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
15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_MIGHT_HAVE_PC_SERIO
21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select HAVE_ARCH_TRACEHOOK
23 select SYSCTL_EXCEPTION_TRACE
24 select ARCH_WANT_OPTIONAL_GPIOLIB
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
29 select HAVE_DMA_API_DEBUG
30 select HAVE_ARCH_JUMP_LABEL if SPARC64
31 select GENERIC_IRQ_SHOW
32 select ARCH_WANT_IPC_PARSE_VERSION
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
45 select ARCH_HAS_SG_CHAIN
49 select GENERIC_ATOMIC64
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_KRETPROBES
61 select HAVE_RCU_TABLE_FREE if SMP
63 select HAVE_MEMBLOCK_NODE_MAP
64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_CONTEXT_TRACKING
69 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
81 select HAVE_ARCH_AUDITSYSCALL
82 select ARCH_SUPPORTS_ATOMIC_RMW
86 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
87 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
93 config STACKTRACE_SUPPORT
97 config LOCKDEP_SUPPORT
101 config HAVE_LATENCYTOP_SUPPORT
105 config ARCH_HIBERNATION_POSSIBLE
106 def_bool y if SPARC64
112 config HAVE_SETUP_PER_CPU_AREA
113 def_bool y if SPARC64
115 config NEED_PER_CPU_EMBED_FIRST_CHUNK
116 def_bool y if SPARC64
118 config NEED_PER_CPU_PAGE_FIRST_CHUNK
119 def_bool y if SPARC64
133 config NEED_DMA_MAP_STATE
136 config NEED_SG_DMA_LENGTH
139 config GENERIC_ISA_DMA
143 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
144 def_bool y if SPARC64
146 source "init/Kconfig"
148 source "kernel/Kconfig.freezer"
150 menu "Processor type and features"
153 bool "Symmetric multi-processing support"
155 This enables support for systems with more than one CPU. If you have
156 a system with only one CPU, say N. If you have a system with more
159 If you say N here, the kernel will run on uni- and multiprocessor
160 machines, but will use only one CPU of a multiprocessor machine. If
161 you say Y here, the kernel will run on many, but not all,
162 uniprocessor machines. On a uniprocessor machine, the kernel
163 will run faster if you say N here.
165 People using multiprocessor machines who say Y here should also say
166 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
167 Management" code will be disabled if you say Y here.
169 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
170 available at <http://www.tldp.org/docs.html#howto>.
172 If you don't know what to do here, say N.
175 int "Maximum number of CPUs"
177 range 2 32 if SPARC32
178 range 2 1024 if SPARC64
179 default 32 if SPARC32
180 default 64 if SPARC64
182 source kernel/Kconfig.hz
184 config RWSEM_GENERIC_SPINLOCK
188 config RWSEM_XCHGADD_ALGORITHM
192 config GENERIC_HWEIGHT
196 config GENERIC_CALIBRATE_DELAY
200 config ARCH_MAY_HAVE_PC_FDC
204 config EMULATED_CMPXCHG
208 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
209 is emulated, and therefore it is not completely atomic.
215 depends on SPARC32 && SMP
220 depends on SPARC64 && SMP
223 bool "Support for early boot text console"
227 Say Y here to enable a faster early framebuffer boot console.
230 bool "Enable seccomp to safely compute untrusted bytecode"
231 depends on SPARC64 && PROC_FS
234 This kernel feature is useful for number crunching applications
235 that may need to compute untrusted bytecode during their
236 execution. By using pipes or other transports made available to
237 the process as file descriptors supporting the read/write
238 syscalls, it's possible to isolate those applications in
239 their own address space using seccomp. Once seccomp is
240 enabled via /proc/<pid>/seccomp, it cannot be disabled
241 and the task is only allowed to execute a few safe syscalls
242 defined by each seccomp mode.
244 If unsure, say Y. Only embedded should say N here.
247 bool "Support for hot-pluggable CPUs"
248 depends on SPARC64 && SMP
250 Say Y here to experiment with turning CPUs off and on. CPUs
251 can be controlled through /sys/devices/system/cpu/cpu#.
252 Say N if you want to disable CPU hotplug.
255 source "drivers/cpufreq/Kconfig"
259 tristate "UltraSPARC-III Memory Controller driver"
263 This adds a driver for the UltraSPARC-III memory controller.
264 Loading this driver allows exact mnemonic strings to be
265 printed in the event of a memory error, so that the faulty DIMM
266 on the motherboard can be matched to the error.
268 If in doubt, say Y, as this information can be very useful.
270 # Global things across all Sun machines.
271 config GENERIC_LOCKBREAK
274 depends on SPARC64 && SMP && PREEMPT
278 depends on SPARC64 && SMP
283 depends on NEED_MULTIPLE_NODES
285 # Some NUMA nodes have memory ranges that span
286 # other nodes. Even though a pfn is valid and
287 # between a node's start and end pfns, it may not
288 # reside on that node. See memmap_init_zone()
290 config NODES_SPAN_OTHER_NODES
292 depends on NEED_MULTIPLE_NODES
294 config ARCH_SELECT_MEMORY_MODEL
295 def_bool y if SPARC64
297 config ARCH_SPARSEMEM_ENABLE
298 def_bool y if SPARC64
299 select SPARSEMEM_VMEMMAP_ENABLE
301 config ARCH_SPARSEMEM_DEFAULT
302 def_bool y if SPARC64
307 source "kernel/power/Kconfig"
311 bool "SMT (Hyperthreading) scheduler support"
312 depends on SPARC64 && SMP
315 SMT scheduler support improves the CPU scheduler's decision making
316 when dealing with SPARC cpus at a cost of slightly increased overhead
317 in some places. If unsure say N here.
