1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 config NIOS2 !! 2 # For a description of the syntax of this configuration file,
3 def_bool y !! 3 # see Documentation/kbuild/kconfig-language.txt.
4 select ARCH_32BIT_OFF_T !! 4 #
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 5 config ALPHA
6 select ARCH_HAS_DMA_PREP_COHERENT !! 6 bool
7 select ARCH_HAS_SYNC_DMA_FOR_CPU !! 7 default y
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 8 help
9 select ARCH_HAS_DMA_SET_UNCACHED !! 9 The Alpha is a 64-bit general-purpose processor designed and
10 select ARCH_NO_SWAP !! 10 marketed by the Digital Equipment Corporation of blessed memory,
11 select COMMON_CLK !! 11 now Hewlett-Packard. The Alpha Linux project has a home page at
12 select TIMER_OF !! 12 <http://www.alphalinux.org/>.
13 select GENERIC_ATOMIC64 <<
14 select GENERIC_CPU_DEVICES <<
15 select GENERIC_IRQ_PROBE <<
16 select GENERIC_IRQ_SHOW <<
17 select HAVE_ARCH_TRACEHOOK <<
18 select HAVE_ARCH_KGDB <<
19 select HAVE_PAGE_SIZE_4KB <<
20 select IRQ_DOMAIN <<
21 select LOCK_MM_AND_FIND_VMA <<
22 select MODULES_USE_ELF_RELA <<
23 select OF <<
24 select OF_EARLY_FLATTREE <<
25 select SOC_BUS <<
26 select SPARSE_IRQ <<
27 select USB_ARCH_HAS_HCD if USB_SUPPORT <<
28 select CPU_NO_EFFICIENT_FFS <<
29 select MMU_GATHER_NO_RANGE if MMU <<
30 13
31 config GENERIC_CSUM !! 14 config 64BIT
32 def_bool y 15 def_bool y
33 16
34 config GENERIC_HWEIGHT !! 17 config MMU
35 def_bool y !! 18 bool
>> 19 default y
36 20
37 config GENERIC_CALIBRATE_DELAY !! 21 config UID16
38 def_bool y !! 22 bool
>> 23
>> 24 config RWSEM_GENERIC_SPINLOCK
>> 25 bool
>> 26
>> 27 config RWSEM_XCHGADD_ALGORITHM
>> 28 bool
>> 29 default y
>> 30
>> 31 config GENERIC_ISA_DMA
>> 32 bool
>> 33 default y
>> 34
>> 35 source "init/Kconfig"
39 36
40 config NO_IOPORT_MAP <<
41 def_bool y <<
42 37
43 config FPU !! 38 menu "System setup"
44 def_bool n <<
45 39
46 menu "Kernel features" !! 40 choice
>> 41 prompt "Alpha system type"
>> 42 default ALPHA_GENERIC
>> 43 ---help---
>> 44 This is the system type of your hardware. A "generic" kernel will
>> 45 run on any supported Alpha system. However, if you configure a
>> 46 kernel for your specific system, it will be faster and smaller.
47 47
48 source "kernel/Kconfig.hz" !! 48 To find out what type of Alpha system you have, you may want to
>> 49 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 50 <http://www.alphalinux.org/>. In summary:
49 51
50 config ARCH_FORCE_MAX_ORDER !! 52 Alcor/Alpha-XLT AS 600
51 int "Order of maximal physically conti !! 53 Alpha-XL XL-233, XL-266
52 default "10" !! 54 AlphaBook1 Alpha laptop
>> 55 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 56 Cabriolet AlphaPC64, AlphaPCI64
>> 57 DP264 DP264
>> 58 EB164 EB164 21164 evaluation board
>> 59 EB64+ EB64+ 21064 evaluation board
>> 60 EB66 EB66 21066 evaluation board
>> 61 EB66+ EB66+ 21066 evaluation board
>> 62 Jensen DECpc 150, DEC 2000 model 300,
>> 63 DEC 2000 model 500
>> 64 LX164 AlphaPC164-LX
>> 65 Lynx AS 2100A
>> 66 Miata Personal Workstation 433a, 433au, 500a,
>> 67 500au, 600a, or 600au
>> 68 Marvel AlphaServer ES47 / ES80 / GS1280
>> 69 Mikasa AS 1000
>> 70 Noname AXPpci33, UDB (Multia)
>> 71 Noritake AS 1000A, AS 600A, AS 800
>> 72 PC164 AlphaPC164
>> 73 Rawhide AS 1200, AS 4000, AS 4100
>> 74 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 75 SX164 AlphaPC164-SX
>> 76 Sable AS 2000, AS 2100
>> 77 Shark DS 20L
>> 78 Takara Takara
>> 79 Titan AlphaServer ES45 / DS25
>> 80 Wildfire AlphaServer GS 40/80/160/320
>> 81
>> 82 If you don't know what to do, choose "generic".
