drm/amdkfd: fix boot failure when iommu is disabled in Picasso.

commit afd18180c07026f94a80ff024acef5f4159084a4 upstream.

When IOMMU disabled in sbios and kfd in iommuv2 path, iommuv2
init will fail. But this failure should not block amdgpu driver init.

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index af9bdf16eefd48761fdd9e1ce24627d0c3e083e4..9dfcef2015c8b2a5e23a901a0791133fb18be97b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2432,10 +2432,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
        if (!adev->gmc.xgmi.pending_reset)
                amdgpu_amdkfd_device_init(adev);
 
-       r = amdgpu_amdkfd_resume_iommu(adev);
-       if (r)
-               goto init_failed;
-
        amdgpu_fru_get_product_info(adev);
 
 init_failed:

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 4a416231b24c8b42a1269227c5e7789702f9016e..a6afacc3b10cdf1638604fa1850318de280e403b 100644 (file)
--- 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 device_iommu_error;
+
        if (kfd_resume(kfd))
                goto kfd_resume_error;