]> err.no Git - linux-2.6/blobdiff - drivers/char/drm/radeon_irq.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / drivers / char / drm / radeon_irq.c
index 3ff0baa2fbfa201f7c37c20df5d6c601afc009d7..ad8a0ac7182e9ead9d1498fd57b3dc28cdbb95de 100644 (file)
@@ -64,7 +64,7 @@ static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv,
 
 irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
 {
-       drm_device_t *dev = (drm_device_t *) arg;
+       struct drm_device *dev = (struct drm_device *) arg;
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
        u32 stat;
@@ -73,18 +73,35 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
         * outside the DRM
         */
        stat = radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK |
-                                                 RADEON_CRTC_VBLANK_STAT));
+                                                 RADEON_CRTC_VBLANK_STAT |
+                                                 RADEON_CRTC2_VBLANK_STAT));
        if (!stat)
                return IRQ_NONE;
 
+       stat &= dev_priv->irq_enable_reg;
+
        /* SW interrupt */
        if (stat & RADEON_SW_INT_TEST) {
                DRM_WAKEUP(&dev_priv->swi_queue);
        }
 
        /* VBLANK interrupt */
-       if (stat & RADEON_CRTC_VBLANK_STAT) {
-               atomic_inc(&dev->vbl_received);
+       if (stat & (RADEON_CRTC_VBLANK_STAT|RADEON_CRTC2_VBLANK_STAT)) {
+               int vblank_crtc = dev_priv->vblank_crtc;
+
+               if ((vblank_crtc &
+                    (DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) ==
+                   (DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) {
+                       if (stat & RADEON_CRTC_VBLANK_STAT)
+                               atomic_inc(&dev->vbl_received);
+                       if (stat & RADEON_CRTC2_VBLANK_STAT)
+                               atomic_inc(&dev->vbl_received2);
+               } else if (((stat & RADEON_CRTC_VBLANK_STAT) &&
+                          (vblank_crtc & DRM_RADEON_VBLANK_CRTC1)) ||
+                          ((stat & RADEON_CRTC2_VBLANK_STAT) &&
+                           (vblank_crtc & DRM_RADEON_VBLANK_CRTC2)))
+                       atomic_inc(&dev->vbl_received);
+
                DRM_WAKEUP(&dev->vbl_queue);
                drm_vbl_send_signals(dev);
        }
@@ -92,7 +109,7 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
        return IRQ_HANDLED;
 }
 
-static int radeon_emit_irq(drm_device_t * dev)
+static int radeon_emit_irq(struct drm_device * dev)
 {
        drm_radeon_private_t *dev_priv = dev->dev_private;
        unsigned int ret;
@@ -110,7 +127,7 @@ static int radeon_emit_irq(drm_device_t * dev)
        return ret;
 }
 
-static int radeon_wait_irq(drm_device_t * dev, int swi_nr)
+static int radeon_wait_irq(struct drm_device * dev, int swi_nr)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
@@ -127,19 +144,30 @@ static int radeon_wait_irq(drm_device_t * dev, int swi_nr)
        return ret;
 }
 
-int radeon_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence)
+int radeon_driver_vblank_do_wait(struct drm_device * dev, unsigned int *sequence,
+                                int crtc)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
        unsigned int cur_vblank;
        int ret = 0;
-
+       int ack = 0;
+       atomic_t *counter;
        if (!dev_priv) {
                DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
                return DRM_ERR(EINVAL);
        }
 
-       radeon_acknowledge_irqs(dev_priv, RADEON_CRTC_VBLANK_STAT);
+       if (crtc == DRM_RADEON_VBLANK_CRTC1) {
+               counter = &dev->vbl_received;
+               ack |= RADEON_CRTC_VBLANK_STAT;
+       } else if (crtc == DRM_RADEON_VBLANK_CRTC2) {
+               counter = &dev->vbl_received2;
+               ack |= RADEON_CRTC2_VBLANK_STAT;
+       } else
+               return DRM_ERR(EINVAL);
+
+       radeon_acknowledge_irqs(dev_priv, ack);
 
        dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
 
@@ -148,7 +176,7 @@ int radeon_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence)
         * using vertical blanks...
         */
        DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
-                   (((cur_vblank = atomic_read(&dev->vbl_received))
+                   (((cur_vblank = atomic_read(counter))
                      - *sequence) <= (1 << 23)));
 
        *sequence = cur_vblank;
@@ -156,6 +184,16 @@ int radeon_driver_vblank_wait(drm_device_t * dev, unsigned int *sequence)
        return ret;
 }
 
+int radeon_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence)
+{
+       return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC1);
+}
+
+int radeon_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence)
+{
+       return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC2);
+}
+
 /* Needs the lock as it touches the ring.
  */
 int radeon_irq_emit(DRM_IOCTL_ARGS)
@@ -204,9 +242,24 @@ int radeon_irq_wait(DRM_IOCTL_ARGS)
        return radeon_wait_irq(dev, irqwait.irq_seq);
 }
 
+static void radeon_enable_interrupt(struct drm_device *dev)
+{
+       drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
+
+       dev_priv->irq_enable_reg = RADEON_SW_INT_ENABLE;
+       if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC1)
+               dev_priv->irq_enable_reg |= RADEON_CRTC_VBLANK_MASK;
+
+       if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC2)
+               dev_priv->irq_enable_reg |= RADEON_CRTC2_VBLANK_MASK;
+
+       RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
+       dev_priv->irq_enabled = 1;
+}
+
 /* drm_dma.h hooks
 */
-void radeon_driver_irq_preinstall(drm_device_t * dev)
+void radeon_driver_irq_preinstall(struct drm_device * dev)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
@@ -216,10 +269,11 @@ void radeon_driver_irq_preinstall(drm_device_t * dev)
 
        /* Clear bits if they're already high */
        radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK |
-                                          RADEON_CRTC_VBLANK_STAT));
+                                          RADEON_CRTC_VBLANK_STAT |
+                                          RADEON_CRTC2_VBLANK_STAT));
 }
 
-void radeon_driver_irq_postinstall(drm_device_t * dev)
+void radeon_driver_irq_postinstall(struct drm_device * dev)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
@@ -227,18 +281,48 @@ void radeon_driver_irq_postinstall(drm_device_t * dev)
        atomic_set(&dev_priv->swi_emitted, 0);
        DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
 
-       /* Turn on SW and VBL ints */
-       RADEON_WRITE(RADEON_GEN_INT_CNTL,
-                    RADEON_CRTC_VBLANK_MASK | RADEON_SW_INT_ENABLE);
+       radeon_enable_interrupt(dev);
 }
 
-void radeon_driver_irq_uninstall(drm_device_t * dev)
+void radeon_driver_irq_uninstall(struct drm_device * dev)
 {
        drm_radeon_private_t *dev_priv =
            (drm_radeon_private_t *) dev->dev_private;
        if (!dev_priv)
                return;
 
+       dev_priv->irq_enabled = 0;
+
        /* Disable *all* interrupts */
        RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
 }
+
+
+int radeon_vblank_crtc_get(struct drm_device *dev)
+{
+       drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
+       u32 flag;
+       u32 value;
+
+       flag = RADEON_READ(RADEON_GEN_INT_CNTL);
+       value = 0;
+
+       if (flag & RADEON_CRTC_VBLANK_MASK)
+               value |= DRM_RADEON_VBLANK_CRTC1;
+
+       if (flag & RADEON_CRTC2_VBLANK_MASK)
+               value |= DRM_RADEON_VBLANK_CRTC2;
+       return value;
+}
+
+int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value)
+{
+       drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
+       if (value & ~(DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) {
+               DRM_ERROR("called with invalid crtc 0x%x\n", (unsigned int)value);
+               return DRM_ERR(EINVAL);
+       }
+       dev_priv->vblank_crtc = (unsigned int)value;
+       radeon_enable_interrupt(dev);
+       return 0;
+}