[PATCH i-g-t 2/3] tests/drv_module_reload_basic: Convert sh script to C version.

Marius Vlad
2016-10-20T19:30:40Z

Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
---
tests/Makefile.sources | 2 +-
tests/drv_module_reload_basic | 97 -----------------------
tests/drv_module_reload_basic.c | 166 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 167 insertions(+), 98 deletions(-)
delete mode 100755 tests/drv_module_reload_basic
create mode 100644 tests/drv_module_reload_basic.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 6d081c3..c35ea11 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -211,6 +211,7 @@ TESTS_progs = \
kms_pwrite_crc \
kms_sink_crc_basic \
prime_udl \
+ drv_module_reload_basic \
$(NULL)

# IMPORTANT: The ZZ_ tests need to be run last!
@@ -221,7 +222,6 @@ TESTS_scripts_M = \
TESTS_scripts = \
debugfs_emon_crash \
drv_debugfs_reader \
- drv_module_reload_basic \
kms_sysfs_edid_timing \
sysfs_l3_parity \
test_rte_check \
diff --git a/tests/drv_module_reload_basic b/tests/drv_module_reload_basic
deleted file mode 100755
index a8d628d..0000000
--- a/tests/drv_module_reload_basic
+++ /dev/null
@@ -1,97 +0,0 @@
-#!/bin/bash
-#
-# Testcase: Reload the drm module
-#
-# ... we've broken this way too often :(
-#
-
-SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
-. $SOURCE_DIR/drm_lib.sh
-
-# no other drm service should be running, so we can just unbind
-
-# return 0 if module by name $1 is loaded according to lsmod
-function mod_loaded()
-{
- lsmod | grep -w "^$1" &> /dev/null
-}
-
-function reload() {
- local snd_hda_intel_unloaded
-
- echo Reloading i915.ko with $*
-
- # we must kick away fbcon (but only fbcon)
- for vtcon in /sys/class/vtconsole/vtcon*/ ; do
- if grep "frame buffer device" $vtcon/name > /dev/null ; then
- echo unbinding $vtcon: `cat $vtcon/name`
- echo 0 > $vtcon/bind
- fi
- done
-
- # The sound driver uses our power well
- pkill alsactl
- snd_hda_intel_unloaded=0
- if mod_loaded snd_hda_intel; then
- rmmod snd_hda_intel && snd_hda_intel_unloaded=1
- fi
-
- # gen5 only
- if mod_loaded intel_ips; then
- rmmod intel_ips
- fi
- rmmod i915 || return $IGT_EXIT_SKIP
- #ignore errors in intel-gtt, often built-in
- rmmod intel-gtt &> /dev/null
- # drm may be used by other devices (nouveau, radeon, udl, etc)
- rmmod drm_kms_helper &> /dev/null
- rmmod drm &> /dev/null
-
- if mod_loaded i915; then
- echo WARNING: i915.ko still loaded!
- return $IGT_EXIT_FAILURE
- else
- echo module successfully unloaded
- fi
-
- modprobe i915 $*
-
- if [ -f /sys/class/vtconsole/vtcon1/bind ]; then
- echo 1 > /sys/class/vtconsole/vtcon1/bind
- fi
-
- modprobe -q snd_hda_intel || return $snd_hda_intel_unloaded
-}
-
-function finish_load() {
- # does the device exist?
- if $SOURCE_DIR/gem_alive > /dev/null ; then
- echo "module successfully loaded again"
- else
- echo "failed to reload module successfully"
- return $IGT_EXIT_FAILURE
- fi
-
- # then try to run something
- if ! $SOURCE_DIR/gem_exec_store > /dev/null ; then
- echo "failed to execute a simple batch after reload"
- return $IGT_EXIT_FAILURE
- fi
-
- return $IGT_EXIT_SUCCESS
-}
-
-hda_dynamic_debug_enable
-
-reload || exit $?
