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authorChristian König <christian.koenig@amd.com>2014-05-27 16:49:21 +0200
committerAlex Deucher <alexander.deucher@amd.com>2014-06-02 10:25:12 -0400
commit1a0e79184132c5dc0e03a4047eacecc52c24deae (patch)
tree38211a82699c5a0c38c5b14a29d95bfebba14be4 /drivers/gpu/drm/radeon/radeon_display.c
parent157fa14dc4065ce7536473e643c95385d87bd580 (diff)
drm/radeon: separate vblank and pflip crtc handling
Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index c52c18246ed..88e3cbe11da 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -276,7 +276,7 @@ static void radeon_unpin_work_func(struct work_struct *__work)
kfree(work);
}
-void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
+void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id)
{
struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
struct radeon_unpin_work *work;
@@ -302,7 +302,6 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
* completion routine.
*/
update_pending = 0;
- radeon_crtc->deferred_flip_completion = 0;
}
/* Has the pageflip already completed in crtc, or is it certain
@@ -330,10 +329,40 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
radeon_crtc->deferred_flip_completion = 1;
spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
return;
+ } else {
+ spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
+ radeon_crtc_handle_flip(rdev, crtc_id);
+ }
+}
+
+/**
+ * radeon_crtc_handle_flip - page flip completed
+ *
+ * @rdev: radeon device pointer
+ * @crtc_id: crtc number this event is for
+ *
+ * Called when we are sure that a page flip for this crtc is completed.
+ */
+void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
+{
+ struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
+ struct radeon_unpin_work *work;
+ unsigned long flags;
+
+ /* this can happen at init */
+ if (radeon_crtc == NULL)
+ return;
+
+ spin_lock_irqsave(&rdev->ddev->event_lock, flags);
+ work = radeon_crtc->unpin_work;
+ if (work == NULL) {
+ spin_unlock_irqrestore(&rdev->ddev->event_lock, flags);
+ return;
}
/* Pageflip (will be) certainly completed in this vblank. Clean up. */
radeon_crtc->unpin_work = NULL;
+ radeon_crtc->deferred_flip_completion = 0;
/* wakeup userspace */
if (work->event)