4 select HAVE_VIRT_CPU_ACCOUNTING
6 This option selects whether a 32-bit or a 64-bit kernel
9 menu "Processor support"
11 prompt "Processor Type"
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
22 If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
25 bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
46 bool "AMCC 44x, 46x or 47x"
59 prompt "Processor Type"
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, ...)
66 The other are the "embedded" processors compliant with the
67 "Book 3E" variant of the architecture
70 bool "Server processors"
72 select PPC_HAVE_PMU_SUPPORT
73 select SYS_SUPPORTS_HUGETLBFS
76 bool "Embedded processors"
77 select PPC_FPU # Make it a choice ?
78 select PPC_SMP_MUXED_IPI
84 prompt "CPU selection"
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.
91 If unsure, select Generic.
97 bool "Cell Broadband Engine"
115 depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
119 depends on PPC_BOOK3E_64
123 depends on PPC32 && PPC_BOOK3S
124 select PPC_HAVE_PMU_SUPPORT
128 depends on PPC64 && PPC_BOOK3S
129 default y if !POWER4_ONLY
132 depends on PPC64 && PPC_BOOK3S
137 depends on PPC_BOOK3E_64
140 bool "Optimize for Cell Broadband Engine"
141 depends on PPC64 && PPC_BOOK3S
143 Cause the compiler to optimize for the PPE of the Cell Broadband
144 Engine. This will make the code run considerably faster on Cell
145 but somewhat slower on other machines. This option only changes
146 the scheduling of instructions, not the selection of instructions
147 itself, so the resulting kernel will keep running on all other
148 machines. When building a kernel that is supposed to run only
149 on Cell, you should also select the POWER4_ONLY option.
151 # this is temp to handle compat with arch=ppc
156 select FSL_EMB_PERFMON
157 select PPC_FSL_BOOK3E
161 bool "e500mc Support"
165 This must be enabled for running on e500mc (and derivatives
166 such as e5500/e6500), and must be disabled for running on
173 config FSL_EMB_PERFMON
174 bool "Freescale Embedded Perfmon"
175 depends on E500 || PPC_83xx
177 This is the Performance Monitor support found on the e500 core
178 and some e300 cores (c3 and c4). Select this only if your
179 core supports the Embedded Performance Monitor APU
181 config FSL_EMB_PERF_EVENT
183 depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
186 config FSL_EMB_PERF_EVENT_E500
188 depends on FSL_EMB_PERF_EVENT && E500
193 depends on 40x || 44x
198 depends on E200 || E500 || 44x || PPC_BOOK3E
203 depends on (E200 || E500) && PPC32
206 # this is for common code between PPC32 & PPC64 FSL BOOKE
207 config PPC_FSL_BOOK3E
209 select FSL_EMB_PERFMON
210 select PPC_SMP_MUXED_IPI
211 select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
213 default y if FSL_BOOKE
217 depends on 44x || E500 || PPC_86xx
218 default y if PHYS_64BIT
221 bool 'Large physical address support' if E500 || PPC_86xx
222 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
224 This option enables kernel support for larger than 32-bit physical
225 addresses. This feature may not be available on all cores.
227 If you have more than 3.5GB of RAM or so, you also need to enable
228 SWIOTLB under Kernel Options for this to work. The actual number
229 is platform-dependent.
231 If in doubt, say N here.
234 bool "AltiVec Support"
235 depends on 6xx || POWER4
237 This option enables kernel support for the Altivec extensions to the
238 PowerPC processor. The kernel currently supports saving and restoring
239 altivec registers, and turning on the 'altivec enable' bit so user
240 processes can execute altivec instructions.
242 This option is only usefully if you have a processor that supports
243 altivec (G4, otherwise known as 74xx series), but does not have
244 any affect on a non-altivec cpu (it does, however add code to the
247 If in doubt, say Y here.
251 depends on POWER4 && ALTIVEC && PPC_FPU
254 This option enables kernel support for the Vector Scaler extensions
255 to the PowerPC processor. The kernel currently supports saving and
256 restoring VSX registers, and turning on the 'VSX enable' bit so user
257 processes can execute VSX instructions.
259 This option is only useful if you have a processor that supports
260 VSX (P7 and above), but does not have any affect on a non-VSX
261 CPUs (it does, however add code to the kernel).
263 If in doubt, say Y here.
266 bool "Support for PowerPC icswx coprocessor instruction"
267 depends on POWER4 || PPC_A2
271 This option enables kernel support for the PowerPC Initiate
272 Coprocessor Store Word (icswx) coprocessor instruction on POWER7
275 This option is only useful if you have a processor that supports
276 the icswx coprocessor instruction. It does not have any effect
277 on processors without the icswx coprocessor instruction.
279 This option slightly increases kernel memory usage.
281 If in doubt, say N here.
284 bool "icswx requires direct PID management"
285 depends on PPC_ICSWX && POWER4
288 The PID register in server is used explicitly for ICSWX. In
289 embedded systems PID management is done by the system.
291 config PPC_ICSWX_USE_SIGILL
292 bool "Should a bad CT cause a SIGILL?"
296 Should a bad CT used for "non-record form ICSWX" cause an
297 illegal instruction signal or should it be silent as
300 If in doubt, say N here.
304 depends on E200 || (E500 && !PPC_E500MC)
307 This option enables kernel support for the Signal Processing
308 Extensions (SPE) to the PowerPC processor. The kernel currently
309 supports saving and restoring SPE registers, and turning on the
310 'spe enable' bit so user processes can execute SPE instructions.
312 This option is only useful if you have a processor that supports
313 SPE (e500, otherwise known as 85xx series), but does not have any
314 effect on a non-spe cpu (it does, however add code to the kernel).
316 If in doubt, say Y here.
320 depends on PPC_BOOK3S
322 config PPC_STD_MMU_32
324 depends on PPC_STD_MMU && PPC32
326 config PPC_STD_MMU_64
328 depends on PPC_STD_MMU && PPC64
330 config PPC_MMU_NOHASH
332 depends on !PPC_STD_MMU
334 config PPC_BOOK3E_MMU
336 depends on FSL_BOOKE || PPC_BOOK3E
340 default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
343 config PPC_HAVE_PMU_SUPPORT
348 depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
350 This enables the powerpc-specific perf_event back-end.
353 depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
354 bool "Symmetric multi-processing support"
356 This enables support for systems with more than one CPU. If you have
357 a system with only one CPU, say N. If you have a system with more
358 than one CPU, say Y. Note that the kernel does not currently
359 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
360 since they have inadequate hardware support for multiprocessor
363 If you say N here, the kernel will run on single and multiprocessor
364 machines, but will use only one CPU of a multiprocessor machine. If
365 you say Y here, the kernel will run on single-processor machines.
366 On a single-processor machine, the kernel will run faster if you say
369 If you don't know what to do here, say N.
372 int "Maximum number of CPUs (2-8192)"
375 default "32" if PPC64
378 config NOT_COHERENT_CACHE
380 depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
384 config CHECK_CACHE_COHERENCY