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_SYSCALL_WRAPPERS
66 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
67 select HAVE_DYNAMIC_FTRACE
68 select HAVE_FTRACE_MCOUNT_RECORD
69 select HAVE_SYSCALL_TRACEPOINTS
70 select HAVE_DEBUG_KMEMLEAK
74 select RTC_DRV_STARFIRE
75 select HAVE_PERF_EVENTS
76 select PERF_USE_VMALLOC
77 select IRQ_PREFLOW_FASTEOI
78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
79 select HAVE_C_RECORDMCOUNT
84 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
85 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
91 config STACKTRACE_SUPPORT
95 config LOCKDEP_SUPPORT
99 config HAVE_LATENCYTOP_SUPPORT
103 config ARCH_HIBERNATION_POSSIBLE
104 def_bool y if SPARC64
110 config HAVE_SETUP_PER_CPU_AREA
111 def_bool y if SPARC64
113 config NEED_PER_CPU_EMBED_FIRST_CHUNK
114 def_bool y if SPARC64
116 config NEED_PER_CPU_PAGE_FIRST_CHUNK
117 def_bool y if SPARC64
131 config NEED_DMA_MAP_STATE
134 config NEED_SG_DMA_LENGTH
137 config GENERIC_ISA_DMA
144 Generic GPIO API support
146 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
147 def_bool y if SPARC64
149 source "init/Kconfig"
151 source "kernel/Kconfig.freezer"
153 menu "Processor type and features"
156 bool "Symmetric multi-processing support"
158 This enables support for systems with more than one CPU. If you have
159 a system with only one CPU, say N. If you have a system with more
162 If you say N here, the kernel will run on single and multiprocessor
163 machines, but will use only one CPU of a multiprocessor machine. If
164 you say Y here, the kernel will run on many, but not all,
165 singleprocessor machines. On a singleprocessor machine, the kernel
166 will run faster if you say N here.
168 People using multiprocessor machines who say Y here should also say
169 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
170 Management" code will be disabled if you say Y here.
172 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
173 available at <http://www.tldp.org/docs.html#howto>.
175 If you don't know what to do here, say N.
178 int "Maximum number of CPUs"
180 range 2 32 if SPARC32
181 range 2 1024 if SPARC64
182 default 32 if SPARC32
183 default 64 if SPARC64
185 source kernel/Kconfig.hz
187 config RWSEM_GENERIC_SPINLOCK
191 config RWSEM_XCHGADD_ALGORITHM
195 config GENERIC_HWEIGHT
199 config GENERIC_CALIBRATE_DELAY
203 config ARCH_MAY_HAVE_PC_FDC
207 config EMULATED_CMPXCHG
211 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
212 is emulated, and therefore it is not completely atomic.
218 depends on SPARC32 && SMP
223 depends on SPARC64 && SMP
226 bool "Support for early boot text console"
230 Say Y here to enable a faster early framebuffer boot console.
233 bool "Enable seccomp to safely compute untrusted bytecode"
234 depends on SPARC64 && PROC_FS
237 This kernel feature is useful for number crunching applications
238 that may need to compute untrusted bytecode during their
239 execution. By using pipes or other transports made available to
240 the process as file descriptors supporting the read/write
241 syscalls, it's possible to isolate those applications in
242 their own address space using seccomp. Once seccomp is
243 enabled via /proc/<pid>/seccomp, it cannot be disabled
244 and the task is only allowed to execute a few safe syscalls
245 defined by each seccomp mode.
247 If unsure, say Y. Only embedded should say N here.
250 bool "Support for hot-pluggable CPUs"
251 depends on SPARC64 && SMP
254 Say Y here to experiment with turning CPUs off and on. CPUs
255 can be controlled through /sys/devices/system/cpu/cpu#.
256 Say N if you want to disable CPU hotplug.
259 source "drivers/cpufreq/Kconfig"
262 tristate "UltraSPARC-III CPU Frequency driver"
264 select CPU_FREQ_TABLE
266 This adds the CPUFreq driver for UltraSPARC-III processors.
268 For details, take a look at <file:Documentation/cpu-freq>.
273 tristate "UltraSPARC-IIe CPU Frequency driver"
275 select CPU_FREQ_TABLE
277 This adds the CPUFreq driver for UltraSPARC-IIe processors.
279 For details, take a look at <file:Documentation/cpu-freq>.
286 tristate "UltraSPARC-III Memory Controller driver"
290 This adds a driver for the UltraSPARC-III memory controller.
291 Loading this driver allows exact mnemonic strings to be
292 printed in the event of a memory error, so that the faulty DIMM
293 on the motherboard can be matched to the error.
295 If in doubt, say Y, as this information can be very useful.
297 # Global things across all Sun machines.
298 config GENERIC_LOCKBREAK
301 depends on SPARC64 && SMP && PREEMPT
305 depends on SPARC64 && SMP
310 depends on NEED_MULTIPLE_NODES
312 # Some NUMA nodes have memory ranges that span
313 # other nodes. Even though a pfn is valid and
314 # between a node's start and end pfns, it may not
315 # reside on that node. See memmap_init_zone()
317 config NODES_SPAN_OTHER_NODES
319 depends on NEED_MULTIPLE_NODES
321 config ARCH_SELECT_MEMORY_MODEL
322 def_bool y if SPARC64
324 config ARCH_SPARSEMEM_ENABLE
325 def_bool y if SPARC64
326 select SPARSEMEM_VMEMMAP_ENABLE
328 config ARCH_SPARSEMEM_DEFAULT
329 def_bool y if SPARC64
334 source "kernel/power/Kconfig"
338 bool "SMT (Hyperthreading) scheduler support"
339 depends on SPARC64 && SMP
342 SMT scheduler support improves the CPU scheduler's decision making
343 when dealing with SPARC cpus at a cost of slightly increased overhead
344 in some places. If unsure say N here.
