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 |
fcbfe812 | 28 | select HAS_IOPORT |
2ff2b7ec | 29 | select HAVE_ASM_MODVERSIONS |
0773a6cf | 30 | select HAVE_UNSTABLE_SCHED_CLOCK |
5f56a5df | 31 | select HAVE_EXIT_THREAD |
3f550096 | 32 | select HAVE_KPROBES |
9edddaa2 | 33 | select HAVE_KRETPROBES |
a14a07b8 SL |
34 | select HAVE_FTRACE_MCOUNT_RECORD |
35 | select HAVE_DYNAMIC_FTRACE if (!ITANIUM) | |
d3e75ff1 | 36 | select HAVE_FUNCTION_TRACER |
7ecd19cf | 37 | select HAVE_SETUP_PER_CPU_AREA |
6035d9db | 38 | select TTY |
9690ad03 | 39 | select HAVE_ARCH_TRACEHOOK |
a257cacc | 40 | select HAVE_FUNCTION_DESCRIPTORS |
b952741c | 41 | select HAVE_VIRT_CPU_ACCOUNTING |
4bfb68a0 | 42 | select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE |
c5e66129 TG |
43 | select GENERIC_IRQ_PROBE |
44 | select GENERIC_PENDING_IRQ if SMP | |
e3d78122 | 45 | select GENERIC_IRQ_SHOW |
4debd723 | 46 | select GENERIC_IRQ_LEGACY |
df013ffb | 47 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
4673ca8e | 48 | select GENERIC_IOMAP |
13583bf1 | 49 | select GENERIC_SMP_IDLE_THREAD |
0500871f | 50 | select ARCH_TASK_STRUCT_ON_STACK |
f5e10287 | 51 | select ARCH_TASK_STRUCT_ALLOCATOR |
b235beea | 52 | select ARCH_THREAD_STACK_ALLOCATOR |
21b19710 | 53 | select ARCH_CLOCKSOURCE_DATA |
d4d1fc61 | 54 | select GENERIC_TIME_VSYSCALL |
2b49ddce | 55 | select LEGACY_TIMER_TICK |
df41017e | 56 | select SWIOTLB |
b6fca725 | 57 | select SYSCTL_ARCH_UNALIGN_NO_WARN |
786d35d4 DH |
58 | select HAVE_MOD_ARCH_SPECIFIC |
59 | select MODULES_USE_ELF_RELA | |
71c7356f | 60 | select ARCH_USE_CMPXCHG_LOCKREF |
7a017721 | 61 | select HAVE_ARCH_AUDITSYSCALL |
f616ab59 | 62 | select NEED_DMA_MAP_STATE |
86596f0a | 63 | select NEED_SG_DMA_LENGTH |
df41017e | 64 | select NUMA if !FLATMEM |
981aa1d3 | 65 | select PCI_MSI_ARCH_FALLBACKS if PCI_MSI |
63703f37 | 66 | select ZONE_DMA32 |
d49a0626 | 67 | select FUNCTION_ALIGNMENT_32B |
1da177e4 LT |
68 | default y |
69 | help | |
70 | The Itanium Processor Family is Intel's 64-bit successor to | |
71 | the 32-bit X86 line. The IA-64 Linux project has a home | |
72 | page at <http://www.linuxia64.org/> and a mailing list at | |
73 | <linux-ia64@vger.kernel.org>. | |
74 | ||
75 | config 64BIT | |
76 | bool | |
9f271d57 | 77 | select ATA_NONSTANDARD if ATA |
1da177e4 LT |
78 | default y |
79 | ||
80 | config MMU | |
81 | bool | |
82 | default y | |
83 | ||
85718fae TL |
84 | config STACKTRACE_SUPPORT |
85 | def_bool y | |
86 | ||
95c354fe | 87 | config GENERIC_LOCKBREAK |
2c86963b | 88 | def_bool n |
95c354fe | 89 | |
1da177e4 LT |
90 | config GENERIC_CALIBRATE_DELAY |
91 | bool | |
92 | default y | |
93 | ||
3ed3bce8 MD |
94 | config DMI |
95 | bool | |
96 | default y | |
cf074402 | 97 | select DMI_SCAN_MACHINE_NON_EFI_FALLBACK |
3ed3bce8 | 98 | |
1da177e4 LT |
99 | config EFI |
100 | bool | |
a614e192 | 101 | select UCS2_STRING |
1da177e4 LT |
102 | default y |
103 | ||
ae1e9130 | 104 | config SCHED_OMIT_FRAME_POINTER |
7d12e522 AB |
105 | bool |
106 | default y | |
107 | ||
f14f75b8 JS |
108 | config IA64_UNCACHED_ALLOCATOR |
109 | bool | |
110 | select GENERIC_ALLOCATOR | |
111 | ||
46cf98cd VP |
112 | config ARCH_USES_PG_UNCACHED |
113 | def_bool y | |
114 | depends on IA64_UNCACHED_ALLOCATOR | |
115 | ||
e65e1fc2 AV |
116 | config AUDIT_ARCH |
117 | bool | |
118 | default y | |
119 | ||
1da177e4 LT |
120 | choice |
121 | prompt "Processor type" | |
122 | default ITANIUM | |
123 | ||
124 | config ITANIUM | |
125 | bool "Itanium" | |
126 | help | |
127 | Select your IA-64 processor type. The default is Itanium. | |
128 | This choice is safe for all IA-64 systems, but may not perform | |
129 | optimally on systems with, say, Itanium 2 or newer processors. | |
130 | ||
