tests: add exit value constants for shell script tests

Signed-off-by: Thomas Wood <thomas.wood@intel.com>

tests/check_drm_clients

@@ -3,4 +3,4 @@
 SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 . $SOURCE_DIR/drm_lib.sh
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/debugfs_emon_crash

@@ -13,4 +13,4 @@ done
 
 # If we got here, we haven't crashed
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/drm_lib.sh

@@ -1,20 +1,26 @@
 #!/bin/sh
 
+IGT_EXIT_TIMEOUT=78
+IGT_EXIT_SKIP=77
+IGT_EXIT_SUCCESS=0
+IGT_EXIT_INVALID=79
+IGT_EXIT_FAILURE=99
+
 # hacked-up long option parsing
 for arg in $@ ; do
 	case $arg in
 		--list-subtests)
-			exit 79
+			exit $IGT_EXIT_INVALID
 			;;
 		--run-subtest)
-			exit 79
+			exit $IGT_EXIT_INVALID
 			;;
 		--debug)
 			IGT_LOG_LEVEL=debug
 			;;
 		--help-description)
 			echo $IGT_TEST_DESCRIPTION
-			exit 0
+			exit $IGT_EXIT_SUCCESS
 			;;
 		--help)
 			echo "Usage: `basename $0` [OPTIONS]"
@@ -23,18 +29,18 @@ for arg in $@ ; do
 			echo "  --debug"
 			echo "  --help-description"
 			echo "  --help"
-			exit 0
+			exit $IGT_EXIT_SUCCESS
 			;;
 	esac
 done
 
 die() {
 	echo "$@"
-	exit 1
+	exit $IGT_EXIT_FAILURE
 }
 
 do_or_die() {
-	$@ > /dev/null 2>&1 || (echo "FAIL: $@ ($?)" && exit -1)
+	$@ > /dev/null 2>&1 || (echo "FAIL: $@ ($?)" && exit $IGT_EXIT_FAILURE)
 }
 
 if [ -d /debug/dri ] ; then
@@ -63,7 +69,7 @@ if [ `cat $i915_dfs_path/clients | wc -l` -gt "2" ] ; then
 		die "ERROR: other drm clients running"
 fi
 
-whoami | grep -q root || ( echo ERROR: not running as root; exit 1 )
+whoami | grep -q root || ( echo ERROR: not running as root; exit $IGT_EXIT_FAILURE )
 
 i915_sfs_path=
 if [ -d /sys/class/drm ] ; then
@@ -76,7 +82,7 @@ fi
 
 function drmtest_skip_on_simulation()
 {
-	[ -n "$INTEL_SIMULATION" ] && exit 77
+	[ -n "$INTEL_SIMULATION" ] && exit $IGT_EXIT_SKIP
 }
 
 drmtest_skip_on_simulation

tests/drv_debugfs_reader

@@ -6,4 +6,4 @@ SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 # read everything we can
 cat $i915_dfs_path/* > /dev/null 2>&1
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/drv_missed_irq_hang

@@ -19,20 +19,20 @@ function blt_wait {
 function check_for_missed_irq {
 	if test `cat i915_ring_missed_irq` = 0x00000000; then
 		echo "missed interrupts undetected"
-		exit 1
+		exit $IGT_EXIT_FAILURE
 	fi
 }
 
 function check_for_hang {
 	if cat i915_error_state | grep -v "no error state collected" > /dev/null ; then
 		echo "gpu hang reported"
-		exit 2
+		exit $IGT_EXIT_FAILURE
 	fi
 }
 
 if [ ! -f i915_ring_missed_irq ] ; then
 	echo "kernel doesn't support interrupt masking"
-	exit 77
+	exit $IGT_EXIT_SKIP
 fi
 
