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 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 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 67 static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra) 68 { 69 return dev_get_drvdata(tegra->drm->dev->parent); 70 } 71 72 struct tegra_drm_client; 73 74 struct tegra_drm_context { 75 struct tegra_drm_client *client; 76 struct host1x_channel *channel; 77 78 /* Only used by legacy UAPI. */ 79 unsigned int id; 80 81 /* Only used by new UAPI. */ 82 struct xarray mappings; 83 struct host1x_memory_context *memory_context; 84 }; 85 86 struct tegra_drm_client_ops { 87 int (*open_channel)(struct tegra_drm_client *client, 88 struct tegra_drm_context *context); 89 void (*close_channel)(struct tegra_drm_context *context); 90 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 91 int (*is_valid_class)(u32 class); 92 int (*submit)(struct tegra_drm_context *context, 93 struct drm_tegra_submit *args, struct drm_device *drm, 94 struct drm_file *file); 95 int (*get_streamid_offset)(struct tegra_drm_client *client, u32 *offset); 96 int (*can_use_memory_ctx)(struct tegra_drm_client *client, bool *supported); 97 }; 98 99 int tegra_drm_submit(struct tegra_drm_context *context, 100 struct drm_tegra_submit *args, struct drm_device *drm, 101 struct drm_file *file); 102 103 struct tegra_drm_client { 104 struct host1x_client base; 105 struct list_head list; 106 struct tegra_drm *drm; 107 struct host1x_channel *shared_channel; 108 109 /* Set by driver */ 110 unsigned int version; 111 const struct tegra_drm_client_ops *ops; 112 }; 113 114 static inline struct tegra_drm_client * 115 host1x_to_drm_client(struct host1x_client *client) 116 { 117 return container_of(client, struct tegra_drm_client, base); 118 } 119 120 int tegra_drm_register_client(struct tegra_drm *tegra, 121 struct tegra_drm_client *client); 122 int tegra_drm_unregister_client(struct tegra_drm *tegra, 123 struct tegra_drm_client *client); 124 int host1x_client_iommu_attach(struct host1x_client *client); 125 void host1x_client_iommu_detach(struct host1x_client *client); 126 127 int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 128 int tegra_drm_exit(struct tegra_drm *tegra); 129 130 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 131 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 132 dma_addr_t iova); 133 134 struct cec_notifier; 135 136 struct tegra_output { 137 struct device_node *of_node; 138 struct device *dev; 139 140 struct drm_bridge *bridge; 141 struct drm_panel *panel; 142 struct i2c_adapter *ddc; 143 const struct edid *edid; 144 struct cec_notifier *cec; 145 unsigned int hpd_irq; 146 struct gpio_desc *hpd_gpio; 147 148 struct drm_encoder encoder; 149 struct drm_connector connector; 150 }; 151 152 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 153 { 154 return container_of(e, struct tegra_output, encoder); 155 } 156 157 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 158 { 159 return container_of(c, struct tegra_output, connector); 160 } 161 162 /* from output.c */ 163 int tegra_output_probe(struct tegra_output *output); 164 void tegra_output_remove(struct tegra_output *output); 165 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 166 void tegra_output_exit(struct tegra_output *output); 167 void tegra_output_find_possible_crtcs(struct tegra_output *output, 168 struct drm_device *drm); 169 int tegra_output_suspend(struct tegra_output *output); 170 int tegra_output_resume(struct tegra_output *output); 171 172 int tegra_output_connector_get_modes(struct drm_connector *connector); 173 enum drm_connector_status 174 tegra_output_connector_detect(struct drm_connector *connector, bool force); 175 void tegra_output_connector_destroy(struct drm_connector *connector); 176 177 /* from dpaux.c */ 178 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 179 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 180 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 181 int drm_dp_aux_detach(struct drm_dp_aux *aux); 182 int drm_dp_aux_enable(struct drm_dp_aux *aux); 183 int drm_dp_aux_disable(struct drm_dp_aux *aux); 184 185 /* from fb.c */ 186 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 187 unsigned int index); 188 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 189 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 190 struct tegra_bo_tiling *tiling); 191 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 192 struct drm_file *file, 193 const struct drm_mode_fb_cmd2 *cmd); 194 int tegra_drm_fb_prepare(struct drm_device *drm); 195 void tegra_drm_fb_free(struct drm_device *drm); 196 int tegra_drm_fb_init(struct drm_device *drm); 197 void tegra_drm_fb_exit(struct drm_device *drm); 198 199 extern struct platform_driver tegra_display_hub_driver; 200 extern struct platform_driver tegra_dc_driver; 201 extern struct platform_driver tegra_hdmi_driver; 202 extern struct platform_driver tegra_dsi_driver; 203 extern struct platform_driver tegra_dpaux_driver; 204 extern struct platform_driver tegra_sor_driver; 205 extern struct platform_driver tegra_gr2d_driver; 206 extern struct platform_driver tegra_gr3d_driver; 207 extern struct platform_driver tegra_vic_driver; 208 extern struct platform_driver tegra_nvdec_driver; 209 210 #endif /* HOST1X_DRM_H */ 211