1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 config LOONGARCH !! 2 config ALPHA
3 bool 3 bool
4 default y 4 default y
5 select ACPI <<
6 select ACPI_GENERIC_GSI if ACPI <<
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 5 select ARCH_MIGHT_HAVE_PC_PARPORT
59 select ARCH_MIGHT_HAVE_PC_SERIO 6 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 7 select ARCH_USE_CMPXCHG_LOCKREF
71 select ARCH_USE_QUEUED_RWLOCKS !! 8 select HAVE_AOUT
72 select ARCH_USE_QUEUED_SPINLOCKS !! 9 select HAVE_IDE
73 select ARCH_WANT_DEFAULT_BPF_JIT !! 10 select HAVE_OPROFILE
74 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ !! 11 select HAVE_PCSPKR_PLATFORM
75 select ARCH_WANT_LD_ORPHAN_WARN !! 12 select HAVE_PERF_EVENTS
76 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM !! 13 select VIRT_TO_BUS
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 14 select GENERIC_IRQ_PROBE
>> 15 select AUTO_IRQ_AFFINITY if SMP
94 select GENERIC_IRQ_SHOW 16 select GENERIC_IRQ_SHOW
95 select GENERIC_LIB_ASHLDI3 !! 17 select ARCH_WANT_IPC_PARSE_VERSION
96 select GENERIC_LIB_ASHRDI3 !! 18 select ARCH_HAVE_NMI_SAFE_CMPXCHG
97 select GENERIC_LIB_CMPDI2 !! 19 select AUDIT_ARCH
98 select GENERIC_LIB_LSHRDI3 !! 20 select GENERIC_CLOCKEVENTS
99 select GENERIC_LIB_UCMPDI2 !! 21 select GENERIC_CPU_VULNERABILITIES
100 select GENERIC_LIB_DEVMEM_IS_ALLOWED <<
101 select GENERIC_PCI_IOMAP <<
102 select GENERIC_SCHED_CLOCK <<
103 select GENERIC_SMP_IDLE_THREAD 22 select GENERIC_SMP_IDLE_THREAD
104 select GENERIC_TIME_VSYSCALL !! 23 select GENERIC_STRNCPY_FROM_USER
105 select GENERIC_VDSO_TIME_NS !! 24 select GENERIC_STRNLEN_USER
106 select GPIOLIB <<
107 select HAS_IOPORT <<
108 select HAVE_ARCH_AUDITSYSCALL 25 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 26 select HAVE_MOD_ARCH_SPECIFIC
152 select HAVE_NMI !! 27 select MODULES_USE_ELF_RELA
153 select HAVE_OBJTOOL if AS_HAS_EXPLICIT !! 28 select ODD_RT_SIGACTION
154 select HAVE_PCI !! 29 select OLD_SIGSUSPEND
155 select HAVE_PERF_EVENTS !! 30 select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
156 select HAVE_PERF_REGS !! 31 help
157 select HAVE_PERF_USER_STACK_DUMP !! 32 The Alpha is a 64-bit general-purpose processor designed and
158 select HAVE_PREEMPT_DYNAMIC_KEY !! 33 marketed by the Digital Equipment Corporation of blessed memory,
159 select HAVE_REGS_AND_STACK_ACCESS_API !! 34 now Hewlett-Packard. The Alpha Linux project has a home page at
160 select HAVE_RELIABLE_STACKTRACE if UNW !! 35 <http://www.alphalinux.org/>.
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 <<
200 config 32BIT <<
201 bool <<
202 36
203 config 64BIT 37 config 64BIT
204 def_bool y 38 def_bool y
205 39
206 config GENERIC_BUG !! 40 config MMU
207 def_bool y !! 41 bool
208 depends on BUG !! 42 default y
209 <<
210 config GENERIC_BUG_RELATIVE_POINTERS <<
211 def_bool y <<
212 depends on GENERIC_BUG <<
213 43
214 config GENERIC_CALIBRATE_DELAY !! 44 config RWSEM_GENERIC_SPINLOCK
215 def_bool y !! 45 bool
216 46
217 config GENERIC_CSUM !! 47 config RWSEM_XCHGADD_ALGORITHM
218 def_bool y !! 48 bool
>> 49 default y
219 50
220 config GENERIC_HWEIGHT !! 51 config ARCH_HAS_ILOG2_U32
221 def_bool y !! 52 bool
>> 53 default n
222 54
223 config L1_CACHE_SHIFT !! 55 config ARCH_HAS_ILOG2_U64
224 int !! 56 bool
225 default "6" !! 57 default n
226 58
227 config LOCKDEP_SUPPORT !! 59 config GENERIC_CALIBRATE_DELAY
228 bool 60 bool
229 default y 61 default y
230 62
231 config STACKTRACE_SUPPORT !! 63 config ZONE_DMA
232 bool 64 bool
233 default y 65 default y
234 66
235 # MACH_LOONGSON32 and MACH_LOONGSON64 are deli !! 67 config ARCH_DMA_ADDR_T_64BIT
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 68 def_bool y
246 69
247 config PGTABLE_2LEVEL !! 70 config NEED_DMA_MAP_STATE
248 bool !! 71 def_bool y
249 72
250 config PGTABLE_3LEVEL !! 73 config NEED_SG_DMA_LENGTH
251 bool !! 74 def_bool y
252 75
253 config PGTABLE_4LEVEL !! 76 config GENERIC_ISA_DMA
254 bool 77 bool
>> 78 default y
255 79
256 config PGTABLE_LEVELS 80 config PGTABLE_LEVELS
257 int 81 int
258 default 2 if PGTABLE_2LEVEL !! 82 default 3
259 default 3 if PGTABLE_3LEVEL <<
260 default 4 if PGTABLE_4LEVEL <<
261 83
262 config SCHED_OMIT_FRAME_POINTER !! 84 source "init/Kconfig"
263 bool !! 85 source "kernel/Kconfig.freezer"
264 default y <<
265 86
266 config AS_HAS_EXPLICIT_RELOCS !! 87 config AUDIT_ARCH
267 def_bool $(as-instr,x:pcalau12i \$t0$( !! 88 bool
268 89
269 config AS_HAS_FCSR_CLASS !! 90 menu "System setup"
270 def_bool $(as-instr,movfcsr2gr \$t0$(c <<
271 91
272 config AS_HAS_THIN_ADD_SUB !! 92 choice
273 def_bool $(cc-option,-Wa$(comma)-mthin !! 93 prompt "Alpha system type"
>> 94 default ALPHA_GENERIC
>> 95 ---help---
>> 96 This is the system type of your hardware. A "generic" kernel will
>> 97 run on any supported Alpha system. However, if you configure a
>> 98 kernel for your specific system, it will be faster and smaller.
