drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_pmu_power_up_down.c

   1 /**
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2010, 2012-2013 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10
  11 /**
  12  * @file mali_pmu_power_up_down.c
  13  */
  14
  15 #include <linux/version.h>
  16 #include <linux/sched.h>
  17 #include <linux/module.h>
  18 #include "mali_osk.h"
  19 #include "mali_kernel_common.h"
  20 #include "mali_pmu.h"
  21 #include "mali_pp_scheduler.h"
  22 #include "linux/mali/mali_utgard.h"
  23
  24 /* Mali PMU power up/down APIs */
  25
  26 int mali_pmu_powerup(void)
  27 {
  28         struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core();
  29
  30         MALI_DEBUG_PRINT(5, ("Mali PMU: Power up\n"));
  31
  32         MALI_DEBUG_ASSERT_POINTER(pmu);
  33         if (NULL == pmu) {
  34                 return -ENXIO;
  35         }
  36
  37         if (_MALI_OSK_ERR_OK != mali_pmu_power_up_all(pmu)) {
  38                 return -EFAULT;
  39         }
  40
  41         return 0;
  42 }
  43
  44 EXPORT_SYMBOL(mali_pmu_powerup);
  45
  46 int mali_pmu_powerdown(void)
  47 {
  48         struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core();
  49
  50         MALI_DEBUG_PRINT(5, ("Mali PMU: Power down\n"));
  51
  52         MALI_DEBUG_ASSERT_POINTER(pmu);
  53         if (NULL == pmu) {
  54                 return -ENXIO;
  55         }
  56
  57         if (_MALI_OSK_ERR_OK != mali_pmu_power_down_all(pmu)) {
  58                 return -EFAULT;
  59         }
  60
  61         return 0;
  62 }
  63
  64 EXPORT_SYMBOL(mali_pmu_powerdown);
  65
  66 int mali_perf_set_num_pp_cores(unsigned int num_cores)
  67 {
  68         return mali_pp_scheduler_set_perf_level(num_cores, MALI_FALSE);
  69 }
  70
  71 EXPORT_SYMBOL(mali_perf_set_num_pp_cores);