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Diffstat (limited to 'platform/linux-generic/arch/common/odp_time_cpu.c')
-rw-r--r--platform/linux-generic/arch/common/odp_time_cpu.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/platform/linux-generic/arch/common/odp_time_cpu.c b/platform/linux-generic/arch/common/odp_time_cpu.c
new file mode 100644
index 000000000..6416f5575
--- /dev/null
+++ b/platform/linux-generic/arch/common/odp_time_cpu.c
@@ -0,0 +1,72 @@
+/* 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;
+}