/*
 * drivers/video/tegra/nvmap/nvmap_heap.h
 *
 * GPU heap allocator.
 *
 * Copyright (c) 2010-2018, NVIDIA Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#ifndef __NVMAP_HEAP_H
#define __NVMAP_HEAP_H

struct device;
struct nvmap_heap;
struct nvmap_client;

struct nvmap_heap_block {
	phys_addr_t	base;
	unsigned int	type;
	struct nvmap_handle *handle;
};

struct nvmap_platform_carveout;

struct nvmap_heap *nvmap_heap_create(struct device *parent,
				     const struct nvmap_platform_carveout *co,
				     phys_addr_t base, size_t len, void *arg);

void nvmap_heap_destroy(struct nvmap_heap *heap);

struct nvmap_heap_block *nvmap_heap_alloc(struct nvmap_heap *heap,
					  struct nvmap_handle *handle,
					  phys_addr_t *start);

struct nvmap_heap *nvmap_block_to_heap(struct nvmap_heap_block *b);

void nvmap_heap_free(struct nvmap_heap_block *block);

int __init nvmap_heap_init(void);

void nvmap_heap_deinit(void);

int nvmap_flush_heap_block(struct nvmap_client *client,
	struct nvmap_heap_block *block, size_t len, unsigned int prot);

void nvmap_heap_debugfs_init(struct dentry *heap_root, struct nvmap_heap *heap);

int nvmap_query_heap_peer(struct nvmap_heap *heap);
size_t nvmap_query_heap_size(struct nvmap_heap *heap);

#endif