Problem: When PD/PT update made by CPU root PD was not yet mapped causing page fault.
Fix: Verify root PD is mapped into CPU address space. v2: Make sure that we add the root PD to the relocated list since then it's get mapped into CPU address space bt default in amdgpu_vm_update_directories. Link: https://bugs.freedesktop.org/show_bug.cgi?id=107065 Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com> Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 845f73a..1a8caf1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -156,6 +156,9 @@ static void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base, return; list_add_tail(&base->bo_list, &bo->va); + if (bo->tbo.type == ttm_bo_type_kernel) + list_move(&base->vm_status, &vm->relocated); + if (bo->tbo.resv != vm->root.base.bo->tbo.resv) return; @@ -168,7 +171,8 @@ static void amdgpu_vm_bo_base_init(struct amdgpu_vm_bo_base *base, * is currently evicted. add the bo to the evicted list to make sure it * is validated on next vm use to avoid fault. * */ - list_move_tail(&base->vm_status, &vm->evicted); + if (bo->tbo.type != ttm_bo_type_kernel) + list_move_tail(&base->vm_status, &vm->evicted); } /** -- 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
