1 # SPDX-License-Identifier: GPL-2.0-only !! 1 config MIPS
2 config CSKY !! 2 bool
3 def_bool y !! 3 default y
4 select ARCH_32BIT_OFF_T <<
5 select ARCH_HAS_CPU_CACHE_ALIASING <<
6 select ARCH_HAS_DMA_PREP_COHERENT <<
7 select ARCH_HAS_GCOV_PROFILE_ALL <<
8 select ARCH_HAS_SYNC_DMA_FOR_CPU <<
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE <<
10 select ARCH_USE_BUILTIN_BSWAP <<
11 select ARCH_USE_QUEUED_RWLOCKS <<
12 select ARCH_USE_QUEUED_SPINLOCKS <<
13 select ARCH_HAS_CURRENT_STACK_POINTER <<
14 select ARCH_INLINE_READ_LOCK if !PREEM <<
15 select ARCH_INLINE_READ_LOCK_BH if !PR <<
16 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
17 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
18 select ARCH_INLINE_READ_UNLOCK if !PRE <<
19 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
20 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
21 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
22 select ARCH_INLINE_WRITE_LOCK if !PREE <<
23 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
24 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
25 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
26 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
27 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
28 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
29 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
30 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
31 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
32 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
33 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
34 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
35 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
36 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
37 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
38 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
39 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
40 select ARCH_NEED_CMPXCHG_1_EMU <<
41 select ARCH_WANT_FRAME_POINTERS if !CP <<
42 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
43 select COMMON_CLK <<
44 select CLKSRC_MMIO <<
45 select CSKY_MPINTC if CPU_CK860 <<
46 select CSKY_MP_TIMER if CPU_CK860 <<
47 select CSKY_APB_INTC <<
48 select DMA_DIRECT_REMAP <<
49 select IRQ_DOMAIN <<
50 select DW_APB_TIMER_OF <<
51 select GENERIC_IOREMAP <<
52 select GENERIC_LIB_ASHLDI3 <<
53 select GENERIC_LIB_ASHRDI3 <<
54 select GENERIC_LIB_LSHRDI3 <<
55 select GENERIC_LIB_MULDI3 <<
56 select GENERIC_LIB_CMPDI2 <<
57 select GENERIC_LIB_UCMPDI2 <<
58 select GENERIC_ALLOCATOR <<
59 select GENERIC_ATOMIC64 <<
60 select GENERIC_CPU_DEVICES <<
61 select GENERIC_IRQ_CHIP <<
62 select GENERIC_IRQ_PROBE <<
63 select GENERIC_IRQ_SHOW <<
64 select GENERIC_IRQ_MULTI_HANDLER <<
65 select GENERIC_SCHED_CLOCK <<
66 select GENERIC_SMP_IDLE_THREAD <<
67 select GENERIC_TIME_VSYSCALL <<
68 select GENERIC_VDSO_32 <<
69 select GENERIC_GETTIMEOFDAY <<
70 select GX6605S_TIMER if CPU_CK610 <<
71 select HAVE_ARCH_TRACEHOOK <<
72 select HAVE_ARCH_AUDITSYSCALL <<
73 select HAVE_ARCH_JUMP_LABEL if !CPU_CK <<
74 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
75 select HAVE_ARCH_MMAP_RND_BITS <<
76 select HAVE_ARCH_SECCOMP_FILTER <<
77 select HAVE_CONTEXT_TRACKING_USER <<
78 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
79 select HAVE_DEBUG_BUGVERBOSE <<
80 select HAVE_DEBUG_KMEMLEAK <<
81 select HAVE_DYNAMIC_FTRACE <<
82 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
83 select HAVE_GENERIC_VDSO <<
84 select HAVE_FUNCTION_TRACER <<
85 select HAVE_FUNCTION_GRAPH_TRACER <<
86 select HAVE_FUNCTION_ERROR_INJECTION <<
87 select HAVE_FTRACE_MCOUNT_RECORD <<
88 select HAVE_KERNEL_GZIP <<
89 select HAVE_KERNEL_LZO <<
90 select HAVE_KERNEL_LZMA <<
91 select HAVE_KPROBES if !CPU_CK610 <<
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ <<
93 select HAVE_KRETPROBES if !CPU_CK610 <<
94 select HAVE_PAGE_SIZE_4KB <<
95 select HAVE_PERF_EVENTS <<
96 select HAVE_PERF_REGS <<
97 select HAVE_PERF_USER_STACK_DUMP <<
98 select HAVE_DMA_CONTIGUOUS <<
99 select HAVE_REGS_AND_STACK_ACCESS_API <<
100 select HAVE_STACKPROTECTOR <<
101 select HAVE_SYSCALL_TRACEPOINTS <<
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL <<
103 select LOCK_MM_AND_FIND_VMA <<
104 select MAY_HAVE_SPARSE_IRQ <<
105 select MODULES_USE_ELF_RELA if MODULES <<
106 select OF <<
107 select OF_EARLY_FLATTREE <<
108 select PERF_USE_VMALLOC if CPU_CK610 <<
109 select RTC_LIB <<
110 select TIMER_OF <<
111 select GENERIC_PCI_IOMAP <<
112 select HAVE_PCI <<
113 select PCI_DOMAINS_GENERIC if PCI <<
114 select PCI_SYSCALL if PCI <<
115 select PCI_MSI if PCI <<
116 select TRACE_IRQFLAGS_SUPPORT <<
117 <<
118 config LOCKDEP_SUPPORT <<
119 def_bool y <<
120 <<
121 config ARCH_SUPPORTS_UPROBES <<
122 def_bool y if !CPU_CK610 <<
123 <<
124 config CPU_HAS_CACHEV2 <<
125 bool <<
126 <<
127 config CPU_HAS_FPUV2 <<
128 bool <<
129 <<
130 config CPU_HAS_HILO <<
131 bool <<
132 <<
133 config CPU_HAS_TLBI <<
134 bool <<
135 <<
136 config CPU_HAS_LDSTEX <<
137 bool <<
138 help <<
139 For SMP, CPU needs "ldex&stex" instr <<
140 <<
141 config CPU_NEED_TLBSYNC <<
142 bool <<
143 <<
144 config CPU_NEED_SOFTALIGN <<
145 bool <<
146 <<
147 config CPU_NO_USER_BKPT <<
148 bool <<
149 help <<
150 For abiv2 we couldn't use "trap 1" a <<
151 abiv2 is 16/32bit instruction set an <<
152 So we need a 16bit instruction as us <<
153 instruction exception. <<
154 In kernel we parse the *regs->pc to <<
155 4
156 config GENERIC_CALIBRATE_DELAY !! 5 config MIPS64
157 def_bool y !! 6 bool "64-bit kernel"
>> 7 help
>> 8 Select this option if you want to build a 64-bit kernel. You should
>> 9 only select this option if you have hardware that actually has a
>> 10 32-bit processor and if your application will actually benefit from
>> 11 64-bit processing, otherwise say N. You must say Y for kernels for
>> 12 SGI IP27 (Origin 200 and 2000). If in doubt say N.
158 13
159 config GENERIC_CSUM !! 14 config 64BIT
160 def_bool y !! 15 def_bool MIPS64
161 16
162 config GENERIC_HWEIGHT !! 17 config MIPS32
163 def_bool y !! 18 bool
>> 19 depends on MIPS64 = 'n'
>> 20 default y
164 21
165 config MMU !! 22 mainmenu "Linux/MIPS Kernel Configuration"
166 def_bool y <<
167 23
168 config STACKTRACE_SUPPORT !! 24 source "init/Kconfig"
169 def_bool y <<
170 25
171 config TIME_LOW_RES !! 26 menu "Machine selection"
172 def_bool y <<
173 27
174 config CPU_ASID_BITS !! 28 config ACER_PICA_61
175 int !! 29 bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
176 default "8" if (CPU_CK610 || CPU_C !! 30 depends on EXPERIMENTAL
177 default "12" if (CPU_CK860) !! 31 help
>> 32 This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
>> 33 kernel that runs on these, say Y here. For details about Linux on
>> 34 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
>> 35 <http://oss.sgi.com/mips/>.
>> 36
>> 37 config BAGET_MIPS
>> 38 bool "Support for BAGET MIPS series (EXPERIMENTAL)"
>> 39 depends on MIPS32 && EXPERIMENTAL
>> 40 help
>> 41 This enables support for the Baget, a Russian embedded system. For
>> 42 more details about the Baget see the Linux/MIPS FAQ on
>> 43 <http://oss.sgi.com/mips/>.
>> 44
>> 45 config CASIO_E55
>> 46 bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
>> 47
>> 48 config MIPS_COBALT
>> 49 bool "Support for Cobalt Server (EXPERIMENTAL)"
>> 50 depends on EXPERIMENTAL
>> 51
>> 52 config DECSTATION
>> 53 bool "Support for DECstations"
>> 54 depends on MIPS32 || EXPERIMENTAL
>> 55 ---help---
>> 56 This enables support for DEC's MIPS based workstations. For details
>> 57 see the Linux/MIPS FAQ on <http://oss.sgi.com/mips/> and the
>> 58 DECstation porting pages on <http://decstation.unix-ag.org/>.
>> 59
>> 60 If you have one of the following DECstation Models you definitely
>> 61 want to choose R4xx0 for the CPU Type:
>> 62
>> 63 DECstation 5000/50
>> 64 DECstation 5000/150
>> 65 DECstation 5000/260
>> 66 DECsystem 5900/260
>> 67
>> 68 otherwise choose R3000.
>> 69
>> 70 config MIPS_EV64120
>> 71 bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
>> 72 depends on EXPERIMENTAL
>> 73 help
>> 74 This is an evaluation board based on the Galileo GT-64120
>> 75 single-chip system controller that contains a MIPS R5000 compatible
>> 76 core running at 75/100MHz. Their website is located at
>> 77 <http://www.galileot.com/>. Say Y here if you wish to build a
>> 78 kernel for this platform.
>> 79
>> 80 config EVB_PCI1
>> 81 bool "Enable Second PCI (PCI1)"
>> 82 depends on MIPS_EV64120
178 83
179 config L1_CACHE_SHIFT !! 84 if MOMENCO_OCELOT_G || MOMENCO_OCELOT
180 int <<
181 default "4" if (CPU_CK610) <<
182 default "5" if (CPU_CK807 || CPU_C <<
183 default "6" if (CPU_CK860) <<
184 <<
185 config ARCH_MMAP_RND_BITS_MIN <<
186 default 8 <<
187 <<
188 # max bits determined by the following formula <<
189 # VA_BITS - PAGE_SHIFT - 3 <<
190 config ARCH_MMAP_RND_BITS_MAX <<
191 default 17 <<
192 85
193 menu "Processor type and features" !! 86 config SYSCLK_100
>> 87 bool
>> 88 default y
>> 89
>> 90 endif
>> 91 if MIPS_EV64120
194 92
195 choice 93 choice
196 prompt "CPU MODEL" !! 94 prompt "Galileo Chip Clock"
197 default CPU_CK807 !! 95 default SYSCLK_83
>> 96
>> 97 config SYSCLK_75
>> 98 bool "75"
>> 99
>> 100 config SYSCLK_83
>> 101 bool "83.3"
>> 102
>> 103 config SYSCLK_100
>> 104 bool "100" if MIPS_EV64120
198 105
199 config CPU_CK610 <<
200 bool "CSKY CPU ck610" <<
201 select CPU_NEED_TLBSYNC <<
202 select CPU_NEED_SOFTALIGN <<
203 select CPU_NO_USER_BKPT <<
204 <<
205 config CPU_CK810 <<
206 bool "CSKY CPU ck810" <<
207 select CPU_HAS_HILO <<
208 select CPU_NEED_TLBSYNC <<
209 <<
210 config CPU_CK807 <<
211 bool "CSKY CPU ck807" <<
212 select CPU_HAS_HILO <<
213 <<
214 config CPU_CK860 <<
215 bool "CSKY CPU ck860" <<
216 select CPU_HAS_TLBI <<
217 select CPU_HAS_CACHEV2 <<
218 select CPU_HAS_LDSTEX <<
219 select CPU_HAS_FPUV2 <<
220 endchoice 106 endchoice
221 107
>> 108 endif
>> 109
>> 110 config MIPS_EV96100
>> 111 bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
>> 112 depends on EXPERIMENTAL
>> 113 help
>> 114 This is an evaluation board based on the Galielo GT-96100 LAN/WAN
>> 115 communications controllers containing a MIPS R5000 compatible core
>> 116 running at 83MHz. Their website is <http://www.galileot.com/>. Say Y
>> 117 here if you wish to build a kernel for this platform.
>> 118
>> 119 config MIPS_IVR
>> 120 bool "Support for Globespan IVR board"
>> 121 help
>> 122 This is an evaluation board built by Globespan to showcase thir
>> 123 iVR (Internet Video Recorder) design. It utilizes a QED RM5231
>> 124 R5000 MIPS core. More information can be found out their website
>> 125 located at <http://www.globespan.net/products/product4.html>P. Say Y
>> 126 here if you wish to build a kernel for this platform.
>> 127
>> 128 config LASAT
>> 129 bool "Support for LASAT Networks platforms"
>> 130
>> 131 config PICVUE
>> 132 tristate "PICVUE LCD display driver"
>> 133 depends on LASAT
>> 134
>> 135 config PICVUE_PROC
>> 136 tristate "PICVUE LCD display driver /proc interface"
>> 137 depends on PICVUE
>> 138
>> 139 config DS1603
>> 140 bool "DS1603 RTC driver"
>> 141 depends on LASAT
>> 142
>> 143 config LASAT_SYSCTL
>> 144 bool "LASAT sysctl interface"
>> 145 depends on LASAT
>> 146
>> 147 config HP_LASERJET
>> 148 bool "Support for Hewlett Packard LaserJet board"
>> 149
>> 150 config IBM_WORKPAD
>> 151 bool "Support for IBM WorkPad z50"
>> 152
>> 153 config MIPS_ITE8172
>> 154 bool "Support for ITE 8172G board"
>> 155 help
>> 156 Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
>> 157 with ATX form factor that utilizes a MIPS R5000 to work with its
>> 158 ITE8172G companion internet appliance chip. The MIPS core can be
>> 159 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
>> 160 a kernel for this platform.
>> 161
>> 162 config IT8172_REVC
>> 163 bool "Support for older IT8172 (Rev C)"
>> 164 depends on MIPS_ITE8172
>> 165 help
>> 166 Say Y here to support the older, Revision C version of the Integrated
>> 167 Technology Express, Inc. ITE8172 SBC. Vendor page at
>> 168 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
>> 169 board at <http://www.mvista.com/allies/semiconductor/ite.html>.
>> 170
>> 171 config MIPS_ATLAS
>> 172 bool "Support for MIPS Atlas board"
>> 173 help
>> 174 This enables support for the QED R5231-based MIPS Atlas evaluation
>> 175 board.
>> 176
>> 177 config MIPS_MAGNUM_4000
>> 178 bool "Support for MIPS Magnum 4000"
>> 179 help
>> 180 This is a machine with a R4000 100 MHz CPU. To compile a Linux
>> 181 kernel that runs on these, say Y here. For details about Linux on
>> 182 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
>> 183 <http://oss.sgi.com/mips/>.
>> 184
>> 185 config MIPS_MALTA
>> 186 bool "Support for MIPS Malta board"
>> 187 help
>> 188 This enables support for the VR5000-based MIPS Malta evaluation
>> 189 board.
>> 190
>> 191 config MIPS_SEAD
>> 192 bool "Support for MIPS SEAD board (EXPERIMENTAL)"
>> 193 depends on EXPERIMENTAL
>> 194
>> 195 config MOMENCO_OCELOT
>> 196 bool "Support for Momentum Ocelot board"
>> 197 help
>> 198 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
>> 199 Momentum Computer <http://www.momenco.com/>.
>> 200
>> 201 config MOMENCO_OCELOT_G
>> 202 bool "Support for Momentum Ocelot-G board"
>> 203 help
>> 204 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
>> 205 Momentum Computer <http://www.momenco.com/>.
>> 206
>> 207 config MOMENCO_OCELOT_C
>> 208 bool "Support for Momentum Ocelot-C board"
>> 209 help
>> 210 The Ocelot is a MIPS-based Single Board Computer (SBC) made by
>> 211 Momentum Computer <http://www.momenco.com/>.
>> 212
>> 213 config DDB5074
>> 214 bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
>> 215 depends on EXPERIMENTAL
>> 216 help
>> 217 This enables support for the VR5000-based NEC DDB Vrc-5074
>> 218 evaluation board.
>> 219
>> 220 config DDB5476
>> 221 bool "Support for NEC DDB Vrc-5476"
>> 222 help
>> 223 This enables support for the R5432-based NEC DDB Vrc-5476
>> 224 evaluation board.
>> 225
>> 226 Features : kernel debugging, serial terminal, NFS root fs, on-board
>> 227 ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
>> 228 IDE controller, PS2 keyboard, PS2 mouse, etc.
>> 229
>> 230 config DDB5477
>> 231 bool "Support for NEC DDB Vrc-5477"
>> 232 help
>> 233 This enables support for the R5432-based NEC DDB Vrc-5477,
>> 234 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
>> 235
>> 236 Features : kernel debugging, serial terminal, NFS root fs, on-board
>> 237 ether port USB, AC97, PCI, etc.
