1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV 9 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 10 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 11 select ARCH_HAS_UBSAN_SANITIZE_ALL 12 select ARCH_SUPPORTS_UPROBES 13 select ARCH_USE_BUILTIN_BSWAP 14 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 15 select ARCH_USE_QUEUED_RWLOCKS 16 select ARCH_USE_QUEUED_SPINLOCKS 17 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 18 select ARCH_WANT_IPC_PARSE_VERSION 19 select BUILDTIME_TABLE_SORT 20 select CLONE_BACKWARDS 21 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 22 select CPU_PM if CPU_IDLE 23 select GENERIC_ATOMIC64 if !64BIT 24 select GENERIC_CLOCKEVENTS 25 select GENERIC_CMOS_UPDATE 26 select GENERIC_CPU_AUTOPROBE 27 select GENERIC_GETTIMEOFDAY 28 select GENERIC_IOMAP 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_ISA_DMA if EISA 32 select GENERIC_LIB_ASHLDI3 33 select GENERIC_LIB_ASHRDI3 34 select GENERIC_LIB_CMPDI2 35 select GENERIC_LIB_LSHRDI3 36 select GENERIC_LIB_UCMPDI2 37 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 38 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_TIME_VSYSCALL 40 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 41 select HANDLE_DOMAIN_IRQ 42 select HAVE_ARCH_COMPILER_H 43 select HAVE_ARCH_JUMP_LABEL 44 select HAVE_ARCH_KGDB 45 select HAVE_ARCH_MMAP_RND_BITS if MMU 46 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 47 select HAVE_ARCH_SECCOMP_FILTER 48 select HAVE_ARCH_TRACEHOOK 49 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 50 select HAVE_ASM_MODVERSIONS 51 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 52 select HAVE_CONTEXT_TRACKING 53 select HAVE_TIF_NOHZ 54 select HAVE_COPY_THREAD_TLS 55 select HAVE_C_RECORDMCOUNT 56 select HAVE_DEBUG_KMEMLEAK 57 select HAVE_DEBUG_STACKOVERFLOW 58 select HAVE_DMA_CONTIGUOUS 59 select HAVE_DYNAMIC_FTRACE 60 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 61 select HAVE_EXIT_THREAD 62 select HAVE_FAST_GUP 63 select HAVE_FTRACE_MCOUNT_RECORD 64 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_TRACER 66 select HAVE_GCC_PLUGINS 67 select HAVE_GENERIC_VDSO 68 select HAVE_IDE 69 select HAVE_IOREMAP_PROT 70 select HAVE_IRQ_EXIT_ON_IRQ_STACK 71 select HAVE_IRQ_TIME_ACCOUNTING 72 select HAVE_KPROBES 73 select HAVE_KRETPROBES 74 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 75 select HAVE_MEMBLOCK_NODE_MAP 76 select HAVE_MOD_ARCH_SPECIFIC 77 select HAVE_NMI 78 select HAVE_OPROFILE 79 select HAVE_PERF_EVENTS 80 select HAVE_REGS_AND_STACK_ACCESS_API 81 select HAVE_RSEQ 82 select HAVE_SPARSE_SYSCALL_NR 83 select HAVE_STACKPROTECTOR 84 select HAVE_SYSCALL_TRACEPOINTS 85 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 86 select IRQ_FORCED_THREADING 87 select ISA if EISA 88 select MODULES_USE_ELF_REL if MODULES 89 select MODULES_USE_ELF_RELA if MODULES && 64BIT 90 select PERF_USE_VMALLOC 91 select RTC_LIB 92 select SYSCTL_EXCEPTION_TRACE 93 select VIRT_TO_BUS 94 95config MIPS_FIXUP_BIGPHYS_ADDR 96 bool 97 98menu "Machine selection" 99 100choice 101 prompt "System type" 102 default MIPS_GENERIC 103 104config MIPS_GENERIC 105 bool "Generic board-agnostic MIPS kernel" 106 select BOOT_RAW 107 select BUILTIN_DTB 108 select CEVT_R4K 109 select CLKSRC_MIPS_GIC 110 select COMMON_CLK 111 select CPU_MIPSR2_IRQ_EI 112 select CPU_MIPSR2_IRQ_VI 113 select CSRC_R4K 114 select DMA_PERDEV_COHERENT 115 select HAVE_PCI 116 select IRQ_MIPS_CPU 117 select MIPS_AUTO_PFN_OFFSET 118 select MIPS_CPU_SCACHE 119 select MIPS_GIC 120 select MIPS_L1_CACHE_SHIFT_7 121 select NO_EXCEPT_FILL 122 select PCI_DRIVERS_GENERIC 123 select SMP_UP if SMP 124 select SWAP_IO_SPACE 125 select SYS_HAS_CPU_MIPS32_R1 126 select SYS_HAS_CPU_MIPS32_R2 127 select SYS_HAS_CPU_MIPS32_R6 128 select SYS_HAS_CPU_MIPS64_R1 129 select SYS_HAS_CPU_MIPS64_R2 130 select SYS_HAS_CPU_MIPS64_R6 131 select SYS_SUPPORTS_32BIT_KERNEL 132 select SYS_SUPPORTS_64BIT_KERNEL 133 select SYS_SUPPORTS_BIG_ENDIAN 134 select SYS_SUPPORTS_HIGHMEM 135 select SYS_SUPPORTS_LITTLE_ENDIAN 136 select SYS_SUPPORTS_MICROMIPS 137 select SYS_SUPPORTS_MIPS16 138 select SYS_SUPPORTS_MIPS_CPS 139 select SYS_SUPPORTS_MULTITHREADING 140 select SYS_SUPPORTS_RELOCATABLE 141 select SYS_SUPPORTS_SMARTMIPS 142 select UHI_BOOT 143 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 144 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 145 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 146 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 147 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 148 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 149 select USE_OF 150 help 151 Select this to build a kernel which aims to support multiple boards, 152 generally using a flattened device tree passed from the bootloader 153 using the boot protocol defined in the UHI (Unified Hosting 154 Interface) specification. 155 156config MIPS_ALCHEMY 157 bool "Alchemy processor based machines" 158 select PHYS_ADDR_T_64BIT 159 select CEVT_R4K 160 select CSRC_R4K 161 select IRQ_MIPS_CPU 162 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 163 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 164 select SYS_HAS_CPU_MIPS32_R1 165 select SYS_SUPPORTS_32BIT_KERNEL 166 select SYS_SUPPORTS_APM_EMULATION 167 select GPIOLIB 168 select SYS_SUPPORTS_ZBOOT 169 select COMMON_CLK 170 171config AR7 172 bool "Texas Instruments AR7" 173 select BOOT_ELF32 174 select DMA_NONCOHERENT 175 select CEVT_R4K 176 select CSRC_R4K 177 select IRQ_MIPS_CPU 178 select NO_EXCEPT_FILL 179 select SWAP_IO_SPACE 180 select SYS_HAS_CPU_MIPS32_R1 181 select SYS_HAS_EARLY_PRINTK 182 select SYS_SUPPORTS_32BIT_KERNEL 183 select SYS_SUPPORTS_LITTLE_ENDIAN 184 select SYS_SUPPORTS_MIPS16 185 select SYS_SUPPORTS_ZBOOT_UART16550 186 select GPIOLIB 187 select VLYNQ 188 select HAVE_CLK 189 help 190 Support for the Texas Instruments AR7 System-on-a-Chip 191 family: TNETD7100, 7200 and 7300. 192 193config ATH25 194 bool "Atheros AR231x/AR531x SoC support" 195 select CEVT_R4K 196 select CSRC_R4K 197 select DMA_NONCOHERENT 198 select IRQ_MIPS_CPU 199 select IRQ_DOMAIN 200 select SYS_HAS_CPU_MIPS32_R1 201 select SYS_SUPPORTS_BIG_ENDIAN 202 select SYS_SUPPORTS_32BIT_KERNEL 203 select SYS_HAS_EARLY_PRINTK 204 help 205 Support for Atheros AR231x and Atheros AR531x based boards 206 207config ATH79 208 bool "Atheros AR71XX/AR724X/AR913X based boards" 209 select ARCH_HAS_RESET_CONTROLLER 210 select BOOT_RAW 211 select CEVT_R4K 212 select CSRC_R4K 213 select DMA_NONCOHERENT 214 select GPIOLIB 215 select PINCTRL 216 select HAVE_CLK 217 select COMMON_CLK 218 select CLKDEV_LOOKUP 219 select IRQ_MIPS_CPU 220 select SYS_HAS_CPU_MIPS32_R2 221 select SYS_HAS_EARLY_PRINTK 222 select SYS_SUPPORTS_32BIT_KERNEL 223 select SYS_SUPPORTS_BIG_ENDIAN 224 select SYS_SUPPORTS_MIPS16 225 select SYS_SUPPORTS_ZBOOT_UART_PROM 226 select USE_OF 227 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 228 help 229 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 230 231config BMIPS_GENERIC 232 bool "Broadcom Generic BMIPS kernel" 233 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 234 select ARCH_HAS_PHYS_TO_DMA 235 select BOOT_RAW 236 select NO_EXCEPT_FILL 237 select USE_OF 238 select CEVT_R4K 239 select CSRC_R4K 240 select SYNC_R4K 241 select COMMON_CLK 242 select BCM6345_L1_IRQ 243 select BCM7038_L1_IRQ 244 select BCM7120_L2_IRQ 245 select BRCMSTB_L2_IRQ 246 select IRQ_MIPS_CPU 247 select DMA_NONCOHERENT 248 select SYS_SUPPORTS_32BIT_KERNEL 249 select SYS_SUPPORTS_LITTLE_ENDIAN 250 select SYS_SUPPORTS_BIG_ENDIAN 251 select SYS_SUPPORTS_HIGHMEM 252 select SYS_HAS_CPU_BMIPS32_3300 253 select SYS_HAS_CPU_BMIPS4350 254 select SYS_HAS_CPU_BMIPS4380 255 select SYS_HAS_CPU_BMIPS5000 256 select SWAP_IO_SPACE 257 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 258 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 259 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 260 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 261 select HARDIRQS_SW_RESEND 262 help 263 Build a generic DT-based kernel image that boots on select 264 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 265 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 266 must be set appropriately for your board. 267 268config BCM47XX 269 bool "Broadcom BCM47XX based boards" 270 select BOOT_RAW 271 select CEVT_R4K 272 select CSRC_R4K 273 select DMA_NONCOHERENT 274 select HAVE_PCI 275 select IRQ_MIPS_CPU 276 select SYS_HAS_CPU_MIPS32_R1 277 select NO_EXCEPT_FILL 278 select SYS_SUPPORTS_32BIT_KERNEL 279 select SYS_SUPPORTS_LITTLE_ENDIAN 280 select SYS_SUPPORTS_MIPS16 281 select SYS_SUPPORTS_ZBOOT 282 select SYS_HAS_EARLY_PRINTK 283 select USE_GENERIC_EARLY_PRINTK_8250 284 select GPIOLIB 285 select LEDS_GPIO_REGISTER 286 select BCM47XX_NVRAM 287 select BCM47XX_SPROM 288 select BCM47XX_SSB if !BCM47XX_BCMA 289 help 290 Support for BCM47XX based boards 291 292config BCM63XX 293 bool "Broadcom BCM63XX based boards" 294 select BOOT_RAW 295 select CEVT_R4K 296 select CSRC_R4K 297 select SYNC_R4K 298 select DMA_NONCOHERENT 299 select IRQ_MIPS_CPU 300 select SYS_SUPPORTS_32BIT_KERNEL 301 select SYS_SUPPORTS_BIG_ENDIAN 302 select SYS_HAS_EARLY_PRINTK 303 select SWAP_IO_SPACE 304 select GPIOLIB 305 select HAVE_CLK 306 select MIPS_L1_CACHE_SHIFT_4 307 select CLKDEV_LOOKUP 308 help 309 Support for BCM63XX based boards 310 311config MIPS_COBALT 312 bool "Cobalt Server" 313 select CEVT_R4K 314 select CSRC_R4K 315 select CEVT_GT641XX 316 select DMA_NONCOHERENT 317 select FORCE_PCI 318 select I8253 319 select I8259 320 select IRQ_MIPS_CPU 321 select IRQ_GT641XX 322 select PCI_GT64XXX_PCI0 323 select SYS_HAS_CPU_NEVADA 324 select SYS_HAS_EARLY_PRINTK 325 select SYS_SUPPORTS_32BIT_KERNEL 326 select SYS_SUPPORTS_64BIT_KERNEL 327 select SYS_SUPPORTS_LITTLE_ENDIAN 328 select USE_GENERIC_EARLY_PRINTK_8250 329 330config MACH_DECSTATION 331 bool "DECstations" 332 select BOOT_ELF32 333 select CEVT_DS1287 334 select CEVT_R4K if CPU_R4X00 335 select CSRC_IOASIC 336 select CSRC_R4K if CPU_R4X00 337 select CPU_DADDI_WORKAROUNDS if 64BIT 338 select CPU_R4000_WORKAROUNDS if 64BIT 339 select CPU_R4400_WORKAROUNDS if 64BIT 340 select DMA_NONCOHERENT 341 select NO_IOPORT_MAP 342 select IRQ_MIPS_CPU 343 select SYS_HAS_CPU_R3000 344 select SYS_HAS_CPU_R4X00 345 select SYS_SUPPORTS_32BIT_KERNEL 346 select SYS_SUPPORTS_64BIT_KERNEL 347 select SYS_SUPPORTS_LITTLE_ENDIAN 348 select SYS_SUPPORTS_128HZ 349 select SYS_SUPPORTS_256HZ 350 select SYS_SUPPORTS_1024HZ 351 select MIPS_L1_CACHE_SHIFT_4 352 help 353 This enables support for DEC's MIPS based workstations. For details 354 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 355 DECstation porting pages on <http://decstation.unix-ag.org/>. 356 357 If you have one of the following DECstation Models you definitely 358 want to choose R4xx0 for the CPU Type: 359 360 DECstation 5000/50 361 DECstation 5000/150 362 DECstation 5000/260 363 DECsystem 5900/260 364 365 otherwise choose R3000. 366 367config MACH_JAZZ 368 bool "Jazz family of machines" 369 select ARC_MEMORY 370 select ARC_PROMLIB 371 select ARCH_MIGHT_HAVE_PC_PARPORT 372 select ARCH_MIGHT_HAVE_PC_SERIO 373 select FW_ARC 374 select FW_ARC32 375 select ARCH_MAY_HAVE_PC_FDC 376 select CEVT_R4K 377 select CSRC_R4K 378 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 379 select GENERIC_ISA_DMA 380 select HAVE_PCSPKR_PLATFORM 381 select IRQ_MIPS_CPU 382 select I8253 383 select I8259 384 select ISA 385 select SYS_HAS_CPU_R4X00 386 select SYS_SUPPORTS_32BIT_KERNEL 387 select SYS_SUPPORTS_64BIT_KERNEL 388 select SYS_SUPPORTS_100HZ 389 help 390 This a family of machines based on the MIPS R4030 chipset which was 391 used by several vendors to build RISC/os and Windows NT workstations. 392 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 393 Olivetti M700-10 workstations. 