1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_CLOCKSOURCE_DATA 8 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 9 select ARCH_HAS_UBSAN_SANITIZE_ALL 10 select ARCH_HAS_FORTIFY_SOURCE 11 select ARCH_SUPPORTS_UPROBES 12 select ARCH_USE_BUILTIN_BSWAP 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 14 select ARCH_USE_QUEUED_RWLOCKS 15 select ARCH_USE_QUEUED_SPINLOCKS 16 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 17 select ARCH_WANT_IPC_PARSE_VERSION 18 select BUILDTIME_EXTABLE_SORT 19 select CLONE_BACKWARDS 20 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 21 select CPU_PM if CPU_IDLE 22 select GENERIC_ATOMIC64 if !64BIT 23 select GENERIC_CLOCKEVENTS 24 select GENERIC_CMOS_UPDATE 25 select GENERIC_CPU_AUTOPROBE 26 select GENERIC_GETTIMEOFDAY 27 select GENERIC_IOMAP 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select GENERIC_ISA_DMA if EISA 31 select GENERIC_LIB_ASHLDI3 32 select GENERIC_LIB_ASHRDI3 33 select GENERIC_LIB_CMPDI2 34 select GENERIC_LIB_LSHRDI3 35 select GENERIC_LIB_UCMPDI2 36 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 37 select GENERIC_SMP_IDLE_THREAD 38 select GENERIC_TIME_VSYSCALL 39 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 40 select HANDLE_DOMAIN_IRQ 41 select HAVE_ARCH_COMPILER_H 42 select HAVE_ARCH_JUMP_LABEL 43 select HAVE_ARCH_KGDB 44 select HAVE_ARCH_MMAP_RND_BITS if MMU 45 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 46 select HAVE_ARCH_SECCOMP_FILTER 47 select HAVE_ARCH_TRACEHOOK 48 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 49 select HAVE_ASM_MODVERSIONS 50 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 51 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 52 select HAVE_CONTEXT_TRACKING 53 select HAVE_COPY_THREAD_TLS 54 select HAVE_C_RECORDMCOUNT 55 select HAVE_DEBUG_KMEMLEAK 56 select HAVE_DEBUG_STACKOVERFLOW 57 select HAVE_DMA_CONTIGUOUS 58 select HAVE_DYNAMIC_FTRACE 59 select HAVE_EXIT_THREAD 60 select HAVE_FAST_GUP 61 select HAVE_FTRACE_MCOUNT_RECORD 62 select HAVE_FUNCTION_GRAPH_TRACER 63 select HAVE_FUNCTION_TRACER 64 select HAVE_IDE 65 select HAVE_IOREMAP_PROT 66 select HAVE_IRQ_EXIT_ON_IRQ_STACK 67 select HAVE_IRQ_TIME_ACCOUNTING 68 select HAVE_KPROBES 69 select HAVE_KRETPROBES 70 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 71 select HAVE_MEMBLOCK_NODE_MAP 72 select HAVE_MOD_ARCH_SPECIFIC 73 select HAVE_NMI 74 select HAVE_OPROFILE 75 select HAVE_PERF_EVENTS 76 select HAVE_REGS_AND_STACK_ACCESS_API 77 select HAVE_RSEQ 78 select HAVE_SPARSE_SYSCALL_NR 79 select HAVE_STACKPROTECTOR 80 select HAVE_SYSCALL_TRACEPOINTS 81 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 82 select HAVE_GENERIC_VDSO 83 select IRQ_FORCED_THREADING 84 select ISA if EISA 85 select MODULES_USE_ELF_RELA if MODULES && 64BIT 86 select MODULES_USE_ELF_REL if MODULES 87 select PERF_USE_VMALLOC 88 select RTC_LIB 89 select SYSCTL_EXCEPTION_TRACE 90 select VIRT_TO_BUS 91 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 92 select ARCH_HAS_KCOV 93 select HAVE_GCC_PLUGINS 94 95menu "Machine selection" 96 97choice 98 prompt "System type" 99 default MIPS_GENERIC 100 101config MIPS_GENERIC 102 bool "Generic board-agnostic MIPS kernel" 103 select BOOT_RAW 104 select BUILTIN_DTB 105 select CEVT_R4K 106 select CLKSRC_MIPS_GIC 107 select COMMON_CLK 108 select CPU_MIPSR2_IRQ_VI 109 select CPU_MIPSR2_IRQ_EI 110 select CSRC_R4K 111 select DMA_PERDEV_COHERENT 112 select HAVE_PCI 113 select IRQ_MIPS_CPU 114 select LIBFDT 115 select MIPS_AUTO_PFN_OFFSET 116 select MIPS_CPU_SCACHE 117 select MIPS_GIC 118 select MIPS_L1_CACHE_SHIFT_7 119 select NO_EXCEPT_FILL 120 select PCI_DRIVERS_GENERIC 121 select PINCTRL 122 select SMP_UP if SMP 123 select SWAP_IO_SPACE 124 select SYS_HAS_CPU_MIPS32_R1 125 select SYS_HAS_CPU_MIPS32_R2 126 select SYS_HAS_CPU_MIPS32_R6 127 select SYS_HAS_CPU_MIPS64_R1 128 select SYS_HAS_CPU_MIPS64_R2 129 select SYS_HAS_CPU_MIPS64_R6 130 select SYS_SUPPORTS_32BIT_KERNEL 131 select SYS_SUPPORTS_64BIT_KERNEL 132 select SYS_SUPPORTS_BIG_ENDIAN 133 select SYS_SUPPORTS_HIGHMEM 134 select SYS_SUPPORTS_LITTLE_ENDIAN 135 select SYS_SUPPORTS_MICROMIPS 136 select SYS_SUPPORTS_MIPS_CPS 137 select SYS_SUPPORTS_MIPS16 138 select SYS_SUPPORTS_MULTITHREADING 139 select SYS_SUPPORTS_RELOCATABLE 140 select SYS_SUPPORTS_SMARTMIPS 141 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 142 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 143 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 144 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 145 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 146 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 147 select USE_OF 148 select UHI_BOOT 149 help 150 Select this to build a kernel which aims to support multiple boards, 151 generally using a flattened device tree passed from the bootloader 152 using the boot protocol defined in the UHI (Unified Hosting 153 Interface) specification. 154 155config MIPS_ALCHEMY 156 bool "Alchemy processor based machines" 157 select PHYS_ADDR_T_64BIT 158 select CEVT_R4K 159 select CSRC_R4K 160 select IRQ_MIPS_CPU 161 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 162 select SYS_HAS_CPU_MIPS32_R1 163 select SYS_SUPPORTS_32BIT_KERNEL 164 select SYS_SUPPORTS_APM_EMULATION 165 select GPIOLIB 166 select SYS_SUPPORTS_ZBOOT 167 select COMMON_CLK 168 169config AR7 170 bool "Texas Instruments AR7" 171 select BOOT_ELF32 172 select DMA_NONCOHERENT 173 select CEVT_R4K 174 select CSRC_R4K 175 select IRQ_MIPS_CPU 176 select NO_EXCEPT_FILL 177 select SWAP_IO_SPACE 178 select SYS_HAS_CPU_MIPS32_R1 179 select SYS_HAS_EARLY_PRINTK 180 select SYS_SUPPORTS_32BIT_KERNEL 181 select SYS_SUPPORTS_LITTLE_ENDIAN 182 select SYS_SUPPORTS_MIPS16 183 select SYS_SUPPORTS_ZBOOT_UART16550 184 select GPIOLIB 185 select VLYNQ 186 select HAVE_CLK 187 help 188 Support for the Texas Instruments AR7 System-on-a-Chip 189 family: TNETD7100, 7200 and 7300. 190 191config ATH25 192 bool "Atheros AR231x/AR531x SoC support" 193 select CEVT_R4K 194 select CSRC_R4K 195 select DMA_NONCOHERENT 196 select IRQ_MIPS_CPU 197 select IRQ_DOMAIN 198 select SYS_HAS_CPU_MIPS32_R1 199 select SYS_SUPPORTS_BIG_ENDIAN 200 select SYS_SUPPORTS_32BIT_KERNEL 201 select SYS_HAS_EARLY_PRINTK 202 help 203 Support for Atheros AR231x and Atheros AR531x based boards 204 205config ATH79 206 bool "Atheros AR71XX/AR724X/AR913X based boards" 207 select ARCH_HAS_RESET_CONTROLLER 208 select BOOT_RAW 209 select CEVT_R4K 210 select CSRC_R4K 211 select DMA_NONCOHERENT 212 select GPIOLIB 213 select PINCTRL 214 select HAVE_CLK 215 select COMMON_CLK 216 select CLKDEV_LOOKUP 217 select IRQ_MIPS_CPU 218 select SYS_HAS_CPU_MIPS32_R2 219 select SYS_HAS_EARLY_PRINTK 220 select SYS_SUPPORTS_32BIT_KERNEL 221 select SYS_SUPPORTS_BIG_ENDIAN 222 select SYS_SUPPORTS_MIPS16 223 select SYS_SUPPORTS_ZBOOT_UART_PROM 224 select USE_OF 225 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 226 help 227 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 228 229config BMIPS_GENERIC 230 bool "Broadcom Generic BMIPS kernel" 231 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 232 select ARCH_HAS_PHYS_TO_DMA 233 select BOOT_RAW 234 select NO_EXCEPT_FILL 235 select USE_OF 236 select CEVT_R4K 237 select CSRC_R4K 238 select SYNC_R4K 239 select COMMON_CLK 240 select BCM6345_L1_IRQ 241 select BCM7038_L1_IRQ 242 select BCM7120_L2_IRQ 243 select BRCMSTB_L2_IRQ 244 select IRQ_MIPS_CPU 245 select DMA_NONCOHERENT 246 select SYS_SUPPORTS_32BIT_KERNEL 247 select SYS_SUPPORTS_LITTLE_ENDIAN 248 select SYS_SUPPORTS_BIG_ENDIAN 249 select SYS_SUPPORTS_HIGHMEM 250 select SYS_HAS_CPU_BMIPS32_3300 251 select SYS_HAS_CPU_BMIPS4350 252 select SYS_HAS_CPU_BMIPS4380 253 select SYS_HAS_CPU_BMIPS5000 254 select SWAP_IO_SPACE 255 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 256 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 257 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 258 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 259 select HARDIRQS_SW_RESEND 260 help 261 Build a generic DT-based kernel image that boots on select 262 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 263 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 264 must be set appropriately for your board. 265 266config BCM47XX 267 bool "Broadcom BCM47XX based boards" 268 select BOOT_RAW 269 select CEVT_R4K 270 select CSRC_R4K 271 select DMA_NONCOHERENT 272 select HAVE_PCI 273 select IRQ_MIPS_CPU 274 select SYS_HAS_CPU_MIPS32_R1 275 select NO_EXCEPT_FILL 276 select SYS_SUPPORTS_32BIT_KERNEL 277 select SYS_SUPPORTS_LITTLE_ENDIAN 278 select SYS_SUPPORTS_MIPS16 279 select SYS_SUPPORTS_ZBOOT 280 select SYS_HAS_EARLY_PRINTK 281 select USE_GENERIC_EARLY_PRINTK_8250 282 select GPIOLIB 283 select LEDS_GPIO_REGISTER 284 select BCM47XX_NVRAM 285 select BCM47XX_SPROM 286 select BCM47XX_SSB if !BCM47XX_BCMA 287 help 288 Support for BCM47XX based boards 289 290config BCM63XX 291 bool "Broadcom BCM63XX based boards" 292 select BOOT_RAW 293 select CEVT_R4K 294 select CSRC_R4K 295 select SYNC_R4K 296 select DMA_NONCOHERENT 297 select IRQ_MIPS_CPU 298 select SYS_SUPPORTS_32BIT_KERNEL 299 select SYS_SUPPORTS_BIG_ENDIAN 300 select SYS_HAS_EARLY_PRINTK 301 select SWAP_IO_SPACE 302 select GPIOLIB 303 select HAVE_CLK 304 select MIPS_L1_CACHE_SHIFT_4 305 select CLKDEV_LOOKUP 306 help 307 Support for BCM63XX based boards 308 309config MIPS_COBALT 310 bool "Cobalt Server" 311 select CEVT_R4K 312 select CSRC_R4K 313 select CEVT_GT641XX 314 select DMA_NONCOHERENT 315 select FORCE_PCI 316 select I8253 317 select I8259 318 select IRQ_MIPS_CPU 319 select IRQ_GT641XX 320 select PCI_GT64XXX_PCI0 321 select SYS_HAS_CPU_NEVADA 322 select SYS_HAS_EARLY_PRINTK 323 select SYS_SUPPORTS_32BIT_KERNEL 324 select SYS_SUPPORTS_64BIT_KERNEL 325 select SYS_SUPPORTS_LITTLE_ENDIAN 326 select USE_GENERIC_EARLY_PRINTK_8250 327 328config MACH_DECSTATION 329 bool "DECstations" 330 select BOOT_ELF32 331 select CEVT_DS1287 332 select CEVT_R4K if CPU_R4X00 333 select CSRC_IOASIC 334 select CSRC_R4K if CPU_R4X00 335 select CPU_DADDI_WORKAROUNDS if 64BIT 336 select CPU_R4000_WORKAROUNDS if 64BIT 337 select CPU_R4400_WORKAROUNDS if 64BIT 338 select DMA_NONCOHERENT 339 select NO_IOPORT_MAP 340 select IRQ_MIPS_CPU 341 select SYS_HAS_CPU_R3000 342 select SYS_HAS_CPU_R4X00 343 select SYS_SUPPORTS_32BIT_KERNEL 344 select SYS_SUPPORTS_64BIT_KERNEL 345 select SYS_SUPPORTS_LITTLE_ENDIAN 346 select SYS_SUPPORTS_128HZ 347 select SYS_SUPPORTS_256HZ 348 select SYS_SUPPORTS_1024HZ 349 select MIPS_L1_CACHE_SHIFT_4 350 help 351 This enables support for DEC's MIPS based workstations. For details 352 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 353 DECstation porting pages on <http://decstation.unix-ag.org/>. 354 355 If you have one of the following DECstation Models you definitely 356 want to choose R4xx0 for the CPU Type: 357 358 DECstation 5000/50 359 DECstation 5000/150 360 DECstation 5000/260 361 DECsystem 5900/260 362 363 otherwise choose R3000. 364 365config MACH_JAZZ 366 bool "Jazz family of machines" 367 select ARC_MEMORY 368 select ARC_PROMLIB 369 select ARCH_MIGHT_HAVE_PC_PARPORT 370 select ARCH_MIGHT_HAVE_PC_SERIO 371 select FW_ARC 372 select FW_ARC32 373 select ARCH_MAY_HAVE_PC_FDC 374 select CEVT_R4K 375 select CSRC_R4K 376 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 377 select GENERIC_ISA_DMA 378 select HAVE_PCSPKR_PLATFORM 379 select IRQ_MIPS_CPU 380 select I8253 381 select I8259 382 select ISA 383 select SYS_HAS_CPU_R4X00 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_64BIT_KERNEL 386 select SYS_SUPPORTS_100HZ 387 help 388 This a family of machines based on the MIPS R4030 chipset which was 389 used by several vendors to build RISC/os and Windows NT workstations. 