diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/amd-pstate.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index d8269994322e..3546d7db614d 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -1071,6 +1071,26 @@ static const struct attribute_group amd_pstate_global_attr_group = { .attrs = pstate_global_attributes, }; +static bool amd_pstate_acpi_pm_profile_server(void) +{ + switch (acpi_gbl_FADT.preferred_profile) { + case PM_ENTERPRISE_SERVER: + case PM_SOHO_SERVER: + case PM_PERFORMANCE_SERVER: + return true; + } + return false; +} + +static bool amd_pstate_acpi_pm_profile_undefined(void) +{ + if (acpi_gbl_FADT.preferred_profile == PM_UNSPECIFIED) + return true; + if (acpi_gbl_FADT.preferred_profile >= NR_PM_PROFILES) + return true; + return false; +} + static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy) { int min_freq, max_freq, nominal_freq, lowest_nonlinear_freq, ret; @@ -1128,10 +1148,14 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy) policy->max = policy->cpuinfo.max_freq; /* - * Set the policy to powersave to provide a valid fallback value in case + * Set the policy to provide a valid fallback value in case * the default cpufreq governor is neither powersave nor performance. */ - policy->policy = CPUFREQ_POLICY_POWERSAVE; + if (amd_pstate_acpi_pm_profile_server() || + amd_pstate_acpi_pm_profile_undefined()) + policy->policy = CPUFREQ_POLICY_PERFORMANCE; + else + policy->policy = CPUFREQ_POLICY_POWERSAVE; if (boot_cpu_has(X86_FEATURE_CPPC)) { ret = rdmsrl_on_cpu(cpudata->cpu, MSR_AMD_CPPC_REQ, &value); |