1 # SPDX-License-Identifier: GPL-2.0 !! 1 config MIPS
2 # Hexagon configuration !! 2 bool
3 comment "Linux Kernel Configuration for Hexago !! 3 default y
4 !! 4 select HAVE_GENERIC_DMA_COHERENT
5 config HEXAGON !! 5 select HAVE_IDE
6 def_bool y !! 6 select HAVE_OPROFILE
7 select ARCH_32BIT_OFF_T <<
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE <<
9 select ARCH_NO_PREEMPT <<
10 select ARCH_WANT_FRAME_POINTERS <<
11 select DMA_GLOBAL_POOL <<
12 select HAVE_PAGE_SIZE_4KB <<
13 select HAVE_PAGE_SIZE_16KB <<
14 select HAVE_PAGE_SIZE_64KB <<
15 select HAVE_PAGE_SIZE_256KB <<
16 select FRAME_POINTER <<
17 # Other pending projects/to-do items. <<
18 # select HAVE_REGS_AND_STACK_ACCESS_AP <<
19 # select HAVE_HW_BREAKPOINT if PERF_EV <<
20 # select ARCH_HAS_CPU_IDLE_WAIT <<
21 # select GPIOLIB <<
22 # select HAVE_CLK <<
23 # select GENERIC_PENDING_IRQ if SMP <<
24 select GENERIC_ATOMIC64 <<
25 select HAVE_PERF_EVENTS <<
26 # GENERIC_ALLOCATOR is used by dma_all <<
27 select GENERIC_ALLOCATOR <<
28 select GENERIC_IRQ_PROBE <<
29 select GENERIC_IRQ_SHOW <<
30 select HAVE_ARCH_KGDB 7 select HAVE_ARCH_KGDB
31 select HAVE_ARCH_TRACEHOOK !! 8 # Horrible source of confusion. Die, die, die ...
32 select NEED_SG_DMA_LENGTH !! 9 select EMBEDDED
33 select NO_IOPORT_MAP !! 10 select RTC_LIB if !LEMOTE_FULOONG2E
34 select GENERIC_IOMAP !! 11
35 select GENERIC_IOREMAP !! 12 mainmenu "Linux/MIPS Kernel Configuration"
36 select GENERIC_SMP_IDLE_THREAD !! 13
37 select STACKTRACE_SUPPORT !! 14 menu "Machine selection"
38 select GENERIC_CLOCKEVENTS_BROADCAST !! 15
39 select LOCK_MM_AND_FIND_VMA !! 16 config ZONE_DMA
40 select MODULES_USE_ELF_RELA !! 17 bool
41 select GENERIC_CPU_DEVICES !! 18
42 select ARCH_WANT_LD_ORPHAN_WARN !! 19 choice
43 select TRACE_IRQFLAGS_SUPPORT !! 20 prompt "System type"
>> 21 default SGI_IP22
>> 22
>> 23 config MACH_ALCHEMY
>> 24 bool "Alchemy processor based machines"
>> 25
>> 26 config AR7
>> 27 bool "Texas Instruments AR7"
>> 28 select BOOT_ELF32
>> 29 select DMA_NONCOHERENT
>> 30 select CEVT_R4K
>> 31 select CSRC_R4K
>> 32 select IRQ_CPU
>> 33 select NO_EXCEPT_FILL
>> 34 select SWAP_IO_SPACE
>> 35 select SYS_HAS_CPU_MIPS32_R1
>> 36 select SYS_HAS_EARLY_PRINTK
>> 37 select SYS_SUPPORTS_32BIT_KERNEL
>> 38 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 39 select GENERIC_GPIO
>> 40 select GCD
>> 41 select VLYNQ
44 help 42 help
45 Qualcomm Hexagon is a processor arch !! 43 Support for the Texas Instruments AR7 System-on-a-Chip
46 performance and low power across a w !! 44 family: TNETD7100, 7200 and 7300.
47 45
48 config HEXAGON_PHYS_OFFSET !! 46 config BASLER_EXCITE
49 def_bool y !! 47 bool "Basler eXcite smart camera"
>> 48 select CEVT_R4K
>> 49 select CSRC_R4K
>> 50 select DMA_COHERENT
>> 51 select HW_HAS_PCI
>> 52 select IRQ_CPU
>> 53 select IRQ_CPU_RM7K
>> 54 select IRQ_CPU_RM9K
>> 55 select MIPS_RM9122
>> 56 select SYS_HAS_CPU_RM9000
>> 57 select SYS_SUPPORTS_32BIT_KERNEL
>> 58 select SYS_SUPPORTS_BIG_ENDIAN
50 help 59 help
51 Platforms that don't load the kernel !! 60 The eXcite is a smart camera platform manufactured by
>> 61 Basler Vision Technologies AG.
52 62
53 config LOCKDEP_SUPPORT !! 63 config BCM47XX
54 def_bool y !! 64 bool "BCM47XX based boards"
>> 65 select CEVT_R4K
>> 66 select CSRC_R4K
>> 67 select DMA_NONCOHERENT
>> 68 select HW_HAS_PCI
>> 69 select IRQ_CPU
>> 70 select SYS_HAS_CPU_MIPS32_R1
>> 71 select SYS_SUPPORTS_32BIT_KERNEL
>> 72 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 73 select SSB
>> 74 select SSB_DRIVER_MIPS
>> 75 select SSB_DRIVER_EXTIF
>> 76 select SSB_EMBEDDED
>> 77 select SSB_PCICORE_HOSTMODE if PCI
>> 78 select GENERIC_GPIO
>> 79 select SYS_HAS_EARLY_PRINTK
>> 80 select CFE
>> 81 help
>> 82 Support for BCM47XX based boards
55 83
56 config EARLY_PRINTK !! 84 config BCM63XX
57 def_bool y !! 85 bool "Broadcom BCM63XX based boards"
>> 86 select CEVT_R4K
>> 87 select CSRC_R4K
>> 88 select DMA_NONCOHERENT
>> 89 select IRQ_CPU
>> 90 select SYS_HAS_CPU_MIPS32_R1
>> 91 select SYS_SUPPORTS_32BIT_KERNEL
>> 92 select SYS_SUPPORTS_BIG_ENDIAN
>> 93 select SYS_HAS_EARLY_PRINTK
>> 94 select SWAP_IO_SPACE
>> 95 select ARCH_REQUIRE_GPIOLIB
>> 96 help
>> 97 Support for BCM63XX based boards
58 98
59 config MMU !! 99 config MIPS_COBALT
60 def_bool y !! 100 bool "Cobalt Server"
>> 101 select CEVT_R4K
>> 102 select CSRC_R4K
>> 103 select CEVT_GT641XX
>> 104 select DMA_NONCOHERENT
>> 105 select HW_HAS_PCI
>> 106 select I8253
>> 107 select I8259
>> 108 select IRQ_CPU
>> 109 select IRQ_GT641XX
>> 110 select PCI_GT64XXX_PCI0
>> 111 select PCI
>> 112 select SYS_HAS_CPU_NEVADA
>> 113 select SYS_HAS_EARLY_PRINTK
>> 114 select SYS_SUPPORTS_32BIT_KERNEL
>> 115 select SYS_SUPPORTS_64BIT_KERNEL
>> 116 select SYS_SUPPORTS_LITTLE_ENDIAN
61 117
62 config GENERIC_CSUM !! 118 config MACH_DECSTATION
63 def_bool y !! 119 bool "DECstations"
>> 120 select BOOT_ELF32
>> 121 select CEVT_DS1287
>> 122 select CEVT_R4K
>> 123 select CSRC_IOASIC
>> 124 select CSRC_R4K
>> 125 select CPU_DADDI_WORKAROUNDS if 64BIT
>> 126 select CPU_R4000_WORKAROUNDS if 64BIT
>> 127 select CPU_R4400_WORKAROUNDS if 64BIT
>> 128 select DMA_NONCOHERENT
>> 129 select NO_IOPORT
>> 130 select IRQ_CPU
>> 131 select SYS_HAS_CPU_R3000
>> 132 select SYS_HAS_CPU_R4X00
>> 133 select SYS_SUPPORTS_32BIT_KERNEL
>> 134 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
>> 135 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 136 select SYS_SUPPORTS_128HZ
>> 137 select SYS_SUPPORTS_256HZ
>> 138 select SYS_SUPPORTS_1024HZ
>> 139 help
>> 140 This enables support for DEC's MIPS based workstations. For details
>> 141 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
>> 142 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 143
>> 144 If you have one of the following DECstation Models you definitely
>> 145 want to choose R4xx0 for the CPU Type:
>> 146
>> 147 DECstation 5000/50
>> 148 DECstation 5000/150
>> 149 DECstation 5000/260
>> 150 DECsystem 5900/260
>> 151
>> 152 otherwise choose R3000.
>> 153
>> 154 config MACH_JAZZ
>> 155 bool "Jazz family of machines"
>> 156 select ARC
>> 157 select ARC32
>> 158 select ARCH_MAY_HAVE_PC_FDC
>> 159 select CEVT_R4K
>> 160 select CSRC_R4K
>> 161 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 162 select GENERIC_ISA_DMA
>> 163 select IRQ_CPU
>> 164 select I8253
>> 165 select I8259
>> 166 select ISA
>> 167 select SYS_HAS_CPU_R4X00
>> 168 select SYS_SUPPORTS_32BIT_KERNEL
>> 169 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
>> 170 select SYS_SUPPORTS_100HZ
>> 171 help
>> 172 This a family of machines based on the MIPS R4030 chipset which was
>> 173 used by several vendors to build RISC/os and Windows NT workstations.
>> 174 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
>> 175 Olivetti M700-10 workstations.
>> 176
>> 177 config LASAT
>> 178 bool "LASAT Networks platforms"
>> 179 select CEVT_R4K
>> 180 select CSRC_R4K
>> 181 select DMA_NONCOHERENT
>> 182 select SYS_HAS_EARLY_PRINTK
>> 183 select HW_HAS_PCI
>> 184 select IRQ_CPU
>> 185 select PCI_GT64XXX_PCI0
>> 186 select MIPS_NILE4
>> 187 select R5000_CPU_SCACHE
>> 188 select SYS_HAS_CPU_R5000
>> 189 select SYS_SUPPORTS_32BIT_KERNEL
>> 190 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
>> 191 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 192
>> 193 config MACH_LOONGSON
>> 194 bool "Loongson family of machines"
>> 195 help
>> 196 This enables the support of Loongson family of machines.
>> 197
>> 198 Loongson is a family of general-purpose MIPS-compatible CPUs.
>> 199 developed at Institute of Computing Technology (ICT),
>> 200 Chinese Academy of Sciences (CAS) in the People's Republic
>> 201 of China. The chief architect is Professor Weiwu Hu.
