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_32BIT_USTAT_F_TINODE
6 !! 6 select ARCH_MIGHT_HAVE_PC_PARPORT
7 config OPENRISC !! 7 select ARCH_MIGHT_HAVE_PC_SERIO
8 def_bool y !! 8 select ARCH_NO_PREEMPT
9 select ARCH_32BIT_OFF_T !! 9 select ARCH_NO_SG_CHAIN
10 select ARCH_HAS_DMA_SET_UNCACHED !! 10 select ARCH_USE_CMPXCHG_LOCKREF
11 select ARCH_HAS_DMA_CLEAR_UNCACHED !! 11 select DMA_OPS if PCI
12 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 12 select FORCE_PCI if !ALPHA_JENSEN
13 select COMMON_CLK !! 13 select PCI_DOMAINS if PCI
14 select OF !! 14 select PCI_SYSCALL if PCI
15 select OF_EARLY_FLATTREE !! 15 select HAVE_AOUT
16 select IRQ_DOMAIN !! 16 select HAVE_ASM_MODVERSIONS
17 select GPIOLIB !! 17 select HAVE_PCSPKR_PLATFORM
18 select HAVE_ARCH_TRACEHOOK !! 18 select HAVE_PERF_EVENTS
19 select SPARSE_IRQ !! 19 select NEED_DMA_MAP_STATE
20 select GENERIC_IRQ_CHIP !! 20 select NEED_SG_DMA_LENGTH
>> 21 select VIRT_TO_BUS
21 select GENERIC_IRQ_PROBE 22 select GENERIC_IRQ_PROBE
22 select GENERIC_IRQ_SHOW <<
23 select GENERIC_PCI_IOMAP 23 select GENERIC_PCI_IOMAP
24 select GENERIC_IOREMAP !! 24 select AUTO_IRQ_AFFINITY if SMP
25 select GENERIC_CPU_DEVICES !! 25 select GENERIC_IRQ_SHOW
26 select HAVE_PCI !! 26 select ARCH_WANT_IPC_PARSE_VERSION
27 select HAVE_UID16 !! 27 select ARCH_HAVE_NMI_SAFE_CMPXCHG
28 select HAVE_PAGE_SIZE_8KB !! 28 select AUDIT_ARCH
29 select GENERIC_ATOMIC64 !! 29 select GENERIC_CPU_VULNERABILITIES
30 select GENERIC_CLOCKEVENTS_BROADCAST <<
31 select GENERIC_SMP_IDLE_THREAD 30 select GENERIC_SMP_IDLE_THREAD
>> 31 select HAVE_ARCH_AUDITSYSCALL
>> 32 select HAVE_MOD_ARCH_SPECIFIC
32 select MODULES_USE_ELF_RELA 33 select MODULES_USE_ELF_RELA
33 select HAVE_DEBUG_STACKOVERFLOW !! 34 select ODD_RT_SIGACTION
34 select OR1K_PIC !! 35 select OLD_SIGSUSPEND
35 select CPU_NO_EFFICIENT_FFS if !OPENRI !! 36 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
36 select ARCH_USE_QUEUED_RWLOCKS !! 37 select MMU_GATHER_NO_RANGE
37 select OMPIC if SMP !! 38 select SET_FS
38 select PCI_DOMAINS_GENERIC if PCI !! 39 select SPARSEMEM_EXTREME if SPARSEMEM
39 select PCI_MSI if PCI !! 40 select ZONE_DMA
40 select ARCH_WANT_FRAME_POINTERS !! 41 help
41 select GENERIC_IRQ_MULTI_HANDLER !! 42 The Alpha is a 64-bit general-purpose processor designed and
42 select MMU_GATHER_NO_RANGE if MMU !! 43 marketed by the Digital Equipment Corporation of blessed memory,
43 select TRACE_IRQFLAGS_SUPPORT !! 44 now Hewlett-Packard. The Alpha Linux project has a home page at
>> 45 <http://www.alphalinux.org/>.
