From 31db6f5e179d6e0162c010583a31e1f3addf03b7 Mon Sep 17 00:00:00 2001 From: Tobias Diedrich Date: Sun, 29 Jan 2017 18:03:09 +0100 Subject: [PATCH] asus/f2a85-m_le: Activate IOMMU support Activate the IOMMU for the ASUS F2A85-M LE board. Enable the IOMMU in `devicetree.cb` and build AGESA IOMMU code by enabling the option in `buildOpts.c`. ACPI and MPTABLES interrupt routers are already present since they are syminks to the F2A85-M version. ``` $ uname -a Linux nukunuku 4.8.5 #35 SMP Sun Oct 30 19:34:55 CET 2016 x86_64 GNU/Linux $ lspci -s 0.2 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) I/O Memory Management Unit $ dmesg | grep -i IOMMU ACPI: IVRS 0x00000000BFFAFF70 000070 (v02 AMD AMDIOMMU 00000001 AMD 00000000) AMD-Vi: Applying erratum 746 workaround for IOMMU at 0000:00:00.2 iommu: Adding device 0000:00:01.0 to group 0 [...] iommu: Adding device 0000:00:18.5 to group 9 iommu: Adding device 0000:03:00.0 to group 8 AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40 AMD IOMMUv2 driver by Joerg Roedel ``` Change-Id: I6049fcfad53d16a99495d7a8fbc584c71e371d73 Signed-off-by: Tobias Diedrich Reviewed-on: https://review.coreboot.org/18259 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Martin Roth --- src/mainboard/asus/f2a85-m_le/buildOpts.c | 2 +- src/mainboard/asus/f2a85-m_le/devicetree.cb | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/src/mainboard/asus/f2a85-m_le/buildOpts.c b/src/mainboard/asus/f2a85-m_le/buildOpts.c index 88ff778446..e0a1ea4d3a 100644 --- a/src/mainboard/asus/f2a85-m_le/buildOpts.c +++ b/src/mainboard/asus/f2a85-m_le/buildOpts.c @@ -176,7 +176,7 @@ #define BLDCFG_UMA_ABOVE4G_SUPPORT FALSE #endif -#define BLDCFG_IOMMU_SUPPORT FALSE +#define BLDCFG_IOMMU_SUPPORT TRUE #define BLDCFG_CFG_GNB_HD_AUDIO TRUE //#define BLDCFG_IGPU_SUBSYSTEM_ID OEM_IGPU_SSID diff --git a/src/mainboard/asus/f2a85-m_le/devicetree.cb b/src/mainboard/asus/f2a85-m_le/devicetree.cb index b9873d09c2..d83f466116 100644 --- a/src/mainboard/asus/f2a85-m_le/devicetree.cb +++ b/src/mainboard/asus/f2a85-m_le/devicetree.cb @@ -26,6 +26,7 @@ chip northbridge/amd/agesa/family15tn/root_complex chip northbridge/amd/agesa/family15tn # PCI side of HT root complex device pci 0.0 on end # Root Complex + device pci 0.2 on end # IOMMU device pci 1.0 on end # Internal Graphics P2P bridge 0x99XX device pci 1.1 on end # Internal Multimedia device pci 2.0 on end # PCIE SLOT0 x16 blue