>> 83
>> 84 config ALPHA_GENERIC
>> 85 bool "Generic"
53 help 86 help
54 The kernel page allocator limits the !! 87 A generic kernel will run on all supported Alpha hardware.
55 contiguous allocations. The limit is <<
56 defines the maximal power of two of <<
57 allocated as a single contiguous blo <<
58 overriding the default setting when <<
59 large blocks of physically contiguou <<
60 88
61 Don't change if unsure. !! 89 config ALPHA_ALCOR
>> 90 bool "Alcor/Alpha-XLT"
>> 91 help
>> 92 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 93 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 94 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 95 controller (256-bit memory bus) and a PCI interface. It also does
>> 96 all the work required to support an external Bcache and to maintain
>> 97 memory coherence when a PCI device DMAs into (or out of) memory.
62 98
63 endmenu !! 99 config ALPHA_XL
>> 100 bool "Alpha-XL"
>> 101 help
>> 102 XL-233 and XL-266-based Alpha systems.
64 103
65 source "arch/nios2/platform/Kconfig.platform" !! 104 config ALPHA_BOOK1
>> 105 bool "AlphaBook1"
>> 106 help
>> 107 Dec AlphaBook1/Burns Alpha-based laptops.
66 108
67 menu "Processor type and features" !! 109 config ALPHA_AVANTI_CH
>> 110 bool "Avanti"
68 111
69 config MMU !! 112 config ALPHA_CABRIOLET
70 def_bool y !! 113 bool "Cabriolet"
>> 114 help
>> 115 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
>> 116 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 117 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 118 Bcache SIMMs. Requires power supply with 3.3V output.
71 119
72 config NR_CPUS !! 120 config ALPHA_DP264
73 int !! 121 bool "DP264"
74 default "1" !! 122 help
>> 123 Various 21264 systems with the tsunami core logic chipset.
>> 124 API Networks: 264DP, UP2000(+), CS20;
>> 125 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
75 126
76 config NIOS2_ALIGNMENT_TRAP !! 127 config ALPHA_EB164
77 bool "Catch alignment trap" !! 128 bool "EB164"
78 default y <<
79 help 129 help
80 Nios II CPUs cannot fetch/store data !! 130 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
81 i.e., a 2 or 4 byte fetch must start !! 131 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
82 2 or 4. Any non-aligned load/store i !! 132 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
83 emulated in software if you say Y he !! 133 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
84 impact. !! 134 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 135 motherboard. Requires power supply with 3.3V output.
85 136
86 comment "Boot options" !! 137 config ALPHA_EB64P_CH
>> 138 bool "EB64+"
87 139
88 config CMDLINE_BOOL !! 140 config ALPHA_EB66
89 bool "Default bootloader kernel argume !! 141 bool "EB66"
90 default y !! 142 help
>> 143 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
>> 144 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 145 supply. The EB66 schematic was published as a marketing poster
>> 146 advertising the 21066 as "the first microprocessor in the world with
>> 147 embedded PCI".
