mirror of
https://github.com/tiagovignatti/intel-gpu-tools.git
synced 2025-06-08 16:36:14 +00:00
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
|
|
* Copyright © 2012 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:
|
|
* Ben Widawsky <ben@bwidawsk.net>
|
|
*
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "drmtest.h"
|
|
|
|
#define SLEEP_DURATION 3000 // in milliseconds
|
|
#define RC6_FUDGE 900 // in milliseconds
|
|
|
|
static unsigned int readit(const char *path)
|
|
{
|
|
unsigned int ret;
|
|
int scanned;
|
|
|
|
FILE *file;
|
|
file = fopen(path, "r");
|
|
if (file == NULL) {
|
|
fprintf(stderr, "Couldn't open %s (%d)\n", path, errno);
|
|
abort();
|
|
}
|
|
scanned = fscanf(file, "%u", &ret);
|
|
igt_assert(scanned == 1);
|
|
|
|
fclose(file);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
const int device = drm_get_card();
|
|
char *path, *pathp, *pathpp;
|
|
int fd, ret;
|
|
unsigned int value1, value1p, value1pp, value2, value2p, value2pp;
|
|
FILE *file;
|
|
int diff;
|
|
|
|
igt_skip_on_simulation();
|
|
|
|
/* Use drm_open_any to verify device existence */
|
|
fd = drm_open_any();
|
|
close(fd);
|
|
|
|
ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_enable", device);
|
|
igt_assert(ret != -1);
|
|
|
|
/* For some reason my ivb isn't idle even after syncing up with the gpu.
|
|
* Let's add a sleept just to make it happy. */
|
|
sleep(5);
|
|
|
|
file = fopen(path, "r");
|
|
igt_require(file);
|
|
|
|
/* claim success if no rc6 enabled. */
|
|
if (readit(path) == 0)
|
|
igt_success();
|
|
|
|
ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_residency_ms", device);
|
|
igt_assert(ret != -1);
|
|
ret = asprintf(&pathp, "/sys/class/drm/card%d/power/rc6p_residency_ms", device);
|
|
igt_assert(ret != -1);
|
|
ret = asprintf(&pathpp, "/sys/class/drm/card%d/power/rc6pp_residency_ms", device);
|
|
igt_assert(ret != -1);
|
|
|
|
value1 = readit(path);
|
|
value1p = readit(pathp);
|
|
value1pp = readit(pathpp);
|
|
sleep(SLEEP_DURATION / 1000);
|
|
value2 = readit(path);
|
|
value2p = readit(pathp);
|
|
value2pp = readit(pathpp);
|
|
|
|
free(pathpp);
|
|
free(pathp);
|
|
free(path);
|
|
|
|
diff = (value2pp - value1pp) +
|
|
(value2p - value1p) +
|
|
(value2 - value1);
|
|
|
|
if (diff > (SLEEP_DURATION + RC6_FUDGE)) {
|
|
fprintf(stderr, "Diff was too high. That is unpossible\n");
|
|
igt_fail(1);
|
|
}
|
|
if (diff < (SLEEP_DURATION - RC6_FUDGE)) {
|
|
fprintf(stderr, "GPU was not in RC6 long enough. Check that "
|
|
"the GPU is as idle as possible (ie. no X, "
|
|
"running and running no other tests)\n");
|
|
igt_fail(1);
|
|
}
|
|
|
|
igt_success();
|
|
}
|