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