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_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
83 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
84 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
90 config STACKTRACE_SUPPORT
94 config LOCKDEP_SUPPORT
98 config HAVE_LATENCYTOP_SUPPORT
102 config ARCH_HIBERNATION_POSSIBLE
103 def_bool y if SPARC64
109 config HAVE_SETUP_PER_CPU_AREA
110 def_bool y if SPARC64
112 config NEED_PER_CPU_EMBED_FIRST_CHUNK
113 def_bool y if SPARC64
115 config NEED_PER_CPU_PAGE_FIRST_CHUNK
116 def_bool y if SPARC64
130 config NEED_DMA_MAP_STATE
133 config NEED_SG_DMA_LENGTH
136 config GENERIC_ISA_DMA
140 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
141 def_bool y if SPARC64
143 source "init/Kconfig"
145 source "kernel/Kconfig.freezer"
147 menu "Processor type and features"
150 bool "Symmetric multi-processing support"
152 This enables support for systems with more than one CPU. If you have
153 a system with only one CPU, say N. If you have a system with more
156 If you say N here, the kernel will run on single and multiprocessor
157 machines, but will use only one CPU of a multiprocessor machine. If
158 you say Y here, the kernel will run on many, but not all,
159 singleprocessor machines. On a singleprocessor machine, the kernel
160 will run faster if you say N here.
162 People using multiprocessor machines who say Y here should also say
163 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
164 Management" code will be disabled if you say Y here.
166 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
167 available at <http://www.tldp.org/docs.html#howto>.
169 If you don't know what to do here, say N.
172 int "Maximum number of CPUs"
174 range 2 32 if SPARC32
175 range 2 1024 if SPARC64
176 default 32 if SPARC32
177 default 64 if SPARC64
179 source kernel/Kconfig.hz
181 config RWSEM_GENERIC_SPINLOCK
185 config RWSEM_XCHGADD_ALGORITHM
189 config GENERIC_HWEIGHT
193 config GENERIC_CALIBRATE_DELAY
197 config ARCH_MAY_HAVE_PC_FDC
201 config EMULATED_CMPXCHG
205 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
206 is emulated, and therefore it is not completely atomic.
212 depends on SPARC32 && SMP
217 depends on SPARC64 && SMP
220 bool "Support for early boot text console"
224 Say Y here to enable a faster early framebuffer boot console.
227 bool "Enable seccomp to safely compute untrusted bytecode"
228 depends on SPARC64 && PROC_FS
231 This kernel feature is useful for number crunching applications
232 that may need to compute untrusted bytecode during their
233 execution. By using pipes or other transports made available to
234 the process as file descriptors supporting the read/write
235 syscalls, it's possible to isolate those applications in
236 their own address space using seccomp. Once seccomp is
237 enabled via /proc/<pid>/seccomp, it cannot be disabled
238 and the task is only allowed to execute a few safe syscalls
239 defined by each seccomp mode.
241 If unsure, say Y. Only embedded should say N here.
244 bool "Support for hot-pluggable CPUs"
245 depends on SPARC64 && SMP
247 Say Y here to experiment with turning CPUs off and on. CPUs
248 can be controlled through /sys/devices/system/cpu/cpu#.
249 Say N if you want to disable CPU hotplug.
252 source "drivers/cpufreq/Kconfig"
256 tristate "UltraSPARC-III Memory Controller driver"
260 This adds a driver for the UltraSPARC-III memory controller.
261 Loading this driver allows exact mnemonic strings to be
262 printed in the event of a memory error, so that the faulty DIMM
263 on the motherboard can be matched to the error.
265 If in doubt, say Y, as this information can be very useful.
267 # Global things across all Sun machines.
268 config GENERIC_LOCKBREAK
271 depends on SPARC64 && SMP && PREEMPT
275 depends on SPARC64 && SMP
280 depends on NEED_MULTIPLE_NODES
282 # Some NUMA nodes have memory ranges that span
283 # other nodes. Even though a pfn is valid and
284 # between a node's start and end pfns, it may not
285 # reside on that node. See memmap_init_zone()
287 config NODES_SPAN_OTHER_NODES
289 depends on NEED_MULTIPLE_NODES
291 config ARCH_SELECT_MEMORY_MODEL
292 def_bool y if SPARC64
294 config ARCH_SPARSEMEM_ENABLE
295 def_bool y if SPARC64
296 select SPARSEMEM_VMEMMAP_ENABLE
298 config ARCH_SPARSEMEM_DEFAULT
299 def_bool y if SPARC64
304 source "kernel/power/Kconfig"
308 bool "SMT (Hyperthreading) scheduler support"
309 depends on SPARC64 && SMP
312 SMT scheduler support improves the CPU scheduler's decision making
313 when dealing with SPARC cpus at a cost of slightly increased overhead
314 in some places. If unsure say N here.
317 bool "Multi-core scheduler support"
318 depends on SPARC64 && SMP
321 Multi-core scheduler support improves the CPU scheduler's decision
322 making when dealing with multi-core CPU chips at a cost of slightly
323 increased overhead in some places. If unsure say N here.