>> 238
>> 239 config DDB5477_BUS_FREQUENCY
>> 240 int "bus frequency (in kHZ, 0 for auto-detect)"
>> 241 depends on DDB5477
>> 242 default 0
>> 243
>> 244 config NEC_OSPREY
>> 245 bool "Support for NEC Osprey board"
>> 246
>> 247 config NEC_EAGLE
>> 248 bool "Support for NEC Eagle/Hawk board"
>> 249
>> 250 config OLIVETTI_M700
>> 251 bool "Support for Olivetti M700-10"
>> 252 help
>> 253 This is a machine with a R4000 100 MHz CPU. To compile a Linux
>> 254 kernel that runs on these, say Y here. For details about Linux on
>> 255 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
>> 256 <http://oss.sgi.com/mips/>.
>> 257
>> 258 config SGI_IP22
>> 259 bool "Support for SGI IP22 (Indy/Indigo2)"
>> 260 help
>> 261 This are the SGI Indy, Challenge S and Indigo2, as well as certain
>> 262 OEM variants like the Tandem CMN B006S. To compile a Linux kernel
>> 263 that runs on these, say Y here.
>> 264
>> 265 config SGI_IP27
>> 266 bool "Support for SGI IP27 (Origin200/2000)"
>> 267 depends on MIPS64
>> 268 help
>> 269 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
>> 270 workstations. To compile a Linux kernel that runs on these, say Y
>> 271 here.
>> 272
>> 273 #config SGI_SN0_XXL
>> 274 # bool "IP27 XXL"
>> 275 # depends on SGI_IP27
>> 276 # This options adds support for userspace processes upto 16TB size.
>> 277 # Normally the limit is just .5TB.
>> 278
>> 279 config SGI_SN0_N_MODE
>> 280 bool "IP27 N-Mode"
>> 281 depends on SGI_IP27
>> 282 help
>> 283 The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
>> 284 configured in either N-Modes which allows for more nodes or M-Mode
>> 285 which allows for more memory. Your system is most probably
>> 286 running in M-Mode, so you should say N here.
>> 287
>> 288 config DISCONTIGMEM
>> 289 bool "Discontiguous Memory Support"
>> 290 depends on SGI_IP27
>> 291 help
>> 292 Say Y to upport efficient handling of discontiguous physical memory,
>> 293 for architectures which are either NUMA (Non-Uniform Memory Access)
>> 294 or have huge holes in the physical address space for other reasons.
>> 295 See <file:Documentation/vm/numa> for more.
>> 296
>> 297 config NUMA
>> 298 bool "NUMA Support"
>> 299 depends on SGI_IP27
>> 300 help
>> 301 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 302 Access). This option is for configuring high-end multiprocessor
>> 303 server machines. If in doubt, say N.
>> 304
>> 305 config MAPPED_KERNEL
>> 306 bool "Mapped kernel support"
>> 307 depends on SGI_IP27
>> 308 help
>> 309 Change the way a Linux kernel is loaded unto memory on a MIPS64
>> 310 machine. This is required in order to support text replication and
>> 311 NUMA. If you need to undersatand it, read the source code.
>> 312
>> 313 config REPLICATE_KTEXT
>> 314 bool "Kernel text replication support"
>> 315 depends on SGI_IP27
>> 316 help
>> 317 Say Y here to enable replicating the kernel text across multiple
>> 318 nodes in a NUMA cluster. This trades memory for speed.
>> 319
>> 320 config REPLICATE_EXHANDLERS
>> 321 bool "Exception handler replication support"
>> 322 depends on SGI_IP27
>> 323 help
>> 324 Say Y here to enable replicating the kernel exception handlers
>> 325 across multiple nodes in a NUMA cluster. This trades memory for
>> 326 speed.
>> 327
>> 328 config SGI_IP32
>> 329 bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
>> 330 depends on EXPERIMENTAL
>> 331 help
>> 332 If you want this kernel to run on SGI O2 workstation, say Y here.
>> 333
>> 334 config SOC_AU1X00
>> 335 depends on MIPS32
>> 336 bool "Support for AMD/Alchemy Au1X00 SOCs"
>> 337
222 choice 338 choice
223 prompt "PAGE OFFSET" !! 339 prompt "Au1X00 SOC Type"
224 default PAGE_OFFSET_80000000 !! 340 depends on SOC_AU1X00
>> 341 help
>> 342 Say Y here to enable support for one of three AMD/Alchemy
>> 343 SOCs. For additional documentation see www.amd.com.
>> 344
>> 345 config SOC_AU1000
>> 346 bool "SOC_AU1000"
>> 347 config SOC_AU1100
>> 348 bool "SOC_AU1100"
>> 349 config SOC_AU1500
>> 350 bool "SOC_AU1500"
>> 351
>> 352 endchoice
225 353
226 config PAGE_OFFSET_80000000 !! 354 choice
227 bool "PAGE OFFSET 2G (user:kernel = 2: !! 355 prompt "AMD/Alchemy Pb1x and Db1x board support"
>> 356 depends on SOC_AU1X00
>> 357 help
>> 358 These are evaluation boards built by AMD/Alchemy to
>> 359 showcase their Au1X00 Internet Edge Processors. The SOC design
>> 360 is based on the MIPS32 architecture running at 266/400/500MHz
>> 361 with many integrated peripherals. Further information can be
>> 362 found at their website, <http://www.amd.com/>. Say Y here if you
>> 363 wish to build a kernel for this platform.
>> 364
>> 365 config MIPS_PB1000
>> 366 bool "PB1000 board"
>> 367 depends on SOC_AU1000
>> 368
>> 369 config MIPS_PB1100
>> 370 bool "PB1100 board"
>> 371 depends on SOC_AU1100
>> 372
>> 373 config MIPS_PB1500
>> 374 bool "PB1500 board"
>> 375 depends on SOC_AU1500
>> 376
>> 377 config MIPS_DB1000
>> 378 bool "DB1000 board"
>> 379 depends on SOC_AU1000
>> 380
>> 381 config MIPS_DB1100
>> 382 bool "DB1100 board"
>> 383 depends on SOC_AU1100
>> 384
>> 385 config MIPS_DB1500
>> 386 bool "DB1500 board"
>> 387 depends on SOC_AU1500
228 388
229 config PAGE_OFFSET_A0000000 <<
230 bool "PAGE OFFSET 2.5G (user:kernel = <<
231 endchoice 389 endchoice
232 390
233 config PAGE_OFFSET !! 391 config SIBYTE_SB1xxx_SOC
234 hex !! 392 bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
235 default 0x80000000 if PAGE_OFFSET_8000 !! 393 depends on EXPERIMENTAL
236 default 0xa0000000 if PAGE_OFFSET_A000 !! 394
237 choice 395 choice
>> 396 prompt "BCM1xxx SOC Type"
>> 397 depends on SIBYTE_SB1xxx_SOC
>> 398 default SIBYTE_SB1250
>> 399
>> 400 config SIBYTE_SB1250
>> 401 bool "BCM1250"
>> 402
>> 403 endchoice
>> 404
>> 405 config SIMULATION
>> 406 bool "Running under simulation"
>> 407 depends on SIBYTE_SB1xxx_SOC
>> 408
>> 409 config SIBYTE_CFE
>> 410 bool "Booting from CFE"
>> 411 depends on SIBYTE_SB1xxx_SOC
>> 412
>> 413 config SIBYTE_CFE_CONSOLE
>> 414 bool "Use firmware console"
>> 415 depends on SIBYTE_CFE
238 416
239 prompt "C-SKY PMU type" !! 417 config SIBYTE_STANDALONE
240 depends on PERF_EVENTS !! 418 bool
241 depends on CPU_CK807 || CPU_CK810 || C !! 419 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
>> 420 default y
>> 421
>> 422 config SIBYTE_STANDALONE_RAM_SIZE
>> 423 int "Memory size (in megabytes)"
>> 424 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
>> 425 default "32"
>> 426
>> 427 config SIBYTE_BUS_WATCHER
>> 428 bool "Support for Bus Watcher statistics"
>> 429 depends on SIBYTE_SB1xxx_SOC
>> 430
>> 431 config SIBYTE_SB1250_PROF
>> 432 bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
>> 433 depends on SIBYTE_SB1xxx_SOC
>> 434
>> 435 config SIBYTE_TBPROF
>> 436 bool "Support for ZBbus profiling"
>> 437 depends on SIBYTE_SB1xxx_SOC
>> 438
>> 439 config SIBYTE_SWARM
>> 440 bool "Support for SWARM board"
>> 441 depends on SIBYTE_SB1250
242 442
243 config CPU_PMU_NONE !! 443 config SIBYTE_BOARD
244 bool "None" !! 444 bool
>> 445 depends on SIBYTE_SWARM
>> 446 default y
245 447
246 config CSKY_PMU_V1 !! 448 config SNI_RM200_PCI
247 bool "Performance Monitoring Unit Ver. !! 449 bool "Support for SNI RM200 PCI"
>> 450 help
>> 451 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
>> 452 Nixdorf Informationssysteme (SNI), parent company of Pyramid
>> 453 Technology and now in turn merged with Fujitsu. Say Y here to
>> 454 support this machine type.
