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 SYSCTL_EXCEPTION_TRACE
24	select ARCH_WANT_OPTIONAL_GPIOLIB
25	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
26	select RTC_CLASS
27	select RTC_DRV_M48T59
28	select HAVE_DMA_ATTRS
29	select HAVE_DMA_API_DEBUG
30	select HAVE_ARCH_JUMP_LABEL if SPARC64
31	select GENERIC_IRQ_SHOW
32	select ARCH_WANT_IPC_PARSE_VERSION
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	select ARCH_HAS_SG_CHAIN
46
47config SPARC32
48	def_bool !64BIT
49	select GENERIC_ATOMIC64
50	select CLZ_TAB
51	select HAVE_UID16
52	select OLD_SIGACTION
53
54config SPARC64
55	def_bool 64BIT
56	select HAVE_FUNCTION_TRACER
57	select HAVE_FUNCTION_GRAPH_TRACER
58	select HAVE_FUNCTION_GRAPH_FP_TEST
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
84config ARCH_DEFCONFIG
85	string
86	default "arch/sparc/configs/sparc32_defconfig" if SPARC32
87	default "arch/sparc/configs/sparc64_defconfig" if SPARC64
88
89config ARCH_PROC_KCORE_TEXT
90	def_bool y
91
92config IOMMU_HELPER
93	bool
94	default y if SPARC64
95
96config STACKTRACE_SUPPORT
97	bool
98	default y if SPARC64
99
100config LOCKDEP_SUPPORT
101	bool
102	default y if SPARC64
103
104config HAVE_LATENCYTOP_SUPPORT
105	bool
106	default y if SPARC64
107
108config ARCH_HIBERNATION_POSSIBLE
109	def_bool y if SPARC64
110
111config AUDIT_ARCH
112	bool
113	default y
114
115config HAVE_SETUP_PER_CPU_AREA
116	def_bool y if SPARC64
117
118config NEED_PER_CPU_EMBED_FIRST_CHUNK
119	def_bool y if SPARC64
120
121config NEED_PER_CPU_PAGE_FIRST_CHUNK
122	def_bool y if SPARC64
123
124config MMU
125	bool
126	default y
127
128config HIGHMEM
129	bool
130	default y if SPARC32
131
132config ZONE_DMA
133	bool
134	default y if SPARC32
135
136config NEED_DMA_MAP_STATE
137	def_bool y
138
139config NEED_SG_DMA_LENGTH
140	def_bool y
141
142config GENERIC_ISA_DMA
143	bool
144	default y if SPARC32
145
146config ARCH_SUPPORTS_DEBUG_PAGEALLOC
147	def_bool y if SPARC64
148
149config PGTABLE_LEVELS
150	default 4 if 64BIT
151	default 3
152
153source "init/Kconfig"
154
155source "kernel/Kconfig.freezer"
156
157menu "Processor type and features"
158
159config SMP
160	bool "Symmetric multi-processing support"
161	---help---
162	  This enables support for systems with more than one CPU. If you have
163	  a system with only one CPU, say N. If you have a system with more
164	  than one CPU, say Y.
165
166	  If you say N here, the kernel will run on uni- and multiprocessor
167	  machines, but will use only one CPU of a multiprocessor machine. If
168	  you say Y here, the kernel will run on many, but not all,
169	  uniprocessor machines. On a uniprocessor machine, the kernel
170	  will run faster if you say N here.
171
172	  People using multiprocessor machines who say Y here should also say
173	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
174	  Management" code will be disabled if you say Y here.
175
176	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
177	  available at <http://www.tldp.org/docs.html#howto>.
