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drm/amdgpu: save vm fault information for amdkfd

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amdgpu save the vm fault related information for KFD usage and keep the
copy until KFD read it.

Signed-off-by: shaoyun liu <shaoyun.liu@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
shaoyunl
2018-07-11 22:32:49 -04:00
committed by Oded Gabbay
parent 101fee63cb
commit b97dfa27ef
8 changed files with 105 additions and 2 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@@ -1621,6 +1621,20 @@ bo_reserve_failed:
return ret;
}
int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd,
struct kfd_vm_fault_info *mem)
{
struct amdgpu_device *adev;
adev = (struct amdgpu_device *)kgd;
if (atomic_read(&adev->gmc.vm_fault_info_updated) == 1) {
*mem = *adev->gmc.vm_fault_info;
mb();
atomic_set(&adev->gmc.vm_fault_info_updated, 0);
}
return 0;
}
/* Evict a userptr BO by stopping the queues if necessary
*
* Runs in MMU notifier, may be in RECLAIM_FS context. This means it