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 |
0de79858 | 21 | select BUILDTIME_EXTABLE_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 | |
72e73af1 | 65 | |
1da177e4 LT |
66 | help |
67 | The PA-RISC microprocessor is designed by Hewlett-Packard and used | |
68 | in many of their workstations & servers (HP9000 700 and 800 series, | |
69 | and later HP3000 series). The PA-RISC Linux project home page is | |
70 | at <http://www.parisc-linux.org/>. | |
71 | ||
74ad3d28 BM |
72 | config CPU_BIG_ENDIAN |
73 | def_bool y | |
74 | ||
1da177e4 LT |
75 | config MMU |
76 | def_bool y | |
77 | ||
78 | config STACK_GROWSUP | |
79 | def_bool y | |
80 | ||
95c354fe NP |
81 | config GENERIC_LOCKBREAK |
82 | bool | |
83 | default y | |
84 | depends on SMP && PREEMPT | |
85 | ||
f0d1b0b3 DH |
86 | config ARCH_HAS_ILOG2_U32 |
87 | bool | |
88 | default n | |
89 | ||
90 | config ARCH_HAS_ILOG2_U64 | |
91 | bool | |
92 | default n | |
93 | ||
6891f8a1 HD |
94 | config GENERIC_BUG |
95 | bool | |
96 | default y | |
97 | depends on BUG | |
98 | ||
59e18a2e AM |
99 | config GENERIC_HWEIGHT |
100 | bool | |
101 | default y | |
102 | ||
1da177e4 LT |
103 | config GENERIC_CALIBRATE_DELAY |
104 | bool | |
105 | default y | |
106 | ||
06027bdd IM |
107 | config TIME_LOW_RES |
108 | bool | |
109 | depends on SMP | |
110 | default y | |
111 | ||
1da177e4 LT |
112 | # unless you want to implement ACPI on PA-RISC ... ;-) |
113 | config PM | |
114 | bool | |
115 | ||
548f1176 HD |
116 | config STACKTRACE_SUPPORT |
117 | def_bool y | |
118 | ||
5cae841b AV |
119 | config ISA_DMA_API |
120 | bool | |
5cae841b | 121 | |
a08b6b79 Z |
122 | config ARCH_MAY_HAVE_PC_FDC |
123 | bool | |
8b631342 | 124 | depends on BROKEN |
a08b6b79 Z |
125 | default y |
126 | ||
f24ffde4 KS |
127 | config PGTABLE_LEVELS |
128 | int | |
129 | default 3 if 64BIT && PARISC_PAGE_SIZE_4KB | |
130 | default 2 | |
131 | ||
736d2169 HD |
132 | config SYS_SUPPORTS_HUGETLBFS |
133 | def_bool y if PA20 | |
134 | ||
1da177e4 LT |
135 | |
136 | menu "Processor type and features" | |
137 | ||
138 | choice | |
139 | prompt "Processor type" | |
140 | default PA7000 | |
141 | ||
142 | config PA7000 | |
143 | bool "PA7000/PA7100" | |
144 | ---help--- | |
145 | This is the processor type of your CPU. This information is | |
146 | used for optimizing purposes. In order to compile a kernel | |
147 | that can run on all 32-bit PA CPUs (albeit not optimally fast), | |
148 | you can specify "PA7000" here. | |
149 | ||
150 | Specifying "PA8000" here will allow you to select a 64-bit kernel | |
151 | which is required on some machines. | |
152 | ||
153 | config PA7100LC | |
154 | bool "PA7100LC" | |
155 | help | |
156 | Select this option for the PCX-L processor, as used in the | |
157 | 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, | |
158 | D200, D210, D300, D310 and E-class | |
159 | ||
160 | config PA7200 | |
161 | bool "PA7200" | |
162 | help | |
163 | Select this option for the PCX-T' processor, as used in the | |
164 | C100, C110, J100, J110, J210XC, D250, D260, D350, D360, | |
165 | K100, K200, K210, K220, K400, K410 and K420 | |
166 | ||
167 | config PA7300LC | |
168 | bool "PA7300LC" | |
169 | help | |
170 | Select this option for the PCX-L2 processor, as used in the | |
171 | 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, | |
172 | D220, D230, D320 and D330. | |
173 | ||
174 | config PA8X00 | |
175 | bool "PA8000 and up" | |
176 | help | |
177 | Select this option for PCX-U to PCX-W2 processors. | |
178 | ||
179 | endchoice | |
180 | ||
181 | # Define implied options from the CPU selection here | |
182 | ||
183 | config PA20 | |
184 | def_bool y | |
185 | depends on PA8X00 | |
186 | ||
187 | config PA11 | |
