Commit | Line | Data |
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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | config ALPHA |
3 | bool | |
4 | default y | |
1571ed0c | 5 | select ARCH_MIGHT_HAVE_PC_PARPORT |
77b2d07a | 6 | select ARCH_MIGHT_HAVE_PC_SERIO |
87a4c375 | 7 | select ARCH_NO_PREEMPT |
7c703e54 | 8 | select ARCH_NO_SG_CHAIN |
8f8dcb3f | 9 | select ARCH_USE_CMPXCHG_LOCKREF |
eb01d42a | 10 | select FORCE_PCI if !ALPHA_JENSEN |
2eac9c2d | 11 | select PCI_DOMAINS if PCI |
20f1b79d | 12 | select PCI_SYSCALL if PCI |
e17c6d56 | 13 | select HAVE_AOUT |
ec7748b5 | 14 | select HAVE_IDE |
42d4b839 | 15 | select HAVE_OPROFILE |
8761f1ab | 16 | select HAVE_PCSPKR_PLATFORM |
a582e6f0 | 17 | select HAVE_PERF_EVENTS |
f616ab59 | 18 | select NEED_DMA_MAP_STATE |
86596f0a | 19 | select NEED_SG_DMA_LENGTH |
4febd95a | 20 | select VIRT_TO_BUS |
e27ec649 | 21 | select GENERIC_IRQ_PROBE |
eb01d42a | 22 | select GENERIC_PCI_IOMAP if PCI |
e27ec649 | 23 | select AUTO_IRQ_AFFINITY if SMP |
a6e120ed | 24 | select GENERIC_IRQ_SHOW |
c1d7e01d | 25 | select ARCH_WANT_IPC_PARSE_VERSION |
df013ffb | 26 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
a9302e84 | 27 | select AUDIT_ARCH |
a1659d6d | 28 | select GENERIC_CLOCKEVENTS |
6fd16ce5 | 29 | select GENERIC_CPU_VULNERABILITIES |
2ec9415c | 30 | select GENERIC_SMP_IDLE_THREAD |
f2db633d MC |
31 | select GENERIC_STRNCPY_FROM_USER |
32 | select GENERIC_STRNLEN_USER | |
7a017721 | 33 | select HAVE_ARCH_AUDITSYSCALL |
786d35d4 DH |
34 | select HAVE_MOD_ARCH_SPECIFIC |
35 | select MODULES_USE_ELF_RELA | |
eaca6eae | 36 | select ODD_RT_SIGACTION |
302627e9 | 37 | select OLD_SIGSUSPEND |
fff7fb0b | 38 | select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 |
6137fed0 | 39 | select MMU_GATHER_NO_RANGE |
1da177e4 LT |
40 | help |
41 | The Alpha is a 64-bit general-purpose processor designed and | |
42 | marketed by the Digital Equipment Corporation of blessed memory, | |
43 | now Hewlett-Packard. The Alpha Linux project has a home page at | |
44 | <http://www.alphalinux.org/>. | |
45 | ||
46 | config 64BIT | |
47 | def_bool y | |
48 | ||
49 | config MMU | |
50 | bool | |
51 | default y | |
52 | ||
f0d1b0b3 DH |
53 | config ARCH_HAS_ILOG2_U32 |
54 | bool | |
55 | default n | |
56 | ||
57 | config ARCH_HAS_ILOG2_U64 | |
58 | bool | |
59 | default n | |
60 | ||
1da177e4 LT |
61 | config GENERIC_CALIBRATE_DELAY |
62 | bool | |
63 | default y | |
64 | ||
5ac6da66 CL |
65 | config ZONE_DMA |
66 | bool | |
67 | default y | |
68 | ||
1da177e4 LT |
69 | config GENERIC_ISA_DMA |
70 | bool | |
71 | default y | |
72 | ||
f5d4547a KS |
73 | config PGTABLE_LEVELS |
74 | int | |
75 | default 3 | |
76 | ||
a9302e84 | 77 | config AUDIT_ARCH |
78 | bool | |
1da177e4 LT |
79 | |
80 | menu "System setup" | |
81 | ||
82 | choice | |
83 | prompt "Alpha system type" | |
84 | default ALPHA_GENERIC | |
85 | ---help--- | |
86 | This is the system type of your hardware. A "generic" kernel will | |
87 | run on any supported Alpha system. However, if you configure a | |
88 | kernel for your specific system, it will be faster and smaller. | |
89 | ||
90 | To find out what type of Alpha system you have, you may want to | |
91 | check out the Linux/Alpha FAQ, accessible on the WWW from | |
92 | <http://www.alphalinux.org/>. In summary: | |
93 | ||
d7083174 | 94 | Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 |
1da177e4 LT |
95 | Alpha-XL XL-233, XL-266 |
96 | AlphaBook1 Alpha laptop | |
97 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 | |
98 | Cabriolet AlphaPC64, AlphaPCI64 | |
d7083174 | 99 | DP264 DP264 / DS20 / ES40 / DS10 / DS10L |
1da177e4 LT |
100 | EB164 EB164 21164 evaluation board |
