summaryrefslogtreecommitdiff
path: root/src/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/x86/Makefile.inc2
-rw-r--r--src/cpu/x86/car.c94
2 files changed, 0 insertions, 96 deletions
diff --git a/src/cpu/x86/Makefile.inc b/src/cpu/x86/Makefile.inc
index 55d1fad7cb..1191069502 100644
--- a/src/cpu/x86/Makefile.inc
+++ b/src/cpu/x86/Makefile.inc
@@ -1,5 +1,3 @@
-romstage-$(CONFIG_CAR_GLOBAL_MIGRATION) += car.c
-
subdirs-y += pae
subdirs-$(CONFIG_PARALLEL_MP) += name
ramstage-$(CONFIG_PARALLEL_MP) += mp_init.c
diff --git a/src/cpu/x86/car.c b/src/cpu/x86/car.c
deleted file mode 100644
index ef645fc1db..0000000000
--- a/src/cpu/x86/car.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <string.h>
-#include <stddef.h>
-#include <console/console.h>
-#include <cbmem.h>
-#include <arch/early_variables.h>
-#include <symbols.h>
-
-typedef void (* const car_migration_func_t)(void);
-
-extern car_migration_func_t _car_migrate_start;
-
-/*
- * 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:
- * 1. cache-as-ram space is zero'd out once it is set up.
- * 2. Either the cache-as-ram space is memory-backed after getting torn down
- * or the space returns 0xff's for each byte read.
- * Based on these 2 attributes there is the ability to tell when the
- * cache-as-ram region has been migrated.
- */
-static int car_migrated CAR_GLOBAL;
-
-/** @brief returns pointer to a CAR variable, before or after migration.
- *
- * @param var pointer to the CAR variable
- */
-void *car_get_var_ptr(void *var)
-{
- char *migrated_base = NULL;
- int offset;
- void *_car_start = _car_global_start;
- void *_car_end = _car_global_end;
-
- /* If the cache-as-ram has not been migrated return the pointer
- * passed in. */
- if (!car_migrated)
- return var;
-
- if (var < _car_start || var >= _car_end) {
- printk(BIOS_ERR,
- "Requesting CAR variable outside of CAR region: %p\n",
- var);
- return var;
- }
-
- migrated_base = cbmem_find(CBMEM_ID_CAR_GLOBALS);
- offset = (char *)var - (char *)_car_start;
-
- if (migrated_base == NULL)
- die("CAR: Could not find migration base!\n");
-
- return &migrated_base[offset];
-}
-
-static void do_car_migrate_variables(void)
-{
- void *migrated_base;
- size_t car_size = car_data_size();
-
- /* Check if already migrated. */
- if (car_migrated)
- return;
-
- 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_global_start, car_size);
-
- /* Mark that the data has been moved. */
- car_migrated = ~0;
-}
-
-static void car_migrate_variables(int is_recovery)
-{
- do_car_migrate_variables();
-}
-ROMSTAGE_CBMEM_INIT_HOOK(car_migrate_variables)