src/gallium/auxiliary/util/u_cpu_detect.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Dennis Smit
   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 "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * on the rights to use, copy, modify, merge, publish, distribute, sub
  10  * license, and/or sell copies of the Software, and to permit persons to whom
  11  * the Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  20  * AUTHORS, COPYRIGHT HOLDERS, AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  21  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  22  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  23  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  ***************************************************************************/
  26
  27 /**
  28  * @file
  29  * CPU feature detection.
  30  *
  31  * @author Dennis Smit
  32  * @author Based on the work of Eric Anholt <anholt@FreeBSD.org>
  33  */
  34
  35 #ifndef _UTIL_CPU_DETECT_H
  36 #define _UTIL_CPU_DETECT_H
  37
  38 #include "pipe/p_compiler.h"
  39
  40 enum util_cpu_arch {
  41    UTIL_CPU_ARCH_UNKNOWN = 0,
  42    UTIL_CPU_ARCH_MIPS,
  43    UTIL_CPU_ARCH_ALPHA,
  44    UTIL_CPU_ARCH_SPARC,
  45    UTIL_CPU_ARCH_X86,
  46    UTIL_CPU_ARCH_POWERPC
  47 };
  48
  49 struct util_cpu_caps {
  50    enum util_cpu_arch arch;
  51    unsigned nr_cpus;
  52
  53    /* Feature flags */
  54    int x86_cpu_type;
  55    unsigned cacheline;
  56
  57    unsigned little_endian:1;
  58
  59    unsigned has_tsc:1;
  60    unsigned has_mmx:1;
  61    unsigned has_mmx2:1;
  62    unsigned has_sse:1;
  63    unsigned has_sse2:1;
  64    unsigned has_sse3:1;
  65    unsigned has_ssse3:1;
  66    unsigned has_sse4_1:1;
  67    unsigned has_3dnow:1;
  68    unsigned has_3dnow_ext:1;
  69    unsigned has_altivec:1;
  70 };
  71
  72 extern struct util_cpu_caps
  73 util_cpu_caps;
  74
  75 void util_cpu_detect(void);
  76
  77
  78 #endif /* _UTIL_CPU_DETECT_H */