101 | EB64+ EB64+ 21064 evaluation board | |
102 | EB66 EB66 21066 evaluation board | |
103 | EB66+ EB66+ 21066 evaluation board | |
d7083174 | 104 | Jensen DECpc 150, DEC 2000 models 300, 500 |
1da177e4 LT |
105 | LX164 AlphaPC164-LX |
106 | Lynx AS 2100A | |
d7083174 | 107 | Miata Personal Workstation 433/500/600 a/au |
1da177e4 LT |
108 | Marvel AlphaServer ES47 / ES80 / GS1280 |
109 | Mikasa AS 1000 | |
110 | Noname AXPpci33, UDB (Multia) | |
111 | Noritake AS 1000A, AS 600A, AS 800 | |
112 | PC164 AlphaPC164 | |
113 | Rawhide AS 1200, AS 4000, AS 4100 | |
114 | Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX | |
115 | SX164 AlphaPC164-SX | |
116 | Sable AS 2000, AS 2100 | |
d7083174 JE |
117 | Shark DS 20L |
118 | Takara Takara (OEM) | |
119 | Titan AlphaServer ES45 / DS25 / DS15 | |
1da177e4 LT |
120 | Wildfire AlphaServer GS 40/80/160/320 |
121 | ||
122 | If you don't know what to do, choose "generic". | |
123 | ||
124 | config ALPHA_GENERIC | |
125 | bool "Generic" | |
4f73bc4d | 126 | depends on TTY |
6630a8e5 | 127 | select HAVE_EISA |
1da177e4 LT |
128 | help |
129 | A generic kernel will run on all supported Alpha hardware. | |
130 | ||
131 | config ALPHA_ALCOR | |
132 | bool "Alcor/Alpha-XLT" | |
6630a8e5 | 133 | select HAVE_EISA |
1da177e4 LT |
134 | help |
135 | For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data | |
136 | slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O | |
137 | Address, CIA) - a 383 pin plastic PGA). It provides a DRAM | |
138 | controller (256-bit memory bus) and a PCI interface. It also does | |
139 | all the work required to support an external Bcache and to maintain | |
140 | memory coherence when a PCI device DMAs into (or out of) memory. | |
141 | ||
142 | config ALPHA_XL | |
143 | bool "Alpha-XL" | |
144 | help | |
145 | XL-233 and XL-266-based Alpha systems. | |
146 | ||
147 | config ALPHA_BOOK1 | |
148 | bool "AlphaBook1" | |
149 | help | |
150 | Dec AlphaBook1/Burns Alpha-based laptops. | |
151 | ||
152 | config ALPHA_AVANTI_CH | |
153 | bool "Avanti" | |
154 | ||
155 | config ALPHA_CABRIOLET | |
156 | bool "Cabriolet" | |
157 | help | |
158 | Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now | |
159 | baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA | |
160 | slots, 4 PCI slots (one pair are on a shared slot), uses plug-in | |
161 | Bcache SIMMs. Requires power supply with 3.3V output. | |
162 | ||
163 | config ALPHA_DP264 | |
164 | bool "DP264" | |
165 | help | |
166 | Various 21264 systems with the tsunami core logic chipset. | |
167 | API Networks: 264DP, UP2000(+), CS20; | |
168 | Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. | |
169 | ||
170 | config ALPHA_EB164 | |
171 | bool "EB164" | |
172 | help | |
173 | EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has | |
174 | ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is | |
175 | shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in | |
176 | Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, | |
177 | MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized | |
178 | motherboard. Requires power supply with 3.3V output. | |
179 | ||
180 | config ALPHA_EB64P_CH | |
181 | bool "EB64+" | |
182 | ||
183 | config ALPHA_EB66 | |
184 | bool "EB66" | |
185 | help | |
186 | A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is | |
187 | identical to EB64+. Baby PC-AT size. Runs from standard PC power | |
188 | supply. The EB66 schematic was published as a marketing poster | |
189 | advertising the 21066 as "the first microprocessor in the world with | |
190 | embedded PCI". | |
191 | ||
192 | config ALPHA_EB66P | |
193 | bool "EB66+" | |
194 | help | |
195 | Later variant of the EB66 board. | |
