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Merge pull request #48 from vnarapar/main
Added Kernel Level testcases
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‎Runner/suites/Kernel/FunctionalArea/DCVS/Freq_Scaling/README.md‎

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# DCVS Frequency Scaling Validation Test
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This test validates the DCVS support and runtime status on Qualcomm platforms with Yocto builds.
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## Overview
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The test script performs these functional checks:
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1. **Kernel Configuration**:
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- Validates presence of `CONFIG_CPU_FREQ`, `CONFIG_CPU_FREQ_GOV_PERFORMANCE` and `CONFIG_CPU_FREQ_GOV_SCHEDUTIL*` entries in `/proc/config.gz`.
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2. **Runtime Verification**:
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- Checks `/sys/devices/system/cpu/cpu0/cpufreq` before and after a load is applied.
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## How to Run
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```sh
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source init_env
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cd suites/Kernel/FunctionalArea/DCVS/Freq_Scaling
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./run.sh
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```
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## Prerequisites
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- `dmesg`, `grep`, `zgrep`, `lsmod` must be available
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- Root access may be required for complete validation
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## Result Format
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Test result will be saved in `Freq_Scaling.res` as:
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- `DCVS scaling appears functional. Test Passed` – if all validations pass
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- `DCVS did not scale as expected. Test Failed` – if any check fails
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## License
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SPDX-License-Identifier: BSD-3-Clause-Clear
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(C) Qualcomm Technologies, Inc. and/or its subsidiaries.

‎Runner/suites/Kernel/FunctionalArea/DCVS/Freq_Scaling/run.sh‎

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#!/bin/sh
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# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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# Robustly find and source init_env
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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INIT_ENV=""
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SEARCH="$SCRIPT_DIR"
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while [ "$SEARCH" != "/" ]; do
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if [ -f "$SEARCH/init_env" ]; then
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INIT_ENV="$SEARCH/init_env"
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break
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fi
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SEARCH=$(dirname "$SEARCH")
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done
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if [ -z "$INIT_ENV" ]; then
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echo "[ERROR] Could not find init_env (starting at $SCRIPT_DIR)" >&2
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exit 1
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fi
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# Only source if not already loaded (idempotent)
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if [ -z "$__INIT_ENV_LOADED" ]; then
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# shellcheck disable=SC1090
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. "$INIT_ENV"
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fi
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# Always source functestlib.sh, using $TOOLS exported by init_env
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# shellcheck disable=SC1090,SC1091
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. "$TOOLS/functestlib.sh"
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TESTNAME="Freq_Scaling"
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test_path=$(find_test_case_by_name "$TESTNAME")
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cd "$test_path" || exit 1
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# shellcheck disable=SC2034
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res_file="./$TESTNAME.res"
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log_info "-------------------------------------------------"
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log_info "----------- Starting $TESTNAME Test -------------"
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check_dependencies zcat grep
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CONFIGS="CONFIG_CPU_FREQ CONFIG_CPU_FREQ_GOV_SCHEDUTIL CONFIG_CPU_FREQ_GOV_PERFORMANCE"
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check_kernel_config "$CONFIGS" || {
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log_fail "Kernel config validation failed."
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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}
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CPUFREQ_BASE_PATH="/sys/devices/system/cpu"
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i=0
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miss=0
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for cpu_dir in /sys/devices/system/cpu/cpu[0-8]*; do
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CPUFREQ_PATH="$cpu_dir/cpufreq"
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if [ -d "$CPUFREQ_PATH" ]; then
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cpu_name="${cpu_dir##*/}"
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log_pass "$cpu_name has cpufreq interface"
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else
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miss=1
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fi
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done
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if [ "$miss" -eq 1 ]; then
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echo "CPUFreq interface not found. Test Failed"
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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fi
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log_info "Reading scaling governor..."
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GOVERNOR=$(cat $CPUFREQ_PATH/scaling_governor)
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log_info "Current governor: $GOVERNOR"
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log_info "Reading min/max frequencies"
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MIN_FREQ=$(cat $CPUFREQ_PATH/cpuinfo_min_freq)
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MAX_FREQ=$(cat $CPUFREQ_PATH/cpuinfo_max_freq)
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log_info "CPU frequency range: $MIN_FREQ - $MAX_FREQ"
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log_info "Triggering frequency update via governor"
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dd if=/dev/urandom of=/dev/null bs=1M count=1000 &
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LOAD_PID=$!
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sleep 2
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CURRENT_FREQ=$(cat $CPUFREQ_PATH/scaling_cur_freq)
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log_info "Observed frequency under load: $CURRENT_FREQ"
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kill $LOAD_PID
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if [ "$CURRENT_FREQ" -gt "$MIN_FREQ" ]; then
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log_pass "DCVS scaling appears functional. Test Passed"
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echo "$TESTNAME PASS" > "$res_file"
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else
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log_fail "DCVS did not scale as expected. Test Failed"
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echo "$TESTNAME FAIL" > "$res_file"
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fi
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log_info "----------- Completed $TESTNAME Test ------------"