394 395config MACH_INGENIC 396 bool "Ingenic SoC based machines" 397 select SYS_SUPPORTS_32BIT_KERNEL 398 select SYS_SUPPORTS_LITTLE_ENDIAN 399 select SYS_SUPPORTS_ZBOOT_UART16550 400 select CPU_SUPPORTS_HUGEPAGES 401 select DMA_NONCOHERENT 402 select IRQ_MIPS_CPU 403 select PINCTRL 404 select GPIOLIB 405 select COMMON_CLK 406 select GENERIC_IRQ_CHIP 407 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 408 select USE_OF 409 410config LANTIQ 411 bool "Lantiq based platforms" 412 select DMA_NONCOHERENT 413 select IRQ_MIPS_CPU 414 select CEVT_R4K 415 select CSRC_R4K 416 select SYS_HAS_CPU_MIPS32_R1 417 select SYS_HAS_CPU_MIPS32_R2 418 select SYS_SUPPORTS_BIG_ENDIAN 419 select SYS_SUPPORTS_32BIT_KERNEL 420 select SYS_SUPPORTS_MIPS16 421 select SYS_SUPPORTS_MULTITHREADING 422 select SYS_SUPPORTS_VPE_LOADER 423 select SYS_HAS_EARLY_PRINTK 424 select GPIOLIB 425 select SWAP_IO_SPACE 426 select BOOT_RAW 427 select CLKDEV_LOOKUP 428 select USE_OF 429 select PINCTRL 430 select PINCTRL_LANTIQ 431 select ARCH_HAS_RESET_CONTROLLER 432 select RESET_CONTROLLER 433 434config MACH_LOONGSON32 435 bool "Loongson 32-bit family of machines" 436 select SYS_SUPPORTS_ZBOOT 437 help 438 This enables support for the Loongson-1 family of machines. 439 440 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 441 the Institute of Computing Technology (ICT), Chinese Academy of 442 Sciences (CAS). 443 444config MACH_LOONGSON2EF 445 bool "Loongson-2E/F family of machines" 446 select SYS_SUPPORTS_ZBOOT 447 help 448 This enables the support of early Loongson-2E/F family of machines. 449 450config MACH_LOONGSON64 451 bool "Loongson 64-bit family of machines" 452 select ARCH_SPARSEMEM_ENABLE 453 select ARCH_MIGHT_HAVE_PC_PARPORT 454 select ARCH_MIGHT_HAVE_PC_SERIO 455 select GENERIC_ISA_DMA_SUPPORT_BROKEN 456 select BOOT_ELF32 457 select BOARD_SCACHE 458 select CSRC_R4K 459 select CEVT_R4K 460 select CPU_HAS_WB 461 select FORCE_PCI 462 select ISA 463 select I8259 464 select IRQ_MIPS_CPU 465 select NR_CPUS_DEFAULT_64 466 select USE_GENERIC_EARLY_PRINTK_8250 467 select SYS_HAS_CPU_LOONGSON64 468 select SYS_HAS_EARLY_PRINTK 469 select SYS_SUPPORTS_SMP 470 select SYS_SUPPORTS_HOTPLUG_CPU 471 select SYS_SUPPORTS_NUMA 472 select SYS_SUPPORTS_64BIT_KERNEL 473 select SYS_SUPPORTS_HIGHMEM 474 select SYS_SUPPORTS_LITTLE_ENDIAN 475 select SYS_SUPPORTS_ZBOOT 476 select ZONE_DMA32 477 select NUMA 478 select COMMON_CLK 479 select USE_OF 480 select BUILTIN_DTB 481 help 482 This enables the support of Loongson-2/3 family of machines. 483 484 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 485 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 486 and Loongson-2F which will be removed), developed by the Institute 487 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 488 489config MACH_PISTACHIO 490 bool "IMG Pistachio SoC based boards" 491 select BOOT_ELF32 492 select BOOT_RAW 493 select CEVT_R4K 494 select CLKSRC_MIPS_GIC 495 select COMMON_CLK 496 select CSRC_R4K 497 select DMA_NONCOHERENT 498 select GPIOLIB 499 select IRQ_MIPS_CPU 500 select MFD_SYSCON 501 select MIPS_CPU_SCACHE 502 select MIPS_GIC 503 select PINCTRL 504 select REGULATOR 505 select SYS_HAS_CPU_MIPS32_R2 506 select SYS_SUPPORTS_32BIT_KERNEL 507 select SYS_SUPPORTS_LITTLE_ENDIAN 508 select SYS_SUPPORTS_MIPS_CPS 509 select SYS_SUPPORTS_MULTITHREADING 510 select SYS_SUPPORTS_RELOCATABLE 511 select SYS_SUPPORTS_ZBOOT 512 select SYS_HAS_EARLY_PRINTK 513 select USE_GENERIC_EARLY_PRINTK_8250 514 select USE_OF 515 help 516 This enables support for the IMG Pistachio SoC platform. 517 518config MIPS_MALTA 519 bool "MIPS Malta board" 520 select ARCH_MAY_HAVE_PC_FDC 521 select ARCH_MIGHT_HAVE_PC_PARPORT 522 select ARCH_MIGHT_HAVE_PC_SERIO 523 select BOOT_ELF32 524 select BOOT_RAW 525 select BUILTIN_DTB 526 select CEVT_R4K 527 select CLKSRC_MIPS_GIC 528 select COMMON_CLK 529 select CSRC_R4K 530 select DMA_MAYBE_COHERENT 531 select GENERIC_ISA_DMA 532 select HAVE_PCSPKR_PLATFORM 533 select HAVE_PCI 534 select I8253 535 select I8259 536 select IRQ_MIPS_CPU 537 select MIPS_BONITO64 538 select MIPS_CPU_SCACHE 539 select MIPS_GIC 540 select MIPS_L1_CACHE_SHIFT_6 541 select MIPS_MSC 542 select PCI_GT64XXX_PCI0 543 select SMP_UP if SMP 544 select SWAP_IO_SPACE 545 select SYS_HAS_CPU_MIPS32_R1 546 select SYS_HAS_CPU_MIPS32_R2 547 select SYS_HAS_CPU_MIPS32_R3_5 548 select SYS_HAS_CPU_MIPS32_R5 549 select SYS_HAS_CPU_MIPS32_R6 550 select SYS_HAS_CPU_MIPS64_R1 551 select SYS_HAS_CPU_MIPS64_R2 552 select SYS_HAS_CPU_MIPS64_R6 553 select SYS_HAS_CPU_NEVADA 554 select SYS_HAS_CPU_RM7000 555 select SYS_SUPPORTS_32BIT_KERNEL 556 select SYS_SUPPORTS_64BIT_KERNEL 557 select SYS_SUPPORTS_BIG_ENDIAN 558 select SYS_SUPPORTS_HIGHMEM 559 select SYS_SUPPORTS_LITTLE_ENDIAN 560 select SYS_SUPPORTS_MICROMIPS 561 select SYS_SUPPORTS_MIPS16 562 select SYS_SUPPORTS_MIPS_CMP 563 select SYS_SUPPORTS_MIPS_CPS 564 select SYS_SUPPORTS_MULTITHREADING 565 select SYS_SUPPORTS_RELOCATABLE 566 select SYS_SUPPORTS_SMARTMIPS 567 select SYS_SUPPORTS_VPE_LOADER 568 select SYS_SUPPORTS_ZBOOT 569 select USE_OF 570 select ZONE_DMA32 if 64BIT 571 help 572 This enables support for the MIPS Technologies Malta evaluation 573 board. 574 575config MACH_PIC32 576 bool "Microchip PIC32 Family" 577 help 578 This enables support for the Microchip PIC32 family of platforms. 579 580 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 581 microcontrollers. 582 583config MACH_VR41XX 584 bool "NEC VR4100 series based machines" 585 select CEVT_R4K 586 select CSRC_R4K 587 select SYS_HAS_CPU_VR41XX 588 select SYS_SUPPORTS_MIPS16 589 select GPIOLIB 590 591config NXP_STB220 592 bool "NXP STB220 board" 593 select SOC_PNX833X 594 help 595 Support for NXP Semiconductors STB220 Development Board. 596 597config NXP_STB225 598 bool "NXP 225 board" 599 select SOC_PNX833X 600 select SOC_PNX8335 601 help 602 Support for NXP Semiconductors STB225 Development Board. 603 604config RALINK 605 bool "Ralink based machines" 606 select CEVT_R4K 607 select CSRC_R4K 608 select BOOT_RAW 609 select DMA_NONCOHERENT 610 select IRQ_MIPS_CPU 611 select USE_OF 612 select SYS_HAS_CPU_MIPS32_R1 613 select SYS_HAS_CPU_MIPS32_R2 614 select SYS_SUPPORTS_32BIT_KERNEL 615 select SYS_SUPPORTS_LITTLE_ENDIAN 616 select SYS_SUPPORTS_MIPS16 617 select SYS_HAS_EARLY_PRINTK 618 select CLKDEV_LOOKUP 619 select ARCH_HAS_RESET_CONTROLLER 620 select RESET_CONTROLLER 621 622config SGI_IP22 623 bool "SGI IP22 (Indy/Indigo2)" 624 select ARC_MEMORY 625 select ARC_PROMLIB 626 select FW_ARC 627 select FW_ARC32 628 select ARCH_MIGHT_HAVE_PC_SERIO 629 select BOOT_ELF32 630 select CEVT_R4K 631 select CSRC_R4K 632 select DEFAULT_SGI_PARTITION 633 select DMA_NONCOHERENT 634 select HAVE_EISA 635 select I8253 636 select I8259 637 select IP22_CPU_SCACHE 638 select IRQ_MIPS_CPU 639 select GENERIC_ISA_DMA_SUPPORT_BROKEN 640 select SGI_HAS_I8042 641 select SGI_HAS_INDYDOG 642 select SGI_HAS_HAL2 643 select SGI_HAS_SEEQ 644 select SGI_HAS_WD93 645 select SGI_HAS_ZILOG 646 select SWAP_IO_SPACE 647 select SYS_HAS_CPU_R4X00 648 select SYS_HAS_CPU_R5000 649 select SYS_HAS_EARLY_PRINTK 650 select SYS_SUPPORTS_32BIT_KERNEL 651 select SYS_SUPPORTS_64BIT_KERNEL 652 select SYS_SUPPORTS_BIG_ENDIAN 653 select MIPS_L1_CACHE_SHIFT_7 654 help 655 This are the SGI Indy, Challenge S and Indigo2, as well as certain 656 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 657 that runs on these, say Y here. 658 659config SGI_IP27 660 bool "SGI IP27 (Origin200/2000)" 661 select ARCH_HAS_PHYS_TO_DMA 662 select ARCH_SPARSEMEM_ENABLE 663 select FW_ARC 664 select FW_ARC64 665 select ARC_CMDLINE_ONLY 666 select BOOT_ELF64 667 select DEFAULT_SGI_PARTITION 668 select SYS_HAS_EARLY_PRINTK 669 select HAVE_PCI 670 select IRQ_MIPS_CPU 671 select IRQ_DOMAIN_HIERARCHY 672 select NR_CPUS_DEFAULT_64 673 select PCI_DRIVERS_GENERIC 674 select PCI_XTALK_BRIDGE 675 select SYS_HAS_CPU_R10000 676 select SYS_SUPPORTS_64BIT_KERNEL 677 select SYS_SUPPORTS_BIG_ENDIAN 678 select SYS_SUPPORTS_NUMA 679 select SYS_SUPPORTS_SMP 680 select MIPS_L1_CACHE_SHIFT_7 681 help 682 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 683 workstations. To compile a Linux kernel that runs on these, say Y 684 here. 685 686config SGI_IP28 687 bool "SGI IP28 (Indigo2 R10k)" 688 select ARC_MEMORY 689 select ARC_PROMLIB 690 select FW_ARC 691 select FW_ARC64 692 select ARCH_MIGHT_HAVE_PC_SERIO 693 select BOOT_ELF64 694 select CEVT_R4K 695 select CSRC_R4K 696 select DEFAULT_SGI_PARTITION 697 select DMA_NONCOHERENT 698 select GENERIC_ISA_DMA_SUPPORT_BROKEN 699 select IRQ_MIPS_CPU 700 select HAVE_EISA 701 select I8253 702 select I8259 703 select SGI_HAS_I8042 704 select SGI_HAS_INDYDOG 705 select SGI_HAS_HAL2 706 select SGI_HAS_SEEQ 707 select SGI_HAS_WD93 708 select SGI_HAS_ZILOG 709 select SWAP_IO_SPACE 710 select SYS_HAS_CPU_R10000 711 select SYS_HAS_EARLY_PRINTK 712 select SYS_SUPPORTS_64BIT_KERNEL 713 select SYS_SUPPORTS_BIG_ENDIAN 714 select MIPS_L1_CACHE_SHIFT_7 715 help 716 This is the SGI Indigo2 with R10000 processor. To compile a Linux 717 kernel that runs on these, say Y here. 718 719config SGI_IP30 720 bool "SGI IP30 (Octane/Octane2)" 721 select ARCH_HAS_PHYS_TO_DMA 722 select FW_ARC 723 select FW_ARC64 724 select BOOT_ELF64 725 select CEVT_R4K 726 select CSRC_R4K 727 select SYNC_R4K if SMP 728 select ZONE_DMA32 729 select HAVE_PCI 730 select IRQ_MIPS_CPU 731 select IRQ_DOMAIN_HIERARCHY 732 select NR_CPUS_DEFAULT_2 733 select PCI_DRIVERS_GENERIC 734 select PCI_XTALK_BRIDGE 735 select SYS_HAS_EARLY_PRINTK 736 select SYS_HAS_CPU_R10000 737 select SYS_SUPPORTS_64BIT_KERNEL 738 select SYS_SUPPORTS_BIG_ENDIAN 739 select SYS_SUPPORTS_SMP 740 select MIPS_L1_CACHE_SHIFT_7 741 select ARC_MEMORY 742 help 743 These are the SGI Octane and Octane2 graphics workstations. To 744 compile a Linux kernel that runs on these, say Y here. 745 746config SGI_IP32 747 bool "SGI IP32 (O2)" 748 select ARC_MEMORY 749 select ARC_PROMLIB 750 select ARCH_HAS_PHYS_TO_DMA 751 select FW_ARC 752 select FW_ARC32 753 select BOOT_ELF32 754 select CEVT_R4K 755 select CSRC_R4K 756 select DMA_NONCOHERENT 757 select HAVE_PCI 758 select IRQ_MIPS_CPU 759 select R5000_CPU_SCACHE 760 select RM7000_CPU_SCACHE 761 select SYS_HAS_CPU_R5000 762 select SYS_HAS_CPU_R10000 if BROKEN 763 select SYS_HAS_CPU_RM7000 764 select SYS_HAS_CPU_NEVADA 765 select SYS_SUPPORTS_64BIT_KERNEL 766 select SYS_SUPPORTS_BIG_ENDIAN 767 help 768 If you want this kernel to run on SGI O2 workstation, say Y here. 769 770config SIBYTE_CRHINE 771 bool "Sibyte BCM91120C-CRhine" 772 select BOOT_ELF32 773 select SIBYTE_BCM1120 774 select SWAP_IO_SPACE 775 select SYS_HAS_CPU_SB1 776 select SYS_SUPPORTS_BIG_ENDIAN 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_CARMEL 780 bool "Sibyte BCM91120x-Carmel" 781 select BOOT_ELF32 782 select SIBYTE_BCM1120 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_CRHONE 789 bool "Sibyte BCM91125C-CRhone" 790 select BOOT_ELF32 791 select SIBYTE_BCM1125 792 select SWAP_IO_SPACE 793 select SYS_HAS_CPU_SB1 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_HIGHMEM 796 select SYS_SUPPORTS_LITTLE_ENDIAN 797 798config SIBYTE_RHONE 799 bool "Sibyte BCM91125E-Rhone" 800 select BOOT_ELF32 801 select SIBYTE_BCM1125H 802 select SWAP_IO_SPACE 803 select SYS_HAS_CPU_SB1 804 select SYS_SUPPORTS_BIG_ENDIAN 805 select SYS_SUPPORTS_LITTLE_ENDIAN 806 807config SIBYTE_SWARM 808 bool "Sibyte BCM91250A-SWARM" 809 select BOOT_ELF32 810 select HAVE_PATA_PLATFORM 811 select SIBYTE_SB1250 812 select SWAP_IO_SPACE 813 select SYS_HAS_CPU_SB1 814 select SYS_SUPPORTS_BIG_ENDIAN 815 select SYS_SUPPORTS_HIGHMEM 816 select SYS_SUPPORTS_LITTLE_ENDIAN 817 select ZONE_DMA32 if 64BIT 818 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 819 820config SIBYTE_LITTLESUR 821 bool "Sibyte BCM91250C2-LittleSur" 822 select BOOT_ELF32 823 select HAVE_PATA_PLATFORM 824 select SIBYTE_SB1250 825 select SWAP_IO_SPACE 826 select SYS_HAS_CPU_SB1 827 select SYS_SUPPORTS_BIG_ENDIAN 828 select