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_MIGHT_HAVE_PC_PARPORT
10 select ARCH_HAS_GCOV_PROFILE_ALL !! 7 select ARCH_MIGHT_HAVE_PC_SERIO
11 select ARCH_HAS_KCOV !! 8 select ARCH_NO_PREEMPT
12 select ARCH_HAS_STRNCPY_FROM_USER !! 9 select ARCH_NO_SG_CHAIN
13 select ARCH_HAS_STRNLEN_USER !! 10 select ARCH_USE_CMPXCHG_LOCKREF
14 select HAVE_ARCH_AUDITSYSCALL !! 11 select DMA_OPS if PCI
15 select HAVE_ARCH_KASAN if X86_64 !! 12 select FORCE_PCI if !ALPHA_JENSEN
16 select HAVE_ARCH_KASAN_VMALLOC if HAVE !! 13 select PCI_DOMAINS if PCI
17 select HAVE_ARCH_SECCOMP_FILTER !! 14 select PCI_SYSCALL if PCI
18 select HAVE_ASM_MODVERSIONS 15 select HAVE_ASM_MODVERSIONS
19 select HAVE_UID16 !! 16 select HAVE_PCSPKR_PLATFORM
20 select HAVE_DEBUG_KMEMLEAK !! 17 select HAVE_PERF_EVENTS
21 select HAVE_DEBUG_BUGVERBOSE !! 18 select NEED_DMA_MAP_STATE
22 select HAVE_PAGE_SIZE_4KB !! 19 select NEED_SG_DMA_LENGTH
23 select NO_DMA if !UML_DMA_EMULATION !! 20 select GENERIC_IRQ_PROBE
24 select OF_EARLY_FLATTREE if OF !! 21 select GENERIC_PCI_IOMAP
>> 22 select AUTO_IRQ_AFFINITY if SMP
25 select GENERIC_IRQ_SHOW 23 select GENERIC_IRQ_SHOW
26 select GENERIC_CPU_DEVICES !! 24 select ARCH_WANT_IPC_PARSE_VERSION
27 select HAVE_GCC_PLUGINS !! 25 select ARCH_HAVE_NMI_SAFE_CMPXCHG
28 select ARCH_SUPPORTS_LTO_CLANG !! 26 select AUDIT_ARCH
29 select ARCH_SUPPORTS_LTO_CLANG_THIN !! 27 select GENERIC_CPU_VULNERABILITIES
30 select TRACE_IRQFLAGS_SUPPORT !! 28 select GENERIC_SMP_IDLE_THREAD
31 select TTY # Needed for line.c !! 29 select HAVE_ARCH_AUDITSYSCALL
32 select HAVE_ARCH_VMAP_STACK !! 30 select HAVE_MOD_ARCH_SPECIFIC
33 select HAVE_RUST !! 31 select LOCK_MM_AND_FIND_VMA
34 select ARCH_HAS_UBSAN !! 32 select MODULES_USE_ELF_RELA
>> 33 select ODD_RT_SIGACTION
>> 34 select OLD_SIGSUSPEND
>> 35 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
>> 36 select MMU_GATHER_NO_RANGE
>> 37 select SPARSEMEM_EXTREME if SPARSEMEM
>> 38 select ZONE_DMA
>> 39 help
>> 40 The Alpha is a 64-bit general-purpose processor designed and
>> 41 marketed by the Digital Equipment Corporation of blessed memory,
>> 42 now Hewlett-Packard. The Alpha Linux project has a home page at
>> 43 <http://www.alphalinux.org/>.
