xref: /openbmc/linux/arch/ia64/Kconfig (revision 97da55fc)
1source "init/Kconfig"
2
3source "kernel/Kconfig.freezer"
4
5menu "Processor type and features"
6
7config IA64
8	bool
9	select PCI if (!IA64_HP_SIM)
10	select ACPI if (!IA64_HP_SIM)
11	select PM if (!IA64_HP_SIM)
12	select ARCH_SUPPORTS_MSI
13	select HAVE_UNSTABLE_SCHED_CLOCK
14	select HAVE_IDE
15	select HAVE_OPROFILE
16	select HAVE_KPROBES
17	select HAVE_KRETPROBES
18	select HAVE_FTRACE_MCOUNT_RECORD
19	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
20	select HAVE_FUNCTION_TRACER
21	select HAVE_DMA_ATTRS
22	select HAVE_KVM
23	select HAVE_ARCH_TRACEHOOK
24	select HAVE_DMA_API_DEBUG
25	select HAVE_GENERIC_HARDIRQS
26	select HAVE_MEMBLOCK
27	select HAVE_MEMBLOCK_NODE_MAP
28	select HAVE_VIRT_CPU_ACCOUNTING
29	select VIRT_TO_BUS
30	select ARCH_DISCARD_MEMBLOCK
31	select GENERIC_IRQ_PROBE
32	select GENERIC_PENDING_IRQ if SMP
33	select GENERIC_IRQ_SHOW
34	select ARCH_WANT_OPTIONAL_GPIOLIB
35	select ARCH_HAVE_NMI_SAFE_CMPXCHG
36	select GENERIC_IOMAP
37	select GENERIC_SMP_IDLE_THREAD
38	select ARCH_INIT_TASK
39	select ARCH_TASK_STRUCT_ALLOCATOR
40	select ARCH_THREAD_INFO_ALLOCATOR
41	select ARCH_CLOCKSOURCE_DATA
42	select GENERIC_TIME_VSYSCALL_OLD
43	select SYSCTL_ARCH_UNALIGN_NO_WARN
44	select HAVE_MOD_ARCH_SPECIFIC
45	select MODULES_USE_ELF_RELA
46	default y
47	help
48	  The Itanium Processor Family is Intel's 64-bit successor to
49	  the 32-bit X86 line.  The IA-64 Linux project has a home
50	  page at <http://www.linuxia64.org/> and a mailing list at
51	  <linux-ia64@vger.kernel.org>.
52
53config 64BIT
54	bool
55	select ATA_NONSTANDARD if ATA
56	default y
57
58config ZONE_DMA
59	def_bool y
60	depends on !IA64_SGI_SN2
61
62config QUICKLIST
63	bool
64	default y
65
66config MMU
67	bool
68	default y
69
70config ARCH_DMA_ADDR_T_64BIT
71	def_bool y
72
73config NEED_DMA_MAP_STATE
74	def_bool y
75
76config NEED_SG_DMA_LENGTH
77	def_bool y
78
79config SWIOTLB
80       bool
81
82config STACKTRACE_SUPPORT
83	def_bool y
84
85config GENERIC_LOCKBREAK
86	def_bool n
87
88config RWSEM_XCHGADD_ALGORITHM
89	bool
90	default y
91
92config HUGETLB_PAGE_SIZE_VARIABLE
93	bool
94	depends on HUGETLB_PAGE
95	default y
96
97config GENERIC_CALIBRATE_DELAY
98	bool
99	default y
100
101config HAVE_SETUP_PER_CPU_AREA
102	def_bool y
103
104config GENERIC_GPIO
105	bool
106
107config DMI
108	bool
109	default y
110
111config EFI
112	bool
113	default y
114
115config SCHED_OMIT_FRAME_POINTER
116	bool
117	default y
118
119config IA64_UNCACHED_ALLOCATOR
120	bool
121	select GENERIC_ALLOCATOR
122
123config ARCH_USES_PG_UNCACHED
124	def_bool y
125	depends on IA64_UNCACHED_ALLOCATOR
126
127config AUDIT_ARCH
128	bool
129	default y
130
131menuconfig PARAVIRT_GUEST
132	bool "Paravirtualized guest support"
133	depends on BROKEN
134	help
135	  Say Y here to get to see options related to running Linux under
136	  various hypervisors.  This option alone does not add any kernel code.
