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_COPY_THREAD_TLS 55 select HAVE_C_RECORDMCOUNT 56 select HAVE_DEBUG_KMEMLEAK 57 select HAVE_DEBUG_STACKOVERFLOW 58 select HAVE_DMA_CONTIGUOUS 59 select HAVE_DYNAMIC_FTRACE 60 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 61 select HAVE_EXIT_THREAD 62 select HAVE_FAST_GUP 63 select HAVE_FTRACE_MCOUNT_RECORD 64 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_TRACER 66 select HAVE_GCC_PLUGINS 67 select HAVE_GENERIC_VDSO 68 select HAVE_IDE 69 select HAVE_IOREMAP_PROT 70 select HAVE_IRQ_EXIT_ON_IRQ_STACK 71 select HAVE_IRQ_TIME_ACCOUNTING 72 select HAVE_KPROBES 73 select HAVE_KRETPROBES 74 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 75 select HAVE_MOD_ARCH_SPECIFIC 76 select HAVE_NMI 77 select HAVE_OPROFILE 78 select HAVE_PERF_EVENTS 79 select HAVE_REGS_AND_STACK_ACCESS_API 80 select HAVE_RSEQ 81 select HAVE_SPARSE_SYSCALL_NR 82 select HAVE_STACKPROTECTOR 83 select HAVE_SYSCALL_TRACEPOINTS 84 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 85 select IRQ_FORCED_THREADING 86 select ISA if EISA 87 select MODULES_USE_ELF_REL if MODULES 88 select MODULES_USE_ELF_RELA if MODULES && 64BIT 89 select PERF_USE_VMALLOC 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 FW_ARC 371 select FW_ARC32 372 select ARCH_MAY_HAVE_PC_FDC 373 select CEVT_R4K 374 select CSRC_R4K 375 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 376 select GENERIC_ISA_DMA 377 select HAVE_PCSPKR_PLATFORM 378 select IRQ_MIPS_CPU 379 select I8253 380 select I8259 381 select ISA 382 select SYS_HAS_CPU_R4X00 383 select SYS_SUPPORTS_32BIT_KERNEL 384 select SYS_SUPPORTS_64BIT_KERNEL 385 select SYS_SUPPORTS_100HZ 386 help 387 This a family of machines based on the MIPS R4030 chipset which was 388 used by several vendors to build RISC/os and Windows NT workstations. 389 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 390 Olivetti M700-10 workstations. 391 392config MACH_INGENIC 393 bool "Ingenic SoC based machines" 394 select SYS_SUPPORTS_32BIT_KERNEL 395 select SYS_SUPPORTS_LITTLE_ENDIAN 396 select SYS_SUPPORTS_ZBOOT_UART16550 397 select CPU_SUPPORTS_HUGEPAGES 398 select DMA_NONCOHERENT 399 select IRQ_MIPS_CPU 400 select PINCTRL 401 select GPIOLIB 402 select COMMON_CLK 403 select GENERIC_IRQ_CHIP 404 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 405 select USE_OF 406 407config LANTIQ 408 bool "Lantiq based platforms" 409 select DMA_NONCOHERENT 410 select IRQ_MIPS_CPU 411 select CEVT_R4K 412 select CSRC_R4K 413 select SYS_HAS_CPU_MIPS32_R1 414 select SYS_HAS_CPU_MIPS32_R2 415 select SYS_SUPPORTS_BIG_ENDIAN 416 select SYS_SUPPORTS_32BIT_KERNEL 417 select SYS_SUPPORTS_MIPS16 418 select SYS_SUPPORTS_MULTITHREADING 419 select SYS_SUPPORTS_VPE_LOADER 420 select SYS_HAS_EARLY_PRINTK 421 select GPIOLIB 422 select SWAP_IO_SPACE 423 select BOOT_RAW 424 select CLKDEV_LOOKUP 425 select HAVE_LEGACY_CLK 426 select USE_OF 427 select PINCTRL 428 select PINCTRL_LANTIQ 429 select ARCH_HAS_RESET_CONTROLLER 430 select RESET_CONTROLLER 431 432config MACH_LOONGSON32 433 bool "Loongson 32-bit family of machines" 434 select SYS_SUPPORTS_ZBOOT 435 help 436 This enables support for the Loongson-1 family of machines. 437 438 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 439 the Institute of Computing Technology (ICT), Chinese Academy of 440 Sciences (CAS). 441 442config MACH_LOONGSON2EF 443 bool "Loongson-2E/F family of machines" 444 select SYS_SUPPORTS_ZBOOT 445 help 446 This enables the support of early Loongson-2E/F family of machines. 447 448config MACH_LOONGSON64 449 bool "Loongson 64-bit family of machines" 450 select ARCH_SPARSEMEM_ENABLE 451 select ARCH_MIGHT_HAVE_PC_PARPORT 452 select ARCH_MIGHT_HAVE_PC_SERIO 453 select GENERIC_ISA_DMA_SUPPORT_BROKEN 454 select BOOT_ELF32 455 select BOARD_SCACHE 456 select CSRC_R4K 457 select CEVT_R4K 458 select CPU_HAS_WB 459 select FORCE_PCI 460 select ISA 461 select I8259 462 select IRQ_MIPS_CPU 463 select NO_EXCEPT_FILL 464 select NR_CPUS_DEFAULT_64 465 select USE_GENERIC_EARLY_PRINTK_8250 466 select PCI_DRIVERS_GENERIC 467 select SYS_HAS_CPU_LOONGSON64 468 select SYS_HAS_EARLY_PRINTK 469 select SYS_SUPPORTS_SMP 470 select SYS_SUPPORTS_HOTPLUG_CPU 471 select SYS_SUPPORTS_NUMA 472 select SYS_SUPPORTS_64BIT_KERNEL 473 select SYS_SUPPORTS_HIGHMEM 474 select SYS_SUPPORTS_LITTLE_ENDIAN 475 select SYS_SUPPORTS_ZBOOT 476 select ZONE_DMA32 477 select NUMA 478 select COMMON_CLK 479 select USE_OF 480 select BUILTIN_DTB 481 help 482 This enables the support of Loongson-2/3 family of machines. 483 484 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 485 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 486 and Loongson-2F which will be removed), developed by the Institute 487 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 488 489config MACH_PISTACHIO 490 bool "IMG Pistachio SoC based boards" 491 select BOOT_ELF32 492 select BOOT_RAW 493 select CEVT_R4K 494 select CLKSRC_MIPS_GIC 495 select COMMON_CLK 496 select CSRC_R4K 497 select DMA_NONCOHERENT 498 select GPIOLIB 499 select IRQ_MIPS_CPU 500 select MFD_SYSCON 501 select MIPS_CPU_SCACHE 502 select MIPS_GIC 503 select PINCTRL 504 select REGULATOR 505 select SYS_HAS_CPU_MIPS32_R2 506 select SYS_SUPPORTS_32BIT_KERNEL 507 select SYS_SUPPORTS_LITTLE_ENDIAN 508 select SYS_SUPPORTS_MIPS_CPS 509 select SYS_SUPPORTS_MULTITHREADING 510 select SYS_SUPPORTS_RELOCATABLE 511 select SYS_SUPPORTS_ZBOOT 512 select SYS_HAS_EARLY_PRINTK 513 select USE_GENERIC_EARLY_PRINTK_8250 514 select USE_OF 515 help 516 This enables support for the IMG Pistachio SoC platform. 517 518config MIPS_MALTA 519 bool "MIPS Malta board" 520 select ARCH_MAY_HAVE_PC_FDC 521 select ARCH_MIGHT_HAVE_PC_PARPORT 522 select ARCH_MIGHT_HAVE_PC_SERIO 523 select BOOT_ELF32 524 select BOOT_RAW 525 select BUILTIN_DTB 526 select CEVT_R4K 527 select CLKSRC_MIPS_GIC 528 select COMMON_CLK 529 select CSRC_R4K 530 select DMA_MAYBE_COHERENT 531 select GENERIC_ISA_DMA 532 select HAVE_PCSPKR_PLATFORM 533 select HAVE_PCI 534 select I8253 535 select I8259 536 select IRQ_MIPS_CPU 537 select MIPS_BONITO64 538 select MIPS_CPU_SCACHE 539 select MIPS_GIC 540 select MIPS_L1_CACHE_SHIFT_6 541 select MIPS_MSC 542 select PCI_GT64XXX_PCI0 543 select SMP_UP if SMP 544 select SWAP_IO_SPACE 545 select SYS_HAS_CPU_MIPS32_R1 546 select SYS_HAS_CPU_MIPS32_R2 547 select SYS_HAS_CPU_MIPS32_R3_5 548 select SYS_HAS_CPU_MIPS32_R5 549 select SYS_HAS_CPU_MIPS32_R6 550 select SYS_HAS_CPU_MIPS64_R1 551 select SYS_HAS_CPU_MIPS64_R2 552 select SYS_HAS_CPU_MIPS64_R6 553 select SYS_HAS_CPU_NEVADA 554 select SYS_HAS_CPU_RM7000 555 select SYS_SUPPORTS_32BIT_KERNEL 556 select SYS_SUPPORTS_64BIT_KERNEL 557 select SYS_SUPPORTS_BIG_ENDIAN 558 select SYS_SUPPORTS_HIGHMEM 559 select SYS_SUPPORTS_LITTLE_ENDIAN 560 select SYS_SUPPORTS_MICROMIPS 561 select SYS_SUPPORTS_MIPS16 562 select SYS_SUPPORTS_MIPS_CMP 563 select SYS_SUPPORTS_MIPS_CPS 564 select SYS_SUPPORTS_MULTITHREADING 565 select SYS_SUPPORTS_RELOCATABLE 566 select SYS_SUPPORTS_SMARTMIPS 567 select SYS_SUPPORTS_VPE_LOADER 568 select SYS_SUPPORTS_ZBOOT 569 select USE_OF 570 select ZONE_DMA32 if 64BIT 571 help 572 This enables support for the MIPS Technologies Malta evaluation 573 board. 574 575config MACH_PIC32 576 bool "Microchip PIC32 Family" 577 help 578 This enables support for the Microchip PIC32 family of platforms. 579 580 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 581 microcontrollers. 582 583config MACH_VR41XX 584 bool "NEC VR4100 series based machines" 585 select CEVT_R4K 586 select CSRC_R4K 587 select SYS_HAS_CPU_VR41XX 588 select SYS_SUPPORTS_MIPS16 589 select GPIOLIB 590 591config NXP_STB220 592 bool "NXP STB220 board" 593 select SOC_PNX833X 594 help 595 Support for NXP Semiconductors STB220 Development Board. 596 597config NXP_STB225 598 bool "NXP 225 board" 599 select SOC_PNX833X 600 select SOC_PNX8335 601 help 602 Support for NXP Semiconductors STB225 Development Board. 603 604config RALINK 605 bool "Ralink based machines" 606 select CEVT_R4K 607 select CSRC_R4K 608 select BOOT_RAW 609 select DMA_NONCOHERENT 610 select IRQ_MIPS_CPU 611 select USE_OF 612 select SYS_HAS_CPU_MIPS32_R1 613 select SYS_HAS_CPU_MIPS32_R2 614 select SYS_SUPPORTS_32BIT_KERNEL 615 select SYS_SUPPORTS_LITTLE_ENDIAN 616 select SYS_SUPPORTS_MIPS16 617 select SYS_HAS_EARLY_PRINTK 618 select CLKDEV_LOOKUP 619 select ARCH_HAS_RESET_CONTROLLER 620 select RESET_CONTROLLER 621 622config SGI_IP22 623 bool "SGI IP22 (Indy/Indigo2)" 624 select ARC_MEMORY 625 select ARC_PROMLIB 626 select FW_ARC 627 select FW_ARC32 628 select ARCH_MIGHT_HAVE_PC_SERIO 629 select BOOT_ELF32 630 select CEVT_R4K 631 select CSRC_R4K 632 select DEFAULT_SGI_PARTITION 633 select DMA_NONCOHERENT 634 select HAVE_EISA 635 select I8253 636 select I8259 637 select IP22_CPU_SCACHE 638 select IRQ_MIPS_CPU 639 select GENERIC_ISA_DMA_SUPPORT_BROKEN 640 select SGI_HAS_I8042 641 select SGI_HAS_INDYDOG 642 select SGI_HAS_HAL2 643 select SGI_HAS_SEEQ 644 select SGI_HAS_WD93 645 select SGI_HAS_ZILOG 646 select SWAP_IO_SPACE 647 select SYS_HAS_CPU_R4X00 648 select SYS_HAS_CPU_R5000 649 select SYS_HAS_EARLY_PRINTK 650 select SYS_SUPPORTS_32BIT_KERNEL 651 select SYS_SUPPORTS_64BIT_KERNEL 652 select SYS_SUPPORTS_BIG_ENDIAN 653 select MIPS_L1_CACHE_SHIFT_7 654 help 655 This are the SGI Indy, Challenge S and Indigo2, as well as certain 656 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 657 that runs on these, say Y here. 658 659config SGI_IP27 660 bool "SGI IP27 (Origin200/2000)" 661 select ARCH_HAS_PHYS_TO_DMA 662 select ARCH_SPARSEMEM_ENABLE 663 select FW_ARC 664 select FW_ARC64 665 select ARC_CMDLINE_ONLY 666 select BOOT_ELF64 667 select DEFAULT_SGI_PARTITION 668 select SYS_HAS_EARLY_PRINTK 669 select HAVE_PCI 670 select IRQ_MIPS_CPU 671 select IRQ_DOMAIN_HIERARCHY 672 select NR_CPUS_DEFAULT_64 673 select PCI_DRIVERS_GENERIC 674 select PCI_XTALK_BRIDGE 675 select SYS_HAS_CPU_R10000 676 select SYS_SUPPORTS_64BIT_KERNEL 677 select SYS_SUPPORTS_BIG_ENDIAN 678 select SYS_SUPPORTS_NUMA 679 select SYS_SUPPORTS_SMP 680 select MIPS_L1_CACHE_SHIFT_7 681 help 682 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 683 workstations. To compile a Linux kernel that runs on these, say Y 684 here. 685 686config SGI_IP28 687 bool "SGI IP28 (Indigo2 R10k)" 688 select ARC_MEMORY 689 select ARC_PROMLIB 690 select FW_ARC 691 select FW_ARC64 692 select ARCH_MIGHT_HAVE_PC_SERIO 693 select BOOT_ELF64 694 select CEVT_R4K 695 select CSRC_R4K 696 select DEFAULT_SGI_PARTITION 697 select DMA_NONCOHERENT 698 select GENERIC_ISA_DMA_SUPPORT_BROKEN 699 select IRQ_MIPS_CPU 700 select HAVE_EISA 701 select I8253 702 select I8259 703 select SGI_HAS_I8042 704 select SGI_HAS_INDYDOG 705 