Searched hist:"05 eff845a28499762075d3a72e238a31f4d2407c" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/gpu/drm/i915/ |
| H A D | i915_irq.c | diff 05eff845a28499762075d3a72e238a31f4d2407c Wed Nov 19 16:03:05 CST 2008 Keith Packard <keithp@keithp.com> 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>
|