diff options
| author | Jonathan Kim <Jonathan.Kim@amd.com> | 2024-09-20 11:46:05 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-24 18:06:34 -0400 |
| commit | e46738a58f87fc03962ce907f81e69dcd93f88f5 (patch) | |
| tree | 3c59098a35b12759a2b8f433057fff3df36e818d /drivers/gpu/drm/amd/amdkfd | |
| parent | 46186667f98fb7158c98f4ff5da62c427761ffcd (diff) | |
drm/amdkfd: sever xgmi io link if host driver has disable sharing
Host drivers can create partial hives per guest by disabling xgmi sharing
between certain peers in the main hive.
Typically, these partial hives are fully connected per guest session.
In the event that the host makes a mistake by adding a non-shared node
to a guest session, have the KFD reflect sharing disabled by severing
the IO link.
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Tested-by: James Yao <yiqing.yao@amd.com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c index 48caecf7e72e..723f1220e1cc 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.c @@ -28,6 +28,7 @@ #include "kfd_topology.h" #include "amdgpu.h" #include "amdgpu_amdkfd.h" +#include "amdgpu_xgmi.h" /* GPU Processor ID base for dGPUs for which VCRAT needs to be created. * GPU processor ID are expressed with Bit[31]=1. @@ -2329,6 +2330,8 @@ static int kfd_create_vcrat_image_gpu(void *pcrat_image, continue; if (peer_dev->gpu->kfd->hive_id != kdev->kfd->hive_id) continue; + if (!amdgpu_xgmi_get_is_sharing_enabled(kdev->adev, peer_dev->gpu->adev)) + continue; sub_type_hdr = (typeof(sub_type_hdr))( (char *)sub_type_hdr + sizeof(struct crat_subtype_iolink)); |