diff options
Diffstat (limited to 'drivers/media/video/samsung/mali/common/pmm/mali_pmm_policy_jobcontrol.c')
| -rw-r--r-- | drivers/media/video/samsung/mali/common/pmm/mali_pmm_policy_jobcontrol.c | 470 |
1 files changed, 0 insertions, 470 deletions
diff --git a/drivers/media/video/samsung/mali/common/pmm/mali_pmm_policy_jobcontrol.c b/drivers/media/video/samsung/mali/common/pmm/mali_pmm_policy_jobcontrol.c deleted file mode 100644 index 237d702..0000000 --- a/drivers/media/video/samsung/mali/common/pmm/mali_pmm_policy_jobcontrol.c +++ /dev/null @@ -1,470 +0,0 @@ -/* - * Copyright (C) 2010 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_jobcontrol.c - * Implementation of the power management module policy - job control - */ - -#if USING_MALI_PMM - -#include "mali_ukk.h" -#include "mali_kernel_common.h" -#include "mali_platform.h" - -#include "mali_pmm.h" -#include "mali_pmm_system.h" -#include "mali_pmm_state.h" -#include "mali_pmm_policy.h" -#include "mali_pmm_policy_jobcontrol.h" - -typedef struct _pmm_policy_data_job_control -{ - _pmm_policy_timer_t latency; /**< Latency timeout timer for all cores */ - u32 core_active_start; /**< Last time a core was set to active */ - u32 timeout; /**< Timeout in ticks for latency timer */ -} _pmm_policy_data_job_control_t; - - -/* @ brief Local data for this policy - */ -static _pmm_policy_data_job_control_t *data_job_control = NULL; - -/* @brief Set up the timeout if it hasn't already been set and if there are active cores */ -static void job_control_timeout_setup( _mali_pmm_internal_state_t *pmm, _pmm_policy_timer_t *pptimer ) -{ - MALI_DEBUG_ASSERT_POINTER(pmm); - MALI_DEBUG_ASSERT_POINTER(pptimer); - - /* Do we have an inactivity time out and some powered cores? */ - if( pptimer->timeout > 0 && pmm->cores_powered != 0 ) - { - /* Is the system idle and all the powered cores are idle? */ - if( pmm->status == MALI_PMM_STATUS_IDLE && pmm->cores_idle == pmm->cores_powered ) - { - if( pmm_policy_timer_start(pptimer) ) - { - MALIPMM_DEBUG_PRINT( ("PMM policy - Job control: Setting in-activity latency timer\n") ); - } - } - else - { - /* We are not idle so there is no need for an inactivity timer - */ - if( pmm_policy_timer_stop(pptimer) ) - { - MALIPMM_DEBUG_PRINT( ("PMM policy - Job control: Removing in-activity latency timer\n") ); - } - } - } -} - -/* @brief Check the validity of the timeout - and if there is one set */ -static mali_bool job_control_timeout_valid( _mali_pmm_internal_state_t *pmm, _pmm_policy_timer_t *pptimer, u32 timer_start ) -{ - MALI_DEBUG_ASSERT_POINTER(pmm); - MALI_DEBUG_ASSERT_POINTER(pptimer); - - /* Not a valid timer! */ - if( pptimer->timeout == 0 ) return MALI_FALSE; - - /* Are some cores powered and are they all idle? */ - if( (pmm->cores_powered != 0) && (pmm->cores_idle == pmm->cores_powered) ) - { - /* Has latency timeout started after the last core was active? */ - if( pmm_policy_timer_valid( timer_start, data_job_control->core_active_start ) ) - { - return MALI_TRUE; - } - else - { - MALIPMM_DEBUG_PRINT( ("PMM: In-activity latency time out ignored - out of date\n") ); - } - } - else - { - if( pmm->cores_powered == 0 ) - { - MALIPMM_DEBUG_PRINT( ("PMM: In-activity latency time out