void malipmm_force_powerup( void )
{
_mali_pmm_internal_state_t *pmm = GET_PMM_STATE_PTR;
MALI_DEBUG_ASSERT_POINTER(pmm);
MALI_PMM_LOCK(pmm);
pmm->status = MALI_PMM_STATUS_OFF;
MALI_PMM_UNLOCK(pmm);
/* flush PMM workqueue */
_mali_osk_flush_workqueue( pmm->irq );
if (pmm->cores_powered == 0)
{
malipmm_powerup(pmm->cores_registered);
}
}
_mali_osk_errcode_t malipmm_core_register( mali_pmm_core_id core )
{
_mali_osk_errcode_t err;
_mali_pmm_internal_state_t *pmm = GET_PMM_STATE_PTR;
if( pmm == NULL )
{
/* PMM state has not been created, this is because the PMU resource has not been
* created yet.
* This probably means that the PMU resource has not been specfied as the first
* resource in the config file
*/
MALI_PRINT_ERROR( ("PMM: Cannot register core %s because the PMU resource has not been\n initialized. Please make sure the PMU resource is the first resource in the\n resource configuration.\n",
pmm_trace_get_core_name(core)) );
MALI_ERROR(_MALI_OSK_ERR_FAULT);
}
MALI_PMM_LOCK(pmm);
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */
/* Check if the core is registered more than once in PMM */
MALI_DEBUG_ASSERT( (pmm->cores_registered & core) == 0 );
MALIPMM_DEBUG_PRINT( ("PMM: core registered: (0x%x) %s\n", core, pmm_trace_get_core_name(core)) );
#if !MALI_PMM_NO_PMU
/* Make sure the core is powered up */
err = malipmm_powerup( core );
#else
err = _MALI_OSK_ERR_OK;
#endif
if( _MALI_OSK_ERR_OK == err )
{
#if MALI_PMM_TRACE
mali_pmm_core_mask old_power = pmm->cores_powered;
#endif
/* Assume a registered core is now powered up and idle */
pmm->cores_registered |= core;
pmm->cores_idle |= core;
pmm->cores_powered |= core;
pmm_update_system_state( pmm );
#if MALI_PMM_TRACE
_mali_pmm_trace_hardware_change( old_power, pmm->cores_powered );
#endif
}
else
{
MALI_PRINT_ERROR( ("PMM: Error(%d) powering up registered core: (0x%x) %s\n",
err, core, pmm_trace_get_core_name(core)) );
}
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */
MALI_PMM_UNLOCK(pmm);
return err;
}
void pmm_fatal_reset( _mali_pmm_internal_state_t *pmm )
{
_mali_osk_errcode_t err = _MALI_OSK_ERR_OK;
_mali_osk_notification_t *msg = NULL;
mali_pmm_status status;
MALI_DEBUG_ASSERT_POINTER(pmm);
MALIPMM_DEBUG_PRINT( ("PMM: Fatal Reset called") );
MALI_DEBUG_ASSERT( pmm->status != MALI_PMM_STATUS_OFF );
/* Reset the common status */
pmm->waiting = 0;
pmm->missed = 0;
pmm->fatal_power_err = MALI_FALSE;
pmm->no_events = 0;
pmm->check_policy = MALI_FALSE;
pmm->cores_pend_down = 0;
pmm->cores_pend_up = 0;
pmm->cores_ack_down = 0;
pmm->cores_ack_up = 0;
pmm->is_dvfs_active = 0;
#if MALI_PMM_TRACE
pmm->messages_sent = 0;
pmm->messages_received = 0;
pmm->imessages_sent = 0;
pmm->imessages_received = 0;
MALI_PRINT( ("PMM Trace: *** Fatal reset occurred ***") );
#endif
/* Set that we are unavailable whilst resetting */
pmm->state = MALI_PMM_STATE_UNAVAILABLE;
status = pmm->status;
pmm->status = MALI_PMM_STATUS_OFF;
/* We want all cores powered */
pmm->cores_powered = pmm->cores_registered;
/* The cores may not be idle, but this state will be rectified later */
pmm->cores_idle = pmm->cores_registered;
/* So power on any cores that are registered */
if( pmm->cores_registered != 0 )
{
int n;
volatile mali_pmm_core_mask *pregistered = &(pmm->cores_registered);
#if !MALI_PMM_NO_PMU
err = malipmm_powerup( pmm->cores_registered );
#endif
if( err != _MALI_OSK_ERR_OK )
{
/* This is very bad as we can't even be certain the cores are now
* powered up
*/
MALI_PRINT_ERROR( ("PMM: Failed to perform PMM reset!\n") );
/* TBD driver exit? */
}
for( n = SIZEOF_CORES_LIST-1; n >= 0; n-- )
{
if( (cores_list[n] & (*pregistered)) != 0 )
{
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */
MALI_PMM_UNLOCK(pmm);
/* Core is now active - so try putting it in the idle queue */
err = mali_core_signal_power_up( cores_list[n], MALI_FALSE );
MALI_PMM_LOCK(pmm);
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */
/* We either succeeded, or we were not off anyway, or we have
* just be deregistered
*/
MALI_DEBUG_ASSERT( (err == _MALI_OSK_ERR_OK) ||
(err == _MALI_OSK_ERR_BUSY) ||
(err == _MALI_OSK_ERR_FAULT &&
(*pregistered & cores_list[n]) == 0) );
}
}
}
/* Unblock any pending OS event */
if( status == MALI_PMM_STATUS_OS_POWER_UP )
{
/* Get the OS data and respond to the power up */
_mali_osk_pmm_power_up_done( pmm_retrieve_os_event_data( pmm ) );
}
if( status == MALI_PMM_STATUS_OS_POWER_DOWN )
{
/* Get the OS data and respond to the power down
* NOTE: We are not powered down at this point due to power problems,
* so we are lying to the system, but something bad has already
* happened and we are trying unstick things
* TBD - Add busy loop to power down cores?
