Commit | Line | Data |
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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | config PARISC |
3 | def_bool y | |
942fa985 | 4 | select ARCH_32BIT_OFF_T if !64BIT |
4a24fb2f | 5 | select ARCH_MIGHT_HAVE_PC_PARPORT |
ec7748b5 | 6 | select HAVE_IDE |
42d4b839 | 7 | select HAVE_OPROFILE |
366dd4ea HD |
8 | select HAVE_FUNCTION_TRACER |
9 | select HAVE_FUNCTION_GRAPH_TRACER | |
fc79168a | 10 | select HAVE_SYSCALL_TRACEPOINTS |
4530c49e | 11 | select ARCH_WANT_FRAME_POINTERS |
18d98a79 | 12 | select ARCH_HAS_ELF_RANDOMIZE |
ad21fc4f | 13 | select ARCH_HAS_STRICT_KERNEL_RWX |
e35a2ce6 | 14 | select ARCH_HAS_UBSAN_SANITIZE_ALL |
7c703e54 | 15 | select ARCH_NO_SG_CHAIN |
54ac8fcb | 16 | select ARCH_SUPPORTS_MEMORY_FAILURE |
9eb16864 | 17 | select RTC_CLASS |
3afe6d04 | 18 | select RTC_DRV_GENERIC |
98a79d6a | 19 | select INIT_ALL_POSSIBLE |
f67d3c83 | 20 | select BUG |
10916706 | 21 | select BUILDTIME_TABLE_SORT |
eb01d42a | 22 | select HAVE_PCI |
cdd6c482 | 23 | select HAVE_PERF_EVENTS |
b6adc16e HD |
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 | |
64daa443 | 30 | select GENERIC_ATOMIC64 if !64BIT |
72e73af1 | 31 | select GENERIC_IRQ_PROBE |
629a8581 | 32 | select GENERIC_PCI_IOMAP |
df013ffb | 33 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
9a134723 | 34 | select GENERIC_SMP_IDLE_THREAD |
bf7b4c1b | 35 | select GENERIC_CPU_DEVICES |
b1195c0e | 36 | select GENERIC_STRNCPY_FROM_USER |
bf14e3b9 | 37 | select SYSCTL_ARCH_UNALIGN_ALLOW |
fef47e2a | 38 | select SYSCTL_EXCEPTION_TRACE |
786d35d4 | 39 | select HAVE_MOD_ARCH_SPECIFIC |
4febd95a | 40 | select VIRT_TO_BUS |
786d35d4 | 41 | select MODULES_USE_ELF_RELA |
415bfae9 | 42 | select CLONE_BACKWARDS |
4f73bc4d | 43 | select TTY # Needed for pdc_cons.c |
d1a1dc0b | 44 | select HAVE_DEBUG_STACKOVERFLOW |
7a017721 | 45 | select HAVE_ARCH_AUDITSYSCALL |
773e1c5f | 46 | select HAVE_ARCH_HASH |
62217beb HD |
47 | select HAVE_ARCH_JUMP_LABEL |
48 | select HAVE_ARCH_JUMP_LABEL_RELATIVE | |
910cd32e | 49 | select HAVE_ARCH_SECCOMP_FILTER |
64e2a42b | 50 | select HAVE_ARCH_TRACEHOOK |
75ebedf1 | 51 | select HAVE_REGS_AND_STACK_ACCESS_API |
43b1f6ab HD |
52 | select GENERIC_SCHED_CLOCK |
53 | select HAVE_UNSTABLE_SCHED_CLOCK if SMP | |
54 | select GENERIC_CLOCKEVENTS | |
fff7fb0b | 55 | select CPU_NO_EFFICIENT_FFS |
f616ab59 | 56 | select NEED_DMA_MAP_STATE |
86596f0a | 57 | select NEED_SG_DMA_LENGTH |
eacbfce1 | 58 | select HAVE_ARCH_KGDB |
8858ac8e | 59 | select HAVE_KPROBES |
e0b59b7b | 60 | select HAVE_KRETPROBES |
6ca63662 SS |
61 | select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1) |
62 | select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE | |
52a22e6c SS |
63 | select HAVE_KPROBES_ON_FTRACE |
64 | select HAVE_DYNAMIC_FTRACE_WITH_REGS | |
d2f36c78 | 65 | select HAVE_COPY_THREAD_TLS |
72e73af1 | 66 | |
1da177e4 LT |
67 | help |
68 | The PA-RISC microprocessor is designed by Hewlett-Packard and used | |
69 | in many of their workstations & servers (HP9000 700 and 800 series, | |
70 | and later HP3000 series). The PA-RISC Linux project home page is | |
24289f56 | 71 | at <https://parisc.wiki.kernel.org>. |
1da177e4 | 72 | |
74ad3d28 BM |
73 | config CPU_BIG_ENDIAN |
74 | def_bool y | |
75 | ||
1da177e4 LT |
76 | config MMU |
77 | def_bool y | |
78 | ||
79 | config STACK_GROWSUP | |
80 | def_bool y | |
81 | ||
ededa081 HD |
82 | config ARCH_DEFCONFIG |
83 | string | |
84 | default "arch/parisc/configs/generic-32bit_defconfig" if !64BIT | |
85 | default "arch/parisc/configs/generic-64bit_defconfig" if 64BIT | |
86 | ||
95c354fe NP |
87 | config GENERIC_LOCKBREAK |
88 | bool | |
89 | default y | |
09613e83 | 90 | depends on SMP && PREEMPTION |
95c354fe | 91 | |
f0d1b0b3 DH |
92 | config ARCH_HAS_ILOG2_U32 |
93 | bool | |
