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charset="utf-8" The AIE2 device firmware requires IOMMU on. Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5319 Signed-off-by: Lizhi Hou Reviewed-by: Mario Limonciello --- drivers/accel/amdxdna/aie2_pci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_= pci.c index c4d345d4c76b..22f66c7f534d 100644 --- a/drivers/accel/amdxdna/aie2_pci.c +++ b/drivers/accel/amdxdna/aie2_pci.c @@ -490,6 +490,11 @@ static int aie2_init(struct amdxdna_dev *xdna) return -EINVAL; } =20 + if (!xdna->group) { + XDNA_ERR(xdna, "Running without IOMMU not supported"); + return -EINVAL; + } + ndev =3D drmm_kzalloc(&xdna->ddev, sizeof(*ndev), GFP_KERNEL); if (!ndev) return -ENOMEM; --=20 2.34.1