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Linux/arch/parisc/Kconfig

  1 config PARISC
  2         def_bool y
  3         select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
  4         select ARCH_MIGHT_HAVE_PC_PARPORT
  5         select HAVE_IDE
  6         select HAVE_OPROFILE
  7         select HAVE_FUNCTION_TRACER if 64BIT
  8         select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
  9         select ARCH_WANT_FRAME_POINTERS
 10         select RTC_CLASS
 11         select RTC_DRV_GENERIC
 12         select INIT_ALL_POSSIBLE
 13         select BUG
 14         select HAVE_PERF_EVENTS
 15         select GENERIC_ATOMIC64 if !64BIT
 16         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 17         select BROKEN_RODATA
 18         select GENERIC_IRQ_PROBE
 19         select GENERIC_PCI_IOMAP
 20         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 21         select GENERIC_SMP_IDLE_THREAD
 22         select GENERIC_STRNCPY_FROM_USER
 23         select SYSCTL_ARCH_UNALIGN_ALLOW
 24         select SYSCTL_EXCEPTION_TRACE
 25         select HAVE_MOD_ARCH_SPECIFIC
 26         select VIRT_TO_BUS
 27         select MODULES_USE_ELF_RELA
 28         select CLONE_BACKWARDS
 29         select TTY # Needed for pdc_cons.c
 30         select HAVE_DEBUG_STACKOVERFLOW
 31         select HAVE_ARCH_AUDITSYSCALL
 32         select ARCH_NO_COHERENT_DMA_MMAP
 33 
 34         help
 35           The PA-RISC microprocessor is designed by Hewlett-Packard and used
 36           in many of their workstations & servers (HP9000 700 and 800 series,
 37           and later HP3000 series).  The PA-RISC Linux project home page is
 38           at <http://www.parisc-linux.org/>.
 39 
 40 config MMU
 41         def_bool y
 42 
 43 config STACK_GROWSUP
 44         def_bool y
 45 
 46 config GENERIC_LOCKBREAK
 47         bool
 48         default y
 49         depends on SMP && PREEMPT
 50 
 51 config RWSEM_GENERIC_SPINLOCK
 52         def_bool y
 53 
 54 config RWSEM_XCHGADD_ALGORITHM
 55         bool
 56 
 57 config ARCH_HAS_ILOG2_U32
 58         bool
 59         default n
 60 
 61 config ARCH_HAS_ILOG2_U64
 62         bool
 63         default n
 64 
 65 config GENERIC_BUG
 66         bool
 67         default y
 68         depends on BUG
 69 
 70 config GENERIC_HWEIGHT
 71         bool
 72         default y
 73 
 74 config GENERIC_CALIBRATE_DELAY
 75         bool
 76         default y
 77 
 78 config TIME_LOW_RES
 79         bool
 80         depends on SMP
 81         default y
 82 
 83 # unless you want to implement ACPI on PA-RISC ... ;-)
 84 config PM
 85         bool
 86 
 87 config STACKTRACE_SUPPORT
 88         def_bool y
 89 
 90 config NEED_DMA_MAP_STATE
 91         def_bool y
 92 
 93 config NEED_SG_DMA_LENGTH
 94         def_bool y
 95 
 96 config ISA_DMA_API
 97         bool
 98 
 99 config ARCH_MAY_HAVE_PC_FDC
100         bool
101         depends on BROKEN
102         default y
103 
104 config PGTABLE_LEVELS
105         int
106         default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
107         default 2
108 
109 config SYS_SUPPORTS_HUGETLBFS
110         def_bool y if PA20
111 
112 source "init/Kconfig"
113 
114 source "kernel/Kconfig.freezer"
115 
116 
117 menu "Processor type and features"
118 
119 choice
120         prompt "Processor type"
121         default PA7000
122 
123 config PA7000
124         bool "PA7000/PA7100"
125         ---help---
126           This is the processor type of your CPU.  This information is
127           used for optimizing purposes.  In order to compile a kernel
128           that can run on all 32-bit PA CPUs (albeit not optimally fast),
129           you can specify "PA7000" here.
130 
131           Specifying "PA8000" here will allow you to select a 64-bit kernel
132           which is required on some machines.
133 
134 config PA7100LC
135         bool "PA7100LC"
136         help
137           Select this option for the PCX-L processor, as used in the
138           712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
139           D200, D210, D300, D310 and E-class
140 
141 config PA7200
142         bool "PA7200"
143         help
144           Select this option for the PCX-T' processor, as used in the
145           C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
146           K100, K200, K210, K220, K400, K410 and K420
147 
148 config PA7300LC
149         bool "PA7300LC"
150         help
151           Select this option for the PCX-L2 processor, as used in the
152           744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
153           D220, D230, D320 and D330.
154 
155 config PA8X00
156         bool "PA8000 and up"
157         help
158           Select this option for PCX-U to PCX-W2 processors.
159 
160 endchoice
161 
162 # Define implied options from the CPU selection here
163 
164 config PA20
165         def_bool y
166         depends on PA8X00
167 
168 config PA11
169         def_bool y
170         depends on PA7000 || PA7100LC || PA7200 || PA7300LC
171 
172 config PREFETCH
173         def_bool y
174         depends on PA8X00 || PA7200
175 
176 config MLONGCALLS
177         bool "Enable the -mlong-calls compiler option for big kernels"
178         def_bool y if (!MODULES)
179         depends on PA8X00
180         help
181           If you configure the kernel to include many drivers built-in instead
182           as modules, the kernel executable may become too big, so that the
183           linker will not be able to resolve some long branches and fails to link
184           your vmlinux kernel. In that case enabling this option will help you
185           to overcome this limit by using the -mlong-calls compiler option.
