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https://github.com/tiagovignatti/intel-gpu-tools.git
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5951ffb6a0
It's unused. Also most of our tests failed to ask for the right type of drm fd anyway. So it's imo better to just let them fall over when they don't get master but want it, like they already do today. This also allows us to garbage-collect the master parameter to drm_get_card and associated code. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Ben Widawsky <ben@bwidawsk.net>
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*
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "drmtest.h"
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#define SLEEP_DURATION 3000 // in milliseconds
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#define RC6_FUDGE 900 // in milliseconds
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static unsigned int readit(const char *path)
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{
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unsigned int ret;
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int scanned;
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FILE *file;
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file = fopen(path, "r");
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if (file == NULL) {
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fprintf(stderr, "Couldn't open %s (%d)\n", path, errno);
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abort();
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}
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scanned = fscanf(file, "%u", &ret);
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igt_assert(scanned == 1);
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fclose(file);
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return ret;
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}
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int main(int argc, char *argv[])
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{
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const int device = drm_get_card();
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char *path, *pathp, *pathpp;
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int fd, ret;
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unsigned int value1, value1p, value1pp, value2, value2p, value2pp;
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FILE *file;
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int diff;
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igt_skip_on_simulation();
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/* Use drm_open_any to verify device existence */
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fd = drm_open_any();
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close(fd);
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ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_enable", device);
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igt_assert(ret != -1);
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/* For some reason my ivb isn't idle even after syncing up with the gpu.
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* Let's add a sleept just to make it happy. */
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sleep(5);
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file = fopen(path, "r");
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if (!file) {
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printf("kernel too old or rc6 not supported on this platform.\n");
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igt_skip();
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}
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/* claim success if no rc6 enabled. */
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if (readit(path) == 0)
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igt_success();
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ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_residency_ms", device);
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igt_assert(ret != -1);
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ret = asprintf(&pathp, "/sys/class/drm/card%d/power/rc6p_residency_ms", device);
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igt_assert(ret != -1);
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ret = asprintf(&pathpp, "/sys/class/drm/card%d/power/rc6pp_residency_ms", device);
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igt_assert(ret != -1);
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value1 = readit(path);
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value1p = readit(pathp);
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value1pp = readit(pathpp);
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sleep(SLEEP_DURATION / 1000);
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value2 = readit(path);
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value2p = readit(pathp);
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value2pp = readit(pathpp);
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free(pathpp);
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free(pathp);
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free(path);
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diff = (value2pp - value1pp) +
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(value2p - value1p) +
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(value2 - value1);
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if (diff > (SLEEP_DURATION + RC6_FUDGE)) {
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fprintf(stderr, "Diff was too high. That is unpossible\n");
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igt_fail(1);
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}
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if (diff < (SLEEP_DURATION - RC6_FUDGE)) {
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fprintf(stderr, "GPU was not in RC6 long enough. Check that "
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"the GPU is as idle as possible (ie. no X, "
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"running and running no other tests)\n");
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igt_fail(1);
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}
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igt_success();
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}
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