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| author |   Nathan Fontenot <nathan.fontenot@amd.com> | 2021-01-25 11:34:49 -0600 |
|---|---|---|
| committer |   Shuah Khan <skhan@linuxfoundation.org> | 2021-01-26 09:40:15 -0700 |
| commit | a0255a76bf3a78d322adfe4eb4e73eb83998f61a (patch) | |
| tree | b721317391188d6476567bb9f8b7dc85e7fe1afb /samples/git:/ssh:/git@git.zx2c4.com | |
| parent | cpupower: Correct macro name for CPB caps flag (diff) | |
| download | linux-dev-a0255a76bf3a78d322adfe4eb4e73eb83998f61a.tar.xz linux-dev-a0255a76bf3a78d322adfe4eb4e73eb83998f61a.zip | |
cpupower: Add CPUPOWER_CAP_AMD_HW_PSTATE cpuid caps flag
Add a check in get_cpu_info() for the ability to read frequencies
from hardware and set the CPUPOWER_CAP_AMD_HW_PSTATE cpuid flag.
The cpuid flag is set when CPUID_80000007_EDX[7] is set,
which is all families >= 10h. The check excludes family 14h
because HW pstate reporting was not implemented on family 14h.
This is intended to reduce family checks in the main code paths.
Signed-off-by: Nathan Fontenot <nathan.fontenot@amd.com>
Reviewed-by: Robert Richter <rrichter@amd.com>
Reviewed-by: skhan@linuxfoundation.org
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'samples/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions