xref: /openbmc/linux/arch/ia64/Kconfig (revision ba61bb17)
1# SPDX-License-Identifier: GPL-2.0
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
7source "init/Kconfig"
8
9source "kernel/Kconfig.freezer"
10
11menu "Processor type and features"
12
13config IA64
14	bool
15	select ARCH_MIGHT_HAVE_PC_PARPORT
16	select ARCH_MIGHT_HAVE_PC_SERIO
17	select PCI if (!IA64_HP_SIM)
18	select ACPI if (!IA64_HP_SIM)
19	select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
20	select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
21	select HAVE_UNSTABLE_SCHED_CLOCK
22	select HAVE_EXIT_THREAD
23	select HAVE_IDE
24	select HAVE_OPROFILE
25	select HAVE_KPROBES
26	select HAVE_KRETPROBES
27	select HAVE_FTRACE_MCOUNT_RECORD
28	select HAVE_DYNAMIC_FTRACE if (!ITANIUM)
29	select HAVE_FUNCTION_TRACER
30	select TTY
31	select HAVE_ARCH_TRACEHOOK
32	select HAVE_MEMBLOCK
33	select HAVE_MEMBLOCK_NODE_MAP
34	select HAVE_VIRT_CPU_ACCOUNTING
35	select ARCH_HAS_DMA_MARK_CLEAN
36	select ARCH_HAS_SG_CHAIN
37	select VIRT_TO_BUS
38	select ARCH_DISCARD_MEMBLOCK
39	select GENERIC_IRQ_PROBE
40	select GENERIC_PENDING_IRQ if SMP
41	select GENERIC_IRQ_SHOW
42	select GENERIC_IRQ_LEGACY
43	select ARCH_HAVE_NMI_SAFE_CMPXCHG
44	select GENERIC_IOMAP
45	select GENERIC_SMP_IDLE_THREAD
46	select ARCH_TASK_STRUCT_ON_STACK
47	select ARCH_TASK_STRUCT_ALLOCATOR
48	select ARCH_THREAD_STACK_ALLOCATOR
49	select ARCH_CLOCKSOURCE_DATA
50	select GENERIC_TIME_VSYSCALL
51	select SYSCTL_ARCH_UNALIGN_NO_WARN
52	select HAVE_MOD_ARCH_SPECIFIC
53	select MODULES_USE_ELF_RELA
54	select ARCH_USE_CMPXCHG_LOCKREF
55	select HAVE_ARCH_AUDITSYSCALL
56	select NEED_DMA_MAP_STATE
57	select NEED_SG_DMA_LENGTH
58	default y
59	help
60	  The Itanium Processor Family is Intel's 64-bit successor to
61	  the 32-bit X86 line.  The IA-64 Linux project has a home
62	  page at <http://www.linuxia64.org/> and a mailing list at
63	  <linux-ia64@vger.kernel.org>.
64
65config 64BIT
66	bool
67	select ATA_NONSTANDARD if ATA
68	default y
69
70config ZONE_DMA32
71	def_bool y
72	depends on !IA64_SGI_SN2
73
74config QUICKLIST
75	bool
76	default y
77
78config MMU
79	bool
80	default y
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 DMI
105	bool
106	default y
107	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
108
109config EFI
110	bool
111	select UCS2_STRING
112	default y
113
114config SCHED_OMIT_FRAME_POINTER
115	bool
116	default y
117
118config IA64_UNCACHED_ALLOCATOR
119	bool
120	select GENERIC_ALLOCATOR
121
122config ARCH_USES_PG_UNCACHED
123	def_bool y
124	depends on IA64_UNCACHED_ALLOCATOR
125
126config AUDIT_ARCH
127	bool
128	default y
129
130choice
131	prompt "System type"
132	default IA64_GENERIC
133
134config IA64_GENERIC
135	bool "generic"
136	select NUMA
137	select ACPI_NUMA
138	select SWIOTLB
139	select PCI_MSI
140	help
141	  This selects the system type of your hardware.  A "generic" kernel
142	  will run on any supported IA-64 system.  However, if you configure
143	  a kernel for your specific system, it will be faster and smaller.
