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