The function drm_gem_fb_prepare_fb() is a helper for atomic modesetting,
but currently located next to framebuffer helpers. Move it to GEM atomic
helpers, rename it slightly and adopt the drivers. Same for the rsp
simple-pipe helper.

Compile-tested with x86-64, aarch64 and arm. The patch is fairly large,
but there are no functional changes.

v2:
	* rename to drm_gem_plane_helper_prepare_fb() (Daniel)
	* add tutorial-style documentation

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c     |  4 +-
 drivers/gpu/drm/drm_gem_atomic_helper.c      | 96 +++++++++++++++++++-
 drivers/gpu/drm/drm_gem_framebuffer_helper.c | 63 -------------
 drivers/gpu/drm/drm_gem_vram_helper.c        |  4 +-
 drivers/gpu/drm/imx/dcss/dcss-plane.c        |  4 +-
 drivers/gpu/drm/imx/ipuv3-plane.c            |  4 +-
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c    |  3 +-
 drivers/gpu/drm/ingenic/ingenic-ipu.c        |  4 +-
 drivers/gpu/drm/mcde/mcde_display.c          |  4 +-
 drivers/gpu/drm/mediatek/mtk_drm_plane.c     |  6 +-
 drivers/gpu/drm/meson/meson_overlay.c        |  8 +-
 drivers/gpu/drm/meson/meson_plane.c          |  4 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c    |  4 +-
 drivers/gpu/drm/msm/msm_atomic.c             |  4 +-
 drivers/gpu/drm/mxsfb/mxsfb_kms.c            |  6 +-
 drivers/gpu/drm/pl111/pl111_display.c        |  4 +-
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c        |  4 +-
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c  |  3 +-
 drivers/gpu/drm/stm/ltdc.c                   |  4 +-
 drivers/gpu/drm/sun4i/sun4i_layer.c          |  4 +-
 drivers/gpu/drm/sun4i/sun8i_ui_layer.c       |  4 +-
 drivers/gpu/drm/sun4i/sun8i_vi_layer.c       |  4 +-
 drivers/gpu/drm/tegra/plane.c                |  4 +-
 drivers/gpu/drm/tidss/tidss_plane.c          |  4 +-
 drivers/gpu/drm/tiny/hx8357d.c               |  4 +-
 drivers/gpu/drm/tiny/ili9225.c               |  4 +-
 drivers/gpu/drm/tiny/ili9341.c               |  4 +-
 drivers/gpu/drm/tiny/ili9486.c               |  4 +-
 drivers/gpu/drm/tiny/mi0283qt.c              |  4 +-
 drivers/gpu/drm/tiny/repaper.c               |  3 +-
 drivers/gpu/drm/tiny/st7586.c                |  4 +-
 drivers/gpu/drm/tiny/st7735r.c               |  4 +-
 drivers/gpu/drm/tve200/tve200_display.c      |  4 +-
 drivers/gpu/drm/vc4/vc4_plane.c              |  4 +-
 drivers/gpu/drm/vkms/vkms_plane.c            |  3 +-
 drivers/gpu/drm/xen/xen_drm_front_kms.c      |  3 +-
 include/drm/drm_gem_atomic_helper.h          |  8 ++
 include/drm/drm_gem_framebuffer_helper.h     |  6 +-
 include/drm/drm_modeset_helper_vtables.h     |  2 +-
 include/drm/drm_plane.h                      |  4 +-
 include/drm/drm_simple_kms_helper.h          |  2 +-
 41 files changed, 178 insertions(+), 142 deletions(-)

diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c
index e54686c31a90..d8f214e0be82 100644
--- a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c
+++ b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c
@@ -9,8 +9,8 @@
 #include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_panel.h>
 #include <drm/drm_simple_kms_helper.h>
 #include <drm/drm_vblank.h>
@@ -219,7 +219,7 @@ static const struct drm_simple_display_pipe_funcs aspeed_gfx_funcs = {
 	.enable		= aspeed_gfx_pipe_enable,
 	.disable	= aspeed_gfx_pipe_disable,
 	.update		= aspeed_gfx_pipe_update,
-	.prepare_fb	= drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb	= drm_gem_simple_display_pipe_prepare_fb,
 	.enable_vblank	= aspeed_gfx_enable_vblank,
 	.disable_vblank	= aspeed_gfx_disable_vblank,
 };
diff --git a/drivers/gpu/drm/drm_gem_atomic_helper.c b/drivers/gpu/drm/drm_gem_atomic_helper.c
index fa4eae492b81..a005c5a0ba46 100644
--- a/drivers/gpu/drm/drm_gem_atomic_helper.c
+++ b/drivers/gpu/drm/drm_gem_atomic_helper.c
@@ -1,6 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0-or-later

+#include <linux/dma-resv.h>
+
 #include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_gem.h>
 #include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_simple_kms_helper.h>
@@ -12,8 +16,33 @@
  *
  * The GEM atomic helpers library implements generic atomic-commit
  * functions for drivers that use GEM objects. Currently, it provides
- * plane state and framebuffer BO mappings for planes with shadow
- * buffers.
+ * synchronization helpers, and plane state and framebuffer BO mappings
+ * for planes with shadow buffers.
+ *
+ * Before scanout, a plane's framebuffer needs to be synchronized with
+ * possible writers that draw into the framebuffer. All drivers should
+ * call drm_gem_plane_helper_prepare_fb() from their implementation of
+ * struct &drm_plane_helper.prepare_fb . It sets the plane's fence from
+ * the framebuffer so that the DRM core can synchronize access automatically.
+ *
+ * drm_gem_plane_helper_prepare_fb() can also be used directly as
+ * implementation of prepare_fb. For drivers based on
+ * struct drm_simple_display_pipe, drm_gem_simple_display_pipe_prepare_fb()
+ * provides equivalent functionality.
+ *
+ * .. code-block:: c
+ *
+ *	#include <drm/drm_gem_atomic_helper.h>
+ *
+ *	struct drm_plane_helper_funcs driver_plane_helper_funcs = {
+ *		...,
+ *		. prepare_fb = drm_gem_plane_helper_prepare_fb,
+ *	};
+ *
+ *	struct drm_simple_display_pipe_funcs driver_pipe_funcs = {
+ *		...,
+ *		. prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
+ *	};
  *
  * A driver using a shadow buffer copies the content of the shadow buffers
  * into the HW's framebuffer memory during an atomic update. This requires
@@ -32,7 +61,7 @@
  *
  * .. code-block:: c
  *
- *	#include <drm/drm/gem_atomic_helper.h>
+ *	#include <drm/drm_gem_atomic_helper.h>
  *
  *	struct drm_plane_funcs driver_plane_funcs = {
  *		...,
@@ -87,6 +116,65 @@
  *	}
  */

+/*
+ * Plane Helpers
+ */
+
+/**
+ * drm_gem_plane_helper_prepare_fb() - Prepare a GEM backed framebuffer
+ * @plane: Plane
+ * @state: Plane state the fence will be attached to
+ *
+ * This function extracts the exclusive fence from &drm_gem_object.resv and
+ * attaches it to plane state for the atomic helper to wait on. This is
+ * necessary to correctly implement implicit synchronization for any buffers
+ * shared as a struct &dma_buf. This function can be used as the
+ * &drm_plane_helper_funcs.prepare_fb callback.
+ *
+ * There is no need for &drm_plane_helper_funcs.cleanup_fb hook for simple
+ * GEM based framebuffer drivers which have their buffers always pinned in
+ * memory.
+ *
+ * See drm_atomic_set_fence_for_plane() for a discussion of implicit and
+ * explicit fencing in atomic modeset updates.
+ */
+int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
+{
+	struct drm_gem_object *obj;
+	struct dma_fence *fence;
+
+	if (!state->fb)
+		return 0;
+
+	obj = drm_gem_fb_get_obj(state->fb, 0);
+	fence = dma_resv_get_excl_rcu(obj->resv);
+	drm_atomic_set_fence_for_plane(state, fence);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(drm_gem_plane_helper_prepare_fb);
+
+/**
+ * drm_gem_simple_display_pipe_prepare_fb - prepare_fb helper for &drm_simple_display_pipe
+ * @pipe: Simple display pipe
+ * @plane_state: Plane state
+ *
+ * This function uses drm_gem_plane_helper_prepare_fb() to extract the exclusive fence
+ * from &drm_gem_object.resv and attaches it to plane state for the atomic
+ * helper to wait on. This is necessary to correctly implement implicit
+ * synchronization for any buffers shared as a struct &dma_buf. Drivers can use
+ * this as their &drm_simple_display_pipe_funcs.prepare_fb callback.
+ *
+ * See drm_atomic_set_fence_for_plane() for a discussion of implicit and
+ * explicit fencing in atomic modeset updates.
+ */
+int drm_gem_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,
+					   struct drm_plane_state *plane_state)
+{
+	return drm_gem_plane_helper_prepare_fb(&pipe->plane, plane_state);
+}
+EXPORT_SYMBOL(drm_gem_simple_display_pipe_prepare_fb);
+
 /*
  * Shadow-buffered Planes
  */
@@ -198,7 +286,7 @@ int drm_gem_prepare_shadow_fb(struct drm_plane *plane, struct drm_plane_state *p
 	if (!fb)
 		return 0;

