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| author | Nathan Fontenot <nathan.fontenot@amd.com> | 2021-01-25 20:36:23 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2021-01-26 19:40:45 +0300 |
| commit | 3a3ecfdb605cc8d98988012a4f88c34b4d220c21 (patch) | |
| tree | 68b8c913e8b546b932342d362193ff9b6f2ca032 /tools/power/cpupower/utils/helpers/cpuid.c | |
| parent | d1abc4e996d7784ce4d56749e4b5ca8ff23b1e0f (diff) | |
| download | linux-3a3ecfdb605cc8d98988012a4f88c34b4d220c21.tar.xz | |
cpupower: Add cpuid cap flag for MSR_AMD_HWCR support
Remove the family check for accessing the MSR_AMD_HWCR MSR and replace
it with a cpupower cap flag.
This update also allows for the removal of the local cpupower_cpu_info
variable in cpufreq_has_boost_support() since we no longer need it to
check the family.
Signed-off-by: Nathan Fontenot <nathan.fontenot@amd.com>
Reviewed-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/power/cpupower/utils/helpers/cpuid.c')
| -rw-r--r-- | tools/power/cpupower/utils/helpers/cpuid.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index db2e88ceb67b..72eb43593180 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -129,9 +129,13 @@ out: if (cpu_info->vendor == X86_VENDOR_AMD || cpu_info->vendor == X86_VENDOR_HYGON) { if (ext_cpuid_level >= 0x80000007) { - if (cpuid_edx(0x80000007) & (1 << 9)) + if (cpuid_edx(0x80000007) & (1 << 9)) { cpu_info->caps |= CPUPOWER_CAP_AMD_CPB; + if (cpu_info->family >= 0x17) + cpu_info->caps |= CPUPOWER_CAP_AMD_CPB_MSR; + } + if ((cpuid_edx(0x80000007) & (1 << 7)) && cpu_info->family != 0x14) { /* HW pstate was not implemented in family 0x14 */ |