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