1config 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 9menu "Processor support" 10choice 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 24config PPC_BOOK3S_32 25 bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" 26 select PPC_FPU 27 28config PPC_85xx 29 bool "Freescale 85xx" 30 select E500 31 32config PPC_8xx 33 bool "Freescale 8xx" 34 select FSL_SOC 35 select 8xx 36 select PPC_LIB_RHEAP 37 38config 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 45config 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 53config E200 54 bool "Freescale e200" 55 56endchoice 57 58choice 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 (POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...) 65 66 The other are the "embedded" processors compliant with the 67 "Book 3E" variant of the architecture 68 69config 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 select ARCH_SUPPORTS_NUMA_BALANCING 76 select IRQ_WORK 77 78config PPC_BOOK3E_64 79 bool "Embedded processors" 80 select PPC_FPU # Make it a choice ? 81 select PPC_SMP_MUXED_IPI 82 select PPC_DOORBELL 83 84endchoice 85 86choice 87 prompt "CPU selection" 88 depends on PPC64 89 default GENERIC_CPU 90 help 91 This will create a kernel which is optimised for a particular CPU. 92 The resulting kernel may not run on other CPUs, so use this with care. 93 94 If unsure, select Generic. 95 96config GENERIC_CPU 97 bool "Generic" 98 depends on !CPU_LITTLE_ENDIAN 99 100config CELL_CPU 101 bool "Cell Broadband Engine" 102 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 103 104config POWER4_CPU 105 bool "POWER4" 106 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 107 108config POWER5_CPU 109 bool "POWER5" 110 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 111 112config POWER6_CPU 113 bool "POWER6" 114 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 115 116config POWER7_CPU 117 bool "POWER7" 118 depends on PPC_BOOK3S_64 119 select ARCH_HAS_FAST_MULTIPLIER 120 121config POWER8_CPU 122 bool "POWER8" 123 depends on PPC_BOOK3S_64 124 select ARCH_HAS_FAST_MULTIPLIER 125 126config E5500_CPU 127 bool "Freescale e5500" 128 depends on E500 129 130config E6500_CPU 131 bool "Freescale e6500" 132 depends on E500 133 134endchoice 135 136config PPC_BOOK3S 137 def_bool y 138 depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 139 140config PPC_BOOK3E 141 def_bool y 142 depends on PPC_BOOK3E_64 143 144config 6xx 145 def_bool y 146 depends on PPC32 && PPC_BOOK3S 147 select PPC_HAVE_PMU_SUPPORT 148 149config TUNE_CELL 150 bool "Optimize for Cell Broadband Engine" 151 depends on PPC64 && PPC_BOOK3S 152 help 153 Cause the compiler to optimize for the PPE of the Cell Broadband 154 Engine. This will make the code run considerably faster on Cell 155 but somewhat slower on other machines. This option only changes 156 the scheduling of instructions, not the selection of instructions 157 itself, so the resulting kernel will keep running on all other 158 machines. 159 160# this is temp to handle compat with arch=ppc 161config 8xx 162 bool 163 164config E500 165 select FSL_EMB_PERFMON 166 select PPC_FSL_BOOK3E 167 bool 168 169config PPC_E500MC 170 bool "e500mc Support" 171 select PPC_FPU 172 select COMMON_CLK 173 depends on E500 174 help 175 This must be enabled for running on e500mc (and derivatives 176 such as e5500/e6500), and must be disabled for running on 177 e500v1 or e500v2. 178 179config PPC_FPU 180 bool 181 default y if PPC64 182 183config FSL_EMB_PERFMON 184 bool "Freescale Embedded Perfmon" 185 depends on E500 || PPC_83xx 186 help 187 This is the Performance Monitor support found on the e500 core 188 and some e300 cores (c3 and c4). Select this only if your 189 core supports the Embedded Performance Monitor APU 190 191config FSL_EMB_PERF_EVENT 192 bool 193 depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS 194 default y 195 196config FSL_EMB_PERF_EVENT_E500 197 bool 198 depends on FSL_EMB_PERF_EVENT && E500 199 default y 200 201config 4xx 202 bool 203 depends on 40x || 44x 204 default y 205 206config BOOKE 207 bool 208 depends on E200 || E500 || 44x || PPC_BOOK3E 209 default y 210 211config FSL_BOOKE 212 bool 213 depends on (E200 || E500) && PPC32 214 default y 215 216# this is for common code between PPC32 & PPC64 FSL BOOKE 217config PPC_FSL_BOOK3E 218 bool 219 select FSL_EMB_PERFMON 220 select PPC_SMP_MUXED_IPI 221 select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64 222 select PPC_DOORBELL 223 default y if FSL_BOOKE 224 225config PTE_64BIT 226 bool 227 depends on 44x || E500 || PPC_86xx 228 default y if PHYS_64BIT 229 230config PHYS_64BIT 231 bool 'Large physical address support' if E500 || PPC_86xx 232 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx 233 ---help--- 234 This option enables kernel support for larger than 32-bit physical 235 addresses. This feature may not be available on all cores. 