1
2config PARISC
3 def_bool y
4 select ARCH_32BIT_OFF_T if !64BIT
5 select ARCH_MIGHT_HAVE_PC_PARPORT
6 select HAVE_IDE
7 select HAVE_OPROFILE
8 select HAVE_FUNCTION_TRACER
9 select HAVE_FUNCTION_GRAPH_TRACER
10 select HAVE_SYSCALL_TRACEPOINTS
11 select ARCH_WANT_FRAME_POINTERS
12 select ARCH_HAS_ELF_RANDOMIZE
13 select ARCH_HAS_STRICT_KERNEL_RWX
14 select ARCH_HAS_UBSAN_SANITIZE_ALL
15 select ARCH_NO_SG_CHAIN
16 select ARCH_SUPPORTS_MEMORY_FAILURE
17 select DMA_OPS
18 select RTC_CLASS
19 select RTC_DRV_GENERIC
20 select INIT_ALL_POSSIBLE
21 select BUG
22 select BUILDTIME_TABLE_SORT
23 select HAVE_PCI
24 select HAVE_PERF_EVENTS
25 select HAVE_KERNEL_BZIP2
26 select HAVE_KERNEL_GZIP
27 select HAVE_KERNEL_LZ4
28 select HAVE_KERNEL_LZMA
29 select HAVE_KERNEL_LZO
30 select HAVE_KERNEL_XZ
31 select GENERIC_ATOMIC64 if !64BIT
32 select GENERIC_IRQ_PROBE
33 select GENERIC_PCI_IOMAP
34 select ARCH_HAVE_NMI_SAFE_CMPXCHG
35 select GENERIC_SMP_IDLE_THREAD
36 select GENERIC_CPU_DEVICES
37 select GENERIC_STRNCPY_FROM_USER
38 select SYSCTL_ARCH_UNALIGN_ALLOW
39 select SYSCTL_EXCEPTION_TRACE
40 select HAVE_MOD_ARCH_SPECIFIC
41 select VIRT_TO_BUS
42 select MODULES_USE_ELF_RELA
43 select CLONE_BACKWARDS
44 select TTY
45 select HAVE_DEBUG_STACKOVERFLOW
46 select HAVE_ARCH_AUDITSYSCALL
47 select HAVE_ARCH_HASH
48 select HAVE_ARCH_JUMP_LABEL
49 select HAVE_ARCH_JUMP_LABEL_RELATIVE
50 select HAVE_ARCH_SECCOMP_FILTER
51 select HAVE_ARCH_TRACEHOOK
52 select HAVE_REGS_AND_STACK_ACCESS_API
53 select GENERIC_SCHED_CLOCK
54 select HAVE_UNSTABLE_SCHED_CLOCK if SMP
55 select GENERIC_CLOCKEVENTS
56 select CPU_NO_EFFICIENT_FFS
57 select NEED_DMA_MAP_STATE
58 select NEED_SG_DMA_LENGTH
59 select HAVE_ARCH_KGDB
60 select HAVE_KPROBES
61 select HAVE_KRETPROBES
62 select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1)
63 select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE
64 select HAVE_KPROBES_ON_FTRACE
65 select HAVE_DYNAMIC_FTRACE_WITH_REGS
66 select SET_FS
67
68 help
69 The PA-RISC microprocessor is designed by Hewlett-Packard and used
70 in many of their workstations & servers (HP9000 700 and 800 series,
71 and later HP3000 series). The PA-RISC Linux project home page is
72 at <https://parisc.wiki.kernel.org>.
