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_encoder.h>
17 #include <drm/drm_fixed.h>
18 #include <drm/drm_probe_helper.h>
19 #include <uapi/drm/tegra_drm.h>
20
21 #include "gem.h"
22 #include "hub.h"
23 #include "trace.h"
24
25 /* XXX move to include/uapi/drm/drm_fourcc.h? */
26 #define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22)
27
28 struct drm_fb_helper;
29 struct drm_fb_helper_surface_size;
30
31 struct edid;
32 struct reset_control;
33
34 struct tegra_drm {
35 struct drm_device *drm;
36
37 struct iommu_domain *domain;
38 bool use_explicit_iommu;
39 struct mutex mm_lock;
40 struct drm_mm mm;
41
42 struct {
43 struct iova_domain domain;
44 unsigned long shift;
45 unsigned long limit;
46 } carveout;
47
48 struct mutex clients_lock;
49 struct list_head clients;
50
51 unsigned int hmask, vmask;
52 unsigned int pitch_align;
53 unsigned int num_crtcs;
54
55 struct tegra_display_hub *hub;
56 };
57
tegra_drm_to_host1x(struct tegra_drm * tegra)58 static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra)
59 {
60 return dev_get_drvdata(tegra->drm->dev->parent);
61 }
62
63 struct tegra_drm_client;
64
65 struct tegra_drm_context {
66 struct tegra_drm_client *client;
67 struct host1x_channel *channel;
68
69 /* Only used by legacy UAPI. */
70 unsigned int id;
71
72 /* Only used by new UAPI. */
73 struct xarray mappings;
74 struct host1x_memory_context *memory_context;
75 };
76
77 struct tegra_drm_client_ops {
78 int (*open_channel)(struct tegra_drm_client *client,
79 struct tegra_drm_context *context);
80 void (*close_channel)(struct tegra_drm_context *context);
81 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
82 int (*is_valid_class)(u32 class);
83 int (*submit)(struct tegra_drm_context *context,
84 struct drm_tegra_submit *args, struct drm_device *drm,
85 struct drm_file *file);
86 int (*get_streamid_offset)(struct tegra_drm_client *client, u32 *offset);
87 int (*can_use_memory_ctx)(struct tegra_drm_client *client, bool *supported);
88 };
89
90 int tegra_drm_submit(struct tegra_drm_context *context,
91 struct drm_tegra_submit *args, struct drm_device *drm,
92 struct drm_file *file);
93
94 static inline int
tegra_drm_get_streamid_offset_thi(struct tegra_drm_client * client,u32 * offset)95 tegra_drm_get_streamid_offset_thi(struct tegra_drm_client *client, u32 *offset)
96 {
97 *offset = 0x30;
98
99 return 0;
100 }
101
102 struct tegra_drm_client {
103 struct host1x_client base;
104 struct list_head list;
105 struct tegra_drm *drm;
106 struct host1x_channel *shared_channel;
107
108 /* Set by driver */
109 unsigned int version;
110 const struct tegra_drm_client_ops *ops;
111 };
112
113 static inline struct tegra_drm_client *
host1x_to_drm_client(struct host1x_client * client)114 host1x_to_drm_client(struct host1x_client *client)
115 {
116 return container_of(client, struct tegra_drm_client, base);
117 }
118
119 int tegra_drm_register_client(struct tegra_drm *tegra,
120 struct tegra_drm_client *client);
121 int tegra_drm_unregister_client(struct tegra_drm *tegra,
122 struct tegra_drm_client *client);
123 int host1x_client_iommu_attach(struct host1x_client *client);
124 void host1x_client_iommu_detach(struct host1x_client *client);
125
126 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
127 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
128 dma_addr_t iova);
129
130 struct cec_notifier;
131
132 struct tegra_output {
133 struct device_node *of_node;
134 struct device *dev;
135
136 struct drm_bridge *bridge;
137 struct drm_panel *panel;
138 struct i2c_adapter *ddc;
139 const struct drm_edid *drm_edid;
140 struct cec_notifier *cec;
141 unsigned int hpd_irq;
142 struct gpio_desc *hpd_gpio;
143
144 struct drm_encoder encoder;
145 struct drm_connector connector;
146 };
147
encoder_to_output(struct drm_encoder * e)148 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
149 {
150 return container_of(e, struct tegra_output, encoder);
151 }
152
connector_to_output(struct drm_connector * c)153 static inline struct tegra_output *connector_to_output(struct drm_connector *c)
154 {
155 return container_of(c, struct tegra_output, connector);
156 }
157
158 /* from output.c */
159 int tegra_output_probe(struct tegra_output *output);
160 void tegra_output_remove(struct tegra_output *output);
161 int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
162 void tegra_output_exit(struct tegra_output *output);
163 void tegra_output_find_possible_crtcs(struct tegra_output *output,
164 struct drm_device *drm);
165 int tegra_output_suspend(struct tegra_output *output);
166 int tegra_output_resume(struct tegra_output *output);
167
168 int tegra_output_connector_get_modes(struct drm_connector *connector);
169 enum drm_connector_status
170 tegra_output_connector_detect(struct drm_connector *connector, bool force);
171 void tegra_output_connector_destroy(struct drm_connector *connector);
172
173 /* from dpaux.c */
174 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
175 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
176 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
177 int drm_dp_aux_detach(struct drm_dp_aux *aux);
178 int drm_dp_aux_enable(struct drm_dp_aux *aux);
179 int drm_dp_aux_disable(struct drm_dp_aux *aux);
180
181 /* from fb.c */
182 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
183 unsigned int index);
184 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
185 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
186 struct tegra_bo_tiling *tiling);
187 struct drm_framebuffer *tegra_fb_alloc(struct drm_device *drm,
188 const struct drm_mode_fb_cmd2 *mode_cmd,
189 struct tegra_bo **planes,
190 unsigned int num_planes);
191 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
192 struct drm_file *file,
193 const struct drm_mode_fb_cmd2 *cmd);
194
195 #ifdef CONFIG_DRM_FBDEV_EMULATION
196 int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
197 struct drm_fb_helper_surface_size *sizes);
198 #define TEGRA_FBDEV_DRIVER_OPS \
199 .fbdev_probe = tegra_fbdev_driver_fbdev_probe
200 #else
201 #define TEGRA_FBDEV_DRIVER_OPS \
202 .fbdev_probe = NULL
203 #endif
204
205 extern struct platform_driver tegra_display_hub_driver;
206 extern struct platform_driver tegra_dc_driver;
207 extern struct platform_driver tegra_hdmi_driver;
208 extern struct platform_driver tegra_dsi_driver;
209 extern struct platform_driver tegra_dpaux_driver;
210 extern struct platform_driver tegra_sor_driver;
211 extern struct platform_driver tegra_gr2d_driver;
212 extern struct platform_driver tegra_gr3d_driver;
213 extern struct platform_driver tegra_vic_driver;
214 extern struct platform_driver tegra_nvdec_driver;
215
216 #endif /* HOST1X_DRM_H */
217