| 1 | /* Optimized memset for AmpereComputing emag processor. |
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| 2 | Copyright (C) 2018-2022 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of the GNU C Library. |
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| 5 | |
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| 6 | The GNU C Library is free software; you can redistribute it and/or |
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| 7 | modify it under the terms of the GNU Lesser General Public |
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| 8 | License as published by the Free Software Foundation; either |
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| 9 | version 2.1 of the License, or (at your option) any later version. |
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| 10 | |
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| 11 | The GNU C Library is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | Lesser General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU Lesser General Public |
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| 17 | License along with the GNU C Library. If not, see |
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| 18 | <https://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #include <sysdep.h> |
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| 21 | |
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| 22 | #if IS_IN (libc) |
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| 23 | # define MEMSET __memset_emag |
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| 24 | |
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| 25 | /* |
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| 26 | * Using DC ZVA to zero memory does not produce better performance if |
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| 27 | * memory size is not very large, especially when there are multiple |
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| 28 | * processes/threads contending memory/cache. Here we set threshold to |
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| 29 | * zero to disable using DC ZVA, which is good for multi-process/thread |
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| 30 | * workloads. |
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| 31 | */ |
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| 32 | |
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| 33 | # define DC_ZVA_THRESHOLD 0 |
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| 34 | |
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| 35 | # include "./memset_base64.S" |
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| 36 | #endif |
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| 37 | |
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