tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2config M68K
3 bool
4 default y
5 select ARCH_32BIT_OFF_T
6 select ARCH_HAS_BINFMT_FLAT
7 select ARCH_HAS_CURRENT_STACK_POINTER
8 select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
10 select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
11 select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
12 select ARCH_NO_PREEMPT if !COLDFIRE
13 select ARCH_USE_MEMTEST if MMU_MOTOROLA
14 select ARCH_WANT_IPC_PARSE_VERSION
15 select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
16 select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
17 select GENERIC_ATOMIC64
18 select GENERIC_CPU_DEVICES
19 select GENERIC_IOMAP
20 select GENERIC_IRQ_SHOW
21 select HAS_IOPORT if PCI || ISA || ATARI_ROM_ISA
22 select HAVE_ARCH_SECCOMP
23 select HAVE_ARCH_SECCOMP_FILTER
24 select HAVE_ASM_MODVERSIONS
25 select HAVE_DEBUG_BUGVERBOSE
26 select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED
27 select HAVE_MOD_ARCH_SPECIFIC
28 select HAVE_UID16
29 select MMU_GATHER_NO_RANGE if MMU
30 select MODULES_USE_ELF_REL
31 select MODULES_USE_ELF_RELA
32 select NO_DMA if !MMU && !COLDFIRE
33 select OLD_SIGACTION
34 select OLD_SIGSUSPEND3
35 select UACCESS_MEMCPY if !MMU
36 select ZONE_DMA
37
38config CPU_BIG_ENDIAN
39 def_bool y
40
41config ARCH_HAS_ILOG2_U32
42 bool
43
44config ARCH_HAS_ILOG2_U64
45 bool
46
47config GENERIC_HWEIGHT
48 bool
49 default y
50
51config GENERIC_CALIBRATE_DELAY
52 bool
53 default y
54
55config GENERIC_CSUM
56 bool
57
58config TIME_LOW_RES
59 bool
60 default y
61
62config NO_IOPORT_MAP
63 def_bool y
64
65config HZ
66 int
67 default 1000 if CLEOPATRA
68 default 100
69
70config PGTABLE_LEVELS
71 default 2 if SUN3 || COLDFIRE
72 default 3
73
74config MMU
75 bool "MMU-based Paged Memory Management Support"
76 default y
77 help
78 Select if you want MMU-based virtualised addressing space
79 support by paged memory management. If unsure, say 'Y'.
80
81config MMU_MOTOROLA
82 bool
83
84config MMU_COLDFIRE
85 bool
86
87config MMU_SUN3
88 bool
89 depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
90
91config KEXEC
92 bool "kexec system call"
93 depends on M68KCLASSIC && MMU
94 select KEXEC_CORE
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
109config 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
116menu "Platform setup"
117
118source "arch/m68k/Kconfig.cpu"
119
120source "arch/m68k/Kconfig.machine"
121
122source "arch/m68k/Kconfig.bus"
123
124endmenu
125
126menu "Kernel Features"
127
128endmenu
129
130if !MMU
131menu "Power management options"
132
133config PM
134 bool "Power Management support"
135 help
136 Support processor power management modes
137
138endmenu
139endif
140
141source "arch/m68k/Kconfig.devices"