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
  75 config PPC_BOOK3E_64
  76         bool "Embedded processors"
  77         select PPC_FPU # Make it a choice ?
  78         select PPC_SMP_MUXED_IPI
  79         select PPC_DOORBELL
  80
  81 endchoice
  82
  83 choice
  84         prompt "CPU selection"
  85         depends on PPC64
  86         default GENERIC_CPU
  87         help
  88           This will create a kernel which is optimised for a particular CPU.
  89           The resulting kernel may not run on other CPUs, so use this with care.
  90
  91           If unsure, select Generic.
  92
  93 config GENERIC_CPU
  94         bool "Generic"
  95
  96 config CELL_CPU
  97         bool "Cell Broadband Engine"
  98
  99 config POWER4_CPU
 100         bool "POWER4"
 101
 102 config POWER5_CPU
 103         bool "POWER5"
 104
 105 config POWER6_CPU
 106         bool "POWER6"
 107
 108 config POWER7_CPU
 109         bool "POWER7"
 110
 111 endchoice
 112
 113 config PPC_BOOK3S
 114         def_bool y
 115         depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
 116
 117 config PPC_BOOK3E
 118         def_bool y
 119         depends on PPC_BOOK3E_64
 120
 121 config 6xx
 122         def_bool y
 123         depends on PPC32 && PPC_BOOK3S
 124         select PPC_HAVE_PMU_SUPPORT
 125
 126 config POWER3
 127         depends on PPC64 && PPC_BOOK3S
 128         def_bool y
 129
 130 config POWER4
 131         depends on PPC64 && PPC_BOOK3S
 132         def_bool y
 133
 134 config PPC_A2
 135         bool
 136         depends on PPC_BOOK3E_64
 137
 138 config TUNE_CELL
 139         bool "Optimize for Cell Broadband Engine"
 140         depends on PPC64 && PPC_BOOK3S
 141         help
 142           Cause the compiler to optimize for the PPE of the Cell Broadband
 143           Engine. This will make the code run considerably faster on Cell
 144           but somewhat slower on other machines. This option only changes
 145           the scheduling of instructions, not the selection of instructions
 146           itself, so the resulting kernel will keep running on all other
 147           machines.
 148
 149 # this is temp to handle compat with arch=ppc
 150 config 8xx
 151         bool
 152
 153 config E500
 154         select FSL_EMB_PERFMON
 155         select PPC_FSL_BOOK3E
 156         bool
 157
 158 config PPC_E500MC
 159         bool "e500mc Support"
 160         select PPC_FPU
 161         depends on E500
 162         help
 163           This must be enabled for running on e500mc (and derivatives
 164           such as e5500/e6500), and must be disabled for running on
 165           e500v1 or e500v2.
 166
 167 config PPC_FPU
 168         bool
 169         default y if PPC64
 170
 171 config FSL_EMB_PERFMON
 172         bool "Freescale Embedded Perfmon"
 173         depends on E500 || PPC_83xx
 174         help
 175           This is the Performance Monitor support found on the e500 core
 176           and some e300 cores (c3 and c4).  Select this only if your
 177           core supports the Embedded Performance Monitor APU
 178
 179 config FSL_EMB_PERF_EVENT
 180         bool
 181         depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
 182         default y
 183
 184 config FSL_EMB_PERF_EVENT_E500
 185         bool
 186         depends on FSL_EMB_PERF_EVENT && E500
 187         default y
 188
 189 config 4xx
 190         bool
 191         depends on 40x || 44x
 192         default y
 193
 194 config BOOKE
 195         bool
 196         depends on E200 || E500 || 44x || PPC_BOOK3E
 197         default y
 198
 199 config FSL_BOOKE
 200         bool
 201         depends on (E200 || E500) && PPC32
 202         default y
 203
 204 # this is for common code between PPC32 & PPC64 FSL BOOKE
 205 config PPC_FSL_BOOK3E
 206         bool
 207         select FSL_EMB_PERFMON
 208         select PPC_SMP_MUXED_IPI
 209         select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
 210         select PPC_DOORBELL
 211         default y if FSL_BOOKE
 212
 213 config PTE_64BIT
 214         bool
 215         depends on 44x || E500 || PPC_86xx
 216         default y if PHYS_64BIT
 217
 218 config PHYS_64BIT
 219         bool 'Large physical address support' if E500 || PPC_86xx
 220         depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
 221         ---help---
 222           This option enables kernel support for larger than 32-bit physical
 223           addresses.  This feature may not be available on all cores.
 224
 225           If you have more than 3.5GB of RAM or so, you also need to enable
 226           SWIOTLB under Kernel Options for this to work.  The actual number
 227           is platform-dependent.
 228
 229           If in doubt, say N here.
 230
 231 config ALTIVEC
 232         bool "AltiVec Support"
 233         depends on 6xx || POWER4
 234         ---help---
 235           This option enables kernel support for the Altivec extensions to the
 236           PowerPC processor. The kernel currently supports saving and restoring
 237           altivec registers, and turning on the 'altivec enable' bit so user
 238           processes can execute altivec instructions.
