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_CLOCKSOURCE_DATA 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_HAS_UBSAN_SANITIZE_ALL 11 select ARCH_SUPPORTS_UPROBES 12 select ARCH_USE_BUILTIN_BSWAP 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 14 select ARCH_USE_QUEUED_RWLOCKS 15 select ARCH_USE_QUEUED_SPINLOCKS 16 select ARCH_WANT_IPC_PARSE_VERSION 17 select BUILDTIME_EXTABLE_SORT 18 select CLONE_BACKWARDS 19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 20 select CPU_PM if CPU_IDLE 21 select GENERIC_ATOMIC64 if !64BIT 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_CMOS_UPDATE 24 select GENERIC_CPU_AUTOPROBE 25 select GENERIC_GETTIMEOFDAY 26 select GENERIC_IOMAP 27 select GENERIC_IRQ_PROBE 28 select GENERIC_IRQ_SHOW 29 select GENERIC_ISA_DMA if EISA 30 select GENERIC_LIB_ASHLDI3 31 select GENERIC_LIB_ASHRDI3 32 select GENERIC_LIB_CMPDI2 33 select GENERIC_LIB_LSHRDI3 34 select GENERIC_LIB_UCMPDI2 35 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 36 select GENERIC_SMP_IDLE_THREAD 37 select GENERIC_TIME_VSYSCALL 38 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 39 select HANDLE_DOMAIN_IRQ 40 select HAVE_ARCH_COMPILER_H 41 select HAVE_ARCH_JUMP_LABEL 42 select HAVE_ARCH_KGDB 43 select HAVE_ARCH_MMAP_RND_BITS if MMU 44 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 45 select HAVE_ARCH_SECCOMP_FILTER 46 select HAVE_ARCH_TRACEHOOK 47 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 48 select HAVE_EBPF_JIT if (!CPU_MICROMIPS) 49 select HAVE_CONTEXT_TRACKING 50 select HAVE_COPY_THREAD_TLS 51 select HAVE_C_RECORDMCOUNT 52 select HAVE_DEBUG_KMEMLEAK 53 select HAVE_DEBUG_STACKOVERFLOW 54 select HAVE_DMA_CONTIGUOUS 55 select HAVE_DYNAMIC_FTRACE 56 select HAVE_EXIT_THREAD 57 select HAVE_FAST_GUP 58 select HAVE_FTRACE_MCOUNT_RECORD 59 select HAVE_FUNCTION_GRAPH_TRACER 60 select HAVE_FUNCTION_TRACER 61 select HAVE_IDE 62 select HAVE_IOREMAP_PROT 63 select HAVE_IRQ_EXIT_ON_IRQ_STACK 64 select HAVE_IRQ_TIME_ACCOUNTING 65 select HAVE_KPROBES 66 select HAVE_KRETPROBES 67 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 68 select HAVE_MEMBLOCK_NODE_MAP 69 select HAVE_MOD_ARCH_SPECIFIC 70 select HAVE_NMI 71 select HAVE_OPROFILE 72 select HAVE_PERF_EVENTS 73 select HAVE_REGS_AND_STACK_ACCESS_API 74 select HAVE_RSEQ 75 select HAVE_STACKPROTECTOR 76 select HAVE_SYSCALL_TRACEPOINTS 77 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 78 select HAVE_GENERIC_VDSO 79 select IRQ_FORCED_THREADING 80 select ISA if EISA 81 select MODULES_USE_ELF_RELA if MODULES && 64BIT 82 select MODULES_USE_ELF_REL if MODULES 83 select PERF_USE_VMALLOC 84 select RTC_LIB 85 select SYSCTL_EXCEPTION_TRACE 86 select VIRT_TO_BUS 87 select ARCH_HAS_PTE_SPECIAL 88 89menu "Machine selection" 90 91choice 92 prompt "System type" 93 default MIPS_GENERIC 94 95config MIPS_GENERIC 96 bool "Generic board-agnostic MIPS kernel" 97 select BOOT_RAW 98 select BUILTIN_DTB 99 select CEVT_R4K 100 select CLKSRC_MIPS_GIC 101 select COMMON_CLK 102 select CPU_MIPSR2_IRQ_VI 103 select CPU_MIPSR2_IRQ_EI 104 select CSRC_R4K 105 select DMA_PERDEV_COHERENT 106 select HAVE_PCI 107 select IRQ_MIPS_CPU 108 select LIBFDT 109 select MIPS_AUTO_PFN_OFFSET 110 select MIPS_CPU_SCACHE 111 select MIPS_GIC 112 select MIPS_L1_CACHE_SHIFT_7 113 select NO_EXCEPT_FILL 114 select PCI_DRIVERS_GENERIC 115 select PINCTRL 116 select SMP_UP if SMP 117 select SWAP_IO_SPACE 118 select SYS_HAS_CPU_MIPS32_R1 119 select SYS_HAS_CPU_MIPS32_R2 120 select SYS_HAS_CPU_MIPS32_R6 121 select SYS_HAS_CPU_MIPS64_R1 122 select SYS_HAS_CPU_MIPS64_R2 123 select SYS_HAS_CPU_MIPS64_R6 124 select SYS_SUPPORTS_32BIT_KERNEL 125 select SYS_SUPPORTS_64BIT_KERNEL 126 select SYS_SUPPORTS_BIG_ENDIAN 127 select SYS_SUPPORTS_HIGHMEM 128 select SYS_SUPPORTS_LITTLE_ENDIAN 129 select SYS_SUPPORTS_MICROMIPS 130 select SYS_SUPPORTS_MIPS_CPS 131 select SYS_SUPPORTS_MIPS16 132 select SYS_SUPPORTS_MULTITHREADING 133 select SYS_SUPPORTS_RELOCATABLE 134 select SYS_SUPPORTS_SMARTMIPS 135 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 136 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 137 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 138 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 139 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 140 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 141 select USE_OF 142 select UHI_BOOT 143 help 144 Select this to build a kernel which aims to support multiple boards, 145 generally using a flattened device tree passed from the bootloader 146 using the boot protocol defined in the UHI (Unified Hosting 147 Interface) specification. 148 149config MIPS_ALCHEMY 150 bool "Alchemy processor based machines" 151 select PHYS_ADDR_T_64BIT 152 select CEVT_R4K 153 select CSRC_R4K 154 select IRQ_MIPS_CPU 155 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 156 select SYS_HAS_CPU_MIPS32_R1 157 select SYS_SUPPORTS_32BIT_KERNEL 158 select SYS_SUPPORTS_APM_EMULATION 159 select GPIOLIB 160 select SYS_SUPPORTS_ZBOOT 161 select COMMON_CLK 162 163config AR7 164 bool "Texas Instruments AR7" 165 select BOOT_ELF32 166 select DMA_NONCOHERENT 167 select CEVT_R4K 168 select CSRC_R4K 169 select IRQ_MIPS_CPU 170 select NO_EXCEPT_FILL 171 select SWAP_IO_SPACE 172 select SYS_HAS_CPU_MIPS32_R1 173 select SYS_HAS_EARLY_PRINTK 174 select SYS_SUPPORTS_32BIT_KERNEL 175 select SYS_SUPPORTS_LITTLE_ENDIAN 176 select SYS_SUPPORTS_MIPS16 177 select SYS_SUPPORTS_ZBOOT_UART16550 178 select GPIOLIB 179 select VLYNQ 180 select HAVE_CLK 181 help 182 Support for the Texas Instruments AR7 System-on-a-Chip 183 family: TNETD7100, 7200 and 7300. 184 185config ATH25 186 bool "Atheros AR231x/AR531x SoC support" 187 select CEVT_R4K 188 select CSRC_R4K 189 select DMA_NONCOHERENT 190 select IRQ_MIPS_CPU 191 select IRQ_DOMAIN 192 select SYS_HAS_CPU_MIPS32_R1 193 select SYS_SUPPORTS_BIG_ENDIAN 194 select SYS_SUPPORTS_32BIT_KERNEL 195 select SYS_HAS_EARLY_PRINTK 196 help 197 Support for Atheros AR231x and Atheros AR531x based boards 198 199config ATH79 200 bool "Atheros AR71XX/AR724X/AR913X based boards" 201 select ARCH_HAS_RESET_CONTROLLER 202 select BOOT_RAW 203 select CEVT_R4K 204 select CSRC_R4K 205 select DMA_NONCOHERENT 206 select GPIOLIB 207 select PINCTRL 208 select HAVE_CLK 209 select COMMON_CLK 210 select CLKDEV_LOOKUP 211 select IRQ_MIPS_CPU 212 select SYS_HAS_CPU_MIPS32_R2 213 select SYS_HAS_EARLY_PRINTK 214 select SYS_SUPPORTS_32BIT_KERNEL 215 select SYS_SUPPORTS_BIG_ENDIAN 216 select SYS_SUPPORTS_MIPS16 217 select SYS_SUPPORTS_ZBOOT_UART_PROM 218 select USE_OF 219 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 220 help 221 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 222 223config BMIPS_GENERIC 224 bool "Broadcom Generic BMIPS kernel" 225 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 226 select ARCH_HAS_PHYS_TO_DMA 227 select BOOT_RAW 228 select NO_EXCEPT_FILL 229 select USE_OF 230 select CEVT_R4K 231 select CSRC_R4K 232 select SYNC_R4K 233 select COMMON_CLK 234 select BCM6345_L1_IRQ 235 select BCM7038_L1_IRQ 236 select BCM7120_L2_IRQ 237 select BRCMSTB_L2_IRQ 238 select IRQ_MIPS_CPU 239 select DMA_NONCOHERENT 240 select SYS_SUPPORTS_32BIT_KERNEL 241 select SYS_SUPPORTS_LITTLE_ENDIAN 242 select SYS_SUPPORTS_BIG_ENDIAN 243 select SYS_SUPPORTS_HIGHMEM 244 select SYS_HAS_CPU_BMIPS32_3300 245 select SYS_HAS_CPU_BMIPS4350 246 select SYS_HAS_CPU_BMIPS4380 247 select SYS_HAS_CPU_BMIPS5000 248 select SWAP_IO_SPACE 249 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 250 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 251 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 252 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 253 select HARDIRQS_SW_RESEND 254 help 255 Build a generic DT-based kernel image that boots on select 256 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 257 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 258 must be set appropriately for your board. 259 260config BCM47XX 261 bool "Broadcom BCM47XX based boards" 262 select BOOT_RAW 263 select CEVT_R4K 264 select CSRC_R4K 265 select DMA_NONCOHERENT 266 select HAVE_PCI 267 select IRQ_MIPS_CPU 268 select SYS_HAS_CPU_MIPS32_R1 269 select NO_EXCEPT_FILL 270 select SYS_SUPPORTS_32BIT_KERNEL 271 select SYS_SUPPORTS_LITTLE_ENDIAN 272 select SYS_SUPPORTS_MIPS16 273 select SYS_SUPPORTS_ZBOOT 274 select SYS_HAS_EARLY_PRINTK 275 select USE_GENERIC_EARLY_PRINTK_8250 276 select GPIOLIB 277 select LEDS_GPIO_REGISTER 278 select BCM47XX_NVRAM 279 select BCM47XX_SPROM 280 select BCM47XX_SSB if !BCM47XX_BCMA 281 help 282 Support for BCM47XX based boards 283 284config BCM63XX 285 bool "Broadcom BCM63XX based boards" 286 select BOOT_RAW 287 select CEVT_R4K 288 select CSRC_R4K 289 select SYNC_R4K 290 select DMA_NONCOHERENT 291 select IRQ_MIPS_CPU 292 select SYS_SUPPORTS_32BIT_KERNEL 293 select SYS_SUPPORTS_BIG_ENDIAN 294 select SYS_HAS_EARLY_PRINTK 295 select SWAP_IO_SPACE 296 select GPIOLIB 297 select HAVE_CLK 298 select MIPS_L1_CACHE_SHIFT_4 299 select CLKDEV_LOOKUP 300 help 301 Support for BCM63XX based boards 302 303config MIPS_COBALT 304 bool "Cobalt Server" 305 select CEVT_R4K 306 select CSRC_R4K 307 select CEVT_GT641XX 308 select DMA_NONCOHERENT 309 select FORCE_PCI 310 select I8253 311 select I8259 312 select IRQ_MIPS_CPU 313 select IRQ_GT641XX 314 select PCI_GT64XXX_PCI0 315 select SYS_HAS_CPU_NEVADA 316 select SYS_HAS_EARLY_PRINTK 317 select SYS_SUPPORTS_32BIT_KERNEL 318 select SYS_SUPPORTS_64BIT_KERNEL 319 select SYS_SUPPORTS_LITTLE_ENDIAN 320 select USE_GENERIC_EARLY_PRINTK_8250 321 322config MACH_DECSTATION 323 bool "DECstations" 324 select BOOT_ELF32 325 select CEVT_DS1287 326 select CEVT_R4K if CPU_R4X00 327 select CSRC_IOASIC 328 select CSRC_R4K if CPU_R4X00 329 select CPU_DADDI_WORKAROUNDS if 64BIT 330 select CPU_R4000_WORKAROUNDS if 64BIT 331 select CPU_R4400_WORKAROUNDS if 64BIT 332 select DMA_NONCOHERENT 333 select NO_IOPORT_MAP 334 select IRQ_MIPS_CPU 335 select SYS_HAS_CPU_R3000 336 select SYS_HAS_CPU_R4X00 337 select SYS_SUPPORTS_32BIT_KERNEL 338 select SYS_SUPPORTS_64BIT_KERNEL 339 select SYS_SUPPORTS_LITTLE_ENDIAN 340 select SYS_SUPPORTS_128HZ 341 select SYS_SUPPORTS_256HZ 342 select SYS_SUPPORTS_1024HZ 343 select MIPS_L1_CACHE_SHIFT_4 344 help 345 This enables support for DEC's MIPS based workstations. For details 346 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 347 DECstation porting pages on <http://decstation.unix-ag.org/>. 348 349 If you have one of the following DECstation Models you definitely 350 want to choose R4xx0 for the CPU Type: 351 352 DECstation 5000/50 353 DECstation 5000/150 354 DECstation 5000/260 355 DECsystem 5900/260 356 357 otherwise choose R3000. 358 359config MACH_JAZZ 360 bool "Jazz family of machines" 361 select ARCH_MIGHT_HAVE_PC_PARPORT 362 select ARCH_MIGHT_HAVE_PC_SERIO 363 select FW_ARC 364 select FW_ARC32 365 select ARCH_MAY_HAVE_PC_FDC 366 select CEVT_R4K 367 select CSRC_R4K 368 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 369 select GENERIC_ISA_DMA 370 select HAVE_PCSPKR_PLATFORM 371 select IRQ_MIPS_CPU 372 select I8253 373 select I8259 374 select ISA 375 select SYS_HAS_CPU_R4X00 376 select SYS_SUPPORTS_32BIT_KERNEL 377 select SYS_SUPPORTS_64BIT_KERNEL 378 select SYS_SUPPORTS_100HZ 379 help 380 This a family of machines based on the MIPS R4030 chipset which was 381 used by several vendors to build RISC/os and Windows NT workstations. 382 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 383 Olivetti M700-10 workstations. 