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
33 select HAVE_BPF_JIT if NET
37 select GENERIC_ATOMIC64
42 select ARCH_SUPPORTS_MSI
43 select HAVE_FUNCTION_TRACER
44 select HAVE_FUNCTION_GRAPH_TRACER
45 select HAVE_FUNCTION_GRAPH_FP_TEST
46 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
47 select HAVE_KRETPROBES
49 select HAVE_RCU_TABLE_FREE if SMP
51 select HAVE_MEMBLOCK_NODE_MAP
52 select HAVE_SYSCALL_WRAPPERS
53 select HAVE_DYNAMIC_FTRACE
54 select HAVE_FTRACE_MCOUNT_RECORD
55 select HAVE_SYSCALL_TRACEPOINTS
59 select RTC_DRV_STARFIRE
60 select HAVE_PERF_EVENTS
61 select PERF_USE_VMALLOC
62 select IRQ_PREFLOW_FASTEOI
63 select ARCH_HAVE_NMI_SAFE_CMPXCHG
64 select HAVE_C_RECORDMCOUNT
69 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
70 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
72 # CONFIG_BITS can be used at source level to get 32/64 bits
78 config GENERIC_CMOS_UPDATE
82 config GENERIC_CLOCKEVENTS
89 config STACKTRACE_SUPPORT
93 config LOCKDEP_SUPPORT
97 config HAVE_LATENCYTOP_SUPPORT
105 config HAVE_SETUP_PER_CPU_AREA
106 def_bool y if SPARC64
108 config NEED_PER_CPU_EMBED_FIRST_CHUNK
109 def_bool y if SPARC64
111 config NEED_PER_CPU_PAGE_FIRST_CHUNK
112 def_bool y if SPARC64
126 config NEED_DMA_MAP_STATE
129 config NEED_SG_DMA_LENGTH
132 config GENERIC_ISA_DMA
139 Generic GPIO API support
141 config ARCH_NO_VIRT_TO_BUS
144 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
145 def_bool y if SPARC64
147 source "init/Kconfig"
149 source "kernel/Kconfig.freezer"
151 menu "Processor type and features"
154 bool "Symmetric multi-processing support"
156 This enables support for systems with more than one CPU. If you have
157 a system with only one CPU, say N. If you have a system with more
160 If you say N here, the kernel will run on single and multiprocessor
161 machines, but will use only one CPU of a multiprocessor machine. If
162 you say Y here, the kernel will run on many, but not all,
163 singleprocessor machines. On a singleprocessor machine, the kernel
164 will run faster if you say N here.
166 People using multiprocessor machines who say Y here should also say
167 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
168 Management" code will be disabled if you say Y here.
170 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
171 available at <http://www.tldp.org/docs.html#howto>.
173 If you don't know what to do here, say N.
176 int "Maximum number of CPUs"
178 range 2 32 if SPARC32
179 range 2 1024 if SPARC64
180 default 32 if SPARC32
181 default 64 if SPARC64
183 source kernel/Kconfig.hz
185 config RWSEM_GENERIC_SPINLOCK
189 config RWSEM_XCHGADD_ALGORITHM
193 config GENERIC_HWEIGHT
195 default y if !ULTRA_HAS_POPULATION_COUNT
197 config GENERIC_CALIBRATE_DELAY
201 config ARCH_MAY_HAVE_PC_FDC
205 config EMULATED_CMPXCHG
209 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
210 is emulated, and therefore it is not completely atomic.
216 depends on SPARC32 && SMP
221 depends on SPARC64 && SMP
224 bool "Support for early boot text console"
228 Say Y here to enable a faster early framebuffer boot console.
231 prompt "Kernel page size" if SPARC64
232 default SPARC64_PAGE_SIZE_8KB
234 config SPARC64_PAGE_SIZE_8KB
237 This lets you select the page size of the kernel.
239 8KB and 64KB work quite well, since SPARC ELF sections
240 provide for up to 64KB alignment.