select SGI_HAS_HAL2 706 select SGI_HAS_SEEQ 707 select SGI_HAS_WD93 708 select SGI_HAS_ZILOG 709 select SWAP_IO_SPACE 710 select SYS_HAS_CPU_R10000 711 select SYS_HAS_EARLY_PRINTK 712 select SYS_SUPPORTS_64BIT_KERNEL 713 select SYS_SUPPORTS_BIG_ENDIAN 714 select MIPS_L1_CACHE_SHIFT_7 715 help 716 This is the SGI Indigo2 with R10000 processor. To compile a Linux 717 kernel that runs on these, say Y here. 718 719config SGI_IP30 720 bool "SGI IP30 (Octane/Octane2)" 721 select ARCH_HAS_PHYS_TO_DMA 722 select FW_ARC 723 select FW_ARC64 724 select BOOT_ELF64 725 select CEVT_R4K 726 select CSRC_R4K 727 select SYNC_R4K if SMP 728 select ZONE_DMA32 729 select HAVE_PCI 730 select IRQ_MIPS_CPU 731 select IRQ_DOMAIN_HIERARCHY 732 select NR_CPUS_DEFAULT_2 733 select PCI_DRIVERS_GENERIC 734 select PCI_XTALK_BRIDGE 735 select SYS_HAS_EARLY_PRINTK 736 select SYS_HAS_CPU_R10000 737 select SYS_SUPPORTS_64BIT_KERNEL 738 select SYS_SUPPORTS_BIG_ENDIAN 739 select SYS_SUPPORTS_SMP 740 select MIPS_L1_CACHE_SHIFT_7 741 select ARC_MEMORY 742 help 743 These are the SGI Octane and Octane2 graphics workstations. To 744 compile a Linux kernel that runs on these, say Y here. 745 746config SGI_IP32 747 bool "SGI IP32 (O2)" 748 select ARC_MEMORY 749 select ARC_PROMLIB 750 select ARCH_HAS_PHYS_TO_DMA 751 select FW_ARC 752 select FW_ARC32 753 select BOOT_ELF32 754 select CEVT_R4K 755 select CSRC_R4K 756 select DMA_NONCOHERENT 757 select HAVE_PCI 758 select IRQ_MIPS_CPU 759 select R5000_CPU_SCACHE 760 select RM7000_CPU_SCACHE 761 select SYS_HAS_CPU_R5000 762 select SYS_HAS_CPU_R10000 if BROKEN 763 select SYS_HAS_CPU_RM7000 764 select SYS_HAS_CPU_NEVADA 765 select SYS_SUPPORTS_64BIT_KERNEL 766 select SYS_SUPPORTS_BIG_ENDIAN 767 help 768 If you want this kernel to run on SGI O2 workstation, say Y here. 769 770config SIBYTE_CRHINE 771 bool "Sibyte BCM91120C-CRhine" 772 select BOOT_ELF32 773 select SIBYTE_BCM1120 774 select SWAP_IO_SPACE 775 select SYS_HAS_CPU_SB1 776 select SYS_SUPPORTS_BIG_ENDIAN 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_CARMEL 780 bool "Sibyte BCM91120x-Carmel" 781 select BOOT_ELF32 782 select SIBYTE_BCM1120 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_CRHONE 789 bool "Sibyte BCM91125C-CRhone" 790 select BOOT_ELF32 791 select SIBYTE_BCM1125 792 select SWAP_IO_SPACE 793 select SYS_HAS_CPU_SB1 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_HIGHMEM 796 select SYS_SUPPORTS_LITTLE_ENDIAN 797 798config SIBYTE_RHONE 799 bool "Sibyte BCM91125E-Rhone" 800 select BOOT_ELF32 801 select SIBYTE_BCM1125H 802 select SWAP_IO_SPACE 803 select SYS_HAS_CPU_SB1 804 select SYS_SUPPORTS_BIG_ENDIAN 805 select SYS_SUPPORTS_LITTLE_ENDIAN 806 807config SIBYTE_SWARM 808 bool "Sibyte BCM91250A-SWARM" 809 select BOOT_ELF32 810 select HAVE_PATA_PLATFORM 811 select SIBYTE_SB1250 812 select SWAP_IO_SPACE 813 select SYS_HAS_CPU_SB1 814 select SYS_SUPPORTS_BIG_ENDIAN 815 select SYS_SUPPORTS_HIGHMEM 816 select SYS_SUPPORTS_LITTLE_ENDIAN 817 select ZONE_DMA32 if 64BIT 818 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 819 820config SIBYTE_LITTLESUR 821 bool "Sibyte BCM91250C2-LittleSur" 822 select BOOT_ELF32 823 select HAVE_PATA_PLATFORM 824 select SIBYTE_SB1250 825 select SWAP_IO_SPACE 826 select SYS_HAS_CPU_SB1 827 select SYS_SUPPORTS_BIG_ENDIAN 828 select SYS_SUPPORTS_HIGHMEM 829 select SYS_SUPPORTS_LITTLE_ENDIAN 830 select ZONE_DMA32 if 64BIT 831 832config SIBYTE_SENTOSA 833 bool "Sibyte BCM91250E-Sentosa" 834 select BOOT_ELF32 835 select SIBYTE_SB1250 836 select SWAP_IO_SPACE 837 select SYS_HAS_CPU_SB1 838 select SYS_SUPPORTS_BIG_ENDIAN 839 select SYS_SUPPORTS_LITTLE_ENDIAN 840 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 841 842config SIBYTE_BIGSUR 843 bool "Sibyte BCM91480B-BigSur" 844 select BOOT_ELF32 845 select NR_CPUS_DEFAULT_4 846 select SIBYTE_BCM1x80 847 select SWAP_IO_SPACE 848 select SYS_HAS_CPU_SB1 849 select SYS_SUPPORTS_BIG_ENDIAN 850 select SYS_SUPPORTS_HIGHMEM 851 select SYS_SUPPORTS_LITTLE_ENDIAN 852 select ZONE_DMA32 if 64BIT 853 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 854 855config SNI_RM 856 bool "SNI RM200/300/400" 857 select ARC_MEMORY 858 select ARC_PROMLIB 859 select FW_ARC if CPU_LITTLE_ENDIAN 860 select FW_ARC32 if CPU_LITTLE_ENDIAN 861 select FW_SNIPROM if CPU_BIG_ENDIAN 862 select ARCH_MAY_HAVE_PC_FDC 863 select ARCH_MIGHT_HAVE_PC_PARPORT 864 select ARCH_MIGHT_HAVE_PC_SERIO 865 select BOOT_ELF32 866 select CEVT_R4K 867 select CSRC_R4K 868 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 869 select DMA_NONCOHERENT 870 select GENERIC_ISA_DMA 871 select HAVE_EISA 872 select HAVE_PCSPKR_PLATFORM 873 select HAVE_PCI 874 select IRQ_MIPS_CPU 875 select I8253 876 select I8259 877 select ISA 878 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 879 select SYS_HAS_CPU_R4X00 880 select SYS_HAS_CPU_R5000 881 select SYS_HAS_CPU_R10000 882 select R5000_CPU_SCACHE 883 select SYS_HAS_EARLY_PRINTK 884 select SYS_SUPPORTS_32BIT_KERNEL 885 select SYS_SUPPORTS_64BIT_KERNEL 886 select SYS_SUPPORTS_BIG_ENDIAN 887 select SYS_SUPPORTS_HIGHMEM 888 select SYS_SUPPORTS_LITTLE_ENDIAN 889 help 890 The SNI RM200/300/400 are MIPS-based machines manufactured by 891 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 892 Technology and now in turn merged with Fujitsu. Say Y here to 893 support this machine type. 894 895config MACH_TX39XX 896 bool "Toshiba TX39 series based machines" 897 898config MACH_TX49XX 899 bool "Toshiba TX49 series based machines" 900 901config MIKROTIK_RB532 902 bool "Mikrotik RB532 boards" 903 select CEVT_R4K 904 select CSRC_R4K 905 select DMA_NONCOHERENT 906 select HAVE_PCI 907 select IRQ_MIPS_CPU 908 select SYS_HAS_CPU_MIPS32_R1 909 select SYS_SUPPORTS_32BIT_KERNEL 910 select SYS_SUPPORTS_LITTLE_ENDIAN 911 select SWAP_IO_SPACE 912 select BOOT_RAW 913 select GPIOLIB 914 select MIPS_L1_CACHE_SHIFT_4 915 help 916 Support the Mikrotik(tm) RouterBoard 532 series, 917 based on the IDT RC32434 SoC. 918 919config CAVIUM_OCTEON_SOC 920 bool "Cavium Networks Octeon SoC based boards" 921 select CEVT_R4K 922 select ARCH_HAS_PHYS_TO_DMA 923 select HAVE_RAPIDIO 924 select PHYS_ADDR_T_64BIT 925 select SYS_SUPPORTS_64BIT_KERNEL 926 select SYS_SUPPORTS_BIG_ENDIAN 927 select EDAC_SUPPORT 928 select EDAC_ATOMIC_SCRUB 929 select SYS_SUPPORTS_LITTLE_ENDIAN 930 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 931 select SYS_HAS_EARLY_PRINTK 932 select SYS_HAS_CPU_CAVIUM_OCTEON 933 select HAVE_PCI 934 select HAVE_PLAT_DELAY 935 select HAVE_PLAT_FW_INIT_CMDLINE 936 select HAVE_PLAT_MEMCPY 937 select ZONE_DMA32 938 select HOLES_IN_ZONE 939 select GPIOLIB 940 select USE_OF 941 select ARCH_SPARSEMEM_ENABLE 942 select SYS_SUPPORTS_SMP 943 select NR_CPUS_DEFAULT_64 944 select MIPS_NR_CPU_NR_MAP_1024 945 select BUILTIN_DTB 946 select MTD_COMPLEX_MAPPINGS 947 select SWIOTLB 948 select SYS_SUPPORTS_RELOCATABLE 949 help 950 This option supports all of the Octeon reference boards from Cavium 951 Networks. It builds a kernel that dynamically determines the Octeon 952 CPU type and supports all known board reference implementations. 953 Some of the supported boards are: 954 EBT3000 955 EBH3000 956 EBH3100 957 Thunder 958 Kodama 959 Hikari 960 Say Y here for most Octeon reference boards. 961 962config NLM_XLR_BOARD 963 bool "Netlogic XLR/XLS based systems" 964 select BOOT_ELF32 965 select NLM_COMMON 966 select SYS_HAS_CPU_XLR 967 select SYS_SUPPORTS_SMP 968 select HAVE_PCI 969 select SWAP_IO_SPACE 970 select SYS_SUPPORTS_32BIT_KERNEL 971 select SYS_SUPPORTS_64BIT_KERNEL 972 select PHYS_ADDR_T_64BIT 973 select SYS_SUPPORTS_BIG_ENDIAN 974 select SYS_SUPPORTS_HIGHMEM 975 select NR_CPUS_DEFAULT_32 976 select CEVT_R4K 977 select CSRC_R4K 978 select IRQ_MIPS_CPU 979 select ZONE_DMA32 if 64BIT 980 select SYNC_R4K 981 select SYS_HAS_EARLY_PRINTK 982 select SYS_SUPPORTS_ZBOOT 983 select SYS_SUPPORTS_ZBOOT_UART16550 984 help 985 Support for systems based on Netlogic XLR and XLS processors. 986 Say Y here if you have a XLR or XLS based board. 987 988config NLM_XLP_BOARD 989 bool "Netlogic XLP based systems" 990 select BOOT_ELF32 991 select NLM_COMMON 992 select SYS_HAS_CPU_XLP 993 select SYS_SUPPORTS_SMP 994 select HAVE_PCI 995 select SYS_SUPPORTS_32BIT_KERNEL 996 select SYS_SUPPORTS_64BIT_KERNEL 997 select PHYS_ADDR_T_64BIT 998 select GPIOLIB 999 select SYS_SUPPORTS_BIG_ENDIAN 1000 select SYS_SUPPORTS_LITTLE_ENDIAN 1001 select SYS_SUPPORTS_HIGHMEM 1002 select NR_CPUS_DEFAULT_32 1003 select CEVT_R4K 1004 select CSRC_R4K 1005 select IRQ_MIPS_CPU 1006 select ZONE_DMA32 if 64BIT 1007 select SYNC_R4K 1008 select SYS_HAS_EARLY_PRINTK 1009 select USE_OF 1010 select SYS_SUPPORTS_ZBOOT 1011 select SYS_SUPPORTS_ZBOOT_UART16550 1012 help 1013 This board is based on Netlogic XLP Processor. 1014 Say Y here if you have a XLP based board. 1015 1016config MIPS_PARAVIRT 1017 bool "Para-Virtualized guest system" 1018 select CEVT_R4K 1019 select CSRC_R4K 1020 select SYS_SUPPORTS_64BIT_KERNEL 1021 select SYS_SUPPORTS_32BIT_KERNEL 1022 select SYS_SUPPORTS_BIG_ENDIAN 1023 select SYS_SUPPORTS_SMP 1024 select NR_CPUS_DEFAULT_4 1025 select SYS_HAS_EARLY_PRINTK 1026 select SYS_HAS_CPU_MIPS32_R2 1027 select SYS_HAS_CPU_MIPS64_R2 1028 select SYS_HAS_CPU_CAVIUM_OCTEON 1029 select HAVE_PCI 1030 select SWAP_IO_SPACE 1031 help 1032 This option supports guest running under ???? 1033 1034endchoice 1035 1036source "arch/mips/alchemy/Kconfig" 1037source "arch/mips/ath25/Kconfig" 1038source "arch/mips/ath79/Kconfig" 1039source "arch/mips/bcm47xx/Kconfig" 1040source "arch/mips/bcm63xx/Kconfig" 1041source "arch/mips/bmips/Kconfig" 1042source "arch/mips/generic/Kconfig" 1043source "arch/mips/jazz/Kconfig" 1044source "arch/mips/jz4740/Kconfig" 1045source "arch/mips/lantiq/Kconfig" 1046source "arch/mips/pic32/Kconfig" 1047source "arch/mips/pistachio/Kconfig" 1048source "arch/mips/ralink/Kconfig" 1049source "arch/mips/sgi-ip27/Kconfig" 1050source "arch/mips/sibyte/Kconfig" 1051source "arch/mips/txx9/Kconfig" 1052source "arch/mips/vr41xx/Kconfig" 1053source "arch/mips/cavium-octeon/Kconfig" 1054source "arch/mips/loongson2ef/Kconfig" 1055source "arch/mips/loongson32/Kconfig" 1056source "arch/mips/loongson64/Kconfig" 1057source "arch/mips/netlogic/Kconfig" 1058source "arch/mips/paravirt/Kconfig" 1059 1060endmenu 1061 1062config GENERIC_HWEIGHT 1063 bool 1064 default y 1065 1066config GENERIC_CALIBRATE_DELAY 1067 bool 1068 default y 1069 1070config SCHED_OMIT_FRAME_POINTER 1071 bool 1072 default y 1073 1074# 1075# Select some configuration options automatically based on user selections. 