1 # SPDX-License-Identifier: GPL-2.0 !! 1 config ALPHA
2 config LOONGARCH <<
3 bool 2 bool
4 default y 3 default y
5 select ACPI !! 4 select HAVE_AOUT
6 select ACPI_GENERIC_GSI if ACPI !! 5 select HAVE_IDE
7 select ACPI_MCFG if ACPI !! 6 select HAVE_OPROFILE
8 select ACPI_HOTPLUG_CPU if ACPI_PROCES !! 7 select HAVE_PCSPKR_PLATFORM
9 select ACPI_PPTT if ACPI !! 8 select HAVE_PERF_EVENTS
10 select ACPI_SYSTEM_POWER_STATES_SUPPOR !! 9 select HAVE_DMA_ATTRS
11 select ARCH_BINFMT_ELF_STATE !! 10 select HAVE_GENERIC_HARDIRQS
12 select ARCH_DISABLE_KASAN_INLINE !! 11 select VIRT_TO_BUS
13 select ARCH_ENABLE_MEMORY_HOTPLUG <<
14 select ARCH_ENABLE_MEMORY_HOTREMOVE <<
15 select ARCH_ENABLE_THP_MIGRATION if TR <<
16 select ARCH_HAS_ACPI_TABLE_UPGRADE <<
17 select ARCH_HAS_CPU_FINALIZE_INIT <<
18 select ARCH_HAS_CURRENT_STACK_POINTER <<
19 select ARCH_HAS_DEBUG_VM_PGTABLE <<
20 select ARCH_HAS_FAST_MULTIPLIER <<
21 select ARCH_HAS_FORTIFY_SOURCE <<
22 select ARCH_HAS_KCOV <<
23 select ARCH_HAS_KERNEL_FPU_SUPPORT if <<
24 select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS <<
25 select ARCH_HAS_NON_OVERLAPPING_ADDRES <<
26 select ARCH_HAS_PTE_DEVMAP <<
27 select ARCH_HAS_PTE_SPECIAL <<
28 select ARCH_HAS_SET_MEMORY <<
29 select ARCH_HAS_SET_DIRECT_MAP <<
30 select ARCH_HAS_TICK_BROADCAST if GENE <<
31 select ARCH_INLINE_READ_LOCK if !PREEM <<
32 select ARCH_INLINE_READ_LOCK_BH if !PR <<
33 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
34 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
35 select ARCH_INLINE_READ_UNLOCK if !PRE <<
36 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
37 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
38 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
39 select ARCH_INLINE_WRITE_LOCK if !PREE <<
40 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
41 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
42 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
43 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
44 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
45 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
46 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
47 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
48 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
49 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
50 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
51 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
52 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
53 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
54 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
55 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
56 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
57 select ARCH_KEEP_MEMBLOCK <<
58 select ARCH_MIGHT_HAVE_PC_PARPORT <<
59 select ARCH_MIGHT_HAVE_PC_SERIO <<
60 select ARCH_SPARSEMEM_ENABLE <<
61 select ARCH_STACKWALK <<
62 select ARCH_SUPPORTS_ACPI <<
63 select ARCH_SUPPORTS_ATOMIC_RMW <<
64 select ARCH_SUPPORTS_HUGETLBFS <<
65 select ARCH_SUPPORTS_INT128 if CC_HAS_ <<
66 select ARCH_SUPPORTS_LTO_CLANG <<
67 select ARCH_SUPPORTS_LTO_CLANG_THIN <<
68 select ARCH_SUPPORTS_NUMA_BALANCING <<
69 select ARCH_USE_BUILTIN_BSWAP <<
70 select ARCH_USE_CMPXCHG_LOCKREF <<
71 select ARCH_USE_QUEUED_RWLOCKS <<
72 select ARCH_USE_QUEUED_SPINLOCKS <<
73 select ARCH_WANT_DEFAULT_BPF_JIT <<
74 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
75 select ARCH_WANT_LD_ORPHAN_WARN <<
76 select ARCH_WANT_OPTIMIZE_HUGETLB_VMEM <<
77 select ARCH_WANTS_NO_INSTR <<
78 select ARCH_WANTS_THP_SWAP if HAVE_ARC <<
