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 ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_MIGHT_HAVE_PC_SERIO
17 select OF
18 select OF_PROMTREE
19 select HAVE_IDE
20 select HAVE_OPROFILE
21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select HAVE_ARCH_TRACEHOOK
23 select HAVE_EXIT_THREAD
24 select SYSCTL_EXCEPTION_TRACE
25 select RTC_CLASS
26 select RTC_DRV_M48T59
27 select RTC_SYSTOHC
28 select HAVE_ARCH_JUMP_LABEL if SPARC64
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
33 select HAVE_CBPF_JIT if SPARC32
34 select HAVE_EBPF_JIT if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
40 select MODULES_USE_ELF_RELA
41 select ODD_RT_SIGACTION
42 select OLD_SIGSUSPEND
43 select ARCH_HAS_SG_CHAIN
44 select CPU_NO_EFFICIENT_FFS
45 select LOCKDEP_SMALL if LOCKDEP
46 select NEED_DMA_MAP_STATE
47 select NEED_SG_DMA_LENGTH
48
49config SPARC32
50 def_bool !64BIT
51 select GENERIC_ATOMIC64
52 select CLZ_TAB
53 select HAVE_UID16
54 select OLD_SIGACTION
55
56config SPARC64
57 def_bool 64BIT
58 select HAVE_FUNCTION_TRACER
59 select HAVE_FUNCTION_GRAPH_TRACER
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_CONTEXT_TRACKING
70 select HAVE_DEBUG_KMEMLEAK
71 select IOMMU_HELPER
72 select SPARSE_IRQ
73 select RTC_DRV_CMOS
74 select RTC_DRV_BQ4802
75 select RTC_DRV_SUN4V
76 select RTC_DRV_STARFIRE
77 select HAVE_PERF_EVENTS
78 select PERF_USE_VMALLOC
79 select IRQ_PREFLOW_FASTEOI
80 select ARCH_HAVE_NMI_SAFE_CMPXCHG
81 select HAVE_C_RECORDMCOUNT
82 select NO_BOOTMEM
83 select HAVE_ARCH_AUDITSYSCALL
84 select ARCH_SUPPORTS_ATOMIC_RMW
85 select HAVE_NMI
86 select HAVE_REGS_AND_STACK_ACCESS_API
87 select ARCH_USE_QUEUED_RWLOCKS
88 select ARCH_USE_QUEUED_SPINLOCKS
89 select GENERIC_TIME_VSYSCALL
90 select ARCH_CLOCKSOURCE_DATA
91 select ARCH_HAS_PTE_SPECIAL
92
93config ARCH_DEFCONFIG
94 string
95 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
96 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
97
98config ARCH_PROC_KCORE_TEXT
99 def_bool y
100
101config CPU_BIG_ENDIAN
102 def_bool y
103
104config ARCH_ATU
105 bool
106 default y if SPARC64
107
108config STACKTRACE_SUPPORT
109 bool
110 default y if SPARC64
111
112config LOCKDEP_SUPPORT
113 bool
114 default y if SPARC64
115
116config ARCH_HIBERNATION_POSSIBLE
117 def_bool y if SPARC64
118
119config AUDIT_ARCH
120 bool
121 default y
122
123config HAVE_SETUP_PER_CPU_AREA
124 def_bool y if SPARC64
125
126config NEED_PER_CPU_EMBED_FIRST_CHUNK
127 def_bool y if SPARC64
128
129config NEED_PER_CPU_PAGE_FIRST_CHUNK
130 def_bool y if SPARC64
131
132config MMU
133 bool
134 default y
135
136config HIGHMEM
137 bool
138 default y if SPARC32
139
140config ZONE_DMA
141 bool
142 default y if SPARC32
143
144config GENERIC_ISA_DMA
145 bool
146 default y if SPARC32
147
148config ARCH_SUPPORTS_DEBUG_PAGEALLOC
149 def_bool y if SPARC64
150
151config PGTABLE_LEVELS
152 default 4 if 64BIT
153 default 3
154
155config ARCH_SUPPORTS_UPROBES
156 def_bool y if SPARC64
157
158source "init/Kconfig"
159
160source "kernel/Kconfig.freezer"
161
162menu "Processor type and features"
163
164config SMP
165 bool "Symmetric multi-processing support"
166 ---help---
167 This enables support for systems with more than one CPU. If you have
168 a system with only one CPU, say N. If you have a system with more
169 than one CPU, say Y.
