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