1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV 9 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 10 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 11 select ARCH_HAS_UBSAN_SANITIZE_ALL 12 select ARCH_SUPPORTS_UPROBES 13 select ARCH_USE_BUILTIN_BSWAP 14 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 15 select ARCH_USE_QUEUED_RWLOCKS 16 select ARCH_USE_QUEUED_SPINLOCKS 17 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 18 select ARCH_WANT_IPC_PARSE_VERSION 19 select BUILDTIME_TABLE_SORT 20 select CLONE_BACKWARDS 21 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 22 select CPU_PM if CPU_IDLE 23 select GENERIC_ATOMIC64 if !64BIT 24 select GENERIC_CLOCKEVENTS 25 select GENERIC_CMOS_UPDATE 26 select GENERIC_CPU_AUTOPROBE 27 select GENERIC_GETTIMEOFDAY 28 select GENERIC_IOMAP 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_ISA_DMA if EISA 32 select GENERIC_LIB_ASHLDI3 33 select GENERIC_LIB_ASHRDI3 34 select GENERIC_LIB_CMPDI2 35 select GENERIC_LIB_LSHRDI3 36 select GENERIC_LIB_UCMPDI2 37 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 38 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_TIME_VSYSCALL 40 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 41 select HANDLE_DOMAIN_IRQ 42 select HAVE_ARCH_COMPILER_H 43 select HAVE_ARCH_JUMP_LABEL 44 select HAVE_ARCH_KGDB 45 select HAVE_ARCH_MMAP_RND_BITS if MMU 46 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 47 select HAVE_ARCH_SECCOMP_FILTER 48 select HAVE_ARCH_TRACEHOOK 49 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 50 select HAVE_ASM_MODVERSIONS 51 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 52 select HAVE_CONTEXT_TRACKING 53 select HAVE_TIF_NOHZ 54 select HAVE_C_RECORDMCOUNT 55 select HAVE_DEBUG_KMEMLEAK 56 select HAVE_DEBUG_STACKOVERFLOW 57 select HAVE_DMA_CONTIGUOUS 58 select HAVE_DYNAMIC_FTRACE 59 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 60 select HAVE_EXIT_THREAD 61 select HAVE_FAST_GUP 62 select HAVE_FTRACE_MCOUNT_RECORD 63 select HAVE_FUNCTION_GRAPH_TRACER 64 select HAVE_FUNCTION_TRACER 65 select HAVE_GCC_PLUGINS 66 select HAVE_GENERIC_VDSO 67 select HAVE_IDE 68 select HAVE_IOREMAP_PROT 69 select HAVE_IRQ_EXIT_ON_IRQ_STACK 70 select HAVE_IRQ_TIME_ACCOUNTING 71 select HAVE_KPROBES 72 select HAVE_KRETPROBES 73 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 74 select HAVE_MOD_ARCH_SPECIFIC 75 select HAVE_NMI 76 select HAVE_OPROFILE 77 select HAVE_PERF_EVENTS 78 select HAVE_REGS_AND_STACK_ACCESS_API 79 select HAVE_RSEQ 80 select HAVE_SPARSE_SYSCALL_NR 81 select HAVE_STACKPROTECTOR 82 select HAVE_SYSCALL_TRACEPOINTS 83 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 84 select IRQ_FORCED_THREADING 85 select ISA if EISA 86 select MODULES_USE_ELF_REL if MODULES 87 select MODULES_USE_ELF_RELA if MODULES && 64BIT 88 select PERF_USE_VMALLOC 89 select RTC_LIB 90 select SYSCTL_EXCEPTION_TRACE 91 select VIRT_TO_BUS 92 93config MIPS_FIXUP_BIGPHYS_ADDR 94 bool 95 96menu "Machine selection" 97 98choice 99 prompt "System type" 100 default MIPS_GENERIC 101 102config MIPS_GENERIC 103 bool "Generic board-agnostic MIPS kernel" 104 select BOOT_RAW 105 select BUILTIN_DTB 106 select CEVT_R4K 107 select CLKSRC_MIPS_GIC 108 select COMMON_CLK 109 select CPU_MIPSR2_IRQ_EI 110 select CPU_MIPSR2_IRQ_VI 111 select CSRC_R4K 112 select DMA_PERDEV_COHERENT 113 select HAVE_PCI 114 select IRQ_MIPS_CPU 115 select MIPS_AUTO_PFN_OFFSET 116 select MIPS_CPU_SCACHE 117 select MIPS_GIC 118 select MIPS_L1_CACHE_SHIFT_7 119 select NO_EXCEPT_FILL 120 select PCI_DRIVERS_GENERIC 121 select SMP_UP if SMP 122 select SWAP_IO_SPACE 123 select SYS_HAS_CPU_MIPS32_R1 124 select SYS_HAS_CPU_MIPS32_R2 125 select SYS_HAS_CPU_MIPS32_R6 126 select SYS_HAS_CPU_MIPS64_R1 127 select SYS_HAS_CPU_MIPS64_R2 128 select SYS_HAS_CPU_MIPS64_R6 129 select SYS_SUPPORTS_32BIT_KERNEL 130 select SYS_SUPPORTS_64BIT_KERNEL 131 select SYS_SUPPORTS_BIG_ENDIAN 132 select SYS_SUPPORTS_HIGHMEM 133 select SYS_SUPPORTS_LITTLE_ENDIAN 134 select SYS_SUPPORTS_MICROMIPS 135 select SYS_SUPPORTS_MIPS16 136 select SYS_SUPPORTS_MIPS_CPS 137 select SYS_SUPPORTS_MULTITHREADING 138 select SYS_SUPPORTS_RELOCATABLE 139 select SYS_SUPPORTS_SMARTMIPS 140 select UHI_BOOT 141 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 142 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 143 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 144 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 145 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 146 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 147 select USE_OF 148 help 149 Select this to build a kernel which aims to support multiple boards, 150 generally using a flattened device tree passed from the bootloader 151 using the boot protocol defined in the UHI (Unified Hosting 152 Interface) specification. 153 154config MIPS_ALCHEMY 155 bool "Alchemy processor based machines" 156 select PHYS_ADDR_T_64BIT 157 select CEVT_R4K 158 select CSRC_R4K 159 select IRQ_MIPS_CPU 160 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 161 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 162 select SYS_HAS_CPU_MIPS32_R1 163 select SYS_SUPPORTS_32BIT_KERNEL 164 select SYS_SUPPORTS_APM_EMULATION 165 select GPIOLIB 166 select SYS_SUPPORTS_ZBOOT 167 select COMMON_CLK 168 169config AR7 170 bool "Texas Instruments AR7" 171 select BOOT_ELF32 172 select DMA_NONCOHERENT 173 select CEVT_R4K 174 select CSRC_R4K 175 select IRQ_MIPS_CPU 176 select NO_EXCEPT_FILL 177 select SWAP_IO_SPACE 178 select SYS_HAS_CPU_MIPS32_R1 179 select SYS_HAS_EARLY_PRINTK 180 select SYS_SUPPORTS_32BIT_KERNEL 181 select SYS_SUPPORTS_LITTLE_ENDIAN 182 select SYS_SUPPORTS_MIPS16 183 select SYS_SUPPORTS_ZBOOT_UART16550 184 select GPIOLIB 185 select VLYNQ 186 select HAVE_LEGACY_CLK 187 help 188 Support for the Texas Instruments AR7 System-on-a-Chip 189 family: TNETD7100, 7200 and 7300. 190 191config ATH25 192 bool "Atheros AR231x/AR531x SoC support" 193 select CEVT_R4K 194 select CSRC_R4K 195 select DMA_NONCOHERENT 196 select IRQ_MIPS_CPU 197 select IRQ_DOMAIN 198 select SYS_HAS_CPU_MIPS32_R1 199 select SYS_SUPPORTS_BIG_ENDIAN 200 select SYS_SUPPORTS_32BIT_KERNEL 201 select SYS_HAS_EARLY_PRINTK 202 help 203 Support for Atheros AR231x and Atheros AR531x based boards 204 205config ATH79 206 bool "Atheros AR71XX/AR724X/AR913X based boards" 207 select ARCH_HAS_RESET_CONTROLLER 208 select BOOT_RAW 209 select CEVT_R4K 210 select CSRC_R4K 211 select DMA_NONCOHERENT 212 select GPIOLIB 213 select PINCTRL 214 select COMMON_CLK 215 select IRQ_MIPS_CPU 216 select SYS_HAS_CPU_MIPS32_R2 217 select SYS_HAS_EARLY_PRINTK 218 select SYS_SUPPORTS_32BIT_KERNEL 219 select SYS_SUPPORTS_BIG_ENDIAN 220 select SYS_SUPPORTS_MIPS16 221 select SYS_SUPPORTS_ZBOOT_UART_PROM 222 select USE_OF 223 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 224 help 225 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 226 227config BMIPS_GENERIC 228 bool "Broadcom Generic BMIPS kernel" 229 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 230 select ARCH_HAS_PHYS_TO_DMA 231 select BOOT_RAW 232 select NO_EXCEPT_FILL 233 select USE_OF 234 select CEVT_R4K 235 select CSRC_R4K 236 select SYNC_R4K 237 select COMMON_CLK 238 select BCM6345_L1_IRQ 239 select BCM7038_L1_IRQ 240 select BCM7120_L2_IRQ 241 select BRCMSTB_L2_IRQ 242 select IRQ_MIPS_CPU 243 select DMA_NONCOHERENT 244 select SYS_SUPPORTS_32BIT_KERNEL 245 select SYS_SUPPORTS_LITTLE_ENDIAN 246 select SYS_SUPPORTS_BIG_ENDIAN 247 select SYS_SUPPORTS_HIGHMEM 248 select SYS_HAS_CPU_BMIPS32_3300 249 select SYS_HAS_CPU_BMIPS4350 250 select SYS_HAS_CPU_BMIPS4380 251 select SYS_HAS_CPU_BMIPS5000 252 select SWAP_IO_SPACE 253 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 254 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 255 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 256 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 257 select HARDIRQS_SW_RESEND 258 help 259 Build a generic DT-based kernel image that boots on select 260 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 261 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 262 must be set appropriately for your board. 