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      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
     68