178
179	  If you don't know what to do here, say N.
180
181config NR_CPUS
182	int "Maximum number of CPUs"
183	depends on SMP
184	range 2 32 if SPARC32
185	range 2 1024 if SPARC64
186	default 32 if SPARC32
187	default 64 if SPARC64
188
189source kernel/Kconfig.hz
190
191config RWSEM_GENERIC_SPINLOCK
192	bool
193	default y if SPARC32
194
195config RWSEM_XCHGADD_ALGORITHM
196	bool
197	default y if SPARC64
198
199config GENERIC_HWEIGHT
200	bool
201	default y
202
203config GENERIC_CALIBRATE_DELAY
204	bool
205	default y
206
207config ARCH_MAY_HAVE_PC_FDC
208	bool
209	default y
210
211config EMULATED_CMPXCHG
212	bool
213	default y if SPARC32
214	help
215	  Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
216	  is emulated, and therefore it is not completely atomic.
217
218# Makefile helpers
219config SPARC32_SMP
220	bool
221	default y
222	depends on SPARC32 && SMP
223
224config SPARC64_SMP
225	bool
226	default y
227	depends on SPARC64 && SMP
228
229config EARLYFB
230	bool "Support for early boot text console"
231	default y
232	depends on SPARC64
233	help
234	  Say Y here to enable a faster early framebuffer boot console.
235
236config SECCOMP
237	bool "Enable seccomp to safely compute untrusted bytecode"
238	depends on SPARC64 && PROC_FS
239	default y
240	help
241	  This kernel feature is useful for number crunching applications
242	  that may need to compute untrusted bytecode during their
243	  execution. By using pipes or other transports made available to
244	  the process as file descriptors supporting the read/write
245	  syscalls, it's possible to isolate those applications in
246	  their own address space using seccomp. Once seccomp is
247	  enabled via /proc/<pid>/seccomp, it cannot be disabled
248	  and the task is only allowed to execute a few safe syscalls
249	  defined by each seccomp mode.
250
251	  If unsure, say Y. Only embedded should say N here.
252
253config HOTPLUG_CPU
254	bool "Support for hot-pluggable CPUs"
255	depends on SPARC64 && SMP
256	help
257	  Say Y here to experiment with turning CPUs off and on.  CPUs
258	  can be controlled through /sys/devices/system/cpu/cpu#.
259	  Say N if you want to disable CPU hotplug.
260
261if SPARC64
262source "drivers/cpufreq/Kconfig"
263endif
264
265config US3_MC
266	tristate "UltraSPARC-III Memory Controller driver"
267	depends on SPARC64
268	default y
269	help
270	  This adds a driver for the UltraSPARC-III memory controller.
271	  Loading this driver allows exact mnemonic strings to be
272	  printed in the event of a memory error, so that the faulty DIMM
273	  on the motherboard can be matched to the error.
274
275	  If in doubt, say Y, as this information can be very useful.
276
277# Global things across all Sun machines.
278config GENERIC_LOCKBREAK
279	bool
280	default y
281	depends on SPARC64 && SMP && PREEMPT
282
283config NUMA
284	bool "NUMA support"
285	depends on SPARC64 && SMP
286
287config NODES_SHIFT
288	int
289	default "4"
290	depends on NEED_MULTIPLE_NODES
291
292# Some NUMA nodes have memory ranges that span
293# other nodes.  Even though a pfn is valid and
294# between a node's start and end pfns, it may not
295# reside on that node.  See memmap_init_zone()
296# for details.
297config NODES_SPAN_OTHER_NODES
298	def_bool y
299	depends on NEED_MULTIPLE_NODES
300
301config ARCH_SELECT_MEMORY_MODEL
302	def_bool y if SPARC64
303
304config ARCH_SPARSEMEM_ENABLE
305	def_bool y if SPARC64
306	select SPARSEMEM_VMEMMAP_ENABLE
307
308config ARCH_SPARSEMEM_DEFAULT
309	def_bool y if SPARC64
310
311source "mm/Kconfig"
312
313if SPARC64
314source "kernel/power/Kconfig"
315endif
316
317config SCHED_SMT
318	bool "SMT (Hyperthreading) scheduler support"
319	depends on SPARC64 && SMP
320	default y
321	help
322	  SMT scheduler support improves the CPU scheduler's decision making
323	  when dealing with SPARC cpus at a cost of slightly increased overhead
324	  in some places. If unsure say N here.