1076# 1077config FW_ARC 1078 bool 1079 1080config ARCH_MAY_HAVE_PC_FDC 1081 bool 1082 1083config BOOT_RAW 1084 bool 1085 1086config CEVT_BCM1480 1087 bool 1088 1089config CEVT_DS1287 1090 bool 1091 1092config CEVT_GT641XX 1093 bool 1094 1095config CEVT_R4K 1096 bool 1097 1098config CEVT_SB1250 1099 bool 1100 1101config CEVT_TXX9 1102 bool 1103 1104config CSRC_BCM1480 1105 bool 1106 1107config CSRC_IOASIC 1108 bool 1109 1110config CSRC_R4K 1111 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1112 bool 1113 1114config CSRC_SB1250 1115 bool 1116 1117config MIPS_CLOCK_VSYSCALL 1118 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1119 1120config GPIO_TXX9 1121 select GPIOLIB 1122 bool 1123 1124config FW_CFE 1125 bool 1126 1127config ARCH_SUPPORTS_UPROBES 1128 bool 1129 1130config DMA_MAYBE_COHERENT 1131 select ARCH_HAS_DMA_COHERENCE_H 1132 select DMA_NONCOHERENT 1133 bool 1134 1135config DMA_PERDEV_COHERENT 1136 bool 1137 select ARCH_HAS_SETUP_DMA_OPS 1138 select DMA_NONCOHERENT 1139 1140config DMA_NONCOHERENT 1141 bool 1142 # 1143 # MIPS allows mixing "slightly different" Cacheability and Coherency 1144 # Attribute bits. It is believed that the uncached access through 1145 # KSEG1 and the implementation specific "uncached accelerated" used 1146 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1147 # significant advantages. 1148 # 1149 select ARCH_HAS_DMA_WRITE_COMBINE 1150 select ARCH_HAS_DMA_PREP_COHERENT 1151 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1152 select ARCH_HAS_DMA_SET_UNCACHED 1153 select DMA_NONCOHERENT_MMAP 1154 select DMA_NONCOHERENT_CACHE_SYNC 1155 select NEED_DMA_MAP_STATE 1156 1157config SYS_HAS_EARLY_PRINTK 1158 bool 1159 1160config SYS_SUPPORTS_HOTPLUG_CPU 1161 bool 1162 1163config MIPS_BONITO64 1164 bool 1165 1166config MIPS_MSC 1167 bool 1168 1169config SYNC_R4K 1170 bool 1171 1172config MIPS_MACHINE 1173 def_bool n 1174 1175config NO_IOPORT_MAP 1176 def_bool n 1177 1178config GENERIC_CSUM 1179 def_bool CPU_NO_LOAD_STORE_LR 1180 1181config GENERIC_ISA_DMA 1182 bool 1183 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1184 select ISA_DMA_API 1185 1186config GENERIC_ISA_DMA_SUPPORT_BROKEN 1187 bool 1188 select GENERIC_ISA_DMA 1189 1190config HAVE_PLAT_DELAY 1191 bool 1192 1193config HAVE_PLAT_FW_INIT_CMDLINE 1194 bool 1195 1196config HAVE_PLAT_MEMCPY 1197 bool 1198 1199config ISA_DMA_API 1200 bool 1201 1202config HOLES_IN_ZONE 1203 bool 1204 1205config SYS_SUPPORTS_RELOCATABLE 1206 bool 1207 help 1208 Selected if the platform supports relocating the kernel. 1209 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1210 to allow access to command line and entropy sources. 1211 1212config MIPS_CBPF_JIT 1213 def_bool y 1214 depends on BPF_JIT && HAVE_CBPF_JIT 1215 1216config MIPS_EBPF_JIT 1217 def_bool y 1218 depends on BPF_JIT && HAVE_EBPF_JIT 1219 1220 1221# 1222# Endianness selection. Sufficiently obscure so many users don't know what to 1223# answer,so we try hard to limit the available choices. Also the use of a 1224# choice statement should be more obvious to the user. 1225# 1226choice 1227 prompt "Endianness selection" 1228 help 1229 Some MIPS machines can be configured for either little or big endian 1230 byte order. These modes require different kernels and a different 1231 Linux distribution. In general there is one preferred byteorder for a 1232 particular system but some systems are just as commonly used in the 1233 one or the other endianness. 1234 1235config CPU_BIG_ENDIAN 1236 bool "Big endian" 1237 depends on SYS_SUPPORTS_BIG_ENDIAN 1238 1239config CPU_LITTLE_ENDIAN 1240 bool "Little endian" 1241 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1242 1243endchoice 1244 1245config EXPORT_UASM 1246 bool 1247 1248config SYS_SUPPORTS_APM_EMULATION 1249 bool 1250 1251config SYS_SUPPORTS_BIG_ENDIAN 1252 bool 1253 1254config SYS_SUPPORTS_LITTLE_ENDIAN 1255 bool 1256 1257config SYS_SUPPORTS_HUGETLBFS 1258 bool 1259 depends on CPU_SUPPORTS_HUGEPAGES 1260 default y 1261 1262config MIPS_HUGE_TLB_SUPPORT 1263 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1264 1265config IRQ_CPU_RM7K 1266 bool 1267 1268config IRQ_MSP_SLP 1269 bool 1270 1271config IRQ_MSP_CIC 1272 bool 1273 1274config IRQ_TXX9 1275 bool 1276 1277config IRQ_GT641XX 1278 bool 1279 1280config PCI_GT64XXX_PCI0 1281 bool 1282 1283config PCI_XTALK_BRIDGE 1284 bool 1285 1286config NO_EXCEPT_FILL 1287 bool 1288 1289config SOC_PNX833X 1290 bool 1291 select CEVT_R4K 1292 select CSRC_R4K 1293 select IRQ_MIPS_CPU 1294 select DMA_NONCOHERENT 1295 select SYS_HAS_CPU_MIPS32_R2 1296 select SYS_SUPPORTS_32BIT_KERNEL 1297 select SYS_SUPPORTS_LITTLE_ENDIAN 1298 select SYS_SUPPORTS_BIG_ENDIAN 1299 select SYS_SUPPORTS_MIPS16 1300 select CPU_MIPSR2_IRQ_VI 1301 1302config SOC_PNX8335 1303 bool 1304 select SOC_PNX833X 1305 1306config MIPS_SPRAM 1307 bool 1308 1309config SWAP_IO_SPACE 1310 bool 1311 1312config SGI_HAS_INDYDOG 1313 bool 1314 1315config SGI_HAS_HAL2 1316 bool 1317 1318config SGI_HAS_SEEQ 1319 bool 1320 1321config SGI_HAS_WD93 1322 bool 1323 1324config SGI_HAS_ZILOG 1325 bool 1326 1327config SGI_HAS_I8042 1328 bool 1329 1330config DEFAULT_SGI_PARTITION 1331 bool 1332 1333config FW_ARC32 1334 bool 1335 1336config FW_SNIPROM 1337 bool 1338 1339config BOOT_ELF32 1340 bool 1341 1342config MIPS_L1_CACHE_SHIFT_4 1343 bool 1344 1345config MIPS_L1_CACHE_SHIFT_5 1346 bool 1347 1348config MIPS_L1_CACHE_SHIFT_6 1349 bool 1350 1351config MIPS_L1_CACHE_SHIFT_7 1352 bool 1353 1354config MIPS_L1_CACHE_SHIFT 1355 int 1356 default "7" if MIPS_L1_CACHE_SHIFT_7 1357 default "6" if MIPS_L1_CACHE_SHIFT_6 1358 default "5" if MIPS_L1_CACHE_SHIFT_5 1359 default "4" if MIPS_L1_CACHE_SHIFT_4 1360 default "5" 1361 1362config ARC_CMDLINE_ONLY 1363 bool 1364 1365config ARC_CONSOLE 1366 bool "ARC console support" 1367 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1368 1369config ARC_MEMORY 1370 bool 1371 1372config ARC_PROMLIB 1373 bool 1374 1375config FW_ARC64 1376 bool 1377 1378config BOOT_ELF64 1379 bool 1380 1381menu "CPU selection" 1382 1383choice 1384 prompt "CPU type" 1385 default CPU_R4X00 1386 1387config CPU_LOONGSON64 1388 bool "Loongson 64-bit CPU" 1389 depends on SYS_HAS_CPU_LOONGSON64 1390 select ARCH_HAS_PHYS_TO_DMA 1391 select CPU_MIPSR2 1392 select CPU_HAS_PREFETCH 1393 select CPU_SUPPORTS_64BIT_KERNEL 1394 select CPU_SUPPORTS_HIGHMEM 1395 select CPU_SUPPORTS_HUGEPAGES 1396 select CPU_SUPPORTS_MSA 1397 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1398 select CPU_MIPSR2_IRQ_VI 1399 select WEAK_ORDERING 1400 select WEAK_REORDERING_BEYOND_LLSC 1401 select MIPS_ASID_BITS_VARIABLE 1402 select MIPS_PGD_C0_CONTEXT 1403 select MIPS_L1_CACHE_SHIFT_6 1404 select GPIOLIB 1405 select SWIOTLB 1406 select HAVE_KVM 1407 help 1408 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1409 cores implements the MIPS64R2 instruction set with many extensions, 1410 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1411 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1412 Loongson-2E/2F is not covered here and will be removed in future. 1413 1414config LOONGSON3_ENHANCEMENT 1415 bool "New Loongson-3 CPU Enhancements" 1416 default n 1417 depends on CPU_LOONGSON64 1418 help 1419 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1420 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1421 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1422 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1423 Fast TLB refill support, etc. 1424 1425 This option enable those enhancements which are not probed at run 1426 time. If you want a generic kernel to run on all Loongson 3 machines, 1427 please say 'N' here. If you want a high-performance kernel to run on 1428 new Loongson-3 machines only, please say 'Y' here. 1429 1430config CPU_LOONGSON3_WORKAROUNDS 1431 bool "Old Loongson-3 LLSC Workarounds" 1432 default y if SMP 1433 depends on CPU_LOONGSON64 1434 help 1435 Loongson-3 processors have the llsc issues which require workarounds. 1436 Without workarounds the system may hang unexpectedly. 1437 1438 Newer Loongson-3 will fix these issues and no workarounds are needed. 1439 The workarounds have no significant side effect on them but may 1440 decrease the performance of the system so this option should be 1441 disabled unless the kernel is intended to be run on old systems. 1442 1443 If unsure, please say Y. 1444 1445config CPU_LOONGSON3_CPUCFG_EMULATION 1446 bool "Emulate the CPUCFG instruction on older Loongson cores" 1447 default y 1448 depends on CPU_LOONGSON64 1449 help 1450 Loongson-3A R4 and newer have the CPUCFG instruction available for 1451 userland to query CPU capabilities, much like CPUID on x86. This 1452 option provides emulation of the instruction on older Loongson 1453 cores, back to Loongson-3A1000. 1454 1455 If unsure, please say Y. 1456 1457config CPU_LOONGSON2E 1458 bool "Loongson 2E" 1459 depends on SYS_HAS_CPU_LOONGSON2E 1460 select CPU_LOONGSON2EF 1461 help 1462 The Loongson 2E processor implements the MIPS III instruction set 1463 with many extensions. 1464 1465 It has an internal FPGA northbridge, which is compatible to 1466 bonito64. 1467 1468config CPU_LOONGSON2F 1469 bool "Loongson 2F" 1470 depends on SYS_HAS_CPU_LOONGSON2F 1471 select CPU_LOONGSON2EF 1472 select GPIOLIB 1473 help 1474 The Loongson 2F processor implements the MIPS III instruction set 1475 with many extensions. 1476 1477 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1478 have a similar programming interface with FPGA northbridge used in 1479 Loongson2E. 1480 1481config CPU_LOONGSON1B 1482 bool "Loongson 1B" 1483 depends on SYS_HAS_CPU_LOONGSON1B 1484 select CPU_LOONGSON32 1485 select LEDS_GPIO_REGISTER 1486 help 1487 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1488 Release 1 instruction set and part of the MIPS32 Release 2 1489 instruction set. 1490 1491config CPU_LOONGSON1C 1492 bool "Loongson 1C" 1493 depends on SYS_HAS_CPU_LOONGSON1C 1494 select CPU_LOONGSON32 1495 select LEDS_GPIO_REGISTER 1496 help 1497 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1498 Release 1 instruction set and part of the MIPS32 Release 2 1499 instruction set. 1500 1501config CPU_MIPS32_R1 1502 bool "MIPS32 Release 1" 1503 depends on SYS_HAS_CPU_MIPS32_R1 1504 select CPU_HAS_PREFETCH 1505 select CPU_SUPPORTS_32BIT_KERNEL 1506 select CPU_SUPPORTS_HIGHMEM 1507 help 1508 Choose this option to build a kernel for release 1 or later of the 1509 MIPS32 architecture. Most modern embedded systems with a 32-bit 1510 MIPS processor are based on a MIPS32 processor. If you know the 1511 specific type of processor in your system, choose those that one 1512 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1513 Release 2 of the MIPS32 architecture is available since several 1514 years so chances are you even have a MIPS32 Release 2 processor 1515 in which case you should choose CPU_MIPS32_R2 instead for better 1516 performance. 