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dcn_regdump.sh: improve dcn version detection #1

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dcn_regdump.sh: improve dcn version detection #1

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4 changes: 2 additions & 2 deletions dcn_regdump.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -105,10 +105,10 @@ detect_dcn_version() {
local bdf="${gpu_bdf#*:}" # strip domain prefix (0000:03:00.0 → 03:00.0)
local ver
# Try BDF-scoped match first (e.g. "amdgpu 0000:03:00.0: ... DCN 3.2.1")
ver=$(dmesg 2>/dev/null | grep "$bdf" | grep -oE 'initialized on DCN [0-9]+\.[0-9]+\.[0-9]+' | tail -1 | awk '{print $NF}')
ver=$(dmesg 2>/dev/null | grep "$bdf" | grep -oE 'initialized on DCN [0-9]+\.[0-9]+(\.[0-9]+)?' | tail -1 | sed -e's/^.* \([0-9.]\+\)$/\1/' -e's/^\([0-9]\.[0-9.]\)$/\1.0/')
# Fall back to any matching dmesg line
if [ -z "$ver" ]; then
ver=$(dmesg 2>/dev/null | grep -oE 'initialized on DCN [0-9]+\.[0-9]+\.[0-9]+' | tail -1 | awk '{print $NF}')
ver=$(dmesg 2>/dev/null | grep -oE 'initialized on DCN [0-9]+\.[0-9]+(\.[0-9]+)?' | tail -1 | sed -e's/^.* \([0-9.]\+\)$/\1/' -e's/^\([0-9]\.[0-9.]\)$/\1.0/')
fi
echo "$ver"
}
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