| Samuel Holland | b856664 | 2017-08-12 04:07:39 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <platform.h> |
| 9 | #include <platform_def.h> |
| 10 | |
| 11 | static unsigned char plat_power_domain_tree_desc[PLAT_MAX_PWR_LVL + 1] = { |
| 12 | /* One root node for the SoC */ |
| 13 | 1, |
| 14 | /* One node for each cluster */ |
| 15 | PLATFORM_CLUSTER_COUNT, |
| 16 | /* One set of CPUs per cluster */ |
| 17 | PLATFORM_MAX_CPUS_PER_CLUSTER, |
| 18 | }; |
| 19 | |
| 20 | int plat_core_pos_by_mpidr(u_register_t mpidr) |
| 21 | { |
| 22 | unsigned int cluster = MPIDR_AFFLVL1_VAL(mpidr); |
| 23 | unsigned int core = MPIDR_AFFLVL0_VAL(mpidr); |
| 24 | |
| 25 | if (MPIDR_AFFLVL3_VAL(mpidr) > 0 || |
| 26 | MPIDR_AFFLVL2_VAL(mpidr) > 0 || |
| 27 | cluster >= PLATFORM_CLUSTER_COUNT || |
| 28 | core >= PLATFORM_MAX_CPUS_PER_CLUSTER) { |
| 29 | return -1; |
| 30 | } |
| 31 | |
| 32 | return cluster * PLATFORM_MAX_CPUS_PER_CLUSTER + core; |
| 33 | } |
| 34 | |
| 35 | const unsigned char *plat_get_power_domain_tree_desc(void) |
| 36 | { |
| 37 | return plat_power_domain_tree_desc; |
| 38 | } |