From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
The main motivation here is to fix CHV irq handling which got a bit broken
by the removal of the loop. The loop is still gone after I'm done, and
I also killed the loop from the VLV code. That's roughly the first half
of the series.
The second half of the series goes a bit further and splits up the VLV/CHV
irq handlers into clear ack and handle phases. One idea I had long ago that
we could try to move the handling part into a thread, leaving only the ack
part in hard irq context. But this series doesn't go quite that far. Also
I only did the split for VLV/CHV, but if we go ahead with it, we should do
it for all platforms. It's mostly mechanical work anyway.
The whole series is available here:
git://github.com/vsyrjala/linux.git vlv_chv_irq_fixes
Ville Syrjälä (12):
drm/i915: Use GEN8_MASTER_IRQ_CONTROL consistently
drm/i915: Set up VLV_MASTER_IER consistently
drm/i915: Clear VLV_IIR after PIPESTAT
drm/i915: Clear VLV_MASTER_IER around irq processing
drm/i915: Clear VLV_IER around irq processing
drm/i915: Eliminate loop from VLV irq handler
drm/i915: Move variables to narrower scope in VLV/CHV irq handlers
drm/i915: Split PORT_HOTPLUG_STAT ack out from i9xx_hpd_irq_handler()
drm/i915: Split VLV/CVH PIPESTAT handling into ack+handler
drm/i915: Move gt/pm irq handling out from irq disabled section on VLV
drm/i915: Eliminate passing dev+dev_priv to {snb,ilk}_gt_irq_handler()
drm/i915: Split gen8_gt_irq_handler into ack+handle
drivers/gpu/drm/i915/i915_irq.c | 280 ++++++++++++++++++++++++++--------------
1 file changed, 183 insertions(+), 97 deletions(-)
--
2.7.4
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