>> 202
>> 203 config MIPS_MALTA
>> 204 bool "MIPS Malta board"
>> 205 select ARCH_MAY_HAVE_PC_FDC
>> 206 select BOOT_ELF32
>> 207 select BOOT_RAW
>> 208 select CEVT_R4K
>> 209 select CSRC_R4K
>> 210 select DMA_NONCOHERENT
>> 211 select GENERIC_ISA_DMA
>> 212 select IRQ_CPU
>> 213 select IRQ_GIC
>> 214 select HW_HAS_PCI
>> 215 select I8253
>> 216 select I8259
>> 217 select MIPS_BOARDS_GEN
>> 218 select MIPS_BONITO64
>> 219 select MIPS_CPU_SCACHE
>> 220 select PCI_GT64XXX_PCI0
>> 221 select MIPS_MSC
>> 222 select SWAP_IO_SPACE
>> 223 select SYS_HAS_CPU_MIPS32_R1
>> 224 select SYS_HAS_CPU_MIPS32_R2
>> 225 select SYS_HAS_CPU_MIPS64_R1
>> 226 select SYS_HAS_CPU_NEVADA
>> 227 select SYS_HAS_CPU_RM7000
>> 228 select SYS_HAS_EARLY_PRINTK
>> 229 select SYS_SUPPORTS_32BIT_KERNEL
>> 230 select SYS_SUPPORTS_64BIT_KERNEL
>> 231 select SYS_SUPPORTS_BIG_ENDIAN
>> 232 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 233 select SYS_SUPPORTS_MIPS_CMP
>> 234 select SYS_SUPPORTS_MULTITHREADING
>> 235 select SYS_SUPPORTS_SMARTMIPS
>> 236 help
>> 237 This enables support for the MIPS Technologies Malta evaluation
>> 238 board.
>> 239
>> 240 config MIPS_SIM
>> 241 bool 'MIPS simulator (MIPSsim)'
>> 242 select CEVT_R4K
>> 243 select CSRC_R4K
>> 244 select DMA_NONCOHERENT
>> 245 select SYS_HAS_EARLY_PRINTK
>> 246 select IRQ_CPU
>> 247 select BOOT_RAW
>> 248 select SYS_HAS_CPU_MIPS32_R1
>> 249 select SYS_HAS_CPU_MIPS32_R2
>> 250 select SYS_HAS_EARLY_PRINTK
>> 251 select SYS_SUPPORTS_32BIT_KERNEL
>> 252 select SYS_SUPPORTS_BIG_ENDIAN
>> 253 select SYS_SUPPORTS_MULTITHREADING
>> 254 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 255 help
>> 256 This option enables support for MIPS Technologies MIPSsim software
>> 257 emulator.
>> 258
>> 259 config NEC_MARKEINS
>> 260 bool "NEC EMMA2RH Mark-eins board"
>> 261 select SOC_EMMA2RH
>> 262 select HW_HAS_PCI
>> 263 help
>> 264 This enables support for the NEC Electronics Mark-eins boards.
>> 265
>> 266 config MACH_VR41XX
>> 267 bool "NEC VR4100 series based machines"
>> 268 select CEVT_R4K
>> 269 select CSRC_R4K
>> 270 select SYS_HAS_CPU_VR41XX
>> 271 select ARCH_REQUIRE_GPIOLIB
>> 272
>> 273 config NXP_STB220
>> 274 bool "NXP STB220 board"
>> 275 select SOC_PNX833X
>> 276 help
>> 277 Support for NXP Semiconductors STB220 Development Board.
>> 278
>> 279 config NXP_STB225
>> 280 bool "NXP 225 board"
>> 281 select SOC_PNX833X
>> 282 select SOC_PNX8335
>> 283 help
>> 284 Support for NXP Semiconductors STB225 Development Board.
>> 285
>> 286 config PNX8550_JBS
>> 287 bool "NXP PNX8550 based JBS board"
>> 288 select PNX8550
>> 289 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 290
>> 291 config PNX8550_STB810
>> 292 bool "NXP PNX8550 based STB810 board"
>> 293 select PNX8550
>> 294 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 295
>> 296 config PMC_MSP
>> 297 bool "PMC-Sierra MSP chipsets"
>> 298 depends on EXPERIMENTAL
>> 299 select DMA_NONCOHERENT
>> 300 select SWAP_IO_SPACE
>> 301 select NO_EXCEPT_FILL
>> 302 select BOOT_RAW
>> 303 select SYS_HAS_CPU_MIPS32_R1
>> 304 select SYS_HAS_CPU_MIPS32_R2
>> 305 select SYS_SUPPORTS_32BIT_KERNEL
>> 306 select SYS_SUPPORTS_BIG_ENDIAN
>> 307 select IRQ_CPU
>> 308 select SERIAL_8250
>> 309 select SERIAL_8250_CONSOLE
>> 310 help
>> 311 This adds support for the PMC-Sierra family of Multi-Service
>> 312 Processor System-On-A-Chips. These parts include a number
>> 313 of integrated peripherals, interfaces and DSPs in addition to
>> 314 a variety of MIPS cores.
>> 315
>> 316 config PMC_YOSEMITE
>> 317 bool "PMC-Sierra Yosemite eval board"
>> 318 select CEVT_R4K
>> 319 select CSRC_R4K
>> 320 select DMA_COHERENT
>> 321 select HW_HAS_PCI
>> 322 select IRQ_CPU
>> 323 select IRQ_CPU_RM7K
>> 324 select IRQ_CPU_RM9K
>> 325 select SWAP_IO_SPACE
>> 326 select SYS_HAS_CPU_RM9000
>> 327 select SYS_HAS_EARLY_PRINTK
>> 328 select SYS_SUPPORTS_32BIT_KERNEL
>> 329 select SYS_SUPPORTS_64BIT_KERNEL
>> 330 select SYS_SUPPORTS_BIG_ENDIAN
>> 331 select SYS_SUPPORTS_HIGHMEM
>> 332 select SYS_SUPPORTS_SMP
>> 333 help
>> 334 Yosemite is an evaluation board for the RM9000x2 processor
>> 335 manufactured by PMC-Sierra.
>> 336
>> 337 config SGI_IP22
>> 338 bool "SGI IP22 (Indy/Indigo2)"
>> 339 select ARC
>> 340 select ARC32
>> 341 select BOOT_ELF32
>> 342 select CEVT_R4K
>> 343 select CSRC_R4K
>> 344 select DEFAULT_SGI_PARTITION
>> 345 select DMA_NONCOHERENT
>> 346 select HW_HAS_EISA
>> 347 select I8253
>> 348 select I8259
>> 349 select IP22_CPU_SCACHE
>> 350 select IRQ_CPU
>> 351 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 352 select SGI_HAS_I8042
>> 353 select SGI_HAS_INDYDOG
>> 354 select SGI_HAS_HAL2
>> 355 select SGI_HAS_SEEQ
>> 356 select SGI_HAS_WD93
>> 357 select SGI_HAS_ZILOG
>> 358 select SWAP_IO_SPACE
>> 359 select SYS_HAS_CPU_R4X00
>> 360 select SYS_HAS_CPU_R5000
>> 361 #
>> 362 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 363 # memory during early boot on some machines.
>> 364 #
>> 365 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 366 # for a more details discussion
>> 367 #
>> 368 # select SYS_HAS_EARLY_PRINTK
>> 369 select SYS_SUPPORTS_32BIT_KERNEL
>> 370 select SYS_SUPPORTS_64BIT_KERNEL
>> 371 select SYS_SUPPORTS_BIG_ENDIAN
>> 372 help
>> 373 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 374 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 375 that runs on these, say Y here.
>> 376
>> 377 config SGI_IP27
>> 378 bool "SGI IP27 (Origin200/2000)"
>> 379 select ARC
>> 380 select ARC64
>> 381 select BOOT_ELF64
>> 382 select DEFAULT_SGI_PARTITION
>> 383 select DMA_COHERENT
>> 384 select SYS_HAS_EARLY_PRINTK
>> 385 select HW_HAS_PCI
>> 386 select NR_CPUS_DEFAULT_64
>> 387 select SYS_HAS_CPU_R10000
>> 388 select SYS_SUPPORTS_64BIT_KERNEL
>> 389 select SYS_SUPPORTS_BIG_ENDIAN
>> 390 select SYS_SUPPORTS_NUMA
>> 391 select SYS_SUPPORTS_SMP
>> 392 help
>> 393 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 394 workstations. To compile a Linux kernel that runs on these, say Y
>> 395 here.
>> 396
>> 397 config SGI_IP28
>> 398 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
>> 399 depends on EXPERIMENTAL
>> 400 select ARC
>> 401 select ARC64
>> 402 select BOOT_ELF64
>> 403 select CEVT_R4K
>> 404 select CSRC_R4K
>> 405 select DEFAULT_SGI_PARTITION
>> 406 select DMA_NONCOHERENT
>> 407 select GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 408 select IRQ_CPU
>> 409 select HW_HAS_EISA
>> 410 select I8253
>> 411 select I8259
>> 412 select SGI_HAS_I8042
>> 413 select SGI_HAS_INDYDOG
>> 414 select SGI_HAS_HAL2
>> 415 select SGI_HAS_SEEQ
>> 416 select SGI_HAS_WD93
>> 417 select SGI_HAS_ZILOG
>> 418 select SWAP_IO_SPACE
>> 419 select SYS_HAS_CPU_R10000
>> 420 #
>> 421 # Disable EARLY_PRINTK for now since it leads to overwritten prom
>> 422 # memory during early boot on some machines.
>> 423 #
>> 424 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
>> 425 # for a more details discussion
>> 426 #
>> 427 # select SYS_HAS_EARLY_PRINTK
>> 428 select SYS_SUPPORTS_64BIT_KERNEL
>> 429 select SYS_SUPPORTS_BIG_ENDIAN
>> 430 help
>> 431 This is the SGI Indigo2 with R10000 processor. To compile a Linux
>> 432 kernel that runs on these, say Y here.
