 2001# 2002# These indicate the revision of the architecture 2003# 2004config CPU_MIPSR1 2005 bool 2006 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2007 2008config CPU_MIPSR2 2009 bool 2010 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2011 select CPU_HAS_RIXI 2012 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2013 select MIPS_SPRAM 2014 2015config CPU_MIPSR5 2016 bool 2017 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2018 select CPU_HAS_RIXI 2019 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2020 select MIPS_SPRAM 2021 2022config CPU_MIPSR6 2023 bool 2024 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2025 select CPU_HAS_RIXI 2026 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2027 select HAVE_ARCH_BITREVERSE 2028 select MIPS_ASID_BITS_VARIABLE 2029 select MIPS_CRC_SUPPORT 2030 select MIPS_SPRAM 2031 2032config TARGET_ISA_REV 2033 int 2034 default 1 if CPU_MIPSR1 2035 default 2 if CPU_MIPSR2 2036 default 5 if CPU_MIPSR5 2037 default 6 if CPU_MIPSR6 2038 default 0 2039 help 2040 Reflects the ISA revision being targeted by the kernel build. This 2041 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2042 2043config EVA 2044 bool 2045 2046config XPA 2047 bool 2048 2049config SYS_SUPPORTS_32BIT_KERNEL 2050 bool 2051config SYS_SUPPORTS_64BIT_KERNEL 2052 bool 2053config CPU_SUPPORTS_32BIT_KERNEL 2054 bool 2055config CPU_SUPPORTS_64BIT_KERNEL 2056 bool 2057config CPU_SUPPORTS_CPUFREQ 2058 bool 2059config CPU_SUPPORTS_ADDRWINCFG 2060 bool 2061config CPU_SUPPORTS_HUGEPAGES 2062 bool 2063 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2064config MIPS_PGD_C0_CONTEXT 2065 bool 2066 depends on 64BIT 2067 default y if (CPU_MIPSR2 || CPU_MIPSR6) 2068 2069# 2070# Set to y for ptrace access to watch registers. 2071# 2072config HARDWARE_WATCHPOINTS 2073 bool 2074 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2075 2076menu "Kernel type" 2077 2078choice 2079 prompt "Kernel code model" 2080 help 2081 You should only select this option if you have a workload that 2082 actually benefits from 64-bit processing or if your machine has 2083 large memory. You will only be presented a single option in this 2084 menu if your system does not support both 32-bit and 64-bit kernels. 2085 2086config 32BIT 2087 bool "32-bit kernel" 2088 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2089 select TRAD_SIGNALS 2090 help 2091 Select this option if you want to build a 32-bit kernel. 2092 2093config 64BIT 2094 bool "64-bit kernel" 2095 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2096 help 2097 Select this option if you want to build a 64-bit kernel. 2098 2099endchoice 2100 2101config MIPS_VA_BITS_48 2102 bool "48 bits virtual memory" 2103 depends on 64BIT 2104 help 2105 Support a maximum at least 48 bits of application virtual 2106 memory. Default is 40 bits or less, depending on the CPU. 2107 For page sizes 16k and above, this option results in a small 2108 memory overhead for page tables. For 4k page size, a fourth 2109 level of page tables is added which imposes both a memory 2110 overhead as well as slower TLB fault handling. 2111 2112 If unsure, say N. 2113 2114choice 2115 prompt "Kernel page size" 2116 default PAGE_SIZE_4KB 2117 2118config PAGE_SIZE_4KB 2119 bool "4kB" 2120 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2121 help 2122 This option select the standard 4kB Linux page size. On some 2123 R3000-family processors this is the only available page size. Using 2124 4kB page size will minimize memory consumption and is therefore 2125 recommended for low memory systems. 2126 2127config PAGE_SIZE_8KB 2128 bool "8kB" 2129 depends on CPU_CAVIUM_OCTEON 2130 depends on !MIPS_VA_BITS_48 2131 help 2132 Using 8kB page size will result in higher performance kernel at 2133 the price of higher memory consumption. This option is available 2134 only on cnMIPS processors. Note that you will need a suitable Linux 2135 distribution to support this. 2136 2137config PAGE_SIZE_16KB 2138 bool "16kB" 2139 depends on !CPU_R3000 && !CPU_TX39XX 2140 help 2141 Using 16kB page size will result in higher performance kernel at 2142 the price of higher memory consumption. This option is available on 2143 all non-R3000 family processors. Note that you will need a suitable 2144 Linux distribution to support this. 2145 2146config PAGE_SIZE_32KB 2147 bool "32kB" 2148 depends on CPU_CAVIUM_OCTEON 2149 depends on !MIPS_VA_BITS_48 2150 help 2151 Using 32kB page size will result in higher performance kernel at 2152 the price of higher memory consumption. This option is available 2153 only on cnMIPS cores. Note that you will need a suitable Linux 2154 distribution to support this. 2155 2156config PAGE_SIZE_64KB 2157 bool "64kB" 2158 depends on !CPU_R3000 && !CPU_TX39XX 2159 help 2160 Using 64kB page size will result in higher performance kernel at 2161 the price of higher memory consumption. This option is available on 2162 all non-R3000 family processor. Not that at the time of this 2163 writing this option is still high experimental. 