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 | |
96c0a6a7 | 5 | select ARCH_32BIT_USTAT_F_TINODE |
bd1912de | 6 | select ARCH_HAS_CURRENT_STACK_POINTER |
1571ed0c | 7 | select ARCH_MIGHT_HAVE_PC_PARPORT |
77b2d07a | 8 | select ARCH_MIGHT_HAVE_PC_SERIO |
87a4c375 | 9 | select ARCH_NO_PREEMPT |
7c703e54 | 10 | select ARCH_NO_SG_CHAIN |
8f8dcb3f | 11 | select ARCH_USE_CMPXCHG_LOCKREF |
2f9237d4 | 12 | select DMA_OPS if PCI |
eb01d42a | 13 | select FORCE_PCI if !ALPHA_JENSEN |
2eac9c2d | 14 | select PCI_DOMAINS if PCI |
20f1b79d | 15 | select PCI_SYSCALL if PCI |
2ff2b7ec | 16 | select HAVE_ASM_MODVERSIONS |
8761f1ab | 17 | select HAVE_PCSPKR_PLATFORM |
a582e6f0 | 18 | select HAVE_PERF_EVENTS |
f616ab59 | 19 | select NEED_DMA_MAP_STATE |
86596f0a | 20 | select NEED_SG_DMA_LENGTH |
e27ec649 | 21 | select GENERIC_IRQ_PROBE |
4fef6115 | 22 | select GENERIC_PCI_IOMAP |
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 |
6fd16ce5 | 28 | select GENERIC_CPU_VULNERABILITIES |
2ec9415c | 29 | select GENERIC_SMP_IDLE_THREAD |
fcbfe812 | 30 | select HAS_IOPORT |
7a017721 | 31 | select HAVE_ARCH_AUDITSYSCALL |
786d35d4 DH |
32 | select HAVE_MOD_ARCH_SPECIFIC |
33 | select MODULES_USE_ELF_RELA | |
eaca6eae | 34 | select ODD_RT_SIGACTION |
302627e9 | 35 | select OLD_SIGSUSPEND |
fff7fb0b | 36 | select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 |
6137fed0 | 37 | select MMU_GATHER_NO_RANGE |
36d40290 | 38 | select SPARSEMEM_EXTREME if SPARSEMEM |
63703f37 | 39 | select ZONE_DMA |
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 | ||
65 | config GENERIC_ISA_DMA | |
66 | bool | |
67 | default y | |
68 | ||
f5d4547a KS |
69 | config PGTABLE_LEVELS |
70 | int | |
71 | default 3 | |
72 | ||
a9302e84 | 73 | config AUDIT_ARCH |
74 | bool | |
1da177e4 LT |
75 | |
76 | menu "System setup" | |
77 | ||
78 | choice | |
79 | prompt "Alpha system type" | |
80 | default ALPHA_GENERIC | |
a7f7f624 | 81 | help |
1da177e4 LT |
82 | This is the system type of your hardware. A "generic" kernel will |
83 | run on any supported Alpha system. However, if you configure a | |
84 | kernel for your specific system, it will be faster and smaller. | |
85 | ||
86 | To find out what type of Alpha system you have, you may want to | |
87 | check out the Linux/Alpha FAQ, accessible on the WWW from | |
88 | <http://www.alphalinux.org/>. In summary: | |
89 | ||
d7083174 | 90 | Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366 |
1da177e4 LT |
91 | Alpha-XL XL-233, XL-266 |
92 | AlphaBook1 Alpha laptop | |
93 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400 | |
94 | Cabriolet AlphaPC64, AlphaPCI64 | |
d7083174 | 95 | DP264 DP264 / DS20 / ES40 / DS10 / DS10L |
1da177e4 LT |
96 | EB164 EB164 21164 evaluation board |
97 | EB64+ EB64+ 21064 evaluation board | |
98 | EB66 EB66 21066 evaluation board | |
99 | EB66+ EB66+ 21066 evaluation board | |
d7083174 | 100 | Jensen DECpc 150, DEC 2000 models 300, 500 |
1da177e4 LT |
101 | LX164 AlphaPC164-LX |
102 | Lynx AS 2100A | |
d7083174 | 103 | Miata Personal Workstation 433/500/600 a/au |
1da177e4 LT |
104 | Marvel AlphaServer ES47 / ES80 / GS1280 |
105 | Mikasa AS 1000 | |
106 | Noname AXPpci33, UDB (Multia) | |
107 | Noritake AS 1000A, AS 600A, AS 800 | |
108 | PC164 AlphaPC164 | |
109 | Rawhide AS 1200, AS 4000, AS 4100 | |
110 | Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX | |
111 | SX164 AlphaPC164-SX | |
112 | Sable AS 2000, AS 2100 | |
d7083174 JE |
113 | Shark DS 20L |
114 | Takara Takara (OEM) | |
115 | Titan AlphaServer ES45 / DS25 / DS15 | |
1da177e4 LT |