390 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 391 Olivetti M700-10 workstations. 392 393config MACH_INGENIC 394 bool "Ingenic SoC based machines" 395 select SYS_SUPPORTS_32BIT_KERNEL 396 select SYS_SUPPORTS_LITTLE_ENDIAN 397 select SYS_SUPPORTS_ZBOOT_UART16550 398 select CPU_SUPPORTS_HUGEPAGES 399 select DMA_NONCOHERENT 400 select IRQ_MIPS_CPU 401 select PINCTRL 402 select GPIOLIB 403 select COMMON_CLK 404 select GENERIC_IRQ_CHIP 405 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 406 select USE_OF 407 select LIBFDT 408 409config LANTIQ 410 bool "Lantiq based platforms" 411 select DMA_NONCOHERENT 412 select IRQ_MIPS_CPU 413 select CEVT_R4K 414 select CSRC_R4K 415 select SYS_HAS_CPU_MIPS32_R1 416 select SYS_HAS_CPU_MIPS32_R2 417 select SYS_SUPPORTS_BIG_ENDIAN 418 select SYS_SUPPORTS_32BIT_KERNEL 419 select SYS_SUPPORTS_MIPS16 420 select SYS_SUPPORTS_MULTITHREADING 421 select SYS_SUPPORTS_VPE_LOADER 422 select SYS_HAS_EARLY_PRINTK 423 select GPIOLIB 424 select SWAP_IO_SPACE 425 select BOOT_RAW 426 select CLKDEV_LOOKUP 427 select USE_OF 428 select PINCTRL 429 select PINCTRL_LANTIQ 430 select ARCH_HAS_RESET_CONTROLLER 431 select RESET_CONTROLLER 432 433config LASAT 434 bool "LASAT Networks platforms" 435 select CEVT_R4K 436 select CRC32 437 select CSRC_R4K 438 select DMA_NONCOHERENT 439 select SYS_HAS_EARLY_PRINTK 440 select HAVE_PCI 441 select IRQ_MIPS_CPU 442 select PCI_GT64XXX_PCI0 443 select MIPS_NILE4 444 select R5000_CPU_SCACHE 445 select SYS_HAS_CPU_R5000 446 select SYS_SUPPORTS_32BIT_KERNEL 447 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 448 select SYS_SUPPORTS_LITTLE_ENDIAN 449 450config MACH_LOONGSON32 451 bool "Loongson 32-bit family of machines" 452 select SYS_SUPPORTS_ZBOOT 453 help 454 This enables support for the Loongson-1 family of machines. 455 456 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 457 the Institute of Computing Technology (ICT), Chinese Academy of 458 Sciences (CAS). 459 460config MACH_LOONGSON2EF 461 bool "Loongson-2E/F family of machines" 462 select SYS_SUPPORTS_ZBOOT 463 help 464 This enables the support of early Loongson-2E/F family of machines. 465 466config MACH_LOONGSON64 467 bool "Loongson 64-bit family of machines" 468 select ARCH_SPARSEMEM_ENABLE 469 select ARCH_MIGHT_HAVE_PC_PARPORT 470 select ARCH_MIGHT_HAVE_PC_SERIO 471 select GENERIC_ISA_DMA_SUPPORT_BROKEN 472 select BOOT_ELF32 473 select BOARD_SCACHE 474 select CSRC_R4K 475 select CEVT_R4K 476 select CPU_HAS_WB 477 select FORCE_PCI 478 select ISA 479 select I8259 480 select IRQ_MIPS_CPU 481 select NR_CPUS_DEFAULT_4 482 select USE_GENERIC_EARLY_PRINTK_8250 483 select SYS_HAS_CPU_LOONGSON64 484 select SYS_HAS_EARLY_PRINTK 485 select SYS_SUPPORTS_SMP 486 select SYS_SUPPORTS_HOTPLUG_CPU 487 select SYS_SUPPORTS_NUMA 488 select SYS_SUPPORTS_64BIT_KERNEL 489 select SYS_SUPPORTS_HIGHMEM 490 select SYS_SUPPORTS_LITTLE_ENDIAN 491 select SYS_SUPPORTS_ZBOOT 492 select LOONGSON_MC146818 493 select ZONE_DMA32 494 select NUMA 495 help 496 This enables the support of Loongson-2/3 family of machines. 497 498 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 499 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 500 and Loongson-2F which will be removed), developed by the Institute 501 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 502 503config MACH_PISTACHIO 504 bool "IMG Pistachio SoC based boards" 505 select BOOT_ELF32 506 select BOOT_RAW 507 select CEVT_R4K 508 select CLKSRC_MIPS_GIC 509 select COMMON_CLK 510 select CSRC_R4K 511 select DMA_NONCOHERENT 512 select GPIOLIB 513 select IRQ_MIPS_CPU 514 select LIBFDT 515 select MFD_SYSCON 516 select MIPS_CPU_SCACHE 517 select MIPS_GIC 518 select PINCTRL 519 select REGULATOR 520 select SYS_HAS_CPU_MIPS32_R2 521 select SYS_SUPPORTS_32BIT_KERNEL 522 select SYS_SUPPORTS_LITTLE_ENDIAN 523 select SYS_SUPPORTS_MIPS_CPS 524 select SYS_SUPPORTS_MULTITHREADING 525 select SYS_SUPPORTS_RELOCATABLE 526 select SYS_SUPPORTS_ZBOOT 527 select SYS_HAS_EARLY_PRINTK 528 select USE_GENERIC_EARLY_PRINTK_8250 529 select USE_OF 530 help 531 This enables support for the IMG Pistachio SoC platform. 532 533config MIPS_MALTA 534 bool "MIPS Malta board" 535 select ARCH_MAY_HAVE_PC_FDC 536 select ARCH_MIGHT_HAVE_PC_PARPORT 537 select ARCH_MIGHT_HAVE_PC_SERIO 538 select BOOT_ELF32 539 select BOOT_RAW 540 select BUILTIN_DTB 541 select CEVT_R4K 542 select CLKSRC_MIPS_GIC 543 select COMMON_CLK 544 select CSRC_R4K 545 select DMA_MAYBE_COHERENT 546 select GENERIC_ISA_DMA 547 select HAVE_PCSPKR_PLATFORM 548 select HAVE_PCI 549 select I8253 550 select I8259 551 select IRQ_MIPS_CPU 552 select LIBFDT 553 select MIPS_BONITO64 554 select MIPS_CPU_SCACHE 555 select MIPS_GIC 556 select MIPS_L1_CACHE_SHIFT_6 557 select MIPS_MSC 558 select PCI_GT64XXX_PCI0 559 select SMP_UP if SMP 560 select SWAP_IO_SPACE 561 select SYS_HAS_CPU_MIPS32_R1 562 select SYS_HAS_CPU_MIPS32_R2 563 select SYS_HAS_CPU_MIPS32_R3_5 564 select SYS_HAS_CPU_MIPS32_R5 565 select SYS_HAS_CPU_MIPS32_R6 566 select SYS_HAS_CPU_MIPS64_R1 567 select SYS_HAS_CPU_MIPS64_R2 568 select SYS_HAS_CPU_MIPS64_R6 569 select SYS_HAS_CPU_NEVADA 570 select SYS_HAS_CPU_RM7000 571 select SYS_SUPPORTS_32BIT_KERNEL 572 select SYS_SUPPORTS_64BIT_KERNEL 573 select SYS_SUPPORTS_BIG_ENDIAN 574 select SYS_SUPPORTS_HIGHMEM 575 select SYS_SUPPORTS_LITTLE_ENDIAN 576 select SYS_SUPPORTS_MICROMIPS 577 select SYS_SUPPORTS_MIPS16 578 select SYS_SUPPORTS_MIPS_CMP 579 select SYS_SUPPORTS_MIPS_CPS 580 select SYS_SUPPORTS_MULTITHREADING 581 select SYS_SUPPORTS_RELOCATABLE 582 select SYS_SUPPORTS_SMARTMIPS 583 select SYS_SUPPORTS_VPE_LOADER 584 select SYS_SUPPORTS_ZBOOT 585 select USE_OF 586 select ZONE_DMA32 if 64BIT 587 help 588 This enables support for the MIPS Technologies Malta evaluation 589 board. 590 591config MACH_PIC32 592 bool "Microchip PIC32 Family" 593 help 594 This enables support for the Microchip PIC32 family of platforms. 595 596 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 597 microcontrollers. 598 599config NEC_MARKEINS 600 bool "NEC EMMA2RH Mark-eins board" 601 select SOC_EMMA2RH 602 select HAVE_PCI 603 help 604 This enables support for the NEC Electronics Mark-eins boards. 605 606config MACH_VR41XX 607 bool "NEC VR4100 series based machines" 608 select CEVT_R4K 609 select CSRC_R4K 610 select SYS_HAS_CPU_VR41XX 611 select SYS_SUPPORTS_MIPS16 612 select GPIOLIB 613 614config NXP_STB220 615 bool "NXP STB220 board" 616 select SOC_PNX833X 617 help 618 Support for NXP Semiconductors STB220 Development Board. 619 620config NXP_STB225 621 bool "NXP 225 board" 622 select SOC_PNX833X 623 select SOC_PNX8335 624 help 625 Support for NXP Semiconductors STB225 Development Board. 626 627config PMC_MSP 628 bool "PMC-Sierra MSP chipsets" 629 select CEVT_R4K 630 select CSRC_R4K 631 select DMA_NONCOHERENT 632 select SWAP_IO_SPACE 633 select NO_EXCEPT_FILL 634 select BOOT_RAW 635 select SYS_HAS_CPU_MIPS32_R1 636 select SYS_HAS_CPU_MIPS32_R2 637 select SYS_SUPPORTS_32BIT_KERNEL 638 select SYS_SUPPORTS_BIG_ENDIAN 639 select SYS_SUPPORTS_MIPS16 640 select IRQ_MIPS_CPU 641 select SERIAL_8250 642 select SERIAL_8250_CONSOLE 643 select USB_EHCI_BIG_ENDIAN_MMIO 644 select USB_EHCI_BIG_ENDIAN_DESC 645 help 646 This adds support for the PMC-Sierra family of Multi-Service 647 Processor System-On-A-Chips. These parts include a number 648 of integrated peripherals, interfaces and DSPs in addition to 649 a variety of MIPS cores. 650 651config RALINK 652 bool "Ralink based machines" 653 select CEVT_R4K 654 select CSRC_R4K 655 select BOOT_RAW 656 select DMA_NONCOHERENT 657 select IRQ_MIPS_CPU 658 select USE_OF 659 select SYS_HAS_CPU_MIPS32_R1 660 select SYS_HAS_CPU_MIPS32_R2 661 select SYS_SUPPORTS_32BIT_KERNEL 662 select SYS_SUPPORTS_LITTLE_ENDIAN 663 select SYS_SUPPORTS_MIPS16 664 select SYS_HAS_EARLY_PRINTK 665 select CLKDEV_LOOKUP 666 select ARCH_HAS_RESET_CONTROLLER 667 select RESET_CONTROLLER 668 669config SGI_IP22 670 bool "SGI IP22 (Indy/Indigo2)" 671 select ARC_MEMORY 672 select ARC_PROMLIB 673 select FW_ARC 674 select FW_ARC32 675 select ARCH_MIGHT_HAVE_PC_SERIO 676 select BOOT_ELF32 677 select CEVT_R4K 678 select CSRC_R4K 679 select DEFAULT_SGI_PARTITION 680 select DMA_NONCOHERENT 681 select HAVE_EISA 682 select I8253 683 select I8259 684 select IP22_CPU_SCACHE 685 select IRQ_MIPS_CPU 686 select GENERIC_ISA_DMA_SUPPORT_BROKEN 687 select SGI_HAS_I8042 688 select SGI_HAS_INDYDOG 689 select SGI_HAS_HAL2 690 select SGI_HAS_SEEQ 691 select SGI_HAS_WD93 692 select SGI_HAS_ZILOG 693 select SWAP_IO_SPACE 694 select SYS_HAS_CPU_R4X00 695 select SYS_HAS_CPU_R5000 696 select SYS_HAS_EARLY_PRINTK 697 select SYS_SUPPORTS_32BIT_KERNEL 698 select SYS_SUPPORTS_64BIT_KERNEL 699 select SYS_SUPPORTS_BIG_ENDIAN 700 select MIPS_L1_CACHE_SHIFT_7 701 help 702 This are the SGI Indy, Challenge S and Indigo2, as well as certain 703 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 704 that runs on these, say Y here. 705 706config SGI_IP27 707 bool "SGI IP27 (Origin200/2000)" 708 select ARCH_HAS_PHYS_TO_DMA 709 select ARCH_SPARSEMEM_ENABLE 710 select FW_ARC 711 select FW_ARC64 712 select ARC_CMDLINE_ONLY 713 select BOOT_ELF64 714 select DEFAULT_SGI_PARTITION 715 select SYS_HAS_EARLY_PRINTK 716 select HAVE_PCI 717 select IRQ_MIPS_CPU 718 select IRQ_DOMAIN_HIERARCHY 719 select NR_CPUS_DEFAULT_64 720 select PCI_DRIVERS_GENERIC 721 select PCI_XTALK_BRIDGE 722 select SYS_HAS_CPU_R10000 723 select SYS_SUPPORTS_64BIT_KERNEL 724 select SYS_SUPPORTS_BIG_ENDIAN 725 select SYS_SUPPORTS_NUMA 726 select SYS_SUPPORTS_SMP 727 select MIPS_L1_CACHE_SHIFT_7 728 help 729 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 730 workstations. To compile a Linux kernel that runs on these, say Y 731 here. 732 733config SGI_IP28 734 bool "SGI IP28 (Indigo2 R10k)" 735 select ARC_MEMORY 736 select ARC_PROMLIB 737 select FW_ARC 738 select FW_ARC64 739 select ARCH_MIGHT_HAVE_PC_SERIO 740 select BOOT_ELF64 741 select CEVT_R4K 742 select CSRC_R4K 743 select DEFAULT_SGI_PARTITION 744 select DMA_NONCOHERENT 745 select GENERIC_ISA_DMA_SUPPORT_BROKEN 746 select IRQ_MIPS_CPU 747 select HAVE_EISA 748 select I8253 749 select I8259 750 select SGI_HAS_I8042 751 select SGI_HAS_INDYDOG 752 select SGI_HAS_HAL2 753 select SGI_HAS_SEEQ 754 select SGI_HAS_WD93 755 select SGI_HAS_ZILOG 756 select SWAP_IO_SPACE 757 select SYS_HAS_CPU_R10000 758 select SYS_HAS_EARLY_PRINTK 759 select SYS_SUPPORTS_64BIT_KERNEL 760 select SYS_SUPPORTS_BIG_ENDIAN 761 select MIPS_L1_CACHE_SHIFT_7 762 help 763 This is the SGI Indigo2 with R10000 processor. To compile a Linux 764 kernel that runs on these, say Y here. 765 766config SGI_IP30 767 bool "SGI IP30 (Octane/Octane2)" 768 select ARCH_HAS_PHYS_TO_DMA 769 select FW_ARC 770 select FW_ARC64 771 select BOOT_ELF64 772 select CEVT_R4K 773 select CSRC_R4K 774 select SYNC_R4K if SMP 775 select ZONE_DMA32 776 select HAVE_PCI 777 select IRQ_MIPS_CPU 778 select IRQ_DOMAIN_HIERARCHY 779 select NR_CPUS_DEFAULT_2 780 select PCI_DRIVERS_GENERIC 781 select PCI_XTALK_BRIDGE 782 select SYS_HAS_EARLY_PRINTK 783 select SYS_HAS_CPU_R10000 784 select SYS_SUPPORTS_64BIT_KERNEL 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_SMP 787 select MIPS_L1_CACHE_SHIFT_7 788 select ARC_MEMORY 789 help 790 These are the SGI Octane and Octane2 graphics workstations. To 791 compile a Linux kernel that runs on these, say Y here. 792 793config SGI_IP32 794 bool "SGI IP32 (O2)" 795 select ARC_MEMORY 796 select ARC_PROMLIB 797 select ARCH_HAS_PHYS_TO_DMA 798 select FW_ARC 799 select FW_ARC32 800 select BOOT_ELF32 801 select CEVT_R4K 802 select CSRC_R4K 803 select DMA_NONCOHERENT 804 select HAVE_PCI 805 select IRQ_MIPS_CPU 806 select R5000_CPU_SCACHE 807 select RM7000_CPU_SCACHE 808 select SYS_HAS_CPU_R5000 809 select SYS_HAS_CPU_R10000 if BROKEN 810 select SYS_HAS_CPU_RM7000 