These are my IOMMU groups after updating a Gigabyte AX370-Gaming K7 to the latest beta bios with the AGESA 1.0.0.6 code.
I had to do the ACS Override Enabled (downstream,multifunction) for them to appear like this, with nothing enabled they look even worse than the previous bios lol.
My performance in gaming tanked though, don't know why i'm getting 50-60fps average in the Rise of the Tomb Raider benchmark when i had around 180-200 on bare metal.
IOMMU group 0
[1022:1452] 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 1
[1022:1453] 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453
IOMMU group 2
[1022:1453] 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453
IOMMU group 3
[1022:1452] 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 4
[1022:1452] 00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 5
[1022:1453] 00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1453
IOMMU group 6
[1022:1452] 00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 7
[1022:1452] 00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 8
[1022:1454] 00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1454
IOMMU group 9
[1022:1452] 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1452
IOMMU group 10
[1022:1454] 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1454
IOMMU group 11
[1022:790b] 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59)
[1022:790e] 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
IOMMU group 12
[1022:1460] 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1460
[1022:1461] 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1461
[1022:1462] 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1462
[1022:1463] 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1463
[1022:1464] 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1464
[1022:1465] 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1465
[1022:1466] 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1466
[1022:1467] 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1467
IOMMU group 13
[144d:a804] 01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961
IOMMU group 14
[1022:43b9] 03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43b9 (rev 02)
IOMMU group 15
[1022:43b5] 03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43b5 (rev 02)
IOMMU group 16
[1022:43b0] 03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b0 (rev 02)
IOMMU group 17
[1022:43b4] 04:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
IOMMU group 18
[1022:43b4] 04:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
IOMMU group 19
[1022:43b4] 04:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
IOMMU group 20
[1022:43b4] 04:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43b4 (rev 02)
IOMMU group 21
[1b21:1343] 05:00.0 USB controller: ASMedia Technology Inc. Device 1343
IOMMU group 22
[8086:1539] 06:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
IOMMU group 23
[1969:e0b1] 07:00.0 Ethernet controller: Qualcomm Atheros Device e0b1 (rev 10)
IOMMU group 24
[10de:1b06] 09:00.0 VGA compatible controller: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] (rev a1)
IOMMU group 25
[10de:10ef] 09:00.1 Audio device: NVIDIA Corporation GP102 HDMI Audio Controller (rev a1)
IOMMU group 26
[1022:145a] 11:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 145a
IOMMU group 27
[1022:1456] 11:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 1456
IOMMU group 28
[1022:145c] 11:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 145c
IOMMU group 29
[1022:1455] 12:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1455
IOMMU group 30
[1022:7901] 12:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
IOMMU group 31
[1022:1457] 12:00.3 Audio device: Advanced Micro Devices, Inc. [AMD] Device 1457