diff options
| author | Alex Sierra <alex.sierra@amd.com> | 2022-02-23 20:34:51 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-02-25 01:25:12 +0300 |
| commit | 158a05a0b885f456a86720b9b6b4571943d2e307 (patch) | |
| tree | 1df4f99538ff4019953c1355bafd116ad660fbe8 /drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | |
| parent | 0bb319e7a1146e15f1919cfbffe44831c29e8f82 (diff) | |
| download | linux-158a05a0b885f456a86720b9b6b4571943d2e307.tar.xz | |
drm/amdgpu: Add use_xgmi_p2p module parameter
This parameter controls xGMI p2p communication, which is enabled by
default. However, it can be disabled by setting it to 0. In case xGMI
p2p is disabled in a dGPU, PCIe p2p interface will be used instead.
This parameter is ignored in GPUs that do not support xGMI
p2p configuration.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@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/amdgpu/amdgpu_xgmi.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h index 0afca51c3c0c..095921851fb5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h @@ -66,7 +66,8 @@ uint64_t amdgpu_xgmi_get_relative_phy_addr(struct amdgpu_device *adev, static inline bool amdgpu_xgmi_same_hive(struct amdgpu_device *adev, struct amdgpu_device *bo_adev) { - return (adev != bo_adev && + return (amdgpu_use_xgmi_p2p && + adev != bo_adev && adev->gmc.xgmi.hive_id && adev->gmc.xgmi.hive_id == bo_adev->gmc.xgmi.hive_id); } |