1# SPDX-License-Identifier: GPL-2.0 2config ALPHA 3 bool 4 default y 5 select ARCH_32BIT_USTAT_F_TINODE 6 select ARCH_HAS_CURRENT_STACK_POINTER 7 select ARCH_MIGHT_HAVE_PC_PARPORT 8 select ARCH_MIGHT_HAVE_PC_SERIO 9 select ARCH_NO_PREEMPT 10 select ARCH_NO_SG_CHAIN 11 select ARCH_USE_CMPXCHG_LOCKREF 12 select DMA_OPS if PCI 13 select FORCE_PCI 14 select PCI_DOMAINS if PCI 15 select PCI_SYSCALL if PCI 16 select HAVE_ASM_MODVERSIONS 17 select HAVE_PAGE_SIZE_8KB 18 select HAVE_PCSPKR_PLATFORM 19 select HAVE_PERF_EVENTS 20 select NEED_DMA_MAP_STATE 21 select NEED_SG_DMA_LENGTH 22 select GENERIC_IRQ_PROBE 23 select GENERIC_PCI_IOMAP 24 select AUTO_IRQ_AFFINITY if SMP 25 select GENERIC_IRQ_SHOW 26 select ARCH_WANT_IPC_PARSE_VERSION 27 select ARCH_HAVE_NMI_SAFE_CMPXCHG 28 select AUDIT_ARCH 29 select GENERIC_CPU_VULNERABILITIES 30 select GENERIC_SMP_IDLE_THREAD 31 select HAS_IOPORT 32 select HAVE_ARCH_AUDITSYSCALL 33 select HAVE_MOD_ARCH_SPECIFIC 34 select LOCK_MM_AND_FIND_VMA 35 select MODULES_USE_ELF_RELA 36 select ODD_RT_SIGACTION 37 select OLD_SIGSUSPEND 38 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 39 select MMU_GATHER_NO_RANGE 40 select SPARSEMEM_EXTREME if SPARSEMEM 41 select ZONE_DMA 42 help 43 The Alpha is a 64-bit general-purpose processor designed and 44 marketed by the Digital Equipment Corporation of blessed memory, 45 now Hewlett-Packard. The Alpha Linux project has a home page at 46 <http://www.alphalinux.org/>. 47 48config 64BIT 49 def_bool y 50 51config MMU 52 bool 53 default y 54 55config ARCH_HAS_ILOG2_U32 56 bool 57 default n 58 59config ARCH_HAS_ILOG2_U64 60 bool 61 default n 62 63config GENERIC_CALIBRATE_DELAY 64 bool 65 default y 66 67config GENERIC_ISA_DMA 68 bool 69 default y 70 71config PGTABLE_LEVELS 72 int 73 default 3 74 75config AUDIT_ARCH 76 bool 77 78menu "System setup" 79 80choice 81 prompt "Alpha system type" 82 default ALPHA_GENERIC 83 help 84 This is the system type of your hardware. A "generic" kernel will 85 run on any supported Alpha system. However, if you configure a 86 kernel for your specific system, it will be faster and smaller. 87 88 To find out what type of Alpha system you have, you may want to 89 check out the Linux/Alpha FAQ, accessible on the WWW from 90 <http://www.alphalinux.org/>. In summary: 91 92 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 93 Alpha-XL XL-233, XL-266 94 AlphaBook1 Alpha laptop 95 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 96 Cabriolet AlphaPC64, AlphaPCI64 97 DP264 DP264 / DS20 / ES40 / DS10 / DS10L 98 EB164 EB164 21164 evaluation board 99 EB64+ EB64+ 21064 evaluation board 100 EB66 EB66 21066 evaluation board 101 EB66+ EB66+ 21066 evaluation board 102 LX164 AlphaPC164-LX 103 Lynx AS 2100A 104 Miata Personal Workstation 433/500/600 a/au 105 Marvel AlphaServer ES47 / ES80 / GS1280 106 Mikasa AS 1000 107 Noname AXPpci33, UDB (Multia) 108 Noritake AS 1000A, AS 600A, AS 800 109 PC164 AlphaPC164 110 Rawhide AS 1200, AS 4000, AS 4100 111 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX 112 SX164 AlphaPC164-SX 113 Sable AS 2000, AS 2100 114 Shark DS 20L 115 Takara Takara (OEM) 116 Titan AlphaServer ES45 / DS25 / DS15 117 Wildfire AlphaServer GS 40/80/160/320 118 119 If you don't know what to do, choose "generic". 120 121config ALPHA_GENERIC 122 bool "Generic" 123 depends on TTY 124 select HAVE_EISA 125 help 126 A generic kernel will run on all supported Alpha hardware. 127 128config ALPHA_ALCOR 129 bool "Alcor/Alpha-XLT" 130 select HAVE_EISA 131 help 132 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data 133 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O 134 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM 135 controller (256-bit memory bus) and a PCI interface. It also does 136 all the work required to support an external Bcache and to maintain 137 memory coherence when a PCI device DMAs into (or out of) memory. 138 139config ALPHA_XL 140 bool "Alpha-XL" 141 help 142 XL-233 and XL-266-based Alpha systems. 