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_32BIT_OFF_T
53 select ARCH_HAS_SYNC_DMA_FOR_CPU
54 select GENERIC_ATOMIC64
61 select HAVE_FUNCTION_TRACER
62 select HAVE_FUNCTION_GRAPH_TRACER
63 select HAVE_KRETPROBES
65 select HAVE_RCU_TABLE_FREE if SMP
66 select HAVE_RCU_TABLE_NO_INVALIDATE if HAVE_RCU_TABLE_FREE
67 select HAVE_MEMBLOCK_NODE_MAP
68 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
69 select HAVE_DYNAMIC_FTRACE
70 select HAVE_FTRACE_MCOUNT_RECORD
71 select HAVE_SYSCALL_TRACEPOINTS
72 select HAVE_CONTEXT_TRACKING
73 select HAVE_DEBUG_KMEMLEAK
79 select RTC_DRV_STARFIRE
80 select HAVE_PERF_EVENTS
81 select PERF_USE_VMALLOC
82 select IRQ_PREFLOW_FASTEOI
83 select ARCH_HAVE_NMI_SAFE_CMPXCHG
84 select HAVE_C_RECORDMCOUNT
85 select HAVE_ARCH_AUDITSYSCALL
86 select ARCH_SUPPORTS_ATOMIC_RMW
88 select HAVE_REGS_AND_STACK_ACCESS_API
89 select ARCH_USE_QUEUED_RWLOCKS
90 select ARCH_USE_QUEUED_SPINLOCKS
91 select GENERIC_TIME_VSYSCALL
92 select ARCH_CLOCKSOURCE_DATA
93 select ARCH_HAS_PTE_SPECIAL
94 select PCI_DOMAINS if PCI
95 select ARCH_HAS_GIGANTIC_PAGE
99 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
100 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
102 config ARCH_PROC_KCORE_TEXT
105 config CPU_BIG_ENDIAN
112 config STACKTRACE_SUPPORT
116 config LOCKDEP_SUPPORT
120 config ARCH_HIBERNATION_POSSIBLE
121 def_bool y if SPARC64
127 config HAVE_SETUP_PER_CPU_AREA
128 def_bool y if SPARC64
130 config NEED_PER_CPU_EMBED_FIRST_CHUNK
131 def_bool y if SPARC64
133 config NEED_PER_CPU_PAGE_FIRST_CHUNK
134 def_bool y if SPARC64
148 config GENERIC_ISA_DMA
152 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
153 def_bool y if SPARC64
155 config PGTABLE_LEVELS
159 config ARCH_SUPPORTS_UPROBES
160 def_bool y if SPARC64
162 menu "Processor type and features"
165 bool "Symmetric multi-processing support"
167 This enables support for systems with more than one CPU. If you have
168 a system with only one CPU, say N. If you have a system with more
171 If you say N here, the kernel will run on uni- and multiprocessor
172 machines, but will use only one CPU of a multiprocessor machine. If
173 you say Y here, the kernel will run on many, but not all,
174 uniprocessor machines. On a uniprocessor machine, the kernel
175 will run faster if you say N here.
177 People using multiprocessor machines who say Y here should also say
178 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
179 Management" code will be disabled if you say Y here.
181 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
182 available at <http://www.tldp.org/docs.html#howto>.
184 If you don't know what to do here, say N.
187 int "Maximum number of CPUs"
189 range 2 32 if SPARC32
190 range 2 4096 if SPARC64
191 default 32 if SPARC32
192 default 4096 if SPARC64
194 source "kernel/Kconfig.hz"
196 config GENERIC_HWEIGHT
200 config GENERIC_CALIBRATE_DELAY
204 config ARCH_MAY_HAVE_PC_FDC
208 config EMULATED_CMPXCHG
212 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
213 is emulated, and therefore it is not completely atomic.
