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drm/i915: wrap GTIMR changes

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Just like the functions that touch DEIMR and SDEIMR, but for GTIMR.
The new functions contain a POSTING_READ(GTIMR) which was not present
at the 2 callers inside i915_irq.c.

The implementation is based on ibx_display_interrupt_update.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni
2013-08-06 18:57:12 -03:00
committed by Daniel Vetter
parent a40066412c
commit 43eaea1318
3 changed files with 39 additions and 20 deletions
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22
drivers/gpu/drm/i915/intel_ringbuffer.c
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@@ -836,11 +836,8 @@ gen5_ring_get_irq(struct intel_ring_buffer *ring)
return false;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
if (ring->irq_refcount++ == 0) {
dev_priv->gt_irq_mask &= ~ring->irq_enable_mask;
I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
POSTING_READ(GTIMR);
}
if (ring->irq_refcount++ == 0)
ilk_enable_gt_irq(dev_priv, ring->irq_enable_mask);
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
return true;
@@ -854,11 +851,8 @@ gen5_ring_put_irq(struct intel_ring_buffer *ring)
unsigned long flags;
spin_lock_irqsave(&dev_priv->irq_lock, flags);
if (--ring->irq_refcount == 0) {
dev_priv->gt_irq_mask |= ring->irq_enable_mask;
I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
POSTING_READ(GTIMR);
}
if (--ring->irq_refcount == 0)
ilk_disable_gt_irq(dev_priv, ring->irq_enable_mask);
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
}
@@ -1028,9 +1022,7 @@ gen6_ring_get_irq(struct intel_ring_buffer *ring)
GT_RENDER_L3_PARITY_ERROR_INTERRUPT));
else
I915_WRITE_IMR(ring, ~ring->irq_enable_mask);
dev_priv->gt_irq_mask &= ~ring->irq_enable_mask;
I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
POSTING_READ(GTIMR);
ilk_enable_gt_irq(dev_priv, ring->irq_enable_mask);
}
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
@@ -1051,9 +1043,7 @@ gen6_ring_put_irq(struct intel_ring_buffer *ring)
~GT_RENDER_L3_PARITY_ERROR_INTERRUPT);
else
I915_WRITE_IMR(ring, ~0);
dev_priv->gt_irq_mask |= ring->irq_enable_mask;
I915_WRITE(GTIMR, dev_priv->gt_irq_mask);
POSTING_READ(GTIMR);
ilk_disable_gt_irq(dev_priv, ring->irq_enable_mask);
}
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);