143 144config ALPHA_BOOK1 145 bool "AlphaBook1" 146 help 147 Dec AlphaBook1/Burns Alpha-based laptops. 148 149config ALPHA_AVANTI_CH 150 bool "Avanti" 151 152config ALPHA_CABRIOLET 153 bool "Cabriolet" 154 help 155 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now 156 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA 157 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in 158 Bcache SIMMs. Requires power supply with 3.3V output. 159 160config ALPHA_DP264 161 bool "DP264" 162 help 163 Various 21264 systems with the tsunami core logic chipset. 164 API Networks: 264DP, UP2000(+), CS20; 165 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. 166 167config ALPHA_EB164 168 bool "EB164" 169 help 170 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has 171 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is 172 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in 173 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, 174 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized 175 motherboard. Requires power supply with 3.3V output. 176 177config ALPHA_EB64P_CH 178 bool "EB64+" 179 180config ALPHA_EB66 181 bool "EB66" 182 help 183 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is 184 identical to EB64+. Baby PC-AT size. Runs from standard PC power 185 supply. The EB66 schematic was published as a marketing poster 186 advertising the 21066 as "the first microprocessor in the world with 187 embedded PCI". 188 189config ALPHA_EB66P 190 bool "EB66+" 191 help 192 Later variant of the EB66 board. 193 194config ALPHA_EIGER 195 bool "Eiger" 196 help 197 Apparently an obscure OEM single-board computer based on the 198 Typhoon/Tsunami chipset family. Information on it is scanty. 199 200config ALPHA_LX164 201 bool "LX164" 202 help 203 A technical overview of this board is available at 204 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. 205 206config ALPHA_LYNX 207 bool "Lynx" 208 select HAVE_EISA 209 help 210 AlphaServer 2100A-based systems. 211 212config ALPHA_MARVEL 213 bool "Marvel" 214 help 215 AlphaServer ES47 / ES80 / GS1280 based on EV7. 216 217config ALPHA_MIATA 218 bool "Miata" 219 select HAVE_EISA 220 help 221 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, 222 or 600au). 223 224config ALPHA_MIKASA 225 bool "Mikasa" 226 help 227 AlphaServer 1000-based Alpha systems. 228 229config ALPHA_NAUTILUS 230 bool "Nautilus" 231 help 232 Alpha systems based on the AMD 751 & ALI 1543C chipsets. 233 234config ALPHA_NONAME_CH 235 bool "Noname" 236 237config ALPHA_NORITAKE 238 bool "Noritake" 239 select HAVE_EISA 240 help 241 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based 242 systems. 243 244config ALPHA_PC164 245 bool "PC164" 246 247config ALPHA_P2K 248 bool "Platform2000" 249 250config ALPHA_RAWHIDE 251 bool "Rawhide" 252 select HAVE_EISA 253 help 254 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. 255 See HOWTO at 256 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. 257 258config ALPHA_RUFFIAN 259 bool "Ruffian" 260 help 261 Samsung APC164UX. There is a page on known problems and workarounds 262 at <http://www.alphalinux.org/faq/FAQ-11.html>. 263 264config ALPHA_RX164 265 bool "RX164" 266 267config ALPHA_SX164 268 bool "SX164" 269 270config ALPHA_SABLE 271 bool "Sable" 272 select HAVE_EISA 273 help 274 Digital AlphaServer 2000 and 2100-based systems. 275 276config ALPHA_SHARK 277 bool "Shark" 278 279config ALPHA_TAKARA 280 bool "Takara" 281 help 282 Alpha 11164-based OEM single-board computer. 283 284config ALPHA_TITAN 285 bool "Titan" 286 help 287 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. 288 289config ALPHA_WILDFIRE 290 bool "Wildfire" 291 help 292 AlphaServer GS 40/80/160/320 SMP based on the EV67 core. 293 294endchoice 295 296# clear all implied options (don't want default values for those): 297# Most of these machines have ISA slots; not exactly sure which don't, 298# and this doesn't activate hordes of code, so do it always. 