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drm/i915: only enable HWSTAM interrupts on postinstall on ILK+

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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@intel.com>
[danvet: Fix compile fail due to drm_i915_private_t typedef removal.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2014-04-01 15:37:27 -03:00 committed by Daniel Vetter
parent 823f6b38e8
commit 0c84121202
1 changed files with 4 additions and 6 deletions
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10
drivers/gpu/drm/i915/i915_irq.c
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@ -2912,6 +2912,8 @@ 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);
@ -2923,10 +2925,6 @@ static void ironlake_irq_reset(struct drm_device *dev)
static void ironlake_irq_preinstall(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE(HWSTAM, 0xeffe);
ironlake_irq_reset(dev);
}
@ -3099,6 +3097,8 @@ 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);
@ -3354,8 +3354,6 @@ static void ironlake_irq_uninstall(struct drm_device *dev)
intel_hpd_irq_uninstall(dev_priv);
I915_WRITE(HWSTAM, 0xffffffff);
ironlake_irq_reset(dev);
}