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
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL
30 select HAVE_GENERIC_HARDIRQS
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_IPC_PARSE_VERSION
33 select USE_GENERIC_SMP_HELPERS if SMP
34 select GENERIC_PCI_IOMAP
35 select HAVE_NMI_WATCHDOG if SPARC64
37 select HAVE_DEBUG_BUGVERBOSE
38 select GENERIC_SMP_IDLE_THREAD
39 select GENERIC_CMOS_UPDATE
40 select GENERIC_CLOCKEVENTS
41 select GENERIC_STRNCPY_FROM_USER
42 select GENERIC_STRNLEN_USER
43 select MODULES_USE_ELF_RELA
44 select ODD_RT_SIGACTION
45 select GENERIC_SIGALTSTACK
46 select GENERIC_COMPAT_RT_SIGQUEUEINFO
47 select GENERIC_COMPAT_RT_SIGPROCMASK
48 select GENERIC_COMPAT_RT_SIGPENDING
52 select GENERIC_ATOMIC64
58 select ARCH_SUPPORTS_MSI
59 select HAVE_FUNCTION_TRACER
60 select HAVE_FUNCTION_GRAPH_TRACER
61 select HAVE_FUNCTION_GRAPH_FP_TEST
62 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
63 select HAVE_KRETPROBES
65 select HAVE_RCU_TABLE_FREE if SMP
67 select HAVE_MEMBLOCK_NODE_MAP
68 select HAVE_SYSCALL_WRAPPERS
69 select HAVE_DYNAMIC_FTRACE
70 select HAVE_FTRACE_MCOUNT_RECORD
71 select HAVE_SYSCALL_TRACEPOINTS
72 select HAVE_DEBUG_KMEMLEAK
76 select RTC_DRV_STARFIRE
77 select HAVE_PERF_EVENTS
78 select PERF_USE_VMALLOC
79 select IRQ_PREFLOW_FASTEOI
80 select ARCH_HAVE_NMI_SAFE_CMPXCHG
81 select HAVE_C_RECORDMCOUNT
86 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
87 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
89 # CONFIG_BITS can be used at source level to get 32/64 bits
99 config STACKTRACE_SUPPORT
103 config LOCKDEP_SUPPORT
107 config HAVE_LATENCYTOP_SUPPORT
115 config HAVE_SETUP_PER_CPU_AREA
116 def_bool y if SPARC64
118 config NEED_PER_CPU_EMBED_FIRST_CHUNK
119 def_bool y if SPARC64
121 config NEED_PER_CPU_PAGE_FIRST_CHUNK
122 def_bool y if SPARC64
136 config NEED_DMA_MAP_STATE
139 config NEED_SG_DMA_LENGTH
142 config GENERIC_ISA_DMA
149 Generic GPIO API support
151 config ARCH_NO_VIRT_TO_BUS
154 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
155 def_bool y if SPARC64
157 source "init/Kconfig"
159 source "kernel/Kconfig.freezer"
161 menu "Processor type and features"
164 bool "Symmetric multi-processing support"
166 This enables support for systems with more than one CPU. If you have
167 a system with only one CPU, say N. If you have a system with more
170 If you say N here, the kernel will run on single and multiprocessor
171 machines, but will use only one CPU of a multiprocessor machine. If
172 you say Y here, the kernel will run on many, but not all,
173 singleprocessor machines. On a singleprocessor machine, the kernel
174 will run faster if you say N here.
176 People using multiprocessor machines who say Y here should also say
177 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
178 Management" code will be disabled if you say Y here.
180 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
181 available at <http://www.tldp.org/docs.html#howto>.
183 If you don't know what to do here, say N.
186 int "Maximum number of CPUs"
188 range 2 32 if SPARC32
189 range 2 1024 if SPARC64
190 default 32 if SPARC32
191 default 64 if SPARC64
193 source kernel/Kconfig.hz
195 config RWSEM_GENERIC_SPINLOCK
199 config RWSEM_XCHGADD_ALGORITHM
203 config GENERIC_HWEIGHT
205 default y if !ULTRA_HAS_POPULATION_COUNT
207 config GENERIC_CALIBRATE_DELAY
211 config ARCH_MAY_HAVE_PC_FDC
215 config EMULATED_CMPXCHG
219 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
220 is emulated, and therefore it is not completely atomic.
