mirror of https://gitee.com/openkylin/linux.git
47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
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#include <linux/dma-buf.h>
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#include <drm/drm_prime.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_file.h>
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#include "lima_device.h"
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#include "lima_object.h"
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#include "lima_gem.h"
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#include "lima_gem_prime.h"
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struct drm_gem_object *lima_gem_prime_import_sg_table(
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struct drm_device *dev, struct dma_buf_attachment *attach,
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struct sg_table *sgt)
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{
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struct lima_device *ldev = to_lima_dev(dev);
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struct lima_bo *bo;
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bo = lima_bo_create(ldev, attach->dmabuf->size, 0, sgt);
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if (IS_ERR(bo))
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return ERR_CAST(bo);
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return &bo->gem;
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}
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struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj)
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{
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struct lima_bo *bo = to_lima_bo(obj);
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int npages = obj->size >> PAGE_SHIFT;
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return drm_prime_pages_to_sg(bo->pages, npages);
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}
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int lima_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
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{
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int ret;
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ret = drm_gem_mmap_obj(obj, obj->size, vma);
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if (ret)
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return ret;
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lima_set_vma_flags(vma);
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return 0;
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}
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