1config ALPHA 2 bool 3 default y 4 select ARCH_MIGHT_HAVE_PC_PARPORT 5 select ARCH_MIGHT_HAVE_PC_SERIO 6 select ARCH_USE_CMPXCHG_LOCKREF 7 select HAVE_AOUT 8 select HAVE_IDE 9 select HAVE_OPROFILE 10 select HAVE_PCSPKR_PLATFORM 11 select HAVE_PERF_EVENTS 12 select HAVE_DMA_ATTRS 13 select VIRT_TO_BUS 14 select GENERIC_IRQ_PROBE 15 select AUTO_IRQ_AFFINITY if SMP 16 select GENERIC_IRQ_SHOW 17 select ARCH_WANT_OPTIONAL_GPIOLIB 18 select ARCH_WANT_IPC_PARSE_VERSION 19 select ARCH_HAVE_NMI_SAFE_CMPXCHG 20 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 21 select AUDIT_ARCH 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_SMP_IDLE_THREAD 24 select GENERIC_STRNCPY_FROM_USER 25 select GENERIC_STRNLEN_USER 26 select HAVE_ARCH_AUDITSYSCALL 27 select HAVE_MOD_ARCH_SPECIFIC 28 select MODULES_USE_ELF_RELA 29 select ODD_RT_SIGACTION 30 select OLD_SIGSUSPEND 31 help 32 The Alpha is a 64-bit general-purpose processor designed and 33 marketed by the Digital Equipment Corporation of blessed memory, 34 now Hewlett-Packard. The Alpha Linux project has a home page at 35 <http://www.alphalinux.org/>. 36 37config 64BIT 38 def_bool y 39 40config MMU 41 bool 42 default y 43 44config RWSEM_GENERIC_SPINLOCK 45 bool 46 47config RWSEM_XCHGADD_ALGORITHM 48 bool 49 default y 50 51config ARCH_HAS_ILOG2_U32 52 bool 53 default n 54 55config ARCH_HAS_ILOG2_U64 56 bool 57 default n 58 59config GENERIC_CALIBRATE_DELAY 60 bool 61 default y 62 63config ZONE_DMA 64 bool 65 default y 66 67config ARCH_DMA_ADDR_T_64BIT 68 def_bool y 69 70config NEED_DMA_MAP_STATE 71 def_bool y 72 73config NEED_SG_DMA_LENGTH 74 def_bool y 75 76config GENERIC_ISA_DMA 77 bool 78 default y 79 80config PGTABLE_LEVELS 81 int 82 default 3 83 84source "init/Kconfig" 85source "kernel/Kconfig.freezer" 86 87config AUDIT_ARCH 88 bool 89 90menu "System setup" 91 92choice 93 prompt "Alpha system type" 94 default ALPHA_GENERIC 95 ---help--- 96 This is the system type of your hardware. A "generic" kernel will 97 run on any supported Alpha system. However, if you configure a 98 kernel for your specific system, it will be faster and smaller. 99 100 To find out what type of Alpha system you have, you may want to 101 check out the Linux/Alpha FAQ, accessible on the WWW from 102 <http://www.alphalinux.org/>. In summary: 103 104 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 105 Alpha-XL XL-233, XL-266 106 AlphaBook1 Alpha laptop 107 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 108 Cabriolet AlphaPC64, AlphaPCI64 109 DP264 DP264 / DS20 / ES40 / DS10 / DS10L 110 EB164 EB164 21164 evaluation board 111 EB64+ EB64+ 21064 evaluation board 112 EB66 EB66 21066 evaluation board 113 EB66+ EB66+ 21066 evaluation board 114 Jensen DECpc 150, DEC 2000 models 300, 500 115 LX164 AlphaPC164-LX 116 Lynx AS 2100A 117 Miata Personal Workstation 433/500/600 a/au 118 Marvel AlphaServer ES47 / ES80 / GS1280 119 Mikasa AS 1000 120 Noname AXPpci33, UDB (Multia) 121 Noritake AS 1000A, AS 600A, AS 800 122 PC164 AlphaPC164 123 Rawhide AS 1200, AS 4000, AS 4100 124 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX 125 SX164 AlphaPC164-SX 126 Sable AS 2000, AS 2100 127 Shark DS 20L 128 Takara Takara (OEM) 129 Titan AlphaServer ES45 / DS25 / DS15 130 Wildfire AlphaServer GS 40/80/160/320 131 132 If you don't know what to do, choose "generic". 133 134config ALPHA_GENERIC 135 bool "Generic" 136 depends on TTY 137 help 138 A generic kernel will run on all supported Alpha hardware. 139 140config ALPHA_ALCOR 141 bool "Alcor/Alpha-XLT" 142 help 143 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data 144 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O 145 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM 146 controller (256-bit memory bus) and a PCI interface. It also does 147 all the work required to support an external Bcache and to maintain 148 memory coherence when a PCI device DMAs into (or out of) memory. 149 150config ALPHA_XL 151 bool "Alpha-XL" 152 help 153 XL-233 and XL-266-based Alpha systems. 154 155config ALPHA_BOOK1 156 bool "AlphaBook1" 157 help 158 Dec AlphaBook1/Burns Alpha-based laptops. 159 160config ALPHA_AVANTI_CH 161 bool "Avanti" 162 163config ALPHA_CABRIOLET 164 bool "Cabriolet" 165 help 166 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now 167 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA 168 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in 169 Bcache SIMMs. Requires power supply with 3.3V output. 