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
15 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
16 select ARCH_MIGHT_HAVE_PC_SERIO
21 select HAVE_ARCH_KGDB if !SMP || SPARC64
22 select HAVE_ARCH_TRACEHOOK
23 select HAVE_EXIT_THREAD
24 select SYSCTL_EXCEPTION_TRACE
28 select HAVE_DMA_API_DEBUG
29 select HAVE_ARCH_JUMP_LABEL if SPARC64
30 select GENERIC_IRQ_SHOW
31 select ARCH_WANT_IPC_PARSE_VERSION
32 select GENERIC_PCI_IOMAP
33 select HAVE_NMI_WATCHDOG if SPARC64
35 select HAVE_DEBUG_BUGVERBOSE
36 select GENERIC_SMP_IDLE_THREAD
37 select GENERIC_CLOCKEVENTS
38 select GENERIC_STRNCPY_FROM_USER
39 select GENERIC_STRNLEN_USER
40 select MODULES_USE_ELF_RELA
41 select ODD_RT_SIGACTION
43 select ARCH_HAS_SG_CHAIN
44 select CPU_NO_EFFICIENT_FFS
45 select HAVE_ARCH_HARDENED_USERCOPY
49 select GENERIC_ATOMIC64
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_KRETPROBES
60 select HAVE_RCU_TABLE_FREE if SMP
62 select HAVE_MEMBLOCK_NODE_MAP
63 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
64 select HAVE_DYNAMIC_FTRACE
65 select HAVE_FTRACE_MCOUNT_RECORD
66 select HAVE_SYSCALL_TRACEPOINTS
67 select HAVE_CONTEXT_TRACKING
68 select HAVE_DEBUG_KMEMLEAK
73 select RTC_DRV_STARFIRE
74 select HAVE_PERF_EVENTS
75 select PERF_USE_VMALLOC
76 select IRQ_PREFLOW_FASTEOI
77 select ARCH_HAVE_NMI_SAFE_CMPXCHG
78 select HAVE_C_RECORDMCOUNT
80 select HAVE_ARCH_AUDITSYSCALL
81 select ARCH_SUPPORTS_ATOMIC_RMW
86 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
87 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
89 config ARCH_PROC_KCORE_TEXT
100 config STACKTRACE_SUPPORT
104 config LOCKDEP_SUPPORT
108 config ARCH_HIBERNATION_POSSIBLE
109 def_bool y if SPARC64
115 config HAVE_SETUP_PER_CPU_AREA
116 def_bool y if SPARC64
118 config NEED_PER_CPU_EMBED_FIRST_CHUNK
119 def_bool y if SPARC64
121 config NEED_PER_CPU_PAGE_FIRST_CHUNK
122 def_bool y if SPARC64
136 config NEED_DMA_MAP_STATE
139 config NEED_SG_DMA_LENGTH
142 config GENERIC_ISA_DMA
146 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
147 def_bool y if SPARC64
149 config PGTABLE_LEVELS
153 source "init/Kconfig"
155 source "kernel/Kconfig.freezer"
157 menu "Processor type and features"
160 bool "Symmetric multi-processing support"
162 This enables support for systems with more than one CPU. If you have
163 a system with only one CPU, say N. If you have a system with more
166 If you say N here, the kernel will run on uni- and multiprocessor
167 machines, but will use only one CPU of a multiprocessor machine. If
168 you say Y here, the kernel will run on many, but not all,
169 uniprocessor machines. On a uniprocessor machine, the kernel
170 will run faster if you say N here.
172 People using multiprocessor machines who say Y here should also say
173 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
174 Management" code will be disabled if you say Y here.
176 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
177 available at <http://www.tldp.org/docs.html#howto>.
179 If you don't know what to do here, say N.
182 int "Maximum number of CPUs"
184 range 2 32 if SPARC32
185 range 2 1024 if SPARC64
186 default 32 if SPARC32
187 default 64 if SPARC64
189 source kernel/Kconfig.hz
191 config RWSEM_GENERIC_SPINLOCK
195 config RWSEM_XCHGADD_ALGORITHM
199 config GENERIC_HWEIGHT
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 bool "Enable seccomp to safely compute untrusted bytecode"
238 depends on SPARC64 && PROC_FS
241 This kernel feature is useful for number crunching applications
242 that may need to compute untrusted bytecode during their
243 execution. By using pipes or other transports made available to
244 the process as file descriptors supporting the read/write
245 syscalls, it's possible to isolate those applications in
246 their own address space using seccomp. Once seccomp is
247 enabled via /proc/<pid>/seccomp, it cannot be disabled
248 and the task is only allowed to execute a few safe syscalls
249 defined by each seccomp mode.
