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 1016endchoice 1017 1018source "arch/mips/alchemy/Kconfig" 1019source "arch/mips/ath25/Kconfig" 1020source "arch/mips/ath79/Kconfig" 1021source "arch/mips/bcm47xx/Kconfig" 1022source "arch/mips/bcm63xx/Kconfig" 1023source "arch/mips/bmips/Kconfig" 1024source "arch/mips/generic/Kconfig" 1025source "arch/mips/jazz/Kconfig" 1026source "arch/mips/jz4740/Kconfig" 1027source "arch/mips/lantiq/Kconfig" 1028source "arch/mips/pic32/Kconfig" 1029source "arch/mips/pistachio/Kconfig" 1030source "arch/mips/ralink/Kconfig" 1031source "arch/mips/sgi-ip27/Kconfig" 1032source "arch/mips/sibyte/Kconfig" 1033source "arch/mips/txx9/Kconfig" 1034source "arch/mips/vr41xx/Kconfig" 1035source "arch/mips/cavium-octeon/Kconfig" 1036source "arch/mips/loongson2ef/Kconfig" 1037source "arch/mips/loongson32/Kconfig" 1038source "arch/mips/loongson64/Kconfig" 1039source "arch/mips/netlogic/Kconfig" 1040 1041endmenu 1042 1043config GENERIC_HWEIGHT 1044 bool 1045 default y 1046 1047config GENERIC_CALIBRATE_DELAY 1048 bool 1049 default y 1050 1051config SCHED_OMIT_FRAME_POINTER 1052 bool 1053 default y 1054 1055# 1056# Select some configuration options automatically based on user selections. 1057# 1058config FW_ARC 1059 bool 1060 1061config ARCH_MAY_HAVE_PC_FDC 1062 bool 1063 1064config BOOT_RAW 1065 bool 1066 1067config CEVT_BCM1480 1068 bool 1069 1070config CEVT_DS1287 1071 bool 1072 1073config CEVT_GT641XX 1074 bool 1075 1076config CEVT_R4K 1077 bool 1078 1079config CEVT_SB1250 1080 bool 1081 1082config CEVT_TXX9 1083 bool 1084 1085config CSRC_BCM1480 1086 bool 1087 1088config CSRC_IOASIC 1089 bool 1090 1091config CSRC_R4K 1092 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1093 bool 1094 1095config CSRC_SB1250 1096 bool 1097 1098config MIPS_CLOCK_VSYSCALL 1099 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1100 1101config GPIO_TXX9 1102 select GPIOLIB 1103 bool 1104 1105config FW_CFE 1106 bool 1107 1108config ARCH_SUPPORTS_UPROBES 1109 bool 1110 1111config DMA_MAYBE_COHERENT 1112 select ARCH_HAS_DMA_COHERENCE_H 1113 select DMA_NONCOHERENT 1114 bool 1115 1116config DMA_PERDEV_COHERENT 1117 bool 1118 select ARCH_HAS_SETUP_DMA_OPS 1119 select DMA_NONCOHERENT 1120 1121config DMA_NONCOHERENT 1122 bool 1123 # 1124 # MIPS allows mixing "slightly different" Cacheability and Coherency 1125 # Attribute bits. It is believed that the uncached access through 1126 # KSEG1 and the implementation specific "uncached accelerated" used 1127 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1128 # significant advantages. 1129 # 1130 select ARCH_HAS_DMA_WRITE_COMBINE 1131 select ARCH_HAS_DMA_PREP_COHERENT 1132 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1133 select ARCH_HAS_DMA_SET_UNCACHED 1134 select DMA_NONCOHERENT_MMAP 1135 select DMA_NONCOHERENT_CACHE_SYNC 1136 select NEED_DMA_MAP_STATE 1137 1138config SYS_HAS_EARLY_PRINTK 1139 bool 1140 1141config SYS_SUPPORTS_HOTPLUG_CPU 1142 bool 1143 1144config MIPS_BONITO64 1145 bool 1146 1147config MIPS_MSC 1148 bool 1149 1150config SYNC_R4K 1151 bool 1152 1153config MIPS_MACHINE 1154 def_bool n 1155 1156config NO_IOPORT_MAP 1157 def_bool n 1158 1159config GENERIC_CSUM 1160 def_bool CPU_NO_LOAD_STORE_LR 1161 1162config GENERIC_ISA_DMA 1163 bool 1164 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1165 select ISA_DMA_API 1166 1167config GENERIC_ISA_DMA_SUPPORT_BROKEN 1168 bool 1169 select GENERIC_ISA_DMA 1170 1171config HAVE_PLAT_DELAY 1172 bool 1173 1174config HAVE_PLAT_FW_INIT_CMDLINE 1175 bool 1176 1177config HAVE_PLAT_MEMCPY 1178 bool 1179 1180config ISA_DMA_API 1181 bool 1182 1183config HOLES_IN_ZONE 1184 bool 1185 1186config SYS_SUPPORTS_RELOCATABLE 1187 bool 1188 help 1189 Selected if the platform supports relocating the kernel. 1190 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1191 to allow access to command line and entropy sources. 1192 1193config MIPS_CBPF_JIT 1194 def_bool y 1195 depends on BPF_JIT && HAVE_CBPF_JIT 1196 1197config MIPS_EBPF_JIT 1198 def_bool y 1199 depends on BPF_JIT && HAVE_EBPF_JIT 1200 1201 1202# 1203# Endianness selection. Sufficiently obscure so many users don't know what to 1204# answer,so we try hard to limit the available choices. Also the use of a 1205# choice statement should be more obvious to the user. 1206# 1207choice 1208 prompt "Endianness selection" 1209 help 1210 Some MIPS machines can be configured for either little or big endian 1211 byte order. These modes require different kernels and a different 1212 Linux distribution. In general there is one preferred byteorder for a 1213 particular system but some systems are just as commonly used in the 1214 one or the other endianness. 1215 1216config CPU_BIG_ENDIAN 1217 bool "Big endian" 1218 depends on SYS_SUPPORTS_BIG_ENDIAN 1219 1220config CPU_LITTLE_ENDIAN 1221 bool "Little endian" 1222 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1223 1224endchoice 1225 1226config EXPORT_UASM 1227 bool 1228 1229config SYS_SUPPORTS_APM_EMULATION 1230 bool 1231 1232config SYS_SUPPORTS_BIG_ENDIAN 1233 bool 1234 1235config SYS_SUPPORTS_LITTLE_ENDIAN 1236 bool 1237 1238config SYS_SUPPORTS_HUGETLBFS 1239 bool 1240 depends on CPU_SUPPORTS_HUGEPAGES 1241 default y 1242 1243config MIPS_HUGE_TLB_SUPPORT 1244 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1245 1246config IRQ_CPU_RM7K 1247 bool 1248 1249config IRQ_MSP_SLP 1250 bool 1251 1252config IRQ_MSP_CIC 1253 bool 1254 1255config IRQ_TXX9 1256 bool 1257 1258config IRQ_GT641XX 1259 bool 1260 1261config PCI_GT64XXX_PCI0 1262 bool 1263 1264config PCI_XTALK_BRIDGE 1265 bool 1266 1267config NO_EXCEPT_FILL 1268 bool 1269 1270config SOC_PNX833X 1271 bool 1272 select CEVT_R4K 1273 select CSRC_R4K 1274 select IRQ_MIPS_CPU 1275 select DMA_NONCOHERENT 1276 select SYS_HAS_CPU_MIPS32_R2 1277 select SYS_SUPPORTS_32BIT_KERNEL 1278 select SYS_SUPPORTS_LITTLE_ENDIAN 1279 select SYS_SUPPORTS_BIG_ENDIAN 1280 select SYS_SUPPORTS_MIPS16 1281 select CPU_MIPSR2_IRQ_VI 1282 1283config SOC_PNX8335 1284 bool 1285 select SOC_PNX833X 1286 1287config MIPS_SPRAM 1288 bool 1289 1290config SWAP_IO_SPACE 1291 bool 1292 1293config SGI_HAS_INDYDOG 1294 bool 1295 1296config SGI_HAS_HAL2 1297 bool 1298 1299config SGI_HAS_SEEQ 1300 bool 1301 1302config SGI_HAS_WD93 1303 bool 1304 1305config SGI_HAS_ZILOG 1306 bool 1307 1308config SGI_HAS_I8042 1309 bool 1310 1311config DEFAULT_SGI_PARTITION 1312 bool 1313 1314config FW_ARC32 1315 bool 1316 1317config FW_SNIPROM 1318 bool 1319 1320config BOOT_ELF32 1321 bool 1322 1323config MIPS_L1_CACHE_SHIFT_4 1324 bool 1325 1326config MIPS_L1_CACHE_SHIFT_5 1327 bool 1328 1329config MIPS_L1_CACHE_SHIFT_6 1330 bool 1331 1332config MIPS_L1_CACHE_SHIFT_7 1333 bool 1334 1335config MIPS_L1_CACHE_SHIFT 1336 int 1337 default "7" if MIPS_L1_CACHE_SHIFT_7 1338 default "6" if MIPS_L1_CACHE_SHIFT_6 1339 default "5" if MIPS_L1_CACHE_SHIFT_5 1340 default "4" if MIPS_L1_CACHE_SHIFT_4 1341 default "5" 1342 1343config ARC_CMDLINE_ONLY 1344 bool 1345 1346config ARC_CONSOLE 1347 bool "ARC console support" 1348 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1349 1350config ARC_MEMORY 1351 bool 1352 1353config ARC_PROMLIB 1354 bool 1355 1356config FW_ARC64 1357 bool 1358 1359config BOOT_ELF64 1360 bool 1361 1362menu "CPU selection" 1363 1364choice 1365 prompt "CPU type" 1366 default CPU_R4X00 1367 1368config CPU_LOONGSON64 1369 bool "Loongson 64-bit CPU" 1370 depends on SYS_HAS_CPU_LOONGSON64 1371 select ARCH_HAS_PHYS_TO_DMA 1372 select CPU_MIPSR2 1373 select CPU_HAS_PREFETCH 1374 select CPU_SUPPORTS_64BIT_KERNEL 1375 select CPU_SUPPORTS_HIGHMEM 1376 select CPU_SUPPORTS_HUGEPAGES 1377 select CPU_SUPPORTS_MSA 1378 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1379 select CPU_MIPSR2_IRQ_VI 1380 select WEAK_ORDERING 1381 select WEAK_REORDERING_BEYOND_LLSC 1382 select MIPS_ASID_BITS_VARIABLE 1383 select MIPS_PGD_C0_CONTEXT 1384 select MIPS_L1_CACHE_SHIFT_6 1385 select GPIOLIB 1386 select SWIOTLB 1387 select HAVE_KVM 1388 help 1389 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1390 cores implements the MIPS64R2 instruction set with many extensions, 1391 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1392 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1393 Loongson-2E/2F is not covered here and will be removed in future. 