Documentation/powerpc/cpu_families.rst

   1 ============
   2 CPU Families
   3 ============
   4
   5 This document tries to summarise some of the different cpu families that exist
   6 and are supported by arch/powerpc.
   7
   8
   9 Book3S (aka sPAPR)
  10 ------------------
  11
  12 - Hash MMU (except 603 and e300)
  13 - Software loaded TLB (603 and e300)
  14 - Selectable Software loaded TLB in addition to hash MMU (755, 7450, e600)
  15 - Mix of 32 & 64 bit::
  16
  17    +--------------+                 +----------------+
  18    |  Old POWER   | --------------> | RS64 (threads) |
  19    +--------------+                 +----------------+
  20           |
  21           |
  22           v
  23    +--------------+                 +----------------+      +------+
  24    |     601      | --------------> |      603       | ---> | e300 |
  25    +--------------+                 +----------------+      +------+
  26           |                                 |
  27           |                                 |
  28           v                                 v
  29    +--------------+    +-----+      +----------------+      +-------+
  30    |     604      |    | 755 | <--- |    750 (G3)    | ---> | 750CX |
  31    +--------------+    +-----+      +----------------+      +-------+
  32           |                                 |                   |
  33           |                                 |                   |
  34           v                                 v                   v
  35    +--------------+                 +----------------+      +-------+
  36    | 620 (64 bit) |                 |      7400      |      | 750CL |
  37    +--------------+                 +----------------+      +-------+
  38           |                                 |                   |
  39           |                                 |                   |
  40           v                                 v                   v
  41    +--------------+                 +----------------+      +-------+
  42    |  POWER3/630  |                 |      7410      |      | 750FX |
  43    +--------------+                 +----------------+      +-------+
  44           |                                 |
  45           |                                 |
  46           v                                 v
  47    +--------------+                 +----------------+
  48    |   POWER3+    |                 |      7450      |
  49    +--------------+                 +----------------+
  50           |                                 |
  51           |                                 |
  52           v                                 v
  53    +--------------+                 +----------------+
  54    |    POWER4    |                 |      7455      |
  55    +--------------+                 +----------------+
  56           |                                 |
  57           |                                 |
  58           v                                 v
  59    +--------------+     +-------+   +----------------+
  60    |   POWER4+    | --> |  970  |   |      7447      |
  61    +--------------+     +-------+   +----------------+
  62           |                 |               |
  63           |                 |               |
  64           v                 v               v
  65    +--------------+     +-------+   +----------------+
  66    |    POWER5    |     | 970FX |   |      7448      |
  67    +--------------+     +-------+   +----------------+
  68           |                 |               |
  69           |                 |               |
  70           v                 v               v
  71    +--------------+     +-------+   +----------------+
  72    |   POWER5+    |     | 970MP |   |      e600      |
  73    +--------------+     +-------+   +----------------+
  74           |
  75           |
  76           v
  77    +--------------+
  78    |   POWER5++   |
  79    +--------------+
  80           |
  81           |
  82           v
  83    +--------------+       +-------+
  84    |    POWER6    | <-?-> | Cell  |
  85    +--------------+       +-------+
  86           |
  87           |
  88           v
  89    +--------------+
  90    |    POWER7    |
  91    +--------------+
  92           |
  93           |
  94           v
  95    +--------------+
  96    |   POWER7+    |
  97    +--------------+
  98           |
  99           |
 100           v
 101    +--------------+
 102    |    POWER8    |
 103    +--------------+
 104
 105
 106    +---------------+
 107    | PA6T (64 bit) |
 108    +---------------+
 109
 110
 111 IBM BookE
 112 ---------
 113
 114 - Software loaded TLB.
 115 - All 32 bit::
 116
 117    +--------------+
 118    |     401      |
 119    +--------------+
 120           |
 121           |
 122           v
 123    +--------------+
 124    |     403      |
 125    +--------------+
 126           |
 127           |
 128           v
 129    +--------------+
 130    |     405      |
 131    +--------------+
 132           |
 133           |
 134           v
 135    +--------------+
 136    |     440      |
 137    +--------------+
 138           |
 139           |
 140           v
 141    +--------------+     +----------------+
 142    |     450      | --> |      BG/P      |
 143    +--------------+     +----------------+
 144           |
 145           |
 146           v
 147    +--------------+
 148    |     460      |
 149    +--------------+
 150           |
 151           |
 152           v
 153    +--------------+
 154    |     476      |
 155    +--------------+
 156
 157
 158 Motorola/Freescale 8xx
 159 ----------------------
 160
 161 - Software loaded with hardware assist.
 162 - All 32 bit::
 163
 164    +-------------+
 165    | MPC8xx Core |
 166    +-------------+
 167
 168
 169 Freescale BookE
 170 ---------------
 171
 172 - Software loaded TLB.
 173 - e6500 adds HW loaded indirect TLB entries.
 174 - Mix of 32 & 64 bit::
 175
 176    +--------------+
 177    |     e200     |
 178    +--------------+
 179
 180
 181    +--------------------------------+
 182    |              e500              |
 183    +--------------------------------+
 184                    |
 185                    |
 186                    v
 187    +--------------------------------+
 188    |             e500v2             |
 189    +--------------------------------+
 190                    |
 191                    |
 192                    v
 193    +--------------------------------+
 194    |        e500mc (Book3e)         |
 195    +--------------------------------+
 196                    |
 197                    |
 198                    v
 199    +--------------------------------+
 200    |          e5500 (64 bit)        |
 201    +--------------------------------+
 202                    |
 203                    |
 204                    v
 205    +--------------------------------+
 206    | e6500 (HW TLB) (Multithreaded) |
 207    +--------------------------------+
 208
 209
 210 IBM A2 core
 211 -----------
 212
 213 - Book3E, software loaded TLB + HW loaded indirect TLB entries.
 214 - 64 bit::
 215
 216    +--------------+     +----------------+
 217    |   A2 core    | --> |      WSP       |
 218    +--------------+     +----------------+
 219            |
 220            |
 221            v
 222    +--------------+
 223    |     BG/Q     |
 224    +--------------+