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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
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
67static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra)
68{
69 return dev_get_drvdata(tegra->drm->dev->parent);
70}
71
72struct tegra_drm_client;
73
74struct tegra_drm_context {
75 struct tegra_drm_client *client;
76 struct host1x_channel *channel;
77
78
79 unsigned int id;
80
81
82 struct xarray mappings;
83};
84
85struct tegra_drm_client_ops {
86 int (*open_channel)(struct tegra_drm_client *client,
87 struct tegra_drm_context *context);
88 void (*close_channel)(struct tegra_drm_context *context);
89 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
90 int (*is_valid_class)(u32 class);
91 int (*submit)(struct tegra_drm_context *context,
92 struct drm_tegra_submit *args, struct drm_device *drm,
93 struct drm_file *file);
94};
95
96int tegra_drm_submit(struct tegra_drm_context *context,
97 struct drm_tegra_submit *args, struct drm_device *drm,
98 struct drm_file *file);
99
100struct tegra_drm_client {
101 struct host1x_client base;
102 struct list_head list;
103 struct tegra_drm *drm;
104 struct host1x_channel *shared_channel;
105
106
107 unsigned int version;
108 const struct tegra_drm_client_ops *ops;
109};
110
111static inline struct tegra_drm_client *
112host1x_to_drm_client(struct host1x_client *client)
113{
114 return container_of(client, struct tegra_drm_client, base);
115}
116
117int tegra_drm_register_client(struct tegra_drm *tegra,
118 struct tegra_drm_client *client);
119int tegra_drm_unregister_client(struct tegra_drm *tegra,
120 struct tegra_drm_client *client);
121int host1x_client_iommu_attach(struct host1x_client *client);
122void host1x_client_iommu_detach(struct host1x_client *client);
123
124int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
125int tegra_drm_exit(struct tegra_drm *tegra);
126
127void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
128void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
129 dma_addr_t iova);
130
131struct cec_notifier;
132
133struct tegra_output {
134 struct device_node *of_node;
135 struct device *dev;
136
137 struct drm_bridge *bridge;
138 struct drm_panel *panel;
139 struct i2c_adapter *ddc;
140 const struct edid *edid;
141 struct cec_notifier *cec;
142 unsigned int hpd_irq;
143 struct gpio_desc *hpd_gpio;
144
145 struct drm_encoder encoder;
146 struct drm_connector connector;
147};
148
149static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
150{
151 return container_of(e, struct tegra_output, encoder);
152}
153
154static inline struct tegra_output *connector_to_output(struct drm_connector *c)
155{
156 return container_of(c, struct tegra_output, connector);
157}
158
159
160int tegra_output_probe(struct tegra_output *output);
161void tegra_output_remove(struct tegra_output *output);
162int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
163void tegra_output_exit(struct tegra_output *output);
164void tegra_output_find_possible_crtcs(struct tegra_output *output,
165 struct drm_device *drm);
166int tegra_output_suspend(struct tegra_output *output);
167int tegra_output_resume(struct tegra_output *output);
168
169int tegra_output_connector_get_modes(struct drm_connector *connector);
170enum drm_connector_status
171tegra_output_connector_detect(struct drm_connector *connector, bool force);
172void tegra_output_connector_destroy(struct drm_connector *connector);
173
174
175struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
176enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
177int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
178int drm_dp_aux_detach(struct drm_dp_aux *aux);
179int drm_dp_aux_enable(struct drm_dp_aux *aux);
180int drm_dp_aux_disable(struct drm_dp_aux *aux);
181
182
183struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
184 unsigned int index);
185bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
186int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
187 struct tegra_bo_tiling *tiling);
188struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
189 struct drm_file *file,
190 const struct drm_mode_fb_cmd2 *cmd);
191int tegra_drm_fb_prepare(struct drm_device *drm);
192void tegra_drm_fb_free(struct drm_device *drm);
193int tegra_drm_fb_init(struct drm_device *drm);
194void tegra_drm_fb_exit(struct drm_device *drm);
195
196extern struct platform_driver tegra_display_hub_driver;
197extern struct platform_driver tegra_dc_driver;
198extern struct platform_driver tegra_hdmi_driver;
199extern struct platform_driver tegra_dsi_driver;
200extern struct platform_driver tegra_dpaux_driver;
201extern struct platform_driver tegra_sor_driver;
202extern struct platform_driver tegra_gr2d_driver;
203extern struct platform_driver tegra_gr3d_driver;
204extern struct platform_driver tegra_vic_driver;
205
206#endif
207