79 select BUILDTIME_TABLE_SORT <<
80 select COMMON_CLK <<
81 select CPU_PM <<
82 select EFI <<
83 select GENERIC_CLOCKEVENTS <<
84 select GENERIC_CMOS_UPDATE <<
85 select GENERIC_CPU_AUTOPROBE <<
86 select GENERIC_CPU_DEVICES <<
87 select GENERIC_CPU_VULNERABILITIES <<
88 select GENERIC_ENTRY <<
89 select GENERIC_GETTIMEOFDAY <<
90 select GENERIC_IOREMAP if !ARCH_IOREMA <<
91 select GENERIC_IRQ_MATRIX_ALLOCATOR <<
92 select GENERIC_IRQ_MULTI_HANDLER <<
93 select GENERIC_IRQ_PROBE 12 select GENERIC_IRQ_PROBE
>> 13 select AUTO_IRQ_AFFINITY if SMP
94 select GENERIC_IRQ_SHOW 14 select GENERIC_IRQ_SHOW
95 select GENERIC_LIB_ASHLDI3 !! 15 select ARCH_WANT_OPTIONAL_GPIOLIB
96 select GENERIC_LIB_ASHRDI3 !! 16 select ARCH_WANT_IPC_PARSE_VERSION
97 select GENERIC_LIB_CMPDI2 !! 17 select ARCH_HAVE_NMI_SAFE_CMPXCHG
98 select GENERIC_LIB_LSHRDI3 <<
99 select GENERIC_LIB_UCMPDI2 <<
100 select GENERIC_LIB_DEVMEM_IS_ALLOWED <<
101 select GENERIC_PCI_IOMAP <<
102 select GENERIC_SCHED_CLOCK <<
103 select GENERIC_SMP_IDLE_THREAD 18 select GENERIC_SMP_IDLE_THREAD
104 select GENERIC_TIME_VSYSCALL !! 19 select GENERIC_CMOS_UPDATE
105 select GENERIC_VDSO_TIME_NS !! 20 select GENERIC_STRNCPY_FROM_USER
106 select GPIOLIB !! 21 select GENERIC_STRNLEN_USER
107 select HAS_IOPORT <<
108 select HAVE_ARCH_AUDITSYSCALL <<
109 select HAVE_ARCH_JUMP_LABEL <<
110 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
111 select HAVE_ARCH_KASAN <<
112 select HAVE_ARCH_KFENCE <<
113 select HAVE_ARCH_KGDB if PERF_EVENTS <<
114 select HAVE_ARCH_MMAP_RND_BITS if MMU <<
115 select HAVE_ARCH_RANDOMIZE_KSTACK_OFFS <<
116 select HAVE_ARCH_SECCOMP <<
117 select HAVE_ARCH_SECCOMP_FILTER <<
118 select HAVE_ARCH_TRACEHOOK <<
119 select HAVE_ARCH_TRANSPARENT_HUGEPAGE <<
120 select HAVE_ARCH_USERFAULTFD_MINOR if <<
121 select HAVE_ASM_MODVERSIONS <<
122 select HAVE_CONTEXT_TRACKING_USER <<
123 select HAVE_C_RECORDMCOUNT <<
124 select HAVE_DEBUG_KMEMLEAK <<
125 select HAVE_DEBUG_STACKOVERFLOW <<
126 select HAVE_DMA_CONTIGUOUS <<
127 select HAVE_DYNAMIC_FTRACE <<
128 select HAVE_DYNAMIC_FTRACE_WITH_ARGS <<
129 select HAVE_DYNAMIC_FTRACE_WITH_DIRECT <<
130 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
131 select HAVE_EBPF_JIT <<
132 select HAVE_EFFICIENT_UNALIGNED_ACCESS <<
133 select HAVE_EXIT_THREAD <<
134 select HAVE_GUP_FAST <<
135 select HAVE_FTRACE_MCOUNT_RECORD <<
136 select HAVE_FUNCTION_ARG_ACCESS_API <<
137 select HAVE_FUNCTION_ERROR_INJECTION <<
138 select HAVE_FUNCTION_GRAPH_RETVAL if H <<
139 select HAVE_FUNCTION_GRAPH_TRACER <<
140 select HAVE_FUNCTION_TRACER <<
141 select HAVE_GCC_PLUGINS <<
142 select HAVE_GENERIC_VDSO <<
143 select HAVE_HW_BREAKPOINT if PERF_EVEN <<
144 select HAVE_IOREMAP_PROT <<
145 select HAVE_IRQ_EXIT_ON_IRQ_STACK <<
146 select HAVE_IRQ_TIME_ACCOUNTING <<
147 select HAVE_KPROBES <<
148 select HAVE_KPROBES_ON_FTRACE <<
149 select HAVE_KRETPROBES <<
150 select HAVE_LIVEPATCH <<
151 select HAVE_MOD_ARCH_SPECIFIC 22 select HAVE_MOD_ARCH_SPECIFIC
152 select HAVE_NMI !! 23 select MODULES_USE_ELF_RELA
153 select HAVE_OBJTOOL if AS_HAS_EXPLICIT !! 24 select ODD_RT_SIGACTION
154 select HAVE_PCI !! 25 select OLD_SIGSUSPEND
155 select HAVE_PERF_EVENTS !! 26 help
156 select HAVE_PERF_REGS !! 27 The Alpha is a 64-bit general-purpose processor designed and
157 select HAVE_PERF_USER_STACK_DUMP !! 28 marketed by the Digital Equipment Corporation of blessed memory,
158 select HAVE_PREEMPT_DYNAMIC_KEY !! 29 now Hewlett-Packard. The Alpha Linux project has a home page at
159 select HAVE_REGS_AND_STACK_ACCESS_API !! 30 <http://www.alphalinux.org/>.