263 264config BCM47XX 265 bool "Broadcom BCM47XX based boards" 266 select BOOT_RAW 267 select CEVT_R4K 268 select CSRC_R4K 269 select DMA_NONCOHERENT 270 select HAVE_PCI 271 select IRQ_MIPS_CPU 272 select SYS_HAS_CPU_MIPS32_R1 273 select NO_EXCEPT_FILL 274 select SYS_SUPPORTS_32BIT_KERNEL 275 select SYS_SUPPORTS_LITTLE_ENDIAN 276 select SYS_SUPPORTS_MIPS16 277 select SYS_SUPPORTS_ZBOOT 278 select SYS_HAS_EARLY_PRINTK 279 select USE_GENERIC_EARLY_PRINTK_8250 280 select GPIOLIB 281 select LEDS_GPIO_REGISTER 282 select BCM47XX_NVRAM 283 select BCM47XX_SPROM 284 select BCM47XX_SSB if !BCM47XX_BCMA 285 help 286 Support for BCM47XX based boards 287 288config BCM63XX 289 bool "Broadcom BCM63XX based boards" 290 select BOOT_RAW 291 select CEVT_R4K 292 select CSRC_R4K 293 select SYNC_R4K 294 select DMA_NONCOHERENT 295 select IRQ_MIPS_CPU 296 select SYS_SUPPORTS_32BIT_KERNEL 297 select SYS_SUPPORTS_BIG_ENDIAN 298 select SYS_HAS_EARLY_PRINTK 299 select SWAP_IO_SPACE 300 select GPIOLIB 301 select MIPS_L1_CACHE_SHIFT_4 302 select CLKDEV_LOOKUP 303 select HAVE_LEGACY_CLK 304 help 305 Support for BCM63XX based boards 306 307config MIPS_COBALT 308 bool "Cobalt Server" 309 select CEVT_R4K 310 select CSRC_R4K 311 select CEVT_GT641XX 312 select DMA_NONCOHERENT 313 select FORCE_PCI 314 select I8253 315 select I8259 316 select IRQ_MIPS_CPU 317 select IRQ_GT641XX 318 select PCI_GT64XXX_PCI0 319 select SYS_HAS_CPU_NEVADA 320 select SYS_HAS_EARLY_PRINTK 321 select SYS_SUPPORTS_32BIT_KERNEL 322 select SYS_SUPPORTS_64BIT_KERNEL 323 select SYS_SUPPORTS_LITTLE_ENDIAN 324 select USE_GENERIC_EARLY_PRINTK_8250 325 326config MACH_DECSTATION 327 bool "DECstations" 328 select BOOT_ELF32 329 select CEVT_DS1287 330 select CEVT_R4K if CPU_R4X00 331 select CSRC_IOASIC 332 select CSRC_R4K if CPU_R4X00 333 select CPU_DADDI_WORKAROUNDS if 64BIT 334 select CPU_R4000_WORKAROUNDS if 64BIT 335 select CPU_R4400_WORKAROUNDS if 64BIT 336 select DMA_NONCOHERENT 337 select NO_IOPORT_MAP 338 select IRQ_MIPS_CPU 339 select SYS_HAS_CPU_R3000 340 select SYS_HAS_CPU_R4X00 341 select SYS_SUPPORTS_32BIT_KERNEL 342 select SYS_SUPPORTS_64BIT_KERNEL 343 select SYS_SUPPORTS_LITTLE_ENDIAN 344 select SYS_SUPPORTS_128HZ 345 select SYS_SUPPORTS_256HZ 346 select SYS_SUPPORTS_1024HZ 347 select MIPS_L1_CACHE_SHIFT_4 348 help 349 This enables support for DEC's MIPS based workstations. For details 350 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 351 DECstation porting pages on <http://decstation.unix-ag.org/>. 352 353 If you have one of the following DECstation Models you definitely 354 want to choose R4xx0 for the CPU Type: 355 356 DECstation 5000/50 357 DECstation 5000/150 358 DECstation 5000/260 359 DECsystem 5900/260 360 361 otherwise choose R3000. 362 363config MACH_JAZZ 364 bool "Jazz family of machines" 365 select ARC_MEMORY 366 select ARC_PROMLIB 367 select ARCH_MIGHT_HAVE_PC_PARPORT 368 select ARCH_MIGHT_HAVE_PC_SERIO 369 select DMA_OPS 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 select PCI_HOST_GENERIC 482 help 483 This enables the support of Loongson-2/3 family of machines. 484 485 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 486 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 487 and Loongson-2F which will be removed), developed by the Institute 488 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 489 490config MACH_PISTACHIO 491 bool "IMG Pistachio SoC based boards" 492 select BOOT_ELF32 493 select BOOT_RAW 494 select CEVT_R4K 495 select CLKSRC_MIPS_GIC 496 select COMMON_CLK 497 select CSRC_R4K 498 select DMA_NONCOHERENT 499 select GPIOLIB 500 select IRQ_MIPS_CPU 501 select MFD_SYSCON 502 select MIPS_CPU_SCACHE 503 select MIPS_GIC 504 select PINCTRL 505 select REGULATOR 506 select SYS_HAS_CPU_MIPS32_R2 507 select SYS_SUPPORTS_32BIT_KERNEL 508 select SYS_SUPPORTS_LITTLE_ENDIAN 509 select SYS_SUPPORTS_MIPS_CPS 510 select SYS_SUPPORTS_MULTITHREADING 511 select SYS_SUPPORTS_RELOCATABLE 512 select SYS_SUPPORTS_ZBOOT 513 select SYS_HAS_EARLY_PRINTK 514 select USE_GENERIC_EARLY_PRINTK_8250 515 select USE_OF 516 help 517 This enables support for the IMG Pistachio SoC platform. 518 519config MIPS_MALTA 520 bool "MIPS Malta board" 521 select ARCH_MAY_HAVE_PC_FDC 522 select ARCH_MIGHT_HAVE_PC_PARPORT 523 select ARCH_MIGHT_HAVE_PC_SERIO 524 select BOOT_ELF32 525 select BOOT_RAW 526 select BUILTIN_DTB 527 select CEVT_R4K 528 select CLKSRC_MIPS_GIC 529 select COMMON_CLK 530 select CSRC_R4K 531 select DMA_MAYBE_COHERENT 532 select GENERIC_ISA_DMA 533 select HAVE_PCSPKR_PLATFORM 534 select HAVE_PCI 535 select I8253 536 select I8259 537 select IRQ_MIPS_CPU 538 select MIPS_BONITO64 539 select MIPS_CPU_SCACHE 540 select MIPS_GIC 541 select MIPS_L1_CACHE_SHIFT_6 542 select MIPS_MSC 543 select PCI_GT64XXX_PCI0 544 select SMP_UP if SMP 545 select SWAP_IO_SPACE 546 select SYS_HAS_CPU_MIPS32_R1 547 select SYS_HAS_CPU_MIPS32_R2 548 select SYS_HAS_CPU_MIPS32_R3_5 549 select SYS_HAS_CPU_MIPS32_R5 550 select SYS_HAS_CPU_MIPS32_R6 551 select SYS_HAS_CPU_MIPS64_R1 552 select SYS_HAS_CPU_MIPS64_R2 553 select SYS_HAS_CPU_MIPS64_R6 554 select SYS_HAS_CPU_NEVADA 555 select SYS_HAS_CPU_RM7000 556 select SYS_SUPPORTS_32BIT_KERNEL 557 select SYS_SUPPORTS_64BIT_KERNEL 558 select SYS_SUPPORTS_BIG_ENDIAN 559 select SYS_SUPPORTS_HIGHMEM 560 select SYS_SUPPORTS_LITTLE_ENDIAN 561 select SYS_SUPPORTS_MICROMIPS 562 select SYS_SUPPORTS_MIPS16 563 select SYS_SUPPORTS_MIPS_CMP 564 select SYS_SUPPORTS_MIPS_CPS 565 select SYS_SUPPORTS_MULTITHREADING 566 select SYS_SUPPORTS_RELOCATABLE 567 select SYS_SUPPORTS_SMARTMIPS 568 select SYS_SUPPORTS_VPE_LOADER 569 select SYS_SUPPORTS_ZBOOT 570 select USE_OF 571 select ZONE_DMA32 if 64BIT 572 help 573 This enables support for the MIPS Technologies Malta evaluation 574 board. 575 576config MACH_PIC32 577 bool "Microchip PIC32 Family" 578 help 579 This enables support for the Microchip PIC32 family of platforms. 580 581 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 582 microcontrollers. 583 584config MACH_VR41XX 585 bool "NEC VR4100 series based machines" 586 select CEVT_R4K 587 select CSRC_R4K 588 select SYS_HAS_CPU_VR41XX 589 select SYS_SUPPORTS_MIPS16 590 select GPIOLIB 591 592config NXP_STB220 593 bool "NXP STB220 board" 594 select SOC_PNX833X 595 help 596 Support for NXP Semiconductors STB220 Development Board. 597 598config NXP_STB225 599 bool "NXP 225 board" 600 select SOC_PNX833X 601 select SOC_PNX8335 602 help 603 Support for NXP Semiconductors STB225 Development Board. 