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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
Paul Mackerras73259272009-06-17 21:53:51 +100078 select PPC_HAVE_PMU_SUPPORT
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +000079
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100080config POWER3
81 bool
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000082 depends on PPC64 && PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100083 default y if !POWER4_ONLY
84
85config POWER4
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000086 depends on PPC64 && PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100087 def_bool y
88
Arnd Bergmann3164ccc2007-09-15 10:21:57 +100089config TUNE_CELL
90 bool "Optimize for Cell Broadband Engine"
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +000091 depends on PPC64 && PPC_BOOK3S
Arnd Bergmann3164ccc2007-09-15 10:21:57 +100092 help
93 Cause the compiler to optimize for the PPE of the Cell Broadband
94 Engine. This will make the code run considerably faster on Cell
95 but somewhat slower on other machines. This option only changes
96 the scheduling of instructions, not the selection of instructions
97 itself, so the resulting kernel will keep running on all other
98 machines. When building a kernel that is supposed to run only
99 on Cell, you should also select the POWER4_ONLY option.
100
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000101# this is temp to handle compat with arch=ppc
102config 8xx
103 bool
104
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000105config E500
Andy Fleming39aef682008-02-04 18:27:55 -0600106 select FSL_EMB_PERFMON
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000107 bool
108
Kumar Gala3dfa8772008-06-16 09:41:32 -0500109config PPC_E500MC
110 bool "e500mc Support"
111 select PPC_FPU
112 depends on E500
113
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000114config PPC_FPU
115 bool
116 default y if PPC64
117
118config 4xx
119 bool
120 depends on 40x || 44x
121 default y
122
123config BOOKE
124 bool
125 depends on E200 || E500 || 44x
126 default y
127
128config FSL_BOOKE
129 bool
130 depends on E200 || E500
131 default y
132
Andy Fleming39aef682008-02-04 18:27:55 -0600133config FSL_EMB_PERFMON
Andy Flemingad562c72008-03-07 17:59:03 -0600134 bool "Freescale Embedded Perfmon"
135 depends on E500 || PPC_83xx
136 help
137 This is the Performance Monitor support found on the e500 core
138 and some e300 cores (c3 and c4). Select this only if your
139 core supports the Embedded Performance Monitor APU
Andy Fleming39aef682008-02-04 18:27:55 -0600140
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000141config PTE_64BIT
142 bool
Becky Bruce4ee70842008-09-24 11:01:24 -0500143 depends on 44x || E500 || PPC_86xx
144 default y if PHYS_64BIT
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000145
146config PHYS_64BIT
Becky Bruce4ee70842008-09-24 11:01:24 -0500147 bool 'Large physical address support' if E500 || PPC_86xx
148 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000149 ---help---
150 This option enables kernel support for larger than 32-bit physical
Becky Bruce4ee70842008-09-24 11:01:24 -0500151 addresses. This feature may not be available on all cores.
152
153 If you have more than 3.5GB of RAM or so, you also need to enable
154 SWIOTLB under Kernel Options for this to work. The actual number
155 is platform-dependent.
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000156
157 If in doubt, say N here.
158
159config ALTIVEC
160 bool "AltiVec Support"
Benjamin Herrenschmidt28794d32009-03-10 17:53:27 +0000161 depends on 6xx || POWER4
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000162 ---help---
163 This option enables kernel support for the Altivec extensions to the
164 PowerPC processor. The kernel currently supports saving and restoring
165 altivec registers, and turning on the 'altivec enable' bit so user
166 processes can execute altivec instructions.
167
168 This option is only usefully if you have a processor that supports
169 altivec (G4, otherwise known as 74xx series), but does not have
170 any affect on a non-altivec cpu (it does, however add code to the
171 kernel).
172
173 If in doubt, say Y here.
174
Michael Neuling96d5b522008-06-25 14:07:18 +1000175config VSX
176 bool "VSX Support"
177 depends on POWER4 && ALTIVEC && PPC_FPU
178 ---help---
179
180 This option enables kernel support for the Vector Scaler extensions
181 to the PowerPC processor. The kernel currently supports saving and
182 restoring VSX registers, and turning on the 'VSX enable' bit so user
183 processes can execute VSX instructions.
