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_HAS_ATOMIC64_DEC_IF_POSITIVE
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL if SPARC64
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
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
43 select ARCH_HAS_SG_CHAIN
47 select GENERIC_ATOMIC64
54 select HAVE_FUNCTION_TRACER
55 select HAVE_FUNCTION_GRAPH_TRACER
56 select HAVE_FUNCTION_GRAPH_FP_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_CONTEXT_TRACKING
67 select HAVE_DEBUG_KMEMLEAK
72 select RTC_DRV_STARFIRE
73 select HAVE_PERF_EVENTS
74 select PERF_USE_VMALLOC
75 select IRQ_PREFLOW_FASTEOI
76 select ARCH_HAVE_NMI_SAFE_CMPXCHG
77 select HAVE_C_RECORDMCOUNT
79 select HAVE_ARCH_AUDITSYSCALL
80 select ARCH_SUPPORTS_ATOMIC_RMW
84 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
85 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
87 config ARCH_PROC_KCORE_TEXT
94 config STACKTRACE_SUPPORT
98 config LOCKDEP_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 config PGTABLE_LEVELS
147 source "init/Kconfig"
149 source "kernel/Kconfig.freezer"
151 menu "Processor type and features"
154 bool "Symmetric multi-processing support"
156 This enables support for systems with more than one CPU. If you have
157 a system with only one CPU, say N. If you have a system with more
160 If you say N here, the kernel will run on uni- and multiprocessor
161 machines, but will use only one CPU of a multiprocessor machine. If
162 you say Y here, the kernel will run on many, but not all,
163 uniprocessor machines. On a uniprocessor machine, the kernel
164 will run faster if you say N here.
166 People using multiprocessor machines who say Y here should also say
167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
168 Management" code will be disabled if you say Y here.
170 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
171 available at <http://www.tldp.org/docs.html#howto>.
173 If you don't know what to do here, say N.
176 int "Maximum number of CPUs"
178 range 2 32 if SPARC32
179 range 2 1024 if SPARC64
180 default 32 if SPARC32
181 default 64 if SPARC64
183 source kernel/Kconfig.hz
185 config RWSEM_GENERIC_SPINLOCK
189 config RWSEM_XCHGADD_ALGORITHM
193 config GENERIC_HWEIGHT
197 config GENERIC_CALIBRATE_DELAY
201 config ARCH_MAY_HAVE_PC_FDC
205 config EMULATED_CMPXCHG
209 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
210 is emulated, and therefore it is not completely atomic.
216 depends on SPARC32 && SMP
221 depends on SPARC64 && SMP
224 bool "Support for early boot text console"
228 Say Y here to enable a faster early framebuffer boot console.
231 bool "Enable seccomp to safely compute untrusted bytecode"
232 depends on SPARC64 && PROC_FS
235 This kernel feature is useful for number crunching applications
236 that may need to compute untrusted bytecode during their
237 execution. By using pipes or other transports made available to
238 the process as file descriptors supporting the read/write
239 syscalls, it's possible to isolate those applications in
240 their own address space using seccomp. Once seccomp is
241 enabled via /proc/<pid>/seccomp, it cannot be disabled
242 and the task is only allowed to execute a few safe syscalls
243 defined by each seccomp mode.
245 If unsure, say Y. Only embedded should say N here.
248 bool "Support for hot-pluggable CPUs"
249 depends on SPARC64 && SMP
251 Say Y here to experiment with turning CPUs off and on. CPUs
252 can be controlled through /sys/devices/system/cpu/cpu#.
253 Say N if you want to disable CPU hotplug.
256 source "drivers/cpufreq/Kconfig"
260 tristate "UltraSPARC-III Memory Controller driver"
264 This adds a driver for the UltraSPARC-III memory controller.
265 Loading this driver allows exact mnemonic strings to be
266 printed in the event of a memory error, so that the faulty DIMM
267 on the motherboard can be matched to the error.
269 If in doubt, say Y, as this information can be very useful.
271 # Global things across all Sun machines.
272 config GENERIC_LOCKBREAK
275 depends on SPARC64 && SMP && PREEMPT
279 depends on SPARC64 && SMP
284 depends on NEED_MULTIPLE_NODES
286 # Some NUMA nodes have memory ranges that span
287 # other nodes. Even though a pfn is valid and
288 # between a node's start and end pfns, it may not
289 # reside on that node. See memmap_init_zone()
291 config NODES_SPAN_OTHER_NODES
293 depends on NEED_MULTIPLE_NODES
295 config ARCH_SELECT_MEMORY_MODEL
296 def_bool y if SPARC64
298 config ARCH_SPARSEMEM_ENABLE
299 def_bool y if SPARC64
300 select SPARSEMEM_VMEMMAP_ENABLE
302 config ARCH_SPARSEMEM_DEFAULT
303 def_bool y if SPARC64
308 source "kernel/power/Kconfig"
312 bool "SMT (Hyperthreading) scheduler support"
313 depends on SPARC64 && SMP
316 SMT scheduler support improves the CPU scheduler's decision making
317 when dealing with SPARC cpus at a cost of slightly increased overhead
318 in some places. If unsure say N here.
321 bool "Multi-core scheduler support"
322 depends on SPARC64 && SMP
325 Multi-core scheduler support improves the CPU scheduler's decision
326 making when dealing with multi-core CPU chips at a cost of slightly
327 increased overhead in some places. If unsure say N here.
