Esempio n. 1
0
void malipmm_kernel_subsystem_terminate( mali_kernel_subsystem_identifier id )
{
	/* Check this is the right system */
	MALI_DEBUG_ASSERT( id == mali_subsystem_pmm_id );
	MALI_DEBUG_ASSERT_POINTER(pmm_state);

	if( pmm_state )
	{
		_mali_osk_resource_type_t t = PMU;
#if PMM_OS_TEST
		power_test_end();
#endif
		/* Get the lock so we can shutdown */
		MALI_PMM_LOCK(pmm_state);
		pmm_state->status = MALI_PMM_STATUS_OFF;
		MALI_PMM_UNLOCK(pmm_state);
		pmm_policy_term(pmm_state);
		_mali_osk_irq_term( pmm_state->irq );
#ifdef CONFIG_SMP
                _mali_osk_lock_term(mali_pmm_lock);
#endif /* CONFIG_SMP */

		_mali_osk_notification_queue_term( pmm_state->queue );
		_mali_osk_notification_queue_term( pmm_state->iqueue );
		if( pmm_state->pmu_initialized ) mali_platform_deinit(&t);
		_mali_osk_atomic_term( &(pmm_state->messages_queued) );
		MALI_PMM_LOCK_TERM(pmm_state);
		_mali_osk_free(pmm_state);
		pmm_state = NULL; 
	}

	MALIPMM_DEBUG_PRINT( ("PMM: subsystem terminated\n") );
}
Esempio n. 2
0
void malipmm_irq_bhandler(void *data)
{
	_mali_pmm_internal_state_t *pmm;
	pmm = (_mali_pmm_internal_state_t *)data;
	MALI_DEBUG_ASSERT_POINTER(pmm);

#if PMM_OS_TEST
	if( power_test_check() ) return;
#endif

	MALI_PMM_LOCK(pmm);
#if MALI_STATE_TRACKING
	pmm->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */

	/* Quick out when we are shutting down */
	if( pmm->status == MALI_PMM_STATUS_OFF )
	{

	#if MALI_STATE_TRACKING
		pmm->mali_pmm_lock_acquired = 0;
	#endif /* MALI_STATE_TRACKING */

		MALI_PMM_UNLOCK(pmm);
		return;
	}

	MALIPMM_DEBUG_PRINT( ("PMM: bhandler - Processing event\n") );

	if( pmm->missed > 0 )
	{
		MALI_PRINT_ERROR( ("PMM: Failed to send %d events", pmm->missed) );
		pmm_fatal_reset( pmm );
	}
	
	if( pmm->check_policy )
	{
		pmm->check_policy = MALI_FALSE;
		pmm_policy_check_policy(pmm);
	}
	else
	{
		/* Perform event processing */
		pmm_event_process();
		if( pmm->fatal_power_err )
		{
			/* Try a reset */
			pmm_fatal_reset( pmm );
		}
	}

#if MALI_STATE_TRACKING
	pmm->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */

	MALI_PMM_UNLOCK(pmm);
}
Esempio n. 3
0
_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);

	/* 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 = mali_platform_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)) );
	}

	MALI_PMM_UNLOCK(pmm);
	
	return err;
}
Esempio n. 4
0
void malipmm_irq_bhandler(void *data)
{
	_mali_pmm_internal_state_t *pmm;
	pmm = (_mali_pmm_internal_state_t *)data;
	MALI_DEBUG_ASSERT_POINTER(pmm);

#if PMM_OS_TEST
	if( power_test_check() ) return;
#endif

#ifdef CONFIG_SMP
	_mali_osk_lock_wait( mali_pmm_lock, _MALI_OSK_LOCKMODE_RW );
#endif /* CONFIG_SMP */
	MALI_PMM_LOCK(pmm);

	/* Quick out when we are shutting down */
	if( pmm->status == MALI_PMM_STATUS_OFF )
	{
		MALI_PMM_UNLOCK(pmm);
#ifdef CONFIG_SMP
		_mali_osk_lock_signal( mali_pmm_lock, _MALI_OSK_LOCKMODE_RW );
#endif /* CONFIG_SMP */
		return;
	}

	MALIPMM_DEBUG_PRINT( ("PMM: bhandler - Processing event\n") );

	if( pmm->missed > 0 )
	{
		MALI_PRINT_ERROR( ("PMM: Failed to send %d events", pmm->missed) );
		pmm_fatal_reset( pmm );
	}
	
	if( pmm->check_policy )
	{
		pmm->check_policy = MALI_FALSE;
		pmm_policy_check_policy(pmm);
	}
	else
	{
		/* Perform event processing */
		pmm_event_process();
		if( pmm->fatal_power_err )
		{
			/* Try a reset */
			pmm_fatal_reset( pmm );
		}
	}

	MALI_PMM_UNLOCK(pmm);
#ifdef CONFIG_SMP
	_mali_osk_lock_signal(mali_pmm_lock, _MALI_OSK_LOCKMODE_RW );
#endif /* CONFIG_SMP */
}
Esempio n. 5
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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);
	}
}
Esempio n. 6
0
void malipmm_core_unregister( mali_pmm_core_id core )
{
	_mali_pmm_internal_state_t *pmm = GET_PMM_STATE_PTR;
	MALI_DEBUG_ASSERT_POINTER(pmm);

