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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Tegra host1x GEM implementation4 *5 * Copyright (c) 2012-2013, NVIDIA Corporation.6 */7 8#ifndef __HOST1X_GEM_H9#define __HOST1X_GEM_H10 11#include <linux/host1x.h>12 13#include <drm/drm.h>14#include <drm/drm_gem.h>15 16#define TEGRA_BO_BOTTOM_UP (1 << 0)17 18enum tegra_bo_tiling_mode {19 TEGRA_BO_TILING_MODE_PITCH,20 TEGRA_BO_TILING_MODE_TILED,21 TEGRA_BO_TILING_MODE_BLOCK,22};23 24enum tegra_bo_sector_layout {25 TEGRA_BO_SECTOR_LAYOUT_TEGRA,26 TEGRA_BO_SECTOR_LAYOUT_GPU,27};28 29struct tegra_bo_tiling {30 enum tegra_bo_tiling_mode mode;31 unsigned long value;32 enum tegra_bo_sector_layout sector_layout;33};34 35struct tegra_bo {36 struct drm_gem_object gem;37 struct host1x_bo base;38 unsigned long flags;39 struct sg_table *sgt;40 dma_addr_t iova;41 void *vaddr;42 43 struct drm_mm_node *mm;44 unsigned long num_pages;45 struct page **pages;46 /* size of IOMMU mapping */47 size_t size;48 49 struct tegra_bo_tiling tiling;50};51 52static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)53{54 return container_of(gem, struct tegra_bo, gem);55}56 57static inline struct tegra_bo *host1x_to_tegra_bo(struct host1x_bo *bo)58{59 return container_of(bo, struct tegra_bo, base);60}61 62struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size,63 unsigned long flags);64struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,65 struct drm_device *drm,66 size_t size,67 unsigned long flags,68 u32 *handle);69void tegra_bo_free_object(struct drm_gem_object *gem);70int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,71 struct drm_mode_create_dumb *args);72 73extern const struct vm_operations_struct tegra_bo_vm_ops;74 75int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma);76int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);77 78struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem,79 int flags);80struct drm_gem_object *tegra_gem_prime_import(struct drm_device *drm,81 struct dma_buf *buf);82 83struct host1x_bo *tegra_gem_lookup(struct drm_file *file, u32 handle);84 85#endif86