170 171config ALPHA_DP264 172 bool "DP264" 173 help 174 Various 21264 systems with the tsunami core logic chipset. 175 API Networks: 264DP, UP2000(+), CS20; 176 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. 177 178config ALPHA_EB164 179 bool "EB164" 180 help 181 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has 182 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is 183 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in 184 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, 185 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized 186 motherboard. Requires power supply with 3.3V output. 187 188config ALPHA_EB64P_CH 189 bool "EB64+" 190 191config ALPHA_EB66 192 bool "EB66" 193 help 194 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is 195 identical to EB64+. Baby PC-AT size. Runs from standard PC power 196 supply. The EB66 schematic was published as a marketing poster 197 advertising the 21066 as "the first microprocessor in the world with 198 embedded PCI". 199 200config ALPHA_EB66P 201 bool "EB66+" 202 help 203 Later variant of the EB66 board. 204 205config ALPHA_EIGER 206 bool "Eiger" 207 help 208 Apparently an obscure OEM single-board computer based on the 209 Typhoon/Tsunami chipset family. Information on it is scanty. 210 211config ALPHA_JENSEN 212 bool "Jensen" 213 help 214 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one 215 of the first-generation Alpha systems. A number of these systems 216 seem to be available on the second- hand market. The Jensen is a 217 floor-standing tower system which originally used a 150MHz 21064 It 218 used programmable logic to interface a 486 EISA I/O bridge to the 219 CPU. 220 221config ALPHA_LX164 222 bool "LX164" 223 help 224 A technical overview of this board is available at 225 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. 226 227config ALPHA_LYNX 228 bool "Lynx" 229 help 230 AlphaServer 2100A-based systems. 231 232config ALPHA_MARVEL 233 bool "Marvel" 234 help 235 AlphaServer ES47 / ES80 / GS1280 based on EV7. 236 237config ALPHA_MIATA 238 bool "Miata" 239 help 240 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, 241 or 600au). 242 243config ALPHA_MIKASA 244 bool "Mikasa" 245 help 246 AlphaServer 1000-based Alpha systems. 247 248config ALPHA_NAUTILUS 249 bool "Nautilus" 250 help 251 Alpha systems based on the AMD 751 & ALI 1543C chipsets. 252 253config ALPHA_NONAME_CH 254 bool "Noname" 255 256config ALPHA_NORITAKE 257 bool "Noritake" 258 help 259 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based 260 systems. 261 262config ALPHA_PC164 263 bool "PC164" 264 265config ALPHA_P2K 266 bool "Platform2000" 267 268config ALPHA_RAWHIDE 269 bool "Rawhide" 270 help 271 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. 272 See HOWTO at 273 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. 274 275config ALPHA_RUFFIAN 276 bool "Ruffian" 277 help 278 Samsung APC164UX. There is a page on known problems and workarounds 279 at <http://www.alphalinux.org/faq/FAQ-11.html>. 280 281config ALPHA_RX164 282 bool "RX164" 283 284config ALPHA_SX164 285 bool "SX164" 286 287config ALPHA_SABLE 288 bool "Sable" 289 help 290 Digital AlphaServer 2000 and 2100-based systems. 291 292config ALPHA_SHARK 293 bool "Shark" 294 295config ALPHA_TAKARA 296 bool "Takara" 297 help 298 Alpha 11164-based OEM single-board computer. 299 300config ALPHA_TITAN 301 bool "Titan" 302 help 303 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. 304 305config ALPHA_WILDFIRE 306 bool "Wildfire" 307 help 308 AlphaServer GS 40/80/160/320 SMP based on the EV67 core. 309 310endchoice 311 312# clear all implied options (don't want default values for those): 313# Most of these machines have ISA slots; not exactly sure which don't, 314# and this doesn't activate hordes of code, so do it always. 