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_CPU_FINALIZE_INIT 8 select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000 9 select ARCH_HAS_DEBUG_VIRTUAL if !64BIT 10 select ARCH_HAS_FORTIFY_SOURCE 11 select ARCH_HAS_KCOV 12 select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA 13 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 14 select ARCH_HAS_STRNCPY_FROM_USER 15 select ARCH_HAS_STRNLEN_USER 16 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 17 select ARCH_HAS_UBSAN_SANITIZE_ALL 18 select ARCH_HAS_GCOV_PROFILE_ALL 19 select ARCH_KEEP_MEMBLOCK 20 select ARCH_USE_BUILTIN_BSWAP 21 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 22 select ARCH_USE_MEMTEST 23 select ARCH_USE_QUEUED_RWLOCKS 24 select ARCH_USE_QUEUED_SPINLOCKS 25 select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES 26 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 27 select ARCH_WANT_IPC_PARSE_VERSION 28 select ARCH_WANT_LD_ORPHAN_WARN 29 select BUILDTIME_TABLE_SORT 30 select CLONE_BACKWARDS 31 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 32 select CPU_PM if CPU_IDLE 33 select GENERIC_ATOMIC64 if !64BIT 34 select GENERIC_CMOS_UPDATE 35 select GENERIC_CPU_AUTOPROBE 36 select GENERIC_GETTIMEOFDAY 37 select GENERIC_IOMAP 38 select GENERIC_IRQ_PROBE 39 select GENERIC_IRQ_SHOW 40 select GENERIC_ISA_DMA if EISA 41 select GENERIC_LIB_ASHLDI3 42 select GENERIC_LIB_ASHRDI3 43 select GENERIC_LIB_CMPDI2 44 select GENERIC_LIB_LSHRDI3 45 select GENERIC_LIB_UCMPDI2 46 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 47 select GENERIC_SMP_IDLE_THREAD 48 select GENERIC_IDLE_POLL_SETUP 49 select GENERIC_TIME_VSYSCALL 50 select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 51 select HAS_IOPORT if !NO_IOPORT_MAP || ISA 52 select HAVE_ARCH_COMPILER_H 53 select HAVE_ARCH_JUMP_LABEL 54 select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT 55 select HAVE_ARCH_MMAP_RND_BITS if MMU 56 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 57 select HAVE_ARCH_SECCOMP_FILTER 58 select HAVE_ARCH_TRACEHOOK 59 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 60 select HAVE_ASM_MODVERSIONS 61 select HAVE_CONTEXT_TRACKING_USER 62 select HAVE_TIF_NOHZ 63 select HAVE_C_RECORDMCOUNT 64 select HAVE_DEBUG_KMEMLEAK 65 select HAVE_DEBUG_STACKOVERFLOW 66 select HAVE_DMA_CONTIGUOUS 67 select HAVE_DYNAMIC_FTRACE 68 select HAVE_EBPF_JIT if !CPU_MICROMIPS 69 select HAVE_EXIT_THREAD 70 select HAVE_FAST_GUP 71 select HAVE_FTRACE_MCOUNT_RECORD 72 select HAVE_FUNCTION_GRAPH_TRACER 73 select HAVE_FUNCTION_TRACER 74 select HAVE_GCC_PLUGINS 75 select HAVE_GENERIC_VDSO 76 select HAVE_IOREMAP_PROT 77 select HAVE_IRQ_EXIT_ON_IRQ_STACK 78 select HAVE_IRQ_TIME_ACCOUNTING 79 select HAVE_KPROBES 80 select HAVE_KRETPROBES 81 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 82 select HAVE_MOD_ARCH_SPECIFIC 83 select HAVE_NMI 84 select HAVE_PERF_EVENTS 85 select HAVE_PERF_REGS 86 select HAVE_PERF_USER_STACK_DUMP 87 select HAVE_REGS_AND_STACK_ACCESS_API 88 select HAVE_RSEQ 89 select HAVE_SPARSE_SYSCALL_NR 90 select HAVE_STACKPROTECTOR 91 select HAVE_SYSCALL_TRACEPOINTS 92 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 93 select IRQ_FORCED_THREADING 94 select ISA if EISA 95 select LOCK_MM_AND_FIND_VMA 96 select MODULES_USE_ELF_REL if MODULES 97 select MODULES_USE_ELF_RELA if MODULES && 64BIT 98 select PERF_USE_VMALLOC 99 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI 100 select RTC_LIB 101 select SYSCTL_EXCEPTION_TRACE 102 select TRACE_IRQFLAGS_SUPPORT 103 select ARCH_HAS_ELFCORE_COMPAT 104 select HAVE_ARCH_KCSAN if 64BIT 105 106config MIPS_FIXUP_BIGPHYS_ADDR 107 bool 108 109config MIPS_GENERIC 110 bool 111 112config MACH_GENERIC_CORE 113 bool 114 115config MACH_INGENIC 116 bool 117 select SYS_SUPPORTS_32BIT_KERNEL 118 select SYS_SUPPORTS_LITTLE_ENDIAN 119 select SYS_SUPPORTS_ZBOOT 120 select DMA_NONCOHERENT 121 select IRQ_MIPS_CPU 122 select PINCTRL 123 select GPIOLIB 124 select COMMON_CLK 125 select GENERIC_IRQ_CHIP 126 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 127 select USE_OF 128 select CPU_SUPPORTS_CPUFREQ 129 select MIPS_EXTERNAL_TIMER 130 131menu "Machine selection" 132 133choice 134 prompt "System type" 135 default MIPS_GENERIC_KERNEL 136 137config MIPS_GENERIC_KERNEL 138 bool "Generic board-agnostic MIPS kernel" 139 select MIPS_GENERIC 140 select BOOT_RAW 141 select BUILTIN_DTB 142 select CEVT_R4K 143 select CLKSRC_MIPS_GIC 144 select COMMON_CLK 145 select CPU_MIPSR2_IRQ_EI 146 select CPU_MIPSR2_IRQ_VI 147 select CSRC_R4K 148 select DMA_NONCOHERENT 149 select HAVE_PCI 150 select IRQ_MIPS_CPU 151 select MACH_GENERIC_CORE 152 select MIPS_AUTO_PFN_OFFSET 153 select MIPS_CPU_SCACHE 154 select MIPS_GIC 155 select MIPS_L1_CACHE_SHIFT_7 156 select NO_EXCEPT_FILL 157 select PCI_DRIVERS_GENERIC 158 select SMP_UP if SMP 159 select SWAP_IO_SPACE 160 select SYS_HAS_CPU_MIPS32_R1 161 select SYS_HAS_CPU_MIPS32_R2 162 select SYS_HAS_CPU_MIPS32_R5 163 select SYS_HAS_CPU_MIPS32_R6 164 select SYS_HAS_CPU_MIPS64_R1 165 select SYS_HAS_CPU_MIPS64_R2 166 select SYS_HAS_CPU_MIPS64_R5 167 select SYS_HAS_CPU_MIPS64_R6 168 select SYS_SUPPORTS_32BIT_KERNEL 169 select SYS_SUPPORTS_64BIT_KERNEL 170 select SYS_SUPPORTS_BIG_ENDIAN 171 select SYS_SUPPORTS_HIGHMEM 172 select SYS_SUPPORTS_LITTLE_ENDIAN 173 select SYS_SUPPORTS_MICROMIPS 174 select SYS_SUPPORTS_MIPS16 175 select SYS_SUPPORTS_MIPS_CPS 176 select SYS_SUPPORTS_MULTITHREADING 177 select SYS_SUPPORTS_RELOCATABLE 178 select SYS_SUPPORTS_SMARTMIPS 179 select SYS_SUPPORTS_ZBOOT 180 select UHI_BOOT 181 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 182 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 183 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 184 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 185 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 186 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 187 select USE_OF 188 help 189 Select this to build a kernel which aims to support multiple boards, 190 generally using a flattened device tree passed from the bootloader 191 using the boot protocol defined in the UHI (Unified Hosting 192 Interface) specification. 193 194config MIPS_ALCHEMY 195 bool "Alchemy processor based machines" 196 select PHYS_ADDR_T_64BIT 197 select CEVT_R4K 198 select CSRC_R4K 199 select IRQ_MIPS_CPU 200 select DMA_NONCOHERENT # Au1000,1500,1100 aren't, rest is 201 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 202 select SYS_HAS_CPU_MIPS32_R1 203 select SYS_SUPPORTS_32BIT_KERNEL 204 select SYS_SUPPORTS_APM_EMULATION 205 select GPIOLIB 206 select SYS_SUPPORTS_ZBOOT 207 select COMMON_CLK 208 209config ATH25 210 bool "Atheros AR231x/AR531x SoC support" 211 select CEVT_R4K 212 select CSRC_R4K 213 select DMA_NONCOHERENT 214 select IRQ_MIPS_CPU 215 select IRQ_DOMAIN 216 select SYS_HAS_CPU_MIPS32_R1 217 select SYS_SUPPORTS_BIG_ENDIAN 218 select SYS_SUPPORTS_32BIT_KERNEL 219 select SYS_HAS_EARLY_PRINTK 220 help 221 Support for Atheros AR231x and Atheros AR531x based boards 222 223config ATH79 224 bool "Atheros AR71XX/AR724X/AR913X based boards" 225 select ARCH_HAS_RESET_CONTROLLER 226 select BOOT_RAW 227 select CEVT_R4K 228 select CSRC_R4K 229 select DMA_NONCOHERENT 230 select GPIOLIB 231 select PINCTRL 232 select COMMON_CLK 233 select IRQ_MIPS_CPU 234 select SYS_HAS_CPU_MIPS32_R2 235 select SYS_HAS_EARLY_PRINTK 236 select SYS_SUPPORTS_32BIT_KERNEL 237 select SYS_SUPPORTS_BIG_ENDIAN 238 select SYS_SUPPORTS_MIPS16 239 select SYS_SUPPORTS_ZBOOT_UART_PROM 240 select USE_OF 241 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 242 help 243 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 244 245config BMIPS_GENERIC 246 bool "Broadcom Generic BMIPS kernel" 247 select ARCH_HAS_RESET_CONTROLLER 248 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 249 select BOOT_RAW 250 select NO_EXCEPT_FILL 251 select USE_OF 252 select CEVT_R4K 253 select CSRC_R4K 254 select SYNC_R4K 255 select COMMON_CLK 256 select BCM6345_L1_IRQ 257 select BCM7038_L1_IRQ 258 select BCM7120_L2_IRQ 259 select BRCMSTB_L2_IRQ 260 select IRQ_MIPS_CPU 261 select DMA_NONCOHERENT 262 select SYS_SUPPORTS_32BIT_KERNEL 263 select SYS_SUPPORTS_LITTLE_ENDIAN 264 select SYS_SUPPORTS_BIG_ENDIAN 265 select SYS_SUPPORTS_HIGHMEM 266 select SYS_HAS_CPU_BMIPS32_3300 267 select SYS_HAS_CPU_BMIPS4350 268 select SYS_HAS_CPU_BMIPS4380 269 select SYS_HAS_CPU_BMIPS5000 270 select SWAP_IO_SPACE 271 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 272 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 273 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 274 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 275 select HARDIRQS_SW_RESEND 276 select HAVE_PCI 277 select PCI_DRIVERS_GENERIC 278 select FW_CFE 279 help 280 Build a generic DT-based kernel image that boots on select 281 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 282 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 283 must be set appropriately for your board. 284 285config BCM47XX 286 bool "Broadcom BCM47XX based boards" 287 select BOOT_RAW 288 select CEVT_R4K 289 select CSRC_R4K 290 select DMA_NONCOHERENT 291 select HAVE_PCI 292 select IRQ_MIPS_CPU 293 select SYS_HAS_CPU_MIPS32_R1 294 select NO_EXCEPT_FILL 295 select SYS_SUPPORTS_32BIT_KERNEL 296 select SYS_SUPPORTS_LITTLE_ENDIAN 297 select SYS_SUPPORTS_MIPS16 298 select SYS_SUPPORTS_ZBOOT 299 select SYS_HAS_EARLY_PRINTK 300 select USE_GENERIC_EARLY_PRINTK_8250 301 select GPIOLIB 302 select LEDS_GPIO_REGISTER 303 select BCM47XX_NVRAM 304 select BCM47XX_SPROM 305 select BCM47XX_SSB if !BCM47XX_BCMA 306 help 307 Support for BCM47XX based boards 308 309config BCM63XX 310 bool "Broadcom BCM63XX based boards" 311 select BOOT_RAW 312 select CEVT_R4K 313 select CSRC_R4K 314 select SYNC_R4K 315 select DMA_NONCOHERENT 316 select IRQ_MIPS_CPU 317 select SYS_SUPPORTS_32BIT_KERNEL 318 select SYS_SUPPORTS_BIG_ENDIAN 319 select SYS_HAS_EARLY_PRINTK 320 select SYS_HAS_CPU_BMIPS32_3300 321 select SYS_HAS_CPU_BMIPS4350 322 select SYS_HAS_CPU_BMIPS4380 323 select SWAP_IO_SPACE 324 select GPIOLIB 325 select MIPS_L1_CACHE_SHIFT_4 326 select HAVE_LEGACY_CLK 327 help 328 Support for BCM63XX based boards 329 330config MIPS_COBALT 331 bool "Cobalt Server" 332 select CEVT_R4K 333 select CSRC_R4K 334 select CEVT_GT641XX 335 select DMA_NONCOHERENT 336 select FORCE_PCI 337 select I8253 338 select I8259 339 select IRQ_MIPS_CPU 340 select IRQ_GT641XX 341 select PCI_GT64XXX_PCI0 342 select SYS_HAS_CPU_NEVADA 343 select SYS_HAS_EARLY_PRINTK 344 select SYS_SUPPORTS_32BIT_KERNEL 345 select SYS_SUPPORTS_64BIT_KERNEL 346 select SYS_SUPPORTS_LITTLE_ENDIAN 347 select USE_GENERIC_EARLY_PRINTK_8250 348 349config MACH_DECSTATION 350 bool "DECstations" 351 select BOOT_ELF32 352 select CEVT_DS1287 353 select CEVT_R4K if CPU_R4X00 354 select CSRC_IOASIC 355 select CSRC_R4K if CPU_R4X00 356 select CPU_DADDI_WORKAROUNDS if 64BIT 357 select CPU_R4000_WORKAROUNDS if 64BIT 358 select CPU_R4400_WORKAROUNDS if 64BIT 359 select DMA_NONCOHERENT 360 select NO_IOPORT_MAP 361 select IRQ_MIPS_CPU 362 select SYS_HAS_CPU_R3000 363 select SYS_HAS_CPU_R4X00 364 select SYS_SUPPORTS_32BIT_KERNEL 365 select SYS_SUPPORTS_64BIT_KERNEL 366 select SYS_SUPPORTS_LITTLE_ENDIAN 367 select SYS_SUPPORTS_128HZ 368 select SYS_SUPPORTS_256HZ 369 select SYS_SUPPORTS_1024HZ 370 select MIPS_L1_CACHE_SHIFT_4 371 help 372 This enables support for DEC's MIPS based workstations. For details 373 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 374 DECstation porting pages on <http://decstation.unix-ag.org/>. 375 376 If you have one of the following DECstation Models you definitely 377 want to choose R4xx0 for the CPU Type: 378 379 DECstation 5000/50 380 DECstation 5000/150 381 DECstation 5000/260 382 DECsystem 5900/260 383 384 otherwise choose R3000. 