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