>> 455
>> 456 config TANBAC_TB0226
>> 457 bool "Support for TANBAC TB0226 (Mbase)"
>> 458 help
>> 459 The TANBAC TB0226 (Mbase) is a MIPS-based platform manufactured by TANBAC.
>> 460 Please refer to <http://www.tanbac.co.jp/> about Mbase.
>> 461
>> 462 config TANBAC_TB0229
>> 463 bool "Support for TANBAC TB0229 (VR4131DIMM)"
>> 464 help
>> 465 The TANBAC TB0229 (VR4131DIMM) is a MIPS-based platform manufactured by TANBAC.
>> 466 Please refer to <http://www.tanbac.co.jp/> about VR4131DIMM.
>> 467
>> 468 config TOSHIBA_JMR3927
>> 469 bool "Support for Toshiba JMR-TX3927 board"
>> 470 depends on MIPS32
>> 471
>> 472 config TOSHIBA_RBTX4927
>> 473 bool "Support for Toshiba TBTX49[23]7 board"
>> 474 depends on MIPS32
>> 475
>> 476 config VICTOR_MPC30X
>> 477 bool "Support for Victor MP-C303/304"
>> 478
>> 479 config ZAO_CAPCELLA
>> 480 bool "Support for ZAO Networks Capcella"
>> 481
>> 482 config RWSEM_GENERIC_SPINLOCK
>> 483 bool
>> 484 default y
>> 485
>> 486 config RWSEM_XCHGADD_ALGORITHM
>> 487 bool
>> 488
>> 489 #
>> 490 # Select some configuration options automatically based on user selections.
>> 491 #
>> 492 config ARC
>> 493 bool
>> 494 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
>> 495 default y
>> 496
>> 497 config GENERIC_ISA_DMA
>> 498 bool
>> 499 depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
>> 500 default y
>> 501
>> 502 config CONFIG_GT64120
>> 503 bool
>> 504 depends on MIPS_EV64120 || MOMENCO_OCELOT
>> 505 default y
>> 506
>> 507 config I8259
>> 508 bool
>> 509 depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MIPS_MALTA || MIPS_MAGNUM_4000 || OLIVETTI_M700 || MIPS_COBALT || ACER_PICA_61
>> 510 default y
>> 511
>> 512 config MIPS_JAZZ
>> 513 bool
>> 514 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
>> 515 default y
>> 516
>> 517 config NONCOHERENT_IO
>> 518 bool
>> 519 depends on ZAO_CAPCELLA || VICTOR_MPC30X || TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || SNI_RM200_PCI || SGI_IP32 || SGI_IP22 || NEC_EAGLE || NEC_OSPREY || DDB5477 || DDB5476 || DDB5074 || MOMENCO_OCELOT || MOMENCO_OCELOT_C || MOMENCO_OCELOT_G || MIPS_SEAD || MIPS_MALTA || MIPS_MAGNUM_4000 || OLIVETTI_M700 || MIPS_ATLAS || LASAT || MIPS_ITE8172 || IBM_WORKPAD || HP_LASERJET || MIPS_IVR || MIPS_EV96100 || MIPS_EV64120 || DECSTATION || MIPS_COBALT || MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 || CASIO_E55 || ACER_PICA_61 || TANBAC_TB0226 || TANBAC_TB0229
>> 520 default y if ZAO_CAPCELLA || VICTOR_MPC30X || TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || SNI_RM200_PCI || SGI_IP32 || SGI_IP22 || NEC_EAGLE || NEC_OSPREY || DDB5477 || DDB5476 || DDB5074 || MOMENCO_OCELOT_G || MOMENCO_OCELOT || MIPS_SEAD || MIPS_MALTA || MIPS_MAGNUM_4000 || OLIVETTI_M700 || MIPS_ATLAS || LASAT || MIPS_ITE8172 || IBM_WORKPAD || HP_LASERJET || MIPS_IVR || MIPS_EV96100 || MIPS_EV64120 || DECSTATION || MIPS_COBALT || MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 || CASIO_E55 || ACER_PICA_61 || TANBAC_TB0226 || TANBAC_TB0229
>> 521 default n if (SIBYTE_SB1250 || SGI_IP27)
>> 522
>> 523 config CPU_LITTLE_ENDIAN
>> 524 bool "Generate little endian code"
>> 525 default y if ACER_PICA_61 || CASIO_E55 || DDB5074 || DDB5476 || DDB5477 || DECSTATION || HP_LASERJET || IBM_WORKPAD || LASAT || MIPS_COBALT || MIPS_ITE8172 || MIPS_IVR || MIPS_PB1000 || MIPS_PB1100 || MIPS_PB1500 || NEC_OSPREY || NEC_EAGLE || OLIVETTI_M700 || SNI_RM200_PCI || VICTOR_MPC30X || ZAO_CAPCELLA
>> 526 default n if BAGET_MIPS || MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
>> 527 help
>> 528 Some MIPS machines can be configured for either little or big endian
>> 529 byte order. These modes require different kernels. Say Y if your
>> 530 machine is little endian, N if it's a big endian machine.
>> 531
>> 532 config IRQ_CPU
>> 533 bool
>> 534 depends on ZAO_CAPCELLA || VICTOR_MPC30X || SGI_IP22 || NEC_EAGLE || NEC_OSPREY || DDB5477 || DDB5476 || DDB5074 || IBM_WORKPAD || HP_LASERJET || DECSTATION || CASIO_E55 || TANBAC_TB0226 || TANBAC_TB0229
>> 535 default y
>> 536
>> 537 config VR41XX_TIME_C
>> 538 bool
>> 539 depends on ZAO_CAPCELLA || VICTOR_MPC30X || NEC_EAGLE || IBM_WORKPAD || CASIO_E55 || TANBAC_TB0226 || TANBAC_TB0229
>> 540 default y
>> 541
>> 542 config DUMMY_KEYB
>> 543 bool
>> 544 depends on ZAO_CAPCELLA || VICTOR_MPC30X || SIBYTE_SB1250 || NEC_EAGLE || NEC_OSPREY || DDB5477 || IBM_WORKPAD || CASIO_E55 || TANBAC_TB0226 || TANBAC_TB0229
>> 545 default y
>> 546
>> 547 config VR41XX_COMMON
>> 548 bool
>> 549 depends on NEC_EAGLE || ZAO_CAPCELLA || VICTOR_MPC30X || IBM_WORKPAD || CASIO_E55 || TANBAC_TB0226 || TANBAC_TB0229
>> 550 default y
>> 551
>> 552 config VRC4173
>> 553 tristate "NEC VRC4173 Support"
>> 554 depends on NEC_EAGLE || VICTOR_MPC30X
>> 555
>> 556 config DDB5XXX_COMMON
>> 557 bool
>> 558 depends on DDB5074 || DDB5476 || DDB5477
>> 559 default y
>> 560
>> 561 config MIPS_BOARDS_GEN
>> 562 bool
>> 563 depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
>> 564 default y
>> 565
>> 566 config ITE_BOARD_GEN
>> 567 bool
>> 568 depends on MIPS_IVR || MIPS_ITE8172
>> 569 default y
>> 570
>> 571 config NEW_PCI
>> 572 bool
>> 573 depends on ZAO_CAPCELLA || VICTOR_MPC30X || TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || NEC_EAGLE || DDB5477 || DDB5476 || DDB5074 || MIPS_ITE8172 || HP_LASERJET || MIPS_IVR || MIPS_EV96100 || MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 || TANBAC_TB0226 || TANBAC_TB0229
>> 574 default y
>> 575
>> 576 config SWAP_IO_SPACE
>> 577 bool "Support for paging of anonymous memory"
>> 578 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || SIBYTE_SB1250 || SGI_IP22 || MOMENCO_OCELOT_C || MOMENCO_OCELOT_G || MOMENCO_OCELOT || MIPS_MALTA || MIPS_ATLAS || MIPS_EV96100 || MIPS_PB1100 || MIPS_PB1000
>> 579 default y
>> 580 help
>> 581 This option allows you to choose whether you want to have support
>> 582 for socalled swap devices or swap files in your kernel that are
>> 583 used to provide more virtual memory than the actual RAM present
>> 584 in your computer. If unusre say Y.