1394 1395config LOONGSON3_ENHANCEMENT 1396 bool "New Loongson-3 CPU Enhancements" 1397 default n 1398 depends on CPU_LOONGSON64 1399 help 1400 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1401 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1402 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1403 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1404 Fast TLB refill support, etc. 1405 1406 This option enable those enhancements which are not probed at run 1407 time. If you want a generic kernel to run on all Loongson 3 machines, 1408 please say 'N' here. If you want a high-performance kernel to run on 1409 new Loongson-3 machines only, please say 'Y' here. 1410 1411config CPU_LOONGSON3_WORKAROUNDS 1412 bool "Old Loongson-3 LLSC Workarounds" 1413 default y if SMP 1414 depends on CPU_LOONGSON64 1415 help 1416 Loongson-3 processors have the llsc issues which require workarounds. 1417 Without workarounds the system may hang unexpectedly. 1418 1419 Newer Loongson-3 will fix these issues and no workarounds are needed. 1420 The workarounds have no significant side effect on them but may 1421 decrease the performance of the system so this option should be 1422 disabled unless the kernel is intended to be run on old systems. 1423 1424 If unsure, please say Y. 1425 1426config CPU_LOONGSON3_CPUCFG_EMULATION 1427 bool "Emulate the CPUCFG instruction on older Loongson cores" 1428 default y 1429 depends on CPU_LOONGSON64 1430 help 1431 Loongson-3A R4 and newer have the CPUCFG instruction available for 1432 userland to query CPU capabilities, much like CPUID on x86. This 1433 option provides emulation of the instruction on older Loongson 1434 cores, back to Loongson-3A1000. 1435 1436 If unsure, please say Y. 1437 1438config CPU_LOONGSON2E 1439 bool "Loongson 2E" 1440 depends on SYS_HAS_CPU_LOONGSON2E 1441 select CPU_LOONGSON2EF 1442 help 1443 The Loongson 2E processor implements the MIPS III instruction set 1444 with many extensions. 1445 1446 It has an internal FPGA northbridge, which is compatible to 1447 bonito64. 1448 1449config CPU_LOONGSON2F 1450 bool "Loongson 2F" 1451 depends on SYS_HAS_CPU_LOONGSON2F 1452 select CPU_LOONGSON2EF 1453 select GPIOLIB 1454 help 1455 The Loongson 2F processor implements the MIPS III instruction set 1456 with many extensions. 1457 1458 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1459 have a similar programming interface with FPGA northbridge used in 1460 Loongson2E. 1461 1462config CPU_LOONGSON1B 1463 bool "Loongson 1B" 1464 depends on SYS_HAS_CPU_LOONGSON1B 1465 select CPU_LOONGSON32 1466 select LEDS_GPIO_REGISTER 1467 help 1468 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1469 Release 1 instruction set and part of the MIPS32 Release 2 1470 instruction set. 1471 1472config CPU_LOONGSON1C 1473 bool "Loongson 1C" 1474 depends on SYS_HAS_CPU_LOONGSON1C 1475 select CPU_LOONGSON32 1476 select LEDS_GPIO_REGISTER 1477 help 1478 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1479 Release 1 instruction set and part of the MIPS32 Release 2 1480 instruction set. 1481 1482config CPU_MIPS32_R1 1483 bool "MIPS32 Release 1" 1484 depends on SYS_HAS_CPU_MIPS32_R1 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_HIGHMEM 1488 help 1489 Choose this option to build a kernel for release 1 or later of the 1490 MIPS32 architecture. Most modern embedded systems with a 32-bit 1491 MIPS processor are based on a MIPS32 processor. If you know the 1492 specific type of processor in your system, choose those that one 1493 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1494 Release 2 of the MIPS32 architecture is available since several 1495 years so chances are you even have a MIPS32 Release 2 processor 1496 in which case you should choose CPU_MIPS32_R2 instead for better 1497 performance. 1498 1499config CPU_MIPS32_R2 1500 bool "MIPS32 Release 2" 1501 depends on SYS_HAS_CPU_MIPS32_R2 1502 select CPU_HAS_PREFETCH 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_MSA 1506 select HAVE_KVM 1507 help 1508 Choose this option to build a kernel for release 2 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 1514config CPU_MIPS32_R5 1515 bool "MIPS32 Release 5" 1516 depends on SYS_HAS_CPU_MIPS32_R5 1517 select CPU_HAS_PREFETCH 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select CPU_SUPPORTS_HIGHMEM 1520 select CPU_SUPPORTS_MSA 1521 select HAVE_KVM 1522 select MIPS_O32_FP64_SUPPORT 1523 help 1524 Choose this option to build a kernel for release 5 or later of the 1525 MIPS32 architecture. New MIPS processors, starting with the Warrior 1526 family, are based on a MIPS32r5 processor. If you own an older 1527 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1528 1529config CPU_MIPS32_R6 1530 bool "MIPS32 Release 6" 1531 depends on SYS_HAS_CPU_MIPS32_R6 1532 select CPU_HAS_PREFETCH 1533 select CPU_NO_LOAD_STORE_LR 1534 select CPU_SUPPORTS_32BIT_KERNEL 1535 select CPU_SUPPORTS_HIGHMEM 1536 select CPU_SUPPORTS_MSA 1537 select HAVE_KVM 1538 select MIPS_O32_FP64_SUPPORT 1539 help 1540 Choose this option to build a kernel for release 6 or later of the 1541 MIPS32 architecture. New MIPS processors, starting with the Warrior 1542 family, are based on a MIPS32r6 processor. If you own an older 1543 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1544 1545config CPU_MIPS64_R1 1546 bool "MIPS64 Release 1" 1547 depends on SYS_HAS_CPU_MIPS64_R1 1548 select CPU_HAS_PREFETCH 1549 select CPU_SUPPORTS_32BIT_KERNEL 1550 select CPU_SUPPORTS_64BIT_KERNEL 1551 select CPU_SUPPORTS_HIGHMEM 1552 select CPU_SUPPORTS_HUGEPAGES 1553 help 1554 Choose this option to build a kernel for release 1 or later of the 1555 MIPS64 architecture. Many modern embedded systems with a 64-bit 1556 MIPS processor are based on a MIPS64 processor. If you know the 1557 specific type of processor in your system, choose those that one 1558 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1559 Release 2 of the MIPS64 architecture is available since several 1560 years so chances are you even have a MIPS64 Release 2 processor 1561 in which case you should choose CPU_MIPS64_R2 instead for better 1562 performance. 1563 1564config CPU_MIPS64_R2 1565 bool "MIPS64 Release 2" 1566 depends on SYS_HAS_CPU_MIPS64_R2 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 select CPU_SUPPORTS_MSA 1573 select HAVE_KVM 1574 help 1575 Choose this option to build a kernel for release 2 or later of the 1576 MIPS64 architecture. Many modern embedded systems with a 64-bit 1577 MIPS processor are based on a MIPS64 processor. If you know the 1578 specific type of processor in your system, choose those that one 1579 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1580 1581config CPU_MIPS64_R5 1582 bool "MIPS64 Release 5" 1583 depends on SYS_HAS_CPU_MIPS64_R5 1584 select CPU_HAS_PREFETCH 1585 select CPU_SUPPORTS_32BIT_KERNEL 1586 select CPU_SUPPORTS_64BIT_KERNEL 1587 select CPU_SUPPORTS_HIGHMEM 1588 select CPU_SUPPORTS_HUGEPAGES 1589 select CPU_SUPPORTS_MSA 1590 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1591 select HAVE_KVM 1592 help 1593 Choose this option to build a kernel for release 5 or later of the 1594 MIPS64 architecture. This is a intermediate MIPS architecture 1595 release partly implementing release 6 features. Though there is no 1596 any hardware known to be based on this release. 