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_DEBUG_VIRTUAL if !64BIT 8 select ARCH_HAS_FORTIFY_SOURCE 9 select ARCH_HAS_KCOV 10 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA 11 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 12 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 13 select ARCH_HAS_UBSAN_SANITIZE_ALL 14 select ARCH_HAS_GCOV_PROFILE_ALL 15 select ARCH_KEEP_MEMBLOCK 16 select ARCH_SUPPORTS_UPROBES 17 select ARCH_USE_BUILTIN_BSWAP 18 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 19 select ARCH_USE_MEMTEST 20 select ARCH_USE_QUEUED_RWLOCKS 21 select ARCH_USE_QUEUED_SPINLOCKS 22 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES 23 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 24 select ARCH_WANT_IPC_PARSE_VERSION 25 select ARCH_WANT_LD_ORPHAN_WARN 26 select BUILDTIME_TABLE_SORT 27 select CLONE_BACKWARDS 28 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 29 select CPU_PM if CPU_IDLE 30 select GENERIC_ATOMIC64 if !64BIT 31 select GENERIC_CMOS_UPDATE 32 select GENERIC_CPU_AUTOPROBE 33 select GENERIC_FIND_FIRST_BIT 34 select GENERIC_GETTIMEOFDAY 35 select GENERIC_IOMAP 36 select GENERIC_IRQ_PROBE 37 select GENERIC_IRQ_SHOW 38 select GENERIC_ISA_DMA if EISA 39 select GENERIC_LIB_ASHLDI3 40 select GENERIC_LIB_ASHRDI3 41 select GENERIC_LIB_CMPDI2 42 select GENERIC_LIB_LSHRDI3 43 select GENERIC_LIB_UCMPDI2 44 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 45 select GENERIC_SMP_IDLE_THREAD 46 select GENERIC_TIME_VSYSCALL 47 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 48 select HANDLE_DOMAIN_IRQ 49 select HAVE_ARCH_COMPILER_H 50 select HAVE_ARCH_JUMP_LABEL 51 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT 52 select HAVE_ARCH_MMAP_RND_BITS if MMU 53 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 54 select HAVE_ARCH_SECCOMP_FILTER 55 select HAVE_ARCH_TRACEHOOK 56 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 57 select HAVE_ASM_MODVERSIONS 58 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 59 select HAVE_CONTEXT_TRACKING 60 select HAVE_TIF_NOHZ 61 select HAVE_C_RECORDMCOUNT 62 select HAVE_DEBUG_KMEMLEAK 63 select HAVE_DEBUG_STACKOVERFLOW 64 select HAVE_DMA_CONTIGUOUS 65 select HAVE_DYNAMIC_FTRACE 66 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 67 select HAVE_EXIT_THREAD 68 select HAVE_FAST_GUP 69 select HAVE_FTRACE_MCOUNT_RECORD 70 select HAVE_FUNCTION_GRAPH_TRACER 71 select HAVE_FUNCTION_TRACER 72 select HAVE_GCC_PLUGINS 73 select HAVE_GENERIC_VDSO 74 select HAVE_IDE 75 select HAVE_IOREMAP_PROT 76 select HAVE_IRQ_EXIT_ON_IRQ_STACK 77 select HAVE_IRQ_TIME_ACCOUNTING 78 select HAVE_KPROBES 79 select HAVE_KRETPROBES 80 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 81 select HAVE_MOD_ARCH_SPECIFIC 82 select HAVE_NMI 83 select HAVE_PERF_EVENTS 84 select HAVE_PERF_REGS 85 select HAVE_PERF_USER_STACK_DUMP 86 select HAVE_REGS_AND_STACK_ACCESS_API 87 select HAVE_RSEQ 88 select HAVE_SPARSE_SYSCALL_NR 89 select HAVE_STACKPROTECTOR 90 select HAVE_SYSCALL_TRACEPOINTS 91 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 92 select IRQ_FORCED_THREADING 93 select ISA if EISA 94 select MODULES_USE_ELF_REL if MODULES 95 select MODULES_USE_ELF_RELA if MODULES && 64BIT 96 select PERF_USE_VMALLOC 97 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI 98 select RTC_LIB 99 select SYSCTL_EXCEPTION_TRACE 100 select VIRT_TO_BUS 101 select ARCH_HAS_ELFCORE_COMPAT 102 103config MIPS_FIXUP_BIGPHYS_ADDR 104 bool 105 106config MIPS_GENERIC 107 bool 108 109config MACH_INGENIC 110 bool 111 select SYS_SUPPORTS_32BIT_KERNEL 112 select SYS_SUPPORTS_LITTLE_ENDIAN 113 select SYS_SUPPORTS_ZBOOT 114 select DMA_NONCOHERENT 115 select IRQ_MIPS_CPU 116 select PINCTRL 117 select GPIOLIB 118 select COMMON_CLK 119 select GENERIC_IRQ_CHIP 120 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 121 select USE_OF 122 select CPU_SUPPORTS_CPUFREQ 123 select MIPS_EXTERNAL_TIMER 124 125menu "Machine selection" 126 127choice 128 prompt "System type" 129 default MIPS_GENERIC_KERNEL 130 131config MIPS_GENERIC_KERNEL 132 bool "Generic board-agnostic MIPS kernel" 133 select ARCH_HAS_SETUP_DMA_OPS 134 select MIPS_GENERIC 135 select BOOT_RAW 136 select BUILTIN_DTB 137 select CEVT_R4K 138 select CLKSRC_MIPS_GIC 139 select COMMON_CLK 140 select CPU_MIPSR2_IRQ_EI 141 select CPU_MIPSR2_IRQ_VI 142 select CSRC_R4K 143 select DMA_NONCOHERENT 144 select HAVE_PCI 145 select IRQ_MIPS_CPU 146 select MIPS_AUTO_PFN_OFFSET 147 select MIPS_CPU_SCACHE 148 select MIPS_GIC 149 select MIPS_L1_CACHE_SHIFT_7 150 select NO_EXCEPT_FILL 151 select PCI_DRIVERS_GENERIC 152 select SMP_UP if SMP 153 select SWAP_IO_SPACE 154 select SYS_HAS_CPU_MIPS32_R1 155 select SYS_HAS_CPU_MIPS32_R2 156 select SYS_HAS_CPU_MIPS32_R6 157 select SYS_HAS_CPU_MIPS64_R1 158 select SYS_HAS_CPU_MIPS64_R2 159 select SYS_HAS_CPU_MIPS64_R6 160 select SYS_SUPPORTS_32BIT_KERNEL 161 select SYS_SUPPORTS_64BIT_KERNEL 162 select SYS_SUPPORTS_BIG_ENDIAN 163 select SYS_SUPPORTS_HIGHMEM 164 select SYS_SUPPORTS_LITTLE_ENDIAN 165 select SYS_SUPPORTS_MICROMIPS 166 select SYS_SUPPORTS_MIPS16 167 select SYS_SUPPORTS_MIPS_CPS 168 select SYS_SUPPORTS_MULTITHREADING 169 select SYS_SUPPORTS_RELOCATABLE 170 select SYS_SUPPORTS_SMARTMIPS 171 select SYS_SUPPORTS_ZBOOT 172 select UHI_BOOT 173 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 174 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 175 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 176 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 177 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 178 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 179 select USE_OF 180 help 181 Select this to build a kernel which aims to support multiple boards, 182 generally using a flattened device tree passed from the bootloader 183 using the boot protocol defined in the UHI (Unified Hosting 184 Interface) specification. 185 186config MIPS_ALCHEMY 187 bool "Alchemy processor based machines" 188 select PHYS_ADDR_T_64BIT 189 select CEVT_R4K 190 select CSRC_R4K 191 select IRQ_MIPS_CPU 192 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is 193 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 194 select SYS_HAS_CPU_MIPS32_R1 195 select SYS_SUPPORTS_32BIT_KERNEL 196 select SYS_SUPPORTS_APM_EMULATION 197 select GPIOLIB 198 select SYS_SUPPORTS_ZBOOT 199 select COMMON_CLK 200 201config AR7 202 bool "Texas Instruments AR7" 203 select BOOT_ELF32 204 select DMA_NONCOHERENT 205 select CEVT_R4K 206 select CSRC_R4K 207 select IRQ_MIPS_CPU 208 select NO_EXCEPT_FILL 209 select SWAP_IO_SPACE 210 select SYS_HAS_CPU_MIPS32_R1 211 select SYS_HAS_EARLY_PRINTK 212 select SYS_SUPPORTS_32BIT_KERNEL 213 select SYS_SUPPORTS_LITTLE_ENDIAN 214 select SYS_SUPPORTS_MIPS16 215 select SYS_SUPPORTS_ZBOOT_UART16550 216 select GPIOLIB 217 select VLYNQ 218 select HAVE_LEGACY_CLK 219 help 220 Support for the Texas Instruments AR7 System-on-a-Chip 221 family: TNETD7100, 7200 and 7300. 222 223config ATH25 224 bool "Atheros AR231x/AR531x SoC support" 225 select CEVT_R4K 226 select CSRC_R4K 227 select DMA_NONCOHERENT 228 select IRQ_MIPS_CPU 229 select IRQ_DOMAIN 230 select SYS_HAS_CPU_MIPS32_R1 231 select SYS_SUPPORTS_BIG_ENDIAN 232 select SYS_SUPPORTS_32BIT_KERNEL 233 select SYS_HAS_EARLY_PRINTK 234 help 235 Support for Atheros AR231x and Atheros AR531x based boards 236 237config ATH79 238 bool "Atheros AR71XX/AR724X/AR913X based boards" 239 select ARCH_HAS_RESET_CONTROLLER 240 select BOOT_RAW 241 select CEVT_R4K 242 select CSRC_R4K 243 select DMA_NONCOHERENT 244 select GPIOLIB 245 select PINCTRL 246 select COMMON_CLK 247 select IRQ_MIPS_CPU 248 select SYS_HAS_CPU_MIPS32_R2 249 select SYS_HAS_EARLY_PRINTK 250 select SYS_SUPPORTS_32BIT_KERNEL 251 select SYS_SUPPORTS_BIG_ENDIAN 252 select SYS_SUPPORTS_MIPS16 253 select SYS_SUPPORTS_ZBOOT_UART_PROM 254 select USE_OF 255 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 256 help 257 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 258 259config BMIPS_GENERIC 260 bool "Broadcom Generic BMIPS kernel" 261 select ARCH_HAS_RESET_CONTROLLER 262 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 263 select ARCH_HAS_PHYS_TO_DMA 264 select BOOT_RAW 265 select NO_EXCEPT_FILL 266 select USE_OF 267 select CEVT_R4K 268 select CSRC_R4K 269 select SYNC_R4K 270 select COMMON_CLK 271 select BCM6345_L1_IRQ 272 select BCM7038_L1_IRQ 273 select BCM7120_L2_IRQ 274 select BRCMSTB_L2_IRQ 275 select IRQ_MIPS_CPU 276 select DMA_NONCOHERENT 277 select SYS_SUPPORTS_32BIT_KERNEL 278 select SYS_SUPPORTS_LITTLE_ENDIAN 279 select SYS_SUPPORTS_BIG_ENDIAN 280 select SYS_SUPPORTS_HIGHMEM 281 select SYS_HAS_CPU_BMIPS32_3300 282 select SYS_HAS_CPU_BMIPS4350 283 select SYS_HAS_CPU_BMIPS4380 284 select SYS_HAS_CPU_BMIPS5000 285 select SWAP_IO_SPACE 286 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 287 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 288 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 289 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 290 select HARDIRQS_SW_RESEND 291 help 292 Build a generic DT-based kernel image that boots on select 293 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 294 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 295 must be set appropriately for your board. 296 297config BCM47XX 298 bool "Broadcom BCM47XX based boards" 299 select BOOT_RAW 300 select CEVT_R4K 301 select CSRC_R4K 302 select DMA_NONCOHERENT 303 select HAVE_PCI 304 select IRQ_MIPS_CPU 305 select SYS_HAS_CPU_MIPS32_R1 306 select NO_EXCEPT_FILL 307 select SYS_SUPPORTS_32BIT_KERNEL 308 select SYS_SUPPORTS_LITTLE_ENDIAN 309 select SYS_SUPPORTS_MIPS16 310 select SYS_SUPPORTS_ZBOOT 311 select SYS_HAS_EARLY_PRINTK 312 select USE_GENERIC_EARLY_PRINTK_8250 313 select GPIOLIB 314 select LEDS_GPIO_REGISTER 315 select BCM47XX_NVRAM 316 select BCM47XX_SPROM 317 select BCM47XX_SSB if !BCM47XX_BCMA 318 help 319 Support for BCM47XX based boards 320 321config BCM63XX 322 bool "Broadcom BCM63XX based boards" 323 select BOOT_RAW 324 select CEVT_R4K 325 select CSRC_R4K 326 select SYNC_R4K 327 select DMA_NONCOHERENT 328 select IRQ_MIPS_CPU 329 select SYS_SUPPORTS_32BIT_KERNEL 330 select SYS_SUPPORTS_BIG_ENDIAN 331 select SYS_HAS_EARLY_PRINTK 332 select SWAP_IO_SPACE 333 select GPIOLIB 334 select MIPS_L1_CACHE_SHIFT_4 335 select CLKDEV_LOOKUP 336 select HAVE_LEGACY_CLK 337 help 338 Support for BCM63XX based boards 339 340config MIPS_COBALT 341 bool "Cobalt Server" 342 select CEVT_R4K 343 select CSRC_R4K 344 select CEVT_GT641XX 345 select DMA_NONCOHERENT 346 select FORCE_PCI 347 select I8253 348 select I8259 349 select IRQ_MIPS_CPU 350 select IRQ_GT641XX 351 select PCI_GT64XXX_PCI0 352 select SYS_HAS_CPU_NEVADA 353 select SYS_HAS_EARLY_PRINTK 354 select SYS_SUPPORTS_32BIT_KERNEL 355 select SYS_SUPPORTS_64BIT_KERNEL 356 select SYS_SUPPORTS_LITTLE_ENDIAN 357 select USE_GENERIC_EARLY_PRINTK_8250 358 359config MACH_DECSTATION 360 bool "DECstations" 361 select BOOT_ELF32 362 select CEVT_DS1287 363 select CEVT_R4K if CPU_R4X00 364 select CSRC_IOASIC 365 select CSRC_R4K if CPU_R4X00 366 select CPU_DADDI_WORKAROUNDS if 64BIT 367 select CPU_R4000_WORKAROUNDS if 64BIT 368 select CPU_R4400_WORKAROUNDS if 64BIT 369 select DMA_NONCOHERENT 370 select NO_IOPORT_MAP 371 select IRQ_MIPS_CPU 372 select SYS_HAS_CPU_R3000 373 select SYS_HAS_CPU_R4X00 374 select SYS_SUPPORTS_32BIT_KERNEL 375 select SYS_SUPPORTS_64BIT_KERNEL 376 select SYS_SUPPORTS_LITTLE_ENDIAN 377 select SYS_SUPPORTS_128HZ 378 select SYS_SUPPORTS_256HZ 379 select SYS_SUPPORTS_1024HZ 380 select MIPS_L1_CACHE_SHIFT_4 381 help 382 This enables support for DEC's MIPS based workstations. For details 383 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 384 DECstation porting pages on <http://decstation.unix-ag.org/>. 385 386 If you have one of the following DECstation Models you definitely 387 want to choose R4xx0 for the CPU Type: 388 389 DECstation 5000/50 390 DECstation 5000/150 391 DECstation 5000/260 392 DECsystem 5900/260 393 394 otherwise choose R3000. 