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_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL if SPARC64
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
34 select HAVE_CBPF_JIT if SPARC32
35 select HAVE_EBPF_JIT if SPARC64
36 select HAVE_DEBUG_BUGVERBOSE
37 select GENERIC_SMP_IDLE_THREAD
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_STRNCPY_FROM_USER
40 select GENERIC_STRNLEN_USER
41 select MODULES_USE_ELF_RELA
42 select ODD_RT_SIGACTION
43 select OLD_SIGSUSPEND
44 select ARCH_HAS_SG_CHAIN
45 select CPU_NO_EFFICIENT_FFS
46 select LOCKDEP_SMALL if LOCKDEP
47
48config SPARC32
49 def_bool !64BIT
50 select GENERIC_ATOMIC64
51 select CLZ_TAB
52 select HAVE_UID16
53 select OLD_SIGACTION
54
55config SPARC64
56 def_bool 64BIT
57 select HAVE_FUNCTION_TRACER
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_KRETPROBES
60 select HAVE_KPROBES
61 select HAVE_RCU_TABLE_FREE if SMP
62 select HAVE_MEMBLOCK
63 select HAVE_MEMBLOCK_NODE_MAP
64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_CONTEXT_TRACKING
69 select HAVE_DEBUG_KMEMLEAK
70 select SPARSE_IRQ
71 select RTC_DRV_CMOS
72 select RTC_DRV_BQ4802
73 select RTC_DRV_SUN4V
74 select RTC_DRV_STARFIRE
75 select HAVE_PERF_EVENTS
76 select PERF_USE_VMALLOC
77 select IRQ_PREFLOW_FASTEOI
78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
79 select HAVE_C_RECORDMCOUNT
80 select NO_BOOTMEM
81 select HAVE_ARCH_AUDITSYSCALL
82 select ARCH_SUPPORTS_ATOMIC_RMW
83 select HAVE_NMI
84 select HAVE_REGS_AND_STACK_ACCESS_API
85 select ARCH_USE_QUEUED_RWLOCKS
86 select ARCH_USE_QUEUED_SPINLOCKS
87 select GENERIC_TIME_VSYSCALL
88 select ARCH_CLOCKSOURCE_DATA
89
90config ARCH_DEFCONFIG
91 string
92 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
93 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
94
95config ARCH_PROC_KCORE_TEXT
96 def_bool y
97
98config CPU_BIG_ENDIAN
99 def_bool y
100
101config ARCH_ATU
102 bool
103 default y if SPARC64
104
105config ARCH_DMA_ADDR_T_64BIT
106 bool
107 default y if ARCH_ATU
108
109config IOMMU_HELPER
110 bool
111 default y if SPARC64
112
113config STACKTRACE_SUPPORT
114 bool
115 default y if SPARC64
116
117config LOCKDEP_SUPPORT
118 bool
119 default y if SPARC64
120
121config ARCH_HIBERNATION_POSSIBLE
122 def_bool y if SPARC64
123
124config AUDIT_ARCH
125 bool
126 default y
127
128config HAVE_SETUP_PER_CPU_AREA
129 def_bool y if SPARC64
130
131config NEED_PER_CPU_EMBED_FIRST_CHUNK
132 def_bool y if SPARC64
133
134config NEED_PER_CPU_PAGE_FIRST_CHUNK
135 def_bool y if SPARC64
136
137config MMU
138 bool
139 default y
140
141config HIGHMEM
142 bool
143 default y if SPARC32
144
145config ZONE_DMA
146 bool
147 default y if SPARC32
148
149config NEED_DMA_MAP_STATE
150 def_bool y
151
152config NEED_SG_DMA_LENGTH
153 def_bool y
154
155config GENERIC_ISA_DMA
156 bool
157 default y if SPARC32
158
159config ARCH_SUPPORTS_DEBUG_PAGEALLOC
160 def_bool y if SPARC64
161
162config PGTABLE_LEVELS
163 default 4 if 64BIT
164 default 3
165
166config ARCH_SUPPORTS_UPROBES
167 def_bool y if SPARC64
168
169source "init/Kconfig"
170
171source "kernel/Kconfig.freezer"
172
173menu "Processor type and features"
174
175config SMP
176 bool "Symmetric multi-processing support"
177 ---help---
178 This enables support for systems with more than one CPU. If you have
179 a system with only one CPU, say N. If you have a system with more
180 than one CPU, say Y.
