1# SPDX-License-Identifier: GPL-2.0 2config ALPHA 3 bool 4 default y 5 select ARCH_MIGHT_HAVE_PC_PARPORT 6 select ARCH_MIGHT_HAVE_PC_SERIO 7 select ARCH_USE_CMPXCHG_LOCKREF 8 select HAVE_AOUT 9 select HAVE_IDE 10 select HAVE_OPROFILE 11 select HAVE_PCSPKR_PLATFORM 12 select HAVE_PERF_EVENTS 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_IPC_PARSE_VERSION 18 select ARCH_HAVE_NMI_SAFE_CMPXCHG 19 select AUDIT_ARCH 20 select GENERIC_CLOCKEVENTS 21 select GENERIC_SMP_IDLE_THREAD 22 select GENERIC_STRNCPY_FROM_USER 23 select GENERIC_STRNLEN_USER 24 select HAVE_ARCH_AUDITSYSCALL 25 select HAVE_MOD_ARCH_SPECIFIC 26 select MODULES_USE_ELF_RELA 27 select ODD_RT_SIGACTION 28 select OLD_SIGSUSPEND 29 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 30 help 31 The Alpha is a 64-bit general-purpose processor designed and 32 marketed by the Digital Equipment Corporation of blessed memory, 33 now Hewlett-Packard. The Alpha Linux project has a home page at 34 <http://www.alphalinux.org/>. 35 36config 64BIT 37 def_bool y 38 39config MMU 40 bool 41 default y 42 43config RWSEM_GENERIC_SPINLOCK 44 bool 45 46config RWSEM_XCHGADD_ALGORITHM 47 bool 48 default y 49 50config ARCH_HAS_ILOG2_U32 51 bool 52 default n 53 54config ARCH_HAS_ILOG2_U64 55 bool 56 default n 57 58config GENERIC_CALIBRATE_DELAY 59 bool 60 default y 61 62config ZONE_DMA 63 bool 64 default y 65 66config ARCH_DMA_ADDR_T_64BIT 67 def_bool y 68 69config NEED_DMA_MAP_STATE 70 def_bool y 71 72config NEED_SG_DMA_LENGTH 73 def_bool y 74 75config GENERIC_ISA_DMA 76 bool 77 default y 78 79config PGTABLE_LEVELS 80 int 81 default 3 82 83source "init/Kconfig" 84source "kernel/Kconfig.freezer" 85 86config AUDIT_ARCH 87 bool 88 89menu "System setup" 90 91choice 92 prompt "Alpha system type" 93 default ALPHA_GENERIC 94 ---help--- 95 This is the system type of your hardware. A "generic" kernel will 96 run on any supported Alpha system. However, if you configure a 97 kernel for your specific system, it will be faster and smaller. 98 99 To find out what type of Alpha system you have, you may want to 100 check out the Linux/Alpha FAQ, accessible on the WWW from 101 <http://www.alphalinux.org/>. In summary: 102 103 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 104 Alpha-XL XL-233, XL-266 105 AlphaBook1 Alpha laptop 106 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 107 Cabriolet AlphaPC64, AlphaPCI64 108 DP264 DP264 / DS20 / ES40 / DS10 / DS10L 109 EB164 EB164 21164 evaluation board 110 EB64+ EB64+ 21064 evaluation board 111 EB66 EB66 21066 evaluation board 112 EB66+ EB66+ 21066 evaluation board 113 Jensen DECpc 150, DEC 2000 models 300, 500 114 LX164 AlphaPC164-LX 115 Lynx AS 2100A 116 Miata Personal Workstation 433/500/600 a/au 117 Marvel AlphaServer ES47 / ES80 / GS1280 118 Mikasa AS 1000 119 Noname AXPpci33, UDB (Multia) 120 Noritake AS 1000A, AS 600A, AS 800 121 PC164 AlphaPC164 122 Rawhide AS 1200, AS 4000, AS 4100 123 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX 124 SX164 AlphaPC164-SX 125 Sable AS 2000, AS 2100 126 Shark DS 20L 127 Takara Takara (OEM) 128 Titan AlphaServer ES45 / DS25 / DS15 129 Wildfire AlphaServer GS 40/80/160/320 130 131 If you don't know what to do, choose "generic". 132 133config ALPHA_GENERIC 134 bool "Generic" 135 depends on TTY 136 help 137 A generic kernel will run on all supported Alpha hardware. 138 139config ALPHA_ALCOR 140 bool "Alcor/Alpha-XLT" 141 help 142 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data 143 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O 144 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM 145 controller (256-bit memory bus) and a PCI interface. It also does 146 all the work required to support an external Bcache and to maintain 147 memory coherence when a PCI device DMAs into (or out of) memory. 148 149config ALPHA_XL 150 bool "Alpha-XL" 151 help 152 XL-233 and XL-266-based Alpha systems. 153 154config ALPHA_BOOK1 155 bool "AlphaBook1" 156 help 157 Dec AlphaBook1/Burns Alpha-based laptops. 158 159config ALPHA_AVANTI_CH 160 bool "Avanti" 161 162config ALPHA_CABRIOLET 163 bool "Cabriolet" 164 help 165 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now 166 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA 167 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in 168 Bcache SIMMs. Requires power supply with 3.3V output. 