1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # !! 2 config ALPHA
3 # For a description of the syntax of this conf !! 3 bool
4 # see Documentation/kbuild/kconfig-language.rs !! 4 default y
5 # !! 5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 !! 6 select ARCH_MIGHT_HAVE_PC_SERIO
7 config OPENRISC !! 7 select ARCH_NO_PREEMPT
8 def_bool y !! 8 select ARCH_NO_SG_CHAIN
9 select ARCH_32BIT_OFF_T !! 9 select ARCH_USE_CMPXCHG_LOCKREF
10 select ARCH_HAS_DMA_SET_UNCACHED !! 10 select DMA_OPS if PCI
11 select ARCH_HAS_DMA_CLEAR_UNCACHED !! 11 select FORCE_PCI if !ALPHA_JENSEN
12 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 12 select PCI_DOMAINS if PCI
13 select COMMON_CLK !! 13 select PCI_SYSCALL if PCI
14 select OF !! 14 select HAVE_AOUT
15 select OF_EARLY_FLATTREE !! 15 select HAVE_ASM_MODVERSIONS
16 select IRQ_DOMAIN !! 16 select HAVE_IDE
17 select GPIOLIB !! 17 select HAVE_OPROFILE
18 select HAVE_ARCH_TRACEHOOK !! 18 select HAVE_PCSPKR_PLATFORM
19 select SPARSE_IRQ !! 19 select HAVE_PERF_EVENTS
20 select GENERIC_IRQ_CHIP !! 20 select NEED_DMA_MAP_STATE
>> 21 select NEED_SG_DMA_LENGTH
>> 22 select VIRT_TO_BUS
21 select GENERIC_IRQ_PROBE 23 select GENERIC_IRQ_PROBE
>> 24 select GENERIC_PCI_IOMAP if PCI
>> 25 select AUTO_IRQ_AFFINITY if SMP
22 select GENERIC_IRQ_SHOW 26 select GENERIC_IRQ_SHOW
23 select GENERIC_PCI_IOMAP !! 27 select ARCH_WANT_IPC_PARSE_VERSION
24 select GENERIC_IOREMAP !! 28 select ARCH_HAVE_NMI_SAFE_CMPXCHG
25 select GENERIC_CPU_DEVICES !! 29 select AUDIT_ARCH
26 select HAVE_PCI !! 30 select GENERIC_CLOCKEVENTS
27 select HAVE_UID16 !! 31 select GENERIC_CPU_VULNERABILITIES
28 select HAVE_PAGE_SIZE_8KB <<
29 select GENERIC_ATOMIC64 <<
30 select GENERIC_CLOCKEVENTS_BROADCAST <<
31 select GENERIC_SMP_IDLE_THREAD 32 select GENERIC_SMP_IDLE_THREAD
>> 33 select GENERIC_STRNCPY_FROM_USER
>> 34 select GENERIC_STRNLEN_USER
>> 35 select HAVE_ARCH_AUDITSYSCALL
>> 36 select HAVE_MOD_ARCH_SPECIFIC
32 select MODULES_USE_ELF_RELA 37 select MODULES_USE_ELF_RELA
33 select HAVE_DEBUG_STACKOVERFLOW !! 38 select ODD_RT_SIGACTION
34 select OR1K_PIC !! 39 select OLD_SIGSUSPEND
35 select CPU_NO_EFFICIENT_FFS if !OPENRI !! 40 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
36 select ARCH_USE_QUEUED_RWLOCKS !! 41 select MMU_GATHER_NO_RANGE
37 select OMPIC if SMP !! 42 select SET_FS
38 select PCI_DOMAINS_GENERIC if PCI !! 43 help
39 select PCI_MSI if PCI !! 44 The Alpha is a 64-bit general-purpose processor designed and
40 select ARCH_WANT_FRAME_POINTERS !! 45 marketed by the Digital Equipment Corporation of blessed memory,
41 select GENERIC_IRQ_MULTI_HANDLER !! 46 now Hewlett-Packard. The Alpha Linux project has a home page at
42 select MMU_GATHER_NO_RANGE if MMU !! 47 <http://www.alphalinux.org/>.