384 385config MACH_INGENIC 386 bool "Ingenic SoC based machines" 387 select SYS_SUPPORTS_32BIT_KERNEL 388 select SYS_SUPPORTS_LITTLE_ENDIAN 389 select SYS_SUPPORTS_ZBOOT_UART16550 390 select CPU_SUPPORTS_HUGEPAGES 391 select DMA_NONCOHERENT 392 select IRQ_MIPS_CPU 393 select PINCTRL 394 select GPIOLIB 395 select COMMON_CLK 396 select GENERIC_IRQ_CHIP 397 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 398 select USE_OF 399 select LIBFDT 400 401config LANTIQ 402 bool "Lantiq based platforms" 403 select DMA_NONCOHERENT 404 select IRQ_MIPS_CPU 405 select CEVT_R4K 406 select CSRC_R4K 407 select SYS_HAS_CPU_MIPS32_R1 408 select SYS_HAS_CPU_MIPS32_R2 409 select SYS_SUPPORTS_BIG_ENDIAN 410 select SYS_SUPPORTS_32BIT_KERNEL 411 select SYS_SUPPORTS_MIPS16 412 select SYS_SUPPORTS_MULTITHREADING 413 select SYS_SUPPORTS_VPE_LOADER 414 select SYS_HAS_EARLY_PRINTK 415 select GPIOLIB 416 select SWAP_IO_SPACE 417 select BOOT_RAW 418 select CLKDEV_LOOKUP 419 select USE_OF 420 select PINCTRL 421 select PINCTRL_LANTIQ 422 select ARCH_HAS_RESET_CONTROLLER 423 select RESET_CONTROLLER 424 425config LASAT 426 bool "LASAT Networks platforms" 427 select CEVT_R4K 428 select CRC32 429 select CSRC_R4K 430 select DMA_NONCOHERENT 431 select SYS_HAS_EARLY_PRINTK 432 select HAVE_PCI 433 select IRQ_MIPS_CPU 434 select PCI_GT64XXX_PCI0 435 select MIPS_NILE4 436 select R5000_CPU_SCACHE 437 select SYS_HAS_CPU_R5000 438 select SYS_SUPPORTS_32BIT_KERNEL 439 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 440 select SYS_SUPPORTS_LITTLE_ENDIAN 441 442config MACH_LOONGSON32 443 bool "Loongson-1 family of machines" 444 select SYS_SUPPORTS_ZBOOT 445 help 446 This enables support for the Loongson-1 family of machines. 447 448 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 449 the Institute of Computing Technology (ICT), Chinese Academy of 450 Sciences (CAS). 451 452config MACH_LOONGSON64 453 bool "Loongson-2/3 family of machines" 454 select SYS_SUPPORTS_ZBOOT 455 help 456 This enables the support of Loongson-2/3 family of machines. 457 458 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 459 family of multi-core CPUs. They are both 64-bit general-purpose 460 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 461 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 462 in the People's Republic of China. The chief architect is Professor 463 Weiwu Hu. 464 465config MACH_PISTACHIO 466 bool "IMG Pistachio SoC based boards" 467 select BOOT_ELF32 468 select BOOT_RAW 469 select CEVT_R4K 470 select CLKSRC_MIPS_GIC 471 select COMMON_CLK 472 select CSRC_R4K 473 select DMA_NONCOHERENT 474 select GPIOLIB 475 select IRQ_MIPS_CPU 476 select LIBFDT 477 select MFD_SYSCON 478 select MIPS_CPU_SCACHE 479 select MIPS_GIC 480 select PINCTRL 481 select REGULATOR 482 select SYS_HAS_CPU_MIPS32_R2 483 select SYS_SUPPORTS_32BIT_KERNEL 484 select SYS_SUPPORTS_LITTLE_ENDIAN 485 select SYS_SUPPORTS_MIPS_CPS 486 select SYS_SUPPORTS_MULTITHREADING 487 select SYS_SUPPORTS_RELOCATABLE 488 select SYS_SUPPORTS_ZBOOT 489 select SYS_HAS_EARLY_PRINTK 490 select USE_GENERIC_EARLY_PRINTK_8250 491 select USE_OF 492 help 493 This enables support for the IMG Pistachio SoC platform. 494 495config MIPS_MALTA 496 bool "MIPS Malta board" 497 select ARCH_MAY_HAVE_PC_FDC 498 select ARCH_MIGHT_HAVE_PC_PARPORT 499 select ARCH_MIGHT_HAVE_PC_SERIO 500 select BOOT_ELF32 501 select BOOT_RAW 502 select BUILTIN_DTB 503 select CEVT_R4K 504 select CLKSRC_MIPS_GIC 505 select COMMON_CLK 506 select CSRC_R4K 507 select DMA_MAYBE_COHERENT 508 select GENERIC_ISA_DMA 509 select HAVE_PCSPKR_PLATFORM 510 select HAVE_PCI 511 select I8253 512 select I8259 513 select IRQ_MIPS_CPU 514 select LIBFDT 515 select MIPS_BONITO64 516 select MIPS_CPU_SCACHE 517 select MIPS_GIC 518 select MIPS_L1_CACHE_SHIFT_6 519 select MIPS_MSC 520 select PCI_GT64XXX_PCI0 521 select SMP_UP if SMP 522 select SWAP_IO_SPACE 523 select SYS_HAS_CPU_MIPS32_R1 524 select SYS_HAS_CPU_MIPS32_R2 525 select SYS_HAS_CPU_MIPS32_R3_5 526 select SYS_HAS_CPU_MIPS32_R5 527 select SYS_HAS_CPU_MIPS32_R6 528 select SYS_HAS_CPU_MIPS64_R1 529 select SYS_HAS_CPU_MIPS64_R2 530 select SYS_HAS_CPU_MIPS64_R6 531 select SYS_HAS_CPU_NEVADA 532 select SYS_HAS_CPU_RM7000 533 select SYS_SUPPORTS_32BIT_KERNEL 534 select SYS_SUPPORTS_64BIT_KERNEL 535 select SYS_SUPPORTS_BIG_ENDIAN 536 select SYS_SUPPORTS_HIGHMEM 537 select SYS_SUPPORTS_LITTLE_ENDIAN 538 select SYS_SUPPORTS_MICROMIPS 539 select SYS_SUPPORTS_MIPS16 540 select SYS_SUPPORTS_MIPS_CMP 541 select SYS_SUPPORTS_MIPS_CPS 542 select SYS_SUPPORTS_MULTITHREADING 543 select SYS_SUPPORTS_RELOCATABLE 544 select SYS_SUPPORTS_SMARTMIPS 545 select SYS_SUPPORTS_VPE_LOADER 546 select SYS_SUPPORTS_ZBOOT 547 select USE_OF 548 select ZONE_DMA32 if 64BIT 549 help 550 This enables support for the MIPS Technologies Malta evaluation 551 board. 552 553config MACH_PIC32 554 bool "Microchip PIC32 Family" 555 help 556 This enables support for the Microchip PIC32 family of platforms. 557 558 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 559 microcontrollers. 560 561config NEC_MARKEINS 562 bool "NEC EMMA2RH Mark-eins board" 563 select SOC_EMMA2RH 564 select HAVE_PCI 565 help 566 This enables support for the NEC Electronics Mark-eins boards. 567 568config MACH_VR41XX 569 bool "NEC VR4100 series based machines" 570 select CEVT_R4K 571 select CSRC_R4K 572 select SYS_HAS_CPU_VR41XX 573 select SYS_SUPPORTS_MIPS16 574 select GPIOLIB 575 576config NXP_STB220 577 bool "NXP STB220 board" 578 select SOC_PNX833X 579 help 580 Support for NXP Semiconductors STB220 Development Board. 581 582config NXP_STB225 583 bool "NXP 225 board" 584 select SOC_PNX833X 585 select SOC_PNX8335 586 help 587 Support for NXP Semiconductors STB225 Development Board. 588 589config PMC_MSP 590 bool "PMC-Sierra MSP chipsets" 591 select CEVT_R4K 592 select CSRC_R4K 593 select DMA_NONCOHERENT 594 select SWAP_IO_SPACE 595 select NO_EXCEPT_FILL 596 select BOOT_RAW 597 select SYS_HAS_CPU_MIPS32_R1 598 select SYS_HAS_CPU_MIPS32_R2 599 select SYS_SUPPORTS_32BIT_KERNEL 600 select SYS_SUPPORTS_BIG_ENDIAN 601 select SYS_SUPPORTS_MIPS16 602 select IRQ_MIPS_CPU 603 select SERIAL_8250 604 select SERIAL_8250_CONSOLE 605 select USB_EHCI_BIG_ENDIAN_MMIO 606 select USB_EHCI_BIG_ENDIAN_DESC 607 help 608 This adds support for the PMC-Sierra family of Multi-Service 609 Processor System-On-A-Chips. These parts include a number 610 of integrated peripherals, interfaces and DSPs in addition to 611 a variety of MIPS cores. 612 613config RALINK 614 bool "Ralink based machines" 615 select CEVT_R4K 616 select CSRC_R4K 617 select BOOT_RAW 618 select DMA_NONCOHERENT 619 select IRQ_MIPS_CPU 620 select USE_OF 621 select SYS_HAS_CPU_MIPS32_R1 622 select SYS_HAS_CPU_MIPS32_R2 623 select SYS_SUPPORTS_32BIT_KERNEL 624 select SYS_SUPPORTS_LITTLE_ENDIAN 625 select SYS_SUPPORTS_MIPS16 626 select SYS_HAS_EARLY_PRINTK 627 select CLKDEV_LOOKUP 628 select ARCH_HAS_RESET_CONTROLLER 629 select RESET_CONTROLLER 630 631config SGI_IP22 632 bool "SGI IP22 (Indy/Indigo2)" 633 select FW_ARC 634 select FW_ARC32 635 select ARCH_MIGHT_HAVE_PC_SERIO 636 select BOOT_ELF32 637 select CEVT_R4K 638 select CSRC_R4K 639 select DEFAULT_SGI_PARTITION 640 select DMA_NONCOHERENT 641 select HAVE_EISA 642 select I8253 643 select I8259 644 select IP22_CPU_SCACHE 645 select IRQ_MIPS_CPU 646 select GENERIC_ISA_DMA_SUPPORT_BROKEN 647 select SGI_HAS_I8042 648 select SGI_HAS_INDYDOG 649 select SGI_HAS_HAL2 650 select SGI_HAS_SEEQ 651 select SGI_HAS_WD93 652 select SGI_HAS_ZILOG 653 select SWAP_IO_SPACE 654 select SYS_HAS_CPU_R4X00 655 select SYS_HAS_CPU_R5000 656 # 657 # Disable EARLY_PRINTK for now since it leads to overwritten prom 658 # memory during early boot on some machines. 659 # 660 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 661 # for a more details discussion 662 # 663 # select SYS_HAS_EARLY_PRINTK 664 select SYS_SUPPORTS_32BIT_KERNEL 665 select SYS_SUPPORTS_64BIT_KERNEL 666 select SYS_SUPPORTS_BIG_ENDIAN 667 select MIPS_L1_CACHE_SHIFT_7 668 help 669 This are the SGI Indy, Challenge S and Indigo2, as well as certain 670 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 671 that runs on these, say Y here. 672 673config SGI_IP27 674 bool "SGI IP27 (Origin200/2000)" 675 select ARCH_HAS_PHYS_TO_DMA 676 select FW_ARC 677 select FW_ARC64 678 select BOOT_ELF64 679 select DEFAULT_SGI_PARTITION 680 select SYS_HAS_EARLY_PRINTK 681 select HAVE_PCI 682 select IRQ_MIPS_CPU 683 select IRQ_DOMAIN_HIERARCHY 684 select NR_CPUS_DEFAULT_64 685 select PCI_DRIVERS_GENERIC 686 select PCI_XTALK_BRIDGE 687 select SYS_HAS_CPU_R10000 688 select SYS_SUPPORTS_64BIT_KERNEL 689 select SYS_SUPPORTS_BIG_ENDIAN 690 select SYS_SUPPORTS_NUMA 691 select SYS_SUPPORTS_SMP 692 select MIPS_L1_CACHE_SHIFT_7 693 help 694 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 695 workstations. To compile a Linux kernel that runs on these, say Y 696 here. 697 698config SGI_IP28 699 bool "SGI IP28 (Indigo2 R10k)" 700 select FW_ARC 701 select FW_ARC64 702 select ARCH_MIGHT_HAVE_PC_SERIO 703 select BOOT_ELF64 704 select CEVT_R4K 705 select CSRC_R4K 706 select DEFAULT_SGI_PARTITION 707 select DMA_NONCOHERENT 708 select GENERIC_ISA_DMA_SUPPORT_BROKEN 709 select IRQ_MIPS_CPU 710 select HAVE_EISA 711 select I8253 712 select I8259 713 select SGI_HAS_I8042 714 select SGI_HAS_INDYDOG 715 select SGI_HAS_HAL2 716 select SGI_HAS_SEEQ 717 select SGI_HAS_WD93 718 select SGI_HAS_ZILOG 719 select SWAP_IO_SPACE 720 select SYS_HAS_CPU_R10000 721 # 722 # Disable EARLY_PRINTK for now since it leads to overwritten prom 723 # memory during early boot on some machines. 724 # 725 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 726 # for a more details discussion 727 # 728 # select SYS_HAS_EARLY_PRINTK 729 select SYS_SUPPORTS_64BIT_KERNEL 730 select SYS_SUPPORTS_BIG_ENDIAN 731 select MIPS_L1_CACHE_SHIFT_7 732 help 733 This is the SGI Indigo2 with R10000 processor. To compile a Linux 734 kernel that runs on these, say Y here. 735 736config SGI_IP32 737 bool "SGI IP32 (O2)" 738 select ARCH_HAS_PHYS_TO_DMA 739 select FW_ARC 740 select FW_ARC32 741 select BOOT_ELF32 742 select CEVT_R4K 743 select CSRC_R4K 744 select DMA_NONCOHERENT 745 select HAVE_PCI 746 select IRQ_MIPS_CPU 747 select R5000_CPU_SCACHE 748 select RM7000_CPU_SCACHE 749 select SYS_HAS_CPU_R5000 750 select SYS_HAS_CPU_R10000 if BROKEN 751 select SYS_HAS_CPU_RM7000 752 select SYS_HAS_CPU_NEVADA 753 select SYS_SUPPORTS_64BIT_KERNEL 754 select SYS_SUPPORTS_BIG_ENDIAN 755 help 756 If you want this kernel to run on SGI O2 workstation, say Y here. 757 758config SIBYTE_CRHINE 759 bool "Sibyte BCM91120C-CRhine" 760 select BOOT_ELF32 761 select SIBYTE_BCM1120 762 select SWAP_IO_SPACE 763 select SYS_HAS_CPU_SB1 764 select SYS_SUPPORTS_BIG_ENDIAN 765 select SYS_SUPPORTS_LITTLE_ENDIAN 766 767config SIBYTE_CARMEL 768 bool "Sibyte BCM91120x-Carmel" 769 select BOOT_ELF32 770 select SIBYTE_BCM1120 771 select SWAP_IO_SPACE 772 select SYS_HAS_CPU_SB1 773 select SYS_SUPPORTS_BIG_ENDIAN 774 select SYS_SUPPORTS_LITTLE_ENDIAN 775 776config SIBYTE_CRHONE 777 bool "Sibyte BCM91125C-CRhone" 778 select BOOT_ELF32 779 select SIBYTE_BCM1125 780 select SWAP_IO_SPACE 781 select SYS_HAS_CPU_SB1 782 select SYS_SUPPORTS_BIG_ENDIAN 783 select SYS_SUPPORTS_HIGHMEM 784 select SYS_SUPPORTS_LITTLE_ENDIAN 785 786config SIBYTE_RHONE 787 bool "Sibyte BCM91125E-Rhone" 788 select BOOT_ELF32 789 select SIBYTE_BCM1125H 790 select SWAP_IO_SPACE 791 select SYS_HAS_CPU_SB1 792 select SYS_SUPPORTS_BIG_ENDIAN 793 select