1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config MMU !! 2 config ALPHA
3 def_bool y !! 3 bool
4 !! 4 default y
5 config CPU_BIG_ENDIAN !! 5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 def_bool y !! 6 select ARCH_MIGHT_HAVE_PC_SERIO
7 !! 7 select ARCH_NO_PREEMPT
8 config LOCKDEP_SUPPORT !! 8 select ARCH_NO_SG_CHAIN
9 def_bool y <<
10 <<
11 config STACKTRACE_SUPPORT <<
12 def_bool y <<
13 <<
14 config ARCH_HAS_ILOG2_U32 <<
15 def_bool n <<
16 <<
17 config ARCH_HAS_ILOG2_U64 <<
18 def_bool n <<
19 <<
20 config ARCH_PROC_KCORE_TEXT <<
21 def_bool y <<
22 <<
23 config GENERIC_HWEIGHT <<
24 def_bool !HAVE_MARCH_Z196_FEATURES <<
25 <<
26 config GENERIC_BUG <<
27 def_bool y if BUG <<
28 <<
29 config GENERIC_BUG_RELATIVE_POINTERS <<
30 def_bool y <<
31 <<
32 config GENERIC_LOCKBREAK <<
33 def_bool y if PREEMPTION <<
34 <<
35 config PGSTE <<
36 def_bool y if KVM <<
37 <<
38 config AUDIT_ARCH <<
39 def_bool y <<
40 <<
41 config NO_IOPORT_MAP <<
42 def_bool y <<
43 <<
44 config PCI_QUIRKS <<
45 def_bool n <<
46 <<
47 config ARCH_SUPPORTS_UPROBES <<
48 def_bool y <<
49 <<
50 config KASAN_SHADOW_OFFSET <<
51 hex <<
52 depends on KASAN <<
53 default 0x1C000000000000 <<
54 <<
55 config S390 <<
56 def_bool y <<
57 # <<
58 # Note: keep this list sorted alphabet <<
59 # <<
60 imply IMA_SECURE_AND_OR_TRUSTED_BOOT <<
61 select ALTERNATE_USER_ADDRESS_SPACE <<
62 select ARCH_32BIT_USTAT_F_TINODE <<
63 select ARCH_BINFMT_ELF_STATE <<
64 select ARCH_CORRECT_STACKTRACE_ON_KRET <<
65 select ARCH_ENABLE_MEMORY_HOTPLUG if S <<
66 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
67 select ARCH_ENABLE_SPLIT_PMD_PTLOCK if <<
68 select ARCH_HAS_CURRENT_STACK_POINTER <<
69 select ARCH_HAS_DEBUG_VIRTUAL <<
70 select ARCH_HAS_DEBUG_VM_PGTABLE <<
71 select ARCH_HAS_DEBUG_WX <<
72 select ARCH_HAS_DEVMEM_IS_ALLOWED <<
73 select ARCH_HAS_DMA_OPS if PCI <<
74 select ARCH_HAS_ELF_RANDOMIZE <<
75 select ARCH_HAS_FORCE_DMA_UNENCRYPTED <<
76 select ARCH_HAS_FORTIFY_SOURCE <<
77 select ARCH_HAS_GCOV_PROFILE_ALL <<
78 select ARCH_HAS_GIGANTIC_PAGE <<
79 select ARCH_HAS_KCOV <<
80 select ARCH_HAS_MEMBARRIER_SYNC_CORE <<
81 select ARCH_HAS_MEM_ENCRYPT <<
82 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS <<
83 select ARCH_HAS_PTE_SPECIAL <<
84 select ARCH_HAS_SCALED_CPUTIME <<
85 select ARCH_HAS_SET_DIRECT_MAP <<
86 select ARCH_HAS_SET_MEMORY <<
87 select ARCH_HAS_STRICT_KERNEL_RWX <<
88 select ARCH_HAS_STRICT_MODULE_RWX <<
89 select ARCH_HAS_SYSCALL_WRAPPER <<
90 select ARCH_HAS_UBSAN <<
91 select ARCH_HAS_VDSO_DATA <<
92 select ARCH_HAVE_NMI_SAFE_CMPXCHG <<
93 select ARCH_INLINE_READ_LOCK <<
94 select ARCH_INLINE_READ_LOCK_BH <<
95 select ARCH_INLINE_READ_LOCK_IRQ <<
96 select ARCH_INLINE_READ_LOCK_IRQSAVE <<
97 select ARCH_INLINE_READ_TRYLOCK <<
98 select ARCH_INLINE_READ_UNLOCK <<
99 select ARCH_INLINE_READ_UNLOCK_BH <<
100 select ARCH_INLINE_READ_UNLOCK_IRQ <<
101 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
102 select ARCH_INLINE_SPIN_LOCK <<
103 select ARCH_INLINE_SPIN_LOCK_BH <<
104 select ARCH_INLINE_SPIN_LOCK_IRQ <<
105 select ARCH_INLINE_SPIN_LOCK_IRQSAVE <<
106 select ARCH_INLINE_SPIN_TRYLOCK <<
107 select ARCH_INLINE_SPIN_TRYLOCK_BH <<
108 select ARCH_INLINE_SPIN_UNLOCK <<
109 select ARCH_INLINE_SPIN_UNLOCK_BH <<
110 select ARCH_INLINE_SPIN_UNLOCK_IRQ <<
111 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
112 select ARCH_INLINE_WRITE_LOCK <<
113 select ARCH_INLINE_WRITE_LOCK_BH <<
114 select ARCH_INLINE_WRITE_LOCK_IRQ <<
115 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
116 select ARCH_INLINE_WRITE_TRYLOCK <<
117 select ARCH_INLINE_WRITE_UNLOCK <<
118 select ARCH_INLINE_WRITE_UNLOCK_BH <<
119 select ARCH_INLINE_WRITE_UNLOCK_IRQ <<
120 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
121 select ARCH_MHP_MEMMAP_ON_MEMORY_ENABL <<
122 select ARCH_STACKWALK <<
123 select ARCH_SUPPORTS_ATOMIC_RMW <<
124 select ARCH_SUPPORTS_DEBUG_PAGEALLOC <<
125 select ARCH_SUPPORTS_HUGETLBFS <<
126 select ARCH_SUPPORTS_INT128 if CC_HAS_ <<
127 select ARCH_SUPPORTS_NUMA_BALANCING <<
128 select ARCH_SUPPORTS_PER_VMA_LOCK <<
129 select ARCH_USE_BUILTIN_BSWAP <<
130 select ARCH_USE_CMPXCHG_LOCKREF 9 select ARCH_USE_CMPXCHG_LOCKREF
131 select ARCH_USE_SYM_ANNOTATIONS !! 10 select FORCE_PCI if !ALPHA_JENSEN
132 select ARCH_WANTS_NO_INSTR !! 11 select PCI_DOMAINS if PCI
133 select ARCH_WANT_DEFAULT_BPF_JIT !! 12 select PCI_SYSCALL if PCI
>> 13 select HAVE_AOUT
>> 14 select HAVE_IDE
>> 15 select HAVE_OPROFILE
>> 16 select HAVE_PCSPKR_PLATFORM
>> 17 select HAVE_PERF_EVENTS
>> 18 select NEED_DMA_MAP_STATE
>> 19 select NEED_SG_DMA_LENGTH
>> 20 select VIRT_TO_BUS
>> 21 select GENERIC_IRQ_PROBE
>> 22 select GENERIC_PCI_IOMAP if PCI