SYS_SUPPORTS_HIGHMEM 829 select SYS_SUPPORTS_LITTLE_ENDIAN 830 select ZONE_DMA32 if 64BIT 831 832config SIBYTE_SENTOSA 833 bool "Sibyte BCM91250E-Sentosa" 834 select BOOT_ELF32 835 select SIBYTE_SB1250 836 select SWAP_IO_SPACE 837 select SYS_HAS_CPU_SB1 838 select SYS_SUPPORTS_BIG_ENDIAN 839 select SYS_SUPPORTS_LITTLE_ENDIAN 840 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 841 842config SIBYTE_BIGSUR 843 bool "Sibyte BCM91480B-BigSur" 844 select BOOT_ELF32 845 select NR_CPUS_DEFAULT_4 846 select SIBYTE_BCM1x80 847 select SWAP_IO_SPACE 848 select SYS_HAS_CPU_SB1 849 select SYS_SUPPORTS_BIG_ENDIAN 850 select SYS_SUPPORTS_HIGHMEM 851 select SYS_SUPPORTS_LITTLE_ENDIAN 852 select ZONE_DMA32 if 64BIT 853 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 854 855config SNI_RM 856 bool "SNI RM200/300/400" 857 select ARC_MEMORY 858 select ARC_PROMLIB 859 select FW_ARC if CPU_LITTLE_ENDIAN 860 select FW_ARC32 if CPU_LITTLE_ENDIAN 861 select FW_SNIPROM if CPU_BIG_ENDIAN 862 select ARCH_MAY_HAVE_PC_FDC 863 select ARCH_MIGHT_HAVE_PC_PARPORT 864 select ARCH_MIGHT_HAVE_PC_SERIO 865 select BOOT_ELF32 866 select CEVT_R4K 867 select CSRC_R4K 868 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 869 select DMA_NONCOHERENT 870 select GENERIC_ISA_DMA 871 select HAVE_EISA 872 select HAVE_PCSPKR_PLATFORM 873 select HAVE_PCI 874 select IRQ_MIPS_CPU 875 select I8253 876 select I8259 877 select ISA 878 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 879 select SYS_HAS_CPU_R4X00 880 select SYS_HAS_CPU_R5000 881 select SYS_HAS_CPU_R10000 882 select R5000_CPU_SCACHE 883 select SYS_HAS_EARLY_PRINTK 884 select SYS_SUPPORTS_32BIT_KERNEL 885 select SYS_SUPPORTS_64BIT_KERNEL 886 select SYS_SUPPORTS_BIG_ENDIAN 887 select SYS_SUPPORTS_HIGHMEM 888 select SYS_SUPPORTS_LITTLE_ENDIAN 889 help 890 The SNI RM200/300/400 are MIPS-based machines manufactured by 891 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 892 Technology and now in turn merged with Fujitsu. Say Y here to 893 support this machine type. 894 895config MACH_TX39XX 896 bool "Toshiba TX39 series based machines" 897 898config MACH_TX49XX 899 bool "Toshiba TX49 series based machines" 900 901config MIKROTIK_RB532 902 bool "Mikrotik RB532 boards" 903 select CEVT_R4K 904 select CSRC_R4K 905 select DMA_NONCOHERENT 906 select HAVE_PCI 907 select IRQ_MIPS_CPU 908 select SYS_HAS_CPU_MIPS32_R1 909 select SYS_SUPPORTS_32BIT_KERNEL 910 select SYS_SUPPORTS_LITTLE_ENDIAN 911 select SWAP_IO_SPACE 912 select BOOT_RAW 913 select GPIOLIB 914 select MIPS_L1_CACHE_SHIFT_4 915 help 916 Support the Mikrotik(tm) RouterBoard 532 series, 917 based on the IDT RC32434 SoC. 918 919config CAVIUM_OCTEON_SOC 920 bool "Cavium Networks Octeon SoC based boards" 921 select CEVT_R4K 922 select ARCH_HAS_PHYS_TO_DMA 923 select HAVE_RAPIDIO 924 select PHYS_ADDR_T_64BIT 925 select SYS_SUPPORTS_64BIT_KERNEL 926 select SYS_SUPPORTS_BIG_ENDIAN 927 select EDAC_SUPPORT 928 select EDAC_ATOMIC_SCRUB 929 select SYS_SUPPORTS_LITTLE_ENDIAN 930 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 931 select SYS_HAS_EARLY_PRINTK 932 select SYS_HAS_CPU_CAVIUM_OCTEON 933 select HAVE_PCI 934 select HAVE_PLAT_DELAY 935 select HAVE_PLAT_FW_INIT_CMDLINE 936 select HAVE_PLAT_MEMCPY 937 select ZONE_DMA32 938 select HOLES_IN_ZONE 939 select GPIOLIB 940 select USE_OF 941 select ARCH_SPARSEMEM_ENABLE 942 select SYS_SUPPORTS_SMP 943 select NR_CPUS_DEFAULT_64 944 select MIPS_NR_CPU_NR_MAP_1024 945 select BUILTIN_DTB 946 select MTD_COMPLEX_MAPPINGS 947 select SWIOTLB 948 select SYS_SUPPORTS_RELOCATABLE 949 help 950 This option supports all of the Octeon reference boards from Cavium 951 Networks. It builds a kernel that dynamically determines the Octeon 952 CPU type and supports all known board reference implementations. 953 Some of the supported boards are: 954 EBT3000 955 EBH3000 956 EBH3100 957 Thunder 958 Kodama 959 Hikari 960 Say Y here for most Octeon reference boards. 961 962config NLM_XLR_BOARD 963 bool "Netlogic XLR/XLS based systems" 964 select BOOT_ELF32 965 select NLM_COMMON 966 select SYS_HAS_CPU_XLR 967 select SYS_SUPPORTS_SMP 968 select HAVE_PCI 969 select SWAP_IO_SPACE 970 select SYS_SUPPORTS_32BIT_KERNEL 971 select SYS_SUPPORTS_64BIT_KERNEL 972 select PHYS_ADDR_T_64BIT 973 select SYS_SUPPORTS_BIG_ENDIAN 974 select SYS_SUPPORTS_HIGHMEM 975 select NR_CPUS_DEFAULT_32 976 select CEVT_R4K 977 select CSRC_R4K 978 select IRQ_MIPS_CPU 979 select ZONE_DMA32 if 64BIT 980 select SYNC_R4K 981 select SYS_HAS_EARLY_PRINTK 982 select SYS_SUPPORTS_ZBOOT 983 select SYS_SUPPORTS_ZBOOT_UART16550 984 help 985 Support for systems based on Netlogic XLR and XLS processors. 986 Say Y here if you have a XLR or XLS based board. 987 988config NLM_XLP_BOARD 989 bool "Netlogic XLP based systems" 990 select BOOT_ELF32 991 select NLM_COMMON 992 select SYS_HAS_CPU_XLP 993 select SYS_SUPPORTS_SMP 994 select HAVE_PCI 995 select SYS_SUPPORTS_32BIT_KERNEL 996 select SYS_SUPPORTS_64BIT_KERNEL 997 select PHYS_ADDR_T_64BIT 998 select GPIOLIB 999 select SYS_SUPPORTS_BIG_ENDIAN 1000 select SYS_SUPPORTS_LITTLE_ENDIAN 1001 select SYS_SUPPORTS_HIGHMEM 1002 select NR_CPUS_DEFAULT_32 1003 select CEVT_R4K 1004 select CSRC_R4K 1005 select IRQ_MIPS_CPU 1006 select ZONE_DMA32 if 64BIT 1007 select SYNC_R4K 1008 select SYS_HAS_EARLY_PRINTK 1009 select USE_OF 1010 select SYS_SUPPORTS_ZBOOT 1011 select SYS_SUPPORTS_ZBOOT_UART16550 1012 help 1013 This board is based on Netlogic XLP Processor. 1014 Say Y here if you have a XLP based board. 1015 1016config MIPS_PARAVIRT 1017 bool "Para-Virtualized guest system" 1018 select CEVT_R4K 1019 select CSRC_R4K 1020 select SYS_SUPPORTS_64BIT_KERNEL 1021 select SYS_SUPPORTS_32BIT_KERNEL 1022 select SYS_SUPPORTS_BIG_ENDIAN 1023 select SYS_SUPPORTS_SMP 1024 select NR_CPUS_DEFAULT_4 1025 select SYS_HAS_EARLY_PRINTK 1026 select SYS_HAS_CPU_MIPS32_R2 1027 select SYS_HAS_CPU_MIPS64_R2 1028 select SYS_HAS_CPU_CAVIUM_OCTEON 1029 select HAVE_PCI 1030 select SWAP_IO_SPACE 1031 help 1032 This option supports guest running under ???? 1033 1034endchoice 1035 1036source "arch/mips/alchemy/Kconfig" 1037source "arch/mips/ath25/Kconfig" 1038source "arch/mips/ath79/Kconfig" 1039source "arch/mips/bcm47xx/Kconfig" 1040source "arch/mips/bcm63xx/Kconfig" 1041source "arch/mips/bmips/Kconfig" 1042source "arch/mips/generic/Kconfig" 1043source "arch/mips/jazz/Kconfig" 1044source "arch/mips/jz4740/Kconfig" 1045source "arch/mips/lantiq/Kconfig" 1046source "arch/mips/pic32/Kconfig" 1047source "arch/mips/pistachio/Kconfig" 1048source "arch/mips/ralink/Kconfig" 1049source "arch/mips/sgi-ip27/Kconfig" 1050source "arch/mips/sibyte/Kconfig" 1051source "arch/mips/txx9/Kconfig" 1052source "arch/mips/vr41xx/Kconfig" 1053source "arch/mips/cavium-octeon/Kconfig" 1054source "arch/mips/loongson2ef/Kconfig" 1055source "arch/mips/loongson32/Kconfig" 1056source "arch/mips/loongson64/Kconfig" 1057source "arch/mips/netlogic/Kconfig" 1058source "arch/mips/paravirt/Kconfig" 1059 1060endmenu 1061 1062config GENERIC_HWEIGHT 1063 bool 1064 default y 1065 1066config GENERIC_CALIBRATE_DELAY 1067 bool 1068 default y 1069 1070config SCHED_OMIT_FRAME_POINTER 1071 bool 1072 default y 1073 1074# 1075# Select some configuration options automatically based on user selections. 1076# 1077config FW_ARC 1078 bool 1079 1080config ARCH_MAY_HAVE_PC_FDC 1081 bool 1082 1083config BOOT_RAW 1084 bool 1085 1086config CEVT_BCM1480 1087 bool 1088 1089config CEVT_DS1287 1090 bool 1091 1092config CEVT_GT641XX 1093 bool 1094 1095config CEVT_R4K 1096 bool 1097 1098config CEVT_SB1250 1099 bool 1100 1101config CEVT_TXX9 1102 bool 1103 1104config CSRC_BCM1480 1105 bool 1106 1107config CSRC_IOASIC 1108 bool 1109 1110config CSRC_R4K 1111 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1112 bool 1113 1114config CSRC_SB1250 1115 bool 1116 1117config MIPS_CLOCK_VSYSCALL 1118 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1119 1120config GPIO_TXX9 1121 select GPIOLIB 1122 bool 1123 1124config FW_CFE 1125 bool 1126 1127config ARCH_SUPPORTS_UPROBES 1128 bool 1129 1130config DMA_MAYBE_COHERENT 1131 select ARCH_HAS_DMA_COHERENCE_H 1132 select DMA_NONCOHERENT 1133 bool 1134 1135config DMA_PERDEV_COHERENT 1136 bool 1137 select ARCH_HAS_SETUP_DMA_OPS 1138 select DMA_NONCOHERENT 1139 1140config DMA_NONCOHERENT 1141 bool 1142 # 1143 # MIPS allows mixing "slightly different" Cacheability and Coherency 1144 # Attribute bits. It is believed that the uncached access through 1145 # KSEG1 and the implementation specific "uncached accelerated" used 1146 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1147 # significant advantages. 1148 # 1149 select ARCH_HAS_DMA_WRITE_COMBINE 1150 select ARCH_HAS_DMA_PREP_COHERENT 1151 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1152 select ARCH_HAS_DMA_SET_UNCACHED 1153 select DMA_NONCOHERENT_MMAP 1154 select DMA_NONCOHERENT_CACHE_SYNC 1155 select NEED_DMA_MAP_STATE 1156 1157config SYS_HAS_EARLY_PRINTK 1158 bool 1159 1160config SYS_SUPPORTS_HOTPLUG_CPU 1161 bool 1162 1163config MIPS_BONITO64 1164 bool 1165 1166config MIPS_MSC 1167 bool 1168 1169config SYNC_R4K 1170 bool 1171 1172config MIPS_MACHINE 1173 def_bool n 1174 1175config NO_IOPORT_MAP 1176 def_bool n 1177 1178config GENERIC_CSUM 1179 def_bool CPU_NO_LOAD_STORE_LR 1180 1181config GENERIC_ISA_DMA 1182 bool 1183 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1184 select ISA_DMA_API 1185 1186config GENERIC_ISA_DMA_SUPPORT_BROKEN 1187 bool 1188 select GENERIC_ISA_DMA 1189 1190config HAVE_PLAT_DELAY 1191 bool 1192 1193config HAVE_PLAT_FW_INIT_CMDLINE 1194 bool 1195 1196config HAVE_PLAT_MEMCPY 1197 bool 1198 1199config ISA_DMA_API 1200 bool 1201 1202config HOLES_IN_ZONE 1203 bool 1204 1205config SYS_SUPPORTS_RELOCATABLE 1206 bool 1207 help 1208 Selected if the platform supports relocating the kernel. 1209 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1210 to allow access to command line and entropy sources. 1211 1212config MIPS_CBPF_JIT 1213 def_bool y 1214 depends on BPF_JIT && HAVE_CBPF_JIT 1215 1216config MIPS_EBPF_JIT 1217 def_bool y 1218 depends on BPF_JIT && HAVE_EBPF_JIT 1219 1220 1221# 1222# Endianness selection. Sufficiently obscure so many users don't know what to 1223# answer,so we try hard to limit the available choices. Also the use of a 1224# choice statement should be more obvious to the user. 1225# 1226choice 1227 prompt "Endianness selection" 1228 help 1229 Some MIPS machines can be configured for either little or big endian 1230 byte order. These modes require different kernels and a different 1231 Linux distribution. In general there is one preferred byteorder for a 1232 particular system but some systems are just as commonly used in the 1233 one or the other endianness. 