mirror of
git://nv-tegra.nvidia.com/linux-nv-oot.git
synced 2025-12-22 09:11:26 +03:00
44a095795e
- Move the code from nvmap_priv.h to relevant units. - Delete nvmap_priv.h JIRA TMM-5751 Change-Id: Ic0df459fb9db0714a1b2a65b463fae8adbbc49f1 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3232636 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
|
|
#ifndef __NVMAP_DMABUF_H
|
|
#define __NVMAP_DMABUF_H
|
|
|
|
#define __DMA_ATTR(attrs) attrs
|
|
#define DEFINE_DMA_ATTRS(attrs) unsigned long attrs = 0
|
|
|
|
/**
|
|
* dma_set_attr - set a specific attribute
|
|
* @attr: attribute to set
|
|
* @attrs: struct dma_attrs (may be NULL)
|
|
*/
|
|
#define dma_set_attr(attr, attrs) (attrs |= attr)
|
|
|
|
/**
|
|
* dma_get_attr - check for a specific attribute
|
|
* @attr: attribute to set
|
|
* @attrs: struct dma_attrs (may be NULL)
|
|
*/
|
|
#define dma_get_attr(attr, attrs) (attrs & attr)
|
|
|
|
int nvmap_dmabuf_stash_init(void);
|
|
void nvmap_dmabuf_stash_deinit(void);
|
|
|
|
bool dmabuf_is_nvmap(struct dma_buf *dmabuf);
|
|
|
|
struct dma_buf *__nvmap_make_dmabuf(struct nvmap_client *client,
|
|
struct nvmap_handle *handle,
|
|
bool ro_buf);
|
|
|
|
int nvmap_get_dmabuf_fd(struct nvmap_client *client,
|
|
struct nvmap_handle *h,
|
|
bool is_ro);
|
|
|
|
struct nvmap_handle *nvmap_handle_get_from_dmabuf_fd(
|
|
struct nvmap_client *client,
|
|
int fd);
|
|
|
|
int is_nvmap_dmabuf_fd_ro(int fd, bool *is_ro);
|
|
|
|
int nvmap_dmabuf_duplicate_gen_fd(struct nvmap_client *client,
|
|
struct dma_buf *dmabuf);
|
|
|
|
struct nvmap_vma_list {
|
|
struct list_head list;
|
|
struct vm_area_struct *vma;
|
|
unsigned long save_vm_flags;
|
|
pid_t pid;
|
|
atomic_t ref;
|
|
};
|
|
|
|
struct nvmap_vma_priv {
|
|
struct nvmap_handle *handle;
|
|
size_t offs;
|
|
atomic_t count; /* number of processes cloning the VMA */
|
|
};
|
|
|
|
int is_nvmap_vma(struct vm_area_struct *vma);
|
|
|
|
void nvmap_vma_open(struct vm_area_struct *vma);
|
|
|
|
extern struct vm_operations_struct nvmap_vma_ops;
|
|
|
|
#endif /* __NVMAP_DMABUF_H */
|