1517 1518config CPU_MIPS32_R2 1519 bool "MIPS32 Release 2" 1520 depends on SYS_HAS_CPU_MIPS32_R2 1521 select CPU_HAS_PREFETCH 1522 select CPU_SUPPORTS_32BIT_KERNEL 1523 select CPU_SUPPORTS_HIGHMEM 1524 select CPU_SUPPORTS_MSA 1525 select HAVE_KVM 1526 help 1527 Choose this option to build a kernel for release 2 or later of the 1528 MIPS32 architecture. Most modern embedded systems with a 32-bit 1529 MIPS processor are based on a MIPS32 processor. If you know the 1530 specific type of processor in your system, choose those that one 1531 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1532 1533config CPU_MIPS32_R5 1534 bool "MIPS32 Release 5" 1535 depends on SYS_HAS_CPU_MIPS32_R5 1536 select CPU_HAS_PREFETCH 1537 select CPU_SUPPORTS_32BIT_KERNEL 1538 select CPU_SUPPORTS_HIGHMEM 1539 select CPU_SUPPORTS_MSA 1540 select HAVE_KVM 1541 select MIPS_O32_FP64_SUPPORT 1542 help 1543 Choose this option to build a kernel for release 5 or later of the 1544 MIPS32 architecture. New MIPS processors, starting with the Warrior 1545 family, are based on a MIPS32r5 processor. If you own an older 1546 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1547 1548config CPU_MIPS32_R6 1549 bool "MIPS32 Release 6" 1550 depends on SYS_HAS_CPU_MIPS32_R6 1551 select CPU_HAS_PREFETCH 1552 select CPU_NO_LOAD_STORE_LR 1553 select CPU_SUPPORTS_32BIT_KERNEL 1554 select CPU_SUPPORTS_HIGHMEM 1555 select CPU_SUPPORTS_MSA 1556 select HAVE_KVM 1557 select MIPS_O32_FP64_SUPPORT 1558 help 1559 Choose this option to build a kernel for release 6 or later of the 1560 MIPS32 architecture. New MIPS processors, starting with the Warrior 1561 family, are based on a MIPS32r6 processor. If you own an older 1562 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1563 1564config CPU_MIPS64_R1 1565 bool "MIPS64 Release 1" 1566 depends on SYS_HAS_CPU_MIPS64_R1 1567 select CPU_HAS_PREFETCH 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 select CPU_SUPPORTS_64BIT_KERNEL 1570 select CPU_SUPPORTS_HIGHMEM 1571 select CPU_SUPPORTS_HUGEPAGES 1572 help 1573 Choose this option to build a kernel for release 1 or later of the 1574 MIPS64 architecture. Many modern embedded systems with a 64-bit 1575 MIPS processor are based on a MIPS64 processor. If you know the 1576 specific type of processor in your system, choose those that one 1577 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1578 Release 2 of the MIPS64 architecture is available since several 1579 years so chances are you even have a MIPS64 Release 2 processor 1580 in which case you should choose CPU_MIPS64_R2 instead for better 1581 performance. 1582 1583config CPU_MIPS64_R2 1584 bool "MIPS64 Release 2" 1585 depends on SYS_HAS_CPU_MIPS64_R2 1586 select CPU_HAS_PREFETCH 1587 select CPU_SUPPORTS_32BIT_KERNEL 1588 select CPU_SUPPORTS_64BIT_KERNEL 1589 select CPU_SUPPORTS_HIGHMEM 1590 select CPU_SUPPORTS_HUGEPAGES 1591 select CPU_SUPPORTS_MSA 1592 select HAVE_KVM 1593 help 1594 Choose this option to build a kernel for release 2 or later of the 1595 MIPS64 architecture. Many modern embedded systems with a 64-bit 1596 MIPS processor are based on a MIPS64 processor. If you know the 1597 specific type of processor in your system, choose those that one 1598 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1599 1600config CPU_MIPS64_R5 1601 bool "MIPS64 Release 5" 1602 depends on SYS_HAS_CPU_MIPS64_R5 1603 select CPU_HAS_PREFETCH 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 5 or later of the 1613 MIPS64 architecture. This is a intermediate MIPS architecture 1614 release partly implementing release 6 features. Though there is no 1615 any hardware known to be based on this release. 1616 1617config CPU_MIPS64_R6 1618 bool "MIPS64 Release 6" 1619 depends on SYS_HAS_CPU_MIPS64_R6 1620 select CPU_HAS_PREFETCH 1621 select CPU_NO_LOAD_STORE_LR 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 select CPU_SUPPORTS_64BIT_KERNEL 1624 select CPU_SUPPORTS_HIGHMEM 1625 select CPU_SUPPORTS_HUGEPAGES 1626 select CPU_SUPPORTS_MSA 1627 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1628 select HAVE_KVM 1629 help 1630 Choose this option to build a kernel for release 6 or later of the 1631 MIPS64 architecture. New MIPS processors, starting with the Warrior 1632 family, are based on a MIPS64r6 processor. If you own an older 1633 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1634 1635config CPU_P5600 1636 bool "MIPS Warrior P5600" 1637 depends on SYS_HAS_CPU_P5600 1638 select CPU_HAS_PREFETCH 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_HIGHMEM 1641 select CPU_SUPPORTS_MSA 1642 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1643 select CPU_SUPPORTS_CPUFREQ 1644 select CPU_MIPSR2_IRQ_VI 1645 select CPU_MIPSR2_IRQ_EI 1646 select HAVE_KVM 1647 select MIPS_O32_FP64_SUPPORT 1648 help 1649 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1650 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1651 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1652 level features like up to six P5600 calculation cores, CM2 with L2 1653 cache, IOCU/IOMMU (though might be unused depending on the system- 1654 specific IP core configuration), GIC, CPC, virtualisation module, 1655 eJTAG and PDtrace. 1656 1657config CPU_R3000 1658 bool "R3000" 1659 depends on SYS_HAS_CPU_R3000 1660 select CPU_HAS_WB 1661 select CPU_R3K_TLB 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_HIGHMEM 1664 help 1665 Please make sure to pick the right CPU type. Linux/MIPS is not 1666 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1667 *not* work on R4000 machines and vice versa. However, since most 1668 of the supported machines have an R4000 (or similar) CPU, R4x00 1669 might be a safe bet. If the resulting kernel does not work, 1670 try to recompile with R3000. 1671 1672config CPU_TX39XX 1673 bool "R39XX" 1674 depends on SYS_HAS_CPU_TX39XX 1675 select CPU_SUPPORTS_32BIT_KERNEL 1676 select CPU_R3K_TLB 1677 1678config CPU_VR41XX 1679 bool "R41xx" 1680 depends on SYS_HAS_CPU_VR41XX 1681 select CPU_SUPPORTS_32BIT_KERNEL 1682 select CPU_SUPPORTS_64BIT_KERNEL 1683 help 1684 The options selects support for the NEC VR4100 series of processors. 1685 Only choose this option if you have one of these processors as a 1686 kernel built with this option will not run on any other type of 1687 processor or vice versa. 1688 1689config CPU_R4X00 1690 bool "R4x00" 1691 depends on SYS_HAS_CPU_R4X00 1692 select CPU_SUPPORTS_32BIT_KERNEL 1693 select CPU_SUPPORTS_64BIT_KERNEL 1694 select CPU_SUPPORTS_HUGEPAGES 1695 help 1696 MIPS Technologies R4000-series processors other than 4300, including 1697 the R4000, R4400, R4600, and 4700. 1698 1699config CPU_TX49XX 1700 bool "R49XX" 1701 depends on SYS_HAS_CPU_TX49XX 1702 select CPU_HAS_PREFETCH 1703 select CPU_SUPPORTS_32BIT_KERNEL 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select CPU_SUPPORTS_HUGEPAGES 1706 1707config CPU_R5000 1708 bool "R5000" 1709 depends on SYS_HAS_CPU_R5000 1710 select CPU_SUPPORTS_32BIT_KERNEL 1711 select CPU_SUPPORTS_64BIT_KERNEL 1712 select CPU_SUPPORTS_HUGEPAGES 1713 help 1714 MIPS Technologies R5000-series processors other than the Nevada. 1715 1716config CPU_R5500 1717 bool "R5500" 1718 depends on SYS_HAS_CPU_R5500 1719 select CPU_SUPPORTS_32BIT_KERNEL 1720 select CPU_SUPPORTS_64BIT_KERNEL 1721 select CPU_SUPPORTS_HUGEPAGES 1722 help 1723 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1724 instruction set. 1725 1726config CPU_NEVADA 1727 bool "RM52xx" 1728 depends on SYS_HAS_CPU_NEVADA 1729 select CPU_SUPPORTS_32BIT_KERNEL 1730 select CPU_SUPPORTS_64BIT_KERNEL 1731 select CPU_SUPPORTS_HUGEPAGES 1732 help 1733 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1734 1735config CPU_R10000 1736 bool "R10000" 1737 depends on SYS_HAS_CPU_R10000 1738 select CPU_HAS_PREFETCH 1739 select CPU_SUPPORTS_32BIT_KERNEL 1740 select CPU_SUPPORTS_64BIT_KERNEL 1741 select CPU_SUPPORTS_HIGHMEM 1742 select CPU_SUPPORTS_HUGEPAGES 1743 help 1744 MIPS Technologies R10000-series processors. 1745 1746config CPU_RM7000 1747 bool "RM7000" 1748 depends on SYS_HAS_CPU_RM7000 1749 select CPU_HAS_PREFETCH 1750 select CPU_SUPPORTS_32BIT_KERNEL 1751 select CPU_SUPPORTS_64BIT_KERNEL 1752 select CPU_SUPPORTS_HIGHMEM 1753 select CPU_SUPPORTS_HUGEPAGES 1754 1755config CPU_SB1 1756 bool "SB1" 1757 depends on SYS_HAS_CPU_SB1 1758 select CPU_SUPPORTS_32BIT_KERNEL 1759 select CPU_SUPPORTS_64BIT_KERNEL 1760 select CPU_SUPPORTS_HIGHMEM 1761 select CPU_SUPPORTS_HUGEPAGES 1762 select WEAK_ORDERING 1763 1764config CPU_CAVIUM_OCTEON 1765 bool "Cavium Octeon processor" 1766 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1767 select CPU_HAS_PREFETCH 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select WEAK_ORDERING 1770 select CPU_SUPPORTS_HIGHMEM 1771 select CPU_SUPPORTS_HUGEPAGES 1772 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1773 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1774 select MIPS_L1_CACHE_SHIFT_7 1775 select HAVE_KVM 1776 help 1777 The Cavium Octeon processor is a highly integrated chip containing 1778 many ethernet hardware widgets for networking tasks. The processor 1779 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1780 Full details can be found at http://www.caviumnetworks.com. 1781 1782config CPU_BMIPS 1783 bool "Broadcom BMIPS" 1784 depends on SYS_HAS_CPU_BMIPS 1785 select CPU_MIPS32 1786 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1787 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1788 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1789 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1790 select CPU_SUPPORTS_32BIT_KERNEL 1791 select DMA_NONCOHERENT 1792 select IRQ_MIPS_CPU 1793 select SWAP_IO_SPACE 1794 select WEAK_ORDERING 1795 select CPU_SUPPORTS_HIGHMEM 1796 select CPU_HAS_PREFETCH 1797 select CPU_SUPPORTS_CPUFREQ 1798 select MIPS_EXTERNAL_TIMER 1799 help 1800 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1801 1802config CPU_XLR 1803 bool "Netlogic XLR SoC" 1804 depends on SYS_HAS_CPU_XLR 1805 select CPU_SUPPORTS_32BIT_KERNEL 1806 select CPU_SUPPORTS_64BIT_KERNEL 1807 select CPU_SUPPORTS_HIGHMEM 1808 select CPU_SUPPORTS_HUGEPAGES 1809 select WEAK_ORDERING 1810 select WEAK_REORDERING_BEYOND_LLSC 1811 help 1812 Netlogic Microsystems XLR/XLS processors. 1813 1814config CPU_XLP 1815 bool "Netlogic XLP SoC" 1816 depends on SYS_HAS_CPU_XLP 1817 select CPU_SUPPORTS_32BIT_KERNEL 1818 select CPU_SUPPORTS_64BIT_KERNEL 1819 select CPU_SUPPORTS_HIGHMEM 1820 select WEAK_ORDERING 1821 select WEAK_REORDERING_BEYOND_LLSC 1822 select CPU_HAS_PREFETCH 1823 select CPU_MIPSR2 1824 select CPU_SUPPORTS_HUGEPAGES 1825 select MIPS_ASID_BITS_VARIABLE 1826 help 1827 Netlogic Microsystems XLP processors. 