Commit | Line | Data |
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a0ae9c7c AB |
1 | config PPC64 |
2 | bool "64-bit kernel" | |
3 | default n | |
d662ed26 | 4 | select HAVE_PERF_COUNTERS |
a0ae9c7c AB |
5 | help |
6 | This option selects whether a 32-bit or a 64-bit kernel | |
7 | will be built. | |
8 | ||
9 | menu "Processor support" | |
10 | choice | |
11 | prompt "Processor Type" | |
12 | depends on PPC32 | |
a0ae9c7c | 13 | help |
b9fd305d AB |
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 | |
e177edcd | 17 | embedded 512x/52xx/82xx/83xx/86xx counterparts. |
b9fd305d AB |
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 | |
20 | with the others. | |
21 | ||
22 | If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx. | |
23 | ||
5b7c3c91 | 24 | config PPC_BOOK3S |
e177edcd | 25 | bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" |
a0ae9c7c AB |
26 | select PPC_FPU |
27 | ||
a0ae9c7c AB |
28 | config PPC_85xx |
29 | bool "Freescale 85xx" | |
30 | select E500 | |
31 | select FSL_SOC | |
3a83156b | 32 | select MPC85xx |
a0ae9c7c | 33 | |
a0ae9c7c AB |
34 | config PPC_8xx |
35 | bool "Freescale 8xx" | |
36 | select FSL_SOC | |
37 | select 8xx | |
1088a209 | 38 | select PPC_LIB_RHEAP |
a0ae9c7c AB |
39 | |
40 | config 40x | |
41 | bool "AMCC 40x" | |
42 | select PPC_DCR_NATIVE | |
9dae8afd | 43 | select PPC_UDBG_16550 |
93173ce2 | 44 | select 4xx_SOC |
b500563b | 45 | select PPC_PCI_CHOICE |
a0ae9c7c AB |
46 | |
47 | config 44x | |
48 | bool "AMCC 44x" | |
49 | select PPC_DCR_NATIVE | |
1d5499b5 | 50 | select PPC_UDBG_16550 |
93173ce2 | 51 | select 4xx_SOC |
b500563b | 52 | select PPC_PCI_CHOICE |
4ee7084e | 53 | select PHYS_64BIT |
a0ae9c7c AB |
54 | |
55 | config E200 | |
56 | bool "Freescale e200" | |
57 | ||
58 | endchoice | |
59 | ||
28794d34 | 60 | config PPC_BOOK3S |
5b7c3c91 BH |
61 | default y |
62 | depends on PPC64 | |
63 | select PPC_FPU | |
64 | ||
28794d34 | 65 | |
a0ae9c7c AB |
66 | config POWER4_ONLY |
67 | bool "Optimize for POWER4" | |
28794d34 | 68 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
69 | 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 | ||
5b7c3c91 BH |
75 | config 6xx |
76 | def_bool y | |
77 | depends on PPC32 && PPC_BOOK3S | |
78 | ||
a0ae9c7c AB |
79 | config POWER3 |
80 | bool | |
28794d34 | 81 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
82 | default y if !POWER4_ONLY |
83 | ||
84 | config POWER4 | |
28794d34 | 85 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
86 | def_bool y |
87 | ||
3164cccd AB |
88 | config TUNE_CELL |
89 | bool "Optimize for Cell Broadband Engine" | |
28794d34 | 90 | depends on PPC64 && PPC_BOOK3S |
3164cccd AB |
91 | 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 | ||
a0ae9c7c AB |
100 | # this is temp to handle compat with arch=ppc |
101 | config 8xx | |
102 | bool | |
103 | ||
a0ae9c7c | 104 | config E500 |
39aef685 | 105 | select FSL_EMB_PERFMON |
a0ae9c7c AB |
106 | bool |
107 | ||
3dfa8773 KG |
108 | config PPC_E500MC |
109 | bool "e500mc Support" | |
110 | select PPC_FPU | |
111 | depends on E500 | |
112 | ||
a0ae9c7c AB |
113 | config PPC_FPU |
114 | bool | |
115 | default y if PPC64 | |
116 | ||
117 | config 4xx | |
118 | bool | |
119 | depends on 40x || 44x | |
120 | default y | |
121 | ||
122 | config BOOKE | |
123 | bool | |
124 | depends on E200 || E500 || 44x | |
125 | default y | |
126 | ||
127 | config FSL_BOOKE | |
128 | bool | |
129 | depends on E200 || E500 | |