251 If unsure, say Y. Only embedded should say N here.
254 bool "Support for hot-pluggable CPUs"
255 depends on SPARC64 && SMP
257 Say Y here to experiment with turning CPUs off and on. CPUs
258 can be controlled through /sys/devices/system/cpu/cpu#.
259 Say N if you want to disable CPU hotplug.
262 source "drivers/cpufreq/Kconfig"
266 tristate "UltraSPARC-III Memory Controller driver"
270 This adds a driver for the UltraSPARC-III memory controller.
271 Loading this driver allows exact mnemonic strings to be
272 printed in the event of a memory error, so that the faulty DIMM
273 on the motherboard can be matched to the error.
275 If in doubt, say Y, as this information can be very useful.
277 # Global things across all Sun machines.
278 config GENERIC_LOCKBREAK
281 depends on SPARC64 && SMP && PREEMPT
285 depends on SPARC64 && SMP
290 depends on NEED_MULTIPLE_NODES
292 # Some NUMA nodes have memory ranges that span
293 # other nodes. Even though a pfn is valid and
294 # between a node's start and end pfns, it may not
295 # reside on that node. See memmap_init_zone()
297 config NODES_SPAN_OTHER_NODES
299 depends on NEED_MULTIPLE_NODES
301 config ARCH_SELECT_MEMORY_MODEL
302 def_bool y if SPARC64
304 config ARCH_SPARSEMEM_ENABLE
305 def_bool y if SPARC64
306 select SPARSEMEM_VMEMMAP_ENABLE
308 config ARCH_SPARSEMEM_DEFAULT
309 def_bool y if SPARC64
311 config FORCE_MAX_ZONEORDER
312 int "Maximum zone order"
315 The kernel memory allocator divides physically contiguous memory
316 blocks into "zones", where each zone is a power of two number of
317 pages. This option selects the largest power of two that the kernel
318 keeps in the memory allocator. If you need to allocate very large
319 blocks of physically contiguous memory, then you may need to
322 This config option is actually maximum order plus one. For example,
323 a value of 13 means that the largest free memory block is 2^12 pages.
328 source "kernel/power/Kconfig"
332 bool "SMT (Hyperthreading) scheduler support"
333 depends on SPARC64 && SMP
336 SMT scheduler support improves the CPU scheduler's decision making
337 when dealing with SPARC cpus at a cost of slightly increased overhead
338 in some places. If unsure say N here.
341 bool "Multi-core scheduler support"
342 depends on SPARC64 && SMP
345 Multi-core scheduler support improves the CPU scheduler's decision
346 making when dealing with multi-core CPU chips at a cost of slightly
347 increased overhead in some places. If unsure say N here.
349 source "kernel/Kconfig.preempt"
352 bool "Default bootloader kernel arguments"
356 string "Initial kernel command string"
357 depends on CMDLINE_BOOL
358 default "console=ttyS0,9600 root=/dev/sda1"
360 Say Y here if you want to be able to pass default arguments to
361 the kernel. This will be overridden by the bootloader, if you
362 use one (such as SILO). This is most useful if you want to boot
363 a kernel from TFTP, and want default options to be available
364 with having them passed on the command line.
