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Diffstat (limited to 'shared-core/i915_irq.c')
-rw-r--r--shared-core/i915_irq.c68
1 files changed, 57 insertions, 11 deletions
diff --git a/shared-core/i915_irq.c b/shared-core/i915_irq.c
index feb7acc7..a48e1ff8 100644
--- a/shared-core/i915_irq.c
+++ b/shared-core/i915_irq.c
@@ -138,10 +138,11 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
temp = I915_READ16(I915REG_INT_IDENTITY_R);
- temp &= (USER_INT_FLAG | VSYNC_PIPEA_FLAG | VSYNC_PIPEB_FLAG);
+ temp &= (dev_priv->irq_enable_reg | USER_INT_FLAG);
+#if 0
DRM_DEBUG("%s flag=%08x\n", __FUNCTION__, temp);
-
+#endif
if (temp == 0)
return IRQ_NONE;
@@ -149,8 +150,12 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
- if (temp & USER_INT_FLAG)
+ if (temp & USER_INT_FLAG) {
DRM_WAKEUP(&dev_priv->irq_queue);
+#ifdef I915_HAVE_FENCE
+ i915_fence_handler(dev);
+#endif
+ }
if (temp & (VSYNC_PIPEA_FLAG | VSYNC_PIPEB_FLAG)) {
int vblank_pipe = dev_priv->vblank_pipe;
@@ -178,7 +183,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
return IRQ_HANDLED;
}
-static int i915_emit_irq(drm_device_t * dev)
+int i915_emit_irq(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
@@ -208,6 +213,28 @@ static int i915_emit_irq(drm_device_t * dev)
}
+void i915_user_irq_on(drm_i915_private_t *dev_priv)
+{
+ spin_lock(&dev_priv->user_irq_lock);
+ if (dev_priv->irq_enabled && (++dev_priv->user_irq_refcount == 1)){
+ dev_priv->irq_enable_reg |= USER_INT_FLAG;
+ I915_WRITE16(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg);
+ }
+ spin_unlock(&dev_priv->user_irq_lock);
+
+}
+
+void i915_user_irq_off(drm_i915_private_t *dev_priv)
+{
+ spin_lock(&dev_priv->user_irq_lock);
+ if (dev_priv->irq_enabled && (--dev_priv->user_irq_refcount == 0)) {
+ // dev_priv->irq_enable_reg &= ~USER_INT_FLAG;
+ // I915_WRITE16(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg);
+ }
+ spin_unlock(&dev_priv->user_irq_lock);
+}
+
+
static int i915_wait_irq(drm_device_t * dev, int irq_nr)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
@@ -220,9 +247,11 @@ static int i915_wait_irq(drm_device_t * dev, int irq_nr)
return 0;
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
-
+
+ i915_user_irq_on(dev_priv);
DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ,
READ_BREADCRUMB(dev_priv) >= irq_nr);
+ i915_user_irq_off(dev_priv);
if (ret == DRM_ERR(EBUSY)) {
DRM_ERROR("%s: EBUSY -- rec: %d emitted: %d\n",
@@ -316,15 +345,15 @@ int i915_irq_wait(DRM_IOCTL_ARGS)
static void i915_enable_interrupt (drm_device_t *dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u16 flag;
- flag = 0;
+ dev_priv->irq_enable_reg = USER_INT_FLAG;
if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_A)
- flag |= VSYNC_PIPEA_FLAG;
+ dev_priv->irq_enable_reg |= VSYNC_PIPEA_FLAG;
if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_B)
- flag |= VSYNC_PIPEB_FLAG;
+ dev_priv->irq_enable_reg |= VSYNC_PIPEB_FLAG;
- I915_WRITE16(I915REG_INT_ENABLE_R, USER_INT_FLAG | flag);
+ I915_WRITE16(I915REG_INT_ENABLE_R, dev_priv->irq_enable_reg);
+ dev_priv->irq_enabled = 1;
}
/* Set the vblank monitor pipe
@@ -497,7 +526,7 @@ void i915_driver_irq_preinstall(drm_device_t * dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- I915_WRITE16(I915REG_HWSTAM, 0xfffe);
+ I915_WRITE16(I915REG_HWSTAM, 0xeffe);
I915_WRITE16(I915REG_INT_MASK_R, 0x0);
I915_WRITE16(I915REG_INT_ENABLE_R, 0x0);
}
@@ -512,8 +541,24 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
if (!dev_priv->vblank_pipe)
dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A;
+
+ dev_priv->swaps_lock = SPIN_LOCK_UNLOCKED;
+ INIT_LIST_HEAD(&dev_priv->vbl_swaps.head);
+ dev_priv->swaps_pending = 0;
+
+ dev_priv->user_irq_lock = SPIN_LOCK_UNLOCKED;
+ dev_priv->user_irq_refcount = 0;
+
+ if (!dev_priv->vblank_pipe)
+ dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A;
i915_enable_interrupt(dev);
DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
+
+ /*
+ * Initialize the hardware status page IRQ location.
+ */
+
+ I915_WRITE(I915REG_INSTPM, ( 1 << 5) | ( 1 << 21));
}
void i915_driver_irq_uninstall(drm_device_t * dev)
@@ -523,6 +568,7 @@ void i915_driver_irq_uninstall(drm_device_t * dev)
if (!dev_priv)
return;
+ dev_priv->irq_enabled = 0;
I915_WRITE16(I915REG_HWSTAM, 0xffff);
I915_WRITE16(I915REG_INT_MASK_R, 0xffff);
I915_WRITE16(I915REG_INT_ENABLE_R, 0x0);