>> 433
>> 434 config SGI_IP32
>> 435 bool "SGI IP32 (O2)"
>> 436 select ARC
>> 437 select ARC32
>> 438 select BOOT_ELF32
>> 439 select CEVT_R4K
>> 440 select CSRC_R4K
>> 441 select DMA_NONCOHERENT
>> 442 select HW_HAS_PCI
>> 443 select IRQ_CPU
>> 444 select R5000_CPU_SCACHE
>> 445 select RM7000_CPU_SCACHE
>> 446 select SYS_HAS_CPU_R5000
>> 447 select SYS_HAS_CPU_R10000 if BROKEN
>> 448 select SYS_HAS_CPU_RM7000
>> 449 select SYS_HAS_CPU_NEVADA
>> 450 select SYS_SUPPORTS_64BIT_KERNEL
>> 451 select SYS_SUPPORTS_BIG_ENDIAN
>> 452 help
>> 453 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 454
>> 455 config SIBYTE_CRHINE
>> 456 bool "Sibyte BCM91120C-CRhine"
>> 457 depends on EXPERIMENTAL
>> 458 select BOOT_ELF32
>> 459 select DMA_COHERENT
>> 460 select SIBYTE_BCM1120
>> 461 select SWAP_IO_SPACE
>> 462 select SYS_HAS_CPU_SB1
>> 463 select SYS_SUPPORTS_BIG_ENDIAN
>> 464 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 465
>> 466 config SIBYTE_CARMEL
>> 467 bool "Sibyte BCM91120x-Carmel"
>> 468 depends on EXPERIMENTAL
>> 469 select BOOT_ELF32
>> 470 select DMA_COHERENT
>> 471 select SIBYTE_BCM1120
>> 472 select SWAP_IO_SPACE
>> 473 select SYS_HAS_CPU_SB1
>> 474 select SYS_SUPPORTS_BIG_ENDIAN
>> 475 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 476
>> 477 config SIBYTE_CRHONE
>> 478 bool "Sibyte BCM91125C-CRhone"
>> 479 depends on EXPERIMENTAL
>> 480 select BOOT_ELF32
>> 481 select DMA_COHERENT
>> 482 select SIBYTE_BCM1125
>> 483 select SWAP_IO_SPACE
>> 484 select SYS_HAS_CPU_SB1
>> 485 select SYS_SUPPORTS_BIG_ENDIAN
>> 486 select SYS_SUPPORTS_HIGHMEM
>> 487 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 488
>> 489 config SIBYTE_RHONE
>> 490 bool "Sibyte BCM91125E-Rhone"
>> 491 depends on EXPERIMENTAL
>> 492 select BOOT_ELF32
>> 493 select DMA_COHERENT
>> 494 select SIBYTE_BCM1125H
>> 495 select SWAP_IO_SPACE
>> 496 select SYS_HAS_CPU_SB1
>> 497 select SYS_SUPPORTS_BIG_ENDIAN
>> 498 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 499
>> 500 config SIBYTE_SWARM
>> 501 bool "Sibyte BCM91250A-SWARM"
>> 502 select BOOT_ELF32
>> 503 select DMA_COHERENT
>> 504 select NR_CPUS_DEFAULT_2
>> 505 select SIBYTE_SB1250
>> 506 select SWAP_IO_SPACE
>> 507 select SYS_HAS_CPU_SB1
>> 508 select SYS_SUPPORTS_BIG_ENDIAN
>> 509 select SYS_SUPPORTS_HIGHMEM
>> 510 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 511 select ZONE_DMA32 if 64BIT
>> 512
>> 513 config SIBYTE_LITTLESUR
>> 514 bool "Sibyte BCM91250C2-LittleSur"
>> 515 depends on EXPERIMENTAL
>> 516 select BOOT_ELF32
>> 517 select DMA_COHERENT
>> 518 select NR_CPUS_DEFAULT_2
>> 519 select SIBYTE_SB1250
>> 520 select SWAP_IO_SPACE
>> 521 select SYS_HAS_CPU_SB1
>> 522 select SYS_SUPPORTS_BIG_ENDIAN
>> 523 select SYS_SUPPORTS_HIGHMEM
>> 524 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 525
>> 526 config SIBYTE_SENTOSA
>> 527 bool "Sibyte BCM91250E-Sentosa"
>> 528 depends on EXPERIMENTAL
>> 529 select BOOT_ELF32
>> 530 select DMA_COHERENT
>> 531 select NR_CPUS_DEFAULT_2
>> 532 select SIBYTE_SB1250
>> 533 select SWAP_IO_SPACE
>> 534 select SYS_HAS_CPU_SB1
>> 535 select SYS_SUPPORTS_BIG_ENDIAN
>> 536 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 537
>> 538 config SIBYTE_BIGSUR
>> 539 bool "Sibyte BCM91480B-BigSur"
>> 540 select BOOT_ELF32
>> 541 select DMA_COHERENT
>> 542 select NR_CPUS_DEFAULT_4
>> 543 select SIBYTE_BCM1x80
>> 544 select SWAP_IO_SPACE
>> 545 select SYS_HAS_CPU_SB1
>> 546 select SYS_SUPPORTS_BIG_ENDIAN
>> 547 select SYS_SUPPORTS_HIGHMEM
>> 548 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 549 select ZONE_DMA32 if 64BIT
>> 550
>> 551 config SNI_RM
>> 552 bool "SNI RM200/300/400"
>> 553 select ARC if CPU_LITTLE_ENDIAN
>> 554 select ARC32 if CPU_LITTLE_ENDIAN
>> 555 select SNIPROM if CPU_BIG_ENDIAN
>> 556 select ARCH_MAY_HAVE_PC_FDC
>> 557 select BOOT_ELF32
>> 558 select CEVT_R4K
>> 559 select CSRC_R4K
>> 560 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
>> 561 select DMA_NONCOHERENT
>> 562 select GENERIC_ISA_DMA
>> 563 select HW_HAS_EISA
>> 564 select HW_HAS_PCI
>> 565 select IRQ_CPU
>> 566 select I8253
>> 567 select I8259
>> 568 select ISA
>> 569 select SWAP_IO_SPACE if CPU_BIG_ENDIAN
>> 570 select SYS_HAS_CPU_R4X00
>> 571 select SYS_HAS_CPU_R5000
>> 572 select SYS_HAS_CPU_R10000
>> 573 select R5000_CPU_SCACHE
>> 574 select SYS_HAS_EARLY_PRINTK
>> 575 select SYS_SUPPORTS_32BIT_KERNEL
>> 576 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
>> 577 select SYS_SUPPORTS_BIG_ENDIAN
>> 578 select SYS_SUPPORTS_HIGHMEM
>> 579 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 580 help
>> 581 The SNI RM200/300/400 are MIPS-based machines manufactured by
>> 582 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 583 Technology and now in turn merged with Fujitsu. Say Y here to
>> 584 support this machine type.
>> 585
>> 586 config MACH_TX39XX
>> 587 bool "Toshiba TX39 series based machines"
>> 588
>> 589 config MACH_TX49XX
>> 590 bool "Toshiba TX49 series based machines"
>> 591
>> 592 config MIKROTIK_RB532
>> 593 bool "Mikrotik RB532 boards"
>> 594 select CEVT_R4K
>> 595 select CSRC_R4K
>> 596 select DMA_NONCOHERENT
>> 597 select HW_HAS_PCI
>> 598 select IRQ_CPU
>> 599 select SYS_HAS_CPU_MIPS32_R1
>> 600 select SYS_SUPPORTS_32BIT_KERNEL
>> 601 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 602 select SWAP_IO_SPACE
>> 603 select BOOT_RAW
>> 604 select ARCH_REQUIRE_GPIOLIB
>> 605 help
>> 606 Support the Mikrotik(tm) RouterBoard 532 series,
>> 607 based on the IDT RC32434 SoC.
>> 608
>> 609 config WR_PPMC
>> 610 bool "Wind River PPMC board"
>> 611 select CEVT_R4K
>> 612 select CSRC_R4K
>> 613 select IRQ_CPU
>> 614 select BOOT_ELF32
>> 615 select DMA_NONCOHERENT
>> 616 select HW_HAS_PCI
>> 617 select PCI_GT64XXX_PCI0
>> 618 select SWAP_IO_SPACE
>> 619 select SYS_HAS_CPU_MIPS32_R1
>> 620 select SYS_HAS_CPU_MIPS32_R2
>> 621 select SYS_HAS_CPU_MIPS64_R1
>> 622 select SYS_HAS_CPU_NEVADA
>> 623 select SYS_HAS_CPU_RM7000
>> 624 select SYS_SUPPORTS_32BIT_KERNEL
>> 625 select SYS_SUPPORTS_64BIT_KERNEL
>> 626 select SYS_SUPPORTS_BIG_ENDIAN
>> 627 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 628 help
>> 629 This enables support for the Wind River MIPS32 4KC PPMC evaluation
>> 630 board, which is based on GT64120 bridge chip.
>> 631
>> 632 config CAVIUM_OCTEON_SIMULATOR
>> 633 bool "Cavium Networks Octeon Simulator"
>> 634 select CEVT_R4K
>> 635 select 64BIT_PHYS_ADDR
>> 636 select DMA_COHERENT
>> 637 select SYS_SUPPORTS_64BIT_KERNEL
>> 638 select SYS_SUPPORTS_BIG_ENDIAN
>> 639 select SYS_SUPPORTS_HIGHMEM
>> 640 select SYS_SUPPORTS_HOTPLUG_CPU
>> 641 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 642 help
>> 643 The Octeon simulator is software performance model of the Cavium
>> 644 Octeon Processor. It supports simulating Octeon processors on x86
>> 645 hardware.
>> 646
>> 647 config CAVIUM_OCTEON_REFERENCE_BOARD
>> 648 bool "Cavium Networks Octeon reference board"
>> 649 select CEVT_R4K
>> 650 select 64BIT_PHYS_ADDR
>> 651 select DMA_COHERENT
>> 652 select SYS_SUPPORTS_64BIT_KERNEL
>> 653 select SYS_SUPPORTS_BIG_ENDIAN
>> 654 select SYS_SUPPORTS_HIGHMEM
>> 655 select SYS_SUPPORTS_HOTPLUG_CPU
>> 656 select SYS_HAS_EARLY_PRINTK
>> 657 select SYS_HAS_CPU_CAVIUM_OCTEON
>> 658 select SWAP_IO_SPACE
>> 659 select HW_HAS_PCI
>> 660 select ARCH_SUPPORTS_MSI
>> 661 help
>> 662 This option supports all of the Octeon reference boards from Cavium
>> 663 Networks. It builds a kernel that dynamically determines the Octeon
>> 664 CPU type and supports all known board reference implementations.
>> 665 Some of the supported boards are:
>> 666 EBT3000
>> 667 EBH3000
>> 668 EBH3100
>> 669 Thunder
>> 670 Kodama
>> 671 Hikari
>> 672 Say Y here for most Octeon reference boards.
>> 673
>> 674 endchoice
>> 675
>> 676 source "arch/mips/alchemy/Kconfig"
>> 677 source "arch/mips/basler/excite/Kconfig"
>> 678 source "arch/mips/bcm63xx/Kconfig"
>> 679 source "arch/mips/jazz/Kconfig"
>> 680 source "arch/mips/lasat/Kconfig"
>> 681 source "arch/mips/pmc-sierra/Kconfig"
>> 682 source "arch/mips/sgi-ip27/Kconfig"
>> 683 source "arch/mips/sibyte/Kconfig"
>> 684 source "arch/mips/txx9/Kconfig"
>> 685 source "arch/mips/vr41xx/Kconfig"
>> 686 source "arch/mips/cavium-octeon/Kconfig"
>> 687 source "arch/mips/loongson/Kconfig"
>> 688
>> 689 endmenu
>> 690
>> 691 config RWSEM_GENERIC_SPINLOCK
>> 692 bool
>> 693 default y
>> 694
>> 695 config RWSEM_XCHGADD_ALGORITHM
>> 696 bool
>> 697
>> 698 config ARCH_HAS_ILOG2_U32
>> 699 bool
>> 700 default n
>> 701
>> 702 config ARCH_HAS_ILOG2_U64
>> 703 bool
>> 704 default n
>> 705
>> 706 config ARCH_SUPPORTS_OPROFILE
>> 707 bool
>> 708 default y if !MIPS_MT_SMTC
>> 709
>> 710 config GENERIC_FIND_NEXT_BIT
>> 711 bool
>> 712 default y
64 713
65 config GENERIC_HWEIGHT 714 config GENERIC_HWEIGHT
66 def_bool y !! 715 bool
>> 716 default y
67 717
68 config STACKTRACE_SUPPORT !! 718 config GENERIC_CALIBRATE_DELAY
69 def_bool y !! 719 bool
70 select STACKTRACE !! 720 default y
>> 721
>> 722 config GENERIC_CLOCKEVENTS
>> 723 bool
>> 724 default y
>> 725
>> 726 config GENERIC_TIME
>> 727 bool
>> 728 default y
>> 729
>> 730 config GENERIC_CMOS_UPDATE
>> 731 bool
>> 732 default y
71 733
72 config GENERIC_BUG !! 734 config SCHED_OMIT_FRAME_POINTER
>> 735 bool
>> 736 default y
>> 737
>> 738 config GENERIC_HARDIRQS_NO__DO_IRQ
73 def_bool y 739 def_bool y
74 depends on BUG <<
75 740
76 menu "Machine selection" !! 741 #
>> 742 # Select some configuration options automatically based on user selections.
