From: Huang Rui Date: Tue, 22 Feb 2022 15:34:19 +0000 (+0800) Subject: cpupower: Initial AMD P-State capability X-Git-Tag: howlett/maple/20220722_2~1005^2^2~5^2~7 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=083792f368b8ceea7ae035b6641e9cef3aceb366;p=users%2Fjedix%2Flinux-maple.git cpupower: Initial AMD P-State capability If kernel starts the AMD P-State module, the cpupower will initial the capability flag as CPUPOWER_CAP_AMD_PSTATE. And once AMD P-State capability is set, it won't need to set legacy ACPI relative capabilities anymore. Reviewed-by: Shuah Khan Signed-off-by: Huang Rui Signed-off-by: Shuah Khan --- diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c index 72eb435931803..eae91f11d1870 100644 --- a/tools/power/cpupower/utils/helpers/cpuid.c +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -149,6 +149,19 @@ out: if (ext_cpuid_level >= 0x80000008 && cpuid_ebx(0x80000008) & (1 << 4)) cpu_info->caps |= CPUPOWER_CAP_AMD_RDPRU; + + if (cpupower_amd_pstate_enabled()) { + cpu_info->caps |= CPUPOWER_CAP_AMD_PSTATE; + + /* + * If AMD P-State is enabled, the firmware will treat + * AMD P-State function as high priority. + */ + cpu_info->caps &= ~CPUPOWER_CAP_AMD_CPB; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_CPB_MSR; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_HW_PSTATE; + cpu_info->caps &= ~CPUPOWER_CAP_AMD_PSTATEDEF; + } } if (cpu_info->vendor == X86_VENDOR_INTEL) {