196 | ||
197 | config ALPHA_EIGER | |
198 | bool "Eiger" | |
199 | help | |
200 | Apparently an obscure OEM single-board computer based on the | |
201 | Typhoon/Tsunami chipset family. Information on it is scanty. | |
202 | ||
203 | config ALPHA_JENSEN | |
204 | bool "Jensen" | |
1883c9f4 | 205 | depends on BROKEN |
6630a8e5 | 206 | select HAVE_EISA |
1da177e4 LT |
207 | help |
208 | DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one | |
209 | of the first-generation Alpha systems. A number of these systems | |
210 | seem to be available on the second- hand market. The Jensen is a | |
211 | floor-standing tower system which originally used a 150MHz 21064 It | |
212 | used programmable logic to interface a 486 EISA I/O bridge to the | |
213 | CPU. | |
214 | ||
215 | config ALPHA_LX164 | |
216 | bool "LX164" | |
217 | help | |
218 | A technical overview of this board is available at | |
219 | <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. | |
220 | ||
221 | config ALPHA_LYNX | |
222 | bool "Lynx" | |
6630a8e5 | 223 | select HAVE_EISA |
1da177e4 LT |
224 | help |
225 | AlphaServer 2100A-based systems. | |
226 | ||
227 | config ALPHA_MARVEL | |
228 | bool "Marvel" | |
229 | help | |
230 | AlphaServer ES47 / ES80 / GS1280 based on EV7. | |
231 | ||
232 | config ALPHA_MIATA | |
233 | bool "Miata" | |
6630a8e5 | 234 | select HAVE_EISA |
1da177e4 LT |
235 | help |
236 | The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, | |
ffc32d67 | 237 | or 600au). |
1da177e4 LT |
238 | |
239 | config ALPHA_MIKASA | |
240 | bool "Mikasa" | |
241 | help | |
242 | AlphaServer 1000-based Alpha systems. | |
243 | ||
244 | config ALPHA_NAUTILUS | |
245 | bool "Nautilus" | |
246 | help | |
247 | Alpha systems based on the AMD 751 & ALI 1543C chipsets. | |
248 | ||
249 | config ALPHA_NONAME_CH | |
250 | bool "Noname" | |
251 | ||
252 | config ALPHA_NORITAKE | |
253 | bool "Noritake" | |
6630a8e5 | 254 | select HAVE_EISA |
1da177e4 LT |
255 | help |
256 | AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based | |
257 | systems. | |
258 | ||
259 | config ALPHA_PC164 | |
260 | bool "PC164" | |
261 | ||
262 | config ALPHA_P2K | |
263 | bool "Platform2000" | |
264 | ||
265 | config ALPHA_RAWHIDE | |
266 | bool "Rawhide" | |
6630a8e5 | 267 | select HAVE_EISA |
1da177e4 LT |
268 | help |
269 | AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. | |
270 | See HOWTO at | |
271 | <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. | |
272 | ||
273 | config ALPHA_RUFFIAN | |
274 | bool "Ruffian" | |
275 | help | |
276 | Samsung APC164UX. There is a page on known problems and workarounds | |
277 | at <http://www.alphalinux.org/faq/FAQ-11.html>. | |
278 | ||
279 | config ALPHA_RX164 | |
280 | bool "RX164" | |
281 | ||
282 | config ALPHA_SX164 | |
283 | bool "SX164" | |
284 | ||
285 | config ALPHA_SABLE | |
286 | bool "Sable" | |
6630a8e5 | 287 | select HAVE_EISA |
1da177e4 LT |
288 | help |
289 | Digital AlphaServer 2000 and 2100-based systems. | |
290 | ||
291 | config ALPHA_SHARK | |
292 | bool "Shark" | |
293 | ||
294 | config ALPHA_TAKARA | |
295 | bool "Takara" | |
296 | help | |
297 | Alpha 11164-based OEM single-board computer. | |
298 | ||
299 | config ALPHA_TITAN | |
300 | bool "Titan" | |
301 | help | |
302 | AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. | |
303 | ||
304 | config ALPHA_WILDFIRE | |
305 | bool "Wildfire" | |
306 | help | |
307 | AlphaServer GS 40/80/160/320 SMP based on the EV67 core. | |
308 | ||
309 | endchoice | |
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. | |
314 | config 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 | ||
5cae841b AV |
324 | config ISA_DMA_API |
325 | bool | |