	MALI_PMM_LOCK(pmm);

	/* Check if the core is registered in PMM */
	MALI_PMM_DEBUG_ASSERT_CORES_SUBSET( pmm->cores_registered, core );

	MALIPMM_DEBUG_PRINT( ("PMM: core unregistered: (0x%x) %s\n", core, pmm_trace_get_core_name(core)) );

	{
#if MALI_PMM_TRACE
		mali_pmm_core_mask old_power = pmm->cores_powered;
#endif

#if !MALI_PMM_NO_PMU
		/* Turn off the core */
		if( mali_platform_powerdown( core ) != _MALI_OSK_ERR_OK )
		{
			MALI_PRINT_ERROR( ("PMM: Error powering down unregistered core: (0x%x) %s\n", 
									core, pmm_trace_get_core_name(core)) );
		}
#endif

		/* Remove the core from the system */
		pmm->cores_registered &= (~core);
		pmm->cores_idle &= (~core);
		pmm->cores_powered &= (~core);
		pmm->cores_pend_down &= (~core);
		pmm->cores_pend_up &= (~core);
		pmm->cores_ack_down &= (~core);
		pmm->cores_ack_up &= (~core);

		pmm_update_system_state( pmm );

#if MALI_PMM_TRACE
		_mali_pmm_trace_hardware_change( old_power, pmm->cores_powered );
#endif		
	}

	MALI_PMM_UNLOCK(pmm);
}
Esempio n. 7
0
void malipmm_kernel_subsystem_terminate( mali_kernel_subsystem_identifier id )
{
	/* Check this is the right system */
	MALI_DEBUG_ASSERT( id == mali_subsystem_pmm_id );
	MALI_DEBUG_ASSERT_POINTER(pmm_state);

	if( pmm_state )
	{
#if PMM_OS_TEST
		power_test_end();
#endif
		/* Get the lock so we can shutdown */
		MALI_PMM_LOCK(pmm_state);
#if MALI_STATE_TRACKING
		pmm_state->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */
		pmm_state->status = MALI_PMM_STATUS_OFF;
#if MALI_STATE_TRACKING
		pmm_state->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */
		MALI_PMM_UNLOCK(pmm_state);
		_mali_osk_pmm_ospmm_cleanup();
		pmm_policy_term(pmm_state);
		_mali_osk_irq_term( pmm_state->irq );
		_mali_osk_notification_queue_term( pmm_state->queue );
		_mali_osk_notification_queue_term( pmm_state->iqueue );
		if (pmm_state->cores_registered) malipmm_powerdown(pmm_state->cores_registered,MALI_POWER_MODE_LIGHT_SLEEP);
#if USING_MALI_PMU
		if( pmm_state->pmu_initialized )
		{
			_mali_osk_resource_type_t t = PMU;
			mali_pmm_pmu_deinit(&t);
		}
#endif /* USING_MALI_PMU */

		_mali_osk_atomic_term( &(pmm_state->messages_queued) );
		MALI_PMM_LOCK_TERM(pmm_state);
		_mali_osk_free(pmm_state);
		pmm_state = NULL; 
	}

	MALIPMM_DEBUG_PRINT( ("PMM: subsystem terminated\n") );
}
Esempio n. 8
0
void malipmm_core_unregister( mali_pmm_core_id core )
{
	_mali_pmm_internal_state_t *pmm = GET_PMM_STATE_PTR;
	MALI_DEBUG_ASSERT_POINTER(pmm);

	MALI_PMM_LOCK(pmm);
#if MALI_STATE_TRACKING
	pmm->mali_pmm_lock_acquired = 1;
#endif /* MALI_STATE_TRACKING */


	/* Check if the core is registered in PMM */
	MALI_PMM_DEBUG_ASSERT_CORES_SUBSET( pmm->cores_registered, core );

	MALIPMM_DEBUG_PRINT( ("PMM: core unregistered: (0x%x) %s\n", core, pmm_trace_get_core_name(core)) );

	{
#if MALI_PMM_TRACE
		mali_pmm_core_mask old_power = pmm->cores_powered;
#endif

		/* Remove the core from the system */
		pmm->cores_idle &= (~core);
		pmm->cores_powered &= (~core);
		pmm->cores_pend_down &= (~core);
		pmm->cores_pend_up &= (~core);
		pmm->cores_ack_down &= (~core);
		pmm->cores_ack_up &= (~core);

		pmm_update_system_state( pmm );

#if MALI_PMM_TRACE
		_mali_pmm_trace_hardware_change( old_power, pmm->cores_powered );
#endif		
	}

#if MALI_STATE_TRACKING
	pmm->mali_pmm_lock_acquired = 0;
#endif /* MALI_STATE_TRACKING */