169 170config ALPHA_DP264 171 bool "DP264" 172 help 173 Various 21264 systems with the tsunami core logic chipset. 174 API Networks: 264DP, UP2000(+), CS20; 175 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. 176 177config ALPHA_EB164 178 bool "EB164" 179 help 180 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has 181 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is 182 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in 183 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, 184 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized 185 motherboard. Requires power supply with 3.3V output. 186 187config ALPHA_EB64P_CH 188 bool "EB64+" 189 190config ALPHA_EB66 191 bool "EB66" 192 help 193 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is 194 identical to EB64+. Baby PC-AT size. Runs from standard PC power 195 supply. The EB66 schematic was published as a marketing poster 196 advertising the 21066 as "the first microprocessor in the world with 197 embedded PCI". 198 199config ALPHA_EB66P 200 bool "EB66+" 201 help 202 Later variant of the EB66 board. 203 204config ALPHA_EIGER 205 bool "Eiger" 206 help 207 Apparently an obscure OEM single-board computer based on the 208 Typhoon/Tsunami chipset family. Information on it is scanty. 209 210config ALPHA_JENSEN 211 bool "Jensen" 212 help 213 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one 214 of the first-generation Alpha systems. A number of these systems 215 seem to be available on the second- hand market. The Jensen is a 216 floor-standing tower system which originally used a 150MHz 21064 It 217 used programmable logic to interface a 486 EISA I/O bridge to the 218 CPU. 219 220config ALPHA_LX164 221 bool "LX164" 222 help 223 A technical overview of this board is available at 224 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. 225 226config ALPHA_LYNX 227 bool "Lynx" 228 help 229 AlphaServer 2100A-based systems. 230 231config ALPHA_MARVEL 232 bool "Marvel" 233 help 234 AlphaServer ES47 / ES80 / GS1280 based on EV7. 235 236config ALPHA_MIATA 237 bool "Miata" 238 help 239 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, 240 or 600au). 241 242config ALPHA_MIKASA 243 bool "Mikasa" 244 help 245 AlphaServer 1000-based Alpha systems. 246 247config ALPHA_NAUTILUS 248 bool "Nautilus" 249 help 250 Alpha systems based on the AMD 751 & ALI 1543C chipsets. 251 252config ALPHA_NONAME_CH 253 bool "Noname" 254 255config ALPHA_NORITAKE 256 bool "Noritake" 257 help 258 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based 259 systems. 260 261config ALPHA_PC164 262 bool "PC164" 263 264config ALPHA_P2K 265 bool "Platform2000" 266 267config ALPHA_RAWHIDE 268 bool "Rawhide" 269 help 270 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. 271 See HOWTO at 272 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. 273 274config ALPHA_RUFFIAN 275 bool "Ruffian" 276 help 277 Samsung APC164UX. There is a page on known problems and workarounds 278 at <http://www.alphalinux.org/faq/FAQ-11.html>. 279 280config ALPHA_RX164 281 bool "RX164" 282 283config ALPHA_SX164 284 bool "SX164" 285 286config ALPHA_SABLE 287 bool "Sable" 288 help 289 Digital AlphaServer 2000 and 2100-based systems. 290 291config ALPHA_SHARK 292 bool "Shark" 293 294config ALPHA_TAKARA 295 bool "Takara" 296 help 297 Alpha 11164-based OEM single-board computer. 298 299config ALPHA_TITAN 300 bool "Titan" 301 help 302 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. 303 304config ALPHA_WILDFIRE 305 bool "Wildfire" 306 help 307 AlphaServer GS 40/80/160/320 SMP based on the EV67 core. 308 309endchoice 310 311# clear all implied options (don't want default values for those): 312# Most of these machines have ISA slots; not exactly sure which don't, 313# and this doesn't activate hordes of code, so do it always. 