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