diff options
| -rw-r--r-- | src/soc/intel/skylake/romstage/romstage.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/romstage/romstage.c b/src/soc/intel/skylake/romstage/romstage.c index 9b95f721ca..9c61095214 100644 --- a/src/soc/intel/skylake/romstage/romstage.c +++ b/src/soc/intel/skylake/romstage/romstage.c @@ -85,6 +85,15 @@ void soc_memory_init_params(struct romstage_params *params, dev = dev_find_slot(0, PCI_DEVFN(PCH_DEV_SLOT_LPC, 0)); config = dev->chip_info; + /* + * Set IGD stolen size to 64MB. The FBC hardware for skylake does not + * have access to the bios_reserved range so it always assumes 8MB is + * used and so the kernel will avoid the last 8MB of the stolen window. + * With the default stolen size of 32MB(-8MB) there is not enough space + * for FBC to work with a high resolution panel. + */ + upd->IgdDvmt50PreAlloc = 2; + upd->MmioSize = 0x800; /* 2GB in MB */ upd->TsegSize = CONFIG_SMM_TSEG_SIZE; upd->IedSize = CONFIG_IED_REGION_SIZE; |