160 select HAVE_RELIABLE_STACKTRACE if UNW <<
161 select HAVE_RETHOOK <<
162 select HAVE_RSEQ <<
163 select HAVE_RUST <<
164 select HAVE_SAMPLE_FTRACE_DIRECT <<
165 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI <<
166 select HAVE_SETUP_PER_CPU_AREA if NUMA <<
167 select HAVE_STACK_VALIDATION if HAVE_O <<
168 select HAVE_STACKPROTECTOR <<
169 select HAVE_SYSCALL_TRACEPOINTS <<
170 select HAVE_TIF_NOHZ <<
171 select HAVE_VIRT_CPU_ACCOUNTING_GEN if <<
172 select IRQ_FORCED_THREADING <<
173 select IRQ_LOONGARCH_CPU <<
174 select LOCK_MM_AND_FIND_VMA <<
175 select MMU_GATHER_MERGE_VMAS if MMU <<
176 select MODULES_USE_ELF_RELA if MODULES <<
177 select NEED_PER_CPU_EMBED_FIRST_CHUNK <<
178 select NEED_PER_CPU_PAGE_FIRST_CHUNK <<
179 select OF <<
180 select OF_EARLY_FLATTREE <<
181 select PCI <<
182 select PCI_DOMAINS_GENERIC <<
183 select PCI_ECAM if ACPI <<
184 select PCI_LOONGSON <<
185 select PCI_MSI_ARCH_FALLBACKS <<
186 select PCI_QUIRKS <<
187 select PERF_USE_VMALLOC <<
188 select RTC_LIB <<
189 select SPARSE_IRQ <<
190 select SYSCTL_ARCH_UNALIGN_ALLOW <<
191 select SYSCTL_ARCH_UNALIGN_NO_WARN <<
192 select SYSCTL_EXCEPTION_TRACE <<
193 select SWIOTLB <<
194 select TRACE_IRQFLAGS_SUPPORT <<
195 select USE_PERCPU_NUMA_NODE_ID <<
196 select USER_STACKTRACE_SUPPORT <<
197 select VDSO_GETRANDOM <<
198 select ZONE_DMA32 <<
199 <<
200 config 32BIT <<
201 bool <<
202 31
203 config 64BIT 32 config 64BIT
204 def_bool y 33 def_bool y
205 34
206 config GENERIC_BUG !! 35 config MMU
207 def_bool y !! 36 bool
208 depends on BUG !! 37 default y
209 <<
210 config GENERIC_BUG_RELATIVE_POINTERS <<
211 def_bool y <<
212 depends on GENERIC_BUG <<
213 38
214 config GENERIC_CALIBRATE_DELAY !! 39 config RWSEM_GENERIC_SPINLOCK
215 def_bool y !! 40 bool
216 41
217 config GENERIC_CSUM !! 42 config RWSEM_XCHGADD_ALGORITHM
218 def_bool y !! 43 bool
>> 44 default y
219 45
220 config GENERIC_HWEIGHT !! 46 config ARCH_HAS_ILOG2_U32
221 def_bool y !! 47 bool
>> 48 default n
222 49
223 config L1_CACHE_SHIFT !! 50 config ARCH_HAS_ILOG2_U64
224 int !! 51 bool
225 default "6" !! 52 default n
226 53
227 config LOCKDEP_SUPPORT !! 54 config GENERIC_CALIBRATE_DELAY
228 bool 55 bool
229 default y 56 default y
230 57
231 config STACKTRACE_SUPPORT !! 58 config ZONE_DMA
232 bool 59 bool
233 default y 60 default y
234 61
235 # MACH_LOONGSON32 and MACH_LOONGSON64 are deli !! 62 config ARCH_DMA_ADDR_T_64BIT
236 # MIPS Loongson code, to preserve Loongson-spe !! 63 def_bool y
237 # are shared between architectures, and specif <<
238 config MACH_LOONGSON32 <<
239 def_bool 32BIT <<
240 64
241 config MACH_LOONGSON64 !! 65 config NEED_DMA_MAP_STATE
242 def_bool 64BIT !! 66 def_bool y
243 67
244 config FIX_EARLYCON_MEM !! 68 config NEED_SG_DMA_LENGTH
245 def_bool y 69 def_bool y
246 70
247 config PGTABLE_2LEVEL !! 71 config GENERIC_ISA_DMA
248 bool <<
249 <<
250 config PGTABLE_3LEVEL <<
251 bool 72 bool
>> 73 default y
252 74
253 config PGTABLE_4LEVEL !! 75 source "init/Kconfig"
254 bool !! 76 source "kernel/Kconfig.freezer"
255 77
256 config PGTABLE_LEVELS <<
257 int <<
258 default 2 if PGTABLE_2LEVEL <<
259 default 3 if PGTABLE_3LEVEL <<
260 default 4 if PGTABLE_4LEVEL <<
261 78
262 config SCHED_OMIT_FRAME_POINTER !! 79 menu "System setup"
263 bool <<
264 default y <<
265 80
266 config AS_HAS_EXPLICIT_RELOCS !! 81 choice
267 def_bool $(as-instr,x:pcalau12i \$t0$( !! 82 prompt "Alpha system type"
>> 83 default ALPHA_GENERIC
>> 84 ---help---
>> 85 This is the system type of your hardware. A "generic" kernel will
>> 86 run on any supported Alpha system. However, if you configure a
>> 87 kernel for your specific system, it will be faster and smaller.
268 88
269 config AS_HAS_FCSR_CLASS !! 89 To find out what type of Alpha system you have, you may want to
270 def_bool $(as-instr,movfcsr2gr \$t0$(c !! 90 check out the Linux/Alpha FAQ, accessible on the WWW from
>> 91 <http://www.alphalinux.org/>. In summary:
271 92
272 config AS_HAS_THIN_ADD_SUB !! 93 Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
273 def_bool $(cc-option,-Wa$(comma)-mthin !! 94 Alpha-XL XL-233, XL-266
>> 95 AlphaBook1 Alpha laptop
>> 96 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
>> 97 Cabriolet AlphaPC64, AlphaPCI64
>> 98 DP264 DP264 / DS20 / ES40 / DS10 / DS10L
>> 99 EB164 EB164 21164 evaluation board
>> 100 EB64+ EB64+ 21064 evaluation board
>> 101 EB66 EB66 21066 evaluation board
>> 102 EB66+ EB66+ 21066 evaluation board
>> 103 Jensen DECpc 150, DEC 2000 models 300, 500
>> 104 LX164 AlphaPC164-LX
>> 105 Lynx AS 2100A
>> 106 Miata Personal Workstation 433/500/600 a/au
>> 107 Marvel AlphaServer ES47 / ES80 / GS1280
>> 108 Mikasa AS 1000
>> 109 Noname AXPpci33, UDB (Multia)
>> 110 Noritake AS 1000A, AS 600A, AS 800
>> 111 PC164 AlphaPC164
>> 112 Rawhide AS 1200, AS 4000, AS 4100
>> 113 Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
>> 114 SX164 AlphaPC164-SX
>> 115 Sable AS 2000, AS 2100
>> 116 Shark DS 20L
>> 117 Takara Takara (OEM)
>> 118 Titan AlphaServer ES45 / DS25 / DS15
>> 119 Wildfire AlphaServer GS 40/80/160/320
274 120
275 config AS_HAS_LSX_EXTENSION !! 121 If you don't know what to do, choose "generic".
