1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <arch.h> 32 #include <debug.h> 33 #include <power_tracer.h> 34 35 #define trace_log(...) INFO("psci: " __VA_ARGS__) 36 37 void trace_power_flow(unsigned long mpidr, unsigned char mode) 38 { 39 switch (mode) { 40 case CPU_UP: 41 trace_log("core %ld:%ld ON\n", 42 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS, 43 (mpidr & MPIDR_CPU_MASK)); 44 break; 45 case CPU_DOWN: 46 trace_log("core %ld:%ld OFF\n", 47 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS, 48 (mpidr & MPIDR_CPU_MASK)); 49 break; 50 case CPU_SUSPEND: 51 trace_log("core %ld:%ld SUSPEND\n", 52 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS, 53 (mpidr & MPIDR_CPU_MASK)); 54 break; 55 case CLUSTER_UP: 56 trace_log("cluster %ld ON\n", 57 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS); 58 break; 59 case CLUSTER_DOWN: 60 trace_log("cluster %ld OFF\n", 61 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS); 62 break; 63 case CLUSTER_SUSPEND: 64 trace_log("cluster %ld SUSPEND\n", 65 (mpidr & MPIDR_CLUSTER_MASK) >> MPIDR_AFFINITY_BITS); 66 break; 67 default: 68 trace_log("unknown power mode\n"); 69 break; 70 } 71 } 72