-finish_load || exit $?
-
-# Repeat the module reload trying to to generate faults
-for i in $(seq 1 4); do
- reload inject_load_failure=$i
-done
-
-reload || exit $?
-finish_load
-
-exit $?
diff --git a/tests/drv_module_reload_basic.c b/tests/drv_module_reload_basic.c
new file mode 100644
index 0000000..d36afde
--- /dev/null
+++ b/tests/drv_module_reload_basic.c
@@ -0,0 +1,166 @@
+/*
+ * 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_aux.h"
+#include "igt_sysfs.h"
+#include "igt_core.h"
+
+#include <dirent.h>
+#include <sys/utsname.h>
+#include <linux/limits.h>
+#include <signal.h>
+#include <libgen.h>
+
+#include <libkmod.h>
+#include <proc/readproc.h>
+
+static const char *tests[] = {
+ "gem_alive", "gem_exec_store"
+};
+
+static int
+reload(const char *opts_i915)
+{
+ kick_fbcon(0);
+
+ if (opts_i915)
+ igt_info("Reloading i915 with %s\n\n", opts_i915);
+
+ if (igt_lsmod_has_module("snd_hda_intel")) {
+ if (igt_pkill(SIGTERM, "alsactl") == -1) {
+ return IGT_EXIT_FAILURE;
+ }
+ if (igt_rmmod("snd_hda_intel", false) == -1)
+ return IGT_EXIT_FAILURE;
+ }
+
+ /* gen5 */
+ if (igt_lsmod_has_module("intel_ips")) {
+ igt_rmmod("intel_ips", false);
+ }
+
+ if (igt_rmmod("i915", false) == -1) {
+ return IGT_EXIT_SKIP;
+ }
+
+ igt_info("i915.ko has been unloaded!\n");
+
+ if (igt_lsmod_has_module("intel-gtt")) {
+ igt_rmmod("intel-gtt", false);
+ }
+
+ igt_rmmod("drm_kms_helper", false);
+ igt_rmmod("drm", false);
+
+ if (igt_lsmod_has_module("i915")) {
+ igt_info("WARNING: i915.ko still loaded!\n");
+ return IGT_EXIT_FAILURE;
+ } else {
+ igt_info("module successfully unloaded\n");
+ }
+
+ /* we do not have automatic loading of dependencies */
+ igt_insmod("drm", NULL);
+ igt_insmod("drm_kms_helper", NULL);
+
+ if (igt_insmod("i915", opts_i915) == -1) {
+ igt_info("Could not load i915\n");
+ return IGT_EXIT_FAILURE;
+ }
+
+ kick_fbcon(1);
+
+ if (igt_insmod("snd_hda_intel", NULL) == -1)
+ return IGT_EXIT_FAILURE;
+
+ return IGT_EXIT_SUCCESS;
+}
+
+static void
+igt_execv(char **argv)
+{
+ igt_fork(child, 1) {
+ if (execv(argv[0], argv) < 0) {
+ igt_info("Failed to exec %s\n",
+ argv[0]);
+ exit(IGT_EXIT_FAILURE);
+ }
+ }
+ igt_waitchildren();
+}
+
+static void
+finish_load(char *dirname)
+{
+ char buf[PATH_MAX];
+ char *__argv[2] = { buf, NULL };
+
+ memset(buf, 0, PATH_MAX);
+ snprintf(buf, sizeof(buf), "%s/%s", dirname, tests[0]);
+
+ igt_execv(__argv);
+
+ memset(buf, 0, sizeof(buf));
+ snprintf(buf, sizeof(buf), "%s/%s", dirname, tests[1]);
+
+ igt_execv(__argv);
+}
+
+int main(int argc, char *argv[])
+{
+ int i, err;
+ char buf[64];
+ char *prg, *dir;
+
+ prg = strdup(argv[0]);
+ igt_subtest_init_parse_opts(&argc, argv, "", NULL,
+ NULL, NULL, NULL);
+
+
+ igt_subtest("basic-reload") {
+ if ((err = reload(NULL)))
+ igt_fail(err);
+ }
+
+ igt_subtest("basic-exec") {
+ dir = dirname(prg);
+ finish_load(dir);
+ }
+
+ igt_subtest("basic-reload-inject") {
+ for (i = 0; i < 4; i++) {
+ memset(buf, 0, sizeof(buf));
+ snprintf(buf, sizeof(buf), "inject_load_failure=%d", i);
+ reload(buf);
+ }
+ }
+
+ igt_subtest("basic-reload-final")
+ if ((err = reload(NULL)))
+ igt_fail(err);
+
+ free(prg);
+
+ igt_exit();
+}
--
2.7.4