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