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