1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config XTENSA !! 2 config ALPHA
3 def_bool y !! 3 bool
4 select ARCH_32BIT_OFF_T !! 4 default y
5 select ARCH_HAS_CPU_CACHE_ALIASING !! 5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select ARCH_HAS_BINFMT_FLAT if !MMU !! 6 select ARCH_MIGHT_HAVE_PC_SERIO
7 select ARCH_HAS_CURRENT_STACK_POINTER !! 7 select ARCH_NO_PREEMPT
8 select ARCH_HAS_DEBUG_VM_PGTABLE !! 8 select ARCH_USE_CMPXCHG_LOCKREF
9 select ARCH_HAS_DMA_PREP_COHERENT if M !! 9 select HAVE_AOUT
10 select ARCH_HAS_GCOV_PROFILE_ALL !! 10 select HAVE_IDE
11 select ARCH_HAS_KCOV !! 11 select HAVE_OPROFILE
12 select ARCH_HAS_SYNC_DMA_FOR_CPU if MM !! 12 select HAVE_PCSPKR_PLATFORM
13 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !! 13 select HAVE_PERF_EVENTS
14 select ARCH_HAS_DMA_SET_UNCACHED if MM !! 14 select NEED_DMA_MAP_STATE
15 select ARCH_HAS_STRNCPY_FROM_USER if ! !! 15 select NEED_SG_DMA_LENGTH
16 select ARCH_HAS_STRNLEN_USER !! 16 select VIRT_TO_BUS
17 select ARCH_NEED_CMPXCHG_1_EMU !! 17 select GENERIC_IRQ_PROBE
18 select ARCH_USE_MEMTEST !! 18 select AUTO_IRQ_AFFINITY if SMP
19 select ARCH_USE_QUEUED_RWLOCKS <<
20 select ARCH_USE_QUEUED_SPINLOCKS <<
21 select ARCH_WANT_IPC_PARSE_VERSION <<
22 select BUILDTIME_TABLE_SORT <<
23 select CLONE_BACKWARDS <<
24 select COMMON_CLK <<
25 select DMA_NONCOHERENT_MMAP if MMU <<
26 select GENERIC_ATOMIC64 <<
27 select GENERIC_IRQ_SHOW 19 select GENERIC_IRQ_SHOW
28 select GENERIC_LIB_CMPDI2 !! 20 select ARCH_WANT_IPC_PARSE_VERSION
29 select GENERIC_LIB_MULDI3 !! 21 select ARCH_HAVE_NMI_SAFE_CMPXCHG
30 select GENERIC_LIB_UCMPDI2 !! 22 select AUDIT_ARCH
31 select GENERIC_PCI_IOMAP !! 23 select GENERIC_CLOCKEVENTS
32 select GENERIC_SCHED_CLOCK !! 24 select GENERIC_CPU_VULNERABILITIES
33 select GENERIC_IOREMAP if MMU !! 25 select GENERIC_SMP_IDLE_THREAD
>> 26 select GENERIC_STRNCPY_FROM_USER
>> 27 select GENERIC_STRNLEN_USER
34 select HAVE_ARCH_AUDITSYSCALL 28 select HAVE_ARCH_AUDITSYSCALL
35 select HAVE_ARCH_JUMP_LABEL if !XIP_KE !! 29 select HAVE_MOD_ARCH_SPECIFIC
36 select HAVE_ARCH_KASAN if MMU && !XIP_ <<
37 select HAVE_ARCH_KCSAN <<
38 select HAVE_ARCH_SECCOMP_FILTER <<
39 select HAVE_ARCH_TRACEHOOK <<
40 select HAVE_ASM_MODVERSIONS <<
41 select HAVE_CONTEXT_TRACKING_USER <<
42 select HAVE_DEBUG_KMEMLEAK <<
43 select HAVE_DMA_CONTIGUOUS <<
44 select HAVE_EXIT_THREAD <<
45 select HAVE_FUNCTION_TRACER <<
46 select HAVE_GCC_PLUGINS if GCC_VERSION <<
47 select HAVE_HW_BREAKPOINT if PERF_EVEN <<
48 select HAVE_IRQ_TIME_ACCOUNTING <<
49 select HAVE_PAGE_SIZE_4KB <<
50 select HAVE_PCI <<
51 select HAVE_PERF_EVENTS <<
52 select HAVE_STACKPROTECTOR <<
53 select HAVE_SYSCALL_TRACEPOINTS <<
54 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
55 select IRQ_DOMAIN <<
56 select LOCK_MM_AND_FIND_VMA <<
57 select MODULES_USE_ELF_RELA 30 select MODULES_USE_ELF_RELA
58 select PERF_USE_VMALLOC !! 31 select ODD_RT_SIGACTION
59 select TRACE_IRQFLAGS_SUPPORT !! 32 select OLD_SIGSUSPEND
60 help !! 33 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
61 Xtensa processors are 32-bit RISC ma !! 34 help
62 primarily for embedded systems. The !! 35 The Alpha is a 64-bit general-purpose processor designed and
63 configurable and extensible. The Li !! 36 marketed by the Digital Equipment Corporation of blessed memory,
64 architecture supports all processor !! 37 now Hewlett-Packard. The Alpha Linux project has a home page at
65 with reasonable minimum requirements !! 38 <http://www.alphalinux.org/>.
