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_USE_CMPXCHG_LOCKREF
8 select ARCH_HAS_DEBUG_VM_PGTABLE !! 8 select HAVE_AOUT
9 select ARCH_HAS_DMA_PREP_COHERENT if M !! 9 select HAVE_IDE
10 select ARCH_HAS_GCOV_PROFILE_ALL !! 10 select HAVE_OPROFILE
11 select ARCH_HAS_KCOV !! 11 select HAVE_PCSPKR_PLATFORM
12 select ARCH_HAS_SYNC_DMA_FOR_CPU if MM !! 12 select HAVE_PERF_EVENTS
13 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if !! 13 select VIRT_TO_BUS
14 select ARCH_HAS_DMA_SET_UNCACHED if MM !! 14 select GENERIC_IRQ_PROBE
15 select ARCH_HAS_STRNCPY_FROM_USER if ! !! 15 select AUTO_IRQ_AFFINITY if SMP
16 select ARCH_HAS_STRNLEN_USER <<
17 select ARCH_NEED_CMPXCHG_1_EMU <<
18 select ARCH_USE_MEMTEST <<
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 16 select GENERIC_IRQ_SHOW
28 select GENERIC_LIB_CMPDI2 !! 17 select ARCH_WANT_IPC_PARSE_VERSION
29 select GENERIC_LIB_MULDI3 !! 18 select ARCH_HAVE_NMI_SAFE_CMPXCHG
30 select GENERIC_LIB_UCMPDI2 !! 19 select AUDIT_ARCH
31 select GENERIC_PCI_IOMAP !! 20 select GENERIC_CLOCKEVENTS
32 select GENERIC_SCHED_CLOCK !! 21 select GENERIC_SMP_IDLE_THREAD
33 select GENERIC_IOREMAP if MMU !! 22 select GENERIC_STRNCPY_FROM_USER
>> 23 select GENERIC_STRNLEN_USER
34 select HAVE_ARCH_AUDITSYSCALL 24 select HAVE_ARCH_AUDITSYSCALL
35 select HAVE_ARCH_JUMP_LABEL if !XIP_KE !! 25 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 26 select MODULES_USE_ELF_RELA
58 select PERF_USE_VMALLOC !! 27 select ODD_RT_SIGACTION
59 select TRACE_IRQFLAGS_SUPPORT !! 28 select OLD_SIGSUSPEND
60 help !! 29 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
61 Xtensa processors are 32-bit RISC ma !! 30 help
62 primarily for embedded systems. The !! 31 The Alpha is a 64-bit general-purpose processor designed and
63 configurable and extensible. The Li !! 32 marketed by the Digital Equipment Corporation of blessed memory,
64 architecture supports all processor !! 33 now Hewlett-Packard. The Alpha Linux project has a home page at
65 with reasonable minimum requirements !! 34 <http://www.alphalinux.org/>.
66 a home page at <http://www.linux-xte <<
67 35
68 config GENERIC_HWEIGHT !! 36 config 64BIT
69 def_bool y 37 def_bool y
70 38
>> 39 config MMU
>> 40 bool
>> 41 default y
>> 42
>> 43 config RWSEM_GENERIC_SPINLOCK
>> 44 bool
>> 45
>> 46 config RWSEM_XCHGADD_ALGORITHM
>> 47 bool
>> 48 default y
>> 49
71 config ARCH_HAS_ILOG2_U32 50 config ARCH_HAS_ILOG2_U32
72 def_bool n !! 51 bool
>> 52 default n
73 53
74 config ARCH_HAS_ILOG2_U64 54 config ARCH_HAS_ILOG2_U64
75 def_bool n !! 55 bool
76 !! 56 default n
77 config ARCH_MTD_XIP <<
78 def_bool y <<
79 57
80 config NO_IOPORT_MAP !! 58 config GENERIC_CALIBRATE_DELAY
81 def_bool n !! 59 bool
>> 60 default y
82 61
83 config HZ !! 62 config ZONE_DMA
84 int !! 63 bool
85 default 100 !! 64 default y
86 65
87 config LOCKDEP_SUPPORT !! 66 config ARCH_DMA_ADDR_T_64BIT
88 def_bool y 67 def_bool y
89 68
90 config STACKTRACE_SUPPORT !! 69 config NEED_DMA_MAP_STATE
>> 70 def_bool y
>> 71
>> 72 config NEED_SG_DMA_LENGTH
91 def_bool y 73 def_bool y
92 74
93 config MMU !! 75 config GENERIC_ISA_DMA
94 def_bool n !! 76 bool
95 select PFAULT !! 77 default y
96 78
97 config HAVE_XTENSA_GPIO32 !! 79 config PGTABLE_LEVELS
98 def_bool n !! 80 int
>> 81 default 3
99 82
100 config KASAN_SHADOW_OFFSET !! 83 source "init/Kconfig"
101 hex !! 84 source "kernel/Kconfig.freezer"
102 default 0x6e400000 <<
103 85
104 config CPU_BIG_ENDIAN !! 86 config AUDIT_ARCH
105 def_bool $(success,test "$(shell,echo !! 87 bool
106 88
107 config CPU_LITTLE_ENDIAN !! 89 menu "System setup"
108 def_bool !CPU_BIG_ENDIAN <<
109 90
110 config CC_HAVE_CALL0_ABI !! 91 choice
111 def_bool $(success,test "$(shell,echo !! 92 prompt "Alpha system type"
>> 93 default ALPHA_GENERIC
>> 94 ---help---
>> 95 This is the system type of your hardware. A "generic" kernel will
>> 96 run on any supported Alpha system. However, if you configure a
>> 97 kernel for your specific system, it will be faster and smaller.