395 396config MACH_JAZZ 397 bool "Jazz family of machines" 398 select ARC_MEMORY 399 select ARC_PROMLIB 400 select ARCH_MIGHT_HAVE_PC_PARPORT 401 select ARCH_MIGHT_HAVE_PC_SERIO 402 select DMA_OPS 403 select FW_ARC 404 select FW_ARC32 405 select ARCH_MAY_HAVE_PC_FDC 406 select CEVT_R4K 407 select CSRC_R4K 408 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 409 select GENERIC_ISA_DMA 410 select HAVE_PCSPKR_PLATFORM 411 select IRQ_MIPS_CPU 412 select I8253 413 select I8259 414 select ISA 415 select SYS_HAS_CPU_R4X00 416 select SYS_SUPPORTS_32BIT_KERNEL 417 select SYS_SUPPORTS_64BIT_KERNEL 418 select SYS_SUPPORTS_100HZ 419 select SYS_SUPPORTS_LITTLE_ENDIAN 420 help 421 This a family of machines based on the MIPS R4030 chipset which was 422 used by several vendors to build RISC/os and Windows NT workstations. 423 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 424 Olivetti M700-10 workstations. 425 426config MACH_INGENIC_SOC 427 bool "Ingenic SoC based machines" 428 select MIPS_GENERIC 429 select MACH_INGENIC 430 select SYS_SUPPORTS_ZBOOT_UART16550 431 432config LANTIQ 433 bool "Lantiq based platforms" 434 select DMA_NONCOHERENT 435 select IRQ_MIPS_CPU 436 select CEVT_R4K 437 select CSRC_R4K 438 select SYS_HAS_CPU_MIPS32_R1 439 select SYS_HAS_CPU_MIPS32_R2 440 select SYS_SUPPORTS_BIG_ENDIAN 441 select SYS_SUPPORTS_32BIT_KERNEL 442 select SYS_SUPPORTS_MIPS16 443 select SYS_SUPPORTS_MULTITHREADING 444 select SYS_SUPPORTS_VPE_LOADER 445 select SYS_HAS_EARLY_PRINTK 446 select GPIOLIB 447 select SWAP_IO_SPACE 448 select BOOT_RAW 449 select CLKDEV_LOOKUP 450 select HAVE_LEGACY_CLK 451 select USE_OF 452 select PINCTRL 453 select PINCTRL_LANTIQ 454 select ARCH_HAS_RESET_CONTROLLER 455 select RESET_CONTROLLER 456 457config MACH_LOONGSON32 458 bool "Loongson 32-bit family of machines" 459 select SYS_SUPPORTS_ZBOOT 460 help 461 This enables support for the Loongson-1 family of machines. 462 463 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 464 the Institute of Computing Technology (ICT), Chinese Academy of 465 Sciences (CAS). 466 467config MACH_LOONGSON2EF 468 bool "Loongson-2E/F family of machines" 469 select SYS_SUPPORTS_ZBOOT 470 help 471 This enables the support of early Loongson-2E/F family of machines. 472 473config MACH_LOONGSON64 474 bool "Loongson 64-bit family of machines" 475 select ARCH_SPARSEMEM_ENABLE 476 select ARCH_MIGHT_HAVE_PC_PARPORT 477 select ARCH_MIGHT_HAVE_PC_SERIO 478 select GENERIC_ISA_DMA_SUPPORT_BROKEN 479 select BOOT_ELF32 480 select BOARD_SCACHE 481 select CSRC_R4K 482 select CEVT_R4K 483 select CPU_HAS_WB 484 select FORCE_PCI 485 select ISA 486 select I8259 487 select IRQ_MIPS_CPU 488 select NO_EXCEPT_FILL 489 select NR_CPUS_DEFAULT_64 490 select USE_GENERIC_EARLY_PRINTK_8250 491 select PCI_DRIVERS_GENERIC 492 select SYS_HAS_CPU_LOONGSON64 493 select SYS_HAS_EARLY_PRINTK 494 select SYS_SUPPORTS_SMP 495 select SYS_SUPPORTS_HOTPLUG_CPU 496 select SYS_SUPPORTS_NUMA 497 select SYS_SUPPORTS_64BIT_KERNEL 498 select SYS_SUPPORTS_HIGHMEM 499 select SYS_SUPPORTS_LITTLE_ENDIAN 500 select SYS_SUPPORTS_ZBOOT 501 select SYS_SUPPORTS_RELOCATABLE 502 select ZONE_DMA32 503 select COMMON_CLK 504 select USE_OF 505 select BUILTIN_DTB 506 select PCI_HOST_GENERIC 507 help 508 This enables the support of Loongson-2/3 family of machines. 509 510 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 511 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 512 and Loongson-2F which will be removed), developed by the Institute 513 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 514 515config MACH_PISTACHIO 516 bool "IMG Pistachio SoC based boards" 517 select BOOT_ELF32 518 select BOOT_RAW 519 select CEVT_R4K 520 select CLKSRC_MIPS_GIC 521 select COMMON_CLK 522 select CSRC_R4K 523 select DMA_NONCOHERENT 524 select GPIOLIB 525 select IRQ_MIPS_CPU 526 select MFD_SYSCON 527 select MIPS_CPU_SCACHE 528 select MIPS_GIC 529 select PINCTRL 530 select REGULATOR 531 select SYS_HAS_CPU_MIPS32_R2 532 select SYS_SUPPORTS_32BIT_KERNEL 533 select SYS_SUPPORTS_LITTLE_ENDIAN 534 select SYS_SUPPORTS_MIPS_CPS 535 select SYS_SUPPORTS_MULTITHREADING 536 select SYS_SUPPORTS_RELOCATABLE 537 select SYS_SUPPORTS_ZBOOT 538 select SYS_HAS_EARLY_PRINTK 539 select USE_GENERIC_EARLY_PRINTK_8250 540 select USE_OF 541 help 542 This enables support for the IMG Pistachio SoC platform. 543 544config MIPS_MALTA 545 bool "MIPS Malta board" 546 select ARCH_MAY_HAVE_PC_FDC 547 select ARCH_MIGHT_HAVE_PC_PARPORT 548 select ARCH_MIGHT_HAVE_PC_SERIO 549 select BOOT_ELF32 550 select BOOT_RAW 551 select BUILTIN_DTB 552 select CEVT_R4K 553 select CLKSRC_MIPS_GIC 554 select COMMON_CLK 555 select CSRC_R4K 556 select DMA_NONCOHERENT 557 select GENERIC_ISA_DMA 558 select HAVE_PCSPKR_PLATFORM 559 select HAVE_PCI 560 select I8253 561 select I8259 562 select IRQ_MIPS_CPU 563 select MIPS_BONITO64 564 select MIPS_CPU_SCACHE 565 select MIPS_GIC 566 select MIPS_L1_CACHE_SHIFT_6 567 select MIPS_MSC 568 select PCI_GT64XXX_PCI0 569 select SMP_UP if SMP 570 select SWAP_IO_SPACE 571 select SYS_HAS_CPU_MIPS32_R1 572 select SYS_HAS_CPU_MIPS32_R2 573 select SYS_HAS_CPU_MIPS32_R3_5 574 select SYS_HAS_CPU_MIPS32_R5 575 select SYS_HAS_CPU_MIPS32_R6 576 select SYS_HAS_CPU_MIPS64_R1 577 select SYS_HAS_CPU_MIPS64_R2 578 select SYS_HAS_CPU_MIPS64_R6 579 select SYS_HAS_CPU_NEVADA 580 select SYS_HAS_CPU_RM7000 581 select SYS_SUPPORTS_32BIT_KERNEL 582 select SYS_SUPPORTS_64BIT_KERNEL 583 select SYS_SUPPORTS_BIG_ENDIAN 584 select SYS_SUPPORTS_HIGHMEM 585 select SYS_SUPPORTS_LITTLE_ENDIAN 586 select SYS_SUPPORTS_MICROMIPS 587 select SYS_SUPPORTS_MIPS16 588 select SYS_SUPPORTS_MIPS_CMP 589 select SYS_SUPPORTS_MIPS_CPS 590 select SYS_SUPPORTS_MULTITHREADING 591 select SYS_SUPPORTS_RELOCATABLE 592 select SYS_SUPPORTS_SMARTMIPS 593 select SYS_SUPPORTS_VPE_LOADER 594 select SYS_SUPPORTS_ZBOOT 595 select USE_OF 596 select WAR_ICACHE_REFILLS 597 select ZONE_DMA32 if 64BIT 598 help 599 This enables support for the MIPS Technologies Malta evaluation 600 board. 601 602config MACH_PIC32 603 bool "Microchip PIC32 Family" 604 help 605 This enables support for the Microchip PIC32 family of platforms. 606 607 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 608 microcontrollers. 609 610config MACH_VR41XX 611 bool "NEC VR4100 series based machines" 612 select CEVT_R4K 613 select CSRC_R4K 614 select SYS_HAS_CPU_VR41XX 615 select SYS_SUPPORTS_MIPS16 616 select GPIOLIB 617 618config MACH_NINTENDO64 619 bool "Nintendo 64 console" 620 select CEVT_R4K 621 select CSRC_R4K 622 select SYS_HAS_CPU_R4300 623 select SYS_SUPPORTS_BIG_ENDIAN 624 select SYS_SUPPORTS_ZBOOT 625 select SYS_SUPPORTS_32BIT_KERNEL 626 select SYS_SUPPORTS_64BIT_KERNEL 627 select DMA_NONCOHERENT 628 select IRQ_MIPS_CPU 629 630config RALINK 631 bool "Ralink based machines" 632 select CEVT_R4K 633 select CSRC_R4K 634 select BOOT_RAW 635 select DMA_NONCOHERENT 636 select IRQ_MIPS_CPU 637 select USE_OF 638 select SYS_HAS_CPU_MIPS32_R1 639 select SYS_HAS_CPU_MIPS32_R2 640 select SYS_SUPPORTS_32BIT_KERNEL 641 select SYS_SUPPORTS_LITTLE_ENDIAN 642 select SYS_SUPPORTS_MIPS16 643 select SYS_SUPPORTS_ZBOOT 644 select SYS_HAS_EARLY_PRINTK 645 select CLKDEV_LOOKUP 646 select ARCH_HAS_RESET_CONTROLLER 647 select RESET_CONTROLLER 648 649config MACH_REALTEK_RTL 650 bool "Realtek RTL838x/RTL839x based machines" 651 select MIPS_GENERIC 652 select DMA_NONCOHERENT 653 select IRQ_MIPS_CPU 654 select CSRC_R4K 655 select CEVT_R4K 656 select SYS_HAS_CPU_MIPS32_R1 657 select SYS_HAS_CPU_MIPS32_R2 658 select SYS_SUPPORTS_BIG_ENDIAN 659 select SYS_SUPPORTS_32BIT_KERNEL 660 select SYS_SUPPORTS_MIPS16 661 select SYS_SUPPORTS_MULTITHREADING 662 select SYS_SUPPORTS_VPE_LOADER 663 select SYS_HAS_EARLY_PRINTK 664 select SYS_HAS_EARLY_PRINTK_8250 665 select USE_GENERIC_EARLY_PRINTK_8250 666 select BOOT_RAW 667 select PINCTRL 668 select USE_OF 669 670config SGI_IP22 671 bool "SGI IP22 (Indy/Indigo2)" 672 select ARC_MEMORY 673 select ARC_PROMLIB 674 select FW_ARC 675 select FW_ARC32 676 select ARCH_MIGHT_HAVE_PC_SERIO 677 select BOOT_ELF32 678 select CEVT_R4K 679 select CSRC_R4K 680 select DEFAULT_SGI_PARTITION 681 select DMA_NONCOHERENT 682 select HAVE_EISA 683 select I8253 684 select I8259 685 select IP22_CPU_SCACHE 686 select IRQ_MIPS_CPU 687 select GENERIC_ISA_DMA_SUPPORT_BROKEN 688 select SGI_HAS_I8042 689 select SGI_HAS_INDYDOG 690 select SGI_HAS_HAL2 691 select SGI_HAS_SEEQ 692 select SGI_HAS_WD93 693 select SGI_HAS_ZILOG 694 select SWAP_IO_SPACE 695 select SYS_HAS_CPU_R4X00 696 select SYS_HAS_CPU_R5000 697 select SYS_HAS_EARLY_PRINTK 698 select SYS_SUPPORTS_32BIT_KERNEL 699 select SYS_SUPPORTS_64BIT_KERNEL 700 select SYS_SUPPORTS_BIG_ENDIAN 701 select WAR_R4600_V1_INDEX_ICACHEOP 702 select WAR_R4600_V1_HIT_CACHEOP 703 select WAR_R4600_V2_HIT_CACHEOP 704 select MIPS_L1_CACHE_SHIFT_7 705 help 706 This are the SGI Indy, Challenge S and Indigo2, as well as certain 707 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 708 that runs on these, say Y here. 709 710config SGI_IP27 711 bool "SGI IP27 (Origin200/2000)" 712 select ARCH_HAS_PHYS_TO_DMA 713 select ARCH_SPARSEMEM_ENABLE 714 select FW_ARC 715 select FW_ARC64 716 select ARC_CMDLINE_ONLY 717 select BOOT_ELF64 718 select DEFAULT_SGI_PARTITION 719 select FORCE_PCI 720 select SYS_HAS_EARLY_PRINTK 721 select HAVE_PCI 722 select IRQ_MIPS_CPU 723 select IRQ_DOMAIN_HIERARCHY 724 select NR_CPUS_DEFAULT_64 725 select PCI_DRIVERS_GENERIC 726 select PCI_XTALK_BRIDGE 727 select SYS_HAS_CPU_R10000 728 select SYS_SUPPORTS_64BIT_KERNEL 729 select SYS_SUPPORTS_BIG_ENDIAN 730 select SYS_SUPPORTS_NUMA 731 select SYS_SUPPORTS_SMP 732 select WAR_R10000_LLSC 733 select MIPS_L1_CACHE_SHIFT_7 734 select NUMA 735 help 736 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 737 workstations. To compile a Linux kernel that runs on these, say Y 738 here. 739 740config SGI_IP28 741 bool "SGI IP28 (Indigo2 R10k)" 742 select ARC_MEMORY 743 select ARC_PROMLIB 744 select FW_ARC 745 select FW_ARC64 746 select ARCH_MIGHT_HAVE_PC_SERIO 747 select BOOT_ELF64 748 select CEVT_R4K 749 select CSRC_R4K 750 select DEFAULT_SGI_PARTITION 751 select DMA_NONCOHERENT 752 select GENERIC_ISA_DMA_SUPPORT_BROKEN 753 select IRQ_MIPS_CPU 754 select HAVE_EISA 755 select I8253 756 select I8259 757 select SGI_HAS_I8042 758 select SGI_HAS_INDYDOG 759 select SGI_HAS_HAL2 760 select SGI_HAS_SEEQ 761 select SGI_HAS_WD93 762 select SGI_HAS_ZILOG 763 select SWAP_IO_SPACE 764 select SYS_HAS_CPU_R10000 765 select SYS_HAS_EARLY_PRINTK 766 select SYS_SUPPORTS_64BIT_KERNEL 767 select SYS_SUPPORTS_BIG_ENDIAN 768 select WAR_R10000_LLSC 769 select MIPS_L1_CACHE_SHIFT_7 770 help 771 This is the SGI Indigo2 with R10000 processor. To compile a Linux 772 kernel that runs on these, say Y here. 773 774config SGI_IP30 775 bool "SGI IP30 (Octane/Octane2)" 776 select ARCH_HAS_PHYS_TO_DMA 777 select FW_ARC 778 select FW_ARC64 779 select BOOT_ELF64 780 select CEVT_R4K 781 select CSRC_R4K 782 select FORCE_PCI 783 select SYNC_R4K if SMP 784 select ZONE_DMA32 785 select HAVE_PCI 786 select IRQ_MIPS_CPU 787 select IRQ_DOMAIN_HIERARCHY 788 select NR_CPUS_DEFAULT_2 789 select PCI_DRIVERS_GENERIC 790 select PCI_XTALK_BRIDGE 791 select SYS_HAS_EARLY_PRINTK 792 select SYS_HAS_CPU_R10000 793 select SYS_SUPPORTS_64BIT_KERNEL 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_SMP 796 select WAR_R10000_LLSC 797 select MIPS_L1_CACHE_SHIFT_7 798 select ARC_MEMORY 799 help 800 These are the SGI Octane and Octane2 graphics workstations. To 801 compile a Linux kernel that runs on these, say Y here. 802 803config SGI_IP32 804 bool "SGI IP32 (O2)" 805 select ARC_MEMORY 806 select ARC_PROMLIB 807 select ARCH_HAS_PHYS_TO_DMA 808 select FW_ARC 809 select FW_ARC32 810 select BOOT_ELF32 811 select CEVT_R4K 812 select CSRC_R4K 813 select DMA_NONCOHERENT 814 select HAVE_PCI 815 select IRQ_MIPS_CPU 816 select R5000_CPU_SCACHE 817 select RM7000_CPU_SCACHE 818 select SYS_HAS_CPU_R5000 819 select SYS_HAS_CPU_R10000 if BROKEN 820 select SYS_HAS_CPU_RM7000 821 select SYS_HAS_CPU_NEVADA 822 select SYS_SUPPORTS_64BIT_KERNEL 823 select SYS_SUPPORTS_BIG_ENDIAN 824 select WAR_ICACHE_REFILLS 825 help 826 If you want this kernel to run on SGI O2 workstation, say Y here. 827 828config SIBYTE_CRHINE 829 bool "Sibyte BCM91120C-CRhine" 830 select BOOT_ELF32 831 select SIBYTE_BCM1120 832 select SWAP_IO_SPACE 833 select SYS_HAS_CPU_SB1 834 select SYS_SUPPORTS_BIG_ENDIAN 835 select SYS_SUPPORTS_LITTLE_ENDIAN 836 837config SIBYTE_CARMEL 838 bool "Sibyte BCM91120x-Carmel" 839 select BOOT_ELF32 840 select SIBYTE_BCM1120 841 select