arch/sparc64/Kconfig

   1 # sparc64 configuration
   2 mainmenu "Linux Kernel Configuration for 64-bit SPARC"
   3
   4 config SPARC
   5         bool
   6         default y
   7         select HAVE_OPROFILE
   8         select HAVE_KPROBES
   9         select HAVE_KRETPROBES
  10
  11 config SPARC64
  12         bool
  13         default y
  14         select HAVE_IDE
  15         select HAVE_LMB
  16         select HAVE_ARCH_KGDB
  17
  18 config GENERIC_TIME
  19         bool
  20         default y
  21
  22 config GENERIC_CMOS_UPDATE
  23         bool
  24         default y
  25
  26 config GENERIC_CLOCKEVENTS
  27         bool
  28         default y
  29
  30 config 64BIT
  31         def_bool y
  32
  33 config MMU
  34         bool
  35         default y
  36
  37 config IOMMU_HELPER
  38         bool
  39         default y
  40
  41 config QUICKLIST
  42         bool
  43         default y
  44
  45 config STACKTRACE_SUPPORT
  46         bool
  47         default y
  48
  49 config LOCKDEP_SUPPORT
  50         bool
  51         default y
  52
  53 config ARCH_MAY_HAVE_PC_FDC
  54         bool
  55         default y
  56
  57 config ARCH_HAS_ILOG2_U32
  58         bool
  59         default n
  60
  61 config ARCH_HAS_ILOG2_U64
  62         bool
  63         default n
  64
  65 config AUDIT_ARCH
  66         bool
  67         default y
  68
  69 config HAVE_SETUP_PER_CPU_AREA
  70         def_bool y
  71
  72 config ARCH_NO_VIRT_TO_BUS
  73         def_bool y
  74
  75 config OF
  76         def_bool y
  77
  78 config GENERIC_HARDIRQS_NO__DO_IRQ
  79         bool
  80         def_bool y
  81
  82 choice
  83         prompt "Kernel page size"
  84         default SPARC64_PAGE_SIZE_8KB
  85
  86 config SPARC64_PAGE_SIZE_8KB
  87         bool "8KB"
  88         help
  89           This lets you select the page size of the kernel.
  90
  91           8KB and 64KB work quite well, since SPARC ELF sections
  92           provide for up to 64KB alignment.
  93
  94           Therefore, 512KB and 4MB are for expert hackers only.
  95
  96           If you don't know what to do, choose 8KB.
  97
  98 config SPARC64_PAGE_SIZE_64KB
  99         bool "64KB"
 100
 101 config SPARC64_PAGE_SIZE_512KB
 102         bool "512KB"
 103
 104 config SPARC64_PAGE_SIZE_4MB
 105         bool "4MB"
 106
 107 endchoice
 108
 109 config SECCOMP
 110         bool "Enable seccomp to safely compute untrusted bytecode"
 111         depends on PROC_FS
 112         default y
 113         help
 114           This kernel feature is useful for number crunching applications
 115           that may need to compute untrusted bytecode during their
 116           execution. By using pipes or other transports made available to
 117           the process as file descriptors supporting the read/write
 118           syscalls, it's possible to isolate those applications in
 119           their own address space using seccomp. Once seccomp is
 120           enabled via /proc/<pid>/seccomp, it cannot be disabled
 121           and the task is only allowed to execute a few safe syscalls
 122           defined by each seccomp mode.
 123
 124           If unsure, say Y. Only embedded should say N here.
 125
 126 source kernel/Kconfig.hz
 127
 128 config HOTPLUG_CPU
 129         bool "Support for hot-pluggable CPUs"
 130         depends on SMP
 131         select HOTPLUG
 132         help
 133           Say Y here to experiment with turning CPUs off and on.  CPUs
 134           can be controlled through /sys/devices/system/cpu/cpu#.
 135           Say N if you want to disable CPU hotplug.
 136
 137 source "init/Kconfig"
 138
 139 config GENERIC_HARDIRQS
 140         bool
 141         default y
 142
 143 menu "General machine setup"
 144
 145 source "kernel/time/Kconfig"
 146
 147 config SMP
 148         bool "Symmetric multi-processing support"
 149         help
 150           This enables support for systems with more than one CPU. If you have
 151           a system with only one CPU, say N. If you have a system with more than
 152           one CPU, say Y.
