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_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 9 select ARCH_HAS_UBSAN_SANITIZE_ALL 10 select ARCH_HAS_FORTIFY_SOURCE 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_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 17 select ARCH_WANT_IPC_PARSE_VERSION 18 select BUILDTIME_EXTABLE_SORT 19 select CLONE_BACKWARDS 20 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 21 select CPU_PM if CPU_IDLE 22 select GENERIC_ATOMIC64 if !64BIT 23 select GENERIC_CLOCKEVENTS 24 select GENERIC_CMOS_UPDATE 25 select GENERIC_CPU_AUTOPROBE 26 select GENERIC_GETTIMEOFDAY 27 select GENERIC_IOMAP 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select GENERIC_ISA_DMA if EISA 31 select GENERIC_LIB_ASHLDI3 32 select GENERIC_LIB_ASHRDI3 33 select GENERIC_LIB_CMPDI2 34 select GENERIC_LIB_LSHRDI3 35 select GENERIC_LIB_UCMPDI2 36 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 37 select GENERIC_SMP_IDLE_THREAD 38 select GENERIC_TIME_VSYSCALL 39 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 40 select HANDLE_DOMAIN_IRQ 41 select HAVE_ARCH_COMPILER_H 42 select HAVE_ARCH_JUMP_LABEL 43 select HAVE_ARCH_KGDB 44 select HAVE_ARCH_MMAP_RND_BITS if MMU 45 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 46 select HAVE_ARCH_SECCOMP_FILTER 47 select HAVE_ARCH_TRACEHOOK 48 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 49 select HAVE_ASM_MODVERSIONS 50 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 51 select HAVE_CONTEXT_TRACKING 52 select HAVE_COPY_THREAD_TLS 53 select HAVE_C_RECORDMCOUNT 54 select HAVE_DEBUG_KMEMLEAK 55 select HAVE_DEBUG_STACKOVERFLOW 56 select HAVE_DMA_CONTIGUOUS 57 select HAVE_DYNAMIC_FTRACE 58 select HAVE_EXIT_THREAD 59 select HAVE_FAST_GUP 60 select HAVE_FTRACE_MCOUNT_RECORD 61 select HAVE_FUNCTION_GRAPH_TRACER 62 select HAVE_FUNCTION_TRACER 63 select HAVE_IDE 64 select HAVE_IOREMAP_PROT 65 select HAVE_IRQ_EXIT_ON_IRQ_STACK 66 select HAVE_IRQ_TIME_ACCOUNTING 67 select HAVE_KPROBES 68 select HAVE_KRETPROBES 69 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 70 select HAVE_MEMBLOCK_NODE_MAP 71 select HAVE_MOD_ARCH_SPECIFIC 72 select HAVE_NMI 73 select HAVE_OPROFILE 74 select HAVE_PERF_EVENTS 75 select HAVE_REGS_AND_STACK_ACCESS_API 76 select HAVE_RSEQ 77 select HAVE_SPARSE_SYSCALL_NR 78 select HAVE_STACKPROTECTOR 79 select HAVE_SYSCALL_TRACEPOINTS 80 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 81 select HAVE_GENERIC_VDSO 82 select IRQ_FORCED_THREADING 83 select ISA if EISA 84 select MODULES_USE_ELF_RELA if MODULES && 64BIT 85 select MODULES_USE_ELF_REL if MODULES 86 select PERF_USE_VMALLOC 87 select RTC_LIB 88 select SYSCTL_EXCEPTION_TRACE 89 select VIRT_TO_BUS 90 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 91 select ARCH_HAS_KCOV 92 select HAVE_GCC_PLUGINS 93 94menu "Machine selection" 95 96choice 97 prompt "System type" 98 default MIPS_GENERIC 99 100config MIPS_GENERIC 101 bool "Generic board-agnostic MIPS kernel" 102 select BOOT_RAW 103 select BUILTIN_DTB 104 select CEVT_R4K 105 select CLKSRC_MIPS_GIC 106 select COMMON_CLK 107 select CPU_MIPSR2_IRQ_VI 108 select CPU_MIPSR2_IRQ_EI 109 select CSRC_R4K 110 select DMA_PERDEV_COHERENT 111 select HAVE_PCI 112 select IRQ_MIPS_CPU 113 select LIBFDT 114 select MIPS_AUTO_PFN_OFFSET 115 select MIPS_CPU_SCACHE 116 select MIPS_GIC 117 select MIPS_L1_CACHE_SHIFT_7 118 select NO_EXCEPT_FILL 119 select PCI_DRIVERS_GENERIC 120 select PINCTRL 121 select SMP_UP if SMP 122 select SWAP_IO_SPACE 123 select SYS_HAS_CPU_MIPS32_R1 124 select SYS_HAS_CPU_MIPS32_R2 125 select SYS_HAS_CPU_MIPS32_R6 126 select SYS_HAS_CPU_MIPS64_R1 127 select SYS_HAS_CPU_MIPS64_R2 128 select SYS_HAS_CPU_MIPS64_R6 129 select SYS_SUPPORTS_32BIT_KERNEL 130 select SYS_SUPPORTS_64BIT_KERNEL 131 select SYS_SUPPORTS_BIG_ENDIAN 132 select SYS_SUPPORTS_HIGHMEM 133 select SYS_SUPPORTS_LITTLE_ENDIAN 134 select SYS_SUPPORTS_MICROMIPS 135 select SYS_SUPPORTS_MIPS_CPS 136 select SYS_SUPPORTS_MIPS16 137 select SYS_SUPPORTS_MULTITHREADING 138 select SYS_SUPPORTS_RELOCATABLE 139 select SYS_SUPPORTS_SMARTMIPS 140 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 141 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 142 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 143 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 144 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 145 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 146 select USE_OF 147 select UHI_BOOT 148 help 149 Select this to build a kernel which aims to support multiple boards, 150 generally using a flattened device tree passed from the bootloader 151 using the boot protocol defined in the UHI (Unified Hosting 152 Interface) specification. 153 154config MIPS_ALCHEMY 155 bool "Alchemy processor based machines" 156 select PHYS_ADDR_T_64BIT 157 select CEVT_R4K 158 select CSRC_R4K 159 select IRQ_MIPS_CPU 160 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 161 select SYS_HAS_CPU_MIPS32_R1 162 select SYS_SUPPORTS_32BIT_KERNEL 163 select SYS_SUPPORTS_APM_EMULATION 164 select GPIOLIB 165 select SYS_SUPPORTS_ZBOOT 166 select COMMON_CLK 167 168config AR7 169 bool "Texas Instruments AR7" 170 select BOOT_ELF32 171 select DMA_NONCOHERENT 172 select CEVT_R4K 173 select CSRC_R4K 174 select IRQ_MIPS_CPU 175 select NO_EXCEPT_FILL 176 select SWAP_IO_SPACE 177 select SYS_HAS_CPU_MIPS32_R1 178 select SYS_HAS_EARLY_PRINTK 179 select SYS_SUPPORTS_32BIT_KERNEL 180 select SYS_SUPPORTS_LITTLE_ENDIAN 181 select SYS_SUPPORTS_MIPS16 182 select SYS_SUPPORTS_ZBOOT_UART16550 183 select GPIOLIB 184 select VLYNQ 185 select HAVE_CLK 186 help 187 Support for the Texas Instruments AR7 System-on-a-Chip 188 family: TNETD7100, 7200 and 7300. 189 190config ATH25 191 bool "Atheros AR231x/AR531x SoC support" 192 select CEVT_R4K 193 select CSRC_R4K 194 select DMA_NONCOHERENT 195 select IRQ_MIPS_CPU 196 select IRQ_DOMAIN 197 select SYS_HAS_CPU_MIPS32_R1 198 select SYS_SUPPORTS_BIG_ENDIAN 199 select SYS_SUPPORTS_32BIT_KERNEL 200 select SYS_HAS_EARLY_PRINTK 201 help 202 Support for Atheros AR231x and Atheros AR531x based boards 203 204config ATH79 205 bool "Atheros AR71XX/AR724X/AR913X based boards" 206 select ARCH_HAS_RESET_CONTROLLER 207 select BOOT_RAW 208 select CEVT_R4K 209 select CSRC_R4K 210 select DMA_NONCOHERENT 211 select GPIOLIB 212 select PINCTRL 213 select HAVE_CLK 214 select COMMON_CLK 215 select CLKDEV_LOOKUP 216 select IRQ_MIPS_CPU 217 select SYS_HAS_CPU_MIPS32_R2 218 select SYS_HAS_EARLY_PRINTK 219 select SYS_SUPPORTS_32BIT_KERNEL 220 select SYS_SUPPORTS_BIG_ENDIAN 221 select SYS_SUPPORTS_MIPS16 222 select SYS_SUPPORTS_ZBOOT_UART_PROM 223 select USE_OF 224 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 225 help 226 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 227 228config BMIPS_GENERIC 229 bool "Broadcom Generic BMIPS kernel" 230 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 231 select ARCH_HAS_PHYS_TO_DMA 232 select BOOT_RAW 233 select NO_EXCEPT_FILL 234 select USE_OF 235 select CEVT_R4K 236 select CSRC_R4K 237 select SYNC_R4K 238 select COMMON_CLK 239 select BCM6345_L1_IRQ 240 select BCM7038_L1_IRQ 241 select BCM7120_L2_IRQ 242 select BRCMSTB_L2_IRQ 243 select IRQ_MIPS_CPU 244 select DMA_NONCOHERENT 245 select SYS_SUPPORTS_32BIT_KERNEL 246 select SYS_SUPPORTS_LITTLE_ENDIAN 247 select SYS_SUPPORTS_BIG_ENDIAN 248 select SYS_SUPPORTS_HIGHMEM 249 select SYS_HAS_CPU_BMIPS32_3300 250 select SYS_HAS_CPU_BMIPS4350 251 select SYS_HAS_CPU_BMIPS4380 252 select SYS_HAS_CPU_BMIPS5000 253 select SWAP_IO_SPACE 254 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 255 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 256 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 257 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 258 select HARDIRQS_SW_RESEND 259 help 260 Build a generic DT-based kernel image that boots on select 261 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 262 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 263 must be set appropriately for your board. 264 265config BCM47XX 266 bool "Broadcom BCM47XX based boards" 267 select BOOT_RAW 268 select CEVT_R4K 269 select CSRC_R4K 270 select DMA_NONCOHERENT 271 select HAVE_PCI 272 select IRQ_MIPS_CPU 273 select SYS_HAS_CPU_MIPS32_R1 274 select NO_EXCEPT_FILL 275 select SYS_SUPPORTS_32BIT_KERNEL 276 select SYS_SUPPORTS_LITTLE_ENDIAN 277 select SYS_SUPPORTS_MIPS16 278 select SYS_SUPPORTS_ZBOOT 279 select SYS_HAS_EARLY_PRINTK 280 select USE_GENERIC_EARLY_PRINTK_8250 281 select GPIOLIB 282 select LEDS_GPIO_REGISTER 283 select BCM47XX_NVRAM 284 select BCM47XX_SPROM 285 select BCM47XX_SSB if !BCM47XX_BCMA 286 help 287 Support for BCM47XX based boards 288 289config BCM63XX 290 bool "Broadcom BCM63XX based boards" 291 select BOOT_RAW 292 select CEVT_R4K 293 select CSRC_R4K 294 select SYNC_R4K 295 select DMA_NONCOHERENT 296 select IRQ_MIPS_CPU 297 select SYS_SUPPORTS_32BIT_KERNEL 298 select SYS_SUPPORTS_BIG_ENDIAN 299 select SYS_HAS_EARLY_PRINTK 300 select SWAP_IO_SPACE 301 select GPIOLIB 302 select HAVE_CLK 303 select MIPS_L1_CACHE_SHIFT_4 304 select CLKDEV_LOOKUP 305 help 306 Support for BCM63XX based boards 307 308config MIPS_COBALT 309 bool "Cobalt Server" 310 select CEVT_R4K 311 select CSRC_R4K 312 select CEVT_GT641XX 313 select DMA_NONCOHERENT 314 select FORCE_PCI 315 select I8253 316 select I8259 317 select IRQ_MIPS_CPU 318 select IRQ_GT641XX 319 select PCI_GT64XXX_PCI0 320 select SYS_HAS_CPU_NEVADA 321 select SYS_HAS_EARLY_PRINTK 322 select SYS_SUPPORTS_32BIT_KERNEL 323 select SYS_SUPPORTS_64BIT_KERNEL 324 select SYS_SUPPORTS_LITTLE_ENDIAN 325 select USE_GENERIC_EARLY_PRINTK_8250 326 327config MACH_DECSTATION 328 bool "DECstations" 329 select BOOT_ELF32 330 select CEVT_DS1287 331 select CEVT_R4K if CPU_R4X00 332 select CSRC_IOASIC 333 select CSRC_R4K if CPU_R4X00 334 select CPU_DADDI_WORKAROUNDS if 64BIT 335 select CPU_R4000_WORKAROUNDS if 64BIT 336 select CPU_R4400_WORKAROUNDS if 64BIT 337 select DMA_NONCOHERENT 338 select NO_IOPORT_MAP 339 select IRQ_MIPS_CPU 340 select SYS_HAS_CPU_R3000 341 select SYS_HAS_CPU_R4X00 342 select SYS_SUPPORTS_32BIT_KERNEL 343 select SYS_SUPPORTS_64BIT_KERNEL 344 select SYS_SUPPORTS_LITTLE_ENDIAN 345 select SYS_SUPPORTS_128HZ 346 select SYS_SUPPORTS_256HZ 347 select SYS_SUPPORTS_1024HZ 348 select MIPS_L1_CACHE_SHIFT_4 349 help 350 This enables support for DEC's MIPS based workstations. For details 351 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 352 DECstation porting pages on <http://decstation.unix-ag.org/>. 353 354 If you have one of the following DECstation Models you definitely 355 want to choose R4xx0 for the CPU Type: 356 357 DECstation 5000/50 358 DECstation 5000/150 359 DECstation 5000/260 360 DECsystem 5900/260 361 362 otherwise choose R3000. 363 364config MACH_JAZZ 365 bool "Jazz family of machines" 366 select ARC_MEMORY 367 select ARC_PROMLIB 368 select ARCH_MIGHT_HAVE_PC_PARPORT 369 select ARCH_MIGHT_HAVE_PC_SERIO 370 select FW_ARC 371 select FW_ARC32 372 select ARCH_MAY_HAVE_PC_FDC 373 select CEVT_R4K 374 select CSRC_R4K 375 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 376 select GENERIC_ISA_DMA 377 select HAVE_PCSPKR_PLATFORM 378 select IRQ_MIPS_CPU 379 select I8253 380 select I8259 381 select ISA 382 select SYS_HAS_CPU_R4X00 383 select SYS_SUPPORTS_32BIT_KERNEL 384 select SYS_SUPPORTS_64BIT_KERNEL 385 select SYS_SUPPORTS_100HZ 386 help 387 This a family of machines based on the MIPS R4030 chipset which was 388 used by several vendors to build RISC/os and Windows NT workstations. 389 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 390 Olivetti M700-10 workstations. 