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761b6026 1config 64BIT
104daea1
MY
2 bool "64-bit kernel" if "$(ARCH)" = "sparc"
3 default "$(ARCH)" = "sparc64"
761b6026
BB
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
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12config SPARC
13 bool
14 default y
ff649a6f 15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
a5252c28 16 select ARCH_MIGHT_HAVE_PC_SERIO
7b14c647 17 select OF
3cfc535c 18 select OF_PROMTREE
35da3e39
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19 select HAVE_IDE
20 select HAVE_OPROFILE
26b4c912 21 select HAVE_ARCH_KGDB if !SMP || SPARC64
35da3e39 22 select HAVE_ARCH_TRACEHOOK
5f56a5df 23 select HAVE_EXIT_THREAD
7ac57a89 24 select SYSCTL_EXCEPTION_TRACE
35da3e39
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25 select RTC_CLASS
26 select RTC_DRV_M48T59
460ea8d7 27 select RTC_SYSTOHC
4f6500ff 28 select HAVE_ARCH_JUMP_LABEL if SPARC64
6baa9b20 29 select GENERIC_IRQ_SHOW
c1d7e01d 30 select ARCH_WANT_IPC_PARSE_VERSION
a21a2fd4 31 select GENERIC_PCI_IOMAP
d314d74c 32 select HAVE_NMI_WATCHDOG if SPARC64
7a12b503
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33 select HAVE_CBPF_JIT if SPARC32
34 select HAVE_EBPF_JIT if SPARC64
9b2a60c4 35 select HAVE_DEBUG_BUGVERBOSE
f0a2bc7e 36 select GENERIC_SMP_IDLE_THREAD
c7523a7c 37 select GENERIC_CLOCKEVENTS
2922585b 38 select GENERIC_STRNCPY_FROM_USER
2c66f623 39 select GENERIC_STRNLEN_USER
786d35d4 40 select MODULES_USE_ELF_RELA
eaca6eae 41 select ODD_RT_SIGACTION
52ad6b3f 42 select OLD_SIGSUSPEND
308c09f1 43 select ARCH_HAS_SG_CHAIN
fff7fb0b 44 select CPU_NO_EFFICIENT_FFS
395102db 45 select LOCKDEP_SMALL if LOCKDEP
f616ab59 46 select NEED_DMA_MAP_STATE
86596f0a 47 select NEED_SG_DMA_LENGTH
35da3e39 48
35da3e39 49config SPARC32
761b6026 50 def_bool !64BIT
dfaad39c 51 select ARCH_HAS_SYNC_DMA_FOR_CPU
bc3ec75d 52 select DMA_DIRECT_OPS
aea1181b 53 select GENERIC_ATOMIC64
c6df4b17 54 select CLZ_TAB
af1839eb 55 select HAVE_UID16
a274bd49 56 select OLD_SIGACTION
35da3e39 57
26b4c912 58config SPARC64
761b6026 59 def_bool 64BIT
26b4c912 60 select HAVE_FUNCTION_TRACER
9960e9e8 61 select HAVE_FUNCTION_GRAPH_TRACER
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62 select HAVE_KRETPROBES
63 select HAVE_KPROBES
4a0100f7 64 select HAVE_RCU_TABLE_FREE if SMP
2a4814df 65 select HAVE_MEMBLOCK_NODE_MAP
b9156ebb 66 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
9be12f9b
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67 select HAVE_DYNAMIC_FTRACE
68 select HAVE_FTRACE_MCOUNT_RECORD
c658ad1b 69 select HAVE_SYSCALL_TRACEPOINTS
812cb83a 70 select HAVE_CONTEXT_TRACKING
b69ec42b 71 select HAVE_DEBUG_KMEMLEAK
a4ce5a48 72 select IOMMU_HELPER
ee6a9333 73 select SPARSE_IRQ
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74 select RTC_DRV_CMOS
75 select RTC_DRV_BQ4802
76 select RTC_DRV_SUN4V
77 select RTC_DRV_STARFIRE
cdd6c482 78 select HAVE_PERF_EVENTS
906010b2 79 select PERF_USE_VMALLOC
fcd8d4f4 80 select IRQ_PREFLOW_FASTEOI
df013ffb 81 select ARCH_HAVE_NMI_SAFE_CMPXCHG
178a2960 82 select HAVE_C_RECORDMCOUNT
7a017721 83 select HAVE_ARCH_AUDITSYSCALL
4badad35 84 select ARCH_SUPPORTS_ATOMIC_RMW
42a0bb3f 85 select HAVE_NMI
b7c02b73 86 select HAVE_REGS_AND_STACK_ACCESS_API
a37594f1 87 select ARCH_USE_QUEUED_RWLOCKS
145d9785 88 select ARCH_USE_QUEUED_SPINLOCKS
9a08862a
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89 select GENERIC_TIME_VSYSCALL
90 select ARCH_CLOCKSOURCE_DATA
3010a5ea 91 select ARCH_HAS_PTE_SPECIAL
26b4c912 92
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93config ARCH_DEFCONFIG
94 string
95 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
96 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
97
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98config ARCH_PROC_KCORE_TEXT
99 def_bool y
100
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101config CPU_BIG_ENDIAN
102 def_bool y
103
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104config ARCH_ATU
