1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV 9 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 10 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 11 select ARCH_HAS_UBSAN_SANITIZE_ALL 12 select ARCH_SUPPORTS_UPROBES 13 select ARCH_USE_BUILTIN_BSWAP 14 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 15 select ARCH_USE_QUEUED_RWLOCKS 16 select ARCH_USE_QUEUED_SPINLOCKS 17 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 18 select ARCH_WANT_IPC_PARSE_VERSION 19 select BUILDTIME_TABLE_SORT 20 select CLONE_BACKWARDS 21 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 22 select CPU_PM if CPU_IDLE 23 select GENERIC_ATOMIC64 if !64BIT 24 select GENERIC_CLOCKEVENTS 25 select GENERIC_CMOS_UPDATE 26 select GENERIC_CPU_AUTOPROBE 27 select GENERIC_GETTIMEOFDAY 28 select GENERIC_IOMAP 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_ISA_DMA if EISA 32 select GENERIC_LIB_ASHLDI3 33 select GENERIC_LIB_ASHRDI3 34 select GENERIC_LIB_CMPDI2 35 select GENERIC_LIB_LSHRDI3 36 select GENERIC_LIB_UCMPDI2 37 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 38 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_TIME_VSYSCALL 40 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 41 select HANDLE_DOMAIN_IRQ 42 select HAVE_ARCH_COMPILER_H 43 select HAVE_ARCH_JUMP_LABEL 44 select HAVE_ARCH_KGDB 45 select HAVE_ARCH_MMAP_RND_BITS if MMU 46 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 47 select HAVE_ARCH_SECCOMP_FILTER 48 select HAVE_ARCH_TRACEHOOK 49 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 50 select HAVE_ASM_MODVERSIONS 51 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 52 select HAVE_CONTEXT_TRACKING 53 select HAVE_TIF_NOHZ 54 select HAVE_C_RECORDMCOUNT 55 select HAVE_DEBUG_KMEMLEAK 56 select HAVE_DEBUG_STACKOVERFLOW 57 select HAVE_DMA_CONTIGUOUS 58 select HAVE_DYNAMIC_FTRACE 59 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 60 select HAVE_EXIT_THREAD 61 select HAVE_FAST_GUP 62 select HAVE_FTRACE_MCOUNT_RECORD 63 select HAVE_FUNCTION_GRAPH_TRACER 64 select HAVE_FUNCTION_TRACER 65 select HAVE_GCC_PLUGINS 66 select HAVE_GENERIC_VDSO 67 select HAVE_IDE 68 select HAVE_IOREMAP_PROT 69 select HAVE_IRQ_EXIT_ON_IRQ_STACK 70 select HAVE_IRQ_TIME_ACCOUNTING 71 select HAVE_KPROBES 72 select HAVE_KRETPROBES 73 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 74 select HAVE_MOD_ARCH_SPECIFIC 75 select HAVE_NMI 76 select HAVE_OPROFILE 77 select HAVE_PERF_EVENTS 78 select HAVE_REGS_AND_STACK_ACCESS_API 79 select HAVE_RSEQ 80 select HAVE_SPARSE_SYSCALL_NR 81 select HAVE_STACKPROTECTOR 82 select HAVE_SYSCALL_TRACEPOINTS 83 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 84 select IRQ_FORCED_THREADING 85 select ISA if EISA 86 select MODULES_USE_ELF_REL if MODULES 87 select MODULES_USE_ELF_RELA if MODULES && 64BIT 88 select PERF_USE_VMALLOC 89 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI 90 select RTC_LIB 91 select SYSCTL_EXCEPTION_TRACE 92 select VIRT_TO_BUS 93 94config MIPS_FIXUP_BIGPHYS_ADDR 95 bool 96 97menu "Machine selection" 98 99choice 100 prompt "System type" 101 default MIPS_GENERIC 102 103config MIPS_GENERIC 104 bool "Generic board-agnostic MIPS kernel" 105 select BOOT_RAW 106 select BUILTIN_DTB 107 select CEVT_R4K 108 select CLKSRC_MIPS_GIC 109 select COMMON_CLK 110 select CPU_MIPSR2_IRQ_EI 111 select CPU_MIPSR2_IRQ_VI 112 select CSRC_R4K 113 select DMA_PERDEV_COHERENT 114 select HAVE_PCI 115 select IRQ_MIPS_CPU 116 select MIPS_AUTO_PFN_OFFSET 117 select MIPS_CPU_SCACHE 118 select MIPS_GIC 119 select MIPS_L1_CACHE_SHIFT_7 120 select NO_EXCEPT_FILL 121 select PCI_DRIVERS_GENERIC 122 select SMP_UP if SMP 123 select SWAP_IO_SPACE 124 select SYS_HAS_CPU_MIPS32_R1 125 select SYS_HAS_CPU_MIPS32_R2 126 select SYS_HAS_CPU_MIPS32_R6 127 select SYS_HAS_CPU_MIPS64_R1 128 select SYS_HAS_CPU_MIPS64_R2 129 select SYS_HAS_CPU_MIPS64_R6 130 select SYS_SUPPORTS_32BIT_KERNEL 131 select SYS_SUPPORTS_64BIT_KERNEL 132 select SYS_SUPPORTS_BIG_ENDIAN 133 select SYS_SUPPORTS_HIGHMEM 134 select SYS_SUPPORTS_LITTLE_ENDIAN 135 select SYS_SUPPORTS_MICROMIPS 136 select SYS_SUPPORTS_MIPS16 137 select SYS_SUPPORTS_MIPS_CPS 138 select SYS_SUPPORTS_MULTITHREADING 139 select SYS_SUPPORTS_RELOCATABLE 140 select SYS_SUPPORTS_SMARTMIPS 141 select UHI_BOOT 142 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 143 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 144 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 145 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 146 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 147 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 148 select USE_OF 149 help 150 Select this to build a kernel which aims to support multiple boards, 151 generally using a flattened device tree passed from the bootloader 152 using the boot protocol defined in the UHI (Unified Hosting 153 Interface) specification. 154 155config MIPS_ALCHEMY 156 bool "Alchemy processor based machines" 157 select PHYS_ADDR_T_64BIT 158 select CEVT_R4K 159 select CSRC_R4K 160 select IRQ_MIPS_CPU 161 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 162 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 163 select SYS_HAS_CPU_MIPS32_R1 164 select SYS_SUPPORTS_32BIT_KERNEL 165 select SYS_SUPPORTS_APM_EMULATION 166 select GPIOLIB 167 select SYS_SUPPORTS_ZBOOT 168 select COMMON_CLK 169 170config AR7 171 bool "Texas Instruments AR7" 172 select BOOT_ELF32 173 select DMA_NONCOHERENT 174 select CEVT_R4K 175 select CSRC_R4K 176 select IRQ_MIPS_CPU 177 select NO_EXCEPT_FILL 178 select SWAP_IO_SPACE 179 select SYS_HAS_CPU_MIPS32_R1 180 select SYS_HAS_EARLY_PRINTK 181 select SYS_SUPPORTS_32BIT_KERNEL 182 select SYS_SUPPORTS_LITTLE_ENDIAN 183 select SYS_SUPPORTS_MIPS16 184 select SYS_SUPPORTS_ZBOOT_UART16550 185 select GPIOLIB 186 select VLYNQ 187 select HAVE_LEGACY_CLK 188 help 189 Support for the Texas Instruments AR7 System-on-a-Chip 190 family: TNETD7100, 7200 and 7300. 191 192config ATH25 193 bool "Atheros AR231x/AR531x SoC support" 194 select CEVT_R4K 195 select CSRC_R4K 196 select DMA_NONCOHERENT 197 select IRQ_MIPS_CPU 198 select IRQ_DOMAIN 199 select SYS_HAS_CPU_MIPS32_R1 200 select SYS_SUPPORTS_BIG_ENDIAN 201 select SYS_SUPPORTS_32BIT_KERNEL 202 select SYS_HAS_EARLY_PRINTK 203 help 204 Support for Atheros AR231x and Atheros AR531x based boards 205 206config ATH79 207 bool "Atheros AR71XX/AR724X/AR913X based boards" 208 select ARCH_HAS_RESET_CONTROLLER 209 select BOOT_RAW 210 select CEVT_R4K 211 select CSRC_R4K 212 select DMA_NONCOHERENT 213 select GPIOLIB 214 select PINCTRL 215 select COMMON_CLK 216 select IRQ_MIPS_CPU 217 select SYS_HAS_CPU_MIPS32_R2 218 select SYS_HAS_EARLY_PRINTK 219 select SYS_SUPPORTS_32BIT_KERNEL 220 select SYS_SUPPORTS_BIG_ENDIAN 221 select SYS_SUPPORTS_MIPS16 222 select SYS_SUPPORTS_ZBOOT_UART_PROM 223 select USE_OF 224 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 225 help 226 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 227 228config BMIPS_GENERIC 229 bool "Broadcom Generic BMIPS kernel" 230 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 231 select ARCH_HAS_PHYS_TO_DMA 232 select BOOT_RAW 233 select NO_EXCEPT_FILL 234 select USE_OF 235 select CEVT_R4K 236 select CSRC_R4K 237 select SYNC_R4K 238 select COMMON_CLK 239 select BCM6345_L1_IRQ 240 select BCM7038_L1_IRQ 241 select BCM7120_L2_IRQ 242 select BRCMSTB_L2_IRQ 243 select IRQ_MIPS_CPU 244 select DMA_NONCOHERENT 245 select SYS_SUPPORTS_32BIT_KERNEL 246 select SYS_SUPPORTS_LITTLE_ENDIAN 247 select SYS_SUPPORTS_BIG_ENDIAN 248 select SYS_SUPPORTS_HIGHMEM 249 select SYS_HAS_CPU_BMIPS32_3300 250 select SYS_HAS_CPU_BMIPS4350 251 select SYS_HAS_CPU_BMIPS4380 252 select SYS_HAS_CPU_BMIPS5000 253 select SWAP_IO_SPACE 254 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 255 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 256 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 257 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 258 select HARDIRQS_SW_RESEND 259 help 260 Build a generic DT-based kernel image that boots on select 261 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 262 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 263 must be set appropriately for your board. 264 265config BCM47XX 266 bool "Broadcom BCM47XX based boards" 267 select BOOT_RAW 268 select CEVT_R4K 269 select CSRC_R4K 270 select DMA_NONCOHERENT 271 select HAVE_PCI 272 select IRQ_MIPS_CPU 273 select SYS_HAS_CPU_MIPS32_R1 274 select NO_EXCEPT_FILL 275 select SYS_SUPPORTS_32BIT_KERNEL 276 select SYS_SUPPORTS_LITTLE_ENDIAN 277 select SYS_SUPPORTS_MIPS16 278 select SYS_SUPPORTS_ZBOOT 279 select SYS_HAS_EARLY_PRINTK 280 select USE_GENERIC_EARLY_PRINTK_8250 281 select GPIOLIB 282 select LEDS_GPIO_REGISTER 283 select BCM47XX_NVRAM 284 select BCM47XX_SPROM 285 select BCM47XX_SSB if !BCM47XX_BCMA 286 help 287 Support for BCM47XX based boards 288 289config BCM63XX 290 bool "Broadcom BCM63XX based boards" 291 select BOOT_RAW 292 select CEVT_R4K 293 select CSRC_R4K 294 select SYNC_R4K 295 select DMA_NONCOHERENT 296 select IRQ_MIPS_CPU 297 select SYS_SUPPORTS_32BIT_KERNEL 298 select SYS_SUPPORTS_BIG_ENDIAN 299 select SYS_HAS_EARLY_PRINTK 300 select SWAP_IO_SPACE 301 select GPIOLIB 302 select MIPS_L1_CACHE_SHIFT_4 303 select CLKDEV_LOOKUP 304 select HAVE_LEGACY_CLK 305 help 306 Support for BCM63XX based boards 307 308config MIPS_COBALT 309 bool "Cobalt Server" 310 select CEVT_R4K 311 select CSRC_R4K 312 select CEVT_GT641XX 313 select DMA_NONCOHERENT 314 select FORCE_PCI 315 select I8253 316 select I8259 317 select IRQ_MIPS_CPU 318 select IRQ_GT641XX 319 select PCI_GT64XXX_PCI0 320 select SYS_HAS_CPU_NEVADA 321 select SYS_HAS_EARLY_PRINTK 322 select SYS_SUPPORTS_32BIT_KERNEL 323 select SYS_SUPPORTS_64BIT_KERNEL 324 select SYS_SUPPORTS_LITTLE_ENDIAN 325 select USE_GENERIC_EARLY_PRINTK_8250 326 327config MACH_DECSTATION 328 bool "DECstations" 329 select BOOT_ELF32 330 select CEVT_DS1287 331 select CEVT_R4K if CPU_R4X00 332 select CSRC_IOASIC 333 select CSRC_R4K if CPU_R4X00 334 select CPU_DADDI_WORKAROUNDS if 64BIT 335 select CPU_R4000_WORKAROUNDS if 64BIT 336 select CPU_R4400_WORKAROUNDS if 64BIT 337 select DMA_NONCOHERENT 338 select NO_IOPORT_MAP 339 select IRQ_MIPS_CPU 340 select SYS_HAS_CPU_R3000 341 select SYS_HAS_CPU_R4X00 342 select SYS_SUPPORTS_32BIT_KERNEL 343 select SYS_SUPPORTS_64BIT_KERNEL 344 select SYS_SUPPORTS_LITTLE_ENDIAN 345 select SYS_SUPPORTS_128HZ 346 select SYS_SUPPORTS_256HZ 347 select SYS_SUPPORTS_1024HZ 348 select MIPS_L1_CACHE_SHIFT_4 349 help 350 This enables support for DEC's MIPS based workstations. For details 351 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 352 DECstation porting pages on <http://decstation.unix-ag.org/>. 353 354 If you have one of the following DECstation Models you definitely 355 want to choose R4xx0 for the CPU Type: 356 357 DECstation 5000/50 358 DECstation 5000/150 359 DECstation 5000/260 360 DECsystem 5900/260 361 362 otherwise choose R3000. 