Commit | Line | Data |
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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 | |
b62a8486 | 11 | select ARCH_BINFMT_ELF_EXTRA_PHDRS |
abdaf11a | 12 | select ARCH_HAS_DMA_MARK_CLEAN |
e6226997 AB |
13 | select ARCH_HAS_STRNCPY_FROM_USER |
14 | select ARCH_HAS_STRNLEN_USER | |
468bcf08 | 15 | select ARCH_MIGHT_HAVE_PC_PARPORT |
bbc4e596 | 16 | select ARCH_MIGHT_HAVE_PC_SERIO |
fc5bad03 | 17 | select ACPI |
df41017e | 18 | select ACPI_NUMA if NUMA |
91024b3c AK |
19 | select ARCH_ENABLE_MEMORY_HOTPLUG |
20 | select ARCH_ENABLE_MEMORY_HOTREMOVE | |
fc5bad03 | 21 | select ARCH_SUPPORTS_ACPI |
6e0a0ea1 | 22 | select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI |
46ba51ea | 23 | select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI |
fc5bad03 | 24 | select FORCE_PCI |
2eac9c2d | 25 | select PCI_DOMAINS if PCI |
df41017e | 26 | select PCI_MSI |
20f1b79d | 27 | select PCI_SYSCALL if PCI |
2ff2b7ec | 28 | select HAVE_ASM_MODVERSIONS |
0773a6cf | 29 | select HAVE_UNSTABLE_SCHED_CLOCK |
5f56a5df | 30 | select HAVE_EXIT_THREAD |
3f550096 | 31 | select HAVE_KPROBES |
9edddaa2 | 32 | select HAVE_KRETPROBES |
a14a07b8 SL |
33 | select HAVE_FTRACE_MCOUNT_RECORD |
34 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) | |
d3e75ff1 | 35 | select HAVE_FUNCTION_TRACER |
7ecd19cf | 36 | select HAVE_SETUP_PER_CPU_AREA |
6035d9db | 37 | select TTY |
9690ad03 | 38 | select HAVE_ARCH_TRACEHOOK |
a257cacc | 39 | select HAVE_FUNCTION_DESCRIPTORS |
b952741c | 40 | select HAVE_VIRT_CPU_ACCOUNTING |
4bfb68a0 | 41 | select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE |
c5e66129 TG |
42 | select GENERIC_IRQ_PROBE |
43 | select GENERIC_PENDING_IRQ if SMP | |
e3d78122 | 44 | select GENERIC_IRQ_SHOW |
4debd723 | 45 | select GENERIC_IRQ_LEGACY |
df013ffb | 46 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
4673ca8e | 47 | select GENERIC_IOMAP |
13583bf1 | 48 | select GENERIC_SMP_IDLE_THREAD |
0500871f | 49 | select ARCH_TASK_STRUCT_ON_STACK |
f5e10287 | 50 | select ARCH_TASK_STRUCT_ALLOCATOR |
b235beea | 51 | select ARCH_THREAD_STACK_ALLOCATOR |
21b19710 | 52 | select ARCH_CLOCKSOURCE_DATA |
d4d1fc61 | 53 | select GENERIC_TIME_VSYSCALL |
2b49ddce | 54 | select LEGACY_TIMER_TICK |
df41017e | 55 | select SWIOTLB |
b6fca725 | 56 | select SYSCTL_ARCH_UNALIGN_NO_WARN |
786d35d4 DH |
57 | select HAVE_MOD_ARCH_SPECIFIC |
58 | select MODULES_USE_ELF_RELA | |
71c7356f | 59 | select ARCH_USE_CMPXCHG_LOCKREF |
7a017721 | 60 | select HAVE_ARCH_AUDITSYSCALL |
f616ab59 | 61 | select NEED_DMA_MAP_STATE |
86596f0a | 62 | select NEED_SG_DMA_LENGTH |
df41017e | 63 | select NUMA if !FLATMEM |
981aa1d3 | 64 | select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
63703f37 | 65 | select ZONE_DMA32 |
1da177e4 LT |
66 | default y |
67 | help | |
68 | The Itanium Processor Family is Intel's 64-bit successor to | |
69 | the 32-bit X86 line. The IA-64 Linux project has a home | |
70 | page at <http://www.linuxia64.org/> and a mailing list at | |
71 | <linux-ia64@vger.kernel.org>. | |
72 | ||
73 | config 64BIT | |
74 | bool | |
9f271d57 | 75 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
76 | default y |
77 | ||
78 | config MMU | |
79 | bool | |
80 | default y | |
81 | ||
85718fae TL |
82 | config STACKTRACE_SUPPORT |
83 | def_bool y | |
84 | ||
95c354fe | 85 | config GENERIC_LOCKBREAK |
2c86963b | 86 | def_bool n |
95c354fe | 87 | |
1da177e4 LT |
88 | config GENERIC_CALIBRATE_DELAY |
89 | bool | |
90 | default y | |
91 | ||
3ed3bce8 MD |
92 | config DMI |
93 | bool | |
94 | default y | |
cf074402 | 95 | select DMI_SCAN_MACHINE_NON_EFI_FALLBACK |
3ed3bce8 | 96 | |
1da177e4 LT |
97 | config EFI |
98 | bool | |
a614e192 | 99 | select UCS2_STRING |
1da177e4 LT |
100 | default y |
101 | ||
ae1e9130 | 102 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
103 | bool |
104 | default y | |
105 | ||
f14f75b8 JS |
106 | config IA64_UNCACHED_ALLOCATOR |
107 | bool | |
108 | select GENERIC_ALLOCATOR | |
109 | ||
46cf98cd VP |
110 | config ARCH_USES_PG_UNCACHED |
111 | def_bool y | |
112 | depends on IA64_UNCACHED_ALLOCATOR | |
113 | ||
e65e1fc2 AV |
114 | config AUDIT_ARCH |
115 | bool | |
116 | default y | |
117 | ||
1da177e4 LT |
118 | choice |
119 | prompt "Processor type" | |
120 | default ITANIUM | |
121 | ||
122 | config ITANIUM | |
123 | bool "Itanium" | |
124 | help | |
125 | Select your IA-64 processor type. The default is Itanium. | |
126 | This choice is safe for all IA-64 systems, but may not perform | |
127 | optimally on systems with, say, Itanium 2 or newer processors. | |
128 | ||
129 | config MCKINLEY | |
130 | bool "Itanium 2" | |
131 | help | |
132 | Select this to configure for an Itanium 2 (McKinley) processor. | |
133 | ||
134 | endchoice | |
135 | ||
136 | choice | |
137 | prompt "Kernel page size" | |
138 | default IA64_PAGE_SIZE_16KB | |
139 | ||
140 | config IA64_PAGE_SIZE_4KB | |
141 | bool "4KB" | |
142 | help | |
143 | This lets you select the page size of the kernel. For best IA-64 | |
144 | performance, a page size of 8KB or 16KB is recommended. For best | |
145 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
146 | majority of IA-32 binaries work perfectly fine with a larger page | |
147 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
148 | be selected. | |
149 | ||
150 | 4KB For best IA-32 compatibility | |
151 | 8KB For best IA-64 performance | |
152 | 16KB For best IA-64 performance | |
153 | 64KB Requires Itanium 2 or newer processor. | |
154 | ||
155 | If you don't know what to do, choose 16KB. | |
156 | ||
157 | config IA64_PAGE_SIZE_8KB | |
158 | bool "8KB" | |
159 | ||
160 | config IA64_PAGE_SIZE_16KB | |
161 | bool "16KB" | |
162 | ||
163 | config IA64_PAGE_SIZE_64KB | |
164 | depends on !ITANIUM | |
165 | bool "64KB" | |
166 | ||
167 | endchoice | |
168 | ||
8636a1f9 | 169 | source "kernel/Kconfig.hz" |
b5d23e5b | 170 | |
1da177e4 LT |
171 | config IA64_BRL_EMU |
172 | bool | |
173 | depends on ITANIUM | |
174 | default y | |
175 | ||
176 | # align cache-sensitive data to 128 bytes | |
177 | config IA64_L1_CACHE_SHIFT | |
178 | int | |
179 | default "7" if MCKINLEY | |
180 | default "6" if ITANIUM | |
181 | ||
df41017e CH |
182 | config IA64_SGI_UV |
183 | bool "SGI-UV support" | |
184 | help | |
185 | Selecting this option will add specific support for running on SGI | |
186 | UV based systems. If you have an SGI UV system or are building a | |
187 | distro kernel, select this option. | |
188 | ||
189 | config IA64_HP_SBA_IOMMU | |
190 | bool "HP SBA IOMMU support" | |
2f9237d4 | 191 | select DMA_OPS |
df41017e CH |
192 | default y |
193 | help | |
194 | Say Y here to add support for the SBA IOMMU found on HP zx1 and | |
195 | sx1000 systems. If you're unsure, answer Y. | |
196 | ||
1da177e4 LT |
197 | config IA64_CYCLONE |
198 | bool "Cyclone (EXA) Time Source support" | |
199 | help | |
200 | Say Y here to enable support for IBM EXA Cyclone time source. | |
201 | If you're unsure, answer N. | |
202 | ||
1da177e4 | 203 | config FORCE_MAX_ZONEORDER |
da9577c5 BP |
204 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
205 | range 11 17 if !HUGETLB_PAGE | |
206 | default "17" if HUGETLB_PAGE | |
207 | default "11" | |
1da177e4 LT |
208 | |
209 | config SMP | |
210 | bool "Symmetric multi-processing support" | |
211 | help | |
212 | This enables support for systems with more than one CPU. If you have | |
213 | a system with only one CPU, say N. If you have a system with more | |
214 | than one CPU, say Y. | |
215 | ||
216 | If you say N here, the kernel will run on single and multiprocessor | |
217 | systems, but will use only one CPU of a multiprocessor system. If | |
218 | you say Y here, the kernel will run on many, but not all, | |