137
138	  If you say N, all options in this submenu will be skipped and disabled.
139
140if PARAVIRT_GUEST
141
142config PARAVIRT
143	bool "Enable paravirtualization code"
144	depends on PARAVIRT_GUEST
145	default y
146	help
147	  This changes the kernel so it can modify itself when it is run
148	  under a hypervisor, potentially improving performance significantly
149	  over full virtualization.  However, when run without a hypervisor
150	  the kernel is theoretically slower and slightly larger.
151
152
153source "arch/ia64/xen/Kconfig"
154
155endif
156
157choice
158	prompt "System type"
159	default IA64_GENERIC
160
161config IA64_GENERIC
162	bool "generic"
163	select NUMA
164	select ACPI_NUMA
165	select SWIOTLB
166	select PCI_MSI
167	help
168	  This selects the system type of your hardware.  A "generic" kernel
169	  will run on any supported IA-64 system.  However, if you configure
170	  a kernel for your specific system, it will be faster and smaller.
171
172	  generic		For any supported IA-64 system
173	  DIG-compliant		For DIG ("Developer's Interface Guide") compliant systems
174	  DIG+Intel+IOMMU	For DIG systems with Intel IOMMU
175	  HP-zx1/sx1000		For HP systems
176	  HP-zx1/sx1000+swiotlb	For HP systems with (broken) DMA-constrained devices.
177	  SGI-SN2		For SGI Altix systems
178	  SGI-UV		For SGI UV systems
179	  Ski-simulator		For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
180	  Xen-domU		For xen domU system
181
182	  If you don't know what to do, choose "generic".
183
184config IA64_DIG
185	bool "DIG-compliant"
186	select SWIOTLB
187
188config IA64_DIG_VTD
189	bool "DIG+Intel+IOMMU"
190	select DMAR
191	select PCI_MSI
192
193config IA64_HP_ZX1
194	bool "HP-zx1/sx1000"
195	help
196	  Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
197	  support for the HP I/O MMU.
198
199config IA64_HP_ZX1_SWIOTLB
200	bool "HP-zx1/sx1000 with software I/O TLB"
201	select SWIOTLB
202	help
203	  Build a kernel that runs on HP zx1 and sx1000 systems even when they
204	  have broken PCI devices which cannot DMA to full 32 bits.  Apart
205	  from support for the HP I/O MMU, this includes support for the software
206	  I/O TLB, which allows supporting the broken devices at the expense of
207	  wasting some kernel memory (about 2MB by default).
208
209config IA64_SGI_SN2
210	bool "SGI-SN2"
211	select NUMA
212	select ACPI_NUMA
213	help
214	  Selecting this option will optimize the kernel for use on sn2 based
215	  systems, but the resulting kernel binary will not run on other
216	  types of ia64 systems.  If you have an SGI Altix system, it's safe
217	  to select this option.  If in doubt, select ia64 generic support
218	  instead.
219
220config IA64_SGI_UV
221	bool "SGI-UV"
222	select NUMA
223	select ACPI_NUMA
224	select SWIOTLB
225	help
226	  Selecting this option will optimize the kernel for use on UV based
227	  systems, but the resulting kernel binary will not run on other
228	  types of ia64 systems.  If you have an SGI UV system, it's safe
229	  to select this option.  If in doubt, select ia64 generic support
230	  instead.
231
232config IA64_HP_SIM
233	bool "Ski-simulator"
234	select SWIOTLB
235
236config IA64_XEN_GUEST
237	bool "Xen guest"
238	select SWIOTLB
239	depends on XEN
240	help
241	  Build a kernel that runs on Xen guest domain. At this moment only
242	  16KB page size in supported.
243
244endchoice
245
246choice
247	prompt "Processor type"
248	default ITANIUM
249
250config ITANIUM
251	bool "Itanium"
252	help
253	  Select your IA-64 processor type.  The default is Itanium.
254	  This choice is safe for all IA-64 systems, but may not perform
255	  optimally on systems with, say, Itanium 2 or newer processors.
