test_firmware: test the 3 firmware kernel configs using debugfs
This enables support to test the three different kernel
configurations by using the new firmware debugfs facility.
We can now test all known kernel configs with one kernel build
and one run.
If you're on an old kernel and either don't have /proc/config.gz
(CONFIG_IKCONFIG_PROC) or haven't enabled CONFIG_FW_LOADER_DEBUG
we cannot run these dynamic tests, so just run both scripts just
as we used to before.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
diff --git a/tools/testing/selftests/firmware/Makefile b/tools/testing/selftests/firmware/Makefile
index 1894d62..826f38d 100644
--- a/tools/testing/selftests/firmware/Makefile
+++ b/tools/testing/selftests/firmware/Makefile
@@ -3,7 +3,7 @@
# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
all:
-TEST_PROGS := fw_filesystem.sh fw_fallback.sh
+TEST_PROGS := fw_run_tests.sh
include ../lib.mk
diff --git a/tools/testing/selftests/firmware/config b/tools/testing/selftests/firmware/config
index bf634dd..eef53c9 100644
--- a/tools/testing/selftests/firmware/config
+++ b/tools/testing/selftests/firmware/config
@@ -1,5 +1,6 @@
CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_FW_LOADER_DEBUG=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
index 0702dbf..ada60c0 100755
--- a/tools/testing/selftests/firmware/fw_lib.sh
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -47,6 +47,35 @@
{
HAS_FW_LOADER_USER_HELPER=$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)
HAS_FW_LOADER_USER_HELPER_FALLBACK=$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)
+ DEBUGFS_FW_IGNORE_SYSFS_FALLBACK="N"
+ DEBUGFS_FW_FORCE_SYSFS_FALLBACK="N"
+
+ if [ -z $DEBUGFS_DIR ]; then
+ DEBUGFS_DIR="/sys/kernel/debug/"
+ fi
+
+ FW_DEBUGFS="/sys/kernel/debug/firmware/"
+ FW_FORCE_SYSFS_FALLBACK="$FW_DEBUGFS/force_sysfs_fallback"
+ FW_IGNORE_SYSFS_FALLBACK="$FW_DEBUGFS/ignore_sysfs_fallback"
+ HAS_DEBUGFS="no"
+
+ if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+ DEBUGFS_FW_FORCE_SYSFS_FALLBACK=$(cat $FW_FORCE_SYSFS_FALLBACK)
+ fi
+
+ if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+ DEBUGFS_FW_IGNORE_SYSFS_FALLBACK=$(cat $FW_IGNORE_SYSFS_FALLBACK)
+ fi
+
+ if [ "$DEBUGFS_FW_IGNORE_SYSFS_FALLBACK" = "Y" ]; then
+ HAS_FW_LOADER_USER_HELPER_FALLBACK="no"
+ HAS_FW_LOADER_USER_HELPER="no"
+ fi
+
+ if [ "$DEBUGFS_FW_FORCE_SYSFS_FALLBACK" = "Y" ]; then
+ HAS_FW_LOADER_USER_HELPER="yes"
+ HAS_FW_LOADER_USER_HELPER_FALLBACK="yes"
+ fi
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
@@ -76,6 +105,30 @@
fi
}
+debugfs_set_force_sysfs_fallback()
+{
+ if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+ echo -n $1 > $FW_FORCE_SYSFS_FALLBACK
+ DEBUGFS_FW_FORCE_SYSFS_FALLBACK=$(cat $FW_FORCE_SYSFS_FALLBACK)
+ check_setup
+ fi
+}
+
+debugfs_set_ignore_sysfs_fallback()
+{
+ if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+ echo -n $1 > $FW_IGNORE_SYSFS_FALLBACK
+ DEBUGFS_FW_IGNORE_SYSFS_FALLBACK=$(cat $FW_IGNORE_SYSFS_FALLBACK)
+ check_setup
+ fi
+}
+
+debugfs_restore_defaults()
+{
+ debugfs_set_force_sysfs_fallback N
+ debugfs_set_ignore_sysfs_fallback N
+}
+
test_finish()
{
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
@@ -93,6 +146,7 @@
if [ -d $FWPATH ]; then
rm -rf "$FWPATH"
fi
+ debugfs_restore_defaults
}
kconfig_has()
diff --git a/tools/testing/selftests/firmware/fw_run_tests.sh b/tools/testing/selftests/firmware/fw_run_tests.sh
new file mode 100755
index 0000000..845facf
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_run_tests.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This runs all known tests across all known possible configurations we could
+# emulate in one run.
+
+set -e
+
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
+
+run_tests()
+{
+ $TEST_DIR/fw_filesystem.sh
+ $TEST_DIR/fw_fallback.sh
+}
+
+run_test_config_0001()
+{
+ echo "-----------------------------------------------------"
+ echo "Running kernel configuration test 1 -- rare"
+ echo "Emulates:"
+ echo "CONFIG_FW_LOADER=y"
+ echo "CONFIG_FW_LOADER_USER_HELPER=n"
+ echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+ debugfs_set_force_sysfs_fallback N
+ debugfs_set_ignore_sysfs_fallback Y
+ run_tests
+}
+
+run_test_config_0002()
+{
+ echo "-----------------------------------------------------"
+ echo "Running kernel configuration test 2 -- distro"
+ echo "Emulates:"
+ echo "CONFIG_FW_LOADER=y"
+ echo "CONFIG_FW_LOADER_USER_HELPER=y"
+ echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+ debugfs_set_force_sysfs_fallback N
+ debugfs_set_ignore_sysfs_fallback N
+ run_tests
+}
+
+run_test_config_0003()
+{
+ echo "-----------------------------------------------------"
+ echo "Running kernel configuration test 3 -- android"
+ echo "Emulates:"
+ echo "CONFIG_FW_LOADER=y"
+ echo "CONFIG_FW_LOADER_USER_HELPER=y"
+ echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y"
+ debugfs_set_force_sysfs_fallback Y
+ debugfs_set_ignore_sysfs_fallback N
+ run_tests
+}
+
+check_mods
+check_setup
+
+if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+ run_test_config_0001
+ run_test_config_0002
+ run_test_config_0003
+else
+ echo "Running basic kernel configuration, working with your config"
+ run_tests
+fi
