1 # SPDX-License-Identifier: GPL-2.0 !! 1 #
2 config LOONGARCH !! 2 # For a description of the syntax of this configuration file,
>> 3 # see Documentation/kbuild/kconfig-language.txt.
>> 4 #
>> 5 config M68K
3 bool 6 bool
4 default y 7 default y
5 select ACPI !! 8 select HAVE_AOUT
6 select ACPI_GENERIC_GSI if ACPI !! 9 select HAVE_IDE
7 select ACPI_MCFG if ACPI <<
8 select ACPI_HOTPLUG_CPU if ACPI_PROCES <<
9 select ACPI_PPTT if ACPI <<
10 select ACPI_SYSTEM_POWER_STATES_SUPPOR <<
11 select ARCH_BINFMT_ELF_STATE <<
12 select ARCH_DISABLE_KASAN_INLINE <<
13 select ARCH_ENABLE_MEMORY_HOTPLUG <<
14 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
15 select ARCH_ENABLE_THP_MIGRATION if TR <<
16 select ARCH_HAS_ACPI_TABLE_UPGRADE <<
17 select ARCH_HAS_CPU_FINALIZE_INIT <<
18 select ARCH_HAS_CURRENT_STACK_POINTER <<
19 select ARCH_HAS_DEBUG_VM_PGTABLE <<
20 select ARCH_HAS_FAST_MULTIPLIER <<
21 select ARCH_HAS_FORTIFY_SOURCE <<
22 select ARCH_HAS_KCOV <<
23 select ARCH_HAS_KERNEL_FPU_SUPPORT if <<
24 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS <<
25 select ARCH_HAS_NON_OVERLAPPING_ADDRES <<
26 select ARCH_HAS_PTE_DEVMAP <<
27 select ARCH_HAS_PTE_SPECIAL <<
28 select ARCH_HAS_SET_MEMORY <<
29 select ARCH_HAS_SET_DIRECT_MAP <<
30 select ARCH_HAS_TICK_BROADCAST if GENE <<
31 select ARCH_INLINE_READ_LOCK if !PREEM <<
32 select ARCH_INLINE_READ_LOCK_BH if !PR <<
33 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
34 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
35 select ARCH_INLINE_READ_UNLOCK if !PRE <<
36 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
37 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
38 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
39 select ARCH_INLINE_WRITE_LOCK if !PREE <<
40 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
41 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
42 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
43 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
44 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
45 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
46 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
47 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
48 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
49 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
50 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
51 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
52 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
53 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
54 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
55 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
56 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
57 select ARCH_KEEP_MEMBLOCK <<
58 select ARCH_MIGHT_HAVE_PC_PARPORT <<
59 select ARCH_MIGHT_HAVE_PC_SERIO <<
60 select ARCH_SPARSEMEM_ENABLE <<
61 select ARCH_STACKWALK <<
62 select ARCH_SUPPORTS_ACPI <<
63 select ARCH_SUPPORTS_ATOMIC_RMW <<
64 select ARCH_SUPPORTS_HUGETLBFS <<
65 select ARCH_SUPPORTS_INT128 if CC_HAS_ <<
66 select ARCH_SUPPORTS_LTO_CLANG <<
67 select ARCH_SUPPORTS_LTO_CLANG_THIN <<
68 select ARCH_SUPPORTS_NUMA_BALANCING <<
69 select ARCH_USE_BUILTIN_BSWAP <<
70 select ARCH_USE_CMPXCHG_LOCKREF <<
71 select ARCH_USE_QUEUED_RWLOCKS <<
72 select ARCH_USE_QUEUED_SPINLOCKS <<
73 select ARCH_WANT_DEFAULT_BPF_JIT <<
74 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
75 select ARCH_WANT_LD_ORPHAN_WARN <<
76 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM <<
77 select ARCH_WANTS_NO_INSTR <<
78 select ARCH_WANTS_THP_SWAP if HAVE_ARC <<
79 select BUILDTIME_TABLE_SORT <<
80 select COMMON_CLK <<
81 select CPU_PM <<
82 select EFI <<
83 select GENERIC_CLOCKEVENTS <<
84 select GENERIC_CMOS_UPDATE <<
85 select GENERIC_CPU_AUTOPROBE <<
86 select GENERIC_CPU_DEVICES <<
87 select GENERIC_CPU_VULNERABILITIES <<
88 select GENERIC_ENTRY <<
89 select GENERIC_GETTIMEOFDAY <<
90 select GENERIC_IOREMAP if !ARCH_IOREMA <<
91 select GENERIC_IRQ_MATRIX_ALLOCATOR <<
92 select GENERIC_IRQ_MULTI_HANDLER <<
93 select GENERIC_IRQ_PROBE <<
94 select GENERIC_IRQ_SHOW <<
95 select GENERIC_LIB_ASHLDI3 <<
96 select GENERIC_LIB_ASHRDI3 <<
97 select GENERIC_LIB_CMPDI2 <<
98 select GENERIC_LIB_LSHRDI3 <<
99 select GENERIC_LIB_UCMPDI2 <<
100 select GENERIC_LIB_DEVMEM_IS_ALLOWED <<
101 select GENERIC_PCI_IOMAP <<
102 select GENERIC_SCHED_CLOCK <<
103 select GENERIC_SMP_IDLE_THREAD <<
104 select GENERIC_TIME_VSYSCALL <<
105 select GENERIC_VDSO_TIME_NS <<
106 select GPIOLIB <<
107 select HAS_IOPORT <<
108 select HAVE_ARCH_AUDITSYSCALL <<
109 select HAVE_ARCH_JUMP_LABEL <<
110 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
111 select HAVE_ARCH_KASAN <<
112 select HAVE_ARCH_KFENCE <<
113 select HAVE_ARCH_KGDB if PERF_EVENTS <<
114 select HAVE_ARCH_MMAP_RND_BITS if MMU <<
