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Linux/arch/parisc/Kconfig

  1 config PARISC
  2         def_bool y
  3         select ARCH_MIGHT_HAVE_PC_PARPORT
  4         select HAVE_IDE
  5         select HAVE_OPROFILE
  6         select HAVE_FUNCTION_TRACER
  7         select HAVE_FUNCTION_GRAPH_TRACER
  8         select HAVE_SYSCALL_TRACEPOINTS
  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 BUILDTIME_EXTABLE_SORT
 15         select HAVE_PERF_EVENTS
 16         select GENERIC_ATOMIC64 if !64BIT
 17         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 18         select BROKEN_RODATA
 19         select GENERIC_IRQ_PROBE
 20         select GENERIC_PCI_IOMAP
 21         select ARCH_HAVE_NMI_SAFE_CMPXCHG
 22         select GENERIC_SMP_IDLE_THREAD
 23         select GENERIC_STRNCPY_FROM_USER
 24         select SYSCTL_ARCH_UNALIGN_ALLOW
 25         select SYSCTL_EXCEPTION_TRACE
 26         select HAVE_MOD_ARCH_SPECIFIC
 27         select VIRT_TO_BUS
 28         select MODULES_USE_ELF_RELA
 29         select CLONE_BACKWARDS
 30         select TTY # Needed for pdc_cons.c
 31         select HAVE_DEBUG_STACKOVERFLOW
 32         select HAVE_ARCH_AUDITSYSCALL
 33         select HAVE_ARCH_HASH
 34         select HAVE_ARCH_SECCOMP_FILTER
 35         select HAVE_ARCH_TRACEHOOK
 36         select HAVE_UNSTABLE_SCHED_CLOCK if (SMP || !64BIT)
 37         select ARCH_NO_COHERENT_DMA_MMAP
 38         select CPU_NO_EFFICIENT_FFS
 39 
 40         help
 41           The PA-RISC microprocessor is designed by Hewlett-Packard and used
 42           in many of their workstations & servers (HP9000 700 and 800 series,
 43           and later HP3000 series).  The PA-RISC Linux project home page is
 44           at <http://www.parisc-linux.org/>.
 45 
 46 config MMU
 47         def_bool y
 48 
 49 config STACK_GROWSUP
 50         def_bool y
 51 
 52 config GENERIC_LOCKBREAK
 53         bool
 54         default y
 55         depends on SMP && PREEMPT
 56 
 57 config RWSEM_GENERIC_SPINLOCK
 58         def_bool y
 59 
 60 config RWSEM_XCHGADD_ALGORITHM
 61         bool
 62 
 63 config ARCH_HAS_ILOG2_U32
 64         bool
 65         default n
 66 
 67 config ARCH_HAS_ILOG2_U64
 68         bool
 69         default n
 70 
 71 config GENERIC_BUG
 72         bool
 73         default y
 74         depends on BUG
 75 
 76 config GENERIC_HWEIGHT
 77         bool
 78         default y
 79 
 80 config GENERIC_CALIBRATE_DELAY
 81         bool
 82         default y
 83 
 84 config TIME_LOW_RES
 85         bool
 86         depends on SMP
 87         default y
 88 
 89 # unless you want to implement ACPI on PA-RISC ... ;-)
 90 config PM
 91         bool
 92 
 93 config STACKTRACE_SUPPORT
 94         def_bool y
 95 
 96 config NEED_DMA_MAP_STATE
 97         def_bool y
 98 
 99 config NEED_SG_DMA_LENGTH
100         def_bool y
101 
102 config ISA_DMA_API
103         bool
104 
105 config ARCH_MAY_HAVE_PC_FDC
106         bool
107         depends on BROKEN
108         default y
109 
110 config PGTABLE_LEVELS
111         int
112         default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
113         default 2
114 
115 config SYS_SUPPORTS_HUGETLBFS
116         def_bool y if PA20
117 
118 source "init/Kconfig"
119 
120 source "kernel/Kconfig.freezer"
121 
122 
123 menu "Processor type and features"
124 
125 choice
126         prompt "Processor type"
127         default PA7000
128 
129 config PA7000
130         bool "PA7000/PA7100"
131         ---help---
132           This is the processor type of your CPU.  This information is
133           used for optimizing purposes.  In order to compile a kernel
134           that can run on all 32-bit PA CPUs (albeit not optimally fast),
135           you can specify "PA7000" here.
136 
137           Specifying "PA8000" here will allow you to select a 64-bit kernel
138           which is required on some machines.
139 
140 config PA7100LC
141         bool "PA7100LC"
142         help
143           Select this option for the PCX-L processor, as used in the
144           712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
145           D200, D210, D300, D310 and E-class
146 
147 config PA7200
148         bool "PA7200"
149         help
150           Select this option for the PCX-T' processor, as used in the
151           C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
152           K100, K200, K210, K220, K400, K410 and K420
153 
154 config PA7300LC
155         bool "PA7300LC"
156         help
157           Select this option for the PCX-L2 processor, as used in the
158           744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
159           D220, D230, D320 and D330.
160 
161 config PA8X00
162         bool "PA8000 and up"
163         help
164           Select this option for PCX-U to PCX-W2 processors.
165 
166 endchoice
167 
168 # Define implied options from the CPU selection here
169 
170 config PA20
171         def_bool y
172         depends on PA8X00
173 
174 config PA11
175         def_bool y
176         depends on PA7000 || PA7100LC || PA7200 || PA7300LC
177 
178 config PREFETCH
179         def_bool y
180         depends on PA8X00 || PA7200
181 
182 config MLONGCALLS
183         bool "Enable the -mlong-calls compiler option for big kernels"
184         def_bool y if (!MODULES)
185         depends on PA8X00
186         help
187           If you configure the kernel to include many drivers built-in instead
188           as modules, the kernel executable may become too big, so that the
189           linker will not be able to resolve some long branches and fails to link
190           your vmlinux kernel. In that case enabling this option will help you
191           to overcome this limit by using the -mlong-calls compiler option.