66 a home page at <http://www.linux-xte <<
67 39
68 config GENERIC_HWEIGHT !! 40 config 64BIT
69 def_bool y 41 def_bool y
70 42
71 config ARCH_HAS_ILOG2_U32 !! 43 config MMU
72 def_bool n !! 44 bool
73 !! 45 default y
74 config ARCH_HAS_ILOG2_U64 <<
75 def_bool n <<
76 46
77 config ARCH_MTD_XIP !! 47 config RWSEM_GENERIC_SPINLOCK
78 def_bool y !! 48 bool
79 49
80 config NO_IOPORT_MAP !! 50 config RWSEM_XCHGADD_ALGORITHM
81 def_bool n !! 51 bool
>> 52 default y
82 53
83 config HZ !! 54 config ARCH_HAS_ILOG2_U32
84 int !! 55 bool
85 default 100 !! 56 default n
86 57
87 config LOCKDEP_SUPPORT !! 58 config ARCH_HAS_ILOG2_U64
88 def_bool y !! 59 bool
>> 60 default n
89 61
90 config STACKTRACE_SUPPORT !! 62 config GENERIC_CALIBRATE_DELAY
91 def_bool y !! 63 bool
>> 64 default y
92 65
93 config MMU !! 66 config ZONE_DMA
94 def_bool n !! 67 bool
95 select PFAULT !! 68 default y
96 69
97 config HAVE_XTENSA_GPIO32 !! 70 config GENERIC_ISA_DMA
98 def_bool n !! 71 bool
>> 72 default y
99 73
100 config KASAN_SHADOW_OFFSET !! 74 config PGTABLE_LEVELS
101 hex !! 75 int
102 default 0x6e400000 !! 76 default 3
103 77
104 config CPU_BIG_ENDIAN !! 78 config AUDIT_ARCH
105 def_bool $(success,test "$(shell,echo !! 79 bool
106 80
107 config CPU_LITTLE_ENDIAN !! 81 menu "System setup"
108 def_bool !CPU_BIG_ENDIAN <<
109 82
110 config CC_HAVE_CALL0_ABI !! 83 choice
111 def_bool $(success,test "$(shell,echo !! 84 prompt "Alpha system type"
>> 85 default ALPHA_GENERIC
>> 86 ---help---
>> 87 This is the system type of your hardware. A "generic" kernel will
>> 88 run on any supported Alpha system. However, if you configure a
>> 89 kernel for your specific system, it will be faster and smaller.
112 90
113 menu "Processor type and features" !! 91 To find out what type of Alpha system you have, you may want to
>> 92 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 93 <http://www.alphalinux.org/>. In summary:
114 94
115 choice !! 95 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
116 prompt "Xtensa Processor Configuration !! 96 Alpha-XL XL-233, XL-266
117 default XTENSA_VARIANT_FSF !! 97 AlphaBook1 Alpha laptop
>> 98 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 99 Cabriolet AlphaPC64, AlphaPCI64
>> 100 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 101 EB164 EB164 21164 evaluation board
>> 102 EB64+ EB64+ 21064 evaluation board
>> 103 EB66 EB66 21066 evaluation board
>> 104 EB66+ EB66+ 21066 evaluation board
>> 105 Jensen DECpc 150, DEC 2000 models 300, 500
>> 106 LX164 AlphaPC164-LX
>> 107 Lynx AS 2100A
>> 108 Miata Personal Workstation 433/500/600 a/au
>> 109 Marvel AlphaServer ES47 / ES80 / GS1280
>> 110 Mikasa AS 1000
>> 111 Noname AXPpci33, UDB (Multia)
>> 112 Noritake AS 1000A, AS 600A, AS 800
>> 113 PC164 AlphaPC164
>> 114 Rawhide AS 1200, AS 4000, AS 4100
>> 115 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 116 SX164 AlphaPC164-SX
>> 117 Sable AS 2000, AS 2100
>> 118 Shark DS 20L
>> 119 Takara Takara (OEM)
>> 120 Titan AlphaServer ES45 / DS25 / DS15
>> 121 Wildfire AlphaServer GS 40/80/160/320
118 122
119 config XTENSA_VARIANT_FSF !! 123 If you don't know what to do, choose "generic".
120 bool "fsf - default (not generic) conf <<
121 select MMU <<
122 124
123 config XTENSA_VARIANT_DC232B !! 125 config ALPHA_GENERIC
124 bool "dc232b - Diamond 232L Standard C !! 126 bool "Generic"
125 select MMU !! 127 depends on TTY
126 select HAVE_XTENSA_GPIO32 <<
127 help 128 help
128 This variant refers to Tensilica's D !! 129 A generic kernel will run on all supported Alpha hardware.
129 130
130 config XTENSA_VARIANT_DC233C !! 131 config ALPHA_ALCOR
131 bool "dc233c - Diamond 233L Standard C !! 132 bool "Alcor/Alpha-XLT"
132 select MMU <<
133 select HAVE_XTENSA_GPIO32 <<
134 help 133 help
135 This variant refers to Tensilica's D !! 134 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 135 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 136 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 137 controller (256-bit memory bus) and a PCI interface. It also does
>> 138 all the work required to support an external Bcache and to maintain
>> 139 memory coherence when a PCI device DMAs into (or out of) memory.
136 140
137 config XTENSA_VARIANT_CUSTOM !! 141 config ALPHA_XL
138 bool "Custom Xtensa processor configur !! 142 bool "Alpha-XL"
139 select HAVE_XTENSA_GPIO32 <<
140 help 143 help
141 Select this variant to use a custom !! 144 XL-233 and XL-266-based Alpha systems.
142 You will be prompted for a processor <<
143 endchoice <<
144 145
145 config XTENSA_VARIANT_CUSTOM_NAME !! 146 config ALPHA_BOOK1
146 string "Xtensa Processor Custom Core V !! 147 bool "AlphaBook1"
147 depends on XTENSA_VARIANT_CUSTOM <<
148 help <<
149 Provide the name of a custom Xtensa <<
150 This CORENAME selects arch/xtensa/va <<
151 Don't forget you have to select MMU <<
152 <<
153 config XTENSA_VARIANT_NAME <<
154 string <<
155 default "dc232b" <<
156 default "dc233c" <<
157 default "fsf" <<
158 default XTENSA_VARIANT_CUSTOM_NAME <<
159 <<
160 config XTENSA_VARIANT_MMU <<
161 bool "Core variant has a Full MMU (TLB <<
162 depends on XTENSA_VARIANT_CUSTOM <<
163 default y <<
164 select MMU <<
165 help <<
166 Build a Conventional Kernel with ful <<
167 ie: it supports a TLB with auto-load <<
168 <<
169 config XTENSA_VARIANT_HAVE_PERF_EVENTS <<
170 bool "Core variant has Performance Mon <<
171 depends on XTENSA_VARIANT_CUSTOM <<
172 default n <<
173 help 148 help
174 Enable if core variant has Performan !! 149 Dec AlphaBook1/Burns Alpha-based laptops.
175 External Registers Interface. <<
176 150
177 If unsure, say N. !! 151 config ALPHA_AVANTI_CH
>> 152 bool "Avanti"
178 153
179 config XTENSA_FAKE_NMI !! 154 config ALPHA_CABRIOLET
180 bool "Treat PMM IRQ as NMI" !! 155 bool "Cabriolet"
181 depends on XTENSA_VARIANT_HAVE_PERF_EV <<
182 default n <<
183 help 156 help
184 If PMM IRQ is the only IRQ at EXCM l !! 157 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
185 treat it as NMI, which improves accu !! 158 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
186 !! 159 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
187 If there are other interrupts at or !! 160 Bcache SIMMs. Requires power supply with 3.3V output.
188 but not above the EXCM level, PMM IR <<
189 but only if these IRQs are not used. <<
190 saying that this is not safe, and a <<
191 actually fire. <<
192 161
193 If unsure, say N. !! 162 config ALPHA_DP264
>> 163 bool "DP264"
>> 164 help
>> 165 Various 21264 systems with the tsunami core logic chipset.
