Implement fallback setting of CPU_FAST & CPU_SLOW from defconfig files

-These are the 3 files where all the tests get the CPU_FAST & CPU_SLOW
settings from runtime builtin functions. In case of failure now
the settings are filled from defconfig variables.

-Keeping error messages which notify the error in run-time CPUs
identifications.

-LAVA link job with these changes:
http://ssg-sw.cambridge.arm.com/lava/scheduler/job/17627/log_file

Change-Id: I80657fab214d50f9577c2a38ffc5d8e36a010f55
Author: Saul Romero <saul.romero@arm.com>

3 files changed, 33 insertions, 9 deletions

diff --git a/components/basics.sh/basics.sh b/components/basics.sh/basics.sh
index e2a4141..efadeb7 100755
--- a/components/basics.sh/basics.sh
+++ b/components/basics.sh/basics.sh
@@ -53,9 +53,21 @@ for cpu in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 21 22 23 24 2
 		commafast=,
 	fi
 done
+if [ -z "$CPU_SLOW" ]; then
+        CPU_SLOW=$(echo ${CONFIG_BIGLITTLE_LITTLE_CPUS// /,})
+	echo "ERROR: little CPUs run-time identification FAILED"
+	echo "Falling back to defconfig CONFIG_BIGLITTLE_LITTLE_CPUS value..."
+fi
+
+if [ -z "$CPU_FAST" ]; then
+        CPU_FAST=$(echo ${CONFIG_BIGLITTLE_BIG_CPUS// /,})
+	echo "ERROR: big CPUs run-time identification FAILED"
+	echo "Falling back to defconfig CONFIG_BIGLITTLE_BIG_CPUS value..."
+fi
+
 echo "Fast CPU $CPU_FAST Slow CPU $CPU_SLOW"
 
-if [  ! -e /sys/kernel/hmp/up_threshold ]  ||  [ ! -e /sys/kernel/hmp/down_threshold  ]; then 
+if [  ! -e /sys/kernel/hmp/up_threshold ]  ||  [ ! -e /sys/kernel/hmp/down_threshold  ]; then
 	echo "up-threshold and down-threshold values not exported. Precondition failure"
 	#non-zero exit signals test runner to declare this test as a failure
 	exit 1
diff --git a/components/functestlib.sh/functestlib.sh b/components/functestlib.sh/functestlib.sh
index 9164d12..c7222ed 100755
--- a/components/functestlib.sh/functestlib.sh
+++ b/components/functestlib.sh/functestlib.sh
@@ -783,16 +783,14 @@ populatebiglittlecpulists()
   fi
 
   if [ "x$__BIGCPUS" == "x" ]; then
-    echo
-    echo "ERROR: big CPUs identification FAILED"
-    echo "Current SchedTest suite supports only: A7+A15 or A53+A57 big.LITTLE systems"
-    echo
+    __BIGCPUS="$CONFIG_BIGLITTLE_BIG_CPUS"
+    echo "ERROR: big CPUs run-time identification FAILED"
+    echo "Falling back to defconfig CONFIG_BIGLITTLE_BIG_CPUS value..."
   fi
   if [ "x$__LITTLECPUS" == "x" ]; then
-    echo
-    echo "ERROR: LITTLE CPUs identification FAILED"
-    echo "Current SchedTest suite supports only: A7+A15 or A53+A57 big.LITTLE systems"
-    echo
+    __LITTLECPUS="$CONFIG_BIGLITTLE_LITTLE_CPUS"
+   echo "ERROR: little CPUs run-time identification FAILED"
+   echo "Falling back to defconfig CONFIG_BIGLITTLE_LITTLE_CPUS value..."
   fi
 }
 
diff --git a/suites/stability/non_functional_suite/common/non_functional_script.sh b/suites/stability/non_functional_suite/common/non_functional_script.sh
index fbf17aa..3a9ceaf 100755
--- a/suites/stability/non_functional_suite/common/non_functional_script.sh
+++ b/suites/stability/non_functional_suite/common/non_functional_script.sh
@@ -67,6 +67,20 @@ while [ $end == 0 ] ; do
         fi
 	let cpu=$cpu+1
 done
+if [ -z "$CPU_SLOW" ]; then
+        CPU_SLOW=$CONFIG_BIGLITTLE_LITTLE_CPUS
+	CPU_ALL=$CPU_SLOW
+	echo "ERROR: CPU slow run-time identification FAILED"
+	echo "Falling back to defconfig CONFIG_BIGLITTLE_LITTLE_CPUS value..."
+fi
+
+if [ -z "$CPU_FAST" ]; then
+        CPU_FAST=$CONFIG_BIGLITTLE_BIG_CPUS
+	CPU_ALL="$CPU_ALL $CPU_FAST"
+	echo "ERROR: CPU fast run-time identification FAILED"
+	echo "Falling back to defconfig CONFIG_BIGLITTLE_BIG_CPUS value..."
+fi
+
 echo "Fast CPU $CPU_FAST Slow CPU $CPU_SLOW"
 
 #General rule; function with return values, put