>> 44
>> 45 config 64BIT
>> 46 def_bool y
35 47
36 config MMU 48 config MMU
37 bool 49 bool
38 default y 50 default y
39 51
40 config UML_DMA_EMULATION !! 52 config ARCH_HAS_ILOG2_U32
>> 53 bool
>> 54 default n
>> 55
>> 56 config ARCH_HAS_ILOG2_U64
41 bool 57 bool
>> 58 default n
42 59
43 config NO_IOMEM !! 60 config GENERIC_CALIBRATE_DELAY
44 bool "disable IOMEM" if EXPERT !! 61 bool
45 depends on !INDIRECT_IOMEM <<
46 default y 62 default y
47 63
48 config UML_IOMEM_EMULATION !! 64 config GENERIC_ISA_DMA
49 bool 65 bool
50 select INDIRECT_IOMEM !! 66 default y
51 select HAS_IOPORT <<
52 select GENERIC_PCI_IOMAP <<
53 select GENERIC_IOMAP <<
54 select NO_GENERIC_PCI_IOPORT_MAP <<
55 67
56 config NO_IOPORT_MAP !! 68 config PGTABLE_LEVELS
57 def_bool !UML_IOMEM_EMULATION !! 69 int
>> 70 default 3
58 71
59 config ISA !! 72 config AUDIT_ARCH
60 bool 73 bool
61 74
62 config SBUS !! 75 menu "System setup"
>> 76
>> 77 choice
>> 78 prompt "Alpha system type"
>> 79 default ALPHA_GENERIC
>> 80 help
>> 81 This is the system type of your hardware. A "generic" kernel will
>> 82 run on any supported Alpha system. However, if you configure a
>> 83 kernel for your specific system, it will be faster and smaller.
>> 84
>> 85 To find out what type of Alpha system you have, you may want to
>> 86 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 87 <http://www.alphalinux.org/>. In summary:
>> 88
>> 89 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
>> 90 Alpha-XL XL-233, XL-266
>> 91 AlphaBook1 Alpha laptop
>> 92 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 93 Cabriolet AlphaPC64, AlphaPCI64
>> 94 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 95 EB164 EB164 21164 evaluation board
>> 96 EB64+ EB64+ 21064 evaluation board
>> 97 EB66 EB66 21066 evaluation board
>> 98 EB66+ EB66+ 21066 evaluation board
>> 99 Jensen DECpc 150, DEC 2000 models 300, 500
>> 100 LX164 AlphaPC164-LX
>> 101 Lynx AS 2100A
>> 102 Miata Personal Workstation 433/500/600 a/au
>> 103 Marvel AlphaServer ES47 / ES80 / GS1280
>> 104 Mikasa AS 1000
>> 105 Noname AXPpci33, UDB (Multia)
>> 106 Noritake AS 1000A, AS 600A, AS 800
>> 107 PC164 AlphaPC164
>> 108 Rawhide AS 1200, AS 4000, AS 4100
>> 109 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 110 SX164 AlphaPC164-SX
>> 111 Sable AS 2000, AS 2100
>> 112 Shark DS 20L
>> 113 Takara Takara (OEM)
>> 114 Titan AlphaServer ES45 / DS25 / DS15
>> 115 Wildfire AlphaServer GS 40/80/160/320
>> 116
>> 117 If you don't know what to do, choose "generic".
>> 118
>> 119 config ALPHA_GENERIC
>> 120 bool "Generic"
>> 121 depends on TTY
>> 122 select HAVE_EISA
>> 123 help
>> 124 A generic kernel will run on all supported Alpha hardware.
>> 125
>> 126 config ALPHA_ALCOR
>> 127 bool "Alcor/Alpha-XLT"
>> 128 select HAVE_EISA
>> 129 help
>> 130 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 131 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 132 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 133 controller (256-bit memory bus) and a PCI interface. It also does
>> 134 all the work required to support an external Bcache and to maintain
>> 135 memory coherence when a PCI device DMAs into (or out of) memory.
>> 136
>> 137 config ALPHA_XL
>> 138 bool "Alpha-XL"
>> 139 help
>> 140 XL-233 and XL-266-based Alpha systems.
>> 141
>> 142 config ALPHA_BOOK1
>> 143 bool "AlphaBook1"
>> 144 help
>> 145 Dec AlphaBook1/Burns Alpha-based laptops.
>> 146
>> 147 config ALPHA_AVANTI_CH
>> 148 bool "Avanti"
>> 149
>> 150 config ALPHA_CABRIOLET
>> 151 bool "Cabriolet"
>> 152 help
>> 153 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
>> 154 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 155 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 156 Bcache SIMMs. Requires power supply with 3.3V output.