219 depends on SPARC32 && SMP
224 depends on SPARC64 && SMP
227 bool "Support for early boot text console"
231 Say Y here to enable a faster early framebuffer boot console.
234 bool "Enable seccomp to safely compute untrusted bytecode"
235 depends on SPARC64 && PROC_FS
238 This kernel feature is useful for number crunching applications
239 that may need to compute untrusted bytecode during their
240 execution. By using pipes or other transports made available to
241 the process as file descriptors supporting the read/write
242 syscalls, it's possible to isolate those applications in
243 their own address space using seccomp. Once seccomp is
244 enabled via /proc/<pid>/seccomp, it cannot be disabled
245 and the task is only allowed to execute a few safe syscalls
246 defined by each seccomp mode.
248 If unsure, say Y. Only embedded should say N here.
251 bool "Support for hot-pluggable CPUs"
252 depends on SPARC64 && SMP
254 Say Y here to experiment with turning CPUs off and on. CPUs
255 can be controlled through /sys/devices/system/cpu/cpu#.
256 Say N if you want to disable CPU hotplug.
259 source "drivers/cpufreq/Kconfig"
263 tristate "UltraSPARC-III Memory Controller driver"
267 This adds a driver for the UltraSPARC-III memory controller.
268 Loading this driver allows exact mnemonic strings to be
269 printed in the event of a memory error, so that the faulty DIMM
270 on the motherboard can be matched to the error.
272 If in doubt, say Y, as this information can be very useful.
274 # Global things across all Sun machines.
275 config GENERIC_LOCKBREAK
278 depends on SPARC64 && SMP && PREEMPT
282 depends on SPARC64 && SMP
285 int "Maximum NUMA Nodes (as a power of 2)"
288 depends on NEED_MULTIPLE_NODES
290 Specify the maximum number of NUMA Nodes available on the target
291 system. Increases memory reserved to accommodate various tables.
293 # Some NUMA nodes have memory ranges that span
294 # other nodes. Even though a pfn is valid and
295 # between a node's start and end pfns, it may not
296 # reside on that node. See memmap_init_zone()
298 config NODES_SPAN_OTHER_NODES
300 depends on NEED_MULTIPLE_NODES
302 config ARCH_SELECT_MEMORY_MODEL
303 def_bool y if SPARC64
305 config ARCH_SPARSEMEM_ENABLE
306 def_bool y if SPARC64
307 select SPARSEMEM_VMEMMAP_ENABLE
309 config ARCH_SPARSEMEM_DEFAULT
310 def_bool y if SPARC64
312 config FORCE_MAX_ZONEORDER
313 int "Maximum zone order"
316 The kernel memory allocator divides physically contiguous memory
317 blocks into "zones", where each zone is a power of two number of
318 pages. This option selects the largest power of two that the kernel
319 keeps in the memory allocator. If you need to allocate very large
320 blocks of physically contiguous memory, then you may need to
323 This config option is actually maximum order plus one. For example,
324 a value of 13 means that the largest free memory block is 2^12 pages.
327 source "kernel/power/Kconfig"
331 bool "SMT (Hyperthreading) scheduler support"
332 depends on SPARC64 && SMP
335 SMT scheduler support improves the CPU scheduler's decision making
336 when dealing with SPARC cpus at a cost of slightly increased overhead
337 in some places. If unsure say N here.
340 bool "Multi-core scheduler support"
341 depends on SPARC64 && SMP
344 Multi-core scheduler support improves the CPU scheduler's decision
345 making when dealing with multi-core CPU chips at a cost of slightly
346 increased overhead in some places. If unsure say N here.
349 bool "Default bootloader kernel arguments"
353 string "Initial kernel command string"
354 depends on CMDLINE_BOOL
355 default "console=ttyS0,9600 root=/dev/sda1"
357 Say Y here if you want to be able to pass default arguments to
358 the kernel. This will be overridden by the bootloader, if you
359 use one (such as SILO). This is most useful if you want to boot
360 a kernel from TFTP, and want default options to be available
361 with having them passed on the command line.
