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