-	ret = drm_gem_fb_prepare_fb(plane, plane_state);
+	ret = drm_gem_plane_helper_prepare_fb(plane, plane_state);
 	if (ret)
 		return ret;

diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
index 109d11fb4cd4..5ed2067cebb6 100644
--- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
+++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
@@ -5,13 +5,8 @@
  * Copyright (C) 2017 Noralf Trønnes
  */

-#include <linux/dma-buf.h>
-#include <linux/dma-fence.h>
-#include <linux/dma-resv.h>
 #include <linux/slab.h>

-#include <drm/drm_atomic.h>
-#include <drm/drm_atomic_uapi.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
@@ -19,7 +14,6 @@
 #include <drm/drm_gem.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_modeset_helper.h>
-#include <drm/drm_simple_kms_helper.h>

 #define AFBC_HEADER_SIZE		16
 #define AFBC_TH_LAYOUT_ALIGNMENT	8
@@ -432,60 +426,3 @@ int drm_gem_fb_afbc_init(struct drm_device *dev,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(drm_gem_fb_afbc_init);
-
-/**
- * drm_gem_fb_prepare_fb() - Prepare a GEM backed framebuffer
- * @plane: Plane
- * @state: Plane state the fence will be attached to
- *
- * This function extracts the exclusive fence from &drm_gem_object.resv and
- * attaches it to plane state for the atomic helper to wait on. This is
- * necessary to correctly implement implicit synchronization for any buffers
- * shared as a struct &dma_buf. This function can be used as the
- * &drm_plane_helper_funcs.prepare_fb callback.
- *
- * There is no need for &drm_plane_helper_funcs.cleanup_fb hook for simple
- * gem based framebuffer drivers which have their buffers always pinned in
- * memory.
- *
- * See drm_atomic_set_fence_for_plane() for a discussion of implicit and
- * explicit fencing in atomic modeset updates.
- */
-int drm_gem_fb_prepare_fb(struct drm_plane *plane,
-			  struct drm_plane_state *state)
-{
-	struct drm_gem_object *obj;
-	struct dma_fence *fence;
-
-	if (!state->fb)
-		return 0;
-
-	obj = drm_gem_fb_get_obj(state->fb, 0);
-	fence = dma_resv_get_excl_rcu(obj->resv);
-	drm_atomic_set_fence_for_plane(state, fence);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(drm_gem_fb_prepare_fb);
-
-/**
- * drm_gem_fb_simple_display_pipe_prepare_fb - prepare_fb helper for
- *     &drm_simple_display_pipe
- * @pipe: Simple display pipe
- * @plane_state: Plane state
- *
- * This function uses drm_gem_fb_prepare_fb() to extract the exclusive fence
- * from &drm_gem_object.resv and attaches it to plane state for the atomic
- * helper to wait on. This is necessary to correctly implement implicit
- * synchronization for any buffers shared as a struct &dma_buf. Drivers can use
- * this as their &drm_simple_display_pipe_funcs.prepare_fb callback.
- *
- * See drm_atomic_set_fence_for_plane() for a discussion of implicit and
- * explicit fencing in atomic modeset updates.
- */
-int drm_gem_fb_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,
-					      struct drm_plane_state *plane_state)
-{
-	return drm_gem_fb_prepare_fb(&pipe->plane, plane_state);
-}
-EXPORT_SYMBOL(drm_gem_fb_simple_display_pipe_prepare_fb);
diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 48d4b59d3145..b4d2412d9493 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -8,7 +8,7 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_framebuffer.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_ttm_helper.h>
 #include <drm/drm_gem_vram_helper.h>
 #include <drm/drm_managed.h>
@@ -720,7 +720,7 @@ drm_gem_vram_plane_helper_prepare_fb(struct drm_plane *plane,
 			goto err_drm_gem_vram_unpin;
 	}

-	ret = drm_gem_fb_prepare_fb(plane, new_state);
+	ret = drm_gem_plane_helper_prepare_fb(plane, new_state);
 	if (ret)
 		goto err_drm_gem_vram_unpin;

diff --git a/drivers/gpu/drm/imx/dcss/dcss-plane.c b/drivers/gpu/drm/imx/dcss/dcss-plane.c
index 03ba88f7f995..4723da457bad 100644
--- a/drivers/gpu/drm/imx/dcss/dcss-plane.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-plane.c
@@ -6,7 +6,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>

