1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 !! 2 config ALPHA
3 menu "UML-specific options" <<
4 <<
5 config UML <<
6 bool 3 bool
7 default y 4 default y
8 select ARCH_HAS_CPU_FINALIZE_INIT !! 5 select ARCH_32BIT_USTAT_F_TINODE
9 select ARCH_HAS_FORTIFY_SOURCE !! 6 select ARCH_HAS_CURRENT_STACK_POINTER
10 select ARCH_HAS_GCOV_PROFILE_ALL !! 7 select ARCH_MIGHT_HAVE_PC_PARPORT
11 select ARCH_HAS_KCOV !! 8 select ARCH_MIGHT_HAVE_PC_SERIO
12 select ARCH_HAS_STRNCPY_FROM_USER !! 9 select ARCH_NO_PREEMPT
13 select ARCH_HAS_STRNLEN_USER !! 10 select ARCH_NO_SG_CHAIN
14 select HAVE_ARCH_AUDITSYSCALL !! 11 select ARCH_USE_CMPXCHG_LOCKREF
15 select HAVE_ARCH_KASAN if X86_64 !! 12 select DMA_OPS if PCI
16 select HAVE_ARCH_KASAN_VMALLOC if HAVE !! 13 select FORCE_PCI if !ALPHA_JENSEN
17 select HAVE_ARCH_SECCOMP_FILTER !! 14 select PCI_DOMAINS if PCI
>> 15 select PCI_SYSCALL if PCI
18 select HAVE_ASM_MODVERSIONS 16 select HAVE_ASM_MODVERSIONS
19 select HAVE_UID16 !! 17 select HAVE_PCSPKR_PLATFORM
20 select HAVE_DEBUG_KMEMLEAK !! 18 select HAVE_PERF_EVENTS
21 select HAVE_DEBUG_BUGVERBOSE !! 19 select NEED_DMA_MAP_STATE
22 select HAVE_PAGE_SIZE_4KB !! 20 select NEED_SG_DMA_LENGTH
23 select NO_DMA if !UML_DMA_EMULATION !! 21 select GENERIC_IRQ_PROBE
24 select OF_EARLY_FLATTREE if OF !! 22 select GENERIC_PCI_IOMAP
>> 23 select AUTO_IRQ_AFFINITY if SMP
25 select GENERIC_IRQ_SHOW 24 select GENERIC_IRQ_SHOW
26 select GENERIC_CPU_DEVICES !! 25 select ARCH_WANT_IPC_PARSE_VERSION
27 select HAVE_GCC_PLUGINS !! 26 select ARCH_HAVE_NMI_SAFE_CMPXCHG
28 select ARCH_SUPPORTS_LTO_CLANG !! 27 select AUDIT_ARCH
29 select ARCH_SUPPORTS_LTO_CLANG_THIN !! 28 select GENERIC_CPU_VULNERABILITIES
30 select TRACE_IRQFLAGS_SUPPORT !! 29 select GENERIC_SMP_IDLE_THREAD
31 select TTY # Needed for line.c !! 30 select HAS_IOPORT
32 select HAVE_ARCH_VMAP_STACK !! 31 select HAVE_ARCH_AUDITSYSCALL
33 select HAVE_RUST !! 32 select HAVE_MOD_ARCH_SPECIFIC
34 select ARCH_HAS_UBSAN !! 33 select LOCK_MM_AND_FIND_VMA
>> 34 select MODULES_USE_ELF_RELA
>> 35 select ODD_RT_SIGACTION
>> 36 select OLD_SIGSUSPEND
>> 37 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
>> 38 select MMU_GATHER_NO_RANGE
>> 39 select SPARSEMEM_EXTREME if SPARSEMEM
>> 40 select ZONE_DMA
>> 41 help
>> 42 The Alpha is a 64-bit general-purpose processor designed and
>> 43 marketed by the Digital Equipment Corporation of blessed memory,
>> 44 now Hewlett-Packard. The Alpha Linux project has a home page at
>> 45 <http://www.alphalinux.org/>.