43 select TRACE_IRQFLAGS_SUPPORT <<
44 48
45 config CPU_BIG_ENDIAN !! 49 config 64BIT
46 def_bool y 50 def_bool y
47 51
48 config MMU 52 config MMU
49 def_bool y !! 53 bool
>> 54 default y
50 55
51 config GENERIC_HWEIGHT !! 56 config ARCH_HAS_ILOG2_U32
52 def_bool y !! 57 bool
>> 58 default n
53 59
54 config NO_IOPORT_MAP !! 60 config ARCH_HAS_ILOG2_U64
55 def_bool y !! 61 bool
>> 62 default n
56 63
57 # For now, use generic checksum functions !! 64 config GENERIC_CALIBRATE_DELAY
58 #These can be reimplemented in assembly later !! 65 bool
59 config GENERIC_CSUM !! 66 default y
60 def_bool y <<
61 67
62 config STACKTRACE_SUPPORT !! 68 config ZONE_DMA
63 def_bool y !! 69 bool
>> 70 default y
>> 71
>> 72 config GENERIC_ISA_DMA
>> 73 bool
>> 74 default y
>> 75
>> 76 config PGTABLE_LEVELS
>> 77 int
>> 78 default 3
64 79
65 config LOCKDEP_SUPPORT !! 80 config AUDIT_ARCH
66 def_bool y !! 81 bool
67 82
68 menu "Processor type and features" !! 83 menu "System setup"
69 84
70 choice 85 choice
71 prompt "Subarchitecture" !! 86 prompt "Alpha system type"
72 default OR1K_1200 !! 87 default ALPHA_GENERIC
>> 88 help
>> 89 This is the system type of your hardware. A "generic" kernel will
>> 90 run on any supported Alpha system. However, if you configure a
>> 91 kernel for your specific system, it will be faster and smaller.
>> 92
>> 93 To find out what type of Alpha system you have, you may want to
>> 94 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 95 <http://www.alphalinux.org/>. In summary:
>> 96
>> 97 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
>> 98 Alpha-XL XL-233, XL-266
>> 99 AlphaBook1 Alpha laptop
>> 100 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 101 Cabriolet AlphaPC64, AlphaPCI64
>> 102 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 103 EB164 EB164 21164 evaluation board
>> 104 EB64+ EB64+ 21064 evaluation board
>> 105 EB66 EB66 21066 evaluation board
>> 106 EB66+ EB66+ 21066 evaluation board
>> 107 Jensen DECpc 150, DEC 2000 models 300, 500
>> 108 LX164 AlphaPC164-LX
>> 109 Lynx AS 2100A
>> 110 Miata Personal Workstation 433/500/600 a/au
>> 111 Marvel AlphaServer ES47 / ES80 / GS1280
>> 112 Mikasa AS 1000
>> 113 Noname AXPpci33, UDB (Multia)
>> 114 Noritake AS 1000A, AS 600A, AS 800
>> 115 PC164 AlphaPC164
>> 116 Rawhide AS 1200, AS 4000, AS 4100
>> 117 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 118 SX164 AlphaPC164-SX
>> 119 Sable AS 2000, AS 2100
>> 120 Shark DS 20L
>> 121 Takara Takara (OEM)
>> 122 Titan AlphaServer ES45 / DS25 / DS15
>> 123 Wildfire AlphaServer GS 40/80/160/320
>> 124
>> 125 If you don't know what to do, choose "generic".