>> 23 select AUTO_IRQ_AFFINITY if SMP
>> 24 select GENERIC_IRQ_SHOW
134 select ARCH_WANT_IPC_PARSE_VERSION 25 select ARCH_WANT_IPC_PARSE_VERSION
135 select ARCH_WANT_KERNEL_PMD_MKWRITE !! 26 select ARCH_HAVE_NMI_SAFE_CMPXCHG
136 select ARCH_WANT_LD_ORPHAN_WARN !! 27 select AUDIT_ARCH
137 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM !! 28 select GENERIC_CLOCKEVENTS
138 select BUILDTIME_TABLE_SORT <<
139 select CLONE_BACKWARDS2 <<
140 select DCACHE_WORD_ACCESS if !KMSAN <<
141 select DYNAMIC_FTRACE if FUNCTION_TRAC <<
142 select FUNCTION_ALIGNMENT_8B if CC_IS_ <<
143 select FUNCTION_ALIGNMENT_16B if !CC_I <<
144 select GENERIC_ALLOCATOR <<
145 select GENERIC_CPU_DEVICES <<
146 select GENERIC_CPU_AUTOPROBE <<
147 select GENERIC_CPU_VULNERABILITIES 29 select GENERIC_CPU_VULNERABILITIES
148 select GENERIC_ENTRY <<
149 select GENERIC_GETTIMEOFDAY <<
150 select GENERIC_PTDUMP <<
151 select GENERIC_SMP_IDLE_THREAD 30 select GENERIC_SMP_IDLE_THREAD
152 select GENERIC_TIME_VSYSCALL !! 31 select GENERIC_STRNCPY_FROM_USER
153 select GENERIC_VDSO_TIME_NS !! 32 select GENERIC_STRNLEN_USER
154 select GENERIC_IOREMAP if PCI <<
155 select HAVE_ALIGNED_STRUCT_PAGE <<
156 select HAVE_ARCH_AUDITSYSCALL 33 select HAVE_ARCH_AUDITSYSCALL
157 select HAVE_ARCH_JUMP_LABEL <<
158 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
159 select HAVE_ARCH_KASAN <<
160 select HAVE_ARCH_KASAN_VMALLOC <<
161 select HAVE_ARCH_KCSAN <<
162 select HAVE_ARCH_KMSAN <<
163 select HAVE_ARCH_KFENCE <<
164 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS <<
165 select HAVE_ARCH_SECCOMP_FILTER <<
166 select HAVE_ARCH_SOFT_DIRTY <<
167 select HAVE_ARCH_STACKLEAK <<
168 select HAVE_ARCH_TRACEHOOK <<
169 select HAVE_ARCH_TRANSPARENT_HUGEPAGE <<
170 select HAVE_ARCH_VMAP_STACK <<
171 select HAVE_ASM_MODVERSIONS <<
172 select HAVE_CMPXCHG_DOUBLE <<
173 select HAVE_CMPXCHG_LOCAL <<
174 select HAVE_DEBUG_KMEMLEAK <<
175 select HAVE_DMA_CONTIGUOUS <<
176 select HAVE_DYNAMIC_FTRACE <<
177 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
178 select HAVE_DYNAMIC_FTRACE_WITH_DIRECT <<
179 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
180 select HAVE_EBPF_JIT if HAVE_MARCH_Z19 <<
181 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
182 select HAVE_GUP_FAST <<
183 select HAVE_FENTRY <<
184 select HAVE_FTRACE_MCOUNT_RECORD <<
185 select HAVE_FUNCTION_ARG_ACCESS_API <<
186 select HAVE_FUNCTION_ERROR_INJECTION <<
187 select HAVE_FUNCTION_GRAPH_RETVAL <<
188 select HAVE_FUNCTION_GRAPH_TRACER <<
189 select HAVE_FUNCTION_TRACER <<
190 select HAVE_GCC_PLUGINS <<
191 select HAVE_GENERIC_VDSO <<
192 select HAVE_IOREMAP_PROT if PCI <<
193 select HAVE_KERNEL_BZIP2 <<
194 select HAVE_KERNEL_GZIP <<
195 select HAVE_KERNEL_LZ4 <<
196 select HAVE_KERNEL_LZMA <<
197 select HAVE_KERNEL_LZO <<
198 select HAVE_KERNEL_UNCOMPRESSED <<
199 select HAVE_KERNEL_XZ <<
200 select HAVE_KERNEL_ZSTD <<
201 select HAVE_KPROBES <<
202 select HAVE_KPROBES_ON_FTRACE <<
203 select HAVE_KRETPROBES <<
204 select HAVE_LIVEPATCH <<
205 select HAVE_MEMBLOCK_PHYS_MAP <<
206 select HAVE_MOD_ARCH_SPECIFIC 34 select HAVE_MOD_ARCH_SPECIFIC
207 select HAVE_NMI <<
208 select HAVE_NOP_MCOUNT <<
209 select HAVE_PAGE_SIZE_4KB <<
210 select HAVE_PCI <<
211 select HAVE_PERF_EVENTS <<
212 select HAVE_PERF_REGS <<
213 select HAVE_PERF_USER_STACK_DUMP <<
214 select HAVE_REGS_AND_STACK_ACCESS_API <<
215 select HAVE_RELIABLE_STACKTRACE <<
216 select HAVE_RETHOOK <<
217 select HAVE_RSEQ <<
218 select HAVE_SAMPLE_FTRACE_DIRECT <<
219 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI <<
220 select HAVE_SETUP_PER_CPU_AREA <<
221 select HAVE_SOFTIRQ_ON_OWN_STACK <<
222 select HAVE_SYSCALL_TRACEPOINTS <<
223 select HAVE_VIRT_CPU_ACCOUNTING <<
224 select HAVE_VIRT_CPU_ACCOUNTING_IDLE <<
225 select IOMMU_HELPER if PCI <<
226 select IOMMU_SUPPORT if PCI <<
227 select MMU_GATHER_MERGE_VMAS <<
228 select MMU_GATHER_NO_GATHER <<
229 select MMU_GATHER_RCU_TABLE_FREE <<
230 select MODULES_USE_ELF_RELA 35 select MODULES_USE_ELF_RELA
231 select NEED_DMA_MAP_STATE if PCI !! 36 select ODD_RT_SIGACTION
232 select NEED_PER_CPU_EMBED_FIRST_CHUNK !! 37 select OLD_SIGSUSPEND
233 select NEED_SG_DMA_LENGTH if PCI !! 38 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
234 select OLD_SIGACTION !! 39 select MMU_GATHER_NO_RANGE
235 select OLD_SIGSUSPEND3 !! 40 help
236 select PCI_DOMAINS if PCI !! 41 The Alpha is a 64-bit general-purpose processor designed and
237 select PCI_MSI if PCI !! 42 marketed by the Digital Equipment Corporation of blessed memory,
238 select PCI_MSI_ARCH_FALLBACKS if PCI !! 43 now Hewlett-Packard. The Alpha Linux project has a home page at
239 select SPARSE_IRQ !! 44 <http://www.alphalinux.org/>.
