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drm/i915: fix render pipe control notify on sandybridge

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This one is missed in last pipe control fix for sandybridge,
that really unmask interrupt bit for notify in render engine IMR.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Zhenyu Wang 2010-08-19 09:46:15 +08:00 committed by Eric Anholt
parent 877fdacf82
commit 3fdef0205e
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/i915/i915_irq.c
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@ -1381,12 +1381,17 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
I915_WRITE(DEIER, dev_priv->de_irq_enable_reg);
(void) I915_READ(DEIER);
/* user interrupt should be enabled, but masked initial */
/* Gen6 only needs render pipe_control now */
if (IS_GEN6(dev))
render_mask = GT_PIPE_NOTIFY;
dev_priv->gt_irq_mask_reg = ~render_mask;
dev_priv->gt_irq_enable_reg = render_mask;
I915_WRITE(GTIIR, I915_READ(GTIIR));
I915_WRITE(GTIMR, dev_priv->gt_irq_mask_reg);
if (IS_GEN6(dev))
I915_WRITE(GEN6_RENDER_IMR, ~GEN6_RENDER_PIPE_CONTROL_NOTIFY_INTERRUPT);
I915_WRITE(GTIER, dev_priv->gt_irq_enable_reg);
(void) I915_READ(GTIER);