325 source "kernel/Kconfig.preempt"
328 bool "Default bootloader kernel arguments"
332 string "Initial kernel command string"
333 depends on CMDLINE_BOOL
334 default "console=ttyS0,9600 root=/dev/sda1"
336 Say Y here if you want to be able to pass default arguments to
337 the kernel. This will be overridden by the bootloader, if you
338 use one (such as SILO). This is most useful if you want to boot
339 a kernel from TFTP, and want default options to be available
340 with having them passed on the command line.
342 NOTE: This option WILL override the PROM bootargs setting!
348 Enable power management and CPU standby features on supported
352 tristate "Sun4m LED driver"
355 This driver toggles the front-panel LED on sun4m systems
356 in a user-specifiable manner. Its state can be probed
357 by reading /proc/led and its blinking mode can be changed
358 via writes to /proc/led
360 config SERIAL_CONSOLE
365 If you say Y here, it will be possible to use a serial port as the
366 system console (the system console is the device which receives all
367 kernel messages and warnings and which allows logins in single user
368 mode). This could be useful if some terminal or printer is connected
371 Even if you say Y here, the currently visible virtual console
372 (/dev/tty0) will still be used as the system console by default, but
373 you can alter that using a kernel command line option such as
374 "console=ttyS1". (Try "man bootparam" or see the documentation of
375 your boot loader (silo) about how to pass options to the kernel at
378 If you don't have a graphics card installed and you say Y here, the
379 kernel will automatically use the first serial line, /dev/ttyS0, as
385 bool "Sparc Leon processor family"
387 select USB_EHCI_BIG_ENDIAN_MMIO
388 select USB_EHCI_BIG_ENDIAN_DESC
390 If you say Y here if you are running on a SPARC-LEON processor.
391 The LEON processor is a synthesizable VHDL model of the
392 SPARC-v8 standard. LEON is part of the GRLIB collection of
393 IP cores that are distributed under GPL. GRLIB can be downloaded
394 from www.gaisler.com. You can download a sparc-linux cross-compilation
395 toolchain at www.gaisler.com.
398 menu "U-Boot options"
400 config UBOOT_LOAD_ADDR
401 hex "uImage Load Address"
404 U-Boot kernel load address, the address in physical address space
405 where u-boot will place the Linux kernel before booting it.
406 This address is normally the base address of main memory + 0x4000.
408 config UBOOT_FLASH_ADDR
409 hex "uImage.o Load Address"
412 Optional setting only affecting the uImage.o ELF-image used to
413 download the uImage file to the target using a ELF-loader other than
414 U-Boot. It may for example be used to download an uImage to FLASH with
415 the GRMON utility before even starting u-boot.
417 config UBOOT_ENTRY_ADDR
418 hex "uImage Entry Address"
421 Do not change this unless you know what you're doing. This is
422 hardcoded by the SPARC32 and LEON port.
424 This is the virtual address u-boot jumps to when booting the Linux
432 menu "Bus options (PCI etc.)"
442 bool "Sun Logical Domains support"
445 Say Y here is you want to support virtual devices via
449 bool "Support for PCI and PS/2 keyboard/mouse"
451 Find out whether your system includes a PCI bus. PCI is the name of
452 a bus system, i.e. the way the CPU talks to the other stuff inside
453 your box. If you say Y here, the kernel will include drivers and
454 infrastructure code to support PCI bus devices.
456 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
457 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
458 All of these platforms are extremely obscure, so say N if unsure.
461 def_bool PCI if SPARC64
468 depends on PCI && SPARC32 && !SPARC_LEON
473 depends on PCI && SPARC_LEON
477 bool "GRPCI Host Bridge Support"
481 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
482 PCI host controller is typically found in GRLIB SPARC32/LEON
483 systems. The driver has one property (all_pci_errors) controlled
484 from the bootloader that makes the GRPCI to generate interrupts
485 on detected PCI Parity and System errors.
488 bool "GRPCI2 Host Bridge Support"
492 Say Y here to include the GRPCI2 Host Bridge Driver.
494 source "drivers/pci/Kconfig"
496 source "drivers/pcmcia/Kconfig"
498 config SUN_OPENPROMFS
499 tristate "Openprom tree appears in /proc/openprom"
501 If you say Y, the OpenPROM device tree will be available as a
502 virtual file system, which you can mount to /proc/openprom by "mount
503 -t openpromfs none /proc/openprom".
505 To compile the /proc/openprom support as a module, choose M here: the
506 module will be called openpromfs.
508 Only choose N if you know in advance that you will not need to modify
509 OpenPROM settings on the running system.
515 depends on SPARC64 && PCI
519 menu "Executable file formats"
521 source "fs/Kconfig.binfmt"
527 select COMPAT_BINFMT_ELF
529 select ARCH_WANT_OLD_COMPAT_IPC
530 select COMPAT_OLD_SIGACTION
532 config SYSVIPC_COMPAT
534 depends on COMPAT && SYSVIPC
538 def_bool y if COMPAT && KEYS
544 source "drivers/Kconfig"
546 source "drivers/sbus/char/Kconfig"
550 source "arch/sparc/Kconfig.debug"
552 source "security/Kconfig"
554 source "crypto/Kconfig"