44 46
45 config CPU_BIG_ENDIAN !! 47 config 64BIT
46 def_bool y 48 def_bool y
47 49
48 config MMU 50 config MMU
49 def_bool y !! 51 bool
>> 52 default y
50 53
51 config GENERIC_HWEIGHT !! 54 config ARCH_HAS_ILOG2_U32
52 def_bool y !! 55 bool
>> 56 default n
53 57
54 config NO_IOPORT_MAP !! 58 config ARCH_HAS_ILOG2_U64
55 def_bool y !! 59 bool
>> 60 default n
56 61
57 # For now, use generic checksum functions !! 62 config GENERIC_CALIBRATE_DELAY
58 #These can be reimplemented in assembly later !! 63 bool
59 config GENERIC_CSUM !! 64 default y
60 def_bool y <<
61 65
62 config STACKTRACE_SUPPORT !! 66 config GENERIC_ISA_DMA
63 def_bool y !! 67 bool
>> 68 default y
>> 69
>> 70 config PGTABLE_LEVELS
>> 71 int
>> 72 default 3
64 73
65 config LOCKDEP_SUPPORT !! 74 config AUDIT_ARCH
66 def_bool y !! 75 bool
67 76
68 menu "Processor type and features" !! 77 menu "System setup"
69 78
70 choice 79 choice
71 prompt "Subarchitecture" !! 80 prompt "Alpha system type"
72 default OR1K_1200 !! 81 default ALPHA_GENERIC
>> 82 help
>> 83 This is the system type of your hardware. A "generic" kernel will
>> 84 run on any supported Alpha system. However, if you configure a
>> 85 kernel for your specific system, it will be faster and smaller.
>> 86
>> 87 To find out what type of Alpha system you have, you may want to
>> 88 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 89 <http://www.alphalinux.org/>. In summary:
>> 90
>> 91 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
>> 92 Alpha-XL XL-233, XL-266
>> 93 AlphaBook1 Alpha laptop
>> 94 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 95 Cabriolet AlphaPC64, AlphaPCI64
>> 96 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 97 EB164 EB164 21164 evaluation board
>> 98 EB64+ EB64+ 21064 evaluation board
>> 99 EB66 EB66 21066 evaluation board
>> 100 EB66+ EB66+ 21066 evaluation board
>> 101 Jensen DECpc 150, DEC 2000 models 300, 500
>> 102 LX164 AlphaPC164-LX
>> 103 Lynx AS 2100A
>> 104 Miata Personal Workstation 433/500/600 a/au
>> 105 Marvel AlphaServer ES47 / ES80 / GS1280
>> 106 Mikasa AS 1000
>> 107 Noname AXPpci33, UDB (Multia)
>> 108 Noritake AS 1000A, AS 600A, AS 800
>> 109 PC164 AlphaPC164
>> 110 Rawhide AS 1200, AS 4000, AS 4100
>> 111 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 112 SX164 AlphaPC164-SX
>> 113 Sable AS 2000, AS 2100
>> 114 Shark DS 20L
>> 115 Takara Takara (OEM)
>> 116 Titan AlphaServer ES45 / DS25 / DS15
>> 117 Wildfire AlphaServer GS 40/80/160/320
>> 118
>> 119 If you don't know what to do, choose "generic".
73 120
74 config OR1K_1200 !! 121 config ALPHA_GENERIC
75 bool "OR1200" !! 122 bool "Generic"
>> 123 depends on TTY
>> 124 select HAVE_EISA
76 help 125 help
77 Generic OpenRISC 1200 architecture !! 126 A generic kernel will run on all supported Alpha hardware.
78 127
79 endchoice !! 128 config ALPHA_ALCOR
>> 129 bool "Alcor/Alpha-XLT"
>> 130 select HAVE_EISA
>> 131 help
>> 132 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 133 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 134 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 135 controller (256-bit memory bus) and a PCI interface. It also does
>> 136 all the work required to support an external Bcache and to maintain
>> 137 memory coherence when a PCI device DMAs into (or out of) memory.
80 138
81 config DCACHE_WRITETHROUGH !! 139 config ALPHA_XL
82 bool "Have write through data caches" !! 140 bool "Alpha-XL"
83 default n <<
84 help 141 help
85 Select this if your implementation f !! 142 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. <<
89 143
90 If unsure say N here !! 144 config ALPHA_BOOK1
>> 145 bool "AlphaBook1"
>> 146 help
>> 147 Dec AlphaBook1/Burns Alpha-based laptops.
