CBMEM console: Fix CAR migration step

With the change it becomes irrelevant if memcpy() car.global_data or
cbmemc_reinit() is done first.

Change-Id: Ie479eef346c959e97dcc55861ccb0db1321fb7b2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8032
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/arch/x86/include/arch/early_variables.h b/src/arch/x86/include/arch/early_variables.h
index f76c0481ab..2d5ae859ff 100644
--- a/src/arch/x86/include/arch/early_variables.h
+++ b/src/arch/x86/include/arch/early_variables.h
@@ -39,9 +39,14 @@ asm(".previous");
 /* Get the correct pointer for the CAR global variable. */
 void *car_get_var_ptr(void *var);
 
+/* Get and update a CAR_GLOBAL pointing elsewhere in car.global_data*/
+void *car_sync_var_ptr(void *var);
+
 /* Get and set a primitive type global variable. */
 #define car_get_var(var) \
 	*(typeof(var) *)car_get_var_ptr(&(var))
+#define car_sync_var(var) \
+	*(typeof (var) *)car_sync_var_ptr(&(var))
 #define car_set_var(var, val) \
 	do { car_get_var(var) = (val); } while(0)
 
@@ -49,6 +54,7 @@ void *car_get_var_ptr(void *var);
 #define CAR_MIGRATE(migrate_fn_)
 static inline void *car_get_var_ptr(void *var) { return var; }
 #define car_get_var(var) (var)
+#define car_sync_var(var) (var)
 #define car_set_var(var, val) do { (var) = (val); } while (0)
 #endif