170
171 If you say N here, the kernel will run on uni- and multiprocessor
172 machines, but will use only one CPU of a multiprocessor machine. If
173 you say Y here, the kernel will run on many, but not all,
174 uniprocessor machines. On a uniprocessor machine, the kernel
175 will run faster if you say N here.
176
177 People using multiprocessor machines who say Y here should also say
178 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
179 Management" code will be disabled if you say Y here.
180
181 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
182 available at <http://www.tldp.org/docs.html
183
184 If you don't know what to do here, say N.
185
186config NR_CPUS
187 int "Maximum number of CPUs"
188 depends on SMP
189 range 2 32 if SPARC32
190 range 2 4096 if SPARC64
191 default 32 if SPARC32
192 default 4096 if SPARC64
193
194source kernel/Kconfig.hz
195
196config RWSEM_GENERIC_SPINLOCK
197 bool
198 default y if SPARC32
199
200config RWSEM_XCHGADD_ALGORITHM
201 bool
202 default y if SPARC64
203
204config GENERIC_HWEIGHT
205 bool
206 default y
207
208config GENERIC_CALIBRATE_DELAY
209 bool
210 default y
211
212config ARCH_MAY_HAVE_PC_FDC
213 bool
214 default y
215
216config EMULATED_CMPXCHG
217 bool
218 default y if SPARC32
219 help
220 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
221 is emulated, and therefore it is not completely atomic.
222
223
224config SPARC32_SMP
225 bool
226 default y
227 depends on SPARC32 && SMP
228
229config SPARC64_SMP
230 bool
231 default y
232 depends on SPARC64 && SMP
233
234config EARLYFB
235 bool "Support for early boot text console"
236 default y
237 depends on SPARC64
238 help
239 Say Y here to enable a faster early framebuffer boot console.
240
241config SECCOMP
242 bool "Enable seccomp to safely compute untrusted bytecode"
243 depends on SPARC64 && PROC_FS
244 default y
245 help
246 This kernel feature is useful for number crunching applications
247 that may need to compute untrusted bytecode during their
248 execution. By using pipes or other transports made available to
249 the process as file descriptors supporting the read/write
250 syscalls, it's possible to isolate those applications in
251 their own address space using seccomp. Once seccomp is
252 enabled via /proc/<pid>/seccomp, it cannot be disabled
253 and the task is only allowed to execute a few safe syscalls
254 defined by each seccomp mode.
255
256 If unsure, say Y. Only embedded should say N here.
257
258config HOTPLUG_CPU
259 bool "Support for hot-pluggable CPUs"
260 depends on SPARC64 && SMP
261 help
262 Say Y here to experiment with turning CPUs off and on. CPUs
263 can be controlled through /sys/devices/system/cpu/cpu#.
264 Say N if you want to disable CPU hotplug.
265
266if SPARC64
267source "drivers/cpufreq/Kconfig"
268endif
269
270config US3_MC
271 tristate "UltraSPARC-III Memory Controller driver"
272 depends on SPARC64
273 default y
274 help
275 This adds a driver for the UltraSPARC-III memory controller.
276 Loading this driver allows exact mnemonic strings to be
277 printed in the event of a memory error, so that the faulty DIMM
278 on the motherboard can be matched to the error.
279
280 If in doubt, say Y, as this information can be very useful.
281
282
283config GENERIC_LOCKBREAK
284 bool
285 default y
286 depends on SPARC64 && SMP && PREEMPT
287
288config NUMA
289 bool "NUMA support"
290 depends on SPARC64 && SMP
291
292config NODES_SHIFT
293 int "Maximum NUMA Nodes (as a power of 2)"
294 range 4 5 if SPARC64
295 default "5"
296 depends on NEED_MULTIPLE_NODES
297 help
298 Specify the maximum number of NUMA Nodes available on the target
299 system. Increases memory reserved to accommodate various tables.
