45 lines
1.4 KiB
C
45 lines
1.4 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 <plat_arm.h>
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#include <sgi_plat_config.h>
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/* Topology */
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/*
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* The power domain tree descriptor. The cluster power domains are
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* arranged so that when the PSCI generic code creates the power domain tree,
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* the indices of the CPU power domain nodes it allocates match the linear
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* indices returned by plat_core_pos_by_mpidr().
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*/
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const unsigned char sgi_pd_tree_desc[] = {
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PLAT_ARM_CLUSTER_COUNT,
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CSS_SGI_MAX_CORES_PER_CLUSTER,
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CSS_SGI_MAX_CORES_PER_CLUSTER
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};
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/* Topology configuration for sgi platform */
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const css_topology_t sgi_topology = {
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.power_tree = sgi_pd_tree_desc,
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.plat_cluster_core_count = CSS_SGI_MAX_CORES_PER_CLUSTER
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};
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/*******************************************************************************
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* This function returns the topology tree information.
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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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return sgi_topology.power_tree;
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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_arm_get_cluster_core_count(u_register_t mpidr)
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{
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return sgi_topology.plat_cluster_core_count;
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}
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