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drm/atomic: export drm_atomic_helper_wait_for_fences()

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Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1458342904-23326-3-git-send-email-robdclark@gmail.com
This commit is contained in:
Rob Clark 2016-03-18 19:14:55 -04:00 committed by Daniel Vetter
parent 00c9672606
commit 4c5b7f3ae5
2 changed files with 15 additions and 2 deletions
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15
drivers/gpu/drm/drm_atomic_helper.c
View file

@ -984,7 +984,17 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables);
static void wait_for_fences(struct drm_device *dev,
/**
* drm_atomic_helper_wait_for_fences - wait for fences stashed in plane state
* @dev: DRM device
* @state: atomic state object with old state structures
*
* For implicit sync, driver should fish the exclusive fence out from the
* incoming fb's and stash it in the drm_plane_state. This is called after
* drm_atomic_helper_swap_state() so it uses the current plane state (and
* just uses the atomic state to find the changed planes)
*/
void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
struct drm_atomic_state *state)
{
struct drm_plane *plane;
@ -1002,6 +1012,7 @@ static void wait_for_fences(struct drm_device *dev,
plane->state->fence = NULL;
}
}
EXPORT_SYMBOL(drm_atomic_helper_wait_for_fences);
/**
* drm_atomic_helper_framebuffer_changed - check if framebuffer has changed
@ -1163,7 +1174,7 @@ int drm_atomic_helper_commit(struct drm_device *dev,
* current layout.
*/
wait_for_fences(dev, state);
drm_atomic_helper_wait_for_fences(dev, state);
drm_atomic_helper_commit_modeset_disables(dev, state);

2
include/drm/drm_atomic_helper.h
View file

@ -42,6 +42,8 @@ int drm_atomic_helper_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool async);
void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
struct drm_atomic_state *state);
bool drm_atomic_helper_framebuffer_changed(struct drm_device *dev,
struct drm_atomic_state *old_state,
struct drm_crtc *crtc);