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_IDLE_LOOP
41 select GENERIC_STRNCPY_FROM_USER
42 select GENERIC_STRNLEN_USER
43 select MODULES_USE_ELF_RELA
44 select ODD_RT_SIGACTION
49 select GENERIC_ATOMIC64
56 select ARCH_SUPPORTS_MSI
57 select HAVE_FUNCTION_TRACER
58 select HAVE_FUNCTION_GRAPH_TRACER
59 select HAVE_FUNCTION_GRAPH_FP_TEST
60 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
61 select HAVE_KRETPROBES
63 select HAVE_RCU_TABLE_FREE if SMP
65 select HAVE_MEMBLOCK_NODE_MAP
66 select HAVE_SYSCALL_WRAPPERS
67 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
68 select HAVE_DYNAMIC_FTRACE
69 select HAVE_FTRACE_MCOUNT_RECORD
70 select HAVE_SYSCALL_TRACEPOINTS
71 select HAVE_DEBUG_KMEMLEAK
75 select RTC_DRV_STARFIRE
76 select HAVE_PERF_EVENTS
77 select PERF_USE_VMALLOC
78 select IRQ_PREFLOW_FASTEOI
79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
80 select HAVE_C_RECORDMCOUNT
85 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
86 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
92 config STACKTRACE_SUPPORT
96 config LOCKDEP_SUPPORT
100 config HAVE_LATENCYTOP_SUPPORT
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
142 Generic GPIO API support
144 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
145 def_bool y if SPARC64
147 source "init/Kconfig"
149 source "kernel/Kconfig.freezer"
151 menu "Processor type and features"
154 bool "Symmetric multi-processing support"
156 This enables support for systems with more than one CPU. If you have
157 a system with only one CPU, say N. If you have a system with more
160 If you say N here, the kernel will run on single and multiprocessor
161 machines, but will use only one CPU of a multiprocessor machine. If
162 you say Y here, the kernel will run on many, but not all,
163 singleprocessor machines. On a singleprocessor machine, the kernel
164 will run faster if you say N here.
166 People using multiprocessor machines who say Y here should also say
167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
168 Management" code will be disabled if you say Y here.
170 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
171 available at <http://www.tldp.org/docs.html#howto>.
173 If you don't know what to do here, say N.
176 int "Maximum number of CPUs"
178 range 2 32 if SPARC32
179 range 2 1024 if SPARC64
180 default 32 if SPARC32
181 default 64 if SPARC64
183 source kernel/Kconfig.hz
185 config RWSEM_GENERIC_SPINLOCK
189 config RWSEM_XCHGADD_ALGORITHM
193 config GENERIC_HWEIGHT
197 config GENERIC_CALIBRATE_DELAY
201 config ARCH_MAY_HAVE_PC_FDC
205 config EMULATED_CMPXCHG
209 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
210 is emulated, and therefore it is not completely atomic.
216 depends on SPARC32 && SMP
221 depends on SPARC64 && SMP
224 bool "Support for early boot text console"
228 Say Y here to enable a faster early framebuffer boot console.
231 bool "Enable seccomp to safely compute untrusted bytecode"
232 depends on SPARC64 && PROC_FS
235 This kernel feature is useful for number crunching applications
236 that may need to compute untrusted bytecode during their
237 execution. By using pipes or other transports made available to
238 the process as file descriptors supporting the read/write
239 syscalls, it's possible to isolate those applications in
240 their own address space using seccomp. Once seccomp is
241 enabled via /proc/<pid>/seccomp, it cannot be disabled
242 and the task is only allowed to execute a few safe syscalls
243 defined by each seccomp mode.
245 If unsure, say Y. Only embedded should say N here.
248 bool "Support for hot-pluggable CPUs"
249 depends on SPARC64 && SMP
252 Say Y here to experiment with turning CPUs off and on. CPUs
253 can be controlled through /sys/devices/system/cpu/cpu#.
254 Say N if you want to disable CPU hotplug.
257 source "drivers/cpufreq/Kconfig"
260 tristate "UltraSPARC-III CPU Frequency driver"
262 select CPU_FREQ_TABLE
264 This adds the CPUFreq driver for UltraSPARC-III processors.
266 For details, take a look at <file:Documentation/cpu-freq>.
271 tristate "UltraSPARC-IIe CPU Frequency driver"
273 select CPU_FREQ_TABLE
275 This adds the CPUFreq driver for UltraSPARC-IIe processors.
277 For details, take a look at <file:Documentation/cpu-freq>.
284 tristate "UltraSPARC-III Memory Controller driver"
288 This adds a driver for the UltraSPARC-III memory controller.
289 Loading this driver allows exact mnemonic strings to be
290 printed in the event of a memory error, so that the faulty DIMM
291 on the motherboard can be matched to the error.
293 If in doubt, say Y, as this information can be very useful.
295 # Global things across all Sun machines.
296 config GENERIC_LOCKBREAK
299 depends on SPARC64 && SMP && PREEMPT
303 depends on SPARC64 && SMP
308 depends on NEED_MULTIPLE_NODES
310 # Some NUMA nodes have memory ranges that span
311 # other nodes. Even though a pfn is valid and
312 # between a node's start and end pfns, it may not
313 # reside on that node. See memmap_init_zone()
315 config NODES_SPAN_OTHER_NODES
317 depends on NEED_MULTIPLE_NODES
319 config ARCH_SELECT_MEMORY_MODEL
320 def_bool y if SPARC64
322 config ARCH_SPARSEMEM_ENABLE
323 def_bool y if SPARC64
324 select SPARSEMEM_VMEMMAP_ENABLE
326 config ARCH_SPARSEMEM_DEFAULT
327 def_bool y if SPARC64
332 bool "SMT (Hyperthreading) scheduler support"
333 depends on SPARC64 && SMP
336 SMT scheduler support improves the CPU scheduler's decision making
337 when dealing with SPARC cpus at a cost of slightly increased overhead
338 in some places. If unsure say N here.
