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path: root/drivers/gpu/drm/msm/msm_atomic.c
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Diffstat (limited to 'drivers/gpu/drm/msm/msm_atomic.c')
-rw-r--r--drivers/gpu/drm/msm/msm_atomic.c42
1 files changed, 20 insertions, 22 deletions
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 6ac7192d0ad6..e3892c263f27 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -107,27 +107,6 @@ static void msm_atomic_wait_for_commit_done(struct drm_device *dev,
}
}
-static void wait_fences(struct msm_commit *c, bool async)
-{
- int nplanes = c->dev->mode_config.num_total_plane;
- ktime_t timeout = ktime_add_ms(ktime_get(), 1000);
- int i;
-
- for (i = 0; i < nplanes; i++) {
- struct drm_plane *plane = c->state->planes[i];
- struct drm_plane_state *new_state = c->state->plane_states[i];
-
- if (!plane)
- continue;
-
- if ((plane->state->fb != new_state->fb) && new_state->fb) {
- struct drm_gem_object *obj =
- msm_framebuffer_bo(new_state->fb, 0);
- msm_gem_cpu_sync(obj, MSM_PREP_READ, &timeout);
- }
- }
-}
-
/* The (potentially) asynchronous part of the commit. At this point
* nothing can fail short of armageddon.
*/
@@ -138,7 +117,7 @@ static void complete_commit(struct msm_commit *c, bool async)
struct msm_drm_private *priv = dev->dev_private;
struct msm_kms *kms = priv->kms;
- wait_fences(c, async);
+ drm_atomic_helper_wait_for_fences(dev, state);
kms->funcs->prepare_commit(kms, state);
@@ -213,6 +192,7 @@ int msm_atomic_commit(struct drm_device *dev,
struct drm_atomic_state *state, bool nonblock)
{
struct msm_drm_private *priv = dev->dev_private;
+ int nplanes = dev->mode_config.num_total_plane;
int ncrtcs = dev->mode_config.num_crtc;
struct msm_commit *c;
int i, ret;
@@ -238,6 +218,24 @@ int msm_atomic_commit(struct drm_device *dev,
}
/*
+ * Figure out what fence to wait for:
+ */
+ for (i = 0; i < nplanes; i++) {
+ struct drm_plane *plane = state->planes[i];
+ struct drm_plane_state *new_state = state->plane_states[i];
+
+ if (!plane)
+ continue;
+
+ if ((plane->state->fb != new_state->fb) && new_state->fb) {
+ struct drm_gem_object *obj = msm_framebuffer_bo(new_state->fb, 0);
+ struct msm_gem_object *msm_obj = to_msm_bo(obj);
+
+ new_state->fence = reservation_object_get_excl_rcu(msm_obj->resv);
+ }
+ }
+
+ /*
* Wait for pending updates on any of the same crtc's and then
* mark our set of crtc's as busy:
*/