diff options
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 53996f1a2d80..8972446b7162 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -20,6 +20,7 @@ #include <acpi/processor.h> #ifdef CONFIG_X86 #include <asm/cpufeature.h> +#include <asm/msr.h> #endif #define ACPI_PROCESSOR_FILE_PERFORMANCE "performance" @@ -172,6 +173,9 @@ void acpi_processor_ppc_init(struct cpufreq_policy *policy) { unsigned int cpu; + if (ignore_ppc == 1) + return; + for_each_cpu(cpu, policy->related_cpus) { struct acpi_processor *pr = per_cpu(processors, cpu); int ret; @@ -192,6 +196,14 @@ void acpi_processor_ppc_init(struct cpufreq_policy *policy) if (ret < 0) pr_err("Failed to add freq constraint for CPU%d (%d)\n", cpu, ret); + + if (!pr->performance) + continue; + + ret = acpi_processor_get_platform_limit(pr); + if (ret) + pr_err("Failed to update freq constraint for CPU%d (%d)\n", + cpu, ret); } } |