arch/powerpc/platforms/Kconfig.cputype

   1 config PPC64
   2         bool "64-bit kernel"
   3         default n
   4         select HAVE_VIRT_CPU_ACCOUNTING
   5         help
   6           This option selects whether a 32-bit or a 64-bit kernel
   7           will be built.
   8
   9 menu "Processor support"
  10 choice
  11         prompt "Processor Type"
  12         depends on PPC32
  13         help
  14           There are five families of 32 bit PowerPC chips supported.
  15           The most common ones are the desktop and server CPUs (601, 603,
  16           604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
  17           embedded 512x/52xx/82xx/83xx/86xx counterparts.
  18           The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
  19           (85xx) each form a family of their own that is not compatible
  20           with the others.
  21
  22           If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
  23
  24 config PPC_BOOK3S_32
  25         bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
  26         select PPC_FPU
  27
  28 config PPC_85xx
  29         bool "Freescale 85xx"
  30         select E500
  31
  32 config PPC_8xx
  33         bool "Freescale 8xx"
  34         select FSL_SOC
  35         select 8xx
  36         select PPC_LIB_RHEAP
  37
  38 config 40x
  39         bool "AMCC 40x"
  40         select PPC_DCR_NATIVE
  41         select PPC_UDBG_16550
  42         select 4xx_SOC
  43         select PPC_PCI_CHOICE
  44
  45 config 44x
  46         bool "AMCC 44x, 46x or 47x"
  47         select PPC_DCR_NATIVE
  48         select PPC_UDBG_16550
  49         select 4xx_SOC
  50         select PPC_PCI_CHOICE
  51         select PHYS_64BIT
  52
  53 config E200
  54         bool "Freescale e200"
  55
  56 endchoice
  57
  58 choice
  59         prompt "Processor Type"
  60         depends on PPC64
  61         help
  62           There are two families of 64 bit PowerPC chips supported.
  63           The most common ones are the desktop and server CPUs
  64           (POWER3, RS64, POWER4, POWER5, POWER5+, POWER6, ...)
  65
  66           The other are the "embedded" processors compliant with the
  67           "Book 3E" variant of the architecture
  68
  69 config PPC_BOOK3S_64
  70         bool "Server processors"
  71         select PPC_FPU
  72         select PPC_HAVE_PMU_SUPPORT
  73         select SYS_SUPPORTS_HUGETLBFS
  74         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
  75
  76 config PPC_BOOK3E_64
  77         bool "Embedded processors"
  78         select PPC_FPU # Make it a choice ?
  79         select PPC_SMP_MUXED_IPI
  80         select PPC_DOORBELL
  81
  82 endchoice
  83
  84 choice
  85         prompt "CPU selection"
  86         depends on PPC64
  87         default GENERIC_CPU
  88         help
  89           This will create a kernel which is optimised for a particular CPU.
  90           The resulting kernel may not run on other CPUs, so use this with care.
  91
  92           If unsure, select Generic.
  93
  94 config GENERIC_CPU
  95         bool "Generic"
  96         depends on !CPU_LITTLE_ENDIAN
  97
  98 config CELL_CPU
  99         bool "Cell Broadband Engine"
 100         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 101
 102 config POWER4_CPU
 103         bool "POWER4"
 104         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 105
 106 config POWER5_CPU
 107         bool "POWER5"
 108         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 109
 110 config POWER6_CPU
 111         bool "POWER6"
 112         depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 113
 114 config POWER7_CPU
 115         bool "POWER7"
 116         depends on PPC_BOOK3S_64
 117
 118 config E5500_CPU
 119         bool "Freescale e5500"
 120         depends on E500
 121
 122 config E6500_CPU
 123         bool "Freescale e6500"
 124         depends on E500
 125
 126 endchoice
 127
 128 config PPC_BOOK3S
 129         def_bool y
 130         depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
 131
 132 config PPC_BOOK3E
 133         def_bool y
 134         depends on PPC_BOOK3E_64
 135
 136 config 6xx
 137         def_bool y
 138         depends on PPC32 && PPC_BOOK3S
 139         select PPC_HAVE_PMU_SUPPORT
 140
 141 config POWER3
 142         depends on PPC64 && PPC_BOOK3S
 143         def_bool y
 144
 145 config POWER4
 146         depends on PPC64 && PPC_BOOK3S
 147         def_bool y
 148
 149 config PPC_A2
 150         bool
 151         depends on PPC_BOOK3E_64
 152
 153 config TUNE_CELL
 154         bool "Optimize for Cell Broadband Engine"
 155         depends on PPC64 && PPC_BOOK3S
 156         help
 157           Cause the compiler to optimize for the PPE of the Cell Broadband
 158           Engine. This will make the code run considerably faster on Cell
 159           but somewhat slower on other machines. This option only changes
 160           the scheduling of instructions, not the selection of instructions
 161           itself, so the resulting kernel will keep running on all other
 162           machines.