94 | default n | |
95 | ||
96 | config ARCH_HAS_ILOG2_U64 | |
97 | bool | |
98 | default n | |
99 | ||
6891f8a1 HD |
100 | config GENERIC_BUG |
101 | bool | |
102 | default y | |
103 | depends on BUG | |
104 | ||
59e18a2e AM |
105 | config GENERIC_HWEIGHT |
106 | bool | |
107 | default y | |
108 | ||
1da177e4 LT |
109 | config GENERIC_CALIBRATE_DELAY |
110 | bool | |
111 | default y | |
112 | ||
06027bdd IM |
113 | config TIME_LOW_RES |
114 | bool | |
115 | depends on SMP | |
116 | default y | |
117 | ||
1da177e4 LT |
118 | # unless you want to implement ACPI on PA-RISC ... ;-) |
119 | config PM | |
120 | bool | |
121 | ||
548f1176 HD |
122 | config STACKTRACE_SUPPORT |
123 | def_bool y | |
124 | ||
5cae841b AV |
125 | config ISA_DMA_API |
126 | bool | |
5cae841b | 127 | |
a08b6b79 Z |
128 | config ARCH_MAY_HAVE_PC_FDC |
129 | bool | |
8b631342 | 130 | depends on BROKEN |
a08b6b79 Z |
131 | default y |
132 | ||
f24ffde4 KS |
133 | config PGTABLE_LEVELS |
134 | int | |
135 | default 3 if 64BIT && PARISC_PAGE_SIZE_4KB | |
136 | default 2 | |
137 | ||
736d2169 HD |
138 | config SYS_SUPPORTS_HUGETLBFS |
139 | def_bool y if PA20 | |
140 | ||
1da177e4 LT |
141 | |
142 | menu "Processor type and features" | |
143 | ||
144 | choice | |
145 | prompt "Processor type" | |
146 | default PA7000 | |
147 | ||
148 | config PA7000 | |
149 | bool "PA7000/PA7100" | |
a7f7f624 | 150 | help |
1da177e4 LT |
151 | This is the processor type of your CPU. This information is |
152 | used for optimizing purposes. In order to compile a kernel | |
153 | that can run on all 32-bit PA CPUs (albeit not optimally fast), | |
154 | you can specify "PA7000" here. | |
155 | ||
156 | Specifying "PA8000" here will allow you to select a 64-bit kernel | |
157 | which is required on some machines. | |
158 | ||
159 | config PA7100LC | |
160 | bool "PA7100LC" | |
161 | help | |
162 | Select this option for the PCX-L processor, as used in the | |
163 | 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, | |
164 | D200, D210, D300, D310 and E-class | |
165 | ||
166 | config PA7200 | |
167 | bool "PA7200" | |
168 | help | |
169 | Select this option for the PCX-T' processor, as used in the | |
170 | C100, C110, J100, J110, J210XC, D250, D260, D350, D360, | |
171 | K100, K200, K210, K220, K400, K410 and K420 | |
172 | ||
173 | config PA7300LC | |
174 | bool "PA7300LC" | |
175 | help | |
176 | Select this option for the PCX-L2 processor, as used in the | |
177 | 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, | |
178 | D220, D230, D320 and D330. | |
179 | ||
180 | config PA8X00 | |
181 | bool "PA8000 and up" | |
182 | help | |
183 | Select this option for PCX-U to PCX-W2 processors. | |
184 | ||
185 | endchoice | |
186 | ||
187 | # Define implied options from the CPU selection here | |
188 | ||
189 | config PA20 | |
190 | def_bool y | |
191 | depends on PA8X00 | |
192 | ||
193 | config PA11 | |
194 | def_bool y | |
195 | depends on PA7000 || PA7100LC || PA7200 || PA7300LC | |
c1f59375 CH |
196 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
197 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE | |
c1f59375 | 198 | select DMA_NONCOHERENT_CACHE_SYNC |
1da177e4 LT |
199 | |
200 | config PREFETCH | |
201 | def_bool y | |
32104b29 | 202 | depends on PA8X00 || PA7200 |
1da177e4 | 203 | |
ec758f98 HD |
204 | config MLONGCALLS |
205 | bool "Enable the -mlong-calls compiler option for big kernels" | |
200036a8 HD |
206 | default y if !MODULES || UBSAN || FTRACE |
207 | default n | |
ec758f98 HD |
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 | ||
1da177e4 LT |
222 | config 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 | ||
2fd83038 HD |
235 | choice |
236 | prompt "Kernel page size" | |
1c5f873d | 237 | default PARISC_PAGE_SIZE_4KB |
2fd83038 HD |
238 | |
