power_tracer.c

/*
 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arch.h>
#include <debug.h>
#include <power_tracer.h>

#define trace_log(...)  INFO("psci: " __VA_ARGS__)

void trace_power_flow(unsigned long mpidr, unsigned char mode)
{
	switch (mode) {
	case CPU_UP:
		trace_log("core %ld:%ld ON\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
			  (mpidr & MPIDR_CPU_MASK));
		break;
	case CPU_DOWN:
		trace_log("core %ld:%ld OFF\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
			  (mpidr & MPIDR_CPU_MASK));
		break;
	case CPU_SUSPEND:
		trace_log("core %ld:%ld SUSPEND\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
			  (mpidr & MPIDR_CPU_MASK));
		break;
	case CLUSTER_UP:
		trace_log("cluster %ld ON\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
		break;
	case CLUSTER_DOWN:
		trace_log("cluster %ld OFF\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
		break;
	case CLUSTER_SUSPEND:
		trace_log("cluster %ld SUSPEND\n",
			  (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
		break;
	default:
		trace_log("unknown power mode\n");
		break;
	}
}