SYS_SUPPORTS_LITTLE_ENDIAN 794 795config SIBYTE_SWARM 796 bool "Sibyte BCM91250A-SWARM" 797 select BOOT_ELF32 798 select HAVE_PATA_PLATFORM 799 select SIBYTE_SB1250 800 select SWAP_IO_SPACE 801 select SYS_HAS_CPU_SB1 802 select SYS_SUPPORTS_BIG_ENDIAN 803 select SYS_SUPPORTS_HIGHMEM 804 select SYS_SUPPORTS_LITTLE_ENDIAN 805 select ZONE_DMA32 if 64BIT 806 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 807 808config SIBYTE_LITTLESUR 809 bool "Sibyte BCM91250C2-LittleSur" 810 select BOOT_ELF32 811 select HAVE_PATA_PLATFORM 812 select SIBYTE_SB1250 813 select SWAP_IO_SPACE 814 select SYS_HAS_CPU_SB1 815 select SYS_SUPPORTS_BIG_ENDIAN 816 select SYS_SUPPORTS_HIGHMEM 817 select SYS_SUPPORTS_LITTLE_ENDIAN 818 select ZONE_DMA32 if 64BIT 819 820config SIBYTE_SENTOSA 821 bool "Sibyte BCM91250E-Sentosa" 822 select BOOT_ELF32 823 select SIBYTE_SB1250 824 select SWAP_IO_SPACE 825 select SYS_HAS_CPU_SB1 826 select SYS_SUPPORTS_BIG_ENDIAN 827 select SYS_SUPPORTS_LITTLE_ENDIAN 828 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 829 830config SIBYTE_BIGSUR 831 bool "Sibyte BCM91480B-BigSur" 832 select BOOT_ELF32 833 select NR_CPUS_DEFAULT_4 834 select SIBYTE_BCM1x80 835 select SWAP_IO_SPACE 836 select SYS_HAS_CPU_SB1 837 select SYS_SUPPORTS_BIG_ENDIAN 838 select SYS_SUPPORTS_HIGHMEM 839 select SYS_SUPPORTS_LITTLE_ENDIAN 840 select ZONE_DMA32 if 64BIT 841 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 842 843config SNI_RM 844 bool "SNI RM200/300/400" 845 select FW_ARC if CPU_LITTLE_ENDIAN 846 select FW_ARC32 if CPU_LITTLE_ENDIAN 847 select FW_SNIPROM if CPU_BIG_ENDIAN 848 select ARCH_MAY_HAVE_PC_FDC 849 select ARCH_MIGHT_HAVE_PC_PARPORT 850 select ARCH_MIGHT_HAVE_PC_SERIO 851 select BOOT_ELF32 852 select CEVT_R4K 853 select CSRC_R4K 854 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 855 select DMA_NONCOHERENT 856 select GENERIC_ISA_DMA 857 select HAVE_EISA 858 select HAVE_PCSPKR_PLATFORM 859 select HAVE_PCI 860 select IRQ_MIPS_CPU 861 select I8253 862 select I8259 863 select ISA 864 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 865 select SYS_HAS_CPU_R4X00 866 select SYS_HAS_CPU_R5000 867 select SYS_HAS_CPU_R10000 868 select R5000_CPU_SCACHE 869 select SYS_HAS_EARLY_PRINTK 870 select SYS_SUPPORTS_32BIT_KERNEL 871 select SYS_SUPPORTS_64BIT_KERNEL 872 select SYS_SUPPORTS_BIG_ENDIAN 873 select SYS_SUPPORTS_HIGHMEM 874 select SYS_SUPPORTS_LITTLE_ENDIAN 875 help 876 The SNI RM200/300/400 are MIPS-based machines manufactured by 877 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 878 Technology and now in turn merged with Fujitsu. Say Y here to 879 support this machine type. 880 881config MACH_TX39XX 882 bool "Toshiba TX39 series based machines" 883 884config MACH_TX49XX 885 bool "Toshiba TX49 series based machines" 886 887config MIKROTIK_RB532 888 bool "Mikrotik RB532 boards" 889 select CEVT_R4K 890 select CSRC_R4K 891 select DMA_NONCOHERENT 892 select HAVE_PCI 893 select IRQ_MIPS_CPU 894 select SYS_HAS_CPU_MIPS32_R1 895 select SYS_SUPPORTS_32BIT_KERNEL 896 select SYS_SUPPORTS_LITTLE_ENDIAN 897 select SWAP_IO_SPACE 898 select BOOT_RAW 899 select GPIOLIB 900 select MIPS_L1_CACHE_SHIFT_4 901 help 902 Support the Mikrotik(tm) RouterBoard 532 series, 903 based on the IDT RC32434 SoC. 904 905config CAVIUM_OCTEON_SOC 906 bool "Cavium Networks Octeon SoC based boards" 907 select CEVT_R4K 908 select ARCH_HAS_PHYS_TO_DMA 909 select HAVE_RAPIDIO 910 select PHYS_ADDR_T_64BIT 911 select SYS_SUPPORTS_64BIT_KERNEL 912 select SYS_SUPPORTS_BIG_ENDIAN 913 select EDAC_SUPPORT 914 select EDAC_ATOMIC_SCRUB 915 select SYS_SUPPORTS_LITTLE_ENDIAN 916 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 917 select SYS_HAS_EARLY_PRINTK 918 select SYS_HAS_CPU_CAVIUM_OCTEON 919 select HAVE_PCI 920 select ZONE_DMA32 921 select HOLES_IN_ZONE 922 select GPIOLIB 923 select LIBFDT 924 select USE_OF 925 select ARCH_SPARSEMEM_ENABLE 926 select SYS_SUPPORTS_SMP 927 select NR_CPUS_DEFAULT_64 928 select MIPS_NR_CPU_NR_MAP_1024 929 select BUILTIN_DTB 930 select MTD_COMPLEX_MAPPINGS 931 select SWIOTLB 932 select SYS_SUPPORTS_RELOCATABLE 933 help 934 This option supports all of the Octeon reference boards from Cavium 935 Networks. It builds a kernel that dynamically determines the Octeon 936 CPU type and supports all known board reference implementations. 937 Some of the supported boards are: 938 EBT3000 939 EBH3000 940 EBH3100 941 Thunder 942 Kodama 943 Hikari 944 Say Y here for most Octeon reference boards. 945 946config NLM_XLR_BOARD 947 bool "Netlogic XLR/XLS based systems" 948 select BOOT_ELF32 949 select NLM_COMMON 950 select SYS_HAS_CPU_XLR 951 select SYS_SUPPORTS_SMP 952 select HAVE_PCI 953 select SWAP_IO_SPACE 954 select SYS_SUPPORTS_32BIT_KERNEL 955 select SYS_SUPPORTS_64BIT_KERNEL 956 select PHYS_ADDR_T_64BIT 957 select SYS_SUPPORTS_BIG_ENDIAN 958 select SYS_SUPPORTS_HIGHMEM 959 select NR_CPUS_DEFAULT_32 960 select CEVT_R4K 961 select CSRC_R4K 962 select IRQ_MIPS_CPU 963 select ZONE_DMA32 if 64BIT 964 select SYNC_R4K 965 select SYS_HAS_EARLY_PRINTK 966 select SYS_SUPPORTS_ZBOOT 967 select SYS_SUPPORTS_ZBOOT_UART16550 968 help 969 Support for systems based on Netlogic XLR and XLS processors. 970 Say Y here if you have a XLR or XLS based board. 971 972config NLM_XLP_BOARD 973 bool "Netlogic XLP based systems" 974 select BOOT_ELF32 975 select NLM_COMMON 976 select SYS_HAS_CPU_XLP 977 select SYS_SUPPORTS_SMP 978 select HAVE_PCI 979 select SYS_SUPPORTS_32BIT_KERNEL 980 select SYS_SUPPORTS_64BIT_KERNEL 981 select PHYS_ADDR_T_64BIT 982 select GPIOLIB 983 select SYS_SUPPORTS_BIG_ENDIAN 984 select SYS_SUPPORTS_LITTLE_ENDIAN 985 select SYS_SUPPORTS_HIGHMEM 986 select NR_CPUS_DEFAULT_32 987 select CEVT_R4K 988 select CSRC_R4K 989 select IRQ_MIPS_CPU 990 select ZONE_DMA32 if 64BIT 991 select SYNC_R4K 992 select SYS_HAS_EARLY_PRINTK 993 select USE_OF 994 select SYS_SUPPORTS_ZBOOT 995 select SYS_SUPPORTS_ZBOOT_UART16550 996 help 997 This board is based on Netlogic XLP Processor. 998 Say Y here if you have a XLP based board. 999 1000config MIPS_PARAVIRT 1001 bool "Para-Virtualized guest system" 1002 select CEVT_R4K 1003 select CSRC_R4K 1004 select SYS_SUPPORTS_64BIT_KERNEL 1005 select SYS_SUPPORTS_32BIT_KERNEL 1006 select SYS_SUPPORTS_BIG_ENDIAN 1007 select SYS_SUPPORTS_SMP 1008 select NR_CPUS_DEFAULT_4 1009 select SYS_HAS_EARLY_PRINTK 1010 select SYS_HAS_CPU_MIPS32_R2 1011 select SYS_HAS_CPU_MIPS64_R2 1012 select SYS_HAS_CPU_CAVIUM_OCTEON 1013 select HAVE_PCI 1014 select SWAP_IO_SPACE 1015 help 1016 This option supports guest running under ???? 1017 1018endchoice 1019 1020source "arch/mips/alchemy/Kconfig" 1021source "arch/mips/ath25/Kconfig" 1022source "arch/mips/ath79/Kconfig" 1023source "arch/mips/bcm47xx/Kconfig" 1024source "arch/mips/bcm63xx/Kconfig" 1025source "arch/mips/bmips/Kconfig" 1026source "arch/mips/generic/Kconfig" 1027source "arch/mips/jazz/Kconfig" 1028source "arch/mips/jz4740/Kconfig" 1029source "arch/mips/lantiq/Kconfig" 1030source "arch/mips/lasat/Kconfig" 1031source "arch/mips/pic32/Kconfig" 1032source "arch/mips/pistachio/Kconfig" 1033source "arch/mips/pmcs-msp71xx/Kconfig" 1034source "arch/mips/ralink/Kconfig" 1035source "arch/mips/sgi-ip27/Kconfig" 1036source "arch/mips/sibyte/Kconfig" 1037source "arch/mips/txx9/Kconfig" 1038source "arch/mips/vr41xx/Kconfig" 1039source "arch/mips/cavium-octeon/Kconfig" 1040source "arch/mips/loongson32/Kconfig" 1041source "arch/mips/loongson64/Kconfig" 1042source "arch/mips/netlogic/Kconfig" 1043source "arch/mips/paravirt/Kconfig" 1044 1045endmenu 1046 1047config GENERIC_HWEIGHT 1048 bool 1049 default y 1050 1051config GENERIC_CALIBRATE_DELAY 1052 bool 1053 default y 1054 1055config SCHED_OMIT_FRAME_POINTER 1056 bool 1057 default y 1058 1059# 1060# Select some configuration options automatically based on user selections. 1061# 1062config FW_ARC 1063 bool 1064 1065config ARCH_MAY_HAVE_PC_FDC 1066 bool 1067 1068config BOOT_RAW 1069 bool 1070 1071config CEVT_BCM1480 1072 bool 1073 1074config CEVT_DS1287 1075 bool 1076 1077config CEVT_GT641XX 1078 bool 1079 1080config CEVT_R4K 1081 bool 1082 1083config CEVT_SB1250 1084 bool 1085 1086config CEVT_TXX9 1087 bool 1088 1089config CSRC_BCM1480 1090 bool 1091 1092config CSRC_IOASIC 1093 bool 1094 1095config CSRC_R4K 1096 bool 1097 1098config CSRC_SB1250 1099 bool 1100 1101config MIPS_CLOCK_VSYSCALL 1102 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1103 1104config GPIO_TXX9 1105 select GPIOLIB 1106 bool 1107 1108config FW_CFE 1109 bool 1110 1111config ARCH_SUPPORTS_UPROBES 1112 bool 1113 1114config DMA_MAYBE_COHERENT 1115 select ARCH_HAS_DMA_COHERENCE_H 1116 select DMA_NONCOHERENT 1117 bool 1118 1119config DMA_PERDEV_COHERENT 1120 bool 1121 select ARCH_HAS_SETUP_DMA_OPS 1122 select DMA_NONCOHERENT 1123 1124config DMA_NONCOHERENT 1125 bool 1126 select ARCH_HAS_DMA_MMAP_PGPROT 1127 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1128 select ARCH_HAS_UNCACHED_SEGMENT 1129 select NEED_DMA_MAP_STATE 1130 select ARCH_HAS_DMA_COHERENT_TO_PFN 1131 select DMA_NONCOHERENT_CACHE_SYNC 1132 1133config SYS_HAS_EARLY_PRINTK 1134 bool 1135 1136config SYS_SUPPORTS_HOTPLUG_CPU 1137 bool 1138 1139config MIPS_BONITO64 1140 bool 1141 1142config MIPS_MSC 1143 bool 1144 1145config MIPS_NILE4 1146 bool 1147 1148config SYNC_R4K 1149 bool 1150 1151config MIPS_MACHINE 1152 def_bool n 1153 1154config NO_IOPORT_MAP 1155 def_bool n 1156 1157config GENERIC_CSUM 1158 bool 1159 default y if !CPU_HAS_LOAD_STORE_LR 1160 1161config GENERIC_ISA_DMA 1162 bool 1163 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1164 select ISA_DMA_API 1165 1166config GENERIC_ISA_DMA_SUPPORT_BROKEN 1167 bool 1168 select GENERIC_ISA_DMA 1169 1170config ISA_DMA_API 1171 bool 1172 1173config HOLES_IN_ZONE 1174 bool 1175 1176config SYS_SUPPORTS_RELOCATABLE 1177 bool 1178 help 1179 Selected if the platform supports relocating the kernel. 1180 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1181 to allow access to command line and entropy sources. 1182 1183config MIPS_CBPF_JIT 1184 def_bool y 1185 depends on BPF_JIT && HAVE_CBPF_JIT 1186 1187config MIPS_EBPF_JIT 1188 def_bool y 1189 depends on BPF_JIT && HAVE_EBPF_JIT 1190 1191 1192# 1193# Endianness selection. Sufficiently obscure so many users don't know what to 1194# answer,so we try hard to limit the available choices. Also the use of a 1195# choice statement should be more obvious to the user. 1196# 1197choice 1198 prompt "Endianness selection" 1199 help 1200 Some MIPS machines can be configured for either little or big endian 1201 byte order. These modes require different kernels and a different 1202 Linux distribution. In general there is one preferred byteorder for a 1203 particular system but some systems are just as commonly used in the 1204 one or the other endianness. 