115 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS <<
116 select HAVE_ARCH_SECCOMP <<
117 select HAVE_ARCH_SECCOMP_FILTER <<
118 select HAVE_ARCH_TRACEHOOK <<
119 select HAVE_ARCH_TRANSPARENT_HUGEPAGE <<
120 select HAVE_ARCH_USERFAULTFD_MINOR if <<
121 select HAVE_ASM_MODVERSIONS <<
122 select HAVE_CONTEXT_TRACKING_USER <<
123 select HAVE_C_RECORDMCOUNT <<
124 select HAVE_DEBUG_KMEMLEAK <<
125 select HAVE_DEBUG_STACKOVERFLOW <<
126 select HAVE_DMA_CONTIGUOUS <<
127 select HAVE_DYNAMIC_FTRACE <<
128 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
129 select HAVE_DYNAMIC_FTRACE_WITH_DIRECT <<
130 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
131 select HAVE_EBPF_JIT <<
132 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
133 select HAVE_EXIT_THREAD <<
134 select HAVE_GUP_FAST <<
135 select HAVE_FTRACE_MCOUNT_RECORD <<
136 select HAVE_FUNCTION_ARG_ACCESS_API <<
137 select HAVE_FUNCTION_ERROR_INJECTION <<
138 select HAVE_FUNCTION_GRAPH_RETVAL if H <<
139 select HAVE_FUNCTION_GRAPH_TRACER <<
140 select HAVE_FUNCTION_TRACER <<
141 select HAVE_GCC_PLUGINS <<
142 select HAVE_GENERIC_VDSO <<
143 select HAVE_HW_BREAKPOINT if PERF_EVEN <<
144 select HAVE_IOREMAP_PROT <<
145 select HAVE_IRQ_EXIT_ON_IRQ_STACK <<
146 select HAVE_IRQ_TIME_ACCOUNTING <<
147 select HAVE_KPROBES <<
148 select HAVE_KPROBES_ON_FTRACE <<
149 select HAVE_KRETPROBES <<
150 select HAVE_LIVEPATCH <<
151 select HAVE_MOD_ARCH_SPECIFIC <<
152 select HAVE_NMI <<
153 select HAVE_OBJTOOL if AS_HAS_EXPLICIT <<
154 select HAVE_PCI <<
155 select HAVE_PERF_EVENTS <<
156 select HAVE_PERF_REGS <<
157 select HAVE_PERF_USER_STACK_DUMP <<
158 select HAVE_PREEMPT_DYNAMIC_KEY <<
159 select HAVE_REGS_AND_STACK_ACCESS_API <<
160 select HAVE_RELIABLE_STACKTRACE if UNW <<
161 select HAVE_RETHOOK <<
162 select HAVE_RSEQ <<
163 select HAVE_RUST <<
164 select HAVE_SAMPLE_FTRACE_DIRECT <<
165 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI <<
166 select HAVE_SETUP_PER_CPU_AREA if NUMA <<
167 select HAVE_STACK_VALIDATION if HAVE_O <<
168 select HAVE_STACKPROTECTOR <<
169 select HAVE_SYSCALL_TRACEPOINTS <<
170 select HAVE_TIF_NOHZ <<
171 select HAVE_VIRT_CPU_ACCOUNTING_GEN if <<
172 select IRQ_FORCED_THREADING <<
173 select IRQ_LOONGARCH_CPU <<
174 select LOCK_MM_AND_FIND_VMA <<
175 select MMU_GATHER_MERGE_VMAS if MMU <<
176 select MODULES_USE_ELF_RELA if MODULES <<
177 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
178 select NEED_PER_CPU_PAGE_FIRST_CHUNK <<
179 select OF <<
180 select OF_EARLY_FLATTREE <<
181 select PCI <<
182 select PCI_DOMAINS_GENERIC <<
183 select PCI_ECAM if ACPI <<
184 select PCI_LOONGSON <<
185 select PCI_MSI_ARCH_FALLBACKS <<
186 select PCI_QUIRKS <<
187 select PERF_USE_VMALLOC <<
188 select RTC_LIB <<
189 select SPARSE_IRQ <<
190 select SYSCTL_ARCH_UNALIGN_ALLOW <<
191 select SYSCTL_ARCH_UNALIGN_NO_WARN <<
192 select SYSCTL_EXCEPTION_TRACE <<
193 select SWIOTLB <<
194 select TRACE_IRQFLAGS_SUPPORT <<
195 select USE_PERCPU_NUMA_NODE_ID <<
196 select USER_STACKTRACE_SUPPORT <<
197 select VDSO_GETRANDOM <<
198 select ZONE_DMA32 <<
199 10
200 config 32BIT !! 11 config MMU
201 bool 12 bool
>> 13 default y
202 14
203 config 64BIT !! 15 config RWSEM_GENERIC_SPINLOCK
204 def_bool y !! 16 bool
205 !! 17 default y
206 config GENERIC_BUG <<
207 def_bool y <<
208 depends on BUG <<
209 18
210 config GENERIC_BUG_RELATIVE_POINTERS !! 19 config RWSEM_XCHGADD_ALGORITHM
211 def_bool y !! 20 bool
212 depends on GENERIC_BUG <<
213 21
214 config GENERIC_CALIBRATE_DELAY !! 22 config ARCH_HAS_ILOG2_U32
215 def_bool y !! 23 bool
>> 24 default n
216 25
217 config GENERIC_CSUM !! 26 config ARCH_HAS_ILOG2_U64
218 def_bool y !! 27 bool
>> 28 default n
219 29
220 config GENERIC_HWEIGHT 30 config GENERIC_HWEIGHT
221 def_bool y <<
222 <<
223 config L1_CACHE_SHIFT <<
224 int <<
225 default "6" <<
226 <<
227 config LOCKDEP_SUPPORT <<
228 bool 31 bool
229 default y 32 default y
230 33
231 config STACKTRACE_SUPPORT !! 34 config GENERIC_CALIBRATE_DELAY
232 bool 35 bool
233 default y 36 default y
234 37
235 # MACH_LOONGSON32 and MACH_LOONGSON64 are deli !! 38 config TIME_LOW_RES
236 # MIPS Loongson code, to preserve Loongson-spe <<
237 # are shared between architectures, and specif <<
238 config MACH_LOONGSON32 <<
239 def_bool 32BIT <<
240 <<
241 config MACH_LOONGSON64 <<
242 def_bool 64BIT <<
243 <<
244 config FIX_EARLYCON_MEM <<
245 def_bool y <<
246 <<
247 config PGTABLE_2LEVEL <<
248 bool 39 bool
>> 40 default y
249 41
250 config PGTABLE_3LEVEL !! 42 config GENERIC_IOMAP
251 bool 43 bool
>> 44 default y
252 45
253 config PGTABLE_4LEVEL !! 46 config ARCH_MAY_HAVE_PC_FDC
254 bool 47 bool
>> 48 depends on BROKEN && (Q40 || SUN3X)
>> 49 default y
>> 50
>> 51 config NO_IOPORT
>> 52 def_bool y
255 53
256 config PGTABLE_LEVELS !! 54 config NO_DMA
>> 55 def_bool SUN3