329 source "kernel/Kconfig.preempt"
332 bool "Default bootloader kernel arguments"
336 string "Initial kernel command string"
337 depends on CMDLINE_BOOL
338 default "console=ttyS0,9600 root=/dev/sda1"
340 Say Y here if you want to be able to pass default arguments to
341 the kernel. This will be overridden by the bootloader, if you
342 use one (such as SILO). This is most useful if you want to boot
343 a kernel from TFTP, and want default options to be available
344 with having them passed on the command line.
346 NOTE: This option WILL override the PROM bootargs setting!
352 Enable power management and CPU standby features on supported
356 tristate "Sun4m LED driver"
359 This driver toggles the front-panel LED on sun4m systems
360 in a user-specifiable manner. Its state can be probed
361 by reading /proc/led and its blinking mode can be changed
362 via writes to /proc/led
364 config SERIAL_CONSOLE
369 If you say Y here, it will be possible to use a serial port as the
370 system console (the system console is the device which receives all
371 kernel messages and warnings and which allows logins in single user
372 mode). This could be useful if some terminal or printer is connected
375 Even if you say Y here, the currently visible virtual console
376 (/dev/tty0) will still be used as the system console by default, but
377 you can alter that using a kernel command line option such as
378 "console=ttyS1". (Try "man bootparam" or see the documentation of
379 your boot loader (silo) about how to pass options to the kernel at
382 If you don't have a graphics card installed and you say Y here, the
383 kernel will automatically use the first serial line, /dev/ttyS0, as
389 bool "Sparc Leon processor family"
391 select USB_EHCI_BIG_ENDIAN_MMIO
392 select USB_EHCI_BIG_ENDIAN_DESC
394 If you say Y here if you are running on a SPARC-LEON processor.
395 The LEON processor is a synthesizable VHDL model of the
396 SPARC-v8 standard. LEON is part of the GRLIB collection of
397 IP cores that are distributed under GPL. GRLIB can be downloaded
398 from www.gaisler.com. You can download a sparc-linux cross-compilation
399 toolchain at www.gaisler.com.
402 menu "U-Boot options"
404 config UBOOT_LOAD_ADDR
405 hex "uImage Load Address"
408 U-Boot kernel load address, the address in physical address space
409 where u-boot will place the Linux kernel before booting it.
410 This address is normally the base address of main memory + 0x4000.
412 config UBOOT_FLASH_ADDR
413 hex "uImage.o Load Address"
416 Optional setting only affecting the uImage.o ELF-image used to
417 download the uImage file to the target using a ELF-loader other than
418 U-Boot. It may for example be used to download an uImage to FLASH with
419 the GRMON utility before even starting u-boot.
421 config UBOOT_ENTRY_ADDR
422 hex "uImage Entry Address"
425 Do not change this unless you know what you're doing. This is
426 hardcoded by the SPARC32 and LEON port.
428 This is the virtual address u-boot jumps to when booting the Linux
436 menu "Bus options (PCI etc.)"
446 bool "Sun Logical Domains support"
449 Say Y here is you want to support virtual devices via
453 bool "Support for PCI and PS/2 keyboard/mouse"
455 Find out whether your system includes a PCI bus. PCI is the name of
456 a bus system, i.e. the way the CPU talks to the other stuff inside
457 your box. If you say Y here, the kernel will include drivers and
458 infrastructure code to support PCI bus devices.
460 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
461 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
462 All of these platforms are extremely obscure, so say N if unsure.
465 def_bool PCI if SPARC64
472 depends on PCI && SPARC32 && !SPARC_LEON
477 depends on PCI && SPARC_LEON
481 bool "GRPCI Host Bridge Support"
485 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
486 PCI host controller is typically found in GRLIB SPARC32/LEON
487 systems. The driver has one property (all_pci_errors) controlled
488 from the bootloader that makes the GRPCI to generate interrupts
489 on detected PCI Parity and System errors.
492 bool "GRPCI2 Host Bridge Support"
496 Say Y here to include the GRPCI2 Host Bridge Driver.
498 source "drivers/pci/Kconfig"
500 source "drivers/pcmcia/Kconfig"
502 config SUN_OPENPROMFS
503 tristate "Openprom tree appears in /proc/openprom"
505 If you say Y, the OpenPROM device tree will be available as a
506 virtual file system, which you can mount to /proc/openprom by "mount
507 -t openpromfs none /proc/openprom".
509 To compile the /proc/openprom support as a module, choose M here: the
510 module will be called openpromfs.
512 Only choose N if you know in advance that you will not need to modify
513 OpenPROM settings on the running system.
519 depends on SPARC64 && PCI
521 config SPARC64_PCI_MSI
524 depends on SPARC64_PCI && PCI_MSI
528 menu "Executable file formats"
530 source "fs/Kconfig.binfmt"
536 select COMPAT_BINFMT_ELF
538 select ARCH_WANT_OLD_COMPAT_IPC
539 select COMPAT_OLD_SIGACTION
541 config SYSVIPC_COMPAT
543 depends on COMPAT && SYSVIPC
547 def_bool y if COMPAT && KEYS
553 source "drivers/Kconfig"
555 source "drivers/sbus/char/Kconfig"
559 source "arch/sparc/Kconfig.debug"
561 source "security/Kconfig"
563 source "crypto/Kconfig"