Commit | Line | Data |
---|---|---|
a0ae9c7c AB |
1 | config 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 | ||
8 | menu "Processor support" | |
9 | choice | |
10 | prompt "Processor Type" | |
11 | depends on PPC32 | |
12 | default 6xx | |
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 | ||
24 | config 6xx | |
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 BH |
60 | # Until we have a choice of exclusive CPU types on 64-bit, we always |
61 | # use PPC_BOOK3S. On 32-bit, this is equivalent to 6xx which is | |
62 | # "classic" MMU | |
63 | ||
64 | config PPC_BOOK3S | |
65 | def_bool y | |
66 | depends on PPC64 || 6xx | |
67 | ||
a0ae9c7c AB |
68 | config POWER4_ONLY |
69 | bool "Optimize for POWER4" | |
28794d34 | 70 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
71 | default n |
72 | ---help--- | |
73 | Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. | |
74 | The resulting binary will not work on POWER3 or RS64 processors | |
75 | when compiled with binutils 2.15 or later. | |
76 | ||
77 | config POWER3 | |
78 | bool | |
28794d34 | 79 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
80 | default y if !POWER4_ONLY |
81 | ||
82 | config POWER4 | |
28794d34 | 83 | depends on PPC64 && PPC_BOOK3S |
a0ae9c7c AB |
84 | def_bool y |
85 | ||
3164cccd AB |
86 | config TUNE_CELL |
87 | bool "Optimize for Cell Broadband Engine" | |
28794d34 | 88 | depends on PPC64 && PPC_BOOK3S |
3164cccd AB |
89 | help |
90 | Cause the compiler to optimize for the PPE of the Cell Broadband | |
91 | Engine. This will make the code run considerably faster on Cell | |
92 | but somewhat slower on other machines. This option only changes | |
93 | the scheduling of instructions, not the selection of instructions | |
94 | itself, so the resulting kernel will keep running on all other | |
95 | machines. When building a kernel that is supposed to run only | |
96 | on Cell, you should also select the POWER4_ONLY option. | |
97 | ||
a0ae9c7c AB |
98 | # this is temp to handle compat with arch=ppc |
99 | config 8xx | |
100 | bool | |
101 | ||
a0ae9c7c | 102 | config E500 |
39aef685 | 103 | select FSL_EMB_PERFMON |
a0ae9c7c AB |
104 | bool |
105 | ||
3dfa8773 KG |
106 | config PPC_E500MC |
107 | bool "e500mc Support" | |
108 | select PPC_FPU | |
109 | depends on E500 | |
110 | ||
a0ae9c7c AB |
111 | config PPC_FPU |
112 | bool | |
113 | default y if PPC64 | |
114 | ||
115 | config 4xx | |
116 | bool | |
117 | depends on 40x || 44x | |
118 | default y | |
119 | ||
120 | config BOOKE | |
121 | bool | |
122 | depends on E200 || E500 || 44x | |
123 | default y | |
124 | ||
125 | config FSL_BOOKE | |
126 | bool | |
127 | depends on E200 || E500 | |
128 | default y | |
129 | ||
39aef685 | 130 | config FSL_EMB_PERFMON |
ad562c71 AF |
131 | bool "Freescale Embedded Perfmon" |
132 | depends on E500 || PPC_83xx | |
133 | help | |
134 | This is the Performance Monitor support found on the e500 core | |
135 | and some e300 cores (c3 and c4). Select this only if your | |
136 | core supports the Embedded Performance Monitor APU | |
39aef685 | 137 | |
a0ae9c7c AB |
138 | config PTE_64BIT |
139 | bool | |
4ee7084e BB |
140 | depends on 44x || E500 || PPC_86xx |
141 | default y if PHYS_64BIT | |
a0ae9c7c AB |
142 | |
143 | config PHYS_64BIT | |
4ee7084e BB |
144 | bool 'Large physical address support' if E500 || PPC_86xx |
145 | depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx | |
a0ae9c7c AB |
146 | ---help--- |
147 | This option enables kernel support for larger than 32-bit physical | |
4ee7084e BB |
148 | addresses. This feature may not be available on all cores. |
149 | ||
150 | If you have more than 3.5GB of RAM or so, you also need to enable | |
151 | SWIOTLB under Kernel Options for this to work. The actual number | |
152 | is platform-dependent. | |
a0ae9c7c AB |
153 | |
154 | If in doubt, say N here. | |
155 | ||
156 | config ALTIVEC | |
157 | bool "AltiVec Support" | |
28794d34 | 158 | depends on 6xx || POWER4 |
a0ae9c7c AB |
159 | ---help--- |
160 | This option enables kernel support for the Altivec extensions to the | |
161 | PowerPC processor. The kernel currently supports saving and restoring | |
162 | altivec registers, and turning on the 'altivec enable' bit so user | |
163 | processes can execute altivec instructions. | |
164 | ||
165 | This option is only usefully if you have a processor that supports | |
166 | altivec (G4, otherwise known as 74xx series), but does not have | |