240 select SWIOTLB <<
241 select SYSCTL_EXCEPTION_TRACE <<
242 select THREAD_INFO_IN_TASK <<
243 select TRACE_IRQFLAGS_SUPPORT <<
244 select TTY <<
245 select USER_STACKTRACE_SUPPORT <<
246 select VDSO_GETRANDOM <<
247 select VIRT_CPU_ACCOUNTING <<
248 select ZONE_DMA <<
249 # Note: keep the above list sorted alp <<
250 <<
251 config SCHED_OMIT_FRAME_POINTER <<
252 def_bool y <<
253 <<
254 config PGTABLE_LEVELS <<
255 int <<
256 default 5 <<
257 <<
258 source "kernel/livepatch/Kconfig" <<
259 45
260 config ARCH_SUPPORTS_KEXEC !! 46 config 64BIT
261 def_bool y 47 def_bool y
262 48
263 config ARCH_SUPPORTS_KEXEC_FILE !! 49 config MMU
264 def_bool y !! 50 bool
>> 51 default y
265 52
266 config ARCH_SUPPORTS_KEXEC_SIG !! 53 config ARCH_HAS_ILOG2_U32
267 def_bool MODULE_SIG_FORMAT !! 54 bool
>> 55 default n
268 56
269 config ARCH_SUPPORTS_KEXEC_PURGATORY !! 57 config ARCH_HAS_ILOG2_U64
270 def_bool y !! 58 bool
>> 59 default n
271 60
272 config ARCH_SUPPORTS_CRASH_DUMP !! 61 config GENERIC_CALIBRATE_DELAY
273 def_bool y !! 62 bool
274 help !! 63 default y
275 Refer to <file:Documentation/arch/s3 <<
276 This option also enables s390 zfcpdu <<
277 See also <file:Documentation/arch/s3 <<
278 <<
279 menu "Processor type and features" <<
280 <<
281 config HAVE_MARCH_Z10_FEATURES <<
282 def_bool n <<
283 <<
284 config HAVE_MARCH_Z196_FEATURES <<
285 def_bool n <<
286 select HAVE_MARCH_Z10_FEATURES <<
287 <<
288 config HAVE_MARCH_ZEC12_FEATURES <<
289 def_bool n <<
290 select HAVE_MARCH_Z196_FEATURES <<
291 <<
292 config HAVE_MARCH_Z13_FEATURES <<
293 def_bool n <<
294 select HAVE_MARCH_ZEC12_FEATURES <<
295 <<
296 config HAVE_MARCH_Z14_FEATURES <<
297 def_bool n <<
298 select HAVE_MARCH_Z13_FEATURES <<
299 <<
300 config HAVE_MARCH_Z15_FEATURES <<
301 def_bool n <<
302 select HAVE_MARCH_Z14_FEATURES <<
303 <<
304 config HAVE_MARCH_Z16_FEATURES <<
305 def_bool n <<
306 select HAVE_MARCH_Z15_FEATURES <<
307 64
308 choice !! 65 config ZONE_DMA
309 prompt "Processor type" !! 66 bool
310 default MARCH_Z196 !! 67 default y
311 68
312 config MARCH_Z10 !! 69 config GENERIC_ISA_DMA
313 bool "IBM System z10" !! 70 bool
314 select HAVE_MARCH_Z10_FEATURES !! 71 default y
315 depends on $(cc-option,-march=z10) <<
316 help <<
317 Select this to enable optimizations <<
318 series). This is the oldest machine <<
319 <<
320 config MARCH_Z196 <<
321 bool "IBM zEnterprise 114 and 196" <<
322 select HAVE_MARCH_Z196_FEATURES <<
323 depends on $(cc-option,-march=z196) <<
324 help <<
325 Select this to enable optimizations <<
326 (2818 and 2817 series). The kernel w <<
327 not work on older machines. <<
328 <<
329 config MARCH_ZEC12 <<
330 bool "IBM zBC12 and zEC12" <<
331 select HAVE_MARCH_ZEC12_FEATURES <<
332 depends on $(cc-option,-march=zEC12) <<
333 help <<
334 Select this to enable optimizations <<
335 2827 series). The kernel will be sli <<
336 older machines. <<
337 <<
338 config MARCH_Z13 <<
339 bool "IBM z13s and z13" <<
340 select HAVE_MARCH_Z13_FEATURES <<
341 depends on $(cc-option,-march=z13) <<
342 help <<
343 Select this to enable optimizations <<
344 2964 series). The kernel will be sli <<
345 older machines. <<
346 <<
347 config MARCH_Z14 <<
348 bool "IBM z14 ZR1 and z14" <<
349 select HAVE_MARCH_Z14_FEATURES <<
350 depends on $(cc-option,-march=z14) <<
351 help <<
352 Select this to enable optimizations <<
353 and 3906 series). The kernel will be <<
354 work on older machines. <<
355 <<
356 config MARCH_Z15 <<
357 bool "IBM z15" <<
358 select HAVE_MARCH_Z15_FEATURES <<
359 depends on $(cc-option,-march=z15) <<
360 help <<
361 Select this to enable optimizations <<
362 and 8561 series). The kernel will be <<
363 work on older machines. <<
364 <<
365 config MARCH_Z16 <<
366 bool "IBM z16" <<
367 select HAVE_MARCH_Z16_FEATURES <<
368 depends on $(cc-option,-march=z16) <<
369 help <<
370 Select this to enable optimizations <<
371 3932 series). <<
372 72
373 endchoice !! 73 config PGTABLE_LEVELS
>> 74 int
>> 75 default 3
374 76
375 config MARCH_Z10_TUNE !! 77 config AUDIT_ARCH
376 def_bool TUNE_Z10 || MARCH_Z10 && TUNE !! 78 bool
377 79
378 config MARCH_Z196_TUNE !! 80 menu "System setup"
379 def_bool TUNE_Z196 || MARCH_Z196 && TU <<
380 81
381 config MARCH_ZEC12_TUNE !! 82 choice
382 def_bool TUNE_ZEC12 || MARCH_ZEC12 && !! 83 prompt "Alpha system type"
>> 84 default ALPHA_GENERIC
>> 85 ---help---
>> 86 This is the system type of your hardware. A "generic" kernel will
>> 87 run on any supported Alpha system. However, if you configure a
>> 88 kernel for your specific system, it will be faster and smaller.
383 89
384 config MARCH_Z13_TUNE !! 90 To find out what type of Alpha system you have, you may want to
385 def_bool TUNE_Z13 || MARCH_Z13 && TUNE !! 91 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 92 <http://www.alphalinux.org/>. In summary:
386 93
387 config MARCH_Z14_TUNE !! 94 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
388 def_bool TUNE_Z14 || MARCH_Z14 && TUNE !! 95 Alpha-XL XL-233, XL-266
>> 96 AlphaBook1 Alpha laptop
>> 97 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 98 Cabriolet AlphaPC64, AlphaPCI64
>> 99 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 100 EB164 EB164 21164 evaluation board
>> 101 EB64+ EB64+ 21064 evaluation board
>> 102 EB66 EB66 21066 evaluation board
>> 103 EB66+ EB66+ 21066 evaluation board
>> 104 Jensen DECpc 150, DEC 2000 models 300, 500
>> 105 LX164 AlphaPC164-LX
>> 106 Lynx AS 2100A
>> 107 Miata Personal Workstation 433/500/600 a/au
>> 108 Marvel AlphaServer ES47 / ES80 / GS1280
>> 109 Mikasa AS 1000
>> 110 Noname AXPpci33, UDB (Multia)
>> 111 Noritake AS 1000A, AS 600A, AS 800
>> 112 PC164 AlphaPC164
>> 113 Rawhide AS 1200, AS 4000, AS 4100
>> 114 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 115 SX164 AlphaPC164-SX
>> 116 Sable AS 2000, AS 2100
>> 117 Shark DS 20L
>> 118 Takara Takara (OEM)
>> 119 Titan AlphaServer ES45 / DS25 / DS15
>> 120 Wildfire AlphaServer GS 40/80/160/320
389 121
390 config MARCH_Z15_TUNE !! 122 If you don't know what to do, choose "generic".
