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

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