276 def_bool $(as-instr,vld \$vr0$(comma)\ <<
277 122
278 config AS_HAS_LASX_EXTENSION !! 123 config ALPHA_GENERIC
279 def_bool $(as-instr,xvld \$xr0$(comma) !! 124 bool "Generic"
>> 125 depends on TTY
>> 126 help
>> 127 A generic kernel will run on all supported Alpha hardware.
280 128
281 config AS_HAS_LBT_EXTENSION !! 129 config ALPHA_ALCOR
282 def_bool $(as-instr,movscr2gr \$a0$(co !! 130 bool "Alcor/Alpha-XLT"
>> 131 help
>> 132 For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
>> 133 slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
>> 134 Address, CIA) - a 383 pin plastic PGA). It provides a DRAM
>> 135 controller (256-bit memory bus) and a PCI interface. It also does
>> 136 all the work required to support an external Bcache and to maintain
>> 137 memory coherence when a PCI device DMAs into (or out of) memory.
283 138
284 config AS_HAS_LVZ_EXTENSION !! 139 config ALPHA_XL
285 def_bool $(as-instr,hvcl 0) !! 140 bool "Alpha-XL"
>> 141 help
>> 142 XL-233 and XL-266-based Alpha systems.
286 143
287 menu "Kernel type and options" !! 144 config ALPHA_BOOK1
>> 145 bool "AlphaBook1"
>> 146 help
>> 147 Dec AlphaBook1/Burns Alpha-based laptops.
288 148
289 source "kernel/Kconfig.hz" !! 149 config ALPHA_AVANTI_CH
>> 150 bool "Avanti"
290 151
291 choice !! 152 config ALPHA_CABRIOLET
292 prompt "Page Table Layout" !! 153 bool "Cabriolet"
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 154 help
345 This option selects 64KB page size w !! 155 Cabriolet AlphaPC64, AlphaPCI64 systems. Derived from EB64+ but now
346 support a maximum of 55 bits of appl !! 156 baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
>> 157 slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
>> 158 Bcache SIMMs. Requires power supply with 3.3V output.
347 159
348 endchoice !! 160 config ALPHA_DP264
>> 161 bool "DP264"
>> 162 help
>> 163 Various 21264 systems with the tsunami core logic chipset.
>> 164 API Networks: 264DP, UP2000(+), CS20;
>> 165 Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
349 166
350 config CMDLINE !! 167 config ALPHA_EB164
351 string "Built-in kernel command line" !! 168 bool "EB164"
352 help 169 help
353 For most platforms, the arguments fo !! 170 EB164 21164 evaluation board from DEC. Uses 21164 and ALCOR. Has
354 are provided at run-time, during boo !! 171 ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
355 where either no arguments are being !! 172 shared with an ISA slot) and 2 32-bit PCI slots. Uses plus-in
356 arguments are insufficient or even i !! 173 Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
>> 174 MOUSE (PS2 style), RTC/NVRAM. Boot ROM is Flash. PC-AT-sized
>> 175 motherboard. Requires power supply with 3.3V output.
357 176
358 When that occurs, it is possible to !! 177 config ALPHA_EB64P_CH
359 line here and choose how the kernel !! 178 bool "EB64+"
360 179
361 choice !! 180 config ALPHA_EB66
362 prompt "Kernel command line type" !! 181 bool "EB66"
363 default CMDLINE_BOOTLOADER <<
364 help 182 help
365 Choose how the kernel will handle th !! 183 A Digital DS group board. Uses 21066 or 21066A. I/O sub-system is
366 line. !! 184 identical to EB64+. Baby PC-AT size. Runs from standard PC power
>> 185 supply. The EB66 schematic was published as a marketing poster
>> 186 advertising the 21066 as "the first microprocessor in the world with
>> 187 embedded PCI".
367 188
368 config CMDLINE_BOOTLOADER !! 189 config ALPHA_EB66P
369 bool "Use bootloader kernel arguments !! 190 bool "EB66+"
370 help 191 help
371 Prefer the command-line passed by th !! 192 Later variant of the EB66 board.
372 Use the built-in command line as fal <<
373 during boot. This is the default beh <<
374 <<
375 config CMDLINE_EXTEND <<
376 bool "Use built-in to extend bootloade <<
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 <<
391 endchoice <<
392 193
393 config BUILTIN_DTB !! 194 config ALPHA_EIGER
394 bool "Enable built-in dtb in kernel" !! 195 bool "Eiger"
395 depends on OF <<
396 help 196 help
397 Some existing systems do not provide !! 197 Apparently an obscure OEM single-board computer based on the
398 the kernel at boot time. Let's provi !! 198 Typhoon/Tsunami chipset family. Information on it is scanty.
399 kernel, keyed by the dts filename, c <<
400 199
401 Built-in DTBs are generic enough and !! 200 config ALPHA_JENSEN
>> 201 bool "Jensen"
>> 202 help
>> 203 DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
>> 204 of the first-generation Alpha systems. A number of these systems
>> 205 seem to be available on the second- hand market. The Jensen is a
>> 206 floor-standing tower system which originally used a 150MHz 21064 It
>> 207 used programmable logic to interface a 486 EISA I/O bridge to the
>> 208 CPU.