1597 1598config CPU_MIPS64_R6 1599 bool "MIPS64 Release 6" 1600 depends on SYS_HAS_CPU_MIPS64_R6 1601 select CPU_HAS_PREFETCH 1602 select CPU_NO_LOAD_STORE_LR 1603 select CPU_SUPPORTS_32BIT_KERNEL 1604 select CPU_SUPPORTS_64BIT_KERNEL 1605 select CPU_SUPPORTS_HIGHMEM 1606 select CPU_SUPPORTS_HUGEPAGES 1607 select CPU_SUPPORTS_MSA 1608 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1609 select HAVE_KVM 1610 help 1611 Choose this option to build a kernel for release 6 or later of the 1612 MIPS64 architecture. New MIPS processors, starting with the Warrior 1613 family, are based on a MIPS64r6 processor. If you own an older 1614 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1615 1616config CPU_P5600 1617 bool "MIPS Warrior P5600" 1618 depends on SYS_HAS_CPU_P5600 1619 select CPU_HAS_PREFETCH 1620 select CPU_SUPPORTS_32BIT_KERNEL 1621 select CPU_SUPPORTS_HIGHMEM 1622 select CPU_SUPPORTS_MSA 1623 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1624 select CPU_SUPPORTS_CPUFREQ 1625 select CPU_MIPSR2_IRQ_VI 1626 select CPU_MIPSR2_IRQ_EI 1627 select HAVE_KVM 1628 select MIPS_O32_FP64_SUPPORT 1629 help 1630 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1631 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1632 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1633 level features like up to six P5600 calculation cores, CM2 with L2 1634 cache, IOCU/IOMMU (though might be unused depending on the system- 1635 specific IP core configuration), GIC, CPC, virtualisation module, 1636 eJTAG and PDtrace. 1637 1638config CPU_R3000 1639 bool "R3000" 1640 depends on SYS_HAS_CPU_R3000 1641 select CPU_HAS_WB 1642 select CPU_R3K_TLB 1643 select CPU_SUPPORTS_32BIT_KERNEL 1644 select CPU_SUPPORTS_HIGHMEM 1645 help 1646 Please make sure to pick the right CPU type. Linux/MIPS is not 1647 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1648 *not* work on R4000 machines and vice versa. However, since most 1649 of the supported machines have an R4000 (or similar) CPU, R4x00 1650 might be a safe bet. If the resulting kernel does not work, 1651 try to recompile with R3000. 1652 1653config CPU_TX39XX 1654 bool "R39XX" 1655 depends on SYS_HAS_CPU_TX39XX 1656 select CPU_SUPPORTS_32BIT_KERNEL 1657 select CPU_R3K_TLB 1658 1659config CPU_VR41XX 1660 bool "R41xx" 1661 depends on SYS_HAS_CPU_VR41XX 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_64BIT_KERNEL 1664 help 1665 The options selects support for the NEC VR4100 series of processors. 1666 Only choose this option if you have one of these processors as a 1667 kernel built with this option will not run on any other type of 1668 processor or vice versa. 1669 1670config CPU_R4X00 1671 bool "R4x00" 1672 depends on SYS_HAS_CPU_R4X00 1673 select CPU_SUPPORTS_32BIT_KERNEL 1674 select CPU_SUPPORTS_64BIT_KERNEL 1675 select CPU_SUPPORTS_HUGEPAGES 1676 help 1677 MIPS Technologies R4000-series processors other than 4300, including 1678 the R4000, R4400, R4600, and 4700. 1679 1680config CPU_TX49XX 1681 bool "R49XX" 1682 depends on SYS_HAS_CPU_TX49XX 1683 select CPU_HAS_PREFETCH 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HUGEPAGES 1687 1688config CPU_R5000 1689 bool "R5000" 1690 depends on SYS_HAS_CPU_R5000 1691 select CPU_SUPPORTS_32BIT_KERNEL 1692 select CPU_SUPPORTS_64BIT_KERNEL 1693 select CPU_SUPPORTS_HUGEPAGES 1694 help 1695 MIPS Technologies R5000-series processors other than the Nevada. 1696 1697config CPU_R5500 1698 bool "R5500" 1699 depends on SYS_HAS_CPU_R5500 1700 select CPU_SUPPORTS_32BIT_KERNEL 1701 select CPU_SUPPORTS_64BIT_KERNEL 1702 select CPU_SUPPORTS_HUGEPAGES 1703 help 1704 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1705 instruction set. 1706 1707config CPU_NEVADA 1708 bool "RM52xx" 1709 depends on SYS_HAS_CPU_NEVADA 1710 select CPU_SUPPORTS_32BIT_KERNEL 1711 select CPU_SUPPORTS_64BIT_KERNEL 1712 select CPU_SUPPORTS_HUGEPAGES 1713 help 1714 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1715 1716config CPU_R10000 1717 bool "R10000" 1718 depends on SYS_HAS_CPU_R10000 1719 select CPU_HAS_PREFETCH 1720 select CPU_SUPPORTS_32BIT_KERNEL 1721 select CPU_SUPPORTS_64BIT_KERNEL 1722 select CPU_SUPPORTS_HIGHMEM 1723 select CPU_SUPPORTS_HUGEPAGES 1724 help 1725 MIPS Technologies R10000-series processors. 1726 1727config CPU_RM7000 1728 bool "RM7000" 1729 depends on SYS_HAS_CPU_RM7000 1730 select CPU_HAS_PREFETCH 1731 select CPU_SUPPORTS_32BIT_KERNEL 1732 select CPU_SUPPORTS_64BIT_KERNEL 1733 select CPU_SUPPORTS_HIGHMEM 1734 select CPU_SUPPORTS_HUGEPAGES 1735 1736config CPU_SB1 1737 bool "SB1" 1738 depends on SYS_HAS_CPU_SB1 1739 select CPU_SUPPORTS_32BIT_KERNEL 1740 select CPU_SUPPORTS_64BIT_KERNEL 1741 select CPU_SUPPORTS_HIGHMEM 1742 select CPU_SUPPORTS_HUGEPAGES 1743 select WEAK_ORDERING 1744 1745config CPU_CAVIUM_OCTEON 1746 bool "Cavium Octeon processor" 1747 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1748 select CPU_HAS_PREFETCH 1749 select CPU_SUPPORTS_64BIT_KERNEL 1750 select WEAK_ORDERING 1751 select CPU_SUPPORTS_HIGHMEM 1752 select CPU_SUPPORTS_HUGEPAGES 1753 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1754 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1755 select MIPS_L1_CACHE_SHIFT_7 1756 select HAVE_KVM 1757 help 1758 The Cavium Octeon processor is a highly integrated chip containing 1759 many ethernet hardware widgets for networking tasks. The processor 1760 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1761 Full details can be found at http://www.caviumnetworks.com. 1762 1763config CPU_BMIPS 1764 bool "Broadcom BMIPS" 1765 depends on SYS_HAS_CPU_BMIPS 1766 select CPU_MIPS32 1767 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1768 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1769 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1770 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1771 select CPU_SUPPORTS_32BIT_KERNEL 1772 select DMA_NONCOHERENT 1773 select IRQ_MIPS_CPU 1774 select SWAP_IO_SPACE 1775 select WEAK_ORDERING 1776 select CPU_SUPPORTS_HIGHMEM 1777 select CPU_HAS_PREFETCH 1778 select CPU_SUPPORTS_CPUFREQ 1779 select MIPS_EXTERNAL_TIMER 1780 help 1781 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1782 1783config CPU_XLR 1784 bool "Netlogic XLR SoC" 1785 depends on SYS_HAS_CPU_XLR 1786 select CPU_SUPPORTS_32BIT_KERNEL 1787 select CPU_SUPPORTS_64BIT_KERNEL 1788 select CPU_SUPPORTS_HIGHMEM 1789 select CPU_SUPPORTS_HUGEPAGES 1790 select WEAK_ORDERING 1791 select WEAK_REORDERING_BEYOND_LLSC 1792 help 1793 Netlogic Microsystems XLR/XLS processors. 1794 1795config CPU_XLP 1796 bool "Netlogic XLP SoC" 1797 depends on SYS_HAS_CPU_XLP 1798 select CPU_SUPPORTS_32BIT_KERNEL 1799 select CPU_SUPPORTS_64BIT_KERNEL 1800 select CPU_SUPPORTS_HIGHMEM 1801 select WEAK_ORDERING 1802 select WEAK_REORDERING_BEYOND_LLSC 1803 select CPU_HAS_PREFETCH 1804 select CPU_MIPSR2 1805 select CPU_SUPPORTS_HUGEPAGES 1806 select MIPS_ASID_BITS_VARIABLE 1807 help 1808 Netlogic Microsystems XLP processors. 1809endchoice 1810 1811config CPU_MIPS32_3_5_FEATURES 1812 bool "MIPS32 Release 3.5 Features" 1813 depends on SYS_HAS_CPU_MIPS32_R3_5 1814 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1815 CPU_P5600 1816 help 1817 Choose this option to build a kernel for release 2 or later of the 1818 MIPS32 architecture including features from the 3.5 release such as 1819 support for Enhanced Virtual Addressing (EVA). 1820 1821config CPU_MIPS32_3_5_EVA 1822 bool "Enhanced Virtual Addressing (EVA)" 1823 depends on CPU_MIPS32_3_5_FEATURES 1824 select EVA 1825 default y 1826 help 1827 Choose this option if you want to enable the Enhanced Virtual 1828 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1829 One of its primary benefits is an increase in the maximum size 1830 of lowmem (up to 3GB). If unsure, say 'N' here. 1831 1832config CPU_MIPS32_R5_FEATURES 1833 bool "MIPS32 Release 5 Features" 1834 depends on SYS_HAS_CPU_MIPS32_R5 1835 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1836 help 1837 Choose this option to build a kernel for release 2 or later of the 1838 MIPS32 architecture including features from release 5 such as 1839 support for Extended Physical Addressing (XPA). 