242 If you don't know what to do, choose 8KB.
244 config SPARC64_PAGE_SIZE_64KB
250 bool "Enable seccomp to safely compute untrusted bytecode"
251 depends on SPARC64 && PROC_FS
254 This kernel feature is useful for number crunching applications
255 that may need to compute untrusted bytecode during their
256 execution. By using pipes or other transports made available to
257 the process as file descriptors supporting the read/write
258 syscalls, it's possible to isolate those applications in
259 their own address space using seccomp. Once seccomp is
260 enabled via /proc/<pid>/seccomp, it cannot be disabled
261 and the task is only allowed to execute a few safe syscalls
262 defined by each seccomp mode.
264 If unsure, say Y. Only embedded should say N here.
267 bool "Support for hot-pluggable CPUs"
268 depends on SPARC64 && SMP
271 Say Y here to experiment with turning CPUs off and on. CPUs
272 can be controlled through /sys/devices/system/cpu/cpu#.
273 Say N if you want to disable CPU hotplug.
275 source "kernel/time/Kconfig"
278 source "drivers/cpufreq/Kconfig"
281 tristate "UltraSPARC-III CPU Frequency driver"
283 select CPU_FREQ_TABLE
285 This adds the CPUFreq driver for UltraSPARC-III processors.
287 For details, take a look at <file:Documentation/cpu-freq>.
292 tristate "UltraSPARC-IIe CPU Frequency driver"
294 select CPU_FREQ_TABLE
296 This adds the CPUFreq driver for UltraSPARC-IIe processors.
298 For details, take a look at <file:Documentation/cpu-freq>.
305 tristate "UltraSPARC-III Memory Controller driver"
309 This adds a driver for the UltraSPARC-III memory controller.
310 Loading this driver allows exact mnemonic strings to be
311 printed in the event of a memory error, so that the faulty DIMM
312 on the motherboard can be matched to the error.
314 If in doubt, say Y, as this information can be very useful.
316 # Global things across all Sun machines.
317 config GENERIC_LOCKBREAK
320 depends on SPARC64 && SMP && PREEMPT
323 prompt "SPARC64 Huge TLB Page Size"
324 depends on SPARC64 && HUGETLB_PAGE
325 default HUGETLB_PAGE_SIZE_4MB
327 config HUGETLB_PAGE_SIZE_4MB
330 config HUGETLB_PAGE_SIZE_512K
333 config HUGETLB_PAGE_SIZE_64K
334 depends on !SPARC64_PAGE_SIZE_64KB
341 depends on SPARC64 && SMP
346 depends on NEED_MULTIPLE_NODES
348 # Some NUMA nodes have memory ranges that span
349 # other nodes. Even though a pfn is valid and
350 # between a node's start and end pfns, it may not
351 # reside on that node. See memmap_init_zone()
353 config NODES_SPAN_OTHER_NODES
355 depends on NEED_MULTIPLE_NODES
357 config ARCH_SELECT_MEMORY_MODEL
358 def_bool y if SPARC64
360 config ARCH_SPARSEMEM_ENABLE
361 def_bool y if SPARC64
362 select SPARSEMEM_VMEMMAP_ENABLE
364 config ARCH_SPARSEMEM_DEFAULT
365 def_bool y if SPARC64
370 bool "SMT (Hyperthreading) scheduler support"
371 depends on SPARC64 && SMP
374 SMT scheduler support improves the CPU scheduler's decision making
375 when dealing with SPARC cpus at a cost of slightly increased overhead
376 in some places. If unsure say N here.
379 bool "Multi-core scheduler support"
380 depends on SPARC64 && SMP
383 Multi-core scheduler support improves the CPU scheduler's decision
384 making when dealing with multi-core CPU chips at a cost of slightly
385 increased overhead in some places. If unsure say N here.
387 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 SPARC64 && PCI
568 menu "Executable file formats"
570 source "fs/Kconfig.binfmt"
576 select COMPAT_BINFMT_ELF
577 select ARCH_WANT_OLD_COMPAT_IPC
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"