[net-next-2.6.git] / arch / sparc / Kconfig

# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux/SPARC Kernel Configuration"

config SPARC
	bool
	default y
	select HAVE_IDE
	select HAVE_OPROFILE
	select HAVE_ARCH_KGDB if !SMP || SPARC64
	select HAVE_ARCH_TRACEHOOK
	select ARCH_WANT_OPTIONAL_GPIOLIB
	select RTC_CLASS
	select RTC_DRV_M48T59

# Identify this as a Sparc32 build
config SPARC32
	bool
	default y if ARCH = "sparc"
	help
	  SPARC is a family of RISC microprocessors designed and marketed by
	  Sun Microsystems, incorporated.  They are very widely found in Sun
	  workstations and clones. This port covers the original 32-bit SPARC;
	  it is old and stable and usually considered one of the "big three"
	  along with the Intel and Alpha ports.  The UltraLinux project
	  maintains both the SPARC32 and SPARC64 ports; its web page is
	  available at <http://www.ultralinux.org/>.

config SPARC64
	bool
	default y if ARCH = "sparc64"
	select HAVE_FUNCTION_TRACER
	select HAVE_KRETPROBES
	select HAVE_KPROBES
	select HAVE_LMB
	select USE_GENERIC_SMP_HELPERS if SMP
	select RTC_DRV_CMOS
	select RTC_DRV_BQ4802
	select RTC_DRV_SUN4V
	select RTC_DRV_STARFIRE

config ARCH_DEFCONFIG
	string
	default "arch/sparc/configs/sparc32_defconfig" if SPARC32
	default "arch/sparc/configs/sparc64_defconfig" if SPARC64

# CONFIG_BITS can be used at source level to get 32/64 bits
config BITS
	int
	default 32 if SPARC32
	default 64 if SPARC64

config 64BIT
	def_bool y if SPARC64

config GENERIC_TIME
	bool
	default y if SPARC64

config GENERIC_CMOS_UPDATE
	bool
	default y if SPARC64

config GENERIC_CLOCKEVENTS
	bool
	default y if SPARC64

config IOMMU_HELPER
	bool
	default y if SPARC64

config QUICKLIST
	bool
	default y if SPARC64

config STACKTRACE_SUPPORT
	bool
	default y if SPARC64

config LOCKDEP_SUPPORT
	bool
	default y if SPARC64

config HAVE_LATENCYTOP_SUPPORT
	bool
	default y if SPARC64

config AUDIT_ARCH
	bool
	default y

config HAVE_SETUP_PER_CPU_AREA
	def_bool y if SPARC64

config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	def_bool y if SPARC64

config MMU
	bool
	default y

config HIGHMEM
	bool
	default y if SPARC32

config ZONE_DMA
	bool
	default y if SPARC32

config GENERIC_ISA_DMA
	bool
	default y if SPARC32

config GENERIC_GPIO
	bool
	help
	  Generic GPIO API support

config ARCH_NO_VIRT_TO_BUS
	def_bool y

config OF
	def_bool y

source "init/Kconfig"

source "kernel/Kconfig.freezer"

menu "Processor type and features"

config SMP
	bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
	---help---
	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	  Management" code will be disabled if you say Y here.

	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
	  available at <http://www.tldp.org/docs.html#howto>.

	  If you don't know what to do here, say N.

config NR_CPUS
	int "Maximum number of CPUs"
	depends on SMP
	range 2 32 if SPARC32
	range 2 1024 if SPARC64
	default 32 if SPARC32
	default 64 if SPARC64

source kernel/Kconfig.hz

config RWSEM_GENERIC_SPINLOCK
	bool
	default y if SPARC32

config RWSEM_XCHGADD_ALGORITHM
	bool
	default y if SPARC64

config GENERIC_FIND_NEXT_BIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y if !ULTRA_HAS_POPULATION_COUNT

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config ARCH_MAY_HAVE_PC_FDC
	bool
	default y

config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

config EMULATED_CMPXCHG
	bool
	default y if SPARC32
	help
	  Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
	  is emulated, and therefore it is not completely atomic.

# Makefile helpers
config SPARC32_SMP
	bool
	default y
	depends on SPARC32 && SMP

config SPARC64_SMP
	bool
	default y
	depends on SPARC64 && SMP

choice
	prompt "Kernel page size" if SPARC64
	default SPARC64_PAGE_SIZE_8KB

config SPARC64_PAGE_SIZE_8KB
	bool "8KB"
	help
	  This lets you select the page size of the kernel.

	  8KB and 64KB work quite well, since SPARC ELF sections
	  provide for up to 64KB alignment.

	  If you don't know what to do, choose 8KB.

config SPARC64_PAGE_SIZE_64KB
	bool "64KB"

endchoice

config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on SPARC64 && PROC_FS
	default y
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via /proc/<pid>/seccomp, it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

	  If unsure, say Y. Only embedded should say N here.

config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs"
	depends on SPARC64 && SMP
	select HOTPLUG
	help
	  Say Y here to experiment with turning CPUs off and on.  CPUs
	  can be controlled through /sys/devices/system/cpu/cpu#.
	  Say N if you want to disable CPU hotplug.

config GENERIC_HARDIRQS
	bool
	default y if SPARC64

source "kernel/time/Kconfig"

if SPARC64
source "drivers/cpufreq/Kconfig"

config US3_FREQ
	tristate "UltraSPARC-III CPU Frequency driver"
	depends on CPU_FREQ
	select CPU_FREQ_TABLE
	help
	  This adds the CPUFreq driver for UltraSPARC-III processors.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say N.

config US2E_FREQ
	tristate "UltraSPARC-IIe CPU Frequency driver"
	depends on CPU_FREQ
	select CPU_FREQ_TABLE
	help
	  This adds the CPUFreq driver for UltraSPARC-IIe processors.

	  For details, take a look at <file:Documentation/cpu-freq>.

	  If in doubt, say N.

endif

config US3_MC
	tristate "UltraSPARC-III Memory Controller driver"
	depends on SPARC64
	default y
	help
	  This adds a driver for the UltraSPARC-III memory controller.
	  Loading this driver allows exact mnemonic strings to be
	  printed in the event of a memory error, so that the faulty DIMM
	  on the motherboard can be matched to the error.

	  If in doubt, say Y, as this information can be very useful.

# Global things across all Sun machines.
config GENERIC_LOCKBREAK
	bool
	default y
	depends on SPARC64 && SMP && PREEMPT

choice
	prompt "SPARC64 Huge TLB Page Size"
	depends on SPARC64 && HUGETLB_PAGE
	default HUGETLB_PAGE_SIZE_4MB

config HUGETLB_PAGE_SIZE_4MB
	bool "4MB"

config HUGETLB_PAGE_SIZE_512K
	bool "512K"

config HUGETLB_PAGE_SIZE_64K
	depends on !SPARC64_PAGE_SIZE_64KB
	bool "64K"

endchoice

config NUMA
	bool "NUMA support"
	depends on SPARC64 && SMP

config NODES_SHIFT
	int
	default "4"
	depends on NEED_MULTIPLE_NODES

# Some NUMA nodes have memory ranges that span
# other nodes.  Even though a pfn is valid and
# between a node's start and end pfns, it may not
# reside on that node.  See memmap_init_zone()
# for details.
config NODES_SPAN_OTHER_NODES
	def_bool y
	depends on NEED_MULTIPLE_NODES

config ARCH_POPULATES_NODE_MAP
	def_bool y if SPARC64

config ARCH_SELECT_MEMORY_MODEL
	def_bool y if SPARC64

config ARCH_SPARSEMEM_ENABLE
	def_bool y if SPARC64
	select SPARSEMEM_VMEMMAP_ENABLE

config ARCH_SPARSEMEM_DEFAULT
	def_bool y if SPARC64

source "mm/Kconfig"

config SCHED_SMT
	bool "SMT (Hyperthreading) scheduler support"
	depends on SPARC64 && SMP
	default y
	help
	  SMT scheduler support improves the CPU scheduler's decision making
	  when dealing with SPARC cpus at a cost of slightly increased overhead
	  in some places. If unsure say N here.