105 bool
106 default y if SPARC64
107
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108config STACKTRACE_SUPPORT
109 bool
110 default y if SPARC64
111
112config LOCKDEP_SUPPORT
113 bool
114 default y if SPARC64
115
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116config ARCH_HIBERNATION_POSSIBLE
117 def_bool y if SPARC64
118
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119config AUDIT_ARCH
120 bool
7e7e93a2 121 default y
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122
123config HAVE_SETUP_PER_CPU_AREA
124 def_bool y if SPARC64
125
bcb2107f 126config NEED_PER_CPU_EMBED_FIRST_CHUNK
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127 def_bool y if SPARC64
128
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129config NEED_PER_CPU_PAGE_FIRST_CHUNK
130 def_bool y if SPARC64
131
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132config MMU
133 bool
134 default y
135
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136config HIGHMEM
137 bool
26b4c912 138 default y if SPARC32
1da177e4 139
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140config ZONE_DMA
141 bool
26b4c912 142 default y if SPARC32
5ac6da66 143
1da177e4
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144config GENERIC_ISA_DMA
145 bool
26b4c912 146 default y if SPARC32
1da177e4 147
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148config ARCH_SUPPORTS_DEBUG_PAGEALLOC
149 def_bool y if SPARC64
150
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151config PGTABLE_LEVELS
152 default 4 if 64BIT
153 default 3
154
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155config ARCH_SUPPORTS_UPROBES
156 def_bool y if SPARC64
157
26b4c912 158menu "Processor type and features"
1da177e4 159
1da177e4 160config SMP
6b7679dd 161 bool "Symmetric multi-processing support"
1da177e4
LT
162 ---help---
163 This enables support for systems with more than one CPU. If you have
164 a system with only one CPU, say N. If you have a system with more
165 than one CPU, say Y.
166
4a474157 167 If you say N here, the kernel will run on uni- and multiprocessor
1da177e4
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168 machines, but will use only one CPU of a multiprocessor machine. If
169 you say Y here, the kernel will run on many, but not all,
4a474157 170 uniprocessor machines. On a uniprocessor machine, the kernel
1da177e4
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171 will run faster if you say N here.
172
173 People using multiprocessor machines who say Y here should also say
174 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
175 Management" code will be disabled if you say Y here.
176
ecf38679 177 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
03502faa 178 available at <http://www.tldp.org/docs.html#howto>.
1da177e4
LT
179
180 If you don't know what to do here, say N.
181
182config NR_CPUS
26b4c912 183 int "Maximum number of CPUs"
1da177e4 184 depends on SMP
26b4c912 185 range 2 32 if SPARC32
c79a1373 186 range 2 4096 if SPARC64
26b4c912 187 default 32 if SPARC32
c79a1373 188 default 4096 if SPARC64
1da177e4 189
26b4c912 190source kernel/Kconfig.hz
1da177e4 191
1da177e4
LT
192config RWSEM_GENERIC_SPINLOCK
193 bool
26b4c912 194 default y if SPARC32
1da177e4
LT
195
196config RWSEM_XCHGADD_ALGORITHM
197 bool
26b4c912 198 default y if SPARC64
1da177e4 199
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200config GENERIC_HWEIGHT
201 bool
e0b20296 202 default y
d59288b7 203
1da177e4
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204config GENERIC_CALIBRATE_DELAY
205 bool
206 default y
207
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208config ARCH_MAY_HAVE_PC_FDC
209 bool
210 default y
211
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212config EMULATED_CMPXCHG
213 bool
26b4c912 214 default y if SPARC32
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215 help
216 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
217 is emulated, and therefore it is not completely atomic.
218
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219# Makefile helpers
220config SPARC32_SMP
221 bool
222 default y
223 depends on SPARC32 && SMP
224
225config SPARC64_SMP
226 bool
227 default y
228 depends on SPARC64 && SMP
229
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230config EARLYFB
231 bool "Support for early boot text console"
232 default y
233 depends on SPARC64
234 help
235 Say Y here to enable a faster early framebuffer boot console.
236
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237config SECCOMP
238 bool "Enable seccomp to safely compute untrusted bytecode"
239 depends on SPARC64 && PROC_FS
240 default y
241 help
242 This kernel feature is useful for number crunching applications
243 that may need to compute untrusted bytecode during their
244 execution. By using pipes or other transports made available to
245 the process as file descriptors supporting the read/write
246 syscalls, it's possible to isolate those applications in
247 their own address space using seccomp. Once seccomp is
248 enabled via /proc/<pid>/seccomp, it cannot be disabled
249 and the task is only allowed to execute a few safe syscalls
250 defined by each seccomp mode.
251
252 If unsure, say Y. Only embedded should say N here.
253
254config HOTPLUG_CPU
255 bool "Support for hot-pluggable CPUs"
256 depends on SPARC64 && SMP
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257 help
258 Say Y here to experiment with turning CPUs off and on. CPUs
259 can be controlled through /sys/devices/system/cpu/cpu#.
260 Say N if you want to disable CPU hotplug.
261
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262if SPARC64
263source "drivers/cpufreq/Kconfig"
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264endif
265
266config US3_MC
267 tristate "UltraSPARC-III Memory Controller driver"
268 depends on SPARC64
269 default y
270 help
271 This adds a driver for the UltraSPARC-III memory controller.
272 Loading this driver allows exact mnemonic strings to be
273 printed in the event of a memory error, so that the faulty DIMM
274 on the motherboard can be matched to the error.
275
276 If in doubt, say Y, as this information can be very useful.
277
278# Global things across all Sun machines.
279config GENERIC_LOCKBREAK
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280 bool
281 default y
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282 depends on SPARC64 && SMP && PREEMPT
283
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284config NUMA
285 bool "NUMA support"
286 depends on SPARC64 && SMP
287
288config NODES_SHIFT
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289 int "Maximum NUMA Nodes (as a power of 2)"
290 range 4 5 if SPARC64
291 default "5"
26b4c912 292 depends on NEED_MULTIPLE_NODES
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293 help
294 Specify the maximum number of NUMA Nodes available on the target
295 system. Increases memory reserved to accommodate various tables.
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296
297# Some NUMA nodes have memory ranges that span
298# other nodes. Even though a pfn is valid and
299# between a node's start and end pfns, it may not
300# reside on that node. See memmap_init_zone()
301# for details.
302config NODES_SPAN_OTHER_NODES
303 def_bool y
304 depends on NEED_MULTIPLE_NODES
305
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306config ARCH_SELECT_MEMORY_MODEL
307 def_bool y if SPARC64
308
309config ARCH_SPARSEMEM_ENABLE
310 def_bool y if SPARC64
311 select SPARSEMEM_VMEMMAP_ENABLE
312
313config ARCH_SPARSEMEM_DEFAULT
314 def_bool y if SPARC64
315
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316config FORCE_MAX_ZONEORDER
317 int "Maximum zone order"
318 default "13"
319 help
320 The kernel memory allocator divides physically contiguous memory
321 blocks into "zones", where each zone is a power of two number of
322 pages. This option selects the largest power of two that the kernel
323 keeps in the memory allocator. If you need to allocate very large
324 blocks of physically contiguous memory, then you may need to
325 increase this value.