226 depends on SPARC32 && SMP
231 depends on SPARC64 && SMP
234 bool "Support for early boot text console"
238 Say Y here to enable a faster early framebuffer boot console.
241 bool "Enable seccomp to safely compute untrusted bytecode"
242 depends on SPARC64 && PROC_FS
245 This kernel feature is useful for number crunching applications
246 that may need to compute untrusted bytecode during their
247 execution. By using pipes or other transports made available to
248 the process as file descriptors supporting the read/write
249 syscalls, it's possible to isolate those applications in
250 their own address space using seccomp. Once seccomp is
251 enabled via /proc/<pid>/seccomp, it cannot be disabled
252 and the task is only allowed to execute a few safe syscalls
253 defined by each seccomp mode.
255 If unsure, say Y. Only embedded should say N here.
258 bool "Support for hot-pluggable CPUs"
259 depends on SPARC64 && SMP
262 Say Y here to experiment with turning CPUs off and on. CPUs
263 can be controlled through /sys/devices/system/cpu/cpu#.
264 Say N if you want to disable CPU hotplug.
267 source "drivers/cpufreq/Kconfig"
270 tristate "UltraSPARC-III CPU Frequency driver"
272 select CPU_FREQ_TABLE
274 This adds the CPUFreq driver for UltraSPARC-III processors.
276 For details, take a look at <file:Documentation/cpu-freq>.
281 tristate "UltraSPARC-IIe CPU Frequency driver"
283 select CPU_FREQ_TABLE
285 This adds the CPUFreq driver for UltraSPARC-IIe processors.
287 For details, take a look at <file:Documentation/cpu-freq>.
294 tristate "UltraSPARC-III Memory Controller driver"
298 This adds a driver for the UltraSPARC-III memory controller.
299 Loading this driver allows exact mnemonic strings to be
300 printed in the event of a memory error, so that the faulty DIMM
301 on the motherboard can be matched to the error.
303 If in doubt, say Y, as this information can be very useful.
305 # Global things across all Sun machines.
306 config GENERIC_LOCKBREAK
309 depends on SPARC64 && SMP && PREEMPT
313 depends on SPARC64 && SMP
318 depends on NEED_MULTIPLE_NODES
320 # Some NUMA nodes have memory ranges that span
321 # other nodes. Even though a pfn is valid and
322 # between a node's start and end pfns, it may not
323 # reside on that node. See memmap_init_zone()
325 config NODES_SPAN_OTHER_NODES
327 depends on NEED_MULTIPLE_NODES
329 config ARCH_SELECT_MEMORY_MODEL
330 def_bool y if SPARC64
332 config ARCH_SPARSEMEM_ENABLE
333 def_bool y if SPARC64
334 select SPARSEMEM_VMEMMAP_ENABLE
336 config ARCH_SPARSEMEM_DEFAULT
337 def_bool y if SPARC64
342 bool "SMT (Hyperthreading) scheduler support"
343 depends on SPARC64 && SMP
346 SMT scheduler support improves the CPU scheduler's decision making
347 when dealing with SPARC cpus at a cost of slightly increased overhead
348 in some places. If unsure say N here.
351 bool "Multi-core scheduler support"
352 depends on SPARC64 && SMP
355 Multi-core scheduler support improves the CPU scheduler's decision
356 making when dealing with multi-core CPU chips at a cost of slightly
357 increased overhead in some places. If unsure say N here.
359 source "kernel/Kconfig.preempt"
362 bool "Default bootloader kernel arguments"
366 string "Initial kernel command string"
367 depends on CMDLINE_BOOL
368 default "console=ttyS0,9600 root=/dev/sda1"
370 Say Y here if you want to be able to pass default arguments to
371 the kernel. This will be overridden by the bootloader, if you
372 use one (such as SILO). This is most useful if you want to boot
373 a kernel from TFTP, and want default options to be available
374 with having them passed on the command line.
