diff mbox

[i-g-t,3/3] tests/kms_sysfs_edid_timing: Convert sh script to C version.

Message ID 20161020193649.11701-4-marius.c.vlad@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Marius Vlad Oct. 20, 2016, 7:36 p.m. UTC
While at it, make available time macros to other users.

Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
---
 benchmarks/gem_syslatency.c   |  4 ---
 lib/igt_core.c                |  3 --
 lib/igt_core.h                |  3 ++
 tests/Makefile.sources        |  2 +-
 tests/drv_hangman.c           |  1 -
 tests/gem_wait.c              |  4 ---
 tests/kms_flip.c              |  3 --
 tests/kms_sysfs_edid_timing   | 25 -------------
 tests/kms_sysfs_edid_timing.c | 82 +++++++++++++++++++++++++++++++++++++++++++
 9 files changed, 86 insertions(+), 41 deletions(-)
 delete mode 100755 tests/kms_sysfs_edid_timing
 create mode 100644 tests/kms_sysfs_edid_timing.c

Comments

Chris Wilson Oct. 20, 2016, 7:58 p.m. UTC | #1
On Thu, Oct 20, 2016 at 10:36:49PM +0300, Marius Vlad wrote:
> While at it, make available time macros to other users.
> 
> Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
> ---
>  benchmarks/gem_syslatency.c   |  4 ---
>  lib/igt_core.c                |  3 --
>  lib/igt_core.h                |  3 ++
>  tests/Makefile.sources        |  2 +-
>  tests/drv_hangman.c           |  1 -
>  tests/gem_wait.c              |  4 ---
>  tests/kms_flip.c              |  3 --
>  tests/kms_sysfs_edid_timing   | 25 -------------
>  tests/kms_sysfs_edid_timing.c | 82 +++++++++++++++++++++++++++++++++++++++++++
>  9 files changed, 86 insertions(+), 41 deletions(-)
>  delete mode 100755 tests/kms_sysfs_edid_timing
>  create mode 100644 tests/kms_sysfs_edid_timing.c
> 
> diff --git a/benchmarks/gem_syslatency.c b/benchmarks/gem_syslatency.c
> index 6cad3a0..83bfac7 100644
> --- a/benchmarks/gem_syslatency.c
> +++ b/benchmarks/gem_syslatency.c
> @@ -133,10 +133,6 @@ static void *gem_busyspin(void *arg)
>  	return NULL;
>  }
>  
> -#define MSEC_PER_SEC (1000)
> -#define USEC_PER_SEC (1000 * MSEC_PER_SEC)
> -#define NSEC_PER_SEC (1000 * USEC_PER_SEC)
> -
>  static double elapsed(const struct timespec *a, const struct timespec *b)
>  {
>  	return 1e9*(b->tv_sec - a->tv_sec) + (b->tv_nsec - a ->tv_nsec);
> diff --git a/lib/igt_core.c b/lib/igt_core.c
> index 9cd5f98..f64c809 100644
> --- a/lib/igt_core.c
> +++ b/lib/igt_core.c
> @@ -398,9 +398,6 @@ error:
>  	return -errno;
>  }
>  
> -#define MSEC_PER_SEC (1000)
> -#define USEC_PER_SEC (1000*MSEC_PER_SEC)
> -#define NSEC_PER_SEC (1000*USEC_PER_SEC)
>  uint64_t igt_nsec_elapsed(struct timespec *start)
>  {
>  	struct timespec now;
> diff --git a/lib/igt_core.h b/lib/igt_core.h
> index 03be757..a45e334 100644
> --- a/lib/igt_core.h
> +++ b/lib/igt_core.h
> @@ -847,6 +847,9 @@ extern enum igt_log_level igt_log_level;
>  void igt_set_timeout(unsigned int seconds,
>  		     const char *op);
>  
> +#define MSEC_PER_SEC (1000)
> +#define USEC_PER_SEC (1000*MSEC_PER_SEC)
> +#define NSEC_PER_SEC (1000*USEC_PER_SEC)
>  /**
>   * igt_nsec_elapsed:
>   * @start: measure from this point in time
> diff --git a/tests/Makefile.sources b/tests/Makefile.sources
> index c35ea11..969ef0b 100644
> --- a/tests/Makefile.sources
> +++ b/tests/Makefile.sources
> @@ -210,6 +210,7 @@ TESTS_progs = \
>  	kms_mmap_write_crc \
>  	kms_pwrite_crc \
>  	kms_sink_crc_basic \
> +	kms_sysfs_edid_timing \
>  	prime_udl \
>  	drv_module_reload_basic \
>  	$(NULL)
> @@ -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/drv_hangman.c b/tests/drv_hangman.c
> index 953a4c6..19d809c 100644
> --- a/tests/drv_hangman.c
> +++ b/tests/drv_hangman.c
> @@ -282,7 +282,6 @@ static void test_error_state_capture(unsigned ring_id,
>   * case and it takes a lot more time to wrap, so the acthd can potentially keep
>   * increasing for a long time
>   */
> -#define NSEC_PER_SEC	1000000000LL
>  static void hangcheck_unterminated(void)
>  {
>  	int fd;
> diff --git a/tests/gem_wait.c b/tests/gem_wait.c
> index b4127de..db04958 100644
> --- a/tests/gem_wait.c
> +++ b/tests/gem_wait.c
> @@ -83,10 +83,6 @@ static void sigiter(int sig, siginfo_t *info, void *arg)
>  	__sync_synchronize();
>  }
>  
> -#define MSEC_PER_SEC (1000)
> -#define USEC_PER_SEC (1000 * MSEC_PER_SEC)
> -#define NSEC_PER_SEC (1000 * USEC_PER_SEC)
> -
>  #define BUSY 1
>  #define HANG 2
>  static void basic(int fd, unsigned engine, unsigned flags)
> diff --git a/tests/kms_flip.c b/tests/kms_flip.c
> index 7646aaf..842bc3a 100644
> --- a/tests/kms_flip.c
> +++ b/tests/kms_flip.c
> @@ -83,9 +83,6 @@
>  #define DRM_CAP_TIMESTAMP_MONOTONIC 6
>  #endif
>  
> -#define USEC_PER_SEC 1000000L
> -#define NSEC_PER_SEC 1000000000L
> -
>  drmModeRes *resources;
>  int drm_fd;
>  static drm_intel_bufmgr *bufmgr;
> 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..8de4b78
> --- /dev/null
> +++ b/tests/kms_sysfs_edid_timing.c
> @@ -0,0 +1,82 @@
> +/*
> + * 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 MSEC_PER_SEC (1000)
> +#define USEC_PER_SEC (1000*MSEC_PER_SEC)
> +#define NSEC_PER_SEC (1000*USEC_PER_SEC)
> +
> +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");
> +
> +igt_simple_main
> +{
> +	int dir = igt_sysfs_open(-1, NULL);
> +	DIR *dirp = fdopendir(dir);
> +	struct dirent *de;
> +
> +	int i, fd = 0;
> +	int fds[32];
> +	uint64_t elapsed;
> +
> +	struct stat st;
> +	struct timespec start = {};
> +
> +	memset(fds, -1, sizeof(fds));
> +	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) == 0) {

Whilst you are here, you may as well generalise this to work on all
outputs with an edid.

> +			int dfd = openat(dir, de->d_name, O_RDONLY);
> +			igt_assert(dfd > 0);
> +			fds[fd++] = dfd;
> +		}
> +	}
> +	closedir(dirp);
> +
> +	elapsed = igt_nsec_elapsed(&start);
> +	for (i = 0; i < fd - 1; i++) {
> +		igt_assert(igt_sysfs_get(fds[i], "status") != NULL);

This is reading the cached status. This no longer performs the original
intentional.

igt_sysfs_set(fd[i], "status", "detect");

> +		close(fds[i]);
> +	}
> +	elapsed = igt_nsec_elapsed(&start);
> +
> +	igt_fail_on(elapsed > 600 * USEC_PER_SEC);

You should time each individually, and repeat a few times to identify
outliers. (Warn if outlier > threshold, fail if mean > threshold).
-Chris
diff mbox

Patch

diff --git a/benchmarks/gem_syslatency.c b/benchmarks/gem_syslatency.c
index 6cad3a0..83bfac7 100644
--- a/benchmarks/gem_syslatency.c
+++ b/benchmarks/gem_syslatency.c
@@ -133,10 +133,6 @@  static void *gem_busyspin(void *arg)
 	return NULL;
 }
 