811 select SYS_HAS_CPU_NEVADA 812 select SYS_SUPPORTS_64BIT_KERNEL 813 select SYS_SUPPORTS_BIG_ENDIAN 814 help 815 If you want this kernel to run on SGI O2 workstation, say Y here. 816 817config SIBYTE_CRHINE 818 bool "Sibyte BCM91120C-CRhine" 819 select BOOT_ELF32 820 select SIBYTE_BCM1120 821 select SWAP_IO_SPACE 822 select SYS_HAS_CPU_SB1 823 select SYS_SUPPORTS_BIG_ENDIAN 824 select SYS_SUPPORTS_LITTLE_ENDIAN 825 826config SIBYTE_CARMEL 827 bool "Sibyte BCM91120x-Carmel" 828 select BOOT_ELF32 829 select SIBYTE_BCM1120 830 select SWAP_IO_SPACE 831 select SYS_HAS_CPU_SB1 832 select SYS_SUPPORTS_BIG_ENDIAN 833 select SYS_SUPPORTS_LITTLE_ENDIAN 834 835config SIBYTE_CRHONE 836 bool "Sibyte BCM91125C-CRhone" 837 select BOOT_ELF32 838 select SIBYTE_BCM1125 839 select SWAP_IO_SPACE 840 select SYS_HAS_CPU_SB1 841 select SYS_SUPPORTS_BIG_ENDIAN 842 select SYS_SUPPORTS_HIGHMEM 843 select SYS_SUPPORTS_LITTLE_ENDIAN 844 845config SIBYTE_RHONE 846 bool "Sibyte BCM91125E-Rhone" 847 select BOOT_ELF32 848 select SIBYTE_BCM1125H 849 select SWAP_IO_SPACE 850 select SYS_HAS_CPU_SB1 851 select SYS_SUPPORTS_BIG_ENDIAN 852 select SYS_SUPPORTS_LITTLE_ENDIAN 853 854config SIBYTE_SWARM 855 bool "Sibyte BCM91250A-SWARM" 856 select BOOT_ELF32 857 select HAVE_PATA_PLATFORM 858 select SIBYTE_SB1250 859 select SWAP_IO_SPACE 860 select SYS_HAS_CPU_SB1 861 select SYS_SUPPORTS_BIG_ENDIAN 862 select SYS_SUPPORTS_HIGHMEM 863 select SYS_SUPPORTS_LITTLE_ENDIAN 864 select ZONE_DMA32 if 64BIT 865 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 866 867config SIBYTE_LITTLESUR 868 bool "Sibyte BCM91250C2-LittleSur" 869 select BOOT_ELF32 870 select HAVE_PATA_PLATFORM 871 select SIBYTE_SB1250 872 select SWAP_IO_SPACE 873 select SYS_HAS_CPU_SB1 874 select SYS_SUPPORTS_BIG_ENDIAN 875 select SYS_SUPPORTS_HIGHMEM 876 select SYS_SUPPORTS_LITTLE_ENDIAN 877 select ZONE_DMA32 if 64BIT 878 879config SIBYTE_SENTOSA 880 bool "Sibyte BCM91250E-Sentosa" 881 select BOOT_ELF32 882 select SIBYTE_SB1250 883 select SWAP_IO_SPACE 884 select SYS_HAS_CPU_SB1 885 select SYS_SUPPORTS_BIG_ENDIAN 886 select SYS_SUPPORTS_LITTLE_ENDIAN 887 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 888 889config SIBYTE_BIGSUR 890 bool "Sibyte BCM91480B-BigSur" 891 select BOOT_ELF32 892 select NR_CPUS_DEFAULT_4 893 select SIBYTE_BCM1x80 894 select SWAP_IO_SPACE 895 select SYS_HAS_CPU_SB1 896 select SYS_SUPPORTS_BIG_ENDIAN 897 select SYS_SUPPORTS_HIGHMEM 898 select SYS_SUPPORTS_LITTLE_ENDIAN 899 select ZONE_DMA32 if 64BIT 900 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 901 902config SNI_RM 903 bool "SNI RM200/300/400" 904 select ARC_MEMORY 905 select ARC_PROMLIB 906 select FW_ARC if CPU_LITTLE_ENDIAN 907 select FW_ARC32 if CPU_LITTLE_ENDIAN 908 select FW_SNIPROM if CPU_BIG_ENDIAN 909 select ARCH_MAY_HAVE_PC_FDC 910 select ARCH_MIGHT_HAVE_PC_PARPORT 911 select ARCH_MIGHT_HAVE_PC_SERIO 912 select BOOT_ELF32 913 select CEVT_R4K 914 select CSRC_R4K 915 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 916 select DMA_NONCOHERENT 917 select GENERIC_ISA_DMA 918 select HAVE_EISA 919 select HAVE_PCSPKR_PLATFORM 920 select HAVE_PCI 921 select IRQ_MIPS_CPU 922 select I8253 923 select I8259 924 select ISA 925 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 926 select SYS_HAS_CPU_R4X00 927 select SYS_HAS_CPU_R5000 928 select SYS_HAS_CPU_R10000 929 select R5000_CPU_SCACHE 930 select SYS_HAS_EARLY_PRINTK 931 select SYS_SUPPORTS_32BIT_KERNEL 932 select SYS_SUPPORTS_64BIT_KERNEL 933 select SYS_SUPPORTS_BIG_ENDIAN 934 select SYS_SUPPORTS_HIGHMEM 935 select SYS_SUPPORTS_LITTLE_ENDIAN 936 help 937 The SNI RM200/300/400 are MIPS-based machines manufactured by 938 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 939 Technology and now in turn merged with Fujitsu. Say Y here to 940 support this machine type. 941 942config MACH_TX39XX 943 bool "Toshiba TX39 series based machines" 944 945config MACH_TX49XX 946 bool "Toshiba TX49 series based machines" 947 948config MIKROTIK_RB532 949 bool "Mikrotik RB532 boards" 950 select CEVT_R4K 951 select CSRC_R4K 952 select DMA_NONCOHERENT 953 select HAVE_PCI 954 select IRQ_MIPS_CPU 955 select SYS_HAS_CPU_MIPS32_R1 956 select SYS_SUPPORTS_32BIT_KERNEL 957 select SYS_SUPPORTS_LITTLE_ENDIAN 958 select SWAP_IO_SPACE 959 select BOOT_RAW 960 select GPIOLIB 961 select MIPS_L1_CACHE_SHIFT_4 962 help 963 Support the Mikrotik(tm) RouterBoard 532 series, 964 based on the IDT RC32434 SoC. 965 966config CAVIUM_OCTEON_SOC 967 bool "Cavium Networks Octeon SoC based boards" 968 select CEVT_R4K 969 select ARCH_HAS_PHYS_TO_DMA 970 select HAVE_RAPIDIO 971 select PHYS_ADDR_T_64BIT 972 select SYS_SUPPORTS_64BIT_KERNEL 973 select SYS_SUPPORTS_BIG_ENDIAN 974 select EDAC_SUPPORT 975 select EDAC_ATOMIC_SCRUB 976 select SYS_SUPPORTS_LITTLE_ENDIAN 977 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 978 select SYS_HAS_EARLY_PRINTK 979 select SYS_HAS_CPU_CAVIUM_OCTEON 980 select HAVE_PCI 981 select ZONE_DMA32 982 select HOLES_IN_ZONE 983 select GPIOLIB 984 select LIBFDT 985 select USE_OF 986 select ARCH_SPARSEMEM_ENABLE 987 select SYS_SUPPORTS_SMP 988 select NR_CPUS_DEFAULT_64 989 select MIPS_NR_CPU_NR_MAP_1024 990 select BUILTIN_DTB 991 select MTD_COMPLEX_MAPPINGS 992 select SWIOTLB 993 select SYS_SUPPORTS_RELOCATABLE 994 help 995 This option supports all of the Octeon reference boards from Cavium 996 Networks. It builds a kernel that dynamically determines the Octeon 997 CPU type and supports all known board reference implementations. 998 Some of the supported boards are: 999 EBT3000 1000 EBH3000 1001 EBH3100 1002 Thunder 1003 Kodama 1004 Hikari 1005 Say Y here for most Octeon reference boards. 1006 1007config NLM_XLR_BOARD 1008 bool "Netlogic XLR/XLS based systems" 1009 select BOOT_ELF32 1010 select NLM_COMMON 1011 select SYS_HAS_CPU_XLR 1012 select SYS_SUPPORTS_SMP 1013 select HAVE_PCI 1014 select SWAP_IO_SPACE 1015 select SYS_SUPPORTS_32BIT_KERNEL 1016 select SYS_SUPPORTS_64BIT_KERNEL 1017 select PHYS_ADDR_T_64BIT 1018 select SYS_SUPPORTS_BIG_ENDIAN 1019 select SYS_SUPPORTS_HIGHMEM 1020 select NR_CPUS_DEFAULT_32 1021 select CEVT_R4K 1022 select CSRC_R4K 1023 select IRQ_MIPS_CPU 1024 select ZONE_DMA32 if 64BIT 1025 select SYNC_R4K 1026 select SYS_HAS_EARLY_PRINTK 1027 select SYS_SUPPORTS_ZBOOT 1028 select SYS_SUPPORTS_ZBOOT_UART16550 1029 help 1030 Support for systems based on Netlogic XLR and XLS processors. 1031 Say Y here if you have a XLR or XLS based board. 1032 1033config NLM_XLP_BOARD 1034 bool "Netlogic XLP based systems" 1035 select BOOT_ELF32 1036 select NLM_COMMON 1037 select SYS_HAS_CPU_XLP 1038 select SYS_SUPPORTS_SMP 1039 select HAVE_PCI 1040 select SYS_SUPPORTS_32BIT_KERNEL 1041 select SYS_SUPPORTS_64BIT_KERNEL 1042 select PHYS_ADDR_T_64BIT 1043 select GPIOLIB 1044 select SYS_SUPPORTS_BIG_ENDIAN 1045 select SYS_SUPPORTS_LITTLE_ENDIAN 1046 select SYS_SUPPORTS_HIGHMEM 1047 select NR_CPUS_DEFAULT_32 1048 select CEVT_R4K 1049 select CSRC_R4K 1050 select IRQ_MIPS_CPU 1051 select ZONE_DMA32 if 64BIT 1052 select SYNC_R4K 1053 select SYS_HAS_EARLY_PRINTK 1054 select USE_OF 1055 select SYS_SUPPORTS_ZBOOT 1056 select SYS_SUPPORTS_ZBOOT_UART16550 1057 help 1058 This board is based on Netlogic XLP Processor. 1059 Say Y here if you have a XLP based board. 1060 1061config MIPS_PARAVIRT 1062 bool "Para-Virtualized guest system" 1063 select CEVT_R4K 1064 select CSRC_R4K 1065 select SYS_SUPPORTS_64BIT_KERNEL 1066 select SYS_SUPPORTS_32BIT_KERNEL 1067 select SYS_SUPPORTS_BIG_ENDIAN 1068 select SYS_SUPPORTS_SMP 1069 select NR_CPUS_DEFAULT_4 1070 select SYS_HAS_EARLY_PRINTK 1071 select SYS_HAS_CPU_MIPS32_R2 1072 select SYS_HAS_CPU_MIPS64_R2 1073 select SYS_HAS_CPU_CAVIUM_OCTEON 1074 select HAVE_PCI 1075 select SWAP_IO_SPACE 1076 help 1077 This option supports guest running under ???? 1078 1079endchoice 1080 1081source "arch/mips/alchemy/Kconfig" 1082source "arch/mips/ath25/Kconfig" 1083source "arch/mips/ath79/Kconfig" 1084source "arch/mips/bcm47xx/Kconfig" 1085source "arch/mips/bcm63xx/Kconfig" 1086source "arch/mips/bmips/Kconfig" 1087source "arch/mips/generic/Kconfig" 1088source "arch/mips/jazz/Kconfig" 1089source "arch/mips/jz4740/Kconfig" 1090source "arch/mips/lantiq/Kconfig" 1091source "arch/mips/lasat/Kconfig" 1092source "arch/mips/pic32/Kconfig" 1093source "arch/mips/pistachio/Kconfig" 1094source "arch/mips/pmcs-msp71xx/Kconfig" 1095source "arch/mips/ralink/Kconfig" 1096source "arch/mips/sgi-ip27/Kconfig" 1097source "arch/mips/sibyte/Kconfig" 1098source "arch/mips/txx9/Kconfig" 1099source "arch/mips/vr41xx/Kconfig" 1100source "arch/mips/cavium-octeon/Kconfig" 1101source "arch/mips/loongson2ef/Kconfig" 1102source "arch/mips/loongson32/Kconfig" 1103source "arch/mips/loongson64/Kconfig" 1104source "arch/mips/netlogic/Kconfig" 1105source "arch/mips/paravirt/Kconfig" 1106 1107endmenu 1108 1109config GENERIC_HWEIGHT 1110 bool 1111 default y 1112 1113config GENERIC_CALIBRATE_DELAY 1114 bool 1115 default y 1116 1117config SCHED_OMIT_FRAME_POINTER 1118 bool 1119 default y 1120 1121# 1122# Select some configuration options automatically based on user selections. 1123# 1124config FW_ARC 1125 bool 1126 1127config ARCH_MAY_HAVE_PC_FDC 1128 bool 1129 1130config BOOT_RAW 1131 bool 1132 1133config CEVT_BCM1480 1134 bool 1135 1136config CEVT_DS1287 1137 bool 1138 1139config CEVT_GT641XX 1140 bool 1141 1142config CEVT_R4K 1143 bool 1144 1145config CEVT_SB1250 1146 bool 1147 1148config CEVT_TXX9 1149 bool 1150 1151config CSRC_BCM1480 1152 bool 1153 1154config CSRC_IOASIC 1155 bool 1156 1157config CSRC_R4K 1158 bool 1159 1160config CSRC_SB1250 1161 bool 1162 1163config MIPS_CLOCK_VSYSCALL 1164 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1165 1166config GPIO_TXX9 1167 select GPIOLIB 1168 bool 1169 1170config FW_CFE 1171 bool 1172 1173config ARCH_SUPPORTS_UPROBES 1174 bool 1175 1176config DMA_MAYBE_COHERENT 1177 select ARCH_HAS_DMA_COHERENCE_H 1178 select DMA_NONCOHERENT 1179 bool 1180 1181config DMA_PERDEV_COHERENT 1182 bool 1183 select ARCH_HAS_SETUP_DMA_OPS 1184 select DMA_NONCOHERENT 1185 1186config DMA_NONCOHERENT 1187 bool 1188 # 1189 # MIPS allows mixing "slightly different" Cacheability and Coherency 1190 # Attribute bits. It is believed that the uncached access through 1191 # KSEG1 and the implementation specific "uncached accelerated" used 1192 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1193 # significant advantages. 1194 # 1195 select ARCH_HAS_DMA_WRITE_COMBINE 1196 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1197 select ARCH_HAS_UNCACHED_SEGMENT 1198 select DMA_NONCOHERENT_MMAP 1199 select DMA_NONCOHERENT_CACHE_SYNC 1200 select NEED_DMA_MAP_STATE 1201 1202config SYS_HAS_EARLY_PRINTK 1203 bool 1204 1205config SYS_SUPPORTS_HOTPLUG_CPU 1206 bool 1207 1208config MIPS_BONITO64 1209 bool 1210 1211config MIPS_MSC 1212 bool 1213 1214config MIPS_NILE4 1215 bool 1216 1217config SYNC_R4K 1218 bool 1219 1220config MIPS_MACHINE 1221 def_bool n 1222 1223config NO_IOPORT_MAP 1224 def_bool n 1225 1226config GENERIC_CSUM 1227 bool 1228 default y if !CPU_HAS_LOAD_STORE_LR 1229 1230config GENERIC_ISA_DMA 1231 bool 1232 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1233 select ISA_DMA_API 1234 1235config GENERIC_ISA_DMA_SUPPORT_BROKEN 1236 bool 1237 select GENERIC_ISA_DMA 1238 1239config ISA_DMA_API 1240 bool 1241 1242config HOLES_IN_ZONE 1243 bool 1244 1245config SYS_SUPPORTS_RELOCATABLE 1246 bool 1247 help 1248 Selected if the platform supports relocating the kernel. 1249 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1250 to allow access to command line and entropy sources. 