linux/drivers/gpu/drm/i915/gem/i915_gem_region.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */

#ifndef __I915_GEM_REGION_H__
#define __I915_GEM_REGION_H__

#include <linux/types.h>

struct intel_memory_region;
struct drm_i915_gem_object;
struct sg_table;

struct i915_gem_apply_to_region;

#define I915_BO_INVALID_OFFSET …

/**
 * struct i915_gem_apply_to_region_ops - ops to use when iterating over all
 * region objects.
 */
struct i915_gem_apply_to_region_ops { … };

/**
 * struct i915_gem_apply_to_region - Argument to the struct
 * i915_gem_apply_to_region_ops functions.
 * @ops: The ops for the operation.
 * @ww: Locking context used for the transaction.
 * @interruptible: Whether to perform object locking interruptible.
 *
 * This structure is intended to be embedded in a private struct if needed
 */
struct i915_gem_apply_to_region { … };

void i915_gem_object_init_memory_region(struct drm_i915_gem_object *obj,
					struct intel_memory_region *mem);
void i915_gem_object_release_memory_region(struct drm_i915_gem_object *obj);

struct drm_i915_gem_object *
i915_gem_object_create_region(struct intel_memory_region *mem,
			      resource_size_t size,
			      resource_size_t page_size,
			      unsigned int flags);
struct drm_i915_gem_object *
i915_gem_object_create_region_at(struct intel_memory_region *mem,
				 resource_size_t offset,
				 resource_size_t size,
				 unsigned int flags);

int i915_gem_process_region(struct intel_memory_region *mr,
			    struct i915_gem_apply_to_region *apply);
#endif