drm: Create drm_send_event helpers

Use them in the core vblank code and exynos/vmwgfx drivers.

Note that the difference between wake_up_all and _interruptible in
vmwgfx doesn't matter since the only waiter is the core code in
drm_fops.c. And that is interruptible.

v2: Adjust existing kerneldoc too.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Acked-by: Daniel Stone <daniels@collabora.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Inki Dae <inki.dae@samsung.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-6-git-send-email-daniel.vetter@ffwll.ch
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[danvet: Squash in compile fixup, spotted by 0-day.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index d12a4efa651b..4ec8bca643ac 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -983,15 +983,12 @@ static void send_vblank_event(struct drm_device *dev,
                 struct drm_pending_vblank_event *e,
                 unsigned long seq, struct timeval *now)
 {
-        assert_spin_locked(&dev->event_lock);
-
         e->event.sequence = seq;
         e->event.tv_sec = now->tv_sec;
         e->event.tv_usec = now->tv_usec;
 
-        list_add_tail(&e->base.link,
-                      &e->base.file_priv->event_list);
-        wake_up_interruptible(&e->base.file_priv->event_wait);
+        drm_send_event_locked(dev, &e->base);
+
         trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
                                          e->event.sequence);
 }