347 bool "Multi-core scheduler support"
348 depends on SPARC64 && SMP
351 Multi-core scheduler support improves the CPU scheduler's decision
352 making when dealing with multi-core CPU chips at a cost of slightly
353 increased overhead in some places. If unsure say N here.
355 source "kernel/Kconfig.preempt"
358 bool "Default bootloader kernel arguments"
362 string "Initial kernel command string"
363 depends on CMDLINE_BOOL
364 default "console=ttyS0,9600 root=/dev/sda1"
366 Say Y here if you want to be able to pass default arguments to
367 the kernel. This will be overridden by the bootloader, if you
368 use one (such as SILO). This is most useful if you want to boot
369 a kernel from TFTP, and want default options to be available
370 with having them passed on the command line.
372 NOTE: This option WILL override the PROM bootargs setting!
378 Enable power management and CPU standby features on supported
382 tristate "Sun4m LED driver"
385 This driver toggles the front-panel LED on sun4m systems
386 in a user-specifiable manner. Its state can be probed
387 by reading /proc/led and its blinking mode can be changed
388 via writes to /proc/led
390 config SERIAL_CONSOLE
395 If you say Y here, it will be possible to use a serial port as the
396 system console (the system console is the device which receives all
397 kernel messages and warnings and which allows logins in single user
398 mode). This could be useful if some terminal or printer is connected
401 Even if you say Y here, the currently visible virtual console
402 (/dev/tty0) will still be used as the system console by default, but
403 you can alter that using a kernel command line option such as
404 "console=ttyS1". (Try "man bootparam" or see the documentation of
405 your boot loader (silo) about how to pass options to the kernel at
408 If you don't have a graphics card installed and you say Y here, the
409 kernel will automatically use the first serial line, /dev/ttyS0, as
415 bool "Sparc Leon processor family"
418 If you say Y here if you are running on a SPARC-LEON processor.
419 The LEON processor is a synthesizable VHDL model of the
420 SPARC-v8 standard. LEON is part of the GRLIB collection of
421 IP cores that are distributed under GPL. GRLIB can be downloaded
422 from www.gaisler.com. You can download a sparc-linux cross-compilation
423 toolchain at www.gaisler.com.
426 menu "U-Boot options"
428 config UBOOT_LOAD_ADDR
429 hex "uImage Load Address"
432 U-Boot kernel load address, the address in physical address space
433 where u-boot will place the Linux kernel before booting it.
434 This address is normally the base address of main memory + 0x4000.
436 config UBOOT_FLASH_ADDR
437 hex "uImage.o Load Address"
440 Optional setting only affecting the uImage.o ELF-image used to
441 download the uImage file to the target using a ELF-loader other than
442 U-Boot. It may for example be used to download an uImage to FLASH with
443 the GRMON utility before even starting u-boot.
445 config UBOOT_ENTRY_ADDR
446 hex "uImage Entry Address"
449 Do not change this unless you know what you're doing. This is
450 hardcoded by the SPARC32 and LEON port.
452 This is the virtual address u-boot jumps to when booting the Linux
460 menu "Bus options (PCI etc.)"
470 bool "Sun Logical Domains support"
473 Say Y here is you want to support virtual devices via
477 bool "Support for PCI and PS/2 keyboard/mouse"
479 Find out whether your system includes a PCI bus. PCI is the name of
480 a bus system, i.e. the way the CPU talks to the other stuff inside
481 your box. If you say Y here, the kernel will include drivers and
482 infrastructure code to support PCI bus devices.
484 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
485 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
486 All of these platforms are extremely obscure, so say N if unsure.
489 def_bool PCI if SPARC64
496 depends on PCI && SPARC32 && !SPARC_LEON
501 depends on PCI && SPARC_LEON
505 bool "GRPCI Host Bridge Support"
509 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
510 PCI host controller is typically found in GRLIB SPARC32/LEON
511 systems. The driver has one property (all_pci_errors) controlled
512 from the bootloader that makes the GRPCI to generate interrupts
513 on detected PCI Parity and System errors.
516 bool "GRPCI2 Host Bridge Support"
520 Say Y here to include the GRPCI2 Host Bridge Driver.
522 source "drivers/pci/Kconfig"
524 source "drivers/pcmcia/Kconfig"
526 config SUN_OPENPROMFS
527 tristate "Openprom tree appears in /proc/openprom"
529 If you say Y, the OpenPROM device tree will be available as a
530 virtual file system, which you can mount to /proc/openprom by "mount
531 -t openpromfs none /proc/openprom".
533 To compile the /proc/openprom support as a module, choose M here: the
534 module will be called openpromfs.
536 Only choose N if you know in advance that you will not need to modify
537 OpenPROM settings on the running system.
543 depends on SPARC64 && PCI
547 menu "Executable file formats"
549 source "fs/Kconfig.binfmt"
555 select COMPAT_BINFMT_ELF
557 select ARCH_WANT_OLD_COMPAT_IPC
558 select COMPAT_OLD_SIGACTION
560 config SYSVIPC_COMPAT
562 depends on COMPAT && SYSVIPC
566 def_bool y if COMPAT && KEYS
572 source "drivers/Kconfig"
574 source "drivers/sbus/char/Kconfig"
578 source "arch/sparc/Kconfig.debug"
580 source "security/Kconfig"
582 source "crypto/Kconfig"