1
2config 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
7menu "Processor type and features"
8
9config IA64
10 bool
11 select ARCH_HAS_DMA_MARK_CLEAN
12 select ARCH_HAS_STRNCPY_FROM_USER
13 select ARCH_HAS_STRNLEN_USER
14 select ARCH_MIGHT_HAVE_PC_PARPORT
15 select ARCH_MIGHT_HAVE_PC_SERIO
16 select ACPI
17 select ACPI_NUMA if NUMA
18 select ARCH_ENABLE_MEMORY_HOTPLUG
19 select ARCH_ENABLE_MEMORY_HOTREMOVE
20 select ARCH_SUPPORTS_ACPI
21 select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
22 select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
23 select FORCE_PCI
24 select PCI_DOMAINS if PCI
25 select PCI_MSI
26 select PCI_SYSCALL if PCI
27 select HAVE_ASM_MODVERSIONS
28 select HAVE_UNSTABLE_SCHED_CLOCK
29 select HAVE_EXIT_THREAD
30 select HAVE_KPROBES
31 select HAVE_KRETPROBES
32 select HAVE_FTRACE_MCOUNT_RECORD
33 select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
34 select HAVE_FUNCTION_TRACER
35 select TTY
36 select HAVE_ARCH_TRACEHOOK
37 select HAVE_VIRT_CPU_ACCOUNTING
38 select HUGETLB_PAGE_SIZE_VARIABLE if HUGETLB_PAGE
39 select VIRT_TO_BUS
40 select GENERIC_IRQ_PROBE
41 select GENERIC_PENDING_IRQ if SMP
42 select GENERIC_IRQ_SHOW
43 select GENERIC_IRQ_LEGACY
44 select ARCH_HAVE_NMI_SAFE_CMPXCHG
45 select GENERIC_IOMAP
46 select GENERIC_SMP_IDLE_THREAD
47 select ARCH_TASK_STRUCT_ON_STACK
48 select ARCH_TASK_STRUCT_ALLOCATOR
49 select ARCH_THREAD_STACK_ALLOCATOR
50 select ARCH_CLOCKSOURCE_DATA
51 select GENERIC_TIME_VSYSCALL
52 select LEGACY_TIMER_TICK
53 select SWIOTLB
54 select SYSCTL_ARCH_UNALIGN_NO_WARN
55 select HAVE_MOD_ARCH_SPECIFIC
56 select MODULES_USE_ELF_RELA
57 select ARCH_USE_CMPXCHG_LOCKREF
58 select HAVE_ARCH_AUDITSYSCALL
59 select NEED_DMA_MAP_STATE
60 select NEED_SG_DMA_LENGTH
61 select NUMA if !FLATMEM
62 select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
63 select SET_FS
64 select ZONE_DMA32
65 default y
66 help
67 The Itanium Processor Family is Intel's 64-bit successor to
68 the 32-bit X86 line. The IA-64 Linux project has a home
69 page at <http://www.linuxia64.org/> and a mailing list at
70 <linux-ia64@vger.kernel.org>.
71
72config 64BIT
73 bool
74 select ATA_NONSTANDARD if ATA
75 default y
76
77config MMU
78 bool
79 default y
80
81config STACKTRACE_SUPPORT
82 def_bool y
83
84config GENERIC_LOCKBREAK
85 def_bool n
86
87config GENERIC_CALIBRATE_DELAY
88 bool
89 default y
90
91config HAVE_SETUP_PER_CPU_AREA
92 def_bool y
93
94config DMI
95 bool
96 default y
97 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
98
99config EFI
100 bool
101 select UCS2_STRING
102 default y
103
104config SCHED_OMIT_FRAME_POINTER
105 bool
106 default y
107
108config IA64_UNCACHED_ALLOCATOR
109 bool
110 select GENERIC_ALLOCATOR
111
112config ARCH_USES_PG_UNCACHED
113 def_bool y
114 depends on IA64_UNCACHED_ALLOCATOR
115
116config AUDIT_ARCH
117 bool
118 default y
119
120choice
121 prompt "Processor type"
122 default ITANIUM
123
124config 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
131config MCKINLEY
132 bool "Itanium 2"
133 help
134 Select this to configure for an Itanium 2 (McKinley) processor.
135
136endchoice
137
138choice
139 prompt "Kernel page size"
140 default IA64_PAGE_SIZE_16KB
141
142config 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
159config IA64_PAGE_SIZE_8KB
160 bool "8KB"
161
162config IA64_PAGE_SIZE_16KB
163 bool "16KB"
164
165config IA64_PAGE_SIZE_64KB
166 depends on !ITANIUM
167 bool "64KB"
168
169endchoice
170
171source "kernel/Kconfig.hz"
172
173config IA64_BRL_EMU
174 bool
175 depends on ITANIUM
176 default y
177
178
179config IA64_L1_CACHE_SHIFT
180 int
181 default "7" if MCKINLEY
182 default "6" if ITANIUM
183
184config 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
191config IA64_HP_SBA_IOMMU
192 bool "HP SBA IOMMU support"
193 select DMA_OPS
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
199config 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
205config FORCE_MAX_ZONEORDER
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"
210
211config 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
224 See also the SMP-HOWTO available at
225 <http://www.tldp.org/docs.html#howto>.
