On Mon, 3 Feb 2003, Keith Whitwell wrote:

>>>please find attached a complete patch that allows pci Radeon cards to
>>>work with DRI. It was created against the DRI CVS xc branch/trunk.
>> 
>> 
>> Thanks, I'll commit this unless someone else comes up with a better
>> solution.
>
>Well, I'd like to at least understand why *two* reads are necessary.

The first one to flush the ring buffer to the card prior to the
COMMIT_RING(), then the second one to flush the RADEON_WRITE()
inside COMMIT_RING() right away.


-- 
Mike A. Harris     ftp://people.redhat.com/mharris
OS Systems Engineer - XFree86 maintainer - Red Hat



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