385 386config MACH_JAZZ 387 bool "Jazz family of machines" 388 select ARC_MEMORY 389 select ARC_PROMLIB 390 select ARCH_MIGHT_HAVE_PC_PARPORT 391 select ARCH_MIGHT_HAVE_PC_SERIO 392 select DMA_OPS 393 select FW_ARC 394 select FW_ARC32 395 select ARCH_MAY_HAVE_PC_FDC 396 select CEVT_R4K 397 select CSRC_R4K 398 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 399 select GENERIC_ISA_DMA 400 select HAVE_PCSPKR_PLATFORM 401 select IRQ_MIPS_CPU 402 select I8253 403 select I8259 404 select ISA 405 select SYS_HAS_CPU_R4X00 406 select SYS_SUPPORTS_32BIT_KERNEL 407 select SYS_SUPPORTS_64BIT_KERNEL 408 select SYS_SUPPORTS_100HZ 409 select SYS_SUPPORTS_LITTLE_ENDIAN 410 help 411 This a family of machines based on the MIPS R4030 chipset which was 412 used by several vendors to build RISC/os and Windows NT workstations. 413 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 414 Olivetti M700-10 workstations. 415 416config MACH_INGENIC_SOC 417 bool "Ingenic SoC based machines" 418 select MIPS_GENERIC 419 select MACH_INGENIC 420 select MACH_GENERIC_CORE 421 select SYS_SUPPORTS_ZBOOT_UART16550 422 select CPU_SUPPORTS_CPUFREQ 423 select MIPS_EXTERNAL_TIMER 424 425config LANTIQ 426 bool "Lantiq based platforms" 427 select DMA_NONCOHERENT 428 select IRQ_MIPS_CPU 429 select CEVT_R4K 430 select CSRC_R4K 431 select NO_EXCEPT_FILL 432 select SYS_HAS_CPU_MIPS32_R1 433 select SYS_HAS_CPU_MIPS32_R2 434 select SYS_SUPPORTS_BIG_ENDIAN 435 select SYS_SUPPORTS_32BIT_KERNEL 436 select SYS_SUPPORTS_MIPS16 437 select SYS_SUPPORTS_MULTITHREADING 438 select SYS_SUPPORTS_VPE_LOADER 439 select SYS_HAS_EARLY_PRINTK 440 select GPIOLIB 441 select SWAP_IO_SPACE 442 select BOOT_RAW 443 select HAVE_LEGACY_CLK 444 select USE_OF 445 select PINCTRL 446 select PINCTRL_LANTIQ 447 select ARCH_HAS_RESET_CONTROLLER 448 select RESET_CONTROLLER 449 450config MACH_LOONGSON32 451 bool "Loongson 32-bit family of machines" 452 select SYS_SUPPORTS_ZBOOT 453 help 454 This enables support for the Loongson-1 family of machines. 455 456 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 457 the Institute of Computing Technology (ICT), Chinese Academy of 458 Sciences (CAS). 459 460config MACH_LOONGSON2EF 461 bool "Loongson-2E/F family of machines" 462 select SYS_SUPPORTS_ZBOOT 463 help 464 This enables the support of early Loongson-2E/F family of machines. 465 466config MACH_LOONGSON64 467 bool "Loongson 64-bit family of machines" 468 select ARCH_DMA_DEFAULT_COHERENT 469 select ARCH_SPARSEMEM_ENABLE 470 select ARCH_MIGHT_HAVE_PC_PARPORT 471 select ARCH_MIGHT_HAVE_PC_SERIO 472 select GENERIC_ISA_DMA_SUPPORT_BROKEN 473 select BOOT_ELF32 474 select BOARD_SCACHE 475 select CSRC_R4K 476 select CEVT_R4K 477 select FORCE_PCI 478 select ISA 479 select I8259 480 select IRQ_MIPS_CPU 481 select NO_EXCEPT_FILL 482 select NR_CPUS_DEFAULT_64 483 select USE_GENERIC_EARLY_PRINTK_8250 484 select PCI_DRIVERS_GENERIC 485 select SYS_HAS_CPU_LOONGSON64 486 select SYS_HAS_EARLY_PRINTK 487 select SYS_SUPPORTS_SMP 488 select SYS_SUPPORTS_HOTPLUG_CPU 489 select SYS_SUPPORTS_NUMA 490 select SYS_SUPPORTS_64BIT_KERNEL 491 select SYS_SUPPORTS_HIGHMEM 492 select SYS_SUPPORTS_LITTLE_ENDIAN 493 select SYS_SUPPORTS_ZBOOT 494 select SYS_SUPPORTS_RELOCATABLE 495 select ZONE_DMA32 496 select COMMON_CLK 497 select USE_OF 498 select BUILTIN_DTB 499 select PCI_HOST_GENERIC 500 select HAVE_ARCH_NODEDATA_EXTENSION if NUMA 501 help 502 This enables the support of Loongson-2/3 family of machines. 503 504 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 505 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 506 and Loongson-2F which will be removed), developed by the Institute 507 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 508 509config MIPS_MALTA 510 bool "MIPS Malta board" 511 select ARCH_MAY_HAVE_PC_FDC 512 select ARCH_MIGHT_HAVE_PC_PARPORT 513 select ARCH_MIGHT_HAVE_PC_SERIO 514 select BOOT_ELF32 515 select BOOT_RAW 516 select BUILTIN_DTB 517 select CEVT_R4K 518 select CLKSRC_MIPS_GIC 519 select COMMON_CLK 520 select CSRC_R4K 521 select DMA_NONCOHERENT 522 select GENERIC_ISA_DMA 523 select HAVE_PCSPKR_PLATFORM 524 select HAVE_PCI 525 select I8253 526 select I8259 527 select IRQ_MIPS_CPU 528 select MIPS_BONITO64 529 select MIPS_CPU_SCACHE 530 select MIPS_GIC 531 select MIPS_L1_CACHE_SHIFT_6 532 select MIPS_MSC 533 select PCI_GT64XXX_PCI0 534 select SMP_UP if SMP 535 select SWAP_IO_SPACE 536 select SYS_HAS_CPU_MIPS32_R1 537 select SYS_HAS_CPU_MIPS32_R2 538 select SYS_HAS_CPU_MIPS32_R3_5 539 select SYS_HAS_CPU_MIPS32_R5 540 select SYS_HAS_CPU_MIPS32_R6 541 select SYS_HAS_CPU_MIPS64_R1 542 select SYS_HAS_CPU_MIPS64_R2 543 select SYS_HAS_CPU_MIPS64_R6 544 select SYS_HAS_CPU_NEVADA 545 select SYS_HAS_CPU_RM7000 546 select SYS_SUPPORTS_32BIT_KERNEL 547 select SYS_SUPPORTS_64BIT_KERNEL 548 select SYS_SUPPORTS_BIG_ENDIAN 549 select SYS_SUPPORTS_HIGHMEM 550 select SYS_SUPPORTS_LITTLE_ENDIAN 551 select SYS_SUPPORTS_MICROMIPS 552 select SYS_SUPPORTS_MIPS16 553 select SYS_SUPPORTS_MIPS_CPS 554 select SYS_SUPPORTS_MULTITHREADING 555 select SYS_SUPPORTS_RELOCATABLE 556 select SYS_SUPPORTS_SMARTMIPS 557 select SYS_SUPPORTS_VPE_LOADER 558 select SYS_SUPPORTS_ZBOOT 559 select USE_OF 560 select WAR_ICACHE_REFILLS 561 select ZONE_DMA32 if 64BIT 562 help 563 This enables support for the MIPS Technologies Malta evaluation 564 board. 565 566config MACH_PIC32 567 bool "Microchip PIC32 Family" 568 help 569 This enables support for the Microchip PIC32 family of platforms. 570 571 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 572 microcontrollers. 573 574config MACH_EYEQ5 575 bool "Mobileye EyeQ5 SoC" 576 select MACH_GENERIC_CORE 577 select ARM_AMBA 578 select PHYSICAL_START_BOOL 579 select ARCH_SPARSEMEM_DEFAULT if 64BIT 580 select BOOT_RAW 581 select BUILTIN_DTB 582 select CEVT_R4K 583 select CLKSRC_MIPS_GIC 584 select COMMON_CLK 585 select CPU_MIPSR2_IRQ_EI 586 select CPU_MIPSR2_IRQ_VI 587 select CSRC_R4K 588 select DMA_NONCOHERENT 589 select HAVE_PCI 590 select IRQ_MIPS_CPU 591 select MIPS_AUTO_PFN_OFFSET 592 select MIPS_CPU_SCACHE 593 select MIPS_GIC 594 select MIPS_L1_CACHE_SHIFT_7 595 select PCI_DRIVERS_GENERIC 596 select SMP_UP if SMP 597 select SWAP_IO_SPACE 598 select SYS_HAS_CPU_MIPS64_R6 599 select SYS_SUPPORTS_64BIT_KERNEL 600 select SYS_SUPPORTS_HIGHMEM 601 select SYS_SUPPORTS_LITTLE_ENDIAN 602 select SYS_SUPPORTS_MIPS_CPS 603 select SYS_SUPPORTS_RELOCATABLE 604 select SYS_SUPPORTS_ZBOOT 605 select UHI_BOOT 606 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 607 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 608 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 609 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 610 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 611 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 612 select USE_OF 613 help 614 Select this to build a kernel supporting EyeQ5 SoC from Mobileye. 615 616 bool 617 618config FIT_IMAGE_FDT_EPM5 619 bool "Include FDT for Mobileye EyeQ5 development platforms" 620 depends on MACH_EYEQ5 621 default n 622 help 623 Enable this to include the FDT for the EyeQ5 development platforms 624 from Mobileye in the FIT kernel image. 625 This requires u-boot on the platform. 626 627config MACH_NINTENDO64 628 bool "Nintendo 64 console" 629 select CEVT_R4K 630 select CSRC_R4K 631 select SYS_HAS_CPU_R4300 632 select SYS_SUPPORTS_BIG_ENDIAN 633 select SYS_SUPPORTS_ZBOOT 634 select SYS_SUPPORTS_32BIT_KERNEL 635 select SYS_SUPPORTS_64BIT_KERNEL 636 select DMA_NONCOHERENT 637 select IRQ_MIPS_CPU 638 639config RALINK 640 bool "Ralink based machines" 641 select CEVT_R4K 642 select COMMON_CLK 643 select CSRC_R4K 644 select BOOT_RAW 645 select DMA_NONCOHERENT 646 select IRQ_MIPS_CPU 647 select USE_OF 648 select SYS_HAS_CPU_MIPS32_R2 649 select SYS_SUPPORTS_32BIT_KERNEL 650 select SYS_SUPPORTS_LITTLE_ENDIAN 651 select SYS_SUPPORTS_MIPS16 652 select SYS_SUPPORTS_ZBOOT 653 select SYS_HAS_EARLY_PRINTK 654 select ARCH_HAS_RESET_CONTROLLER 655 select RESET_CONTROLLER 656 657config MACH_REALTEK_RTL 658 bool "Realtek RTL838x/RTL839x based machines" 659 select MIPS_GENERIC 660 select MACH_GENERIC_CORE 661 select DMA_NONCOHERENT 662 select IRQ_MIPS_CPU 663 select CSRC_R4K 664 select CEVT_R4K 665 select SYS_HAS_CPU_MIPS32_R1 666 select SYS_HAS_CPU_MIPS32_R2 667 select SYS_SUPPORTS_BIG_ENDIAN 668 select SYS_SUPPORTS_32BIT_KERNEL 669 select SYS_SUPPORTS_MIPS16 670 select SYS_SUPPORTS_MULTITHREADING 671 select SYS_SUPPORTS_VPE_LOADER 672 select BOOT_RAW 673 select PINCTRL 674 select USE_OF 675 676config SGI_IP22 677 bool "SGI IP22 (Indy/Indigo2)" 678 select ARC_MEMORY 679 select ARC_PROMLIB 680 select FW_ARC 681 select FW_ARC32 682 select ARCH_MIGHT_HAVE_PC_SERIO 683 select BOOT_ELF32 684 select CEVT_R4K 685 select CSRC_R4K 686 select DEFAULT_SGI_PARTITION 687 select DMA_NONCOHERENT 688 select HAVE_EISA 689 select I8253 690 select I8259 691 select IP22_CPU_SCACHE 692 select IRQ_MIPS_CPU 693 select GENERIC_ISA_DMA_SUPPORT_BROKEN 694 select SGI_HAS_I8042 695 select SGI_HAS_INDYDOG 696 select SGI_HAS_HAL2 697 select SGI_HAS_SEEQ 698 select SGI_HAS_WD93 699 select SGI_HAS_ZILOG 700 select SWAP_IO_SPACE 701 select SYS_HAS_CPU_R4X00 702 select SYS_HAS_CPU_R5000 703 select SYS_HAS_EARLY_PRINTK 704 select SYS_SUPPORTS_32BIT_KERNEL 705 select SYS_SUPPORTS_64BIT_KERNEL 706 select SYS_SUPPORTS_BIG_ENDIAN 707 select WAR_R4600_V1_INDEX_ICACHEOP 708 select WAR_R4600_V1_HIT_CACHEOP 709 select WAR_R4600_V2_HIT_CACHEOP 710 select MIPS_L1_CACHE_SHIFT_7 711 help 712 This are the SGI Indy, Challenge S and Indigo2, as well as certain 713 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 714 that runs on these, say Y here. 715 716config SGI_IP27 717 bool "SGI IP27 (Origin200/2000)" 718 select ARCH_HAS_PHYS_TO_DMA 719 select ARCH_SPARSEMEM_ENABLE 720 select FW_ARC 721 select FW_ARC64 722 select ARC_CMDLINE_ONLY 723 select BOOT_ELF64 724 select DEFAULT_SGI_PARTITION 725 select FORCE_PCI 726 select SYS_HAS_EARLY_PRINTK 727 select HAVE_PCI 728 select IRQ_MIPS_CPU 729 select IRQ_DOMAIN_HIERARCHY 730 select NR_CPUS_DEFAULT_64 731 select PCI_DRIVERS_GENERIC 732 select PCI_XTALK_BRIDGE 733 select SYS_HAS_CPU_R10000 734 select SYS_SUPPORTS_64BIT_KERNEL 735 select SYS_SUPPORTS_BIG_ENDIAN 736 select SYS_SUPPORTS_NUMA 737 select SYS_SUPPORTS_SMP 738 select WAR_R10000_LLSC 739 select MIPS_L1_CACHE_SHIFT_7 740 select NUMA 741 select HAVE_ARCH_NODEDATA_EXTENSION 742 help 743 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 744 workstations. To compile a Linux kernel that runs on these, say Y 745 here. 746 747config SGI_IP28 748 bool "SGI IP28 (Indigo2 R10k)" 749 select ARC_MEMORY 750 select ARC_PROMLIB 751 select FW_ARC 752 select FW_ARC64 753 select ARCH_MIGHT_HAVE_PC_SERIO 754 select BOOT_ELF64 755 select CEVT_R4K 756 select CSRC_R4K 757 select DEFAULT_SGI_PARTITION 758 select DMA_NONCOHERENT 759 select GENERIC_ISA_DMA_SUPPORT_BROKEN 760 select IRQ_MIPS_CPU 761 select HAVE_EISA 762 select I8253 763 select I8259 764 select SGI_HAS_I8042 765 select SGI_HAS_INDYDOG 766 select SGI_HAS_HAL2 767 select SGI_HAS_SEEQ 768 select SGI_HAS_WD93 769 select SGI_HAS_ZILOG 770 select SWAP_IO_SPACE 771 select SYS_HAS_CPU_R10000 772 select SYS_HAS_EARLY_PRINTK 773 select SYS_SUPPORTS_64BIT_KERNEL 774 select SYS_SUPPORTS_BIG_ENDIAN 775 select WAR_R10000_LLSC 776 select MIPS_L1_CACHE_SHIFT_7 777 help 778 This is the SGI Indigo2 with R10000 processor. To compile a Linux 779 kernel that runs on these, say Y here. 780 781config SGI_IP30 782 bool "SGI IP30 (Octane/Octane2)" 783 select ARCH_HAS_PHYS_TO_DMA 784 select FW_ARC 785 select FW_ARC64 786 select BOOT_ELF64 787 select CEVT_R4K 788 select CSRC_R4K 