 153
 154           If you say N here, the kernel will run on single and multiprocessor
 155           machines, but will use only one CPU of a multiprocessor machine. If
 156           you say Y here, the kernel will run on single-processor machines.
 157           On a single-processor machine, the kernel will run faster if you say
 158           N here.
 159
 160           If you don't know what to do here, say N.
 161
 162 config NR_CPUS
 163         int "Maximum number of CPUs (2-1024)"
 164         range 2 1024
 165         depends on SMP
 166         default "64"
 167
 168 source "drivers/cpufreq/Kconfig"
 169
 170 config US3_FREQ
 171         tristate "UltraSPARC-III CPU Frequency driver"
 172         depends on CPU_FREQ
 173         select CPU_FREQ_TABLE
 174         help
 175           This adds the CPUFreq driver for UltraSPARC-III processors.
 176
 177           For details, take a look at <file:Documentation/cpu-freq>.
 178
 179           If in doubt, say N.
 180
 181 config US2E_FREQ
 182         tristate "UltraSPARC-IIe CPU Frequency driver"
 183         depends on CPU_FREQ
 184         select CPU_FREQ_TABLE
 185         help
 186           This adds the CPUFreq driver for UltraSPARC-IIe processors.
 187
 188           For details, take a look at <file:Documentation/cpu-freq>.
 189
 190           If in doubt, say N.
 191
 192 # Global things across all Sun machines.
 193 config GENERIC_LOCKBREAK
 194         bool
 195         default y
 196         depends on SMP && PREEMPT
 197
 198 config RWSEM_GENERIC_SPINLOCK
 199         bool
 200
 201 config RWSEM_XCHGADD_ALGORITHM
 202         bool
 203         default y
 204
 205 config GENERIC_FIND_NEXT_BIT
 206         bool
 207         default y
 208
 209 config GENERIC_HWEIGHT
 210         bool
 211         default y if !ULTRA_HAS_POPULATION_COUNT
 212
 213 config GENERIC_CALIBRATE_DELAY
 214         bool
 215         default y
 216
 217 choice
 218         prompt "SPARC64 Huge TLB Page Size"
 219         depends on HUGETLB_PAGE
 220         default HUGETLB_PAGE_SIZE_4MB
 221
 222 config HUGETLB_PAGE_SIZE_4MB
 223         bool "4MB"
 224
 225 config HUGETLB_PAGE_SIZE_512K
 226         depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB
 227         bool "512K"
 228
 229 config HUGETLB_PAGE_SIZE_64K
 230         depends on !SPARC64_PAGE_SIZE_4MB && !SPARC64_PAGE_SIZE_512KB && !SPARC64_PAGE_SIZE_64KB
 231         bool "64K"
 232
 233 endchoice
 234
 235 endmenu
 236
 237 config NUMA
 238         bool "NUMA support"
 239
 240 config NODES_SHIFT
 241         int
 242         default "4"
 243         depends on NEED_MULTIPLE_NODES
 244
 245 # Some NUMA nodes have memory ranges that span
 246 # other nodes.  Even though a pfn is valid and
 247 # between a node's start and end pfns, it may not
 248 # reside on that node.  See memmap_init_zone()
 249 # for details.
 250 config NODES_SPAN_OTHER_NODES
 251         def_bool y
 252         depends on NEED_MULTIPLE_NODES
 253
 254 config ARCH_POPULATES_NODE_MAP
 255         def_bool y
 256
 257 config ARCH_SELECT_MEMORY_MODEL
 258         def_bool y
 259
 260 config ARCH_SPARSEMEM_ENABLE
 261         def_bool y
 262         select SPARSEMEM_VMEMMAP_ENABLE
 263
 264 config ARCH_SPARSEMEM_DEFAULT
 265         def_bool y
 266
 267 source "mm/Kconfig"
 268
 269 config ISA
 270         bool
 271
 272 config ISAPNP
 273         bool
 274
 275 config EISA
 276         bool
 277
 278 config MCA
 279         bool
 280
 281 config PCMCIA
 282         tristate
 283         help
 284           Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
 285           computer.  These are credit-card size devices such as network cards,
 286           modems or hard drives often used with laptops computers.  There are
 287           actually two varieties of these cards: the older 16 bit PCMCIA cards
 288           and the newer 32 bit CardBus cards.  If you want to use CardBus
 289           cards, you need to say Y here and also to "CardBus support" below.