1205 1206config CPU_BIG_ENDIAN 1207 bool "Big endian" 1208 depends on SYS_SUPPORTS_BIG_ENDIAN 1209 1210config CPU_LITTLE_ENDIAN 1211 bool "Little endian" 1212 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1213 1214endchoice 1215 1216config EXPORT_UASM 1217 bool 1218 1219config SYS_SUPPORTS_APM_EMULATION 1220 bool 1221 1222config SYS_SUPPORTS_BIG_ENDIAN 1223 bool 1224 1225config SYS_SUPPORTS_LITTLE_ENDIAN 1226 bool 1227 1228config SYS_SUPPORTS_HUGETLBFS 1229 bool 1230 depends on CPU_SUPPORTS_HUGEPAGES 1231 default y 1232 1233config MIPS_HUGE_TLB_SUPPORT 1234 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1235 1236config IRQ_CPU_RM7K 1237 bool 1238 1239config IRQ_MSP_SLP 1240 bool 1241 1242config IRQ_MSP_CIC 1243 bool 1244 1245config IRQ_TXX9 1246 bool 1247 1248config IRQ_GT641XX 1249 bool 1250 1251config PCI_GT64XXX_PCI0 1252 bool 1253 1254config PCI_XTALK_BRIDGE 1255 bool 1256 1257config NO_EXCEPT_FILL 1258 bool 1259 1260config SOC_EMMA2RH 1261 bool 1262 select CEVT_R4K 1263 select CSRC_R4K 1264 select DMA_NONCOHERENT 1265 select IRQ_MIPS_CPU 1266 select SWAP_IO_SPACE 1267 select SYS_HAS_CPU_R5500 1268 select SYS_SUPPORTS_32BIT_KERNEL 1269 select SYS_SUPPORTS_64BIT_KERNEL 1270 select SYS_SUPPORTS_BIG_ENDIAN 1271 1272config SOC_PNX833X 1273 bool 1274 select CEVT_R4K 1275 select CSRC_R4K 1276 select IRQ_MIPS_CPU 1277 select DMA_NONCOHERENT 1278 select SYS_HAS_CPU_MIPS32_R2 1279 select SYS_SUPPORTS_32BIT_KERNEL 1280 select SYS_SUPPORTS_LITTLE_ENDIAN 1281 select SYS_SUPPORTS_BIG_ENDIAN 1282 select SYS_SUPPORTS_MIPS16 1283 select CPU_MIPSR2_IRQ_VI 1284 1285config SOC_PNX8335 1286 bool 1287 select SOC_PNX833X 1288 1289config MIPS_SPRAM 1290 bool 1291 1292config SWAP_IO_SPACE 1293 bool 1294 1295config SGI_HAS_INDYDOG 1296 bool 1297 1298config SGI_HAS_HAL2 1299 bool 1300 1301config SGI_HAS_SEEQ 1302 bool 1303 1304config SGI_HAS_WD93 1305 bool 1306 1307config SGI_HAS_ZILOG 1308 bool 1309 1310config SGI_HAS_I8042 1311 bool 1312 1313config DEFAULT_SGI_PARTITION 1314 bool 1315 1316config FW_ARC32 1317 bool 1318 1319config FW_SNIPROM 1320 bool 1321 1322config BOOT_ELF32 1323 bool 1324 1325config MIPS_L1_CACHE_SHIFT_4 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT_5 1329 bool 1330 1331config MIPS_L1_CACHE_SHIFT_6 1332 bool 1333 1334config MIPS_L1_CACHE_SHIFT_7 1335 bool 1336 1337config MIPS_L1_CACHE_SHIFT 1338 int 1339 default "7" if MIPS_L1_CACHE_SHIFT_7 1340 default "6" if MIPS_L1_CACHE_SHIFT_6 1341 default "5" if MIPS_L1_CACHE_SHIFT_5 1342 default "4" if MIPS_L1_CACHE_SHIFT_4 1343 default "5" 1344 1345config HAVE_STD_PC_SERIAL_PORT 1346 bool 1347 1348config ARC_CONSOLE 1349 bool "ARC console support" 1350 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1351 1352config ARC_MEMORY 1353 bool 1354 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1355 default y 1356 1357config ARC_PROMLIB 1358 bool 1359 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1360 default y 1361 1362config FW_ARC64 1363 bool 1364 1365config BOOT_ELF64 1366 bool 1367 1368menu "CPU selection" 1369 1370choice 1371 prompt "CPU type" 1372 default CPU_R4X00 1373 1374config CPU_LOONGSON3 1375 bool "Loongson 3 CPU" 1376 depends on SYS_HAS_CPU_LOONGSON3 1377 select ARCH_HAS_PHYS_TO_DMA 1378 select CPU_SUPPORTS_64BIT_KERNEL 1379 select CPU_SUPPORTS_HIGHMEM 1380 select CPU_SUPPORTS_HUGEPAGES 1381 select CPU_HAS_LOAD_STORE_LR 1382 select WEAK_ORDERING 1383 select WEAK_REORDERING_BEYOND_LLSC 1384 select MIPS_PGD_C0_CONTEXT 1385 select MIPS_L1_CACHE_SHIFT_6 1386 select GPIOLIB 1387 select SWIOTLB 1388 help 1389 The Loongson 3 processor implements the MIPS64R2 instruction 1390 set with many extensions. 1391 1392config LOONGSON3_ENHANCEMENT 1393 bool "New Loongson 3 CPU Enhancements" 1394 default n 1395 select CPU_MIPSR2 1396 select CPU_HAS_PREFETCH 1397 depends on CPU_LOONGSON3 1398 help 1399 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1400 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1401 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1402 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1403 Fast TLB refill support, etc. 1404 1405 This option enable those enhancements which are not probed at run 1406 time. If you want a generic kernel to run on all Loongson 3 machines, 1407 please say 'N' here. If you want a high-performance kernel to run on 1408 new Loongson 3 machines only, please say 'Y' here. 1409 1410config CPU_LOONGSON3_WORKAROUNDS 1411 bool "Old Loongson 3 LLSC Workarounds" 1412 default y if SMP 1413 depends on CPU_LOONGSON3 1414 help 1415 Loongson 3 processors have the llsc issues which require workarounds. 1416 Without workarounds the system may hang unexpectedly. 1417 1418 Newer Loongson 3 will fix these issues and no workarounds are needed. 1419 The workarounds have no significant side effect on them but may 1420 decrease the performance of the system so this option should be 1421 disabled unless the kernel is intended to be run on old systems. 1422 1423 If unsure, please say Y. 1424 1425config CPU_LOONGSON2E 1426 bool "Loongson 2E" 1427 depends on SYS_HAS_CPU_LOONGSON2E 1428 select CPU_LOONGSON2 1429 help 1430 The Loongson 2E processor implements the MIPS III instruction set 1431 with many extensions. 1432 1433 It has an internal FPGA northbridge, which is compatible to 1434 bonito64. 1435 1436config CPU_LOONGSON2F 1437 bool "Loongson 2F" 1438 depends on SYS_HAS_CPU_LOONGSON2F 1439 select CPU_LOONGSON2 1440 select GPIOLIB 1441 help 1442 The Loongson 2F processor implements the MIPS III instruction set 1443 with many extensions. 1444 1445 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1446 have a similar programming interface with FPGA northbridge used in 1447 Loongson2E. 1448 1449config CPU_LOONGSON1B 1450 bool "Loongson 1B" 1451 depends on SYS_HAS_CPU_LOONGSON1B 1452 select CPU_LOONGSON1 1453 select LEDS_GPIO_REGISTER 1454 help 1455 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1456 Release 1 instruction set and part of the MIPS32 Release 2 1457 instruction set. 1458 1459config CPU_LOONGSON1C 1460 bool "Loongson 1C" 1461 depends on SYS_HAS_CPU_LOONGSON1C 1462 select CPU_LOONGSON1 1463 select LEDS_GPIO_REGISTER 1464 help 1465 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1466 Release 1 instruction set and part of the MIPS32 Release 2 1467 instruction set. 1468 1469config CPU_MIPS32_R1 1470 bool "MIPS32 Release 1" 1471 depends on SYS_HAS_CPU_MIPS32_R1 1472 select CPU_HAS_PREFETCH 1473 select CPU_HAS_LOAD_STORE_LR 1474 select CPU_SUPPORTS_32BIT_KERNEL 1475 select CPU_SUPPORTS_HIGHMEM 1476 help 1477 Choose this option to build a kernel for release 1 or later of the 1478 MIPS32 architecture. Most modern embedded systems with a 32-bit 1479 MIPS processor are based on a MIPS32 processor. If you know the 1480 specific type of processor in your system, choose those that one 1481 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1482 Release 2 of the MIPS32 architecture is available since several 1483 years so chances are you even have a MIPS32 Release 2 processor 1484 in which case you should choose CPU_MIPS32_R2 instead for better 1485 performance. 1486 1487config CPU_MIPS32_R2 1488 bool "MIPS32 Release 2" 1489 depends on SYS_HAS_CPU_MIPS32_R2 1490 select CPU_HAS_PREFETCH 1491 select CPU_HAS_LOAD_STORE_LR 1492 select CPU_SUPPORTS_32BIT_KERNEL 1493 select CPU_SUPPORTS_HIGHMEM 1494 select CPU_SUPPORTS_MSA 1495 select HAVE_KVM 1496 help 1497 Choose this option to build a kernel for release 2 or later of the 1498 MIPS32 architecture. Most modern embedded systems with a 32-bit 1499 MIPS processor are based on a MIPS32 processor. If you know the 1500 specific type of processor in your system, choose those that one 1501 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1502 1503config CPU_MIPS32_R6 1504 bool "MIPS32 Release 6" 1505 depends on SYS_HAS_CPU_MIPS32_R6 1506 select CPU_HAS_PREFETCH 1507 select CPU_SUPPORTS_32BIT_KERNEL 1508 select CPU_SUPPORTS_HIGHMEM 1509 select CPU_SUPPORTS_MSA 1510 select HAVE_KVM 1511 select MIPS_O32_FP64_SUPPORT 1512 help 1513 Choose this option to build a kernel for release 6 or later of the 1514 MIPS32 architecture. New MIPS processors, starting with the Warrior 1515 family, are based on a MIPS32r6 processor. If you own an older 1516 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1517 1518config CPU_MIPS64_R1 1519 bool "MIPS64 Release 1" 1520 depends on SYS_HAS_CPU_MIPS64_R1 1521 select CPU_HAS_PREFETCH 1522 select CPU_HAS_LOAD_STORE_LR 1523 select CPU_SUPPORTS_32BIT_KERNEL 1524 select CPU_SUPPORTS_64BIT_KERNEL 1525 select CPU_SUPPORTS_HIGHMEM 1526 select CPU_SUPPORTS_HUGEPAGES 1527 help 1528 Choose this option to build a kernel for release 1 or later of the 1529 MIPS64 architecture. Many modern embedded systems with a 64-bit 1530 MIPS processor are based on a MIPS64 processor. If you know the 1531 specific type of processor in your system, choose those that one 1532 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1533 Release 2 of the MIPS64 architecture is available since several 1534 years so chances are you even have a MIPS64 Release 2 processor 1535 in which case you should choose CPU_MIPS64_R2 instead for better 1536 performance. 1537 1538config CPU_MIPS64_R2 1539 bool "MIPS64 Release 2" 1540 depends on SYS_HAS_CPU_MIPS64_R2 1541 select CPU_HAS_PREFETCH 1542 select CPU_HAS_LOAD_STORE_LR 1543 select CPU_SUPPORTS_32BIT_KERNEL 1544 select CPU_SUPPORTS_64BIT_KERNEL 1545 select CPU_SUPPORTS_HIGHMEM 1546 select CPU_SUPPORTS_HUGEPAGES 1547 select CPU_SUPPORTS_MSA 1548 select HAVE_KVM 1549 help 1550 Choose this option to build a kernel for release 2 or later of the 1551 MIPS64 architecture. Many modern embedded systems with a 64-bit 1552 MIPS processor are based on a MIPS64 processor. If you know the 1553 specific type of processor in your system, choose those that one 1554 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1555 1556config CPU_MIPS64_R6 1557 bool "MIPS64 Release 6" 1558 depends on SYS_HAS_CPU_MIPS64_R6 1559 select CPU_HAS_PREFETCH 1560 select CPU_SUPPORTS_32BIT_KERNEL 1561 select CPU_SUPPORTS_64BIT_KERNEL 1562 select CPU_SUPPORTS_HIGHMEM 1563 select CPU_SUPPORTS_HUGEPAGES 1564 select CPU_SUPPORTS_MSA 1565 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1566 select HAVE_KVM 1567 help 1568 Choose this option to build a kernel for release 6 or later of the 1569 MIPS64 architecture. New MIPS processors, starting with the Warrior 1570 family, are based on a MIPS64r6 processor. If you own an older 1571 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1572 1573config CPU_R3000 1574 bool "R3000" 1575 depends on SYS_HAS_CPU_R3000 1576 select CPU_HAS_WB 1577 select CPU_HAS_LOAD_STORE_LR 1578 select CPU_SUPPORTS_32BIT_KERNEL 1579 select CPU_SUPPORTS_HIGHMEM 1580 help 1581 Please make sure to pick the right CPU type. Linux/MIPS is not 1582 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1583 *not* work on R4000 machines and vice versa. However, since most 1584 of the supported machines have an R4000 (or similar) CPU, R4x00 1585 might be a safe bet. If the resulting kernel does not work, 1586 try to recompile with R3000. 1587 1588config CPU_TX39XX 1589 bool "R39XX" 1590 depends on SYS_HAS_CPU_TX39XX 1591 select CPU_SUPPORTS_32BIT_KERNEL 1592 select CPU_HAS_LOAD_STORE_LR 1593 1594config CPU_VR41XX 1595 bool "R41xx" 1596 depends on SYS_HAS_CPU_VR41XX 1597 select CPU_SUPPORTS_32BIT_KERNEL 1598 select CPU_SUPPORTS_64BIT_KERNEL 1599 select CPU_HAS_LOAD_STORE_LR 1600 help 1601 The options selects support for the NEC VR4100 series of processors. 1602 Only choose this option if you have one of these processors as a 1603 kernel built with this option will not run on any other type of 1604 processor or vice versa. 1605 1606config CPU_R4X00 1607 bool "R4x00" 1608 depends on SYS_HAS_CPU_R4X00 1609 select CPU_SUPPORTS_32BIT_KERNEL 1610 select CPU_SUPPORTS_64BIT_KERNEL 1611 select CPU_SUPPORTS_HUGEPAGES 1612 select CPU_HAS_LOAD_STORE_LR 1613 help 1614 MIPS Technologies R4000-series processors other than 4300, including 1615 the R4000, R4400, R4600, and 4700. 