2 bool "64-bit kernel" if ARCH = "sparc"
3 default ARCH = "sparc64"
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.
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
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
27 select HAVE_DMA_API_DEBUG
28 select HAVE_ARCH_JUMP_LABEL if SPARC64
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select USE_GENERIC_SMP_HELPERS if SMP
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_CMOS_UPDATE
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
47 select GENERIC_ATOMIC64
54 select HAVE_FUNCTION_TRACER
55 select HAVE_FUNCTION_GRAPH_TRACER
56 select HAVE_FUNCTION_GRAPH_FP_TEST
57 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
58 select HAVE_KRETPROBES
60 select HAVE_RCU_TABLE_FREE if SMP
62 select HAVE_MEMBLOCK_NODE_MAP
63 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
64 select HAVE_DYNAMIC_FTRACE
65 select HAVE_FTRACE_MCOUNT_RECORD
66 select HAVE_SYSCALL_TRACEPOINTS
67 select HAVE_DEBUG_KMEMLEAK
71 select RTC_DRV_STARFIRE
72 select HAVE_PERF_EVENTS
73 select PERF_USE_VMALLOC
74 select IRQ_PREFLOW_FASTEOI
75 select ARCH_HAVE_NMI_SAFE_CMPXCHG
76 select HAVE_C_RECORDMCOUNT
78 select ARCH_SUPPORTS_ATOMIC_RMW
82 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
83 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
89 config STACKTRACE_SUPPORT
93 config LOCKDEP_SUPPORT
97 config HAVE_LATENCYTOP_SUPPORT
101 config ARCH_HIBERNATION_POSSIBLE
102 def_bool y if SPARC64
108 config HAVE_SETUP_PER_CPU_AREA
109 def_bool y if SPARC64
111 config NEED_PER_CPU_EMBED_FIRST_CHUNK
112 def_bool y if SPARC64
114 config NEED_PER_CPU_PAGE_FIRST_CHUNK
115 def_bool y if SPARC64
129 config NEED_DMA_MAP_STATE
132 config NEED_SG_DMA_LENGTH
135 config GENERIC_ISA_DMA
139 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
140 def_bool y if SPARC64
142 source "init/Kconfig"
144 source "kernel/Kconfig.freezer"
146 menu "Processor type and features"
149 bool "Symmetric multi-processing support"
151 This enables support for systems with more than one CPU. If you have
152 a system with only one CPU, say N. If you have a system with more
155 If you say N here, the kernel will run on single and multiprocessor
156 machines, but will use only one CPU of a multiprocessor machine. If
157 you say Y here, the kernel will run on many, but not all,
158 singleprocessor machines. On a singleprocessor machine, the kernel
159 will run faster if you say N here.
161 People using multiprocessor machines who say Y here should also say
162 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
163 Management" code will be disabled if you say Y here.
165 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
166 available at <http://www.tldp.org/docs.html#howto>.
168 If you don't know what to do here, say N.
171 int "Maximum number of CPUs"
173 range 2 32 if SPARC32
174 range 2 1024 if SPARC64
175 default 32 if SPARC32
176 default 64 if SPARC64
178 source kernel/Kconfig.hz
180 config RWSEM_GENERIC_SPINLOCK
184 config RWSEM_XCHGADD_ALGORITHM
188 config GENERIC_HWEIGHT
192 config GENERIC_CALIBRATE_DELAY
196 config ARCH_MAY_HAVE_PC_FDC
200 config EMULATED_CMPXCHG
204 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
205 is emulated, and therefore it is not completely atomic.
211 depends on SPARC32 && SMP
216 depends on SPARC64 && SMP
219 bool "Support for early boot text console"
223 Say Y here to enable a faster early framebuffer boot console.
226 bool "Enable seccomp to safely compute untrusted bytecode"
227 depends on SPARC64 && PROC_FS
230 This kernel feature is useful for number crunching applications
231 that may need to compute untrusted bytecode during their
232 execution. By using pipes or other transports made available to
233 the process as file descriptors supporting the read/write
234 syscalls, it's possible to isolate those applications in
235 their own address space using seccomp. Once seccomp is
236 enabled via /proc/<pid>/seccomp, it cannot be disabled
237 and the task is only allowed to execute a few safe syscalls
238 defined by each seccomp mode.