112 98
113 menu "Processor type and features" !! 99 To find out what type of Alpha system you have, you may want to
>> 100 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 101 <http://www.alphalinux.org/>. In summary:
114 102
115 choice !! 103 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
116 prompt "Xtensa Processor Configuration !! 104 Alpha-XL XL-233, XL-266
117 default XTENSA_VARIANT_FSF !! 105 AlphaBook1 Alpha laptop
>> 106 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 107 Cabriolet AlphaPC64, AlphaPCI64
>> 108 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 109 EB164 EB164 21164 evaluation board
>> 110 EB64+ EB64+ 21064 evaluation board
>> 111 EB66 EB66 21066 evaluation board
>> 112 EB66+ EB66+ 21066 evaluation board
>> 113 Jensen DECpc 150, DEC 2000 models 300, 500
>> 114 LX164 AlphaPC164-LX
>> 115 Lynx AS 2100A
>> 116 Miata Personal Workstation 433/500/600 a/au
>> 117 Marvel AlphaServer ES47 / ES80 / GS1280
>> 118 Mikasa AS 1000
>> 119 Noname AXPpci33, UDB (Multia)
>> 120 Noritake AS 1000A, AS 600A, AS 800
>> 121 PC164 AlphaPC164
>> 122 Rawhide AS 1200, AS 4000, AS 4100
>> 123 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 124 SX164 AlphaPC164-SX
>> 125 Sable AS 2000, AS 2100
>> 126 Shark DS 20L
>> 127 Takara Takara (OEM)
>> 128 Titan AlphaServer ES45 / DS25 / DS15
>> 129 Wildfire AlphaServer GS 40/80/160/320
118 130
119 config XTENSA_VARIANT_FSF !! 131 If you don't know what to do, choose "generic".
120 bool "fsf - default (not generic) conf <<
121 select MMU <<
122 132
123 config XTENSA_VARIANT_DC232B !! 133 config ALPHA_GENERIC
124 bool "dc232b - Diamond 232L Standard C !! 134 bool "Generic"
125 select MMU !! 135 depends on TTY
126 select HAVE_XTENSA_GPIO32 <<
127 help 136 help
128 This variant refers to Tensilica's D !! 137 A generic kernel will run on all supported Alpha hardware.
129 138
130 config XTENSA_VARIANT_DC233C !! 139 config ALPHA_ALCOR
131 bool "dc233c - Diamond 233L Standard C !! 140 bool "Alcor/Alpha-XLT"
132 select MMU <<
133 select HAVE_XTENSA_GPIO32 <<
134 help 141 help
135 This variant refers to Tensilica's D !! 142 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 143 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 144 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 145 controller (256-bit memory bus) and a PCI interface. It also does
>> 146 all the work required to support an external Bcache and to maintain
>> 147 memory coherence when a PCI device DMAs into (or out of) memory.
136 148
137 config XTENSA_VARIANT_CUSTOM !! 149 config ALPHA_XL
138 bool "Custom Xtensa processor configur !! 150 bool "Alpha-XL"
139 select HAVE_XTENSA_GPIO32 <<
140 help 151 help
141 Select this variant to use a custom !! 152 XL-233 and XL-266-based Alpha systems.
142 You will be prompted for a processor <<
143 endchoice <<
144 153
145 config XTENSA_VARIANT_CUSTOM_NAME !! 154 config ALPHA_BOOK1
146 string "Xtensa Processor Custom Core V !! 155 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 156 help
174 Enable if core variant has Performan !! 157 Dec AlphaBook1/Burns Alpha-based laptops.
175 External Registers Interface. <<
176 158
177 If unsure, say N. !! 159 config ALPHA_AVANTI_CH
>> 160 bool "Avanti"
178 161
179 config XTENSA_FAKE_NMI !! 162 config ALPHA_CABRIOLET
180 bool "Treat PMM IRQ as NMI" !! 163 bool "Cabriolet"
181 depends on XTENSA_VARIANT_HAVE_PERF_EV <<
182 default n <<
183 help 164 help
184 If PMM IRQ is the only IRQ at EXCM l !! 165 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
185 treat it as NMI, which improves accu !! 166 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
186 !! 167 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
187 If there are other interrupts at or !! 168 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. <<
192 169
193 If unsure, say N. !! 170 config ALPHA_DP264
>> 171 bool "DP264"
>> 172 help
>> 173 Various 21264 systems with the tsunami core logic chipset.
