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[/] [openrisc/] [trunk/] [or1ksim/] [pm/] [pm.c] - Blame information for rev 609

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Line No. Rev Author Line
1 19 jeremybenn
/* pm.c -- Simulation of OpenRISC 1000 power management
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   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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   Copyright (C) 2008 Embecosm Limited
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   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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   This file is part of OpenRISC 1000 Architectural Simulator.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the Free
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   Software Foundation; either version 3 of the License, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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   more details.
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   You should have received a copy of the GNU General Public License along
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   with this program.  If not, see <http://www.gnu.org/licenses/>. */
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/* This program is commented throughout in a fashion suitable for processing
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   with Doxygen. */
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/* Autoconf and/or portability configuration */
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#include "config.h"
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/* Package includes */
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#include "spr-defs.h"
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#include "execute.h"
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#include "sim-config.h"
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/*---------------------------------------------------------------------------*/
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/*!Reset power management
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   Initializes PMR register by clearing it.                                  */
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/*---------------------------------------------------------------------------*/
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void
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pm_reset ()
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{
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  if (config.sim.verbose)
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    {
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      PRINTF ("Resetting Power Management.\n");
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    }
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  cpu_state.sprs[SPR_PMR] = 0;
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}                               /* pm_reset() */
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/*---------------------------------------------------------------------------*/
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/*!Enable or disable power management
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   Set the corresponding field in the UPR
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   @param[in] val  The value to use
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   @param[in] dat  The config data structure (not used here)                 */
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/*---------------------------------------------------------------------------*/
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static void
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pm_enabled (union param_val val, void *dat)
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{
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  if (val.int_val)
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    {
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      cpu_state.sprs[SPR_UPR] |= SPR_UPR_PMP;
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    }
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  else
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    {
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      cpu_state.sprs[SPR_UPR] &= ~SPR_UPR_PMP;
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    }
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  config.pm.enabled = val.int_val;
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}                               /* pm_enabled() */
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/*---------------------------------------------------------------------------*/
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/*!Set up a new power management configuration section                       */
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/*---------------------------------------------------------------------------*/
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void
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reg_pm_sec ()
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{
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  struct config_section *sec = reg_config_sec ("pm", NULL, NULL);
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  reg_config_param (sec, "enabled", PARAMT_INT, pm_enabled);
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}                               /* reg_pm_sec() */

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