363 364config MACH_JAZZ 365 bool "Jazz family of machines" 366 select ARC_MEMORY 367 select ARC_PROMLIB 368 select ARCH_MIGHT_HAVE_PC_PARPORT 369 select ARCH_MIGHT_HAVE_PC_SERIO 370 select DMA_OPS 371 select FW_ARC 372 select FW_ARC32 373 select ARCH_MAY_HAVE_PC_FDC 374 select CEVT_R4K 375 select CSRC_R4K 376 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 377 select GENERIC_ISA_DMA 378 select HAVE_PCSPKR_PLATFORM 379 select IRQ_MIPS_CPU 380 select I8253 381 select I8259 382 select ISA 383 select SYS_HAS_CPU_R4X00 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_64BIT_KERNEL 386 select SYS_SUPPORTS_100HZ 387 help 388 This a family of machines based on the MIPS R4030 chipset which was 389 used by several vendors to build RISC/os and Windows NT workstations. 390 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 391 Olivetti M700-10 workstations. 392 393config MACH_INGENIC 394 bool "Ingenic SoC based machines" 395 select SYS_SUPPORTS_32BIT_KERNEL 396 select SYS_SUPPORTS_LITTLE_ENDIAN 397 select SYS_SUPPORTS_ZBOOT_UART16550 398 select CPU_SUPPORTS_HUGEPAGES 399 select DMA_NONCOHERENT 400 select IRQ_MIPS_CPU 401 select PINCTRL 402 select GPIOLIB 403 select COMMON_CLK 404 select GENERIC_IRQ_CHIP 405 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 406 select USE_OF 407 408config LANTIQ 409 bool "Lantiq based platforms" 410 select DMA_NONCOHERENT 411 select IRQ_MIPS_CPU 412 select CEVT_R4K 413 select CSRC_R4K 414 select SYS_HAS_CPU_MIPS32_R1 415 select SYS_HAS_CPU_MIPS32_R2 416 select SYS_SUPPORTS_BIG_ENDIAN 417 select SYS_SUPPORTS_32BIT_KERNEL 418 select SYS_SUPPORTS_MIPS16 419 select SYS_SUPPORTS_MULTITHREADING 420 select SYS_SUPPORTS_VPE_LOADER 421 select SYS_HAS_EARLY_PRINTK 422 select GPIOLIB 423 select SWAP_IO_SPACE 424 select BOOT_RAW 425 select CLKDEV_LOOKUP 426 select HAVE_LEGACY_CLK 427 select USE_OF 428 select PINCTRL 429 select PINCTRL_LANTIQ 430 select ARCH_HAS_RESET_CONTROLLER 431 select RESET_CONTROLLER 432 433config MACH_LOONGSON32 434 bool "Loongson 32-bit family of machines" 435 select SYS_SUPPORTS_ZBOOT 436 help 437 This enables support for the Loongson-1 family of machines. 438 439 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 440 the Institute of Computing Technology (ICT), Chinese Academy of 441 Sciences (CAS). 442 443config MACH_LOONGSON2EF 444 bool "Loongson-2E/F family of machines" 445 select SYS_SUPPORTS_ZBOOT 446 help 447 This enables the support of early Loongson-2E/F family of machines. 448 449config MACH_LOONGSON64 450 bool "Loongson 64-bit family of machines" 451 select ARCH_SPARSEMEM_ENABLE 452 select ARCH_MIGHT_HAVE_PC_PARPORT 453 select ARCH_MIGHT_HAVE_PC_SERIO 454 select GENERIC_ISA_DMA_SUPPORT_BROKEN 455 select BOOT_ELF32 456 select BOARD_SCACHE 457 select CSRC_R4K 458 select CEVT_R4K 459 select CPU_HAS_WB 460 select FORCE_PCI 461 select ISA 462 select I8259 463 select IRQ_MIPS_CPU 464 select NO_EXCEPT_FILL 465 select NR_CPUS_DEFAULT_64 466 select USE_GENERIC_EARLY_PRINTK_8250 467 select PCI_DRIVERS_GENERIC 468 select SYS_HAS_CPU_LOONGSON64 469 select SYS_HAS_EARLY_PRINTK 470 select SYS_SUPPORTS_SMP 471 select SYS_SUPPORTS_HOTPLUG_CPU 472 select SYS_SUPPORTS_NUMA 473 select SYS_SUPPORTS_64BIT_KERNEL 474 select SYS_SUPPORTS_HIGHMEM 475 select SYS_SUPPORTS_LITTLE_ENDIAN 476 select SYS_SUPPORTS_ZBOOT 477 select ZONE_DMA32 478 select NUMA 479 select COMMON_CLK 480 select USE_OF 481 select BUILTIN_DTB 482 select PCI_HOST_GENERIC 483 help 484 This enables the support of Loongson-2/3 family of machines. 485 486 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 487 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 488 and Loongson-2F which will be removed), developed by the Institute 489 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 490 491config MACH_PISTACHIO 492 bool "IMG Pistachio SoC based boards" 493 select BOOT_ELF32 494 select BOOT_RAW 495 select CEVT_R4K 496 select CLKSRC_MIPS_GIC 497 select COMMON_CLK 498 select CSRC_R4K 499 select DMA_NONCOHERENT 500 select GPIOLIB 501 select IRQ_MIPS_CPU 502 select MFD_SYSCON 503 select MIPS_CPU_SCACHE 504 select MIPS_GIC 505 select PINCTRL 506 select REGULATOR 507 select SYS_HAS_CPU_MIPS32_R2 508 select SYS_SUPPORTS_32BIT_KERNEL 509 select SYS_SUPPORTS_LITTLE_ENDIAN 510 select SYS_SUPPORTS_MIPS_CPS 511 select SYS_SUPPORTS_MULTITHREADING 512 select SYS_SUPPORTS_RELOCATABLE 513 select SYS_SUPPORTS_ZBOOT 514 select SYS_HAS_EARLY_PRINTK 515 select USE_GENERIC_EARLY_PRINTK_8250 516 select USE_OF 517 help 518 This enables support for the IMG Pistachio SoC platform. 519 520config MIPS_MALTA 521 bool "MIPS Malta board" 522 select ARCH_MAY_HAVE_PC_FDC 523 select ARCH_MIGHT_HAVE_PC_PARPORT 524 select ARCH_MIGHT_HAVE_PC_SERIO 525 select BOOT_ELF32 526 select BOOT_RAW 527 select BUILTIN_DTB 528 select CEVT_R4K 529 select CLKSRC_MIPS_GIC 530 select COMMON_CLK 531 select CSRC_R4K 532 select DMA_MAYBE_COHERENT 533 select GENERIC_ISA_DMA 534 select HAVE_PCSPKR_PLATFORM 535 select HAVE_PCI 536 select I8253 537 select I8259 538 select IRQ_MIPS_CPU 539 select MIPS_BONITO64 540 select MIPS_CPU_SCACHE 541 select MIPS_GIC 542 select MIPS_L1_CACHE_SHIFT_6 543 select MIPS_MSC 544 select PCI_GT64XXX_PCI0 545 select SMP_UP if SMP 546 select SWAP_IO_SPACE 547 select SYS_HAS_CPU_MIPS32_R1 548 select SYS_HAS_CPU_MIPS32_R2 549 select SYS_HAS_CPU_MIPS32_R3_5 550 select SYS_HAS_CPU_MIPS32_R5 551 select SYS_HAS_CPU_MIPS32_R6 552 select SYS_HAS_CPU_MIPS64_R1 553 select SYS_HAS_CPU_MIPS64_R2 554 select SYS_HAS_CPU_MIPS64_R6 555 select SYS_HAS_CPU_NEVADA 556 select SYS_HAS_CPU_RM7000 557 select SYS_SUPPORTS_32BIT_KERNEL 558 select SYS_SUPPORTS_64BIT_KERNEL 559 select SYS_SUPPORTS_BIG_ENDIAN 560 select SYS_SUPPORTS_HIGHMEM 561 select SYS_SUPPORTS_LITTLE_ENDIAN 562 select SYS_SUPPORTS_MICROMIPS 563 select SYS_SUPPORTS_MIPS16 564 select SYS_SUPPORTS_MIPS_CMP 565 select SYS_SUPPORTS_MIPS_CPS 566 select SYS_SUPPORTS_MULTITHREADING 567 select SYS_SUPPORTS_RELOCATABLE 568 select SYS_SUPPORTS_SMARTMIPS 569 select SYS_SUPPORTS_VPE_LOADER 570 select SYS_SUPPORTS_ZBOOT 571 select USE_OF 572 select ZONE_DMA32 if 64BIT 573 help 574 This enables support for the MIPS Technologies Malta evaluation 575 board. 576 577config MACH_PIC32 578 bool "Microchip PIC32 Family" 579 help 580 This enables support for the Microchip PIC32 family of platforms. 581 582 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 583 microcontrollers. 584 585config MACH_VR41XX 586 bool "NEC VR4100 series based machines" 587 select CEVT_R4K 588 select CSRC_R4K 589 select SYS_HAS_CPU_VR41XX 590 select SYS_SUPPORTS_MIPS16 591 select GPIOLIB 592 593config NXP_STB220 594 bool "NXP STB220 board" 595 select SOC_PNX833X 596 help 597 Support for NXP Semiconductors STB220 Development Board. 598 599config NXP_STB225 600 bool "NXP 225 board" 601 select SOC_PNX833X 602 select SOC_PNX8335 603 help 604 Support for NXP Semiconductors STB225 Development Board. 605 606config RALINK 607 bool "Ralink based machines" 608 select CEVT_R4K 609 select CSRC_R4K 610 select BOOT_RAW 611 select DMA_NONCOHERENT 612 select IRQ_MIPS_CPU 613 select USE_OF 614 select SYS_HAS_CPU_MIPS32_R1 615 select SYS_HAS_CPU_MIPS32_R2 616 select SYS_SUPPORTS_32BIT_KERNEL 617 select SYS_SUPPORTS_LITTLE_ENDIAN 618 select SYS_SUPPORTS_MIPS16 619 select SYS_HAS_EARLY_PRINTK 620 select CLKDEV_LOOKUP 621 select ARCH_HAS_RESET_CONTROLLER 622 select RESET_CONTROLLER 623 624config SGI_IP22 625 bool "SGI IP22 (Indy/Indigo2)" 626 select ARC_MEMORY 627 select ARC_PROMLIB 628 select FW_ARC 629 select FW_ARC32 630 select ARCH_MIGHT_HAVE_PC_SERIO 631 select BOOT_ELF32 632 select CEVT_R4K 633 select CSRC_R4K 634 select DEFAULT_SGI_PARTITION 635 select DMA_NONCOHERENT 636 select HAVE_EISA 637 select I8253 638 select I8259 639 select IP22_CPU_SCACHE 640 select IRQ_MIPS_CPU 641 select GENERIC_ISA_DMA_SUPPORT_BROKEN 642 select SGI_HAS_I8042 643 select SGI_HAS_INDYDOG 644 select SGI_HAS_HAL2 645 select SGI_HAS_SEEQ 646 select SGI_HAS_WD93 647 select SGI_HAS_ZILOG 648 select SWAP_IO_SPACE 649 select SYS_HAS_CPU_R4X00 650 select SYS_HAS_CPU_R5000 651 select SYS_HAS_EARLY_PRINTK 652 select SYS_SUPPORTS_32BIT_KERNEL 653 select SYS_SUPPORTS_64BIT_KERNEL 654 select SYS_SUPPORTS_BIG_ENDIAN 655 select MIPS_L1_CACHE_SHIFT_7 656 help 657 This are the SGI Indy, Challenge S and Indigo2, as well as certain 658 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 659 that runs on these, say Y here. 660 661config SGI_IP27 662 bool "SGI IP27 (Origin200/2000)" 663 select ARCH_HAS_PHYS_TO_DMA 664 select ARCH_SPARSEMEM_ENABLE 665 select FW_ARC 666 select FW_ARC64 667 select ARC_CMDLINE_ONLY 668 select BOOT_ELF64 669 select DEFAULT_SGI_PARTITION 670 select SYS_HAS_EARLY_PRINTK 671 select HAVE_PCI 672 select IRQ_MIPS_CPU 673 select IRQ_DOMAIN_HIERARCHY 674 select NR_CPUS_DEFAULT_64 675 select PCI_DRIVERS_GENERIC 676 select PCI_XTALK_BRIDGE 677 select SYS_HAS_CPU_R10000 678 select SYS_SUPPORTS_64BIT_KERNEL 679 select SYS_SUPPORTS_BIG_ENDIAN 680 select SYS_SUPPORTS_NUMA 681 select SYS_SUPPORTS_SMP 682 select MIPS_L1_CACHE_SHIFT_7 683 select NUMA 684 help 685 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 686 workstations. To compile a Linux kernel that runs on these, say Y 687 here. 688 689config SGI_IP28 690 bool "SGI IP28 (Indigo2 R10k)" 691 select ARC_MEMORY 692 select ARC_PROMLIB 693 select FW_ARC 694 select FW_ARC64 695 select ARCH_MIGHT_HAVE_PC_SERIO 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HAVE_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 select SYS_HAS_EARLY_PRINTK 715 select SYS_SUPPORTS_64BIT_KERNEL 716 select SYS_SUPPORTS_BIG_ENDIAN 717 select MIPS_L1_CACHE_SHIFT_7 718 help 719 This is the SGI Indigo2 with R10000 processor. To compile a Linux 720 kernel that runs on these, say Y here. 721 722config SGI_IP30 723 bool "SGI IP30 (Octane/Octane2)" 724 select ARCH_HAS_PHYS_TO_DMA 725 select FW_ARC 726 select FW_ARC64 727 select BOOT_ELF64 728 select CEVT_R4K 729 select CSRC_R4K 730 select SYNC_R4K if SMP 731 select ZONE_DMA32 732 select HAVE_PCI 733 select IRQ_MIPS_CPU 734 select IRQ_DOMAIN_HIERARCHY 735 select NR_CPUS_DEFAULT_2 736 select PCI_DRIVERS_GENERIC 737 select PCI_XTALK_BRIDGE 738 select SYS_HAS_EARLY_PRINTK 739 select SYS_HAS_CPU_R10000 740 select SYS_SUPPORTS_64BIT_KERNEL 741 select SYS_SUPPORTS_BIG_ENDIAN 742 select SYS_SUPPORTS_SMP 743 select MIPS_L1_CACHE_SHIFT_7 744 select ARC_MEMORY 745 help 746 These are the SGI Octane and Octane2 graphics workstations. To 747 compile a Linux kernel that runs on these, say Y here. 748 749config SGI_IP32 750 bool "SGI IP32 (O2)" 751 select ARC_MEMORY 752 select ARC_PROMLIB 753 select ARCH_HAS_PHYS_TO_DMA 754 select FW_ARC 755 select FW_ARC32 756 select BOOT_ELF32 757 select CEVT_R4K 758 select CSRC_R4K 759 select DMA_NONCOHERENT 760 select HAVE_PCI 761 select IRQ_MIPS_CPU 762 select R5000_CPU_SCACHE 763 select RM7000_CPU_SCACHE 764 select SYS_HAS_CPU_R5000 765 select SYS_HAS_CPU_R10000 if BROKEN 766 select SYS_HAS_CPU_RM7000 767 select SYS_HAS_CPU_NEVADA 768 select SYS_SUPPORTS_64BIT_KERNEL 769 select SYS_SUPPORTS_BIG_ENDIAN 770 help 771 If you want this kernel to run on SGI O2 workstation, say Y here. 772 773config SIBYTE_CRHINE 774 bool "Sibyte BCM91120C-CRhine" 775 select BOOT_ELF32 776 select SIBYTE_BCM1120 777 select SWAP_IO_SPACE 778 select SYS_HAS_CPU_SB1 779 select SYS_SUPPORTS_BIG_ENDIAN 780 select SYS_SUPPORTS_LITTLE_ENDIAN 781 782config SIBYTE_CARMEL 783 bool "Sibyte BCM91120x-Carmel" 784 select BOOT_ELF32 785 select SIBYTE_BCM1120 786 select SWAP_IO_SPACE 787 select SYS_HAS_CPU_SB1 788 select SYS_SUPPORTS_BIG_ENDIAN 789 select SYS_SUPPORTS_LITTLE_ENDIAN 