391 def_bool TUNE_Z15 || MARCH_Z15 && TUNE <<
392 123
393 config MARCH_Z16_TUNE !! 124 config ALPHA_GENERIC
394 def_bool TUNE_Z16 || MARCH_Z16 && TUNE !! 125 bool "Generic"
>> 126 depends on TTY
>> 127 select HAVE_EISA
>> 128 help
>> 129 A generic kernel will run on all supported Alpha hardware.
395 130
396 choice !! 131 config ALPHA_ALCOR
397 prompt "Tune code generation" !! 132 bool "Alcor/Alpha-XLT"
398 default TUNE_DEFAULT !! 133 select HAVE_EISA
399 help 134 help
400 Cause the compiler to tune (-mtune) !! 135 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
401 This will make the code run faster o !! 136 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
402 somewhat slower on other machines. !! 137 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
403 This option only changes how the com !! 138 controller (256-bit memory bus) and a PCI interface. It also does
404 selection of instructions itself, so !! 139 all the work required to support an external Bcache and to maintain
405 all other machines. !! 140 memory coherence when a PCI device DMAs into (or out of) memory.
406 <<
407 config TUNE_DEFAULT <<
408 bool "Default" <<
409 help <<
410 Tune the generated code for the targ <<
411 will be compiled. <<
412 <<
413 config TUNE_Z10 <<
414 bool "IBM System z10" <<
415 <<
416 config TUNE_Z196 <<
417 bool "IBM zEnterprise 114 and 196" <<
418 depends on $(cc-option,-mtune=z196) <<
419 <<
420 config TUNE_ZEC12 <<
421 bool "IBM zBC12 and zEC12" <<
422 depends on $(cc-option,-mtune=zEC12) <<
423 <<
424 config TUNE_Z13 <<
425 bool "IBM z13s and z13" <<
426 depends on $(cc-option,-mtune=z13) <<
427 <<
428 config TUNE_Z14 <<
429 bool "IBM z14 ZR1 and z14" <<
430 depends on $(cc-option,-mtune=z14) <<
431 <<
432 config TUNE_Z15 <<
433 bool "IBM z15" <<
434 depends on $(cc-option,-mtune=z15) <<
435 <<
436 config TUNE_Z16 <<
437 bool "IBM z16" <<
438 depends on $(cc-option,-mtune=z16) <<
439 141
440 endchoice !! 142 config ALPHA_XL
>> 143 bool "Alpha-XL"
>> 144 help
>> 145 XL-233 and XL-266-based Alpha systems.
441 146
442 config 64BIT !! 147 config ALPHA_BOOK1
443 def_bool y !! 148 bool "AlphaBook1"
>> 149 help
>> 150 Dec AlphaBook1/Burns Alpha-based laptops.
444 151
445 config COMMAND_LINE_SIZE !! 152 config ALPHA_AVANTI_CH
446 int "Maximum size of kernel command li !! 153 bool "Avanti"
447 default 4096 <<
448 range 896 1048576 <<
449 help <<
450 This allows you to specify the maxim <<
451 line. <<
452 <<
453 config COMPAT <<
454 def_bool n <<
455 prompt "Kernel support for 31 bit emul <<
456 select ARCH_WANT_OLD_COMPAT_IPC <<
457 select COMPAT_OLD_SIGACTION <<
458 select HAVE_UID16 <<
459 depends on MULTIUSER <<
460 depends on !CC_IS_CLANG && !LD_IS_LLD <<
461 help <<
462 Select this option if you want to en <<
463 handle system-calls from ELF binarie <<
464 (and some other stuff like libraries <<
465 executing 31 bit applications. <<
466 154
467 If unsure say N. !! 155 config ALPHA_CABRIOLET
>> 156 bool "Cabriolet"
>> 157 help
>> 158 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
>> 159 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 160 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 161 Bcache SIMMs. Requires power supply with 3.3V output.
468 162
469 config SMP !! 163 config ALPHA_DP264
470 def_bool y !! 164 bool "DP264"
>> 165 help
>> 166 Various 21264 systems with the tsunami core logic chipset.
>> 167 API Networks: 264DP, UP2000(+), CS20;
>> 168 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
471 169
472 config NR_CPUS !! 170 config ALPHA_EB164
473 int "Maximum number of CPUs (2-512)" !! 171 bool "EB164"
474 range 2 512 !! 172 help
475 default "64" !! 173 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
476 help !! 174 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
477 This allows you to specify the maxim !! 175 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
478 kernel will support. The maximum sup !! 176 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
479 minimum value which makes sense is 2 !! 177 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 178 motherboard. Requires power supply with 3.3V output.
480 179
481 This is purely to save memory - each !! 180 config ALPHA_EB64P_CH
482 approximately sixteen kilobytes to t !! 181 bool "EB64+"
483 182
484 config HOTPLUG_CPU !! 183 config ALPHA_EB66
485 def_bool y !! 184 bool "EB66"
>> 185 help
>> 186 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
>> 187 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 188 supply. The EB66 schematic was published as a marketing poster
>> 189 advertising the 21066 as "the first microprocessor in the world with
>> 190 embedded PCI".
486 191
487 config NUMA !! 192 config ALPHA_EB66P
488 bool "NUMA support" !! 193 bool "EB66+"
489 depends on SCHED_TOPOLOGY <<
490 default n <<
491 help 194 help
492 Enable NUMA support !! 195 Later variant of the EB66 board.
493 196
494 This option adds NUMA support to the !! 197 config ALPHA_EIGER
>> 198 bool "Eiger"
>> 199 help
>> 200 Apparently an obscure OEM single-board computer based on the
>> 201 Typhoon/Tsunami chipset family. Information on it is scanty.
495 202
496 config NODES_SHIFT !! 203 config ALPHA_JENSEN
497 int !! 204 bool "Jensen"
498 depends on NUMA !! 205 depends on BROKEN
499 default "1" !! 206 select HAVE_EISA
>> 207 help
>> 208 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 209 of the first-generation Alpha systems. A number of these systems
>> 210 seem to be available on the second- hand market. The Jensen is a
>> 211 floor-standing tower system which originally used a 150MHz 21064 It
>> 212 used programmable logic to interface a 486 EISA I/O bridge to the
>> 213 CPU.
500 214
501 config SCHED_SMT !! 215 config ALPHA_LX164
502 def_bool n !! 216 bool "LX164"
>> 217 help
>> 218 A technical overview of this board is available at
>> 219 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
503 220
504 config SCHED_MC !! 221 config ALPHA_LYNX
505 def_bool n !! 222 bool "Lynx"
>> 223 select HAVE_EISA
>> 224 help
>> 225 AlphaServer 2100A-based systems.
506 226
507 config SCHED_TOPOLOGY !! 227 config ALPHA_MARVEL
508 def_bool y !! 228 bool "Marvel"
509 prompt "Topology scheduler support" !! 229 help
510 select SCHED_SMT !! 230 AlphaServer ES47 / ES80 / GS1280 based on EV7.