1616 1617config CPU_TX49XX 1618 bool "R49XX" 1619 depends on SYS_HAS_CPU_TX49XX 1620 select CPU_HAS_PREFETCH 1621 select CPU_HAS_LOAD_STORE_LR 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 select CPU_SUPPORTS_64BIT_KERNEL 1624 select CPU_SUPPORTS_HUGEPAGES 1625 1626config CPU_R5000 1627 bool "R5000" 1628 depends on SYS_HAS_CPU_R5000 1629 select CPU_SUPPORTS_32BIT_KERNEL 1630 select CPU_SUPPORTS_64BIT_KERNEL 1631 select CPU_SUPPORTS_HUGEPAGES 1632 select CPU_HAS_LOAD_STORE_LR 1633 help 1634 MIPS Technologies R5000-series processors other than the Nevada. 1635 1636config CPU_R5500 1637 bool "R5500" 1638 depends on SYS_HAS_CPU_R5500 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 select CPU_SUPPORTS_HUGEPAGES 1642 select CPU_HAS_LOAD_STORE_LR 1643 help 1644 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1645 instruction set. 1646 1647config CPU_NEVADA 1648 bool "RM52xx" 1649 depends on SYS_HAS_CPU_NEVADA 1650 select CPU_SUPPORTS_32BIT_KERNEL 1651 select CPU_SUPPORTS_64BIT_KERNEL 1652 select CPU_SUPPORTS_HUGEPAGES 1653 select CPU_HAS_LOAD_STORE_LR 1654 help 1655 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1656 1657config CPU_R10000 1658 bool "R10000" 1659 depends on SYS_HAS_CPU_R10000 1660 select CPU_HAS_PREFETCH 1661 select CPU_HAS_LOAD_STORE_LR 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_64BIT_KERNEL 1664 select CPU_SUPPORTS_HIGHMEM 1665 select CPU_SUPPORTS_HUGEPAGES 1666 help 1667 MIPS Technologies R10000-series processors. 1668 1669config CPU_RM7000 1670 bool "RM7000" 1671 depends on SYS_HAS_CPU_RM7000 1672 select CPU_HAS_PREFETCH 1673 select CPU_HAS_LOAD_STORE_LR 1674 select CPU_SUPPORTS_32BIT_KERNEL 1675 select CPU_SUPPORTS_64BIT_KERNEL 1676 select CPU_SUPPORTS_HIGHMEM 1677 select CPU_SUPPORTS_HUGEPAGES 1678 1679config CPU_SB1 1680 bool "SB1" 1681 depends on SYS_HAS_CPU_SB1 1682 select CPU_HAS_LOAD_STORE_LR 1683 select CPU_SUPPORTS_32BIT_KERNEL 1684 select CPU_SUPPORTS_64BIT_KERNEL 1685 select CPU_SUPPORTS_HIGHMEM 1686 select CPU_SUPPORTS_HUGEPAGES 1687 select WEAK_ORDERING 1688 1689config CPU_CAVIUM_OCTEON 1690 bool "Cavium Octeon processor" 1691 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1692 select CPU_HAS_PREFETCH 1693 select CPU_HAS_LOAD_STORE_LR 1694 select CPU_SUPPORTS_64BIT_KERNEL 1695 select WEAK_ORDERING 1696 select CPU_SUPPORTS_HIGHMEM 1697 select CPU_SUPPORTS_HUGEPAGES 1698 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1699 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1700 select MIPS_L1_CACHE_SHIFT_7 1701 select HAVE_KVM 1702 help 1703 The Cavium Octeon processor is a highly integrated chip containing 1704 many ethernet hardware widgets for networking tasks. The processor 1705 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1706 Full details can be found at http://www.caviumnetworks.com. 1707 1708config CPU_BMIPS 1709 bool "Broadcom BMIPS" 1710 depends on SYS_HAS_CPU_BMIPS 1711 select CPU_MIPS32 1712 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1713 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1714 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1715 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1716 select CPU_SUPPORTS_32BIT_KERNEL 1717 select DMA_NONCOHERENT 1718 select IRQ_MIPS_CPU 1719 select SWAP_IO_SPACE 1720 select WEAK_ORDERING 1721 select CPU_SUPPORTS_HIGHMEM 1722 select CPU_HAS_PREFETCH 1723 select CPU_HAS_LOAD_STORE_LR 1724 select CPU_SUPPORTS_CPUFREQ 1725 select MIPS_EXTERNAL_TIMER 1726 help 1727 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1728 1729config CPU_XLR 1730 bool "Netlogic XLR SoC" 1731 depends on SYS_HAS_CPU_XLR 1732 select CPU_HAS_LOAD_STORE_LR 1733 select CPU_SUPPORTS_32BIT_KERNEL 1734 select CPU_SUPPORTS_64BIT_KERNEL 1735 select CPU_SUPPORTS_HIGHMEM 1736 select CPU_SUPPORTS_HUGEPAGES 1737 select WEAK_ORDERING 1738 select WEAK_REORDERING_BEYOND_LLSC 1739 help 1740 Netlogic Microsystems XLR/XLS processors. 1741 1742config CPU_XLP 1743 bool "Netlogic XLP SoC" 1744 depends on SYS_HAS_CPU_XLP 1745 select CPU_SUPPORTS_32BIT_KERNEL 1746 select CPU_SUPPORTS_64BIT_KERNEL 1747 select CPU_SUPPORTS_HIGHMEM 1748 select WEAK_ORDERING 1749 select WEAK_REORDERING_BEYOND_LLSC 1750 select CPU_HAS_PREFETCH 1751 select CPU_HAS_LOAD_STORE_LR 1752 select CPU_MIPSR2 1753 select CPU_SUPPORTS_HUGEPAGES 1754 select MIPS_ASID_BITS_VARIABLE 1755 help 1756 Netlogic Microsystems XLP processors. 1757endchoice 1758 1759config CPU_MIPS32_3_5_FEATURES 1760 bool "MIPS32 Release 3.5 Features" 1761 depends on SYS_HAS_CPU_MIPS32_R3_5 1762 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1763 help 1764 Choose this option to build a kernel for release 2 or later of the 1765 MIPS32 architecture including features from the 3.5 release such as 1766 support for Enhanced Virtual Addressing (EVA). 1767 1768config CPU_MIPS32_3_5_EVA 1769 bool "Enhanced Virtual Addressing (EVA)" 1770 depends on CPU_MIPS32_3_5_FEATURES 1771 select EVA 1772 default y 1773 help 1774 Choose this option if you want to enable the Enhanced Virtual 1775 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1776 One of its primary benefits is an increase in the maximum size 1777 of lowmem (up to 3GB). If unsure, say 'N' here. 1778 1779config CPU_MIPS32_R5_FEATURES 1780 bool "MIPS32 Release 5 Features" 1781 depends on SYS_HAS_CPU_MIPS32_R5 1782 depends on CPU_MIPS32_R2 1783 help 1784 Choose this option to build a kernel for release 2 or later of the 1785 MIPS32 architecture including features from release 5 such as 1786 support for Extended Physical Addressing (XPA). 1787 1788config CPU_MIPS32_R5_XPA 1789 bool "Extended Physical Addressing (XPA)" 1790 depends on CPU_MIPS32_R5_FEATURES 1791 depends on !EVA 1792 depends on !PAGE_SIZE_4KB 1793 depends on SYS_SUPPORTS_HIGHMEM 1794 select XPA 1795 select HIGHMEM 1796 select PHYS_ADDR_T_64BIT 1797 default n 1798 help 1799 Choose this option if you want to enable the Extended Physical 1800 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1801 benefit is to increase physical addressing equal to or greater 1802 than 40 bits. Note that this has the side effect of turning on 1803 64-bit addressing which in turn makes the PTEs 64-bit in size. 1804 If unsure, say 'N' here. 1805 1806if CPU_LOONGSON2F 1807config CPU_NOP_WORKAROUNDS 1808 bool 1809 1810config CPU_JUMP_WORKAROUNDS 1811 bool 1812 1813config CPU_LOONGSON2F_WORKAROUNDS 1814 bool "Loongson 2F Workarounds" 1815 default y 1816 select CPU_NOP_WORKAROUNDS 1817 select CPU_JUMP_WORKAROUNDS 1818 help 1819 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1820 require workarounds. Without workarounds the system may hang 1821 unexpectedly. For more information please refer to the gas 1822 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1823 1824 Loongson 2F03 and later have fixed these issues and no workarounds 1825 are needed. The workarounds have no significant side effect on them 1826 but may decrease the performance of the system so this option should 1827 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1828 systems. 1829 1830 If unsure, please say Y. 1831endif # CPU_LOONGSON2F 1832 1833config SYS_SUPPORTS_ZBOOT 1834 bool 1835 select HAVE_KERNEL_GZIP 1836 select HAVE_KERNEL_BZIP2 1837 select HAVE_KERNEL_LZ4 1838 select HAVE_KERNEL_LZMA 1839 select HAVE_KERNEL_LZO 1840 select HAVE_KERNEL_XZ 1841 1842config SYS_SUPPORTS_ZBOOT_UART16550 1843 bool 1844 select SYS_SUPPORTS_ZBOOT 1845 1846config SYS_SUPPORTS_ZBOOT_UART_PROM 1847 bool 1848 select SYS_SUPPORTS_ZBOOT 1849 1850config CPU_LOONGSON2 1851 bool 1852 select CPU_SUPPORTS_32BIT_KERNEL 1853 select CPU_SUPPORTS_64BIT_KERNEL 1854 select CPU_SUPPORTS_HIGHMEM 1855 select CPU_SUPPORTS_HUGEPAGES 1856 select ARCH_HAS_PHYS_TO_DMA 1857 select CPU_HAS_LOAD_STORE_LR 1858 1859config CPU_LOONGSON1 1860 bool 1861 select CPU_MIPS32 1862 select CPU_MIPSR2 1863 select CPU_HAS_PREFETCH 1864 select CPU_HAS_LOAD_STORE_LR 1865 select CPU_SUPPORTS_32BIT_KERNEL 1866 select CPU_SUPPORTS_HIGHMEM 1867 select CPU_SUPPORTS_CPUFREQ 1868 1869config CPU_BMIPS32_3300 1870 select SMP_UP if SMP 1871 bool 1872 1873config CPU_BMIPS4350 1874 bool 1875 select SYS_SUPPORTS_SMP 1876 select SYS_SUPPORTS_HOTPLUG_CPU 1877 1878config CPU_BMIPS4380 1879 bool 1880 select MIPS_L1_CACHE_SHIFT_6 1881 select SYS_SUPPORTS_SMP 1882 select SYS_SUPPORTS_HOTPLUG_CPU 1883 select CPU_HAS_RIXI 1884 1885config CPU_BMIPS5000 1886 bool 1887 select MIPS_CPU_SCACHE 1888 select MIPS_L1_CACHE_SHIFT_7 1889 select SYS_SUPPORTS_SMP 1890 select SYS_SUPPORTS_HOTPLUG_CPU 1891 select CPU_HAS_RIXI 1892 1893config SYS_HAS_CPU_LOONGSON3 1894 bool 1895 select CPU_SUPPORTS_CPUFREQ 1896 select CPU_HAS_RIXI 1897 1898config SYS_HAS_CPU_LOONGSON2E 1899 bool 1900 1901config SYS_HAS_CPU_LOONGSON2F 1902 bool 1903 select CPU_SUPPORTS_CPUFREQ 1904 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1905 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1906 1907config SYS_HAS_CPU_LOONGSON1B 1908 bool 1909 1910config SYS_HAS_CPU_LOONGSON1C 1911 bool 1912 1913config SYS_HAS_CPU_MIPS32_R1 1914 bool 1915 1916config SYS_HAS_CPU_MIPS32_R2 1917 bool 1918 1919config SYS_HAS_CPU_MIPS32_R3_5 1920 bool 1921 1922config SYS_HAS_CPU_MIPS32_R5 1923 bool 1924 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1925 1926config SYS_HAS_CPU_MIPS32_R6 1927 bool 1928 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1929 1930config SYS_HAS_CPU_MIPS64_R1 1931 bool 1932 1933config SYS_HAS_CPU_MIPS64_R2 1934 bool 1935 1936config SYS_HAS_CPU_MIPS64_R6 1937 bool 1938 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1939 1940config SYS_HAS_CPU_R3000 1941 bool 1942 1943config SYS_HAS_CPU_TX39XX 1944 bool 1945 1946config SYS_HAS_CPU_VR41XX 1947 bool 1948 1949config SYS_HAS_CPU_R4X00 1950 bool 1951 1952config SYS_HAS_CPU_TX49XX 1953 bool 1954 1955config SYS_HAS_CPU_R5000 1956 bool 1957 1958config SYS_HAS_CPU_R5500 1959 bool 1960 1961config SYS_HAS_CPU_NEVADA 1962 bool 1963 1964config SYS_HAS_CPU_R10000 1965 bool 1966 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1967 1968config SYS_HAS_CPU_RM7000 1969 bool 1970 1971config SYS_HAS_CPU_SB1 1972 bool 1973 1974config SYS_HAS_CPU_CAVIUM_OCTEON 1975 bool 1976 1977config SYS_HAS_CPU_BMIPS 1978 bool 1979 1980config SYS_HAS_CPU_BMIPS32_3300 1981 bool 1982 select SYS_HAS_CPU_BMIPS 1983 1984config SYS_HAS_CPU_BMIPS4350 1985 bool 1986 select SYS_HAS_CPU_BMIPS 1987 1988config SYS_HAS_CPU_BMIPS4380 1989 bool 1990 select SYS_HAS_CPU_BMIPS 1991 1992config SYS_HAS_CPU_BMIPS5000 1993 bool 1994 select SYS_HAS_CPU_BMIPS 1995 select ARCH_HAS_SYNC_DMA_FOR_CPU 1996 1997config SYS_HAS_CPU_XLR 1998 bool 1999 2000config SYS_HAS_CPU_XLP 2001 bool 2002 2003# 2004# CPU may reorder R->R, R->W, W->R, W->W 2005# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2006# 2007config WEAK_ORDERING 2008 bool 2009 2010# 2011# CPU may reorder reads and writes beyond LL/SC 2012# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2013# 2014config WEAK_REORDERING_BEYOND_LLSC 2015 bool 2016endmenu 2017 2018# 2019# These two indicate any level of the MIPS32 and MIPS64 architecture 2020# 2021config CPU_MIPS32 2022 bool 2023 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2024 2025config CPU_MIPS64 2026 bool 2027 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2028 2029# 2030# These indicate the revision of the architecture 2031# 2032config CPU_MIPSR1 2033 bool 2034 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2035 2036config CPU_MIPSR2 2037 bool 2038 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2039 select CPU_HAS_RIXI 2040 select MIPS_SPRAM 2041 2042config CPU_MIPSR6 2043 bool 2044 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2045 select CPU_HAS_RIXI 2046 select HAVE_ARCH_BITREVERSE 2047 select MIPS_ASID_BITS_VARIABLE 2048 select MIPS_CRC_SUPPORT 2049 select MIPS_SPRAM 2050 2051config TARGET_ISA_REV 2052 int 2053 default 1 if CPU_MIPSR1 2054 default 2 if CPU_MIPSR2 2055 default 6 if CPU_MIPSR6 2056 default 0 2057 help 2058 Reflects the ISA revision being targeted by the kernel build. This 2059 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2060 2061config EVA 2062 bool 2063 2064config XPA 2065 bool 2066 2067config SYS_SUPPORTS_32BIT_KERNEL 2068 bool 2069config SYS_SUPPORTS_64BIT_KERNEL 2070 bool 2071config CPU_SUPPORTS_32BIT_KERNEL 2072 bool 2073config CPU_SUPPORTS_64BIT_KERNEL 2074 bool 2075config CPU_SUPPORTS_CPUFREQ 2076 bool 2077config CPU_SUPPORTS_ADDRWINCFG 2078 bool 2079config CPU_SUPPORTS_HUGEPAGES 2080 bool 2081 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2082config CPU_SUPPORTS_UNCACHED_ACCELERATED 2083 bool 2084config MIPS_PGD_C0_CONTEXT 2085 bool 2086 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2087 2088# 2089# Set to y for ptrace access to watch registers. 