1234 1235config CPU_BIG_ENDIAN 1236 bool "Big endian" 1237 depends on SYS_SUPPORTS_BIG_ENDIAN 1238 1239config CPU_LITTLE_ENDIAN 1240 bool "Little endian" 1241 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1242 1243endchoice 1244 1245config EXPORT_UASM 1246 bool 1247 1248config SYS_SUPPORTS_APM_EMULATION 1249 bool 1250 1251config SYS_SUPPORTS_BIG_ENDIAN 1252 bool 1253 1254config SYS_SUPPORTS_LITTLE_ENDIAN 1255 bool 1256 1257config SYS_SUPPORTS_HUGETLBFS 1258 bool 1259 depends on CPU_SUPPORTS_HUGEPAGES 1260 default y 1261 1262config MIPS_HUGE_TLB_SUPPORT 1263 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1264 1265config IRQ_CPU_RM7K 1266 bool 1267 1268config IRQ_MSP_SLP 1269 bool 1270 1271config IRQ_MSP_CIC 1272 bool 1273 1274config IRQ_TXX9 1275 bool 1276 1277config IRQ_GT641XX 1278 bool 1279 1280config PCI_GT64XXX_PCI0 1281 bool 1282 1283config PCI_XTALK_BRIDGE 1284 bool 1285 1286config NO_EXCEPT_FILL 1287 bool 1288 1289config SOC_PNX833X 1290 bool 1291 select CEVT_R4K 1292 select CSRC_R4K 1293 select IRQ_MIPS_CPU 1294 select DMA_NONCOHERENT 1295 select SYS_HAS_CPU_MIPS32_R2 1296 select SYS_SUPPORTS_32BIT_KERNEL 1297 select SYS_SUPPORTS_LITTLE_ENDIAN 1298 select SYS_SUPPORTS_BIG_ENDIAN 1299 select SYS_SUPPORTS_MIPS16 1300 select CPU_MIPSR2_IRQ_VI 1301 1302config SOC_PNX8335 1303 bool 1304 select SOC_PNX833X 1305 1306config MIPS_SPRAM 1307 bool 1308 1309config SWAP_IO_SPACE 1310 bool 1311 1312config SGI_HAS_INDYDOG 1313 bool 1314 1315config SGI_HAS_HAL2 1316 bool 1317 1318config SGI_HAS_SEEQ 1319 bool 1320 1321config SGI_HAS_WD93 1322 bool 1323 1324config SGI_HAS_ZILOG 1325 bool 1326 1327config SGI_HAS_I8042 1328 bool 1329 1330config DEFAULT_SGI_PARTITION 1331 bool 1332 1333config FW_ARC32 1334 bool 1335 1336config FW_SNIPROM 1337 bool 1338 1339config BOOT_ELF32 1340 bool 1341 1342config MIPS_L1_CACHE_SHIFT_4 1343 bool 1344 1345config MIPS_L1_CACHE_SHIFT_5 1346 bool 1347 1348config MIPS_L1_CACHE_SHIFT_6 1349 bool 1350 1351config MIPS_L1_CACHE_SHIFT_7 1352 bool 1353 1354config MIPS_L1_CACHE_SHIFT 1355 int 1356 default "7" if MIPS_L1_CACHE_SHIFT_7 1357 default "6" if MIPS_L1_CACHE_SHIFT_6 1358 default "5" if MIPS_L1_CACHE_SHIFT_5 1359 default "4" if MIPS_L1_CACHE_SHIFT_4 1360 default "5" 1361 1362config ARC_CMDLINE_ONLY 1363 bool 1364 1365config ARC_CONSOLE 1366 bool "ARC console support" 1367 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1368 1369config ARC_MEMORY 1370 bool 1371 1372config ARC_PROMLIB 1373 bool 1374 1375config FW_ARC64 1376 bool 1377 1378config BOOT_ELF64 1379 bool 1380 1381menu "CPU selection" 1382 1383choice 1384 prompt "CPU type" 1385 default CPU_R4X00 1386 1387config CPU_LOONGSON64 1388 bool "Loongson 64-bit CPU" 1389 depends on SYS_HAS_CPU_LOONGSON64 1390 select ARCH_HAS_PHYS_TO_DMA 1391 select CPU_MIPSR2 1392 select CPU_HAS_PREFETCH 1393 select CPU_SUPPORTS_64BIT_KERNEL 1394 select CPU_SUPPORTS_HIGHMEM 1395 select CPU_SUPPORTS_HUGEPAGES 1396 select CPU_SUPPORTS_MSA 1397 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1398 select CPU_MIPSR2_IRQ_VI 1399 select WEAK_ORDERING 1400 select WEAK_REORDERING_BEYOND_LLSC 1401 select MIPS_ASID_BITS_VARIABLE 1402 select MIPS_PGD_C0_CONTEXT 1403 select MIPS_L1_CACHE_SHIFT_6 1404 select GPIOLIB 1405 select SWIOTLB 1406 help 1407 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1408 cores implements the MIPS64R2 instruction set with many extensions, 1409 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1410 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1411 Loongson-2E/2F is not covered here and will be removed in future. 1412 1413config LOONGSON3_ENHANCEMENT 1414 bool "New Loongson-3 CPU Enhancements" 1415 default n 1416 depends on CPU_LOONGSON64 1417 help 1418 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1419 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1420 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1421 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1422 Fast TLB refill support, etc. 1423 1424 This option enable those enhancements which are not probed at run 1425 time. If you want a generic kernel to run on all Loongson 3 machines, 1426 please say 'N' here. If you want a high-performance kernel to run on 1427 new Loongson-3 machines only, please say 'Y' here. 1428 1429config CPU_LOONGSON3_WORKAROUNDS 1430 bool "Old Loongson-3 LLSC Workarounds" 1431 default y if SMP 1432 depends on CPU_LOONGSON64 1433 help 1434 Loongson-3 processors have the llsc issues which require workarounds. 1435 Without workarounds the system may hang unexpectedly. 1436 1437 Newer Loongson-3 will fix these issues and no workarounds are needed. 1438 The workarounds have no significant side effect on them but may 1439 decrease the performance of the system so this option should be 1440 disabled unless the kernel is intended to be run on old systems. 1441 1442 If unsure, please say Y. 1443 1444config CPU_LOONGSON3_CPUCFG_EMULATION 1445 bool "Emulate the CPUCFG instruction on older Loongson cores" 1446 default y 1447 depends on CPU_LOONGSON64 1448 help 1449 Loongson-3A R4 and newer have the CPUCFG instruction available for 1450 userland to query CPU capabilities, much like CPUID on x86. This 1451 option provides emulation of the instruction on older Loongson 1452 cores, back to Loongson-3A1000. 1453 1454 If unsure, please say Y. 1455 1456config CPU_LOONGSON2E 1457 bool "Loongson 2E" 1458 depends on SYS_HAS_CPU_LOONGSON2E 1459 select CPU_LOONGSON2EF 1460 help 1461 The Loongson 2E processor implements the MIPS III instruction set 1462 with many extensions. 1463 1464 It has an internal FPGA northbridge, which is compatible to 1465 bonito64. 1466 1467config CPU_LOONGSON2F 1468 bool "Loongson 2F" 1469 depends on SYS_HAS_CPU_LOONGSON2F 1470 select CPU_LOONGSON2EF 1471 select GPIOLIB 1472 help 1473 The Loongson 2F processor implements the MIPS III instruction set 1474 with many extensions. 1475 1476 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1477 have a similar programming interface with FPGA northbridge used in 1478 Loongson2E. 1479 1480config CPU_LOONGSON1B 1481 bool "Loongson 1B" 1482 depends on SYS_HAS_CPU_LOONGSON1B 1483 select CPU_LOONGSON32 1484 select LEDS_GPIO_REGISTER 1485 help 1486 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1487 Release 1 instruction set and part of the MIPS32 Release 2 1488 instruction set. 1489 1490config CPU_LOONGSON1C 1491 bool "Loongson 1C" 1492 depends on SYS_HAS_CPU_LOONGSON1C 1493 select CPU_LOONGSON32 1494 select LEDS_GPIO_REGISTER 1495 help 1496 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1497 Release 1 instruction set and part of the MIPS32 Release 2 1498 instruction set. 1499 1500config CPU_MIPS32_R1 1501 bool "MIPS32 Release 1" 1502 depends on SYS_HAS_CPU_MIPS32_R1 1503 select CPU_HAS_PREFETCH 1504 select CPU_SUPPORTS_32BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 help 1507 Choose this option to build a kernel for release 1 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 Release 2 of the MIPS32 architecture is available since several 1513 years so chances are you even have a MIPS32 Release 2 processor 1514 in which case you should choose CPU_MIPS32_R2 instead for better 1515 performance. 1516 1517config CPU_MIPS32_R2 1518 bool "MIPS32 Release 2" 1519 depends on SYS_HAS_CPU_MIPS32_R2 1520 select CPU_HAS_PREFETCH 1521 select CPU_SUPPORTS_32BIT_KERNEL 1522 select CPU_SUPPORTS_HIGHMEM 1523 select CPU_SUPPORTS_MSA 1524 select HAVE_KVM 1525 help 1526 Choose this option to build a kernel for release 2 or later of the 1527 MIPS32 architecture. Most modern embedded systems with a 32-bit 1528 MIPS processor are based on a MIPS32 processor. If you know the 1529 specific type of processor in your system, choose those that one 1530 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1531 1532config CPU_MIPS32_R5 1533 bool "MIPS32 Release 5" 1534 depends on SYS_HAS_CPU_MIPS32_R5 1535 select CPU_HAS_PREFETCH 1536 select CPU_SUPPORTS_32BIT_KERNEL 1537 select CPU_SUPPORTS_HIGHMEM 1538 select CPU_SUPPORTS_MSA 1539 select HAVE_KVM 1540 select MIPS_O32_FP64_SUPPORT 1541 help 1542 Choose this option to build a kernel for release 5 or later of the 1543 MIPS32 architecture. New MIPS processors, starting with the Warrior 1544 family, are based on a MIPS32r5 processor. If you own an older 1545 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1546 1547config CPU_MIPS32_R6 1548 bool "MIPS32 Release 6" 1549 depends on SYS_HAS_CPU_MIPS32_R6 1550 select CPU_HAS_PREFETCH 1551 select CPU_NO_LOAD_STORE_LR 1552 select CPU_SUPPORTS_32BIT_KERNEL 1553 select CPU_SUPPORTS_HIGHMEM 1554 select CPU_SUPPORTS_MSA 1555 select HAVE_KVM 1556 select MIPS_O32_FP64_SUPPORT 1557 help 1558 Choose this option to build a kernel for release 6 or later of the 1559 MIPS32 architecture. New MIPS processors, starting with the Warrior 1560 family, are based on a MIPS32r6 processor. If you own an older 1561 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1562 1563config CPU_MIPS64_R1 1564 bool "MIPS64 Release 1" 1565 depends on SYS_HAS_CPU_MIPS64_R1 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 help 1572 Choose this option to build a kernel for release 1 or later of the 1573 MIPS64 architecture. Many modern embedded systems with a 64-bit 1574 MIPS processor are based on a MIPS64 processor. If you know the 1575 specific type of processor in your system, choose those that one 1576 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1577 Release 2 of the MIPS64 architecture is available since several 1578 years so chances are you even have a MIPS64 Release 2 processor 1579 in which case you should choose CPU_MIPS64_R2 instead for better 1580 performance. 1581 1582config CPU_MIPS64_R2 1583 bool "MIPS64 Release 2" 1584 depends on SYS_HAS_CPU_MIPS64_R2 1585 select CPU_HAS_PREFETCH 1586 select CPU_SUPPORTS_32BIT_KERNEL 1587 select CPU_SUPPORTS_64BIT_KERNEL 1588 select CPU_SUPPORTS_HIGHMEM 1589 select CPU_SUPPORTS_HUGEPAGES 1590 select CPU_SUPPORTS_MSA 1591 select HAVE_KVM 1592 help 1593 Choose this option to build a kernel for release 2 or later of the 1594 MIPS64 architecture. Many modern embedded systems with a 64-bit 1595 MIPS processor are based on a MIPS64 processor. If you know the 1596 specific type of processor in your system, choose those that one 1597 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1598 1599config CPU_MIPS64_R5 1600 bool "MIPS64 Release 5" 1601 depends on SYS_HAS_CPU_MIPS64_R5 1602 select CPU_HAS_PREFETCH 1603 select CPU_SUPPORTS_32BIT_KERNEL 1604 select CPU_SUPPORTS_64BIT_KERNEL 1605 select CPU_SUPPORTS_HIGHMEM 1606 select CPU_SUPPORTS_HUGEPAGES 1607 select CPU_SUPPORTS_MSA 1608 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1609 select HAVE_KVM 1610 help 1611 Choose this option to build a kernel for release 5 or later of the 1612 MIPS64 architecture. This is a intermediate MIPS architecture 1613 release partly implementing release 6 features. Though there is no 1614 any hardware known to be based on this release. 1615 1616config CPU_MIPS64_R6 1617 bool "MIPS64 Release 6" 1618 depends on SYS_HAS_CPU_MIPS64_R6 1619 select CPU_HAS_PREFETCH 1620 select CPU_NO_LOAD_STORE_LR 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_64BIT_KERNEL 1623 select CPU_SUPPORTS_HIGHMEM 1624 select CPU_SUPPORTS_HUGEPAGES 1625 select CPU_SUPPORTS_MSA 1626 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1627 select HAVE_KVM 1628 help 1629 Choose this option to build a kernel for release 6 or later of the 1630 MIPS64 architecture. New MIPS processors, starting with the Warrior 1631 family, are based on a MIPS64r6 processor. If you own an older 1632 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1633 1634config CPU_P5600 1635 bool "MIPS Warrior P5600" 1636 depends on SYS_HAS_CPU_P5600 1637 select CPU_HAS_PREFETCH 1638 select CPU_SUPPORTS_32BIT_KERNEL 1639 select CPU_SUPPORTS_HIGHMEM 1640 select CPU_SUPPORTS_MSA 1641 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1642 select CPU_SUPPORTS_CPUFREQ 1643 select CPU_MIPSR2_IRQ_VI 1644 select CPU_MIPSR2_IRQ_EI 1645 select HAVE_KVM 1646 select MIPS_O32_FP64_SUPPORT 1647 help 1648 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1649 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1650 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1651 level features like up to six P5600 calculation cores, CM2 with L2 1652 cache, IOCU/IOMMU (though might be unused depending on the system- 1653 specific IP core configuration), GIC, CPC, virtualisation module, 1654 eJTAG and PDtrace. 1655 1656config CPU_R3000 1657 bool "R3000" 1658 depends on SYS_HAS_CPU_R3000 1659 select CPU_HAS_WB 1660 select CPU_R3K_TLB 1661 select CPU_SUPPORTS_32BIT_KERNEL 1662 select CPU_SUPPORTS_HIGHMEM 1663 help 1664 Please make sure to pick the right CPU type. Linux/MIPS is not 1665 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1666 *not* work on R4000 machines and vice versa. However, since most 1667 of the supported machines have an R4000 (or similar) CPU, R4x00 1668 might be a safe bet. If the resulting kernel does not work, 1669 try to recompile with R3000. 