391 392config MACH_INGENIC 393 bool "Ingenic SoC based machines" 394 select SYS_SUPPORTS_32BIT_KERNEL 395 select SYS_SUPPORTS_LITTLE_ENDIAN 396 select SYS_SUPPORTS_ZBOOT_UART16550 397 select CPU_SUPPORTS_HUGEPAGES 398 select DMA_NONCOHERENT 399 select IRQ_MIPS_CPU 400 select PINCTRL 401 select GPIOLIB 402 select COMMON_CLK 403 select GENERIC_IRQ_CHIP 404 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 405 select USE_OF 406 select LIBFDT 407 408config LANTIQ 409 bool "Lantiq based platforms" 410 select DMA_NONCOHERENT 411 select IRQ_MIPS_CPU 412 select CEVT_R4K 413 select CSRC_R4K 414 select SYS_HAS_CPU_MIPS32_R1 415 select SYS_HAS_CPU_MIPS32_R2 416 select SYS_SUPPORTS_BIG_ENDIAN 417 select SYS_SUPPORTS_32BIT_KERNEL 418 select SYS_SUPPORTS_MIPS16 419 select SYS_SUPPORTS_MULTITHREADING 420 select SYS_SUPPORTS_VPE_LOADER 421 select SYS_HAS_EARLY_PRINTK 422 select GPIOLIB 423 select SWAP_IO_SPACE 424 select BOOT_RAW 425 select CLKDEV_LOOKUP 426 select USE_OF 427 select PINCTRL 428 select PINCTRL_LANTIQ 429 select ARCH_HAS_RESET_CONTROLLER 430 select RESET_CONTROLLER 431 432config LASAT 433 bool "LASAT Networks platforms" 434 select CEVT_R4K 435 select CRC32 436 select CSRC_R4K 437 select DMA_NONCOHERENT 438 select SYS_HAS_EARLY_PRINTK 439 select HAVE_PCI 440 select IRQ_MIPS_CPU 441 select PCI_GT64XXX_PCI0 442 select MIPS_NILE4 443 select R5000_CPU_SCACHE 444 select SYS_HAS_CPU_R5000 445 select SYS_SUPPORTS_32BIT_KERNEL 446 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 447 select SYS_SUPPORTS_LITTLE_ENDIAN 448 449config MACH_LOONGSON32 450 bool "Loongson 32-bit family of machines" 451 select SYS_SUPPORTS_ZBOOT 452 help 453 This enables support for the Loongson-1 family of machines. 454 455 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 456 the Institute of Computing Technology (ICT), Chinese Academy of 457 Sciences (CAS). 458 459config MACH_LOONGSON2EF 460 bool "Loongson-2E/F family of machines" 461 select SYS_SUPPORTS_ZBOOT 462 help 463 This enables the support of early Loongson-2E/F family of machines. 464 465config MACH_LOONGSON64 466 bool "Loongson 64-bit family of machines" 467 select ARCH_SPARSEMEM_ENABLE 468 select ARCH_MIGHT_HAVE_PC_PARPORT 469 select ARCH_MIGHT_HAVE_PC_SERIO 470 select GENERIC_ISA_DMA_SUPPORT_BROKEN 471 select BOOT_ELF32 472 select BOARD_SCACHE 473 select CSRC_R4K 474 select CEVT_R4K 475 select CPU_HAS_WB 476 select FORCE_PCI 477 select ISA 478 select I8259 479 select IRQ_MIPS_CPU 480 select NR_CPUS_DEFAULT_4 481 select USE_GENERIC_EARLY_PRINTK_8250 482 select SYS_HAS_CPU_LOONGSON64 483 select SYS_HAS_EARLY_PRINTK 484 select SYS_SUPPORTS_SMP 485 select SYS_SUPPORTS_HOTPLUG_CPU 486 select SYS_SUPPORTS_NUMA 487 select SYS_SUPPORTS_64BIT_KERNEL 488 select SYS_SUPPORTS_HIGHMEM 489 select SYS_SUPPORTS_LITTLE_ENDIAN 490 select SYS_SUPPORTS_ZBOOT 491 select LOONGSON_MC146818 492 select ZONE_DMA32 493 select NUMA 494 help 495 This enables the support of Loongson-2/3 family of machines. 496 497 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 498 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 499 and Loongson-2F which will be removed), developed by the Institute 500 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 501 502config MACH_PISTACHIO 503 bool "IMG Pistachio SoC based boards" 504 select BOOT_ELF32 505 select BOOT_RAW 506 select CEVT_R4K 507 select CLKSRC_MIPS_GIC 508 select COMMON_CLK 509 select CSRC_R4K 510 select DMA_NONCOHERENT 511 select GPIOLIB 512 select IRQ_MIPS_CPU 513 select LIBFDT 514 select MFD_SYSCON 515 select MIPS_CPU_SCACHE 516 select MIPS_GIC 517 select PINCTRL 518 select REGULATOR 519 select SYS_HAS_CPU_MIPS32_R2 520 select SYS_SUPPORTS_32BIT_KERNEL 521 select SYS_SUPPORTS_LITTLE_ENDIAN 522 select SYS_SUPPORTS_MIPS_CPS 523 select SYS_SUPPORTS_MULTITHREADING 524 select SYS_SUPPORTS_RELOCATABLE 525 select SYS_SUPPORTS_ZBOOT 526 select SYS_HAS_EARLY_PRINTK 527 select USE_GENERIC_EARLY_PRINTK_8250 528 select USE_OF 529 help 530 This enables support for the IMG Pistachio SoC platform. 531 532config MIPS_MALTA 533 bool "MIPS Malta board" 534 select ARCH_MAY_HAVE_PC_FDC 535 select ARCH_MIGHT_HAVE_PC_PARPORT 536 select ARCH_MIGHT_HAVE_PC_SERIO 537 select BOOT_ELF32 538 select BOOT_RAW 539 select BUILTIN_DTB 540 select CEVT_R4K 541 select CLKSRC_MIPS_GIC 542 select COMMON_CLK 543 select CSRC_R4K 544 select DMA_MAYBE_COHERENT 545 select GENERIC_ISA_DMA 546 select HAVE_PCSPKR_PLATFORM 547 select HAVE_PCI 548 select I8253 549 select I8259 550 select IRQ_MIPS_CPU 551 select LIBFDT 552 select MIPS_BONITO64 553 select MIPS_CPU_SCACHE 554 select MIPS_GIC 555 select MIPS_L1_CACHE_SHIFT_6 556 select MIPS_MSC 557 select PCI_GT64XXX_PCI0 558 select SMP_UP if SMP 559 select SWAP_IO_SPACE 560 select SYS_HAS_CPU_MIPS32_R1 561 select SYS_HAS_CPU_MIPS32_R2 562 select SYS_HAS_CPU_MIPS32_R3_5 563 select SYS_HAS_CPU_MIPS32_R5 564 select SYS_HAS_CPU_MIPS32_R6 565 select SYS_HAS_CPU_MIPS64_R1 566 select SYS_HAS_CPU_MIPS64_R2 567 select SYS_HAS_CPU_MIPS64_R6 568 select SYS_HAS_CPU_NEVADA 569 select SYS_HAS_CPU_RM7000 570 select SYS_SUPPORTS_32BIT_KERNEL 571 select SYS_SUPPORTS_64BIT_KERNEL 572 select SYS_SUPPORTS_BIG_ENDIAN 573 select SYS_SUPPORTS_HIGHMEM 574 select SYS_SUPPORTS_LITTLE_ENDIAN 575 select SYS_SUPPORTS_MICROMIPS 576 select SYS_SUPPORTS_MIPS16 577 select SYS_SUPPORTS_MIPS_CMP 578 select SYS_SUPPORTS_MIPS_CPS 579 select SYS_SUPPORTS_MULTITHREADING 580 select SYS_SUPPORTS_RELOCATABLE 581 select SYS_SUPPORTS_SMARTMIPS 582 select SYS_SUPPORTS_VPE_LOADER 583 select SYS_SUPPORTS_ZBOOT 584 select USE_OF 585 select ZONE_DMA32 if 64BIT 586 help 587 This enables support for the MIPS Technologies Malta evaluation 588 board. 589 590config MACH_PIC32 591 bool "Microchip PIC32 Family" 592 help 593 This enables support for the Microchip PIC32 family of platforms. 594 595 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 596 microcontrollers. 597 598config NEC_MARKEINS 599 bool "NEC EMMA2RH Mark-eins board" 600 select SOC_EMMA2RH 601 select HAVE_PCI 602 help 603 This enables support for the NEC Electronics Mark-eins boards. 604 605config MACH_VR41XX 606 bool "NEC VR4100 series based machines" 607 select CEVT_R4K 608 select CSRC_R4K 609 select SYS_HAS_CPU_VR41XX 610 select SYS_SUPPORTS_MIPS16 611 select GPIOLIB 612 613config NXP_STB220 614 bool "NXP STB220 board" 615 select SOC_PNX833X 616 help 617 Support for NXP Semiconductors STB220 Development Board. 618 619config NXP_STB225 620 bool "NXP 225 board" 621 select SOC_PNX833X 622 select SOC_PNX8335 623 help 624 Support for NXP Semiconductors STB225 Development Board. 625 626config PMC_MSP 627 bool "PMC-Sierra MSP chipsets" 628 select CEVT_R4K 629 select CSRC_R4K 630 select DMA_NONCOHERENT 631 select SWAP_IO_SPACE 632 select NO_EXCEPT_FILL 633 select BOOT_RAW 634 select SYS_HAS_CPU_MIPS32_R1 635 select SYS_HAS_CPU_MIPS32_R2 636 select SYS_SUPPORTS_32BIT_KERNEL 637 select SYS_SUPPORTS_BIG_ENDIAN 638 select SYS_SUPPORTS_MIPS16 639 select IRQ_MIPS_CPU 640 select SERIAL_8250 641 select SERIAL_8250_CONSOLE 642 select USB_EHCI_BIG_ENDIAN_MMIO 643 select USB_EHCI_BIG_ENDIAN_DESC 644 help 645 This adds support for the PMC-Sierra family of Multi-Service 646 Processor System-On-A-Chips. These parts include a number 647 of integrated peripherals, interfaces and DSPs in addition to 648 a variety of MIPS cores. 649 650config RALINK 651 bool "Ralink based machines" 652 select CEVT_R4K 653 select CSRC_R4K 654 select BOOT_RAW 655 select DMA_NONCOHERENT 656 select IRQ_MIPS_CPU 657 select USE_OF 658 select SYS_HAS_CPU_MIPS32_R1 659 select SYS_HAS_CPU_MIPS32_R2 660 select SYS_SUPPORTS_32BIT_KERNEL 661 select SYS_SUPPORTS_LITTLE_ENDIAN 662 select SYS_SUPPORTS_MIPS16 663 select SYS_HAS_EARLY_PRINTK 664 select CLKDEV_LOOKUP 665 select ARCH_HAS_RESET_CONTROLLER 666 select RESET_CONTROLLER 667 668config SGI_IP22 669 bool "SGI IP22 (Indy/Indigo2)" 670 select ARC_MEMORY 671 select ARC_PROMLIB 672 select FW_ARC 673 select FW_ARC32 674 select ARCH_MIGHT_HAVE_PC_SERIO 675 select BOOT_ELF32 676 select CEVT_R4K 677 select CSRC_R4K 678 select DEFAULT_SGI_PARTITION 679 select DMA_NONCOHERENT 680 select HAVE_EISA 681 select I8253 682 select I8259 683 select IP22_CPU_SCACHE 684 select IRQ_MIPS_CPU 685 select GENERIC_ISA_DMA_SUPPORT_BROKEN 686 select SGI_HAS_I8042 687 select SGI_HAS_INDYDOG 688 select SGI_HAS_HAL2 689 select SGI_HAS_SEEQ 690 select SGI_HAS_WD93 691 select SGI_HAS_ZILOG 692 select SWAP_IO_SPACE 693 select SYS_HAS_CPU_R4X00 694 select SYS_HAS_CPU_R5000 695 select SYS_HAS_EARLY_PRINTK 696 select SYS_SUPPORTS_32BIT_KERNEL 697 select SYS_SUPPORTS_64BIT_KERNEL 698 select SYS_SUPPORTS_BIG_ENDIAN 699 select MIPS_L1_CACHE_SHIFT_7 700 help 701 This are the SGI Indy, Challenge S and Indigo2, as well as certain 702 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 703 that runs on these, say Y here. 704 705config SGI_IP27 706 bool "SGI IP27 (Origin200/2000)" 707 select ARCH_HAS_PHYS_TO_DMA 708 select ARCH_SPARSEMEM_ENABLE 709 select FW_ARC 710 select FW_ARC64 711 select ARC_CMDLINE_ONLY 712 select BOOT_ELF64 713 select DEFAULT_SGI_PARTITION 714 select SYS_HAS_EARLY_PRINTK 715 select HAVE_PCI 716 select IRQ_MIPS_CPU 717 select IRQ_DOMAIN_HIERARCHY 718 select NR_CPUS_DEFAULT_64 719 select PCI_DRIVERS_GENERIC 720 select PCI_XTALK_BRIDGE 721 select SYS_HAS_CPU_R10000 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select SYS_SUPPORTS_NUMA 725 select SYS_SUPPORTS_SMP 726 select MIPS_L1_CACHE_SHIFT_7 727 help 728 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 729 workstations. To compile a Linux kernel that runs on these, say Y 730 here. 731 732config SGI_IP28 733 bool "SGI IP28 (Indigo2 R10k)" 734 select ARC_MEMORY 735 select ARC_PROMLIB 736 select FW_ARC 737 select FW_ARC64 738 select ARCH_MIGHT_HAVE_PC_SERIO 739 select BOOT_ELF64 740 select CEVT_R4K 741 select CSRC_R4K 742 select DEFAULT_SGI_PARTITION 743 select DMA_NONCOHERENT 744 select GENERIC_ISA_DMA_SUPPORT_BROKEN 745 select IRQ_MIPS_CPU 746 select HAVE_EISA 747 select I8253 748 select I8259 749 select SGI_HAS_I8042 750 select SGI_HAS_INDYDOG 751 select SGI_HAS_HAL2 752 select SGI_HAS_SEEQ 753 select SGI_HAS_WD93 754 select SGI_HAS_ZILOG 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_R10000 757 select SYS_HAS_EARLY_PRINTK 758 select SYS_SUPPORTS_64BIT_KERNEL 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select MIPS_L1_CACHE_SHIFT_7 761 help 762 This is the SGI Indigo2 with R10000 processor. To compile a Linux 763 kernel that runs on these, say Y here. 764 765config SGI_IP30 766 bool "SGI IP30 (Octane/Octane2)" 767 select ARCH_HAS_PHYS_TO_DMA 768 select FW_ARC 769 select FW_ARC64 770 select BOOT_ELF64 771 select CEVT_R4K 772 select CSRC_R4K 773 select SYNC_R4K if SMP 774 select ZONE_DMA32 775 select HAVE_PCI 776 select IRQ_MIPS_CPU 777 select IRQ_DOMAIN_HIERARCHY 778 select NR_CPUS_DEFAULT_2 779 select PCI_DRIVERS_GENERIC 780 select PCI_XTALK_BRIDGE 781 select SYS_HAS_EARLY_PRINTK 782 select SYS_HAS_CPU_R10000 783 select SYS_SUPPORTS_64BIT_KERNEL 784 select SYS_SUPPORTS_BIG_ENDIAN 785 select SYS_SUPPORTS_SMP 786 select MIPS_L1_CACHE_SHIFT_7 787 select ARC_MEMORY 788 help 789 These are the SGI Octane and Octane2 graphics workstations. To 790 compile a Linux kernel that runs on these, say Y here. 791 792config SGI_IP32 793 bool "SGI IP32 (O2)" 794 select ARC_MEMORY 795 select ARC_PROMLIB 796 select ARCH_HAS_PHYS_TO_DMA 797 select FW_ARC 798 select FW_ARC32 799 select BOOT_ELF32 800 select CEVT_R4K 801 select CSRC_R4K 802 select DMA_NONCOHERENT 803 select HAVE_PCI 804 select IRQ_MIPS_CPU 805 select R5000_CPU_SCACHE 806 select RM7000_CPU_SCACHE 807 select SYS_HAS_CPU_R5000 808 select SYS_HAS_CPU_R10000 if BROKEN 809 select SYS_HAS_CPU_RM7000 810 select SYS_HAS_CPU_NEVADA 811 select SYS_SUPPORTS_64BIT_KERNEL 812 select SYS_SUPPORTS_BIG_ENDIAN 813 help 814 If you