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