From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
We should only enable interrupts at postinstall.
And now on ILK/SNB/IVB/HSW the irq_preinstall and irq_postinstall
functions leave the hardware in the same state.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_irq.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d6723ab..79a8196 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2852,6 +2852,8 @@ static void ironlake_irq_reset(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ I915_WRITE(HWSTAM, 0xffffffff);
+
GEN5_IRQ_RESET(DE);
if (IS_GEN7(dev))
I915_WRITE(GEN7_ERR_INT, 0xffffffff);
@@ -2863,10 +2865,6 @@ static void ironlake_irq_reset(struct drm_device *dev)
static void ironlake_irq_preinstall(struct drm_device *dev)
{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-
- I915_WRITE(HWSTAM, 0xeffe);
-
ironlake_irq_reset(dev);
}
@@ -3049,6 +3047,8 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
dev_priv->irq_mask = ~display_mask;
+ I915_WRITE(HWSTAM, 0xeffe);
+
ibx_irq_pre_postinstall(dev);
GEN5_IRQ_INIT(DE, dev_priv->irq_mask, display_mask | extra_mask);
@@ -3307,8 +3307,6 @@ static void ironlake_irq_uninstall(struct drm_device *dev)
intel_hpd_irq_uninstall(dev_priv);
- I915_WRITE(HWSTAM, 0xffffffff);
-
ironlake_irq_reset(dev);
}
--
1.8.5.3
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