drivers/media/video/samsung/mali_r2p3/common/pmm/mali_pmm_policy_alwayson.c

   1 /*
   2  * Copyright (C) 2010 ARM Limited. All rights reserved.
   3  *
   4  * This program is free software and is provided to you under the terms of the GNU General Public License version 2
   5  * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
   6  *
   7  * A copy of the licence is included with the program, and can also be obtained from Free Software
   8  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   9  */
  10
  11 /**
  12  * @file mali_pmm_policy_alwayson.c
  13  * Implementation of the power management module policy - always on
  14  */
  15
  16 #if USING_MALI_PMM
  17
  18 #include "mali_ukk.h"
  19 #include "mali_kernel_common.h"
  20
  21 #include "mali_pmm.h"
  22 #include "mali_pmm_system.h"
  23 #include "mali_pmm_state.h"
  24 #include "mali_pmm_policy_alwayson.h"
  25
  26 _mali_osk_errcode_t pmm_policy_init_always_on(void)
  27 {
  28         /* Nothing to set up */
  29         MALI_SUCCESS;
  30 }
  31
  32 void pmm_policy_term_always_on(void)
  33 {
  34         /* Nothing to tear down */
  35 }
  36
  37 _mali_osk_errcode_t pmm_policy_process_always_on( _mali_pmm_internal_state_t *pmm, mali_pmm_message_t *event )
  38 {
  39         MALI_DEBUG_ASSERT_POINTER(pmm);
  40         MALI_DEBUG_ASSERT_POINTER(event);
  41
  42         switch( event->id )
  43         {
  44                 case MALI_PMM_EVENT_OS_POWER_DOWN:
  45                         /* We aren't going to do anything, but signal so we don't block the OS
  46                          * NOTE: This may adversely affect any jobs Mali is currently running
  47                          */
  48                         _mali_osk_pmm_power_down_done( event->data );
  49                 break;
  50
  51                 case MALI_PMM_EVENT_INTERNAL_POWER_UP_ACK:
  52                 case MALI_PMM_EVENT_INTERNAL_POWER_DOWN_ACK:
  53                         /* Not expected in this policy */
  54                         MALI_DEBUG_ASSERT( MALI_FALSE );
  55                 break;
  56
  57                 case MALI_PMM_EVENT_OS_POWER_UP:
  58                         /* Nothing to do */
  59                         _mali_osk_pmm_power_up_done( event->data );
  60                 break;
  61
  62                 case MALI_PMM_EVENT_JOB_SCHEDULED:
  63                 case MALI_PMM_EVENT_JOB_QUEUED:
  64                 case MALI_PMM_EVENT_JOB_FINISHED:
  65                         /* Nothing to do - we are always on */
  66                 break;
  67
  68                 case MALI_PMM_EVENT_TIMEOUT:
  69                         /* Not expected in this policy */
  70                         MALI_DEBUG_ASSERT( MALI_FALSE );
  71                 break;
  72
  73                 default:
  74                 MALI_ERROR(_MALI_OSK_ERR_ITEM_NOT_FOUND);
  75         }
  76
  77         MALI_SUCCESS;
  78 }
  79
  80 #endif