1670 1671config CPU_TX39XX 1672 bool "R39XX" 1673 depends on SYS_HAS_CPU_TX39XX 1674 select CPU_SUPPORTS_32BIT_KERNEL 1675 select CPU_R3K_TLB 1676 1677config CPU_VR41XX 1678 bool "R41xx" 1679 depends on SYS_HAS_CPU_VR41XX 1680 select CPU_SUPPORTS_32BIT_KERNEL 1681 select CPU_SUPPORTS_64BIT_KERNEL 1682 help 1683 The options selects support for the NEC VR4100 series of processors. 1684 Only choose this option if you have one of these processors as a 1685 kernel built with this option will not run on any other type of 1686 processor or vice versa. 1687 1688config CPU_R4X00 1689 bool "R4x00" 1690 depends on SYS_HAS_CPU_R4X00 1691 select CPU_SUPPORTS_32BIT_KERNEL 1692 select CPU_SUPPORTS_64BIT_KERNEL 1693 select CPU_SUPPORTS_HUGEPAGES 1694 help 1695 MIPS Technologies R4000-series processors other than 4300, including 1696 the R4000, R4400, R4600, and 4700. 1697 1698config CPU_TX49XX 1699 bool "R49XX" 1700 depends on SYS_HAS_CPU_TX49XX 1701 select CPU_HAS_PREFETCH 1702 select CPU_SUPPORTS_32BIT_KERNEL 1703 select CPU_SUPPORTS_64BIT_KERNEL 1704 select CPU_SUPPORTS_HUGEPAGES 1705 1706config CPU_R5000 1707 bool "R5000" 1708 depends on SYS_HAS_CPU_R5000 1709 select CPU_SUPPORTS_32BIT_KERNEL 1710 select CPU_SUPPORTS_64BIT_KERNEL 1711 select CPU_SUPPORTS_HUGEPAGES 1712 help 1713 MIPS Technologies R5000-series processors other than the Nevada. 1714 1715config CPU_R5500 1716 bool "R5500" 1717 depends on SYS_HAS_CPU_R5500 1718 select CPU_SUPPORTS_32BIT_KERNEL 1719 select CPU_SUPPORTS_64BIT_KERNEL 1720 select CPU_SUPPORTS_HUGEPAGES 1721 help 1722 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1723 instruction set. 1724 1725config CPU_NEVADA 1726 bool "RM52xx" 1727 depends on SYS_HAS_CPU_NEVADA 1728 select CPU_SUPPORTS_32BIT_KERNEL 1729 select CPU_SUPPORTS_64BIT_KERNEL 1730 select CPU_SUPPORTS_HUGEPAGES 1731 help 1732 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1733 1734config CPU_R10000 1735 bool "R10000" 1736 depends on SYS_HAS_CPU_R10000 1737 select CPU_HAS_PREFETCH 1738 select CPU_SUPPORTS_32BIT_KERNEL 1739 select CPU_SUPPORTS_64BIT_KERNEL 1740 select CPU_SUPPORTS_HIGHMEM 1741 select CPU_SUPPORTS_HUGEPAGES 1742 help 1743 MIPS Technologies R10000-series processors. 1744 1745config CPU_RM7000 1746 bool "RM7000" 1747 depends on SYS_HAS_CPU_RM7000 1748 select CPU_HAS_PREFETCH 1749 select CPU_SUPPORTS_32BIT_KERNEL 1750 select CPU_SUPPORTS_64BIT_KERNEL 1751 select CPU_SUPPORTS_HIGHMEM 1752 select CPU_SUPPORTS_HUGEPAGES 1753 1754config CPU_SB1 1755 bool "SB1" 1756 depends on SYS_HAS_CPU_SB1 1757 select CPU_SUPPORTS_32BIT_KERNEL 1758 select CPU_SUPPORTS_64BIT_KERNEL 1759 select CPU_SUPPORTS_HIGHMEM 1760 select CPU_SUPPORTS_HUGEPAGES 1761 select WEAK_ORDERING 1762 1763config CPU_CAVIUM_OCTEON 1764 bool "Cavium Octeon processor" 1765 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1766 select CPU_HAS_PREFETCH 1767 select CPU_SUPPORTS_64BIT_KERNEL 1768 select WEAK_ORDERING 1769 select CPU_SUPPORTS_HIGHMEM 1770 select CPU_SUPPORTS_HUGEPAGES 1771 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1772 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1773 select MIPS_L1_CACHE_SHIFT_7 1774 select HAVE_KVM 1775 help 1776 The Cavium Octeon processor is a highly integrated chip containing 1777 many ethernet hardware widgets for networking tasks. The processor 1778 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1779 Full details can be found at http://www.caviumnetworks.com. 1780 1781config CPU_BMIPS 1782 bool "Broadcom BMIPS" 1783 depends on SYS_HAS_CPU_BMIPS 1784 select CPU_MIPS32 1785 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1786 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1787 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1788 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1789 select CPU_SUPPORTS_32BIT_KERNEL 1790 select DMA_NONCOHERENT 1791 select IRQ_MIPS_CPU 1792 select SWAP_IO_SPACE 1793 select WEAK_ORDERING 1794 select CPU_SUPPORTS_HIGHMEM 1795 select CPU_HAS_PREFETCH 1796 select CPU_SUPPORTS_CPUFREQ 1797 select MIPS_EXTERNAL_TIMER 1798 help 1799 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1800 1801config CPU_XLR 1802 bool "Netlogic XLR SoC" 1803 depends on SYS_HAS_CPU_XLR 1804 select CPU_SUPPORTS_32BIT_KERNEL 1805 select CPU_SUPPORTS_64BIT_KERNEL 1806 select CPU_SUPPORTS_HIGHMEM 1807 select CPU_SUPPORTS_HUGEPAGES 1808 select WEAK_ORDERING 1809 select WEAK_REORDERING_BEYOND_LLSC 1810 help 1811 Netlogic Microsystems XLR/XLS processors. 1812 1813config CPU_XLP 1814 bool "Netlogic XLP SoC" 1815 depends on SYS_HAS_CPU_XLP 1816 select CPU_SUPPORTS_32BIT_KERNEL 1817 select CPU_SUPPORTS_64BIT_KERNEL 1818 select CPU_SUPPORTS_HIGHMEM 1819 select WEAK_ORDERING 1820 select WEAK_REORDERING_BEYOND_LLSC 1821 select CPU_HAS_PREFETCH 1822 select CPU_MIPSR2 1823 select CPU_SUPPORTS_HUGEPAGES 1824 select MIPS_ASID_BITS_VARIABLE 1825 help 1826 Netlogic Microsystems XLP processors. 1827endchoice 1828 1829config CPU_MIPS32_3_5_FEATURES 1830 bool "MIPS32 Release 3.5 Features" 1831 depends on SYS_HAS_CPU_MIPS32_R3_5 1832 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1833 CPU_P5600 1834 help 1835 Choose this option to build a kernel for release 2 or later of the 1836 MIPS32 architecture including features from the 3.5 release such as 1837 support for Enhanced Virtual Addressing (EVA). 1838 1839config CPU_MIPS32_3_5_EVA 1840 bool "Enhanced Virtual Addressing (EVA)" 1841 depends on CPU_MIPS32_3_5_FEATURES 1842 select EVA 1843 default y 1844 help 1845 Choose this option if you want to enable the Enhanced Virtual 1846 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1847 One of its primary benefits is an increase in the maximum size 1848 of lowmem (up to 3GB). If unsure, say 'N' here. 1849 1850config CPU_MIPS32_R5_FEATURES 1851 bool "MIPS32 Release 5 Features" 1852 depends on SYS_HAS_CPU_MIPS32_R5 1853 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1854 help 1855 Choose this option to build a kernel for release 2 or later of the 1856 MIPS32 architecture including features from release 5 such as 1857 support for Extended Physical Addressing (XPA). 1858 1859config CPU_MIPS32_R5_XPA 1860 bool "Extended Physical Addressing (XPA)" 1861 depends on CPU_MIPS32_R5_FEATURES 1862 depends on !EVA 1863 depends on !PAGE_SIZE_4KB 1864 depends on SYS_SUPPORTS_HIGHMEM 1865 select XPA 1866 select HIGHMEM 1867 select PHYS_ADDR_T_64BIT 1868 default n 1869 help 1870 Choose this option if you want to enable the Extended Physical 1871 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1872 benefit is to increase physical addressing equal to or greater 1873 than 40 bits. Note that this has the side effect of turning on 1874 64-bit addressing which in turn makes the PTEs 64-bit in size. 1875 If unsure, say 'N' here. 1876 1877if CPU_LOONGSON2F 1878config CPU_NOP_WORKAROUNDS 1879 bool 1880 1881config CPU_JUMP_WORKAROUNDS 1882 bool 1883 1884config CPU_LOONGSON2F_WORKAROUNDS 1885 bool "Loongson 2F Workarounds" 1886 default y 1887 select CPU_NOP_WORKAROUNDS 1888 select CPU_JUMP_WORKAROUNDS 1889 help 1890 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1891 require workarounds. Without workarounds the system may hang 1892 unexpectedly. For more information please refer to the gas 1893 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1894 1895 Loongson 2F03 and later have fixed these issues and no workarounds 1896 are needed. The workarounds have no significant side effect on them 1897 but may decrease the performance of the system so this option should 1898 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1899 systems. 1900 1901 If unsure, please say Y. 1902endif # CPU_LOONGSON2F 1903 1904config SYS_SUPPORTS_ZBOOT 1905 bool 1906 select HAVE_KERNEL_GZIP 1907 select HAVE_KERNEL_BZIP2 1908 select HAVE_KERNEL_LZ4 1909 select HAVE_KERNEL_LZMA 1910 select HAVE_KERNEL_LZO 1911 select HAVE_KERNEL_XZ 1912 1913config SYS_SUPPORTS_ZBOOT_UART16550 1914 bool 1915 select SYS_SUPPORTS_ZBOOT 1916 1917config SYS_SUPPORTS_ZBOOT_UART_PROM 1918 bool 1919 select SYS_SUPPORTS_ZBOOT 1920 1921config CPU_LOONGSON2EF 1922 bool 1923 select CPU_SUPPORTS_32BIT_KERNEL 1924 select CPU_SUPPORTS_64BIT_KERNEL 1925 select CPU_SUPPORTS_HIGHMEM 1926 select CPU_SUPPORTS_HUGEPAGES 1927 select ARCH_HAS_PHYS_TO_DMA 1928 1929config CPU_LOONGSON32 1930 bool 1931 select CPU_MIPS32 1932 select CPU_MIPSR2 1933 select CPU_HAS_PREFETCH 1934 select CPU_SUPPORTS_32BIT_KERNEL 1935 select CPU_SUPPORTS_HIGHMEM 1936 select CPU_SUPPORTS_CPUFREQ 1937 1938config CPU_BMIPS32_3300 1939 select SMP_UP if SMP 1940 bool 1941 1942config CPU_BMIPS4350 1943 bool 1944 select SYS_SUPPORTS_SMP 1945 select SYS_SUPPORTS_HOTPLUG_CPU 1946 1947config CPU_BMIPS4380 1948 bool 1949 select MIPS_L1_CACHE_SHIFT_6 1950 select SYS_SUPPORTS_SMP 1951 select SYS_SUPPORTS_HOTPLUG_CPU 1952 select CPU_HAS_RIXI 1953 1954config CPU_BMIPS5000 1955 bool 1956 select MIPS_CPU_SCACHE 1957 select MIPS_L1_CACHE_SHIFT_7 1958 select SYS_SUPPORTS_SMP 1959 select SYS_SUPPORTS_HOTPLUG_CPU 1960 select CPU_HAS_RIXI 1961 1962config SYS_HAS_CPU_LOONGSON64 1963 bool 1964 select CPU_SUPPORTS_CPUFREQ 1965 select CPU_HAS_RIXI 1966 1967config SYS_HAS_CPU_LOONGSON2E 1968 bool 1969 1970config SYS_HAS_CPU_LOONGSON2F 1971 bool 1972 select CPU_SUPPORTS_CPUFREQ 1973 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1974 1975config SYS_HAS_CPU_LOONGSON1B 1976 bool 1977 1978config SYS_HAS_CPU_LOONGSON1C 1979 bool 1980 1981config SYS_HAS_CPU_MIPS32_R1 1982 bool 1983 1984config SYS_HAS_CPU_MIPS32_R2 1985 bool 1986 1987config SYS_HAS_CPU_MIPS32_R3_5 1988 bool 1989 1990config SYS_HAS_CPU_MIPS32_R5 1991 bool 1992 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1993 1994config SYS_HAS_CPU_MIPS32_R6 1995 bool 1996 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1997 1998config SYS_HAS_CPU_MIPS64_R1 1999 bool 2000 2001config SYS_HAS_CPU_MIPS64_R2 2002 bool 2003 2004config SYS_HAS_CPU_MIPS64_R6 2005 bool 2006 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2007 2008config SYS_HAS_CPU_P5600 2009 bool 2010 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2011 2012config SYS_HAS_CPU_R3000 2013 bool 2014 2015config SYS_HAS_CPU_TX39XX 2016 bool 2017 2018config SYS_HAS_CPU_VR41XX 2019 bool 2020 2021config SYS_HAS_CPU_R4X00 2022 bool 2023 2024config SYS_HAS_CPU_TX49XX 2025 bool 2026 2027config SYS_HAS_CPU_R5000 2028 bool 2029 2030config SYS_HAS_CPU_R5500 2031 bool 2032 2033config SYS_HAS_CPU_NEVADA 2034 bool 2035 2036config SYS_HAS_CPU_R10000 2037 bool 2038 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2039 2040config SYS_HAS_CPU_RM7000 2041 bool 2042 2043config SYS_HAS_CPU_SB1 2044 bool 2045 2046config SYS_HAS_CPU_CAVIUM_OCTEON 2047 bool 2048 2049config SYS_HAS_CPU_BMIPS 2050 bool 2051 2052config SYS_HAS_CPU_BMIPS32_3300 2053 bool 2054 select SYS_HAS_CPU_BMIPS 2055 2056config SYS_HAS_CPU_BMIPS4350 2057 bool 2058 select SYS_HAS_CPU_BMIPS 2059 2060config SYS_HAS_CPU_BMIPS4380 2061 bool 2062 select SYS_HAS_CPU_BMIPS 2063 2064config SYS_HAS_CPU_BMIPS5000 2065 bool 2066 select SYS_HAS_CPU_BMIPS 2067 select ARCH_HAS_SYNC_DMA_FOR_CPU 2068 2069config SYS_HAS_CPU_XLR 2070 bool 2071 2072config SYS_HAS_CPU_XLP 2073 bool 2074 2075# 2076# CPU may reorder R->R, R->W, W->R, W->W 2077# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2078# 2079config WEAK_ORDERING 2080 bool 2081 2082# 2083# CPU may reorder reads and writes beyond LL/SC 2084# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2085# 2086config WEAK_REORDERING_BEYOND_LLSC 2087 bool 2088endmenu 2089 2090# 2091# These two indicate any level of the MIPS32 and MIPS64 architecture 2092# 2093config CPU_MIPS32 2094 bool 2095 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2096 CPU_MIPS32_R6 || CPU_P5600 2097 2098config CPU_MIPS64 2099 bool 2100 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2101 CPU_MIPS64_R6 2102 2103# 2104# These indicate the revision of the architecture 2105# 2106config CPU_MIPSR1 2107 bool 2108 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2109 2110config CPU_MIPSR2 2111 bool 2112 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2113 select CPU_HAS_RIXI 2114 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2115 select MIPS_SPRAM 2116 2117config CPU_MIPSR5 2118 bool 2119 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2120 select CPU_HAS_RIXI 2121 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2122 select MIPS_SPRAM 2123 2124config CPU_MIPSR6 2125 bool 2126 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2127 select CPU_HAS_RIXI 2128 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2129 select HAVE_ARCH_BITREVERSE 2130 select MIPS_ASID_BITS_VARIABLE 2131 select MIPS_CRC_SUPPORT 2132 select MIPS_SPRAM 2133 2134config TARGET_ISA_REV 2135 int 2136 default 1 if CPU_MIPSR1 2137 default 2 if CPU_MIPSR2 2138 default 5 if CPU_MIPSR5 2139 default 6 if CPU_MIPSR6 2140 default 0 2141 help 2142 Reflects the ISA revision being targeted by the kernel build. This 2143 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2144 2145config EVA 2146 bool 2147 2148config XPA 2149 bool 2150 2151config SYS_SUPPORTS_32BIT_KERNEL 2152 bool 2153config SYS_SUPPORTS_64BIT_KERNEL 2154 bool 2155config CPU_SUPPORTS_32BIT_KERNEL 2156 bool 2157config CPU_SUPPORTS_64BIT_KERNEL 2158 bool 2159config CPU_SUPPORTS_CPUFREQ 2160 bool 2161config CPU_SUPPORTS_ADDRWINCFG 2162 bool 2163config CPU_SUPPORTS_HUGEPAGES 2164 bool 2165 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2166config MIPS_PGD_C0_CONTEXT 2167 bool 2168 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2169 2170# 2171# Set to y for ptrace access to watch registers. 