256
257config MCKINLEY
258	bool "Itanium 2"
259	help
260	  Select this to configure for an Itanium 2 (McKinley) processor.
261
262endchoice
263
264choice
265	prompt "Kernel page size"
266	default IA64_PAGE_SIZE_16KB
267
268config IA64_PAGE_SIZE_4KB
269	bool "4KB"
270	help
271	  This lets you select the page size of the kernel.  For best IA-64
272	  performance, a page size of 8KB or 16KB is recommended.  For best
273	  IA-32 compatibility, a page size of 4KB should be selected (the vast
274	  majority of IA-32 binaries work perfectly fine with a larger page
275	  size).  For Itanium 2 or newer systems, a page size of 64KB can also
276	  be selected.
277
278	  4KB                For best IA-32 compatibility
279	  8KB                For best IA-64 performance
280	  16KB               For best IA-64 performance
281	  64KB               Requires Itanium 2 or newer processor.
282
283	  If you don't know what to do, choose 16KB.
284
285config IA64_PAGE_SIZE_8KB
286	bool "8KB"
287
288config IA64_PAGE_SIZE_16KB
289	bool "16KB"
290
291config IA64_PAGE_SIZE_64KB
292	depends on !ITANIUM
293	bool "64KB"
294
295endchoice
296
297choice
298	prompt "Page Table Levels"
299	default PGTABLE_3
300
301config PGTABLE_3
302	bool "3 Levels"
303
304config PGTABLE_4
305	depends on !IA64_PAGE_SIZE_64KB
306	bool "4 Levels"
307
308endchoice
309
310if IA64_HP_SIM
311config HZ
312	default 32
313endif
314
315if !IA64_HP_SIM
316source kernel/Kconfig.hz
317endif
318
319config IA64_BRL_EMU
320	bool
321	depends on ITANIUM
322	default y
323
324# align cache-sensitive data to 128 bytes
325config IA64_L1_CACHE_SHIFT
326	int
327	default "7" if MCKINLEY
328	default "6" if ITANIUM
329
330config IA64_CYCLONE
331	bool "Cyclone (EXA) Time Source support"
332	help
333	  Say Y here to enable support for IBM EXA Cyclone time source.
334	  If you're unsure, answer N.
335
336config IOSAPIC
337	bool
338	depends on !IA64_HP_SIM
339	default y
340
341config FORCE_MAX_ZONEORDER
342	int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
343	range 11 17  if !HUGETLB_PAGE
344	default "17" if HUGETLB_PAGE
345	default "11"
346
347config SMP
348	bool "Symmetric multi-processing support"
349	select USE_GENERIC_SMP_HELPERS
350	help
351	  This enables support for systems with more than one CPU. If you have
352	  a system with only one CPU, say N.  If you have a system with more
353	  than one CPU, say Y.
354
355	  If you say N here, the kernel will run on single and multiprocessor
356	  systems, but will use only one CPU of a multiprocessor system.  If
357	  you say Y here, the kernel will run on many, but not all,
358	  single processor systems.  On a single processor system, the kernel
359	  will run faster if you say N here.
360
361	  See also the SMP-HOWTO available at
362	  <http://www.tldp.org/docs.html#howto>.
363
364	  If you don't know what to do here, say N.
365
366config NR_CPUS
367	int "Maximum number of CPUs (2-4096)"
368	range 2 4096
369	depends on SMP
370	default "4096"
371	help
372	  You should set this to the number of CPUs in your system, but
373	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
374	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
375	  than 64 will cause the use of a CPU mask array, causing a small
376	  performance hit.
377
378config HOTPLUG_CPU
379	bool "Support for hot-pluggable CPUs"
380	depends on SMP
381	select HOTPLUG
382	default n
383	---help---
384	  Say Y here to experiment with turning CPUs off and on.  CPUs
385	  can be controlled through /sys/devices/system/cpu/cpu#.
386	  Say N if you want to disable CPU hotplug.
387
388config ARCH_ENABLE_MEMORY_HOTPLUG
389	def_bool y
390
391config ARCH_ENABLE_MEMORY_HOTREMOVE
392	def_bool y
393
394config SCHED_SMT
395	bool "SMT scheduler support"
396	depends on SMP
397	help
398	  Improves the CPU scheduler's decision making when dealing with
399	  Intel IA64 chips with MultiThreading at a cost of slightly increased
400	  overhead in some places. If unsure say N here.