1840 1841config CPU_MIPS32_R5_XPA 1842 bool "Extended Physical Addressing (XPA)" 1843 depends on CPU_MIPS32_R5_FEATURES 1844 depends on !EVA 1845 depends on !PAGE_SIZE_4KB 1846 depends on SYS_SUPPORTS_HIGHMEM 1847 select XPA 1848 select HIGHMEM 1849 select PHYS_ADDR_T_64BIT 1850 default n 1851 help 1852 Choose this option if you want to enable the Extended Physical 1853 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1854 benefit is to increase physical addressing equal to or greater 1855 than 40 bits. Note that this has the side effect of turning on 1856 64-bit addressing which in turn makes the PTEs 64-bit in size. 1857 If unsure, say 'N' here. 1858 1859if CPU_LOONGSON2F 1860config CPU_NOP_WORKAROUNDS 1861 bool 1862 1863config CPU_JUMP_WORKAROUNDS 1864 bool 1865 1866config CPU_LOONGSON2F_WORKAROUNDS 1867 bool "Loongson 2F Workarounds" 1868 default y 1869 select CPU_NOP_WORKAROUNDS 1870 select CPU_JUMP_WORKAROUNDS 1871 help 1872 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1873 require workarounds. Without workarounds the system may hang 1874 unexpectedly. For more information please refer to the gas 1875 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1876 1877 Loongson 2F03 and later have fixed these issues and no workarounds 1878 are needed. The workarounds have no significant side effect on them 1879 but may decrease the performance of the system so this option should 1880 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1881 systems. 1882 1883 If unsure, please say Y. 1884endif # CPU_LOONGSON2F 1885 1886config SYS_SUPPORTS_ZBOOT 1887 bool 1888 select HAVE_KERNEL_GZIP 1889 select HAVE_KERNEL_BZIP2 1890 select HAVE_KERNEL_LZ4 1891 select HAVE_KERNEL_LZMA 1892 select HAVE_KERNEL_LZO 1893 select HAVE_KERNEL_XZ 1894 1895config SYS_SUPPORTS_ZBOOT_UART16550 1896 bool 1897 select SYS_SUPPORTS_ZBOOT 1898 1899config SYS_SUPPORTS_ZBOOT_UART_PROM 1900 bool 1901 select SYS_SUPPORTS_ZBOOT 1902 1903config CPU_LOONGSON2EF 1904 bool 1905 select CPU_SUPPORTS_32BIT_KERNEL 1906 select CPU_SUPPORTS_64BIT_KERNEL 1907 select CPU_SUPPORTS_HIGHMEM 1908 select CPU_SUPPORTS_HUGEPAGES 1909 select ARCH_HAS_PHYS_TO_DMA 1910 1911config CPU_LOONGSON32 1912 bool 1913 select CPU_MIPS32 1914 select CPU_MIPSR2 1915 select CPU_HAS_PREFETCH 1916 select CPU_SUPPORTS_32BIT_KERNEL 1917 select CPU_SUPPORTS_HIGHMEM 1918 select CPU_SUPPORTS_CPUFREQ 1919 1920config CPU_BMIPS32_3300 1921 select SMP_UP if SMP 1922 bool 1923 1924config CPU_BMIPS4350 1925 bool 1926 select SYS_SUPPORTS_SMP 1927 select SYS_SUPPORTS_HOTPLUG_CPU 1928 1929config CPU_BMIPS4380 1930 bool 1931 select MIPS_L1_CACHE_SHIFT_6 1932 select SYS_SUPPORTS_SMP 1933 select SYS_SUPPORTS_HOTPLUG_CPU 1934 select CPU_HAS_RIXI 1935 1936config CPU_BMIPS5000 1937 bool 1938 select MIPS_CPU_SCACHE 1939 select MIPS_L1_CACHE_SHIFT_7 1940 select SYS_SUPPORTS_SMP 1941 select SYS_SUPPORTS_HOTPLUG_CPU 1942 select CPU_HAS_RIXI 1943 1944config SYS_HAS_CPU_LOONGSON64 1945 bool 1946 select CPU_SUPPORTS_CPUFREQ 1947 select CPU_HAS_RIXI 1948 1949config SYS_HAS_CPU_LOONGSON2E 1950 bool 1951 1952config SYS_HAS_CPU_LOONGSON2F 1953 bool 1954 select CPU_SUPPORTS_CPUFREQ 1955 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1956 1957config SYS_HAS_CPU_LOONGSON1B 1958 bool 1959 1960config SYS_HAS_CPU_LOONGSON1C 1961 bool 1962 1963config SYS_HAS_CPU_MIPS32_R1 1964 bool 1965 1966config SYS_HAS_CPU_MIPS32_R2 1967 bool 1968 1969config SYS_HAS_CPU_MIPS32_R3_5 1970 bool 1971 1972config SYS_HAS_CPU_MIPS32_R5 1973 bool 1974 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1975 1976config SYS_HAS_CPU_MIPS32_R6 1977 bool 1978 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1979 1980config SYS_HAS_CPU_MIPS64_R1 1981 bool 1982 1983config SYS_HAS_CPU_MIPS64_R2 1984 bool 1985 1986config SYS_HAS_CPU_MIPS64_R6 1987 bool 1988 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1989 1990config SYS_HAS_CPU_P5600 1991 bool 1992 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1993 1994config SYS_HAS_CPU_R3000 1995 bool 1996 1997config SYS_HAS_CPU_TX39XX 1998 bool 1999 2000config SYS_HAS_CPU_VR41XX 2001 bool 2002 2003config SYS_HAS_CPU_R4X00 2004 bool 2005 2006config SYS_HAS_CPU_TX49XX 2007 bool 2008 2009config SYS_HAS_CPU_R5000 2010 bool 2011 2012config SYS_HAS_CPU_R5500 2013 bool 2014 2015config SYS_HAS_CPU_NEVADA 2016 bool 2017 2018config SYS_HAS_CPU_R10000 2019 bool 2020 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2021 2022config SYS_HAS_CPU_RM7000 2023 bool 2024 2025config SYS_HAS_CPU_SB1 2026 bool 2027 2028config SYS_HAS_CPU_CAVIUM_OCTEON 2029 bool 2030 2031config SYS_HAS_CPU_BMIPS 2032 bool 2033 2034config SYS_HAS_CPU_BMIPS32_3300 2035 bool 2036 select SYS_HAS_CPU_BMIPS 2037 2038config SYS_HAS_CPU_BMIPS4350 2039 bool 2040 select SYS_HAS_CPU_BMIPS 2041 2042config SYS_HAS_CPU_BMIPS4380 2043 bool 2044 select SYS_HAS_CPU_BMIPS 2045 2046config SYS_HAS_CPU_BMIPS5000 2047 bool 2048 select SYS_HAS_CPU_BMIPS 2049 select ARCH_HAS_SYNC_DMA_FOR_CPU 2050 2051config SYS_HAS_CPU_XLR 2052 bool 2053 2054config SYS_HAS_CPU_XLP 2055 bool 2056 2057# 2058# CPU may reorder R->R, R->W, W->R, W->W 2059# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2060# 2061config WEAK_ORDERING 2062 bool 2063 2064# 2065# CPU may reorder reads and writes beyond LL/SC 2066# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2067# 2068config WEAK_REORDERING_BEYOND_LLSC 2069 bool 2070endmenu 2071 2072# 2073# These two indicate any level of the MIPS32 and MIPS64 architecture 2074# 2075config CPU_MIPS32 2076 bool 2077 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2078 CPU_MIPS32_R6 || CPU_P5600 2079 2080config CPU_MIPS64 2081 bool 2082 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2083 CPU_MIPS64_R6 2084 2085# 2086# These indicate the revision of the architecture 2087# 2088config CPU_MIPSR1 2089 bool 2090 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2091 2092config CPU_MIPSR2 2093 bool 2094 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2095 select CPU_HAS_RIXI 2096 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2097 select MIPS_SPRAM 2098 2099config CPU_MIPSR5 2100 bool 2101 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2102 select CPU_HAS_RIXI 2103 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2104 select MIPS_SPRAM 2105 2106config CPU_MIPSR6 2107 bool 2108 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2109 select CPU_HAS_RIXI 2110 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2111 select HAVE_ARCH_BITREVERSE 2112 select MIPS_ASID_BITS_VARIABLE 2113 select MIPS_CRC_SUPPORT 2114 select MIPS_SPRAM 2115 2116config TARGET_ISA_REV 2117 int 2118 default 1 if CPU_MIPSR1 2119 default 2 if CPU_MIPSR2 2120 default 5 if CPU_MIPSR5 2121 default 6 if CPU_MIPSR6 2122 default 0 2123 help 2124 Reflects the ISA revision being targeted by the kernel build. This 2125 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2126 2127config EVA 2128 bool 2129 2130config XPA 2131 bool 2132 2133config SYS_SUPPORTS_32BIT_KERNEL 2134 bool 2135config SYS_SUPPORTS_64BIT_KERNEL 2136 bool 2137config CPU_SUPPORTS_32BIT_KERNEL 2138 bool 2139config CPU_SUPPORTS_64BIT_KERNEL 2140 bool 2141config CPU_SUPPORTS_CPUFREQ 2142 bool 2143config CPU_SUPPORTS_ADDRWINCFG 2144 bool 2145config CPU_SUPPORTS_HUGEPAGES 2146 bool 2147 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2148config MIPS_PGD_C0_CONTEXT 2149 bool 2150 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2151 2152# 2153# Set to y for ptrace access to watch registers. 2154# 2155config HARDWARE_WATCHPOINTS 2156 bool 2157 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2158 2159menu "Kernel type" 2160 2161choice 2162 prompt "Kernel code model" 2163 help 2164 You should only select this option if you have a workload that 2165 actually benefits from 64-bit processing or if your machine has 2166 large memory. You will only be presented a single option in this 2167 menu if your system does not support both 32-bit and 64-bit kernels. 2168 2169config 32BIT 2170 bool "32-bit kernel" 2171 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2172 select TRAD_SIGNALS 2173 help 2174 Select this option if you want to build a 32-bit kernel. 2175 2176config 64BIT 2177 bool "64-bit kernel" 2178 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2179 help 2180 Select this option if you want to build a 64-bit kernel. 2181 2182endchoice 2183 2184config KVM_GUEST 2185 bool "KVM Guest Kernel" 2186 depends on BROKEN_ON_SMP 2187 help 2188 Select this option if building a guest kernel for KVM (Trap & Emulate) 2189 mode. 2190 2191config KVM_GUEST_TIMER_FREQ 2192 int "Count/Compare Timer Frequency (MHz)" 2193 depends on KVM_GUEST 2194 default 100 2195 help 2196 Set this to non-zero if building a guest kernel for KVM to skip RTC 2197 emulation when determining guest CPU Frequency. Instead, the guest's 2198 timer frequency is specified directly. 