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
25 select SYSCTL_EXCEPTION_TRACE
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
34 select HAVE_CBPF_JIT if SPARC32
35 select HAVE_EBPF_JIT if SPARC64
36 select HAVE_DEBUG_BUGVERBOSE
37 select GENERIC_SMP_IDLE_THREAD
38 select GENERIC_CLOCKEVENTS
39 select GENERIC_STRNCPY_FROM_USER
40 select GENERIC_STRNLEN_USER
41 select MODULES_USE_ELF_RELA
42 select PCI_SYSCALL if PCI
43 select ODD_RT_SIGACTION
45 select CPU_NO_EFFICIENT_FFS
46 select LOCKDEP_SMALL if LOCKDEP
47 select NEED_DMA_MAP_STATE
48 select NEED_SG_DMA_LENGTH
52 select ARCH_HAS_SYNC_DMA_FOR_CPU
53 select GENERIC_ATOMIC64
60 select HAVE_FUNCTION_TRACER
61 select HAVE_FUNCTION_GRAPH_TRACER
62 select HAVE_KRETPROBES
64 select HAVE_RCU_TABLE_FREE if SMP
65 select HAVE_MEMBLOCK_NODE_MAP
66 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
67 select HAVE_DYNAMIC_FTRACE
68 select HAVE_FTRACE_MCOUNT_RECORD
69 select HAVE_SYSCALL_TRACEPOINTS
70 select HAVE_CONTEXT_TRACKING
71 select HAVE_DEBUG_KMEMLEAK
77 select RTC_DRV_STARFIRE
78 select HAVE_PERF_EVENTS
79 select PERF_USE_VMALLOC
80 select IRQ_PREFLOW_FASTEOI
81 select ARCH_HAVE_NMI_SAFE_CMPXCHG
82 select HAVE_C_RECORDMCOUNT
83 select HAVE_ARCH_AUDITSYSCALL
84 select ARCH_SUPPORTS_ATOMIC_RMW
86 select HAVE_REGS_AND_STACK_ACCESS_API
87 select ARCH_USE_QUEUED_RWLOCKS
88 select ARCH_USE_QUEUED_SPINLOCKS
89 select GENERIC_TIME_VSYSCALL
90 select ARCH_CLOCKSOURCE_DATA
91 select ARCH_HAS_PTE_SPECIAL
92 select PCI_DOMAINS if PCI
96 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
97 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
99 config ARCH_PROC_KCORE_TEXT
102 config CPU_BIG_ENDIAN
109 config STACKTRACE_SUPPORT
113 config LOCKDEP_SUPPORT
117 config ARCH_HIBERNATION_POSSIBLE
118 def_bool y if SPARC64
124 config HAVE_SETUP_PER_CPU_AREA
125 def_bool y if SPARC64
127 config NEED_PER_CPU_EMBED_FIRST_CHUNK
128 def_bool y if SPARC64
130 config NEED_PER_CPU_PAGE_FIRST_CHUNK
131 def_bool y if SPARC64
145 config GENERIC_ISA_DMA
149 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
150 def_bool y if SPARC64
152 config PGTABLE_LEVELS
156 config ARCH_SUPPORTS_UPROBES
157 def_bool y if SPARC64
159 menu "Processor type and features"
162 bool "Symmetric multi-processing support"
164 This enables support for systems with more than one CPU. If you have
165 a system with only one CPU, say N. If you have a system with more
168 If you say N here, the kernel will run on uni- and multiprocessor
169 machines, but will use only one CPU of a multiprocessor machine. If
170 you say Y here, the kernel will run on many, but not all,
171 uniprocessor machines. On a uniprocessor machine, the kernel
172 will run faster if you say N here.
174 People using multiprocessor machines who say Y here should also say
175 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
176 Management" code will be disabled if you say Y here.
178 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
179 available at <http://www.tldp.org/docs.html#howto>.
