1 # SPDX-License-Identifier: GPL-2.0 !! 1 # SPDX-License-Identifier: GPL-2.0-only
2 # !! 2 config 64BIT
3 # For a description of the syntax of this conf !! 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
4 # see Documentation/kbuild/kconfig-language.rs !! 4 default "$(ARCH)" = "sparc64"
5 # !! 5 help
>> 6 SPARC is a family of RISC microprocessors designed and marketed by
>> 7 Sun Microsystems, incorporated. They are very widely found in Sun
>> 8 workstations and clones.
6 9
7 config OPENRISC !! 10 Say yes to build a 64-bit kernel - formerly known as sparc64
8 def_bool y !! 11 Say no to build a 32-bit kernel - formerly known as sparc
9 select ARCH_32BIT_OFF_T !! 12
10 select ARCH_HAS_DMA_SET_UNCACHED !! 13 config SPARC
11 select ARCH_HAS_DMA_CLEAR_UNCACHED !! 14 bool
12 select ARCH_HAS_SYNC_DMA_FOR_DEVICE !! 15 default y
13 select COMMON_CLK !! 16 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
>> 17 select ARCH_MIGHT_HAVE_PC_SERIO
>> 18 select DMA_OPS
14 select OF 19 select OF
15 select OF_EARLY_FLATTREE !! 20 select OF_PROMTREE
16 select IRQ_DOMAIN !! 21 select HAVE_ASM_MODVERSIONS
17 select GPIOLIB !! 22 select HAVE_ARCH_KGDB if !SMP || SPARC64
18 select HAVE_ARCH_TRACEHOOK 23 select HAVE_ARCH_TRACEHOOK
19 select SPARSE_IRQ !! 24 select HAVE_ARCH_SECCOMP if SPARC64
20 select GENERIC_IRQ_CHIP !! 25 select HAVE_EXIT_THREAD
21 select GENERIC_IRQ_PROBE !! 26 select HAVE_PCI
>> 27 select SYSCTL_EXCEPTION_TRACE
>> 28 select RTC_CLASS
>> 29 select RTC_DRV_M48T59
>> 30 select RTC_SYSTOHC
>> 31 select HAVE_ARCH_JUMP_LABEL if SPARC64
22 select GENERIC_IRQ_SHOW 32 select GENERIC_IRQ_SHOW
>> 33 select ARCH_WANT_IPC_PARSE_VERSION
23 select GENERIC_PCI_IOMAP 34 select GENERIC_PCI_IOMAP
24 select GENERIC_IOREMAP !! 35 select HAVE_NMI_WATCHDOG if SPARC64
25 select GENERIC_CPU_DEVICES !! 36 select HAVE_CBPF_JIT if SPARC32
26 select HAVE_PCI !! 37 select HAVE_EBPF_JIT if SPARC64
27 select HAVE_UID16 !! 38 select HAVE_DEBUG_BUGVERBOSE
28 select HAVE_PAGE_SIZE_8KB <<
29 select GENERIC_ATOMIC64 <<
30 select GENERIC_CLOCKEVENTS_BROADCAST <<
31 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_SMP_IDLE_THREAD
32 select MODULES_USE_ELF_RELA 40 select MODULES_USE_ELF_RELA
33 select HAVE_DEBUG_STACKOVERFLOW !! 41 select PCI_SYSCALL if PCI
34 select OR1K_PIC !! 42 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
35 select CPU_NO_EFFICIENT_FFS if !OPENRI !! 43 select ODD_RT_SIGACTION
36 select ARCH_USE_QUEUED_RWLOCKS !! 44 select OLD_SIGSUSPEND
37 select OMPIC if SMP !! 45 select CPU_NO_EFFICIENT_FFS
38 select PCI_DOMAINS_GENERIC if PCI !! 46 select LOCKDEP_SMALL if LOCKDEP
39 select PCI_MSI if PCI !! 47 select NEED_DMA_MAP_STATE
40 select ARCH_WANT_FRAME_POINTERS !! 48 select NEED_SG_DMA_LENGTH
41 select GENERIC_IRQ_MULTI_HANDLER <<
42 select MMU_GATHER_NO_RANGE if MMU <<
43 select TRACE_IRQFLAGS_SUPPORT 49 select TRACE_IRQFLAGS_SUPPORT
44 50
45 config CPU_BIG_ENDIAN !! 51 config SPARC32
46 def_bool y !! 52 def_bool !64BIT
>> 53 select ARCH_32BIT_OFF_T
>> 54 select ARCH_HAS_SYNC_DMA_FOR_CPU
>> 55 select CLZ_TAB
>> 56 select DMA_DIRECT_REMAP
>> 57 select GENERIC_ATOMIC64
>> 58 select HAVE_UID16
>> 59 select OLD_SIGACTION
>> 60 select ZONE_DMA
47 61
48 config MMU !! 62 config SPARC64
49 def_bool y !! 63 def_bool 64BIT
>> 64 select ALTERNATE_USER_ADDRESS_SPACE