>> 56
>> 57 config HZ
257 int 58 int
258 default 2 if PGTABLE_2LEVEL !! 59 default 100
259 default 3 if PGTABLE_3LEVEL <<
260 default 4 if PGTABLE_4LEVEL <<
261 60
262 config SCHED_OMIT_FRAME_POINTER !! 61 config GENERIC_TIME
263 bool !! 62 def_bool y
264 default y <<
265 63
266 config AS_HAS_EXPLICIT_RELOCS !! 64 config ARCH_USES_GETTIMEOFFSET
267 def_bool $(as-instr,x:pcalau12i \$t0$( !! 65 def_bool y
268 66
269 config AS_HAS_FCSR_CLASS !! 67 mainmenu "Linux/68k Kernel Configuration"
270 def_bool $(as-instr,movfcsr2gr \$t0$(c <<
271 68
272 config AS_HAS_THIN_ADD_SUB !! 69 source "init/Kconfig"
273 def_bool $(cc-option,-Wa$(comma)-mthin <<
274 70
275 config AS_HAS_LSX_EXTENSION !! 71 source "kernel/Kconfig.freezer"
276 def_bool $(as-instr,vld \$vr0$(comma)\ <<
277 72
278 config AS_HAS_LASX_EXTENSION !! 73 menu "Platform dependent setup"
279 def_bool $(as-instr,xvld \$xr0$(comma) <<
280 74
281 config AS_HAS_LBT_EXTENSION !! 75 config EISA
282 def_bool $(as-instr,movscr2gr \$a0$(co !! 76 bool
>> 77 ---help---
>> 78 The Extended Industry Standard Architecture (EISA) bus was
>> 79 developed as an open alternative to the IBM MicroChannel bus.
283 80
284 config AS_HAS_LVZ_EXTENSION !! 81 The EISA bus provided some of the features of the IBM MicroChannel
285 def_bool $(as-instr,hvcl 0) !! 82 bus while maintaining backward compatibility with cards made for
>> 83 the older ISA bus. The EISA bus saw limited use between 1988 and
>> 84 1995 when it was made obsolete by the PCI bus.
286 85
287 menu "Kernel type and options" !! 86 Say Y here if you are building a kernel for an EISA-based machine.
288 87
289 source "kernel/Kconfig.hz" !! 88 Otherwise, say N.
290 89
291 choice !! 90 config MCA
292 prompt "Page Table Layout" !! 91 bool
293 default 16KB_2LEVEL if 32BIT <<
294 default 16KB_3LEVEL if 64BIT <<
295 help 92 help
296 Allows choosing the page table layou !! 93 MicroChannel Architecture is found in some IBM PS/2 machines and
297 of page size and page table levels. !! 94 laptops. It is a bus system similar to PCI or ISA. See
298 address space are determined by the !! 95 <file:Documentation/mca.txt> (and especially the web page given
>> 96 there) before attempting to build an MCA bus kernel.
299 97
300 config 4KB_3LEVEL !! 98 config PCMCIA
301 bool "4KB with 3 levels" !! 99 tristate
302 select HAVE_PAGE_SIZE_4KB !! 100 ---help---
303 select PGTABLE_3LEVEL !! 101 Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
304 help !! 102 computer. These are credit-card size devices such as network cards,
305 This option selects 4KB page size wi !! 103 modems or hard drives often used with laptops computers. There are
306 support a maximum of 39 bits of appl !! 104 actually two varieties of these cards: the older 16 bit PCMCIA cards
>> 105 and the newer 32 bit CardBus cards. If you want to use CardBus
>> 106 cards, you need to say Y here and also to "CardBus support" below.
307 107
308 config 4KB_4LEVEL !! 108 To use your PC-cards, you will need supporting software from David
309 bool "4KB with 4 levels" !! 109 Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
310 select HAVE_PAGE_SIZE_4KB !! 110 for location). Please also read the PCMCIA-HOWTO, available from
311 select PGTABLE_4LEVEL !! 111 <http://www.tldp.org/docs.html#howto>.
312 help <<
313 This option selects 4KB page size wi <<
314 support a maximum of 48 bits of appl <<
315 112
316 config 16KB_2LEVEL !! 113 To compile this driver as modules, choose M here: the
317 bool "16KB with 2 levels" !! 114 modules will be called pcmcia_core and ds.
318 select HAVE_PAGE_SIZE_16KB <<
319 select PGTABLE_2LEVEL <<
320 help <<
321 This option selects 16KB page size w <<
322 support a maximum of 36 bits of appl <<
323 115
324 config 16KB_3LEVEL !! 116 config AMIGA
325 bool "16KB with 3 levels" !! 117 bool "Amiga support"
326 select HAVE_PAGE_SIZE_16KB !! 118 select MMU_MOTOROLA if MMU
327 select PGTABLE_3LEVEL <<
328 help 119 help
329 This option selects 16KB page size w !! 120 This option enables support for the Amiga series of computers. If
330 support a maximum of 47 bits of appl !! 121 you plan to use this kernel on an Amiga, say Y here and browse the
>> 122 material available in <file:Documentation/m68k>; otherwise say N.
331 123
332 config 64KB_2LEVEL !! 124 config ATARI
333 bool "64KB with 2 levels" !! 125 bool "Atari support"
334 select HAVE_PAGE_SIZE_64KB !! 126 select MMU_MOTOROLA if MMU
335 select PGTABLE_2LEVEL <<
336 help 127 help
337 This option selects 64KB page size w !! 128 This option enables support for the 68000-based Atari series of
338 support a maximum of 42 bits of appl !! 129 computers (including the TT, Falcon and Medusa). If you plan to use
>> 130 this kernel on an Atari, say Y here and browse the material
>> 131 available in <file:Documentation/m68k>; otherwise say N.
