1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2017 NVIDIA CORPORATION. All rights reserved. 4 */ 5 6 #ifndef TEGRA_HUB_H 7 #define TEGRA_HUB_H 1 8 9 #include <drm/drm_plane.h> 10 11 #include "plane.h" 12 13 struct tegra_dc; 14 15 struct tegra_windowgroup { 16 unsigned int usecount; 17 struct mutex lock; 18 19 unsigned int index; 20 struct host1x_client *parent; 21 struct reset_control *rst; 22 }; 23 24 struct tegra_shared_plane { 25 struct tegra_plane base; 26 struct tegra_windowgroup *wgrp; 27 }; 28 29 static inline struct tegra_shared_plane * 30 to_tegra_shared_plane(struct drm_plane *plane) 31 { 32 return container_of(plane, struct tegra_shared_plane, base.base); 33 } 34 35 struct tegra_display_hub_soc { 36 unsigned int num_wgrps; 37 bool supports_dsc; 38 }; 39 40 struct tegra_display_hub { 41 struct drm_private_obj base; 42 struct host1x_client client; 43 struct clk *clk_disp; 44 struct clk *clk_dsc; 45 struct clk *clk_hub; 46 struct reset_control *rst; 47 48 unsigned int num_heads; 49 struct clk **clk_heads; 50 51 const struct tegra_display_hub_soc *soc; 52 struct tegra_windowgroup *wgrps; 53 }; 54 55 static inline struct tegra_display_hub * 56 to_tegra_display_hub(struct host1x_client *client) 57 { 58 return container_of(client, struct tegra_display_hub, client); 59 } 60 61 struct tegra_display_hub_state { 62 struct drm_private_state base; 63 64 struct tegra_dc *dc; 65 unsigned long rate; 66 struct clk *clk; 67 }; 68 69 static inline struct tegra_display_hub_state * 70 to_tegra_display_hub_state(struct drm_private_state *priv) 71 { 72 return container_of(priv, struct tegra_display_hub_state, base); 73 } 74 75 struct tegra_plane; 76 77 int tegra_display_hub_prepare(struct tegra_display_hub *hub); 78 void tegra_display_hub_cleanup(struct tegra_display_hub *hub); 79 80 struct drm_plane *tegra_shared_plane_create(struct drm_device *drm, 81 struct tegra_dc *dc, 82 unsigned int wgrp, 83 unsigned int index); 84 85 int tegra_display_hub_atomic_check(struct drm_device *drm, 86 struct drm_atomic_state *state); 87 void tegra_display_hub_atomic_commit(struct drm_device *drm, 88 struct drm_atomic_state *state); 89 90 #define DC_CMD_IHUB_COMMON_MISC_CTL 0x068 91 #define LATENCY_EVENT (1 << 3) 92 93 #define DC_DISP_IHUB_COMMON_DISPLAY_FETCH_METER 0x451 94 #define CURS_SLOTS(x) (((x) & 0xff) << 8) 95 #define WGRP_SLOTS(x) (((x) & 0xff) << 0) 96 97 #endif /* TEGRA_HUB_H */ 98