[linux-2.6-block.git] / arch / m68k / Kconfig

# SPDX-License-Identifier: GPL-2.0
config M68K
	bool
	default y
	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
	select HAVE_IDE
	select HAVE_AOUT if MMU
	select HAVE_DEBUG_BUGVERBOSE
	select GENERIC_IRQ_SHOW
	select GENERIC_ATOMIC64
	select HAVE_UID16
	select VIRT_TO_BUS
	select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
	select GENERIC_CPU_DEVICES
	select GENERIC_IOMAP
	select GENERIC_STRNCPY_FROM_USER if MMU
	select GENERIC_STRNLEN_USER if MMU
	select ARCH_WANT_IPC_PARSE_VERSION
	select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
	select HAVE_MOD_ARCH_SPECIFIC
	select MODULES_USE_ELF_REL
	select MODULES_USE_ELF_RELA
	select OLD_SIGSUSPEND3
	select OLD_SIGACTION

config CPU_BIG_ENDIAN
	def_bool y

config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

config ARCH_HAS_ILOG2_U32
	bool

config ARCH_HAS_ILOG2_U64
	bool

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config GENERIC_CSUM
	bool

config TIME_LOW_RES
	bool
	default y

config NO_IOPORT_MAP
	def_bool y

config NO_DMA
	def_bool (MMU && SUN3) || (!MMU && !COLDFIRE)

config ZONE_DMA
	bool
	default y

config HZ
	int
	default 1000 if CLEOPATRA
	default 100

config PGTABLE_LEVELS
	default 2 if SUN3 || COLDFIRE
	default 3

config MMU
	bool "MMU-based Paged Memory Management Support"
	default y
	help
	  Select if you want MMU-based virtualised addressing space
	  support by paged memory management. If unsure, say 'Y'.

config MMU_MOTOROLA
	bool

config MMU_COLDFIRE
	bool

config MMU_SUN3
	bool
	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE

config KEXEC
	bool "kexec system call"
	depends on M68KCLASSIC
	select KEXEC_CORE
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
	  but it is independent of the system firmware.   And like a reboot
	  you can start any kernel with it, not just Linux.

	  The name comes from the similarity to the exec system call.

	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.

config BOOTINFO_PROC
	bool "Export bootinfo in procfs"
	depends on KEXEC && M68KCLASSIC
	help
	  Say Y to export the bootinfo used to boot the kernel in a
	  "bootinfo" file in procfs.  This is useful with kexec.

menu "Platform setup"

source arch/m68k/Kconfig.cpu

source arch/m68k/Kconfig.machine

source arch/m68k/Kconfig.bus

endmenu

menu "Kernel Features"

if COLDFIRE
source "kernel/Kconfig.preempt"
endif

endmenu

if !MMU
menu "Power management options"

config PM
	bool "Power Management support"
	help
	  Support processor power management modes