790 791config SIBYTE_CRHONE 792 bool "Sibyte BCM91125C-CRhone" 793 select BOOT_ELF32 794 select SIBYTE_BCM1125 795 select SWAP_IO_SPACE 796 select SYS_HAS_CPU_SB1 797 select SYS_SUPPORTS_BIG_ENDIAN 798 select SYS_SUPPORTS_HIGHMEM 799 select SYS_SUPPORTS_LITTLE_ENDIAN 800 801config SIBYTE_RHONE 802 bool "Sibyte BCM91125E-Rhone" 803 select BOOT_ELF32 804 select SIBYTE_BCM1125H 805 select SWAP_IO_SPACE 806 select SYS_HAS_CPU_SB1 807 select SYS_SUPPORTS_BIG_ENDIAN 808 select SYS_SUPPORTS_LITTLE_ENDIAN 809 810config SIBYTE_SWARM 811 bool "Sibyte BCM91250A-SWARM" 812 select BOOT_ELF32 813 select HAVE_PATA_PLATFORM 814 select SIBYTE_SB1250 815 select SWAP_IO_SPACE 816 select SYS_HAS_CPU_SB1 817 select SYS_SUPPORTS_BIG_ENDIAN 818 select SYS_SUPPORTS_HIGHMEM 819 select SYS_SUPPORTS_LITTLE_ENDIAN 820 select ZONE_DMA32 if 64BIT 821 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 822 823config SIBYTE_LITTLESUR 824 bool "Sibyte BCM91250C2-LittleSur" 825 select BOOT_ELF32 826 select HAVE_PATA_PLATFORM 827 select SIBYTE_SB1250 828 select SWAP_IO_SPACE 829 select SYS_HAS_CPU_SB1 830 select SYS_SUPPORTS_BIG_ENDIAN 831 select SYS_SUPPORTS_HIGHMEM 832 select SYS_SUPPORTS_LITTLE_ENDIAN 833 select ZONE_DMA32 if 64BIT 834 835config SIBYTE_SENTOSA 836 bool "Sibyte BCM91250E-Sentosa" 837 select BOOT_ELF32 838 select SIBYTE_SB1250 839 select SWAP_IO_SPACE 840 select SYS_HAS_CPU_SB1 841 select SYS_SUPPORTS_BIG_ENDIAN 842 select SYS_SUPPORTS_LITTLE_ENDIAN 843 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 844 845config SIBYTE_BIGSUR 846 bool "Sibyte BCM91480B-BigSur" 847 select BOOT_ELF32 848 select NR_CPUS_DEFAULT_4 849 select SIBYTE_BCM1x80 850 select SWAP_IO_SPACE 851 select SYS_HAS_CPU_SB1 852 select SYS_SUPPORTS_BIG_ENDIAN 853 select SYS_SUPPORTS_HIGHMEM 854 select SYS_SUPPORTS_LITTLE_ENDIAN 855 select ZONE_DMA32 if 64BIT 856 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 857 858config SNI_RM 859 bool "SNI RM200/300/400" 860 select ARC_MEMORY 861 select ARC_PROMLIB 862 select FW_ARC if CPU_LITTLE_ENDIAN 863 select FW_ARC32 if CPU_LITTLE_ENDIAN 864 select FW_SNIPROM if CPU_BIG_ENDIAN 865 select ARCH_MAY_HAVE_PC_FDC 866 select ARCH_MIGHT_HAVE_PC_PARPORT 867 select ARCH_MIGHT_HAVE_PC_SERIO 868 select BOOT_ELF32 869 select CEVT_R4K 870 select CSRC_R4K 871 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 872 select DMA_NONCOHERENT 873 select GENERIC_ISA_DMA 874 select HAVE_EISA 875 select HAVE_PCSPKR_PLATFORM 876 select HAVE_PCI 877 select IRQ_MIPS_CPU 878 select I8253 879 select I8259 880 select ISA 881 select MIPS_L1_CACHE_SHIFT_6 882 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 883 select SYS_HAS_CPU_R4X00 884 select SYS_HAS_CPU_R5000 885 select SYS_HAS_CPU_R10000 886 select R5000_CPU_SCACHE 887 select SYS_HAS_EARLY_PRINTK 888 select SYS_SUPPORTS_32BIT_KERNEL 889 select SYS_SUPPORTS_64BIT_KERNEL 890 select SYS_SUPPORTS_BIG_ENDIAN 891 select SYS_SUPPORTS_HIGHMEM 892 select SYS_SUPPORTS_LITTLE_ENDIAN 893 help 894 The SNI RM200/300/400 are MIPS-based machines manufactured by 895 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 896 Technology and now in turn merged with Fujitsu. Say Y here to 897 support this machine type. 898 899config MACH_TX39XX 900 bool "Toshiba TX39 series based machines" 901 902config MACH_TX49XX 903 bool "Toshiba TX49 series based machines" 904 905config MIKROTIK_RB532 906 bool "Mikrotik RB532 boards" 907 select CEVT_R4K 908 select CSRC_R4K 909 select DMA_NONCOHERENT 910 select HAVE_PCI 911 select IRQ_MIPS_CPU 912 select SYS_HAS_CPU_MIPS32_R1 913 select SYS_SUPPORTS_32BIT_KERNEL 914 select SYS_SUPPORTS_LITTLE_ENDIAN 915 select SWAP_IO_SPACE 916 select BOOT_RAW 917 select GPIOLIB 918 select MIPS_L1_CACHE_SHIFT_4 919 help 920 Support the Mikrotik(tm) RouterBoard 532 series, 921 based on the IDT RC32434 SoC. 922 923config CAVIUM_OCTEON_SOC 924 bool "Cavium Networks Octeon SoC based boards" 925 select CEVT_R4K 926 select ARCH_HAS_PHYS_TO_DMA 927 select HAVE_RAPIDIO 928 select PHYS_ADDR_T_64BIT 929 select SYS_SUPPORTS_64BIT_KERNEL 930 select SYS_SUPPORTS_BIG_ENDIAN 931 select EDAC_SUPPORT 932 select EDAC_ATOMIC_SCRUB 933 select SYS_SUPPORTS_LITTLE_ENDIAN 934 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 935 select SYS_HAS_EARLY_PRINTK 936 select SYS_HAS_CPU_CAVIUM_OCTEON 937 select HAVE_PCI 938 select HAVE_PLAT_DELAY 939 select HAVE_PLAT_FW_INIT_CMDLINE 940 select HAVE_PLAT_MEMCPY 941 select ZONE_DMA32 942 select HOLES_IN_ZONE 943 select GPIOLIB 944 select USE_OF 945 select ARCH_SPARSEMEM_ENABLE 946 select SYS_SUPPORTS_SMP 947 select NR_CPUS_DEFAULT_64 948 select MIPS_NR_CPU_NR_MAP_1024 949 select BUILTIN_DTB 950 select MTD_COMPLEX_MAPPINGS 951 select SWIOTLB 952 select SYS_SUPPORTS_RELOCATABLE 953 help 954 This option supports all of the Octeon reference boards from Cavium 955 Networks. It builds a kernel that dynamically determines the Octeon 956 CPU type and supports all known board reference implementations. 957 Some of the supported boards are: 958 EBT3000 959 EBH3000 960 EBH3100 961 Thunder 962 Kodama 963 Hikari 964 Say Y here for most Octeon reference boards. 965 966config NLM_XLR_BOARD 967 bool "Netlogic XLR/XLS based systems" 968 select BOOT_ELF32 969 select NLM_COMMON 970 select SYS_HAS_CPU_XLR 971 select SYS_SUPPORTS_SMP 972 select HAVE_PCI 973 select SWAP_IO_SPACE 974 select SYS_SUPPORTS_32BIT_KERNEL 975 select SYS_SUPPORTS_64BIT_KERNEL 976 select PHYS_ADDR_T_64BIT 977 select SYS_SUPPORTS_BIG_ENDIAN 978 select SYS_SUPPORTS_HIGHMEM 979 select NR_CPUS_DEFAULT_32 980 select CEVT_R4K 981 select CSRC_R4K 982 select IRQ_MIPS_CPU 983 select ZONE_DMA32 if 64BIT 984 select SYNC_R4K 985 select SYS_HAS_EARLY_PRINTK 986 select SYS_SUPPORTS_ZBOOT 987 select SYS_SUPPORTS_ZBOOT_UART16550 988 help 989 Support for systems based on Netlogic XLR and XLS processors. 990 Say Y here if you have a XLR or XLS based board. 991 992config NLM_XLP_BOARD 993 bool "Netlogic XLP based systems" 994 select BOOT_ELF32 995 select NLM_COMMON 996 select SYS_HAS_CPU_XLP 997 select SYS_SUPPORTS_SMP 998 select HAVE_PCI 999 select SYS_SUPPORTS_32BIT_KERNEL 1000 select SYS_SUPPORTS_64BIT_KERNEL 1001 select PHYS_ADDR_T_64BIT 1002 select GPIOLIB 1003 select SYS_SUPPORTS_BIG_ENDIAN 1004 select SYS_SUPPORTS_LITTLE_ENDIAN 1005 select SYS_SUPPORTS_HIGHMEM 1006 select NR_CPUS_DEFAULT_32 1007 select CEVT_R4K 1008 select CSRC_R4K 1009 select IRQ_MIPS_CPU 1010 select ZONE_DMA32 if 64BIT 1011 select SYNC_R4K 1012 select SYS_HAS_EARLY_PRINTK 1013 select USE_OF 1014 select SYS_SUPPORTS_ZBOOT 1015 select SYS_SUPPORTS_ZBOOT_UART16550 1016 help 1017 This board is based on Netlogic XLP Processor. 1018 Say Y here if you have a XLP based board. 1019 1020endchoice 1021 1022source "arch/mips/alchemy/Kconfig" 1023source "arch/mips/ath25/Kconfig" 1024source "arch/mips/ath79/Kconfig" 1025source "arch/mips/bcm47xx/Kconfig" 1026source "arch/mips/bcm63xx/Kconfig" 1027source "arch/mips/bmips/Kconfig" 1028source "arch/mips/generic/Kconfig" 1029source "arch/mips/jazz/Kconfig" 1030source "arch/mips/jz4740/Kconfig" 1031source "arch/mips/lantiq/Kconfig" 1032source "arch/mips/pic32/Kconfig" 1033source "arch/mips/pistachio/Kconfig" 1034source "arch/mips/ralink/Kconfig" 1035source "arch/mips/sgi-ip27/Kconfig" 1036source "arch/mips/sibyte/Kconfig" 1037source "arch/mips/txx9/Kconfig" 1038source "arch/mips/vr41xx/Kconfig" 1039source "arch/mips/cavium-octeon/Kconfig" 1040source "arch/mips/loongson2ef/Kconfig" 1041source "arch/mips/loongson32/Kconfig" 1042source "arch/mips/loongson64/Kconfig" 1043source "arch/mips/netlogic/Kconfig" 1044 1045endmenu 1046 1047config GENERIC_HWEIGHT 1048 bool 1049 default y 1050 1051config GENERIC_CALIBRATE_DELAY 1052 bool 1053 default y 1054 1055config SCHED_OMIT_FRAME_POINTER 1056 bool 1057 default y 1058 1059# 1060# Select some configuration options automatically based on user selections. 1061# 1062config FW_ARC 1063 bool 1064 1065config ARCH_MAY_HAVE_PC_FDC 1066 bool 1067 1068config BOOT_RAW 1069 bool 1070 1071config CEVT_BCM1480 1072 bool 1073 1074config CEVT_DS1287 1075 bool 1076 1077config CEVT_GT641XX 1078 bool 1079 1080config CEVT_R4K 1081 bool 1082 1083config CEVT_SB1250 1084 bool 1085 1086config CEVT_TXX9 1087 bool 1088 1089config CSRC_BCM1480 1090 bool 1091 1092config CSRC_IOASIC 1093 bool 1094 1095config CSRC_R4K 1096 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1097 bool 1098 1099config CSRC_SB1250 1100 bool 1101 1102config MIPS_CLOCK_VSYSCALL 1103 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1104 1105config GPIO_TXX9 1106 select GPIOLIB 1107 bool 1108 1109config FW_CFE 1110 bool 1111 1112config ARCH_SUPPORTS_UPROBES 1113 bool 1114 1115config DMA_MAYBE_COHERENT 1116 select ARCH_HAS_DMA_COHERENCE_H 1117 select DMA_NONCOHERENT 1118 bool 1119 1120config DMA_PERDEV_COHERENT 1121 bool 1122 select ARCH_HAS_SETUP_DMA_OPS 1123 select DMA_NONCOHERENT 1124 1125config DMA_NONCOHERENT 1126 bool 1127 # 1128 # MIPS allows mixing "slightly different" Cacheability and Coherency 1129 # Attribute bits. It is believed that the uncached access through 1130 # KSEG1 and the implementation specific "uncached accelerated" used 1131 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1132 # significant advantages. 1133 # 1134 select ARCH_HAS_DMA_WRITE_COMBINE 1135 select ARCH_HAS_DMA_PREP_COHERENT 1136 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1137 select ARCH_HAS_DMA_SET_UNCACHED 1138 select DMA_NONCOHERENT_MMAP 1139 select DMA_NONCOHERENT_CACHE_SYNC 1140 select NEED_DMA_MAP_STATE 1141 1142config SYS_HAS_EARLY_PRINTK 1143 bool 1144 1145config SYS_SUPPORTS_HOTPLUG_CPU 1146 bool 1147 1148config MIPS_BONITO64 1149 bool 1150 1151config MIPS_MSC 1152 bool 1153 1154config SYNC_R4K 1155 bool 1156 1157config NO_IOPORT_MAP 1158 def_bool n 1159 1160config GENERIC_CSUM 1161 def_bool CPU_NO_LOAD_STORE_LR 1162 1163config GENERIC_ISA_DMA 1164 bool 1165 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1166 select ISA_DMA_API 1167 1168config GENERIC_ISA_DMA_SUPPORT_BROKEN 1169 bool 1170 select GENERIC_ISA_DMA 1171 1172config HAVE_PLAT_DELAY 1173 bool 1174 1175config HAVE_PLAT_FW_INIT_CMDLINE 1176 bool 1177 1178config HAVE_PLAT_MEMCPY 1179 bool 1180 1181config ISA_DMA_API 1182 bool 1183 1184config HOLES_IN_ZONE 1185 bool 1186 1187config SYS_SUPPORTS_RELOCATABLE 1188 bool 1189 help 1190 Selected if the platform supports relocating the kernel. 1191 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1192 to allow access to command line and entropy sources. 1193 1194config MIPS_CBPF_JIT 1195 def_bool y 1196 depends on BPF_JIT && HAVE_CBPF_JIT 1197 1198config MIPS_EBPF_JIT 1199 def_bool y 1200 depends on BPF_JIT && HAVE_EBPF_JIT 1201 1202 1203# 1204# Endianness selection. Sufficiently obscure so many users don't know what to 1205# answer,so we try hard to limit the available choices. Also the use of a 1206# choice statement should be more obvious to the user. 1207# 1208choice 1209 prompt "Endianness selection" 1210 help 1211 Some MIPS machines can be configured for either little or big endian 1212 byte order. These modes require different kernels and a different 1213 Linux distribution. In general there is one preferred byteorder for a 1214 particular system but some systems are just as commonly used in the 1215 one or the other endianness. 