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
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# align cache-sensitive data to 128 bytes
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