>> 585
>> 586 config SIBYTE_HAS_LDT
>> 587 bool
>> 588 depends on SIBYTE_SB1xxx_SOC && PCI
>> 589 default y
>> 590
>> 591 config AU1000_USB_DEVICE
>> 592 bool
>> 593 depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
>> 594 default n
>> 595
>> 596 config COBALT_LCD
>> 597 bool
>> 598 depends on MIPS_COBALT
>> 599 default y
>> 600
>> 601 config MIPS_GT64120
>> 602 bool
>> 603 depends on MIPS_EV64120
>> 604 default y
>> 605
>> 606 config MIPS_GT96100
>> 607 bool
>> 608 depends on MIPS_EV96100
>> 609 default y
>> 610 help
>> 611 Say Y here to support the Galileo Technology GT96100 communications
>> 612 controller card. There is a web page at <http://www.galileot.com/>.
>> 613
>> 614 config IT8172_CIR
>> 615 bool
>> 616 depends on MIPS_ITE8172 || MIPS_IVR
>> 617 default y
>> 618
>> 619 config IT8712
>> 620 bool
>> 621 depends on MIPS_ITE8172
>> 622 default y
>> 623
>> 624 config BOOT_ELF32
>> 625 bool
>> 626 depends on DECSTATION || MIPS_ATLAS || MIPS_MALTA || SIBYTE_SB1250 || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
>> 627 default y
>> 628
>> 629 config L1_CACHE_SHIFT
>> 630 int
>> 631 default "4" if DECSTATION
>> 632 default "5" if SGI_IP32 || SGI_IP22 || MIPS_SEAD || MIPS_MALTA || MIPS_ATLAS
>> 633 default "7" if SGI_IP27
>> 634
>> 635 config ARC32
>> 636 bool
>> 637 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700
>> 638 default y
>> 639
>> 640 config FB
>> 641 bool
>> 642 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
>> 643 default y
>> 644 ---help---
>> 645 The frame buffer device provides an abstraction for the graphics
>> 646 hardware. It represents the frame buffer of some video hardware and
>> 647 allows application software to access the graphics hardware through
>> 648 a well-defined interface, so the software doesn't need to know
>> 649 anything about the low-level (hardware register) stuff.
>> 650
>> 651 Frame buffer devices work identically across the different
>> 652 architectures supported by Linux and make the implementation of
>> 653 application programs easier and more portable; at this point, an X
>> 654 server exists which uses the frame buffer device exclusively.
>> 655 On several non-X86 architectures, the frame buffer device is the
>> 656 only way to use the graphics hardware.
>> 657
>> 658 The device is accessed through special device nodes, usually located
>> 659 in the /dev directory, i.e. /dev/fb*.
>> 660
>> 661 You need an utility program called fbset to make full use of frame
>> 662 buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
>> 663 and the Framebuffer-HOWTO at
>> 664 <http://www.tahallah.demon.co.uk/programming/prog.html> for more
>> 665 information.
>> 666
>> 667 Say Y here and to the driver for your graphics board below if you
>> 668 are compiling a kernel for a non-x86 architecture.
>> 669
>> 670 If you are compiling for the x86 architecture, you can say Y if you
>> 671 want to play with it, but it is not essential. Please note that
>> 672 running graphical applications that directly touch the hardware
>> 673 (e.g. an accelerated X server) and that are not frame buffer
>> 674 device-aware may cause unexpected results. If unsure, say N.
>> 675
>> 676 config FB_G364
>> 677 bool
>> 678 depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
>> 679 default y
>> 680
>> 681 config HAVE_STD_PC_SERIAL_PORT
>> 682 bool
>> 683 depends on DDB5476 || DDB5074 || MIPS_MALTA
>> 684 default y
>> 685
>> 686 config VR4181
>> 687 bool
>> 688 depends on NEC_OSPREY
>> 689 default y
>> 690
>> 691 config ARC_CONSOLE
>> 692 bool "ARC console support"
>> 693 depends on SGI_IP22 || SNI_RM200_PCI
>> 694
>> 695 config ARC_MEMORY
>> 696 bool
>> 697 depends on SNI_RM200_PCI || SGI_IP32
>> 698 default y
>> 699
>> 700 config ARC_PROMLIB
>> 701 bool
>> 702 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP22
>> 703 default y
>> 704
>> 705 config BOARD_SCACHE
>> 706 bool
>> 707 depends on MIPS_EV96100 || MOMENCO_OCELOT || SGI_IP22
>> 708 default y
>> 709
>> 710 config ARC64
>> 711 bool
>> 712 depends on SGI_IP27
>> 713 default y
>> 714
>> 715 config BOOT_ELF64
>> 716 bool
>> 717 depends on SGI_IP27
>> 718 default y
>> 719
>> 720 #config MAPPED_PCI_IO y
>> 721 # bool
>> 722 # depends on SGI_IP27
>> 723 # default y
>> 724
>> 725 config QL_ISP_A64
>> 726 bool
>> 727 depends on SGI_IP27
>> 728 default y
>> 729
>> 730 config TOSHIBA_BOARDS
>> 731 bool
>> 732 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
>> 733 default y
>> 734
>> 735 config TANBAC_TB0219
>> 736 bool "Added TANBAC TB0219 Base board support"
>> 737 depends on TANBAC_TB0229
>> 738
>> 739 endmenu
>> 740
>> 741
>> 742 menu "CPU selection"
>> 743
>> 744 choice
>> 745 prompt "CPU type"
>> 746 default CPU_R4X00
>> 747
>> 748 config CPU_MIPS32
>> 749 bool "MIPS32"
>> 750
>> 751 config CPU_MIPS64
>> 752 bool "MIPS64"
>> 753
>> 754 config CPU_R3000
>> 755 bool "R3000"
>> 756 depends on MIPS32
>> 757 help
>> 758 Please make sure to pick the right CPU type. Linux/MIPS is not
>> 759 designed to be generic, i.e. Kernels compiled for R3000 CPUs will
>> 760 *not* work on R4000 machines and vice versa. However, since most
>> 761 of the supported machines have an R4000 (or similar) CPU, R4x00
>> 762 might be a safe bet. If the resulting kernel does not work,
>> 763 try to recompile with R3000.
>> 764
>> 765 config CPU_TX39XX
>> 766 bool "R39XX"
>> 767 depends on MIPS32
>> 768
>> 769 config CPU_VR41XX
>> 770 bool "R41xx"
>> 771 help
>> 772 The options selects support for the NEC VR41xx series of processors.
>> 773 Only choose this option if you have one of these processors as a
>> 774 kernel built with this option will not run on any other type of
>> 775 processor or vice versa.
>> 776
>> 777 config CPU_R4300
>> 778 bool "R4300"
>> 779 help
>> 780 MIPS Technologies R4300-series processors.
>> 781
>> 782 config CPU_R4X00
>> 783 bool "R4x00"
>> 784 help
>> 785 MIPS Technologies R4000-series processors other than 4300, including
>> 786 the R4000, R4400, R4600, and 4700.
>> 787
>> 788 config CPU_TX49XX
>> 789 bool "R49XX"
>> 790
>> 791 config CPU_R5000
>> 792 bool "R5000"
>> 793 help
>> 794 MIPS Technologies R5000-series processors other than the Nevada.
>> 795
>> 796 config CPU_R5432
>> 797 bool "R5432"
>> 798
>> 799 config CPU_R6000
>> 800 bool "R6000"
>> 801 depends on MIPS32 && EXPERIMENTAL
>> 802 help
>> 803 MIPS Technologies R6000 and R6000A series processors. Note these
>> 804 processors are extremly rare and the support for them is incomplete.
>> 805
>> 806 config CPU_NEVADA
>> 807 bool "R52xx"
>> 808 help
>> 809 MIPS Technologies R52x0-series ("Nevada") processors.
>> 810
>> 811 config CPU_R8000
>> 812 bool "R8000"
>> 813 depends on MIPS64 && EXPERIMENTAL
>> 814 help
>> 815 MIPS Technologies R8000 processors. Note these processors are
>> 816 uncommon and the support for them is incomplete.
>> 817
>> 818 config CPU_R10000
>> 819 bool "R10000"
>> 820 help
>> 821 MIPS Technologies R10000-series processors.