>> 743 #
>> 744 config ARC
>> 745 bool
>> 746
>> 747 config ARCH_MAY_HAVE_PC_FDC
>> 748 bool
>> 749
>> 750 config BOOT_RAW
>> 751 bool
>> 752
>> 753 config CEVT_BCM1480
>> 754 bool
>> 755
>> 756 config CEVT_DS1287
>> 757 bool
>> 758
>> 759 config CEVT_GT641XX
>> 760 bool
>> 761
>> 762 config CEVT_R4K_LIB
>> 763 bool
>> 764
>> 765 config CEVT_R4K
>> 766 select CEVT_R4K_LIB
>> 767 bool
>> 768
>> 769 config CEVT_SB1250
>> 770 bool
>> 771
>> 772 config CEVT_TXX9
>> 773 bool
>> 774
>> 775 config CSRC_BCM1480
>> 776 bool
>> 777
>> 778 config CSRC_IOASIC
>> 779 bool
>> 780
>> 781 config CSRC_R4K_LIB
>> 782 bool
>> 783
>> 784 config CSRC_R4K
>> 785 select CSRC_R4K_LIB
>> 786 bool
>> 787
>> 788 config CSRC_SB1250
>> 789 bool
>> 790
>> 791 config GPIO_TXX9
>> 792 select GENERIC_GPIO
>> 793 select ARCH_REQUIRE_GPIOLIB
>> 794 bool
>> 795
>> 796 config CFE
>> 797 bool
>> 798
>> 799 config DMA_COHERENT
>> 800 bool
>> 801
>> 802 config DMA_NONCOHERENT
>> 803 bool
>> 804 select DMA_NEED_PCI_MAP_STATE
>> 805
>> 806 config DMA_NEED_PCI_MAP_STATE
>> 807 bool
77 808
>> 809 config EARLY_PRINTK
>> 810 bool "Early printk" if EMBEDDED && DEBUG_KERNEL
>> 811 depends on SYS_HAS_EARLY_PRINTK
>> 812 default y
>> 813 help
>> 814 This option enables special console drivers which allow the kernel
>> 815 to print messages very early in the bootup process.
>> 816
>> 817 This is useful for kernel debugging when your machine crashes very
>> 818 early before the console code is initialized. For normal operation,
>> 819 it is not recommended because it looks ugly on some machines and
>> 820 doesn't cooperate with an X server. You should normally say N here,
>> 821 unless you want to debug such a crash.
>> 822
>> 823 config SYS_HAS_EARLY_PRINTK
>> 824 bool
>> 825
>> 826 config HOTPLUG_CPU
>> 827 bool "Support for hot-pluggable CPUs"
>> 828 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
>> 829 help
>> 830 Say Y here to allow turning CPUs off and on. CPUs can be
>> 831 controlled through /sys/devices/system/cpu.
>> 832 (Note: power management support will enable this option
>> 833 automatically on SMP systems. )
>> 834 Say N if you want to disable CPU hotplug.
>> 835
>> 836 config SYS_SUPPORTS_HOTPLUG_CPU
>> 837 bool
>> 838
>> 839 config I8259
>> 840 bool
>> 841
>> 842 config MIPS_BONITO64
>> 843 bool
>> 844
>> 845 config MIPS_MSC
>> 846 bool
>> 847
>> 848 config MIPS_NILE4
>> 849 bool
>> 850
>> 851 config MIPS_DISABLE_OBSOLETE_IDE
>> 852 bool
>> 853
>> 854 config SYNC_R4K
>> 855 bool
>> 856
>> 857 config NO_IOPORT
>> 858 def_bool n
>> 859
>> 860 config GENERIC_ISA_DMA
>> 861 bool
>> 862 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
>> 863
>> 864 config GENERIC_ISA_DMA_SUPPORT_BROKEN
>> 865 bool
>> 866 select GENERIC_ISA_DMA
>> 867
>> 868 config GENERIC_GPIO
>> 869 bool
>> 870
>> 871 #
>> 872 # Endianess selection. Sufficiently obscure so many users don't know what to
>> 873 # answer,so we try hard to limit the available choices. Also the use of a
>> 874 # choice statement should be more obvious to the user.
>> 875 #
78 choice 876 choice
79 prompt "System type" !! 877 prompt "Endianess selection"
80 default HEXAGON_COMET !! 878 help
>> 879 Some MIPS machines can be configured for either little or big endian
>> 880 byte order. These modes require different kernels and a different
>> 881 Linux distribution. In general there is one preferred byteorder for a
>> 882 particular system but some systems are just as commonly used in the
>> 883 one or the other endianness.
>> 884
>> 885 config CPU_BIG_ENDIAN
>> 886 bool "Big endian"
>> 887 depends on SYS_SUPPORTS_BIG_ENDIAN
81 888
82 config HEXAGON_COMET !! 889 config CPU_LITTLE_ENDIAN
83 bool "Comet Board" !! 890 bool "Little endian"
>> 891 depends on SYS_SUPPORTS_LITTLE_ENDIAN
84 help 892 help
85 Support for the Comet platform. <<
86 893
87 endchoice 894 endchoice
88 895
89 config HEXAGON_ARCH_VERSION !! 896 config SYS_SUPPORTS_APM_EMULATION
90 int "Architecture version" !! 897 bool
91 default 2 !! 898
>> 899 config SYS_SUPPORTS_BIG_ENDIAN
>> 900 bool
>> 901
>> 902 config SYS_SUPPORTS_LITTLE_ENDIAN
>> 903 bool
>> 904
>> 905 config SYS_SUPPORTS_HUGETLBFS
>> 906 bool
>> 907 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
>> 908 default y
>> 909
>> 910 config IRQ_CPU
>> 911 bool
>> 912
>> 913 config IRQ_CPU_RM7K
>> 914 bool
>> 915
>> 916 config IRQ_CPU_RM9K
>> 917 bool
>> 918
>> 919 config IRQ_MSP_SLP
>> 920 bool
>> 921
>> 922 config IRQ_MSP_CIC
>> 923 bool
>> 924
>> 925 config IRQ_TXX9
>> 926 bool
>> 927
>> 928 config IRQ_GT641XX
>> 929 bool
>> 930
>> 931 config IRQ_GIC
>> 932 bool
>> 933
>> 934 config IRQ_CPU_OCTEON
>> 935 bool
>> 936
>> 937 config MIPS_BOARDS_GEN
>> 938 bool
>> 939
>> 940 config PCI_GT64XXX_PCI0
>> 941 bool
>> 942
>> 943 config NO_EXCEPT_FILL
>> 944 bool
>> 945
>> 946 config MIPS_RM9122
>> 947 bool
>> 948 select SERIAL_RM9000
>> 949
>> 950 config SOC_EMMA2RH
>> 951 bool
>> 952 select CEVT_R4K
>> 953 select CSRC_R4K
>> 954 select DMA_NONCOHERENT
>> 955 select IRQ_CPU
>> 956 select SWAP_IO_SPACE
>> 957 select SYS_HAS_CPU_R5500
>> 958 select SYS_SUPPORTS_32BIT_KERNEL
>> 959 select SYS_SUPPORTS_64BIT_KERNEL
>> 960 select SYS_SUPPORTS_BIG_ENDIAN
>> 961
>> 962 config SOC_PNX833X
>> 963 bool
>> 964 select CEVT_R4K
>> 965 select CSRC_R4K
>> 966 select IRQ_CPU
>> 967 select DMA_NONCOHERENT
>> 968 select SYS_HAS_CPU_MIPS32_R2
>> 969 select SYS_SUPPORTS_32BIT_KERNEL
>> 970 select SYS_SUPPORTS_LITTLE_ENDIAN
>> 971 select SYS_SUPPORTS_BIG_ENDIAN
>> 972 select GENERIC_GPIO
>> 973 select CPU_MIPSR2_IRQ_VI
>> 974
>> 975 config SOC_PNX8335
>> 976 bool
>> 977 select SOC_PNX833X
>> 978
>> 979 config PNX8550
>> 980 bool
>> 981 select SOC_PNX8550
>> 982
>> 983 config SOC_PNX8550
>> 984 bool
>> 985 select DMA_NONCOHERENT
>> 986 select HW_HAS_PCI
>> 987 select SYS_HAS_CPU_MIPS32_R1
>> 988 select SYS_HAS_EARLY_PRINTK
>> 989 select SYS_SUPPORTS_32BIT_KERNEL
>> 990 select GENERIC_GPIO
>> 991
>> 992 config SWAP_IO_SPACE
>> 993 bool
>> 994
>> 995 config SERIAL_RM9000
>> 996 bool
>> 997
>> 998 config SGI_HAS_INDYDOG
>> 999 bool
>> 1000
>> 1001 config SGI_HAS_HAL2
>> 1002 bool
>> 1003
>> 1004 config SGI_HAS_SEEQ
>> 1005 bool
>> 1006
>> 1007 config SGI_HAS_WD93
>> 1008 bool
>> 1009
>> 1010 config SGI_HAS_ZILOG
>> 1011 bool
>> 1012
>> 1013 config SGI_HAS_I8042
>> 1014 bool
>> 1015
>> 1016 config DEFAULT_SGI_PARTITION
>> 1017 bool
>> 1018
>> 1019 config ARC32
>> 1020 bool
>> 1021
>> 1022 config SNIPROM
>> 1023 bool
>> 1024
>> 1025 config BOOT_ELF32
>> 1026 bool
>> 1027
>> 1028 config MIPS_L1_CACHE_SHIFT
>> 1029 int
>> 1030 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
>> 1031 default "6" if MIPS_CPU_SCACHE
>> 1032 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
>> 1033 default "5"
>> 1034
>> 1035 config HAVE_STD_PC_SERIAL_PORT
>> 1036 bool
>> 1037
>> 1038 config ARC_CONSOLE
>> 1039 bool "ARC console support"
>> 1040 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
92 1041
93 config CMDLINE !! 1042 config ARC_MEMORY
94 string "Default kernel command string" !! 1043 bool
95 default "" !! 1044 depends on MACH_JAZZ || SNI_RM || SGI_IP32
>> 1045 default y
>> 1046
>> 1047 config ARC_PROMLIB
>> 1048 bool
>> 1049 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
>> 1050 default y
>> 1051
>> 1052 config ARC64
>> 1053 bool
>> 1054
>> 1055 config BOOT_ELF64
>> 1056 bool
>> 1057
>> 1058 menu "CPU selection"
>> 1059
>> 1060 choice
>> 1061 prompt "CPU type"
>> 1062 default CPU_R4X00
>> 1063
>> 1064 config CPU_LOONGSON2E
>> 1065 bool "Loongson 2E"
>> 1066 depends on SYS_HAS_CPU_LOONGSON2E
>> 1067 select CPU_LOONGSON2
>> 1068 help
>> 1069 The Loongson 2E processor implements the MIPS III instruction set
>> 1070 with many extensions.
>> 1071
>> 1072 config CPU_MIPS32_R1
>> 1073 bool "MIPS32 Release 1"
>> 1074 depends on SYS_HAS_CPU_MIPS32_R1
>> 1075 select CPU_HAS_PREFETCH
>> 1076 select CPU_SUPPORTS_32BIT_KERNEL
>> 1077 select CPU_SUPPORTS_HIGHMEM
>> 1078 help
>> 1079 Choose this option to build a kernel for release 1 or later of the
>> 1080 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1081 MIPS processor are based on a MIPS32 processor. If you know the
>> 1082 specific type of processor in your system, choose those that one
>> 1083 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1084 Release 2 of the MIPS32 architecture is available since several
>> 1085 years so chances are you even have a MIPS32 Release 2 processor
>> 1086 in which case you should choose CPU_MIPS32_R2 instead for better
>> 1087 performance.
