blob: 52e550b45692402c4aca3ec88bc571e1002da99b [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001# SPDX-License-Identifier: GPL-2.0
Linus Torvalds1da177e2005-04-16 15:20:36 -07002config PARISC
3 def_bool y
Arnd Bergmann12700c12022-02-15 17:55:04 +01004 select ALTERNATE_USER_ADDRESS_SPACE
Yury Norov942fa982018-05-16 11:18:49 +03005 select ARCH_32BIT_OFF_T if !64BIT
Mark Salter4a24fb22013-10-07 22:14:01 -04006 select ARCH_MIGHT_HAVE_PC_PARPORT
Helge Deller366dd4e2016-04-13 22:27:22 +02007 select HAVE_FUNCTION_TRACER
8 select HAVE_FUNCTION_GRAPH_TRACER
Helge Dellerfc791682016-04-13 22:44:54 +02009 select HAVE_SYSCALL_TRACEPOINTS
Helge Deller4530c492013-02-27 00:37:12 +010010 select ARCH_WANT_FRAME_POINTERS
Helge Deller18d98a72016-10-16 00:02:27 +020011 select ARCH_HAS_ELF_RANDOMIZE
Laura Abbottad21fc42017-02-06 16:31:57 -080012 select ARCH_HAS_STRICT_KERNEL_RWX
Helge Dellere35a2ce2017-08-04 23:46:16 +020013 select ARCH_HAS_UBSAN_SANITIZE_ALL
Helge Dellerdf24e172021-12-08 11:06:52 +010014 select ARCH_HAS_PTE_SPECIAL
Christoph Hellwig7c703e52018-11-09 09:51:00 +010015 select ARCH_NO_SG_CHAIN
Anshuman Khandual855f9a82021-05-04 18:38:13 -070016 select ARCH_SUPPORTS_HUGETLBFS if PA20
Helge Deller54ac8fc2017-08-04 19:23:53 +020017 select ARCH_SUPPORTS_MEMORY_FAILURE
Helge Delleraeb1e832021-05-04 14:49:14 +020018 select ARCH_STACKWALK
Helge Deller2b41be42022-03-17 22:36:30 +010019 select ARCH_HAS_DEBUG_VM_PGTABLE
Helge Delleraeb1e832021-05-04 14:49:14 +020020 select HAVE_RELIABLE_STACKTRACE
Christoph Hellwig2f9237d2020-07-08 09:30:00 +020021 select DMA_OPS
Kyle McMartin9eb16862008-09-10 14:24:07 +000022 select RTC_CLASS
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +010023 select RTC_DRV_GENERIC
Rusty Russell98a79d62008-12-13 21:19:41 +103024 select INIT_ALL_POSSIBLE
Kyle McMartinf67d3c82009-03-25 14:09:10 +000025 select BUG
Shile Zhang10916702019-12-04 08:46:31 +080026 select BUILDTIME_TABLE_SORT
Christoph Hellwigeb01d422018-11-15 20:05:32 +010027 select HAVE_PCI
Ingo Molnarcdd6c482009-09-21 12:02:48 +020028 select HAVE_PERF_EVENTS
Helge Dellerb6adc162017-08-20 10:52:22 +020029 select HAVE_KERNEL_BZIP2
30 select HAVE_KERNEL_GZIP
31 select HAVE_KERNEL_LZ4
32 select HAVE_KERNEL_LZMA
33 select HAVE_KERNEL_LZO
34 select HAVE_KERNEL_XZ
Kyle McMartin64daa442009-07-02 13:10:29 -040035 select GENERIC_ATOMIC64 if !64BIT
Thomas Gleixner72e73af2011-01-19 20:38:30 +010036 select GENERIC_IRQ_PROBE
Michael S. Tsirkin629a8582011-11-24 21:11:16 +020037 select GENERIC_PCI_IOMAP
Huang Yingdf013ff2011-07-13 13:14:22 +080038 select ARCH_HAVE_NMI_SAFE_CMPXCHG
Thomas Gleixner9a134722012-04-20 13:05:56 +000039 select GENERIC_SMP_IDLE_THREAD
Helge Deller62773112022-03-24 19:46:50 +010040 select GENERIC_ARCH_TOPOLOGY if SMP
Helge Deller61c43942020-12-19 12:45:40 +010041 select GENERIC_LIB_DEVMEM_IS_ALLOWED
Vineet Guptabf14e3b2013-01-18 15:12:24 +053042 select SYSCTL_ARCH_UNALIGN_ALLOW
Helge Dellerfef47e22014-05-05 18:07:12 +020043 select SYSCTL_EXCEPTION_TRACE
