Commit 1aed4828 authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
Browse files

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: default avatarPhilip Yang <Philip.Yang@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5ff560cb

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

+5 −1
Original line number Diff line number Diff line
@@ -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;