Tobias Diedrich (ranma+coreboot@tdiedrich.de) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18259
-gerrit
commit 3bcd7eaa8a5e2262b6e1978412cef64841b1d9d7 Author: Tobias Diedrich ranma+openocd@tdiedrich.de Date: Sun Jan 29 18:03:09 2017 +0100
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 jroedel@suse.de ```
Change-Id: I6049fcfad53d16a99495d7a8fbc584c71e371d73 Signed-off-by: Tobias Diedrich ranma+coreboot@tdiedrich.de --- 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 88ff778..e0a1ea4 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 b9873d0..d83f466 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