>> 174 API Networks: 264DP, UP2000(+), CS20;
>> 175 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
194 176
195 config PFAULT !! 177 config ALPHA_EB164
196 bool "Handle protection faults" if EXP !! 178 bool "EB164"
197 default y <<
198 help 179 help
199 Handle protection faults. MMU config !! 180 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
200 noMMU configurations may disable it !! 181 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
201 generates protection faults or fault !! 182 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
>> 183 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 184 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 185 motherboard. Requires power supply with 3.3V output.
202 186
203 If unsure, say Y. !! 187 config ALPHA_EB64P_CH
>> 188 bool "EB64+"
204 189
205 config XTENSA_UNALIGNED_USER !! 190 config ALPHA_EB66
206 bool "Unaligned memory access in user !! 191 bool "EB66"
207 help 192 help
208 The Xtensa architecture currently do !! 193 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
209 memory accesses in hardware but thro !! 194 identical to EB64+. Baby PC-AT size. Runs from standard PC power
210 Per default, unaligned memory access !! 195 supply. The EB66 schematic was published as a marketing poster
>> 196 advertising the 21066 as "the first microprocessor in the world with
>> 197 embedded PCI".
211 198
212 Say Y here to enable unaligned memor !! 199 config ALPHA_EB66P
>> 200 bool "EB66+"
>> 201 help
>> 202 Later variant of the EB66 board.
213 203
214 config XTENSA_LOAD_STORE !! 204 config ALPHA_EIGER
215 bool "Load/store exception handler for !! 205 bool "Eiger"
216 help 206 help
217 The Xtensa architecture only allows !! 207 Apparently an obscure OEM single-board computer based on the
218 instruction bus with l32r and l32i i !! 208 Typhoon/Tsunami chipset family. Information on it is scanty.
219 instructions raise an exception with <<
220 This makes it hard to use some confi <<
221 literals in FLASH memory attached to <<
222 209
223 Say Y here to enable exception handl !! 210 config ALPHA_JENSEN
224 byte and 2-byte access to memory att !! 211 bool "Jensen"
>> 212 help
>> 213 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 214 of the first-generation Alpha systems. A number of these systems
>> 215 seem to be available on the second- hand market. The Jensen is a
>> 216 floor-standing tower system which originally used a 150MHz 21064 It
>> 217 used programmable logic to interface a 486 EISA I/O bridge to the
>> 218 CPU.
225 219
226 config HAVE_SMP !! 220 config ALPHA_LX164
227 bool "System Supports SMP (MX)" !! 221 bool "LX164"
228 depends on XTENSA_VARIANT_CUSTOM <<
229 select XTENSA_MX <<
230 help 222 help
231 This option is used to indicate that !! 223 A technical overview of this board is available at
232 supports Multiprocessing. Multiproce !! 224 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
233 the CPU core definition and currentl <<
234 225
235 Multiprocessor support is implemente !! 226 config ALPHA_LYNX
236 interrupt controllers. !! 227 bool "Lynx"
>> 228 help
>> 229 AlphaServer 2100A-based systems.
237 230
238 The MX interrupt distributer adds In !! 231 config ALPHA_MARVEL
239 and causes the IRQ numbers to be inc !! 232 bool "Marvel"
240 like the open cores ethernet driver !! 233 help
>> 234 AlphaServer ES47 / ES80 / GS1280 based on EV7.
241 235
242 You still have to select "Enable SMP !! 236 config ALPHA_MIATA
>> 237 bool "Miata"
>> 238 help
>> 239 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
>> 240 or 600au).
243 241
244 config SMP !! 242 config ALPHA_MIKASA
245 bool "Enable Symmetric multi-processin !! 243 bool "Mikasa"
246 depends on HAVE_SMP <<
247 select GENERIC_SMP_IDLE_THREAD <<
248 help 244 help
249 Enabled SMP Software; allows more th !! 245 AlphaServer 1000-based Alpha systems.
250 to be activated during startup. <<
251 246
252 config NR_CPUS !! 247 config ALPHA_NAUTILUS
253 depends on SMP !! 248 bool "Nautilus"
254 int "Maximum number of CPUs (2-32)" !! 249 help
255 range 2 32 !! 250 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
256 default "4" <<
257 251
258 config HOTPLUG_CPU !! 252 config ALPHA_NONAME_CH
259 bool "Enable CPU hotplug support" !! 253 bool "Noname"
260 depends on SMP !! 254
>> 255 config ALPHA_NORITAKE
>> 256 bool "Noritake"
261 help 257 help
262 Say Y here to allow turning CPUs off !! 258 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
263 controlled through /sys/devices/syst !! 259 systems.
