Loading...
1/*
2 * Copyright (C) 2012 Avionic Design GmbH
3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10#ifndef HOST1X_DRM_H
11#define HOST1X_DRM_H 1
12
13#include <uapi/drm/tegra_drm.h>
14#include <linux/host1x.h>
15#include <linux/of_gpio.h>
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc_helper.h>
19#include <drm/drm_edid.h>
20#include <drm/drm_fb_helper.h>
21#include <drm/drm_fixed.h>
22
23#include "gem.h"
24
25struct reset_control;
26
27struct tegra_fb {
28 struct drm_framebuffer base;
29 struct tegra_bo **planes;
30 unsigned int num_planes;
31};
32
33#ifdef CONFIG_DRM_FBDEV_EMULATION
34struct tegra_fbdev {
35 struct drm_fb_helper base;
36 struct tegra_fb *fb;
37};
38#endif
39
40struct tegra_drm {
41 struct drm_device *drm;
42
43 struct iommu_domain *domain;
44 struct drm_mm mm;
45
46 struct mutex clients_lock;
47 struct list_head clients;
48
49#ifdef CONFIG_DRM_FBDEV_EMULATION
50 struct tegra_fbdev *fbdev;
51#endif
52
53 unsigned int pitch_align;
54
55 struct {
56 struct drm_atomic_state *state;
57 struct work_struct work;
58 struct mutex lock;
59 } commit;
60
61 struct drm_atomic_state *state;
62};
63
64struct tegra_drm_client;
65
66struct tegra_drm_context {
67 struct tegra_drm_client *client;
68 struct host1x_channel *channel;
69 struct list_head list;
70};
71
72struct tegra_drm_client_ops {
73 int (*open_channel)(struct tegra_drm_client *client,
74 struct tegra_drm_context *context);
75 void (*close_channel)(struct tegra_drm_context *context);
76 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
77 int (*submit)(struct tegra_drm_context *context,
78 struct drm_tegra_submit *args, struct drm_device *drm,
79 struct drm_file *file);
80};
81
82int tegra_drm_submit(struct tegra_drm_context *context,
83 struct drm_tegra_submit *args, struct drm_device *drm,
84 struct drm_file *file);
85
86struct tegra_drm_client {
87 struct host1x_client base;
88 struct list_head list;
89
90 const struct tegra_drm_client_ops *ops;
91};
92
93static inline struct tegra_drm_client *
94host1x_to_drm_client(struct host1x_client *client)
95{
96 return container_of(client, struct tegra_drm_client, base);
97}
98
99int tegra_drm_register_client(struct tegra_drm *tegra,
100 struct tegra_drm_client *client);
101int tegra_drm_unregister_client(struct tegra_drm *tegra,
102 struct tegra_drm_client *client);
103
104int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
105int tegra_drm_exit(struct tegra_drm *tegra);
106
107struct tegra_dc_soc_info;
108struct tegra_output;
109
110struct tegra_dc_stats {
111 unsigned long frames;
112 unsigned long vblank;
113 unsigned long underflow;
114 unsigned long overflow;
115};
116
117struct tegra_dc {
118 struct host1x_client client;
119 struct host1x_syncpt *syncpt;
120 struct device *dev;
121 spinlock_t lock;
122
123 struct drm_crtc base;
124 int powergate;
125 int pipe;
126
127 struct clk *clk;
128 struct reset_control *rst;
129 void __iomem *regs;
130 int irq;
131
132 struct tegra_output *rgb;
133
134 struct tegra_dc_stats stats;
135 struct list_head list;
136
137 struct drm_info_list *debugfs_files;
138 struct drm_minor *minor;
139 struct dentry *debugfs;
140
141 /* page-flip handling */
142 struct drm_pending_vblank_event *event;
143
144 const struct tegra_dc_soc_info *soc;
145
146 struct iommu_domain *domain;
147};
148
149static inline struct tegra_dc *
150host1x_client_to_dc(struct host1x_client *client)
151{
152 return container_of(client, struct tegra_dc, client);
153}
154
155static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
156{
157 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
158}
159
160static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
161 unsigned long offset)
162{
163 writel(value, dc->regs + (offset << 2));
164}
165
166static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset)
167{
168 return readl(dc->regs + (offset << 2));
169}
170
171struct tegra_dc_window {
172 struct {
173 unsigned int x;
174 unsigned int y;
175 unsigned int w;
176 unsigned int h;
177 } src;
178 struct {
179 unsigned int x;
180 unsigned int y;
181 unsigned int w;
182 unsigned int h;
183 } dst;
184 unsigned int bits_per_pixel;
185 unsigned int stride[2];
186 unsigned long base[3];
187 bool bottom_up;
188
189 struct tegra_bo_tiling tiling;
190 u32 format;
191 u32 swap;
192};
193
194/* from dc.c */
195u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc);
196void tegra_dc_enable_vblank(struct tegra_dc *dc);
197void tegra_dc_disable_vblank(struct tegra_dc *dc);
198void tegra_dc_commit(struct tegra_dc *dc);
199int tegra_dc_state_setup_clock(struct tegra_dc *dc,
200 struct drm_crtc_state *crtc_state,
201 struct clk *clk, unsigned long pclk,
