/* Copyright (c) 2010, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that 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 VCM_ALLOC_H
#define VCM_ALLOC_H

#include <linux/list.h>
#include <linux/vcm.h>
#include <linux/vcm_types.h>

#define MAX_NUM_PRIO_POOLS 8

/* Data structure to inform VCM about the memory it manages */
struct physmem_region {
	size_t addr;
	size_t size;
	int chunk_size;
};

/* Mapping between memtypes and physmem_regions based on chunk size */
struct vcm_memtype_map {
	int pool_id[MAX_NUM_PRIO_POOLS];
	int num_pools;
};

int vcm_alloc_pool_idx_to_size(int pool_idx);
int vcm_alloc_idx_to_size(int idx);
int vcm_alloc_get_mem_size(void);
int vcm_alloc_blocks_avail(enum memtype_t memtype, int idx);
int vcm_alloc_get_num_chunks(enum memtype_t memtype);
int vcm_alloc_all_blocks_avail(enum memtarget_t memtype);
int vcm_alloc_count_allocated(enum memtype_t memtype);
void vcm_alloc_print_list(enum memtype_t memtype, int just_allocated);
int vcm_alloc_idx_to_size(int idx);
int vcm_alloc_destroy(void);
int vcm_alloc_init(struct physmem_region *mem, int n_regions,
		   struct vcm_memtype_map *mt_map, int n_mt);
int vcm_alloc_free_blocks(enum memtype_t memtype,
			  struct phys_chunk *alloc_head);
int vcm_alloc_num_blocks(int num, enum memtype_t memtype,
			 int idx, /* chunk size */
			 struct phys_chunk *alloc_head);
int vcm_alloc_max_munch(int len, enum memtype_t memtype,
			struct phys_chunk *alloc_head);

/* bring-up init, destroy */
int vcm_sys_init(struct physmem_region *mem, int n_regions,
		 struct vcm_memtype_map *mt_map, int n_mt,
		 void *cont_pa, unsigned int cont_sz);

int vcm_sys_destroy(void);

#endif /* VCM_ALLOC_H */