SWAP_IO_SPACE 842 select SYS_HAS_CPU_SB1 843 select SYS_SUPPORTS_BIG_ENDIAN 844 select SYS_SUPPORTS_LITTLE_ENDIAN 845 846config SIBYTE_CRHONE 847 bool "Sibyte BCM91125C-CRhone" 848 select BOOT_ELF32 849 select SIBYTE_BCM1125 850 select SWAP_IO_SPACE 851 select SYS_HAS_CPU_SB1 852 select SYS_SUPPORTS_BIG_ENDIAN 853 select SYS_SUPPORTS_HIGHMEM 854 select SYS_SUPPORTS_LITTLE_ENDIAN 855 856config SIBYTE_RHONE 857 bool "Sibyte BCM91125E-Rhone" 858 select BOOT_ELF32 859 select SIBYTE_BCM1125H 860 select SWAP_IO_SPACE 861 select SYS_HAS_CPU_SB1 862 select SYS_SUPPORTS_BIG_ENDIAN 863 select SYS_SUPPORTS_LITTLE_ENDIAN 864 865config SIBYTE_SWARM 866 bool "Sibyte BCM91250A-SWARM" 867 select BOOT_ELF32 868 select HAVE_PATA_PLATFORM 869 select SIBYTE_SB1250 870 select SWAP_IO_SPACE 871 select SYS_HAS_CPU_SB1 872 select SYS_SUPPORTS_BIG_ENDIAN 873 select SYS_SUPPORTS_HIGHMEM 874 select SYS_SUPPORTS_LITTLE_ENDIAN 875 select ZONE_DMA32 if 64BIT 876 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 877 878config SIBYTE_LITTLESUR 879 bool "Sibyte BCM91250C2-LittleSur" 880 select BOOT_ELF32 881 select HAVE_PATA_PLATFORM 882 select SIBYTE_SB1250 883 select SWAP_IO_SPACE 884 select SYS_HAS_CPU_SB1 885 select SYS_SUPPORTS_BIG_ENDIAN 886 select SYS_SUPPORTS_HIGHMEM 887 select SYS_SUPPORTS_LITTLE_ENDIAN 888 select ZONE_DMA32 if 64BIT 889 890config SIBYTE_SENTOSA 891 bool "Sibyte BCM91250E-Sentosa" 892 select BOOT_ELF32 893 select SIBYTE_SB1250 894 select SWAP_IO_SPACE 895 select SYS_HAS_CPU_SB1 896 select SYS_SUPPORTS_BIG_ENDIAN 897 select SYS_SUPPORTS_LITTLE_ENDIAN 898 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 899 900config SIBYTE_BIGSUR 901 bool "Sibyte BCM91480B-BigSur" 902 select BOOT_ELF32 903 select NR_CPUS_DEFAULT_4 904 select SIBYTE_BCM1x80 905 select SWAP_IO_SPACE 906 select SYS_HAS_CPU_SB1 907 select SYS_SUPPORTS_BIG_ENDIAN 908 select SYS_SUPPORTS_HIGHMEM 909 select SYS_SUPPORTS_LITTLE_ENDIAN 910 select ZONE_DMA32 if 64BIT 911 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 912 913config SNI_RM 914 bool "SNI RM200/300/400" 915 select ARC_MEMORY 916 select ARC_PROMLIB 917 select FW_ARC if CPU_LITTLE_ENDIAN 918 select FW_ARC32 if CPU_LITTLE_ENDIAN 919 select FW_SNIPROM if CPU_BIG_ENDIAN 920 select ARCH_MAY_HAVE_PC_FDC 921 select ARCH_MIGHT_HAVE_PC_PARPORT 922 select ARCH_MIGHT_HAVE_PC_SERIO 923 select BOOT_ELF32 924 select CEVT_R4K 925 select CSRC_R4K 926 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 927 select DMA_NONCOHERENT 928 select GENERIC_ISA_DMA 929 select HAVE_EISA 930 select HAVE_PCSPKR_PLATFORM 931 select HAVE_PCI 932 select IRQ_MIPS_CPU 933 select I8253 934 select I8259 935 select ISA 936 select MIPS_L1_CACHE_SHIFT_6 937 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 938 select SYS_HAS_CPU_R4X00 939 select SYS_HAS_CPU_R5000 940 select SYS_HAS_CPU_R10000 941 select R5000_CPU_SCACHE 942 select SYS_HAS_EARLY_PRINTK 943 select SYS_SUPPORTS_32BIT_KERNEL 944 select SYS_SUPPORTS_64BIT_KERNEL 945 select SYS_SUPPORTS_BIG_ENDIAN 946 select SYS_SUPPORTS_HIGHMEM 947 select SYS_SUPPORTS_LITTLE_ENDIAN 948 select WAR_R4600_V2_HIT_CACHEOP 949 help 950 The SNI RM200/300/400 are MIPS-based machines manufactured by 951 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 952 Technology and now in turn merged with Fujitsu. Say Y here to 953 support this machine type. 954 955config MACH_TX39XX 956 bool "Toshiba TX39 series based machines" 957 958config MACH_TX49XX 959 bool "Toshiba TX49 series based machines" 960 select WAR_TX49XX_ICACHE_INDEX_INV 961 962config MIKROTIK_RB532 963 bool "Mikrotik RB532 boards" 964 select CEVT_R4K 965 select CSRC_R4K 966 select DMA_NONCOHERENT 967 select HAVE_PCI 968 select IRQ_MIPS_CPU 969 select SYS_HAS_CPU_MIPS32_R1 970 select SYS_SUPPORTS_32BIT_KERNEL 971 select SYS_SUPPORTS_LITTLE_ENDIAN 972 select SWAP_IO_SPACE 973 select BOOT_RAW 974 select GPIOLIB 975 select MIPS_L1_CACHE_SHIFT_4 976 help 977 Support the Mikrotik(tm) RouterBoard 532 series, 978 based on the IDT RC32434 SoC. 979 980config CAVIUM_OCTEON_SOC 981 bool "Cavium Networks Octeon SoC based boards" 982 select CEVT_R4K 983 select ARCH_HAS_PHYS_TO_DMA 984 select HAVE_RAPIDIO 985 select PHYS_ADDR_T_64BIT 986 select SYS_SUPPORTS_64BIT_KERNEL 987 select SYS_SUPPORTS_BIG_ENDIAN 988 select EDAC_SUPPORT 989 select EDAC_ATOMIC_SCRUB 990 select SYS_SUPPORTS_LITTLE_ENDIAN 991 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 992 select SYS_HAS_EARLY_PRINTK 993 select SYS_HAS_CPU_CAVIUM_OCTEON 994 select HAVE_PCI 995 select HAVE_PLAT_DELAY 996 select HAVE_PLAT_FW_INIT_CMDLINE 997 select HAVE_PLAT_MEMCPY 998 select ZONE_DMA32 999 select HOLES_IN_ZONE 1000 select GPIOLIB 1001 select USE_OF 1002 select ARCH_SPARSEMEM_ENABLE 1003 select SYS_SUPPORTS_SMP 1004 select NR_CPUS_DEFAULT_64 1005 select MIPS_NR_CPU_NR_MAP_1024 1006 select BUILTIN_DTB 1007 select MTD 1008 select MTD_COMPLEX_MAPPINGS 1009 select SWIOTLB 1010 select SYS_SUPPORTS_RELOCATABLE 1011 help 1012 This option supports all of the Octeon reference boards from Cavium 1013 Networks. It builds a kernel that dynamically determines the Octeon 1014 CPU type and supports all known board reference implementations. 1015 Some of the supported boards are: 1016 EBT3000 1017 EBH3000 1018 EBH3100 1019 Thunder 1020 Kodama 1021 Hikari 1022 Say Y here for most Octeon reference boards. 1023 1024config NLM_XLR_BOARD 1025 bool "Netlogic XLR/XLS based systems" 1026 select BOOT_ELF32 1027 select NLM_COMMON 1028 select SYS_HAS_CPU_XLR 1029 select SYS_SUPPORTS_SMP 1030 select HAVE_PCI 1031 select SWAP_IO_SPACE 1032 select SYS_SUPPORTS_32BIT_KERNEL 1033 select SYS_SUPPORTS_64BIT_KERNEL 1034 select PHYS_ADDR_T_64BIT 1035 select SYS_SUPPORTS_BIG_ENDIAN 1036 select SYS_SUPPORTS_HIGHMEM 1037 select NR_CPUS_DEFAULT_32 1038 select CEVT_R4K 1039 select CSRC_R4K 1040 select IRQ_MIPS_CPU 1041 select ZONE_DMA32 if 64BIT 1042 select SYNC_R4K 1043 select SYS_HAS_EARLY_PRINTK 1044 select SYS_SUPPORTS_ZBOOT 1045 select SYS_SUPPORTS_ZBOOT_UART16550 1046 help 1047 Support for systems based on Netlogic XLR and XLS processors. 1048 Say Y here if you have a XLR or XLS based board. 1049 1050config NLM_XLP_BOARD 1051 bool "Netlogic XLP based systems" 1052 select BOOT_ELF32 1053 select NLM_COMMON 1054 select SYS_HAS_CPU_XLP 1055 select SYS_SUPPORTS_SMP 1056 select HAVE_PCI 1057 select SYS_SUPPORTS_32BIT_KERNEL 1058 select SYS_SUPPORTS_64BIT_KERNEL 1059 select PHYS_ADDR_T_64BIT 1060 select GPIOLIB 1061 select SYS_SUPPORTS_BIG_ENDIAN 1062 select SYS_SUPPORTS_LITTLE_ENDIAN 1063 select SYS_SUPPORTS_HIGHMEM 1064 select NR_CPUS_DEFAULT_32 1065 select CEVT_R4K 1066 select CSRC_R4K 1067 select IRQ_MIPS_CPU 1068 select ZONE_DMA32 if 64BIT 1069 select SYNC_R4K 1070 select SYS_HAS_EARLY_PRINTK 1071 select USE_OF 1072 select SYS_SUPPORTS_ZBOOT 1073 select SYS_SUPPORTS_ZBOOT_UART16550 1074 help 1075 This board is based on Netlogic XLP Processor. 1076 Say Y here if you have a XLP based board. 1077 1078endchoice 1079 1080source "arch/mips/alchemy/Kconfig" 1081source "arch/mips/ath25/Kconfig" 1082source "arch/mips/ath79/Kconfig" 1083source "arch/mips/bcm47xx/Kconfig" 1084source "arch/mips/bcm63xx/Kconfig" 1085source "arch/mips/bmips/Kconfig" 1086source "arch/mips/generic/Kconfig" 1087source "arch/mips/ingenic/Kconfig" 1088source "arch/mips/jazz/Kconfig" 1089source "arch/mips/lantiq/Kconfig" 1090source "arch/mips/pic32/Kconfig" 1091source "arch/mips/pistachio/Kconfig" 1092source "arch/mips/ralink/Kconfig" 1093source "arch/mips/sgi-ip27/Kconfig" 1094source "arch/mips/sibyte/Kconfig" 1095source "arch/mips/txx9/Kconfig" 1096source "arch/mips/vr41xx/Kconfig" 1097source "arch/mips/cavium-octeon/Kconfig" 1098source "arch/mips/loongson2ef/Kconfig" 1099source "arch/mips/loongson32/Kconfig" 1100source "arch/mips/loongson64/Kconfig" 1101source "arch/mips/netlogic/Kconfig" 1102 1103endmenu 1104 1105config GENERIC_HWEIGHT 1106 bool 1107 default y 1108 1109config GENERIC_CALIBRATE_DELAY 1110 bool 1111 default y 1112 1113config SCHED_OMIT_FRAME_POINTER 1114 bool 1115 default y 1116 1117# 1118# Select some configuration options automatically based on user selections. 1119# 1120config FW_ARC 1121 bool 1122 1123config ARCH_MAY_HAVE_PC_FDC 1124 bool 1125 1126config BOOT_RAW 1127 bool 1128 1129config CEVT_BCM1480 1130 bool 1131 1132config CEVT_DS1287 1133 bool 1134 1135config CEVT_GT641XX 1136 bool 1137 1138config CEVT_R4K 1139 bool 1140 1141config CEVT_SB1250 1142 bool 1143 1144config CEVT_TXX9 1145 bool 1146 1147config CSRC_BCM1480 1148 bool 1149 1150config CSRC_IOASIC 1151 bool 1152 1153config CSRC_R4K 1154 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1155 bool 1156 1157config CSRC_SB1250 1158 bool 1159 1160config MIPS_CLOCK_VSYSCALL 1161 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1162 1163config GPIO_TXX9 1164 select GPIOLIB 1165 bool 1166 1167config FW_CFE 1168 bool 1169 1170config ARCH_SUPPORTS_UPROBES 1171 bool 1172 1173config DMA_PERDEV_COHERENT 1174 bool 1175 select ARCH_HAS_SETUP_DMA_OPS 1176 select DMA_NONCOHERENT 1177 1178config DMA_NONCOHERENT 1179 bool 1180 # 1181 # MIPS allows mixing "slightly different" Cacheability and Coherency 1182 # Attribute bits. It is believed that the uncached access through 1183 # KSEG1 and the implementation specific "uncached accelerated" used 1184 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1185 # significant advantages. 1186 # 1187 select ARCH_HAS_DMA_WRITE_COMBINE 1188 select ARCH_HAS_DMA_PREP_COHERENT 1189 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1190 select ARCH_HAS_DMA_SET_UNCACHED 1191 select DMA_NONCOHERENT_MMAP 1192 select NEED_DMA_MAP_STATE 1193 1194config SYS_HAS_EARLY_PRINTK 1195 bool 1196 1197config SYS_SUPPORTS_HOTPLUG_CPU 1198 bool 1199 1200config MIPS_BONITO64 1201 bool 1202 1203config MIPS_MSC 1204 bool 1205 1206config SYNC_R4K 1207 bool 1208 1209config NO_IOPORT_MAP 1210 def_bool n 1211 1212config GENERIC_CSUM 1213 def_bool CPU_NO_LOAD_STORE_LR 1214 1215config GENERIC_ISA_DMA 1216 bool 1217 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1218 select ISA_DMA_API 1219 1220config GENERIC_ISA_DMA_SUPPORT_BROKEN 1221 bool 1222 select GENERIC_ISA_DMA 1223 1224config HAVE_PLAT_DELAY 1225 bool 1226 1227config HAVE_PLAT_FW_INIT_CMDLINE 1228 bool 1229 1230config HAVE_PLAT_MEMCPY 1231 bool 1232 1233config ISA_DMA_API 1234 bool 1235 1236config HOLES_IN_ZONE 1237 bool 1238 1239config SYS_SUPPORTS_RELOCATABLE 1240 bool 1241 help 1242 Selected if the platform supports relocating the kernel. 1243 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1244 to allow access to command line and entropy sources. 1245 1246config MIPS_CBPF_JIT 1247 def_bool y 1248 depends on BPF_JIT && HAVE_CBPF_JIT 1249 1250config MIPS_EBPF_JIT 1251 def_bool y 1252 depends on BPF_JIT && HAVE_EBPF_JIT 1253 1254 1255# 1256# Endianness selection. Sufficiently obscure so many users don't know what to 1257# answer,so we try hard to limit the available choices. Also the use of a 1258# choice statement should be more obvious to the user. 1259# 1260choice 1261 prompt "Endianness selection" 1262 help 1263 Some MIPS machines can be configured for either little or big endian 1264 byte order. These modes require different kernels and a different 1265 Linux distribution. In general there is one preferred byteorder for a 1266 particular system but some systems are just as commonly used in the 1267 one or the other endianness. 