Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) #!/bin/bash
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) # Translate the bits making up a GFP mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) # (c) 2009, Mel Gorman <mel@csn.ul.ie>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) SOURCE=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) GFPMASK=none
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) # Helper function to report failures and exit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) die() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	echo ERROR: $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	if [ "$TMPFILE" != "" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		rm -f $TMPFILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	exit -1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) usage() {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	echo "usage: gfp-translate [-h] [ --source DIRECTORY ] gfpmask"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	exit 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) # Parse command-line arguments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) while [ $# -gt 0 ]; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	case $1 in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		--source)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			SOURCE=$2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 			shift 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 			;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		-h)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 			usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 			;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		--help)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 			usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 			;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		*)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 			GFPMASK=$1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			shift
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			;;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	esac
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) # Guess the kernel source directory if it's not set. Preference is in order of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) # o current directory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) # o /usr/src/linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if [ "$SOURCE" = "" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	if [ -r "/usr/src/linux/Makefile" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		SOURCE=/usr/src/linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	if [ -r "`pwd`/Makefile" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		SOURCE=`pwd`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) # Confirm that a source directory exists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if [ ! -r "$SOURCE/Makefile" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	die "Could not locate kernel source directory or it is invalid"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) # Confirm that a GFP mask has been specified
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if [ "$GFPMASK" = "none" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	usage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) # Extract GFP flags from the kernel source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) TMPFILE=`mktemp -t gfptranslate-XXXXXX` || exit 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) grep -q ___GFP $SOURCE/include/linux/gfp.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if [ $? -eq 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	grep "^#define ___GFP" $SOURCE/include/linux/gfp.h | sed -e 's/u$//' | grep -v GFP_BITS > $TMPFILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	grep "^#define __GFP" $SOURCE/include/linux/gfp.h | sed -e 's/(__force gfp_t)//' | sed -e 's/u)/)/' | grep -v GFP_BITS | sed -e 's/)\//) \//' > $TMPFILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) # Parse the flags
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) IFS="
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) echo Source: $SOURCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) echo Parsing: $GFPMASK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) for LINE in `cat $TMPFILE`; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 	MASK=`echo $LINE | awk '{print $3}'`
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 	if [ $(($GFPMASK&$MASK)) -ne 0 ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 		echo $LINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) rm -f $TMPFILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) exit 0