401
402config PERMIT_BSP_REMOVE
403	bool "Support removal of Bootstrap Processor"
404	depends on HOTPLUG_CPU
405	default n
406	---help---
407	Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
408	support.
409
410config FORCE_CPEI_RETARGET
411	bool "Force assumption that CPEI can be re-targeted"
412	depends on PERMIT_BSP_REMOVE
413	default n
414	---help---
415	Say Y if you need to force the assumption that CPEI can be re-targeted to
416	any cpu in the system. This hint is available via ACPI 3.0 specifications.
417	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
418	This option it useful to enable this feature on older BIOS's as well.
419	You can also enable this by using boot command line option force_cpei=1.
420
421source "kernel/Kconfig.preempt"
422
423source "mm/Kconfig"
424
425config ARCH_SELECT_MEMORY_MODEL
426	def_bool y
427
428config ARCH_DISCONTIGMEM_ENABLE
429	def_bool y
430	help
431	  Say Y to support efficient handling of discontiguous physical memory,
432	  for architectures which are either NUMA (Non-Uniform Memory Access)
433	  or have huge holes in the physical address space for other reasons.
434 	  See <file:Documentation/vm/numa> for more.
435
436config ARCH_FLATMEM_ENABLE
437	def_bool y
438
439config ARCH_SPARSEMEM_ENABLE
440	def_bool y
441	depends on ARCH_DISCONTIGMEM_ENABLE
442	select SPARSEMEM_VMEMMAP_ENABLE
443
444config ARCH_DISCONTIGMEM_DEFAULT
445	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
446	depends on ARCH_DISCONTIGMEM_ENABLE
447
448config NUMA
449	bool "NUMA support"
450	depends on !IA64_HP_SIM && !FLATMEM
451	default y if IA64_SGI_SN2
452	select ACPI_NUMA if ACPI
453	help
454	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
455	  Access).  This option is for configuring high-end multiprocessor
456	  server systems.  If in doubt, say N.
457
458config NODES_SHIFT
459	int "Max num nodes shift(3-10)"
460	range 3 10
461	default "10"
462	depends on NEED_MULTIPLE_NODES
463	help
464	  This option specifies the maximum number of nodes in your SSI system.
465	  MAX_NUMNODES will be 2^(This value).
466	  If in doubt, use the default.
467
468# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
469# VIRTUAL_MEM_MAP has been retained for historical reasons.
470config VIRTUAL_MEM_MAP
471	bool "Virtual mem map"
472	depends on !SPARSEMEM
473	default y if !IA64_HP_SIM
474	help
475	  Say Y to compile the kernel with support for a virtual mem map.
476	  This code also only takes effect if a memory hole of greater than
477	  1 Gb is found during boot.  You must turn this option on if you
478	  require the DISCONTIGMEM option for your machine. If you are
479	  unsure, say Y.
480
481config HOLES_IN_ZONE
482	bool
483	default y if VIRTUAL_MEM_MAP
484
485config HAVE_ARCH_EARLY_PFN_TO_NID
486	def_bool NUMA && SPARSEMEM
487
488config HAVE_ARCH_NODEDATA_EXTENSION
489	def_bool y
490	depends on NUMA
491
492config USE_PERCPU_NUMA_NODE_ID
493	def_bool y
494	depends on NUMA
495
496config HAVE_MEMORYLESS_NODES
497	def_bool NUMA
498
499config ARCH_PROC_KCORE_TEXT
500	def_bool y
501	depends on PROC_KCORE
502
503config IA64_MCA_RECOVERY
504	tristate "MCA recovery from errors other than TLB."
505
506config PERFMON
507	bool "Performance monitor support"
508	help
509	  Selects whether support for the IA-64 performance monitor hardware
510	  is included in the kernel.  This makes some kernel data-structures a
511	  little bigger and slows down execution a bit, but it is generally
512	  a good idea to turn this on.  If you're unsure, say Y.