2199 2200config MIPS_VA_BITS_48 2201 bool "48 bits virtual memory" 2202 depends on 64BIT 2203 help 2204 Support a maximum at least 48 bits of application virtual 2205 memory. Default is 40 bits or less, depending on the CPU. 2206 For page sizes 16k and above, this option results in a small 2207 memory overhead for page tables. For 4k page size, a fourth 2208 level of page tables is added which imposes both a memory 2209 overhead as well as slower TLB fault handling. 2210 2211 If unsure, say N. 2212 2213choice 2214 prompt "Kernel page size" 2215 default PAGE_SIZE_4KB 2216 2217config PAGE_SIZE_4KB 2218 bool "4kB" 2219 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2220 help 2221 This option select the standard 4kB Linux page size. On some 2222 R3000-family processors this is the only available page size. Using 2223 4kB page size will minimize memory consumption and is therefore 2224 recommended for low memory systems. 2225 2226config PAGE_SIZE_8KB 2227 bool "8kB" 2228 depends on CPU_CAVIUM_OCTEON 2229 depends on !MIPS_VA_BITS_48 2230 help 2231 Using 8kB page size will result in higher performance kernel at 2232 the price of higher memory consumption. This option is available 2233 only on cnMIPS processors. Note that you will need a suitable Linux 2234 distribution to support this. 2235 2236config PAGE_SIZE_16KB 2237 bool "16kB" 2238 depends on !CPU_R3000 && !CPU_TX39XX 2239 help 2240 Using 16kB page size will result in higher performance kernel at 2241 the price of higher memory consumption. This option is available on 2242 all non-R3000 family processors. Note that you will need a suitable 2243 Linux distribution to support this. 2244 2245config PAGE_SIZE_32KB 2246 bool "32kB" 2247 depends on CPU_CAVIUM_OCTEON 2248 depends on !MIPS_VA_BITS_48 2249 help 2250 Using 32kB page size will result in higher performance kernel at 2251 the price of higher memory consumption. This option is available 2252 only on cnMIPS cores. Note that you will need a suitable Linux 2253 distribution to support this. 2254 2255config PAGE_SIZE_64KB 2256 bool "64kB" 2257 depends on !CPU_R3000 && !CPU_TX39XX 2258 help 2259 Using 64kB 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 processor. Not that at the time of this 2262 writing this option is still high experimental. 2263 2264endchoice 2265 2266config FORCE_MAX_ZONEORDER 2267 int "Maximum zone order" 2268 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2269 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2270 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2271 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2272 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2273 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2274 range 11 64 2275 default "11" 2276 help 2277 The kernel memory allocator divides physically contiguous memory 2278 blocks into "zones", where each zone is a power of two number of 2279 pages. This option selects the largest power of two that the kernel 2280 keeps in the memory allocator. If you need to allocate very large 2281 blocks of physically contiguous memory, then you may need to 2282 increase this value. 2283 2284 This config option is actually maximum order plus one. For example, 2285 a value of 11 means that the largest free memory block is 2^10 pages. 2286 2287 The page size is not necessarily 4KB. Keep this in mind 2288 when choosing a value for this option. 2289 2290config BOARD_SCACHE 2291 bool 2292 2293config IP22_CPU_SCACHE 2294 bool 2295 select BOARD_SCACHE 2296 2297# 2298# Support for a MIPS32 / MIPS64 style S-caches 2299# 2300config MIPS_CPU_SCACHE 2301 bool 2302 select BOARD_SCACHE 2303 2304config R5000_CPU_SCACHE 2305 bool 2306 select BOARD_SCACHE 2307 2308config RM7000_CPU_SCACHE 2309 bool 2310 select BOARD_SCACHE 2311 2312config SIBYTE_DMA_PAGEOPS 2313 bool "Use DMA to clear/copy pages" 2314 depends on CPU_SB1 2315 help 2316 Instead of using the CPU to zero and copy pages, use a Data Mover 2317 channel. These DMA channels are otherwise unused by the standard 2318 SiByte Linux port. Seems to give a small performance benefit. 2319 2320config CPU_HAS_PREFETCH 2321 bool 2322 2323config CPU_GENERIC_DUMP_TLB 2324 bool 2325 default y if !(CPU_R3000 || CPU_TX39XX) 2326 2327config MIPS_FP_SUPPORT 2328 bool "Floating Point support" if EXPERT 2329 default y 2330 help 2331 Select y to include support for floating point in the kernel 2332 including initialization of FPU hardware, FP context save & restore 2333 and emulation of an FPU where necessary. Without this support any 2334 userland program attempting to use floating point instructions will 2335 receive a SIGILL. 2336 2337 If you know that your userland will not attempt to use floating point 2338 instructions then you can say n here to shrink the kernel a little. 2339 2340 If unsure, say y. 2341 2342config CPU_R2300_FPU 2343 bool 2344 depends on MIPS_FP_SUPPORT 2345 default y if CPU_R3000 || CPU_TX39XX 2346 2347config CPU_R3K_TLB 2348 bool 2349 2350config CPU_R4K_FPU 2351 bool 2352 depends on MIPS_FP_SUPPORT 2353 default y if !CPU_R2300_FPU 2354 2355config CPU_R4K_CACHE_TLB 2356 bool 2357 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2358 2359config MIPS_MT_SMP 2360 bool "MIPS MT SMP support (1 TC on each available VPE)" 2361 default y 2362 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2363 select CPU_MIPSR2_IRQ_VI 2364 select CPU_MIPSR2_IRQ_EI 2365 select SYNC_R4K 2366 select MIPS_MT 2367 select SMP 2368 select SMP_UP 2369 select SYS_SUPPORTS_SMP 2370 select SYS_SUPPORTS_SCHED_SMT 2371 select MIPS_PERF_SHARED_TC_COUNTERS 2372 help 2373 This is a kernel model which is known as SMVP. This is supported 2374 on cores with the MT ASE and uses the available VPEs to implement 2375 virtual processors which supports SMP. This is equivalent to the 2376 Intel Hyperthreading feature. For further information go to 2377 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2378 2379config MIPS_MT 2380 bool 2381 2382config SCHED_SMT 2383 bool "SMT (multithreading) scheduler support" 2384 depends on SYS_SUPPORTS_SCHED_SMT 2385 default n 2386 help 2387 SMT scheduler support improves the CPU scheduler's decision making 2388 when dealing with MIPS MT enabled cores at a cost of slightly 2389 increased overhead in some places. If unsure say N here. 2390 2391config SYS_SUPPORTS_SCHED_SMT 2392 bool 2393 2394config SYS_SUPPORTS_MULTITHREADING 2395 bool 2396 2397config MIPS_MT_FPAFF 2398 bool "Dynamic FPU affinity for FP-intensive threads" 2399 default y 2400 depends on MIPS_MT_SMP 2401 2402config MIPSR2_TO_R6_EMULATOR 2403 bool "MIPS R2-to-R6 emulator" 2404 depends on CPU_MIPSR6 2405 depends on MIPS_FP_SUPPORT 2406 default y 2407 help 2408 Choose this option if you want to run non-R6 MIPS userland code. 2409 Even if you say 'Y' here, the emulator will still be disabled by 2410 default. You can enable it using the 'mipsr2emu' kernel option. 2411 The only reason this is a build-time option is to save ~14K from the 2412 final kernel image. 2413 2414config SYS_SUPPORTS_VPE_LOADER 2415 bool 2416 depends on SYS_SUPPORTS_MULTITHREADING 2417 help 2418 Indicates that the platform supports the VPE loader, and provides 2419 physical_memsize. 2420 2421config MIPS_VPE_LOADER 2422 bool "VPE loader support." 2423 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2424 select CPU_MIPSR2_IRQ_VI 2425 select CPU_MIPSR2_IRQ_EI 2426 select MIPS_MT 2427 help 2428 Includes a loader for loading an elf relocatable object 2429 onto another VPE and running it. 2430 2431config MIPS_VPE_LOADER_CMP 2432 bool 2433 default "y" 2434 depends on MIPS_VPE_LOADER && MIPS_CMP 2435 2436config MIPS_VPE_LOADER_MT 2437 bool 2438 default "y" 2439 depends on MIPS_VPE_LOADER && !MIPS_CMP 2440 2441config MIPS_VPE_LOADER_TOM 2442 bool "Load VPE program into memory hidden from linux" 2443 depends on MIPS_VPE_LOADER 2444 default y 2445 help 2446 The loader can use memory that is present but has been hidden from 2447 Linux using the kernel command line option "mem=xxMB". It's up to 2448 you to ensure the amount you put in the option and the space your 2449 program requires is less or equal to the amount physically present. 