1config 64BIT
2 bool "64-bit kernel" if ARCH = "sparc"
3 default ARCH = "sparc64"
4 help
5 SPARC is a family of RISC microprocessors designed and marketed by
6 Sun Microsystems, incorporated. They are very widely found in Sun
7 workstations and clones.
8
9 Say yes to build a 64-bit kernel - formerly known as sparc64
10 Say no to build a 32-bit kernel - formerly known as sparc
11
12config SPARC
13 bool
14 default y
15 select OF
16 select OF_PROMTREE
17 select HAVE_IDE
18 select HAVE_OPROFILE
19 select HAVE_ARCH_KGDB if !SMP || SPARC64
20 select HAVE_ARCH_TRACEHOOK
21 select SYSCTL_EXCEPTION_TRACE
22 select ARCH_WANT_OPTIONAL_GPIOLIB
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
24 select RTC_CLASS
25 select RTC_DRV_M48T59
26 select HAVE_DMA_ATTRS
27 select HAVE_DMA_API_DEBUG
28 select HAVE_ARCH_JUMP_LABEL
29 select HAVE_GENERIC_HARDIRQS
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select USE_GENERIC_SMP_HELPERS if SMP
33 select GENERIC_PCI_IOMAP
34 select HAVE_NMI_WATCHDOG if SPARC64
35 select HAVE_BPF_JIT
36 select HAVE_DEBUG_BUGVERBOSE
37 select GENERIC_SMP_IDLE_THREAD
38 select GENERIC_CMOS_UPDATE
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA
43 select ODD_RT_SIGACTION
44 select OLD_SIGSUSPEND
45
46config SPARC32
47 def_bool !64BIT
48 select GENERIC_ATOMIC64
49 select CLZ_TAB
50 select HAVE_UID16
51 select OLD_SIGACTION
52
53config SPARC64
54 def_bool 64BIT
55 select ARCH_SUPPORTS_MSI
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
60 select HAVE_KRETPROBES
61 select HAVE_KPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
63 select HAVE_MEMBLOCK
64 select HAVE_MEMBLOCK_NODE_MAP
65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_MCOUNT_RECORD
68 select HAVE_SYSCALL_TRACEPOINTS
69 select HAVE_DEBUG_KMEMLEAK
70 select RTC_DRV_CMOS
71 select RTC_DRV_BQ4802
72 select RTC_DRV_SUN4V
73 select RTC_DRV_STARFIRE
74 select HAVE_PERF_EVENTS
75 select PERF_USE_VMALLOC
76 select IRQ_PREFLOW_FASTEOI
77 select ARCH_HAVE_NMI_SAFE_CMPXCHG
78 select HAVE_C_RECORDMCOUNT
79 select NO_BOOTMEM
80
81config ARCH_DEFCONFIG
82 string
83 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
84 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
85
86config IOMMU_HELPER
87 bool
88 default y if SPARC64
89
90config STACKTRACE_SUPPORT
91 bool
92 default y if SPARC64
93
94config LOCKDEP_SUPPORT
95 bool
96 default y if SPARC64
97
98config HAVE_LATENCYTOP_SUPPORT
99 bool
100 default y if SPARC64
101
102config ARCH_HIBERNATION_POSSIBLE
103 def_bool y if SPARC64
104
105config AUDIT_ARCH
106 bool
107 default y
108
109config HAVE_SETUP_PER_CPU_AREA
110 def_bool y if SPARC64
111
112config NEED_PER_CPU_EMBED_FIRST_CHUNK
113 def_bool y if SPARC64
114
115config NEED_PER_CPU_PAGE_FIRST_CHUNK
116 def_bool y if SPARC64
117
118config MMU
119 bool
120 default y
121
122config HIGHMEM
123 bool
124 default y if SPARC32
125
126config ZONE_DMA
127 bool
128 default y if SPARC32
129
130config NEED_DMA_MAP_STATE
131 def_bool y
132
133config NEED_SG_DMA_LENGTH
134 def_bool y
135
136config GENERIC_ISA_DMA
137 bool
138 default y if SPARC32
139
140config ARCH_SUPPORTS_DEBUG_PAGEALLOC
141 def_bool y if SPARC64
142
143source "init/Kconfig"
144
145source "kernel/Kconfig.freezer"
146
147menu "Processor type and features"
148
149config SMP
150 bool "Symmetric multi-processing support"
151 ---help---
152 This enables support for systems with more than one CPU. If you have
153 a system with only one CPU, say N. If you have a system with more
154 than one CPU, say Y.