1268 1269config CPU_BIG_ENDIAN 1270 bool "Big endian" 1271 depends on SYS_SUPPORTS_BIG_ENDIAN 1272 1273config CPU_LITTLE_ENDIAN 1274 bool "Little endian" 1275 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1276 1277endchoice 1278 1279config EXPORT_UASM 1280 bool 1281 1282config SYS_SUPPORTS_APM_EMULATION 1283 bool 1284 1285config SYS_SUPPORTS_BIG_ENDIAN 1286 bool 1287 1288config SYS_SUPPORTS_LITTLE_ENDIAN 1289 bool 1290 1291config MIPS_HUGE_TLB_SUPPORT 1292 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1293 1294config IRQ_MSP_SLP 1295 bool 1296 1297config IRQ_MSP_CIC 1298 bool 1299 1300config IRQ_TXX9 1301 bool 1302 1303config IRQ_GT641XX 1304 bool 1305 1306config PCI_GT64XXX_PCI0 1307 bool 1308 1309config PCI_XTALK_BRIDGE 1310 bool 1311 1312config NO_EXCEPT_FILL 1313 bool 1314 1315config MIPS_SPRAM 1316 bool 1317 1318config SWAP_IO_SPACE 1319 bool 1320 1321config SGI_HAS_INDYDOG 1322 bool 1323 1324config SGI_HAS_HAL2 1325 bool 1326 1327config SGI_HAS_SEEQ 1328 bool 1329 1330config SGI_HAS_WD93 1331 bool 1332 1333config SGI_HAS_ZILOG 1334 bool 1335 1336config SGI_HAS_I8042 1337 bool 1338 1339config DEFAULT_SGI_PARTITION 1340 bool 1341 1342config FW_ARC32 1343 bool 1344 1345config FW_SNIPROM 1346 bool 1347 1348config BOOT_ELF32 1349 bool 1350 1351config MIPS_L1_CACHE_SHIFT_4 1352 bool 1353 1354config MIPS_L1_CACHE_SHIFT_5 1355 bool 1356 1357config MIPS_L1_CACHE_SHIFT_6 1358 bool 1359 1360config MIPS_L1_CACHE_SHIFT_7 1361 bool 1362 1363config MIPS_L1_CACHE_SHIFT 1364 int 1365 default "7" if MIPS_L1_CACHE_SHIFT_7 1366 default "6" if MIPS_L1_CACHE_SHIFT_6 1367 default "5" if MIPS_L1_CACHE_SHIFT_5 1368 default "4" if MIPS_L1_CACHE_SHIFT_4 1369 default "5" 1370 1371config ARC_CMDLINE_ONLY 1372 bool 1373 1374config ARC_CONSOLE 1375 bool "ARC console support" 1376 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1377 1378config ARC_MEMORY 1379 bool 1380 1381config ARC_PROMLIB 1382 bool 1383 1384config FW_ARC64 1385 bool 1386 1387config BOOT_ELF64 1388 bool 1389 1390menu "CPU selection" 1391 1392choice 1393 prompt "CPU type" 1394 default CPU_R4X00 1395 1396config CPU_LOONGSON64 1397 bool "Loongson 64-bit CPU" 1398 depends on SYS_HAS_CPU_LOONGSON64 1399 select ARCH_HAS_PHYS_TO_DMA 1400 select CPU_MIPSR2 1401 select CPU_HAS_PREFETCH 1402 select CPU_SUPPORTS_64BIT_KERNEL 1403 select CPU_SUPPORTS_HIGHMEM 1404 select CPU_SUPPORTS_HUGEPAGES 1405 select CPU_SUPPORTS_MSA 1406 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1407 select CPU_MIPSR2_IRQ_VI 1408 select WEAK_ORDERING 1409 select WEAK_REORDERING_BEYOND_LLSC 1410 select MIPS_ASID_BITS_VARIABLE 1411 select MIPS_PGD_C0_CONTEXT 1412 select MIPS_L1_CACHE_SHIFT_6 1413 select GPIOLIB 1414 select SWIOTLB 1415 select HAVE_KVM 1416 help 1417 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1418 cores implements the MIPS64R2 instruction set with many extensions, 1419 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1420 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1421 Loongson-2E/2F is not covered here and will be removed in future. 1422 1423config LOONGSON3_ENHANCEMENT 1424 bool "New Loongson-3 CPU Enhancements" 1425 default n 1426 depends on CPU_LOONGSON64 1427 help 1428 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1429 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1430 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1431 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1432 Fast TLB refill support, etc. 1433 1434 This option enable those enhancements which are not probed at run 1435 time. If you want a generic kernel to run on all Loongson 3 machines, 1436 please say 'N' here. If you want a high-performance kernel to run on 1437 new Loongson-3 machines only, please say 'Y' here. 1438 1439config CPU_LOONGSON3_WORKAROUNDS 1440 bool "Old Loongson-3 LLSC Workarounds" 1441 default y if SMP 1442 depends on CPU_LOONGSON64 1443 help 1444 Loongson-3 processors have the llsc issues which require workarounds. 1445 Without workarounds the system may hang unexpectedly. 1446 1447 Newer Loongson-3 will fix these issues and no workarounds are needed. 1448 The workarounds have no significant side effect on them but may 1449 decrease the performance of the system so this option should be 1450 disabled unless the kernel is intended to be run on old systems. 1451 1452 If unsure, please say Y. 1453 1454config CPU_LOONGSON3_CPUCFG_EMULATION 1455 bool "Emulate the CPUCFG instruction on older Loongson cores" 1456 default y 1457 depends on CPU_LOONGSON64 1458 help 1459 Loongson-3A R4 and newer have the CPUCFG instruction available for 1460 userland to query CPU capabilities, much like CPUID on x86. This 1461 option provides emulation of the instruction on older Loongson 1462 cores, back to Loongson-3A1000. 1463 1464 If unsure, please say Y. 1465 1466config CPU_LOONGSON2E 1467 bool "Loongson 2E" 1468 depends on SYS_HAS_CPU_LOONGSON2E 1469 select CPU_LOONGSON2EF 1470 help 1471 The Loongson 2E processor implements the MIPS III instruction set 1472 with many extensions. 1473 1474 It has an internal FPGA northbridge, which is compatible to 1475 bonito64. 1476 1477config CPU_LOONGSON2F 1478 bool "Loongson 2F" 1479 depends on SYS_HAS_CPU_LOONGSON2F 1480 select CPU_LOONGSON2EF 1481 select GPIOLIB 1482 help 1483 The Loongson 2F processor implements the MIPS III instruction set 1484 with many extensions. 1485 1486 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1487 have a similar programming interface with FPGA northbridge used in 1488 Loongson2E. 1489 1490config CPU_LOONGSON1B 1491 bool "Loongson 1B" 1492 depends on SYS_HAS_CPU_LOONGSON1B 1493 select CPU_LOONGSON32 1494 select LEDS_GPIO_REGISTER 1495 help 1496 The Loongson 1B 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_LOONGSON1C 1501 bool "Loongson 1C" 1502 depends on SYS_HAS_CPU_LOONGSON1C 1503 select CPU_LOONGSON32 1504 select LEDS_GPIO_REGISTER 1505 help 1506 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1507 Release 1 instruction set and part of the MIPS32 Release 2 1508 instruction set. 1509 1510config CPU_MIPS32_R1 1511 bool "MIPS32 Release 1" 1512 depends on SYS_HAS_CPU_MIPS32_R1 1513 select CPU_HAS_PREFETCH 1514 select CPU_SUPPORTS_32BIT_KERNEL 1515 select CPU_SUPPORTS_HIGHMEM 1516 help 1517 Choose this option to build a kernel for release 1 or later of the 1518 MIPS32 architecture. Most modern embedded systems with a 32-bit 1519 MIPS processor are based on a MIPS32 processor. If you know the 1520 specific type of processor in your system, choose those that one 1521 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1522 Release 2 of the MIPS32 architecture is available since several 1523 years so chances are you even have a MIPS32 Release 2 processor 1524 in which case you should choose CPU_MIPS32_R2 instead for better 1525 performance. 1526 1527config CPU_MIPS32_R2 1528 bool "MIPS32 Release 2" 1529 depends on SYS_HAS_CPU_MIPS32_R2 1530 select CPU_HAS_PREFETCH 1531 select CPU_SUPPORTS_32BIT_KERNEL 1532 select CPU_SUPPORTS_HIGHMEM 1533 select CPU_SUPPORTS_MSA 1534 select HAVE_KVM 1535 help 1536 Choose this option to build a kernel for release 2 or later of the 1537 MIPS32 architecture. Most modern embedded systems with a 32-bit 1538 MIPS processor are based on a MIPS32 processor. If you know the 1539 specific type of processor in your system, choose those that one 1540 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1541 1542config CPU_MIPS32_R5 1543 bool "MIPS32 Release 5" 1544 depends on SYS_HAS_CPU_MIPS32_R5 1545 select CPU_HAS_PREFETCH 1546 select CPU_SUPPORTS_32BIT_KERNEL 1547 select CPU_SUPPORTS_HIGHMEM 1548 select CPU_SUPPORTS_MSA 1549 select HAVE_KVM 1550 select MIPS_O32_FP64_SUPPORT 1551 help 1552 Choose this option to build a kernel for release 5 or later of the 1553 MIPS32 architecture. New MIPS processors, starting with the Warrior 1554 family, are based on a MIPS32r5 processor. If you own an older 1555 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1556 1557config CPU_MIPS32_R6 1558 bool "MIPS32 Release 6" 1559 depends on SYS_HAS_CPU_MIPS32_R6 1560 select CPU_HAS_PREFETCH 1561 select CPU_NO_LOAD_STORE_LR 1562 select CPU_SUPPORTS_32BIT_KERNEL 1563 select CPU_SUPPORTS_HIGHMEM 1564 select CPU_SUPPORTS_MSA 1565 select HAVE_KVM 1566 select MIPS_O32_FP64_SUPPORT 1567 help 1568 Choose this option to build a kernel for release 6 or later of the 1569 MIPS32 architecture. New MIPS processors, starting with the Warrior 1570 family, are based on a MIPS32r6 processor. If you own an older 1571 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1572 1573config CPU_MIPS64_R1 1574 bool "MIPS64 Release 1" 1575 depends on SYS_HAS_CPU_MIPS64_R1 1576 select CPU_HAS_PREFETCH 1577 select CPU_SUPPORTS_32BIT_KERNEL 1578 select CPU_SUPPORTS_64BIT_KERNEL 1579 select CPU_SUPPORTS_HIGHMEM 1580 select CPU_SUPPORTS_HUGEPAGES 1581 help 1582 Choose this option to build a kernel for release 1 or later of the 1583 MIPS64 architecture. Many modern embedded systems with a 64-bit 1584 MIPS processor are based on a MIPS64 processor. If you know the 1585 specific type of processor in your system, choose those that one 1586 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1587 Release 2 of the MIPS64 architecture is available since several 1588 years so chances are you even have a MIPS64 Release 2 processor 1589 in which case you should choose CPU_MIPS64_R2 instead for better 1590 performance. 1591 1592config CPU_MIPS64_R2 1593 bool "MIPS64 Release 2" 1594 depends on SYS_HAS_CPU_MIPS64_R2 1595 select CPU_HAS_PREFETCH 1596 select CPU_SUPPORTS_32BIT_KERNEL 1597 select CPU_SUPPORTS_64BIT_KERNEL 1598 select CPU_SUPPORTS_HIGHMEM 1599 select CPU_SUPPORTS_HUGEPAGES 1600 select CPU_SUPPORTS_MSA 1601 select HAVE_KVM 1602 help 1603 Choose this option to build a kernel for release 2 or later of the 1604 MIPS64 architecture. Many modern embedded systems with a 64-bit 1605 MIPS processor are based on a MIPS64 processor. If you know the 1606 specific type of processor in your system, choose those that one 1607 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1608 1609config CPU_MIPS64_R5 1610 bool "MIPS64 Release 5" 1611 depends on SYS_HAS_CPU_MIPS64_R5 1612 select CPU_HAS_PREFETCH 1613 select CPU_SUPPORTS_32BIT_KERNEL 1614 select CPU_SUPPORTS_64BIT_KERNEL 1615 select CPU_SUPPORTS_HIGHMEM 1616 select CPU_SUPPORTS_HUGEPAGES 1617 select CPU_SUPPORTS_MSA 1618 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1619 select HAVE_KVM 1620 help 1621 Choose this option to build a kernel for release 5 or later of the 1622 MIPS64 architecture. This is a intermediate MIPS architecture 1623 release partly implementing release 6 features. Though there is no 1624 any hardware known to be based on this release. 1625 1626config CPU_MIPS64_R6 1627 bool "MIPS64 Release 6" 1628 depends on SYS_HAS_CPU_MIPS64_R6 1629 select CPU_HAS_PREFETCH 1630 select CPU_NO_LOAD_STORE_LR 1631 select CPU_SUPPORTS_32BIT_KERNEL 1632 select CPU_SUPPORTS_64BIT_KERNEL 1633 select CPU_SUPPORTS_HIGHMEM 1634 select CPU_SUPPORTS_HUGEPAGES 1635 select CPU_SUPPORTS_MSA 1636 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1637 select HAVE_KVM 1638 help 1639 Choose this option to build a kernel for release 6 or later of the 1640 MIPS64 architecture. New MIPS processors, starting with the Warrior 1641 family, are based on a MIPS64r6 processor. If you own an older 1642 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1643 1644config CPU_P5600 1645 bool "MIPS Warrior P5600" 1646 depends on SYS_HAS_CPU_P5600 1647 select CPU_HAS_PREFETCH 1648 select CPU_SUPPORTS_32BIT_KERNEL 1649 select CPU_SUPPORTS_HIGHMEM 1650 select CPU_SUPPORTS_MSA 1651 select CPU_SUPPORTS_CPUFREQ 1652 select CPU_MIPSR2_IRQ_VI 1653 select CPU_MIPSR2_IRQ_EI 1654 select HAVE_KVM 1655 select MIPS_O32_FP64_SUPPORT 1656 help 1657 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1658 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1659 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1660 level features like up to six P5600 calculation cores, CM2 with L2 1661 cache, IOCU/IOMMU (though might be unused depending on the system- 1662 specific IP core configuration), GIC, CPC, virtualisation module, 1663 eJTAG and PDtrace. 1664 1665config CPU_R3000 1666 bool "R3000" 1667 depends on SYS_HAS_CPU_R3000 1668 select CPU_HAS_WB 1669 select CPU_R3K_TLB 1670 select CPU_SUPPORTS_32BIT_KERNEL 1671 select CPU_SUPPORTS_HIGHMEM 1672 help 1673 Please make sure to pick the right CPU type. Linux/MIPS is not 1674 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1675 *not* work on R4000 machines and vice versa. However, since most 1676 of the supported machines have an R4000 (or similar) CPU, R4x00 1677 might be a safe bet. If the resulting kernel does not work, 1678 try to recompile with R3000. 1679 1680config CPU_TX39XX 1681 bool "R39XX" 1682 depends on SYS_HAS_CPU_TX39XX 1683 select CPU_SUPPORTS_32BIT_KERNEL 1684 select CPU_R3K_TLB 1685 1686config CPU_VR41XX 1687 bool "R41xx" 1688 depends on SYS_HAS_CPU_VR41XX 1689 select CPU_SUPPORTS_32BIT_KERNEL 1690 select CPU_SUPPORTS_64BIT_KERNEL 1691 help 1692 The options selects support for the NEC VR4100 series of processors. 