[PATCH] drm/amdgpu: re-create idle bo's PTE during VM state machine reset

Christian König christian.koenig at amd.com
Tue Dec 19 07:59:31 UTC 2023


Am 19.12.23 um 08:00 schrieb ZhenGuo Yin:
> Idle bo's PTE needs to be re-created when resetting VM state machine.
> Set idle bo's vm_bo as moved to mark it as invalid.
>
> Fixes: 55bf196f60df ("drm/amdgpu: reset VM when an error is detected")
> Signed-off-by: ZhenGuo Yin <zhenguo.yin at amd.com>

Good catch, Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 7da71b6a9dc6..b8fcb6c55698 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -285,6 +285,7 @@ static void amdgpu_vm_bo_reset_state_machine(struct amdgpu_vm *vm)
>   	list_for_each_entry_safe(vm_bo, tmp, &vm->idle, vm_status) {
>   		struct amdgpu_bo *bo = vm_bo->bo;
>   
> +		vm_bo->moved = true;
>   		if (!bo || bo->tbo.type != ttm_bo_type_kernel)
>   			list_move(&vm_bo->vm_status, &vm_bo->vm->moved);
>   		else if (bo->parent)



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