1
2
3
4
5
6
7
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/iova.h>
16#include <linux/of_gpio.h>
17
18#include <drm/drmP.h>
19#include <drm/drm_crtc_helper.h>
20#include <drm/drm_edid.h>
21#include <drm/drm_encoder.h>
22#include <drm/drm_fb_helper.h>
23#include <drm/drm_fixed.h>
24
25#include "gem.h"
26
27struct reset_control;
28
29struct tegra_fb {
30 struct drm_framebuffer base;
31 struct tegra_bo **planes;
32 unsigned int num_planes;
33};
34
35#ifdef CONFIG_DRM_FBDEV_EMULATION
36struct tegra_fbdev {
37 struct drm_fb_helper base;
38 struct tegra_fb *fb;
39};
40#endif
41
42struct tegra_drm {
43 struct drm_device *drm;
44
45 struct iommu_domain *domain;
46 struct mutex mm_lock;
47 struct drm_mm mm;
48
49 struct {
50 struct iova_domain domain;
51 unsigned long shift;
52 unsigned long limit;
53 } carveout;
54
55 struct mutex clients_lock;
56 struct list_head clients;
57
58#ifdef CONFIG_DRM_FBDEV_EMULATION
59 struct tegra_fbdev *fbdev;
60#endif
61
62 unsigned int pitch_align;
63
64 struct {
65 struct drm_atomic_state *state;
66 struct work_struct work;
67 struct mutex lock;
68 } commit;
69
70 struct drm_atomic_state *state;
71};
72
73struct tegra_drm_client;
74
75struct tegra_drm_context {
76 struct tegra_drm_client *client;
77 struct host1x_channel *channel;
78 unsigned int id;
79};
80
81struct tegra_drm_client_ops {
82 int (*open_channel)(struct tegra_drm_client *client,
83 struct tegra_drm_context *context);
84 void (*close_channel)(struct tegra_drm_context *context);
85 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
86 int (*is_valid_class)(u32 class);
87 int (*submit)(struct tegra_drm_context *context,
88 struct drm_tegra_submit *args, struct drm_device *drm,
89 struct drm_file *file);
90};
91
92int tegra_drm_submit(struct tegra_drm_context *context,
93 struct drm_tegra_submit *args, struct drm_device *drm,
94 struct drm_file *file);
95
96struct tegra_drm_client {
97 struct host1x_client base;
98 struct list_head list;
99
100 const struct tegra_drm_client_ops *ops;
101};
102
103static inline struct tegra_drm_client *
104host1x_to_drm_client(struct host1x_client *client)
105{
106 return container_of(client, struct tegra_drm_client, base);
107}
108
109int tegra_drm_register_client(struct tegra_drm *tegra,
110 struct tegra_drm_client *client);
111int tegra_drm_unregister_client(struct tegra_drm *tegra,
112 struct tegra_drm_client *client);
113
114int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
115int tegra_drm_exit(struct tegra_drm *tegra);
116
117void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
118void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
119 dma_addr_t iova);
120
121struct tegra_dc_soc_info;
122struct tegra_output;
123
124struct tegra_dc_stats {
125 unsigned long frames;
126 unsigned long vblank;
127 unsigned long underflow;
128 unsigned long overflow;
129};
130
131struct tegra_dc {
132 struct host1x_client client;
133 struct host1x_syncpt *syncpt;
134 struct device *dev;
135 spinlock_t lock;
136
137 struct drm_crtc base;
138 unsigned int powergate;
139 int pipe;
140
141 struct clk *clk;
142 struct reset_control *rst;
143 void __iomem *regs;
144 int irq;
145
146 struct tegra_output *rgb;
147
148 struct tegra_dc_stats stats;
149 struct list_head list;
150
151 struct drm_info_list *debugfs_files;
152 struct drm_minor *minor;
153 struct dentry *debugfs;
154
155
156 struct drm_pending_vblank_event *event;
157
158 const struct tegra_dc_soc_info *soc;
159
160 struct iommu_domain *domain;
161};
162
163static inline struct tegra_dc *
164host1x_client_to_dc(struct host1x_client *client)
165{
166 return container_of(client, struct tegra_dc, client);
167}
168
169static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
170{
171 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
172}
173
174static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
175 unsigned long offset)
176{
177 writel(value, dc->regs + (offset << 2));
178}
179
