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 29struct reset_control; 30 31struct 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 55static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra) 56{ 57 return dev_get_drvdata(tegra->drm->dev->parent); 58} 59 60struct tegra_drm_client; 61 62struct 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 74struct 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 87int tegra_drm_submit(struct tegra_drm_context *context, 88 struct drm_tegra_submit *args, struct drm_device *drm, 89 struct drm_file *file); 90 91static inline int 92tegra_drm_get_streamid_offset_thi(struct tegra_drm_client *client, u32 *offset) 93{ 94 *offset = 0x30; 95 96 return 0; 97} 98 99struct 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 110static inline struct tegra_drm_client * 111host1x_to_drm_client(struct host1x_client *client) 112{ 113 return container_of(client, struct tegra_drm_client, base); 114} 115 116int tegra_drm_register_client(struct tegra_drm *tegra, 117 struct tegra_drm_client *client); 118int tegra_drm_unregister_client(struct tegra_drm *tegra, 119 struct tegra_drm_client *client); 120int host1x_client_iommu_attach(struct host1x_client *client); 121void host1x_client_iommu_detach(struct host1x_client *client); 122 123int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); 124int tegra_drm_exit(struct tegra_drm *tegra); 125 126void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); 127void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, 128 dma_addr_t iova); 129 130struct cec_notifier; 131 132struct 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 edid *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 148static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) 149{ 150 return container_of(e, struct tegra_output, encoder); 151} 152 153static 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 */ 159int tegra_output_probe(struct tegra_output *output); 160void tegra_output_remove(struct tegra_output *output); 161int tegra_output_init(struct drm_device *drm, struct tegra_output *output); 162void tegra_output_exit(struct tegra_output *output); 163void tegra_output_find_possible_crtcs(struct tegra_output *output, 164 struct drm_device *drm); 165int tegra_output_suspend(struct tegra_output *output); 166int tegra_output_resume(struct tegra_output *output); 167 168int tegra_output_connector_get_modes(struct drm_connector *connector); 169enum drm_connector_status 170tegra_output_connector_detect(struct drm_connector *connector, bool force); 171void tegra_output_connector_destroy(struct drm_connector *connector); 172 173/* from dpaux.c */ 174struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); 175enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); 176int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); 177int drm_dp_aux_detach(struct drm_dp_aux *aux); 178int drm_dp_aux_enable(struct drm_dp_aux *aux); 179int drm_dp_aux_disable(struct drm_dp_aux *aux); 180 181/* from fb.c */ 182struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, 183 unsigned int index); 184bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); 185int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, 186 struct tegra_bo_tiling *tiling); 187struct 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); 191struct 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 196void tegra_fbdev_setup(struct drm_device *drm); 197#else 198static inline void tegra_fbdev_setup(struct drm_device *drm) 199{ } 200#endif 201 202extern struct platform_driver tegra_display_hub_driver; 203extern struct platform_driver tegra_dc_driver; 204extern struct platform_driver tegra_hdmi_driver; 205extern struct platform_driver tegra_dsi_driver; 206extern struct platform_driver tegra_dpaux_driver; 207extern struct platform_driver tegra_sor_driver; 208extern struct platform_driver tegra_gr2d_driver; 209extern struct platform_driver tegra_gr3d_driver; 210extern struct platform_driver tegra_vic_driver; 211extern struct platform_driver tegra_nvdec_driver; 212 213#endif /* HOST1X_DRM_H */ 214