Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu /arch/common/timing_info_bench.c
Loading...
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/*
 * Copyright (c) 2017 Intel Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#include <kernel.h>

/* #include <kernel_structs.h> */

u64_t  __start_swap_time;
u64_t  __end_swap_time;
u64_t  __start_intr_time;
u64_t  __end_intr_time;
u64_t  __start_tick_time;
u64_t  __end_tick_time;
u64_t  __end_drop_to_usermode_time;

/* location of the time stamps*/
u32_t __read_swap_end_time_value;
u64_t __common_var_swap_end_time;

#if CONFIG_ARM
#include <arch/arm/cortex_m/cmsis.h>
#endif
#ifdef CONFIG_NRF_RTC_TIMER

/* To get current count of timer, first 1 need to be written into
 * Capture Register and Current Count will be copied into corresponding
 * current count register.
 */
#define TIMING_INFO_PRE_READ()        (NRF_TIMER2->TASKS_CAPTURE[0] = 1)
#define TIMING_INFO_OS_GET_TIME()     (NRF_TIMER2->CC[0])
#define TIMING_INFO_GET_TIMER_VALUE() (TIMING_INFO_OS_GET_TIME())
#define SUBTRACT_CLOCK_CYCLES(val)    (val)

#elif CONFIG_X86
#define TIMING_INFO_PRE_READ()
#define TIMING_INFO_OS_GET_TIME()      (z_tsc_read())
#define TIMING_INFO_GET_TIMER_VALUE()  (TIMING_INFO_OS_GET_TIME())
#define SUBTRACT_CLOCK_CYCLES(val)     (val)

#elif CONFIG_ARM
#define TIMING_INFO_PRE_READ()
#define TIMING_INFO_OS_GET_TIME()      (k_cycle_get_32())
#define TIMING_INFO_GET_TIMER_VALUE()  (SysTick->VAL)
#define SUBTRACT_CLOCK_CYCLES(val)     (SysTick->LOAD - (u32_t)val)

#elif CONFIG_ARC
#define TIMING_INFO_PRE_READ()
#define TIMING_INFO_OS_GET_TIME()     (k_cycle_get_32())
#define TIMING_INFO_GET_TIMER_VALUE() (z_arc_v2_aux_reg_read(_ARC_V2_TMR0_COUNT))
#define SUBTRACT_CLOCK_CYCLES(val)    ((u32_t)val)

#elif CONFIG_NIOS2
#include "altera_avalon_timer_regs.h"
#define TIMING_INFO_PRE_READ()         \
	(IOWR_ALTERA_AVALON_TIMER_SNAPL(TIMER_0_BASE, 10))

#define TIMING_INFO_OS_GET_TIME()      (SUBTRACT_CLOCK_CYCLES(\
	((u32_t)IORD_ALTERA_AVALON_TIMER_SNAPH(TIMER_0_BASE) << 16)\
	| ((u32_t)IORD_ALTERA_AVALON_TIMER_SNAPL(TIMER_0_BASE))))

#define TIMING_INFO_GET_TIMER_VALUE()  (\
	((u32_t)IORD_ALTERA_AVALON_TIMER_SNAPH(TIMER_0_BASE) << 16)\
	| ((u32_t)IORD_ALTERA_AVALON_TIMER_SNAPL(TIMER_0_BASE)))

#define SUBTRACT_CLOCK_CYCLES(val)     \
	((IORD_ALTERA_AVALON_TIMER_PERIODH(TIMER_0_BASE)	\
	  << 16 |						\
	  (IORD_ALTERA_AVALON_TIMER_PERIODL(TIMER_0_BASE)))	\
	 - ((u32_t)val))

#else
#define TIMING_INFO_PRE_READ()
#define TIMING_INFO_OS_GET_TIME()      (k_cycle_get_32())
#define TIMING_INFO_GET_TIMER_VALUE()  (k_cycle_get_32())
#define SUBTRACT_CLOCK_CYCLES(val)     ((u32_t)val)
#endif	/* CONFIG_NRF_RTC_TIMER */


void read_timer_start_of_swap(void)
{
	if (__read_swap_end_time_value == 1) {
		TIMING_INFO_PRE_READ();
		__start_swap_time = (u32_t) TIMING_INFO_OS_GET_TIME();
	}
}

void read_timer_end_of_swap(void)
{
	if (__read_swap_end_time_value == 1) {
		TIMING_INFO_PRE_READ();
		__read_swap_end_time_value = 2U;
		__common_var_swap_end_time = (u64_t)TIMING_INFO_OS_GET_TIME();
	}
}

/* ARM processors read current value of time through sysTick timer
 * and nrf soc read it though timer
 */
void read_timer_start_of_isr(void)
{
	TIMING_INFO_PRE_READ();
	__start_intr_time  = (u32_t) TIMING_INFO_GET_TIMER_VALUE();
}

void read_timer_end_of_isr(void)
{
	TIMING_INFO_PRE_READ();
	__end_intr_time  = (u32_t) TIMING_INFO_GET_TIMER_VALUE();
}

void read_timer_start_of_tick_handler(void)
{
	TIMING_INFO_PRE_READ();
	__start_tick_time  = (u32_t)TIMING_INFO_GET_TIMER_VALUE();
}

void read_timer_end_of_tick_handler(void)
{
	TIMING_INFO_PRE_READ();
	 __end_tick_time  = (u32_t) TIMING_INFO_GET_TIMER_VALUE();
}

void read_timer_end_of_userspace_enter(void)
{
	TIMING_INFO_PRE_READ();
	__end_drop_to_usermode_time  = (u32_t) TIMING_INFO_GET_TIMER_VALUE();
}