144
145	  generic		For any supported IA-64 system
146	  DIG-compliant		For DIG ("Developer's Interface Guide") compliant systems
147	  DIG+Intel+IOMMU	For DIG systems with Intel IOMMU
148	  HP-zx1/sx1000		For HP systems
149	  HP-zx1/sx1000+swiotlb	For HP systems with (broken) DMA-constrained devices.
150	  SGI-SN2		For SGI Altix systems
151	  SGI-UV		For SGI UV systems
152	  Ski-simulator		For the HP simulator <http://www.hpl.hp.com/research/linux/ski/>
153
154	  If you don't know what to do, choose "generic".
155
156config IA64_DIG
157	bool "DIG-compliant"
158	select SWIOTLB
159
160config IA64_DIG_VTD
161	bool "DIG+Intel+IOMMU"
162	select INTEL_IOMMU
163	select PCI_MSI
164
165config IA64_HP_ZX1
166	bool "HP-zx1/sx1000"
167	help
168	  Build a kernel that runs on HP zx1 and sx1000 systems.  This adds
169	  support for the HP I/O MMU.
170
171config IA64_HP_ZX1_SWIOTLB
172	bool "HP-zx1/sx1000 with software I/O TLB"
173	select SWIOTLB
174	help
175	  Build a kernel that runs on HP zx1 and sx1000 systems even when they
176	  have broken PCI devices which cannot DMA to full 32 bits.  Apart
177	  from support for the HP I/O MMU, this includes support for the software
178	  I/O TLB, which allows supporting the broken devices at the expense of
179	  wasting some kernel memory (about 2MB by default).
180
181config IA64_SGI_SN2
182	bool "SGI-SN2"
183	select NUMA
184	select ACPI_NUMA
185	help
186	  Selecting this option will optimize the kernel for use on sn2 based
187	  systems, but the resulting kernel binary will not run on other
188	  types of ia64 systems.  If you have an SGI Altix system, it's safe
189	  to select this option.  If in doubt, select ia64 generic support
190	  instead.
191
192config IA64_SGI_UV
193	bool "SGI-UV"
194	select NUMA
195	select ACPI_NUMA
196	select SWIOTLB
197	help
198	  Selecting this option will optimize the kernel for use on UV based
199	  systems, but the resulting kernel binary will not run on other
200	  types of ia64 systems.  If you have an SGI UV system, it's safe
201	  to select this option.  If in doubt, select ia64 generic support
202	  instead.
203
204config IA64_HP_SIM
205	bool "Ski-simulator"
206	select SWIOTLB
207	depends on !PM
208
209endchoice
210
211choice
212	prompt "Processor type"
213	default ITANIUM
214
215config ITANIUM
216	bool "Itanium"
217	help
218	  Select your IA-64 processor type.  The default is Itanium.
219	  This choice is safe for all IA-64 systems, but may not perform
220	  optimally on systems with, say, Itanium 2 or newer processors.
221
222config MCKINLEY
223	bool "Itanium 2"
224	help
225	  Select this to configure for an Itanium 2 (McKinley) processor.
226
227endchoice
228
229choice
230	prompt "Kernel page size"
231	default IA64_PAGE_SIZE_16KB
232
233config IA64_PAGE_SIZE_4KB
234	bool "4KB"
235	help
236	  This lets you select the page size of the kernel.  For best IA-64
237	  performance, a page size of 8KB or 16KB is recommended.  For best
238	  IA-32 compatibility, a page size of 4KB should be selected (the vast
239	  majority of IA-32 binaries work perfectly fine with a larger page
240	  size).  For Itanium 2 or newer systems, a page size of 64KB can also
241	  be selected.