73 126
74 config OR1K_1200 !! 127 config ALPHA_GENERIC
75 bool "OR1200" !! 128 bool "Generic"
>> 129 depends on TTY
>> 130 select HAVE_EISA
76 help 131 help
77 Generic OpenRISC 1200 architecture !! 132 A generic kernel will run on all supported Alpha hardware.
78 133
79 endchoice !! 134 config ALPHA_ALCOR
>> 135 bool "Alcor/Alpha-XLT"
>> 136 select HAVE_EISA
>> 137 help
>> 138 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 139 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 140 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 141 controller (256-bit memory bus) and a PCI interface. It also does
>> 142 all the work required to support an external Bcache and to maintain
>> 143 memory coherence when a PCI device DMAs into (or out of) memory.
80 144
81 config DCACHE_WRITETHROUGH !! 145 config ALPHA_XL
82 bool "Have write through data caches" !! 146 bool "Alpha-XL"
83 default n <<
84 help 147 help
85 Select this if your implementation f !! 148 XL-233 and XL-266-based Alpha systems.
86 Selecting 'N' here will allow the ke <<
87 caches at relevant times. Most OpenR <<
88 through data caches. <<
89 149
90 If unsure say N here !! 150 config ALPHA_BOOK1
>> 151 bool "AlphaBook1"
>> 152 help
>> 153 Dec AlphaBook1/Burns Alpha-based laptops.
91 154
92 config OPENRISC_BUILTIN_DTB !! 155 config ALPHA_AVANTI_CH
93 string "Builtin DTB" !! 156 bool "Avanti"
94 default "" <<
95 157
96 menu "Class II Instructions" !! 158 config ALPHA_CABRIOLET
>> 159 bool "Cabriolet"
>> 160 help
>> 161 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
>> 162 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 163 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 164 Bcache SIMMs. Requires power supply with 3.3V output.
97 165
98 config OPENRISC_HAVE_INST_FF1 !! 166 config ALPHA_DP264
99 bool "Have instruction l.ff1" !! 167 bool "DP264"
100 default y <<
101 help 168 help
102 Select this if your implementation h !! 169 Various 21264 systems with the tsunami core logic chipset.
>> 170 API Networks: 264DP, UP2000(+), CS20;
>> 171 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
103 172
104 config OPENRISC_HAVE_INST_FL1 !! 173 config ALPHA_EB164
105 bool "Have instruction l.fl1" !! 174 bool "EB164"
106 default y <<
107 help 175 help
108 Select this if your implementation h !! 176 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
>> 177 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
>> 178 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
>> 179 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 180 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 181 motherboard. Requires power supply with 3.3V output.
109 182
110 config OPENRISC_HAVE_INST_MUL !! 183 config ALPHA_EB64P_CH
111 bool "Have instruction l.mul for hardw !! 184 bool "EB64+"
112 default y !! 185
>> 186 config ALPHA_EB66
>> 187 bool "EB66"
113 help 188 help
114 Select this if your implementation h !! 189 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
>> 190 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 191 supply. The EB66 schematic was published as a marketing poster
>> 192 advertising the 21066 as "the first microprocessor in the world with
>> 193 embedded PCI".
115 194
116 config OPENRISC_HAVE_INST_DIV !! 195 config ALPHA_EB66P
117 bool "Have instruction l.div for hardw !! 196 bool "EB66+"
118 default y <<
119 help 197 help
120 Select this if your implementation h !! 198 Later variant of the EB66 board.
121 199
122 config OPENRISC_HAVE_INST_CMOV !! 200 config ALPHA_EIGER
123 bool "Have instruction l.cmov for cond !! 201 bool "Eiger"
124 default n <<
125 help 202 help
126 This config enables gcc to generate !! 203 Apparently an obscure OEM single-board computer based on the
127 the kernel which in general will imp !! 204 Typhoon/Tsunami chipset family. Information on it is scanty.
128 binary size. <<
129 205
130 Select this if your implementation h !! 206 config ALPHA_JENSEN
131 l.cmov conistional move instruction. !! 207 bool "Jensen"
>> 208 depends on BROKEN
>> 209 select HAVE_EISA
>> 210 help
>> 211 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 212 of the first-generation Alpha systems. A number of these systems
>> 213 seem to be available on the second- hand market. The Jensen is a
>> 214 floor-standing tower system which originally used a 150MHz 21064 It
>> 215 used programmable logic to interface a 486 EISA I/O bridge to the
>> 216 CPU.