320 bool "Multi-core scheduler support"
321 depends on SPARC64 && SMP
324 Multi-core scheduler support improves the CPU scheduler's decision
325 making when dealing with multi-core CPU chips at a cost of slightly
326 increased overhead in some places. If unsure say N here.
328 source "kernel/Kconfig.preempt"
331 bool "Default bootloader kernel arguments"
335 string "Initial kernel command string"
336 depends on CMDLINE_BOOL
337 default "console=ttyS0,9600 root=/dev/sda1"
339 Say Y here if you want to be able to pass default arguments to
340 the kernel. This will be overridden by the bootloader, if you
341 use one (such as SILO). This is most useful if you want to boot
342 a kernel from TFTP, and want default options to be available
343 with having them passed on the command line.
345 NOTE: This option WILL override the PROM bootargs setting!
351 Enable power management and CPU standby features on supported
355 tristate "Sun4m LED driver"
358 This driver toggles the front-panel LED on sun4m systems
359 in a user-specifiable manner. Its state can be probed
360 by reading /proc/led and its blinking mode can be changed
361 via writes to /proc/led
363 config SERIAL_CONSOLE
368 If you say Y here, it will be possible to use a serial port as the
369 system console (the system console is the device which receives all
370 kernel messages and warnings and which allows logins in single user
371 mode). This could be useful if some terminal or printer is connected
374 Even if you say Y here, the currently visible virtual console
375 (/dev/tty0) will still be used as the system console by default, but
376 you can alter that using a kernel command line option such as
377 "console=ttyS1". (Try "man bootparam" or see the documentation of
378 your boot loader (silo) about how to pass options to the kernel at
381 If you don't have a graphics card installed and you say Y here, the
382 kernel will automatically use the first serial line, /dev/ttyS0, as
388 bool "Sparc Leon processor family"
390 select USB_EHCI_BIG_ENDIAN_MMIO
391 select USB_EHCI_BIG_ENDIAN_DESC
393 If you say Y here if you are running on a SPARC-LEON processor.
394 The LEON processor is a synthesizable VHDL model of the
395 SPARC-v8 standard. LEON is part of the GRLIB collection of
396 IP cores that are distributed under GPL. GRLIB can be downloaded
397 from www.gaisler.com. You can download a sparc-linux cross-compilation
398 toolchain at www.gaisler.com.
401 menu "U-Boot options"
403 config UBOOT_LOAD_ADDR
404 hex "uImage Load Address"
407 U-Boot kernel load address, the address in physical address space
408 where u-boot will place the Linux kernel before booting it.
409 This address is normally the base address of main memory + 0x4000.
411 config UBOOT_FLASH_ADDR
412 hex "uImage.o Load Address"
415 Optional setting only affecting the uImage.o ELF-image used to
416 download the uImage file to the target using a ELF-loader other than
417 U-Boot. It may for example be used to download an uImage to FLASH with
418 the GRMON utility before even starting u-boot.
420 config UBOOT_ENTRY_ADDR
421 hex "uImage Entry Address"
424 Do not change this unless you know what you're doing. This is
425 hardcoded by the SPARC32 and LEON port.
427 This is the virtual address u-boot jumps to when booting the Linux
435 menu "Bus options (PCI etc.)"
445 bool "Sun Logical Domains support"
448 Say Y here is you want to support virtual devices via
452 bool "Support for PCI and PS/2 keyboard/mouse"
454 Find out whether your system includes a PCI bus. PCI is the name of
455 a bus system, i.e. the way the CPU talks to the other stuff inside
456 your box. If you say Y here, the kernel will include drivers and
457 infrastructure code to support PCI bus devices.
459 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
460 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
461 All of these platforms are extremely obscure, so say N if unsure.
464 def_bool PCI if SPARC64
471 depends on PCI && SPARC32 && !SPARC_LEON
476 depends on PCI && SPARC_LEON
480 bool "GRPCI Host Bridge Support"
484 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
485 PCI host controller is typically found in GRLIB SPARC32/LEON
486 systems. The driver has one property (all_pci_errors) controlled
487 from the bootloader that makes the GRPCI to generate interrupts
488 on detected PCI Parity and System errors.
491 bool "GRPCI2 Host Bridge Support"
495 Say Y here to include the GRPCI2 Host Bridge Driver.
497 source "drivers/pci/Kconfig"
499 source "drivers/pcmcia/Kconfig"
501 config SUN_OPENPROMFS
502 tristate "Openprom tree appears in /proc/openprom"
504 If you say Y, the OpenPROM device tree will be available as a
505 virtual file system, which you can mount to /proc/openprom by "mount
506 -t openpromfs none /proc/openprom".
508 To compile the /proc/openprom support as a module, choose M here: the
509 module will be called openpromfs.
511 Only choose N if you know in advance that you will not need to modify
512 OpenPROM settings on the running system.
518 depends on SPARC64 && PCI
520 config SPARC64_PCI_MSI
523 depends on SPARC64_PCI && PCI_MSI
527 menu "Executable file formats"
529 source "fs/Kconfig.binfmt"
535 select COMPAT_BINFMT_ELF
537 select ARCH_WANT_OLD_COMPAT_IPC
538 select COMPAT_OLD_SIGACTION
540 config SYSVIPC_COMPAT
542 depends on COMPAT && SYSVIPC
546 def_bool y if COMPAT && KEYS
552 source "drivers/Kconfig"
554 source "drivers/sbus/char/Kconfig"
558 source "arch/sparc/Kconfig.debug"
560 source "security/Kconfig"
562 source "crypto/Kconfig"