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_HARDIRQS_NO_DEPRECATED
30 select GENERIC_IRQ_SHOW
38 select ARCH_SUPPORTS_MSI
39 select HAVE_FUNCTION_TRACER
40 select HAVE_FUNCTION_GRAPH_TRACER
41 select HAVE_FUNCTION_GRAPH_FP_TEST
42 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
43 select HAVE_KRETPROBES
46 select HAVE_SYSCALL_WRAPPERS
47 select HAVE_DYNAMIC_FTRACE
48 select HAVE_FTRACE_MCOUNT_RECORD
49 select HAVE_SYSCALL_TRACEPOINTS
50 select USE_GENERIC_SMP_HELPERS if SMP
54 select RTC_DRV_STARFIRE
55 select HAVE_PERF_EVENTS
56 select PERF_USE_VMALLOC
57 select IRQ_PREFLOW_FASTEOI
61 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
62 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
64 # CONFIG_BITS can be used at source level to get 32/64 bits
70 config ARCH_USES_GETTIMEOFFSET
74 config GENERIC_CMOS_UPDATE
78 config GENERIC_CLOCKEVENTS
90 config STACKTRACE_SUPPORT
94 config LOCKDEP_SUPPORT
98 config HAVE_LATENCYTOP_SUPPORT
106 config HAVE_SETUP_PER_CPU_AREA
107 def_bool y if SPARC64
109 config NEED_PER_CPU_EMBED_FIRST_CHUNK
110 def_bool y if SPARC64
112 config NEED_PER_CPU_PAGE_FIRST_CHUNK
113 def_bool y if SPARC64
127 config NEED_DMA_MAP_STATE
130 config NEED_SG_DMA_LENGTH
133 config GENERIC_ISA_DMA
140 Generic GPIO API support
142 config ARCH_NO_VIRT_TO_BUS
145 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
146 def_bool y if SPARC64
148 source "init/Kconfig"
150 source "kernel/Kconfig.freezer"
152 menu "Processor type and features"
155 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
157 This enables support for systems with more than one CPU. If you have
158 a system with only one CPU, say N. If you have a system with more
161 If you say N here, the kernel will run on single and multiprocessor
162 machines, but will use only one CPU of a multiprocessor machine. If
163 you say Y here, the kernel will run on many, but not all,
164 singleprocessor machines. On a singleprocessor machine, the kernel
165 will run faster if you say N here.
167 People using multiprocessor machines who say Y here should also say
168 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
169 Management" code will be disabled if you say Y here.
171 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
172 available at <http://www.tldp.org/docs.html#howto>.
174 If you don't know what to do here, say N.
177 int "Maximum number of CPUs"
179 range 2 32 if SPARC32
180 range 2 1024 if SPARC64
181 default 32 if SPARC32
182 default 64 if SPARC64
184 source kernel/Kconfig.hz
186 config RWSEM_GENERIC_SPINLOCK
190 config RWSEM_XCHGADD_ALGORITHM
194 config GENERIC_FIND_NEXT_BIT
198 config GENERIC_FIND_BIT_LE
202 config GENERIC_HWEIGHT
204 default y if !ULTRA_HAS_POPULATION_COUNT
206 config GENERIC_CALIBRATE_DELAY
210 config ARCH_MAY_HAVE_PC_FDC
214 config EMULATED_CMPXCHG
218 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
219 is emulated, and therefore it is not completely atomic.
225 depends on SPARC32 && SMP
230 depends on SPARC64 && SMP
233 bool "Support for early boot text console"
237 Say Y here to enable a faster early framebuffer boot console.
240 prompt "Kernel page size" if SPARC64
241 default SPARC64_PAGE_SIZE_8KB
243 config SPARC64_PAGE_SIZE_8KB
246 This lets you select the page size of the kernel.
248 8KB and 64KB work quite well, since SPARC ELF sections
249 provide for up to 64KB alignment.