299config ISA 300 bool 301 default y 302 help 303 Find out whether you have ISA slots on your motherboard. ISA is the 304 name of a bus system, i.e. the way the CPU talks to the other stuff 305 inside your box. Other bus systems are PCI, EISA, MicroChannel 306 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 307 newer boards don't support it. If you have ISA, say Y, otherwise N. 308 309config ISA_DMA_API 310 bool 311 default y 312 313config ALPHA_NONAME 314 bool 315 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH 316 default y 317 help 318 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia 319 UDB). This design was produced by Digital's Technical OEM (TOEM) 320 group. It uses the 21066 processor running at 166MHz or 233MHz. It 321 is a baby-AT size, and runs from a standard PC power supply. It has 322 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are 323 2 versions, with either PS/2 or large DIN connectors for the 324 keyboard. 325 326config ALPHA_EV4 327 bool 328 depends on (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 329 default y if !ALPHA_LYNX 330 default y if !ALPHA_EV5 331 332config ALPHA_LCA 333 bool 334 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K 335 default y 336 337config ALPHA_APECS 338 bool 339 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL 340 default y 341 342config ALPHA_EB64P 343 bool 344 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH 345 default y 346 help 347 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, 348 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. 349 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI 350 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), 351 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. 352 Runs from standard PC power supply. 353 354config ALPHA_EV5 355 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX 356 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 357 358config ALPHA_CIA 359 bool 360 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 361 default y 362 363config ALPHA_EV56 364 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR 365 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA 366 367config ALPHA_EV56 368 prompt "EV56 CPU (speed >= 333MHz)?" 369 depends on ALPHA_NORITAKE || ALPHA_PRIMO 370 371config ALPHA_EV56 372 prompt "EV56 CPU (speed >= 400MHz)?" 373 depends on ALPHA_RAWHIDE 374 375config ALPHA_PRIMO 376 bool "EV5 CPU daughtercard (model 5/xxx)?" 377 depends on ALPHA_NORITAKE || ALPHA_MIKASA 378 help 379 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. 380 381config ALPHA_GAMMA 382 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_SABLE 383 depends on ALPHA_SABLE || ALPHA_LYNX 384 default ALPHA_LYNX 385 help 386 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. 387 388config ALPHA_T2 389 bool 390 depends on ALPHA_SABLE || ALPHA_LYNX 391 default y 392 393config ALPHA_PYXIS 394 bool 395 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN 396 default y 397 398config ALPHA_EV6 399 bool 400 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL 401 default y 402 403config ALPHA_TSUNAMI 404 bool 405 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER 406 default y 407 408config ALPHA_EV67 409 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER 410 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL 411 help 412 Is this a machine based on the EV67 core? If in doubt, select N here 413 and the machine will be treated as an EV6. 414 415config ALPHA_MCPCIA 416 bool 417 depends on ALPHA_RAWHIDE 418 default y 419 420config ALPHA_POLARIS 421 bool 422 depends on ALPHA_RX164 423 default y 424 425config ALPHA_IRONGATE 426 bool 427 depends on ALPHA_NAUTILUS 428 default y 429 430config GENERIC_HWEIGHT 431 bool 432 default y if !ALPHA_EV67 433 434config ALPHA_AVANTI 435 bool 436 depends on ALPHA_XL || ALPHA_AVANTI_CH 437 default y 438 help 439 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based 440 Alphas. Info at 441 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. 