315config ISA 316 bool 317 default y 318 help 319 Find out whether you have ISA slots on your motherboard. ISA is the 320 name of a bus system, i.e. the way the CPU talks to the other stuff 321 inside your box. Other bus systems are PCI, EISA, MicroChannel 322 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 323 newer boards don't support it. If you have ISA, say Y, otherwise N. 324 325config ISA_DMA_API 326 bool 327 default y 328 329config PCI 330 bool 331 depends on !ALPHA_JENSEN 332 select GENERIC_PCI_IOMAP 333 default y 334 help 335 Find out whether you have a PCI motherboard. PCI is the name of a 336 bus system, i.e. the way the CPU talks to the other stuff inside 337 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or 338 VESA. If you have PCI, say Y, otherwise N. 339 340config PCI_DOMAINS 341 bool 342 default y 343 344config PCI_SYSCALL 345 def_bool PCI 346 347config IOMMU_HELPER 348 def_bool PCI 349 350config ALPHA_NONAME 351 bool 352 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH 353 default y 354 help 355 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia 356 UDB). This design was produced by Digital's Technical OEM (TOEM) 357 group. It uses the 21066 processor running at 166MHz or 233MHz. It 358 is a baby-AT size, and runs from a standard PC power supply. It has 359 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are 360 2 versions, with either PS/2 or large DIN connectors for the 361 keyboard. 362 363config ALPHA_EV4 364 bool 365 depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K 366 default y if !ALPHA_LYNX 367 368config ALPHA_LCA 369 bool 370 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K 371 default y 372 373config ALPHA_APECS 374 bool 375 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL 376 default y 377 378config ALPHA_EB64P 379 bool 380 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH 381 default y 382 help 383 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, 384 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. 385 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI 386 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), 387 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. 388 Runs from standard PC power supply. 389 390config ALPHA_EV5 391 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX 392 default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR 393 394config ALPHA_EV4 395 bool 396 default y if ALPHA_LYNX && !ALPHA_EV5 397 398config ALPHA_CIA 399 bool 400 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR 401 default y 402 403config ALPHA_EV56 404 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR 405 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA 406 407config ALPHA_EV56 408 prompt "EV56 CPU (speed >= 333MHz)?" 409 depends on ALPHA_NORITAKE || ALPHA_PRIMO 410 411config ALPHA_EV56 412 prompt "EV56 CPU (speed >= 400MHz)?" 413 depends on ALPHA_RAWHIDE 414 415config ALPHA_PRIMO 416 bool "EV5 CPU daughtercard (model 5/xxx)?" 417 depends on ALPHA_NORITAKE || ALPHA_MIKASA 418 help 419 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. 420 421config ALPHA_GAMMA 422 bool "EV5 CPU(s) (model 5/xxx)?" 423 depends on ALPHA_SABLE 424 help 425 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. 426 427config ALPHA_GAMMA 428 bool 429 depends on ALPHA_LYNX 430 default y 431 432config ALPHA_T2 433 bool 434 depends on ALPHA_SABLE || ALPHA_LYNX 435 default y 436 437config ALPHA_PYXIS 438 bool 439 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN 440 default y 441 442config ALPHA_EV6 443 bool 444 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL 445 default y 446 447config ALPHA_TSUNAMI 448 bool 449 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER 450 default y 451 452config ALPHA_EV67 453 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER 454 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL 455 help 456 Is this a machine based on the EV67 core? If in doubt, select N here 457 and the machine will be treated as an EV6. 458 459config ALPHA_MCPCIA 460 bool 461 depends on ALPHA_RAWHIDE 462 default y 463 464config ALPHA_POLARIS 465 bool 466 depends on ALPHA_RX164 467 default y 468 469config ALPHA_IRONGATE 470 bool 471 depends on ALPHA_NAUTILUS 472 default y 473 474config GENERIC_HWEIGHT 475 bool 476 default y if !ALPHA_EV67 477 478config ALPHA_AVANTI 479 bool 480 depends on ALPHA_XL || ALPHA_AVANTI_CH 481 default y 482 help 483 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based 484 Alphas. Info at 485 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. 