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 ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select USE_GENERIC_SMP_HELPERS if SMP
37 select ARCH_SUPPORTS_MSI
38 select HAVE_FUNCTION_TRACER
39 select HAVE_FUNCTION_GRAPH_TRACER
40 select HAVE_FUNCTION_GRAPH_FP_TEST
41 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
42 select HAVE_KRETPROBES
45 select HAVE_SYSCALL_WRAPPERS
46 select HAVE_DYNAMIC_FTRACE
47 select HAVE_FTRACE_MCOUNT_RECORD
48 select HAVE_SYSCALL_TRACEPOINTS
52 select RTC_DRV_STARFIRE
53 select HAVE_PERF_EVENTS
54 select PERF_USE_VMALLOC
55 select IRQ_PREFLOW_FASTEOI
59 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
60 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
62 # CONFIG_BITS can be used at source level to get 32/64 bits
68 config ARCH_USES_GETTIMEOFFSET
72 config GENERIC_CMOS_UPDATE
76 config GENERIC_CLOCKEVENTS
84 config STACKTRACE_SUPPORT
88 config LOCKDEP_SUPPORT
92 config HAVE_LATENCYTOP_SUPPORT
100 config HAVE_SETUP_PER_CPU_AREA
101 def_bool y if SPARC64
103 config NEED_PER_CPU_EMBED_FIRST_CHUNK
104 def_bool y if SPARC64
106 config NEED_PER_CPU_PAGE_FIRST_CHUNK
107 def_bool y if SPARC64
121 config NEED_DMA_MAP_STATE
124 config NEED_SG_DMA_LENGTH
127 config GENERIC_ISA_DMA
134 Generic GPIO API support
136 config ARCH_NO_VIRT_TO_BUS
139 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
140 def_bool y if SPARC64
142 source "init/Kconfig"
144 source "kernel/Kconfig.freezer"
146 menu "Processor type and features"
149 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
151 This enables support for systems with more than one CPU. If you have
152 a system with only one CPU, say N. If you have a system with more
155 If you say N here, the kernel will run on single and multiprocessor
156 machines, but will use only one CPU of a multiprocessor machine. If
157 you say Y here, the kernel will run on many, but not all,
158 singleprocessor machines. On a singleprocessor machine, the kernel
159 will run faster if you say N here.
161 People using multiprocessor machines who say Y here should also say
162 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
163 Management" code will be disabled if you say Y here.
165 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
166 available at <http://www.tldp.org/docs.html#howto>.
168 If you don't know what to do here, say N.
171 int "Maximum number of CPUs"
173 range 2 32 if SPARC32
174 range 2 1024 if SPARC64
175 default 32 if SPARC32
176 default 64 if SPARC64
178 source kernel/Kconfig.hz
180 config RWSEM_GENERIC_SPINLOCK
184 config RWSEM_XCHGADD_ALGORITHM
188 config GENERIC_HWEIGHT
190 default y if !ULTRA_HAS_POPULATION_COUNT
192 config GENERIC_CALIBRATE_DELAY
196 config ARCH_MAY_HAVE_PC_FDC
200 config EMULATED_CMPXCHG
204 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
205 is emulated, and therefore it is not completely atomic.
211 depends on SPARC32 && SMP
216 depends on SPARC64 && SMP
219 bool "Support for early boot text console"
223 Say Y here to enable a faster early framebuffer boot console.
226 prompt "Kernel page size" if SPARC64
227 default SPARC64_PAGE_SIZE_8KB
229 config SPARC64_PAGE_SIZE_8KB
232 This lets you select the page size of the kernel.
234 8KB and 64KB work quite well, since SPARC ELF sections
235 provide for up to 64KB alignment.
237 If you don't know what to do, choose 8KB.
239 config SPARC64_PAGE_SIZE_64KB
245 bool "Enable seccomp to safely compute untrusted bytecode"
246 depends on SPARC64 && PROC_FS
249 This kernel feature is useful for number crunching applications
250 that may need to compute untrusted bytecode during their
251 execution. By using pipes or other transports made available to
252 the process as file descriptors supporting the read/write
253 syscalls, it's possible to isolate those applications in
254 their own address space using seccomp. Once seccomp is
255 enabled via /proc/<pid>/seccomp, it cannot be disabled
256 and the task is only allowed to execute a few safe syscalls
257 defined by each seccomp mode.
