| /* |
| * Copyright (c) 2017 Intel Corporation. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #include <kernel.h> |
| #include <kernel_internal.h> |
| |
| u64_t arch_timing_swap_start; |
| u64_t arch_timing_swap_end; |
| u64_t arch_timing_irq_start; |
| u64_t arch_timing_irq_end; |
| u64_t arch_timing_tick_start; |
| u64_t arch_timing_tick_end; |
| u64_t arch_timing_enter_user_mode_end; |
| |
| /* location of the time stamps*/ |
| u32_t arch_timing_value_swap_end; |
| u64_t arch_timing_value_swap_common; |
| u64_t arch_timing_value_swap_temp; |
| |
| #ifdef CONFIG_NRF_RTC_TIMER |
| #include <nrfx.h> |
| |
| /* 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 |
| #include <arch/arm/cortex_m/cmsis.h> |
| #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 (arch_timing_value_swap_end == 1U) { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_swap_start = (u32_t) TIMING_INFO_OS_GET_TIME(); |
| } |
| } |
| |
| void read_timer_end_of_swap(void) |
| { |
| if (arch_timing_value_swap_end == 1U) { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_value_swap_end = 2U; |
| arch_timing_value_swap_common = |
| (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(); |
| arch_timing_irq_start = (u32_t) TIMING_INFO_GET_TIMER_VALUE(); |
| } |
| |
| void read_timer_end_of_isr(void) |
| { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_irq_end = (u32_t) TIMING_INFO_GET_TIMER_VALUE(); |
| } |
| |
| void read_timer_start_of_tick_handler(void) |
| { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_tick_start = (u32_t)TIMING_INFO_GET_TIMER_VALUE(); |
| } |
| |
| void read_timer_end_of_tick_handler(void) |
| { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_tick_end = (u32_t) TIMING_INFO_GET_TIMER_VALUE(); |
| } |
| |
| void read_timer_end_of_userspace_enter(void) |
| { |
| TIMING_INFO_PRE_READ(); |
| arch_timing_enter_user_mode_end = (u32_t)TIMING_INFO_GET_TIMER_VALUE(); |
| } |