274 99
275 config AS_HAS_LSX_EXTENSION !! 100 To find out what type of Alpha system you have, you may want to
276 def_bool $(as-instr,vld \$vr0$(comma)\ !! 101 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 102 <http://www.alphalinux.org/>. In summary:
277 103
278 config AS_HAS_LASX_EXTENSION !! 104 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
279 def_bool $(as-instr,xvld \$xr0$(comma) !! 105 Alpha-XL XL-233, XL-266
>> 106 AlphaBook1 Alpha laptop
>> 107 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 108 Cabriolet AlphaPC64, AlphaPCI64
>> 109 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 110 EB164 EB164 21164 evaluation board
>> 111 EB64+ EB64+ 21064 evaluation board
>> 112 EB66 EB66 21066 evaluation board
>> 113 EB66+ EB66+ 21066 evaluation board
>> 114 Jensen DECpc 150, DEC 2000 models 300, 500
>> 115 LX164 AlphaPC164-LX
>> 116 Lynx AS 2100A
>> 117 Miata Personal Workstation 433/500/600 a/au
>> 118 Marvel AlphaServer ES47 / ES80 / GS1280
>> 119 Mikasa AS 1000
>> 120 Noname AXPpci33, UDB (Multia)
>> 121 Noritake AS 1000A, AS 600A, AS 800
>> 122 PC164 AlphaPC164
>> 123 Rawhide AS 1200, AS 4000, AS 4100
>> 124 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 125 SX164 AlphaPC164-SX
>> 126 Sable AS 2000, AS 2100
>> 127 Shark DS 20L
>> 128 Takara Takara (OEM)
>> 129 Titan AlphaServer ES45 / DS25 / DS15
>> 130 Wildfire AlphaServer GS 40/80/160/320
280 131
281 config AS_HAS_LBT_EXTENSION !! 132 If you don't know what to do, choose "generic".
282 def_bool $(as-instr,movscr2gr \$a0$(co <<
283 133
284 config AS_HAS_LVZ_EXTENSION !! 134 config ALPHA_GENERIC
285 def_bool $(as-instr,hvcl 0) !! 135 bool "Generic"
>> 136 depends on TTY
>> 137 help
>> 138 A generic kernel will run on all supported Alpha hardware.
286 139
287 menu "Kernel type and options" !! 140 config ALPHA_ALCOR
>> 141 bool "Alcor/Alpha-XLT"
>> 142 help
>> 143 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 144 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 145 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 146 controller (256-bit memory bus) and a PCI interface. It also does
>> 147 all the work required to support an external Bcache and to maintain
>> 148 memory coherence when a PCI device DMAs into (or out of) memory.
288 149
289 source "kernel/Kconfig.hz" !! 150 config ALPHA_XL
>> 151 bool "Alpha-XL"
>> 152 help
>> 153 XL-233 and XL-266-based Alpha systems.
