nvbios: Document INIT_MEM_INFO devinit opcode (0x9E)
nvbios: Document INIT_MEM_INFO devinit opcode (0x9E)

Forces the Memory Information Table entry look-up.

This function forces the init processor to execute entry look-up
in the Memory Information Table, which includes reading
Memory Strap and/or Memory ID from hardware registers and
searching for the matching entry. The memory information is then
cached for fast retrieval in subsequent operations.
Upon return from the Memory Information Table entry look-up, the
devinit engine continues processing.

This opcode allows for clear indication of when to read the
Memory Strap and Memory ID registers, which may be manipulated
by other devinit opcodes, so that all engines can be instructed
to process the Memory Information Table in an identical sequence.

Present on [core70,)

Source:
- https://download.nvidia.com/open-gpu-doc/Devinit/1/devinit.xml#INIT_MEM_INFO
- https://nvidia.github.io/open-gpu-doc/Devinit/devinit.xml

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