486 487config ALPHA_BROKEN_IRQ_MASK 488 bool 489 depends on ALPHA_GENERIC || ALPHA_PC164 490 default y 491 492config VGA_HOSE 493 bool 494 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) 495 default y 496 help 497 Support VGA on an arbitrary hose; needed for several platforms 498 which always have multiple hoses, and whose consoles support it. 499 500 501config ALPHA_QEMU 502 bool "Run under QEMU emulation" 503 depends on !ALPHA_GENERIC 504 ---help--- 505 Assume the presence of special features supported by QEMU PALcode 506 that reduce the overhead of system emulation. 507 508 Generic kernels will auto-detect QEMU. But when building a 509 system-specific kernel, the assumption is that we want to 510 elimiate as many runtime tests as possible. 511 512 If unsure, say N. 513 514 515config ALPHA_SRM 516 bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME 517 depends on TTY 518 default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL 519 ---help--- 520 There are two different types of booting firmware on Alphas: SRM, 521 which is command line driven, and ARC, which uses menus and arrow 522 keys. Details about the Linux/Alpha booting process are contained in 523 the Linux/Alpha FAQ, accessible on the WWW from 524 <http://www.alphalinux.org/>. 525 526 The usual way to load Linux on an Alpha machine is to use MILO 527 (a bootloader that lets you pass command line parameters to the 528 kernel just like lilo does for the x86 architecture) which can be 529 loaded either from ARC or can be installed directly as a permanent 530 firmware replacement from floppy (which requires changing a certain 531 jumper on the motherboard). If you want to do either of these, say N 532 here. If MILO doesn't work on your system (true for Jensen 533 motherboards), you can bypass it altogether and boot Linux directly 534 from an SRM console; say Y here in order to do that. Note that you 535 won't be able to boot from an IDE disk using SRM. 536 537 If unsure, say N. 538 539config EISA 540 bool 541 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE 542 default y 543 544config ARCH_MAY_HAVE_PC_FDC 545 def_bool y 546 547config SMP 548 bool "Symmetric multi-processing support" 549 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL 550 ---help--- 551 This enables support for systems with more than one CPU. If you have 552 a system with only one CPU, say N. If you have a system with more 553 than one CPU, say Y. 554 555 If you say N here, the kernel will run on uni- and multiprocessor 556 machines, but will use only one CPU of a multiprocessor machine. If 557 you say Y here, the kernel will run on many, but not all, 558 uniprocessor machines. On a uniprocessor machine, the kernel 559 will run faster if you say N here. 560 561 See also the SMP-HOWTO available at 562 <http://www.tldp.org/docs.html#howto>. 563 564 If you don't know what to do here, say N. 565 566config HAVE_DEC_LOCK 567 bool 568 depends on SMP 569 default y 570 571config NR_CPUS 572 int "Maximum number of CPUs (2-32)" 573 range 2 32 574 depends on SMP 575 default "32" if ALPHA_GENERIC || ALPHA_MARVEL 576 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL 577 help 578 MARVEL support can handle a maximum of 32 CPUs, all the others 579 with working support have a maximum of 4 CPUs. 580 581config ARCH_DISCONTIGMEM_ENABLE 582 bool "Discontiguous Memory Support" 583 help 584 Say Y to support efficient handling of discontiguous physical memory, 585 for architectures which are either NUMA (Non-Uniform Memory Access) 586 or have huge holes in the physical address space for other reasons. 587 See <file:Documentation/vm/numa> for more. 588 589source "mm/Kconfig" 590 591config NUMA 592 bool "NUMA Support (EXPERIMENTAL)" 593 depends on DISCONTIGMEM && BROKEN 594 help 595 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 596 Access). This option is for configuring high-end multiprocessor 597 server machines. If in doubt, say N. 598 599config ALPHA_WTINT 600 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC 601 default y if ALPHA_QEMU 602 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) 603 default n if !ALPHA_SRM && !ALPHA_GENERIC 604 default y if SMP 605 ---help--- 606 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU 607 to sleep until the next interrupt. This may reduce the power 608 consumed, and the heat produced by the computer. However, it has 609 the side effect of making the cycle counter unreliable as a timing 610 device across the sleep. 611 612 For emulation under QEMU, definitely say Y here, as we have other 613 mechanisms for measuring time than the cycle counter. 