Request
| Request Word
|
Description
|
| 0
|
| Header
|
0x00020084
|
Cmd
|
0x0002
|
Param
|
2
|
Xlat
|
4
|
|
| 1
|
GPU address based at 0x1EB00000, must be word-aligned
|
| 2
|
Size, must be <=0x80 and word-aligned
|
| 3
|
Descriptor for static buffer (id 0)
|
| 4
|
Data pointer
|
| 5
|
Descriptor for static buffer (id 1)
|
| 6
|
Mask data pointer
|
Response
| Request Word
|
Description
|
| 0
|
| Header
|
0x00020080
|
Cmd
|
0x0002
|
Param
|
2
|
Xlat
|
0
|
|
| 1
|
Header code
|
| 2
|
Result code
|
Description
The GPU register offset must be <0x420000. GPU register = (register & ~maskword) | (data & maskword).