diff options
| author | Jonathan Kim <[email protected]> | 2024-09-20 15:46:05 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-10-24 22:06:34 +0000 |
| commit | e46738a58f87fc03962ce907f81e69dcd93f88f5 (patch) | |
| tree | 3c59098a35b12759a2b8f433057fff3df36e818d /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | |
| parent | drm/amdgpu: refine error handling in amdgpu_ttm_tt_pin_userptr (diff) | |
| download | kernel-e46738a58f87fc03962ce907f81e69dcd93f88f5.tar.gz kernel-e46738a58f87fc03962ce907f81e69dcd93f88f5.zip | |
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 <[email protected]>
Tested-by: James Yao <[email protected]>
Reviewed-by: Harish Kasiviswanathan <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h index 41d5f97fc77a..8cc7ab38db7c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h @@ -66,6 +66,8 @@ int amdgpu_xgmi_get_hops_count(struct amdgpu_device *adev, struct amdgpu_device *peer_adev); int amdgpu_xgmi_get_num_links(struct amdgpu_device *adev, struct amdgpu_device *peer_adev); +bool amdgpu_xgmi_get_is_sharing_enabled(struct amdgpu_device *adev, + struct amdgpu_device *peer_adev); uint64_t amdgpu_xgmi_get_relative_phy_addr(struct amdgpu_device *adev, uint64_t addr); static inline bool amdgpu_xgmi_same_hive(struct amdgpu_device *adev, |