93 lines
3.4 KiB
Bash
93 lines
3.4 KiB
Bash
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#!/bin/bash
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# Copyright (c) 2013, The Linux Foundation. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of The Linux Foundation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# Script to interpret results of iommu tracepoints
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# Note: Directory this script is run in must contain Python
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# script that returns statistics
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DEFAULT_TEST_CASE="sh /data/kernel-tests/memory_prof.sh -e"
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usage()
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{
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echo "Usage: $(basename $0) [test_case]"
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echo
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echo "test_case is a command to be run with \"adb shell\""
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echo "and defaults to \"$DEFAULT_TEST_CASE\"."
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}
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[[ "$1" = "-h" || "$1" = "--help" ]] && { usage; exit 1; }
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DEBUGFS_ROOT=${DEBUGFS_ROOT:-/sys/kernel/debug}
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TRACING_ROOT=${TRACING_ROOT:-${DEBUGFS_ROOT}/tracing}
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EVENTS_ROOT=${EVENTS_ROOT:-${TRACING_ROOT}/events/kmem}
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# Mount Debug Filsystem
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adb wait-for-device
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adb root
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adb wait-for-device
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adb shell "mkdir -p ${DEBUGFS_ROOT}"
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adb shell "mount -t debugfs nodev ${DEBUGFS_ROOT}"
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echo "INFO: Mounted Debug Filesystem"
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# Enable Tracing
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adb shell "echo function > ${TRACING_ROOT}/current_tracer"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_iommu_end/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_iommu_start/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_iommu_fail/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_sys_end/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_sys_start/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/alloc_pages_sys_fail/enable"
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adb shell "echo 1 > ${EVENTS_ROOT}/iommu_map_range/enable"
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echo "INFO: Enabled Ion/Iommu Tracing"
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# Execute Some Test
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if [ -z "$1" ]; then
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KERNELTEST=$DEFAULT_TEST_CASE
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else
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KERNELTEST=$1
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fi
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echo "INFO: Running $KERNELTEST"
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adb shell "$KERNELTEST"
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# Pull
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echo "INFO: Pulling Trace File into Current Directory"
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rm -vf trace
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adb pull ${TRACING_ROOT}/trace
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# Disable Tracing
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adb shell "echo 0 > ${EVENTS_ROOT}/enable"
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adb shell "echo nop > ${TRACING_ROOT}/current_tracer"
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echo "INFO: Disabled Ion/Iommu Tracing"
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# Invoke Python Script
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echo "INFO: Gathering Trace Statistics..."
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./stats.py
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rm -vf trace
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echo "Done"
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