1216 1217config CPU_BIG_ENDIAN 1218 bool "Big endian" 1219 depends on SYS_SUPPORTS_BIG_ENDIAN 1220 1221config CPU_LITTLE_ENDIAN 1222 bool "Little endian" 1223 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1224 1225endchoice 1226 1227config EXPORT_UASM 1228 bool 1229 1230config SYS_SUPPORTS_APM_EMULATION 1231 bool 1232 1233config SYS_SUPPORTS_BIG_ENDIAN 1234 bool 1235 1236config SYS_SUPPORTS_LITTLE_ENDIAN 1237 bool 1238 1239config SYS_SUPPORTS_HUGETLBFS 1240 bool 1241 depends on CPU_SUPPORTS_HUGEPAGES 1242 default y 1243 1244config MIPS_HUGE_TLB_SUPPORT 1245 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1246 1247config IRQ_CPU_RM7K 1248 bool 1249 1250config IRQ_MSP_SLP 1251 bool 1252 1253config IRQ_MSP_CIC 1254 bool 1255 1256config IRQ_TXX9 1257 bool 1258 1259config IRQ_GT641XX 1260 bool 1261 1262config PCI_GT64XXX_PCI0 1263 bool 1264 1265config PCI_XTALK_BRIDGE 1266 bool 1267 1268config NO_EXCEPT_FILL 1269 bool 1270 1271config SOC_PNX833X 1272 bool 1273 select CEVT_R4K 1274 select CSRC_R4K 1275 select IRQ_MIPS_CPU 1276 select DMA_NONCOHERENT 1277 select SYS_HAS_CPU_MIPS32_R2 1278 select SYS_SUPPORTS_32BIT_KERNEL 1279 select SYS_SUPPORTS_LITTLE_ENDIAN 1280 select SYS_SUPPORTS_BIG_ENDIAN 1281 select SYS_SUPPORTS_MIPS16 1282 select CPU_MIPSR2_IRQ_VI 1283 1284config SOC_PNX8335 1285 bool 1286 select SOC_PNX833X 1287 1288config MIPS_SPRAM 1289 bool 1290 1291config SWAP_IO_SPACE 1292 bool 1293 1294config SGI_HAS_INDYDOG 1295 bool 1296 1297config SGI_HAS_HAL2 1298 bool 1299 1300config SGI_HAS_SEEQ 1301 bool 1302 1303config SGI_HAS_WD93 1304 bool 1305 1306config SGI_HAS_ZILOG 1307 bool 1308 1309config SGI_HAS_I8042 1310 bool 1311 1312config DEFAULT_SGI_PARTITION 1313 bool 1314 1315config FW_ARC32 1316 bool 1317 1318config FW_SNIPROM 1319 bool 1320 1321config BOOT_ELF32 1322 bool 1323 1324config MIPS_L1_CACHE_SHIFT_4 1325 bool 1326 1327config MIPS_L1_CACHE_SHIFT_5 1328 bool 1329 1330config MIPS_L1_CACHE_SHIFT_6 1331 bool 1332 1333config MIPS_L1_CACHE_SHIFT_7 1334 bool 1335 1336config MIPS_L1_CACHE_SHIFT 1337 int 1338 default "7" if MIPS_L1_CACHE_SHIFT_7 1339 default "6" if MIPS_L1_CACHE_SHIFT_6 1340 default "5" if MIPS_L1_CACHE_SHIFT_5 1341 default "4" if MIPS_L1_CACHE_SHIFT_4 1342 default "5" 1343 1344config ARC_CMDLINE_ONLY 1345 bool 1346 1347config ARC_CONSOLE 1348 bool "ARC console support" 1349 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1350 1351config ARC_MEMORY 1352 bool 1353 1354config ARC_PROMLIB 1355 bool 1356 1357config FW_ARC64 1358 bool 1359 1360config BOOT_ELF64 1361 bool 1362 1363menu "CPU selection" 1364 1365choice 1366 prompt "CPU type" 1367 default CPU_R4X00 1368 1369config CPU_LOONGSON64 1370 bool "Loongson 64-bit CPU" 1371 depends on SYS_HAS_CPU_LOONGSON64 1372 select ARCH_HAS_PHYS_TO_DMA 1373 select CPU_MIPSR2 1374 select CPU_HAS_PREFETCH 1375 select CPU_SUPPORTS_64BIT_KERNEL 1376 select CPU_SUPPORTS_HIGHMEM 1377 select CPU_SUPPORTS_HUGEPAGES 1378 select CPU_SUPPORTS_MSA 1379 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1380 select CPU_MIPSR2_IRQ_VI 1381 select WEAK_ORDERING 1382 select WEAK_REORDERING_BEYOND_LLSC 1383 select MIPS_ASID_BITS_VARIABLE 1384 select MIPS_PGD_C0_CONTEXT 1385 select MIPS_L1_CACHE_SHIFT_6 1386 select GPIOLIB 1387 select SWIOTLB 1388 select HAVE_KVM 1389 help 1390 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1391 cores implements the MIPS64R2 instruction set with many extensions, 1392 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1393 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1394 Loongson-2E/2F is not covered here and will be removed in future. 1395 1396config LOONGSON3_ENHANCEMENT 1397 bool "New Loongson-3 CPU Enhancements" 1398 default n 1399 depends on CPU_LOONGSON64 1400 help 1401 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1402 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1403 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1404 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1405 Fast TLB refill support, etc. 1406 1407 This option enable those enhancements which are not probed at run 1408 time. If you want a generic kernel to run on all Loongson 3 machines, 1409 please say 'N' here. If you want a high-performance kernel to run on 1410 new Loongson-3 machines only, please say 'Y' here. 1411 1412config CPU_LOONGSON3_WORKAROUNDS 1413 bool "Old Loongson-3 LLSC Workarounds" 1414 default y if SMP 1415 depends on CPU_LOONGSON64 1416 help 1417 Loongson-3 processors have the llsc issues which require workarounds. 1418 Without workarounds the system may hang unexpectedly. 1419 1420 Newer Loongson-3 will fix these issues and no workarounds are needed. 1421 The workarounds have no significant side effect on them but may 1422 decrease the performance of the system so this option should be 1423 disabled unless the kernel is intended to be run on old systems. 1424 1425 If unsure, please say Y. 1426 1427config CPU_LOONGSON3_CPUCFG_EMULATION 1428 bool "Emulate the CPUCFG instruction on older Loongson cores" 1429 default y 1430 depends on CPU_LOONGSON64 1431 help 1432 Loongson-3A R4 and newer have the CPUCFG instruction available for 1433 userland to query CPU capabilities, much like CPUID on x86. This 1434 option provides emulation of the instruction on older Loongson 1435 cores, back to Loongson-3A1000. 1436 1437 If unsure, please say Y. 1438 1439config CPU_LOONGSON2E 1440 bool "Loongson 2E" 1441 depends on SYS_HAS_CPU_LOONGSON2E 1442 select CPU_LOONGSON2EF 1443 help 1444 The Loongson 2E processor implements the MIPS III instruction set 1445 with many extensions. 1446 1447 It has an internal FPGA northbridge, which is compatible to 1448 bonito64. 1449 1450config CPU_LOONGSON2F 1451 bool "Loongson 2F" 1452 depends on SYS_HAS_CPU_LOONGSON2F 1453 select CPU_LOONGSON2EF 1454 select GPIOLIB 1455 help 1456 The Loongson 2F processor implements the MIPS III instruction set 1457 with many extensions. 1458 1459 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1460 have a similar programming interface with FPGA northbridge used in 1461 Loongson2E. 1462 1463config CPU_LOONGSON1B 1464 bool "Loongson 1B" 1465 depends on SYS_HAS_CPU_LOONGSON1B 1466 select CPU_LOONGSON32 1467 select LEDS_GPIO_REGISTER 1468 help 1469 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1470 Release 1 instruction set and part of the MIPS32 Release 2 1471 instruction set. 1472 1473config CPU_LOONGSON1C 1474 bool "Loongson 1C" 1475 depends on SYS_HAS_CPU_LOONGSON1C 1476 select CPU_LOONGSON32 1477 select LEDS_GPIO_REGISTER 1478 help 1479 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1480 Release 1 instruction set and part of the MIPS32 Release 2 1481 instruction set. 1482 1483config CPU_MIPS32_R1 1484 bool "MIPS32 Release 1" 1485 depends on SYS_HAS_CPU_MIPS32_R1 1486 select CPU_HAS_PREFETCH 1487 select CPU_SUPPORTS_32BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 help 1490 Choose this option to build a kernel for release 1 or later of the 1491 MIPS32 architecture. Most modern embedded systems with a 32-bit 1492 MIPS processor are based on a MIPS32 processor. If you know the 1493 specific type of processor in your system, choose those that one 1494 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1495 Release 2 of the MIPS32 architecture is available since several 1496 years so chances are you even have a MIPS32 Release 2 processor 1497 in which case you should choose CPU_MIPS32_R2 instead for better 1498 performance. 1499 1500config CPU_MIPS32_R2 1501 bool "MIPS32 Release 2" 1502 depends on SYS_HAS_CPU_MIPS32_R2 1503 select CPU_HAS_PREFETCH 1504 select CPU_SUPPORTS_32BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 select CPU_SUPPORTS_MSA 1507 select HAVE_KVM 1508 help 1509 Choose this option to build a kernel for release 2 or later of the 1510 MIPS32 architecture. Most modern embedded systems with a 32-bit 1511 MIPS processor are based on a MIPS32 processor. If you know the 1512 specific type of processor in your system, choose those that one 1513 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1514 1515config CPU_MIPS32_R5 1516 bool "MIPS32 Release 5" 1517 depends on SYS_HAS_CPU_MIPS32_R5 1518 select CPU_HAS_PREFETCH 1519 select CPU_SUPPORTS_32BIT_KERNEL 1520 select CPU_SUPPORTS_HIGHMEM 1521 select CPU_SUPPORTS_MSA 1522 select HAVE_KVM 1523 select MIPS_O32_FP64_SUPPORT 1524 help 1525 Choose this option to build a kernel for release 5 or later of the 1526 MIPS32 architecture. New MIPS processors, starting with the Warrior 1527 family, are based on a MIPS32r5 processor. If you own an older 1528 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1529 1530config CPU_MIPS32_R6 1531 bool "MIPS32 Release 6" 1532 depends on SYS_HAS_CPU_MIPS32_R6 1533 select CPU_HAS_PREFETCH 1534 select CPU_NO_LOAD_STORE_LR 1535 select CPU_SUPPORTS_32BIT_KERNEL 1536 select CPU_SUPPORTS_HIGHMEM 1537 select CPU_SUPPORTS_MSA 1538 select HAVE_KVM 1539 select MIPS_O32_FP64_SUPPORT 1540 help 1541 Choose this option to build a kernel for release 6 or later of the 1542 MIPS32 architecture. New MIPS processors, starting with the Warrior 1543 family, are based on a MIPS32r6 processor. If you own an older 1544 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1545 1546config CPU_MIPS64_R1 1547 bool "MIPS64 Release 1" 1548 depends on SYS_HAS_CPU_MIPS64_R1 1549 select CPU_HAS_PREFETCH 1550 select CPU_SUPPORTS_32BIT_KERNEL 1551 select CPU_SUPPORTS_64BIT_KERNEL 1552 select CPU_SUPPORTS_HIGHMEM 1553 select CPU_SUPPORTS_HUGEPAGES 1554 help 1555 Choose this option to build a kernel for release 1 or later of the 1556 MIPS64 architecture. Many modern embedded systems with a 64-bit 1557 MIPS processor are based on a MIPS64 processor. If you know the 1558 specific type of processor in your system, choose those that one 1559 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1560 Release 2 of the MIPS64 architecture is available since several 1561 years so chances are you even have a MIPS64 Release 2 processor 1562 in which case you should choose CPU_MIPS64_R2 instead for better 1563 performance. 1564 1565config CPU_MIPS64_R2 1566 bool "MIPS64 Release 2" 1567 depends on SYS_HAS_CPU_MIPS64_R2 1568 select CPU_HAS_PREFETCH 1569 select CPU_SUPPORTS_32BIT_KERNEL 1570 select CPU_SUPPORTS_64BIT_KERNEL 1571 select CPU_SUPPORTS_HIGHMEM 1572 select CPU_SUPPORTS_HUGEPAGES 1573 select CPU_SUPPORTS_MSA 1574 select HAVE_KVM 1575 help 1576 Choose this option to build a kernel for release 2 or later of the 1577 MIPS64 architecture. Many modern embedded systems with a 64-bit 1578 MIPS processor are based on a MIPS64 processor. If you know the 1579 specific type of processor in your system, choose those that one 1580 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1581 1582config CPU_MIPS64_R5 1583 bool "MIPS64 Release 5" 1584 depends on SYS_HAS_CPU_MIPS64_R5 1585 select CPU_HAS_PREFETCH 1586 select CPU_SUPPORTS_32BIT_KERNEL 1587 select CPU_SUPPORTS_64BIT_KERNEL 1588 select CPU_SUPPORTS_HIGHMEM 1589 select CPU_SUPPORTS_HUGEPAGES 1590 select CPU_SUPPORTS_MSA 1591 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1592 select HAVE_KVM 1593 help 1594 Choose this option to build a kernel for release 5 or later of the 1595 MIPS64 architecture. This is a intermediate MIPS architecture 1596 release partly implementing release 6 features. Though there is no 1597 any hardware known to be based on this release. 