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refactor(psci): unify psci_is_last_on_cpu and psci_is_last_on_cpu_safe

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"psci_is_last_on_cpu" and "psci_is_last_on_cpu_safe" modules perform
mostly similar functionalities, verifying whether the current CPU
is the only active core and other cores have been turned off.

However, psci_is_last_on_cpu_safe function differs from the other with:
1. Safe API locks the power domain

This patch removes the section duplicating the functionality
and ensures that "psci_is_last_on_cpu api",is reused in
"psci_is_last_on_cpu_safe" procedure.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: Ie372519e423898d7afa5427cdd77a7f9d3369587
This commit is contained in:
Jayanth Dodderi Chidanand 2022-08-22 23:46:10 +01:00
parent ea7aee20c1
commit b41b082464
3 changed files with 20 additions and 45 deletions
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4
lib/psci/psci_main.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -158,7 +158,7 @@ int psci_system_suspend(uintptr_t entrypoint, u_register_t context_id)
entry_point_info_t ep;
/* Check if the current CPU is the last ON CPU in the system */
if (psci_is_last_on_cpu() == 0U)
if (!psci_is_last_on_cpu())
return PSCI_E_DENIED;
/* Validate the entry point and get the entry_point_info */