91 148
92 config CMDLINE !! 149 config ALPHA_EB66P
93 string "Default kernel command string" !! 150 bool "EB66+"
94 default "" <<
95 depends on CMDLINE_BOOL <<
96 help 151 help
97 On some platforms, there is currentl !! 152 Later variant of the EB66 board.
98 pass arguments to the kernel. For th <<
99 some command-line options at build t <<
100 other cases you can specify kernel a <<
101 to set them up in board prom initial <<
102 153
103 config CMDLINE_FORCE !! 154 config ALPHA_EIGER
104 bool "Force default kernel command str !! 155 bool "Eiger"
105 depends on CMDLINE_BOOL <<
106 help 156 help
107 Set this to have arguments from the !! 157 Apparently an obscure OEM single-board computer based on the
108 override those passed by the boot lo !! 158 Typhoon/Tsunami chipset family. Information on it is scanty.
109 159
110 config NIOS2_CMDLINE_IGNORE_DTB !! 160 config ALPHA_JENSEN
111 bool "Ignore kernel command string fro !! 161 bool "Jensen"
112 depends on CMDLINE_BOOL <<
113 depends on !CMDLINE_FORCE <<
114 default y <<
115 help 162 help
116 Set this to ignore the bootargs prop !! 163 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
117 chosen node and fall back to CMDLINE !! 164 of the first-generation Alpha systems. A number of these systems
>> 165 seem to be available on the second- hand market. The Jensen is a
>> 166 floor-standing tower system which originally used a 150MHz 21064 It
>> 167 used programmable logic to interface a 486 EISA I/O bridge to the
>> 168 CPU.
118 169
119 config NIOS2_PASS_CMDLINE !! 170 config ALPHA_LX164
120 bool "Passed kernel command line from !! 171 bool "LX164"
121 help 172 help
122 Use bootargs env variable from u-boo !! 173 A technical overview of this board is available at
123 will override "Default kernel comman !! 174 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
124 Say N if you are unsure. <<
125 175
126 config NIOS2_BOOT_LINK_OFFSET !! 176 config ALPHA_LYNX
127 hex "Link address offset for booting" !! 177 bool "Lynx"
128 default "0x00500000" <<
129 help 178 help
130 This option allows you to set the li !! 179 AlphaServer 2100A-based systems.
131 This can be useful if you are on a b <<
132 memory. <<
133 180
134 endmenu !! 181 config ALPHA_MARVEL
>> 182 bool "Marvel"
>> 183 help
>> 184 AlphaServer ES47 / ES80 / GS1280 based on EV7.
>> 185
>> 186 config ALPHA_MIATA
>> 187 bool "Miata"
>> 188 help
>> 189 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 190 or 600au). There is an Installation HOWTO for this hardware at
>> 191 <http://members.brabant.chello.nl/~s.vandereijk/miata.html>.
>> 192
>> 193 config ALPHA_MIKASA
>> 194 bool "Mikasa"
>> 195 help
>> 196 AlphaServer 1000-based Alpha systems.
>> 197
>> 198 config ALPHA_NAUTILUS
>> 199 bool "Nautilus"
>> 200 help
>> 201 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
>> 202
>> 203 config ALPHA_NONAME_CH
>> 204 bool "Noname"
>> 205
>> 206 config ALPHA_NORITAKE
>> 207 bool "Noritake"
>> 208 help
>> 209 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
>> 210 systems.
>> 211
>> 212 config ALPHA_PC164
>> 213 bool "PC164"
>> 214
>> 215 config ALPHA_P2K
>> 216 bool "Platform2000"
>> 217
>> 218 config ALPHA_RAWHIDE
>> 219 bool "Rawhide"
>> 220 help
>> 221 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
>> 222 See HOWTO at
>> 223 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
>> 224
>> 225 config ALPHA_RUFFIAN
>> 226 bool "Ruffian"
>> 227 help
>> 228 Samsung APC164UX. There is a page on known problems and workarounds
>> 229 at <http://www.alphalinux.org/faq/FAQ-11.html>.
>> 230
>> 231 config ALPHA_RX164
>> 232 bool "RX164"
>> 233
>> 234 config ALPHA_SX164
>> 235 bool "SX164"
135 236
136 menu "Advanced setup" !! 237 config ALPHA_SABLE
>> 238 bool "Sable"
>> 239 help
>> 240 Digital AlphaServer 2000 and 2100-based systems.
>> 241
>> 242 config ALPHA_SHARK
>> 243 bool "Shark"
>> 244
>> 245 config ALPHA_TAKARA
>> 246 bool "Takara"
>> 247 help
>> 248 Alpha 11164-based OEM single-board computer.