240 If unsure, say Y. Only embedded should say N here.
243 bool "Support for hot-pluggable CPUs"
244 depends on SPARC64 && SMP
246 Say Y here to experiment with turning CPUs off and on. CPUs
247 can be controlled through /sys/devices/system/cpu/cpu#.
248 Say N if you want to disable CPU hotplug.
251 source "drivers/cpufreq/Kconfig"
255 tristate "UltraSPARC-III Memory Controller driver"
259 This adds a driver for the UltraSPARC-III memory controller.
260 Loading this driver allows exact mnemonic strings to be
261 printed in the event of a memory error, so that the faulty DIMM
262 on the motherboard can be matched to the error.
264 If in doubt, say Y, as this information can be very useful.
266 # Global things across all Sun machines.
267 config GENERIC_LOCKBREAK
270 depends on SPARC64 && SMP && PREEMPT
274 depends on SPARC64 && SMP
279 depends on NEED_MULTIPLE_NODES
281 # Some NUMA nodes have memory ranges that span
282 # other nodes. Even though a pfn is valid and
283 # between a node's start and end pfns, it may not
284 # reside on that node. See memmap_init_zone()
286 config NODES_SPAN_OTHER_NODES
288 depends on NEED_MULTIPLE_NODES
290 config ARCH_SELECT_MEMORY_MODEL
291 def_bool y if SPARC64
293 config ARCH_SPARSEMEM_ENABLE
294 def_bool y if SPARC64
295 select SPARSEMEM_VMEMMAP_ENABLE
297 config ARCH_SPARSEMEM_DEFAULT
298 def_bool y if SPARC64
303 source "kernel/power/Kconfig"
307 bool "SMT (Hyperthreading) scheduler support"
308 depends on SPARC64 && SMP
311 SMT scheduler support improves the CPU scheduler's decision making
312 when dealing with SPARC cpus at a cost of slightly increased overhead
313 in some places. If unsure say N here.
316 bool "Multi-core scheduler support"
317 depends on SPARC64 && SMP
320 Multi-core scheduler support improves the CPU scheduler's decision
321 making when dealing with multi-core CPU chips at a cost of slightly
322 increased overhead in some places. If unsure say N here.
324 source "kernel/Kconfig.preempt"
327 bool "Default bootloader kernel arguments"
331 string "Initial kernel command string"
332 depends on CMDLINE_BOOL
333 default "console=ttyS0,9600 root=/dev/sda1"
335 Say Y here if you want to be able to pass default arguments to
336 the kernel. This will be overridden by the bootloader, if you
337 use one (such as SILO). This is most useful if you want to boot
338 a kernel from TFTP, and want default options to be available
339 with having them passed on the command line.
341 NOTE: This option WILL override the PROM bootargs setting!
347 Enable power management and CPU standby features on supported
351 tristate "Sun4m LED driver"
354 This driver toggles the front-panel LED on sun4m systems
355 in a user-specifiable manner. Its state can be probed
356 by reading /proc/led and its blinking mode can be changed
357 via writes to /proc/led
359 config SERIAL_CONSOLE
364 If you say Y here, it will be possible to use a serial port as the
365 system console (the system console is the device which receives all
366 kernel messages and warnings and which allows logins in single user
367 mode). This could be useful if some terminal or printer is connected
370 Even if you say Y here, the currently visible virtual console
371 (/dev/tty0) will still be used as the system console by default, but
372 you can alter that using a kernel command line option such as
373 "console=ttyS1". (Try "man bootparam" or see the documentation of
374 your boot loader (silo) about how to pass options to the kernel at
377 If you don't have a graphics card installed and you say Y here, the
378 kernel will automatically use the first serial line, /dev/ttyS0, as
384 bool "Sparc Leon processor family"