>> 65 select HAVE_FUNCTION_TRACER
>> 66 select HAVE_FUNCTION_GRAPH_TRACER
>> 67 select HAVE_KRETPROBES
>> 68 select HAVE_KPROBES
>> 69 select MMU_GATHER_RCU_TABLE_FREE if SMP
>> 70 select MMU_GATHER_MERGE_VMAS
>> 71 select MMU_GATHER_NO_FLUSH_CACHE
>> 72 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 73 select HAVE_DYNAMIC_FTRACE
>> 74 select HAVE_FTRACE_MCOUNT_RECORD
>> 75 select HAVE_SYSCALL_TRACEPOINTS
>> 76 select HAVE_CONTEXT_TRACKING_USER
>> 77 select HAVE_TIF_NOHZ
>> 78 select HAVE_DEBUG_KMEMLEAK
>> 79 select IOMMU_HELPER
>> 80 select SPARSE_IRQ
>> 81 select RTC_DRV_CMOS
>> 82 select RTC_DRV_BQ4802
>> 83 select RTC_DRV_SUN4V
>> 84 select RTC_DRV_STARFIRE
>> 85 select HAVE_PERF_EVENTS
>> 86 select PERF_USE_VMALLOC
>> 87 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 88 select HAVE_C_RECORDMCOUNT
>> 89 select HAVE_ARCH_AUDITSYSCALL
>> 90 select ARCH_SUPPORTS_ATOMIC_RMW
>> 91 select ARCH_SUPPORTS_DEBUG_PAGEALLOC
>> 92 select HAVE_NMI
>> 93 select HAVE_REGS_AND_STACK_ACCESS_API
>> 94 select ARCH_USE_QUEUED_RWLOCKS
>> 95 select ARCH_USE_QUEUED_SPINLOCKS
>> 96 select GENERIC_TIME_VSYSCALL
>> 97 select ARCH_CLOCKSOURCE_DATA
>> 98 select ARCH_HAS_PTE_SPECIAL
>> 99 select PCI_DOMAINS if PCI
>> 100 select ARCH_HAS_GIGANTIC_PAGE
>> 101 select HAVE_SOFTIRQ_ON_OWN_STACK
>> 102 select HAVE_SETUP_PER_CPU_AREA
>> 103 select NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 104 select NEED_PER_CPU_PAGE_FIRST_CHUNK
50 105
51 config GENERIC_HWEIGHT !! 106 config ARCH_PROC_KCORE_TEXT
52 def_bool y 107 def_bool y
53 108
54 config NO_IOPORT_MAP !! 109 config CPU_BIG_ENDIAN
55 def_bool y 110 def_bool y
56 111
57 # For now, use generic checksum functions !! 112 config ARCH_ATU
58 #These can be reimplemented in assembly later !! 113 bool
59 config GENERIC_CSUM !! 114 default y if SPARC64
60 def_bool y <<
61 115
62 config STACKTRACE_SUPPORT 116 config STACKTRACE_SUPPORT
63 def_bool y !! 117 bool
>> 118 default y if SPARC64
64 119
65 config LOCKDEP_SUPPORT 120 config LOCKDEP_SUPPORT
66 def_bool y !! 121 bool
>> 122 default y if SPARC64
67 123
68 menu "Processor type and features" !! 124 config ARCH_HIBERNATION_POSSIBLE
>> 125 def_bool y if SPARC64
69 126
70 choice !! 127 config AUDIT_ARCH
71 prompt "Subarchitecture" !! 128 bool
72 default OR1K_1200 !! 129 default y
73 130
74 config OR1K_1200 !! 131 config MMU
75 bool "OR1200" !! 132 bool
76 help !! 133 default y
77 Generic OpenRISC 1200 architecture !! 134
>> 135 config HIGHMEM
>> 136 bool
>> 137 default y if SPARC32
>> 138 select KMAP_LOCAL
>> 139
>> 140 config GENERIC_ISA_DMA
>> 141 bool
>> 142 default y if SPARC32
>> 143
>> 144 config PGTABLE_LEVELS
>> 145 default 4 if 64BIT
>> 146 default 3
>> 147
>> 148 config ARCH_SUPPORTS_UPROBES
>> 149 def_bool y if SPARC64
78 150
79 endchoice !! 151 menu "Processor type and features"
80 152
81 config DCACHE_WRITETHROUGH !! 153 config SMP
82 bool "Have write through data caches" !! 154 bool "Symmetric multi-processing support"
83 default n <<
84 help 155 help
85 Select this if your implementation f !! 156 This enables support for systems with more than one CPU. If you have
86 Selecting 'N' here will allow the ke !! 157 a system with only one CPU, say N. If you have a system with more
87 caches at relevant times. Most OpenR !! 158 than one CPU, say Y.