325
326config SCHED_MC
327	bool "Multi-core scheduler support"
328	depends on SPARC64 && SMP
329	default y
330	help
331	  Multi-core scheduler support improves the CPU scheduler's decision
332	  making when dealing with multi-core CPU chips at a cost of slightly
333	  increased overhead in some places. If unsure say N here.
334
335source "kernel/Kconfig.preempt"
336
337config CMDLINE_BOOL
338	bool "Default bootloader kernel arguments"
339	depends on SPARC64
340
341config CMDLINE
342	string "Initial kernel command string"
343	depends on CMDLINE_BOOL
344	default "console=ttyS0,9600 root=/dev/sda1"
345	help
346	  Say Y here if you want to be able to pass default arguments to
347	  the kernel. This will be overridden by the bootloader, if you
348	  use one (such as SILO). This is most useful if you want to boot
349	  a kernel from TFTP, and want default options to be available
350	  with having them passed on the command line.
351
352	  NOTE: This option WILL override the PROM bootargs setting!
353
354config SUN_PM
355	bool
356	default y if SPARC32
357	help
358	  Enable power management and CPU standby features on supported
359	  SPARC platforms.
360
361config SPARC_LED
362	tristate "Sun4m LED driver"
363	depends on SPARC32
364	help
365	  This driver toggles the front-panel LED on sun4m systems
366	  in a user-specifiable manner.  Its state can be probed
367	  by reading /proc/led and its blinking mode can be changed
368	  via writes to /proc/led
369
370config SERIAL_CONSOLE
371	bool
372	depends on SPARC32
373	default y
374	---help---
375	  If you say Y here, it will be possible to use a serial port as the
376	  system console (the system console is the device which receives all
377	  kernel messages and warnings and which allows logins in single user
378	  mode). This could be useful if some terminal or printer is connected
379	  to that serial port.
380
381	  Even if you say Y here, the currently visible virtual console
382	  (/dev/tty0) will still be used as the system console by default, but
383	  you can alter that using a kernel command line option such as
384	  "console=ttyS1". (Try "man bootparam" or see the documentation of
385	  your boot loader (silo) about how to pass options to the kernel at
386	  boot time.)
387
388	  If you don't have a graphics card installed and you say Y here, the
389	  kernel will automatically use the first serial line, /dev/ttyS0, as
390	  system console.
391
392	  If unsure, say N.
393
394config SPARC_LEON
395	bool "Sparc Leon processor family"
396	depends on SPARC32
397	select USB_EHCI_BIG_ENDIAN_MMIO
398	select USB_EHCI_BIG_ENDIAN_DESC
399	---help---
400	  If you say Y here if you are running on a SPARC-LEON processor.
401	  The LEON processor is a synthesizable VHDL model of the
402	  SPARC-v8 standard. LEON is  part of the GRLIB collection of
403	  IP cores that are distributed under GPL. GRLIB can be downloaded
404	  from www.gaisler.com. You can download a sparc-linux cross-compilation
405	  toolchain at www.gaisler.com.
406
407if SPARC_LEON
408menu "U-Boot options"
409
410config UBOOT_LOAD_ADDR
411	hex "uImage Load Address"
412	default 0x40004000
413	---help---
414	 U-Boot kernel load address, the address in physical address space
415	 where u-boot will place the Linux kernel before booting it.
416	 This address is normally the base address of main memory + 0x4000.
417
418config UBOOT_FLASH_ADDR
419	hex "uImage.o Load Address"
420	default 0x00080000
421	---help---
422	 Optional setting only affecting the uImage.o ELF-image used to
423	 download the uImage file to the target using a ELF-loader other than
424	 U-Boot. It may for example be used to download an uImage to FLASH with
425	 the GRMON utility before even starting u-boot.