290 154
291 choice !! 155 config ALPHA_BOOK1
292 prompt "Page Table Layout" !! 156 bool "AlphaBook1"
293 default 16KB_2LEVEL if 32BIT <<
294 default 16KB_3LEVEL if 64BIT <<
295 help <<
296 Allows choosing the page table layou <<
297 of page size and page table levels. <<
298 address space are determined by the <<
299 <<
300 config 4KB_3LEVEL <<
301 bool "4KB with 3 levels" <<
302 select HAVE_PAGE_SIZE_4KB <<
303 select PGTABLE_3LEVEL <<
304 help <<
305 This option selects 4KB page size wi <<
306 support a maximum of 39 bits of appl <<
307 <<
308 config 4KB_4LEVEL <<
309 bool "4KB with 4 levels" <<
310 select HAVE_PAGE_SIZE_4KB <<
311 select PGTABLE_4LEVEL <<
312 help <<
313 This option selects 4KB page size wi <<
314 support a maximum of 48 bits of appl <<
315 <<
316 config 16KB_2LEVEL <<
317 bool "16KB with 2 levels" <<
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 <<
324 config 16KB_3LEVEL <<
325 bool "16KB with 3 levels" <<
326 select HAVE_PAGE_SIZE_16KB <<
327 select PGTABLE_3LEVEL <<
328 help <<
329 This option selects 16KB page size w <<
330 support a maximum of 47 bits of appl <<
331 <<
332 config 64KB_2LEVEL <<
333 bool "64KB with 2 levels" <<
334 select HAVE_PAGE_SIZE_64KB <<
335 select PGTABLE_2LEVEL <<
336 help <<
337 This option selects 64KB page size w <<
338 support a maximum of 42 bits of appl <<
339 <<
340 config 64KB_3LEVEL <<
341 bool "64KB with 3 levels" <<
342 select HAVE_PAGE_SIZE_64KB <<
343 select PGTABLE_3LEVEL <<
344 help 157 help
345 This option selects 64KB page size w !! 158 Dec AlphaBook1/Burns Alpha-based laptops.
346 support a maximum of 55 bits of appl <<
347 159
348 endchoice !! 160 config ALPHA_AVANTI_CH
>> 161 bool "Avanti"
349 162
350 config CMDLINE !! 163 config ALPHA_CABRIOLET
351 string "Built-in kernel command line" !! 164 bool "Cabriolet"
352 help 165 help
353 For most platforms, the arguments fo !! 166 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
354 are provided at run-time, during boo !! 167 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
355 where either no arguments are being !! 168 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
356 arguments are insufficient or even i !! 169 Bcache SIMMs. Requires power supply with 3.3V output.
357 170
358 When that occurs, it is possible to !! 171 config ALPHA_DP264
359 line here and choose how the kernel !! 172 bool "DP264"
360 <<
361 choice <<
362 prompt "Kernel command line type" <<
363 default CMDLINE_BOOTLOADER <<
364 help 173 help
365 Choose how the kernel will handle th !! 174 Various 21264 systems with the tsunami core logic chipset.
366 line. !! 175 API Networks: 264DP, UP2000(+), CS20;
>> 176 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
367 177
368 config CMDLINE_BOOTLOADER !! 178 config ALPHA_EB164
369 bool "Use bootloader kernel arguments !! 179 bool "EB164"
370 help 180 help
371 Prefer the command-line passed by th !! 181 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
372 Use the built-in command line as fal !! 182 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
373 during boot. This is the default beh !! 183 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
374 !! 184 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
375 config CMDLINE_EXTEND !! 185 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
376 bool "Use built-in to extend bootloade !! 186 motherboard. Requires power supply with 3.3V output.
377 help <<
378 The command-line arguments provided <<
379 appended to the built-in command lin <<
380 cases where the provided arguments a <<
381 you don't want to or cannot modify t <<
382 <<
383 config CMDLINE_FORCE <<
384 bool "Always use the built-in kernel c <<
385 help <<
386 Always use the built-in command line <<
387 boot. This is useful in case you nee <<
388 command line on systems where you do <<
389 over it. <<
390 187
391 endchoice !! 188 config ALPHA_EB64P_CH
>> 189 bool "EB64+"
392 190
393 config BUILTIN_DTB !! 191 config ALPHA_EB66
394 bool "Enable built-in dtb in kernel" !! 192 bool "EB66"
395 depends on OF <<
396 help 193 help
397 Some existing systems do not provide !! 194 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
398 the kernel at boot time. Let's provi !! 195 identical to EB64+. Baby PC-AT size. Runs from standard PC power
399 kernel, keyed by the dts filename, c !! 196 supply. The EB66 schematic was published as a marketing poster
>> 197 advertising the 21066 as "the first microprocessor in the world with
>> 198 embedded PCI".
400 199
401 Built-in DTBs are generic enough and !! 200 config ALPHA_EB66P
>> 201 bool "EB66+"
>> 202 help
>> 203 Later variant of the EB66 board.
402 204
403 config BUILTIN_DTB_NAME !! 205 config ALPHA_EIGER
404 string "Source file for built-in dtb" !! 206 bool "Eiger"
405 depends on BUILTIN_DTB <<
406 help 207 help
407 Base name (without suffix, relative !! 208 Apparently an obscure OEM single-board computer based on the
408 for the DTS file that will be used t !! 209 Typhoon/Tsunami chipset family. Information on it is scanty.
409 the kernel. <<
410 210
411 config DMI !! 211 config ALPHA_JENSEN
412 bool "Enable DMI scanning" !! 212 bool "Jensen"
413 select DMI_SCAN_MACHINE_NON_EFI_FALLBA !! 213 depends on BROKEN
414 default y !! 214 select DMA_DIRECT_OPS
415 help 215 help
416 This enables SMBIOS/DMI feature for !! 216 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
417 DMI to identify machine quirks. !! 217 of the first-generation Alpha systems. A number of these systems
>> 218 seem to be available on the second- hand market. The Jensen is a
>> 219 floor-standing tower system which originally used a 150MHz 21064 It
>> 220 used programmable logic to interface a 486 EISA I/O bridge to the
>> 221 CPU.