511 select SCHED_MC <<
512 help <<
513 Topology scheduler support improves <<
514 making when dealing with machines th <<
515 multiple cores or multiple books. <<
516 231
517 config SCHED_TOPOLOGY_VERTICAL !! 232 config ALPHA_MIATA
518 def_bool y !! 233 bool "Miata"
519 bool "Use vertical CPU polarization by !! 234 select HAVE_EISA
520 depends on SCHED_TOPOLOGY <<
521 help 235 help
522 Use vertical CPU polarization by def !! 236 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
523 The default CPU polarization is hori !! 237 or 600au).
524 238
525 config HIPERDISPATCH_ON !! 239 config ALPHA_MIKASA
526 def_bool y !! 240 bool "Mikasa"
527 bool "Use hiperdispatch on vertical po !! 241 help
528 depends on SCHED_TOPOLOGY !! 242 AlphaServer 1000-based Alpha systems.
529 depends on PROC_SYSCTL <<
530 help <<
531 Hiperdispatch aims to improve the CP <<
532 making when using vertical polarizat <<
533 capacities dynamically. Set this opt <<
534 on vertical polarization by default. <<
535 by sysctl's s390.hiperdispatch attri <<
536 <<
537 source "kernel/Kconfig.hz" <<
538 <<
539 config CERT_STORE <<
540 bool "Get user certificates via DIAG32 <<
541 depends on KEYS <<
542 select CRYPTO_LIB_SHA256 <<
543 help <<
544 Enable this option if you want to ac <<
545 certificates via DIAG 0x320. <<
546 <<
547 These certificates will be made avai <<
548 'cert_store'. <<
549 <<
550 config KERNEL_NOBP <<
551 def_bool n <<
552 prompt "Enable modified branch predict <<
553 help <<
554 If this option is selected the kerne <<
555 branch prediction mode if the firmwa <<
556 The modified branch prediction mode <<
557 regard to speculative execution. <<
558 243
559 With the option enabled the kernel p !! 244 config ALPHA_NAUTILUS
560 can be used to run the kernel in the !! 245 bool "Nautilus"
>> 246 help
>> 247 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
561 248
562 With the option disabled the modifie !! 249 config ALPHA_NONAME_CH
563 enabled with the "nobp=1" kernel par !! 250 bool "Noname"
564 251
565 If unsure, say N. !! 252 config ALPHA_NORITAKE
>> 253 bool "Noritake"
>> 254 select HAVE_EISA
>> 255 help
>> 256 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
>> 257 systems.
566 258
567 config EXPOLINE !! 259 config ALPHA_PC164
568 def_bool n !! 260 bool "PC164"
569 depends on $(cc-option,-mindirect-bran <<
570 prompt "Avoid speculative indirect bra <<
571 help <<
572 Compile the kernel with the expoline <<
573 against kernel-to-user data leaks by <<
574 branches. <<
575 Requires a compiler with -mindirect- <<
576 protection. The kernel may run slowe <<
577 261
578 If unsure, say N. !! 262 config ALPHA_P2K
>> 263 bool "Platform2000"
579 264
580 config EXPOLINE_EXTERN !! 265 config ALPHA_RAWHIDE
581 def_bool EXPOLINE && CC_IS_GCC && GCC_ !! 266 bool "Rawhide"
582 $(success,$(srctree)/arch/s39 !! 267 select HAVE_EISA
583 help !! 268 help
584 Generate expolines as external funct !! 269 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
585 This option is required for some too !! 270 See HOWTO at
586 are enabled. The kernel is compiled !! 271 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
587 -mindirect-branch=thunk-extern, whic <<
588 272
589 choice !! 273 config ALPHA_RUFFIAN
590 prompt "Expoline default" !! 274 bool "Ruffian"
591 depends on EXPOLINE !! 275 help
592 default EXPOLINE_FULL !! 276 Samsung APC164UX. There is a page on known problems and workarounds
>> 277 at <http://www.alphalinux.org/faq/FAQ-11.html>.
593 278
594 config EXPOLINE_OFF !! 279 config ALPHA_RX164
595 bool "spectre_v2=off" !! 280 bool "RX164"
596 281
597 config EXPOLINE_AUTO !! 282 config ALPHA_SX164
598 bool "spectre_v2=auto" !! 283 bool "SX164"
599 284
600 config EXPOLINE_FULL !! 285 config ALPHA_SABLE
601 bool "spectre_v2=on" !! 286 bool "Sable"
>> 287 select HAVE_EISA
>> 288 help
>> 289 Digital AlphaServer 2000 and 2100-based systems.
602 290
603 endchoice !! 291 config ALPHA_SHARK
>> 292 bool "Shark"
604 293
605 config RELOCATABLE !! 294 config ALPHA_TAKARA
606 def_bool y !! 295 bool "Takara"
607 help 296 help
608 This builds a kernel image that reta !! 297 Alpha 11164-based OEM single-board computer.
609 so it can be loaded at an arbitrary <<
610 The relocations make the kernel imag <<
611 10%), but are discarded at runtime. <<
612 Note: this option exists only for do <<
613 not remove it. <<
614 <<
615 config RANDOMIZE_BASE <<
616 bool "Randomize the address of the ker <<
617 default y <<
618 help <<
619 In support of Kernel Address Space L <<
620 this randomizes the address at which <<
621 as a security feature that deters ex <<
622 knowledge of the location of kernel <<
623 <<
624 config RANDOMIZE_IDENTITY_BASE <<
625 bool "Randomize the address of the ide <<
626 depends on RANDOMIZE_BASE <<
627 default DEBUG_VM <<
628 help <<
629 The identity mapping base address is <<
630 Allow randomization of that base to <<
631 notion of physical and virtual addre <<
632 That does not have any impact on the <<
633 kernel image is loaded. <<
634 <<
635 If unsure, say N <<
636 <<
637 config KERNEL_IMAGE_BASE <<
638 hex "Kernel image base address" <<
639 range 0x100000 0x1FFFFFE0000000 if !KA <<
640 range 0x100000 0x1BFFFFE0000000 if KAS <<
641 default 0x3FFE0000000 if !KASAN <<
642 default 0x7FFFE0000000 if KASAN <<
643 help <<
644 This is the address at which the ker <<
645 Kernel Address Space Layout Randomiz <<
646 <<
647 In case the Protected virtualization <<
648 Ultravisor imposes a virtual address <<
649 option leads to the kernel image exc <<
650 this option is ignored and the image <<
651 <<
652 If the value of this option leads to <<
653 the virtual memory where other data <<
654 option is ignored and the image is l <<
655 298
656 endmenu !! 299 config ALPHA_TITAN
>> 300 bool "Titan"
>> 301 help
>> 302 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
657 303
658 menu "Memory setup" !! 304 config ALPHA_WILDFIRE
>> 305 bool "Wildfire"
>> 306 help
>> 307 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
659 308
660 config ARCH_SPARSEMEM_ENABLE !! 309 endchoice
661 def_bool y <<
662 select SPARSEMEM_VMEMMAP_ENABLE <<
663 select SPARSEMEM_VMEMMAP <<
664 310
665 config ARCH_SPARSEMEM_DEFAULT !! 311 # clear all implied options (don't want default values for those):
666 def_bool y !! 312 # Most of these machines have ISA slots; not exactly sure which don't,
>> 313 # and this doesn't activate hordes of code, so do it always.
>> 314 config ISA
>> 315 bool
>> 316 default y
>> 317 help
>> 318 Find out whether you have ISA slots on your motherboard. ISA is the
>> 319 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 320 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 321 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 322 newer boards don't support it. If you have ISA, say Y, otherwise N.
