arm-trusted-firmware/plat/arm/css/common/css_topology.c
dp-arm 82cb2c1ad9 Use SPDX license identifiers
To make software license auditing simpler, use SPDX[0] license
identifiers instead of duplicating the license text in every file.

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Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-03 09:39:28 +01:00

37 lines
1.2 KiB
C

/*
* Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <plat_arm.h>
#if ARM_PLAT_MT
#pragma weak plat_arm_get_cpu_pe_count
#endif
/******************************************************************************
* This function implements a part of the critical interface between the psci
* generic layer and the platform that allows the former to query the platform
* to convert an MPIDR to a unique linear index. An error code (-1) is
* returned in case the MPIDR is invalid.
*****************************************************************************/
int plat_core_pos_by_mpidr(u_register_t mpidr)
{
if (arm_check_mpidr(mpidr) == 0)
return plat_arm_calc_core_pos(mpidr);
return -1;
}
#if ARM_PLAT_MT
/******************************************************************************
* This function returns the PE count within the physical cpu corresponding to
* `mpidr`. Now one cpu only have one thread, so just return 1.
*****************************************************************************/
unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr)
{
return 1;
}
#endif /* ARM_PLAT_MT */