402 209
403 config BUILTIN_DTB_NAME !! 210 config ALPHA_LX164
404 string "Source file for built-in dtb" !! 211 bool "LX164"
405 depends on BUILTIN_DTB <<
406 help 212 help
407 Base name (without suffix, relative !! 213 A technical overview of this board is available at
408 for the DTS file that will be used t !! 214 <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
409 the kernel. <<
410 215
411 config DMI !! 216 config ALPHA_LYNX
412 bool "Enable DMI scanning" !! 217 bool "Lynx"
413 select DMI_SCAN_MACHINE_NON_EFI_FALLBA <<
414 default y <<
415 help 218 help
416 This enables SMBIOS/DMI feature for !! 219 AlphaServer 2100A-based systems.
417 DMI to identify machine quirks. <<
418 220
419 config EFI !! 221 config ALPHA_MARVEL
420 bool "EFI runtime service support" !! 222 bool "Marvel"
421 select UCS2_STRING <<
422 select EFI_RUNTIME_WRAPPERS <<
423 help 223 help
424 This enables the kernel to use EFI r !! 224 AlphaServer ES47 / ES80 / GS1280 based on EV7.
425 available (such as the EFI variable <<
426 225
427 config EFI_STUB !! 226 config ALPHA_MIATA
428 bool "EFI boot stub support" !! 227 bool "Miata"
429 default y <<
430 depends on EFI <<
431 select EFI_GENERIC_STUB <<
432 help 228 help
433 This kernel feature allows the kerne !! 229 The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
434 EFI firmware without the use of a bo !! 230 or 600au).
435 231
436 config SCHED_SMT !! 232 config ALPHA_MIKASA
437 bool "SMT scheduler support" !! 233 bool "Mikasa"
438 depends on SMP <<
439 default y <<
440 help 234 help
441 Improves scheduler's performance whe !! 235 AlphaServer 1000-based Alpha systems.
442 threads in one physical core. <<
443 236
444 config SMP !! 237 config ALPHA_NAUTILUS
445 bool "Multi-Processing support" !! 238 bool "Nautilus"
446 help 239 help
447 This enables support for systems wit !! 240 Alpha systems based on the AMD 751 & ALI 1543C chipsets.
448 a system with only one CPU, say N. I <<
449 than one CPU, say Y. <<
450 241
451 If you say N here, the kernel will r !! 242 config ALPHA_NONAME_CH
452 machines, but will use only one CPU !! 243 bool "Noname"
453 you say Y here, the kernel will run <<
454 uniprocessor machines. On a uniproce <<
455 will run faster if you say N here. <<
456 244
457 See also the SMP-HOWTO available at !! 245 config ALPHA_NORITAKE
>> 246 bool "Noritake"
>> 247 help
>> 248 AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
>> 249 systems.
458 250
459 If you don't know what to do here, s !! 251 config ALPHA_PC164
>> 252 bool "PC164"
460 253
461 config HOTPLUG_CPU !! 254 config ALPHA_P2K
462 bool "Support for hot-pluggable CPUs" !! 255 bool "Platform2000"
463 depends on SMP <<
464 select GENERIC_IRQ_MIGRATION <<
465 help <<
466 Say Y here to allow turning CPUs off <<
467 controlled through /sys/devices/syst <<
468 (Note: power management support will <<
469 automatically on SMP systems. ) <<
470 Say N if you want to disable CPU hot <<
471 256
472 config NR_CPUS !! 257 config ALPHA_RAWHIDE
473 int "Maximum number of CPUs (2-256)" !! 258 bool "Rawhide"
474 range 2 256 <<
475 depends on SMP <<
476 default "64" <<
477 help 259 help
478 This allows you to specify the maxim !! 260 AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
479 kernel will support. !! 261 See HOWTO at
>> 262 <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
480 263
481 config NUMA !! 264 config ALPHA_RUFFIAN
482 bool "NUMA Support" !! 265 bool "Ruffian"
483 select SMP <<
484 help 266 help
485 Say Y to compile the kernel with NUM !! 267 Samsung APC164UX. There is a page on known problems and workarounds
486 support. This option improves perfo !! 268 at <http://www.alphalinux.org/faq/FAQ-11.html>.
487 than one NUMA node; on single node s <<
488 to leave it disabled. <<
489 269
490 config NODES_SHIFT !! 270 config ALPHA_RX164
491 int !! 271 bool "RX164"
492 default "6" <<
493 depends on NUMA <<
494 272
495 config ARCH_FORCE_MAX_ORDER !! 273 config ALPHA_SX164
496 int "Maximum zone order" !! 274 bool "SX164"
497 default "13" if PAGE_SIZE_64KB !! 275
498 default "11" if PAGE_SIZE_16KB !! 276 config ALPHA_SABLE
499 default "10" !! 277 bool "Sable"
500 help 278 help
501 The kernel memory allocator divides !! 279 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. <<
507 280
508 The page size is not necessarily 4KB !! 281 config ALPHA_SHARK
509 when choosing a value for this optio !! 282 bool "Shark"
510 283
511 config ARCH_IOREMAP !! 284 config ALPHA_TAKARA
512 bool "Enable LoongArch DMW-based iorem !! 285 bool "Takara"
513 help 286 help
514 We use generic TLB-based ioremap() b !! 287 Alpha 11164-based OEM single-board computer.
515 protection support. However, you can <<
516 ioremap() for better performance. <<
517 288
518 config ARCH_WRITECOMBINE !! 289 config ALPHA_TITAN
519 bool "Enable WriteCombine (WUC) for io !! 290 bool "Titan"
520 help 291 help
521 LoongArch maintains cache coherency !! 292 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). <<
526 293
527 This means WUC can only used for wri !! 294 config ALPHA_WILDFIRE
528 this option is disabled by default, !! 295 bool "Wildfire"
529 SUC for ioremap(). You can enable th !! 296 help
530 to run on hardware without this bug. !! 297 AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
531 298
532 You can override this setting via wr !! 299 endchoice
533 300
534 config ARCH_STRICT_ALIGN !! 301 # clear all implied options (don't want default values for those):
535 bool "Enable -mstrict-align to prevent !! 302 # Most of these machines have ISA slots; not exactly sure which don't,
>> 303 # and this doesn't activate hordes of code, so do it always.