300
301
302
303
304
305
306config NODES_SPAN_OTHER_NODES
307 def_bool y
308 depends on NEED_MULTIPLE_NODES
309
310config ARCH_SELECT_MEMORY_MODEL
311 def_bool y if SPARC64
312
313config ARCH_SPARSEMEM_ENABLE
314 def_bool y if SPARC64
315 select SPARSEMEM_VMEMMAP_ENABLE
316
317config ARCH_SPARSEMEM_DEFAULT
318 def_bool y if SPARC64
319
320config FORCE_MAX_ZONEORDER
321 int "Maximum zone order"
322 default "13"
323 help
324 The kernel memory allocator divides physically contiguous memory
325 blocks into "zones", where each zone is a power of two number of
326 pages. This option selects the largest power of two that the kernel
327 keeps in the memory allocator. If you need to allocate very large
328 blocks of physically contiguous memory, then you may need to
329 increase this value.
330
331 This config option is actually maximum order plus one. For example,
332 a value of 13 means that the largest free memory block is 2^12 pages.
333
334source "mm/Kconfig"
335
336if SPARC64
337source "kernel/power/Kconfig"
338endif
339
340config SCHED_SMT
341 bool "SMT (Hyperthreading) scheduler support"
342 depends on SPARC64 && SMP
343 default y
344 help
345 SMT scheduler support improves the CPU scheduler's decision making
346 when dealing with SPARC cpus at a cost of slightly increased overhead
347 in some places. If unsure say N here.
348
349config SCHED_MC
350 bool "Multi-core scheduler support"
351 depends on SPARC64 && SMP
352 default y
353 help
354 Multi-core scheduler support improves the CPU scheduler's decision
355 making when dealing with multi-core CPU chips at a cost of slightly
356 increased overhead in some places. If unsure say N here.
357
358source "kernel/Kconfig.preempt"
359
360config CMDLINE_BOOL
361 bool "Default bootloader kernel arguments"
362 depends on SPARC64
363
364config CMDLINE
365 string "Initial kernel command string"
366 depends on CMDLINE_BOOL
367 default "console=ttyS0,9600 root=/dev/sda1"
368 help
369 Say Y here if you want to be able to pass default arguments to
370 the kernel. This will be overridden by the bootloader, if you
371 use one (such as SILO). This is most useful if you want to boot
372 a kernel from TFTP, and want default options to be available
373 with having them passed on the command line.
374
375 NOTE: This option WILL override the PROM bootargs setting!
376
377config SUN_PM
378 bool
379 default y if SPARC32
380 help
381 Enable power management and CPU standby features on supported
382 SPARC platforms.
383
384config SPARC_LED
385 tristate "Sun4m LED driver"
386 depends on SPARC32
387 help
388 This driver toggles the front-panel LED on sun4m systems
389 in a user-specifiable manner. Its state can be probed
390 by reading /proc/led and its blinking mode can be changed
391 via writes to /proc/led
392
393config SERIAL_CONSOLE
394 bool
395 depends on SPARC32
396 default y
397 ---help---
398 If you say Y here, it will be possible to use a serial port as the
399 system console (the system console is the device which receives all
400 kernel messages and warnings and which allows logins in single user
401 mode). This could be useful if some terminal or printer is connected
402 to that serial port.
403
404 Even if you say Y here, the currently visible virtual console
405 (/dev/tty0) will still be used as the system console by default, but
406 you can alter that using a kernel command line option such as
407 "console=ttyS1". (Try "man bootparam" or see the documentation of
408 your boot loader (silo) about how to pass options to the kernel at
409 boot time.)
410
411 If you don't have a graphics card installed and you say Y here, the
412 kernel will automatically use the first serial line, /dev/ttyS0, as
413 system console.
414
415 If unsure, say N.
416
417config SPARC_LEON
418 bool "Sparc Leon processor family"
419 depends on SPARC32
420 select USB_EHCI_BIG_ENDIAN_MMIO
421 select USB_EHCI_BIG_ENDIAN_DESC
422 select USB_UHCI_BIG_ENDIAN_MMIO
423 select USB_UHCI_BIG_ENDIAN_DESC
424 ---help---
425 If you say Y here if you are running on a SPARC-LEON processor.
426 The LEON processor is a synthesizable VHDL model of the
427 SPARC-v8 standard. LEON is part of the GRLIB collection of
428 IP cores that are distributed under GPL. GRLIB can be downloaded
429 from www.gaisler.com. You can download a sparc-linux cross-compilation
430 toolchain at www.gaisler.com.
431
432if SPARC_LEON
433menu "U-Boot options"
434
435config UBOOT_LOAD_ADDR
436 hex "uImage Load Address"
437 default 0x40004000
438 ---help---
439 U-Boot kernel load address, the address in physical address space
440 where u-boot will place the Linux kernel before booting it.