>> 166 API Networks: 264DP, UP2000(+), CS20;
>> 167 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
194 168
195 config PFAULT !! 169 config ALPHA_EB164
196 bool "Handle protection faults" if EXP !! 170 bool "EB164"
197 default y <<
198 help 171 help
199 Handle protection faults. MMU config !! 172 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
200 noMMU configurations may disable it !! 173 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
201 generates protection faults or fault !! 174 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
>> 175 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 176 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 177 motherboard. Requires power supply with 3.3V output.
202 178
203 If unsure, say Y. !! 179 config ALPHA_EB64P_CH
>> 180 bool "EB64+"
204 181
205 config XTENSA_UNALIGNED_USER !! 182 config ALPHA_EB66
206 bool "Unaligned memory access in user !! 183 bool "EB66"
207 help 184 help
208 The Xtensa architecture currently do !! 185 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
209 memory accesses in hardware but thro !! 186 identical to EB64+. Baby PC-AT size. Runs from standard PC power
210 Per default, unaligned memory access !! 187 supply. The EB66 schematic was published as a marketing poster
>> 188 advertising the 21066 as "the first microprocessor in the world with
>> 189 embedded PCI".
211 190
212 Say Y here to enable unaligned memor !! 191 config ALPHA_EB66P
>> 192 bool "EB66+"
>> 193 help
>> 194 Later variant of the EB66 board.
>> 195
>> 196 config ALPHA_EIGER
>> 197 bool "Eiger"
>> 198 help
>> 199 Apparently an obscure OEM single-board computer based on the
>> 200 Typhoon/Tsunami chipset family. Information on it is scanty.
213 201
214 config XTENSA_LOAD_STORE !! 202 config ALPHA_JENSEN
215 bool "Load/store exception handler for !! 203 bool "Jensen"
>> 204 depends on BROKEN
>> 205 select DMA_DIRECT_OPS
216 help 206 help
217 The Xtensa architecture only allows !! 207 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
218 instruction bus with l32r and l32i i !! 208 of the first-generation Alpha systems. A number of these systems
219 instructions raise an exception with !! 209 seem to be available on the second- hand market. The Jensen is a
220 This makes it hard to use some confi !! 210 floor-standing tower system which originally used a 150MHz 21064 It
221 literals in FLASH memory attached to !! 211 used programmable logic to interface a 486 EISA I/O bridge to the
>> 212 CPU.
222 213
223 Say Y here to enable exception handl !! 214 config ALPHA_LX164
224 byte and 2-byte access to memory att !! 215 bool "LX164"
>> 216 help
>> 217 A technical overview of this board is available at
>> 218 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
225 219
226 config HAVE_SMP !! 220 config ALPHA_LYNX
227 bool "System Supports SMP (MX)" !! 221 bool "Lynx"
228 depends on XTENSA_VARIANT_CUSTOM <<
229 select XTENSA_MX <<
230 help 222 help
231 This option is used to indicate that !! 223 AlphaServer 2100A-based systems.
232 supports Multiprocessing. Multiproce <<
233 the CPU core definition and currentl <<
234 224
235 Multiprocessor support is implemente !! 225 config ALPHA_MARVEL
236 interrupt controllers. !! 226 bool "Marvel"
>> 227 help
>> 228 AlphaServer ES47 / ES80 / GS1280 based on EV7.
237 229
238 The MX interrupt distributer adds In !! 230 config ALPHA_MIATA
239 and causes the IRQ numbers to be inc !! 231 bool "Miata"
240 like the open cores ethernet driver !! 232 help
>> 233 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 234 or 600au).
241 235
242 You still have to select "Enable SMP !! 236 config ALPHA_MIKASA
>> 237 bool "Mikasa"
>> 238 help
>> 239 AlphaServer 1000-based Alpha systems.
243 240
244 config SMP !! 241 config ALPHA_NAUTILUS
245 bool "Enable Symmetric multi-processin !! 242 bool "Nautilus"
246 depends on HAVE_SMP <<
247 select GENERIC_SMP_IDLE_THREAD <<
248 help 243 help
249 Enabled SMP Software; allows more th !! 244 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
250 to be activated during startup. <<
251 245
252 config NR_CPUS !! 246 config ALPHA_NONAME_CH
253 depends on SMP !! 247 bool "Noname"
254 int "Maximum number of CPUs (2-32)" <<
255 range 2 32 <<
256 default "4" <<
257 248
258 config HOTPLUG_CPU !! 249 config ALPHA_NORITAKE
259 bool "Enable CPU hotplug support" !! 250 bool "Noritake"
260 depends on SMP <<
261 help 251 help
262 Say Y here to allow turning CPUs off !! 252 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
263 controlled through /sys/devices/syst !! 253 systems.
264 254
265 Say N if you want to disable CPU hot !! 255 config ALPHA_PC164
>> 256 bool "PC164"
266 257
267 config SECONDARY_RESET_VECTOR !! 258 config ALPHA_P2K
268 bool "Secondary cores use alternative !! 259 bool "Platform2000"
269 default y !! 260
270 depends on HAVE_SMP !! 261 config ALPHA_RAWHIDE
>> 262 bool "Rawhide"
271 help 263 help
272 Secondary cores may be configured to !! 264 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
273 or all cores may use primary reset v !! 265 See HOWTO at
274 Say Y here to supply handler for the !! 266 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
275 267
276 config FAST_SYSCALL_XTENSA !! 268 config ALPHA_RUFFIAN
277 bool "Enable fast atomic syscalls" !! 269 bool "Ruffian"
278 default n <<
279 help 270 help
280 fast_syscall_xtensa is a syscall tha !! 271 Samsung APC164UX. There is a page on known problems and workarounds
281 on UP kernel when processor has no s !! 272 at <http://www.alphalinux.org/faq/FAQ-11.html>.