667 323
668 config MAX_PHYSMEM_BITS !! 324 config ISA_DMA_API
669 int "Maximum size of supported physica !! 325 bool
670 range 42 53 !! 326 default y
671 default "46" <<
672 help <<
673 This option specifies the maximum su <<
674 in bits. Supported is any size betwe <<
675 Increasing the number of bits also i <<
676 By default 46 bits (64TB) are suppor <<
677 327
678 config CHECK_STACK !! 328 config ALPHA_NONAME
679 def_bool y !! 329 bool
680 depends on !VMAP_STACK !! 330 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
681 prompt "Detect kernel stack overflow" !! 331 default y
682 help 332 help
683 This option enables the compiler opt !! 333 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
684 -mstack-size if they are available. !! 334 UDB). This design was produced by Digital's Technical OEM (TOEM)
685 it will emit additional code to each !! 335 group. It uses the 21066 processor running at 166MHz or 233MHz. It
686 an illegal operation if the kernel s !! 336 is a baby-AT size, and runs from a standard PC power supply. It has
687 !! 337 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
688 Say N if you are unsure. !! 338 2 versions, with either PS/2 or large DIN connectors for the
689 !! 339 keyboard.
690 config STACK_GUARD !! 340
691 int "Size of the guard area (128-1024) !! 341 config ALPHA_EV4
692 range 128 1024 !! 342 bool
693 depends on CHECK_STACK !! 343 depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
694 default "256" !! 344 default y if !ALPHA_LYNX
695 help !! 345
696 This allows you to specify the size !! 346 config ALPHA_LCA
697 end of the kernel stack. If the kern !! 347 bool
698 area on function entry an illegal op !! 348 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
699 needs to be a power of 2. Please kee !! 349 default y
700 interrupt frame is 184 bytes for 31 <<
701 The minimum size for the stack guard <<
702 512 for 64 bit. <<
703 <<
704 endmenu <<
705 350
706 menu "I/O subsystem" !! 351 config ALPHA_APECS
>> 352 bool
>> 353 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 354 default y
707 355
708 config QDIO !! 356 config ALPHA_EB64P
709 def_tristate y !! 357 bool
710 prompt "QDIO support" !! 358 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
>> 359 default y
711 help 360 help
712 This driver provides the Queued Dire !! 361 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
713 IBM System z. !! 362 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 363 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 364 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 365 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 366 Runs from standard PC power supply.
>> 367
>> 368 config ALPHA_EV5
>> 369 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 370 default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
>> 371
>> 372 config ALPHA_EV4
>> 373 bool
>> 374 default y if ALPHA_LYNX && !ALPHA_EV5
>> 375
>> 376 config ALPHA_CIA
>> 377 bool
>> 378 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
>> 379 default y
714 380
715 To compile this driver as a module, !! 381 config ALPHA_EV56
716 module will be called qdio. !! 382 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 383 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
717 384
718 If unsure, say Y. !! 385 config ALPHA_EV56
>> 386 prompt "EV56 CPU (speed >= 333MHz)?"
>> 387 depends on ALPHA_NORITAKE || ALPHA_PRIMO
719 388
720 if PCI !! 389 config ALPHA_EV56
>> 390 prompt "EV56 CPU (speed >= 400MHz)?"
>> 391 depends on ALPHA_RAWHIDE
721 392
722 config PCI_NR_FUNCTIONS !! 393 config ALPHA_PRIMO
723 int "Maximum number of PCI functions ( !! 394 bool "EV5 CPU daughtercard (model 5/xxx)?"
724 range 1 4096 !! 395 depends on ALPHA_NORITAKE || ALPHA_MIKASA
725 default "512" <<
726 help 396 help
727 This allows you to specify the maxim !! 397 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
728 this kernel will support. <<
729 398
730 endif # PCI !! 399 config ALPHA_GAMMA
>> 400 bool "EV5 CPU(s) (model 5/xxx)?"
>> 401 depends on ALPHA_SABLE
>> 402 help
>> 403 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
731 404
732 config HAS_IOMEM !! 405 config ALPHA_GAMMA
733 def_bool PCI !! 406 bool
>> 407 depends on ALPHA_LYNX
>> 408 default y
734 409
735 config CHSC_SCH !! 410 config ALPHA_T2
736 def_tristate m !! 411 bool
737 prompt "Support for CHSC subchannels" !! 412 depends on ALPHA_SABLE || ALPHA_LYNX
738 help !! 413 default y
739 This driver allows usage of CHSC sub <<
740 is usually present on LPAR only. <<
741 The driver creates a device /dev/chs <<
742 obtain I/O configuration information <<
743 to issue asynchronous chsc commands <<
744 You will usually only want to use th <<
745 LPAR designated for system managemen <<
746 414
747 To compile this driver as a module, !! 415 config ALPHA_PYXIS
748 module will be called chsc_sch. !! 416 bool
>> 417 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 418 default y
749 419
750 If unsure, say N. !! 420 config ALPHA_EV6
>> 421 bool
>> 422 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 423 default y
751 424
752 config SCM_BUS !! 425 config ALPHA_TSUNAMI
753 def_bool y !! 426 bool
754 prompt "SCM bus driver" !! 427 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
755 help !! 428 default y
756 Bus driver for Storage Class Memory. <<
757 429
758 config EADM_SCH !! 430 config ALPHA_EV67
759 def_tristate m !! 431 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
760 prompt "Support for EADM subchannels" !! 432 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
761 depends on SCM_BUS !! 433 help
762 help !! 434 Is this a machine based on the EV67 core? If in doubt, select N here
763 This driver allows usage of EADM sub !! 435 and the machine will be treated as an EV6.
764 as a communication vehicle for SCM i !! 436
>> 437 config ALPHA_MCPCIA
>> 438 bool
>> 439 depends on ALPHA_RAWHIDE
>> 440 default y
765 441
766 To compile this driver as a module, !! 442 config ALPHA_POLARIS
767 module will be called eadm_sch. !! 443 bool
>> 444 depends on ALPHA_RX164
>> 445 default y
768 446
769 config AP !! 447 config ALPHA_IRONGATE
770 def_tristate y !! 448 bool
771 prompt "Support for Adjunct Processors !! 449 depends on ALPHA_NAUTILUS
772 help !! 450 default y
773 This driver allows usage to Adjunct <<
774 the ap bus, cards and queues. Suppor <<
775 the CryptoExpress Cards (CEX). <<
776 451
777 To compile this driver as a module, !! 452 config GENERIC_HWEIGHT
778 module will be called ap. !! 453 bool
>> 454 default y if !ALPHA_EV67
779 455
780 If unsure, say Y (default). !! 456 config ALPHA_AVANTI
>> 457 bool
>> 458 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 459 default y
>> 460 help
>> 461 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
>> 462 Alphas. Info at
>> 463 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
>> 464
>> 465 config ALPHA_BROKEN_IRQ_MASK
>> 466 bool
>> 467 depends on ALPHA_GENERIC || ALPHA_PC164
>> 468 default y
781 469
782 config AP_DEBUG !! 470 config VGA_HOSE
783 def_bool n !! 471 bool
784 prompt "Enable debug features for Adju !! 472 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
785 depends on AP !! 473 default y
786 help 474 help
787 Say 'Y' here to enable some addition !! 475 Support VGA on an arbitrary hose; needed for several platforms
788 Processor (ap) devices. !! 476 which always have multiple hoses, and whose consoles support it.
789 477
790 There will be some more sysfs attrib <<
791 478
792 Do not enable on production level ke !! 479 config ALPHA_QEMU
>> 480 bool "Run under QEMU emulation"
>> 481 depends on !ALPHA_GENERIC
>> 482 ---help---
>> 483 Assume the presence of special features supported by QEMU PALcode
>> 484 that reduce the overhead of system emulation.
>> 485
>> 486 Generic kernels will auto-detect QEMU. But when building a
>> 487 system-specific kernel, the assumption is that we want to
>> 488 eliminate as many runtime tests as possible.
793 489
794 If unsure, say N. 490 If unsure, say N.
795 491
796 config VFIO_CCW <<
797 def_tristate n <<
798 prompt "Support for VFIO-CCW subchanne <<
799 depends on VFIO <<
800 select VFIO_MDEV <<
801 help <<
802 This driver allows usage of I/O subc <<
803 <<
804 To compile this driver as a module, <<
805 module will be called vfio_ccw. <<
806 <<
807 config VFIO_AP <<
808 def_tristate n <<
809 prompt "VFIO support for AP devices" <<
810 depends on KVM <<
811 depends on VFIO <<
812 depends on AP <<
813 select VFIO_MDEV <<
814 help <<
815 This driver grants access to Adjunct <<
816 via the VFIO mediated device interfa <<
817 492
818 To compile this driver as a module, !! 493 config ALPHA_SRM
819 will be called vfio_ap. !! 494 bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
>> 495 depends on TTY
>> 496 default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
>> 497 ---help---
>> 498 There are two different types of booting firmware on Alphas: SRM,
>> 499 which is command line driven, and ARC, which uses menus and arrow
>> 500 keys. Details about the Linux/Alpha booting process are contained in
>> 501 the Linux/Alpha FAQ, accessible on the WWW from
>> 502 <http://www.alphalinux.org/>.
>> 503
>> 504 The usual way to load Linux on an Alpha machine is to use MILO
>> 505 (a bootloader that lets you pass command line parameters to the
>> 506 kernel just like lilo does for the x86 architecture) which can be
>> 507 loaded either from ARC or can be installed directly as a permanent
>> 508 firmware replacement from floppy (which requires changing a certain
>> 509 jumper on the motherboard). If you want to do either of these, say N
>> 510 here. If MILO doesn't work on your system (true for Jensen
>> 511 motherboards), you can bypass it altogether and boot Linux directly
>> 512 from an SRM console; say Y here in order to do that. Note that you
>> 513 won't be able to boot from an IDE disk using SRM.
820 514
821 endmenu !! 515 If unsure, say N.
822 516
823 config CCW !! 517 config ARCH_MAY_HAVE_PC_FDC
824 def_bool y 518 def_bool y
825 519
826 config HAVE_PNETID !! 520 config SMP
827 tristate !! 521 bool "Symmetric multi-processing support"
828 default (SMC || CCWGROUP) !! 522 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
829 !! 523 ---help---
830 menu "Virtualization" !! 524 This enables support for systems with more than one CPU. If you have
>> 525 a system with only one CPU, say N. If you have a system with more
>> 526 than one CPU, say Y.
>> 527
>> 528 If you say N here, the kernel will run on uni- and multiprocessor
>> 529 machines, but will use only one CPU of a multiprocessor machine. If
>> 530 you say Y here, the kernel will run on many, but not all,
>> 531 uniprocessor machines. On a uniprocessor machine, the kernel
>> 532 will run faster if you say N here.
831 533
832 config PFAULT !! 534 See also the SMP-HOWTO available at
833 def_bool y !! 535 <http://www.tldp.org/docs.html#howto>.
834 prompt "Pseudo page fault support" <<
835 help <<
836 Select this option, if you want to u <<
837 handling under VM. If running native <<
838 has no effect. If your VM does not s <<
839 pseudo page fault handling will be u <<
840 Note that VM 4.2 supports PFAULT but <<
841 implementation that causes some prob <<
842 Everybody who wants to run Linux und <<
843 this option. <<
844 <<
845 config CMM <<
846 def_tristate n <<
847 prompt "Cooperative memory management" <<
848 help <<
849 Select this option, if you want to e <<
850 to reduce the memory size of the sys <<
851 by allocating pages of memory and pu <<
852 makes sense for a system running und <<
853 will be reused by VM for other guest <<
854 allows an external monitor to balanc <<
855 Everybody who wants to run Linux und <<
856 option. <<
857 536
858 config CMM_IUCV !! 537 If you don't know what to do here, say N.
859 def_bool y <<
860 prompt "IUCV special message interface <<
861 depends on CMM && (SMSGIUCV=y || CMM=S <<
862 help <<
863 Select this option to enable the spe <<
864 the cooperative memory management. <<
865 538
866 config APPLDATA_BASE !! 539 config NR_CPUS
867 def_bool n !! 540 int "Maximum number of CPUs (2-32)"
868 prompt "Linux - VM Monitor Stream, bas !! 541 range 2 32
869 depends on PROC_SYSCTL !! 542 depends on SMP
870 help !! 543 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
871 This provides a kernel interface for !! 544 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
872 monitor records. The monitor records !! 545 help
873 intervals, once the timer is started !! 546 MARVEL support can handle a maximum of 32 CPUs, all the others
874 Writing 1 or 0 to /proc/appldata/tim !! 547 with working support have a maximum of 4 CPUs.
875 i.e. enables or disables monitoring !! 548
876 A custom interval value (in seconds) !! 549 config ARCH_DISCONTIGMEM_ENABLE
877 /proc/appldata/interval. !! 550 bool "Discontiguous Memory Support"
878 !! 551 help
879 Defaults are 60 seconds interval and !! 552 Say Y to support efficient handling of discontiguous physical memory,
880 The /proc entries can also be read f !! 553 for architectures which are either NUMA (Non-Uniform Memory Access)
881 !! 554 or have huge holes in the physical address space for other reasons.
882 config APPLDATA_MEM !! 555 See <file:Documentation/vm/numa.rst> for more.
883 def_tristate m <<
884 prompt "Monitor memory management stat <<
885 depends on APPLDATA_BASE && VM_EVENT_C <<
886 help <<
887 This provides memory management rela <<
888 Stream, like paging/swapping rate, m <<
889 Writing 1 or 0 to /proc/appldata/mem <<
890 APPLDATA monitor record, i.e. enable <<
891 on the z/VM side. <<
892 <<
893 Default is disabled. <<
894 The /proc entry can also be read fro <<
895 <<
896 This can also be compiled as a modul <<
897 appldata_mem.o. <<
898 <<
899 config APPLDATA_OS <<
900 def_tristate m <<
901 prompt "Monitor OS statistics" <<
902 depends on APPLDATA_BASE <<
903 help <<
904 This provides OS related data to the <<
905 CPU utilisation, etc. <<
906 Writing 1 or 0 to /proc/appldata/os <<
907 APPLDATA monitor record, i.e. enable <<
908 on the z/VM side. <<
909 <<
910 Default is disabled. <<
911 This can also be compiled as a modul <<
912 appldata_os.o. <<
913 <<
914 config APPLDATA_NET_SUM <<
915 def_tristate m <<
916 prompt "Monitor overall network statis <<
917 depends on APPLDATA_BASE && NET <<
918 help <<
919 This provides network related data t <<
920 currently there is only a total sum <<
921 per-interface data. <<
922 Writing 1 or 0 to /proc/appldata/net <<
923 APPLDATA monitor record, i.e. enable <<
924 on the z/VM side. <<
925 <<
926 Default is disabled. <<
927 This can also be compiled as a modul <<
928 appldata_net_sum.o. <<
929 556
930 config S390_HYPFS !! 557 config NUMA
931 def_bool y !! 558 bool "NUMA Support (EXPERIMENTAL)"
932 prompt "s390 hypervisor information" !! 559 depends on DISCONTIGMEM && BROKEN
933 help 560 help
934 This provides several binary files a !! 561 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
935 provide accounting information in an !! 562 Access). This option is for configuring high-end multiprocessor
>> 563 server machines. If in doubt, say N.