789 select FORCE_PCI 790 select SYNC_R4K if SMP 791 select ZONE_DMA32 792 select HAVE_PCI 793 select IRQ_MIPS_CPU 794 select IRQ_DOMAIN_HIERARCHY 795 select PCI_DRIVERS_GENERIC 796 select PCI_XTALK_BRIDGE 797 select SYS_HAS_EARLY_PRINTK 798 select SYS_HAS_CPU_R10000 799 select SYS_SUPPORTS_64BIT_KERNEL 800 select SYS_SUPPORTS_BIG_ENDIAN 801 select SYS_SUPPORTS_SMP 802 select WAR_R10000_LLSC 803 select MIPS_L1_CACHE_SHIFT_7 804 select ARC_MEMORY 805 help 806 These are the SGI Octane and Octane2 graphics workstations. To 807 compile a Linux kernel that runs on these, say Y here. 808 809config SGI_IP32 810 bool "SGI IP32 (O2)" 811 select ARC_MEMORY 812 select ARC_PROMLIB 813 select ARCH_HAS_PHYS_TO_DMA 814 select FW_ARC 815 select FW_ARC32 816 select BOOT_ELF32 817 select CEVT_R4K 818 select CSRC_R4K 819 select DMA_NONCOHERENT 820 select HAVE_PCI 821 select IRQ_MIPS_CPU 822 select R5000_CPU_SCACHE 823 select RM7000_CPU_SCACHE 824 select SYS_HAS_CPU_R5000 825 select SYS_HAS_CPU_R10000 if BROKEN 826 select SYS_HAS_CPU_RM7000 827 select SYS_HAS_CPU_NEVADA 828 select SYS_SUPPORTS_64BIT_KERNEL 829 select SYS_SUPPORTS_BIG_ENDIAN 830 select WAR_ICACHE_REFILLS 831 help 832 If you want this kernel to run on SGI O2 workstation, say Y here. 833 834config SIBYTE_CRHONE 835 bool "Sibyte BCM91125C-CRhone" 836 select BOOT_ELF32 837 select SIBYTE_BCM1125 838 select SWAP_IO_SPACE 839 select SYS_HAS_CPU_SB1 840 select SYS_SUPPORTS_BIG_ENDIAN 841 select SYS_SUPPORTS_HIGHMEM 842 select SYS_SUPPORTS_LITTLE_ENDIAN 843 844config SIBYTE_RHONE 845 bool "Sibyte BCM91125E-Rhone" 846 select BOOT_ELF32 847 select SIBYTE_SB1250 848 select SWAP_IO_SPACE 849 select SYS_HAS_CPU_SB1 850 select SYS_SUPPORTS_BIG_ENDIAN 851 select SYS_SUPPORTS_LITTLE_ENDIAN 852 853config SIBYTE_SWARM 854 bool "Sibyte BCM91250A-SWARM" 855 select BOOT_ELF32 856 select HAVE_PATA_PLATFORM 857 select SIBYTE_SB1250 858 select SWAP_IO_SPACE 859 select SYS_HAS_CPU_SB1 860 select SYS_SUPPORTS_BIG_ENDIAN 861 select SYS_SUPPORTS_HIGHMEM 862 select SYS_SUPPORTS_LITTLE_ENDIAN 863 select ZONE_DMA32 if 64BIT 864 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 865 866config SIBYTE_LITTLESUR 867 bool "Sibyte BCM91250C2-LittleSur" 868 select BOOT_ELF32 869 select HAVE_PATA_PLATFORM 870 select SIBYTE_SB1250 871 select SWAP_IO_SPACE 872 select SYS_HAS_CPU_SB1 873 select SYS_SUPPORTS_BIG_ENDIAN 874 select SYS_SUPPORTS_HIGHMEM 875 select SYS_SUPPORTS_LITTLE_ENDIAN 876 select ZONE_DMA32 if 64BIT 877 878config SIBYTE_SENTOSA 879 bool "Sibyte BCM91250E-Sentosa" 880 select BOOT_ELF32 881 select SIBYTE_SB1250 882 select SWAP_IO_SPACE 883 select SYS_HAS_CPU_SB1 884 select SYS_SUPPORTS_BIG_ENDIAN 885 select SYS_SUPPORTS_LITTLE_ENDIAN 886 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 887 888config SIBYTE_BIGSUR 889 bool "Sibyte BCM91480B-BigSur" 890 select BOOT_ELF32 891 select NR_CPUS_DEFAULT_4 892 select SIBYTE_BCM1x80 893 select SWAP_IO_SPACE 894 select SYS_HAS_CPU_SB1 895 select SYS_SUPPORTS_BIG_ENDIAN 896 select SYS_SUPPORTS_HIGHMEM 897 select SYS_SUPPORTS_LITTLE_ENDIAN 898 select ZONE_DMA32 if 64BIT 899 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 900 901config SNI_RM 902 bool "SNI RM200/300/400" 903 select ARC_MEMORY 904 select ARC_PROMLIB 905 select FW_ARC if CPU_LITTLE_ENDIAN 906 select FW_ARC32 if CPU_LITTLE_ENDIAN 907 select FW_SNIPROM if CPU_BIG_ENDIAN 908 select ARCH_MAY_HAVE_PC_FDC 909 select ARCH_MIGHT_HAVE_PC_PARPORT 910 select ARCH_MIGHT_HAVE_PC_SERIO 911 select BOOT_ELF32 912 select CEVT_R4K 913 select CSRC_R4K 914 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 915 select DMA_NONCOHERENT 916 select GENERIC_ISA_DMA 917 select HAVE_EISA 918 select HAVE_PCSPKR_PLATFORM 919 select HAVE_PCI 920 select IRQ_MIPS_CPU 921 select I8253 922 select I8259 923 select ISA 924 select MIPS_L1_CACHE_SHIFT_6 925 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 926 select SYS_HAS_CPU_R4X00 927 select SYS_HAS_CPU_R5000 928 select SYS_HAS_CPU_R10000 929 select R5000_CPU_SCACHE 930 select SYS_HAS_EARLY_PRINTK 931 select SYS_SUPPORTS_32BIT_KERNEL 932 select SYS_SUPPORTS_64BIT_KERNEL 933 select SYS_SUPPORTS_BIG_ENDIAN 934 select SYS_SUPPORTS_HIGHMEM 935 select SYS_SUPPORTS_LITTLE_ENDIAN 936 select WAR_R4600_V2_HIT_CACHEOP 937 help 938 The SNI RM200/300/400 are MIPS-based machines manufactured by 939 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 940 Technology and now in turn merged with Fujitsu. Say Y here to 941 support this machine type. 942 943config MACH_TX49XX 944 bool "Toshiba TX49 series based machines" 945 select WAR_TX49XX_ICACHE_INDEX_INV 946 947config MIKROTIK_RB532 948 bool "Mikrotik RB532 boards" 949 select CEVT_R4K 950 select CSRC_R4K 951 select DMA_NONCOHERENT 952 select HAVE_PCI 953 select IRQ_MIPS_CPU 954 select SYS_HAS_CPU_MIPS32_R1 955 select SYS_SUPPORTS_32BIT_KERNEL 956 select SYS_SUPPORTS_LITTLE_ENDIAN 957 select SWAP_IO_SPACE 958 select BOOT_RAW 959 select GPIOLIB 960 select MIPS_L1_CACHE_SHIFT_4 961 help 962 Support the Mikrotik(tm) RouterBoard 532 series, 963 based on the IDT RC32434 SoC. 964 965config CAVIUM_OCTEON_SOC 966 bool "Cavium Networks Octeon SoC based boards" 967 select CEVT_R4K 968 select ARCH_HAS_PHYS_TO_DMA 969 select HAVE_RAPIDIO 970 select PHYS_ADDR_T_64BIT 971 select SYS_SUPPORTS_64BIT_KERNEL 972 select SYS_SUPPORTS_BIG_ENDIAN 973 select EDAC_SUPPORT 974 select EDAC_ATOMIC_SCRUB 975 select SYS_SUPPORTS_LITTLE_ENDIAN 976 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 977 select SYS_HAS_EARLY_PRINTK 978 select SYS_HAS_CPU_CAVIUM_OCTEON 979 select HAVE_PCI 980 select HAVE_PLAT_DELAY 981 select HAVE_PLAT_FW_INIT_CMDLINE 982 select HAVE_PLAT_MEMCPY 983 select ZONE_DMA32 984 select GPIOLIB 985 select USE_OF 986 select ARCH_SPARSEMEM_ENABLE 987 select SYS_SUPPORTS_SMP 988 select NR_CPUS_DEFAULT_64 989 select MIPS_NR_CPU_NR_MAP_1024 990 select BUILTIN_DTB 991 select MTD 992 select MTD_COMPLEX_MAPPINGS 993 select SWIOTLB 994 select SYS_SUPPORTS_RELOCATABLE 995 help 996 This option supports all of the Octeon reference boards from Cavium 997 Networks. It builds a kernel that dynamically determines the Octeon 998 CPU type and supports all known board reference implementations. 999 Some of the supported boards are: 1000 EBT3000 1001 EBH3000 1002 EBH3100 1003 Thunder 1004 Kodama 1005 Hikari 1006 Say Y here for most Octeon reference boards. 1007 1008endchoice 1009 1010source "arch/mips/alchemy/Kconfig" 1011source "arch/mips/ath25/Kconfig" 1012source "arch/mips/ath79/Kconfig" 1013source "arch/mips/bcm47xx/Kconfig" 1014source "arch/mips/bcm63xx/Kconfig" 1015source "arch/mips/bmips/Kconfig" 1016source "arch/mips/generic/Kconfig" 1017source "arch/mips/ingenic/Kconfig" 1018source "arch/mips/jazz/Kconfig" 1019source "arch/mips/lantiq/Kconfig" 1020source "arch/mips/pic32/Kconfig" 1021source "arch/mips/ralink/Kconfig" 1022source "arch/mips/sgi-ip27/Kconfig" 1023source "arch/mips/sibyte/Kconfig" 1024source "arch/mips/txx9/Kconfig" 1025source "arch/mips/cavium-octeon/Kconfig" 1026source "arch/mips/loongson2ef/Kconfig" 1027source "arch/mips/loongson32/Kconfig" 1028source "arch/mips/loongson64/Kconfig" 1029 1030endmenu 1031 1032config GENERIC_HWEIGHT 1033 bool 1034 default y 1035 1036config GENERIC_CALIBRATE_DELAY 1037 bool 1038 default y 1039 1040config SCHED_OMIT_FRAME_POINTER 1041 bool 1042 default y 1043 1044# 1045# Select some configuration options automatically based on user selections. 1046# 1047config FW_ARC 1048 bool 1049 1050config ARCH_MAY_HAVE_PC_FDC 1051 bool 1052 1053config BOOT_RAW 1054 bool 1055 1056config CEVT_BCM1480 1057 bool 1058 1059config CEVT_DS1287 1060 bool 1061 1062config CEVT_GT641XX 1063 bool 1064 1065config CEVT_R4K 1066 bool 1067 1068config CEVT_SB1250 1069 bool 1070 1071config CEVT_TXX9 1072 bool 1073 1074config CSRC_BCM1480 1075 bool 1076 1077config CSRC_IOASIC 1078 bool 1079 1080config CSRC_R4K 1081 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1082 bool 1083 1084config CSRC_SB1250 1085 bool 1086 1087config MIPS_CLOCK_VSYSCALL 1088 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1089 1090config GPIO_TXX9 1091 select GPIOLIB 1092 bool 1093 1094config FW_CFE 1095 bool 1096 1097config ARCH_SUPPORTS_UPROBES 1098 def_bool y 1099 1100config DMA_NONCOHERENT 1101 bool 1102 # 1103 # MIPS allows mixing "slightly different" Cacheability and Coherency 1104 # Attribute bits. It is believed that the uncached access through 1105 # KSEG1 and the implementation specific "uncached accelerated" used 1106 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1107 # significant advantages. 1108 # 1109 select ARCH_HAS_SETUP_DMA_OPS 1110 select ARCH_HAS_DMA_WRITE_COMBINE 1111 select ARCH_HAS_DMA_PREP_COHERENT 1112 select ARCH_HAS_SYNC_DMA_FOR_CPU 1113 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1114 select ARCH_HAS_DMA_SET_UNCACHED 1115 select DMA_NONCOHERENT_MMAP 1116 select NEED_DMA_MAP_STATE 1117 1118config SYS_HAS_EARLY_PRINTK 1119 bool 1120 1121config SYS_SUPPORTS_HOTPLUG_CPU 1122 bool 1123 1124config MIPS_BONITO64 1125 bool 1126 1127config MIPS_MSC 1128 bool 1129 1130config SYNC_R4K 1131 bool 1132 1133config NO_IOPORT_MAP 1134 def_bool n 1135 1136config GENERIC_CSUM 1137 def_bool CPU_NO_LOAD_STORE_LR 1138 1139config GENERIC_ISA_DMA 1140 bool 1141 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1142 select ISA_DMA_API 1143 1144config GENERIC_ISA_DMA_SUPPORT_BROKEN 1145 bool 1146 select GENERIC_ISA_DMA 1147 1148config HAVE_PLAT_DELAY 1149 bool 1150 1151config HAVE_PLAT_FW_INIT_CMDLINE 1152 bool 1153 1154config HAVE_PLAT_MEMCPY 1155 bool 1156 1157config ISA_DMA_API 1158 bool 1159 1160config SYS_SUPPORTS_RELOCATABLE 1161 bool 1162 help 1163 Selected if the platform supports relocating the kernel. 1164 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1165 to allow access to command line and entropy sources. 1166 1167# 1168# Endianness selection. Sufficiently obscure so many users don't know what to 1169# answer,so we try hard to limit the available choices. Also the use of a 1170# choice statement should be more obvious to the user. 1171# 1172choice 1173 prompt "Endianness selection" 1174 help 1175 Some MIPS machines can be configured for either little or big endian 1176 byte order. These modes require different kernels and a different 1177 Linux distribution. In general there is one preferred byteorder for a 1178 particular system but some systems are just as commonly used in the 1179 one or the other endianness. 