326
327 This config option is actually maximum order plus one. For example,
328 a value of 13 means that the largest free memory block is 2^12 pages.
329
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330if SPARC64
331source "kernel/power/Kconfig"
332endif
333
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334config SCHED_SMT
335 bool "SMT (Hyperthreading) scheduler support"
336 depends on SPARC64 && SMP
337 default y
338 help
339 SMT scheduler support improves the CPU scheduler's decision making
340 when dealing with SPARC cpus at a cost of slightly increased overhead
341 in some places. If unsure say N here.
342
343config SCHED_MC
344 bool "Multi-core scheduler support"
345 depends on SPARC64 && SMP
346 default y
347 help
348 Multi-core scheduler support improves the CPU scheduler's decision
349 making when dealing with multi-core CPU chips at a cost of slightly
350 increased overhead in some places. If unsure say N here.
351
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352config CMDLINE_BOOL
353 bool "Default bootloader kernel arguments"
354 depends on SPARC64
355
356config CMDLINE
357 string "Initial kernel command string"
358 depends on CMDLINE_BOOL
359 default "console=ttyS0,9600 root=/dev/sda1"
360 help
361 Say Y here if you want to be able to pass default arguments to
362 the kernel. This will be overridden by the bootloader, if you
363 use one (such as SILO). This is most useful if you want to boot
364 a kernel from TFTP, and want default options to be available
365 with having them passed on the command line.
366
367 NOTE: This option WILL override the PROM bootargs setting!
368
369config SUN_PM
370 bool
371 default y if SPARC32
1da177e4
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372 help
373 Enable power management and CPU standby features on supported
374 SPARC platforms.
375
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376config SPARC_LED
377 tristate "Sun4m LED driver"
26b4c912 378 depends on SPARC32
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379 help
380 This driver toggles the front-panel LED on sun4m systems
381 in a user-specifiable manner. Its state can be probed
382 by reading /proc/led and its blinking mode can be changed
383 via writes to /proc/led
384
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385config SERIAL_CONSOLE
386 bool
387 depends on SPARC32
388 default y
389 ---help---
390 If you say Y here, it will be possible to use a serial port as the
391 system console (the system console is the device which receives all
392 kernel messages and warnings and which allows logins in single user
393 mode). This could be useful if some terminal or printer is connected
394 to that serial port.
395
396 Even if you say Y here, the currently visible virtual console
397 (/dev/tty0) will still be used as the system console by default, but
398 you can alter that using a kernel command line option such as
399 "console=ttyS1". (Try "man bootparam" or see the documentation of
400 your boot loader (silo) about how to pass options to the kernel at
401 boot time.)
402
403 If you don't have a graphics card installed and you say Y here, the
404 kernel will automatically use the first serial line, /dev/ttyS0, as
405 system console.
406
407 If unsure, say N.
4b27e0e1 408
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409config SPARC_LEON
410 bool "Sparc Leon processor family"
411 depends on SPARC32
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412 select USB_EHCI_BIG_ENDIAN_MMIO
413 select USB_EHCI_BIG_ENDIAN_DESC
5efad9ee
JH
414 select USB_UHCI_BIG_ENDIAN_MMIO
415 select USB_UHCI_BIG_ENDIAN_DESC
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416 ---help---
417 If you say Y here if you are running on a SPARC-LEON processor.
418 The LEON processor is a synthesizable VHDL model of the
419 SPARC-v8 standard. LEON is part of the GRLIB collection of
420 IP cores that are distributed under GPL. GRLIB can be downloaded
421 from www.gaisler.com. You can download a sparc-linux cross-compilation
422 toolchain at www.gaisler.com.
423
684151a7
DH
424if SPARC_LEON
425menu "U-Boot options"
426
427config UBOOT_LOAD_ADDR
428 hex "uImage Load Address"
429 default 0x40004000
430 ---help---
431 U-Boot kernel load address, the address in physical address space
432 where u-boot will place the Linux kernel before booting it.
