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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2013-2018 Linaro Limited
* Copyright (c) 2020-2023 Nokia
*/
#include <odp/api/time_types.h>
#include <odp/api/abi/time_cpu.h>
#include <odp/api/abi/time_cpu_inlines.h>
#include <odp_debug_internal.h>
#include <odp_init_internal.h>
#include <inttypes.h>
#include <stdint.h>
#include <string.h>
#define YEAR_IN_SEC (365 * 24 * 3600)
#include <odp/visibility_begin.h>
_odp_time_global_t _odp_time_glob;
#include <odp/visibility_end.h>
int _odp_time_init_global(void)
{
uint64_t count, diff, years;
odp_time_t time;
_odp_time_global_t *global = &_odp_time_glob;
memset(global, 0, sizeof(_odp_time_global_t));
if (!_odp_time_cpu_global_freq_is_const())
return -1;
global->freq_hz = _odp_time_cpu_global_freq();
if (global->freq_hz == 0)
return -1;
_ODP_PRINT("HW time counter freq: %" PRIu64 " hz\n\n", global->freq_hz);
count = _odp_time_cpu_global();
time.count = count;
global->start_time = count;
global->start_time_ns = _odp_time_to_ns(time);
/* Make sure that counters will not wrap */
diff = UINT64_MAX - count;
years = (diff / global->freq_hz) / YEAR_IN_SEC;
if (years < 10) {
_ODP_ERR("Time counter would wrap in 10 years: %" PRIu64 "\n", count);
return -1;
}
diff = UINT64_MAX - global->start_time_ns;
years = (diff / ODP_TIME_SEC_IN_NS) / YEAR_IN_SEC;
if (years < 10) {
_ODP_ERR("Time in nsec would wrap in 10 years: %" PRIu64 "\n",
global->start_time_ns);
return -1;
}
return 0;
}
int _odp_time_term_global(void)
{
return 0;
}
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