1180 1181config CPU_BIG_ENDIAN 1182 bool "Big endian" 1183 depends on SYS_SUPPORTS_BIG_ENDIAN 1184 1185config CPU_LITTLE_ENDIAN 1186 bool "Little endian" 1187 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1188 1189endchoice 1190 1191config EXPORT_UASM 1192 bool 1193 1194config SYS_SUPPORTS_APM_EMULATION 1195 bool 1196 1197config SYS_SUPPORTS_BIG_ENDIAN 1198 bool 1199 1200config SYS_SUPPORTS_LITTLE_ENDIAN 1201 bool 1202 1203config MIPS_HUGE_TLB_SUPPORT 1204 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1205 1206config IRQ_TXX9 1207 bool 1208 1209config IRQ_GT641XX 1210 bool 1211 1212config PCI_GT64XXX_PCI0 1213 bool 1214 1215config PCI_XTALK_BRIDGE 1216 bool 1217 1218config NO_EXCEPT_FILL 1219 bool 1220 1221config MIPS_SPRAM 1222 bool 1223 1224config SWAP_IO_SPACE 1225 bool 1226 1227config SGI_HAS_INDYDOG 1228 bool 1229 1230config SGI_HAS_HAL2 1231 bool 1232 1233config SGI_HAS_SEEQ 1234 bool 1235 1236config SGI_HAS_WD93 1237 bool 1238 1239config SGI_HAS_ZILOG 1240 bool 1241 1242config SGI_HAS_I8042 1243 bool 1244 1245config DEFAULT_SGI_PARTITION 1246 bool 1247 1248config FW_ARC32 1249 bool 1250 1251config FW_SNIPROM 1252 bool 1253 1254config BOOT_ELF32 1255 bool 1256 1257config MIPS_L1_CACHE_SHIFT_4 1258 bool 1259 1260config MIPS_L1_CACHE_SHIFT_5 1261 bool 1262 1263config MIPS_L1_CACHE_SHIFT_6 1264 bool 1265 1266config MIPS_L1_CACHE_SHIFT_7 1267 bool 1268 1269config MIPS_L1_CACHE_SHIFT 1270 int 1271 default "7" if MIPS_L1_CACHE_SHIFT_7 1272 default "6" if MIPS_L1_CACHE_SHIFT_6 1273 default "5" if MIPS_L1_CACHE_SHIFT_5 1274 default "4" if MIPS_L1_CACHE_SHIFT_4 1275 default "5" 1276 1277config ARC_CMDLINE_ONLY 1278 bool 1279 1280config ARC_CONSOLE 1281 bool "ARC console support" 1282 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1283 1284config ARC_MEMORY 1285 bool 1286 1287config ARC_PROMLIB 1288 bool 1289 1290config FW_ARC64 1291 bool 1292 1293config BOOT_ELF64 1294 bool 1295 1296menu "CPU selection" 1297 1298choice 1299 prompt "CPU type" 1300 default CPU_R4X00 1301 1302config CPU_LOONGSON64 1303 bool "Loongson 64-bit CPU" 1304 depends on SYS_HAS_CPU_LOONGSON64 1305 select ARCH_HAS_PHYS_TO_DMA 1306 select CPU_MIPSR2 1307 select CPU_HAS_PREFETCH 1308 select CPU_SUPPORTS_64BIT_KERNEL 1309 select CPU_SUPPORTS_HIGHMEM 1310 select CPU_SUPPORTS_HUGEPAGES 1311 select CPU_SUPPORTS_MSA 1312 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1313 select CPU_MIPSR2_IRQ_VI 1314 select DMA_NONCOHERENT 1315 select WEAK_ORDERING 1316 select WEAK_REORDERING_BEYOND_LLSC 1317 select MIPS_ASID_BITS_VARIABLE 1318 select MIPS_PGD_C0_CONTEXT 1319 select MIPS_L1_CACHE_SHIFT_6 1320 select MIPS_FP_SUPPORT 1321 select GPIOLIB 1322 select SWIOTLB 1323 select HAVE_KVM 1324 help 1325 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1326 cores implements the MIPS64R2 instruction set with many extensions, 1327 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1328 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1329 Loongson-2E/2F is not covered here and will be removed in future. 1330 1331config CPU_LOONGSON2E 1332 bool "Loongson 2E" 1333 depends on SYS_HAS_CPU_LOONGSON2E 1334 select CPU_LOONGSON2EF 1335 help 1336 The Loongson 2E processor implements the MIPS III instruction set 1337 with many extensions. 1338 1339 It has an internal FPGA northbridge, which is compatible to 1340 bonito64. 1341 1342config CPU_LOONGSON2F 1343 bool "Loongson 2F" 1344 depends on SYS_HAS_CPU_LOONGSON2F 1345 select CPU_LOONGSON2EF 1346 help 1347 The Loongson 2F processor implements the MIPS III instruction set 1348 with many extensions. 1349 1350 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1351 have a similar programming interface with FPGA northbridge used in 1352 Loongson2E. 1353 1354config CPU_LOONGSON1B 1355 bool "Loongson 1B" 1356 depends on SYS_HAS_CPU_LOONGSON1B 1357 select CPU_LOONGSON32 1358 select LEDS_GPIO_REGISTER 1359 help 1360 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1361 Release 1 instruction set and part of the MIPS32 Release 2 1362 instruction set. 1363 1364config CPU_LOONGSON1C 1365 bool "Loongson 1C" 1366 depends on SYS_HAS_CPU_LOONGSON1C 1367 select CPU_LOONGSON32 1368 select LEDS_GPIO_REGISTER 1369 help 1370 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1371 Release 1 instruction set and part of the MIPS32 Release 2 1372 instruction set. 1373 1374config CPU_MIPS32_R1 1375 bool "MIPS32 Release 1" 1376 depends on SYS_HAS_CPU_MIPS32_R1 1377 select CPU_HAS_PREFETCH 1378 select CPU_SUPPORTS_32BIT_KERNEL 1379 select CPU_SUPPORTS_HIGHMEM 1380 help 1381 Choose this option to build a kernel for release 1 or later of the 1382 MIPS32 architecture. Most modern embedded systems with a 32-bit 1383 MIPS processor are based on a MIPS32 processor. If you know the 1384 specific type of processor in your system, choose those that one 1385 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1386 Release 2 of the MIPS32 architecture is available since several 1387 years so chances are you even have a MIPS32 Release 2 processor 1388 in which case you should choose CPU_MIPS32_R2 instead for better 1389 performance. 1390 1391config CPU_MIPS32_R2 1392 bool "MIPS32 Release 2" 1393 depends on SYS_HAS_CPU_MIPS32_R2 1394 select CPU_HAS_PREFETCH 1395 select CPU_SUPPORTS_32BIT_KERNEL 1396 select CPU_SUPPORTS_HIGHMEM 1397 select CPU_SUPPORTS_MSA 1398 select HAVE_KVM 1399 help 1400 Choose this option to build a kernel for release 2 or later of the 1401 MIPS32 architecture. Most modern embedded systems with a 32-bit 1402 MIPS processor are based on a MIPS32 processor. If you know the 1403 specific type of processor in your system, choose those that one 1404 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1405 1406config CPU_MIPS32_R5 1407 bool "MIPS32 Release 5" 1408 depends on SYS_HAS_CPU_MIPS32_R5 1409 select CPU_HAS_PREFETCH 1410 select CPU_SUPPORTS_32BIT_KERNEL 1411 select CPU_SUPPORTS_HIGHMEM 1412 select CPU_SUPPORTS_MSA 1413 select HAVE_KVM 1414 select MIPS_O32_FP64_SUPPORT 1415 help 1416 Choose this option to build a kernel for release 5 or later of the 1417 MIPS32 architecture. New MIPS processors, starting with the Warrior 1418 family, are based on a MIPS32r5 processor. If you own an older 1419 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1420 1421config CPU_MIPS32_R6 1422 bool "MIPS32 Release 6" 1423 depends on SYS_HAS_CPU_MIPS32_R6 1424 select CPU_HAS_PREFETCH 1425 select CPU_NO_LOAD_STORE_LR 1426 select CPU_SUPPORTS_32BIT_KERNEL 1427 select CPU_SUPPORTS_HIGHMEM 1428 select CPU_SUPPORTS_MSA 1429 select HAVE_KVM 1430 select MIPS_O32_FP64_SUPPORT 1431 help 1432 Choose this option to build a kernel for release 6 or later of the 1433 MIPS32 architecture. New MIPS processors, starting with the Warrior 1434 family, are based on a MIPS32r6 processor. If you own an older 1435 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1436 1437config CPU_MIPS64_R1 1438 bool "MIPS64 Release 1" 1439 depends on SYS_HAS_CPU_MIPS64_R1 1440 select CPU_HAS_PREFETCH 1441 select CPU_SUPPORTS_32BIT_KERNEL 1442 select CPU_SUPPORTS_64BIT_KERNEL 1443 select CPU_SUPPORTS_HIGHMEM 1444 select CPU_SUPPORTS_HUGEPAGES 1445 help 1446 Choose this option to build a kernel for release 1 or later of the 1447 MIPS64 architecture. Many modern embedded systems with a 64-bit 1448 MIPS processor are based on a MIPS64 processor. If you know the 1449 specific type of processor in your system, choose those that one 1450 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1451 Release 2 of the MIPS64 architecture is available since several 1452 years so chances are you even have a MIPS64 Release 2 processor 1453 in which case you should choose CPU_MIPS64_R2 instead for better 1454 performance. 1455 1456config CPU_MIPS64_R2 1457 bool "MIPS64 Release 2" 1458 depends on SYS_HAS_CPU_MIPS64_R2 1459 select CPU_HAS_PREFETCH 1460 select CPU_SUPPORTS_32BIT_KERNEL 1461 select CPU_SUPPORTS_64BIT_KERNEL 1462 select CPU_SUPPORTS_HIGHMEM 1463 select CPU_SUPPORTS_HUGEPAGES 1464 select CPU_SUPPORTS_MSA 1465 select HAVE_KVM 1466 help 1467 Choose this option to build a kernel for release 2 or later of the 1468 MIPS64 architecture. Many modern embedded systems with a 64-bit 1469 MIPS processor are based on a MIPS64 processor. If you know the 1470 specific type of processor in your system, choose those that one 1471 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1472 1473config CPU_MIPS64_R5 1474 bool "MIPS64 Release 5" 1475 depends on SYS_HAS_CPU_MIPS64_R5 1476 select CPU_HAS_PREFETCH 1477 select CPU_SUPPORTS_32BIT_KERNEL 1478 select CPU_SUPPORTS_64BIT_KERNEL 1479 select CPU_SUPPORTS_HIGHMEM 1480 select CPU_SUPPORTS_HUGEPAGES 1481 select CPU_SUPPORTS_MSA 1482 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1483 select HAVE_KVM 1484 help 1485 Choose this option to build a kernel for release 5 or later of the 1486 MIPS64 architecture. This is a intermediate MIPS architecture 1487 release partly implementing release 6 features. Though there is no 1488 any hardware known to be based on this release. 1489 1490config CPU_MIPS64_R6 1491 bool "MIPS64 Release 6" 1492 depends on SYS_HAS_CPU_MIPS64_R6 1493 select CPU_HAS_PREFETCH 1494 select CPU_NO_LOAD_STORE_LR 1495 select CPU_SUPPORTS_32BIT_KERNEL 1496 select CPU_SUPPORTS_64BIT_KERNEL 1497 select CPU_SUPPORTS_HIGHMEM 1498 select CPU_SUPPORTS_HUGEPAGES 1499 select CPU_SUPPORTS_MSA 1500 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1501 select HAVE_KVM 1502 help 1503 Choose this option to build a kernel for release 6 or later of the 1504 MIPS64 architecture. New MIPS processors, starting with the Warrior 1505 family, are based on a MIPS64r6 processor. If you own an older 1506 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1507 1508config CPU_P5600 1509 bool "MIPS Warrior P5600" 1510 depends on SYS_HAS_CPU_P5600 1511 select CPU_HAS_PREFETCH 1512 select CPU_SUPPORTS_32BIT_KERNEL 1513 select CPU_SUPPORTS_HIGHMEM 1514 select CPU_SUPPORTS_MSA 1515 select CPU_SUPPORTS_CPUFREQ 1516 select CPU_MIPSR2_IRQ_VI 1517 select CPU_MIPSR2_IRQ_EI 1518 select HAVE_KVM 1519 select MIPS_O32_FP64_SUPPORT 1520 help 1521 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1522 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1523 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1524 level features like up to six P5600 calculation cores, CM2 with L2 1525 cache, IOCU/IOMMU (though might be unused depending on the system- 1526 specific IP core configuration), GIC, CPC, virtualisation module, 1527 eJTAG and PDtrace. 1528 1529config CPU_R3000 1530 bool "R3000" 1531 depends on SYS_HAS_CPU_R3000 1532 select CPU_HAS_WB 1533 select CPU_R3K_TLB 1534 select CPU_SUPPORTS_32BIT_KERNEL 1535 select CPU_SUPPORTS_HIGHMEM 1536 help 1537 Please make sure to pick the right CPU type. Linux/MIPS is not 1538 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1539 *not* work on R4000 machines and vice versa. However, since most 1540 of the supported machines have an R4000 (or similar) CPU, R4x00 1541 might be a safe bet. If the resulting kernel does not work, 1542 try to recompile with R3000. 1543 1544config CPU_R4300 1545 bool "R4300" 1546 depends on SYS_HAS_CPU_R4300 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_64BIT_KERNEL 1549 help 1550 MIPS Technologies R4300-series processors. 1551 1552config CPU_R4X00 1553 bool "R4x00" 1554 depends on SYS_HAS_CPU_R4X00 1555 select CPU_SUPPORTS_32BIT_KERNEL 1556 select CPU_SUPPORTS_64BIT_KERNEL 1557 select CPU_SUPPORTS_HUGEPAGES 1558 help 1559 MIPS Technologies R4000-series processors other than 4300, including 1560 the R4000, R4400, R4600, and 4700. 1561 1562config CPU_TX49XX 1563 bool "R49XX" 1564 depends on SYS_HAS_CPU_TX49XX 1565 select CPU_HAS_PREFETCH 1566 select CPU_SUPPORTS_32BIT_KERNEL 1567 select CPU_SUPPORTS_64BIT_KERNEL 1568 select CPU_SUPPORTS_HUGEPAGES 1569 1570config CPU_R5000 1571 bool "R5000" 1572 depends on SYS_HAS_CPU_R5000 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_64BIT_KERNEL 1575 select CPU_SUPPORTS_HUGEPAGES 1576 help 1577 MIPS Technologies R5000-series processors other than the Nevada. 1578 1579config CPU_R5500 1580 bool "R5500" 1581 depends on SYS_HAS_CPU_R5500 1582 select CPU_SUPPORTS_32BIT_KERNEL 1583 select CPU_SUPPORTS_64BIT_KERNEL 1584 select CPU_SUPPORTS_HUGEPAGES 1585 help 1586 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1587 instruction set. 1588 1589config CPU_NEVADA 1590 bool "RM52xx" 1591 depends on SYS_HAS_CPU_NEVADA 1592 select CPU_SUPPORTS_32BIT_KERNEL 1593 select CPU_SUPPORTS_64BIT_KERNEL 1594 select CPU_SUPPORTS_HUGEPAGES 1595 help 1596 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1597 1598config CPU_R10000 1599 bool "R10000" 1600 depends on SYS_HAS_CPU_R10000 1601 select CPU_HAS_PREFETCH 1602 select CPU_SUPPORTS_32BIT_KERNEL 1603 select CPU_SUPPORTS_64BIT_KERNEL 1604 select CPU_SUPPORTS_HIGHMEM 1605 select CPU_SUPPORTS_HUGEPAGES 1606 help 1607 MIPS Technologies R10000-series processors. 