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 SYSCTL_EXCEPTION_TRACE
22 select ARCH_WANT_OPTIONAL_GPIOLIB
23 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
27 select HAVE_DMA_API_DEBUG
28 select HAVE_ARCH_JUMP_LABEL
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
34 select HAVE_DEBUG_BUGVERBOSE
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_CMOS_UPDATE
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
46 select GENERIC_ATOMIC64
53 select HAVE_FUNCTION_TRACER
54 select HAVE_FUNCTION_GRAPH_TRACER
55 select HAVE_FUNCTION_GRAPH_FP_TEST
56 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
57 select HAVE_KRETPROBES
59 select HAVE_RCU_TABLE_FREE if SMP
61 select HAVE_MEMBLOCK_NODE_MAP
62 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
63 select HAVE_DYNAMIC_FTRACE
64 select HAVE_FTRACE_MCOUNT_RECORD
65 select HAVE_SYSCALL_TRACEPOINTS
66 select HAVE_CONTEXT_TRACKING
67 select HAVE_DEBUG_KMEMLEAK
71 select RTC_DRV_STARFIRE
72 select HAVE_PERF_EVENTS
73 select PERF_USE_VMALLOC
74 select IRQ_PREFLOW_FASTEOI
75 select ARCH_HAVE_NMI_SAFE_CMPXCHG
76 select HAVE_C_RECORDMCOUNT
81 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
82 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
88 config STACKTRACE_SUPPORT
92 config LOCKDEP_SUPPORT
96 config HAVE_LATENCYTOP_SUPPORT
100 config ARCH_HIBERNATION_POSSIBLE
101 def_bool y if SPARC64
107 config HAVE_SETUP_PER_CPU_AREA
108 def_bool y if SPARC64
110 config NEED_PER_CPU_EMBED_FIRST_CHUNK
111 def_bool y if SPARC64
113 config NEED_PER_CPU_PAGE_FIRST_CHUNK
114 def_bool y if SPARC64
128 config NEED_DMA_MAP_STATE
131 config NEED_SG_DMA_LENGTH
134 config GENERIC_ISA_DMA
138 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
139 def_bool y if SPARC64
141 source "init/Kconfig"
143 source "kernel/Kconfig.freezer"
145 menu "Processor type and features"
148 bool "Symmetric multi-processing support"
150 This enables support for systems with more than one CPU. If you have
151 a system with only one CPU, say N. If you have a system with more
154 If you say N here, the kernel will run on single and multiprocessor
155 machines, but will use only one CPU of a multiprocessor machine. If
156 you say Y here, the kernel will run on many, but not all,
157 singleprocessor machines. On a singleprocessor machine, the kernel
158 will run faster if you say N here.
160 People using multiprocessor machines who say Y here should also say
161 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
162 Management" code will be disabled if you say Y here.
164 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
165 available at <http://www.tldp.org/docs.html#howto>.
167 If you don't know what to do here, say N.
170 int "Maximum number of CPUs"
172 range 2 32 if SPARC32
173 range 2 1024 if SPARC64
174 default 32 if SPARC32
175 default 64 if SPARC64
177 source kernel/Kconfig.hz
179 config RWSEM_GENERIC_SPINLOCK
183 config RWSEM_XCHGADD_ALGORITHM
187 config GENERIC_HWEIGHT
191 config GENERIC_CALIBRATE_DELAY
195 config ARCH_MAY_HAVE_PC_FDC
199 config EMULATED_CMPXCHG
203 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
204 is emulated, and therefore it is not completely atomic.
210 depends on SPARC32 && SMP
215 depends on SPARC64 && SMP
218 bool "Support for early boot text console"
222 Say Y here to enable a faster early framebuffer boot console.
225 bool "Enable seccomp to safely compute untrusted bytecode"
226 depends on SPARC64 && PROC_FS
229 This kernel feature is useful for number crunching applications
230 that may need to compute untrusted bytecode during their
231 execution. By using pipes or other transports made available to
232 the process as file descriptors supporting the read/write
233 syscalls, it's possible to isolate those applications in
234 their own address space using seccomp. Once seccomp is
235 enabled via /proc/<pid>/seccomp, it cannot be disabled
236 and the task is only allowed to execute a few safe syscalls
237 defined by each seccomp mode.
