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
19 select HAVE_ARCH_KGDB if !SMP || SPARC64
20 select HAVE_ARCH_TRACEHOOK
21 select ARCH_WANT_OPTIONAL_GPIOLIB
26 select HAVE_DMA_API_DEBUG
27 select HAVE_ARCH_JUMP_LABEL
28 select HAVE_GENERIC_HARDIRQS
29 select GENERIC_IRQ_SHOW
30 select USE_GENERIC_SMP_HELPERS if SMP
31 select GENERIC_PCI_IOMAP
32 select HAVE_NMI_WATCHDOG if SPARC64
36 select GENERIC_ATOMIC64
41 select ARCH_SUPPORTS_MSI
42 select HAVE_FUNCTION_TRACER
43 select HAVE_FUNCTION_GRAPH_TRACER
44 select HAVE_FUNCTION_GRAPH_FP_TEST
45 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
46 select HAVE_KRETPROBES
48 select HAVE_RCU_TABLE_FREE if SMP
50 select HAVE_MEMBLOCK_NODE_MAP
51 select HAVE_SYSCALL_WRAPPERS
52 select HAVE_DYNAMIC_FTRACE
53 select HAVE_FTRACE_MCOUNT_RECORD
54 select HAVE_SYSCALL_TRACEPOINTS
58 select RTC_DRV_STARFIRE
59 select HAVE_PERF_EVENTS
60 select PERF_USE_VMALLOC
61 select IRQ_PREFLOW_FASTEOI
62 select ARCH_HAVE_NMI_SAFE_CMPXCHG
63 select HAVE_C_RECORDMCOUNT
67 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
68 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
70 # CONFIG_BITS can be used at source level to get 32/64 bits
76 config GENERIC_CMOS_UPDATE
80 config GENERIC_CLOCKEVENTS
87 config STACKTRACE_SUPPORT
91 config LOCKDEP_SUPPORT
95 config HAVE_LATENCYTOP_SUPPORT
103 config HAVE_SETUP_PER_CPU_AREA
104 def_bool y if SPARC64
106 config NEED_PER_CPU_EMBED_FIRST_CHUNK
107 def_bool y if SPARC64
109 config NEED_PER_CPU_PAGE_FIRST_CHUNK
110 def_bool y if SPARC64
124 config NEED_DMA_MAP_STATE
127 config NEED_SG_DMA_LENGTH
130 config GENERIC_ISA_DMA
137 Generic GPIO API support
139 config ARCH_NO_VIRT_TO_BUS
142 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
143 def_bool y if SPARC64
145 source "init/Kconfig"
147 source "kernel/Kconfig.freezer"
149 menu "Processor type and features"
152 bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
154 This enables support for systems with more than one CPU. If you have
155 a system with only one CPU, say N. If you have a system with more
158 If you say N here, the kernel will run on single and multiprocessor
159 machines, but will use only one CPU of a multiprocessor machine. If
160 you say Y here, the kernel will run on many, but not all,
161 singleprocessor machines. On a singleprocessor machine, the kernel
162 will run faster if you say N here.
164 People using multiprocessor machines who say Y here should also say
165 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
166 Management" code will be disabled if you say Y here.
168 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
169 available at <http://www.tldp.org/docs.html#howto>.
171 If you don't know what to do here, say N.
174 int "Maximum number of CPUs"
176 range 2 32 if SPARC32
177 range 2 1024 if SPARC64
178 default 32 if SPARC32
179 default 64 if SPARC64
181 source kernel/Kconfig.hz
183 config RWSEM_GENERIC_SPINLOCK
187 config RWSEM_XCHGADD_ALGORITHM
191 config GENERIC_HWEIGHT
193 default y if !ULTRA_HAS_POPULATION_COUNT
195 config GENERIC_CALIBRATE_DELAY
199 config ARCH_MAY_HAVE_PC_FDC
203 config EMULATED_CMPXCHG
207 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
208 is emulated, and therefore it is not completely atomic.
214 depends on SPARC32 && SMP
219 depends on SPARC64 && SMP
222 bool "Support for early boot text console"
226 Say Y here to enable a faster early framebuffer boot console.
229 prompt "Kernel page size" if SPARC64
230 default SPARC64_PAGE_SIZE_8KB
232 config SPARC64_PAGE_SIZE_8KB
235 This lets you select the page size of the kernel.
237 8KB and 64KB work quite well, since SPARC ELF sections
238 provide for up to 64KB alignment.
