drivers/gpu/drm/i915/gt/shmem_utils.h

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