339 132
340 config 64KB_3LEVEL !! 133 config MAC
341 bool "64KB with 3 levels" !! 134 bool "Macintosh support"
342 select HAVE_PAGE_SIZE_64KB !! 135 select MMU_MOTOROLA if MMU
343 select PGTABLE_3LEVEL <<
344 help 136 help
345 This option selects 64KB page size w !! 137 This option enables support for the Apple Macintosh series of
346 support a maximum of 55 bits of appl !! 138 computers (yes, there is experimental support now, at least for part
>> 139 of the series).
347 140
348 endchoice !! 141 Say N unless you're willing to code the remaining necessary support.
>> 142 ;)
349 143
350 config CMDLINE !! 144 config NUBUS
351 string "Built-in kernel command line" !! 145 bool
352 help !! 146 depends on MAC
353 For most platforms, the arguments fo !! 147 default y
354 are provided at run-time, during boo <<
355 where either no arguments are being <<
356 arguments are insufficient or even i <<
357 148
358 When that occurs, it is possible to !! 149 config M68K_L2_CACHE
359 line here and choose how the kernel !! 150 bool
>> 151 depends on MAC
>> 152 default y
360 153
361 choice !! 154 config APOLLO
362 prompt "Kernel command line type" !! 155 bool "Apollo support"
363 default CMDLINE_BOOTLOADER !! 156 select MMU_MOTOROLA if MMU
364 help 157 help
365 Choose how the kernel will handle th !! 158 Say Y here if you want to run Linux on an MC680x0-based Apollo
366 line. !! 159 Domain workstation such as the DN3500.
367 160
368 config CMDLINE_BOOTLOADER !! 161 config VME
369 bool "Use bootloader kernel arguments !! 162 bool "VME (Motorola and BVM) support"
>> 163 select MMU_MOTOROLA if MMU
370 help 164 help
371 Prefer the command-line passed by th !! 165 Say Y here if you want to build a kernel for a 680x0 based VME
372 Use the built-in command line as fal !! 166 board. Boards currently supported include Motorola boards MVME147,
373 during boot. This is the default beh !! 167 MVME162, MVME166, MVME167, MVME172, and MVME177. BVME4000 and
>> 168 BVME6000 boards from BVM Ltd are also supported.
374 169
375 config CMDLINE_EXTEND !! 170 config MVME147
376 bool "Use built-in to extend bootloade !! 171 bool "MVME147 support"
>> 172 depends on VME
377 help 173 help
378 The command-line arguments provided !! 174 Say Y to include support for early Motorola VME boards. This will
379 appended to the built-in command lin !! 175 build a kernel which can run on MVME147 single-board computers. If
380 cases where the provided arguments a !! 176 you select this option you will have to select the appropriate
381 you don't want to or cannot modify t !! 177 drivers for SCSI, Ethernet and serial ports later on.
382 178
383 config CMDLINE_FORCE !! 179 config MVME16x
384 bool "Always use the built-in kernel c !! 180 bool "MVME162, 166 and 167 support"
>> 181 depends on VME
385 help 182 help
386 Always use the built-in command line !! 183 Say Y to include support for Motorola VME boards. This will build a
387 boot. This is useful in case you nee !! 184 kernel which can run on MVME162, MVME166, MVME167, MVME172, and
388 command line on systems where you do !! 185 MVME177 boards. If you select this option you will have to select
389 over it. !! 186 the appropriate drivers for SCSI, Ethernet and serial ports later
390 !! 187 on.
391 endchoice <<
392 188
393 config BUILTIN_DTB !! 189 config BVME6000
394 bool "Enable built-in dtb in kernel" !! 190 bool "BVME4000 and BVME6000 support"
395 depends on OF !! 191 depends on VME
396 help 192 help
397 Some existing systems do not provide !! 193 Say Y to include support for VME boards from BVM Ltd. This will
398 the kernel at boot time. Let's provi !! 194 build a kernel which can run on BVME4000 and BVME6000 boards. If
399 kernel, keyed by the dts filename, c !! 195 you select this option you will have to select the appropriate
>> 196 drivers for SCSI, Ethernet and serial ports later on.
400 197
401 Built-in DTBs are generic enough and !! 198 config HP300
402 !! 199 bool "HP9000/300 and HP9000/400 support"
403 config BUILTIN_DTB_NAME !! 200 select MMU_MOTOROLA if MMU
404 string "Source file for built-in dtb" <<
405 depends on BUILTIN_DTB <<
406 help 201 help
407 Base name (without suffix, relative !! 202 This option enables support for the HP9000/300 and HP9000/400 series
408 for the DTS file that will be used t !! 203 of workstations. Support for these machines is still somewhat
409 the kernel. !! 204 experimental. If you plan to try to use the kernel on such a machine
>> 205 say Y here.
>> 206 Everybody else says N.
410 207
411 config DMI !! 208 config DIO
412 bool "Enable DMI scanning" !! 209 bool "DIO bus support"
413 select DMI_SCAN_MACHINE_NON_EFI_FALLBA !! 210 depends on HP300
414 default y 211 default y
415 help 212 help
416 This enables SMBIOS/DMI feature for !! 213 Say Y here to enable support for the "DIO" expansion bus used in
417 DMI to identify machine quirks. !! 214 HP300 machines. If you are using such a system you almost certainly
>> 215 want this.
418 216
419 config EFI !! 217 config SUN3X
420 bool "EFI runtime service support" !! 218 bool "Sun3x support"
421 select UCS2_STRING !! 219 select MMU_MOTOROLA if MMU
422 select EFI_RUNTIME_WRAPPERS !! 220 select M68030
423 help 221 help
424 This enables the kernel to use EFI r !! 222 This option enables support for the Sun 3x series of workstations.
425 available (such as the EFI variable !! 223 Be warned that this support is very experimental.
>> 224 Note that Sun 3x kernels are not compatible with Sun 3 hardware.
>> 225 General Linux information on the Sun 3x series (now discontinued)
>> 226 is at <http://www.angelfire.com/ca2/tech68k/sun3.html>.
