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 if SPARC64
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
80 select ARCH_SUPPORTS_ATOMIC_RMW
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
141 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
142 def_bool y if SPARC64
144 source "init/Kconfig"
146 source "kernel/Kconfig.freezer"
148 menu "Processor type and features"
151 bool "Symmetric multi-processing support"
153 This enables support for systems with more than one CPU. If you have
154 a system with only one CPU, say N. If you have a system with more
157 If you say N here, the kernel will run on single and multiprocessor
158 machines, but will use only one CPU of a multiprocessor machine. If
159 you say Y here, the kernel will run on many, but not all,
160 singleprocessor machines. On a singleprocessor machine, the kernel
161 will run faster if you say N here.
163 People using multiprocessor machines who say Y here should also say
164 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
165 Management" code will be disabled if you say Y here.
167 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
168 available at <http://www.tldp.org/docs.html#howto>.
170 If you don't know what to do here, say N.
173 int "Maximum number of CPUs"
175 range 2 32 if SPARC32
176 range 2 1024 if SPARC64
177 default 32 if SPARC32
178 default 64 if SPARC64
180 source kernel/Kconfig.hz
182 config RWSEM_GENERIC_SPINLOCK
186 config RWSEM_XCHGADD_ALGORITHM
190 config GENERIC_HWEIGHT
194 config GENERIC_CALIBRATE_DELAY
198 config ARCH_MAY_HAVE_PC_FDC
202 config EMULATED_CMPXCHG
206 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
207 is emulated, and therefore it is not completely atomic.
213 depends on SPARC32 && SMP
218 depends on SPARC64 && SMP
221 bool "Support for early boot text console"
225 Say Y here to enable a faster early framebuffer boot console.
228 bool "Enable seccomp to safely compute untrusted bytecode"
229 depends on SPARC64 && PROC_FS
232 This kernel feature is useful for number crunching applications
233 that may need to compute untrusted bytecode during their
234 execution. By using pipes or other transports made available to
235 the process as file descriptors supporting the read/write
236 syscalls, it's possible to isolate those applications in
237 their own address space using seccomp. Once seccomp is
238 enabled via /proc/<pid>/seccomp, it cannot be disabled
239 and the task is only allowed to execute a few safe syscalls
240 defined by each seccomp mode.
242 If unsure, say Y. Only embedded should say N here.
245 bool "Support for hot-pluggable CPUs"
246 depends on SPARC64 && SMP
249 Say Y here to experiment with turning CPUs off and on. CPUs
250 can be controlled through /sys/devices/system/cpu/cpu#.
251 Say N if you want to disable CPU hotplug.
254 source "drivers/cpufreq/Kconfig"
258 tristate "UltraSPARC-III Memory Controller driver"
262 This adds a driver for the UltraSPARC-III memory controller.
263 Loading this driver allows exact mnemonic strings to be
264 printed in the event of a memory error, so that the faulty DIMM
265 on the motherboard can be matched to the error.
267 If in doubt, say Y, as this information can be very useful.
269 # Global things across all Sun machines.
270 config GENERIC_LOCKBREAK
273 depends on SPARC64 && SMP && PREEMPT
277 depends on SPARC64 && SMP
282 depends on NEED_MULTIPLE_NODES
284 # Some NUMA nodes have memory ranges that span
285 # other nodes. Even though a pfn is valid and
286 # between a node's start and end pfns, it may not
287 # reside on that node. See memmap_init_zone()
289 config NODES_SPAN_OTHER_NODES
291 depends on NEED_MULTIPLE_NODES
293 config ARCH_SELECT_MEMORY_MODEL
294 def_bool y if SPARC64
296 config ARCH_SPARSEMEM_ENABLE
297 def_bool y if SPARC64
298 select SPARSEMEM_VMEMMAP_ENABLE
300 config ARCH_SPARSEMEM_DEFAULT
301 def_bool y if SPARC64
306 source "kernel/power/Kconfig"
310 bool "SMT (Hyperthreading) scheduler support"
311 depends on SPARC64 && SMP
314 SMT scheduler support improves the CPU scheduler's decision making
315 when dealing with SPARC cpus at a cost of slightly increased overhead
316 in some places. If unsure say N here.
319 bool "Multi-core scheduler support"
320 depends on SPARC64 && SMP
323 Multi-core scheduler support improves the CPU scheduler's decision
324 making when dealing with multi-core CPU chips at a cost of slightly
325 increased overhead in some places. If unsure say N here.