181
182 If you say N here, the kernel will run on uni- and multiprocessor
183 machines, but will use only one CPU of a multiprocessor machine. If
184 you say Y here, the kernel will run on many, but not all,
185 uniprocessor machines. On a uniprocessor machine, the kernel
186 will run faster if you say N here.
187
188 People using multiprocessor machines who say Y here should also say
189 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
190 Management" code will be disabled if you say Y here.
191
192 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
193 available at <http://www.tldp.org/docs.html
194
195 If you don't know what to do here, say N.
196
197config NR_CPUS
198 int "Maximum number of CPUs"
199 depends on SMP
200 range 2 32 if SPARC32
201 range 2 4096 if SPARC64
202 default 32 if SPARC32
203 default 4096 if SPARC64
204
205source kernel/Kconfig.hz
206
207config RWSEM_GENERIC_SPINLOCK
208 bool
209 default y if SPARC32
210
211config RWSEM_XCHGADD_ALGORITHM
212 bool
213 default y if SPARC64
214
215config GENERIC_HWEIGHT
216 bool
217 default y
218
219config GENERIC_CALIBRATE_DELAY
220 bool
221 default y
222
223config ARCH_MAY_HAVE_PC_FDC
224 bool
225 default y
226
227config EMULATED_CMPXCHG
228 bool
229 default y if SPARC32
230 help
231 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
232 is emulated, and therefore it is not completely atomic.
233
234
235config SPARC32_SMP
236 bool
237 default y
238 depends on SPARC32 && SMP
239
240config SPARC64_SMP
241 bool
242 default y
243 depends on SPARC64 && SMP
244
245config EARLYFB
246 bool "Support for early boot text console"
247 default y
248 depends on SPARC64
249 help
250 Say Y here to enable a faster early framebuffer boot console.
251
252config SECCOMP
253 bool "Enable seccomp to safely compute untrusted bytecode"
254 depends on SPARC64 && PROC_FS
255 default y
256 help
257 This kernel feature is useful for number crunching applications
258 that may need to compute untrusted bytecode during their
259 execution. By using pipes or other transports made available to
260 the process as file descriptors supporting the read/write
261 syscalls, it's possible to isolate those applications in
262 their own address space using seccomp. Once seccomp is
263 enabled via /proc/<pid>/seccomp, it cannot be disabled
264 and the task is only allowed to execute a few safe syscalls
265 defined by each seccomp mode.
266
267 If unsure, say Y. Only embedded should say N here.
268
269config HOTPLUG_CPU
270 bool "Support for hot-pluggable CPUs"
271 depends on SPARC64 && SMP
272 help
273 Say Y here to experiment with turning CPUs off and on. CPUs
274 can be controlled through /sys/devices/system/cpu/cpu#.
275 Say N if you want to disable CPU hotplug.
276
277if SPARC64
278source "drivers/cpufreq/Kconfig"
279endif
280
281config US3_MC
282 tristate "UltraSPARC-III Memory Controller driver"
283 depends on SPARC64
284 default y
285 help
286 This adds a driver for the UltraSPARC-III memory controller.
287 Loading this driver allows exact mnemonic strings to be
288 printed in the event of a memory error, so that the faulty DIMM
289 on the motherboard can be matched to the error.
290
291 If in doubt, say Y, as this information can be very useful.
292
293
294config GENERIC_LOCKBREAK
295 bool
296 default y
297 depends on SPARC64 && SMP && PREEMPT
298
299config NUMA
300 bool "NUMA support"
301 depends on SPARC64 && SMP
302
303config NODES_SHIFT
304 int "Maximum NUMA Nodes (as a power of 2)"
305 range 4 5 if SPARC64
306 default "5"
307 depends on NEED_MULTIPLE_NODES
308 help
309 Specify the maximum number of NUMA Nodes available on the target
310 system. Increases memory reserved to accommodate various tables.