1608 1609config CPU_RM7000 1610 bool "RM7000" 1611 depends on SYS_HAS_CPU_RM7000 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 1618config CPU_SB1 1619 bool "SB1" 1620 depends on SYS_HAS_CPU_SB1 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_64BIT_KERNEL 1623 select CPU_SUPPORTS_HIGHMEM 1624 select CPU_SUPPORTS_HUGEPAGES 1625 select WEAK_ORDERING 1626 1627config CPU_CAVIUM_OCTEON 1628 bool "Cavium Octeon processor" 1629 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1630 select CPU_HAS_PREFETCH 1631 select CPU_SUPPORTS_64BIT_KERNEL 1632 select WEAK_ORDERING 1633 select CPU_SUPPORTS_HIGHMEM 1634 select CPU_SUPPORTS_HUGEPAGES 1635 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1636 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1637 select MIPS_L1_CACHE_SHIFT_7 1638 select HAVE_KVM 1639 help 1640 The Cavium Octeon processor is a highly integrated chip containing 1641 many ethernet hardware widgets for networking tasks. The processor 1642 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1643 Full details can be found at http://www.caviumnetworks.com. 1644 1645config CPU_BMIPS 1646 bool "Broadcom BMIPS" 1647 depends on SYS_HAS_CPU_BMIPS 1648 select CPU_MIPS32 1649 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1650 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1651 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1652 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1653 select CPU_SUPPORTS_32BIT_KERNEL 1654 select DMA_NONCOHERENT 1655 select IRQ_MIPS_CPU 1656 select SWAP_IO_SPACE 1657 select WEAK_ORDERING 1658 select CPU_SUPPORTS_HIGHMEM 1659 select CPU_HAS_PREFETCH 1660 select CPU_SUPPORTS_CPUFREQ 1661 select MIPS_EXTERNAL_TIMER 1662 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU 1663 help 1664 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1665 1666endchoice 1667 1668config LOONGSON3_ENHANCEMENT 1669 bool "New Loongson-3 CPU Enhancements" 1670 default n 1671 depends on CPU_LOONGSON64 1672 help 1673 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1674 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1675 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1676 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1677 Fast TLB refill support, etc. 1678 1679 This option enable those enhancements which are not probed at run 1680 time. If you want a generic kernel to run on all Loongson 3 machines, 1681 please say 'N' here. If you want a high-performance kernel to run on 1682 new Loongson-3 machines only, please say 'Y' here. 1683 1684config CPU_LOONGSON3_WORKAROUNDS 1685 bool "Loongson-3 LLSC Workarounds" 1686 default y if SMP 1687 depends on CPU_LOONGSON64 1688 help 1689 Loongson-3 processors have the llsc issues which require workarounds. 1690 Without workarounds the system may hang unexpectedly. 1691 1692 Say Y, unless you know what you are doing. 1693 1694config CPU_LOONGSON3_CPUCFG_EMULATION 1695 bool "Emulate the CPUCFG instruction on older Loongson cores" 1696 default y 1697 depends on CPU_LOONGSON64 1698 help 1699 Loongson-3A R4 and newer have the CPUCFG instruction available for 1700 userland to query CPU capabilities, much like CPUID on x86. This 1701 option provides emulation of the instruction on older Loongson 1702 cores, back to Loongson-3A1000. 1703 1704 If unsure, please say Y. 1705 1706config CPU_MIPS32_3_5_FEATURES 1707 bool "MIPS32 Release 3.5 Features" 1708 depends on SYS_HAS_CPU_MIPS32_R3_5 1709 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1710 CPU_P5600 1711 help 1712 Choose this option to build a kernel for release 2 or later of the 1713 MIPS32 architecture including features from the 3.5 release such as 1714 support for Enhanced Virtual Addressing (EVA). 1715 1716config CPU_MIPS32_3_5_EVA 1717 bool "Enhanced Virtual Addressing (EVA)" 1718 depends on CPU_MIPS32_3_5_FEATURES 1719 select EVA 1720 default y 1721 help 1722 Choose this option if you want to enable the Enhanced Virtual 1723 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1724 One of its primary benefits is an increase in the maximum size 1725 of lowmem (up to 3GB). If unsure, say 'N' here. 1726 1727config CPU_MIPS32_R5_FEATURES 1728 bool "MIPS32 Release 5 Features" 1729 depends on SYS_HAS_CPU_MIPS32_R5 1730 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1731 help 1732 Choose this option to build a kernel for release 2 or later of the 1733 MIPS32 architecture including features from release 5 such as 1734 support for Extended Physical Addressing (XPA). 1735 1736config CPU_MIPS32_R5_XPA 1737 bool "Extended Physical Addressing (XPA)" 1738 depends on CPU_MIPS32_R5_FEATURES 1739 depends on !EVA 1740 depends on !PAGE_SIZE_4KB 1741 depends on SYS_SUPPORTS_HIGHMEM 1742 select XPA 1743 select HIGHMEM 1744 select PHYS_ADDR_T_64BIT 1745 default n 1746 help 1747 Choose this option if you want to enable the Extended Physical 1748 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1749 benefit is to increase physical addressing equal to or greater 1750 than 40 bits. Note that this has the side effect of turning on 1751 64-bit addressing which in turn makes the PTEs 64-bit in size. 1752 If unsure, say 'N' here. 1753 1754if CPU_LOONGSON2F 1755config CPU_NOP_WORKAROUNDS 1756 bool 1757 1758config CPU_JUMP_WORKAROUNDS 1759 bool 1760 1761config CPU_LOONGSON2F_WORKAROUNDS 1762 bool "Loongson 2F Workarounds" 1763 default y 1764 select CPU_NOP_WORKAROUNDS 1765 select CPU_JUMP_WORKAROUNDS 1766 help 1767 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1768 require workarounds. Without workarounds the system may hang 1769 unexpectedly. For more information please refer to the gas 1770 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1771 1772 Loongson 2F03 and later have fixed these issues and no workarounds 1773 are needed. The workarounds have no significant side effect on them 1774 but may decrease the performance of the system so this option should 1775 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1776 systems. 1777 1778 If unsure, please say Y. 1779endif # CPU_LOONGSON2F 1780 1781config SYS_SUPPORTS_ZBOOT 1782 bool 1783 select HAVE_KERNEL_GZIP 1784 select HAVE_KERNEL_BZIP2 1785 select HAVE_KERNEL_LZ4 1786 select HAVE_KERNEL_LZMA 1787 select HAVE_KERNEL_LZO 1788 select HAVE_KERNEL_XZ 1789 select HAVE_KERNEL_ZSTD 1790 1791config SYS_SUPPORTS_ZBOOT_UART16550 1792 bool 1793 select SYS_SUPPORTS_ZBOOT 1794 1795config SYS_SUPPORTS_ZBOOT_UART_PROM 1796 bool 1797 select SYS_SUPPORTS_ZBOOT 1798 1799config CPU_LOONGSON2EF 1800 bool 1801 select CPU_SUPPORTS_32BIT_KERNEL 1802 select CPU_SUPPORTS_64BIT_KERNEL 1803 select CPU_SUPPORTS_HIGHMEM 1804 select CPU_SUPPORTS_HUGEPAGES 1805 1806config CPU_LOONGSON32 1807 bool 1808 select CPU_MIPS32 1809 select CPU_MIPSR2 1810 select CPU_HAS_PREFETCH 1811 select CPU_SUPPORTS_32BIT_KERNEL 1812 select CPU_SUPPORTS_HIGHMEM 1813 select CPU_SUPPORTS_CPUFREQ 1814 1815config CPU_BMIPS32_3300 1816 select SMP_UP if SMP 1817 bool 1818 1819config CPU_BMIPS4350 1820 bool 1821 select SYS_SUPPORTS_SMP 1822 select SYS_SUPPORTS_HOTPLUG_CPU 1823 1824config CPU_BMIPS4380 1825 bool 1826 select MIPS_L1_CACHE_SHIFT_6 1827 select SYS_SUPPORTS_SMP 1828 select SYS_SUPPORTS_HOTPLUG_CPU 1829 select CPU_HAS_RIXI 1830 1831config CPU_BMIPS5000 1832 bool 1833 select MIPS_CPU_SCACHE 1834 select MIPS_L1_CACHE_SHIFT_7 1835 select SYS_SUPPORTS_SMP 1836 select SYS_SUPPORTS_HOTPLUG_CPU 1837 select CPU_HAS_RIXI 1838 1839config SYS_HAS_CPU_LOONGSON64 1840 bool 1841 select CPU_SUPPORTS_CPUFREQ 1842 select CPU_HAS_RIXI 1843 1844config SYS_HAS_CPU_LOONGSON2E 1845 bool 1846 1847config SYS_HAS_CPU_LOONGSON2F 1848 bool 1849 select CPU_SUPPORTS_CPUFREQ 1850 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1851 1852config SYS_HAS_CPU_LOONGSON1B 1853 bool 1854 1855config SYS_HAS_CPU_LOONGSON1C 1856 bool 1857 1858config SYS_HAS_CPU_MIPS32_R1 1859 bool 1860 1861config SYS_HAS_CPU_MIPS32_R2 1862 bool 1863 1864config SYS_HAS_CPU_MIPS32_R3_5 1865 bool 1866 1867config SYS_HAS_CPU_MIPS32_R5 1868 bool 1869 1870config SYS_HAS_CPU_MIPS32_R6 1871 bool 1872 1873config SYS_HAS_CPU_MIPS64_R1 1874 bool 1875 1876config SYS_HAS_CPU_MIPS64_R2 1877 bool 1878 1879config SYS_HAS_CPU_MIPS64_R5 1880 bool 1881 1882config SYS_HAS_CPU_MIPS64_R6 1883 bool 1884 1885config SYS_HAS_CPU_P5600 1886 bool 1887 1888config SYS_HAS_CPU_R3000 1889 bool 1890 1891config SYS_HAS_CPU_R4300 1892 bool 1893 1894config SYS_HAS_CPU_R4X00 1895 bool 1896 1897config SYS_HAS_CPU_TX49XX 1898 bool 1899 1900config SYS_HAS_CPU_R5000 1901 bool 1902 1903config SYS_HAS_CPU_R5500 1904 bool 1905 1906config SYS_HAS_CPU_NEVADA 1907 bool 1908 1909config SYS_HAS_CPU_R10000 1910 bool 1911 1912config SYS_HAS_CPU_RM7000 1913 bool 1914 1915config SYS_HAS_CPU_SB1 1916 bool 1917 1918config SYS_HAS_CPU_CAVIUM_OCTEON 1919 bool 1920 1921config SYS_HAS_CPU_BMIPS 1922 bool 1923 1924config SYS_HAS_CPU_BMIPS32_3300 1925 bool 1926 select SYS_HAS_CPU_BMIPS 1927 1928config SYS_HAS_CPU_BMIPS4350 1929 bool 1930 select SYS_HAS_CPU_BMIPS 1931 1932config SYS_HAS_CPU_BMIPS4380 1933 bool 1934 select SYS_HAS_CPU_BMIPS 1935 1936config SYS_HAS_CPU_BMIPS5000 1937 bool 1938 select SYS_HAS_CPU_BMIPS 1939 1940# 1941# CPU may reorder R->R, R->W, W->R, W->W 1942# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1943# 1944config WEAK_ORDERING 1945 bool 1946 1947# 1948# CPU may reorder reads and writes beyond LL/SC 1949# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1950# 1951config WEAK_REORDERING_BEYOND_LLSC 1952 bool 1953endmenu 1954 1955# 1956# These two indicate any level of the MIPS32 and MIPS64 architecture 1957# 1958config CPU_MIPS32 1959 bool 1960 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 1961 CPU_MIPS32_R6 || CPU_P5600 1962 1963config CPU_MIPS64 1964 bool 1965 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 1966 CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON 1967 1968# 1969# These indicate the revision of the architecture 1970# 1971config CPU_MIPSR1 1972 bool 1973 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1974 1975config CPU_MIPSR2 1976 bool 1977 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1978 select CPU_HAS_RIXI 1979 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 1980 select MIPS_SPRAM 1981 1982config CPU_MIPSR5 1983 bool 1984 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 1985 select CPU_HAS_RIXI 1986 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 1987 select MIPS_SPRAM 1988 1989config CPU_MIPSR6 1990 bool 1991 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 1992 select CPU_HAS_RIXI 1993 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 1994 select HAVE_ARCH_BITREVERSE 1995 select MIPS_ASID_BITS_VARIABLE 1996 select MIPS_CRC_SUPPORT 1997 select MIPS_SPRAM 1998 1999config TARGET_ISA_REV 2000 int 2001 default 1 if CPU_MIPSR1 2002 default 2 if CPU_MIPSR2 2003 default 5 if CPU_MIPSR5 2004 default 6 if CPU_MIPSR6 2005 default 0 2006 help 2007 Reflects the ISA revision being targeted by the kernel build. This 2008 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2009 2010config EVA 2011 bool 2012 2013config XPA 2014 bool 2015 2016config SYS_SUPPORTS_32BIT_KERNEL 2017 bool 2018config SYS_SUPPORTS_64BIT_KERNEL 2019 bool 2020config CPU_SUPPORTS_32BIT_KERNEL 2021 bool 2022config CPU_SUPPORTS_64BIT_KERNEL 2023 bool 2024config CPU_SUPPORTS_CPUFREQ 2025 bool 2026config CPU_SUPPORTS_ADDRWINCFG 2027 bool 2028config CPU_SUPPORTS_HUGEPAGES 2029 bool 2030 depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA)) 2031config MIPS_PGD_C0_CONTEXT 2032 bool 2033 depends on 64BIT 2034 default y if (CPU_MIPSR2 || CPU_MIPSR6) 2035 2036# 2037# Set to y for ptrace access to watch registers. 