void mali_control_timer_suspend(mali_bool suspend)
{
mali_utilization_data_lock();
if (timer_running == MALI_TRUE) {
timer_running = MALI_FALSE;
mali_utilization_data_unlock();
if (suspend == MALI_TRUE) {
_mali_osk_timer_del(mali_control_timer);
mali_utilization_reset();
}
} else {
mali_utilization_data_unlock();
}
}
struct mali_gpu_utilization_data *mali_utilization_calculate(u64 *start_time, u64 *time_period, mali_bool *need_add_timer)
{
u64 time_now;
u32 leading_zeroes;
u32 shift_val;
u32 work_normalized_gpu;
u32 work_normalized_gp;
u32 work_normalized_pp;
u32 period_normalized;
u32 utilization_gpu;
u32 utilization_gp;
u32 utilization_pp;
mali_utilization_data_lock();
time_now = _mali_osk_time_get_ns();
*time_period = time_now - *start_time;
if (accumulated_work_time_gpu == 0 && work_start_time_gpu == 0) {
mali_control_timer_pause();
/*
* No work done for this period
* - No need to reschedule timer
* - Report zero usage
*/
last_utilization_gpu = 0;
last_utilization_gp = 0;
last_utilization_pp = 0;
mali_util_data.utilization_gpu = last_utilization_gpu;
mali_util_data.utilization_gp = last_utilization_gp;
mali_util_data.utilization_pp = last_utilization_pp;
mali_utilization_data_unlock();
*need_add_timer = MALI_FALSE;
mali_executor_hint_disable(MALI_EXECUTOR_HINT_GP_BOUND);
MALI_DEBUG_PRINT(4, ("last_utilization_gpu = %d \n", last_utilization_gpu));
MALI_DEBUG_PRINT(4, ("last_utilization_gp = %d \n", last_utilization_gp));
MALI_DEBUG_PRINT(4, ("last_utilization_pp = %d \n", last_utilization_pp));
return &mali_util_data;
}
/* If we are currently busy, update working period up to now */
if (work_start_time_gpu != 0) {
accumulated_work_time_gpu += (time_now - work_start_time_gpu);
work_start_time_gpu = time_now;
/* GP and/or PP will also be busy if the GPU is busy at this point */
if (work_start_time_gp != 0) {
accumulated_work_time_gp += (time_now - work_start_time_gp);
work_start_time_gp = time_now;
}
if (work_start_time_pp != 0) {
accumulated_work_time_pp += (time_now - work_start_time_pp);
work_start_time_pp = time_now;
}
}
/*
* We have two 64-bit values, a dividend and a divisor.
* To avoid dependencies to a 64-bit divider, we shift down the two values
* equally first.
* We shift the dividend up and possibly the divisor down, making the result X in 256.
*/
/* Shift the 64-bit values down so they fit inside a 32-bit integer */
leading_zeroes = _mali_osk_clz((u32)(*time_period >> 32));
shift_val = 32 - leading_zeroes;
work_normalized_gpu = (u32)(accumulated_work_time_gpu >> shift_val);
work_normalized_gp = (u32)(accumulated_work_time_gp >> shift_val);
work_normalized_pp = (u32)(accumulated_work_time_pp >> shift_val);
period_normalized = (u32)(*time_period >> shift_val);
/*
* Now, we should report the usage in parts of 256
* this means we must shift up the dividend or down the divisor by 8
* (we could do a combination, but we just use one for simplicity,
* but the end result should be good enough anyway)
*/
if (period_normalized > 0x00FFFFFF) {
/* The divisor is so big that it is safe to shift it down */
period_normalized >>= 8;
} else {
