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https://github.com/tiagovignatti/intel-gpu-tools.git
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7883bc8c1c
The counter check function (residency_accuracy) cares only about the counter delta, so no need to pass it the start/stop values separately. Simplify things to prepare for the upcoming patches. No functional change. Signed-off-by: Imre Deak <imre.deak@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
145 lines
3.9 KiB
C
145 lines
3.9 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 <errno.h>
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#include "drmtest.h"
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#include "intel_chipset.h"
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#define SLEEP_DURATION 3000 // in milliseconds
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#define CODE_TIME 50 // in microseconfs
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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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igt_assert(file);
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scanned = fscanf(file, "%u", &ret);
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igt_assert_eq(scanned, 1);
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fclose(file);
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return ret;
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}
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static int read_rc6_residency(const char *name_of_rc6_residency)
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{
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unsigned int i;
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const int device = drm_get_card();
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char *path ;
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int ret;
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FILE *file;
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int value[2];
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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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ret = asprintf(&path, "/sys/class/drm/card%d/power/rc6_enable", device);
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igt_assert_neq(ret, -1);
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file = fopen(path, "r");
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igt_require(file);
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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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for(i = 0; i < 2; i++)
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{
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sleep(SLEEP_DURATION / 1000);
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ret = asprintf(&path, "/sys/class/drm/card%d/power/%s_residency_ms",device,name_of_rc6_residency);
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igt_assert_neq(ret, -1);
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value[i] = readit(path);
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}
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free(path);
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return value[1] - value[0];
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}
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static void residency_accuracy(unsigned int diff,
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const char *name_of_rc6_residency)
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{
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double ratio;
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ratio = (double)diff / (SLEEP_DURATION + CODE_TIME);
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igt_info("Residency in %s or deeper state: %u ms (ratio to expected duration: %.02f)\n",
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name_of_rc6_residency, diff, ratio);
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igt_assert_f(ratio > 0.9 && ratio <= 1,
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"Sysfs RC6 residency counter is inaccurate.\n");
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}
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igt_main
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{
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int fd;
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int devid = 0;
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int rc6, rc6p, rc6pp, media;
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igt_skip_on_simulation();
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/* Use drm_open_any to verify device existence */
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igt_fixture {
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fd = drm_open_any();
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devid = intel_get_drm_devid(fd);
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close(fd);
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rc6 = read_rc6_residency("rc6");
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if (IS_VALLEYVIEW(devid) || IS_CHERRYVIEW(devid))
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media = read_rc6_residency("media_rc6");
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if (IS_GEN6(devid) || IS_IVYBRIDGE(devid)) {
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rc6p = read_rc6_residency("rc6p");
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rc6pp = read_rc6_residency("rc6pp");
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}
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}
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igt_subtest("rc6-accuracy")
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residency_accuracy(rc6, "rc6");
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igt_subtest("media-rc6-accuracy")
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if (IS_VALLEYVIEW(devid) || IS_CHERRYVIEW(devid))
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residency_accuracy(media, "media_rc6");
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igt_subtest("rc6p-accuracy") {
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if (!IS_GEN6(devid) && !IS_IVYBRIDGE(devid))
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igt_skip("This platform doesn't support RC6p\n");
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residency_accuracy(rc6p, "rc6p");
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}
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igt_subtest("rc6pp-accuracy") {
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if (!IS_GEN6(devid) && !IS_IVYBRIDGE(devid))
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igt_skip("This platform doesn't support RC6pp\n");
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residency_accuracy(rc6pp, "rc6pp");
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}
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}
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