363 NOTE: This option WILL override the PROM bootargs setting!
369 Enable power management and CPU standby features on supported
373 tristate "Sun4m LED driver"
376 This driver toggles the front-panel LED on sun4m systems
377 in a user-specifiable manner. Its state can be probed
378 by reading /proc/led and its blinking mode can be changed
379 via writes to /proc/led
381 config SERIAL_CONSOLE
386 If you say Y here, it will be possible to use a serial port as the
387 system console (the system console is the device which receives all
388 kernel messages and warnings and which allows logins in single user
389 mode). This could be useful if some terminal or printer is connected
392 Even if you say Y here, the currently visible virtual console
393 (/dev/tty0) will still be used as the system console by default, but
394 you can alter that using a kernel command line option such as
395 "console=ttyS1". (Try "man bootparam" or see the documentation of
396 your boot loader (silo) about how to pass options to the kernel at
399 If you don't have a graphics card installed and you say Y here, the
400 kernel will automatically use the first serial line, /dev/ttyS0, as
406 bool "Sparc Leon processor family"
408 select USB_EHCI_BIG_ENDIAN_MMIO
409 select USB_EHCI_BIG_ENDIAN_DESC
410 select USB_UHCI_BIG_ENDIAN_MMIO
411 select USB_UHCI_BIG_ENDIAN_DESC
413 If you say Y here if you are running on a SPARC-LEON processor.
414 The LEON processor is a synthesizable VHDL model of the
415 SPARC-v8 standard. LEON is part of the GRLIB collection of
416 IP cores that are distributed under GPL. GRLIB can be downloaded
417 from www.gaisler.com. You can download a sparc-linux cross-compilation
418 toolchain at www.gaisler.com.
421 menu "U-Boot options"
423 config UBOOT_LOAD_ADDR
424 hex "uImage Load Address"
427 U-Boot kernel load address, the address in physical address space
428 where u-boot will place the Linux kernel before booting it.
429 This address is normally the base address of main memory + 0x4000.
431 config UBOOT_FLASH_ADDR
432 hex "uImage.o Load Address"
435 Optional setting only affecting the uImage.o ELF-image used to
436 download the uImage file to the target using a ELF-loader other than
437 U-Boot. It may for example be used to download an uImage to FLASH with
438 the GRMON utility before even starting u-boot.
440 config UBOOT_ENTRY_ADDR
441 hex "uImage Entry Address"
444 Do not change this unless you know what you're doing. This is
445 hardcoded by the SPARC32 and LEON port.
447 This is the virtual address u-boot jumps to when booting the Linux
455 menu "Bus options (PCI etc.)"
465 bool "Sun Logical Domains support"
468 Say Y here is you want to support virtual devices via
473 depends on PCI && SPARC32 && !SPARC_LEON
478 depends on PCI && SPARC_LEON
482 bool "GRPCI Host Bridge Support"
486 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
487 PCI host controller is typically found in GRLIB SPARC32/LEON
488 systems. The driver has one property (all_pci_errors) controlled
489 from the bootloader that makes the GRPCI to generate interrupts
490 on detected PCI Parity and System errors.
493 bool "GRPCI2 Host Bridge Support"
497 Say Y here to include the GRPCI2 Host Bridge Driver.
499 config SUN_OPENPROMFS
500 tristate "Openprom tree appears in /proc/openprom"
502 If you say Y, the OpenPROM device tree will be available as a
503 virtual file system, which you can mount to /proc/openprom by "mount
504 -t openpromfs none /proc/openprom".
506 To compile the /proc/openprom support as a module, choose M here: the
507 module will be called openpromfs.
509 Only choose N if you know in advance that you will not need to modify
510 OpenPROM settings on the running system.
516 depends on SPARC64 && PCI
518 config SPARC64_PCI_MSI
521 depends on SPARC64_PCI && PCI_MSI
529 select COMPAT_BINFMT_ELF
531 select ARCH_WANT_OLD_COMPAT_IPC
532 select COMPAT_OLD_SIGACTION
534 config SYSVIPC_COMPAT
536 depends on COMPAT && SYSVIPC
539 source "drivers/sbus/char/Kconfig"