1828endchoice 1829 1830config CPU_MIPS32_3_5_FEATURES 1831 bool "MIPS32 Release 3.5 Features" 1832 depends on SYS_HAS_CPU_MIPS32_R3_5 1833 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1834 CPU_P5600 1835 help 1836 Choose this option to build a kernel for release 2 or later of the 1837 MIPS32 architecture including features from the 3.5 release such as 1838 support for Enhanced Virtual Addressing (EVA). 1839 1840config CPU_MIPS32_3_5_EVA 1841 bool "Enhanced Virtual Addressing (EVA)" 1842 depends on CPU_MIPS32_3_5_FEATURES 1843 select EVA 1844 default y 1845 help 1846 Choose this option if you want to enable the Enhanced Virtual 1847 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1848 One of its primary benefits is an increase in the maximum size 1849 of lowmem (up to 3GB). If unsure, say 'N' here. 1850 1851config CPU_MIPS32_R5_FEATURES 1852 bool "MIPS32 Release 5 Features" 1853 depends on SYS_HAS_CPU_MIPS32_R5 1854 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1855 help 1856 Choose this option to build a kernel for release 2 or later of the 1857 MIPS32 architecture including features from release 5 such as 1858 support for Extended Physical Addressing (XPA). 1859 1860config CPU_MIPS32_R5_XPA 1861 bool "Extended Physical Addressing (XPA)" 1862 depends on CPU_MIPS32_R5_FEATURES 1863 depends on !EVA 1864 depends on !PAGE_SIZE_4KB 1865 depends on SYS_SUPPORTS_HIGHMEM 1866 select XPA 1867 select HIGHMEM 1868 select PHYS_ADDR_T_64BIT 1869 default n 1870 help 1871 Choose this option if you want to enable the Extended Physical 1872 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1873 benefit is to increase physical addressing equal to or greater 1874 than 40 bits. Note that this has the side effect of turning on 1875 64-bit addressing which in turn makes the PTEs 64-bit in size. 1876 If unsure, say 'N' here. 1877 1878if CPU_LOONGSON2F 1879config CPU_NOP_WORKAROUNDS 1880 bool 1881 1882config CPU_JUMP_WORKAROUNDS 1883 bool 1884 1885config CPU_LOONGSON2F_WORKAROUNDS 1886 bool "Loongson 2F Workarounds" 1887 default y 1888 select CPU_NOP_WORKAROUNDS 1889 select CPU_JUMP_WORKAROUNDS 1890 help 1891 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1892 require workarounds. Without workarounds the system may hang 1893 unexpectedly. For more information please refer to the gas 1894 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1895 1896 Loongson 2F03 and later have fixed these issues and no workarounds 1897 are needed. The workarounds have no significant side effect on them 1898 but may decrease the performance of the system so this option should 1899 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1900 systems. 1901 1902 If unsure, please say Y. 1903endif # CPU_LOONGSON2F 1904 1905config SYS_SUPPORTS_ZBOOT 1906 bool 1907 select HAVE_KERNEL_GZIP 1908 select HAVE_KERNEL_BZIP2 1909 select HAVE_KERNEL_LZ4 1910 select HAVE_KERNEL_LZMA 1911 select HAVE_KERNEL_LZO 1912 select HAVE_KERNEL_XZ 1913 1914config SYS_SUPPORTS_ZBOOT_UART16550 1915 bool 1916 select SYS_SUPPORTS_ZBOOT 1917 1918config SYS_SUPPORTS_ZBOOT_UART_PROM 1919 bool 1920 select SYS_SUPPORTS_ZBOOT 1921 1922config CPU_LOONGSON2EF 1923 bool 1924 select CPU_SUPPORTS_32BIT_KERNEL 1925 select CPU_SUPPORTS_64BIT_KERNEL 1926 select CPU_SUPPORTS_HIGHMEM 1927 select CPU_SUPPORTS_HUGEPAGES 1928 select ARCH_HAS_PHYS_TO_DMA 1929 1930config CPU_LOONGSON32 1931 bool 1932 select CPU_MIPS32 1933 select CPU_MIPSR2 1934 select CPU_HAS_PREFETCH 1935 select CPU_SUPPORTS_32BIT_KERNEL 1936 select CPU_SUPPORTS_HIGHMEM 1937 select CPU_SUPPORTS_CPUFREQ 1938 1939config CPU_BMIPS32_3300 1940 select SMP_UP if SMP 1941 bool 1942 1943config CPU_BMIPS4350 1944 bool 1945 select SYS_SUPPORTS_SMP 1946 select SYS_SUPPORTS_HOTPLUG_CPU 1947 1948config CPU_BMIPS4380 1949 bool 1950 select MIPS_L1_CACHE_SHIFT_6 1951 select SYS_SUPPORTS_SMP 1952 select SYS_SUPPORTS_HOTPLUG_CPU 1953 select CPU_HAS_RIXI 1954 1955config CPU_BMIPS5000 1956 bool 1957 select MIPS_CPU_SCACHE 1958 select MIPS_L1_CACHE_SHIFT_7 1959 select SYS_SUPPORTS_SMP 1960 select SYS_SUPPORTS_HOTPLUG_CPU 1961 select CPU_HAS_RIXI 1962 1963config SYS_HAS_CPU_LOONGSON64 1964 bool 1965 select CPU_SUPPORTS_CPUFREQ 1966 select CPU_HAS_RIXI 1967 1968config SYS_HAS_CPU_LOONGSON2E 1969 bool 1970 1971config SYS_HAS_CPU_LOONGSON2F 1972 bool 1973 select CPU_SUPPORTS_CPUFREQ 1974 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1975 1976config SYS_HAS_CPU_LOONGSON1B 1977 bool 1978 1979config SYS_HAS_CPU_LOONGSON1C 1980 bool 1981 1982config SYS_HAS_CPU_MIPS32_R1 1983 bool 1984 1985config SYS_HAS_CPU_MIPS32_R2 1986 bool 1987 1988config SYS_HAS_CPU_MIPS32_R3_5 1989 bool 1990 1991config SYS_HAS_CPU_MIPS32_R5 1992 bool 1993 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1994 1995config SYS_HAS_CPU_MIPS32_R6 1996 bool 1997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1998 1999config SYS_HAS_CPU_MIPS64_R1 2000 bool 2001 2002config SYS_HAS_CPU_MIPS64_R2 2003 bool 2004 2005config SYS_HAS_CPU_MIPS64_R6 2006 bool 2007 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2008 2009config SYS_HAS_CPU_P5600 2010 bool 2011 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2012 2013config SYS_HAS_CPU_R3000 2014 bool 2015 2016config SYS_HAS_CPU_TX39XX 2017 bool 2018 2019config SYS_HAS_CPU_VR41XX 2020 bool 2021 2022config SYS_HAS_CPU_R4X00 2023 bool 2024 2025config SYS_HAS_CPU_TX49XX 2026 bool 2027 2028config SYS_HAS_CPU_R5000 2029 bool 2030 2031config SYS_HAS_CPU_R5500 2032 bool 2033 2034config SYS_HAS_CPU_NEVADA 2035 bool 2036 2037config SYS_HAS_CPU_R10000 2038 bool 2039 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2040 2041config SYS_HAS_CPU_RM7000 2042 bool 2043 2044config SYS_HAS_CPU_SB1 2045 bool 2046 2047config SYS_HAS_CPU_CAVIUM_OCTEON 2048 bool 2049 2050config SYS_HAS_CPU_BMIPS 2051 bool 2052 2053config SYS_HAS_CPU_BMIPS32_3300 2054 bool 2055 select SYS_HAS_CPU_BMIPS 2056 2057config SYS_HAS_CPU_BMIPS4350 2058 bool 2059 select SYS_HAS_CPU_BMIPS 2060 2061config SYS_HAS_CPU_BMIPS4380 2062 bool 2063 select SYS_HAS_CPU_BMIPS 2064 2065config SYS_HAS_CPU_BMIPS5000 2066 bool 2067 select SYS_HAS_CPU_BMIPS 2068 select ARCH_HAS_SYNC_DMA_FOR_CPU 2069 2070config SYS_HAS_CPU_XLR 2071 bool 2072 2073config SYS_HAS_CPU_XLP 2074 bool 2075 2076# 2077# CPU may reorder R->R, R->W, W->R, W->W 2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2079# 2080config WEAK_ORDERING 2081 bool 2082 2083# 2084# CPU may reorder reads and writes beyond LL/SC 2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2086# 2087config WEAK_REORDERING_BEYOND_LLSC 2088 bool 2089endmenu 2090 2091# 2092# These two indicate any level of the MIPS32 and MIPS64 architecture 2093# 2094config CPU_MIPS32 2095 bool 2096 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2097 CPU_MIPS32_R6 || CPU_P5600 2098 2099config CPU_MIPS64 2100 bool 2101 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2102 CPU_MIPS64_R6 2103 2104# 2105# These indicate the revision of the architecture 2106# 2107config CPU_MIPSR1 2108 bool 2109 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2110 2111config CPU_MIPSR2 2112 bool 2113 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2114 select CPU_HAS_RIXI 2115 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2116 select MIPS_SPRAM 2117 2118config CPU_MIPSR5 2119 bool 2120 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2121 select CPU_HAS_RIXI 2122 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2123 select MIPS_SPRAM 2124 2125config CPU_MIPSR6 2126 bool 2127 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2128 select CPU_HAS_RIXI 2129 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2130 select HAVE_ARCH_BITREVERSE 2131 select MIPS_ASID_BITS_VARIABLE 2132 select MIPS_CRC_SUPPORT 2133 select MIPS_SPRAM 2134 2135config TARGET_ISA_REV 2136 int 2137 default 1 if CPU_MIPSR1 2138 default 2 if CPU_MIPSR2 2139 default 5 if CPU_MIPSR5 2140 default 6 if CPU_MIPSR6 2141 default 0 2142 help 2143 Reflects the ISA revision being targeted by the kernel build. This 2144 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2145 2146config EVA 2147 bool 2148 2149config XPA 2150 bool 2151 2152config SYS_SUPPORTS_32BIT_KERNEL 2153 bool 2154config SYS_SUPPORTS_64BIT_KERNEL 2155 bool 2156config CPU_SUPPORTS_32BIT_KERNEL 2157 bool 2158config CPU_SUPPORTS_64BIT_KERNEL 2159 bool 2160config CPU_SUPPORTS_CPUFREQ 2161 bool 2162config CPU_SUPPORTS_ADDRWINCFG 2163 bool 2164config CPU_SUPPORTS_HUGEPAGES 2165 bool 2166 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2167config MIPS_PGD_C0_CONTEXT 2168 bool 2169 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2170 2171# 2172# Set to y for ptrace access to watch registers. 2173# 2174config HARDWARE_WATCHPOINTS 2175 bool 2176 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2177 2178menu "Kernel type" 2179 2180choice 2181 prompt "Kernel code model" 2182 help 2183 You should only select this option if you have a workload that 2184 actually benefits from 64-bit processing or if your machine has 2185 large memory. You will only be presented a single option in this 2186 menu if your system does not support both 32-bit and 64-bit kernels. 2187 2188config 32BIT 2189 bool "32-bit kernel" 2190 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2191 select TRAD_SIGNALS 2192 help 2193 Select this option if you want to build a 32-bit kernel. 2194 2195config 64BIT 2196 bool "64-bit kernel" 2197 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2198 help 2199 Select this option if you want to build a 64-bit kernel. 2200 2201endchoice 2202 2203config KVM_GUEST 2204 bool "KVM Guest Kernel" 2205 depends on BROKEN_ON_SMP 2206 help 2207 Select this option if building a guest kernel for KVM (Trap & Emulate) 2208 mode. 2209 2210config KVM_GUEST_TIMER_FREQ 2211 int "Count/Compare Timer Frequency (MHz)" 2212 depends on KVM_GUEST 2213 default 100 2214 help 2215 Set this to non-zero if building a guest kernel for KVM to skip RTC 2216 emulation when determining guest CPU Frequency. Instead, the guest's 2217 timer frequency is specified directly. 2218 2219config MIPS_VA_BITS_48 2220 bool "48 bits virtual memory" 2221 depends on 64BIT 2222 help 2223 Support a maximum at least 48 bits of application virtual 2224 memory. Default is 40 bits or less, depending on the CPU. 2225 For page sizes 16k and above, this option results in a small 2226 memory overhead for page tables. For 4k page size, a fourth 2227 level of page tables is added which imposes both a memory 2228 overhead as well as slower TLB fault handling. 