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path: root/drivers/gpu/drm/exynos/exynos_drm_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_crtc.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_crtc.c69
1 files changed, 36 insertions, 33 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index c47899738eb4..0872aa2f450f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -25,14 +25,9 @@ static void exynos_drm_crtc_enable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
- if (exynos_crtc->enabled)
- return;
-
if (exynos_crtc->ops->enable)
exynos_crtc->ops->enable(exynos_crtc);
- exynos_crtc->enabled = true;
-
drm_crtc_vblank_on(crtc);
}
@@ -40,20 +35,10 @@ static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
- if (!exynos_crtc->enabled)
- return;
-
- /* wait for the completion of page flip. */
- if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
- (exynos_crtc->event == NULL), HZ/20))
- exynos_crtc->event = NULL;
-
drm_crtc_vblank_off(crtc);
if (exynos_crtc->ops->disable)
exynos_crtc->ops->disable(exynos_crtc);
-
- exynos_crtc->enabled = false;
}
static bool
@@ -83,16 +68,32 @@ static void exynos_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ struct drm_plane *plane;
+
+ exynos_crtc->event = crtc->state->event;
- if (crtc->state->event) {
- WARN_ON(drm_crtc_vblank_get(crtc) != 0);
- exynos_crtc->event = crtc->state->event;
+ drm_atomic_crtc_for_each_plane(plane, crtc) {
+ struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+
+ if (exynos_crtc->ops->atomic_begin)
+ exynos_crtc->ops->atomic_begin(exynos_crtc,
+ exynos_plane);
}
}
static void exynos_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
+ struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
+ struct drm_plane *plane;
+
+ drm_atomic_crtc_for_each_plane(plane, crtc) {
+ struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
+
+ if (exynos_crtc->ops->atomic_flush)
+ exynos_crtc->ops->atomic_flush(exynos_crtc,
+ exynos_plane);
+ }
}
static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
@@ -140,13 +141,13 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
if (!exynos_crtc)
return ERR_PTR(-ENOMEM);
- init_waitqueue_head(&exynos_crtc->pending_flip_queue);
-
exynos_crtc->pipe = pipe;
exynos_crtc->type = type;
exynos_crtc->ops = ops;
exynos_crtc->ctx = ctx;
+ init_waitqueue_head(&exynos_crtc->wait_update);
+
crtc = &exynos_crtc->base;
private->crtc[pipe] = crtc;
@@ -172,9 +173,6 @@ int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);
- if (!exynos_crtc->enabled)
- return -EPERM;
-
if (exynos_crtc->ops->enable_vblank)
return exynos_crtc->ops->enable_vblank(exynos_crtc);
@@ -187,26 +185,31 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
struct exynos_drm_crtc *exynos_crtc =
to_exynos_crtc(private->crtc[pipe]);
- if (!exynos_crtc->enabled)
- return;
-
if (exynos_crtc->ops->disable_vblank)
exynos_crtc->ops->disable_vblank(exynos_crtc);
}
-void exynos_drm_crtc_finish_pageflip(struct exynos_drm_crtc *exynos_crtc)
+void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc *exynos_crtc)
+{
+ wait_event_timeout(exynos_crtc->wait_update,
+ (atomic_read(&exynos_crtc->pending_update) == 0),
+ msecs_to_jiffies(50));
+}
+
+void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
+ struct exynos_drm_plane *exynos_plane)
{
struct drm_crtc *crtc = &exynos_crtc->base;
unsigned long flags;
- spin_lock_irqsave(&crtc->dev->event_lock, flags);
- if (exynos_crtc->event) {
+ exynos_plane->pending_fb = NULL;
- drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
- drm_crtc_vblank_put(crtc);
- wake_up(&exynos_crtc->pending_flip_queue);
+ if (atomic_dec_and_test(&exynos_crtc->pending_update))
+ wake_up(&exynos_crtc->wait_update);
- }
+ spin_lock_irqsave(&crtc->dev->event_lock, flags);
+ if (exynos_crtc->event)
+ drm_crtc_send_vblank_event(crtc, exynos_crtc->event);
exynos_crtc->event = NULL;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);