drm: Store new plane state in a variable for atomic_update and disable

In order to store the new plane state in a subsequent helper, let's move
the plane->state dereferences into a variable.

This was done using the following coccinelle script, plus some hand
changes for vmwgfx:

@ plane_atomic_func @
identifier helpers;
identifier func;
@@

(
 static const struct drm_plane_helper_funcs helpers = {
 	...,
 	.atomic_disable = func,
	...,
 };
|
 static const struct drm_plane_helper_funcs helpers = {
 	...,
 	.atomic_update = func,
	...,
 };
)

@ has_new_state_old_state @
identifier plane_atomic_func.func;
identifier plane;
identifier new_state;
symbol old_state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *old_state)
 {
 	...
 	struct drm_plane_state *new_state = plane->state;
	...
 }

@ depends on !has_new_state_old_state @
identifier plane_atomic_func.func;
identifier plane;
symbol old_state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	<+...
-	plane->state
+	new_state
	...+>
 }

@ has_new_state_state @
identifier plane_atomic_func.func;
identifier plane;
identifier new_state;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
 	...
 	struct drm_plane_state *new_state = plane->state;
	...
 }

@ depends on !has_new_state_state @
identifier plane_atomic_func.func;
identifier plane;
symbol state;
@@

 func(struct drm_plane *plane, struct drm_plane_state *state)
 {
+	struct drm_plane_state *new_plane_state = plane->state;
 	<+...
-	plane->state
+	new_plane_state
	...+>
 }

@ has_new_state_old_s @
identifier plane_atomic_func.func;
identifier plane;
identifier new_state;
symbol old_s;
@@

 func(struct drm_plane *plane, struct drm_plane_state *old_s)
 {
 	...
 	struct drm_plane_state *new_state = plane->state;
	...
 }

@ depends on !has_new_state_old_s @
identifier plane_atomic_func.func;
identifier plane;
symbol old_s;
@@

 func(struct drm_plane *plane, struct drm_plane_state *old_s)
 {
+	struct drm_plane_state *new_s = plane->state;
 	<+...
-	plane->state
+	new_s
	...+>
 }
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20210219120032.260676-1-maxime@cerno.tech

drivers/gpu/drm/arc/arcpgu_crtc.c

@@ -147,14 +147,15 @@ static const struct drm_crtc_helper_funcs arc_pgu_crtc_helper_funcs = {
 static void arc_pgu_plane_atomic_update(struct drm_plane *plane,
 					struct drm_plane_state *state)
 {
+	struct drm_plane_state *new_plane_state = plane->state;
 	struct arcpgu_drm_private *arcpgu;
 	struct drm_gem_cma_object *gem;
 
-	if (!plane->state->crtc || !plane->state->fb)
+	if (!new_plane_state->crtc || !new_plane_state->fb)
 		return;
 
-	arcpgu = crtc_to_arcpgu_priv(plane->state->crtc);
-	gem = drm_fb_cma_get_gem_obj(plane->state->fb, 0);
+	arcpgu = crtc_to_arcpgu_priv(new_plane_state->crtc);
+	gem = drm_fb_cma_get_gem_obj(new_plane_state->fb, 0);
 	arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
 }
 

drivers/gpu/drm/arm/hdlcd_crtc.c

@@ -262,7 +262,8 @@ static int hdlcd_plane_atomic_check(struct drm_plane *plane,
 static void hdlcd_plane_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *state)
 {
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_plane_state *new_plane_state = plane->state;
+	struct drm_framebuffer *fb = new_plane_state->fb;
 	struct hdlcd_drm_private *hdlcd;
 	u32 dest_h;
 	dma_addr_t scanout_start;
@@ -270,8 +271,8 @@ static void hdlcd_plane_atomic_update(struct drm_plane *plane,
 	if (!fb)
 		return;
 
-	dest_h = drm_rect_height(&plane->state->dst);
-	scanout_start = drm_fb_cma_get_gem_addr(fb, plane->state, 0);
+	dest_h = drm_rect_height(&new_plane_state->dst);
+	scanout_start = drm_fb_cma_get_gem_addr(fb, new_plane_state, 0);
 
 	hdlcd = plane->dev->dev_private;
 	hdlcd_write(hdlcd, HDLCD_REG_FB_LINE_LENGTH, fb->pitches[0]);

drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c

@@ -733,12 +733,13 @@ static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
 static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p,
 					    struct drm_plane_state *old_s)
 {
+	struct drm_plane_state *new_s = p->state;
 	struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
 	struct atmel_hlcdc_plane_state *hstate =
-			drm_plane_state_to_atmel_hlcdc_plane_state(p->state);
+			drm_plane_state_to_atmel_hlcdc_plane_state(new_s);
 	u32 sr;
 
-	if (!p->state->crtc || !p->state->fb)
+	if (!new_s->crtc || !new_s->fb)
 		return;
 
 	if (!hstate->base.visible) {

drivers/gpu/drm/kmb/kmb_plane.c

@@ -280,6 +280,7 @@ static void config_csc(struct kmb_drm_private *kmb, int plane_id)
 static void kmb_plane_atomic_update(struct drm_plane *plane,
 				    struct drm_plane_state *state)
 {
+	struct drm_plane_state *new_plane_state = plane->state;
 	struct drm_framebuffer *fb;
 	struct kmb_drm_private *kmb;
 	unsigned int width;
@@ -293,10 +294,10 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	int num_planes;
 	static dma_addr_t addr[MAX_SUB_PLANES];
 
-	if (!plane || !plane->state || !state)
+	if (!plane || !new_plane_state || !state)
 		return;
 
-	fb = plane->state->fb;
+	fb = new_plane_state->fb;
 	if (!fb)
 		return;
 	num_planes = fb->format->num_planes;
@@ -313,10 +314,10 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	}
 	spin_unlock_irq(&kmb->irq_lock);
 
-	src_w = (plane->state->src_w >> 16);
-	src_h = plane->state->src_h >> 16;
-	crtc_x = plane->state->crtc_x;
-	crtc_y = plane->state->crtc_y;
+	src_w = (new_plane_state->src_w >> 16);
+	src_h = new_plane_state->src_h >> 16;
+	crtc_x = new_plane_state->crtc_x;
+	crtc_y = new_plane_state->crtc_y;
 
 	drm_dbg(&kmb->drm,
 		"src_w=%d src_h=%d, fb->format->format=0x%x fb->flags=0x%x\n",
@@ -333,7 +334,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 	kmb_write_lcd(kmb, LCD_LAYERn_DMA_LINE_WIDTH(plane_id),
 		      (width * fb->format->cpp[0]));
 
-	addr[Y_PLANE] = drm_fb_cma_get_gem_addr(fb, plane->state, 0);
+	addr[Y_PLANE] = drm_fb_cma_get_gem_addr(fb, new_plane_state, 0);
 	kmb_write_lcd(kmb, LCD_LAYERn_DMA_START_ADDR(plane_id),
 		      addr[Y_PLANE] + fb->offsets[0]);
 	val = get_pixel_format(fb->format->format);
@@ -345,7 +346,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 		kmb_write_lcd(kmb, LCD_LAYERn_DMA_CB_LINE_WIDTH(plane_id),
 			      (width * fb->format->cpp[0]));
 
-		addr[U_PLANE] = drm_fb_cma_get_gem_addr(fb, plane->state,
+		addr[U_PLANE] = drm_fb_cma_get_gem_addr(fb, new_plane_state,
 							U_PLANE);
 		/* check if Cb/Cr is swapped*/
 		if (num_planes == 3 && (val & LCD_LAYER_CRCB_ORDER))
@@ -367,7 +368,7 @@ static void kmb_plane_atomic_update(struct drm_plane *plane,
 				      ((width) * fb->format->cpp[0]));
 
 			addr[V_PLANE] = drm_fb_cma_get_gem_addr(fb,
-								plane->state,
+								new_plane_state,
 								V_PLANE);
 
 			/* check if Cb/Cr is swapped*/

drivers/gpu/drm/mediatek/mtk_drm_plane.c

@@ -175,7 +175,8 @@ static int mtk_plane_atomic_check(struct drm_plane *plane,
 static void mtk_plane_atomic_disable(struct drm_plane *plane,
 				     struct drm_plane_state *old_state)
 {
-	struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
+	struct drm_plane_state *new_state = plane->state;
+	struct mtk_plane_state *state = to_mtk_plane_state(new_state);
 
 	state->pending.enable = false;
 	wmb(); /* Make sure the above parameter is set before update */
@@ -185,9 +186,10 @@ static void mtk_plane_atomic_disable(struct drm_plane *plane,
 static void mtk_plane_atomic_update(struct drm_plane *plane,
 				    struct drm_plane_state *old_state)
 {
-	struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
-	struct drm_crtc *crtc = plane->state->crtc;
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_plane_state *new_state = plane->state;
+	struct mtk_plane_state *state = to_mtk_plane_state(new_state);
+	struct drm_crtc *crtc = new_state->crtc;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct drm_gem_object *gem;
 	struct mtk_drm_gem_obj *mtk_gem;
 	unsigned int pitch, format;
@@ -196,7 +198,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 	if (!crtc || WARN_ON(!fb))
 		return;
 
-	if (!plane->state->visible) {
+	if (!new_state->visible) {
 		mtk_plane_atomic_disable(plane, old_state);
 		return;
 	}
@@ -207,18 +209,18 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 	pitch = fb->pitches[0];
 	format = fb->format->format;
 
-	addr += (plane->state->src.x1 >> 16) * fb->format->cpp[0];
-	addr += (plane->state->src.y1 >> 16) * pitch;
+	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
+	addr += (new_state->src.y1 >> 16) * pitch;
 
 	state->pending.enable = true;
 	state->pending.pitch = pitch;
 	state->pending.format = format;
 	state->pending.addr = addr;
-	state->pending.x = plane->state->dst.x1;
-	state->pending.y = plane->state->dst.y1;
-	state->pending.width = drm_rect_width(&plane->state->dst);
-	state->pending.height = drm_rect_height(&plane->state->dst);
-	state->pending.rotation = plane->state->rotation;
+	state->pending.x = new_state->dst.x1;
+	state->pending.y = new_state->dst.y1;
+	state->pending.width = drm_rect_width(&new_state->dst);
+	state->pending.height = drm_rect_height(&new_state->dst);
+	state->pending.rotation = new_state->rotation;
 	wmb(); /* Make sure the above parameters are set before update */
 	state->pending.dirty = true;
 }

drivers/gpu/drm/omapdrm/omap_plane.c

@@ -88,12 +88,12 @@ static void omap_plane_atomic_update(struct drm_plane *plane,
 static void omap_plane_atomic_disable(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct omap_drm_private *priv = plane->dev->dev_private;
 	struct omap_plane *omap_plane = to_omap_plane(plane);
 
-	plane->state->rotation = DRM_MODE_ROTATE_0;
-	plane->state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY
-			   ? 0 : omap_plane->id;
+	new_state->rotation = DRM_MODE_ROTATE_0;
+	new_state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : omap_plane->id;
 
 	dispc_ovl_enable(priv->dispc, omap_plane->id, false);
 }

drivers/gpu/drm/qxl/qxl_display.c

@@ -634,14 +634,15 @@ static void qxl_free_cursor(struct qxl_bo *cursor_bo)
 static void qxl_primary_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct qxl_device *qdev = to_qxl(plane->dev);
-	struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
+	struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]);
 	struct qxl_bo *primary;
 	struct drm_clip_rect norect = {
 	    .x1 = 0,
 	    .y1 = 0,
-	    .x2 = plane->state->fb->width,
-	    .y2 = plane->state->fb->height
+	    .x2 = new_state->fb->width,
+	    .y2 = new_state->fb->height
 	};
 	uint32_t dumb_shadow_offset = 0;
 
@@ -656,9 +657,9 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
 
 	if (bo->is_dumb)
 		dumb_shadow_offset =
-			qdev->dumb_heads[plane->state->crtc->index].x;
+			qdev->dumb_heads[new_state->crtc->index].x;
 
-	qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1,
+	qxl_draw_dirty_fb(qdev, new_state->fb, bo, 0, 0, &norect, 1, 1,
 			  dumb_shadow_offset);
 }
 
@@ -682,13 +683,14 @@ static void qxl_primary_atomic_disable(struct drm_plane *plane,
 static void qxl_cursor_atomic_update(struct drm_plane *plane,
 				     struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct qxl_device *qdev = to_qxl(plane->dev);
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_framebuffer *fb = new_state->fb;
 
 	if (fb != old_state->fb) {
-		qxl_primary_apply_cursor(qdev, plane->state);
+		qxl_primary_apply_cursor(qdev, new_state);
 	} else {
-		qxl_primary_move_cursor(qdev, plane->state);
+		qxl_primary_move_cursor(qdev, new_state);
 	}
 }
 

drivers/gpu/drm/rcar-du/rcar_du_plane.c

@@ -620,11 +620,12 @@ static int rcar_du_plane_atomic_check(struct drm_plane *plane,
 static void rcar_du_plane_atomic_update(struct drm_plane *plane,
 					struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct rcar_du_plane *rplane = to_rcar_plane(plane);
 	struct rcar_du_plane_state *old_rstate;
 	struct rcar_du_plane_state *new_rstate;
 
-	if (!plane->state->visible)
+	if (!new_state->visible)
 		return;
 
 	rcar_du_plane_setup(rplane);
@@ -638,7 +639,7 @@ static void rcar_du_plane_atomic_update(struct drm_plane *plane,
 	 * bit. We thus need to restart the group if the source changes.
 	 */
 	old_rstate = to_rcar_plane_state(old_state);
-	new_rstate = to_rcar_plane_state(plane->state);
+	new_rstate = to_rcar_plane_state(new_state);
 
 	if ((old_rstate->source == RCAR_DU_PLANE_MEMORY) !=
 	    (new_rstate->source == RCAR_DU_PLANE_MEMORY))

drivers/gpu/drm/rcar-du/rcar_du_vsp.c

@@ -279,10 +279,11 @@ static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
 static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
 					struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
 	struct rcar_du_crtc *crtc = to_rcar_crtc(old_state->crtc);
 
-	if (plane->state->visible)
+	if (new_state->visible)
 		rcar_du_vsp_plane_setup(rplane);
 	else if (old_state->crtc)
 		vsp1_du_atomic_update(rplane->vsp->vsp, crtc->vsp_pipe,

drivers/gpu/drm/sun4i/sun4i_layer.c

@@ -83,7 +83,8 @@ static void sun4i_backend_layer_atomic_disable(struct drm_plane *plane,
 static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
 					      struct drm_plane_state *old_state)
 {
-	struct sun4i_layer_state *layer_state = state_to_sun4i_layer_state(plane->state);
+	struct drm_plane_state *new_state = plane->state;
+	struct sun4i_layer_state *layer_state = state_to_sun4i_layer_state(new_state);
 	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);
 	struct sun4i_backend *backend = layer->backend;
 	struct sun4i_frontend *frontend = backend->frontend;

drivers/gpu/drm/sun4i/sun8i_ui_layer.c

@@ -302,12 +302,13 @@ static void sun8i_ui_layer_atomic_disable(struct drm_plane *plane,
 static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
 					 struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct sun8i_ui_layer *layer = plane_to_sun8i_ui_layer(plane);
-	unsigned int zpos = plane->state->normalized_zpos;
+	unsigned int zpos = new_state->normalized_zpos;
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
 
-	if (!plane->state->visible) {
+	if (!new_state->visible) {
 		sun8i_ui_layer_enable(mixer, layer->channel,
 				      layer->overlay, false, 0, old_zpos);
 		return;

drivers/gpu/drm/sun4i/sun8i_vi_layer.c

@@ -406,12 +406,13 @@ static void sun8i_vi_layer_atomic_disable(struct drm_plane *plane,
 static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
 					 struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct sun8i_vi_layer *layer = plane_to_sun8i_vi_layer(plane);
-	unsigned int zpos = plane->state->normalized_zpos;
+	unsigned int zpos = new_state->normalized_zpos;
 	unsigned int old_zpos = old_state->normalized_zpos;
 	struct sun8i_mixer *mixer = layer->mixer;
 
-	if (!plane->state->visible) {
+	if (!new_state->visible) {
 		sun8i_vi_layer_enable(mixer, layer->channel,
 				      layer->overlay, false, 0, old_zpos);
 		return;

drivers/gpu/drm/tegra/dc.c

@@ -708,34 +708,35 @@ static void tegra_plane_atomic_disable(struct drm_plane *plane,
 static void tegra_plane_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
-	struct tegra_plane_state *state = to_tegra_plane_state(plane->state);
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_plane_state *new_state = plane->state;
+	struct tegra_plane_state *state = to_tegra_plane_state(new_state);
+	struct drm_framebuffer *fb = new_state->fb;
 	struct tegra_plane *p = to_tegra_plane(plane);
 	struct tegra_dc_window window;
 	unsigned int i;
 
 	/* rien ne va plus */
-	if (!plane->state->crtc || !plane->state->fb)
+	if (!new_state->crtc || !new_state->fb)
 		return;
 
-	if (!plane->state->visible)
+	if (!new_state->visible)
 		return tegra_plane_atomic_disable(plane, old_state);
 
 	memset(&window, 0, sizeof(window));
-	window.src.x = plane->state->src.x1 >> 16;
-	window.src.y = plane->state->src.y1 >> 16;
-	window.src.w = drm_rect_width(&plane->state->src) >> 16;
-	window.src.h = drm_rect_height(&plane->state->src) >> 16;
-	window.dst.x = plane->state->dst.x1;
-	window.dst.y = plane->state->dst.y1;
-	window.dst.w = drm_rect_width(&plane->state->dst);
-	window.dst.h = drm_rect_height(&plane->state->dst);
+	window.src.x = new_state->src.x1 >> 16;
+	window.src.y = new_state->src.y1 >> 16;
+	window.src.w = drm_rect_width(&new_state->src) >> 16;
+	window.src.h = drm_rect_height(&new_state->src) >> 16;
+	window.dst.x = new_state->dst.x1;
+	window.dst.y = new_state->dst.y1;
+	window.dst.w = drm_rect_width(&new_state->dst);
+	window.dst.h = drm_rect_height(&new_state->dst);
 	window.bits_per_pixel = fb->format->cpp[0] * 8;
 	window.reflect_x = state->reflect_x;
 	window.reflect_y = state->reflect_y;
 
 	/* copy from state */
-	window.zpos = plane->state->normalized_zpos;
+	window.zpos = new_state->normalized_zpos;
 	window.tiling = state->tiling;
 	window.format = state->format;
 	window.swap = state->swap;
@@ -867,15 +868,16 @@ static int tegra_cursor_atomic_check(struct drm_plane *plane,
 static void tegra_cursor_atomic_update(struct drm_plane *plane,
 				       struct drm_plane_state *old_state)
 {
-	struct tegra_plane_state *state = to_tegra_plane_state(plane->state);
-	struct tegra_dc *dc = to_tegra_dc(plane->state->crtc);
+	struct drm_plane_state *new_state = plane->state;
+	struct tegra_plane_state *state = to_tegra_plane_state(new_state);
+	struct tegra_dc *dc = to_tegra_dc(new_state->crtc);
 	u32 value = CURSOR_CLIP_DISPLAY;
 
 	/* rien ne va plus */
-	if (!plane->state->crtc || !plane->state->fb)
+	if (!new_state->crtc || !new_state->fb)
 		return;
 
-	switch (plane->state->crtc_w) {
+	switch (new_state->crtc_w) {
 	case 32:
 		value |= CURSOR_SIZE_32x32;
 		break;
@@ -894,7 +896,7 @@ static void tegra_cursor_atomic_update(struct drm_plane *plane,
 
 	default:
 		WARN(1, "cursor size %ux%u not supported\n",
-		     plane->state->crtc_w, plane->state->crtc_h);
+		     new_state->crtc_w, new_state->crtc_h);
 		return;
 	}
 
@@ -921,8 +923,8 @@ static void tegra_cursor_atomic_update(struct drm_plane *plane,
 	tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL);
 
 	/* position the cursor */
-	value = (plane->state->crtc_y & 0x3fff) << 16 |
-		(plane->state->crtc_x & 0x3fff);
+	value = (new_state->crtc_y & 0x3fff) << 16 |
+		(new_state->crtc_x & 0x3fff);
 	tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION);
 }
 

drivers/gpu/drm/tegra/hub.c

@@ -427,20 +427,21 @@ static void tegra_shared_plane_atomic_disable(struct drm_plane *plane,
 static void tegra_shared_plane_atomic_update(struct drm_plane *plane,
 					     struct drm_plane_state *old_state)
 {
-	struct tegra_plane_state *state = to_tegra_plane_state(plane->state);
-	struct tegra_dc *dc = to_tegra_dc(plane->state->crtc);
-	unsigned int zpos = plane->state->normalized_zpos;
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_plane_state *new_state = plane->state;
+	struct tegra_plane_state *state = to_tegra_plane_state(new_state);
+	struct tegra_dc *dc = to_tegra_dc(new_state->crtc);
+	unsigned int zpos = new_state->normalized_zpos;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct tegra_plane *p = to_tegra_plane(plane);
 	dma_addr_t base;
 	u32 value;
 	int err;
 
 	/* rien ne va plus */
-	if (!plane->state->crtc || !plane->state->fb)
+	if (!new_state->crtc || !new_state->fb)
 		return;
 
-	if (!plane->state->visible) {
+	if (!new_state->visible) {
 		tegra_shared_plane_atomic_disable(plane, old_state);
 		return;
 	}
@@ -484,17 +485,17 @@ static void tegra_shared_plane_atomic_update(struct drm_plane *plane,
 	tegra_plane_writel(p, state->format, DC_WIN_COLOR_DEPTH);
 	tegra_plane_writel(p, 0, DC_WIN_PRECOMP_WGRP_PARAMS);
 
-	value = V_POSITION(plane->state->crtc_y) |
-		H_POSITION(plane->state->crtc_x);
+	value = V_POSITION(new_state->crtc_y) |
+		H_POSITION(new_state->crtc_x);
 	tegra_plane_writel(p, value, DC_WIN_POSITION);
 
-	value = V_SIZE(plane->state->crtc_h) | H_SIZE(plane->state->crtc_w);
+	value = V_SIZE(new_state->crtc_h) | H_SIZE(new_state->crtc_w);
 	tegra_plane_writel(p, value, DC_WIN_SIZE);
 
 	value = WIN_ENABLE | COLOR_EXPAND;
 	tegra_plane_writel(p, value, DC_WIN_WIN_OPTIONS);
 
-	value = V_SIZE(plane->state->crtc_h) | H_SIZE(plane->state->crtc_w);
+	value = V_SIZE(new_state->crtc_h) | H_SIZE(new_state->crtc_w);
 	tegra_plane_writel(p, value, DC_WIN_CROPPED_SIZE);
 
 	tegra_plane_writel(p, upper_32_bits(base), DC_WINBUF_START_ADDR_HI);
@@ -506,8 +507,8 @@ static void tegra_shared_plane_atomic_update(struct drm_plane *plane,
 	value = CLAMP_BEFORE_BLEND | DEGAMMA_SRGB | INPUT_RANGE_FULL;
 	tegra_plane_writel(p, value, DC_WIN_SET_PARAMS);
 
-	value = OFFSET_X(plane->state->src_y >> 16) |
-		OFFSET_Y(plane->state->src_x >> 16);
+	value = OFFSET_X(new_state->src_y >> 16) |
+		OFFSET_Y(new_state->src_x >> 16);
 	tegra_plane_writel(p, value, DC_WINBUF_CROPPED_POINT);
 
 	if (dc->soc->supports_block_linear) {

drivers/gpu/drm/vboxvideo/vbox_mode.c

@@ -275,20 +275,21 @@ static int vbox_primary_atomic_check(struct drm_plane *plane,
 static void vbox_primary_atomic_update(struct drm_plane *plane,
 				       struct drm_plane_state *old_state)
 {
-	struct drm_crtc *crtc = plane->state->crtc;
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_plane_state *new_state = plane->state;
+	struct drm_crtc *crtc = new_state->crtc;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct vbox_private *vbox = to_vbox_dev(fb->dev);
 	struct drm_mode_rect *clips;
 	uint32_t num_clips, i;
 
 	vbox_crtc_set_base_and_mode(crtc, fb,
-				    plane->state->src_x >> 16,
-				    plane->state->src_y >> 16);
+				    new_state->src_x >> 16,
+				    new_state->src_y >> 16);
 
 	/* Send information about dirty rectangles to VBVA. */
 
-	clips = drm_plane_get_damage_clips(plane->state);
-	num_clips = drm_plane_get_damage_clips_count(plane->state);
+	clips = drm_plane_get_damage_clips(new_state);
+	num_clips = drm_plane_get_damage_clips_count(new_state);
 
 	if (!num_clips)
 		return;
@@ -382,14 +383,15 @@ static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height,
 static void vbox_cursor_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct vbox_private *vbox =
 		container_of(plane->dev, struct vbox_private, ddev);
-	struct vbox_crtc *vbox_crtc = to_vbox_crtc(plane->state->crtc);
-	struct drm_framebuffer *fb = plane->state->fb;
-	u32 width = plane->state->crtc_w;
-	u32 height = plane->state->crtc_h;
+	struct vbox_crtc *vbox_crtc = to_vbox_crtc(new_state->crtc);
+	struct drm_framebuffer *fb = new_state->fb;
+	u32 width = new_state->crtc_w;
+	u32 height = new_state->crtc_h;
 	struct drm_shadow_plane_state *shadow_plane_state =
-		to_drm_shadow_plane_state(plane->state);
+		to_drm_shadow_plane_state(new_state);
 	struct dma_buf_map map = shadow_plane_state->map[0];
 	u8 *src = map.vaddr; /* TODO: Use mapping abstraction properly */
 	size_t data_size, mask_size;

drivers/gpu/drm/vkms/vkms_plane.c

@@ -95,18 +95,19 @@ static const struct drm_plane_funcs vkms_plane_funcs = {
 static void vkms_plane_atomic_update(struct drm_plane *plane,
 				     struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct vkms_plane_state *vkms_plane_state;
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct vkms_composer *composer;
 
-	if (!plane->state->crtc || !fb)
+	if (!new_state->crtc || !fb)
 		return;
 
-	vkms_plane_state = to_vkms_plane_state(plane->state);
+	vkms_plane_state = to_vkms_plane_state(new_state);
 
 	composer = vkms_plane_state->composer;
-	memcpy(&composer->src, &plane->state->src, sizeof(struct drm_rect));
-	memcpy(&composer->dst, &plane->state->dst, sizeof(struct drm_rect));
+	memcpy(&composer->src, &new_state->src, sizeof(struct drm_rect));
+	memcpy(&composer->dst, &new_state->dst, sizeof(struct drm_rect));
 	memcpy(&composer->fb, fb, sizeof(struct drm_framebuffer));
 	drm_framebuffer_get(&composer->fb);
 	composer->offset = fb->offsets[0];

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -372,10 +372,11 @@ void
 vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 				  struct drm_plane_state *old_state)
 {
-	struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
+	struct drm_plane_state *new_state = plane->state;
+	struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
 	struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 	struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
-	struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
+	struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
 	s32 hotspot_x, hotspot_y;
 	int ret = 0;
 
@@ -383,9 +384,9 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 	hotspot_x = du->hotspot_x;
 	hotspot_y = du->hotspot_y;
 
-	if (plane->state->fb) {
-		hotspot_x += plane->state->fb->hot_x;
-		hotspot_y += plane->state->fb->hot_y;
+	if (new_state->fb) {
+		hotspot_x += new_state->fb->hot_x;
+		hotspot_y += new_state->fb->hot_y;
 	}
 
 	du->cursor_surface = vps->surf;
@@ -400,8 +401,8 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 					      hotspot_y);
 	} else if (vps->bo) {
 		ret = vmw_cursor_update_bo(dev_priv, vps->bo,
-					   plane->state->crtc_w,
-					   plane->state->crtc_h,
+					   new_state->crtc_w,
+					   new_state->crtc_h,
 					   hotspot_x, hotspot_y);
 	} else {
 		vmw_cursor_update_position(dev_priv, false, 0, 0);
@@ -409,8 +410,8 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 	}
 
 	if (!ret) {
-		du->cursor_x = plane->state->crtc_x + du->set_gui_x;
-		du->cursor_y = plane->state->crtc_y + du->set_gui_y;
+		du->cursor_x = new_state->crtc_x + du->set_gui_x;
+		du->cursor_y = new_state->crtc_y + du->set_gui_y;
 
 		vmw_cursor_update_position(dev_priv, true,
 					   du->cursor_x + hotspot_x,

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

@@ -286,16 +286,17 @@ static void
 vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane,
 				    struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct vmw_private *dev_priv;
 	struct vmw_legacy_display_unit *ldu;
 	struct vmw_framebuffer *vfb;
 	struct drm_framebuffer *fb;
-	struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
+	struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
 
 
 	ldu = vmw_crtc_to_ldu(crtc);
 	dev_priv = vmw_priv(plane->dev);
-	fb       = plane->state->fb;
+	fb       = new_state->fb;
 
 	vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
 

drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c

@@ -732,16 +732,17 @@ static void
 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
 				    struct drm_plane_state *old_state)
 {
-	struct drm_crtc *crtc = plane->state->crtc;
+	struct drm_plane_state *new_state = plane->state;
+	struct drm_crtc *crtc = new_state->crtc;
 	struct drm_pending_vblank_event *event = NULL;
 	struct vmw_fence_obj *fence = NULL;
 	int ret;
 