137 249
138 config ADVANCED_OPTIONS !! 250 config ALPHA_TITAN
139 bool "Prompt for advanced kernel confi !! 251 bool "Titan"
>> 252 help
>> 253 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
>> 254
>> 255 config ALPHA_WILDFIRE
>> 256 bool "Wildfire"
>> 257 help
>> 258 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
>> 259
>> 260 endchoice
>> 261
>> 262 # clear all implied options (don't want default values for those):
>> 263 # Most of these machines have ISA slots; not exactly sure which don't,
>> 264 # and this doesn't activate hordes of code, so do it always.
>> 265 config ISA
>> 266 bool
>> 267 default y
>> 268 help
>> 269 Find out whether you have ISA slots on your motherboard. ISA is the
>> 270 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 271 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 272 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 273 newer boards don't support it. If you have ISA, say Y, otherwise N.
>> 274
>> 275 config PCI
>> 276 bool
>> 277 depends on !ALPHA_JENSEN
>> 278 default y
>> 279 help
>> 280 Find out whether you have a PCI motherboard. PCI is the name of a
>> 281 bus system, i.e. the way the CPU talks to the other stuff inside
>> 282 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
>> 283 VESA. If you have PCI, say Y, otherwise N.
>> 284
>> 285 The PCI-HOWTO, available from
>> 286 <http://www.tldp.org/docs.html#howto>, contains valuable
>> 287 information about which PCI hardware does work under Linux and which
>> 288 doesn't.
>> 289
>> 290 config PCI_DOMAINS
>> 291 bool
>> 292 default y
>> 293
>> 294 config ALPHA_CORE_AGP
>> 295 bool
>> 296 depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL
>> 297 default y
>> 298
>> 299 config ALPHA_NONAME
>> 300 bool
>> 301 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
>> 302 default y
>> 303 help
>> 304 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
>> 305 UDB). This design was produced by Digital's Technical OEM (TOEM)
>> 306 group. It uses the 21066 processor running at 166MHz or 233MHz. It
>> 307 is a baby-AT size, and runs from a standard PC power supply. It has
>> 308 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
>> 309 2 versions, with either PS/2 or large DIN connectors for the
>> 310 keyboard.
>> 311
>> 312 config ALPHA_EV4
>> 313 bool
>> 314 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
>> 315 default y if !ALPHA_LYNX
>> 316
>> 317 config ALPHA_LCA
>> 318 bool
>> 319 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
>> 320 default y
140 321
141 comment "Default settings for advanced configu !! 322 config ALPHA_APECS
142 depends on !ADVANCED_OPTIONS !! 323 bool
>> 324 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 325 default y
143 326
144 config NIOS2_KERNEL_MMU_REGION_BASE_BOOL !! 327 config ALPHA_EB64P
145 bool "Set custom kernel MMU region bas !! 328 bool
146 depends on ADVANCED_OPTIONS !! 329 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 330 default y
147 help 331 help
148 This option allows you to set the vi !! 332 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
>> 333 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 334 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 335 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 336 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 337 Runs from standard PC power supply.
>> 338
>> 339 config ALPHA_EV5
>> 340 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 341 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
>> 342
>> 343 config ALPHA_EV4
>> 344 bool
>> 345 default y if ALPHA_LYNX && !ALPHA_EV5
>> 346
>> 347 config ALPHA_CIA
>> 348 bool
>> 349 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
>> 350 default y
>> 351
>> 352 config ALPHA_EV56
>> 353 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 354 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
>> 355
>> 356 config ALPHA_EV56
>> 357 prompt "EV56 CPU (speed >= 333MHz)?"
>> 358 depends on ALPHA_NORITAKE && ALPHA_PRIMO
149 359
150 Say N here unless you know what you !! 360 config ALPHA_EV56
>> 361 prompt "EV56 CPU (speed >= 400MHz)?"
>> 362 depends on ALPHA_RAWHIDE
151 363
152 config NIOS2_KERNEL_MMU_REGION_BASE !! 364 config ALPHA_PRIMO
153 hex "Virtual base address of the kerne !! 365 bool "EV5 CPU daughtercard (model 5/xxx)?"
