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
34 select ARCH_SUPPORTS_MSI
35 select HAVE_FUNCTION_TRACER
36 select HAVE_FUNCTION_GRAPH_TRACER
37 select HAVE_FUNCTION_GRAPH_FP_TEST
38 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
39 select HAVE_KRETPROBES
42 select HAVE_SYSCALL_WRAPPERS
43 select HAVE_DYNAMIC_FTRACE
44 select HAVE_FTRACE_MCOUNT_RECORD
45 select HAVE_SYSCALL_TRACEPOINTS
46 select USE_GENERIC_SMP_HELPERS if SMP
50 select RTC_DRV_STARFIRE
51 select HAVE_PERF_EVENTS
52 select PERF_USE_VMALLOC
53 select HAVE_GENERIC_HARDIRQS
54 select GENERIC_HARDIRQS_NO_DEPRECATED
58 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
59 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
61 # CONFIG_BITS can be used at source level to get 32/64 bits
67 config ARCH_USES_GETTIMEOFFSET
71 config GENERIC_CMOS_UPDATE
75 config GENERIC_CLOCKEVENTS
87 config STACKTRACE_SUPPORT
91 config LOCKDEP_SUPPORT
95 config HAVE_LATENCYTOP_SUPPORT
103 config HAVE_SETUP_PER_CPU_AREA
104 def_bool y if SPARC64
106 config NEED_PER_CPU_EMBED_FIRST_CHUNK
107 def_bool y if SPARC64
109 config NEED_PER_CPU_PAGE_FIRST_CHUNK
110 def_bool y if SPARC64
124 config NEED_DMA_MAP_STATE
127 config NEED_SG_DMA_LENGTH
130 config GENERIC_ISA_DMA
137 Generic GPIO API support
139 config ARCH_NO_VIRT_TO_BUS
142 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
143 def_bool y if SPARC64
145 source "init/Kconfig"
147 source "kernel/Kconfig.freezer"
149 menu "Processor type and features"
152 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
154 This enables support for systems with more than one CPU. If you have
155 a system with only one CPU, say N. If you have a system with more
158 If you say N here, the kernel will run on single and multiprocessor
159 machines, but will use only one CPU of a multiprocessor machine. If
160 you say Y here, the kernel will run on many, but not all,
161 singleprocessor machines. On a singleprocessor machine, the kernel
162 will run faster if you say N here.
164 People using multiprocessor machines who say Y here should also say
165 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
166 Management" code will be disabled if you say Y here.
168 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
169 available at <http://www.tldp.org/docs.html#howto>.
171 If you don't know what to do here, say N.
174 int "Maximum number of CPUs"
176 range 2 32 if SPARC32
177 range 2 1024 if SPARC64
178 default 32 if SPARC32
179 default 64 if SPARC64
181 source kernel/Kconfig.hz
183 config RWSEM_GENERIC_SPINLOCK
187 config RWSEM_XCHGADD_ALGORITHM
191 config GENERIC_FIND_NEXT_BIT
195 config GENERIC_FIND_BIT_LE
199 config GENERIC_HWEIGHT
201 default y if !ULTRA_HAS_POPULATION_COUNT
203 config GENERIC_CALIBRATE_DELAY
207 config ARCH_MAY_HAVE_PC_FDC
211 config EMULATED_CMPXCHG
215 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
216 is emulated, and therefore it is not completely atomic.
222 depends on SPARC32 && SMP
227 depends on SPARC64 && SMP
230 bool "Support for early boot text console"
234 Say Y here to enable a faster early framebuffer boot console.
237 prompt "Kernel page size" if SPARC64
238 default SPARC64_PAGE_SIZE_8KB
240 config SPARC64_PAGE_SIZE_8KB
243 This lets you select the page size of the kernel.
245 8KB and 64KB work quite well, since SPARC ELF sections
246 provide for up to 64KB alignment.
