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_crtc_helper.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 25 #include "gem.h" 26 27 struct reset_control; 28 29 struct tegra_fb { 30 struct drm_framebuffer base; 31 struct tegra_bo **planes; 32 unsigned int num_planes; 33 }; 34 35 #ifdef CONFIG_DRM_FBDEV_EMULATION 36 struct tegra_fbdev { 37 struct drm_fb_helper base; 38 struct tegra_fb *fb; 39 }; 40 #endif 41 42 struct tegra_drm { 43 struct drm_device *drm; 44 45 struct iommu_domain *domain; 46 struct mutex mm_lock; 47 struct drm_mm mm; 48 49 struct { 50 struct iova_domain domain; 51 unsigned long shift; 52 unsigned long limit; 53 } carveout; 54 55 struct mutex clients_lock; 56 struct list_head clients; 57 58 #ifdef CONFIG_DRM_FBDEV_EMULATION 59 struct tegra_fbdev *fbdev; 60 #endif 61 62 unsigned int pitch_align; 63 64 struct { 65 struct drm_atomic_state *state; 66 struct work_struct work; 67 struct mutex lock; 68 } commit; 69 70 struct drm_atomic_state *state; 71 }; 72 73 struct tegra_drm_client; 74 75 struct tegra_drm_context { 76 struct tegra_drm_client *client; 77 struct host1x_channel *channel; 78 unsigned int id; 79 }; 80 81 struct tegra_drm_client_ops { 82 int (*open_channel)(struct tegra_drm_client *client, 83 struct tegra_drm_context *context); 84 void (*close_channel)(struct tegra_drm_context *context); 85 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 86 int (*submit)(struct tegra_drm_context *context, 87 struct drm_tegra_submit *args, struct drm_device *drm, 88 struct drm_file *file); 89 }; 90 91 int tegra_drm_submit(struct tegra_drm_context *context, 92 struct drm_tegra_submit *args, struct drm_device *drm, 93 struct drm_file *file); 94 95 struct tegra_drm_client { 96 struct host1x_client base; 97 struct list_head list; 98 99 const struct tegra_drm_client_ops *ops; 100 }; 101 102 static inline struct tegra_drm_client * 103 host1x_to_drm_client(struct host1x_client *client) 104 { 105 return container_of(client, struct tegra_drm_client, base); 106 } 107 108 int tegra_drm_register_client(struct tegra_drm *tegra, 109 struct tegra_drm_client *client); 110 int tegra_drm_unregister_client(struct tegra_drm *tegra, 111 struct tegra_drm_client *client); 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 tegra_dc_soc_info; 121 struct tegra_output; 122 123 struct tegra_dc_stats { 124 unsigned long frames; 125 unsigned long vblank; 126 unsigned long underflow; 127 unsigned long overflow; 128 }; 129 130 struct tegra_dc { 131 struct host1x_client client; 132 struct host1x_syncpt *syncpt; 133 struct device *dev; 134 spinlock_t lock; 135 136 struct drm_crtc base; 137 unsigned int powergate; 138 int pipe; 139 140 struct clk *clk; 141 struct reset_control *rst; 142 void __iomem *regs; 143 int irq; 144 145 struct tegra_output *rgb; 146 147 struct tegra_dc_stats stats; 148 struct list_head list; 149 150 struct drm_info_list *debugfs_files; 151 struct drm_minor *minor; 152 struct dentry *debugfs; 153 154 /* page-flip handling */ 155 struct drm_pending_vblank_event *event; 156 157 const struct tegra_dc_soc_info *soc; 158 159 struct iommu_domain *domain; 160 }; 161 162 static inline struct tegra_dc * 163 host1x_client_to_dc(struct host1x_client *client) 164 { 165 return container_of(client, struct tegra_dc, client); 166 } 167 168 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 169 { 170 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 171 } 172 173 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 174 unsigned long offset) 175 { 176 writel(value, dc->regs + (offset << 2)); 177 } 178 179 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 180 { 181 return readl(dc->regs + (offset << 2)); 182 } 183 184 struct tegra_dc_window { 185 struct { 186 unsigned int x; 187 unsigned int y; 188 unsigned int w; 189 unsigned int h; 190 } src; 191 struct { 192 unsigned int x; 193 unsigned int y; 194 unsigned int