diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 75 |
1 files changed, 39 insertions, 36 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index aa7fd82aa6eb..63f28adf6509 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -255,7 +255,6 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev) drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; int ret = IRQ_NONE; u32 de_iir, gt_iir, de_ier; - u32 new_de_iir, new_gt_iir; struct drm_i915_master_private *master_priv; /* disable master interrupt before clearing iir */ @@ -266,35 +265,31 @@ irqreturn_t igdng_irq_handler(struct drm_device *dev) de_iir = I915_READ(DEIIR); gt_iir = I915_READ(GTIIR); - for (;;) { - if (de_iir == 0 && gt_iir == 0) - break; - - ret = IRQ_HANDLED; + if (de_iir == 0 && gt_iir == 0) + goto done; - I915_WRITE(DEIIR, de_iir); - new_de_iir = I915_READ(DEIIR); - I915_WRITE(GTIIR, gt_iir); - new_gt_iir = I915_READ(GTIIR); + ret = IRQ_HANDLED; - if (dev->primary->master) { - master_priv = dev->primary->master->driver_priv; - if (master_priv->sarea_priv) - master_priv->sarea_priv->last_dispatch = - READ_BREADCRUMB(dev_priv); - } - - if (gt_iir & GT_USER_INTERRUPT) { - u32 seqno = i915_get_gem_seqno(dev); - dev_priv->mm.irq_gem_seqno = seqno; - trace_i915_gem_request_complete(dev, seqno); - DRM_WAKEUP(&dev_priv->irq_queue); - } + if (dev->primary->master) { + master_priv = dev->primary->master->driver_priv; + if (master_priv->sarea_priv) + master_priv->sarea_priv->last_dispatch = + READ_BREADCRUMB(dev_priv); + } - de_iir = new_de_iir; - gt_iir = new_gt_iir; + if (gt_iir & GT_USER_INTERRUPT) { + u32 seqno = i915_get_gem_seqno(dev); + dev_priv->mm.irq_gem_seqno = seqno; + trace_i915_gem_request_complete(dev, seqno); + DRM_WAKEUP(&dev_priv->irq_queue); + dev_priv->hangcheck_count = 0; + mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD); } + I915_WRITE(GTIIR, gt_iir); + I915_WRITE(DEIIR, de_iir); + +done: I915_WRITE(DEIER, de_ier); (void)I915_READ(DEIER); @@ -1049,6 +1044,10 @@ void i915_driver_irq_preinstall(struct drm_device * dev) (void) I915_READ(IER); } +/* + * Must be called after intel_modeset_init or hotplug interrupts won't be + * enabled correctly. + */ int i915_driver_irq_postinstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; @@ -1071,19 +1070,23 @@ int i915_driver_irq_postinstall(struct drm_device *dev) if (I915_HAS_HOTPLUG(dev)) { u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN); - /* Leave other bits alone */ - hotplug_en |= HOTPLUG_EN_MASK; + /* Note HDMI and DP share bits */ + if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) + hotplug_en |= HDMIB_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) + hotplug_en |= HDMIC_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) + hotplug_en |= HDMID_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS) + hotplug_en |= SDVOC_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS) + hotplug_en |= SDVOB_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) + hotplug_en |= CRT_HOTPLUG_INT_EN; + /* Ignore TV since it's buggy */ + I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); - dev_priv->hotplug_supported_mask = CRT_HOTPLUG_INT_STATUS | - TV_HOTPLUG_INT_STATUS | SDVOC_HOTPLUG_INT_STATUS | - SDVOB_HOTPLUG_INT_STATUS; - if (IS_G4X(dev)) { - dev_priv->hotplug_supported_mask |= - HDMIB_HOTPLUG_INT_STATUS | - HDMIC_HOTPLUG_INT_STATUS | - HDMID_HOTPLUG_INT_STATUS; - } /* Enable in IER... */ enable_mask |= I915_DISPLAY_PORT_INTERRUPT; /* and unmask in IMR */ |