248 If you don't know what to do, choose 8KB.
250 config SPARC64_PAGE_SIZE_64KB
256 bool "Enable seccomp to safely compute untrusted bytecode"
257 depends on SPARC64 && PROC_FS
260 This kernel feature is useful for number crunching applications
261 that may need to compute untrusted bytecode during their
262 execution. By using pipes or other transports made available to
263 the process as file descriptors supporting the read/write
264 syscalls, it's possible to isolate those applications in
265 their own address space using seccomp. Once seccomp is
266 enabled via /proc/<pid>/seccomp, it cannot be disabled
267 and the task is only allowed to execute a few safe syscalls
268 defined by each seccomp mode.
270 If unsure, say Y. Only embedded should say N here.
273 bool "Support for hot-pluggable CPUs"
274 depends on SPARC64 && SMP
277 Say Y here to experiment with turning CPUs off and on. CPUs
278 can be controlled through /sys/devices/system/cpu/cpu#.
279 Say N if you want to disable CPU hotplug.
281 source "kernel/time/Kconfig"
284 source "drivers/cpufreq/Kconfig"
287 tristate "UltraSPARC-III CPU Frequency driver"
289 select CPU_FREQ_TABLE
291 This adds the CPUFreq driver for UltraSPARC-III processors.
293 For details, take a look at <file:Documentation/cpu-freq>.
298 tristate "UltraSPARC-IIe CPU Frequency driver"
300 select CPU_FREQ_TABLE
302 This adds the CPUFreq driver for UltraSPARC-IIe processors.
304 For details, take a look at <file:Documentation/cpu-freq>.
311 tristate "UltraSPARC-III Memory Controller driver"
315 This adds a driver for the UltraSPARC-III memory controller.
316 Loading this driver allows exact mnemonic strings to be
317 printed in the event of a memory error, so that the faulty DIMM
318 on the motherboard can be matched to the error.
320 If in doubt, say Y, as this information can be very useful.
322 # Global things across all Sun machines.
323 config GENERIC_LOCKBREAK
326 depends on SPARC64 && SMP && PREEMPT
329 prompt "SPARC64 Huge TLB Page Size"
330 depends on SPARC64 && HUGETLB_PAGE
331 default HUGETLB_PAGE_SIZE_4MB
333 config HUGETLB_PAGE_SIZE_4MB
336 config HUGETLB_PAGE_SIZE_512K
339 config HUGETLB_PAGE_SIZE_64K
340 depends on !SPARC64_PAGE_SIZE_64KB
347 depends on SPARC64 && SMP
352 depends on NEED_MULTIPLE_NODES
354 # Some NUMA nodes have memory ranges that span
355 # other nodes. Even though a pfn is valid and
356 # between a node's start and end pfns, it may not
357 # reside on that node. See memmap_init_zone()
359 config NODES_SPAN_OTHER_NODES
361 depends on NEED_MULTIPLE_NODES
363 config ARCH_POPULATES_NODE_MAP
364 def_bool y if SPARC64
366 config ARCH_SELECT_MEMORY_MODEL
367 def_bool y if SPARC64
369 config ARCH_SPARSEMEM_ENABLE
370 def_bool y if SPARC64
371 select SPARSEMEM_VMEMMAP_ENABLE
373 config ARCH_SPARSEMEM_DEFAULT
374 def_bool y if SPARC64
379 bool "SMT (Hyperthreading) scheduler support"
380 depends on SPARC64 && SMP
383 SMT scheduler support improves the CPU scheduler's decision making
384 when dealing with SPARC cpus at a cost of slightly increased overhead
385 in some places. If unsure say N here.
388 bool "Multi-core scheduler support"
389 depends on SPARC64 && SMP
392 Multi-core scheduler support improves the CPU scheduler's decision
393 making when dealing with multi-core CPU chips at a cost of slightly
394 increased overhead in some places. If unsure say N here.
397 source "kernel/Kconfig.preempt"
401 bool "Default bootloader kernel arguments"
405 string "Initial kernel command string"
406 depends on CMDLINE_BOOL
407 default "console=ttyS0,9600 root=/dev/sda1"
409 Say Y here if you want to be able to pass default arguments to
410 the kernel. This will be overridden by the bootloader, if you
411 use one (such as SILO). This is most useful if you want to boot
412 a kernel from TFTP, and want default options to be available
413 with having them passed on the command line.