>> 304 config ISA
>> 305 bool
536 default y 306 default y
537 help 307 help
538 Not all LoongArch cores support h/w !! 308 Find out whether you have ISA slots on your motherboard. ISA is the
539 -mstrict-align build parameter to pr !! 309 name of a bus system, i.e. the way the CPU talks to the other stuff
540 !! 310 inside your box. Other bus systems are PCI, EISA, MicroChannel
541 CPUs with h/w unaligned access suppo !! 311 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
542 Loongson-2K2000/2K3000/3A5000/3C5000 !! 312 newer boards don't support it. If you have ISA, say Y, otherwise N.
543 313
544 CPUs without h/w unaligned access su !! 314 config ISA_DMA_API
545 Loongson-2K500/2K1000. !! 315 bool
>> 316 default y
546 317
547 This option is enabled by default to !! 318 config PCI
548 on all LoongArch systems. But you ca !! 319 bool
549 to run kernel only on systems with h !! 320 depends on !ALPHA_JENSEN
550 order to optimise for performance. !! 321 select GENERIC_PCI_IOMAP
>> 322 default y
>> 323 help
>> 324 Find out whether you have a PCI motherboard. PCI is the name of a
>> 325 bus system, i.e. the way the CPU talks to the other stuff inside
>> 326 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
>> 327 VESA. If you have PCI, say Y, otherwise N.
551 328
552 config CPU_HAS_FPU !! 329 config PCI_DOMAINS
553 bool 330 bool
554 default y 331 default y
555 332
556 config CPU_HAS_LSX !! 333 config PCI_SYSCALL
557 bool "Support for the Loongson SIMD Ex !! 334 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 <<
567 335
568 If unsure, say Y. !! 336 config IOMMU_HELPER
>> 337 def_bool PCI
569 338
570 config CPU_HAS_LASX !! 339 config ALPHA_NONAME
571 bool "Support for the Loongson Advance !! 340 bool
572 depends on CPU_HAS_LSX !! 341 depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
573 depends on AS_HAS_LASX_EXTENSION !! 342 default y
574 help 343 help
575 Loongson Advanced SIMD Extension (LA !! 344 The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
576 registers and a set of SIMD instruct !! 345 UDB). This design was produced by Digital's Technical OEM (TOEM)
577 option is enabled the kernel will su !! 346 group. It uses the 21066 processor running at 166MHz or 233MHz. It
578 vector register contexts. If you kno !! 347 is a baby-AT size, and runs from a standard PC power supply. It has
579 running on CPUs which do not support !! 348 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 !! 349 2 versions, with either PS/2 or large DIN connectors for the
581 the size & complexity of your kernel !! 350 keyboard.
582 351
583 If unsure, say Y. !! 352 config ALPHA_EV4
>> 353 bool
>> 354 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
>> 355 default y if !ALPHA_LYNX
584 356
585 config CPU_HAS_LBT !! 357 config ALPHA_LCA
586 bool "Support for the Loongson Binary !! 358 bool
587 depends on AS_HAS_LBT_EXTENSION !! 359 depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
588 help !! 360 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. <<
593 361
594 If you want to use this feature, suc !! 362 config ALPHA_APECS
595 Translator (LAT), say Y. !! 363 bool
>> 364 depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
>> 365 default y
596 366
597 config CPU_HAS_PREFETCH !! 367 config ALPHA_EB64P
598 bool 368 bool
>> 369 depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
599 default y 370 default y
>> 371 help
>> 372 Uses 21064 or 21064A and APECs. Has ISA and PCI expansion (3 ISA,
>> 373 2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
>> 374 ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
>> 375 (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
>> 376 SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM. PC-AT size.
>> 377 Runs from standard PC power supply.
600 378
601 config ARCH_SUPPORTS_KEXEC !! 379 config ALPHA_EV5
602 def_bool y !! 380 bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
>> 381 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
603 382
604 config ARCH_SUPPORTS_CRASH_DUMP !! 383 config ALPHA_EV4
605 def_bool y !! 384 bool
>> 385 default y if ALPHA_LYNX && !ALPHA_EV5
606 386
607 config ARCH_SELECTS_CRASH_DUMP !! 387 config ALPHA_CIA
608 def_bool y !! 388 bool
609 depends on CRASH_DUMP !! 389 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 !! 390 default y
>> 391
>> 392 config ALPHA_EV56
>> 393 bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
>> 394 default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
>> 395
>> 396 config ALPHA_EV56
>> 397 prompt "EV56 CPU (speed >= 333MHz)?"
>> 398 depends on ALPHA_NORITAKE || ALPHA_PRIMO
611 399
612 config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATIO !! 400 config ALPHA_EV56
613 def_bool CRASH_RESERVE !! 401 prompt "EV56 CPU (speed >= 400MHz)?"
>> 402 depends on ALPHA_RAWHIDE
614 403
615 config RELOCATABLE !! 404 config ALPHA_PRIMO
616 bool "Relocatable kernel" !! 405 bool "EV5 CPU daughtercard (model 5/xxx)?"
617 select ARCH_HAS_RELR !! 406 depends on ALPHA_NORITAKE || ALPHA_MIKASA
618 help 407 help
619 This builds the kernel as a Position !! 408 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. <<
623 409
624 config RANDOMIZE_BASE !! 410 config ALPHA_GAMMA
625 bool "Randomize the address of the ker !! 411 bool "EV5 CPU(s) (model 5/xxx)?"
