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