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-rw-r--r--src/soc/intel/common/block/acpi/cpu_hybrid.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/acpi/cpu_hybrid.c b/src/soc/intel/common/block/acpi/cpu_hybrid.c
index e5ccf468dfcb..8f0da02624d6 100644
--- a/src/soc/intel/common/block/acpi/cpu_hybrid.c
+++ b/src/soc/intel/common/block/acpi/cpu_hybrid.c
@@ -24,16 +24,22 @@ static bool is_perf_core(void)
return get_soc_cpu_type() == CPUID_CORE_TYPE_INTEL_CORE;
}
+static struct device *get_cpu_bus_first_child(void)
+{
+ struct device *dev = dev_find_path(NULL, DEVICE_PATH_CPU_CLUSTER);
+ assert(dev != NULL);
+ return (dev->link_list)->children;
+}
+
static u32 get_cpu_index(void)
{
u32 cpu_index = 0;
struct device *dev;
u32 my_apic_id = lapicid();
- for (dev = dev_find_lapic(0); dev; dev = dev->next) {
+ for (dev = get_cpu_bus_first_child(); dev; dev = dev->sibling)
if (my_apic_id > dev->path.apic.apic_id)
cpu_index++;
- }
return cpu_index;
}