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Arnd Bergmanna0ae9c72007-06-13 02:30:17 +10001config 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
8menu "Processor support"
9choice
10 prompt "Processor Type"
11 depends on PPC32
12 default 6xx
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
Arnd Bergmannb9fd3052007-06-18 01:06:52 +020024config 6xx
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
60config POWER4_ONLY
61 bool "Optimize for POWER4"
62 depends on PPC64
63 default n
64 ---help---
65 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
66 The resulting binary will not work on POWER3 or RS64 processors
67 when compiled with binutils 2.15 or later.
68
69config POWER3
70 bool
71 depends on PPC64
72 default y if !POWER4_ONLY
73
74config POWER4
75 depends on PPC64
76 def_bool y
77
Arnd Bergmann3164ccc2007-09-15 10:21:57 +100078config TUNE_CELL
79 bool "Optimize for Cell Broadband Engine"
80 depends on PPC64
81 help
82 Cause the compiler to optimize for the PPE of the Cell Broadband
83 Engine. This will make the code run considerably faster on Cell
84 but somewhat slower on other machines. This option only changes
85 the scheduling of instructions, not the selection of instructions
86 itself, so the resulting kernel will keep running on all other
87 machines. When building a kernel that is supposed to run only
88 on Cell, you should also select the POWER4_ONLY option.
89
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100090# this is temp to handle compat with arch=ppc
91config 8xx
92 bool
93
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100094config E500
Andy Fleming39aef682008-02-04 18:27:55 -060095 select FSL_EMB_PERFMON
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +100096 bool
97
Kumar Gala3dfa8772008-06-16 09:41:32 -050098config PPC_E500MC
99 bool "e500mc Support"
100 select PPC_FPU
101 depends on E500
102
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000103config PPC_FPU
104 bool
105 default y if PPC64
106
107config 4xx
108 bool
109 depends on 40x || 44x
110 default y
111
112config BOOKE
113 bool
114 depends on E200 || E500 || 44x
115 default y
116
117config FSL_BOOKE
118 bool
119 depends on E200 || E500
120 default y
121
Andy Fleming39aef682008-02-04 18:27:55 -0600122config FSL_EMB_PERFMON
Andy Flemingad562c72008-03-07 17:59:03 -0600123 bool "Freescale Embedded Perfmon"
124 depends on E500 || PPC_83xx
125 help
126 This is the Performance Monitor support found on the e500 core
127 and some e300 cores (c3 and c4). Select this only if your
128 core supports the Embedded Performance Monitor APU
Andy Fleming39aef682008-02-04 18:27:55 -0600129
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000130config PTE_64BIT
131 bool
Becky Bruce4ee70842008-09-24 11:01:24 -0500132 depends on 44x || E500 || PPC_86xx
133 default y if PHYS_64BIT
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000134
135config PHYS_64BIT
Becky Bruce4ee70842008-09-24 11:01:24 -0500136 bool 'Large physical address support' if E500 || PPC_86xx
137 depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000138 ---help---
139 This option enables kernel support for larger than 32-bit physical
Becky Bruce4ee70842008-09-24 11:01:24 -0500140 addresses. This feature may not be available on all cores.
141
142 If you have more than 3.5GB of RAM or so, you also need to enable
143 SWIOTLB under Kernel Options for this to work. The actual number
144 is platform-dependent.
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000145
146 If in doubt, say N here.
147
148config ALTIVEC
149 bool "AltiVec Support"
150 depends on CLASSIC32 || POWER4
151 ---help---
152 This option enables kernel support for the Altivec extensions to the
153 PowerPC processor. The kernel currently supports saving and restoring
154 altivec registers, and turning on the 'altivec enable' bit so user
155 processes can execute altivec instructions.
156
157 This option is only usefully if you have a processor that supports
158 altivec (G4, otherwise known as 74xx series), but does not have
159 any affect on a non-altivec cpu (it does, however add code to the
160 kernel).
