tools/power turbostat: Read extended processor family from CPUID
[ Upstream commit 5aa3d1a20a
]
This fixes the reported family on modern AMD processors (e.g. Ryzen,
which is family 0x17). Previously these processors all showed up as
family 0xf.
See the document
https://support.amd.com/TechDocs/56255_OSRR.pdf
section CPUID_Fn00000001_EAX for how to calculate the family
from the BaseFamily and ExtFamily values.
This matches the code in arch/x86/lib/cpu.c
Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
parent
a73b6c4c26
commit
9339ea7c92
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@ -4029,7 +4029,9 @@ void process_cpuid()
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family = (fms >> 8) & 0xf;
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model = (fms >> 4) & 0xf;
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stepping = fms & 0xf;
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if (family == 6 || family == 0xf)
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if (family == 0xf)
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family += (fms >> 20) & 0xff;
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if (family >= 6)
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model += ((fms >> 16) & 0xf) << 4;
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if (!quiet) {
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