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Diffstat (limited to 'shared-core/i915_irq.c')
-rw-r--r--shared-core/i915_irq.c30
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)