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drm/amdkfd: pages_addr offset must be 0 for system range

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prange->offset is for VRAM range mm_nodes, if multiple ranges share same
mm_nodes, migrate range back to VRAM will reuse the VRAM at offset of
the same mm_nodes. For system memory pages_addr array, the offset is
always 0, otherwise, update GPU mapping will use incorrect system memory
page, and cause system memory corruption.

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>
This commit is contained in:
Philip Yang 2021-06-04 16:22:58 -04:00 committed by Alex Deucher
parent cf2a22e408
commit 0dc2bafb08
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/amd/amdkfd/kfd_svm.c
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@ -1153,7 +1153,7 @@ svm_range_map_to_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm,
prange->mapping.start = prange->start;
prange->mapping.last = prange->last;
prange->mapping.offset = prange->offset;
prange->mapping.offset = prange->ttm_res ? prange->offset : 0;
pte_flags = svm_range_get_pte_flags(adev, prange);
r = amdgpu_vm_bo_update_mapping(adev, bo_adev, vm, false, false, NULL,