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-rw-r--r--src/cpu/x86/car.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/src/cpu/x86/car.c b/src/cpu/x86/car.c
index b4345eae60..cdf7cfcb37 100644
--- a/src/cpu/x86/car.c
+++ b/src/cpu/x86/car.c
@@ -30,9 +30,6 @@ typedef void (* const car_migration_func_t)(void);
extern car_migration_func_t _car_migrate_start;
-extern char _car_data_start[];
-extern char _car_data_end[];
-
/*
* The car_migrated global variable determines if the cache-as-ram space has
* been migrated to real RAM. It does this by assuming the following things:
@@ -117,20 +114,20 @@ void *car_sync_var_ptr(void *var)
static void do_car_migrate_variables(void)
{
void *migrated_base;
- size_t car_data_size = &_car_data_end[0] - &_car_data_start[0];
+ size_t car_size = car_data_size();
/* Check if already migrated. */
if (car_migrated)
return;
- migrated_base = cbmem_add(CBMEM_ID_CAR_GLOBALS, car_data_size);
+ migrated_base = cbmem_add(CBMEM_ID_CAR_GLOBALS, car_size);
if (migrated_base == NULL) {
printk(BIOS_ERR, "Could not migrate CAR data!\n");
return;
}
- memcpy(migrated_base, &_car_data_start[0], car_data_size);
+ memcpy(migrated_base, &_car_data_start[0], car_size);
/* Mark that the data has been moved. */
car_migrated = ~0;