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Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10001config PPC64
2 bool "64-bit kernel"
3 default n
Paul Mackerras105988c2009-06-17 21:50:04 +10004 select PPC_HAVE_PMU_SUPPORT
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10005 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
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100013 help
Arnd Bergmannb9fd3052007-06-18 01:06:52 +020014 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
John Rigbye177edc2008-01-29 04:28:53 +110017 embedded 512x/52xx/82xx/83xx/86xx counterparts.
Arnd Bergmannb9fd3052007-06-18 01:06:52 +020018 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.
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100021
Arnd Bergmannb9fd3052007-06-18 01:06:52 +020022 If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100023
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +000024config PPC_BOOK3S
John Rigbye177edc2008-01-29 04:28:53 +110025 bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100026 select PPC_FPU
27
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100028config PPC_85xx
29 bool "Freescale 85xx"
30 select E500
31 select FSL_SOC
Kumar Gala3a831562008-01-28 10:24:30 -060032 select MPC85xx
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100033
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100034config PPC_8xx
35 bool "Freescale 8xx"
36 select FSL_SOC
37 select 8xx
Sylvain Munaut1088a202007-09-16 20:53:25 +100038 select PPC_LIB_RHEAP
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100039
40config 40x
41 bool "AMCC 40x"
42 select PPC_DCR_NATIVE
Benjamin Herrenschmidt9dae8af2007-12-21 15:39:26 +110043 select PPC_UDBG_16550
Stefan Roese93173ce2008-03-28 01:43:31 +110044 select 4xx_SOC
John Rigbyb5005632008-06-26 11:07:56 -060045 select PPC_PCI_CHOICE
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100046
47config 44x
48 bool "AMCC 44x"
49 select PPC_DCR_NATIVE
Valentine Barshak1d5499b2007-10-18 22:55:13 +100050 select PPC_UDBG_16550
Stefan Roese93173ce2008-03-28 01:43:31 +110051 select 4xx_SOC
John Rigbyb5005632008-06-26 11:07:56 -060052 select PPC_PCI_CHOICE
Becky Bruce4ee70842008-09-24 11:01:24 -050053 select PHYS_64BIT
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100054
55config E200
56 bool "Freescale e200"
57
58endchoice
59
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000060config PPC_BOOK3S
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +000061 default y
62 depends on PPC64
63 select PPC_FPU
64
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000065
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100066config POWER4_ONLY
67 bool "Optimize for POWER4"
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000068 depends on PPC64 && PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100069 default n
70 ---help---
71 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
72 The resulting binary will not work on POWER3 or RS64 processors
73 when compiled with binutils 2.15 or later.
74
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +000075config 6xx
76 def_bool y
77 depends on PPC32 && PPC_BOOK3S
78
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100079config POWER3
80 bool
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000081 depends on PPC64 && PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100082 default y if !POWER4_ONLY
83
84config POWER4
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000085 depends on PPC64 && PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100086 def_bool y
87
Arnd Bergmann3164ccc2007-09-15 10:21:57 +100088config TUNE_CELL
89 bool "Optimize for Cell Broadband Engine"
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000090 depends on PPC64 && PPC_BOOK3S
Arnd Bergmann3164ccc2007-09-15 10:21:57 +100091 help
92 Cause the compiler to optimize for the PPE of the Cell Broadband
93 Engine. This will make the code run considerably faster on Cell
94 but somewhat slower on other machines. This option only changes
95 the scheduling of instructions, not the selection of instructions
96 itself, so the resulting kernel will keep running on all other
97 machines. When building a kernel that is supposed to run only
98 on Cell, you should also select the POWER4_ONLY option.
99
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000100# this is temp to handle compat with arch=ppc
101config 8xx
102 bool
103
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000104config E500
Andy Fleming39aef682008-02-04 18:27:55 -0600105 select FSL_EMB_PERFMON
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000106 bool
107
Kumar Gala3dfa8772008-06-16 09:41:32 -0500108config PPC_E500MC
109 bool "e500mc Support"
110 select PPC_FPU
111 depends on E500
112
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000113config PPC_FPU
114 bool
115 default y if PPC64
116
117config 4xx
118 bool
119 depends on 40x || 44x
120 default y
121
122config BOOKE
123 bool
124 depends on E200 || E500 || 44x
125 default y
126
127config FSL_BOOKE
128 bool
129 depends on E200 || E500
130 default y
131
Andy Fleming39aef682008-02-04 18:27:55 -0600132config FSL_EMB_PERFMON
Andy Flemingad562c72008-03-07 17:59:03 -0600133 bool "Freescale Embedded Perfmon"
134 depends on E500 || PPC_83xx
135 help
136 This is the Performance Monitor support found on the e500 core
137 and some e300 cores (c3 and c4). Select this only if your
138 core supports the Embedded Performance Monitor APU
Andy Fleming39aef682008-02-04 18:27:55 -0600139
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000140config PTE_64BIT
141 bool
Becky Bruce4ee70842008-09-24 11:01:24 -0500142 depends on 44x || E500 || PPC_86xx
143 default y if PHYS_64BIT
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000144
145config PHYS_64BIT
Becky Bruce4ee70842008-09-24 11:01:24 -0500146 bool 'Large physical address support' if E500 || PPC_86xx
147 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000148 ---help---
149 This option enables kernel support for larger than 32-bit physical
Becky Bruce4ee70842008-09-24 11:01:24 -0500150 addresses. This feature may not be available on all cores.
