drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.h

   1 /*
   2  * Copyright (C) 2016 Red Hat
   3  * Author: Rob Clark <robdclark@gmail.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __MDP5_PIPE_H__
  19 #define __MDP5_PIPE_H__
  20
  21 #define SSPP_MAX        (SSPP_RGB3 + 1) /* TODO: Add SSPP_MAX in mdp5.xml.h */
  22
  23 /* represents a hw pipe, which is dynamically assigned to a plane */
  24 struct mdp5_hw_pipe {
  25         int idx;
  26
  27         const char *name;
  28         enum mdp5_pipe pipe;
  29
  30         spinlock_t pipe_lock;     /* protect REG_MDP5_PIPE_* registers */
  31         uint32_t reg_offset;
  32         uint32_t caps;
  33
  34         uint32_t flush_mask;      /* used to commit pipe registers */
  35
  36         /* number of smp blocks per plane, ie:
  37          *   nblks_y | (nblks_u << 8) | (nblks_v << 16)
  38          */
  39         uint32_t blkcfg;
  40 };
  41
  42 /* global atomic state of assignment between pipes and planes: */
  43 struct mdp5_hw_pipe_state {
  44         struct drm_plane *hwpipe_to_plane[SSPP_MAX];
  45 };
  46
  47 struct mdp5_hw_pipe *__must_check
  48 mdp5_pipe_assign(struct drm_atomic_state *s, struct drm_plane *plane,
  49                 uint32_t caps, uint32_t blkcfg);
  50 void mdp5_pipe_release(struct drm_atomic_state *s, struct mdp5_hw_pipe *hwpipe);
  51
  52 struct mdp5_hw_pipe *mdp5_pipe_init(enum mdp5_pipe pipe,
  53                 uint32_t reg_offset, uint32_t caps);
  54 void mdp5_pipe_destroy(struct mdp5_hw_pipe *hwpipe);
  55
  56 #endif /* __MDP5_PIPE_H__ */