| 1 | config PPC64 |
| 2 | bool "64-bit kernel" |
| 3 | default n |
| 4 | help |
| 5 | This option selects whether a 32-bit or a 64-bit kernel |
| 6 | will be built. |
| 7 | |
| 8 | menu "Processor support" |
| 9 | choice |
| 10 | prompt "Processor Type" |
| 11 | depends on PPC32 |
| 12 | default 6xx |
| 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 6xx |
| 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 | select FSL_SOC |
| 32 | select MPC85xx |
| 33 | |
| 34 | config PPC_8xx |
| 35 | bool "Freescale 8xx" |
| 36 | select FSL_SOC |
| 37 | select 8xx |
| 38 | select PPC_LIB_RHEAP |
| 39 | |
| 40 | config 40x |
| 41 | bool "AMCC 40x" |
| 42 | select PPC_DCR_NATIVE |
| 43 | select PPC_UDBG_16550 |
| 44 | select 4xx_SOC |
| 45 | select PPC_PCI_CHOICE |
| 46 | |
| 47 | config 44x |
| 48 | bool "AMCC 44x" |
| 49 | select PPC_DCR_NATIVE |
| 50 | select PPC_UDBG_16550 |
| 51 | select 4xx_SOC |
| 52 | select PPC_PCI_CHOICE |
| 53 | select PHYS_64BIT |
| 54 | |
| 55 | config E200 |
| 56 | bool "Freescale e200" |
| 57 | |
| 58 | endchoice |
| 59 | |
| 60 | # Until we have a choice of exclusive CPU types on 64-bit, we always |
| 61 | # use PPC_BOOK3S. On 32-bit, this is equivalent to 6xx which is |
| 62 | # "classic" MMU |
| 63 | |
| 64 | config PPC_BOOK3S |
| 65 | def_bool y |
| 66 | depends on PPC64 || 6xx |
| 67 | |
| 68 | config POWER4_ONLY |
| 69 | bool "Optimize for POWER4" |
| 70 | depends on PPC64 && PPC_BOOK3S |
| 71 | default n |
| 72 | ---help--- |
| 73 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. |
| 74 | The resulting binary will not work on POWER3 or RS64 processors |
| 75 | when compiled with binutils 2.15 or later. |
| 76 | |
| 77 | config POWER3 |
| 78 | bool |
| 79 | depends on PPC64 && PPC_BOOK3S |
| 80 | default y if !POWER4_ONLY |
| 81 | |
| 82 | config POWER4 |
| 83 | depends on PPC64 && PPC_BOOK3S |
| 84 | def_bool y |
| 85 | |
| 86 | config TUNE_CELL |
| 87 | bool "Optimize for Cell Broadband Engine" |
| 88 | depends on PPC64 && PPC_BOOK3S |
| 89 | help |
| 90 | Cause the compiler to optimize for the PPE of the Cell Broadband |
| 91 | Engine. This will make the code run considerably faster on Cell |
| 92 | but somewhat slower on other machines. This option only changes |
| 93 | the scheduling of instructions, not the selection of instructions |
| 94 | itself, so the resulting kernel will keep running on all other |
| 95 | machines. When building a kernel that is supposed to run only |
| 96 | on Cell, you should also select the POWER4_ONLY option. |
| 97 | |
| 98 | # this is temp to handle compat with arch=ppc |
| 99 | config 8xx |
| 100 | bool |
| 101 | |
| 102 | config E500 |
| 103 | select FSL_EMB_PERFMON |
| 104 | bool |
| 105 | |
| 106 | config PPC_E500MC |
| 107 | bool "e500mc Support" |
| 108 | select PPC_FPU |
| 109 | depends on E500 |
| 110 | |
| 111 | config PPC_FPU |
| 112 | bool |
| 113 | default y if PPC64 |
| 114 | |
| 115 | config 4xx |
| 116 | bool |
| 117 | depends on 40x || 44x |
| 118 | default y |
| 119 | |
| 120 | config BOOKE |
| 121 | bool |
| 122 | depends on E200 || E500 || 44x |
| 123 | default y |
| 124 | |
| 125 | config FSL_BOOKE |
| 126 | bool |
| 127 | depends on E200 || E500 |
| 128 | default y |
| 129 | |
| 130 | config FSL_EMB_PERFMON |
| 131 | bool "Freescale Embedded Perfmon" |
| 132 | depends on E500 || PPC_83xx |
| 133 | help |
| 134 | This is the Performance Monitor support found on the e500 core |
| 135 | and some e300 cores (c3 and c4). Select this only if your |
| 136 | core supports the Embedded Performance Monitor APU |
| 137 | |
| 138 | config PTE_64BIT |
| 139 | bool |
| 140 | depends on 44x || E500 || PPC_86xx |
| 141 | default y if PHYS_64BIT |
| 142 | |
| 143 | config PHYS_64BIT |
| 144 | bool 'Large physical address support' if E500 || PPC_86xx |
| 145 | depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx |
| 146 | ---help--- |
| 147 | This option enables kernel support for larger than 32-bit physical |
| 148 | addresses. This feature may not be available on all cores. |
| 149 | |
| 150 | If you have more than 3.5GB of RAM or so, you also need to enable |
| 151 | SWIOTLB under Kernel Options for this to work. The actual number |
| 152 | is platform-dependent. |
| 153 | |
| 154 | If in doubt, say N here. |
| 155 | |
| 156 | config ALTIVEC |
| 157 | bool "AltiVec Support" |
| 158 | depends on 6xx || POWER4 |
| 159 | ---help--- |
| 160 | This option enables kernel support for the Altivec extensions to the |
| 161 | PowerPC processor. The kernel currently supports saving and restoring |
