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OFP-SNC-4: offline/online MCDRAM before memory reservation

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Balazs Gerofi
2017-01-12 16:20:59 +09:00
parent e066a8798c
commit 4ef82c2683
1 changed files with 13 additions and 0 deletions
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13
arch/x86/tools/mcreboot-smp-x86.sh.in
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@ -306,6 +306,19 @@ if ! grep ihk_smp_x86 /proc/modules &>/dev/null; then
echo "error: loading ihk-smp-x86" >&2
error_exit "ihk_loaded"
fi
# Free MCDRAM (special case for OFP SNC-4 mode)
if [ "`hostname | grep "c[0-9][0-9][0-9][0-9].ofp"`" != "" ] && [ "`cat /sys/devices/system/node/online`" == "0-7" ]; then
for i in 4 5 6 7; do
find /sys/devices/system/node/node$i/memory*/ -name "online" | while read f; do
echo 0 > $f 2>&1 > /dev/null;
done
find /sys/devices/system/node/node$i/memory*/ -name "online" | while read f; do
echo 1 > $f 2>&1 > /dev/null;
done
done
fi
if ! ${SBINDIR}/ihkconfig 0 reserve mem ${mem}; then
echo "error: reserving memory" >&2
error_exit "ihk_smp_loaded"