drm/nouveau: Convert nouveau to use new iterator macros, v2.

Use the new atomic iterator macros, the old ones are about to be
removed. With the new macros, it's more easy to get old and new state so
get them from the macros instead of from obj->state.

Changes since v1:
- Don't mix up old and new state. (danvet)
- Rebase on top of interruptible swap_state changes.

Signed-off-by: Maarten Lankhorst <[e-mail]>
Cc: Ben Skeggs <[e-mail]>
Cc: [e-mail]
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]
Reviewed-by: Daniel Vetter <[e-mail]>

drivers/gpu/drm/nouveau/nv50_display.c

···
 
 	NV_ATOMIC(drm, "%s atomic_check %d\n", crtc->name, asyh->state.active);
 	if (asyh->state.active) {
-		for_each_connector_in_state(asyh->state.state, conn, conns, i) {
+		for_each_new_connector_in_state(asyh->state.state, conn, conns, i) {
 			if (conns->crtc == crtc) {
 				asyc = nouveau_conn_atom(conns);
 				break;
···
 nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
 {
 	struct drm_device *dev = state->dev;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *new_crtc_state;
 	struct drm_crtc *crtc;
-	struct drm_plane_state *plane_state;
+	struct drm_plane_state *new_plane_state;
 	struct drm_plane *plane;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nv50_disp *disp = nv50_disp(dev);
···
 		mutex_lock(&disp->mutex);
 
 	/* Disable head(s). */
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		struct nv50_head_atom *asyh = nv50_head_atom(crtc->state);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		struct nv50_head_atom *asyh = nv50_head_atom(new_crtc_state);
 		struct nv50_head *head = nv50_head(crtc);
 
 		NV_ATOMIC(drm, "%s: clr %04x (set %04x)\n", crtc->name,
···
 	}
 
 	/* Disable plane(s). */
-	for_each_plane_in_state(state, plane, plane_state, i) {
-		struct nv50_wndw_atom *asyw = nv50_wndw_atom(plane->state);
+	for_each_new_plane_in_state(state, plane, new_plane_state, i) {
+		struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 		struct nv50_wndw *wndw = nv50_wndw(plane);
 
 		NV_ATOMIC(drm, "%s: clr %02x (set %02x)\n", plane->name,
···
 	}
 
 	/* Update head(s). */
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		struct nv50_head_atom *asyh = nv50_head_atom(crtc->state);
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		struct nv50_head_atom *asyh = nv50_head_atom(new_crtc_state);
 		struct nv50_head *head = nv50_head(crtc);
 
 		NV_ATOMIC(drm, "%s: set %04x (clr %04x)\n", crtc->name,
···
 		}
 	}
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (crtc->state->event)
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		if (new_crtc_state->event)
 			drm_crtc_vblank_get(crtc);
 	}
 
 	/* Update plane(s). */
-	for_each_plane_in_state(state, plane, plane_state, i) {
-		struct nv50_wndw_atom *asyw = nv50_wndw_atom(plane->state);
+	for_each_new_plane_in_state(state, plane, new_plane_state, i) {
+		struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 		struct nv50_wndw *wndw = nv50_wndw(plane);
 
 		NV_ATOMIC(drm, "%s: set %02x (clr %02x)\n", plane->name,
···
 		mutex_unlock(&disp->mutex);
 
 	/* Wait for HW to signal completion. */
-	for_each_plane_in_state(state, plane, plane_state, i) {
-		struct nv50_wndw_atom *asyw = nv50_wndw_atom(plane->state);
+	for_each_new_plane_in_state(state, plane, new_plane_state, i) {
+		struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 		struct nv50_wndw *wndw = nv50_wndw(plane);
 		int ret = nv50_wndw_wait_armed(wndw, asyw);
 		if (ret)
 			NV_ERROR(drm, "%s: timeout\n", plane->name);
 	}
 
