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| author | Felix Kuehling <[email protected]> | 2025-04-17 16:02:09 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-04-30 22:05:02 +0000 |
| commit | dbe4c63689bc6b5fd3ab72650ea4b6a667e96a68 (patch) | |
| tree | 05683f4b8308917fd0fd28a14840fcf2d72733c0 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | Documentation/amdgpu: Add Ryzen AI Max 300 series processor (diff) | |
| download | kernel-dbe4c63689bc6b5fd3ab72650ea4b6a667e96a68.tar.gz kernel-dbe4c63689bc6b5fd3ab72650ea4b6a667e96a68.zip | |
drm/amdgpu: Fail DMABUF map of XGMI-accessible memory
If peer memory is XGMI-accessible, we should never access it through PCIe
P2P DMA mappings. PCIe P2P is slower, has different coherence behaviour,
limited or no support for atomics, or may not work at all. Fail with a
warning if DMABUF mappings of such memory are attempted.
Signed-off-by: Felix Kuehling <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
0 files changed, 0 insertions, 0 deletions