[net-next-2.6.git] / arch / sparc64 / Kconfig

# $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $
# For a description of the syntax of this configuration file,
# see the Configure script.
#

mainmenu "Linux/UltraSPARC Kernel Configuration"

config SPARC
	bool
	default y

config SPARC64
	bool
	default y
	help
	  SPARC is a family of RISC microprocessors designed and marketed by
	  Sun Microsystems, incorporated.  This port covers the newer 64-bit
	  UltraSPARC.  The UltraLinux project maintains both the SPARC32 and
	  SPARC64 ports; its web page is available at
	  <http://www.ultralinux.org/>.

config GENERIC_TIME
	bool
	default y

config GENERIC_CLOCKEVENTS
	bool
	default y

config 64BIT
	def_bool y

config MMU
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

config LOCKDEP_SUPPORT
	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 AUDIT_ARCH
	bool
	default y

choice
	prompt "Kernel page size"
	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.

	  Therefore, 512KB and 4MB are for expert hackers only.

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

config SPARC64_PAGE_SIZE_64KB
	bool "64KB"

config SPARC64_PAGE_SIZE_512KB
	bool "512KB"

config SPARC64_PAGE_SIZE_4MB
	bool "4MB"

endchoice

config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
	depends on 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.

source kernel/Kconfig.hz

source "init/Kconfig"

config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

config GENERIC_HARDIRQS
	bool
	default y

menu "General machine setup"

source "kernel/time/Kconfig"

config SMP
	bool "Symmetric multi-processing support"
	---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 the <file:Documentation/smp.txt>,
	  <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 (2-64)"
	range 2 64
	depends on SMP
	default "32"

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.

# Global things across all Sun machines.
config RWSEM_GENERIC_SPINLOCK
	bool

config RWSEM_XCHGADD_ALGORITHM
	bool
	default y

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

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

config HUGETLB_PAGE_SIZE_4MB
	bool "4MB"

config HUGETLB_PAGE_SIZE_512K
	depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
	bool "512K"