>> 822
>> 823 config CPU_RM7000
>> 824 bool "RM7000"
>> 825
>> 826 config CPU_SB1
>> 827 bool "SB1"
248 828
249 endchoice 829 endchoice
250 830
>> 831 config R5000_CPU_SCACHE
>> 832 bool
>> 833 depends on CPU_NEVADA || CPU_R5000
>> 834 default y if SGI_IP22 || SGI_IP32 || LASAT
>> 835
>> 836 config BOARD_SCACHE
>> 837 bool
>> 838 depends on CPU_NEVADA || CPU_R4X00 || CPU_R5000
>> 839 default y if SGI_IP22 || (SGI_IP32 && CPU_R5000) || R5000_CPU_SCACHE
>> 840
>> 841 config SIBYTE_DMA_PAGEOPS
>> 842 bool "Use DMA to clear/copy pages"
>> 843 depends on CPU_SB1
>> 844 help
>> 845 Instead of using the CPU to zero and copy pages, use a Data Mover
>> 846 channel. These DMA channels are otherwise unused by the standard
>> 847 SiByte Linux port. Seems to give a small performance benefit.
>> 848
>> 849 config CPU_HAS_PREFETCH
>> 850 bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
>> 851 default y if CPU_RM7000 || CPU_MIPS64 || CPU_MIPS32
>> 852
>> 853 config VTAG_ICACHE
>> 854 bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
>> 855 default y if CPU_SB1
>> 856
251 choice 857 choice
252 prompt "Power Manager Instruction (wai !! 858 prompt "SB1 Pass"
253 default CPU_PM_NONE !! 859 depends on CPU_SB1
>> 860 default CPU_SB1_PASS_1
254 861
255 config CPU_PM_NONE !! 862 config CPU_SB1_PASS_1
256 bool "None" !! 863 bool "Pass1"
257 864
258 config CPU_PM_WAIT !! 865 config CPU_SB1_PASS_2
259 bool "wait" !! 866 bool "Pass2"
260 867
261 config CPU_PM_DOZE !! 868 config CPU_SB1_PASS_2_2
262 bool "doze" !! 869 bool "Pass2.2"
263 870
264 config CPU_PM_STOP <<
265 bool "stop" <<
266 endchoice 871 endchoice
267 872
268 menuconfig HAVE_TCM !! 873 config SB1_PASS_1_WORKAROUNDS
269 bool "Tightly-Coupled/Sram Memory" !! 874 bool
270 depends on !COMPILE_TEST !! 875 depends on CPU_SB1_PASS_1
271 help !! 876 default y
272 The implementation are not only used <<
273 but also used by sram on SOC bus. It <<
274 software interface, so that old tcm <<
275 re-used directly. <<
276 <<
277 if HAVE_TCM <<
278 config ITCM_RAM_BASE <<
279 hex "ITCM ram base" <<
280 default 0xffffffff <<
281 <<
282 config ITCM_NR_PAGES <<
283 int "Page count of ITCM size: NR*4KB" <<
284 range 1 256 <<
285 default 32 <<
286 <<
287 config HAVE_DTCM <<
288 bool "DTCM Support" <<
289 <<
290 config DTCM_RAM_BASE <<
291 hex "DTCM ram base" <<
292 depends on HAVE_DTCM <<
293 default 0xffffffff <<
294 <<
295 config DTCM_NR_PAGES <<
296 int "Page count of DTCM size: NR*4KB" <<
297 depends on HAVE_DTCM <<
298 range 1 256 <<
299 default 32 <<
300 endif <<
301 877
302 config CPU_HAS_VDSP !! 878 config SB1_PASS_2_WORKAROUNDS
303 bool "CPU has VDSP coprocessor" !! 879 bool
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 880 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
305 !! 881 default y
306 config CPU_HAS_FPU !! 882
307 bool "CPU has FPU coprocessor" !! 883 # Avoid prefetches on Pass 2 (before 2.2)
308 depends on CPU_CK807 || CPU_CK810 || C !! 884 # XXXKW for now, let 2.2 use same WORKAROUNDS flag as pre-2.2
309 !! 885 config SB1_CACHE_ERROR
310 config CPU_HAS_ICACHE_INS !! 886 bool "Support for SB1 Cache Error handler"
311 bool "CPU has Icache invalidate instru !! 887 depends on CPU_SB1
312 depends on CPU_HAS_CACHEV2 !! 888
313 !! 889 config SB1_CERR_IGNORE_RECOVERABLE
314 config CPU_HAS_TEE !! 890 bool "Ignore recoverable cache errors"
315 bool "CPU has Trusted Execution Enviro !! 891 depends on SB1_CACHE_ERROR
316 depends on CPU_CK810 !! 892
>> 893 config SB1_CERR_SPIN
>> 894 bool "Spin instead of running handler"
>> 895 depends on SB1_CACHE_ERROR
>> 896
>> 897 config 64BIT_PHYS_ADDR
>> 898 bool "Support for 64-bit physical address space"
>> 899 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
>> 900
>> 901 config CPU_ADVANCED
>> 902 bool "Override CPU Options"
>> 903 depends on MIPS32
>> 904 help
>> 905 Saying yes here allows you to select support for various features
>> 906 your CPU may or may not have. Most people should say N here.
>> 907
>> 908 config CPU_HAS_LLSC
>> 909 bool "ll/sc Instructions available" if CPU_ADVANCED
>> 910 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
>> 911 help
>> 912 MIPS R4000 series and later provide the Load Linked (ll)
>> 913 and Store Conditional (sc) instructions. More information is
>> 914 available at <http://www.go-ecs.com/mips/miptek1.htm>.
>> 915
>> 916 Say Y here if your CPU has the ll and sc instructions. Say Y here
>> 917 for better performance, N if you don't know. You must say Y here
>> 918 for multiprocessor machines.
>> 919
>> 920 config CPU_HAS_LLDSCD
>> 921 bool "lld/scd Instructions available" if CPU_ADVANCED
>> 922 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
>> 923 help
>> 924 Say Y here if your CPU has the lld and scd instructions, the 64-bit
>> 925 equivalents of ll and sc. Say Y here for better performance, N if
>> 926 you don't know. You must say Y here for multiprocessor machines.
>> 927
>> 928 config CPU_HAS_WB
>> 929 bool "Writeback Buffer available" if CPU_ADVANCED
>> 930 default y if !CPU_ADVANCED && (CPU_R3000 || CPU_VR41XX || CPU_TX39XX) && DECSTATION
>> 931 help
>> 932 Say N here for slightly better performance. You must say Y here for
>> 933 machines which require flushing of write buffers in software. Saying
>> 934 Y is the safe option; N may result in kernel malfunction and crashes.
>> 935
>> 936 config CPU_HAS_SYNC
>> 937 bool
>> 938 depends on !CPU_R3000
>> 939 default y
>> 940
>> 941 #
>> 942 # - Highmem only makes sense for the 32-bit kernel.
>> 943 # - The current highmem code will only work properly on physically indexed
>> 944 # caches such as R3000, SB1, R7000 or those that look like they're virtually
>> 945 # indexed such as R4000/R4400 SC and MC versions or R10000. So for the
>> 946 # moment we protect the user and offer the highmem option only on machines
>> 947 # where it's known to be safe. This will not offer highmem on a few systems
>> 948 # such as MIPS32 and MIPS64 CPUs which may have virtual and physically
>> 949 # indexed CPUs but we're playing safe.
>> 950 # - We should not offer highmem for system of which we already know that they
>> 951 # don't have memory configurations that could gain from highmem support in
>> 952 # the kernel because they don't support configurations with RAM at physical
>> 953 # addresses > 0x20000000.
>> 954 #
>> 955 config HIGHMEM
>> 956 bool "High Memory Support"
>> 957 depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_R10000) && !(BAGET_MIPS || DECSTATION)
317 958
318 config SMP 959 config SMP
319 bool "Symmetric Multi-Processing (SMP) !! 960 bool "Multi-Processing support"
320 depends on CPU_CK860 !! 961 depends on SIBYTE_SB1xxx_SOC && SIBYTE_SB1250 && !SIBYTE_STANDALONE || SGI_IP27
321 default n !! 962 ---help---
>> 963 This enables support for systems with more than one CPU. If you have
>> 964 a system with only one CPU, like most personal computers, say N. If
>> 965 you have a system with more than one CPU, say Y.
>> 966
>> 967 If you say N here, the kernel will run on single and multiprocessor
>> 968 machines, but will use only one CPU of a multiprocessor machine. If
>> 969 you say Y here, the kernel will run on many, but not all,
>> 970 singleprocessor machines. On a singleprocessor machine, the kernel
>> 971 will run faster if you say N here.
>> 972
>> 973 People using multiprocessor machines who say Y here should also say
>> 974 Y to "Enhanced Real Time Clock Support", below.
>> 975
>> 976 See also the <file:Documentation/smp.tex>,
>> 977 <file:Documentation/smp.txt> and the SMP-HOWTO available at
>> 978 <http://www.tldp.org/docs.html#howto>.
>> 979
>> 980 If you don't know what to do here, say N.