626 depends on RELOCATABLE !! 412 depends on ALPHA_SABLE
627 help 413 help
628 Randomizes the physical and virtual !! 414 Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
629 kernel image is loaded, as a securi !! 415
630 deters exploit attempts relying on !! 416 config ALPHA_GAMMA
631 of kernel internals. !! 417 bool
>> 418 depends on ALPHA_LYNX
>> 419 default y
>> 420
>> 421 config ALPHA_T2
>> 422 bool
>> 423 depends on ALPHA_SABLE || ALPHA_LYNX
>> 424 default y
632 425
633 The kernel will be offset by up to !! 426 config ALPHA_PYXIS
>> 427 bool
>> 428 depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
>> 429 default y
634 430
635 If unsure, say N. !! 431 config ALPHA_EV6
>> 432 bool
>> 433 depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
>> 434 default y
636 435
637 config RANDOMIZE_BASE_MAX_OFFSET !! 436 config ALPHA_TSUNAMI
638 hex "Maximum KASLR offset" if EXPERT !! 437 bool
639 depends on RANDOMIZE_BASE !! 438 depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
640 range 0x0 0x10000000 !! 439 default y
641 default "0x01000000" !! 440
>> 441 config ALPHA_EV67
>> 442 bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
>> 443 default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
642 help 444 help
643 When KASLR is active, this provides !! 445 Is this a machine based on the EV67 core? If in doubt, select N here
644 be applied to the kernel image. It s !! 446 and the machine will be treated as an EV6.
645 amount of physical RAM available in <<
646 447
647 This is limited by the size of the l !! 448 config ALPHA_MCPCIA
>> 449 bool
>> 450 depends on ALPHA_RAWHIDE
>> 451 default y
648 452
649 source "kernel/livepatch/Kconfig" !! 453 config ALPHA_POLARIS
>> 454 bool
>> 455 depends on ALPHA_RX164
>> 456 default y
>> 457
>> 458 config ALPHA_IRONGATE
>> 459 bool
>> 460 depends on ALPHA_NAUTILUS
>> 461 default y
650 462
651 config PARAVIRT !! 463 config GENERIC_HWEIGHT
652 bool "Enable paravirtualization code" !! 464 bool
653 depends on AS_HAS_LVZ_EXTENSION !! 465 default y if !ALPHA_EV67
>> 466
>> 467 config ALPHA_AVANTI
>> 468 bool
>> 469 depends on ALPHA_XL || ALPHA_AVANTI_CH
>> 470 default y
654 help 471 help
655 This changes the kernel so it can mo !! 472 Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
656 under a hypervisor, potentially impr !! 473 Alphas. Info at
657 over full virtualization. However, !! 474 <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
658 the kernel is theoretically slower a <<
659 475
660 config PARAVIRT_TIME_ACCOUNTING !! 476 config ALPHA_BROKEN_IRQ_MASK
661 bool "Paravirtual steal time accountin !! 477 bool
662 depends on PARAVIRT !! 478 depends on ALPHA_GENERIC || ALPHA_PC164
>> 479 default y
>> 480
>> 481 config VGA_HOSE
>> 482 bool
>> 483 depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
>> 484 default y
663 help 485 help
664 Select this option to enable fine gr !! 486 Support VGA on an arbitrary hose; needed for several platforms
665 accounting. Time spent executing oth !! 487 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 <<
668 488
669 If in doubt, say N here. <<
670 489
671 endmenu !! 490 config ALPHA_SRM
>> 491 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
>> 492 depends on TTY
>> 493 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
>> 494 ---help---
>> 495 There are two different types of booting firmware on Alphas: SRM,
>> 496 which is command line driven, and ARC, which uses menus and arrow
>> 497 keys. Details about the Linux/Alpha booting process are contained in
>> 498 the Linux/Alpha FAQ, accessible on the WWW from
>> 499 <http://www.alphalinux.org/>.
672 500
673 config ARCH_SELECT_MEMORY_MODEL !! 501 The usual way to load Linux on an Alpha machine is to use MILO
674 def_bool y !! 502 (a bootloader that lets you pass command line parameters to the
>> 503 kernel just like lilo does for the x86 architecture) which can be
>> 504 loaded either from ARC or can be installed directly as a permanent
>> 505 firmware replacement from floppy (which requires changing a certain
>> 506 jumper on the motherboard). If you want to do either of these, say N
>> 507 here. If MILO doesn't work on your system (true for Jensen
>> 508 motherboards), you can bypass it altogether and boot Linux directly
>> 509 from an SRM console; say Y here in order to do that. Note that you
>> 510 won't be able to boot from an IDE disk using SRM.
675 511
676 config ARCH_FLATMEM_ENABLE !! 512 If unsure, say N.
677 def_bool y <<
678 depends on !NUMA <<
679 513
680 config ARCH_SPARSEMEM_ENABLE !! 514 config EISA
>> 515 bool
>> 516 depends on ALPHA_GENERIC || ALPHA_JENSEN || ALPHA_ALCOR || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_RAWHIDE
>> 517 default y
>> 518
>> 519 config ARCH_MAY_HAVE_PC_FDC
681 def_bool y 520 def_bool y
682 select SPARSEMEM_VMEMMAP_ENABLE !! 521
>> 522 config SMP
>> 523 bool "Symmetric multi-processing support"
>> 524 depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
>> 525 select USE_GENERIC_SMP_HELPERS
>> 526 ---help---
>> 527 This enables support for systems with more than one CPU. If you have
>> 528 a system with only one CPU, like most personal computers, say N. If
>> 529 you have a system with more than one CPU, say Y.
>> 530
>> 531 If you say N here, the kernel will run on single and multiprocessor
>> 532 machines, but will use only one CPU of a multiprocessor machine. If
>> 533 you say Y here, the kernel will run on many, but not all,
>> 534 singleprocessor machines. On a singleprocessor machine, the kernel
>> 535 will run faster if you say N here.
>> 536
>> 537 See also the SMP-HOWTO available at
>> 538 <http://www.tldp.org/docs.html#howto>.
>> 539
>> 540 If you don't know what to do here, say N.
>> 541
>> 542 config HAVE_DEC_LOCK
>> 543 bool
>> 544 depends on SMP
>> 545 default y
>> 546
>> 547 config NR_CPUS
>> 548 int "Maximum number of CPUs (2-32)"
>> 549 range 2 32
>> 550 depends on SMP
>> 551 default "32" if ALPHA_GENERIC || ALPHA_MARVEL
>> 552 default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
683 help 553 help
684 Say Y to support efficient handling !! 554 MARVEL support can handle a maximum of 32 CPUs, all the others
>> 555 with working support have a maximum of 4 CPUs.
