1 /* 2 * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <plat_arm.h> 8 9 #if ARM_PLAT_MT 10 #pragma weak plat_arm_get_cpu_pe_count 11 #endif 12 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 } 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 */ 37