>> 157
>> 158 config ALPHA_DP264
>> 159 bool "DP264"
>> 160 help
>> 161 Various 21264 systems with the tsunami core logic chipset.
>> 162 API Networks: 264DP, UP2000(+), CS20;
>> 163 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
>> 164
>> 165 config ALPHA_EB164
>> 166 bool "EB164"
>> 167 help
>> 168 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
>> 169 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
>> 170 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
>> 171 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 172 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 173 motherboard. Requires power supply with 3.3V output.
>> 174
>> 175 config ALPHA_EB64P_CH
>> 176 bool "EB64+"
>> 177
>> 178 config ALPHA_EB66
>> 179 bool "EB66"
>> 180 help
>> 181 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
>> 182 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 183 supply. The EB66 schematic was published as a marketing poster
>> 184 advertising the 21066 as "the first microprocessor in the world with
>> 185 embedded PCI".
>> 186
>> 187 config ALPHA_EB66P
>> 188 bool "EB66+"
>> 189 help
>> 190 Later variant of the EB66 board.
>> 191
>> 192 config ALPHA_EIGER
>> 193 bool "Eiger"
>> 194 help
>> 195 Apparently an obscure OEM single-board computer based on the
>> 196 Typhoon/Tsunami chipset family. Information on it is scanty.
>> 197
>> 198 config ALPHA_JENSEN
>> 199 bool "Jensen"
>> 200 select HAVE_EISA
>> 201 help
>> 202 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 203 of the first-generation Alpha systems. A number of these systems
>> 204 seem to be available on the second- hand market. The Jensen is a
>> 205 floor-standing tower system which originally used a 150MHz 21064 It
>> 206 used programmable logic to interface a 486 EISA I/O bridge to the
>> 207 CPU.
>> 208
>> 209 config ALPHA_LX164
>> 210 bool "LX164"
>> 211 help
>> 212 A technical overview of this board is available at
>> 213 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
>> 214
>> 215 config ALPHA_LYNX
>> 216 bool "Lynx"
>> 217 select HAVE_EISA
>> 218 help
>> 219 AlphaServer 2100A-based systems.
>> 220
>> 221 config ALPHA_MARVEL
>> 222 bool "Marvel"
>> 223 help
>> 224 AlphaServer ES47 / ES80 / GS1280 based on EV7.
>> 225
>> 226 config ALPHA_MIATA
>> 227 bool "Miata"
>> 228 select HAVE_EISA
>> 229 help
>> 230 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 231 or 600au).
>> 232
>> 233 config ALPHA_MIKASA
>> 234 bool "Mikasa"
>> 235 help
>> 236 AlphaServer 1000-based Alpha systems.
>> 237
>> 238 config ALPHA_NAUTILUS
>> 239 bool "Nautilus"
>> 240 help
>> 241 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
>> 242
>> 243 config ALPHA_NONAME_CH
>> 244 bool "Noname"
>> 245
>> 246 config ALPHA_NORITAKE
>> 247 bool "Noritake"
>> 248 select HAVE_EISA
>> 249 help
>> 250 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
>> 251 systems.
>> 252
>> 253 config ALPHA_PC164
>> 254 bool "PC164"
>> 255
>> 256 config ALPHA_P2K
>> 257 bool "Platform2000"
>> 258
>> 259 config ALPHA_RAWHIDE
>> 260 bool "Rawhide"
>> 261 select HAVE_EISA
>> 262 help
>> 263 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
>> 264 See HOWTO at
>> 265 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
>> 266
>> 267 config ALPHA_RUFFIAN
>> 268 bool "Ruffian"
>> 269 help
>> 270 Samsung APC164UX. There is a page on known problems and workarounds
>> 271 at <http://www.alphalinux.org/faq/FAQ-11.html>.
>> 272
>> 273 config ALPHA_RX164
>> 274 bool "RX164"
>> 275
>> 276 config ALPHA_SX164
>> 277 bool "SX164"
>> 278
>> 279 config ALPHA_SABLE
>> 280 bool "Sable"
>> 281 select HAVE_EISA
>> 282 help
>> 283 Digital AlphaServer 2000 and 2100-based systems.