341 bool "Multi-core scheduler support"
342 depends on SPARC64 && SMP
345 Multi-core scheduler support improves the CPU scheduler's decision
346 making when dealing with multi-core CPU chips at a cost of slightly
347 increased overhead in some places. If unsure say N here.
349 source "kernel/Kconfig.preempt"
352 bool "Default bootloader kernel arguments"
356 string "Initial kernel command string"
357 depends on CMDLINE_BOOL
358 default "console=ttyS0,9600 root=/dev/sda1"
360 Say Y here if you want to be able to pass default arguments to
361 the kernel. This will be overridden by the bootloader, if you
362 use one (such as SILO). This is most useful if you want to boot
363 a kernel from TFTP, and want default options to be available
364 with having them passed on the command line.
366 NOTE: This option WILL override the PROM bootargs setting!
372 Enable power management and CPU standby features on supported
376 tristate "Sun4m LED driver"
379 This driver toggles the front-panel LED on sun4m systems
380 in a user-specifiable manner. Its state can be probed
381 by reading /proc/led and its blinking mode can be changed
382 via writes to /proc/led
384 config SERIAL_CONSOLE
389 If you say Y here, it will be possible to use a serial port as the
390 system console (the system console is the device which receives all
391 kernel messages and warnings and which allows logins in single user
392 mode). This could be useful if some terminal or printer is connected
395 Even if you say Y here, the currently visible virtual console
396 (/dev/tty0) will still be used as the system console by default, but
397 you can alter that using a kernel command line option such as
398 "console=ttyS1". (Try "man bootparam" or see the documentation of
399 your boot loader (silo) about how to pass options to the kernel at
402 If you don't have a graphics card installed and you say Y here, the
403 kernel will automatically use the first serial line, /dev/ttyS0, as
409 bool "Sparc Leon processor family"
412 If you say Y here if you are running on a SPARC-LEON processor.
413 The LEON processor is a synthesizable VHDL model of the
414 SPARC-v8 standard. LEON is part of the GRLIB collection of
415 IP cores that are distributed under GPL. GRLIB can be downloaded
416 from www.gaisler.com. You can download a sparc-linux cross-compilation
417 toolchain at www.gaisler.com.
420 menu "U-Boot options"
422 config UBOOT_LOAD_ADDR
423 hex "uImage Load Address"
426 U-Boot kernel load address, the address in physical address space
427 where u-boot will place the Linux kernel before booting it.
428 This address is normally the base address of main memory + 0x4000.
430 config UBOOT_FLASH_ADDR
431 hex "uImage.o Load Address"
434 Optional setting only affecting the uImage.o ELF-image used to
435 download the uImage file to the target using a ELF-loader other than
436 U-Boot. It may for example be used to download an uImage to FLASH with
437 the GRMON utility before even starting u-boot.
439 config UBOOT_ENTRY_ADDR
440 hex "uImage Entry Address"
443 Do not change this unless you know what you're doing. This is
444 hardcoded by the SPARC32 and LEON port.
446 This is the virtual address u-boot jumps to when booting the Linux
454 menu "Bus options (PCI etc.)"
464 bool "Sun Logical Domains support"
467 Say Y here is you want to support virtual devices via
471 bool "Support for PCI and PS/2 keyboard/mouse"
473 Find out whether your system includes a PCI bus. PCI is the name of
474 a bus system, i.e. the way the CPU talks to the other stuff inside
475 your box. If you say Y here, the kernel will include drivers and
476 infrastructure code to support PCI bus devices.
478 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
479 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
480 All of these platforms are extremely obscure, so say N if unsure.
483 def_bool PCI if SPARC64
490 depends on PCI && SPARC32 && !SPARC_LEON
495 depends on PCI && SPARC_LEON
499 bool "GRPCI2 Host Bridge Support"
503 Say Y here to include the GRPCI2 Host Bridge Driver.
505 source "drivers/pci/Kconfig"
507 source "drivers/pcmcia/Kconfig"
509 config SUN_OPENPROMFS
510 tristate "Openprom tree appears in /proc/openprom"
512 If you say Y, the OpenPROM device tree will be available as a
513 virtual file system, which you can mount to /proc/openprom by "mount
514 -t openpromfs none /proc/openprom".
516 To compile the /proc/openprom support as a module, choose M here: the
517 module will be called openpromfs.
519 Only choose N if you know in advance that you will not need to modify
520 OpenPROM settings on the running system.
526 depends on SPARC64 && PCI
530 menu "Executable file formats"
532 source "fs/Kconfig.binfmt"
538 select COMPAT_BINFMT_ELF
540 select ARCH_WANT_OLD_COMPAT_IPC
541 select COMPAT_OLD_SIGACTION
543 config SYSVIPC_COMPAT
545 depends on COMPAT && SYSVIPC
549 def_bool y if COMPAT && KEYS
555 source "drivers/Kconfig"
557 source "drivers/sbus/char/Kconfig"
561 source "arch/sparc/Kconfig.debug"
563 source "security/Kconfig"
565 source "crypto/Kconfig"