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 ARCH_HAS_SG_CHAIN
44 select CPU_NO_EFFICIENT_FFS
45 select LOCKDEP_SMALL if LOCKDEP
46 select NEED_DMA_MAP_STATE
47 select NEED_SG_DMA_LENGTH
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
64 select HAVE_MEMBLOCK_NODE_MAP
65 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
66 select HAVE_DYNAMIC_FTRACE
67 select HAVE_FTRACE_MCOUNT_RECORD
68 select HAVE_SYSCALL_TRACEPOINTS
69 select HAVE_CONTEXT_TRACKING
70 select HAVE_DEBUG_KMEMLEAK
76 select RTC_DRV_STARFIRE
77 select HAVE_PERF_EVENTS
78 select PERF_USE_VMALLOC
79 select IRQ_PREFLOW_FASTEOI
80 select ARCH_HAVE_NMI_SAFE_CMPXCHG
81 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
95 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
96 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
98 config ARCH_PROC_KCORE_TEXT
101 config CPU_BIG_ENDIAN
108 config STACKTRACE_SUPPORT
112 config LOCKDEP_SUPPORT
116 config ARCH_HIBERNATION_POSSIBLE
117 def_bool y if SPARC64
123 config HAVE_SETUP_PER_CPU_AREA
124 def_bool y if SPARC64
126 config NEED_PER_CPU_EMBED_FIRST_CHUNK
127 def_bool y if SPARC64
129 config NEED_PER_CPU_PAGE_FIRST_CHUNK
130 def_bool y if SPARC64
144 config GENERIC_ISA_DMA
148 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
149 def_bool y if SPARC64
151 config PGTABLE_LEVELS
155 config ARCH_SUPPORTS_UPROBES
156 def_bool y if SPARC64
158 menu "Processor type and features"
161 bool "Symmetric multi-processing support"
163 This enables support for systems with more than one CPU. If you have
164 a system with only one CPU, say N. If you have a system with more
167 If you say N here, the kernel will run on uni- and multiprocessor
168 machines, but will use only one CPU of a multiprocessor machine. If
169 you say Y here, the kernel will run on many, but not all,
170 uniprocessor machines. On a uniprocessor machine, the kernel
171 will run faster if you say N here.
173 People using multiprocessor machines who say Y here should also say
174 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
175 Management" code will be disabled if you say Y here.
177 See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
178 available at <http://www.tldp.org/docs.html#howto>.
180 If you don't know what to do here, say N.
183 int "Maximum number of CPUs"
185 range 2 32 if SPARC32
186 range 2 4096 if SPARC64
187 default 32 if SPARC32
188 default 4096 if SPARC64
190 source kernel/Kconfig.hz
192 config RWSEM_GENERIC_SPINLOCK
196 config RWSEM_XCHGADD_ALGORITHM
200 config GENERIC_HWEIGHT
204 config GENERIC_CALIBRATE_DELAY
208 config ARCH_MAY_HAVE_PC_FDC
212 config EMULATED_CMPXCHG
216 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
217 is emulated, and therefore it is not completely atomic.
223 depends on SPARC32 && SMP
228 depends on SPARC64 && SMP
231 bool "Support for early boot text console"
235 Say Y here to enable a faster early framebuffer boot console.
238 bool "Enable seccomp to safely compute untrusted bytecode"
239 depends on SPARC64 && PROC_FS
242 This kernel feature is useful for number crunching applications
243 that may need to compute untrusted bytecode during their
244 execution. By using pipes or other transports made available to
245 the process as file descriptors supporting the read/write
246 syscalls, it's possible to isolate those applications in
247 their own address space using seccomp. Once seccomp is
248 enabled via /proc/<pid>/seccomp, it cannot be disabled
249 and the task is only allowed to execute a few safe syscalls
250 defined by each seccomp mode.
252 If unsure, say Y. Only embedded should say N here.
255 bool "Support for hot-pluggable CPUs"
256 depends on SPARC64 && SMP
258 Say Y here to experiment with turning CPUs off and on. CPUs
259 can be controlled through /sys/devices/system/cpu/cpu#.
260 Say N if you want to disable CPU hotplug.
263 source "drivers/cpufreq/Kconfig"
267 tristate "UltraSPARC-III Memory Controller driver"
271 This adds a driver for the UltraSPARC-III memory controller.
272 Loading this driver allows exact mnemonic strings to be
273 printed in the event of a memory error, so that the faulty DIMM
274 on the motherboard can be matched to the error.
276 If in doubt, say Y, as this information can be very useful.
278 # Global things across all Sun machines.
279 config GENERIC_LOCKBREAK
282 depends on SPARC64 && SMP && PREEMPT
286 depends on SPARC64 && SMP
289 int "Maximum NUMA Nodes (as a power of 2)"
292 depends on NEED_MULTIPLE_NODES
294 Specify the maximum number of NUMA Nodes available on the target
295 system. Increases memory reserved to accommodate various tables.
297 # Some NUMA nodes have memory ranges that span
298 # other nodes. Even though a pfn is valid and
299 # between a node's start and end pfns, it may not
300 # reside on that node. See memmap_init_zone()
302 config NODES_SPAN_OTHER_NODES
304 depends on NEED_MULTIPLE_NODES
306 config ARCH_SELECT_MEMORY_MODEL
307 def_bool y if SPARC64
309 config ARCH_SPARSEMEM_ENABLE
310 def_bool y if SPARC64
311 select SPARSEMEM_VMEMMAP_ENABLE
313 config ARCH_SPARSEMEM_DEFAULT
314 def_bool y if SPARC64
316 config FORCE_MAX_ZONEORDER
317 int "Maximum zone order"
320 The kernel memory allocator divides physically contiguous memory
321 blocks into "zones", where each zone is a power of two number of
322 pages. This option selects the largest power of two that the kernel
323 keeps in the memory allocator. If you need to allocate very large
324 blocks of physically contiguous memory, then you may need to
327 This config option is actually maximum order plus one. For example,
328 a value of 13 means that the largest free memory block is 2^12 pages.
331 source "kernel/power/Kconfig"
335 bool "SMT (Hyperthreading) scheduler support"
336 depends on SPARC64 && SMP
339 SMT scheduler support improves the CPU scheduler's decision making
340 when dealing with SPARC cpus at a cost of slightly increased overhead
341 in some places. If unsure say N here.
344 bool "Multi-core scheduler support"
345 depends on SPARC64 && SMP
348 Multi-core scheduler support improves the CPU scheduler's decision
349 making when dealing with multi-core CPU chips at a cost of slightly
350 increased overhead in some places. If unsure say N here.
352 source "kernel/Kconfig.preempt"
355 bool "Default bootloader kernel arguments"
359 string "Initial kernel command string"
360 depends on CMDLINE_BOOL
361 default "console=ttyS0,9600 root=/dev/sda1"
363 Say Y here if you want to be able to pass default arguments to
364 the kernel. This will be overridden by the bootloader, if you
365 use one (such as SILO). This is most useful if you want to boot
366 a kernel from TFTP, and want default options to be available
367 with having them passed on the command line.
369 NOTE: This option WILL override the PROM bootargs setting!
375 Enable power management and CPU standby features on supported
379 tristate "Sun4m LED driver"
382 This driver toggles the front-panel LED on sun4m systems
383 in a user-specifiable manner. Its state can be probed
384 by reading /proc/led and its blinking mode can be changed
385 via writes to /proc/led
387 config SERIAL_CONSOLE
392 If you say Y here, it will be possible to use a serial port as the
393 system console (the system console is the device which receives all
394 kernel messages and warnings and which allows logins in single user
395 mode). This could be useful if some terminal or printer is connected
398 Even if you say Y here, the currently visible virtual console
399 (/dev/tty0) will still be used as the system console by default, but
400 you can alter that using a kernel command line option such as
401 "console=ttyS1". (Try "man bootparam" or see the documentation of
402 your boot loader (silo) about how to pass options to the kernel at
405 If you don't have a graphics card installed and you say Y here, the
406 kernel will automatically use the first serial line, /dev/ttyS0, as
412 bool "Sparc Leon processor family"
414 select USB_EHCI_BIG_ENDIAN_MMIO
415 select USB_EHCI_BIG_ENDIAN_DESC
416 select USB_UHCI_BIG_ENDIAN_MMIO
417 select USB_UHCI_BIG_ENDIAN_DESC
419 If you say Y here if you are running on a SPARC-LEON processor.
420 The LEON processor is a synthesizable VHDL model of the
421 SPARC-v8 standard. LEON is part of the GRLIB collection of
422 IP cores that are distributed under GPL. GRLIB can be downloaded
423 from www.gaisler.com. You can download a sparc-linux cross-compilation
424 toolchain at www.gaisler.com.
427 menu "U-Boot options"
429 config UBOOT_LOAD_ADDR
430 hex "uImage Load Address"
433 U-Boot kernel load address, the address in physical address space
434 where u-boot will place the Linux kernel before booting it.
435 This address is normally the base address of main memory + 0x4000.
437 config UBOOT_FLASH_ADDR
438 hex "uImage.o Load Address"
441 Optional setting only affecting the uImage.o ELF-image used to
442 download the uImage file to the target using a ELF-loader other than
443 U-Boot. It may for example be used to download an uImage to FLASH with
444 the GRMON utility before even starting u-boot.
446 config UBOOT_ENTRY_ADDR
447 hex "uImage Entry Address"
450 Do not change this unless you know what you're doing. This is
451 hardcoded by the SPARC32 and LEON port.
453 This is the virtual address u-boot jumps to when booting the Linux
461 menu "Bus options (PCI etc.)"
471 bool "Sun Logical Domains support"
474 Say Y here is you want to support virtual devices via
478 bool "Support for PCI and PS/2 keyboard/mouse"
480 Find out whether your system includes a PCI bus. PCI is the name of
481 a bus system, i.e. the way the CPU talks to the other stuff inside
482 your box. If you say Y here, the kernel will include drivers and
483 infrastructure code to support PCI bus devices.
485 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
486 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
487 All of these platforms are extremely obscure, so say N if unsure.
490 def_bool PCI if SPARC64
497 depends on PCI && SPARC32 && !SPARC_LEON
502 depends on PCI && SPARC_LEON
506 bool "GRPCI Host Bridge Support"
510 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
511 PCI host controller is typically found in GRLIB SPARC32/LEON
512 systems. The driver has one property (all_pci_errors) controlled
513 from the bootloader that makes the GRPCI to generate interrupts
514 on detected PCI Parity and System errors.
517 bool "GRPCI2 Host Bridge Support"
521 Say Y here to include the GRPCI2 Host Bridge Driver.
523 source "drivers/pci/Kconfig"
525 source "drivers/pcmcia/Kconfig"
527 config SUN_OPENPROMFS
528 tristate "Openprom tree appears in /proc/openprom"
530 If you say Y, the OpenPROM device tree will be available as a
531 virtual file system, which you can mount to /proc/openprom by "mount
532 -t openpromfs none /proc/openprom".
534 To compile the /proc/openprom support as a module, choose M here: the
535 module will be called openpromfs.
537 Only choose N if you know in advance that you will not need to modify
538 OpenPROM settings on the running system.
544 depends on SPARC64 && PCI
546 config SPARC64_PCI_MSI
549 depends on SPARC64_PCI && PCI_MSI
557 select COMPAT_BINFMT_ELF
559 select ARCH_WANT_OLD_COMPAT_IPC
560 select COMPAT_OLD_SIGACTION
562 config SYSVIPC_COMPAT
564 depends on COMPAT && SYSVIPC
567 source "drivers/sbus/char/Kconfig"