1598 1599config CPU_MIPS64_R6 1600 bool "MIPS64 Release 6" 1601 depends on SYS_HAS_CPU_MIPS64_R6 1602 select CPU_HAS_PREFETCH 1603 select CPU_NO_LOAD_STORE_LR 1604 select CPU_SUPPORTS_32BIT_KERNEL 1605 select CPU_SUPPORTS_64BIT_KERNEL 1606 select CPU_SUPPORTS_HIGHMEM 1607 select CPU_SUPPORTS_HUGEPAGES 1608 select CPU_SUPPORTS_MSA 1609 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1610 select HAVE_KVM 1611 help 1612 Choose this option to build a kernel for release 6 or later of the 1613 MIPS64 architecture. New MIPS processors, starting with the Warrior 1614 family, are based on a MIPS64r6 processor. If you own an older 1615 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1616 1617config CPU_P5600 1618 bool "MIPS Warrior P5600" 1619 depends on SYS_HAS_CPU_P5600 1620 select CPU_HAS_PREFETCH 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_HIGHMEM 1623 select CPU_SUPPORTS_MSA 1624 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1625 select CPU_SUPPORTS_CPUFREQ 1626 select CPU_MIPSR2_IRQ_VI 1627 select CPU_MIPSR2_IRQ_EI 1628 select HAVE_KVM 1629 select MIPS_O32_FP64_SUPPORT 1630 help 1631 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1632 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1633 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1634 level features like up to six P5600 calculation cores, CM2 with L2 1635 cache, IOCU/IOMMU (though might be unused depending on the system- 1636 specific IP core configuration), GIC, CPC, virtualisation module, 1637 eJTAG and PDtrace. 1638 1639config CPU_R3000 1640 bool "R3000" 1641 depends on SYS_HAS_CPU_R3000 1642 select CPU_HAS_WB 1643 select CPU_R3K_TLB 1644 select CPU_SUPPORTS_32BIT_KERNEL 1645 select CPU_SUPPORTS_HIGHMEM 1646 help 1647 Please make sure to pick the right CPU type. Linux/MIPS is not 1648 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1649 *not* work on R4000 machines and vice versa. However, since most 1650 of the supported machines have an R4000 (or similar) CPU, R4x00 1651 might be a safe bet. If the resulting kernel does not work, 1652 try to recompile with R3000. 1653 1654config CPU_TX39XX 1655 bool "R39XX" 1656 depends on SYS_HAS_CPU_TX39XX 1657 select CPU_SUPPORTS_32BIT_KERNEL 1658 select CPU_R3K_TLB 1659 1660config CPU_VR41XX 1661 bool "R41xx" 1662 depends on SYS_HAS_CPU_VR41XX 1663 select CPU_SUPPORTS_32BIT_KERNEL 1664 select CPU_SUPPORTS_64BIT_KERNEL 1665 help 1666 The options selects support for the NEC VR4100 series of processors. 1667 Only choose this option if you have one of these processors as a 1668 kernel built with this option will not run on any other type of 1669 processor or vice versa. 1670 1671config CPU_R4X00 1672 bool "R4x00" 1673 depends on SYS_HAS_CPU_R4X00 1674 select CPU_SUPPORTS_32BIT_KERNEL 1675 select CPU_SUPPORTS_64BIT_KERNEL 1676 select CPU_SUPPORTS_HUGEPAGES 1677 help 1678 MIPS Technologies R4000-series processors other than 4300, including 1679 the R4000, R4400, R4600, and 4700. 1680 1681config CPU_TX49XX 1682 bool "R49XX" 1683 depends on SYS_HAS_CPU_TX49XX 1684 select CPU_HAS_PREFETCH 1685 select CPU_SUPPORTS_32BIT_KERNEL 1686 select CPU_SUPPORTS_64BIT_KERNEL 1687 select CPU_SUPPORTS_HUGEPAGES 1688 1689config CPU_R5000 1690 bool "R5000" 1691 depends on SYS_HAS_CPU_R5000 1692 select CPU_SUPPORTS_32BIT_KERNEL 1693 select CPU_SUPPORTS_64BIT_KERNEL 1694 select CPU_SUPPORTS_HUGEPAGES 1695 help 1696 MIPS Technologies R5000-series processors other than the Nevada. 1697 1698config CPU_R5500 1699 bool "R5500" 1700 depends on SYS_HAS_CPU_R5500 1701 select CPU_SUPPORTS_32BIT_KERNEL 1702 select CPU_SUPPORTS_64BIT_KERNEL 1703 select CPU_SUPPORTS_HUGEPAGES 1704 help 1705 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1706 instruction set. 1707 1708config CPU_NEVADA 1709 bool "RM52xx" 1710 depends on SYS_HAS_CPU_NEVADA 1711 select CPU_SUPPORTS_32BIT_KERNEL 1712 select CPU_SUPPORTS_64BIT_KERNEL 1713 select CPU_SUPPORTS_HUGEPAGES 1714 help 1715 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1716 1717config CPU_R10000 1718 bool "R10000" 1719 depends on SYS_HAS_CPU_R10000 1720 select CPU_HAS_PREFETCH 1721 select CPU_SUPPORTS_32BIT_KERNEL 1722 select CPU_SUPPORTS_64BIT_KERNEL 1723 select CPU_SUPPORTS_HIGHMEM 1724 select CPU_SUPPORTS_HUGEPAGES 1725 help 1726 MIPS Technologies R10000-series processors. 1727 1728config CPU_RM7000 1729 bool "RM7000" 1730 depends on SYS_HAS_CPU_RM7000 1731 select CPU_HAS_PREFETCH 1732 select CPU_SUPPORTS_32BIT_KERNEL 1733 select CPU_SUPPORTS_64BIT_KERNEL 1734 select CPU_SUPPORTS_HIGHMEM 1735 select CPU_SUPPORTS_HUGEPAGES 1736 1737config CPU_SB1 1738 bool "SB1" 1739 depends on SYS_HAS_CPU_SB1 1740 select CPU_SUPPORTS_32BIT_KERNEL 1741 select CPU_SUPPORTS_64BIT_KERNEL 1742 select CPU_SUPPORTS_HIGHMEM 1743 select CPU_SUPPORTS_HUGEPAGES 1744 select WEAK_ORDERING 1745 1746config CPU_CAVIUM_OCTEON 1747 bool "Cavium Octeon processor" 1748 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1749 select CPU_HAS_PREFETCH 1750 select CPU_SUPPORTS_64BIT_KERNEL 1751 select WEAK_ORDERING 1752 select CPU_SUPPORTS_HIGHMEM 1753 select CPU_SUPPORTS_HUGEPAGES 1754 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1755 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1756 select MIPS_L1_CACHE_SHIFT_7 1757 select HAVE_KVM 1758 help 1759 The Cavium Octeon processor is a highly integrated chip containing 1760 many ethernet hardware widgets for networking tasks. The processor 1761 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1762 Full details can be found at http://www.caviumnetworks.com. 1763 1764config CPU_BMIPS 1765 bool "Broadcom BMIPS" 1766 depends on SYS_HAS_CPU_BMIPS 1767 select CPU_MIPS32 1768 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1769 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1770 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1771 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1772 select CPU_SUPPORTS_32BIT_KERNEL 1773 select DMA_NONCOHERENT 1774 select IRQ_MIPS_CPU 1775 select SWAP_IO_SPACE 1776 select WEAK_ORDERING 1777 select CPU_SUPPORTS_HIGHMEM 1778 select CPU_HAS_PREFETCH 1779 select CPU_SUPPORTS_CPUFREQ 1780 select MIPS_EXTERNAL_TIMER 1781 help 1782 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1783 1784config CPU_XLR 1785 bool "Netlogic XLR SoC" 1786 depends on SYS_HAS_CPU_XLR 1787 select CPU_SUPPORTS_32BIT_KERNEL 1788 select CPU_SUPPORTS_64BIT_KERNEL 1789 select CPU_SUPPORTS_HIGHMEM 1790 select CPU_SUPPORTS_HUGEPAGES 1791 select WEAK_ORDERING 1792 select WEAK_REORDERING_BEYOND_LLSC 1793 help 1794 Netlogic Microsystems XLR/XLS processors. 1795 1796config CPU_XLP 1797 bool "Netlogic XLP SoC" 1798 depends on SYS_HAS_CPU_XLP 1799 select CPU_SUPPORTS_32BIT_KERNEL 1800 select CPU_SUPPORTS_64BIT_KERNEL 1801 select CPU_SUPPORTS_HIGHMEM 1802 select WEAK_ORDERING 1803 select WEAK_REORDERING_BEYOND_LLSC 1804 select CPU_HAS_PREFETCH 1805 select CPU_MIPSR2 1806 select CPU_SUPPORTS_HUGEPAGES 1807 select MIPS_ASID_BITS_VARIABLE 1808 help 1809 Netlogic Microsystems XLP processors. 1810endchoice 1811 1812config CPU_MIPS32_3_5_FEATURES 1813 bool "MIPS32 Release 3.5 Features" 1814 depends on SYS_HAS_CPU_MIPS32_R3_5 1815 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1816 CPU_P5600 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 || CPU_MIPS32_R5 || CPU_P5600 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_P5600 1992 bool 1993 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1994 1995config SYS_HAS_CPU_R3000 1996 bool 1997 1998config SYS_HAS_CPU_TX39XX 1999 bool 2000 2001config SYS_HAS_CPU_VR41XX 2002 bool 2003 2004config SYS_HAS_CPU_R4X00 2005 bool 2006 2007config SYS_HAS_CPU_TX49XX 2008 bool 2009 2010config SYS_HAS_CPU_R5000 2011 bool 2012 2013config SYS_HAS_CPU_R5500 2014 bool 2015 2016config SYS_HAS_CPU_NEVADA 2017 bool 2018 2019config SYS_HAS_CPU_R10000 2020 bool 2021 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2022 2023config SYS_HAS_CPU_RM7000 2024 bool 2025 2026config SYS_HAS_CPU_SB1 2027 bool 2028 2029config SYS_HAS_CPU_CAVIUM_OCTEON 2030 bool 2031 2032config SYS_HAS_CPU_BMIPS 2033 bool 2034 2035config SYS_HAS_CPU_BMIPS32_3300 2036 bool 2037 select SYS_HAS_CPU_BMIPS 2038 2039config SYS_HAS_CPU_BMIPS4350 2040 bool 2041 select SYS_HAS_CPU_BMIPS 2042 2043config SYS_HAS_CPU_BMIPS4380 2044 bool 2045 select SYS_HAS_CPU_BMIPS 2046 2047config SYS_HAS_CPU_BMIPS5000 2048 bool 2049 select SYS_HAS_CPU_BMIPS 2050 select ARCH_HAS_SYNC_DMA_FOR_CPU 2051 2052config SYS_HAS_CPU_XLR 2053 bool 2054 2055config SYS_HAS_CPU_XLP 2056 bool 2057 2058# 2059# CPU may reorder R->R, R->W, W->R, W->W 2060# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2061# 2062config WEAK_ORDERING 2063 bool 2064 2065# 2066# CPU may reorder reads and writes beyond LL/SC 2067# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2068# 2069config WEAK_REORDERING_BEYOND_LLSC 2070 bool 2071endmenu 2072 2073# 2074# These two indicate any level of the MIPS32 and MIPS64 architecture 2075# 2076config CPU_MIPS32 2077 bool 2078 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2079 CPU_MIPS32_R6 || CPU_P5600 2080 2081config CPU_MIPS64 2082 bool 2083 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2084 CPU_MIPS64_R6 2085 2086# 2087# These indicate the revision of the architecture 2088# 2089config CPU_MIPSR1 2090 bool 2091 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2092 2093config CPU_MIPSR2 2094 bool 2095 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2096 select CPU_HAS_RIXI 2097 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2098 select MIPS_SPRAM 2099 2100config CPU_MIPSR5 2101 bool 2102 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2103 select CPU_HAS_RIXI 2104 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2105 select MIPS_SPRAM 2106 2107config CPU_MIPSR6 2108 bool 2109 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2110 select CPU_HAS_RIXI 2111 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2112 select HAVE_ARCH_BITREVERSE 2113 select MIPS_ASID_BITS_VARIABLE 2114 select MIPS_CRC_SUPPORT 2115 select MIPS_SPRAM 2116 2117config TARGET_ISA_REV 2118 int 2119 default 1 if CPU_MIPSR1 2120 default 2 if CPU_MIPSR2 2121 default 5 if CPU_MIPSR5 2122 default 6 if CPU_MIPSR6 2123 default 0 2124 help 2125 Reflects the ISA revision being targeted by the kernel build. This 2126 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2127 2128config EVA 2129 bool 2130 2131config XPA 2132 bool 2133 2134config SYS_SUPPORTS_32BIT_KERNEL 2135 bool 2136config SYS_SUPPORTS_64BIT_KERNEL 2137 bool 2138config CPU_SUPPORTS_32BIT_KERNEL 2139 bool 2140config CPU_SUPPORTS_64BIT_KERNEL 2141 bool 2142config CPU_SUPPORTS_CPUFREQ 2143 bool 2144config CPU_SUPPORTS_ADDRWINCFG 2145 bool 2146config CPU_SUPPORTS_HUGEPAGES 2147 bool 2148 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2149config MIPS_PGD_C0_CONTEXT 2150 bool 2151 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2152 2153# 2154# Set to y for ptrace access to watch registers. 2155# 2156config HARDWARE_WATCHPOINTS 2157 bool 2158 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2159 2160menu "Kernel type" 2161 2162choice 2163 prompt "Kernel code model" 2164 help 2165 You should only select this option if you have a workload that 2166 actually benefits from 64-bit processing or if your machine has 2167 large memory. You will only be presented a single option in this 2168 menu if your system does not support both 32-bit and 64-bit kernels. 