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 (*is_valid_class)(u32 class); 87 int (*submit)(struct tegra_drm_context *context, 88 struct drm_tegra_submit *args, struct drm_device *drm, 89 struct drm_file *file); 90 }; 91 92 int tegra_drm_submit(struct tegra_drm_context *context, 93 struct drm_tegra_submit *args, struct drm_device *drm, 94 struct drm_file *file); 95 96 struct tegra_drm_client { 97 struct host1x_client base; 98 struct list_head list; 99 100 const struct tegra_drm_client_ops *ops; 101 }; 102 103 static inline struct tegra_drm_client * 104 host1x_to_drm_client(struct host1x_client *client) 105 { 106 return container_of(client, struct tegra_drm_client, base); 107 } 108 109 int tegra_drm_register_client(struct tegra_drm *tegra, 110 struct tegra_drm_client *client); 111 int tegra_drm_unregister_client(struct tegra_drm *tegra, 112 struct tegra_drm_client *client); 113 114 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 115 int tegra_drm_exit(struct tegra_drm *tegra); 116 117 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 118 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 119 dma_addr_t iova); 120 121 struct tegra_dc_soc_info; 122 struct tegra_output; 123 124 struct tegra_dc_stats { 125 unsigned long frames; 126 unsigned long vblank; 127 unsigned long underflow; 128 unsigned long overflow; 129 }; 130 131 struct tegra_dc { 132 struct host1x_client client; 133 struct host1x_syncpt *syncpt; 134 struct device *dev; 135 spinlock_t lock; 136 137 struct drm_crtc base; 138 unsigned int powergate; 139 int pipe; 140 141 struct clk *clk; 142 struct reset_control *rst; 143 void __iomem *regs; 144 int irq; 145 146 struct tegra_output *rgb; 147 148 struct tegra_dc_stats stats; 149 struct list_head list; 150 151 struct drm_info_list *debugfs_files; 152 struct drm_minor *minor; 153 struct dentry *debugfs; 154 155 /* page-flip handling */ 156 struct drm_pending_vblank_event *event; 157 158 const struct tegra_dc_soc_info *soc; 159 160 struct iommu_domain *domain; 161 }; 162 163 static inline struct tegra_dc * 164 host1x_client_to_dc(struct host1x_client *client) 165 { 166 return container_of(client, struct tegra_dc, client); 167 } 168 169 static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc) 170 { 171 return crtc ? container_of(crtc, struct tegra_dc, base) : NULL; 172 } 173 174 static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value, 175 unsigned long offset) 176 { 177 writel(value, dc->regs + (offset << 2)); 178 } 179 180 static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset) 181 { 182 return readl(dc->regs + (offset << 2)); 183 } 184 185 struct tegra_dc_window { 186 struct { 187 unsigned int x; 188 unsigned int y; 189 unsigned int w; 190 unsigned int h; 191 } src; 192 struct { 193 unsigned int x; 194 unsigned int y; 195 unsigned int w; 196 unsigned int h; 197 } dst; 198 unsigned int bits_per_pixel; 199 unsigned int stride[2]; 200 unsigned long base[3]; 201 bool bottom_up; 202 203 struct tegra_bo_tiling tiling; 204 u32 format; 205 u32 swap; 206 }; 207 208 /* from dc.c */ 209 void tegra_dc_commit(struct tegra_dc *dc); 210 int tegra_dc_state_setup_clock(struct tegra_dc *dc, 211 struct drm_crtc_state *crtc_state, 212 struct clk *clk, unsigned long pclk, 213 unsigned int div); 214 215 struct tegra_output { 216 struct device_node *of_node; 217 struct device *dev; 218 219 struct drm_panel *panel; 220 struct i2c_adapter *ddc; 221 const struct edid *edid; 222 unsigned int hpd_irq; 223 int hpd_gpio; 224 enum of_gpio_flags hpd_gpio_flags; 225 226 struct drm_encoder encoder; 227 struct drm_connector connector; 228 }; 229 230 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 231 { 232 return container_of(e, struct tegra_output, encoder); 233 } 234 235 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 236 { 237 return container_of(c, struct tegra_output, connector); 238 } 239 240 /* from rgb.c */ 241 int tegra_dc_rgb_probe(struct tegra_dc *dc); 242 int tegra_dc_rgb_remove(struct tegra_dc *dc); 243 int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc); 244 int tegra_dc_rgb_exit(struct tegra_dc *dc); 245 246 /* from output.c */ 247 int tegra_output_probe(struct tegra_output *output); 248 void tegra_output_remove(struct tegra_output *output); 249 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 250 void tegra_output_exit(struct tegra_output *output); 251 252 int tegra_output_connector_get_modes(struct drm_connector *connector); 253 enum drm_connector_status 254 tegra_output_connector_detect(struct drm_connector *connector, bool force); 255 void tegra_output_connector_destroy(struct drm_connector *connector); 256 257 void tegra_output_encoder_destroy(struct drm_encoder *encoder); 258 259 /* from dpaux.c */ 260 struct drm_dp_link; 261 262 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 263 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 264 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 265 int drm_dp_aux_detach(struct drm_dp_aux *aux); 266 int drm_dp_aux_enable(struct drm_dp_aux *aux); 267 int drm_dp_aux_disable(struct drm_dp_aux *aux); 268 int drm_dp_aux_prepare(struct drm_dp_aux *aux, u8 encoding); 269 int drm_dp_aux_train(struct drm_dp_aux *aux, struct drm_dp_link *link, 270 u8 pattern); 271 272 /* from fb.c */ 273 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 274 unsigned int index); 275 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 276 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 277 struct tegra_bo_tiling *tiling); 278 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 279 struct drm_file *file, 280 const struct drm_mode_fb_cmd2 *cmd); 281 int tegra_drm_fb_prepare(struct drm_device *drm); 282 void tegra_drm_fb_free(struct drm_device *drm); 283 int tegra_drm_fb_init(struct drm_device *drm); 284 void tegra_drm_fb_exit(struct drm_device *drm); 285 void tegra_drm_fb_suspend(struct drm_device *drm); 286 void tegra_drm_fb_resume(struct drm_device *drm); 287 #ifdef CONFIG_DRM_FBDEV_EMULATION 288 void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev); 289 void tegra_fb_output_poll_changed(struct drm_device *drm); 290 #endif 291 292 extern struct platform_driver tegra_dc_driver; 293 extern struct platform_driver tegra_hdmi_driver; 294 extern struct platform_driver tegra_dsi_driver; 295 extern struct platform_driver tegra_dpaux_driver; 296 extern struct platform_driver tegra_sor_driver; 297 extern struct platform_driver tegra_gr2d_driver; 298 extern struct platform_driver tegra_gr3d_driver; 299 extern struct platform_driver tegra_vic_driver; 300 301 #endif /* HOST1X_DRM_H */ 302