[PATCH 2/2] drm/amdkfd: configure iommu when kfd init

[Yifan Zhang]

fix clinfo failure in Raven/Picasso:

Number of platforms: 1
  Platform Profile: FULL_PROFILE
  Platform Version: OpenCL 2.2 AMD-APP (3364.0)
  Platform Name: AMD Accelerated Parallel Processing
  Platform Vendor: Advanced Micro Devices, Inc.
  Platform Extensions: cl_khr_icd cl_amd_event_callback

  Platform Name: AMD Accelerated Parallel Processing
Number of devices: 0

Signed-off-by: Yifan Zhang <yifan1.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_device.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 4a416231b24c..16bd64852b61 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -924,6 +924,9 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 
        svm_migrate_init((struct amdgpu_device *)kfd->kgd);
 
+       if (kgd2kfd_resume_iommu(kfd))
+               goto kfd_iommu_resume_error;
+
        if (kfd_resume(kfd))
                goto kfd_resume_error;
 
@@ -947,6 +950,8 @@ bool kgd2kfd_device_init(struct kfd_dev *kfd,
 
 kfd_topology_add_device_error:
 kfd_resume_error:
+       kfd_iommu_suspend(kfd);
+kfd_iommu_resume_error:
 device_iommu_error:
 gws_error:
        device_queue_manager_uninit(kfd->dqm);
-- 
2.25.1