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authorMichel Dänzer <michel@tungstengraphics.com>2007-06-15 10:49:16 +0200
committerMichel Dänzer <michel@tungstengraphics.com>2007-06-15 10:50:22 +0200
commitfbee089aca727c92e0aa5d7a2ae7a8c5cf9c3076 (patch)
tree8ce11d41abb11cceef63a578313c651a1b0335f1
parent82e2c3304d3f1697537b73a2c888c8c6b1b6cdc8 (diff)
Make vblank waitqueue per CRTC.
-rw-r--r--linux-core/drmP.h2
-rw-r--r--linux-core/drm_irq.c15
2 files changed, 12 insertions, 5 deletions
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index b6cc7cb1..5bc8a6c7 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -824,7 +824,7 @@ typedef struct drm_device {
/** \name VBLANK IRQ support */
/*@{ */
- wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
+ wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
spinlock_t vbl_lock;
struct list_head *vbl_sigs; /**< signal list to send on VBLANK */
diff --git a/linux-core/drm_irq.c b/linux-core/drm_irq.c
index 3dcde9a5..f673a97c 100644
--- a/linux-core/drm_irq.c
+++ b/linux-core/drm_irq.c
@@ -81,11 +81,15 @@ int drm_vblank_init(drm_device_t *dev, int num_crtcs)
{
int i, ret = -ENOMEM;
- init_waitqueue_head(&dev->vbl_queue);
spin_lock_init(&dev->vbl_lock);
atomic_set(&dev->vbl_signal_pending, 0);
dev->num_crtcs = num_crtcs;
+ dev->vbl_queue = drm_alloc(sizeof(wait_queue_head_t) * num_crtcs,
+ DRM_MEM_DRIVER);
+ if (!dev->vbl_queue)
+ goto err;
+
dev->vbl_sigs = drm_alloc(sizeof(struct list_head) * num_crtcs,
DRM_MEM_DRIVER);
if (!dev->vbl_sigs)
@@ -118,6 +122,7 @@ int drm_vblank_init(drm_device_t *dev, int num_crtcs)
/* Zero per-crtc vblank stuff */
for (i = 0; i < num_crtcs; i++) {
+ init_waitqueue_head(&dev->vbl_queue[i]);
INIT_LIST_HEAD(&dev->vbl_sigs[i]);
atomic_set(&dev->_vblank_count[i], 0);
atomic_set(&dev->vblank_refcount[i], 0);
@@ -129,6 +134,8 @@ int drm_vblank_init(drm_device_t *dev, int num_crtcs)
return 0;
err:
+ drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * num_crtcs,
+ DRM_MEM_DRIVER);
drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * num_crtcs,
DRM_MEM_DRIVER);
drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) * num_crtcs,
@@ -150,7 +157,7 @@ EXPORT_SYMBOL(drm_vblank_init);
*
* \param dev DRM device.
*
- * Initializes the IRQ related data, and setups drm_device::vbl_queue. Installs the handler, calling the driver
+ * Initializes the IRQ related data. Installs the handler, calling the driver
* \c drm_driver_irq_preinstall() and \c drm_driver_irq_postinstall() functions
* before and after the installation.
*/
@@ -549,7 +556,7 @@ int drm_wait_vblank(DRM_IOCTL_ARGS)
ret = drm_vblank_get(dev, crtc);
if (ret)
return ret;
- DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
+ DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
(((cur_vblank = drm_vblank_count(dev, crtc))
- seq) <= (1 << 23)));
drm_vblank_put(dev, crtc);
@@ -617,7 +624,7 @@ static void drm_vbl_send_signals(drm_device_t * dev, int crtc)
void drm_handle_vblank(drm_device_t *dev, int crtc)
{
drm_update_vblank_count(dev, crtc);
- DRM_WAKEUP(&dev->vbl_queue);
+ DRM_WAKEUP(&dev->vbl_queue[crtc]);
drm_vbl_send_signals(dev, crtc);
}
EXPORT_SYMBOL(drm_handle_vblank);