[PATCH v6 10/11] drm/amdgpu: validate the queue va for resuming the queue

[Christian König]

On 11.07.25 11:39, Prike Liang wrote:
> It requires validating the userq VA whether is mapped before
> trying to resume the queue.
> 
> Signed-off-by: Prike Liang <Prike.Liang at amd.com>

Yeah that looks sane to me. Patch is Reviewed-by: Christian König <christian.koenig at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> index bfe7b229011e..54f44fc834fe 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
> @@ -777,11 +777,18 @@ static int
>  amdgpu_userq_restore_all(struct amdgpu_userq_mgr *uq_mgr)
>  {
>  	struct amdgpu_usermode_queue *queue;
> +	struct amdgpu_fpriv *fpriv = uq_mgr_to_fpriv(uq_mgr);
>  	int queue_id;
>  	int ret = 0, r;
>  
>  	/* Resume all the queues for this process */
>  	idr_for_each_entry(&uq_mgr->userq_idr, queue, queue_id) {
> +
> +		if (!amdgpu_userq_buffer_vas_mapped(&fpriv->vm, queue)) {
> +			drm_file_err(uq_mgr->file, "trying restore queue without va mappping\n");
> +			continue;
> +		}
> +
>  		r = amdgpu_userq_map_helper(uq_mgr, queue);
>  		if (r)
>  			ret = r;