386 select USB_EHCI_BIG_ENDIAN_MMIO
387 select USB_EHCI_BIG_ENDIAN_DESC
389 If you say Y here if you are running on a SPARC-LEON processor.
390 The LEON processor is a synthesizable VHDL model of the
391 SPARC-v8 standard. LEON is part of the GRLIB collection of
392 IP cores that are distributed under GPL. GRLIB can be downloaded
393 from www.gaisler.com. You can download a sparc-linux cross-compilation
394 toolchain at www.gaisler.com.
397 menu "U-Boot options"
399 config UBOOT_LOAD_ADDR
400 hex "uImage Load Address"
403 U-Boot kernel load address, the address in physical address space
404 where u-boot will place the Linux kernel before booting it.
405 This address is normally the base address of main memory + 0x4000.
407 config UBOOT_FLASH_ADDR
408 hex "uImage.o Load Address"
411 Optional setting only affecting the uImage.o ELF-image used to
412 download the uImage file to the target using a ELF-loader other than
413 U-Boot. It may for example be used to download an uImage to FLASH with
414 the GRMON utility before even starting u-boot.
416 config UBOOT_ENTRY_ADDR
417 hex "uImage Entry Address"
420 Do not change this unless you know what you're doing. This is
421 hardcoded by the SPARC32 and LEON port.
423 This is the virtual address u-boot jumps to when booting the Linux
431 menu "Bus options (PCI etc.)"
441 bool "Sun Logical Domains support"
444 Say Y here is you want to support virtual devices via
448 bool "Support for PCI and PS/2 keyboard/mouse"
450 Find out whether your system includes a PCI bus. PCI is the name of
451 a bus system, i.e. the way the CPU talks to the other stuff inside
452 your box. If you say Y here, the kernel will include drivers and
453 infrastructure code to support PCI bus devices.
455 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
456 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
457 All of these platforms are extremely obscure, so say N if unsure.
460 def_bool PCI if SPARC64
467 depends on PCI && SPARC32 && !SPARC_LEON
472 depends on PCI && SPARC_LEON
476 bool "GRPCI Host Bridge Support"
480 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
481 PCI host controller is typically found in GRLIB SPARC32/LEON
482 systems. The driver has one property (all_pci_errors) controlled
483 from the bootloader that makes the GRPCI to generate interrupts
484 on detected PCI Parity and System errors.
487 bool "GRPCI2 Host Bridge Support"
491 Say Y here to include the GRPCI2 Host Bridge Driver.
493 source "drivers/pci/Kconfig"
495 source "drivers/pcmcia/Kconfig"
497 config SUN_OPENPROMFS
498 tristate "Openprom tree appears in /proc/openprom"
500 If you say Y, the OpenPROM device tree will be available as a
501 virtual file system, which you can mount to /proc/openprom by "mount
502 -t openpromfs none /proc/openprom".
504 To compile the /proc/openprom support as a module, choose M here: the
505 module will be called openpromfs.
507 Only choose N if you know in advance that you will not need to modify
508 OpenPROM settings on the running system.
514 depends on SPARC64 && PCI
516 config SPARC64_PCI_MSI
519 depends on SPARC64_PCI && PCI_MSI
523 menu "Executable file formats"
525 source "fs/Kconfig.binfmt"
531 select COMPAT_BINFMT_ELF
533 select ARCH_WANT_OLD_COMPAT_IPC
534 select COMPAT_OLD_SIGACTION
536 config SYSVIPC_COMPAT
538 depends on COMPAT && SYSVIPC
542 def_bool y if COMPAT && KEYS
548 source "drivers/Kconfig"
550 source "drivers/sbus/char/Kconfig"
554 source "arch/sparc/Kconfig.debug"
556 source "security/Kconfig"
558 source "crypto/Kconfig"