Add PSCI STAT helper APIs

This patch adds PSCI_STAT_COUNT and PSCI_STAT_RESIDENCY helper
functions to the TFTF framework.

Change-Id: I624b25c8ccbb540f69392900890940fc16197001

1 files changed, 28 insertions, 1 deletions

diff --git a/lib/psci/psci.c b/lib/psci/psci.c
index d761747..682ad5c 100644
--- a/lib/psci/psci.c
+++ b/lib/psci/psci.c
@@ -97,7 +97,35 @@ int32_t tftf_psci_cpu_off(void)
 	smc64_ret_values ret_vals;
 
 	ret_vals = tftf_smc64(&args);
+	return ret_vals.ret0;
+}
+
 
+u_register_t tftf_psci_stat_residency(u_register_t target_cpu,
+		uint32_t power_state)
+{
+	smc64_args args = {
+		SMC_PSCI_STAT_RESIDENCY64,
+		target_cpu,
+		power_state,
+	};
+	smc64_ret_values ret_vals;
+
+	ret_vals = tftf_smc64(&args);
+	return ret_vals.ret0;
+}
+
+u_register_t tftf_psci_stat_count(u_register_t target_cpu,
+		uint32_t power_state)
+{
+	smc64_args args = {
+		SMC_PSCI_STAT_COUNT64,
+		target_cpu,
+		power_state,
+	};
+	smc64_ret_values ret_vals;
+
+	ret_vals = tftf_smc64(&args);
 	return ret_vals.ret0;
 }
 
@@ -307,4 +335,3 @@ unsigned int tftf_get_psci_version(void)
 
 	return ret.ret0;
 }
-