ubuntu-linux-kernel/drivers/gpu/drm/msm/mdp/mdp5/mdp5_mixer.h

48 lines
1.5 KiB
C

/*
* Copyright (C) 2017 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MDP5_LM_H__
#define __MDP5_LM_H__
/* represents a hw Layer Mixer, one (or more) is dynamically assigned to a crtc */
struct mdp5_hw_mixer {
int idx;
const char *name;
int lm; /* the LM instance # */
uint32_t caps;
int pp;
int dspp;
uint32_t flush_mask; /* used to commit LM registers */
};
/* global atomic state of assignment between CRTCs and Layer Mixers: */
struct mdp5_hw_mixer_state {
struct drm_crtc *hwmixer_to_crtc[8];
};
struct mdp5_hw_mixer *mdp5_mixer_init(const struct mdp5_lm_instance *lm);
void mdp5_mixer_destroy(struct mdp5_hw_mixer *lm);
int mdp5_mixer_assign(struct drm_atomic_state *s, struct drm_crtc *crtc,
uint32_t caps, struct mdp5_hw_mixer **mixer,
struct mdp5_hw_mixer **r_mixer);
void mdp5_mixer_release(struct drm_atomic_state *s,
struct mdp5_hw_mixer *mixer);
#endif /* __MDP5_LM_H__ */