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