1config PPC64 2 bool "64-bit kernel" 3 default n 4 select PPC_HAVE_PMU_SUPPORT 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 (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 69config PPC_BOOK3S_64 70 bool "Server processors" 71 select PPC_FPU 72 73config PPC_BOOK3E_64 74 bool "Embedded processors" 75 select PPC_FPU # Make it a choice ? 76 77endchoice 78 79config PPC_BOOK3S 80 def_bool y 81 depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 82 83config PPC_BOOK3E 84 def_bool y 85 depends on PPC_BOOK3E_64 86 87config POWER4_ONLY 88 bool "Optimize for POWER4" 89 depends on PPC64 && PPC_BOOK3S 90 default n 91 ---help--- 92 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. 93 The resulting binary will not work on POWER3 or RS64 processors 94 when compiled with binutils 2.15 or later. 95 96config 6xx 97 def_bool y 98 depends on PPC32 && PPC_BOOK3S 99 select PPC_HAVE_PMU_SUPPORT 100 101config POWER3 102 bool 103 depends on PPC64 && PPC_BOOK3S 104 default y if !POWER4_ONLY 105 106config POWER4 107 depends on PPC64 && PPC_BOOK3S 108 def_bool y 109 110config TUNE_CELL 111 bool "Optimize for Cell Broadband Engine" 112 depends on PPC64 && PPC_BOOK3S 113 help 114 Cause the compiler to optimize for the PPE of the Cell Broadband 115 Engine. This will make the code run considerably faster on Cell 116 but somewhat slower on other machines. This option only changes 117 the scheduling of instructions, not the selection of instructions 118 itself, so the resulting kernel will keep running on all other 119 machines. When building a kernel that is supposed to run only 120 on Cell, you should also select the POWER4_ONLY option. 121 122# this is temp to handle compat with arch=ppc 123config 8xx 124 bool 125 126config E500 127 select FSL_EMB_PERFMON 128 bool 129 130config PPC_E500MC 131 bool "e500mc Support" 132 select PPC_FPU 133 depends on E500 134 135config PPC_FPU 136 bool 137 default y if PPC64 138 139config FSL_EMB_PERFMON 140 bool "Freescale Embedded Perfmon" 141 depends on E500 || PPC_83xx 142 help 143 This is the Performance Monitor support found on the e500 core 144 and some e300 cores (c3 and c4). Select this only if your 145 core supports the Embedded Performance Monitor APU 146 147config FSL_EMB_PERF_EVENT 148 bool 149 depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS 150 default y 151 152config FSL_EMB_PERF_EVENT_E500 153 bool 154 depends on FSL_EMB_PERF_EVENT && E500 155 default y 156 157config 4xx 158 bool 159 depends on 40x || 44x 160 default y 161 162config BOOKE 163 bool 164 depends on E200 || E500 || 44x || PPC_BOOK3E 165 default y 166 167config FSL_BOOKE 168 bool 169 depends on E200 || E500 170 default y 171 172 173config PTE_64BIT 174 bool 175 depends on 44x || E500 || PPC_86xx 176 default y if PHYS_64BIT 177 178config PHYS_64BIT 179 bool 'Large physical address support' if E500 || PPC_86xx 180 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx 181 ---help--- 182 This option enables kernel support for larger than 32-bit physical 183 addresses. This feature may not be available on all cores. 184 185 If you have more than 3.5GB of RAM or so, you also need to enable 186 SWIOTLB under Kernel Options for this to work. The actual number 187 is platform-dependent. 188 189 If in doubt, say N here. 190 191config ALTIVEC 192 bool "AltiVec Support" 193 depends on 6xx || POWER4 194 ---help--- 195 This option enables kernel support for the Altivec extensions to the 196 PowerPC processor. The kernel currently supports saving and restoring 197 altivec registers, and turning on the 'altivec enable' bit so user 198 processes can execute altivec instructions. 199 200 This option is only usefully if you have a processor that supports 201 altivec (G4, otherwise known as 74xx series), but does not have 202 any affect on a non-altivec cpu (it does, however add code to the 203 kernel). 