251 If you don't know what to do, choose 8KB.
253 config SPARC64_PAGE_SIZE_64KB
259 bool "Enable seccomp to safely compute untrusted bytecode"
260 depends on SPARC64 && PROC_FS
263 This kernel feature is useful for number crunching applications
264 that may need to compute untrusted bytecode during their
265 execution. By using pipes or other transports made available to
266 the process as file descriptors supporting the read/write
267 syscalls, it's possible to isolate those applications in
268 their own address space using seccomp. Once seccomp is
269 enabled via /proc/<pid>/seccomp, it cannot be disabled
270 and the task is only allowed to execute a few safe syscalls
271 defined by each seccomp mode.
273 If unsure, say Y. Only embedded should say N here.
276 bool "Support for hot-pluggable CPUs"
277 depends on SPARC64 && SMP
280 Say Y here to experiment with turning CPUs off and on. CPUs
281 can be controlled through /sys/devices/system/cpu/cpu#.
282 Say N if you want to disable CPU hotplug.
284 source "kernel/time/Kconfig"
287 source "drivers/cpufreq/Kconfig"
290 tristate "UltraSPARC-III CPU Frequency driver"
292 select CPU_FREQ_TABLE
294 This adds the CPUFreq driver for UltraSPARC-III processors.
296 For details, take a look at <file:Documentation/cpu-freq>.
301 tristate "UltraSPARC-IIe CPU Frequency driver"
303 select CPU_FREQ_TABLE
305 This adds the CPUFreq driver for UltraSPARC-IIe processors.
307 For details, take a look at <file:Documentation/cpu-freq>.
314 tristate "UltraSPARC-III Memory Controller driver"
318 This adds a driver for the UltraSPARC-III memory controller.
319 Loading this driver allows exact mnemonic strings to be
320 printed in the event of a memory error, so that the faulty DIMM
321 on the motherboard can be matched to the error.
323 If in doubt, say Y, as this information can be very useful.
325 # Global things across all Sun machines.
326 config GENERIC_LOCKBREAK
329 depends on SPARC64 && SMP && PREEMPT
332 prompt "SPARC64 Huge TLB Page Size"
333 depends on SPARC64 && HUGETLB_PAGE
334 default HUGETLB_PAGE_SIZE_4MB
336 config HUGETLB_PAGE_SIZE_4MB
339 config HUGETLB_PAGE_SIZE_512K
342 config HUGETLB_PAGE_SIZE_64K
343 depends on !SPARC64_PAGE_SIZE_64KB
350 depends on SPARC64 && SMP
355 depends on NEED_MULTIPLE_NODES
357 # Some NUMA nodes have memory ranges that span
358 # other nodes. Even though a pfn is valid and
359 # between a node's start and end pfns, it may not
360 # reside on that node. See memmap_init_zone()
362 config NODES_SPAN_OTHER_NODES
364 depends on NEED_MULTIPLE_NODES
366 config ARCH_POPULATES_NODE_MAP
367 def_bool y if SPARC64
369 config ARCH_SELECT_MEMORY_MODEL
370 def_bool y if SPARC64
372 config ARCH_SPARSEMEM_ENABLE
373 def_bool y if SPARC64
374 select SPARSEMEM_VMEMMAP_ENABLE
376 config ARCH_SPARSEMEM_DEFAULT
377 def_bool y if SPARC64
382 bool "SMT (Hyperthreading) scheduler support"
383 depends on SPARC64 && SMP
386 SMT scheduler support improves the CPU scheduler's decision making
387 when dealing with SPARC cpus at a cost of slightly increased overhead
388 in some places. If unsure say N here.
391 bool "Multi-core scheduler support"
392 depends on SPARC64 && SMP
395 Multi-core scheduler support improves the CPU scheduler's decision
396 making when dealing with multi-core CPU chips at a cost of slightly
397 increased overhead in some places. If unsure say N here.
400 source "kernel/Kconfig.preempt"
404 bool "Default bootloader kernel arguments"
408 string "Initial kernel command string"
409 depends on CMDLINE_BOOL
410 default "console=ttyS0,9600 root=/dev/sda1"
412 Say Y here if you want to be able to pass default arguments to
413 the kernel. This will be overridden by the bootloader, if you
414 use one (such as SILO). This is most useful if you want to boot
415 a kernel from TFTP, and want default options to be available
416 with having them passed on the command line.
