diff options
Diffstat (limited to 'src/drivers/intel/fsp1_1/include/fsp/memmap.h')
-rw-r--r-- | src/drivers/intel/fsp1_1/include/fsp/memmap.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp1_1/include/fsp/memmap.h b/src/drivers/intel/fsp1_1/include/fsp/memmap.h new file mode 100644 index 0000000000..3d51539f55 --- /dev/null +++ b/src/drivers/intel/fsp1_1/include/fsp/memmap.h @@ -0,0 +1,51 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corporation. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc. + */ + +#ifndef _COMMON_MEMMAP_H_ +#define _COMMON_MEMMAP_H_ + +#include <types.h> + +/* + * mmap_region_granluarity must to return a size which is a positive non-zero + * integer multiple of the SMM size when SMM is in use. When not using SMM, + * this value should be set to 8 MiB. + */ +size_t mmap_region_granluarity(void); + +/* Fills in the arguments for the entire SMM region covered by chipset + * protections. e.g. TSEG. */ +void smm_region(void **start, size_t *size); + +enum { + /* SMM handler area. */ + SMM_SUBREGION_HANDLER, + /* SMM cache region. */ + SMM_SUBREGION_CACHE, + /* Chipset specific area. */ + SMM_SUBREGION_CHIPSET, + /* Total sub regions supported. */ + SMM_SUBREGION_NUM, +}; + +/* Fills in the start and size for the requested SMM subregion. Returns + * 0 on susccess, < 0 on failure. */ +int smm_subregion(int sub, void **start, size_t *size); + +#endif /* _COMMON_MEMMAP_H_ */ |