openwrt/target/linux/bcm27xx/patches-5.10/950-0409-drm-atomic-Pass-the-full-state-to-CRTC-atomic_check.patch

From 27a4cd3c9986626cc731282e2e4887121f72f5f7 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Wed, 28 Oct 2020 13:32:21 +0100
Subject: [PATCH] drm/atomic: Pass the full state to CRTC atomic_check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Commit 29b77ad7b9ca8c87152a1a9e8188970fb2a93df4 upstream.

The current atomic helpers have either their object state being passed as
an argument or the full atomic state.

The former is the pattern that was done at first, before switching to the
latter for new hooks or when it was needed.

Let's start convert all the remaining helpers to provide a consistent
interface, starting with the CRTC's atomic_check.

The conversion was done using the coccinelle script below,
built tested on all the drivers and actually tested on vc4.

virtual report

@@
struct drm_crtc_helper_funcs *FUNCS;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
identifier dev, state;
identifier ret, f;
@@

 f(struct drm_device *dev, struct drm_atomic_state *state)
 {
	<...
-	ret = FUNCS->atomic_check(crtc, crtc_state);
+	ret = FUNCS->atomic_check(crtc, state);
	...>
 }

@@
identifier crtc, new_state;
@@

 struct drm_crtc_helper_funcs {
 	...
-	int (*atomic_check)(struct drm_crtc *crtc, struct drm_crtc_state *new_state);
+	int (*atomic_check)(struct drm_crtc *crtc, struct drm_atomic_state *state);
 	...
}

@ crtc_atomic_func @
identifier helpers;
identifier func;
@@

static struct drm_crtc_helper_funcs helpers = {
	...,
	.atomic_check = func,
	...,
};

@ ignores_new_state @
identifier crtc_atomic_func.func;
identifier crtc, new_state;
@@

 int func(struct drm_crtc *crtc,
		struct drm_crtc_state *new_state)
 {
	... when != new_state
 }

@ adds_new_state depends on crtc_atomic_func && !ignores_new_state @
identifier crtc_atomic_func.func;
identifier crtc, new_state;
@@

 int func(struct drm_crtc *crtc, struct drm_crtc_state *new_state)
 {
+	struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state, crtc);
 	...
 }

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
expression E;
type T;
@@

 int func(...)
 {
	...
-	T state = E;
+	T crtc_state = E;
 	<+...
-	state
+	crtc_state
 	...+>
 }

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
type T;
@@

 int func(...)
 {
 	...
-	T state;
+	T crtc_state;
 	<+...
-	state
+	crtc_state
 	...+>
 }

@ depends on crtc_atomic_func @
identifier crtc_atomic_func.func;
identifier new_state;
identifier crtc;
@@

 int func(struct drm_crtc *crtc,
-	       struct drm_crtc_state *new_state
+	       struct drm_atomic_state *state
	       )
 { ... }

@@
identifier new_state;
identifier crtc;
@@

 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
-                             struct drm_crtc_state *new_state
+                             struct drm_atomic_state *state
               )
 {
+       struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state, crtc);
	...
 }

@@
identifier new_state;
identifier crtc;
@@

 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
-                             struct drm_crtc_state *new_state
+                             struct drm_atomic_state *state
               );