131 | config MCKINLEY | |
132 | bool "Itanium 2" | |
133 | help | |
134 | Select this to configure for an Itanium 2 (McKinley) processor. | |
135 | ||
136 | endchoice | |
137 | ||
138 | choice | |
139 | prompt "Kernel page size" | |
140 | default IA64_PAGE_SIZE_16KB | |
141 | ||
142 | config IA64_PAGE_SIZE_4KB | |
143 | bool "4KB" | |
144 | help | |
145 | This lets you select the page size of the kernel. For best IA-64 | |
146 | performance, a page size of 8KB or 16KB is recommended. For best | |
147 | IA-32 compatibility, a page size of 4KB should be selected (the vast | |
148 | majority of IA-32 binaries work perfectly fine with a larger page | |
149 | size). For Itanium 2 or newer systems, a page size of 64KB can also | |
150 | be selected. | |
151 | ||
152 | 4KB For best IA-32 compatibility | |
153 | 8KB For best IA-64 performance | |
154 | 16KB For best IA-64 performance | |
155 | 64KB Requires Itanium 2 or newer processor. | |
156 | ||
157 | If you don't know what to do, choose 16KB. | |
158 | ||
159 | config IA64_PAGE_SIZE_8KB | |
160 | bool "8KB" | |
161 | ||
162 | config IA64_PAGE_SIZE_16KB | |
163 | bool "16KB" | |
164 | ||
165 | config IA64_PAGE_SIZE_64KB | |
166 | depends on !ITANIUM | |
167 | bool "64KB" | |
168 | ||
169 | endchoice | |
170 | ||
8636a1f9 | 171 | source "kernel/Kconfig.hz" |
b5d23e5b | 172 | |
1da177e4 LT |
173 | config IA64_BRL_EMU |
174 | bool | |
175 | depends on ITANIUM | |
176 | default y | |
177 | ||
178 | # align cache-sensitive data to 128 bytes | |
179 | config IA64_L1_CACHE_SHIFT | |
180 | int | |
181 | default "7" if MCKINLEY | |
182 | default "6" if ITANIUM | |
183 | ||
df41017e CH |
184 | config IA64_SGI_UV |
185 | bool "SGI-UV support" | |
186 | help | |
187 | Selecting this option will add specific support for running on SGI | |
188 | UV based systems. If you have an SGI UV system or are building a | |
189 | distro kernel, select this option. | |
190 | ||
191 | config IA64_HP_SBA_IOMMU | |
192 | bool "HP SBA IOMMU support" | |
2f9237d4 | 193 | select DMA_OPS |
df41017e CH |
194 | default y |
195 | help | |
196 | Say Y here to add support for the SBA IOMMU found on HP zx1 and | |
197 | sx1000 systems. If you're unsure, answer Y. | |
198 | ||
1da177e4 LT |
199 | config IA64_CYCLONE |
200 | bool "Cyclone (EXA) Time Source support" | |
201 | help | |
202 | Say Y here to enable support for IBM EXA Cyclone time source. | |
203 | If you're unsure, answer N. | |
204 | ||
0192445c | 205 | config ARCH_FORCE_MAX_ORDER |
da9577c5 BP |
206 | int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE |
207 | range 11 17 if !HUGETLB_PAGE | |
208 | default "17" if HUGETLB_PAGE | |
209 | default "11" | |
1da177e4 LT |
210 | |
211 | config SMP | |
212 | bool "Symmetric multi-processing support" | |
213 | help | |
214 | This enables support for systems with more than one CPU. If you have | |
215 | a system with only one CPU, say N. If you have a system with more | |
216 | than one CPU, say Y. | |
217 | ||
218 | If you say N here, the kernel will run on single and multiprocessor | |
219 | systems, but will use only one CPU of a multiprocessor system. If | |
220 | you say Y here, the kernel will run on many, but not all, | |
221 | single processor systems. On a single processor system, the kernel | |
222 | will run faster if you say N here. | |
223 | ||
03502faa AB |
224 | See also the SMP-HOWTO available at |
225 | <http://www.tldp.org/docs.html#howto>. | |
1da177e4 LT |
226 | |
227 | If you don't know what to do here, say N. | |
228 | ||
229 | config NR_CPUS | |
d1339df1 RH |
230 | int "Maximum number of CPUs (2-4096)" |
231 | range 2 4096 | |
1da177e4 | 232 | depends on SMP |
d1339df1 | 233 | default "4096" |
1da177e4 LT |
234 | help |