264 260
265 Say N if you want to disable CPU hot !! 261 config ALPHA_PC164
>> 262 bool "PC164"
266 263
267 config SECONDARY_RESET_VECTOR !! 264 config ALPHA_P2K
268 bool "Secondary cores use alternative !! 265 bool "Platform2000"
269 default y !! 266
270 depends on HAVE_SMP !! 267 config ALPHA_RAWHIDE
>> 268 bool "Rawhide"
271 help 269 help
272 Secondary cores may be configured to !! 270 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
273 or all cores may use primary reset v !! 271 See HOWTO at
274 Say Y here to supply handler for the !! 272 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
275 273
276 config FAST_SYSCALL_XTENSA !! 274 config ALPHA_RUFFIAN
277 bool "Enable fast atomic syscalls" !! 275 bool "Ruffian"
278 default n <<
279 help 276 help
280 fast_syscall_xtensa is a syscall tha !! 277 Samsung APC164UX. There is a page on known problems and workarounds
281 on UP kernel when processor has no s !! 278 at <http://www.alphalinux.org/faq/FAQ-11.html>.
282 279
283 This syscall is deprecated. It may h !! 280 config ALPHA_RX164
284 invalid arguments. It is provided on !! 281 bool "RX164"
285 Only enable it if your userspace sof <<
286 282
287 If unsure, say N. !! 283 config ALPHA_SX164
>> 284 bool "SX164"
288 285
289 config FAST_SYSCALL_SPILL_REGISTERS !! 286 config ALPHA_SABLE
290 bool "Enable spill registers syscall" !! 287 bool "Sable"
291 default n <<
292 help 288 help
293 fast_syscall_spill_registers is a sy !! 289 Digital AlphaServer 2000 and 2100-based systems.
294 register windows of a calling usersp <<
295 290
296 This syscall is deprecated. It may h !! 291 config ALPHA_SHARK
297 invalid arguments. It is provided on !! 292 bool "Shark"
298 Only enable it if your userspace sof <<
299 293
300 If unsure, say N. !! 294 config ALPHA_TAKARA
>> 295 bool "Takara"
>> 296 help
>> 297 Alpha 11164-based OEM single-board computer.
301 298
302 choice !! 299 config ALPHA_TITAN
303 prompt "Kernel ABI" !! 300 bool "Titan"
304 default KERNEL_ABI_DEFAULT !! 301 help
>> 302 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
>> 303
>> 304 config ALPHA_WILDFIRE
>> 305 bool "Wildfire"
305 help 306 help
306 Select ABI for the kernel code. This !! 307 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
307 supported userspace ABI and any comb <<
308 kernel/userspace ABI is possible and <<
309 <<
310 In case both kernel and userspace su <<
311 all register windows support code wi <<
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. <<
331 308
332 endchoice 309 endchoice
333 310
334 config USER_ABI_CALL0 !! 311 # clear all implied options (don't want default values for those):
>> 312 # Most of these machines have ISA slots; not exactly sure which don't,
>> 313 # and this doesn't activate hordes of code, so do it always.
>> 314 config ISA
335 bool 315 bool
336 !! 316 default y
337 choice <<
338 prompt "Userspace ABI" <<
339 default USER_ABI_DEFAULT <<
340 help 317 help
341 Select supported userspace ABI. !! 318 Find out whether you have ISA slots on your motherboard. ISA is the
>> 319 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 320 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 321 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 322 newer boards don't support it. If you have ISA, say Y, otherwise N.
342 323
343 If unsure, choose the default ABI. !! 324 config ISA_DMA_API
>> 325 bool
>> 326 default y
344 327
345 config USER_ABI_DEFAULT !! 328 config PCI
346 bool "Default ABI only" !! 329 bool
>> 330 depends on !ALPHA_JENSEN
>> 331 select GENERIC_PCI_IOMAP
>> 332 default y
347 help 333 help
348 Assume default userspace ABI. For XE !! 334 Find out whether you have a PCI motherboard. PCI is the name of a
349 call0 ABI binaries may be run on suc !! 335 bus system, i.e. the way the CPU talks to the other stuff inside
350 will not work correctly for them. !! 336 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
>> 337 VESA. If you have PCI, say Y, otherwise N.
351 338
352 config USER_ABI_CALL0_ONLY !! 339 config PCI_DOMAINS
353 bool "Call0 ABI only" !! 340 bool
354 select USER_ABI_CALL0 !! 341 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 <<
359 342
360 Choose this option if you're plannin !! 343 config PCI_SYSCALL
361 built with call0 ABI. !! 344 def_bool PCI
362 345
363 config USER_ABI_CALL0_PROBE !! 346 config IOMMU_HELPER
364 bool "Support both windowed and call0 !! 347 def_bool PCI
365 select USER_ABI_CALL0 <<
366 help <<
367 Select this option to support both w <<
368 ABIs. When enabled all processes are <<
369 and a fast user exception handler fo <<
370 used to turn on PS.WOE bit on the fi <<
371 the userspace. <<
372 348
373 This option should be enabled for th !! 349 config ALPHA_NONAME
374 both call0 and windowed ABIs in user !! 350 bool
>> 351 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
>> 352 default y
>> 353 help
>> 354 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
>> 355 UDB). This design was produced by Digital's Technical OEM (TOEM)
>> 356 group. It uses the 21066 processor running at 166MHz or 233MHz. It
>> 357 is a baby-AT size, and runs from a standard PC power supply. It has
>> 358 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
>> 359 2 versions, with either PS/2 or large DIN connectors for the
>> 360 keyboard.
