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