config SCHED_MC
	bool "Multi-core scheduler support"
	depends on SPARC64 && SMP
	default y
	help
	  Multi-core scheduler support improves the CPU scheduler's decision
	  making when dealing with multi-core CPU chips at a cost of slightly
	  increased overhead in some places. If unsure say N here.

if SPARC64
source "kernel/Kconfig.preempt"
endif

config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"
	depends on SPARC64

config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttyS0,9600 root=/dev/sda1"
	help
	  Say Y here if you want to be able to pass default arguments to
	  the kernel. This will be overridden by the bootloader, if you
	  use one (such as SILO). This is most useful if you want to boot
	  a kernel from TFTP, and want default options to be available
	  with having them passed on the command line.

	  NOTE: This option WILL override the PROM bootargs setting!

config SUN_PM
	bool
	default y if SPARC32
	help
	  Enable power management and CPU standby features on supported
	  SPARC platforms.

config SPARC_LED
	tristate "Sun4m LED driver"
	depends on SPARC32
	help
	  This driver toggles the front-panel LED on sun4m systems
	  in a user-specifiable manner.  Its state can be probed
	  by reading /proc/led and its blinking mode can be changed
	  via writes to /proc/led

config SERIAL_CONSOLE
	bool
	depends on SPARC32
	default y
	---help---
	  If you say Y here, it will be possible to use a serial port as the
	  system console (the system console is the device which receives all
	  kernel messages and warnings and which allows logins in single user
	  mode). This could be useful if some terminal or printer is connected
	  to that serial port.

	  Even if you say Y here, the currently visible virtual console
	  (/dev/tty0) will still be used as the system console by default, but
	  you can alter that using a kernel command line option such as
	  "console=ttyS1". (Try "man bootparam" or see the documentation of
	  your boot loader (silo) about how to pass options to the kernel at
	  boot time.)

	  If you don't have a graphics card installed and you say Y here, the
	  kernel will automatically use the first serial line, /dev/ttyS0, as
	  system console.

	  If unsure, say N.

endmenu

menu "Bus options (PCI etc.)"
config ISA
	bool
	help
	  ISA is found on Espresso only and is not supported currently.

config ISAPNP
	bool
	help
	  ISAPNP is not supported

config EISA
	bool
	help
	  EISA is not supported.

config MCA
	bool
	help
	  MCA is not supported.

config SBUS
	bool
	default y

config SBUSCHAR
	bool
	default y

config SUN_LDOMS
	bool "Sun Logical Domains support"
	depends on SPARC64
	help
	  Say Y here is you want to support virtual devices via
	  Logical Domains.

config PCI
	bool "Support for PCI and PS/2 keyboard/mouse"
	select ARCH_SUPPORTS_MSI if SPARC64
	help
	  Find out whether your system includes a PCI bus. PCI is the name of
	  a bus system, i.e. the way the CPU talks to the other stuff inside
	  your box.  If you say Y here, the kernel will include drivers and
	  infrastructure code to support PCI bus devices.

	  CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
	  CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
	  All of these platforms are extremely obscure, so say N if unsure.

config PCI_DOMAINS
	def_bool PCI if SPARC64

config PCI_SYSCALL
	def_bool PCI

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

config SUN_OPENPROMFS
	tristate "Openprom tree appears in /proc/openprom"
	help
	  If you say Y, the OpenPROM device tree will be available as a
	  virtual file system, which you can mount to /proc/openprom by "mount
	  -t openpromfs none /proc/openprom".

	  To compile the /proc/openprom support as a module, choose M here: the
	  module will be called openpromfs.