2450 2451config MIPS_VPE_APSP_API 2452 bool "Enable support for AP/SP API (RTLX)" 2453 depends on MIPS_VPE_LOADER 2454 2455config MIPS_VPE_APSP_API_CMP 2456 bool 2457 default "y" 2458 depends on MIPS_VPE_APSP_API && MIPS_CMP 2459 2460config MIPS_VPE_APSP_API_MT 2461 bool 2462 default "y" 2463 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2464 2465config MIPS_CMP 2466 bool "MIPS CMP framework support (DEPRECATED)" 2467 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2468 select SMP 2469 select SYNC_R4K 2470 select SYS_SUPPORTS_SMP 2471 select WEAK_ORDERING 2472 default n 2473 help 2474 Select this if you are using a bootloader which implements the "CMP 2475 framework" protocol (ie. YAMON) and want your kernel to make use of 2476 its ability to start secondary CPUs. 2477 2478 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2479 instead of this. 2480 2481config MIPS_CPS 2482 bool "MIPS Coherent Processing System support" 2483 depends on SYS_SUPPORTS_MIPS_CPS 2484 select MIPS_CM 2485 select MIPS_CPS_PM if HOTPLUG_CPU 2486 select SMP 2487 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2488 select SYS_SUPPORTS_HOTPLUG_CPU 2489 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2490 select SYS_SUPPORTS_SMP 2491 select WEAK_ORDERING 2492 help 2493 Select this if you wish to run an SMP kernel across multiple cores 2494 within a MIPS Coherent Processing System. When this option is 2495 enabled the kernel will probe for other cores and boot them with 2496 no external assistance. It is safe to enable this when hardware 2497 support is unavailable. 2498 2499config MIPS_CPS_PM 2500 depends on MIPS_CPS 2501 bool 2502 2503config MIPS_CM 2504 bool 2505 select MIPS_CPC 2506 2507config MIPS_CPC 2508 bool 2509 2510config SB1_PASS_2_WORKAROUNDS 2511 bool 2512 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2513 default y 2514 2515config SB1_PASS_2_1_WORKAROUNDS 2516 bool 2517 depends on CPU_SB1 && CPU_SB1_PASS_2 2518 default y 2519 2520choice 2521 prompt "SmartMIPS or microMIPS ASE support" 2522 2523config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2524 bool "None" 2525 help 2526 Select this if you want neither microMIPS nor SmartMIPS support 2527 2528config CPU_HAS_SMARTMIPS 2529 depends on SYS_SUPPORTS_SMARTMIPS 2530 bool "SmartMIPS" 2531 help 2532 SmartMIPS is a extension of the MIPS32 architecture aimed at 2533 increased security at both hardware and software level for 2534 smartcards. Enabling this option will allow proper use of the 2535 SmartMIPS instructions by Linux applications. However a kernel with 2536 this option will not work on a MIPS core without SmartMIPS core. If 2537 you don't know you probably don't have SmartMIPS and should say N 2538 here. 2539 2540config CPU_MICROMIPS 2541 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2542 bool "microMIPS" 2543 help 2544 When this option is enabled the kernel will be built using the 2545 microMIPS ISA 2546 2547endchoice 2548 2549config CPU_HAS_MSA 2550 bool "Support for the MIPS SIMD Architecture" 2551 depends on CPU_SUPPORTS_MSA 2552 depends on MIPS_FP_SUPPORT 2553 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2554 help 2555 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2556 and a set of SIMD instructions to operate on them. When this option 2557 is enabled the kernel will support allocating & switching MSA 2558 vector register contexts. If you know that your kernel will only be 2559 running on CPUs which do not support MSA or that your userland will 2560 not be making use of it then you may wish to say N here to reduce 2561 the size & complexity of your kernel. 2562 2563 If unsure, say Y. 2564 2565config CPU_HAS_WB 2566 bool 2567 2568config XKS01 2569 bool 2570 2571config CPU_HAS_DIEI 2572 depends on !CPU_DIEI_BROKEN 2573 bool 2574 2575config CPU_DIEI_BROKEN 2576 bool 2577 2578config CPU_HAS_RIXI 2579 bool 2580 2581config CPU_NO_LOAD_STORE_LR 2582 bool 2583 help 2584 CPU lacks support for unaligned load and store instructions: 2585 LWL, LWR, SWL, SWR (Load/store word left/right). 2586 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2587 systems). 2588 2589# 2590# Vectored interrupt mode is an R2 feature 2591# 2592config CPU_MIPSR2_IRQ_VI 2593 bool 2594 2595# 2596# Extended interrupt mode is an R2 feature 2597# 2598config CPU_MIPSR2_IRQ_EI 2599 bool 2600 2601config CPU_HAS_SYNC 2602 bool 2603 depends on !CPU_R3000 2604 default y 2605 2606# 2607# CPU non-features 2608# 2609config CPU_DADDI_WORKAROUNDS 2610 bool 2611 2612config CPU_R4000_WORKAROUNDS 2613 bool 2614 select CPU_R4400_WORKAROUNDS 2615 2616config CPU_R4400_WORKAROUNDS 2617 bool 2618 2619config CPU_R4X00_BUGS64 2620 bool 2621 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2622 2623config MIPS_ASID_SHIFT 2624 int 2625 default 6 if CPU_R3000 || CPU_TX39XX 2626 default 0 2627 2628config MIPS_ASID_BITS 2629 int 2630 default 0 if MIPS_ASID_BITS_VARIABLE 2631 default 6 if CPU_R3000 || CPU_TX39XX 2632 default 8 2633 2634config MIPS_ASID_BITS_VARIABLE 2635 bool 2636 2637config MIPS_CRC_SUPPORT 2638 bool 2639 2640# 2641# - Highmem only makes sense for the 32-bit kernel. 2642# - The current highmem code will only work properly on physically indexed 2643# caches such as R3000, SB1, R7000 or those that look like they're virtually 2644# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2645# moment we protect the user and offer the highmem option only on machines 2646# where it's known to be safe. This will not offer highmem on a few systems 2647# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2648# indexed CPUs but we're playing safe. 2649# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2650# know they might have memory configurations that could make use of highmem 2651# support. 2652# 2653config HIGHMEM 2654 bool "High Memory Support" 2655 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2656 2657config CPU_SUPPORTS_HIGHMEM 2658 bool 2659 2660config SYS_SUPPORTS_HIGHMEM 2661 bool 2662 2663config SYS_SUPPORTS_SMARTMIPS 2664 bool 2665 2666config SYS_SUPPORTS_MICROMIPS 2667 bool 2668 2669config SYS_SUPPORTS_MIPS16 2670 bool 2671 help 2672 This option must be set if a kernel might be executed on a MIPS16- 2673 enabled CPU even if MIPS16 is not actually being used. In other 2674 words, it makes the kernel MIPS16-tolerant. 2675 2676config CPU_SUPPORTS_MSA 2677 bool 2678 2679config ARCH_FLATMEM_ENABLE 2680 def_bool y 2681 depends on !NUMA && !CPU_LOONGSON2EF 2682 2683config ARCH_SPARSEMEM_ENABLE 2684 bool 2685 select SPARSEMEM_STATIC if !SGI_IP27 2686 2687config NUMA 2688 bool "NUMA Support" 2689 depends on SYS_SUPPORTS_NUMA 2690 help 2691 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2692 Access). This option improves performance on systems with more 2693 than two nodes; on two node systems it is generally better to 2694 leave it disabled; on single node systems leave this option 2695 disabled. 2696 2697config SYS_SUPPORTS_NUMA 2698 bool 2699 2700config HAVE_SETUP_PER_CPU_AREA 2701 def_bool y 2702 depends on NUMA 2703 2704config NEED_PER_CPU_EMBED_FIRST_CHUNK 2705 def_bool y 2706 depends on NUMA 2707 2708config RELOCATABLE 2709 bool "Relocatable kernel" 2710 depends on SYS_SUPPORTS_RELOCATABLE 2711 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2712 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2713 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2714 CPU_P5600 || CAVIUM_OCTEON_SOC 2715 help 2716 This builds a kernel image that retains relocation information 2717 so it can be loaded someplace besides the default 1MB. 2718 The relocations make the kernel binary about 15% larger, 2719 but are discarded at runtime 2720 2721config RELOCATION_TABLE_SIZE 2722 hex "Relocation table size" 2723 depends on RELOCATABLE 2724 range 0x0 0x01000000 2725 default "0x00100000" 2726 help 2727 A table of relocation data will be appended to the kernel binary 2728 and parsed at boot to fix up the relocated kernel. 2729 2730 This option allows the amount of space reserved for the table to be 2731 adjusted, although the default of 1Mb should be ok in most cases. 