David Howells786d35d2012-09-28 14:31:03 +093044 select HAVE_MOD_ARCH_SPECIFIC
Stephen Rothwell4febd952013-03-07 15:48:16 +110045 select VIRT_TO_BUS
David Howells786d35d2012-09-28 14:31:03 +093046 select MODULES_USE_ELF_RELA
Al Viro415bfae2012-10-26 19:59:16 -040047 select CLONE_BACKWARDS
Joe Millenbach4f73bc42013-01-17 22:44:22 -080048 select TTY # Needed for pdc_cons.c
Dave Hansend1a1dc02013-07-01 13:04:42 -070049 select HAVE_DEBUG_STACKOVERFLOW
AKASHI Takahiro7a017722014-02-25 18:16:24 +090050 select HAVE_ARCH_AUDITSYSCALL
George Spelvin773e1c52016-06-07 19:45:06 -040051 select HAVE_ARCH_HASH
Helge Deller62217beb2019-05-03 23:51:00 +020052 select HAVE_ARCH_JUMP_LABEL
53 select HAVE_ARCH_JUMP_LABEL_RELATIVE
Helge Dellerec5c1152021-10-09 22:21:49 +020054 select HAVE_ARCH_KFENCE
Helge Deller910cd322016-03-30 14:14:31 +020055 select HAVE_ARCH_SECCOMP_FILTER
Helge Deller64e2a422016-04-01 22:40:53 +020056 select HAVE_ARCH_TRACEHOOK
Helge Deller75ebedf2018-06-28 22:47:11 +020057 select HAVE_REGS_AND_STACK_ACCESS_API
Helge Deller43b1f6a2016-11-22 18:08:30 +010058 select GENERIC_SCHED_CLOCK
Helge Deller88b3aac2022-03-25 14:31:08 +010059 select GENERIC_IRQ_MIGRATION if SMP
Helge Deller43b1f6a2016-11-22 18:08:30 +010060 select HAVE_UNSTABLE_SCHED_CLOCK if SMP
Arnd Bergmann686092e2020-09-24 15:30:34 +020061 select LEGACY_TIMER_TICK
Zhaoxiu Zengfff7fb02016-05-20 17:03:57 -070062 select CPU_NO_EFFICIENT_FFS
Helge Deller2214c0e2021-10-15 10:41:03 +020063 select THREAD_INFO_IN_TASK
Christoph Hellwigf616ab52018-05-09 06:53:49 +020064 select NEED_DMA_MAP_STATE
Christoph Hellwig86596f02018-04-05 09:44:52 +020065 select NEED_SG_DMA_LENGTH
Sven Schnelleeacbfce2019-04-04 21:14:10 +020066 select HAVE_ARCH_KGDB
Sven Schnelle8858ac82019-04-07 20:10:58 +020067 select HAVE_KPROBES
Sven Schnellee0b59b72019-04-09 19:30:28 +020068 select HAVE_KRETPROBES
Sven Schnelle6ca63662019-06-05 22:32:22 +020069 select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1)
70 select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE
Sami Tolvanen3d1dc7192021-02-24 14:57:06 -080071 select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE
Sven Schnelle52a22e62019-07-23 22:37:52 +020072 select HAVE_KPROBES_ON_FTRACE
73 select HAVE_DYNAMIC_FTRACE_WITH_REGS
Thomas Gleixnercd1a41c2021-02-10 00:40:52 +010074 select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS
Masahiro Yamada4aae6832021-07-31 14:22:32 +090075 select TRACE_IRQFLAGS_SUPPORT
Christophe Leroya257cac2022-02-15 13:41:02 +010076 select HAVE_FUNCTION_DESCRIPTORS if 64BIT
Thomas Gleixner72e73af2011-01-19 20:38:30 +010077
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 help
79 The PA-RISC microprocessor is designed by Hewlett-Packard and used
80 in many of their workstations & servers (HP9000 700 and 800 series,
81 and later HP3000 series). The PA-RISC Linux project home page is
Helge Deller24289f52020-06-01 23:00:52 +020082 at <https://parisc.wiki.kernel.org>.