155
156 If you say N here, the kernel will run on single and multiprocessor
157 machines, but will use only one CPU of a multiprocessor machine. If
158 you say Y here, the kernel will run on many, but not all,
159 singleprocessor machines. On a singleprocessor machine, the kernel
160 will run faster if you say N here.
161
162 People using multiprocessor machines who say Y here should also say
163 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
164 Management" code will be disabled if you say Y here.
165
166 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
167 available at <http://www.tldp.org/docs.html
168
169 If you don't know what to do here, say N.
170
171config NR_CPUS
172 int "Maximum number of CPUs"
173 depends on SMP
174 range 2 32 if SPARC32
175 range 2 1024 if SPARC64
176 default 32 if SPARC32
177 default 64 if SPARC64
178
179source kernel/Kconfig.hz
180
181config RWSEM_GENERIC_SPINLOCK
182 bool
183 default y if SPARC32
184
185config RWSEM_XCHGADD_ALGORITHM
186 bool
187 default y if SPARC64
188
189config GENERIC_HWEIGHT
190 bool
191 default y
192
193config GENERIC_CALIBRATE_DELAY
194 bool
195 default y
196
197config ARCH_MAY_HAVE_PC_FDC
198 bool
199 default y
200
201config EMULATED_CMPXCHG
202 bool
203 default y if SPARC32
204 help
205 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
206 is emulated, and therefore it is not completely atomic.
207
208
209config SPARC32_SMP
210 bool
211 default y
212 depends on SPARC32 && SMP
213
214config SPARC64_SMP
215 bool
216 default y
217 depends on SPARC64 && SMP
218
219config EARLYFB
220 bool "Support for early boot text console"
221 default y
222 depends on SPARC64
223 help
224 Say Y here to enable a faster early framebuffer boot console.
225
226config SECCOMP
227 bool "Enable seccomp to safely compute untrusted bytecode"
228 depends on SPARC64 && PROC_FS
229 default y
230 help
231 This kernel feature is useful for number crunching applications
232 that may need to compute untrusted bytecode during their
233 execution. By using pipes or other transports made available to
234 the process as file descriptors supporting the read/write
235 syscalls, it's possible to isolate those applications in
236 their own address space using seccomp. Once seccomp is
237 enabled via /proc/<pid>/seccomp, it cannot be disabled
238 and the task is only allowed to execute a few safe syscalls
239 defined by each seccomp mode.
240
241 If unsure, say Y. Only embedded should say N here.
242
243config HOTPLUG_CPU
244 bool "Support for hot-pluggable CPUs"
245 depends on SPARC64 && SMP
246 help
247 Say Y here to experiment with turning CPUs off and on. CPUs
248 can be controlled through /sys/devices/system/cpu/cpu#.
249 Say N if you want to disable CPU hotplug.
250
251if SPARC64
252source "drivers/cpufreq/Kconfig"
253endif
254
255config US3_MC
256 tristate "UltraSPARC-III Memory Controller driver"
257 depends on SPARC64
258 default y
259 help
260 This adds a driver for the UltraSPARC-III memory controller.
261 Loading this driver allows exact mnemonic strings to be
262 printed in the event of a memory error, so that the faulty DIMM
263 on the motherboard can be matched to the error.
