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