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