From f71572605a2b5438da3f0bacd99bd97a491d4620 Mon Sep 17 00:00:00 2001 From: Meera Ravindranath Date: Thu, 12 Nov 2020 16:29:24 +0530 Subject: soc/intel/jasperlake: Enable VT-d and generate DMAR Table Update UPDs required for the creation of DMAR table. By default coreboot was not generating DMAR table for IOMMU which was resulting in below error message in kernel: DMAR: [Firmware Bug]: No DRHD structure found in DMAR table DMAR: No DMAR devices found These changes will publish DMAR table through ACPI and will not result in the above error. BUG=b:170261791 BRANCH=dedede TEST=Build Dedede, boot to kernel and check dmesg if DMAR table exists. Signed-off-by: Meera Ravindranath Change-Id: I97a9f2df185002a4e58eaa910f867acd0b97ec2b Reviewed-on: https://review.coreboot.org/c/coreboot/+/47506 Tested-by: build bot (Jenkins) Reviewed-by: Karthik Ramasubramanian Reviewed-by: Maulik V Vaghela --- src/soc/intel/jasperlake/romstage/fsp_params.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/soc/intel/jasperlake/romstage/fsp_params.c b/src/soc/intel/jasperlake/romstage/fsp_params.c index 528ef0fd21..cd70807516 100644 --- a/src/soc/intel/jasperlake/romstage/fsp_params.c +++ b/src/soc/intel/jasperlake/romstage/fsp_params.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include #include @@ -81,6 +82,18 @@ static void soc_memory_init_params(FSP_M_CONFIG *m_cfg, /* VT-d config */ m_cfg->VtdDisable = 0; + m_cfg->VtdIopEnable = 0x1; + + if (m_cfg->InternalGfx) { + m_cfg->VtdIgdEnable = 0x1; + m_cfg->VtdBaseAddress[0] = GFXVT_BASE_ADDRESS; + } + + if (m_cfg->SaIpuEnable) { + m_cfg->VtdIpuEnable = 0x1; + m_cfg->VtdBaseAddress[1] = IPUVT_BASE_ADDRESS; + } + m_cfg->VtdBaseAddress[2] = VTVC0_BASE_ADDRESS; m_cfg->SerialIoUartDebugControllerNumber = CONFIG_UART_FOR_CONSOLE; m_cfg->SerialIoUartDebugMode = config->SerialIoUartMode[CONFIG_UART_FOR_CONSOLE]; -- cgit v1.2.3