375 361
376 Note that Xtensa ISA does not guaran !! 362 config ALPHA_EV4
377 raise an illegal instruction excepti !! 363 bool
378 PS.WOE is disabled, check whether th !! 364 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
>> 365 default y if !ALPHA_LYNX
379 366
380 endchoice !! 367 config ALPHA_LCA
>> 368 bool
>> 369 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
>> 370 default y
381 371
382 endmenu !! 372 config ALPHA_APECS
>> 373 bool
>> 374 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 375 default y
383 376
384 config XTENSA_CALIBRATE_CCOUNT !! 377 config ALPHA_EB64P
385 def_bool n !! 378 bool
>> 379 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 380 default y
386 help 381 help
387 On some platforms (XT2000, for examp !! 382 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
388 vary. The frequency can be determin !! 383 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
389 against a well known, fixed frequenc !! 384 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 385 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 386 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 387 Runs from standard PC power supply.
>> 388
>> 389 config ALPHA_EV5
>> 390 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 391 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
390 392
391 config SERIAL_CONSOLE !! 393 config ALPHA_EV4
392 def_bool n !! 394 bool
>> 395 default y if ALPHA_LYNX && !ALPHA_EV5
>> 396
>> 397 config ALPHA_CIA
>> 398 bool
>> 399 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
>> 400 default y
393 401
394 config PLATFORM_HAVE_XIP !! 402 config ALPHA_EV56
395 def_bool n !! 403 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 404 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
396 405
397 menu "Platform options" !! 406 config ALPHA_EV56
>> 407 prompt "EV56 CPU (speed >= 333MHz)?"
>> 408 depends on ALPHA_NORITAKE || ALPHA_PRIMO
398 409
399 choice !! 410 config ALPHA_EV56
400 prompt "Xtensa System Type" !! 411 prompt "EV56 CPU (speed >= 400MHz)?"
401 default XTENSA_PLATFORM_ISS !! 412 depends on ALPHA_RAWHIDE
402 413
403 config XTENSA_PLATFORM_ISS !! 414 config ALPHA_PRIMO
404 bool "ISS" !! 415 bool "EV5 CPU daughtercard (model 5/xxx)?"
405 select XTENSA_CALIBRATE_CCOUNT !! 416 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 417 help
424 XTFPGA is the name of Tensilica boar !! 418 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
425 This hardware is capable of running <<
426 419
427 endchoice !! 420 config ALPHA_GAMMA
>> 421 bool "EV5 CPU(s) (model 5/xxx)?"
>> 422 depends on ALPHA_SABLE
>> 423 help
>> 424 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
428 425
429 config PLATFORM_NR_IRQS !! 426 config ALPHA_GAMMA
430 int !! 427 bool
431 default 3 if XTENSA_PLATFORM_XT2000 !! 428 depends on ALPHA_LYNX
432 default 0 !! 429 default y
433 430
434 config XTENSA_CPU_CLOCK !! 431 config ALPHA_T2
435 int "CPU clock rate [MHz]" !! 432 bool
436 depends on !XTENSA_CALIBRATE_CCOUNT !! 433 depends on ALPHA_SABLE || ALPHA_LYNX
437 default 16 !! 434 default y
438 435
439 config GENERIC_CALIBRATE_DELAY !! 436 config ALPHA_PYXIS
440 bool "Auto calibration of the BogoMIPS !! 437 bool
441 help !! 438 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
442 The BogoMIPS value can easily be der !! 439 default y
>> 440
>> 441 config ALPHA_EV6
>> 442 bool
>> 443 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 444 default y
443 445
444 config CMDLINE_BOOL !! 446 config ALPHA_TSUNAMI
445 bool "Default bootloader kernel argume !! 447 bool
>> 448 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 449 default y
446 450
447 config CMDLINE !! 451 config ALPHA_EV67
448 string "Initial kernel command string" !! 452 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
449 depends on CMDLINE_BOOL !! 453 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
450 default "console=ttyS0,38400 root=/dev <<
451 help 454 help
452 On some architectures (EBSA110 and C !! 455 Is this a machine based on the EV67 core? If in doubt, select N here
453 for the boot loader to pass argument !! 456 and the machine will be treated as an EV6.