418 222
419 config EFI !! 223 config ALPHA_LX164
420 bool "EFI runtime service support" !! 224 bool "LX164"
421 select UCS2_STRING <<
422 select EFI_RUNTIME_WRAPPERS <<
423 help 225 help
424 This enables the kernel to use EFI r !! 226 A technical overview of this board is available at
425 available (such as the EFI variable !! 227 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
426 228
427 config EFI_STUB !! 229 config ALPHA_LYNX
428 bool "EFI boot stub support" !! 230 bool "Lynx"
429 default y <<
430 depends on EFI <<
431 select EFI_GENERIC_STUB <<
432 help 231 help
433 This kernel feature allows the kerne !! 232 AlphaServer 2100A-based systems.
434 EFI firmware without the use of a bo <<
435 233
436 config SCHED_SMT !! 234 config ALPHA_MARVEL
437 bool "SMT scheduler support" !! 235 bool "Marvel"
438 depends on SMP <<
439 default y <<
440 help 236 help
441 Improves scheduler's performance whe !! 237 AlphaServer ES47 / ES80 / GS1280 based on EV7.
442 threads in one physical core. <<
443 238
444 config SMP !! 239 config ALPHA_MIATA
445 bool "Multi-Processing support" !! 240 bool "Miata"
446 help 241 help
447 This enables support for systems wit !! 242 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
448 a system with only one CPU, say N. I !! 243 or 600au).
449 than one CPU, say Y. <<
450 244
451 If you say N here, the kernel will r !! 245 config ALPHA_MIKASA
452 machines, but will use only one CPU !! 246 bool "Mikasa"
453 you say Y here, the kernel will run !! 247 help
454 uniprocessor machines. On a uniproce !! 248 AlphaServer 1000-based Alpha systems.
455 will run faster if you say N here. <<
456 249
457 See also the SMP-HOWTO available at !! 250 config ALPHA_NAUTILUS
>> 251 bool "Nautilus"
>> 252 help
>> 253 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
458 254
459 If you don't know what to do here, s !! 255 config ALPHA_NONAME_CH
>> 256 bool "Noname"
460 257
461 config HOTPLUG_CPU !! 258 config ALPHA_NORITAKE
462 bool "Support for hot-pluggable CPUs" !! 259 bool "Noritake"
463 depends on SMP <<
464 select GENERIC_IRQ_MIGRATION <<
465 help 260 help
466 Say Y here to allow turning CPUs off !! 261 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
467 controlled through /sys/devices/syst !! 262 systems.
468 (Note: power management support will <<
469 automatically on SMP systems. ) <<
470 Say N if you want to disable CPU hot <<
471 263
472 config NR_CPUS !! 264 config ALPHA_PC164
473 int "Maximum number of CPUs (2-256)" !! 265 bool "PC164"
474 range 2 256 !! 266
475 depends on SMP !! 267 config ALPHA_P2K
476 default "64" !! 268 bool "Platform2000"
>> 269
>> 270 config ALPHA_RAWHIDE
>> 271 bool "Rawhide"
477 help 272 help
478 This allows you to specify the maxim !! 273 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
479 kernel will support. !! 274 See HOWTO at
>> 275 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
480 276
481 config NUMA !! 277 config ALPHA_RUFFIAN
482 bool "NUMA Support" !! 278 bool "Ruffian"
483 select SMP <<
484 help 279 help
485 Say Y to compile the kernel with NUM !! 280 Samsung APC164UX. There is a page on known problems and workarounds
486 support. This option improves perfo !! 281 at <http://www.alphalinux.org/faq/FAQ-11.html>.
487 than one NUMA node; on single node s <<
488 to leave it disabled. <<
489 282
490 config NODES_SHIFT !! 283 config ALPHA_RX164
491 int !! 284 bool "RX164"
492 default "6" !! 285
493 depends on NUMA !! 286 config ALPHA_SX164
>> 287 bool "SX164"
494 288
495 config ARCH_FORCE_MAX_ORDER !! 289 config ALPHA_SABLE
496 int "Maximum zone order" !! 290 bool "Sable"
497 default "13" if PAGE_SIZE_64KB <<
498 default "11" if PAGE_SIZE_16KB <<
499 default "10" <<
500 help 291 help
501 The kernel memory allocator divides !! 292 Digital AlphaServer 2000 and 2100-based systems.
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 ALPHA_SHARK
509 when choosing a value for this optio !! 295 bool "Shark"
510 296
511 config ARCH_IOREMAP !! 297 config ALPHA_TAKARA
512 bool "Enable LoongArch DMW-based iorem !! 298 bool "Takara"
513 help 299 help
514 We use generic TLB-based ioremap() b !! 300 Alpha 11164-based OEM single-board computer.
515 protection support. However, you can <<
516 ioremap() for better performance. <<
517 301
518 config ARCH_WRITECOMBINE !! 302 config ALPHA_TITAN
519 bool "Enable WriteCombine (WUC) for io !! 303 bool "Titan"
520 help 304 help
521 LoongArch maintains cache coherency !! 305 AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
522 with LS7A chipsets the WUC attribute <<
523 is similar to WriteCombine) is out o <<
524 machanism for PCIe devices (this is <<
525 may be fixed in newer chipsets). <<
526 306
527 This means WUC can only used for wri !! 307 config ALPHA_WILDFIRE
528 this option is disabled by default, !! 308 bool "Wildfire"
529 SUC for ioremap(). You can enable th !! 309 help
530 to run on hardware without this bug. !! 310 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
531 311
532 You can override this setting via wr !! 312 endchoice
533 313
534 config ARCH_STRICT_ALIGN !! 314 # clear all implied options (don't want default values for those):
535 bool "Enable -mstrict-align to prevent !! 315 # Most of these machines have ISA slots; not exactly sure which don't,
>> 316 # and this doesn't activate hordes of code, so do it always.