want this kernel to run on SGI O2 workstation, say Y here. 815 816config SIBYTE_CRHINE 817 bool "Sibyte BCM91120C-CRhine" 818 select BOOT_ELF32 819 select SIBYTE_BCM1120 820 select SWAP_IO_SPACE 821 select SYS_HAS_CPU_SB1 822 select SYS_SUPPORTS_BIG_ENDIAN 823 select SYS_SUPPORTS_LITTLE_ENDIAN 824 825config SIBYTE_CARMEL 826 bool "Sibyte BCM91120x-Carmel" 827 select BOOT_ELF32 828 select SIBYTE_BCM1120 829 select SWAP_IO_SPACE 830 select SYS_HAS_CPU_SB1 831 select SYS_SUPPORTS_BIG_ENDIAN 832 select SYS_SUPPORTS_LITTLE_ENDIAN 833 834config SIBYTE_CRHONE 835 bool "Sibyte BCM91125C-CRhone" 836 select BOOT_ELF32 837 select SIBYTE_BCM1125 838 select SWAP_IO_SPACE 839 select SYS_HAS_CPU_SB1 840 select SYS_SUPPORTS_BIG_ENDIAN 841 select SYS_SUPPORTS_HIGHMEM 842 select SYS_SUPPORTS_LITTLE_ENDIAN 843 844config SIBYTE_RHONE 845 bool "Sibyte BCM91125E-Rhone" 846 select BOOT_ELF32 847 select SIBYTE_BCM1125H 848 select SWAP_IO_SPACE 849 select SYS_HAS_CPU_SB1 850 select SYS_SUPPORTS_BIG_ENDIAN 851 select SYS_SUPPORTS_LITTLE_ENDIAN 852 853config SIBYTE_SWARM 854 bool "Sibyte BCM91250A-SWARM" 855 select BOOT_ELF32 856 select HAVE_PATA_PLATFORM 857 select SIBYTE_SB1250 858 select SWAP_IO_SPACE 859 select SYS_HAS_CPU_SB1 860 select SYS_SUPPORTS_BIG_ENDIAN 861 select SYS_SUPPORTS_HIGHMEM 862 select SYS_SUPPORTS_LITTLE_ENDIAN 863 select ZONE_DMA32 if 64BIT 864 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 865 866config SIBYTE_LITTLESUR 867 bool "Sibyte BCM91250C2-LittleSur" 868 select BOOT_ELF32 869 select HAVE_PATA_PLATFORM 870 select SIBYTE_SB1250 871 select SWAP_IO_SPACE 872 select SYS_HAS_CPU_SB1 873 select SYS_SUPPORTS_BIG_ENDIAN 874 select SYS_SUPPORTS_HIGHMEM 875 select SYS_SUPPORTS_LITTLE_ENDIAN 876 select ZONE_DMA32 if 64BIT 877 878config SIBYTE_SENTOSA 879 bool "Sibyte BCM91250E-Sentosa" 880 select BOOT_ELF32 881 select SIBYTE_SB1250 882 select SWAP_IO_SPACE 883 select SYS_HAS_CPU_SB1 884 select SYS_SUPPORTS_BIG_ENDIAN 885 select SYS_SUPPORTS_LITTLE_ENDIAN 886 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 887 888config SIBYTE_BIGSUR 889 bool "Sibyte BCM91480B-BigSur" 890 select BOOT_ELF32 891 select NR_CPUS_DEFAULT_4 892 select SIBYTE_BCM1x80 893 select SWAP_IO_SPACE 894 select SYS_HAS_CPU_SB1 895 select SYS_SUPPORTS_BIG_ENDIAN 896 select SYS_SUPPORTS_HIGHMEM 897 select SYS_SUPPORTS_LITTLE_ENDIAN 898 select ZONE_DMA32 if 64BIT 899 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 900 901config SNI_RM 902 bool "SNI RM200/300/400" 903 select ARC_MEMORY 904 select ARC_PROMLIB 905 select FW_ARC if CPU_LITTLE_ENDIAN 906 select FW_ARC32 if CPU_LITTLE_ENDIAN 907 select FW_SNIPROM if CPU_BIG_ENDIAN 908 select ARCH_MAY_HAVE_PC_FDC 909 select ARCH_MIGHT_HAVE_PC_PARPORT 910 select ARCH_MIGHT_HAVE_PC_SERIO 911 select BOOT_ELF32 912 select CEVT_R4K 913 select CSRC_R4K 914 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 915 select DMA_NONCOHERENT 916 select GENERIC_ISA_DMA 917 select HAVE_EISA 918 select HAVE_PCSPKR_PLATFORM 919 select HAVE_PCI 920 select IRQ_MIPS_CPU 921 select I8253 922 select I8259 923 select ISA 924 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 925 select SYS_HAS_CPU_R4X00 926 select SYS_HAS_CPU_R5000 927 select SYS_HAS_CPU_R10000 928 select R5000_CPU_SCACHE 929 select SYS_HAS_EARLY_PRINTK 930 select SYS_SUPPORTS_32BIT_KERNEL 931 select SYS_SUPPORTS_64BIT_KERNEL 932 select SYS_SUPPORTS_BIG_ENDIAN 933 select SYS_SUPPORTS_HIGHMEM 934 select SYS_SUPPORTS_LITTLE_ENDIAN 935 help 936 The SNI RM200/300/400 are MIPS-based machines manufactured by 937 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 938 Technology and now in turn merged with Fujitsu. Say Y here to 939 support this machine type. 940 941config MACH_TX39XX 942 bool "Toshiba TX39 series based machines" 943 944config MACH_TX49XX 945 bool "Toshiba TX49 series based machines" 946 947config MIKROTIK_RB532 948 bool "Mikrotik RB532 boards" 949 select CEVT_R4K 950 select CSRC_R4K 951 select DMA_NONCOHERENT 952 select HAVE_PCI 953 select IRQ_MIPS_CPU 954 select SYS_HAS_CPU_MIPS32_R1 955 select SYS_SUPPORTS_32BIT_KERNEL 956 select SYS_SUPPORTS_LITTLE_ENDIAN 957 select SWAP_IO_SPACE 958 select BOOT_RAW 959 select GPIOLIB 960 select MIPS_L1_CACHE_SHIFT_4 961 help 962 Support the Mikrotik(tm) RouterBoard 532 series, 963 based on the IDT RC32434 SoC. 964 965config CAVIUM_OCTEON_SOC 966 bool "Cavium Networks Octeon SoC based boards" 967 select CEVT_R4K 968 select ARCH_HAS_PHYS_TO_DMA 969 select HAVE_RAPIDIO 970 select PHYS_ADDR_T_64BIT 971 select SYS_SUPPORTS_64BIT_KERNEL 972 select SYS_SUPPORTS_BIG_ENDIAN 973 select EDAC_SUPPORT 974 select EDAC_ATOMIC_SCRUB 975 select SYS_SUPPORTS_LITTLE_ENDIAN 976 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 977 select SYS_HAS_EARLY_PRINTK 978 select SYS_HAS_CPU_CAVIUM_OCTEON 979 select HAVE_PCI 980 select ZONE_DMA32 981 select HOLES_IN_ZONE 982 select GPIOLIB 983 select LIBFDT 984 select USE_OF 985 select ARCH_SPARSEMEM_ENABLE 986 select SYS_SUPPORTS_SMP 987 select NR_CPUS_DEFAULT_64 988 select MIPS_NR_CPU_NR_MAP_1024 989 select BUILTIN_DTB 990 select MTD_COMPLEX_MAPPINGS 991 select SWIOTLB 992 select SYS_SUPPORTS_RELOCATABLE 993 help 994 This option supports all of the Octeon reference boards from Cavium 995 Networks. It builds a kernel that dynamically determines the Octeon 996 CPU type and supports all known board reference implementations. 997 Some of the supported boards are: 998 EBT3000 999 EBH3000 1000 EBH3100 1001 Thunder 1002 Kodama 1003 Hikari 1004 Say Y here for most Octeon reference boards. 1005 1006config NLM_XLR_BOARD 1007 bool "Netlogic XLR/XLS based systems" 1008 select BOOT_ELF32 1009 select NLM_COMMON 1010 select SYS_HAS_CPU_XLR 1011 select SYS_SUPPORTS_SMP 1012 select HAVE_PCI 1013 select SWAP_IO_SPACE 1014 select SYS_SUPPORTS_32BIT_KERNEL 1015 select SYS_SUPPORTS_64BIT_KERNEL 1016 select PHYS_ADDR_T_64BIT 1017 select SYS_SUPPORTS_BIG_ENDIAN 1018 select SYS_SUPPORTS_HIGHMEM 1019 select NR_CPUS_DEFAULT_32 1020 select CEVT_R4K 1021 select CSRC_R4K 1022 select IRQ_MIPS_CPU 1023 select ZONE_DMA32 if 64BIT 1024 select SYNC_R4K 1025 select SYS_HAS_EARLY_PRINTK 1026 select SYS_SUPPORTS_ZBOOT 1027 select SYS_SUPPORTS_ZBOOT_UART16550 1028 help 1029 Support for systems based on Netlogic XLR and XLS processors. 1030 Say Y here if you have a XLR or XLS based board. 1031 1032config NLM_XLP_BOARD 1033 bool "Netlogic XLP based systems" 1034 select BOOT_ELF32 1035 select NLM_COMMON 1036 select SYS_HAS_CPU_XLP 1037 select SYS_SUPPORTS_SMP 1038 select HAVE_PCI 1039 select SYS_SUPPORTS_32BIT_KERNEL 1040 select SYS_SUPPORTS_64BIT_KERNEL 1041 select PHYS_ADDR_T_64BIT 1042 select GPIOLIB 1043 select SYS_SUPPORTS_BIG_ENDIAN 1044 select SYS_SUPPORTS_LITTLE_ENDIAN 1045 select SYS_SUPPORTS_HIGHMEM 1046 select NR_CPUS_DEFAULT_32 1047 select CEVT_R4K 1048 select CSRC_R4K 1049 select IRQ_MIPS_CPU 1050 select ZONE_DMA32 if 64BIT 1051 select SYNC_R4K 1052 select SYS_HAS_EARLY_PRINTK 1053 select USE_OF 1054 select SYS_SUPPORTS_ZBOOT 1055 select SYS_SUPPORTS_ZBOOT_UART16550 1056 help 1057 This board is based on Netlogic XLP Processor. 1058 Say Y here if you have a XLP based board. 1059 1060config MIPS_PARAVIRT 1061 bool "Para-Virtualized guest system" 1062 select CEVT_R4K 1063 select CSRC_R4K 1064 select SYS_SUPPORTS_64BIT_KERNEL 1065 select SYS_SUPPORTS_32BIT_KERNEL 1066 select SYS_SUPPORTS_BIG_ENDIAN 1067 select SYS_SUPPORTS_SMP 1068 select NR_CPUS_DEFAULT_4 1069 select SYS_HAS_EARLY_PRINTK 1070 select SYS_HAS_CPU_MIPS32_R2 1071 select SYS_HAS_CPU_MIPS64_R2 1072 select SYS_HAS_CPU_CAVIUM_OCTEON 1073 select HAVE_PCI 1074 select SWAP_IO_SPACE 1075 help 1076 This option supports guest running under ???? 1077 1078endchoice 1079 1080source "arch/mips/alchemy/Kconfig" 1081source "arch/mips/ath25/Kconfig" 1082source "arch/mips/ath79/Kconfig" 1083source "arch/mips/bcm47xx/Kconfig" 1084source "arch/mips/bcm63xx/Kconfig" 1085source "arch/mips/bmips/Kconfig" 1086source "arch/mips/generic/Kconfig" 1087source "arch/mips/jazz/Kconfig" 1088source "arch/mips/jz4740/Kconfig" 1089source "arch/mips/lantiq/Kconfig" 1090source "arch/mips/lasat/Kconfig" 1091source "arch/mips/pic32/Kconfig" 1092source "arch/mips/pistachio/Kconfig" 1093source "arch/mips/pmcs-msp71xx/Kconfig" 1094source "arch/mips/ralink/Kconfig" 1095source "arch/mips/sgi-ip27/Kconfig" 1096source "arch/mips/sibyte/Kconfig" 1097source "arch/mips/txx9/Kconfig" 1098source "arch/mips/vr41xx/Kconfig" 1099source "arch/mips/cavium-octeon/Kconfig" 1100source "arch/mips/loongson2ef/Kconfig" 1101source "arch/mips/loongson32/Kconfig" 1102source "arch/mips/loongson64/Kconfig" 1103source "arch/mips/netlogic/Kconfig" 1104source "arch/mips/paravirt/Kconfig" 1105 1106endmenu 1107 1108config GENERIC_HWEIGHT 1109 bool 1110 default y 1111 1112config GENERIC_CALIBRATE_DELAY 1113 bool 1114 default y 1115 1116config SCHED_OMIT_FRAME_POINTER 1117 bool 1118 default y 1119 1120# 1121# Select some configuration options automatically based on user selections. 1122# 1123config FW_ARC 1124 bool 1125 1126config ARCH_MAY_HAVE_PC_FDC 1127 bool 1128 1129config BOOT_RAW 1130 bool 1131 1132config CEVT_BCM1480 1133 bool 1134 1135config CEVT_DS1287 1136 bool 1137 1138config CEVT_GT641XX 1139 bool 1140 1141config CEVT_R4K 1142 bool 1143 1144config CEVT_SB1250 1145 bool 1146 1147config CEVT_TXX9 1148 bool 1149 1150config CSRC_BCM1480 1151 bool 1152 1153config CSRC_IOASIC 1154 bool 1155 1156config CSRC_R4K 1157 bool 1158 1159config CSRC_SB1250 1160 bool 1161 1162config MIPS_CLOCK_VSYSCALL 1163 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1164 1165config GPIO_TXX9 1166 select GPIOLIB 1167 bool 1168 1169config FW_CFE 1170 bool 1171 1172config ARCH_SUPPORTS_UPROBES 1173 bool 1174 1175config DMA_MAYBE_COHERENT 1176 select ARCH_HAS_DMA_COHERENCE_H 1177 select DMA_NONCOHERENT 1178 bool 1179 1180config DMA_PERDEV_COHERENT 1181 bool 1182 select ARCH_HAS_SETUP_DMA_OPS 1183 select DMA_NONCOHERENT 1184 1185config DMA_NONCOHERENT 1186 bool 1187 # 1188 # MIPS allows mixing "slightly different" Cacheability and Coherency 1189 # Attribute bits. It is believed that the uncached access through 1190 # KSEG1 and the implementation specific "uncached accelerated" used 1191 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1192 # significant advantages. 1193 # 1194 select ARCH_HAS_DMA_WRITE_COMBINE 1195 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1196 select ARCH_HAS_UNCACHED_SEGMENT 1197 select DMA_NONCOHERENT_MMAP 1198 select DMA_NONCOHERENT_CACHE_SYNC 1199 select NEED_DMA_MAP_STATE 1200 1201config SYS_HAS_EARLY_PRINTK 1202 bool 1203 1204config SYS_SUPPORTS_HOTPLUG_CPU 1205 bool 1206 1207config MIPS_BONITO64 1208 bool 1209 1210config MIPS_MSC 1211 bool 1212 1213config MIPS_NILE4 1214 bool 1215 1216config SYNC_R4K 1217 bool 1218 1219config MIPS_MACHINE 1220 def_bool n 1221 1222config NO_IOPORT_MAP 1223 def_bool n 1224 1225config GENERIC_CSUM 1226 bool 1227 default y if !CPU_HAS_LOAD_STORE_LR 1228 1229config GENERIC_ISA_DMA 1230 bool 1231 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1232 select ISA_DMA_API 1233 1234config GENERIC_ISA_DMA_SUPPORT_BROKEN 1235 bool 1236 select GENERIC_ISA_DMA 1237 1238config ISA_DMA_API 1239 bool 1240 1241config HOLES_IN_ZONE 1242 bool 1243 1244config SYS_SUPPORTS_RELOCATABLE 1245 bool 1246 help 1247 Selected if the platform supports relocating the kernel. 1248 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1249 to allow access to command line and entropy sources. 