604 605config RALINK 606 bool "Ralink based machines" 607 select CEVT_R4K 608 select CSRC_R4K 609 select BOOT_RAW 610 select DMA_NONCOHERENT 611 select IRQ_MIPS_CPU 612 select USE_OF 613 select SYS_HAS_CPU_MIPS32_R1 614 select SYS_HAS_CPU_MIPS32_R2 615 select SYS_SUPPORTS_32BIT_KERNEL 616 select SYS_SUPPORTS_LITTLE_ENDIAN 617 select SYS_SUPPORTS_MIPS16 618 select SYS_HAS_EARLY_PRINTK 619 select CLKDEV_LOOKUP 620 select ARCH_HAS_RESET_CONTROLLER 621 select RESET_CONTROLLER 622 623config SGI_IP22 624 bool "SGI IP22 (Indy/Indigo2)" 625 select ARC_MEMORY 626 select ARC_PROMLIB 627 select FW_ARC 628 select FW_ARC32 629 select ARCH_MIGHT_HAVE_PC_SERIO 630 select BOOT_ELF32 631 select CEVT_R4K 632 select CSRC_R4K 633 select DEFAULT_SGI_PARTITION 634 select DMA_NONCOHERENT 635 select HAVE_EISA 636 select I8253 637 select I8259 638 select IP22_CPU_SCACHE 639 select IRQ_MIPS_CPU 640 select GENERIC_ISA_DMA_SUPPORT_BROKEN 641 select SGI_HAS_I8042 642 select SGI_HAS_INDYDOG 643 select SGI_HAS_HAL2 644 select SGI_HAS_SEEQ 645 select SGI_HAS_WD93 646 select SGI_HAS_ZILOG 647 select SWAP_IO_SPACE 648 select SYS_HAS_CPU_R4X00 649 select SYS_HAS_CPU_R5000 650 select SYS_HAS_EARLY_PRINTK 651 select SYS_SUPPORTS_32BIT_KERNEL 652 select SYS_SUPPORTS_64BIT_KERNEL 653 select SYS_SUPPORTS_BIG_ENDIAN 654 select MIPS_L1_CACHE_SHIFT_7 655 help 656 This are the SGI Indy, Challenge S and Indigo2, as well as certain 657 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 658 that runs on these, say Y here. 659 660config SGI_IP27 661 bool "SGI IP27 (Origin200/2000)" 662 select ARCH_HAS_PHYS_TO_DMA 663 select ARCH_SPARSEMEM_ENABLE 664 select FW_ARC 665 select FW_ARC64 666 select ARC_CMDLINE_ONLY 667 select BOOT_ELF64 668 select DEFAULT_SGI_PARTITION 669 select SYS_HAS_EARLY_PRINTK 670 select HAVE_PCI 671 select IRQ_MIPS_CPU 672 select IRQ_DOMAIN_HIERARCHY 673 select NR_CPUS_DEFAULT_64 674 select PCI_DRIVERS_GENERIC 675 select PCI_XTALK_BRIDGE 676 select SYS_HAS_CPU_R10000 677 select SYS_SUPPORTS_64BIT_KERNEL 678 select SYS_SUPPORTS_BIG_ENDIAN 679 select SYS_SUPPORTS_NUMA 680 select SYS_SUPPORTS_SMP 681 select MIPS_L1_CACHE_SHIFT_7 682 select NUMA 683 help 684 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 685 workstations. To compile a Linux kernel that runs on these, say Y 686 here. 687 688config SGI_IP28 689 bool "SGI IP28 (Indigo2 R10k)" 690 select ARC_MEMORY 691 select ARC_PROMLIB 692 select FW_ARC 693 select FW_ARC64 694 select ARCH_MIGHT_HAVE_PC_SERIO 695 select BOOT_ELF64 696 select CEVT_R4K 697 select CSRC_R4K 698 select DEFAULT_SGI_PARTITION 699 select DMA_NONCOHERENT 700 select GENERIC_ISA_DMA_SUPPORT_BROKEN 701 select IRQ_MIPS_CPU 702 select HAVE_EISA 703 select I8253 704 select I8259 705 select SGI_HAS_I8042 706 select SGI_HAS_INDYDOG 707 select SGI_HAS_HAL2 708 select SGI_HAS_SEEQ 709 select SGI_HAS_WD93 710 select SGI_HAS_ZILOG 711 select SWAP_IO_SPACE 712 select SYS_HAS_CPU_R10000 713 select SYS_HAS_EARLY_PRINTK 714 select SYS_SUPPORTS_64BIT_KERNEL 715 select SYS_SUPPORTS_BIG_ENDIAN 716 select MIPS_L1_CACHE_SHIFT_7 717 help 718 This is the SGI Indigo2 with R10000 processor. To compile a Linux 719 kernel that runs on these, say Y here. 720 721config SGI_IP30 722 bool "SGI IP30 (Octane/Octane2)" 723 select ARCH_HAS_PHYS_TO_DMA 724 select FW_ARC 725 select FW_ARC64 726 select BOOT_ELF64 727 select CEVT_R4K 728 select CSRC_R4K 729 select SYNC_R4K if SMP 730 select ZONE_DMA32 731 select HAVE_PCI 732 select IRQ_MIPS_CPU 733 select IRQ_DOMAIN_HIERARCHY 734 select NR_CPUS_DEFAULT_2 735 select PCI_DRIVERS_GENERIC 736 select PCI_XTALK_BRIDGE 737 select SYS_HAS_EARLY_PRINTK 738 select SYS_HAS_CPU_R10000 739 select SYS_SUPPORTS_64BIT_KERNEL 740 select SYS_SUPPORTS_BIG_ENDIAN 741 select SYS_SUPPORTS_SMP 742 select MIPS_L1_CACHE_SHIFT_7 743 select ARC_MEMORY 744 help 745 These are the SGI Octane and Octane2 graphics workstations. To 746 compile a Linux kernel that runs on these, say Y here. 747 748config SGI_IP32 749 bool "SGI IP32 (O2)" 750 select ARC_MEMORY 751 select ARC_PROMLIB 752 select ARCH_HAS_PHYS_TO_DMA 753 select FW_ARC 754 select FW_ARC32 755 select BOOT_ELF32 756 select CEVT_R4K 757 select CSRC_R4K 758 select DMA_NONCOHERENT 759 select HAVE_PCI 760 select IRQ_MIPS_CPU 761 select R5000_CPU_SCACHE 762 select RM7000_CPU_SCACHE 763 select SYS_HAS_CPU_R5000 764 select SYS_HAS_CPU_R10000 if BROKEN 765 select SYS_HAS_CPU_RM7000 766 select SYS_HAS_CPU_NEVADA 767 select SYS_SUPPORTS_64BIT_KERNEL 768 select SYS_SUPPORTS_BIG_ENDIAN 769 help 770 If you want this kernel to run on SGI O2 workstation, say Y here. 771 772config SIBYTE_CRHINE 773 bool "Sibyte BCM91120C-CRhine" 774 select BOOT_ELF32 775 select SIBYTE_BCM1120 776 select SWAP_IO_SPACE 777 select SYS_HAS_CPU_SB1 778 select SYS_SUPPORTS_BIG_ENDIAN 779 select SYS_SUPPORTS_LITTLE_ENDIAN 780 781config SIBYTE_CARMEL 782 bool "Sibyte BCM91120x-Carmel" 783 select BOOT_ELF32 784 select SIBYTE_BCM1120 785 select SWAP_IO_SPACE 786 select SYS_HAS_CPU_SB1 787 select SYS_SUPPORTS_BIG_ENDIAN 788 select SYS_SUPPORTS_LITTLE_ENDIAN 789 790config SIBYTE_CRHONE 791 bool "Sibyte BCM91125C-CRhone" 792 select BOOT_ELF32 793 select SIBYTE_BCM1125 794 select SWAP_IO_SPACE 795 select SYS_HAS_CPU_SB1 796 select SYS_SUPPORTS_BIG_ENDIAN 797 select SYS_SUPPORTS_HIGHMEM 798 select SYS_SUPPORTS_LITTLE_ENDIAN 799 800config SIBYTE_RHONE 801 bool "Sibyte BCM91125E-Rhone" 802 select BOOT_ELF32 803 select SIBYTE_BCM1125H 804 select SWAP_IO_SPACE 805 select SYS_HAS_CPU_SB1 806 select SYS_SUPPORTS_BIG_ENDIAN 807 select SYS_SUPPORTS_LITTLE_ENDIAN 808 809config SIBYTE_SWARM 810 bool "Sibyte BCM91250A-SWARM" 811 select BOOT_ELF32 812 select HAVE_PATA_PLATFORM 813 select SIBYTE_SB1250 814 select SWAP_IO_SPACE 815 select SYS_HAS_CPU_SB1 816 select SYS_SUPPORTS_BIG_ENDIAN 817 select SYS_SUPPORTS_HIGHMEM 818 select SYS_SUPPORTS_LITTLE_ENDIAN 819 select ZONE_DMA32 if 64BIT 820 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 821 822config SIBYTE_LITTLESUR 823 bool "Sibyte BCM91250C2-LittleSur" 824 select BOOT_ELF32 825 select HAVE_PATA_PLATFORM 826 select SIBYTE_SB1250 827 select SWAP_IO_SPACE 828 select SYS_HAS_CPU_SB1 829 select SYS_SUPPORTS_BIG_ENDIAN 830 select SYS_SUPPORTS_HIGHMEM 831 select SYS_SUPPORTS_LITTLE_ENDIAN 832 select ZONE_DMA32 if 64BIT 833 834config SIBYTE_SENTOSA 835 bool "Sibyte BCM91250E-Sentosa" 836 select BOOT_ELF32 837 select SIBYTE_SB1250 838 select SWAP_IO_SPACE 839 select SYS_HAS_CPU_SB1 840 select SYS_SUPPORTS_BIG_ENDIAN 841 select SYS_SUPPORTS_LITTLE_ENDIAN 842 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 843 844config SIBYTE_BIGSUR 845 bool "Sibyte BCM91480B-BigSur" 846 select BOOT_ELF32 847 select NR_CPUS_DEFAULT_4 848 select SIBYTE_BCM1x80 849 select SWAP_IO_SPACE 850 select SYS_HAS_CPU_SB1 851 select SYS_SUPPORTS_BIG_ENDIAN 852 select SYS_SUPPORTS_HIGHMEM 853 select SYS_SUPPORTS_LITTLE_ENDIAN 854 select ZONE_DMA32 if 64BIT 855 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 856 857config SNI_RM 858 bool "SNI RM200/300/400" 859 select ARC_MEMORY 860 select ARC_PROMLIB 861 select FW_ARC if CPU_LITTLE_ENDIAN 862 select FW_ARC32 if CPU_LITTLE_ENDIAN 863 select FW_SNIPROM if CPU_BIG_ENDIAN 864 select ARCH_MAY_HAVE_PC_FDC 865 select ARCH_MIGHT_HAVE_PC_PARPORT 866 select ARCH_MIGHT_HAVE_PC_SERIO 867 select BOOT_ELF32 868 select CEVT_R4K 869 select CSRC_R4K 870 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 871 select DMA_NONCOHERENT 872 select GENERIC_ISA_DMA 873 select HAVE_EISA 874 select