2164 2165endchoice 2166 2167config FORCE_MAX_ZONEORDER 2168 int "Maximum zone order" 2169 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2170 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2171 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2172 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2173 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2174 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2175 range 0 64 2176 default "11" 2177 help 2178 The kernel memory allocator divides physically contiguous memory 2179 blocks into "zones", where each zone is a power of two number of 2180 pages. This option selects the largest power of two that the kernel 2181 keeps in the memory allocator. If you need to allocate very large 2182 blocks of physically contiguous memory, then you may need to 2183 increase this value. 2184 2185 This config option is actually maximum order plus one. For example, 2186 a value of 11 means that the largest free memory block is 2^10 pages. 2187 2188 The page size is not necessarily 4KB. Keep this in mind 2189 when choosing a value for this option. 2190 2191config BOARD_SCACHE 2192 bool 2193 2194config IP22_CPU_SCACHE 2195 bool 2196 select BOARD_SCACHE 2197 2198# 2199# Support for a MIPS32 / MIPS64 style S-caches 2200# 2201config MIPS_CPU_SCACHE 2202 bool 2203 select BOARD_SCACHE 2204 2205config R5000_CPU_SCACHE 2206 bool 2207 select BOARD_SCACHE 2208 2209config RM7000_CPU_SCACHE 2210 bool 2211 select BOARD_SCACHE 2212 2213config SIBYTE_DMA_PAGEOPS 2214 bool "Use DMA to clear/copy pages" 2215 depends on CPU_SB1 2216 help 2217 Instead of using the CPU to zero and copy pages, use a Data Mover 2218 channel. These DMA channels are otherwise unused by the standard 2219 SiByte Linux port. Seems to give a small performance benefit. 2220 2221config CPU_HAS_PREFETCH 2222 bool 2223 2224config CPU_GENERIC_DUMP_TLB 2225 bool 2226 default y if !(CPU_R3000 || CPU_TX39XX) 2227 2228config MIPS_FP_SUPPORT 2229 bool "Floating Point support" if EXPERT 2230 default y 2231 help 2232 Select y to include support for floating point in the kernel 2233 including initialization of FPU hardware, FP context save & restore 2234 and emulation of an FPU where necessary. Without this support any 2235 userland program attempting to use floating point instructions will 2236 receive a SIGILL. 2237 2238 If you know that your userland will not attempt to use floating point 2239 instructions then you can say n here to shrink the kernel a little. 2240 2241 If unsure, say y. 2242 2243config CPU_R2300_FPU 2244 bool 2245 depends on MIPS_FP_SUPPORT 2246 default y if CPU_R3000 || CPU_TX39XX 2247 2248config CPU_R3K_TLB 2249 bool 2250 2251config CPU_R4K_FPU 2252 bool 2253 depends on MIPS_FP_SUPPORT 2254 default y if !CPU_R2300_FPU 2255 2256config CPU_R4K_CACHE_TLB 2257 bool 2258 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2259 2260config MIPS_MT_SMP 2261 bool "MIPS MT SMP support (1 TC on each available VPE)" 2262 default y 2263 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2264 select CPU_MIPSR2_IRQ_VI 2265 select CPU_MIPSR2_IRQ_EI 2266 select SYNC_R4K 2267 select MIPS_MT 2268 select SMP 2269 select SMP_UP 2270 select SYS_SUPPORTS_SMP 2271 select SYS_SUPPORTS_SCHED_SMT 2272 select MIPS_PERF_SHARED_TC_COUNTERS 2273 help 2274 This is a kernel model which is known as SMVP. This is supported 2275 on cores with the MT ASE and uses the available VPEs to implement 2276 virtual processors which supports SMP. This is equivalent to the 2277 Intel Hyperthreading feature. For further information go to 2278 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2279 2280config MIPS_MT 2281 bool 2282 2283config SCHED_SMT 2284 bool "SMT (multithreading) scheduler support" 2285 depends on SYS_SUPPORTS_SCHED_SMT 2286 default n 2287 help 2288 SMT scheduler support improves the CPU scheduler's decision making 2289 when dealing with MIPS MT enabled cores at a cost of slightly 2290 increased overhead in some places. If unsure say N here. 2291 2292config SYS_SUPPORTS_SCHED_SMT 2293 bool 2294 2295config SYS_SUPPORTS_MULTITHREADING 2296 bool 2297 2298config MIPS_MT_FPAFF 2299 bool "Dynamic FPU affinity for FP-intensive threads" 2300 default y 2301 depends on MIPS_MT_SMP 2302 2303config MIPSR2_TO_R6_EMULATOR 2304 bool "MIPS R2-to-R6 emulator" 2305 depends on CPU_MIPSR6 2306 depends on MIPS_FP_SUPPORT 2307 default y 2308 help 2309 Choose this option if you want to run non-R6 MIPS userland code. 2310 Even if you say 'Y' here, the emulator will still be disabled by 2311 default. You can enable it using the 'mipsr2emu' kernel option. 