91 148
92 config OPENRISC_BUILTIN_DTB !! 149 config ALPHA_AVANTI_CH
93 string "Builtin DTB" !! 150 bool "Avanti"
94 default "" <<
95 151
96 menu "Class II Instructions" !! 152 config ALPHA_CABRIOLET
>> 153 bool "Cabriolet"
>> 154 help
>> 155 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
>> 156 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 157 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 158 Bcache SIMMs. Requires power supply with 3.3V output.
97 159
98 config OPENRISC_HAVE_INST_FF1 !! 160 config ALPHA_DP264
99 bool "Have instruction l.ff1" !! 161 bool "DP264"
100 default y <<
101 help 162 help
102 Select this if your implementation h !! 163 Various 21264 systems with the tsunami core logic chipset.
>> 164 API Networks: 264DP, UP2000(+), CS20;
>> 165 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
103 166
104 config OPENRISC_HAVE_INST_FL1 !! 167 config ALPHA_EB164
105 bool "Have instruction l.fl1" !! 168 bool "EB164"
106 default y <<
107 help 169 help
108 Select this if your implementation h !! 170 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
>> 171 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
>> 172 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
>> 173 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 174 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 175 motherboard. Requires power supply with 3.3V output.
109 176
110 config OPENRISC_HAVE_INST_MUL !! 177 config ALPHA_EB64P_CH
111 bool "Have instruction l.mul for hardw !! 178 bool "EB64+"
112 default y !! 179
>> 180 config ALPHA_EB66
>> 181 bool "EB66"
113 help 182 help
114 Select this if your implementation h !! 183 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
>> 184 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 185 supply. The EB66 schematic was published as a marketing poster
>> 186 advertising the 21066 as "the first microprocessor in the world with
>> 187 embedded PCI".
115 188
116 config OPENRISC_HAVE_INST_DIV !! 189 config ALPHA_EB66P
117 bool "Have instruction l.div for hardw !! 190 bool "EB66+"
118 default y <<
119 help 191 help
120 Select this if your implementation h !! 192 Later variant of the EB66 board.
121 193
122 config OPENRISC_HAVE_INST_CMOV !! 194 config ALPHA_EIGER
123 bool "Have instruction l.cmov for cond !! 195 bool "Eiger"
124 default n <<
125 help 196 help
126 This config enables gcc to generate !! 197 Apparently an obscure OEM single-board computer based on the
127 the kernel which in general will imp !! 198 Typhoon/Tsunami chipset family. Information on it is scanty.
128 binary size. <<
129 199
130 Select this if your implementation h !! 200 config ALPHA_JENSEN
131 l.cmov conistional move instruction. !! 201 bool "Jensen"
>> 202 select HAVE_EISA
>> 203 help
>> 204 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 205 of the first-generation Alpha systems. A number of these systems
>> 206 seem to be available on the second- hand market. The Jensen is a
>> 207 floor-standing tower system which originally used a 150MHz 21064 It
>> 208 used programmable logic to interface a 486 EISA I/O bridge to the
>> 209 CPU.
132 210
133 Say N if you are unsure. !! 211 config ALPHA_LX164
>> 212 bool "LX164"
>> 213 help
>> 214 A technical overview of this board is available at
>> 215 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
134 216
135 config OPENRISC_HAVE_INST_ROR !! 217 config ALPHA_LYNX
136 bool "Have instruction l.ror for rotat !! 218 bool "Lynx"
137 default n !! 219 select HAVE_EISA
138 help 220 help
139 This config enables gcc to generate !! 221 AlphaServer 2100A-based systems.
140 the kernel which in general will imp <<
141 binary size. <<
142 222
143 Select this if your implementation h !! 223 config ALPHA_MARVEL
144 l.ror rotate right instruction. !! 224 bool "Marvel"
>> 225 help
>> 226 AlphaServer ES47 / ES80 / GS1280 based on EV7.
145 227
146 Say N if you are unsure. !! 228 config ALPHA_MIATA
>> 229 bool "Miata"
>> 230 select HAVE_EISA
>> 231 help
>> 232 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 233 or 600au).
