1config PPC64 2 bool "64-bit kernel" 3 default n 4 select ZLIB_DEFLATE 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 embedded 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 select SYS_SUPPORTS_HUGETLBFS 38 39config 40x 40 bool "AMCC 40x" 41 select PPC_DCR_NATIVE 42 select PPC_UDBG_16550 43 select 4xx_SOC 44 select PPC_PCI_CHOICE 45 46config 44x 47 bool "AMCC 44x, 46x or 47x" 48 select PPC_DCR_NATIVE 49 select PPC_UDBG_16550 50 select 4xx_SOC 51 select PPC_PCI_CHOICE 52 select PHYS_64BIT 53 54config E200 55 bool "Freescale e200" 56 57endchoice 58 59choice 60 prompt "Processor Type" 61 depends on PPC64 62 help 63 There are two families of 64 bit PowerPC chips supported. 64 The most common ones are the desktop and server CPUs 65 (POWER4, POWER5, 970, POWER5+, POWER6, POWER7, POWER8 ...) 66 67 The other are the "embedded" processors compliant with the 68 "Book 3E" variant of the architecture 69 70config PPC_BOOK3S_64 71 bool "Server processors" 72 select PPC_FPU 73 select PPC_HAVE_PMU_SUPPORT 74 select SYS_SUPPORTS_HUGETLBFS 75 select HAVE_ARCH_TRANSPARENT_HUGEPAGE 76 select ARCH_SUPPORTS_NUMA_BALANCING 77 select IRQ_WORK 78 select HAVE_KERNEL_XZ 79 80config PPC_BOOK3E_64 81 bool "Embedded processors" 82 select PPC_FPU # Make it a choice ? 83 select PPC_SMP_MUXED_IPI 84 select PPC_DOORBELL 85 86endchoice 87 88choice 89 prompt "CPU selection" 90 depends on PPC64 91 default POWER8_CPU if CPU_LITTLE_ENDIAN 92 default GENERIC_CPU 93 help 94 This will create a kernel which is optimised for a particular CPU. 95 The resulting kernel may not run on other CPUs, so use this with care. 96 97 If unsure, select Generic. 98 99config GENERIC_CPU 100 bool "Generic" 101 depends on !CPU_LITTLE_ENDIAN 102 103config CELL_CPU 104 bool "Cell Broadband Engine" 105 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 106 107config POWER4_CPU 108 bool "POWER4" 109 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 110 111config POWER5_CPU 112 bool "POWER5" 113 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 114 115config POWER6_CPU 116 bool "POWER6" 117 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN 118 119config POWER7_CPU 120 bool "POWER7" 121 depends on PPC_BOOK3S_64 122 select ARCH_HAS_FAST_MULTIPLIER 123 124config POWER8_CPU 125 bool "POWER8" 126 depends on PPC_BOOK3S_64 127 select ARCH_HAS_FAST_MULTIPLIER 128 129config E5500_CPU 130 bool "Freescale e5500" 131 depends on E500 132 133config E6500_CPU 134 bool "Freescale e6500" 135 depends on E500 136 137endchoice 138 139config PPC_BOOK3S 140 def_bool y 141 depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 142 143config PPC_BOOK3E 144 def_bool y 145 depends on PPC_BOOK3E_64 146 147config 6xx 148 def_bool y 149 depends on PPC32 && PPC_BOOK3S 150 select PPC_HAVE_PMU_SUPPORT 151 152# this is temp to handle compat with arch=ppc 153config 8xx 154 bool 155 156config E500 157 select FSL_EMB_PERFMON 158 select PPC_FSL_BOOK3E 159 bool 160 161config PPC_E500MC 162 bool "e500mc Support" 163 select PPC_FPU 164 select COMMON_CLK 165 depends on E500 166 help 167 This must be enabled for running on e500mc (and derivatives 168 such as e5500/e6500), and must be disabled for running on 169 e500v1 or e500v2. 170 171config PPC_FPU 172 bool 173 default y if PPC64 174 175config PPC_8xx_PERF_EVENT 176 bool "PPC 8xx perf events" 177 depends on PPC_8xx && PERF_EVENTS 178 help 179 This is Performance Events support for PPC 8xx. The 8xx doesn't 180 have a PMU but some events are emulated using 8xx features. 181 182config FSL_EMB_PERFMON 183 bool "Freescale Embedded Perfmon" 184 depends on E500 || PPC_83xx 185 help 186 This is the Performance Monitor support found on the e500 core 187 and some e300 cores (c3 and c4). Select this only if your 188 core supports the Embedded Performance Monitor APU 189 190config FSL_EMB_PERF_EVENT 191 bool 192 depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS 193 default y 194 195config FSL_EMB_PERF_EVENT_E500 196 bool 197 depends on FSL_EMB_PERF_EVENT && E500 198 default y 199 200config 4xx 201 bool 202 depends on 40x || 44x 203 default y 204 205config BOOKE 206 bool 207 depends on E200 || E500 || 44x || PPC_BOOK3E 208 default y 209 210config FSL_BOOKE 211 bool 212 depends on (E200 || E500) && PPC32 213 default y 214 215# this is for common code between PPC32 & PPC64 FSL BOOKE 216config PPC_FSL_BOOK3E 217 bool 218 select FSL_EMB_PERFMON 219 select PPC_SMP_MUXED_IPI 220 select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64 221 select PPC_DOORBELL 222 default y if FSL_BOOKE 223 224config PTE_64BIT 225 bool 226 depends on 44x || E500 || PPC_86xx 227 default y if PHYS_64BIT 228 229config PHYS_64BIT 230 bool 'Large physical address support' if E500 || PPC_86xx 231 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx 232 ---help--- 233 This option enables kernel support for larger than 32-bit physical 234 addresses. This feature may not be available on all cores. 235 236 If you have more than 3.5GB of RAM or so, you also need to enable 237 SWIOTLB under Kernel Options for this to work. The actual number 238 is platform-dependent. 