73
74config CPU_BIG_ENDIAN
75 def_bool y
76
77config MMU
78 def_bool y
79
80config STACK_GROWSUP
81 def_bool y
82
83config ARCH_DEFCONFIG
84 string
85 default "arch/parisc/configs/generic-32bit_defconfig" if !64BIT
86 default "arch/parisc/configs/generic-64bit_defconfig" if 64BIT
87
88config GENERIC_LOCKBREAK
89 bool
90 default y
91 depends on SMP && PREEMPTION
92
93config ARCH_HAS_ILOG2_U32
94 bool
95 default n
96
97config ARCH_HAS_ILOG2_U64
98 bool
99 default n
100
101config GENERIC_BUG
102 bool
103 default y
104 depends on BUG
105
106config GENERIC_HWEIGHT
107 bool
108 default y
109
110config GENERIC_CALIBRATE_DELAY
111 bool
112 default y
113
114config TIME_LOW_RES
115 bool
116 depends on SMP
117 default y
118
119
120config PM
121 bool
122
123config STACKTRACE_SUPPORT
124 def_bool y
125
126config ISA_DMA_API
127 bool
128
129config ARCH_MAY_HAVE_PC_FDC
130 bool
131 depends on BROKEN
132 default y
133
134config PGTABLE_LEVELS
135 int
136 default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
137 default 2
138
139config SYS_SUPPORTS_HUGETLBFS
140 def_bool y if PA20
141
142
143menu "Processor type and features"
144
145choice
146 prompt "Processor type"
147 default PA7000
148
149config PA7000
150 bool "PA7000/PA7100"
151 help
152 This is the processor type of your CPU. This information is
153 used for optimizing purposes. In order to compile a kernel
154 that can run on all 32-bit PA CPUs (albeit not optimally fast),
155 you can specify "PA7000" here.
156
157 Specifying "PA8000" here will allow you to select a 64-bit kernel
158 which is required on some machines.
159
160config PA7100LC
161 bool "PA7100LC"
162 help
163 Select this option for the PCX-L processor, as used in the
164 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
165 D200, D210, D300, D310 and E-class
166
167config PA7200
168 bool "PA7200"
169 help
170 Select this option for the PCX-T' processor, as used in the
171 C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
172 K100, K200, K210, K220, K400, K410 and K420
173
174config PA7300LC
175 bool "PA7300LC"
176 help
177 Select this option for the PCX-L2 processor, as used in the
178 744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
179 D220, D230, D320 and D330.
180
181config PA8X00
182 bool "PA8000 and up"
183 help
184 Select this option for PCX-U to PCX-W2 processors.
185
186endchoice
187
188
189
190config PA20
191 def_bool y
192 depends on PA8X00
193
194config PA11
195 def_bool y
196 depends on PA7000 || PA7100LC || PA7200 || PA7300LC
197 select ARCH_HAS_SYNC_DMA_FOR_CPU
198 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
199
200config PREFETCH
201 def_bool y
202 depends on PA8X00 || PA7200
203
204config MLONGCALLS
205 bool "Enable the -mlong-calls compiler option for big kernels"
206 default y if !MODULES || UBSAN || FTRACE
207 default n
208 depends on PA8X00
209 help
210 If you configure the kernel to include many drivers built-in instead
211 as modules, the kernel executable may become too big, so that the
212 linker will not be able to resolve some long branches and fails to link
213 your vmlinux kernel. In that case enabling this option will help you
214 to overcome this limit by using the -mlong-calls compiler option.
215
216 Usually you want to say N here, unless you e.g. want to build
217 a kernel which includes all necessary drivers built-in and which can
218 be used for TFTP booting without the need to have an initrd ramdisk.
219
220 Enabling this option will probably slow down your kernel.
221
222config 64BIT
223 bool "64-bit kernel"
224 depends on PA8X00
225 help
226 Enable this if you want to support 64bit kernel on PA-RISC platform.
227
228 At the moment, only people willing to use more than 2GB of RAM,
229 or having a 64bit-only capable PA-RISC machine should say Y here.
230
231 Since there is no 64bit userland on PA-RISC, there is no point to
232 enable this option otherwise. The 64bit kernel is significantly bigger
233 and slower than the 32bit one.
234
235choice
236 prompt "Kernel page size"
237 default PARISC_PAGE_SIZE_4KB
238
239config PARISC_PAGE_SIZE_4KB
240 bool "4KB"
241 help
242 This lets you select the page size of the kernel. For best
243 performance, a page size of 16KB is recommended. For best
244 compatibility with 32bit applications, a page size of 4KB should be
245 selected (the vast majority of 32bit binaries work perfectly fine
246 with a larger page size).
