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 | |
11 | struct iosys_map; |
12 | struct drm_i915_gem_object; |
13 | struct file; |
14 | |
15 | struct file *shmem_create_from_data(const char *name, void *data, size_t len); |
16 | struct file *shmem_create_from_object(struct drm_i915_gem_object *obj); |
17 | |
18 | void *shmem_pin_map(struct file *file); |
19 | void shmem_unpin_map(struct file *file, void *ptr); |
20 | |
21 | int shmem_read_to_iosys_map(struct file *file, loff_t off, |
22 | struct iosys_map *map, size_t map_off, size_t len); |
23 | int shmem_read(struct file *file, loff_t off, void *dst, size_t len); |
24 | int shmem_write(struct file *file, loff_t off, void *src, size_t len); |
25 | |
26 | #endif /* SHMEM_UTILS_H */ |
27 | |