513
514config IA64_PALINFO
515	tristate "/proc/pal support"
516	help
517	  If you say Y here, you are able to get PAL (Processor Abstraction
518	  Layer) information in /proc/pal.  This contains useful information
519	  about the processors in your systems, such as cache and TLB sizes
520	  and the PAL firmware version in use.
521
522	  To use this option, you have to ensure that the "/proc file system
523	  support" (CONFIG_PROC_FS) is enabled, too.
524
525config IA64_MC_ERR_INJECT
526	tristate "MC error injection support"
527	help
528	  Adds support for MC error injection. If enabled, the kernel
529	  will provide a sysfs interface for user applications to
530	  call MC error injection PAL procedures to inject various errors.
531	  This is a useful tool for MCA testing.
532
533	  If you're unsure, do not select this option.
534
535config SGI_SN
536	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
537
538config IA64_ESI
539	bool "ESI (Extensible SAL Interface) support"
540	help
541	  If you say Y here, support is built into the kernel to
542	  make ESI calls.  ESI calls are used to support vendor-specific
543	  firmware extensions, such as the ability to inject memory-errors
544	  for test-purposes.  If you're unsure, say N.
545
546config IA64_HP_AML_NFW
547	bool "Support ACPI AML calls to native firmware"
548	help
549	  This driver installs a global ACPI Operation Region handler for
550	  region 0xA1.  AML methods can use this OpRegion to call arbitrary
551	  native firmware functions.  The driver installs the OpRegion
552	  handler if there is an HPQ5001 device or if the user supplies
553	  the "force" module parameter, e.g., with the "aml_nfw.force"
554	  kernel command line option.
555
556source "drivers/sn/Kconfig"
557
558config KEXEC
559	bool "kexec system call"
560	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
561	help
562	  kexec is a system call that implements the ability to shutdown your
563	  current kernel, and to start another kernel.  It is like a reboot
564	  but it is independent of the system firmware.   And like a reboot
565	  you can start any kernel with it, not just Linux.
566
567	  The name comes from the similarity to the exec system call.
568
569	  It is an ongoing process to be certain the hardware in a machine
570	  is properly shutdown, so do not be surprised if this code does not
571	  initially work for you.  It may help to enable device hotplugging
572	  support.  As of this writing the exact hardware interface is
573	  strongly in flux, so no good recommendation can be made.
574
575config CRASH_DUMP
576	  bool "kernel crash dumps"
577	  depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
578	  help
579	    Generate crash dump after being started by kexec.
580
581source "drivers/firmware/Kconfig"
582
583source "fs/Kconfig.binfmt"
584
585endmenu
586
587menu "Power management and ACPI options"
588
589source "kernel/power/Kconfig"
590
591source "drivers/acpi/Kconfig"
592
593if PM
594
595source "arch/ia64/kernel/cpufreq/Kconfig"
596
597endif
598
599endmenu
600
601if !IA64_HP_SIM
602
603menu "Bus options (PCI, PCMCIA)"
604
605config PCI
606	bool "PCI support"
607	help
608	  Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
609	  here unless you are using a simulator without PCI support.
610
611config PCI_DOMAINS
612	def_bool PCI
613
614config PCI_SYSCALL
615	def_bool PCI
616
617source "drivers/pci/pcie/Kconfig"
618
619source "drivers/pci/Kconfig"
620
621source "drivers/pci/hotplug/Kconfig"
622
623source "drivers/pcmcia/Kconfig"
624
625endmenu
626
627endif
628
629source "net/Kconfig"
630
631source "drivers/Kconfig"
632
633source "arch/ia64/hp/sim/Kconfig"
634
635config MSPEC
636	tristate "Memory special operations driver"
637	depends on IA64
638	select IA64_UNCACHED_ALLOCATOR
639	help
640	  If you have an ia64 and you want to enable memory special
641	  operations support (formerly known as fetchop), say Y here,
642	  otherwise say N.
643
644source "fs/Kconfig"
645
646source "arch/ia64/Kconfig.debug"
647
648source "security/Kconfig"
649
650source "crypto/Kconfig"
651
652source "arch/ia64/kvm/Kconfig"
653
654source "lib/Kconfig"
655
656config IOMMU_HELPER
657	def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB)
658