Patch allows longer latencies for _CST provided c-states.
(cmp. with ACPI spec (see 8.1.5 and 8.4.2)).

--- linux-2.6.11.orig/drivers/acpi/processor_idle.c	2005-03-02 08:38:25.000000000 +0100
+++ linux-2.6.11/drivers/acpi/processor_idle.c	2005-04-19 13:47:17.000000000 +0200
@@ -646,7 +646,8 @@
 }
 
 
-static void acpi_processor_power_verify_c2(struct acpi_processor_cx *cx)
+static void acpi_processor_power_verify_c2(struct acpi_processor *pr,
+					   struct acpi_processor_cx *cx)
 {
 	ACPI_FUNCTION_TRACE("acpi_processor_get_power_verify_c2");
 
@@ -657,7 +658,7 @@
 	 * C2 latency must be less than or equal to 100
 	 * microseconds.
 	 */
-	else if (cx->latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
+	else if (!pr->flags.has_cst && cx->latency > ACPI_PROCESSOR_MAX_C2_LATENCY) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "latency too large [%d]\n",
 				  cx->latency));
@@ -695,7 +696,7 @@
 	 * C3 latency must be less than or equal to 1000
 	 * microseconds.
 	 */
-	else if (cx->latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
+	else if (!pr->flags.has_cst && cx->latency > ACPI_PROCESSOR_MAX_C3_LATENCY) {
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "latency too large [%d]\n",
 				  cx->latency));
@@ -757,7 +758,7 @@
 			break;
 
 		case ACPI_STATE_C2:
-			acpi_processor_power_verify_c2(cx);
+			acpi_processor_power_verify_c2(pr, cx);
 			break;
 
 		case ACPI_STATE_C3: