diff options
| author |   Philip Yang <Philip.Yang@amd.com> | 2020-12-09 21:51:50 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-04-20 21:50:29 -0400 |
| commit | 4c166eb95decf03cfee42d03b42145513a15554a (patch) | |
| tree | 813e3931ce4016bd48fb1b8ade7b9aab1aea02de /drivers/gpu/drm/amd/amdkfd/kfd_topology.c | |
| parent | drm/amdkfd: multiple gpu migrate vram to vram (diff) | |
| download | wireguard-linux-4c166eb95decf03cfee42d03b42145513a15554a.tar.xz wireguard-linux-4c166eb95decf03cfee42d03b42145513a15554a.zip | |
drm/amdkfd: Add SVM API support capability bits
SVMAPISupported property added to HSA_CAPABILITY, the value match
HSA_CAPABILITY defined in Thunk spec:
SVMAPISupported: it will not be supported on older kernels that don't
have HMM or on systems with GFXv8 or older GPUs without support for
48-bit virtual addresses.
CoherentHostAccess property added to HSA_MEMORYPROPERTY, the value match
HSA_MEMORYPROPERTY defined in Thunk spec:
CoherentHostAccess: whether or not device memory can be coherently
accessed by the host CPU.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-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_topology.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index cdef608db4f4..083ac9babfa8 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -1419,6 +1419,12 @@ int kfd_topology_add_device(struct kfd_dev *gpu) dev->node_props.capability |= (adev->ras_features != 0) ? HSA_CAP_RASEVENTNOTIFY : 0; + /* SVM API and HMM page migration work together, device memory type + * is initialized to not 0 when page migration register device memory. + */ + if (adev->kfd.dev->pgmap.type != 0) + dev->node_props.capability |= HSA_CAP_SVMAPI_SUPPORTED; + kfd_debug_print_topology(); if (!res) |