442 443config ALPHA_BROKEN_IRQ_MASK 444 bool 445 depends on ALPHA_GENERIC || ALPHA_PC164 446 default y 447 448config VGA_HOSE 449 bool 450 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) 451 default y 452 help 453 Support VGA on an arbitrary hose; needed for several platforms 454 which always have multiple hoses, and whose consoles support it. 455 456 457config ALPHA_QEMU 458 bool "Run under QEMU emulation" 459 depends on !ALPHA_GENERIC 460 help 461 Assume the presence of special features supported by QEMU PALcode 462 that reduce the overhead of system emulation. 463 464 Generic kernels will auto-detect QEMU. But when building a 465 system-specific kernel, the assumption is that we want to 466 eliminate as many runtime tests as possible. 467 468 If unsure, say N. 469 470 471config ALPHA_SRM 472 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 473 depends on TTY 474 default y if ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL 475 help 476 There are two different types of booting firmware on Alphas: SRM, 477 which is command line driven, and ARC, which uses menus and arrow 478 keys. Details about the Linux/Alpha booting process are contained in 479 the Linux/Alpha FAQ, accessible on the WWW from 480 <http://www.alphalinux.org/>. 481 482 The usual way to load Linux on an Alpha machine is to use MILO 483 (a bootloader that lets you pass command line parameters to the 484 kernel just like lilo does for the x86 architecture) which can be 485 loaded either from ARC or can be installed directly as a permanent 486 firmware replacement from floppy (which requires changing a certain 487 jumper on the motherboard). If you want to do either of these, say N 488 here. If MILO doesn't work on your system (true for Jensen 489 motherboards), you can bypass it altogether and boot Linux directly 490 from an SRM console; say Y here in order to do that. Note that you 491 won't be able to boot from an IDE disk using SRM. 492 493 If unsure, say N. 494 495config ARCH_MAY_HAVE_PC_FDC 496 def_bool y 497 498config SMP 499 bool "Symmetric multi-processing support" 500 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL 501 help 502 This enables support for systems with more than one CPU. If you have 503 a system with only one CPU, say N. If you have a system with more 504 than one CPU, say Y. 505 506 If you say N here, the kernel will run on uni- and multiprocessor 507 machines, but will use only one CPU of a multiprocessor machine. If 508 you say Y here, the kernel will run on many, but not all, 509 uniprocessor machines. On a uniprocessor machine, the kernel 510 will run faster if you say N here. 511 512 See also the SMP-HOWTO available at 513 <https://www.tldp.org/docs.html#howto>. 514 515 If you don't know what to do here, say N. 516 517config NR_CPUS 518 int "Maximum number of CPUs (2-32)" 519 range 2 32 520 depends on SMP 521 default "32" if ALPHA_GENERIC || ALPHA_MARVEL 522 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL 523 help 524 MARVEL support can handle a maximum of 32 CPUs, all the others 525 with working support have a maximum of 4 CPUs. 526 527config ARCH_SPARSEMEM_ENABLE 528 bool "Sparse Memory Support" 529 help 530 Say Y to support efficient handling of discontiguous physical memory, 531 for systems that have huge holes in the physical address space. 532 533config ALPHA_WTINT 534 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC 535 default y if ALPHA_QEMU 536 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) 537 default n if !ALPHA_SRM && !ALPHA_GENERIC 538 default y if SMP 539 help 540 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU 541 to sleep until the next interrupt. This may reduce the power 542 consumed, and the heat produced by the computer. However, it has 543 the side effect of making the cycle counter unreliable as a timing 544 device across the sleep. 