1250 1251config MIPS_CBPF_JIT 1252 def_bool y 1253 depends on BPF_JIT && HAVE_CBPF_JIT 1254 1255config MIPS_EBPF_JIT 1256 def_bool y 1257 depends on BPF_JIT && HAVE_EBPF_JIT 1258 1259 1260# 1261# Endianness selection. Sufficiently obscure so many users don't know what to 1262# answer,so we try hard to limit the available choices. Also the use of a 1263# choice statement should be more obvious to the user. 1264# 1265choice 1266 prompt "Endianness selection" 1267 help 1268 Some MIPS machines can be configured for either little or big endian 1269 byte order. These modes require different kernels and a different 1270 Linux distribution. In general there is one preferred byteorder for a 1271 particular system but some systems are just as commonly used in the 1272 one or the other endianness. 1273 1274config CPU_BIG_ENDIAN 1275 bool "Big endian" 1276 depends on SYS_SUPPORTS_BIG_ENDIAN 1277 1278config CPU_LITTLE_ENDIAN 1279 bool "Little endian" 1280 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1281 1282endchoice 1283 1284config EXPORT_UASM 1285 bool 1286 1287config SYS_SUPPORTS_APM_EMULATION 1288 bool 1289 1290config SYS_SUPPORTS_BIG_ENDIAN 1291 bool 1292 1293config SYS_SUPPORTS_LITTLE_ENDIAN 1294 bool 1295 1296config SYS_SUPPORTS_HUGETLBFS 1297 bool 1298 depends on CPU_SUPPORTS_HUGEPAGES 1299 default y 1300 1301config MIPS_HUGE_TLB_SUPPORT 1302 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1303 1304config IRQ_CPU_RM7K 1305 bool 1306 1307config IRQ_MSP_SLP 1308 bool 1309 1310config IRQ_MSP_CIC 1311 bool 1312 1313config IRQ_TXX9 1314 bool 1315 1316config IRQ_GT641XX 1317 bool 1318 1319config PCI_GT64XXX_PCI0 1320 bool 1321 1322config PCI_XTALK_BRIDGE 1323 bool 1324 1325config NO_EXCEPT_FILL 1326 bool 1327 1328config SOC_EMMA2RH 1329 bool 1330 select CEVT_R4K 1331 select CSRC_R4K 1332 select DMA_NONCOHERENT 1333 select IRQ_MIPS_CPU 1334 select SWAP_IO_SPACE 1335 select SYS_HAS_CPU_R5500 1336 select SYS_SUPPORTS_32BIT_KERNEL 1337 select SYS_SUPPORTS_64BIT_KERNEL 1338 select SYS_SUPPORTS_BIG_ENDIAN 1339 1340config SOC_PNX833X 1341 bool 1342 select CEVT_R4K 1343 select CSRC_R4K 1344 select IRQ_MIPS_CPU 1345 select DMA_NONCOHERENT 1346 select SYS_HAS_CPU_MIPS32_R2 1347 select SYS_SUPPORTS_32BIT_KERNEL 1348 select SYS_SUPPORTS_LITTLE_ENDIAN 1349 select SYS_SUPPORTS_BIG_ENDIAN 1350 select SYS_SUPPORTS_MIPS16 1351 select CPU_MIPSR2_IRQ_VI 1352 1353config SOC_PNX8335 1354 bool 1355 select SOC_PNX833X 1356 1357config MIPS_SPRAM 1358 bool 1359 1360config SWAP_IO_SPACE 1361 bool 1362 1363config SGI_HAS_INDYDOG 1364 bool 1365 1366config SGI_HAS_HAL2 1367 bool 1368 1369config SGI_HAS_SEEQ 1370 bool 1371 1372config SGI_HAS_WD93 1373 bool 1374 1375config SGI_HAS_ZILOG 1376 bool 1377 1378config SGI_HAS_I8042 1379 bool 1380 1381config DEFAULT_SGI_PARTITION 1382 bool 1383 1384config FW_ARC32 1385 bool 1386 1387config FW_SNIPROM 1388 bool 1389 1390config BOOT_ELF32 1391 bool 1392 1393config MIPS_L1_CACHE_SHIFT_4 1394 bool 1395 1396config MIPS_L1_CACHE_SHIFT_5 1397 bool 1398 1399config MIPS_L1_CACHE_SHIFT_6 1400 bool 1401 1402config MIPS_L1_CACHE_SHIFT_7 1403 bool 1404 1405config MIPS_L1_CACHE_SHIFT 1406 int 1407 default "7" if MIPS_L1_CACHE_SHIFT_7 1408 default "6" if MIPS_L1_CACHE_SHIFT_6 1409 default "5" if MIPS_L1_CACHE_SHIFT_5 1410 default "4" if MIPS_L1_CACHE_SHIFT_4 1411 default "5" 1412 1413config HAVE_STD_PC_SERIAL_PORT 1414 bool 1415 1416config ARC_CMDLINE_ONLY 1417 bool 1418 1419config ARC_CONSOLE 1420 bool "ARC console support" 1421 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1422 1423config ARC_MEMORY 1424 bool 1425 1426config ARC_PROMLIB 1427 bool 1428 1429config FW_ARC64 1430 bool 1431 1432config BOOT_ELF64 1433 bool 1434 1435menu "CPU selection" 1436 1437choice 1438 prompt "CPU type" 1439 default CPU_R4X00 1440 1441config CPU_LOONGSON64 1442 bool "Loongson 64-bit CPU" 1443 depends on SYS_HAS_CPU_LOONGSON64 1444 select ARCH_HAS_PHYS_TO_DMA 1445 select CPU_SUPPORTS_64BIT_KERNEL 1446 select CPU_SUPPORTS_HIGHMEM 1447 select CPU_SUPPORTS_HUGEPAGES 1448 select CPU_SUPPORTS_MSA 1449 select CPU_HAS_LOAD_STORE_LR 1450 select WEAK_ORDERING 1451 select WEAK_REORDERING_BEYOND_LLSC 1452 select MIPS_ASID_BITS_VARIABLE 1453 select MIPS_PGD_C0_CONTEXT 1454 select MIPS_L1_CACHE_SHIFT_6 1455 select GPIOLIB 1456 select SWIOTLB 1457 help 1458 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1459 cores implements the MIPS64R2 instruction set with many extensions, 1460 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1461 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1462 Loongson-2E/2F is not covered here and will be removed in future. 1463 1464config LOONGSON3_ENHANCEMENT 1465 bool "New Loongson-3 CPU Enhancements" 1466 default n 1467 select CPU_MIPSR2 1468 select CPU_HAS_PREFETCH 1469 depends on CPU_LOONGSON64 1470 help 1471 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1472 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1473 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1474 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1475 Fast TLB refill support, etc. 1476 1477 This option enable those enhancements which are not probed at run 1478 time. If you want a generic kernel to run on all Loongson 3 machines, 1479 please say 'N' here. If you want a high-performance kernel to run on 1480 new Loongson-3 machines only, please say 'Y' here. 1481 1482config CPU_LOONGSON3_WORKAROUNDS 1483 bool "Old Loongson-3 LLSC Workarounds" 1484 default y if SMP 1485 depends on CPU_LOONGSON64 1486 help 1487 Loongson-3 processors have the llsc issues which require workarounds. 1488 Without workarounds the system may hang unexpectedly. 1489 1490 Newer Loongson-3 will fix these issues and no workarounds are needed. 1491 The workarounds have no significant side effect on them but may 1492 decrease the performance of the system so this option should be 1493 disabled unless the kernel is intended to be run on old systems. 1494 1495 If unsure, please say Y. 1496 1497config CPU_LOONGSON2E 1498 bool "Loongson 2E" 1499 depends on SYS_HAS_CPU_LOONGSON2E 1500 select CPU_LOONGSON2EF 1501 help 1502 The Loongson 2E processor implements the MIPS III instruction set 1503 with many extensions. 1504 1505 It has an internal FPGA northbridge, which is compatible to 1506 bonito64. 1507 1508config CPU_LOONGSON2F 1509 bool "Loongson 2F" 1510 depends on SYS_HAS_CPU_LOONGSON2F 1511 select CPU_LOONGSON2EF 1512 select GPIOLIB 1513 help 1514 The Loongson 2F processor implements the MIPS III instruction set 1515 with many extensions. 1516 1517 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1518 have a similar programming interface with FPGA northbridge used in 1519 Loongson2E. 1520 1521config CPU_LOONGSON1B 1522 bool "Loongson 1B" 1523 depends on SYS_HAS_CPU_LOONGSON1B 1524 select CPU_LOONGSON32 1525 select LEDS_GPIO_REGISTER 1526 help 1527 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1528 Release 1 instruction set and part of the MIPS32 Release 2 1529 instruction set. 1530 1531config CPU_LOONGSON1C 1532 bool "Loongson 1C" 1533 depends on SYS_HAS_CPU_LOONGSON1C 1534 select CPU_LOONGSON32 1535 select LEDS_GPIO_REGISTER 1536 help 1537 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1538 Release 1 instruction set and part of the MIPS32 Release 2 1539 instruction set. 1540 1541config CPU_MIPS32_R1 1542 bool "MIPS32 Release 1" 1543 depends on SYS_HAS_CPU_MIPS32_R1 1544 select CPU_HAS_PREFETCH 1545 select CPU_HAS_LOAD_STORE_LR 1546 select CPU_SUPPORTS_32BIT_KERNEL 1547 select CPU_SUPPORTS_HIGHMEM 1548 help 1549 Choose this option to build a kernel for release 1 or later of the 1550 MIPS32 architecture. Most modern embedded systems with a 32-bit 1551 MIPS processor are based on a MIPS32 processor. If you know the 1552 specific type of processor in your system, choose those that one 1553 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1554 Release 2 of the MIPS32 architecture is available since several 1555 years so chances are you even have a MIPS32 Release 2 processor 1556 in which case you should choose CPU_MIPS32_R2 instead for better 1557 performance. 1558 1559config CPU_MIPS32_R2 1560 bool "MIPS32 Release 2" 1561 depends on SYS_HAS_CPU_MIPS32_R2 1562 select CPU_HAS_PREFETCH 1563 select CPU_HAS_LOAD_STORE_LR 1564 select CPU_SUPPORTS_32BIT_KERNEL 1565 select CPU_SUPPORTS_HIGHMEM 1566 select CPU_SUPPORTS_MSA 1567 select HAVE_KVM 1568 help 1569 Choose this option to build a kernel for release 2 or later of the 1570 MIPS32 architecture. Most modern embedded systems with a 32-bit 1571 MIPS processor are based on a MIPS32 processor. If you know the 1572 specific type of processor in your system, choose those that one 1573 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1574 1575config CPU_MIPS32_R6 1576 bool "MIPS32 Release 6" 1577 depends on SYS_HAS_CPU_MIPS32_R6 1578 select CPU_HAS_PREFETCH 1579 select CPU_SUPPORTS_32BIT_KERNEL 1580 select CPU_SUPPORTS_HIGHMEM 1581 select CPU_SUPPORTS_MSA 1582 select HAVE_KVM 1583 select MIPS_O32_FP64_SUPPORT 1584 help 1585 Choose this option to build a kernel for release 6 or later of the 1586 MIPS32 architecture. New MIPS processors, starting with the Warrior 1587 family, are based on a MIPS32r6 processor. If you own an older 1588 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1589 1590config CPU_MIPS64_R1 1591 bool "MIPS64 Release 1" 1592 depends on SYS_HAS_CPU_MIPS64_R1 1593 select CPU_HAS_PREFETCH 1594 select CPU_HAS_LOAD_STORE_LR 1595 select CPU_SUPPORTS_32BIT_KERNEL 1596 select CPU_SUPPORTS_64BIT_KERNEL 1597 select CPU_SUPPORTS_HIGHMEM 1598 select CPU_SUPPORTS_HUGEPAGES 1599 help 1600 Choose this option to build a kernel for release 1 or later of the 1601 MIPS64 architecture. Many modern embedded systems with a 64-bit 1602 MIPS processor are based on a MIPS64 processor. If you know the 1603 specific type of processor in your system, choose those that one 1604 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1605 Release 2 of the MIPS64 architecture is available since several 1606 years so chances are you even have a MIPS64 Release 2 processor 1607 in which case you should choose CPU_MIPS64_R2 instead for better 1608 performance. 1609 1610config CPU_MIPS64_R2 1611 bool "MIPS64 Release 2" 1612 depends on SYS_HAS_CPU_MIPS64_R2 1613 select CPU_HAS_PREFETCH 1614 select CPU_HAS_LOAD_STORE_LR 1615 select CPU_SUPPORTS_32BIT_KERNEL 1616 select CPU_SUPPORTS_64BIT_KERNEL 1617 select CPU_SUPPORTS_HIGHMEM 1618 select CPU_SUPPORTS_HUGEPAGES 1619 select CPU_SUPPORTS_MSA 1620 select HAVE_KVM 1621 help 1622 Choose this option to build a kernel for release 2 or later of the 1623 MIPS64 architecture. Many modern embedded systems with a 64-bit 1624 MIPS processor are based on a MIPS64 processor. If you know the 1625 specific type of processor in your system, choose those that one 1626 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1627 1628config CPU_MIPS64_R6 1629 bool "MIPS64 Release 6" 1630 depends on SYS_HAS_CPU_MIPS64_R6 1631 select CPU_HAS_PREFETCH 1632 select CPU_SUPPORTS_32BIT_KERNEL 1633 select CPU_SUPPORTS_64BIT_KERNEL 1634 select CPU_SUPPORTS_HIGHMEM 1635 select CPU_SUPPORTS_HUGEPAGES 1636 select CPU_SUPPORTS_MSA 1637 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1638 select HAVE_KVM 1639 help 1640 Choose this option to build a kernel for release 6 or later of the 1641 MIPS64 architecture. New MIPS processors, starting with the Warrior 1642 family, are based on a MIPS64r6 processor. If you own an older 1643 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1644 1645config CPU_R3000 1646 bool "R3000" 1647 depends on SYS_HAS_CPU_R3000 1648 select CPU_HAS_WB 1649 select CPU_HAS_LOAD_STORE_LR 1650 select CPU_R3K_TLB 1651 select CPU_SUPPORTS_32BIT_KERNEL 1652 select CPU_SUPPORTS_HIGHMEM 1653 help 1654 Please make sure to pick the right CPU type. Linux/MIPS is not 1655 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1656 *not* work on R4000 machines and vice versa. However, since most 1657 of the supported machines have an R4000 (or similar) CPU, R4x00 1658 might be a safe bet. If the resulting kernel does not work, 1659 try to recompile with R3000. 