418 NOTE: This option WILL override the PROM bootargs setting!
424 Enable power management and CPU standby features on supported
428 tristate "Sun4m LED driver"
431 This driver toggles the front-panel LED on sun4m systems
432 in a user-specifiable manner. Its state can be probed
433 by reading /proc/led and its blinking mode can be changed
434 via writes to /proc/led
436 config SERIAL_CONSOLE
441 If you say Y here, it will be possible to use a serial port as the
442 system console (the system console is the device which receives all
443 kernel messages and warnings and which allows logins in single user
444 mode). This could be useful if some terminal or printer is connected
447 Even if you say Y here, the currently visible virtual console
448 (/dev/tty0) will still be used as the system console by default, but
449 you can alter that using a kernel command line option such as
450 "console=ttyS1". (Try "man bootparam" or see the documentation of
451 your boot loader (silo) about how to pass options to the kernel at
454 If you don't have a graphics card installed and you say Y here, the
455 kernel will automatically use the first serial line, /dev/ttyS0, as
461 bool "Sparc Leon processor family"
464 If you say Y here if you are running on a SPARC-LEON processor.
465 The LEON processor is a synthesizable VHDL model of the
466 SPARC-v8 standard. LEON is part of the GRLIB collection of
467 IP cores that are distributed under GPL. GRLIB can be downloaded
468 from www.gaisler.com. You can download a sparc-linux cross-compilation
469 toolchain at www.gaisler.com.
472 menu "U-Boot options"
474 config UBOOT_LOAD_ADDR
475 hex "uImage Load Address"
478 U-Boot kernel load address, the address in physical address space
479 where u-boot will place the Linux kernel before booting it.
480 This address is normally the base address of main memory + 0x4000.
482 config UBOOT_FLASH_ADDR
483 hex "uImage.o Load Address"
486 Optional setting only affecting the uImage.o ELF-image used to
487 download the uImage file to the target using a ELF-loader other than
488 U-Boot. It may for example be used to download an uImage to FLASH with
489 the GRMON utility before even starting u-boot.
491 config UBOOT_ENTRY_ADDR
492 hex "uImage Entry Address"
495 Do not change this unless you know what you're doing. This is
496 hardcoded by the SPARC32 and LEON port.
498 This is the virtual address u-boot jumps to when booting the Linux
506 menu "Bus options (PCI etc.)"
516 bool "Sun Logical Domains support"
519 Say Y here is you want to support virtual devices via
523 bool "Support for PCI and PS/2 keyboard/mouse"
525 Find out whether your system includes a PCI bus. PCI is the name of
526 a bus system, i.e. the way the CPU talks to the other stuff inside
527 your box. If you say Y here, the kernel will include drivers and
528 infrastructure code to support PCI bus devices.
530 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
531 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
532 All of these platforms are extremely obscure, so say N if unsure.
535 def_bool PCI if SPARC64
540 source "drivers/pci/Kconfig"
542 source "drivers/pcmcia/Kconfig"
544 config SUN_OPENPROMFS
545 tristate "Openprom tree appears in /proc/openprom"
547 If you say Y, the OpenPROM device tree will be available as a
548 virtual file system, which you can mount to /proc/openprom by "mount
549 -t openpromfs none /proc/openprom".
551 To compile the /proc/openprom support as a module, choose M here: the
552 module will be called openpromfs.
554 Only choose N if you know in advance that you will not need to modify
555 OpenPROM settings on the running system.
561 depends on SPARC32 && PCI
566 depends on SPARC64 && PCI
570 menu "Executable file formats"
572 source "fs/Kconfig.binfmt"
578 select COMPAT_BINFMT_ELF
580 config SYSVIPC_COMPAT
582 depends on COMPAT && SYSVIPC
589 source "drivers/Kconfig"
591 source "drivers/sbus/char/Kconfig"
595 source "arch/sparc/Kconfig.debug"
597 source "security/Kconfig"
599 source "crypto/Kconfig"