2169 2170config 32BIT 2171 bool "32-bit kernel" 2172 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2173 select TRAD_SIGNALS 2174 help 2175 Select this option if you want to build a 32-bit kernel. 2176 2177config 64BIT 2178 bool "64-bit kernel" 2179 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2180 help 2181 Select this option if you want to build a 64-bit kernel. 2182 2183endchoice 2184 2185config KVM_GUEST 2186 bool "KVM Guest Kernel" 2187 depends on CPU_MIPS32_R2 2188 depends on BROKEN_ON_SMP 2189 help 2190 Select this option if building a guest kernel for KVM (Trap & Emulate) 2191 mode. 2192 2193config KVM_GUEST_TIMER_FREQ 2194 int "Count/Compare Timer Frequency (MHz)" 2195 depends on KVM_GUEST 2196 default 100 2197 help 2198 Set this to non-zero if building a guest kernel for KVM to skip RTC 2199 emulation when determining guest CPU Frequency. Instead, the guest's 2200 timer frequency is specified directly. 2201 2202config MIPS_VA_BITS_48 2203 bool "48 bits virtual memory" 2204 depends on 64BIT 2205 help 2206 Support a maximum at least 48 bits of application virtual 2207 memory. Default is 40 bits or less, depending on the CPU. 2208 For page sizes 16k and above, this option results in a small 2209 memory overhead for page tables. For 4k page size, a fourth 2210 level of page tables is added which imposes both a memory 2211 overhead as well as slower TLB fault handling. 2212 2213 If unsure, say N. 2214 2215choice 2216 prompt "Kernel page size" 2217 default PAGE_SIZE_4KB 2218 2219config PAGE_SIZE_4KB 2220 bool "4kB" 2221 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2222 help 2223 This option select the standard 4kB Linux page size. On some 2224 R3000-family processors this is the only available page size. Using 2225 4kB page size will minimize memory consumption and is therefore 2226 recommended for low memory systems. 2227 2228config PAGE_SIZE_8KB 2229 bool "8kB" 2230 depends on CPU_CAVIUM_OCTEON 2231 depends on !MIPS_VA_BITS_48 2232 help 2233 Using 8kB page size will result in higher performance kernel at 2234 the price of higher memory consumption. This option is available 2235 only on cnMIPS processors. Note that you will need a suitable Linux 2236 distribution to support this. 2237 2238config PAGE_SIZE_16KB 2239 bool "16kB" 2240 depends on !CPU_R3000 && !CPU_TX39XX 2241 help 2242 Using 16kB page size will result in higher performance kernel at 2243 the price of higher memory consumption. This option is available on 2244 all non-R3000 family processors. Note that you will need a suitable 2245 Linux distribution to support this. 2246 2247config PAGE_SIZE_32KB 2248 bool "32kB" 2249 depends on CPU_CAVIUM_OCTEON 2250 depends on !MIPS_VA_BITS_48 2251 help 2252 Using 32kB page size will result in higher performance kernel at 2253 the price of higher memory consumption. This option is available 2254 only on cnMIPS cores. Note that you will need a suitable Linux 2255 distribution to support this. 2256 2257config PAGE_SIZE_64KB 2258 bool "64kB" 2259 depends on !CPU_R3000 && !CPU_TX39XX 2260 help 2261 Using 64kB page size will result in higher performance kernel at 2262 the price of higher memory consumption. This option is available on 2263 all non-R3000 family processor. Not that at the time of this 2264 writing this option is still high experimental. 2265 2266endchoice 2267 2268config FORCE_MAX_ZONEORDER 2269 int "Maximum zone order" 2270 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2271 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2272 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2273 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2274 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2275 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2276 range 11 64 2277 default "11" 2278 help 2279 The kernel memory allocator divides physically contiguous memory 2280 blocks into "zones", where each zone is a power of two number of 2281 pages. This option selects the largest power of two that the kernel 2282 keeps in the memory allocator. If you need to allocate very large 2283 blocks of physically contiguous memory, then you may need to 2284 increase this value. 2285 2286 This config option is actually maximum order plus one. For example, 2287 a value of 11 means that the largest free memory block is 2^10 pages. 2288 2289 The page size is not necessarily 4KB. Keep this in mind 2290 when choosing a value for this option. 2291 2292config BOARD_SCACHE 2293 bool 2294 2295config IP22_CPU_SCACHE 2296 bool 2297 select BOARD_SCACHE 2298 2299# 2300# Support for a MIPS32 / MIPS64 style S-caches 2301# 2302config MIPS_CPU_SCACHE 2303 bool 2304 select BOARD_SCACHE 2305 2306config R5000_CPU_SCACHE 2307 bool 2308 select BOARD_SCACHE 2309 2310config RM7000_CPU_SCACHE 2311 bool 2312 select BOARD_SCACHE 2313 2314config SIBYTE_DMA_PAGEOPS 2315 bool "Use DMA to clear/copy pages" 2316 depends on CPU_SB1 2317 help 2318 Instead of using the CPU to zero and copy pages, use a Data Mover 2319 channel. These DMA channels are otherwise unused by the standard 2320 SiByte Linux port. Seems to give a small performance benefit. 2321 2322config CPU_HAS_PREFETCH 2323 bool 2324 2325config CPU_GENERIC_DUMP_TLB 2326 bool 2327 default y if !(CPU_R3000 || CPU_TX39XX) 2328 2329config MIPS_FP_SUPPORT 2330 bool "Floating Point support" if EXPERT 2331 default y 2332 help 2333 Select y to include support for floating point in the kernel 2334 including initialization of FPU hardware, FP context save & restore 2335 and emulation of an FPU where necessary. Without this support any 2336 userland program attempting to use floating point instructions will 2337 receive a SIGILL. 2338 2339 If you know that your userland will not attempt to use floating point 2340 instructions then you can say n here to shrink the kernel a little. 2341 2342 If unsure, say y. 2343 2344config CPU_R2300_FPU 2345 bool 2346 depends on MIPS_FP_SUPPORT 2347 default y if CPU_R3000 || CPU_TX39XX 2348 2349config CPU_R3K_TLB 2350 bool 2351 2352config CPU_R4K_FPU 2353 bool 2354 depends on MIPS_FP_SUPPORT 2355 default y if !CPU_R2300_FPU 2356 2357config CPU_R4K_CACHE_TLB 2358 bool 2359 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2360 2361config MIPS_MT_SMP 2362 bool "MIPS MT SMP support (1 TC on each available VPE)" 2363 default y 2364 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2365 select CPU_MIPSR2_IRQ_VI 2366 select CPU_MIPSR2_IRQ_EI 2367 select SYNC_R4K 2368 select MIPS_MT 2369 select SMP 2370 select SMP_UP 2371 select SYS_SUPPORTS_SMP 2372 select SYS_SUPPORTS_SCHED_SMT 2373 select MIPS_PERF_SHARED_TC_COUNTERS 2374 help 2375 This is a kernel model which is known as SMVP. This is supported 2376 on cores with the MT ASE and uses the available VPEs to implement 2377 virtual processors which supports SMP. This is equivalent to the 2378 Intel Hyperthreading feature. For further information go to 2379 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2380 2381config MIPS_MT 2382 bool 2383 2384config SCHED_SMT 2385 bool "SMT (multithreading) scheduler support" 2386 depends on SYS_SUPPORTS_SCHED_SMT 2387 default n 2388 help 2389 SMT scheduler support improves the CPU scheduler's decision making 2390 when dealing with MIPS MT enabled cores at a cost of slightly 2391 increased overhead in some places. If unsure say N here. 2392 2393config SYS_SUPPORTS_SCHED_SMT 2394 bool 2395 2396config SYS_SUPPORTS_MULTITHREADING 2397 bool 2398 2399config MIPS_MT_FPAFF 2400 bool "Dynamic FPU affinity for FP-intensive threads" 2401 default y 2402 depends on MIPS_MT_SMP 2403 2404config MIPSR2_TO_R6_EMULATOR 2405 bool "MIPS R2-to-R6 emulator" 2406 depends on CPU_MIPSR6 2407 depends on MIPS_FP_SUPPORT 2408 default y 2409 help 2410 Choose this option if you want to run non-R6 MIPS userland code. 2411 Even if you say 'Y' here, the emulator will still be disabled by 2412 default. You can enable it using the 'mipsr2emu' kernel option. 2413 The only reason this is a build-time option is to save ~14K from the 2414 final kernel image. 2415 2416config SYS_SUPPORTS_VPE_LOADER 2417 bool 2418 depends on SYS_SUPPORTS_MULTITHREADING 2419 help 2420 Indicates that the platform supports the VPE loader, and provides 2421 physical_memsize. 2422 2423config MIPS_VPE_LOADER 2424 bool "VPE loader support." 2425 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2426 select CPU_MIPSR2_IRQ_VI 2427 select CPU_MIPSR2_IRQ_EI 2428 select MIPS_MT 2429 help 2430 Includes a loader for loading an elf relocatable object 2431 onto another VPE and running it. 2432 2433config MIPS_VPE_LOADER_CMP 2434 bool 2435 default "y" 2436 depends on MIPS_VPE_LOADER && MIPS_CMP 2437 2438config MIPS_VPE_LOADER_MT 2439 bool 2440 default "y" 2441 depends on MIPS_VPE_LOADER && !MIPS_CMP 2442 2443config MIPS_VPE_LOADER_TOM 2444 bool "Load VPE program into memory hidden from linux" 2445 depends on MIPS_VPE_LOADER 2446 default y 2447 help 2448 The loader can use memory that is present but has been hidden from 2449 Linux using the kernel command line option "mem=xxMB". It's up to 2450 you to ensure the amount you put in the option and the space your 2451 program requires is less or equal to the amount physically present. 2452 2453config MIPS_VPE_APSP_API 2454 bool "Enable support for AP/SP API (RTLX)" 2455 depends on MIPS_VPE_LOADER 2456 2457config MIPS_VPE_APSP_API_CMP 2458 bool 2459 default "y" 2460 depends on MIPS_VPE_APSP_API && MIPS_CMP 2461 2462config MIPS_VPE_APSP_API_MT 2463 bool 2464 default "y" 2465 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2466 2467config MIPS_CMP 2468 bool "MIPS CMP framework support (DEPRECATED)" 2469 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2470 select SMP 2471 select SYNC_R4K 2472 select SYS_SUPPORTS_SMP 2473 select WEAK_ORDERING 2474 default n 2475 help 2476 Select this if you are using a bootloader which implements the "CMP 2477 framework" protocol (ie. YAMON) and want your kernel to make use of 2478 its ability to start secondary CPUs. 2479 2480 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2481 instead of this. 2482 2483config MIPS_CPS 2484 bool "MIPS Coherent Processing System support" 2485 depends on SYS_SUPPORTS_MIPS_CPS 2486 select MIPS_CM 2487 select MIPS_CPS_PM if HOTPLUG_CPU 2488 select SMP 2489 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2490 select SYS_SUPPORTS_HOTPLUG_CPU 2491 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2492 select SYS_SUPPORTS_SMP 2493 select WEAK_ORDERING 2494 help 2495 Select this if you wish to run an SMP kernel across multiple cores 2496 within a MIPS Coherent Processing System. When this option is 2497 enabled the kernel will probe for other cores and boot them with 2498 no external assistance. It is safe to enable this when hardware 2499 support is unavailable. 