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vpu-vc8000d-kernel/linux/memalloc/memalloc_load.sh
2022-09-13 10:32:13 +08:00

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#!/bin/sh
#############################################################################
#
# The MIT License (MIT)
#
# Copyright (c) 2014 - 2021 VERISILICON
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# DEALINGS IN THE SOFTWARE.
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#############################################################################
#
# The GPL License (GPL)
#
# Copyright (C) 2014 - 2021 VERISILICON
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
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#############################################################################
#
# Note: This software is released under dual MIT and GPL licenses. A
# recipient may use this file under the terms of either the MIT license or
# GPL License. If you wish to use only one license not the other, you can
# indicate your decision by deleting one of the above license notices in your
# version of this file.
#
##############################################################################
#
# Load memalloc
module="memalloc"
device="/dev/memalloc"
mode="666"
echo
if [ ! -e /dev ]
then
mkdir -p /dev/
fi
#insert module
rm_module=`lsmod |grep $module`
if [ ! -z "$rm_module" ]
then
rmmod $module || exit 1
fi
insmod $module.ko $* || exit 1
echo "module $module inserted"
#remove old nod
rm -f $device
#read the major asigned at loading time
major=`cat /proc/devices | grep $module | cut -c1-3`
echo "$module major = $major"
#create dev node
mknod $device c $major 0
echo "node $device created"
#give all 'rw' access
chmod $mode $device
echo "set node access to $mode"
#the end
echo