242
243	  4KB                For best IA-32 compatibility
244	  8KB                For best IA-64 performance
245	  16KB               For best IA-64 performance
246	  64KB               Requires Itanium 2 or newer processor.
247
248	  If you don't know what to do, choose 16KB.
249
250config IA64_PAGE_SIZE_8KB
251	bool "8KB"
252
253config IA64_PAGE_SIZE_16KB
254	bool "16KB"
255
256config IA64_PAGE_SIZE_64KB
257	depends on !ITANIUM
258	bool "64KB"
259
260endchoice
261
262if IA64_HP_SIM
263config HZ
264	default 32
265endif
266
267if !IA64_HP_SIM
268source kernel/Kconfig.hz
269endif
270
271config IA64_BRL_EMU
272	bool
273	depends on ITANIUM
274	default y
275
276# align cache-sensitive data to 128 bytes
277config IA64_L1_CACHE_SHIFT
278	int
279	default "7" if MCKINLEY
280	default "6" if ITANIUM
281
282config IA64_CYCLONE
283	bool "Cyclone (EXA) Time Source support"
284	help
285	  Say Y here to enable support for IBM EXA Cyclone time source.
286	  If you're unsure, answer N.
287
288config IOSAPIC
289	bool
290	depends on !IA64_HP_SIM
291	default y
292
293config FORCE_MAX_ZONEORDER
294	int "MAX_ORDER (11 - 17)"  if !HUGETLB_PAGE
295	range 11 17  if !HUGETLB_PAGE
296	default "17" if HUGETLB_PAGE
297	default "11"
298
299config SMP
300	bool "Symmetric multi-processing support"
301	help
302	  This enables support for systems with more than one CPU. If you have
303	  a system with only one CPU, say N.  If you have a system with more
304	  than one CPU, say Y.
305
306	  If you say N here, the kernel will run on single and multiprocessor
307	  systems, but will use only one CPU of a multiprocessor system.  If
308	  you say Y here, the kernel will run on many, but not all,
309	  single processor systems.  On a single processor system, the kernel
310	  will run faster if you say N here.
311
312	  See also the SMP-HOWTO available at
313	  <http://www.tldp.org/docs.html#howto>.
314
315	  If you don't know what to do here, say N.
316
317config NR_CPUS
318	int "Maximum number of CPUs (2-4096)"
319	range 2 4096
320	depends on SMP
321	default "4096"
322	help
323	  You should set this to the number of CPUs in your system, but
324	  keep in mind that a kernel compiled for, e.g., 2 CPUs will boot but
325	  only use 2 CPUs on a >2 CPU system.  Setting this to a value larger
326	  than 64 will cause the use of a CPU mask array, causing a small
327	  performance hit.
328
329config HOTPLUG_CPU
330	bool "Support for hot-pluggable CPUs"
331	depends on SMP
332	default n
333	---help---
334	  Say Y here to experiment with turning CPUs off and on.  CPUs
335	  can be controlled through /sys/devices/system/cpu/cpu#.
336	  Say N if you want to disable CPU hotplug.
337
338config ARCH_ENABLE_MEMORY_HOTPLUG
339	def_bool y
340
341config ARCH_ENABLE_MEMORY_HOTREMOVE
342	def_bool y
343
344config SCHED_SMT
345	bool "SMT scheduler support"
346	depends on SMP
347	help
348	  Improves the CPU scheduler's decision making when dealing with
349	  Intel IA64 chips with MultiThreading at a cost of slightly increased
350	  overhead in some places. If unsure say N here.
351
352config PERMIT_BSP_REMOVE
353	bool "Support removal of Bootstrap Processor"
354	depends on HOTPLUG_CPU
355	default n
356	---help---
357	Say Y here if your platform SAL will support removal of BSP with HOTPLUG_CPU
358	support.
359
360config FORCE_CPEI_RETARGET
361	bool "Force assumption that CPEI can be re-targeted"
362	depends on PERMIT_BSP_REMOVE
363	default n
364	---help---
365	Say Y if you need to force the assumption that CPEI can be re-targeted to
366	any cpu in the system. This hint is available via ACPI 3.0 specifications.