1251 1252config MIPS_CBPF_JIT 1253 def_bool y 1254 depends on BPF_JIT && HAVE_CBPF_JIT 1255 1256config MIPS_EBPF_JIT 1257 def_bool y 1258 depends on BPF_JIT && HAVE_EBPF_JIT 1259 1260 1261# 1262# Endianness selection. Sufficiently obscure so many users don't know what to 1263# answer,so we try hard to limit the available choices. Also the use of a 1264# choice statement should be more obvious to the user. 1265# 1266choice 1267 prompt "Endianness selection" 1268 help 1269 Some MIPS machines can be configured for either little or big endian 1270 byte order. These modes require different kernels and a different 1271 Linux distribution. In general there is one preferred byteorder for a 1272 particular system but some systems are just as commonly used in the 1273 one or the other endianness. 1274 1275config CPU_BIG_ENDIAN 1276 bool "Big endian" 1277 depends on SYS_SUPPORTS_BIG_ENDIAN 1278 1279config CPU_LITTLE_ENDIAN 1280 bool "Little endian" 1281 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1282 1283endchoice 1284 1285config EXPORT_UASM 1286 bool 1287 1288config SYS_SUPPORTS_APM_EMULATION 1289 bool 1290 1291config SYS_SUPPORTS_BIG_ENDIAN 1292 bool 1293 1294config SYS_SUPPORTS_LITTLE_ENDIAN 1295 bool 1296 1297config SYS_SUPPORTS_HUGETLBFS 1298 bool 1299 depends on CPU_SUPPORTS_HUGEPAGES 1300 default y 1301 1302config MIPS_HUGE_TLB_SUPPORT 1303 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1304 1305config IRQ_CPU_RM7K 1306 bool 1307 1308config IRQ_MSP_SLP 1309 bool 1310 1311config IRQ_MSP_CIC 1312 bool 1313 1314config IRQ_TXX9 1315 bool 1316 1317config IRQ_GT641XX 1318 bool 1319 1320config PCI_GT64XXX_PCI0 1321 bool 1322 1323config PCI_XTALK_BRIDGE 1324 bool 1325 1326config NO_EXCEPT_FILL 1327 bool 1328 1329config SOC_EMMA2RH 1330 bool 1331 select CEVT_R4K 1332 select CSRC_R4K 1333 select DMA_NONCOHERENT 1334 select IRQ_MIPS_CPU 1335 select SWAP_IO_SPACE 1336 select SYS_HAS_CPU_R5500 1337 select SYS_SUPPORTS_32BIT_KERNEL 1338 select SYS_SUPPORTS_64BIT_KERNEL 1339 select SYS_SUPPORTS_BIG_ENDIAN 1340 1341config SOC_PNX833X 1342 bool 1343 select CEVT_R4K 1344 select CSRC_R4K 1345 select IRQ_MIPS_CPU 1346 select DMA_NONCOHERENT 1347 select SYS_HAS_CPU_MIPS32_R2 1348 select SYS_SUPPORTS_32BIT_KERNEL 1349 select SYS_SUPPORTS_LITTLE_ENDIAN 1350 select SYS_SUPPORTS_BIG_ENDIAN 1351 select SYS_SUPPORTS_MIPS16 1352 select CPU_MIPSR2_IRQ_VI 1353 1354config SOC_PNX8335 1355 bool 1356 select SOC_PNX833X 1357 1358config MIPS_SPRAM 1359 bool 1360 1361config SWAP_IO_SPACE 1362 bool 1363 1364config SGI_HAS_INDYDOG 1365 bool 1366 1367config SGI_HAS_HAL2 1368 bool 1369 1370config SGI_HAS_SEEQ 1371 bool 1372 1373config SGI_HAS_WD93 1374 bool 1375 1376config SGI_HAS_ZILOG 1377 bool 1378 1379config SGI_HAS_I8042 1380 bool 1381 1382config DEFAULT_SGI_PARTITION 1383 bool 1384 1385config FW_ARC32 1386 bool 1387 1388config FW_SNIPROM 1389 bool 1390 1391config BOOT_ELF32 1392 bool 1393 1394config MIPS_L1_CACHE_SHIFT_4 1395 bool 1396 1397config MIPS_L1_CACHE_SHIFT_5 1398 bool 1399 1400config MIPS_L1_CACHE_SHIFT_6 1401 bool 1402 1403config MIPS_L1_CACHE_SHIFT_7 1404 bool 1405 1406config MIPS_L1_CACHE_SHIFT 1407 int 1408 default "7" if MIPS_L1_CACHE_SHIFT_7 1409 default "6" if MIPS_L1_CACHE_SHIFT_6 1410 default "5" if MIPS_L1_CACHE_SHIFT_5 1411 default "4" if MIPS_L1_CACHE_SHIFT_4 1412 default "5" 1413 1414config HAVE_STD_PC_SERIAL_PORT 1415 bool 1416 1417config ARC_CMDLINE_ONLY 1418 bool 1419 1420config ARC_CONSOLE 1421 bool "ARC console support" 1422 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1423 1424config ARC_MEMORY 1425 bool 1426 1427config ARC_PROMLIB 1428 bool 1429 1430config FW_ARC64 1431 bool 1432 1433config BOOT_ELF64 1434 bool 1435 1436menu "CPU selection" 1437 1438choice 1439 prompt "CPU type" 1440 default CPU_R4X00 1441 1442config CPU_LOONGSON64 1443 bool "Loongson 64-bit CPU" 1444 depends on SYS_HAS_CPU_LOONGSON64 1445 select ARCH_HAS_PHYS_TO_DMA 1446 select CPU_SUPPORTS_64BIT_KERNEL 1447 select CPU_SUPPORTS_HIGHMEM 1448 select CPU_SUPPORTS_HUGEPAGES 1449 select CPU_SUPPORTS_MSA 1450 select CPU_HAS_LOAD_STORE_LR 1451 select WEAK_ORDERING 1452 select WEAK_REORDERING_BEYOND_LLSC 1453 select MIPS_ASID_BITS_VARIABLE 1454 select MIPS_PGD_C0_CONTEXT 1455 select MIPS_L1_CACHE_SHIFT_6 1456 select GPIOLIB 1457 select SWIOTLB 1458 help 1459 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1460 cores implements the MIPS64R2 instruction set with many extensions, 1461 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1462 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1463 Loongson-2E/2F is not covered here and will be removed in future. 1464 1465config LOONGSON3_ENHANCEMENT 1466 bool "New Loongson-3 CPU Enhancements" 1467 default n 1468 select CPU_MIPSR2 1469 select CPU_HAS_PREFETCH 1470 depends on CPU_LOONGSON64 1471 help 1472 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1473 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1474 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1475 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1476 Fast TLB refill support, etc. 1477 1478 This option enable those enhancements which are not probed at run 1479 time. If you want a generic kernel to run on all Loongson 3 machines, 1480 please say 'N' here. If you want a high-performance kernel to run on 1481 new Loongson-3 machines only, please say 'Y' here. 1482 1483config CPU_LOONGSON3_WORKAROUNDS 1484 bool "Old Loongson-3 LLSC Workarounds" 1485 default y if SMP 1486 depends on CPU_LOONGSON64 1487 help 1488 Loongson-3 processors have the llsc issues which require workarounds. 1489 Without workarounds the system may hang unexpectedly. 1490 1491 Newer Loongson-3 will fix these issues and no workarounds are needed. 1492 The workarounds have no significant side effect on them but may 1493 decrease the performance of the system so this option should be 1494 disabled unless the kernel is intended to be run on old systems. 1495 1496 If unsure, please say Y. 1497 1498config CPU_LOONGSON2E 1499 bool "Loongson 2E" 1500 depends on SYS_HAS_CPU_LOONGSON2E 1501 select CPU_LOONGSON2EF 1502 help 1503 The Loongson 2E processor implements the MIPS III instruction set 1504 with many extensions. 1505 1506 It has an internal FPGA northbridge, which is compatible to 1507 bonito64. 1508 1509config CPU_LOONGSON2F 1510 bool "Loongson 2F" 1511 depends on SYS_HAS_CPU_LOONGSON2F 1512 select CPU_LOONGSON2EF 1513 select GPIOLIB 1514 help 1515 The Loongson 2F processor implements the MIPS III instruction set 1516 with many extensions. 1517 1518 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1519 have a similar programming interface with FPGA northbridge used in 1520 Loongson2E. 1521 1522config CPU_LOONGSON1B 1523 bool "Loongson 1B" 1524 depends on SYS_HAS_CPU_LOONGSON1B 1525 select CPU_LOONGSON32 1526 select LEDS_GPIO_REGISTER 1527 help 1528 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1529 Release 1 instruction set and part of the MIPS32 Release 2 1530 instruction set. 1531 1532config CPU_LOONGSON1C 1533 bool "Loongson 1C" 1534 depends on SYS_HAS_CPU_LOONGSON1C 1535 select CPU_LOONGSON32 1536 select LEDS_GPIO_REGISTER 1537 help 1538 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1539 Release 1 instruction set and part of the MIPS32 Release 2 1540 instruction set. 1541 1542config CPU_MIPS32_R1 1543 bool "MIPS32 Release 1" 1544 depends on SYS_HAS_CPU_MIPS32_R1 1545 select CPU_HAS_PREFETCH 1546 select CPU_HAS_LOAD_STORE_LR 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_HIGHMEM 1549 help 1550 Choose this option to build a kernel for release 1 or later of the 1551 MIPS32 architecture. Most modern embedded systems with a 32-bit 1552 MIPS processor are based on a MIPS32 processor. If you know the 1553 specific type of processor in your system, choose those that one 1554 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1555 Release 2 of the MIPS32 architecture is available since several 1556 years so chances are you even have a MIPS32 Release 2 processor 1557 in which case you should choose CPU_MIPS32_R2 instead for better 1558 performance. 1559 1560config CPU_MIPS32_R2 1561 bool "MIPS32 Release 2" 1562 depends on SYS_HAS_CPU_MIPS32_R2 1563 select CPU_HAS_PREFETCH 1564 select CPU_HAS_LOAD_STORE_LR 1565 select CPU_SUPPORTS_32BIT_KERNEL 1566 select CPU_SUPPORTS_HIGHMEM 1567 select CPU_SUPPORTS_MSA 1568 select HAVE_KVM 1569 help 1570 Choose this option to build a kernel for release 2 or later of the 1571 MIPS32 architecture. Most modern embedded systems with a 32-bit 1572 MIPS processor are based on a MIPS32 processor. If you know the 1573 specific type of processor in your system, choose those that one 1574 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1575 1576config CPU_MIPS32_R6 1577 bool "MIPS32 Release 6" 1578 depends on SYS_HAS_CPU_MIPS32_R6 1579 select CPU_HAS_PREFETCH 1580 select CPU_SUPPORTS_32BIT_KERNEL 1581 select CPU_SUPPORTS_HIGHMEM 1582 select CPU_SUPPORTS_MSA 1583 select HAVE_KVM 1584 select MIPS_O32_FP64_SUPPORT 1585 help 1586 Choose this option to build a kernel for release 6 or later of the 1587 MIPS32 architecture. New MIPS processors, starting with the Warrior 1588 family, are based on a MIPS32r6 processor. If you own an older 1589 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1590 1591config CPU_MIPS64_R1 1592 bool "MIPS64 Release 1" 1593 depends on SYS_HAS_CPU_MIPS64_R1 1594 select CPU_HAS_PREFETCH 1595 select CPU_HAS_LOAD_STORE_LR 1596 select CPU_SUPPORTS_32BIT_KERNEL 1597 select CPU_SUPPORTS_64BIT_KERNEL 1598 select CPU_SUPPORTS_HIGHMEM 1599 select CPU_SUPPORTS_HUGEPAGES 1600 help 1601 Choose this option to build a kernel for release 1 or later of the 1602 MIPS64 architecture. Many modern embedded systems with a 64-bit 1603 MIPS processor are based on a MIPS64 processor. If you know the 1604 specific type of processor in your system, choose those that one 1605 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1606 Release 2 of the MIPS64 architecture is available since several 1607 years so chances are you even have a MIPS64 Release 2 processor 1608 in which case you should choose CPU_MIPS64_R2 instead for better 1609 performance. 1610 1611config CPU_MIPS64_R2 1612 bool "MIPS64 Release 2" 1613 depends on SYS_HAS_CPU_MIPS64_R2 1614 select CPU_HAS_PREFETCH 1615 select CPU_HAS_LOAD_STORE_LR 1616 select CPU_SUPPORTS_32BIT_KERNEL 1617 select CPU_SUPPORTS_64BIT_KERNEL 1618 select CPU_SUPPORTS_HIGHMEM 1619 select CPU_SUPPORTS_HUGEPAGES 1620 select CPU_SUPPORTS_MSA 1621 select HAVE_KVM 1622 help 1623 Choose this option to build a kernel for release 2 or later of the 1624 MIPS64 architecture. Many modern embedded systems with a 64-bit 1625 MIPS processor are based on a MIPS64 processor. If you know the 1626 specific type of processor in your system, choose those that one 1627 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1628 1629config CPU_MIPS64_R6 1630 bool "MIPS64 Release 6" 1631 depends on SYS_HAS_CPU_MIPS64_R6 1632 select CPU_HAS_PREFETCH 1633 select CPU_SUPPORTS_32BIT_KERNEL 1634 select CPU_SUPPORTS_64BIT_KERNEL 1635 select CPU_SUPPORTS_HIGHMEM 1636 select CPU_SUPPORTS_HUGEPAGES 1637 select CPU_SUPPORTS_MSA 1638 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1639 select HAVE_KVM 1640 help 1641 Choose this option to build a kernel for release 6 or later of the 1642 MIPS64 architecture. New MIPS processors, starting with the Warrior 1643 family, are based on a MIPS64r6 processor. If you own an older 1644 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1645 1646config CPU_R3000 1647 bool "R3000" 1648 depends on SYS_HAS_CPU_R3000 1649 select CPU_HAS_WB 1650 select CPU_HAS_LOAD_STORE_LR 1651 select CPU_R3K_TLB 1652 select CPU_SUPPORTS_32BIT_KERNEL 1653 select CPU_SUPPORTS_HIGHMEM 1654 help 1655 Please make sure to pick the right CPU type. Linux/MIPS is not 1656 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1657 *not* work on R4000 machines and vice versa. However, since most 1658 of the supported machines have an R4000 (or similar) CPU, R4x00 1659 might be a safe bet. If the resulting kernel does not work, 1660 try to recompile with R3000. 