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 GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
34 select HAVE_DEBUG_BUGVERBOSE
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_CMOS_UPDATE
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
40 select MODULES_USE_ELF_RELA
41 select ODD_RT_SIGACTION
46 select GENERIC_ATOMIC64
53 select HAVE_FUNCTION_TRACER
54 select HAVE_FUNCTION_GRAPH_TRACER
55 select HAVE_FUNCTION_GRAPH_FP_TEST
56 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
57 select HAVE_KRETPROBES
59 select HAVE_RCU_TABLE_FREE if SMP
61 select HAVE_MEMBLOCK_NODE_MAP
62 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
63 select HAVE_DYNAMIC_FTRACE
64 select HAVE_FTRACE_MCOUNT_RECORD
65 select HAVE_SYSCALL_TRACEPOINTS
66 select HAVE_DEBUG_KMEMLEAK
70 select RTC_DRV_STARFIRE
71 select HAVE_PERF_EVENTS
72 select PERF_USE_VMALLOC
73 select IRQ_PREFLOW_FASTEOI
74 select ARCH_HAVE_NMI_SAFE_CMPXCHG
75 select HAVE_C_RECORDMCOUNT
80 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
81 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
87 config STACKTRACE_SUPPORT
91 config LOCKDEP_SUPPORT
95 config HAVE_LATENCYTOP_SUPPORT
99 config ARCH_HIBERNATION_POSSIBLE
100 def_bool y if SPARC64
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
137 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
138 def_bool y if SPARC64
140 source "init/Kconfig"
142 source "kernel/Kconfig.freezer"
144 menu "Processor type and features"
147 bool "Symmetric multi-processing support"
149 This enables support for systems with more than one CPU. If you have
150 a system with only one CPU, say N. If you have a system with more
153 If you say N here, the kernel will run on single and multiprocessor
154 machines, but will use only one CPU of a multiprocessor machine. If
155 you say Y here, the kernel will run on many, but not all,
156 singleprocessor machines. On a singleprocessor machine, the kernel
157 will run faster if you say N here.
159 People using multiprocessor machines who say Y here should also say
160 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
161 Management" code will be disabled if you say Y here.
163 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
164 available at <http://www.tldp.org/docs.html#howto>.
166 If you don't know what to do here, say N.
169 int "Maximum number of CPUs"
171 range 2 32 if SPARC32
172 range 2 1024 if SPARC64
173 default 32 if SPARC32
174 default 64 if SPARC64
176 source kernel/Kconfig.hz
178 config RWSEM_GENERIC_SPINLOCK
182 config RWSEM_XCHGADD_ALGORITHM
186 config GENERIC_HWEIGHT
190 config GENERIC_CALIBRATE_DELAY
194 config ARCH_MAY_HAVE_PC_FDC
198 config EMULATED_CMPXCHG
202 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
203 is emulated, and therefore it is not completely atomic.
209 depends on SPARC32 && SMP
214 depends on SPARC64 && SMP
217 bool "Support for early boot text console"
221 Say Y here to enable a faster early framebuffer boot console.
224 bool "Enable seccomp to safely compute untrusted bytecode"
225 depends on SPARC64 && PROC_FS
228 This kernel feature is useful for number crunching applications
229 that may need to compute untrusted bytecode during their
230 execution. By using pipes or other transports made available to
231 the process as file descriptors supporting the read/write
232 syscalls, it's possible to isolate those applications in
233 their own address space using seccomp. Once seccomp is
234 enabled via /proc/<pid>/seccomp, it cannot be disabled
235 and the task is only allowed to execute a few safe syscalls
236 defined by each seccomp mode.
238 If unsure, say Y. Only embedded should say N here.
241 bool "Support for hot-pluggable CPUs"
242 depends on SPARC64 && SMP
244 Say Y here to experiment with turning CPUs off and on. CPUs
245 can be controlled through /sys/devices/system/cpu/cpu#.
246 Say N if you want to disable CPU hotplug.
249 source "drivers/cpufreq/Kconfig"
253 tristate "UltraSPARC-III Memory Controller driver"
257 This adds a driver for the UltraSPARC-III memory controller.
258 Loading this driver allows exact mnemonic strings to be
259 printed in the event of a memory error, so that the faulty DIMM
260 on the motherboard can be matched to the error.
262 If in doubt, say Y, as this information can be very useful.
264 # Global things across all Sun machines.
265 config GENERIC_LOCKBREAK
268 depends on SPARC64 && SMP && PREEMPT
272 depends on SPARC64 && SMP
277 depends on NEED_MULTIPLE_NODES
279 # Some NUMA nodes have memory ranges that span
280 # other nodes. Even though a pfn is valid and
281 # between a node's start and end pfns, it may not
282 # reside on that node. See memmap_init_zone()
284 config NODES_SPAN_OTHER_NODES
286 depends on NEED_MULTIPLE_NODES
288 config ARCH_SELECT_MEMORY_MODEL
289 def_bool y if SPARC64
291 config ARCH_SPARSEMEM_ENABLE
292 def_bool y if SPARC64
293 select SPARSEMEM_VMEMMAP_ENABLE
295 config ARCH_SPARSEMEM_DEFAULT
296 def_bool y if SPARC64
301 source "kernel/power/Kconfig"
305 bool "SMT (Hyperthreading) scheduler support"
306 depends on SPARC64 && SMP
309 SMT scheduler support improves the CPU scheduler's decision making
310 when dealing with SPARC cpus at a cost of slightly increased overhead
311 in some places. If unsure say N here.