147 234
148 config OPENRISC_HAVE_INST_RORI !! 235 config ALPHA_MIKASA
149 bool "Have instruction l.rori for rota !! 236 bool "Mikasa"
150 default n <<
151 help 237 help
152 This config enables gcc to generate !! 238 AlphaServer 1000-based Alpha systems.
153 the kernel which in general will imp <<
154 binary size. <<
155 239
156 Select this if your implementation h !! 240 config ALPHA_NAUTILUS
157 l.rori rotate right with immediate i !! 241 bool "Nautilus"
>> 242 help
>> 243 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
158 244
159 Say N if you are unsure. !! 245 config ALPHA_NONAME_CH
>> 246 bool "Noname"
160 247
161 config OPENRISC_HAVE_INST_SEXT !! 248 config ALPHA_NORITAKE
162 bool "Have instructions l.ext* for sig !! 249 bool "Noritake"
163 default n !! 250 select HAVE_EISA
164 help 251 help
165 This config enables gcc to generate !! 252 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
166 the kernel which in general will imp !! 253 systems.
167 binary size. <<
168 254
169 Select this if your implementation h !! 255 config ALPHA_PC164
170 l.exths, l.extbs, l.exthz and l.extb !! 256 bool "PC164"
171 257
172 Say N if you are unsure. !! 258 config ALPHA_P2K
>> 259 bool "Platform2000"
173 260
174 endmenu !! 261 config ALPHA_RAWHIDE
>> 262 bool "Rawhide"
>> 263 select HAVE_EISA
>> 264 help
>> 265 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
>> 266 See HOWTO at
>> 267 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
175 268
176 config NR_CPUS !! 269 config ALPHA_RUFFIAN
177 int "Maximum number of CPUs (2-32)" !! 270 bool "Ruffian"
178 range 2 32 !! 271 help
179 depends on SMP !! 272 Samsung APC164UX. There is a page on known problems and workarounds
180 default "2" !! 273 at <http://www.alphalinux.org/faq/FAQ-11.html>.
181 274
182 config SMP !! 275 config ALPHA_RX164
183 bool "Symmetric Multi-Processing suppo !! 276 bool "RX164"
>> 277
>> 278 config ALPHA_SX164
>> 279 bool "SX164"
>> 280
>> 281 config ALPHA_SABLE
>> 282 bool "Sable"
>> 283 select HAVE_EISA
184 help 284 help
185 This enables support for systems wit !! 285 Digital AlphaServer 2000 and 2100-based systems.
186 a system with only one CPU, say N. I <<
187 than one CPU, say Y. <<
188 286
189 If you don't know what to do here, s !! 287 config ALPHA_SHARK
>> 288 bool "Shark"
190 289
191 config FPU !! 290 config ALPHA_TAKARA
192 bool "FPU support" !! 291 bool "Takara"
193 default y !! 292 help
>> 293 Alpha 11164-based OEM single-board computer.
>> 294
>> 295 config ALPHA_TITAN
>> 296 bool "Titan"
194 help 297 help
195 Say N here if you want to disable al !! 298 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
196 in the kernel and reduce binary size <<
197 299
198 If you don't know what to do here, s !! 300 config ALPHA_WILDFIRE
>> 301 bool "Wildfire"
>> 302 help
>> 303 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
199 304
200 source "kernel/Kconfig.hz" !! 305 endchoice
201 306
202 config OPENRISC_NO_SPR_SR_DSX !! 307 # clear all implied options (don't want default values for those):
203 bool "use SPR_SR_DSX software emulatio !! 308 # Most of these machines have ISA slots; not exactly sure which don't,
>> 309 # and this doesn't activate hordes of code, so do it always.
>> 310 config ISA
>> 311 bool
204 default y 312 default y
205 help 313 help
206 SPR_SR_DSX bit is status register bi !! 314 Find out whether you have ISA slots on your motherboard. ISA is the
207 the last exception has happened in d !! 315 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 316 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 317 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 318 newer boards don't support it. If you have ISA, say Y, otherwise N.
208 319
209 OpenRISC architecture makes it optio !! 320 config ISA_DMA_API
210 in hardware and the OR1200 does not !! 321 bool
>> 322 default y
211 323
212 Say N here if you know that your Ope !! 324 config ALPHA_NONAME
213 SPR_SR_DSX bit implemented. Say Y if !! 325 bool
>> 326 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
>> 327 default y
>> 328 help
>> 329 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
>> 330 UDB). This design was produced by Digital's Technical OEM (TOEM)
>> 331 group. It uses the 21066 processor running at 166MHz or 233MHz. It
>> 332 is a baby-AT size, and runs from a standard PC power supply. It has
>> 333 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
>> 334 2 versions, with either PS/2 or large DIN connectors for the
>> 335 keyboard.
