diff options
Diffstat (limited to 'src/northbridge/intel/common')
| -rw-r--r-- | src/northbridge/intel/common/mrc_cache.c | 32 | ||||
| -rw-r--r-- | src/northbridge/intel/common/mrc_cache.h | 1 |
2 files changed, 33 insertions, 0 deletions
diff --git a/src/northbridge/intel/common/mrc_cache.c b/src/northbridge/intel/common/mrc_cache.c index 82b1005a7a..4c3ee5d43c 100644 --- a/src/northbridge/intel/common/mrc_cache.c +++ b/src/northbridge/intel/common/mrc_cache.c @@ -250,3 +250,35 @@ struct mrc_data_container *find_current_mrc_cache(void) // 0. compare MRC data to last mrc-cache block (exit if same) return find_current_mrc_cache_local(cache_base, cache_size); } + +struct mrc_data_container * +store_current_mrc_cache(void *data, unsigned length) +{ + struct mrc_data_container *mrcdata; + int output_len = ALIGN(length, 16); + + /* Save the MRC S3 restore data to cbmem */ + mrcdata = cbmem_add + (CBMEM_ID_MRCDATA, + output_len + sizeof(struct mrc_data_container)); + + if (!mrcdata) + return NULL; + + printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n", + data, mrcdata, output_len); + + mrcdata->mrc_signature = MRC_DATA_SIGNATURE; + mrcdata->mrc_data_size = output_len; + mrcdata->reserved = 0; + memcpy(mrcdata->mrc_data, data, length); + + /* Zero the unused space in aligned buffer. */ + if (output_len > length) + memset(mrcdata->mrc_data+length, 0, output_len - length); + + mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data, + mrcdata->mrc_data_size); + + return mrcdata; +} diff --git a/src/northbridge/intel/common/mrc_cache.h b/src/northbridge/intel/common/mrc_cache.h index 408a420a1a..1fb6667669 100644 --- a/src/northbridge/intel/common/mrc_cache.h +++ b/src/northbridge/intel/common/mrc_cache.h @@ -13,5 +13,6 @@ struct mrc_data_container { } __attribute__ ((packed)); struct mrc_data_container *find_current_mrc_cache(void); +struct mrc_data_container *store_current_mrc_cache(void *data, unsigned length); #endif /* NORTHBRIDGE_INTEL_COMMON_MRC_CACHE_H */ |