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
31 select GENERIC_PCI_IOMAP
35 select GENERIC_ATOMIC64
39 select ARCH_SUPPORTS_MSI
40 select HAVE_FUNCTION_TRACER
41 select HAVE_FUNCTION_GRAPH_TRACER
42 select HAVE_FUNCTION_GRAPH_FP_TEST
43 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
44 select HAVE_KRETPROBES
46 select HAVE_RCU_TABLE_FREE if SMP
48 select HAVE_MEMBLOCK_NODE_MAP
49 select HAVE_SYSCALL_WRAPPERS
50 select HAVE_DYNAMIC_FTRACE
51 select HAVE_FTRACE_MCOUNT_RECORD
52 select HAVE_SYSCALL_TRACEPOINTS
56 select RTC_DRV_STARFIRE
57 select HAVE_PERF_EVENTS
58 select PERF_USE_VMALLOC
59 select IRQ_PREFLOW_FASTEOI
60 select ARCH_HAVE_NMI_SAFE_CMPXCHG
61 select HAVE_C_RECORDMCOUNT
65 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
66 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
68 # CONFIG_BITS can be used at source level to get 32/64 bits
74 config ARCH_USES_GETTIMEOFFSET
78 config GENERIC_CMOS_UPDATE
82 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_HWEIGHT
196 default y if !ULTRA_HAS_POPULATION_COUNT
198 config GENERIC_CALIBRATE_DELAY
202 config ARCH_MAY_HAVE_PC_FDC
206 config EMULATED_CMPXCHG
210 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
211 is emulated, and therefore it is not completely atomic.
217 depends on SPARC32 && SMP
222 depends on SPARC64 && SMP
225 bool "Support for early boot text console"
229 Say Y here to enable a faster early framebuffer boot console.
232 prompt "Kernel page size" if SPARC64
233 default SPARC64_PAGE_SIZE_8KB
235 config SPARC64_PAGE_SIZE_8KB
238 This lets you select the page size of the kernel.
240 8KB and 64KB work quite well, since SPARC ELF sections
241 provide for up to 64KB alignment.
243 If you don't know what to do, choose 8KB.
245 config SPARC64_PAGE_SIZE_64KB
251 bool "Enable seccomp to safely compute untrusted bytecode"
252 depends on SPARC64 && PROC_FS
255 This kernel feature is useful for number crunching applications
256 that may need to compute untrusted bytecode during their
257 execution. By using pipes or other transports made available to
258 the process as file descriptors supporting the read/write
259 syscalls, it's possible to isolate those applications in
260 their own address space using seccomp. Once seccomp is
261 enabled via /proc/<pid>/seccomp, it cannot be disabled
262 and the task is only allowed to execute a few safe syscalls
263 defined by each seccomp mode.
265 If unsure, say Y. Only embedded should say N here.
268 bool "Support for hot-pluggable CPUs"
269 depends on SPARC64 && SMP
272 Say Y here to experiment with turning CPUs off and on. CPUs
273 can be controlled through /sys/devices/system/cpu/cpu#.
274 Say N if you want to disable CPU hotplug.
276 source "kernel/time/Kconfig"
279 source "drivers/cpufreq/Kconfig"
282 tristate "UltraSPARC-III CPU Frequency driver"
284 select CPU_FREQ_TABLE
286 This adds the CPUFreq driver for UltraSPARC-III processors.
288 For details, take a look at <file:Documentation/cpu-freq>.
293 tristate "UltraSPARC-IIe CPU Frequency driver"
295 select CPU_FREQ_TABLE
297 This adds the CPUFreq driver for UltraSPARC-IIe processors.
299 For details, take a look at <file:Documentation/cpu-freq>.
306 tristate "UltraSPARC-III Memory Controller driver"
310 This adds a driver for the UltraSPARC-III memory controller.
311 Loading this driver allows exact mnemonic strings to be
312 printed in the event of a memory error, so that the faulty DIMM
313 on the motherboard can be matched to the error.
315 If in doubt, say Y, as this information can be very useful.
317 # Global things across all Sun machines.
318 config GENERIC_LOCKBREAK
321 depends on SPARC64 && SMP && PREEMPT
324 prompt "SPARC64 Huge TLB Page Size"
325 depends on SPARC64 && HUGETLB_PAGE
326 default HUGETLB_PAGE_SIZE_4MB
328 config HUGETLB_PAGE_SIZE_4MB
331 config HUGETLB_PAGE_SIZE_512K
334 config HUGETLB_PAGE_SIZE_64K
335 depends on !SPARC64_PAGE_SIZE_64KB
342 depends on SPARC64 && SMP
347 depends on NEED_MULTIPLE_NODES
349 # Some NUMA nodes have memory ranges that span
350 # other nodes. Even though a pfn is valid and
351 # between a node's start and end pfns, it may not
352 # reside on that node. See memmap_init_zone()
354 config NODES_SPAN_OTHER_NODES
356 depends on NEED_MULTIPLE_NODES
358 config ARCH_SELECT_MEMORY_MODEL
359 def_bool y if SPARC64
361 config ARCH_SPARSEMEM_ENABLE
362 def_bool y if SPARC64
363 select SPARSEMEM_VMEMMAP_ENABLE
365 config ARCH_SPARSEMEM_DEFAULT
366 def_bool y if SPARC64
371 bool "SMT (Hyperthreading) scheduler support"
372 depends on SPARC64 && SMP
375 SMT scheduler support improves the CPU scheduler's decision making
376 when dealing with SPARC cpus at a cost of slightly increased overhead
377 in some places. If unsure say N here.
