diff options
| -rw-r--r-- | src/soc/intel/skylake/acpi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/soc/intel/skylake/acpi.c b/src/soc/intel/skylake/acpi.c index 275e77df1a..637092be97 100644 --- a/src/soc/intel/skylake/acpi.c +++ b/src/soc/intel/skylake/acpi.c @@ -35,6 +35,8 @@ #include "chip.h" +#define CPUID_6_EAX_ISST (1 << 7) + /* * List of suported C-states in this processor. */ @@ -379,7 +381,7 @@ void generate_cpu_entries(const struct device *device) printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each.\n", numcpus, cores_per_package); - if (config->speed_shift_enable) { + if (cpuid_eax(6) & CPUID_6_EAX_ISST) { struct cppc_config cppc_config; cpu_init_cppc_config(&cppc_config, 2 /* version 2 */); acpigen_write_CPPC_package(&cppc_config); @@ -405,7 +407,7 @@ void generate_cpu_entries(const struct device *device) cores_per_package); } - if (config->speed_shift_enable) + if (cpuid_eax(6) & CPUID_6_EAX_ISST) acpigen_write_CPPC_method(); acpigen_pop_len(); |