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_ARCH_JUMP_LABEL if SPARC64
29 select GENERIC_IRQ_SHOW
30 select ARCH_WANT_IPC_PARSE_VERSION
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
33 select HAVE_CBPF_JIT if SPARC32
34 select HAVE_EBPF_JIT 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 CPU_NO_EFFICIENT_FFS
44 select LOCKDEP_SMALL if LOCKDEP
45 select NEED_DMA_MAP_STATE
46 select NEED_SG_DMA_LENGTH
50 select ARCH_HAS_SYNC_DMA_FOR_CPU
51 select GENERIC_ATOMIC64
58 select HAVE_FUNCTION_TRACER
59 select HAVE_FUNCTION_GRAPH_TRACER
60 select HAVE_KRETPROBES
62 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
75 select RTC_DRV_STARFIRE
76 select HAVE_PERF_EVENTS
77 select PERF_USE_VMALLOC
78 select IRQ_PREFLOW_FASTEOI
79 select ARCH_HAVE_NMI_SAFE_CMPXCHG
80 select HAVE_C_RECORDMCOUNT
81 select HAVE_ARCH_AUDITSYSCALL
82 select ARCH_SUPPORTS_ATOMIC_RMW
84 select HAVE_REGS_AND_STACK_ACCESS_API
85 select ARCH_USE_QUEUED_RWLOCKS
86 select ARCH_USE_QUEUED_SPINLOCKS
87 select GENERIC_TIME_VSYSCALL
88 select ARCH_CLOCKSOURCE_DATA
89 select ARCH_HAS_PTE_SPECIAL
93 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
94 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
96 config ARCH_PROC_KCORE_TEXT
106 config STACKTRACE_SUPPORT
110 config LOCKDEP_SUPPORT
114 config ARCH_HIBERNATION_POSSIBLE
115 def_bool y if SPARC64
121 config HAVE_SETUP_PER_CPU_AREA
122 def_bool y if SPARC64
124 config NEED_PER_CPU_EMBED_FIRST_CHUNK
125 def_bool y if SPARC64
127 config NEED_PER_CPU_PAGE_FIRST_CHUNK
128 def_bool y if SPARC64
142 config GENERIC_ISA_DMA
146 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
147 def_bool y if SPARC64
149 config PGTABLE_LEVELS
153 config ARCH_SUPPORTS_UPROBES
154 def_bool y if SPARC64
156 menu "Processor type and features"
159 bool "Symmetric multi-processing support"
161 This enables support for systems with more than one CPU. If you have
162 a system with only one CPU, say N. If you have a system with more
165 If you say N here, the kernel will run on uni- and multiprocessor
166 machines, but will use only one CPU of a multiprocessor machine. If
167 you say Y here, the kernel will run on many, but not all,
168 uniprocessor machines. On a uniprocessor machine, the kernel
169 will run faster if you say N here.
171 People using multiprocessor machines who say Y here should also say
172 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
173 Management" code will be disabled if you say Y here.
175 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
176 available at <http://www.tldp.org/docs.html#howto>.
178 If you don't know what to do here, say N.
181 int "Maximum number of CPUs"
183 range 2 32 if SPARC32
184 range 2 4096 if SPARC64
185 default 32 if SPARC32
186 default 4096 if SPARC64
188 source kernel/Kconfig.hz
190 config RWSEM_GENERIC_SPINLOCK
194 config RWSEM_XCHGADD_ALGORITHM
198 config GENERIC_HWEIGHT
202 config GENERIC_CALIBRATE_DELAY
206 config ARCH_MAY_HAVE_PC_FDC
210 config EMULATED_CMPXCHG
214 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
215 is emulated, and therefore it is not completely atomic.
221 depends on SPARC32 && SMP
226 depends on SPARC64 && SMP
229 bool "Support for early boot text console"
233 Say Y here to enable a faster early framebuffer boot console.
236 bool "Enable seccomp to safely compute untrusted bytecode"
237 depends on SPARC64 && PROC_FS
240 This kernel feature is useful for number crunching applications
241 that may need to compute untrusted bytecode during their
242 execution. By using pipes or other transports made available to
243 the process as file descriptors supporting the read/write
244 syscalls, it's possible to isolate those applications in
245 their own address space using seccomp. Once seccomp is
246 enabled via /proc/<pid>/seccomp, it cannot be disabled
247 and the task is only allowed to execute a few safe syscalls
248 defined by each seccomp mode.
