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@xxxxxxxxx>
Tested-by: youling <youling257@xxxxxxxxx>
Signed-off-by: Yifan Zhang <yifan1.zhang@xxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_device.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index bb652ee35c25..1fadc9fb168d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -916,6 +916,7 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
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;
}
--
2.25.1