>> 284
>> 285 config ALPHA_SHARK
>> 286 bool "Shark"
>> 287
>> 288 config ALPHA_TAKARA
>> 289 bool "Takara"
>> 290 help
>> 291 Alpha 11164-based OEM single-board computer.
>> 292
>> 293 config ALPHA_TITAN
>> 294 bool "Titan"
>> 295 help
>> 296 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
>> 297
>> 298 config ALPHA_WILDFIRE
>> 299 bool "Wildfire"
>> 300 help
>> 301 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
>> 302
>> 303 endchoice
>> 304
>> 305 # clear all implied options (don't want default values for those):
>> 306 # Most of these machines have ISA slots; not exactly sure which don't,
>> 307 # and this doesn't activate hordes of code, so do it always.
>> 308 config ISA
63 bool 309 bool
>> 310 default y
>> 311 help
>> 312 Find out whether you have ISA slots on your motherboard. ISA is the
>> 313 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 314 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 315 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 316 newer boards don't support it. If you have ISA, say Y, otherwise N.
64 317
65 config LOCKDEP_SUPPORT !! 318 config ISA_DMA_API
66 bool 319 bool
67 default y 320 default y
68 321
69 config STACKTRACE_SUPPORT !! 322 config ALPHA_NONAME
70 bool 323 bool
>> 324 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
71 default y 325 default y
72 select STACKTRACE !! 326 help
>> 327 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
>> 328 UDB). This design was produced by Digital's Technical OEM (TOEM)
>> 329 group. It uses the 21066 processor running at 166MHz or 233MHz. It
>> 330 is a baby-AT size, and runs from a standard PC power supply. It has
>> 331 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
>> 332 2 versions, with either PS/2 or large DIN connectors for the
>> 333 keyboard.
73 334
74 config GENERIC_CALIBRATE_DELAY !! 335 config ALPHA_EV4
75 bool 336 bool
>> 337 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
>> 338 default y if !ALPHA_LYNX
>> 339
>> 340 config ALPHA_LCA
>> 341 bool
>> 342 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
76 default y 343 default y
77 344
78 config HZ !! 345 config ALPHA_APECS
79 int !! 346 bool
80 default 100 !! 347 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 348 default y
81 349
82 config NR_CPUS !! 350 config ALPHA_EB64P
83 int !! 351 bool
84 range 1 1 !! 352 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
85 default 1 !! 353 default y
>> 354 help
>> 355 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
>> 356 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 357 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 358 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 359 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 360 Runs from standard PC power supply.
86 361
87 config ARCH_HAS_CACHE_LINE_SIZE !! 362 config ALPHA_EV5
88 def_bool y !! 363 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 364 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
89 365
90 source "arch/$(HEADER_ARCH)/um/Kconfig" !! 366 config ALPHA_EV4
>> 367 bool
>> 368 default y if ALPHA_LYNX && !ALPHA_EV5
91 369
92 config MAY_HAVE_RUNTIME_DEPS !! 370 config ALPHA_CIA
93 bool 371 bool
>> 372 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
>> 373 default y
94 374
95 config STATIC_LINK !! 375 config ALPHA_EV56
96 bool "Force a static link" !! 376 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
97 depends on CC_CAN_LINK_STATIC_NO_RUNTI !! 377 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
>> 378
>> 379 config ALPHA_EV56
>> 380 prompt "EV56 CPU (speed >= 333MHz)?"
>> 381 depends on ALPHA_NORITAKE || ALPHA_PRIMO
>> 382
>> 383 config ALPHA_EV56
>> 384 prompt "EV56 CPU (speed >= 400MHz)?"
>> 385 depends on ALPHA_RAWHIDE
>> 386
>> 387 config ALPHA_PRIMO
>> 388 bool "EV5 CPU daughtercard (model 5/xxx)?"
>> 389 depends on ALPHA_NORITAKE || ALPHA_MIKASA
98 help 390 help
99 This option gives you the ability to !! 391 Say Y if you have an AS 1000 5/xxx or an AS 1000A 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. <<
105 392
106 NOTE: This option is incompatible wi !! 393 config ALPHA_GAMMA
107 depend on features that require bein !! 394 bool "EV5 CPU(s) (model 5/xxx)?"