 163
 164 # this is temp to handle compat with arch=ppc
 165 config 8xx
 166         bool
 167
 168 config E500
 169         select FSL_EMB_PERFMON
 170         select PPC_FSL_BOOK3E
 171         bool
 172
 173 config PPC_E500MC
 174         bool "e500mc Support"
 175         select PPC_FPU
 176         select COMMON_CLK
 177         depends on E500
 178         help
 179           This must be enabled for running on e500mc (and derivatives
 180           such as e5500/e6500), and must be disabled for running on
 181           e500v1 or e500v2.
 182
 183 config PPC_FPU
 184         bool
 185         default y if PPC64
 186
 187 config FSL_EMB_PERFMON
 188         bool "Freescale Embedded Perfmon"
 189         depends on E500 || PPC_83xx
 190         help
 191           This is the Performance Monitor support found on the e500 core
 192           and some e300 cores (c3 and c4).  Select this only if your
 193           core supports the Embedded Performance Monitor APU
 194
 195 config FSL_EMB_PERF_EVENT
 196         bool
 197         depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
 198         default y
 199
 200 config FSL_EMB_PERF_EVENT_E500
 201         bool
 202         depends on FSL_EMB_PERF_EVENT && E500
 203         default y
 204
 205 config 4xx
 206         bool
 207         depends on 40x || 44x
 208         default y
 209
 210 config BOOKE
 211         bool
 212         depends on E200 || E500 || 44x || PPC_BOOK3E
 213         default y
 214
 215 config FSL_BOOKE
 216         bool
 217         depends on (E200 || E500) && PPC32
 218         default y
 219
 220 # this is for common code between PPC32 & PPC64 FSL BOOKE
 221 config PPC_FSL_BOOK3E
 222         bool
 223         select FSL_EMB_PERFMON
 224         select PPC_SMP_MUXED_IPI
 225         select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 226         select PPC_DOORBELL
 227         default y if FSL_BOOKE
 228
 229 config PTE_64BIT
 230         bool
 231         depends on 44x || E500 || PPC_86xx
 232         default y if PHYS_64BIT
 233
 234 config PHYS_64BIT
 235         bool 'Large physical address support' if E500 || PPC_86xx
 236         depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
 237         ---help---
 238           This option enables kernel support for larger than 32-bit physical
 239           addresses.  This feature may not be available on all cores.
 240
 241           If you have more than 3.5GB of RAM or so, you also need to enable
 242           SWIOTLB under Kernel Options for this to work.  The actual number
 243           is platform-dependent.
 244
 245           If in doubt, say N here.
 246
 247 config ALTIVEC
 248         bool "AltiVec Support"
 249         depends on 6xx || POWER4 || (PPC_E500MC && PPC64)
 250         ---help---
 251           This option enables kernel support for the Altivec extensions to the
 252           PowerPC processor. The kernel currently supports saving and restoring
 253           altivec registers, and turning on the 'altivec enable' bit so user
 254           processes can execute altivec instructions.
 255
 256           This option is only usefully if you have a processor that supports
 257           altivec (G4, otherwise known as 74xx series), but does not have
 258           any affect on a non-altivec cpu (it does, however add code to the
 259           kernel).
 260
 261           If in doubt, say Y here.
 262
 263 config VSX
 264         bool "VSX Support"
 265         depends on POWER4 && ALTIVEC && PPC_FPU
 266         ---help---
 267
 268           This option enables kernel support for the Vector Scaler extensions
 269           to the PowerPC processor. The kernel currently supports saving and
 270           restoring VSX registers, and turning on the 'VSX enable' bit so user
 271           processes can execute VSX instructions.
 272
 273           This option is only useful if you have a processor that supports
 274           VSX (P7 and above), but does not have any affect on a non-VSX
 275           CPUs (it does, however add code to the kernel).
 276
 277           If in doubt, say Y here.
 278
 279 config PPC_ICSWX
 280         bool "Support for PowerPC icswx coprocessor instruction"
 281         depends on POWER4 || PPC_A2
 282         default n
 283         ---help---
 284
 285           This option enables kernel support for the PowerPC Initiate
 286           Coprocessor Store Word (icswx) coprocessor instruction on POWER7
 287           or newer processors.