130 | default y | |
131 | ||
39aef685 | 132 | config FSL_EMB_PERFMON |
ad562c71 AF |
133 | 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 | |
39aef685 | 139 | |
a0ae9c7c AB |
140 | config PTE_64BIT |
141 | bool | |
4ee7084e BB |
142 | depends on 44x || E500 || PPC_86xx |
143 | default y if PHYS_64BIT | |
a0ae9c7c AB |
144 | |
145 | config PHYS_64BIT | |
4ee7084e BB |
146 | bool 'Large physical address support' if E500 || PPC_86xx |
147 | depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx | |
a0ae9c7c AB |
148 | ---help--- |
149 | This option enables kernel support for larger than 32-bit physical | |
4ee7084e BB |
150 | 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. | |
a0ae9c7c AB |
155 | |
156 | If in doubt, say N here. | |
157 | ||
158 | config ALTIVEC | |
159 | bool "AltiVec Support" | |
28794d34 | 160 | depends on 6xx || POWER4 |
a0ae9c7c AB |
161 | ---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 | ||
96d5b52c MN |
174 | config 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 | ||
a0ae9c7c AB |
190 | config SPE |
191 | bool "SPE Support" | |
3dfa8773 | 192 | depends on E200 || (E500 && !PPC_E500MC) |
a0ae9c7c AB |
193 | 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 | ||
206 | config PPC_STD_MMU | |
5b7c3c91 BH |
207 | def_bool y |
208 | depends on PPC_BOOK3S | |
a0ae9c7c AB |
209 | |
210 | config PPC_STD_MMU_32 | |
211 | def_bool y | |
212 | depends on PPC_STD_MMU && PPC32 | |
213 | ||
5e696617 BH |
214 | config PPC_STD_MMU_64 |
215 | def_bool y | |
216 | depends on PPC_STD_MMU && PPC64 | |
217 | ||
218 | config PPC_MMU_NOHASH | |
219 | def_bool y | |
220 | depends on !PPC_STD_MMU | |
221 | ||
70fe3af8 KG |
222 | config PPC_BOOK3E_MMU |
223 | def_bool y | |
224 | depends on FSL_BOOKE | |
225 | ||
a0ae9c7c AB |
226 | config PPC_MM_SLICES |
227 | bool | |
ca9153a3 | 228 | default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) |
a0ae9c7c AB |
229 | default n |
230 | ||
231 | config 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 | ||
246 | config SMP | |
00c4b95c | 247 | depends on PPC_STD_MMU || FSL_BOOKE |
a0ae9c7c AB |
248 | bool "Symmetric multi-processing support" |
249 | ---help--- | |
250 | This enables support for systems with more than one CPU. If you have | |
251 | a system with only one CPU, say N. If you have a system with more | |
252 | than one CPU, say Y. Note that the kernel does not currently | |
253 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
254 | since they have inadequate hardware support for multiprocessor | |
255 | operation. | |
256 | ||
257 | If you say N here, the kernel will run on single and multiprocessor | |
258 | machines, but will use only one CPU of a multiprocessor machine. If | |
259 | you say Y here, the kernel will run on single-processor machines. | |
260 | On a single-processor machine, the kernel will run faster if you say | |
261 | N here. | |
262 | ||
263 | If you don't know what to do here, say N. | |
264 | ||
265 | config NR_CPUS | |
2d8ae638 MN |
266 | int "Maximum number of CPUs (2-8192)" |
267 | range 2 8192 | |
a0ae9c7c AB |
268 | depends on SMP |
269 | default "32" if PPC64 | |
270 | default "4" | |
271 | ||
272 | config NOT_COHERENT_CACHE | |
273 | bool | |
e177edcd | 274 | depends on 4xx || 8xx || E200 || PPC_MPC512x |
a0ae9c7c AB |
275 | default y |
276 | ||
f8eb77d6 | 277 | config CHECK_CACHE_COHERENCY |
a0ae9c7c AB |
278 | bool |
279 | ||
280 | endmenu |