236 237 If you have more than 3.5GB of RAM or so, you also need to enable 238 SWIOTLB under Kernel Options for this to work. The actual number 239 is platform-dependent. 240 241 If in doubt, say N here. 242 243config ALTIVEC 244 bool "AltiVec Support" 245 depends on 6xx || PPC_BOOK3S_64 || (PPC_E500MC && PPC64) 246 ---help--- 247 This option enables kernel support for the Altivec extensions to the 248 PowerPC processor. The kernel currently supports saving and restoring 249 altivec registers, and turning on the 'altivec enable' bit so user 250 processes can execute altivec instructions. 251 252 This option is only usefully if you have a processor that supports 253 altivec (G4, otherwise known as 74xx series), but does not have 254 any affect on a non-altivec cpu (it does, however add code to the 255 kernel). 256 257 If in doubt, say Y here. 258 259config VSX 260 bool "VSX Support" 261 depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU 262 ---help--- 263 264 This option enables kernel support for the Vector Scaler extensions 265 to the PowerPC processor. The kernel currently supports saving and 266 restoring VSX registers, and turning on the 'VSX enable' bit so user 267 processes can execute VSX instructions. 268 269 This option is only useful if you have a processor that supports 270 VSX (P7 and above), but does not have any affect on a non-VSX 271 CPUs (it does, however add code to the kernel). 272 273 If in doubt, say Y here. 274 275config PPC_ICSWX 276 bool "Support for PowerPC icswx coprocessor instruction" 277 depends on PPC_BOOK3S_64 278 default n 279 ---help--- 280 281 This option enables kernel support for the PowerPC Initiate 282 Coprocessor Store Word (icswx) coprocessor instruction on POWER7 283 or newer processors. 284 285 This option is only useful if you have a processor that supports 286 the icswx coprocessor instruction. It does not have any effect 287 on processors without the icswx coprocessor instruction. 288 289 This option slightly increases kernel memory usage. 290 291 If in doubt, say N here. 292 293config PPC_ICSWX_PID 294 bool "icswx requires direct PID management" 295 depends on PPC_ICSWX 296 default y 297 ---help--- 298 The PID register in server is used explicitly for ICSWX. In 299 embedded systems PID management is done by the system. 300 301config PPC_ICSWX_USE_SIGILL 302 bool "Should a bad CT cause a SIGILL?" 303 depends on PPC_ICSWX 304 default n 305 ---help--- 306 Should a bad CT used for "non-record form ICSWX" cause an 307 illegal instruction signal or should it be silent as 308 architected. 309 310 If in doubt, say N here. 311 312config SPE_POSSIBLE 313 def_bool y 314 depends on E200 || (E500 && !PPC_E500MC) 315 316config SPE 317 bool "SPE Support" 318 depends on SPE_POSSIBLE 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 332config PPC_STD_MMU 333 def_bool y 334 depends on PPC_BOOK3S 335 336config PPC_STD_MMU_32 337 def_bool y 338 depends on PPC_STD_MMU && PPC32 339 340config PPC_STD_MMU_64 341 def_bool y 342 depends on PPC_STD_MMU && PPC64 343 344config PPC_MMU_NOHASH 345 def_bool y 346 depends on !PPC_STD_MMU 347 348config PPC_BOOK3E_MMU 349 def_bool y 350 depends on FSL_BOOKE || PPC_BOOK3E 351 352config 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 357config PPC_HAVE_PMU_SUPPORT 358 bool 359 360config 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 366config 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 385config 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 392config 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 398config CHECK_CACHE_COHERENCY 399 bool 400 401config PPC_DOORBELL 402 bool 403 default n 404 405endmenu 406 407choice 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 414config 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 421config CPU_LITTLE_ENDIAN 422 bool "Build little endian kernel" 423 select PPC64_BOOT_WRAPPER 424 help 425 Build a little endian kernel. 426 427 Note that if cross compiling a little endian kernel, 428 CROSS_COMPILE must point to a toolchain capable of targeting 429 little endian powerpc. 430 431endchoice 432 433config PPC64_BOOT_WRAPPER 434 def_bool n 435 depends on CPU_LITTLE_ENDIAN 436