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