154 default "0x80000000" !! 366 depends on ALPHA_NORITAKE || ALPHA_MIKASA
155 help 367 help
156 This option allows you to set the vi !! 368 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
157 369
158 config NIOS2_KERNEL_REGION_BASE_BOOL !! 370 config ALPHA_GAMMA
159 bool "Set custom kernel region base ad !! 371 bool "EV5 CPU(s) (model 5/xxx)?"
160 depends on ADVANCED_OPTIONS !! 372 depends on ALPHA_SABLE
161 help 373 help
162 This option allows you to set the vi !! 374 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
>> 375
>> 376 config ALPHA_GAMMA
>> 377 bool
>> 378 depends on ALPHA_LYNX
>> 379 default y
>> 380
>> 381 config ALPHA_T2
>> 382 bool
>> 383 depends on ALPHA_SABLE || ALPHA_LYNX
>> 384 default y
>> 385
>> 386 config ALPHA_PYXIS
>> 387 bool
>> 388 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 389 default y
>> 390
>> 391 config ALPHA_EV6
>> 392 bool
>> 393 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 394 default y
>> 395
>> 396 config ALPHA_TSUNAMI
>> 397 bool
>> 398 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 399 default y
>> 400
>> 401 config ALPHA_EV67
>> 402 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
>> 403 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
>> 404 help
>> 405 Is this a machine based on the EV67 core? If in doubt, select N here
>> 406 and the machine will be treated as an EV6.
>> 407
>> 408 config ALPHA_EV7
>> 409 bool
>> 410 depends on ALPHA_MARVEL
>> 411 default y
>> 412
>> 413 config ALPHA_MCPCIA
>> 414 bool
>> 415 depends on ALPHA_RAWHIDE
>> 416 default y
>> 417
>> 418 config ALPHA_POLARIS
>> 419 bool
>> 420 depends on ALPHA_RX164
>> 421 default y
>> 422
>> 423 config ALPHA_IRONGATE
>> 424 bool
>> 425 depends on ALPHA_NAUTILUS
>> 426 default y
>> 427
>> 428 config ALPHA_AVANTI
>> 429 bool
>> 430 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 431 default y
>> 432 help
>> 433 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
>> 434 Alphas. Info at
>> 435 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 436
>> 437 config ALPHA_BROKEN_IRQ_MASK
>> 438 bool
>> 439 depends on ALPHA_GENERIC || ALPHA_PC164
>> 440 default y
>> 441
>> 442 config ALPHA_SRM
>> 443 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
>> 444 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
>> 445 ---help---
>> 446 There are two different types of booting firmware on Alphas: SRM,
>> 447 which is command line driven, and ARC, which uses menus and arrow
>> 448 keys. Details about the Linux/Alpha booting process are contained in
>> 449 the Linux/Alpha FAQ, accessible on the WWW from
>> 450 <http://www.alphalinux.org/>.
>> 451
>> 452 The usual way to load Linux on an Alpha machine is to use MILO
>> 453 (a bootloader that lets you pass command line parameters to the
>> 454 kernel just like lilo does for the x86 architecture) which can be
>> 455 loaded either from ARC or can be installed directly as a permanent
>> 456 firmware replacement from floppy (which requires changing a certain
>> 457 jumper on the motherboard). If you want to do either of these, say N
>> 458 here. If MILO doesn't work on your system (true for Jensen
>> 459 motherboards), you can bypass it altogether and boot Linux directly
>> 460 from an SRM console; say Y here in order to do that. Note that you
>> 461 won't be able to boot from an IDE disk using SRM.
>> 462
>> 463 If unsure, say N.
>> 464
>> 465 config EARLY_PRINTK
>> 466 bool
>> 467 depends on ALPHA_GENERIC || ALPHA_SRM
>> 468 default y
>> 469
>> 470 config EISA
>> 471 bool
>> 472 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
>> 473 default y
>> 474
>> 475 config SMP
>> 476 bool "Symmetric multi-processing support"
>> 477 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 478 ---help---
>> 479 This enables support for systems with more than one CPU. If you have
>> 480 a system with only one CPU, like most personal computers, say N. If
>> 481 you have a system with more than one CPU, say Y.