‎Runner/suites/Kernel/FunctionalArea/Scheduler/CPU_affinity/README.md‎

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# Scheduler CPU Affinity validation Test
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This test validates the Scheduler support and runtime status on Qualcomm platforms with Yocto builds.
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## Overview
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The test script performs these functional checks:
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1. **Kernel Configuration**:
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- Validates presence of `CONFIG_SCHED_DEBUG`, `CONFIG_CGROUP_SCHED` and `CONFIG_SMP*` entries in `/proc/config.gz`.
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2. **Runtime Verification**:
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- Checks cpu affinity by creating a CPU-bound background task
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## How to Run
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```sh
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source init_env
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cd suites/Kernel/FunctionalArea/Scheduler/CPU_affinity
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./run.sh
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```
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## Prerequisites
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- `taskset`, `grep`, `zgrep`, `top`, `chrt` must be available
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- Root access may be required for complete validation
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## Result Format
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Test result will be saved in `CPU_affinity.res` as:
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- `Default scheduling policy detected. Test passed` – if all validations pass
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- `Unexpected scheduling policy. Test Failed` – if any check fails
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## License
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SPDX-License-Identifier: BSD-3-Clause-Clear
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(C) Qualcomm Technologies, Inc. and/or its subsidiaries.

‎Runner/suites/Kernel/FunctionalArea/Scheduler/CPU_affinity/run.sh‎

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#!/bin/sh
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# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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# Robustly find and source init_env
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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INIT_ENV=""
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SEARCH="$SCRIPT_DIR"
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while [ "$SEARCH" != "/" ]; do
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if [ -f "$SEARCH/init_env" ]; then
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INIT_ENV="$SEARCH/init_env"
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break
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fi
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SEARCH=$(dirname "$SEARCH")
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done
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if [ -z "$INIT_ENV" ]; then
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echo "[ERROR] Could not find init_env (starting at $SCRIPT_DIR)" >&2
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exit 1
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fi
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# Only source if not already loaded (idempotent)
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if [ -z "$__INIT_ENV_LOADED" ]; then
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# shellcheck disable=SC1090
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. "$INIT_ENV"
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fi
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# Always source functestlib.sh, using $TOOLS exported by init_env
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# shellcheck disable=SC1090,SC1091
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. "$TOOLS/functestlib.sh"
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TESTNAME="CPU_affinity"
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test_path=$(find_test_case_by_name "$TESTNAME")
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cd "$test_path" || exit 1
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# shellcheck disable=SC2034
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res_file="./$TESTNAME.res"
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log_info "----------------------------------------------------"
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log_info "-------- Starting $TESTNAME Functional Test --------"
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check_dependencies taskset top chrt zcat grep
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REQUIRED_CONFIGS="CONFIG_SCHED_DEBUG CONFIG_CGROUP_SCHED CONFIG_SMP"
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for config in $REQUIRED_CONFIGS; do
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if check_kernel_config "$config"; then
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log_pass "$config is enabled"
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echo "$TESTNAME PASS" > "$res_file"
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else
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log_fail "$config is missing"
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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fi
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done
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log_info "Creating a CPU-bound background task..."
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cpu_task() {
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while true; do :; done
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}
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cpu_task &
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TASK_PID=$!
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sleep 2
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log_info "Checking CPU affinity of task $TASK_PID..."
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CPU_AFFINITY=$(taskset -p $TASK_PID | awk -F: '{print $2}' | xargs)
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log_info "CPU affinity: $CPU_AFFINITY"
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log_info "Setting affinity to CPU 0"
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taskset -pc 0 $TASK_PID > /dev/null
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sleep 1
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NEW_AFFINITY=$(taskset -p $TASK_PID | awk -F: '{print $2}' | xargs)
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if [ "$NEW_AFFINITY" = "1" ]; then
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log_pass "Successfully set CPU affinity"
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echo "$TESTNAME PASS" > "$res_file"
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else
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log_fail "Failed to set CPU affinity"
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echo "$TESTNAME FAIL" > "$res_file"
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fi
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log_info "Checking scheduling policy of task..."
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SCHED_POLICY=$(chrt -p $TASK_PID | grep "scheduling policy" | awk -F: '{print $2}' | xargs)
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log_info "Scheduling Policy: $SCHED_POLICY"
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if echo "$SCHED_POLICY" | grep -q "SCHED_OTHER"; then
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log_pass "Default scheduling policy detected. Test passed"
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echo "$TESTNAME PASS" > "$res_file"
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else
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log_fail "Unexpected scheduling policy. Test Failed"
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echo "$TESTNAME FAIL" > "$res_file"
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fi
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kill $TASK_PID
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echo "$TESTNAME PASS" > $test_path/$TESTNAME.res
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log_info "-------- Completed $TESTNAME Functional Test --------"