2090# 2091config HARDWARE_WATCHPOINTS 2092 bool 2093 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2094 2095menu "Kernel type" 2096 2097choice 2098 prompt "Kernel code model" 2099 help 2100 You should only select this option if you have a workload that 2101 actually benefits from 64-bit processing or if your machine has 2102 large memory. You will only be presented a single option in this 2103 menu if your system does not support both 32-bit and 64-bit kernels. 2104 2105config 32BIT 2106 bool "32-bit kernel" 2107 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2108 select TRAD_SIGNALS 2109 help 2110 Select this option if you want to build a 32-bit kernel. 2111 2112config 64BIT 2113 bool "64-bit kernel" 2114 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2115 help 2116 Select this option if you want to build a 64-bit kernel. 2117 2118endchoice 2119 2120config KVM_GUEST 2121 bool "KVM Guest Kernel" 2122 depends on BROKEN_ON_SMP 2123 help 2124 Select this option if building a guest kernel for KVM (Trap & Emulate) 2125 mode. 2126 2127config KVM_GUEST_TIMER_FREQ 2128 int "Count/Compare Timer Frequency (MHz)" 2129 depends on KVM_GUEST 2130 default 100 2131 help 2132 Set this to non-zero if building a guest kernel for KVM to skip RTC 2133 emulation when determining guest CPU Frequency. Instead, the guest's 2134 timer frequency is specified directly. 2135 2136config MIPS_VA_BITS_48 2137 bool "48 bits virtual memory" 2138 depends on 64BIT 2139 help 2140 Support a maximum at least 48 bits of application virtual 2141 memory. Default is 40 bits or less, depending on the CPU. 2142 For page sizes 16k and above, this option results in a small 2143 memory overhead for page tables. For 4k page size, a fourth 2144 level of page tables is added which imposes both a memory 2145 overhead as well as slower TLB fault handling. 2146 2147 If unsure, say N. 2148 2149choice 2150 prompt "Kernel page size" 2151 default PAGE_SIZE_4KB 2152 2153config PAGE_SIZE_4KB 2154 bool "4kB" 2155 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2156 help 2157 This option select the standard 4kB Linux page size. On some 2158 R3000-family processors this is the only available page size. Using 2159 4kB page size will minimize memory consumption and is therefore 2160 recommended for low memory systems. 2161 2162config PAGE_SIZE_8KB 2163 bool "8kB" 2164 depends on CPU_CAVIUM_OCTEON 2165 depends on !MIPS_VA_BITS_48 2166 help 2167 Using 8kB page size will result in higher performance kernel at 2168 the price of higher memory consumption. This option is available 2169 only on cnMIPS processors. Note that you will need a suitable Linux 2170 distribution to support this. 2171 2172config PAGE_SIZE_16KB 2173 bool "16kB" 2174 depends on !CPU_R3000 && !CPU_TX39XX 2175 help 2176 Using 16kB page size will result in higher performance kernel at 2177 the price of higher memory consumption. This option is available on 2178 all non-R3000 family processors. Note that you will need a suitable 2179 Linux distribution to support this. 2180 2181config PAGE_SIZE_32KB 2182 bool "32kB" 2183 depends on CPU_CAVIUM_OCTEON 2184 depends on !MIPS_VA_BITS_48 2185 help 2186 Using 32kB page size will result in higher performance kernel at 2187 the price of higher memory consumption. This option is available 2188 only on cnMIPS cores. Note that you will need a suitable Linux 2189 distribution to support this. 2190 2191config PAGE_SIZE_64KB 2192 bool "64kB" 2193 depends on !CPU_R3000 && !CPU_TX39XX 2194 help 2195 Using 64kB page size will result in higher performance kernel at 2196 the price of higher memory consumption. This option is available on 2197 all non-R3000 family processor. Not that at the time of this 2198 writing this option is still high experimental. 2199 2200endchoice 2201 2202config FORCE_MAX_ZONEORDER 2203 int "Maximum zone order" 2204 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2205 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2206 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2207 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2208 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2209 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2210 range 11 64 2211 default "11" 2212 help 2213 The kernel memory allocator divides physically contiguous memory 2214 blocks into "zones", where each zone is a power of two number of 2215 pages. This option selects the largest power of two that the kernel 2216 keeps in the memory allocator. If you need to allocate very large 2217 blocks of physically contiguous memory, then you may need to 2218 increase this value. 2219 2220 This config option is actually maximum order plus one. For example, 2221 a value of 11 means that the largest free memory block is 2^10 pages. 2222 2223 The page size is not necessarily 4KB. Keep this in mind 2224 when choosing a value for this option. 2225 2226config BOARD_SCACHE 2227 bool 2228 2229config IP22_CPU_SCACHE 2230 bool 2231 select BOARD_SCACHE 2232 2233# 2234# Support for a MIPS32 / MIPS64 style S-caches 2235# 2236config MIPS_CPU_SCACHE 2237 bool 2238 select BOARD_SCACHE 2239 2240config R5000_CPU_SCACHE 2241 bool 2242 select BOARD_SCACHE 2243 2244config RM7000_CPU_SCACHE 2245 bool 2246 select BOARD_SCACHE 2247 2248config SIBYTE_DMA_PAGEOPS 2249 bool "Use DMA to clear/copy pages" 2250 depends on CPU_SB1 2251 help 2252 Instead of using the CPU to zero and copy pages, use a Data Mover 2253 channel. These DMA channels are otherwise unused by the standard 2254 SiByte Linux port. Seems to give a small performance benefit. 2255 2256config CPU_HAS_PREFETCH 2257 bool 2258 2259config CPU_GENERIC_DUMP_TLB 2260 bool 2261 default y if !(CPU_R3000 || CPU_TX39XX) 2262 2263config MIPS_FP_SUPPORT 2264 bool "Floating Point support" if EXPERT 2265 default y 2266 help 2267 Select y to include support for floating point in the kernel 2268 including initialization of FPU hardware, FP context save & restore 2269 and emulation of an FPU where necessary. Without this support any 2270 userland program attempting to use floating point instructions will 2271 receive a SIGILL. 2272 2273 If you know that your userland will not attempt to use floating point 2274 instructions then you can say n here to shrink the kernel a little. 2275 2276 If unsure, say y. 2277 2278config CPU_R2300_FPU 2279 bool 2280 depends on MIPS_FP_SUPPORT 2281 default y if CPU_R3000 || CPU_TX39XX 2282 2283config CPU_R4K_FPU 2284 bool 2285 depends on MIPS_FP_SUPPORT 2286 default y if !CPU_R2300_FPU 2287 2288config CPU_R4K_CACHE_TLB 2289 bool 2290 default y if !(CPU_R3000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2291 2292config MIPS_MT_SMP 2293 bool "MIPS MT SMP support (1 TC on each available VPE)" 2294 default y 2295 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2296 select CPU_MIPSR2_IRQ_VI 2297 select CPU_MIPSR2_IRQ_EI 2298 select SYNC_R4K 2299 select MIPS_MT 2300 select SMP 2301 select SMP_UP 2302 select SYS_SUPPORTS_SMP 2303 select SYS_SUPPORTS_SCHED_SMT 2304 select MIPS_PERF_SHARED_TC_COUNTERS 2305 help 2306 This is a kernel model which is known as SMVP. This is supported 2307 on cores with the MT ASE and uses the available VPEs to implement 2308 virtual processors which supports SMP. This is equivalent to the 2309 Intel Hyperthreading feature. For further information go to 2310 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2311 2312config MIPS_MT 2313 bool 2314 2315config SCHED_SMT 2316 bool "SMT (multithreading) scheduler support" 2317 depends on SYS_SUPPORTS_SCHED_SMT 2318 default n 2319 help 2320 SMT scheduler support improves the CPU scheduler's decision making 2321 when dealing with MIPS MT enabled cores at a cost of slightly 2322 increased overhead in some places. If unsure say N here. 2323 2324config SYS_SUPPORTS_SCHED_SMT 2325 bool 2326 2327config SYS_SUPPORTS_MULTITHREADING 2328 bool 2329 2330config MIPS_MT_FPAFF 2331 bool "Dynamic FPU affinity for FP-intensive threads" 2332 default y 2333 depends on MIPS_MT_SMP 2334 2335config MIPSR2_TO_R6_EMULATOR 2336 bool "MIPS R2-to-R6 emulator" 2337 depends on CPU_MIPSR6 2338 depends on MIPS_FP_SUPPORT 2339 default y 2340 help 2341 Choose this option if you want to run non-R6 MIPS userland code. 2342 Even if you say 'Y' here, the emulator will still be disabled by 2343 default. You can enable it using the 'mipsr2emu' kernel option. 2344 The only reason this is a build-time option is to save ~14K from the 2345 final kernel image. 2346 2347config SYS_SUPPORTS_VPE_LOADER 2348 bool 2349 depends on SYS_SUPPORTS_MULTITHREADING 2350 help 2351 Indicates that the platform supports the VPE loader, and provides 2352 physical_memsize. 2353 2354config MIPS_VPE_LOADER 2355 bool "VPE loader support." 2356 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2357 select CPU_MIPSR2_IRQ_VI 2358 select CPU_MIPSR2_IRQ_EI 2359 select MIPS_MT 2360 help 2361 Includes a loader for loading an elf relocatable object 2362 onto another VPE and running it. 2363 2364config MIPS_VPE_LOADER_CMP 2365 bool 2366 default "y" 2367 depends on MIPS_VPE_LOADER && MIPS_CMP 2368 2369config MIPS_VPE_LOADER_MT 2370 bool 2371 default "y" 2372 depends on MIPS_VPE_LOADER && !MIPS_CMP 2373 2374config MIPS_VPE_LOADER_TOM 2375 bool "Load VPE program into memory hidden from linux" 2376 depends on MIPS_VPE_LOADER 2377 default y 2378 help 2379 The loader can use memory that is present but has been hidden from 2380 Linux using the kernel command line option "mem=xxMB". It's up to 2381 you to ensure the amount you put in the option and the space your 2382 program requires is less or equal to the amount physically present. 