202 unsigned int div);
203
204struct tegra_output {
205 struct device_node *of_node;
206 struct device *dev;
207
208 struct drm_panel *panel;
209 struct i2c_adapter *ddc;
210 const struct edid *edid;
211 unsigned int hpd_irq;
212 int hpd_gpio;
213 enum of_gpio_flags hpd_gpio_flags;
214
215 struct drm_encoder encoder;
216 struct drm_connector connector;
217};
218
219static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
220{
221 return container_of(e, struct tegra_output, encoder);
222}
223
224static inline struct tegra_output *connector_to_output(struct drm_connector *c)
225{
226 return container_of(c, struct tegra_output, connector);
227}
228
229/* from rgb.c */
230int tegra_dc_rgb_probe(struct tegra_dc *dc);
231int tegra_dc_rgb_remove(struct tegra_dc *dc);
232int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
233int tegra_dc_rgb_exit(struct tegra_dc *dc);
234
235/* from output.c */
236int tegra_output_probe(struct tegra_output *output);
237void tegra_output_remove(struct tegra_output *output);
238int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
239void tegra_output_exit(struct tegra_output *output);
240
241int tegra_output_connector_get_modes(struct drm_connector *connector);
242struct drm_encoder *
243tegra_output_connector_best_encoder(struct drm_connector *connector);
244enum drm_connector_status
245tegra_output_connector_detect(struct drm_connector *connector, bool force);
246void tegra_output_connector_destroy(struct drm_connector *connector);
247
248void tegra_output_encoder_destroy(struct drm_encoder *encoder);
249
250/* from dpaux.c */
251struct drm_dp_link;
252
253struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
254enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
255int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
256int drm_dp_aux_detach(struct drm_dp_aux *aux);
257int drm_dp_aux_enable(struct drm_dp_aux *aux);
258int drm_dp_aux_disable(struct drm_dp_aux *aux);
259int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding);
260int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
261 u8 pattern);
262
263/* from fb.c */
264struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
265 unsigned int index);
266bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
267int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
268 struct tegra_bo_tiling *tiling);
269struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
270 struct drm_file *file,
271 const struct drm_mode_fb_cmd2 *cmd);
272int tegra_drm_fb_prepare(struct drm_device *drm);
273void tegra_drm_fb_free(struct drm_device *drm);
274int tegra_drm_fb_init(struct drm_device *drm);
275void tegra_drm_fb_exit(struct drm_device *drm);
276void tegra_drm_fb_suspend(struct drm_device *drm);
277void tegra_drm_fb_resume(struct drm_device *drm);
278#ifdef CONFIG_DRM_FBDEV_EMULATION
279void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
280void tegra_fb_output_poll_changed(struct drm_device *drm);
281#endif
282
283extern struct platform_driver tegra_dc_driver;
284extern struct platform_driver tegra_hdmi_driver;
285extern struct platform_driver tegra_dsi_driver;
286extern struct platform_driver tegra_dpaux_driver;
287extern struct platform_driver tegra_sor_driver;
288extern struct platform_driver tegra_gr2d_driver;
289extern struct platform_driver tegra_gr3d_driver;
290
291#endif /* HOST1X_DRM_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Avionic Design GmbH
4 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
5 */
6
7#ifndef HOST1X_DRM_H
8#define HOST1X_DRM_H 1
9
10#include <linux/host1x.h>
11#include <linux/iova.h>
12#include <linux/gpio/consumer.h>
13
14#include <drm/drm_atomic.h>
15#include <drm/drm_bridge.h>
16#include <drm/drm_edid.h>
17#include <drm/drm_encoder.h>
18#include <drm/drm_fb_helper.h>
19#include <drm/drm_fixed.h>
20#include <drm/drm_probe_helper.h>
21#include <uapi/drm/tegra_drm.h>
22
23#include "gem.h"
24#include "hub.h"
25#include "trace.h"
26
27/* XXX move to include/uapi/drm/drm_fourcc.h? */
28#define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22)
29
30struct reset_control;
31
32#ifdef CONFIG_DRM_FBDEV_EMULATION
33struct tegra_fbdev {
34 struct drm_fb_helper base;
35 struct drm_framebuffer *fb;
36};
37#endif
38
39struct tegra_drm {
40 struct drm_device *drm;
41
42 struct iommu_domain *domain;
43 bool use_explicit_iommu;
44 struct mutex mm_lock;
45 struct drm_mm mm;
46
47 struct {
48 struct iova_domain domain;
49 unsigned long shift;
50 unsigned long limit;
51 } carveout;
52
53 struct mutex clients_lock;
54 struct list_head clients;
55
56#ifdef CONFIG_DRM_FBDEV_EMULATION
57 struct tegra_fbdev *fbdev;
58#endif
59
60 unsigned int hmask, vmask;
