Notify the BIOS that we can handle _CST.

Signed-off-by: Dominik Brodowski <linux@brodo.de>

 drivers/acpi/processor_core.c |    8 ++++++++
 1 files changed, 8 insertions(+)

diff -ruN linux-original/drivers/acpi/processor_core.c linux/drivers/acpi/processor_core.c
--- linux-original/drivers/acpi/processor_core.c	2004-11-27 21:39:30.195649704 +0100
+++ linux/drivers/acpi/processor_core.c	2004-11-27 21:42:53.742705848 +0100
@@ -527,6 +527,14 @@
 		request_region(pr->throttling.address, 6, "ACPI CPU throttle");
 	}
 
+	if (!errata.smp && (pr->id == 0) && acpi_fadt.cst_cnt) {
+		status = acpi_os_write_port(acpi_fadt.smi_cmd, acpi_fadt.cst_cnt, 8);
+		if (ACPI_FAILURE(status)) {
+			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+					  "Notifying BIOS of _CST ability failed\n"));
+		}
+	}
+
 	acpi_processor_get_power_info(pr);
 #ifdef CONFIG_CPU_FREQ
 	acpi_processor_ppc_has_changed(pr);