454 architectures, you should supply som <<
455 time by entering them here. As a min <<
456 memory size and the root device (e.g <<
457 457
458 config USE_OF !! 458 config ALPHA_MCPCIA
459 bool "Flattened Device Tree support" !! 459 bool
460 select OF !! 460 depends on ALPHA_RAWHIDE
461 select OF_EARLY_FLATTREE !! 461 default y
462 help <<
463 Include support for flattened device <<
464 462
465 config BUILTIN_DTB_SOURCE !! 463 config ALPHA_POLARIS
466 string "DTB to build into the kernel i !! 464 bool
467 depends on OF !! 465 depends on ALPHA_RX164
>> 466 default y
468 467
469 config PARSE_BOOTPARAM !! 468 config ALPHA_IRONGATE
470 bool "Parse bootparam block" !! 469 bool
>> 470 depends on ALPHA_NAUTILUS
471 default y 471 default y
472 help <<
473 Parse parameters passed to the kerne <<
474 be disabled if the kernel is known t <<
475 472
476 If unsure, say Y. !! 473 config GENERIC_HWEIGHT
>> 474 bool
>> 475 default y if !ALPHA_EV67
477 476
478 choice !! 477 config ALPHA_AVANTI
479 prompt "Semihosting interface" !! 478 bool
480 default XTENSA_SIMCALL_ISS !! 479 depends on ALPHA_XL || ALPHA_AVANTI_CH
481 depends on XTENSA_PLATFORM_ISS !! 480 default y
482 help 481 help
483 Choose semihosting interface that wi !! 482 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
484 block device and networking. !! 483 Alphas. Info at
>> 484 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
485 485
486 config XTENSA_SIMCALL_ISS !! 486 config ALPHA_BROKEN_IRQ_MASK
487 bool "simcall" !! 487 bool
488 help !! 488 depends on ALPHA_GENERIC || ALPHA_PC164
489 Use simcall instruction. simcall is !! 489 default y
490 it does nothing on hardware. <<
491 490
492 config XTENSA_SIMCALL_GDBIO !! 491 config VGA_HOSE
493 bool "GDBIO" !! 492 bool
>> 493 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
>> 494 default y
494 help 495 help
495 Use break instruction. It is availab !! 496 Support VGA on an arbitrary hose; needed for several platforms
496 is attached to it via JTAG. !! 497 which always have multiple hoses, and whose consoles support it.
497 498
498 endchoice <<
499 499
500 config BLK_DEV_SIMDISK !! 500 config ALPHA_QEMU
501 tristate "Host file-based simulated bl !! 501 bool "Run under QEMU emulation"
502 default n !! 502 depends on !ALPHA_GENERIC
503 depends on XTENSA_PLATFORM_ISS && BLOC !! 503 ---help---
504 help !! 504 Assume the presence of special features supported by QEMU PALcode
505 Create block devices that map to fil !! 505 that reduce the overhead of system emulation.
506 Device binding to host file may be c !! 506
507 interface provided the device is not !! 507 Generic kernels will auto-detect QEMU. But when building a
508 !! 508 system-specific kernel, the assumption is that we want to
509 config BLK_DEV_SIMDISK_COUNT !! 509 elimiate 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. <<
544 510
545 If unsure, say N. 511 If unsure, say N.
546 512
547 config XTFPGA_LCD_BASE_ADDR !! 513
548 hex "XTFPGA LCD base address" !! 514 config ALPHA_SRM
549 depends on XTFPGA_LCD !! 515 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" !! 516 depends on TTY
551 help !! 517 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 !! 518 ---help---
553 Different boards from XTFPGA family !! 519 There are two different types of booting firmware on Alphas: SRM,
554 addresses. Please consult prototypin !! 520 which is command line driven, and ARC, which uses menus and arrow
555 the correct address. Wrong address h !! 521 keys. Details about the Linux/Alpha booting process are contained in
556 !! 522 the Linux/Alpha FAQ, accessible on the WWW from
557 config XTFPGA_LCD_8BIT_ACCESS !! 523 <http://www.alphalinux.org/>.
558 bool "Use 8-bit access to XTFPGA LCD" !! 524
559 depends on XTFPGA_LCD !! 525 The usual way to load Linux on an Alpha machine is to use MILO
560 default n !! 526 (a bootloader that lets you pass command line parameters to the
561 help !! 527 kernel just like lilo does for the x86 architecture) which can be
562 LCD may be connected with 4- or 8-bi !! 528 loaded either from ARC or can be installed directly as a permanent
563 only be used with 8-bit interface. P !! 529 firmware replacement from floppy (which requires changing a certain
564 guide for your board for the correct !! 530 jumper on the motherboard). If you want to do either of these, say N
565 !! 531 here. If MILO doesn't work on your system (true for Jensen
566 comment "Kernel memory layout" !! 532 motherboards), you can bypass it altogether and boot Linux directly
567 !! 533 from an SRM console; say Y here in order to do that. Note that you
568 config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX !! 534 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/ <<
616 535
617 If unsure, say N. 536 If unsure, say N.
618 537
619 config MEMMAP_CACHEATTR !! 538 config EISA
620 hex "Cache attributes for the memory a !! 539 bool
621 depends on !MMU !! 540 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
622 default 0x22222222 !! 541 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. <<
682 542
683 If unsure, leave the default value h !! 543 config ARCH_MAY_HAVE_PC_FDC
>> 544 def_bool y
684 545
685 choice !! 546 config SMP
686 prompt "Relocatable vectors location" !! 547 bool "Symmetric multi-processing support"
687 default XTENSA_VECTORS_IN_TEXT !! 548 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
688 help !! 549 ---help---
689 Choose whether relocatable vectors a !! 550 This enables support for systems with more than one CPU. If you have
690 or placed separately at runtime. Thi !! 551 a system with only one CPU, say N. If you have a system with more
691 configurations without VECBASE regis !! 552 than one CPU, say Y.