259 If unsure, say Y. Only embedded should say N here.
262 bool "Support for hot-pluggable CPUs"
263 depends on SPARC64 && SMP
266 Say Y here to experiment with turning CPUs off and on. CPUs
267 can be controlled through /sys/devices/system/cpu/cpu#.
268 Say N if you want to disable CPU hotplug.
270 source "kernel/time/Kconfig"
273 source "drivers/cpufreq/Kconfig"
276 tristate "UltraSPARC-III CPU Frequency driver"
278 select CPU_FREQ_TABLE
280 This adds the CPUFreq driver for UltraSPARC-III processors.
282 For details, take a look at <file:Documentation/cpu-freq>.
287 tristate "UltraSPARC-IIe CPU Frequency driver"
289 select CPU_FREQ_TABLE
291 This adds the CPUFreq driver for UltraSPARC-IIe processors.
293 For details, take a look at <file:Documentation/cpu-freq>.
300 tristate "UltraSPARC-III Memory Controller driver"
304 This adds a driver for the UltraSPARC-III memory controller.
305 Loading this driver allows exact mnemonic strings to be
306 printed in the event of a memory error, so that the faulty DIMM
307 on the motherboard can be matched to the error.
309 If in doubt, say Y, as this information can be very useful.
311 # Global things across all Sun machines.
312 config GENERIC_LOCKBREAK
315 depends on SPARC64 && SMP && PREEMPT
318 prompt "SPARC64 Huge TLB Page Size"
319 depends on SPARC64 && HUGETLB_PAGE
320 default HUGETLB_PAGE_SIZE_4MB
322 config HUGETLB_PAGE_SIZE_4MB
325 config HUGETLB_PAGE_SIZE_512K
328 config HUGETLB_PAGE_SIZE_64K
329 depends on !SPARC64_PAGE_SIZE_64KB
336 depends on SPARC64 && SMP
341 depends on NEED_MULTIPLE_NODES
343 # Some NUMA nodes have memory ranges that span
344 # other nodes. Even though a pfn is valid and
345 # between a node's start and end pfns, it may not
346 # reside on that node. See memmap_init_zone()
348 config NODES_SPAN_OTHER_NODES
350 depends on NEED_MULTIPLE_NODES
352 config ARCH_POPULATES_NODE_MAP
353 def_bool y if SPARC64
355 config ARCH_SELECT_MEMORY_MODEL
356 def_bool y if SPARC64
358 config ARCH_SPARSEMEM_ENABLE
359 def_bool y if SPARC64
360 select SPARSEMEM_VMEMMAP_ENABLE
362 config ARCH_SPARSEMEM_DEFAULT
363 def_bool y if SPARC64
368 bool "SMT (Hyperthreading) scheduler support"
369 depends on SPARC64 && SMP
372 SMT scheduler support improves the CPU scheduler's decision making
373 when dealing with SPARC cpus at a cost of slightly increased overhead
374 in some places. If unsure say N here.
377 bool "Multi-core scheduler support"
378 depends on SPARC64 && SMP
381 Multi-core scheduler support improves the CPU scheduler's decision
382 making when dealing with multi-core CPU chips at a cost of slightly
383 increased overhead in some places. If unsure say N here.
386 source "kernel/Kconfig.preempt"
390 bool "Default bootloader kernel arguments"
394 string "Initial kernel command string"
395 depends on CMDLINE_BOOL
396 default "console=ttyS0,9600 root=/dev/sda1"
398 Say Y here if you want to be able to pass default arguments to
399 the kernel. This will be overridden by the bootloader, if you
400 use one (such as SILO). This is most useful if you want to boot
401 a kernel from TFTP, and want default options to be available
402 with having them passed on the command line.