 # clear error state first
@@ -43,7 +43,7 @@ echo 0xf > i915_ring_test_irq
 echo "Interrupts masked"
 if test `cat i915_ring_test_irq` != 0x0000000f; then
 	echo "Failed to set interrupt mask"
-	exit 3
+	exit $IGT_EXIT_FAILURE
 fi
 
 blt_wait
@@ -57,7 +57,7 @@ echo 0 > i915_ring_test_irq
 echo "Interrupts unmasked"
 if test `cat i915_ring_test_irq` != 0x00000000; then
 	echo "Failed to clear interrupt mask"
-	exit 3
+	exit $IGT_EXIT_FAILURE
 fi
 
 blt_wait
@@ -67,7 +67,7 @@ echo 0 > i915_ring_missed_irq
 echo "Cleared missed interrupts"
 if test `cat i915_ring_missed_irq` != 0x00000000; then
 	echo "Failed to clear missed interrupts"
-	exit 3
+	exit $IGT_EXIT_FAILURE
 fi
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/drv_module_reload_basic

@@ -33,7 +33,7 @@ rmmod drm &> /dev/null
 
 if lsmod | grep i915 &> /dev/null ; then
 	echo WARNING: i915.ko still loaded!
-	exit 1
+	exit $IGT_EXIT_FAILURE
 else
 	echo module successfully unloaded
 fi
@@ -48,13 +48,13 @@ if $SOURCE_DIR/gem_alive > /dev/null ; then
 	echo "module successfully loaded again"
 else
 	echo "failed to reload module successfully"
-	exit 2
+	exit $IGT_EXIT_FAILURE
 fi
 
 # then try to run something
 if ! $SOURCE_DIR/gem_linear_blits --run-subtest basic > /dev/null ; then
 	echo "failed to execute a simple batch after reload"
-	exit 3
+	exit $IGT_EXIT_FAILURE
 fi
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/kms_sysfs_edid_timing

@@ -19,7 +19,7 @@ RES=$(((TIME2 - TIME1) / 1000000))
 
 if [ $RES -gt 600 ]; then
 	echo "Talking to outputs took ${RES}ms, something is wrong"
-	exit 1
+	exit $IGT_EXIT_FAILURE
 fi
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/sysfs_l3_parity

@@ -5,7 +5,7 @@ SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 
 if ! find /sys/class/drm/card*/ | grep l3_parity > /dev/null ; then
 	echo "no l3_parity interface, skipping test"
-	exit 77
+	exit $IGT_EXIT_SKIP
 fi
 
 $SOURCE_DIR/../tools/intel_l3_parity -r 0 -b 0 -s 0 -e
@@ -15,7 +15,7 @@ $SOURCE_DIR/../tools/intel_l3_parity -r 0 -b 0 -s 0 -d
 disabled=`$SOURCE_DIR/../tools/intel_l3_parity -l | grep -c 'Row 0, Bank 0, Subbank 0 is disabled'`
 if [ "$disabled" != "1" ] ; then
 	echo "Fail"
-	exit 1
+	exit $IGT_EXIT_FAILURE
 fi
 
 $SOURCE_DIR/../tools/intel_l3_parity -r 0 -b 0 -s 0 -e
@@ -23,5 +23,5 @@ $SOURCE_DIR/../tools/intel_l3_parity -r 0 -b 0 -s 0 -e
 #Check that we can clear remaps
 if [ `$SOURCE_DIR/../tools/intel_l3_parity -l | wc -l` != 1 ] ; then
 	echo "Fail 2"
-	exit 1
+	exit $IGT_EXIT_FAILURE
 fi

tests/test_rte_check

@@ -3,4 +3,4 @@
 SOURCE_DIR="$( dirname "${BASH_SOURCE[0]}" )"
 . $SOURCE_DIR/drm_lib.sh
 
-exit 0
+exit $IGT_EXIT_SUCCESS

tests/tools_test

@@ -12,5 +12,5 @@ do_or_die "intel_reg_dumper"
 
 # TODO: Add more tests
 
-exit 0
+exit $IGT_EXIT_SUCCESS