1660 1661config CPU_TX39XX 1662 bool "R39XX" 1663 depends on SYS_HAS_CPU_TX39XX 1664 select CPU_SUPPORTS_32BIT_KERNEL 1665 select CPU_HAS_LOAD_STORE_LR 1666 select CPU_R3K_TLB 1667 1668config CPU_VR41XX 1669 bool "R41xx" 1670 depends on SYS_HAS_CPU_VR41XX 1671 select CPU_SUPPORTS_32BIT_KERNEL 1672 select CPU_SUPPORTS_64BIT_KERNEL 1673 select CPU_HAS_LOAD_STORE_LR 1674 help 1675 The options selects support for the NEC VR4100 series of processors. 1676 Only choose this option if you have one of these processors as a 1677 kernel built with this option will not run on any other type of 1678 processor or vice versa. 1679 1680config CPU_R4X00 1681 bool "R4x00" 1682 depends on SYS_HAS_CPU_R4X00 1683 select CPU_SUPPORTS_32BIT_KERNEL 1684 select CPU_SUPPORTS_64BIT_KERNEL 1685 select CPU_SUPPORTS_HUGEPAGES 1686 select CPU_HAS_LOAD_STORE_LR 1687 help 1688 MIPS Technologies R4000-series processors other than 4300, including 1689 the R4000, R4400, R4600, and 4700. 1690 1691config CPU_TX49XX 1692 bool "R49XX" 1693 depends on SYS_HAS_CPU_TX49XX 1694 select CPU_HAS_PREFETCH 1695 select CPU_HAS_LOAD_STORE_LR 1696 select CPU_SUPPORTS_32BIT_KERNEL 1697 select CPU_SUPPORTS_64BIT_KERNEL 1698 select CPU_SUPPORTS_HUGEPAGES 1699 1700config CPU_R5000 1701 bool "R5000" 1702 depends on SYS_HAS_CPU_R5000 1703 select CPU_SUPPORTS_32BIT_KERNEL 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select CPU_SUPPORTS_HUGEPAGES 1706 select CPU_HAS_LOAD_STORE_LR 1707 help 1708 MIPS Technologies R5000-series processors other than the Nevada. 1709 1710config CPU_R5500 1711 bool "R5500" 1712 depends on SYS_HAS_CPU_R5500 1713 select CPU_SUPPORTS_32BIT_KERNEL 1714 select CPU_SUPPORTS_64BIT_KERNEL 1715 select CPU_SUPPORTS_HUGEPAGES 1716 select CPU_HAS_LOAD_STORE_LR 1717 help 1718 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1719 instruction set. 1720 1721config CPU_NEVADA 1722 bool "RM52xx" 1723 depends on SYS_HAS_CPU_NEVADA 1724 select CPU_SUPPORTS_32BIT_KERNEL 1725 select CPU_SUPPORTS_64BIT_KERNEL 1726 select CPU_SUPPORTS_HUGEPAGES 1727 select CPU_HAS_LOAD_STORE_LR 1728 help 1729 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1730 1731config CPU_R10000 1732 bool "R10000" 1733 depends on SYS_HAS_CPU_R10000 1734 select CPU_HAS_PREFETCH 1735 select CPU_HAS_LOAD_STORE_LR 1736 select CPU_SUPPORTS_32BIT_KERNEL 1737 select CPU_SUPPORTS_64BIT_KERNEL 1738 select CPU_SUPPORTS_HIGHMEM 1739 select CPU_SUPPORTS_HUGEPAGES 1740 help 1741 MIPS Technologies R10000-series processors. 1742 1743config CPU_RM7000 1744 bool "RM7000" 1745 depends on SYS_HAS_CPU_RM7000 1746 select CPU_HAS_PREFETCH 1747 select CPU_HAS_LOAD_STORE_LR 1748 select CPU_SUPPORTS_32BIT_KERNEL 1749 select CPU_SUPPORTS_64BIT_KERNEL 1750 select CPU_SUPPORTS_HIGHMEM 1751 select CPU_SUPPORTS_HUGEPAGES 1752 1753config CPU_SB1 1754 bool "SB1" 1755 depends on SYS_HAS_CPU_SB1 1756 select CPU_HAS_LOAD_STORE_LR 1757 select CPU_SUPPORTS_32BIT_KERNEL 1758 select CPU_SUPPORTS_64BIT_KERNEL 1759 select CPU_SUPPORTS_HIGHMEM 1760 select CPU_SUPPORTS_HUGEPAGES 1761 select WEAK_ORDERING 1762 1763config CPU_CAVIUM_OCTEON 1764 bool "Cavium Octeon processor" 1765 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1766 select CPU_HAS_PREFETCH 1767 select CPU_HAS_LOAD_STORE_LR 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select WEAK_ORDERING 1770 select CPU_SUPPORTS_HIGHMEM 1771 select CPU_SUPPORTS_HUGEPAGES 1772 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1773 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1774 select MIPS_L1_CACHE_SHIFT_7 1775 select HAVE_KVM 1776 help 1777 The Cavium Octeon processor is a highly integrated chip containing 1778 many ethernet hardware widgets for networking tasks. The processor 1779 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1780 Full details can be found at http://www.caviumnetworks.com. 1781 1782config CPU_BMIPS 1783 bool "Broadcom BMIPS" 1784 depends on SYS_HAS_CPU_BMIPS 1785 select CPU_MIPS32 1786 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1787 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1788 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1789 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1790 select CPU_SUPPORTS_32BIT_KERNEL 1791 select DMA_NONCOHERENT 1792 select IRQ_MIPS_CPU 1793 select SWAP_IO_SPACE 1794 select WEAK_ORDERING 1795 select CPU_SUPPORTS_HIGHMEM 1796 select CPU_HAS_PREFETCH 1797 select CPU_HAS_LOAD_STORE_LR 1798 select CPU_SUPPORTS_CPUFREQ 1799 select MIPS_EXTERNAL_TIMER 1800 help 1801 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1802 1803config CPU_XLR 1804 bool "Netlogic XLR SoC" 1805 depends on SYS_HAS_CPU_XLR 1806 select CPU_HAS_LOAD_STORE_LR 1807 select CPU_SUPPORTS_32BIT_KERNEL 1808 select CPU_SUPPORTS_64BIT_KERNEL 1809 select CPU_SUPPORTS_HIGHMEM 1810 select CPU_SUPPORTS_HUGEPAGES 1811 select WEAK_ORDERING 1812 select WEAK_REORDERING_BEYOND_LLSC 1813 help 1814 Netlogic Microsystems XLR/XLS processors. 1815 1816config CPU_XLP 1817 bool "Netlogic XLP SoC" 1818 depends on SYS_HAS_CPU_XLP 1819 select CPU_SUPPORTS_32BIT_KERNEL 1820 select CPU_SUPPORTS_64BIT_KERNEL 1821 select CPU_SUPPORTS_HIGHMEM 1822 select WEAK_ORDERING 1823 select WEAK_REORDERING_BEYOND_LLSC 1824 select CPU_HAS_PREFETCH 1825 select CPU_HAS_LOAD_STORE_LR 1826 select CPU_MIPSR2 1827 select CPU_SUPPORTS_HUGEPAGES 1828 select MIPS_ASID_BITS_VARIABLE 1829 help 1830 Netlogic Microsystems XLP processors. 1831endchoice 1832 1833config CPU_MIPS32_3_5_FEATURES 1834 bool "MIPS32 Release 3.5 Features" 1835 depends on SYS_HAS_CPU_MIPS32_R3_5 1836 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1837 help 1838 Choose this option to build a kernel for release 2 or later of the 1839 MIPS32 architecture including features from the 3.5 release such as 1840 support for Enhanced Virtual Addressing (EVA). 1841 1842config CPU_MIPS32_3_5_EVA 1843 bool "Enhanced Virtual Addressing (EVA)" 1844 depends on CPU_MIPS32_3_5_FEATURES 1845 select EVA 1846 default y 1847 help 1848 Choose this option if you want to enable the Enhanced Virtual 1849 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1850 One of its primary benefits is an increase in the maximum size 1851 of lowmem (up to 3GB). If unsure, say 'N' here. 1852 1853config CPU_MIPS32_R5_FEATURES 1854 bool "MIPS32 Release 5 Features" 1855 depends on SYS_HAS_CPU_MIPS32_R5 1856 depends on CPU_MIPS32_R2 1857 help 1858 Choose this option to build a kernel for release 2 or later of the 1859 MIPS32 architecture including features from release 5 such as 1860 support for Extended Physical Addressing (XPA). 1861 1862config CPU_MIPS32_R5_XPA 1863 bool "Extended Physical Addressing (XPA)" 1864 depends on CPU_MIPS32_R5_FEATURES 1865 depends on !EVA 1866 depends on !PAGE_SIZE_4KB 1867 depends on SYS_SUPPORTS_HIGHMEM 1868 select XPA 1869 select HIGHMEM 1870 select PHYS_ADDR_T_64BIT 1871 default n 1872 help 1873 Choose this option if you want to enable the Extended Physical 1874 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1875 benefit is to increase physical addressing equal to or greater 1876 than 40 bits. Note that this has the side effect of turning on 1877 64-bit addressing which in turn makes the PTEs 64-bit in size. 1878 If unsure, say 'N' here. 1879 1880if CPU_LOONGSON2F 1881config CPU_NOP_WORKAROUNDS 1882 bool 1883 1884config CPU_JUMP_WORKAROUNDS 1885 bool 1886 1887config CPU_LOONGSON2F_WORKAROUNDS 1888 bool "Loongson 2F Workarounds" 1889 default y 1890 select CPU_NOP_WORKAROUNDS 1891 select CPU_JUMP_WORKAROUNDS 1892 help 1893 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1894 require workarounds. Without workarounds the system may hang 1895 unexpectedly. For more information please refer to the gas 1896 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1897 1898 Loongson 2F03 and later have fixed these issues and no workarounds 1899 are needed. The workarounds have no significant side effect on them 1900 but may decrease the performance of the system so this option should 1901 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1902 systems. 1903 1904 If unsure, please say Y. 1905endif # CPU_LOONGSON2F 1906 1907config SYS_SUPPORTS_ZBOOT 1908 bool 1909 select HAVE_KERNEL_GZIP 1910 select HAVE_KERNEL_BZIP2 1911 select HAVE_KERNEL_LZ4 1912 select HAVE_KERNEL_LZMA 1913 select HAVE_KERNEL_LZO 1914 select HAVE_KERNEL_XZ 1915 1916config SYS_SUPPORTS_ZBOOT_UART16550 1917 bool 1918 select SYS_SUPPORTS_ZBOOT 1919 1920config SYS_SUPPORTS_ZBOOT_UART_PROM 1921 bool 1922 select SYS_SUPPORTS_ZBOOT 1923 1924config CPU_LOONGSON2EF 1925 bool 1926 select CPU_SUPPORTS_32BIT_KERNEL 1927 select CPU_SUPPORTS_64BIT_KERNEL 1928 select CPU_SUPPORTS_HIGHMEM 1929 select CPU_SUPPORTS_HUGEPAGES 1930 select ARCH_HAS_PHYS_TO_DMA 1931 select CPU_HAS_LOAD_STORE_LR 1932 1933config CPU_LOONGSON32 1934 bool 1935 select CPU_MIPS32 1936 select CPU_MIPSR2 1937 select CPU_HAS_PREFETCH 1938 select CPU_HAS_LOAD_STORE_LR 1939 select CPU_SUPPORTS_32BIT_KERNEL 1940 select CPU_SUPPORTS_HIGHMEM 1941 select CPU_SUPPORTS_CPUFREQ 1942 1943config CPU_BMIPS32_3300 1944 select SMP_UP if SMP 1945 bool 1946 1947config CPU_BMIPS4350 1948 bool 1949 select SYS_SUPPORTS_SMP 1950 select SYS_SUPPORTS_HOTPLUG_CPU 1951 1952config CPU_BMIPS4380 1953 bool 1954 select MIPS_L1_CACHE_SHIFT_6 1955 select SYS_SUPPORTS_SMP 1956 select SYS_SUPPORTS_HOTPLUG_CPU 1957 select CPU_HAS_RIXI 1958 1959config CPU_BMIPS5000 1960 bool 1961 select MIPS_CPU_SCACHE 1962 select MIPS_L1_CACHE_SHIFT_7 1963 select SYS_SUPPORTS_SMP 1964 select SYS_SUPPORTS_HOTPLUG_CPU 1965 select CPU_HAS_RIXI 1966 1967config SYS_HAS_CPU_LOONGSON64 1968 bool 1969 select CPU_SUPPORTS_CPUFREQ 1970 select CPU_HAS_RIXI 1971 1972config SYS_HAS_CPU_LOONGSON2E 1973 bool 1974 1975config SYS_HAS_CPU_LOONGSON2F 1976 bool 1977 select CPU_SUPPORTS_CPUFREQ 1978 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1979 1980config SYS_HAS_CPU_LOONGSON1B 1981 bool 1982 1983config SYS_HAS_CPU_LOONGSON1C 1984 bool 1985 1986config SYS_HAS_CPU_MIPS32_R1 1987 bool 1988 1989config SYS_HAS_CPU_MIPS32_R2 1990 bool 1991 1992config SYS_HAS_CPU_MIPS32_R3_5 1993 bool 1994 1995config SYS_HAS_CPU_MIPS32_R5 1996 bool 1997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1998 1999config SYS_HAS_CPU_MIPS32_R6 2000 bool 2001 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2002 2003config SYS_HAS_CPU_MIPS64_R1 2004 bool 2005 2006config SYS_HAS_CPU_MIPS64_R2 2007 bool 2008 2009config SYS_HAS_CPU_MIPS64_R6 2010 bool 2011 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2012 2013config SYS_HAS_CPU_R3000 2014 bool 2015 2016config SYS_HAS_CPU_TX39XX 2017 bool 2018 2019config SYS_HAS_CPU_VR41XX 2020 bool 2021 2022config SYS_HAS_CPU_R4X00 2023 bool 2024 2025config SYS_HAS_CPU_TX49XX 2026 bool 2027 2028config SYS_HAS_CPU_R5000 2029 bool 2030 2031config SYS_HAS_CPU_R5500 2032 bool 2033 2034config SYS_HAS_CPU_NEVADA 2035 bool 2036 2037config SYS_HAS_CPU_R10000 2038 bool 2039 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2040 2041config SYS_HAS_CPU_RM7000 2042 bool 2043 2044config SYS_HAS_CPU_SB1 2045 bool 2046 2047config SYS_HAS_CPU_CAVIUM_OCTEON 2048 bool 2049 2050config SYS_HAS_CPU_BMIPS 2051 bool 2052 2053config SYS_HAS_CPU_BMIPS32_3300 2054 bool 2055 select SYS_HAS_CPU_BMIPS 2056 2057config SYS_HAS_CPU_BMIPS4350 2058 bool 2059 select SYS_HAS_CPU_BMIPS 2060 2061config SYS_HAS_CPU_BMIPS4380 2062 bool 2063 select SYS_HAS_CPU_BMIPS 2064 2065config SYS_HAS_CPU_BMIPS5000 2066 bool 2067 select SYS_HAS_CPU_BMIPS 2068 select ARCH_HAS_SYNC_DMA_FOR_CPU 2069 2070config SYS_HAS_CPU_XLR 2071 bool 2072 2073config SYS_HAS_CPU_XLP 2074 bool 2075 2076# 2077# CPU may reorder