>> 395 depends on ALPHA_SABLE
>> 396 help
>> 397 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
108 398
109 config LD_SCRIPT_STATIC !! 399 config ALPHA_GAMMA
110 bool 400 bool
>> 401 depends on ALPHA_LYNX
111 default y 402 default y
112 depends on STATIC_LINK <<
113 403
114 config LD_SCRIPT_DYN !! 404 config ALPHA_T2
115 bool 405 bool
>> 406 depends on ALPHA_SABLE || ALPHA_LYNX
116 default y 407 default y
117 depends on !LD_SCRIPT_STATIC <<
118 408
119 config LD_SCRIPT_DYN_RPATH !! 409 config ALPHA_PYXIS
120 bool "set rpath in the binary" if EXPE !! 410 bool
>> 411 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
121 default y 412 default y
122 depends on LD_SCRIPT_DYN <<
123 help <<
124 Add /lib (and /lib64 for 64-bit) to <<
125 explicitly. <<
126 413
127 You may need to turn this off if com !! 414 config ALPHA_EV6
128 that have their libraries in random !! 415 bool
129 might otherwise unexpected use libra !! 416 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
130 instead of the desired ones. !! 417 default y
>> 418
>> 419 config ALPHA_TSUNAMI
>> 420 bool
>> 421 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 422 default y
131 423
132 config HOSTFS !! 424 config ALPHA_EV67
133 tristate "Host filesystem" !! 425 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
>> 426 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
134 help 427 help
135 While the User-Mode Linux port uses !! 428 Is this a machine based on the EV67 core? If in doubt, select N here
136 booting and normal file access, this !! 429 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: <<
140 430
141 mount none /tmp/fromhost -t hostfs - !! 431 config ALPHA_MCPCIA
>> 432 bool
>> 433 depends on ALPHA_RAWHIDE
>> 434 default y
142 435
143 where /tmp/fromhost is an empty dire !! 436 config ALPHA_POLARIS
144 /tmp/umlshare is a directory on the !! 437 bool
145 wishes to access. !! 438 depends on ALPHA_RX164
>> 439 default y
146 440
147 For more information, see !! 441 config ALPHA_IRONGATE
148 <http://user-mode-linux.sourceforge. !! 442 bool
>> 443 depends on ALPHA_NAUTILUS
>> 444 default y
149 445
150 If you'd like to be able to work wit !! 446 config GENERIC_HWEIGHT
151 say Y or M here; otherwise say N. !! 447 bool
>> 448 default y if !ALPHA_EV67
152 449
153 config MCONSOLE !! 450 config ALPHA_AVANTI
154 bool "Management console" !! 451 bool
155 depends on PROC_FS !! 452 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 453 default y
>> 454 help
>> 455 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
>> 456 Alphas. Info at
>> 457 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 458
>> 459 config ALPHA_BROKEN_IRQ_MASK
>> 460 bool
>> 461 depends on ALPHA_GENERIC || ALPHA_PC164
>> 462 default y
>> 463
>> 464 config VGA_HOSE
>> 465 bool
>> 466 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
156 default y 467 default y
157 help 468 help
158 The user mode linux management conso !! 469 Support VGA on an arbitrary hose; needed for several platforms
159 the kernel, somewhat like the i386 S !! 470 which always have multiple hoses, and whose consoles support it.
160 a full-blown operating system runnin !! 471
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. <<
203 472
204 config MMAPPER !! 473 config ALPHA_QEMU
205 tristate "iomem emulation driver" !! 474 bool "Run under QEMU emulation"
>> 475 depends on !ALPHA_GENERIC
206 help 476 help
207 This driver allows a host file to be !! 477 Assume the presence of special features supported by QEMU PALcode
208 UML. !! 478 that reduce the overhead of system emulation.
209 479
210 config PGTABLE_LEVELS !! 480 Generic kernels will auto-detect QEMU. But when building a
211 int !! 481 system-specific kernel, the assumption is that we want to
212 default 3 if 3_LEVEL_PGTABLES !! 482 eliminate as many runtime tests as possible.
