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 HAVE_SYSCALL_TRACEPOINTS
  10         select ARCH_WANT_FRAME_POINTERS
  11         select RTC_CLASS
  12         select RTC_DRV_GENERIC
  13         select INIT_ALL_POSSIBLE
  14         select BUG
  15         select BUILDTIME_EXTABLE_SORT
  16         select HAVE_PERF_EVENTS
  17         select GENERIC_ATOMIC64 if !64BIT
  18         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  19         select BROKEN_RODATA
  20         select GENERIC_IRQ_PROBE
  21         select GENERIC_PCI_IOMAP
  22         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  23         select GENERIC_SMP_IDLE_THREAD
  24         select GENERIC_STRNCPY_FROM_USER
  25         select SYSCTL_ARCH_UNALIGN_ALLOW
  26         select SYSCTL_EXCEPTION_TRACE
  27         select HAVE_MOD_ARCH_SPECIFIC
  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_SECCOMP_FILTER
  35         select HAVE_ARCH_TRACEHOOK
  36         select HAVE_UNSTABLE_SCHED_CLOCK if (SMP || !64BIT)
  37         select ARCH_NO_COHERENT_DMA_MMAP
  38         select CPU_NO_EFFICIENT_FFS
  39
  40         help
  41           The PA-RISC microprocessor is designed by Hewlett-Packard and used
  42           in many of their workstations & servers (HP9000 700 and 800 series,
  43           and later HP3000 series).  The PA-RISC Linux project home page is
  44           at <http://www.parisc-linux.org/>.
  45
  46 config MMU
  47         def_bool y
  48
  49 config STACK_GROWSUP
  50         def_bool y
  51
  52 config GENERIC_LOCKBREAK
  53         bool
  54         default y
  55         depends on SMP && PREEMPT
  56
  57 config RWSEM_GENERIC_SPINLOCK
  58         def_bool y
  59
  60 config RWSEM_XCHGADD_ALGORITHM
  61         bool
  62
  63 config ARCH_HAS_ILOG2_U32
  64         bool
  65         default n
  66
  67 config ARCH_HAS_ILOG2_U64
  68         bool
  69         default n
  70
  71 config GENERIC_BUG
  72         bool
  73         default y
  74         depends on BUG
  75
  76 config GENERIC_HWEIGHT
  77         bool
  78         default y
  79
  80 config GENERIC_CALIBRATE_DELAY
  81         bool
  82         default y
  83
  84 config TIME_LOW_RES
  85         bool
  86         depends on SMP
  87         default y
  88
  89 # unless you want to implement ACPI on PA-RISC ... ;-)
  90 config PM
  91         bool
  92
  93 config STACKTRACE_SUPPORT
  94         def_bool y
  95
  96 config NEED_DMA_MAP_STATE
  97         def_bool y
  98
  99 config NEED_SG_DMA_LENGTH
 100         def_bool y
 101
 102 config ISA_DMA_API
 103         bool
 104
 105 config ARCH_MAY_HAVE_PC_FDC
 106         bool
 107         depends on BROKEN
 108         default y
 109
 110 config PGTABLE_LEVELS
 111         int
 112         default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
 113         default 2
 114
 115 config SYS_SUPPORTS_HUGETLBFS
 116         def_bool y if PA20
 117
 118 source "init/Kconfig"
 119
 120 source "kernel/Kconfig.freezer"
 121
 122
 123 menu "Processor type and features"
 124
 125 choice
 126         prompt "Processor type"
 127         default PA7000
 128
 129 config PA7000
 130         bool "PA7000/PA7100"
 131         ---help---
 132           This is the processor type of your CPU.  This information is
 133           used for optimizing purposes.  In order to compile a kernel
 134           that can run on all 32-bit PA CPUs (albeit not optimally fast),
 135           you can specify "PA7000" here.
 136
 137           Specifying "PA8000" here will allow you to select a 64-bit kernel
 138           which is required on some machines.
 139
 140 config PA7100LC
 141         bool "PA7100LC"
 142         help
 143           Select this option for the PCX-L processor, as used in the
 144           712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
 145           D200, D210, D300, D310 and E-class
 146
 147 config PA7200
 148         bool "PA7200"
 149         help
 150           Select this option for the PCX-T' processor, as used in the
 151           C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
 152           K100, K200, K210, K220, K400, K410 and K420
 153
 154 config PA7300LC
 155         bool "PA7300LC"
 156         help
 157           Select this option for the PCX-L2 processor, as used in the
 158           744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
 159           D220, D230, D320 and D330.
 160
 161 config PA8X00
 162         bool "PA8000 and up"
 163         help
 164           Select this option for PCX-U to PCX-W2 processors.
 165
 166 endchoice
 167
 168 # Define implied options from the CPU selection here
 169
 170 config PA20
 171         def_bool y
 172         depends on PA8X00
 173
 174 config PA11
 175         def_bool y
 176         depends on PA7000 || PA7100LC || PA7200 || PA7300LC
 177
 178 config PREFETCH
 179         def_bool y
 180         depends on PA8X00 || PA7200
 181
 182 config MLONGCALLS
 183         bool "Enable the -mlong-calls compiler option for big kernels"
 184         def_bool y if (!MODULES)
 185         depends on PA8X00
 186         help
 187           If you configure the kernel to include many drivers built-in instead
 188           as modules, the kernel executable may become too big, so that the
 189           linker will not be able to resolve some long branches and fails to link
 190           your vmlinux kernel. In that case enabling this option will help you
 191           to overcome this limit by using the -mlong-calls compiler option.
