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