[Mesa3d-dev] gallium cached bufmgr busy change

[Dave A. <ai...@gm...>]

I've been playing with strategies to get r300 buffer management a bit
more efficient,

I've reworked the r300g screen/winsys and create a pb_bufmgr compliant
buffer class,
and stacked the cached buffer manager on top of it.

Now I've hit a problem in that we expose buffer busy state, but the
cached bufmgr
doesn't know to check if the buffer is busy before reusing it.

The attached patch adds a query for buffer busy to pb_bufmgr.h.

I've wondered if I can do this with some hacked up fences but it seems
like a lot
more work for not much gain.

Dave.