R->R, R->W, W->R, W->W 2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2079# 2080config WEAK_ORDERING 2081 bool 2082 2083# 2084# CPU may reorder reads and writes beyond LL/SC 2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2086# 2087config WEAK_REORDERING_BEYOND_LLSC 2088 bool 2089endmenu 2090 2091# 2092# These two indicate any level of the MIPS32 and MIPS64 architecture 2093# 2094config CPU_MIPS32 2095 bool 2096 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2097 2098config CPU_MIPS64 2099 bool 2100 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2101 2102# 2103# These indicate the revision of the architecture 2104# 2105config CPU_MIPSR1 2106 bool 2107 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2108 2109config CPU_MIPSR2 2110 bool 2111 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2112 select CPU_HAS_RIXI 2113 select MIPS_SPRAM 2114 2115config CPU_MIPSR6 2116 bool 2117 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2118 select CPU_HAS_RIXI 2119 select HAVE_ARCH_BITREVERSE 2120 select MIPS_ASID_BITS_VARIABLE 2121 select MIPS_CRC_SUPPORT 2122 select MIPS_SPRAM 2123 2124config TARGET_ISA_REV 2125 int 2126 default 1 if CPU_MIPSR1 2127 default 2 if CPU_MIPSR2 2128 default 6 if CPU_MIPSR6 2129 default 0 2130 help 2131 Reflects the ISA revision being targeted by the kernel build. This 2132 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2133 2134config EVA 2135 bool 2136 2137config XPA 2138 bool 2139 2140config SYS_SUPPORTS_32BIT_KERNEL 2141 bool 2142config SYS_SUPPORTS_64BIT_KERNEL 2143 bool 2144config CPU_SUPPORTS_32BIT_KERNEL 2145 bool 2146config CPU_SUPPORTS_64BIT_KERNEL 2147 bool 2148config CPU_SUPPORTS_CPUFREQ 2149 bool 2150config CPU_SUPPORTS_ADDRWINCFG 2151 bool 2152config CPU_SUPPORTS_HUGEPAGES 2153 bool 2154 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2155config MIPS_PGD_C0_CONTEXT 2156 bool 2157 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2158 2159# 2160# Set to y for ptrace access to watch registers. 2161# 2162config HARDWARE_WATCHPOINTS 2163 bool 2164 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2165 2166menu "Kernel type" 2167 2168choice 2169 prompt "Kernel code model" 2170 help 2171 You should only select this option if you have a workload that 2172 actually benefits from 64-bit processing or if your machine has 2173 large memory. You will only be presented a single option in this 2174 menu if your system does not support both 32-bit and 64-bit kernels. 2175 2176config 32BIT 2177 bool "32-bit kernel" 2178 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2179 select TRAD_SIGNALS 2180 help 2181 Select this option if you want to build a 32-bit kernel. 2182 2183config 64BIT 2184 bool "64-bit kernel" 2185 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2186 help 2187 Select this option if you want to build a 64-bit kernel. 2188 2189endchoice 2190 2191config KVM_GUEST 2192 bool "KVM Guest Kernel" 2193 depends on BROKEN_ON_SMP 2194 help 2195 Select this option if building a guest kernel for KVM (Trap & Emulate) 2196 mode. 2197 2198config KVM_GUEST_TIMER_FREQ 2199 int "Count/Compare Timer Frequency (MHz)" 2200 depends on KVM_GUEST 2201 default 100 2202 help 2203 Set this to non-zero if building a guest kernel for KVM to skip RTC 2204 emulation when determining guest CPU Frequency. Instead, the guest's 2205 timer frequency is specified directly. 2206 2207config MIPS_VA_BITS_48 2208 bool "48 bits virtual memory" 2209 depends on 64BIT 2210 help 2211 Support a maximum at least 48 bits of application virtual 2212 memory. Default is 40 bits or less, depending on the CPU. 2213 For page sizes 16k and above, this option results in a small 2214 memory overhead for page tables. For 4k page size, a fourth 2215 level of page tables is added which imposes both a memory 2216 overhead as well as slower TLB fault handling. 2217 2218 If unsure, say N. 2219 2220choice 2221 prompt "Kernel page size" 2222 default PAGE_SIZE_4KB 2223 2224config PAGE_SIZE_4KB 2225 bool "4kB" 2226 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2227 help 2228 This option select the standard 4kB Linux page size. On some 2229 R3000-family processors this is the only available page size. Using 2230 4kB page size will minimize memory consumption and is therefore 2231 recommended for low memory systems. 2232 2233config PAGE_SIZE_8KB 2234 bool "8kB" 2235 depends on CPU_CAVIUM_OCTEON 2236 depends on !MIPS_VA_BITS_48 2237 help 2238 Using 8kB page size will result in higher performance kernel at 2239 the price of higher memory consumption. This option is available 2240 only on cnMIPS processors. Note that you will need a suitable Linux 2241 distribution to support this. 2242 2243config PAGE_SIZE_16KB 2244 bool "16kB" 2245 depends on !CPU_R3000 && !CPU_TX39XX 2246 help 2247 Using 16kB page size will result in higher performance kernel at 2248 the price of higher memory consumption. This option is available on 2249 all non-R3000 family processors. Note that you will need a suitable 2250 Linux distribution to support this. 2251 2252config PAGE_SIZE_32KB 2253 bool "32kB" 2254 depends on CPU_CAVIUM_OCTEON 2255 depends on !MIPS_VA_BITS_48 2256 help 2257 Using 32kB page size will result in higher performance kernel at 2258 the price of higher memory consumption. This option is available 2259 only on cnMIPS cores. Note that you will need a suitable Linux 2260 distribution to support this. 2261 2262config PAGE_SIZE_64KB 2263 bool "64kB" 2264 depends on !CPU_R3000 && !CPU_TX39XX 2265 help 2266 Using 64kB page size will result in higher performance kernel at 2267 the price of higher memory consumption. This option is available on 2268 all non-R3000 family processor. Not that at the time of this 2269 writing this option is still high experimental. 2270 2271endchoice 2272 2273config FORCE_MAX_ZONEORDER 2274 int "Maximum zone order" 2275 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2276 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2277 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2278 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2279 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2280 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2281 range 11 64 2282 default "11" 2283 help 2284 The kernel memory allocator divides physically contiguous memory 2285 blocks into "zones", where each zone is a power of two number of 2286 pages. This option selects the largest power of two that the kernel 2287 keeps in the memory allocator. If you need to allocate very large 2288 blocks of physically contiguous memory, then you may need to 2289 increase this value. 2290 2291 This config option is actually maximum order plus one. For example, 2292 a value of 11 means that the largest free memory block is 2^10 pages. 2293 2294 The page size is not necessarily 4KB. Keep this in mind 2295 when choosing a value for this option. 2296 2297config BOARD_SCACHE 2298 bool 2299 2300config IP22_CPU_SCACHE 2301 bool 2302 select BOARD_SCACHE 2303 2304# 2305# Support for a MIPS32 / MIPS64 style S-caches 2306# 2307config MIPS_CPU_SCACHE 2308 bool 2309 select BOARD_SCACHE 2310 2311config R5000_CPU_SCACHE 2312 bool 2313 select BOARD_SCACHE 2314 2315config RM7000_CPU_SCACHE 2316 bool 2317 select BOARD_SCACHE 2318 2319config SIBYTE_DMA_PAGEOPS 2320 bool "Use DMA to clear/copy pages" 2321 depends on CPU_SB1 2322 help 2323 Instead of using the CPU to zero and copy pages, use a Data Mover 2324 channel. These DMA channels are otherwise unused by the standard 2325 SiByte Linux port. Seems to give a small performance benefit. 2326 2327config CPU_HAS_PREFETCH 2328 bool 2329 2330config CPU_GENERIC_DUMP_TLB 2331 bool 2332 default y if !(CPU_R3000 || CPU_TX39XX) 2333 2334config MIPS_FP_SUPPORT 2335 bool "Floating Point support" if EXPERT 2336 default y 2337 help 2338 Select y to include support for floating point in the kernel 2339 including initialization of FPU hardware, FP context save & restore 2340 and emulation of an FPU where necessary. Without this support any 2341 userland program attempting to use floating point instructions will 2342 receive a SIGILL. 2343 2344 If you know that your userland will not attempt to use floating point 2345 instructions then you can say n here to shrink the kernel a little. 2346 2347 If unsure, say y. 2348 2349config CPU_R2300_FPU 2350 bool 2351 depends on MIPS_FP_SUPPORT 2352 default y if CPU_R3000 || CPU_TX39XX 2353 2354config CPU_R3K_TLB 2355 bool 2356 2357config CPU_R4K_FPU 2358 bool 2359 depends on MIPS_FP_SUPPORT 2360 default y if !CPU_R2300_FPU 2361 2362config CPU_R4K_CACHE_TLB 2363 bool 2364 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2365 2366config MIPS_MT_SMP 2367 bool "MIPS MT SMP support (1 TC on each available VPE)" 2368 default y 2369 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2370 select CPU_MIPSR2_IRQ_VI 2371 select CPU_MIPSR2_IRQ_EI 2372 select SYNC_R4K 2373 select MIPS_MT 2374 select SMP 2375 select SMP_UP 2376 select SYS_SUPPORTS_SMP 2377 select SYS_SUPPORTS_SCHED_SMT 2378 select MIPS_PERF_SHARED_TC_COUNTERS 2379 help 2380 This is a kernel model which is known as SMVP. This is supported 2381 on cores with the MT ASE and uses the available VPEs to implement 2382 virtual processors which supports SMP. This is equivalent to the 2383 Intel Hyperthreading feature. For further information go to 2384 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2385 2386config MIPS_MT 2387 bool 2388 2389config SCHED_SMT 2390 bool "SMT (multithreading) scheduler support" 2391 depends on SYS_SUPPORTS_SCHED_SMT 2392 default n 2393 help 2394 SMT scheduler support improves the CPU scheduler's decision making 2395 when dealing with MIPS MT enabled cores at a cost of slightly 2396 increased overhead in some places. If unsure say N here. 2397 2398config SYS_SUPPORTS_SCHED_SMT 2399 bool 2400 2401config SYS_SUPPORTS_MULTITHREADING 2402 bool 2403 2404config MIPS_MT_FPAFF 2405 bool "Dynamic FPU affinity for FP-intensive threads" 2406 default y 2407 depends on MIPS_MT_SMP 2408 2409config MIPSR2_TO_R6_EMULATOR 2410 bool "MIPS R2-to-R6 emulator" 2411 depends on CPU_MIPSR6 2412 depends on MIPS_FP_SUPPORT 2413 default y 2414 help 2415 Choose this option if you want to run non-R6 MIPS userland code. 2416 Even if you say 'Y' here, the emulator will still be disabled by 2417 default. You can enable it using the 'mipsr2emu' kernel option. 2418 The only reason this is a build-time option is to save ~14K from the 2419 final kernel image. 2420 2421config SYS_SUPPORTS_VPE_LOADER 2422 bool 2423 depends on SYS_SUPPORTS_MULTITHREADING 2424 help 2425 Indicates that the platform supports the VPE loader, and provides 2426 physical_memsize. 2427 2428config MIPS_VPE_LOADER 2429 bool "VPE loader support." 2430 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2431 select CPU_MIPSR2_IRQ_VI 2432 select CPU_MIPSR2_IRQ_EI 2433 select MIPS_MT 2434 help 2435 Includes a loader for loading an elf relocatable object 2436 onto another VPE and running it. 2437 2438config MIPS_VPE_LOADER_CMP 2439 bool 2440 default "y" 2441 depends on MIPS_VPE_LOADER && MIPS_CMP 2442 2443config MIPS_VPE_LOADER_MT 2444 bool 2445 default "y" 2446 depends on MIPS_VPE_LOADER && !MIPS_CMP 2447 2448config MIPS_VPE_LOADER_TOM 2449 bool "Load VPE program into memory hidden from linux" 2450 depends on MIPS_VPE_LOADER 2451 default y 2452 help 2453 The loader can use memory that is present but has been hidden from 2454 Linux using the kernel command line option "mem=xxMB". It's up to 2455 you to ensure the amount you put in the option and the space your 2456 program requires is less or equal to the amount physically present. 