322 981
323 config NR_CPUS 982 config NR_CPUS
324 int "Maximum number of CPUs (2-32)" 983 int "Maximum number of CPUs (2-32)"
325 range 2 32 <<
326 depends on SMP 984 depends on SMP
327 default "4" !! 985 default "32"
>> 986 help
>> 987 This allows you to specify the maximum number of CPUs which this
>> 988 kernel will support. The maximum supported value is 32 and the
>> 989 minimum value which makes sense is 2.
328 990
329 config HIGHMEM !! 991 This is purely to save memory - each supported CPU adds
330 bool "High Memory Support" !! 992 approximately eight kilobytes to the kernel image.
331 depends on !CPU_CK610 !! 993
332 select KMAP_LOCAL !! 994 config PREEMPT
>> 995 bool "Preemptible Kernel"
>> 996 help
>> 997 This option reduces the latency of the kernel when reacting to
>> 998 real-time or interactive events by allowing a low priority process to
>> 999 be preempted even if it is in kernel mode executing a system call.
>> 1000 This allows applications to run more reliably even when the system is
>> 1001 under load.
>> 1002
>> 1003 config DEBUG_SPINLOCK_SLEEP
>> 1004 bool "Sleep-inside-spinlock checking"
>> 1005 help
>> 1006 If you say Y here, various routines which may sleep will become very
>> 1007 noisy if they are called with a spinlock held.
>> 1008
>> 1009 config RTC_DS1742
>> 1010 bool "DS1742 BRAM/RTC support"
>> 1011 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
>> 1012
>> 1013 config MIPS_INSANE_LARGE
>> 1014 bool "Support for large 64-bit configurations"
>> 1015 depends on CPU_R10000 && MIPS64
>> 1016 help
>> 1017 MIPS R10000 does support a 44 bit / 16TB address space as opposed to
>> 1018 previous 64-bit processors which only supported 40 bit / 1TB. If you
>> 1019 need processes of more than 1TB virtual address space, say Y here.
>> 1020 This will result in additional memory usage, so it is not
>> 1021 recommended for normal users.
>> 1022
>> 1023 config RWSEM_GENERIC_SPINLOCK
>> 1024 bool
>> 1025 default y
>> 1026
>> 1027 endmenu
>> 1028
>> 1029 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
>> 1030
>> 1031 config PCI
>> 1032 bool "Support for PCI controller"
>> 1033 depends on MIPS_DB1000 || DDB5074 || DDB5476 || DDB5477 || HP_LASERJET || LASAT || MIPS_IVR || MIPS_ATLAS || MIPS_COBALT || MIPS_EV64120 || MIPS_EV96100 || MIPS_ITE8172 || MIPS_MALTA || MOMENCO_OCELOT || MOMENCO_OCELOT_C || MOMENCO_OCELOT_G || MIPS_PB1000 || MIPS_PB1100 || MIPS_PB1500 || NEC_EAGLE || SGI_IP27 || SGI_IP32 || SIBYTE_SB1250 || SNI_RM200_PCI || TANBAC_TB0226 || TANBAC_TB0229 || TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 || VICTOR_MPC30X || ZAO_CAPCELLA
>> 1034 help
>> 1035 Find out whether you have a PCI motherboard. PCI is the name of a
>> 1036 bus system, i.e. the way the CPU talks to the other stuff inside
>> 1037 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
>> 1038 say Y, otherwise N.
>> 1039
>> 1040 The PCI-HOWTO, available from
>> 1041 <http://www.tldp.org/docs.html#howto>, contains valuable
>> 1042 information about which PCI hardware does work under Linux and which
>> 1043 doesn't.
>> 1044
>> 1045 source "drivers/pci/Kconfig"
>> 1046
>> 1047 config ISA
>> 1048 bool "ISA bus support"
>> 1049 depends on ACER_PICA_61 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || SNI_RM200_PCI
>> 1050 default y if TOSHIBA_RBTX4927 || DDB5476 || DDB5074 || IBM_WORKPAD || CASIO_E55
>> 1051 help
>> 1052 Find out whether you have ISA slots on your motherboard. ISA is the
>> 1053 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 1054 inside your box. Other bus systems are PCI, EISA, or VESA. ISA is
>> 1055 an older system, now being displaced by PCI; newer boards don't
>> 1056 support it. If you have ISA, say Y, otherwise N.
>> 1057
>> 1058 #
>> 1059 # The SCSI bits are needed to get the SCSI code to link ...
>> 1060 #
>> 1061 config GENERIC_ISA_DMA
>> 1062 bool
>> 1063 default y if ACER_PICA_61 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || SNI_RM200_PCI || SCSI
>> 1064
>> 1065 config EISA
>> 1066 bool "EISA support"
>> 1067 depends on ISA && (SGI_IP22 || SNI_RM200_PCI)
>> 1068 ---help---
>> 1069 The Extended Industry Standard Architecture (EISA) bus was
>> 1070 developed as an open alternative to the IBM MicroChannel bus.
>> 1071
>> 1072 The EISA bus provided some of the features of the IBM MicroChannel
>> 1073 bus while maintaining backward compatibility with cards made for
>> 1074 the older ISA bus. The EISA bus saw limited use between 1988 and
>> 1075 1995 when it was made obsolete by the PCI bus.
>> 1076
>> 1077 Say Y here if you are building a kernel for an EISA-based machine.
>> 1078
>> 1079 Otherwise, say N.
>> 1080
>> 1081 source "drivers/eisa/Kconfig"
>> 1082
>> 1083 config TC
>> 1084 bool "TURBOchannel support"
>> 1085 depends on DECSTATION
>> 1086 help
>> 1087 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
>> 1088 processors. Documentation on writing device drivers for TurboChannel
>> 1089 is available at:
>> 1090 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
>> 1091
>> 1092 #config ACCESSBUS
>> 1093 # bool "Access.Bus support"
>> 1094 # depends on TC
>> 1095
>> 1096 config MMU
>> 1097 bool
333 default y 1098 default y
334 1099
335 config DRAM_BASE !! 1100 config MCA
336 hex "DRAM start addr (the same with me !! 1101 bool
337 default 0x0 <<
338 1102
339 config HOTPLUG_CPU !! 1103 config SBUS
340 bool "Support for hot-pluggable CPUs" !! 1104 bool
341 select GENERIC_IRQ_MIGRATION !! 1105
342 depends on SMP !! 1106 config HOTPLUG
>> 1107 bool "Support for hot-pluggable devices"
>> 1108 ---help---
>> 1109 Say Y here if you want to plug devices into your computer while
>> 1110 the system is running, and be able to use them quickly. In many
>> 1111 cases, the devices can likewise be unplugged at any time too.
>> 1112
>> 1113 One well known example of this is PCMCIA- or PC-cards, credit-card
>> 1114 size devices such as network cards, modems or hard drives which are
>> 1115 plugged into slots found on all modern laptop computers. Another
>> 1116 example, used on modern desktops as well as laptops, is USB.
>> 1117
>> 1118 Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
>> 1119 software (at <http://linux-hotplug.sourceforge.net/>) and install it.
>> 1120 Then your kernel will automatically call out to a user mode "policy
>> 1121 agent" (/sbin/hotplug) to load modules and set up software needed
>> 1122 to use devices as you hotplug them.
>> 1123
>> 1124 source "drivers/pcmcia/Kconfig"
>> 1125
>> 1126 source "drivers/pci/hotplug/Kconfig"
>> 1127
>> 1128 endmenu
>> 1129
>> 1130 menu "Executable file formats"
>> 1131
>> 1132 source "fs/Kconfig.binfmt"
>> 1133
>> 1134 config TRAD_SIGNALS
>> 1135 bool
>> 1136 default y if MIPS32
>> 1137
>> 1138 config BINFMT_IRIX
>> 1139 bool "Include IRIX binary compatibility"
>> 1140 depends on !CPU_LITTLE_ENDIAN && MIPS32
>> 1141
>> 1142 config MIPS32_COMPAT
>> 1143 bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
>> 1144 depends on MIPS64
343 help 1145 help
344 Say Y here to allow turning CPUs off !! 1146 Select this option if you want Linux/MIPS 32-bit binary
345 controlled through /sys/devices/syst !! 1147 compatibility. Since all software available for Linux/MIPS is
>> 1148 currently 32-bit you should say Y here.
346 1149
347 Say N if you want to disable CPU hot !! 1150 config COMPAT
>> 1151 bool
>> 1152 depends on MIPS32_COMPAT
>> 1153 default y
348 1154
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 1155 config MIPS32_O32
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 1156 bool "Kernel support for o32 binaries"
351 depends on CPU_CK807 || CPU_CK810 || C !! 1157 depends on MIPS32_COMPAT
352 help 1158 help
353 Say Y here to enable EFFICIENT_UNALI !! 1159 Select this option if you want to run o32 binaries. These are pure
354 deal with unaligned access by hardwa !! 1160 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>> 1161 existing binaries are in this format.
