/*
***************************************************************
@Function :mali_set_freq
@Description:Set the frequency of gpu related clocks with mali dvfs function
@Input :Frequency value
@Return :Zero or error code
***************************************************************
*/
static int mali_set_freq(int freq /* MHz */)
{
int err;
mali_dev_pause();
err = set_freq(freq);
mali_dev_resume();
return err;
}
static ssize_t power_events_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)
{
memset(pwr_buf,0,POWER_BUFFER_SIZE);
virtual_power_status_register = 0;
if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_SUSPEND],strlen(mali_power_events[_MALI_DEVICE_SUSPEND])))
{
mali_pm_os_suspend();
/* @@@@ assuming currently suspend is successful later on to tune as per previous*/
virtual_power_status_register =1;
}
else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_RESUME],strlen(mali_power_events[_MALI_DEVICE_RESUME])))
{
mali_pm_os_resume();
/* @@@@ assuming currently resume is successful later on to tune as per previous */
virtual_power_status_register = 1;
}
else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_DVFS_PAUSE],strlen(mali_power_events[_MALI_DEVICE_DVFS_PAUSE])))
{
mali_bool power_on;
mali_dev_pause(&power_on);
if (!power_on)
{
virtual_power_status_register = 2;
mali_dev_resume();
}
else
{
/* @@@@ assuming currently resume is successful later on to tune as per previous */
virtual_power_status_register =1;
}
}
else if (!strncmp(ubuf,mali_power_events[_MALI_DEVICE_DVFS_RESUME],strlen(mali_power_events[_MALI_DEVICE_DVFS_RESUME])))
{
mali_dev_resume();
/* @@@@ assuming currently resume is successful later on to tune as per previous */
virtual_power_status_register = 1;
}
*ppos += cnt;
sprintf(pwr_buf, "%d",virtual_power_status_register);
return cnt;
}
static ssize_t power_power_events_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos)
{
if (!strncmp(ubuf, mali_power_events[_MALI_DEVICE_SUSPEND], strlen(mali_power_events[_MALI_DEVICE_SUSPEND]) - 1)) {
mali_pm_os_suspend(MALI_TRUE);
} else if (!strncmp(ubuf, mali_power_events[_MALI_DEVICE_RESUME], strlen(mali_power_events[_MALI_DEVICE_RESUME]) - 1)) {
mali_pm_os_resume();
} else if (!strncmp(ubuf, mali_power_events[_MALI_DEVICE_DVFS_PAUSE], strlen(mali_power_events[_MALI_DEVICE_DVFS_PAUSE]) - 1)) {
mali_dev_pause();
} else if (!strncmp(ubuf, mali_power_events[_MALI_DEVICE_DVFS_RESUME], strlen(mali_power_events[_MALI_DEVICE_DVFS_RESUME]) - 1)) {
mali_dev_resume();
}
*ppos += cnt;
return cnt;
}
static void do_scaling(struct work_struct *work)
{
mali_dvfs_threshold_table * pdvfs = pmali_plat->dvfs_table;
int err = mali_perf_set_num_pp_cores(num_cores_enabled);
MALI_DEBUG_ASSERT(0 == err);
MALI_IGNORE(err);
if (pdvfs[currentStep].freq_index != pdvfs[lastStep].freq_index) {
mali_dev_pause();
mali_clock_set(pdvfs[currentStep].freq_index);
mali_dev_resume();
lastStep = currentStep;
}
#ifdef CONFIG_MALI400_PROFILING
_mali_osk_profiling_add_event(MALI_PROFILING_EVENT_TYPE_SINGLE |
MALI_PROFILING_EVENT_CHANNEL_GPU |
MALI_PROFILING_EVENT_REASON_SINGLE_GPU_FREQ_VOLT_CHANGE,
get_current_frequency(),
0, 0, 0, 0);
#endif
}
/** This function is called when user wants to suspend the mali GPU device in order
* to simulate the power up and power down events.
*/
static ssize_t store_file(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
int err = 0;
#if MALI_POWER_MGMT_TEST_SUITE
int test_flag_dvfs = 0;
pwr_mgmt_status_reg = 0;
mali_is_pmu_present();
#endif
if (!strncmp(buf,mali_states[_MALI_DEVICE_SUSPEND],strlen(mali_states[_MALI_DEVICE_SUSPEND])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI suspend Power operation is scheduled\n" ));
err = mali_pm_suspend(NULL);
}
#if MALI_POWER_MGMT_TEST_SUITE
else if (!strncmp(buf,mali_pmm_recording_events[_MALI_DEVICE_PMM_REGISTERED_CORES],strlen(mali_pmm_recording_events[_MALI_DEVICE_PMM_REGISTERED_CORES])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI Device get number of registerd cores\n" ));
pwr_mgmt_status_reg = _mali_pmm_cores_list();
return count;
}
else if (!strncmp(buf,mali_pmm_recording_events[_MALI_DEVICE_PMM_TIMEOUT_EVENT],strlen(mali_pmm_recording_events[_MALI_DEVICE_PMM_TIMEOUT_EVENT])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI timeout event recording is enabled\n" ));
mali_timeout_event_recording_on = 1;
}
else if (!strncmp(buf,mali_pmm_recording_events[_MALI_DEVICE_PMM_JOB_SCHEDULING_EVENTS],strlen(mali_pmm_recording_events[_MALI_DEVICE_PMM_JOB_SCHEDULING_EVENTS])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI Job scheduling events recording is enabled\n" ));
mali_job_scheduling_events_recording_on = 1;
}
#endif /* MALI_POWER_MGMT_TEST_SUITE */
else if (!strncmp(buf,mali_states[_MALI_DEVICE_RESUME],strlen(mali_states[_MALI_DEVICE_RESUME])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI Resume Power operation is scheduled\n" ));
err = mali_pm_resume(NULL);
}
else if (!strncmp(buf,mali_states[_MALI_DVFS_PAUSE_EVENT],strlen(mali_states[_MALI_DVFS_PAUSE_EVENT])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI DVFS Pause Power operation is scheduled\n" ));
err = mali_dev_pause();
#if MALI_POWER_MGMT_TEST_SUITE
test_flag_dvfs = 1;
#endif /* MALI_POWER_MGMT_TEST_SUITE */
}
else if (!strncmp(buf,mali_states[_MALI_DVFS_RESUME_EVENT],strlen(mali_states[_MALI_DVFS_RESUME_EVENT])))
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: MALI DVFS Resume Power operation is scheduled\n" ));
err = mali_dev_resume();
#if MALI_POWER_MGMT_TEST_SUITE
test_flag_dvfs = 1;
#endif /* MALI_POWER_MGMT_TEST_SUITE */
}
else
{
MALI_DEBUG_PRINT(4, ("PMMDEBUG: Invalid Power Mode Operation selected\n" ));
}
#if MALI_POWER_MGMT_TEST_SUITE
if (test_flag_dvfs == 1)
{
if (err)
{
pwr_mgmt_status_reg = 2;
}
else
{
pwr_mgmt_status_reg = 1;
}
}
else
{
if (1 == is_mali_pmu_present)
{
pwr_mgmt_status_reg = pmu_get_power_up_down_info();
}
}
#endif /* MALI_POWER_MGMT_TEST_SUITE */
return count;
}