426
427config UBOOT_ENTRY_ADDR
428	hex "uImage Entry Address"
429	default 0xf0004000
430	---help---
431	 Do not change this unless you know what you're doing. This is
432	 hardcoded by the SPARC32 and LEON port.
433
434	 This is the virtual address u-boot jumps to when booting the Linux
435	 Kernel.
436
437endmenu
438endif
439
440endmenu
441
442menu "Bus options (PCI etc.)"
443config SBUS
444	bool
445	default y
446
447config SBUSCHAR
448	bool
449	default y
450
451config SUN_LDOMS
452	bool "Sun Logical Domains support"
453	depends on SPARC64
454	help
455	  Say Y here is you want to support virtual devices via
456	  Logical Domains.
457
458config PCI
459	bool "Support for PCI and PS/2 keyboard/mouse"
460	help
461	  Find out whether your system includes a PCI bus. PCI is the name of
462	  a bus system, i.e. the way the CPU talks to the other stuff inside
463	  your box.  If you say Y here, the kernel will include drivers and
464	  infrastructure code to support PCI bus devices.
465
466	  CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
467	  CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
468	  All of these platforms are extremely obscure, so say N if unsure.
469
470config PCI_DOMAINS
471	def_bool PCI if SPARC64
472
473config PCI_SYSCALL
474	def_bool PCI
475
476config PCIC_PCI
477	bool
478	depends on PCI && SPARC32 && !SPARC_LEON
479	default y
480
481config LEON_PCI
482	bool
483	depends on PCI && SPARC_LEON
484	default y
485
486config SPARC_GRPCI1
487	bool "GRPCI Host Bridge Support"
488	depends on LEON_PCI
489	default y
490	help
491	  Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
492	  PCI host controller is typically found in GRLIB SPARC32/LEON
493	  systems. The driver has one property (all_pci_errors) controlled
494	  from the bootloader that makes the GRPCI to generate interrupts
495	  on detected PCI Parity and System errors.
496
497config SPARC_GRPCI2
498	bool "GRPCI2 Host Bridge Support"
499	depends on LEON_PCI
500	default y
501	help
502	  Say Y here to include the GRPCI2 Host Bridge Driver.
503
504source "drivers/pci/Kconfig"
505
506source "drivers/pcmcia/Kconfig"
507
508config SUN_OPENPROMFS
509	tristate "Openprom tree appears in /proc/openprom"
510	help
511	  If you say Y, the OpenPROM device tree will be available as a
512	  virtual file system, which you can mount to /proc/openprom by "mount
513	  -t openpromfs none /proc/openprom".
514
515	  To compile the /proc/openprom support as a module, choose M here: the
516	  module will be called openpromfs.
517
518	  Only choose N if you know in advance that you will not need to modify
519	  OpenPROM settings on the running system.
520
521# Makefile helpers
522config SPARC64_PCI
523	bool
524	default y
525	depends on SPARC64 && PCI
526
527config SPARC64_PCI_MSI
528	bool
529	default y
530	depends on SPARC64_PCI && PCI_MSI
531
532endmenu
533
534menu "Executable file formats"
535
536source "fs/Kconfig.binfmt"
537
538config COMPAT
539	bool
540	depends on SPARC64
541	default y
542	select COMPAT_BINFMT_ELF
543	select HAVE_UID16
544	select ARCH_WANT_OLD_COMPAT_IPC
545	select COMPAT_OLD_SIGACTION
546
547config SYSVIPC_COMPAT
548	bool
549	depends on COMPAT && SYSVIPC
550	default y
551
552config KEYS_COMPAT
553	def_bool y if COMPAT && KEYS
554
555endmenu
556
557source "net/Kconfig"
558
559source "drivers/Kconfig"
560
561source "drivers/sbus/char/Kconfig"
562
563source "fs/Kconfig"
564
565source "arch/sparc/Kconfig.debug"
566
567source "security/Kconfig"
568
569source "crypto/Kconfig"
570
571source "lib/Kconfig"
572