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| 1 | +#!/bin/sh |
| 2 | + |
| 3 | +# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. |
| 4 | +# SPDX-License-Identifier: BSD-3-Clause |
| 5 | + |
| 6 | +SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)" |
| 7 | +INIT_ENV="" |
| 8 | +SEARCH="$SCRIPT_DIR" |
| 9 | +while [ "$SEARCH" != "/" ]; do |
| 10 | + if [ -f "$SEARCH/init_env" ]; then |
| 11 | + INIT_ENV="$SEARCH/init_env" |
| 12 | + break |
| 13 | + fi |
| 14 | + SEARCH=$(dirname "$SEARCH") |
| 15 | +done |
| 16 | + |
| 17 | +if [ -z "$INIT_ENV" ]; then |
| 18 | + echo "[ERROR] Could not find init_env" >&2 |
| 19 | + exit 1 |
| 20 | +fi |
| 21 | + |
| 22 | +if [ -z "$__INIT_ENV_LOADED" ]; then |
| 23 | + # shellcheck disable=SC1090 |
| 24 | + . "$INIT_ENV" |
| 25 | + __INIT_ENV_LOADED=1 |
| 26 | +fi |
| 27 | + |
| 28 | +# shellcheck disable=SC1090,SC1091 |
| 29 | +. "$TOOLS/functestlib.sh" |
| 30 | +# shellcheck disable=SC1090,SC1091 |
| 31 | +. "$TOOLS/coresight_helper.sh" |
| 32 | + |
| 33 | +TESTNAME="Ftrace-Dump-ETF-Base" |
| 34 | +test_path=$(find_test_case_by_name "$TESTNAME") |
| 35 | +cd "$test_path" || exit 1 |
| 36 | +res_file="./$TESTNAME.res" |
| 37 | +log_info "---------------------------$TESTNAME Starting---------------------------" |
| 38 | + |
| 39 | +cs_base="/sys/bus/coresight/devices" |
| 40 | +debugfs="/sys/kernel/debug" |
| 41 | +[ ! -d "$debugfs/tracing" ] && debugfs="/debug" |
| 42 | + |
| 43 | +fail=0 |
| 44 | + |
| 45 | +if [ ! -d "$cs_base" ]; then |
| 46 | + log_warn "Coresight directory $cs_base not found. Skipping test." |
| 47 | + echo "$TESTNAME SKIP" > "$res_file" |
| 48 | + exit 0 |
| 49 | +fi |
| 50 | + |
| 51 | +trap cleanup EXIT HUP INT TERM |
| 52 | + |
| 53 | +cleanup |
| 54 | + |
| 55 | +stm_path="" |
| 56 | +for stm_node in "$cs_base"/*stm*; do |
| 57 | + if [ -d "$stm_node" ] && [ -f "$stm_node/enable_source" ]; then |
| 58 | + stm_path="$stm_node" |
| 59 | + break |
| 60 | + fi |
| 61 | +done |
| 62 | + |
| 63 | +if [ -z "$stm_path" ]; then |
| 64 | + log_warn "No valid STM source found in $cs_base. Skipping test." |
| 65 | + echo "$TESTNAME SKIP" > "$res_file" |
| 66 | + exit 0 |
| 67 | +fi |
| 68 | + |
| 69 | +sink_path="" |
| 70 | +for sink_node in "$cs_base"/*; do |
| 71 | + [ ! -d "$sink_node" ] && continue |
| 72 | + [ "$(basename "$sink_node")" = "tmc_etf1" ] && continue |
| 73 | + |
| 74 | + if [ -f "$sink_node/enable_sink" ]; then |
| 75 | + sink_path="$sink_node" |
| 76 | + break |
| 77 | + fi |
| 78 | +done |
| 79 | + |
| 80 | +if [ -z "$sink_path" ]; then |
| 81 | + log_warn "No valid Sink found in $cs_base. Skipping test." |
| 82 | + echo "$TESTNAME SKIP" > "$res_file" |
| 83 | + exit 0 |
| 84 | +fi |
| 85 | + |
| 86 | +sink_name="$(basename "$sink_path")" |
