| /* Copyright (c) 2022 Intel Corporation |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #include <zephyr/kernel.h> |
| |
| void arch_timing_init(void) |
| { |
| } |
| |
| void arch_timing_start(void) |
| { |
| } |
| |
| void arch_timing_stop(void) |
| { |
| } |
| |
| uint64_t arch_timing_freq_get(void) |
| { |
| return CONFIG_XTENSA_CCOUNT_HZ; |
| } |
| |
| timing_t arch_timing_counter_get(void) |
| { |
| uint32_t ccount; |
| |
| __asm__ volatile ("rsr %0, CCOUNT" : "=r"(ccount)); |
| |
| return ccount; |
| } |
| |
| uint64_t arch_timing_cycles_get(volatile timing_t *const start, |
| volatile timing_t *const end) |
| { |
| int64_t dt = (int64_t) (*end - *start); |
| |
| if (dt < 0) { |
| dt += 0x100000000ULL; |
| } |
| |
| return (uint64_t) dt; |
| } |
| |
| uint64_t arch_timing_cycles_to_ns(uint64_t cycles) |
| { |
| return cycles * 1000000000ULL / CONFIG_XTENSA_CCOUNT_HZ; |
| } |
| |
| uint64_t arch_timing_cycles_to_ns_avg(uint64_t cycles, uint32_t count) |
| { |
| /* Why is this an arch API? This is just math! */ |
| return arch_timing_cycles_to_ns(cycles) / (uint64_t) count; |
| } |
| |
| uint32_t arch_timing_freq_get_mhz(void) |
| { |
| return arch_timing_freq_get() / 1000000ULL; |
| } |