>> 1088
>> 1089 config CPU_MIPS32_R2
>> 1090 bool "MIPS32 Release 2"
>> 1091 depends on SYS_HAS_CPU_MIPS32_R2
>> 1092 select CPU_HAS_PREFETCH
>> 1093 select CPU_SUPPORTS_32BIT_KERNEL
>> 1094 select CPU_SUPPORTS_HIGHMEM
>> 1095 help
>> 1096 Choose this option to build a kernel for release 2 or later of the
>> 1097 MIPS32 architecture. Most modern embedded systems with a 32-bit
>> 1098 MIPS processor are based on a MIPS32 processor. If you know the
>> 1099 specific type of processor in your system, choose those that one
>> 1100 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
>> 1101
>> 1102 config CPU_MIPS64_R1
>> 1103 bool "MIPS64 Release 1"
>> 1104 depends on SYS_HAS_CPU_MIPS64_R1
>> 1105 select CPU_HAS_PREFETCH
>> 1106 select CPU_SUPPORTS_32BIT_KERNEL
>> 1107 select CPU_SUPPORTS_64BIT_KERNEL
>> 1108 select CPU_SUPPORTS_HIGHMEM
>> 1109 select CPU_SUPPORTS_HUGEPAGES
>> 1110 help
>> 1111 Choose this option to build a kernel for release 1 or later of the
>> 1112 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1113 MIPS processor are based on a MIPS64 processor. If you know the
>> 1114 specific type of processor in your system, choose those that one
>> 1115 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1116 Release 2 of the MIPS64 architecture is available since several
>> 1117 years so chances are you even have a MIPS64 Release 2 processor
>> 1118 in which case you should choose CPU_MIPS64_R2 instead for better
>> 1119 performance.
>> 1120
>> 1121 config CPU_MIPS64_R2
>> 1122 bool "MIPS64 Release 2"
>> 1123 depends on SYS_HAS_CPU_MIPS64_R2
>> 1124 select CPU_HAS_PREFETCH
>> 1125 select CPU_SUPPORTS_32BIT_KERNEL
>> 1126 select CPU_SUPPORTS_64BIT_KERNEL
>> 1127 select CPU_SUPPORTS_HIGHMEM
>> 1128 select CPU_SUPPORTS_HUGEPAGES
>> 1129 help
>> 1130 Choose this option to build a kernel for release 2 or later of the
>> 1131 MIPS64 architecture. Many modern embedded systems with a 64-bit
>> 1132 MIPS processor are based on a MIPS64 processor. If you know the
>> 1133 specific type of processor in your system, choose those that one
>> 1134 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
>> 1135
>> 1136 config CPU_R3000
>> 1137 bool "R3000"
>> 1138 depends on SYS_HAS_CPU_R3000
>> 1139 select CPU_HAS_WB
>> 1140 select CPU_SUPPORTS_32BIT_KERNEL
>> 1141 select CPU_SUPPORTS_HIGHMEM
>> 1142 help
>> 1143 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 1144 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 1145 *not* work on R4000 machines and vice versa. However, since most
>> 1146 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 1147 might be a safe bet. If the resulting kernel does not work,
>> 1148 try to recompile with R3000.
>> 1149
>> 1150 config CPU_TX39XX
>> 1151 bool "R39XX"
>> 1152 depends on SYS_HAS_CPU_TX39XX
>> 1153 select CPU_SUPPORTS_32BIT_KERNEL
>> 1154
>> 1155 config CPU_VR41XX
>> 1156 bool "R41xx"
>> 1157 depends on SYS_HAS_CPU_VR41XX
>> 1158 select CPU_SUPPORTS_32BIT_KERNEL
>> 1159 select CPU_SUPPORTS_64BIT_KERNEL
>> 1160 help
>> 1161 The options selects support for the NEC VR4100 series of processors.
>> 1162 Only choose this option if you have one of these processors as a
>> 1163 kernel built with this option will not run on any other type of
>> 1164 processor or vice versa.
>> 1165
>> 1166 config CPU_R4300
>> 1167 bool "R4300"
>> 1168 depends on SYS_HAS_CPU_R4300
>> 1169 select CPU_SUPPORTS_32BIT_KERNEL
>> 1170 select CPU_SUPPORTS_64BIT_KERNEL
>> 1171 help
>> 1172 MIPS Technologies R4300-series processors.
>> 1173
>> 1174 config CPU_R4X00
>> 1175 bool "R4x00"
>> 1176 depends on SYS_HAS_CPU_R4X00
>> 1177 select CPU_SUPPORTS_32BIT_KERNEL
>> 1178 select CPU_SUPPORTS_64BIT_KERNEL
>> 1179 help
>> 1180 MIPS Technologies R4000-series processors other than 4300, including
>> 1181 the R4000, R4400, R4600, and 4700.
>> 1182
>> 1183 config CPU_TX49XX
>> 1184 bool "R49XX"
>> 1185 depends on SYS_HAS_CPU_TX49XX
>> 1186 select CPU_HAS_PREFETCH
>> 1187 select CPU_SUPPORTS_32BIT_KERNEL
>> 1188 select CPU_SUPPORTS_64BIT_KERNEL
>> 1189
>> 1190 config CPU_R5000
>> 1191 bool "R5000"
>> 1192 depends on SYS_HAS_CPU_R5000
>> 1193 select CPU_SUPPORTS_32BIT_KERNEL
>> 1194 select CPU_SUPPORTS_64BIT_KERNEL
>> 1195 help
>> 1196 MIPS Technologies R5000-series processors other than the Nevada.
>> 1197
>> 1198 config CPU_R5432
>> 1199 bool "R5432"
>> 1200 depends on SYS_HAS_CPU_R5432
>> 1201 select CPU_SUPPORTS_32BIT_KERNEL
>> 1202 select CPU_SUPPORTS_64BIT_KERNEL
>> 1203
>> 1204 config CPU_R5500
>> 1205 bool "R5500"
>> 1206 depends on SYS_HAS_CPU_R5500
>> 1207 select CPU_SUPPORTS_32BIT_KERNEL
>> 1208 select CPU_SUPPORTS_64BIT_KERNEL
>> 1209 select CPU_SUPPORTS_HUGEPAGES
>> 1210 help
>> 1211 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
>> 1212 instruction set.
>> 1213
>> 1214 config CPU_R6000
>> 1215 bool "R6000"
>> 1216 depends on EXPERIMENTAL
>> 1217 depends on SYS_HAS_CPU_R6000
>> 1218 select CPU_SUPPORTS_32BIT_KERNEL
>> 1219 help
>> 1220 MIPS Technologies R6000 and R6000A series processors. Note these
>> 1221 processors are extremely rare and the support for them is incomplete.
>> 1222
>> 1223 config CPU_NEVADA
>> 1224 bool "RM52xx"
>> 1225 depends on SYS_HAS_CPU_NEVADA
>> 1226 select CPU_SUPPORTS_32BIT_KERNEL
>> 1227 select CPU_SUPPORTS_64BIT_KERNEL
>> 1228 help
>> 1229 QED / PMC-Sierra RM52xx-series ("Nevada") processors.
>> 1230
>> 1231 config CPU_R8000
>> 1232 bool "R8000"
>> 1233 depends on EXPERIMENTAL
>> 1234 depends on SYS_HAS_CPU_R8000
>> 1235 select CPU_HAS_PREFETCH
>> 1236 select CPU_SUPPORTS_64BIT_KERNEL
>> 1237 help
>> 1238 MIPS Technologies R8000 processors. Note these processors are
>> 1239 uncommon and the support for them is incomplete.
>> 1240
>> 1241 config CPU_R10000
>> 1242 bool "R10000"
>> 1243 depends on SYS_HAS_CPU_R10000
>> 1244 select CPU_HAS_PREFETCH
>> 1245 select CPU_SUPPORTS_32BIT_KERNEL
>> 1246 select CPU_SUPPORTS_64BIT_KERNEL
>> 1247 select CPU_SUPPORTS_HIGHMEM
>> 1248 help
>> 1249 MIPS Technologies R10000-series processors.
>> 1250
>> 1251 config CPU_RM7000
>> 1252 bool "RM7000"
>> 1253 depends on SYS_HAS_CPU_RM7000
>> 1254 select CPU_HAS_PREFETCH
>> 1255 select CPU_SUPPORTS_32BIT_KERNEL
>> 1256 select CPU_SUPPORTS_64BIT_KERNEL
>> 1257 select CPU_SUPPORTS_HIGHMEM
>> 1258
>> 1259 config CPU_RM9000
>> 1260 bool "RM9000"
>> 1261 depends on SYS_HAS_CPU_RM9000
>> 1262 select CPU_HAS_PREFETCH
>> 1263 select CPU_SUPPORTS_32BIT_KERNEL
>> 1264 select CPU_SUPPORTS_64BIT_KERNEL
>> 1265 select CPU_SUPPORTS_HIGHMEM
>> 1266 select WEAK_ORDERING
>> 1267
>> 1268 config CPU_SB1
>> 1269 bool "SB1"
>> 1270 depends on SYS_HAS_CPU_SB1
>> 1271 select CPU_SUPPORTS_32BIT_KERNEL
>> 1272 select CPU_SUPPORTS_64BIT_KERNEL
>> 1273 select CPU_SUPPORTS_HIGHMEM
>> 1274 select WEAK_ORDERING
>> 1275
>> 1276 config CPU_CAVIUM_OCTEON
>> 1277 bool "Cavium Octeon processor"
>> 1278 depends on SYS_HAS_CPU_CAVIUM_OCTEON
>> 1279 select IRQ_CPU
>> 1280 select IRQ_CPU_OCTEON
>> 1281 select CPU_HAS_PREFETCH
>> 1282 select CPU_SUPPORTS_64BIT_KERNEL
>> 1283 select SYS_SUPPORTS_SMP
>> 1284 select NR_CPUS_DEFAULT_16
>> 1285 select WEAK_ORDERING
>> 1286 select WEAK_REORDERING_BEYOND_LLSC
>> 1287 select CPU_SUPPORTS_HIGHMEM
>> 1288 select CPU_SUPPORTS_HUGEPAGES
96 help 1289 help
97 On some platforms, there is currentl !! 1290 The Cavium Octeon processor is a highly integrated chip containing
98 to pass arguments to the kernel. For !! 1291 many ethernet hardware widgets for networking tasks. The processor
99 command-line options at build time b !! 1292 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
100 minimum, you should specify the memo !! 1293 Full details can be found at http://www.caviumnetworks.com.
