soc/intel/mtl: Double the `IgdDvmt50PreAlloc` UPD size to 128MB
This patch increases the IgdDvmt50PreAlloc value as per Intel
recommendation starting with GFX PEIM 103x.
TEST=Able to build and boot google/rex.
Change-Id: I236b38a1ac5efbfcd23e373c09204d8a07b97618
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80406
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
diff --git a/src/soc/intel/meteorlake/romstage/fsp_params.c b/src/soc/intel/meteorlake/romstage/fsp_params.c
index 4842c19..caf57a3 100644
--- a/src/soc/intel/meteorlake/romstage/fsp_params.c
+++ b/src/soc/intel/meteorlake/romstage/fsp_params.c
@@ -113,8 +113,8 @@
};
m_cfg->InternalGfx = !CONFIG(SOC_INTEL_DISABLE_IGD) && is_devfn_enabled(PCI_DEVFN_IGD);
if (m_cfg->InternalGfx) {
- /* IGD is enabled, set IGD stolen size to 64MB. */
- m_cfg->IgdDvmt50PreAlloc = IGD_SM_64MB;
+ /* IGD is enabled, set IGD stolen size to 128MB. */
+ m_cfg->IgdDvmt50PreAlloc = IGD_SM_128MB;
/* DP port config */
m_cfg->DdiPortAConfig = config->ddi_port_A_config;
m_cfg->DdiPortBConfig = config->ddi_port_B_config;