ignored - cores already off\n") ); - } - else - { - MALIPMM_DEBUG_PRINT( ("PMM: In-activity latency time out ignored - cores active\n") ); - } - } - - return MALI_FALSE; -} - -_mali_osk_errcode_t pmm_policy_init_job_control( _mali_pmm_internal_state_t *pmm ) -{ - _mali_osk_errcode_t err; - MALI_DEBUG_ASSERT_POINTER( pmm ); - MALI_DEBUG_ASSERT( data_job_control == NULL ); - - data_job_control = (_pmm_policy_data_job_control_t *) _mali_osk_malloc(sizeof(*data_job_control)); - MALI_CHECK_NON_NULL( data_job_control, _MALI_OSK_ERR_NOMEM ); - - data_job_control->core_active_start = _mali_osk_time_tickcount(); - data_job_control->timeout = MALI_PMM_POLICY_JOBCONTROL_INACTIVITY_TIMEOUT; - - err = pmm_policy_timer_init( &data_job_control->latency, data_job_control->timeout, MALI_PMM_EVENT_TIMEOUT ); - if( err != _MALI_OSK_ERR_OK ) - { - _mali_osk_free( data_job_control ); - data_job_control = NULL; - return err; - } - - /* Start the latency timeout */ - job_control_timeout_setup( pmm, &data_job_control->latency ); - - MALI_SUCCESS; -} - -void pmm_policy_term_job_control(void) -{ - if( data_job_control != NULL ) - { - pmm_policy_timer_term( &data_job_control->latency ); - _mali_osk_free( data_job_control ); - data_job_control = NULL; - } -} - -static void pmm_policy_job_control_job_queued( _mali_pmm_internal_state_t *pmm ) -{ - mali_pmm_core_mask cores; - mali_pmm_core_mask cores_subset; - - /* Make sure that all cores are powered in this - * simple policy - */ - cores = pmm->cores_registered; - cores_subset = pmm_cores_to_power_up( pmm, cores ); - if( cores_subset != 0 ) - { - /* There are some cores that need powering up */ - if( !pmm_invoke_power_up( pmm ) ) - { - /* Need to wait until finished */ - pmm->status = MALI_PMM_STATUS_POLICY_POWER_UP; - } - } -} - -_mali_osk_errcode_t pmm_policy_process_job_control( _mali_pmm_internal_state_t *pmm, mali_pmm_message_t *event ) -{ - mali_pmm_core_mask cores; - mali_pmm_core_mask cores_subset; - MALI_DEBUG_ASSERT_POINTER(pmm); - MALI_DEBUG_ASSERT_POINTER(event); - MALI_DEBUG_ASSERT_POINTER(data_job_control); - - MALIPMM_DEBUG_PRINT( ("PMM: Job control policy process start - status=%d\n", pmm->status) ); - - /* Mainly the data is the cores */ - cores = pmm_cores_from_event_data( pmm, event ); - -#if MALI_STATE_TRACKING - pmm->mali_last_pmm_status = pmm->status; -#endif /* MALI_STATE_TRACKING */ - - switch( pmm->status ) - { - /**************** IDLE ****************/ - case MALI_PMM_STATUS_IDLE: - switch( event->id ) - { - case MALI_PMM_EVENT_OS_POWER_UP: - /* Not expected in this state */ - break; - - case MALI_PMM_EVENT_JOB_SCHEDULED: - - /* Update idle cores to indicate active - remove these! */ - pmm_cores_set_active( pmm, cores ); - /* Remember when this happened */ - data_job_control->core_active_start = event->ts; -#if MALI_POWER_MGMT_TEST_SUITE - _mali_osk_pmm_policy_events_notifications(MALI_PMM_EVENT_JOB_SCHEDULED); -#endif - - /*** FALL THROUGH to QUEUED to check POWER UP ***/ - - case MALI_PMM_EVENT_JOB_QUEUED: - - pmm_policy_job_control_job_queued( pmm ); -#if MALI_POWER_MGMT_TEST_SUITE - _mali_osk_pmm_policy_events_notifications(MALI_PMM_EVENT_JOB_QUEUED); -#endif - break; - - case MALI_PMM_EVENT_DVFS_PAUSE: - - cores_subset = pmm_cores_to_power_down( pmm, cores, MALI_FALSE ); - if ( cores_subset != 0 ) - { - if ( !pmm_power_down_okay( pmm ) ) - { - pmm->is_dvfs_active = 1; - pmm->status = MALI_PMM_STATUS_OS_POWER_DOWN; - pmm_save_os_event_data( pmm, event->data ); - break; - } - } - pmm->status = MALI_PMM_STATUS_DVFS_PAUSE; - _mali_osk_pmm_dvfs_operation_done(0); - break; - - case MALI_PMM_EVENT_OS_POWER_DOWN: - - /* Need to power down all cores even if we need to wait for them */ - cores_subset = pmm_cores_to_power_down( pmm, cores, MALI_FALSE ); - if( cores_subset != 0 ) - { - /* There are some cores that need powering down */ - if( !pmm_invoke_power_down( pmm, MALI_POWER_MODE_DEEP_SLEEP ) ) - { - /* We need to wait until they are idle */ - - pmm->status = MALI_PMM_STATUS_OS_POWER_DOWN; - /* Save the OS data to respond later */ - pmm_save_os_event_data( pmm, event->data ); - /* Exit this case - as we have to wait */ - break; - } - } - else - { - mali_platform_power_mode_change(MALI_POWER_MODE_DEEP_SLEEP); - - } - /* Set waiting status */ - pmm->status = MALI_PMM_STATUS_OS_WAITING; - /* All cores now down - respond to OS power event */ - _mali_osk_pmm_power_down_done( event->data ); - break; - - case MALI_PMM_EVENT_JOB_FINISHED: - - /* Update idle cores - add these! */ - pmm_cores_set_idle( pmm, cores ); -#if MALI_POWER_MGMT_TEST_SUITE - _mali_osk_pmm_policy_events_notifications(MALI_PMM_EVENT_JOB_FINISHED); -#endif - if( data_job_control->timeout > 0 ) - { - /* Wait for time out to fire */ - break; - } - /* For job control policy - turn off all cores */ - cores = pmm->cores_powered; - - /*** FALL THROUGH to TIMEOUT TEST as NO TIMEOUT ***/ - - case MALI_PMM_EVENT_TIMEOUT: - - /* Main job control policy - turn off cores after inactivity */ - if( job_control_timeout_valid( pmm, &data_job_control->latency, (u32)event->data ) ) - { - /* Valid timeout of inactivity - so find out if we can power down - * immedately - if we can't then this means the cores are still in fact - * active - */ - cores_subset = pmm_cores_to_power_down( pmm, cores, MALI_TRUE ); - if( cores_subset != 0 ) - { - /* Check if we can really power down, if not then we are not - * really in-active - */ - if( !pmm_invoke_power_down( pmm, MALI_POWER_MODE_LIGHT_SLEEP ) ) - { - pmm_power_down_cancel( pmm ); - } - } - /* else there are no cores powered up! */ - } -#if MALI_POWER_MGMT_TEST_SUITE - _mali_osk_pmm_policy_events_notifications(MALI_PMM_EVENT_TIMEOUT); -#endif - break; - - default: - /* Unexpected event */ - MALI_ERROR(_MALI_OSK_ERR_ITEM_NOT_FOUND); - } - break; - - /******************DVFS PAUSE**************/ - case MALI_PMM_STATUS_DVFS_PAUSE: - switch ( event->id ) - { - case MALI_PMM_EVENT_DVFS_RESUME: - - if ( pmm->cores_powered != 0 ) - { - pmm->cores_ack_down =0; - pmm_power_down_cancel( pmm ); - pmm->status = MALI_PMM_STATUS_IDLE; - } - else - { - pmm_policy_job_control_job_queued( pmm ); - } - _mali_osk_pmm_dvfs_operation_done( 0 ); - break; - - case MALI_PMM_EVENT_OS_POWER_DOWN: - /* Set waiting status */ - pmm->status = MALI_PMM_STATUS_OS_WAITING; - if ( pmm->cores_powered != 0 ) - { - if ( pmm_invoke_power_down( pmm, MALI_POWER_MODE_DEEP_SLEEP ) ) - { - _mali_osk_pmm_power_down_done( 