>> 336
>> 337 config ALPHA_EV4
>> 338 bool
>> 339 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
>> 340 default y if !ALPHA_LYNX
>> 341
>> 342 config ALPHA_LCA
>> 343 bool
>> 344 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
>> 345 default y
214 346
215 config OPENRISC_HAVE_SHADOW_GPRS !! 347 config ALPHA_APECS
216 bool "Support for shadow gpr files" if !! 348 bool
217 default y if SMP !! 349 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 350 default y
>> 351
>> 352 config ALPHA_EB64P
>> 353 bool
>> 354 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 355 default y
218 help 356 help
219 Say Y here if your OpenRISC processo !! 357 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
220 register files. They will in such ca !! 358 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
221 scratch reg storage on exception ent !! 359 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 360 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 361 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 362 Runs from standard PC power supply.
>> 363
>> 364 config ALPHA_EV5
>> 365 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 366 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
>> 367
>> 368 config ALPHA_EV4
>> 369 bool
>> 370 default y if ALPHA_LYNX && !ALPHA_EV5
>> 371
>> 372 config ALPHA_CIA
>> 373 bool
>> 374 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
>> 375 default y
>> 376
>> 377 config ALPHA_EV56
>> 378 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 379 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
>> 380
>> 381 config ALPHA_EV56
>> 382 prompt "EV56 CPU (speed >= 333MHz)?"
>> 383 depends on ALPHA_NORITAKE || ALPHA_PRIMO
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 >= 400MHz)?"
>> 387 depends on ALPHA_RAWHIDE
225 388
226 config CMDLINE !! 389 config ALPHA_PRIMO
227 string "Default kernel command string" !! 390 bool "EV5 CPU daughtercard (model 5/xxx)?"
228 default "" !! 391 depends on ALPHA_NORITAKE || ALPHA_MIKASA
229 help 392 help
230 On some architectures there is curre !! 393 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. <<
234 394
235 menu "Debugging options" !! 395 config ALPHA_GAMMA
>> 396 bool "EV5 CPU(s) (model 5/xxx)?"
>> 397 depends on ALPHA_SABLE
>> 398 help
>> 399 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
>> 400
>> 401 config ALPHA_GAMMA
>> 402 bool
>> 403 depends on ALPHA_LYNX
>> 404 default y
236 405
237 config JUMP_UPON_UNHANDLED_EXCEPTION !! 406 config ALPHA_T2
238 bool "Try to die gracefully" !! 407 bool
>> 408 depends on ALPHA_SABLE || ALPHA_LYNX
>> 409 default y
>> 410
>> 411 config ALPHA_PYXIS
>> 412 bool
>> 413 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 414 default y
>> 415
>> 416 config ALPHA_EV6
>> 417 bool
>> 418 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 419 default y
>> 420
>> 421 config ALPHA_TSUNAMI
>> 422 bool
>> 423 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 424 default y
>> 425
>> 426 config ALPHA_EV67
>> 427 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
>> 428 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
>> 429 help
>> 430 Is this a machine based on the EV67 core? If in doubt, select N here
>> 431 and the machine will be treated as an EV6.
>> 432
>> 433 config ALPHA_MCPCIA
>> 434 bool
>> 435 depends on ALPHA_RAWHIDE
>> 436 default y
>> 437
>> 438 config ALPHA_POLARIS
>> 439 bool
>> 440 depends on ALPHA_RX164
>> 441 default y
>> 442
>> 443 config ALPHA_IRONGATE
>> 444 bool
>> 445 depends on ALPHA_NAUTILUS
>> 446 default y
>> 447
>> 448 config GENERIC_HWEIGHT
>> 449 bool
>> 450 default y if !ALPHA_EV67
>> 451
>> 452 config ALPHA_AVANTI
>> 453 bool
>> 454 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 455 default y
>> 456 help
>> 457 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
>> 458 Alphas. Info at
>> 459 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 460
>> 461 config ALPHA_BROKEN_IRQ_MASK
>> 462 bool
>> 463 depends on ALPHA_GENERIC || ALPHA_PC164
>> 464 default y
>> 465
>> 466 config VGA_HOSE
>> 467 bool
>> 468 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
239 default y 469 default y
240 help 470 help
241 Now this puts kernel into infinite l !! 471 Support VGA on an arbitrary hose; needed for several platforms
242 your kernel crashes this doesn't hav !! 472 which always have multiple hoses, and whose consoles support it.