1661 1662config CPU_TX39XX 1663 bool "R39XX" 1664 depends on SYS_HAS_CPU_TX39XX 1665 select CPU_SUPPORTS_32BIT_KERNEL 1666 select CPU_HAS_LOAD_STORE_LR 1667 select CPU_R3K_TLB 1668 1669config CPU_VR41XX 1670 bool "R41xx" 1671 depends on SYS_HAS_CPU_VR41XX 1672 select CPU_SUPPORTS_32BIT_KERNEL 1673 select CPU_SUPPORTS_64BIT_KERNEL 1674 select CPU_HAS_LOAD_STORE_LR 1675 help 1676 The options selects support for the NEC VR4100 series of processors. 1677 Only choose this option if you have one of these processors as a 1678 kernel built with this option will not run on any other type of 1679 processor or vice versa. 1680 1681config CPU_R4X00 1682 bool "R4x00" 1683 depends on SYS_HAS_CPU_R4X00 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HUGEPAGES 1687 select CPU_HAS_LOAD_STORE_LR 1688 help 1689 MIPS Technologies R4000-series processors other than 4300, including 1690 the R4000, R4400, R4600, and 4700. 1691 1692config CPU_TX49XX 1693 bool "R49XX" 1694 depends on SYS_HAS_CPU_TX49XX 1695 select CPU_HAS_PREFETCH 1696 select CPU_HAS_LOAD_STORE_LR 1697 select CPU_SUPPORTS_32BIT_KERNEL 1698 select CPU_SUPPORTS_64BIT_KERNEL 1699 select CPU_SUPPORTS_HUGEPAGES 1700 1701config CPU_R5000 1702 bool "R5000" 1703 depends on SYS_HAS_CPU_R5000 1704 select CPU_SUPPORTS_32BIT_KERNEL 1705 select CPU_SUPPORTS_64BIT_KERNEL 1706 select CPU_SUPPORTS_HUGEPAGES 1707 select CPU_HAS_LOAD_STORE_LR 1708 help 1709 MIPS Technologies R5000-series processors other than the Nevada. 1710 1711config CPU_R5500 1712 bool "R5500" 1713 depends on SYS_HAS_CPU_R5500 1714 select CPU_SUPPORTS_32BIT_KERNEL 1715 select CPU_SUPPORTS_64BIT_KERNEL 1716 select CPU_SUPPORTS_HUGEPAGES 1717 select CPU_HAS_LOAD_STORE_LR 1718 help 1719 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1720 instruction set. 1721 1722config CPU_NEVADA 1723 bool "RM52xx" 1724 depends on SYS_HAS_CPU_NEVADA 1725 select CPU_SUPPORTS_32BIT_KERNEL 1726 select CPU_SUPPORTS_64BIT_KERNEL 1727 select CPU_SUPPORTS_HUGEPAGES 1728 select CPU_HAS_LOAD_STORE_LR 1729 help 1730 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1731 1732config CPU_R10000 1733 bool "R10000" 1734 depends on SYS_HAS_CPU_R10000 1735 select CPU_HAS_PREFETCH 1736 select CPU_HAS_LOAD_STORE_LR 1737 select CPU_SUPPORTS_32BIT_KERNEL 1738 select CPU_SUPPORTS_64BIT_KERNEL 1739 select CPU_SUPPORTS_HIGHMEM 1740 select CPU_SUPPORTS_HUGEPAGES 1741 help 1742 MIPS Technologies R10000-series processors. 1743 1744config CPU_RM7000 1745 bool "RM7000" 1746 depends on SYS_HAS_CPU_RM7000 1747 select CPU_HAS_PREFETCH 1748 select CPU_HAS_LOAD_STORE_LR 1749 select CPU_SUPPORTS_32BIT_KERNEL 1750 select CPU_SUPPORTS_64BIT_KERNEL 1751 select CPU_SUPPORTS_HIGHMEM 1752 select CPU_SUPPORTS_HUGEPAGES 1753 1754config CPU_SB1 1755 bool "SB1" 1756 depends on SYS_HAS_CPU_SB1 1757 select CPU_HAS_LOAD_STORE_LR 1758 select CPU_SUPPORTS_32BIT_KERNEL 1759 select CPU_SUPPORTS_64BIT_KERNEL 1760 select CPU_SUPPORTS_HIGHMEM 1761 select CPU_SUPPORTS_HUGEPAGES 1762 select WEAK_ORDERING 1763 1764config CPU_CAVIUM_OCTEON 1765 bool "Cavium Octeon processor" 1766 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1767 select CPU_HAS_PREFETCH 1768 select CPU_HAS_LOAD_STORE_LR 1769 select CPU_SUPPORTS_64BIT_KERNEL 1770 select WEAK_ORDERING 1771 select CPU_SUPPORTS_HIGHMEM 1772 select CPU_SUPPORTS_HUGEPAGES 1773 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1774 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1775 select MIPS_L1_CACHE_SHIFT_7 1776 select HAVE_KVM 1777 help 1778 The Cavium Octeon processor is a highly integrated chip containing 1779 many ethernet hardware widgets for networking tasks. The processor 1780 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1781 Full details can be found at http://www.caviumnetworks.com. 1782 1783config CPU_BMIPS 1784 bool "Broadcom BMIPS" 1785 depends on SYS_HAS_CPU_BMIPS 1786 select CPU_MIPS32 1787 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1788 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1789 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1790 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1791 select CPU_SUPPORTS_32BIT_KERNEL 1792 select DMA_NONCOHERENT 1793 select IRQ_MIPS_CPU 1794 select SWAP_IO_SPACE 1795 select WEAK_ORDERING 1796 select CPU_SUPPORTS_HIGHMEM 1797 select CPU_HAS_PREFETCH 1798 select CPU_HAS_LOAD_STORE_LR 1799 select CPU_SUPPORTS_CPUFREQ 1800 select MIPS_EXTERNAL_TIMER 1801 help 1802 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1803 1804config CPU_XLR 1805 bool "Netlogic XLR SoC" 1806 depends on SYS_HAS_CPU_XLR 1807 select CPU_HAS_LOAD_STORE_LR 1808 select CPU_SUPPORTS_32BIT_KERNEL 1809 select CPU_SUPPORTS_64BIT_KERNEL 1810 select CPU_SUPPORTS_HIGHMEM 1811 select CPU_SUPPORTS_HUGEPAGES 1812 select WEAK_ORDERING 1813 select WEAK_REORDERING_BEYOND_LLSC 1814 help 1815 Netlogic Microsystems XLR/XLS processors. 1816 1817config CPU_XLP 1818 bool "Netlogic XLP SoC" 1819 depends on SYS_HAS_CPU_XLP 1820 select CPU_SUPPORTS_32BIT_KERNEL 1821 select CPU_SUPPORTS_64BIT_KERNEL 1822 select CPU_SUPPORTS_HIGHMEM 1823 select WEAK_ORDERING 1824 select WEAK_REORDERING_BEYOND_LLSC 1825 select CPU_HAS_PREFETCH 1826 select CPU_HAS_LOAD_STORE_LR 1827 select CPU_MIPSR2 1828 select CPU_SUPPORTS_HUGEPAGES 1829 select MIPS_ASID_BITS_VARIABLE 1830 help 1831 Netlogic Microsystems XLP processors. 1832endchoice 1833 1834config CPU_MIPS32_3_5_FEATURES 1835 bool "MIPS32 Release 3.5 Features" 1836 depends on SYS_HAS_CPU_MIPS32_R3_5 1837 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1838 help 1839 Choose this option to build a kernel for release 2 or later of the 1840 MIPS32 architecture including features from the 3.5 release such as 1841 support for Enhanced Virtual Addressing (EVA). 1842 1843config CPU_MIPS32_3_5_EVA 1844 bool "Enhanced Virtual Addressing (EVA)" 1845 depends on CPU_MIPS32_3_5_FEATURES 1846 select EVA 1847 default y 1848 help 1849 Choose this option if you want to enable the Enhanced Virtual 1850 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1851 One of its primary benefits is an increase in the maximum size 1852 of lowmem (up to 3GB). If unsure, say 'N' here. 1853 1854config CPU_MIPS32_R5_FEATURES 1855 bool "MIPS32 Release 5 Features" 1856 depends on SYS_HAS_CPU_MIPS32_R5 1857 depends on CPU_MIPS32_R2 1858 help 1859 Choose this option to build a kernel for release 2 or later of the 1860 MIPS32 architecture including features from release 5 such as 1861 support for Extended Physical Addressing (XPA). 1862 1863config CPU_MIPS32_R5_XPA 1864 bool "Extended Physical Addressing (XPA)" 1865 depends on CPU_MIPS32_R5_FEATURES 1866 depends on !EVA 1867 depends on !PAGE_SIZE_4KB 1868 depends on SYS_SUPPORTS_HIGHMEM 1869 select XPA 1870 select HIGHMEM 1871 select PHYS_ADDR_T_64BIT 1872 default n 1873 help 1874 Choose this option if you want to enable the Extended Physical 1875 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1876 benefit is to increase physical addressing equal to or greater 1877 than 40 bits. Note that this has the side effect of turning on 1878 64-bit addressing which in turn makes the PTEs 64-bit in size. 1879 If unsure, say 'N' here. 1880 1881if CPU_LOONGSON2F 1882config CPU_NOP_WORKAROUNDS 1883 bool 1884 1885config CPU_JUMP_WORKAROUNDS 1886 bool 1887 1888config CPU_LOONGSON2F_WORKAROUNDS 1889 bool "Loongson 2F Workarounds" 1890 default y 1891 select CPU_NOP_WORKAROUNDS 1892 select CPU_JUMP_WORKAROUNDS 1893 help 1894 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1895 require workarounds. Without workarounds the system may hang 1896 unexpectedly. For more information please refer to the gas 1897 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1898 1899 Loongson 2F03 and later have fixed these issues and no workarounds 1900 are needed. The workarounds have no significant side effect on them 1901 but may decrease the performance of the system so this option should 1902 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1903 systems. 1904 1905 If unsure, please say Y. 1906endif # CPU_LOONGSON2F 1907 1908config SYS_SUPPORTS_ZBOOT 1909 bool 1910 select HAVE_KERNEL_GZIP 1911 select HAVE_KERNEL_BZIP2 1912 select HAVE_KERNEL_LZ4 1913 select HAVE_KERNEL_LZMA 1914 select HAVE_KERNEL_LZO 1915 select HAVE_KERNEL_XZ 1916 1917config SYS_SUPPORTS_ZBOOT_UART16550 1918 bool 1919 select SYS_SUPPORTS_ZBOOT 1920 1921config SYS_SUPPORTS_ZBOOT_UART_PROM 1922 bool 1923 select SYS_SUPPORTS_ZBOOT 1924 1925config CPU_LOONGSON2EF 1926 bool 1927 select CPU_SUPPORTS_32BIT_KERNEL 1928 select CPU_SUPPORTS_64BIT_KERNEL 1929 select CPU_SUPPORTS_HIGHMEM 1930 select CPU_SUPPORTS_HUGEPAGES 1931 select ARCH_HAS_PHYS_TO_DMA 1932 select CPU_HAS_LOAD_STORE_LR 1933 1934config CPU_LOONGSON32 1935 bool 1936 select CPU_MIPS32 1937 select CPU_MIPSR2 1938 select CPU_HAS_PREFETCH 1939 select CPU_HAS_LOAD_STORE_LR 1940 select CPU_SUPPORTS_32BIT_KERNEL 1941 select CPU_SUPPORTS_HIGHMEM 1942 select CPU_SUPPORTS_CPUFREQ 1943 1944config CPU_BMIPS32_3300 1945 select SMP_UP if SMP 1946 bool 1947 1948config CPU_BMIPS4350 1949 bool 1950 select SYS_SUPPORTS_SMP 1951 select SYS_SUPPORTS_HOTPLUG_CPU 1952 1953config CPU_BMIPS4380 1954 bool 1955 select MIPS_L1_CACHE_SHIFT_6 1956 select SYS_SUPPORTS_SMP 1957 select SYS_SUPPORTS_HOTPLUG_CPU 1958 select CPU_HAS_RIXI 1959 1960config CPU_BMIPS5000 1961 bool 1962 select MIPS_CPU_SCACHE 1963 select MIPS_L1_CACHE_SHIFT_7 1964 select SYS_SUPPORTS_SMP 1965 select SYS_SUPPORTS_HOTPLUG_CPU 1966 select CPU_HAS_RIXI 1967 1968config SYS_HAS_CPU_LOONGSON64 1969 bool 1970 select CPU_SUPPORTS_CPUFREQ 1971 select CPU_HAS_RIXI 1972 1973config SYS_HAS_CPU_LOONGSON2E 1974 bool 1975 1976config SYS_HAS_CPU_LOONGSON2F 1977 bool 1978 select CPU_SUPPORTS_CPUFREQ 1979 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1980 1981config SYS_HAS_CPU_LOONGSON1B 1982 bool 1983 1984config SYS_HAS_CPU_LOONGSON1C 1985 bool 1986 1987config SYS_HAS_CPU_MIPS32_R1 1988 bool 1989 1990config SYS_HAS_CPU_MIPS32_R2 1991 bool 1992 1993config SYS_HAS_CPU_MIPS32_R3_5 1994 bool 1995 1996config SYS_HAS_CPU_MIPS32_R5 1997 bool 1998 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1999 2000config SYS_HAS_CPU_MIPS32_R6 2001 bool 2002 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2003 2004config SYS_HAS_CPU_MIPS64_R1 2005 bool 2006 2007config SYS_HAS_CPU_MIPS64_R2 2008 bool 2009 2010config SYS_HAS_CPU_MIPS64_R6 2011 bool 2012 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2013 2014config SYS_HAS_CPU_R3000 2015 bool 2016 2017config SYS_HAS_CPU_TX39XX 2018 bool 2019 2020config SYS_HAS_CPU_VR41XX 2021 bool 2022 2023config SYS_HAS_CPU_R4X00 2024 bool 2025 2026config SYS_HAS_CPU_TX49XX 2027 bool 2028 2029config SYS_HAS_CPU_R5000 2030 bool 2031 2032config SYS_HAS_CPU_R5500 2033 bool 2034 2035config SYS_HAS_CPU_NEVADA 2036 bool 2037 2038config SYS_HAS_CPU_R10000 2039 bool 2040 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2041 2042config SYS_HAS_CPU_RM7000 2043 bool 2044 2045config SYS_HAS_CPU_SB1 2046 bool 2047 2048config SYS_HAS_CPU_CAVIUM_OCTEON 2049 bool 2050 2051config SYS_HAS_CPU_BMIPS 2052 bool 2053 2054config SYS_HAS_CPU_BMIPS32_3300 2055 bool 2056 select SYS_HAS_CPU_BMIPS 2057 2058config SYS_HAS_CPU_BMIPS4350 2059 bool 2060 select SYS_HAS_CPU_BMIPS 2061 2062config SYS_HAS_CPU_BMIPS4380 2063 bool 2064 select SYS_HAS_CPU_BMIPS 2065 2066config SYS_HAS_CPU_BMIPS5000 2067 bool 2068 select SYS_HAS_CPU_BMIPS 2069 select ARCH_HAS_SYNC_DMA_FOR_CPU 2070 2071config SYS_HAS_CPU_XLR 2072 bool 2073 2074config SYS_HAS_CPU_XLP 2075 bool 2076 2077# 2078# CPU may reorder R->R, R->W, W->R, W->W 2079# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2080# 