132 217
133 Say N if you are unsure. !! 218 config ALPHA_LX164
>> 219 bool "LX164"
>> 220 help
>> 221 A technical overview of this board is available at
>> 222 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
134 223
135 config OPENRISC_HAVE_INST_ROR !! 224 config ALPHA_LYNX
136 bool "Have instruction l.ror for rotat !! 225 bool "Lynx"
137 default n !! 226 select HAVE_EISA
138 help 227 help
139 This config enables gcc to generate !! 228 AlphaServer 2100A-based systems.
140 the kernel which in general will imp <<
141 binary size. <<
142 229
143 Select this if your implementation h !! 230 config ALPHA_MARVEL
144 l.ror rotate right instruction. !! 231 bool "Marvel"
>> 232 help
>> 233 AlphaServer ES47 / ES80 / GS1280 based on EV7.
145 234
146 Say N if you are unsure. !! 235 config ALPHA_MIATA
>> 236 bool "Miata"
>> 237 select HAVE_EISA
>> 238 help
>> 239 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 240 or 600au).
147 241
148 config OPENRISC_HAVE_INST_RORI !! 242 config ALPHA_MIKASA
149 bool "Have instruction l.rori for rota !! 243 bool "Mikasa"
150 default n <<
151 help 244 help
152 This config enables gcc to generate !! 245 AlphaServer 1000-based Alpha systems.
153 the kernel which in general will imp <<
154 binary size. <<
155 246
156 Select this if your implementation h !! 247 config ALPHA_NAUTILUS
157 l.rori rotate right with immediate i !! 248 bool "Nautilus"
>> 249 help
>> 250 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
158 251
159 Say N if you are unsure. !! 252 config ALPHA_NONAME_CH
>> 253 bool "Noname"
160 254
161 config OPENRISC_HAVE_INST_SEXT !! 255 config ALPHA_NORITAKE
162 bool "Have instructions l.ext* for sig !! 256 bool "Noritake"
163 default n !! 257 select HAVE_EISA
164 help 258 help
165 This config enables gcc to generate !! 259 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
166 the kernel which in general will imp !! 260 systems.
167 binary size. <<
168 261
169 Select this if your implementation h !! 262 config ALPHA_PC164
170 l.exths, l.extbs, l.exthz and l.extb !! 263 bool "PC164"
171 264
172 Say N if you are unsure. !! 265 config ALPHA_P2K
>> 266 bool "Platform2000"
173 267
174 endmenu !! 268 config ALPHA_RAWHIDE
>> 269 bool "Rawhide"
>> 270 select HAVE_EISA
>> 271 help
>> 272 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
>> 273 See HOWTO at
>> 274 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
175 275
176 config NR_CPUS !! 276 config ALPHA_RUFFIAN
177 int "Maximum number of CPUs (2-32)" !! 277 bool "Ruffian"
178 range 2 32 !! 278 help
179 depends on SMP !! 279 Samsung APC164UX. There is a page on known problems and workarounds
180 default "2" !! 280 at <http://www.alphalinux.org/faq/FAQ-11.html>.
181 281
182 config SMP !! 282 config ALPHA_RX164
183 bool "Symmetric Multi-Processing suppo !! 283 bool "RX164"
>> 284
>> 285 config ALPHA_SX164
>> 286 bool "SX164"
>> 287
>> 288 config ALPHA_SABLE
>> 289 bool "Sable"
>> 290 select HAVE_EISA
184 help 291 help
185 This enables support for systems wit !! 292 Digital AlphaServer 2000 and 2100-based systems.
186 a system with only one CPU, say N. I <<
187 than one CPU, say Y. <<
188 293
189 If you don't know what to do here, s !! 294 config ALPHA_SHARK
>> 295 bool "Shark"
190 296
191 config FPU !! 297 config ALPHA_TAKARA
192 bool "FPU support" !! 298 bool "Takara"
193 default y !! 299 help
>> 300 Alpha 11164-based OEM single-board computer.