88 through data caches. <<
89 159
90 If unsure say N here !! 160 If you say N here, the kernel will run on uni- and multiprocessor
>> 161 machines, but will use only one CPU of a multiprocessor machine. If
>> 162 you say Y here, the kernel will run on many, but not all,
>> 163 uniprocessor machines. On a uniprocessor machine, the kernel
>> 164 will run faster if you say N here.
>> 165
>> 166 People using multiprocessor machines who say Y here should also say
>> 167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 168 Management" code will be disabled if you say Y here.
91 169
92 config OPENRISC_BUILTIN_DTB !! 170 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
93 string "Builtin DTB" !! 171 available at <https://www.tldp.org/docs.html#howto>.
94 default "" <<
95 172
96 menu "Class II Instructions" !! 173 If you don't know what to do here, say N.
97 174
98 config OPENRISC_HAVE_INST_FF1 !! 175 config NR_CPUS
99 bool "Have instruction l.ff1" !! 176 int "Maximum number of CPUs"
100 default y !! 177 depends on SMP
101 help !! 178 range 2 32 if SPARC32
102 Select this if your implementation h !! 179 range 2 4096 if SPARC64
>> 180 default 32 if SPARC32
>> 181 default 4096 if SPARC64
103 182
104 config OPENRISC_HAVE_INST_FL1 !! 183 source "kernel/Kconfig.hz"
105 bool "Have instruction l.fl1" <<
106 default y <<
107 help <<
108 Select this if your implementation h <<
109 184
110 config OPENRISC_HAVE_INST_MUL !! 185 config GENERIC_HWEIGHT
111 bool "Have instruction l.mul for hardw !! 186 bool
112 default y 187 default y
113 help <<
114 Select this if your implementation h <<
115 188
116 config OPENRISC_HAVE_INST_DIV !! 189 config GENERIC_CALIBRATE_DELAY
117 bool "Have instruction l.div for hardw !! 190 bool
118 default y 191 default y
119 help <<
120 Select this if your implementation h <<
121 192
122 config OPENRISC_HAVE_INST_CMOV !! 193 config ARCH_MAY_HAVE_PC_FDC
123 bool "Have instruction l.cmov for cond !! 194 bool
124 default n !! 195 default y
125 help <<
126 This config enables gcc to generate <<
127 the kernel which in general will imp <<
128 binary size. <<
129 196
130 Select this if your implementation h !! 197 config EMULATED_CMPXCHG
131 l.cmov conistional move instruction. !! 198 bool
>> 199 default y if SPARC32
>> 200 help
>> 201 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 202 is emulated, and therefore it is not completely atomic.
>> 203
>> 204 # Makefile helpers
>> 205 config SPARC32_SMP
>> 206 bool
>> 207 default y
>> 208 depends on SPARC32 && SMP
132 209
133 Say N if you are unsure. !! 210 config SPARC64_SMP
>> 211 bool
>> 212 default y
>> 213 depends on SPARC64 && SMP
134 214
135 config OPENRISC_HAVE_INST_ROR !! 215 config EARLYFB
136 bool "Have instruction l.ror for rotat !! 216 bool "Support for early boot text console"
137 default n !! 217 default y
>> 218 depends on SPARC64
138 help 219 help
139 This config enables gcc to generate !! 220 Say Y here to enable a faster early framebuffer boot console.
140 the kernel which in general will imp <<
141 binary size. <<
142 <<
143 Select this if your implementation h <<
144 l.ror rotate right instruction. <<
145 <<
146 Say N if you are unsure. <<
147 221
148 config OPENRISC_HAVE_INST_RORI !! 222 config HOTPLUG_CPU
149 bool "Have instruction l.rori for rota !! 223 bool "Support for hot-pluggable CPUs"
150 default n !! 224 depends on SPARC64 && SMP
151 help 225 help
152 This config enables gcc to generate !! 226 Say Y here to experiment with turning CPUs off and on. CPUs
153 the kernel which in general will imp !! 227 can be controlled through /sys/devices/system/cpu/cpu#.
