drm/amdkfd: Share the original BO for GTT mapping

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If mGPUs is on same IOMMU group, or is ram direct mapped, then mGPUs
can share the original BO for GTT mapping dma address, without creating
new BO from export/import dmabuf.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Philip Yang 2023-08-21 15:09:56 -04:00 • committed by Alex Deucher

parent 2c0f880abc

commit 5d44a766f7

1 changed files with 3 additions and 2 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

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