diff options
Diffstat (limited to 'shared-core/i915_irq.c')
| -rw-r--r-- | shared-core/i915_irq.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c index f9fe5e2a..0609dba7 100644 --- a/shared-core/i915_irq.c +++ b/shared-core/i915_irq.c @@ -514,15 +514,37 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) */ if (iir & I915_DISPLAY_PIPE_A_EVENT_INTERRUPT) { pipea_stats = I915_READ(PIPEASTAT); + /* The vblank interrupt gets enabled even if we didn't ask for + it, so make sure it's shut down again */ + if (!(dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_A)) + pipea_stats &= ~(PIPE_START_VBLANK_INTERRUPT_ENABLE | + PIPE_VBLANK_INTERRUPT_ENABLE); + else if (pipea_stats & (PIPE_START_VBLANK_INTERRUPT_STATUS| + PIPE_VBLANK_INTERRUPT_STATUS)) + { + vblank++; + drm_handle_vblank(dev, i915_get_plane(dev, 0)); + } + I915_WRITE(PIPEASTAT, pipea_stats); } if (iir & I915_DISPLAY_PIPE_B_EVENT_INTERRUPT) { pipeb_stats = I915_READ(PIPEBSTAT); I915_WRITE(PIPEBSTAT, pipeb_stats); + /* The vblank interrupt gets enabled even if we didn't ask for + it, so make sure it's shut down again */ + if (!(dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_B)) + pipeb_stats &= ~(PIPE_START_VBLANK_INTERRUPT_ENABLE | + PIPE_VBLANK_INTERRUPT_ENABLE); + else if (pipeb_stats & (PIPE_START_VBLANK_INTERRUPT_STATUS| + PIPE_VBLANK_INTERRUPT_STATUS)) + { + vblank++; + drm_handle_vblank(dev, i915_get_plane(dev, 1)); + } } - I915_WRITE(IIR, iir); #ifdef __linux__ if (dev->pdev->msi_enabled) I915_WRITE(IMR, dev_priv->irq_mask_reg); @@ -1110,9 +1132,9 @@ void i915_driver_irq_preinstall(struct drm_device * dev) { struct drm_i915_private *dev_priv = dev->dev_private; - I915_WRITE16(HWSTAM, 0xeffe); - I915_WRITE16(IMR, 0x0); - I915_WRITE16(IER, 0x0); + I915_WRITE(HWSTAM, 0xeffe); + I915_WRITE(IMR, 0xffffffff); + I915_WRITE(IER, 0x0); } int i915_driver_irq_postinstall(struct drm_device * dev) |