264
265 If in doubt, say Y, as this information can be very useful.
266
267
268config GENERIC_LOCKBREAK
269 bool
270 default y
271 depends on SPARC64 && SMP && PREEMPT
272
273config NUMA
274 bool "NUMA support"
275 depends on SPARC64 && SMP
276
277config NODES_SHIFT
278 int
279 default "4"
280 depends on NEED_MULTIPLE_NODES
281
282
283
284
285
286
287config NODES_SPAN_OTHER_NODES
288 def_bool y
289 depends on NEED_MULTIPLE_NODES
290
291config ARCH_SELECT_MEMORY_MODEL
292 def_bool y if SPARC64
293
294config ARCH_SPARSEMEM_ENABLE
295 def_bool y if SPARC64
296 select SPARSEMEM_VMEMMAP_ENABLE
297
298config ARCH_SPARSEMEM_DEFAULT
299 def_bool y if SPARC64
300
301source "mm/Kconfig"
302
303if SPARC64
304source "kernel/power/Kconfig"
305endif
306
307config SCHED_SMT
308 bool "SMT (Hyperthreading) scheduler support"
309 depends on SPARC64 && SMP
310 default y
311 help
312 SMT scheduler support improves the CPU scheduler's decision making
313 when dealing with SPARC cpus at a cost of slightly increased overhead
314 in some places. If unsure say N here.
315
316config SCHED_MC
317 bool "Multi-core scheduler support"
318 depends on SPARC64 && SMP
319 default y
320 help
321 Multi-core scheduler support improves the CPU scheduler's decision
322 making when dealing with multi-core CPU chips at a cost of slightly
323 increased overhead in some places. If unsure say N here.
324
325source "kernel/Kconfig.preempt"
326
327config CMDLINE_BOOL
328 bool "Default bootloader kernel arguments"
329 depends on SPARC64
330
331config CMDLINE
332 string "Initial kernel command string"
333 depends on CMDLINE_BOOL
334 default "console=ttyS0,9600 root=/dev/sda1"
335 help
336 Say Y here if you want to be able to pass default arguments to
337 the kernel. This will be overridden by the bootloader, if you
338 use one (such as SILO). This is most useful if you want to boot
339 a kernel from TFTP, and want default options to be available
340 with having them passed on the command line.
341
342 NOTE: This option WILL override the PROM bootargs setting!
343
344config SUN_PM
345 bool
346 default y if SPARC32
347 help
348 Enable power management and CPU standby features on supported
349 SPARC platforms.
350
351config SPARC_LED
352 tristate "Sun4m LED driver"
353 depends on SPARC32
354 help
355 This driver toggles the front-panel LED on sun4m systems
356 in a user-specifiable manner. Its state can be probed
357 by reading /proc/led and its blinking mode can be changed
358 via writes to /proc/led
359
360config SERIAL_CONSOLE
361 bool
362 depends on SPARC32
363 default y
364 ---help---
365 If you say Y here, it will be possible to use a serial port as the
366 system console (the system console is the device which receives all
367 kernel messages and warnings and which allows logins in single user
368 mode). This could be useful if some terminal or printer is connected
369 to that serial port.
370
371 Even if you say Y here, the currently visible virtual console
372 (/dev/tty0) will still be used as the system console by default, but
373 you can alter that using a kernel command line option such as
374 "console=ttyS1". (Try "man bootparam" or see the documentation of
375 your boot loader (silo) about how to pass options to the kernel at
376 boot time.)
377
378 If you don't have a graphics card installed and you say Y here, the
379 kernel will automatically use the first serial line, /dev/ttyS0, as
380 system console.
381
382 If unsure, say N.
383
384config SPARC_LEON
385 bool "Sparc Leon processor family"
386 depends on SPARC32
387 select USB_EHCI_BIG_ENDIAN_MMIO
388 select USB_EHCI_BIG_ENDIAN_DESC
389 ---help---
390 If you say Y here if you are running on a SPARC-LEON processor.
391 The LEON processor is a synthesizable VHDL model of the
392 SPARC-v8 standard. LEON is part of the GRLIB collection of
393 IP cores that are distributed under GPL. GRLIB can be downloaded
394 from www.gaisler.com. You can download a sparc-linux cross-compilation
395 toolchain at www.gaisler.com.
396
397if SPARC_LEON
398menu "U-Boot options"
399
400config UBOOT_LOAD_ADDR
401 hex "uImage Load Address"
402 default 0x40004000
403 ---help---
404 U-Boot kernel load address, the address in physical address space
405 where u-boot will place the Linux kernel before booting it.