>> 301
>> 302 config ALPHA_TITAN
>> 303 bool "Titan"
194 help 304 help
195 Say N here if you want to disable al !! 305 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
196 in the kernel and reduce binary size <<
197 306
198 If you don't know what to do here, s !! 307 config ALPHA_WILDFIRE
>> 308 bool "Wildfire"
>> 309 help
>> 310 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
199 311
200 source "kernel/Kconfig.hz" !! 312 endchoice
201 313
202 config OPENRISC_NO_SPR_SR_DSX !! 314 # clear all implied options (don't want default values for those):
203 bool "use SPR_SR_DSX software emulatio !! 315 # Most of these machines have ISA slots; not exactly sure which don't,
>> 316 # and this doesn't activate hordes of code, so do it always.
>> 317 config ISA
>> 318 bool
204 default y 319 default y
205 help 320 help
206 SPR_SR_DSX bit is status register bi !! 321 Find out whether you have ISA slots on your motherboard. ISA is the
207 the last exception has happened in d !! 322 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 323 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 324 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 325 newer boards don't support it. If you have ISA, say Y, otherwise N.
208 326
209 OpenRISC architecture makes it optio !! 327 config ISA_DMA_API
210 in hardware and the OR1200 does not !! 328 bool
>> 329 default y
211 330
212 Say N here if you know that your Ope !! 331 config ALPHA_NONAME
213 SPR_SR_DSX bit implemented. Say Y if !! 332 bool
>> 333 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
>> 334 default y
>> 335 help
>> 336 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
>> 337 UDB). This design was produced by Digital's Technical OEM (TOEM)
>> 338 group. It uses the 21066 processor running at 166MHz or 233MHz. It
>> 339 is a baby-AT size, and runs from a standard PC power supply. It has
>> 340 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
>> 341 2 versions, with either PS/2 or large DIN connectors for the
>> 342 keyboard.
>> 343
>> 344 config ALPHA_EV4
>> 345 bool
>> 346 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
>> 347 default y if !ALPHA_LYNX
>> 348
>> 349 config ALPHA_LCA
>> 350 bool
>> 351 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
>> 352 default y
214 353
215 config OPENRISC_HAVE_SHADOW_GPRS !! 354 config ALPHA_APECS
216 bool "Support for shadow gpr files" if !! 355 bool
217 default y if SMP !! 356 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 357 default y
>> 358
>> 359 config ALPHA_EB64P
>> 360 bool
>> 361 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 362 default y
218 help 363 help
219 Say Y here if your OpenRISC processo !! 364 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
220 register files. They will in such ca !! 365 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
221 scratch reg storage on exception ent !! 366 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 367 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 368 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 369 Runs from standard PC power supply.
>> 370
>> 371 config ALPHA_EV5
>> 372 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 373 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
>> 374
>> 375 config ALPHA_EV4
>> 376 bool
>> 377 default y if ALPHA_LYNX && !ALPHA_EV5
>> 378
>> 379 config ALPHA_CIA
>> 380 bool
>> 381 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
>> 382 default y
>> 383
>> 384 config ALPHA_EV56
>> 385 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 386 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
>> 387
>> 388 config ALPHA_EV56
>> 389 prompt "EV56 CPU (speed >= 333MHz)?"
>> 390 depends on ALPHA_NORITAKE || ALPHA_PRIMO
222 391
223 On SMP systems, this feature is mand !! 392 config ALPHA_EV56
224 On a unicore system it's safe to say !! 393 prompt "EV56 CPU (speed >= 400MHz)?"
>> 394 depends on ALPHA_RAWHIDE
225 395
226 config CMDLINE !! 396 config ALPHA_PRIMO
227 string "Default kernel command string" !! 397 bool "EV5 CPU daughtercard (model 5/xxx)?"