2500 2501config MIPS_CPS_PM 2502 depends on MIPS_CPS 2503 bool 2504 2505config MIPS_CM 2506 bool 2507 select MIPS_CPC 2508 2509config MIPS_CPC 2510 bool 2511 2512config SB1_PASS_2_WORKAROUNDS 2513 bool 2514 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2515 default y 2516 2517config SB1_PASS_2_1_WORKAROUNDS 2518 bool 2519 depends on CPU_SB1 && CPU_SB1_PASS_2 2520 default y 2521 2522choice 2523 prompt "SmartMIPS or microMIPS ASE support" 2524 2525config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2526 bool "None" 2527 help 2528 Select this if you want neither microMIPS nor SmartMIPS support 2529 2530config CPU_HAS_SMARTMIPS 2531 depends on SYS_SUPPORTS_SMARTMIPS 2532 bool "SmartMIPS" 2533 help 2534 SmartMIPS is a extension of the MIPS32 architecture aimed at 2535 increased security at both hardware and software level for 2536 smartcards. Enabling this option will allow proper use of the 2537 SmartMIPS instructions by Linux applications. However a kernel with 2538 this option will not work on a MIPS core without SmartMIPS core. If 2539 you don't know you probably don't have SmartMIPS and should say N 2540 here. 2541 2542config CPU_MICROMIPS 2543 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2544 bool "microMIPS" 2545 help 2546 When this option is enabled the kernel will be built using the 2547 microMIPS ISA 2548 2549endchoice 2550 2551config CPU_HAS_MSA 2552 bool "Support for the MIPS SIMD Architecture" 2553 depends on CPU_SUPPORTS_MSA 2554 depends on MIPS_FP_SUPPORT 2555 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2556 help 2557 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2558 and a set of SIMD instructions to operate on them. When this option 2559 is enabled the kernel will support allocating & switching MSA 2560 vector register contexts. If you know that your kernel will only be 2561 running on CPUs which do not support MSA or that your userland will 2562 not be making use of it then you may wish to say N here to reduce 2563 the size & complexity of your kernel. 2564 2565 If unsure, say Y. 2566 2567config CPU_HAS_WB 2568 bool 2569 2570config XKS01 2571 bool 2572 2573config CPU_HAS_DIEI 2574 depends on !CPU_DIEI_BROKEN 2575 bool 2576 2577config CPU_DIEI_BROKEN 2578 bool 2579 2580config CPU_HAS_RIXI 2581 bool 2582 2583config CPU_NO_LOAD_STORE_LR 2584 bool 2585 help 2586 CPU lacks support for unaligned load and store instructions: 2587 LWL, LWR, SWL, SWR (Load/store word left/right). 2588 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2589 systems). 2590 2591# 2592# Vectored interrupt mode is an R2 feature 2593# 2594config CPU_MIPSR2_IRQ_VI 2595 bool 2596 2597# 2598# Extended interrupt mode is an R2 feature 2599# 2600config CPU_MIPSR2_IRQ_EI 2601 bool 2602 2603config CPU_HAS_SYNC 2604 bool 2605 depends on !CPU_R3000 2606 default y 2607 2608# 2609# CPU non-features 2610# 2611config CPU_DADDI_WORKAROUNDS 2612 bool 2613 2614config CPU_R4000_WORKAROUNDS 2615 bool 2616 select CPU_R4400_WORKAROUNDS 2617 2618config CPU_R4400_WORKAROUNDS 2619 bool 2620 2621config CPU_R4X00_BUGS64 2622 bool 2623 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2624 2625config MIPS_ASID_SHIFT 2626 int 2627 default 6 if CPU_R3000 || CPU_TX39XX 2628 default 0 2629 2630config MIPS_ASID_BITS 2631 int 2632 default 0 if MIPS_ASID_BITS_VARIABLE 2633 default 6 if CPU_R3000 || CPU_TX39XX 2634 default 8 2635 2636config MIPS_ASID_BITS_VARIABLE 2637 bool 2638 2639config MIPS_CRC_SUPPORT 2640 bool 2641 2642# 2643# - Highmem only makes sense for the 32-bit kernel. 2644# - The current highmem code will only work properly on physically indexed 2645# caches such as R3000, SB1, R7000 or those that look like they're virtually 2646# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2647# moment we protect the user and offer the highmem option only on machines 2648# where it's known to be safe. This will not offer highmem on a few systems 2649# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2650# indexed CPUs but we're playing safe. 2651# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2652# know they might have memory configurations that could make use of highmem 2653# support. 2654# 2655config HIGHMEM 2656 bool "High Memory Support" 2657 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2658 2659config CPU_SUPPORTS_HIGHMEM 2660 bool 2661 2662config SYS_SUPPORTS_HIGHMEM 2663 bool 2664 2665config SYS_SUPPORTS_SMARTMIPS 2666 bool 2667 2668config SYS_SUPPORTS_MICROMIPS 2669 bool 2670 2671config SYS_SUPPORTS_MIPS16 2672 bool 2673 help 2674 This option must be set if a kernel might be executed on a MIPS16- 2675 enabled CPU even if MIPS16 is not actually being used. In other 2676 words, it makes the kernel MIPS16-tolerant. 2677 2678config CPU_SUPPORTS_MSA 2679 bool 2680 2681config ARCH_FLATMEM_ENABLE 2682 def_bool y 2683 depends on !NUMA && !CPU_LOONGSON2EF 2684 2685config ARCH_SPARSEMEM_ENABLE 2686 bool 2687 select SPARSEMEM_STATIC if !SGI_IP27 2688 2689config NUMA 2690 bool "NUMA Support" 2691 depends on SYS_SUPPORTS_NUMA 2692 help 2693 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2694 Access). This option improves performance on systems with more 2695 than two nodes; on two node systems it is generally better to 2696 leave it disabled; on single node systems leave this option 2697 disabled. 2698 2699config SYS_SUPPORTS_NUMA 2700 bool 2701 2702config HAVE_SETUP_PER_CPU_AREA 2703 def_bool y 2704 depends on NUMA 2705 2706config NEED_PER_CPU_EMBED_FIRST_CHUNK 2707 def_bool y 2708 depends on NUMA 2709 2710config RELOCATABLE 2711 bool "Relocatable kernel" 2712 depends on SYS_SUPPORTS_RELOCATABLE 2713 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2714 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2715 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2716 CPU_P5600 || CAVIUM_OCTEON_SOC 2717 help 2718 This builds a kernel image that retains relocation information 2719 so it can be loaded someplace besides the default 1MB. 2720 The relocations make the kernel binary about 15% larger, 2721 but are discarded at runtime 2722 2723config RELOCATION_TABLE_SIZE 2724 hex "Relocation table size" 2725 depends on RELOCATABLE 2726 range 0x0 0x01000000 2727 default "0x00100000" 2728 help 2729 A table of relocation data will be appended to the kernel binary 2730 and parsed at boot to fix up the relocated kernel. 2731 2732 This option allows the amount of space reserved for the table to be 2733 adjusted, although the default of 1Mb should be ok in most cases. 2734 2735 The build will fail and a valid size suggested if this is too small. 2736 2737 If unsure, leave at the default value. 2738 2739config RANDOMIZE_BASE 2740 bool "Randomize the address of the kernel image" 2741 depends on RELOCATABLE 2742 help 2743 Randomizes the physical and virtual address at which the 2744 kernel image is loaded, as a security feature that 2745 deters exploit attempts relying on knowledge of the location 2746 of kernel internals. 2747 2748 Entropy is generated using any coprocessor 0 registers available. 2749 2750 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2751 2752 If unsure, say N. 2753 2754config RANDOMIZE_BASE_MAX_OFFSET 2755 hex "Maximum kASLR offset" if EXPERT 2756 depends on RANDOMIZE_BASE 2757 range 0x0 0x40000000 if EVA || 64BIT 2758 range 0x0 0x08000000 2759 default "0x01000000" 2760 help 2761 When kASLR is active, this provides the maximum offset that will 2762 be applied to the kernel image. It should be set according to the 2763 amount of physical RAM available in the target system minus 2764 PHYSICAL_START and must be a power of 2. 2765 2766 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2767 EVA or 64-bit. The default is 16Mb. 2768 2769config NODES_SHIFT 2770 int 2771 default "6" 2772 depends on NEED_MULTIPLE_NODES 2773 2774config HW_PERF_EVENTS 2775 bool "Enable hardware performance counter support for perf events" 2776 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2777 default y 2778 help 2779 Enable hardware performance counter support for perf events. If 2780 disabled, perf events will use software events only. 2781 2782config DMI 2783 bool "Enable DMI scanning" 2784 depends on MACH_LOONGSON64 2785 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2786 default y 2787 help 2788 Enabled scanning of DMI to identify machine quirks. Say Y 2789 here unless you have verified that your setup is not 2790 affected by entries in the DMI blacklist. Required by PNP 2791 BIOS code. 2792 2793config SMP 2794 bool "Multi-Processing support" 2795 depends on SYS_SUPPORTS_SMP 2796 help 2797 This enables support for systems with more than one CPU. If you have 2798 a system with only one CPU, say N. If you have a system with more 2799 than one CPU, say Y. 2800 2801 If you say N here, the kernel will run on uni- and multiprocessor 2802 machines, but will use only one CPU of a multiprocessor machine. If 2803 you say Y here, the kernel will run on many, but not all, 2804 uniprocessor machines. On a uniprocessor machine, the kernel 2805 will run faster if you say N here. 2806 2807 People using multiprocessor machines who say Y here should also say 2808 Y to "Enhanced Real Time Clock Support", below. 2809 2810 See also the SMP-HOWTO available at 2811 <https://www.tldp.org/docs.html#howto>. 2812 2813 If you don't know what to do here, say N. 2814 2815config HOTPLUG_CPU 2816 bool "Support for hot-pluggable CPUs" 2817 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2818 help 2819 Say Y here to allow turning CPUs off and on. CPUs can be 2820 controlled through /sys/devices/system/cpu. 2821 (Note: power management support will enable this option 2822 automatically on SMP systems. ) 2823 Say N if you want to disable CPU hotplug. 2824 2825config SMP_UP 2826 bool 2827 2828config SYS_SUPPORTS_MIPS_CMP 2829 bool 2830 2831config SYS_SUPPORTS_MIPS_CPS 2832 bool 2833 2834config SYS_SUPPORTS_SMP 2835 bool 2836 2837config NR_CPUS_DEFAULT_4 2838 bool 2839 2840config NR_CPUS_DEFAULT_8 2841 bool 2842 2843config NR_CPUS_DEFAULT_16 2844 bool 2845 2846config NR_CPUS_DEFAULT_32 2847 bool 2848 2849config NR_CPUS_DEFAULT_64 2850 bool 2851 2852config NR_CPUS 2853 int "Maximum number of CPUs (2-256)" 2854 range 2 256 2855 depends on SMP 2856 default "4" if NR_CPUS_DEFAULT_4 2857 default "8" if NR_CPUS_DEFAULT_8 2858 default "16" if NR_CPUS_DEFAULT_16 2859 default "32" if NR_CPUS_DEFAULT_32 2860 default "64" if NR_CPUS_DEFAULT_64 2861 help 2862 This allows you to specify the maximum number of CPUs which this 2863 kernel will support. The maximum supported value is 32 for 32-bit 2864 kernel and 64 for 64-bit kernels; the minimum value which makes 2865 sense is 1 for Qemu (useful only for kernel debugging purposes) 2866 and 2 for all others. 2867 2868 This is purely to save memory - each supported CPU adds 2869 approximately eight kilobytes to the kernel image. For best 2870 performance should round up your number of processors to the next 2871 power of two. 2872 2873config MIPS_PERF_SHARED_TC_COUNTERS 2874 bool 2875 2876config MIPS_NR_CPU_NR_MAP_1024 2877 bool 2878 2879config MIPS_NR_CPU_NR_MAP 2880 int 2881 depends on SMP 2882 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2883 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2884 2885# 2886# Timer Interrupt Frequency Configuration 2887# 2888 2889choice 2890 prompt "Timer frequency" 2891 default HZ_250 2892 help 2893 Allows the configuration of the timer frequency. 