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/*
* Copyright © 2011-2015 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Chris Wilson <chris@chris-wilson.co.uk>
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <time.h>
#include "drm.h"
#include "ioctl_wrappers.h"
#include "drmtest.h"
#include "igt_aux.h"
#include "igt_stats.h"
#define OBJECT_SIZE (1<<23)
static uint64_t elapsed(const struct timespec *start,
const struct timespec *end)
{
return 1000000000ULL*(end->tv_sec - start->tv_sec) + (end->tv_nsec - start->tv_nsec);
}
int main(int argc, char **argv)
{
int fd = drm_open_driver(DRIVER_INTEL);
int domain = I915_GEM_DOMAIN_GTT;
enum dir { READ, WRITE } dir = READ;
void *buf = malloc(OBJECT_SIZE);
uint32_t handle;
int reps = 13;
int c, size;
while ((c = getopt (argc, argv, "D:d:r:")) != -1) {
switch (c) {
case 'd':
if (strcmp(optarg, "cpu") == 0)
domain = I915_GEM_DOMAIN_CPU;
else if (strcmp(optarg, "gtt") == 0)
domain = I915_GEM_DOMAIN_GTT;
break;
case 'D':
if (strcmp(optarg, "read") == 0)
dir = READ;
else if (strcmp(optarg, "write") == 0)
dir = WRITE;
else
abort();
break;
case 'r':
reps = atoi(optarg);
if (reps < 1)
reps = 1;
break;
default:
break;
}
}
handle = gem_create(fd, OBJECT_SIZE);
for (size = 1; size <= OBJECT_SIZE; size <<= 1) {
igt_stats_t stats;
int n;
igt_stats_init_with_size(&stats, reps);
for (n = 0; n < reps; n++) {
struct timespec start, end;
gem_set_domain(fd, handle, domain, domain);
clock_gettime(CLOCK_MONOTONIC, &start);
if (dir == READ)
gem_read(fd, handle, 0, buf, size);
else
gem_write(fd, handle, 0, buf, size);
clock_gettime(CLOCK_MONOTONIC, &end);
igt_stats_push(&stats, elapsed(&start, &end));
}
printf("%7.3f\n", igt_stats_get_trimean(&stats)/1000);
igt_stats_fini(&stats);
}
return 0;
}
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