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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
4d66bcc7 KS |
2 | config PGTABLE_LEVELS |
3 | int "Page Table Levels" if !IA64_PAGE_SIZE_64KB | |
4 | range 3 4 if !IA64_PAGE_SIZE_64KB | |
5 | default 3 | |
6 | ||
1da177e4 LT |
7 | menu "Processor type and features" |
8 | ||
9 | config IA64 | |
10 | bool | |
468bcf08 | 11 | select ARCH_MIGHT_HAVE_PC_PARPORT |
bbc4e596 | 12 | select ARCH_MIGHT_HAVE_PC_SERIO |
fc5bad03 | 13 | select ACPI |
df41017e | 14 | select ACPI_NUMA if NUMA |
fc5bad03 | 15 | select ARCH_SUPPORTS_ACPI |
6e0a0ea1 | 16 | select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI |
46ba51ea | 17 | select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI |
fc5bad03 | 18 | select FORCE_PCI |
2eac9c2d | 19 | select PCI_DOMAINS if PCI |
df41017e | 20 | select PCI_MSI |
20f1b79d | 21 | select PCI_SYSCALL if PCI |
2ff2b7ec | 22 | select HAVE_ASM_MODVERSIONS |
0773a6cf | 23 | select HAVE_UNSTABLE_SCHED_CLOCK |
5f56a5df | 24 | select HAVE_EXIT_THREAD |
ec7748b5 | 25 | select HAVE_IDE |
42d4b839 | 26 | select HAVE_OPROFILE |
3f550096 | 27 | select HAVE_KPROBES |
9edddaa2 | 28 | select HAVE_KRETPROBES |
a14a07b8 SL |
29 | select HAVE_FTRACE_MCOUNT_RECORD |
30 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) | |
d3e75ff1 | 31 | select HAVE_FUNCTION_TRACER |
6035d9db | 32 | select TTY |
9690ad03 | 33 | select HAVE_ARCH_TRACEHOOK |
98e4ae8a | 34 | select HAVE_MEMBLOCK_NODE_MAP |
b952741c | 35 | select HAVE_VIRT_CPU_ACCOUNTING |
34dc0ea6 | 36 | select DMA_NONCOHERENT_MMAP |
df41017e | 37 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
4febd95a | 38 | select VIRT_TO_BUS |
c5e66129 TG |
39 | select GENERIC_IRQ_PROBE |
40 | select GENERIC_PENDING_IRQ if SMP | |
e3d78122 | 41 | select GENERIC_IRQ_SHOW |
4debd723 | 42 | select GENERIC_IRQ_LEGACY |
df013ffb | 43 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
4673ca8e | 44 | select GENERIC_IOMAP |
13583bf1 | 45 | select GENERIC_SMP_IDLE_THREAD |
0500871f | 46 | select ARCH_TASK_STRUCT_ON_STACK |
f5e10287 | 47 | select ARCH_TASK_STRUCT_ALLOCATOR |
b235beea | 48 | select ARCH_THREAD_STACK_ALLOCATOR |
21b19710 | 49 | select ARCH_CLOCKSOURCE_DATA |
d4d1fc61 | 50 | select GENERIC_TIME_VSYSCALL |
df41017e | 51 | select SWIOTLB |
b6fca725 | 52 | select SYSCTL_ARCH_UNALIGN_NO_WARN |
786d35d4 DH |
53 | select HAVE_MOD_ARCH_SPECIFIC |
54 | select MODULES_USE_ELF_RELA | |
71c7356f | 55 | select ARCH_USE_CMPXCHG_LOCKREF |
7a017721 | 56 | select HAVE_ARCH_AUDITSYSCALL |
f616ab59 | 57 | select NEED_DMA_MAP_STATE |
86596f0a | 58 | select NEED_SG_DMA_LENGTH |
df41017e | 59 | select NUMA if !FLATMEM |
1da177e4 LT |
60 | default y |
61 | help | |
62 | The Itanium Processor Family is Intel's 64-bit successor to | |
63 | the 32-bit X86 line. The IA-64 Linux project has a home | |
64 | page at <http://www.linuxia64.org/> and a mailing list at | |
65 | <linux-ia64@vger.kernel.org>. | |
66 | ||
67 | config 64BIT | |
68 | bool | |
9f271d57 | 69 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
70 | default y |
71 | ||
d5c23ebf | 72 | config ZONE_DMA32 |
09ae1f58 | 73 | def_bool y |
66701b14 | 74 | |
1da177e4 LT |
75 | config MMU |
76 | bool | |
77 | default y | |
78 | ||
85718fae TL |
79 | config STACKTRACE_SUPPORT |
80 | def_bool y | |
81 | ||
95c354fe | 82 | config GENERIC_LOCKBREAK |
2c86963b | 83 | def_bool n |
95c354fe | 84 | |
d9c23400 MG |
85 | config HUGETLB_PAGE_SIZE_VARIABLE |
86 | bool | |
87 | depends on HUGETLB_PAGE | |
88 | default y | |
89 | ||