367	Tiger4 systems are capable of re-directing CPEI to any CPU other than BSP.
368	This option it useful to enable this feature on older BIOS's as well.
369	You can also enable this by using boot command line option force_cpei=1.
370
371source "kernel/Kconfig.preempt"
372
373source "mm/Kconfig"
374
375config ARCH_SELECT_MEMORY_MODEL
376	def_bool y
377
378config ARCH_DISCONTIGMEM_ENABLE
379	def_bool y
380	help
381	  Say Y to support efficient handling of discontiguous physical memory,
382	  for architectures which are either NUMA (Non-Uniform Memory Access)
383	  or have huge holes in the physical address space for other reasons.
384	  See <file:Documentation/vm/numa.rst> for more.
385
386config ARCH_FLATMEM_ENABLE
387	def_bool y
388
389config ARCH_SPARSEMEM_ENABLE
390	def_bool y
391	depends on ARCH_DISCONTIGMEM_ENABLE
392	select SPARSEMEM_VMEMMAP_ENABLE
393
394config ARCH_DISCONTIGMEM_DEFAULT
395	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
396	depends on ARCH_DISCONTIGMEM_ENABLE
397
398config NUMA
399	bool "NUMA support"
400	depends on !IA64_HP_SIM && !FLATMEM
401	default y if IA64_SGI_SN2
402	select ACPI_NUMA if ACPI
403	help
404	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
405	  Access).  This option is for configuring high-end multiprocessor
406	  server systems.  If in doubt, say N.
407
408config NODES_SHIFT
409	int "Max num nodes shift(3-10)"
410	range 3 10
411	default "10"
412	depends on NEED_MULTIPLE_NODES
413	help
414	  This option specifies the maximum number of nodes in your SSI system.
415	  MAX_NUMNODES will be 2^(This value).
416	  If in doubt, use the default.
417
418# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
419# VIRTUAL_MEM_MAP has been retained for historical reasons.
420config VIRTUAL_MEM_MAP
421	bool "Virtual mem map"
422	depends on !SPARSEMEM
423	default y if !IA64_HP_SIM
424	help
425	  Say Y to compile the kernel with support for a virtual mem map.
426	  This code also only takes effect if a memory hole of greater than
427	  1 Gb is found during boot.  You must turn this option on if you
428	  require the DISCONTIGMEM option for your machine. If you are
429	  unsure, say Y.
430
431config HOLES_IN_ZONE
432	bool
433	default y if VIRTUAL_MEM_MAP
434
435config HAVE_ARCH_EARLY_PFN_TO_NID
436	def_bool NUMA && SPARSEMEM
437
438config HAVE_ARCH_NODEDATA_EXTENSION
439	def_bool y
440	depends on NUMA
441
442config USE_PERCPU_NUMA_NODE_ID
443	def_bool y
444	depends on NUMA
445
446config HAVE_MEMORYLESS_NODES
447	def_bool NUMA
448
449config ARCH_PROC_KCORE_TEXT
450	def_bool y
451	depends on PROC_KCORE
452
453config IA64_MCA_RECOVERY
454	tristate "MCA recovery from errors other than TLB."
455
456config PERFMON
457	bool "Performance monitor support"
458	depends on BROKEN
459	help
460	  Selects whether support for the IA-64 performance monitor hardware
461	  is included in the kernel.  This makes some kernel data-structures a
462	  little bigger and slows down execution a bit, but it is generally
463	  a good idea to turn this on.  If you're unsure, say Y.
464
465config IA64_PALINFO
466	tristate "/proc/pal support"
467	help
468	  If you say Y here, you are able to get PAL (Processor Abstraction
469	  Layer) information in /proc/pal.  This contains useful information
470	  about the processors in your systems, such as cache and TLB sizes
471	  and the PAL firmware version in use.