226
227 If you don't know what to do here, say N.
228
229config NR_CPUS
230 int "Maximum number of CPUs (2-4096)"
231 range 2 4096
232 depends on SMP
233 default "4096"
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
241config HOTPLUG_CPU
242 bool "Support for hot-pluggable CPUs"
243 depends on SMP
244 default n
245 help
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
250config SCHED_SMT
251 bool "SMT scheduler support"
252 depends on SMP
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
258config PERMIT_BSP_REMOVE
259 bool "Support removal of Bootstrap Processor"
260 depends on HOTPLUG_CPU
261 default n
262 help
263 Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
264 support.
265
266config FORCE_CPEI_RETARGET
267 bool "Force assumption that CPEI can be re-targeted"
268 depends on PERMIT_BSP_REMOVE
269 default n
270 help
271 Say Y if you need to force the assumption that CPEI can be re-targeted to
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
277config ARCH_SELECT_MEMORY_MODEL
278 def_bool y
279
280config ARCH_FLATMEM_ENABLE
281 def_bool y
282
283config ARCH_SPARSEMEM_ENABLE
284 def_bool y
285 select SPARSEMEM_VMEMMAP_ENABLE
286
287config ARCH_SPARSEMEM_DEFAULT
288 def_bool y
289 depends on ARCH_SPARSEMEM_ENABLE
290
291config NUMA
292 bool "NUMA support"
293 depends on !FLATMEM
294 select SMP
295 help
296 Say Y to compile the kernel to support NUMA (Non-Uniform Memory
297 Access). This option is for configuring high-end multiprocessor
298 server systems. If in doubt, say N.
299
300config NODES_SHIFT
301 int "Max num nodes shift(3-10)"
302 range 3 10
303 default "10"
304 depends on NUMA
305 help
306 This option specifies the maximum number of nodes in your SSI system.
307 MAX_NUMNODES will be 2^(This value).
308 If in doubt, use the default.
309
310config HAVE_ARCH_NODEDATA_EXTENSION
311 def_bool y
312 depends on NUMA
313
314config USE_PERCPU_NUMA_NODE_ID
315 def_bool y
316 depends on NUMA
317
318config HAVE_MEMORYLESS_NODES
319 def_bool NUMA
320
321config ARCH_PROC_KCORE_TEXT
322 def_bool y
323 depends on PROC_KCORE
324
325config IA64_MCA_RECOVERY
326 tristate "MCA recovery from errors other than TLB."
327
328config IA64_PALINFO
329 tristate "/proc/pal support"
330 help
331 If you say Y here, you are able to get PAL (Processor Abstraction
332 Layer) information in /proc/pal. This contains useful information
333 about the processors in your systems, such as cache and TLB sizes
334 and the PAL firmware version in use.
335
336 To use this option, you have to ensure that the "/proc file system
337 support" (CONFIG_PROC_FS) is enabled, too.
338
339config IA64_MC_ERR_INJECT
340 tristate "MC error injection support"
341 help
342 Adds support for MC error injection. If enabled, the kernel
343 will provide a sysfs interface for user applications to
344 call MC error injection PAL procedures to inject various errors.
345 This is a useful tool for MCA testing.
346
347 If you're unsure, do not select this option.
348
349config IA64_ESI
350 bool "ESI (Extensible SAL Interface) support"
351 help
352 If you say Y here, support is built into the kernel to
353 make ESI calls. ESI calls are used to support vendor-specific
354 firmware extensions, such as the ability to inject memory-errors
355 for test-purposes. If you're unsure, say N.
356
357config IA64_HP_AML_NFW
358 bool "Support ACPI AML calls to native firmware"
359 help
360 This driver installs a global ACPI Operation Region handler for
361 region 0xA1. AML methods can use this OpRegion to call arbitrary
362 native firmware functions. The driver installs the OpRegion
363 handler if there is an HPQ5001 device or if the user supplies
364 the "force" module parameter, e.g., with the "aml_nfw.force"
365 kernel command line option.
366
367config KEXEC
368 bool "kexec system call"
369 depends on !SMP || HOTPLUG_CPU
370 select KEXEC_CORE
371 help
372 kexec is a system call that implements the ability to shutdown your
373 current kernel, and to start another kernel. It is like a reboot
374 but it is independent of the system firmware. And like a reboot
375 you can start any kernel with it, not just Linux.
376
377 The name comes from the similarity to the exec system call.
378
379 It is an ongoing process to be certain the hardware in a machine
380 is properly shutdown, so do not be surprised if this code does not
381 initially work for you. As of this writing the exact hardware
382 interface is strongly in flux, so no good recommendation can be
383 made.
384
385config CRASH_DUMP
386 bool "kernel crash dumps"
387 depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU)
388 help
389 Generate crash dump after being started by kexec.
390
391endmenu
392
393menu "Power management and ACPI options"
394
395source "kernel/power/Kconfig"
396
397source "drivers/acpi/Kconfig"
398
399if PM
400menu "CPU Frequency scaling"
401source "drivers/cpufreq/Kconfig"
402endmenu
403endif
404
405endmenu
406
407config MSPEC
408 tristate "Memory special operations driver"
409 depends on IA64
410 select IA64_UNCACHED_ALLOCATOR
411 help
412 If you have an ia64 and you want to enable memory special
413 operations support (formerly known as fetchop), say Y here,
414 otherwise say N.
415