1da177e4 LT |
90 | config GENERIC_CALIBRATE_DELAY |
91 | bool | |
92 | default y | |
93 | ||
988c388a | 94 | config HAVE_SETUP_PER_CPU_AREA |
b32ef636 | 95 | def_bool y |
96 | ||
3ed3bce8 MD |
97 | config DMI |
98 | bool | |
99 | default y | |
cf074402 | 100 | select DMI_SCAN_MACHINE_NON_EFI_FALLBACK |
3ed3bce8 | 101 | |
1da177e4 LT |
102 | config EFI |
103 | bool | |
a614e192 | 104 | select UCS2_STRING |
1da177e4 LT |
105 | default y |
106 | ||
ae1e9130 | 107 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
108 | bool |
109 | default y | |
110 | ||
f14f75b8 JS |
111 | config IA64_UNCACHED_ALLOCATOR |
112 | bool | |
113 | select GENERIC_ALLOCATOR | |
114 | ||
46cf98cd VP |
115 | config ARCH_USES_PG_UNCACHED |
116 | def_bool y | |
117 | depends on IA64_UNCACHED_ALLOCATOR | |
118 | ||
e65e1fc2 AV |
119 | config AUDIT_ARCH |
120 | bool | |
121 | default y | |
122 | ||
1da177e4 LT |
123 | choice |
124 | prompt "Processor type" | |
125 | default ITANIUM | |
126 | ||
127 | config ITANIUM | |
128 | bool "Itanium" | |
129 | help | |
130 | Select your IA-64 processor type. The default is Itanium. | |
131 | This choice is safe for all IA-64 systems, but may not perform | |
132 | optimally on systems with, say, Itanium 2 or newer processors. | |
133 | ||
134 | config MCKINLEY | |
135 | bool "Itanium 2" | |
136 | help | |
137 | Select this to configure for an Itanium 2 (McKinley) processor. | |
138 | ||
139 | endchoice | |
140 | ||
141 | choice | |
142 | prompt "Kernel page size" | |
143 | default IA64_PAGE_SIZE_16KB | |
144 | ||
145 | config IA64_PAGE_SIZE_4KB | |
146 | bool "4KB" | |
147 | help | |
148 | This lets you select the page size of the kernel. For best IA-64 | |
149 | performance, a page size of 8KB or 16KB is recommended. For best | |
150 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
151 | majority of IA-32 binaries work perfectly fine with a larger page | |
152 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
153 | be selected. | |
154 | ||
155 | 4KB For best IA-32 compatibility | |
156 | 8KB For best IA-64 performance | |
157 | 16KB For best IA-64 performance | |
158 | 64KB Requires Itanium 2 or newer processor. | |
159 | ||
160 | If you don't know what to do, choose 16KB. | |
161 | ||
162 | config IA64_PAGE_SIZE_8KB | |
163 | bool "8KB" | |
164 | ||
165 | config IA64_PAGE_SIZE_16KB | |
166 | bool "16KB" | |
167 | ||
168 | config IA64_PAGE_SIZE_64KB | |
169 | depends on !ITANIUM | |
170 | bool "64KB" | |
171 | ||
172 | endchoice | |
173 | ||
8636a1f9 | 174 | source "kernel/Kconfig.hz" |
b5d23e5b | 175 | |
1da177e4 LT |
176 | config IA64_BRL_EMU |
177 | bool | |
178 | depends on ITANIUM | |
179 | default y | |
180 | ||
181 | # align cache-sensitive data to 128 bytes | |
182 | config IA64_L1_CACHE_SHIFT | |
183 | int | |
184 | default "7" if MCKINLEY | |
185 | default "6" if ITANIUM | |
186 | ||
df41017e CH |
187 | config IA64_SGI_UV |
188 | bool "SGI-UV support" | |
189 | help | |
190 | Selecting this option will add specific support for running on SGI | |
191 | UV based systems. If you have an SGI UV system or are building a | |
192 | distro kernel, select this option. | |
193 | ||
194 | config IA64_HP_SBA_IOMMU | |
195 | bool "HP SBA IOMMU support" | |
196 | default y | |
197 | help | |
198 | Say Y here to add support for the SBA IOMMU found on HP zx1 and | |
199 | sx1000 systems. If you're unsure, answer Y. | |
200 | ||
1da177e4 LT |
201 | config IA64_CYCLONE |
202 | bool "Cyclone (EXA) Time Source support" | |
203 | help | |
