cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

rcar_du_vsp.h (2708B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * rcar_du_vsp.h  --  R-Car Display Unit VSP-Based Compositor
      4 *
      5 * Copyright (C) 2015 Renesas Electronics Corporation
      6 *
      7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
      8 */
      9
     10#ifndef __RCAR_DU_VSP_H__
     11#define __RCAR_DU_VSP_H__
     12
     13#include <drm/drm_plane.h>
     14
     15struct drm_framebuffer;
     16struct rcar_du_format_info;
     17struct rcar_du_vsp;
     18struct sg_table;
     19
     20struct rcar_du_vsp_plane {
     21	struct drm_plane plane;
     22	struct rcar_du_vsp *vsp;
     23	unsigned int index;
     24};
     25
     26struct rcar_du_vsp {
     27	unsigned int index;
     28	struct device *vsp;
     29	struct rcar_du_device *dev;
     30	struct rcar_du_vsp_plane *planes;
     31	unsigned int num_planes;
     32};
     33
     34static inline struct rcar_du_vsp_plane *to_rcar_vsp_plane(struct drm_plane *p)
     35{
     36	return container_of(p, struct rcar_du_vsp_plane, plane);
     37}
     38
     39/**
     40 * struct rcar_du_vsp_plane_state - Driver-specific plane state
     41 * @state: base DRM plane state
     42 * @format: information about the pixel format used by the plane
     43 * @sg_tables: scatter-gather tables for the frame buffer memory
     44 */
     45struct rcar_du_vsp_plane_state {
     46	struct drm_plane_state state;
     47
     48	const struct rcar_du_format_info *format;
     49	struct sg_table sg_tables[3];
     50};
     51
     52static inline struct rcar_du_vsp_plane_state *
     53to_rcar_vsp_plane_state(struct drm_plane_state *state)
     54{
     55	return container_of(state, struct rcar_du_vsp_plane_state, state);
     56}
     57
     58#ifdef CONFIG_DRM_RCAR_VSP
     59int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
     60		     unsigned int crtcs);
     61void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
     62void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
     63void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc);
     64void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc);
     65int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
     66		       struct sg_table sg_tables[3]);
     67void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
     68			  struct sg_table sg_tables[3]);
     69#else
     70static inline int rcar_du_vsp_init(struct rcar_du_vsp *vsp,
     71				   struct device_node *np,
     72				   unsigned int crtcs)
     73{
     74	return -ENXIO;
     75}
     76static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
     77static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
     78static inline void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) { };
     79static inline void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc) { };
     80static inline int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp,
     81				     struct drm_framebuffer *fb,
     82				     struct sg_table sg_tables[3])
     83{
     84	return -ENXIO;
     85}
     86static inline void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp,
     87					struct drm_framebuffer *fb,
     88					struct sg_table sg_tables[3])
     89{
     90}
     91#endif
     92
     93#endif /* __RCAR_DU_VSP_H__ */