404 NOTE: This option WILL override the PROM bootargs setting!
410 Enable power management and CPU standby features on supported
414 tristate "Sun4m LED driver"
417 This driver toggles the front-panel LED on sun4m systems
418 in a user-specifiable manner. Its state can be probed
419 by reading /proc/led and its blinking mode can be changed
420 via writes to /proc/led
422 config SERIAL_CONSOLE
427 If you say Y here, it will be possible to use a serial port as the
428 system console (the system console is the device which receives all
429 kernel messages and warnings and which allows logins in single user
430 mode). This could be useful if some terminal or printer is connected
433 Even if you say Y here, the currently visible virtual console
434 (/dev/tty0) will still be used as the system console by default, but
435 you can alter that using a kernel command line option such as
436 "console=ttyS1". (Try "man bootparam" or see the documentation of
437 your boot loader (silo) about how to pass options to the kernel at
440 If you don't have a graphics card installed and you say Y here, the
441 kernel will automatically use the first serial line, /dev/ttyS0, as
447 bool "Sparc Leon processor family"
450 If you say Y here if you are running on a SPARC-LEON processor.
451 The LEON processor is a synthesizable VHDL model of the
452 SPARC-v8 standard. LEON is part of the GRLIB collection of
453 IP cores that are distributed under GPL. GRLIB can be downloaded
454 from www.gaisler.com. You can download a sparc-linux cross-compilation
455 toolchain at www.gaisler.com.
458 menu "U-Boot options"
460 config UBOOT_LOAD_ADDR
461 hex "uImage Load Address"
464 U-Boot kernel load address, the address in physical address space
465 where u-boot will place the Linux kernel before booting it.
466 This address is normally the base address of main memory + 0x4000.
468 config UBOOT_FLASH_ADDR
469 hex "uImage.o Load Address"
472 Optional setting only affecting the uImage.o ELF-image used to
473 download the uImage file to the target using a ELF-loader other than
474 U-Boot. It may for example be used to download an uImage to FLASH with
475 the GRMON utility before even starting u-boot.
477 config UBOOT_ENTRY_ADDR
478 hex "uImage Entry Address"
481 Do not change this unless you know what you're doing. This is
482 hardcoded by the SPARC32 and LEON port.
484 This is the virtual address u-boot jumps to when booting the Linux
492 menu "Bus options (PCI etc.)"
502 bool "Sun Logical Domains support"
505 Say Y here is you want to support virtual devices via
509 bool "Support for PCI and PS/2 keyboard/mouse"
511 Find out whether your system includes a PCI bus. PCI is the name of
512 a bus system, i.e. the way the CPU talks to the other stuff inside
513 your box. If you say Y here, the kernel will include drivers and
514 infrastructure code to support PCI bus devices.
516 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
517 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
518 All of these platforms are extremely obscure, so say N if unsure.
521 def_bool PCI if SPARC64
528 depends on PCI && SPARC32 && !SPARC_LEON
533 depends on PCI && SPARC_LEON
537 bool "GRPCI2 Host Bridge Support"
541 Say Y here to include the GRPCI2 Host Bridge Driver.
543 source "drivers/pci/Kconfig"
545 source "drivers/pcmcia/Kconfig"
547 config SUN_OPENPROMFS
548 tristate "Openprom tree appears in /proc/openprom"
550 If you say Y, the OpenPROM device tree will be available as a
551 virtual file system, which you can mount to /proc/openprom by "mount
552 -t openpromfs none /proc/openprom".
554 To compile the /proc/openprom support as a module, choose M here: the
555 module will be called openpromfs.
557 Only choose N if you know in advance that you will not need to modify
558 OpenPROM settings on the running system.
564 depends on SPARC32 && PCI
569 depends on SPARC64 && PCI
573 menu "Executable file formats"
575 source "fs/Kconfig.binfmt"
581 select COMPAT_BINFMT_ELF
583 config SYSVIPC_COMPAT
585 depends on COMPAT && SYSVIPC
592 source "drivers/Kconfig"
594 source "drivers/sbus/char/Kconfig"
598 source "arch/sparc/Kconfig.debug"
600 source "security/Kconfig"
602 source "crypto/Kconfig"