cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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rcar_du_plane.h (2322B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * rcar_du_plane.h  --  R-Car Display Unit Planes
      4 *
      5 * Copyright (C) 2013-2014 Renesas Electronics Corporation
      6 *
      7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
      8 */
      9
     10#ifndef __RCAR_DU_PLANE_H__
     11#define __RCAR_DU_PLANE_H__
     12
     13#include <drm/drm_plane.h>
     14
     15struct rcar_du_format_info;
     16struct rcar_du_group;
     17
     18/*
     19 * The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
     20 * As using overlay planes requires at least one of the CRTCs being enabled, no
     21 * more than 7 overlay planes can be available. We thus create 1 primary plane
     22 * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
     23 */
     24#define RCAR_DU_NUM_KMS_PLANES		9
     25#define RCAR_DU_NUM_HW_PLANES		8
     26
     27enum rcar_du_plane_source {
     28	RCAR_DU_PLANE_MEMORY,
     29	RCAR_DU_PLANE_VSPD0,
     30	RCAR_DU_PLANE_VSPD1,
     31};
     32
     33struct rcar_du_plane {
     34	struct drm_plane plane;
     35	struct rcar_du_group *group;
     36};
     37
     38static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)
     39{
     40	return container_of(plane, struct rcar_du_plane, plane);
     41}
     42
     43/**
     44 * struct rcar_du_plane_state - Driver-specific plane state
     45 * @state: base DRM plane state
     46 * @format: information about the pixel format used by the plane
     47 * @hwindex: 0-based hardware plane index, -1 means unused
     48 * @colorkey: value of the plane colorkey property
     49 */
     50struct rcar_du_plane_state {
     51	struct drm_plane_state state;
     52
     53	const struct rcar_du_format_info *format;
     54	int hwindex;
     55	enum rcar_du_plane_source source;
     56
     57	unsigned int colorkey;
     58};
     59
     60static inline struct rcar_du_plane_state *
     61to_rcar_plane_state(struct drm_plane_state *state)
     62{
     63	return container_of(state, struct rcar_du_plane_state, state);
     64}
     65
     66int rcar_du_atomic_check_planes(struct drm_device *dev,
     67				struct drm_atomic_state *state);
     68
     69int __rcar_du_plane_atomic_check(struct drm_plane *plane,
     70				 struct drm_plane_state *state,
     71				 const struct rcar_du_format_info **format);
     72
     73int rcar_du_planes_init(struct rcar_du_group *rgrp);
     74
     75void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
     76			   const struct rcar_du_plane_state *state);
     77
     78static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)
     79{
     80	struct rcar_du_plane_state *state =
     81		to_rcar_plane_state(plane->plane.state);
     82
     83	return __rcar_du_plane_setup(plane->group, state);
     84}
     85
     86#endif /* __RCAR_DU_PLANE_H__ */