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[/] [openrisc/] [trunk/] [or1ksim/] [pm/] [pm.c] - Diff between revs 19 and 224

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/* pm.c -- Simulation of OpenRISC 1000 power management
/* pm.c -- Simulation of OpenRISC 1000 power management
 
 
   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
   Copyright (C) 2008 Embecosm Limited
   Copyright (C) 2008 Embecosm Limited
 
 
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
 
 
   This file is part of OpenRISC 1000 Architectural Simulator.
   This file is part of OpenRISC 1000 Architectural Simulator.
 
 
   This program is free software; you can redistribute it and/or modify it
   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the Free
   under the terms of the GNU General Public License as published by the Free
   Software Foundation; either version 3 of the License, or (at your option)
   Software Foundation; either version 3 of the License, or (at your option)
   any later version.
   any later version.
 
 
   This program is distributed in the hope that it will be useful, but WITHOUT
   This program is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   more details.
   more details.
 
 
   You should have received a copy of the GNU General Public License along
   You should have received a copy of the GNU General Public License along
   with this program.  If not, see <http://www.gnu.org/licenses/>. */
   with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 
/* This program is commented throughout in a fashion suitable for processing
/* This program is commented throughout in a fashion suitable for processing
   with Doxygen. */
   with Doxygen. */
 
 
 
 
/* Autoconf and/or portability configuration */
/* Autoconf and/or portability configuration */
#include "config.h"
#include "config.h"
 
 
/* Package includes */
/* Package includes */
#include "spr-defs.h"
#include "spr-defs.h"
#include "execute.h"
#include "execute.h"
#include "sim-config.h"
#include "sim-config.h"
 
 
 
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/*!Reset power management
/*!Reset power management
 
 
   Initializes PMR register by clearing it.                                  */
   Initializes PMR register by clearing it.                                  */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
void
void
pm_reset ()
pm_reset ()
{
{
  if (config.sim.verbose)
  if (config.sim.verbose)
    {
    {
      PRINTF ("Resetting Power Management.\n");
      PRINTF ("Resetting Power Management.\n");
    }
    }
 
 
  cpu_state.sprs[SPR_PMR] = 0;
  cpu_state.sprs[SPR_PMR] = 0;
 
 
}                               /* pm_reset() */
}                               /* pm_reset() */
 
 
 
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/*!Enable or disable power management
/*!Enable or disable power management
 
 
   Set the corresponding field in the UPR
   Set the corresponding field in the UPR
 
 
   @param[in] val  The value to use
   @param[in] val  The value to use
   @param[in] dat  The config data structure (not used here)                 */
   @param[in] dat  The config data structure (not used here)                 */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
static void
static void
pm_enabled (union param_val val, void *dat)
pm_enabled (union param_val val, void *dat)
{
{
  if (val.int_val)
  if (val.int_val)
    {
    {
      cpu_state.sprs[SPR_UPR] |= SPR_UPR_PMP;
      cpu_state.sprs[SPR_UPR] |= SPR_UPR_PMP;
    }
    }
  else
  else
    {
    {
      cpu_state.sprs[SPR_UPR] &= ~SPR_UPR_PMP;
      cpu_state.sprs[SPR_UPR] &= ~SPR_UPR_PMP;
    }
    }
 
 
  config.pm.enabled = val.int_val;
  config.pm.enabled = val.int_val;
 
 
}                               /* pm_enabled() */
}                               /* pm_enabled() */
 
 
 
 
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
/*!Set up a new power management configuration section                       */
/*!Set up a new power management configuration section                       */
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
void
void
reg_pm_sec ()
reg_pm_sec ()
{
{
  struct config_section *sec = reg_config_sec ("pm", NULL, NULL);
  struct config_section *sec = reg_config_sec ("pm", NULL, NULL);
 
 
  reg_config_param (sec, "enabled", paramt_int, pm_enabled);
  reg_config_param (sec, "enabled", PARAMT_INT, pm_enabled);
 
 
}                               /* reg_pm_sec() */
}                               /* reg_pm_sec() */
 
 

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