101 (e.g., mem=64M root=/dev/nfs). !! 1294
>> 1295 endchoice
>> 1296
>> 1297 config CPU_LOONGSON2
>> 1298 bool
>> 1299 select CPU_SUPPORTS_32BIT_KERNEL
>> 1300 select CPU_SUPPORTS_64BIT_KERNEL
>> 1301 select CPU_SUPPORTS_HIGHMEM
>> 1302
>> 1303 config SYS_HAS_CPU_LOONGSON2E
>> 1304 bool
>> 1305
>> 1306 config SYS_HAS_CPU_MIPS32_R1
>> 1307 bool
>> 1308
>> 1309 config SYS_HAS_CPU_MIPS32_R2
>> 1310 bool
>> 1311
>> 1312 config SYS_HAS_CPU_MIPS64_R1
>> 1313 bool
>> 1314
>> 1315 config SYS_HAS_CPU_MIPS64_R2
>> 1316 bool
>> 1317
>> 1318 config SYS_HAS_CPU_R3000
>> 1319 bool
>> 1320
>> 1321 config SYS_HAS_CPU_TX39XX
>> 1322 bool
>> 1323
>> 1324 config SYS_HAS_CPU_VR41XX
>> 1325 bool
>> 1326
>> 1327 config SYS_HAS_CPU_R4300
>> 1328 bool
>> 1329
>> 1330 config SYS_HAS_CPU_R4X00
>> 1331 bool
>> 1332
>> 1333 config SYS_HAS_CPU_TX49XX
>> 1334 bool
>> 1335
>> 1336 config SYS_HAS_CPU_R5000
>> 1337 bool
>> 1338
>> 1339 config SYS_HAS_CPU_R5432
>> 1340 bool
>> 1341
>> 1342 config SYS_HAS_CPU_R5500
>> 1343 bool
>> 1344
>> 1345 config SYS_HAS_CPU_R6000
>> 1346 bool
>> 1347
>> 1348 config SYS_HAS_CPU_NEVADA
>> 1349 bool
>> 1350
>> 1351 config SYS_HAS_CPU_R8000
>> 1352 bool
>> 1353
>> 1354 config SYS_HAS_CPU_R10000
>> 1355 bool
>> 1356
>> 1357 config SYS_HAS_CPU_RM7000
>> 1358 bool
>> 1359
>> 1360 config SYS_HAS_CPU_RM9000
>> 1361 bool
>> 1362
>> 1363 config SYS_HAS_CPU_SB1
>> 1364 bool
>> 1365
>> 1366 config SYS_HAS_CPU_CAVIUM_OCTEON
>> 1367 bool
>> 1368
>> 1369 #
>> 1370 # CPU may reorder R->R, R->W, W->R, W->W
>> 1371 # Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
>> 1372 #
>> 1373 config WEAK_ORDERING
>> 1374 bool
>> 1375
>> 1376 #
>> 1377 # CPU may reorder reads and writes beyond LL/SC
>> 1378 # CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
>> 1379 #
>> 1380 config WEAK_REORDERING_BEYOND_LLSC
>> 1381 bool
>> 1382 endmenu
>> 1383
>> 1384 #
>> 1385 # These two indicate any level of the MIPS32 and MIPS64 architecture
>> 1386 #
>> 1387 config CPU_MIPS32
>> 1388 bool
>> 1389 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
>> 1390
>> 1391 config CPU_MIPS64
>> 1392 bool
>> 1393 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
>> 1394
>> 1395 #
>> 1396 # These two indicate the revision of the architecture, either Release 1 or Release 2
>> 1397 #
>> 1398 config CPU_MIPSR1
>> 1399 bool
>> 1400 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
>> 1401
>> 1402 config CPU_MIPSR2
>> 1403 bool
>> 1404 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
>> 1405
>> 1406 config SYS_SUPPORTS_32BIT_KERNEL
>> 1407 bool
>> 1408 config SYS_SUPPORTS_64BIT_KERNEL
>> 1409 bool
>> 1410 config CPU_SUPPORTS_32BIT_KERNEL
>> 1411 bool
>> 1412 config CPU_SUPPORTS_64BIT_KERNEL
>> 1413 bool
>> 1414 config CPU_SUPPORTS_HUGEPAGES
>> 1415 bool
>> 1416
>> 1417 #
>> 1418 # Set to y for ptrace access to watch registers.
>> 1419 #
>> 1420 config HARDWARE_WATCHPOINTS
>> 1421 bool
>> 1422 default y if CPU_MIPSR1 || CPU_MIPSR2
>> 1423
>> 1424 menu "Kernel type"
>> 1425
>> 1426 choice
>> 1427
>> 1428 prompt "Kernel code model"
>> 1429 help
>> 1430 You should only select this option if you have a workload that
>> 1431 actually benefits from 64-bit processing or if your machine has
>> 1432 large memory. You will only be presented a single option in this
>> 1433 menu if your system does not support both 32-bit and 64-bit kernels.
>> 1434
>> 1435 config 32BIT
>> 1436 bool "32-bit kernel"
>> 1437 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
>> 1438 select TRAD_SIGNALS
>> 1439 help
>> 1440 Select this option if you want to build a 32-bit kernel.
>> 1441 config 64BIT
>> 1442 bool "64-bit kernel"
>> 1443 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
>> 1444 select HAVE_SYSCALL_WRAPPERS
>> 1445 help
>> 1446 Select this option if you want to build a 64-bit kernel.
>> 1447
>> 1448 endchoice
>> 1449
>> 1450 choice
>> 1451 prompt "Kernel page size"
>> 1452 default PAGE_SIZE_4KB
>> 1453
>> 1454 config PAGE_SIZE_4KB
>> 1455 bool "4kB"
>> 1456 depends on !CPU_LOONGSON2
>> 1457 help
>> 1458 This option select the standard 4kB Linux page size. On some
>> 1459 R3000-family processors this is the only available page size. Using
>> 1460 4kB page size will minimize memory consumption and is therefore
>> 1461 recommended for low memory systems.
>> 1462
>> 1463 config PAGE_SIZE_8KB
>> 1464 bool "8kB"
>> 1465 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
>> 1466 help
>> 1467 Using 8kB page size will result in higher performance kernel at
>> 1468 the price of higher memory consumption. This option is available
>> 1469 only on R8000 and cnMIPS processors. Note that you will need a
>> 1470 suitable Linux distribution to support this.
>> 1471
>> 1472 config PAGE_SIZE_16KB
>> 1473 bool "16kB"
>> 1474 depends on !CPU_R3000 && !CPU_TX39XX
>> 1475 help
>> 1476 Using 16kB page size will result in higher performance kernel at
>> 1477 the price of higher memory consumption. This option is available on
>> 1478 all non-R3000 family processors. Note that you will need a suitable
>> 1479 Linux distribution to support this.
>> 1480
>> 1481 config PAGE_SIZE_32KB
>> 1482 bool "32kB"
>> 1483 depends on CPU_CAVIUM_OCTEON
>> 1484 help
>> 1485 Using 32kB page size will result in higher performance kernel at
>> 1486 the price of higher memory consumption. This option is available
>> 1487 only on cnMIPS cores. Note that you will need a suitable Linux
>> 1488 distribution to support this.
>> 1489
>> 1490 config PAGE_SIZE_64KB
>> 1491 bool "64kB"
>> 1492 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
>> 1493 help
>> 1494 Using 64kB page size will result in higher performance kernel at
>> 1495 the price of higher memory consumption. This option is available on
>> 1496 all non-R3000 family processor. Not that at the time of this
>> 1497 writing this option is still high experimental.
>> 1498
>> 1499 endchoice
>> 1500
>> 1501 config BOARD_SCACHE
>> 1502 bool
>> 1503
>> 1504 config IP22_CPU_SCACHE
>> 1505 bool
>> 1506 select BOARD_SCACHE
>> 1507
>> 1508 #
>> 1509 # Support for a MIPS32 / MIPS64 style S-caches
>> 1510 #
>> 1511 config MIPS_CPU_SCACHE
>> 1512 bool
>> 1513 select BOARD_SCACHE
>> 1514
>> 1515 config R5000_CPU_SCACHE
>> 1516 bool
>> 1517 select BOARD_SCACHE
>> 1518
>> 1519 config RM7000_CPU_SCACHE
>> 1520 bool
>> 1521 select BOARD_SCACHE
>> 1522
>> 1523 config SIBYTE_DMA_PAGEOPS
>> 1524 bool "Use DMA to clear/copy pages"
>> 1525 depends on CPU_SB1
>> 1526 help
>> 1527 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 1528 channel. These DMA channels are otherwise unused by the standard
>> 1529 SiByte Linux port. Seems to give a small performance benefit.
>> 1530
>> 1531 config CPU_HAS_PREFETCH
>> 1532 bool
>> 1533
>> 1534 choice
>> 1535 prompt "MIPS MT options"
>> 1536
>> 1537 config MIPS_MT_DISABLED
>> 1538 bool "Disable multithreading support."
>> 1539 help
>> 1540 Use this option if your workload can't take advantage of
>> 1541 MIPS hardware multithreading support. On systems that don't have
>> 1542 the option of an MT-enabled processor this option will be the only
>> 1543 option in this menu.
>> 1544
>> 1545 config MIPS_MT_SMP
>> 1546 bool "Use 1 TC on each available VPE for SMP"
>> 1547 depends on SYS_SUPPORTS_MULTITHREADING
>> 1548 select CPU_MIPSR2_IRQ_VI
>> 1549 select CPU_MIPSR2_IRQ_EI
>> 1550 select MIPS_MT
>> 1551 select NR_CPUS_DEFAULT_2
>> 1552 select SMP
>> 1553 select SYS_SUPPORTS_SCHED_SMT if SMP
>> 1554 select SYS_SUPPORTS_SMP
>> 1555 select SMP_UP
>> 1556 help
>> 1557 This is a kernel model which is also known a VSMP or lately
>> 1558 has been marketesed into SMVP.
>> 1559
>> 1560 config MIPS_MT_SMTC
>> 1561 bool "SMTC: Use all TCs on all VPEs for SMP"
>> 1562 depends on CPU_MIPS32_R2
>> 1563 #depends on CPU_MIPS64_R2 # once there is hardware ...
>> 1564 depends on SYS_SUPPORTS_MULTITHREADING
>> 1565 select CPU_MIPSR2_IRQ_VI
>> 1566 select CPU_MIPSR2_IRQ_EI
>> 1567 select MIPS_MT
>> 1568 select NR_CPUS_DEFAULT_8
>> 1569 select SMP
>> 1570 select SYS_SUPPORTS_SMP
>> 1571 select SMP_UP
>> 1572 help
>> 1573 This is a kernel model which is known a SMTC or lately has been
>> 1574 marketesed into SMVP.
>> 1575
>> 1576 endchoice
>> 1577
>> 1578 config MIPS_MT
>> 1579 bool
>> 1580
>> 1581 config SCHED_SMT
>> 1582 bool "SMT (multithreading) scheduler support"
>> 1583 depends on SYS_SUPPORTS_SCHED_SMT
>> 1584 default n
>> 1585 help
>> 1586 SMT scheduler support improves the CPU scheduler's decision making
>> 1587 when dealing with MIPS MT enabled cores at a cost of slightly
>> 1588 increased overhead in some places. If unsure say N here.
>> 1589
>> 1590 config SYS_SUPPORTS_SCHED_SMT
>> 1591 bool
>> 1592
>> 1593
>> 1594 config SYS_SUPPORTS_MULTITHREADING
>> 1595 bool
>> 1596
>> 1597 config MIPS_MT_FPAFF
>> 1598 bool "Dynamic FPU affinity for FP-intensive threads"
>> 1599 default y
>> 1600 depends on MIPS_MT_SMP || MIPS_MT_SMTC
>> 1601
>> 1602 config MIPS_VPE_LOADER
>> 1603 bool "VPE loader support."