235 | You should set this to the number of CPUs in your system, but | |
236 | keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but | |
237 | only use 2 CPUs on a >2 CPU system. Setting this to a value larger | |
238 | than 64 will cause the use of a CPU mask array, causing a small | |
239 | performance hit. | |
240 | ||
241 | config HOTPLUG_CPU | |
48a9240c KC |
242 | bool "Support for hot-pluggable CPUs" |
243 | depends on SMP | |
1da177e4 | 244 | default n |
a7f7f624 | 245 | help |
1da177e4 LT |
246 | Say Y here to experiment with turning CPUs off and on. CPUs |
247 | can be controlled through /sys/devices/system/cpu/cpu#. | |
248 | Say N if you want to disable CPU hotplug. | |
249 | ||
7a9bdd88 SS |
250 | config SCHED_SMT |
251 | bool "SMT scheduler support" | |
252 | depends on SMP | |
7a9bdd88 SS |
253 | help |
254 | Improves the CPU scheduler's decision making when dealing with | |
255 | Intel IA64 chips with MultiThreading at a cost of slightly increased | |
256 | overhead in some places. If unsure say N here. | |
257 | ||
ff741906 AR |
258 | config PERMIT_BSP_REMOVE |
259 | bool "Support removal of Bootstrap Processor" | |
260 | depends on HOTPLUG_CPU | |
261 | default n | |
a7f7f624 | 262 | help |
ff741906 AR |
263 | Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU |
264 | support. | |
265 | ||
266 | config FORCE_CPEI_RETARGET | |
25985edc | 267 | bool "Force assumption that CPEI can be re-targeted" |
ff741906 AR |
268 | depends on PERMIT_BSP_REMOVE |
269 | default n | |
a7f7f624 | 270 | help |
25985edc | 271 | Say Y if you need to force the assumption that CPEI can be re-targeted to |
ff741906 AR |
272 | any cpu in the system. This hint is available via ACPI 3.0 specifications. |
273 | Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP. | |
274 | This option it useful to enable this feature on older BIOS's as well. | |
275 | You can also enable this by using boot command line option force_cpei=1. | |
276 | ||
da9577c5 BP |
277 | config ARCH_SELECT_MEMORY_MODEL |
278 | def_bool y | |
279 | ||
da9577c5 BP |
280 | config ARCH_FLATMEM_ENABLE |
281 | def_bool y | |
282 | ||
283 | config ARCH_SPARSEMEM_ENABLE | |
284 | def_bool y | |
ef229c5a | 285 | select SPARSEMEM_VMEMMAP_ENABLE |
da9577c5 | 286 | |
214496cb | 287 | config ARCH_SPARSEMEM_DEFAULT |
df41017e | 288 | def_bool y |
214496cb | 289 | depends on ARCH_SPARSEMEM_ENABLE |
da9577c5 BP |
290 | |
291 | config NUMA | |
292 | bool "NUMA support" | |
fc5bad03 | 293 | depends on !FLATMEM |
a2cbfd46 | 294 | select SMP |
7ecd19cf | 295 | select USE_PERCPU_NUMA_NODE_ID |
da9577c5 BP |
296 | help |
297 | Say Y to compile the kernel to support NUMA (Non-Uniform Memory | |
298 | Access). This option is for configuring high-end multiprocessor | |
299 | server systems. If in doubt, say N. | |
300 | ||
c80d79d7 YG |
301 | config NODES_SHIFT |
302 | int "Max num nodes shift(3-10)" | |
303 | range 3 10 | |
c57d68ca | 304 | default "10" |
a9ee6cf5 | 305 | depends on NUMA |
c80d79d7 YG |
306 | help |
307 | This option specifies the maximum number of nodes in your SSI system. | |
308 | MAX_NUMNODES will be 2^(This value). | |
309 | If in doubt, use the default. | |
310 | ||
10ad400b YG |
311 | config HAVE_ARCH_NODEDATA_EXTENSION |
312 | def_bool y | |
3bccd996 LS |
313 | depends on NUMA |
314 | ||
fd1197f1 | 315 | config HAVE_MEMORYLESS_NODES |
25106000 | 316 | def_bool NUMA |
fd1197f1 | 317 | |
9492587c KH |
318 | config ARCH_PROC_KCORE_TEXT |
319 | def_bool y | |
320 | depends on PROC_KCORE | |
321 | ||
1da177e4 | 322 | config IA64_MCA_RECOVERY |
dbecf9b8 | 323 | bool "MCA recovery from errors other than TLB." |
1da177e4 | 324 | |
1da177e4 LT |
325 | config IA64_PALINFO |
326 | tristate "/proc/pal support" | |
327 | help | |
