Since nonblocking atomic commits are now supported, the driver can
now use drm_atomic_helper_commit().
Change-Id: I3e49872b0dc9e79ca652bec7e5cd29d912c86382
Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx>
---
drivers/gpu/drm/sti/sti_drv.c | 83 +------------------------------------------
drivers/gpu/drm/sti/sti_drv.h | 6 ----
2 files changed, 1 insertion(+), 88 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index ff71e25..9a9b9a2 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -150,52 +150,6 @@ static void sti_drm_dbg_cleanup(struct drm_minor *minor)
1, minor);
}
-static void sti_atomic_schedule(struct sti_private *private,
- struct drm_atomic_state *state)
-{
- private->commit.state = state;
- schedule_work(&private->commit.work);
-}
-
-static void sti_atomic_complete(struct sti_private *private,
- struct drm_atomic_state *state)
-{
- struct drm_device *drm = private->drm_dev;
-
- /*
- * Everything below can be run asynchronously without the need to grab
- * any modeset locks at all under one condition: It must be guaranteed
- * that the asynchronous work has either been cancelled (if the driver
- * supports it, which at least requires that the framebuffers get
- * cleaned up with drm_atomic_helper_cleanup_planes()) or completed
- * before the new state gets committed on the software side with
- * drm_atomic_helper_swap_state().
- *
- * This scheme allows new atomic state updates to be prepared and
- * checked in parallel to the asynchronous completion of the previous
- * update. Which is important since compositors need to figure out the
- * composition of the next frame right after having submitted the
- * current layout.
- */
-
- drm_atomic_helper_commit_modeset_disables(drm, state);
- drm_atomic_helper_commit_planes(drm, state, 0);
- drm_atomic_helper_commit_modeset_enables(drm, state);
-
- drm_atomic_helper_wait_for_vblanks(drm, state);
-
- drm_atomic_helper_cleanup_planes(drm, state);
- drm_atomic_state_put(state);
-}
-
-static void sti_atomic_work(struct work_struct *work)
-{
- struct sti_private *private = container_of(work,
- struct sti_private, commit.work);
-
- sti_atomic_complete(private, private->commit.state);
-}
-
static int sti_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state)
{
@@ -216,38 +170,6 @@ static int sti_atomic_check(struct drm_device *dev,
return ret;
}
-static int sti_atomic_commit(struct drm_device *drm,
- struct drm_atomic_state *state, bool nonblock)
-{
- struct sti_private *private = drm->dev_private;
- int err;
-
- err = drm_atomic_helper_prepare_planes(drm, state);
- if (err)
- return err;
-
- /* serialize outstanding nonblocking commits */
- mutex_lock(&private->commit.lock);
- flush_work(&private->commit.work);
-
- /*
- * This is the point of no return - everything below never fails except
- * when the hw goes bonghits. Which means we can commit the new state on
- * the software side now.
- */
-
- drm_atomic_helper_swap_state(state, true);
-
- drm_atomic_state_get(state);
- if (nonblock)
- sti_atomic_schedule(private, state);
- else
- sti_atomic_complete(private, state);
-
- mutex_unlock(&private->commit.lock);
- return 0;
-}
-
static void sti_output_poll_changed(struct drm_device *ddev)
{
struct sti_private *private = ddev->dev_private;
@@ -271,7 +193,7 @@ static const struct drm_mode_config_funcs sti_mode_config_funcs = {
.fb_create = drm_fb_cma_create,
.output_poll_changed = sti_output_poll_changed,
.atomic_check = sti_atomic_check,
- .atomic_commit = sti_atomic_commit,
+ .atomic_commit = drm_atomic_helper_commit,
};
static void sti_mode_config_init(struct drm_device *dev)
@@ -352,9 +274,6 @@ static int sti_init(struct drm_device *ddev)
dev_set_drvdata(ddev->dev, ddev);
private->drm_dev = ddev;
- mutex_init(&private->commit.lock);
- INIT_WORK(&private->commit.work, sti_atomic_work);
-
drm_mode_config_init(ddev);
sti_mode_config_init(ddev);
diff --git a/drivers/gpu/drm/sti/sti_drv.h b/drivers/gpu/drm/sti/sti_drv.h
index 78ebe5e..f9276cd 100644
--- a/drivers/gpu/drm/sti/sti_drv.h
+++ b/drivers/gpu/drm/sti/sti_drv.h
@@ -25,12 +25,6 @@ struct sti_private {
struct drm_property *plane_zorder_property;
struct drm_device *drm_dev;
struct drm_fbdev_cma *fbdev;
-
- struct {
- struct drm_atomic_state *state;
- struct work_struct work;
- struct mutex lock;
- } commit;
};
extern struct platform_driver sti_tvout_driver;
--
2.7.4
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