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path: root/drivers/char/drm/r128_irq.c
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Diffstat (limited to 'drivers/char/drm/r128_irq.c')
-rw-r--r--drivers/char/drm/r128_irq.c55
1 files changed, 20 insertions, 35 deletions
diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c
index 5b95bd8..c76fdca 100644
--- a/drivers/char/drm/r128_irq.c
+++ b/drivers/char/drm/r128_irq.c
@@ -35,16 +35,6 @@
#include "r128_drm.h"
#include "r128_drv.h"
-u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
-{
- const drm_r128_private_t *dev_priv = dev->dev_private;
-
- if (crtc != 0)
- return 0;
-
- return atomic_read(&dev_priv->vbl_received);
-}
-
irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
{
struct drm_device *dev = (struct drm_device *) arg;
@@ -56,38 +46,30 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
/* VBLANK interrupt */
if (status & R128_CRTC_VBLANK_INT) {
R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
- atomic_inc(&dev_priv->vbl_received);
- drm_handle_vblank(dev, 0);
+ atomic_inc(&dev->vbl_received);
+ DRM_WAKEUP(&dev->vbl_queue);
+ drm_vbl_send_signals(dev);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
-int r128_enable_vblank(struct drm_device *dev, int crtc)
+int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence)
{
- drm_r128_private_t *dev_priv = dev->dev_private;
-
- if (crtc != 0) {
- DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
- return -EINVAL;
- }
+ unsigned int cur_vblank;
+ int ret = 0;
- R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN);
- return 0;
-}
+ /* Assume that the user has missed the current sequence number
+ * by about a day rather than she wants to wait for years
+ * using vertical blanks...
+ */
+ DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
+ (((cur_vblank = atomic_read(&dev->vbl_received))
+ - *sequence) <= (1 << 23)));
-void r128_disable_vblank(struct drm_device *dev, int crtc)
-{
- if (crtc != 0)
- DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
+ *sequence = cur_vblank;
- /*
- * FIXME: implement proper interrupt disable by using the vblank
- * counter register (if available)
- *
- * R128_WRITE(R128_GEN_INT_CNTL,
- * R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN);
- */
+ return ret;
}
void r128_driver_irq_preinstall(struct drm_device * dev)
@@ -100,9 +82,12 @@ void r128_driver_irq_preinstall(struct drm_device * dev)
R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
}
-int r128_driver_irq_postinstall(struct drm_device * dev)
+void r128_driver_irq_postinstall(struct drm_device * dev)
{
- return drm_vblank_init(dev, 1);
+ drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private;
+
+ /* Turn on VBL interrupt */
+ R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN);
}
void r128_driver_irq_uninstall(struct drm_device * dev)
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