>> 317 config ISA
>> 318 bool
536 default y 319 default y
537 help 320 help
538 Not all LoongArch cores support h/w !! 321 Find out whether you have ISA slots on your motherboard. ISA is the
539 -mstrict-align build parameter to pr !! 322 name of a bus system, i.e. the way the CPU talks to the other stuff
>> 323 inside your box. Other bus systems are PCI, EISA, MicroChannel
>> 324 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
>> 325 newer boards don't support it. If you have ISA, say Y, otherwise N.
540 326
541 CPUs with h/w unaligned access suppo !! 327 config ISA_DMA_API
542 Loongson-2K2000/2K3000/3A5000/3C5000 !! 328 bool
543 !! 329 default y
544 CPUs without h/w unaligned access su <<
545 Loongson-2K500/2K1000. <<
546 330
547 This option is enabled by default to !! 331 config PCI
548 on all LoongArch systems. But you ca !! 332 bool
549 to run kernel only on systems with h !! 333 depends on !ALPHA_JENSEN
550 order to optimise for performance. !! 334 select GENERIC_PCI_IOMAP
>> 335 default y
>> 336 help
>> 337 Find out whether you have a PCI motherboard. PCI is the name of a
>> 338 bus system, i.e. the way the CPU talks to the other stuff inside
>> 339 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
>> 340 VESA. If you have PCI, say Y, otherwise N.
551 341
552 config CPU_HAS_FPU !! 342 config PCI_DOMAINS
553 bool 343 bool
554 default y 344 default y
555 345
556 config CPU_HAS_LSX !! 346 config PCI_SYSCALL
557 bool "Support for the Loongson SIMD Ex !! 347 def_bool PCI
558 depends on AS_HAS_LSX_EXTENSION <<
559 help <<
560 Loongson SIMD Extension (LSX) introd <<
561 and a set of SIMD instructions to op <<
562 is enabled the kernel will support a <<
563 vector register contexts. If you kno <<
564 running on CPUs which do not support <<
565 not be making use of it then you may <<
566 the size & complexity of your kernel <<
567 348
568 If unsure, say Y. !! 349 config IOMMU_HELPER
>> 350 def_bool PCI
569 351
570 config CPU_HAS_LASX !! 352 config ALPHA_NONAME
571 bool "Support for the Loongson Advance !! 353 bool
572 depends on CPU_HAS_LSX !! 354 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
573 depends on AS_HAS_LASX_EXTENSION !! 355 default y
574 help 356 help
575 Loongson Advanced SIMD Extension (LA !! 357 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
576 registers and a set of SIMD instruct !! 358 UDB). This design was produced by Digital's Technical OEM (TOEM)
577 option is enabled the kernel will su !! 359 group. It uses the 21066 processor running at 166MHz or 233MHz. It
578 vector register contexts. If you kno !! 360 is a baby-AT size, and runs from a standard PC power supply. It has
579 running on CPUs which do not support !! 361 5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
580 not be making use of it then you may !! 362 2 versions, with either PS/2 or large DIN connectors for the
581 the size & complexity of your kernel !! 363 keyboard.
582 364
583 If unsure, say Y. !! 365 config ALPHA_EV4
>> 366 bool
>> 367 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
>> 368 default y if !ALPHA_LYNX
584 369
585 config CPU_HAS_LBT !! 370 config ALPHA_LCA
586 bool "Support for the Loongson Binary !! 371 bool
587 depends on AS_HAS_LBT_EXTENSION !! 372 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
588 help !! 373 default y
589 Loongson Binary Translation (LBT) in <<
590 to SCR3), x86/ARM eflags (eflags) an <<
591 Enabling this option allows the kern <<
592 specific to LBT. <<
593 374
594 If you want to use this feature, suc !! 375 config ALPHA_APECS
595 Translator (LAT), say Y. !! 376 bool
>> 377 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 378 default y
596 379
597 config CPU_HAS_PREFETCH !! 380 config ALPHA_EB64P
598 bool 381 bool
>> 382 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
599 default y 383 default y
>> 384 help
>> 385 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
>> 386 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 387 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 388 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 389 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 390 Runs from standard PC power supply.
600 391
601 config ARCH_SUPPORTS_KEXEC !! 392 config ALPHA_EV5
602 def_bool y !! 393 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 394 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
603 395
604 config ARCH_SUPPORTS_CRASH_DUMP !! 396 config ALPHA_EV4
605 def_bool y !! 397 bool
>> 398 default y if ALPHA_LYNX && !ALPHA_EV5
606 399
607 config ARCH_SELECTS_CRASH_DUMP !! 400 config ALPHA_CIA
608 def_bool y !! 401 bool
609 depends on CRASH_DUMP !! 402 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
610 select RELOCATABLE !! 403 default y
611 404
612 config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATIO !! 405 config ALPHA_EV56
613 def_bool CRASH_RESERVE !! 406 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 407 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
614 408
615 config RELOCATABLE !! 409 config ALPHA_EV56
616 bool "Relocatable kernel" !! 410 prompt "EV56 CPU (speed >= 333MHz)?"