 192
 193           Usually you want to say N here, unless you e.g. want to build
 194           a kernel which includes all necessary drivers built-in and which can
 195           be used for TFTP booting without the need to have an initrd ramdisk.
 196
 197           Enabling this option will probably slow down your kernel.
 198
 199 config 64BIT
 200         bool "64-bit kernel"
 201         depends on PA8X00
 202         help
 203           Enable this if you want to support 64bit kernel on PA-RISC platform.
 204
 205           At the moment, only people willing to use more than 2GB of RAM,
 206           or having a 64bit-only capable PA-RISC machine should say Y here.
 207
 208           Since there is no 64bit userland on PA-RISC, there is no point to
 209           enable this option otherwise. The 64bit kernel is significantly bigger
 210           and slower than the 32bit one.
 211
 212 choice
 213         prompt "Kernel page size"
 214         default PARISC_PAGE_SIZE_4KB
 215
 216 config PARISC_PAGE_SIZE_4KB
 217         bool "4KB"
 218         help
 219           This lets you select the page size of the kernel.  For best
 220           performance, a page size of 16KB is recommended.  For best
 221           compatibility with 32bit applications, a page size of 4KB should be
 222           selected (the vast majority of 32bit binaries work perfectly fine
 223           with a larger page size).
 224
 225           4KB                For best 32bit compatibility
 226           16KB               For best performance
 227           64KB               For best performance, might give more overhead.
 228
 229           If you don't know what to do, choose 4KB.
 230
 231 config PARISC_PAGE_SIZE_16KB
 232         bool "16KB"
 233         depends on PA8X00
 234
 235 config PARISC_PAGE_SIZE_64KB
 236         bool "64KB"
 237         depends on PA8X00
 238
 239 endchoice
 240
 241 config SMP
 242         bool "Symmetric multi-processing support"
 243         ---help---
 244           This enables support for systems with more than one CPU. If you have
 245           a system with only one CPU, say N. If you have a system with more
 246           than one CPU, say Y.
 247
 248           If you say N here, the kernel will run on uni- and multiprocessor
 249           machines, but will use only one CPU of a multiprocessor machine. If
 250           you say Y here, the kernel will run on many, but not all,
 251           uniprocessor machines. On a uniprocessor machine, the kernel
 252           will run faster if you say N here.
 253
 254           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 255           available at <http://www.tldp.org/docs.html#howto>.
 256
 257           If you don't know what to do here, say N.
 258
 259 config IRQSTACKS
 260         bool "Use separate kernel stacks when processing interrupts"
 261         default y
 262         help
 263           If you say Y here the kernel will use separate kernel stacks
 264           for handling hard and soft interrupts.  This can help avoid
 265           overflowing the process kernel stacks.
 266
 267 config HOTPLUG_CPU
 268         bool
 269         default y if SMP
 270
 271 config ARCH_SELECT_MEMORY_MODEL
 272         def_bool y
 273         depends on 64BIT
 274
 275 config ARCH_DISCONTIGMEM_ENABLE
 276         def_bool y
 277         depends on 64BIT
 278
 279 config ARCH_FLATMEM_ENABLE
 280         def_bool y
 281
 282 config ARCH_DISCONTIGMEM_DEFAULT
 283         def_bool y
 284         depends on ARCH_DISCONTIGMEM_ENABLE
 285
 286 config NODES_SHIFT
 287         int
 288         default "3"
 289         depends on NEED_MULTIPLE_NODES
 290
 291 source "kernel/Kconfig.preempt"
 292 source "kernel/Kconfig.hz"
 293 source "mm/Kconfig"
 294
 295 config COMPAT
 296         def_bool y
 297         depends on 64BIT
 298
 299 config SYSVIPC_COMPAT
 300         def_bool y
 301         depends on COMPAT && SYSVIPC
 302
 303 config AUDIT_ARCH
 304         def_bool y
 305
 306 config NR_CPUS
 307         int "Maximum number of CPUs (2-32)"
 308         range 2 32
 309         depends on SMP
 310         default "32"
 311
 312 endmenu
 313
 314
 315 source "drivers/parisc/Kconfig"
 316
 317
 318 menu "Executable file formats"
 319
 320 source "fs/Kconfig.binfmt"
 321
 322 endmenu
 323
 324 source "net/Kconfig"
 325
 326 source "drivers/Kconfig"
 327
 328 source "fs/Kconfig"
 329
 330 source "arch/parisc/Kconfig.debug"
 331
 332 config SECCOMP
 333         def_bool y
 334         prompt "Enable seccomp to safely compute untrusted bytecode"
 335         ---help---
 336           This kernel feature is useful for number crunching applications
 337           that may need to compute untrusted bytecode during their
 338           execution. By using pipes or other transports made available to
 339           the process as file descriptors supporting the read/write
 340           syscalls, it's possible to isolate those applications in
 341           their own address space using seccomp. Once seccomp is
 342           enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
 343           and the task is only allowed to execute a few safe syscalls
 344           defined by each seccomp mode.
 345
 346           If unsure, say Y. Only embedded should say N here.
 347
 348 source "security/Kconfig"
 349
 350 source "crypto/Kconfig"
 351
 352 source "lib/Kconfig"