drm: export atomic wait_for_vblanks helper (v2)
v1: original v2: danvet's kerneldoc nitpicks Signed-off-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -754,8 +754,18 @@ static void wait_for_fences(struct drm_device *dev,
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}
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}
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static void
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wait_for_vblanks(struct drm_device *dev, struct drm_atomic_state *old_state)
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/**
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* drm_atomic_helper_wait_for_vblanks - wait for vblank on crtcs
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* @dev: DRM device
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* @old_state: atomic state object with old state structures
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*
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* Helper to, after atomic commit, wait for vblanks on all effected
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* crtcs (ie. before cleaning up old framebuffers using
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* drm_atomic_helper_cleanup_planes())
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*/
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void
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drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
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struct drm_atomic_state *old_state)
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{
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struct drm_crtc *crtc;
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struct drm_crtc_state *old_crtc_state;
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@ -800,6 +810,7 @@ wait_for_vblanks(struct drm_device *dev, struct drm_atomic_state *old_state)
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drm_crtc_vblank_put(crtc);
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}
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}
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EXPORT_SYMBOL(drm_atomic_helper_wait_for_vblanks);
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/**
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* drm_atomic_helper_commit - commit validated state object
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@ -859,7 +870,7 @@ int drm_atomic_helper_commit(struct drm_device *dev,
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drm_atomic_helper_commit_post_planes(dev, state);
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wait_for_vblanks(dev, state);
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drm_atomic_helper_wait_for_vblanks(dev, state);
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drm_atomic_helper_cleanup_planes(dev, state);
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@ -34,6 +34,9 @@ int drm_atomic_helper_commit(struct drm_device *dev,
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struct drm_atomic_state *state,
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bool async);
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void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
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struct drm_atomic_state *old_state);
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void drm_atomic_helper_commit_pre_planes(struct drm_device *dev,
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struct drm_atomic_state *state);
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void drm_atomic_helper_commit_post_planes(struct drm_device *dev,
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