311
312
313
314
315
316
317config NODES_SPAN_OTHER_NODES
318 def_bool y
319 depends on NEED_MULTIPLE_NODES
320
321config ARCH_SELECT_MEMORY_MODEL
322 def_bool y if SPARC64
323
324config ARCH_SPARSEMEM_ENABLE
325 def_bool y if SPARC64
326 select SPARSEMEM_VMEMMAP_ENABLE
327
328config ARCH_SPARSEMEM_DEFAULT
329 def_bool y if SPARC64
330
331config FORCE_MAX_ZONEORDER
332 int "Maximum zone order"
333 default "13"
334 help
335 The kernel memory allocator divides physically contiguous memory
336 blocks into "zones", where each zone is a power of two number of
337 pages. This option selects the largest power of two that the kernel
338 keeps in the memory allocator. If you need to allocate very large
339 blocks of physically contiguous memory, then you may need to
340 increase this value.
341
342 This config option is actually maximum order plus one. For example,
343 a value of 13 means that the largest free memory block is 2^12 pages.
344
345source "mm/Kconfig"
346
347if SPARC64
348source "kernel/power/Kconfig"
349endif
350
351config SCHED_SMT
352 bool "SMT (Hyperthreading) scheduler support"
353 depends on SPARC64 && SMP
354 default y
355 help
356 SMT scheduler support improves the CPU scheduler's decision making
357 when dealing with SPARC cpus at a cost of slightly increased overhead
358 in some places. If unsure say N here.
359
360config SCHED_MC
361 bool "Multi-core scheduler support"
362 depends on SPARC64 && SMP
363 default y
364 help
365 Multi-core scheduler support improves the CPU scheduler's decision
366 making when dealing with multi-core CPU chips at a cost of slightly
367 increased overhead in some places. If unsure say N here.
368
369source "kernel/Kconfig.preempt"
370
371config CMDLINE_BOOL
372 bool "Default bootloader kernel arguments"
373 depends on SPARC64
374
375config CMDLINE
376 string "Initial kernel command string"
377 depends on CMDLINE_BOOL
378 default "console=ttyS0,9600 root=/dev/sda1"
379 help
380 Say Y here if you want to be able to pass default arguments to
381 the kernel. This will be overridden by the bootloader, if you
382 use one (such as SILO). This is most useful if you want to boot
383 a kernel from TFTP, and want default options to be available
384 with having them passed on the command line.
385
386 NOTE: This option WILL override the PROM bootargs setting!
387
388config SUN_PM
389 bool
390 default y if SPARC32
391 help
392 Enable power management and CPU standby features on supported
393 SPARC platforms.
394
395config SPARC_LED
396 tristate "Sun4m LED driver"
397 depends on SPARC32
398 help
399 This driver toggles the front-panel LED on sun4m systems
400 in a user-specifiable manner. Its state can be probed
401 by reading /proc/led and its blinking mode can be changed
402 via writes to /proc/led
403
404config SERIAL_CONSOLE
405 bool
406 depends on SPARC32
407 default y
408 ---help---
409 If you say Y here, it will be possible to use a serial port as the
410 system console (the system console is the device which receives all
411 kernel messages and warnings and which allows logins in single user
412 mode). This could be useful if some terminal or printer is connected
413 to that serial port.
414
415 Even if you say Y here, the currently visible virtual console
416 (/dev/tty0) will still be used as the system console by default, but
417 you can alter that using a kernel command line option such as
418 "console=ttyS1". (Try "man bootparam" or see the documentation of
419 your boot loader (silo) about how to pass options to the kernel at
420 boot time.)
421
422 If you don't have a graphics card installed and you say Y here, the
423 kernel will automatically use the first serial line, /dev/ttyS0, as
424 system console.
425
426 If unsure, say N.
427
428config SPARC_LEON
429 bool "Sparc Leon processor family"
430 depends on SPARC32
431 select USB_EHCI_BIG_ENDIAN_MMIO
432 select USB_EHCI_BIG_ENDIAN_DESC
433 select USB_UHCI_BIG_ENDIAN_MMIO
434 select USB_UHCI_BIG_ENDIAN_DESC
435 ---help---
436 If you say Y here if you are running on a SPARC-LEON processor.
437 The LEON processor is a synthesizable VHDL model of the
438 SPARC-v8 standard. LEON is part of the GRLIB collection of
439 IP cores that are distributed under GPL. GRLIB can be downloaded
440 from www.gaisler.com. You can download a sparc-linux cross-compilation
441 toolchain at www.gaisler.com.
442
443if SPARC_LEON
444menu "U-Boot options"
445
446config UBOOT_LOAD_ADDR
447 hex "uImage Load Address"
448 default 0x40004000
449 ---help---
450 U-Boot kernel load address, the address in physical address space
451 where u-boot will place the Linux kernel before booting it.
