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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
/*
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* Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef TEGRA_HUB_H
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#define TEGRA_HUB_H 1
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#include <drm/drmP.h>
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#include <drm/drm_plane.h>
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#include "plane.h"
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struct tegra_dc;
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struct tegra_windowgroup {
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unsigned int usecount;
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struct mutex lock;
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unsigned int index;
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struct device *parent;
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struct reset_control *rst;
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};
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struct tegra_shared_plane {
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struct tegra_plane base;
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struct tegra_windowgroup *wgrp;
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};
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static inline struct tegra_shared_plane *
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to_tegra_shared_plane(struct drm_plane *plane)
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{
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return container_of(plane, struct tegra_shared_plane, base.base);
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}
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struct tegra_display_hub_soc {
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unsigned int num_wgrps;
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bool supports_dsc;
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};
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struct tegra_display_hub {
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struct drm_private_obj base;
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struct host1x_client client;
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struct clk *clk_disp;
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struct clk *clk_dsc;
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struct clk *clk_hub;
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struct reset_control *rst;
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const struct tegra_display_hub_soc *soc;
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struct tegra_windowgroup *wgrps;
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};
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static inline struct tegra_display_hub *
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to_tegra_display_hub(struct host1x_client *client)
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{
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return container_of(client, struct tegra_display_hub, client);
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}
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struct tegra_display_hub_state {
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struct drm_private_state base;
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struct tegra_dc *dc;
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unsigned long rate;
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struct clk *clk;
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};
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static inline struct tegra_display_hub_state *
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to_tegra_display_hub_state(struct drm_private_state *priv)
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{
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return container_of(priv, struct tegra_display_hub_state, base);
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}
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struct tegra_dc;
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struct tegra_plane;
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int tegra_display_hub_prepare(struct tegra_display_hub *hub);
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void tegra_display_hub_cleanup(struct tegra_display_hub *hub);
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struct drm_plane *tegra_shared_plane_create(struct drm_device *drm,
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struct tegra_dc *dc,
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unsigned int wgrp,
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unsigned int index);
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int tegra_display_hub_atomic_check(struct drm_device *drm,
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struct drm_atomic_state *state);
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void tegra_display_hub_atomic_commit(struct drm_device *drm,
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struct drm_atomic_state *state);
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#define DC_CMD_IHUB_COMMON_MISC_CTL 0x068
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#define LATENCY_EVENT (1 << 3)
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#define DC_DISP_IHUB_COMMON_DISPLAY_FETCH_METER 0x451
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#define CURS_SLOTS(x) (((x) & 0xff) << 8)
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#define WGRP_SLOTS(x) (((x) & 0xff) << 0)
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#endif /* TEGRA_HUB_H */
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