2383 2384config MIPS_VPE_APSP_API 2385 bool "Enable support for AP/SP API (RTLX)" 2386 depends on MIPS_VPE_LOADER 2387 2388config MIPS_VPE_APSP_API_CMP 2389 bool 2390 default "y" 2391 depends on MIPS_VPE_APSP_API && MIPS_CMP 2392 2393config MIPS_VPE_APSP_API_MT 2394 bool 2395 default "y" 2396 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2397 2398config MIPS_CMP 2399 bool "MIPS CMP framework support (DEPRECATED)" 2400 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2401 select SMP 2402 select SYNC_R4K 2403 select SYS_SUPPORTS_SMP 2404 select WEAK_ORDERING 2405 default n 2406 help 2407 Select this if you are using a bootloader which implements the "CMP 2408 framework" protocol (ie. YAMON) and want your kernel to make use of 2409 its ability to start secondary CPUs. 2410 2411 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2412 instead of this. 2413 2414config MIPS_CPS 2415 bool "MIPS Coherent Processing System support" 2416 depends on SYS_SUPPORTS_MIPS_CPS 2417 select MIPS_CM 2418 select MIPS_CPS_PM if HOTPLUG_CPU 2419 select SMP 2420 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2421 select SYS_SUPPORTS_HOTPLUG_CPU 2422 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2423 select SYS_SUPPORTS_SMP 2424 select WEAK_ORDERING 2425 help 2426 Select this if you wish to run an SMP kernel across multiple cores 2427 within a MIPS Coherent Processing System. When this option is 2428 enabled the kernel will probe for other cores and boot them with 2429 no external assistance. It is safe to enable this when hardware 2430 support is unavailable. 2431 2432config MIPS_CPS_PM 2433 depends on MIPS_CPS 2434 bool 2435 2436config MIPS_CM 2437 bool 2438 select MIPS_CPC 2439 2440config MIPS_CPC 2441 bool 2442 2443config SB1_PASS_2_WORKAROUNDS 2444 bool 2445 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2446 default y 2447 2448config SB1_PASS_2_1_WORKAROUNDS 2449 bool 2450 depends on CPU_SB1 && CPU_SB1_PASS_2 2451 default y 2452 2453choice 2454 prompt "SmartMIPS or microMIPS ASE support" 2455 2456config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2457 bool "None" 2458 help 2459 Select this if you want neither microMIPS nor SmartMIPS support 2460 2461config CPU_HAS_SMARTMIPS 2462 depends on SYS_SUPPORTS_SMARTMIPS 2463 bool "SmartMIPS" 2464 help 2465 SmartMIPS is a extension of the MIPS32 architecture aimed at 2466 increased security at both hardware and software level for 2467 smartcards. Enabling this option will allow proper use of the 2468 SmartMIPS instructions by Linux applications. However a kernel with 2469 this option will not work on a MIPS core without SmartMIPS core. If 2470 you don't know you probably don't have SmartMIPS and should say N 2471 here. 2472 2473config CPU_MICROMIPS 2474 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2475 bool "microMIPS" 2476 help 2477 When this option is enabled the kernel will be built using the 2478 microMIPS ISA 2479 2480endchoice 2481 2482config CPU_HAS_MSA 2483 bool "Support for the MIPS SIMD Architecture" 2484 depends on CPU_SUPPORTS_MSA 2485 depends on MIPS_FP_SUPPORT 2486 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2487 help 2488 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2489 and a set of SIMD instructions to operate on them. When this option 2490 is enabled the kernel will support allocating & switching MSA 2491 vector register contexts. If you know that your kernel will only be 2492 running on CPUs which do not support MSA or that your userland will 2493 not be making use of it then you may wish to say N here to reduce 2494 the size & complexity of your kernel. 2495 2496 If unsure, say Y. 2497 2498config CPU_HAS_WB 2499 bool 2500 2501config XKS01 2502 bool 2503 2504config CPU_HAS_RIXI 2505 bool 2506 2507config CPU_HAS_LOAD_STORE_LR 2508 bool 2509 help 2510 CPU has support for unaligned load and store instructions: 2511 LWL, LWR, SWL, SWR (Load/store word left/right). 2512 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2513 2514# 2515# Vectored interrupt mode is an R2 feature 2516# 2517config CPU_MIPSR2_IRQ_VI 2518 bool 2519 2520# 2521# Extended interrupt mode is an R2 feature 2522# 2523config CPU_MIPSR2_IRQ_EI 2524 bool 2525 2526config CPU_HAS_SYNC 2527 bool 2528 depends on !CPU_R3000 2529 default y 2530 2531# 2532# CPU non-features 2533# 2534config CPU_DADDI_WORKAROUNDS 2535 bool 2536 2537config CPU_R4000_WORKAROUNDS 2538 bool 2539 select CPU_R4400_WORKAROUNDS 2540 2541config CPU_R4400_WORKAROUNDS 2542 bool 2543 2544config MIPS_ASID_SHIFT 2545 int 2546 default 6 if CPU_R3000 || CPU_TX39XX 2547 default 0 2548 2549config MIPS_ASID_BITS 2550 int 2551 default 0 if MIPS_ASID_BITS_VARIABLE 2552 default 6 if CPU_R3000 || CPU_TX39XX 2553 default 8 2554 2555config MIPS_ASID_BITS_VARIABLE 2556 bool 2557 2558config MIPS_CRC_SUPPORT 2559 bool 2560 2561# 2562# - Highmem only makes sense for the 32-bit kernel. 2563# - The current highmem code will only work properly on physically indexed 2564# caches such as R3000, SB1, R7000 or those that look like they're virtually 2565# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2566# moment we protect the user and offer the highmem option only on machines 2567# where it's known to be safe. This will not offer highmem on a few systems 2568# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2569# indexed CPUs but we're playing safe. 2570# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2571# know they might have memory configurations that could make use of highmem 2572# support. 2573# 2574config HIGHMEM 2575 bool "High Memory Support" 2576 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2577 2578config CPU_SUPPORTS_HIGHMEM 2579 bool 2580 2581config SYS_SUPPORTS_HIGHMEM 2582 bool 2583 2584config SYS_SUPPORTS_SMARTMIPS 2585 bool 2586 2587config SYS_SUPPORTS_MICROMIPS 2588 bool 2589 2590config SYS_SUPPORTS_MIPS16 2591 bool 2592 help 2593 This option must be set if a kernel might be executed on a MIPS16- 2594 enabled CPU even if MIPS16 is not actually being used. In other 2595 words, it makes the kernel MIPS16-tolerant. 2596 2597config CPU_SUPPORTS_MSA 2598 bool 2599 2600config ARCH_FLATMEM_ENABLE 2601 def_bool y 2602 depends on !NUMA && !CPU_LOONGSON2 2603 2604config ARCH_DISCONTIGMEM_ENABLE 2605 bool 2606 default y if SGI_IP27 2607 help 2608 Say Y to support efficient handling of discontiguous physical memory, 2609 for architectures which are either NUMA (Non-Uniform Memory Access) 2610 or have huge holes in the physical address space for other reasons. 2611 See <file:Documentation/vm/numa.rst> for more. 2612 2613config ARCH_SPARSEMEM_ENABLE 2614 bool 2615 select SPARSEMEM_STATIC 2616 2617config NUMA 2618 bool "NUMA Support" 2619 depends on SYS_SUPPORTS_NUMA 2620 help 2621 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2622 Access). This option improves performance on systems with more 2623 than two nodes; on two node systems it is generally better to 2624 leave it disabled; on single node systems disable this option 2625 disabled. 2626 2627config SYS_SUPPORTS_NUMA 2628 bool 2629 2630config RELOCATABLE 2631 bool "Relocatable kernel" 2632 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2633 help 2634 This builds a kernel image that retains relocation information 2635 so it can be loaded someplace besides the default 1MB. 2636 The relocations make the kernel binary about 15% larger, 2637 but are discarded at runtime 2638 2639config RELOCATION_TABLE_SIZE 2640 hex "Relocation table size" 2641 depends on RELOCATABLE 2642 range 0x0 0x01000000 2643 default "0x00100000" 2644 ---help--- 2645 A table of relocation data will be appended to the kernel binary 2646 and parsed at boot to fix up the relocated kernel. 2647 2648 This option allows the amount of space reserved for the table to be 2649 adjusted, although the default of 1Mb should be ok in most cases. 2650 2651 The build will fail and a valid size suggested if this is too small. 2652 2653 If unsure, leave at the default value. 2654 2655config RANDOMIZE_BASE 2656 bool "Randomize the address of the kernel image" 2657 depends on RELOCATABLE 2658 ---help--- 2659 Randomizes the physical and virtual address at which the 2660 kernel image is loaded, as a security feature that 2661 deters exploit attempts relying on knowledge of the location 2662 of kernel internals. 2663 2664 Entropy is generated using any coprocessor 0 registers available. 2665 2666 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2667 2668 If unsure, say N. 2669 2670config RANDOMIZE_BASE_MAX_OFFSET 2671 hex "Maximum kASLR offset" if EXPERT 2672 depends on RANDOMIZE_BASE 2673 range 0x0 0x40000000 if EVA || 64BIT 2674 range 0x0 0x08000000 2675 default "0x01000000" 2676 ---help--- 2677 When kASLR is active, this provides the maximum offset that will 2678 be applied to the kernel image. It should be set according to the 2679 amount of physical RAM available in the target system minus 2680 PHYSICAL_START and must be a power of 2. 2681 2682 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2683 EVA or 64-bit. The default is 16Mb. 2684 2685config NODES_SHIFT 2686 int 2687 default "6" 2688 depends on NEED_MULTIPLE_NODES 2689 2690config HW_PERF_EVENTS 2691 bool "Enable hardware performance counter support for perf events" 2692 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2693 default y 2694 help 2695 Enable hardware performance counter support for perf events. If 2696 disabled, perf events will use software events only. 2697 2698config SMP 2699 bool "Multi-Processing support" 2700 depends on SYS_SUPPORTS_SMP 2701 help 2702 This enables support for systems with more than one CPU. If you have 2703 a system with only one CPU, say N. If you have a system with more 2704 than one CPU, say Y. 2705 2706 If you say N here, the kernel will run on uni- and multiprocessor 2707 machines, but will use only one CPU of a multiprocessor machine. If 2708 you say Y here, the kernel will run on many, but not all, 2709 uniprocessor machines. On a uniprocessor machine, the kernel 2710 will run faster if you say N here. 2711 2712 People using multiprocessor machines who say Y here should also say 2713 Y to "Enhanced Real Time Clock Support", below. 2714 2715 See also the SMP-HOWTO available at 2716 <http://www.tldp.org/docs.html#howto>. 2717 2718 If you don't know what to do here, say N. 2719 2720config HOTPLUG_CPU 2721 bool "Support for hot-pluggable CPUs" 2722 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2723 help 2724 Say Y here to allow turning CPUs off and on. CPUs can be 2725 controlled through /sys/devices/system/cpu. 2726 (Note: power management support will enable this option 2727 automatically on SMP systems. ) 2728 Say N if you want to disable CPU hotplug. 2729 2730config SMP_UP 2731 bool 2732 2733config SYS_SUPPORTS_MIPS_CMP 2734 bool 2735 2736config SYS_SUPPORTS_MIPS_CPS 2737 bool 2738 2739config SYS_SUPPORTS_SMP 2740 bool 2741 2742config NR_CPUS_DEFAULT_4 2743 bool 2744 2745config NR_CPUS_DEFAULT_8 2746 bool 2747 2748config NR_CPUS_DEFAULT_16 2749 bool 2750 2751config NR_CPUS_DEFAULT_32 2752 bool 2753 2754config NR_CPUS_DEFAULT_64 2755 bool 2756 2757config NR_CPUS 2758 int "Maximum number of CPUs (2-256)" 2759 range 2 256 2760 depends on SMP 2761 default "4" if NR_CPUS_DEFAULT_4 2762 default "8" if NR_CPUS_DEFAULT_8 2763 default "16" if NR_CPUS_DEFAULT_16 2764 default "32" if NR_CPUS_DEFAULT_32 2765 default "64" if NR_CPUS_DEFAULT_64 2766 help 2767 This allows you to specify the maximum number of CPUs which this 2768 kernel will support. The maximum supported value is 32 for 32-bit 2769 kernel and 64 for 64-bit kernels; the minimum value which makes 2770 sense is 1 for Qemu (useful only for kernel debugging purposes) 2771 and 2 for all others. 2772 2773 This is purely to save memory - each supported CPU adds 2774 approximately eight kilobytes to the kernel image. For best 2775 performance should round up your number of processors to the next 2776 power of two. 2777 2778config MIPS_PERF_SHARED_TC_COUNTERS 2779 bool 2780 2781config MIPS_NR_CPU_NR_MAP_1024 2782 bool 2783 2784config MIPS_NR_CPU_NR_MAP 2785 int 2786 depends on SMP 2787 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2788 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2789 2790# 2791# Timer Interrupt Frequency Configuration 2792# 2793 2794choice 2795 prompt "Timer frequency" 2796 default HZ_250 2797 help 2798 Allows the configuration of the timer frequency. 