545 546 For emulation under QEMU, definitely say Y here, as we have other 547 mechanisms for measuring time than the cycle counter. 548 549 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running 550 MILO, sleep mode is not supported so you might as well say N here. 551 552 For SMP systems we cannot use the cycle counter for timing anyway, 553 so you might as well say Y here. 554 555 If unsure, say N. 556 557# LARGE_VMALLOC is racy, if you *really* need it then fix it first 558config ALPHA_LARGE_VMALLOC 559 bool 560 help 561 Process creation and other aspects of virtual memory management can 562 be streamlined if we restrict the kernel to one PGD for all vmalloc 563 allocations. This equates to about 8GB. 564 565 Under normal circumstances, this is so far and above what is needed 566 as to be laughable. However, there are certain applications (such 567 as benchmark-grade in-kernel web serving) that can make use of as 568 much vmalloc space as is available. 569 570 Say N unless you know you need gobs and gobs of vmalloc space. 571 572config VERBOSE_MCHECK 573 bool "Verbose Machine Checks" 574 575config VERBOSE_MCHECK_ON 576 int "Verbose Printing Mode (0=off, 1=on, 2=all)" 577 depends on VERBOSE_MCHECK 578 default 1 579 help 580 This option allows the default printing mode to be set, and then 581 possibly overridden by a boot command argument. 582 583 For example, if one wanted the option of printing verbose 584 machine checks, but wanted the default to be as if verbose 585 machine check printing was turned off, then one would choose 586 the printing mode to be 0. Then, upon reboot, one could add 587 the boot command line "verbose_mcheck=1" to get the normal 588 verbose machine check printing, or "verbose_mcheck=2" to get 589 the maximum information available. 590 591 Take the default (1) unless you want more control or more info. 592 593choice 594 prompt "Timer interrupt frequency (HZ)?" 595 default HZ_128 if ALPHA_QEMU 596 default HZ_1200 if ALPHA_RAWHIDE 597 default HZ_1024 598 help 599 The frequency at which timer interrupts occur. A high frequency 600 minimizes latency, whereas a low frequency minimizes overhead of 601 process accounting. The later effect is especially significant 602 when being run under QEMU. 603 604 Note that some Alpha hardware cannot change the interrupt frequency 605 of the timer. If unsure, say 1024 (or 1200 for Rawhide). 606 607 config HZ_32 608 bool "32 Hz" 609 config HZ_64 610 bool "64 Hz" 611 config HZ_128 612 bool "128 Hz" 613 config HZ_256 614 bool "256 Hz" 615 config HZ_1024 616 bool "1024 Hz" 617 config HZ_1200 618 bool "1200 Hz" 619endchoice 620 621config HZ 622 int 623 default 32 if HZ_32 624 default 64 if HZ_64 625 default 128 if HZ_128 626 default 256 if HZ_256 627 default 1200 if HZ_1200 628 default 1024 629 630config SRM_ENV 631 tristate "SRM environment through procfs" 632 depends on PROC_FS 633 help 634 If you enable this option, a subdirectory inside /proc called 635 /proc/srm_environment will give you access to the all important 636 SRM environment variables (those which have a name) and also 637 to all others (by their internal number). 638 639 SRM is something like a BIOS for Alpha machines. There are some 640 other such BIOSes, like AlphaBIOS, which this driver cannot 641 support (hey, that's not SRM!). 642 643 Despite the fact that this driver doesn't work on all Alphas (but 644 only on those which have SRM as their firmware), it's save to 645 build it even if your particular machine doesn't know about SRM 646 (or if you intend to compile a generic kernel). It will simply 647 not create those subdirectory in /proc (and give you some warning, 648 of course). 649 650 This driver is also available as a module and will be called 651 srm_env then. 652 653endmenu 654 655# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig 656# but we also need it if VGA_HOSE is set 657config DUMMY_CONSOLE 658 bool 659 depends on VGA_HOSE 660 default y 661