2229 2230 If unsure, say N. 2231 2232choice 2233 prompt "Kernel page size" 2234 default PAGE_SIZE_4KB 2235 2236config PAGE_SIZE_4KB 2237 bool "4kB" 2238 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2239 help 2240 This option select the standard 4kB Linux page size. On some 2241 R3000-family processors this is the only available page size. Using 2242 4kB page size will minimize memory consumption and is therefore 2243 recommended for low memory systems. 2244 2245config PAGE_SIZE_8KB 2246 bool "8kB" 2247 depends on CPU_CAVIUM_OCTEON 2248 depends on !MIPS_VA_BITS_48 2249 help 2250 Using 8kB page size will result in higher performance kernel at 2251 the price of higher memory consumption. This option is available 2252 only on cnMIPS processors. Note that you will need a suitable Linux 2253 distribution to support this. 2254 2255config PAGE_SIZE_16KB 2256 bool "16kB" 2257 depends on !CPU_R3000 && !CPU_TX39XX 2258 help 2259 Using 16kB page size will result in higher performance kernel at 2260 the price of higher memory consumption. This option is available on 2261 all non-R3000 family processors. Note that you will need a suitable 2262 Linux distribution to support this. 2263 2264config PAGE_SIZE_32KB 2265 bool "32kB" 2266 depends on CPU_CAVIUM_OCTEON 2267 depends on !MIPS_VA_BITS_48 2268 help 2269 Using 32kB page size will result in higher performance kernel at 2270 the price of higher memory consumption. This option is available 2271 only on cnMIPS cores. Note that you will need a suitable Linux 2272 distribution to support this. 2273 2274config PAGE_SIZE_64KB 2275 bool "64kB" 2276 depends on !CPU_R3000 && !CPU_TX39XX 2277 help 2278 Using 64kB page size will result in higher performance kernel at 2279 the price of higher memory consumption. This option is available on 2280 all non-R3000 family processor. Not that at the time of this 2281 writing this option is still high experimental. 2282 2283endchoice 2284 2285config FORCE_MAX_ZONEORDER 2286 int "Maximum zone order" 2287 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2288 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2289 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2290 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2291 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2292 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2293 range 11 64 2294 default "11" 2295 help 2296 The kernel memory allocator divides physically contiguous memory 2297 blocks into "zones", where each zone is a power of two number of 2298 pages. This option selects the largest power of two that the kernel 2299 keeps in the memory allocator. If you need to allocate very large 2300 blocks of physically contiguous memory, then you may need to 2301 increase this value. 2302 2303 This config option is actually maximum order plus one. For example, 2304 a value of 11 means that the largest free memory block is 2^10 pages. 2305 2306 The page size is not necessarily 4KB. Keep this in mind 2307 when choosing a value for this option. 2308 2309config BOARD_SCACHE 2310 bool 2311 2312config IP22_CPU_SCACHE 2313 bool 2314 select BOARD_SCACHE 2315 2316# 2317# Support for a MIPS32 / MIPS64 style S-caches 2318# 2319config MIPS_CPU_SCACHE 2320 bool 2321 select BOARD_SCACHE 2322 2323config R5000_CPU_SCACHE 2324 bool 2325 select BOARD_SCACHE 2326 2327config RM7000_CPU_SCACHE 2328 bool 2329 select BOARD_SCACHE 2330 2331config SIBYTE_DMA_PAGEOPS 2332 bool "Use DMA to clear/copy pages" 2333 depends on CPU_SB1 2334 help 2335 Instead of using the CPU to zero and copy pages, use a Data Mover 2336 channel. These DMA channels are otherwise unused by the standard 2337 SiByte Linux port. Seems to give a small performance benefit. 2338 2339config CPU_HAS_PREFETCH 2340 bool 2341 2342config CPU_GENERIC_DUMP_TLB 2343 bool 2344 default y if !(CPU_R3000 || CPU_TX39XX) 2345 2346config MIPS_FP_SUPPORT 2347 bool "Floating Point support" if EXPERT 2348 default y 2349 help 2350 Select y to include support for floating point in the kernel 2351 including initialization of FPU hardware, FP context save & restore 2352 and emulation of an FPU where necessary. Without this support any 2353 userland program attempting to use floating point instructions will 2354 receive a SIGILL. 2355 2356 If you know that your userland will not attempt to use floating point 2357 instructions then you can say n here to shrink the kernel a little. 2358 2359 If unsure, say y. 2360 2361config CPU_R2300_FPU 2362 bool 2363 depends on MIPS_FP_SUPPORT 2364 default y if CPU_R3000 || CPU_TX39XX 2365 2366config CPU_R3K_TLB 2367 bool 2368 2369config CPU_R4K_FPU 2370 bool 2371 depends on MIPS_FP_SUPPORT 2372 default y if !CPU_R2300_FPU 2373 2374config CPU_R4K_CACHE_TLB 2375 bool 2376 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2377 2378config MIPS_MT_SMP 2379 bool "MIPS MT SMP support (1 TC on each available VPE)" 2380 default y 2381 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2382 select CPU_MIPSR2_IRQ_VI 2383 select CPU_MIPSR2_IRQ_EI 2384 select SYNC_R4K 2385 select MIPS_MT 2386 select SMP 2387 select SMP_UP 2388 select SYS_SUPPORTS_SMP 2389 select SYS_SUPPORTS_SCHED_SMT 2390 select MIPS_PERF_SHARED_TC_COUNTERS 2391 help 2392 This is a kernel model which is known as SMVP. This is supported 2393 on cores with the MT ASE and uses the available VPEs to implement 2394 virtual processors which supports SMP. This is equivalent to the 2395 Intel Hyperthreading feature. For further information go to 2396 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2397 2398config MIPS_MT 2399 bool 2400 2401config SCHED_SMT 2402 bool "SMT (multithreading) scheduler support" 2403 depends on SYS_SUPPORTS_SCHED_SMT 2404 default n 2405 help 2406 SMT scheduler support improves the CPU scheduler's decision making 2407 when dealing with MIPS MT enabled cores at a cost of slightly 2408 increased overhead in some places. If unsure say N here. 2409 2410config SYS_SUPPORTS_SCHED_SMT 2411 bool 2412 2413config SYS_SUPPORTS_MULTITHREADING 2414 bool 2415 2416config MIPS_MT_FPAFF 2417 bool "Dynamic FPU affinity for FP-intensive threads" 2418 default y 2419 depends on MIPS_MT_SMP 2420 2421config MIPSR2_TO_R6_EMULATOR 2422 bool "MIPS R2-to-R6 emulator" 2423 depends on CPU_MIPSR6 2424 depends on MIPS_FP_SUPPORT 2425 default y 2426 help 2427 Choose this option if you want to run non-R6 MIPS userland code. 2428 Even if you say 'Y' here, the emulator will still be disabled by 2429 default. You can enable it using the 'mipsr2emu' kernel option. 2430 The only reason this is a build-time option is to save ~14K from the 2431 final kernel image. 2432 2433config SYS_SUPPORTS_VPE_LOADER 2434 bool 2435 depends on SYS_SUPPORTS_MULTITHREADING 2436 help 2437 Indicates that the platform supports the VPE loader, and provides 2438 physical_memsize. 2439 2440config MIPS_VPE_LOADER 2441 bool "VPE loader support." 2442 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2443 select CPU_MIPSR2_IRQ_VI 2444 select CPU_MIPSR2_IRQ_EI 2445 select MIPS_MT 2446 help 2447 Includes a loader for loading an elf relocatable object 2448 onto another VPE and running it. 2449 2450config MIPS_VPE_LOADER_CMP 2451 bool 2452 default "y" 2453 depends on MIPS_VPE_LOADER && MIPS_CMP 2454 2455config MIPS_VPE_LOADER_MT 2456 bool 2457 default "y" 2458 depends on MIPS_VPE_LOADER && !MIPS_CMP 2459 2460config MIPS_VPE_LOADER_TOM 2461 bool "Load VPE program into memory hidden from linux" 2462 depends on MIPS_VPE_LOADER 2463 default y 2464 help 2465 The loader can use memory that is present but has been hidden from 2466 Linux using the kernel command line option "mem=xxMB". It's up to 2467 you to ensure the amount you put in the option and the space your 2468 program requires is less or equal to the amount physically present. 2469 2470config MIPS_VPE_APSP_API 2471 bool "Enable support for AP/SP API (RTLX)" 2472 depends on MIPS_VPE_LOADER 2473 2474config MIPS_VPE_APSP_API_CMP 2475 bool 2476 default "y" 2477 depends on MIPS_VPE_APSP_API && MIPS_CMP 2478 2479config MIPS_VPE_APSP_API_MT 2480 bool 2481 default "y" 2482 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2483 2484config MIPS_CMP 2485 bool "MIPS CMP framework support (DEPRECATED)" 2486 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2487 select SMP 2488 select SYNC_R4K 2489 select SYS_SUPPORTS_SMP 2490 select WEAK_ORDERING 2491 default n 2492 help 2493 Select this if you are using a bootloader which implements the "CMP 2494 framework" protocol (ie. YAMON) and want your kernel to make use of 2495 its ability to start secondary CPUs. 2496 2497 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2498 instead of this. 2499 2500config MIPS_CPS 2501 bool "MIPS Coherent Processing System support" 2502 depends on SYS_SUPPORTS_MIPS_CPS 2503 select MIPS_CM 2504 select MIPS_CPS_PM if HOTPLUG_CPU 2505 select SMP 2506 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2507 select SYS_SUPPORTS_HOTPLUG_CPU 2508 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2509 select SYS_SUPPORTS_SMP 2510 select WEAK_ORDERING 2511 help 2512 Select this if you wish to run an SMP kernel across multiple cores 2513 within a MIPS Coherent Processing System. When this option is 2514 enabled the kernel will probe for other cores and boot them with 2515 no external assistance. It is safe to enable this when hardware 2516 support is unavailable. 2517 2518config MIPS_CPS_PM 2519 depends on MIPS_CPS 2520 bool 2521 2522config MIPS_CM 2523 bool 2524 select MIPS_CPC 2525 2526config MIPS_CPC 2527 bool 2528 2529config SB1_PASS_2_WORKAROUNDS 2530 bool 2531 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2532 default y 2533 2534config SB1_PASS_2_1_WORKAROUNDS 2535 bool 2536 depends on CPU_SB1 && CPU_SB1_PASS_2 2537 default y 2538 2539choice 2540 prompt "SmartMIPS or microMIPS ASE support" 2541 2542config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2543 bool "None" 2544 help 2545 Select this if you want neither microMIPS nor SmartMIPS support 2546 2547config CPU_HAS_SMARTMIPS 2548 depends on SYS_SUPPORTS_SMARTMIPS 2549 bool "SmartMIPS" 2550 help 2551 SmartMIPS is a extension of the MIPS32 architecture aimed at 2552 increased security at both hardware and software level for 2553 smartcards. Enabling this option will allow proper use of the 2554 SmartMIPS instructions by Linux applications. However a kernel with 2555 this option will not work on a MIPS core without SmartMIPS core. If 2556 you don't know you probably don't have SmartMIPS and should say N 2557 here. 2558 2559config CPU_MICROMIPS 2560 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2561 bool "microMIPS" 2562 help 2563 When this option is enabled the kernel will be built using the 2564 microMIPS ISA 2565 2566endchoice 2567 2568config CPU_HAS_MSA 2569 bool "Support for the MIPS SIMD Architecture" 2570 depends on CPU_SUPPORTS_MSA 2571 depends on MIPS_FP_SUPPORT 2572 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2573 help 2574 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2575 and a set of SIMD instructions to operate on them. When this option 2576 is enabled the kernel will support allocating & switching MSA 2577 vector register contexts. If you know that your kernel will only be 2578 running on CPUs which do not support MSA or that your userland will 2579 not be making use of it then you may wish to say N here to reduce 2580 the size & complexity of your kernel. 