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