tree 72c9700869c065a5432129928d86409dab7d0d6c
parent 2678d9d6964b29ecd1975870c7a850242b29bc5c
author Keith Packard <keithp@keithp.com> 1227132185 -0800
committer Dave Airlie <airlied@redhat.com> 1227569308 +1000

drm/i915: Always read pipestat in irq_handler

Because we write pipestat before iir, it's possible that a pipestat
interrupt will occur between the pipestat write and the iir write. This
leaves pipestat with an interrupt status not visible in iir. This may cause
an interrupt flood as we never clear the pipestat event.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>