441 This address is normally the base address of main memory + 0x4000.
442
443config UBOOT_FLASH_ADDR
444 hex "uImage.o Load Address"
445 default 0x00080000
446 ---help---
447 Optional setting only affecting the uImage.o ELF-image used to
448 download the uImage file to the target using a ELF-loader other than
449 U-Boot. It may for example be used to download an uImage to FLASH with
450 the GRMON utility before even starting u-boot.
451
452config UBOOT_ENTRY_ADDR
453 hex "uImage Entry Address"
454 default 0xf0004000
455 ---help---
456 Do not change this unless you know what you're doing. This is
457 hardcoded by the SPARC32 and LEON port.
458
459 This is the virtual address u-boot jumps to when booting the Linux
460 Kernel.
461
462endmenu
463endif
464
465endmenu
466
467menu "Bus options (PCI etc.)"
468config SBUS
469 bool
470 default y
471
472config SBUSCHAR
473 bool
474 default y
475
476config SUN_LDOMS
477 bool "Sun Logical Domains support"
478 depends on SPARC64
479 help
480 Say Y here is you want to support virtual devices via
481 Logical Domains.
482
483config PCI
484 bool "Support for PCI and PS/2 keyboard/mouse"
485 help
486 Find out whether your system includes a PCI bus. PCI is the name of
487 a bus system, i.e. the way the CPU talks to the other stuff inside
488 your box. If you say Y here, the kernel will include drivers and
489 infrastructure code to support PCI bus devices.
490
491 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
492 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
493 All of these platforms are extremely obscure, so say N if unsure.
494
495config PCI_DOMAINS
496 def_bool PCI if SPARC64
497
498config PCI_SYSCALL
499 def_bool PCI
500
501config PCIC_PCI
502 bool
503 depends on PCI && SPARC32 && !SPARC_LEON
504 default y
505
506config LEON_PCI
507 bool
508 depends on PCI && SPARC_LEON
509 default y
510
511config SPARC_GRPCI1
512 bool "GRPCI Host Bridge Support"
513 depends on LEON_PCI
514 default y
515 help
516 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
517 PCI host controller is typically found in GRLIB SPARC32/LEON
518 systems. The driver has one property (all_pci_errors) controlled
519 from the bootloader that makes the GRPCI to generate interrupts
520 on detected PCI Parity and System errors.
521
522config SPARC_GRPCI2
523 bool "GRPCI2 Host Bridge Support"
524 depends on LEON_PCI
525 default y
526 help
527 Say Y here to include the GRPCI2 Host Bridge Driver.
528
529source "drivers/pci/Kconfig"
530
531source "drivers/pcmcia/Kconfig"
532
533config SUN_OPENPROMFS
534 tristate "Openprom tree appears in /proc/openprom"
535 help
536 If you say Y, the OpenPROM device tree will be available as a
537 virtual file system, which you can mount to /proc/openprom by "mount
538 -t openpromfs none /proc/openprom".
539
540 To compile the /proc/openprom support as a module, choose M here: the
541 module will be called openpromfs.
542
543 Only choose N if you know in advance that you will not need to modify
544 OpenPROM settings on the running system.
545
546
547config SPARC64_PCI
548 bool
549 default y
550 depends on SPARC64 && PCI
551
552config SPARC64_PCI_MSI
553 bool
554 default y
555 depends on SPARC64_PCI && PCI_MSI
556
557endmenu
558
559menu "Executable file formats"
560
561source "fs/Kconfig.binfmt"
562
563config COMPAT
564 bool
565 depends on SPARC64
566 default y
567 select COMPAT_BINFMT_ELF
568 select HAVE_UID16
569 select ARCH_WANT_OLD_COMPAT_IPC
570 select COMPAT_OLD_SIGACTION
571
572config SYSVIPC_COMPAT
573 bool
574 depends on COMPAT && SYSVIPC
575 default y
576
577endmenu
578
579source "net/Kconfig"
580
581source "drivers/Kconfig"
582
583source "drivers/sbus/char/Kconfig"
584
585source "fs/Kconfig"
586
587source "arch/sparc/Kconfig.debug"
588
589source "security/Kconfig"
590
591source "crypto/Kconfig"
592
593source "lib/Kconfig"
594