2732 2733 The build will fail and a valid size suggested if this is too small. 2734 2735 If unsure, leave at the default value. 2736 2737config RANDOMIZE_BASE 2738 bool "Randomize the address of the kernel image" 2739 depends on RELOCATABLE 2740 help 2741 Randomizes the physical and virtual address at which the 2742 kernel image is loaded, as a security feature that 2743 deters exploit attempts relying on knowledge of the location 2744 of kernel internals. 2745 2746 Entropy is generated using any coprocessor 0 registers available. 2747 2748 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2749 2750 If unsure, say N. 2751 2752config RANDOMIZE_BASE_MAX_OFFSET 2753 hex "Maximum kASLR offset" if EXPERT 2754 depends on RANDOMIZE_BASE 2755 range 0x0 0x40000000 if EVA || 64BIT 2756 range 0x0 0x08000000 2757 default "0x01000000" 2758 help 2759 When kASLR is active, this provides the maximum offset that will 2760 be applied to the kernel image. It should be set according to the 2761 amount of physical RAM available in the target system minus 2762 PHYSICAL_START and must be a power of 2. 2763 2764 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2765 EVA or 64-bit. The default is 16Mb. 2766 2767config NODES_SHIFT 2768 int 2769 default "6" 2770 depends on NEED_MULTIPLE_NODES 2771 2772config HW_PERF_EVENTS 2773 bool "Enable hardware performance counter support for perf events" 2774 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2775 default y 2776 help 2777 Enable hardware performance counter support for perf events. If 2778 disabled, perf events will use software events only. 2779 2780config DMI 2781 bool "Enable DMI scanning" 2782 depends on MACH_LOONGSON64 2783 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2784 default y 2785 help 2786 Enabled scanning of DMI to identify machine quirks. Say Y 2787 here unless you have verified that your setup is not 2788 affected by entries in the DMI blacklist. Required by PNP 2789 BIOS code. 2790 2791config SMP 2792 bool "Multi-Processing support" 2793 depends on SYS_SUPPORTS_SMP 2794 help 2795 This enables support for systems with more than one CPU. If you have 2796 a system with only one CPU, say N. If you have a system with more 2797 than one CPU, say Y. 2798 2799 If you say N here, the kernel will run on uni- and multiprocessor 2800 machines, but will use only one CPU of a multiprocessor machine. If 2801 you say Y here, the kernel will run on many, but not all, 2802 uniprocessor machines. On a uniprocessor machine, the kernel 2803 will run faster if you say N here. 2804 2805 People using multiprocessor machines who say Y here should also say 2806 Y to "Enhanced Real Time Clock Support", below. 2807 2808 See also the SMP-HOWTO available at 2809 <https://www.tldp.org/docs.html#howto>. 2810 2811 If you don't know what to do here, say N. 2812 2813config HOTPLUG_CPU 2814 bool "Support for hot-pluggable CPUs" 2815 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2816 help 2817 Say Y here to allow turning CPUs off and on. CPUs can be 2818 controlled through /sys/devices/system/cpu. 2819 (Note: power management support will enable this option 2820 automatically on SMP systems. ) 2821 Say N if you want to disable CPU hotplug. 2822 2823config SMP_UP 2824 bool 2825 2826config SYS_SUPPORTS_MIPS_CMP 2827 bool 2828 2829config SYS_SUPPORTS_MIPS_CPS 2830 bool 2831 2832config SYS_SUPPORTS_SMP 2833 bool 2834 2835config NR_CPUS_DEFAULT_4 2836 bool 2837 2838config NR_CPUS_DEFAULT_8 2839 bool 2840 2841config NR_CPUS_DEFAULT_16 2842 bool 2843 2844config NR_CPUS_DEFAULT_32 2845 bool 2846 2847config NR_CPUS_DEFAULT_64 2848 bool 2849 2850config NR_CPUS 2851 int "Maximum number of CPUs (2-256)" 2852 range 2 256 2853 depends on SMP 2854 default "4" if NR_CPUS_DEFAULT_4 2855 default "8" if NR_CPUS_DEFAULT_8 2856 default "16" if NR_CPUS_DEFAULT_16 2857 default "32" if NR_CPUS_DEFAULT_32 2858 default "64" if NR_CPUS_DEFAULT_64 2859 help 2860 This allows you to specify the maximum number of CPUs which this 2861 kernel will support. The maximum supported value is 32 for 32-bit 2862 kernel and 64 for 64-bit kernels; the minimum value which makes 2863 sense is 1 for Qemu (useful only for kernel debugging purposes) 2864 and 2 for all others. 2865 2866 This is purely to save memory - each supported CPU adds 2867 approximately eight kilobytes to the kernel image. For best 2868 performance should round up your number of processors to the next 2869 power of two. 2870 2871config MIPS_PERF_SHARED_TC_COUNTERS 2872 bool 2873 2874config MIPS_NR_CPU_NR_MAP_1024 2875 bool 2876 2877config MIPS_NR_CPU_NR_MAP 2878 int 2879 depends on SMP 2880 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2881 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2882 2883# 2884# Timer Interrupt Frequency Configuration 2885# 2886 2887choice 2888 prompt "Timer frequency" 2889 default HZ_250 2890 help 2891 Allows the configuration of the timer frequency. 2892 2893 config HZ_24 2894 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2895 2896 config HZ_48 2897 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2898 2899 config HZ_100 2900 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2901 2902 config HZ_128 2903 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2904 2905 config HZ_250 2906 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2907 2908 config HZ_256 2909 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2910 2911 config HZ_1000 2912 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2913 2914 config HZ_1024 2915 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2916 2917endchoice 2918 2919config SYS_SUPPORTS_24HZ 2920 bool 2921 2922config SYS_SUPPORTS_48HZ 2923 bool 2924 2925config SYS_SUPPORTS_100HZ 2926 bool 2927 2928config SYS_SUPPORTS_128HZ 2929 bool 2930 2931config SYS_SUPPORTS_250HZ 2932 bool 2933 2934config SYS_SUPPORTS_256HZ 2935 bool 2936 2937config SYS_SUPPORTS_1000HZ 2938 bool 2939 2940config SYS_SUPPORTS_1024HZ 2941 bool 2942 2943config SYS_SUPPORTS_ARBIT_HZ 2944 bool 2945 default y if !SYS_SUPPORTS_24HZ && \ 2946 !SYS_SUPPORTS_48HZ && \ 2947 !SYS_SUPPORTS_100HZ && \ 2948 !SYS_SUPPORTS_128HZ && \ 2949 !SYS_SUPPORTS_250HZ && \ 2950 !SYS_SUPPORTS_256HZ && \ 2951 !SYS_SUPPORTS_1000HZ && \ 2952 !SYS_SUPPORTS_1024HZ 2953 2954config HZ 2955 int 2956 default 24 if HZ_24 2957 default 48 if HZ_48 2958 default 100 if HZ_100 2959 default 128 if HZ_128 2960 default 250 if HZ_250 2961 default 256 if HZ_256 2962 default 1000 if HZ_1000 2963 default 1024 if HZ_1024 2964 2965config SCHED_HRTICK 2966 def_bool HIGH_RES_TIMERS 2967 2968config KEXEC 2969 bool "Kexec system call" 2970 select KEXEC_CORE 2971 help 2972 kexec is a system call that implements the ability to shutdown your 2973 current kernel, and to start another kernel. It is like a reboot 2974 but it is independent of the system firmware. And like a reboot 2975 you can start any kernel with it, not just Linux. 2976 2977 The name comes from the similarity to the exec system call. 2978 2979 It is an ongoing process to be certain the hardware in a machine 2980 is properly shutdown, so do not be surprised if this code does not 2981 initially work for you. As of this writing the exact hardware 2982 interface is strongly in flux, so no good recommendation can be 2983 made. 2984 2985config CRASH_DUMP 2986 bool "Kernel crash dumps" 2987 help 2988 Generate crash dump after being started by kexec. 2989 This should be normally only set in special crash dump kernels 2990 which are loaded in the main kernel with kexec-tools into 2991 a specially reserved region and then later executed after 2992 a crash by kdump/kexec. The crash dump kernel must be compiled 2993 to a memory address not used by the main kernel or firmware using 2994 PHYSICAL_START. 2995 2996config PHYSICAL_START 2997 hex "Physical address where the kernel is loaded" 2998 default "0xffffffff84000000" 2999 depends on CRASH_DUMP 3000 help 3001 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3002 If you plan to use kernel for capturing the crash dump change 3003 this value to start of the reserved region (the "X" value as 3004 specified in the "crashkernel=YM@XM" command line boot parameter 3005 passed to the panic-ed kernel). 