188 | def_bool y | |
189 | depends on PA7000 || PA7100LC || PA7200 || PA7300LC | |
c1f59375 CH |
190 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
191 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE | |
c1f59375 | 192 | select DMA_NONCOHERENT_CACHE_SYNC |
1da177e4 LT |
193 | |
194 | config PREFETCH | |
195 | def_bool y | |
32104b29 | 196 | depends on PA8X00 || PA7200 |
1da177e4 | 197 | |
ec758f98 HD |
198 | config MLONGCALLS |
199 | bool "Enable the -mlong-calls compiler option for big kernels" | |
200036a8 HD |
200 | default y if !MODULES || UBSAN || FTRACE |
201 | default n | |
ec758f98 HD |
202 | depends on PA8X00 |
203 | help | |
204 | If you configure the kernel to include many drivers built-in instead | |
205 | as modules, the kernel executable may become too big, so that the | |
206 | linker will not be able to resolve some long branches and fails to link | |
207 | your vmlinux kernel. In that case enabling this option will help you | |
208 | to overcome this limit by using the -mlong-calls compiler option. | |
209 | ||
210 | Usually you want to say N here, unless you e.g. want to build | |
211 | a kernel which includes all necessary drivers built-in and which can | |
212 | be used for TFTP booting without the need to have an initrd ramdisk. | |
213 | ||
214 | Enabling this option will probably slow down your kernel. | |
215 | ||
1da177e4 LT |
216 | config 64BIT |
217 | bool "64-bit kernel" | |
218 | depends on PA8X00 | |
219 | help | |
220 | Enable this if you want to support 64bit kernel on PA-RISC platform. | |
221 | ||
222 | At the moment, only people willing to use more than 2GB of RAM, | |
223 | or having a 64bit-only capable PA-RISC machine should say Y here. | |
224 | ||
225 | Since there is no 64bit userland on PA-RISC, there is no point to | |
226 | enable this option otherwise. The 64bit kernel is significantly bigger | |
227 | and slower than the 32bit one. | |
228 | ||
2fd83038 HD |
229 | choice |
230 | prompt "Kernel page size" | |
1c5f873d | 231 | default PARISC_PAGE_SIZE_4KB |
2fd83038 HD |
232 | |
233 | config PARISC_PAGE_SIZE_4KB | |
234 | bool "4KB" | |
235 | help | |
236 | This lets you select the page size of the kernel. For best | |
237 | performance, a page size of 16KB is recommended. For best | |
238 | compatibility with 32bit applications, a page size of 4KB should be | |
239 | selected (the vast majority of 32bit binaries work perfectly fine | |
240 | with a larger page size). | |
241 | ||
242 | 4KB For best 32bit compatibility | |
243 | 16KB For best performance | |
244 | 64KB For best performance, might give more overhead. | |
245 | ||
246 | If you don't know what to do, choose 4KB. | |
247 | ||
248 | config PARISC_PAGE_SIZE_16KB | |
daef22cf | 249 | bool "16KB" |
1c971f39 | 250 | depends on PA8X00 && BROKEN |
2fd83038 HD |
251 | |
252 | config PARISC_PAGE_SIZE_64KB | |
daef22cf | 253 | bool "64KB" |
1c971f39 | 254 | depends on PA8X00 && BROKEN |
2fd83038 HD |
255 | |
256 | endchoice | |
257 | ||
af21b01d HD |
258 | config PARISC_SELF_EXTRACT |
259 | bool "Build kernel as self-extracting executable" | |
260 | default y | |
261 | help | |
262 | Say Y if you want to build the parisc kernel as a kind of | |
263 | self-extracting executable. | |
264 | ||
265 | If you say N here, the kernel will be compressed with gzip | |
266 | which can be loaded by the palo bootloader directly too. | |
267 | ||
268 | If you don't know what to do here, say Y. | |
269 | ||
1da177e4 LT |
270 | config SMP |
271 | bool "Symmetric multi-processing support" | |
272 | ---help--- | |
273 | This enables support for systems with more than one CPU. If you have | |
4a474157 RG |
274 | a system with only one CPU, say N. If you have a system with more |
