/*-
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 *
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 *   All rights reserved.
 *
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 *   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.
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 *       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
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 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 *   (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 <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <rte_config.h>
#include <rte_eal.h>

#include "spdk/env.h"

static const char *ealargs[] = {
	"vtophys",
	"-c 0x1",
	"-n 4",
};

static int
vtophys_negative_test(void)
{
	void *p = NULL;
	int i;
	unsigned int size = 1;
	int rc = 0;

	for (i = 0; i < 31; i++) {
		p = malloc(size);
		if (p == NULL)
			continue;

		if (spdk_vtophys(p) != SPDK_VTOPHYS_ERROR) {
			rc = -1;
			printf("Err: VA=%p is mapped to a huge_page,\n", p);
			free(p);
			break;
		}

		free(p);
		size = size << 1;
	}

	/* Test addresses that are not in the valid x86-64 usermode range */

	if (spdk_vtophys((void *)0x0000800000000000ULL) != SPDK_VTOPHYS_ERROR) {
		rc = -1;
		printf("Err: kernel-mode address incorrectly allowed\n");
	}

	if (!rc)
		printf("vtophys_negative_test passed\n");
	else
		printf("vtophys_negative_test failed\n");

	return rc;
}

static int
vtophys_positive_test(void)
{
	void *p = NULL;
	int i;
	unsigned int size = 1;
	int rc = 0;

	for (i = 0; i < 31; i++) {
		p = spdk_zmalloc(size, 512, NULL);
		if (p == NULL)
			continue;

		if (spdk_vtophys(p) == SPDK_VTOPHYS_ERROR) {
			rc = -1;
			printf("Err: VA=%p is not mapped to a huge_page,\n", p);
			spdk_free(p);
			break;
		}

		spdk_free(p);
		size = size << 1;
	}

	if (!rc)
		printf("vtophys_positive_test passed\n");
	else
		printf("vtophys_positive_test failed\n");

	return rc;
}


int
main(int argc, char **argv)
{
	int rc;

	rc = rte_eal_init(sizeof(ealargs) / sizeof(ealargs[0]),
			  (char **)(void *)(uintptr_t)ealargs);

	if (rc < 0) {
		fprintf(stderr, "Could not init eal\n");
		exit(1);
	}

	rc = vtophys_negative_test();
	if (rc < 0)
		return rc;

	rc = vtophys_positive_test();
	return rc;
}