186 
187           Usually you want to say N here, unless you e.g. want to build
188           a kernel which includes all necessary drivers built-in and which can
189           be used for TFTP booting without the need to have an initrd ramdisk.
190 
191           Enabling this option will probably slow down your kernel.
192 
193 config 64BIT
194         bool "64-bit kernel"
195         depends on PA8X00
196         help
197           Enable this if you want to support 64bit kernel on PA-RISC platform.
198 
199           At the moment, only people willing to use more than 2GB of RAM,
200           or having a 64bit-only capable PA-RISC machine should say Y here.
201 
202           Since there is no 64bit userland on PA-RISC, there is no point to
203           enable this option otherwise. The 64bit kernel is significantly bigger
204           and slower than the 32bit one.
205 
206 choice
207         prompt "Kernel page size"
208         default PARISC_PAGE_SIZE_4KB
209 
210 config PARISC_PAGE_SIZE_4KB
211         bool "4KB"
212         help
213           This lets you select the page size of the kernel.  For best
214           performance, a page size of 16KB is recommended.  For best
215           compatibility with 32bit applications, a page size of 4KB should be
216           selected (the vast majority of 32bit binaries work perfectly fine
217           with a larger page size).
218 
219           4KB                For best 32bit compatibility
220           16KB               For best performance
221           64KB               For best performance, might give more overhead.
222 
223           If you don't know what to do, choose 4KB.
224 
225 config PARISC_PAGE_SIZE_16KB
226         bool "16KB"
227         depends on PA8X00
228 
229 config PARISC_PAGE_SIZE_64KB
230         bool "64KB"
231         depends on PA8X00
232 
233 endchoice
234 
235 config SMP
236         bool "Symmetric multi-processing support"
237         ---help---
238           This enables support for systems with more than one CPU. If you have
239           a system with only one CPU, say N. If you have a system with more
240           than one CPU, say Y.
241 
242           If you say N here, the kernel will run on uni- and multiprocessor
243           machines, but will use only one CPU of a multiprocessor machine. If
244           you say Y here, the kernel will run on many, but not all,
245           uniprocessor machines. On a uniprocessor machine, the kernel
246           will run faster if you say N here.
247 
248           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
249           available at <http://www.tldp.org/docs.html#howto>.
250 
251           If you don't know what to do here, say N.
252 
253 config IRQSTACKS
254         bool "Use separate kernel stacks when processing interrupts"
255         default y
256         help
257           If you say Y here the kernel will use separate kernel stacks
258           for handling hard and soft interrupts.  This can help avoid
259           overflowing the process kernel stacks.
260 
261 config HOTPLUG_CPU
262         bool
263         default y if SMP
264 
265 config ARCH_SELECT_MEMORY_MODEL
266         def_bool y
267         depends on 64BIT
268 
269 config ARCH_DISCONTIGMEM_ENABLE
270         def_bool y
271         depends on 64BIT
272 
273 config ARCH_FLATMEM_ENABLE
274         def_bool y
275 
276 config ARCH_DISCONTIGMEM_DEFAULT
277         def_bool y
278         depends on ARCH_DISCONTIGMEM_ENABLE
279 
280 config NODES_SHIFT
281         int
282         default "3"
283         depends on NEED_MULTIPLE_NODES
284 
285 source "kernel/Kconfig.preempt"
286 source "kernel/Kconfig.hz"
287 source "mm/Kconfig"
288 
289 config COMPAT
290         def_bool y
291         depends on 64BIT
292 
293 config SYSVIPC_COMPAT
294         def_bool y
295         depends on COMPAT && SYSVIPC
296 
297 config AUDIT_ARCH
298         def_bool y
299 
300 config NR_CPUS
301         int "Maximum number of CPUs (2-32)"
302         range 2 32
303         depends on SMP
304         default "32"
305 
306 endmenu
307 
308 
309 source "drivers/parisc/Kconfig"
310 
311 
312 menu "Executable file formats"
313 
314 source "fs/Kconfig.binfmt"
315 
316 endmenu
317 
318 source "net/Kconfig"
319 
320 source "drivers/Kconfig"
321 
322 source "fs/Kconfig"
323 
324 source "arch/parisc/Kconfig.debug"
325 
326 config SECCOMP
327         def_bool y
328         prompt "Enable seccomp to safely compute untrusted bytecode"
329         ---help---
330           This kernel feature is useful for number crunching applications
331           that may need to compute untrusted bytecode during their
332           execution. By using pipes or other transports made available to
333           the process as file descriptors supporting the read/write
334           syscalls, it's possible to isolate those applications in
335           their own address space using seccomp. Once seccomp is
336           enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
337           and the task is only allowed to execute a few safe syscalls
338           defined by each seccomp mode.
339 
340           If unsure, say Y. Only embedded should say N here.
341 
342 source "security/Kconfig"
343 
344 source "crypto/Kconfig"
345 
346 source "lib/Kconfig"

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