*/
_mali_osk_pmm_power_down_done( pmm_retrieve_os_event_data( pmm ) );
}
/* Purge the event queues */
do
{
if( _mali_osk_notification_queue_dequeue( pmm->iqueue, &msg ) == _MALI_OSK_ERR_OK )
{
_mali_osk_notification_delete ( msg );
break;
}
} while (MALI_TRUE);
do
{
if( _mali_osk_notification_queue_dequeue( pmm->queue, &msg ) == _MALI_OSK_ERR_OK )
{
_mali_osk_notification_delete ( msg );
break;
}
} while (MALI_TRUE);
/* Return status/state to normal */
pmm->status = MALI_PMM_STATUS_IDLE;
pmm_update_system_state(pmm);
}
mali_bool pmm_invoke_power_up( _mali_pmm_internal_state_t *pmm )
{
_mali_osk_errcode_t err;
MALI_DEBUG_ASSERT_POINTER(pmm);
/* Check that cores are pending power up during power up invoke */
MALI_DEBUG_ASSERT( pmm->cores_pend_up != 0 );
/* Check that cores are not pending power down during power up invoke */
MALI_DEBUG_ASSERT( pmm->cores_pend_down == 0 );
if( pmm_power_up_okay( pmm ) )
{
/* Power up has completed - sort out subsystem core status */
int n;
/* Use volatile to access, so that it is updated if any cores are unregistered */
volatile mali_pmm_core_mask *ppendup = &(pmm->cores_pend_up);
#if MALI_PMM_TRACE
mali_pmm_core_mask old_power = pmm->cores_powered;
#endif
/* Move cores into idle queues */
for( n = 0; n < SIZEOF_CORES_LIST; n++ )
{
if( (cores_list[n] & (*ppendup)) != 0 )
{
/* Can't hold the power lock, when acessing subsystem mutex via
* the core power call.
* Due to terminatation of driver requiring a subsystem mutex
* and then power lock held to unregister a core.
* This does mean that the following function could fail
* as the core is unregistered before we tell it to power
* up, but it does not matter as we are terminating
*/
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */
MALI_PMM_UNLOCK(pmm);
err = mali_core_signal_power_up( cores_list[n], MALI_FALSE );
MALI_PMM_LOCK(pmm);
#if MALI_STATE_TRACKING
pmm->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */
if( err != _MALI_OSK_ERR_OK )
{
MALI_DEBUG_PRINT(1,("In pmm_invoke_power_up:: The error and pending cores to be powered up are...%x...%x",err,*ppendup));
MALI_DEBUG_ASSERT( (err == _MALI_OSK_ERR_FAULT &&
(*ppendup & cores_list[n]) == 0) );
/* We only expect this to fail when we are shutting down
* and the core has been unregistered
*/
}
}
}
/* Finished power up - add cores to idle and powered list */
pmm->cores_powered |= (*ppendup);
pmm->cores_idle |= (*ppendup);
/* Reset pending/acknowledge status */
pmm->cores_pend_up = 0;
pmm->cores_ack_up = 0;
#if MALI_PMM_TRACE
_mali_pmm_trace_hardware_change( old_power, pmm->cores_powered );
#endif
return MALI_TRUE;
}
else
{
#if !MALI_PMM_NO_PMU
/* Power up must now be done */
err = malipmm_powerup( pmm->cores_pend_up );
#else
err = _MALI_OSK_ERR_OK;
#endif
if( err != _MALI_OSK_ERR_OK )
{
MALI_PRINT_ERROR( ("PMM: Failed to get PMU to power up cores - (0x%x) %s",
pmm->cores_pend_up, pmm_trace_get_core_name(pmm->cores_pend_up)) );
pmm->fatal_power_err = MALI_TRUE;
}
else
{
/* TBD - Update core status immediately rather than use event message */
_mali_uk_pmm_message_s event = {
NULL,
MALI_PMM_EVENT_INTERNAL_POWER_UP_ACK,
0 };
/* All the cores that were pending power up, have now completed power up */
event.data = pmm->cores_pend_up;
_mali_ukk_pmm_event_message( &event );
MALIPMM_DEBUG_PRINT( ("PMM: Sending ACK to power up") );
}
}
/* Always return false, as we need an interrupt to acknowledge
* when power up is complete
*/
return MALI_FALSE;
}