376 NOTE: This option WILL override the PROM bootargs setting!
382 Enable power management and CPU standby features on supported
386 tristate "Sun4m LED driver"
389 This driver toggles the front-panel LED on sun4m systems
390 in a user-specifiable manner. Its state can be probed
391 by reading /proc/led and its blinking mode can be changed
392 via writes to /proc/led
394 config SERIAL_CONSOLE
399 If you say Y here, it will be possible to use a serial port as the
400 system console (the system console is the device which receives all
401 kernel messages and warnings and which allows logins in single user
402 mode). This could be useful if some terminal or printer is connected
405 Even if you say Y here, the currently visible virtual console
406 (/dev/tty0) will still be used as the system console by default, but
407 you can alter that using a kernel command line option such as
408 "console=ttyS1". (Try "man bootparam" or see the documentation of
409 your boot loader (silo) about how to pass options to the kernel at
412 If you don't have a graphics card installed and you say Y here, the
413 kernel will automatically use the first serial line, /dev/ttyS0, as
419 bool "Sparc Leon processor family"
422 If you say Y here if you are running on a SPARC-LEON processor.
423 The LEON processor is a synthesizable VHDL model of the
424 SPARC-v8 standard. LEON is part of the GRLIB collection of
425 IP cores that are distributed under GPL. GRLIB can be downloaded
426 from www.gaisler.com. You can download a sparc-linux cross-compilation
427 toolchain at www.gaisler.com.
430 menu "U-Boot options"
432 config UBOOT_LOAD_ADDR
433 hex "uImage Load Address"
436 U-Boot kernel load address, the address in physical address space
437 where u-boot will place the Linux kernel before booting it.
438 This address is normally the base address of main memory + 0x4000.
440 config UBOOT_FLASH_ADDR
441 hex "uImage.o Load Address"
444 Optional setting only affecting the uImage.o ELF-image used to
445 download the uImage file to the target using a ELF-loader other than
446 U-Boot. It may for example be used to download an uImage to FLASH with
447 the GRMON utility before even starting u-boot.
449 config UBOOT_ENTRY_ADDR
450 hex "uImage Entry Address"
453 Do not change this unless you know what you're doing. This is
454 hardcoded by the SPARC32 and LEON port.
456 This is the virtual address u-boot jumps to when booting the Linux
464 menu "Bus options (PCI etc.)"
474 bool "Sun Logical Domains support"
477 Say Y here is you want to support virtual devices via
481 bool "Support for PCI and PS/2 keyboard/mouse"
483 Find out whether your system includes a PCI bus. PCI is the name of
484 a bus system, i.e. the way the CPU talks to the other stuff inside
485 your box. If you say Y here, the kernel will include drivers and
486 infrastructure code to support PCI bus devices.
488 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
489 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
490 All of these platforms are extremely obscure, so say N if unsure.
493 def_bool PCI if SPARC64
500 depends on PCI && SPARC32 && !SPARC_LEON
505 depends on PCI && SPARC_LEON
509 bool "GRPCI2 Host Bridge Support"
513 Say Y here to include the GRPCI2 Host Bridge Driver.
515 source "drivers/pci/Kconfig"
517 source "drivers/pcmcia/Kconfig"
519 config SUN_OPENPROMFS
520 tristate "Openprom tree appears in /proc/openprom"
522 If you say Y, the OpenPROM device tree will be available as a
523 virtual file system, which you can mount to /proc/openprom by "mount
524 -t openpromfs none /proc/openprom".
526 To compile the /proc/openprom support as a module, choose M here: the
527 module will be called openpromfs.
529 Only choose N if you know in advance that you will not need to modify
530 OpenPROM settings on the running system.
536 depends on SPARC64 && PCI
540 menu "Executable file formats"
542 source "fs/Kconfig.binfmt"
548 select COMPAT_BINFMT_ELF
550 select ARCH_WANT_OLD_COMPAT_IPC
552 config SYSVIPC_COMPAT
554 depends on COMPAT && SYSVIPC
558 def_bool y if COMPAT && KEYS
564 source "drivers/Kconfig"
566 source "drivers/sbus/char/Kconfig"
570 source "arch/sparc/Kconfig.debug"
572 source "security/Kconfig"
574 source "crypto/Kconfig"