drm/radeon: fix r600 writeback setup.

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This fixes 2 bugs:
1. the AGP calculation wasn't consistent with the PCI(E) calc for the
RPTR_ADDR registers. This consolidates the writes and fixes it up.

2. The scratch address was being incorrectly calculated, this breaks
it out into a lot more linear steps.

Signed-off-by: Dave Airlie <airlied@redhat.com>

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This commit is contained in:

Dave Airlie 2009-03-09 15:31:20 +10:00

parent 1847a549ac

commit 6546bf6d6c

1 changed files with 22 additions and 13 deletions

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drivers/gpu/drm/radeon/r600_cp.c

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