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_DYNAMIC_FTRACE
  15         select HAVE_FTRACE
  16         select HAVE_IDE
  17         select HAVE_LMB
  18         select HAVE_ARCH_KGDB
  19         select USE_GENERIC_SMP_HELPERS if SMP
  20         select HAVE_ARCH_TRACEHOOK
  21         select ARCH_WANT_OPTIONAL_GPIOLIB
  22         select RTC_CLASS
  23         select RTC_DRV_M48T59
  24         select RTC_DRV_CMOS
  25         select RTC_DRV_BQ4802
  26         select RTC_DRV_SUN4V
  27         select RTC_DRV_STARFIRE
  28
  29 config GENERIC_TIME
  30         bool
  31         default y
  32
  33 config GENERIC_CMOS_UPDATE
  34         bool
  35         default y
  36
  37 config GENERIC_CLOCKEVENTS
  38         bool
  39         default y
  40
  41 config GENERIC_GPIO
  42         bool
  43         help
  44           Generic GPIO API support
  45
  46 config 64BIT
  47         def_bool y
  48
  49 config MMU
  50         bool
  51         default y
  52
  53 config IOMMU_HELPER
  54         bool
  55         default y
  56
  57 config QUICKLIST
  58         bool
  59         default y
  60
  61 config STACKTRACE_SUPPORT
  62         bool
  63         default y
  64
  65 config LOCKDEP_SUPPORT
  66         bool
  67         default y
  68
  69 config ARCH_MAY_HAVE_PC_FDC
  70         bool
  71         default y
  72
  73 config ARCH_HAS_ILOG2_U32
  74         bool
  75         default n
  76
  77 config ARCH_HAS_ILOG2_U64
  78         bool
  79         default n
  80
  81 config AUDIT_ARCH
  82         bool
  83         default y
  84
  85 config HAVE_SETUP_PER_CPU_AREA
  86         def_bool y
  87
  88 config ARCH_NO_VIRT_TO_BUS
  89         def_bool y
  90
  91 config OF
  92         def_bool y
  93
  94 config GENERIC_HARDIRQS_NO__DO_IRQ
  95         bool
  96         def_bool y
  97
  98 source "init/Kconfig"
  99
 100 menu "Processor type and features"
 101
 102 choice
 103         prompt "Kernel page size"
 104         default SPARC64_PAGE_SIZE_8KB
 105
 106 config SPARC64_PAGE_SIZE_8KB
 107         bool "8KB"
 108         help
 109           This lets you select the page size of the kernel.
 110
 111           8KB and 64KB work quite well, since SPARC ELF sections
 112           provide for up to 64KB alignment.
 113
 114           If you don't know what to do, choose 8KB.
 115
 116 config SPARC64_PAGE_SIZE_64KB
 117         bool "64KB"
 118
 119 endchoice
 120
 121 config SECCOMP
 122         bool "Enable seccomp to safely compute untrusted bytecode"
 123         depends on PROC_FS
 124         default y
 125         help
 126           This kernel feature is useful for number crunching applications
 127           that may need to compute untrusted bytecode during their
 128           execution. By using pipes or other transports made available to
 129           the process as file descriptors supporting the read/write
 130           syscalls, it's possible to isolate those applications in
 131           their own address space using seccomp. Once seccomp is
 132           enabled via /proc/<pid>/seccomp, it cannot be disabled
 133           and the task is only allowed to execute a few safe syscalls
 134           defined by each seccomp mode.
 135
 136           If unsure, say Y. Only embedded should say N here.
 137
 138 source kernel/Kconfig.hz
 139
 140 config HOTPLUG_CPU
 141         bool "Support for hot-pluggable CPUs"
 142         depends on SMP
 143         select HOTPLUG
 144         help
 145           Say Y here to experiment with turning CPUs off and on.  CPUs
 146           can be controlled through /sys/devices/system/cpu/cpu#.
 147           Say N if you want to disable CPU hotplug.
 148
 149 config GENERIC_HARDIRQS
 150         bool
 151         default y
 152
 153 source "kernel/time/Kconfig"
 154
 155 config SMP
 156         bool "Symmetric multi-processing support"
 157         help
 158           This enables support for systems with more than one CPU. If you have
 159           a system with only one CPU, say N. If you have a system with more than
 160           one CPU, say Y.