	MALI_PMM_UNLOCK(pmm);
}
Esempio n. 9
0
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 = mali_platform_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 )
			{
				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);
				/* 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);
}
Esempio n. 10
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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
				 */
				MALI_PMM_UNLOCK(pmm);
				err = mali_core_signal_power_up( cores_list[n], MALI_FALSE );
				MALI_PMM_LOCK(pmm);

				if( err != _MALI_OSK_ERR_OK )
				{
					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 = mali_platform_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;
}
Esempio n. 11
0
void pmm_power_down_cancel( _mali_pmm_internal_state_t *pmm )
{
	int n;
	mali_pmm_core_mask pd, ad;
	_mali_osk_errcode_t err;
	volatile mali_pmm_core_mask *pregistered;

	MALI_DEBUG_ASSERT_POINTER(pmm);

	MALIPMM_DEBUG_PRINT( ("PMM: Cancelling power down\n") );

	pd = pmm->cores_pend_down;
	ad = pmm->cores_ack_down;
	/* Clear the pending cores so that they don't move to the off
	 * queue if they haven't already
	 */
	pmm->cores_pend_down = 0;
	pmm->cores_ack_down = 0;
	pregistered = &(pmm->cores_registered);

	/* Power up all the pending power down cores - just so
	 * we make sure the system is in a known state, as a
	 * pending core might have sent an acknowledged message
	 * which hasn't been read yet.
	 */
	for( n = 0; n < SIZEOF_CORES_LIST; n++ )
	{
		if( (cores_list[n] & pd) != 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 power up function could fail
			 * as the core is unregistered before we tell it to power
			 * up, but it does not matter as we are terminating
			 */
			MALI_PMM_UNLOCK(pmm);
			/* As we are cancelling - only move the cores back to the queue - 
			 * no reset needed
			 */
			err = mali_core_signal_power_up( cores_list[n], MALI_TRUE );
			MALI_PMM_LOCK(pmm);

			/* Update pending list with the current registered cores */
			pd &= (*pregistered);

			if( err != _MALI_OSK_ERR_OK )
			{
				MALI_DEBUG_ASSERT( (err == _MALI_OSK_ERR_BUSY && 
										((cores_list[n] & ad) == 0))  ||
										(err == _MALI_OSK_ERR_FAULT &&
										(*pregistered & cores_list[n]) == 0) );
				/* If we didn't power up a core - it must be active and 
				 * hasn't actually tried to power down - this is expected
				 * for cores that haven't acknowledged
				 * Alternatively we are shutting down and the core has
				 * been unregistered
				 */
			}
		}
	}
	/* Only used in debug builds */
	MALI_IGNORE(ad);
}
Esempio n. 12
0
mali_pmm_core_mask pmm_cores_to_power_down( _mali_pmm_internal_state_t *pmm, mali_pmm_core_mask cores, mali_bool immediate_only )
{
	mali_pmm_core_mask cores_subset;
	_mali_osk_errcode_t err;
	MALI_DEBUG_ASSERT_POINTER(pmm);
	MALI_PMM_DEBUG_ASSERT_CORES_SUBSET( pmm->cores_registered, cores );

	/* Check that cores aren't pending power up when asked for power down */
	MALI_DEBUG_ASSERT( pmm->cores_pend_up == 0 );

	cores_subset = (pmm->cores_powered & cores);
	if( cores_subset != 0 )
	{
		int n;
		volatile mali_pmm_core_mask *ppowered = &(pmm->cores_powered);

		/* There are some cores that need powering up, but we may
		 * need to wait until they are idle
		 */
		for( n = SIZEOF_CORES_LIST-1; n >= 0; n-- )
		{
			if( (cores_list[n] & cores_subset) != 0 )
			{
				/* Core is to be powered down */
				pmm->cores_pend_down |= cores_list[n];

				/* 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
				 * down, but it does not matter as we are terminating
				 */
				MALI_PMM_UNLOCK(pmm);
				/* Signal the core to power down
				 * If it is busy (not idle) it will set a pending power down flag 
				 * (as long as we don't want to only immediately power down). 
				 * If it isn't busy it will move out of the idle queue right
				 * away
				 */
				err = mali_core_signal_power_down( cores_list[n], immediate_only );
				MALI_PMM_LOCK(pmm);

				/* Re-read cores_subset in case it has changed */
				cores_subset = (*ppowered & cores);

				if( err == _MALI_OSK_ERR_OK )
				{
					/* We moved an idle core to the power down queue
					 * which means it is now acknowledged (if it is still 
					 * registered)
					 */
					pmm->cores_ack_down |= (cores_list[n] & cores_subset);
				}
				else
				{
					MALI_DEBUG_ASSERT( err == _MALI_OSK_ERR_BUSY ||
										(err == _MALI_OSK_ERR_FAULT &&
										(*ppowered & cores_list[n]) == 0) );
					/* If we didn't move a core - it must be active, so
					 * leave it pending, so we get an acknowledgement (when
					 * not in immediate only mode)
					 * Alternatively we are shutting down and the core has
					 * been unregistered
					 */
				}
			}
		}
	}

	return cores_subset;
}