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
32 select HAVE_NMI_WATCHDOG if SPARC64
34 select GENERIC_SMP_IDLE_THREAD
35 select GENERIC_CMOS_UPDATE
36 select GENERIC_CLOCKEVENTS
37 select GENERIC_STRNCPY_FROM_USER
38 select GENERIC_STRNLEN_USER
42 select GENERIC_ATOMIC64
47 select ARCH_SUPPORTS_MSI
48 select HAVE_FUNCTION_TRACER
49 select HAVE_FUNCTION_GRAPH_TRACER
50 select HAVE_FUNCTION_GRAPH_FP_TEST
51 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
52 select HAVE_KRETPROBES
54 select HAVE_RCU_TABLE_FREE if SMP
56 select HAVE_MEMBLOCK_NODE_MAP
57 select HAVE_SYSCALL_WRAPPERS
58 select HAVE_DYNAMIC_FTRACE
59 select HAVE_FTRACE_MCOUNT_RECORD
60 select HAVE_SYSCALL_TRACEPOINTS
64 select RTC_DRV_STARFIRE
65 select HAVE_PERF_EVENTS
66 select PERF_USE_VMALLOC
67 select IRQ_PREFLOW_FASTEOI
68 select ARCH_HAVE_NMI_SAFE_CMPXCHG
69 select HAVE_C_RECORDMCOUNT
74 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
75 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
77 # CONFIG_BITS can be used at source level to get 32/64 bits
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"
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_HWEIGHT
193 default y if !ULTRA_HAS_POPULATION_COUNT
195 config GENERIC_CALIBRATE_DELAY
199 config ARCH_MAY_HAVE_PC_FDC
203 config EMULATED_CMPXCHG
207 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
208 is emulated, and therefore it is not completely atomic.
214 depends on SPARC32 && SMP
219 depends on SPARC64 && SMP
222 bool "Support for early boot text console"
226 Say Y here to enable a faster early framebuffer boot console.
229 prompt "Kernel page size" if SPARC64
230 default SPARC64_PAGE_SIZE_8KB
232 config SPARC64_PAGE_SIZE_8KB
235 This lets you select the page size of the kernel.
237 8KB and 64KB work quite well, since SPARC ELF sections
238 provide for up to 64KB alignment.
240 If you don't know what to do, choose 8KB.
242 config SPARC64_PAGE_SIZE_64KB
248 bool "Enable seccomp to safely compute untrusted bytecode"
249 depends on SPARC64 && PROC_FS
252 This kernel feature is useful for number crunching applications
253 that may need to compute untrusted bytecode during their
254 execution. By using pipes or other transports made available to
255 the process as file descriptors supporting the read/write
256 syscalls, it's possible to isolate those applications in
257 their own address space using seccomp. Once seccomp is
258 enabled via /proc/<pid>/seccomp, it cannot be disabled
259 and the task is only allowed to execute a few safe syscalls
260 defined by each seccomp mode.
262 If unsure, say Y. Only embedded should say N here.
265 bool "Support for hot-pluggable CPUs"
266 depends on SPARC64 && SMP
269 Say Y here to experiment with turning CPUs off and on. CPUs
270 can be controlled through /sys/devices/system/cpu/cpu#.
271 Say N if you want to disable CPU hotplug.
274 source "drivers/cpufreq/Kconfig"
277 tristate "UltraSPARC-III CPU Frequency driver"
279 select CPU_FREQ_TABLE
281 This adds the CPUFreq driver for UltraSPARC-III processors.
283 For details, take a look at <file:Documentation/cpu-freq>.
288 tristate "UltraSPARC-IIe CPU Frequency driver"
290 select CPU_FREQ_TABLE
292 This adds the CPUFreq driver for UltraSPARC-IIe processors.
294 For details, take a look at <file:Documentation/cpu-freq>.
301 tristate "UltraSPARC-III Memory Controller driver"
305 This adds a driver for the UltraSPARC-III memory controller.
306 Loading this driver allows exact mnemonic strings to be
307 printed in the event of a memory error, so that the faulty DIMM
308 on the motherboard can be matched to the error.
310 If in doubt, say Y, as this information can be very useful.
312 # Global things across all Sun machines.
313 config GENERIC_LOCKBREAK
316 depends on SPARC64 && SMP && PREEMPT
319 prompt "SPARC64 Huge TLB Page Size"
320 depends on SPARC64 && HUGETLB_PAGE
321 default HUGETLB_PAGE_SIZE_4MB
323 config HUGETLB_PAGE_SIZE_4MB
326 config HUGETLB_PAGE_SIZE_512K
329 config HUGETLB_PAGE_SIZE_64K
330 depends on !SPARC64_PAGE_SIZE_64KB
337 depends on SPARC64 && SMP
342 depends on NEED_MULTIPLE_NODES
344 # Some NUMA nodes have memory ranges that span
345 # other nodes. Even though a pfn is valid and
346 # between a node's start and end pfns, it may not
347 # reside on that node. See memmap_init_zone()
349 config NODES_SPAN_OTHER_NODES
351 depends on NEED_MULTIPLE_NODES
353 config ARCH_SELECT_MEMORY_MODEL
354 def_bool y if SPARC64
356 config ARCH_SPARSEMEM_ENABLE
357 def_bool y if SPARC64
358 select SPARSEMEM_VMEMMAP_ENABLE
360 config ARCH_SPARSEMEM_DEFAULT
361 def_bool y if SPARC64
366 bool "SMT (Hyperthreading) scheduler support"
367 depends on SPARC64 && SMP
370 SMT scheduler support improves the CPU scheduler's decision making
371 when dealing with SPARC cpus at a cost of slightly increased overhead
372 in some places. If unsure say N here.