213 default 2 <<
214 483
215 config UML_TIME_TRAVEL_SUPPORT !! 484 If unsure, say N.
216 bool <<
217 prompt "Support time-travel mode (e.g. <<
218 # inf-cpu mode is incompatible with th <<
219 depends on !RAID6_PQ_BENCHMARK <<
220 depends on !SMP <<
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 <<
242 485
243 endmenu <<
244 486
245 source "arch/um/drivers/Kconfig" !! 487 config ALPHA_SRM
>> 488 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
>> 489 depends on TTY
>> 490 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
>> 491 help
>> 492 There are two different types of booting firmware on Alphas: SRM,
>> 493 which is command line driven, and ARC, which uses menus and arrow
>> 494 keys. Details about the Linux/Alpha booting process are contained in
>> 495 the Linux/Alpha FAQ, accessible on the WWW from
>> 496 <http://www.alphalinux.org/>.
>> 497
>> 498 The usual way to load Linux on an Alpha machine is to use MILO
>> 499 (a bootloader that lets you pass command line parameters to the
>> 500 kernel just like lilo does for the x86 architecture) which can be
>> 501 loaded either from ARC or can be installed directly as a permanent
>> 502 firmware replacement from floppy (which requires changing a certain
>> 503 jumper on the motherboard). If you want to do either of these, say N
>> 504 here. If MILO doesn't work on your system (true for Jensen
>> 505 motherboards), you can bypass it altogether and boot Linux directly
>> 506 from an SRM console; say Y here in order to do that. Note that you
>> 507 won't be able to boot from an IDE disk using SRM.
246 508
247 config ARCH_SUSPEND_POSSIBLE !! 509 If unsure, say N.
>> 510
>> 511 config ARCH_MAY_HAVE_PC_FDC
248 def_bool y 512 def_bool y
249 513
250 menu "Power management options" !! 514 config SMP
>> 515 bool "Symmetric multi-processing support"
>> 516 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 517 help
>> 518 This enables support for systems with more than one CPU. If you have
>> 519 a system with only one CPU, say N. If you have a system with more
>> 520 than one CPU, say Y.
>> 521
>> 522 If you say N here, the kernel will run on uni- and multiprocessor
>> 523 machines, but will use only one CPU of a multiprocessor machine. If
>> 524 you say Y here, the kernel will run on many, but not all,
>> 525 uniprocessor machines. On a uniprocessor machine, the kernel
>> 526 will run faster if you say N here.
>> 527
>> 528 See also the SMP-HOWTO available at
>> 529 <https://www.tldp.org/docs.html#howto>.
>> 530
>> 531 If you don't know what to do here, say N.
>> 532
>> 533 config NR_CPUS
>> 534 int "Maximum number of CPUs (2-32)"
>> 535 range 2 32
>> 536 depends on SMP
>> 537 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 538 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
>> 539 help
>> 540 MARVEL support can handle a maximum of 32 CPUs, all the others
>> 541 with working support have a maximum of 4 CPUs.
>> 542
>> 543 config ARCH_SPARSEMEM_ENABLE
>> 544 bool "Sparse Memory Support"
>> 545 help
>> 546 Say Y to support efficient handling of discontiguous physical memory,
>> 547 for systems that have huge holes in the physical address space.
>> 548
>> 549 config ALPHA_WTINT
>> 550 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 551 default y if ALPHA_QEMU
>> 552 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 553 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 554 default y if SMP
>> 555 help
>> 556 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 557 to sleep until the next interrupt. This may reduce the power
>> 558 consumed, and the heat produced by the computer. However, it has
>> 559 the side effect of making the cycle counter unreliable as a timing
>> 560 device across the sleep.
>> 561
>> 562 For emulation under QEMU, definitely say Y here, as we have other
>> 563 mechanisms for measuring time than the cycle counter.
251 564
252 source "kernel/power/Kconfig" !! 565 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
>> 566 MILO, sleep mode is not supported so you might as well say N here.
>> 567
>> 568 For SMP systems we cannot use the cycle counter for timing anyway,
>> 569 so you might as well say Y here.
