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linux/drivers/gpu/drm/rcar-du/rcar_du_group.h

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drm/rcar-du: Introduce CRTCs groups The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending unit, timings generator, ...) and device-global resources (start/stop control, planes, ...) shared between the two CRTCs. The R8A7790 introduced a third CRTC with its own set of global resources This would be modeled as two separate DU device instances if it wasn't for a handful or resources that are shared between the three CRTCs (mostly related to input and output routing). For this reason the R8A7790 DU must be modeled as a single device with three CRTCs, two sets of "semi-global" resources, and a few device-global resources. Introduce a new rcar_du_group driver-specific object, without any real counterpart in the DU documentation, that models those semi-global resources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-06-17 03:01:02 +08:00
/*
* rcar_du_group.c -- R-Car Display Unit Planes and CRTCs Group
*
* Copyright (C) 2013 Renesas Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __RCAR_DU_GROUP_H__
#define __RCAR_DU_GROUP_H__
#include "rcar_du_plane.h"
struct rcar_du_device;
/*
* struct rcar_du_group - CRTCs and planes group
* @dev: the DU device
* @mmio_offset: registers offset in the device memory map
* @index: group index
* @use_count: number of users of the group (rcar_du_group_(get|put))
* @used_crtcs: number of CRTCs currently in use
* @planes: planes handled by the group
*/
struct rcar_du_group {
struct rcar_du_device *dev;
unsigned int mmio_offset;
unsigned int index;
unsigned int use_count;
unsigned int used_crtcs;
struct rcar_du_planes planes;
};
drm/rcar-du: Add support for multiple groups The R8A7790 DU has 3 CRTCs, split in two groups. Support them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-06-17 06:29:25 +08:00
u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
drm/rcar-du: Introduce CRTCs groups The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending unit, timings generator, ...) and device-global resources (start/stop control, planes, ...) shared between the two CRTCs. The R8A7790 introduced a third CRTC with its own set of global resources This would be modeled as two separate DU device instances if it wasn't for a handful or resources that are shared between the three CRTCs (mostly related to input and output routing). For this reason the R8A7790 DU must be modeled as a single device with three CRTCs, two sets of "semi-global" resources, and a few device-global resources. Introduce a new rcar_du_group driver-specific object, without any real counterpart in the DU documentation, that models those semi-global resources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-06-17 03:01:02 +08:00
int rcar_du_group_get(struct rcar_du_group *rgrp);
void rcar_du_group_put(struct rcar_du_group *rgrp);
void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
void rcar_du_group_restart(struct rcar_du_group *rgrp);
drm/rcar-du: Move output routing configuration to group Output routing is configured in group registers, move the corresponding code from rcar_du_crtc.c to rcar_du_group.c. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-06-17 06:11:05 +08:00
void rcar_du_group_set_routing(struct rcar_du_group *rgrp);
drm/rcar-du: Introduce CRTCs groups The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending unit, timings generator, ...) and device-global resources (start/stop control, planes, ...) shared between the two CRTCs. The R8A7790 introduced a third CRTC with its own set of global resources This would be modeled as two separate DU device instances if it wasn't for a handful or resources that are shared between the three CRTCs (mostly related to input and output routing). For this reason the R8A7790 DU must be modeled as a single device with three CRTCs, two sets of "semi-global" resources, and a few device-global resources. Introduce a new rcar_du_group driver-specific object, without any real counterpart in the DU documentation, that models those semi-global resources. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2013-06-17 03:01:02 +08:00
#endif /* __RCAR_DU_GROUP_H__ */