2172# 2173config HARDWARE_WATCHPOINTS 2174 bool 2175 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2176 2177menu "Kernel type" 2178 2179choice 2180 prompt "Kernel code model" 2181 help 2182 You should only select this option if you have a workload that 2183 actually benefits from 64-bit processing or if your machine has 2184 large memory. You will only be presented a single option in this 2185 menu if your system does not support both 32-bit and 64-bit kernels. 2186 2187config 32BIT 2188 bool "32-bit kernel" 2189 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2190 select TRAD_SIGNALS 2191 help 2192 Select this option if you want to build a 32-bit kernel. 2193 2194config 64BIT 2195 bool "64-bit kernel" 2196 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2197 help 2198 Select this option if you want to build a 64-bit kernel. 2199 2200endchoice 2201 2202config KVM_GUEST 2203 bool "KVM Guest Kernel" 2204 depends on BROKEN_ON_SMP 2205 help 2206 Select this option if building a guest kernel for KVM (Trap & Emulate) 2207 mode. 2208 2209config KVM_GUEST_TIMER_FREQ 2210 int "Count/Compare Timer Frequency (MHz)" 2211 depends on KVM_GUEST 2212 default 100 2213 help 2214 Set this to non-zero if building a guest kernel for KVM to skip RTC 2215 emulation when determining guest CPU Frequency. Instead, the guest's 2216 timer frequency is specified directly. 2217 2218config MIPS_VA_BITS_48 2219 bool "48 bits virtual memory" 2220 depends on 64BIT 2221 help 2222 Support a maximum at least 48 bits of application virtual 2223 memory. Default is 40 bits or less, depending on the CPU. 2224 For page sizes 16k and above, this option results in a small 2225 memory overhead for page tables. For 4k page size, a fourth 2226 level of page tables is added which imposes both a memory 2227 overhead as well as slower TLB fault handling. 2228 2229 If unsure, say N. 2230 2231choice 2232 prompt "Kernel page size" 2233 default PAGE_SIZE_4KB 2234 2235config PAGE_SIZE_4KB 2236 bool "4kB" 2237 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2238 help 2239 This option select the standard 4kB Linux page size. On some 2240 R3000-family processors this is the only available page size. Using 2241 4kB page size will minimize memory consumption and is therefore 2242 recommended for low memory systems. 2243 2244config PAGE_SIZE_8KB 2245 bool "8kB" 2246 depends on CPU_CAVIUM_OCTEON 2247 depends on !MIPS_VA_BITS_48 2248 help 2249 Using 8kB page size will result in higher performance kernel at 2250 the price of higher memory consumption. This option is available 2251 only on cnMIPS processors. Note that you will need a suitable Linux 2252 distribution to support this. 2253 2254config PAGE_SIZE_16KB 2255 bool "16kB" 2256 depends on !CPU_R3000 && !CPU_TX39XX 2257 help 2258 Using 16kB page size will result in higher performance kernel at 2259 the price of higher memory consumption. This option is available on 2260 all non-R3000 family processors. Note that you will need a suitable 2261 Linux distribution to support this. 2262 2263config PAGE_SIZE_32KB 2264 bool "32kB" 2265 depends on CPU_CAVIUM_OCTEON 2266 depends on !MIPS_VA_BITS_48 2267 help 2268 Using 32kB page size will result in higher performance kernel at 2269 the price of higher memory consumption. This option is available 2270 only on cnMIPS cores. Note that you will need a suitable Linux 2271 distribution to support this. 2272 2273config PAGE_SIZE_64KB 2274 bool "64kB" 2275 depends on !CPU_R3000 && !CPU_TX39XX 2276 help 2277 Using 64kB page size will result in higher performance kernel at 2278 the price of higher memory consumption. This option is available on 2279 all non-R3000 family processor. Not that at the time of this 2280 writing this option is still high experimental. 2281 2282endchoice 2283 2284config FORCE_MAX_ZONEORDER 2285 int "Maximum zone order" 2286 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2287 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2288 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2289 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2290 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2291 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2292 range 11 64 2293 default "11" 2294 help 2295 The kernel memory allocator divides physically contiguous memory 2296 blocks into "zones", where each zone is a power of two number of 2297 pages. This option selects the largest power of two that the kernel 2298 keeps in the memory allocator. If you need to allocate very large 2299 blocks of physically contiguous memory, then you may need to 2300 increase this value. 2301 2302 This config option is actually maximum order plus one. For example, 2303 a value of 11 means that the largest free memory block is 2^10 pages. 2304 2305 The page size is not necessarily 4KB. Keep this in mind 2306 when choosing a value for this option. 2307 2308config BOARD_SCACHE 2309 bool 2310 2311config IP22_CPU_SCACHE 2312 bool 2313 select BOARD_SCACHE 2314 2315# 2316# Support for a MIPS32 / MIPS64 style S-caches 2317# 2318config MIPS_CPU_SCACHE 2319 bool 2320 select BOARD_SCACHE 2321 2322config R5000_CPU_SCACHE 2323 bool 2324 select BOARD_SCACHE 2325 2326config RM7000_CPU_SCACHE 2327 bool 2328 select BOARD_SCACHE 2329 2330config SIBYTE_DMA_PAGEOPS 2331 bool "Use DMA to clear/copy pages" 2332 depends on CPU_SB1 2333 help 2334 Instead of using the CPU to zero and copy pages, use a Data Mover 2335 channel. These DMA channels are otherwise unused by the standard 2336 SiByte Linux port. Seems to give a small performance benefit. 2337 2338config CPU_HAS_PREFETCH 2339 bool 2340 2341config CPU_GENERIC_DUMP_TLB 2342 bool 2343 default y if !(CPU_R3000 || CPU_TX39XX) 2344 2345config MIPS_FP_SUPPORT 2346 bool "Floating Point support" if EXPERT 2347 default y 2348 help 2349 Select y to include support for floating point in the kernel 2350 including initialization of FPU hardware, FP context save & restore 2351 and emulation of an FPU where necessary. Without this support any 2352 userland program attempting to use floating point instructions will 2353 receive a SIGILL. 2354 2355 If you know that your userland will not attempt to use floating point 2356 instructions then you can say n here to shrink the kernel a little. 2357 2358 If unsure, say y. 2359 2360config CPU_R2300_FPU 2361 bool 2362 depends on MIPS_FP_SUPPORT 2363 default y if CPU_R3000 || CPU_TX39XX 2364 2365config CPU_R3K_TLB 2366 bool 2367 2368config CPU_R4K_FPU 2369 bool 2370 depends on MIPS_FP_SUPPORT 2371 default y if !CPU_R2300_FPU 2372 2373config CPU_R4K_CACHE_TLB 2374 bool 2375 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2376 2377config MIPS_MT_SMP 2378 bool "MIPS MT SMP support (1 TC on each available VPE)" 2379 default y 2380 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2381 select CPU_MIPSR2_IRQ_VI 2382 select CPU_MIPSR2_IRQ_EI 2383 select SYNC_R4K 2384 select MIPS_MT 2385 select SMP 2386 select SMP_UP 2387 select SYS_SUPPORTS_SMP 2388 select SYS_SUPPORTS_SCHED_SMT 2389 select MIPS_PERF_SHARED_TC_COUNTERS 2390 help 2391 This is a kernel model which is known as SMVP. This is supported 2392 on cores with the MT ASE and uses the available VPEs to implement 2393 virtual processors which supports SMP. This is equivalent to the 2394 Intel Hyperthreading feature. For further information go to 2395 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2396 2397config MIPS_MT 2398 bool 2399 2400config SCHED_SMT 2401 bool "SMT (multithreading) scheduler support" 2402 depends on SYS_SUPPORTS_SCHED_SMT 2403 default n 2404 help 2405 SMT scheduler support improves the CPU scheduler's decision making 2406 when dealing with MIPS MT enabled cores at a cost of slightly 2407 increased overhead in some places. If unsure say N here. 2408 2409config SYS_SUPPORTS_SCHED_SMT 2410 bool 2411 2412config SYS_SUPPORTS_MULTITHREADING 2413 bool 2414 2415config MIPS_MT_FPAFF 2416 bool "Dynamic FPU affinity for FP-intensive threads" 2417 default y 2418 depends on MIPS_MT_SMP 2419 2420config MIPSR2_TO_R6_EMULATOR 2421 bool "MIPS R2-to-R6 emulator" 2422 depends on CPU_MIPSR6 2423 depends on MIPS_FP_SUPPORT 2424 default y 2425 help 2426 Choose this option if you want to run non-R6 MIPS userland code. 2427 Even if you say 'Y' here, the emulator will still be disabled by 2428 default. You can enable it using the 'mipsr2emu' kernel option. 2429 The only reason this is a build-time option is to save ~14K from the 2430 final kernel image. 2431 2432config SYS_SUPPORTS_VPE_LOADER 2433 bool 2434 depends on SYS_SUPPORTS_MULTITHREADING 2435 help 2436 Indicates that the platform supports the VPE loader, and provides 2437 physical_memsize. 2438 2439config MIPS_VPE_LOADER 2440 bool "VPE loader support." 2441 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2442 select CPU_MIPSR2_IRQ_VI 2443 select CPU_MIPSR2_IRQ_EI 2444 select MIPS_MT 2445 help 2446 Includes a loader for loading an elf relocatable object 2447 onto another VPE and running it. 2448 2449config MIPS_VPE_LOADER_CMP 2450 bool 2451 default "y" 2452 depends on MIPS_VPE_LOADER && MIPS_CMP 2453 2454config MIPS_VPE_LOADER_MT 2455 bool 2456 default "y" 2457 depends on MIPS_VPE_LOADER && !MIPS_CMP 2458 2459config MIPS_VPE_LOADER_TOM 2460 bool "Load VPE program into memory hidden from linux" 2461 depends on MIPS_VPE_LOADER 2462 default y 2463 help 2464 The loader can use memory that is present but has been hidden from 2465 Linux using the kernel command line option "mem=xxMB". It's up to 2466 you to ensure the amount you put in the option and the space your 2467 program requires is less or equal to the amount physically present. 