	  Only choose N if you know in advance that you will not need to modify
	  OpenPROM settings on the running system.

# Makefile helpers
config SPARC32_PCI
	bool
	default y
	depends on SPARC32 && PCI

config SPARC64_PCI
	bool
	default y
	depends on SPARC64 && PCI

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config COMPAT
	bool
	depends on SPARC64
	default y
	select COMPAT_BINFMT_ELF

config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "drivers/sbus/char/Kconfig"

source "fs/Kconfig"

source "arch/sparc/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
Commit	Line	Data
1da177e4 LT	1	# For a description of the syntax of this configuration file,
	2	# see Documentation/kbuild/kconfig-language.txt.
	3	#
	4
	5	mainmenu "Linux/SPARC Kernel Configuration"
	6
35da3e39 SR	7	config SPARC
	8	bool
	9	default y
	10	select HAVE_IDE
	11	select HAVE_OPROFILE
26b4c912	12	select HAVE_ARCH_KGDB if !SMP \|\| SPARC64
35da3e39 SR	13	select HAVE_ARCH_TRACEHOOK
	14	select ARCH_WANT_OPTIONAL_GPIOLIB
	15	select RTC_CLASS
	16	select RTC_DRV_M48T59
	17
	18	# Identify this as a Sparc32 build
	19	config SPARC32
	20	bool
26b4c912	21	default y if ARCH = "sparc"
35da3e39 SR	22	help
	23	SPARC is a family of RISC microprocessors designed and marketed by
	24	Sun Microsystems, incorporated. They are very widely found in Sun
	25	workstations and clones. This port covers the original 32-bit SPARC;
	26	it is old and stable and usually considered one of the "big three"
	27	along with the Intel and Alpha ports. The UltraLinux project
	28	maintains both the SPARC32 and SPARC64 ports; its web page is
	29	available at <http://www.ultralinux.org/>.
	30
26b4c912 SR	31	config SPARC64
	32	bool
	33	default y if ARCH = "sparc64"
	34	select HAVE_FUNCTION_TRACER
	35	select HAVE_KRETPROBES
	36	select HAVE_KPROBES
	37	select HAVE_LMB
	38	select USE_GENERIC_SMP_HELPERS if SMP
	39	select RTC_DRV_CMOS
	40	select RTC_DRV_BQ4802
	41	select RTC_DRV_SUN4V
	42	select RTC_DRV_STARFIRE
	43
5e538790 SR	44	config ARCH_DEFCONFIG
	45	string
	46	default "arch/sparc/configs/sparc32_defconfig" if SPARC32
	47	default "arch/sparc/configs/sparc64_defconfig" if SPARC64
	48
fe6875ec SR	49	# CONFIG_BITS can be used at source level to get 32/64 bits
	50	config BITS
	51	int
	52	default 32 if SPARC32
	53	default 64 if SPARC64
5e538790	54
26b4c912 SR	55	config 64BIT
	56	def_bool y if SPARC64
	57
	58	config GENERIC_TIME
	59	bool
	60	default y if SPARC64
	61
	62	config GENERIC_CMOS_UPDATE
	63	bool
	64	default y if SPARC64
	65
	66	config GENERIC_CLOCKEVENTS
	67	bool
	68	default y if SPARC64
	69
	70	config IOMMU_HELPER
	71	bool
	72	default y if SPARC64
	73
	74	config QUICKLIST
	75	bool
	76	default y if SPARC64
	77
	78	config STACKTRACE_SUPPORT
	79	bool
	80	default y if SPARC64
	81
	82	config LOCKDEP_SUPPORT
	83	bool
	84	default y if SPARC64
	85
6a5726dd DM	86	config HAVE_LATENCYTOP_SUPPORT
	87	bool
	88	default y if SPARC64
	89
26b4c912 SR	90	config AUDIT_ARCH
26b4c912 SR	91	bool
7e7e93a2	92	default y
26b4c912 SR	93
	94	config HAVE_SETUP_PER_CPU_AREA
	95	def_bool y if SPARC64
	96
	97	config GENERIC_HARDIRQS_NO__DO_IRQ
	98	bool
	99	def_bool y if SPARC64
	100
1da177e4 LT	101	config MMU