250 If unsure, say Y. Only embedded should say N here.
253 bool "Support for hot-pluggable CPUs"
254 depends on SPARC64 && SMP
256 Say Y here to experiment with turning CPUs off and on. CPUs
257 can be controlled through /sys/devices/system/cpu/cpu#.
258 Say N if you want to disable CPU hotplug.
261 source "drivers/cpufreq/Kconfig"
265 tristate "UltraSPARC-III Memory Controller driver"
269 This adds a driver for the UltraSPARC-III memory controller.
270 Loading this driver allows exact mnemonic strings to be
271 printed in the event of a memory error, so that the faulty DIMM
272 on the motherboard can be matched to the error.
274 If in doubt, say Y, as this information can be very useful.
276 # Global things across all Sun machines.
277 config GENERIC_LOCKBREAK
280 depends on SPARC64 && SMP && PREEMPT
284 depends on SPARC64 && SMP
287 int "Maximum NUMA Nodes (as a power of 2)"
290 depends on NEED_MULTIPLE_NODES
292 Specify the maximum number of NUMA Nodes available on the target
293 system. Increases memory reserved to accommodate various tables.
295 # Some NUMA nodes have memory ranges that span
296 # other nodes. Even though a pfn is valid and
297 # between a node's start and end pfns, it may not
298 # reside on that node. See memmap_init_zone()
300 config NODES_SPAN_OTHER_NODES
302 depends on NEED_MULTIPLE_NODES
304 config ARCH_SELECT_MEMORY_MODEL
305 def_bool y if SPARC64
307 config ARCH_SPARSEMEM_ENABLE
308 def_bool y if SPARC64
309 select SPARSEMEM_VMEMMAP_ENABLE
311 config ARCH_SPARSEMEM_DEFAULT
312 def_bool y if SPARC64
314 config FORCE_MAX_ZONEORDER
315 int "Maximum zone order"
318 The kernel memory allocator divides physically contiguous memory
319 blocks into "zones", where each zone is a power of two number of
320 pages. This option selects the largest power of two that the kernel
321 keeps in the memory allocator. If you need to allocate very large
322 blocks of physically contiguous memory, then you may need to
325 This config option is actually maximum order plus one. For example,
326 a value of 13 means that the largest free memory block is 2^12 pages.
329 source "kernel/power/Kconfig"
333 bool "SMT (Hyperthreading) scheduler support"
334 depends on SPARC64 && SMP
337 SMT scheduler support improves the CPU scheduler's decision making
338 when dealing with SPARC cpus at a cost of slightly increased overhead
339 in some places. If unsure say N here.
342 bool "Multi-core scheduler support"
343 depends on SPARC64 && SMP
346 Multi-core scheduler support improves the CPU scheduler's decision
347 making when dealing with multi-core CPU chips at a cost of slightly
348 increased overhead in some places. If unsure say N here.
351 bool "Default bootloader kernel arguments"
355 string "Initial kernel command string"
356 depends on CMDLINE_BOOL
357 default "console=ttyS0,9600 root=/dev/sda1"
359 Say Y here if you want to be able to pass default arguments to
360 the kernel. This will be overridden by the bootloader, if you
361 use one (such as SILO). This is most useful if you want to boot
362 a kernel from TFTP, and want default options to be available
363 with having them passed on the command line.
365 NOTE: This option WILL override the PROM bootargs setting!
371 Enable power management and CPU standby features on supported
375 tristate "Sun4m LED driver"
378 This driver toggles the front-panel LED on sun4m systems
379 in a user-specifiable manner. Its state can be probed
380 by reading /proc/led and its blinking mode can be changed
381 via writes to /proc/led
383 config SERIAL_CONSOLE
388 If you say Y here, it will be possible to use a serial port as the
389 system console (the system console is the device which receives all
390 kernel messages and warnings and which allows logins in single user
391 mode). This could be useful if some terminal or printer is connected
394 Even if you say Y here, the currently visible virtual console
395 (/dev/tty0) will still be used as the system console by default, but
396 you can alter that using a kernel command line option such as
397 "console=ttyS1". (Try "man bootparam" or see the documentation of
398 your boot loader (silo) about how to pass options to the kernel at
401 If you don't have a graphics card installed and you say Y here, the
402 kernel will automatically use the first serial line, /dev/ttyS0, as
408 bool "Sparc Leon processor family"
410 select USB_EHCI_BIG_ENDIAN_MMIO
411 select USB_EHCI_BIG_ENDIAN_DESC
412 select USB_UHCI_BIG_ENDIAN_MMIO
413 select USB_UHCI_BIG_ENDIAN_DESC
415 If you say Y here if you are running on a SPARC-LEON processor.
416 The LEON processor is a synthesizable VHDL model of the
417 SPARC-v8 standard. LEON is part of the GRLIB collection of
418 IP cores that are distributed under GPL. GRLIB can be downloaded
419 from www.gaisler.com. You can download a sparc-linux cross-compilation
420 toolchain at www.gaisler.com.
423 menu "U-Boot options"
425 config UBOOT_LOAD_ADDR
426 hex "uImage Load Address"
429 U-Boot kernel load address, the address in physical address space
430 where u-boot will place the Linux kernel before booting it.
431 This address is normally the base address of main memory + 0x4000.
433 config UBOOT_FLASH_ADDR
434 hex "uImage.o Load Address"
437 Optional setting only affecting the uImage.o ELF-image used to
438 download the uImage file to the target using a ELF-loader other than
439 U-Boot. It may for example be used to download an uImage to FLASH with
440 the GRMON utility before even starting u-boot.
442 config UBOOT_ENTRY_ADDR
443 hex "uImage Entry Address"
446 Do not change this unless you know what you're doing. This is
447 hardcoded by the SPARC32 and LEON port.
449 This is the virtual address u-boot jumps to when booting the Linux
457 menu "Bus options (PCI etc.)"
467 bool "Sun Logical Domains support"
470 Say Y here is you want to support virtual devices via
474 bool "Support for PCI and PS/2 keyboard/mouse"
476 Find out whether your system includes a PCI bus. PCI is the name of
477 a bus system, i.e. the way the CPU talks to the other stuff inside
478 your box. If you say Y here, the kernel will include drivers and
479 infrastructure code to support PCI bus devices.
481 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
482 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
483 All of these platforms are extremely obscure, so say N if unsure.
486 def_bool PCI if SPARC64
493 depends on PCI && SPARC32 && !SPARC_LEON
498 depends on PCI && SPARC_LEON
502 bool "GRPCI Host Bridge Support"
506 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
507 PCI host controller is typically found in GRLIB SPARC32/LEON
508 systems. The driver has one property (all_pci_errors) controlled
509 from the bootloader that makes the GRPCI to generate interrupts
510 on detected PCI Parity and System errors.
513 bool "GRPCI2 Host Bridge Support"
517 Say Y here to include the GRPCI2 Host Bridge Driver.
519 source "drivers/pci/Kconfig"
521 source "drivers/pcmcia/Kconfig"
523 config SUN_OPENPROMFS
524 tristate "Openprom tree appears in /proc/openprom"
526 If you say Y, the OpenPROM device tree will be available as a
527 virtual file system, which you can mount to /proc/openprom by "mount
528 -t openpromfs none /proc/openprom".
530 To compile the /proc/openprom support as a module, choose M here: the
531 module will be called openpromfs.
533 Only choose N if you know in advance that you will not need to modify
534 OpenPROM settings on the running system.
540 depends on SPARC64 && PCI
542 config SPARC64_PCI_MSI
545 depends on SPARC64_PCI && PCI_MSI
553 select COMPAT_BINFMT_ELF
555 select ARCH_WANT_OLD_COMPAT_IPC
556 select COMPAT_OLD_SIGACTION
558 config SYSVIPC_COMPAT
560 depends on COMPAT && SYSVIPC
563 source "drivers/sbus/char/Kconfig"