452 This address is normally the base address of main memory + 0x4000.
453
454config UBOOT_FLASH_ADDR
455 hex "uImage.o Load Address"
456 default 0x00080000
457 ---help---
458 Optional setting only affecting the uImage.o ELF-image used to
459 download the uImage file to the target using a ELF-loader other than
460 U-Boot. It may for example be used to download an uImage to FLASH with
461 the GRMON utility before even starting u-boot.
462
463config UBOOT_ENTRY_ADDR
464 hex "uImage Entry Address"
465 default 0xf0004000
466 ---help---
467 Do not change this unless you know what you're doing. This is
468 hardcoded by the SPARC32 and LEON port.
469
470 This is the virtual address u-boot jumps to when booting the Linux
471 Kernel.
472
473endmenu
474endif
475
476endmenu
477
478menu "Bus options (PCI etc.)"
479config SBUS
480 bool
481 default y
482
483config SBUSCHAR
484 bool
485 default y
486
487config SUN_LDOMS
488 bool "Sun Logical Domains support"
489 depends on SPARC64
490 help
491 Say Y here is you want to support virtual devices via
492 Logical Domains.
493
494config PCI
495 bool "Support for PCI and PS/2 keyboard/mouse"
496 help
497 Find out whether your system includes a PCI bus. PCI is the name of
498 a bus system, i.e. the way the CPU talks to the other stuff inside
499 your box. If you say Y here, the kernel will include drivers and
500 infrastructure code to support PCI bus devices.
501
502 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
503 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
504 All of these platforms are extremely obscure, so say N if unsure.
505
506config PCI_DOMAINS
507 def_bool PCI if SPARC64
508
509config PCI_SYSCALL
510 def_bool PCI
511
512config PCIC_PCI
513 bool
514 depends on PCI && SPARC32 && !SPARC_LEON
515 default y
516
517config LEON_PCI
518 bool
519 depends on PCI && SPARC_LEON
520 default y
521
522config SPARC_GRPCI1
523 bool "GRPCI Host Bridge Support"
524 depends on LEON_PCI
525 default y
526 help
527 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
528 PCI host controller is typically found in GRLIB SPARC32/LEON
529 systems. The driver has one property (all_pci_errors) controlled
530 from the bootloader that makes the GRPCI to generate interrupts
531 on detected PCI Parity and System errors.
532
533config SPARC_GRPCI2
534 bool "GRPCI2 Host Bridge Support"
535 depends on LEON_PCI
536 default y
537 help
538 Say Y here to include the GRPCI2 Host Bridge Driver.
539
540source "drivers/pci/Kconfig"
541
542source "drivers/pcmcia/Kconfig"
543
544config SUN_OPENPROMFS
545 tristate "Openprom tree appears in /proc/openprom"
546 help
547 If you say Y, the OpenPROM device tree will be available as a
548 virtual file system, which you can mount to /proc/openprom by "mount
549 -t openpromfs none /proc/openprom".
550
551 To compile the /proc/openprom support as a module, choose M here: the
552 module will be called openpromfs.
553
554 Only choose N if you know in advance that you will not need to modify
555 OpenPROM settings on the running system.
556
557
558config SPARC64_PCI
559 bool
560 default y
561 depends on SPARC64 && PCI
562
563config SPARC64_PCI_MSI
564 bool
565 default y
566 depends on SPARC64_PCI && PCI_MSI
567
568endmenu
569
570menu "Executable file formats"
571
572source "fs/Kconfig.binfmt"
573
574config COMPAT
575 bool
576 depends on SPARC64
577 default y
578 select COMPAT_BINFMT_ELF
579 select HAVE_UID16
580 select ARCH_WANT_OLD_COMPAT_IPC
581 select COMPAT_OLD_SIGACTION
582
583config SYSVIPC_COMPAT
584 bool
585 depends on COMPAT && SYSVIPC
586 default y
587
588endmenu
589
590source "net/Kconfig"
591
592source "drivers/Kconfig"
593
594source "drivers/sbus/char/Kconfig"
595
596source "fs/Kconfig"
597
598source "arch/sparc/Kconfig.debug"
599
600source "security/Kconfig"
601
602source "crypto/Kconfig"
603
604source "lib/Kconfig"
605
