| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* |
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| 3 | * Copyright © 2020 Intel Corporation |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef SHMEM_UTILS_H |
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| 7 | #define SHMEM_UTILS_H |
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| 8 | |
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| 9 | #include <linux/types.h> |
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| 10 | |
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| 11 | struct iosys_map; |
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| 12 | struct drm_i915_gem_object; |
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| 13 | struct file; |
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| 14 | |
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| 15 | struct file *shmem_create_from_data(const char *name, void *data, size_t len); |
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| 16 | struct file *shmem_create_from_object(struct drm_i915_gem_object *obj); |
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| 17 | |
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| 18 | void *shmem_pin_map(struct file *file); |
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| 19 | void shmem_unpin_map(struct file *file, void *ptr); |
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| 20 | |
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| 21 | int shmem_read_to_iosys_map(struct file *file, loff_t off, |
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| 22 | struct iosys_map *map, size_t map_off, size_t len); |
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| 23 | int shmem_read(struct file *file, loff_t off, void *dst, size_t len); |
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| 24 | int shmem_write(struct file *file, loff_t off, void *src, size_t len); |
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| 25 | |
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| 26 | #endif /* SHMEM_UTILS_H */ |
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| 27 | |
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