>> 482
>> 483 If you say N here, the kernel will run on single and multiprocessor
>> 484 machines, but will use only one CPU of a multiprocessor machine. If
>> 485 you say Y here, the kernel will run on many, but not all,
>> 486 singleprocessor machines. On a singleprocessor machine, the kernel
>> 487 will run faster if you say N here.
>> 488
>> 489 Note that if you say Y here and choose architecture "586" or
>> 490 "Pentium" under "Processor family", the kernel will not work on 486
>> 491 architectures. Similarly, multiprocessor kernels for the "PPro"
>> 492 architecture may not work on all Pentium based boards.
>> 493
>> 494 People using multiprocessor machines who say Y here should also say
>> 495 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 496 Management" code will be disabled if you say Y here.
>> 497
>> 498 See also the <file:Documentation/smp.tex>,
>> 499 <file:Documentation/smp.txt>, <file:Documentation/i386/IO-APIC.txt>,
>> 500 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
>> 501 <http://www.tldp.org/docs.html#howto>.
>> 502
>> 503 If you don't know what to do here, say N.
>> 504
>> 505 config HAVE_DEC_LOCK
>> 506 bool
>> 507 depends on SMP
>> 508 default y
>> 509
>> 510 config NR_CPUS
>> 511 int "Maximum number of CPUs (2-64)"
>> 512 depends on SMP
>> 513 default "64"
>> 514
>> 515 config DISCONTIGMEM
>> 516 bool "Discontiguous Memory Support (EXPERIMENTAL)"
>> 517 depends on EXPERIMENTAL
>> 518 help
>> 519 Say Y to upport efficient handling of discontiguous physical memory,
>> 520 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 521 or have huge holes in the physical address space for other reasons.
>> 522 See <file:Documentation/vm/numa> for more.
>> 523
>> 524 config NUMA
>> 525 bool "NUMA Support (EXPERIMENTAL)"
>> 526 depends on DISCONTIGMEM
>> 527 help
>> 528 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 529 Access). This option is for configuring high-end multiprocessor
>> 530 server machines. If in doubt, say N.
>> 531
>> 532 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 533 config ALPHA_LARGE_VMALLOC
>> 534 bool
>> 535 ---help---
>> 536 Process creation and other aspects of virtual memory management can
>> 537 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 538 allocations. This equates to about 8GB.
>> 539
>> 540 Under normal circumstances, this is so far and above what is needed
>> 541 as to be laughable. However, there are certain applications (such
>> 542 as benchmark-grade in-kernel web serving) that can make use of as
>> 543 much vmalloc space as is available.
>> 544
>> 545 Say N unless you know you need gobs and gobs of vmalloc space.
>> 546
>> 547 config VERBOSE_MCHECK
>> 548 bool "Verbose Machine Checks"
>> 549
>> 550 config VERBOSE_MCHECK_ON
>> 551 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 552 depends on VERBOSE_MCHECK
>> 553 default 1
>> 554 ---help---
>> 555 This option allows the default printing mode to be set, and then
>> 556 possibly overridden by a boot command argument.
>> 557
>> 558 For example, if one wanted the option of printing verbose
>> 559 machine checks, but wanted the default to be as if verbose
>> 560 machine check printing was turned off, then one would choose
>> 561 the printing mode to be 0. Then, upon reboot, one could add
>> 562 the boot command line "verbose_mcheck=1" to get the normal
>> 563 verbose machine check printing, or "verbose_mcheck=2" to get
>> 564 the maximum information available.
>> 565
>> 566 Take the default (1) unless you want more control or more info.
>> 567
>> 568 source "drivers/pci/Kconfig"
>> 569 source "drivers/eisa/Kconfig"
>> 570
>> 571 config HOTPLUG
>> 572 bool "Support for hot-pluggable devices"
>> 573 ---help---
>> 574 Say Y here if you want to plug devices into your computer while
>> 575 the system is running, and be able to use them quickly. In many
>> 576 cases, the devices can likewise be unplugged at any time too.