2081config WEAK_ORDERING 2082 bool 2083 2084# 2085# CPU may reorder reads and writes beyond LL/SC 2086# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2087# 2088config WEAK_REORDERING_BEYOND_LLSC 2089 bool 2090endmenu 2091 2092# 2093# These two indicate any level of the MIPS32 and MIPS64 architecture 2094# 2095config CPU_MIPS32 2096 bool 2097 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2098 2099config CPU_MIPS64 2100 bool 2101 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2102 2103# 2104# These indicate the revision of the architecture 2105# 2106config CPU_MIPSR1 2107 bool 2108 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2109 2110config CPU_MIPSR2 2111 bool 2112 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2113 select CPU_HAS_RIXI 2114 select MIPS_SPRAM 2115 2116config CPU_MIPSR6 2117 bool 2118 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2119 select CPU_HAS_RIXI 2120 select HAVE_ARCH_BITREVERSE 2121 select MIPS_ASID_BITS_VARIABLE 2122 select MIPS_CRC_SUPPORT 2123 select MIPS_SPRAM 2124 2125config TARGET_ISA_REV 2126 int 2127 default 1 if CPU_MIPSR1 2128 default 2 if CPU_MIPSR2 2129 default 6 if CPU_MIPSR6 2130 default 0 2131 help 2132 Reflects the ISA revision being targeted by the kernel build. This 2133 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2134 2135config EVA 2136 bool 2137 2138config XPA 2139 bool 2140 2141config SYS_SUPPORTS_32BIT_KERNEL 2142 bool 2143config SYS_SUPPORTS_64BIT_KERNEL 2144 bool 2145config CPU_SUPPORTS_32BIT_KERNEL 2146 bool 2147config CPU_SUPPORTS_64BIT_KERNEL 2148 bool 2149config CPU_SUPPORTS_CPUFREQ 2150 bool 2151config CPU_SUPPORTS_ADDRWINCFG 2152 bool 2153config CPU_SUPPORTS_HUGEPAGES 2154 bool 2155 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2156config MIPS_PGD_C0_CONTEXT 2157 bool 2158 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2159 2160# 2161# Set to y for ptrace access to watch registers. 2162# 2163config HARDWARE_WATCHPOINTS 2164 bool 2165 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2166 2167menu "Kernel type" 2168 2169choice 2170 prompt "Kernel code model" 2171 help 2172 You should only select this option if you have a workload that 2173 actually benefits from 64-bit processing or if your machine has 2174 large memory. You will only be presented a single option in this 2175 menu if your system does not support both 32-bit and 64-bit kernels. 2176 2177config 32BIT 2178 bool "32-bit kernel" 2179 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2180 select TRAD_SIGNALS 2181 help 2182 Select this option if you want to build a 32-bit kernel. 2183 2184config 64BIT 2185 bool "64-bit kernel" 2186 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2187 help 2188 Select this option if you want to build a 64-bit kernel. 2189 2190endchoice 2191 2192config KVM_GUEST 2193 bool "KVM Guest Kernel" 2194 depends on BROKEN_ON_SMP 2195 help 2196 Select this option if building a guest kernel for KVM (Trap & Emulate) 2197 mode. 2198 2199config KVM_GUEST_TIMER_FREQ 2200 int "Count/Compare Timer Frequency (MHz)" 2201 depends on KVM_GUEST 2202 default 100 2203 help 2204 Set this to non-zero if building a guest kernel for KVM to skip RTC 2205 emulation when determining guest CPU Frequency. Instead, the guest's 2206 timer frequency is specified directly. 2207 2208config MIPS_VA_BITS_48 2209 bool "48 bits virtual memory" 2210 depends on 64BIT 2211 help 2212 Support a maximum at least 48 bits of application virtual 2213 memory. Default is 40 bits or less, depending on the CPU. 2214 For page sizes 16k and above, this option results in a small 2215 memory overhead for page tables. For 4k page size, a fourth 2216 level of page tables is added which imposes both a memory 2217 overhead as well as slower TLB fault handling. 2218 2219 If unsure, say N. 2220 2221choice 2222 prompt "Kernel page size" 2223 default PAGE_SIZE_4KB 2224 2225config PAGE_SIZE_4KB 2226 bool "4kB" 2227 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2228 help 2229 This option select the standard 4kB Linux page size. On some 2230 R3000-family processors this is the only available page size. Using 2231 4kB page size will minimize memory consumption and is therefore 2232 recommended for low memory systems. 2233 2234config PAGE_SIZE_8KB 2235 bool "8kB" 2236 depends on CPU_CAVIUM_OCTEON 2237 depends on !MIPS_VA_BITS_48 2238 help 2239 Using 8kB page size will result in higher performance kernel at 2240 the price of higher memory consumption. This option is available 2241 only on cnMIPS processors. Note that you will need a suitable Linux 2242 distribution to support this. 2243 2244config PAGE_SIZE_16KB 2245 bool "16kB" 2246 depends on !CPU_R3000 && !CPU_TX39XX 2247 help 2248 Using 16kB page size will result in higher performance kernel at 2249 the price of higher memory consumption. This option is available on 2250 all non-R3000 family processors. Note that you will need a suitable 2251 Linux distribution to support this. 2252 2253config PAGE_SIZE_32KB 2254 bool "32kB" 2255 depends on CPU_CAVIUM_OCTEON 2256 depends on !MIPS_VA_BITS_48 2257 help 2258 Using 32kB page size will result in higher performance kernel at 2259 the price of higher memory consumption. This option is available 2260 only on cnMIPS cores. Note that you will need a suitable Linux 2261 distribution to support this. 2262 2263config PAGE_SIZE_64KB 2264 bool "64kB" 2265 depends on !CPU_R3000 && !CPU_TX39XX 2266 help 2267 Using 64kB page size will result in higher performance kernel at 2268 the price of higher memory consumption. This option is available on 2269 all non-R3000 family processor. Not that at the time of this 2270 writing this option is still high experimental. 2271 2272endchoice 2273 2274config FORCE_MAX_ZONEORDER 2275 int "Maximum zone order" 2276 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2277 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2278 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2279 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2280 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2281 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2282 range 11 64 2283 default "11" 2284 help 2285 The kernel memory allocator divides physically contiguous memory 2286 blocks into "zones", where each zone is a power of two number of 2287 pages. This option selects the largest power of two that the kernel 2288 keeps in the memory allocator. If you need to allocate very large 2289 blocks of physically contiguous memory, then you may need to 2290 increase this value. 2291 2292 This config option is actually maximum order plus one. For example, 2293 a value of 11 means that the largest free memory block is 2^10 pages. 2294 2295 The page size is not necessarily 4KB. Keep this in mind 2296 when choosing a value for this option. 2297 2298config BOARD_SCACHE 2299 bool 2300 2301config IP22_CPU_SCACHE 2302 bool 2303 select BOARD_SCACHE 2304 2305# 2306# Support for a MIPS32 / MIPS64 style S-caches 2307# 2308config MIPS_CPU_SCACHE 2309 bool 2310 select BOARD_SCACHE 2311 2312config R5000_CPU_SCACHE 2313 bool 2314 select BOARD_SCACHE 2315 2316config RM7000_CPU_SCACHE 2317 bool 2318 select BOARD_SCACHE 2319 2320config SIBYTE_DMA_PAGEOPS 2321 bool "Use DMA to clear/copy pages" 2322 depends on CPU_SB1 2323 help 2324 Instead of using the CPU to zero and copy pages, use a Data Mover 2325 channel. These DMA channels are otherwise unused by the standard 2326 SiByte Linux port. Seems to give a small performance benefit. 2327 2328config CPU_HAS_PREFETCH 2329 bool 2330 2331config CPU_GENERIC_DUMP_TLB 2332 bool 2333 default y if !(CPU_R3000 || CPU_TX39XX) 2334 2335config MIPS_FP_SUPPORT 2336 bool "Floating Point support" if EXPERT 2337 default y 2338 help 2339 Select y to include support for floating point in the kernel 2340 including initialization of FPU hardware, FP context save & restore 2341 and emulation of an FPU where necessary. Without this support any 2342 userland program attempting to use floating point instructions will 2343 receive a SIGILL. 2344 2345 If you know that your userland will not attempt to use floating point 2346 instructions then you can say n here to shrink the kernel a little. 2347 2348 If unsure, say y. 2349 2350config CPU_R2300_FPU 2351 bool 2352 depends on MIPS_FP_SUPPORT 2353 default y if CPU_R3000 || CPU_TX39XX 2354 2355config CPU_R3K_TLB 2356 bool 2357 2358config CPU_R4K_FPU 2359 bool 2360 depends on MIPS_FP_SUPPORT 2361 default y if !CPU_R2300_FPU 2362 2363config CPU_R4K_CACHE_TLB 2364 bool 2365 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2366 2367config MIPS_MT_SMP 2368 bool "MIPS MT SMP support (1 TC on each available VPE)" 2369 default y 2370 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2371 select CPU_MIPSR2_IRQ_VI 2372 select CPU_MIPSR2_IRQ_EI 2373 select SYNC_R4K 2374 select MIPS_MT 2375 select SMP 2376 select SMP_UP 2377 select SYS_SUPPORTS_SMP 2378 select SYS_SUPPORTS_SCHED_SMT 2379 select MIPS_PERF_SHARED_TC_COUNTERS 2380 help 2381 This is a kernel model which is known as SMVP. This is supported 2382 on cores with the MT ASE and uses the available VPEs to implement 2383 virtual processors which supports SMP. This is equivalent to the 2384 Intel Hyperthreading feature. For further information go to 2385 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2386 2387config MIPS_MT 2388 bool 2389 2390config SCHED_SMT 2391 bool "SMT (multithreading) scheduler support" 2392 depends on SYS_SUPPORTS_SCHED_SMT 2393 default n 2394 help 2395 SMT scheduler support improves the CPU scheduler's decision making 2396 when dealing with MIPS MT enabled cores at a cost of slightly 2397 increased overhead in some places. If unsure say N here. 2398 2399config SYS_SUPPORTS_SCHED_SMT 2400 bool 2401 2402config SYS_SUPPORTS_MULTITHREADING 2403 bool 2404 2405config MIPS_MT_FPAFF 2406 bool "Dynamic FPU affinity for FP-intensive threads" 2407 default y 2408 depends on MIPS_MT_SMP 2409 2410config MIPSR2_TO_R6_EMULATOR 2411 bool "MIPS R2-to-R6 emulator" 2412 depends on CPU_MIPSR6 2413 depends on MIPS_FP_SUPPORT 2414 default y 2415 help 2416 Choose this option if you want to run non-R6 MIPS userland code. 2417 Even if you say 'Y' here, the emulator will still be disabled by 2418 default. You can enable it using the 'mipsr2emu' kernel option. 2419 The only reason this is a build-time option is to save ~14K from the 2420 final kernel image. 2421 2422config SYS_SUPPORTS_VPE_LOADER 2423 bool 2424 depends on SYS_SUPPORTS_MULTITHREADING 2425 help 2426 Indicates that the platform supports the VPE loader, and provides 2427 physical_memsize. 2428 2429config MIPS_VPE_LOADER 2430 bool "VPE loader support." 2431 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2432 select CPU_MIPSR2_IRQ_VI 2433 select CPU_MIPSR2_IRQ_EI 2434 select MIPS_MT 2435 help 2436 Includes a loader for loading an elf relocatable object 2437 onto another VPE and running it. 2438 2439config MIPS_VPE_LOADER_CMP 2440 bool 2441 default "y" 2442 depends on MIPS_VPE_LOADER && MIPS_CMP 2443 2444config MIPS_VPE_LOADER_MT 2445 bool 2446 default "y" 2447 depends on MIPS_VPE_LOADER && !MIPS_CMP 2448 2449config MIPS_VPE_LOADER_TOM 2450 bool "Load VPE program into memory hidden from linux" 2451 depends on MIPS_VPE_LOADER 2452 default y 2453 help 2454 The loader can use memory that is present but has been hidden from 2455 Linux using the kernel command line option "mem=xxMB". It's up to 2456 you to ensure the amount you put in the option and the space your 2457 program requires is less or equal to the amount physically present. 