116 | Wildfire AlphaServer GS 40/80/160/320 |
117 | ||
118 | If you don't know what to do, choose "generic". | |
119 | ||
120 | config ALPHA_GENERIC | |
121 | bool "Generic" | |
4f73bc4d | 122 | depends on TTY |
6630a8e5 | 123 | select HAVE_EISA |
1da177e4 LT |
124 | help |
125 | A generic kernel will run on all supported Alpha hardware. | |
126 | ||
127 | config ALPHA_ALCOR | |
128 | bool "Alcor/Alpha-XLT" | |
6630a8e5 | 129 | select HAVE_EISA |
1da177e4 LT |
130 | help |
131 | For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data | |
132 | slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O | |
133 | Address, CIA) - a 383 pin plastic PGA). It provides a DRAM | |
134 | controller (256-bit memory bus) and a PCI interface. It also does | |
135 | all the work required to support an external Bcache and to maintain | |
136 | memory coherence when a PCI device DMAs into (or out of) memory. | |
137 | ||
138 | config ALPHA_XL | |
139 | bool "Alpha-XL" | |
140 | help | |
141 | XL-233 and XL-266-based Alpha systems. | |
142 | ||
143 | config ALPHA_BOOK1 | |
144 | bool "AlphaBook1" | |
145 | help | |
146 | Dec AlphaBook1/Burns Alpha-based laptops. | |
147 | ||
148 | config ALPHA_AVANTI_CH | |
149 | bool "Avanti" | |
150 | ||
151 | config ALPHA_CABRIOLET | |
152 | bool "Cabriolet" | |
153 | help | |
154 | Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now | |
155 | baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA | |
156 | slots, 4 PCI slots (one pair are on a shared slot), uses plug-in | |
157 | Bcache SIMMs. Requires power supply with 3.3V output. | |
158 | ||
159 | config ALPHA_DP264 | |
160 | bool "DP264" | |
161 | help | |
162 | Various 21264 systems with the tsunami core logic chipset. | |
163 | API Networks: 264DP, UP2000(+), CS20; | |
164 | Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40. | |
165 | ||
166 | config ALPHA_EB164 | |
167 | bool "EB164" | |
168 | help | |
169 | EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has | |
170 | ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is | |
171 | shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in | |
172 | Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD, | |
173 | MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized | |
174 | motherboard. Requires power supply with 3.3V output. | |
175 | ||
176 | config ALPHA_EB64P_CH | |
177 | bool "EB64+" | |
178 | ||
179 | config ALPHA_EB66 | |
180 | bool "EB66" | |
181 | help | |
182 | A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is | |
183 | identical to EB64+. Baby PC-AT size. Runs from standard PC power | |
184 | supply. The EB66 schematic was published as a marketing poster | |
185 | advertising the 21066 as "the first microprocessor in the world with | |
186 | embedded PCI". | |
187 | ||
188 | config ALPHA_EB66P | |
189 | bool "EB66+" | |
190 | help | |
191 | Later variant of the EB66 board. | |
192 | ||
193 | config ALPHA_EIGER | |
194 | bool "Eiger" | |
195 | help | |
196 | Apparently an obscure OEM single-board computer based on the | |
197 | Typhoon/Tsunami chipset family. Information on it is scanty. | |
198 | ||
199 | config ALPHA_JENSEN | |
200 | bool "Jensen" | |
6630a8e5 | 201 | select HAVE_EISA |
1da177e4 LT |
202 | help |
203 | DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one | |
204 | of the first-generation Alpha systems. A number of these systems | |
205 | seem to be available on the second- hand market. The Jensen is a | |
206 | floor-standing tower system which originally used a 150MHz 21064 It | |
