1 /*
2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <arch.h>
8 #include <debug.h>
9 #include <power_tracer.h>
10
11 #define trace_log(...) INFO("psci: " __VA_ARGS__)
12
trace_power_flow(unsigned long mpidr,unsigned char mode)13 void trace_power_flow(unsigned long mpidr, unsigned char mode)
14 {
15 switch (mode) {
16 case CPU_UP:
17 trace_log("core %ld:%ld ON\n",
18 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
19 (mpidr & MPIDR_CPU_MASK));
20 break;
21 case CPU_DOWN:
22 trace_log("core %ld:%ld OFF\n",
23 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
24 (mpidr & MPIDR_CPU_MASK));
25 break;
26 case CPU_SUSPEND:
27 trace_log("core %ld:%ld SUSPEND\n",
28 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS,
29 (mpidr & MPIDR_CPU_MASK));
30 break;
31 case CLUSTER_UP:
32 trace_log("cluster %ld ON\n",
33 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
34 break;
35 case CLUSTER_DOWN:
36 trace_log("cluster %ld OFF\n",
37 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
38 break;
39 case CLUSTER_SUSPEND:
40 trace_log("cluster %ld SUSPEND\n",
41 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS);
42 break;
43 default:
44 trace_log("unknown power mode\n");
45 break;
46 }
47 }
48