228 default "" !! 398 depends on ALPHA_NORITAKE || ALPHA_MIKASA
229 help 399 help
230 On some architectures there is curre !! 400 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
231 to pass arguments to the kernel. For <<
232 supply some command-line options at <<
233 here. <<
234 401
235 menu "Debugging options" !! 402 config ALPHA_GAMMA
>> 403 bool "EV5 CPU(s) (model 5/xxx)?"
>> 404 depends on ALPHA_SABLE
>> 405 help
>> 406 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
>> 407
>> 408 config ALPHA_GAMMA
>> 409 bool
>> 410 depends on ALPHA_LYNX
>> 411 default y
236 412
237 config JUMP_UPON_UNHANDLED_EXCEPTION !! 413 config ALPHA_T2
238 bool "Try to die gracefully" !! 414 bool
>> 415 depends on ALPHA_SABLE || ALPHA_LYNX
>> 416 default y
>> 417
>> 418 config ALPHA_PYXIS
>> 419 bool
>> 420 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 421 default y
>> 422
>> 423 config ALPHA_EV6
>> 424 bool
>> 425 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 426 default y
>> 427
>> 428 config ALPHA_TSUNAMI
>> 429 bool
>> 430 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 431 default y
>> 432
>> 433 config ALPHA_EV67
>> 434 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
>> 435 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
>> 436 help
>> 437 Is this a machine based on the EV67 core? If in doubt, select N here
>> 438 and the machine will be treated as an EV6.
>> 439
>> 440 config ALPHA_MCPCIA
>> 441 bool
>> 442 depends on ALPHA_RAWHIDE
>> 443 default y
>> 444
>> 445 config ALPHA_POLARIS
>> 446 bool
>> 447 depends on ALPHA_RX164
>> 448 default y
>> 449
>> 450 config ALPHA_IRONGATE
>> 451 bool
>> 452 depends on ALPHA_NAUTILUS
>> 453 default y
>> 454
>> 455 config GENERIC_HWEIGHT
>> 456 bool
>> 457 default y if !ALPHA_EV67
>> 458
>> 459 config ALPHA_AVANTI
>> 460 bool
>> 461 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 462 default y
>> 463 help
>> 464 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
>> 465 Alphas. Info at
>> 466 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 467
>> 468 config ALPHA_BROKEN_IRQ_MASK
>> 469 bool
>> 470 depends on ALPHA_GENERIC || ALPHA_PC164
>> 471 default y
>> 472
>> 473 config VGA_HOSE
>> 474 bool
>> 475 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
239 default y 476 default y
240 help 477 help
241 Now this puts kernel into infinite l !! 478 Support VGA on an arbitrary hose; needed for several platforms
242 your kernel crashes this doesn't hav !! 479 which always have multiple hoses, and whose consoles support it.
243 480
244 Say Y if you are unsure. <<
245 481
246 config OPENRISC_ESR_EXCEPTION_BUG_CHECK !! 482 config ALPHA_QEMU
247 bool "Check for possible ESR exception !! 483 bool "Run under QEMU emulation"
248 default n !! 484 depends on !ALPHA_GENERIC
249 help 485 help
250 This option enables some checks that !! 486 Assume the presence of special features supported by QEMU PALcode
251 in kernel. !! 487 that reduce the overhead of system emulation.
252 488
253 Say N if you are unsure. !! 489 Generic kernels will auto-detect QEMU. But when building a
>> 490 system-specific kernel, the assumption is that we want to
>> 491 eliminate as many runtime tests as possible.
254 492
255 endmenu !! 493 If unsure, say N.
>> 494
>> 495
>> 496 config ALPHA_SRM
>> 497 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
>> 498 depends on TTY
>> 499 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
>> 500 help
>> 501 There are two different types of booting firmware on Alphas: SRM,
>> 502 which is command line driven, and ARC, which uses menus and arrow
>> 503 keys. Details about the Linux/Alpha booting process are contained in
>> 504 the Linux/Alpha FAQ, accessible on the WWW from
>> 505 <http://www.alphalinux.org/>.