180static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset)
181{
182 return readl(dc->regs + (offset << 2));
183}
184
185struct tegra_dc_window {
186 struct {
187 unsigned int x;
188 unsigned int y;
189 unsigned int w;
190 unsigned int h;
191 } src;
192 struct {
193 unsigned int x;
194 unsigned int y;
195 unsigned int w;
196 unsigned int h;
197 } dst;
198 unsigned int bits_per_pixel;
199 unsigned int stride[2];
200 unsigned long base[3];
201 bool bottom_up;
202
203 struct tegra_bo_tiling tiling;
204 u32 format;
205 u32 swap;
206};
207
208
209void tegra_dc_commit(struct tegra_dc *dc);
210int tegra_dc_state_setup_clock(struct tegra_dc *dc,
211 struct drm_crtc_state *crtc_state,
212 struct clk *clk, unsigned long pclk,
213 unsigned int div);
214
215struct tegra_output {
216 struct device_node *of_node;
217 struct device *dev;
218
219 struct drm_panel *panel;
220 struct i2c_adapter *ddc;
221 const struct edid *edid;
222 unsigned int hpd_irq;
223 int hpd_gpio;
224 enum of_gpio_flags hpd_gpio_flags;
225
226 struct drm_encoder encoder;
227 struct drm_connector connector;
228};
229
230static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
231{
232 return container_of(e, struct tegra_output, encoder);
233}
234
235static inline struct tegra_output *connector_to_output(struct drm_connector *c)
236{
237 return container_of(c, struct tegra_output, connector);
238}
239
240
241int tegra_dc_rgb_probe(struct tegra_dc *dc);
242int tegra_dc_rgb_remove(struct tegra_dc *dc);
243int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc);
244int tegra_dc_rgb_exit(struct tegra_dc *dc);
245
246
247int tegra_output_probe(struct tegra_output *output);
248void tegra_output_remove(struct tegra_output *output);
249int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
250void tegra_output_exit(struct tegra_output *output);
251
252int tegra_output_connector_get_modes(struct drm_connector *connector);
253enum drm_connector_status
254tegra_output_connector_detect(struct drm_connector *connector, bool force);
255void tegra_output_connector_destroy(struct drm_connector *connector);
256
257void tegra_output_encoder_destroy(struct drm_encoder *encoder);
258
259
260struct drm_dp_link;
261
262struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
263enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
264int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
265int drm_dp_aux_detach(struct drm_dp_aux *aux);
266int drm_dp_aux_enable(struct drm_dp_aux *aux);
267int drm_dp_aux_disable(struct drm_dp_aux *aux);
268int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding);
269int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
270 u8 pattern);
271
272
273struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
274 unsigned int index);
275bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
276int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
277 struct tegra_bo_tiling *tiling);
278struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
279 struct drm_file *file,
280 const struct drm_mode_fb_cmd2 *cmd);
281int tegra_drm_fb_prepare(struct drm_device *drm);
282void tegra_drm_fb_free(struct drm_device *drm);
283int tegra_drm_fb_init(struct drm_device *drm);
284void tegra_drm_fb_exit(struct drm_device *drm);
285void tegra_drm_fb_suspend(struct drm_device *drm);
286void tegra_drm_fb_resume(struct drm_device *drm);
287#ifdef CONFIG_DRM_FBDEV_EMULATION
288void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev);
289void tegra_fb_output_poll_changed(struct drm_device *drm);
290#endif
291
292extern struct platform_driver tegra_dc_driver;
293extern struct platform_driver tegra_hdmi_driver;
294extern struct platform_driver tegra_dsi_driver;
295extern struct platform_driver tegra_dpaux_driver;
296extern struct platform_driver tegra_sor_driver;
297extern struct platform_driver tegra_gr2d_driver;
298extern struct platform_driver tegra_gr3d_driver;
299extern struct platform_driver tegra_vic_driver;
300
301#endif
302
