[Intel-gfx] [PATCH 0/2] drm/i915: Potential gen3 vblank interrupt fixes

ville.syrjala at linux.intel.com ville.syrjala at linux.intel.com
Wed Feb 5 15:12:23 CET 2014

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

The AGBBUSY# bit in INSTPM caught my eye while reading the code and
having the spec open at the same time. This series makes the code match
the spec, and also closes a potential race condition (which may or may
not be real, depending on how the hardware works).

Ville Syrjälä (2):
  drm/i915: Frob AGPBUSY# bit before enabling the vblank interrupt
  drm/i915: Flip the sense of AGPBUSY_DIS bit

 drivers/gpu/drm/i915/i915_irq.c | 14 +++++++++-----
 drivers/gpu/drm/i915/i915_reg.h |  2 +-
 2 files changed, 10 insertions(+), 6 deletions(-)


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