w; 195 unsigned int h; 196 } dst; 197 unsigned int bits_per_pixel; 198 unsigned int stride[2]; 199 unsigned long base[3]; 200 bool bottom_up; 201 202 struct tegra_bo_tiling tiling; 203 u32 format; 204 u32 swap; 205 }; 206 207 /* from dc.c */ 208 u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc); 209 void tegra_dc_enable_vblank(struct tegra_dc *dc); 210 void tegra_dc_disable_vblank(struct tegra_dc *dc); 211 void tegra_dc_commit(struct tegra_dc *dc); 212 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 213 struct drm_crtc_state *crtc_state, 214 struct clk *clk, unsigned long pclk, 215 unsigned int div); 216 217 struct tegra_output { 218 struct device_node *of_node; 219 struct device *dev; 220 221 struct drm_panel *panel; 222 struct i2c_adapter *ddc; 223 const struct edid *edid; 224 unsigned int hpd_irq; 225 int hpd_gpio; 226 enum of_gpio_flags hpd_gpio_flags; 227 228 struct drm_encoder encoder; 229 struct drm_connector connector; 230 }; 231 232 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 233 { 234 return container_of(e, struct tegra_output, encoder); 235 } 236 237 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 238 { 239 return container_of(c, struct tegra_output, connector); 240 } 241 242 /* from rgb.c */ 243 int tegra_dc_rgb_probe(struct tegra_dc *dc); 244 int tegra_dc_rgb_remove(struct tegra_dc *dc); 245 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 246 int tegra_dc_rgb_exit(struct tegra_dc *dc); 247 248 /* from output.c */ 249 int tegra_output_probe(struct tegra_output *output); 250 void tegra_output_remove(struct tegra_output *output); 251 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 252 void tegra_output_exit(struct tegra_output *output); 253 254 int tegra_output_connector_get_modes(struct drm_connector *connector); 255 enum drm_connector_status 256 tegra_output_connector_detect(struct drm_connector *connector, bool force); 257 void tegra_output_connector_destroy(struct drm_connector *connector); 258 259 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 260 261 /* from dpaux.c */ 262 struct drm_dp_link; 263 264 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 265 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 266 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 267 int drm_dp_aux_detach(struct drm_dp_aux *aux); 268 int drm_dp_aux_enable(struct drm_dp_aux *aux); 269 int drm_dp_aux_disable(struct drm_dp_aux *aux); 270 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 271 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 272 u8 pattern); 273 274 /* from fb.c */ 275 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 276 unsigned int index); 277 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 278 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 279 struct tegra_bo_tiling *tiling); 280 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 281 struct drm_file *file, 282 const struct drm_mode_fb_cmd2 *cmd); 283 int tegra_drm_fb_prepare(struct drm_device *drm); 284 void tegra_drm_fb_free(struct drm_device *drm); 285 int tegra_drm_fb_init(struct drm_device *drm); 286 void tegra_drm_fb_exit(struct drm_device *drm); 287 void tegra_drm_fb_suspend(struct drm_device *drm); 288 void tegra_drm_fb_resume(struct drm_device *drm); 289 #ifdef CONFIG_DRM_FBDEV_EMULATION 290 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 291 void tegra_fb_output_poll_changed(struct drm_device *drm); 292 #endif 293 294 extern struct platform_driver tegra_dc_driver; 295 extern struct platform_driver tegra_hdmi_driver; 296 extern struct platform_driver tegra_dsi_driver; 297 extern struct platform_driver tegra_dpaux_driver; 298 extern struct platform_driver tegra_sor_driver; 299 extern struct platform_driver tegra_gr2d_driver; 300 extern struct platform_driver tegra_gr3d_driver; 301 extern struct platform_driver tegra_vic_driver; 302 303 #endif /* HOST1X_DRM_H */ 304