161
162 If in doubt, say Y here.
163
Michael Neuling96d5b522008-06-25 14:07:18 +1000164config VSX
165 bool "VSX Support"
166 depends on POWER4 && ALTIVEC && PPC_FPU
167 ---help---
168
169 This option enables kernel support for the Vector Scaler extensions
170 to the PowerPC processor. The kernel currently supports saving and
171 restoring VSX registers, and turning on the 'VSX enable' bit so user
172 processes can execute VSX instructions.
173
174 This option is only useful if you have a processor that supports
175 VSX (P7 and above), but does not have any affect on a non-VSX
176 CPUs (it does, however add code to the kernel).
177
178 If in doubt, say Y here.
179
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000180config SPE
181 bool "SPE Support"
Kumar Gala3dfa8772008-06-16 09:41:32 -0500182 depends on E200 || (E500 && !PPC_E500MC)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000183 default y
184 ---help---
185 This option enables kernel support for the Signal Processing
186 Extensions (SPE) to the PowerPC processor. The kernel currently
187 supports saving and restoring SPE registers, and turning on the
188 'spe enable' bit so user processes can execute SPE instructions.
189
190 This option is only useful if you have a processor that supports
191 SPE (e500, otherwise known as 85xx series), but does not have any
192 effect on a non-spe cpu (it does, however add code to the kernel).
193
194 If in doubt, say Y here.
195
196config PPC_STD_MMU
197 bool
Benjamin Herrenschmidt5e696612008-12-18 19:13:24 +0000198 depends on 6xx || PPC64
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000199 default y
200
201config PPC_STD_MMU_32
202 def_bool y
203 depends on PPC_STD_MMU && PPC32
204
Benjamin Herrenschmidt5e696612008-12-18 19:13:24 +0000205config PPC_STD_MMU_64
206 def_bool y
207 depends on PPC_STD_MMU && PPC64
208
209config PPC_MMU_NOHASH
210 def_bool y
211 depends on !PPC_STD_MMU
212
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000213config PPC_MM_SLICES
214 bool
Ilya Yanokca9153a2008-12-11 04:55:41 +0300215 default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000216 default n
217
218config VIRT_CPU_ACCOUNTING
219 bool "Deterministic task and CPU time accounting"
220 depends on PPC64
221 default y
222 help
223 Select this option to enable more accurate task and CPU time
224 accounting. This is done by reading a CPU counter on each
225 kernel entry and exit and on transitions within the kernel
226 between system, softirq and hardirq state, so there is a
227 small performance impact. This also enables accounting of
228 stolen time on logically-partitioned systems running on
229 IBM POWER5-based machines.
230
231 If in doubt, say Y here.
232
233config SMP
234 depends on PPC_STD_MMU
235 bool "Symmetric multi-processing support"
236 ---help---
237 This enables support for systems with more than one CPU. If you have
238 a system with only one CPU, say N. If you have a system with more
239 than one CPU, say Y. Note that the kernel does not currently
240 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
241 since they have inadequate hardware support for multiprocessor
242 operation.
243
244 If you say N here, the kernel will run on single and multiprocessor
245 machines, but will use only one CPU of a multiprocessor machine. If
246 you say Y here, the kernel will run on single-processor machines.
247 On a single-processor machine, the kernel will run faster if you say
248 N here.
249
250 If you don't know what to do here, say N.
251
252config NR_CPUS
Tony Breeds90035fe2008-04-24 13:43:49 +1000253 int "Maximum number of CPUs (2-1024)"
254 range 2 1024
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000255 depends on SMP
256 default "32" if PPC64
257 default "4"
258
259config NOT_COHERENT_CACHE
260 bool
John Rigbye177edc2008-01-29 04:28:53 +1100261 depends on 4xx || 8xx || E200 || PPC_MPC512x
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000262 default y
263
Robert P. J. Dayf8eb77d2007-07-18 08:21:29 +1000264config CHECK_CACHE_COHERENCY
Arnd Bergmanna0ae9c72007-06-13 02:30:17 +1000265 bool
266
267endmenu