If drm core requests a async commit, rockchip_drm_atomic_commit
will schedule a work task to update later.
Signed-off-by: Mark Yao <mark.yao at rock-chips.com>
---
drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 60 ++++++++++++++++++++++------
1 file changed, 47 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
index c86d93a..30ddf4a 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
@@ -29,6 +29,12 @@ struct rockchip_drm_fb {
struct drm_gem_object *obj[ROCKCHIP_MAX_FB_BUFFER];
};
+struct rockchip_atomic_commit {
+ struct work_struct work;
+ struct drm_device *dev;
+ struct drm_atomic_state *state;
+};
+
struct drm_gem_object *rockchip_fb_get_gem_obj(struct drm_framebuffer *fb,
unsigned int plane)
{
@@ -195,20 +201,11 @@ static void rockchip_atomic_wait_for_complete(struct
drm_atomic_state *state)
}
}
-int rockchip_drm_atomic_commit(struct drm_device *dev,
- struct drm_atomic_state *state,
- bool async)
+static void
+rockchip_atomic_commit_complete(struct rockchip_atomic_commit *commit)
{
- int ret;
-
- if (async)
- return -EBUSY;
-
- ret = drm_atomic_helper_prepare_planes(dev, state);
- if (ret)
- return ret;
-
- drm_atomic_helper_swap_state(dev, state);
+ struct drm_device *dev = commit->dev;
+ struct drm_atomic_state *state = commit->state;
/*
* TODO: do fence wait here.
@@ -226,6 +223,43 @@ int rockchip_drm_atomic_commit(struct drm_device *dev,
drm_atomic_state_free(state);
+ kfree(commit);
+}
+
+static void rockchip_drm_atomic_work(struct work_struct *work)
+{
+ struct rockchip_atomic_commit *commit = container_of(work,
+ struct rockchip_atomic_commit, work);
+
+ rockchip_atomic_commit_complete(commit);
+}
+
+int rockchip_drm_atomic_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool async)
+{
+ int ret;
+ struct rockchip_atomic_commit *commit;
+
+ ret = drm_atomic_helper_prepare_planes(dev, state);
+ if (ret)
+ return ret;
+
+ drm_atomic_helper_swap_state(dev, state);
+
+ commit = kzalloc(sizeof(*commit), GFP_KERNEL);
+ if (!commit)
+ return -ENOMEM;
+
+ INIT_WORK(&commit->work, rockchip_drm_atomic_work);
+ commit->dev = dev;
+ commit->state = state;
+
+ if (async)
+ schedule_work(&commit->work);
+ else
+ rockchip_atomic_commit_complete(commit);
+
return 0;
}
--
1.7.9.5