151
152 If you have more than 3.5GB of RAM or so, you also need to enable
153 SWIOTLB under Kernel Options for this to work. The actual number
154 is platform-dependent.
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000155
156 If in doubt, say N here.
157
158config ALTIVEC
159 bool "AltiVec Support"
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +0000160 depends on 6xx || POWER4
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000161 ---help---
162 This option enables kernel support for the Altivec extensions to the
163 PowerPC processor. The kernel currently supports saving and restoring
164 altivec registers, and turning on the 'altivec enable' bit so user
165 processes can execute altivec instructions.
166
167 This option is only usefully if you have a processor that supports
168 altivec (G4, otherwise known as 74xx series), but does not have
169 any affect on a non-altivec cpu (it does, however add code to the
170 kernel).
171
172 If in doubt, say Y here.
173
Michael Neuling96d5b522008-06-25 14:07:18 +1000174config VSX
175 bool "VSX Support"
176 depends on POWER4 && ALTIVEC && PPC_FPU
177 ---help---
178
179 This option enables kernel support for the Vector Scaler extensions
180 to the PowerPC processor. The kernel currently supports saving and
181 restoring VSX registers, and turning on the 'VSX enable' bit so user
182 processes can execute VSX instructions.
183
184 This option is only useful if you have a processor that supports
185 VSX (P7 and above), but does not have any affect on a non-VSX
186 CPUs (it does, however add code to the kernel).
187
188 If in doubt, say Y here.
189
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000190config SPE
191 bool "SPE Support"
Kumar Gala3dfa8772008-06-16 09:41:32 -0500192 depends on E200 || (E500 && !PPC_E500MC)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000193 default y
194 ---help---
195 This option enables kernel support for the Signal Processing
196 Extensions (SPE) to the PowerPC processor. The kernel currently
197 supports saving and restoring SPE registers, and turning on the
198 'spe enable' bit so user processes can execute SPE instructions.
199
200 This option is only useful if you have a processor that supports
201 SPE (e500, otherwise known as 85xx series), but does not have any
202 effect on a non-spe cpu (it does, however add code to the kernel).
203
204 If in doubt, say Y here.
205
206config PPC_STD_MMU
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +0000207 def_bool y
208 depends on PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000209
210config PPC_STD_MMU_32
211 def_bool y
212 depends on PPC_STD_MMU && PPC32
213
Benjamin Herrenschmidt5e696612008-12-18 19:13:24 +0000214config PPC_STD_MMU_64
215 def_bool y
216 depends on PPC_STD_MMU && PPC64
217
218config PPC_MMU_NOHASH
219 def_bool y
220 depends on !PPC_STD_MMU
221
Kumar Gala70fe3af2009-02-12 16:12:40 -0600222config PPC_BOOK3E_MMU
223 def_bool y
224 depends on FSL_BOOKE
225
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000226config PPC_MM_SLICES
227 bool
Ilya Yanokca9153a2008-12-11 04:55:41 +0300228 default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000229 default n
230
231config VIRT_CPU_ACCOUNTING
232 bool "Deterministic task and CPU time accounting"
233 depends on PPC64
234 default y
235 help
236 Select this option to enable more accurate task and CPU time
237 accounting. This is done by reading a CPU counter on each
238 kernel entry and exit and on transitions within the kernel
239 between system, softirq and hardirq state, so there is a
240 small performance impact. This also enables accounting of
241 stolen time on logically-partitioned systems running on
242 IBM POWER5-based machines.
243
244 If in doubt, say Y here.
245
Paul Mackerras105988c2009-06-17 21:50:04 +1000246config PPC_HAVE_PMU_SUPPORT
247 bool
248
249config PPC_PERF_CTRS
250 def_bool y
251 depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT
252 help
253 This enables the powerpc-specific perf_counter back-end.
254
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000255config SMP
Kumar Gala00c4b952008-12-01 14:40:46 -0600256 depends on PPC_STD_MMU || FSL_BOOKE
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000257 bool "Symmetric multi-processing support"
258 ---help---
259 This enables support for systems with more than one CPU. If you have
260 a system with only one CPU, say N. If you have a system with more
261 than one CPU, say Y. Note that the kernel does not currently
262 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
263 since they have inadequate hardware support for multiprocessor
264 operation.
265
266 If you say N here, the kernel will run on single and multiprocessor
267 machines, but will use only one CPU of a multiprocessor machine. If
268 you say Y here, the kernel will run on single-processor machines.
269 On a single-processor machine, the kernel will run faster if you say
270 N here.
271
272 If you don't know what to do here, say N.
273
274config NR_CPUS
Michael Neuling2d8ae632009-05-17 15:13:16 +0000275 int "Maximum number of CPUs (2-8192)"
276 range 2 8192
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000277 depends on SMP
278 default "32" if PPC64
279 default "4"
280
281config NOT_COHERENT_CACHE
282 bool
John Rigbye177edc2008-01-29 04:28:53 +1100283 depends on 4xx || 8xx || E200 || PPC_MPC512x
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000284 default y
285
Robert P. J. Dayf8eb77d2007-07-18 08:21:29 +1000286config CHECK_CACHE_COHERENCY
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000287 bool
288
289endmenu