243 473
244 Say Y if you are unsure. <<
245 474
246 config OPENRISC_ESR_EXCEPTION_BUG_CHECK !! 475 config ALPHA_QEMU
247 bool "Check for possible ESR exception !! 476 bool "Run under QEMU emulation"
248 default n !! 477 depends on !ALPHA_GENERIC
249 help 478 help
250 This option enables some checks that !! 479 Assume the presence of special features supported by QEMU PALcode
251 in kernel. !! 480 that reduce the overhead of system emulation.
252 481
253 Say N if you are unsure. !! 482 Generic kernels will auto-detect QEMU. But when building a
>> 483 system-specific kernel, the assumption is that we want to
>> 484 eliminate as many runtime tests as possible.
254 485
255 endmenu !! 486 If unsure, say N.
>> 487
>> 488
>> 489 config ALPHA_SRM
>> 490 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
>> 491 depends on TTY
>> 492 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
>> 493 help
>> 494 There are two different types of booting firmware on Alphas: SRM,
>> 495 which is command line driven, and ARC, which uses menus and arrow
>> 496 keys. Details about the Linux/Alpha booting process are contained in
>> 497 the Linux/Alpha FAQ, accessible on the WWW from
>> 498 <http://www.alphalinux.org/>.
>> 499
>> 500 The usual way to load Linux on an Alpha machine is to use MILO
>> 501 (a bootloader that lets you pass command line parameters to the
>> 502 kernel just like lilo does for the x86 architecture) which can be
>> 503 loaded either from ARC or can be installed directly as a permanent
>> 504 firmware replacement from floppy (which requires changing a certain
>> 505 jumper on the motherboard). If you want to do either of these, say N
>> 506 here. If MILO doesn't work on your system (true for Jensen
>> 507 motherboards), you can bypass it altogether and boot Linux directly
>> 508 from an SRM console; say Y here in order to do that. Note that you
>> 509 won't be able to boot from an IDE disk using SRM.
>> 510
>> 511 If unsure, say N.
>> 512
>> 513 config ARCH_MAY_HAVE_PC_FDC
>> 514 def_bool y
>> 515
>> 516 config SMP
>> 517 bool "Symmetric multi-processing support"
>> 518 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 519 help
>> 520 This enables support for systems with more than one CPU. If you have
>> 521 a system with only one CPU, say N. If you have a system with more
>> 522 than one CPU, say Y.
>> 523
>> 524 If you say N here, the kernel will run on uni- and multiprocessor
>> 525 machines, but will use only one CPU of a multiprocessor machine. If
>> 526 you say Y here, the kernel will run on many, but not all,
>> 527 uniprocessor machines. On a uniprocessor machine, the kernel
>> 528 will run faster if you say N here.
>> 529
>> 530 See also the SMP-HOWTO available at
>> 531 <https://www.tldp.org/docs.html#howto>.
>> 532
>> 533 If you don't know what to do here, say N.
>> 534
>> 535 config NR_CPUS
>> 536 int "Maximum number of CPUs (2-32)"
>> 537 range 2 32
>> 538 depends on SMP
>> 539 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 540 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
>> 541 help
>> 542 MARVEL support can handle a maximum of 32 CPUs, all the others
>> 543 with working support have a maximum of 4 CPUs.
>> 544
>> 545 config ARCH_SPARSEMEM_ENABLE
>> 546 bool "Sparse Memory Support"
>> 547 help
>> 548 Say Y to support efficient handling of discontiguous physical memory,
>> 549 for systems that have huge holes in the physical address space.
>> 550
>> 551 config ALPHA_WTINT
>> 552 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 553 default y if ALPHA_QEMU
>> 554 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 555 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 556 default y if SMP
>> 557 help
>> 558 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 559 to sleep until the next interrupt. This may reduce the power
>> 560 consumed, and the heat produced by the computer. However, it has
>> 561 the side effect of making the cycle counter unreliable as a timing
>> 562 device across the sleep.
>> 563
>> 564 For emulation under QEMU, definitely say Y here, as we have other
>> 565 mechanisms for measuring time than the cycle counter.
