src/lib/cbmem_common.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2013 Google, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15 #include <console/console.h>
  16 #include <cbmem.h>
  17 #include <bootstate.h>
  18 #include <rules.h>
  19 #include <symbols.h>
  20 #if IS_ENABLED(CONFIG_ARCH_X86) && !IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)
  21 #include <arch/acpi.h>
  22 #endif
  23
  24 void cbmem_run_init_hooks(int is_recovery)
  25 {
  26         cbmem_init_hook_t *init_hook_ptr =
  27                 (cbmem_init_hook_t *)&_cbmem_init_hooks;
  28         cbmem_init_hook_t *einit_hook_ptr =
  29                 (cbmem_init_hook_t *)&_ecbmem_init_hooks;
  30
  31         if (_cbmem_init_hooks_size == 0)
  32                 return;
  33
  34         while (init_hook_ptr !=  einit_hook_ptr) {
  35                 (*init_hook_ptr)(is_recovery);
  36                 init_hook_ptr++;
  37         }
  38 }
  39
  40 void __attribute__((weak)) cbmem_fail_resume(void)
  41 {
  42 }
  43
  44 #if ENV_RAMSTAGE && !IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)
  45 static void init_cbmem_post_device(void *unused)
  46 {
  47         if (acpi_is_wakeup())
  48                 cbmem_initialize();
  49         else
  50                 cbmem_initialize_empty();
  51 }
  52
  53 BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_ENTRY,
  54                         init_cbmem_post_device, NULL);
  55 #endif