@ include depends on adds_new_state @
@@

 #include <drm/drm_atomic.h>

@ no_include depends on !include && adds_new_state @
@@

+ #include <drm/drm_atomic.h>
  #include <drm/...>

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201028123222.1732139-1-maxime@cerno.tech
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 14 ++++++-----
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  | 10 ++++----
 drivers/gpu/drm/arm/malidp_crtc.c             | 20 ++++++++--------
 drivers/gpu/drm/armada/armada_crtc.c          | 10 ++++----
 drivers/gpu/drm/ast/ast_mode.c                | 12 ++++++----
 .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c    |  3 ++-
 drivers/gpu/drm/drm_atomic_helper.c           |  2 +-
 drivers/gpu/drm/drm_simple_kms_helper.c       | 10 ++++----
 drivers/gpu/drm/exynos/exynos_drm_crtc.c      |  8 ++++---
 drivers/gpu/drm/imx/ipuv3-crtc.c              |  6 +++--
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c     | 15 ++++++++----
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c      | 23 +++++++++++--------
 drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c     |  2 +-
 drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c     | 13 +++++++----
 drivers/gpu/drm/mxsfb/mxsfb_kms.c             | 10 ++++----
 drivers/gpu/drm/nouveau/dispnv50/head.c       |  7 ++++--
 drivers/gpu/drm/omapdrm/omap_crtc.c           | 13 +++++++----
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c        | 11 +++++----
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c   |  4 +++-
 drivers/gpu/drm/sun4i/sun4i_crtc.c            |  7 ++++--
 drivers/gpu/drm/tidss/tidss_crtc.c            | 10 ++++----
 drivers/gpu/drm/tilcdc/tilcdc_crtc.c          | 12 ++++++----
 drivers/gpu/drm/vc4/vc4_crtc.c                | 11 +++++----
 drivers/gpu/drm/vc4/vc4_txp.c                 | 10 ++++----
 drivers/gpu/drm/virtio/virtgpu_display.c      |  2 +-
 drivers/gpu/drm/vkms/vkms_crtc.c              | 16 +++++++------
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c           |  4 +++-
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.h           |  2 +-
 drivers/gpu/drm/xlnx/zynqmp_disp.c            |  6 +++--
 include/drm/drm_modeset_helper_vtables.h      |  5 ++--
 30 files changed, 168 insertions(+), 110 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5639,17 +5639,19 @@ static void dm_update_crtc_active_planes
 }
 
 static int dm_crtc_helper_atomic_check(struct drm_crtc *crtc,
-				       struct drm_crtc_state *state)
+				       struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
 	struct dc *dc = adev->dm.dc;
-	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(state);
+	struct dm_crtc_state *dm_crtc_state = to_dm_crtc_state(crtc_state);
 	int ret = -EINVAL;
 
-	dm_update_crtc_active_planes(crtc, state);
+	dm_update_crtc_active_planes(crtc, crtc_state);
 
 	if (unlikely(!dm_crtc_state->stream &&
-		     modeset_required(state, NULL, dm_crtc_state->stream))) {
+		     modeset_required(crtc_state, NULL, dm_crtc_state->stream))) {
 		WARN_ON(1);
 		return ret;
 	}
@@ -5660,8 +5662,8 @@ static int dm_crtc_helper_atomic_check(s
 	 * planes are disabled, which is not supported by the hardware. And there is legacy
 	 * userspace which stops using the HW cursor altogether in response to the resulting EINVAL.
 	 */
-	if (state->enable &&
-	    !(state->plane_mask & drm_plane_mask(crtc->primary)))
+	if (crtc_state->enable &&
+	    !(crtc_state->plane_mask & drm_plane_mask(crtc->primary)))
 		return -EINVAL;
 
 	/* In some use cases, like reset, no stream is attached */
--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
@@ -74,16 +74,18 @@ static void komeda_crtc_update_clock_rat
  */
 static int
 komeda_crtc_atomic_check(struct drm_crtc *crtc,
-			 struct drm_crtc_state *state)
+			 struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct komeda_crtc *kcrtc = to_kcrtc(crtc);
-	struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(state);
+	struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_state);
 	int err;
 
-	if (drm_atomic_crtc_needs_modeset(state))
+	if (drm_atomic_crtc_needs_modeset(crtc_state))
 		komeda_crtc_update_clock_ratio(kcrtc_st);
 
-	if (state->active) {
+	if (crtc_state->active) {
 		err = komeda_build_display_data_flow(kcrtc, kcrtc_st);
 		if (err)
 			return err;
--- a/drivers/gpu/drm/arm/malidp_crtc.c
+++ b/drivers/gpu/drm/arm/malidp_crtc.c
@@ -337,8 +337,10 @@ mclk_calc:
 }
 
 static int malidp_crtc_atomic_check(struct drm_crtc *crtc,
-				    struct drm_crtc_state *state)
+				    struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct malidp_drm *malidp = crtc_to_malidp_device(crtc);
 	struct malidp_hw_device *hwdev = malidp->dev;
 	struct drm_plane *plane;
@@ -373,7 +375,7 @@ static int malidp_crtc_atomic_check(stru
 	 */
 
 	/* first count the number of rotated planes */
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
+	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
 		struct drm_framebuffer *fb = pstate->fb;
 
 		if ((pstate->rotation & MALIDP_ROTATED_MASK) || fb->modifier)
@@ -389,7 +391,7 @@ static int malidp_crtc_atomic_check(stru
 		rot_mem_free += hwdev->rotation_memory[1];
 