239 240 If in doubt, say N here. 241 242config ALTIVEC 243 bool "AltiVec Support" 244 depends on 6xx || PPC_BOOK3S_64 || (PPC_E500MC && PPC64) 245 ---help--- 246 This option enables kernel support for the Altivec extensions to the 247 PowerPC processor. The kernel currently supports saving and restoring 248 altivec registers, and turning on the 'altivec enable' bit so user 249 processes can execute altivec instructions. 250 251 This option is only usefully if you have a processor that supports 252 altivec (G4, otherwise known as 74xx series), but does not have 253 any affect on a non-altivec cpu (it does, however add code to the 254 kernel). 255 256 If in doubt, say Y here. 257 258config VSX 259 bool "VSX Support" 260 depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU 261 ---help--- 262 263 This option enables kernel support for the Vector Scaler extensions 264 to the PowerPC processor. The kernel currently supports saving and 265 restoring VSX registers, and turning on the 'VSX enable' bit so user 266 processes can execute VSX instructions. 267 268 This option is only useful if you have a processor that supports 269 VSX (P7 and above), but does not have any affect on a non-VSX 270 CPUs (it does, however add code to the kernel). 271 272 If in doubt, say Y here. 273 274config PPC_ICSWX 275 bool "Support for PowerPC icswx coprocessor instruction" 276 depends on PPC_BOOK3S_64 277 default n 278 ---help--- 279 280 This option enables kernel support for the PowerPC Initiate 281 Coprocessor Store Word (icswx) coprocessor instruction on POWER7 282 and POWER8 processors. POWER9 uses new copy/paste instructions 283 to invoke the coprocessor. 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_RADIX_MMU 345 bool "Radix MMU Support" 346 depends on PPC_BOOK3S_64 347 default y 348 help 349 Enable support for the Power ISA 3.0 Radix style MMU. Currently this 350 is only implemented by IBM Power9 CPUs, if you don't have one of them 351 you can probably disable this. 352 353config PPC_MMU_NOHASH 354 def_bool y 355 depends on !PPC_STD_MMU 356 357config PPC_BOOK3E_MMU 358 def_bool y 359 depends on FSL_BOOKE || PPC_BOOK3E 360 361config PPC_MM_SLICES 362 bool 363 default y if PPC_STD_MMU_64 364 default n 365 366config PPC_HAVE_PMU_SUPPORT 367 bool 368 369config PPC_PERF_CTRS 370 def_bool y 371 depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT 372 help 373 This enables the powerpc-specific perf_event back-end. 374 375config FORCE_SMP 376 # Allow platforms to force SMP=y by selecting this 377 bool 378 default n 379 select SMP 380 381config SMP 382 depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x 383 select GENERIC_IRQ_MIGRATION 384 bool "Symmetric multi-processing support" if !FORCE_SMP 385 ---help--- 386 This enables support for systems with more than one CPU. If you have 387 a system with only one CPU, say N. If you have a system with more 388 than one CPU, say Y. Note that the kernel does not currently 389 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors 390 since they have inadequate hardware support for multiprocessor 391 operation. 392 393 If you say N here, the kernel will run on single and multiprocessor 394 machines, but will use only one CPU of a multiprocessor machine. If 395 you say Y here, the kernel will run on single-processor machines. 396 On a single-processor machine, the kernel will run faster if you say 397 N here. 398 399 If you don't know what to do here, say N. 400 401config NR_CPUS 402 int "Maximum number of CPUs (2-8192)" 403 range 2 8192 404 depends on SMP 405 default "32" if PPC64 406 default "4" 407 408config NOT_COHERENT_CACHE 409 bool 410 depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON 411 default n if PPC_47x 412 default y 413 414config CHECK_CACHE_COHERENCY 415 bool 416 417config PPC_DOORBELL 418 bool 419 default n 420 421endmenu 422 423config VDSO32 424 def_bool y 425 depends on PPC32 || CPU_BIG_ENDIAN 426 help 427 This symbol controls whether we build the 32-bit VDSO. We obviously 428 want to do that if we're building a 32-bit kernel. If we're building 429 a 64-bit kernel then we only want a 32-bit VDSO if we're building for 430 big endian. That is because the only little endian configuration we 431 support is ppc64le which is 64-bit only. 432 433choice 434 prompt "Endianness selection" 435 default CPU_BIG_ENDIAN 436 help 437 This option selects whether a big endian or little endian kernel will 438 be built. 439 440config CPU_BIG_ENDIAN 441 bool "Build big endian kernel" 442 help 443 Build a big endian kernel. 444 445 If unsure, select this option. 446 447config CPU_LITTLE_ENDIAN 448 bool "Build little endian kernel" 449 depends on PPC_BOOK3S_64 450 select PPC64_BOOT_WRAPPER 451 help 452 Build a little endian kernel. 453 454 Note that if cross compiling a little endian kernel, 455 CROSS_COMPILE must point to a toolchain capable of targeting 456 little endian powerpc. 457 458endchoice 459 460config PPC64_BOOT_WRAPPER 461 def_bool n 462 depends on CPU_LITTLE_ENDIAN 463