247
248 4KB For best 32bit compatibility
249 16KB For best performance
250 64KB For best performance, might give more overhead.
251
252 If you don't know what to do, choose 4KB.
253
254config PARISC_PAGE_SIZE_16KB
255 bool "16KB"
256 depends on PA8X00 && BROKEN
257
258config PARISC_PAGE_SIZE_64KB
259 bool "64KB"
260 depends on PA8X00 && BROKEN
261
262endchoice
263
264config PARISC_SELF_EXTRACT
265 bool "Build kernel as self-extracting executable"
266 default y
267 help
268 Say Y if you want to build the parisc kernel as a kind of
269 self-extracting executable.
270
271 If you say N here, the kernel will be compressed with gzip
272 which can be loaded by the palo bootloader directly too.
273
274 If you don't know what to do here, say Y.
275
276config SMP
277 bool "Symmetric multi-processing support"
278 help
279 This enables support for systems with more than one CPU. If you have
280 a system with only one CPU, say N. If you have a system with more
281 than one CPU, say Y.
282
283 If you say N here, the kernel will run on uni- and multiprocessor
284 machines, but will use only one CPU of a multiprocessor machine.
285 On a uniprocessor machine, the kernel will run faster if you say N.
286
287 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
288 available at <https://www.tldp.org/docs.html#howto>.
289
290 If you don't know what to do here, say N.
291
292config PARISC_CPU_TOPOLOGY
293 bool "Support cpu topology definition"
294 depends on SMP
295 default y
296 help
297 Support PARISC cpu topology definition.
298
299config SCHED_MC
300 bool "Multi-core scheduler support"
301 depends on PARISC_CPU_TOPOLOGY && PA8X00
302 help
303 Multi-core scheduler support improves the CPU scheduler's decision
304 making when dealing with multi-core CPU chips at a cost of slightly
305 increased overhead in some places. If unsure say N here.
306
307config IRQSTACKS
308 bool "Use separate kernel stacks when processing interrupts"
309 default y
310 help
311 If you say Y here the kernel will use separate kernel stacks
312 for handling hard and soft interrupts. This can help avoid
313 overflowing the process kernel stacks.
314
315config HOTPLUG_CPU
316 bool
317 default y if SMP
318
319config ARCH_SELECT_MEMORY_MODEL
320 def_bool y
321 depends on 64BIT
322
323config ARCH_SPARSEMEM_ENABLE
324 def_bool y
325 depends on 64BIT
326
327config ARCH_FLATMEM_ENABLE
328 def_bool y
329
330config ARCH_SPARSEMEM_DEFAULT
331 def_bool y
332 depends on ARCH_SPARSEMEM_ENABLE
333
334source "kernel/Kconfig.hz"
335
336config COMPAT
337 def_bool y
338 depends on 64BIT
339 select COMPAT_BINFMT_ELF if BINFMT_ELF
340
341config SYSVIPC_COMPAT
342 def_bool y
343 depends on COMPAT && SYSVIPC
344
345config AUDIT_ARCH
346 def_bool y
347
348config NR_CPUS
349 int "Maximum number of CPUs (2-32)"
350 range 2 32
351 depends on SMP
352 default "4"
353
354config KEXEC
355 bool "Kexec system call"
356 select KEXEC_CORE
357 help
358 kexec is a system call that implements the ability to shutdown your
359 current kernel, and to start another kernel. It is like a reboot
360 but it is independent of the system firmware. And like a reboot
361 you can start any kernel with it, not just Linux.
362
363 It is an ongoing process to be certain the hardware in a machine
364 shutdown, so do not be surprised if this code does not
365 initially work for you.
366
367config KEXEC_FILE
368 bool "kexec file based system call"
369 select KEXEC_CORE
370 select KEXEC_ELF
371 help
372 This enables the kexec_file_load() System call. This is
373 file based and takes file descriptors as system call argument
374 for kernel and initramfs as opposed to list of segments as
375 accepted by previous system call.
376
377endmenu
378
379source "drivers/firmware/Kconfig"
380
381source "drivers/parisc/Kconfig"
382