 161
 162           If you say N here, the kernel will run on single and multiprocessor
 163           machines, but will use only one CPU of a multiprocessor machine. If
 164           you say Y here, the kernel will run on single-processor machines.
 165           On a single-processor machine, the kernel will run faster if you say
 166           N here.
 167
 168           If you don't know what to do here, say N.
 169
 170 config NR_CPUS
 171         int "Maximum number of CPUs (2-1024)"
 172         range 2 1024
 173         depends on SMP
 174         default "64"
 175
 176 source "drivers/cpufreq/Kconfig"
 177
 178 config US3_FREQ
 179         tristate "UltraSPARC-III CPU Frequency driver"
 180         depends on CPU_FREQ
 181         select CPU_FREQ_TABLE
 182         help
 183           This adds the CPUFreq driver for UltraSPARC-III processors.
 184
 185           For details, take a look at <file:Documentation/cpu-freq>.
 186
 187           If in doubt, say N.
 188
 189 config US2E_FREQ
 190         tristate "UltraSPARC-IIe CPU Frequency driver"
 191         depends on CPU_FREQ
 192         select CPU_FREQ_TABLE
 193         help
 194           This adds the CPUFreq driver for UltraSPARC-IIe processors.
 195
 196           For details, take a look at <file:Documentation/cpu-freq>.
 197
 198           If in doubt, say N.
 199
 200 config US3_MC
 201         tristate "UltraSPARC-III Memory Controller driver"
 202         default y
 203         help
 204           This adds a driver for the UltraSPARC-III memory controller.
 205           Loading this driver allows exact mnemonic strings to be
 206           printed in the event of a memory error, so that the faulty DIMM
 207           on the motherboard can be matched to the error.
 208
 209           If in doubt, say Y, as this information can be very useful.
 210
 211 # Global things across all Sun machines.
 212 config GENERIC_LOCKBREAK
 213         bool
 214         default y
 215         depends on SMP && PREEMPT
 216
 217 config RWSEM_GENERIC_SPINLOCK
 218         bool
 219
 220 config RWSEM_XCHGADD_ALGORITHM
 221         bool
 222         default y
 223
 224 config GENERIC_FIND_NEXT_BIT
 225         bool
 226         default y
 227
 228 config GENERIC_HWEIGHT
 229         bool
 230         default y if !ULTRA_HAS_POPULATION_COUNT
 231
 232 config GENERIC_CALIBRATE_DELAY
 233         bool
 234         default y
 235
 236 choice
 237         prompt "SPARC64 Huge TLB Page Size"
 238         depends on HUGETLB_PAGE
 239         default HUGETLB_PAGE_SIZE_4MB
 240
 241 config HUGETLB_PAGE_SIZE_4MB
 242         bool "4MB"
 243
 244 config HUGETLB_PAGE_SIZE_512K
 245         bool "512K"
 246
 247 config HUGETLB_PAGE_SIZE_64K
 248         depends on !SPARC64_PAGE_SIZE_64KB
 249         bool "64K"
 250
 251 endchoice
 252
 253 endmenu
 254
 255 config NUMA
 256         bool "NUMA support"
 257         depends on SMP
 258
 259 config NODES_SHIFT
 260         int
 261         default "4"
 262         depends on NEED_MULTIPLE_NODES
 263
 264 # Some NUMA nodes have memory ranges that span
 265 # other nodes.  Even though a pfn is valid and
 266 # between a node's start and end pfns, it may not
 267 # reside on that node.  See memmap_init_zone()
 268 # for details.
 269 config NODES_SPAN_OTHER_NODES
 270         def_bool y
 271         depends on NEED_MULTIPLE_NODES
 272
 273 config ARCH_POPULATES_NODE_MAP
 274         def_bool y
 275
 276 config ARCH_SELECT_MEMORY_MODEL
 277         def_bool y
 278
 279 config ARCH_SPARSEMEM_ENABLE
 280         def_bool y
 281         select SPARSEMEM_VMEMMAP_ENABLE
 282
 283 config ARCH_SPARSEMEM_DEFAULT
 284         def_bool y
 285
 286 source "mm/Kconfig"
 287
 288 config ISA
 289         bool
 290
 291 config ISAPNP
 292         bool
 293
 294 config EISA
 295         bool
 296
 297 config MCA
 298         bool
 299
 300 config PCMCIA
 301         tristate
 302         help
 303           Say Y here if you want to attach PCMCIA- or PC-cards to your Linux
 304           computer.  These are credit-card size devices such as network cards,
 305           modems or hard drives often used with laptops computers.  There are
 306           actually two varieties of these cards: the older 16 bit PCMCIA cards
 307           and the newer 32 bit CardBus cards.  If you want to use CardBus
 308           cards, you need to say Y here and also to "CardBus support" below.