>> 577
>> 578 One well known example of this is PCMCIA- or PC-cards, credit-card
>> 579 size devices such as network cards, modems or hard drives which are
>> 580 plugged into slots found on all modern laptop computers. Another
>> 581 example, used on modern desktops as well as laptops, is USB.
>> 582
>> 583 Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
>> 584 software (at <http://linux-hotplug.sourceforge.net/>) and install it.
>> 585 Then your kernel will automatically call out to a user mode "policy
>> 586 agent" (/sbin/hotplug) to load modules and set up software needed
>> 587 to use devices as you hotplug them.
>> 588
>> 589 source "drivers/pcmcia/Kconfig"
>> 590
>> 591 config SRM_ENV
>> 592 tristate "SRM environment through procfs"
>> 593 depends on PROC_FS
>> 594 ---help---
>> 595 If you enable this option, a subdirectory inside /proc called
>> 596 /proc/srm_environment will give you access to the all important
>> 597 SRM environment variables (those which have a name) and also
>> 598 to all others (by their internal number).
>> 599
>> 600 SRM is something like a BIOS for Alpha machines. There are some
>> 601 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 602 support (hey, that's not SRM!).
>> 603
>> 604 Despite the fact that this driver doesn't work on all Alphas (but
>> 605 only on those which have SRM as their firmware), it's save to
>> 606 build it even if your particular machine doesn't know about SRM
>> 607 (or if you intend to compile a generic kernel). It will simply
>> 608 not create those subdirectory in /proc (and give you some warning,
>> 609 of course).
163 610
164 Say N here unless you know what you !! 611 This driver is also available as a module and will be called
>> 612 srm_env then.
165 613
166 config NIOS2_KERNEL_REGION_BASE !! 614 source "fs/Kconfig.binfmt"
167 hex "Virtual base address of the kerne <<
168 default "0xc0000000" <<
169 615
170 config NIOS2_IO_REGION_BASE_BOOL !! 616 source "drivers/parport/Kconfig"
171 bool "Set custom I/O region base addre !! 617
172 depends on ADVANCED_OPTIONS !! 618 endmenu
>> 619
>> 620 source "drivers/base/Kconfig"
>> 621
>> 622 source "drivers/mtd/Kconfig"
>> 623
>> 624 source "drivers/pnp/Kconfig"
>> 625
>> 626 source "drivers/block/Kconfig"
>> 627
>> 628 source "drivers/md/Kconfig"
>> 629
>> 630 source "drivers/ide/Kconfig"
>> 631
>> 632 source "drivers/scsi/Kconfig"
>> 633
>> 634 if PCI
>> 635 source "drivers/message/fusion/Kconfig"
>> 636 endif
>> 637
>> 638 source "drivers/ieee1394/Kconfig"
>> 639
>> 640 source "net/Kconfig"
>> 641
>> 642 source "drivers/isdn/Kconfig"
>> 643
>> 644 source "drivers/cdrom/Kconfig"
>> 645
>> 646 source "drivers/input/Kconfig"
>> 647
>> 648 source "drivers/char/Kconfig"
>> 649
>> 650 #source drivers/misc/Config.in
>> 651 source "drivers/media/Kconfig"
>> 652
>> 653 source "fs/Kconfig"
>> 654
>> 655 source "drivers/video/Kconfig"
>> 656
>> 657 source "sound/Kconfig"
>> 658
>> 659 source "drivers/usb/Kconfig"
>> 660
>> 661 source "arch/alpha/oprofile/Kconfig"
>> 662
>> 663 menu "Kernel hacking"
>> 664
>> 665 config ALPHA_LEGACY_START_ADDRESS
>> 666 bool "Legacy kernel start address"
>> 667 depends on ALPHA_GENERIC
>> 668 default n
>> 669 ---help---
>> 670 The 2.4 kernel changed the kernel start address from 0x310000
>> 671 to 0x810000 to make room for the Wildfire's larger SRM console.
>> 672 Recent consoles on Titan and Marvel machines also require the
>> 673 extra room.
>> 674
>> 675 If you're using aboot 0.7 or later, the bootloader will examine the
>> 676 ELF headers to determine where to transfer control. Unfortunately,
>> 677 most older bootloaders -- APB or MILO -- hardcoded the kernel start
>> 678 address rather than examining the ELF headers, and the result is a
>> 679 hard lockup.
