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_edid.h> 21 #include <drm/drm_encoder.h> 22 #include <drm/drm_fb_helper.h> 23 #include <drm/drm_fixed.h> 24 #include <drm/drm_probe_helper.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 65 struct tegra_drm_client; 66 67 struct tegra_drm_context { 68 struct tegra_drm_client *client; 69 struct host1x_channel *channel; 70 unsigned int id; 71 }; 72 73 struct tegra_drm_client_ops { 74 int (*open_channel)(struct tegra_drm_client *client, 75 struct tegra_drm_context *context); 76 void (*close_channel)(struct tegra_drm_context *context); 77 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 78 int (*is_valid_class)(u32 class); 79 int (*submit)(struct tegra_drm_context *context, 80 struct drm_tegra_submit *args, struct drm_device *drm, 81 struct drm_file *file); 82 }; 83 84 int tegra_drm_submit(struct tegra_drm_context *context, 85 struct drm_tegra_submit *args, struct drm_device *drm, 86 struct drm_file *file); 87 88 struct tegra_drm_client { 89 struct host1x_client base; 90 struct list_head list; 91 92 unsigned int version; 93 const struct tegra_drm_client_ops *ops; 94 }; 95 96 static inline struct tegra_drm_client * 97 host1x_to_drm_client(struct host1x_client *client) 98 { 99 return container_of(client, struct tegra_drm_client, base); 100 } 101 102 int tegra_drm_register_client(struct tegra_drm *tegra, 103 struct tegra_drm_client *client); 104 int tegra_drm_unregister_client(struct tegra_drm *tegra, 105 struct tegra_drm_client *client); 106 struct iommu_group *host1x_client_iommu_attach(struct host1x_client *client, 107 bool shared); 108 void host1x_client_iommu_detach(struct host1x_client *client, 109 struct iommu_group *group); 110 111 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 112 int tegra_drm_exit(struct tegra_drm *tegra); 113 114 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 115 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 116 dma_addr_t iova); 117 118 struct cec_notifier; 119 120 struct tegra_output { 121 struct device_node *of_node; 122 struct device *dev; 123 124 struct drm_panel *panel; 125 struct i2c_adapter *ddc; 126 const struct edid *edid; 127 struct cec_notifier *notifier; 128 unsigned int hpd_irq; 129 int hpd_gpio; 130 enum of_gpio_flags hpd_gpio_flags; 131 132 struct drm_encoder encoder; 133 struct drm_connector connector; 134 }; 135 136 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 137 { 138 return container_of(e, struct tegra_output, encoder); 139 } 140 141 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 142 { 143 return container_of(c, struct tegra_output, connector); 144 } 145 146 /* from output.c */ 147 int tegra_output_probe(struct tegra_output *output); 148 void tegra_output_remove(struct tegra_output *output); 149 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 150 void tegra_output_exit(struct tegra_output *output); 151 void tegra_output_find_possible_crtcs(struct tegra_output *output, 152 struct drm_device *drm); 153 154 int tegra_output_connector_get_modes(struct drm_connector *connector); 155 enum drm_connector_status 156 tegra_output_connector_detect(struct drm_connector *connector, bool force); 157 void tegra_output_connector_destroy(struct drm_connector *connector); 158 159 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 160 161 /* from dpaux.c */ 162 struct drm_dp_link; 163 164 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 165 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 166 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 167 int drm_dp_aux_detach(struct drm_dp_aux *aux); 168 int drm_dp_aux_enable(struct drm_dp_aux *aux); 169 int drm_dp_aux_disable(struct drm_dp_aux *aux); 170 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 171 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 172 u8 pattern); 173 174 /* from fb.c */ 175 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 176 unsigned int index); 177 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 178 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 179 struct tegra_bo_tiling *tiling); 180 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 181 struct drm_file *file, 182 const struct drm_mode_fb_cmd2 *cmd); 183 int tegra_drm_fb_prepare(struct drm_device *drm); 184 void tegra_drm_fb_free(struct drm_device *drm); 185 int tegra_drm_fb_init(struct drm_device *drm); 186 void tegra_drm_fb_exit(struct drm_device *drm); 187 188 extern struct platform_driver tegra_display_hub_driver; 189 extern struct platform_driver tegra_dc_driver; 190 extern struct platform_driver tegra_hdmi_driver; 191 extern struct platform_driver tegra_dsi_driver; 192 extern struct platform_driver tegra_dpaux_driver; 193 extern struct platform_driver tegra_sor_driver; 194 extern struct platform_driver tegra_gr2d_driver; 195 extern struct platform_driver tegra_gr3d_driver; 196 extern struct platform_driver tegra_vic_driver; 197 198 #endif /* HOST1X_DRM_H */ 199