src/gallium/auxiliary/rtasm/rtasm_cpu.c

   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 #include "pipe/p_config.h"
  29 #include "rtasm_cpu.h"
  30
  31 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  32
  33 #include "util/u_debug.h"
  34 #include "util/u_cpu_detect.h"
  35
  36 DEBUG_GET_ONCE_BOOL_OPTION(nosse, "GALLIUM_NOSSE", FALSE);
  37
  38 static struct util_cpu_caps *get_cpu_caps(void)
  39 {
  40    util_cpu_detect();
  41    return &util_cpu_caps;
  42 }
  43
  44 int rtasm_cpu_has_sse(void)
  45 {
  46    return !debug_get_option_nosse() && get_cpu_caps()->has_sse;
  47 }
  48
  49 int rtasm_cpu_has_sse2(void)
  50 {
  51    return !debug_get_option_nosse() && get_cpu_caps()->has_sse2;
  52 }
  53
  54
  55 #else
  56
  57 int rtasm_cpu_has_sse(void)
  58 {
  59    return 0;
  60 }
  61
  62 int rtasm_cpu_has_sse2(void)
  63 {
  64    return 0;
  65 }
  66
  67 #endif