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_encoder.h> 17 #include <drm/drm_fixed.h> 18 #include <drm/drm_probe_helper.h> 19 #include <uapi/drm/tegra_drm.h> 20 21 #include "gem.h" 22 #include "hub.h" 23 #include "trace.h" 24 25 /* XXX move to include/uapi/drm/drm_fourcc.h? */ 26 #define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22) 27 28 struct drm_fb_helper; 29 struct drm_fb_helper_surface_size; 30 31 struct edid; 32 struct reset_control; 33 34 struct tegra_drm { 35 struct drm_device *drm; 36 37 struct iommu_domain *domain; 38 bool use_explicit_iommu; 39 struct mutex mm_lock; 40 struct drm_mm mm; 41 42 struct { 43 struct iova_domain domain; 44 unsigned long shift; 45 unsigned long limit; 46 } carveout; 47 48 struct mutex clients_lock; 49 struct list_head clients; 50 51 unsigned int hmask, vmask; 52 unsigned int pitch_align; 53 unsigned int num_crtcs; 54 55 struct tegra_display_hub *hub; 56 }; 57 58 static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra) 59 { 60 return dev_get_drvdata(tegra->drm->dev->parent); 61 } 62 63 struct tegra_drm_client; 64 65 struct tegra_drm_context { 66 struct tegra_drm_client *client; 67 struct host1x_channel *channel; 68 69 /* Only used by legacy UAPI. */ 70 unsigned int id; 71 72 /* Only used by new UAPI. */ 73 struct xarray mappings; 74 struct host1x_memory_context *memory_context; 75 }; 76 77 struct tegra_drm_client_ops { 78 int (*open_channel)(struct tegra_drm_client *client, 79 struct tegra_drm_context *context); 80 void (*close_channel)(struct tegra_drm_context *context); 81 int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); 82 int (*is_valid_class)(u32 class); 83 int (*submit)(struct tegra_drm_context *context, 84 struct drm_tegra_submit *args, struct drm_device *drm, 85 struct drm_file *file); 86 int (*get_streamid_offset)(struct tegra_drm_client *client, u32 *offset); 87 int (*can_use_memory_ctx)(struct tegra_drm_client *client, bool *supported); 88 }; 89 90 int tegra_drm_submit(struct tegra_drm_context *context, 91 struct drm_tegra_submit *args, struct drm_device *drm, 92 struct drm_file *file); 93 94 static inline int 95 tegra_drm_get_streamid_offset_thi(struct tegra_drm_client *client, u32 *offset) 96 { 97 *offset = 0x30; 98 99 return 0; 100 } 101 102 struct tegra_drm_client { 103 struct host1x_client base; 104 struct list_head list; 105 struct tegra_drm *drm; 106 struct host1x_channel *shared_channel; 107 108 /* Set by driver */ 109 unsigned int version; 110 const struct tegra_drm_client_ops *ops; 111 }; 112 113 static inline struct tegra_drm_client * 114 host1x_to_drm_client(struct host1x_client *client) 115 { 116 return container_of(client, struct tegra_drm_client, base); 117 } 118 119 int tegra_drm_register_client(struct tegra_drm *tegra, 120 struct tegra_drm_client *client); 121 int tegra_drm_unregister_client(struct tegra_drm *tegra, 122 struct tegra_drm_client *client); 123 int host1x_client_iommu_attach(struct host1x_client *client); 124 void host1x_client_iommu_detach(struct host1x_client *client); 125 126 void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 127 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 128 dma_addr_t iova); 129 130 struct cec_notifier; 131 132 struct tegra_output { 133 struct device_node *of_node; 134 struct device *dev; 135 136 struct drm_bridge *bridge; 137 struct drm_panel *panel; 138 struct i2c_adapter *ddc; 139 const struct drm_edid *drm_edid; 140 struct cec_notifier *cec; 141 unsigned int hpd_irq; 142 struct gpio_desc *hpd_gpio; 143 144 struct drm_encoder encoder; 145 struct drm_connector connector; 146 }; 147 148 static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 149 { 150 return container_of(e, struct tegra_output, encoder); 151 } 152 153 static inline struct tegra_output *connector_to_output(struct drm_connector *c) 154 { 155 return container_of(c, struct tegra_output, connector); 156 } 157 158 /* from output.c */ 159 int tegra_output_probe(struct tegra_output *output); 160 void tegra_output_remove(struct tegra_output *output); 161 int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 162 void tegra_output_exit(struct tegra_output *output); 163 void tegra_output_find_possible_crtcs(struct tegra_output *output, 164 struct drm_device *drm); 165 int tegra_output_suspend(struct tegra_output *output); 166 int tegra_output_resume(struct tegra_output *output); 167 168 int tegra_output_connector_get_modes(struct drm_connector *connector); 169 enum drm_connector_status 170 tegra_output_connector_detect(struct drm_connector *connector, bool force); 171 void tegra_output_connector_destroy(struct drm_connector *connector); 172 173 /* from dpaux.c */ 174 struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 175 enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 176 int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 177 int drm_dp_aux_detach(struct drm_dp_aux *aux); 178 int drm_dp_aux_enable(struct drm_dp_aux *aux); 179 int drm_dp_aux_disable(struct drm_dp_aux *aux); 180 181 /* from fb.c */ 182 struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 183 unsigned int index); 184 bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 185 int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 186 struct tegra_bo_tiling *tiling); 187 struct drm_framebuffer *tegra_fb_alloc(struct drm_device *drm, 188 const struct drm_mode_fb_cmd2 *mode_cmd, 189 struct tegra_bo **planes, 190 unsigned int num_planes); 191 struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, 192 struct drm_file *file, 193 const struct drm_mode_fb_cmd2 *cmd); 194 195 #ifdef CONFIG_DRM_FBDEV_EMULATION 196 int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper, 197 struct drm_fb_helper_surface_size *sizes); 198 #define TEGRA_FBDEV_DRIVER_OPS \ 199 .fbdev_probe = tegra_fbdev_driver_fbdev_probe 200 #else 201 #define TEGRA_FBDEV_DRIVER_OPS \ 202 .fbdev_probe = NULL 203 #endif 204 205 extern struct platform_driver tegra_display_hub_driver; 206 extern struct platform_driver tegra_dc_driver; 207 extern struct platform_driver tegra_hdmi_driver; 208 extern struct platform_driver tegra_dsi_driver; 209 extern struct platform_driver tegra_dpaux_driver; 210 extern struct platform_driver tegra_sor_driver; 211 extern struct platform_driver tegra_gr2d_driver; 212 extern struct platform_driver tegra_gr3d_driver; 213 extern struct platform_driver tegra_vic_driver; 214 extern struct platform_driver tegra_nvdec_driver; 215 216 #endif /* HOST1X_DRM_H */ 217