2038# 2039config HARDWARE_WATCHPOINTS 2040 bool 2041 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2042 2043menu "Kernel type" 2044 2045choice 2046 prompt "Kernel code model" 2047 help 2048 You should only select this option if you have a workload that 2049 actually benefits from 64-bit processing or if your machine has 2050 large memory. You will only be presented a single option in this 2051 menu if your system does not support both 32-bit and 64-bit kernels. 2052 2053config 32BIT 2054 bool "32-bit kernel" 2055 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2056 select TRAD_SIGNALS 2057 help 2058 Select this option if you want to build a 32-bit kernel. 2059 2060config 64BIT 2061 bool "64-bit kernel" 2062 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2063 help 2064 Select this option if you want to build a 64-bit kernel. 2065 2066endchoice 2067 2068config MIPS_VA_BITS_48 2069 bool "48 bits virtual memory" 2070 depends on 64BIT 2071 help 2072 Support a maximum at least 48 bits of application virtual 2073 memory. Default is 40 bits or less, depending on the CPU. 2074 For page sizes 16k and above, this option results in a small 2075 memory overhead for page tables. For 4k page size, a fourth 2076 level of page tables is added which imposes both a memory 2077 overhead as well as slower TLB fault handling. 2078 2079 If unsure, say N. 2080 2081config ZBOOT_LOAD_ADDRESS 2082 hex "Compressed kernel load address" 2083 default 0xffffffff80400000 if BCM47XX 2084 default 0x0 2085 depends on SYS_SUPPORTS_ZBOOT 2086 help 2087 The address to load compressed kernel, aka vmlinuz. 2088 2089 This is only used if non-zero. 2090 2091choice 2092 prompt "Kernel page size" 2093 default PAGE_SIZE_4KB 2094 2095config PAGE_SIZE_4KB 2096 bool "4kB" 2097 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2098 help 2099 This option select the standard 4kB Linux page size. On some 2100 R3000-family processors this is the only available page size. Using 2101 4kB page size will minimize memory consumption and is therefore 2102 recommended for low memory systems. 2103 2104config PAGE_SIZE_8KB 2105 bool "8kB" 2106 depends on CPU_CAVIUM_OCTEON 2107 depends on !MIPS_VA_BITS_48 2108 help 2109 Using 8kB page size will result in higher performance kernel at 2110 the price of higher memory consumption. This option is available 2111 only on cnMIPS processors. Note that you will need a suitable Linux 2112 distribution to support this. 2113 2114config PAGE_SIZE_16KB 2115 bool "16kB" 2116 depends on !CPU_R3000 2117 help 2118 Using 16kB page size will result in higher performance kernel at 2119 the price of higher memory consumption. This option is available on 2120 all non-R3000 family processors. Note that you will need a suitable 2121 Linux distribution to support this. 2122 2123config PAGE_SIZE_32KB 2124 bool "32kB" 2125 depends on CPU_CAVIUM_OCTEON 2126 depends on !MIPS_VA_BITS_48 2127 help 2128 Using 32kB page size will result in higher performance kernel at 2129 the price of higher memory consumption. This option is available 2130 only on cnMIPS cores. Note that you will need a suitable Linux 2131 distribution to support this. 2132 2133config PAGE_SIZE_64KB 2134 bool "64kB" 2135 depends on !CPU_R3000 2136 help 2137 Using 64kB page size will result in higher performance kernel at 2138 the price of higher memory consumption. This option is available on 2139 all non-R3000 family processor. Not that at the time of this 2140 writing this option is still high experimental. 2141 2142endchoice 2143 2144config ARCH_FORCE_MAX_ORDER 2145 int "Maximum zone order" 2146 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2147 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2148 default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2149 default "10" 2150 help 2151 The kernel memory allocator divides physically contiguous memory 2152 blocks into "zones", where each zone is a power of two number of 2153 pages. This option selects the largest power of two that the kernel 2154 keeps in the memory allocator. If you need to allocate very large 2155 blocks of physically contiguous memory, then you may need to 2156 increase this value. 2157 2158 The page size is not necessarily 4KB. Keep this in mind 2159 when choosing a value for this option. 2160 2161config BOARD_SCACHE 2162 bool 2163 2164config IP22_CPU_SCACHE 2165 bool 2166 select BOARD_SCACHE 2167 2168# 2169# Support for a MIPS32 / MIPS64 style S-caches 2170# 2171config MIPS_CPU_SCACHE 2172 bool 2173 select BOARD_SCACHE 2174 2175config R5000_CPU_SCACHE 2176 bool 2177 select BOARD_SCACHE 2178 2179config RM7000_CPU_SCACHE 2180 bool 2181 select BOARD_SCACHE 2182 2183config SIBYTE_DMA_PAGEOPS 2184 bool "Use DMA to clear/copy pages" 2185 depends on CPU_SB1 2186 help 2187 Instead of using the CPU to zero and copy pages, use a Data Mover 2188 channel. These DMA channels are otherwise unused by the standard 2189 SiByte Linux port. Seems to give a small performance benefit. 2190 2191config CPU_HAS_PREFETCH 2192 bool 2193 2194config CPU_GENERIC_DUMP_TLB 2195 bool 2196 default y if !CPU_R3000 2197 2198config MIPS_FP_SUPPORT 2199 bool "Floating Point support" if EXPERT 2200 default y 2201 help 2202 Select y to include support for floating point in the kernel 2203 including initialization of FPU hardware, FP context save & restore 2204 and emulation of an FPU where necessary. Without this support any 2205 userland program attempting to use floating point instructions will 2206 receive a SIGILL. 2207 2208 If you know that your userland will not attempt to use floating point 2209 instructions then you can say n here to shrink the kernel a little. 2210 2211 If unsure, say y. 2212 2213config CPU_R2300_FPU 2214 bool 2215 depends on MIPS_FP_SUPPORT 2216 default y if CPU_R3000 2217 2218config CPU_R3K_TLB 2219 bool 2220 2221config CPU_R4K_FPU 2222 bool 2223 depends on MIPS_FP_SUPPORT 2224 default y if !CPU_R2300_FPU 2225 2226config CPU_R4K_CACHE_TLB 2227 bool 2228 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2229 2230config MIPS_MT_SMP 2231 bool "MIPS MT SMP support (1 TC on each available VPE)" 2232 default y 2233 depends on TARGET_ISA_REV > 0 && TARGET_ISA_REV < 6 2234 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MICROMIPS 2235 select CPU_MIPSR2_IRQ_VI 2236 select CPU_MIPSR2_IRQ_EI 2237 select SYNC_R4K 2238 select MIPS_MT 2239 select SMP 2240 select SMP_UP 2241 select SYS_SUPPORTS_SMP 2242 select SYS_SUPPORTS_SCHED_SMT 2243 select MIPS_PERF_SHARED_TC_COUNTERS 2244 help 2245 This is a kernel model which is known as SMVP. This is supported 2246 on cores with the MT ASE and uses the available VPEs to implement 2247 virtual processors which supports SMP. This is equivalent to the 2248 Intel Hyperthreading feature. For further information go to 2249 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2250 2251config MIPS_MT 2252 bool 2253 2254config SCHED_SMT 2255 bool "SMT (multithreading) scheduler support" 2256 depends on SYS_SUPPORTS_SCHED_SMT 2257 default n 2258 help 2259 SMT scheduler support improves the CPU scheduler's decision making 2260 when dealing with MIPS MT enabled cores at a cost of slightly 2261 increased overhead in some places. If unsure say N here. 2262 2263config SYS_SUPPORTS_SCHED_SMT 2264 bool 2265 2266config SYS_SUPPORTS_MULTITHREADING 2267 bool 2268 2269config MIPS_MT_FPAFF 2270 bool "Dynamic FPU affinity for FP-intensive threads" 2271 default y 2272 depends on MIPS_MT_SMP 2273 2274config MIPSR2_TO_R6_EMULATOR 2275 bool "MIPS R2-to-R6 emulator" 2276 depends on CPU_MIPSR6 2277 depends on MIPS_FP_SUPPORT 2278 default y 2279 help 2280 Choose this option if you want to run non-R6 MIPS userland code. 2281 Even if you say 'Y' here, the emulator will still be disabled by 2282 default. You can enable it using the 'mipsr2emu' kernel option. 2283 The only reason this is a build-time option is to save ~14K from the 2284 final kernel image. 2285 2286config SYS_SUPPORTS_VPE_LOADER 2287 bool 2288 depends on SYS_SUPPORTS_MULTITHREADING 2289 help 2290 Indicates that the platform supports the VPE loader, and provides 2291 physical_memsize. 2292 2293config MIPS_VPE_LOADER 2294 bool "VPE loader support." 2295 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2296 select CPU_MIPSR2_IRQ_VI 2297 select CPU_MIPSR2_IRQ_EI 2298 select MIPS_MT 2299 help 2300 Includes a loader for loading an elf relocatable object 2301 onto another VPE and running it. 2302 2303config MIPS_VPE_LOADER_MT 2304 bool 2305 default "y" 2306 depends on MIPS_VPE_LOADER 2307 2308config MIPS_VPE_LOADER_TOM 2309 bool "Load VPE program into memory hidden from linux" 2310 depends on MIPS_VPE_LOADER 2311 default y 2312 help 2313 The loader can use memory that is present but has been hidden from 2314 Linux using the kernel command line option "mem=xxMB". It's up to 2315 you to ensure the amount you put in the option and the space your 2316 program requires is less or equal to the amount physically present. 2317 2318config MIPS_VPE_APSP_API 2319 bool "Enable support for AP/SP API (RTLX)" 2320 depends on MIPS_VPE_LOADER 2321 2322config MIPS_VPE_APSP_API_MT 2323 bool 2324 default "y" 2325 depends on MIPS_VPE_APSP_API 2326 2327config MIPS_CPS 2328 bool "MIPS Coherent Processing System support" 2329 depends on SYS_SUPPORTS_MIPS_CPS 2330 select MIPS_CM 2331 select MIPS_CPS_PM if HOTPLUG_CPU 2332 select SMP 2333 select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU 2334 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2335 select SYS_SUPPORTS_HOTPLUG_CPU 2336 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2337 select SYS_SUPPORTS_SMP 2338 select WEAK_ORDERING 2339 select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU 2340 help 2341 Select this if you wish to run an SMP kernel across multiple cores 2342 within a MIPS Coherent Processing System. When this option is 2343 enabled the kernel will probe for other cores and boot them with 2344 no external assistance. It is safe to enable this when hardware 2345 support is unavailable. 2346 2347config MIPS_CPS_PM 2348 depends on MIPS_CPS 2349 bool 2350 2351config MIPS_CM 2352 bool 2353 select MIPS_CPC 2354 2355config MIPS_CPC 2356 bool 2357 2358config SB1_PASS_2_WORKAROUNDS 2359 bool 2360 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2361 default y 2362 2363config SB1_PASS_2_1_WORKAROUNDS 2364 bool 2365 depends on CPU_SB1 && CPU_SB1_PASS_2 2366 default y 2367 2368choice 2369 prompt "SmartMIPS or microMIPS ASE support" 2370 2371config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2372 bool "None" 2373 help 2374 Select this if you want neither microMIPS nor SmartMIPS support 2375 2376config CPU_HAS_SMARTMIPS 2377 depends on SYS_SUPPORTS_SMARTMIPS 2378 bool "SmartMIPS" 2379 help 2380 SmartMIPS is a extension of the MIPS32 architecture aimed at 2381 increased security at both hardware and software level for 2382 smartcards. Enabling this option will allow proper use of the 2383 SmartMIPS instructions by Linux applications. However a kernel with 2384 this option will not work on a MIPS core without SmartMIPS core. If 2385 you don't know you probably don't have SmartMIPS and should say N 2386 here. 2387 2388config CPU_MICROMIPS 2389 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2390 bool "microMIPS" 2391 help 2392 When this option is enabled the kernel will be built using the 2393 microMIPS ISA 2394 2395endchoice 2396 2397config CPU_HAS_MSA 2398 bool "Support for the MIPS SIMD Architecture" 2399 depends on CPU_SUPPORTS_MSA 2400 depends on MIPS_FP_SUPPORT 2401 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2402 help 2403 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2404 and a set of SIMD instructions to operate on them. When this option 2405 is enabled the kernel will support allocating & switching MSA 2406 vector register contexts. If you know that your kernel will only be 2407 running on CPUs which do not support MSA or that your userland will 2408 not be making use of it then you may wish to say N here to reduce 2409 the size & complexity of your kernel. 