 #include "dcss-dev.h"
@@ -355,7 +355,7 @@ static void dcss_plane_atomic_disable(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs dcss_plane_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = dcss_plane_atomic_check,
 	.atomic_update = dcss_plane_atomic_update,
 	.atomic_disable = dcss_plane_atomic_disable,
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c
index 075508051b5f..cff783a37162 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.c
+++ b/drivers/gpu/drm/imx/ipuv3-plane.c
@@ -9,8 +9,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_plane_helper.h>

@@ -704,7 +704,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = ipu_plane_atomic_check,
 	.atomic_disable = ipu_plane_atomic_disable,
 	.atomic_update = ipu_plane_atomic_update,
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 7bb31fbee29d..c00961907b10 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -28,6 +28,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_irq.h>
 #include <drm/drm_managed.h>
@@ -780,7 +781,7 @@ static const struct drm_plane_helper_funcs ingenic_drm_plane_helper_funcs = {
 	.atomic_update		= ingenic_drm_plane_atomic_update,
 	.atomic_check		= ingenic_drm_plane_atomic_check,
 	.atomic_disable		= ingenic_drm_plane_atomic_disable,
-	.prepare_fb		= drm_gem_fb_prepare_fb,
+	.prepare_fb		= drm_gem_plane_helper_prepare_fb,
 };

 static const struct drm_crtc_helper_funcs ingenic_drm_crtc_helper_funcs = {
diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c
index e52777ef85fd..91457263a3ce 100644
--- a/drivers/gpu/drm/ingenic/ingenic-ipu.c
+++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c
@@ -23,7 +23,7 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_property.h>
@@ -608,7 +608,7 @@ static const struct drm_plane_helper_funcs ingenic_ipu_plane_helper_funcs = {
 	.atomic_update		= ingenic_ipu_plane_atomic_update,
 	.atomic_check		= ingenic_ipu_plane_atomic_check,
 	.atomic_disable		= ingenic_ipu_plane_atomic_disable,
-	.prepare_fb		= drm_gem_fb_prepare_fb,
+	.prepare_fb		= drm_gem_plane_helper_prepare_fb,
 };

 static int
diff --git a/drivers/gpu/drm/mcde/mcde_display.c b/drivers/gpu/drm/mcde/mcde_display.c
index 7c2e0b865441..dde16ef9650a 100644
--- a/drivers/gpu/drm/mcde/mcde_display.c
+++ b/drivers/gpu/drm/mcde/mcde_display.c
@@ -13,8 +13,8 @@
 #include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_mipi_dsi.h>
 #include <drm/drm_simple_kms_helper.h>
 #include <drm/drm_bridge.h>
@@ -1481,7 +1481,7 @@ static struct drm_simple_display_pipe_funcs mcde_display_funcs = {
 	.update = mcde_display_update,
 	.enable_vblank = mcde_display_enable_vblank,
 	.disable_vblank = mcde_display_disable_vblank,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 int mcde_display_init(struct drm_device *drm)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index 92141a19681b..c95ceb400b07 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -6,10 +6,10 @@

 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
-#include <drm/drm_fourcc.h>
 #include <drm/drm_atomic_uapi.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>

 #include "mtk_drm_crtc.h"
 #include "mtk_drm_ddp_comp.h"
@@ -216,7 +216,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = mtk_plane_atomic_check,
 	.atomic_update = mtk_plane_atomic_update,
 	.atomic_disable = mtk_plane_atomic_disable,
diff --git a/drivers/gpu/drm/meson/meson_overlay.c b/drivers/gpu/drm/meson/meson_overlay.c
index 1ffbbecafa22..be6ca49e20b0 100644
--- a/drivers/gpu/drm/meson/meson_overlay.c
+++ b/drivers/gpu/drm/meson/meson_overlay.c
@@ -10,11 +10,11 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_device.h>
+#include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
-#include <drm/drm_plane_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_plane_helper.h>

 #include "meson_overlay.h"
 #include "meson_registers.h"
@@ -742,7 +742,7 @@ static const struct drm_plane_helper_funcs meson_overlay_helper_funcs = {
 	.atomic_check	= meson_overlay_atomic_check,
 	.atomic_disable	= meson_overlay_atomic_disable,
 	.atomic_update	= meson_overlay_atomic_update,
-	.prepare_fb	= drm_gem_fb_prepare_fb,
+	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
 };

 static bool meson_overlay_format_mod_supported(struct drm_plane *plane,
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c
index 35338ed18209..b8309d8fc277 100644
--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -16,8 +16,8 @@
 #include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>