	102	bool
	103	default y
	104
1da177e4 LT	105	config HIGHMEM
1da177e4 LT	106	bool
26b4c912	107	default y if SPARC32
1da177e4	108
5ac6da66 CL	109	config ZONE_DMA
5ac6da66 CL	110	bool
26b4c912	111	default y if SPARC32
5ac6da66	112
1da177e4 LT	113	config GENERIC_ISA_DMA
1da177e4 LT	114	bool
26b4c912	115	default y if SPARC32
1da177e4	116
15df0f33 DM	117	config GENERIC_GPIO
	118	bool
	119	help
	120	Generic GPIO API support
	121
0785b9dc SR	122	config ARCH_NO_VIRT_TO_BUS
	123	def_bool y
	124
97e873e5 SR	125	config OF
	126	def_bool y
	127
1da177e4 LT	128	source "init/Kconfig"
1da177e4 LT	129
dc52ddc0 MH	130	source "kernel/Kconfig.freezer"
dc52ddc0 MH	131
26b4c912	132	menu "Processor type and features"
1da177e4	133
1da177e4 LT	134	config SMP
1da177e4 LT	135	bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
1da177e4 LT	136	---help---
	137	This enables support for systems with more than one CPU. If you have
	138	a system with only one CPU, say N. If you have a system with more
	139	than one CPU, say Y.
	140
	141	If you say N here, the kernel will run on single and multiprocessor
	142	machines, but will use only one CPU of a multiprocessor machine. If
	143	you say Y here, the kernel will run on many, but not all,
	144	singleprocessor machines. On a singleprocessor machine, the kernel
	145	will run faster if you say N here.
	146
	147	People using multiprocessor machines who say Y here should also say
	148	Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	149	Management" code will be disabled if you say Y here.
	150
03502faa AB	151	See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
03502faa AB	152	available at <http://www.tldp.org/docs.html#howto>.
1da177e4 LT	153
	154	If you don't know what to do here, say N.
	155
	156	config NR_CPUS
26b4c912	157	int "Maximum number of CPUs"
1da177e4	158	depends on SMP
26b4c912 SR	159	range 2 32 if SPARC32
	160	range 2 1024 if SPARC64
	161	default 32 if SPARC32
	162	default 64 if SPARC64
1da177e4	163
26b4c912	164	source kernel/Kconfig.hz
1da177e4	165
1da177e4 LT	166	config RWSEM_GENERIC_SPINLOCK
1da177e4 LT	167	bool
26b4c912	168	default y if SPARC32
1da177e4 LT	169
	170	config RWSEM_XCHGADD_ALGORITHM
	171	bool
26b4c912	172	default y if SPARC64
1da177e4	173
d59288b7 AM	174	config GENERIC_FIND_NEXT_BIT
	175	bool
	176	default y
	177
	178	config GENERIC_HWEIGHT
	179	bool
26b4c912	180	default y if !ULTRA_HAS_POPULATION_COUNT
d59288b7	181
1da177e4 LT	182	config GENERIC_CALIBRATE_DELAY
	183	bool
	184	default y
	185
a08b6b79 AV	186	config ARCH_MAY_HAVE_PC_FDC
	187	bool
	188	default y
	189
f0d1b0b3 DH	190	config ARCH_HAS_ILOG2_U32
	191	bool
	192	default n
	193
	194	config ARCH_HAS_ILOG2_U64
	195	bool
	196	default n
	197
5f81941c MH	198	config EMULATED_CMPXCHG
5f81941c MH	199	bool
26b4c912	200	default y if SPARC32
5f81941c MH	201	help
	202	Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
	203	is emulated, and therefore it is not completely atomic.
	204
d670bd4f SR	205	# Makefile helpers
	206	config SPARC32_SMP
	207	bool
	208	default y
	209	depends on SPARC32 && SMP
	210
	211	config SPARC64_SMP
	212	bool
	213	default y
	214	depends on SPARC64 && SMP
	215
26b4c912 SR	216	choice