282 273
283 This syscall is deprecated. It may h !! 274 config ALPHA_RX164
284 invalid arguments. It is provided on !! 275 bool "RX164"
285 Only enable it if your userspace sof <<
286 276
287 If unsure, say N. !! 277 config ALPHA_SX164
>> 278 bool "SX164"
288 279
289 config FAST_SYSCALL_SPILL_REGISTERS !! 280 config ALPHA_SABLE
290 bool "Enable spill registers syscall" !! 281 bool "Sable"
291 default n <<
292 help 282 help
293 fast_syscall_spill_registers is a sy !! 283 Digital AlphaServer 2000 and 2100-based systems.
294 register windows of a calling usersp <<
295 284
296 This syscall is deprecated. It may h !! 285 config ALPHA_SHARK
297 invalid arguments. It is provided on !! 286 bool "Shark"
298 Only enable it if your userspace sof <<
299 287
300 If unsure, say N. !! 288 config ALPHA_TAKARA
>> 289 bool "Takara"
>> 290 help
>> 291 Alpha 11164-based OEM single-board computer.
301 292
302 choice !! 293 config ALPHA_TITAN
303 prompt "Kernel ABI" !! 294 bool "Titan"
304 default KERNEL_ABI_DEFAULT <<
305 help 295 help
306 Select ABI for the kernel code. This !! 296 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
307 supported userspace ABI and any comb !! 297
308 kernel/userspace ABI is possible and !! 298 config ALPHA_WILDFIRE
309 !! 299 bool "Wildfire"
310 In case both kernel and userspace su !! 300 help
311 all register windows support code wi !! 301 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
312 build. <<
313 <<
314 If unsure, choose the default ABI. <<
315 <<
316 config KERNEL_ABI_DEFAULT <<
317 bool "Default ABI" <<
318 help <<
319 Select this option to compile kernel <<
320 selected for the toolchain. <<
321 Normally cores with windowed registe <<
322 cores without it use call0 ABI. <<
323 <<
324 config KERNEL_ABI_CALL0 <<
325 bool "Call0 ABI" if CC_HAVE_CALL0_ABI <<
326 help <<
327 Select this option to compile kernel <<
328 toolchain that defaults to windowed <<
329 When this option is not selected the <<
330 be used for the kernel code. <<
331 302
332 endchoice 303 endchoice
333 304
334 config USER_ABI_CALL0 !! 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
335 bool 309 bool
336 !! 310 default y
337 choice <<
338 prompt "Userspace ABI" <<
339 default USER_ABI_DEFAULT <<
340 help 311 help
341 Select supported userspace ABI. !! 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.
342 317
343 If unsure, choose the default ABI. !! 318 config ISA_DMA_API
>> 319 bool
>> 320 default y
344 321
345 config USER_ABI_DEFAULT !! 322 config PCI
346 bool "Default ABI only" !! 323 bool
>> 324 depends on !ALPHA_JENSEN
>> 325 select GENERIC_PCI_IOMAP
>> 326 default y
347 help 327 help
348 Assume default userspace ABI. For XE !! 328 Find out whether you have a PCI motherboard. PCI is the name of a
349 call0 ABI binaries may be run on suc !! 329 bus system, i.e. the way the CPU talks to the other stuff inside
350 will not work correctly for them. !! 330 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
>> 331 VESA. If you have PCI, say Y, otherwise N.
351 332
352 config USER_ABI_CALL0_ONLY !! 333 config PCI_DOMAINS
353 bool "Call0 ABI only" !! 334 bool
354 select USER_ABI_CALL0 !! 335 default y
355 help <<
356 Select this option to support only c <<
357 Windowed ABI binaries will crash wit <<
358 an illegal instruction exception on <<
359 336
360 Choose this option if you're plannin !! 337 config PCI_SYSCALL
361 built with call0 ABI. !! 338 def_bool PCI
362 339
363 config USER_ABI_CALL0_PROBE !! 340 config ALPHA_NONAME
364 bool "Support both windowed and call0 !! 341 bool
365 select USER_ABI_CALL0 !! 342 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
>> 343 default y
366 help 344 help
367 Select this option to support both w !! 345 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
368 ABIs. When enabled all processes are !! 346 UDB). This design was produced by Digital's Technical OEM (TOEM)
369 and a fast user exception handler fo !! 347 group. It uses the 21066 processor running at 166MHz or 233MHz. It
370 used to turn on PS.WOE bit on the fi !! 348 is a baby-AT size, and runs from a standard PC power supply. It has
371 the userspace. !! 349 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
372 !! 350 2 versions, with either PS/2 or large DIN connectors for the
373 This option should be enabled for th !! 351 keyboard.
374 both call0 and windowed ABIs in user <<
375 352
376 Note that Xtensa ISA does not guaran !! 353 config ALPHA_EV4
377 raise an illegal instruction excepti !! 354 bool
378 PS.WOE is disabled, check whether th !! 355 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
>> 356 default y if !ALPHA_LYNX
379 357
380 endchoice !! 358 config ALPHA_LCA
>> 359 bool
>> 360 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
>> 361 default y
381 362
382 endmenu !! 363 config ALPHA_APECS
>> 364 bool
>> 365 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 366 default y
383 367
384 config XTENSA_CALIBRATE_CCOUNT !! 368 config ALPHA_EB64P
385 def_bool n !! 369 bool
>> 370 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 371 default y
386 help 372 help
387 On some platforms (XT2000, for examp !! 373 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
388 vary. The frequency can be determin !! 374 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
389 against a well known, fixed frequenc !! 375 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 376 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 377 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 378 Runs from standard PC power supply.
>> 379
>> 380 config ALPHA_EV5
>> 381 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 382 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
>> 383
>> 384 config ALPHA_EV4
>> 385 bool
>> 386 default y if ALPHA_LYNX && !ALPHA_EV5
390 387
391 config SERIAL_CONSOLE !! 388 config ALPHA_CIA
392 def_bool n !! 389 bool
>> 390 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
>> 391 default y
393 392
394 config PLATFORM_HAVE_XIP !! 393 config ALPHA_EV56
395 def_bool n !! 394 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 395 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
396 396
397 menu "Platform options" !! 397 config ALPHA_EV56
>> 398 prompt "EV56 CPU (speed >= 333MHz)?"