167 | any affect on a non-altivec cpu (it does, however add code to the | |
168 | kernel). | |
169 | ||
170 | If in doubt, say Y here. | |
171 | ||
96d5b52c MN |
172 | config VSX |
173 | bool "VSX Support" | |
174 | depends on POWER4 && ALTIVEC && PPC_FPU | |
175 | ---help--- | |
176 | ||
177 | This option enables kernel support for the Vector Scaler extensions | |
178 | to the PowerPC processor. The kernel currently supports saving and | |
179 | restoring VSX registers, and turning on the 'VSX enable' bit so user | |
180 | processes can execute VSX instructions. | |
181 | ||
182 | This option is only useful if you have a processor that supports | |
183 | VSX (P7 and above), but does not have any affect on a non-VSX | |
184 | CPUs (it does, however add code to the kernel). | |
185 | ||
186 | If in doubt, say Y here. | |
187 | ||
a0ae9c7c AB |
188 | config SPE |
189 | bool "SPE Support" | |
3dfa8773 | 190 | depends on E200 || (E500 && !PPC_E500MC) |
a0ae9c7c AB |
191 | default y |
192 | ---help--- | |
193 | This option enables kernel support for the Signal Processing | |
194 | Extensions (SPE) to the PowerPC processor. The kernel currently | |
195 | supports saving and restoring SPE registers, and turning on the | |
196 | 'spe enable' bit so user processes can execute SPE instructions. | |
197 | ||
198 | This option is only useful if you have a processor that supports | |
199 | SPE (e500, otherwise known as 85xx series), but does not have any | |
200 | effect on a non-spe cpu (it does, however add code to the kernel). | |
201 | ||
202 | If in doubt, say Y here. | |
203 | ||
204 | config PPC_STD_MMU | |
205 | bool | |
5e696617 | 206 | depends on 6xx || PPC64 |
a0ae9c7c AB |
207 | default y |
208 | ||
209 | config PPC_STD_MMU_32 | |
210 | def_bool y | |
211 | depends on PPC_STD_MMU && PPC32 | |
212 | ||
5e696617 BH |
213 | config PPC_STD_MMU_64 |
214 | def_bool y | |
215 | depends on PPC_STD_MMU && PPC64 | |
216 | ||
217 | config PPC_MMU_NOHASH | |
218 | def_bool y | |
219 | depends on !PPC_STD_MMU | |
220 | ||
70fe3af8 KG |
221 | config PPC_BOOK3E_MMU |
222 | def_bool y | |
223 | depends on FSL_BOOKE | |
224 | ||
a0ae9c7c AB |
225 | config PPC_MM_SLICES |
226 | bool | |
ca9153a3 | 227 | default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) |
a0ae9c7c AB |
228 | default n |
229 | ||
230 | config VIRT_CPU_ACCOUNTING | |
231 | bool "Deterministic task and CPU time accounting" | |
232 | depends on PPC64 | |
233 | default y | |
234 | help | |
235 | Select this option to enable more accurate task and CPU time | |
236 | accounting. This is done by reading a CPU counter on each | |
237 | kernel entry and exit and on transitions within the kernel | |
238 | between system, softirq and hardirq state, so there is a | |
239 | small performance impact. This also enables accounting of | |
240 | stolen time on logically-partitioned systems running on | |
241 | IBM POWER5-based machines. | |
242 | ||
243 | If in doubt, say Y here. | |
244 | ||
245 | config SMP | |
00c4b95c | 246 | depends on PPC_STD_MMU || FSL_BOOKE |
a0ae9c7c AB |
247 | bool "Symmetric multi-processing support" |
248 | ---help--- | |
249 | This enables support for systems with more than one CPU. If you have | |
250 | a system with only one CPU, say N. If you have a system with more | |
251 | than one CPU, say Y. Note that the kernel does not currently | |
252 | support SMP machines with 603/603e/603ev or PPC750 ("G3") processors | |
253 | since they have inadequate hardware support for multiprocessor | |
254 | operation. | |
255 | ||
256 | If you say N here, the kernel will run on single and multiprocessor | |
257 | machines, but will use only one CPU of a multiprocessor machine. If | |
258 | you say Y here, the kernel will run on single-processor machines. | |
259 | On a single-processor machine, the kernel will run faster if you say | |
260 | N here. | |
261 | ||
262 | If you don't know what to do here, say N. | |
263 | ||
264 | config NR_CPUS | |
90035fe3 TB |
265 | int "Maximum number of CPUs (2-1024)" |
266 | range 2 1024 | |
a0ae9c7c AB |
267 | depends on SMP |
268 | default "32" if PPC64 | |
269 | default "4" | |
270 | ||
271 | config NOT_COHERENT_CACHE | |
272 | bool | |
e177edcd | 273 | depends on 4xx || 8xx || E200 || PPC_MPC512x |
a0ae9c7c AB |
274 | default y |
275 | ||
f8eb77d6 | 276 | config CHECK_CACHE_COHERENCY |
a0ae9c7c AB |
277 | bool |
278 | ||
279 | endmenu |