326 | default y | |
327 | ||
1da177e4 LT |
328 | config ALPHA_NONAME |
329 | bool | |
330 | depends on ALPHA_BOOK1 || ALPHA_NONAME_CH | |
331 | default y | |
332 | help | |
333 | The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia | |
334 | UDB). This design was produced by Digital's Technical OEM (TOEM) | |
335 | group. It uses the 21066 processor running at 166MHz or 233MHz. It | |
336 | is a baby-AT size, and runs from a standard PC power supply. It has | |
337 | 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are | |
338 | 2 versions, with either PS/2 or large DIN connectors for the | |
339 | keyboard. | |
340 | ||
341 | config ALPHA_EV4 | |
342 | bool | |
343 | 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 | |
344 | default y if !ALPHA_LYNX | |
345 | ||
346 | config ALPHA_LCA | |
347 | bool | |
348 | depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K | |
349 | default y | |
350 | ||
351 | config ALPHA_APECS | |
352 | bool | |
353 | depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL | |
354 | default y | |
355 | ||
356 | config ALPHA_EB64P | |
357 | bool | |
358 | depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH | |
359 | default y | |
360 | help | |
361 | Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, | |
362 | 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. | |
363 | ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI | |
364 | (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), | |
365 | SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. | |
366 | Runs from standard PC power supply. | |
367 | ||
368 | config ALPHA_EV5 | |
369 | bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX | |
370 | 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 | |
371 | ||
372 | config ALPHA_EV4 | |
373 | bool | |
374 | default y if ALPHA_LYNX && !ALPHA_EV5 | |
375 | ||
376 | config ALPHA_CIA | |
377 | bool | |
378 | 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 | |
379 | default y | |
380 | ||
381 | config ALPHA_EV56 | |
382 | bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR | |
383 | default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA | |
384 | ||
385 | config ALPHA_EV56 | |
386 | prompt "EV56 CPU (speed >= 333MHz)?" | |
060ec3d5 | 387 | depends on ALPHA_NORITAKE || ALPHA_PRIMO |
1da177e4 LT |
388 | |
389 | config ALPHA_EV56 | |
390 | prompt "EV56 CPU (speed >= 400MHz)?" | |
391 | depends on ALPHA_RAWHIDE | |
392 | ||
393 | config ALPHA_PRIMO | |
394 | bool "EV5 CPU daughtercard (model 5/xxx)?" | |
395 | depends on ALPHA_NORITAKE || ALPHA_MIKASA | |
396 | help | |
397 | Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. | |
398 | ||
399 | config ALPHA_GAMMA | |
400 | bool "EV5 CPU(s) (model 5/xxx)?" | |
401 | depends on ALPHA_SABLE | |
402 | help | |
403 | Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. | |
404 | ||
405 | config ALPHA_GAMMA | |
406 | bool | |
407 | depends on ALPHA_LYNX | |
408 | default y | |
409 | ||
410 | config ALPHA_T2 | |
411 | bool | |
412 | depends on ALPHA_SABLE || ALPHA_LYNX | |
413 | default y | |
414 | ||
415 | config ALPHA_PYXIS | |
416 | bool | |
417 | depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN | |
418 | default y | |
419 | ||
420 | config ALPHA_EV6 | |
421 | bool | |
422 | depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL | |
423 | default y | |
424 | ||
425 | config ALPHA_TSUNAMI | |
426 | bool | |
427 | depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER | |
428 | default y | |
429 | ||
430 | config ALPHA_EV67 | |
431 | bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER | |
432 | default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL | |
433 | help | |
