tests: Test suspend/resume on idle pipelines
authorKieran Bingham <kieran.bingham@ideasonboard.com>
Thu, 1 Dec 2016 21:31:48 +0000 (21:31 +0000)
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Mon, 13 Feb 2017 18:43:48 +0000 (20:43 +0200)
Provide a test to verify the hardware is functional both before and
after entering a suspend / resume cycle. Make use of the
/sys/power/pm_test functionality provided by CONFIG_PM_DEBUG to perform
the testing

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
tests/vsp-unit-test-0019.sh [new file with mode: 0755]

diff --git a/tests/vsp-unit-test-0019.sh b/tests/vsp-unit-test-0019.sh
new file mode 100755 (executable)
index 0000000..7e8b255
--- /dev/null
@@ -0,0 +1,102 @@
+#!/bin/sh
+
+#
+# Test power-management suspend/resume whilst pipelines are idle
+#
+# Utilise the basic RPF->WPF packing test case as a measure that the hardware
+# is operable while we perform test suspend and resume, and verify that it is
+# still operable after resume.
+#
+# Format iteration loops are maintained, even with only one format so that this
+# test can be easily extended to try further formats if needed in the future.
+#
+
+source vsp-lib.sh
+
+features="rpf.0 wpf.0"
+
+# Two formats are specified so that the test is run twice.
+# This ensures that stop -> start works both before and after suspend
+formats="RGB24 RGB24"
+
+# These can be extracted from /sys/power/pm_test
+suspend_modes="freezer devices platform processors core"
+
+test_wpf_packing() {
+       local format=$1
+
+       pipe_configure rpf-wpf 0 0
+       format_configure rpf-wpf 0 0 ARGB32 1024x768 $format
+
+       vsp_runner rpf.0 &
+       vsp_runner wpf.0
+
+       local result=$(compare_frames)
+       [ x$result == xpass ] && return 0 || return 1
+}
+
+test_hw_pipe() {
+       local format
+       local result
+
+       for format in $formats ; do
+               test_wpf_packing $format
+               result=$?
+
+               # return early on failure
+               [ $result != 0 ] && return 1
+       done
+
+       return 0
+}
+
+test_suspend_resume() {
+       local result=0
+
+       test_start "non-active pipeline suspend/resume in suspend:$mode"
+
+       # Verify the test is available
+       grep -q $mode /sys/power/pm_test
+       if [ $? != 0 ]; then
+               test_complete skip
+               return
+       fi
+
+       # Test the hardware each side of suspend resume
+       test_hw_pipe
+       result=$((result+$?))
+
+       # Set the test mode
+       echo $mode > /sys/power/pm_test
+
+       # Commence suspend
+       # The pm_test framework will automatically resume after 5 seconds
+       echo mem > /sys/power/state
+
+       # Verify the hardware is still operational
+       test_hw_pipe
+       result=$((result+$?))
+
+       if [ $result != 0 ]; then
+               test_complete "failed"
+       else
+               test_complete "passed"
+       fi
+}
+
+test_main() {
+       local mode
+
+       # Check for pm-suspend test option
+       if [ ! -e /sys/power/pm_test ] ; then
+               echo "$0: suspend/resume testing requires CONFIG_PM_DEBUG"
+               return
+       fi
+
+       for mode in $suspend_modes ; do
+               test_suspend_resume $mode
+       done
+}
+
+test_init $0 "$features"
+test_run