366 NOTE: This option WILL override the PROM bootargs setting!
372 Enable power management and CPU standby features on supported
376 tristate "Sun4m LED driver"
379 This driver toggles the front-panel LED on sun4m systems
380 in a user-specifiable manner. Its state can be probed
381 by reading /proc/led and its blinking mode can be changed
382 via writes to /proc/led
384 config SERIAL_CONSOLE
389 If you say Y here, it will be possible to use a serial port as the
390 system console (the system console is the device which receives all
391 kernel messages and warnings and which allows logins in single user
392 mode). This could be useful if some terminal or printer is connected
395 Even if you say Y here, the currently visible virtual console
396 (/dev/tty0) will still be used as the system console by default, but
397 you can alter that using a kernel command line option such as
398 "console=ttyS1". (Try "man bootparam" or see the documentation of
399 your boot loader (silo) about how to pass options to the kernel at
402 If you don't have a graphics card installed and you say Y here, the
403 kernel will automatically use the first serial line, /dev/ttyS0, as
409 bool "Sparc Leon processor family"
411 select USB_EHCI_BIG_ENDIAN_MMIO
412 select USB_EHCI_BIG_ENDIAN_DESC
414 If you say Y here if you are running on a SPARC-LEON processor.
415 The LEON processor is a synthesizable VHDL model of the
416 SPARC-v8 standard. LEON is part of the GRLIB collection of
417 IP cores that are distributed under GPL. GRLIB can be downloaded
418 from www.gaisler.com. You can download a sparc-linux cross-compilation
419 toolchain at www.gaisler.com.
422 menu "U-Boot options"
424 config UBOOT_LOAD_ADDR
425 hex "uImage Load Address"
428 U-Boot kernel load address, the address in physical address space
429 where u-boot will place the Linux kernel before booting it.
430 This address is normally the base address of main memory + 0x4000.
432 config UBOOT_FLASH_ADDR
433 hex "uImage.o Load Address"
436 Optional setting only affecting the uImage.o ELF-image used to
437 download the uImage file to the target using a ELF-loader other than
438 U-Boot. It may for example be used to download an uImage to FLASH with
439 the GRMON utility before even starting u-boot.
441 config UBOOT_ENTRY_ADDR
442 hex "uImage Entry Address"
445 Do not change this unless you know what you're doing. This is
446 hardcoded by the SPARC32 and LEON port.
448 This is the virtual address u-boot jumps to when booting the Linux
456 menu "Bus options (PCI etc.)"
466 bool "Sun Logical Domains support"
469 Say Y here is you want to support virtual devices via
473 bool "Support for PCI and PS/2 keyboard/mouse"
475 Find out whether your system includes a PCI bus. PCI is the name of
476 a bus system, i.e. the way the CPU talks to the other stuff inside
477 your box. If you say Y here, the kernel will include drivers and
478 infrastructure code to support PCI bus devices.
480 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
481 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
482 All of these platforms are extremely obscure, so say N if unsure.
485 def_bool PCI if SPARC64
492 depends on PCI && SPARC32 && !SPARC_LEON
497 depends on PCI && SPARC_LEON
501 bool "GRPCI Host Bridge Support"
505 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
506 PCI host controller is typically found in GRLIB SPARC32/LEON
507 systems. The driver has one property (all_pci_errors) controlled
508 from the bootloader that makes the GRPCI to generate interrupts
509 on detected PCI Parity and System errors.
512 bool "GRPCI2 Host Bridge Support"
516 Say Y here to include the GRPCI2 Host Bridge Driver.
518 source "drivers/pci/Kconfig"
520 source "drivers/pcmcia/Kconfig"
522 config SUN_OPENPROMFS
523 tristate "Openprom tree appears in /proc/openprom"
525 If you say Y, the OpenPROM device tree will be available as a
526 virtual file system, which you can mount to /proc/openprom by "mount
527 -t openpromfs none /proc/openprom".
529 To compile the /proc/openprom support as a module, choose M here: the
530 module will be called openpromfs.
532 Only choose N if you know in advance that you will not need to modify
533 OpenPROM settings on the running system.
539 depends on SPARC64 && PCI
541 config SPARC64_PCI_MSI
544 depends on SPARC64_PCI && PCI_MSI
548 menu "Executable file formats"
550 source "fs/Kconfig.binfmt"
556 select COMPAT_BINFMT_ELF
558 select ARCH_WANT_OLD_COMPAT_IPC
559 select COMPAT_OLD_SIGACTION
561 config SYSVIPC_COMPAT
563 depends on COMPAT && SYSVIPC
567 def_bool y if COMPAT && KEYS
573 source "drivers/Kconfig"
575 source "drivers/sbus/char/Kconfig"
579 source "arch/sparc/Kconfig.debug"
581 source "security/Kconfig"
583 source "crypto/Kconfig"