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
74 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if PPC_64K_PAGES
77 bool "Embedded processors"
78 select PPC_FPU # Make it a choice ?
79 select PPC_SMP_MUXED_IPI
85 prompt "CPU selection"
89 This will create a kernel which is optimised for a particular CPU.
90 The resulting kernel may not run on other CPUs, so use this with care.
92 If unsure, select Generic.
96 depends on !CPU_LITTLE_ENDIAN
99 bool "Cell Broadband Engine"
100 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
104 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
108 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
112 depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
116 depends on PPC_BOOK3S_64
119 bool "Freescale e5500"
123 bool "Freescale e6500"
130 depends on PPC_BOOK3S_32 || PPC_BOOK3S_64
134 depends on PPC_BOOK3E_64
138 depends on PPC32 && PPC_BOOK3S
139 select PPC_HAVE_PMU_SUPPORT
142 depends on PPC64 && PPC_BOOK3S
146 depends on PPC64 && PPC_BOOK3S
151 depends on PPC_BOOK3E_64
154 bool "Optimize for Cell Broadband Engine"
155 depends on PPC64 && PPC_BOOK3S
157 Cause the compiler to optimize for the PPE of the Cell Broadband
158 Engine. This will make the code run considerably faster on Cell
159 but somewhat slower on other machines. This option only changes
160 the scheduling of instructions, not the selection of instructions
161 itself, so the resulting kernel will keep running on all other
164 # this is temp to handle compat with arch=ppc
169 select FSL_EMB_PERFMON
170 select PPC_FSL_BOOK3E
174 bool "e500mc Support"
179 This must be enabled for running on e500mc (and derivatives
180 such as e5500/e6500), and must be disabled for running on
187 config FSL_EMB_PERFMON
188 bool "Freescale Embedded Perfmon"
189 depends on E500 || PPC_83xx
191 This is the Performance Monitor support found on the e500 core
192 and some e300 cores (c3 and c4). Select this only if your
193 core supports the Embedded Performance Monitor APU
195 config FSL_EMB_PERF_EVENT
197 depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
200 config FSL_EMB_PERF_EVENT_E500
202 depends on FSL_EMB_PERF_EVENT && E500
207 depends on 40x || 44x
212 depends on E200 || E500 || 44x || PPC_BOOK3E
217 depends on (E200 || E500) && PPC32
220 # this is for common code between PPC32 & PPC64 FSL BOOKE
221 config PPC_FSL_BOOK3E
223 select FSL_EMB_PERFMON
224 select PPC_SMP_MUXED_IPI
225 select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64
227 default y if FSL_BOOKE
231 depends on 44x || E500 || PPC_86xx
232 default y if PHYS_64BIT
235 bool 'Large physical address support' if E500 || PPC_86xx
236 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
238 This option enables kernel support for larger than 32-bit physical
239 addresses. This feature may not be available on all cores.
241 If you have more than 3.5GB of RAM or so, you also need to enable
242 SWIOTLB under Kernel Options for this to work. The actual number
243 is platform-dependent.
245 If in doubt, say N here.
248 bool "AltiVec Support"
249 depends on 6xx || POWER4 || (PPC_E500MC && PPC64)
251 This option enables kernel support for the Altivec extensions to the
252 PowerPC processor. The kernel currently supports saving and restoring
253 altivec registers, and turning on the 'altivec enable' bit so user
254 processes can execute altivec instructions.
256 This option is only usefully if you have a processor that supports
257 altivec (G4, otherwise known as 74xx series), but does not have
258 any affect on a non-altivec cpu (it does, however add code to the
261 If in doubt, say Y here.
265 depends on POWER4 && ALTIVEC && PPC_FPU
268 This option enables kernel support for the Vector Scaler extensions
269 to the PowerPC processor. The kernel currently supports saving and
270 restoring VSX registers, and turning on the 'VSX enable' bit so user
271 processes can execute VSX instructions.
273 This option is only useful if you have a processor that supports
274 VSX (P7 and above), but does not have any affect on a non-VSX
275 CPUs (it does, however add code to the kernel).
277 If in doubt, say Y here.
280 bool "Support for PowerPC icswx coprocessor instruction"
281 depends on POWER4 || PPC_A2
285 This option enables kernel support for the PowerPC Initiate
286 Coprocessor Store Word (icswx) coprocessor instruction on POWER7
289 This option is only useful if you have a processor that supports
290 the icswx coprocessor instruction. It does not have any effect
291 on processors without the icswx coprocessor instruction.
293 This option slightly increases kernel memory usage.
295 If in doubt, say N here.
298 bool "icswx requires direct PID management"
299 depends on PPC_ICSWX && POWER4
302 The PID register in server is used explicitly for ICSWX. In
303 embedded systems PID management is done by the system.
305 config PPC_ICSWX_USE_SIGILL
306 bool "Should a bad CT cause a SIGILL?"
310 Should a bad CT used for "non-record form ICSWX" cause an
311 illegal instruction signal or should it be silent as
314 If in doubt, say N here.
318 depends on E200 || (E500 && !PPC_E500MC)
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.
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).
330 If in doubt, say Y here.
334 depends on PPC_BOOK3S
336 config PPC_STD_MMU_32
338 depends on PPC_STD_MMU && PPC32
340 config PPC_STD_MMU_64
342 depends on PPC_STD_MMU && PPC64
344 config PPC_MMU_NOHASH
346 depends on !PPC_STD_MMU
348 config PPC_BOOK3E_MMU
350 depends on FSL_BOOKE || PPC_BOOK3E
354 default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES)
357 config PPC_HAVE_PMU_SUPPORT
362 depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
364 This enables the powerpc-specific perf_event back-end.
367 depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x
368 bool "Symmetric multi-processing support"
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
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
383 If you don't know what to do here, say N.
386 int "Maximum number of CPUs (2-8192)"
389 default "32" if PPC64
392 config NOT_COHERENT_CACHE
394 depends on 4xx || 8xx || E200 || PPC_MPC512x || GAMECUBE_COMMON
398 config CHECK_CACHE_COHERENCY
407 config CPU_LITTLE_ENDIAN
408 bool "Build little endian kernel"
411 This option selects whether a big endian or little endian kernel will
414 Note that if cross compiling a little endian kernel,
415 CROSS_COMPILE must point to a toolchain capable of targeting
416 little endian powerpc.