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