 	/* now validate the rotation memory requirements */
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
+	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
 		struct malidp_plane *mp = to_malidp_plane(plane);
 		struct malidp_plane_state *ms = to_malidp_plane_state(pstate);
 		struct drm_framebuffer *fb = pstate->fb;
@@ -417,18 +419,18 @@ static int malidp_crtc_atomic_check(stru
 	}
 
 	/* If only the writeback routing has changed, we don't need a modeset */
-	if (state->connectors_changed) {
+	if (crtc_state->connectors_changed) {
 		u32 old_mask = crtc->state->connector_mask;
-		u32 new_mask = state->connector_mask;
+		u32 new_mask = crtc_state->connector_mask;
 
 		if ((old_mask ^ new_mask) ==
 		    (1 << drm_connector_index(&malidp->mw_connector.base)))
-			state->connectors_changed = false;
+			crtc_state->connectors_changed = false;
 	}
 
-	ret = malidp_crtc_atomic_check_gamma(crtc, state);
-	ret = ret ? ret : malidp_crtc_atomic_check_ctm(crtc, state);
-	ret = ret ? ret : malidp_crtc_atomic_check_scaling(crtc, state);
+	ret = malidp_crtc_atomic_check_gamma(crtc, crtc_state);
+	ret = ret ? ret : malidp_crtc_atomic_check_ctm(crtc, crtc_state);
+	ret = ret ? ret : malidp_crtc_atomic_check_scaling(crtc, crtc_state);
 
 	return ret;
 }
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -413,15 +413,17 @@ static void armada_drm_crtc_mode_set_nof
 }
 
 static int armada_drm_crtc_atomic_check(struct drm_crtc *crtc,
-					struct drm_crtc_state *state)
+					struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
 
-	if (state->gamma_lut && drm_color_lut_size(state->gamma_lut) != 256)
+	if (crtc_state->gamma_lut && drm_color_lut_size(crtc_state->gamma_lut) != 256)
 		return -EINVAL;
 
-	if (state->color_mgmt_changed)
-		state->planes_changed = true;
+	if (crtc_state->color_mgmt_changed)
+		crtc_state->planes_changed = true;
 
 	return 0;
 }
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -751,24 +751,26 @@ static void ast_crtc_dpms(struct drm_crt
 }
 
 static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
-					struct drm_crtc_state *state)
+					struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct drm_device *dev = crtc->dev;
 	struct ast_crtc_state *ast_state;
 	const struct drm_format_info *format;
 	bool succ;
 
-	if (!state->enable)
+	if (!crtc_state->enable)
 		return 0; /* no mode checks if CRTC is being disabled */
 
-	ast_state = to_ast_crtc_state(state);
+	ast_state = to_ast_crtc_state(crtc_state);
 
 	format = ast_state->format;
 	if (drm_WARN_ON_ONCE(dev, !format))
 		return -EINVAL; /* BUG: We didn't set format in primary check(). */
 
-	succ = ast_get_vbios_mode_info(format, &state->mode,
-				       &state->adjusted_mode,
+	succ = ast_get_vbios_mode_info(format, &crtc_state->mode,
+				       &crtc_state->adjusted_mode,
 				       &ast_state->vbios_mode_info);
 	if (!succ)
 		return -EINVAL;
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
@@ -325,8 +325,9 @@ static int atmel_hlcdc_crtc_select_outpu
 }
 
 static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
-					 struct drm_crtc_state *s)
+					 struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *s = drm_atomic_get_new_crtc_state(state, c);
 	int ret;
 
 	ret = atmel_hlcdc_crtc_select_output_mode(s);
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -918,7 +918,7 @@ drm_atomic_helper_check_planes(struct dr
 		if (!funcs || !funcs->atomic_check)
 			continue;
 
-		ret = funcs->atomic_check(crtc, new_crtc_state);
+		ret = funcs->atomic_check(crtc, state);
 		if (ret) {
 			DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic driver check failed\n",
 					 crtc->base.id, crtc->name);
--- a/drivers/gpu/drm/drm_simple_kms_helper.c
+++ b/drivers/gpu/drm/drm_simple_kms_helper.c
@@ -86,16 +86,18 @@ drm_simple_kms_crtc_mode_valid(struct dr
 }
 
 static int drm_simple_kms_crtc_check(struct drm_crtc *crtc,
-				     struct drm_crtc_state *state)
+				     struct drm_atomic_state *state)
 {
-	bool has_primary = state->plane_mask &
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	bool has_primary = crtc_state->plane_mask &
 			   drm_plane_mask(crtc->primary);
 