154 binary size. !! 228 Say N if you want to disable CPU hotplug.
155 229
156 Select this if your implementation h !! 230 if SPARC64
157 l.rori rotate right with immediate i !! 231 source "drivers/cpufreq/Kconfig"
>> 232 endif
158 233
159 Say N if you are unsure. !! 234 config US3_MC
>> 235 tristate "UltraSPARC-III Memory Controller driver"
>> 236 depends on SPARC64
>> 237 default y
>> 238 help
>> 239 This adds a driver for the UltraSPARC-III memory controller.
>> 240 Loading this driver allows exact mnemonic strings to be
>> 241 printed in the event of a memory error, so that the faulty DIMM
>> 242 on the motherboard can be matched to the error.
>> 243
>> 244 If in doubt, say Y, as this information can be very useful.
>> 245
>> 246 # Global things across all Sun machines.
>> 247 config GENERIC_LOCKBREAK
>> 248 bool
>> 249 default y
>> 250 depends on SPARC64 && SMP && PREEMPTION
160 251
161 config OPENRISC_HAVE_INST_SEXT !! 252 config NUMA
162 bool "Have instructions l.ext* for sig !! 253 bool "NUMA support"
163 default n !! 254 depends on SPARC64 && SMP
>> 255
>> 256 config NODES_SHIFT
>> 257 int "Maximum NUMA Nodes (as a power of 2)"
>> 258 range 4 5 if SPARC64
>> 259 default "5"
>> 260 depends on NUMA
>> 261 help
>> 262 Specify the maximum number of NUMA Nodes available on the target
>> 263 system. Increases memory reserved to accommodate various tables.
>> 264
>> 265 config ARCH_SPARSEMEM_ENABLE
>> 266 def_bool y if SPARC64
>> 267 select SPARSEMEM_VMEMMAP_ENABLE
>> 268
>> 269 config ARCH_SPARSEMEM_DEFAULT
>> 270 def_bool y if SPARC64
>> 271
>> 272 config ARCH_FORCE_MAX_ORDER
>> 273 int "Maximum zone order"
>> 274 default "13"
>> 275 help
>> 276 The kernel memory allocator divides physically contiguous memory
>> 277 blocks into "zones", where each zone is a power of two number of
>> 278 pages. This option selects the largest power of two that the kernel
>> 279 keeps in the memory allocator. If you need to allocate very large
>> 280 blocks of physically contiguous memory, then you may need to
>> 281 increase this value.
>> 282
>> 283 This config option is actually maximum order plus one. For example,
>> 284 a value of 13 means that the largest free memory block is 2^12 pages.
>> 285
>> 286 if SPARC64 || COMPILE_TEST
>> 287 source "kernel/power/Kconfig"
>> 288 endif
>> 289
>> 290 config SCHED_SMT
>> 291 bool "SMT (Hyperthreading) scheduler support"
>> 292 depends on SPARC64 && SMP
>> 293 default y
>> 294 help
>> 295 SMT scheduler support improves the CPU scheduler's decision making
>> 296 when dealing with SPARC cpus at a cost of slightly increased overhead
>> 297 in some places. If unsure say N here.
>> 298
>> 299 config SCHED_MC
>> 300 bool "Multi-core scheduler support"
>> 301 depends on SPARC64 && SMP
>> 302 default y
164 help 303 help
165 This config enables gcc to generate !! 304 Multi-core scheduler support improves the CPU scheduler's decision
166 the kernel which in general will imp !! 305 making when dealing with multi-core CPU chips at a cost of slightly
167 binary size. !! 306 increased overhead in some places. If unsure say N here.
>> 307
>> 308 config CMDLINE_BOOL
>> 309 bool "Default bootloader kernel arguments"
>> 310 depends on SPARC64
168 311
169 Select this if your implementation h !! 312 config CMDLINE
170 l.exths, l.extbs, l.exthz and l.extb !! 313 string "Initial kernel command string"
>> 314 depends on CMDLINE_BOOL
>> 315 default "console=ttyS0,9600 root=/dev/sda1"
>> 316 help
>> 317 Say Y here if you want to be able to pass default arguments to
>> 318 the kernel. This will be overridden by the bootloader, if you
>> 319 use one (such as SILO). This is most useful if you want to boot
>> 320 a kernel from TFTP, and want default options to be available
>> 321 with having them passed on the command line.