HAVE_PCSPKR_PLATFORM 875 select HAVE_PCI 876 select IRQ_MIPS_CPU 877 select I8253 878 select I8259 879 select ISA 880 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 881 select SYS_HAS_CPU_R4X00 882 select SYS_HAS_CPU_R5000 883 select SYS_HAS_CPU_R10000 884 select R5000_CPU_SCACHE 885 select SYS_HAS_EARLY_PRINTK 886 select SYS_SUPPORTS_32BIT_KERNEL 887 select SYS_SUPPORTS_64BIT_KERNEL 888 select SYS_SUPPORTS_BIG_ENDIAN 889 select SYS_SUPPORTS_HIGHMEM 890 select SYS_SUPPORTS_LITTLE_ENDIAN 891 help 892 The SNI RM200/300/400 are MIPS-based machines manufactured by 893 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 894 Technology and now in turn merged with Fujitsu. Say Y here to 895 support this machine type. 896 897config MACH_TX39XX 898 bool "Toshiba TX39 series based machines" 899 900config MACH_TX49XX 901 bool "Toshiba TX49 series based machines" 902 903config MIKROTIK_RB532 904 bool "Mikrotik RB532 boards" 905 select CEVT_R4K 906 select CSRC_R4K 907 select DMA_NONCOHERENT 908 select HAVE_PCI 909 select IRQ_MIPS_CPU 910 select SYS_HAS_CPU_MIPS32_R1 911 select SYS_SUPPORTS_32BIT_KERNEL 912 select SYS_SUPPORTS_LITTLE_ENDIAN 913 select SWAP_IO_SPACE 914 select BOOT_RAW 915 select GPIOLIB 916 select MIPS_L1_CACHE_SHIFT_4 917 help 918 Support the Mikrotik(tm) RouterBoard 532 series, 919 based on the IDT RC32434 SoC. 920 921config CAVIUM_OCTEON_SOC 922 bool "Cavium Networks Octeon SoC based boards" 923 select CEVT_R4K 924 select ARCH_HAS_PHYS_TO_DMA 925 select HAVE_RAPIDIO 926 select PHYS_ADDR_T_64BIT 927 select SYS_SUPPORTS_64BIT_KERNEL 928 select SYS_SUPPORTS_BIG_ENDIAN 929 select EDAC_SUPPORT 930 select EDAC_ATOMIC_SCRUB 931 select SYS_SUPPORTS_LITTLE_ENDIAN 932 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 933 select SYS_HAS_EARLY_PRINTK 934 select SYS_HAS_CPU_CAVIUM_OCTEON 935 select HAVE_PCI 936 select HAVE_PLAT_DELAY 937 select HAVE_PLAT_FW_INIT_CMDLINE 938 select HAVE_PLAT_MEMCPY 939 select ZONE_DMA32 940 select HOLES_IN_ZONE 941 select GPIOLIB 942 select USE_OF 943 select ARCH_SPARSEMEM_ENABLE 944 select SYS_SUPPORTS_SMP 945 select NR_CPUS_DEFAULT_64 946 select MIPS_NR_CPU_NR_MAP_1024 947 select BUILTIN_DTB 948 select MTD_COMPLEX_MAPPINGS 949 select SWIOTLB 950 select SYS_SUPPORTS_RELOCATABLE 951 help 952 This option supports all of the Octeon reference boards from Cavium 953 Networks. It builds a kernel that dynamically determines the Octeon 954 CPU type and supports all known board reference implementations. 955 Some of the supported boards are: 956 EBT3000 957 EBH3000 958 EBH3100 959 Thunder 960 Kodama 961 Hikari 962 Say Y here for most Octeon reference boards. 963 964config NLM_XLR_BOARD 965 bool "Netlogic XLR/XLS based systems" 966 select BOOT_ELF32 967 select NLM_COMMON 968 select SYS_HAS_CPU_XLR 969 select SYS_SUPPORTS_SMP 970 select HAVE_PCI 971 select SWAP_IO_SPACE 972 select SYS_SUPPORTS_32BIT_KERNEL 973 select SYS_SUPPORTS_64BIT_KERNEL 974 select PHYS_ADDR_T_64BIT 975 select SYS_SUPPORTS_BIG_ENDIAN 976 select SYS_SUPPORTS_HIGHMEM 977 select NR_CPUS_DEFAULT_32 978 select CEVT_R4K 979 select CSRC_R4K 980 select IRQ_MIPS_CPU 981 select ZONE_DMA32 if 64BIT 982 select SYNC_R4K 983 select SYS_HAS_EARLY_PRINTK 984 select SYS_SUPPORTS_ZBOOT 985 select SYS_SUPPORTS_ZBOOT_UART16550 986 help 987 Support for systems based on Netlogic XLR and XLS processors. 988 Say Y here if you have a XLR or XLS based board. 989 990config NLM_XLP_BOARD 991 bool "Netlogic XLP based systems" 992 select BOOT_ELF32 993 select NLM_COMMON 994 select SYS_HAS_CPU_XLP 995 select SYS_SUPPORTS_SMP 996 select HAVE_PCI 997 select SYS_SUPPORTS_32BIT_KERNEL 998 select SYS_SUPPORTS_64BIT_KERNEL 999 select PHYS_ADDR_T_64BIT 1000 select GPIOLIB 1001 select SYS_SUPPORTS_BIG_ENDIAN 1002 select SYS_SUPPORTS_LITTLE_ENDIAN 1003 select SYS_SUPPORTS_HIGHMEM 1004 select NR_CPUS_DEFAULT_32 1005 select CEVT_R4K 1006 select CSRC_R4K 1007 select IRQ_MIPS_CPU 1008 select ZONE_DMA32 if 64BIT 1009 select SYNC_R4K 1010 select SYS_HAS_EARLY_PRINTK 1011 select USE_OF 1012 select SYS_SUPPORTS_ZBOOT 1013 select SYS_SUPPORTS_ZBOOT_UART16550 1014 help 1015 This board is based on Netlogic XLP Processor. 1016 Say Y here if you have a XLP based board. 1017 1018endchoice 1019 1020source "arch/mips/alchemy/Kconfig" 1021source "arch/mips/ath25/Kconfig" 1022source "arch/mips/ath79/Kconfig" 1023source "arch/mips/bcm47xx/Kconfig" 1024source "arch/mips/bcm63xx/Kconfig" 1025source "arch/mips/bmips/Kconfig" 1026source "arch/mips/generic/Kconfig" 1027source "arch/mips/jazz/Kconfig" 1028source "arch/mips/jz4740/Kconfig" 1029source "arch/mips/lantiq/Kconfig" 1030source "arch/mips/pic32/Kconfig" 1031source "arch/mips/pistachio/Kconfig" 1032source "arch/mips/ralink/Kconfig" 1033source "arch/mips/sgi-ip27/Kconfig" 1034source "arch/mips/sibyte/Kconfig" 1035source "arch/mips/txx9/Kconfig" 1036source "arch/mips/vr41xx/Kconfig" 1037source "arch/mips/cavium-octeon/Kconfig" 1038source "arch/mips/loongson2ef/Kconfig" 1039source "arch/mips/loongson32/Kconfig" 1040source "arch/mips/loongson64/Kconfig" 1041source "arch/mips/netlogic/Kconfig" 1042 1043endmenu 1044 1045config GENERIC_HWEIGHT 1046 bool 1047 default y 1048 1049config GENERIC_CALIBRATE_DELAY 1050 bool 1051 default y 1052 1053config SCHED_OMIT_FRAME_POINTER 1054 bool 1055 default y 1056 1057# 1058# Select some configuration options automatically based on user selections. 1059# 1060config FW_ARC 1061 bool 1062 1063config ARCH_MAY_HAVE_PC_FDC 1064 bool 1065 1066config BOOT_RAW 1067 bool 1068 1069config CEVT_BCM1480 1070 bool 1071 1072config CEVT_DS1287 1073 bool 1074 1075config CEVT_GT641XX 1076 bool 1077 1078config CEVT_R4K 1079 bool 1080 1081config CEVT_SB1250 1082 bool 1083 1084config CEVT_TXX9 1085 bool 1086 1087config CSRC_BCM1480 1088 bool 1089 1090config CSRC_IOASIC 1091 bool 1092 1093config CSRC_R4K 1094 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1095 bool 1096 1097config CSRC_SB1250 1098 bool 1099 1100config MIPS_CLOCK_VSYSCALL 1101 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1102 1103config GPIO_TXX9 1104 select GPIOLIB 1105 bool 1106 1107config FW_CFE 1108 bool 1109 1110config ARCH_SUPPORTS_UPROBES 1111 bool 1112 1113config DMA_MAYBE_COHERENT 1114 select ARCH_HAS_DMA_COHERENCE_H 1115 select DMA_NONCOHERENT 1116 bool 1117 1118config DMA_PERDEV_COHERENT 1119 bool 1120 select ARCH_HAS_SETUP_DMA_OPS 1121 select DMA_NONCOHERENT 1122 1123config DMA_NONCOHERENT 1124 bool 1125 # 1126 # MIPS allows mixing "slightly different" Cacheability and Coherency 1127 # Attribute bits. It is believed that the uncached access through 1128 # KSEG1 and the implementation specific "uncached accelerated" used 1129 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1130 # significant advantages. 1131 # 1132 select ARCH_HAS_DMA_WRITE_COMBINE 1133 select ARCH_HAS_DMA_PREP_COHERENT 1134 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1135 select ARCH_HAS_DMA_SET_UNCACHED 1136 select DMA_NONCOHERENT_MMAP 1137 select DMA_NONCOHERENT_CACHE_SYNC 1138 select NEED_DMA_MAP_STATE 1139 1140config SYS_HAS_EARLY_PRINTK 1141 bool 1142 1143config SYS_SUPPORTS_HOTPLUG_CPU 1144 bool 1145 1146config MIPS_BONITO64 1147 bool 1148 1149config MIPS_MSC 1150 bool 1151 1152config SYNC_R4K 1153 bool 1154 1155config NO_IOPORT_MAP 1156 def_bool n 1157 1158config GENERIC_CSUM 1159 def_bool CPU_NO_LOAD_STORE_LR 1160 1161config GENERIC_ISA_DMA 1162 bool 1163 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1164 select ISA_DMA_API 1165 1166config GENERIC_ISA_DMA_SUPPORT_BROKEN 1167 bool 1168 select GENERIC_ISA_DMA 1169 1170config HAVE_PLAT_DELAY 1171 bool 1172 1173config HAVE_PLAT_FW_INIT_CMDLINE 1174 bool 1175 1176config HAVE_PLAT_MEMCPY 1177 bool 1178 1179config ISA_DMA_API 1180 bool 1181 1182config HOLES_IN_ZONE 1183 bool 1184 1185config SYS_SUPPORTS_RELOCATABLE 1186 bool 1187 help 1188 Selected if the platform supports relocating the kernel. 