>> 566
>> 567 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
>> 568 MILO, sleep mode is not supported so you might as well say N here.
>> 569
>> 570 For SMP systems we cannot use the cycle counter for timing anyway,
>> 571 so you might as well say Y here.
>> 572
>> 573 If unsure, say N.
>> 574
>> 575 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 576 config ALPHA_LARGE_VMALLOC
>> 577 bool
>> 578 help
>> 579 Process creation and other aspects of virtual memory management can
>> 580 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 581 allocations. This equates to about 8GB.
>> 582
>> 583 Under normal circumstances, this is so far and above what is needed
>> 584 as to be laughable. However, there are certain applications (such
>> 585 as benchmark-grade in-kernel web serving) that can make use of as
>> 586 much vmalloc space as is available.
>> 587
>> 588 Say N unless you know you need gobs and gobs of vmalloc space.
>> 589
>> 590 config VERBOSE_MCHECK
>> 591 bool "Verbose Machine Checks"
>> 592
>> 593 config VERBOSE_MCHECK_ON
>> 594 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 595 depends on VERBOSE_MCHECK
>> 596 default 1
>> 597 help
>> 598 This option allows the default printing mode to be set, and then
>> 599 possibly overridden by a boot command argument.
>> 600
>> 601 For example, if one wanted the option of printing verbose
>> 602 machine checks, but wanted the default to be as if verbose
>> 603 machine check printing was turned off, then one would choose
>> 604 the printing mode to be 0. Then, upon reboot, one could add
>> 605 the boot command line "verbose_mcheck=1" to get the normal
>> 606 verbose machine check printing, or "verbose_mcheck=2" to get
>> 607 the maximum information available.
>> 608
>> 609 Take the default (1) unless you want more control or more info.
>> 610
>> 611 choice
>> 612 prompt "Timer interrupt frequency (HZ)?"
>> 613 default HZ_128 if ALPHA_QEMU
>> 614 default HZ_1200 if ALPHA_RAWHIDE
>> 615 default HZ_1024
>> 616 help
>> 617 The frequency at which timer interrupts occur. A high frequency
>> 618 minimizes latency, whereas a low frequency minimizes overhead of
>> 619 process accounting. The later effect is especially significant
>> 620 when being run under QEMU.
>> 621
>> 622 Note that some Alpha hardware cannot change the interrupt frequency
>> 623 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 624
>> 625 config HZ_32
>> 626 bool "32 Hz"
>> 627 config HZ_64
>> 628 bool "64 Hz"
>> 629 config HZ_128
>> 630 bool "128 Hz"
>> 631 config HZ_256
>> 632 bool "256 Hz"
>> 633 config HZ_1024
>> 634 bool "1024 Hz"
>> 635 config HZ_1200
>> 636 bool "1200 Hz"
>> 637 endchoice
>> 638
>> 639 config HZ
>> 640 int
>> 641 default 32 if HZ_32
>> 642 default 64 if HZ_64
>> 643 default 128 if HZ_128
>> 644 default 256 if HZ_256
>> 645 default 1200 if HZ_1200
>> 646 default 1024
>> 647
>> 648 config SRM_ENV
>> 649 tristate "SRM environment through procfs"
>> 650 depends on PROC_FS
>> 651 help
>> 652 If you enable this option, a subdirectory inside /proc called
>> 653 /proc/srm_environment will give you access to the all important
>> 654 SRM environment variables (those which have a name) and also
>> 655 to all others (by their internal number).
>> 656
>> 657 SRM is something like a BIOS for Alpha machines. There are some
>> 658 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 659 support (hey, that's not SRM!).
>> 660
>> 661 Despite the fact that this driver doesn't work on all Alphas (but
>> 662 only on those which have SRM as their firmware), it's save to
>> 663 build it even if your particular machine doesn't know about SRM
>> 664 (or if you intend to compile a generic kernel). It will simply
>> 665 not create those subdirectory in /proc (and give you some warning,
>> 666 of course).
>> 667
>> 668 This driver is also available as a module and will be called
>> 669 srm_env then.
256 670
257 endmenu 671 endmenu
>> 672
>> 673 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 674 # but we also need it if VGA_HOSE is set
>> 675 config DUMMY_CONSOLE
>> 676 bool
>> 677 depends on VGA_HOSE
>> 678 default y
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