44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
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* Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <plat/arm/common/plat_arm.h>
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#include <plat/common/platform.h>
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/* The Corstone700 power domain tree descriptor */
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static unsigned char corstone700_power_domain_tree_desc
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[PLAT_ARM_CLUSTER_COUNT + 2];
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/*******************************************************************************
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* This function dynamically constructs the topology according to
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* CLUSTER_COUNT and returns it.
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******************************************************************************/
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const unsigned char *plat_get_power_domain_tree_desc(void)
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{
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int i;
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/*
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* The highest level is the system level. The next level is constituted
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* by clusters and then cores in clusters.
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*/
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corstone700_power_domain_tree_desc[0] = 1;
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corstone700_power_domain_tree_desc[1] = PLAT_ARM_CLUSTER_COUNT;
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for (i = 0; i < PLAT_ARM_CLUSTER_COUNT; i++)
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corstone700_power_domain_tree_desc[i + 2] = PLATFORM_CORE_COUNT;
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return corstone700_power_domain_tree_desc;
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}
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/******************************************************************************
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* This function implements a part of the critical interface between the PSCI
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* generic layer and the platform that allows the former to query the platform
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* to convert an MPIDR to a unique linear index. An error code (-1) is
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* returned in case the MPIDR is invalid.
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*****************************************************************************/
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int plat_core_pos_by_mpidr(u_register_t mpidr)
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{
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return plat_arm_calc_core_pos(mpidr);
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}
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