59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
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/*
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* Copyright (c) 2018, 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 <arch.h>
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#include <lib/cassert.h>
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#include "plat_ls.h"
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#include "platform_def.h"
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unsigned char ls1043_power_domain_tree_desc[LS1043_CLUSTER_COUNT + 1];
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CASSERT(LS1043_CLUSTER_COUNT && LS1043_CLUSTER_COUNT <= 256,
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assert_invalid_ls1043_cluster_count);
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/*******************************************************************************
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* This function dynamically constructs the topology according to
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* LS1043_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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ls1043_power_domain_tree_desc[0] = LS1043_CLUSTER_COUNT;
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for (i = 0; i < LS1043_CLUSTER_COUNT; i++)
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ls1043_power_domain_tree_desc[i + 1] =
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LS1043_MAX_CPUS_PER_CLUSTER;
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return ls1043_power_domain_tree_desc;
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}
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/*******************************************************************************
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* This function returns the core count within the cluster corresponding to
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* `mpidr`.
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******************************************************************************/
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unsigned int plat_ls_get_cluster_core_count(u_register_t mpidr)
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{
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return LS1043_MAX_CPUS_PER_CLUSTER;
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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 returned
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* 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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if (ls_check_mpidr(mpidr) == -1)
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return -1;
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return plat_ls_calc_core_pos(mpidr);
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}
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