181 If you don't know what to do here, say N.
184 int "Maximum number of CPUs"
186 range 2 32 if SPARC32
187 range 2 4096 if SPARC64
188 default 32 if SPARC32
189 default 4096 if SPARC64
191 source "kernel/Kconfig.hz"
193 config RWSEM_GENERIC_SPINLOCK
197 config RWSEM_XCHGADD_ALGORITHM
201 config GENERIC_HWEIGHT
205 config GENERIC_CALIBRATE_DELAY
209 config ARCH_MAY_HAVE_PC_FDC
213 config EMULATED_CMPXCHG
217 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
218 is emulated, and therefore it is not completely atomic.
224 depends on SPARC32 && SMP
229 depends on SPARC64 && SMP
232 bool "Support for early boot text console"
236 Say Y here to enable a faster early framebuffer boot console.
239 bool "Enable seccomp to safely compute untrusted bytecode"
240 depends on SPARC64 && PROC_FS
243 This kernel feature is useful for number crunching applications
244 that may need to compute untrusted bytecode during their
245 execution. By using pipes or other transports made available to
246 the process as file descriptors supporting the read/write
247 syscalls, it's possible to isolate those applications in
248 their own address space using seccomp. Once seccomp is
249 enabled via /proc/<pid>/seccomp, it cannot be disabled
250 and the task is only allowed to execute a few safe syscalls
251 defined by each seccomp mode.
253 If unsure, say Y. Only embedded should say N here.
256 bool "Support for hot-pluggable CPUs"
257 depends on SPARC64 && SMP
259 Say Y here to experiment with turning CPUs off and on. CPUs
260 can be controlled through /sys/devices/system/cpu/cpu#.
261 Say N if you want to disable CPU hotplug.
264 source "drivers/cpufreq/Kconfig"
268 tristate "UltraSPARC-III Memory Controller driver"
272 This adds a driver for the UltraSPARC-III memory controller.
273 Loading this driver allows exact mnemonic strings to be
274 printed in the event of a memory error, so that the faulty DIMM
275 on the motherboard can be matched to the error.
277 If in doubt, say Y, as this information can be very useful.
279 # Global things across all Sun machines.
280 config GENERIC_LOCKBREAK
283 depends on SPARC64 && SMP && PREEMPT
287 depends on SPARC64 && SMP
290 int "Maximum NUMA Nodes (as a power of 2)"
293 depends on NEED_MULTIPLE_NODES
295 Specify the maximum number of NUMA Nodes available on the target
296 system. Increases memory reserved to accommodate various tables.
298 # Some NUMA nodes have memory ranges that span
299 # other nodes. Even though a pfn is valid and
300 # between a node's start and end pfns, it may not
301 # reside on that node. See memmap_init_zone()
303 config NODES_SPAN_OTHER_NODES
305 depends on NEED_MULTIPLE_NODES
307 config ARCH_SELECT_MEMORY_MODEL
308 def_bool y if SPARC64
310 config ARCH_SPARSEMEM_ENABLE
311 def_bool y if SPARC64
312 select SPARSEMEM_VMEMMAP_ENABLE
314 config ARCH_SPARSEMEM_DEFAULT
315 def_bool y if SPARC64
317 config FORCE_MAX_ZONEORDER
318 int "Maximum zone order"
321 The kernel memory allocator divides physically contiguous memory
322 blocks into "zones", where each zone is a power of two number of
323 pages. This option selects the largest power of two that the kernel
324 keeps in the memory allocator. If you need to allocate very large
325 blocks of physically contiguous memory, then you may need to
328 This config option is actually maximum order plus one. For example,
329 a value of 13 means that the largest free memory block is 2^12 pages.
332 source "kernel/power/Kconfig"
336 bool "SMT (Hyperthreading) scheduler support"
337 depends on SPARC64 && SMP
340 SMT scheduler support improves the CPU scheduler's decision making
341 when dealing with SPARC cpus at a cost of slightly increased overhead
342 in some places. If unsure say N here.
345 bool "Multi-core scheduler support"
346 depends on SPARC64 && SMP
349 Multi-core scheduler support improves the CPU scheduler's decision
350 making when dealing with multi-core CPU chips at a cost of slightly
351 increased overhead in some places. If unsure say N here.