>> 46
>> 47 config 64BIT
>> 48 def_bool y
35 49
36 config MMU 50 config MMU
37 bool 51 bool
38 default y 52 default y
39 53
40 config UML_DMA_EMULATION !! 54 config ARCH_HAS_ILOG2_U32
>> 55 bool
>> 56 default n
>> 57
>> 58 config ARCH_HAS_ILOG2_U64
41 bool 59 bool
>> 60 default n
42 61
43 config NO_IOMEM !! 62 config GENERIC_CALIBRATE_DELAY
44 bool "disable IOMEM" if EXPERT !! 63 bool
45 depends on !INDIRECT_IOMEM <<
46 default y 64 default y
47 65
48 config UML_IOMEM_EMULATION !! 66 config GENERIC_ISA_DMA
49 bool 67 bool
50 select INDIRECT_IOMEM !! 68 default y
51 select HAS_IOPORT <<
52 select GENERIC_PCI_IOMAP <<
53 select GENERIC_IOMAP <<
54 select NO_GENERIC_PCI_IOPORT_MAP <<
55 69
56 config NO_IOPORT_MAP !! 70 config PGTABLE_LEVELS
57 def_bool !UML_IOMEM_EMULATION !! 71 int
>> 72 default 3
58 73
59 config ISA !! 74 config AUDIT_ARCH
60 bool 75 bool
61 76
62 config SBUS !! 77 menu "System setup"
>> 78
>> 79 choice
>> 80 prompt "Alpha system type"
>> 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".
>> 120
>> 121 config ALPHA_GENERIC
>> 122 bool "Generic"
>> 123 depends on TTY
>> 124 select HAVE_EISA
>> 125 help
>> 126 A generic kernel will run on all supported Alpha hardware.
>> 127
>> 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.
>> 138
>> 139 config ALPHA_XL
>> 140 bool "Alpha-XL"
>> 141 help
>> 142 XL-233 and XL-266-based Alpha systems.
>> 143
>> 144 config ALPHA_BOOK1
>> 145 bool "AlphaBook1"
>> 146 help
>> 147 Dec AlphaBook1/Burns Alpha-based laptops.
>> 148
>> 149 config ALPHA_AVANTI_CH
>> 150 bool "Avanti"
>> 151
>> 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.
>> 159
>> 160 config ALPHA_DP264
>> 161 bool "DP264"
>> 162 help
>> 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.
>> 166
>> 167 config ALPHA_EB164
>> 168 bool "EB164"
>> 169 help
>> 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.
>> 176
>> 177 config ALPHA_EB64P_CH
>> 178 bool "EB64+"
>> 179
>> 180 config ALPHA_EB66
>> 181 bool "EB66"
>> 182 help
>> 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".
>> 188
>> 189 config ALPHA_EB66P
>> 190 bool "EB66+"
>> 191 help
>> 192 Later variant of the EB66 board.
>> 193
>> 194 config ALPHA_EIGER
>> 195 bool "Eiger"
>> 196 help
>> 197 Apparently an obscure OEM single-board computer based on the
>> 198 Typhoon/Tsunami chipset family. Information on it is scanty.
>> 199
>> 200 config ALPHA_JENSEN
>> 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.
>> 210
>> 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>.
>> 216
>> 217 config ALPHA_LYNX
>> 218 bool "Lynx"
>> 219 select HAVE_EISA
>> 220 help
>> 221 AlphaServer 2100A-based systems.
>> 222
>> 223 config ALPHA_MARVEL
>> 224 bool "Marvel"
>> 225 help
>> 226 AlphaServer ES47 / ES80 / GS1280 based on EV7.
>> 227
>> 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).
>> 234
>> 235 config ALPHA_MIKASA
>> 236 bool "Mikasa"
>> 237 help
>> 238 AlphaServer 1000-based Alpha systems.
>> 239
>> 240 config ALPHA_NAUTILUS
>> 241 bool "Nautilus"
>> 242 help
>> 243 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
>> 244
>> 245 config ALPHA_NONAME_CH
>> 246 bool "Noname"
>> 247
>> 248 config ALPHA_NORITAKE
>> 249 bool "Noritake"
>> 250 select HAVE_EISA
>> 251 help
>> 252 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
>> 253 systems.
>> 254
>> 255 config ALPHA_PC164
>> 256 bool "PC164"
>> 257
>> 258 config ALPHA_P2K
>> 259 bool "Platform2000"
>> 260
>> 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>.
>> 268
>> 269 config ALPHA_RUFFIAN
>> 270 bool "Ruffian"
>> 271 help
>> 272 Samsung APC164UX. There is a page on known problems and workarounds
>> 273 at <http://www.alphalinux.org/faq/FAQ-11.html>.
>> 274
>> 275 config ALPHA_RX164
>> 276 bool "RX164"
>> 277
>> 278 config ALPHA_SX164
>> 279 bool "SX164"
>> 280
>> 281 config ALPHA_SABLE
>> 282 bool "Sable"
>> 283 select HAVE_EISA
>> 284 help
>> 285 Digital AlphaServer 2000 and 2100-based systems.
>> 286
>> 287 config ALPHA_SHARK
>> 288 bool "Shark"
>> 289
>> 290 config ALPHA_TAKARA
>> 291 bool "Takara"
>> 292 help
>> 293 Alpha 11164-based OEM single-board computer.