192 
193           Usually you want to say N here, unless you e.g. want to build
194           a kernel which includes all necessary drivers built-in and which can
195           be used for TFTP booting without the need to have an initrd ramdisk.
196 
197           Enabling this option will probably slow down your kernel.
198 
199 config 64BIT
200         bool "64-bit kernel"
201         depends on PA8X00
202         help
203           Enable this if you want to support 64bit kernel on PA-RISC platform.
204 
205           At the moment, only people willing to use more than 2GB of RAM,
206           or having a 64bit-only capable PA-RISC machine should say Y here.
207 
208           Since there is no 64bit userland on PA-RISC, there is no point to
209           enable this option otherwise. The 64bit kernel is significantly bigger
210           and slower than the 32bit one.
211 
212 choice
213         prompt "Kernel page size"
214         default PARISC_PAGE_SIZE_4KB
215 
216 config PARISC_PAGE_SIZE_4KB
217         bool "4KB"
218         help
219           This lets you select the page size of the kernel.  For best
220           performance, a page size of 16KB is recommended.  For best
221           compatibility with 32bit applications, a page size of 4KB should be
222           selected (the vast majority of 32bit binaries work perfectly fine
223           with a larger page size).
224 
225           4KB                For best 32bit compatibility
226           16KB               For best performance
227           64KB               For best performance, might give more overhead.
228 
229           If you don't know what to do, choose 4KB.
230 
231 config PARISC_PAGE_SIZE_16KB
232         bool "16KB"
233         depends on PA8X00
234 
235 config PARISC_PAGE_SIZE_64KB
236         bool "64KB"
237         depends on PA8X00
238 
239 endchoice
240 
241 config SMP
242         bool "Symmetric multi-processing support"
243         ---help---
244           This enables support for systems with more than one CPU. If you have
245           a system with only one CPU, say N. If you have a system with more
246           than one CPU, say Y.
247 
248           If you say N here, the kernel will run on uni- and multiprocessor
249           machines, but will use only one CPU of a multiprocessor machine. If
250           you say Y here, the kernel will run on many, but not all,
251           uniprocessor machines. On a uniprocessor machine, the kernel
252           will run faster if you say N here.
253 
254           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
255           available at <http://www.tldp.org/docs.html#howto>.
256 
257           If you don't know what to do here, say N.
258 
259 config IRQSTACKS
260         bool "Use separate kernel stacks when processing interrupts"
261         default y
262         help
263           If you say Y here the kernel will use separate kernel stacks
264           for handling hard and soft interrupts.  This can help avoid
265           overflowing the process kernel stacks.
266 
267 config HOTPLUG_CPU
268         bool
269         default y if SMP
270 
271 config ARCH_SELECT_MEMORY_MODEL
272         def_bool y
273         depends on 64BIT
274 
275 config ARCH_DISCONTIGMEM_ENABLE
276         def_bool y
277         depends on 64BIT
278 
279 config ARCH_FLATMEM_ENABLE
280         def_bool y
281 
282 config ARCH_DISCONTIGMEM_DEFAULT
283         def_bool y
284         depends on ARCH_DISCONTIGMEM_ENABLE
285 
286 config NODES_SHIFT
287         int
288         default "3"
289         depends on NEED_MULTIPLE_NODES
290 
291 source "kernel/Kconfig.preempt"
292 source "kernel/Kconfig.hz"
293 source "mm/Kconfig"
294 
295 config COMPAT
296         def_bool y
297         depends on 64BIT
298 
299 config SYSVIPC_COMPAT
300         def_bool y
301         depends on COMPAT && SYSVIPC
302 
303 config AUDIT_ARCH
304         def_bool y
305 
306 config NR_CPUS
307         int "Maximum number of CPUs (2-32)"
308         range 2 32
309         depends on SMP
310         default "32"
311 
312 endmenu
313 
314 
315 source "drivers/parisc/Kconfig"
316 
317 
318 menu "Executable file formats"
319 
320 source "fs/Kconfig.binfmt"
321 
322 endmenu
323 
324 source "net/Kconfig"
325 
326 source "drivers/Kconfig"
327 
328 source "fs/Kconfig"
329 
330 source "arch/parisc/Kconfig.debug"
331 
332 config SECCOMP
333         def_bool y
334         prompt "Enable seccomp to safely compute untrusted bytecode"
335         ---help---
336           This kernel feature is useful for number crunching applications
337           that may need to compute untrusted bytecode during their
338           execution. By using pipes or other transports made available to
339           the process as file descriptors supporting the read/write
340           syscalls, it's possible to isolate those applications in
341           their own address space using seccomp. Once seccomp is
342           enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
343           and the task is only allowed to execute a few safe syscalls
344           defined by each seccomp mode.
345 
346           If unsure, say Y. Only embedded should say N here.
347 
348 source "security/Kconfig"
349 
350 source "crypto/Kconfig"
351 
352 source "lib/Kconfig"

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