Soby Mathew | 38dce70 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 1 | /* |
Summer Qin | d8d6cf2 | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 2 | * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. |
Soby Mathew | 38dce70 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 3 | * |
dp-arm | 82cb2c1 | 2017-05-03 09:38:09 +0100 | [diff] [blame^] | 4 | * SPDX-License-Identifier: BSD-3-Clause |
Soby Mathew | 38dce70 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #include <plat_arm.h> |
| 8 | |
Summer Qin | d8d6cf2 | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 9 | #if ARM_PLAT_MT |
| 10 | #pragma weak plat_arm_get_cpu_pe_count |
| 11 | #endif |
| 12 | |
Soby Mathew | 38dce70 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 13 | /****************************************************************************** |
| 14 | * This function implements a part of the critical interface between the psci |
| 15 | * generic layer and the platform that allows the former to query the platform |
| 16 | * to convert an MPIDR to a unique linear index. An error code (-1) is |
| 17 | * returned in case the MPIDR is invalid. |
| 18 | *****************************************************************************/ |
| 19 | int plat_core_pos_by_mpidr(u_register_t mpidr) |
| 20 | { |
| 21 | if (arm_check_mpidr(mpidr) == 0) |
| 22 | return plat_arm_calc_core_pos(mpidr); |
| 23 | |
| 24 | return -1; |
| 25 | } |
Summer Qin | d8d6cf2 | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 26 | |
| 27 | #if ARM_PLAT_MT |
| 28 | /****************************************************************************** |
| 29 | * This function returns the PE count within the physical cpu corresponding to |
| 30 | * `mpidr`. Now one cpu only have one thread, so just return 1. |
| 31 | *****************************************************************************/ |
| 32 | unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr) |
| 33 | { |
| 34 | return 1; |
| 35 | } |
| 36 | #endif /* ARM_PLAT_MT */ |