>> 294
>> 295 config ALPHA_TITAN
>> 296 bool "Titan"
>> 297 help
>> 298 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
>> 299
>> 300 config ALPHA_WILDFIRE
>> 301 bool "Wildfire"
>> 302 help
>> 303 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
>> 304
>> 305 endchoice
>> 306
>> 307 # clear all implied options (don't want default values for those):
>> 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
63 bool 311 bool
>> 312 default y
>> 313 help
>> 314 Find out whether you have ISA slots on your motherboard. ISA is the
>> 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.
64 319
65 config LOCKDEP_SUPPORT !! 320 config ISA_DMA_API
66 bool 321 bool
67 default y 322 default y
68 323
69 config STACKTRACE_SUPPORT !! 324 config ALPHA_NONAME
70 bool 325 bool
>> 326 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
71 default y 327 default y
72 select STACKTRACE !! 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.
73 336
74 config GENERIC_CALIBRATE_DELAY !! 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
75 bool 343 bool
>> 344 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
76 default y 345 default y
77 346
78 config HZ !! 347 config ALPHA_APECS
79 int !! 348 bool
80 default 100 !! 349 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 350 default y
81 351
82 config NR_CPUS !! 352 config ALPHA_EB64P
83 int !! 353 bool
84 range 1 1 !! 354 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
85 default 1 !! 355 default y
>> 356 help
>> 357 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
>> 358 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 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.
86 363
87 config ARCH_HAS_CACHE_LINE_SIZE !! 364 config ALPHA_EV5
88 def_bool y !! 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
89 367
90 source "arch/$(HEADER_ARCH)/um/Kconfig" !! 368 config ALPHA_EV4
>> 369 bool
>> 370 default y if ALPHA_LYNX && !ALPHA_EV5
91 371
92 config MAY_HAVE_RUNTIME_DEPS !! 372 config ALPHA_CIA
93 bool 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
>> 384
>> 385 config ALPHA_EV56
>> 386 prompt "EV56 CPU (speed >= 400MHz)?"
>> 387 depends on ALPHA_RAWHIDE
>> 388
>> 389 config ALPHA_PRIMO
>> 390 bool "EV5 CPU daughtercard (model 5/xxx)?"
>> 391 depends on ALPHA_NORITAKE || ALPHA_MIKASA
>> 392 help
>> 393 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
94 394
95 config STATIC_LINK !! 395 config ALPHA_GAMMA
96 bool "Force a static link" !! 396 bool "EV5 CPU(s) (model 5/xxx)?"
97 depends on CC_CAN_LINK_STATIC_NO_RUNTI !! 397 depends on ALPHA_SABLE
98 help 398 help
99 This option gives you the ability to !! 399 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
100 Normally, UML is linked as a shared <<
101 use in a chroot jail. So, if you in <<
102 you probably want to say Y here. <<
103 Additionally, this option enables us <<
104 2.75G) for UML. <<
105 400
106 NOTE: This option is incompatible wi !! 401 config ALPHA_GAMMA
107 depend on features that require bein !! 402 bool
>> 403 depends on ALPHA_LYNX
>> 404 default y
108 405
109 config LD_SCRIPT_STATIC !! 406 config ALPHA_T2
110 bool 407 bool
>> 408 depends on ALPHA_SABLE || ALPHA_LYNX
111 default y 409 default y
112 depends on STATIC_LINK <<
113 410
114 config LD_SCRIPT_DYN !! 411 config ALPHA_PYXIS
115 bool 412 bool
>> 413 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
116 default y 414 default y
117 depends on !LD_SCRIPT_STATIC <<
118 415
119 config LD_SCRIPT_DYN_RPATH !! 416 config ALPHA_EV6
120 bool "set rpath in the binary" if EXPE !! 417 bool
>> 418 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
121 default y 419 default y
122 depends on LD_SCRIPT_DYN <<
123 help <<
124 Add /lib (and /lib64 for 64-bit) to <<
125 explicitly. <<
126 420
127 You may need to turn this off if com !! 421 config ALPHA_TSUNAMI
128 that have their libraries in random !! 422 bool
129 might otherwise unexpected use libra !! 423 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
130 instead of the desired ones. !! 424 default y
131 425
132 config HOSTFS !! 426 config ALPHA_EV67
133 tristate "Host filesystem" !! 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
134 help 429 help
135 While the User-Mode Linux port uses !! 430 Is this a machine based on the EV67 core? If in doubt, select N here
136 booting and normal file access, this !! 431 and the machine will be treated as an EV6.