375 bool "Multi-core scheduler support"
376 depends on SPARC64 && SMP
379 Multi-core scheduler support improves the CPU scheduler's decision
380 making when dealing with multi-core CPU chips at a cost of slightly
381 increased overhead in some places. If unsure say N here.
383 source "kernel/Kconfig.preempt"
386 bool "Default bootloader kernel arguments"
390 string "Initial kernel command string"
391 depends on CMDLINE_BOOL
392 default "console=ttyS0,9600 root=/dev/sda1"
394 Say Y here if you want to be able to pass default arguments to
395 the kernel. This will be overridden by the bootloader, if you
396 use one (such as SILO). This is most useful if you want to boot
397 a kernel from TFTP, and want default options to be available
398 with having them passed on the command line.
400 NOTE: This option WILL override the PROM bootargs setting!
406 Enable power management and CPU standby features on supported
410 tristate "Sun4m LED driver"
413 This driver toggles the front-panel LED on sun4m systems
414 in a user-specifiable manner. Its state can be probed
415 by reading /proc/led and its blinking mode can be changed
416 via writes to /proc/led
418 config SERIAL_CONSOLE
423 If you say Y here, it will be possible to use a serial port as the
424 system console (the system console is the device which receives all
425 kernel messages and warnings and which allows logins in single user
426 mode). This could be useful if some terminal or printer is connected
429 Even if you say Y here, the currently visible virtual console
430 (/dev/tty0) will still be used as the system console by default, but
431 you can alter that using a kernel command line option such as
432 "console=ttyS1". (Try "man bootparam" or see the documentation of
433 your boot loader (silo) about how to pass options to the kernel at
436 If you don't have a graphics card installed and you say Y here, the
437 kernel will automatically use the first serial line, /dev/ttyS0, as
443 bool "Sparc Leon processor family"
446 If you say Y here if you are running on a SPARC-LEON processor.
447 The LEON processor is a synthesizable VHDL model of the
448 SPARC-v8 standard. LEON is part of the GRLIB collection of
449 IP cores that are distributed under GPL. GRLIB can be downloaded
450 from www.gaisler.com. You can download a sparc-linux cross-compilation
451 toolchain at www.gaisler.com.
454 menu "U-Boot options"
456 config UBOOT_LOAD_ADDR
457 hex "uImage Load Address"
460 U-Boot kernel load address, the address in physical address space
461 where u-boot will place the Linux kernel before booting it.
462 This address is normally the base address of main memory + 0x4000.
464 config UBOOT_FLASH_ADDR
465 hex "uImage.o Load Address"
468 Optional setting only affecting the uImage.o ELF-image used to
469 download the uImage file to the target using a ELF-loader other than
470 U-Boot. It may for example be used to download an uImage to FLASH with
471 the GRMON utility before even starting u-boot.
473 config UBOOT_ENTRY_ADDR
474 hex "uImage Entry Address"
477 Do not change this unless you know what you're doing. This is
478 hardcoded by the SPARC32 and LEON port.
480 This is the virtual address u-boot jumps to when booting the Linux
488 menu "Bus options (PCI etc.)"
498 bool "Sun Logical Domains support"
501 Say Y here is you want to support virtual devices via
505 bool "Support for PCI and PS/2 keyboard/mouse"
507 Find out whether your system includes a PCI bus. PCI is the name of
508 a bus system, i.e. the way the CPU talks to the other stuff inside
509 your box. If you say Y here, the kernel will include drivers and
510 infrastructure code to support PCI bus devices.
512 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
513 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
514 All of these platforms are extremely obscure, so say N if unsure.
517 def_bool PCI if SPARC64
524 depends on PCI && SPARC32 && !SPARC_LEON
529 depends on PCI && SPARC_LEON
533 bool "GRPCI2 Host Bridge Support"
537 Say Y here to include the GRPCI2 Host Bridge Driver.
539 source "drivers/pci/Kconfig"
541 source "drivers/pcmcia/Kconfig"
543 config SUN_OPENPROMFS
544 tristate "Openprom tree appears in /proc/openprom"
546 If you say Y, the OpenPROM device tree will be available as a
547 virtual file system, which you can mount to /proc/openprom by "mount
548 -t openpromfs none /proc/openprom".
550 To compile the /proc/openprom support as a module, choose M here: the
551 module will be called openpromfs.
553 Only choose N if you know in advance that you will not need to modify
554 OpenPROM settings on the running system.
560 depends on SPARC64 && PCI
564 menu "Executable file formats"
566 source "fs/Kconfig.binfmt"
572 select COMPAT_BINFMT_ELF
573 select ARCH_WANT_OLD_COMPAT_IPC
575 config SYSVIPC_COMPAT
577 depends on COMPAT && SYSVIPC
581 def_bool y if COMPAT && KEYS
587 source "drivers/Kconfig"
589 source "drivers/sbus/char/Kconfig"
593 source "arch/sparc/Kconfig.debug"
595 source "security/Kconfig"
597 source "crypto/Kconfig"