diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_irq.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_irq.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_irq.c b/drivers/gpu/drm/nouveau/nouveau_irq.c index f3ae74ef3318..819bc3dd89e0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_irq.c +++ b/drivers/gpu/drm/nouveau/nouveau_irq.c @@ -1216,8 +1216,9 @@ nouveau_irq_handler(DRM_IRQ_ARGS) { struct drm_device *dev = (struct drm_device *)arg; struct drm_nouveau_private *dev_priv = dev->dev_private; - uint32_t status; unsigned long flags; + u32 status; + int i; status = nv_rd32(dev, NV03_PMC_INTR_0); if (!status) @@ -1267,6 +1268,14 @@ nouveau_irq_handler(DRM_IRQ_ARGS) NV_PMC_INTR_0_NV50_I2C_PENDING); } + for (i = 0; i < 32 && status; i++) { + if (!(status & (1 << i)) || !dev_priv->irq_handler[i]) + continue; + + dev_priv->irq_handler[i](dev); + status &= ~(1 << i); + } + if (status) NV_ERROR(dev, "Unhandled PMC INTR status bits 0x%08x\n", status); @@ -1304,3 +1313,26 @@ nouveau_irq_fini(struct drm_device *dev) if (dev_priv->msi_enabled) pci_disable_msi(dev->pdev); } + +void +nouveau_irq_register(struct drm_device *dev, int status_bit, + void (*handler)(struct drm_device *)) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + unsigned long flags; + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + dev_priv->irq_handler[status_bit] = handler; + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); +} + +void +nouveau_irq_unregister(struct drm_device *dev, int status_bit) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + unsigned long flags; + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + dev_priv->irq_handler[status_bit] = NULL; + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); +} |