426 227
427 config EFI_STUB !! 228 If you don't want to compile a kernel for a Sun 3x, say N.
428 bool "EFI boot stub support" <<
429 default y <<
430 depends on EFI <<
431 select EFI_GENERIC_STUB <<
432 help <<
433 This kernel feature allows the kerne <<
434 EFI firmware without the use of a bo <<
435 229
436 config SCHED_SMT !! 230 config Q40
437 bool "SMT scheduler support" !! 231 bool "Q40/Q60 support"
438 depends on SMP !! 232 select MMU_MOTOROLA if MMU
439 default y <<
440 help 233 help
441 Improves scheduler's performance whe !! 234 The Q40 is a Motorola 68040-based successor to the Sinclair QL
442 threads in one physical core. !! 235 manufactured in Germany. There is an official Q40 home page at
>> 236 <http://www.q40.de/>. This option enables support for the Q40 and
>> 237 Q60. Select your CPU below. For 68LC060 don't forget to enable FPU
>> 238 emulation.
443 239
444 config SMP !! 240 config SUN3
445 bool "Multi-Processing support" !! 241 bool "Sun3 support"
>> 242 depends on !MMU_MOTOROLA
>> 243 select MMU_SUN3 if MMU
>> 244 select M68020
446 help 245 help
447 This enables support for systems wit !! 246 This option enables support for the Sun 3 series of workstations
448 a system with only one CPU, say N. I !! 247 (3/50, 3/60, 3/1xx, 3/2xx systems). Enabling this option requires
449 than one CPU, say Y. !! 248 that all other hardware types must be disabled, as Sun 3 kernels
>> 249 are incompatible with all other m68k targets (including Sun 3x!).
450 250
451 If you say N here, the kernel will r !! 251 If you don't want to compile a kernel exclusively for a Sun 3, say N.
452 machines, but will use only one CPU <<
453 you say Y here, the kernel will run <<
454 uniprocessor machines. On a uniproce <<
455 will run faster if you say N here. <<
456 252
457 See also the SMP-HOWTO available at !! 253 comment "Processor type"
458 254
459 If you don't know what to do here, s !! 255 config M68020
>> 256 bool "68020 support"
>> 257 help
>> 258 If you anticipate running this kernel on a computer with a MC68020
>> 259 processor, say Y. Otherwise, say N. Note that the 68020 requires a
>> 260 68851 MMU (Memory Management Unit) to run Linux/m68k, except on the
>> 261 Sun 3, which provides its own version.
460 262
461 config HOTPLUG_CPU !! 263 config M68030
462 bool "Support for hot-pluggable CPUs" !! 264 bool "68030 support"
463 depends on SMP !! 265 depends on !MMU_SUN3
464 select GENERIC_IRQ_MIGRATION <<
465 help 266 help
466 Say Y here to allow turning CPUs off !! 267 If you anticipate running this kernel on a computer with a MC68030
467 controlled through /sys/devices/syst !! 268 processor, say Y. Otherwise, say N. Note that a MC68EC030 will not
468 (Note: power management support will !! 269 work, as it does not include an MMU (Memory Management Unit).
469 automatically on SMP systems. ) <<
470 Say N if you want to disable CPU hot <<
471 270
472 config NR_CPUS !! 271 config M68040
473 int "Maximum number of CPUs (2-256)" !! 272 bool "68040 support"
474 range 2 256 !! 273 depends on !MMU_SUN3
475 depends on SMP <<
476 default "64" <<
477 help 274 help
478 This allows you to specify the maxim !! 275 If you anticipate running this kernel on a computer with a MC68LC040
479 kernel will support. !! 276 or MC68040 processor, say Y. Otherwise, say N. Note that an
>> 277 MC68EC040 will not work, as it does not include an MMU (Memory
>> 278 Management Unit).
480 279
481 config NUMA !! 280 config M68060
482 bool "NUMA Support" !! 281 bool "68060 support"
483 select SMP !! 282 depends on !MMU_SUN3
484 help 283 help
485 Say Y to compile the kernel with NUM !! 284 If you anticipate running this kernel on a computer with a MC68060
486 support. This option improves perfo !! 285 processor, say Y. Otherwise, say N.
487 than one NUMA node; on single node s <<
488 to leave it disabled. <<
489 286
490 config NODES_SHIFT !! 287 config MMU_MOTOROLA
491 int !! 288 bool
492 default "6" <<
493 depends on NUMA <<
494 289
495 config ARCH_FORCE_MAX_ORDER !! 290 config MMU_SUN3
496 int "Maximum zone order" !! 291 bool
497 default "13" if PAGE_SIZE_64KB !! 292 depends on MMU && !MMU_MOTOROLA
498 default "11" if PAGE_SIZE_16KB <<
499 default "10" <<
500 help <<
501 The kernel memory allocator divides <<
502 blocks into "zones", where each zone <<
503 pages. This option selects the larg <<
504 keeps in the memory allocator. If y <<
505 blocks of physically contiguous memo <<
506 increase this value. <<
507 293
508 The page size is not necessarily 4KB !! 294 config M68KFPU_EMU
509 when choosing a value for this optio !! 295 bool "Math emulation support (EXPERIMENTAL)"
>> 296 depends on EXPERIMENTAL
>> 297 help
>> 298 At some point in the future, this will cause floating-point math
>> 299 instructions to be emulated by the kernel on machines that lack a
>> 300 floating-point math coprocessor. Thrill-seekers and chronically
>> 301 sleep-deprived psychotic hacker types can say Y now, everyone else
>> 302 should probably wait a while.
510 303
511 config ARCH_IOREMAP !! 304 config M68KFPU_EMU_EXTRAPREC
512 bool "Enable LoongArch DMW-based iorem !! 305 bool "Math emulation extra precision"
>> 306 depends on M68KFPU_EMU
513 help 307 help
514 We use generic TLB-based ioremap() b !! 308 The fpu uses normally a few bit more during calculations for
515 protection support. However, you can !! 309 correct rounding, the emulator can (often) do the same but this
516 ioremap() for better performance. !! 310 extra calculation can cost quite some time, so you can disable
>> 311 it here. The emulator will then "only" calculate with a 64 bit
>> 312 mantissa and round slightly incorrect, what is more than enough
>> 313 for normal usage.