204 | Say Y here to enable support for IBM EXA Cyclone time source. | |
205 | If you're unsure, answer N. | |
206 | ||
1da177e4 | 207 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
208 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
209 | range 11 17 if !HUGETLB_PAGE | |
210 | default "17" if HUGETLB_PAGE | |
211 | default "11" | |
1da177e4 LT |
212 | |
213 | config SMP | |
214 | bool "Symmetric multi-processing support" | |
215 | help | |
216 | This enables support for systems with more than one CPU. If you have | |
217 | a system with only one CPU, say N. If you have a system with more | |
218 | than one CPU, say Y. | |
219 | ||
220 | If you say N here, the kernel will run on single and multiprocessor | |
221 | systems, but will use only one CPU of a multiprocessor system. If | |
222 | you say Y here, the kernel will run on many, but not all, | |
223 | single processor systems. On a single processor system, the kernel | |
224 | will run faster if you say N here. | |
225 | ||
03502faa AB |
226 | See also the SMP-HOWTO available at |
227 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
228 | |
229 | If you don't know what to do here, say N. | |
230 | ||
231 | config NR_CPUS | |
d1339df1 RH |
232 | int "Maximum number of CPUs (2-4096)" |
233 | range 2 4096 | |
1da177e4 | 234 | depends on SMP |
d1339df1 | 235 | default "4096" |
1da177e4 LT |
236 | help |
237 | You should set this to the number of CPUs in your system, but | |
238 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
239 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
240 | than 64 will cause the use of a CPU mask array, causing a small | |
241 | performance hit. | |
242 | ||
243 | config HOTPLUG_CPU | |
48a9240c KC |
244 | bool "Support for hot-pluggable CPUs" |
245 | depends on SMP | |
1da177e4 LT |
246 | default n |
247 | ---help--- | |
248 | Say Y here to experiment with turning CPUs off and on. CPUs | |
249 | can be controlled through /sys/devices/system/cpu/cpu#. | |
250 | Say N if you want to disable CPU hotplug. | |
251 | ||
cc57637b YG |
252 | config ARCH_ENABLE_MEMORY_HOTPLUG |
253 | def_bool y | |
254 | ||
0c0e6195 KH |
255 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
256 | def_bool y | |
257 | ||
7a9bdd88 SS |
258 | config SCHED_SMT |
259 | bool "SMT scheduler support" | |
260 | depends on SMP | |
7a9bdd88 SS |
261 | help |
262 | Improves the CPU scheduler's decision making when dealing with | |
263 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
264 | overhead in some places. If unsure say N here. | |
265 | ||
ff741906 AR |
266 | config PERMIT_BSP_REMOVE |
267 | bool "Support removal of Bootstrap Processor" | |
268 | depends on HOTPLUG_CPU | |
269 | default n | |
270 | ---help--- | |
271 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU | |
272 | support. | |
273 | ||
274 | config FORCE_CPEI_RETARGET | |
25985edc | 275 | bool "Force assumption that CPEI can be re-targeted" |
ff741906 AR |
276 | depends on PERMIT_BSP_REMOVE |
277 | default n | |
278 | ---help--- | |
25985edc | 279 | Say Y if you need to force the assumption that CPEI can be re-targeted to |
ff741906 AR |
280 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
281 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
282 | This option it useful to enable this feature on older BIOS's as well. | |
283 | You can also enable this by using boot command line option force_cpei=1. | |
284 | ||
da9577c5 BP |
285 | config ARCH_SELECT_MEMORY_MODEL |
286 | def_bool y | |
287 | ||
288 | config ARCH_DISCONTIGMEM_ENABLE | |
