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| author |  Alex Sierra <alex.sierra@amd.com>
| 2021-05-05 12:43:10 -0500 |
|---|---|---|
| committer |  Alex Deucher <alexander.deucher@amd.com>
| 2021-07-01 00:05:41 -0400 |
| commit | 3a61dae854cccb32eb9f31b3b4efda8ea414e647 (patch) | |
| tree | 5ef36aa68397d334d01b772e0e29494b62741176 /drivers/gpu/drm/amd/amdkfd/kfd_svm.h | |
| parent | drm/amdkfd: inc counter on child ranges with xnack off (diff) | |
| download | linux-3a61dae854cccb32eb9f31b3b4efda8ea414e647.tar.gz linux-3a61dae854cccb32eb9f31b3b4efda8ea414e647.tar.bz2 linux-3a61dae854cccb32eb9f31b3b4efda8ea414e647.zip | |
drm/amdkfd: device pgmap owner at the svm migrate init
GPUs in the same XGMI hive have direct access to all
members'VRAM. When mapping memory to a GPU, we don't need
hmm_range_fault to fault device-private pages in the same
hive back to the host. Identifying the page owner as the hive,
rather than the individual GPU, accomplishes this.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_svm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h index a9af03994d1a..1f88bdfdbcc2 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h @@ -35,6 +35,9 @@ #include "amdgpu.h" #include "kfd_priv.h" +#define SVM_ADEV_PGMAP_OWNER(adev)\ + ((adev)->hive ? (void *)(adev)->hive : (void *)(adev)) + struct svm_range_bo { struct amdgpu_bo *bo; struct kref kref; |