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