Linus Torvalds1da177e2005-04-16 15:20:36 -070083
Babu Moger74ad3d282017-07-06 09:34:19 -070084config CPU_BIG_ENDIAN
85 def_bool y
86
Linus Torvalds1da177e2005-04-16 15:20:36 -070087config MMU
88 def_bool y
89
90config STACK_GROWSUP
91 def_bool y
92
Nick Piggin95c354f2008-01-30 13:31:20 +010093config GENERIC_LOCKBREAK
94 bool
95 default y
Thomas Gleixner09613e82019-10-15 21:18:02 +020096 depends on SMP && PREEMPTION
Nick Piggin95c354f2008-01-30 13:31:20 +010097
David Howellsf0d1b0b2006-12-08 02:37:49 -080098config ARCH_HAS_ILOG2_U32
99 bool
100 default n
101
102config ARCH_HAS_ILOG2_U64
103 bool
104 default n
105
Helge Deller6891f8a2006-12-16 16:16:50 +0100106config GENERIC_BUG
107 bool
108 default y
109 depends on BUG
110
Akinobu Mita59e18a22006-03-26 01:39:31 -0800111config GENERIC_HWEIGHT
112 bool
113 default y
114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115config GENERIC_CALIBRATE_DELAY
116 bool
117 default y
118
Ingo Molnar06027bd2006-02-14 13:53:15 -0800119config TIME_LOW_RES
120 bool
121 depends on SMP
122 default y
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124# unless you want to implement ACPI on PA-RISC ... ;-)
125config PM
126 bool
127
Helge Deller548f1172009-02-06 21:50:39 +0100128config STACKTRACE_SUPPORT
129 def_bool y
130
Al Viro5cae841b2005-05-04 05:39:22 +0100131config ISA_DMA_API
132 bool
Al Viro5cae841b2005-05-04 05:39:22 +0100133
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100134config ARCH_MAY_HAVE_PC_FDC
135 bool
Grant Grundler8b631342005-10-21 22:52:46 -0400136 depends on BROKEN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100137 default y
138
Kirill A. Shutemovf24ffde2015-04-14 15:45:54 -0700139config PGTABLE_LEVELS
140 int
141 default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
142 default 2
143
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144menu "Processor type and features"
145
146choice
147 prompt "Processor type"
148 default PA7000
149
150config PA7000
151 bool "PA7000/PA7100"
Masahiro Yamadaa7f7f622020-06-14 01:50:22 +0900152 help
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 This is the processor type of your CPU. This information is
154 used for optimizing purposes. In order to compile a kernel
155 that can run on all 32-bit PA CPUs (albeit not optimally fast),
156 you can specify "PA7000" here.
157
158 Specifying "PA8000" here will allow you to select a 64-bit kernel
159 which is required on some machines.
160
161config PA7100LC
162 bool "PA7100LC"
163 help
164 Select this option for the PCX-L processor, as used in the
165 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
166 D200, D210, D300, D310 and E-class
167
168config PA7200
169 bool "PA7200"
170 help
171 Select this option for the PCX-T' processor, as used in the
172 C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
173 K100, K200, K210, K220, K400, K410 and K420
174
175config PA7300LC
176 bool "PA7300LC"
177 help
178 Select this option for the PCX-L2 processor, as used in the
179 744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
180 D220, D230, D320 and D330.
181
182config PA8X00
183 bool "PA8000 and up"
