1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2020 Intel Corporation
 4 */
 5
 6#ifndef SHMEM_UTILS_H
 7#define SHMEM_UTILS_H
 8
 9#include <linux/types.h>
10
11struct iosys_map;
12struct drm_i915_gem_object;
13struct file;
14
15struct file *shmem_create_from_data(const char *name, void *data, size_t len);
16struct file *shmem_create_from_object(struct drm_i915_gem_object *obj);
17
18void *shmem_pin_map(struct file *file);
19void shmem_unpin_map(struct file *file, void *ptr);
20
21int shmem_read_to_iosys_map(struct file *file, loff_t off,
22			    struct iosys_map *map, size_t map_off, size_t len);
23int shmem_read(struct file *file, loff_t off, void *dst, size_t len);
24int shmem_write(struct file *file, loff_t off, void *src, size_t len);
25
26#endif /* SHMEM_UTILS_H */