517 314
518 config ARCH_WRITECOMBINE !! 315 config M68KFPU_EMU_ONLY
519 bool "Enable WriteCombine (WUC) for io !! 316 bool "Math emulation only kernel"
>> 317 depends on M68KFPU_EMU
520 help 318 help
521 LoongArch maintains cache coherency !! 319 This option prevents any floating-point instructions from being
522 with LS7A chipsets the WUC attribute !! 320 compiled into the kernel, thereby the kernel doesn't save any
523 is similar to WriteCombine) is out o !! 321 floating point context anymore during task switches, so this
524 machanism for PCIe devices (this is !! 322 kernel will only be usable on machines without a floating-point
525 may be fixed in newer chipsets). !! 323 math coprocessor. This makes the kernel a bit faster as no tests
>> 324 needs to be executed whether a floating-point instruction in the
>> 325 kernel should be executed or not.
526 326
527 This means WUC can only used for wri !! 327 config ADVANCED
528 this option is disabled by default, !! 328 bool "Advanced configuration options"
529 SUC for ioremap(). You can enable th !! 329 ---help---
530 to run on hardware without this bug. !! 330 This gives you access to some advanced options for the CPU. The
>> 331 defaults should be fine for most users, but these options may make
>> 332 it possible for you to improve performance somewhat if you know what
>> 333 you are doing.
531 334
532 You can override this setting via wr !! 335 Note that the answer to this question won't directly affect the
>> 336 kernel: saying N will just cause the configurator to skip all
>> 337 the questions about these options.
533 338
534 config ARCH_STRICT_ALIGN !! 339 Most users should say N to this question.
535 bool "Enable -mstrict-align to prevent !! 340
536 default y !! 341 config RMW_INSNS
>> 342 bool "Use read-modify-write instructions"
>> 343 depends on ADVANCED
>> 344 ---help---
>> 345 This allows to use certain instructions that work with indivisible
>> 346 read-modify-write bus cycles. While this is faster than the
>> 347 workaround of disabling interrupts, it can conflict with DMA
>> 348 ( = direct memory access) on many Amiga systems, and it is also said
>> 349 to destabilize other machines. It is very likely that this will
>> 350 cause serious problems on any Amiga or Atari Medusa if set. The only
>> 351 configuration where it should work are 68030-based Ataris, where it
>> 352 apparently improves performance. But you've been warned! Unless you
>> 353 really know what you are doing, say N. Try Y only if you're quite
>> 354 adventurous.
>> 355
>> 356 config SINGLE_MEMORY_CHUNK
>> 357 bool "Use one physical chunk of memory only" if ADVANCED && !SUN3
>> 358 default y if SUN3
>> 359 select NEED_MULTIPLE_NODES
537 help 360 help
538 Not all LoongArch cores support h/w !! 361 Ignore all but the first contiguous chunk of physical memory for VM
539 -mstrict-align build parameter to pr !! 362 purposes. This will save a few bytes kernel size and may speed up
>> 363 some operations. Say N if not sure.
540 364
541 CPUs with h/w unaligned access suppo !! 365 config 060_WRITETHROUGH
542 Loongson-2K2000/2K3000/3A5000/3C5000 !! 366 bool "Use write-through caching for 68060 supervisor accesses"
>> 367 depends on ADVANCED && M68060
>> 368 ---help---
>> 369 The 68060 generally uses copyback caching of recently accessed data.
>> 370 Copyback caching means that memory writes will be held in an on-chip
>> 371 cache and only written back to memory some time later. Saying Y
>> 372 here will force supervisor (kernel) accesses to use writethrough
>> 373 caching. Writethrough caching means that data is written to memory
>> 374 straight away, so that cache and memory data always agree.
>> 375 Writethrough caching is less efficient, but is needed for some
>> 376 drivers on 68060 based systems where the 68060 bus snooping signal
>> 377 is hardwired on. The 53c710 SCSI driver is known to suffer from
>> 378 this problem.
543 379
544 CPUs without h/w unaligned access su !! 380 config ARCH_DISCONTIGMEM_ENABLE
545 Loongson-2K500/2K1000. !! 381 def_bool !SINGLE_MEMORY_CHUNK
546 382
547 This option is enabled by default to !! 383 config NODES_SHIFT
548 on all LoongArch systems. But you ca !! 384 int
549 to run kernel only on systems with h !! 385 default "3"
550 order to optimise for performance. !! 386 depends on !SINGLE_MEMORY_CHUNK
551 387
552 config CPU_HAS_FPU !! 388 source "mm/Kconfig"
553 bool <<
554 default y <<
555 389
556 config CPU_HAS_LSX !! 390 endmenu
557 bool "Support for the Loongson SIMD Ex !! 391
558 depends on AS_HAS_LSX_EXTENSION !! 392 menu "General setup"
>> 393
>> 394 source "fs/Kconfig.binfmt"
>> 395
>> 396 config ZORRO
>> 397 bool "Amiga Zorro (AutoConfig) bus support"
>> 398 depends on AMIGA
559 help 399 help
560 Loongson SIMD Extension (LSX) introd !! 400 This enables support for the Zorro bus in the Amiga. If you have
561 and a set of SIMD instructions to op !! 401 expansion cards in your Amiga that conform to the Amiga
562 is enabled the kernel will support a !! 402 AutoConfig(tm) specification, say Y, otherwise N. Note that even
563 vector register contexts. If you kno !! 403 expansion cards that do not fit in the Zorro slots but fit in e.g.
564 running on CPUs which do not support !! 404 the CPU slot may fall in this category, so you have to say Y to let
565 not be making use of it then you may !! 405 Linux use these.
566 the size & complexity of your kernel <<
567 406
568 If unsure, say Y. !! 407 config AMIGA_PCMCIA
>> 408 bool "Amiga 1200/600 PCMCIA support (EXPERIMENTAL)"
>> 409 depends on AMIGA && EXPERIMENTAL
>> 410 help
>> 411 Include support in the kernel for pcmcia on Amiga 1200 and Amiga
>> 412 600. If you intend to use pcmcia cards say Y; otherwise say N.
