diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.h')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h new file mode 100644 index 0000000000..f9d18e8cf6 --- /dev/null +++ b/drivers/gpu/drm/tegra/drm.h @@ -0,0 +1,213 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef HOST1X_DRM_H +#define HOST1X_DRM_H 1 + +#include <linux/host1x.h> +#include <linux/iova.h> +#include <linux/gpio/consumer.h> + +#include <drm/drm_atomic.h> +#include <drm/drm_bridge.h> +#include <drm/drm_edid.h> +#include <drm/drm_encoder.h> +#include <drm/drm_fixed.h> +#include <drm/drm_probe_helper.h> +#include <uapi/drm/tegra_drm.h> + +#include "gem.h" +#include "hub.h" +#include "trace.h" + +/* XXX move to include/uapi/drm/drm_fourcc.h? */ +#define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22) + +struct reset_control; + +struct tegra_drm { + struct drm_device *drm; + + struct iommu_domain *domain; + bool use_explicit_iommu; + struct mutex mm_lock; + struct drm_mm mm; + + struct { + struct iova_domain domain; + unsigned long shift; + unsigned long limit; + } carveout; + + struct mutex clients_lock; + struct list_head clients; + + unsigned int hmask, vmask; + unsigned int pitch_align; + unsigned int num_crtcs; + + struct tegra_display_hub *hub; +}; + +static inline struct host1x *tegra_drm_to_host1x(struct tegra_drm *tegra) +{ + return dev_get_drvdata(tegra->drm->dev->parent); +} + +struct tegra_drm_client; + +struct tegra_drm_context { + struct tegra_drm_client *client; + struct host1x_channel *channel; + + /* Only used by legacy UAPI. */ + unsigned int id; + + /* Only used by new UAPI. */ + struct xarray mappings; + struct host1x_memory_context *memory_context; +}; + +struct tegra_drm_client_ops { + int (*open_channel)(struct tegra_drm_client *client, + struct tegra_drm_context *context); + void (*close_channel)(struct tegra_drm_context *context); + int (*is_addr_reg)(struct device *dev, u32 class, u32 offset); + int (*is_valid_class)(u32 class); + int (*submit)(struct tegra_drm_context *context, + struct drm_tegra_submit *args, struct drm_device *drm, + struct drm_file *file); + int (*get_streamid_offset)(struct tegra_drm_client *client, u32 *offset); + int (*can_use_memory_ctx)(struct tegra_drm_client *client, bool *supported); +}; + +int tegra_drm_submit(struct tegra_drm_context *context, + struct drm_tegra_submit *args, struct drm_device *drm, + struct drm_file *file); + +static inline int +tegra_drm_get_streamid_offset_thi(struct tegra_drm_client *client, u32 *offset) +{ + *offset = 0x30; + + return 0; +} + +struct tegra_drm_client { + struct host1x_client base; + struct list_head list; + struct tegra_drm *drm; + struct host1x_channel *shared_channel; + + /* Set by driver */ + unsigned int version; + const struct tegra_drm_client_ops *ops; +}; + +static inline struct tegra_drm_client * +host1x_to_drm_client(struct host1x_client *client) +{ + return container_of(client, struct tegra_drm_client, base); +} + +int tegra_drm_register_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); +int tegra_drm_unregister_client(struct tegra_drm *tegra, + struct tegra_drm_client *client); +int host1x_client_iommu_attach(struct host1x_client *client); +void host1x_client_iommu_detach(struct host1x_client *client); + +int tegra_drm_init(struct tegra_drm *tegra, struct drm_device *drm); +int tegra_drm_exit(struct tegra_drm *tegra); + +void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova); +void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt, + dma_addr_t iova); + +struct cec_notifier; + +struct tegra_output { + struct device_node *of_node; + struct device *dev; + + struct drm_bridge *bridge; + struct drm_panel *panel; + struct i2c_adapter *ddc; + const struct edid *edid; + struct cec_notifier *cec; + unsigned int hpd_irq; + struct gpio_desc *hpd_gpio; + + struct drm_encoder encoder; + struct drm_connector connector; +}; + +static inline struct tegra_output *encoder_to_output(struct drm_encoder *e) +{ + return container_of(e, struct tegra_output, encoder); +} + +static inline struct tegra_output *connector_to_output(struct drm_connector *c) +{ + return container_of(c, struct tegra_output, connector); +} + +/* from output.c */ +int tegra_output_probe(struct tegra_output *output); +void tegra_output_remove(struct tegra_output *output); +int tegra_output_init(struct drm_device *drm, struct tegra_output *output); +void tegra_output_exit(struct tegra_output *output); +void tegra_output_find_possible_crtcs(struct tegra_output *output, + struct drm_device *drm); +int tegra_output_suspend(struct tegra_output *output); +int tegra_output_resume(struct tegra_output *output); + +int tegra_output_connector_get_modes(struct drm_connector *connector); +enum drm_connector_status +tegra_output_connector_detect(struct drm_connector *connector, bool force); +void tegra_output_connector_destroy(struct drm_connector *connector); + +/* from dpaux.c */ +struct drm_dp_aux *drm_dp_aux_find_by_of_node(struct device_node *np); +enum drm_connector_status drm_dp_aux_detect(struct drm_dp_aux *aux); +int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output); +int drm_dp_aux_detach(struct drm_dp_aux *aux); +int drm_dp_aux_enable(struct drm_dp_aux *aux); +int drm_dp_aux_disable(struct drm_dp_aux *aux); + +/* from fb.c */ +struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, + unsigned int index); +bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer); +int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer, + struct tegra_bo_tiling *tiling); +struct drm_framebuffer *tegra_fb_alloc(struct drm_device *drm, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct tegra_bo **planes, + unsigned int num_planes); +struct drm_framebuffer *tegra_fb_create(struct drm_device *drm, + struct drm_file *file, + const struct drm_mode_fb_cmd2 *cmd); + +#ifdef CONFIG_DRM_FBDEV_EMULATION +void tegra_fbdev_setup(struct drm_device *drm); +#else +static inline void tegra_fbdev_setup(struct drm_device *drm) +{ } +#endif + +extern struct platform_driver tegra_display_hub_driver; +extern struct platform_driver tegra_dc_driver; +extern struct platform_driver tegra_hdmi_driver; +extern struct platform_driver tegra_dsi_driver; +extern struct platform_driver tegra_dpaux_driver; +extern struct platform_driver tegra_sor_driver; +extern struct platform_driver tegra_gr2d_driver; +extern struct platform_driver tegra_gr3d_driver; +extern struct platform_driver tegra_vic_driver; +extern struct platform_driver tegra_nvdec_driver; + +#endif /* HOST1X_DRM_H */ |