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

# SPDX-License-Identifier: GPL-2.0
config M68K
	bool
	default y
	select ARCH_32BIT_OFF_T
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
	select ARCH_NO_PREEMPT if !COLDFIRE
	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 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
	select MMU_GATHER_NO_RANGE if MMU

config CPU_BIG_ENDIAN
	def_bool y

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"

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
942fa985	5	select ARCH_32BIT_OFF_T
9eb8be60	6	select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
1a7f6be5	7	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
07c75d7a	8	select ARCH_NO_COHERENT_DMA_MMAP if !MMU
87a4c375	9	select ARCH_NO_PREEMPT if !COLDFIRE
ec7748b5	10	select HAVE_IDE
66d857b0	11	select HAVE_AOUT if MMU
9b2a60c4	12	select HAVE_DEBUG_BUGVERBOSE
d890d739	13	select GENERIC_IRQ_SHOW
42b1b946	14	select GENERIC_ATOMIC64
af1839eb	15	select HAVE_UID16
4febd95a	16	select VIRT_TO_BUS
df013ffb	17	select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
9f13a1fd	18	select GENERIC_CPU_DEVICES
f79b8592	19	select GENERIC_IOMAP
d8ce7263 GU	20	select GENERIC_STRNCPY_FROM_USER if MMU
d8ce7263 GU	21	select GENERIC_STRNLEN_USER if MMU
c1d7e01d	22	select ARCH_WANT_IPC_PARSE_VERSION
e571c58f	23	select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
786d35d4 DH	24	select HAVE_MOD_ARCH_SPECIFIC
	25	select MODULES_USE_ELF_REL
	26	select MODULES_USE_ELF_RELA
1ba3e7ef	27	select OLD_SIGSUSPEND3
8be433ab	28	select OLD_SIGACTION
6137fed0	29	select MMU_GATHER_NO_RANGE if MMU
1da177e4	30
4c97a0c8 BM	31	config CPU_BIG_ENDIAN
	32	def_bool y
	33
f0d1b0b3 DH	34	config ARCH_HAS_ILOG2_U32
f0d1b0b3 DH	35	bool
f0d1b0b3 DH	36
	37	config ARCH_HAS_ILOG2_U64
	38	bool
f0d1b0b3	39
ba1a5b32 AM	40	config GENERIC_HWEIGHT
	41	bool
	42	default y
	43
1da177e4 LT	44	config GENERIC_CALIBRATE_DELAY
	45	bool
	46	default y
	47
7f73bafc GU	48	config GENERIC_CSUM
	49	bool
	50
06027bdd IM	51	config TIME_LOW_RES
	52	bool
	53	default y
	54
ce816fa8	55	config NO_IOPORT_MAP
5ea81769 AV	56	def_bool y
5ea81769 AV	57
dfedfaf5	58	config NO_DMA
66d857b0	59	def_bool (MMU && SUN3) \|\| (!MMU && !COLDFIRE)
dfedfaf5	60
66d857b0 GU	61	config ZONE_DMA
	62	bool
	63	default y
171d809d	64
bdc80787 PA	65	config HZ
bdc80787 PA	66	int
66d857b0	67	default 1000 if CLEOPATRA
bdc80787 PA	68	default 100
bdc80787 PA	69
980d5b73 KS	70	config PGTABLE_LEVELS
	71	default 2 if SUN3 \|\| COLDFIRE
	72	default 3
	73
66d857b0 GU	74	config MMU
66d857b0 GU	75	bool "MMU-based Paged Memory Management Support"
1da177e4 LT	76	default y
1da177e4 LT	77	help
66d857b0 GU	78	Select if you want MMU-based virtualised addressing space
66d857b0 GU	79	support by paged memory management. If unsure, say 'Y'.
1da177e4	80
0e152d80 GU	81	config MMU_MOTOROLA
	82	bool
	83
0e6782c8 GU	84	config MMU_COLDFIRE
	85	bool
	86
0e152d80 GU	87	config MMU_SUN3
0e152d80 GU	88	bool
0e6782c8	89	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
0e152d80	90
7d5f5fa2 GU	91	config KEXEC
	92	bool "kexec system call"
	93	depends on M68KCLASSIC
2965faa5	94	select KEXEC_CORE
7d5f5fa2 GU	95	help
	96	kexec is a system call that implements the ability to shutdown your
	97	current kernel, and to start another kernel. It is like a reboot
	98	but it is independent of the system firmware. And like a reboot
	99	you can start any kernel with it, not just Linux.
	100
	101	The name comes from the similarity to the exec system call.
	102
	103	It is an ongoing process to be certain the hardware in a machine
	104	is properly shutdown, so do not be surprised if this code does not
	105	initially work for you. As of this writing the exact hardware
	106	interface is strongly in flux, so no good recommendation can be
	107	made.
	108
7bc1e4d8 GU	109	config BOOTINFO_PROC
	110	bool "Export bootinfo in procfs"
	111	depends on KEXEC && M68KCLASSIC
	112	help
	113	Say Y to export the bootinfo used to boot the kernel in a
	114	"bootinfo" file in procfs. This is useful with kexec.
	115
0e152d80 GU	116	menu "Platform setup"
0e152d80 GU	117
8636a1f9	118	source "arch/m68k/Kconfig.cpu"
0e152d80	119
8636a1f9	120	source "arch/m68k/Kconfig.machine"
0e152d80	121
8636a1f9	122	source "arch/m68k/Kconfig.bus"
0e152d80 GU	123
	124	endmenu
	125
	126	menu "Kernel Features"
1da177e4	127
66d857b0	128	endmenu
5ac6da66	129
66d857b0 GU	130	if !MMU
66d857b0 GU	131	menu "Power management options"
1da177e4	132
66d857b0	133	config PM
0e152d80 GU	134	bool "Power Management support"
	135	help
	136	Support processor power management modes
1da177e4 LT	137
1da177e4 LT	138	endmenu
66d857b0	139	endif
1da177e4	140
0e152d80	141	source "arch/m68k/Kconfig.devices"