config HUGETLB_PAGE_SIZE_64K
Commit	Line	Data
1da177e4 LT	1	# $Id: config.in,v 1.158 2002/01/24 22:14:44 davem Exp $
	2	# For a description of the syntax of this configuration file,
	3	# see the Configure script.
	4	#
	5
	6	mainmenu "Linux/UltraSPARC Kernel Configuration"
	7
0b57ee9e AB	8	config SPARC
	9	bool
	10	default y
	11
5843e37e DM	12	config SPARC64
	13	bool
	14	default y
	15	help
	16	SPARC is a family of RISC microprocessors designed and marketed by
	17	Sun Microsystems, incorporated. This port covers the newer 64-bit
	18	UltraSPARC. The UltraLinux project maintains both the SPARC32 and
	19	SPARC64 ports; its web page is available at
	20	<http://www.ultralinux.org/>.
	21
112f4871 DM	22	config GENERIC_TIME
	23	bool
	24	default y
	25
	26	config GENERIC_CLOCKEVENTS
	27	bool
	28	default y
	29
1da177e4 LT	30	config 64BIT
	31	def_bool y
	32
	33	config MMU
	34	bool
	35	default y
	36
10e26723 DM	37	config STACKTRACE_SUPPORT
	38	bool
	39	default y
	40
	41	config LOCKDEP_SUPPORT
	42	bool
	43	default y
	44
a08b6b79 AV	45	config ARCH_MAY_HAVE_PC_FDC
	46	bool
	47	default y
	48
f0d1b0b3 DH	49	config ARCH_HAS_ILOG2_U32
	50	bool
	51	default n
	52
	53	config ARCH_HAS_ILOG2_U64
	54	bool
	55	default n
	56
f6bc0c1c AV	57	config AUDIT_ARCH
	58	bool
	59	default y
	60
1da177e4 LT	61	choice
	62	prompt "Kernel page size"
	63	default SPARC64_PAGE_SIZE_8KB
	64
	65	config SPARC64_PAGE_SIZE_8KB
	66	bool "8KB"
	67	help
	68	This lets you select the page size of the kernel.
	69
	70	8KB and 64KB work quite well, since Sparc ELF sections
	71	provide for up to 64KB alignment.
	72
	73	Therefore, 512KB and 4MB are for expert hackers only.
	74
	75	If you don't know what to do, choose 8KB.
	76
	77	config SPARC64_PAGE_SIZE_64KB
	78	bool "64KB"
	79
	80	config SPARC64_PAGE_SIZE_512KB
	81	bool "512KB"
	82
	83	config SPARC64_PAGE_SIZE_4MB
	84	bool "4MB"
	85
	86	endchoice
	87
bb49bcda DM	88	config SECCOMP
	89	bool "Enable seccomp to safely compute untrusted bytecode"
	90	depends on PROC_FS
	91	default y
	92	help
	93	This kernel feature is useful for number crunching applications
	94	that may need to compute untrusted bytecode during their
	95	execution. By using pipes or other transports made available to
	96	the process as file descriptors supporting the read/write
	97	syscalls, it's possible to isolate those applications in
	98	their own address space using seccomp. Once seccomp is
	99	enabled via /proc/<pid>/seccomp, it cannot be disabled
	100	and the task is only allowed to execute a few safe syscalls
	101	defined by each seccomp mode.
	102
	103	If unsure, say Y. Only embedded should say N here.
	104
a6524813 DM	105	source kernel/Kconfig.hz
a6524813 DM	106
1da177e4 LT	107	source "init/Kconfig"
	108
	109	config SYSVIPC_COMPAT
	110	bool
	111	depends on COMPAT && SYSVIPC
	112	default y
	113
e18e2a00 DM	114	config GENERIC_HARDIRQS
	115	bool
	116	default y
	117
1da177e4 LT	118	menu "General machine setup"
1da177e4 LT	119
112f4871 DM	120	source "kernel/time/Kconfig"
112f4871 DM	121
1da177e4 LT	122	config SMP
	123	bool "Symmetric multi-processing support"
	124	---help---
	125	This enables support for systems with more than one CPU. If you have
	126	a system with only one CPU, say N. If you have a system with more than
	127	one CPU, say Y.
	128
	129	If you say N here, the kernel will run on single and multiprocessor
	130	machines, but will use only one CPU of a multiprocessor machine. If
	131	you say Y here, the kernel will run on many, but not all,
	132	singleprocessor machines. On a singleprocessor machine, the kernel
	133	will run faster if you say N here.
	134
	135	People using multiprocessor machines who say Y here should also say
	136	Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
	137	Management" code will be disabled if you say Y here.
	138
	139	See also the <file:Documentation/smp.txt>,
	140	<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
	141	<http://www.tldp.org/docs.html#howto>.
	142
	143	If you don't know what to do here, say N.
	144
1da177e4 LT	145	config NR_CPUS
	146	int "Maximum number of CPUs (2-64)"
	147	range 2 64
	148	depends on SMP
	149	default "32"
	150
	151	source "drivers/cpufreq/Kconfig"
	152
	153	config US3_FREQ
	154	tristate "UltraSPARC-III CPU Frequency driver"
	155	depends on CPU_FREQ
	156	select CPU_FREQ_TABLE
	157	help
	158	This adds the CPUFreq driver for UltraSPARC-III processors.
	159
	160	For details, take a look at <file:Documentation/cpu-freq>.
	161
	162	If in doubt, say N.
	163
	164	config US2E_FREQ
	165	tristate "UltraSPARC-IIe CPU Frequency driver"
	166	depends on CPU_FREQ
	167	select CPU_FREQ_TABLE
	168	help
	169	This adds the CPUFreq driver for UltraSPARC-IIe processors.
	170
	171	For details, take a look at <file:Documentation/cpu-freq>.
	172
	173	If in doubt, say N.
	174
1da177e4 LT	175	# Global things across all Sun machines.
	176	config RWSEM_GENERIC_SPINLOCK
	177	bool
	178
	179	config RWSEM_XCHGADD_ALGORITHM
	180	bool
	181	default y
	182
2d78d4be AM	183	config GENERIC_FIND_NEXT_BIT
	184	bool
	185	default y
	186
	187	config GENERIC_HWEIGHT
	188	bool
	189	default y if !ULTRA_HAS_POPULATION_COUNT
	190
1da177e4 LT	191	config GENERIC_CALIBRATE_DELAY
	192	bool
	193	default y
	194
	195	choice
	196	prompt "SPARC64 Huge TLB Page Size"
	197	depends on HUGETLB_PAGE
	198	default HUGETLB_PAGE_SIZE_4MB
	199
	200	config HUGETLB_PAGE_SIZE_4MB
	201	bool "4MB"
	202
	203	config HUGETLB_PAGE_SIZE_512K
dcc1e8dd	204	depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
1da177e4 LT	205	bool "512K"
	206
	207	config HUGETLB_PAGE_SIZE_64K