239 If unsure, say Y. Only embedded should say N here.
242 bool "Support for hot-pluggable CPUs"
243 depends on SPARC64 && SMP
245 Say Y here to experiment with turning CPUs off and on. CPUs
246 can be controlled through /sys/devices/system/cpu/cpu#.
247 Say N if you want to disable CPU hotplug.
250 source "drivers/cpufreq/Kconfig"
254 tristate "UltraSPARC-III Memory Controller driver"
258 This adds a driver for the UltraSPARC-III memory controller.
259 Loading this driver allows exact mnemonic strings to be
260 printed in the event of a memory error, so that the faulty DIMM
261 on the motherboard can be matched to the error.
263 If in doubt, say Y, as this information can be very useful.
265 # Global things across all Sun machines.
266 config GENERIC_LOCKBREAK
269 depends on SPARC64 && SMP && PREEMPT
273 depends on SPARC64 && SMP
278 depends on NEED_MULTIPLE_NODES
280 # Some NUMA nodes have memory ranges that span
281 # other nodes. Even though a pfn is valid and
282 # between a node's start and end pfns, it may not
283 # reside on that node. See memmap_init_zone()
285 config NODES_SPAN_OTHER_NODES
287 depends on NEED_MULTIPLE_NODES
289 config ARCH_SELECT_MEMORY_MODEL
290 def_bool y if SPARC64
292 config ARCH_SPARSEMEM_ENABLE
293 def_bool y if SPARC64
294 select SPARSEMEM_VMEMMAP_ENABLE
296 config ARCH_SPARSEMEM_DEFAULT
297 def_bool y if SPARC64
302 source "kernel/power/Kconfig"
306 bool "SMT (Hyperthreading) scheduler support"
307 depends on SPARC64 && SMP
310 SMT scheduler support improves the CPU scheduler's decision making
311 when dealing with SPARC cpus at a cost of slightly increased overhead
312 in some places. If unsure say N here.
315 bool "Multi-core scheduler support"
316 depends on SPARC64 && SMP
319 Multi-core scheduler support improves the CPU scheduler's decision
320 making when dealing with multi-core CPU chips at a cost of slightly
321 increased overhead in some places. If unsure say N here.
323 source "kernel/Kconfig.preempt"
326 bool "Default bootloader kernel arguments"
330 string "Initial kernel command string"
331 depends on CMDLINE_BOOL
332 default "console=ttyS0,9600 root=/dev/sda1"
334 Say Y here if you want to be able to pass default arguments to
335 the kernel. This will be overridden by the bootloader, if you
336 use one (such as SILO). This is most useful if you want to boot
337 a kernel from TFTP, and want default options to be available
338 with having them passed on the command line.
340 NOTE: This option WILL override the PROM bootargs setting!
346 Enable power management and CPU standby features on supported
350 tristate "Sun4m LED driver"
353 This driver toggles the front-panel LED on sun4m systems
354 in a user-specifiable manner. Its state can be probed
355 by reading /proc/led and its blinking mode can be changed
356 via writes to /proc/led
358 config SERIAL_CONSOLE
363 If you say Y here, it will be possible to use a serial port as the
364 system console (the system console is the device which receives all
365 kernel messages and warnings and which allows logins in single user
366 mode). This could be useful if some terminal or printer is connected
369 Even if you say Y here, the currently visible virtual console
370 (/dev/tty0) will still be used as the system console by default, but
371 you can alter that using a kernel command line option such as
372 "console=ttyS1". (Try "man bootparam" or see the documentation of
373 your boot loader (silo) about how to pass options to the kernel at
376 If you don't have a graphics card installed and you say Y here, the
377 kernel will automatically use the first serial line, /dev/ttyS0, as
383 bool "Sparc Leon processor family"
