Caches
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PL310 L2 Cache
The Vita uses the PL310 r3p1-50rel0 L2 cache (Cache ID Register = 0x410000C7) is is mapped to 0x1A002000.
RO Registers values
| Offset | Value | Name |
|---|---|---|
| 0x000 | 0x410000C7 | Cache ID Register |
| 0x004 | 0x1E440440 | Cache Type Register |
Configured values
It seems NSKBL initializes the Tag Latency Control Register to <1, 1, 1> (writes 0 to the L2 register), and Tag Latency Control Register to <2, 4, 2> (writes 0x131 to the L2 register).
| Offset | Value | Name |
|---|---|---|
| 0x100 | 0x00000001 | Control Register |
| 0x104 | 0x60090001 | Auxiliary Control Register |
| 0x108 | 0x00000000 | Tag RAM Latency Control Register |
| 0x10C | 0x00000131 | Data RAM Latency Control Register |
Auxiliary Control Register
| Bit(s) | Value | Field name | Description |
|---|---|---|---|
| 0 | 1 | Full Line of Zero Enable | Full line of write zero behavior Enabled |
| 16 | 1 | Associativity | 16-way |
| 19:17 | 4 | Way-size | 128KB |
| 29 | 1 | Instruction prefetch enable | Instruction prefetching enabled |
| 30 | 1 | Early BRESP enable | Early BRESP enabled |