[PATCH 0/4] Haswell GPU hang fixes

[Paulo Zanoni <przanoni@gmail.com>]

From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Hi

Since we stopped running the gen6 workarounds on gen > 6 I started seeing a lot
of GPU hangs on my gen 7.5 machine. These patches add gen7+ workarounds which
prevent the GPU hangs I'm seeing.

These patches were tested mostly on HSW and briefly on IVB, but the workarounds
implemented are documented for both. This is also the first time I touch this
kind of code, so extra careful reviewing might be needed.

Thanks,
Paulo


Paulo Zanoni (4):
  drm/i915: add gen7_render_ring_flush
  drm/i915: add workarounds directly to gen6_render_ring_flush
  drm/i915: add workaround to gen7_render_ring_flush
  drm/i915: add one more workaround to gen7_render_ring_flush

 drivers/gpu/drm/i915/intel_ringbuffer.c | 81 ++++++++++++++++++++++++++++++---
 1 file changed, 74 insertions(+), 7 deletions(-)

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1.7.11.2