354 bool "Default bootloader kernel arguments"
358 string "Initial kernel command string"
359 depends on CMDLINE_BOOL
360 default "console=ttyS0,9600 root=/dev/sda1"
362 Say Y here if you want to be able to pass default arguments to
363 the kernel. This will be overridden by the bootloader, if you
364 use one (such as SILO). This is most useful if you want to boot
365 a kernel from TFTP, and want default options to be available
366 with having them passed on the command line.
368 NOTE: This option WILL override the PROM bootargs setting!
374 Enable power management and CPU standby features on supported
378 tristate "Sun4m LED driver"
381 This driver toggles the front-panel LED on sun4m systems
382 in a user-specifiable manner. Its state can be probed
383 by reading /proc/led and its blinking mode can be changed
384 via writes to /proc/led
386 config SERIAL_CONSOLE
391 If you say Y here, it will be possible to use a serial port as the
392 system console (the system console is the device which receives all
393 kernel messages and warnings and which allows logins in single user
394 mode). This could be useful if some terminal or printer is connected
397 Even if you say Y here, the currently visible virtual console
398 (/dev/tty0) will still be used as the system console by default, but
399 you can alter that using a kernel command line option such as
400 "console=ttyS1". (Try "man bootparam" or see the documentation of
401 your boot loader (silo) about how to pass options to the kernel at
404 If you don't have a graphics card installed and you say Y here, the
405 kernel will automatically use the first serial line, /dev/ttyS0, as
411 bool "Sparc Leon processor family"
413 select USB_EHCI_BIG_ENDIAN_MMIO
414 select USB_EHCI_BIG_ENDIAN_DESC
415 select USB_UHCI_BIG_ENDIAN_MMIO
416 select USB_UHCI_BIG_ENDIAN_DESC
418 If you say Y here if you are running on a SPARC-LEON processor.
419 The LEON processor is a synthesizable VHDL model of the
420 SPARC-v8 standard. LEON is part of the GRLIB collection of
421 IP cores that are distributed under GPL. GRLIB can be downloaded
422 from www.gaisler.com. You can download a sparc-linux cross-compilation
423 toolchain at www.gaisler.com.
426 menu "U-Boot options"
428 config UBOOT_LOAD_ADDR
429 hex "uImage Load Address"
432 U-Boot kernel load address, the address in physical address space
433 where u-boot will place the Linux kernel before booting it.
434 This address is normally the base address of main memory + 0x4000.
436 config UBOOT_FLASH_ADDR
437 hex "uImage.o Load Address"
440 Optional setting only affecting the uImage.o ELF-image used to
441 download the uImage file to the target using a ELF-loader other than
442 U-Boot. It may for example be used to download an uImage to FLASH with
443 the GRMON utility before even starting u-boot.
445 config UBOOT_ENTRY_ADDR
446 hex "uImage Entry Address"
449 Do not change this unless you know what you're doing. This is
450 hardcoded by the SPARC32 and LEON port.
452 This is the virtual address u-boot jumps to when booting the Linux
460 menu "Bus options (PCI etc.)"
470 bool "Sun Logical Domains support"
473 Say Y here is you want to support virtual devices via
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 config SUN_OPENPROMFS
505 tristate "Openprom tree appears in /proc/openprom"
507 If you say Y, the OpenPROM device tree will be available as a
508 virtual file system, which you can mount to /proc/openprom by "mount
509 -t openpromfs none /proc/openprom".
511 To compile the /proc/openprom support as a module, choose M here: the
512 module will be called openpromfs.
514 Only choose N if you know in advance that you will not need to modify
515 OpenPROM settings on the running system.
521 depends on SPARC64 && PCI
523 config SPARC64_PCI_MSI
526 depends on SPARC64_PCI && PCI_MSI
534 select COMPAT_BINFMT_ELF
536 select ARCH_WANT_OLD_COMPAT_IPC
537 select COMPAT_OLD_SIGACTION
539 config SYSVIPC_COMPAT
541 depends on COMPAT && SYSVIPC
544 source "drivers/sbus/char/Kconfig"