2312 The only reason this is a build-time option is to save ~14K from the 2313 final kernel image. 2314 2315config SYS_SUPPORTS_VPE_LOADER 2316 bool 2317 depends on SYS_SUPPORTS_MULTITHREADING 2318 help 2319 Indicates that the platform supports the VPE loader, and provides 2320 physical_memsize. 2321 2322config MIPS_VPE_LOADER 2323 bool "VPE loader support." 2324 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2325 select CPU_MIPSR2_IRQ_VI 2326 select CPU_MIPSR2_IRQ_EI 2327 select MIPS_MT 2328 help 2329 Includes a loader for loading an elf relocatable object 2330 onto another VPE and running it. 2331 2332config MIPS_VPE_LOADER_CMP 2333 bool 2334 default "y" 2335 depends on MIPS_VPE_LOADER && MIPS_CMP 2336 2337config MIPS_VPE_LOADER_MT 2338 bool 2339 default "y" 2340 depends on MIPS_VPE_LOADER && !MIPS_CMP 2341 2342config MIPS_VPE_LOADER_TOM 2343 bool "Load VPE program into memory hidden from linux" 2344 depends on MIPS_VPE_LOADER 2345 default y 2346 help 2347 The loader can use memory that is present but has been hidden from 2348 Linux using the kernel command line option "mem=xxMB". It's up to 2349 you to ensure the amount you put in the option and the space your 2350 program requires is less or equal to the amount physically present. 2351 2352config MIPS_VPE_APSP_API 2353 bool "Enable support for AP/SP API (RTLX)" 2354 depends on MIPS_VPE_LOADER 2355 2356config MIPS_VPE_APSP_API_CMP 2357 bool 2358 default "y" 2359 depends on MIPS_VPE_APSP_API && MIPS_CMP 2360 2361config MIPS_VPE_APSP_API_MT 2362 bool 2363 default "y" 2364 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2365 2366config MIPS_CMP 2367 bool "MIPS CMP framework support (DEPRECATED)" 2368 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2369 select SMP 2370 select SYNC_R4K 2371 select SYS_SUPPORTS_SMP 2372 select WEAK_ORDERING 2373 default n 2374 help 2375 Select this if you are using a bootloader which implements the "CMP 2376 framework" protocol (ie. YAMON) and want your kernel to make use of 2377 its ability to start secondary CPUs. 2378 2379 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2380 instead of this. 2381 2382config MIPS_CPS 2383 bool "MIPS Coherent Processing System support" 2384 depends on SYS_SUPPORTS_MIPS_CPS 2385 select MIPS_CM 2386 select MIPS_CPS_PM if HOTPLUG_CPU 2387 select SMP 2388 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2389 select SYS_SUPPORTS_HOTPLUG_CPU 2390 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2391 select SYS_SUPPORTS_SMP 2392 select WEAK_ORDERING 2393 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU 2394 help 2395 Select this if you wish to run an SMP kernel across multiple cores 2396 within a MIPS Coherent Processing System. When this option is 2397 enabled the kernel will probe for other cores and boot them with 2398 no external assistance. It is safe to enable this when hardware 2399 support is unavailable. 2400 2401config MIPS_CPS_PM 2402 depends on MIPS_CPS 2403 bool 2404 2405config MIPS_CM 2406 bool 2407 select MIPS_CPC 2408 2409config MIPS_CPC 2410 bool 2411 2412config SB1_PASS_2_WORKAROUNDS 2413 bool 2414 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2415 default y 2416 2417config SB1_PASS_2_1_WORKAROUNDS 2418 bool 2419 depends on CPU_SB1 && CPU_SB1_PASS_2 2420 default y 2421 2422choice 2423 prompt "SmartMIPS or microMIPS ASE support" 2424 2425config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2426 bool "None" 2427 help 2428 Select this if you want neither microMIPS nor SmartMIPS support 2429 2430config CPU_HAS_SMARTMIPS 2431 depends on SYS_SUPPORTS_SMARTMIPS 2432 bool "SmartMIPS" 2433 help 2434 SmartMIPS is a extension of the MIPS32 architecture aimed at 2435 increased security at both hardware and software level for 2436 smartcards. Enabling this option will allow proper use of the 2437 SmartMIPS instructions by Linux applications. However a kernel with 2438 this option will not work on a MIPS core without SmartMIPS core. If 2439 you don't know you probably don't have SmartMIPS and should say N 2440 here. 2441 2442config CPU_MICROMIPS 2443 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2444 bool "microMIPS" 2445 help 2446 When this option is enabled the kernel will be built using the 2447 microMIPS ISA 2448 2449endchoice 2450 2451config CPU_HAS_MSA 2452 bool "Support for the MIPS SIMD Architecture" 2453 depends on CPU_SUPPORTS_MSA 2454 depends on MIPS_FP_SUPPORT 2455 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2456 help 2457 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2458 and a set of SIMD instructions to operate on them. When this option 2459 is enabled the kernel will support allocating & switching MSA 2460 vector register contexts. If you know that your kernel will only be 2461 running on CPUs which do not support MSA or that your userland will 2462 not be making use of it then you may wish to say N here to reduce 2463 the size & complexity of your kernel. 