diff options
| author | Ville Syrjälä | 2014-02-25 14:13:38 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2014-06-05 08:52:38 +0200 |
| commit | 12fabbcb9f0935c283230217c7de6b26d3d5caac (patch) | |
| tree | 3c93a8b2550ab04707f7a544cb1f2f263155cbad /drivers/gpu/drm/i915 | |
| parent | drm/i915/vlv: add pll assertion when disabling DPIO common well (diff) | |
| download | kernel-qcow2-linux-12fabbcb9f0935c283230217c7de6b26d3d5caac.tar.gz kernel-qcow2-linux-12fabbcb9f0935c283230217c7de6b26d3d5caac.tar.xz kernel-qcow2-linux-12fabbcb9f0935c283230217c7de6b26d3d5caac.zip | |
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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
2 files changed, 3 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 7f3568d2a1de..cf288a95347c 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -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); diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b86edac51be2..71de9eec3381 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -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) |