1693 Only choose this option if you have one of these processors as a 1694 kernel built with this option will not run on any other type of 1695 processor or vice versa. 1696 1697config CPU_R4300 1698 bool "R4300" 1699 depends on SYS_HAS_CPU_R4300 1700 select CPU_SUPPORTS_32BIT_KERNEL 1701 select CPU_SUPPORTS_64BIT_KERNEL 1702 select CPU_HAS_LOAD_STORE_LR 1703 help 1704 MIPS Technologies R4300-series processors. 1705 1706config CPU_R4X00 1707 bool "R4x00" 1708 depends on SYS_HAS_CPU_R4X00 1709 select CPU_SUPPORTS_32BIT_KERNEL 1710 select CPU_SUPPORTS_64BIT_KERNEL 1711 select CPU_SUPPORTS_HUGEPAGES 1712 help 1713 MIPS Technologies R4000-series processors other than 4300, including 1714 the R4000, R4400, R4600, and 4700. 1715 1716config CPU_TX49XX 1717 bool "R49XX" 1718 depends on SYS_HAS_CPU_TX49XX 1719 select CPU_HAS_PREFETCH 1720 select CPU_SUPPORTS_32BIT_KERNEL 1721 select CPU_SUPPORTS_64BIT_KERNEL 1722 select CPU_SUPPORTS_HUGEPAGES 1723 1724config CPU_R5000 1725 bool "R5000" 1726 depends on SYS_HAS_CPU_R5000 1727 select CPU_SUPPORTS_32BIT_KERNEL 1728 select CPU_SUPPORTS_64BIT_KERNEL 1729 select CPU_SUPPORTS_HUGEPAGES 1730 help 1731 MIPS Technologies R5000-series processors other than the Nevada. 1732 1733config CPU_R5500 1734 bool "R5500" 1735 depends on SYS_HAS_CPU_R5500 1736 select CPU_SUPPORTS_32BIT_KERNEL 1737 select CPU_SUPPORTS_64BIT_KERNEL 1738 select CPU_SUPPORTS_HUGEPAGES 1739 help 1740 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1741 instruction set. 1742 1743config CPU_NEVADA 1744 bool "RM52xx" 1745 depends on SYS_HAS_CPU_NEVADA 1746 select CPU_SUPPORTS_32BIT_KERNEL 1747 select CPU_SUPPORTS_64BIT_KERNEL 1748 select CPU_SUPPORTS_HUGEPAGES 1749 help 1750 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1751 1752config CPU_R10000 1753 bool "R10000" 1754 depends on SYS_HAS_CPU_R10000 1755 select CPU_HAS_PREFETCH 1756 select CPU_SUPPORTS_32BIT_KERNEL 1757 select CPU_SUPPORTS_64BIT_KERNEL 1758 select CPU_SUPPORTS_HIGHMEM 1759 select CPU_SUPPORTS_HUGEPAGES 1760 help 1761 MIPS Technologies R10000-series processors. 1762 1763config CPU_RM7000 1764 bool "RM7000" 1765 depends on SYS_HAS_CPU_RM7000 1766 select CPU_HAS_PREFETCH 1767 select CPU_SUPPORTS_32BIT_KERNEL 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select CPU_SUPPORTS_HIGHMEM 1770 select CPU_SUPPORTS_HUGEPAGES 1771 1772config CPU_SB1 1773 bool "SB1" 1774 depends on SYS_HAS_CPU_SB1 1775 select CPU_SUPPORTS_32BIT_KERNEL 1776 select CPU_SUPPORTS_64BIT_KERNEL 1777 select CPU_SUPPORTS_HIGHMEM 1778 select CPU_SUPPORTS_HUGEPAGES 1779 select WEAK_ORDERING 1780 1781config CPU_CAVIUM_OCTEON 1782 bool "Cavium Octeon processor" 1783 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1784 select CPU_HAS_PREFETCH 1785 select CPU_SUPPORTS_64BIT_KERNEL 1786 select WEAK_ORDERING 1787 select CPU_SUPPORTS_HIGHMEM 1788 select CPU_SUPPORTS_HUGEPAGES 1789 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1790 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1791 select MIPS_L1_CACHE_SHIFT_7 1792 select HAVE_KVM 1793 help 1794 The Cavium Octeon processor is a highly integrated chip containing 1795 many ethernet hardware widgets for networking tasks. The processor 1796 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1797 Full details can be found at http://www.caviumnetworks.com. 1798 1799config CPU_BMIPS 1800 bool "Broadcom BMIPS" 1801 depends on SYS_HAS_CPU_BMIPS 1802 select CPU_MIPS32 1803 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1804 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1805 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1806 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1807 select CPU_SUPPORTS_32BIT_KERNEL 1808 select DMA_NONCOHERENT 1809 select IRQ_MIPS_CPU 1810 select SWAP_IO_SPACE 1811 select WEAK_ORDERING 1812 select CPU_SUPPORTS_HIGHMEM 1813 select CPU_HAS_PREFETCH 1814 select CPU_SUPPORTS_CPUFREQ 1815 select MIPS_EXTERNAL_TIMER 1816 help 1817 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1818 1819config CPU_XLR 1820 bool "Netlogic XLR SoC" 1821 depends on SYS_HAS_CPU_XLR 1822 select CPU_SUPPORTS_32BIT_KERNEL 1823 select CPU_SUPPORTS_64BIT_KERNEL 1824 select CPU_SUPPORTS_HIGHMEM 1825 select CPU_SUPPORTS_HUGEPAGES 1826 select WEAK_ORDERING 1827 select WEAK_REORDERING_BEYOND_LLSC 1828 help 1829 Netlogic Microsystems XLR/XLS processors. 1830 1831config CPU_XLP 1832 bool "Netlogic XLP SoC" 1833 depends on SYS_HAS_CPU_XLP 1834 select CPU_SUPPORTS_32BIT_KERNEL 1835 select CPU_SUPPORTS_64BIT_KERNEL 1836 select CPU_SUPPORTS_HIGHMEM 1837 select WEAK_ORDERING 1838 select WEAK_REORDERING_BEYOND_LLSC 1839 select CPU_HAS_PREFETCH 1840 select CPU_MIPSR2 1841 select CPU_SUPPORTS_HUGEPAGES 1842 select MIPS_ASID_BITS_VARIABLE 1843 help 1844 Netlogic Microsystems XLP processors. 1845endchoice 1846 1847config CPU_MIPS32_3_5_FEATURES 1848 bool "MIPS32 Release 3.5 Features" 1849 depends on SYS_HAS_CPU_MIPS32_R3_5 1850 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1851 CPU_P5600 1852 help 1853 Choose this option to build a kernel for release 2 or later of the 1854 MIPS32 architecture including features from the 3.5 release such as 1855 support for Enhanced Virtual Addressing (EVA). 1856 1857config CPU_MIPS32_3_5_EVA 1858 bool "Enhanced Virtual Addressing (EVA)" 1859 depends on CPU_MIPS32_3_5_FEATURES 1860 select EVA 1861 default y 1862 help 1863 Choose this option if you want to enable the Enhanced Virtual 1864 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1865 One of its primary benefits is an increase in the maximum size 1866 of lowmem (up to 3GB). If unsure, say 'N' here. 1867 1868config CPU_MIPS32_R5_FEATURES 1869 bool "MIPS32 Release 5 Features" 1870 depends on SYS_HAS_CPU_MIPS32_R5 1871 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1872 help 1873 Choose this option to build a kernel for release 2 or later of the 1874 MIPS32 architecture including features from release 5 such as 1875 support for Extended Physical Addressing (XPA). 1876 1877config CPU_MIPS32_R5_XPA 1878 bool "Extended Physical Addressing (XPA)" 1879 depends on CPU_MIPS32_R5_FEATURES 1880 depends on !EVA 1881 depends on !PAGE_SIZE_4KB 1882 depends on SYS_SUPPORTS_HIGHMEM 1883 select XPA 1884 select HIGHMEM 1885 select PHYS_ADDR_T_64BIT 1886 default n 1887 help 1888 Choose this option if you want to enable the Extended Physical 1889 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1890 benefit is to increase physical addressing equal to or greater 1891 than 40 bits. Note that this has the side effect of turning on 1892 64-bit addressing which in turn makes the PTEs 64-bit in size. 1893 If unsure, say 'N' here. 1894 1895if CPU_LOONGSON2F 1896config CPU_NOP_WORKAROUNDS 1897 bool 1898 1899config CPU_JUMP_WORKAROUNDS 1900 bool 1901 1902config CPU_LOONGSON2F_WORKAROUNDS 1903 bool "Loongson 2F Workarounds" 1904 default y 1905 select CPU_NOP_WORKAROUNDS 1906 select CPU_JUMP_WORKAROUNDS 1907 help 1908 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1909 require workarounds. Without workarounds the system may hang 1910 unexpectedly. For more information please refer to the gas 1911 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1912 1913 Loongson 2F03 and later have fixed these issues and no workarounds 1914 are needed. The workarounds have no significant side effect on them 1915 but may decrease the performance of the system so this option should 1916 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1917 systems. 1918 1919 If unsure, please say Y. 1920endif # CPU_LOONGSON2F 1921 1922config SYS_SUPPORTS_ZBOOT 1923 bool 1924 select HAVE_KERNEL_GZIP 1925 select HAVE_KERNEL_BZIP2 1926 select HAVE_KERNEL_LZ4 1927 select HAVE_KERNEL_LZMA 1928 select HAVE_KERNEL_LZO 1929 select HAVE_KERNEL_XZ 1930 select HAVE_KERNEL_ZSTD 1931 1932config SYS_SUPPORTS_ZBOOT_UART16550 1933 bool 1934 select SYS_SUPPORTS_ZBOOT 1935 1936config SYS_SUPPORTS_ZBOOT_UART_PROM 1937 bool 1938 select SYS_SUPPORTS_ZBOOT 1939 1940config CPU_LOONGSON2EF 1941 bool 1942 select CPU_SUPPORTS_32BIT_KERNEL 1943 select CPU_SUPPORTS_64BIT_KERNEL 1944 select CPU_SUPPORTS_HIGHMEM 1945 select CPU_SUPPORTS_HUGEPAGES 1946 select ARCH_HAS_PHYS_TO_DMA 1947 1948config CPU_LOONGSON32 1949 bool 1950 select CPU_MIPS32 1951 select CPU_MIPSR2 1952 select CPU_HAS_PREFETCH 1953 select CPU_SUPPORTS_32BIT_KERNEL 1954 select CPU_SUPPORTS_HIGHMEM 1955 select CPU_SUPPORTS_CPUFREQ 1956 1957config CPU_BMIPS32_3300 1958 select SMP_UP if SMP 1959 bool 1960 1961config CPU_BMIPS4350 1962 bool 1963 select SYS_SUPPORTS_SMP 1964 select SYS_SUPPORTS_HOTPLUG_CPU 1965 1966config CPU_BMIPS4380 1967 bool 1968 select MIPS_L1_CACHE_SHIFT_6 1969 select SYS_SUPPORTS_SMP 1970 select SYS_SUPPORTS_HOTPLUG_CPU 1971 select CPU_HAS_RIXI 1972 1973config CPU_BMIPS5000 1974 bool 1975 select MIPS_CPU_SCACHE 1976 select MIPS_L1_CACHE_SHIFT_7 1977 select SYS_SUPPORTS_SMP 1978 select SYS_SUPPORTS_HOTPLUG_CPU 1979 select CPU_HAS_RIXI 1980 1981config SYS_HAS_CPU_LOONGSON64 1982 bool 1983 select CPU_SUPPORTS_CPUFREQ 1984 select CPU_HAS_RIXI 1985 1986config SYS_HAS_CPU_LOONGSON2E 1987 bool 1988 1989config SYS_HAS_CPU_LOONGSON2F 1990 bool 1991 select CPU_SUPPORTS_CPUFREQ 1992 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1993 1994config SYS_HAS_CPU_LOONGSON1B 1995 bool 1996 1997config SYS_HAS_CPU_LOONGSON1C 1998 bool 1999 2000config SYS_HAS_CPU_MIPS32_R1 2001 bool 2002 2003config SYS_HAS_CPU_MIPS32_R2 2004 bool 2005 2006config SYS_HAS_CPU_MIPS32_R3_5 2007 bool 2008 2009config SYS_HAS_CPU_MIPS32_R5 2010 bool 2011 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2012 2013config SYS_HAS_CPU_MIPS32_R6 2014 bool 2015 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2016 2017config SYS_HAS_CPU_MIPS64_R1 2018 bool 2019 2020config SYS_HAS_CPU_MIPS64_R2 2021 bool 2022 2023config SYS_HAS_CPU_MIPS64_R6 2024 bool 2025 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2026 2027config SYS_HAS_CPU_P5600 2028 bool 2029 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2030 2031config SYS_HAS_CPU_R3000 2032 bool 2033 2034config SYS_HAS_CPU_TX39XX 2035 bool 2036 2037config SYS_HAS_CPU_VR41XX 2038 bool 2039 2040config SYS_HAS_CPU_R4300 2041 bool 2042 2043config SYS_HAS_CPU_R4X00 2044 bool 2045 2046config SYS_HAS_CPU_TX49XX 2047 bool 2048 2049config SYS_HAS_CPU_R5000 2050 bool 2051 2052config SYS_HAS_CPU_R5500 2053 bool 2054 2055config SYS_HAS_CPU_NEVADA 2056 bool 2057 2058config SYS_HAS_CPU_R10000 2059 bool 2060 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2061 2062config SYS_HAS_CPU_RM7000 2063 bool 2064 2065config SYS_HAS_CPU_SB1 2066 bool 2067 2068config SYS_HAS_CPU_CAVIUM_OCTEON 2069 bool 2070 2071config SYS_HAS_CPU_BMIPS 2072 bool 2073 2074config SYS_HAS_CPU_BMIPS32_3300 2075 bool 2076 select SYS_HAS_CPU_BMIPS 2077 2078config SYS_HAS_CPU_BMIPS4350 2079 bool 2080 select SYS_HAS_CPU_BMIPS 2081 2082config SYS_HAS_CPU_BMIPS4380 2083 bool 2084 select SYS_HAS_CPU_BMIPS 2085 2086config SYS_HAS_CPU_BMIPS5000 2087 bool 2088 select SYS_HAS_CPU_BMIPS 2089 select ARCH_HAS_SYNC_DMA_FOR_CPU 2090 2091config SYS_HAS_CPU_XLR 2092 bool 2093 2094config SYS_HAS_CPU_XLP 2095 bool 2096 2097# 2098# CPU may reorder R->R, R->W, W->R, W->W 2099# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2100# 2101config WEAK_ORDERING 2102 bool 2103 2104# 2105# CPU may reorder reads and writes beyond LL/SC 2106# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2107# 2108config WEAK_REORDERING_BEYOND_LLSC 2109 bool 2110endmenu 2111 2112# 2113# These two indicate any level of the MIPS32 and MIPS64 architecture 2114# 2115config CPU_MIPS32 2116 bool 2117 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2118 CPU_MIPS32_R6 || CPU_P5600 2119 2120config CPU_MIPS64 2121 bool 2122 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2123 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON 2124 2125# 2126# These indicate the revision of the architecture 2127# 2128config CPU_MIPSR1 2129 bool 2130 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2131 2132config CPU_MIPSR2 2133 bool 2134 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2135 select CPU_HAS_RIXI 2136 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2137 select MIPS_SPRAM 2138 2139config CPU_MIPSR5 2140 bool 2141 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2142 select CPU_HAS_RIXI 2143 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2144 select MIPS_SPRAM 2145 2146config CPU_MIPSR6 2147 bool 2148 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2149 select CPU_HAS_RIXI 2150 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2151 select HAVE_ARCH_BITREVERSE 2152 select MIPS_ASID_BITS_VARIABLE 2153 select MIPS_CRC_SUPPORT 2154 select MIPS_SPRAM 2155 2156config TARGET_ISA_REV 2157 int 2158 default 1 if CPU_MIPSR1 2159 default 2 if CPU_MIPSR2 2160 default 5 if CPU_MIPSR5 2161 default 6 if CPU_MIPSR6 2162 default 0 2163 help 2164 Reflects the ISA revision being targeted by the kernel build. This 2165 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2166 2167config EVA 2168 bool 2169 2170config XPA 2171 bool 2172 2173config SYS_SUPPORTS_32BIT_KERNEL 2174 bool 2175config SYS_SUPPORTS_64BIT_KERNEL 2176 bool 2177config CPU_SUPPORTS_32BIT_KERNEL 2178 bool 2179config CPU_SUPPORTS_64BIT_KERNEL 2180 bool 2181config CPU_SUPPORTS_CPUFREQ 2182 bool 2183config CPU_SUPPORTS_ADDRWINCFG 2184 bool 2185config CPU_SUPPORTS_HUGEPAGES 2186 bool 2187 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2188config MIPS_PGD_C0_CONTEXT 2189 bool 2190 depends on 64BIT 2191 default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2192 2193# 2194# Set to y for ptrace access to watch registers. 