275 | than one CPU, say Y. | |
1da177e4 | 276 | |
4a474157 | 277 | If you say N here, the kernel will run on uni- and multiprocessor |
2a3f53d5 HD |
278 | machines, but will use only one CPU of a multiprocessor machine. |
279 | On a uniprocessor machine, the kernel will run faster if you say N. | |
1da177e4 | 280 | |
4f4cfa6c | 281 | See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO |
03502faa | 282 | available at <http://www.tldp.org/docs.html#howto>. |
1da177e4 LT |
283 | |
284 | If you don't know what to do here, say N. | |
200c8804 | 285 | |
bf7b4c1b HD |
286 | config PARISC_CPU_TOPOLOGY |
287 | bool "Support cpu topology definition" | |
288 | depends on SMP | |
289 | default y | |
290 | help | |
291 | Support PARISC cpu topology definition. | |
292 | ||
293 | config SCHED_MC | |
294 | bool "Multi-core scheduler support" | |
295 | depends on PARISC_CPU_TOPOLOGY && PA8X00 | |
296 | help | |
297 | Multi-core scheduler support improves the CPU scheduler's decision | |
298 | making when dealing with multi-core CPU chips at a cost of slightly | |
299 | increased overhead in some places. If unsure say N here. | |
300 | ||
200c8804 HD |
301 | config IRQSTACKS |
302 | bool "Use separate kernel stacks when processing interrupts" | |
416821d3 | 303 | default y |
200c8804 HD |
304 | help |
305 | If you say Y here the kernel will use separate kernel stacks | |
306 | for handling hard and soft interrupts. This can help avoid | |
307 | overflowing the process kernel stacks. | |
1da177e4 LT |
308 | |
309 | config HOTPLUG_CPU | |
310 | bool | |
311 | default y if SMP | |
1da177e4 | 312 | |
a2ba82cd KM |
313 | config ARCH_SELECT_MEMORY_MODEL |
314 | def_bool y | |
315 | depends on 64BIT | |
316 | ||
dbdf0760 | 317 | config ARCH_SPARSEMEM_ENABLE |
a2ba82cd KM |
318 | def_bool y |
319 | depends on 64BIT | |
320 | ||
321 | config ARCH_FLATMEM_ENABLE | |
322 | def_bool y | |
323 | ||
dbdf0760 | 324 | config ARCH_SPARSEMEM_DEFAULT |
a2ba82cd | 325 | def_bool y |
dbdf0760 | 326 | depends on ARCH_SPARSEMEM_ENABLE |
c80d79d7 | 327 | |
8b631342 | 328 | source "kernel/Kconfig.hz" |
3f22ab27 | 329 | |
1da177e4 LT |
330 | config COMPAT |
331 | def_bool y | |
332 | depends on 64BIT | |
71d577db | 333 | select COMPAT_BINFMT_ELF if BINFMT_ELF |
1da177e4 | 334 | |
bf581e15 HD |
335 | config SYSVIPC_COMPAT |
336 | def_bool y | |
337 | depends on COMPAT && SYSVIPC | |
338 | ||
527973c8 HD |
339 | config AUDIT_ARCH |
340 | def_bool y | |
341 | ||
1da177e4 LT |
342 | config NR_CPUS |
343 | int "Maximum number of CPUs (2-32)" | |
344 | range 2 32 | |
345 | depends on SMP | |
435d34c7 | 346 | default "4" |
1da177e4 | 347 | |
fc697dc0 SS |
348 | config 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 | ||
1191cf49 SS |
361 | config 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 | ||
1da177e4 LT |
371 | endmenu |
372 | ||
373 | ||
374 | source "drivers/parisc/Kconfig" | |
375 | ||
c90f0694 HD |
376 | config SECCOMP |
377 | def_bool y | |
378 | prompt "Enable seccomp to safely compute untrusted bytecode" | |
379 | ---help--- | |
380 | This kernel feature is useful for number crunching applications | |
381 | that may need to compute untrusted bytecode during their | |
382 | execution. By using pipes or other transports made available to | |
383 | the process as file descriptors supporting the read/write | |
384 | syscalls, it's possible to isolate those applications in | |
385 | their own address space using seccomp. Once seccomp is | |
386 | enabled via prctl(PR_SET_SECCOMP), it cannot be disabled | |
387 | and the task is only allowed to execute a few safe syscalls | |
388 | defined by each seccomp mode. | |
389 | ||
390 | If unsure, say Y. Only embedded should say N here. |