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cfda55996f
Move dmabuf code to dmabuf unit. This will help to deprecate nvmap_priv.h. JIRA TMM-5721 Change-Id: I5fc2a6e0d8ff1939df5e5623fc9d12fa3592e3bd Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3234588 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
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#ifndef __NVMAP_DMABUF_H
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#define __NVMAP_DMABUF_H
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#define __DMA_ATTR(attrs) attrs
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#define DEFINE_DMA_ATTRS(attrs) unsigned long attrs = 0
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/**
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* dma_set_attr - set a specific attribute
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* @attr: attribute to set
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* @attrs: struct dma_attrs (may be NULL)
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*/
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#define dma_set_attr(attr, attrs) (attrs |= attr)
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/**
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* dma_get_attr - check for a specific attribute
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* @attr: attribute to set
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* @attrs: struct dma_attrs (may be NULL)
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*/
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#define dma_get_attr(attr, attrs) (attrs & attr)
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int nvmap_dmabuf_stash_init(void);
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void nvmap_dmabuf_stash_deinit(void);
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bool dmabuf_is_nvmap(struct dma_buf *dmabuf);
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struct dma_buf *__nvmap_make_dmabuf(struct nvmap_client *client,
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struct nvmap_handle *handle,
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bool ro_buf);
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int nvmap_get_dmabuf_fd(struct nvmap_client *client,
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struct nvmap_handle *h,
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bool is_ro);
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struct nvmap_handle *nvmap_handle_get_from_dmabuf_fd(
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struct nvmap_client *client,
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int fd);
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int is_nvmap_dmabuf_fd_ro(int fd, bool *is_ro);
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int nvmap_dmabuf_duplicate_gen_fd(struct nvmap_client *client,
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struct dma_buf *dmabuf);
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struct nvmap_vma_list {
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struct list_head list;
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struct vm_area_struct *vma;
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unsigned long save_vm_flags;
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pid_t pid;
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atomic_t ref;
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};
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int is_nvmap_vma(struct vm_area_struct *vma);
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void nvmap_vma_open(struct vm_area_struct *vma);
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extern struct vm_operations_struct nvmap_vma_ops;
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#endif /* __NVMAP_DMABUF_H */
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