184
185 This option is only useful if you have a processor that supports
186 VSX (P7 and above), but does not have any affect on a non-VSX
187 CPUs (it does, however add code to the kernel).
188
189 If in doubt, say Y here.
190
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000191config SPE
192 bool "SPE Support"
Kumar Gala3dfa8772008-06-16 09:41:32 -0500193 depends on E200 || (E500 && !PPC_E500MC)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000194 default y
195 ---help---
196 This option enables kernel support for the Signal Processing
197 Extensions (SPE) to the PowerPC processor. The kernel currently
198 supports saving and restoring SPE registers, and turning on the
199 'spe enable' bit so user processes can execute SPE instructions.
200
201 This option is only useful if you have a processor that supports
202 SPE (e500, otherwise known as 85xx series), but does not have any
203 effect on a non-spe cpu (it does, however add code to the kernel).
204
205 If in doubt, say Y here.
206
207config PPC_STD_MMU
Benjamin Herrenschmidt5b7c3c92009-06-02 21:17:37 +0000208 def_bool y
209 depends on PPC_BOOK3S
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000210
211config PPC_STD_MMU_32
212 def_bool y
213 depends on PPC_STD_MMU && PPC32
214
Benjamin Herrenschmidt5e696612008-12-18 19:13:24 +0000215config PPC_STD_MMU_64
216 def_bool y
217 depends on PPC_STD_MMU && PPC64
218
219config PPC_MMU_NOHASH
220 def_bool y
221 depends on !PPC_STD_MMU
222
Kumar Gala70fe3af2009-02-12 16:12:40 -0600223config PPC_BOOK3E_MMU
224 def_bool y
225 depends on FSL_BOOKE
226
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000227config PPC_MM_SLICES
228 bool
Ilya Yanokca9153a2008-12-11 04:55:41 +0300229 default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000230 default n
231
232config VIRT_CPU_ACCOUNTING
233 bool "Deterministic task and CPU time accounting"
234 depends on PPC64
235 default y
236 help
237 Select this option to enable more accurate task and CPU time
238 accounting. This is done by reading a CPU counter on each
239 kernel entry and exit and on transitions within the kernel
240 between system, softirq and hardirq state, so there is a
241 small performance impact. This also enables accounting of
242 stolen time on logically-partitioned systems running on
243 IBM POWER5-based machines.
244
245 If in doubt, say Y here.
246
Paul Mackerras105988c2009-06-17 21:50:04 +1000247config PPC_HAVE_PMU_SUPPORT
248 bool
249
250config PPC_PERF_CTRS
251 def_bool y
252 depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT
253 help
254 This enables the powerpc-specific perf_counter back-end.
255
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000256config SMP
Kumar Gala00c4b952008-12-01 14:40:46 -0600257 depends on PPC_STD_MMU || FSL_BOOKE
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000258 bool "Symmetric multi-processing support"
259 ---help---
260 This enables support for systems with more than one CPU. If you have
261 a system with only one CPU, say N. If you have a system with more
262 than one CPU, say Y. Note that the kernel does not currently
263 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
264 since they have inadequate hardware support for multiprocessor
265 operation.
266
267 If you say N here, the kernel will run on single and multiprocessor
268 machines, but will use only one CPU of a multiprocessor machine. If
269 you say Y here, the kernel will run on single-processor machines.
270 On a single-processor machine, the kernel will run faster if you say
271 N here.
272
273 If you don't know what to do here, say N.
274
275config NR_CPUS
Michael Neuling2d8ae632009-05-17 15:13:16 +0000276 int "Maximum number of CPUs (2-8192)"
277 range 2 8192
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000278 depends on SMP
279 default "32" if PPC64
280 default "4"
281
282config NOT_COHERENT_CACHE
283 bool
John Rigbye177edc2008-01-29 04:28:53 +1100284 depends on 4xx || 8xx || E200 || PPC_MPC512x
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000285 default y
286
Robert P. J. Dayf8eb77d2007-07-18 08:21:29 +1000287config CHECK_CACHE_COHERENCY
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000288 bool
289
290endmenu