692 placed at their hardware-defined loc !! 553
693 !! 554 If you say N here, the kernel will run on uni- and multiprocessor
694 config XTENSA_VECTORS_IN_TEXT !! 555 machines, but will use only one CPU of a multiprocessor machine. If
695 bool "Merge relocatable vectors into k !! 556 you say Y here, the kernel will run on many, but not all,
696 depends on !MTD_XIP !! 557 uniprocessor machines. On a uniprocessor machine, the kernel
697 help !! 558 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. <<
710 559
711 endchoice !! 560 See also the SMP-HOWTO available at
>> 561 <http://www.tldp.org/docs.html#howto>.
>> 562
>> 563 If you don't know what to do here, say N.
>> 564
>> 565 config HAVE_DEC_LOCK
>> 566 bool
>> 567 depends on SMP
>> 568 default y
712 569
713 config VECTORS_ADDR !! 570 config NR_CPUS
714 hex "Kernel vectors virtual address" !! 571 int "Maximum number of CPUs (2-32)"
715 default 0x00000000 !! 572 range 2 32
716 depends on XTENSA_VECTORS_SEPARATE !! 573 depends on SMP
717 help !! 574 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
718 This is the virtual address of the ( !! 575 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
719 It must be within KSEG if MMU is use <<
720 <<
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 576 help
738 This is the base address used for bo !! 577 MARVEL support can handle a maximum of 32 CPUs, all the others
739 in noMMU configurations. !! 578 with working support have a maximum of 4 CPUs.
740 579
741 If unsure, leave the default value h !! 580 config ARCH_DISCONTIGMEM_ENABLE
>> 581 bool "Discontiguous Memory Support"
>> 582 help
>> 583 Say Y to support efficient handling of discontiguous physical memory,
>> 584 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 585 or have huge holes in the physical address space for other reasons.
>> 586 See <file:Documentation/vm/numa> for more.
>> 587
>> 588 source "mm/Kconfig"
>> 589
>> 590 config NUMA
>> 591 bool "NUMA Support (EXPERIMENTAL)"
>> 592 depends on DISCONTIGMEM && BROKEN
>> 593 help
>> 594 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 595 Access). This option is for configuring high-end multiprocessor
>> 596 server machines. If in doubt, say N.
>> 597
>> 598 config ALPHA_WTINT
>> 599 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 600 default y if ALPHA_QEMU
>> 601 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 602 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 603 default y if SMP
>> 604 ---help---
>> 605 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 606 to sleep until the next interrupt. This may reduce the power
>> 607 consumed, and the heat produced by the computer. However, it has
>> 608 the side effect of making the cycle counter unreliable as a timing
>> 609 device across the sleep.
742 610
743 choice !! 611 For emulation under QEMU, definitely say Y here, as we have other
744 prompt "KSEG layout" !! 612 mechanisms for measuring time than the cycle counter.
745 depends on MMU !! 613
746 default XTENSA_KSEG_MMU_V2 !! 614 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
747 !! 615 MILO, sleep mode is not supported so you might as well say N here.
748 config XTENSA_KSEG_MMU_V2 !! 616
749 bool "MMUv2: 128MB cached + 128MB unca !! 617 For SMP systems we cannot use the cycle counter for timing anyway,
750 help !! 618 so you might as well say Y here.
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. <<
771 619
>> 620 If unsure, say N.
>> 621
>> 622 config NODES_SHIFT
>> 623 int
>> 624 default "7"
>> 625 depends on NEED_MULTIPLE_NODES
>> 626
>> 627 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 628 config ALPHA_LARGE_VMALLOC
>> 629 bool
>> 630 ---help---
>> 631 Process creation and other aspects of virtual memory management can
>> 632 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 633 allocations. This equates to about 8GB.
>> 634
>> 635 Under normal circumstances, this is so far and above what is needed
>> 636 as to be laughable. However, there are certain applications (such
>> 637 as benchmark-grade in-kernel web serving) that can make use of as
>> 638 much vmalloc space as is available.
>> 639
>> 640 Say N unless you know you need gobs and gobs of vmalloc space.
>> 641
>> 642 config VERBOSE_MCHECK
>> 643 bool "Verbose Machine Checks"
>> 644
>> 645 config VERBOSE_MCHECK_ON
>> 646 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 647 depends on VERBOSE_MCHECK
>> 648 default 1
>> 649 ---help---
>> 650 This option allows the default printing mode to be set, and then
>> 651 possibly overridden by a boot command argument.