239 | config 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 | ||
254 | config PARISC_PAGE_SIZE_16KB | |
daef22cf | 255 | bool "16KB" |
1c971f39 | 256 | depends on PA8X00 && BROKEN |
2fd83038 HD |
257 | |
258 | config PARISC_PAGE_SIZE_64KB | |
daef22cf | 259 | bool "64KB" |
1c971f39 | 260 | depends on PA8X00 && BROKEN |
2fd83038 HD |
261 | |
262 | endchoice | |
263 | ||
af21b01d HD |
264 | config 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 | ||
1da177e4 LT |
276 | config SMP |
277 | bool "Symmetric multi-processing support" | |
a7f7f624 | 278 | help |
1da177e4 | 279 | This enables support for systems with more than one CPU. If you have |
4a474157 RG |
280 | a system with only one CPU, say N. If you have a system with more |
281 | than one CPU, say Y. | |
1da177e4 | 282 | |
4a474157 | 283 | If you say N here, the kernel will run on uni- and multiprocessor |
2a3f53d5 HD |
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. | |
1da177e4 | 286 | |
4f4cfa6c | 287 | See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO |
03502faa | 288 | available at <http://www.tldp.org/docs.html#howto>. |
1da177e4 LT |
289 | |
290 | If you don't know what to do here, say N. | |
200c8804 | 291 | |
bf7b4c1b HD |
292 | config 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 | ||
299 | config 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 | ||
200c8804 HD |
307 | config IRQSTACKS |
308 | bool "Use separate kernel stacks when processing interrupts" | |
416821d3 | 309 | default y |
200c8804 HD |
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. | |
1da177e4 LT |
314 | |
315 | config HOTPLUG_CPU | |
316 | bool | |
317 | default y if SMP | |
1da177e4 | 318 | |
a2ba82cd KM |
319 | config ARCH_SELECT_MEMORY_MODEL |
320 | def_bool y | |
321 | depends on 64BIT | |
322 | ||
dbdf0760 | 323 | config ARCH_SPARSEMEM_ENABLE |
a2ba82cd KM |
324 | def_bool y |
325 | depends on 64BIT | |
326 | ||
327 | config ARCH_FLATMEM_ENABLE | |
328 | def_bool y | |
329 | ||
dbdf0760 | 330 | config ARCH_SPARSEMEM_DEFAULT |
a2ba82cd | 331 | def_bool y |
dbdf0760 | 332 | depends on ARCH_SPARSEMEM_ENABLE |
c80d79d7 | 333 | |
8b631342 | 334 | source "kernel/Kconfig.hz" |
3f22ab27 | 335 | |
1da177e4 LT |
336 | config COMPAT |
337 | def_bool y | |
338 | depends on 64BIT | |
71d577db | 339 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
1da177e4 | 340 | |
bf581e15 HD |
341 | config SYSVIPC_COMPAT |
342 | def_bool y | |
343 | depends on COMPAT && SYSVIPC | |
344 | ||
527973c8 HD |
345 | config AUDIT_ARCH |
346 | def_bool y | |
347 | ||
1da177e4 LT |
348 | config NR_CPUS |
349 | int "Maximum number of CPUs (2-32)" | |
350 | range 2 32 | |
351 | depends on SMP | |
435d34c7 | 352 | default "4" |
1da177e4 | 353 | |
fc697dc0 SS |
354 | config 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 | ||
1191cf49 SS |
367 | config 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 | ||
1da177e4 LT |
377 | endmenu |
378 | ||
379 | ||
380 | source "drivers/parisc/Kconfig" | |
381 | ||
c90f0694 HD |
382 | config SECCOMP |
383 | def_bool y | |
384 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
a7f7f624 | 385 | help |
c90f0694 HD |
386 | This kernel feature is useful for number crunching applications |
387 | that may need to compute untrusted bytecode during their | |
388 | execution. By using pipes or other transports made available to | |
389 | the process as file descriptors supporting the read/write | |
390 | syscalls, it's possible to isolate those applications in | |
391 | their own address space using seccomp. Once seccomp is | |
392 | enabled via prctl(PR_SET_SECCOMP), it cannot be disabled | |
393 | and the task is only allowed to execute a few safe syscalls | |
394 | defined by each seccomp mode. | |
395 | ||
396 | If unsure, say Y. Only embedded should say N here. |