433 This address is normally the base address of main memory + 0x4000.
434
435config UBOOT_FLASH_ADDR
436 hex "uImage.o Load Address"
437 default 0x00080000
438 ---help---
439 Optional setting only affecting the uImage.o ELF-image used to
440 download the uImage file to the target using a ELF-loader other than
441 U-Boot. It may for example be used to download an uImage to FLASH with
442 the GRMON utility before even starting u-boot.
443
444config UBOOT_ENTRY_ADDR
445 hex "uImage Entry Address"
446 default 0xf0004000
447 ---help---
448 Do not change this unless you know what you're doing. This is
449 hardcoded by the SPARC32 and LEON port.
450
451 This is the virtual address u-boot jumps to when booting the Linux
452 Kernel.
453
454endmenu
455endif
456
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457endmenu
458
459menu "Bus options (PCI etc.)"
4b27e0e1
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460config SBUS
461 bool
462 default y
463
464config SBUSCHAR
465 bool
466 default y
467
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468config SUN_LDOMS
469 bool "Sun Logical Domains support"
470 depends on SPARC64
471 help
472 Say Y here is you want to support virtual devices via
473 Logical Domains.
474
1da177e4
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475config PCI
476 bool "Support for PCI and PS/2 keyboard/mouse"
477 help
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478 Find out whether your system includes a PCI bus. PCI is the name of
479 a bus system, i.e. the way the CPU talks to the other stuff inside
480 your box. If you say Y here, the kernel will include drivers and
481 infrastructure code to support PCI bus devices.
482
1da177e4
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483 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
484 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
485 All of these platforms are extremely obscure, so say N if unsure.
486
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487config PCI_DOMAINS
488 def_bool PCI if SPARC64
489
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490config PCI_SYSCALL
491 def_bool PCI
492
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493config PCIC_PCI
494 bool
8c47f8d0 495 depends on PCI && SPARC32 && !SPARC_LEON
cfe3af5d
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496 default y
497
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DH
498config LEON_PCI
499 bool
500 depends on PCI && SPARC_LEON
501 default y
502
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DH
503config SPARC_GRPCI1
504 bool "GRPCI Host Bridge Support"
505 depends on LEON_PCI
506 default y
507 help
508 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
509 PCI host controller is typically found in GRLIB SPARC32/LEON
510 systems. The driver has one property (all_pci_errors) controlled
511 from the bootloader that makes the GRPCI to generate interrupts
512 on detected PCI Parity and System errors.
513
1ab0a676 514config SPARC_GRPCI2
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DH
515 bool "GRPCI2 Host Bridge Support"
516 depends on LEON_PCI
517 default y
518 help
519 Say Y here to include the GRPCI2 Host Bridge Driver.
520
1da177e4
LT
521source "drivers/pci/Kconfig"
522
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523source "drivers/pcmcia/Kconfig"
524
1da177e4
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525config SUN_OPENPROMFS
526 tristate "Openprom tree appears in /proc/openprom"
527 help
528 If you say Y, the OpenPROM device tree will be available as a
529 virtual file system, which you can mount to /proc/openprom by "mount
530 -t openpromfs none /proc/openprom".
531
532 To compile the /proc/openprom support as a module, choose M here: the
533 module will be called openpromfs.
534
535 Only choose N if you know in advance that you will not need to modify
536 OpenPROM settings on the running system.
537
a988fb80 538# Makefile helpers
d670bd4f
SR
539config SPARC64_PCI
540 bool
541 default y
542 depends on SPARC64 && PCI
30aaa808 543
a988fb80
TP
544config SPARC64_PCI_MSI
545 bool
546 default y
547 depends on SPARC64_PCI && PCI_MSI
548
30aaa808
WLII
549endmenu
550
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SR
551config COMPAT
552 bool
553 depends on SPARC64
554 default y
555 select COMPAT_BINFMT_ELF
af1839eb 556 select HAVE_UID16
48b25c43 557 select ARCH_WANT_OLD_COMPAT_IPC
a274bd49 558 select COMPAT_OLD_SIGACTION
26b4c912
SR
559
560config SYSVIPC_COMPAT
561 bool
562 depends on COMPAT && SYSVIPC
563 default y
564
1da177e4 565source "drivers/sbus/char/Kconfig"