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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/of_gpio.h>
13
14#include <drm/drm_atomic.h>
15#include <drm/drm_edid.h>
16#include <drm/drm_encoder.h>
17#include <drm/drm_fb_helper.h>
18#include <drm/drm_fixed.h>
19#include <drm/drm_probe_helper.h>
20#include <uapi/drm/tegra_drm.h>
21
22#include "gem.h"
23#include "hub.h"
24#include "trace.h"
25
26struct reset_control;
27
28#ifdef CONFIG_DRM_FBDEV_EMULATION
29struct tegra_fbdev {
30 struct drm_fb_helper base;
31 struct drm_framebuffer *fb;
32};
33#endif
34
35struct tegra_drm {
36 struct drm_device *drm;
37
38 struct iommu_domain *domain;
39 struct iommu_group *group;
40 struct mutex mm_lock;
41 struct drm_mm mm;
42
43 struct {
44 struct iova_domain domain;
45 unsigned long shift;
46 unsigned long limit;
47 } carveout;
48
49 struct mutex clients_lock;
50 struct list_head clients;
51
52#ifdef CONFIG_DRM_FBDEV_EMULATION
53 struct tegra_fbdev *fbdev;
54#endif
55
56 unsigned int pitch_align;
57
58 struct tegra_display_hub *hub;
59};
60
61struct tegra_drm_client;
62
63struct tegra_drm_context {
64 struct tegra_drm_client *client;
65 struct host1x_channel *channel;
66 unsigned int id;
67};
68
69struct tegra_drm_client_ops {
70 int (*open_channel)(struct tegra_drm_client *client,
71 struct tegra_drm_context *context);
72 void (*close_channel)(struct tegra_drm_context *context);
73 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
74 int (*is_valid_class)(u32 class);
75 int (*submit)(struct tegra_drm_context *context,
76 struct drm_tegra_submit *args, struct drm_device *drm,
77 struct drm_file *file);
78};
79
80int tegra_drm_submit(struct tegra_drm_context *context,
81 struct drm_tegra_submit *args, struct drm_device *drm,
82 struct drm_file *file);
83
84struct tegra_drm_client {
85 struct host1x_client base;
86 struct list_head list;
87 struct tegra_drm *drm;
88
89 unsigned int version;
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);
103struct iommu_group *host1x_client_iommu_attach(struct host1x_client *client,
104 bool shared);
105void host1x_client_iommu_detach(struct host1x_client *client,
106 struct iommu_group *group);
107
108int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm);
109int tegra_drm_exit(struct tegra_drm *tegra);
110
111void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
112void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
113 dma_addr_t iova);
114
115struct cec_notifier;
116
117struct tegra_output {
118 struct device_node *of_node;
119 struct device *dev;
120
121 struct drm_panel *panel;
122 struct i2c_adapter *ddc;
123 const struct edid *edid;
124 struct cec_notifier *cec;
125 unsigned int hpd_irq;
126 struct gpio_desc *hpd_gpio;
127
128 struct drm_encoder encoder;
129 struct drm_connector connector;
130};
131
132static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
133{
134 return container_of(e, struct tegra_output, encoder);
135}
136
137static inline struct tegra_output *connector_to_output(struct drm_connector *c)
138{
139 return container_of(c, struct tegra_output, connector);
140}
141
142/* from output.c */
143int tegra_output_probe(struct tegra_output *output);
144void tegra_output_remove(struct tegra_output *output);
145int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
146void tegra_output_exit(struct tegra_output *output);
147void tegra_output_find_possible_crtcs(struct tegra_output *output,
148 struct drm_device *drm);
149
150int tegra_output_connector_get_modes(struct drm_connector *connector);
151enum drm_connector_status
152tegra_output_connector_detect(struct drm_connector *connector, bool force);
153void tegra_output_connector_destroy(struct drm_connector *connector);
154
155void tegra_output_encoder_destroy(struct drm_encoder *encoder);
156
157/* from dpaux.c */
158struct drm_dp_link;
159
160struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
161enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
162int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
163int drm_dp_aux_detach(struct drm_dp_aux *aux);
164int drm_dp_aux_enable(struct drm_dp_aux *aux);
165int drm_dp_aux_disable(struct drm_dp_aux *aux);
166int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding);
167int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link,
168 u8 pattern);
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 */
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_fixed.h>
19#include <drm/drm_probe_helper.h>
20#include <uapi/drm/tegra_drm.h>
21
22#include "gem.h"
23#include "hub.h"
24#include "trace.h"
25
26/* XXX move to include/uapi/drm/drm_fourcc.h? */
27#define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22)
28
29struct reset_control;
30
31struct tegra_drm {
32 struct drm_device *drm;
33
34 struct iommu_domain *domain;
35 bool use_explicit_iommu;
36 struct mutex mm_lock;
37 struct drm_mm mm;
38
39 struct {
40 struct iova_domain domain;
41 unsigned long shift;
42 unsigned long limit;
43 } carveout;
44
45 struct mutex clients_lock;
46 struct list_head clients;
47
48 unsigned int hmask, vmask;
49 unsigned int pitch_align;
50 unsigned int num_crtcs;
51
52 struct tegra_display_hub *hub;
53};
54
55static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra)
56{
