1/* Optimized memset for AmpereComputing emag processor.
2   Copyright (C) 2018-2021 Free Software Foundation, Inc.
3
4   This file is part of the GNU C Library.
5
6   The GNU C Library is free software; you can redistribute it and/or
7   modify it under the terms of the GNU Lesser General Public
8   License as published by the Free Software Foundation; either
9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library.  If not, see
18   <https://www.gnu.org/licenses/>.  */
19
20#include <sysdep.h>
21
22#if IS_IN (libc)
23# define MEMSET __memset_emag
24
25/*
26 * Using DC ZVA to zero memory does not produce better performance if
27 * memory size is not very large, especially when there are multiple
28 * processes/threads contending memory/cache. Here we set threshold to
29 * zero to disable using DC ZVA, which is good for multi-process/thread
30 * workloads.
31 */
32
33# define DC_ZVA_THRESHOLD 0
34
35# include "./memset_base64.S"
36#endif
37