| 162 | altivec registers, and turning on the 'altivec enable' bit so user |
| 163 | processes can execute altivec instructions. |
| 164 | |
| 165 | This option is only usefully if you have a processor that supports |
| 166 | altivec (G4, otherwise known as 74xx series), but does not have |
| 167 | any affect on a non-altivec cpu (it does, however add code to the |
| 168 | kernel). |
| 169 | |
| 170 | If in doubt, say Y here. |
| 171 | |
| 172 | config VSX |
| 173 | bool "VSX Support" |
| 174 | depends on POWER4 && ALTIVEC && PPC_FPU |
| 175 | ---help--- |
| 176 | |
| 177 | This option enables kernel support for the Vector Scaler extensions |
| 178 | to the PowerPC processor. The kernel currently supports saving and |
| 179 | restoring VSX registers, and turning on the 'VSX enable' bit so user |
| 180 | processes can execute VSX instructions. |
| 181 | |
| 182 | This option is only useful if you have a processor that supports |
| 183 | VSX (P7 and above), but does not have any affect on a non-VSX |
| 184 | CPUs (it does, however add code to the kernel). |
| 185 | |
| 186 | If in doubt, say Y here. |
| 187 | |
| 188 | config SPE |
| 189 | bool "SPE Support" |
| 190 | depends on E200 || (E500 && !PPC_E500MC) |
| 191 | default y |
| 192 | ---help--- |
| 193 | This option enables kernel support for the Signal Processing |
| 194 | Extensions (SPE) to the PowerPC processor. The kernel currently |
| 195 | supports saving and restoring SPE registers, and turning on the |
| 196 | 'spe enable' bit so user processes can execute SPE instructions. |
| 197 | |
| 198 | This option is only useful if you have a processor that supports |
| 199 | SPE (e500, otherwise known as 85xx series), but does not have any |
| 200 | effect on a non-spe cpu (it does, however add code to the kernel). |
| 201 | |
| 202 | If in doubt, say Y here. |
| 203 | |
| 204 | config PPC_STD_MMU |
| 205 | bool |
| 206 | depends on 6xx || PPC64 |
| 207 | default y |
| 208 | |
| 209 | config PPC_STD_MMU_32 |
| 210 | def_bool y |
| 211 | depends on PPC_STD_MMU && PPC32 |
| 212 | |
| 213 | config PPC_STD_MMU_64 |
| 214 | def_bool y |
| 215 | depends on PPC_STD_MMU && PPC64 |
| 216 | |
| 217 | config PPC_MMU_NOHASH |
| 218 | def_bool y |
| 219 | depends on !PPC_STD_MMU |
| 220 | |
| 221 | config PPC_BOOK3E_MMU |
| 222 | def_bool y |
| 223 | depends on FSL_BOOKE |
| 224 | |
| 225 | config PPC_MM_SLICES |
| 226 | bool |
| 227 | default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) |
| 228 | default n |
| 229 | |
| 230 | config VIRT_CPU_ACCOUNTING |
| 231 | bool "Deterministic task and CPU time accounting" |
| 232 | depends on PPC64 |
| 233 | default y |
| 234 | help |
| 235 | Select this option to enable more accurate task and CPU time |
| 236 | accounting. This is done by reading a CPU counter on each |
| 237 | kernel entry and exit and on transitions within the kernel |
| 238 | between system, softirq and hardirq state, so there is a |
| 239 | small performance impact. This also enables accounting of |
| 240 | stolen time on logically-partitioned systems running on |
| 241 | IBM POWER5-based machines. |
| 242 | |
| 243 | If in doubt, say Y here. |
| 244 | |
| 245 | config SMP |
| 246 | depends on PPC_STD_MMU || FSL_BOOKE |
| 247 | bool "Symmetric multi-processing support" |
| 248 | ---help--- |
| 249 | This enables support for systems with more than one CPU. If you have |
| 250 | a system with only one CPU, say N. If you have a system with more |
| 251 | than one CPU, say Y. Note that the kernel does not currently |
| 252 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors |
| 253 | since they have inadequate hardware support for multiprocessor |
| 254 | operation. |
| 255 | |
| 256 | If you say N here, the kernel will run on single and multiprocessor |
| 257 | machines, but will use only one CPU of a multiprocessor machine. If |
| 258 | you say Y here, the kernel will run on single-processor machines. |
| 259 | On a single-processor machine, the kernel will run faster if you say |
| 260 | N here. |
| 261 | |
| 262 | If you don't know what to do here, say N. |
| 263 | |
| 264 | config NR_CPUS |
| 265 | int "Maximum number of CPUs (2-1024)" |
| 266 | range 2 1024 |
| 267 | depends on SMP |
| 268 | default "32" if PPC64 |
| 269 | default "4" |
| 270 | |
| 271 | config NOT_COHERENT_CACHE |
| 272 | bool |
| 273 | depends on 4xx || 8xx || E200 || PPC_MPC512x |
| 274 | default y |
| 275 | |
| 276 | config CHECK_CACHE_COHERENCY |
| 277 | bool |
| 278 | |
| 279 | endmenu |