-	for_each_crtc_in_state(state, crtc, crtc_state, i) {
-		if (crtc->state->event) {
+	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
+		if (new_crtc_state->event) {
 			unsigned long flags;
 			/* Get correct count/ts if racing with vblank irq */
 			drm_crtc_accurate_vblank_count(crtc);
 			spin_lock_irqsave(&crtc->dev->event_lock, flags);
-			drm_crtc_send_vblank_event(crtc, crtc->state->event);
+			drm_crtc_send_vblank_event(crtc, new_crtc_state->event);
 			spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
-			crtc->state->event = NULL;
+			new_crtc_state->event = NULL;
 			drm_crtc_vblank_put(crtc);
 		}
 	}
···
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nv50_disp *disp = nv50_disp(dev);
-	struct drm_plane_state *plane_state;
+	struct drm_plane_state *old_plane_state;
 	struct drm_plane *plane;
 	struct drm_crtc *crtc;
 	bool active = false;
···
 	if (ret)
 		goto err_cleanup;
 
-	for_each_plane_in_state(state, plane, plane_state, i) {
-		struct nv50_wndw_atom *asyw = nv50_wndw_atom(plane_state);
+	for_each_old_plane_in_state(state, plane, old_plane_state, i) {
+		struct nv50_wndw_atom *asyw = nv50_wndw_atom(old_plane_state);
 		struct nv50_wndw *wndw = nv50_wndw(plane);
+
 		if (asyw->set.image) {
 			asyw->ntfy.handle = wndw->dmac->sync.handle;
 			asyw->ntfy.offset = wndw->ntfy;
···
 
 static int
 nv50_disp_outp_atomic_check_clr(struct nv50_atom *atom,
-				struct drm_connector *connector)
+				struct drm_connector_state *old_connector_state)
 {
-	struct drm_encoder *encoder = connector->state->best_encoder;
-	struct drm_crtc_state *crtc_state;
+	struct drm_encoder *encoder = old_connector_state->best_encoder;
+	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	struct drm_crtc *crtc;
 	struct nv50_outp_atom *outp;
 
-	if (!(crtc = connector->state->crtc))
+	if (!(crtc = old_connector_state->crtc))
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(&atom->state, crtc);
-	if (crtc->state->active && drm_atomic_crtc_needs_modeset(crtc_state)) {
+	old_crtc_state = drm_atomic_get_old_crtc_state(&atom->state, crtc);
+	new_crtc_state = drm_atomic_get_new_crtc_state(&atom->state, crtc);
+	if (old_crtc_state->active && drm_atomic_crtc_needs_modeset(new_crtc_state)) {
 		outp = nv50_disp_outp_atomic_add(atom, encoder);
 		if (IS_ERR(outp))
 			return PTR_ERR(outp);
···
 				struct drm_connector_state *connector_state)
 {
 	struct drm_encoder *encoder = connector_state->best_encoder;
-	struct drm_crtc_state *crtc_state;
+	struct drm_crtc_state *new_crtc_state;
 	struct drm_crtc *crtc;
 	struct nv50_outp_atom *outp;
 
 	if (!(crtc = connector_state->crtc))
 		return 0;
 
-	crtc_state = drm_atomic_get_existing_crtc_state(&atom->state, crtc);
-	if (crtc_state->active && drm_atomic_crtc_needs_modeset(crtc_state)) {
+	new_crtc_state = drm_atomic_get_new_crtc_state(&atom->state, crtc);
+	if (new_crtc_state->active && drm_atomic_crtc_needs_modeset(new_crtc_state)) {
 		outp = nv50_disp_outp_atomic_add(atom, encoder);
 		if (IS_ERR(outp))
 			return PTR_ERR(outp);
···
 nv50_disp_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	struct nv50_atom *atom = nv50_atom(state);
-	struct drm_connector_state *connector_state;
+	struct drm_connector_state *old_connector_state, *new_connector_state;
 	struct drm_connector *connector;
 	int ret, i;
 
···
 	if (ret)
 		return ret;
 
-	for_each_connector_in_state(state, connector, connector_state, i) {
-		ret = nv50_disp_outp_atomic_check_clr(atom, connector);
+	for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i) {
+		ret = nv50_disp_outp_atomic_check_clr(atom, old_connector_state);
 		if (ret)
 			return ret;
 
-		ret = nv50_disp_outp_atomic_check_set(atom, connector_state);
+		ret = nv50_disp_outp_atomic_check_set(atom, new_connector_state);
 		if (ret)
 			return ret;
 	}