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48 lines
1.0 KiB
48 lines
1.0 KiB
4 months ago
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/*
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* Copyright (c) 2018, Renesas Electronics Corporation. 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 <platform_def.h>
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#include <common/debug.h>
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#include <lib/psci/psci.h>
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static const unsigned char rcar_power_domain_tree_desc[] = {
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1,
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PLATFORM_CLUSTER_COUNT,
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PLATFORM_CLUSTER0_CORE_COUNT,
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PLATFORM_CLUSTER1_CORE_COUNT
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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 rcar_power_domain_tree_desc;
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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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unsigned int cluster_id, cpu_id;
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mpidr &= MPIDR_AFFINITY_MASK;
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if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
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return -1;
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cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
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cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
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if (cluster_id >= PLATFORM_CLUSTER_COUNT)
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return -1;
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if (cluster_id == 0 && cpu_id >= PLATFORM_CLUSTER0_CORE_COUNT)
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return -1;
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if (cluster_id == 1 && cpu_id >= PLATFORM_CLUSTER1_CORE_COUNT)
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return -1;
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return (cpu_id + cluster_id * PLATFORM_CLUSTER0_CORE_COUNT);
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}
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