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 ARCH_HAS_UBSAN_SANITIZE_ALL
  13         select ARCH_WANTS_UBSAN_NO_NULL
  14         select ARCH_SUPPORTS_MEMORY_FAILURE
  15         select RTC_CLASS
  16         select RTC_DRV_GENERIC
  17         select INIT_ALL_POSSIBLE
  18         select HAVE_MEMBLOCK
  19         select NO_BOOTMEM
  20         select BUG
  21         select BUILDTIME_EXTABLE_SORT
  22         select HAVE_PERF_EVENTS
  23         select HAVE_KERNEL_BZIP2
  24         select HAVE_KERNEL_GZIP
  25         select HAVE_KERNEL_LZ4
  26         select HAVE_KERNEL_LZMA
  27         select HAVE_KERNEL_LZO
  28         select HAVE_KERNEL_XZ
  29         select GENERIC_ATOMIC64 if !64BIT
  30         select GENERIC_IRQ_PROBE
  31         select GENERIC_PCI_IOMAP
  32         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  33         select GENERIC_SMP_IDLE_THREAD
  34         select GENERIC_STRNCPY_FROM_USER
  35         select SYSCTL_ARCH_UNALIGN_ALLOW
  36         select SYSCTL_EXCEPTION_TRACE
  37         select HAVE_MOD_ARCH_SPECIFIC
  38         select VIRT_TO_BUS
  39         select MODULES_USE_ELF_RELA
  40         select CLONE_BACKWARDS
  41         select TTY # Needed for pdc_cons.c
  42         select HAVE_DEBUG_STACKOVERFLOW
  43         select HAVE_ARCH_AUDITSYSCALL
  44         select HAVE_ARCH_HASH
  45         select HAVE_ARCH_SECCOMP_FILTER
  46         select HAVE_ARCH_TRACEHOOK
  47         select GENERIC_SCHED_CLOCK
  48         select HAVE_UNSTABLE_SCHED_CLOCK if SMP
  49         select GENERIC_CLOCKEVENTS
  50         select ARCH_NO_COHERENT_DMA_MMAP
  51         select CPU_NO_EFFICIENT_FFS
  52
  53         help
  54           The PA-RISC microprocessor is designed by Hewlett-Packard and used
  55           in many of their workstations & servers (HP9000 700 and 800 series,
  56           and later HP3000 series).  The PA-RISC Linux project home page is
  57           at <http://www.parisc-linux.org/>.
  58
  59 config CPU_BIG_ENDIAN
  60         def_bool y
  61
  62 config CPU_BIG_ENDIAN
  63         def_bool y
  64
  65 config MMU
  66         def_bool y
  67
  68 config STACK_GROWSUP
  69         def_bool y
  70
  71 config GENERIC_LOCKBREAK
  72         bool
  73         default y
  74         depends on SMP && PREEMPT
  75
  76 config RWSEM_GENERIC_SPINLOCK
  77         def_bool y
  78
  79 config RWSEM_XCHGADD_ALGORITHM
  80         bool
  81
  82 config ARCH_HAS_ILOG2_U32
  83         bool
  84         default n
  85
  86 config ARCH_HAS_ILOG2_U64
  87         bool
  88         default n
  89
  90 config GENERIC_BUG
  91         bool
  92         default y
  93         depends on BUG
  94
  95 config GENERIC_HWEIGHT
  96         bool
  97         default y
  98
  99 config GENERIC_CALIBRATE_DELAY
 100         bool
 101         default y
 102
 103 config TIME_LOW_RES
 104         bool
 105         depends on SMP
 106         default y
 107
 108 # unless you want to implement ACPI on PA-RISC ... ;-)
 109 config PM
 110         bool
 111
 112 config STACKTRACE_SUPPORT
 113         def_bool y
 114
 115 config NEED_DMA_MAP_STATE
 116         def_bool y
 117
 118 config NEED_SG_DMA_LENGTH
 119         def_bool y
 120
 121 config ISA_DMA_API
 122         bool
 123
 124 config ARCH_MAY_HAVE_PC_FDC
 125         bool
 126         depends on BROKEN
 127         default y
 128
 129 config PGTABLE_LEVELS
 130         int
 131         default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
 132         default 2
 133
 134 config SYS_SUPPORTS_HUGETLBFS
 135         def_bool y if PA20
 136
 137 source "init/Kconfig"
 138
 139 source "kernel/Kconfig.freezer"
 140
 141
 142 menu "Processor type and features"
 143
 144 choice
 145         prompt "Processor type"
 146         default PA7000
 147
 148 config PA7000
 149         bool "PA7000/PA7100"
 150         ---help---
 151           This is the processor type of your CPU.  This information is
 152           used for optimizing purposes.  In order to compile a kernel
 153           that can run on all 32-bit PA CPUs (albeit not optimally fast),
 154           you can specify "PA7000" here.
 155
 156           Specifying "PA8000" here will allow you to select a 64-bit kernel
 157           which is required on some machines.
 158
 159 config PA7100LC
 160         bool "PA7100LC"
 161         help
 162           Select this option for the PCX-L processor, as used in the
 163           712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
 164           D200, D210, D300, D310 and E-class
 165
 166 config PA7200
 167         bool "PA7200"
 168         help
 169           Select this option for the PCX-T' processor, as used in the
 170           C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
 171           K100, K200, K210, K220, K400, K410 and K420
 172
 173 config PA7300LC
 174         bool "PA7300LC"
 175         help
 176           Select this option for the PCX-L2 processor, as used in the
 177           744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
 178           D220, D230, D320 and D330.
 179
 180 config PA8X00
 181         bool "PA8000 and up"
 182         help
 183           Select this option for PCX-U to PCX-W2 processors.
 184
 185 endchoice
 186
 187 # Define implied options from the CPU selection here
 188
 189 config PA20
 190         def_bool y
 191         depends on PA8X00
 192
 193 config PA11
 194         def_bool y
 195         depends on PA7000 || PA7100LC || PA7200 || PA7300LC
 196
 197 config PREFETCH
 198         def_bool y
 199         depends on PA8X00 || PA7200
 200
 201 config MLONGCALLS
 202         bool "Enable the -mlong-calls compiler option for big kernels"
 203         def_bool y if (!MODULES)
 204         depends on PA8X00
 205         help
 206           If you configure the kernel to include many drivers built-in instead
 207           as modules, the kernel executable may become too big, so that the
 208           linker will not be able to resolve some long branches and fails to link
 209           your vmlinux kernel. In that case enabling this option will help you
 210           to overcome this limit by using the -mlong-calls compiler option.
 211
 212           Usually you want to say N here, unless you e.g. want to build
 213           a kernel which includes all necessary drivers built-in and which can
 214           be used for TFTP booting without the need to have an initrd ramdisk.
 215
 216           Enabling this option will probably slow down your kernel.
 217
 218 config 64BIT
 219         bool "64-bit kernel"
 220         depends on PA8X00
 221         help
 222           Enable this if you want to support 64bit kernel on PA-RISC platform.
 223
 224           At the moment, only people willing to use more than 2GB of RAM,
 225           or having a 64bit-only capable PA-RISC machine should say Y here.
 226
 227           Since there is no 64bit userland on PA-RISC, there is no point to
 228           enable this option otherwise. The 64bit kernel is significantly bigger
 229           and slower than the 32bit one.
 230
 231 choice
 232         prompt "Kernel page size"
 233         default PARISC_PAGE_SIZE_4KB
 234
 235 config PARISC_PAGE_SIZE_4KB
 236         bool "4KB"
 237         help
 238           This lets you select the page size of the kernel.  For best
 239           performance, a page size of 16KB is recommended.  For best
 240           compatibility with 32bit applications, a page size of 4KB should be
 241           selected (the vast majority of 32bit binaries work perfectly fine
 242           with a larger page size).
 243
 244           4KB                For best 32bit compatibility
 245           16KB               For best performance
 246           64KB               For best performance, might give more overhead.
 247
 248           If you don't know what to do, choose 4KB.
 249
 250 config PARISC_PAGE_SIZE_16KB
 251         bool "16KB"
 252         depends on PA8X00
 253
 254 config PARISC_PAGE_SIZE_64KB
 255         bool "64KB"
 256         depends on PA8X00
 257
 258 endchoice
 259
 260 config PARISC_SELF_EXTRACT
 261         bool "Build kernel as self-extracting executable"
 262         default y
 263         help
 264           Say Y if you want to build the parisc kernel as a kind of
 265           self-extracting executable.
 266
 267           If you say N here, the kernel will be compressed with gzip
 268           which can be loaded by the palo bootloader directly too.
 269
 270           If you don't know what to do here, say Y.
 271
 272 config SMP
 273         bool "Symmetric multi-processing support"
 274         ---help---
 275           This enables support for systems with more than one CPU. If you have
 276           a system with only one CPU, say N. If you have a system with more
 277           than one CPU, say Y.
 278
 279           If you say N here, the kernel will run on uni- and multiprocessor
 280           machines, but will use only one CPU of a multiprocessor machine. If
 281           you say Y here, the kernel will run on many, but not all,
 282           uniprocessor machines. On a uniprocessor machine, the kernel
 283           will run faster if you say N here.
 284
 285           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 286           available at <http://www.tldp.org/docs.html#howto>.
 287
 288           If you don't know what to do here, say N.
 289
 290 config IRQSTACKS
 291         bool "Use separate kernel stacks when processing interrupts"
 292         default y
 293         help
 294           If you say Y here the kernel will use separate kernel stacks
 295           for handling hard and soft interrupts.  This can help avoid
 296           overflowing the process kernel stacks.
 297
 298 config HOTPLUG_CPU
 299         bool
 300         default y if SMP
 301
 302 config ARCH_SELECT_MEMORY_MODEL
 303         def_bool y
 304         depends on 64BIT
 305
 306 config ARCH_DISCONTIGMEM_ENABLE
 307         def_bool y
 308         depends on 64BIT
 309
 310 config ARCH_FLATMEM_ENABLE
 311         def_bool y
 312
 313 config ARCH_DISCONTIGMEM_DEFAULT
 314         def_bool y
 315         depends on ARCH_DISCONTIGMEM_ENABLE
 316
 317 config NODES_SHIFT
 318         int
 319         default "3"
 320         depends on NEED_MULTIPLE_NODES
 321
 322 source "kernel/Kconfig.preempt"
 323 source "kernel/Kconfig.hz"
 324 source "mm/Kconfig"
 325
 326 config COMPAT
 327         def_bool y
 328         depends on 64BIT
 329
 330 config SYSVIPC_COMPAT
 331         def_bool y
 332         depends on COMPAT && SYSVIPC
 333
 334 config AUDIT_ARCH
 335         def_bool y
 336
 337 config NR_CPUS
 338         int "Maximum number of CPUs (2-32)"
 339         range 2 32
 340         depends on SMP
 341         default "32"
 342
 343 endmenu
 344
 345
 346 source "drivers/parisc/Kconfig"
 347
 348
 349 menu "Executable file formats"
 350
 351 source "fs/Kconfig.binfmt"
 352
 353 endmenu
 354
 355 source "net/Kconfig"
 356
 357 source "drivers/Kconfig"
 358
 359 source "fs/Kconfig"
 360
 361 source "arch/parisc/Kconfig.debug"
 362
 363 config SECCOMP
 364         def_bool y
 365         prompt "Enable seccomp to safely compute untrusted bytecode"
 366         ---help---
 367           This kernel feature is useful for number crunching applications
 368           that may need to compute untrusted bytecode during their
 369           execution. By using pipes or other transports made available to
 370           the process as file descriptors supporting the read/write
 371           syscalls, it's possible to isolate those applications in
 372           their own address space using seccomp. Once seccomp is
 373           enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
 374           and the task is only allowed to execute a few safe syscalls
 375           defined by each seccomp mode.
 376
 377           If unsure, say Y. Only embedded should say N here.
 378
 379 source "security/Kconfig"
 380
 381 source "crypto/Kconfig"
 382
 383 source "lib/Kconfig"