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authorJesse Barnes <jbarnes@virtuousgeek.org>2011-04-08 00:58:17 +0400
committerKeith Packard <keithp@keithp.com>2011-05-14 04:03:10 +0400
commitf796cf8f517f13826bb691432b03c7b5da13e530 (patch)
tree5f54e285e738bcb965e63a356b4b51bdcb0c7d02 /drivers/gpu/drm/i915/i915_irq.c
parent4697995b98417c6da9ab2708a36f5e2bc926c8ac (diff)
downloadlinux-f796cf8f517f13826bb691432b03c7b5da13e530.tar.xz
drm/i915: split enable/disable vblank code into chipset specific functions
This makes the Ironlake+ code trivial and generally simplifies things. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c42
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d967e1754cf2..33f0bc53a538 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1375,10 +1375,7 @@ int i915_enable_vblank(struct drm_device *dev, int pipe)
return -EINVAL;
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
- if (HAS_PCH_SPLIT(dev))
- ironlake_enable_display_irq(dev_priv, (pipe == 0) ?
- DE_PIPEA_VBLANK: DE_PIPEB_VBLANK);
- else if (INTEL_INFO(dev)->gen >= 4)
+ if (INTEL_INFO(dev)->gen >= 4)
i915_enable_pipestat(dev_priv, pipe,
PIPE_START_VBLANK_INTERRUPT_ENABLE);
else
@@ -1393,6 +1390,22 @@ int i915_enable_vblank(struct drm_device *dev, int pipe)
return 0;
}
+int ironlake_enable_vblank(struct drm_device *dev, int pipe)
+{
+ drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ unsigned long irqflags;
+
+ if (!i915_pipe_enabled(dev, pipe))
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ ironlake_enable_display_irq(dev_priv, (pipe == 0) ?
+ DE_PIPEA_VBLANK: DE_PIPEB_VBLANK);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+
+ return 0;
+}
+
/* Called from drm generic code, passed 'crtc' which
* we use as a pipe index
*/
@@ -1406,13 +1419,20 @@ void i915_disable_vblank(struct drm_device *dev, int pipe)
I915_WRITE(INSTPM,
INSTPM_AGPBUSY_DIS << 16 | INSTPM_AGPBUSY_DIS);
- if (HAS_PCH_SPLIT(dev))
- ironlake_disable_display_irq(dev_priv, (pipe == 0) ?
- DE_PIPEA_VBLANK: DE_PIPEB_VBLANK);
- else
- i915_disable_pipestat(dev_priv, pipe,
- PIPE_VBLANK_INTERRUPT_ENABLE |
- PIPE_START_VBLANK_INTERRUPT_ENABLE);
+ i915_disable_pipestat(dev_priv, pipe,
+ PIPE_VBLANK_INTERRUPT_ENABLE |
+ PIPE_START_VBLANK_INTERRUPT_ENABLE);
+ spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
+}
+
+void ironlake_disable_vblank(struct drm_device *dev, int pipe)
+{
+ drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
+ ironlake_disable_display_irq(dev_priv, (pipe == 0) ?
+ DE_PIPEA_VBLANK: DE_PIPEB_VBLANK);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}