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 FORCE_PCI if !ALPHA_JENSEN
11 select ARCH_HAS_DMA_CLEAR_UNCACHED !! 11 select PCI_DOMAINS if PCI
12 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 12 select PCI_SYSCALL if PCI
13 select COMMON_CLK !! 13 select HAVE_AOUT
14 select OF !! 14 select HAVE_IDE
15 select OF_EARLY_FLATTREE !! 15 select HAVE_OPROFILE
16 select IRQ_DOMAIN !! 16 select HAVE_PCSPKR_PLATFORM
17 select GPIOLIB !! 17 select HAVE_PERF_EVENTS
18 select HAVE_ARCH_TRACEHOOK !! 18 select NEED_DMA_MAP_STATE
19 select SPARSE_IRQ !! 19 select NEED_SG_DMA_LENGTH
20 select GENERIC_IRQ_CHIP !! 20 select VIRT_TO_BUS
21 select GENERIC_IRQ_PROBE 21 select GENERIC_IRQ_PROBE
>> 22 select GENERIC_PCI_IOMAP if PCI
>> 23 select AUTO_IRQ_AFFINITY if SMP
22 select GENERIC_IRQ_SHOW 24 select GENERIC_IRQ_SHOW
23 select GENERIC_PCI_IOMAP !! 25 select ARCH_WANT_IPC_PARSE_VERSION
24 select GENERIC_IOREMAP !! 26 select ARCH_HAVE_NMI_SAFE_CMPXCHG
25 select GENERIC_CPU_DEVICES !! 27 select AUDIT_ARCH
26 select HAVE_PCI !! 28 select GENERIC_CLOCKEVENTS
27 select HAVE_UID16 !! 29 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 30 select GENERIC_SMP_IDLE_THREAD
>> 31 select GENERIC_STRNCPY_FROM_USER
>> 32 select GENERIC_STRNLEN_USER
>> 33 select HAVE_ARCH_AUDITSYSCALL
>> 34 select HAVE_MOD_ARCH_SPECIFIC
32 select MODULES_USE_ELF_RELA 35 select MODULES_USE_ELF_RELA
33 select HAVE_DEBUG_STACKOVERFLOW !! 36 select ODD_RT_SIGACTION
34 select OR1K_PIC !! 37 select OLD_SIGSUSPEND
35 select CPU_NO_EFFICIENT_FFS if !OPENRI !! 38 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
36 select ARCH_USE_QUEUED_RWLOCKS !! 39 select MMU_GATHER_NO_RANGE
37 select OMPIC if SMP !! 40 help
38 select PCI_DOMAINS_GENERIC if PCI !! 41 The Alpha is a 64-bit general-purpose processor designed and
39 select PCI_MSI if PCI !! 42 marketed by the Digital Equipment Corporation of blessed memory,
40 select ARCH_WANT_FRAME_POINTERS !! 43 now Hewlett-Packard. The Alpha Linux project has a home page at
41 select GENERIC_IRQ_MULTI_HANDLER !! 44 <http://www.alphalinux.org/>.
42 select MMU_GATHER_NO_RANGE if MMU <<
43 select TRACE_IRQFLAGS_SUPPORT <<
44 45
45 config CPU_BIG_ENDIAN !! 46 config 64BIT
46 def_bool y 47 def_bool y
47 48
48 config MMU 49 config MMU
49 def_bool y !! 50 bool
>> 51 default y
50 52
51 config GENERIC_HWEIGHT !! 53 config ARCH_HAS_ILOG2_U32
52 def_bool y !! 54 bool
>> 55 default n
53 56
54 config NO_IOPORT_MAP !! 57 config ARCH_HAS_ILOG2_U64
55 def_bool y !! 58 bool
>> 59 default n
56 60
57 # For now, use generic checksum functions !! 61 config GENERIC_CALIBRATE_DELAY
58 #These can be reimplemented in assembly later !! 62 bool
59 config GENERIC_CSUM !! 63 default y
60 def_bool y <<
61 64
62 config STACKTRACE_SUPPORT !! 65 config ZONE_DMA
63 def_bool y !! 66 bool
>> 67 default y
>> 68
>> 69 config GENERIC_ISA_DMA
>> 70 bool
>> 71 default y
>> 72
>> 73 config PGTABLE_LEVELS
>> 74 int
>> 75 default 3
64 76
65 config LOCKDEP_SUPPORT !! 77 config AUDIT_ARCH
66 def_bool y !! 78 bool
67 79
68 menu "Processor type and features" !! 80 menu "System setup"
69 81
70 choice 82 choice
71 prompt "Subarchitecture" !! 83 prompt "Alpha system type"
72 default OR1K_1200 !! 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
>> 94 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
>> 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
>> 99 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 100 EB164 EB164 21164 evaluation board
>> 101 EB64+ EB64+ 21064 evaluation board
>> 102 EB66 EB66 21066 evaluation board
>> 103 EB66+ EB66+ 21066 evaluation board
>> 104 Jensen DECpc 150, DEC 2000 models 300, 500
>> 105 LX164 AlphaPC164-LX
>> 106 Lynx AS 2100A
>> 107 Miata Personal Workstation 433/500/600 a/au
>> 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
>> 117 Shark DS 20L
>> 118 Takara Takara (OEM)
>> 119 Titan AlphaServer ES45 / DS25 / DS15
>> 120 Wildfire AlphaServer GS 40/80/160/320
73 121
74 config OR1K_1200 !! 122 If you don't know what to do, choose "generic".