 #include "meson_plane.h"
@@ -417,7 +417,7 @@ static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
 	.atomic_check	= meson_plane_atomic_check,
 	.atomic_disable	= meson_plane_atomic_disable,
 	.atomic_update	= meson_plane_atomic_update,
-	.prepare_fb	= drm_gem_fb_prepare_fb,
+	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
 };

 static bool meson_plane_format_mod_supported(struct drm_plane *plane,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index bc0231a50132..40eb5c911e3c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -13,7 +13,7 @@
 #include <drm/drm_atomic_uapi.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_file.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>

 #include "msm_drv.h"
 #include "dpu_kms.h"
@@ -892,7 +892,7 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane,
 	 *       we can use msm_atomic_prepare_fb() instead of doing the
 	 *       implicit fence and fb prepare by hand here.
 	 */
-	drm_gem_fb_prepare_fb(plane, new_state);
+	drm_gem_plane_helper_prepare_fb(plane, new_state);

 	if (pstate->aspace) {
 		ret = msm_framebuffer_prepare(new_state->fb,
diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c
index 6a326761dc4a..e9c6544b6a01 100644
--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -5,7 +5,7 @@
  */

 #include <drm/drm_atomic_uapi.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_vblank.h>

 #include "msm_atomic_trace.h"
@@ -22,7 +22,7 @@ int msm_atomic_prepare_fb(struct drm_plane *plane,
 	if (!new_state->fb)
 		return 0;

-	drm_gem_fb_prepare_fb(plane, new_state);
+	drm_gem_plane_helper_prepare_fb(plane, new_state);

 	return msm_framebuffer_prepare(new_state->fb, kms->aspace);
 }
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
index 3e1bb0aefb87..7c19ec5384d4 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
@@ -21,8 +21,8 @@
 #include <drm/drm_encoder.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_vblank.h>
@@ -495,13 +495,13 @@ static bool mxsfb_format_mod_supported(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs mxsfb_plane_primary_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = mxsfb_plane_atomic_check,
 	.atomic_update = mxsfb_plane_primary_atomic_update,
 };

 static const struct drm_plane_helper_funcs mxsfb_plane_overlay_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = mxsfb_plane_atomic_check,
 	.atomic_update = mxsfb_plane_overlay_atomic_update,
 };
diff --git a/drivers/gpu/drm/pl111/pl111_display.c b/drivers/gpu/drm/pl111/pl111_display.c
index 69c02e7c82b7..6fd7f13f1aca 100644
--- a/drivers/gpu/drm/pl111/pl111_display.c
+++ b/drivers/gpu/drm/pl111/pl111_display.c
@@ -17,8 +17,8 @@

 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_vblank.h>

 #include "pl111_drm.h"
@@ -440,7 +440,7 @@ static struct drm_simple_display_pipe_funcs pl111_display_funcs = {
 	.enable = pl111_display_enable,
 	.disable = pl111_display_disable,
 	.update = pl111_display_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static int pl111_clk_div_choose_div(struct clk_hw *hw, unsigned long rate,
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index 53221d8473c1..336ba0648a79 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -11,8 +11,8 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_vblank.h>
@@ -236,7 +236,7 @@ static int rcar_du_vsp_plane_prepare_fb(struct drm_plane *plane,
 	if (ret < 0)
 		return ret;

-	return drm_gem_fb_prepare_fb(plane, state);
+	return drm_gem_plane_helper_prepare_fb(plane, state);
 }

 void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 8d15cabdcb02..daea2493bfb8 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -23,6 +23,7 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_flip_work.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>
@@ -1096,7 +1097,7 @@ static const struct drm_plane_helper_funcs plane_helper_funcs = {
 	.atomic_disable = vop_plane_atomic_disable,
 	.atomic_async_check = vop_plane_atomic_async_check,
 	.atomic_async_update = vop_plane_atomic_async_update,
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 };

 static const struct drm_plane_funcs vop_plane_funcs = {
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 7812094f93d6..15a9eff38abb 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -26,8 +26,8 @@
 #include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_of.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>
@@ -911,7 +911,7 @@ static const struct drm_plane_funcs ltdc_plane_funcs = {
 };

 static const struct drm_plane_helper_funcs ltdc_plane_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = ltdc_plane_atomic_check,
 	.atomic_update = ltdc_plane_atomic_update,
 	.atomic_disable = ltdc_plane_atomic_disable,
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index acfbfd4463a1..259c10b85ee7 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -7,7 +7,7 @@
  */

