firmware/target/hosted/cpuinfo-linux.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
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   8  * $Id$
   9  *
  10  * Copyright (C) 2011 Thomas Martitz
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22
  23 #ifndef __CPUINFO_LINUX_H__
  24 #define __CPUINFO_LINUX_H__
  25
  26 #include <stdbool.h>
  27
  28 struct cpuusage {
  29     long usage; /* in hundredth percent */
  30     long utime; /* in clock ticks */
  31     long stime; /* in clock ticks */
  32     long rtime; /* in clock ticks */
  33     long hz;    /* how clock ticks per second */
  34 };
  35
  36 struct time_state {
  37     long frequency;
  38     long time;
  39 };
  40
  41 int cpuusage_linux(struct cpuusage* u);
  42 int frequency_linux(int cpu, bool scaling);
  43 int cpustatetimes_linux(int cpu, struct time_state* data, int max_elements);
  44 int cpucount_linux(void);
  45
  46 #endif /* __CPUINFO_LINUX_H__ */