415 NOTE: This option WILL override the PROM bootargs setting!
421 Enable power management and CPU standby features on supported
425 tristate "Sun4m LED driver"
428 This driver toggles the front-panel LED on sun4m systems
429 in a user-specifiable manner. Its state can be probed
430 by reading /proc/led and its blinking mode can be changed
431 via writes to /proc/led
433 config SERIAL_CONSOLE
438 If you say Y here, it will be possible to use a serial port as the
439 system console (the system console is the device which receives all
440 kernel messages and warnings and which allows logins in single user
441 mode). This could be useful if some terminal or printer is connected
444 Even if you say Y here, the currently visible virtual console
445 (/dev/tty0) will still be used as the system console by default, but
446 you can alter that using a kernel command line option such as
447 "console=ttyS1". (Try "man bootparam" or see the documentation of
448 your boot loader (silo) about how to pass options to the kernel at
451 If you don't have a graphics card installed and you say Y here, the
452 kernel will automatically use the first serial line, /dev/ttyS0, as
458 bool "Sparc Leon processor family"
461 If you say Y here if you are running on a SPARC-LEON processor.
462 The LEON processor is a synthesizable VHDL model of the
463 SPARC-v8 standard. LEON is part of the GRLIB collection of
464 IP cores that are distributed under GPL. GRLIB can be downloaded
465 from www.gaisler.com. You can download a sparc-linux cross-compilation
466 toolchain at www.gaisler.com.
469 menu "U-Boot options"
471 config UBOOT_LOAD_ADDR
472 hex "uImage Load Address"
475 U-Boot kernel load address, the address in physical address space
476 where u-boot will place the Linux kernel before booting it.
477 This address is normally the base address of main memory + 0x4000.
479 config UBOOT_FLASH_ADDR
480 hex "uImage.o Load Address"
483 Optional setting only affecting the uImage.o ELF-image used to
484 download the uImage file to the target using a ELF-loader other than
485 U-Boot. It may for example be used to download an uImage to FLASH with
486 the GRMON utility before even starting u-boot.
488 config UBOOT_ENTRY_ADDR
489 hex "uImage Entry Address"
492 Do not change this unless you know what you're doing. This is
493 hardcoded by the SPARC32 and LEON port.
495 This is the virtual address u-boot jumps to when booting the Linux
503 menu "Bus options (PCI etc.)"
513 bool "Sun Logical Domains support"
516 Say Y here is you want to support virtual devices via
520 bool "Support for PCI and PS/2 keyboard/mouse"
522 Find out whether your system includes a PCI bus. PCI is the name of
523 a bus system, i.e. the way the CPU talks to the other stuff inside
524 your box. If you say Y here, the kernel will include drivers and
525 infrastructure code to support PCI bus devices.
527 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
528 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
529 All of these platforms are extremely obscure, so say N if unsure.
532 def_bool PCI if SPARC64
537 source "drivers/pci/Kconfig"
539 source "drivers/pcmcia/Kconfig"
541 config SUN_OPENPROMFS
542 tristate "Openprom tree appears in /proc/openprom"
544 If you say Y, the OpenPROM device tree will be available as a
545 virtual file system, which you can mount to /proc/openprom by "mount
546 -t openpromfs none /proc/openprom".
548 To compile the /proc/openprom support as a module, choose M here: the
549 module will be called openpromfs.
551 Only choose N if you know in advance that you will not need to modify
552 OpenPROM settings on the running system.
558 depends on SPARC32 && PCI
563 depends on SPARC64 && PCI
567 menu "Executable file formats"
569 source "fs/Kconfig.binfmt"
575 select COMPAT_BINFMT_ELF
577 config SYSVIPC_COMPAT
579 depends on COMPAT && SYSVIPC
586 source "drivers/Kconfig"
588 source "drivers/sbus/char/Kconfig"
592 source "arch/sparc/Kconfig.debug"
594 source "security/Kconfig"
596 source "crypto/Kconfig"