 #include <drm/drm_atomic_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane_helper.h>

 #include "sun4i_backend.h"
@@ -122,7 +122,7 @@ static bool sun4i_layer_format_mod_supported(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
-	.prepare_fb	= drm_gem_fb_prepare_fb,
+	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
 	.atomic_disable	= sun4i_backend_layer_atomic_disable,
 	.atomic_update	= sun4i_backend_layer_atomic_update,
 };
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index 816ad4ce8996..7cd584e16b53 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -14,8 +14,8 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>

@@ -299,7 +299,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
-	.prepare_fb	= drm_gem_fb_prepare_fb,
+	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
 	.atomic_check	= sun8i_ui_layer_atomic_check,
 	.atomic_disable	= sun8i_ui_layer_atomic_disable,
 	.atomic_update	= sun8i_ui_layer_atomic_update,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index 8cc294a9969d..404c0d2d49cf 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -7,8 +7,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>

@@ -402,7 +402,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
 }

 static const struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
-	.prepare_fb	= drm_gem_fb_prepare_fb,
+	.prepare_fb	= drm_gem_plane_helper_prepare_fb,
 	.atomic_check	= sun8i_vi_layer_atomic_check,
 	.atomic_disable	= sun8i_vi_layer_atomic_disable,
 	.atomic_update	= sun8i_vi_layer_atomic_update,
diff --git a/drivers/gpu/drm/tegra/plane.c b/drivers/gpu/drm/tegra/plane.c
index 539d14935728..19e8847a164b 100644
--- a/drivers/gpu/drm/tegra/plane.c
+++ b/drivers/gpu/drm/tegra/plane.c
@@ -8,7 +8,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_fourcc.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane_helper.h>

 #include "dc.h"
@@ -198,7 +198,7 @@ int tegra_plane_prepare_fb(struct drm_plane *plane,
 	if (!state->fb)
 		return 0;

-	drm_gem_fb_prepare_fb(plane, state);
+	drm_gem_plane_helper_prepare_fb(plane, state);

 	return tegra_dc_pin(dc, to_tegra_plane_state(state));
 }
diff --git a/drivers/gpu/drm/tidss/tidss_plane.c b/drivers/gpu/drm/tidss/tidss_plane.c
index 35067ae674ea..795d24b44091 100644
--- a/drivers/gpu/drm/tidss/tidss_plane.c
+++ b/drivers/gpu/drm/tidss/tidss_plane.c
@@ -10,7 +10,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>

 #include "tidss_crtc.h"
 #include "tidss_dispc.h"
@@ -151,7 +151,7 @@ static void drm_plane_destroy(struct drm_plane *plane)
 }

 static const struct drm_plane_helper_funcs tidss_plane_helper_funcs = {
-	.prepare_fb = drm_gem_fb_prepare_fb,
+	.prepare_fb = drm_gem_plane_helper_prepare_fb,
 	.atomic_check = tidss_plane_atomic_check,
 	.atomic_update = tidss_plane_atomic_update,
 	.atomic_disable = tidss_plane_atomic_disable,
diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index c6525cd02bc2..3e2c2868a363 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -19,8 +19,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
@@ -184,7 +184,7 @@ static const struct drm_simple_display_pipe_funcs hx8357d_pipe_funcs = {
 	.enable = yx240qv29_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode yx350hv15_mode = {
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 8e98962db5a2..6b87df19eec1 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -22,8 +22,8 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_rect.h>
@@ -328,7 +328,7 @@ static const struct drm_simple_display_pipe_funcs ili9225_pipe_funcs = {
 	.enable		= ili9225_pipe_enable,
 	.disable	= ili9225_pipe_disable,
 	.update		= ili9225_pipe_update,
-	.prepare_fb	= drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb	= drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode ili9225_mode = {
diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index 6ce97f0698eb..a97f3f70e4a6 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -18,8 +18,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
@@ -140,7 +140,7 @@ static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = {
 	.enable = yx240qv29_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode yx240qv29_mode = {
diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index d7ce40eb166a..6422a7f67079 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -17,8 +17,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
@@ -153,7 +153,7 @@ static const struct drm_simple_display_pipe_funcs waveshare_pipe_funcs = {
 	.enable = waveshare_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode waveshare_mode = {
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index ff77f983f803..dc76fe53aa72 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -16,8 +16,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
@@ -144,7 +144,7 @@ static const struct drm_simple_display_pipe_funcs mi0283qt_pipe_funcs = {
 	.enable = mi0283qt_enable,
 	.disable = mipi_dbi_pipe_disable,
 	.update = mipi_dbi_pipe_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode mi0283qt_mode = {
diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index 11c602fc9897..2cee07a2e00b 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -29,6 +29,7 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_format_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
@@ -860,7 +861,7 @@ static const struct drm_simple_display_pipe_funcs repaper_pipe_funcs = {
 	.enable = repaper_pipe_enable,
 	.disable = repaper_pipe_disable,
 	.update = repaper_pipe_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 };