75 bool "OR1200" !! 123
>> 124 config ALPHA_GENERIC
>> 125 bool "Generic"
>> 126 depends on TTY
>> 127 select HAVE_EISA
76 help 128 help
77 Generic OpenRISC 1200 architecture !! 129 A generic kernel will run on all supported Alpha hardware.
78 130
79 endchoice !! 131 config ALPHA_ALCOR
>> 132 bool "Alcor/Alpha-XLT"
>> 133 select HAVE_EISA
>> 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.
80 141
81 config DCACHE_WRITETHROUGH !! 142 config ALPHA_XL
82 bool "Have write through data caches" !! 143 bool "Alpha-XL"
83 default n <<
84 help 144 help
85 Select this if your implementation f !! 145 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. <<
89 146
90 If unsure say N here !! 147 config ALPHA_BOOK1
>> 148 bool "AlphaBook1"
>> 149 help
>> 150 Dec AlphaBook1/Burns Alpha-based laptops.
91 151
92 config OPENRISC_BUILTIN_DTB !! 152 config ALPHA_AVANTI_CH
93 string "Builtin DTB" !! 153 bool "Avanti"
94 default "" <<
95 154
96 menu "Class II Instructions" !! 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.
97 162
98 config OPENRISC_HAVE_INST_FF1 !! 163 config ALPHA_DP264
99 bool "Have instruction l.ff1" !! 164 bool "DP264"
100 default y <<
101 help 165 help
102 Select this if your implementation h !! 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.
103 169
104 config OPENRISC_HAVE_INST_FL1 !! 170 config ALPHA_EB164
105 bool "Have instruction l.fl1" !! 171 bool "EB164"
106 default y <<
107 help 172 help
108 Select this if your implementation h !! 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.
109 179
110 config OPENRISC_HAVE_INST_MUL !! 180 config ALPHA_EB64P_CH
111 bool "Have instruction l.mul for hardw !! 181 bool "EB64+"
112 default y !! 182
>> 183 config ALPHA_EB66
>> 184 bool "EB66"
113 help 185 help
114 Select this if your implementation h !! 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".
115 191
116 config OPENRISC_HAVE_INST_DIV !! 192 config ALPHA_EB66P
117 bool "Have instruction l.div for hardw !! 193 bool "EB66+"
118 default y <<
119 help 194 help
120 Select this if your implementation h !! 195 Later variant of the EB66 board.
121 196
122 config OPENRISC_HAVE_INST_CMOV !! 197 config ALPHA_EIGER
123 bool "Have instruction l.cmov for cond !! 198 bool "Eiger"
124 default n <<
125 help 199 help
126 This config enables gcc to generate !! 200 Apparently an obscure OEM single-board computer based on the
127 the kernel which in general will imp !! 201 Typhoon/Tsunami chipset family. Information on it is scanty.
128 binary size. <<
129 202
130 Select this if your implementation h !! 203 config ALPHA_JENSEN
131 l.cmov conistional move instruction. !! 204 bool "Jensen"
>> 205 depends on BROKEN
>> 206 select HAVE_EISA
>> 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.