434 | Is this a machine based on the EV67 core? If in doubt, select N here | |
435 | and the machine will be treated as an EV6. | |
436 | ||
1da177e4 LT |
437 | config ALPHA_MCPCIA |
438 | bool | |
439 | depends on ALPHA_RAWHIDE | |
440 | default y | |
441 | ||
442 | config ALPHA_POLARIS | |
443 | bool | |
444 | depends on ALPHA_RX164 | |
445 | default y | |
446 | ||
447 | config ALPHA_IRONGATE | |
448 | bool | |
449 | depends on ALPHA_NAUTILUS | |
450 | default y | |
451 | ||
f7c29678 AM |
452 | config GENERIC_HWEIGHT |
453 | bool | |
5e625b08 | 454 | default y if !ALPHA_EV67 |
f7c29678 | 455 | |
1da177e4 LT |
456 | config ALPHA_AVANTI |
457 | bool | |
458 | depends on ALPHA_XL || ALPHA_AVANTI_CH | |
459 | default y | |
460 | help | |
461 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based | |
462 | Alphas. Info at | |
463 | <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. | |
464 | ||
465 | config ALPHA_BROKEN_IRQ_MASK | |
466 | bool | |
467 | depends on ALPHA_GENERIC || ALPHA_PC164 | |
468 | default y | |
469 | ||
025a2215 JE |
470 | config VGA_HOSE |
471 | bool | |
dd7f1fe1 | 472 | depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) |
025a2215 JE |
473 | default y |
474 | help | |
475 | Support VGA on an arbitrary hose; needed for several platforms | |
476 | which always have multiple hoses, and whose consoles support it. | |
477 | ||
478 | ||
994dcf70 RH |
479 | config ALPHA_QEMU |
480 | bool "Run under QEMU emulation" | |
481 | depends on !ALPHA_GENERIC | |
482 | ---help--- | |
483 | Assume the presence of special features supported by QEMU PALcode | |
484 | that reduce the overhead of system emulation. | |
485 | ||
486 | Generic kernels will auto-detect QEMU. But when building a | |
487 | system-specific kernel, the assumption is that we want to | |
83fc61a5 | 488 | eliminate as many runtime tests as possible. |
994dcf70 RH |
489 | |
490 | If unsure, say N. | |
491 | ||
492 | ||
1da177e4 LT |
493 | config ALPHA_SRM |
494 | 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 | |
4f73bc4d | 495 | depends on TTY |
1da177e4 LT |
496 | 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 |
497 | ---help--- | |
498 | There are two different types of booting firmware on Alphas: SRM, | |
499 | which is command line driven, and ARC, which uses menus and arrow | |
500 | keys. Details about the Linux/Alpha booting process are contained in | |
501 | the Linux/Alpha FAQ, accessible on the WWW from | |
502 | <http://www.alphalinux.org/>. | |
503 | ||
504 | The usual way to load Linux on an Alpha machine is to use MILO | |
505 | (a bootloader that lets you pass command line parameters to the | |
506 | kernel just like lilo does for the x86 architecture) which can be | |
507 | loaded either from ARC or can be installed directly as a permanent | |
508 | firmware replacement from floppy (which requires changing a certain | |
509 | jumper on the motherboard). If you want to do either of these, say N | |
510 | here. If MILO doesn't work on your system (true for Jensen | |
511 | motherboards), you can bypass it altogether and boot Linux directly | |
512 | from an SRM console; say Y here in order to do that. Note that you | |
513 | won't be able to boot from an IDE disk using SRM. | |
514 | ||
515 | If unsure, say N. | |
516 | ||
a08b6b79 Z |
517 | config ARCH_MAY_HAVE_PC_FDC |
518 | def_bool y | |
519 | ||
1da177e4 LT |
520 | config SMP |
521 | bool "Symmetric multi-processing support" | |
522 | depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL | |
523 | ---help--- | |
524 | This enables support for systems with more than one CPU. If you have | |
4a474157 RG |
525 | a system with only one CPU, say N. If you have a system with more |