3006 3007config SECCOMP 3008 bool "Enable seccomp to safely compute untrusted bytecode" 3009 depends on PROC_FS 3010 default y 3011 help 3012 This kernel feature is useful for number crunching applications 3013 that may need to compute untrusted bytecode during their 3014 execution. By using pipes or other transports made available to 3015 the process as file descriptors supporting the read/write 3016 syscalls, it's possible to isolate those applications in 3017 their own address space using seccomp. Once seccomp is 3018 enabled via /proc/<pid>/seccomp, it cannot be disabled 3019 and the task is only allowed to execute a few safe syscalls 3020 defined by each seccomp mode. 3021 3022 If unsure, say Y. Only embedded should say N here. 3023 3024config MIPS_O32_FP64_SUPPORT 3025 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3026 depends on 32BIT || MIPS32_O32 3027 help 3028 When this is enabled, the kernel will support use of 64-bit floating 3029 point registers with binaries using the O32 ABI along with the 3030 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3031 32-bit MIPS systems this support is at the cost of increasing the 3032 size and complexity of the compiled FPU emulator. Thus if you are 3033 running a MIPS32 system and know that none of your userland binaries 3034 will require 64-bit floating point, you may wish to reduce the size 3035 of your kernel & potentially improve FP emulation performance by 3036 saying N here. 3037 3038 Although binutils currently supports use of this flag the details 3039 concerning its effect upon the O32 ABI in userland are still being 3040 worked on. In order to avoid userland becoming dependant upon current 3041 behaviour before the details have been finalised, this option should 3042 be considered experimental and only enabled by those working upon 3043 said details. 3044 3045 If unsure, say N. 3046 3047config USE_OF 3048 bool 3049 select OF 3050 select OF_EARLY_FLATTREE 3051 select IRQ_DOMAIN 3052 3053config UHI_BOOT 3054 bool 3055 3056config BUILTIN_DTB 3057 bool 3058 3059choice 3060 prompt "Kernel appended dtb support" if USE_OF 3061 default MIPS_NO_APPENDED_DTB 3062 3063 config MIPS_NO_APPENDED_DTB 3064 bool "None" 3065 help 3066 Do not enable appended dtb support. 3067 3068 config MIPS_ELF_APPENDED_DTB 3069 bool "vmlinux" 3070 help 3071 With this option, the boot code will look for a device tree binary 3072 DTB) included in the vmlinux ELF section .appended_dtb. By default 3073 it is empty and the DTB can be appended using binutils command 3074 objcopy: 3075 3076 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3077 3078 This is meant as a backward compatiblity convenience for those 3079 systems with a bootloader that can't be upgraded to accommodate 3080 the documented boot protocol using a device tree. 3081 3082 config MIPS_RAW_APPENDED_DTB 3083 bool "vmlinux.bin or vmlinuz.bin" 3084 help 3085 With this option, the boot code will look for a device tree binary 3086 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3087 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3088 3089 This is meant as a backward compatibility convenience for those 3090 systems with a bootloader that can't be upgraded to accommodate 3091 the documented boot protocol using a device tree. 3092 3093 Beware that there is very little in terms of protection against 3094 this option being confused by leftover garbage in memory that might 3095 look like a DTB header after a reboot if no actual DTB is appended 3096 to vmlinux.bin. Do not leave this option active in a production kernel 3097 if you don't intend to always append a DTB. 3098endchoice 3099 3100choice 3101 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3102 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3103 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3104 !CAVIUM_OCTEON_SOC 3105 default MIPS_CMDLINE_FROM_BOOTLOADER 3106 3107 config MIPS_CMDLINE_FROM_DTB 3108 depends on USE_OF 3109 bool "Dtb kernel arguments if available" 3110 3111 config MIPS_CMDLINE_DTB_EXTEND 3112 depends on USE_OF 3113 bool "Extend dtb kernel arguments with bootloader arguments" 3114 3115 config MIPS_CMDLINE_FROM_BOOTLOADER 3116 bool "Bootloader kernel arguments if available" 3117 3118 config MIPS_CMDLINE_BUILTIN_EXTEND 3119 depends on CMDLINE_BOOL 3120 bool "Extend builtin kernel arguments with bootloader arguments" 3121endchoice 3122 3123endmenu 3124 3125config LOCKDEP_SUPPORT 3126 bool 3127 default y 3128 3129config STACKTRACE_SUPPORT 3130 bool 3131 default y 3132 3133config PGTABLE_LEVELS 3134 int 3135 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3136 default 3 if 64BIT && !PAGE_SIZE_64KB 3137 default 2 3138 3139config MIPS_AUTO_PFN_OFFSET 3140 bool 3141 3142menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3143 3144config PCI_DRIVERS_GENERIC 3145 select PCI_DOMAINS_GENERIC if PCI 3146 bool 3147 3148config PCI_DRIVERS_LEGACY 3149 def_bool !PCI_DRIVERS_GENERIC 3150 select NO_GENERIC_PCI_IOPORT_MAP 3151 select PCI_DOMAINS if PCI 3152 3153# 3154# ISA support is now enabled via select. Too many systems still have the one 3155# or other ISA chip on the board that users don't know about so don't expect 3156# users to choose the right thing ... 3157# 3158config ISA 3159 bool 3160 3161config TC 3162 bool "TURBOchannel support" 3163 depends on MACH_DECSTATION 3164 help 3165 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3166 processors. TURBOchannel programming specifications are available 3167 at: 3168 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3169 and: 3170 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3171 Linux driver support status is documented at: 3172 <http://www.linux-mips.org/wiki/DECstation> 3173 3174config MMU 3175 bool 3176 default y 3177 3178config ARCH_MMAP_RND_BITS_MIN 3179 default 12 if 64BIT 3180 default 8 3181 3182config ARCH_MMAP_RND_BITS_MAX 3183 default 18 if 64BIT 3184 default 15 3185 3186config ARCH_MMAP_RND_COMPAT_BITS_MIN 3187 default 8 3188 3189config ARCH_MMAP_RND_COMPAT_BITS_MAX 3190 default 15 3191 3192config I8253 3193 bool 3194 select CLKSRC_I8253 3195 select CLKEVT_I8253 3196 select MIPS_EXTERNAL_TIMER 3197 3198config ZONE_DMA 3199 bool 3200 3201config ZONE_DMA32 3202 bool 3203 3204endmenu 3205 3206config TRAD_SIGNALS 3207 bool 3208 3209config MIPS32_COMPAT 3210 bool 3211 3212config COMPAT 3213 bool 3214 3215config SYSVIPC_COMPAT 3216 bool 3217 3218config MIPS32_O32 3219 bool "Kernel support for o32 binaries" 3220 depends on 64BIT 3221 select ARCH_WANT_OLD_COMPAT_IPC 3222 select COMPAT 3223 select MIPS32_COMPAT 3224 select SYSVIPC_COMPAT if SYSVIPC 3225 help 3226 Select this option if you want to run o32 binaries. These are pure 3227 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3228 existing binaries are in this format. 3229 3230 If unsure, say Y. 3231 3232config MIPS32_N32 3233 bool "Kernel support for n32 binaries" 3234 depends on 64BIT 3235 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3236 select COMPAT 3237 select MIPS32_COMPAT 3238 select SYSVIPC_COMPAT if SYSVIPC 3239 help 3240 Select this option if you want to run n32 binaries. These are 3241 64-bit binaries using 32-bit quantities for addressing and certain 3242 data that would normally be 64-bit. They are used in special 3243 cases. 3244 3245 If unsure, say N. 3246 3247config BINFMT_ELF32 3248 bool 3249 default y if MIPS32_O32 || MIPS32_N32 3250 select ELFCORE 3251 3252menu "Power management options" 3253 3254config ARCH_HIBERNATION_POSSIBLE 3255 def_bool y 3256 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3257 3258config ARCH_SUSPEND_POSSIBLE 3259 def_bool y 3260 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3261 3262source "kernel/power/Kconfig" 3263 3264endmenu 3265 3266config MIPS_EXTERNAL_TIMER 3267 bool 3268 3269menu "CPU Power Management" 3270 3271if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3272source "drivers/cpufreq/Kconfig" 3273endif 3274 3275source "drivers/cpuidle/Kconfig" 3276 3277endmenu 3278 3279source "drivers/firmware/Kconfig" 3280 3281source "arch/mips/kvm/Kconfig" 3282 3283source "arch/mips/vdso/Kconfig" 3284