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path: root/drivers/gpu/drm/drm_irq.c
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Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
-rw-r--r--drivers/gpu/drm/drm_irq.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index f5a5f18..2763010 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -904,6 +904,8 @@ static void send_vblank_event(struct drm_device *dev,
*
* Updates sequence # and timestamp on event, and sends it to userspace.
* Caller must hold event lock.
+ *
+ * This is the legacy version of drm_crtc_send_vblank_event().
*/
void drm_send_vblank_event(struct drm_device *dev, int crtc,
struct drm_pending_vblank_event *e)
@@ -923,6 +925,23 @@ void drm_send_vblank_event(struct drm_device *dev, int crtc,
EXPORT_SYMBOL(drm_send_vblank_event);
/**
+ * drm_crtc_send_vblank_event - helper to send vblank event after pageflip
+ * @crtc: the source CRTC of the vblank event
+ * @e: the event to send
+ *
+ * Updates sequence # and timestamp on event, and sends it to userspace.
+ * Caller must hold event lock.
+ *
+ * This is the native KMS version of drm_send_vblank_event().
+ */
+void drm_crtc_send_vblank_event(struct drm_crtc *crtc,
+ struct drm_pending_vblank_event *e)
+{
+ drm_send_vblank_event(crtc->dev, drm_crtc_index(crtc), e);
+}
+EXPORT_SYMBOL(drm_crtc_send_vblank_event);
+
+/**
* drm_vblank_enable - enable the vblank interrupt on a CRTC
* @dev: DRM device
* @crtc: CRTC in question