>> 322
>> 323 NOTE: This option WILL override the PROM bootargs setting!
>> 324
>> 325 config SUN_PM
>> 326 bool
>> 327 default y if SPARC32
>> 328 help
>> 329 Enable power management and CPU standby features on supported
>> 330 SPARC platforms.
>> 331
>> 332 config SPARC_LED
>> 333 tristate "Sun4m LED driver"
>> 334 depends on SPARC32
>> 335 help
>> 336 This driver toggles the front-panel LED on sun4m systems
>> 337 in a user-specifiable manner. Its state can be probed
>> 338 by reading /proc/led and its blinking mode can be changed
>> 339 via writes to /proc/led
>> 340
>> 341 config SERIAL_CONSOLE
>> 342 bool
>> 343 depends on SPARC32
>> 344 default y
>> 345 help
>> 346 If you say Y here, it will be possible to use a serial port as the
>> 347 system console (the system console is the device which receives all
>> 348 kernel messages and warnings and which allows logins in single user
>> 349 mode). This could be useful if some terminal or printer is connected
>> 350 to that serial port.
>> 351
>> 352 Even if you say Y here, the currently visible virtual console
>> 353 (/dev/tty0) will still be used as the system console by default, but
>> 354 you can alter that using a kernel command line option such as
>> 355 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 356 your boot loader (silo) about how to pass options to the kernel at
>> 357 boot time.)
>> 358
>> 359 If you don't have a graphics card installed and you say Y here, the
>> 360 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 361 system console.
>> 362
>> 363 If unsure, say N.
>> 364
>> 365 config SPARC_LEON
>> 366 bool "Sparc Leon processor family"
>> 367 depends on SPARC32
>> 368 select USB_EHCI_BIG_ENDIAN_MMIO
>> 369 select USB_EHCI_BIG_ENDIAN_DESC
>> 370 select USB_UHCI_BIG_ENDIAN_MMIO
>> 371 select USB_UHCI_BIG_ENDIAN_DESC
>> 372 help
>> 373 If you say Y here if you are running on a SPARC-LEON processor.
>> 374 The LEON processor is a synthesizable VHDL model of the
>> 375 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 376 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 377 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 378 toolchain at www.gaisler.com.
>> 379
>> 380 if SPARC_LEON
>> 381 menu "U-Boot options"
>> 382
>> 383 config UBOOT_LOAD_ADDR
>> 384 hex "uImage Load Address"
>> 385 default 0x40004000
>> 386 help
>> 387 U-Boot kernel load address, the address in physical address space
>> 388 where u-boot will place the Linux kernel before booting it.
>> 389 This address is normally the base address of main memory + 0x4000.
>> 390
>> 391 config UBOOT_FLASH_ADDR
>> 392 hex "uImage.o Load Address"
>> 393 default 0x00080000
>> 394 help
>> 395 Optional setting only affecting the uImage.o ELF-image used to
>> 396 download the uImage file to the target using a ELF-loader other than
>> 397 U-Boot. It may for example be used to download an uImage to FLASH with
>> 398 the GRMON utility before even starting u-boot.
>> 399
>> 400 config UBOOT_ENTRY_ADDR
>> 401 hex "uImage Entry Address"
>> 402 default 0xf0004000
>> 403 help
>> 404 Do not change this unless you know what you're doing. This is
>> 405 hardcoded by the SPARC32 and LEON port.
171 406
172 Say N if you are unsure. !! 407 This is the virtual address u-boot jumps to when booting the Linux
>> 408 Kernel.
173 409
174 endmenu 410 endmenu
>> 411 endif
175 412
176 config NR_CPUS !! 413 endmenu
177 int "Maximum number of CPUs (2-32)" <<
178 range 2 32 <<
179 depends on SMP <<
180 default "2" <<
181 <<
182 config SMP <<
183 bool "Symmetric Multi-Processing suppo <<
184 help <<
185 This enables support for systems wit <<
186 a system with only one CPU, say N. I <<
187 than one CPU, say Y. <<
188 414
189 If you don't know what to do here, s !! 415 menu "Bus options (PCI etc.)"
>> 416 config SBUS
>> 417 bool
>> 418 default y
190 419
191 config FPU !! 420 config SBUSCHAR
192 bool "FPU support" !! 421 bool
193 default y 422 default y
194 help <<
195 Say N here if you want to disable al <<
196 in the kernel and reduce binary size <<
197 423
198 If you don't know what to do here, s !! 424 config SUN_LDOMS
>> 425 bool "Sun Logical Domains support"
>> 426 depends on SPARC64
>> 427 help
>> 428 Say Y here is you want to support virtual devices via
>> 429 Logical Domains.