>> 556
>> 557 config ARCH_DISCONTIGMEM_ENABLE
>> 558 bool "Discontiguous Memory Support"
>> 559 help
>> 560 Say Y to support efficient handling of discontiguous physical memory,
685 for architectures which are either N 561 for architectures which are either NUMA (Non-Uniform Memory Access)
686 or have huge holes in the physical a 562 or have huge holes in the physical address space for other reasons.
687 See <file:Documentation/mm/numa.rst> !! 563 See <file:Documentation/vm/numa> for more.
688 564
689 config ARCH_MEMORY_PROBE !! 565 source "mm/Kconfig"
690 def_bool y <<
691 depends on MEMORY_HOTPLUG <<
692 566
693 config MMU !! 567 config NUMA
694 bool !! 568 bool "NUMA Support (EXPERIMENTAL)"
695 default y !! 569 depends on DISCONTIGMEM && BROKEN
>> 570 help
>> 571 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
>> 572 Access). This option is for configuring high-end multiprocessor
>> 573 server machines. If in doubt, say N.
696 574
697 config ARCH_MMAP_RND_BITS_MIN !! 575 config NODES_SHIFT
698 default 12 !! 576 int
>> 577 default "7"
>> 578 depends on NEED_MULTIPLE_NODES
699 579
700 config ARCH_MMAP_RND_BITS_MAX !! 580 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
701 default 18 !! 581 config ALPHA_LARGE_VMALLOC
>> 582 bool
>> 583 ---help---
>> 584 Process creation and other aspects of virtual memory management can
>> 585 be streamlined if we restrict the kernel to one PGD for all vmalloc
>> 586 allocations. This equates to about 8GB.
>> 587
>> 588 Under normal circumstances, this is so far and above what is needed
>> 589 as to be laughable. However, there are certain applications (such
>> 590 as benchmark-grade in-kernel web serving) that can make use of as
>> 591 much vmalloc space as is available.
>> 592
>> 593 Say N unless you know you need gobs and gobs of vmalloc space.
>> 594
>> 595 config VERBOSE_MCHECK
>> 596 bool "Verbose Machine Checks"
>> 597
>> 598 config VERBOSE_MCHECK_ON
>> 599 int "Verbose Printing Mode (0=off, 1=on, 2=all)"
>> 600 depends on VERBOSE_MCHECK
>> 601 default 1
>> 602 ---help---
>> 603 This option allows the default printing mode to be set, and then
>> 604 possibly overridden by a boot command argument.
>> 605
>> 606 For example, if one wanted the option of printing verbose
>> 607 machine checks, but wanted the default to be as if verbose
>> 608 machine check printing was turned off, then one would choose
>> 609 the printing mode to be 0. Then, upon reboot, one could add
>> 610 the boot command line "verbose_mcheck=1" to get the normal
>> 611 verbose machine check printing, or "verbose_mcheck=2" to get
>> 612 the maximum information available.
702 613
703 config ARCH_SUPPORTS_UPROBES !! 614 Take the default (1) unless you want more control or more info.
704 def_bool y <<
705 615
706 config KASAN_SHADOW_OFFSET !! 616 config HZ
707 hex !! 617 int
708 default 0x0 !! 618 default 1200 if ALPHA_RAWHIDE
709 depends on KASAN !! 619 default 1024
710 620
711 menu "Power management options" !! 621 source "drivers/pci/Kconfig"
>> 622 source "drivers/eisa/Kconfig"
712 623
713 config ARCH_SUSPEND_POSSIBLE !! 624 source "drivers/pcmcia/Kconfig"
714 def_bool y <<
715 625
716 config ARCH_HIBERNATION_POSSIBLE !! 626 config SRM_ENV
717 def_bool y !! 627 tristate "SRM environment through procfs"
>> 628 depends on PROC_FS
>> 629 ---help---
>> 630 If you enable this option, a subdirectory inside /proc called
>> 631 /proc/srm_environment will give you access to the all important
>> 632 SRM environment variables (those which have a name) and also
>> 633 to all others (by their internal number).
>> 634
>> 635 SRM is something like a BIOS for Alpha machines. There are some
>> 636 other such BIOSes, like AlphaBIOS, which this driver cannot
>> 637 support (hey, that's not SRM!).
>> 638
>> 639 Despite the fact that this driver doesn't work on all Alphas (but
>> 640 only on those which have SRM as their firmware), it's save to
>> 641 build it even if your particular machine doesn't know about SRM
>> 642 (or if you intend to compile a generic kernel). It will simply
>> 643 not create those subdirectory in /proc (and give you some warning,
>> 644 of course).
>> 645
>> 646 This driver is also available as a module and will be called
>> 647 srm_env then.
718 648
719 source "kernel/power/Kconfig" !! 649 source "fs/Kconfig.binfmt"
720 source "drivers/acpi/Kconfig" <<
721 source "drivers/cpufreq/Kconfig" <<
722 650
723 endmenu 651 endmenu
724 652
725 source "arch/loongarch/kvm/Kconfig" !! 653 source "net/Kconfig"
>> 654
>> 655 source "drivers/Kconfig"
>> 656
>> 657 source "fs/Kconfig"
>> 658
>> 659 source "arch/alpha/Kconfig.debug"
>> 660
>> 661 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
>> 662 # but we also need it if VGA_HOSE is set
>> 663 config DUMMY_CONSOLE
>> 664 bool
>> 665 depends on VGA_HOSE
>> 666 default y
>> 667
>> 668 source "security/Kconfig"
>> 669
>> 670 source "crypto/Kconfig"
>> 671
>> 672 source "lib/Kconfig"
>> 673
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.