614 615 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running 616 MILO, sleep mode is not supported so you might as well say N here. 617 618 For SMP systems we cannot use the cycle counter for timing anyway, 619 so you might as well say Y here. 620 621 If unsure, say N. 622 623config NODES_SHIFT 624 int 625 default "7" 626 depends on NEED_MULTIPLE_NODES 627 628# LARGE_VMALLOC is racy, if you *really* need it then fix it first 629config ALPHA_LARGE_VMALLOC 630 bool 631 ---help--- 632 Process creation and other aspects of virtual memory management can 633 be streamlined if we restrict the kernel to one PGD for all vmalloc 634 allocations. This equates to about 8GB. 635 636 Under normal circumstances, this is so far and above what is needed 637 as to be laughable. However, there are certain applications (such 638 as benchmark-grade in-kernel web serving) that can make use of as 639 much vmalloc space as is available. 640 641 Say N unless you know you need gobs and gobs of vmalloc space. 642 643config VERBOSE_MCHECK 644 bool "Verbose Machine Checks" 645 646config VERBOSE_MCHECK_ON 647 int "Verbose Printing Mode (0=off, 1=on, 2=all)" 648 depends on VERBOSE_MCHECK 649 default 1 650 ---help--- 651 This option allows the default printing mode to be set, and then 652 possibly overridden by a boot command argument. 653 654 For example, if one wanted the option of printing verbose 655 machine checks, but wanted the default to be as if verbose 656 machine check printing was turned off, then one would choose 657 the printing mode to be 0. Then, upon reboot, one could add 658 the boot command line "verbose_mcheck=1" to get the normal 659 verbose machine check printing, or "verbose_mcheck=2" to get 660 the maximum information available. 661 662 Take the default (1) unless you want more control or more info. 663 664choice 665 prompt "Timer interrupt frequency (HZ)?" 666 default HZ_128 if ALPHA_QEMU 667 default HZ_1200 if ALPHA_RAWHIDE 668 default HZ_1024 669 ---help--- 670 The frequency at which timer interrupts occur. A high frequency 671 minimizes latency, whereas a low frequency minimizes overhead of 672 process accounting. The later effect is especially significant 673 when being run under QEMU. 674 675 Note that some Alpha hardware cannot change the interrupt frequency 676 of the timer. If unsure, say 1024 (or 1200 for Rawhide). 677 678 config HZ_32 679 bool "32 Hz" 680 config HZ_64 681 bool "64 Hz" 682 config HZ_128 683 bool "128 Hz" 684 config HZ_256 685 bool "256 Hz" 686 config HZ_1024 687 bool "1024 Hz" 688 config HZ_1200 689 bool "1200 Hz" 690endchoice 691 692config HZ 693 int 694 default 32 if HZ_32 695 default 64 if HZ_64 696 default 128 if HZ_128 697 default 256 if HZ_256 698 default 1200 if HZ_1200 699 default 1024 700 701source "drivers/pci/Kconfig" 702source "drivers/eisa/Kconfig" 703 704source "drivers/pcmcia/Kconfig" 705 706config SRM_ENV 707 tristate "SRM environment through procfs" 708 depends on PROC_FS 709 ---help--- 710 If you enable this option, a subdirectory inside /proc called 711 /proc/srm_environment will give you access to the all important 712 SRM environment variables (those which have a name) and also 713 to all others (by their internal number). 714 715 SRM is something like a BIOS for Alpha machines. There are some 716 other such BIOSes, like AlphaBIOS, which this driver cannot 717 support (hey, that's not SRM!). 718 719 Despite the fact that this driver doesn't work on all Alphas (but 720 only on those which have SRM as their firmware), it's save to 721 build it even if your particular machine doesn't know about SRM 722 (or if you intend to compile a generic kernel). It will simply 723 not create those subdirectory in /proc (and give you some warning, 724 of course). 725 726 This driver is also available as a module and will be called 727 srm_env then. 728 729source "fs/Kconfig.binfmt" 730 731endmenu 732 733source "net/Kconfig" 734 735source "drivers/Kconfig" 736 737source "fs/Kconfig" 738 739source "arch/alpha/Kconfig.debug" 740 741# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig 742# but we also need it if VGA_HOSE is set 743config DUMMY_CONSOLE 744 bool 745 depends on VGA_HOSE 746 default y 747 748source "security/Kconfig" 749 750source "crypto/Kconfig" 751 752source "lib/Kconfig" 753 754