1 /* 2 * Copyright (C) 2012 Avionic Design GmbH 3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 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_atomic.h> 20 #include <drm/drm_crtc_helper.h> 21 #include <drm/drm_edid.h> 22 #include <drm/drm_encoder.h> 23 #include <drm/drm_fb_helper.h> 24 #include <drm/drm_fixed.h> 25 26 #include "gem.h" 27 #include "hub.h" 28 #include "trace.h" 29 30 struct reset_control; 31 32 #ifdef CONFIG_DRM_FBDEV_EMULATION 33 struct tegra_fbdev { 34 struct drm_fb_helper base; 35 struct drm_framebuffer *fb; 36 }; 37 #endif 38 39 struct tegra_drm { 40 struct drm_device *drm; 41 42 struct iommu_domain *domain; 43 struct iommu_group *group; 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 pitch_align; 61 62 struct tegra_display_hub *hub; 63 64 struct drm_atomic_state *state; 65 }; 66 67 struct tegra_drm_client; 68 69 struct tegra_drm_context { 70 struct tegra_drm_client *client; 71 struct host1x_channel *channel; 72 unsigned int id; 73 }; 74 75 struct 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 86 int tegra_drm_submit(struct tegra_drm_context *context, 87 struct drm_tegra_submit *args, struct drm_device *drm, 88 struct drm_file *file); 89 90 struct tegra_drm_client { 91 struct host1x_client base; 92 struct list_head list; 93 94 unsigned int version; 95 const struct tegra_drm_client_ops *ops; 96 }; 97 98 static inline struct tegra_drm_client * 99 host1x_to_drm_client(struct host1x_client *client) 100 { 101 return container_of(client, struct tegra_drm_client, base); 102 } 103 104 int tegra_drm_register_client(struct tegra_drm *tegra, 105 struct tegra_drm_client *client); 106 int tegra_drm_unregister_client(struct tegra_drm *tegra, 107 struct tegra_drm_client *client); 108 struct iommu_group *host1x_client_iommu_attach(struct host1x_client *client, 109 bool shared); 110 void host1x_client_iommu_detach(struct host1x_client *client, 111 struct iommu_group *group); 112 113 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 114 int tegra_drm_exit(struct tegra_drm *tegra); 115 116 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 117 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 118 dma_addr_t iova); 119 120 struct cec_notifier; 121 122 struct tegra_output { 123 struct device_node *of_node; 124 struct device *dev; 125 126 struct drm_panel *panel; 127 struct i2c_adapter *ddc; 128 const struct edid *edid; 129 struct cec_notifier *notifier; 130 unsigned int hpd_irq; 131 int hpd_gpio; 132 enum of_gpio_flags hpd_gpio_flags; 133 134 struct drm_encoder encoder; 135 struct drm_connector connector; 136 }; 137 138 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 139 { 140 return container_of(e, struct tegra_output, encoder); 141 } 142 143 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 144 { 145 return container_of(c, struct tegra_output, connector); 146 } 147 148 /* from output.c */ 149 int tegra_output_probe(struct tegra_output *output); 150 void tegra_output_remove(struct tegra_output *output); 151 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 152 void tegra_output_exit(struct tegra_output *output); 153 void tegra_output_find_possible_crtcs(struct tegra_output *output, 154 struct drm_device *drm); 155 156 int tegra_output_connector_get_modes(struct drm_connector *connector); 157 enum drm_connector_status 158 tegra_output_connector_detect(struct drm_connector *connector, bool force); 159 void tegra_output_connector_destroy(struct drm_connector *connector); 160 161 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 162 163 /* from dpaux.c */ 164 struct drm_dp_link; 165 166 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 167 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 168 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 169 int drm_dp_aux_detach(struct drm_dp_aux *aux); 170 int drm_dp_aux_enable(struct drm_dp_aux *aux); 171 int drm_dp_aux_disable(struct drm_dp_aux *aux); 172 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 173 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 174 u8 pattern); 175 176 /* from fb.c */ 177 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 178 unsigned int index); 179 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 180 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 181 struct tegra_bo_tiling *tiling); 182 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 183 struct drm_file *file, 184 const struct drm_mode_fb_cmd2 *cmd); 185 int tegra_drm_fb_prepare(struct drm_device *drm); 186 void tegra_drm_fb_free(struct drm_device *drm); 187 int tegra_drm_fb_init(struct drm_device *drm); 188 void tegra_drm_fb_exit(struct drm_device *drm); 189 void tegra_drm_fb_suspend(struct drm_device *drm); 190 void tegra_drm_fb_resume(struct drm_device *drm); 191 192 extern struct platform_driver tegra_display_hub_driver; 193 extern struct platform_driver tegra_dc_driver; 194 extern struct platform_driver tegra_hdmi_driver; 195 extern struct platform_driver tegra_dsi_driver; 196 extern struct platform_driver tegra_dpaux_driver; 197 extern struct platform_driver tegra_sor_driver; 198 extern struct platform_driver tegra_gr2d_driver; 199 extern struct platform_driver tegra_gr3d_driver; 200 extern struct platform_driver tegra_vic_driver; 201 202 #endif /* HOST1X_DRM_H */ 203