472
473	  To use this option, you have to ensure that the "/proc file system
474	  support" (CONFIG_PROC_FS) is enabled, too.
475
476config IA64_MC_ERR_INJECT
477	tristate "MC error injection support"
478	help
479	  Adds support for MC error injection. If enabled, the kernel
480	  will provide a sysfs interface for user applications to
481	  call MC error injection PAL procedures to inject various errors.
482	  This is a useful tool for MCA testing.
483
484	  If you're unsure, do not select this option.
485
486config SGI_SN
487	def_bool y if (IA64_SGI_SN2 || IA64_GENERIC)
488
489config IA64_ESI
490	bool "ESI (Extensible SAL Interface) support"
491	help
492	  If you say Y here, support is built into the kernel to
493	  make ESI calls.  ESI calls are used to support vendor-specific
494	  firmware extensions, such as the ability to inject memory-errors
495	  for test-purposes.  If you're unsure, say N.
496
497config IA64_HP_AML_NFW
498	bool "Support ACPI AML calls to native firmware"
499	help
500	  This driver installs a global ACPI Operation Region handler for
501	  region 0xA1.  AML methods can use this OpRegion to call arbitrary
502	  native firmware functions.  The driver installs the OpRegion
503	  handler if there is an HPQ5001 device or if the user supplies
504	  the "force" module parameter, e.g., with the "aml_nfw.force"
505	  kernel command line option.
506
507source "drivers/sn/Kconfig"
508
509config KEXEC
510	bool "kexec system call"
511	depends on !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
512	select KEXEC_CORE
513	help
514	  kexec is a system call that implements the ability to shutdown your
515	  current kernel, and to start another kernel.  It is like a reboot
516	  but it is independent of the system firmware.   And like a reboot
517	  you can start any kernel with it, not just Linux.
518
519	  The name comes from the similarity to the exec system call.
520
521	  It is an ongoing process to be certain the hardware in a machine
522	  is properly shutdown, so do not be surprised if this code does not
523	  initially work for you.  As of this writing the exact hardware
524	  interface is strongly in flux, so no good recommendation can be
525	  made.
526
527config CRASH_DUMP
528	  bool "kernel crash dumps"
529	  depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU)
530	  help
531	    Generate crash dump after being started by kexec.
532
533source "drivers/firmware/Kconfig"
534
535source "fs/Kconfig.binfmt"
536
537endmenu
538
539menu "Power management and ACPI options"
540
541source "kernel/power/Kconfig"
542
543source "drivers/acpi/Kconfig"
544
545if PM
546menu "CPU Frequency scaling"
547source "drivers/cpufreq/Kconfig"
548endmenu
549endif
550
551endmenu
552
553if !IA64_HP_SIM
554
555menu "Bus options (PCI, PCMCIA)"
556
557config PCI
558	bool "PCI support"
559	help
560	  Real IA-64 machines all have PCI/PCI-X/PCI Express busses.  Say Y
561	  here unless you are using a simulator without PCI support.
562
563config PCI_DOMAINS
564	def_bool PCI
565
566config PCI_SYSCALL
567	def_bool PCI
568
569source "drivers/pci/Kconfig"
570
571source "drivers/pcmcia/Kconfig"
572
573endmenu
574
575endif
576
577source "net/Kconfig"
578
579source "drivers/Kconfig"
580
581source "arch/ia64/hp/sim/Kconfig"
582
583config MSPEC
584	tristate "Memory special operations driver"
585	depends on IA64
586	select IA64_UNCACHED_ALLOCATOR
587	help
588	  If you have an ia64 and you want to enable memory special
589	  operations support (formerly known as fetchop), say Y here,
590	  otherwise say N.
591
592source "fs/Kconfig"
593
594source "arch/ia64/Kconfig.debug"
595
596source "security/Kconfig"
597
598source "crypto/Kconfig"
599
600source "lib/Kconfig"
601