137 access files stored on the host. It <<
138 network connection between the Host <<
139 this might be: <<
140 432
141 mount none /tmp/fromhost -t hostfs - !! 433 config ALPHA_MCPCIA
>> 434 bool
>> 435 depends on ALPHA_RAWHIDE
>> 436 default y
142 437
143 where /tmp/fromhost is an empty dire !! 438 config ALPHA_POLARIS
144 /tmp/umlshare is a directory on the !! 439 bool
145 wishes to access. !! 440 depends on ALPHA_RX164
>> 441 default y
146 442
147 For more information, see !! 443 config ALPHA_IRONGATE
148 <http://user-mode-linux.sourceforge. !! 444 bool
>> 445 depends on ALPHA_NAUTILUS
>> 446 default y
149 447
150 If you'd like to be able to work wit !! 448 config GENERIC_HWEIGHT
151 say Y or M here; otherwise say N. !! 449 bool
>> 450 default y if !ALPHA_EV67
152 451
153 config MCONSOLE !! 452 config ALPHA_AVANTI
154 bool "Management console" !! 453 bool
155 depends on PROC_FS !! 454 depends on ALPHA_XL || ALPHA_AVANTI_CH
156 default y 455 default y
157 help 456 help
158 The user mode linux management conso !! 457 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
159 the kernel, somewhat like the i386 S !! 458 Alphas. Info at
160 a full-blown operating system runnin !! 459 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
161 instance, there is much greater flex <<
162 SysRq mechanism. <<
163 <<
164 If you answer 'Y' to this option, to <<
165 mconsole client (called uml_mconsole <<
166 2.4.5-9um and later (path /tools/mco <<
167 distribution RPM package in 2.4.6 an <<
168 <<
169 It is safe to say 'Y' here. <<
170 <<
171 config MAGIC_SYSRQ <<
172 bool "Magic SysRq key" <<
173 depends on MCONSOLE <<
174 help <<
175 If you say Y here, you will have som <<
176 if the system crashes for example du <<
177 will be able to flush the buffer cac <<
178 immediately or dump some status info <<
179 possible requests is provided. <<
180 <<
181 This is the feature normally accompl <<
182 while holding SysRq (Alt+PrintScreen <<
183 <<
184 On UML, this is accomplished by send <<
185 mconsole, followed by the letter for <<
186 <<
187 The keys are documented in <file:Doc <<
188 unless you really know what this hac <<
189 <<
190 config KERNEL_STACK_ORDER <<
191 int "Kernel stack size order" <<
192 default 2 if 64BIT <<
193 range 2 10 if 64BIT <<
194 default 1 if !64BIT <<
195 help <<
196 This option determines the size of U <<
197 be 1 << order pages. The default is <<
198 on UML, in which case, set this to 3 <<
199 It is possible to reduce the stack t <<
200 older (pre-2017) CPUs. It is not rec <<
201 increase in the size of the state wh <<
202 signals. <<
203 460
204 config MMAPPER !! 461 config ALPHA_BROKEN_IRQ_MASK
205 tristate "iomem emulation driver" !! 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)
>> 469 default y
206 help 470 help
207 This driver allows a host file to be !! 471 Support VGA on an arbitrary hose; needed for several platforms
208 UML. !! 472 which always have multiple hoses, and whose consoles support it.
209 473
210 config PGTABLE_LEVELS <<
211 int <<
212 default 3 if 3_LEVEL_PGTABLES <<
213 default 2 <<
214 474
215 config UML_TIME_TRAVEL_SUPPORT !! 475 config ALPHA_QEMU
216 bool !! 476 bool "Run under QEMU emulation"
217 prompt "Support time-travel mode (e.g. !! 477 depends on !ALPHA_GENERIC
218 # inf-cpu mode is incompatible with th !! 478 help
219 depends on !RAID6_PQ_BENCHMARK !! 479 Assume the presence of special features supported by QEMU PALcode
220 depends on !SMP !! 480 that reduce the overhead of system emulation.
221 help <<
222 Enable this option to support time t <<
223 <<
224 After enabling this option, two mode <<
225 (selected by the kernel command line <<
226 line help for more details. <<
227 <<
228 It is safe to say Y, but you probabl <<
229 <<
230 config KASAN_SHADOW_OFFSET <<
231 hex <<
232 depends on KASAN <<
233 default 0x100000000000 <<
234 help <<
235 This is the offset at which the ~16T <<
236 mapped and used by KASAN for memory <<
237 address that has at least KASAN_SHAD <<
238 by 8) amount of space so that the KA <<
239 with anything. The default is 0x1000 <<
240 set to a large value. On low-memory <<
241 into the immediate of most instructi <<
242 481
243 endmenu !! 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.
244 485
245 source "arch/um/drivers/Kconfig" !! 486 If unsure, say N.
246 487
247 config ARCH_SUSPEND_POSSIBLE !! 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
248 def_bool y 514 def_bool y
249 515
250 menu "Power management options" !! 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.
251 566
252 source "kernel/power/Kconfig" !! 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.
253 670
254 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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