| Soby Mathew | fec4eb7 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 1 | /* |
| Summer Qin | 93c812f | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 2 | * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. |
| Soby Mathew | fec4eb7 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are met: |
| 6 | * |
| 7 | * Redistributions of source code must retain the above copyright notice, this |
| 8 | * list of conditions and the following disclaimer. |
| 9 | * |
| 10 | * Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * |
| 14 | * Neither the name of ARM nor the names of its contributors may be used |
| 15 | * to endorse or promote products derived from this software without specific |
| 16 | * prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| 22 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | * POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #include <plat_arm.h> |
| 32 | |
| Summer Qin | 93c812f | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 33 | #if ARM_PLAT_MT |
| 34 | #pragma weak plat_arm_get_cpu_pe_count |
| 35 | #endif |
| 36 | |
| Soby Mathew | fec4eb7 | 2015-07-01 16:16:20 +0100 | [diff] [blame] | 37 | /****************************************************************************** |
| 38 | * This function implements a part of the critical interface between the psci |
| 39 | * generic layer and the platform that allows the former to query the platform |
| 40 | * to convert an MPIDR to a unique linear index. An error code (-1) is |
| 41 | * returned in case the MPIDR is invalid. |
| 42 | *****************************************************************************/ |
| 43 | int plat_core_pos_by_mpidr(u_register_t mpidr) |
| 44 | { |
| 45 | if (arm_check_mpidr(mpidr) == 0) |
| 46 | return plat_arm_calc_core_pos(mpidr); |
| 47 | |
| 48 | return -1; |
| 49 | } |
| Summer Qin | 93c812f | 2017-02-28 16:46:17 +0000 | [diff] [blame] | 50 | |
| 51 | #if ARM_PLAT_MT |
| 52 | /****************************************************************************** |
| 53 | * This function returns the PE count within the physical cpu corresponding to |
| 54 | * `mpidr`. Now one cpu only have one thread, so just return 1. |
| 55 | *****************************************************************************/ |
| 56 | unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr) |
| 57 | { |
| 58 | return 1; |
| 59 | } |
| 60 | #endif /* ARM_PLAT_MT */ |