2195# 2196config HARDWARE_WATCHPOINTS 2197 bool 2198 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2199 2200menu "Kernel type" 2201 2202choice 2203 prompt "Kernel code model" 2204 help 2205 You should only select this option if you have a workload that 2206 actually benefits from 64-bit processing or if your machine has 2207 large memory. You will only be presented a single option in this 2208 menu if your system does not support both 32-bit and 64-bit kernels. 2209 2210config 32BIT 2211 bool "32-bit kernel" 2212 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2213 select TRAD_SIGNALS 2214 help 2215 Select this option if you want to build a 32-bit kernel. 2216 2217config 64BIT 2218 bool "64-bit kernel" 2219 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2220 help 2221 Select this option if you want to build a 64-bit kernel. 2222 2223endchoice 2224 2225config MIPS_VA_BITS_48 2226 bool "48 bits virtual memory" 2227 depends on 64BIT 2228 help 2229 Support a maximum at least 48 bits of application virtual 2230 memory. Default is 40 bits or less, depending on the CPU. 2231 For page sizes 16k and above, this option results in a small 2232 memory overhead for page tables. For 4k page size, a fourth 2233 level of page tables is added which imposes both a memory 2234 overhead as well as slower TLB fault handling. 2235 2236 If unsure, say N. 2237 2238choice 2239 prompt "Kernel page size" 2240 default PAGE_SIZE_4KB 2241 2242config PAGE_SIZE_4KB 2243 bool "4kB" 2244 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2245 help 2246 This option select the standard 4kB Linux page size. On some 2247 R3000-family processors this is the only available page size. Using 2248 4kB page size will minimize memory consumption and is therefore 2249 recommended for low memory systems. 2250 2251config PAGE_SIZE_8KB 2252 bool "8kB" 2253 depends on CPU_CAVIUM_OCTEON 2254 depends on !MIPS_VA_BITS_48 2255 help 2256 Using 8kB page size will result in higher performance kernel at 2257 the price of higher memory consumption. This option is available 2258 only on cnMIPS processors. Note that you will need a suitable Linux 2259 distribution to support this. 2260 2261config PAGE_SIZE_16KB 2262 bool "16kB" 2263 depends on !CPU_R3000 && !CPU_TX39XX 2264 help 2265 Using 16kB page size will result in higher performance kernel at 2266 the price of higher memory consumption. This option is available on 2267 all non-R3000 family processors. Note that you will need a suitable 2268 Linux distribution to support this. 2269 2270config PAGE_SIZE_32KB 2271 bool "32kB" 2272 depends on CPU_CAVIUM_OCTEON 2273 depends on !MIPS_VA_BITS_48 2274 help 2275 Using 32kB page size will result in higher performance kernel at 2276 the price of higher memory consumption. This option is available 2277 only on cnMIPS cores. Note that you will need a suitable Linux 2278 distribution to support this. 2279 2280config PAGE_SIZE_64KB 2281 bool "64kB" 2282 depends on !CPU_R3000 && !CPU_TX39XX 2283 help 2284 Using 64kB page size will result in higher performance kernel at 2285 the price of higher memory consumption. This option is available on 2286 all non-R3000 family processor. Not that at the time of this 2287 writing this option is still high experimental. 2288 2289endchoice 2290 2291config FORCE_MAX_ZONEORDER 2292 int "Maximum zone order" 2293 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2294 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2295 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2296 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2297 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2298 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2299 range 0 64 2300 default "11" 2301 help 2302 The kernel memory allocator divides physically contiguous memory 2303 blocks into "zones", where each zone is a power of two number of 2304 pages. This option selects the largest power of two that the kernel 2305 keeps in the memory allocator. If you need to allocate very large 2306 blocks of physically contiguous memory, then you may need to 2307 increase this value. 2308 2309 This config option is actually maximum order plus one. For example, 2310 a value of 11 means that the largest free memory block is 2^10 pages. 2311 2312 The page size is not necessarily 4KB. Keep this in mind 2313 when choosing a value for this option. 2314 2315config BOARD_SCACHE 2316 bool 2317 2318config IP22_CPU_SCACHE 2319 bool 2320 select BOARD_SCACHE 2321 2322# 2323# Support for a MIPS32 / MIPS64 style S-caches 2324# 2325config MIPS_CPU_SCACHE 2326 bool 2327 select BOARD_SCACHE 2328 2329config R5000_CPU_SCACHE 2330 bool 2331 select BOARD_SCACHE 2332 2333config RM7000_CPU_SCACHE 2334 bool 2335 select BOARD_SCACHE 2336 2337config SIBYTE_DMA_PAGEOPS 2338 bool "Use DMA to clear/copy pages" 2339 depends on CPU_SB1 2340 help 2341 Instead of using the CPU to zero and copy pages, use a Data Mover 2342 channel. These DMA channels are otherwise unused by the standard 2343 SiByte Linux port. Seems to give a small performance benefit. 2344 2345config CPU_HAS_PREFETCH 2346 bool 2347 2348config CPU_GENERIC_DUMP_TLB 2349 bool 2350 default y if !(CPU_R3000 || CPU_TX39XX) 2351 2352config MIPS_FP_SUPPORT 2353 bool "Floating Point support" if EXPERT 2354 default y 2355 help 2356 Select y to include support for floating point in the kernel 2357 including initialization of FPU hardware, FP context save & restore 2358 and emulation of an FPU where necessary. Without this support any 2359 userland program attempting to use floating point instructions will 2360 receive a SIGILL. 2361 2362 If you know that your userland will not attempt to use floating point 2363 instructions then you can say n here to shrink the kernel a little. 2364 2365 If unsure, say y. 2366 2367config CPU_R2300_FPU 2368 bool 2369 depends on MIPS_FP_SUPPORT 2370 default y if CPU_R3000 || CPU_TX39XX 2371 2372config CPU_R3K_TLB 2373 bool 2374 2375config CPU_R4K_FPU 2376 bool 2377 depends on MIPS_FP_SUPPORT 2378 default y if !CPU_R2300_FPU 2379 2380config CPU_R4K_CACHE_TLB 2381 bool 2382 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2383 2384config MIPS_MT_SMP 2385 bool "MIPS MT SMP support (1 TC on each available VPE)" 2386 default y 2387 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2388 select CPU_MIPSR2_IRQ_VI 2389 select CPU_MIPSR2_IRQ_EI 2390 select SYNC_R4K 2391 select MIPS_MT 2392 select SMP 2393 select SMP_UP 2394 select SYS_SUPPORTS_SMP 2395 select SYS_SUPPORTS_SCHED_SMT 2396 select MIPS_PERF_SHARED_TC_COUNTERS 2397 help 2398 This is a kernel model which is known as SMVP. This is supported 2399 on cores with the MT ASE and uses the available VPEs to implement 2400 virtual processors which supports SMP. This is equivalent to the 2401 Intel Hyperthreading feature. For further information go to 2402 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2403 2404config MIPS_MT 2405 bool 2406 2407config SCHED_SMT 2408 bool "SMT (multithreading) scheduler support" 2409 depends on SYS_SUPPORTS_SCHED_SMT 2410 default n 2411 help 2412 SMT scheduler support improves the CPU scheduler's decision making 2413 when dealing with MIPS MT enabled cores at a cost of slightly 2414 increased overhead in some places. If unsure say N here. 2415 2416config SYS_SUPPORTS_SCHED_SMT 2417 bool 2418 2419config SYS_SUPPORTS_MULTITHREADING 2420 bool 2421 2422config MIPS_MT_FPAFF 2423 bool "Dynamic FPU affinity for FP-intensive threads" 2424 default y 2425 depends on MIPS_MT_SMP 2426 2427config MIPSR2_TO_R6_EMULATOR 2428 bool "MIPS R2-to-R6 emulator" 2429 depends on CPU_MIPSR6 2430 depends on MIPS_FP_SUPPORT 2431 default y 2432 help 2433 Choose this option if you want to run non-R6 MIPS userland code. 2434 Even if you say 'Y' here, the emulator will still be disabled by 2435 default. You can enable it using the 'mipsr2emu' kernel option. 2436 The only reason this is a build-time option is to save ~14K from the 2437 final kernel image. 2438 2439config SYS_SUPPORTS_VPE_LOADER 2440 bool 2441 depends on SYS_SUPPORTS_MULTITHREADING 2442 help 2443 Indicates that the platform supports the VPE loader, and provides 2444 physical_memsize. 2445 2446config MIPS_VPE_LOADER 2447 bool "VPE loader support." 2448 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2449 select CPU_MIPSR2_IRQ_VI 2450 select CPU_MIPSR2_IRQ_EI 2451 select MIPS_MT 2452 help 2453 Includes a loader for loading an elf relocatable object 2454 onto another VPE and running it. 2455 2456config MIPS_VPE_LOADER_CMP 2457 bool 2458 default "y" 2459 depends on MIPS_VPE_LOADER && MIPS_CMP 2460 2461config MIPS_VPE_LOADER_MT 2462 bool 2463 default "y" 2464 depends on MIPS_VPE_LOADER && !MIPS_CMP 2465 2466config MIPS_VPE_LOADER_TOM 2467 bool "Load VPE program into memory hidden from linux" 2468 depends on MIPS_VPE_LOADER 2469 default y 2470 help 2471 The loader can use memory that is present but has been hidden from 2472 Linux using the kernel command line option "mem=xxMB". It's up to 2473 you to ensure the amount you put in the option and the space your 2474 program requires is less or equal to the amount physically present. 2475 2476config MIPS_VPE_APSP_API 2477 bool "Enable support for AP/SP API (RTLX)" 2478 depends on MIPS_VPE_LOADER 2479 2480config MIPS_VPE_APSP_API_CMP 2481 bool 2482 default "y" 2483 depends on MIPS_VPE_APSP_API && MIPS_CMP 2484 2485config MIPS_VPE_APSP_API_MT 2486 bool 2487 default "y" 2488 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2489 2490config MIPS_CMP 2491 bool "MIPS CMP framework support (DEPRECATED)" 2492 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2493 select SMP 2494 select SYNC_R4K 2495 select SYS_SUPPORTS_SMP 2496 select WEAK_ORDERING 2497 default n 2498 help 2499 Select this if you are using a bootloader which implements the "CMP 2500 framework" protocol (ie. YAMON) and want your kernel to make use of 2501 its ability to start secondary CPUs. 2502 2503 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2504 instead of this. 2505 2506config MIPS_CPS 2507 bool "MIPS Coherent Processing System support" 2508 depends on SYS_SUPPORTS_MIPS_CPS 2509 select MIPS_CM 2510 select MIPS_CPS_PM if HOTPLUG_CPU 2511 select SMP 2512 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2513 select SYS_SUPPORTS_HOTPLUG_CPU 2514 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2515 select SYS_SUPPORTS_SMP 2516 select WEAK_ORDERING 2517 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU 2518 help 2519 Select this if you wish to run an SMP kernel across multiple cores 2520 within a MIPS Coherent Processing System. When this option is 2521 enabled the kernel will probe for other cores and boot them with 2522 no external assistance. It is safe to enable this when hardware 2523 support is unavailable. 