xref: /linux/Documentation/arch/powerpc/cpu_families.rst (revision 55d0969c451159cff86949b38c39171cab962069) 
1============
2CPU Families
3============
4
5This document tries to summarise some of the different cpu families that exist
6and are supported by arch/powerpc.
7
8
9Book3S (aka sPAPR)
10------------------
11
12- Hash MMU (except 603 and e300)
13- Radix MMU (POWER9 and later)
14- Software loaded TLB (603 and e300)
15- Selectable Software loaded TLB in addition to hash MMU (755, 7450, e600)
16- Mix of 32 & 64 bit::
17
18   +--------------+                 +----------------+
19   |  Old POWER   | --------------> | RS64 (threads) |
20   +--------------+                 +----------------+
21          |
22          |
23          v
24   +--------------+                 +----------------+      +------+
25   |     601      | --------------> |      603       | ---> | e300 |
26   +--------------+                 +----------------+      +------+
27          |                                 |
28          |                                 |
29          v                                 v
30   +--------------+    +-----+      +----------------+      +-------+
31   |     604      |    | 755 | <--- |    750 (G3)    | ---> | 750CX |
32   +--------------+    +-----+      +----------------+      +-------+
33          |                                 |                   |
34          |                                 |                   |
35          v                                 v                   v
36   +--------------+                 +----------------+      +-------+
37   | 620 (64 bit) |                 |      7400      |      | 750CL |
38   +--------------+                 +----------------+      +-------+
39          |                                 |                   |
40          |                                 |                   |
41          v                                 v                   v
42   +--------------+                 +----------------+      +-------+
43   |  POWER3/630  |                 |      7410      |      | 750FX |
44   +--------------+                 +----------------+      +-------+
45          |                                 |
46          |                                 |
47          v                                 v
48   +--------------+                 +----------------+
49   |   POWER3+    |                 |      7450      |
50   +--------------+                 +----------------+
51          |                                 |
52          |                                 |
53          v                                 v
54   +--------------+                 +----------------+
55   |    POWER4    |                 |      7455      |
56   +--------------+                 +----------------+
57          |                                 |
58          |                                 |
59          v                                 v
60   +--------------+     +-------+   +----------------+
61   |   POWER4+    | --> |  970  |   |      7447      |
62   +--------------+     +-------+   +----------------+
63          |                 |               |
64          |                 |               |
65          v                 v               v
66   +--------------+     +-------+   +----------------+
67   |    POWER5    |     | 970FX |   |      7448      |
68   +--------------+     +-------+   +----------------+
69          |                 |               |
70          |                 |               |
71          v                 v               v
72   +--------------+     +-------+   +----------------+
73   |   POWER5+    |     | 970MP |   |      e600      |
74   +--------------+     +-------+   +----------------+
75          |
76          |
77          v
78   +--------------+
79   |   POWER5++   |
80   +--------------+
81          |
82          |
83          v
84   +--------------+       +-------+
85   |    POWER6    | <-?-> | Cell  |
86   +--------------+       +-------+
87          |
88          |
89          v
90   +--------------+
91   |    POWER7    |
92   +--------------+
93          |
94          |
95          v
96   +--------------+
97   |   POWER7+    |
98   +--------------+
99          |
100          |
101          v
102   +--------------+
103   |    POWER8    |
104   +--------------+
105          |
106          |
107          v
108   +--------------+
109   |    POWER9    |
110   +--------------+
111          |
112          |
113          v
114   +--------------+
115   |   POWER10    |
116   +--------------+
117
118
119   +---------------+
120   | PA6T (64 bit) |
121   +---------------+
122
123
124IBM BookE
125---------
126
127- Software loaded TLB.
128- All 32 bit::
129
130   +--------------+
131   |     440      |
132   +--------------+
133          |
134          |
135          v
136   +--------------+     +----------------+
137   |     450      | --> |      BG/P      |
138   +--------------+     +----------------+
139          |
140          |
141          v
142   +--------------+
143   |     460      |
144   +--------------+
145          |
146          |
147          v
148   +--------------+
149   |     476      |
150   +--------------+
151
152
153Motorola/Freescale 8xx
154----------------------
155
156- Software loaded with hardware assist.
157- All 32 bit::
158
159   +-------------+
160   | MPC8xx Core |
161   +-------------+
162
163
164Freescale BookE
165---------------
166
167- Software loaded TLB.
168- e6500 adds HW loaded indirect TLB entries.
169- Mix of 32 & 64 bit::
170
171   +--------------+
172   |     e200     |
173   +--------------+
174
175
176   +--------------------------------+
177   |              e500              |
178   +--------------------------------+
179                   |
180                   |
181                   v
182   +--------------------------------+
183   |             e500v2             |
184   +--------------------------------+
185                   |
186                   |
187                   v
188   +--------------------------------+
189   |        e500mc (Book3e)         |
190   +--------------------------------+
191                   |
192                   |
193                   v
194   +--------------------------------+
195   |          e5500 (64 bit)        |
196   +--------------------------------+
197                   |
198                   |
199                   v
200   +--------------------------------+
201   | e6500 (HW TLB) (Multithreaded) |
202   +--------------------------------+
203
204
205IBM A2 core
206-----------
207
208- Book3E, software loaded TLB + HW loaded indirect TLB entries.
209- 64 bit::
210
211   +--------------+     +----------------+
212   |   A2 core    | --> |      WSP       |
213   +--------------+     +----------------+
214           |
215           |
216           v
217   +--------------+
218   |     BG/Q     |
219   +--------------+
220