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
29 select HAVE_GENERIC_HARDIRQS
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select USE_GENERIC_SMP_HELPERS if SMP
33 select GENERIC_PCI_IOMAP
34 select HAVE_NMI_WATCHDOG if SPARC64
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
48 select GENERIC_ATOMIC64
55 select ARCH_SUPPORTS_MSI
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
60 select HAVE_KRETPROBES
62 select HAVE_RCU_TABLE_FREE if SMP
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_DEBUG_KMEMLEAK
73 select RTC_DRV_STARFIRE
74 select HAVE_PERF_EVENTS
75 select PERF_USE_VMALLOC
76 select IRQ_PREFLOW_FASTEOI
77 select ARCH_HAVE_NMI_SAFE_CMPXCHG
78 select HAVE_C_RECORDMCOUNT
83 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
84 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
90 config STACKTRACE_SUPPORT
94 config LOCKDEP_SUPPORT
98 config HAVE_LATENCYTOP_SUPPORT
106 config HAVE_SETUP_PER_CPU_AREA
107 def_bool y if SPARC64
109 config NEED_PER_CPU_EMBED_FIRST_CHUNK
110 def_bool y if SPARC64
112 config NEED_PER_CPU_PAGE_FIRST_CHUNK
113 def_bool y if SPARC64
127 config NEED_DMA_MAP_STATE
130 config NEED_SG_DMA_LENGTH
133 config GENERIC_ISA_DMA
140 Generic GPIO API support
142 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
143 def_bool y if SPARC64
145 source "init/Kconfig"
147 source "kernel/Kconfig.freezer"
149 menu "Processor type and features"
152 bool "Symmetric multi-processing support"
154 This enables support for systems with more than one CPU. If you have
155 a system with only one CPU, say N. If you have a system with more
158 If you say N here, the kernel will run on single and multiprocessor
159 machines, but will use only one CPU of a multiprocessor machine. If
160 you say Y here, the kernel will run on many, but not all,
161 singleprocessor machines. On a singleprocessor machine, the kernel
162 will run faster if you say N here.
164 People using multiprocessor machines who say Y here should also say
165 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
166 Management" code will be disabled if you say Y here.
168 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
169 available at <http://www.tldp.org/docs.html#howto>.
171 If you don't know what to do here, say N.
174 int "Maximum number of CPUs"
176 range 2 32 if SPARC32
177 range 2 1024 if SPARC64
178 default 32 if SPARC32
179 default 64 if SPARC64
181 source kernel/Kconfig.hz
183 config RWSEM_GENERIC_SPINLOCK
187 config RWSEM_XCHGADD_ALGORITHM
191 config GENERIC_HWEIGHT
195 config GENERIC_CALIBRATE_DELAY
199 config ARCH_MAY_HAVE_PC_FDC
203 config EMULATED_CMPXCHG
207 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
208 is emulated, and therefore it is not completely atomic.
214 depends on SPARC32 && SMP
219 depends on SPARC64 && SMP
222 bool "Support for early boot text console"
226 Say Y here to enable a faster early framebuffer boot console.
229 bool "Enable seccomp to safely compute untrusted bytecode"
230 depends on SPARC64 && PROC_FS
233 This kernel feature is useful for number crunching applications
234 that may need to compute untrusted bytecode during their
235 execution. By using pipes or other transports made available to
236 the process as file descriptors supporting the read/write
237 syscalls, it's possible to isolate those applications in
238 their own address space using seccomp. Once seccomp is
239 enabled via /proc/<pid>/seccomp, it cannot be disabled
240 and the task is only allowed to execute a few safe syscalls
241 defined by each seccomp mode.
243 If unsure, say Y. Only embedded should say N here.
246 bool "Support for hot-pluggable CPUs"
247 depends on SPARC64 && SMP
250 Say Y here to experiment with turning CPUs off and on. CPUs
251 can be controlled through /sys/devices/system/cpu/cpu#.
252 Say N if you want to disable CPU hotplug.
255 source "drivers/cpufreq/Kconfig"
259 tristate "UltraSPARC-III Memory Controller driver"
263 This adds a driver for the UltraSPARC-III memory controller.
264 Loading this driver allows exact mnemonic strings to be
265 printed in the event of a memory error, so that the faulty DIMM
266 on the motherboard can be matched to the error.
268 If in doubt, say Y, as this information can be very useful.
270 # Global things across all Sun machines.
271 config GENERIC_LOCKBREAK
274 depends on SPARC64 && SMP && PREEMPT
278 depends on SPARC64 && SMP
283 depends on NEED_MULTIPLE_NODES
285 # Some NUMA nodes have memory ranges that span
286 # other nodes. Even though a pfn is valid and
287 # between a node's start and end pfns, it may not
288 # reside on that node. See memmap_init_zone()
290 config NODES_SPAN_OTHER_NODES
292 depends on NEED_MULTIPLE_NODES
294 config ARCH_SELECT_MEMORY_MODEL
295 def_bool y if SPARC64
297 config ARCH_SPARSEMEM_ENABLE
298 def_bool y if SPARC64
299 select SPARSEMEM_VMEMMAP_ENABLE
301 config ARCH_SPARSEMEM_DEFAULT
302 def_bool y if SPARC64
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 "GRPCI2 Host Bridge Support"
480 Say Y here to include the GRPCI2 Host Bridge Driver.
482 source "drivers/pci/Kconfig"
484 source "drivers/pcmcia/Kconfig"
486 config SUN_OPENPROMFS
487 tristate "Openprom tree appears in /proc/openprom"
489 If you say Y, the OpenPROM device tree will be available as a
490 virtual file system, which you can mount to /proc/openprom by "mount
491 -t openpromfs none /proc/openprom".
493 To compile the /proc/openprom support as a module, choose M here: the
494 module will be called openpromfs.
496 Only choose N if you know in advance that you will not need to modify
497 OpenPROM settings on the running system.
503 depends on SPARC64 && PCI
507 menu "Executable file formats"
509 source "fs/Kconfig.binfmt"
515 select COMPAT_BINFMT_ELF
517 select ARCH_WANT_OLD_COMPAT_IPC
518 select COMPAT_OLD_SIGACTION
520 config SYSVIPC_COMPAT
522 depends on COMPAT && SYSVIPC
526 def_bool y if COMPAT && KEYS
532 source "drivers/Kconfig"
534 source "drivers/sbus/char/Kconfig"
538 source "arch/sparc/Kconfig.debug"
540 source "security/Kconfig"
542 source "crypto/Kconfig"