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