>> 1604 depends on SYS_SUPPORTS_MULTITHREADING
>> 1605 select CPU_MIPSR2_IRQ_VI
>> 1606 select CPU_MIPSR2_IRQ_EI
>> 1607 select MIPS_MT
>> 1608 help
>> 1609 Includes a loader for loading an elf relocatable object
>> 1610 onto another VPE and running it.
>> 1611
>> 1612 config MIPS_MT_SMTC_IM_BACKSTOP
>> 1613 bool "Use per-TC register bits as backstop for inhibited IM bits"
>> 1614 depends on MIPS_MT_SMTC
>> 1615 default n
>> 1616 help
>> 1617 To support multiple TC microthreads acting as "CPUs" within
>> 1618 a VPE, VPE-wide interrupt mask bits must be specially manipulated
>> 1619 during interrupt handling. To support legacy drivers and interrupt
>> 1620 controller management code, SMTC has a "backstop" to track and
>> 1621 if necessary restore the interrupt mask. This has some performance
>> 1622 impact on interrupt service overhead.
>> 1623
>> 1624 config MIPS_MT_SMTC_IRQAFF
>> 1625 bool "Support IRQ affinity API"
>> 1626 depends on MIPS_MT_SMTC
>> 1627 default n
>> 1628 help
>> 1629 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
>> 1630 for SMTC Linux kernel. Requires platform support, of which
>> 1631 an example can be found in the MIPS kernel i8259 and Malta
>> 1632 platform code. Adds some overhead to interrupt dispatch, and
>> 1633 should be used only if you know what you are doing.
>> 1634
>> 1635 config MIPS_VPE_LOADER_TOM
>> 1636 bool "Load VPE program into memory hidden from linux"
>> 1637 depends on MIPS_VPE_LOADER
>> 1638 default y
>> 1639 help
>> 1640 The loader can use memory that is present but has been hidden from
>> 1641 Linux using the kernel command line option "mem=xxMB". It's up to
>> 1642 you to ensure the amount you put in the option and the space your
>> 1643 program requires is less or equal to the amount physically present.
>> 1644
>> 1645 # this should possibly be in drivers/char, but it is rather cpu related. Hmmm
>> 1646 config MIPS_VPE_APSP_API
>> 1647 bool "Enable support for AP/SP API (RTLX)"
>> 1648 depends on MIPS_VPE_LOADER
>> 1649 help
>> 1650
>> 1651 config MIPS_APSP_KSPD
>> 1652 bool "Enable KSPD"
>> 1653 depends on MIPS_VPE_APSP_API
>> 1654 default y
>> 1655 help
>> 1656 KSPD is a kernel daemon that accepts syscall requests from the SP
>> 1657 side, actions them and returns the results. It also handles the
>> 1658 "exit" syscall notifying other kernel modules the SP program is
>> 1659 exiting. You probably want to say yes here.
>> 1660
>> 1661 config MIPS_CMP
>> 1662 bool "MIPS CMP framework support"
>> 1663 depends on SYS_SUPPORTS_MIPS_CMP
>> 1664 select SYNC_R4K
>> 1665 select SYS_SUPPORTS_SMP
>> 1666 select SYS_SUPPORTS_SCHED_SMT if SMP
>> 1667 select WEAK_ORDERING
>> 1668 default n
>> 1669 help
>> 1670 This is a placeholder option for the GCMP work. It will need to
>> 1671 be handled differently...
>> 1672
>> 1673 config SB1_PASS_1_WORKAROUNDS
>> 1674 bool
>> 1675 depends on CPU_SB1_PASS_1
>> 1676 default y
>> 1677
>> 1678 config SB1_PASS_2_WORKAROUNDS
>> 1679 bool
>> 1680 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
>> 1681 default y
>> 1682
>> 1683 config SB1_PASS_2_1_WORKAROUNDS
>> 1684 bool
>> 1685 depends on CPU_SB1 && CPU_SB1_PASS_2
>> 1686 default y
>> 1687
>> 1688 config 64BIT_PHYS_ADDR
>> 1689 bool
>> 1690
>> 1691 config CPU_HAS_SMARTMIPS
>> 1692 depends on SYS_SUPPORTS_SMARTMIPS
>> 1693 bool "Support for the SmartMIPS ASE"
>> 1694 help
>> 1695 SmartMIPS is a extension of the MIPS32 architecture aimed at
>> 1696 increased security at both hardware and software level for
>> 1697 smartcards. Enabling this option will allow proper use of the
>> 1698 SmartMIPS instructions by Linux applications. However a kernel with
>> 1699 this option will not work on a MIPS core without SmartMIPS core. If
>> 1700 you don't know you probably don't have SmartMIPS and should say N
>> 1701 here.
>> 1702
>> 1703 config CPU_HAS_WB
>> 1704 bool
>> 1705
>> 1706 #
>> 1707 # Vectored interrupt mode is an R2 feature
>> 1708 #
>> 1709 config CPU_MIPSR2_IRQ_VI
>> 1710 bool
>> 1711
>> 1712 #
>> 1713 # Extended interrupt mode is an R2 feature
>> 1714 #
>> 1715 config CPU_MIPSR2_IRQ_EI
>> 1716 bool
>> 1717
>> 1718 config CPU_HAS_SYNC
>> 1719 bool
>> 1720 depends on !CPU_R3000
>> 1721 default y
>> 1722
>> 1723 config GENERIC_CLOCKEVENTS_BROADCAST
>> 1724 bool
>> 1725
>> 1726 #
>> 1727 # CPU non-features
>> 1728 #
>> 1729 config CPU_DADDI_WORKAROUNDS
>> 1730 bool
>> 1731
>> 1732 config CPU_R4000_WORKAROUNDS
>> 1733 bool
>> 1734 select CPU_R4400_WORKAROUNDS
>> 1735
>> 1736 config CPU_R4400_WORKAROUNDS
>> 1737 bool
>> 1738
>> 1739 #
>> 1740 # Use the generic interrupt handling code in kernel/irq/:
>> 1741 #
>> 1742 config GENERIC_HARDIRQS
>> 1743 bool
>> 1744 default y
>> 1745
>> 1746 config GENERIC_IRQ_PROBE
>> 1747 bool
>> 1748 default y
>> 1749
>> 1750 config IRQ_PER_CPU
>> 1751 bool
>> 1752
>> 1753 #
>> 1754 # - Highmem only makes sense for the 32-bit kernel.
>> 1755 # - The current highmem code will only work properly on physically indexed
>> 1756 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 1757 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 1758 # moment we protect the user and offer the highmem option only on machines
>> 1759 # where it's known to be safe. This will not offer highmem on a few systems
>> 1760 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 1761 # indexed CPUs but we're playing safe.
>> 1762 # - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
>> 1763 # know they might have memory configurations that could make use of highmem
>> 1764 # support.
>> 1765 #
>> 1766 config HIGHMEM
>> 1767 bool "High Memory Support"
>> 1768 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
>> 1769
>> 1770 config CPU_SUPPORTS_HIGHMEM
>> 1771 bool
>> 1772
>> 1773 config SYS_SUPPORTS_HIGHMEM
>> 1774 bool
>> 1775
>> 1776 config SYS_SUPPORTS_SMARTMIPS
>> 1777 bool
>> 1778
>> 1779 config ARCH_FLATMEM_ENABLE
>> 1780 def_bool y
>> 1781 depends on !NUMA && !CPU_LOONGSON2
>> 1782
>> 1783 config ARCH_DISCONTIGMEM_ENABLE
>> 1784 bool
>> 1785 default y if SGI_IP27
>> 1786 help
>> 1787 Say Y to support efficient handling of discontiguous physical memory,
>> 1788 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 1789 or have huge holes in the physical address space for other reasons.
>> 1790 See <file:Documentation/vm/numa> for more.
>> 1791
>> 1792 config ARCH_POPULATES_NODE_MAP
>> 1793 def_bool y
>> 1794
>> 1795 config ARCH_SPARSEMEM_ENABLE
>> 1796 bool
>> 1797 select SPARSEMEM_STATIC
>> 1798
>> 1799 config NUMA
>> 1800 bool "NUMA Support"
>> 1801 depends on SYS_SUPPORTS_NUMA
>> 1802 help
>> 1803 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 1804 Access). This option improves performance on systems with more
>> 1805 than two nodes; on two node systems it is generally better to
>> 1806 leave it disabled; on single node systems disable this option
>> 1807 disabled.
>> 1808
>> 1809 config SYS_SUPPORTS_NUMA
>> 1810 bool
>> 1811
>> 1812 config NODES_SHIFT
>> 1813 int
>> 1814 default "6"
>> 1815 depends on NEED_MULTIPLE_NODES
>> 1816
>> 1817 source "mm/Kconfig"
102 1818
103 config SMP 1819 config SMP
104 bool "Multi-Processing support" 1820 bool "Multi-Processing support"
>> 1821 depends on SYS_SUPPORTS_SMP
>> 1822 select IRQ_PER_CPU
>> 1823 select USE_GENERIC_SMP_HELPERS
105 help 1824 help
106 Enables SMP support in the kernel. !! 1825 This enables support for systems with more than one CPU. If you have
>> 1826 a system with only one CPU, like most personal computers, say N. If
>> 1827 you have a system with more than one CPU, say Y.
>> 1828
>> 1829 If you say N here, the kernel will run on single and multiprocessor
>> 1830 machines, but will use only one CPU of a multiprocessor machine. If
>> 1831 you say Y here, the kernel will run on many, but not all,
>> 1832 singleprocessor machines. On a singleprocessor machine, the kernel
>> 1833 will run faster if you say N here.
>> 1834
>> 1835 People using multiprocessor machines who say Y here should also say
>> 1836 Y to "Enhanced Real Time Clock Support", below.
>> 1837
>> 1838 See also the SMP-HOWTO available at
>> 1839 <http://www.tldp.org/docs.html#howto>.
>> 1840
>> 1841 If you don't know what to do here, say N.
>> 1842
>> 1843 config SMP_UP
>> 1844 bool
>> 1845
>> 1846 config SYS_SUPPORTS_MIPS_CMP
>> 1847 bool
>> 1848
>> 1849 config SYS_SUPPORTS_SMP
>> 1850 bool
>> 1851
>> 1852 config NR_CPUS_DEFAULT_1
>> 1853 bool
>> 1854
>> 1855 config NR_CPUS_DEFAULT_2
>> 1856 bool
>> 1857
>> 1858 config NR_CPUS_DEFAULT_4
>> 1859 bool
>> 1860
>> 1861 config NR_CPUS_DEFAULT_8
>> 1862 bool
>> 1863
>> 1864 config NR_CPUS_DEFAULT_16
>> 1865 bool
>> 1866
>> 1867 config NR_CPUS_DEFAULT_32
>> 1868 bool
>> 1869
>> 1870 config NR_CPUS_DEFAULT_64
>> 1871 bool
107 1872
108 config NR_CPUS 1873 config NR_CPUS
109 int "Maximum number of CPUs" if SMP !! 1874 int "Maximum number of CPUs (2-64)"
110 range 2 6 if SMP !! 1875 range 1 64 if NR_CPUS_DEFAULT_1
111 default "1" if !SMP !! 1876 depends on SMP
112 default "6" if SMP !! 1877 default "1" if NR_CPUS_DEFAULT_1
>> 1878 default "2" if NR_CPUS_DEFAULT_2
>> 1879 default "4" if NR_CPUS_DEFAULT_4
>> 1880 default "8" if NR_CPUS_DEFAULT_8
>> 1881 default "16" if NR_CPUS_DEFAULT_16
>> 1882 default "32" if NR_CPUS_DEFAULT_32
>> 1883 default "64" if NR_CPUS_DEFAULT_64
113 help 1884 help
114 This allows you to specify the maxim 1885 This allows you to specify the maximum number of CPUs which this
115 kernel will support. The maximum su !! 1886 kernel will support. The maximum supported value is 32 for 32-bit
116 minimum value which makes sense is 2 !! 1887 kernel and 64 for 64-bit kernels; the minimum value which makes
>> 1888 sense is 1 for Qemu (useful only for kernel debugging purposes)
>> 1889 and 2 for all others.