385 select USB_EHCI_BIG_ENDIAN_MMIO
386 select USB_EHCI_BIG_ENDIAN_DESC
388 If you say Y here if you are running on a SPARC-LEON processor.
389 The LEON processor is a synthesizable VHDL model of the
390 SPARC-v8 standard. LEON is part of the GRLIB collection of
391 IP cores that are distributed under GPL. GRLIB can be downloaded
392 from www.gaisler.com. You can download a sparc-linux cross-compilation
393 toolchain at www.gaisler.com.
396 menu "U-Boot options"
398 config UBOOT_LOAD_ADDR
399 hex "uImage Load Address"
402 U-Boot kernel load address, the address in physical address space
403 where u-boot will place the Linux kernel before booting it.
404 This address is normally the base address of main memory + 0x4000.
406 config UBOOT_FLASH_ADDR
407 hex "uImage.o Load Address"
410 Optional setting only affecting the uImage.o ELF-image used to
411 download the uImage file to the target using a ELF-loader other than
412 U-Boot. It may for example be used to download an uImage to FLASH with
413 the GRMON utility before even starting u-boot.
415 config UBOOT_ENTRY_ADDR
416 hex "uImage Entry Address"
419 Do not change this unless you know what you're doing. This is
420 hardcoded by the SPARC32 and LEON port.
422 This is the virtual address u-boot jumps to when booting the Linux
430 menu "Bus options (PCI etc.)"
440 bool "Sun Logical Domains support"
443 Say Y here is you want to support virtual devices via
447 bool "Support for PCI and PS/2 keyboard/mouse"
449 Find out whether your system includes a PCI bus. PCI is the name of
450 a bus system, i.e. the way the CPU talks to the other stuff inside
451 your box. If you say Y here, the kernel will include drivers and
452 infrastructure code to support PCI bus devices.
454 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
455 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
456 All of these platforms are extremely obscure, so say N if unsure.
459 def_bool PCI if SPARC64
466 depends on PCI && SPARC32 && !SPARC_LEON
471 depends on PCI && SPARC_LEON
475 bool "GRPCI Host Bridge Support"
479 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
480 PCI host controller is typically found in GRLIB SPARC32/LEON
481 systems. The driver has one property (all_pci_errors) controlled
482 from the bootloader that makes the GRPCI to generate interrupts
483 on detected PCI Parity and System errors.
486 bool "GRPCI2 Host Bridge Support"
490 Say Y here to include the GRPCI2 Host Bridge Driver.
492 source "drivers/pci/Kconfig"
494 source "drivers/pcmcia/Kconfig"
496 config SUN_OPENPROMFS
497 tristate "Openprom tree appears in /proc/openprom"
499 If you say Y, the OpenPROM device tree will be available as a
500 virtual file system, which you can mount to /proc/openprom by "mount
501 -t openpromfs none /proc/openprom".
503 To compile the /proc/openprom support as a module, choose M here: the
504 module will be called openpromfs.
506 Only choose N if you know in advance that you will not need to modify
507 OpenPROM settings on the running system.
513 depends on SPARC64 && PCI
515 config SPARC64_PCI_MSI
518 depends on SPARC64_PCI && PCI_MSI
522 menu "Executable file formats"
524 source "fs/Kconfig.binfmt"
530 select COMPAT_BINFMT_ELF
532 select ARCH_WANT_OLD_COMPAT_IPC
533 select COMPAT_OLD_SIGACTION
535 config SYSVIPC_COMPAT
537 depends on COMPAT && SYSVIPC
541 def_bool y if COMPAT && KEYS
547 source "drivers/Kconfig"
549 source "drivers/sbus/char/Kconfig"
553 source "arch/sparc/Kconfig.debug"
555 source "security/Kconfig"
557 source "crypto/Kconfig"