Re: [PATCH] drm/nouveau/kms/nv50-: Fix drm_dp_remove_payload() invocation

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On Tue, Jun 13, 2023 at 11:05 PM Lyude Paul <lyude@xxxxxxxxxx> wrote:
>
> We changed the semantics for this in:
>
> e761cc20946a ("drm/display/dp_mst: Handle old/new payload states in drm_dp_remove_payload()")
>
> But I totally forgot to update this properly in nouveau. So, let's do that.
>
> Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>

Reviewed-by: Karol Herbst <kherbst@xxxxxxxxxx>

> ---
>  drivers/gpu/drm/nouveau/dispnv50/disp.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> index 5bb777ff13130..1637e08b548c2 100644
> --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
> +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
> @@ -909,15 +909,19 @@ nv50_msto_prepare(struct drm_atomic_state *state,
>         struct nouveau_drm *drm = nouveau_drm(msto->encoder.dev);
>         struct nv50_mstc *mstc = msto->mstc;
>         struct nv50_mstm *mstm = mstc->mstm;
> -       struct drm_dp_mst_atomic_payload *payload;
> +       struct drm_dp_mst_topology_state *old_mst_state;
> +       struct drm_dp_mst_atomic_payload *payload, *old_payload;
>
>         NV_ATOMIC(drm, "%s: msto prepare\n", msto->encoder.name);
>
> +       old_mst_state = drm_atomic_get_old_mst_topology_state(state, mgr);
> +
>         payload = drm_atomic_get_mst_payload_state(mst_state, mstc->port);
> +       old_payload = drm_atomic_get_mst_payload_state(old_mst_state, mstc->port);
>
>         // TODO: Figure out if we want to do a better job of handling VCPI allocation failures here?
>         if (msto->disabled) {
> -               drm_dp_remove_payload(mgr, mst_state, payload, payload);
> +               drm_dp_remove_payload(mgr, mst_state, old_payload, payload);
>
>                 nvif_outp_dp_mst_vcpi(&mstm->outp->outp, msto->head->base.index, 0, 0, 0, 0);
>         } else {
> --
> 2.40.1
>





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