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| author |   Philip Yang <Philip.Yang@amd.com> | 2021-09-13 10:03:36 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-09-23 16:00:09 -0400 |
| commit | 7beb26dcedaa977ece5be7c712a66b7b6c66fc2b (patch) | |
| tree | 83bdf08a5ed3cf05f321b1412fc8d9859e3c343c /drivers | |
| parent | MAINTAINERS: fix up entry for AMD Powerplay (diff) | |
| download | linux-dev-7beb26dcedaa977ece5be7c712a66b7b6c66fc2b.tar.xz linux-dev-7beb26dcedaa977ece5be7c712a66b7b6c66fc2b.zip | |
drm/amdkfd: SVM map to gpus check vma boundary
SVM range may includes multiple VMAs with different vm_flags, if prange
page index is the last page of the VMA offset + npages, update GPU
mapping to create GPU page table with same VMA access permission.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 9fc8021bb0ab..432d5aae0962 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1178,7 +1178,11 @@ svm_range_map_to_gpu(struct amdgpu_device *adev, struct amdgpu_vm *vm, for (i = offset; i < offset + npages; i++) { last_domain = dma_addr[i] & SVM_RANGE_VRAM_DOMAIN; dma_addr[i] &= ~SVM_RANGE_VRAM_DOMAIN; - if ((prange->start + i) < prange->last && + + /* Collect all pages in the same address range and memory domain + * that can be mapped with a single call to update mapping. + */ + if (i < offset + npages - 1 && last_domain == (dma_addr[i + 1] & SVM_RANGE_VRAM_DOMAIN)) continue; |