+static struct acpi_processor_performance *acpi_perf_data[NR_CPUS];
+
+/*
+ * centrino_cpu_early_init_acpi - Do the preregistering with ACPI P-States
+ * library
+ *
+ * Before doing the actual init, we need to do _PSD related setup whenever
+ * supported by the BIOS. These are handled by this early_init routine.
+ */
+static int centrino_cpu_early_init_acpi(void)
+{
+ unsigned int i, j;
+ struct acpi_processor_performance *data;
+
+ for_each_possible_cpu(i) {
+ data = kzalloc(sizeof(struct acpi_processor_performance),
+ GFP_KERNEL);
+ if (!data) {
+ for_each_possible_cpu(j) {
+ kfree(acpi_perf_data[j]);
+ acpi_perf_data[j] = NULL;
+ }
+ return (-ENOMEM);
+ }
+ acpi_perf_data[i] = data;
+ }
+
+ acpi_processor_preregister_performance(acpi_perf_data);
+ return 0;
+}
+
+
+#ifdef CONFIG_SMP
+/*
+ * Some BIOSes do SW_ANY coordination internally, either set it up in hw
+ * or do it in BIOS firmware and won't inform about it to OS. If not
+ * detected, this has a side effect of making CPU run at a different speed
+ * than OS intended it to run at. Detect it and handle it cleanly.
+ */
+static int bios_with_sw_any_bug;
+static int sw_any_bug_found(struct dmi_system_id *d)
+{
+ bios_with_sw_any_bug = 1;
+ return 0;
+}
+
+static struct dmi_system_id sw_any_bug_dmi_table[] = {
+ {
+ .callback = sw_any_bug_found,
+ .ident = "Supermicro Server X6DLP",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
+ DMI_MATCH(DMI_BIOS_VERSION, "080010"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "X6DLP"),
+ },
+ },
+ { }
+};
+#endif