	217	prompt "Kernel page size" if SPARC64
	218	default SPARC64_PAGE_SIZE_8KB
	219
	220	config SPARC64_PAGE_SIZE_8KB
	221	bool "8KB"
	222	help
	223	This lets you select the page size of the kernel.
	224
	225	8KB and 64KB work quite well, since SPARC ELF sections
	226	provide for up to 64KB alignment.
	227
	228	If you don't know what to do, choose 8KB.
	229
	230	config SPARC64_PAGE_SIZE_64KB
	231	bool "64KB"
	232
	233	endchoice
	234
	235	config SECCOMP
	236	bool "Enable seccomp to safely compute untrusted bytecode"
	237	depends on SPARC64 && PROC_FS
	238	default y
	239	help
	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.
	249
	250	If unsure, say Y. Only embedded should say N here.
	251
	252	config HOTPLUG_CPU
	253	bool "Support for hot-pluggable CPUs"
	254	depends on SPARC64 && SMP
	255	select HOTPLUG
	256	help
	257	Say Y here to experiment with turning CPUs off and on. CPUs
	258	can be controlled through /sys/devices/system/cpu/cpu#.
	259	Say N if you want to disable CPU hotplug.
	260
	261	config GENERIC_HARDIRQS
	262	bool
	263	default y if SPARC64
	264
	265	source "kernel/time/Kconfig"
	266
	267	if SPARC64
	268	source "drivers/cpufreq/Kconfig"
	269
	270	config US3_FREQ
	271	tristate "UltraSPARC-III CPU Frequency driver"
	272	depends on CPU_FREQ
	273	select CPU_FREQ_TABLE
	274	help
	275	This adds the CPUFreq driver for UltraSPARC-III processors.
	276
	277	For details, take a look at <file:Documentation/cpu-freq>.
	278
	279	If in doubt, say N.
280
281	config US2E_FREQ
282	tristate "UltraSPARC-IIe CPU Frequency driver"
283	depends on CPU_FREQ
284	select CPU_FREQ_TABLE
285	help
286	This adds the CPUFreq driver for UltraSPARC-IIe processors.
287
288	For details, take a look at <file:Documentation/cpu-freq>.
289
290	If in doubt, say N.
291
292	endif
293
294	config US3_MC
295	tristate "UltraSPARC-III Memory Controller driver"
296	depends on SPARC64
297	default y
298	help
299	This adds a driver for the UltraSPARC-III memory controller.
300	Loading this driver allows exact mnemonic strings to be
301	printed in the event of a memory error, so that the faulty DIMM
302	on the motherboard can be matched to the error.
303
304	If in doubt, say Y, as this information can be very useful.
305
306	# Global things across all Sun machines.
307	config GENERIC_LOCKBREAK
1da177e4 LT	308	bool
1da177e4 LT	309	default y
26b4c912 SR	310	depends on SPARC64 && SMP && PREEMPT
	311
	312	choice
	313	prompt "SPARC64 Huge TLB Page Size"
	314	depends on SPARC64 && HUGETLB_PAGE
	315	default HUGETLB_PAGE_SIZE_4MB
	316
	317	config HUGETLB_PAGE_SIZE_4MB
	318	bool "4MB"
	319
	320	config HUGETLB_PAGE_SIZE_512K
	321	bool "512K"
	322
	323	config HUGETLB_PAGE_SIZE_64K
	324	depends on !SPARC64_PAGE_SIZE_64KB
	325	bool "64K"
	326
	327	endchoice
	328
	329	config NUMA
	330	bool "NUMA support"
	331	depends on SPARC64 && SMP
	332
	333	config NODES_SHIFT
	334	int
	335	default "4"
	336	depends on NEED_MULTIPLE_NODES
	337
	338	# Some NUMA nodes have memory ranges that span
	339	# other nodes. Even though a pfn is valid and
	340	# between a node's start and end pfns, it may not
	341	# reside on that node. See memmap_init_zone()
	342	# for details.
	343	config NODES_SPAN_OTHER_NODES