2464 2465 If unsure, say Y. 2466 2467config CPU_HAS_WB 2468 bool 2469 2470config XKS01 2471 bool 2472 2473config CPU_HAS_DIEI 2474 depends on !CPU_DIEI_BROKEN 2475 bool 2476 2477config CPU_DIEI_BROKEN 2478 bool 2479 2480config CPU_HAS_RIXI 2481 bool 2482 2483config CPU_NO_LOAD_STORE_LR 2484 bool 2485 help 2486 CPU lacks support for unaligned load and store instructions: 2487 LWL, LWR, SWL, SWR (Load/store word left/right). 2488 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2489 systems). 2490 2491# 2492# Vectored interrupt mode is an R2 feature 2493# 2494config CPU_MIPSR2_IRQ_VI 2495 bool 2496 2497# 2498# Extended interrupt mode is an R2 feature 2499# 2500config CPU_MIPSR2_IRQ_EI 2501 bool 2502 2503config CPU_HAS_SYNC 2504 bool 2505 depends on !CPU_R3000 2506 default y 2507 2508# 2509# CPU non-features 2510# 2511config CPU_DADDI_WORKAROUNDS 2512 bool 2513 2514config CPU_R4000_WORKAROUNDS 2515 bool 2516 select CPU_R4400_WORKAROUNDS 2517 2518config CPU_R4400_WORKAROUNDS 2519 bool 2520 2521config CPU_R4X00_BUGS64 2522 bool 2523 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2524 2525config MIPS_ASID_SHIFT 2526 int 2527 default 6 if CPU_R3000 || CPU_TX39XX 2528 default 0 2529 2530config MIPS_ASID_BITS 2531 int 2532 default 0 if MIPS_ASID_BITS_VARIABLE 2533 default 6 if CPU_R3000 || CPU_TX39XX 2534 default 8 2535 2536config MIPS_ASID_BITS_VARIABLE 2537 bool 2538 2539config MIPS_CRC_SUPPORT 2540 bool 2541 2542# R4600 erratum. Due to the lack of errata information the exact 2543# technical details aren't known. I've experimentally found that disabling 2544# interrupts during indexed I-cache flushes seems to be sufficient to deal 2545# with the issue. 2546config WAR_R4600_V1_INDEX_ICACHEOP 2547 bool 2548 2549# Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata: 2550# 2551# 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D, 2552# Hit_Invalidate_D and Create_Dirty_Excl_D should only be 2553# executed if there is no other dcache activity. If the dcache is 2554# accessed for another instruction immediately preceding when these 2555# cache instructions are executing, it is possible that the dcache 2556# tag match outputs used by these cache instructions will be 2557# incorrect. These cache instructions should be preceded by at least 2558# four instructions that are not any kind of load or store 2559# instruction. 2560# 2561# This is not allowed: lw 2562# nop 2563# nop 2564# nop 2565# cache Hit_Writeback_Invalidate_D 2566# 2567# This is allowed: lw 2568# nop 2569# nop 2570# nop 2571# nop 2572# cache Hit_Writeback_Invalidate_D 2573config WAR_R4600_V1_HIT_CACHEOP 2574 bool 2575 2576# Writeback and invalidate the primary cache dcache before DMA. 2577# 2578# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D, 2579# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only 2580# operate correctly if the internal data cache refill buffer is empty. These 2581# CACHE instructions should be separated from any potential data cache miss 2582# by a load instruction to an uncached address to empty the response buffer." 2583# (Revision 2.0 device errata from IDT available on https://www.idt.com/ 2584# in .pdf format.) 2585config WAR_R4600_V2_HIT_CACHEOP 2586 bool 2587 2588# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for 2589# the line which this instruction itself exists, the following 2590# operation is not guaranteed." 2591# 2592# Workaround: do two phase flushing for Index_Invalidate_I 2593config WAR_TX49XX_ICACHE_INDEX_INV 2594 bool 2595 2596# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra 2597# opposes it being called that) where invalid instructions in the same 2598# I-cache line worth of instructions being fetched may case spurious 2599# exceptions. 2600config WAR_ICACHE_REFILLS 2601 bool 2602 2603# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that 2604# may cause ll / sc and lld / scd sequences to execute non-atomically. 