2458 2459config MIPS_VPE_APSP_API 2460 bool "Enable support for AP/SP API (RTLX)" 2461 depends on MIPS_VPE_LOADER 2462 2463config MIPS_VPE_APSP_API_CMP 2464 bool 2465 default "y" 2466 depends on MIPS_VPE_APSP_API && MIPS_CMP 2467 2468config MIPS_VPE_APSP_API_MT 2469 bool 2470 default "y" 2471 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2472 2473config MIPS_CMP 2474 bool "MIPS CMP framework support (DEPRECATED)" 2475 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2476 select SMP 2477 select SYNC_R4K 2478 select SYS_SUPPORTS_SMP 2479 select WEAK_ORDERING 2480 default n 2481 help 2482 Select this if you are using a bootloader which implements the "CMP 2483 framework" protocol (ie. YAMON) and want your kernel to make use of 2484 its ability to start secondary CPUs. 2485 2486 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2487 instead of this. 2488 2489config MIPS_CPS 2490 bool "MIPS Coherent Processing System support" 2491 depends on SYS_SUPPORTS_MIPS_CPS 2492 select MIPS_CM 2493 select MIPS_CPS_PM if HOTPLUG_CPU 2494 select SMP 2495 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2496 select SYS_SUPPORTS_HOTPLUG_CPU 2497 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2498 select SYS_SUPPORTS_SMP 2499 select WEAK_ORDERING 2500 help 2501 Select this if you wish to run an SMP kernel across multiple cores 2502 within a MIPS Coherent Processing System. When this option is 2503 enabled the kernel will probe for other cores and boot them with 2504 no external assistance. It is safe to enable this when hardware 2505 support is unavailable. 2506 2507config MIPS_CPS_PM 2508 depends on MIPS_CPS 2509 bool 2510 2511config MIPS_CM 2512 bool 2513 select MIPS_CPC 2514 2515config MIPS_CPC 2516 bool 2517 2518config SB1_PASS_2_WORKAROUNDS 2519 bool 2520 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2521 default y 2522 2523config SB1_PASS_2_1_WORKAROUNDS 2524 bool 2525 depends on CPU_SB1 && CPU_SB1_PASS_2 2526 default y 2527 2528choice 2529 prompt "SmartMIPS or microMIPS ASE support" 2530 2531config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2532 bool "None" 2533 help 2534 Select this if you want neither microMIPS nor SmartMIPS support 2535 2536config CPU_HAS_SMARTMIPS 2537 depends on SYS_SUPPORTS_SMARTMIPS 2538 bool "SmartMIPS" 2539 help 2540 SmartMIPS is a extension of the MIPS32 architecture aimed at 2541 increased security at both hardware and software level for 2542 smartcards. Enabling this option will allow proper use of the 2543 SmartMIPS instructions by Linux applications. However a kernel with 2544 this option will not work on a MIPS core without SmartMIPS core. If 2545 you don't know you probably don't have SmartMIPS and should say N 2546 here. 2547 2548config CPU_MICROMIPS 2549 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2550 bool "microMIPS" 2551 help 2552 When this option is enabled the kernel will be built using the 2553 microMIPS ISA 2554 2555endchoice 2556 2557config CPU_HAS_MSA 2558 bool "Support for the MIPS SIMD Architecture" 2559 depends on CPU_SUPPORTS_MSA 2560 depends on MIPS_FP_SUPPORT 2561 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2562 help 2563 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2564 and a set of SIMD instructions to operate on them. When this option 2565 is enabled the kernel will support allocating & switching MSA 2566 vector register contexts. If you know that your kernel will only be 2567 running on CPUs which do not support MSA or that your userland will 2568 not be making use of it then you may wish to say N here to reduce 2569 the size & complexity of your kernel. 2570 2571 If unsure, say Y. 2572 2573config CPU_HAS_WB 2574 bool 2575 2576config XKS01 2577 bool 2578 2579config CPU_HAS_RIXI 2580 bool 2581 2582config CPU_HAS_LOAD_STORE_LR 2583 bool 2584 help 2585 CPU has support for unaligned load and store instructions: 2586 LWL, LWR, SWL, SWR (Load/store word left/right). 2587 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2588 2589# 2590# Vectored interrupt mode is an R2 feature 2591# 2592config CPU_MIPSR2_IRQ_VI 2593 bool 2594 2595# 2596# Extended interrupt mode is an R2 feature 2597# 2598config CPU_MIPSR2_IRQ_EI 2599 bool 2600 2601config CPU_HAS_SYNC 2602 bool 2603 depends on !CPU_R3000 2604 default y 2605 2606# 2607# CPU non-features 2608# 2609config CPU_DADDI_WORKAROUNDS 2610 bool 2611 2612config CPU_R4000_WORKAROUNDS 2613 bool 2614 select CPU_R4400_WORKAROUNDS 2615 2616config CPU_R4400_WORKAROUNDS 2617 bool 2618 2619config CPU_R4X00_BUGS64 2620 bool 2621 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2622 2623config MIPS_ASID_SHIFT 2624 int 2625 default 6 if CPU_R3000 || CPU_TX39XX 2626 default 0 2627 2628config MIPS_ASID_BITS 2629 int 2630 default 0 if MIPS_ASID_BITS_VARIABLE 2631 default 6 if CPU_R3000 || CPU_TX39XX 2632 default 8 2633 2634config MIPS_ASID_BITS_VARIABLE 2635 bool 2636 2637config MIPS_CRC_SUPPORT 2638 bool 2639 2640# 2641# - Highmem only makes sense for the 32-bit kernel. 2642# - The current highmem code will only work properly on physically indexed 2643# caches such as R3000, SB1, R7000 or those that look like they're virtually 2644# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2645# moment we protect the user and offer the highmem option only on machines 2646# where it's known to be safe. This will not offer highmem on a few systems 2647# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2648# indexed CPUs but we're playing safe. 2649# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2650# know they might have memory configurations that could make use of highmem 2651# support. 2652# 2653config HIGHMEM 2654 bool "High Memory Support" 2655 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2656 2657config CPU_SUPPORTS_HIGHMEM 2658 bool 2659 2660config SYS_SUPPORTS_HIGHMEM 2661 bool 2662 2663config SYS_SUPPORTS_SMARTMIPS 2664 bool 2665 2666config SYS_SUPPORTS_MICROMIPS 2667 bool 2668 2669config SYS_SUPPORTS_MIPS16 2670 bool 2671 help 2672 This option must be set if a kernel might be executed on a MIPS16- 2673 enabled CPU even if MIPS16 is not actually being used. In other 2674 words, it makes the kernel MIPS16-tolerant. 2675 2676config CPU_SUPPORTS_MSA 2677 bool 2678 2679config ARCH_FLATMEM_ENABLE 2680 def_bool y 2681 depends on !NUMA && !CPU_LOONGSON2EF 2682 2683config ARCH_SPARSEMEM_ENABLE 2684 bool 2685 select SPARSEMEM_STATIC if !SGI_IP27 2686 2687config NUMA 2688 bool "NUMA Support" 2689 depends on SYS_SUPPORTS_NUMA 2690 help 2691 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2692 Access). This option improves performance on systems with more 2693 than two nodes; on two node systems it is generally better to 2694 leave it disabled; on single node systems disable this option 2695 disabled. 2696 2697config SYS_SUPPORTS_NUMA 2698 bool 2699 2700config HAVE_SETUP_PER_CPU_AREA 2701 def_bool y 2702 depends on NUMA 2703 2704config NEED_PER_CPU_EMBED_FIRST_CHUNK 2705 def_bool y 2706 depends on NUMA 2707 2708config RELOCATABLE 2709 bool "Relocatable kernel" 2710 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2711 help 2712 This builds a kernel image that retains relocation information 2713 so it can be loaded someplace besides the default 1MB. 2714 The relocations make the kernel binary about 15% larger, 2715 but are discarded at runtime 2716 2717config RELOCATION_TABLE_SIZE 2718 hex "Relocation table size" 2719 depends on RELOCATABLE 2720 range 0x0 0x01000000 2721 default "0x00100000" 2722 ---help--- 2723 A table of relocation data will be appended to the kernel binary 2724 and parsed at boot to fix up the relocated kernel. 2725 2726 This option allows the amount of space reserved for the table to be 2727 adjusted, although the default of 1Mb should be ok in most cases. 2728 2729 The build will fail and a valid size suggested if this is too small. 2730 2731 If unsure, leave at the default value. 2732 2733config RANDOMIZE_BASE 2734 bool "Randomize the address of the kernel image" 2735 depends on RELOCATABLE 2736 ---help--- 2737 Randomizes the physical and virtual address at which the 2738 kernel image is loaded, as a security feature that 2739 deters exploit attempts relying on knowledge of the location 2740 of kernel internals. 2741 2742 Entropy is generated using any coprocessor 0 registers available. 2743 2744 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2745 2746 If unsure, say N. 2747 2748config RANDOMIZE_BASE_MAX_OFFSET 2749 hex "Maximum kASLR offset" if EXPERT 2750 depends on RANDOMIZE_BASE 2751 range 0x0 0x40000000 if EVA || 64BIT 2752 range 0x0 0x08000000 2753 default "0x01000000" 2754 ---help--- 2755 When kASLR is active, this provides the maximum offset that will 2756 be applied to the kernel image. It should be set according to the 2757 amount of physical RAM available in the target system minus 2758 PHYSICAL_START and must be a power of 2. 2759 2760 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2761 EVA or 64-bit. The default is 16Mb. 2762 2763config NODES_SHIFT 2764 int 2765 default "6" 2766 depends on NEED_MULTIPLE_NODES 2767 2768config HW_PERF_EVENTS 2769 bool "Enable hardware performance counter support for perf events" 2770 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2771 default y 2772 help 2773 Enable hardware performance counter support for perf events. If 2774 disabled, perf events will use software events only. 2775 2776config SMP 2777 bool "Multi-Processing support" 2778 depends on SYS_SUPPORTS_SMP 2779 help 2780 This enables support for systems with more than one CPU. If you have 2781 a system with only one CPU, say N. If you have a system with more 2782 than one CPU, say Y. 2783 2784 If you say N here, the kernel will run on uni- and multiprocessor 2785 machines, but will use only one CPU of a multiprocessor machine. If 2786 you say Y here, the kernel will run on many, but not all, 2787 uniprocessor machines. On a uniprocessor machine, the kernel 2788 will run faster if you say N here. 2789 2790 People using multiprocessor machines who say Y here should also say 2791 Y to "Enhanced Real Time Clock Support", below. 2792 2793 See also the SMP-HOWTO available at 2794 <http://www.tldp.org/docs.html#howto>. 2795 2796 If you don't know what to do here, say N. 2797 2798config HOTPLUG_CPU 2799 bool "Support for hot-pluggable CPUs" 2800 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2801 help 2802 Say Y here to allow turning CPUs off and on. CPUs can be 2803 controlled through /sys/devices/system/cpu. 2804 (Note: power management support will enable this option 2805 automatically on SMP systems. ) 2806 Say N if you want to disable CPU hotplug. 2807 2808config SMP_UP 2809 bool 2810 2811config SYS_SUPPORTS_MIPS_CMP 2812 bool 2813 2814config SYS_SUPPORTS_MIPS_CPS 2815 bool 2816 2817config SYS_SUPPORTS_SMP 2818 bool 2819 2820config NR_CPUS_DEFAULT_4 2821 bool 2822 2823config NR_CPUS_DEFAULT_8 2824 bool 2825 2826config NR_CPUS_DEFAULT_16 2827 bool 2828 2829config NR_CPUS_DEFAULT_32 2830 bool 2831 2832config NR_CPUS_DEFAULT_64 2833 bool 2834 2835config NR_CPUS 2836 int "Maximum number of CPUs (2-256)" 2837 range 2 256 2838 depends on SMP 2839 default "4" if NR_CPUS_DEFAULT_4 2840 default "8" if NR_CPUS_DEFAULT_8 2841 default "16" if NR_CPUS_DEFAULT_16 2842 default "32" if NR_CPUS_DEFAULT_32 2843 default "64" if NR_CPUS_DEFAULT_64 2844 help 2845 This allows you to specify the maximum number of CPUs which this 2846 kernel will support. The maximum supported value is 32 for 32-bit 2847 kernel and 64 for 64-bit kernels; the minimum value which makes 2848 sense is 1 for Qemu (useful only for kernel debugging purposes) 2849 and 2 for all others. 