207 | used programmable logic to interface a 486 EISA I/O bridge to the | |
208 | CPU. | |
209 | ||
210 | config ALPHA_LX164 | |
211 | bool "LX164" | |
212 | help | |
213 | A technical overview of this board is available at | |
214 | <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>. | |
215 | ||
216 | config ALPHA_LYNX | |
217 | bool "Lynx" | |
6630a8e5 | 218 | select HAVE_EISA |
1da177e4 LT |
219 | help |
220 | AlphaServer 2100A-based systems. | |
221 | ||
222 | config ALPHA_MARVEL | |
223 | bool "Marvel" | |
224 | help | |
225 | AlphaServer ES47 / ES80 / GS1280 based on EV7. | |
226 | ||
227 | config ALPHA_MIATA | |
228 | bool "Miata" | |
6630a8e5 | 229 | select HAVE_EISA |
1da177e4 LT |
230 | help |
231 | The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a, | |
ffc32d67 | 232 | or 600au). |
1da177e4 LT |
233 | |
234 | config ALPHA_MIKASA | |
235 | bool "Mikasa" | |
236 | help | |
237 | AlphaServer 1000-based Alpha systems. | |
238 | ||
239 | config ALPHA_NAUTILUS | |
240 | bool "Nautilus" | |
241 | help | |
242 | Alpha systems based on the AMD 751 & ALI 1543C chipsets. | |
243 | ||
244 | config ALPHA_NONAME_CH | |
245 | bool "Noname" | |
246 | ||
247 | config ALPHA_NORITAKE | |
248 | bool "Noritake" | |
6630a8e5 | 249 | select HAVE_EISA |
1da177e4 LT |
250 | help |
251 | AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based | |
252 | systems. | |
253 | ||
254 | config ALPHA_PC164 | |
255 | bool "PC164" | |
256 | ||
257 | config ALPHA_P2K | |
258 | bool "Platform2000" | |
259 | ||
260 | config ALPHA_RAWHIDE | |
261 | bool "Rawhide" | |
6630a8e5 | 262 | select HAVE_EISA |
1da177e4 LT |
263 | help |
264 | AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines. | |
265 | See HOWTO at | |
266 | <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>. | |
267 | ||
268 | config ALPHA_RUFFIAN | |
269 | bool "Ruffian" | |
270 | help | |
271 | Samsung APC164UX. There is a page on known problems and workarounds | |
272 | at <http://www.alphalinux.org/faq/FAQ-11.html>. | |
273 | ||
274 | config ALPHA_RX164 | |
275 | bool "RX164" | |
276 | ||
277 | config ALPHA_SX164 | |
278 | bool "SX164" | |
279 | ||
280 | config ALPHA_SABLE | |
281 | bool "Sable" | |
6630a8e5 | 282 | select HAVE_EISA |
1da177e4 LT |
283 | help |
284 | Digital AlphaServer 2000 and 2100-based systems. | |
285 | ||
286 | config ALPHA_SHARK | |
287 | bool "Shark" | |
288 | ||
289 | config ALPHA_TAKARA | |
290 | bool "Takara" | |
291 | help | |
292 | Alpha 11164-based OEM single-board computer. | |
293 | ||
294 | config ALPHA_TITAN | |
295 | bool "Titan" | |
296 | help | |
297 | AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset. | |
298 | ||
299 | config ALPHA_WILDFIRE | |
300 | bool "Wildfire" | |
301 | help | |
302 | AlphaServer GS 40/80/160/320 SMP based on the EV67 core. | |
303 | ||
304 | endchoice | |
305 | ||
306 | # clear all implied options (don't want default values for those): | |
307 | # Most of these machines have ISA slots; not exactly sure which don't, | |
308 | # and this doesn't activate hordes of code, so do it always. | |
309 | config ISA | |
310 | bool | |
311 | default y | |
312 | help | |
313 | Find out whether you have ISA slots on your motherboard. ISA is the | |
314 | name of a bus system, i.e. the way the CPU talks to the other stuff | |
315 | inside your box. Other bus systems are PCI, EISA, MicroChannel | |
316 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; | |
317 | newer boards don't support it. If you have ISA, say Y, otherwise N. | |
318 | ||
5cae841b AV |
319 | config ISA_DMA_API |
320 | bool | |
321 | default y | |