-#define MSEC_PER_SEC (1000)
-#define USEC_PER_SEC (1000 * MSEC_PER_SEC)
-#define NSEC_PER_SEC (1000 * USEC_PER_SEC)
-
 static double elapsed(const struct timespec *a, const struct timespec *b)
 {
 	return 1e9*(b->tv_sec - a->tv_sec) + (b->tv_nsec - a ->tv_nsec);
diff --git a/lib/igt_core.c b/lib/igt_core.c
index 9cd5f98..f64c809 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -398,9 +398,6 @@  error:
 	return -errno;
 }
 
-#define MSEC_PER_SEC (1000)
-#define USEC_PER_SEC (1000*MSEC_PER_SEC)
-#define NSEC_PER_SEC (1000*USEC_PER_SEC)
 uint64_t igt_nsec_elapsed(struct timespec *start)
 {
 	struct timespec now;
diff --git a/lib/igt_core.h b/lib/igt_core.h
index 03be757..a45e334 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -847,6 +847,9 @@  extern enum igt_log_level igt_log_level;
 void igt_set_timeout(unsigned int seconds,
 		     const char *op);
 
+#define MSEC_PER_SEC (1000)
+#define USEC_PER_SEC (1000*MSEC_PER_SEC)
+#define NSEC_PER_SEC (1000*USEC_PER_SEC)
 /**
  * igt_nsec_elapsed:
  * @start: measure from this point in time
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index c35ea11..969ef0b 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -210,6 +210,7 @@  TESTS_progs = \
 	kms_mmap_write_crc \
 	kms_pwrite_crc \
 	kms_sink_crc_basic \
+	kms_sysfs_edid_timing \
 	prime_udl \
 	drv_module_reload_basic \
 	$(NULL)
@@ -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/drv_hangman.c b/tests/drv_hangman.c
index 953a4c6..19d809c 100644
--- a/tests/drv_hangman.c
+++ b/tests/drv_hangman.c
@@ -282,7 +282,6 @@  static void test_error_state_capture(unsigned ring_id,
  * case and it takes a lot more time to wrap, so the acthd can potentially keep
  * increasing for a long time
  */
-#define NSEC_PER_SEC	1000000000LL
 static void hangcheck_unterminated(void)
 {
 	int fd;
diff --git a/tests/gem_wait.c b/tests/gem_wait.c
index b4127de..db04958 100644
--- a/tests/gem_wait.c
+++ b/tests/gem_wait.c
@@ -83,10 +83,6 @@  static void sigiter(int sig, siginfo_t *info, void *arg)
 	__sync_synchronize();
 }
 
-#define MSEC_PER_SEC (1000)
-#define USEC_PER_SEC (1000 * MSEC_PER_SEC)
-#define NSEC_PER_SEC (1000 * USEC_PER_SEC)
-
 #define BUSY 1
 #define HANG 2
 static void basic(int fd, unsigned engine, unsigned flags)
diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index 7646aaf..842bc3a 100644
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -83,9 +83,6 @@ 
 #define DRM_CAP_TIMESTAMP_MONOTONIC 6
 #endif
 
-#define USEC_PER_SEC 1000000L
-#define NSEC_PER_SEC 1000000000L
-
 drmModeRes *resources;
 int drm_fd;
 static drm_intel_bufmgr *bufmgr;
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..8de4b78
--- /dev/null
+++ b/tests/kms_sysfs_edid_timing.c
@@ -0,0 +1,82 @@ 
+/*
+ * 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 MSEC_PER_SEC (1000)
+#define USEC_PER_SEC (1000*MSEC_PER_SEC)
+#define NSEC_PER_SEC (1000*USEC_PER_SEC)
+
+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");
+
+igt_simple_main
+{
+	int dir = igt_sysfs_open(-1, NULL);
+	DIR *dirp = fdopendir(dir);
+	struct dirent *de;
+
+	int i, fd = 0;
+	int fds[32];
+	uint64_t elapsed;
+
+	struct stat st;
+	struct timespec start = {};
+
+	memset(fds, -1, sizeof(fds));
+	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) == 0) {
+			int dfd = openat(dir, de->d_name, O_RDONLY);
+			igt_assert(dfd > 0);
+			fds[fd++] = dfd;
+		}
+	}
+	closedir(dirp);
+
+	elapsed = igt_nsec_elapsed(&start);
+	for (i = 0; i < fd - 1; i++) {
+		igt_assert(igt_sysfs_get(fds[i], "status") != NULL);
+		close(fds[i]);
+	}
+	elapsed = igt_nsec_elapsed(&start);
+
+	igt_fail_on(elapsed > 600 * USEC_PER_SEC);
+}