2410 2411 If unsure, say Y. 2412 2413config CPU_HAS_WB 2414 bool 2415 2416config XKS01 2417 bool 2418 2419config CPU_HAS_DIEI 2420 depends on !CPU_DIEI_BROKEN 2421 bool 2422 2423config CPU_DIEI_BROKEN 2424 bool 2425 2426config CPU_HAS_RIXI 2427 bool 2428 2429config CPU_NO_LOAD_STORE_LR 2430 bool 2431 help 2432 CPU lacks support for unaligned load and store instructions: 2433 LWL, LWR, SWL, SWR (Load/store word left/right). 2434 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2435 systems). 2436 2437# 2438# Vectored interrupt mode is an R2 feature 2439# 2440config CPU_MIPSR2_IRQ_VI 2441 bool 2442 2443# 2444# Extended interrupt mode is an R2 feature 2445# 2446config CPU_MIPSR2_IRQ_EI 2447 bool 2448 2449config CPU_HAS_SYNC 2450 bool 2451 depends on !CPU_R3000 2452 default y 2453 2454# 2455# CPU non-features 2456# 2457 2458# Work around the "daddi" and "daddiu" CPU errata: 2459# 2460# - The `daddi' instruction fails to trap on overflow. 2461# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", 2462# erratum #23 2463# 2464# - The `daddiu' instruction can produce an incorrect result. 2465# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", 2466# erratum #41 2467# "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum 2468# #15 2469# "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7 2470# "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5 2471config CPU_DADDI_WORKAROUNDS 2472 bool 2473 2474# Work around certain R4000 CPU errata (as implemented by GCC): 2475# 2476# - A double-word or a variable shift may give an incorrect result 2477# if executed immediately after starting an integer division: 2478# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", 2479# erratum #28 2480# "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum 2481# #19 2482# 2483# - A double-word or a variable shift may give an incorrect result 2484# if executed while an integer multiplication is in progress: 2485# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", 2486# errata #16 & #28 2487# 2488# - An integer division may give an incorrect result if started in 2489# a delay slot of a taken branch or a jump: 2490# "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", 2491# erratum #52 2492config CPU_R4000_WORKAROUNDS 2493 bool 2494 select CPU_R4400_WORKAROUNDS 2495 2496# Work around certain R4400 CPU errata (as implemented by GCC): 2497# 2498# - A double-word or a variable shift may give an incorrect result 2499# if executed immediately after starting an integer division: 2500# "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10 2501# "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4 2502config CPU_R4400_WORKAROUNDS 2503 bool 2504 2505config CPU_R4X00_BUGS64 2506 bool 2507 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2508 2509config MIPS_ASID_SHIFT 2510 int 2511 default 6 if CPU_R3000 2512 default 0 2513 2514config MIPS_ASID_BITS 2515 int 2516 default 0 if MIPS_ASID_BITS_VARIABLE 2517 default 6 if CPU_R3000 2518 default 8 2519 2520config MIPS_ASID_BITS_VARIABLE 2521 bool 2522 2523config MIPS_CRC_SUPPORT 2524 bool 2525 2526# R4600 erratum. Due to the lack of errata information the exact 2527# technical details aren't known. I've experimentally found that disabling 2528# interrupts during indexed I-cache flushes seems to be sufficient to deal 2529# with the issue. 2530config WAR_R4600_V1_INDEX_ICACHEOP 2531 bool 2532 2533# Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata: 2534# 2535# 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D, 2536# Hit_Invalidate_D and Create_Dirty_Excl_D should only be 2537# executed if there is no other dcache activity. If the dcache is 2538# accessed for another instruction immediately preceding when these 2539# cache instructions are executing, it is possible that the dcache 2540# tag match outputs used by these cache instructions will be 2541# incorrect. These cache instructions should be preceded by at least 2542# four instructions that are not any kind of load or store 2543# instruction. 2544# 2545# This is not allowed: lw 2546# nop 2547# nop 2548# nop 2549# cache Hit_Writeback_Invalidate_D 2550# 2551# This is allowed: lw 2552# nop 2553# nop 2554# nop 2555# nop 2556# cache Hit_Writeback_Invalidate_D 2557config WAR_R4600_V1_HIT_CACHEOP 2558 bool 2559 2560# Writeback and invalidate the primary cache dcache before DMA. 2561# 2562# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D, 2563# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only 2564# operate correctly if the internal data cache refill buffer is empty. These 2565# CACHE instructions should be separated from any potential data cache miss 2566# by a load instruction to an uncached address to empty the response buffer." 2567# (Revision 2.0 device errata from IDT available on https://www.idt.com/ 2568# in .pdf format.) 2569config WAR_R4600_V2_HIT_CACHEOP 2570 bool 2571 2572# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for 2573# the line which this instruction itself exists, the following 2574# operation is not guaranteed." 2575# 2576# Workaround: do two phase flushing for Index_Invalidate_I 2577config WAR_TX49XX_ICACHE_INDEX_INV 2578 bool 2579 2580# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra 2581# opposes it being called that) where invalid instructions in the same 2582# I-cache line worth of instructions being fetched may case spurious 2583# exceptions. 2584config WAR_ICACHE_REFILLS 2585 bool 2586 2587# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that 2588# may cause ll / sc and lld / scd sequences to execute non-atomically. 2589config WAR_R10000_LLSC 2590 bool 2591 2592# 34K core erratum: "Problems Executing the TLBR Instruction" 2593config WAR_MIPS34K_MISSED_ITLB 2594 bool 2595 2596# 2597# - Highmem only makes sense for the 32-bit kernel. 2598# - The current highmem code will only work properly on physically indexed 2599# caches such as R3000, SB1, R7000 or those that look like they're virtually 2600# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2601# moment we protect the user and offer the highmem option only on machines 2602# where it's known to be safe. This will not offer highmem on a few systems 2603# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2604# indexed CPUs but we're playing safe. 2605# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2606# know they might have memory configurations that could make use of highmem 2607# support. 2608# 2609config HIGHMEM 2610 bool "High Memory Support" 2611 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2612 select KMAP_LOCAL 2613 2614config CPU_SUPPORTS_HIGHMEM 2615 bool 2616 2617config SYS_SUPPORTS_HIGHMEM 2618 bool 2619 2620config SYS_SUPPORTS_SMARTMIPS 2621 bool 2622 2623config SYS_SUPPORTS_MICROMIPS 2624 bool 2625 2626config SYS_SUPPORTS_MIPS16 2627 bool 2628 help 2629 This option must be set if a kernel might be executed on a MIPS16- 2630 enabled CPU even if MIPS16 is not actually being used. In other 2631 words, it makes the kernel MIPS16-tolerant. 2632 2633config CPU_SUPPORTS_MSA 2634 bool 2635 2636config ARCH_FLATMEM_ENABLE 2637 def_bool y 2638 depends on !NUMA && !CPU_LOONGSON2EF 2639 2640config ARCH_SPARSEMEM_ENABLE 2641 bool 2642 2643config NUMA 2644 bool "NUMA Support" 2645 depends on SYS_SUPPORTS_NUMA 2646 select SMP 2647 select HAVE_SETUP_PER_CPU_AREA 2648 select NEED_PER_CPU_EMBED_FIRST_CHUNK 2649 help 2650 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2651 Access). This option improves performance on systems with more 2652 than two nodes; on two node systems it is generally better to 2653 leave it disabled; on single node systems leave this option 2654 disabled. 2655 2656config SYS_SUPPORTS_NUMA 2657 bool 2658 2659config HAVE_ARCH_NODEDATA_EXTENSION 2660 bool 2661 2662config RELOCATABLE 2663 bool "Relocatable kernel" 2664 depends on SYS_SUPPORTS_RELOCATABLE 2665 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2666 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2667 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2668 CPU_P5600 || CAVIUM_OCTEON_SOC || \ 2669 CPU_LOONGSON64 2670 help 2671 This builds a kernel image that retains relocation information 2672 so it can be loaded someplace besides the default 1MB. 2673 The relocations make the kernel binary about 15% larger, 2674 but are discarded at runtime 2675 2676config RELOCATION_TABLE_SIZE 2677 hex "Relocation table size" 2678 depends on RELOCATABLE 2679 range 0x0 0x01000000 2680 default "0x00200000" if CPU_LOONGSON64 2681 default "0x00100000" 2682 help 2683 A table of relocation data will be appended to the kernel binary 2684 and parsed at boot to fix up the relocated kernel. 2685 2686 This option allows the amount of space reserved for the table to be 2687 adjusted, although the default of 1Mb should be ok in most cases. 2688 2689 The build will fail and a valid size suggested if this is too small. 2690 2691 If unsure, leave at the default value. 2692 2693config RANDOMIZE_BASE 2694 bool "Randomize the address of the kernel image" 2695 depends on RELOCATABLE 2696 help 2697 Randomizes the physical and virtual address at which the 2698 kernel image is loaded, as a security feature that 2699 deters exploit attempts relying on knowledge of the location 2700 of kernel internals. 2701 2702 Entropy is generated using any coprocessor 0 registers available. 2703 2704 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2705 2706 If unsure, say N. 2707 2708config RANDOMIZE_BASE_MAX_OFFSET 2709 hex "Maximum kASLR offset" if EXPERT 2710 depends on RANDOMIZE_BASE 2711 range 0x0 0x40000000 if EVA || 64BIT 2712 range 0x0 0x08000000 2713 default "0x01000000" 2714 help 2715 When kASLR is active, this provides the maximum offset that will 2716 be applied to the kernel image. It should be set according to the 2717 amount of physical RAM available in the target system minus 2718 PHYSICAL_START and must be a power of 2. 2719 2720 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2721 EVA or 64-bit. The default is 16Mb. 2722 2723config NODES_SHIFT 2724 int 2725 default "6" 2726 depends on NUMA 2727 2728config HW_PERF_EVENTS 2729 bool "Enable hardware performance counter support for perf events" 2730 depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64) 2731 default y 2732 help 2733 Enable hardware performance counter support for perf events. If 2734 disabled, perf events will use software events only. 2735 2736config DMI 2737 bool "Enable DMI scanning" 2738 depends on MACH_LOONGSON64 2739 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2740 default y 2741 help 2742 Enabled scanning of DMI to identify machine quirks. Say Y 2743 here unless you have verified that your setup is not 2744 affected by entries in the DMI blacklist. Required by PNP 2745 BIOS code. 2746 2747config SMP 2748 bool "Multi-Processing support" 2749 depends on SYS_SUPPORTS_SMP 2750 help 2751 This enables support for systems with more than one CPU. If you have 2752 a system with only one CPU, say N. If you have a system with more 2753 than one CPU, say Y. 2754 2755 If you say N here, the kernel will run on uni- and multiprocessor 2756 machines, but will use only one CPU of a multiprocessor machine. If 2757 you say Y here, the kernel will run on many, but not all, 2758 uniprocessor machines. On a uniprocessor machine, the kernel 2759 will run faster if you say N here. 2760 2761 People using multiprocessor machines who say Y here should also say 2762 Y to "Enhanced Real Time Clock Support", below. 2763 2764 See also the SMP-HOWTO available at 2765 <https://www.tldp.org/docs.html#howto>. 