184 help
185 Select this option for PCX-U to PCX-W2 processors.
186
187endchoice
188
189# Define implied options from the CPU selection here
190
191config PA20
192 def_bool y
193 depends on PA8X00
194
195config PA11
196 def_bool y
197 depends on PA7000 || PA7100LC || PA7200 || PA7300LC
Christoph Hellwigc1f59372018-06-19 09:04:55 +0200198 select ARCH_HAS_SYNC_DMA_FOR_CPU
199 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201config PREFETCH
202 def_bool y
Kyle McMartin32104b22006-08-13 20:37:26 -0400203 depends on PA8X00 || PA7200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204
Helge Deller778e45d2021-03-02 21:07:07 +0100205config PARISC_HUGE_KERNEL
206 def_bool y if !MODULES || UBSAN || FTRACE || COMPILE_TEST
207
Helge Dellerec758f92013-01-31 21:44:28 +0000208config MLONGCALLS
Helge Deller778e45d2021-03-02 21:07:07 +0100209 def_bool y if PARISC_HUGE_KERNEL
210 bool "Enable the -mlong-calls compiler option for big kernels" if !PARISC_HUGE_KERNEL
Helge Dellerec758f92013-01-31 21:44:28 +0000211 depends on PA8X00
212 help
213 If you configure the kernel to include many drivers built-in instead
214 as modules, the kernel executable may become too big, so that the
215 linker will not be able to resolve some long branches and fails to link
216 your vmlinux kernel. In that case enabling this option will help you
217 to overcome this limit by using the -mlong-calls compiler option.
218
219 Usually you want to say N here, unless you e.g. want to build
220 a kernel which includes all necessary drivers built-in and which can
221 be used for TFTP booting without the need to have an initrd ramdisk.
222
223 Enabling this option will probably slow down your kernel.
224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225config 64BIT
226 bool "64-bit kernel"
227 depends on PA8X00
228 help
229 Enable this if you want to support 64bit kernel on PA-RISC platform.
230
231 At the moment, only people willing to use more than 2GB of RAM,
232 or having a 64bit-only capable PA-RISC machine should say Y here.
233
234 Since there is no 64bit userland on PA-RISC, there is no point to
235 enable this option otherwise. The 64bit kernel is significantly bigger
236 and slower than the 32bit one.
237
Helge Deller2fd83032006-04-20 20:40:23 +0000238choice
239 prompt "Kernel page size"
Paul Bolle1c5f8732011-10-12 14:51:12 +0200240 default PARISC_PAGE_SIZE_4KB
Helge Deller2fd83032006-04-20 20:40:23 +0000241
242config PARISC_PAGE_SIZE_4KB
243 bool "4KB"
244 help
245 This lets you select the page size of the kernel. For best
246 performance, a page size of 16KB is recommended. For best
247 compatibility with 32bit applications, a page size of 4KB should be
248 selected (the vast majority of 32bit binaries work perfectly fine
249 with a larger page size).
250
251 4KB For best 32bit compatibility
252 16KB For best performance
253 64KB For best performance, might give more overhead.
254
255 If you don't know what to do, choose 4KB.
256
257config PARISC_PAGE_SIZE_16KB
Kees Cookdaef22c2013-01-16 18:53:21 -0800258 bool "16KB"
Helge Dellerec5c1152021-10-09 22:21:49 +0200259 depends on PA8X00 && BROKEN && !KFENCE
Helge Deller2fd83032006-04-20 20:40:23 +0000260
261config PARISC_PAGE_SIZE_64KB
Kees Cookdaef22c2013-01-16 18:53:21 -0800262 bool "64KB"
Helge Dellerec5c1152021-10-09 22:21:49 +0200263 depends on PA8X00 && BROKEN && !KFENCE
Helge Deller2fd83032006-04-20 20:40:23 +0000264
265endchoice
266
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267config SMP
268 bool "Symmetric multi-processing support"
Masahiro Yamadaa7f7f622020-06-14 01:50:22 +0900269 help
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -0800271 a system with only one CPU, say N. If you have a system with more
272 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273
Robert Graffham4a474152014-01-23 15:55:29 -0800274 If you say N here, the kernel will run on uni- and multiprocessor
Helge Deller2a3f53d2018-03-13 20:56:16 +0100275 machines, but will use only one CPU of a multiprocessor machine.
