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e49fe4040a
If svm range perfetch location is not zero, use TTM to alloc amdgpu_bo vram nodes to validate svm range, then map vram nodes to GPUs. Use offset to sub allocate from the same amdgpu_bo to handle overlap vram range while adding new range or unmapping range. svm_bo has ref count to trace the shared ranges. If all ranges of shared amdgpu_bo are migrated to ram, ref count becomes 0, then amdgpu_bo is released, all ranges svm_bo is set to NULL. To migrate range from ram back to vram, allocate the same amdgpu_bo with previous offset if the range has svm_bo. If prange migrate to VRAM, no CPU mapping exist, then process exit will not have unmap callback for this prange to free prange and svm bo. Free outstanding pranges from svms list before process is freed in svm_range_list_fini. Signed-off-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Alex Sierra <alex.sierra@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
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| acp | ||
| amdgpu | ||
| amdkfd | ||
| display | ||
| include | ||
| pm | ||