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/*-
 *   BSD LICENSE
 * 
 *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
 *   All rights reserved.
 * 
 *   Redistribution and use in source and binary forms, with or without 
 *   modification, are permitted provided that the following conditions 
 *   are met:
 * 
 *     * Redistributions of source code must retain the above copyright 
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright 
 *       notice, this list of conditions and the following disclaimer in 
 *       the documentation and/or other materials provided with the 
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its 
 *       contributors may be used to endorse or promote products derived 
 *       from this software without specific prior written permission.
 * 
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <stdarg.h>
#include <inttypes.h>
#include <sys/queue.h>

#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_log.h>

#include "eal_private.h"

/*
 * Return a pointer to a read-only table of struct rte_physmem_desc
 * elements, containing the layout of all addressable physical
 * memory. The last element of the table contains a NULL address.
 */
const struct rte_memseg *
rte_eal_get_physmem_layout(void)
{
	return rte_eal_get_configuration()->mem_config->memseg;
}


/* get the total size of memory */
uint64_t
rte_eal_get_physmem_size(void)
{
	const struct rte_mem_config *mcfg;
	unsigned i = 0;
	uint64_t total_len = 0;

	/* get pointer to global configuration */
	mcfg = rte_eal_get_configuration()->mem_config;

	for (i=0; i<RTE_MAX_MEMSEG; i++) {
		if (mcfg->memseg[i].addr == NULL)
			break;

		total_len += mcfg->memseg[i].len;
	}

	return total_len;
}

/* Dump the physical memory layout on console */
void
rte_dump_physmem_layout(void)
{
	const struct rte_mem_config *mcfg;
	unsigned i = 0;

	/* get pointer to global configuration */
	mcfg = rte_eal_get_configuration()->mem_config;

	for (i=0; i<RTE_MAX_MEMSEG; i++) {
		if (mcfg->memseg[i].addr == NULL)
			break;
		printf("phys:0x%"PRIx64", len:0x%"PRIx64", virt:%p, "
		       "socket_id:%"PRId32"\n",
		       mcfg->memseg[i].phys_addr,
		       mcfg->memseg[i].len,
		       mcfg->memseg[i].addr,
		       mcfg->memseg[i].socket_id);
	}
}

/* return the number of memory channels */
unsigned rte_memory_get_nchannel(void)
{
	return rte_eal_get_configuration()->mem_config->nchannel;
}

/* return the number of memory rank */
unsigned rte_memory_get_nrank(void)
{
	return rte_eal_get_configuration()->mem_config->nrank;
}