2581 2582 If unsure, say Y. 2583 2584config CPU_HAS_WB 2585 bool 2586 2587config XKS01 2588 bool 2589 2590config CPU_HAS_DIEI 2591 depends on !CPU_DIEI_BROKEN 2592 bool 2593 2594config CPU_DIEI_BROKEN 2595 bool 2596 2597config CPU_HAS_RIXI 2598 bool 2599 2600config CPU_NO_LOAD_STORE_LR 2601 bool 2602 help 2603 CPU lacks support for unaligned load and store instructions: 2604 LWL, LWR, SWL, SWR (Load/store word left/right). 2605 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2606 systems). 2607 2608# 2609# Vectored interrupt mode is an R2 feature 2610# 2611config CPU_MIPSR2_IRQ_VI 2612 bool 2613 2614# 2615# Extended interrupt mode is an R2 feature 2616# 2617config CPU_MIPSR2_IRQ_EI 2618 bool 2619 2620config CPU_HAS_SYNC 2621 bool 2622 depends on !CPU_R3000 2623 default y 2624 2625# 2626# CPU non-features 2627# 2628config CPU_DADDI_WORKAROUNDS 2629 bool 2630 2631config CPU_R4000_WORKAROUNDS 2632 bool 2633 select CPU_R4400_WORKAROUNDS 2634 2635config CPU_R4400_WORKAROUNDS 2636 bool 2637 2638config CPU_R4X00_BUGS64 2639 bool 2640 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2641 2642config MIPS_ASID_SHIFT 2643 int 2644 default 6 if CPU_R3000 || CPU_TX39XX 2645 default 0 2646 2647config MIPS_ASID_BITS 2648 int 2649 default 0 if MIPS_ASID_BITS_VARIABLE 2650 default 6 if CPU_R3000 || CPU_TX39XX 2651 default 8 2652 2653config MIPS_ASID_BITS_VARIABLE 2654 bool 2655 2656config MIPS_CRC_SUPPORT 2657 bool 2658 2659# 2660# - Highmem only makes sense for the 32-bit kernel. 2661# - The current highmem code will only work properly on physically indexed 2662# caches such as R3000, SB1, R7000 or those that look like they're virtually 2663# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2664# moment we protect the user and offer the highmem option only on machines 2665# where it's known to be safe. This will not offer highmem on a few systems 2666# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2667# indexed CPUs but we're playing safe. 2668# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2669# know they might have memory configurations that could make use of highmem 2670# support. 2671# 2672config HIGHMEM 2673 bool "High Memory Support" 2674 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2675 2676config CPU_SUPPORTS_HIGHMEM 2677 bool 2678 2679config SYS_SUPPORTS_HIGHMEM 2680 bool 2681 2682config SYS_SUPPORTS_SMARTMIPS 2683 bool 2684 2685config SYS_SUPPORTS_MICROMIPS 2686 bool 2687 2688config SYS_SUPPORTS_MIPS16 2689 bool 2690 help 2691 This option must be set if a kernel might be executed on a MIPS16- 2692 enabled CPU even if MIPS16 is not actually being used. In other 2693 words, it makes the kernel MIPS16-tolerant. 2694 2695config CPU_SUPPORTS_MSA 2696 bool 2697 2698config ARCH_FLATMEM_ENABLE 2699 def_bool y 2700 depends on !NUMA && !CPU_LOONGSON2EF 2701 2702config ARCH_SPARSEMEM_ENABLE 2703 bool 2704 select SPARSEMEM_STATIC if !SGI_IP27 2705 2706config NUMA 2707 bool "NUMA Support" 2708 depends on SYS_SUPPORTS_NUMA 2709 help 2710 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2711 Access). This option improves performance on systems with more 2712 than two nodes; on two node systems it is generally better to 2713 leave it disabled; on single node systems leave this option 2714 disabled. 2715 2716config SYS_SUPPORTS_NUMA 2717 bool 2718 2719config HAVE_SETUP_PER_CPU_AREA 2720 def_bool y 2721 depends on NUMA 2722 2723config NEED_PER_CPU_EMBED_FIRST_CHUNK 2724 def_bool y 2725 depends on NUMA 2726 2727config RELOCATABLE 2728 bool "Relocatable kernel" 2729 depends on SYS_SUPPORTS_RELOCATABLE 2730 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2731 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2732 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2733 CPU_P5600 || CAVIUM_OCTEON_SOC 2734 help 2735 This builds a kernel image that retains relocation information 2736 so it can be loaded someplace besides the default 1MB. 2737 The relocations make the kernel binary about 15% larger, 2738 but are discarded at runtime 2739 2740config RELOCATION_TABLE_SIZE 2741 hex "Relocation table size" 2742 depends on RELOCATABLE 2743 range 0x0 0x01000000 2744 default "0x00100000" 2745 help 2746 A table of relocation data will be appended to the kernel binary 2747 and parsed at boot to fix up the relocated kernel. 2748 2749 This option allows the amount of space reserved for the table to be 2750 adjusted, although the default of 1Mb should be ok in most cases. 2751 2752 The build will fail and a valid size suggested if this is too small. 2753 2754 If unsure, leave at the default value. 2755 2756config RANDOMIZE_BASE 2757 bool "Randomize the address of the kernel image" 2758 depends on RELOCATABLE 2759 help 2760 Randomizes the physical and virtual address at which the 2761 kernel image is loaded, as a security feature that 2762 deters exploit attempts relying on knowledge of the location 2763 of kernel internals. 2764 2765 Entropy is generated using any coprocessor 0 registers available. 2766 2767 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2768 2769 If unsure, say N. 2770 2771config RANDOMIZE_BASE_MAX_OFFSET 2772 hex "Maximum kASLR offset" if EXPERT 2773 depends on RANDOMIZE_BASE 2774 range 0x0 0x40000000 if EVA || 64BIT 2775 range 0x0 0x08000000 2776 default "0x01000000" 2777 help 2778 When kASLR is active, this provides the maximum offset that will 2779 be applied to the kernel image. It should be set according to the 2780 amount of physical RAM available in the target system minus 2781 PHYSICAL_START and must be a power of 2. 2782 2783 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2784 EVA or 64-bit. The default is 16Mb. 2785 2786config NODES_SHIFT 2787 int 2788 default "6" 2789 depends on NEED_MULTIPLE_NODES 2790 2791config HW_PERF_EVENTS 2792 bool "Enable hardware performance counter support for perf events" 2793 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2794 default y 2795 help 2796 Enable hardware performance counter support for perf events. If 2797 disabled, perf events will use software events only. 2798 2799config DMI 2800 bool "Enable DMI scanning" 2801 depends on MACH_LOONGSON64 2802 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2803 default y 2804 help 2805 Enabled scanning of DMI to identify machine quirks. Say Y 2806 here unless you have verified that your setup is not 2807 affected by entries in the DMI blacklist. Required by PNP 2808 BIOS code. 2809 2810config SMP 2811 bool "Multi-Processing support" 2812 depends on SYS_SUPPORTS_SMP 2813 help 2814 This enables support for systems with more than one CPU. If you have 2815 a system with only one CPU, say N. If you have a system with more 2816 than one CPU, say Y. 2817 2818 If you say N here, the kernel will run on uni- and multiprocessor 2819 machines, but will use only one CPU of a multiprocessor machine. If 2820 you say Y here, the kernel will run on many, but not all, 2821 uniprocessor machines. On a uniprocessor machine, the kernel 2822 will run faster if you say N here. 2823 2824 People using multiprocessor machines who say Y here should also say 2825 Y to "Enhanced Real Time Clock Support", below. 2826 2827 See also the SMP-HOWTO available at 2828 <http://www.tldp.org/docs.html#howto>. 2829 2830 If you don't know what to do here, say N. 2831 2832config HOTPLUG_CPU 2833 bool "Support for hot-pluggable CPUs" 2834 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2835 help 2836 Say Y here to allow turning CPUs off and on. CPUs can be 2837 controlled through /sys/devices/system/cpu. 2838 (Note: power management support will enable this option 2839 automatically on SMP systems. ) 2840 Say N if you want to disable CPU hotplug. 2841 2842config SMP_UP 2843 bool 2844 2845config SYS_SUPPORTS_MIPS_CMP 2846 bool 2847 2848config SYS_SUPPORTS_MIPS_CPS 2849 bool 2850 2851config SYS_SUPPORTS_SMP 2852 bool 2853 2854config NR_CPUS_DEFAULT_4 2855 bool 2856 2857config NR_CPUS_DEFAULT_8 2858 bool 2859 2860config NR_CPUS_DEFAULT_16 2861 bool 2862 2863config NR_CPUS_DEFAULT_32 2864 bool 2865 2866config NR_CPUS_DEFAULT_64 2867 bool 2868 2869config NR_CPUS 2870 int "Maximum number of CPUs (2-256)" 2871 range 2 256 2872 depends on SMP 2873 default "4" if NR_CPUS_DEFAULT_4 2874 default "8" if NR_CPUS_DEFAULT_8 2875 default "16" if NR_CPUS_DEFAULT_16 2876 default "32" if NR_CPUS_DEFAULT_32 2877 default "64" if NR_CPUS_DEFAULT_64 2878 help 2879 This allows you to specify the maximum number of CPUs which this 2880 kernel will support. The maximum supported value is 32 for 32-bit 2881 kernel and 64 for 64-bit kernels; the minimum value which makes 2882 sense is 1 for Qemu (useful only for kernel debugging purposes) 2883 and 2 for all others. 2884 2885 This is purely to save memory - each supported CPU adds 2886 approximately eight kilobytes to the kernel image. For best 2887 performance should round up your number of processors to the next 2888 power of two. 2889 2890config MIPS_PERF_SHARED_TC_COUNTERS 2891 bool 2892 2893config MIPS_NR_CPU_NR_MAP_1024 2894 bool 2895 2896config MIPS_NR_CPU_NR_MAP 2897 int 2898 depends on SMP 2899 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2900 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2901 2902# 2903# Timer Interrupt Frequency Configuration 2904# 2905 2906choice 2907 prompt "Timer frequency" 2908 default HZ_250 2909 help 2910 Allows the configuration of the timer frequency. 