2524 2525config MIPS_CPS_PM 2526 depends on MIPS_CPS 2527 bool 2528 2529config MIPS_CM 2530 bool 2531 select MIPS_CPC 2532 2533config MIPS_CPC 2534 bool 2535 2536config SB1_PASS_2_WORKAROUNDS 2537 bool 2538 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2539 default y 2540 2541config SB1_PASS_2_1_WORKAROUNDS 2542 bool 2543 depends on CPU_SB1 && CPU_SB1_PASS_2 2544 default y 2545 2546choice 2547 prompt "SmartMIPS or microMIPS ASE support" 2548 2549config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2550 bool "None" 2551 help 2552 Select this if you want neither microMIPS nor SmartMIPS support 2553 2554config CPU_HAS_SMARTMIPS 2555 depends on SYS_SUPPORTS_SMARTMIPS 2556 bool "SmartMIPS" 2557 help 2558 SmartMIPS is a extension of the MIPS32 architecture aimed at 2559 increased security at both hardware and software level for 2560 smartcards. Enabling this option will allow proper use of the 2561 SmartMIPS instructions by Linux applications. However a kernel with 2562 this option will not work on a MIPS core without SmartMIPS core. If 2563 you don't know you probably don't have SmartMIPS and should say N 2564 here. 2565 2566config CPU_MICROMIPS 2567 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2568 bool "microMIPS" 2569 help 2570 When this option is enabled the kernel will be built using the 2571 microMIPS ISA 2572 2573endchoice 2574 2575config CPU_HAS_MSA 2576 bool "Support for the MIPS SIMD Architecture" 2577 depends on CPU_SUPPORTS_MSA 2578 depends on MIPS_FP_SUPPORT 2579 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2580 help 2581 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2582 and a set of SIMD instructions to operate on them. When this option 2583 is enabled the kernel will support allocating & switching MSA 2584 vector register contexts. If you know that your kernel will only be 2585 running on CPUs which do not support MSA or that your userland will 2586 not be making use of it then you may wish to say N here to reduce 2587 the size & complexity of your kernel. 2588 2589 If unsure, say Y. 2590 2591config CPU_HAS_WB 2592 bool 2593 2594config XKS01 2595 bool 2596 2597config CPU_HAS_DIEI 2598 depends on !CPU_DIEI_BROKEN 2599 bool 2600 2601config CPU_DIEI_BROKEN 2602 bool 2603 2604config CPU_HAS_RIXI 2605 bool 2606 2607config CPU_NO_LOAD_STORE_LR 2608 bool 2609 help 2610 CPU lacks support for unaligned load and store instructions: 2611 LWL, LWR, SWL, SWR (Load/store word left/right). 2612 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2613 systems). 2614 2615# 2616# Vectored interrupt mode is an R2 feature 2617# 2618config CPU_MIPSR2_IRQ_VI 2619 bool 2620 2621# 2622# Extended interrupt mode is an R2 feature 2623# 2624config CPU_MIPSR2_IRQ_EI 2625 bool 2626 2627config CPU_HAS_SYNC 2628 bool 2629 depends on !CPU_R3000 2630 default y 2631 2632# 2633# CPU non-features 2634# 2635config CPU_DADDI_WORKAROUNDS 2636 bool 2637 2638config CPU_R4000_WORKAROUNDS 2639 bool 2640 select CPU_R4400_WORKAROUNDS 2641 2642config CPU_R4400_WORKAROUNDS 2643 bool 2644 2645config CPU_R4X00_BUGS64 2646 bool 2647 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2648 2649config MIPS_ASID_SHIFT 2650 int 2651 default 6 if CPU_R3000 || CPU_TX39XX 2652 default 0 2653 2654config MIPS_ASID_BITS 2655 int 2656 default 0 if MIPS_ASID_BITS_VARIABLE 2657 default 6 if CPU_R3000 || CPU_TX39XX 2658 default 8 2659 2660config MIPS_ASID_BITS_VARIABLE 2661 bool 2662 2663config MIPS_CRC_SUPPORT 2664 bool 2665 2666# R4600 erratum. Due to the lack of errata information the exact 2667# technical details aren't known. I've experimentally found that disabling 2668# interrupts during indexed I-cache flushes seems to be sufficient to deal 2669# with the issue. 2670config WAR_R4600_V1_INDEX_ICACHEOP 2671 bool 2672 2673# Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata: 2674# 2675# 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D, 2676# Hit_Invalidate_D and Create_Dirty_Excl_D should only be 2677# executed if there is no other dcache activity. If the dcache is 2678# accessed for another instruction immediately preceding when these 2679# cache instructions are executing, it is possible that the dcache 2680# tag match outputs used by these cache instructions will be 2681# incorrect. These cache instructions should be preceded by at least 2682# four instructions that are not any kind of load or store 2683# instruction. 2684# 2685# This is not allowed: lw 2686# nop 2687# nop 2688# nop 2689# cache Hit_Writeback_Invalidate_D 2690# 2691# This is allowed: lw 2692# nop 2693# nop 2694# nop 2695# nop 2696# cache Hit_Writeback_Invalidate_D 2697config WAR_R4600_V1_HIT_CACHEOP 2698 bool 2699 2700# Writeback and invalidate the primary cache dcache before DMA. 2701# 2702# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D, 2703# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only 2704# operate correctly if the internal data cache refill buffer is empty. These 2705# CACHE instructions should be separated from any potential data cache miss 2706# by a load instruction to an uncached address to empty the response buffer." 2707# (Revision 2.0 device errata from IDT available on https://www.idt.com/ 2708# in .pdf format.) 2709config WAR_R4600_V2_HIT_CACHEOP 2710 bool 2711 2712# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for 2713# the line which this instruction itself exists, the following 2714# operation is not guaranteed." 2715# 2716# Workaround: do two phase flushing for Index_Invalidate_I 2717config WAR_TX49XX_ICACHE_INDEX_INV 2718 bool 2719 2720# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra 2721# opposes it being called that) where invalid instructions in the same 2722# I-cache line worth of instructions being fetched may case spurious 2723# exceptions. 2724config WAR_ICACHE_REFILLS 2725 bool 2726 2727# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that 2728# may cause ll / sc and lld / scd sequences to execute non-atomically. 2729config WAR_R10000_LLSC 2730 bool 2731 2732# 34K core erratum: "Problems Executing the TLBR Instruction" 2733config WAR_MIPS34K_MISSED_ITLB 2734 bool 2735 2736# 2737# - Highmem only makes sense for the 32-bit kernel. 2738# - The current highmem code will only work properly on physically indexed 2739# caches such as R3000, SB1, R7000 or those that look like they're virtually 2740# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2741# moment we protect the user and offer the highmem option only on machines 2742# where it's known to be safe. This will not offer highmem on a few systems 2743# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2744# indexed CPUs but we're playing safe. 2745# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2746# know they might have memory configurations that could make use of highmem 2747# support. 2748# 2749config HIGHMEM 2750 bool "High Memory Support" 2751 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2752 select KMAP_LOCAL 2753 2754config CPU_SUPPORTS_HIGHMEM 2755 bool 2756 2757config SYS_SUPPORTS_HIGHMEM 2758 bool 2759 2760config SYS_SUPPORTS_SMARTMIPS 2761 bool 2762 2763config SYS_SUPPORTS_MICROMIPS 2764 bool 2765 2766config SYS_SUPPORTS_MIPS16 2767 bool 2768 help 2769 This option must be set if a kernel might be executed on a MIPS16- 2770 enabled CPU even if MIPS16 is not actually being used. In other 2771 words, it makes the kernel MIPS16-tolerant. 2772 2773config CPU_SUPPORTS_MSA 2774 bool 2775 2776config ARCH_FLATMEM_ENABLE 2777 def_bool y 2778 depends on !NUMA && !CPU_LOONGSON2EF 2779 2780config ARCH_SPARSEMEM_ENABLE 2781 bool 2782 select SPARSEMEM_STATIC if !SGI_IP27 2783 2784config NUMA 2785 bool "NUMA Support" 2786 depends on SYS_SUPPORTS_NUMA 2787 select SMP 2788 help 2789 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2790 Access). This option improves performance on systems with more 2791 than two nodes; on two node systems it is generally better to 2792 leave it disabled; on single node systems leave this option 2793 disabled. 2794 2795config SYS_SUPPORTS_NUMA 2796 bool 2797 2798config HAVE_SETUP_PER_CPU_AREA 2799 def_bool y 2800 depends on NUMA 2801 2802config NEED_PER_CPU_EMBED_FIRST_CHUNK 2803 def_bool y 2804 depends on NUMA 2805 2806config RELOCATABLE 2807 bool "Relocatable kernel" 2808 depends on SYS_SUPPORTS_RELOCATABLE 2809 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2810 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2811 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2812 CPU_P5600 || CAVIUM_OCTEON_SOC || \ 2813 CPU_LOONGSON64 2814 help 2815 This builds a kernel image that retains relocation information 2816 so it can be loaded someplace besides the default 1MB. 2817 The relocations make the kernel binary about 15% larger, 2818 but are discarded at runtime 2819 2820config RELOCATION_TABLE_SIZE 2821 hex "Relocation table size" 2822 depends on RELOCATABLE 2823 range 0x0 0x01000000 2824 default "0x00200000" if CPU_LOONGSON64 2825 default "0x00100000" 2826 help 2827 A table of relocation data will be appended to the kernel binary 2828 and parsed at boot to fix up the relocated kernel. 2829 2830 This option allows the amount of space reserved for the table to be 2831 adjusted, although the default of 1Mb should be ok in most cases. 2832 2833 The build will fail and a valid size suggested if this is too small. 2834 2835 If unsure, leave at the default value. 2836 2837config RANDOMIZE_BASE 2838 bool "Randomize the address of the kernel image" 2839 depends on RELOCATABLE 2840 help 2841 Randomizes the physical and virtual address at which the 2842 kernel image is loaded, as a security feature that 2843 deters exploit attempts relying on knowledge of the location 2844 of kernel internals. 2845 2846 Entropy is generated using any coprocessor 0 registers available. 2847 2848 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2849 2850 If unsure, say N. 2851 2852config RANDOMIZE_BASE_MAX_OFFSET 2853 hex "Maximum kASLR offset" if EXPERT 2854 depends on RANDOMIZE_BASE 2855 range 0x0 0x40000000 if EVA || 64BIT 2856 range 0x0 0x08000000 2857 default "0x01000000" 2858 help 2859 When kASLR is active, this provides the maximum offset that will 2860 be applied to the kernel image. It should be set according to the 2861 amount of physical RAM available in the target system minus 2862 PHYSICAL_START and must be a power of 2. 2863 2864 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2865 EVA or 64-bit. The default is 16Mb. 2866 2867config NODES_SHIFT 2868 int 2869 default "6" 2870 depends on NEED_MULTIPLE_NODES 2871 2872config HW_PERF_EVENTS 2873 bool "Enable hardware performance counter support for perf events" 2874 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2875 default y 2876 help 2877 Enable hardware performance counter support for perf events. If 2878 disabled, perf events will use software events only. 2879 2880config DMI 2881 bool "Enable DMI scanning" 2882 depends on MACH_LOONGSON64 2883 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2884 default y 2885 help 2886 Enabled scanning of DMI to identify machine quirks. Say Y 2887 here unless you have verified that your setup is not 2888 affected by entries in the DMI blacklist. Required by PNP 2889 BIOS code. 2890 2891config SMP 2892 bool "Multi-Processing support" 2893 depends on SYS_SUPPORTS_SMP 2894 help 2895 This enables support for systems with more than one CPU. If you have 2896 a system with only one CPU, say N. If you have a system with more 2897 than one CPU, say Y. 2898 2899 If you say N here, the kernel will run on uni- and multiprocessor 2900 machines, but will use only one CPU of a multiprocessor machine. If 2901 you say Y here, the kernel will run on many, but not all, 2902 uniprocessor machines. On a uniprocessor machine, the kernel 2903 will run faster if you say N here. 2904 2905 People using multiprocessor machines who say Y here should also say 2906 Y to "Enhanced Real Time Clock Support", below. 2907 2908 See also the SMP-HOWTO available at 2909 <https://www.tldp.org/docs.html#howto>. 2910 2911 If you don't know what to do here, say N. 2912 2913config HOTPLUG_CPU 2914 bool "Support for hot-pluggable CPUs" 2915 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2916 help 2917 Say Y here to allow turning CPUs off and on. CPUs can be 2918 controlled through /sys/devices/system/cpu. 2919 (Note: power management support will enable this option 2920 automatically on SMP systems. ) 2921 Say N if you want to disable CPU hotplug. 