>> 506
>> 507 The usual way to load Linux on an Alpha machine is to use MILO
>> 508 (a bootloader that lets you pass command line parameters to the
>> 509 kernel just like lilo does for the x86 architecture) which can be
>> 510 loaded either from ARC or can be installed directly as a permanent
>> 511 firmware replacement from floppy (which requires changing a certain
>> 512 jumper on the motherboard). If you want to do either of these, say N
>> 513 here. If MILO doesn't work on your system (true for Jensen
>> 514 motherboards), you can bypass it altogether and boot Linux directly
>> 515 from an SRM console; say Y here in order to do that. Note that you
>> 516 won't be able to boot from an IDE disk using SRM.
>> 517
>> 518 If unsure, say N.
>> 519
>> 520 config ARCH_MAY_HAVE_PC_FDC
>> 521 def_bool y
>> 522
>> 523 config SMP
>> 524 bool "Symmetric multi-processing support"
>> 525 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 526 help
>> 527 This enables support for systems with more than one CPU. If you have
>> 528 a system with only one CPU, say N. If you have a system with more
>> 529 than one CPU, say Y.
>> 530
>> 531 If you say N here, the kernel will run on uni- and multiprocessor
>> 532 machines, but will use only one CPU of a multiprocessor machine. If
>> 533 you say Y here, the kernel will run on many, but not all,
>> 534 uniprocessor machines. On a uniprocessor machine, the kernel
>> 535 will run faster if you say N here.
>> 536
>> 537 See also the SMP-HOWTO available at
>> 538 <http://www.tldp.org/docs.html#howto>.
>> 539
>> 540 If you don't know what to do here, say N.
>> 541
>> 542 config NR_CPUS
>> 543 int "Maximum number of CPUs (2-32)"
>> 544 range 2 32
>> 545 depends on SMP
>> 546 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 547 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
>> 548 help
>> 549 MARVEL support can handle a maximum of 32 CPUs, all the others
>> 550 with working support have a maximum of 4 CPUs.
>> 551
>> 552 config ARCH_DISCONTIGMEM_ENABLE
>> 553 bool "Discontiguous Memory Support"
>> 554 help
>> 555 Say Y to support efficient handling of discontiguous physical memory,
>> 556 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 557 or have huge holes in the physical address space for other reasons.
>> 558 See <file:Documentation/vm/numa.rst> for more.
>> 559
>> 560 config NUMA
>> 561 bool "NUMA Support (EXPERIMENTAL)"
>> 562 depends on DISCONTIGMEM && BROKEN
>> 563 help
>> 564 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 565 Access). This option is for configuring high-end multiprocessor
>> 566 server machines. If in doubt, say N.
>> 567
>> 568 config ALPHA_WTINT
>> 569 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 570 default y if ALPHA_QEMU
>> 571 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 572 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 573 default y if SMP
>> 574 help
>> 575 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 576 to sleep until the next interrupt. This may reduce the power
>> 577 consumed, and the heat produced by the computer. However, it has
>> 578 the side effect of making the cycle counter unreliable as a timing
>> 579 device across the sleep.
>> 580
>> 581 For emulation under QEMU, definitely say Y here, as we have other
>> 582 mechanisms for measuring time than the cycle counter.
>> 583
>> 584 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
>> 585 MILO, sleep mode is not supported so you might as well say N here.
>> 586
>> 587 For SMP systems we cannot use the cycle counter for timing anyway,
>> 588 so you might as well say Y here.
>> 589
>> 590 If unsure, say N.
>> 591
>> 592 config NODES_SHIFT
>> 593 int
>> 594 default "7"
>> 595 depends on NEED_MULTIPLE_NODES
>> 596
>> 597 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 598 config ALPHA_LARGE_VMALLOC
>> 599 bool
>> 600 help
>> 601 Process creation and other aspects of virtual memory management can
>> 602 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 603 allocations. This equates to about 8GB.