117 1890
118 This is purely to save memory - each 1891 This is purely to save memory - each supported CPU adds
119 approximately eight kilobytes to the !! 1892 approximately eight kilobytes to the kernel image. For best
>> 1893 performance should round up your number of processors to the next
>> 1894 power of two.
>> 1895
>> 1896 source "kernel/time/Kconfig"
>> 1897
>> 1898 #
>> 1899 # Timer Interrupt Frequency Configuration
>> 1900 #
>> 1901
>> 1902 choice
>> 1903 prompt "Timer frequency"
>> 1904 default HZ_250
>> 1905 help
>> 1906 Allows the configuration of the timer frequency.
>> 1907
>> 1908 config HZ_48
>> 1909 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1910
>> 1911 config HZ_100
>> 1912 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1913
>> 1914 config HZ_128
>> 1915 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1916
>> 1917 config HZ_250
>> 1918 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1919
>> 1920 config HZ_256
>> 1921 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1922
>> 1923 config HZ_1000
>> 1924 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1925
>> 1926 config HZ_1024
>> 1927 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
>> 1928
>> 1929 endchoice
>> 1930
>> 1931 config SYS_SUPPORTS_48HZ
>> 1932 bool
>> 1933
>> 1934 config SYS_SUPPORTS_100HZ
>> 1935 bool
>> 1936
>> 1937 config SYS_SUPPORTS_128HZ
>> 1938 bool
>> 1939
>> 1940 config SYS_SUPPORTS_250HZ
>> 1941 bool
>> 1942
>> 1943 config SYS_SUPPORTS_256HZ
>> 1944 bool
>> 1945
>> 1946 config SYS_SUPPORTS_1000HZ
>> 1947 bool
>> 1948
>> 1949 config SYS_SUPPORTS_1024HZ
>> 1950 bool
>> 1951
>> 1952 config SYS_SUPPORTS_ARBIT_HZ
>> 1953 bool
>> 1954 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
>> 1955 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
>> 1956 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
>> 1957 !SYS_SUPPORTS_1024HZ
>> 1958
>> 1959 config HZ
>> 1960 int
>> 1961 default 48 if HZ_48
>> 1962 default 100 if HZ_100
>> 1963 default 128 if HZ_128
>> 1964 default 250 if HZ_250
>> 1965 default 256 if HZ_256
>> 1966 default 1000 if HZ_1000
>> 1967 default 1024 if HZ_1024
>> 1968
>> 1969 source "kernel/Kconfig.preempt"
>> 1970
>> 1971 config MIPS_INSANE_LARGE
>> 1972 bool "Support for large 64-bit configurations"
>> 1973 depends on CPU_R10000 && 64BIT
>> 1974 help
>> 1975 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
>> 1976 previous 64-bit processors which only supported 40 bit / 1TB. If you
>> 1977 need processes of more than 1TB virtual address space, say Y here.
>> 1978 This will result in additional memory usage, so it is not
>> 1979 recommended for normal users.
>> 1980
>> 1981 config KEXEC
>> 1982 bool "Kexec system call (EXPERIMENTAL)"
>> 1983 depends on EXPERIMENTAL
>> 1984 help
>> 1985 kexec is a system call that implements the ability to shutdown your
>> 1986 current kernel, and to start another kernel. It is like a reboot
>> 1987 but it is independent of the system firmware. And like a reboot
>> 1988 you can start any kernel with it, not just Linux.
>> 1989
>> 1990 The name comes from the similarity to the exec system call.
>> 1991
>> 1992 It is an ongoing process to be certain the hardware in a machine
>> 1993 is properly shutdown, so do not be surprised if this code does not
>> 1994 initially work for you. It may help to enable device hotplugging
>> 1995 support. As of this writing the exact hardware interface is
>> 1996 strongly in flux, so no good recommendation can be made.
>> 1997
>> 1998 config SECCOMP
>> 1999 bool "Enable seccomp to safely compute untrusted bytecode"
>> 2000 depends on PROC_FS
>> 2001 default y
>> 2002 help
>> 2003 This kernel feature is useful for number crunching applications
>> 2004 that may need to compute untrusted bytecode during their
>> 2005 execution. By using pipes or other transports made available to
>> 2006 the process as file descriptors supporting the read/write
>> 2007 syscalls, it's possible to isolate those applications in
>> 2008 their own address space using seccomp. Once seccomp is
>> 2009 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 2010 and the task is only allowed to execute a few safe syscalls
>> 2011 defined by each seccomp mode.
>> 2012
>> 2013 If unsure, say Y. Only embedded should say N here.
>> 2014
>> 2015 endmenu
>> 2016
>> 2017 config LOCKDEP_SUPPORT
>> 2018 bool
>> 2019 default y
>> 2020
>> 2021 config STACKTRACE_SUPPORT
>> 2022 bool
>> 2023 default y
>> 2024
>> 2025 source "init/Kconfig"
>> 2026
>> 2027 config PROBE_INITRD_HEADER
>> 2028 bool "Probe initrd header created by addinitrd"
>> 2029 depends on BLK_DEV_INITRD
>> 2030 help
>> 2031 Probe initrd header at the last page of kernel image.
>> 2032 Say Y here if you are using arch/mips/boot/addinitrd.c to
>> 2033 add initrd or initramfs image to the kernel image.
>> 2034 Otherwise, say N.
>> 2035
>> 2036 source "kernel/Kconfig.freezer"
>> 2037
>> 2038 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 2039
>> 2040 config HW_HAS_EISA
>> 2041 bool
>> 2042 config HW_HAS_PCI
>> 2043 bool
>> 2044
>> 2045 config PCI
>> 2046 bool "Support for PCI controller"
>> 2047 depends on HW_HAS_PCI
>> 2048 select PCI_DOMAINS
>> 2049 help
>> 2050 Find out whether you have a PCI motherboard. PCI is the name of a
>> 2051 bus system, i.e. the way the CPU talks to the other stuff inside
>> 2052 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
>> 2053 say Y, otherwise N.
>> 2054
>> 2055 config PCI_DOMAINS
>> 2056 bool
>> 2057
>> 2058 source "drivers/pci/Kconfig"
>> 2059
>> 2060 #
>> 2061 # ISA support is now enabled via select. Too many systems still have the one
>> 2062 # or other ISA chip on the board that users don't know about so don't expect
>> 2063 # users to choose the right thing ...
>> 2064 #
>> 2065 config ISA
>> 2066 bool
>> 2067
>> 2068 config EISA
>> 2069 bool "EISA support"
>> 2070 depends on HW_HAS_EISA
>> 2071 select ISA
>> 2072 select GENERIC_ISA_DMA
>> 2073 ---help---
>> 2074 The Extended Industry Standard Architecture (EISA) bus was
>> 2075 developed as an open alternative to the IBM MicroChannel bus.
>> 2076
>> 2077 The EISA bus provided some of the features of the IBM MicroChannel
>> 2078 bus while maintaining backward compatibility with cards made for
>> 2079 the older ISA bus. The EISA bus saw limited use between 1988 and
>> 2080 1995 when it was made obsolete by the PCI bus.
>> 2081
>> 2082 Say Y here if you are building a kernel for an EISA-based machine.
>> 2083
>> 2084 Otherwise, say N.
>> 2085
>> 2086 source "drivers/eisa/Kconfig"
>> 2087
>> 2088 config TC
>> 2089 bool "TURBOchannel support"
>> 2090 depends on MACH_DECSTATION
>> 2091 help
>> 2092 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 2093 processors. Documentation on writing device drivers for TurboChannel
>> 2094 is available at:
>> 2095 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
>> 2096
>> 2097 #config ACCESSBUS
>> 2098 # bool "Access.Bus support"
>> 2099 # depends on TC
>> 2100
>> 2101 config MMU
>> 2102 bool
>> 2103 default y
>> 2104
>> 2105 config I8253
>> 2106 bool
>> 2107
>> 2108 config ZONE_DMA32
>> 2109 bool
>> 2110
>> 2111 source "drivers/pcmcia/Kconfig"
>> 2112
>> 2113 source "drivers/pci/hotplug/Kconfig"
>> 2114
>> 2115 endmenu
120 2116
121 source "kernel/Kconfig.hz" !! 2117 menu "Executable file formats"
>> 2118
>> 2119 source "fs/Kconfig.binfmt"
>> 2120
>> 2121 config TRAD_SIGNALS
>> 2122 bool
>> 2123
>> 2124 config MIPS32_COMPAT
>> 2125 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
>> 2126 depends on 64BIT
>> 2127 help
>> 2128 Select this option if you want Linux/MIPS 32-bit binary
>> 2129 compatibility. Since all software available for Linux/MIPS is
>> 2130 currently 32-bit you should say Y here.
>> 2131
>> 2132 config COMPAT
>> 2133 bool
>> 2134 depends on MIPS32_COMPAT
>> 2135 default y
>> 2136
>> 2137 config SYSVIPC_COMPAT
>> 2138 bool
>> 2139 depends on COMPAT && SYSVIPC
>> 2140 default y
>> 2141
>> 2142 config MIPS32_O32
>> 2143 bool "Kernel support for o32 binaries"
>> 2144 depends on MIPS32_COMPAT
>> 2145 help
>> 2146 Select this option if you want to run o32 binaries. These are pure
>> 2147 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 2148 existing binaries are in this format.
>> 2149
>> 2150 If unsure, say Y.
>> 2151
>> 2152 config MIPS32_N32
>> 2153 bool "Kernel support for n32 binaries"
>> 2154 depends on MIPS32_COMPAT
>> 2155 help
>> 2156 Select this option if you want to run n32 binaries. These are
>> 2157 64-bit binaries using 32-bit quantities for addressing and certain
>> 2158 data that would normally be 64-bit. They are used in special
>> 2159 cases.
>> 2160
>> 2161 If unsure, say N.
>> 2162
>> 2163 config BINFMT_ELF32
>> 2164 bool
>> 2165 default y if MIPS32_O32 || MIPS32_N32
>> 2166
>> 2167 endmenu
>> 2168
>> 2169 menu "Power management options"
>> 2170
>> 2171 config ARCH_HIBERNATION_POSSIBLE
>> 2172 def_bool y
>> 2173 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
>> 2174
>> 2175 config ARCH_SUSPEND_POSSIBLE
>> 2176 def_bool y
>> 2177 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
>> 2178
>> 2179 source "kernel/power/Kconfig"
122 2180
123 endmenu 2181 endmenu
>> 2182
>> 2183 source "net/Kconfig"
>> 2184
>> 2185 source "drivers/Kconfig"
>> 2186
>> 2187 source "fs/Kconfig"
>> 2188
>> 2189 source "arch/mips/Kconfig.debug"
>> 2190
>> 2191 source "security/Kconfig"
>> 2192
>> 2193 source "crypto/Kconfig"
>> 2194
>> 2195 source "lib/Kconfig"
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