 static int repaper_connector_get_modes(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index ff5cf60f4bd7..7d216fe9267f 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -19,8 +19,8 @@
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_format_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_rect.h>
@@ -268,7 +268,7 @@ static const struct drm_simple_display_pipe_funcs st7586_pipe_funcs = {
 	.enable		= st7586_pipe_enable,
 	.disable	= st7586_pipe_disable,
 	.update		= st7586_pipe_update,
-	.prepare_fb	= drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb	= drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct drm_display_mode st7586_mode = {
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index faaba0a033ea..df8872d62cdd 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -19,8 +19,8 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>

@@ -136,7 +136,7 @@ static const struct drm_simple_display_pipe_funcs st7735r_pipe_funcs = {
 	.enable		= st7735r_pipe_enable,
 	.disable	= mipi_dbi_pipe_disable,
 	.update		= mipi_dbi_pipe_update,
-	.prepare_fb	= drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb	= drm_gem_simple_display_pipe_prepare_fb,
 };

 static const struct st7735r_cfg jd_t18003_t01_cfg = {
diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c
index cb0e837d3dba..50e1fb71869f 100644
--- a/drivers/gpu/drm/tve200/tve200_display.c
+++ b/drivers/gpu/drm/tve200/tve200_display.c
@@ -17,8 +17,8 @@

 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_panel.h>
 #include <drm/drm_vblank.h>

@@ -316,7 +316,7 @@ static const struct drm_simple_display_pipe_funcs tve200_display_funcs = {
 	.enable = tve200_display_enable,
 	.disable = tve200_display_disable,
 	.update = tve200_display_update,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 	.enable_vblank = tve200_display_enable_vblank,
 	.disable_vblank = tve200_display_disable_vblank,
 };
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 7322169c0682..1a1d6609b80f 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -20,7 +20,7 @@
 #include <drm/drm_atomic_uapi.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_fourcc.h>
-#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_plane_helper.h>

 #include "uapi/drm/vc4_drm.h"
@@ -1250,7 +1250,7 @@ static int vc4_prepare_fb(struct drm_plane *plane,

 	bo = to_vc4_bo(&drm_fb_cma_get_gem_obj(state->fb, 0)->base);

-	drm_gem_fb_prepare_fb(plane, state);
+	drm_gem_plane_helper_prepare_fb(plane, state);

 	if (plane->state->fb == state->fb)
 		return 0;
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 0824327cc860..2a02334b72ac 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -5,6 +5,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_gem_shmem_helper.h>
@@ -159,7 +160,7 @@ static int vkms_prepare_fb(struct drm_plane *plane,
 	if (ret)
 		DRM_ERROR("vmap failed: %d\n", ret);

-	return drm_gem_fb_prepare_fb(plane, state);
+	return drm_gem_plane_helper_prepare_fb(plane, state);
 }

 static void vkms_cleanup_fb(struct drm_plane *plane,
diff --git a/drivers/gpu/drm/xen/xen_drm_front_kms.c b/drivers/gpu/drm/xen/xen_drm_front_kms.c
index ef11b1e4de39..371202ebe900 100644
--- a/drivers/gpu/drm/xen/xen_drm_front_kms.c
+++ b/drivers/gpu/drm/xen/xen_drm_front_kms.c
@@ -13,6 +13,7 @@
 #include <drm/drm_drv.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_gem.h>
+#include <drm/drm_gem_atomic_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_vblank.h>
@@ -301,7 +302,7 @@ static const struct drm_simple_display_pipe_funcs display_funcs = {
 	.mode_valid = display_mode_valid,
 	.enable = display_enable,
 	.disable = display_disable,
-	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
+	.prepare_fb = drm_gem_simple_display_pipe_prepare_fb,
 	.check = display_check,
 	.update = display_update,
 };
diff --git a/include/drm/drm_gem_atomic_helper.h b/include/drm/drm_gem_atomic_helper.h
index 7abf40bdab3d..cfc5adee3d13 100644
--- a/include/drm/drm_gem_atomic_helper.h
+++ b/include/drm/drm_gem_atomic_helper.h
@@ -9,6 +9,14 @@

 struct drm_simple_display_pipe;