2766 2767 If you don't know what to do here, say N. 2768 2769config HOTPLUG_CPU 2770 bool "Support for hot-pluggable CPUs" 2771 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2772 help 2773 Say Y here to allow turning CPUs off and on. CPUs can be 2774 controlled through /sys/devices/system/cpu. 2775 (Note: power management support will enable this option 2776 automatically on SMP systems. ) 2777 Say N if you want to disable CPU hotplug. 2778 2779config SMP_UP 2780 bool 2781 2782config SYS_SUPPORTS_MIPS_CPS 2783 bool 2784 2785config SYS_SUPPORTS_SMP 2786 bool 2787 2788config NR_CPUS_DEFAULT_4 2789 bool 2790 2791config NR_CPUS_DEFAULT_8 2792 bool 2793 2794config NR_CPUS_DEFAULT_16 2795 bool 2796 2797config NR_CPUS_DEFAULT_32 2798 bool 2799 2800config NR_CPUS_DEFAULT_64 2801 bool 2802 2803config NR_CPUS 2804 int "Maximum number of CPUs (2-256)" 2805 range 2 256 2806 depends on SMP 2807 default "4" if NR_CPUS_DEFAULT_4 2808 default "8" if NR_CPUS_DEFAULT_8 2809 default "16" if NR_CPUS_DEFAULT_16 2810 default "32" if NR_CPUS_DEFAULT_32 2811 default "64" if NR_CPUS_DEFAULT_64 2812 help 2813 This allows you to specify the maximum number of CPUs which this 2814 kernel will support. The maximum supported value is 32 for 32-bit 2815 kernel and 64 for 64-bit kernels; the minimum value which makes 2816 sense is 1 for Qemu (useful only for kernel debugging purposes) 2817 and 2 for all others. 2818 2819 This is purely to save memory - each supported CPU adds 2820 approximately eight kilobytes to the kernel image. For best 2821 performance should round up your number of processors to the next 2822 power of two. 2823 2824config MIPS_PERF_SHARED_TC_COUNTERS 2825 bool 2826 2827config MIPS_NR_CPU_NR_MAP_1024 2828 bool 2829 2830config MIPS_NR_CPU_NR_MAP 2831 int 2832 depends on SMP 2833 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2834 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2835 2836# 2837# Timer Interrupt Frequency Configuration 2838# 2839 2840choice 2841 prompt "Timer frequency" 2842 default HZ_250 2843 help 2844 Allows the configuration of the timer frequency. 2845 2846 config HZ_24 2847 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2848 2849 config HZ_48 2850 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2851 2852 config HZ_100 2853 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2854 2855 config HZ_128 2856 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2857 2858 config HZ_250 2859 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2860 2861 config HZ_256 2862 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2863 2864 config HZ_1000 2865 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2866 2867 config HZ_1024 2868 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2869 2870endchoice 2871 2872config SYS_SUPPORTS_24HZ 2873 bool 2874 2875config SYS_SUPPORTS_48HZ 2876 bool 2877 2878config SYS_SUPPORTS_100HZ 2879 bool 2880 2881config SYS_SUPPORTS_128HZ 2882 bool 2883 2884config SYS_SUPPORTS_250HZ 2885 bool 2886 2887config SYS_SUPPORTS_256HZ 2888 bool 2889 2890config SYS_SUPPORTS_1000HZ 2891 bool 2892 2893config SYS_SUPPORTS_1024HZ 2894 bool 2895 2896config SYS_SUPPORTS_ARBIT_HZ 2897 bool 2898 default y if !SYS_SUPPORTS_24HZ && \ 2899 !SYS_SUPPORTS_48HZ && \ 2900 !SYS_SUPPORTS_100HZ && \ 2901 !SYS_SUPPORTS_128HZ && \ 2902 !SYS_SUPPORTS_250HZ && \ 2903 !SYS_SUPPORTS_256HZ && \ 2904 !SYS_SUPPORTS_1000HZ && \ 2905 !SYS_SUPPORTS_1024HZ 2906 2907config HZ 2908 int 2909 default 24 if HZ_24 2910 default 48 if HZ_48 2911 default 100 if HZ_100 2912 default 128 if HZ_128 2913 default 250 if HZ_250 2914 default 256 if HZ_256 2915 default 1000 if HZ_1000 2916 default 1024 if HZ_1024 2917 2918config SCHED_HRTICK 2919 def_bool HIGH_RES_TIMERS 2920 2921config ARCH_SUPPORTS_KEXEC 2922 def_bool y 2923 2924config ARCH_SUPPORTS_CRASH_DUMP 2925 def_bool y 2926 2927config PHYSICAL_START 2928 hex "Physical address where the kernel is loaded" 2929 default "0xffffffff84000000" 2930 depends on CRASH_DUMP 2931 help 2932 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2933 If you plan to use kernel for capturing the crash dump change 2934 this value to start of the reserved region (the "X" value as 2935 specified in the "crashkernel=YM@XM" command line boot parameter 2936 passed to the panic-ed kernel). 2937 2938config MIPS_O32_FP64_SUPPORT 2939 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2940 depends on 32BIT || MIPS32_O32 2941 help 2942 When this is enabled, the kernel will support use of 64-bit floating 2943 point registers with binaries using the O32 ABI along with the 2944 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2945 32-bit MIPS systems this support is at the cost of increasing the 2946 size and complexity of the compiled FPU emulator. Thus if you are 2947 running a MIPS32 system and know that none of your userland binaries 2948 will require 64-bit floating point, you may wish to reduce the size 2949 of your kernel & potentially improve FP emulation performance by 2950 saying N here. 2951 2952 Although binutils currently supports use of this flag the details 2953 concerning its effect upon the O32 ABI in userland are still being 2954 worked on. In order to avoid userland becoming dependent upon current 2955 behaviour before the details have been finalised, this option should 2956 be considered experimental and only enabled by those working upon 2957 said details. 2958 2959 If unsure, say N. 2960 2961config USE_OF 2962 bool 2963 select OF 2964 select OF_EARLY_FLATTREE 2965 select IRQ_DOMAIN 2966 2967config UHI_BOOT 2968 bool 2969 2970config BUILTIN_DTB 2971 bool 2972 2973choice 2974 prompt "Kernel appended dtb support" if USE_OF 2975 default MIPS_NO_APPENDED_DTB 2976 2977 config MIPS_NO_APPENDED_DTB 2978 bool "None" 2979 help 2980 Do not enable appended dtb support. 2981 2982 config MIPS_ELF_APPENDED_DTB 2983 bool "vmlinux" 2984 help 2985 With this option, the boot code will look for a device tree binary 2986 DTB) included in the vmlinux ELF section .appended_dtb. By default 2987 it is empty and the DTB can be appended using binutils command 2988 objcopy: 2989 2990 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2991 2992 This is meant as a backward compatibility convenience for those 2993 systems with a bootloader that can't be upgraded to accommodate 2994 the documented boot protocol using a device tree. 2995 2996 config MIPS_RAW_APPENDED_DTB 2997 bool "vmlinux.bin or vmlinuz.bin" 2998 help 2999 With this option, the boot code will look for a device tree binary 3000 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3001 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3002 3003 This is meant as a backward compatibility convenience for those 3004 systems with a bootloader that can't be upgraded to accommodate 3005 the documented boot protocol using a device tree. 3006 3007 Beware that there is very little in terms of protection against 3008 this option being confused by leftover garbage in memory that might 3009 look like a DTB header after a reboot if no actual DTB is appended 3010 to vmlinux.bin. Do not leave this option active in a production kernel 3011 if you don't intend to always append a DTB. 3012endchoice 3013 3014choice 3015 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3016 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3017 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3018 !CAVIUM_OCTEON_SOC 3019 default MIPS_CMDLINE_FROM_BOOTLOADER 3020 3021 config MIPS_CMDLINE_FROM_DTB 3022 depends on USE_OF 3023 bool "Dtb kernel arguments if available" 3024 3025 config MIPS_CMDLINE_DTB_EXTEND 3026 depends on USE_OF 3027 bool "Extend dtb kernel arguments with bootloader arguments" 3028 3029 config MIPS_CMDLINE_FROM_BOOTLOADER 3030 bool "Bootloader kernel arguments if available" 3031 3032 config MIPS_CMDLINE_BUILTIN_EXTEND 3033 depends on CMDLINE_BOOL 3034 bool "Extend builtin kernel arguments with bootloader arguments" 3035endchoice 3036 3037endmenu 3038 3039config LOCKDEP_SUPPORT 3040 bool 3041 default y 3042 3043config STACKTRACE_SUPPORT 3044 bool 3045 default y 3046 3047config PGTABLE_LEVELS 3048 int 3049 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3050 default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48) 3051 default 2 3052 3053config MIPS_AUTO_PFN_OFFSET 3054 bool 3055 3056menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3057 3058config PCI_DRIVERS_GENERIC 3059 select PCI_DOMAINS_GENERIC if PCI 3060 bool 3061 3062config PCI_DRIVERS_LEGACY 3063 def_bool !PCI_DRIVERS_GENERIC 3064 select NO_GENERIC_PCI_IOPORT_MAP 3065 select PCI_DOMAINS if PCI 3066 3067# 3068# ISA support is now enabled via select. Too many systems still have the one 3069# or other ISA chip on the board that users don't know about so don't expect 3070# users to choose the right thing ... 3071# 3072config ISA 3073 bool 3074 3075config TC 3076 bool "TURBOchannel support" 3077 depends on MACH_DECSTATION 3078 help 3079 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3080 processors. TURBOchannel programming specifications are available 3081 at: 3082 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3083 and: 3084 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3085 Linux driver support status is documented at: 3086 <http://www.linux-mips.org/wiki/DECstation> 3087 3088config MMU 3089 bool 3090 default y 3091 3092config ARCH_MMAP_RND_BITS_MIN 3093 default 12 if 64BIT 3094 default 8 3095 3096config ARCH_MMAP_RND_BITS_MAX 3097 default 18 if 64BIT 3098 default 15 3099 3100config ARCH_MMAP_RND_COMPAT_BITS_MIN 3101 default 8 3102 3103config ARCH_MMAP_RND_COMPAT_BITS_MAX 3104 default 15 3105 3106config I8253 3107 bool 3108 select CLKSRC_I8253 3109 select CLKEVT_I8253 3110 select MIPS_EXTERNAL_TIMER 3111endmenu 3112 3113config TRAD_SIGNALS 3114 bool 3115 3116config MIPS32_COMPAT 3117 bool 3118 3119config COMPAT 3120 bool 3121 3122config MIPS32_O32 3123 bool "Kernel support for o32 binaries" 3124 depends on 64BIT 3125 select ARCH_WANT_OLD_COMPAT_IPC 3126 select COMPAT 3127 select MIPS32_COMPAT 3128 help 3129 Select this option if you want to run o32 binaries. These are pure 3130 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3131 existing binaries are in this format. 3132 3133 If unsure, say Y. 3134 3135config MIPS32_N32 3136 bool "Kernel support for n32 binaries" 3137 depends on 64BIT 3138 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3139 select COMPAT 3140 select MIPS32_COMPAT 3141 help 3142 Select this option if you want to run n32 binaries. These are 3143 64-bit binaries using 32-bit quantities for addressing and certain 3144 data that would normally be 64-bit. They are used in special 3145 cases. 3146 3147 If unsure, say N. 3148 3149config CC_HAS_MNO_BRANCH_LIKELY 3150 def_bool y 3151 depends on $(cc-option,-mno-branch-likely) 3152 3153# https://github.com/llvm/llvm-project/issues/61045 3154config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH 3155 def_bool y if CC_IS_CLANG 3156 3157menu "Power management options" 3158 3159config ARCH_HIBERNATION_POSSIBLE 3160 def_bool y 3161 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3162 3163config ARCH_SUSPEND_POSSIBLE 3164 def_bool y 3165 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3166 3167source "kernel/power/Kconfig" 3168 3169endmenu 3170 3171config MIPS_EXTERNAL_TIMER 3172 bool 3173 3174menu "CPU Power Management" 3175 3176if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3177source "drivers/cpufreq/Kconfig" 3178endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3179 3180source "drivers/cpuidle/Kconfig" 3181 3182endmenu 3183 3184source "arch/mips/kvm/Kconfig" 3185 3186source "arch/mips/vdso/Kconfig" 3187