406 This address is normally the base address of main memory + 0x4000.
407
408config UBOOT_FLASH_ADDR
409 hex "uImage.o Load Address"
410 default 0x00080000
411 ---help---
412 Optional setting only affecting the uImage.o ELF-image used to
413 download the uImage file to the target using a ELF-loader other than
414 U-Boot. It may for example be used to download an uImage to FLASH with
415 the GRMON utility before even starting u-boot.
416
417config UBOOT_ENTRY_ADDR
418 hex "uImage Entry Address"
419 default 0xf0004000
420 ---help---
421 Do not change this unless you know what you're doing. This is
422 hardcoded by the SPARC32 and LEON port.
423
424 This is the virtual address u-boot jumps to when booting the Linux
425 Kernel.
426
427endmenu
428endif
429
430endmenu
431
432menu "Bus options (PCI etc.)"
433config SBUS
434 bool
435 default y
436
437config SBUSCHAR
438 bool
439 default y
440
441config SUN_LDOMS
442 bool "Sun Logical Domains support"
443 depends on SPARC64
444 help
445 Say Y here is you want to support virtual devices via
446 Logical Domains.
447
448config PCI
449 bool "Support for PCI and PS/2 keyboard/mouse"
450 help
451 Find out whether your system includes a PCI bus. PCI is the name of
452 a bus system, i.e. the way the CPU talks to the other stuff inside
453 your box. If you say Y here, the kernel will include drivers and
454 infrastructure code to support PCI bus devices.
455
456 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
457 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
458 All of these platforms are extremely obscure, so say N if unsure.
459
460config PCI_DOMAINS
461 def_bool PCI if SPARC64
462
463config PCI_SYSCALL
464 def_bool PCI
465
466config PCIC_PCI
467 bool
468 depends on PCI && SPARC32 && !SPARC_LEON
469 default y
470
471config LEON_PCI
472 bool
473 depends on PCI && SPARC_LEON
474 default y
475
476config SPARC_GRPCI1
477 bool "GRPCI Host Bridge Support"
478 depends on LEON_PCI
479 default y
480 help
481 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
482 PCI host controller is typically found in GRLIB SPARC32/LEON
483 systems. The driver has one property (all_pci_errors) controlled
484 from the bootloader that makes the GRPCI to generate interrupts
485 on detected PCI Parity and System errors.
486
487config SPARC_GRPCI2
488 bool "GRPCI2 Host Bridge Support"
489 depends on LEON_PCI
490 default y
491 help
492 Say Y here to include the GRPCI2 Host Bridge Driver.
493
494source "drivers/pci/Kconfig"
495
496source "drivers/pcmcia/Kconfig"
497
498config SUN_OPENPROMFS
499 tristate "Openprom tree appears in /proc/openprom"
500 help
501 If you say Y, the OpenPROM device tree will be available as a
502 virtual file system, which you can mount to /proc/openprom by "mount
503 -t openpromfs none /proc/openprom".
504
505 To compile the /proc/openprom support as a module, choose M here: the
506 module will be called openpromfs.
507
508 Only choose N if you know in advance that you will not need to modify
509 OpenPROM settings on the running system.
510
511
512config SPARC64_PCI
513 bool
514 default y
515 depends on SPARC64 && PCI
516
517endmenu
518
519menu "Executable file formats"
520
521source "fs/Kconfig.binfmt"
522
523config COMPAT
524 bool
525 depends on SPARC64
526 default y
527 select COMPAT_BINFMT_ELF
528 select HAVE_UID16
529 select ARCH_WANT_OLD_COMPAT_IPC
530 select COMPAT_OLD_SIGACTION
531
532config SYSVIPC_COMPAT
533 bool
534 depends on COMPAT && SYSVIPC
535 default y
536
537config KEYS_COMPAT
538 def_bool y if COMPAT && KEYS
539
540endmenu
541
542source "net/Kconfig"
543
544source "drivers/Kconfig"
545
546source "drivers/sbus/char/Kconfig"
547
548source "fs/Kconfig"
549
550source "arch/sparc/Kconfig.debug"
551
552source "security/Kconfig"
553
554source "crypto/Kconfig"
555
556source "lib/Kconfig"
557