2468 2469config MIPS_VPE_APSP_API 2470 bool "Enable support for AP/SP API (RTLX)" 2471 depends on MIPS_VPE_LOADER 2472 2473config MIPS_VPE_APSP_API_CMP 2474 bool 2475 default "y" 2476 depends on MIPS_VPE_APSP_API && MIPS_CMP 2477 2478config MIPS_VPE_APSP_API_MT 2479 bool 2480 default "y" 2481 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2482 2483config MIPS_CMP 2484 bool "MIPS CMP framework support (DEPRECATED)" 2485 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2486 select SMP 2487 select SYNC_R4K 2488 select SYS_SUPPORTS_SMP 2489 select WEAK_ORDERING 2490 default n 2491 help 2492 Select this if you are using a bootloader which implements the "CMP 2493 framework" protocol (ie. YAMON) and want your kernel to make use of 2494 its ability to start secondary CPUs. 2495 2496 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2497 instead of this. 2498 2499config MIPS_CPS 2500 bool "MIPS Coherent Processing System support" 2501 depends on SYS_SUPPORTS_MIPS_CPS 2502 select MIPS_CM 2503 select MIPS_CPS_PM if HOTPLUG_CPU 2504 select SMP 2505 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2506 select SYS_SUPPORTS_HOTPLUG_CPU 2507 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2508 select SYS_SUPPORTS_SMP 2509 select WEAK_ORDERING 2510 help 2511 Select this if you wish to run an SMP kernel across multiple cores 2512 within a MIPS Coherent Processing System. When this option is 2513 enabled the kernel will probe for other cores and boot them with 2514 no external assistance. It is safe to enable this when hardware 2515 support is unavailable. 2516 2517config MIPS_CPS_PM 2518 depends on MIPS_CPS 2519 bool 2520 2521config MIPS_CM 2522 bool 2523 select MIPS_CPC 2524 2525config MIPS_CPC 2526 bool 2527 2528config SB1_PASS_2_WORKAROUNDS 2529 bool 2530 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2531 default y 2532 2533config SB1_PASS_2_1_WORKAROUNDS 2534 bool 2535 depends on CPU_SB1 && CPU_SB1_PASS_2 2536 default y 2537 2538choice 2539 prompt "SmartMIPS or microMIPS ASE support" 2540 2541config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2542 bool "None" 2543 help 2544 Select this if you want neither microMIPS nor SmartMIPS support 2545 2546config CPU_HAS_SMARTMIPS 2547 depends on SYS_SUPPORTS_SMARTMIPS 2548 bool "SmartMIPS" 2549 help 2550 SmartMIPS is a extension of the MIPS32 architecture aimed at 2551 increased security at both hardware and software level for 2552 smartcards. Enabling this option will allow proper use of the 2553 SmartMIPS instructions by Linux applications. However a kernel with 2554 this option will not work on a MIPS core without SmartMIPS core. If 2555 you don't know you probably don't have SmartMIPS and should say N 2556 here. 2557 2558config CPU_MICROMIPS 2559 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2560 bool "microMIPS" 2561 help 2562 When this option is enabled the kernel will be built using the 2563 microMIPS ISA 2564 2565endchoice 2566 2567config CPU_HAS_MSA 2568 bool "Support for the MIPS SIMD Architecture" 2569 depends on CPU_SUPPORTS_MSA 2570 depends on MIPS_FP_SUPPORT 2571 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2572 help 2573 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2574 and a set of SIMD instructions to operate on them. When this option 2575 is enabled the kernel will support allocating & switching MSA 2576 vector register contexts. If you know that your kernel will only be 2577 running on CPUs which do not support MSA or that your userland will 2578 not be making use of it then you may wish to say N here to reduce 2579 the size & complexity of your kernel. 2580 2581 If unsure, say Y. 2582 2583config CPU_HAS_WB 2584 bool 2585 2586config XKS01 2587 bool 2588 2589config CPU_HAS_DIEI 2590 depends on !CPU_DIEI_BROKEN 2591 bool 2592 2593config CPU_DIEI_BROKEN 2594 bool 2595 2596config CPU_HAS_RIXI 2597 bool 2598 2599config CPU_NO_LOAD_STORE_LR 2600 bool 2601 help 2602 CPU lacks support for unaligned load and store instructions: 2603 LWL, LWR, SWL, SWR (Load/store word left/right). 2604 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2605 systems). 2606 2607# 2608# Vectored interrupt mode is an R2 feature 2609# 2610config CPU_MIPSR2_IRQ_VI 2611 bool 2612 2613# 2614# Extended interrupt mode is an R2 feature 2615# 2616config CPU_MIPSR2_IRQ_EI 2617 bool 2618 2619config CPU_HAS_SYNC 2620 bool 2621 depends on !CPU_R3000 2622 default y 2623 2624# 2625# CPU non-features 2626# 2627config CPU_DADDI_WORKAROUNDS 2628 bool 2629 2630config CPU_R4000_WORKAROUNDS 2631 bool 2632 select CPU_R4400_WORKAROUNDS 2633 2634config CPU_R4400_WORKAROUNDS 2635 bool 2636 2637config CPU_R4X00_BUGS64 2638 bool 2639 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2640 2641config MIPS_ASID_SHIFT 2642 int 2643 default 6 if CPU_R3000 || CPU_TX39XX 2644 default 0 2645 2646config MIPS_ASID_BITS 2647 int 2648 default 0 if MIPS_ASID_BITS_VARIABLE 2649 default 6 if CPU_R3000 || CPU_TX39XX 2650 default 8 2651 2652config MIPS_ASID_BITS_VARIABLE 2653 bool 2654 2655config MIPS_CRC_SUPPORT 2656 bool 2657 2658# 2659# - Highmem only makes sense for the 32-bit kernel. 2660# - The current highmem code will only work properly on physically indexed 2661# caches such as R3000, SB1, R7000 or those that look like they're virtually 2662# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2663# moment we protect the user and offer the highmem option only on machines 2664# where it's known to be safe. This will not offer highmem on a few systems 2665# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2666# indexed CPUs but we're playing safe. 2667# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2668# know they might have memory configurations that could make use of highmem 2669# support. 2670# 2671config HIGHMEM 2672 bool "High Memory Support" 2673 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2674 2675config CPU_SUPPORTS_HIGHMEM 2676 bool 2677 2678config SYS_SUPPORTS_HIGHMEM 2679 bool 2680 2681config SYS_SUPPORTS_SMARTMIPS 2682 bool 2683 2684config SYS_SUPPORTS_MICROMIPS 2685 bool 2686 2687config SYS_SUPPORTS_MIPS16 2688 bool 2689 help 2690 This option must be set if a kernel might be executed on a MIPS16- 2691 enabled CPU even if MIPS16 is not actually being used. In other 2692 words, it makes the kernel MIPS16-tolerant. 2693 2694config CPU_SUPPORTS_MSA 2695 bool 2696 2697config ARCH_FLATMEM_ENABLE 2698 def_bool y 2699 depends on !NUMA && !CPU_LOONGSON2EF 2700 2701config ARCH_SPARSEMEM_ENABLE 2702 bool 2703 select SPARSEMEM_STATIC if !SGI_IP27 2704 2705config NUMA 2706 bool "NUMA Support" 2707 depends on SYS_SUPPORTS_NUMA 2708 help 2709 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2710 Access). This option improves performance on systems with more 2711 than two nodes; on two node systems it is generally better to 2712 leave it disabled; on single node systems leave this option 2713 disabled. 2714 2715config SYS_SUPPORTS_NUMA 2716 bool 2717 2718config HAVE_SETUP_PER_CPU_AREA 2719 def_bool y 2720 depends on NUMA 2721 2722config NEED_PER_CPU_EMBED_FIRST_CHUNK 2723 def_bool y 2724 depends on NUMA 2725 2726config RELOCATABLE 2727 bool "Relocatable kernel" 2728 depends on SYS_SUPPORTS_RELOCATABLE 2729 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2730 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2731 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2732 CPU_P5600 || CAVIUM_OCTEON_SOC 2733 help 2734 This builds a kernel image that retains relocation information 2735 so it can be loaded someplace besides the default 1MB. 2736 The relocations make the kernel binary about 15% larger, 2737 but are discarded at runtime 2738 2739config RELOCATION_TABLE_SIZE 2740 hex "Relocation table size" 2741 depends on RELOCATABLE 2742 range 0x0 0x01000000 2743 default "0x00100000" 2744 ---help--- 2745 A table of relocation data will be appended to the kernel binary 2746 and parsed at boot to fix up the relocated kernel. 2747 2748 This option allows the amount of space reserved for the table to be 2749 adjusted, although the default of 1Mb should be ok in most cases. 2750 2751 The build will fail and a valid size suggested if this is too small. 2752 2753 If unsure, leave at the default value. 2754 2755config RANDOMIZE_BASE 2756 bool "Randomize the address of the kernel image" 2757 depends on RELOCATABLE 2758 ---help--- 2759 Randomizes the physical and virtual address at which the 2760 kernel image is loaded, as a security feature that 2761 deters exploit attempts relying on knowledge of the location 2762 of kernel internals. 2763 2764 Entropy is generated using any coprocessor 0 registers available. 2765 2766 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2767 2768 If unsure, say N. 2769 2770config RANDOMIZE_BASE_MAX_OFFSET 2771 hex "Maximum kASLR offset" if EXPERT 2772 depends on RANDOMIZE_BASE 2773 range 0x0 0x40000000 if EVA || 64BIT 2774 range 0x0 0x08000000 2775 default "0x01000000" 2776 ---help--- 2777 When kASLR is active, this provides the maximum offset that will 2778 be applied to the kernel image. It should be set according to the 2779 amount of physical RAM available in the target system minus 2780 PHYSICAL_START and must be a power of 2. 2781 2782 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2783 EVA or 64-bit. The default is 16Mb. 2784 2785config NODES_SHIFT 2786 int 2787 default "6" 2788 depends on NEED_MULTIPLE_NODES 2789 2790config HW_PERF_EVENTS 2791 bool "Enable hardware performance counter support for perf events" 2792 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2793 default y 2794 help 2795 Enable hardware performance counter support for perf events. If 2796 disabled, perf events will use software events only. 2797 2798config DMI 2799 bool "Enable DMI scanning" 2800 depends on MACH_LOONGSON64 2801 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2802 default y 2803 help 2804 Enabled scanning of DMI to identify machine quirks. Say Y 2805 here unless you have verified that your setup is not 2806 affected by entries in the DMI blacklist. Required by PNP 2807 BIOS code. 2808 2809config SMP 2810 bool "Multi-Processing support" 2811 depends on SYS_SUPPORTS_SMP 2812 help 2813 This enables support for systems with more than one CPU. If you have 2814 a system with only one CPU, say N. If you have a system with more 2815 than one CPU, say Y. 2816 2817 If you say N here, the kernel will run on uni- and multiprocessor 2818 machines, but will use only one CPU of a multiprocessor machine. If 2819 you say Y here, the kernel will run on many, but not all, 2820 uniprocessor machines. On a uniprocessor machine, the kernel 2821 will run faster if you say N here. 2822 2823 People using multiprocessor machines who say Y here should also say 2824 Y to "Enhanced Real Time Clock Support", below. 2825 2826 See also the SMP-HOWTO available at 2827 <http://www.tldp.org/docs.html#howto>. 2828 2829 If you don't know what to do here, say N. 2830 2831config HOTPLUG_CPU 2832 bool "Support for hot-pluggable CPUs" 2833 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2834 help 2835 Say Y here to allow turning CPUs off and on. CPUs can be 2836 controlled through /sys/devices/system/cpu. 2837 (Note: power management support will enable this option 2838 automatically on SMP systems. ) 2839 Say N if you want to disable CPU hotplug. 2840 2841config SMP_UP 2842 bool 2843 2844config SYS_SUPPORTS_MIPS_CMP 2845 bool 2846 2847config SYS_SUPPORTS_MIPS_CPS 2848 bool 2849 2850config SYS_SUPPORTS_SMP 2851 bool 2852 2853config NR_CPUS_DEFAULT_4 2854 bool 2855 2856config NR_CPUS_DEFAULT_8 2857 bool 2858 2859config NR_CPUS_DEFAULT_16 2860 bool 2861 2862config NR_CPUS_DEFAULT_32 2863 bool 2864 2865config NR_CPUS_DEFAULT_64 2866 bool 2867 2868config NR_CPUS 2869 int "Maximum number of CPUs (2-256)" 2870 range 2 256 2871 depends on SMP 2872 default "4" if NR_CPUS_DEFAULT_4 2873 default "8" if NR_CPUS_DEFAULT_8 2874 default "16" if NR_CPUS_DEFAULT_16 2875 default "32" if NR_CPUS_DEFAULT_32 2876 default "64" if NR_CPUS_DEFAULT_64 2877 help 2878 This allows you to specify the maximum number of CPUs which this 2879 kernel will support. The maximum supported value is 32 for 32-bit 2880 kernel and 64 for 64-bit kernels; the minimum value which makes 2881 sense is 1 for Qemu (useful only for kernel debugging purposes) 2882 and 2 for all others. 