2894 2895 config HZ_24 2896 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2897 2898 config HZ_48 2899 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2900 2901 config HZ_100 2902 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2903 2904 config HZ_128 2905 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2906 2907 config HZ_250 2908 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2909 2910 config HZ_256 2911 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2912 2913 config HZ_1000 2914 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2915 2916 config HZ_1024 2917 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2918 2919endchoice 2920 2921config SYS_SUPPORTS_24HZ 2922 bool 2923 2924config SYS_SUPPORTS_48HZ 2925 bool 2926 2927config SYS_SUPPORTS_100HZ 2928 bool 2929 2930config SYS_SUPPORTS_128HZ 2931 bool 2932 2933config SYS_SUPPORTS_250HZ 2934 bool 2935 2936config SYS_SUPPORTS_256HZ 2937 bool 2938 2939config SYS_SUPPORTS_1000HZ 2940 bool 2941 2942config SYS_SUPPORTS_1024HZ 2943 bool 2944 2945config SYS_SUPPORTS_ARBIT_HZ 2946 bool 2947 default y if !SYS_SUPPORTS_24HZ && \ 2948 !SYS_SUPPORTS_48HZ && \ 2949 !SYS_SUPPORTS_100HZ && \ 2950 !SYS_SUPPORTS_128HZ && \ 2951 !SYS_SUPPORTS_250HZ && \ 2952 !SYS_SUPPORTS_256HZ && \ 2953 !SYS_SUPPORTS_1000HZ && \ 2954 !SYS_SUPPORTS_1024HZ 2955 2956config HZ 2957 int 2958 default 24 if HZ_24 2959 default 48 if HZ_48 2960 default 100 if HZ_100 2961 default 128 if HZ_128 2962 default 250 if HZ_250 2963 default 256 if HZ_256 2964 default 1000 if HZ_1000 2965 default 1024 if HZ_1024 2966 2967config SCHED_HRTICK 2968 def_bool HIGH_RES_TIMERS 2969 2970config KEXEC 2971 bool "Kexec system call" 2972 select KEXEC_CORE 2973 help 2974 kexec is a system call that implements the ability to shutdown your 2975 current kernel, and to start another kernel. It is like a reboot 2976 but it is independent of the system firmware. And like a reboot 2977 you can start any kernel with it, not just Linux. 2978 2979 The name comes from the similarity to the exec system call. 2980 2981 It is an ongoing process to be certain the hardware in a machine 2982 is properly shutdown, so do not be surprised if this code does not 2983 initially work for you. As of this writing the exact hardware 2984 interface is strongly in flux, so no good recommendation can be 2985 made. 2986 2987config CRASH_DUMP 2988 bool "Kernel crash dumps" 2989 help 2990 Generate crash dump after being started by kexec. 2991 This should be normally only set in special crash dump kernels 2992 which are loaded in the main kernel with kexec-tools into 2993 a specially reserved region and then later executed after 2994 a crash by kdump/kexec. The crash dump kernel must be compiled 2995 to a memory address not used by the main kernel or firmware using 2996 PHYSICAL_START. 2997 2998config PHYSICAL_START 2999 hex "Physical address where the kernel is loaded" 3000 default "0xffffffff84000000" 3001 depends on CRASH_DUMP 3002 help 3003 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3004 If you plan to use kernel for capturing the crash dump change 3005 this value to start of the reserved region (the "X" value as 3006 specified in the "crashkernel=YM@XM" command line boot parameter 3007 passed to the panic-ed kernel). 3008 3009config SECCOMP 3010 bool "Enable seccomp to safely compute untrusted bytecode" 3011 depends on PROC_FS 3012 default y 3013 help 3014 This kernel feature is useful for number crunching applications 3015 that may need to compute untrusted bytecode during their 3016 execution. By using pipes or other transports made available to 3017 the process as file descriptors supporting the read/write 3018 syscalls, it's possible to isolate those applications in 3019 their own address space using seccomp. Once seccomp is 3020 enabled via /proc/<pid>/seccomp, it cannot be disabled 3021 and the task is only allowed to execute a few safe syscalls 3022 defined by each seccomp mode. 3023 3024 If unsure, say Y. Only embedded should say N here. 3025 3026config MIPS_O32_FP64_SUPPORT 3027 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3028 depends on 32BIT || MIPS32_O32 3029 help 3030 When this is enabled, the kernel will support use of 64-bit floating 3031 point registers with binaries using the O32 ABI along with the 3032 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3033 32-bit MIPS systems this support is at the cost of increasing the 3034 size and complexity of the compiled FPU emulator. Thus if you are 3035 running a MIPS32 system and know that none of your userland binaries 3036 will require 64-bit floating point, you may wish to reduce the size 3037 of your kernel & potentially improve FP emulation performance by 3038 saying N here. 3039 3040 Although binutils currently supports use of this flag the details 3041 concerning its effect upon the O32 ABI in userland are still being 3042 worked on. In order to avoid userland becoming dependant upon current 3043 behaviour before the details have been finalised, this option should 3044 be considered experimental and only enabled by those working upon 3045 said details. 3046 3047 If unsure, say N. 3048 3049config USE_OF 3050 bool 3051 select OF 3052 select OF_EARLY_FLATTREE 3053 select IRQ_DOMAIN 3054 3055config UHI_BOOT 3056 bool 3057 3058config BUILTIN_DTB 3059 bool 3060 3061choice 3062 prompt "Kernel appended dtb support" if USE_OF 3063 default MIPS_NO_APPENDED_DTB 3064 3065 config MIPS_NO_APPENDED_DTB 3066 bool "None" 3067 help 3068 Do not enable appended dtb support. 3069 3070 config MIPS_ELF_APPENDED_DTB 3071 bool "vmlinux" 3072 help 3073 With this option, the boot code will look for a device tree binary 3074 DTB) included in the vmlinux ELF section .appended_dtb. By default 3075 it is empty and the DTB can be appended using binutils command 3076 objcopy: 3077 3078 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3079 3080 This is meant as a backward compatiblity convenience for those 3081 systems with a bootloader that can't be upgraded to accommodate 3082 the documented boot protocol using a device tree. 3083 3084 config MIPS_RAW_APPENDED_DTB 3085 bool "vmlinux.bin or vmlinuz.bin" 3086 help 3087 With this option, the boot code will look for a device tree binary 3088 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3089 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3090 3091 This is meant as a backward compatibility convenience for those 3092 systems with a bootloader that can't be upgraded to accommodate 3093 the documented boot protocol using a device tree. 3094 3095 Beware that there is very little in terms of protection against 3096 this option being confused by leftover garbage in memory that might 3097 look like a DTB header after a reboot if no actual DTB is appended 3098 to vmlinux.bin. Do not leave this option active in a production kernel 3099 if you don't intend to always append a DTB. 3100endchoice 3101 3102choice 3103 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3104 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3105 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3106 !CAVIUM_OCTEON_SOC 3107 default MIPS_CMDLINE_FROM_BOOTLOADER 3108 3109 config MIPS_CMDLINE_FROM_DTB 3110 depends on USE_OF 3111 bool "Dtb kernel arguments if available" 3112 3113 config MIPS_CMDLINE_DTB_EXTEND 3114 depends on USE_OF 3115 bool "Extend dtb kernel arguments with bootloader arguments" 3116 3117 config MIPS_CMDLINE_FROM_BOOTLOADER 3118 bool "Bootloader kernel arguments if available" 3119 3120 config MIPS_CMDLINE_BUILTIN_EXTEND 3121 depends on CMDLINE_BOOL 3122 bool "Extend builtin kernel arguments with bootloader arguments" 3123endchoice 3124 3125endmenu 3126 3127config LOCKDEP_SUPPORT 3128 bool 3129 default y 3130 3131config STACKTRACE_SUPPORT 3132 bool 3133 default y 3134 3135config PGTABLE_LEVELS 3136 int 3137 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3138 default 3 if 64BIT && !PAGE_SIZE_64KB 3139 default 2 3140 3141config MIPS_AUTO_PFN_OFFSET 3142 bool 3143 3144menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3145 3146config PCI_DRIVERS_GENERIC 3147 select PCI_DOMAINS_GENERIC if PCI 3148 bool 3149 3150config PCI_DRIVERS_LEGACY 3151 def_bool !PCI_DRIVERS_GENERIC 3152 select NO_GENERIC_PCI_IOPORT_MAP 3153 select PCI_DOMAINS if PCI 3154 3155# 3156# ISA support is now enabled via select. Too many systems still have the one 3157# or other ISA chip on the board that users don't know about so don't expect 3158# users to choose the right thing ... 3159# 3160config ISA 3161 bool 3162 3163config TC 3164 bool "TURBOchannel support" 3165 depends on MACH_DECSTATION 3166 help 3167 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3168 processors. TURBOchannel programming specifications are available 3169 at: 3170 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3171 and: 3172 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3173 Linux driver support status is documented at: 3174 <http://www.linux-mips.org/wiki/DECstation> 3175 3176config MMU 3177 bool 3178 default y 3179 3180config ARCH_MMAP_RND_BITS_MIN 3181 default 12 if 64BIT 3182 default 8 3183 3184config ARCH_MMAP_RND_BITS_MAX 3185 default 18 if 64BIT 3186 default 15 3187 3188config ARCH_MMAP_RND_COMPAT_BITS_MIN 3189 default 8 3190 3191config ARCH_MMAP_RND_COMPAT_BITS_MAX 3192 default 15 3193 3194config I8253 3195 bool 3196 select CLKSRC_I8253 3197 select CLKEVT_I8253 3198 select MIPS_EXTERNAL_TIMER 3199 3200config ZONE_DMA 3201 bool 3202 3203config ZONE_DMA32 3204 bool 3205 3206endmenu 3207 3208config TRAD_SIGNALS 3209 bool 3210 3211config MIPS32_COMPAT 3212 bool 3213 3214config COMPAT 3215 bool 3216 3217config SYSVIPC_COMPAT 3218 bool 3219 3220config MIPS32_O32 3221 bool "Kernel support for o32 binaries" 3222 depends on 64BIT 3223 select ARCH_WANT_OLD_COMPAT_IPC 3224 select COMPAT 3225 select MIPS32_COMPAT 3226 select SYSVIPC_COMPAT if SYSVIPC 3227 help 3228 Select this option if you want to run o32 binaries. These are pure 3229 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3230 existing binaries are in this format. 3231 3232 If unsure, say Y. 3233 3234config MIPS32_N32 3235 bool "Kernel support for n32 binaries" 3236 depends on 64BIT 3237 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3238 select COMPAT 3239 select MIPS32_COMPAT 3240 select SYSVIPC_COMPAT if SYSVIPC 3241 help 3242 Select this option if you want to run n32 binaries. These are 3243 64-bit binaries using 32-bit quantities for addressing and certain 3244 data that would normally be 64-bit. They are used in special 3245 cases. 3246 3247 If unsure, say N. 3248 3249config BINFMT_ELF32 3250 bool 3251 default y if MIPS32_O32 || MIPS32_N32 3252 select ELFCORE 3253 3254menu "Power management options" 3255 3256config ARCH_HIBERNATION_POSSIBLE 3257 def_bool y 3258 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3259 3260config ARCH_SUSPEND_POSSIBLE 3261 def_bool y 3262 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3263 3264source "kernel/power/Kconfig" 3265 3266endmenu 3267 3268config MIPS_EXTERNAL_TIMER 3269 bool 3270 3271menu "CPU Power Management" 3272 3273if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3274source "drivers/cpufreq/Kconfig" 3275endif 3276 3277source "drivers/cpuidle/Kconfig" 3278 3279endmenu 3280 3281source "drivers/firmware/Kconfig" 3282 3283source "arch/mips/kvm/Kconfig" 3284 3285source "arch/mips/vdso/Kconfig" 3286