1189 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1190 to allow access to command line and entropy sources. 1191 1192config MIPS_CBPF_JIT 1193 def_bool y 1194 depends on BPF_JIT && HAVE_CBPF_JIT 1195 1196config MIPS_EBPF_JIT 1197 def_bool y 1198 depends on BPF_JIT && HAVE_EBPF_JIT 1199 1200 1201# 1202# Endianness selection. Sufficiently obscure so many users don't know what to 1203# answer,so we try hard to limit the available choices. Also the use of a 1204# choice statement should be more obvious to the user. 1205# 1206choice 1207 prompt "Endianness selection" 1208 help 1209 Some MIPS machines can be configured for either little or big endian 1210 byte order. These modes require different kernels and a different 1211 Linux distribution. In general there is one preferred byteorder for a 1212 particular system but some systems are just as commonly used in the 1213 one or the other endianness. 1214 1215config CPU_BIG_ENDIAN 1216 bool "Big endian" 1217 depends on SYS_SUPPORTS_BIG_ENDIAN 1218 1219config CPU_LITTLE_ENDIAN 1220 bool "Little endian" 1221 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1222 1223endchoice 1224 1225config EXPORT_UASM 1226 bool 1227 1228config SYS_SUPPORTS_APM_EMULATION 1229 bool 1230 1231config SYS_SUPPORTS_BIG_ENDIAN 1232 bool 1233 1234config SYS_SUPPORTS_LITTLE_ENDIAN 1235 bool 1236 1237config SYS_SUPPORTS_HUGETLBFS 1238 bool 1239 depends on CPU_SUPPORTS_HUGEPAGES 1240 default y 1241 1242config MIPS_HUGE_TLB_SUPPORT 1243 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1244 1245config IRQ_CPU_RM7K 1246 bool 1247 1248config IRQ_MSP_SLP 1249 bool 1250 1251config IRQ_MSP_CIC 1252 bool 1253 1254config IRQ_TXX9 1255 bool 1256 1257config IRQ_GT641XX 1258 bool 1259 1260config PCI_GT64XXX_PCI0 1261 bool 1262 1263config PCI_XTALK_BRIDGE 1264 bool 1265 1266config NO_EXCEPT_FILL 1267 bool 1268 1269config SOC_PNX833X 1270 bool 1271 select CEVT_R4K 1272 select CSRC_R4K 1273 select IRQ_MIPS_CPU 1274 select DMA_NONCOHERENT 1275 select SYS_HAS_CPU_MIPS32_R2 1276 select SYS_SUPPORTS_32BIT_KERNEL 1277 select SYS_SUPPORTS_LITTLE_ENDIAN 1278 select SYS_SUPPORTS_BIG_ENDIAN 1279 select SYS_SUPPORTS_MIPS16 1280 select CPU_MIPSR2_IRQ_VI 1281 1282config SOC_PNX8335 1283 bool 1284 select SOC_PNX833X 1285 1286config MIPS_SPRAM 1287 bool 1288 1289config SWAP_IO_SPACE 1290 bool 1291 1292config SGI_HAS_INDYDOG 1293 bool 1294 1295config SGI_HAS_HAL2 1296 bool 1297 1298config SGI_HAS_SEEQ 1299 bool 1300 1301config SGI_HAS_WD93 1302 bool 1303 1304config SGI_HAS_ZILOG 1305 bool 1306 1307config SGI_HAS_I8042 1308 bool 1309 1310config DEFAULT_SGI_PARTITION 1311 bool 1312 1313config FW_ARC32 1314 bool 1315 1316config FW_SNIPROM 1317 bool 1318 1319config BOOT_ELF32 1320 bool 1321 1322config MIPS_L1_CACHE_SHIFT_4 1323 bool 1324 1325config MIPS_L1_CACHE_SHIFT_5 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT_6 1329 bool 1330 1331config MIPS_L1_CACHE_SHIFT_7 1332 bool 1333 1334config MIPS_L1_CACHE_SHIFT 1335 int 1336 default "7" if MIPS_L1_CACHE_SHIFT_7 1337 default "6" if MIPS_L1_CACHE_SHIFT_6 1338 default "5" if MIPS_L1_CACHE_SHIFT_5 1339 default "4" if MIPS_L1_CACHE_SHIFT_4 1340 default "5" 1341 1342config ARC_CMDLINE_ONLY 1343 bool 1344 1345config ARC_CONSOLE 1346 bool "ARC console support" 1347 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1348 1349config ARC_MEMORY 1350 bool 1351 1352config ARC_PROMLIB 1353 bool 1354 1355config FW_ARC64 1356 bool 1357 1358config BOOT_ELF64 1359 bool 1360 1361menu "CPU selection" 1362 1363choice 1364 prompt "CPU type" 1365 default CPU_R4X00 1366 1367config CPU_LOONGSON64 1368 bool "Loongson 64-bit CPU" 1369 depends on SYS_HAS_CPU_LOONGSON64 1370 select ARCH_HAS_PHYS_TO_DMA 1371 select CPU_MIPSR2 1372 select CPU_HAS_PREFETCH 1373 select CPU_SUPPORTS_64BIT_KERNEL 1374 select CPU_SUPPORTS_HIGHMEM 1375 select CPU_SUPPORTS_HUGEPAGES 1376 select CPU_SUPPORTS_MSA 1377 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1378 select CPU_MIPSR2_IRQ_VI 1379 select WEAK_ORDERING 1380 select WEAK_REORDERING_BEYOND_LLSC 1381 select MIPS_ASID_BITS_VARIABLE 1382 select MIPS_PGD_C0_CONTEXT 1383 select MIPS_L1_CACHE_SHIFT_6 1384 select GPIOLIB 1385 select SWIOTLB 1386 select HAVE_KVM 1387 help 1388 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1389 cores implements the MIPS64R2 instruction set with many extensions, 1390 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1391 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1392 Loongson-2E/2F is not covered here and will be removed in future. 1393 1394config LOONGSON3_ENHANCEMENT 1395 bool "New Loongson-3 CPU Enhancements" 1396 default n 1397 depends on CPU_LOONGSON64 1398 help 1399 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1400 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1401 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1402 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1403 Fast TLB refill support, etc. 1404 1405 This option enable those enhancements which are not probed at run 1406 time. If you want a generic kernel to run on all Loongson 3 machines, 1407 please say 'N' here. If you want a high-performance kernel to run on 1408 new Loongson-3 machines only, please say 'Y' here. 1409 1410config CPU_LOONGSON3_WORKAROUNDS 1411 bool "Old Loongson-3 LLSC Workarounds" 1412 default y if SMP 1413 depends on CPU_LOONGSON64 1414 help 1415 Loongson-3 processors have the llsc issues which require workarounds. 1416 Without workarounds the system may hang unexpectedly. 1417 1418 Newer Loongson-3 will fix these issues and no workarounds are needed. 1419 The workarounds have no significant side effect on them but may 1420 decrease the performance of the system so this option should be 1421 disabled unless the kernel is intended to be run on old systems. 1422 1423 If unsure, please say Y. 1424 1425config CPU_LOONGSON3_CPUCFG_EMULATION 1426 bool "Emulate the CPUCFG instruction on older Loongson cores" 1427 default y 1428 depends on CPU_LOONGSON64 1429 help 1430 Loongson-3A R4 and newer have the CPUCFG instruction available for 1431 userland to query CPU capabilities, much like CPUID on x86. This 1432 option provides emulation of the instruction on older Loongson 1433 cores, back to Loongson-3A1000. 1434 1435 If unsure, please say Y. 1436 1437config CPU_LOONGSON2E 1438 bool "Loongson 2E" 1439 depends on SYS_HAS_CPU_LOONGSON2E 1440 select CPU_LOONGSON2EF 1441 help 1442 The Loongson 2E processor implements the MIPS III instruction set 1443 with many extensions. 1444 1445 It has an internal FPGA northbridge, which is compatible to 1446 bonito64. 1447 1448config CPU_LOONGSON2F 1449 bool "Loongson 2F" 1450 depends on SYS_HAS_CPU_LOONGSON2F 1451 select CPU_LOONGSON2EF 1452 select GPIOLIB 1453 help 1454 The Loongson 2F processor implements the MIPS III instruction set 1455 with many extensions. 