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 SYSCTL_EXCEPTION_TRACE
24 select ARCH_WANT_OPTIONAL_GPIOLIB
25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
30 select HAVE_DMA_API_DEBUG
31 select HAVE_ARCH_JUMP_LABEL if SPARC64
32 select GENERIC_IRQ_SHOW
33 select ARCH_WANT_IPC_PARSE_VERSION
34 select GENERIC_PCI_IOMAP
35 select HAVE_NMI_WATCHDOG if SPARC64
37 select HAVE_DEBUG_BUGVERBOSE
38 select GENERIC_SMP_IDLE_THREAD
39 select GENERIC_CLOCKEVENTS
40 select GENERIC_STRNCPY_FROM_USER
41 select GENERIC_STRNLEN_USER
42 select MODULES_USE_ELF_RELA
43 select ODD_RT_SIGACTION
45 select ARCH_HAS_SG_CHAIN
49 select GENERIC_ATOMIC64
56 select HAVE_FUNCTION_TRACER
57 select HAVE_FUNCTION_GRAPH_TRACER
58 select HAVE_FUNCTION_GRAPH_FP_TEST
59 select HAVE_KRETPROBES
61 select HAVE_RCU_TABLE_FREE if SMP
63 select HAVE_MEMBLOCK_NODE_MAP
64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
65 select HAVE_DYNAMIC_FTRACE
66 select HAVE_FTRACE_MCOUNT_RECORD
67 select HAVE_SYSCALL_TRACEPOINTS
68 select HAVE_CONTEXT_TRACKING
69 select HAVE_DEBUG_KMEMLEAK
74 select RTC_DRV_STARFIRE
75 select HAVE_PERF_EVENTS
76 select PERF_USE_VMALLOC
77 select IRQ_PREFLOW_FASTEOI
78 select ARCH_HAVE_NMI_SAFE_CMPXCHG
79 select HAVE_C_RECORDMCOUNT
81 select HAVE_ARCH_AUDITSYSCALL
82 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
96 config STACKTRACE_SUPPORT
100 config LOCKDEP_SUPPORT
104 config HAVE_LATENCYTOP_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
314 source "kernel/power/Kconfig"
318 bool "SMT (Hyperthreading) scheduler support"
319 depends on SPARC64 && SMP
322 SMT scheduler support improves the CPU scheduler's decision making
323 when dealing with SPARC cpus at a cost of slightly increased overhead
324 in some places. If unsure say N here.
327 bool "Multi-core scheduler support"
328 depends on SPARC64 && SMP
331 Multi-core scheduler support improves the CPU scheduler's decision
332 making when dealing with multi-core CPU chips at a cost of slightly
333 increased overhead in some places. If unsure say N here.
335 source "kernel/Kconfig.preempt"
338 bool "Default bootloader kernel arguments"
342 string "Initial kernel command string"
343 depends on CMDLINE_BOOL
344 default "console=ttyS0,9600 root=/dev/sda1"
346 Say Y here if you want to be able to pass default arguments to
347 the kernel. This will be overridden by the bootloader, if you
348 use one (such as SILO). This is most useful if you want to boot
349 a kernel from TFTP, and want default options to be available
350 with having them passed on the command line.
352 NOTE: This option WILL override the PROM bootargs setting!
358 Enable power management and CPU standby features on supported
362 tristate "Sun4m LED driver"
365 This driver toggles the front-panel LED on sun4m systems
366 in a user-specifiable manner. Its state can be probed
367 by reading /proc/led and its blinking mode can be changed
368 via writes to /proc/led
370 config SERIAL_CONSOLE
375 If you say Y here, it will be possible to use a serial port as the
376 system console (the system console is the device which receives all
377 kernel messages and warnings and which allows logins in single user
378 mode). This could be useful if some terminal or printer is connected
381 Even if you say Y here, the currently visible virtual console
382 (/dev/tty0) will still be used as the system console by default, but
383 you can alter that using a kernel command line option such as
384 "console=ttyS1". (Try "man bootparam" or see the documentation of
385 your boot loader (silo) about how to pass options to the kernel at
388 If you don't have a graphics card installed and you say Y here, the
389 kernel will automatically use the first serial line, /dev/ttyS0, as
395 bool "Sparc Leon processor family"