204 205 If in doubt, say Y here. 206 207config VSX 208 bool "VSX Support" 209 depends on POWER4 && ALTIVEC && PPC_FPU 210 ---help--- 211 212 This option enables kernel support for the Vector Scaler extensions 213 to the PowerPC processor. The kernel currently supports saving and 214 restoring VSX registers, and turning on the 'VSX enable' bit so user 215 processes can execute VSX instructions. 216 217 This option is only useful if you have a processor that supports 218 VSX (P7 and above), but does not have any affect on a non-VSX 219 CPUs (it does, however add code to the kernel). 220 221 If in doubt, say Y here. 222 223config SPE 224 bool "SPE Support" 225 depends on E200 || (E500 && !PPC_E500MC) 226 default y 227 ---help--- 228 This option enables kernel support for the Signal Processing 229 Extensions (SPE) to the PowerPC processor. The kernel currently 230 supports saving and restoring SPE registers, and turning on the 231 'spe enable' bit so user processes can execute SPE instructions. 232 233 This option is only useful if you have a processor that supports 234 SPE (e500, otherwise known as 85xx series), but does not have any 235 effect on a non-spe cpu (it does, however add code to the kernel). 236 237 If in doubt, say Y here. 238 239config PPC_STD_MMU 240 def_bool y 241 depends on PPC_BOOK3S 242 243config PPC_STD_MMU_32 244 def_bool y 245 depends on PPC_STD_MMU && PPC32 246 247config PPC_STD_MMU_64 248 def_bool y 249 depends on PPC_STD_MMU && PPC64 250 251config PPC_MMU_NOHASH 252 def_bool y 253 depends on !PPC_STD_MMU 254 255config PPC_MMU_NOHASH_32 256 def_bool y 257 depends on PPC_MMU_NOHASH && PPC32 258 259config PPC_MMU_NOHASH_64 260 def_bool y 261 depends on PPC_MMU_NOHASH && PPC64 262 263config PPC_BOOK3E_MMU 264 def_bool y 265 depends on FSL_BOOKE || PPC_BOOK3E 266 267config PPC_MM_SLICES 268 bool 269 default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) 270 default n 271 272config VIRT_CPU_ACCOUNTING 273 bool "Deterministic task and CPU time accounting" 274 depends on PPC64 275 default y 276 help 277 Select this option to enable more accurate task and CPU time 278 accounting. This is done by reading a CPU counter on each 279 kernel entry and exit and on transitions within the kernel 280 between system, softirq and hardirq state, so there is a 281 small performance impact. This also enables accounting of 282 stolen time on logically-partitioned systems running on 283 IBM POWER5-based machines. 284 285 If in doubt, say Y here. 286 287config PPC_HAVE_PMU_SUPPORT 288 bool 289 290config PPC_PERF_CTRS 291 def_bool y 292 depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT 293 help 294 This enables the powerpc-specific perf_event back-end. 295 296config SMP 297 depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x 298 bool "Symmetric multi-processing support" 299 ---help--- 300 This enables support for systems with more than one CPU. If you have 301 a system with only one CPU, say N. If you have a system with more 302 than one CPU, say Y. Note that the kernel does not currently 303 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors 304 since they have inadequate hardware support for multiprocessor 305 operation. 306 307 If you say N here, the kernel will run on single and multiprocessor 308 machines, but will use only one CPU of a multiprocessor machine. If 309 you say Y here, the kernel will run on single-processor machines. 310 On a single-processor machine, the kernel will run faster if you say 311 N here. 312 313 If you don't know what to do here, say N. 314 315config NR_CPUS 316 int "Maximum number of CPUs (2-8192)" 317 range 2 8192 318 depends on SMP 319 default "32" if PPC64 320 default "4" 321 322config NOT_COHERENT_CACHE 323 bool 324 depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON 325 default n if PPC_47x 326 default y 327 328config CHECK_CACHE_COHERENCY 329 bool 330 331endmenu 332