1456 1457 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1458 have a similar programming interface with FPGA northbridge used in 1459 Loongson2E. 1460 1461config CPU_LOONGSON1B 1462 bool "Loongson 1B" 1463 depends on SYS_HAS_CPU_LOONGSON1B 1464 select CPU_LOONGSON32 1465 select LEDS_GPIO_REGISTER 1466 help 1467 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1468 Release 1 instruction set and part of the MIPS32 Release 2 1469 instruction set. 1470 1471config CPU_LOONGSON1C 1472 bool "Loongson 1C" 1473 depends on SYS_HAS_CPU_LOONGSON1C 1474 select CPU_LOONGSON32 1475 select LEDS_GPIO_REGISTER 1476 help 1477 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1478 Release 1 instruction set and part of the MIPS32 Release 2 1479 instruction set. 1480 1481config CPU_MIPS32_R1 1482 bool "MIPS32 Release 1" 1483 depends on SYS_HAS_CPU_MIPS32_R1 1484 select CPU_HAS_PREFETCH 1485 select CPU_SUPPORTS_32BIT_KERNEL 1486 select CPU_SUPPORTS_HIGHMEM 1487 help 1488 Choose this option to build a kernel for release 1 or later of the 1489 MIPS32 architecture. Most modern embedded systems with a 32-bit 1490 MIPS processor are based on a MIPS32 processor. If you know the 1491 specific type of processor in your system, choose those that one 1492 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1493 Release 2 of the MIPS32 architecture is available since several 1494 years so chances are you even have a MIPS32 Release 2 processor 1495 in which case you should choose CPU_MIPS32_R2 instead for better 1496 performance. 1497 1498config CPU_MIPS32_R2 1499 bool "MIPS32 Release 2" 1500 depends on SYS_HAS_CPU_MIPS32_R2 1501 select CPU_HAS_PREFETCH 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_HIGHMEM 1504 select CPU_SUPPORTS_MSA 1505 select HAVE_KVM 1506 help 1507 Choose this option to build a kernel for release 2 or later of the 1508 MIPS32 architecture. Most modern embedded systems with a 32-bit 1509 MIPS processor are based on a MIPS32 processor. If you know the 1510 specific type of processor in your system, choose those that one 1511 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1512 1513config CPU_MIPS32_R5 1514 bool "MIPS32 Release 5" 1515 depends on SYS_HAS_CPU_MIPS32_R5 1516 select CPU_HAS_PREFETCH 1517 select CPU_SUPPORTS_32BIT_KERNEL 1518 select CPU_SUPPORTS_HIGHMEM 1519 select CPU_SUPPORTS_MSA 1520 select HAVE_KVM 1521 select MIPS_O32_FP64_SUPPORT 1522 help 1523 Choose this option to build a kernel for release 5 or later of the 1524 MIPS32 architecture. New MIPS processors, starting with the Warrior 1525 family, are based on a MIPS32r5 processor. If you own an older 1526 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1527 1528config CPU_MIPS32_R6 1529 bool "MIPS32 Release 6" 1530 depends on SYS_HAS_CPU_MIPS32_R6 1531 select CPU_HAS_PREFETCH 1532 select CPU_NO_LOAD_STORE_LR 1533 select CPU_SUPPORTS_32BIT_KERNEL 1534 select CPU_SUPPORTS_HIGHMEM 1535 select CPU_SUPPORTS_MSA 1536 select HAVE_KVM 1537 select MIPS_O32_FP64_SUPPORT 1538 help 1539 Choose this option to build a kernel for release 6 or later of the 1540 MIPS32 architecture. New MIPS processors, starting with the Warrior 1541 family, are based on a MIPS32r6 processor. If you own an older 1542 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1543 1544config CPU_MIPS64_R1 1545 bool "MIPS64 Release 1" 1546 depends on SYS_HAS_CPU_MIPS64_R1 1547 select CPU_HAS_PREFETCH 1548 select CPU_SUPPORTS_32BIT_KERNEL 1549 select CPU_SUPPORTS_64BIT_KERNEL 1550 select CPU_SUPPORTS_HIGHMEM 1551 select CPU_SUPPORTS_HUGEPAGES 1552 help 1553 Choose this option to build a kernel for release 1 or later of the 1554 MIPS64 architecture. Many modern embedded systems with a 64-bit 1555 MIPS processor are based on a MIPS64 processor. If you know the 1556 specific type of processor in your system, choose those that one 1557 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1558 Release 2 of the MIPS64 architecture is available since several 1559 years so chances are you even have a MIPS64 Release 2 processor 1560 in which case you should choose CPU_MIPS64_R2 instead for better 1561 performance. 1562 1563config CPU_MIPS64_R2 1564 bool "MIPS64 Release 2" 1565 depends on SYS_HAS_CPU_MIPS64_R2 1566 select CPU_HAS_PREFETCH 1567 select CPU_SUPPORTS_32BIT_KERNEL 1568 select CPU_SUPPORTS_64BIT_KERNEL 1569 select CPU_SUPPORTS_HIGHMEM 1570 select CPU_SUPPORTS_HUGEPAGES 1571 select CPU_SUPPORTS_MSA 1572 select HAVE_KVM 1573 help 1574 Choose this option to build a kernel for release 2 or later of the 1575 MIPS64 architecture. Many modern embedded systems with a 64-bit 1576 MIPS processor are based on a MIPS64 processor. If you know the 1577 specific type of processor in your system, choose those that one 1578 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1579 1580config CPU_MIPS64_R5 1581 bool "MIPS64 Release 5" 1582 depends on SYS_HAS_CPU_MIPS64_R5 1583 select CPU_HAS_PREFETCH 1584 select CPU_SUPPORTS_32BIT_KERNEL 1585 select CPU_SUPPORTS_64BIT_KERNEL 1586 select CPU_SUPPORTS_HIGHMEM 1587 select CPU_SUPPORTS_HUGEPAGES 1588 select CPU_SUPPORTS_MSA 1589 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1590 select HAVE_KVM 1591 help 1592 Choose this option to build a kernel for release 5 or later of the 1593 MIPS64 architecture. This is a intermediate MIPS architecture 1594 release partly implementing release 6 features. Though there is no 1595 any hardware known to be based on this release. 1596 1597config CPU_MIPS64_R6 1598 bool "MIPS64 Release 6" 1599 depends on SYS_HAS_CPU_MIPS64_R6 1600 select CPU_HAS_PREFETCH 1601 select CPU_NO_LOAD_STORE_LR 1602 select CPU_SUPPORTS_32BIT_KERNEL 1603 select CPU_SUPPORTS_64BIT_KERNEL 1604 select CPU_SUPPORTS_HIGHMEM 1605 select CPU_SUPPORTS_HUGEPAGES 1606 select CPU_SUPPORTS_MSA 1607 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1608 select HAVE_KVM 1609 help 1610 Choose this option to build a kernel for release 6 or later of the 1611 MIPS64 architecture. New MIPS processors, starting with the Warrior 1612 family, are based on a MIPS64r6 processor. If you own an older 1613 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1614 1615config CPU_P5600 1616 bool "MIPS Warrior P5600" 1617 depends on SYS_HAS_CPU_P5600 1618 select CPU_HAS_PREFETCH 1619 select CPU_SUPPORTS_32BIT_KERNEL 1620 select CPU_SUPPORTS_HIGHMEM 1621 select CPU_SUPPORTS_MSA 1622 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1623 select CPU_SUPPORTS_CPUFREQ 1624 select CPU_MIPSR2_IRQ_VI 1625 select CPU_MIPSR2_IRQ_EI 1626 select HAVE_KVM 1627 select MIPS_O32_FP64_SUPPORT 1628 help 1629 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1630 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1631 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1632 level features like up to six P5600 calculation cores, CM2 with L2 1633 cache, IOCU/IOMMU (though might be unused depending on the system- 1634 specific IP core configuration), GIC, CPC, virtualisation module, 1635 eJTAG and PDtrace. 1636 1637config CPU_R3000 1638 bool "R3000" 1639 depends on SYS_HAS_CPU_R3000 1640 select CPU_HAS_WB 1641 select CPU_R3K_TLB 1642 select CPU_SUPPORTS_32BIT_KERNEL 1643 select CPU_SUPPORTS_HIGHMEM 1644 help 1645 Please make sure to pick the right CPU type. Linux/MIPS is not 1646 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1647 *not* work on R4000 machines and vice versa. However, since most 1648 of the supported machines have an R4000 (or similar) CPU, R4x00 1649 might be a safe bet. If the resulting kernel does not work, 1650 try to recompile with R3000. 