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"