mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 16:55:13 +07:00
d46a4e93ea
The rcar_du_vsp_plane_prepare_fb() and rcar_du_vsp_plane_cleanup_fb() functions implement the DRM plane .prepare_fb() and .cleanup_fb() operations. They map and unmap the framebuffer to/from the VSP internally, which will be useful to implement writeback support. Split the mapping and unmapping out to separate functions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
|
|
*
|
|
* Copyright (C) 2015 Renesas Electronics Corporation
|
|
*
|
|
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
|
|
*/
|
|
|
|
#ifndef __RCAR_DU_VSP_H__
|
|
#define __RCAR_DU_VSP_H__
|
|
|
|
#include <drm/drm_plane.h>
|
|
|
|
struct drm_framebuffer;
|
|
struct rcar_du_format_info;
|
|
struct rcar_du_vsp;
|
|
struct sg_table;
|
|
|
|
struct rcar_du_vsp_plane {
|
|
struct drm_plane plane;
|
|
struct rcar_du_vsp *vsp;
|
|
unsigned int index;
|
|
};
|
|
|
|
struct rcar_du_vsp {
|
|
unsigned int index;
|
|
struct device *vsp;
|
|
struct rcar_du_device *dev;
|
|
struct rcar_du_vsp_plane *planes;
|
|
unsigned int num_planes;
|
|
};
|
|
|
|
static inline struct rcar_du_vsp_plane *to_rcar_vsp_plane(struct drm_plane *p)
|
|
{
|
|
return container_of(p, struct rcar_du_vsp_plane, plane);
|
|
}
|
|
|
|
/**
|
|
* struct rcar_du_vsp_plane_state - Driver-specific plane state
|
|
* @state: base DRM plane state
|
|
* @format: information about the pixel format used by the plane
|
|
* @sg_tables: scatter-gather tables for the frame buffer memory
|
|
*/
|
|
struct rcar_du_vsp_plane_state {
|
|
struct drm_plane_state state;
|
|
|
|
const struct rcar_du_format_info *format;
|
|
struct sg_table sg_tables[3];
|
|
};
|
|
|
|
static inline struct rcar_du_vsp_plane_state *
|
|
to_rcar_vsp_plane_state(struct drm_plane_state *state)
|
|
{
|
|
return container_of(state, struct rcar_du_vsp_plane_state, state);
|
|
}
|
|
|
|
#ifdef CONFIG_DRM_RCAR_VSP
|
|
int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
|
|
unsigned int crtcs);
|
|
void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
|
|
void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
|
|
void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc);
|
|
void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc);
|
|
int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
|
|
struct sg_table sg_tables[3]);
|
|
void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
|
|
struct sg_table sg_tables[3]);
|
|
#else
|
|
static inline int rcar_du_vsp_init(struct rcar_du_vsp *vsp,
|
|
struct device_node *np,
|
|
unsigned int crtcs)
|
|
{
|
|
return -ENXIO;
|
|
}
|
|
static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
|
|
static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
|
|
static inline void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) { };
|
|
static inline void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc) { };
|
|
static inline int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp,
|
|
struct drm_framebuffer *fb,
|
|
struct sg_table sg_tables[3])
|
|
{
|
|
return -ENXIO;
|
|
}
|
|
static inline void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp,
|
|
struct drm_framebuffer *fb,
|
|
struct sg_table sg_tables[3])
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#endif /* __RCAR_DU_VSP_H__ */
|