2799 2800 config HZ_24 2801 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2802 2803 config HZ_48 2804 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2805 2806 config HZ_100 2807 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2808 2809 config HZ_128 2810 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2811 2812 config HZ_250 2813 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2814 2815 config HZ_256 2816 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2817 2818 config HZ_1000 2819 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2820 2821 config HZ_1024 2822 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2823 2824endchoice 2825 2826config SYS_SUPPORTS_24HZ 2827 bool 2828 2829config SYS_SUPPORTS_48HZ 2830 bool 2831 2832config SYS_SUPPORTS_100HZ 2833 bool 2834 2835config SYS_SUPPORTS_128HZ 2836 bool 2837 2838config SYS_SUPPORTS_250HZ 2839 bool 2840 2841config SYS_SUPPORTS_256HZ 2842 bool 2843 2844config SYS_SUPPORTS_1000HZ 2845 bool 2846 2847config SYS_SUPPORTS_1024HZ 2848 bool 2849 2850config SYS_SUPPORTS_ARBIT_HZ 2851 bool 2852 default y if !SYS_SUPPORTS_24HZ && \ 2853 !SYS_SUPPORTS_48HZ && \ 2854 !SYS_SUPPORTS_100HZ && \ 2855 !SYS_SUPPORTS_128HZ && \ 2856 !SYS_SUPPORTS_250HZ && \ 2857 !SYS_SUPPORTS_256HZ && \ 2858 !SYS_SUPPORTS_1000HZ && \ 2859 !SYS_SUPPORTS_1024HZ 2860 2861config HZ 2862 int 2863 default 24 if HZ_24 2864 default 48 if HZ_48 2865 default 100 if HZ_100 2866 default 128 if HZ_128 2867 default 250 if HZ_250 2868 default 256 if HZ_256 2869 default 1000 if HZ_1000 2870 default 1024 if HZ_1024 2871 2872config SCHED_HRTICK 2873 def_bool HIGH_RES_TIMERS 2874 2875config KEXEC 2876 bool "Kexec system call" 2877 select KEXEC_CORE 2878 help 2879 kexec is a system call that implements the ability to shutdown your 2880 current kernel, and to start another kernel. It is like a reboot 2881 but it is independent of the system firmware. And like a reboot 2882 you can start any kernel with it, not just Linux. 2883 2884 The name comes from the similarity to the exec system call. 2885 2886 It is an ongoing process to be certain the hardware in a machine 2887 is properly shutdown, so do not be surprised if this code does not 2888 initially work for you. As of this writing the exact hardware 2889 interface is strongly in flux, so no good recommendation can be 2890 made. 2891 2892config CRASH_DUMP 2893 bool "Kernel crash dumps" 2894 help 2895 Generate crash dump after being started by kexec. 2896 This should be normally only set in special crash dump kernels 2897 which are loaded in the main kernel with kexec-tools into 2898 a specially reserved region and then later executed after 2899 a crash by kdump/kexec. The crash dump kernel must be compiled 2900 to a memory address not used by the main kernel or firmware using 2901 PHYSICAL_START. 2902 2903config PHYSICAL_START 2904 hex "Physical address where the kernel is loaded" 2905 default "0xffffffff84000000" 2906 depends on CRASH_DUMP 2907 help 2908 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2909 If you plan to use kernel for capturing the crash dump change 2910 this value to start of the reserved region (the "X" value as 2911 specified in the "crashkernel=YM@XM" command line boot parameter 2912 passed to the panic-ed kernel). 2913 2914config SECCOMP 2915 bool "Enable seccomp to safely compute untrusted bytecode" 2916 depends on PROC_FS 2917 default y 2918 help 2919 This kernel feature is useful for number crunching applications 2920 that may need to compute untrusted bytecode during their 2921 execution. By using pipes or other transports made available to 2922 the process as file descriptors supporting the read/write 2923 syscalls, it's possible to isolate those applications in 2924 their own address space using seccomp. Once seccomp is 2925 enabled via /proc/<pid>/seccomp, it cannot be disabled 2926 and the task is only allowed to execute a few safe syscalls 2927 defined by each seccomp mode. 2928 2929 If unsure, say Y. Only embedded should say N here. 2930 2931config MIPS_O32_FP64_SUPPORT 2932 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2933 depends on 32BIT || MIPS32_O32 2934 help 2935 When this is enabled, the kernel will support use of 64-bit floating 2936 point registers with binaries using the O32 ABI along with the 2937 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2938 32-bit MIPS systems this support is at the cost of increasing the 2939 size and complexity of the compiled FPU emulator. Thus if you are 2940 running a MIPS32 system and know that none of your userland binaries 2941 will require 64-bit floating point, you may wish to reduce the size 2942 of your kernel & potentially improve FP emulation performance by 2943 saying N here. 2944 2945 Although binutils currently supports use of this flag the details 2946 concerning its effect upon the O32 ABI in userland are still being 2947 worked on. In order to avoid userland becoming dependant upon current 2948 behaviour before the details have been finalised, this option should 2949 be considered experimental and only enabled by those working upon 2950 said details. 2951 2952 If unsure, say N. 2953 2954config USE_OF 2955 bool 2956 select OF 2957 select OF_EARLY_FLATTREE 2958 select IRQ_DOMAIN 2959 2960config UHI_BOOT 2961 bool 2962 2963config BUILTIN_DTB 2964 bool 2965 2966choice 2967 prompt "Kernel appended dtb support" if USE_OF 2968 default MIPS_NO_APPENDED_DTB 2969 2970 config MIPS_NO_APPENDED_DTB 2971 bool "None" 2972 help 2973 Do not enable appended dtb support. 2974 2975 config MIPS_ELF_APPENDED_DTB 2976 bool "vmlinux" 2977 help 2978 With this option, the boot code will look for a device tree binary 2979 DTB) included in the vmlinux ELF section .appended_dtb. By default 2980 it is empty and the DTB can be appended using binutils command 2981 objcopy: 2982 2983 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2984 2985 This is meant as a backward compatiblity convenience for those 2986 systems with a bootloader that can't be upgraded to accommodate 2987 the documented boot protocol using a device tree. 2988 2989 config MIPS_RAW_APPENDED_DTB 2990 bool "vmlinux.bin or vmlinuz.bin" 2991 help 2992 With this option, the boot code will look for a device tree binary 2993 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2994 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2995 2996 This is meant as a backward compatibility convenience for those 2997 systems with a bootloader that can't be upgraded to accommodate 2998 the documented boot protocol using a device tree. 2999 3000 Beware that there is very little in terms of protection against 3001 this option being confused by leftover garbage in memory that might 3002 look like a DTB header after a reboot if no actual DTB is appended 3003 to vmlinux.bin. Do not leave this option active in a production kernel 3004 if you don't intend to always append a DTB. 3005endchoice 3006 3007choice 3008 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3009 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3010 !MIPS_MALTA && \ 3011 !CAVIUM_OCTEON_SOC 3012 default MIPS_CMDLINE_FROM_BOOTLOADER 3013 3014 config MIPS_CMDLINE_FROM_DTB 3015 depends on USE_OF 3016 bool "Dtb kernel arguments if available" 3017 3018 config MIPS_CMDLINE_DTB_EXTEND 3019 depends on USE_OF 3020 bool "Extend dtb kernel arguments with bootloader arguments" 3021 3022 config MIPS_CMDLINE_FROM_BOOTLOADER 3023 bool "Bootloader kernel arguments if available" 3024 3025 config MIPS_CMDLINE_BUILTIN_EXTEND 3026 depends on CMDLINE_BOOL 3027 bool "Extend builtin kernel arguments with bootloader arguments" 3028endchoice 3029 3030endmenu 3031 3032config LOCKDEP_SUPPORT 3033 bool 3034 default y 3035 3036config STACKTRACE_SUPPORT 3037 bool 3038 default y 3039 3040config PGTABLE_LEVELS 3041 int 3042 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3043 default 3 if 64BIT && !PAGE_SIZE_64KB 3044 default 2 3045 3046config MIPS_AUTO_PFN_OFFSET 3047 bool 3048 3049menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3050 3051config PCI_DRIVERS_GENERIC 3052 select PCI_DOMAINS_GENERIC if PCI 3053 bool 3054 3055config PCI_DRIVERS_LEGACY 3056 def_bool !PCI_DRIVERS_GENERIC 3057 select NO_GENERIC_PCI_IOPORT_MAP 3058 select PCI_DOMAINS if PCI 3059 3060# 3061# ISA support is now enabled via select. Too many systems still have the one 3062# or other ISA chip on the board that users don't know about so don't expect 3063# users to choose the right thing ... 3064# 3065config ISA 3066 bool 3067 3068config TC 3069 bool "TURBOchannel support" 3070 depends on MACH_DECSTATION 3071 help 3072 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3073 processors. TURBOchannel programming specifications are available 3074 at: 3075 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3076 and: 3077 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3078 Linux driver support status is documented at: 3079 <http://www.linux-mips.org/wiki/DECstation> 3080 3081config MMU 3082 bool 3083 default y 3084 3085config ARCH_MMAP_RND_BITS_MIN 3086 default 12 if 64BIT 3087 default 8 3088 3089config ARCH_MMAP_RND_BITS_MAX 3090 default 18 if 64BIT 3091 default 15 3092 3093config ARCH_MMAP_RND_COMPAT_BITS_MIN 3094 default 8 3095 3096config ARCH_MMAP_RND_COMPAT_BITS_MAX 3097 default 15 3098 3099config I8253 3100 bool 3101 select CLKSRC_I8253 3102 select CLKEVT_I8253 3103 select MIPS_EXTERNAL_TIMER 3104 3105config ZONE_DMA 3106 bool 3107 3108config ZONE_DMA32 3109 bool 3110 3111endmenu 3112 3113config TRAD_SIGNALS 3114 bool 3115 3116config MIPS32_COMPAT 3117 bool 3118 3119config COMPAT 3120 bool 3121 3122config SYSVIPC_COMPAT 3123 bool 3124 3125config MIPS32_O32 3126 bool "Kernel support for o32 binaries" 3127 depends on 64BIT 3128 select ARCH_WANT_OLD_COMPAT_IPC 3129 select COMPAT 3130 select MIPS32_COMPAT 3131 select SYSVIPC_COMPAT if SYSVIPC 3132 help 3133 Select this option if you want to run o32 binaries. These are pure 3134 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3135 existing binaries are in this format. 3136 3137 If unsure, say Y. 3138 3139config MIPS32_N32 3140 bool "Kernel support for n32 binaries" 3141 depends on 64BIT 3142 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3143 select COMPAT 3144 select MIPS32_COMPAT 3145 select SYSVIPC_COMPAT if SYSVIPC 3146 help 3147 Select this option if you want to run n32 binaries. These are 3148 64-bit binaries using 32-bit quantities for addressing and certain 3149 data that would normally be 64-bit. They are used in special 3150 cases. 3151 3152 If unsure, say N. 3153 3154config BINFMT_ELF32 3155 bool 3156 default y if MIPS32_O32 || MIPS32_N32 3157 select ELFCORE 3158 3159menu "Power management options" 3160 3161config ARCH_HIBERNATION_POSSIBLE 3162 def_bool y 3163 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3164 3165config ARCH_SUSPEND_POSSIBLE 3166 def_bool y 3167 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3168 3169source "kernel/power/Kconfig" 3170 3171endmenu 3172 3173config MIPS_EXTERNAL_TIMER 3174 bool 3175 3176menu "CPU Power Management" 3177 3178if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3179source "drivers/cpufreq/Kconfig" 3180endif 3181 3182source "drivers/cpuidle/Kconfig" 3183 3184endmenu 3185 3186source "drivers/firmware/Kconfig" 3187 3188source "arch/mips/kvm/Kconfig" 3189