289 | def_bool y | |
290 | help | |
291 | Say Y to support efficient handling of discontiguous physical memory, | |
292 | for architectures which are either NUMA (Non-Uniform Memory Access) | |
293 | or have huge holes in the physical address space for other reasons. | |
ad56b738 | 294 | See <file:Documentation/vm/numa.rst> for more. |
da9577c5 BP |
295 | |
296 | config ARCH_FLATMEM_ENABLE | |
297 | def_bool y | |
298 | ||
299 | config ARCH_SPARSEMEM_ENABLE | |
300 | def_bool y | |
301 | depends on ARCH_DISCONTIGMEM_ENABLE | |
ef229c5a | 302 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 BP |
303 | |
304 | config ARCH_DISCONTIGMEM_DEFAULT | |
df41017e | 305 | def_bool y |
da9577c5 BP |
306 | depends on ARCH_DISCONTIGMEM_ENABLE |
307 | ||
308 | config NUMA | |
309 | bool "NUMA support" | |
fc5bad03 | 310 | depends on !FLATMEM |
a2cbfd46 | 311 | select SMP |
da9577c5 BP |
312 | help |
313 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
314 | Access). This option is for configuring high-end multiprocessor | |
315 | server systems. If in doubt, say N. | |
316 | ||
c80d79d7 YG |
317 | config NODES_SHIFT |
318 | int "Max num nodes shift(3-10)" | |
319 | range 3 10 | |
c57d68ca | 320 | default "10" |
c80d79d7 YG |
321 | depends on NEED_MULTIPLE_NODES |
322 | help | |
323 | This option specifies the maximum number of nodes in your SSI system. | |
324 | MAX_NUMNODES will be 2^(This value). | |
325 | If in doubt, use the default. | |
326 | ||
da9577c5 BP |
327 | # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. |
328 | # VIRTUAL_MEM_MAP has been retained for historical reasons. | |
329 | config VIRTUAL_MEM_MAP | |
330 | bool "Virtual mem map" | |
331 | depends on !SPARSEMEM | |
fc5bad03 | 332 | default y |
da9577c5 BP |
333 | help |
334 | Say Y to compile the kernel with support for a virtual mem map. | |
335 | This code also only takes effect if a memory hole of greater than | |
336 | 1 Gb is found during boot. You must turn this option on if you | |
337 | require the DISCONTIGMEM option for your machine. If you are | |
338 | unsure, say Y. | |
339 | ||
340 | config HOLES_IN_ZONE | |
341 | bool | |
342 | default y if VIRTUAL_MEM_MAP | |
343 | ||
344 | config HAVE_ARCH_EARLY_PFN_TO_NID | |
334f85b6 | 345 | def_bool NUMA && SPARSEMEM |
da9577c5 | 346 | |
10ad400b YG |
347 | config HAVE_ARCH_NODEDATA_EXTENSION |
348 | def_bool y | |
349 | depends on NUMA | |
350 | ||
3bccd996 LS |
351 | config USE_PERCPU_NUMA_NODE_ID |
352 | def_bool y | |
353 | depends on NUMA | |
354 | ||
fd1197f1 | 355 | config HAVE_MEMORYLESS_NODES |
25106000 | 356 | def_bool NUMA |
fd1197f1 | 357 | |
9492587c KH |
358 | config ARCH_PROC_KCORE_TEXT |
359 | def_bool y | |
360 | depends on PROC_KCORE | |
361 | ||
1da177e4 LT |
362 | config IA64_MCA_RECOVERY |
363 | tristate "MCA recovery from errors other than TLB." | |
364 | ||
365 | config PERFMON | |
366 | bool "Performance monitor support" | |
d2b2250c | 367 | depends on BROKEN |
1da177e4 LT |
368 | help |
369 | Selects whether support for the IA-64 performance monitor hardware | |
370 | is included in the kernel. This makes some kernel data-structures a | |
371 | little bigger and slows down execution a bit, but it is generally | |
372 | a good idea to turn this on. If you're unsure, say Y. | |
373 | ||
374 | config IA64_PALINFO | |
375 | tristate "/proc/pal support" | |
376 | help | |
377 | If you say Y here, you are able to get PAL (Processor Abstraction | |
378 | Layer) information in /proc/pal. This contains useful information | |