314config ISA 315 bool 316 default y 317 help 318 Find out whether you have ISA slots on your motherboard. ISA is the 319 name of a bus system, i.e. the way the CPU talks to the other stuff 320 inside your box. Other bus systems are PCI, EISA, MicroChannel 321 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 322 newer boards don't support it. If you have ISA, say Y, otherwise N. 323 324config ISA_DMA_API 325 bool 326 default y 327 328config PCI 329 bool 330 depends on !ALPHA_JENSEN 331 select GENERIC_PCI_IOMAP 332 default y 333 help 334 Find out whether you have a PCI motherboard. PCI is the name of a 335 bus system, i.e. the way the CPU talks to the other stuff inside 336 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or 337 VESA. If you have PCI, say Y, otherwise N. 338 339config PCI_DOMAINS 340 bool 341 default y 342 343config PCI_SYSCALL 344 def_bool PCI 345 346config IOMMU_HELPER 347 def_bool PCI 348 349config ALPHA_NONAME 350 bool 351 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH 352 default y 353 help 354 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia 355 UDB). This design was produced by Digital's Technical OEM (TOEM) 356 group. It uses the 21066 processor running at 166MHz or 233MHz. It 357 is a baby-AT size, and runs from a standard PC power supply. It has 358 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are 359 2 versions, with either PS/2 or large DIN connectors for the 360 keyboard. 361 362config ALPHA_EV4 363 bool 364 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 365 default y if !ALPHA_LYNX 366 367config ALPHA_LCA 368 bool 369 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K 370 default y 371 372config ALPHA_APECS 373 bool 374 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL 375 default y 376 377config ALPHA_EB64P 378 bool 379 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH 380 default y 381 help 382 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, 383 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. 384 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI 385 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), 386 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. 387 Runs from standard PC power supply. 388 389config ALPHA_EV5 390 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX 391 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 392 393config ALPHA_EV4 394 bool 395 default y if ALPHA_LYNX && !ALPHA_EV5 396 397config ALPHA_CIA 398 bool 399 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 400 default y 401 402config ALPHA_EV56 403 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR 404 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA 405 406config ALPHA_EV56 407 prompt "EV56 CPU (speed >= 333MHz)?" 408 depends on ALPHA_NORITAKE || ALPHA_PRIMO 409 410config ALPHA_EV56 411 prompt "EV56 CPU (speed >= 400MHz)?" 412 depends on ALPHA_RAWHIDE 413 414config ALPHA_PRIMO 415 bool "EV5 CPU daughtercard (model 5/xxx)?" 416 depends on ALPHA_NORITAKE || ALPHA_MIKASA 417 help 418 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. 419 420config ALPHA_GAMMA 421 bool "EV5 CPU(s) (model 5/xxx)?" 422 depends on ALPHA_SABLE 423 help 424 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. 425 426config ALPHA_GAMMA 427 bool 428 depends on ALPHA_LYNX 429 default y 430 431config ALPHA_T2 432 bool 433 depends on ALPHA_SABLE || ALPHA_LYNX 434 default y 435 436config ALPHA_PYXIS 437 bool 438 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN 439 default y 440 441config ALPHA_EV6 442 bool 443 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL 444 default y 445 446config ALPHA_TSUNAMI 447 bool 448 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER 449 default y 450 451config ALPHA_EV67 452 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER 453 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL 454 help 455 Is this a machine based on the EV67 core? If in doubt, select N here 456 and the machine will be treated as an EV6. 457 458config ALPHA_MCPCIA 459 bool 460 depends on ALPHA_RAWHIDE 461 default y 462 463config ALPHA_POLARIS 464 bool 465 depends on ALPHA_RX164 466 default y 467 468config ALPHA_IRONGATE 469 bool 470 depends on ALPHA_NAUTILUS 471 default y 472 473config GENERIC_HWEIGHT 474 bool 475 default y if !ALPHA_EV67 476 477config ALPHA_AVANTI 478 bool 479 depends on ALPHA_XL || ALPHA_AVANTI_CH 480 default y 481 help 482 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based 483 Alphas. Info at 484 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. 