aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/tegra/drm.h
blob: 8cb2dfeaa957380a344a0e0c934d88eebcfa2c46 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
 * Copyright (C) 2012 Avionic Design GmbH
 * Copyright (C) 2012-2013 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 HOST1X_DRM_H
#define HOST1X_DRM_H 1

#include <uapi/drm/tegra_drm.h>
#include <linux/host1x.h>

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fixed.h>

#include "gem.h"

struct reset_control;

struct tegra_fb {
	struct drm_framebuffer base;
	struct tegra_bo **planes;
	unsigned int num_planes;
};

#ifdef CONFIG_DRM_TEGRA_FBDEV
struct tegra_fbdev {
	struct drm_fb_helper base;
	struct tegra_fb *fb;
};
#endif

struct tegra_drm {
	struct drm_device *drm;

	struct iommu_domain *domain;
	struct drm_mm mm;

	struct mutex clients_lock;
	struct list_head clients;

#ifdef CONFIG_DRM_TEGRA_FBDEV
	struct tegra_fbdev *fbdev;
#endif

	unsigned int pitch_align;

	struct {
		struct drm_atomic_state *state;
		struct work_struct work;
		struct mutex lock;
	} commit;
};

struct tegra_drm_client;

struct tegra_drm_context {
	struct tegra_drm_client *client;
	struct host1x_channel *channel;
	struct list_head list;
};

struct tegra_drm_client_ops {
	int (*open_channel)(struct tegra_drm_client *client,
			    struct tegra_drm_context *context);
	void (*close_channel)(struct tegra_drm_context *context);
	int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
	int (*submit)(struct tegra_drm_context *context,
		      struct drm_tegra_submit *args, struct drm_device *drm,
		      struct drm_file *file);
};

int tegra_drm_submit(struct tegra_drm_context *context,
		     struct drm_tegra_submit *args, struct drm_device *drm,
		     struct drm_file *file);

struct tegra_drm_client {
	struct host1x_client base;
	struct list_head list;

	const struct tegra_drm_client_ops *ops;
};

static inline struct tegra_drm_client *
host1x_to_drm_client(struct host1x_client *client)
{
	return container_of(client, struct tegra_drm_client, base);
}

int tegra_drm_register_client(struct tegra_drm *tegra,
			      struct tegra_drm_client *client);
int tegra_drm_unregister_client(struct tegra_drm *tegra,
				struct tegra_drm_client *client);

int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
int tegra_drm_exit(struct tegra_drm *tegra);

struct tegra_dc_soc_info;
struct tegra_output;

struct tegra_dc {
	struct host1x_client client;
	struct device *dev;
	spinlock_t lock;

	struct drm_crtc base;
	int powergate;
	int pipe;

	struct clk *clk;
	struct reset_control *rst;
	void __iomem *regs;
	int irq;

	struct tegra_output *rgb;

	struct list_head list;

	struct drm_info_list *debugfs_files;
	struct drm_minor *minor;
	struct dentry *debugfs;

	/* page-flip handling */
	struct drm_pending_vblank_event *event;

	const struct tegra_dc_soc_info *soc;

	struct iommu_domain *domain;
};

static inline struct tegra_dc *
host1x_client_to_dc(struct host1x_client *client)
{
	return container_of(client, struct tegra_dc, client);
}

static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
{
	return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
}

static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
				   unsigned long offset)
{
	writel(value, dc->regs + (offset << 2));
}

static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset)
{
	return readl(dc->regs + (offset << 2));
}

struct tegra_dc_window {
	struct {
		unsigned int x;
		unsigned int y;
		unsigned int w;
		unsigned int h;
	} src;
	struct {
		unsigned int x;
		unsigned int y;
		unsigned int w;
		unsigned int h;
	} dst;
	unsigned int bits_per_pixel;
	unsigned int stride[2];
	unsigned long base[3];
	bool bottom_up;

	struct tegra_bo_tiling tiling;
	u32 format;
	u32 swap;
};

/* from dc.c */
void tegra_dc_enable_vblank(struct tegra_dc *dc);
void tegra_dc_disable_vblank(struct tegra_dc *dc);
void tegra_dc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file);
void tegra_dc_commit(struct tegra_dc *dc);
int tegra_dc_setup_clock(struct tegra_dc *dc, struct clk *parent,
			 unsigned long pclk, unsigned int div);
int tegra_dc_state_setup_clock(struct tegra_dc *dc,
			       struct drm_crtc_state *crtc_state,
			       struct clk *clk, unsigned long pclk,
			       unsigned int div);

struct tegra_output {
	struct device_node *of_node;
	struct device *dev;

	struct drm_panel *panel;
	struct i2c_adapter *ddc;
	const struct edid *edid;
	unsigned int hpd_irq;
	int hpd_gpio;

	struct drm_encoder encoder;
	struct drm_connector connector;
};

static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
{
	return container_of(e, struct tegra_output, encoder);
}

static inline struct tegra_output *connector_to_output(struct drm_connector *c)
{
	return container_of(c, struct tegra_output, connector);
}

/* from rgb.c */
int tegra_dc_rgb_probe(struct tegra_dc *dc);
int tegra_dc_rgb_remove(struct tegra_dc *dc);
int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
int tegra_dc_rgb_exit(struct tegra_dc *dc);

/* from output.c */
int tegra_output_probe(struct tegra_output *output);
void tegra_output_remove(struct tegra_output *output);
int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
void tegra_output_exit(struct tegra_output *output);

int tegra_output_connector_get_modes(struct drm_connector *connector);
struct drm_encoder *
tegra_output_connector_best_encoder(struct drm_connector *connector);
enum drm_connector_status
tegra_output_connector_detect(struct drm_connector *connector, bool force);
void tegra_output_connector_destroy(struct drm_connector *connector);

void tegra_output_encoder_destroy(struct drm_encoder *encoder);

/* from dpaux.c */
struct tegra_dpaux;
struct drm_dp_link;

struct tegra_dpaux *tegra_dpaux_find_by_of_node(struct device_node *np);
enum drm_connector_status tegra_dpaux_detect(struct tegra_dpaux *dpaux);
int tegra_dpaux_attach(struct tegra_dpaux *dpaux, struct tegra_output *output);
int tegra_dpaux_detach(struct tegra_dpaux *dpaux);
int tegra_dpaux_enable(struct tegra_dpaux *dpaux);
int tegra_dpaux_disable(struct tegra_dpaux *dpaux);
int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding);
int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link,
		      u8 pattern);

/* from fb.c */
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
				    unsigned int index);
bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
			struct tegra_bo_tiling *tiling);
struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
					struct drm_file *file,
					struct drm_mode_fb_cmd2 *cmd);
int tegra_drm_fb_prepare(struct drm_device *drm);
void tegra_drm_fb_free(struct drm_device *drm);
int tegra_drm_fb_init(struct drm_device *drm);
void tegra_drm_fb_exit(struct drm_device *drm);
#ifdef CONFIG_DRM_TEGRA_FBDEV
void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
void tegra_fb_output_poll_changed(struct drm_device *drm);
#endif

extern struct platform_driver tegra_dc_driver;
extern struct platform_driver tegra_dsi_driver;
extern struct platform_driver tegra_sor_driver;
extern struct platform_driver tegra_hdmi_driver;
extern struct platform_driver tegra_dpaux_driver;
extern struct platform_driver tegra_gr2d_driver;
extern struct platform_driver tegra_gr3d_driver;

#endif /* HOST1X_DRM_H */