>> 399 depends on ALPHA_NORITAKE || ALPHA_PRIMO
398 400
399 choice !! 401 config ALPHA_EV56
400 prompt "Xtensa System Type" !! 402 prompt "EV56 CPU (speed >= 400MHz)?"
401 default XTENSA_PLATFORM_ISS !! 403 depends on ALPHA_RAWHIDE
402 404
403 config XTENSA_PLATFORM_ISS !! 405 config ALPHA_PRIMO
404 bool "ISS" !! 406 bool "EV5 CPU daughtercard (model 5/xxx)?"
405 select XTENSA_CALIBRATE_CCOUNT !! 407 depends on ALPHA_NORITAKE || ALPHA_MIKASA
406 select SERIAL_CONSOLE <<
407 help <<
408 ISS is an acronym for Tensilica's In <<
409 <<
410 config XTENSA_PLATFORM_XT2000 <<
411 bool "XT2000" <<
412 help <<
413 XT2000 is the name of Tensilica's fe <<
414 This hardware is capable of running <<
415 <<
416 config XTENSA_PLATFORM_XTFPGA <<
417 bool "XTFPGA" <<
418 select ETHOC if ETHERNET <<
419 select PLATFORM_WANT_DEFAULT_MEM if !M <<
420 select SERIAL_CONSOLE <<
421 select XTENSA_CALIBRATE_CCOUNT <<
422 select PLATFORM_HAVE_XIP <<
423 help 408 help
424 XTFPGA is the name of Tensilica boar !! 409 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
425 This hardware is capable of running <<
426 410
427 endchoice !! 411 config ALPHA_GAMMA
>> 412 bool "EV5 CPU(s) (model 5/xxx)?"
>> 413 depends on ALPHA_SABLE
>> 414 help
>> 415 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
428 416
429 config PLATFORM_NR_IRQS !! 417 config ALPHA_GAMMA
430 int !! 418 bool
431 default 3 if XTENSA_PLATFORM_XT2000 !! 419 depends on ALPHA_LYNX
432 default 0 !! 420 default y
433 421
434 config XTENSA_CPU_CLOCK !! 422 config ALPHA_T2
435 int "CPU clock rate [MHz]" !! 423 bool
436 depends on !XTENSA_CALIBRATE_CCOUNT !! 424 depends on ALPHA_SABLE || ALPHA_LYNX
437 default 16 !! 425 default y
438 426
439 config GENERIC_CALIBRATE_DELAY !! 427 config ALPHA_PYXIS
440 bool "Auto calibration of the BogoMIPS !! 428 bool
441 help !! 429 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
442 The BogoMIPS value can easily be der !! 430 default y
443 431
444 config CMDLINE_BOOL !! 432 config ALPHA_EV6
445 bool "Default bootloader kernel argume !! 433 bool
>> 434 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 435 default y
446 436
447 config CMDLINE !! 437 config ALPHA_TSUNAMI
448 string "Initial kernel command string" !! 438 bool
449 depends on CMDLINE_BOOL !! 439 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
450 default "console=ttyS0,38400 root=/dev !! 440 default y
451 help <<
452 On some architectures (EBSA110 and C <<
453 for the boot loader to pass argument <<
454 architectures, you should supply som <<
455 time by entering them here. As a min <<
456 memory size and the root device (e.g <<
457 441
458 config USE_OF !! 442 config ALPHA_EV67
459 bool "Flattened Device Tree support" !! 443 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
460 select OF !! 444 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
461 select OF_EARLY_FLATTREE <<
462 help 445 help
463 Include support for flattened device !! 446 Is this a machine based on the EV67 core? If in doubt, select N here
>> 447 and the machine will be treated as an EV6.
464 448
465 config BUILTIN_DTB_SOURCE !! 449 config ALPHA_MCPCIA
466 string "DTB to build into the kernel i !! 450 bool
467 depends on OF !! 451 depends on ALPHA_RAWHIDE
>> 452 default y
468 453
469 config PARSE_BOOTPARAM !! 454 config ALPHA_POLARIS
470 bool "Parse bootparam block" !! 455 bool
>> 456 depends on ALPHA_RX164
471 default y 457 default y
472 help <<
473 Parse parameters passed to the kerne <<
474 be disabled if the kernel is known t <<
475 458
476 If unsure, say Y. !! 459 config ALPHA_IRONGATE
>> 460 bool
>> 461 depends on ALPHA_NAUTILUS
>> 462 default y
477 463
478 choice !! 464 config GENERIC_HWEIGHT
479 prompt "Semihosting interface" !! 465 bool
480 default XTENSA_SIMCALL_ISS !! 466 default y if !ALPHA_EV67
481 depends on XTENSA_PLATFORM_ISS <<
482 help <<
483 Choose semihosting interface that wi <<
484 block device and networking. <<
485 467
486 config XTENSA_SIMCALL_ISS !! 468 config ALPHA_AVANTI
487 bool "simcall" !! 469 bool
>> 470 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 471 default y
488 help 472 help
489 Use simcall instruction. simcall is !! 473 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
490 it does nothing on hardware. !! 474 Alphas. Info at
>> 475 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 476
>> 477 config ALPHA_BROKEN_IRQ_MASK
>> 478 bool
>> 479 depends on ALPHA_GENERIC || ALPHA_PC164
>> 480 default y
491 481
492 config XTENSA_SIMCALL_GDBIO !! 482 config VGA_HOSE
493 bool "GDBIO" !! 483 bool
>> 484 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
>> 485 default y
494 help 486 help
495 Use break instruction. It is availab !! 487 Support VGA on an arbitrary hose; needed for several platforms
496 is attached to it via JTAG. !! 488 which always have multiple hoses, and whose consoles support it.
497 489
498 endchoice <<
499 490
500 config BLK_DEV_SIMDISK !! 491 config ALPHA_QEMU
501 tristate "Host file-based simulated bl !! 492 bool "Run under QEMU emulation"
502 default n !! 493 depends on !ALPHA_GENERIC
503 depends on XTENSA_PLATFORM_ISS && BLOC !! 494 ---help---
504 help !! 495 Assume the presence of special features supported by QEMU PALcode
505 Create block devices that map to fil !! 496 that reduce the overhead of system emulation.
506 Device binding to host file may be c !! 497
507 interface provided the device is not !! 498 Generic kernels will auto-detect QEMU. But when building a
508 !! 499 system-specific kernel, the assumption is that we want to
509 config BLK_DEV_SIMDISK_COUNT !! 500 eliminate as many runtime tests as possible.