132 214
133 Say N if you are unsure. !! 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>.
134 220
135 config OPENRISC_HAVE_INST_ROR !! 221 config ALPHA_LYNX
136 bool "Have instruction l.ror for rotat !! 222 bool "Lynx"
137 default n !! 223 select HAVE_EISA
138 help 224 help
139 This config enables gcc to generate !! 225 AlphaServer 2100A-based systems.
140 the kernel which in general will imp <<
141 binary size. <<
142 226
143 Select this if your implementation h !! 227 config ALPHA_MARVEL
144 l.ror rotate right instruction. !! 228 bool "Marvel"
>> 229 help
>> 230 AlphaServer ES47 / ES80 / GS1280 based on EV7.
145 231
146 Say N if you are unsure. !! 232 config ALPHA_MIATA
>> 233 bool "Miata"
>> 234 select HAVE_EISA
>> 235 help
>> 236 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 237 or 600au).
147 238
148 config OPENRISC_HAVE_INST_RORI !! 239 config ALPHA_MIKASA
149 bool "Have instruction l.rori for rota !! 240 bool "Mikasa"
150 default n <<
151 help 241 help
152 This config enables gcc to generate !! 242 AlphaServer 1000-based Alpha systems.
153 the kernel which in general will imp <<
154 binary size. <<
155 243
156 Select this if your implementation h !! 244 config ALPHA_NAUTILUS
157 l.rori rotate right with immediate i !! 245 bool "Nautilus"
>> 246 help
>> 247 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
158 248
159 Say N if you are unsure. !! 249 config ALPHA_NONAME_CH
>> 250 bool "Noname"
160 251
161 config OPENRISC_HAVE_INST_SEXT !! 252 config ALPHA_NORITAKE
162 bool "Have instructions l.ext* for sig !! 253 bool "Noritake"
163 default n !! 254 select HAVE_EISA
164 help 255 help
165 This config enables gcc to generate !! 256 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
166 the kernel which in general will imp !! 257 systems.
167 binary size. <<
168 258
169 Select this if your implementation h !! 259 config ALPHA_PC164
170 l.exths, l.extbs, l.exthz and l.extb !! 260 bool "PC164"
171 261
172 Say N if you are unsure. !! 262 config ALPHA_P2K
>> 263 bool "Platform2000"
173 264
174 endmenu !! 265 config ALPHA_RAWHIDE
>> 266 bool "Rawhide"
>> 267 select HAVE_EISA
>> 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>.
175 272
176 config NR_CPUS !! 273 config ALPHA_RUFFIAN
177 int "Maximum number of CPUs (2-32)" !! 274 bool "Ruffian"
178 range 2 32 !! 275 help
179 depends on SMP !! 276 Samsung APC164UX. There is a page on known problems and workarounds
180 default "2" !! 277 at <http://www.alphalinux.org/faq/FAQ-11.html>.
181 278
182 config SMP !! 279 config ALPHA_RX164
183 bool "Symmetric Multi-Processing suppo !! 280 bool "RX164"
>> 281
>> 282 config ALPHA_SX164
>> 283 bool "SX164"
>> 284
>> 285 config ALPHA_SABLE
>> 286 bool "Sable"
>> 287 select HAVE_EISA
184 help 288 help
185 This enables support for systems wit !! 289 Digital AlphaServer 2000 and 2100-based systems.
186 a system with only one CPU, say N. I <<
187 than one CPU, say Y. <<
188 290
189 If you don't know what to do here, s !! 291 config ALPHA_SHARK
>> 292 bool "Shark"
190 293
191 config FPU !! 294 config ALPHA_TAKARA
192 bool "FPU support" !! 295 bool "Takara"
193 default y <<
194 help 296 help
195 Say N here if you want to disable al !! 297 Alpha 11164-based OEM single-board computer.
196 in the kernel and reduce binary size <<
197 298
198 If you don't know what to do here, s !! 299 config ALPHA_TITAN
>> 300 bool "Titan"
>> 301 help
>> 302 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
199 303
200 source "kernel/Kconfig.hz" !! 304 config ALPHA_WILDFIRE
>> 305 bool "Wildfire"
>> 306 help
>> 307 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
201 308
202 config OPENRISC_NO_SPR_SR_DSX !! 309 endchoice
203 bool "use SPR_SR_DSX software emulatio !! 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
204 default y 316 default y
205 help 317 help
206 SPR_SR_DSX bit is status register bi !! 318 Find out whether you have ISA slots on your motherboard. ISA is the
207 the last exception has happened in d !! 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
>> 324 config ISA_DMA_API
>> 325 bool
>> 326 default y
208 327
209 OpenRISC architecture makes it optio !! 328 config ALPHA_NONAME
210 in hardware and the OR1200 does not !! 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
211 350
212 Say N here if you know that your Ope !! 351 config ALPHA_APECS
213 SPR_SR_DSX bit implemented. Say Y if !! 352 bool
>> 353 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 354 default y
214 355
215 config OPENRISC_HAVE_SHADOW_GPRS !! 356 config ALPHA_EB64P
216 bool "Support for shadow gpr files" if !! 357 bool
217 default y if SMP !! 358 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 359 default y
218 help 360 help
219 Say Y here if your OpenRISC processo !! 361 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
220 register files. They will in such ca !! 362 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
221 scratch reg storage on exception ent !! 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