‎Runner/suites/Kernel/FunctionalArea/baseport/iommu/README.md‎

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# IOMMU Validation Test
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This test validates the IOMMU (Input-Output Memory Management Unit) support and runtime status on Qualcomm platforms with Yocto builds.
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## Overview
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The test script performs these functional checks:
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1. **Kernel Configuration**:
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- Validates presence of `CONFIG_IOMMU_SUPPORT` and `CONFIG_ARM_SMMU*` entries in `/proc/config.gz`.
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2. **Driver Loading**:
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- Confirms SMMU/IOMMU-related drivers are loaded via `/proc/modules`.
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3. **Device Tree Nodes**:
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- Verifies IOMMU/SMMU-related nodes in `/proc/device-tree`.
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4. **Runtime Verification**:
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- Checks `dmesg` for any runtime IOMMU initialization or fault logs.
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## How to Run
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```sh
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source init_env
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cd suites/Kernel/FunctionalArea/IOMMU_Validation
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./run.sh
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```
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## Prerequisites
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- `dmesg`, `grep`, `zgrep`, `lsmod` must be available
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- Root access may be required for complete validation
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## Result Format
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Test result will be saved in `IOMMU.res` as:
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- `IOMMU PASS` – if all validations pass
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- `IOMMU FAIL` – if any check fails
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## License
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SPDX-License-Identifier: BSD-3-Clause-Clear
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(C) Qualcomm Technologies, Inc. and/or its subsidiaries.

‎Runner/suites/Kernel/FunctionalArea/baseport/iommu/run.sh‎

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log_info "-------------------Starting $TESTNAME Testcase----------------------------"
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log_info "=== Test Initialization ==="
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# Run the command and capture the output
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OUTPUT=$(dmesg | grep iommu)
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check_runtime_behavior() {
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if dmesg | grep -i -q "msm_iommu.*enabled"; then
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log_info "Runtime logs show Qualcomm MSM IOMMU is active"
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elif dmesg | grep -i -q "iommu.*enabled"; then
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log_info "Runtime logs show IOMMU is active"
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else
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log_fail "No runtime indication of IOMMU being active"
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return 1
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fi
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return 0
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}
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pass=true
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CONFIGS="CONFIG_IOMMU_SUPPORT CONFIG_QCOM_IOMMU CONFIG_ARM_SMMU"
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check_kernel_config "$CONFIGS" || {
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log_fail "Kernel config validation failed."
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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}
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LOADED_MODULES="msm_iommu arm_smmu"
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check_driver_loaded "$LOADED_MODULES" || {
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log_fail "Failed to load required driver modules"
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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}
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DT_NODES="/proc/device-tree/soc@0/iommu@15000000 /proc/device-tree/soc/iommu@15000000"
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check_dt_nodes "$DT_NODES" || {
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log_fail "Device tree validation failed."
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echo "$TESTNAME FAIL" > "$res_file"
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exit 1
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}
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check_runtime_behavior || pass=false
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# Check if the output is null
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if [ -z "$OUTPUT" ]; then
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if $pass; then
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log_pass "$TESTNAME : Test Passed"
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echo "$TESTNAME PASS" > "$res_file"
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else
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log_fail "$TESTNAME : Test Failed"
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echo "$TESTNAME FAIL" > "$res_file"
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fi
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log_info "-------------------Completed $TESTNAME Testcase----------------------------"

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