526 | than one CPU, say Y. | |
1da177e4 | 527 | |
4a474157 | 528 | If you say N here, the kernel will run on uni- and multiprocessor |
1da177e4 LT |
529 | machines, but will use only one CPU of a multiprocessor machine. If |
530 | you say Y here, the kernel will run on many, but not all, | |
4a474157 | 531 | uniprocessor machines. On a uniprocessor machine, the kernel |
1da177e4 LT |
532 | will run faster if you say N here. |
533 | ||
03502faa AB |
534 | See also the SMP-HOWTO available at |
535 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
536 | |
537 | If you don't know what to do here, say N. | |
538 | ||
1da177e4 | 539 | config NR_CPUS |
d7083174 JE |
540 | int "Maximum number of CPUs (2-32)" |
541 | range 2 32 | |
1da177e4 | 542 | depends on SMP |
d7083174 JE |
543 | default "32" if ALPHA_GENERIC || ALPHA_MARVEL |
544 | default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL | |
545 | help | |
546 | MARVEL support can handle a maximum of 32 CPUs, all the others | |
547 | with working support have a maximum of 4 CPUs. | |
1da177e4 | 548 | |
3f22ab27 | 549 | config ARCH_DISCONTIGMEM_ENABLE |
88d11bb9 | 550 | bool "Discontiguous Memory Support" |
1da177e4 | 551 | help |
fc31e838 | 552 | Say Y to support efficient handling of discontiguous physical memory, |
1da177e4 LT |
553 | for architectures which are either NUMA (Non-Uniform Memory Access) |
554 | or have huge holes in the physical address space for other reasons. | |
ad56b738 | 555 | See <file:Documentation/vm/numa.rst> for more. |
1da177e4 LT |
556 | |
557 | config NUMA | |
558 | bool "NUMA Support (EXPERIMENTAL)" | |
6df7c994 | 559 | depends on DISCONTIGMEM && BROKEN |
1da177e4 LT |
560 | help |
561 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
562 | Access). This option is for configuring high-end multiprocessor | |
563 | server machines. If in doubt, say N. | |
564 | ||
7f3bbb82 RH |
565 | config ALPHA_WTINT |
566 | bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC | |
567 | default y if ALPHA_QEMU | |
568 | default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) | |
569 | default n if !ALPHA_SRM && !ALPHA_GENERIC | |
570 | default y if SMP | |
571 | ---help--- | |
572 | The Wait for Interrupt (WTINT) PALcall attempts to place the CPU | |
573 | to sleep until the next interrupt. This may reduce the power | |
574 | consumed, and the heat produced by the computer. However, it has | |
575 | the side effect of making the cycle counter unreliable as a timing | |
576 | device across the sleep. | |
577 | ||
578 | For emulation under QEMU, definitely say Y here, as we have other | |
579 | mechanisms for measuring time than the cycle counter. | |
580 | ||
581 | For EV4 (but not LCA), EV5 and EV56 systems, or for systems running | |
582 | MILO, sleep mode is not supported so you might as well say N here. | |
583 | ||
584 | For SMP systems we cannot use the cycle counter for timing anyway, | |
585 | so you might as well say Y here. | |
586 | ||
587 | If unsure, say N. | |
588 | ||
c80d79d7 YG |
589 | config NODES_SHIFT |
590 | int | |
591 | default "7" | |
592 | depends on NEED_MULTIPLE_NODES | |
593 | ||
1da177e4 LT |
594 | # LARGE_VMALLOC is racy, if you *really* need it then fix it first |
595 | config ALPHA_LARGE_VMALLOC | |
596 | bool | |
597 | ---help--- | |
598 | Process creation and other aspects of virtual memory management can | |
599 | be streamlined if we restrict the kernel to one PGD for all vmalloc | |
600 | allocations. This equates to about 8GB. | |
601 | ||
602 | Under normal circumstances, this is so far and above what is needed | |
603 | as to be laughable. However, there are certain applications (such | |
604 | as benchmark-grade in-kernel web serving) that can make use of as | |
