"arch_timer_read_counter"是一个用于读取处理器计时器计数值的函数。该函数的作用是返回一个表示当前计时器计数值的整数。通过读取计时器的计数值,我们可以了解到目前为止经过的时间间隔或计时器自启动以来所经过的时间。 第四部分:如何使用"arch_timer_read_counter"? 要使用"arch_timer_read_counter"函数,我们首...
1. Introduction to arch_timer_read_counter Arch_timer_read_counter is a function in the ARM architecture used to read the value of the Generic Timer counter register. This function provides the current value of the counter, which can be used for various timing and profiling purposes in softwar...
static inline u64 arch_counter_get_cntpct(void) { u64 cnt; isb(); return arch_timer_reg_read_stable(cntpct_el0); cnt = arch_timer_reg_read_stable(cntpct_el0); arch_counter_enforce_ordering(cnt); return cnt; } static inline u64 arch_counter_get_cntvct(void) { u64 cnt; isb();...
u64arch_timer_read_counter(void) { return0; returnarch_counter_get_cntvct(); } u64(*arch_timer_read_counter)(void)=arch_timer_read_zero; staticcycle_tarch_counter_read(structclocksource*cs) { returnarch_timer_read_counter(); returnarch_counter_get_cntvct(); ...
cnthps: Secure physical timer cnthvs: Hypervisor virtual secure timer 除了后3个和安全(EL3)相关,前4个Timer的区别后面会介绍下 这7个timer 的"值"都来源自2个counter cntpct_el0,是Physical Count register; cntp,cnthp 基于cntpct_el0 cntvct_el0,也就是Virtual Count register;cntv,cnthv 基于cntvct_...
}static cycle_t arch_counter_read(struct clocksource *cs){return arch_counter_get_cntpct();}#ifdef ARCH_HAS_READ_CURRENT_TIMERint read_current_timer(unsigned long *timer_val){*timer_val = (unsigned long)arch_counter_get_cntpct();return 0;}...
static void timerx_init_full(TIM_TypeDef* TIMx, uint16_t prescaler, uint16_t period, uint16_t clock_div, uint16_t counter_mode, uint8_t repetition_counter); void timer2_init(void) { TIM_DeInit(TIM2); RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); ...
{timer_parameter_struct timer_initpara;timer_initpara.prescaler=prescaler;timer_initpara.alignedmode=TIMER_COUNTER_EDGE;timer_initpara.counterdirection=counter_mode;timer_initpara.period=period;timer_initpara.clockdivision=clock_div;timer_initpara.repetitioncounter=repetition_counter;timer_init(TIMx,&timer...
Функция KeCancelTimer Функция KeClearEvent Функция KeConvertAuxiliaryCounterToPerformanceCounter Функция KeConvertPerformanceCounterToAuxiliaryCounter Функция KeDelayExecutionThread Функция KeDeregisterBoundCallback Функция KeDeregisterBugCheckCallback...
Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), Fast TLB refill support, etc. This option enable those enhancements which are not probed at run time. If you want a generic kernel to run on all Loongson 3 machines, ...