>> 564
>> 565 config ALPHA_WTINT
>> 566 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 567 default y if ALPHA_QEMU
>> 568 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 569 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 570 default y if SMP
>> 571 ---help---
>> 572 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 573 to sleep until the next interrupt. This may reduce the power
>> 574 consumed, and the heat produced by the computer. However, it has
>> 575 the side effect of making the cycle counter unreliable as a timing
>> 576 device across the sleep.
936 577
937 config S390_HYPFS_FS !! 578 For emulation under QEMU, definitely say Y here, as we have other
938 def_bool n !! 579 mechanisms for measuring time than the cycle counter.
939 prompt "s390 hypervisor file system su <<
940 select SYS_HYPERVISOR <<
941 depends on S390_HYPFS <<
942 help <<
943 This is a virtual file system intend <<
944 information in an s390 hypervisor en <<
945 is deprecated and should not be used <<
946 580
947 Say N if you are unsure. !! 581 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
>> 582 MILO, sleep mode is not supported so you might as well say N here.
948 583
949 source "arch/s390/kvm/Kconfig" !! 584 For SMP systems we cannot use the cycle counter for timing anyway,
>> 585 so you might as well say Y here.
950 586
951 config S390_GUEST !! 587 If unsure, say N.
952 def_bool y <<
953 prompt "s390 support for virtio device <<
954 select TTY <<
955 select VIRTUALIZATION <<
956 select VIRTIO <<
957 help <<
958 Enabling this option adds support fo <<
959 drivers on s390. <<
960 588
961 Select this option if you want to ru !! 589 config NODES_SHIFT
962 the KVM hypervisor. !! 590 int
>> 591 default "7"
>> 592 depends on NEED_MULTIPLE_NODES
963 593
964 endmenu !! 594 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
>> 595 config ALPHA_LARGE_VMALLOC
>> 596 bool
>> 597 ---help---
>> 598 Process creation and other aspects of virtual memory management can
>> 599 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 600 allocations. This equates to about 8GB.
>> 601
>> 602 Under normal circumstances, this is so far and above what is needed
>> 603 as to be laughable. However, there are certain applications (such
>> 604 as benchmark-grade in-kernel web serving) that can make use of as
>> 605 much vmalloc space as is available.
>> 606
>> 607 Say N unless you know you need gobs and gobs of vmalloc space.
>> 608
>> 609 config VERBOSE_MCHECK
>> 610 bool "Verbose Machine Checks"
>> 611
>> 612 config VERBOSE_MCHECK_ON
>> 613 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 614 depends on VERBOSE_MCHECK
>> 615 default 1
>> 616 ---help---
>> 617 This option allows the default printing mode to be set, and then
>> 618 possibly overridden by a boot command argument.
>> 619
>> 620 For example, if one wanted the option of printing verbose
>> 621 machine checks, but wanted the default to be as if verbose
>> 622 machine check printing was turned off, then one would choose
>> 623 the printing mode to be 0. Then, upon reboot, one could add
>> 624 the boot command line "verbose_mcheck=1" to get the normal
>> 625 verbose machine check printing, or "verbose_mcheck=2" to get
>> 626 the maximum information available.
965 627
966 config S390_MODULES_SANITY_TEST_HELPERS !! 628 Take the default (1) unless you want more control or more info.
967 def_bool n <<
968 629
969 menu "Selftests" !! 630 choice
>> 631 prompt "Timer interrupt frequency (HZ)?"
>> 632 default HZ_128 if ALPHA_QEMU
>> 633 default HZ_1200 if ALPHA_RAWHIDE
>> 634 default HZ_1024
>> 635 ---help---
>> 636 The frequency at which timer interrupts occur. A high frequency
>> 637 minimizes latency, whereas a low frequency minimizes overhead of
>> 638 process accounting. The later effect is especially significant
>> 639 when being run under QEMU.
>> 640
>> 641 Note that some Alpha hardware cannot change the interrupt frequency
>> 642 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 643
>> 644 config HZ_32
>> 645 bool "32 Hz"
>> 646 config HZ_64
>> 647 bool "64 Hz"
>> 648 config HZ_128
>> 649 bool "128 Hz"
>> 650 config HZ_256
>> 651 bool "256 Hz"
>> 652 config HZ_1024
>> 653 bool "1024 Hz"
>> 654 config HZ_1200
>> 655 bool "1200 Hz"
>> 656 endchoice
>> 657
>> 658 config HZ
>> 659 int
>> 660 default 32 if HZ_32
>> 661 default 64 if HZ_64
>> 662 default 128 if HZ_128
>> 663 default 256 if HZ_256
>> 664 default 1200 if HZ_1200
>> 665 default 1024
>> 666
>> 667 config SRM_ENV
>> 668 tristate "SRM environment through procfs"
>> 669 depends on PROC_FS
>> 670 ---help---
>> 671 If you enable this option, a subdirectory inside /proc called
>> 672 /proc/srm_environment will give you access to the all important
>> 673 SRM environment variables (those which have a name) and also
>> 674 to all others (by their internal number).
>> 675
>> 676 SRM is something like a BIOS for Alpha machines. There are some
>> 677 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 678 support (hey, that's not SRM!).
>> 679
>> 680 Despite the fact that this driver doesn't work on all Alphas (but
>> 681 only on those which have SRM as their firmware), it's save to
>> 682 build it even if your particular machine doesn't know about SRM
>> 683 (or if you intend to compile a generic kernel). It will simply
>> 684 not create those subdirectory in /proc (and give you some warning,
>> 685 of course).
970 686
971 config S390_UNWIND_SELFTEST !! 687 This driver is also available as a module and will be called
972 def_tristate n !! 688 srm_env then.
973 depends on KUNIT <<
974 default KUNIT_ALL_TESTS <<
975 prompt "Test unwind functions" <<
976 help <<
977 This option enables s390 specific st <<
978 module. This option is not useful fo <<
979 kernels, but only for kernel develop <<
980 <<
981 Say N if you are unsure. <<
982 <<
983 config S390_KPROBES_SANITY_TEST <<
984 def_tristate n <<
985 prompt "Enable s390 specific kprobes t <<
986 depends on KPROBES <<
987 depends on KUNIT <<
988 help <<
989 This option enables an s390 specific <<
990 is not useful for distributions or g <<
991 developers working on architecture c <<
992 <<
993 Say N if you are unsure. <<
994 <<
995 config S390_MODULES_SANITY_TEST <<
996 def_tristate n <<
997 depends on KUNIT <<
998 default KUNIT_ALL_TESTS <<
999 prompt "Enable s390 specific modules t <<
1000 select S390_MODULES_SANITY_TEST_HELPE <<
1001 help <<
1002 This option enables an s390 specifi <<
1003 not useful for distributions or gen <<
1004 kernel developers working on archit <<
1005 689
1006 Say N if you are unsure. <<
1007 endmenu 690 endmenu
>> 691
>> 692 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 693 # but we also need it if VGA_HOSE is set
>> 694 config DUMMY_CONSOLE
>> 695 bool
>> 696 depends on VGA_HOSE
>> 697 default y
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