| 87 | +stm_name="$(basename "$stm_path")" |
| 88 | + |
| 89 | +if [ ! -c "/dev/$sink_name" ]; then |
| 90 | + log_warn "Character device /dev/$sink_name not found for data read. Skipping test." |
| 91 | + echo "$TESTNAME SKIP" > "$res_file" |
| 92 | + exit 0 |
| 93 | +fi |
| 94 | + |
| 95 | +ftrace_link="/sys/class/stm_source/ftrace/stm_source_link" |
| 96 | +if [ ! -f "$ftrace_link" ]; then |
| 97 | + log_warn "Ftrace STM source link capability missing at $ftrace_link. Skipping test." |
| 98 | + echo "$TESTNAME SKIP" > "$res_file" |
| 99 | + exit 0 |
| 100 | +fi |
| 101 | + |
| 102 | +log_info "Using Source: $stm_name, Sink: $sink_name" |
| 103 | + |
| 104 | +[ -f "$stm_path/hwevent_enable" ] && echo 0 > "$stm_path/hwevent_enable" 2>/dev/null |
| 105 | +[ -f "$stm_path/port_enable" ] && echo 0xffffffff > "$stm_path/port_enable" 2>/dev/null |
| 106 | + |
| 107 | +echo 1 > "$sink_path/enable_sink" 2>/dev/null |
| 108 | + |
| 109 | +ret=$(tr -d ' ' < "$sink_path/enable_sink" 2>/dev/null) |
| 110 | + |
| 111 | +if [ "$ret" = "1" ]; then |
| 112 | + log_info "PASS: sink switch to $sink_name successful" |
| 113 | +else |
| 114 | + log_fail "FAIL: sink switch to $sink_name failed" |
| 115 | + fail=1 |
| 116 | +fi |
| 117 | + |
| 118 | +if [ "$fail" -eq 0 ]; then |
| 119 | + log_info "Linking Ftrace to $stm_name..." |
| 120 | + echo "$stm_name" > "$ftrace_link" 2>/dev/null |
| 121 | + |
| 122 | + [ -f "$debugfs/tracing/tracing_on" ] && echo 1 > "$debugfs/tracing/tracing_on" |
| 123 | + [ -f "$debugfs/tracing/events/sched/sched_switch/enable" ] && echo 1 > "$debugfs/tracing/events/sched/sched_switch/enable" |
| 124 | + |
| 125 | + echo 1 > "$stm_path/enable_source" 2>/dev/null |
| 126 | + |
| 127 | + sleep 20 |
| 128 | + |
| 129 | + cleanup |
| 130 | + |
| 131 | + trace_file="/tmp/${sink_name}_ftrace.bin" |
| 132 | + rm -f "$trace_file" |
| 133 | + |
| 134 | + cat "/dev/$sink_name" > "$trace_file" 2>/dev/null |
| 135 | + |
| 136 | + bin_size=$(wc -c < "$trace_file" 2>/dev/null | tr -d ' ') |
| 137 | + [ -z "$bin_size" ] && bin_size=0 |
| 138 | + |
| 139 | + log_info "Collected bin size: $bin_size bytes" |
| 140 | + |
| 141 | + if [ -f "$trace_file" ] && [ "$bin_size" -ge 65536 ]; then |
| 142 | + log_pass "PASS: $sink_name sink data through Ftrace verified" |
| 143 | + else |
| 144 | + log_fail "FAIL: $sink_name sink data through Ftrace insufficient or missing" |
| 145 | + fail=1 |
| 146 | + fi |
| 147 | +fi |
| 148 | + |
| 149 | +if [ "$fail" -eq 0 ]; then |
| 150 | + echo "$TESTNAME PASS" > "$res_file" |
| 151 | +else |
| 152 | + echo "$TESTNAME FAIL" > "$res_file" |
| 153 | +fi |
| 154 | + |
| 155 | +log_info "---------------------------$TESTNAME Finished---------------------------" |
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