219 | single processor systems. On a single processor system, the kernel | |
220 | will run faster if you say N here. | |
221 | ||
03502faa AB |
222 | See also the SMP-HOWTO available at |
223 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
224 | |
225 | If you don't know what to do here, say N. | |
226 | ||
227 | config NR_CPUS | |
d1339df1 RH |
228 | int "Maximum number of CPUs (2-4096)" |
229 | range 2 4096 | |
1da177e4 | 230 | depends on SMP |
d1339df1 | 231 | default "4096" |
1da177e4 LT |
232 | help |
233 | You should set this to the number of CPUs in your system, but | |
234 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
235 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
236 | than 64 will cause the use of a CPU mask array, causing a small | |
237 | performance hit. | |
238 | ||
239 | config HOTPLUG_CPU | |
48a9240c KC |
240 | bool "Support for hot-pluggable CPUs" |
241 | depends on SMP | |
1da177e4 | 242 | default n |
a7f7f624 | 243 | help |
1da177e4 LT |
244 | Say Y here to experiment with turning CPUs off and on. CPUs |
245 | can be controlled through /sys/devices/system/cpu/cpu#. | |
246 | Say N if you want to disable CPU hotplug. | |
247 | ||
7a9bdd88 SS |
248 | config SCHED_SMT |
249 | bool "SMT scheduler support" | |
250 | depends on SMP | |
7a9bdd88 SS |
251 | help |
252 | Improves the CPU scheduler's decision making when dealing with | |
253 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
254 | overhead in some places. If unsure say N here. | |
255 | ||
ff741906 AR |
256 | config PERMIT_BSP_REMOVE |
257 | bool "Support removal of Bootstrap Processor" | |
258 | depends on HOTPLUG_CPU | |
259 | default n | |
a7f7f624 | 260 | help |
ff741906 AR |
261 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU |
262 | support. | |
263 | ||
264 | config FORCE_CPEI_RETARGET | |
25985edc | 265 | bool "Force assumption that CPEI can be re-targeted" |
ff741906 AR |
266 | depends on PERMIT_BSP_REMOVE |
267 | default n | |
a7f7f624 | 268 | help |
25985edc | 269 | Say Y if you need to force the assumption that CPEI can be re-targeted to |
ff741906 AR |
270 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
271 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
272 | This option it useful to enable this feature on older BIOS's as well. | |
273 | You can also enable this by using boot command line option force_cpei=1. | |
274 | ||
da9577c5 BP |
275 | config ARCH_SELECT_MEMORY_MODEL |
276 | def_bool y | |
277 | ||
da9577c5 BP |
278 | config ARCH_FLATMEM_ENABLE |
279 | def_bool y | |
280 | ||
281 | config ARCH_SPARSEMEM_ENABLE | |
282 | def_bool y | |
ef229c5a | 283 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 | 284 | |
214496cb | 285 | config ARCH_SPARSEMEM_DEFAULT |
df41017e | 286 | def_bool y |
214496cb | 287 | depends on ARCH_SPARSEMEM_ENABLE |
da9577c5 BP |
288 | |
289 | config NUMA | |
290 | bool "NUMA support" | |
fc5bad03 | 291 | depends on !FLATMEM |
a2cbfd46 | 292 | select SMP |
7ecd19cf | 293 | select USE_PERCPU_NUMA_NODE_ID |
da9577c5 BP |
294 | help |
295 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
296 | Access). This option is for configuring high-end multiprocessor | |
297 | server systems. If in doubt, say N. | |
298 | ||
c80d79d7 YG |
299 | config NODES_SHIFT |
300 | int "Max num nodes shift(3-10)" | |
301 | range 3 10 | |
c57d68ca | 302 | default "10" |
a9ee6cf5 | 303 | depends on NUMA |
c80d79d7 YG |
304 | help |
305 | This option specifies the maximum number of nodes in your SSI system. | |
306 | MAX_NUMNODES will be 2^(This value). | |
307 | If in doubt, use the default. | |
308 | ||
10ad400b YG |
309 | config HAVE_ARCH_NODEDATA_EXTENSION |
310 | def_bool y | |
3bccd996 LS |
311 | depends on NUMA |
312 | ||
fd1197f1 | 313 | config HAVE_MEMORYLESS_NODES |
25106000 | 314 | def_bool NUMA |
fd1197f1 | 315 | |
9492587c KH |
316 | config ARCH_PROC_KCORE_TEXT |
317 | def_bool y | |