>> 680
>> 681 Say Y if you have a broken bootloader. Say N if you do not, or if
>> 682 you wish to run on Wildfire, Titan, or Marvel.
>> 683
>> 684 config ALPHA_LEGACY_START_ADDRESS
>> 685 bool
>> 686 depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
>> 687 default y
>> 688
>> 689 config DEBUG_KERNEL
>> 690 bool "Kernel debugging"
173 help 691 help
174 This option allows you to set the vi !! 692 Say Y here if you are developing drivers or trying to debug and
>> 693 identify kernel problems.
175 694
176 Say N here unless you know what you !! 695 config MATHEMU
>> 696 tristate "Kernel FP software completion" if DEBUG_KERNEL
>> 697 default y if !DEBUG_KERNEL
>> 698 help
>> 699 This option is required for IEEE compliant floating point arithmetic
>> 700 on the Alpha. The only time you would ever not say Y is to say M in
>> 701 order to debug the code. Say Y unless you know what you are doing.
>> 702
>> 703 config DEBUG_SLAB
>> 704 bool "Debug memory allocations"
>> 705 depends on DEBUG_KERNEL
>> 706 help
>> 707 Say Y here to have the kernel do limited verification on memory
>> 708 allocation as well as poisoning memory on free to catch use of freed
>> 709 memory.
177 710
178 config NIOS2_IO_REGION_BASE !! 711 config MAGIC_SYSRQ
179 hex "Virtual base address of the I/O r !! 712 bool "Magic SysRq key"
180 default "0xe0000000" !! 713 depends on DEBUG_KERNEL
>> 714 help
>> 715 If you say Y here, you will have some control over the system even
>> 716 if the system crashes for example during kernel debugging (e.g., you
>> 717 will be able to flush the buffer cache to disk, reboot the system
>> 718 immediately or dump some status information). This is accomplished
>> 719 by pressing various keys while holding SysRq (Alt+PrintScreen). It
>> 720 also works on a serial console (on PC hardware at least), if you
>> 721 send a BREAK and then within 5 seconds a command keypress. The
>> 722 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
>> 723 unless you really know what this hack does.
>> 724
>> 725 config DEBUG_SPINLOCK
>> 726 bool "Spinlock debugging"
>> 727 depends on DEBUG_KERNEL
>> 728 help
>> 729 Say Y here and build SMP to catch missing spinlock initialization
>> 730 and certain other kinds of spinlock errors commonly made. This is
>> 731 best used in conjunction with the NMI watchdog so that spinlock
>> 732 deadlocks are also debuggable.
>> 733
>> 734 config DEBUG_RWLOCK
>> 735 bool "Read-write spinlock debugging"
>> 736 depends on DEBUG_KERNEL
>> 737 help
>> 738 If you say Y here then read-write lock processing will count how many
>> 739 times it has tried to get the lock and issue an error message after
>> 740 too many attempts. If you suspect a rwlock problem or a kernel
>> 741 hacker asks for this option then say Y. Otherwise say N.
>> 742
>> 743 config DEBUG_SEMAPHORE
>> 744 bool "Semaphore debugging"
>> 745 depends on DEBUG_KERNEL
>> 746 help
>> 747 If you say Y here then semaphore processing will issue lots of
>> 748 verbose debugging messages. If you suspect a semaphore problem or a
>> 749 kernel hacker asks for this option then say Y. Otherwise say N.
>> 750
>> 751 config DEBUG_INFO
>> 752 bool "Compile the kernel with debug info"
>> 753 depends on DEBUG_KERNEL
>> 754 help
>> 755 If you say Y here the resulting kernel image will include
>> 756 debugging info resulting in a larger kernel image.
>> 757 Say Y here only if you plan to use gdb to debug the kernel.
>> 758 If you don't debug the kernel, you can say N.
181 759
182 endmenu 760 endmenu
>> 761
>> 762 source "security/Kconfig"
>> 763
>> 764 source "crypto/Kconfig"
>> 765
>> 766 source "lib/Kconfig"
>> 767
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