1651 1652config CPU_TX39XX 1653 bool "R39XX" 1654 depends on SYS_HAS_CPU_TX39XX 1655 select CPU_SUPPORTS_32BIT_KERNEL 1656 select CPU_R3K_TLB 1657 1658config CPU_VR41XX 1659 bool "R41xx" 1660 depends on SYS_HAS_CPU_VR41XX 1661 select CPU_SUPPORTS_32BIT_KERNEL 1662 select CPU_SUPPORTS_64BIT_KERNEL 1663 help 1664 The options selects support for the NEC VR4100 series of processors. 1665 Only choose this option if you have one of these processors as a 1666 kernel built with this option will not run on any other type of 1667 processor or vice versa. 1668 1669config CPU_R4X00 1670 bool "R4x00" 1671 depends on SYS_HAS_CPU_R4X00 1672 select CPU_SUPPORTS_32BIT_KERNEL 1673 select CPU_SUPPORTS_64BIT_KERNEL 1674 select CPU_SUPPORTS_HUGEPAGES 1675 help 1676 MIPS Technologies R4000-series processors other than 4300, including 1677 the R4000, R4400, R4600, and 4700. 1678 1679config CPU_TX49XX 1680 bool "R49XX" 1681 depends on SYS_HAS_CPU_TX49XX 1682 select CPU_HAS_PREFETCH 1683 select CPU_SUPPORTS_32BIT_KERNEL 1684 select CPU_SUPPORTS_64BIT_KERNEL 1685 select CPU_SUPPORTS_HUGEPAGES 1686 1687config CPU_R5000 1688 bool "R5000" 1689 depends on SYS_HAS_CPU_R5000 1690 select CPU_SUPPORTS_32BIT_KERNEL 1691 select CPU_SUPPORTS_64BIT_KERNEL 1692 select CPU_SUPPORTS_HUGEPAGES 1693 help 1694 MIPS Technologies R5000-series processors other than the Nevada. 1695 1696config CPU_R5500 1697 bool "R5500" 1698 depends on SYS_HAS_CPU_R5500 1699 select CPU_SUPPORTS_32BIT_KERNEL 1700 select CPU_SUPPORTS_64BIT_KERNEL 1701 select CPU_SUPPORTS_HUGEPAGES 1702 help 1703 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1704 instruction set. 1705 1706config CPU_NEVADA 1707 bool "RM52xx" 1708 depends on SYS_HAS_CPU_NEVADA 1709 select CPU_SUPPORTS_32BIT_KERNEL 1710 select CPU_SUPPORTS_64BIT_KERNEL 1711 select CPU_SUPPORTS_HUGEPAGES 1712 help 1713 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1714 1715config CPU_R10000 1716 bool "R10000" 1717 depends on SYS_HAS_CPU_R10000 1718 select CPU_HAS_PREFETCH 1719 select CPU_SUPPORTS_32BIT_KERNEL 1720 select CPU_SUPPORTS_64BIT_KERNEL 1721 select CPU_SUPPORTS_HIGHMEM 1722 select CPU_SUPPORTS_HUGEPAGES 1723 help 1724 MIPS Technologies R10000-series processors. 1725 1726config CPU_RM7000 1727 bool "RM7000" 1728 depends on SYS_HAS_CPU_RM7000 1729 select CPU_HAS_PREFETCH 1730 select CPU_SUPPORTS_32BIT_KERNEL 1731 select CPU_SUPPORTS_64BIT_KERNEL 1732 select CPU_SUPPORTS_HIGHMEM 1733 select CPU_SUPPORTS_HUGEPAGES 1734 1735config CPU_SB1 1736 bool "SB1" 1737 depends on SYS_HAS_CPU_SB1 1738 select CPU_SUPPORTS_32BIT_KERNEL 1739 select CPU_SUPPORTS_64BIT_KERNEL 1740 select CPU_SUPPORTS_HIGHMEM 1741 select CPU_SUPPORTS_HUGEPAGES 1742 select WEAK_ORDERING 1743 1744config CPU_CAVIUM_OCTEON 1745 bool "Cavium Octeon processor" 1746 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1747 select CPU_HAS_PREFETCH 1748 select CPU_SUPPORTS_64BIT_KERNEL 1749 select WEAK_ORDERING 1750 select CPU_SUPPORTS_HIGHMEM 1751 select CPU_SUPPORTS_HUGEPAGES 1752 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1753 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1754 select MIPS_L1_CACHE_SHIFT_7 1755 select HAVE_KVM 1756 help 1757 The Cavium Octeon processor is a highly integrated chip containing 1758 many ethernet hardware widgets for networking tasks. The processor 1759 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1760 Full details can be found at http://www.caviumnetworks.com. 1761 1762config CPU_BMIPS 1763 bool "Broadcom BMIPS" 1764 depends on SYS_HAS_CPU_BMIPS 1765 select CPU_MIPS32 1766 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1767 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1768 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1769 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1770 select CPU_SUPPORTS_32BIT_KERNEL 1771 select DMA_NONCOHERENT 1772 select IRQ_MIPS_CPU 1773 select SWAP_IO_SPACE 1774 select WEAK_ORDERING 1775 select CPU_SUPPORTS_HIGHMEM 1776 select CPU_HAS_PREFETCH 1777 select CPU_SUPPORTS_CPUFREQ 1778 select MIPS_EXTERNAL_TIMER 1779 help 1780 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1781 1782config CPU_XLR 1783 bool "Netlogic XLR SoC" 1784 depends on SYS_HAS_CPU_XLR 1785 select CPU_SUPPORTS_32BIT_KERNEL 1786 select CPU_SUPPORTS_64BIT_KERNEL 1787 select CPU_SUPPORTS_HIGHMEM 1788 select CPU_SUPPORTS_HUGEPAGES 1789 select WEAK_ORDERING 1790 select WEAK_REORDERING_BEYOND_LLSC 1791 help 1792 Netlogic Microsystems XLR/XLS processors. 1793 1794config CPU_XLP 1795 bool "Netlogic XLP SoC" 1796 depends on SYS_HAS_CPU_XLP 1797 select CPU_SUPPORTS_32BIT_KERNEL 1798 select CPU_SUPPORTS_64BIT_KERNEL 1799 select CPU_SUPPORTS_HIGHMEM 1800 select WEAK_ORDERING 1801 select WEAK_REORDERING_BEYOND_LLSC 1802 select CPU_HAS_PREFETCH 1803 select CPU_MIPSR2 1804 select CPU_SUPPORTS_HUGEPAGES 1805 select MIPS_ASID_BITS_VARIABLE 1806 help 1807 Netlogic Microsystems XLP processors. 1808endchoice 1809 1810config CPU_MIPS32_3_5_FEATURES 1811 bool "MIPS32 Release 3.5 Features" 1812 depends on SYS_HAS_CPU_MIPS32_R3_5 1813 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1814 CPU_P5600 1815 help 1816 Choose this option to build a kernel for release 2 or later of the 1817 MIPS32 architecture including features from the 3.5 release such as 1818 support for Enhanced Virtual Addressing (EVA). 1819 1820config CPU_MIPS32_3_5_EVA 1821 bool "Enhanced Virtual Addressing (EVA)" 1822 depends on CPU_MIPS32_3_5_FEATURES 1823 select EVA 1824 default y 1825 help 1826 Choose this option if you want to enable the Enhanced Virtual 1827 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1828 One of its primary benefits is an increase in the maximum size 1829 of lowmem (up to 3GB). If unsure, say 'N' here. 1830 1831config CPU_MIPS32_R5_FEATURES 1832 bool "MIPS32 Release 5 Features" 1833 depends on SYS_HAS_CPU_MIPS32_R5 1834 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1835 help 1836 Choose this option to build a kernel for release 2 or later of the 1837 MIPS32 architecture including features from release 5 such as 1838 support for Extended Physical Addressing (XPA). 1839 1840config CPU_MIPS32_R5_XPA 1841 bool "Extended Physical Addressing (XPA)" 1842 depends on CPU_MIPS32_R5_FEATURES 1843 depends on !EVA 1844 depends on !PAGE_SIZE_4KB 1845 depends on SYS_SUPPORTS_HIGHMEM 1846 select XPA 1847 select HIGHMEM 1848 select PHYS_ADDR_T_64BIT 1849 default n 1850 help 1851 Choose this option if you want to enable the Extended Physical 1852 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1853 benefit is to increase physical addressing equal to or greater 1854 than 40 bits. Note that this has the side effect of turning on 1855 64-bit addressing which in turn makes the PTEs 64-bit in size. 1856 If unsure, say 'N' here. 1857 1858if CPU_LOONGSON2F 1859config CPU_NOP_WORKAROUNDS 1860 bool 1861 1862config CPU_JUMP_WORKAROUNDS 1863 bool 1864 1865config CPU_LOONGSON2F_WORKAROUNDS 1866 bool "Loongson 2F Workarounds" 1867 default y 1868 select CPU_NOP_WORKAROUNDS 1869 select CPU_JUMP_WORKAROUNDS 1870 help 1871 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1872 require workarounds. Without workarounds the system may hang 1873 unexpectedly. For more information please refer to the gas 1874 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1875 1876 Loongson 2F03 and later have fixed these issues and no workarounds 1877 are needed. The workarounds have no significant side effect on them 1878 but may decrease the performance of the system so this option should 1879 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1880 systems. 