328 | If you say Y here, you are able to get PAL (Processor Abstraction | |
329 | Layer) information in /proc/pal. This contains useful information | |
330 | about the processors in your systems, such as cache and TLB sizes | |
331 | and the PAL firmware version in use. | |
332 | ||
333 | To use this option, you have to ensure that the "/proc file system | |
334 | support" (CONFIG_PROC_FS) is enabled, too. | |
335 | ||
e9ef08bd FY |
336 | config IA64_MC_ERR_INJECT |
337 | tristate "MC error injection support" | |
338 | help | |
01dd2fbf ML |
339 | Adds support for MC error injection. If enabled, the kernel |
340 | will provide a sysfs interface for user applications to | |
341 | call MC error injection PAL procedures to inject various errors. | |
e9ef08bd FY |
342 | This is a useful tool for MCA testing. |
343 | ||
344 | If you're unsure, do not select this option. | |
345 | ||
2ab561a1 DMT |
346 | config IA64_ESI |
347 | bool "ESI (Extensible SAL Interface) support" | |
348 | help | |
349 | If you say Y here, support is built into the kernel to | |
350 | make ESI calls. ESI calls are used to support vendor-specific | |
351 | firmware extensions, such as the ability to inject memory-errors | |
352 | for test-purposes. If you're unsure, say N. | |
353 | ||
28eda5b8 BH |
354 | config IA64_HP_AML_NFW |
355 | bool "Support ACPI AML calls to native firmware" | |
356 | help | |
357 | This driver installs a global ACPI Operation Region handler for | |
358 | region 0xA1. AML methods can use this OpRegion to call arbitrary | |
359 | native firmware functions. The driver installs the OpRegion | |
360 | handler if there is an HPQ5001 device or if the user supplies | |
361 | the "force" module parameter, e.g., with the "aml_nfw.force" | |
362 | kernel command line option. | |
363 | ||
a7956113 | 364 | config KEXEC |
48a9240c | 365 | bool "kexec system call" |
fc5bad03 | 366 | depends on !SMP || HOTPLUG_CPU |
2965faa5 | 367 | select KEXEC_CORE |
a7956113 ZN |
368 | help |
369 | kexec is a system call that implements the ability to shutdown your | |
370 | current kernel, and to start another kernel. It is like a reboot | |
3dde6ad8 | 371 | but it is independent of the system firmware. And like a reboot |
a7956113 ZN |
372 | you can start any kernel with it, not just Linux. |
373 | ||
01dd2fbf | 374 | The name comes from the similarity to the exec system call. |
a7956113 ZN |
375 | |
376 | It is an ongoing process to be certain the hardware in a machine | |
377 | is properly shutdown, so do not be surprised if this code does not | |
bf220695 GU |
378 | initially work for you. As of this writing the exact hardware |
379 | interface is strongly in flux, so no good recommendation can be | |
380 | made. | |
a7956113 ZN |
381 | |
382 | config CRASH_DUMP | |
fb86611f | 383 | bool "kernel crash dumps" |
fc5bad03 | 384 | depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU) |
a7956113 ZN |
385 | help |
386 | Generate crash dump after being started by kexec. | |
387 | ||
1da177e4 LT |
388 | endmenu |
389 | ||
1547a012 | 390 | menu "Power management and ACPI options" |
1da177e4 | 391 | |
eb7b6b32 | 392 | source "kernel/power/Kconfig" |
1da177e4 LT |
393 | |
394 | source "drivers/acpi/Kconfig" | |
395 | ||
4db8699b | 396 | if PM |
ab423e43 VK |
397 | menu "CPU Frequency scaling" |
398 | source "drivers/cpufreq/Kconfig" | |
399 | endmenu | |
4db8699b VP |
400 | endif |
401 | ||
1da177e4 LT |
402 | endmenu |
403 | ||
1a4b0fc5 JS |
404 | config MSPEC |
405 | tristate "Memory special operations driver" | |
406 | depends on IA64 | |
407 | select IA64_UNCACHED_ALLOCATOR | |
408 | help | |
409 | If you have an ia64 and you want to enable memory special | |
410 | operations support (formerly known as fetchop), say Y here, | |
411 | otherwise say N. |