1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (c) 2020 NVIDIA Corporation */ 3 4 #ifndef _TEGRA_DRM_UAPI_H 5 #define _TEGRA_DRM_UAPI_H 6 7 #include <linux/dma-mapping.h> 8 #include <linux/idr.h> 9 #include <linux/kref.h> 10 #include <linux/xarray.h> 11 12 #include <drm/drm.h> 13 14 struct drm_file; 15 struct drm_device; 16 17 struct tegra_drm_file { 18 /* Legacy UAPI state */ 19 struct idr legacy_contexts; 20 struct mutex lock; 21 22 /* New UAPI state */ 23 struct xarray contexts; 24 }; 25 26 struct tegra_drm_mapping { 27 struct kref ref; 28 29 struct device *dev; 30 struct host1x_bo *bo; 31 struct sg_table *sgt; 32 enum dma_data_direction direction; 33 dma_addr_t iova; 34 dma_addr_t iova_end; 35 }; 36 37 int tegra_drm_ioctl_channel_open(struct drm_device *drm, void *data, 38 struct drm_file *file); 39 int tegra_drm_ioctl_channel_close(struct drm_device *drm, void *data, 40 struct drm_file *file); 41 int tegra_drm_ioctl_channel_map(struct drm_device *drm, void *data, 42 struct drm_file *file); 43 int tegra_drm_ioctl_channel_unmap(struct drm_device *drm, void *data, 44 struct drm_file *file); 45 int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data, 46 struct drm_file *file); 47 48 void tegra_drm_uapi_close_file(struct tegra_drm_file *file); 49 void tegra_drm_mapping_put(struct tegra_drm_mapping *mapping); 50 51 #endif 52