617 select ARCH_HAS_RELR !! 411 depends on ALPHA_NORITAKE || ALPHA_PRIMO
>> 412
>> 413 config ALPHA_EV56
>> 414 prompt "EV56 CPU (speed >= 400MHz)?"
>> 415 depends on ALPHA_RAWHIDE
>> 416
>> 417 config ALPHA_PRIMO
>> 418 bool "EV5 CPU daughtercard (model 5/xxx)?"
>> 419 depends on ALPHA_NORITAKE || ALPHA_MIKASA
618 help 420 help
619 This builds the kernel as a Position !! 421 Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
620 which retains all relocation metadat <<
621 the kernel binary at runtime to a di <<
622 its link address. <<
623 422
624 config RANDOMIZE_BASE !! 423 config ALPHA_GAMMA
625 bool "Randomize the address of the ker !! 424 bool "EV5 CPU(s) (model 5/xxx)?"
626 depends on RELOCATABLE !! 425 depends on ALPHA_SABLE
627 help 426 help
628 Randomizes the physical and virtual !! 427 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
629 kernel image is loaded, as a securi !! 428
630 deters exploit attempts relying on !! 429 config ALPHA_GAMMA
631 of kernel internals. !! 430 bool
>> 431 depends on ALPHA_LYNX
>> 432 default y
>> 433
>> 434 config ALPHA_T2
>> 435 bool
>> 436 depends on ALPHA_SABLE || ALPHA_LYNX
>> 437 default y
>> 438
>> 439 config ALPHA_PYXIS
>> 440 bool
>> 441 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 442 default y
632 443
633 The kernel will be offset by up to !! 444 config ALPHA_EV6
>> 445 bool
>> 446 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 447 default y
634 448
635 If unsure, say N. !! 449 config ALPHA_TSUNAMI
>> 450 bool
>> 451 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
>> 452 default y
636 453
637 config RANDOMIZE_BASE_MAX_OFFSET !! 454 config ALPHA_EV67
638 hex "Maximum KASLR offset" if EXPERT !! 455 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
639 depends on RANDOMIZE_BASE !! 456 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
640 range 0x0 0x10000000 <<
641 default "0x01000000" <<
642 help 457 help
643 When KASLR is active, this provides !! 458 Is this a machine based on the EV67 core? If in doubt, select N here
644 be applied to the kernel image. It s !! 459 and the machine will be treated as an EV6.
645 amount of physical RAM available in <<
646 460
647 This is limited by the size of the l !! 461 config ALPHA_MCPCIA
>> 462 bool
>> 463 depends on ALPHA_RAWHIDE
>> 464 default y
648 465
649 source "kernel/livepatch/Kconfig" !! 466 config ALPHA_POLARIS
>> 467 bool
>> 468 depends on ALPHA_RX164
>> 469 default y
650 470
651 config PARAVIRT !! 471 config ALPHA_IRONGATE
652 bool "Enable paravirtualization code" !! 472 bool
653 depends on AS_HAS_LVZ_EXTENSION !! 473 depends on ALPHA_NAUTILUS
>> 474 default y
>> 475
>> 476 config GENERIC_HWEIGHT
>> 477 bool
>> 478 default y if !ALPHA_EV67
>> 479
>> 480 config ALPHA_AVANTI
>> 481 bool
>> 482 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 483 default y
654 help 484 help
655 This changes the kernel so it can mo !! 485 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
656 under a hypervisor, potentially impr !! 486 Alphas. Info at
657 over full virtualization. However, !! 487 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
658 the kernel is theoretically slower a <<
659 488
660 config PARAVIRT_TIME_ACCOUNTING !! 489 config ALPHA_BROKEN_IRQ_MASK
661 bool "Paravirtual steal time accountin !! 490 bool
662 depends on PARAVIRT !! 491 depends on ALPHA_GENERIC || ALPHA_PC164
>> 492 default y
>> 493
>> 494 config VGA_HOSE
>> 495 bool
>> 496 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
>> 497 default y
663 help 498 help
664 Select this option to enable fine gr !! 499 Support VGA on an arbitrary hose; needed for several platforms
665 accounting. Time spent executing oth !! 500 which always have multiple hoses, and whose consoles support it.
666 the current vCPU is discounted from <<
667 that, there can be a small performan <<
668 501
669 If in doubt, say N here. <<
670 502
671 endmenu !! 503 config ALPHA_QEMU
>> 504 bool "Run under QEMU emulation"
>> 505 depends on !ALPHA_GENERIC
>> 506 ---help---
>> 507 Assume the presence of special features supported by QEMU PALcode
>> 508 that reduce the overhead of system emulation.
672 509
673 config ARCH_SELECT_MEMORY_MODEL !! 510 Generic kernels will auto-detect QEMU. But when building a
674 def_bool y !! 511 system-specific kernel, the assumption is that we want to
>> 512 eliminate as many runtime tests as possible.
675 513
676 config ARCH_FLATMEM_ENABLE !! 514 If unsure, say N.