569 413
570 config CPU_HAS_LASX !! 414 config STRAM_PROC
571 bool "Support for the Loongson Advance !! 415 bool "ST-RAM statistics in /proc"
572 depends on CPU_HAS_LSX !! 416 depends on ATARI
573 depends on AS_HAS_LASX_EXTENSION <<
574 help 417 help
575 Loongson Advanced SIMD Extension (LA !! 418 Say Y here to report ST-RAM usage statistics in /proc/stram.
576 registers and a set of SIMD instruct <<
577 option is enabled the kernel will su <<
578 vector register contexts. If you kno <<
579 running on CPUs which do not support <<
580 not be making use of it then you may <<
581 the size & complexity of your kernel <<
582 419
583 If unsure, say Y. !! 420 config HEARTBEAT
>> 421 bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || MAC ||Q40
>> 422 default y if !AMIGA && !APOLLO && !ATARI && !MAC && !Q40 && HP300
>> 423 help
>> 424 Use the power-on LED on your machine as a load meter. The exact
>> 425 behavior is platform-dependent, but normally the flash frequency is
>> 426 a hyperbolic function of the 5-minute load average.
584 427
585 config CPU_HAS_LBT !! 428 # We have a dedicated heartbeat LED. :-)
586 bool "Support for the Loongson Binary !! 429 config PROC_HARDWARE
587 depends on AS_HAS_LBT_EXTENSION !! 430 bool "/proc/hardware support"
588 help 431 help
589 Loongson Binary Translation (LBT) in !! 432 Say Y here to support the /proc/hardware file, which gives you
590 to SCR3), x86/ARM eflags (eflags) an !! 433 access to information about the machine you're running on,
591 Enabling this option allows the kern !! 434 including the model, CPU, MMU, clock speed, BogoMIPS rating,
592 specific to LBT. !! 435 and memory size.
593 436
594 If you want to use this feature, suc !! 437 config ISA
595 Translator (LAT), say Y. !! 438 bool
>> 439 depends on Q40 || AMIGA_PCMCIA || GG2
>> 440 default y
>> 441 help
>> 442 Find out whether you have ISA slots on your motherboard. ISA is the
>> 443 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 444 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 445 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 446 newer boards don't support it. If you have ISA, say Y, otherwise N.
596 447
597 config CPU_HAS_PREFETCH !! 448 config GENERIC_ISA_DMA
598 bool 449 bool
>> 450 depends on Q40 || AMIGA_PCMCIA || GG2
599 default y 451 default y
600 452
601 config ARCH_SUPPORTS_KEXEC !! 453 config ZONE_DMA
602 def_bool y !! 454 bool
>> 455 default y
603 456
604 config ARCH_SUPPORTS_CRASH_DUMP !! 457 source "drivers/pci/Kconfig"
605 def_bool y <<
606 458
607 config ARCH_SELECTS_CRASH_DUMP !! 459 source "drivers/zorro/Kconfig"
608 def_bool y <<
609 depends on CRASH_DUMP <<
610 select RELOCATABLE <<
611 460
612 config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATIO !! 461 endmenu
613 def_bool CRASH_RESERVE <<
614 462
615 config RELOCATABLE !! 463 source "net/Kconfig"
616 bool "Relocatable kernel" <<
617 select ARCH_HAS_RELR <<
618 help <<
619 This builds the kernel as a Position <<
620 which retains all relocation metadat <<
621 the kernel binary at runtime to a di <<
622 its link address. <<
623 464
624 config RANDOMIZE_BASE !! 465 source "drivers/Kconfig"
625 bool "Randomize the address of the ker <<
626 depends on RELOCATABLE <<
627 help <<
628 Randomizes the physical and virtual <<
629 kernel image is loaded, as a securi <<
630 deters exploit attempts relying on <<
631 of kernel internals. <<
632 466
633 The kernel will be offset by up to !! 467 menu "Character devices"
634 468
635 If unsure, say N. !! 469 config ATARI_MFPSER
>> 470 tristate "Atari MFP serial support"
>> 471 depends on ATARI
>> 472 ---help---
>> 473 If you like to use the MFP serial ports ("Modem1", "Serial1") under
>> 474 Linux, say Y. The driver equally supports all kinds of MFP serial
>> 475 ports and automatically detects whether Serial1 is available.
636 476
637 config RANDOMIZE_BASE_MAX_OFFSET !! 477 To compile this driver as a module, choose M here.
638 hex "Maximum KASLR offset" if EXPERT !! 478
639 depends on RANDOMIZE_BASE !! 479 Note for Falcon users: You also have an MFP port, it's just not
640 range 0x0 0x10000000 !! 480 wired to the outside... But you could use the port under Linux.
641 default "0x01000000" <<
642 help <<
643 When KASLR is active, this provides <<
644 be applied to the kernel image. It s <<
645 amount of physical RAM available in <<
646 481
647 This is limited by the size of the l !! 482 config ATARI_MIDI
>> 483 tristate "Atari MIDI serial support"
>> 484 depends on ATARI
>> 485 help
>> 486 If you want to use your Atari's MIDI port in Linux, say Y.
648 487
649 source "kernel/livepatch/Kconfig" !! 488 To compile this driver as a module, choose M here.
650 489
651 config PARAVIRT !! 490 config ATARI_DSP56K
652 bool "Enable paravirtualization code" !! 491 tristate "Atari DSP56k support (EXPERIMENTAL)"
653 depends on AS_HAS_LVZ_EXTENSION !! 492 depends on ATARI && EXPERIMENTAL
654 help 493 help
655 This changes the kernel so it can mo !! 494 If you want to be able to use the DSP56001 in Falcons, say Y. This
656 under a hypervisor, potentially impr !! 495 driver is still experimental, and if you don't know what it is, or
657 over full virtualization. However, !! 496 if you don't have this processor, just say N.
658 the kernel is theoretically slower a <<
659 497
660 config PARAVIRT_TIME_ACCOUNTING !! 498 To compile this driver as a module, choose M here.
661 bool "Paravirtual steal time accountin !! 499
662 depends on PARAVIRT !! 500 config AMIGA_BUILTIN_SERIAL
>> 501 tristate "Amiga builtin serial support"
>> 502 depends on AMIGA
663 help 503 help
664 Select this option to enable fine gr !! 504 If you want to use your Amiga's built-in serial port in Linux,
665 accounting. Time spent executing oth !! 505 answer Y.
