1 files changed, 48 insertions, 0 deletions
diff --git a/platform/linux-generic/arch/aarch64/odp_cpu_cycles.c b/platform/linux-generic/arch/aarch64/odp_cpu_cycles.c
new file mode 100644
index 000000000..fba263ee4
--- /dev/null
+++ b/platform/linux-generic/arch/aarch64/odp_cpu_cycles.c
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2023 Nokia
+ */
+
+#include <odp/api/cpu.h>
+
+#include <odp/api/abi/cpu_inlines.h>
+#include <odp/api/abi/time_cpu.h>
+
+#include <odp_debug_internal.h>
+#include <odp_init_internal.h>
+
+#include <string.h>
+
+#include <odp/visibility_begin.h>
+
+_odp_cpu_cycles_global_t _odp_cpu_cycles_glob;
+
+#include <odp/visibility_end.h>
+
+int _odp_cpu_cycles_init_global(void)
+{
+	uint64_t cpu_hz, cpu_time_hz;
+
+	memset(&_odp_cpu_cycles_glob, 0, sizeof(_odp_cpu_cycles_global_t));
+
+	cpu_time_hz = _odp_time_cpu_global_freq();
+	if (cpu_time_hz == 0) {
+		_ODP_ERR("CPU time counter frequency not available\n");
+		return -1;
+	}
+
+	cpu_hz = odp_cpu_hz_max_id(0);
+	if (cpu_hz == 0) {
+		_ODP_ERR("CPU frequency not available\n");
+		return -1;
+	}
+
+	_odp_cpu_cycles_glob.res_shifted = (cpu_hz << _ODP_CPU_FREQ_SHIFT) / cpu_time_hz;
+
+	_odp_cpu_cycles_glob.res = cpu_hz > cpu_time_hz ?
+		(_odp_cpu_cycles_glob.res_shifted >> _ODP_CPU_FREQ_SHIFT) : 1;
+
+	_odp_cpu_cycles_glob.max = (UINT64_MAX >> _ODP_CPU_FREQ_SHIFT) -
+				   (UINT64_MAX % _odp_cpu_cycles_glob.res);
+
+	return 0;
+}