 	/* In case of device error, maintain consistent atomic state */
-	if (crtc && plane->state->fb) {
+	if (crtc && new_state->fb) {
 		struct vmw_private *dev_priv = vmw_priv(crtc->dev);
 		struct vmw_framebuffer *vfb =
-			vmw_framebuffer_to_vfb(plane->state->fb);
+			vmw_framebuffer_to_vfb(new_state->fb);
 
 		if (vfb->bo)
 			ret = vmw_sou_plane_update_bo(dev_priv, plane,

drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c

@@ -1582,8 +1582,9 @@ static void
 vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
 				     struct drm_plane_state *old_state)
 {
-	struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
-	struct drm_crtc *crtc = plane->state->crtc;
+	struct drm_plane_state *new_state = plane->state;
+	struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
+	struct drm_crtc *crtc = new_state->crtc;
 	struct vmw_screen_target_display_unit *stdu;
 	struct drm_pending_vblank_event *event;
 	struct vmw_fence_obj *fence = NULL;
@@ -1591,9 +1592,9 @@ vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
 	int ret;
 
 	/* If case of device error, maintain consistent atomic state */
-	if (crtc && plane->state->fb) {
+	if (crtc && new_state->fb) {
 		struct vmw_framebuffer *vfb =
-			vmw_framebuffer_to_vfb(plane->state->fb);
+			vmw_framebuffer_to_vfb(new_state->fb);
 		stdu = vmw_crtc_to_stdu(crtc);
 		dev_priv = vmw_priv(crtc->dev);
 

drivers/gpu/drm/xlnx/zynqmp_disp.c

@@ -1179,11 +1179,12 @@ static void
 zynqmp_disp_plane_atomic_update(struct drm_plane *plane,
 				struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct zynqmp_disp_layer *layer = plane_to_layer(plane);
 	bool format_changed = false;
 
 	if (!old_state->fb ||
-	    old_state->fb->format->format != plane->state->fb->format->format)
+	    old_state->fb->format->format != new_state->fb->format->format)
 		format_changed = true;
 
 	/*
@@ -1195,10 +1196,10 @@ zynqmp_disp_plane_atomic_update(struct drm_plane *plane,
 		if (old_state->fb)
 			zynqmp_disp_layer_disable(layer);
 
-		zynqmp_disp_layer_set_format(layer, plane->state);
+		zynqmp_disp_layer_set_format(layer, new_state);
 	}
 
-	zynqmp_disp_layer_update(layer, plane->state);
+	zynqmp_disp_layer_update(layer, new_state);
 
 	/* Enable or re-enable the plane is the format has changed. */
 	if (format_changed)

drivers/gpu/drm/zte/zx_plane.c

@@ -353,8 +353,9 @@ static void zx_gl_rsz_setup(struct zx_plane *zplane, u32 src_w, u32 src_h,
 static void zx_gl_plane_atomic_update(struct drm_plane *plane,
 				      struct drm_plane_state *old_state)
 {
+	struct drm_plane_state *new_state = plane->state;
 	struct zx_plane *zplane = to_zx_plane(plane);
-	struct drm_framebuffer *fb = plane->state->fb;
+	struct drm_framebuffer *fb = new_state->fb;
 	struct drm_gem_cma_object *cma_obj;
 	void __iomem *layer = zplane->layer;
 	void __iomem *csc = zplane->csc;
@@ -373,15 +374,15 @@ static void zx_gl_plane_atomic_update(struct drm_plane *plane,
 	format = fb->format->format;
 	stride = fb->pitches[0];
 
-	src_x = plane->state->src_x >> 16;
-	src_y = plane->state->src_y >> 16;
-	src_w = plane->state->src_w >> 16;
-	src_h = plane->state->src_h >> 16;
+	src_x = new_state->src_x >> 16;
+	src_y = new_state->src_y >> 16;
+	src_w = new_state->src_w >> 16;
+	src_h = new_state->src_h >> 16;
 
-	dst_x = plane->state->crtc_x;
-	dst_y = plane->state->crtc_y;
-	dst_w = plane->state->crtc_w;
-	dst_h = plane->state->crtc_h;
+	dst_x = new_state->crtc_x;
+	dst_y = new_state->crtc_y;
+	dst_w = new_state->crtc_w;
+	dst_h = new_state->crtc_h;
 
 	bpp = fb->format->cpp[0];