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