http://bugs.freedesktop.org/show_bug.cgi?id=18609
Eric Anholt <[EMAIL PROTECTED]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #7 from Eric Anholt <[EMAIL PROTECTED]> 2008-11-25 17:26:11 PST ---
Better patches have landed in for-airlied now and should be getting pulled
soon. There was a race condition, but the effects of failure were quite
different from what the spec says should have happened in that case. Also,
never managed to reproduce on GM965 here.
commit f560d6b932e4ac067188d071195875e2cb143bfa
Author: Keith Packard <[EMAIL PROTECTED]>
Date: Wed Nov 19 14:03:05 2008 -0800
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.
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