>> 1162
>> 1163 If unsure, say Y.
>> 1164
>> 1165 config MIPS32_N32
>> 1166 bool "Kernel support for n32 binaries"
>> 1167 depends on MIPS32_COMPAT
>> 1168 help
>> 1169 Select this option if you want to run n32 binaries. These are
>> 1170 64-bit binaries using 32-bit quantities for addressing and certain
>> 1171 data that would normally be 64-bit. They are used in special
>> 1172 cases.
>> 1173
>> 1174 If unsure, say N.
>> 1175
>> 1176 config BINFMT_ELF32
>> 1177 bool
>> 1178 default y if MIPS32_O32 || MIPS32_N32
>> 1179
>> 1180 config PM
>> 1181 bool "Power Management support (EXPERIMENTAL)"
>> 1182 depends on EXPERIMENTAL && SOC_AU1X00
355 1183
356 endmenu 1184 endmenu
357 1185
358 source "arch/csky/Kconfig.platforms" !! 1186 source "drivers/mtd/Kconfig"
>> 1187
>> 1188 source "drivers/parport/Kconfig"
>> 1189
>> 1190 source "drivers/pnp/Kconfig"
>> 1191
>> 1192 source "drivers/base/Kconfig"
>> 1193
>> 1194 source "drivers/block/Kconfig"
>> 1195
>> 1196
>> 1197 menu "MIPS initrd options"
>> 1198 depends on BLK_DEV_INITRD
>> 1199
>> 1200 config EMBEDDED_RAMDISK
>> 1201 bool "Embed root filesystem ramdisk into the kernel"
>> 1202
>> 1203 config EMBEDDED_RAMDISK_IMAGE
>> 1204 string "Filename of gziped ramdisk image"
>> 1205 depends on EMBEDDED_RAMDISK
>> 1206 default "ramdisk.gz"
>> 1207 help
>> 1208 This is the filename of the ramdisk image to be built into the
>> 1209 kernel. Relative pathnames are relative to arch/mips/ramdisk/.
>> 1210 The ramdisk image is not part of the kernel distribution; you must
>> 1211 provide one yourself.
>> 1212
>> 1213 endmenu
>> 1214
>> 1215 source "drivers/ide/Kconfig"
>> 1216
>> 1217 source "drivers/scsi/Kconfig"
>> 1218
>> 1219 source "drivers/cdrom/Kconfig"
>> 1220
>> 1221 source "drivers/md/Kconfig"
>> 1222
>> 1223 source "drivers/message/fusion/Kconfig"
>> 1224
>> 1225 source "drivers/ieee1394/Kconfig"
>> 1226
>> 1227 source "drivers/message/i2o/Kconfig"
>> 1228
>> 1229 source "net/Kconfig"
>> 1230
>> 1231 source "drivers/isdn/Kconfig"
>> 1232
>> 1233 source "drivers/telephony/Kconfig"
>> 1234
>> 1235 #
>> 1236 # input before char - char/joystick depends on it. As does USB.
>> 1237 #
>> 1238 source "drivers/input/Kconfig"
>> 1239
>> 1240 source "drivers/char/Kconfig"
>> 1241
>> 1242 #source drivers/misc/Config.in
>> 1243
>> 1244 source "drivers/media/Kconfig"
>> 1245
>> 1246 source "fs/Kconfig"
>> 1247
>> 1248 source "drivers/video/Kconfig"
>> 1249
>> 1250
>> 1251 menu "Sound"
>> 1252
>> 1253 config SOUND
>> 1254 tristate "Sound card support"
>> 1255 ---help---
>> 1256 If you have a sound card in your computer, i.e. if it can say more
>> 1257 than an occasional beep, say Y. Be sure to have all the information
>> 1258 about your sound card and its configuration down (I/O port,
>> 1259 interrupt and DMA channel), because you will be asked for it.
>> 1260
>> 1261 You want to read the Sound-HOWTO, available from
>> 1262 <http://www.tldp.org/docs.html#howto>. General information about
>> 1263 the modular sound system is contained in the files
>> 1264 <file:Documentation/sound/Introduction>. The file
>> 1265 <file:Documentation/sound/README.OSS> contains some slightly
>> 1266 outdated but still useful information as well.
>> 1267
>> 1268 If you have a PnP sound card and you want to configure it at boot
>> 1269 time using the ISA PnP tools (read
>> 1270 <http://www.roestock.demon.co.uk/isapnptools/>), then you need to
>> 1271 compile the sound card support as a module and load that module
>> 1272 after the PnP configuration is finished. To do this, choose M here
>> 1273 and read <file:Documentation/sound/README.modules>; the module
>> 1274 will be called soundcore.
>> 1275
>> 1276 I'm told that even without a sound card, you can make your computer
>> 1277 say more than an occasional beep, by programming the PC speaker.
>> 1278 Kernel patches and supporting utilities to do that are in the pcsp
>> 1279 package, available at <ftp://ftp.infradead.org/pub/pcsp/>.
>> 1280
>> 1281 source "sound/Kconfig"
>> 1282
>> 1283 endmenu
>> 1284
>> 1285 source "drivers/usb/Kconfig"
>> 1286
>> 1287
>> 1288 menu "Kernel hacking"
>> 1289
>> 1290 config CROSSCOMPILE
>> 1291 bool "Are you using a crosscompiler"
>> 1292 help
>> 1293 Say Y here if you are compiling the kernel on a different
>> 1294 architecture than the one it is intended to run on.
>> 1295
>> 1296 config DEBUG_KERNEL
>> 1297 bool "Kernel debugging"
>> 1298
>> 1299 config KGDB
>> 1300 bool "Remote GDB kernel debugging"
>> 1301 depends on DEBUG_KERNEL
>> 1302 help
>> 1303 If you say Y here, it will be possible to remotely debug the MIPS
>> 1304 kernel using gdb. This enlarges your kernel image disk size by
>> 1305 several megabytes and requires a machine with more than 16 MB,
>> 1306 better 32 MB RAM to avoid excessive linking time. This is only
>> 1307 useful for kernel hackers. If unsure, say N.
>> 1308
>> 1309 config GDB_CONSOLE
>> 1310 bool "Console output to GDB"
>> 1311 depends on KGDB
>> 1312 help
>> 1313 If you are using GDB for remote debugging over a serial port and
>> 1314 would like kernel messages to be formatted into GDB $O packets so
>> 1315 that GDB prints them as program output, say 'Y'.
>> 1316
>> 1317 config RUNTIME_DEBUG
>> 1318 bool "Enable run-time debugging"
>> 1319 depends on DEBUG_KERNEL
>> 1320 help
>> 1321 If you say Y here, some debugging macros will do run-time checking.
>> 1322 If you say N here, those macros will mostly turn to no-ops. See
>> 1323 include/asm-mips/debug.h for debuging macros.
>> 1324 If unsure, say N.
>> 1325
>> 1326
>> 1327 config MAGIC_SYSRQ
>> 1328 bool "Magic SysRq key"
>> 1329 depends on DEBUG_KERNEL
>> 1330 help
>> 1331 If you say Y here, you will have some control over the system even
>> 1332 if the system crashes for example during kernel debugging (e.g., you
>> 1333 will be able to flush the buffer cache to disk, reboot the system
>> 1334 immediately or dump some status information). This is accomplished
>> 1335 by pressing various keys while holding SysRq (Alt+PrintScreen). It
>> 1336 also works on a serial console (on PC hardware at least), if you
>> 1337 send a BREAK and then within 5 seconds a command keypress. The
>> 1338 keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
>> 1339 unless you really know what this hack does.
>> 1340
>> 1341 config MIPS_UNCACHED
>> 1342 bool "Run uncached"
>> 1343 depends on DEBUG_KERNEL && !SMP && !SGI_IP27
>> 1344 help
>> 1345 If you say Y here there kernel will disable all CPU caches. This will
>> 1346 reduce the system's performance dramatically but can help finding
>> 1347 otherwise hard to track bugs. It can also useful if you're doing
>> 1348 hardware debugging with a logic analyzer and need to see all traffic
>> 1349 on the bus.
>> 1350
>> 1351 config DEBUG_HIGHMEM
>> 1352 bool "Highmem debugging"
>> 1353 depends on DEBUG_KERNEL && HIGHMEM
>> 1354
>> 1355 endmenu
>> 1356
>> 1357 source "security/Kconfig"
>> 1358
>> 1359 source "crypto/Kconfig"
359 1360
360 source "kernel/Kconfig.hz" !! 1361 source "lib/Kconfig"
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