[PATCH 1/2] drm: Allow drivers to modify plane_state in prepare_fb/cleanup_fb

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The drivers have to modify the atomic plane state during the prepare_fb
callback so they track allocations, reservations and dependencies for
this atomic operation involving this fb. In particular, how else do we
set the plane->fence from the framebuffer!

Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 4 ++--
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c     | 4 ++--
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 4 ++--
 drivers/gpu/drm/i915/intel_display.c            | 4 ++--
 drivers/gpu/drm/i915/intel_drv.h                | 4 ++--
 drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c       | 4 ++--
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c       | 4 ++--
 drivers/gpu/drm/omapdrm/omap_plane.c            | 4 ++--
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c     | 4 ++--
 drivers/gpu/drm/tegra/dc.c                      | 4 ++--
 include/drm/drm_modeset_helper_vtables.h        | 4 ++--
 11 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 146809a97a07..72e6b7dd457b 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -755,7 +755,7 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
 }
 
 static int atmel_hlcdc_plane_prepare_fb(struct drm_plane *p,
-					const struct drm_plane_state *new_state)
+					struct drm_plane_state *new_state)
 {
 	/*
 	 * FIXME: we should avoid this const -> non-const cast but it's
@@ -780,7 +780,7 @@ static int atmel_hlcdc_plane_prepare_fb(struct drm_plane *p,
 }
 
 static void atmel_hlcdc_plane_cleanup_fb(struct drm_plane *p,
-				const struct drm_plane_state *old_state)
+					 struct drm_plane_state *old_state)
 {
 	/*
 	 * FIXME: we should avoid this const -> non-const cast but it's
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
index e50467a0deb0..2a3e92976700 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
@@ -171,13 +171,13 @@ static void fsl_dcu_drm_plane_atomic_update(struct drm_plane *plane,
 
 static void
 fsl_dcu_drm_plane_cleanup_fb(struct drm_plane *plane,
-			     const struct drm_plane_state *new_state)
+			     struct drm_plane_state *new_state)
 {
 }
 
 static int
 fsl_dcu_drm_plane_prepare_fb(struct drm_plane *plane,
-			     const struct drm_plane_state *new_state)
+			     struct drm_plane_state *new_state)
 {
 	return 0;
 }
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index 91188f33b1d9..6417158dad61 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -818,14 +818,14 @@ static void ade_disable_channel(struct ade_plane *aplane)
 }
 
 static int ade_plane_prepare_fb(struct drm_plane *plane,
-				const struct drm_plane_state *new_state)
+				struct drm_plane_state *new_state)
 {
 	/* do nothing */
 	return 0;
 }
 
 static void ade_plane_cleanup_fb(struct drm_plane *plane,
-				 const struct drm_plane_state *old_state)
+				 struct drm_plane_state *old_state)
 {
 	/* do nothing */
 }
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8a203b5f347e..123112c240e0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14439,7 +14439,7 @@ static const struct drm_crtc_funcs intel_crtc_funcs = {
  */
 int
 intel_prepare_plane_fb(struct drm_plane *plane,
-		       const struct drm_plane_state *new_state)
+		       struct drm_plane_state *new_state)
 {
 	struct drm_device *dev = plane->dev;
 	struct drm_framebuffer *fb = new_state->fb;
@@ -14525,7 +14525,7 @@ intel_prepare_plane_fb(struct drm_plane *plane,
  */
 void
 intel_cleanup_plane_fb(struct drm_plane *plane,
-		       const struct drm_plane_state *old_state)
+		       struct drm_plane_state *old_state)
 {
 	struct drm_device *dev = plane->dev;
 	struct intel_plane_state *old_intel_state;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 1c700b0c3cea..774aab342f40 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1251,9 +1251,9 @@ void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe);
 void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe);
 void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe);
 int intel_prepare_plane_fb(struct drm_plane *plane,
-			   const struct drm_plane_state *new_state);
+			   struct drm_plane_state *new_state);
 void intel_cleanup_plane_fb(struct drm_plane *plane,
-			    const struct drm_plane_state *old_state);
+			    struct drm_plane_state *old_state);
 int intel_plane_atomic_get_property(struct drm_plane *plane,
 				    const struct drm_plane_state *state,
 				    struct drm_property *property,
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
index 9f96dfe67769..7c9626d92019 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
@@ -99,7 +99,7 @@ static const struct drm_plane_funcs mdp4_plane_funcs = {
 };
 