	344	def_bool y
	345	depends on NEED_MULTIPLE_NODES
	346
	347	config ARCH_POPULATES_NODE_MAP
	348	def_bool y if SPARC64
	349
	350	config ARCH_SELECT_MEMORY_MODEL
	351	def_bool y if SPARC64
	352
	353	config ARCH_SPARSEMEM_ENABLE
	354	def_bool y if SPARC64
	355	select SPARSEMEM_VMEMMAP_ENABLE
	356
	357	config ARCH_SPARSEMEM_DEFAULT
	358	def_bool y if SPARC64
	359
	360	source "mm/Kconfig"
	361
	362	config SCHED_SMT
	363	bool "SMT (Hyperthreading) scheduler support"
	364	depends on SPARC64 && SMP
	365	default y
	366	help
	367	SMT scheduler support improves the CPU scheduler's decision making
	368	when dealing with SPARC cpus at a cost of slightly increased overhead
	369	in some places. If unsure say N here.
	370
	371	config SCHED_MC
	372	bool "Multi-core scheduler support"
	373	depends on SPARC64 && SMP
374	default y
375	help
376	Multi-core scheduler support improves the CPU scheduler's decision
377	making when dealing with multi-core CPU chips at a cost of slightly
378	increased overhead in some places. If unsure say N here.
379
380	if SPARC64
381	source "kernel/Kconfig.preempt"
382	endif
383
384	config CMDLINE_BOOL
385	bool "Default bootloader kernel arguments"
386	depends on SPARC64
387
388	config CMDLINE
389	string "Initial kernel command string"
390	depends on CMDLINE_BOOL
391	default "console=ttyS0,9600 root=/dev/sda1"
392	help
393	Say Y here if you want to be able to pass default arguments to
394	the kernel. This will be overridden by the bootloader, if you
395	use one (such as SILO). This is most useful if you want to boot
396	a kernel from TFTP, and want default options to be available
397	with having them passed on the command line.
398
399	NOTE: This option WILL override the PROM bootargs setting!
400
401	config SUN_PM
402	bool
403	default y if SPARC32
1da177e4 LT	404	help
	405	Enable power management and CPU standby features on supported
	406	SPARC platforms.
	407
4b27e0e1 SR	408	config SPARC_LED
4b27e0e1 SR	409	tristate "Sun4m LED driver"
26b4c912	410	depends on SPARC32
4b27e0e1 SR	411	help
	412	This driver toggles the front-panel LED on sun4m systems
	413	in a user-specifiable manner. Its state can be probed
	414	by reading /proc/led and its blinking mode can be changed
	415	via writes to /proc/led
	416
26b4c912 SR	417	config SERIAL_CONSOLE
	418	bool
	419	depends on SPARC32
	420	default y
	421	---help---
	422	If you say Y here, it will be possible to use a serial port as the
	423	system console (the system console is the device which receives all
	424	kernel messages and warnings and which allows logins in single user
	425	mode). This could be useful if some terminal or printer is connected
	426	to that serial port.
	427
	428	Even if you say Y here, the currently visible virtual console
	429	(/dev/tty0) will still be used as the system console by default, but
	430	you can alter that using a kernel command line option such as
	431	"console=ttyS1". (Try "man bootparam" or see the documentation of
	432	your boot loader (silo) about how to pass options to the kernel at
	433	boot time.)
	434
	435	If you don't have a graphics card installed and you say Y here, the
	436	kernel will automatically use the first serial line, /dev/ttyS0, as
	437	system console.
	438
	439	If unsure, say N.
4b27e0e1 SR	440
	441	endmenu
	442
	443	menu "Bus options (PCI etc.)"
	444	config ISA
	445	bool
	446	help
	447	ISA is found on Espresso only and is not supported currently.
	448
	449	config ISAPNP
	450	bool
	451	help
	452	ISAPNP is not supported
	453
	454	config EISA
	455	bool
	456	help
	457	EISA is not supported.
	458
	459	config MCA
	460	bool
	461	help
	462	MCA is not supported.
	463
4b27e0e1 SR	464	config SBUS
	465	bool
	466	default y
	467
	468	config SBUSCHAR
	469	bool
	470	default y
	471
26b4c912 SR	472	config SUN_LDOMS
	473	bool "Sun Logical Domains support"
	474	depends on SPARC64
	475	help
	476	Say Y here is you want to support virtual devices via
	477	Logical Domains.
	478
1da177e4 LT	479	config PCI
1da177e4 LT	480	bool "Support for PCI and PS/2 keyboard/mouse"
26b4c912	481	select ARCH_SUPPORTS_MSI if SPARC64
1da177e4	482	help
26b4c912 SR	483	Find out whether your system includes a PCI bus. PCI is the name of
	484	a bus system, i.e. the way the CPU talks to the other stuff inside
	485	your box. If you say Y here, the kernel will include drivers and
	486	infrastructure code to support PCI bus devices.
	487
1da177e4 LT	488	CONFIG_PCI is needed for all JavaStation's (including MrCoffee),
	489	CP-1200, JavaEngine-1, Corona, Red October, and Serengeti SGSC.
	490	All of these platforms are extremely obscure, so say N if unsure.
	491
26b4c912 SR	492	config PCI_DOMAINS
	493	def_bool PCI if SPARC64
	494
36e23590 MW	495	config PCI_SYSCALL
	496	def_bool PCI
	497
1da177e4 LT	498	source "drivers/pci/Kconfig"
1da177e4 LT	499
c6afec5e DM	500	source "drivers/pcmcia/Kconfig"
c6afec5e DM	501
1da177e4 LT	502	config SUN_OPENPROMFS
	503	tristate "Openprom tree appears in /proc/openprom"
	504	help
	505	If you say Y, the OpenPROM device tree will be available as a
	506	virtual file system, which you can mount to /proc/openprom by "mount
	507	-t openpromfs none /proc/openprom".
	508
	509	To compile the /proc/openprom support as a module, choose M here: the
	510	module will be called openpromfs.
	511
	512	Only choose N if you know in advance that you will not need to modify
	513	OpenPROM settings on the running system.
	514
d670bd4f SR	515	# Makefile helpers
	516	config SPARC32_PCI
	517	bool
	518	default y
	519	depends on SPARC32 && PCI
	520
	521	config SPARC64_PCI
	522	bool
	523	default y
	524	depends on SPARC64 && PCI
30aaa808 WLII	525
	526	endmenu
	527
12e271a8 SR	528	menu "Executable file formats"
	529
	530	source "fs/Kconfig.binfmt"
	531
26b4c912 SR	532	config COMPAT
	533	bool
	534	depends on SPARC64
	535	default y
	536	select COMPAT_BINFMT_ELF
	537
	538	config SYSVIPC_COMPAT
	539	bool
	540	depends on COMPAT && SYSVIPC
	541	default y
	542
12e271a8 SR	543	endmenu
12e271a8 SR	544
d5950b43 SR	545	source "net/Kconfig"
d5950b43 SR	546
30aaa808	547	source "drivers/Kconfig"
1da177e4	548
1da177e4	549	source "drivers/sbus/char/Kconfig"
1da177e4	550
1da177e4 LT	551	source "fs/Kconfig"
1da177e4 LT	552
1da177e4 LT	553	source "arch/sparc/Kconfig.debug"
	554
	555	source "security/Kconfig"
	556
	557	source "crypto/Kconfig"
	558
	559	source "lib/Kconfig"