240 If you don't know what to do, choose 8KB.
242 config SPARC64_PAGE_SIZE_64KB
248 bool "Enable seccomp to safely compute untrusted bytecode"
249 depends on SPARC64 && PROC_FS
252 This kernel feature is useful for number crunching applications
253 that may need to compute untrusted bytecode during their
254 execution. By using pipes or other transports made available to
255 the process as file descriptors supporting the read/write
256 syscalls, it's possible to isolate those applications in
257 their own address space using seccomp. Once seccomp is
258 enabled via /proc/<pid>/seccomp, it cannot be disabled
259 and the task is only allowed to execute a few safe syscalls
260 defined by each seccomp mode.
262 If unsure, say Y. Only embedded should say N here.
265 bool "Support for hot-pluggable CPUs"
266 depends on SPARC64 && SMP
269 Say Y here to experiment with turning CPUs off and on. CPUs
270 can be controlled through /sys/devices/system/cpu/cpu#.
271 Say N if you want to disable CPU hotplug.
273 source "kernel/time/Kconfig"
276 source "drivers/cpufreq/Kconfig"
279 tristate "UltraSPARC-III CPU Frequency driver"
281 select CPU_FREQ_TABLE
283 This adds the CPUFreq driver for UltraSPARC-III processors.
285 For details, take a look at <file:Documentation/cpu-freq>.
290 tristate "UltraSPARC-IIe CPU Frequency driver"
292 select CPU_FREQ_TABLE
294 This adds the CPUFreq driver for UltraSPARC-IIe processors.
296 For details, take a look at <file:Documentation/cpu-freq>.
303 tristate "UltraSPARC-III Memory Controller driver"
307 This adds a driver for the UltraSPARC-III memory controller.
308 Loading this driver allows exact mnemonic strings to be
309 printed in the event of a memory error, so that the faulty DIMM
310 on the motherboard can be matched to the error.
312 If in doubt, say Y, as this information can be very useful.
314 # Global things across all Sun machines.
315 config GENERIC_LOCKBREAK
318 depends on SPARC64 && SMP && PREEMPT
321 prompt "SPARC64 Huge TLB Page Size"
322 depends on SPARC64 && HUGETLB_PAGE
323 default HUGETLB_PAGE_SIZE_4MB
325 config HUGETLB_PAGE_SIZE_4MB
328 config HUGETLB_PAGE_SIZE_512K
331 config HUGETLB_PAGE_SIZE_64K
332 depends on !SPARC64_PAGE_SIZE_64KB
339 depends on SPARC64 && SMP
344 depends on NEED_MULTIPLE_NODES
346 # Some NUMA nodes have memory ranges that span
347 # other nodes. Even though a pfn is valid and
348 # between a node's start and end pfns, it may not
349 # reside on that node. See memmap_init_zone()
351 config NODES_SPAN_OTHER_NODES
353 depends on NEED_MULTIPLE_NODES
355 config ARCH_SELECT_MEMORY_MODEL
356 def_bool y if SPARC64
358 config ARCH_SPARSEMEM_ENABLE
359 def_bool y if SPARC64
360 select SPARSEMEM_VMEMMAP_ENABLE
362 config ARCH_SPARSEMEM_DEFAULT
363 def_bool y if SPARC64
368 bool "SMT (Hyperthreading) scheduler support"
369 depends on SPARC64 && SMP
372 SMT scheduler support improves the CPU scheduler's decision making
373 when dealing with SPARC cpus at a cost of slightly increased overhead
374 in some places. If unsure say N here.
377 bool "Multi-core scheduler support"
378 depends on SPARC64 && SMP
381 Multi-core scheduler support improves the CPU scheduler's decision
382 making when dealing with multi-core CPU chips at a cost of slightly
383 increased overhead in some places. If unsure say N here.
385 source "kernel/Kconfig.preempt"
388 bool "Default bootloader kernel arguments"
392 string "Initial kernel command string"
393 depends on CMDLINE_BOOL
394 default "console=ttyS0,9600 root=/dev/sda1"
396 Say Y here if you want to be able to pass default arguments to
397 the kernel. This will be overridden by the bootloader, if you
398 use one (such as SILO). This is most useful if you want to boot
399 a kernel from TFTP, and want default options to be available
400 with having them passed on the command line.
402 NOTE: This option WILL override the PROM bootargs setting!
408 Enable power management and CPU standby features on supported
412 tristate "Sun4m LED driver"
415 This driver toggles the front-panel LED on sun4m systems
416 in a user-specifiable manner. Its state can be probed
417 by reading /proc/led and its blinking mode can be changed
418 via writes to /proc/led
420 config SERIAL_CONSOLE
425 If you say Y here, it will be possible to use a serial port as the
426 system console (the system console is the device which receives all
427 kernel messages and warnings and which allows logins in single user
428 mode). This could be useful if some terminal or printer is connected
431 Even if you say Y here, the currently visible virtual console
432 (/dev/tty0) will still be used as the system console by default, but
433 you can alter that using a kernel command line option such as
434 "console=ttyS1". (Try "man bootparam" or see the documentation of
435 your boot loader (silo) about how to pass options to the kernel at
438 If you don't have a graphics card installed and you say Y here, the
439 kernel will automatically use the first serial line, /dev/ttyS0, as
445 bool "Sparc Leon processor family"
448 If you say Y here if you are running on a SPARC-LEON processor.
449 The LEON processor is a synthesizable VHDL model of the
450 SPARC-v8 standard. LEON is part of the GRLIB collection of
451 IP cores that are distributed under GPL. GRLIB can be downloaded
452 from www.gaisler.com. You can download a sparc-linux cross-compilation
453 toolchain at www.gaisler.com.
456 menu "U-Boot options"
458 config UBOOT_LOAD_ADDR
459 hex "uImage Load Address"
462 U-Boot kernel load address, the address in physical address space
463 where u-boot will place the Linux kernel before booting it.
464 This address is normally the base address of main memory + 0x4000.
466 config UBOOT_FLASH_ADDR
467 hex "uImage.o Load Address"
470 Optional setting only affecting the uImage.o ELF-image used to
471 download the uImage file to the target using a ELF-loader other than
472 U-Boot. It may for example be used to download an uImage to FLASH with
473 the GRMON utility before even starting u-boot.
475 config UBOOT_ENTRY_ADDR
476 hex "uImage Entry Address"
479 Do not change this unless you know what you're doing. This is
480 hardcoded by the SPARC32 and LEON port.
482 This is the virtual address u-boot jumps to when booting the Linux
490 menu "Bus options (PCI etc.)"
500 bool "Sun Logical Domains support"
503 Say Y here is you want to support virtual devices via
507 bool "Support for PCI and PS/2 keyboard/mouse"
509 Find out whether your system includes a PCI bus. PCI is the name of
510 a bus system, i.e. the way the CPU talks to the other stuff inside
511 your box. If you say Y here, the kernel will include drivers and
512 infrastructure code to support PCI bus devices.
514 CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
515 CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
516 All of these platforms are extremely obscure, so say N if unsure.
519 def_bool PCI if SPARC64
526 depends on PCI && SPARC32 && !SPARC_LEON
531 depends on PCI && SPARC_LEON
535 bool "GRPCI2 Host Bridge Support"
539 Say Y here to include the GRPCI2 Host Bridge Driver.
541 source "drivers/pci/Kconfig"
543 source "drivers/pcmcia/Kconfig"
545 config SUN_OPENPROMFS
546 tristate "Openprom tree appears in /proc/openprom"
548 If you say Y, the OpenPROM device tree will be available as a
549 virtual file system, which you can mount to /proc/openprom by "mount
550 -t openpromfs none /proc/openprom".
552 To compile the /proc/openprom support as a module, choose M here: the
553 module will be called openpromfs.
555 Only choose N if you know in advance that you will not need to modify
556 OpenPROM settings on the running system.
562 depends on SPARC64 && PCI
566 menu "Executable file formats"
568 source "fs/Kconfig.binfmt"
574 select COMPAT_BINFMT_ELF
575 select ARCH_WANT_OLD_COMPAT_IPC
577 config SYSVIPC_COMPAT
579 depends on COMPAT && SYSVIPC
586 source "drivers/Kconfig"
588 source "drivers/sbus/char/Kconfig"
592 source "arch/sparc/Kconfig.debug"
594 source "security/Kconfig"
596 source "crypto/Kconfig"