510 int "Number of host file-based simulat <<
511 range 1 10 <<
512 depends on BLK_DEV_SIMDISK <<
513 default 2 <<
514 help <<
515 This is the default minimal number o <<
516 Kernel/module parameter 'simdisk_cou <<
517 value at runtime. More file names (b <<
518 specified as parameters, simdisk_cou <<
519 <<
520 config SIMDISK0_FILENAME <<
521 string "Host filename for the first si <<
522 depends on BLK_DEV_SIMDISK = y <<
523 default "" <<
524 help <<
525 Attach a first simdisk to a host fil <<
526 contains a root file system. <<
527 <<
528 config SIMDISK1_FILENAME <<
529 string "Host filename for the second s <<
530 depends on BLK_DEV_SIMDISK = y && BLK_ <<
531 default "" <<
532 help <<
533 Another simulated disk in a host fil <<
534 storage. <<
535 <<
536 config XTFPGA_LCD <<
537 bool "Enable XTFPGA LCD driver" <<
538 depends on XTENSA_PLATFORM_XTFPGA <<
539 default n <<
540 help <<
541 There's a 2x16 LCD on most of XTFPGA <<
542 progress messages there during bootu <<
543 during board bringup. <<
544 501
545 If unsure, say N. 502 If unsure, say N.
546 503
547 config XTFPGA_LCD_BASE_ADDR !! 504
548 hex "XTFPGA LCD base address" !! 505 config ALPHA_SRM
549 depends on XTFPGA_LCD !! 506 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
550 default "0x0d0c0000" !! 507 depends on TTY
551 help !! 508 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
552 Base address of the LCD controller i !! 509 ---help---
553 Different boards from XTFPGA family !! 510 There are two different types of booting firmware on Alphas: SRM,
554 addresses. Please consult prototypin !! 511 which is command line driven, and ARC, which uses menus and arrow
555 the correct address. Wrong address h !! 512 keys. Details about the Linux/Alpha booting process are contained in
556 !! 513 the Linux/Alpha FAQ, accessible on the WWW from
557 config XTFPGA_LCD_8BIT_ACCESS !! 514 <http://www.alphalinux.org/>.
558 bool "Use 8-bit access to XTFPGA LCD" !! 515
559 depends on XTFPGA_LCD !! 516 The usual way to load Linux on an Alpha machine is to use MILO
560 default n !! 517 (a bootloader that lets you pass command line parameters to the
561 help !! 518 kernel just like lilo does for the x86 architecture) which can be
562 LCD may be connected with 4- or 8-bi !! 519 loaded either from ARC or can be installed directly as a permanent
563 only be used with 8-bit interface. P !! 520 firmware replacement from floppy (which requires changing a certain
564 guide for your board for the correct !! 521 jumper on the motherboard). If you want to do either of these, say N
565 !! 522 here. If MILO doesn't work on your system (true for Jensen
566 comment "Kernel memory layout" !! 523 motherboards), you can bypass it altogether and boot Linux directly
567 !! 524 from an SRM console; say Y here in order to do that. Note that you
568 config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX !! 525 won't be able to boot from an IDE disk using SRM.