2850 2851 This is purely to save memory - each supported CPU adds 2852 approximately eight kilobytes to the kernel image. For best 2853 performance should round up your number of processors to the next 2854 power of two. 2855 2856config MIPS_PERF_SHARED_TC_COUNTERS 2857 bool 2858 2859config MIPS_NR_CPU_NR_MAP_1024 2860 bool 2861 2862config MIPS_NR_CPU_NR_MAP 2863 int 2864 depends on SMP 2865 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2866 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2867 2868# 2869# Timer Interrupt Frequency Configuration 2870# 2871 2872choice 2873 prompt "Timer frequency" 2874 default HZ_250 2875 help 2876 Allows the configuration of the timer frequency. 2877 2878 config HZ_24 2879 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2880 2881 config HZ_48 2882 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2883 2884 config HZ_100 2885 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2886 2887 config HZ_128 2888 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2889 2890 config HZ_250 2891 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2892 2893 config HZ_256 2894 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2895 2896 config HZ_1000 2897 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2898 2899 config HZ_1024 2900 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2901 2902endchoice 2903 2904config SYS_SUPPORTS_24HZ 2905 bool 2906 2907config SYS_SUPPORTS_48HZ 2908 bool 2909 2910config SYS_SUPPORTS_100HZ 2911 bool 2912 2913config SYS_SUPPORTS_128HZ 2914 bool 2915 2916config SYS_SUPPORTS_250HZ 2917 bool 2918 2919config SYS_SUPPORTS_256HZ 2920 bool 2921 2922config SYS_SUPPORTS_1000HZ 2923 bool 2924 2925config SYS_SUPPORTS_1024HZ 2926 bool 2927 2928config SYS_SUPPORTS_ARBIT_HZ 2929 bool 2930 default y if !SYS_SUPPORTS_24HZ && \ 2931 !SYS_SUPPORTS_48HZ && \ 2932 !SYS_SUPPORTS_100HZ && \ 2933 !SYS_SUPPORTS_128HZ && \ 2934 !SYS_SUPPORTS_250HZ && \ 2935 !SYS_SUPPORTS_256HZ && \ 2936 !SYS_SUPPORTS_1000HZ && \ 2937 !SYS_SUPPORTS_1024HZ 2938 2939config HZ 2940 int 2941 default 24 if HZ_24 2942 default 48 if HZ_48 2943 default 100 if HZ_100 2944 default 128 if HZ_128 2945 default 250 if HZ_250 2946 default 256 if HZ_256 2947 default 1000 if HZ_1000 2948 default 1024 if HZ_1024 2949 2950config SCHED_HRTICK 2951 def_bool HIGH_RES_TIMERS 2952 2953config KEXEC 2954 bool "Kexec system call" 2955 select KEXEC_CORE 2956 help 2957 kexec is a system call that implements the ability to shutdown your 2958 current kernel, and to start another kernel. It is like a reboot 2959 but it is independent of the system firmware. And like a reboot 2960 you can start any kernel with it, not just Linux. 2961 2962 The name comes from the similarity to the exec system call. 2963 2964 It is an ongoing process to be certain the hardware in a machine 2965 is properly shutdown, so do not be surprised if this code does not 2966 initially work for you. As of this writing the exact hardware 2967 interface is strongly in flux, so no good recommendation can be 2968 made. 2969 2970config CRASH_DUMP 2971 bool "Kernel crash dumps" 2972 help 2973 Generate crash dump after being started by kexec. 2974 This should be normally only set in special crash dump kernels 2975 which are loaded in the main kernel with kexec-tools into 2976 a specially reserved region and then later executed after 2977 a crash by kdump/kexec. The crash dump kernel must be compiled 2978 to a memory address not used by the main kernel or firmware using 2979 PHYSICAL_START. 2980 2981config PHYSICAL_START 2982 hex "Physical address where the kernel is loaded" 2983 default "0xffffffff84000000" 2984 depends on CRASH_DUMP 2985 help 2986 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2987 If you plan to use kernel for capturing the crash dump change 2988 this value to start of the reserved region (the "X" value as 2989 specified in the "crashkernel=YM@XM" command line boot parameter 2990 passed to the panic-ed kernel). 2991 2992config SECCOMP 2993 bool "Enable seccomp to safely compute untrusted bytecode" 2994 depends on PROC_FS 2995 default y 2996 help 2997 This kernel feature is useful for number crunching applications 2998 that may need to compute untrusted bytecode during their 2999 execution. By using pipes or other transports made available to 3000 the process as file descriptors supporting the read/write 3001 syscalls, it's possible to isolate those applications in 3002 their own address space using seccomp. Once seccomp is 3003 enabled via /proc/<pid>/seccomp, it cannot be disabled 3004 and the task is only allowed to execute a few safe syscalls 3005 defined by each seccomp mode. 3006 3007 If unsure, say Y. Only embedded should say N here. 3008 3009config MIPS_O32_FP64_SUPPORT 3010 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3011 depends on 32BIT || MIPS32_O32 3012 help 3013 When this is enabled, the kernel will support use of 64-bit floating 3014 point registers with binaries using the O32 ABI along with the 3015 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3016 32-bit MIPS systems this support is at the cost of increasing the 3017 size and complexity of the compiled FPU emulator. Thus if you are 3018 running a MIPS32 system and know that none of your userland binaries 3019 will require 64-bit floating point, you may wish to reduce the size 3020 of your kernel & potentially improve FP emulation performance by 3021 saying N here. 3022 3023 Although binutils currently supports use of this flag the details 3024 concerning its effect upon the O32 ABI in userland are still being 3025 worked on. In order to avoid userland becoming dependant upon current 3026 behaviour before the details have been finalised, this option should 3027 be considered experimental and only enabled by those working upon 3028 said details. 3029 3030 If unsure, say N. 3031 3032config USE_OF 3033 bool 3034 select OF 3035 select OF_EARLY_FLATTREE 3036 select IRQ_DOMAIN 3037 3038config UHI_BOOT 3039 bool 3040 3041config BUILTIN_DTB 3042 bool 3043 3044choice 3045 prompt "Kernel appended dtb support" if USE_OF 3046 default MIPS_NO_APPENDED_DTB 3047 3048 config MIPS_NO_APPENDED_DTB 3049 bool "None" 3050 help 3051 Do not enable appended dtb support. 3052 3053 config MIPS_ELF_APPENDED_DTB 3054 bool "vmlinux" 3055 help 3056 With this option, the boot code will look for a device tree binary 3057 DTB) included in the vmlinux ELF section .appended_dtb. By default 3058 it is empty and the DTB can be appended using binutils command 3059 objcopy: 3060 3061 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3062 3063 This is meant as a backward compatiblity convenience for those 3064 systems with a bootloader that can't be upgraded to accommodate 3065 the documented boot protocol using a device tree. 3066 3067 config MIPS_RAW_APPENDED_DTB 3068 bool "vmlinux.bin or vmlinuz.bin" 3069 help 3070 With this option, the boot code will look for a device tree binary 3071 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3072 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3073 3074 This is meant as a backward compatibility convenience for those 3075 systems with a bootloader that can't be upgraded to accommodate 3076 the documented boot protocol using a device tree. 3077 3078 Beware that there is very little in terms of protection against 3079 this option being confused by leftover garbage in memory that might 3080 look like a DTB header after a reboot if no actual DTB is appended 3081 to vmlinux.bin. Do not leave this option active in a production kernel 3082 if you don't intend to always append a DTB. 3083endchoice 3084 3085choice 3086 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3087 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3088 !MIPS_MALTA && \ 3089 !CAVIUM_OCTEON_SOC 3090 default MIPS_CMDLINE_FROM_BOOTLOADER 3091 3092 config MIPS_CMDLINE_FROM_DTB 3093 depends on USE_OF 3094 bool "Dtb kernel arguments if available" 3095 3096 config MIPS_CMDLINE_DTB_EXTEND 3097 depends on USE_OF 3098 bool "Extend dtb kernel arguments with bootloader arguments" 3099 3100 config MIPS_CMDLINE_FROM_BOOTLOADER 3101 bool "Bootloader kernel arguments if available" 3102 3103 config MIPS_CMDLINE_BUILTIN_EXTEND 3104 depends on CMDLINE_BOOL 3105 bool "Extend builtin kernel arguments with bootloader arguments" 3106endchoice 3107 3108endmenu 3109 3110config LOCKDEP_SUPPORT 3111 bool 3112 default y 3113 3114config STACKTRACE_SUPPORT 3115 bool 3116 default y 3117 3118config PGTABLE_LEVELS 3119 int 3120 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3121 default 3 if 64BIT && !PAGE_SIZE_64KB 3122 default 2 3123 3124config MIPS_AUTO_PFN_OFFSET 3125 bool 3126 3127menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3128 3129config PCI_DRIVERS_GENERIC 3130 select PCI_DOMAINS_GENERIC if PCI 3131 bool 3132 3133config PCI_DRIVERS_LEGACY 3134 def_bool !PCI_DRIVERS_GENERIC 3135 select NO_GENERIC_PCI_IOPORT_MAP 3136 select PCI_DOMAINS if PCI 3137 3138# 3139# ISA support is now enabled via select. Too many systems still have the one 3140# or other ISA chip on the board that users don't know about so don't expect 3141# users to choose the right thing ... 3142# 3143config ISA 3144 bool 3145 3146config TC 3147 bool "TURBOchannel support" 3148 depends on MACH_DECSTATION 3149 help 3150 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3151 processors. TURBOchannel programming specifications are available 3152 at: 3153 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3154 and: 3155 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3156 Linux driver support status is documented at: 3157 <http://www.linux-mips.org/wiki/DECstation> 3158 3159config MMU 3160 bool 3161 default y 3162 3163config ARCH_MMAP_RND_BITS_MIN 3164 default 12 if 64BIT 3165 default 8 3166 3167config ARCH_MMAP_RND_BITS_MAX 3168 default 18 if 64BIT 3169 default 15 3170 3171config ARCH_MMAP_RND_COMPAT_BITS_MIN 3172 default 8 3173 3174config ARCH_MMAP_RND_COMPAT_BITS_MAX 3175 default 15 3176 3177config I8253 3178 bool 3179 select CLKSRC_I8253 3180 select CLKEVT_I8253 3181 select MIPS_EXTERNAL_TIMER 3182 3183config ZONE_DMA 3184 bool 3185 3186config ZONE_DMA32 3187 bool 3188 3189endmenu 3190 3191config TRAD_SIGNALS 3192 bool 3193 3194config MIPS32_COMPAT 3195 bool 3196 3197config COMPAT 3198 bool 3199 3200config SYSVIPC_COMPAT 3201 bool 3202 3203config MIPS32_O32 3204 bool "Kernel support for o32 binaries" 3205 depends on 64BIT 3206 select ARCH_WANT_OLD_COMPAT_IPC 3207 select COMPAT 3208 select MIPS32_COMPAT 3209 select SYSVIPC_COMPAT if SYSVIPC 3210 help 3211 Select this option if you want to run o32 binaries. These are pure 3212 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3213 existing binaries are in this format. 3214 3215 If unsure, say Y. 3216 3217config MIPS32_N32 3218 bool "Kernel support for n32 binaries" 3219 depends on 64BIT 3220 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3221 select COMPAT 3222 select MIPS32_COMPAT 3223 select SYSVIPC_COMPAT if SYSVIPC 3224 help 3225 Select this option if you want to run n32 binaries. These are 3226 64-bit binaries using 32-bit quantities for addressing and certain 3227 data that would normally be 64-bit. They are used in special 3228 cases. 3229 3230 If unsure, say N. 3231 3232config BINFMT_ELF32 3233 bool 3234 default y if MIPS32_O32 || MIPS32_N32 3235 select ELFCORE 3236 3237menu "Power management options" 3238 3239config ARCH_HIBERNATION_POSSIBLE 3240 def_bool y 3241 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3242 3243config ARCH_SUSPEND_POSSIBLE 3244 def_bool y 3245 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3246 3247source "kernel/power/Kconfig" 3248 3249endmenu 3250 3251config MIPS_EXTERNAL_TIMER 3252 bool 3253 3254menu "CPU Power Management" 3255 3256if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3257source "drivers/cpufreq/Kconfig" 3258endif 3259 3260source "drivers/cpuidle/Kconfig" 3261 3262endmenu 3263 3264source "drivers/firmware/Kconfig" 3265 3266source "arch/mips/kvm/Kconfig" 3267