Commit 6d67b681 authored by Ramesh Errabolu's avatar Ramesh Errabolu Committed by Alex Deucher
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drm/amdgpu: Checkpoint and Restore VRAM BOs without VA 



Extend checkpoint logic to allow inclusion of VRAM BOs that
do not have a VA attached

Signed-off-by: default avatarRamesh Errabolu <Ramesh.Errabolu@amd.com>
Reviewed-by: default avatarFelix Kuehling <felix.kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 952ee945

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

+6 −2
Original line number Diff line number Diff line
@@ -1846,7 +1846,7 @@ static uint32_t get_process_num_bos(struct kfd_process *p) 
		idr_for_each_entry(&pdd->alloc_idr, mem, id) {

			struct kgd_mem *kgd_mem = (struct kgd_mem *)mem;



			if ((uint64_t)kgd_mem->va > pdd->gpuvm_base)

			if (!kgd_mem->va || kgd_mem->va > pdd->gpuvm_base)

				num_of_bos++;

		}

	}
@@ -1918,7 +1918,11 @@ static int criu_checkpoint_bos(struct kfd_process *p, 
			kgd_mem = (struct kgd_mem *)mem;

			dumper_bo = kgd_mem->bo;



			if ((uint64_t)kgd_mem->va <= pdd->gpuvm_base)

			/* Skip checkpointing BOs that are used for Trap handler

			 * code and state. Currently, these BOs have a VA that

			 * is less GPUVM Base

			 */

			if (kgd_mem->va && kgd_mem->va <= pdd->gpuvm_base)

				continue;



			bo_bucket = &bo_buckets[bo_index];