57 return dev_get_drvdata(tegra->drm->dev->parent);
58}
59
60struct tegra_drm_client;
61
62struct tegra_drm_context {
63 struct tegra_drm_client *client;
64 struct host1x_channel *channel;
65
66 /* Only used by legacy UAPI. */
67 unsigned int id;
68
69 /* Only used by new UAPI. */
70 struct xarray mappings;
71 struct host1x_memory_context *memory_context;
72};
73
74struct tegra_drm_client_ops {
75 int (*open_channel)(struct tegra_drm_client *client,
76 struct tegra_drm_context *context);
77 void (*close_channel)(struct tegra_drm_context *context);
78 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset);
79 int (*is_valid_class)(u32 class);
80 int (*submit)(struct tegra_drm_context *context,
81 struct drm_tegra_submit *args, struct drm_device *drm,
82 struct drm_file *file);
83 int (*get_streamid_offset)(struct tegra_drm_client *client, u32 *offset);
84 int (*can_use_memory_ctx)(struct tegra_drm_client *client, bool *supported);
85};
86
87int tegra_drm_submit(struct tegra_drm_context *context,
88 struct drm_tegra_submit *args, struct drm_device *drm,
89 struct drm_file *file);
90
91static inline int
92tegra_drm_get_streamid_offset_thi(struct tegra_drm_client *client, u32 *offset)
93{
94 *offset = 0x30;
95
96 return 0;
97}
98
99struct tegra_drm_client {
100 struct host1x_client base;
101 struct list_head list;
102 struct tegra_drm *drm;
103 struct host1x_channel *shared_channel;
104
105 /* Set by driver */
106 unsigned int version;
107 const struct tegra_drm_client_ops *ops;
108};
109
110static inline struct tegra_drm_client *
111host1x_to_drm_client(struct host1x_client *client)
112{
113 return container_of(client, struct tegra_drm_client, base);
114}
115
116int tegra_drm_register_client(struct tegra_drm *tegra,
117 struct tegra_drm_client *client);
118int tegra_drm_unregister_client(struct tegra_drm *tegra,
119 struct tegra_drm_client *client);
120int host1x_client_iommu_attach(struct host1x_client *client);
121void host1x_client_iommu_detach(struct host1x_client *client);
122
123void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
124void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
125 dma_addr_t iova);
126
127struct cec_notifier;
128
129struct tegra_output {
130 struct device_node *of_node;
131 struct device *dev;
132
133 struct drm_bridge *bridge;
134 struct drm_panel *panel;
135 struct i2c_adapter *ddc;
136 const struct edid *edid;
137 struct cec_notifier *cec;
138 unsigned int hpd_irq;
139 struct gpio_desc *hpd_gpio;
140
141 struct drm_encoder encoder;
142 struct drm_connector connector;
143};
144
145static inline struct tegra_output *encoder_to_output(struct drm_encoder *e)
146{
147 return container_of(e, struct tegra_output, encoder);
148}
149
150static inline struct tegra_output *connector_to_output(struct drm_connector *c)
151{
152 return container_of(c, struct tegra_output, connector);
153}
154
155/* from output.c */
156int tegra_output_probe(struct tegra_output *output);
157void tegra_output_remove(struct tegra_output *output);
158int tegra_output_init(struct drm_device *drm, struct tegra_output *output);
159void tegra_output_exit(struct tegra_output *output);
160void tegra_output_find_possible_crtcs(struct tegra_output *output,
161 struct drm_device *drm);
162int tegra_output_suspend(struct tegra_output *output);
163int tegra_output_resume(struct tegra_output *output);
164
165int tegra_output_connector_get_modes(struct drm_connector *connector);
166enum drm_connector_status
167tegra_output_connector_detect(struct drm_connector *connector, bool force);
168void tegra_output_connector_destroy(struct drm_connector *connector);
169
170/* from dpaux.c */
171struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np);
172enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux);
173int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output);
174int drm_dp_aux_detach(struct drm_dp_aux *aux);
175int drm_dp_aux_enable(struct drm_dp_aux *aux);
176int drm_dp_aux_disable(struct drm_dp_aux *aux);
177
178/* from fb.c */
179struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
180 unsigned int index);
181bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
182int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
183 struct tegra_bo_tiling *tiling);
184struct drm_framebuffer *tegra_fb_alloc(struct drm_device *drm,
185 const struct drm_mode_fb_cmd2 *mode_cmd,
186 struct tegra_bo **planes,
187 unsigned int num_planes);
188struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
189 struct drm_file *file,
190 const struct drm_mode_fb_cmd2 *cmd);
191
192#ifdef CONFIG_DRM_FBDEV_EMULATION
193void tegra_fbdev_setup(struct drm_device *drm);
194#else
195static inline void tegra_fbdev_setup(struct drm_device *drm)
196{ }
197#endif
198
199extern struct platform_driver tegra_display_hub_driver;
200extern struct platform_driver tegra_dc_driver;
201extern struct platform_driver tegra_hdmi_driver;
202extern struct platform_driver tegra_dsi_driver;
203extern struct platform_driver tegra_dpaux_driver;
204extern struct platform_driver tegra_sor_driver;
205extern struct platform_driver tegra_gr2d_driver;
206extern struct platform_driver tegra_gr3d_driver;
207extern struct platform_driver tegra_vic_driver;
208extern struct platform_driver tegra_nvdec_driver;
209
210#endif /* HOST1X_DRM_H */