rtasm_cpu.c revision 3464ebd5 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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
29#include "util/u_debug.h"
30#include "rtasm_cpu.h"
31
32
33#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
34static boolean rtasm_sse_enabled(void)
35{
36   static boolean firsttime = 1;
37   static boolean enabled;
38
39   /* This gets called quite often at the moment:
40    */
41   if (firsttime) {
42      enabled =  !debug_get_bool_option("GALLIUM_NOSSE", FALSE);
43      firsttime = FALSE;
44   }
45   return enabled;
46}
47#endif
48
49int rtasm_cpu_has_sse(void)
50{
51   /* FIXME: actually detect this at run-time */
52#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
53   return rtasm_sse_enabled();
54#else
55   return 0;
56#endif
57}
58
59int rtasm_cpu_has_sse2(void)
60{
61   /* FIXME: actually detect this at run-time */
62#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
63   return rtasm_sse_enabled();
64#else
65   return 0;
66#endif
67}
68