| Manish Pandey | 52990ae | 2018-11-28 11:20:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <plat/arm/common/plat_arm.h> |
| 8 | #include <plat/common/platform.h> |
| 9 | |
| 10 | /* The Corstone700 power domain tree descriptor */ |
| 11 | static unsigned char corstone700_power_domain_tree_desc |
| 12 | [PLAT_ARM_CLUSTER_COUNT + 2]; |
| 13 | /******************************************************************************* |
| 14 | * This function dynamically constructs the topology according to |
| 15 | * CLUSTER_COUNT and returns it. |
| 16 | ******************************************************************************/ |
| 17 | const unsigned char *plat_get_power_domain_tree_desc(void) |
| 18 | { |
| 19 | int i; |
| 20 | |
| 21 | /* |
| 22 | * The highest level is the system level. The next level is constituted |
| 23 | * by clusters and then cores in clusters. |
| 24 | */ |
| 25 | corstone700_power_domain_tree_desc[0] = 1; |
| 26 | corstone700_power_domain_tree_desc[1] = PLAT_ARM_CLUSTER_COUNT; |
| 27 | |
| 28 | for (i = 0; i < PLAT_ARM_CLUSTER_COUNT; i++) |
| 29 | corstone700_power_domain_tree_desc[i + 2] = PLATFORM_CORE_COUNT; |
| 30 | |
| 31 | return corstone700_power_domain_tree_desc; |
| 32 | } |
| 33 | |
| 34 | /****************************************************************************** |
| 35 | * This function implements a part of the critical interface between the PSCI |
| 36 | * generic layer and the platform that allows the former to query the platform |
| 37 | * to convert an MPIDR to a unique linear index. An error code (-1) is |
| 38 | * returned in case the MPIDR is invalid. |
| 39 | *****************************************************************************/ |
| 40 | int plat_core_pos_by_mpidr(u_register_t mpidr) |
| 41 | { |
| 42 | return plat_arm_calc_core_pos(mpidr); |
| 43 | } |