 static int mdp4_plane_prepare_fb(struct drm_plane *plane,
-		const struct drm_plane_state *new_state)
+				 struct drm_plane_state *new_state)
 {
 	struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
 	struct mdp4_kms *mdp4_kms = get_kms(plane);
@@ -113,7 +113,7 @@ static int mdp4_plane_prepare_fb(struct drm_plane *plane,
 }
 
 static void mdp4_plane_cleanup_fb(struct drm_plane *plane,
-		const struct drm_plane_state *old_state)
+				  struct drm_plane_state *old_state)
 {
 	struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
 	struct mdp4_kms *mdp4_kms = get_kms(plane);
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
index a02a24e75ba6..ba8f43278a44 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
@@ -250,7 +250,7 @@ static const struct drm_plane_funcs mdp5_plane_funcs = {
 };
 
 static int mdp5_plane_prepare_fb(struct drm_plane *plane,
-		const struct drm_plane_state *new_state)
+				 struct drm_plane_state *new_state)
 {
 	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
 	struct mdp5_kms *mdp5_kms = get_kms(plane);
@@ -264,7 +264,7 @@ static int mdp5_plane_prepare_fb(struct drm_plane *plane,
 }
 
 static void mdp5_plane_cleanup_fb(struct drm_plane *plane,
-		const struct drm_plane_state *old_state)
+				  struct drm_plane_state *old_state)
 {
 	struct mdp5_plane *mdp5_plane = to_mdp5_plane(plane);
 	struct mdp5_kms *mdp5_kms = get_kms(plane);
diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
index 4c7727e6be7c..66ac8c40db26 100644
--- a/drivers/gpu/drm/omapdrm/omap_plane.c
+++ b/drivers/gpu/drm/omapdrm/omap_plane.c
@@ -60,7 +60,7 @@ to_omap_plane_state(struct drm_plane_state *state)
 }
 
 static int omap_plane_prepare_fb(struct drm_plane *plane,
-				 const struct drm_plane_state *new_state)
+				 struct drm_plane_state *new_state)
 {
 	if (!new_state->fb)
 		return 0;
@@ -69,7 +69,7 @@ static int omap_plane_prepare_fb(struct drm_plane *plane,
 }
 
 static void omap_plane_cleanup_fb(struct drm_plane *plane,
-				  const struct drm_plane_state *old_state)
+				  struct drm_plane_state *old_state)
 {
 	if (old_state->fb)
 		omap_framebuffer_unpin(old_state->fb);
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 31744fe99b38..b382d4d8d293 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -567,7 +567,7 @@ static void vop_plane_destroy(struct drm_plane *plane)
 }
 
 static int vop_plane_prepare_fb(struct drm_plane *plane,
-				const struct drm_plane_state *new_state)
+				struct drm_plane_state *new_state)
 {
 	if (plane->state->fb)
 		drm_framebuffer_reference(plane->state->fb);
@@ -576,7 +576,7 @@ static int vop_plane_prepare_fb(struct drm_plane *plane,
 }
 
 static void vop_plane_cleanup_fb(struct drm_plane *plane,
-				 const struct drm_plane_state *old_state)
+				 struct drm_plane_state *old_state)
 {
 	if (old_state->fb)
 		drm_framebuffer_unreference(old_state->fb);
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 8495bd01b544..a02730f90861 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -481,13 +481,13 @@ static const struct drm_plane_funcs tegra_primary_plane_funcs = {
 };
 
 static int tegra_plane_prepare_fb(struct drm_plane *plane,
-				  const struct drm_plane_state *new_state)
+				  struct drm_plane_state *new_state)
 {
 	return 0;
 }
 
 static void tegra_plane_cleanup_fb(struct drm_plane *plane,
-				   const struct drm_plane_state *old_fb)
+				   struct drm_plane_state *old_fb)
 {
 }
 
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index 686feec6b4c8..6c8d3dad66ec 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -855,7 +855,7 @@ struct drm_plane_helper_funcs {
 	 * everything else must complete successfully.
 	 */
 	int (*prepare_fb)(struct drm_plane *plane,
-			  const struct drm_plane_state *new_state);
+			  struct drm_plane_state *new_state);
 	/**
 	 * @cleanup_fb:
 	 *
@@ -866,7 +866,7 @@ struct drm_plane_helper_funcs {
 	 * transitional plane helpers, but it is optional.
 	 */
 	void (*cleanup_fb)(struct drm_plane *plane,
-			   const struct drm_plane_state *old_state);
+			   struct drm_plane_state *old_state);
 
 	/**
 	 * @atomic_check:
-- 
2.9.3

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