+/*
+ * Plane Helpers
+ */
+
+int drm_gem_plane_helper_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state);
+int drm_gem_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,
+					   struct drm_plane_state *plane_state);
+
 /*
  * Helpers for planes with shadow buffers
  */
diff --git a/include/drm/drm_gem_framebuffer_helper.h b/include/drm/drm_gem_framebuffer_helper.h
index 6b013154911d..495d174d9989 100644
--- a/include/drm/drm_gem_framebuffer_helper.h
+++ b/include/drm/drm_gem_framebuffer_helper.h
@@ -9,9 +9,11 @@ struct drm_framebuffer;
 struct drm_framebuffer_funcs;
 struct drm_gem_object;
 struct drm_mode_fb_cmd2;
+#if 0
 struct drm_plane;
 struct drm_plane_state;
 struct drm_simple_display_pipe;
+#endif

 #define AFBC_VENDOR_AND_TYPE_MASK	GENMASK_ULL(63, 52)

@@ -44,8 +46,4 @@ int drm_gem_fb_afbc_init(struct drm_device *dev,
 			 const struct drm_mode_fb_cmd2 *mode_cmd,
 			 struct drm_afbc_framebuffer *afbc_fb);

-int drm_gem_fb_prepare_fb(struct drm_plane *plane,
-			  struct drm_plane_state *state);
-int drm_gem_fb_simple_display_pipe_prepare_fb(struct drm_simple_display_pipe *pipe,
-					      struct drm_plane_state *plane_state);
 #endif
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index eb706342861d..df77ed843dd6 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -1179,7 +1179,7 @@ struct drm_plane_helper_funcs {
 	 * members in the plane structure.
 	 *
 	 * Drivers which always have their buffers pinned should use
-	 * drm_gem_fb_prepare_fb() for this hook.
+	 * drm_gem_plane_helper_prepare_fb() for this hook.
 	 *
 	 * The helpers will call @cleanup_fb with matching arguments for every
 	 * successful call to this hook.
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 95ab14a4336a..1294610e84f4 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -79,8 +79,8 @@ struct drm_plane_state {
 	 * preserved.
 	 *
 	 * Drivers should store any implicit fence in this from their
-	 * &drm_plane_helper_funcs.prepare_fb callback. See drm_gem_fb_prepare_fb()
-	 * and drm_gem_fb_simple_display_pipe_prepare_fb() for suitable helpers.
+	 * &drm_plane_helper_funcs.prepare_fb callback. See drm_gem_plane_helper_prepare_fb()
+	 * and drm_gem_simple_display_pipe_prepare_fb() for suitable helpers.
 	 */
 	struct dma_fence *fence;

diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h
index 40b34573249f..ef9944e9c5fc 100644
--- a/include/drm/drm_simple_kms_helper.h
+++ b/include/drm/drm_simple_kms_helper.h
@@ -117,7 +117,7 @@ struct drm_simple_display_pipe_funcs {
 	 * more details.
 	 *
 	 * Drivers which always have their buffers pinned should use
-	 * drm_gem_fb_simple_display_pipe_prepare_fb() for this hook.
+	 * drm_gem_simple_display_pipe_prepare_fb() for this hook.
 	 */
 	int (*prepare_fb)(struct drm_simple_display_pipe *pipe,
 			  struct drm_plane_state *plane_state);
--
2.30.0

Hi,

On Thu, Feb 11, 2021 at 09:16:36AM +0100, Thomas Zimmermann wrote:
> diff --git a/include/drm/drm_gem_framebuffer_helper.h b/include/drm/drm_gem_framebuffer_helper.h
> index 6b013154911d..495d174d9989 100644
> --- a/include/drm/drm_gem_framebuffer_helper.h
> +++ b/include/drm/drm_gem_framebuffer_helper.h
> @@ -9,9 +9,11 @@ struct drm_framebuffer;
>  struct drm_framebuffer_funcs;
>  struct drm_gem_object;
>  struct drm_mode_fb_cmd2;
> +#if 0
>  struct drm_plane;
>  struct drm_plane_state;
>  struct drm_simple_display_pipe;
> +#endif

That's probably not what you meant?

With that fixed,
Acked-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime