ACPI: enable MWAIT for C1 idle

Add MWAIT idle for C1 state instead of halt, on platforms that support
C1 state with MWAIT.

Renames cx->space_id to something more appropriate.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 6e253b5b0f3b..f6d7c508917c 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -34,6 +34,7 @@
 
 #define ACPI_CSTATE_SYSTEMIO    (0)
 #define ACPI_CSTATE_FFH         (1)
+#define ACPI_CSTATE_HALT        (2)
 
 /* Power Management */
 
@@ -64,7 +65,7 @@ struct acpi_processor_cx {
         u8 valid;
         u8 type;
         u32 address;
-        u8 space_id;
+        u8 entry_method;
         u8 index;
         u32 latency;
         u32 latency_ticks;