2605config WAR_R10000_LLSC 2606 bool 2607 2608# 34K core erratum: "Problems Executing the TLBR Instruction" 2609config WAR_MIPS34K_MISSED_ITLB 2610 bool 2611 2612# 2613# - Highmem only makes sense for the 32-bit kernel. 2614# - The current highmem code will only work properly on physically indexed 2615# caches such as R3000, SB1, R7000 or those that look like they're virtually 2616# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2617# moment we protect the user and offer the highmem option only on machines 2618# where it's known to be safe. This will not offer highmem on a few systems 2619# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2620# indexed CPUs but we're playing safe. 2621# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2622# know they might have memory configurations that could make use of highmem 2623# support. 2624# 2625config HIGHMEM 2626 bool "High Memory Support" 2627 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2628 select KMAP_LOCAL 2629 2630config CPU_SUPPORTS_HIGHMEM 2631 bool 2632 2633config SYS_SUPPORTS_HIGHMEM 2634 bool 2635 2636config SYS_SUPPORTS_SMARTMIPS 2637 bool 2638 2639config SYS_SUPPORTS_MICROMIPS 2640 bool 2641 2642config SYS_SUPPORTS_MIPS16 2643 bool 2644 help 2645 This option must be set if a kernel might be executed on a MIPS16- 2646 enabled CPU even if MIPS16 is not actually being used. In other 2647 words, it makes the kernel MIPS16-tolerant. 2648 2649config CPU_SUPPORTS_MSA 2650 bool 2651 2652config ARCH_FLATMEM_ENABLE 2653 def_bool y 2654 depends on !NUMA && !CPU_LOONGSON2EF 2655 2656config ARCH_SPARSEMEM_ENABLE 2657 bool 2658 select SPARSEMEM_STATIC if !SGI_IP27 2659 2660config NUMA 2661 bool "NUMA Support" 2662 depends on SYS_SUPPORTS_NUMA 2663 select SMP 2664 help 2665 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2666 Access). This option improves performance on systems with more 2667 than two nodes; on two node systems it is generally better to 2668 leave it disabled; on single node systems leave this option 2669 disabled. 2670 2671config SYS_SUPPORTS_NUMA 2672 bool 2673 2674config HAVE_SETUP_PER_CPU_AREA 2675 def_bool y 2676 depends on NUMA 2677 2678config NEED_PER_CPU_EMBED_FIRST_CHUNK 2679 def_bool y 2680 depends on NUMA 2681 2682config RELOCATABLE 2683 bool "Relocatable kernel" 2684 depends on SYS_SUPPORTS_RELOCATABLE 2685 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2686 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2687 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2688 CPU_P5600 || CAVIUM_OCTEON_SOC || \ 2689 CPU_LOONGSON64 2690 help 2691 This builds a kernel image that retains relocation information 2692 so it can be loaded someplace besides the default 1MB. 2693 The relocations make the kernel binary about 15% larger, 2694 but are discarded at runtime 2695 2696config RELOCATION_TABLE_SIZE 2697 hex "Relocation table size" 2698 depends on RELOCATABLE 2699 range 0x0 0x01000000 2700 default "0x00200000" if CPU_LOONGSON64 2701 default "0x00100000" 2702 help 2703 A table of relocation data will be appended to the kernel binary 2704 and parsed at boot to fix up the relocated kernel. 2705 2706 This option allows the amount of space reserved for the table to be 2707 adjusted, although the default of 1Mb should be ok in most cases. 2708 2709 The build will fail and a valid size suggested if this is too small. 2710 2711 If unsure, leave at the default value. 2712 2713config RANDOMIZE_BASE 2714 bool "Randomize the address of the kernel image" 2715 depends on RELOCATABLE 2716 help 2717 Randomizes the physical and virtual address at which the 2718 kernel image is loaded, as a security feature that 2719 deters exploit attempts relying on knowledge of the location 2720 of kernel internals. 2721 2722 Entropy is generated using any coprocessor 0 registers available. 2723 2724 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2725 2726 If unsure, say N. 2727 2728config RANDOMIZE_BASE_MAX_OFFSET 2729 hex "Maximum kASLR offset" if EXPERT 2730 depends on RANDOMIZE_BASE 2731 range 0x0 0x40000000 if EVA || 64BIT 2732 range 0x0 0x08000000 2733 default "0x01000000" 2734 help 2735 When kASLR is active, this provides the maximum offset that will 2736 be applied to the kernel image. It should be set according to the 2737 amount of physical RAM available in the target system minus 2738 PHYSICAL_START and must be a power of 2. 2739 2740 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2741 EVA or 64-bit. The default is 16Mb. 2742 2743config NODES_SHIFT 2744 int 2745 default "6" 2746 depends on NUMA 2747 2748config HW_PERF_EVENTS 2749 bool "Enable hardware performance counter support for perf events" 2750 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64) 2751 default y 2752 help 2753 Enable hardware performance counter support for perf events. If 2754 disabled, perf events will use software events only. 2755 2756config DMI 2757 bool "Enable DMI scanning" 2758 depends on MACH_LOONGSON64 2759 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2760 default y 2761 help 2762 Enabled scanning of DMI to identify machine quirks. Say Y 2763 here unless you have verified that your setup is not 2764 affected by entries in the DMI blacklist. Required by PNP 2765 BIOS code. 2766 2767config SMP 2768 bool "Multi-Processing support" 2769 depends on SYS_SUPPORTS_SMP 2770 help 2771 This enables support for systems with more than one CPU. If you have 2772 a system with only one CPU, say N. If you have a system with more 2773 than one CPU, say Y. 2774 2775 If you say N here, the kernel will run on uni- and multiprocessor 2776 machines, but will use only one CPU of a multiprocessor machine. If 2777 you say Y here, the kernel will run on many, but not all, 2778 uniprocessor machines. On a uniprocessor machine, the kernel 2779 will run faster if you say N here. 2780 2781 People using multiprocessor machines who say Y here should also say 2782 Y to "Enhanced Real Time Clock Support", below. 2783 2784 See also the SMP-HOWTO available at 2785 <https://www.tldp.org/docs.html#howto>. 2786 2787 If you don't know what to do here, say N. 2788 2789config HOTPLUG_CPU 2790 bool "Support for hot-pluggable CPUs" 2791 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2792 help 2793 Say Y here to allow turning CPUs off and on. CPUs can be 2794 controlled through /sys/devices/system/cpu. 2795 (Note: power management support will enable this option 2796 automatically on SMP systems. ) 2797 Say N if you want to disable CPU hotplug. 2798 2799config SMP_UP 2800 bool 2801 2802config SYS_SUPPORTS_MIPS_CMP 2803 bool 2804 2805config SYS_SUPPORTS_MIPS_CPS 2806 bool 2807 2808config SYS_SUPPORTS_SMP 2809 bool 2810 2811config NR_CPUS_DEFAULT_4 2812 bool 2813 2814config NR_CPUS_DEFAULT_8 2815 bool 2816 2817config NR_CPUS_DEFAULT_16 2818 bool 2819 2820config NR_CPUS_DEFAULT_32 2821 bool 2822 2823config NR_CPUS_DEFAULT_64 2824 bool 2825 2826config NR_CPUS 2827 int "Maximum number of CPUs (2-256)" 2828 range 2 256 2829 depends on SMP 2830 default "4" if NR_CPUS_DEFAULT_4 2831 default "8" if NR_CPUS_DEFAULT_8 2832 default "16" if NR_CPUS_DEFAULT_16 2833 default "32" if NR_CPUS_DEFAULT_32 2834 default "64" if NR_CPUS_DEFAULT_64 2835 help 2836 This allows you to specify the maximum number of CPUs which this 2837 kernel will support. The maximum supported value is 32 for 32-bit 2838 kernel and 64 for 64-bit kernels; the minimum value which makes 2839 sense is 1 for Qemu (useful only for kernel debugging purposes) 2840 and 2 for all others. 2841 2842 This is purely to save memory - each supported CPU adds 2843 approximately eight kilobytes to the kernel image. For best 2844 performance should round up your number of processors to the next 2845 power of two. 2846 2847config MIPS_PERF_SHARED_TC_COUNTERS 2848 bool 2849 2850config MIPS_NR_CPU_NR_MAP_1024 2851 bool 2852 2853config MIPS_NR_CPU_NR_MAP 2854 int 2855 depends on SMP 2856 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2857 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2858 2859# 2860# Timer Interrupt Frequency Configuration 2861# 2862 2863choice 2864 prompt "Timer frequency" 2865 default HZ_250 2866 help 2867 Allows the configuration of the timer frequency. 2868 2869 config HZ_24 2870 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2871 2872 config HZ_48 2873 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2874 2875 config HZ_100 2876 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2877 2878 config HZ_128 2879 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2880 2881 config HZ_250 2882 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2883 2884 config HZ_256 2885 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2886 2887 config HZ_1000 2888 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2889 2890 config HZ_1024 2891 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2892 2893endchoice 2894 2895config SYS_SUPPORTS_24HZ 2896 bool 2897 2898config SYS_SUPPORTS_48HZ 2899 bool 2900 2901config SYS_SUPPORTS_100HZ 2902 bool 2903 2904config SYS_SUPPORTS_128HZ 2905 bool 2906 2907config SYS_SUPPORTS_250HZ 2908 bool 2909 2910config SYS_SUPPORTS_256HZ 2911 bool 2912 2913config SYS_SUPPORTS_1000HZ 2914 bool 2915 2916config SYS_SUPPORTS_1024HZ 2917 bool 2918 2919config SYS_SUPPORTS_ARBIT_HZ 2920 bool 2921 default y if !SYS_SUPPORTS_24HZ && \ 2922 !SYS_SUPPORTS_48HZ && \ 2923 !SYS_SUPPORTS_100HZ && \ 2924 !SYS_SUPPORTS_128HZ && \ 2925 !SYS_SUPPORTS_250HZ && \ 2926 !SYS_SUPPORTS_256HZ && \ 2927 !SYS_SUPPORTS_1000HZ && \ 2928 !SYS_SUPPORTS_1024HZ 2929 2930config HZ 2931 int 2932 default 24 if HZ_24 2933 default 48 if HZ_48 2934 default 100 if HZ_100 2935 default 128 if HZ_128 2936 default 250 if HZ_250 2937 default 256 if HZ_256 2938 default 1000 if HZ_1000 2939 default 1024 if HZ_1024 2940 2941config SCHED_HRTICK 2942 def_bool HIGH_RES_TIMERS 2943 2944config KEXEC 2945 bool "Kexec system call" 2946 select KEXEC_CORE 2947 help 2948 kexec is a system call that implements the ability to shutdown your 2949 current kernel, and to start another kernel. It is like a reboot 2950 but it is independent of the system firmware. And like a reboot 2951 you can start any kernel with it, not just Linux. 2952 2953 The name comes from the similarity to the exec system call. 2954 2955 It is an ongoing process to be certain the hardware in a machine 2956 is properly shutdown, so do not be surprised if this code does not 2957 initially work for you. As of this writing the exact hardware 2958 interface is strongly in flux, so no good recommendation can be 2959 made. 2960 2961config CRASH_DUMP 2962 bool "Kernel crash dumps" 2963 help 2964 Generate crash dump after being started by kexec. 2965 This should be normally only set in special crash dump kernels 2966 which are loaded in the main kernel with kexec-tools into 2967 a specially reserved region and then later executed after 2968 a crash by kdump/kexec. The crash dump kernel must be compiled 2969 to a memory address not used by the main kernel or firmware using 2970 PHYSICAL_START. 2971 2972config PHYSICAL_START 2973 hex "Physical address where the kernel is loaded" 2974 default "0xffffffff84000000" 2975 depends on CRASH_DUMP 2976 help 2977 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2978 If you plan to use kernel for capturing the crash dump change 2979 this value to start of the reserved region (the "X" value as 2980 specified in the "crashkernel=YM@XM" command line boot parameter 2981 passed to the panic-ed kernel). 2982 2983config MIPS_O32_FP64_SUPPORT 2984 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2985 depends on 32BIT || MIPS32_O32 2986 help 2987 When this is enabled, the kernel will support use of 64-bit floating 2988 point registers with binaries using the O32 ABI along with the 2989 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2990 32-bit MIPS systems this support is at the cost of increasing the 2991 size and complexity of the compiled FPU emulator. Thus if you are 2992 running a MIPS32 system and know that none of your userland binaries 2993 will require 64-bit floating point, you may wish to reduce the size 2994 of your kernel & potentially improve FP emulation performance by 2995 saying N here. 2996 2997 Although binutils currently supports use of this flag the details 2998 concerning its effect upon the O32 ABI in userland are still being 2999 worked on. In order to avoid userland becoming dependent upon current 3000 behaviour before the details have been finalised, this option should 3001 be considered experimental and only enabled by those working upon 3002 said details. 3003 3004 If unsure, say N. 3005 3006config USE_OF 3007 bool 3008 select OF 3009 select OF_EARLY_FLATTREE 3010 select IRQ_DOMAIN 3011 3012config UHI_BOOT 3013 bool 3014 3015config BUILTIN_DTB 3016 bool 3017 3018choice 3019 prompt "Kernel appended dtb support" if USE_OF 3020 default MIPS_NO_APPENDED_DTB 3021 3022 config MIPS_NO_APPENDED_DTB 3023 bool "None" 3024 help 3025 Do not enable appended dtb support. 3026 3027 config MIPS_ELF_APPENDED_DTB 3028 bool "vmlinux" 3029 help 3030 With this option, the boot code will look for a device tree binary 3031 DTB) included in the vmlinux ELF section .appended_dtb. By default 3032 it is empty and the DTB can be appended using binutils command 3033 objcopy: 3034 3035 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3036 3037 This is meant as a backward compatibility convenience for those 3038 systems with a bootloader that can't be upgraded to accommodate 3039 the documented boot protocol using a device tree. 3040 3041 config MIPS_RAW_APPENDED_DTB 3042 bool "vmlinux.bin or vmlinuz.bin" 3043 help 3044 With this option, the boot code will look for a device tree binary 3045 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3046 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3047 3048 This is meant as a backward compatibility convenience for those 3049 systems with a bootloader that can't be upgraded to accommodate 3050 the documented boot protocol using a device tree. 3051 3052 Beware that there is very little in terms of protection against 3053 this option being confused by leftover garbage in memory that might 3054 look like a DTB header after a reboot if no actual DTB is appended 3055 to vmlinux.bin. Do not leave this option active in a production kernel 3056 if you don't intend to always append a DTB. 3057endchoice 3058 3059choice 3060 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3061 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3062 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3063 !CAVIUM_OCTEON_SOC 3064 default MIPS_CMDLINE_FROM_BOOTLOADER 3065 3066 config MIPS_CMDLINE_FROM_DTB 3067 depends on USE_OF 3068 bool "Dtb kernel arguments if available" 3069 3070 config MIPS_CMDLINE_DTB_EXTEND 3071 depends on USE_OF 3072 bool "Extend dtb kernel arguments with bootloader arguments" 3073 3074 config MIPS_CMDLINE_FROM_BOOTLOADER 3075 bool "Bootloader kernel arguments if available" 3076 3077 config MIPS_CMDLINE_BUILTIN_EXTEND 3078 depends on CMDLINE_BOOL 3079 bool "Extend builtin kernel arguments with bootloader arguments" 3080endchoice 3081 3082endmenu 3083 3084config LOCKDEP_SUPPORT 3085 bool 3086 default y 3087 3088config STACKTRACE_SUPPORT 3089 bool 3090 default y 3091 3092config PGTABLE_LEVELS 3093 int 3094 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3095 default 3 if 64BIT && !PAGE_SIZE_64KB 3096 default 2 3097 3098config MIPS_AUTO_PFN_OFFSET 3099 bool 3100 3101menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3102 3103config PCI_DRIVERS_GENERIC 3104 select PCI_DOMAINS_GENERIC if PCI 3105 bool 3106 3107config PCI_DRIVERS_LEGACY 3108 def_bool !PCI_DRIVERS_GENERIC 3109 select NO_GENERIC_PCI_IOPORT_MAP 3110 select PCI_DOMAINS if PCI 3111 3112# 3113# ISA support is now enabled via select. Too many systems still have the one 3114# or other ISA chip on the board that users don't know about so don't expect 3115# users to choose the right thing ... 3116# 3117config ISA 3118 bool 3119 3120config TC 3121 bool "TURBOchannel support" 3122 depends on MACH_DECSTATION 3123 help 3124 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3125 processors. TURBOchannel programming specifications are available 3126 at: 3127 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3128 and: 3129 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3130 Linux driver support status is documented at: 3131 <http://www.linux-mips.org/wiki/DECstation> 3132 3133config MMU 3134 bool 3135 default y 3136 3137config ARCH_MMAP_RND_BITS_MIN 3138 default 12 if 64BIT 3139 default 8 3140 3141config ARCH_MMAP_RND_BITS_MAX 3142 default 18 if 64BIT 3143 default 15 3144 3145config ARCH_MMAP_RND_COMPAT_BITS_MIN 3146 default 8 3147 3148config ARCH_MMAP_RND_COMPAT_BITS_MAX 3149 default 15 3150 3151config I8253 3152 bool 3153 select CLKSRC_I8253 3154 select CLKEVT_I8253 3155 select MIPS_EXTERNAL_TIMER 3156endmenu 3157 3158config TRAD_SIGNALS 3159 bool 3160 3161config MIPS32_COMPAT 3162 bool 3163 3164config COMPAT 3165 bool 3166 3167config SYSVIPC_COMPAT 3168 bool 3169 3170config MIPS32_O32 3171 bool "Kernel support for o32 binaries" 3172 depends on 64BIT 3173 select ARCH_WANT_OLD_COMPAT_IPC 3174 select COMPAT 3175 select MIPS32_COMPAT 3176 select SYSVIPC_COMPAT if SYSVIPC 3177 help 3178 Select this option if you want to run o32 binaries. These are pure 3179 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3180 existing binaries are in this format. 3181 3182 If unsure, say Y. 3183 3184config MIPS32_N32 3185 bool "Kernel support for n32 binaries" 3186 depends on 64BIT 3187 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3188 select COMPAT 3189 select MIPS32_COMPAT 3190 select SYSVIPC_COMPAT if SYSVIPC 3191 help 3192 Select this option if you want to run n32 binaries. These are 3193 64-bit binaries using 32-bit quantities for addressing and certain 3194 data that would normally be 64-bit. They are used in special 3195 cases. 3196 3197 If unsure, say N. 3198 3199menu "Power management options" 3200 3201config ARCH_HIBERNATION_POSSIBLE 3202 def_bool y 3203 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3204 3205config ARCH_SUSPEND_POSSIBLE 3206 def_bool y 3207 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3208 3209source "kernel/power/Kconfig" 3210 3211endmenu 3212 3213config MIPS_EXTERNAL_TIMER 3214 bool 3215 3216menu "CPU Power Management" 3217 3218if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3219source "drivers/cpufreq/Kconfig" 3220endif 3221 3222source "drivers/cpuidle/Kconfig" 3223 3224endmenu 3225 3226source "arch/mips/kvm/Kconfig" 3227 3228source "arch/mips/vdso/Kconfig" 3229