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/*
* Copyright (C) 2010-2011 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* @file mali_pmm_policy.c
* Implementation of the common routines for power management module
* policies
*/
#if USING_MALI_PMM
#include "mali_ukk.h"
#include "mali_kernel_common.h"
#include "mali_pmm.h"
#include "mali_pmm_system.h"
#include "mali_pmm_state.h"
#include "mali_pmm_policy.h"
#include "mali_pmm_policy_alwayson.h"
#include "mali_pmm_policy_jobcontrol.h"
/* Call back function for timer expiration */
static void pmm_policy_timer_callback( void *arg );
_mali_osk_errcode_t pmm_policy_timer_init( _pmm_policy_timer_t *pptimer, u32 timeout, mali_pmm_event_id id )
{
MALI_DEBUG_ASSERT_POINTER(pptimer);
/* All values get 0 as default */
_mali_osk_memset(pptimer, 0, sizeof(*pptimer));
pptimer->timer = _mali_osk_timer_init();
if( pptimer->timer )
{
_mali_osk_timer_setcallback( pptimer->timer, pmm_policy_timer_callback, (void *)pptimer );
pptimer->timeout = timeout;
pptimer->event_id = id;
MALI_SUCCESS;
}
return _MALI_OSK_ERR_FAULT;
}
static void pmm_policy_timer_callback( void *arg )
{
_pmm_policy_timer_t *pptimer = (_pmm_policy_timer_t *)arg;
MALI_DEBUG_ASSERT_POINTER(pptimer);
MALI_DEBUG_ASSERT( pptimer->set );
/* Set timer expired and flag there is a policy to check */
pptimer->expired = MALI_TRUE;
malipmm_set_policy_check();
}
void pmm_policy_timer_term( _pmm_policy_timer_t *pptimer )
{
MALI_DEBUG_ASSERT_POINTER(pptimer);
_mali_osk_timer_del( pptimer->timer );
_mali_osk_timer_term( pptimer->timer );
pptimer->timer = NULL;
}
mali_bool pmm_policy_timer_start( _pmm_policy_timer_t *pptimer )
{
MALI_DEBUG_ASSERT_POINTER(pptimer);
MALI_DEBUG_ASSERT_POINTER(pptimer->timer);
if( !(pptimer->set) )
{
pptimer->set = MALI_TRUE;
pptimer->expired = MALI_FALSE;
pptimer->start = _mali_osk_time_tickcount();
_mali_osk_timer_add( pptimer->timer, pptimer->timeout );
return MALI_TRUE;
}
return MALI_FALSE;
}
mali_bool pmm_policy_timer_stop( _pmm_policy_timer_t *pptimer )
{
MALI_DEBUG_ASSERT_POINTER(pptimer);
MALI_DEBUG_ASSERT_POINTER(pptimer->timer);
if( pptimer->set )
{
_mali_osk_timer_del( pptimer->timer );
pptimer->set = MALI_FALSE;
pptimer->expired = MALI_FALSE;
return MALI_TRUE;
}
return MALI_FALSE;
}
mali_bool pmm_policy_timer_raise_event( _pmm_policy_timer_t *pptimer )
{
MALI_DEBUG_ASSERT_POINTER(pptimer);
if( pptimer->expired )
{
_mali_uk_pmm_message_s event = {
NULL,
MALI_PMM_EVENT_TIMEOUT, /* Assume timeout id, but set it below */
0 };
event.id = pptimer->event_id;
event.data = (mali_pmm_message_data)pptimer->start;
/* Don't need to do any other notification with this timer */
pptimer->expired = MALI_FALSE;
/* Unset timer so it is free to be set again */
pptimer->set = MALI_FALSE;
_mali_ukk_pmm_event_message( &event );
return MALI_TRUE;
}
return MALI_FALSE;
}
mali_bool pmm_policy_timer_valid( u32 timer_start, u32 other_start )
{
return (_mali_osk_time_after( other_start, timer_start ) == 0);
}
_mali_osk_errcode_t pmm_policy_init(_mali_pmm_internal_state_t *pmm)
{
_mali_osk_errcode_t err;
MALI_DEBUG_ASSERT_POINTER(pmm);
switch( pmm->policy )
{
case MALI_PMM_POLICY_ALWAYS_ON:
{
err = pmm_policy_init_always_on();
}
break;
case MALI_PMM_POLICY_JOB_CONTROL:
{
err = pmm_policy_init_job_control(pmm);
}
break;
case MALI_PMM_POLICY_NONE:
default:
err = _MALI_OSK_ERR_FAULT;
}
return err;
}
void pmm_policy_term(_mali_pmm_internal_state_t *pmm)
{
MALI_DEBUG_ASSERT_POINTER(pmm);
switch( pmm->policy )
{
case MALI_PMM_POLICY_ALWAYS_ON:
{
pmm_policy_term_always_on();
}
break;
case MALI_PMM_POLICY_JOB_CONTROL:
{
pmm_policy_term_job_control();
}
break;
case MALI_PMM_POLICY_NONE:
default:
MALI_PRINT_ERROR( ("PMM: Invalid policy terminated %d\n", pmm->policy) );
}
}
_mali_osk_errcode_t pmm_policy_process(_mali_pmm_internal_state_t *pmm, mali_pmm_message_t *event)
{
_mali_osk_errcode_t err;
MALI_DEBUG_ASSERT_POINTER(pmm);
MALI_DEBUG_ASSERT_POINTER(event);
switch( pmm->policy )
{
case MALI_PMM_POLICY_ALWAYS_ON:
{
err = pmm_policy_process_always_on( pmm, event );
}
break;
case MALI_PMM_POLICY_JOB_CONTROL:
{
err = pmm_policy_process_job_control( pmm, event );
}
break;
case MALI_PMM_POLICY_NONE:
default:
err = _MALI_OSK_ERR_FAULT;
}
return err;
}
void pmm_policy_check_policy( _mali_pmm_internal_state_t *pmm )
{
MALI_DEBUG_ASSERT_POINTER(pmm);
switch( pmm->policy )
{
case MALI_PMM_POLICY_JOB_CONTROL:
{
pmm_policy_check_job_control();
}
break;
default:
/* Nothing needs to be done */
break;
}
}
#endif /* USING_MALI_PMM */
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