diff options
Diffstat (limited to 'drivers/cpufreq/acpi-cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/acpi-cpufreq.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 7b0d49d78c61..937bc286591f 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -734,7 +734,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) #ifdef CONFIG_SMP dmi_check_system(sw_any_bug_dmi_table); - if (bios_with_sw_any_bug && cpumask_weight(policy->cpus) == 1) { + if (bios_with_sw_any_bug && !policy_is_shared(policy)) { policy->shared_type = CPUFREQ_SHARED_TYPE_ALL; cpumask_copy(policy->cpus, cpu_core_mask(cpu)); } @@ -762,6 +762,12 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) switch (perf->control_register.space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD && + boot_cpu_data.x86 == 0xf) { + pr_debug("AMD K8 systems must use native drivers.\n"); + result = -ENODEV; + goto err_unreg; + } pr_debug("SYSTEM IO addr space\n"); data->cpu_feature = SYSTEM_IO_CAPABLE; break; |