2457 2458config MIPS_VPE_APSP_API 2459 bool "Enable support for AP/SP API (RTLX)" 2460 depends on MIPS_VPE_LOADER 2461 2462config MIPS_VPE_APSP_API_CMP 2463 bool 2464 default "y" 2465 depends on MIPS_VPE_APSP_API && MIPS_CMP 2466 2467config MIPS_VPE_APSP_API_MT 2468 bool 2469 default "y" 2470 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2471 2472config MIPS_CMP 2473 bool "MIPS CMP framework support (DEPRECATED)" 2474 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2475 select SMP 2476 select SYNC_R4K 2477 select SYS_SUPPORTS_SMP 2478 select WEAK_ORDERING 2479 default n 2480 help 2481 Select this if you are using a bootloader which implements the "CMP 2482 framework" protocol (ie. YAMON) and want your kernel to make use of 2483 its ability to start secondary CPUs. 2484 2485 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2486 instead of this. 2487 2488config MIPS_CPS 2489 bool "MIPS Coherent Processing System support" 2490 depends on SYS_SUPPORTS_MIPS_CPS 2491 select MIPS_CM 2492 select MIPS_CPS_PM if HOTPLUG_CPU 2493 select SMP 2494 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2495 select SYS_SUPPORTS_HOTPLUG_CPU 2496 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2497 select SYS_SUPPORTS_SMP 2498 select WEAK_ORDERING 2499 help 2500 Select this if you wish to run an SMP kernel across multiple cores 2501 within a MIPS Coherent Processing System. When this option is 2502 enabled the kernel will probe for other cores and boot them with 2503 no external assistance. It is safe to enable this when hardware 2504 support is unavailable. 2505 2506config MIPS_CPS_PM 2507 depends on MIPS_CPS 2508 bool 2509 2510config MIPS_CM 2511 bool 2512 select MIPS_CPC 2513 2514config MIPS_CPC 2515 bool 2516 2517config SB1_PASS_2_WORKAROUNDS 2518 bool 2519 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2520 default y 2521 2522config SB1_PASS_2_1_WORKAROUNDS 2523 bool 2524 depends on CPU_SB1 && CPU_SB1_PASS_2 2525 default y 2526 2527choice 2528 prompt "SmartMIPS or microMIPS ASE support" 2529 2530config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2531 bool "None" 2532 help 2533 Select this if you want neither microMIPS nor SmartMIPS support 2534 2535config CPU_HAS_SMARTMIPS 2536 depends on SYS_SUPPORTS_SMARTMIPS 2537 bool "SmartMIPS" 2538 help 2539 SmartMIPS is a extension of the MIPS32 architecture aimed at 2540 increased security at both hardware and software level for 2541 smartcards. Enabling this option will allow proper use of the 2542 SmartMIPS instructions by Linux applications. However a kernel with 2543 this option will not work on a MIPS core without SmartMIPS core. If 2544 you don't know you probably don't have SmartMIPS and should say N 2545 here. 2546 2547config CPU_MICROMIPS 2548 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2549 bool "microMIPS" 2550 help 2551 When this option is enabled the kernel will be built using the 2552 microMIPS ISA 2553 2554endchoice 2555 2556config CPU_HAS_MSA 2557 bool "Support for the MIPS SIMD Architecture" 2558 depends on CPU_SUPPORTS_MSA 2559 depends on MIPS_FP_SUPPORT 2560 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2561 help 2562 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2563 and a set of SIMD instructions to operate on them. When this option 2564 is enabled the kernel will support allocating & switching MSA 2565 vector register contexts. If you know that your kernel will only be 2566 running on CPUs which do not support MSA or that your userland will 2567 not be making use of it then you may wish to say N here to reduce 2568 the size & complexity of your kernel. 2569 2570 If unsure, say Y. 2571 2572config CPU_HAS_WB 2573 bool 2574 2575config XKS01 2576 bool 2577 2578config CPU_HAS_RIXI 2579 bool 2580 2581config CPU_HAS_LOAD_STORE_LR 2582 bool 2583 help 2584 CPU has support for unaligned load and store instructions: 2585 LWL, LWR, SWL, SWR (Load/store word left/right). 2586 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2587 2588# 2589# Vectored interrupt mode is an R2 feature 2590# 2591config CPU_MIPSR2_IRQ_VI 2592 bool 2593 2594# 2595# Extended interrupt mode is an R2 feature 2596# 2597config CPU_MIPSR2_IRQ_EI 2598 bool 2599 2600config CPU_HAS_SYNC 2601 bool 2602 depends on !CPU_R3000 2603 default y 2604 2605# 2606# CPU non-features 2607# 2608config CPU_DADDI_WORKAROUNDS 2609 bool 2610 2611config CPU_R4000_WORKAROUNDS 2612 bool 2613 select CPU_R4400_WORKAROUNDS 2614 2615config CPU_R4400_WORKAROUNDS 2616 bool 2617 2618config CPU_R4X00_BUGS64 2619 bool 2620 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2621 2622config MIPS_ASID_SHIFT 2623 int 2624 default 6 if CPU_R3000 || CPU_TX39XX 2625 default 0 2626 2627config MIPS_ASID_BITS 2628 int 2629 default 0 if MIPS_ASID_BITS_VARIABLE 2630 default 6 if CPU_R3000 || CPU_TX39XX 2631 default 8 2632 2633config MIPS_ASID_BITS_VARIABLE 2634 bool 2635 2636config MIPS_CRC_SUPPORT 2637 bool 2638 2639# 2640# - Highmem only makes sense for the 32-bit kernel. 2641# - The current highmem code will only work properly on physically indexed 2642# caches such as R3000, SB1, R7000 or those that look like they're virtually 2643# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2644# moment we protect the user and offer the highmem option only on machines 2645# where it's known to be safe. This will not offer highmem on a few systems 2646# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2647# indexed CPUs but we're playing safe. 2648# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2649# know they might have memory configurations that could make use of highmem 2650# support. 2651# 2652config HIGHMEM 2653 bool "High Memory Support" 2654 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2655 2656config CPU_SUPPORTS_HIGHMEM 2657 bool 2658 2659config SYS_SUPPORTS_HIGHMEM 2660 bool 2661 2662config SYS_SUPPORTS_SMARTMIPS 2663 bool 2664 2665config SYS_SUPPORTS_MICROMIPS 2666 bool 2667 2668config SYS_SUPPORTS_MIPS16 2669 bool 2670 help 2671 This option must be set if a kernel might be executed on a MIPS16- 2672 enabled CPU even if MIPS16 is not actually being used. In other 2673 words, it makes the kernel MIPS16-tolerant. 2674 2675config CPU_SUPPORTS_MSA 2676 bool 2677 2678config ARCH_FLATMEM_ENABLE 2679 def_bool y 2680 depends on !NUMA && !CPU_LOONGSON2EF 2681 2682config ARCH_SPARSEMEM_ENABLE 2683 bool 2684 select SPARSEMEM_STATIC if !SGI_IP27 2685 2686config NUMA 2687 bool "NUMA Support" 2688 depends on SYS_SUPPORTS_NUMA 2689 help 2690 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2691 Access). This option improves performance on systems with more 2692 than two nodes; on two node systems it is generally better to 2693 leave it disabled; on single node systems disable this option 2694 disabled. 2695 2696config SYS_SUPPORTS_NUMA 2697 bool 2698 2699config RELOCATABLE 2700 bool "Relocatable kernel" 2701 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2702 help 2703 This builds a kernel image that retains relocation information 2704 so it can be loaded someplace besides the default 1MB. 2705 The relocations make the kernel binary about 15% larger, 2706 but are discarded at runtime 2707 2708config RELOCATION_TABLE_SIZE 2709 hex "Relocation table size" 2710 depends on RELOCATABLE 2711 range 0x0 0x01000000 2712 default "0x00100000" 2713 ---help--- 2714 A table of relocation data will be appended to the kernel binary 2715 and parsed at boot to fix up the relocated kernel. 2716 2717 This option allows the amount of space reserved for the table to be 2718 adjusted, although the default of 1Mb should be ok in most cases. 2719 2720 The build will fail and a valid size suggested if this is too small. 2721 2722 If unsure, leave at the default value. 2723 2724config RANDOMIZE_BASE 2725 bool "Randomize the address of the kernel image" 2726 depends on RELOCATABLE 2727 ---help--- 2728 Randomizes the physical and virtual address at which the 2729 kernel image is loaded, as a security feature that 2730 deters exploit attempts relying on knowledge of the location 2731 of kernel internals. 2732 2733 Entropy is generated using any coprocessor 0 registers available. 2734 2735 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2736 2737 If unsure, say N. 2738 2739config RANDOMIZE_BASE_MAX_OFFSET 2740 hex "Maximum kASLR offset" if EXPERT 2741 depends on RANDOMIZE_BASE 2742 range 0x0 0x40000000 if EVA || 64BIT 2743 range 0x0 0x08000000 2744 default "0x01000000" 2745 ---help--- 2746 When kASLR is active, this provides the maximum offset that will 2747 be applied to the kernel image. It should be set according to the 2748 amount of physical RAM available in the target system minus 2749 PHYSICAL_START and must be a power of 2. 2750 2751 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2752 EVA or 64-bit. The default is 16Mb. 2753 2754config NODES_SHIFT 2755 int 2756 default "6" 2757 depends on NEED_MULTIPLE_NODES 2758 2759config HW_PERF_EVENTS 2760 bool "Enable hardware performance counter support for perf events" 2761 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2762 default y 2763 help 2764 Enable hardware performance counter support for perf events. If 2765 disabled, perf events will use software events only. 2766 2767config SMP 2768 bool "Multi-Processing support" 2769 depends on SYS_SUPPORTS_SMP 2770 help 2771 This enables support for systems with more than one CPU. If you have 2772 a system with only one CPU, say N. If you have a system with more 2773 than one CPU, say Y. 2774 2775 If you say N here, the kernel will run on uni- and multiprocessor 2776 machines, but will use only one CPU of a multiprocessor machine. If 2777 you say Y here, the kernel will run on many, but not all, 2778 uniprocessor machines. On a uniprocessor machine, the kernel 2779 will run faster if you say N here. 2780 2781 People using multiprocessor machines who say Y here should also say 2782 Y to "Enhanced Real Time Clock Support", below. 2783 2784 See also the SMP-HOWTO available at 2785 <http://www.tldp.org/docs.html#howto>. 2786 2787 If you don't know what to do here, say N. 2788 2789config HOTPLUG_CPU 2790 bool "Support for hot-pluggable CPUs" 2791 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2792 help 2793 Say Y here to allow turning CPUs off and on. CPUs can be 2794 controlled through /sys/devices/system/cpu. 2795 (Note: power management support will enable this option 2796 automatically on SMP systems. ) 2797 Say N if you want to disable CPU hotplug. 2798 2799config SMP_UP 2800 bool 2801 2802config SYS_SUPPORTS_MIPS_CMP 2803 bool 2804 2805config SYS_SUPPORTS_MIPS_CPS 2806 bool 2807 2808config SYS_SUPPORTS_SMP 2809 bool 2810 2811config NR_CPUS_DEFAULT_4 2812 bool 2813 2814config NR_CPUS_DEFAULT_8 2815 bool 2816 2817config NR_CPUS_DEFAULT_16 2818 bool 2819 2820config NR_CPUS_DEFAULT_32 2821 bool 2822 2823config NR_CPUS_DEFAULT_64 2824 bool 2825 2826config NR_CPUS 2827 int "Maximum number of CPUs (2-256)" 2828 range 2 256 2829 depends on SMP 2830 default "4" if NR_CPUS_DEFAULT_4 2831 default "8" if NR_CPUS_DEFAULT_8 2832 default "16" if NR_CPUS_DEFAULT_16 2833 default "32" if NR_CPUS_DEFAULT_32 2834 default "64" if NR_CPUS_DEFAULT_64 2835 help 2836 This allows you to specify the maximum number of CPUs which this 2837 kernel will support. The maximum supported value is 32 for 32-bit 2838 kernel and 64 for 64-bit kernels; the minimum value which makes 2839 sense is 1 for Qemu (useful only for kernel debugging purposes) 2840 and 2 for all others. 2841 2842 This is purely to save memory - each supported CPU adds 2843 approximately eight kilobytes to the kernel image. For best 2844 performance should round up your number of processors to the next 2845 power of two. 2846 2847config MIPS_PERF_SHARED_TC_COUNTERS 2848 bool 2849 2850config MIPS_NR_CPU_NR_MAP_1024 2851 bool 2852 2853config MIPS_NR_CPU_NR_MAP 2854 int 2855 depends on SMP 2856 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2857 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2858 2859# 2860# Timer Interrupt Frequency Configuration 2861# 2862 2863choice 2864 prompt "Timer frequency" 2865 default HZ_250 2866 help 2867 Allows the configuration of the timer frequency. 2868 2869 config HZ_24 2870 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2871 2872 config HZ_48 2873 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2874 2875 config HZ_100 2876 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2877 2878 config HZ_128 2879 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2880 2881 config HZ_250 2882 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2883 2884 config HZ_256 2885 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2886 2887 config HZ_1000 2888 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2889 2890 config HZ_1024 2891 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2892 2893endchoice 2894 2895config SYS_SUPPORTS_24HZ 2896 bool 2897 2898config SYS_SUPPORTS_48HZ 2899 bool 2900 2901config SYS_SUPPORTS_100HZ 2902 bool 2903 2904config SYS_SUPPORTS_128HZ 2905 bool 2906 2907config SYS_SUPPORTS_250HZ 2908 bool 2909 2910config SYS_SUPPORTS_256HZ 2911 bool 2912 2913config SYS_SUPPORTS_1000HZ 2914 bool 2915 2916config SYS_SUPPORTS_1024HZ 2917 bool 2918 2919config SYS_SUPPORTS_ARBIT_HZ 2920 bool 2921 default y if !SYS_SUPPORTS_24HZ && \ 2922 !SYS_SUPPORTS_48HZ && \ 2923 !SYS_SUPPORTS_100HZ && \ 2924 !SYS_SUPPORTS_128HZ && \ 2925 !SYS_SUPPORTS_250HZ && \ 2926 !SYS_SUPPORTS_256HZ && \ 2927 !SYS_SUPPORTS_1000HZ && \ 2928 !SYS_SUPPORTS_1024HZ 2929 2930config HZ 2931 int 2932 default 24 if HZ_24 2933 default 48 if HZ_48 2934 default 100 if HZ_100 2935 default 128 if HZ_128 2936 default 250 if HZ_250 2937 default 256 if HZ_256 2938 default 1000 if HZ_1000 2939 default 1024 if HZ_1024 2940 2941config SCHED_HRTICK 2942 def_bool HIGH_RES_TIMERS 2943 2944config KEXEC 2945 bool "Kexec system call" 2946 select KEXEC_CORE 2947 help 2948 kexec is a system call that implements the ability to shutdown your 2949 current kernel, and to start another kernel. It is like a reboot 2950 but it is independent of the system firmware. And like a reboot 2951 you can start any kernel with it, not just Linux. 2952 2953 The name comes from the similarity to the exec system call. 2954 2955 It is an ongoing process to be certain the hardware in a machine 2956 is properly shutdown, so do not be surprised if this code does not 2957 initially work for you. As of this writing the exact hardware 2958 interface is strongly in flux, so no good recommendation can be 2959 made. 2960 2961config CRASH_DUMP 2962 bool "Kernel crash dumps" 2963 help 2964 Generate crash dump after being started by kexec. 2965 This should be normally only set in special crash dump kernels 2966 which are loaded in the main kernel with kexec-tools into 2967 a specially reserved region and then later executed after 2968 a crash by kdump/kexec. The crash dump kernel must be compiled 2969 to a memory address not used by the main kernel or firmware using 2970 PHYSICAL_START. 2971 2972config PHYSICAL_START 2973 hex "Physical address where the kernel is loaded" 2974 default "0xffffffff84000000" 2975 depends on CRASH_DUMP 2976 help 2977 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2978 If you plan to use kernel for capturing the crash dump change 2979 this value to start of the reserved region (the "X" value as 2980 specified in the "crashkernel=YM@XM" command line boot parameter 2981 passed to the panic-ed kernel). 2982 2983config SECCOMP 2984 bool "Enable seccomp to safely compute untrusted bytecode" 2985 depends on PROC_FS 2986 default y 2987 help 2988 This kernel feature is useful for number crunching applications 2989 that may need to compute untrusted bytecode during their 2990 execution. By using pipes or other transports made available to 2991 the process as file descriptors supporting the read/write 2992 syscalls, it's possible to isolate those applications in 2993 their own address space using seccomp. Once seccomp is 2994 enabled via /proc/<pid>/seccomp, it cannot be disabled 2995 and the task is only allowed to execute a few safe syscalls 2996 defined by each seccomp mode. 2997 2998 If unsure, say Y. Only embedded should say N here. 2999 3000config MIPS_O32_FP64_SUPPORT 3001 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3002 depends on 32BIT || MIPS32_O32 3003 help 3004 When this is enabled, the kernel will support use of 64-bit floating 3005 point registers with binaries using the O32 ABI along with the 3006 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3007 32-bit MIPS systems this support is at the cost of increasing the 3008 size and complexity of the compiled FPU emulator. Thus if you are 3009 running a MIPS32 system and know that none of your userland binaries 3010 will require 64-bit floating point, you may wish to reduce the size 3011 of your kernel & potentially improve FP emulation performance by 3012 saying N here. 3013 3014 Although binutils currently supports use of this flag the details 3015 concerning its effect upon the O32 ABI in userland are still being 3016 worked on. In order to avoid userland becoming dependant upon current 3017 behaviour before the details have been finalised, this option should 3018 be considered experimental and only enabled by those working upon 3019 said details. 3020 3021 If unsure, say N. 3022 3023config USE_OF 3024 bool 3025 select OF 3026 select OF_EARLY_FLATTREE 3027 select IRQ_DOMAIN 3028 3029config UHI_BOOT 3030 bool 3031 3032config BUILTIN_DTB 3033 bool 3034 3035choice 3036 prompt "Kernel appended dtb support" if USE_OF 3037 default MIPS_NO_APPENDED_DTB 3038 3039 config MIPS_NO_APPENDED_DTB 3040 bool "None" 3041 help 3042 Do not enable appended dtb support. 3043 3044 config MIPS_ELF_APPENDED_DTB 3045 bool "vmlinux" 3046 help 3047 With this option, the boot code will look for a device tree binary 3048 DTB) included in the vmlinux ELF section .appended_dtb. By default 3049 it is empty and the DTB can be appended using binutils command 3050 objcopy: 3051 3052 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3053 3054 This is meant as a backward compatiblity convenience for those 3055 systems with a bootloader that can't be upgraded to accommodate 3056 the documented boot protocol using a device tree. 3057 3058 config MIPS_RAW_APPENDED_DTB 3059 bool "vmlinux.bin or vmlinuz.bin" 3060 help 3061 With this option, the boot code will look for a device tree binary 3062 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3063 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3064 3065 This is meant as a backward compatibility convenience for those 3066 systems with a bootloader that can't be upgraded to accommodate 3067 the documented boot protocol using a device tree. 3068 3069 Beware that there is very little in terms of protection against 3070 this option being confused by leftover garbage in memory that might 3071 look like a DTB header after a reboot if no actual DTB is appended 3072 to vmlinux.bin. Do not leave this option active in a production kernel 3073 if you don't intend to always append a DTB. 3074endchoice 3075 3076choice 3077 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3078 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3079 !MIPS_MALTA && \ 3080 !CAVIUM_OCTEON_SOC 3081 default MIPS_CMDLINE_FROM_BOOTLOADER 3082 3083 config MIPS_CMDLINE_FROM_DTB 3084 depends on USE_OF 3085 bool "Dtb kernel arguments if available" 3086 3087 config MIPS_CMDLINE_DTB_EXTEND 3088 depends on USE_OF 3089 bool "Extend dtb kernel arguments with bootloader arguments" 3090 3091 config MIPS_CMDLINE_FROM_BOOTLOADER 3092 bool "Bootloader kernel arguments if available" 3093 3094 config MIPS_CMDLINE_BUILTIN_EXTEND 3095 depends on CMDLINE_BOOL 3096 bool "Extend builtin kernel arguments with bootloader arguments" 3097endchoice 3098 3099endmenu 3100 3101config LOCKDEP_SUPPORT 3102 bool 3103 default y 3104 3105config STACKTRACE_SUPPORT 3106 bool 3107 default y 3108 3109config PGTABLE_LEVELS 3110 int 3111 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3112 default 3 if 64BIT && !PAGE_SIZE_64KB 3113 default 2 3114 3115config MIPS_AUTO_PFN_OFFSET 3116 bool 3117 3118menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3119 3120config PCI_DRIVERS_GENERIC 3121 select PCI_DOMAINS_GENERIC if PCI 3122 bool 3123 3124config PCI_DRIVERS_LEGACY 3125 def_bool !PCI_DRIVERS_GENERIC 3126 select NO_GENERIC_PCI_IOPORT_MAP 3127 select PCI_DOMAINS if PCI 3128 3129# 3130# ISA support is now enabled via select. Too many systems still have the one 3131# or other ISA chip on the board that users don't know about so don't expect 3132# users to choose the right thing ... 3133# 3134config ISA 3135 bool 3136 3137config TC 3138 bool "TURBOchannel support" 3139 depends on MACH_DECSTATION 3140 help 3141 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3142 processors. TURBOchannel programming specifications are available 3143 at: 3144 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3145 and: 3146 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3147 Linux driver support status is documented at: 3148 <http://www.linux-mips.org/wiki/DECstation> 3149 3150config MMU 3151 bool 3152 default y 3153 3154config ARCH_MMAP_RND_BITS_MIN 3155 default 12 if 64BIT 3156 default 8 3157 3158config ARCH_MMAP_RND_BITS_MAX 3159 default 18 if 64BIT 3160 default 15 3161 3162config ARCH_MMAP_RND_COMPAT_BITS_MIN 3163 default 8 3164 3165config ARCH_MMAP_RND_COMPAT_BITS_MAX 3166 default 15 3167 3168config I8253 3169 bool 3170 select CLKSRC_I8253 3171 select CLKEVT_I8253 3172 select MIPS_EXTERNAL_TIMER 3173 3174config ZONE_DMA 3175 bool 3176 3177config ZONE_DMA32 3178 bool 3179 3180endmenu 3181 3182config TRAD_SIGNALS 3183 bool 3184 3185config MIPS32_COMPAT 3186 bool 3187 3188config COMPAT 3189 bool 3190 3191config SYSVIPC_COMPAT 3192 bool 3193 3194config MIPS32_O32 3195 bool "Kernel support for o32 binaries" 3196 depends on 64BIT 3197 select ARCH_WANT_OLD_COMPAT_IPC 3198 select COMPAT 3199 select MIPS32_COMPAT 3200 select SYSVIPC_COMPAT if SYSVIPC 3201 help 3202 Select this option if you want to run o32 binaries. These are pure 3203 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3204 existing binaries are in this format. 3205 3206 If unsure, say Y. 3207 3208config MIPS32_N32 3209 bool "Kernel support for n32 binaries" 3210 depends on 64BIT 3211 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3212 select COMPAT 3213 select MIPS32_COMPAT 3214 select SYSVIPC_COMPAT if SYSVIPC 3215 help 3216 Select this option if you want to run n32 binaries. These are 3217 64-bit binaries using 32-bit quantities for addressing and certain 3218 data that would normally be 64-bit. They are used in special 3219 cases. 3220 3221 If unsure, say N. 3222 3223config BINFMT_ELF32 3224 bool 3225 default y if MIPS32_O32 || MIPS32_N32 3226 select ELFCORE 3227 3228menu "Power management options" 3229 3230config ARCH_HIBERNATION_POSSIBLE 3231 def_bool y 3232 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3233 3234config ARCH_SUSPEND_POSSIBLE 3235 def_bool y 3236 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3237 3238source "kernel/power/Kconfig" 3239 3240endmenu 3241 3242config MIPS_EXTERNAL_TIMER 3243 bool 3244 3245menu "CPU Power Management" 3246 3247if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3248source "drivers/cpufreq/Kconfig" 3249endif 3250 3251source "drivers/cpuidle/Kconfig" 3252 3253endmenu 3254 3255source "drivers/firmware/Kconfig" 3256 3257source "arch/mips/kvm/Kconfig" 3258