666 the current vCPU is discounted from <<
667 that, there can be a small performan <<
668 506
669 If in doubt, say N here. !! 507 To compile this driver as a module, choose M here.
670 508
671 endmenu !! 509 config MULTIFACE_III_TTY
>> 510 tristate "Multiface Card III serial support"
>> 511 depends on AMIGA
>> 512 help
>> 513 If you want to use a Multiface III card's serial port in Linux,
>> 514 answer Y.
672 515
673 config ARCH_SELECT_MEMORY_MODEL !! 516 To compile this driver as a module, choose M here.
674 def_bool y <<
675 517
676 config ARCH_FLATMEM_ENABLE !! 518 config GVPIOEXT
677 def_bool y !! 519 tristate "GVP IO-Extender support"
678 depends on !NUMA !! 520 depends on PARPORT=n && ZORRO
>> 521 help
>> 522 If you want to use a GVP IO-Extender serial card in Linux, say Y.
>> 523 Otherwise, say N.
679 524
680 config ARCH_SPARSEMEM_ENABLE !! 525 config GVPIOEXT_LP
681 def_bool y !! 526 tristate "GVP IO-Extender parallel printer support"
682 select SPARSEMEM_VMEMMAP_ENABLE !! 527 depends on GVPIOEXT
683 help 528 help
684 Say Y to support efficient handling !! 529 Say Y to enable driving a printer from the parallel port on your
685 for architectures which are either N !! 530 GVP IO-Extender card, N otherwise.
686 or have huge holes in the physical a <<
687 See <file:Documentation/mm/numa.rst> <<
688 531
689 config ARCH_MEMORY_PROBE !! 532 config GVPIOEXT_PLIP
690 def_bool y !! 533 tristate "GVP IO-Extender PLIP support"
691 depends on MEMORY_HOTPLUG !! 534 depends on GVPIOEXT
>> 535 help
>> 536 Say Y to enable doing IP over the parallel port on your GVP
>> 537 IO-Extender card, N otherwise.
692 538
693 config MMU !! 539 config MAC_SCC
>> 540 tristate "Macintosh serial support"
>> 541 depends on MAC
>> 542
>> 543 config MAC_HID
694 bool 544 bool
>> 545 depends on INPUT_ADBHID
695 default y 546 default y
696 547
697 config ARCH_MMAP_RND_BITS_MIN !! 548 config HPDCA
698 default 12 !! 549 tristate "HP DCA serial support"
>> 550 depends on DIO && SERIAL_8250
>> 551 help
>> 552 If you want to use the internal "DCA" serial ports on an HP300
>> 553 machine, say Y here.
699 554
700 config ARCH_MMAP_RND_BITS_MAX !! 555 config HPAPCI
701 default 18 !! 556 tristate "HP APCI serial support"
>> 557 depends on HP300 && SERIAL_8250 && EXPERIMENTAL
>> 558 help
>> 559 If you want to use the internal "APCI" serial ports on an HP400
>> 560 machine, say Y here.
702 561
703 config ARCH_SUPPORTS_UPROBES !! 562 config MVME147_SCC
704 def_bool y !! 563 bool "SCC support for MVME147 serial ports"
>> 564 depends on MVME147 && BROKEN
>> 565 help
>> 566 This is the driver for the serial ports on the Motorola MVME147
>> 567 boards. Everyone using one of these boards should say Y here.
705 568
706 config KASAN_SHADOW_OFFSET !! 569 config SERIAL167
707 hex !! 570 bool "CD2401 support for MVME166/7 serial ports"
708 default 0x0 !! 571 depends on MVME16x
709 depends on KASAN !! 572 help
>> 573 This is the driver for the serial ports on the Motorola MVME166,
>> 574 167, and 172 boards. Everyone using one of these boards should say
>> 575 Y here.
710 576
711 menu "Power management options" !! 577 config MVME162_SCC
>> 578 bool "SCC support for MVME162 serial ports"
>> 579 depends on MVME16x && BROKEN
>> 580 help
>> 581 This is the driver for the serial ports on the Motorola MVME162 and
>> 582 172 boards. Everyone using one of these boards should say Y here.
712 583
713 config ARCH_SUSPEND_POSSIBLE !! 584 config BVME6000_SCC
714 def_bool y !! 585 bool "SCC support for BVME6000 serial ports"
>> 586 depends on BVME6000 && BROKEN
>> 587 help
>> 588 This is the driver for the serial ports on the BVME4000 and BVME6000
>> 589 boards from BVM Ltd. Everyone using one of these boards should say
>> 590 Y here.
715 591
716 config ARCH_HIBERNATION_POSSIBLE !! 592 config DN_SERIAL
717 def_bool y !! 593 bool "Support for DN serial port (dummy)"
>> 594 depends on APOLLO
>> 595
>> 596 config SERIAL_CONSOLE
>> 597 bool "Support for serial port console"
>> 598 depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
>> 599 ---help---
>> 600 If you say Y here, it will be possible to use a serial port as the
>> 601 system console (the system console is the device which receives all
>> 602 kernel messages and warnings and which allows logins in single user
>> 603 mode). This could be useful if some terminal or printer is connected
>> 604 to that serial port.
718 605
719 source "kernel/power/Kconfig" !! 606 Even if you say Y here, the currently visible virtual console
720 source "drivers/acpi/Kconfig" !! 607 (/dev/tty0) will still be used as the system console by default, but
721 source "drivers/cpufreq/Kconfig" !! 608 you can alter that using a kernel command line option such as
>> 609 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 610 your boot loader (lilo or loadlin) about how to pass options to the
>> 611 kernel at boot time.)
>> 612
>> 613 If you don't have a VGA card installed and you say Y here, the
>> 614 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 615 system console.
>> 616
>> 617 If unsure, say N.
722 618
723 endmenu 619 endmenu
724 620
725 source "arch/loongarch/kvm/Kconfig" !! 621 source "fs/Kconfig"
>> 622
>> 623 source "arch/m68k/Kconfig.debug"
>> 624
>> 625 source "security/Kconfig"
>> 626
>> 627 source "crypto/Kconfig"
>> 628
>> 629 source "lib/Kconfig"
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