605 | much vmalloc space as is available. | |
606 | ||
607 | Say N unless you know you need gobs and gobs of vmalloc space. | |
608 | ||
609 | config VERBOSE_MCHECK | |
610 | bool "Verbose Machine Checks" | |
611 | ||
612 | config VERBOSE_MCHECK_ON | |
613 | int "Verbose Printing Mode (0=off, 1=on, 2=all)" | |
614 | depends on VERBOSE_MCHECK | |
615 | default 1 | |
616 | ---help--- | |
617 | This option allows the default printing mode to be set, and then | |
618 | possibly overridden by a boot command argument. | |
619 | ||
620 | For example, if one wanted the option of printing verbose | |
621 | machine checks, but wanted the default to be as if verbose | |
622 | machine check printing was turned off, then one would choose | |
623 | the printing mode to be 0. Then, upon reboot, one could add | |
624 | the boot command line "verbose_mcheck=1" to get the normal | |
625 | verbose machine check printing, or "verbose_mcheck=2" to get | |
626 | the maximum information available. | |
627 | ||
628 | Take the default (1) unless you want more control or more info. | |
629 | ||
fddd87d6 RH |
630 | choice |
631 | prompt "Timer interrupt frequency (HZ)?" | |
632 | default HZ_128 if ALPHA_QEMU | |
633 | default HZ_1200 if ALPHA_RAWHIDE | |
634 | default HZ_1024 | |
635 | ---help--- | |
636 | The frequency at which timer interrupts occur. A high frequency | |
637 | minimizes latency, whereas a low frequency minimizes overhead of | |
638 | process accounting. The later effect is especially significant | |
639 | when being run under QEMU. | |
640 | ||
641 | Note that some Alpha hardware cannot change the interrupt frequency | |
642 | of the timer. If unsure, say 1024 (or 1200 for Rawhide). | |
643 | ||
644 | config HZ_32 | |
645 | bool "32 Hz" | |
646 | config HZ_64 | |
647 | bool "64 Hz" | |
648 | config HZ_128 | |
649 | bool "128 Hz" | |
650 | config HZ_256 | |
651 | bool "256 Hz" | |
652 | config HZ_1024 | |
653 | bool "1024 Hz" | |
654 | config HZ_1200 | |
655 | bool "1200 Hz" | |
656 | endchoice | |
657 | ||
bdc80787 | 658 | config HZ |
fddd87d6 RH |
659 | int |
660 | default 32 if HZ_32 | |
661 | default 64 if HZ_64 | |
662 | default 128 if HZ_128 | |
663 | default 256 if HZ_256 | |
664 | default 1200 if HZ_1200 | |
bdc80787 PA |
665 | default 1024 |
666 | ||
1da177e4 LT |
667 | config SRM_ENV |
668 | tristate "SRM environment through procfs" | |
669 | depends on PROC_FS | |
670 | ---help--- | |
671 | If you enable this option, a subdirectory inside /proc called | |
672 | /proc/srm_environment will give you access to the all important | |
673 | SRM environment variables (those which have a name) and also | |
674 | to all others (by their internal number). | |
675 | ||
676 | SRM is something like a BIOS for Alpha machines. There are some | |
677 | other such BIOSes, like AlphaBIOS, which this driver cannot | |
678 | support (hey, that's not SRM!). | |
679 | ||
680 | Despite the fact that this driver doesn't work on all Alphas (but | |
681 | only on those which have SRM as their firmware), it's save to | |
682 | build it even if your particular machine doesn't know about SRM | |
683 | (or if you intend to compile a generic kernel). It will simply | |
684 | not create those subdirectory in /proc (and give you some warning, | |
685 | of course). | |
686 | ||
687 | This driver is also available as a module and will be called | |
688 | srm_env then. | |
689 | ||
1da177e4 LT |
690 | endmenu |
691 | ||
025a2215 JE |
692 | # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig |
693 | # but we also need it if VGA_HOSE is set | |
694 | config DUMMY_CONSOLE | |
695 | bool | |
696 | depends on VGA_HOSE | |
697 | default y |