>> 430
>> 431 config PCIC_PCI
>> 432 bool
>> 433 depends on PCI && SPARC32 && !SPARC_LEON
>> 434 default y
199 435
200 source "kernel/Kconfig.hz" !! 436 config LEON_PCI
>> 437 bool
>> 438 depends on PCI && SPARC_LEON
>> 439 default y
201 440
202 config OPENRISC_NO_SPR_SR_DSX !! 441 config SPARC_GRPCI1
203 bool "use SPR_SR_DSX software emulatio !! 442 bool "GRPCI Host Bridge Support"
>> 443 depends on LEON_PCI
204 default y 444 default y
205 help 445 help
206 SPR_SR_DSX bit is status register bi !! 446 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
207 the last exception has happened in d !! 447 PCI host controller is typically found in GRLIB SPARC32/LEON
208 !! 448 systems. The driver has one property (all_pci_errors) controlled
209 OpenRISC architecture makes it optio !! 449 from the bootloader that makes the GRPCI to generate interrupts
210 in hardware and the OR1200 does not !! 450 on detected PCI Parity and System errors.
211 !! 451
212 Say N here if you know that your Ope !! 452 config SPARC_GRPCI2
213 SPR_SR_DSX bit implemented. Say Y if !! 453 bool "GRPCI2 Host Bridge Support"
214 !! 454 depends on LEON_PCI
215 config OPENRISC_HAVE_SHADOW_GPRS !! 455 default y
216 bool "Support for shadow gpr files" if <<
217 default y if SMP <<
218 help 456 help
219 Say Y here if your OpenRISC processo !! 457 Say Y here to include the GRPCI2 Host Bridge Driver.
220 register files. They will in such ca <<
221 scratch reg storage on exception ent <<
222 <<
223 On SMP systems, this feature is mand <<
224 On a unicore system it's safe to say <<
225 458
226 config CMDLINE !! 459 config SUN_OPENPROMFS
227 string "Default kernel command string" !! 460 tristate "Openprom tree appears in /proc/openprom"
228 default "" <<
229 help 461 help
230 On some architectures there is curre !! 462 If you say Y, the OpenPROM device tree will be available as a
231 to pass arguments to the kernel. For !! 463 virtual file system, which you can mount to /proc/openprom by "mount
232 supply some command-line options at !! 464 -t openpromfs none /proc/openprom".
233 here. <<
234 <<
235 menu "Debugging options" <<
236 465
237 config JUMP_UPON_UNHANDLED_EXCEPTION !! 466 To compile the /proc/openprom support as a module, choose M here: the
238 bool "Try to die gracefully" !! 467 module will be called openpromfs.
239 default y <<
240 help <<
241 Now this puts kernel into infinite l <<
242 your kernel crashes this doesn't hav <<
243 468
244 Say Y if you are unsure. !! 469 Only choose N if you know in advance that you will not need to modify
>> 470 OpenPROM settings on the running system.
245 471
246 config OPENRISC_ESR_EXCEPTION_BUG_CHECK !! 472 # Makefile helpers
247 bool "Check for possible ESR exception !! 473 config SPARC64_PCI
248 default n !! 474 bool
249 help !! 475 default y
250 This option enables some checks that !! 476 depends on SPARC64 && PCI
251 in kernel. <<
252 477
253 Say N if you are unsure. !! 478 config SPARC64_PCI_MSI
>> 479 bool
>> 480 default y
>> 481 depends on SPARC64_PCI && PCI_MSI
254 482
255 endmenu 483 endmenu
256 484
257 endmenu !! 485 config COMPAT
>> 486 bool
>> 487 depends on SPARC64
>> 488 default y
>> 489 select HAVE_UID16
>> 490 select ARCH_WANT_OLD_COMPAT_IPC
>> 491 select COMPAT_OLD_SIGACTION
>> 492
>> 493 source "drivers/sbus/char/Kconfig"
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.