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