1881 1882 If unsure, please say Y. 1883endif # CPU_LOONGSON2F 1884 1885config SYS_SUPPORTS_ZBOOT 1886 bool 1887 select HAVE_KERNEL_GZIP 1888 select HAVE_KERNEL_BZIP2 1889 select HAVE_KERNEL_LZ4 1890 select HAVE_KERNEL_LZMA 1891 select HAVE_KERNEL_LZO 1892 select HAVE_KERNEL_XZ 1893 1894config SYS_SUPPORTS_ZBOOT_UART16550 1895 bool 1896 select SYS_SUPPORTS_ZBOOT 1897 1898config SYS_SUPPORTS_ZBOOT_UART_PROM 1899 bool 1900 select SYS_SUPPORTS_ZBOOT 1901 1902config CPU_LOONGSON2EF 1903 bool 1904 select CPU_SUPPORTS_32BIT_KERNEL 1905 select CPU_SUPPORTS_64BIT_KERNEL 1906 select CPU_SUPPORTS_HIGHMEM 1907 select CPU_SUPPORTS_HUGEPAGES 1908 select ARCH_HAS_PHYS_TO_DMA 1909 1910config CPU_LOONGSON32 1911 bool 1912 select CPU_MIPS32 1913 select CPU_MIPSR2 1914 select CPU_HAS_PREFETCH 1915 select CPU_SUPPORTS_32BIT_KERNEL 1916 select CPU_SUPPORTS_HIGHMEM 1917 select CPU_SUPPORTS_CPUFREQ 1918 1919config CPU_BMIPS32_3300 1920 select SMP_UP if SMP 1921 bool 1922 1923config CPU_BMIPS4350 1924 bool 1925 select SYS_SUPPORTS_SMP 1926 select SYS_SUPPORTS_HOTPLUG_CPU 1927 1928config CPU_BMIPS4380 1929 bool 1930 select MIPS_L1_CACHE_SHIFT_6 1931 select SYS_SUPPORTS_SMP 1932 select SYS_SUPPORTS_HOTPLUG_CPU 1933 select CPU_HAS_RIXI 1934 1935config CPU_BMIPS5000 1936 bool 1937 select MIPS_CPU_SCACHE 1938 select MIPS_L1_CACHE_SHIFT_7 1939 select SYS_SUPPORTS_SMP 1940 select SYS_SUPPORTS_HOTPLUG_CPU 1941 select CPU_HAS_RIXI 1942 1943config SYS_HAS_CPU_LOONGSON64 1944 bool 1945 select CPU_SUPPORTS_CPUFREQ 1946 select CPU_HAS_RIXI 1947 1948config SYS_HAS_CPU_LOONGSON2E 1949 bool 1950 1951config SYS_HAS_CPU_LOONGSON2F 1952 bool 1953 select CPU_SUPPORTS_CPUFREQ 1954 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1955 1956config SYS_HAS_CPU_LOONGSON1B 1957 bool 1958 1959config SYS_HAS_CPU_LOONGSON1C 1960 bool 1961 1962config SYS_HAS_CPU_MIPS32_R1 1963 bool 1964 1965config SYS_HAS_CPU_MIPS32_R2 1966 bool 1967 1968config SYS_HAS_CPU_MIPS32_R3_5 1969 bool 1970 1971config SYS_HAS_CPU_MIPS32_R5 1972 bool 1973 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1974 1975config SYS_HAS_CPU_MIPS32_R6 1976 bool 1977 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1978 1979config SYS_HAS_CPU_MIPS64_R1 1980 bool 1981 1982config SYS_HAS_CPU_MIPS64_R2 1983 bool 1984 1985config SYS_HAS_CPU_MIPS64_R6 1986 bool 1987 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1988 1989config SYS_HAS_CPU_P5600 1990 bool 1991 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1992 1993config SYS_HAS_CPU_R3000 1994 bool 1995 1996config SYS_HAS_CPU_TX39XX 1997 bool 1998 1999config SYS_HAS_CPU_VR41XX 2000 bool 2001 2002config SYS_HAS_CPU_R4X00 2003 bool 2004 2005config SYS_HAS_CPU_TX49XX 2006 bool 2007 2008config SYS_HAS_CPU_R5000 2009 bool 2010 2011config SYS_HAS_CPU_R5500 2012 bool 2013 2014config SYS_HAS_CPU_NEVADA 2015 bool 2016 2017config SYS_HAS_CPU_R10000 2018 bool 2019 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2020 2021config SYS_HAS_CPU_RM7000 2022 bool 2023 2024config SYS_HAS_CPU_SB1 2025 bool 2026 2027config SYS_HAS_CPU_CAVIUM_OCTEON 2028 bool 2029 2030config SYS_HAS_CPU_BMIPS 2031 bool 2032 2033config SYS_HAS_CPU_BMIPS32_3300 2034 bool 2035 select SYS_HAS_CPU_BMIPS 2036 2037config SYS_HAS_CPU_BMIPS4350 2038 bool 2039 select SYS_HAS_CPU_BMIPS 2040 2041config SYS_HAS_CPU_BMIPS4380 2042 bool 2043 select SYS_HAS_CPU_BMIPS 2044 2045config SYS_HAS_CPU_BMIPS5000 2046 bool 2047 select SYS_HAS_CPU_BMIPS 2048 select ARCH_HAS_SYNC_DMA_FOR_CPU 2049 2050config SYS_HAS_CPU_XLR 2051 bool 2052 2053config SYS_HAS_CPU_XLP 2054 bool 2055 2056# 2057# CPU may reorder R->R, R->W, W->R, W->W 2058# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2059# 2060config WEAK_ORDERING 2061 bool 2062 2063# 2064# CPU may reorder reads and writes beyond LL/SC 2065# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2066# 2067config WEAK_REORDERING_BEYOND_LLSC 2068 bool 2069endmenu 2070 2071# 2072# These two indicate any level of the MIPS32 and MIPS64 architecture 2073# 2074config CPU_MIPS32 2075 bool 2076 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2077 CPU_MIPS32_R6 || CPU_P5600 2078 2079config CPU_MIPS64 2080 bool 2081 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2082 CPU_MIPS64_R6 2083 2084# 2085# These indicate the revision of the architecture 2086# 2087config CPU_MIPSR1 2088 bool 2089 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2090 2091config CPU_MIPSR2 2092 bool 2093 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2094 select CPU_HAS_RIXI 2095 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2096 select MIPS_SPRAM 2097 2098config CPU_MIPSR5 2099 bool 2100 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2101 select CPU_HAS_RIXI 2102 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2103 select MIPS_SPRAM 2104 2105config CPU_MIPSR6 2106 bool 2107 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2108 select CPU_HAS_RIXI 2109 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2110 select HAVE_ARCH_BITREVERSE 2111 select MIPS_ASID_BITS_VARIABLE 2112 select MIPS_CRC_SUPPORT 2113 select MIPS_SPRAM 2114 2115config TARGET_ISA_REV 2116 int 2117 default 1 if CPU_MIPSR1 2118 default 2 if CPU_MIPSR2 2119 default 5 if CPU_MIPSR5 2120 default 6 if CPU_MIPSR6 2121 default 0 2122 help 2123 Reflects the ISA revision being targeted by the kernel build. This 2124 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2125 2126config EVA 2127 bool 2128 2129config XPA 2130 bool 2131 2132config SYS_SUPPORTS_32BIT_KERNEL 2133 bool 2134config SYS_SUPPORTS_64BIT_KERNEL 2135 bool 2136config CPU_SUPPORTS_32BIT_KERNEL 2137 bool 2138config CPU_SUPPORTS_64BIT_KERNEL 2139 bool 2140config CPU_SUPPORTS_CPUFREQ 2141 bool 2142config CPU_SUPPORTS_ADDRWINCFG 2143 bool 2144config CPU_SUPPORTS_HUGEPAGES 2145 bool 2146 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2147config MIPS_PGD_C0_CONTEXT 2148 bool 2149 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2150 2151# 2152# Set to y for ptrace access to watch registers. 2153# 2154config HARDWARE_WATCHPOINTS 2155 bool 2156 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2157 2158menu "Kernel type" 2159 2160choice 2161 prompt "Kernel code model" 2162 help 2163 You should only select this option if you have a workload that 2164 actually benefits from 64-bit processing or if your machine has 2165 large memory. You will only be presented a single option in this 2166 menu if your system does not support both 32-bit and 64-bit kernels. 2167 2168config 32BIT 2169 bool "32-bit kernel" 2170 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2171 select TRAD_SIGNALS 2172 help 2173 Select this option if you want to build a 32-bit kernel. 2174 2175config 64BIT 2176 bool "64-bit kernel" 2177 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2178 help 2179 Select this option if you want to build a 64-bit kernel. 2180 2181endchoice 2182 2183config KVM_GUEST 2184 bool "KVM Guest Kernel" 2185 depends on CPU_MIPS32_R2 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