2922 2923config SMP_UP 2924 bool 2925 2926config SYS_SUPPORTS_MIPS_CMP 2927 bool 2928 2929config SYS_SUPPORTS_MIPS_CPS 2930 bool 2931 2932config SYS_SUPPORTS_SMP 2933 bool 2934 2935config NR_CPUS_DEFAULT_4 2936 bool 2937 2938config NR_CPUS_DEFAULT_8 2939 bool 2940 2941config NR_CPUS_DEFAULT_16 2942 bool 2943 2944config NR_CPUS_DEFAULT_32 2945 bool 2946 2947config NR_CPUS_DEFAULT_64 2948 bool 2949 2950config NR_CPUS 2951 int "Maximum number of CPUs (2-256)" 2952 range 2 256 2953 depends on SMP 2954 default "4" if NR_CPUS_DEFAULT_4 2955 default "8" if NR_CPUS_DEFAULT_8 2956 default "16" if NR_CPUS_DEFAULT_16 2957 default "32" if NR_CPUS_DEFAULT_32 2958 default "64" if NR_CPUS_DEFAULT_64 2959 help 2960 This allows you to specify the maximum number of CPUs which this 2961 kernel will support. The maximum supported value is 32 for 32-bit 2962 kernel and 64 for 64-bit kernels; the minimum value which makes 2963 sense is 1 for Qemu (useful only for kernel debugging purposes) 2964 and 2 for all others. 2965 2966 This is purely to save memory - each supported CPU adds 2967 approximately eight kilobytes to the kernel image. For best 2968 performance should round up your number of processors to the next 2969 power of two. 2970 2971config MIPS_PERF_SHARED_TC_COUNTERS 2972 bool 2973 2974config MIPS_NR_CPU_NR_MAP_1024 2975 bool 2976 2977config MIPS_NR_CPU_NR_MAP 2978 int 2979 depends on SMP 2980 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2981 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2982 2983# 2984# Timer Interrupt Frequency Configuration 2985# 2986 2987choice 2988 prompt "Timer frequency" 2989 default HZ_250 2990 help 2991 Allows the configuration of the timer frequency. 2992 2993 config HZ_24 2994 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2995 2996 config HZ_48 2997 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2998 2999 config HZ_100 3000 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 3001 3002 config HZ_128 3003 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 3004 3005 config HZ_250 3006 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 3007 3008 config HZ_256 3009 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 3010 3011 config HZ_1000 3012 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 3013 3014 config HZ_1024 3015 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 3016 3017endchoice 3018 3019config SYS_SUPPORTS_24HZ 3020 bool 3021 3022config SYS_SUPPORTS_48HZ 3023 bool 3024 3025config SYS_SUPPORTS_100HZ 3026 bool 3027 3028config SYS_SUPPORTS_128HZ 3029 bool 3030 3031config SYS_SUPPORTS_250HZ 3032 bool 3033 3034config SYS_SUPPORTS_256HZ 3035 bool 3036 3037config SYS_SUPPORTS_1000HZ 3038 bool 3039 3040config SYS_SUPPORTS_1024HZ 3041 bool 3042 3043config SYS_SUPPORTS_ARBIT_HZ 3044 bool 3045 default y if !SYS_SUPPORTS_24HZ && \ 3046 !SYS_SUPPORTS_48HZ && \ 3047 !SYS_SUPPORTS_100HZ && \ 3048 !SYS_SUPPORTS_128HZ && \ 3049 !SYS_SUPPORTS_250HZ && \ 3050 !SYS_SUPPORTS_256HZ && \ 3051 !SYS_SUPPORTS_1000HZ && \ 3052 !SYS_SUPPORTS_1024HZ 3053 3054config HZ 3055 int 3056 default 24 if HZ_24 3057 default 48 if HZ_48 3058 default 100 if HZ_100 3059 default 128 if HZ_128 3060 default 250 if HZ_250 3061 default 256 if HZ_256 3062 default 1000 if HZ_1000 3063 default 1024 if HZ_1024 3064 3065config SCHED_HRTICK 3066 def_bool HIGH_RES_TIMERS 3067 3068config KEXEC 3069 bool "Kexec system call" 3070 select KEXEC_CORE 3071 help 3072 kexec is a system call that implements the ability to shutdown your 3073 current kernel, and to start another kernel. It is like a reboot 3074 but it is independent of the system firmware. And like a reboot 3075 you can start any kernel with it, not just Linux. 3076 3077 The name comes from the similarity to the exec system call. 3078 3079 It is an ongoing process to be certain the hardware in a machine 3080 is properly shutdown, so do not be surprised if this code does not 3081 initially work for you. As of this writing the exact hardware 3082 interface is strongly in flux, so no good recommendation can be 3083 made. 3084 3085config CRASH_DUMP 3086 bool "Kernel crash dumps" 3087 help 3088 Generate crash dump after being started by kexec. 3089 This should be normally only set in special crash dump kernels 3090 which are loaded in the main kernel with kexec-tools into 3091 a specially reserved region and then later executed after 3092 a crash by kdump/kexec. The crash dump kernel must be compiled 3093 to a memory address not used by the main kernel or firmware using 3094 PHYSICAL_START. 3095 3096config PHYSICAL_START 3097 hex "Physical address where the kernel is loaded" 3098 default "0xffffffff84000000" 3099 depends on CRASH_DUMP 3100 help 3101 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3102 If you plan to use kernel for capturing the crash dump change 3103 this value to start of the reserved region (the "X" value as 3104 specified in the "crashkernel=YM@XM" command line boot parameter 3105 passed to the panic-ed kernel). 3106 3107config MIPS_O32_FP64_SUPPORT 3108 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3109 depends on 32BIT || MIPS32_O32 3110 help 3111 When this is enabled, the kernel will support use of 64-bit floating 3112 point registers with binaries using the O32 ABI along with the 3113 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3114 32-bit MIPS systems this support is at the cost of increasing the 3115 size and complexity of the compiled FPU emulator. Thus if you are 3116 running a MIPS32 system and know that none of your userland binaries 3117 will require 64-bit floating point, you may wish to reduce the size 3118 of your kernel & potentially improve FP emulation performance by 3119 saying N here. 3120 3121 Although binutils currently supports use of this flag the details 3122 concerning its effect upon the O32 ABI in userland are still being 3123 worked on. In order to avoid userland becoming dependent upon current 3124 behaviour before the details have been finalised, this option should 3125 be considered experimental and only enabled by those working upon 3126 said details. 3127 3128 If unsure, say N. 3129 3130config USE_OF 3131 bool 3132 select OF 3133 select OF_EARLY_FLATTREE 3134 select IRQ_DOMAIN 3135 3136config UHI_BOOT 3137 bool 3138 3139config BUILTIN_DTB 3140 bool 3141 3142choice 3143 prompt "Kernel appended dtb support" if USE_OF 3144 default MIPS_NO_APPENDED_DTB 3145 3146 config MIPS_NO_APPENDED_DTB 3147 bool "None" 3148 help 3149 Do not enable appended dtb support. 3150 3151 config MIPS_ELF_APPENDED_DTB 3152 bool "vmlinux" 3153 help 3154 With this option, the boot code will look for a device tree binary 3155 DTB) included in the vmlinux ELF section .appended_dtb. By default 3156 it is empty and the DTB can be appended using binutils command 3157 objcopy: 3158 3159 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3160 3161 This is meant as a backward compatibility convenience for those 3162 systems with a bootloader that can't be upgraded to accommodate 3163 the documented boot protocol using a device tree. 3164 3165 config MIPS_RAW_APPENDED_DTB 3166 bool "vmlinux.bin or vmlinuz.bin" 3167 help 3168 With this option, the boot code will look for a device tree binary 3169 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3170 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3171 3172 This is meant as a backward compatibility convenience for those 3173 systems with a bootloader that can't be upgraded to accommodate 3174 the documented boot protocol using a device tree. 3175 3176 Beware that there is very little in terms of protection against 3177 this option being confused by leftover garbage in memory that might 3178 look like a DTB header after a reboot if no actual DTB is appended 3179 to vmlinux.bin. Do not leave this option active in a production kernel 3180 if you don't intend to always append a DTB. 3181endchoice 3182 3183choice 3184 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3185 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3186 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3187 !CAVIUM_OCTEON_SOC 3188 default MIPS_CMDLINE_FROM_BOOTLOADER 3189 3190 config MIPS_CMDLINE_FROM_DTB 3191 depends on USE_OF 3192 bool "Dtb kernel arguments if available" 3193 3194 config MIPS_CMDLINE_DTB_EXTEND 3195 depends on USE_OF 3196 bool "Extend dtb kernel arguments with bootloader arguments" 3197 3198 config MIPS_CMDLINE_FROM_BOOTLOADER 3199 bool "Bootloader kernel arguments if available" 3200 3201 config MIPS_CMDLINE_BUILTIN_EXTEND 3202 depends on CMDLINE_BOOL 3203 bool "Extend builtin kernel arguments with bootloader arguments" 3204endchoice 3205 3206endmenu 3207 3208config LOCKDEP_SUPPORT 3209 bool 3210 default y 3211 3212config STACKTRACE_SUPPORT 3213 bool 3214 default y 3215 3216config PGTABLE_LEVELS 3217 int 3218 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3219 default 3 if 64BIT && !PAGE_SIZE_64KB 3220 default 2 3221 3222config MIPS_AUTO_PFN_OFFSET 3223 bool 3224 3225menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3226 3227config PCI_DRIVERS_GENERIC 3228 select PCI_DOMAINS_GENERIC if PCI 3229 bool 3230 3231config PCI_DRIVERS_LEGACY 3232 def_bool !PCI_DRIVERS_GENERIC 3233 select NO_GENERIC_PCI_IOPORT_MAP 3234 select PCI_DOMAINS if PCI 3235 3236# 3237# ISA support is now enabled via select. Too many systems still have the one 3238# or other ISA chip on the board that users don't know about so don't expect 3239# users to choose the right thing ... 3240# 3241config ISA 3242 bool 3243 3244config TC 3245 bool "TURBOchannel support" 3246 depends on MACH_DECSTATION 3247 help 3248 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3249 processors. TURBOchannel programming specifications are available 3250 at: 3251 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3252 and: 3253 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3254 Linux driver support status is documented at: 3255 <http://www.linux-mips.org/wiki/DECstation> 3256 3257config MMU 3258 bool 3259 default y 3260 3261config ARCH_MMAP_RND_BITS_MIN 3262 default 12 if 64BIT 3263 default 8 3264 3265config ARCH_MMAP_RND_BITS_MAX 3266 default 18 if 64BIT 3267 default 15 3268 3269config ARCH_MMAP_RND_COMPAT_BITS_MIN 3270 default 8 3271 3272config ARCH_MMAP_RND_COMPAT_BITS_MAX 3273 default 15 3274 3275config I8253 3276 bool 3277 select CLKSRC_I8253 3278 select CLKEVT_I8253 3279 select MIPS_EXTERNAL_TIMER 3280 3281config ZONE_DMA 3282 bool 3283 3284config ZONE_DMA32 3285 bool 3286 3287endmenu 3288 3289config TRAD_SIGNALS 3290 bool 3291 3292config MIPS32_COMPAT 3293 bool 3294 3295config COMPAT 3296 bool 3297 3298config SYSVIPC_COMPAT 3299 bool 3300 3301config MIPS32_O32 3302 bool "Kernel support for o32 binaries" 3303 depends on 64BIT 3304 select ARCH_WANT_OLD_COMPAT_IPC 3305 select COMPAT 3306 select MIPS32_COMPAT 3307 select SYSVIPC_COMPAT if SYSVIPC 3308 help 3309 Select this option if you want to run o32 binaries. These are pure 3310 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3311 existing binaries are in this format. 3312 3313 If unsure, say Y. 3314 3315config MIPS32_N32 3316 bool "Kernel support for n32 binaries" 3317 depends on 64BIT 3318 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3319 select COMPAT 3320 select MIPS32_COMPAT 3321 select SYSVIPC_COMPAT if SYSVIPC 3322 help 3323 Select this option if you want to run n32 binaries. These are 3324 64-bit binaries using 32-bit quantities for addressing and certain 3325 data that would normally be 64-bit. They are used in special 3326 cases. 3327 3328 If unsure, say N. 3329 3330menu "Power management options" 3331 3332config ARCH_HIBERNATION_POSSIBLE 3333 def_bool y 3334 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3335 3336config ARCH_SUSPEND_POSSIBLE 3337 def_bool y 3338 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3339 3340source "kernel/power/Kconfig" 3341 3342endmenu 3343 3344config MIPS_EXTERNAL_TIMER 3345 bool 3346 3347menu "CPU Power Management" 3348 3349if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3350source "drivers/cpufreq/Kconfig" 3351endif 3352 3353source "drivers/cpuidle/Kconfig" 3354 3355endmenu 3356 3357source "drivers/firmware/Kconfig" 3358 3359source "arch/mips/kvm/Kconfig" 3360 3361source "arch/mips/vdso/Kconfig" 3362