On Fri, Oct 28, 2016 at 11:03:44AM +0100, Chris Wilson wrote: > On Fri, Oct 28, 2016 at 12:31:29PM +0300, Marius Vlad wrote: > > v2: > > - don't read cached values (Chris Wilson) > > - warn on per connector, and fail per mean (Chris Wilson) > > > > These are synthetic: 5us per connector, and 600us for all (as > > threshold). > > > > Signed-off-by: Marius Vlad <[email protected]> > > --- > > tests/Makefile.sources | 2 +- > > tests/kms_sysfs_edid_timing | 25 ---------- > > tests/kms_sysfs_edid_timing.c | 107 > > ++++++++++++++++++++++++++++++++++++++++++ > > 3 files changed, 108 insertions(+), 26 deletions(-) > > delete mode 100755 tests/kms_sysfs_edid_timing > > create mode 100644 tests/kms_sysfs_edid_timing.c > > > > diff --git a/tests/Makefile.sources b/tests/Makefile.sources > > index b1511c6..8af455a 100644 > > --- a/tests/Makefile.sources > > +++ b/tests/Makefile.sources > > @@ -212,6 +212,7 @@ TESTS_progs = \ > > kms_sink_crc_basic \ > > prime_udl \ > > drv_module_reload \ > > + kms_sysfs_edid_timing \ > > $(NULL) > > > > # IMPORTANT: The ZZ_ tests need to be run last! > > @@ -222,7 +223,6 @@ TESTS_scripts_M = \ > > TESTS_scripts = \ > > debugfs_emon_crash \ > > drv_debugfs_reader \ > > - kms_sysfs_edid_timing \ > > sysfs_l3_parity \ > > test_rte_check \ > > tools_test \ > > diff --git a/tests/kms_sysfs_edid_timing b/tests/kms_sysfs_edid_timing > > deleted file mode 100755 > > index 46ea540..0000000 > > --- a/tests/kms_sysfs_edid_timing > > +++ /dev/null > > @@ -1,25 +0,0 @@ > > -#!/bin/bash > > -# > > -# This check the time we take to read the content of all the possible > > connectors. > > -# Without the edid -ENXIO patch > > (http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), > > -# we sometimes take a *really* long time. So let's just check for some > > reasonable timing here > > -# > > - > > -DRM_LIB_ALLOW_NO_MASTER=1 > > - > > -SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )" > > -. $SOURCE_DIR/drm_lib.sh > > - > > -TIME1=$(date +%s%N) > > -cat $(find /sys/devices/|grep drm | grep /status) > /dev/null > > -TIME2=$(date +%s%N) > > - > > -# time in ms > > -RES=$(((TIME2 - TIME1) / 1000000)) > > - > > -if [ $RES -gt 600 ]; then > > - echo "Talking to outputs took ${RES}ms, something is wrong" > > - exit $IGT_EXIT_FAILURE > > -fi > > - > > -exit $IGT_EXIT_SUCCESS > > diff --git a/tests/kms_sysfs_edid_timing.c b/tests/kms_sysfs_edid_timing.c > > new file mode 100644 > > index 0000000..3b8bca0 > > --- /dev/null > > +++ b/tests/kms_sysfs_edid_timing.c > > @@ -0,0 +1,107 @@ > > +/* > > + * Copyright © 2016 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. > > + */ > > +#include "igt.h" > > +#include "igt_debugfs.h" > > +#include "igt_sysfs.h" > > +#include "igt_core.h" > > + > > +#include <dirent.h> > > +#include <fcntl.h> > > +#include <sys/stat.h> > > +#include <time.h> > > + > > +#define USEC_PER_SEC (1000*1000) > > +#define THRESHOLD_PER_CONNECTOR 5 > > +#define THRESHOLD_TOTAL 600 > > + > > +IGT_TEST_DESCRIPTION("This check the time we take to read the content of > > all " > > + "the possible connectors. Without the edid -ENXIO patch " > > + > > "(http://permalink.gmane.org/gmane.comp.video.dri.devel/62083), " > > + "we sometimes take a *really* long time. " > > + "So let's just check for some reasonable timing here"); > > + > > +static uint64_t > > +mean(uint64_t *a, size_t a_len) > > +{ > > + int p; > > + uint64_t __sum; > > + > > + for (p = 0, __sum = 0; p < a_len; p++) { > > + __sum += a[p]; > > + } > > + > > + return (__sum / a_len); > > +} > > See igt_stats.h: igt_mean Alright will use that. > > > +igt_simple_main > > +{ > > + int dir = igt_sysfs_open(-1, NULL); > > Hmm, that will try to find intel - I was hoping to be a little more > generic and do every cardN-connectorM in /sys/class/drm (not > /sys/class/drm/card0 as sysfs_open will return) Right, misunderstood you the first time. > > > + DIR *dirp = fdopendir(dir); > > + struct dirent *de; > > + > > + int i, fd = 0; > > + int fds[32]; > > + > > + uint64_t elapsed, elapsed_mean; > > + uint64_t a[32]; > > + > > + struct stat st; > > + struct timespec start = {}; > > + > > + memset(fds, -1, sizeof(fds)); > > + memset(a, -1, sizeof(a)); > > + > > + while ((de = readdir(dirp))) { > > + > > + if (*de->d_name == '.') > > + continue; > > + > > + if (fstatat(dir, de->d_name, &st, 0)) > > + continue; > > + > > + if (S_ISDIR(st.st_mode) && !strncmp(de->d_name, "card0-", 6)) { > > sysfs_open would have reported the index as assuming card0 fails if vgem > was loaded first, for example. > > > + int dfd = openat(dir, de->d_name, O_RDONLY); > > + igt_assert(dfd > 0); > > + fds[fd++] = dfd; > > + } > > + } > > + closedir(dirp); > > + > > + for (i = 0; i < fd; i++) { > > + igt_sysfs_set(fds[i], "status", "detect"); > > + > > + elapsed = igt_nsec_elapsed(&start); > > + igt_sysfs_get(fds[i], "status"); > > + elapsed = igt_nsec_elapsed(&start); > > + > > + igt_warn_on_f(elapsed > (THRESHOLD_PER_CONNECTOR * > > USEC_PER_SEC), > > + "Threshold per connector exceeded (elapsed %lu ns)\n", elapsed); > > I was suggesting we repeat the probe of each connector several times. > > DIR *dir = opendir("/sys/class/drm"); > while ((de = readdir(dir)) { > struct igt_mean mean = {}; > struct stat st; > char path[128]; > > if (*de->d_name == '.') continue; > snprintf(path, sizeof(path), "/sys/class/drm/%s/status", de->d_name); > if (stat(path, &st) > continue; > > for (int i = 0; i < 15; i++) { > struct timespec tv; > int fd; > > fd = open(path, O_WRONLY); > > igt_nsec_elapsed(&tv); > write(fd, "detect\n", 7); > igt_mean_add(&mean, igt_nsec_elapsed(&tv)); > > close(fd); > } > > if (mean.max > 10e6) /* 10 milisecond */ > igt_warn("%s: probe time exceed 10ms, max=%.2fms, avg=%.2fms\n", > de->d_name, mean.max / 1e6, mean.mean / 1e6); > igt_assert_f(mean.mean < 50e6, > "%s: average probe time exceeded 50ms, max=%.2fms, > avg=%.2fms\n", > de->d_name, mean.max / 1e6, mean.mean / 1e6); > } Okay will do that. > > -- > Chris Wilson, Intel Open Source Technology Centre
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