379 | about the processors in your systems, such as cache and TLB sizes | |
380 | and the PAL firmware version in use. | |
381 | ||
382 | To use this option, you have to ensure that the "/proc file system | |
383 | support" (CONFIG_PROC_FS) is enabled, too. | |
384 | ||
e9ef08bd FY |
385 | config IA64_MC_ERR_INJECT |
386 | tristate "MC error injection support" | |
387 | help | |
01dd2fbf ML |
388 | Adds support for MC error injection. If enabled, the kernel |
389 | will provide a sysfs interface for user applications to | |
390 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
391 | This is a useful tool for MCA testing. |
392 | ||
393 | If you're unsure, do not select this option. | |
394 | ||
2ab561a1 DMT |
395 | config IA64_ESI |
396 | bool "ESI (Extensible SAL Interface) support" | |
397 | help | |
398 | If you say Y here, support is built into the kernel to | |
399 | make ESI calls. ESI calls are used to support vendor-specific | |
400 | firmware extensions, such as the ability to inject memory-errors | |
401 | for test-purposes. If you're unsure, say N. | |
402 | ||
28eda5b8 BH |
403 | config IA64_HP_AML_NFW |
404 | bool "Support ACPI AML calls to native firmware" | |
405 | help | |
406 | This driver installs a global ACPI Operation Region handler for | |
407 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
408 | native firmware functions. The driver installs the OpRegion | |
409 | handler if there is an HPQ5001 device or if the user supplies | |
410 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
411 | kernel command line option. | |
412 | ||
a7956113 | 413 | config KEXEC |
48a9240c | 414 | bool "kexec system call" |
fc5bad03 | 415 | depends on !SMP || HOTPLUG_CPU |
2965faa5 | 416 | select KEXEC_CORE |
a7956113 ZN |
417 | help |
418 | kexec is a system call that implements the ability to shutdown your | |
419 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 420 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
421 | you can start any kernel with it, not just Linux. |
422 | ||
01dd2fbf | 423 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
424 | |
425 | It is an ongoing process to be certain the hardware in a machine | |
426 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
427 | initially work for you. As of this writing the exact hardware |
428 | interface is strongly in flux, so no good recommendation can be | |
429 | made. | |
a7956113 ZN |
430 | |
431 | config CRASH_DUMP | |
fb86611f | 432 | bool "kernel crash dumps" |
fc5bad03 | 433 | depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU) |
a7956113 ZN |
434 | help |
435 | Generate crash dump after being started by kexec. | |
436 | ||
1da177e4 LT |
437 | source "drivers/firmware/Kconfig" |
438 | ||
1da177e4 LT |
439 | endmenu |
440 | ||
1547a012 | 441 | menu "Power management and ACPI options" |
1da177e4 | 442 | |
eb7b6b32 | 443 | source "kernel/power/Kconfig" |
1da177e4 LT |
444 | |
445 | source "drivers/acpi/Kconfig" | |
446 | ||
4db8699b | 447 | if PM |
ab423e43 VK |
448 | menu "CPU Frequency scaling" |
449 | source "drivers/cpufreq/Kconfig" | |
450 | endmenu | |
4db8699b VP |
451 | endif |
452 | ||
1da177e4 LT |
453 | endmenu |
454 | ||
1a4b0fc5 JS |
455 | config MSPEC |
456 | tristate "Memory special operations driver" | |
457 | depends on IA64 | |
458 | select IA64_UNCACHED_ALLOCATOR | |
459 | help | |
460 | If you have an ia64 and you want to enable memory special | |
461 | operations support (formerly known as fetchop), say Y here, | |
462 | otherwise say N. |