From 6d67b681f9ec1bfe2394f28309f7ad991d62db3a Mon Sep 17 00:00:00 2001 From: Ramesh Errabolu Date: Fri, 21 Jul 2023 18:00:41 -0500 Subject: [PATCH] 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: Ramesh Errabolu Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 9307f303c7fd0..35b36cbe5aa2c 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -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]; -- 2.30.2