mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
5725daaab5
The display hub integrated into Tegra194 is almost identical to the one found on Tegra186. However, it doesn't support DSC (display stream compression) so it isn't fully compatible. Signed-off-by: Thierry Reding <treding@nvidia.com>
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef TEGRA_HUB_H
|
|
#define TEGRA_HUB_H 1
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_plane.h>
|
|
|
|
#include "plane.h"
|
|
|
|
struct tegra_dc;
|
|
|
|
struct tegra_windowgroup {
|
|
unsigned int usecount;
|
|
struct mutex lock;
|
|
|
|
unsigned int index;
|
|
struct device *parent;
|
|
struct reset_control *rst;
|
|
};
|
|
|
|
struct tegra_shared_plane {
|
|
struct tegra_plane base;
|
|
struct tegra_windowgroup *wgrp;
|
|
};
|
|
|
|
static inline struct tegra_shared_plane *
|
|
to_tegra_shared_plane(struct drm_plane *plane)
|
|
{
|
|
return container_of(plane, struct tegra_shared_plane, base.base);
|
|
}
|
|
|
|
struct tegra_display_hub_soc {
|
|
unsigned int num_wgrps;
|
|
bool supports_dsc;
|
|
};
|
|
|
|
struct tegra_display_hub {
|
|
struct drm_private_obj base;
|
|
struct host1x_client client;
|
|
struct clk *clk_disp;
|
|
struct clk *clk_dsc;
|
|
struct clk *clk_hub;
|
|
struct reset_control *rst;
|
|
|
|
const struct tegra_display_hub_soc *soc;
|
|
struct tegra_windowgroup *wgrps;
|
|
};
|
|
|
|
static inline struct tegra_display_hub *
|
|
to_tegra_display_hub(struct host1x_client *client)
|
|
{
|
|
return container_of(client, struct tegra_display_hub, client);
|
|
}
|
|
|
|
struct tegra_display_hub_state {
|
|
struct drm_private_state base;
|
|
|
|
struct tegra_dc *dc;
|
|
unsigned long rate;
|
|
struct clk *clk;
|
|
};
|
|
|
|
static inline struct tegra_display_hub_state *
|
|
to_tegra_display_hub_state(struct drm_private_state *priv)
|
|
{
|
|
return container_of(priv, struct tegra_display_hub_state, base);
|
|
}
|
|
|
|
struct tegra_dc;
|
|
struct tegra_plane;
|
|
|
|
int tegra_display_hub_prepare(struct tegra_display_hub *hub);
|
|
void tegra_display_hub_cleanup(struct tegra_display_hub *hub);
|
|
|
|
struct drm_plane *tegra_shared_plane_create(struct drm_device *drm,
|
|
struct tegra_dc *dc,
|
|
unsigned int wgrp,
|
|
unsigned int index);
|
|
|
|
int tegra_display_hub_atomic_check(struct drm_device *drm,
|
|
struct drm_atomic_state *state);
|
|
void tegra_display_hub_atomic_commit(struct drm_device *drm,
|
|
struct drm_atomic_state *state);
|
|
|
|
#define DC_CMD_IHUB_COMMON_MISC_CTL 0x068
|
|
#define LATENCY_EVENT (1 << 3)
|
|
|
|
#define DC_DISP_IHUB_COMMON_DISPLAY_FETCH_METER 0x451
|
|
#define CURS_SLOTS(x) (((x) & 0xff) << 8)
|
|
#define WGRP_SLOTS(x) (((x) & 0xff) << 0)
|
|
|
|
#endif /* TEGRA_HUB_H */
|