677 def_bool y !! 515
678 depends on !NUMA !! 516
>> 517 config ALPHA_SRM
>> 518 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
>> 519 depends on TTY
>> 520 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
>> 521 ---help---
>> 522 There are two different types of booting firmware on Alphas: SRM,
>> 523 which is command line driven, and ARC, which uses menus and arrow
>> 524 keys. Details about the Linux/Alpha booting process are contained in
>> 525 the Linux/Alpha FAQ, accessible on the WWW from
>> 526 <http://www.alphalinux.org/>.
>> 527
>> 528 The usual way to load Linux on an Alpha machine is to use MILO
>> 529 (a bootloader that lets you pass command line parameters to the
>> 530 kernel just like lilo does for the x86 architecture) which can be
>> 531 loaded either from ARC or can be installed directly as a permanent
>> 532 firmware replacement from floppy (which requires changing a certain
>> 533 jumper on the motherboard). If you want to do either of these, say N
>> 534 here. If MILO doesn't work on your system (true for Jensen
>> 535 motherboards), you can bypass it altogether and boot Linux directly
>> 536 from an SRM console; say Y here in order to do that. Note that you
>> 537 won't be able to boot from an IDE disk using SRM.
>> 538
>> 539 If unsure, say N.
679 540
680 config ARCH_SPARSEMEM_ENABLE !! 541 config EISA
>> 542 bool
>> 543 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
>> 544 default y
>> 545
>> 546 config ARCH_MAY_HAVE_PC_FDC
681 def_bool y 547 def_bool y
682 select SPARSEMEM_VMEMMAP_ENABLE !! 548
>> 549 config SMP
>> 550 bool "Symmetric multi-processing support"
>> 551 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 552 ---help---
>> 553 This enables support for systems with more than one CPU. If you have
>> 554 a system with only one CPU, say N. If you have a system with more
>> 555 than one CPU, say Y.
>> 556
>> 557 If you say N here, the kernel will run on uni- and multiprocessor
>> 558 machines, but will use only one CPU of a multiprocessor machine. If
>> 559 you say Y here, the kernel will run on many, but not all,
>> 560 uniprocessor machines. On a uniprocessor machine, the kernel
>> 561 will run faster if you say N here.
>> 562
>> 563 See also the SMP-HOWTO available at
>> 564 <http://www.tldp.org/docs.html#howto>.
>> 565
>> 566 If you don't know what to do here, say N.
>> 567
>> 568 config HAVE_DEC_LOCK
>> 569 bool
>> 570 depends on SMP
>> 571 default y
>> 572
>> 573 config NR_CPUS
>> 574 int "Maximum number of CPUs (2-32)"
>> 575 range 2 32
>> 576 depends on SMP
>> 577 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 578 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
>> 579 help
>> 580 MARVEL support can handle a maximum of 32 CPUs, all the others
>> 581 with working support have a maximum of 4 CPUs.
>> 582
>> 583 config ARCH_DISCONTIGMEM_ENABLE
>> 584 bool "Discontiguous Memory Support"
683 help 585 help
684 Say Y to support efficient handling !! 586 Say Y to support efficient handling of discontiguous physical memory,
685 for architectures which are either N 587 for architectures which are either NUMA (Non-Uniform Memory Access)
686 or have huge holes in the physical a 588 or have huge holes in the physical address space for other reasons.
687 See <file:Documentation/mm/numa.rst> !! 589 See <file:Documentation/vm/numa> for more.
688 590
689 config ARCH_MEMORY_PROBE !! 591 source "mm/Kconfig"
690 def_bool y <<
691 depends on MEMORY_HOTPLUG <<
692 592
693 config MMU !! 593 config NUMA
694 bool !! 594 bool "NUMA Support (EXPERIMENTAL)"
695 default y !! 595 depends on DISCONTIGMEM && BROKEN
>> 596 help
>> 597 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 598 Access). This option is for configuring high-end multiprocessor
>> 599 server machines. If in doubt, say N.
>> 600
>> 601 config ALPHA_WTINT
>> 602 bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
>> 603 default y if ALPHA_QEMU
>> 604 default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
>> 605 default n if !ALPHA_SRM && !ALPHA_GENERIC
>> 606 default y if SMP
>> 607 ---help---
>> 608 The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
>> 609 to sleep until the next interrupt. This may reduce the power
>> 610 consumed, and the heat produced by the computer. However, it has
>> 611 the side effect of making the cycle counter unreliable as a timing
>> 612 device across the sleep.
>> 613
>> 614 For emulation under QEMU, definitely say Y here, as we have other
>> 615 mechanisms for measuring time than the cycle counter.
696 616
697 config ARCH_MMAP_RND_BITS_MIN !! 617 For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
698 default 12 !! 618 MILO, sleep mode is not supported so you might as well say N here.
699 619
700 config ARCH_MMAP_RND_BITS_MAX !! 620 For SMP systems we cannot use the cycle counter for timing anyway,
701 default 18 !! 621 so you might as well say Y here.
702 622
703 config ARCH_SUPPORTS_UPROBES !! 623 If unsure, say N.
