tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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 */