0 ); - break; - } - } - else - { - mali_platform_power_mode_change(MALI_POWER_MODE_DEEP_SLEEP); - } - _mali_osk_pmm_power_down_done( 0 ); - break; - default: - break; - } - break; - - /**************** POWER UP ****************/ - case MALI_PMM_STATUS_OS_POWER_UP: - case MALI_PMM_STATUS_POLICY_POWER_UP: - switch( event->id ) - { - case MALI_PMM_EVENT_INTERNAL_POWER_UP_ACK: - /* Make sure cores powered off equal what we expect */ - MALI_DEBUG_ASSERT( cores == pmm->cores_pend_up ); - pmm_cores_set_up_ack( pmm, cores ); - - if( pmm_invoke_power_up( pmm ) ) - { - if( pmm->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 ) ); - } - pmm->status = MALI_PMM_STATUS_IDLE; - } - break; - - default: - /* Unexpected event */ - MALI_ERROR(_MALI_OSK_ERR_ITEM_NOT_FOUND); - } - break; - - /**************** POWER DOWN ****************/ - case MALI_PMM_STATUS_OS_POWER_DOWN: - case MALI_PMM_STATUS_POLICY_POWER_DOWN: - switch( event->id ) - { - - case MALI_PMM_EVENT_INTERNAL_POWER_DOWN_ACK: - - pmm_cores_set_down_ack( pmm, cores ); - - if ( pmm->is_dvfs_active == 1 ) - { - if( pmm_power_down_okay( pmm ) ) - { - pmm->is_dvfs_active = 0; - pmm->status = MALI_PMM_STATUS_DVFS_PAUSE; - _mali_osk_pmm_dvfs_operation_done( pmm_retrieve_os_event_data( pmm ) ); - } - break; - } - - /* Now check if we can power down */ - if( pmm_invoke_power_down( pmm, MALI_POWER_MODE_DEEP_SLEEP ) ) - { - if( pmm->status == MALI_PMM_STATUS_OS_POWER_DOWN ) - { - /* Get the OS data and respond to the power down */ - _mali_osk_pmm_power_down_done( pmm_retrieve_os_event_data( pmm ) ); - } - pmm->status = MALI_PMM_STATUS_OS_WAITING; - } - break; - - default: - /* Unexpected event */ - MALI_ERROR(_MALI_OSK_ERR_ITEM_NOT_FOUND); - } - break; - - case MALI_PMM_STATUS_OS_WAITING: - switch( event->id ) - { - case MALI_PMM_EVENT_OS_POWER_UP: - cores_subset = pmm_cores_to_power_up( pmm, cores ); - if( cores_subset != 0 ) - { - /* There are some cores that need powering up */ - if( !pmm_invoke_power_up( pmm ) ) - { - /* Need to wait until power up complete */ - pmm->status = MALI_PMM_STATUS_OS_POWER_UP; - /* Save the OS data to respond later */ - pmm_save_os_event_data( pmm, event->data ); - /* Exit this case - as we have to wait */ - break; - } - } - pmm->status = MALI_PMM_STATUS_IDLE; - /* All cores now up - respond to OS power up event */ - _mali_osk_pmm_power_up_done( event->data ); - break; - - default: - /* All other messages are ignored in this state */ - break; - } - break; - - default: - /* Unexpected state */ - MALI_ERROR(_MALI_OSK_ERR_FAULT); - } - - /* Set in-activity latency timer - if required */ - job_control_timeout_setup( pmm, &data_job_control->latency ); - - /* Update the PMM state */ - pmm_update_system_state( pmm ); -#if MALI_STATE_TRACKING - pmm->mali_new_event_status = event->id; -#endif /* MALI_STATE_TRACKING */ - - MALIPMM_DEBUG_PRINT( ("PMM: Job control policy process end - status=%d and event=%d\n", pmm->status,event->id) ); - - MALI_SUCCESS; -} - -void pmm_policy_check_job_control() -{ - MALI_DEBUG_ASSERT_POINTER(data_job_control); - - /* Latency timer must have expired raise the event */ - pmm_policy_timer_raise_event(&data_job_control->latency); -} - - -#endif /* USING_MALI_PMM */ |