314 bool "Multi-core scheduler support"
315 depends on SPARC64 && SMP
318 Multi-core scheduler support improves the CPU scheduler's decision
319 making when dealing with multi-core CPU chips at a cost of slightly
320 increased overhead in some places. If unsure say N here.
322 source "kernel/Kconfig.preempt"
325 bool "Default bootloader kernel arguments"
329 string "Initial kernel command string"
330 depends on CMDLINE_BOOL
331 default "console=ttyS0,9600 root=/dev/sda1"
333 Say Y here if you want to be able to pass default arguments to
334 the kernel. This will be overridden by the bootloader, if you
335 use one (such as SILO). This is most useful if you want to boot
336 a kernel from TFTP, and want default options to be available
337 with having them passed on the command line.
339 NOTE: This option WILL override the PROM bootargs setting!
345 Enable power management and CPU standby features on supported
349 tristate "Sun4m LED driver"
352 This driver toggles the front-panel LED on sun4m systems
353 in a user-specifiable manner. Its state can be probed
354 by reading /proc/led and its blinking mode can be changed
355 via writes to /proc/led
357 config SERIAL_CONSOLE
362 If you say Y here, it will be possible to use a serial port as the
363 system console (the system console is the device which receives all
364 kernel messages and warnings and which allows logins in single user
365 mode). This could be useful if some terminal or printer is connected
368 Even if you say Y here, the currently visible virtual console
369 (/dev/tty0) will still be used as the system console by default, but
370 you can alter that using a kernel command line option such as
371 "console=ttyS1". (Try "man bootparam" or see the documentation of
372 your boot loader (silo) about how to pass options to the kernel at
375 If you don't have a graphics card installed and you say Y here, the
376 kernel will automatically use the first serial line, /dev/ttyS0, as
382 bool "Sparc Leon processor family"
384 select USB_EHCI_BIG_ENDIAN_MMIO
385 select USB_EHCI_BIG_ENDIAN_DESC
387 If you say Y here if you are running on a SPARC-LEON processor.
388 The LEON processor is a synthesizable VHDL model of the
389 SPARC-v8 standard. LEON is part of the GRLIB collection of
390 IP cores that are distributed under GPL. GRLIB can be downloaded
391 from www.gaisler.com. You can download a sparc-linux cross-compilation
392 toolchain at www.gaisler.com.
395 menu "U-Boot options"
397 config UBOOT_LOAD_ADDR
398 hex "uImage Load Address"
401 U-Boot kernel load address, the address in physical address space
402 where u-boot will place the Linux kernel before booting it.
403 This address is normally the base address of main memory + 0x4000.
405 config UBOOT_FLASH_ADDR
406 hex "uImage.o Load Address"
409 Optional setting only affecting the uImage.o ELF-image used to
410 download the uImage file to the target using a ELF-loader other than
411 U-Boot. It may for example be used to download an uImage to FLASH with
412 the GRMON utility before even starting u-boot.
414 config UBOOT_ENTRY_ADDR
415 hex "uImage Entry Address"
418 Do not change this unless you know what you're doing. This is
419 hardcoded by the SPARC32 and LEON port.
421 This is the virtual address u-boot jumps to when booting the Linux
429 menu "Bus options (PCI etc.)"
439 bool "Sun Logical Domains support"
442 Say Y here is you want to support virtual devices via
446 bool "Support for PCI and PS/2 keyboard/mouse"
448 Find out whether your system includes a PCI bus. PCI is the name of
449 a bus system, i.e. the way the CPU talks to the other stuff inside
450 your box. If you say Y here, the kernel will include drivers and
451 infrastructure code to support PCI bus devices.
453 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
454 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
455 All of these platforms are extremely obscure, so say N if unsure.
458 def_bool PCI if SPARC64
465 depends on PCI && SPARC32 && !SPARC_LEON
470 depends on PCI && SPARC_LEON
474 bool "GRPCI Host Bridge Support"
478 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
479 PCI host controller is typically found in GRLIB SPARC32/LEON
480 systems. The driver has one property (all_pci_errors) controlled
481 from the bootloader that makes the GRPCI to generate interrupts
482 on detected PCI Parity and System errors.
485 bool "GRPCI2 Host Bridge Support"
489 Say Y here to include the GRPCI2 Host Bridge Driver.
491 source "drivers/pci/Kconfig"
493 source "drivers/pcmcia/Kconfig"
495 config SUN_OPENPROMFS
496 tristate "Openprom tree appears in /proc/openprom"
498 If you say Y, the OpenPROM device tree will be available as a
499 virtual file system, which you can mount to /proc/openprom by "mount
500 -t openpromfs none /proc/openprom".
502 To compile the /proc/openprom support as a module, choose M here: the
503 module will be called openpromfs.
505 Only choose N if you know in advance that you will not need to modify
506 OpenPROM settings on the running system.
512 depends on SPARC64 && PCI
514 config SPARC64_PCI_MSI
517 depends on SPARC64_PCI && PCI_MSI
521 menu "Executable file formats"
523 source "fs/Kconfig.binfmt"
529 select COMPAT_BINFMT_ELF
531 select ARCH_WANT_OLD_COMPAT_IPC
532 select COMPAT_OLD_SIGACTION
534 config SYSVIPC_COMPAT
536 depends on COMPAT && SYSVIPC
540 def_bool y if COMPAT && KEYS
546 source "drivers/Kconfig"
548 source "drivers/sbus/char/Kconfig"
552 source "arch/sparc/Kconfig.debug"
554 source "security/Kconfig"
556 source "crypto/Kconfig"