380 bool "Multi-core scheduler support"
381 depends on SPARC64 && SMP
384 Multi-core scheduler support improves the CPU scheduler's decision
385 making when dealing with multi-core CPU chips at a cost of slightly
386 increased overhead in some places. If unsure say N here.
388 source "kernel/Kconfig.preempt"
391 bool "Default bootloader kernel arguments"
395 string "Initial kernel command string"
396 depends on CMDLINE_BOOL
397 default "console=ttyS0,9600 root=/dev/sda1"
399 Say Y here if you want to be able to pass default arguments to
400 the kernel. This will be overridden by the bootloader, if you
401 use one (such as SILO). This is most useful if you want to boot
402 a kernel from TFTP, and want default options to be available
403 with having them passed on the command line.
405 NOTE: This option WILL override the PROM bootargs setting!
411 Enable power management and CPU standby features on supported
415 tristate "Sun4m LED driver"
418 This driver toggles the front-panel LED on sun4m systems
419 in a user-specifiable manner. Its state can be probed
420 by reading /proc/led and its blinking mode can be changed
421 via writes to /proc/led
423 config SERIAL_CONSOLE
428 If you say Y here, it will be possible to use a serial port as the
429 system console (the system console is the device which receives all
430 kernel messages and warnings and which allows logins in single user
431 mode). This could be useful if some terminal or printer is connected
434 Even if you say Y here, the currently visible virtual console
435 (/dev/tty0) will still be used as the system console by default, but
436 you can alter that using a kernel command line option such as
437 "console=ttyS1". (Try "man bootparam" or see the documentation of
438 your boot loader (silo) about how to pass options to the kernel at
441 If you don't have a graphics card installed and you say Y here, the
442 kernel will automatically use the first serial line, /dev/ttyS0, as
448 bool "Sparc Leon processor family"
451 If you say Y here if you are running on a SPARC-LEON processor.
452 The LEON processor is a synthesizable VHDL model of the
453 SPARC-v8 standard. LEON is part of the GRLIB collection of
454 IP cores that are distributed under GPL. GRLIB can be downloaded
455 from www.gaisler.com. You can download a sparc-linux cross-compilation
456 toolchain at www.gaisler.com.
459 menu "U-Boot options"
461 config UBOOT_LOAD_ADDR
462 hex "uImage Load Address"
465 U-Boot kernel load address, the address in physical address space
466 where u-boot will place the Linux kernel before booting it.
467 This address is normally the base address of main memory + 0x4000.
469 config UBOOT_FLASH_ADDR
470 hex "uImage.o Load Address"
473 Optional setting only affecting the uImage.o ELF-image used to
474 download the uImage file to the target using a ELF-loader other than
475 U-Boot. It may for example be used to download an uImage to FLASH with
476 the GRMON utility before even starting u-boot.
478 config UBOOT_ENTRY_ADDR
479 hex "uImage Entry Address"
482 Do not change this unless you know what you're doing. This is
483 hardcoded by the SPARC32 and LEON port.
485 This is the virtual address u-boot jumps to when booting the Linux
493 menu "Bus options (PCI etc.)"
503 bool "Sun Logical Domains support"
506 Say Y here is you want to support virtual devices via
510 bool "Support for PCI and PS/2 keyboard/mouse"
512 Find out whether your system includes a PCI bus. PCI is the name of
513 a bus system, i.e. the way the CPU talks to the other stuff inside
514 your box. If you say Y here, the kernel will include drivers and
515 infrastructure code to support PCI bus devices.
517 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
518 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
519 All of these platforms are extremely obscure, so say N if unsure.
522 def_bool PCI if SPARC64
529 depends on PCI && SPARC32 && !SPARC_LEON
534 depends on PCI && SPARC_LEON
538 bool "GRPCI2 Host Bridge Support"
542 Say Y here to include the GRPCI2 Host Bridge Driver.
544 source "drivers/pci/Kconfig"
546 source "drivers/pcmcia/Kconfig"
548 config SUN_OPENPROMFS
549 tristate "Openprom tree appears in /proc/openprom"
551 If you say Y, the OpenPROM device tree will be available as a
552 virtual file system, which you can mount to /proc/openprom by "mount
553 -t openpromfs none /proc/openprom".
555 To compile the /proc/openprom support as a module, choose M here: the
556 module will be called openpromfs.
558 Only choose N if you know in advance that you will not need to modify
559 OpenPROM settings on the running system.
565 depends on SPARC64 && PCI
569 menu "Executable file formats"
571 source "fs/Kconfig.binfmt"
577 select COMPAT_BINFMT_ELF
579 config SYSVIPC_COMPAT
581 depends on COMPAT && SYSVIPC
588 source "drivers/Kconfig"
590 source "drivers/sbus/char/Kconfig"
594 source "arch/sparc/Kconfig.debug"
596 source "security/Kconfig"
598 source "crypto/Kconfig"