diff options
Diffstat (limited to 'src/soc/intel/common/opregion.c')
| -rw-r--r-- | src/soc/intel/common/opregion.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/soc/intel/common/opregion.c b/src/soc/intel/common/opregion.c index 44c27fb8fa..fe85d3d263 100644 --- a/src/soc/intel/common/opregion.c +++ b/src/soc/intel/common/opregion.c @@ -15,6 +15,7 @@ #include <console/console.h> #include <string.h> +#include <cbmem.h> #include "gma.h" #include "opregion.h" @@ -24,6 +25,7 @@ int init_igd_opregion(igd_opregion_t *opregion) { struct region_device vbt_rdev; optionrom_vbt_t *vbt; + optionrom_vbt_t *ext_vbt; if (locate_vbt(&vbt_rdev) == CB_ERR) { printk(BIOS_ERR, "VBT not found\n"); @@ -43,8 +45,22 @@ int init_igd_opregion(igd_opregion_t *opregion) sizeof(opregion->header.signature)); memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild, ARRAY_SIZE(vbt->coreblock_biosbuild)); - memcpy(opregion->vbt.gvd1, vbt, MIN(vbt->hdr_vbt_size, - sizeof(opregion->vbt.gvd1))); + /* Extended VBT support */ + if (vbt->hdr_vbt_size > sizeof(opregion->vbt.gvd1)) { + ext_vbt = cbmem_add(CBMEM_ID_EXT_VBT, vbt->hdr_vbt_size); + + if (ext_vbt == NULL) { + printk(BIOS_ERR, "Unable to add Ext VBT to cbmem!\n"); + return 0; + } + + memcpy(ext_vbt, vbt, vbt->hdr_vbt_size); + opregion->mailbox3.rvda = (uintptr_t)ext_vbt; + opregion->mailbox3.rvds = vbt->hdr_vbt_size; + } else { + /* Raw VBT size which can fit in gvd1 */ + memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size); + } /* 8KiB */ opregion->header.size = sizeof(igd_opregion_t) / KiB; |