feat(psci): add psci_do_manage_extensions API
Adding a new API under PSCI library,for managing all the architectural
features, required during power off or suspend cases.
Change-Id: I1659560daa43b9344dd0cc0d9b311129b4e9a9c7
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
diff --git a/include/lib/psci/psci_lib.h b/include/lib/psci/psci_lib.h
index 4b244ec..c50f8cb 100644
--- a/include/lib/psci/psci_lib.h
+++ b/include/lib/psci/psci_lib.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2022, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2023, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -94,6 +94,7 @@
bool psci_is_last_on_cpu_safe(void);
bool psci_are_all_cpus_on_safe(void);
void psci_pwrdown_cpu(unsigned int power_level);
+void psci_do_manage_extensions(void);
#endif /* __ASSEMBLER__ */
diff --git a/lib/psci/psci_common.c b/lib/psci/psci_common.c
index f9de432..1333b1a 100644
--- a/lib/psci/psci_common.c
+++ b/lib/psci/psci_common.c
@@ -1164,6 +1164,8 @@
******************************************************************************/
void psci_pwrdown_cpu(unsigned int power_level)
{
+ psci_do_manage_extensions();
+
#if HW_ASSISTED_COHERENCY
/*
* With hardware-assisted coherency, the CPU drivers only initiate the
@@ -1283,3 +1285,13 @@
return true;
}
+
+/*******************************************************************************
+ * This function performs architectural feature specific management.
+ * It ensures the architectural features are disabled during cpu
+ * power off/suspend operations.
+ ******************************************************************************/
+void psci_do_manage_extensions(void)
+{
+
+}