>> 570
>> 571 If unsure, say N.
>> 572
>> 573 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 574 config ALPHA_LARGE_VMALLOC
>> 575 bool
>> 576 help
>> 577 Process creation and other aspects of virtual memory management can
>> 578 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 579 allocations. This equates to about 8GB.
>> 580
>> 581 Under normal circumstances, this is so far and above what is needed
>> 582 as to be laughable. However, there are certain applications (such
>> 583 as benchmark-grade in-kernel web serving) that can make use of as
>> 584 much vmalloc space as is available.
>> 585
>> 586 Say N unless you know you need gobs and gobs of vmalloc space.
>> 587
>> 588 config VERBOSE_MCHECK
>> 589 bool "Verbose Machine Checks"
>> 590
>> 591 config VERBOSE_MCHECK_ON
>> 592 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 593 depends on VERBOSE_MCHECK
>> 594 default 1
>> 595 help
>> 596 This option allows the default printing mode to be set, and then
>> 597 possibly overridden by a boot command argument.
>> 598
>> 599 For example, if one wanted the option of printing verbose
>> 600 machine checks, but wanted the default to be as if verbose
>> 601 machine check printing was turned off, then one would choose
>> 602 the printing mode to be 0. Then, upon reboot, one could add
>> 603 the boot command line "verbose_mcheck=1" to get the normal
>> 604 verbose machine check printing, or "verbose_mcheck=2" to get
>> 605 the maximum information available.
>> 606
>> 607 Take the default (1) unless you want more control or more info.
>> 608
>> 609 choice
>> 610 prompt "Timer interrupt frequency (HZ)?"
>> 611 default HZ_128 if ALPHA_QEMU
>> 612 default HZ_1200 if ALPHA_RAWHIDE
>> 613 default HZ_1024
>> 614 help
>> 615 The frequency at which timer interrupts occur. A high frequency
>> 616 minimizes latency, whereas a low frequency minimizes overhead of
>> 617 process accounting. The later effect is especially significant
>> 618 when being run under QEMU.
>> 619
>> 620 Note that some Alpha hardware cannot change the interrupt frequency
>> 621 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 622
>> 623 config HZ_32
>> 624 bool "32 Hz"
>> 625 config HZ_64
>> 626 bool "64 Hz"
>> 627 config HZ_128
>> 628 bool "128 Hz"
>> 629 config HZ_256
>> 630 bool "256 Hz"
>> 631 config HZ_1024
>> 632 bool "1024 Hz"
>> 633 config HZ_1200
>> 634 bool "1200 Hz"
>> 635 endchoice
>> 636
>> 637 config HZ
>> 638 int
>> 639 default 32 if HZ_32
>> 640 default 64 if HZ_64
>> 641 default 128 if HZ_128
>> 642 default 256 if HZ_256
>> 643 default 1200 if HZ_1200
>> 644 default 1024
>> 645
>> 646 config SRM_ENV
>> 647 tristate "SRM environment through procfs"
>> 648 depends on PROC_FS
>> 649 help
>> 650 If you enable this option, a subdirectory inside /proc called
>> 651 /proc/srm_environment will give you access to the all important
>> 652 SRM environment variables (those which have a name) and also
>> 653 to all others (by their internal number).
>> 654
>> 655 SRM is something like a BIOS for Alpha machines. There are some
>> 656 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 657 support (hey, that's not SRM!).
>> 658
>> 659 Despite the fact that this driver doesn't work on all Alphas (but
>> 660 only on those which have SRM as their firmware), it's save to
>> 661 build it even if your particular machine doesn't know about SRM
>> 662 (or if you intend to compile a generic kernel). It will simply
>> 663 not create those subdirectory in /proc (and give you some warning,
>> 664 of course).
>> 665
>> 666 This driver is also available as a module and will be called
>> 667 srm_env then.
253 668
254 endmenu 669 endmenu
>> 670
>> 671 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 672 # but we also need it if VGA_HOSE is set
>> 673 config DUMMY_CONSOLE
>> 674 bool
>> 675 depends on VGA_HOSE
>> 676 default y
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