 	/* We always want to have an active plane with an active CRTC */
-	if (has_primary != state->enable)
+	if (has_primary != crtc_state->enable)
 		return -EINVAL;
 
-	return drm_atomic_add_affected_planes(state->state, crtc);
+	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
 }
 
 static void drm_simple_kms_crtc_enable(struct drm_crtc *crtc,
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -49,15 +49,17 @@ static void exynos_drm_crtc_atomic_disab
 }
 
 static int exynos_crtc_atomic_check(struct drm_crtc *crtc,
-				     struct drm_crtc_state *state)
+				     struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
-	if (!state->enable)
+	if (!crtc_state->enable)
 		return 0;
 
 	if (exynos_crtc->ops->atomic_check)
-		return exynos_crtc->ops->atomic_check(exynos_crtc, state);
+		return exynos_crtc->ops->atomic_check(exynos_crtc, crtc_state);
 
 	return 0;
 }
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -227,11 +227,13 @@ static bool ipu_crtc_mode_fixup(struct d
 }
 
 static int ipu_crtc_atomic_check(struct drm_crtc *crtc,
-				 struct drm_crtc_state *state)
+				 struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	u32 primary_plane_mask = drm_plane_mask(crtc->primary);
 
-	if (state->active && (primary_plane_mask & state->plane_mask) == 0)
+	if (crtc_state->active && (primary_plane_mask & crtc_state->plane_mask) == 0)
 		return -EINVAL;
 
 	return 0;
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -234,22 +234,27 @@ static void ingenic_drm_crtc_update_timi
 }
 
 static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
-					 struct drm_crtc_state *state)
+					 struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
 	struct drm_plane_state *f1_state, *f0_state, *ipu_state = NULL;
 
-	if (drm_atomic_crtc_needs_modeset(state) && priv->soc_info->has_osd) {
-		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
+	if (drm_atomic_crtc_needs_modeset(crtc_state) && priv->soc_info->has_osd) {
+		f1_state = drm_atomic_get_plane_state(crtc_state->state,
+						      &priv->f1);
 		if (IS_ERR(f1_state))
 			return PTR_ERR(f1_state);
 
-		f0_state = drm_atomic_get_plane_state(state->state, &priv->f0);
+		f0_state = drm_atomic_get_plane_state(crtc_state->state,
+						      &priv->f0);
 		if (IS_ERR(f0_state))
 			return PTR_ERR(f0_state);
 
 		if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && priv->ipu_plane) {
-			ipu_state = drm_atomic_get_plane_state(state->state, priv->ipu_plane);
+			ipu_state = drm_atomic_get_plane_state(crtc_state->state,
+							       priv->ipu_plane);
 			if (IS_ERR(ipu_state))
 				return PTR_ERR(ipu_state);
 
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -815,10 +815,12 @@ struct plane_state {
 };
 
 static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
-		struct drm_crtc_state *state)
+		struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
-	struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
+	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc_state);
 	struct plane_state *pstates;
 
 	const struct drm_plane_state *pstate;
@@ -835,32 +837,33 @@ static int dpu_crtc_atomic_check(struct
 
 	pstates = kzalloc(sizeof(*pstates) * DPU_STAGE_MAX * 4, GFP_KERNEL);
 
-	if (!state->enable || !state->active) {
+	if (!crtc_state->enable || !crtc_state->active) {
 		DPU_DEBUG("crtc%d -> enable %d, active %d, skip atomic_check\n",
-				crtc->base.id, state->enable, state->active);
+				crtc->base.id, crtc_state->enable,
+				crtc_state->active);
 		goto end;
 	}
 
-	mode = &state->adjusted_mode;
+	mode = &crtc_state->adjusted_mode;
 	DPU_DEBUG("%s: check", dpu_crtc->name);
 
 	/* force a full mode set if active state changed */
-	if (state->active_changed)
-		state->mode_changed = true;
+	if (crtc_state->active_changed)
+		crtc_state->mode_changed = true;
 
 	memset(pipe_staged, 0, sizeof(pipe_staged));
 
 	if (cstate->num_mixers) {
 		mixer_width = mode->hdisplay / cstate->num_mixers;
 