2883 2884 This is purely to save memory - each supported CPU adds 2885 approximately eight kilobytes to the kernel image. For best 2886 performance should round up your number of processors to the next 2887 power of two. 2888 2889config MIPS_PERF_SHARED_TC_COUNTERS 2890 bool 2891 2892config MIPS_NR_CPU_NR_MAP_1024 2893 bool 2894 2895config MIPS_NR_CPU_NR_MAP 2896 int 2897 depends on SMP 2898 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2899 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2900 2901# 2902# Timer Interrupt Frequency Configuration 2903# 2904 2905choice 2906 prompt "Timer frequency" 2907 default HZ_250 2908 help 2909 Allows the configuration of the timer frequency. 2910 2911 config HZ_24 2912 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2913 2914 config HZ_48 2915 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2916 2917 config HZ_100 2918 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2919 2920 config HZ_128 2921 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2922 2923 config HZ_250 2924 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2925 2926 config HZ_256 2927 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2928 2929 config HZ_1000 2930 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2931 2932 config HZ_1024 2933 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2934 2935endchoice 2936 2937config SYS_SUPPORTS_24HZ 2938 bool 2939 2940config SYS_SUPPORTS_48HZ 2941 bool 2942 2943config SYS_SUPPORTS_100HZ 2944 bool 2945 2946config SYS_SUPPORTS_128HZ 2947 bool 2948 2949config SYS_SUPPORTS_250HZ 2950 bool 2951 2952config SYS_SUPPORTS_256HZ 2953 bool 2954 2955config SYS_SUPPORTS_1000HZ 2956 bool 2957 2958config SYS_SUPPORTS_1024HZ 2959 bool 2960 2961config SYS_SUPPORTS_ARBIT_HZ 2962 bool 2963 default y if !SYS_SUPPORTS_24HZ && \ 2964 !SYS_SUPPORTS_48HZ && \ 2965 !SYS_SUPPORTS_100HZ && \ 2966 !SYS_SUPPORTS_128HZ && \ 2967 !SYS_SUPPORTS_250HZ && \ 2968 !SYS_SUPPORTS_256HZ && \ 2969 !SYS_SUPPORTS_1000HZ && \ 2970 !SYS_SUPPORTS_1024HZ 2971 2972config HZ 2973 int 2974 default 24 if HZ_24 2975 default 48 if HZ_48 2976 default 100 if HZ_100 2977 default 128 if HZ_128 2978 default 250 if HZ_250 2979 default 256 if HZ_256 2980 default 1000 if HZ_1000 2981 default 1024 if HZ_1024 2982 2983config SCHED_HRTICK 2984 def_bool HIGH_RES_TIMERS 2985 2986config KEXEC 2987 bool "Kexec system call" 2988 select KEXEC_CORE 2989 help 2990 kexec is a system call that implements the ability to shutdown your 2991 current kernel, and to start another kernel. It is like a reboot 2992 but it is independent of the system firmware. And like a reboot 2993 you can start any kernel with it, not just Linux. 2994 2995 The name comes from the similarity to the exec system call. 2996 2997 It is an ongoing process to be certain the hardware in a machine 2998 is properly shutdown, so do not be surprised if this code does not 2999 initially work for you. As of this writing the exact hardware 3000 interface is strongly in flux, so no good recommendation can be 3001 made. 3002 3003config CRASH_DUMP 3004 bool "Kernel crash dumps" 3005 help 3006 Generate crash dump after being started by kexec. 3007 This should be normally only set in special crash dump kernels 3008 which are loaded in the main kernel with kexec-tools into 3009 a specially reserved region and then later executed after 3010 a crash by kdump/kexec. The crash dump kernel must be compiled 3011 to a memory address not used by the main kernel or firmware using 3012 PHYSICAL_START. 3013 3014config PHYSICAL_START 3015 hex "Physical address where the kernel is loaded" 3016 default "0xffffffff84000000" 3017 depends on CRASH_DUMP 3018 help 3019 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3020 If you plan to use kernel for capturing the crash dump change 3021 this value to start of the reserved region (the "X" value as 3022 specified in the "crashkernel=YM@XM" command line boot parameter 3023 passed to the panic-ed kernel). 3024 3025config SECCOMP 3026 bool "Enable seccomp to safely compute untrusted bytecode" 3027 depends on PROC_FS 3028 default y 3029 help 3030 This kernel feature is useful for number crunching applications 3031 that may need to compute untrusted bytecode during their 3032 execution. By using pipes or other transports made available to 3033 the process as file descriptors supporting the read/write 3034 syscalls, it's possible to isolate those applications in 3035 their own address space using seccomp. Once seccomp is 3036 enabled via /proc/<pid>/seccomp, it cannot be disabled 3037 and the task is only allowed to execute a few safe syscalls 3038 defined by each seccomp mode. 3039 3040 If unsure, say Y. Only embedded should say N here. 3041 3042config MIPS_O32_FP64_SUPPORT 3043 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3044 depends on 32BIT || MIPS32_O32 3045 help 3046 When this is enabled, the kernel will support use of 64-bit floating 3047 point registers with binaries using the O32 ABI along with the 3048 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3049 32-bit MIPS systems this support is at the cost of increasing the 3050 size and complexity of the compiled FPU emulator. Thus if you are 3051 running a MIPS32 system and know that none of your userland binaries 3052 will require 64-bit floating point, you may wish to reduce the size 3053 of your kernel & potentially improve FP emulation performance by 3054 saying N here. 3055 3056 Although binutils currently supports use of this flag the details 3057 concerning its effect upon the O32 ABI in userland are still being 3058 worked on. In order to avoid userland becoming dependant upon current 3059 behaviour before the details have been finalised, this option should 3060 be considered experimental and only enabled by those working upon 3061 said details. 3062 3063 If unsure, say N. 3064 3065config USE_OF 3066 bool 3067 select OF 3068 select OF_EARLY_FLATTREE 3069 select IRQ_DOMAIN 3070 3071config UHI_BOOT 3072 bool 3073 3074config BUILTIN_DTB 3075 bool 3076 3077choice 3078 prompt "Kernel appended dtb support" if USE_OF 3079 default MIPS_NO_APPENDED_DTB 3080 3081 config MIPS_NO_APPENDED_DTB 3082 bool "None" 3083 help 3084 Do not enable appended dtb support. 3085 3086 config MIPS_ELF_APPENDED_DTB 3087 bool "vmlinux" 3088 help 3089 With this option, the boot code will look for a device tree binary 3090 DTB) included in the vmlinux ELF section .appended_dtb. By default 3091 it is empty and the DTB can be appended using binutils command 3092 objcopy: 3093 3094 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3095 3096 This is meant as a backward compatiblity convenience for those 3097 systems with a bootloader that can't be upgraded to accommodate 3098 the documented boot protocol using a device tree. 3099 3100 config MIPS_RAW_APPENDED_DTB 3101 bool "vmlinux.bin or vmlinuz.bin" 3102 help 3103 With this option, the boot code will look for a device tree binary 3104 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3105 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3106 3107 This is meant as a backward compatibility convenience for those 3108 systems with a bootloader that can't be upgraded to accommodate 3109 the documented boot protocol using a device tree. 3110 3111 Beware that there is very little in terms of protection against 3112 this option being confused by leftover garbage in memory that might 3113 look like a DTB header after a reboot if no actual DTB is appended 3114 to vmlinux.bin. Do not leave this option active in a production kernel 3115 if you don't intend to always append a DTB. 3116endchoice 3117 3118choice 3119 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3120 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3121 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3122 !CAVIUM_OCTEON_SOC 3123 default MIPS_CMDLINE_FROM_BOOTLOADER 3124 3125 config MIPS_CMDLINE_FROM_DTB 3126 depends on USE_OF 3127 bool "Dtb kernel arguments if available" 3128 3129 config MIPS_CMDLINE_DTB_EXTEND 3130 depends on USE_OF 3131 bool "Extend dtb kernel arguments with bootloader arguments" 3132 3133 config MIPS_CMDLINE_FROM_BOOTLOADER 3134 bool "Bootloader kernel arguments if available" 3135 3136 config MIPS_CMDLINE_BUILTIN_EXTEND 3137 depends on CMDLINE_BOOL 3138 bool "Extend builtin kernel arguments with bootloader arguments" 3139endchoice 3140 3141endmenu 3142 3143config LOCKDEP_SUPPORT 3144 bool 3145 default y 3146 3147config STACKTRACE_SUPPORT 3148 bool 3149 default y 3150 3151config PGTABLE_LEVELS 3152 int 3153 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3154 default 3 if 64BIT && !PAGE_SIZE_64KB 3155 default 2 3156 3157config MIPS_AUTO_PFN_OFFSET 3158 bool 3159 3160menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3161 3162config PCI_DRIVERS_GENERIC 3163 select PCI_DOMAINS_GENERIC if PCI 3164 bool 3165 3166config PCI_DRIVERS_LEGACY 3167 def_bool !PCI_DRIVERS_GENERIC 3168 select NO_GENERIC_PCI_IOPORT_MAP 3169 select PCI_DOMAINS if PCI 3170 3171# 3172# ISA support is now enabled via select. Too many systems still have the one 3173# or other ISA chip on the board that users don't know about so don't expect 3174# users to choose the right thing ... 3175# 3176config ISA 3177 bool 3178 3179config TC 3180 bool "TURBOchannel support" 3181 depends on MACH_DECSTATION 3182 help 3183 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3184 processors. TURBOchannel programming specifications are available 3185 at: 3186 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3187 and: 3188 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3189 Linux driver support status is documented at: 3190 <http://www.linux-mips.org/wiki/DECstation> 3191 3192config MMU 3193 bool 3194 default y 3195 3196config ARCH_MMAP_RND_BITS_MIN 3197 default 12 if 64BIT 3198 default 8 3199 3200config ARCH_MMAP_RND_BITS_MAX 3201 default 18 if 64BIT 3202 default 15 3203 3204config ARCH_MMAP_RND_COMPAT_BITS_MIN 3205 default 8 3206 3207config ARCH_MMAP_RND_COMPAT_BITS_MAX 3208 default 15 3209 3210config I8253 3211 bool 3212 select CLKSRC_I8253 3213 select CLKEVT_I8253 3214 select MIPS_EXTERNAL_TIMER 3215 3216config ZONE_DMA 3217 bool 3218 3219config ZONE_DMA32 3220 bool 3221 3222endmenu 3223 3224config TRAD_SIGNALS 3225 bool 3226 3227config MIPS32_COMPAT 3228 bool 3229 3230config COMPAT 3231 bool 3232 3233config SYSVIPC_COMPAT 3234 bool 3235 3236config MIPS32_O32 3237 bool "Kernel support for o32 binaries" 3238 depends on 64BIT 3239 select ARCH_WANT_OLD_COMPAT_IPC 3240 select COMPAT 3241 select MIPS32_COMPAT 3242 select SYSVIPC_COMPAT if SYSVIPC 3243 help 3244 Select this option if you want to run o32 binaries. These are pure 3245 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3246 existing binaries are in this format. 3247 3248 If unsure, say Y. 3249 3250config MIPS32_N32 3251 bool "Kernel support for n32 binaries" 3252 depends on 64BIT 3253 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3254 select COMPAT 3255 select MIPS32_COMPAT 3256 select SYSVIPC_COMPAT if SYSVIPC 3257 help 3258 Select this option if you want to run n32 binaries. These are 3259 64-bit binaries using 32-bit quantities for addressing and certain 3260 data that would normally be 64-bit. They are used in special 3261 cases. 3262 3263 If unsure, say N. 3264 3265config BINFMT_ELF32 3266 bool 3267 default y if MIPS32_O32 || MIPS32_N32 3268 select ELFCORE 3269 3270menu "Power management options" 3271 3272config ARCH_HIBERNATION_POSSIBLE 3273 def_bool y 3274 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3275 3276config ARCH_SUSPEND_POSSIBLE 3277 def_bool y 3278 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3279 3280source "kernel/power/Kconfig" 3281 3282endmenu 3283 3284config MIPS_EXTERNAL_TIMER 3285 bool 3286 3287menu "CPU Power Management" 3288 3289if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3290source "drivers/cpufreq/Kconfig" 3291endif 3292 3293source "drivers/cpuidle/Kconfig" 3294 3295endmenu 3296 3297source "drivers/firmware/Kconfig" 3298 3299source "arch/mips/kvm/Kconfig" 3300 3301source "arch/mips/vdso/Kconfig" 3302