| 1 | /* |
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| 2 | * nostdio.h - User side non-standard syscalls API. |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016,2017) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef _NOSTD_H_ |
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| 25 | #define _NOSTD_H_ |
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| 26 | |
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| 27 | /*************************************************************************************** |
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| 28 | * This function uses the relevant syscall to return the hardware platform parameters. |
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| 29 | *************************************************************************************** |
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| 30 | * @ x_size : [out] number of clusters in a row. |
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| 31 | * @ y_size : [out] number of clusters in a column. |
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| 32 | * @ ncores : [out] number of cores per cluster. |
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| 33 | * @ return 0 if success / return -1 if illegal pointers arguments. |
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| 34 | **************************************************************************************/ |
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| 35 | int get_config( unsigned int * x_size, |
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| 36 | unsigned int * y_size, |
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| 37 | unsigned int * ncores ); |
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| 38 | |
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| 39 | /*************************************************************************************** |
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| 40 | * This function uses the relevant syscall to returns the cluster an local index |
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| 41 | * for the calling core. |
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| 42 | *************************************************************************************** |
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| 43 | * @ cxy : [out] cluster identifier. |
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| 44 | * @ lid : [out] core local index in cluster. |
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| 45 | * @ return 0 if success / return -1 if illegal pointers arguments. |
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| 46 | **************************************************************************************/ |
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| 47 | int get_core( unsigned int * cxy, |
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| 48 | unsigned int * lid ); |
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| 49 | |
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| 50 | /*************************************************************************************** |
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| 51 | * This function uses the relevant syscall to returns the calling core cycles counter, |
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| 52 | * taking into account a possible overflow on 32 bits architectures. |
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| 53 | *************************************************************************************** |
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| 54 | * @ cycle : [out] current cycle value. |
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| 55 | * @ return 0 if success / return -1 if illegal pointer argument. |
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| 56 | **************************************************************************************/ |
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| 57 | int get_cycle( unsigned long long * cycle ); |
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| 58 | |
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| 59 | /*************************************************************************************** |
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| 60 | * This function uses the relevant syscall to display the state of the scheduler |
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| 61 | * identified by the <cxy> and <lid> arguments. |
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| 62 | *************************************************************************************** |
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| 63 | * @ cxy : [in] target cluster identifier. |
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| 64 | * @ lid : [in] target core local index. |
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| 65 | * @ return 0 if success / return -1 if illegal arguments. |
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| 66 | **************************************************************************************/ |
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| 67 | int get_sched( unsigned int cxy, |
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| 68 | unsigned int lid ); |
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| 69 | |
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| 70 | /*************************************************************************************** |
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| 71 | * This function uses the relevant syscall to display on the kernel terminal a debug |
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| 72 | * message in case of panic (such as a printf failure). |
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| 73 | * This message contains the thread / process / core identifiers, and the cause, |
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| 74 | * as defined by the <string> argument. |
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| 75 | *************************************************************************************** |
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| 76 | * @ string : [in] cause of user panic. |
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| 77 | **************************************************************************************/ |
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| 78 | void panic( char * string ); |
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| 79 | |
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| 80 | |
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| 81 | |
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| 82 | #endif // _NOSTD_H_ |
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| 83 | |
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