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54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author:Mark Yao <mark.yao@rock-chips.com>
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*/
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#ifndef _ROCKCHIP_DRM_GEM_H
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#define _ROCKCHIP_DRM_GEM_H
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#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
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struct rockchip_gem_object {
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struct drm_gem_object base;
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unsigned int flags;
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void *kvaddr;
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dma_addr_t dma_addr;
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/* Used when IOMMU is disabled */
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unsigned long dma_attrs;
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/* Used when IOMMU is enabled */
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struct drm_mm_node mm;
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unsigned long num_pages;
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struct page **pages;
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struct sg_table *sgt;
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size_t size;
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};
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struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
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struct drm_gem_object *
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rockchip_gem_prime_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach,
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struct sg_table *sg);
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int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
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void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
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/* drm driver mmap file operations */
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int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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/* mmap a gem object to userspace. */
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int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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struct rockchip_gem_object *
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rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
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bool alloc_kmap);
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void rockchip_gem_free_object(struct drm_gem_object *obj);
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int rockchip_gem_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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#endif /* _ROCKCHIP_DRM_GEM_H */
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