704 def_bool y !! 624
>> 625 config NODES_SHIFT
>> 626 int
>> 627 default "7"
>> 628 depends on NEED_MULTIPLE_NODES
705 629
706 config KASAN_SHADOW_OFFSET !! 630 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
707 hex !! 631 config ALPHA_LARGE_VMALLOC
708 default 0x0 !! 632 bool
709 depends on KASAN !! 633 ---help---
>> 634 Process creation and other aspects of virtual memory management can
>> 635 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 636 allocations. This equates to about 8GB.
>> 637
>> 638 Under normal circumstances, this is so far and above what is needed
>> 639 as to be laughable. However, there are certain applications (such
>> 640 as benchmark-grade in-kernel web serving) that can make use of as
>> 641 much vmalloc space as is available.
>> 642
>> 643 Say N unless you know you need gobs and gobs of vmalloc space.
>> 644
>> 645 config VERBOSE_MCHECK
>> 646 bool "Verbose Machine Checks"
>> 647
>> 648 config VERBOSE_MCHECK_ON
>> 649 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 650 depends on VERBOSE_MCHECK
>> 651 default 1
>> 652 ---help---
>> 653 This option allows the default printing mode to be set, and then
>> 654 possibly overridden by a boot command argument.
>> 655
>> 656 For example, if one wanted the option of printing verbose
>> 657 machine checks, but wanted the default to be as if verbose
>> 658 machine check printing was turned off, then one would choose
>> 659 the printing mode to be 0. Then, upon reboot, one could add
>> 660 the boot command line "verbose_mcheck=1" to get the normal
>> 661 verbose machine check printing, or "verbose_mcheck=2" to get
>> 662 the maximum information available.
710 663
711 menu "Power management options" !! 664 Take the default (1) unless you want more control or more info.
712 665
713 config ARCH_SUSPEND_POSSIBLE !! 666 choice
714 def_bool y !! 667 prompt "Timer interrupt frequency (HZ)?"
>> 668 default HZ_128 if ALPHA_QEMU
>> 669 default HZ_1200 if ALPHA_RAWHIDE
>> 670 default HZ_1024
>> 671 ---help---
>> 672 The frequency at which timer interrupts occur. A high frequency
>> 673 minimizes latency, whereas a low frequency minimizes overhead of
>> 674 process accounting. The later effect is especially significant
>> 675 when being run under QEMU.
>> 676
>> 677 Note that some Alpha hardware cannot change the interrupt frequency
>> 678 of the timer. If unsure, say 1024 (or 1200 for Rawhide).
>> 679
>> 680 config HZ_32
>> 681 bool "32 Hz"
>> 682 config HZ_64
>> 683 bool "64 Hz"
>> 684 config HZ_128
>> 685 bool "128 Hz"
>> 686 config HZ_256
>> 687 bool "256 Hz"
>> 688 config HZ_1024
>> 689 bool "1024 Hz"
>> 690 config HZ_1200
>> 691 bool "1200 Hz"
>> 692 endchoice
715 693
716 config ARCH_HIBERNATION_POSSIBLE !! 694 config HZ
717 def_bool y !! 695 int
>> 696 default 32 if HZ_32
>> 697 default 64 if HZ_64
>> 698 default 128 if HZ_128
>> 699 default 256 if HZ_256
>> 700 default 1200 if HZ_1200
>> 701 default 1024
>> 702
>> 703 source "drivers/pci/Kconfig"
>> 704 source "drivers/eisa/Kconfig"
>> 705
>> 706 source "drivers/pcmcia/Kconfig"
>> 707
>> 708 config SRM_ENV
>> 709 tristate "SRM environment through procfs"
>> 710 depends on PROC_FS
>> 711 ---help---
>> 712 If you enable this option, a subdirectory inside /proc called
>> 713 /proc/srm_environment will give you access to the all important
>> 714 SRM environment variables (those which have a name) and also
>> 715 to all others (by their internal number).
>> 716
>> 717 SRM is something like a BIOS for Alpha machines. There are some
>> 718 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 719 support (hey, that's not SRM!).
>> 720
>> 721 Despite the fact that this driver doesn't work on all Alphas (but
>> 722 only on those which have SRM as their firmware), it's save to
>> 723 build it even if your particular machine doesn't know about SRM
>> 724 (or if you intend to compile a generic kernel). It will simply
>> 725 not create those subdirectory in /proc (and give you some warning,
>> 726 of course).
718 727
719 source "kernel/power/Kconfig" !! 728 This driver is also available as a module and will be called
720 source "drivers/acpi/Kconfig" !! 729 srm_env then.
721 source "drivers/cpufreq/Kconfig" !! 730
>> 731 source "fs/Kconfig.binfmt"
722 732
723 endmenu 733 endmenu
724 734
725 source "arch/loongarch/kvm/Kconfig" !! 735 source "net/Kconfig"
>> 736
>> 737 source "drivers/Kconfig"
>> 738
>> 739 source "fs/Kconfig"
>> 740
>> 741 source "arch/alpha/Kconfig.debug"
>> 742
>> 743 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 744 # but we also need it if VGA_HOSE is set
>> 745 config DUMMY_CONSOLE
>> 746 bool
>> 747 depends on VGA_HOSE
>> 748 default y
>> 749
>> 750 source "security/Kconfig"
>> 751
>> 752 source "crypto/Kconfig"
>> 753
>> 754 source "lib/Kconfig"
>> 755
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