 309
 310           To use your PC-cards, you will need supporting software from David
 311           Hinds' pcmcia-cs package (see the file <file:Documentation/Changes>
 312           for location).  Please also read the PCMCIA-HOWTO, available from
 313           <http://www.tldp.org/docs.html#howto>.
 314
 315           To compile this driver as modules, choose M here: the
 316           modules will be called pcmcia_core and ds.
 317
 318 config SBUS
 319         bool
 320         default y
 321
 322 config SBUSCHAR
 323         bool
 324         default y
 325
 326 config SUN_AUXIO
 327         bool
 328         default y
 329
 330 config SUN_IO
 331         bool
 332         default y
 333
 334 config SUN_LDOMS
 335         bool "Sun Logical Domains support"
 336         help
 337           Say Y here is you want to support virtual devices via
 338           Logical Domains.
 339
 340 config PCI
 341         bool "PCI support"
 342         select ARCH_SUPPORTS_MSI
 343         help
 344           Find out whether your system includes a PCI bus. PCI is the name of
 345           a bus system, i.e. the way the CPU talks to the other stuff inside
 346           your box.  If you say Y here, the kernel will include drivers and
 347           infrastructure code to support PCI bus devices.
 348
 349 config PCI_DOMAINS
 350         def_bool PCI
 351
 352 config PCI_SYSCALL
 353         def_bool PCI
 354
 355 source "drivers/pci/Kconfig"
 356
 357 config SUN_OPENPROMFS
 358         tristate "Openprom tree appears in /proc/openprom"
 359         help
 360           If you say Y, the OpenPROM device tree will be available as a
 361           virtual file system, which you can mount to /proc/openprom by "mount
 362           -t openpromfs none /proc/openprom".
 363
 364           To compile the /proc/openprom support as a module, choose M here: the
 365           module will be called openpromfs.  If unsure, choose M.
 366
 367 menu "Executable file formats"
 368
 369 source "fs/Kconfig.binfmt"
 370
 371 config COMPAT
 372         bool
 373         default y
 374         select COMPAT_BINFMT_ELF
 375
 376 config SYSVIPC_COMPAT
 377         bool
 378         depends on COMPAT && SYSVIPC
 379         default y
 380
 381 endmenu
 382
 383 config SCHED_SMT
 384         bool "SMT (Hyperthreading) scheduler support"
 385         depends on SMP
 386         default y
 387         help
 388           SMT scheduler support improves the CPU scheduler's decision making
 389           when dealing with SPARC cpus at a cost of slightly increased overhead
 390           in some places. If unsure say N here.
 391
 392 config SCHED_MC
 393         bool "Multi-core scheduler support"
 394         depends on SMP
 395         default y
 396         help
 397           Multi-core scheduler support improves the CPU scheduler's decision
 398           making when dealing with multi-core CPU chips at a cost of slightly
 399           increased overhead in some places. If unsure say N here.
 400
 401 source "kernel/Kconfig.preempt"
 402
 403 config CMDLINE_BOOL
 404         bool "Default bootloader kernel arguments"
 405
 406 config CMDLINE
 407         string "Initial kernel command string"
 408         depends on CMDLINE_BOOL
 409         default "console=ttyS0,9600 root=/dev/sda1"
 410         help
 411           Say Y here if you want to be able to pass default arguments to
 412           the kernel. This will be overridden by the bootloader, if you
 413           use one (such as SILO). This is most useful if you want to boot
 414           a kernel from TFTP, and want default options to be available
 415           with having them passed on the command line.
 416
 417           NOTE: This option WILL override the PROM bootargs setting!
 418
 419 source "net/Kconfig"
 420
 421 source "drivers/Kconfig"
 422
 423 source "drivers/sbus/char/Kconfig"
 424
 425 source "fs/Kconfig"
 426
 427 source "arch/sparc64/Kconfig.debug"
 428
 429 source "security/Kconfig"
 430
 431 source "crypto/Kconfig"
 432
 433 source "lib/Kconfig"