endmenu
endif

source "arch/m68k/Kconfig.devices"
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
1da177e4 LT	2	config M68K
	3	bool
	4	default y
1a7f6be5	5	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
07c75d7a	6	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
ec7748b5	7	select HAVE_IDE
66d857b0	8	select HAVE_AOUT if MMU
9b2a60c4	9	select HAVE_DEBUG_BUGVERBOSE
d890d739	10	select GENERIC_IRQ_SHOW
42b1b946	11	select GENERIC_ATOMIC64
af1839eb	12	select HAVE_UID16
4febd95a	13	select VIRT_TO_BUS
df013ffb	14	select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
9f13a1fd	15	select GENERIC_CPU_DEVICES
f79b8592	16	select GENERIC_IOMAP
d8ce7263 GU	17	select GENERIC_STRNCPY_FROM_USER if MMU
d8ce7263 GU	18	select GENERIC_STRNLEN_USER if MMU
c1d7e01d	19	select ARCH_WANT_IPC_PARSE_VERSION
60a5e4c3	20	select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
e571c58f	21	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
786d35d4 DH	22	select HAVE_MOD_ARCH_SPECIFIC
	23	select MODULES_USE_ELF_REL
	24	select MODULES_USE_ELF_RELA
1ba3e7ef	25	select OLD_SIGSUSPEND3
8be433ab	26	select OLD_SIGACTION
1da177e4	27
4c97a0c8 BM	28	config CPU_BIG_ENDIAN
	29	def_bool y
	30
1da177e4 LT	31	config RWSEM_GENERIC_SPINLOCK
	32	bool
	33	default y
	34
	35	config RWSEM_XCHGADD_ALGORITHM
	36	bool
	37
f0d1b0b3 DH	38	config ARCH_HAS_ILOG2_U32
f0d1b0b3 DH	39	bool
f0d1b0b3 DH	40
	41	config ARCH_HAS_ILOG2_U64
	42	bool
f0d1b0b3	43
ba1a5b32 AM	44	config GENERIC_HWEIGHT
	45	bool
	46	default y
	47
1da177e4 LT	48	config GENERIC_CALIBRATE_DELAY
	49	bool
	50	default y
	51
7f73bafc GU	52	config GENERIC_CSUM
	53	bool
	54
06027bdd IM	55	config TIME_LOW_RES
	56	bool
	57	default y
	58
ce816fa8	59	config NO_IOPORT_MAP
5ea81769 AV	60	def_bool y
5ea81769 AV	61
dfedfaf5	62	config NO_DMA
66d857b0	63	def_bool (MMU && SUN3) \|\| (!MMU && !COLDFIRE)
dfedfaf5	64
66d857b0 GU	65	config ZONE_DMA
	66	bool
	67	default y
171d809d	68
bdc80787 PA	69	config HZ
bdc80787 PA	70	int
66d857b0	71	default 1000 if CLEOPATRA
bdc80787 PA	72	default 100
bdc80787 PA	73
980d5b73 KS	74	config PGTABLE_LEVELS
	75	default 2 if SUN3 \|\| COLDFIRE
	76	default 3
	77
66d857b0 GU	78	config MMU
66d857b0 GU	79	bool "MMU-based Paged Memory Management Support"
1da177e4 LT	80	default y
1da177e4 LT	81	help
66d857b0 GU	82	Select if you want MMU-based virtualised addressing space
66d857b0 GU	83	support by paged memory management. If unsure, say 'Y'.
1da177e4	84
0e152d80 GU	85	config MMU_MOTOROLA
	86	bool
	87
0e6782c8 GU	88	config MMU_COLDFIRE
	89	bool
	90
0e152d80 GU	91	config MMU_SUN3
0e152d80 GU	92	bool
0e6782c8	93	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
0e152d80	94
7d5f5fa2 GU	95	config KEXEC
	96	bool "kexec system call"
	97	depends on M68KCLASSIC
2965faa5	98	select KEXEC_CORE
7d5f5fa2 GU	99	help
	100	kexec is a system call that implements the ability to shutdown your
	101	current kernel, and to start another kernel. It is like a reboot
	102	but it is independent of the system firmware. And like a reboot
	103	you can start any kernel with it, not just Linux.
	104
	105	The name comes from the similarity to the exec system call.
	106
	107	It is an ongoing process to be certain the hardware in a machine
	108	is properly shutdown, so do not be surprised if this code does not
	109	initially work for you. As of this writing the exact hardware
	110	interface is strongly in flux, so no good recommendation can be
	111	made.
	112
7bc1e4d8 GU	113	config BOOTINFO_PROC
	114	bool "Export bootinfo in procfs"
	115	depends on KEXEC && M68KCLASSIC
	116	help
	117	Say Y to export the bootinfo used to boot the kernel in a
	118	"bootinfo" file in procfs. This is useful with kexec.
	119
0e152d80 GU	120	menu "Platform setup"
	121
	122	source arch/m68k/Kconfig.cpu
	123
	124	source arch/m68k/Kconfig.machine
	125
	126	source arch/m68k/Kconfig.bus
	127
	128	endmenu
	129
	130	menu "Kernel Features"
1da177e4	131
0e152d80 GU	132	if COLDFIRE
0e152d80 GU	133	source "kernel/Kconfig.preempt"
66d857b0	134	endif
0e152d80	135
66d857b0	136	endmenu
5ac6da66	137
66d857b0 GU	138	if !MMU
66d857b0 GU	139	menu "Power management options"
1da177e4	140
66d857b0	141	config PM
0e152d80 GU	142	bool "Power Management support"
	143	help
	144	Support processor power management modes
1da177e4 LT	145
1da177e4 LT	146	endmenu
66d857b0	147	endif
1da177e4	148
0e152d80	149	source "arch/m68k/Kconfig.devices"