>> 652
>> 653 For example, if one wanted the option of printing verbose
>> 654 machine checks, but wanted the default to be as if verbose
>> 655 machine check printing was turned off, then one would choose
>> 656 the printing mode to be 0. Then, upon reboot, one could add
>> 657 the boot command line "verbose_mcheck=1" to get the normal
>> 658 verbose machine check printing, or "verbose_mcheck=2" to get
>> 659 the maximum information available.
>> 660
>> 661 Take the default (1) unless you want more control or more info.
>> 662
>> 663 choice
>> 664 prompt "Timer interrupt frequency (HZ)?"
>> 665 default HZ_128 if ALPHA_QEMU
>> 666 default HZ_1200 if ALPHA_RAWHIDE
>> 667 default HZ_1024
>> 668 ---help---
>> 669 The frequency at which timer interrupts occur. A high frequency
>> 670 minimizes latency, whereas a low frequency minimizes overhead of
>> 671 process accounting. The later effect is especially significant
>> 672 when being run under QEMU.
>> 673
>> 674 Note that some Alpha hardware cannot change the interrupt frequency
>> 675 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 676
>> 677 config HZ_32
>> 678 bool "32 Hz"
>> 679 config HZ_64
>> 680 bool "64 Hz"
>> 681 config HZ_128
>> 682 bool "128 Hz"
>> 683 config HZ_256
>> 684 bool "256 Hz"
>> 685 config HZ_1024
>> 686 bool "1024 Hz"
>> 687 config HZ_1200
>> 688 bool "1200 Hz"
772 endchoice 689 endchoice
773 690
774 config HIGHMEM !! 691 config HZ
775 bool "High Memory Support" !! 692 int
776 depends on MMU !! 693 default 32 if HZ_32
777 select KMAP_LOCAL !! 694 default 64 if HZ_64
778 help !! 695 default 128 if HZ_128
779 Linux can use the full amount of RAM !! 696 default 256 if HZ_256
780 default. However, the default MMUv2 !! 697 default 1200 if HZ_1200
781 lowermost 128 MB of memory linearly !! 698 default 1024
782 at 0xd0000000 (cached) and 0xd800000 !! 699
783 When there are more than 128 MB memo !! 700 source "drivers/pci/Kconfig"
784 all of it can be "permanently mapped !! 701 source "drivers/eisa/Kconfig"
785 The physical memory that's not perma !! 702
786 "high memory". !! 703 source "drivers/pcmcia/Kconfig"
787 !! 704
788 If you are compiling a kernel which !! 705 config SRM_ENV
789 machine with more than 128 MB total !! 706 tristate "SRM environment through procfs"
790 N here. !! 707 depends on PROC_FS
791 !! 708 ---help---
792 If unsure, say Y. !! 709 If you enable this option, a subdirectory inside /proc called
793 !! 710 /proc/srm_environment will give you access to the all important
794 config ARCH_FORCE_MAX_ORDER !! 711 SRM environment variables (those which have a name) and also
795 int "Order of maximal physically conti !! 712 to all others (by their internal number).
796 default "10" !! 713
797 help !! 714 SRM is something like a BIOS for Alpha machines. There are some
798 The kernel page allocator limits the !! 715 other such BIOSes, like AlphaBIOS, which this driver cannot
799 contiguous allocations. The limit is !! 716 support (hey, that's not SRM!).
800 defines the maximal power of two of !! 717
801 allocated as a single contiguous blo !! 718 Despite the fact that this driver doesn't work on all Alphas (but
802 overriding the default setting when !! 719 only on those which have SRM as their firmware), it's save to
803 large blocks of physically contiguou !! 720 build it even if your particular machine doesn't know about SRM
>> 721 (or if you intend to compile a generic kernel). It will simply
>> 722 not create those subdirectory in /proc (and give you some warning,
>> 723 of course).
>> 724
>> 725 This driver is also available as a module and will be called
>> 726 srm_env then.
804 727
805 Don't change if unsure. !! 728 source "fs/Kconfig.binfmt"
806 729
807 endmenu 730 endmenu
808 731
809 menu "Power management options" !! 732 source "net/Kconfig"
810 733
811 config ARCH_HIBERNATION_POSSIBLE !! 734 source "drivers/Kconfig"
812 def_bool y <<
813 735
814 source "kernel/power/Kconfig" !! 736 source "fs/Kconfig"
>> 737
>> 738 source "arch/alpha/Kconfig.debug"
>> 739
>> 740 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 741 # but we also need it if VGA_HOSE is set
>> 742 config DUMMY_CONSOLE
>> 743 bool
>> 744 depends on VGA_HOSE
>> 745 default y
>> 746
>> 747 source "security/Kconfig"
>> 748
>> 749 source "crypto/Kconfig"
>> 750
>> 751 source "lib/Kconfig"
815 752
816 endmenu <<
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