2911 2912 config HZ_24 2913 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2914 2915 config HZ_48 2916 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2917 2918 config HZ_100 2919 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2920 2921 config HZ_128 2922 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2923 2924 config HZ_250 2925 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2926 2927 config HZ_256 2928 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2929 2930 config HZ_1000 2931 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2932 2933 config HZ_1024 2934 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2935 2936endchoice 2937 2938config SYS_SUPPORTS_24HZ 2939 bool 2940 2941config SYS_SUPPORTS_48HZ 2942 bool 2943 2944config SYS_SUPPORTS_100HZ 2945 bool 2946 2947config SYS_SUPPORTS_128HZ 2948 bool 2949 2950config SYS_SUPPORTS_250HZ 2951 bool 2952 2953config SYS_SUPPORTS_256HZ 2954 bool 2955 2956config SYS_SUPPORTS_1000HZ 2957 bool 2958 2959config SYS_SUPPORTS_1024HZ 2960 bool 2961 2962config SYS_SUPPORTS_ARBIT_HZ 2963 bool 2964 default y if !SYS_SUPPORTS_24HZ && \ 2965 !SYS_SUPPORTS_48HZ && \ 2966 !SYS_SUPPORTS_100HZ && \ 2967 !SYS_SUPPORTS_128HZ && \ 2968 !SYS_SUPPORTS_250HZ && \ 2969 !SYS_SUPPORTS_256HZ && \ 2970 !SYS_SUPPORTS_1000HZ && \ 2971 !SYS_SUPPORTS_1024HZ 2972 2973config HZ 2974 int 2975 default 24 if HZ_24 2976 default 48 if HZ_48 2977 default 100 if HZ_100 2978 default 128 if HZ_128 2979 default 250 if HZ_250 2980 default 256 if HZ_256 2981 default 1000 if HZ_1000 2982 default 1024 if HZ_1024 2983 2984config SCHED_HRTICK 2985 def_bool HIGH_RES_TIMERS 2986 2987config KEXEC 2988 bool "Kexec system call" 2989 select KEXEC_CORE 2990 help 2991 kexec is a system call that implements the ability to shutdown your 2992 current kernel, and to start another kernel. It is like a reboot 2993 but it is independent of the system firmware. And like a reboot 2994 you can start any kernel with it, not just Linux. 2995 2996 The name comes from the similarity to the exec system call. 2997 2998 It is an ongoing process to be certain the hardware in a machine 2999 is properly shutdown, so do not be surprised if this code does not 3000 initially work for you. As of this writing the exact hardware 3001 interface is strongly in flux, so no good recommendation can be 3002 made. 3003 3004config CRASH_DUMP 3005 bool "Kernel crash dumps" 3006 help 3007 Generate crash dump after being started by kexec. 3008 This should be normally only set in special crash dump kernels 3009 which are loaded in the main kernel with kexec-tools into 3010 a specially reserved region and then later executed after 3011 a crash by kdump/kexec. The crash dump kernel must be compiled 3012 to a memory address not used by the main kernel or firmware using 3013 PHYSICAL_START. 3014 3015config PHYSICAL_START 3016 hex "Physical address where the kernel is loaded" 3017 default "0xffffffff84000000" 3018 depends on CRASH_DUMP 3019 help 3020 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3021 If you plan to use kernel for capturing the crash dump change 3022 this value to start of the reserved region (the "X" value as 3023 specified in the "crashkernel=YM@XM" command line boot parameter 3024 passed to the panic-ed kernel). 3025 3026config SECCOMP 3027 bool "Enable seccomp to safely compute untrusted bytecode" 3028 depends on PROC_FS 3029 default y 3030 help 3031 This kernel feature is useful for number crunching applications 3032 that may need to compute untrusted bytecode during their 3033 execution. By using pipes or other transports made available to 3034 the process as file descriptors supporting the read/write 3035 syscalls, it's possible to isolate those applications in 3036 their own address space using seccomp. Once seccomp is 3037 enabled via /proc/<pid>/seccomp, it cannot be disabled 3038 and the task is only allowed to execute a few safe syscalls 3039 defined by each seccomp mode. 3040 3041 If unsure, say Y. Only embedded should say N here. 3042 3043config MIPS_O32_FP64_SUPPORT 3044 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3045 depends on 32BIT || MIPS32_O32 3046 help 3047 When this is enabled, the kernel will support use of 64-bit floating 3048 point registers with binaries using the O32 ABI along with the 3049 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3050 32-bit MIPS systems this support is at the cost of increasing the 3051 size and complexity of the compiled FPU emulator. Thus if you are 3052 running a MIPS32 system and know that none of your userland binaries 3053 will require 64-bit floating point, you may wish to reduce the size 3054 of your kernel & potentially improve FP emulation performance by 3055 saying N here. 3056 3057 Although binutils currently supports use of this flag the details 3058 concerning its effect upon the O32 ABI in userland are still being 3059 worked on. In order to avoid userland becoming dependant upon current 3060 behaviour before the details have been finalised, this option should 3061 be considered experimental and only enabled by those working upon 3062 said details. 3063 3064 If unsure, say N. 3065 3066config USE_OF 3067 bool 3068 select OF 3069 select OF_EARLY_FLATTREE 3070 select IRQ_DOMAIN 3071 3072config UHI_BOOT 3073 bool 3074 3075config BUILTIN_DTB 3076 bool 3077 3078choice 3079 prompt "Kernel appended dtb support" if USE_OF 3080 default MIPS_NO_APPENDED_DTB 3081 3082 config MIPS_NO_APPENDED_DTB 3083 bool "None" 3084 help 3085 Do not enable appended dtb support. 3086 3087 config MIPS_ELF_APPENDED_DTB 3088 bool "vmlinux" 3089 help 3090 With this option, the boot code will look for a device tree binary 3091 DTB) included in the vmlinux ELF section .appended_dtb. By default 3092 it is empty and the DTB can be appended using binutils command 3093 objcopy: 3094 3095 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3096 3097 This is meant as a backward compatiblity convenience for those 3098 systems with a bootloader that can't be upgraded to accommodate 3099 the documented boot protocol using a device tree. 3100 3101 config MIPS_RAW_APPENDED_DTB 3102 bool "vmlinux.bin or vmlinuz.bin" 3103 help 3104 With this option, the boot code will look for a device tree binary 3105 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3106 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3107 3108 This is meant as a backward compatibility convenience for those 3109 systems with a bootloader that can't be upgraded to accommodate 3110 the documented boot protocol using a device tree. 3111 3112 Beware that there is very little in terms of protection against 3113 this option being confused by leftover garbage in memory that might 3114 look like a DTB header after a reboot if no actual DTB is appended 3115 to vmlinux.bin. Do not leave this option active in a production kernel 3116 if you don't intend to always append a DTB. 3117endchoice 3118 3119choice 3120 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3121 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3122 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3123 !CAVIUM_OCTEON_SOC 3124 default MIPS_CMDLINE_FROM_BOOTLOADER 3125 3126 config MIPS_CMDLINE_FROM_DTB 3127 depends on USE_OF 3128 bool "Dtb kernel arguments if available" 3129 3130 config MIPS_CMDLINE_DTB_EXTEND 3131 depends on USE_OF 3132 bool "Extend dtb kernel arguments with bootloader arguments" 3133 3134 config MIPS_CMDLINE_FROM_BOOTLOADER 3135 bool "Bootloader kernel arguments if available" 3136 3137 config MIPS_CMDLINE_BUILTIN_EXTEND 3138 depends on CMDLINE_BOOL 3139 bool "Extend builtin kernel arguments with bootloader arguments" 3140endchoice 3141 3142endmenu 3143 3144config LOCKDEP_SUPPORT 3145 bool 3146 default y 3147 3148config STACKTRACE_SUPPORT 3149 bool 3150 default y 3151 3152config PGTABLE_LEVELS 3153 int 3154 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3155 default 3 if 64BIT && !PAGE_SIZE_64KB 3156 default 2 3157 3158config MIPS_AUTO_PFN_OFFSET 3159 bool 3160 3161menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3162 3163config PCI_DRIVERS_GENERIC 3164 select PCI_DOMAINS_GENERIC if PCI 3165 bool 3166 3167config PCI_DRIVERS_LEGACY 3168 def_bool !PCI_DRIVERS_GENERIC 3169 select NO_GENERIC_PCI_IOPORT_MAP 3170 select PCI_DOMAINS if PCI 3171 3172# 3173# ISA support is now enabled via select. Too many systems still have the one 3174# or other ISA chip on the board that users don't know about so don't expect 3175# users to choose the right thing ... 3176# 3177config ISA 3178 bool 3179 3180config TC 3181 bool "TURBOchannel support" 3182 depends on MACH_DECSTATION 3183 help 3184 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3185 processors. TURBOchannel programming specifications are available 3186 at: 3187 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3188 and: 3189 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3190 Linux driver support status is documented at: 3191 <http://www.linux-mips.org/wiki/DECstation> 3192 3193config MMU 3194 bool 3195 default y 3196 3197config ARCH_MMAP_RND_BITS_MIN 3198 default 12 if 64BIT 3199 default 8 3200 3201config ARCH_MMAP_RND_BITS_MAX 3202 default 18 if 64BIT 3203 default 15 3204 3205config ARCH_MMAP_RND_COMPAT_BITS_MIN 3206 default 8 3207 3208config ARCH_MMAP_RND_COMPAT_BITS_MAX 3209 default 15 3210 3211config I8253 3212 bool 3213 select CLKSRC_I8253 3214 select CLKEVT_I8253 3215 select MIPS_EXTERNAL_TIMER 3216 3217config ZONE_DMA 3218 bool 3219 3220config ZONE_DMA32 3221 bool 3222 3223endmenu 3224 3225config TRAD_SIGNALS 3226 bool 3227 3228config MIPS32_COMPAT 3229 bool 3230 3231config COMPAT 3232 bool 3233 3234config SYSVIPC_COMPAT 3235 bool 3236 3237config MIPS32_O32 3238 bool "Kernel support for o32 binaries" 3239 depends on 64BIT 3240 select ARCH_WANT_OLD_COMPAT_IPC 3241 select COMPAT 3242 select MIPS32_COMPAT 3243 select SYSVIPC_COMPAT if SYSVIPC 3244 help 3245 Select this option if you want to run o32 binaries. These are pure 3246 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3247 existing binaries are in this format. 3248 3249 If unsure, say Y. 3250 3251config MIPS32_N32 3252 bool "Kernel support for n32 binaries" 3253 depends on 64BIT 3254 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3255 select COMPAT 3256 select MIPS32_COMPAT 3257 select SYSVIPC_COMPAT if SYSVIPC 3258 help 3259 Select this option if you want to run n32 binaries. These are 3260 64-bit binaries using 32-bit quantities for addressing and certain 3261 data that would normally be 64-bit. They are used in special 3262 cases. 3263 3264 If unsure, say N. 3265 3266config BINFMT_ELF32 3267 bool 3268 default y if MIPS32_O32 || MIPS32_N32 3269 select ELFCORE 3270 3271menu "Power management options" 3272 3273config ARCH_HIBERNATION_POSSIBLE 3274 def_bool y 3275 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3276 3277config ARCH_SUSPEND_POSSIBLE 3278 def_bool y 3279 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3280 3281source "kernel/power/Kconfig" 3282 3283endmenu 3284 3285config MIPS_EXTERNAL_TIMER 3286 bool 3287 3288menu "CPU Power Management" 3289 3290if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3291source "drivers/cpufreq/Kconfig" 3292endif 3293 3294source "drivers/cpuidle/Kconfig" 3295 3296endmenu 3297 3298source "drivers/firmware/Kconfig" 3299 3300source "arch/mips/kvm/Kconfig" 3301 3302source "arch/mips/vdso/Kconfig" 3303