327 source "kernel/Kconfig.preempt"
330 bool "Default bootloader kernel arguments"
334 string "Initial kernel command string"
335 depends on CMDLINE_BOOL
336 default "console=ttyS0,9600 root=/dev/sda1"
338 Say Y here if you want to be able to pass default arguments to
339 the kernel. This will be overridden by the bootloader, if you
340 use one (such as SILO). This is most useful if you want to boot
341 a kernel from TFTP, and want default options to be available
342 with having them passed on the command line.
344 NOTE: This option WILL override the PROM bootargs setting!
350 Enable power management and CPU standby features on supported
354 tristate "Sun4m LED driver"
357 This driver toggles the front-panel LED on sun4m systems
358 in a user-specifiable manner. Its state can be probed
359 by reading /proc/led and its blinking mode can be changed
360 via writes to /proc/led
362 config SERIAL_CONSOLE
367 If you say Y here, it will be possible to use a serial port as the
368 system console (the system console is the device which receives all
369 kernel messages and warnings and which allows logins in single user
370 mode). This could be useful if some terminal or printer is connected
373 Even if you say Y here, the currently visible virtual console
374 (/dev/tty0) will still be used as the system console by default, but
375 you can alter that using a kernel command line option such as
376 "console=ttyS1". (Try "man bootparam" or see the documentation of
377 your boot loader (silo) about how to pass options to the kernel at
380 If you don't have a graphics card installed and you say Y here, the
381 kernel will automatically use the first serial line, /dev/ttyS0, as
387 bool "Sparc Leon processor family"
389 select USB_EHCI_BIG_ENDIAN_MMIO
390 select USB_EHCI_BIG_ENDIAN_DESC
392 If you say Y here if you are running on a SPARC-LEON processor.
393 The LEON processor is a synthesizable VHDL model of the
394 SPARC-v8 standard. LEON is part of the GRLIB collection of
395 IP cores that are distributed under GPL. GRLIB can be downloaded
396 from www.gaisler.com. You can download a sparc-linux cross-compilation
397 toolchain at www.gaisler.com.
400 menu "U-Boot options"
402 config UBOOT_LOAD_ADDR
403 hex "uImage Load Address"
406 U-Boot kernel load address, the address in physical address space
407 where u-boot will place the Linux kernel before booting it.
408 This address is normally the base address of main memory + 0x4000.
410 config UBOOT_FLASH_ADDR
411 hex "uImage.o Load Address"
414 Optional setting only affecting the uImage.o ELF-image used to
415 download the uImage file to the target using a ELF-loader other than
416 U-Boot. It may for example be used to download an uImage to FLASH with
417 the GRMON utility before even starting u-boot.
419 config UBOOT_ENTRY_ADDR
420 hex "uImage Entry Address"
423 Do not change this unless you know what you're doing. This is
424 hardcoded by the SPARC32 and LEON port.
426 This is the virtual address u-boot jumps to when booting the Linux
434 menu "Bus options (PCI etc.)"
444 bool "Sun Logical Domains support"
447 Say Y here is you want to support virtual devices via
451 bool "Support for PCI and PS/2 keyboard/mouse"
453 Find out whether your system includes a PCI bus. PCI is the name of
454 a bus system, i.e. the way the CPU talks to the other stuff inside
455 your box. If you say Y here, the kernel will include drivers and
456 infrastructure code to support PCI bus devices.
458 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
459 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
460 All of these platforms are extremely obscure, so say N if unsure.
463 def_bool PCI if SPARC64
470 depends on PCI && SPARC32 && !SPARC_LEON
475 depends on PCI && SPARC_LEON
479 bool "GRPCI Host Bridge Support"
483 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
484 PCI host controller is typically found in GRLIB SPARC32/LEON
485 systems. The driver has one property (all_pci_errors) controlled
486 from the bootloader that makes the GRPCI to generate interrupts
487 on detected PCI Parity and System errors.
490 bool "GRPCI2 Host Bridge Support"
494 Say Y here to include the GRPCI2 Host Bridge Driver.
496 source "drivers/pci/Kconfig"
498 source "drivers/pcmcia/Kconfig"
500 config SUN_OPENPROMFS
501 tristate "Openprom tree appears in /proc/openprom"
503 If you say Y, the OpenPROM device tree will be available as a
504 virtual file system, which you can mount to /proc/openprom by "mount
505 -t openpromfs none /proc/openprom".
507 To compile the /proc/openprom support as a module, choose M here: the
508 module will be called openpromfs.
510 Only choose N if you know in advance that you will not need to modify
511 OpenPROM settings on the running system.
517 depends on SPARC64 && PCI
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"