276 On a uniprocessor machine, the kernel will run faster if you say N.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
Mauro Carvalho Chehab4f4cfa62019-06-27 14:56:51 -0300278 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
Alexander A. Klimov693a0652020-07-13 20:15:25 +0200279 available at <https://www.tldp.org/docs.html#howto>.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
281 If you don't know what to do here, say N.
282
Helge Dellerbf7b4c12017-09-21 21:55:01 +0200283config SCHED_MC
284 bool "Multi-core scheduler support"
Helge Deller62773112022-03-24 19:46:50 +0100285 depends on GENERIC_ARCH_TOPOLOGY && PA8X00
Helge Dellerbf7b4c12017-09-21 21:55:01 +0200286 help
287 Multi-core scheduler support improves the CPU scheduler's decision
288 making when dealing with multi-core CPU chips at a cost of slightly
289 increased overhead in some places. If unsure say N here.
290
Helge Deller200c8802013-05-07 20:25:42 +0000291config IRQSTACKS
292 bool "Use separate kernel stacks when processing interrupts"
Helge Deller416821d2013-05-10 21:24:01 +0000293 default y
Helge Deller200c8802013-05-07 20:25:42 +0000294 help
295 If you say Y here the kernel will use separate kernel stacks
296 for handling hard and soft interrupts. This can help avoid
297 overflowing the process kernel stacks.
298
Helge Dellerb7795072021-02-12 16:38:52 +0100299config TLB_PTLOCK
300 bool "Use page table locks in TLB fault handler"
301 depends on SMP
302 default n
303 help
304 Select this option to enable page table locking in the TLB
305 fault handler. This ensures that page table entries are
306 updated consistently on SMP machines at the expense of some
307 loss in performance.
308
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309config HOTPLUG_CPU
310 bool
311 default y if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Kyle McMartina2ba82c2006-01-27 23:59:36 -0700313config ARCH_SELECT_MEMORY_MODEL
314 def_bool y
315 depends on 64BIT
316
Helge Dellerdbdf0762019-04-09 21:52:35 +0200317config ARCH_SPARSEMEM_ENABLE
Kyle McMartina2ba82c2006-01-27 23:59:36 -0700318 def_bool y
319 depends on 64BIT
320
321config ARCH_FLATMEM_ENABLE
322 def_bool y
323
Helge Dellerdbdf0762019-04-09 21:52:35 +0200324config ARCH_SPARSEMEM_DEFAULT
Kyle McMartina2ba82c2006-01-27 23:59:36 -0700325 def_bool y
Helge Dellerdbdf0762019-04-09 21:52:35 +0200326 depends on ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -0700327
Grant Grundler8b631342005-10-21 22:52:46 -0400328source "kernel/Kconfig.hz"
Dave Hansen3f22ab22005-06-23 00:07:43 -0700329
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330config COMPAT
331 def_bool y
332 depends on 64BIT
333
Helge Dellerbf581e12013-02-19 20:47:37 +0100334config SYSVIPC_COMPAT
335 def_bool y
336 depends on COMPAT && SYSVIPC
337
Helge Deller527973c2013-10-15 19:25:46 +0200338config AUDIT_ARCH
339 def_bool y
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341config NR_CPUS
342 int "Maximum number of CPUs (2-32)"
343 range 2 32
344 depends on SMP
Helge Deller68d247a2022-01-11 11:54:48 +0100345 default "4" if 64BIT
346 default "16"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
Sven Schnellefc697dc2019-09-08 11:33:04 +0200348config KEXEC
349 bool "Kexec system call"
350 select KEXEC_CORE
351 help
352 kexec is a system call that implements the ability to shutdown your
353 current kernel, and to start another kernel. It is like a reboot
354 but it is independent of the system firmware. And like a reboot
355 you can start any kernel with it, not just Linux.
356
357 It is an ongoing process to be certain the hardware in a machine
358 shutdown, so do not be surprised if this code does not
359 initially work for you.
360
Sven Schnelle1191cf42019-09-08 11:33:06 +0200361config KEXEC_FILE
362 bool "kexec file based system call"
363 select KEXEC_CORE
364 select KEXEC_ELF
365 help
366 This enables the kexec_file_load() System call. This is
367 file based and takes file descriptors as system call argument
368 for kernel and initramfs as opposed to list of segments as
369 accepted by previous system call.
370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371endmenu
372
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373source "drivers/parisc/Kconfig"