Re: [Mesa3d-dev] Memory management - an AGP manager

[Keith W. <ke...@tu...>]

Keith Whitwell wrote:

> 1) I think this is the first solution for memory management that I can
>    imagine implementing.  Also it's one which gives reasonable
>    performance when data is being evicted from the GART.

This sounds a little trite reading it back.

This a function of two things, firstly that I've thought more about this 
implementation than any other but also crucially that I've been able to find 
straightforward answers to most of the problems that have come up about the 
behaviour of the manager.

It seems to me that this could be implemented in a small to mid sized project 
and beyond the extensions to the AGP module for map/unmapping doesn't have too 
many scary implementation black holes.

It also seems like the drivers wouldn't change too drastically as a result of 
adopting this memory manager.

I've not mentioned replacement algorithms at all as I feel that the design 
doesn't place any constraints on the choice of replacement algorithm, pretty 
much anything can be implemented inside of ValidateBuffer() and the rest of the 
design would be unaffected.

Keith