485 486config ALPHA_BROKEN_IRQ_MASK 487 bool 488 depends on ALPHA_GENERIC || ALPHA_PC164 489 default y 490 491config VGA_HOSE 492 bool 493 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) 494 default y 495 help 496 Support VGA on an arbitrary hose; needed for several platforms 497 which always have multiple hoses, and whose consoles support it. 498 499 500config ALPHA_QEMU 501 bool "Run under QEMU emulation" 502 depends on !ALPHA_GENERIC 503 ---help--- 504 Assume the presence of special features supported by QEMU PALcode 505 that reduce the overhead of system emulation. 506 507 Generic kernels will auto-detect QEMU. But when building a 508 system-specific kernel, the assumption is that we want to 509 eliminate as many runtime tests as possible. 510 511 If unsure, say N. 512 513 514config ALPHA_SRM 515 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 516 depends on TTY 517 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 518 ---help--- 519 There are two different types of booting firmware on Alphas: SRM, 520 which is command line driven, and ARC, which uses menus and arrow 521 keys. Details about the Linux/Alpha booting process are contained in 522 the Linux/Alpha FAQ, accessible on the WWW from 523 <http://www.alphalinux.org/>. 524 525 The usual way to load Linux on an Alpha machine is to use MILO 526 (a bootloader that lets you pass command line parameters to the 527 kernel just like lilo does for the x86 architecture) which can be 528 loaded either from ARC or can be installed directly as a permanent 529 firmware replacement from floppy (which requires changing a certain 530 jumper on the motherboard). If you want to do either of these, say N 531 here. If MILO doesn't work on your system (true for Jensen 532 motherboards), you can bypass it altogether and boot Linux directly 533 from an SRM console; say Y here in order to do that. Note that you 534 won't be able to boot from an IDE disk using SRM. 535 536 If unsure, say N. 537 538config EISA 539 bool 540 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE 541 default y 542 543config ARCH_MAY_HAVE_PC_FDC 544 def_bool y 545 546config SMP 547 bool "Symmetric multi-processing support" 548 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL 549 ---help--- 550 This enables support for systems with more than one CPU. If you have 551 a system with only one CPU, say N. If you have a system with more 552 than one CPU, say Y. 553 554 If you say N here, the kernel will run on uni- and multiprocessor 555 machines, but will use only one CPU of a multiprocessor machine. If 556 you say Y here, the kernel will run on many, but not all, 557 uniprocessor machines. On a uniprocessor machine, the kernel 558 will run faster if you say N here. 559 560 See also the SMP-HOWTO available at 561 <http://www.tldp.org/docs.html#howto>. 562 563 If you don't know what to do here, say N. 564 565config HAVE_DEC_LOCK 566 bool 567 depends on SMP 568 default y 569 570config NR_CPUS 571 int "Maximum number of CPUs (2-32)" 572 range 2 32 573 depends on SMP 574 default "32" if ALPHA_GENERIC || ALPHA_MARVEL 575 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL 576 help 577 MARVEL support can handle a maximum of 32 CPUs, all the others 578 with working support have a maximum of 4 CPUs. 579 580config ARCH_DISCONTIGMEM_ENABLE 581 bool "Discontiguous Memory Support" 582 help 583 Say Y to support efficient handling of discontiguous physical memory, 584 for architectures which are either NUMA (Non-Uniform Memory Access) 585 or have huge holes in the physical address space for other reasons. 586 See <file:Documentation/vm/numa> for more. 587 588source "mm/Kconfig" 589 590config NUMA 591 bool "NUMA Support (EXPERIMENTAL)" 592 depends on DISCONTIGMEM && BROKEN 593 help 594 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 595 Access). This option is for configuring high-end multiprocessor 596 server machines. If in doubt, say N. 597 598config ALPHA_WTINT 599 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC 600 default y if ALPHA_QEMU 601 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) 602 default n if !ALPHA_SRM && !ALPHA_GENERIC 603 default y if SMP 604 ---help--- 605 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU 606 to sleep until the next interrupt. This may reduce the power 607 consumed, and the heat produced by the computer. However, it has 608 the side effect of making the cycle counter unreliable as a timing 609 device across the sleep. 610 611 For emulation under QEMU, definitely say Y here, as we have other 612 mechanisms for measuring time than the cycle counter. 