61 unsigned int pitch_align;
62 unsigned int num_crtcs;
63
64 struct tegra_display_hub *hub;
65};
66
67struct tegra_drm_client;
68
69struct tegra_drm_context {
70 struct tegra_drm_client *client;
71 struct host1x_channel *channel;
72 unsigned int id;
73};
74
75struct tegra_drm_client_ops {
76 int (*open_channel)(struct tegra_drm_client *client,
77 struct tegra_drm_context *context);
78 void (*close_channel)(struct tegra_drm_context *context);
79 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
80 int (*is_valid_class)(u32 class);
81 int (*submit)(struct tegra_drm_context *context,
82 struct drm_tegra_submit *args, struct drm_device *drm,
83 struct drm_file *file);
84};
85
86int tegra_drm_submit(struct tegra_drm_context *context,
87 struct drm_tegra_submit *args, struct drm_device *drm,
88 struct drm_file *file);
89
90struct tegra_drm_client {
91 struct host1x_client base;
92 struct list_head list;
93 struct tegra_drm *drm;
94
95 unsigned int version;
96 const struct tegra_drm_client_ops *ops;
97};
98
99static inline struct tegra_drm_client *
100host1x_to_drm_client(struct host1x_client *client)
101{
102 return container_of(client, struct tegra_drm_client, base);
103}
104
105int tegra_drm_register_client(struct tegra_drm *tegra,
106 struct tegra_drm_client *client);
107int tegra_drm_unregister_client(struct tegra_drm *tegra,
108 struct tegra_drm_client *client);
109int host1x_client_iommu_attach(struct host1x_client *client);
110void host1x_client_iommu_detach(struct host1x_client *client);
111
112int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
113int tegra_drm_exit(struct tegra_drm *tegra);
114
115void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
116void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
117 dma_addr_t iova);
118
119struct cec_notifier;
120
121struct tegra_output {
122 struct device_node *of_node;
123 struct device *dev;
124
125 struct drm_bridge *bridge;
126 struct drm_panel *panel;
127 struct i2c_adapter *ddc;
128 const struct edid *edid;
129 struct cec_notifier *cec;
130 unsigned int hpd_irq;
131 struct gpio_desc *hpd_gpio;
132
133 struct drm_encoder encoder;
134 struct drm_connector connector;
135};
136
137static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
138{
139 return container_of(e, struct tegra_output, encoder);
140}
141
142static inline struct tegra_output *connector_to_output(struct drm_connector *c)
143{
144 return container_of(c, struct tegra_output, connector);
145}
146
147/* from output.c */
148int tegra_output_probe(struct tegra_output *output);
149void tegra_output_remove(struct tegra_output *output);
150int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
151void tegra_output_exit(struct tegra_output *output);
152void tegra_output_find_possible_crtcs(struct tegra_output *output,
153 struct drm_device *drm);
154int tegra_output_suspend(struct tegra_output *output);
155int tegra_output_resume(struct tegra_output *output);
156
157int tegra_output_connector_get_modes(struct drm_connector *connector);
158enum drm_connector_status
159tegra_output_connector_detect(struct drm_connector *connector, bool force);
160void tegra_output_connector_destroy(struct drm_connector *connector);
161
162/* from dpaux.c */
163struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
164enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
165int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
166int drm_dp_aux_detach(struct drm_dp_aux *aux);
167int drm_dp_aux_enable(struct drm_dp_aux *aux);
168int drm_dp_aux_disable(struct drm_dp_aux *aux);
169
170/* from fb.c */
171struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
172 unsigned int index);
173bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
174int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
175 struct tegra_bo_tiling *tiling);
176struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
177 struct drm_file *file,
178 const struct drm_mode_fb_cmd2 *cmd);
179int tegra_drm_fb_prepare(struct drm_device *drm);
180void tegra_drm_fb_free(struct drm_device *drm);
181int tegra_drm_fb_init(struct drm_device *drm);
182void tegra_drm_fb_exit(struct drm_device *drm);
183
184extern struct platform_driver tegra_display_hub_driver;
185extern struct platform_driver tegra_dc_driver;
186extern struct platform_driver tegra_hdmi_driver;
187extern struct platform_driver tegra_dsi_driver;
188extern struct platform_driver tegra_dpaux_driver;
189extern struct platform_driver tegra_sor_driver;
190extern struct platform_driver tegra_gr2d_driver;
191extern struct platform_driver tegra_gr3d_driver;
192extern struct platform_driver tegra_vic_driver;
193
194#endif /* HOST1X_DRM_H */