[ Upstream commit
6f4b590aae217da16cfa44039a2abcfb209137ab ]
When IOMMU disabled in sbios and kfd in iommuv2 path,
IOMMU resume failure blocks system resume. Don't allow kfd to
use iommu v2 when iommu is disabled.
Reported-by: youling <youling257@gmail.com>
Tested-by: youling <youling257@gmail.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
kfd_double_confirm_iommu_support(kfd);
if (kfd_iommu_device_init(kfd)) {
+ kfd->use_iommu_v2 = false;
dev_err(kfd_device, "Error initializing iommuv2\n");
goto device_iommu_error;
}