 288
 289           This option is only useful if you have a processor that supports
 290           the icswx coprocessor instruction. It does not have any effect
 291           on processors without the icswx coprocessor instruction.
 292
 293           This option slightly increases kernel memory usage.
 294
 295           If in doubt, say N here.
 296
 297 config PPC_ICSWX_PID
 298         bool "icswx requires direct PID management"
 299         depends on PPC_ICSWX && POWER4
 300         default y
 301         ---help---
 302           The PID register in server is used explicitly for ICSWX.  In
 303           embedded systems PID management is done by the system.
 304
 305 config PPC_ICSWX_USE_SIGILL
 306         bool "Should a bad CT cause a SIGILL?"
 307         depends on PPC_ICSWX
 308         default n
 309         ---help---
 310           Should a bad CT used for "non-record form ICSWX" cause an
 311           illegal instruction signal or should it be silent as
 312           architected.
 313
 314           If in doubt, say N here.
 315
 316 config SPE
 317         bool "SPE Support"
 318         depends on E200 || (E500 && !PPC_E500MC)
 319         default y
 320         ---help---
 321           This option enables kernel support for the Signal Processing
 322           Extensions (SPE) to the PowerPC processor. The kernel currently
 323           supports saving and restoring SPE registers, and turning on the
 324           'spe enable' bit so user processes can execute SPE instructions.
 325
 326           This option is only useful if you have a processor that supports
 327           SPE (e500, otherwise known as 85xx series), but does not have any
 328           effect on a non-spe cpu (it does, however add code to the kernel).
 329
 330           If in doubt, say Y here.
 331
 332 config PPC_STD_MMU
 333         def_bool y
 334         depends on PPC_BOOK3S
 335
 336 config PPC_STD_MMU_32
 337         def_bool y
 338         depends on PPC_STD_MMU && PPC32
 339
 340 config PPC_STD_MMU_64
 341         def_bool y
 342         depends on PPC_STD_MMU && PPC64
 343
 344 config PPC_MMU_NOHASH
 345         def_bool y
 346         depends on !PPC_STD_MMU
 347
 348 config PPC_BOOK3E_MMU
 349         def_bool y
 350         depends on FSL_BOOKE || PPC_BOOK3E
 351
 352 config PPC_MM_SLICES
 353         bool
 354         default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
 355         default n
 356
 357 config PPC_HAVE_PMU_SUPPORT
 358        bool
 359
 360 config PPC_PERF_CTRS
 361        def_bool y
 362        depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
 363        help
 364          This enables the powerpc-specific perf_event back-end.
 365
 366 config SMP
 367         depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
 368         bool "Symmetric multi-processing support"
 369         ---help---
 370           This enables support for systems with more than one CPU. If you have
 371           a system with only one CPU, say N. If you have a system with more
 372           than one CPU, say Y.  Note that the kernel does not currently
 373           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 374           since they have inadequate hardware support for multiprocessor
 375           operation.
 376
 377           If you say N here, the kernel will run on single and multiprocessor
 378           machines, but will use only one CPU of a multiprocessor machine. If
 379           you say Y here, the kernel will run on single-processor machines.
 380           On a single-processor machine, the kernel will run faster if you say
 381           N here.
 382
 383           If you don't know what to do here, say N.
 384
 385 config NR_CPUS
 386         int "Maximum number of CPUs (2-8192)"
 387         range 2 8192
 388         depends on SMP
 389         default "32" if PPC64
 390         default "4"
 391
 392 config NOT_COHERENT_CACHE
 393         bool
 394         depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
 395         default n if PPC_47x
 396         default y
 397
 398 config CHECK_CACHE_COHERENCY
 399         bool
 400
 401 config PPC_DOORBELL
 402         bool
 403         default n
 404
 405 endmenu
 406
 407 choice
 408         prompt "Endianness selection"
 409         default CPU_BIG_ENDIAN
 410         help
 411           This option selects whether a big endian or little endian kernel will
 412           be built.
 413
 414 config CPU_BIG_ENDIAN
 415         bool "Build big endian kernel"
 416         help
 417           Build a big endian kernel.
 418
 419           If unsure, select this option.
 420
 421 config CPU_LITTLE_ENDIAN
 422         bool "Build little endian kernel"
 423         help
 424           Build a little endian kernel.
 425
 426           Note that if cross compiling a little endian kernel,
 427           CROSS_COMPILE must point to a toolchain capable of targeting
 428           little endian powerpc.
 429
 430 endchoice