569 bool "Initialize Xtensa MMU inside the <<
570 depends on !XTENSA_VARIANT_FSF && !XTE <<
571 default y if XTENSA_VARIANT_DC233C || <<
572 help <<
573 Earlier version initialized the MMU <<
574 before jumping to _startup in head.S <<
575 it was possible to place a software <<
576 then enter your normal kernel breakp <<
577 to the kernel mappings (0XC0000000). <<
578 <<
579 This unfortunately won't work for U- <<
580 work for using KEXEC to have a hot k <<
581 KDUMP. <<
582 <<
583 So now the MMU is initialized in hea <<
584 use hardware breakpoints (gdb 'hbrea <<
585 xt-gdb can't place a Software Breakp <<
586 to mapping the MMU and after mapping <<
587 was mapped gdb wouldn't remove the b <<
588 PC wouldn't match. Since Hardware Br <<
589 Linux configurations it seems reason <<
590 and leave this older mechanism for u <<
591 not to follow Tensilica's recommenda <<
592 <<
593 Selecting this will cause U-Boot to <<
594 address at 0x00003000 instead of the <<
595 <<
596 If in doubt, say Y. <<
597 <<
598 config XIP_KERNEL <<
599 bool "Kernel Execute-In-Place from ROM <<
600 depends on PLATFORM_HAVE_XIP <<
601 help <<
602 Execute-In-Place allows the kernel t <<
603 directly addressable by the CPU, suc <<
604 space since the text section of the <<
605 to RAM. Read-write sections, such as <<
606 are still copied to RAM. The XIP ker <<
607 it has to run directly from flash, s <<
608 store it. The flash address used to <<
609 and for storing it, is configuration <<
610 say Y here, you must know the proper <<
611 store the kernel image depending on <<
612 <<
613 Also note that the make target becom <<
614 "make Image" or "make uImage". The f <<
615 ROM memory will be arch/xtensa/boot/ <<
616 526
617 If unsure, say N. 527 If unsure, say N.
618 528
619 config MEMMAP_CACHEATTR !! 529 config EISA
620 hex "Cache attributes for the memory a !! 530 bool
621 depends on !MMU !! 531 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
622 default 0x22222222 !! 532 default y
623 help <<
624 These cache attributes are set up fo <<
625 specifies cache attributes for the c <<
626 region: bits 0..3 -- for addresses 0 <<
627 bits 4..7 -- for addresses 0x2000000 <<
628 <<
629 Cache attribute values are specific <<
630 For region protection MMUs: <<
631 1: WT cached, <<
632 2: cache bypass, <<
633 4: WB cached, <<
634 f: illegal. <<
635 For full MMU: <<
636 bit 0: executable, <<
637 bit 1: writable, <<
638 bits 2..3: <<
639 0: cache bypass, <<
640 1: WB cache, <<
641 2: WT cache, <<
642 3: special (c and e are illegal, <<
643 For MPU: <<
644 0: illegal, <<
645 1: WB cache, <<
646 2: WB, no-write-allocate cache, <<
647 3: WT cache, <<
648 4: cache bypass. <<
649 <<
650 config KSEG_PADDR <<
651 hex "Physical address of the KSEG mapp <<
652 depends on INITIALIZE_XTENSA_MMU_INSID <<
653 default 0x00000000 <<
654 help <<
655 This is the physical address where K <<
656 the chosen KSEG layout help for the <<
657 Unpacked kernel image (including vec <<
658 within KSEG. <<
659 Physical memory below this address i <<
660 <<
661 If unsure, leave the default value h <<
662 <<
663 config KERNEL_VIRTUAL_ADDRESS <<
664 hex "Kernel virtual address" <<
665 depends on MMU && XIP_KERNEL <<
666 default 0xd0003000 <<
667 help <<
668 This is the virtual address where th <<
669 XIP kernel may be mapped into KSEG o <<
670 provided here must match kernel load <<
671 KERNEL_LOAD_ADDRESS. <<
672 <<
673 config KERNEL_LOAD_ADDRESS <<
674 hex "Kernel load address" <<
675 default 0x60003000 if !MMU <<
676 default 0x00003000 if MMU && INITIALIZ <<
677 default 0xd0003000 if MMU && !INITIALI <<
678 help <<
679 This is the address where the kernel <<
680 It is virtual address for MMUv2 conf <<
681 for all other configurations. <<
682 533
683 If unsure, leave the default value h !! 534 config ARCH_MAY_HAVE_PC_FDC
>> 535 def_bool y
684 536
685 choice !! 537 config SMP
686 prompt "Relocatable vectors location" !! 538 bool "Symmetric multi-processing support"
687 default XTENSA_VECTORS_IN_TEXT !! 539 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
688 help !! 540 ---help---
689 Choose whether relocatable vectors a !! 541 This enables support for systems with more than one CPU. If you have
690 or placed separately at runtime. Thi !! 542 a system with only one CPU, say N. If you have a system with more
691 configurations without VECBASE regis !! 543 than one CPU, say Y.
692 placed at their hardware-defined loc !! 544
693 !! 545 If you say N here, the kernel will run on uni- and multiprocessor
694 config XTENSA_VECTORS_IN_TEXT !! 546 machines, but will use only one CPU of a multiprocessor machine. If
695 bool "Merge relocatable vectors into k !! 547 you say Y here, the kernel will run on many, but not all,
696 depends on !MTD_XIP !! 548 uniprocessor machines. On a uniprocessor machine, the kernel
697 help !! 549 will run faster if you say N here.
698 This option puts relocatable vectors <<
699 with proper alignment. <<
700 This is a safe choice for most confi <<
701 <<
702 config XTENSA_VECTORS_SEPARATE <<
703 bool "Put relocatable vectors at fixed <<
704 help <<
705 This option puts relocatable vectors <<
706 Vectors are merged with the .init da <<
707 are copied into their designated loc <<
708 Use it to put vectors into IRAM or o <<
709 XIP-aware MTD support. <<
710 550
711 endchoice !! 551 See also the SMP-HOWTO available at
>> 552 <http://www.tldp.org/docs.html#howto>.
712 553
713 config VECTORS_ADDR !! 554 If you don't know what to do here, say N.
714 hex "Kernel vectors virtual address" !! 555
715 default 0x00000000 !! 556 config NR_CPUS
716 depends on XTENSA_VECTORS_SEPARATE !! 557 int "Maximum number of CPUs (2-32)"
717 help !! 558 range 2 32
718 This is the virtual address of the ( !! 559 depends on SMP
719 It must be within KSEG if MMU is use !! 560 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
720 !! 561 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
721 config XIP_DATA_ADDR <<
722 hex "XIP kernel data virtual address" <<
723 depends on XIP_KERNEL <<
724 default 0x00000000 <<
725 help <<
726 This is the virtual address where XI <<
727 It must be within KSEG if MMU is use <<
728 <<
729 config PLATFORM_WANT_DEFAULT_MEM <<
730 def_bool n <<
731 <<
732 config DEFAULT_MEM_START <<
733 hex <<
734 prompt "PAGE_OFFSET/PHYS_OFFSET" if !M <<
735 default 0x60000000 if PLATFORM_WANT_DE <<
736 default 0x00000000 <<
737 help 562 help
738 This is the base address used for bo !! 563 MARVEL support can handle a maximum of 32 CPUs, all the others
739 in noMMU configurations. !! 564 with working support have a maximum of 4 CPUs.
740 565
741 If unsure, leave the default value h !! 566 config ARCH_DISCONTIGMEM_ENABLE
>> 567 bool "Discontiguous Memory Support"
>> 568 help
>> 569 Say Y to support efficient handling of discontiguous physical memory,
>> 570 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 571 or have huge holes in the physical address space for other reasons.
>> 572 See <file:Documentation/vm/numa.rst> for more.
>> 573
>> 574 config NUMA
>> 575 bool "NUMA Support (EXPERIMENTAL)"
>> 576 depends on DISCONTIGMEM && BROKEN
>> 577 help
>> 578 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 579 Access). This option is for configuring high-end multiprocessor
>> 580 server machines. If in doubt, say N.
>> 581
>> 582 config ALPHA_WTINT
>> 583 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 584 default y if ALPHA_QEMU
>> 585 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 586 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 587 default y if SMP
>> 588 ---help---
>> 589 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 590 to sleep until the next interrupt. This may reduce the power
>> 591 consumed, and the heat produced by the computer. However, it has
>> 592 the side effect of making the cycle counter unreliable as a timing
>> 593 device across the sleep.
742 594
743 choice !! 595 For emulation under QEMU, definitely say Y here, as we have other
744 prompt "KSEG layout" !! 596 mechanisms for measuring time than the cycle counter.
745 depends on MMU <<
746 default XTENSA_KSEG_MMU_V2 <<
747 <<
748 config XTENSA_KSEG_MMU_V2 <<
749 bool "MMUv2: 128MB cached + 128MB unca <<
750 help <<
751 MMUv2 compatible kernel memory map: <<
752 at KSEG_PADDR to 0xd0000000 with cac <<
753 without cache. <<
754 KSEG_PADDR must be aligned to 128MB. <<
755 <<
756 config XTENSA_KSEG_256M <<
757 bool "256MB cached + 256MB uncached" <<
758 depends on INITIALIZE_XTENSA_MMU_INSID <<
759 help <<
760 TLB way 6 maps 256MB starting at KSE <<
761 with cache and to 0xc0000000 without <<
762 KSEG_PADDR must be aligned to 256MB. <<
763 <<
764 config XTENSA_KSEG_512M <<
765 bool "512MB cached + 512MB uncached" <<
766 depends on INITIALIZE_XTENSA_MMU_INSID <<
767 help <<
768 TLB way 6 maps 512MB starting at KSE <<
769 with cache and to 0xc0000000 without <<
770 KSEG_PADDR must be aligned to 256MB. <<
771 597
772 endchoice !! 598 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
>> 599 MILO, sleep mode is not supported so you might as well say N here.
