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nehalem sandy ivy: Check cbmem_add() result for MRC data 

In theory we could run out of CBMEM space so check the entry was added.
There is no interest to support builds without EARLY_CBMEM_INIT.

Change-Id: I68dd7c20e3d3692331aaafa2a692c5c0dfce95d5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6033
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki 2014-06-15 15:59:44 +03:00 committed by Patrick Georgi
parent b0cbb2cd17
commit 743a218a60
2 changed files with 29 additions and 30 deletions
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28
src/northbridge/intel/nehalem/raminit.c
View File

@ -1687,7 +1687,6 @@ static void dump_timings(struct raminfo *info)
*/
static void save_timings(struct raminfo *info)
{
#if CONFIG_EARLY_CBMEM_INIT
struct ram_training train;
struct mrc_data_container *mrcdata;
int output_len = ALIGN(sizeof(train), 16);
@ -1722,22 +1721,23 @@ static void save_timings(struct raminfo *info)
mrcdata = cbmem_add
(CBMEM_ID_MRCDATA, output_len + sizeof(struct mrc_data_container));
printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
&train, mrcdata, output_len);
if (mrcdata != NULL) {
printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
&train, mrcdata, output_len);
mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
mrcdata->mrc_data_size = output_len;
mrcdata->reserved = 0;
memcpy(mrcdata->mrc_data, &train, sizeof(train));
mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
mrcdata->mrc_data_size = output_len;
mrcdata->reserved = 0;
memcpy(mrcdata->mrc_data, &train, sizeof(train));
/* Zero the unused space in aligned buffer. */
if (output_len > sizeof(train))
memset(mrcdata->mrc_data + sizeof(train), 0,
output_len - sizeof(train));
/* Zero the unused space in aligned buffer. */
if (output_len > sizeof(train))
memset(mrcdata->mrc_data + sizeof(train), 0,
output_len - sizeof(train));
mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
mrcdata->mrc_data_size);
#endif
mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
mrcdata->mrc_data_size);
}
}
#if REAL

31
src/northbridge/intel/sandybridge/raminit.c
View File

@ -54,8 +54,6 @@
void save_mrc_data(struct pei_data *pei_data)
{
u16 c1, c2, checksum;
#if CONFIG_EARLY_CBMEM_INIT
struct mrc_data_container *mrcdata;
int output_len = ALIGN(pei_data->mrc_output_len, 16);
@ -64,23 +62,24 @@ void save_mrc_data(struct pei_data *pei_data)
(CBMEM_ID_MRCDATA,
output_len + sizeof(struct mrc_data_container));
printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
pei_data->mrc_output, mrcdata, output_len);
if (mrcdata != NULL) {
printk(BIOS_DEBUG, "Relocate MRC DATA from %p to %p (%u bytes)\n",
pei_data->mrc_output, mrcdata, output_len);
mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
mrcdata->mrc_data_size = output_len;
mrcdata->reserved = 0;
memcpy(mrcdata->mrc_data, pei_data->mrc_output,
pei_data->mrc_output_len);
mrcdata->mrc_signature = MRC_DATA_SIGNATURE;
mrcdata->mrc_data_size = output_len;
mrcdata->reserved = 0;
memcpy(mrcdata->mrc_data, pei_data->mrc_output,
pei_data->mrc_output_len);
/* Zero the unused space in aligned buffer. */
if (output_len > pei_data->mrc_output_len)
memset(mrcdata->mrc_data+pei_data->mrc_output_len, 0,
output_len - pei_data->mrc_output_len);
/* Zero the unused space in aligned buffer. */
if (output_len > pei_data->mrc_output_len)
memset(mrcdata->mrc_data+pei_data->mrc_output_len, 0,
output_len - pei_data->mrc_output_len);
mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
mrcdata->mrc_data_size);
#endif
mrcdata->mrc_checksum = compute_ip_checksum(mrcdata->mrc_data,
mrcdata->mrc_data_size);
}
/* Save the MRC seed values to CMOS */
cmos_write32(CMOS_OFFSET_MRC_SEED, pei_data->scrambler_seed);