>> 604
>> 605 Under normal circumstances, this is so far and above what is needed
>> 606 as to be laughable. However, there are certain applications (such
>> 607 as benchmark-grade in-kernel web serving) that can make use of as
>> 608 much vmalloc space as is available.
>> 609
>> 610 Say N unless you know you need gobs and gobs of vmalloc space.
>> 611
>> 612 config VERBOSE_MCHECK
>> 613 bool "Verbose Machine Checks"
>> 614
>> 615 config VERBOSE_MCHECK_ON
>> 616 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 617 depends on VERBOSE_MCHECK
>> 618 default 1
>> 619 help
>> 620 This option allows the default printing mode to be set, and then
>> 621 possibly overridden by a boot command argument.
>> 622
>> 623 For example, if one wanted the option of printing verbose
>> 624 machine checks, but wanted the default to be as if verbose
>> 625 machine check printing was turned off, then one would choose
>> 626 the printing mode to be 0. Then, upon reboot, one could add
>> 627 the boot command line "verbose_mcheck=1" to get the normal
>> 628 verbose machine check printing, or "verbose_mcheck=2" to get
>> 629 the maximum information available.
>> 630
>> 631 Take the default (1) unless you want more control or more info.
>> 632
>> 633 choice
>> 634 prompt "Timer interrupt frequency (HZ)?"
>> 635 default HZ_128 if ALPHA_QEMU
>> 636 default HZ_1200 if ALPHA_RAWHIDE
>> 637 default HZ_1024
>> 638 help
>> 639 The frequency at which timer interrupts occur. A high frequency
>> 640 minimizes latency, whereas a low frequency minimizes overhead of
>> 641 process accounting. The later effect is especially significant
>> 642 when being run under QEMU.
>> 643
>> 644 Note that some Alpha hardware cannot change the interrupt frequency
>> 645 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 646
>> 647 config HZ_32
>> 648 bool "32 Hz"
>> 649 config HZ_64
>> 650 bool "64 Hz"
>> 651 config HZ_128
>> 652 bool "128 Hz"
>> 653 config HZ_256
>> 654 bool "256 Hz"
>> 655 config HZ_1024
>> 656 bool "1024 Hz"
>> 657 config HZ_1200
>> 658 bool "1200 Hz"
>> 659 endchoice
>> 660
>> 661 config HZ
>> 662 int
>> 663 default 32 if HZ_32
>> 664 default 64 if HZ_64
>> 665 default 128 if HZ_128
>> 666 default 256 if HZ_256
>> 667 default 1200 if HZ_1200
>> 668 default 1024
>> 669
>> 670 config SRM_ENV
>> 671 tristate "SRM environment through procfs"
>> 672 depends on PROC_FS
>> 673 help
>> 674 If you enable this option, a subdirectory inside /proc called
>> 675 /proc/srm_environment will give you access to the all important
>> 676 SRM environment variables (those which have a name) and also
>> 677 to all others (by their internal number).
>> 678
>> 679 SRM is something like a BIOS for Alpha machines. There are some
>> 680 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 681 support (hey, that's not SRM!).
>> 682
>> 683 Despite the fact that this driver doesn't work on all Alphas (but
>> 684 only on those which have SRM as their firmware), it's save to
>> 685 build it even if your particular machine doesn't know about SRM
>> 686 (or if you intend to compile a generic kernel). It will simply
>> 687 not create those subdirectory in /proc (and give you some warning,
>> 688 of course).
>> 689
>> 690 This driver is also available as a module and will be called
>> 691 srm_env then.
256 692
257 endmenu 693 endmenu
>> 694
>> 695 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 696 # but we also need it if VGA_HOSE is set
>> 697 config DUMMY_CONSOLE
>> 698 bool
>> 699 depends on VGA_HOSE
>> 700 default y
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