222 384
223 On SMP systems, this feature is mand !! 385 config ALPHA_EV56
224 On a unicore system it's safe to say !! 386 prompt "EV56 CPU (speed >= 333MHz)?"
>> 387 depends on ALPHA_NORITAKE || ALPHA_PRIMO
225 388
226 config CMDLINE !! 389 config ALPHA_EV56
227 string "Default kernel command string" !! 390 prompt "EV56 CPU (speed >= 400MHz)?"
228 default "" !! 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
229 help 402 help
230 On some architectures there is curre !! 403 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
231 to pass arguments to the kernel. For !! 404
232 supply some command-line options at !! 405 config ALPHA_GAMMA
233 here. !! 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
234 414
235 menu "Debugging options" !! 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
>> 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
>> 452 config GENERIC_HWEIGHT
>> 453 bool
>> 454 default y if !ALPHA_EV67
>> 455
>> 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
236 469
237 config JUMP_UPON_UNHANDLED_EXCEPTION !! 470 config VGA_HOSE
238 bool "Try to die gracefully" !! 471 bool
>> 472 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
239 default y 473 default y
240 help 474 help
241 Now this puts kernel into infinite l !! 475 Support VGA on an arbitrary hose; needed for several platforms
242 your kernel crashes this doesn't hav !! 476 which always have multiple hoses, and whose consoles support it.
243 477
244 Say Y if you are unsure. <<
245 478
246 config OPENRISC_ESR_EXCEPTION_BUG_CHECK !! 479 config ALPHA_QEMU
247 bool "Check for possible ESR exception !! 480 bool "Run under QEMU emulation"
248 default n !! 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
>> 488 eliminate as many runtime tests as possible.
>> 489
>> 490 If unsure, say N.
>> 491
>> 492
>> 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
>> 495 depends on TTY
>> 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
>> 517 config ARCH_MAY_HAVE_PC_FDC
>> 518 def_bool y
>> 519
>> 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
>> 525 a system with only one CPU, say N. If you have a system with more
>> 526 than one CPU, say Y.
>> 527
>> 528 If you say N here, the kernel will run on uni- and multiprocessor
>> 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,
>> 531 uniprocessor machines. On a uniprocessor machine, the kernel
>> 532 will run faster if you say N here.
>> 533
>> 534 See also the SMP-HOWTO available at
>> 535 <http://www.tldp.org/docs.html#howto>.
>> 536
>> 537 If you don't know what to do here, say N.
>> 538
>> 539 config NR_CPUS
>> 540 int "Maximum number of CPUs (2-32)"
>> 541 range 2 32
>> 542 depends on SMP
>> 543 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 544 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
249 help 545 help
250 This option enables some checks that !! 546 MARVEL support can handle a maximum of 32 CPUs, all the others
251 in kernel. !! 547 with working support have a maximum of 4 CPUs.
252 548
253 Say N if you are unsure. !! 549 config ARCH_DISCONTIGMEM_ENABLE
>> 550 bool "Discontiguous Memory Support"
>> 551 help
>> 552 Say Y to support efficient handling of discontiguous physical memory,
>> 553 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 554 or have huge holes in the physical address space for other reasons.
>> 555 See <file:Documentation/vm/numa.rst> for more.
>> 556
>> 557 config NUMA
>> 558 bool "NUMA Support (EXPERIMENTAL)"
>> 559 depends on DISCONTIGMEM && BROKEN
>> 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
>> 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
>> 589 config NODES_SHIFT
>> 590 int
>> 591 default "7"
>> 592 depends on NEED_MULTIPLE_NODES
>> 593
>> 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.
254 627
255 endmenu !! 628 Take the default (1) unless you want more control or more info.
>> 629
>> 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
>> 658 config HZ
>> 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
>> 665 default 1024
>> 666
>> 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.
256 689
257 endmenu 690 endmenu
>> 691
>> 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
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