Print cache flush overhead for runtime instrumentation tests

Change-Id: I9efd1bfa09238f47ac3bc29343c8db25ad63205b
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

1 files changed, 20 insertions, 5 deletions

diff --git a/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c b/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
index caa37a5..e2efcd9 100644
--- a/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
+++ b/tests/runtime_services/standard_service/pmf/api_tests/runtime_instr/test_pmf_rt_instr.c
@@ -41,11 +41,13 @@
 #include <tftf_lib.h>
 #include <timer.h>
 
-#define TOTAL_IDS		4
+#define TOTAL_IDS		6
 #define ENTER_PSCI		0
 #define EXIT_PSCI		1
 #define ENTER_HW_LOW_PWR	2
 #define EXIT_HW_LOW_PWR		3
+#define ENTER_CFLUSH		4
+#define EXIT_CFLUSH		5
 
 static spinlock_t cpu_count_lock;
 static volatile int cpu_count;
@@ -126,6 +128,11 @@ static test_result_t check_pwr_down_ts(void)
 		return TEST_RESULT_FAIL;
 	}
 
+	if (ts[ENTER_CFLUSH] > ts[EXIT_CFLUSH]) {
+		tftf_testcase_printf("PMF timestamps are not correctly ordered\n");
+		return TEST_RESULT_FAIL;
+	}
+
 	return TEST_RESULT_SUCCESS;
 }
 
@@ -155,13 +162,13 @@ static int dump_suspend_stats(void)
 {
 	u_register_t *ts;
 	u_register_t target_mpid;
-	uint64_t freq, cycles[2], period[2];
+	uint64_t freq, cycles[3], period[3];
 	int cpu_node, ret;
 	unsigned int pos;
 
 	freq = read_cntfrq_el0();
 
-	tftf_testcase_printf("CPU\tENTRY\tEXIT\n");
+	tftf_testcase_printf("CPU\tENTRY\tEXIT\tCFLUSH OVERHEAD\n");
 	for_each_cpu(cpu_node) {
 		target_mpid = tftf_get_mpidr_from_node(cpu_node);
 		pos = platform_get_core_pos(target_mpid);
@@ -182,9 +189,17 @@ static int dump_suspend_stats(void)
 			return TEST_RESULT_FAIL;
 		}
 
-		tftf_testcase_printf("%d\t%02llu us\t%02llu us\n", pos,
+		cycles[2] = ts[EXIT_CFLUSH] - ts[ENTER_CFLUSH];
+		ret = cycles_to_us(cycles[2], freq, &period[2]);
+		if (ret < 0) {
+			ERROR("cycles_to_us: out of range\n");
+			return TEST_RESULT_FAIL;
+		}
+
+		tftf_testcase_printf("%d\t%02llu us\t%02llu us\t%02llu us\n", pos,
 		    (unsigned long long)period[0],
-		    (unsigned long long)period[1]);
+		    (unsigned long long)period[1],
+		    (unsigned long long)period[2]);
 	}
 
 	return TEST_RESULT_SUCCESS;