 239
 240           This option is only usefully if you have a processor that supports
 241           altivec (G4, otherwise known as 74xx series), but does not have
 242           any affect on a non-altivec cpu (it does, however add code to the
 243           kernel).
 244
 245           If in doubt, say Y here.
 246
 247 config VSX
 248         bool "VSX Support"
 249         depends on POWER4 && ALTIVEC && PPC_FPU
 250         ---help---
 251
 252           This option enables kernel support for the Vector Scaler extensions
 253           to the PowerPC processor. The kernel currently supports saving and
 254           restoring VSX registers, and turning on the 'VSX enable' bit so user
 255           processes can execute VSX instructions.
 256
 257           This option is only useful if you have a processor that supports
 258           VSX (P7 and above), but does not have any affect on a non-VSX
 259           CPUs (it does, however add code to the kernel).
 260
 261           If in doubt, say Y here.
 262
 263 config PPC_ICSWX
 264         bool "Support for PowerPC icswx coprocessor instruction"
 265         depends on POWER4 || PPC_A2
 266         default n
 267         ---help---
 268
 269           This option enables kernel support for the PowerPC Initiate
 270           Coprocessor Store Word (icswx) coprocessor instruction on POWER7
 271           or newer processors.
 272
 273           This option is only useful if you have a processor that supports
 274           the icswx coprocessor instruction. It does not have any effect
 275           on processors without the icswx coprocessor instruction.
 276
 277           This option slightly increases kernel memory usage.
 278
 279           If in doubt, say N here.
 280
 281 config PPC_ICSWX_PID
 282         bool "icswx requires direct PID management"
 283         depends on PPC_ICSWX && POWER4
 284         default y
 285         ---help---
 286           The PID register in server is used explicitly for ICSWX.  In
 287           embedded systems PID management is done by the system.
 288
 289 config PPC_ICSWX_USE_SIGILL
 290         bool "Should a bad CT cause a SIGILL?"
 291         depends on PPC_ICSWX
 292         default n
 293         ---help---
 294           Should a bad CT used for "non-record form ICSWX" cause an
 295           illegal instruction signal or should it be silent as
 296           architected.
 297
 298           If in doubt, say N here.
 299
 300 config SPE
 301         bool "SPE Support"
 302         depends on E200 || (E500 && !PPC_E500MC)
 303         default y
 304         ---help---
 305           This option enables kernel support for the Signal Processing
 306           Extensions (SPE) to the PowerPC processor. The kernel currently
 307           supports saving and restoring SPE registers, and turning on the
 308           'spe enable' bit so user processes can execute SPE instructions.
 309
 310           This option is only useful if you have a processor that supports
 311           SPE (e500, otherwise known as 85xx series), but does not have any
 312           effect on a non-spe cpu (it does, however add code to the kernel).
 313
 314           If in doubt, say Y here.
 315
 316 config PPC_STD_MMU
 317         def_bool y
 318         depends on PPC_BOOK3S
 319
 320 config PPC_STD_MMU_32
 321         def_bool y
 322         depends on PPC_STD_MMU && PPC32
 323
 324 config PPC_STD_MMU_64
 325         def_bool y
 326         depends on PPC_STD_MMU && PPC64
 327
 328 config PPC_MMU_NOHASH
 329         def_bool y
 330         depends on !PPC_STD_MMU
 331
 332 config PPC_BOOK3E_MMU
 333         def_bool y
 334         depends on FSL_BOOKE || PPC_BOOK3E
 335
 336 config PPC_MM_SLICES
 337         bool
 338         default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
 339         default n
 340
 341 config PPC_HAVE_PMU_SUPPORT
 342        bool
 343
 344 config PPC_PERF_CTRS
 345        def_bool y
 346        depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
 347        help
 348          This enables the powerpc-specific perf_event back-end.
 349
 350 config SMP
 351         depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
 352         bool "Symmetric multi-processing support"
 353         ---help---
 354           This enables support for systems with more than one CPU. If you have
 355           a system with only one CPU, say N. If you have a system with more
 356           than one CPU, say Y.  Note that the kernel does not currently
 357           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 358           since they have inadequate hardware support for multiprocessor
 359           operation.
 360
 361           If you say N here, the kernel will run on single and multiprocessor
 362           machines, but will use only one CPU of a multiprocessor machine. If
 363           you say Y here, the kernel will run on single-processor machines.
 364           On a single-processor machine, the kernel will run faster if you say
 365           N here.
 366
 367           If you don't know what to do here, say N.
 368
 369 config NR_CPUS
 370         int "Maximum number of CPUs (2-8192)"
 371         range 2 8192
 372         depends on SMP
 373         default "32" if PPC64
 374         default "4"
 375
 376 config NOT_COHERENT_CACHE
 377         bool
 378         depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
 379         default n if PPC_47x
 380         default y
 381
 382 config CHECK_CACHE_COHERENCY
 383         bool
 384
 385 config PPC_DOORBELL
 386         bool
 387         default n
 388
 389 endmenu