322 | ||
1da177e4 LT |
323 | config ALPHA_NONAME |
324 | bool | |
325 | depends on ALPHA_BOOK1 || ALPHA_NONAME_CH | |
326 | default y | |
327 | help | |
328 | The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia | |
329 | UDB). This design was produced by Digital's Technical OEM (TOEM) | |
330 | group. It uses the 21066 processor running at 166MHz or 233MHz. It | |
331 | is a baby-AT size, and runs from a standard PC power supply. It has | |
332 | 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are | |
333 | 2 versions, with either PS/2 or large DIN connectors for the | |
334 | keyboard. | |
335 | ||
336 | config ALPHA_EV4 | |
337 | bool | |
338 | 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 | |
339 | default y if !ALPHA_LYNX | |
340 | ||
341 | config ALPHA_LCA | |
342 | bool | |
343 | depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K | |
344 | default y | |
345 | ||
346 | config ALPHA_APECS | |
347 | bool | |
348 | depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL | |
349 | default y | |
350 | ||
351 | config ALPHA_EB64P | |
352 | bool | |
353 | depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH | |
354 | default y | |
355 | help | |
356 | Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA, | |
357 | 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs. | |
358 | ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI | |
359 | (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style), | |
360 | SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size. | |
361 | Runs from standard PC power supply. | |
362 | ||
363 | config ALPHA_EV5 | |
364 | bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX | |
365 | 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 | |
366 | ||
367 | config ALPHA_EV4 | |
368 | bool | |
369 | default y if ALPHA_LYNX && !ALPHA_EV5 | |
370 | ||
371 | config ALPHA_CIA | |
372 | bool | |
373 | 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 | |
374 | default y | |
375 | ||
376 | config ALPHA_EV56 | |
377 | bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR | |
378 | default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA | |
379 | ||
380 | config ALPHA_EV56 | |
381 | prompt "EV56 CPU (speed >= 333MHz)?" | |
060ec3d5 | 382 | depends on ALPHA_NORITAKE || ALPHA_PRIMO |
1da177e4 LT |
383 | |
384 | config ALPHA_EV56 | |
385 | prompt "EV56 CPU (speed >= 400MHz)?" | |
386 | depends on ALPHA_RAWHIDE | |
387 | ||
388 | config ALPHA_PRIMO | |
389 | bool "EV5 CPU daughtercard (model 5/xxx)?" | |
390 | depends on ALPHA_NORITAKE || ALPHA_MIKASA | |
391 | help | |
392 | Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx. | |
393 | ||
394 | config ALPHA_GAMMA | |
395 | bool "EV5 CPU(s) (model 5/xxx)?" | |
396 | depends on ALPHA_SABLE | |
397 | help | |
398 | Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx. | |
399 | ||
400 | config ALPHA_GAMMA | |
401 | bool | |
402 | depends on ALPHA_LYNX | |
403 | default y | |
404 | ||
405 | config ALPHA_T2 | |
406 | bool | |
407 | depends on ALPHA_SABLE || ALPHA_LYNX | |
408 | default y | |
409 | ||
410 | config ALPHA_PYXIS | |
411 | bool | |
412 | depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN | |
413 | default y | |
414 | ||
415 | config ALPHA_EV6 | |
416 | bool | |
417 | depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL | |
418 | default y | |
419 | ||
420 | config ALPHA_TSUNAMI | |
421 | bool | |
422 | depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER | |
423 | default y | |
424 | ||
425 | config ALPHA_EV67 | |
426 | bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER | |
427 | default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL | |
428 | help | |
429 | Is this a machine based on the EV67 core? If in doubt, select N here | |
430 | and the machine will be treated as an EV6. | |
431 | ||
1da177e4 LT |
432 | config ALPHA_MCPCIA |
433 | bool | |
434 | depends on ALPHA_RAWHIDE | |
435 | default y | |
436 | ||
437 | config ALPHA_POLARIS | |
438 | bool | |
439 | depends on ALPHA_RX164 | |
440 | default y | |
441 | ||
442 | config ALPHA_IRONGATE | |
443 | bool | |
444 | depends on ALPHA_NAUTILUS | |
445 | default y | |
446 | ||
f7c29678 AM |
447 | config GENERIC_HWEIGHT |
448 | bool | |
5e625b08 | 449 | default y if !ALPHA_EV67 |
f7c29678 | 450 | |
1da177e4 LT |
451 | config ALPHA_AVANTI |
452 | bool | |
453 | depends on ALPHA_XL || ALPHA_AVANTI_CH | |
454 | default y | |
455 | help | |
456 | Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based | |
457 | Alphas. Info at | |
458 | <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>. | |
459 | ||
460 | config ALPHA_BROKEN_IRQ_MASK | |
461 | bool | |
462 | depends on ALPHA_GENERIC || ALPHA_PC164 | |
463 | default y | |
464 | ||
025a2215 JE |
465 | config VGA_HOSE |
466 | bool | |
dd7f1fe1 | 467 | depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) |
025a2215 JE |
468 | default y |
469 | help | |
470 | Support VGA on an arbitrary hose; needed for several platforms | |
471 | which always have multiple hoses, and whose consoles support it. | |
472 | ||
473 | ||
994dcf70 RH |
474 | config ALPHA_QEMU |
475 | bool "Run under QEMU emulation" | |
476 | depends on !ALPHA_GENERIC | |
a7f7f624 | 477 | help |
994dcf70 RH |
478 | Assume the presence of special features supported by QEMU PALcode |
479 | that reduce the overhead of system emulation. | |
480 | ||
481 | Generic kernels will auto-detect QEMU. But when building a | |
482 | system-specific kernel, the assumption is that we want to | |
83fc61a5 | 483 | eliminate as many runtime tests as possible. |
994dcf70 RH |
484 | |
485 | If unsure, say N. | |
486 | ||
487 | ||
1da177e4 LT |
488 | config ALPHA_SRM |
489 | 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 | 490 | depends on TTY |
1da177e4 | 491 | 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 |
a7f7f624 | 492 | help |
1da177e4 LT |
493 | There are two different types of booting firmware on Alphas: SRM, |
494 | which is command line driven, and ARC, which uses menus and arrow | |
495 | keys. Details about the Linux/Alpha booting process are contained in | |
496 | the Linux/Alpha FAQ, accessible on the WWW from | |
497 | <http://www.alphalinux.org/>. | |
498 | ||
499 | The usual way to load Linux on an Alpha machine is to use MILO | |
500 | (a bootloader that lets you pass command line parameters to the | |
501 | kernel just like lilo does for the x86 architecture) which can be | |
502 | loaded either from ARC or can be installed directly as a permanent | |
503 | firmware replacement from floppy (which requires changing a certain | |
504 | jumper on the motherboard). If you want to do either of these, say N | |
505 | here. If MILO doesn't work on your system (true for Jensen | |
506 | motherboards), you can bypass it altogether and boot Linux directly | |
507 | from an SRM console; say Y here in order to do that. Note that you | |
508 | won't be able to boot from an IDE disk using SRM. | |
509 | ||
510 | If unsure, say N. | |
511 | ||
a08b6b79 Z |
512 | config ARCH_MAY_HAVE_PC_FDC |
513 | def_bool y | |
514 | ||
1da177e4 LT |
515 | config SMP |
516 | bool "Symmetric multi-processing support" | |
517 | depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL | |
a7f7f624 | 518 | help |
1da177e4 | 519 | This enables support for systems with more than one CPU. If you have |
4a474157 RG |
520 | a system with only one CPU, say N. If you have a system with more |
521 | than one CPU, say Y. | |
1da177e4 | 522 | |
4a474157 | 523 | If you say N here, the kernel will run on uni- and multiprocessor |
1da177e4 LT |
524 | machines, but will use only one CPU of a multiprocessor machine. If |
525 | you say Y here, the kernel will run on many, but not all, | |
4a474157 | 526 | uniprocessor machines. On a uniprocessor machine, the kernel |
1da177e4 LT |
527 | will run faster if you say N here. |
528 | ||
03502faa | 529 | See also the SMP-HOWTO available at |
a09c33cb | 530 | <https://www.tldp.org/docs.html#howto>. |
1da177e4 LT |
531 | |
532 | If you don't know what to do here, say N. | |
533 | ||
1da177e4 | 534 | config NR_CPUS |
d7083174 JE |
535 | int "Maximum number of CPUs (2-32)" |
536 | range 2 32 | |
1da177e4 | 537 | depends on SMP |
d7083174 JE |
538 | default "32" if ALPHA_GENERIC || ALPHA_MARVEL |
539 | default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL | |
540 | help | |
541 | MARVEL support can handle a maximum of 32 CPUs, all the others | |
8b3ebda6 | 542 | with working support have a maximum of 4 CPUs. |
1da177e4 | 543 | |
36d40290 MR |
544 | config ARCH_SPARSEMEM_ENABLE |
545 | bool "Sparse Memory Support" | |
546 | help | |
547 | Say Y to support efficient handling of discontiguous physical memory, | |
548 | for systems that have huge holes in the physical address space. | |
549 | ||
7f3bbb82 RH |
550 | config ALPHA_WTINT |
551 | bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC | |
552 | default y if ALPHA_QEMU | |
553 | default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA) | |
554 | default n if !ALPHA_SRM && !ALPHA_GENERIC | |
555 | default y if SMP | |
a7f7f624 | 556 | help |
7f3bbb82 RH |
557 | The Wait for Interrupt (WTINT) PALcall attempts to place the CPU |
558 | to sleep until the next interrupt. This may reduce the power | |
559 | consumed, and the heat produced by the computer. However, it has | |
560 | the side effect of making the cycle counter unreliable as a timing | |
561 | device across the sleep. | |
562 | ||
563 | For emulation under QEMU, definitely say Y here, as we have other | |
564 | mechanisms for measuring time than the cycle counter. | |
565 | ||
566 | For EV4 (but not LCA), EV5 and EV56 systems, or for systems running | |
567 | MILO, sleep mode is not supported so you might as well say N here. | |
568 | ||
569 | For SMP systems we cannot use the cycle counter for timing anyway, | |
570 | so you might as well say Y here. | |
571 | ||
572 | If unsure, say N. | |
573 | ||
1da177e4 LT |
574 | # LARGE_VMALLOC is racy, if you *really* need it then fix it first |
575 | config ALPHA_LARGE_VMALLOC | |
576 | bool | |
a7f7f624 | 577 | help |
1da177e4 LT |
578 | Process creation and other aspects of virtual memory management can |
579 | be streamlined if we restrict the kernel to one PGD for all vmalloc | |
580 | allocations. This equates to about 8GB. | |
581 | ||
582 | Under normal circumstances, this is so far and above what is needed | |
583 | as to be laughable. However, there are certain applications (such | |
584 | as benchmark-grade in-kernel web serving) that can make use of as | |
585 | much vmalloc space as is available. | |
586 | ||
587 | Say N unless you know you need gobs and gobs of vmalloc space. | |
588 | ||
589 | config VERBOSE_MCHECK | |
590 | bool "Verbose Machine Checks" | |
591 | ||
592 | config VERBOSE_MCHECK_ON | |
593 | int "Verbose Printing Mode (0=off, 1=on, 2=all)" | |
594 | depends on VERBOSE_MCHECK | |
595 | default 1 | |
a7f7f624 | 596 | help |
1da177e4 LT |
597 | This option allows the default printing mode to be set, and then |
598 | possibly overridden by a boot command argument. | |
599 | ||
600 | For example, if one wanted the option of printing verbose | |
601 | machine checks, but wanted the default to be as if verbose | |
602 | machine check printing was turned off, then one would choose | |
603 | the printing mode to be 0. Then, upon reboot, one could add | |
604 | the boot command line "verbose_mcheck=1" to get the normal | |
605 | verbose machine check printing, or "verbose_mcheck=2" to get | |
606 | the maximum information available. | |
607 | ||
608 | Take the default (1) unless you want more control or more info. | |
609 | ||
fddd87d6 RH |
610 | choice |
611 | prompt "Timer interrupt frequency (HZ)?" | |
612 | default HZ_128 if ALPHA_QEMU | |
613 | default HZ_1200 if ALPHA_RAWHIDE | |
614 | default HZ_1024 | |
a7f7f624 | 615 | help |
fddd87d6 RH |
616 | The frequency at which timer interrupts occur. A high frequency |
617 | minimizes latency, whereas a low frequency minimizes overhead of | |
618 | process accounting. The later effect is especially significant | |
619 | when being run under QEMU. | |
620 | ||
621 | Note that some Alpha hardware cannot change the interrupt frequency | |
622 | of the timer. If unsure, say 1024 (or 1200 for Rawhide). | |
623 | ||
624 | config HZ_32 | |
625 | bool "32 Hz" | |
626 | config HZ_64 | |
627 | bool "64 Hz" | |
628 | config HZ_128 | |
629 | bool "128 Hz" | |
630 | config HZ_256 | |
631 | bool "256 Hz" | |
632 | config HZ_1024 | |
633 | bool "1024 Hz" | |
634 | config HZ_1200 | |
635 | bool "1200 Hz" | |
636 | endchoice | |
637 | ||
bdc80787 | 638 | config HZ |
8b3ebda6 | 639 | int |
fddd87d6 RH |
640 | default 32 if HZ_32 |
641 | default 64 if HZ_64 | |
642 | default 128 if HZ_128 | |
643 | default 256 if HZ_256 | |
644 | default 1200 if HZ_1200 | |
bdc80787 PA |
645 | default 1024 |
646 | ||
1da177e4 LT |
647 | config SRM_ENV |
648 | tristate "SRM environment through procfs" | |
649 | depends on PROC_FS | |
a7f7f624 | 650 | help |
1da177e4 LT |
651 | If you enable this option, a subdirectory inside /proc called |
652 | /proc/srm_environment will give you access to the all important | |
653 | SRM environment variables (those which have a name) and also | |
654 | to all others (by their internal number). | |
655 | ||
656 | SRM is something like a BIOS for Alpha machines. There are some | |
657 | other such BIOSes, like AlphaBIOS, which this driver cannot | |
658 | support (hey, that's not SRM!). | |
659 | ||
660 | Despite the fact that this driver doesn't work on all Alphas (but | |
661 | only on those which have SRM as their firmware), it's save to | |
662 | build it even if your particular machine doesn't know about SRM | |
663 | (or if you intend to compile a generic kernel). It will simply | |
664 | not create those subdirectory in /proc (and give you some warning, | |
665 | of course). | |
666 | ||
667 | This driver is also available as a module and will be called | |
668 | srm_env then. | |
669 | ||
1da177e4 LT |
670 | endmenu |
671 | ||
025a2215 JE |
672 | # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig |
673 | # but we also need it if VGA_HOSE is set | |
674 | config DUMMY_CONSOLE | |
675 | bool | |
676 | depends on VGA_HOSE | |
677 | default y |