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