1 /**************************************************************************
2 *
3 * Copyright 2020 Red Hat
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "pipe/p_config.h"
29
30 static inline void *
util_memset32(void * s,uint32_t ui,size_t n)31 util_memset32(void *s, uint32_t ui, size_t n)
32 {
33 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64)
34 long d0, d1;
35 __asm__ volatile("rep\n\t"
36 "stosl"
37 : "=&c" (d0), "=&D" (d1)
38 : "a" (ui), "1" (s), "0" (n)
39 : "memory");
40 return s;
41 #else
42 uint32_t *xs = (uint32_t *)s;
43 while (n--)
44 *xs++ = ui;
45 return s;
46 #endif
47 }
48
49 static inline void *
util_memset64(void * s,uint64_t ui,size_t n)50 util_memset64(void *s, uint64_t ui, size_t n)
51 {
52 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64)
53 long d0, d1;
54 __asm__ volatile("rep\n\t"
55 "stosq"
56 : "=&c" (d0), "=&D" (d1)
57 : "a" (ui), "1" (s), "0" (n)
58 : "memory");
59 return s;
60 #else
61 uint64_t *xs = (uint64_t *)s;
62 while (n--)
63 *xs++ = ui;
64 return s;
65 #endif
66
67 }
68