Commit 12fabbcb authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter

drm/i915: Set AGPBUSY# bit in init_clock_gating

I don't see why we wouldn't want interrupts to wake up the CPU from C3
always, so just set the AGPBUSY# bit in gen3_init_clock_gating().
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 4dfbd12c
......@@ -2628,10 +2628,6 @@ static int i915_enable_vblank(struct drm_device *dev, int pipe)
else
i915_enable_pipestat(dev_priv, pipe,
PIPE_VBLANK_INTERRUPT_STATUS);
/* maintain vblank delivery even in deep C-states */
if (INTEL_INFO(dev)->gen == 3)
I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS));
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
return 0;
......@@ -2695,9 +2691,6 @@ static void i915_disable_vblank(struct drm_device *dev, int pipe)
unsigned long irqflags;
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
if (INTEL_INFO(dev)->gen == 3)
I915_WRITE(INSTPM, _MASKED_BIT_ENABLE(INSTPM_AGPBUSY_DIS));
i915_disable_pipestat(dev_priv, pipe,
PIPE_VBLANK_INTERRUPT_STATUS |
PIPE_START_VBLANK_INTERRUPT_STATUS);
......
......@@ -5504,6 +5504,9 @@ static void gen3_init_clock_gating(struct drm_device *dev)
/* IIR "flip pending" means done if this bit is set */
I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
/* interrupts should cause a wake up from C3 */
I915_WRITE(INSTPM, _MASKED_BIT_DISABLE(INSTPM_AGPBUSY_DIS));
}
static void i85x_init_clock_gating(struct drm_device *dev)
......
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