318 | depends on PROC_KCORE | |
319 | ||
1da177e4 | 320 | config IA64_MCA_RECOVERY |
dbecf9b8 | 321 | bool "MCA recovery from errors other than TLB." |
1da177e4 | 322 | |
1da177e4 LT |
323 | config IA64_PALINFO |
324 | tristate "/proc/pal support" | |
325 | help | |
326 | If you say Y here, you are able to get PAL (Processor Abstraction | |
327 | Layer) information in /proc/pal. This contains useful information | |
328 | about the processors in your systems, such as cache and TLB sizes | |
329 | and the PAL firmware version in use. | |
330 | ||
331 | To use this option, you have to ensure that the "/proc file system | |
332 | support" (CONFIG_PROC_FS) is enabled, too. | |
333 | ||
e9ef08bd FY |
334 | config IA64_MC_ERR_INJECT |
335 | tristate "MC error injection support" | |
336 | help | |
01dd2fbf ML |
337 | Adds support for MC error injection. If enabled, the kernel |
338 | will provide a sysfs interface for user applications to | |
339 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
340 | This is a useful tool for MCA testing. |
341 | ||
342 | If you're unsure, do not select this option. | |
343 | ||
2ab561a1 DMT |
344 | config IA64_ESI |
345 | bool "ESI (Extensible SAL Interface) support" | |
346 | help | |
347 | If you say Y here, support is built into the kernel to | |
348 | make ESI calls. ESI calls are used to support vendor-specific | |
349 | firmware extensions, such as the ability to inject memory-errors | |
350 | for test-purposes. If you're unsure, say N. | |
351 | ||
28eda5b8 BH |
352 | config IA64_HP_AML_NFW |
353 | bool "Support ACPI AML calls to native firmware" | |
354 | help | |
355 | This driver installs a global ACPI Operation Region handler for | |
356 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
357 | native firmware functions. The driver installs the OpRegion | |
358 | handler if there is an HPQ5001 device or if the user supplies | |
359 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
360 | kernel command line option. | |
361 | ||
a7956113 | 362 | config KEXEC |
48a9240c | 363 | bool "kexec system call" |
fc5bad03 | 364 | depends on !SMP || HOTPLUG_CPU |
2965faa5 | 365 | select KEXEC_CORE |
a7956113 ZN |
366 | help |
367 | kexec is a system call that implements the ability to shutdown your | |
368 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 369 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
370 | you can start any kernel with it, not just Linux. |
371 | ||
01dd2fbf | 372 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
373 | |
374 | It is an ongoing process to be certain the hardware in a machine | |
375 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
376 | initially work for you. As of this writing the exact hardware |
377 | interface is strongly in flux, so no good recommendation can be | |
378 | made. | |
a7956113 ZN |
379 | |
380 | config CRASH_DUMP | |
fb86611f | 381 | bool "kernel crash dumps" |
fc5bad03 | 382 | depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU) |
a7956113 ZN |
383 | help |
384 | Generate crash dump after being started by kexec. | |
385 | ||
1da177e4 LT |
386 | endmenu |
387 | ||
1547a012 | 388 | menu "Power management and ACPI options" |
1da177e4 | 389 | |
eb7b6b32 | 390 | source "kernel/power/Kconfig" |
1da177e4 LT |
391 | |
392 | source "drivers/acpi/Kconfig" | |
393 | ||
4db8699b | 394 | if PM |
ab423e43 VK |
395 | menu "CPU Frequency scaling" |
396 | source "drivers/cpufreq/Kconfig" | |
397 | endmenu | |
4db8699b VP |
398 | endif |
399 | ||
1da177e4 LT |
400 | endmenu |
401 | ||
1a4b0fc5 JS |
402 | config MSPEC |
403 | tristate "Memory special operations driver" | |
404 | depends on IA64 | |
405 | select IA64_UNCACHED_ALLOCATOR | |
406 | help | |
407 | If you have an ia64 and you want to enable memory special | |
408 | operations support (formerly known as fetchop), say Y here, | |
409 | otherwise say N. |