397 select USB_EHCI_BIG_ENDIAN_MMIO
398 select USB_EHCI_BIG_ENDIAN_DESC
400 If you say Y here if you are running on a SPARC-LEON processor.
401 The LEON processor is a synthesizable VHDL model of the
402 SPARC-v8 standard. LEON is part of the GRLIB collection of
403 IP cores that are distributed under GPL. GRLIB can be downloaded
404 from www.gaisler.com. You can download a sparc-linux cross-compilation
405 toolchain at www.gaisler.com.
408 menu "U-Boot options"
410 config UBOOT_LOAD_ADDR
411 hex "uImage Load Address"
414 U-Boot kernel load address, the address in physical address space
415 where u-boot will place the Linux kernel before booting it.
416 This address is normally the base address of main memory + 0x4000.
418 config UBOOT_FLASH_ADDR
419 hex "uImage.o Load Address"
422 Optional setting only affecting the uImage.o ELF-image used to
423 download the uImage file to the target using a ELF-loader other than
424 U-Boot. It may for example be used to download an uImage to FLASH with
425 the GRMON utility before even starting u-boot.
427 config UBOOT_ENTRY_ADDR
428 hex "uImage Entry Address"
431 Do not change this unless you know what you're doing. This is
432 hardcoded by the SPARC32 and LEON port.
434 This is the virtual address u-boot jumps to when booting the Linux
442 menu "Bus options (PCI etc.)"
452 bool "Sun Logical Domains support"
455 Say Y here is you want to support virtual devices via
459 bool "Support for PCI and PS/2 keyboard/mouse"
461 Find out whether your system includes a PCI bus. PCI is the name of
462 a bus system, i.e. the way the CPU talks to the other stuff inside
463 your box. If you say Y here, the kernel will include drivers and
464 infrastructure code to support PCI bus devices.
466 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
467 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
468 All of these platforms are extremely obscure, so say N if unsure.
471 def_bool PCI if SPARC64
478 depends on PCI && SPARC32 && !SPARC_LEON
483 depends on PCI && SPARC_LEON
487 bool "GRPCI Host Bridge Support"
491 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
492 PCI host controller is typically found in GRLIB SPARC32/LEON
493 systems. The driver has one property (all_pci_errors) controlled
494 from the bootloader that makes the GRPCI to generate interrupts
495 on detected PCI Parity and System errors.
498 bool "GRPCI2 Host Bridge Support"
502 Say Y here to include the GRPCI2 Host Bridge Driver.
504 source "drivers/pci/Kconfig"
506 source "drivers/pcmcia/Kconfig"
508 config SUN_OPENPROMFS
509 tristate "Openprom tree appears in /proc/openprom"
511 If you say Y, the OpenPROM device tree will be available as a
512 virtual file system, which you can mount to /proc/openprom by "mount
513 -t openpromfs none /proc/openprom".
515 To compile the /proc/openprom support as a module, choose M here: the
516 module will be called openpromfs.
518 Only choose N if you know in advance that you will not need to modify
519 OpenPROM settings on the running system.
525 depends on SPARC64 && PCI
527 config SPARC64_PCI_MSI
530 depends on SPARC64_PCI && PCI_MSI
534 menu "Executable file formats"
536 source "fs/Kconfig.binfmt"
542 select COMPAT_BINFMT_ELF
544 select ARCH_WANT_OLD_COMPAT_IPC
545 select COMPAT_OLD_SIGACTION
547 config SYSVIPC_COMPAT
549 depends on COMPAT && SYSVIPC
553 def_bool y if COMPAT && KEYS
559 source "drivers/Kconfig"
561 source "drivers/sbus/char/Kconfig"
565 source "arch/sparc/Kconfig.debug"
567 source "security/Kconfig"
569 source "crypto/Kconfig"