1 /* 2 * Tegra host1x GEM implementation 3 * 4 * Copyright (c) 2012-2013, NVIDIA Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #ifndef __HOST1X_GEM_H 12 #define __HOST1X_GEM_H 13 14 #include <linux/host1x.h> 15 16 #include <drm/drm.h> 17 #include <drm/drmP.h> 18 19 #define TEGRA_BO_TILED (1 << 0) 20 #define TEGRA_BO_BOTTOM_UP (1 << 1) 21 22 struct tegra_bo { 23 struct drm_gem_object gem; 24 struct host1x_bo base; 25 unsigned long flags; 26 struct sg_table *sgt; 27 dma_addr_t paddr; 28 void *vaddr; 29 }; 30 31 static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem) 32 { 33 return container_of(gem, struct tegra_bo, gem); 34 } 35 36 struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size, 37 unsigned long flags); 38 struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file, 39 struct drm_device *drm, 40 unsigned int size, 41 unsigned long flags, 42 unsigned int *handle); 43 void tegra_bo_free_object(struct drm_gem_object *gem); 44 int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm, 45 struct drm_mode_create_dumb *args); 46 int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm, 47 uint32_t handle, uint64_t *offset); 48 49 int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma); 50 51 extern const struct vm_operations_struct tegra_bo_vm_ops; 52 53 struct dma_buf *tegra_gem_prime_export(struct drm_device *drm, 54 struct drm_gem_object *gem, 55 int flags); 56 struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm, 57 struct dma_buf *buf); 58 59 #endif 60