 290
 291           To use your PC-cards, you will need supporting software from David
 292           Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
 293           for location).  Please also read the PCMCIA-HOWTO, available from
 294           <http://www.tldp.org/docs.html#howto>.
 295
 296           To compile this driver as modules, choose M here: the
 297           modules will be called pcmcia_core and ds.
 298
 299 config SBUS
 300         bool
 301         default y
 302
 303 config SBUSCHAR
 304         bool
 305         default y
 306
 307 config SUN_AUXIO
 308         bool
 309         default y
 310
 311 config SUN_IO
 312         bool
 313         default y
 314
 315 config SUN_LDOMS
 316         bool "Sun Logical Domains support"
 317         help
 318           Say Y here is you want to support virtual devices via
 319           Logical Domains.
 320
 321 config PCI
 322         bool "PCI support"
 323         select ARCH_SUPPORTS_MSI
 324         help
 325           Find out whether your system includes a PCI bus. PCI is the name of
 326           a bus system, i.e. the way the CPU talks to the other stuff inside
 327           your box.  If you say Y here, the kernel will include drivers and
 328           infrastructure code to support PCI bus devices.
 329
 330 config PCI_DOMAINS
 331         def_bool PCI
 332
 333 config PCI_SYSCALL
 334         def_bool PCI
 335
 336 source "drivers/pci/Kconfig"
 337
 338 config SUN_OPENPROMFS
 339         tristate "Openprom tree appears in /proc/openprom"
 340         help
 341           If you say Y, the OpenPROM device tree will be available as a
 342           virtual file system, which you can mount to /proc/openprom by "mount
 343           -t openpromfs none /proc/openprom".
 344
 345           To compile the /proc/openprom support as a module, choose M here: the
 346           module will be called openpromfs.  If unsure, choose M.
 347
 348 menu "Executable file formats"
 349
 350 source "fs/Kconfig.binfmt"
 351
 352 config COMPAT
 353         bool
 354         default y
 355         select COMPAT_BINFMT_ELF
 356
 357 config SYSVIPC_COMPAT
 358         bool
 359         depends on COMPAT && SYSVIPC
 360         default y
 361
 362 endmenu
 363
 364 config SCHED_SMT
 365         bool "SMT (Hyperthreading) scheduler support"
 366         depends on SMP
 367         default y
 368         help
 369           SMT scheduler support improves the CPU scheduler's decision making
 370           when dealing with SPARC cpus at a cost of slightly increased overhead
 371           in some places. If unsure say N here.
 372
 373 config SCHED_MC
 374         bool "Multi-core scheduler support"
 375         depends on SMP
 376         default y
 377         help
 378           Multi-core scheduler support improves the CPU scheduler's decision
 379           making when dealing with multi-core CPU chips at a cost of slightly
 380           increased overhead in some places. If unsure say N here.
 381
 382 source "kernel/Kconfig.preempt"
 383
 384 config CMDLINE_BOOL
 385         bool "Default bootloader kernel arguments"
 386
 387 config CMDLINE
 388         string "Initial kernel command string"
 389         depends on CMDLINE_BOOL
 390         default "console=ttyS0,9600 root=/dev/sda1"
 391         help
 392           Say Y here if you want to be able to pass default arguments to
 393           the kernel. This will be overridden by the bootloader, if you
 394           use one (such as SILO). This is most useful if you want to boot
 395           a kernel from TFTP, and want default options to be available
 396           with having them passed on the command line.
 397
 398           NOTE: This option WILL override the PROM bootargs setting!
 399
 400 source "net/Kconfig"
 401
 402 source "drivers/Kconfig"
 403
 404 source "drivers/sbus/char/Kconfig"
 405
 406 source "fs/Kconfig"
 407
 408 source "arch/sparc64/Kconfig.debug"
 409
 410 source "security/Kconfig"
 411
 412 source "crypto/Kconfig"
 413
 414 source "lib/Kconfig"