Add helper macros to iterate the current, or incoming set of planes attached to a crtc. These helpers are only available for drivers converted to use atomic-helpers. Signed-off-by: Rob Clark <robdclark@gmail.com> [danvet: Squash in fixup from Rob to move the planemask iterator to drm_crtc.h and document it. That one is needed by the atomic ioctl so can't be in a helper library.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
		
			
				
	
	
		
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			126 lines
		
	
	
	
		
			5.1 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (C) 2014 Red Hat
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 * Copyright (C) 2014 Intel Corp.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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 * OTHER DEALINGS IN THE SOFTWARE.
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 *
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 * Authors:
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 * Rob Clark <robdclark@gmail.com>
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 * Daniel Vetter <daniel.vetter@ffwll.ch>
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 */
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#ifndef DRM_ATOMIC_HELPER_H_
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#define DRM_ATOMIC_HELPER_H_
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#include <drm/drm_crtc.h>
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int drm_atomic_helper_check(struct drm_device *dev,
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			    struct drm_atomic_state *state);
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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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					  struct drm_atomic_state *old_state);
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int drm_atomic_helper_prepare_planes(struct drm_device *dev,
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				     struct drm_atomic_state *state);
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void drm_atomic_helper_commit_planes(struct drm_device *dev,
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				     struct drm_atomic_state *state);
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void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
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				      struct drm_atomic_state *old_state);
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void drm_atomic_helper_swap_state(struct drm_device *dev,
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				  struct drm_atomic_state *state);
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/* implementations for legacy interfaces */
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int drm_atomic_helper_update_plane(struct drm_plane *plane,
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				   struct drm_crtc *crtc,
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				   struct drm_framebuffer *fb,
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				   int crtc_x, int crtc_y,
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				   unsigned int crtc_w, unsigned int crtc_h,
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				   uint32_t src_x, uint32_t src_y,
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				   uint32_t src_w, uint32_t src_h);
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int drm_atomic_helper_disable_plane(struct drm_plane *plane);
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int drm_atomic_helper_set_config(struct drm_mode_set *set);
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int drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc,
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					struct drm_property *property,
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					uint64_t val);
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int drm_atomic_helper_plane_set_property(struct drm_plane *plane,
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					struct drm_property *property,
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					uint64_t val);
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int drm_atomic_helper_connector_set_property(struct drm_connector *connector,
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					struct drm_property *property,
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					uint64_t val);
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int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
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				struct drm_framebuffer *fb,
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				struct drm_pending_vblank_event *event,
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				uint32_t flags);
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/* default implementations for state handling */
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void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);
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struct drm_crtc_state *
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drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc);
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void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc,
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					  struct drm_crtc_state *state);
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void drm_atomic_helper_plane_reset(struct drm_plane *plane);
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struct drm_plane_state *
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drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane);
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void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane,
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					  struct drm_plane_state *state);
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void drm_atomic_helper_connector_reset(struct drm_connector *connector);
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struct drm_connector_state *
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drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector);
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void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector,
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					  struct drm_connector_state *state);
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/**
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 * drm_atomic_crtc_for_each_plane - iterate over planes currently attached to CRTC
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 * @plane: the loop cursor
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 * @crtc:  the crtc whose planes are iterated
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 *
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 * This iterates over the current state, useful (for example) when applying
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 * atomic state after it has been checked and swapped.  To iterate over the
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 * planes which *will* be attached (for ->atomic_check()) see
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 * drm_crtc_for_each_pending_plane()
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 */
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#define drm_atomic_crtc_for_each_plane(plane, crtc) \
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	drm_for_each_plane_mask(plane, (crtc)->dev, (crtc)->state->plane_mask)
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/**
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 * drm_crtc_atomic_state_for_each_plane - iterate over attached planes in new state
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 * @plane: the loop cursor
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 * @crtc_state: the incoming crtc-state
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 *
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 * Similar to drm_crtc_for_each_plane(), but iterates the planes that will be
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 * attached if the specified state is applied.  Useful during (for example)
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 * ->atomic_check() operations, to validate the incoming state
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 */
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#define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \
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	drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask)
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#endif /* DRM_ATOMIC_HELPER_H_ */
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