773 600
774 config HIGHMEM !! 601 For SMP systems we cannot use the cycle counter for timing anyway,
775 bool "High Memory Support" !! 602 so you might as well say Y here.
776 depends on MMU <<
777 select KMAP_LOCAL <<
778 help <<
779 Linux can use the full amount of RAM <<
780 default. However, the default MMUv2 <<
781 lowermost 128 MB of memory linearly <<
782 at 0xd0000000 (cached) and 0xd800000 <<
783 When there are more than 128 MB memo <<
784 all of it can be "permanently mapped <<
785 The physical memory that's not perma <<
786 "high memory". <<
787 <<
788 If you are compiling a kernel which <<
789 machine with more than 128 MB total <<
790 N here. <<
791 <<
792 If unsure, say Y. <<
793 <<
794 config ARCH_FORCE_MAX_ORDER <<
795 int "Order of maximal physically conti <<
796 default "10" <<
797 help <<
798 The kernel page allocator limits the <<
799 contiguous allocations. The limit is <<
800 defines the maximal power of two of <<
801 allocated as a single contiguous blo <<
802 overriding the default setting when <<
803 large blocks of physically contiguou <<
804 603
805 Don't change if unsure. !! 604 If unsure, say N.
806 605
807 endmenu !! 606 config NODES_SHIFT
>> 607 int
>> 608 default "7"
>> 609 depends on NEED_MULTIPLE_NODES
808 610
809 menu "Power management options" !! 611 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 612 config ALPHA_LARGE_VMALLOC
>> 613 bool
>> 614 ---help---
>> 615 Process creation and other aspects of virtual memory management can
>> 616 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 617 allocations. This equates to about 8GB.
>> 618
>> 619 Under normal circumstances, this is so far and above what is needed
>> 620 as to be laughable. However, there are certain applications (such
>> 621 as benchmark-grade in-kernel web serving) that can make use of as
>> 622 much vmalloc space as is available.
>> 623
>> 624 Say N unless you know you need gobs and gobs of vmalloc space.
>> 625
>> 626 config VERBOSE_MCHECK
>> 627 bool "Verbose Machine Checks"
>> 628
>> 629 config VERBOSE_MCHECK_ON
>> 630 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 631 depends on VERBOSE_MCHECK
>> 632 default 1
>> 633 ---help---
>> 634 This option allows the default printing mode to be set, and then
>> 635 possibly overridden by a boot command argument.
>> 636
>> 637 For example, if one wanted the option of printing verbose
>> 638 machine checks, but wanted the default to be as if verbose
>> 639 machine check printing was turned off, then one would choose
>> 640 the printing mode to be 0. Then, upon reboot, one could add
>> 641 the boot command line "verbose_mcheck=1" to get the normal
>> 642 verbose machine check printing, or "verbose_mcheck=2" to get
>> 643 the maximum information available.
810 644
811 config ARCH_HIBERNATION_POSSIBLE !! 645 Take the default (1) unless you want more control or more info.
812 def_bool y !! 646
>> 647 choice
>> 648 prompt "Timer interrupt frequency (HZ)?"
>> 649 default HZ_128 if ALPHA_QEMU
>> 650 default HZ_1200 if ALPHA_RAWHIDE
>> 651 default HZ_1024
>> 652 ---help---
>> 653 The frequency at which timer interrupts occur. A high frequency
>> 654 minimizes latency, whereas a low frequency minimizes overhead of
>> 655 process accounting. The later effect is especially significant
>> 656 when being run under QEMU.
>> 657
>> 658 Note that some Alpha hardware cannot change the interrupt frequency
>> 659 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 660
>> 661 config HZ_32
>> 662 bool "32 Hz"
>> 663 config HZ_64
>> 664 bool "64 Hz"
>> 665 config HZ_128
>> 666 bool "128 Hz"
>> 667 config HZ_256
>> 668 bool "256 Hz"
>> 669 config HZ_1024
>> 670 bool "1024 Hz"
>> 671 config HZ_1200
>> 672 bool "1200 Hz"
>> 673 endchoice
813 674
814 source "kernel/power/Kconfig" !! 675 config HZ
>> 676 int
>> 677 default 32 if HZ_32
>> 678 default 64 if HZ_64
>> 679 default 128 if HZ_128
>> 680 default 256 if HZ_256
>> 681 default 1200 if HZ_1200
>> 682 default 1024
>> 683
>> 684 source "drivers/pci/Kconfig"
>> 685 source "drivers/eisa/Kconfig"
>> 686
>> 687 source "drivers/pcmcia/Kconfig"
>> 688
>> 689 config SRM_ENV
>> 690 tristate "SRM environment through procfs"
>> 691 depends on PROC_FS
>> 692 ---help---
>> 693 If you enable this option, a subdirectory inside /proc called
>> 694 /proc/srm_environment will give you access to the all important
>> 695 SRM environment variables (those which have a name) and also
>> 696 to all others (by their internal number).
>> 697
>> 698 SRM is something like a BIOS for Alpha machines. There are some
>> 699 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 700 support (hey, that's not SRM!).
>> 701
>> 702 Despite the fact that this driver doesn't work on all Alphas (but
>> 703 only on those which have SRM as their firmware), it's save to
>> 704 build it even if your particular machine doesn't know about SRM
>> 705 (or if you intend to compile a generic kernel). It will simply
>> 706 not create those subdirectory in /proc (and give you some warning,
>> 707 of course).
>> 708
>> 709 This driver is also available as a module and will be called
>> 710 srm_env then.
815 711
816 endmenu 712 endmenu
>> 713
>> 714 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 715 # but we also need it if VGA_HOSE is set
>> 716 config DUMMY_CONSOLE
>> 717 bool
>> 718 depends on VGA_HOSE
>> 719 default y
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