613 614 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running 615 MILO, sleep mode is not supported so you might as well say N here. 616 617 For SMP systems we cannot use the cycle counter for timing anyway, 618 so you might as well say Y here. 619 620 If unsure, say N. 621 622config NODES_SHIFT 623 int 624 default "7" 625 depends on NEED_MULTIPLE_NODES 626 627# LARGE_VMALLOC is racy, if you *really* need it then fix it first 628config ALPHA_LARGE_VMALLOC 629 bool 630 ---help--- 631 Process creation and other aspects of virtual memory management can 632 be streamlined if we restrict the kernel to one PGD for all vmalloc 633 allocations. This equates to about 8GB. 634 635 Under normal circumstances, this is so far and above what is needed 636 as to be laughable. However, there are certain applications (such 637 as benchmark-grade in-kernel web serving) that can make use of as 638 much vmalloc space as is available. 639 640 Say N unless you know you need gobs and gobs of vmalloc space. 641 642config VERBOSE_MCHECK 643 bool "Verbose Machine Checks" 644 645config VERBOSE_MCHECK_ON 646 int "Verbose Printing Mode (0=off, 1=on, 2=all)" 647 depends on VERBOSE_MCHECK 648 default 1 649 ---help--- 650 This option allows the default printing mode to be set, and then 651 possibly overridden by a boot command argument. 652 653 For example, if one wanted the option of printing verbose 654 machine checks, but wanted the default to be as if verbose 655 machine check printing was turned off, then one would choose 656 the printing mode to be 0. Then, upon reboot, one could add 657 the boot command line "verbose_mcheck=1" to get the normal 658 verbose machine check printing, or "verbose_mcheck=2" to get 659 the maximum information available. 660 661 Take the default (1) unless you want more control or more info. 662 663choice 664 prompt "Timer interrupt frequency (HZ)?" 665 default HZ_128 if ALPHA_QEMU 666 default HZ_1200 if ALPHA_RAWHIDE 667 default HZ_1024 668 ---help--- 669 The frequency at which timer interrupts occur. A high frequency 670 minimizes latency, whereas a low frequency minimizes overhead of 671 process accounting. The later effect is especially significant 672 when being run under QEMU. 673 674 Note that some Alpha hardware cannot change the interrupt frequency 675 of the timer. If unsure, say 1024 (or 1200 for Rawhide). 676 677 config HZ_32 678 bool "32 Hz" 679 config HZ_64 680 bool "64 Hz" 681 config HZ_128 682 bool "128 Hz" 683 config HZ_256 684 bool "256 Hz" 685 config HZ_1024 686 bool "1024 Hz" 687 config HZ_1200 688 bool "1200 Hz" 689endchoice 690 691config HZ 692 int 693 default 32 if HZ_32 694 default 64 if HZ_64 695 default 128 if HZ_128 696 default 256 if HZ_256 697 default 1200 if HZ_1200 698 default 1024 699 700source "drivers/pci/Kconfig" 701source "drivers/eisa/Kconfig" 702 703source "drivers/pcmcia/Kconfig" 704 705config SRM_ENV 706 tristate "SRM environment through procfs" 707 depends on PROC_FS 708 ---help--- 709 If you enable this option, a subdirectory inside /proc called 710 /proc/srm_environment will give you access to the all important 711 SRM environment variables (those which have a name) and also 712 to all others (by their internal number). 713 714 SRM is something like a BIOS for Alpha machines. There are some 715 other such BIOSes, like AlphaBIOS, which this driver cannot 716 support (hey, that's not SRM!). 717 718 Despite the fact that this driver doesn't work on all Alphas (but 719 only on those which have SRM as their firmware), it's save to 720 build it even if your particular machine doesn't know about SRM 721 (or if you intend to compile a generic kernel). It will simply 722 not create those subdirectory in /proc (and give you some warning, 723 of course). 724 725 This driver is also available as a module and will be called 726 srm_env then. 727 728source "fs/Kconfig.binfmt" 729 730endmenu 731 732source "net/Kconfig" 733 734source "drivers/Kconfig" 735 736source "fs/Kconfig" 737 738source "arch/alpha/Kconfig.debug" 739 740# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig 741# but we also need it if VGA_HOSE is set 742config DUMMY_CONSOLE 743 bool 744 depends on VGA_HOSE 745 default y 746 747source "security/Kconfig" 748 749source "crypto/Kconfig" 750 751source "lib/Kconfig" 752 753