1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2017 The Linux Foundation. All rights reserved.
4  */
5 
6 #ifndef __MDP5_LM_H__
7 #define __MDP5_LM_H__
8 
9 /* represents a hw Layer Mixer, one (or more) is dynamically assigned to a crtc */
10 struct mdp5_hw_mixer {
11 	int idx;
12 
13 	const char *name;
14 
15 	int lm;			/* the LM instance # */
16 	uint32_t caps;
17 	int pp;
18 	int dspp;
19 
20 	uint32_t flush_mask;      /* used to commit LM registers */
21 };
22 
23 /* global atomic state of assignment between CRTCs and Layer Mixers: */
24 struct mdp5_hw_mixer_state {
25 	struct drm_crtc *hwmixer_to_crtc[8];
26 };
27 
28 struct mdp5_hw_mixer *mdp5_mixer_init(const struct mdp5_lm_instance *lm);
29 void mdp5_mixer_destroy(struct mdp5_hw_mixer *lm);
30 int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc,
31 		      uint32_t caps, struct mdp5_hw_mixer **mixer,
32 		      struct mdp5_hw_mixer **r_mixer);
33 void mdp5_mixer_release(struct drm_atomic_state *s,
34 			struct mdp5_hw_mixer *mixer);
35 
36 #endif /* __MDP5_LM_H__ */
37