-		_dpu_crtc_setup_lm_bounds(crtc, state);
+		_dpu_crtc_setup_lm_bounds(crtc, crtc_state);
 	}
 
 	crtc_rect.x2 = mode->hdisplay;
 	crtc_rect.y2 = mode->vdisplay;
 
 	 /* get plane state for all drm planes associated with crtc state */
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
+	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
 		struct drm_rect dst, clip = crtc_rect;
 
 		if (IS_ERR_OR_NULL(pstate)) {
@@ -966,7 +969,7 @@ static int dpu_crtc_atomic_check(struct
 
 	atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref);
 
-	rc = dpu_core_perf_crtc_check(crtc, state);
+	rc = dpu_core_perf_crtc_check(crtc, crtc_state);
 	if (rc) {
 		DPU_ERROR("crtc%d failed performance check %d\n",
 				crtc->base.id, rc);
--- a/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
+++ b/drivers/gpu/drm/msm/disp/mdp4/mdp4_crtc.c
@@ -307,7 +307,7 @@ static void mdp4_crtc_atomic_enable(stru
 }
 
 static int mdp4_crtc_atomic_check(struct drm_crtc *crtc,
-		struct drm_crtc_state *state)
+		struct drm_atomic_state *state)
 {
 	struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
 	DBG("%s: check", mdp4_crtc->name);
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c
@@ -7,6 +7,7 @@
 
 #include <linux/sort.h>
 
+#include <drm/drm_atomic.h>
 #include <drm/drm_mode.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_flip_work.h>
@@ -688,15 +689,17 @@ static enum mdp_mixer_stage_id get_start
 }
 
 static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
-		struct drm_crtc_state *state)
+		struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct mdp5_kms *mdp5_kms = get_kms(crtc);
 	struct drm_plane *plane;
 	struct drm_device *dev = crtc->dev;
 	struct plane_state pstates[STAGE_MAX + 1];
 	const struct mdp5_cfg_hw *hw_cfg;
 	const struct drm_plane_state *pstate;
-	const struct drm_display_mode *mode = &state->adjusted_mode;
+	const struct drm_display_mode *mode = &crtc_state->adjusted_mode;
 	bool cursor_plane = false;
 	bool need_right_mixer = false;
 	int cnt = 0, i;
@@ -705,7 +708,7 @@ static int mdp5_crtc_atomic_check(struct
 
 	DBG("%s: check", crtc->name);
 
-	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
+	drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) {
 		if (!pstate->visible)
 			continue;
 
@@ -737,7 +740,7 @@ static int mdp5_crtc_atomic_check(struct
 	if (mode->hdisplay > hw_cfg->lm.max_width)
 		need_right_mixer = true;
 
-	ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer);
+	ret = mdp5_crtc_setup_pipeline(crtc, crtc_state, need_right_mixer);
 	if (ret) {
 		DRM_DEV_ERROR(dev->dev, "couldn't assign mixers %d\n", ret);
 		return ret;
@@ -750,7 +753,7 @@ static int mdp5_crtc_atomic_check(struct
 	WARN_ON(cursor_plane &&
 		(pstates[cnt - 1].plane->type != DRM_PLANE_TYPE_CURSOR));
 
-	start = get_start_stage(crtc, state, &pstates[0].state->base);
+	start = get_start_stage(crtc, crtc_state, &pstates[0].state->base);
 
 	/* verify that there are not too many planes attached to crtc
 	 * and that we don't have conflicting mixer stages:
--- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c
@@ -310,17 +310,19 @@ static void mxsfb_crtc_mode_set_nofb(str
 }
 
 static int mxsfb_crtc_atomic_check(struct drm_crtc *crtc,
-				   struct drm_crtc_state *state)
+				   struct drm_atomic_state *state)
 {
-	bool has_primary = state->plane_mask &
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	bool has_primary = crtc_state->plane_mask &
 			   drm_plane_mask(crtc->primary);
 
 	/* The primary plane has to be enabled when the CRTC is active. */
-	if (state->active && !has_primary)
+	if (crtc_state->active && !has_primary)
 		return -EINVAL;
 
 	/* TODO: Is this needed ? */
-	return drm_atomic_add_affected_planes(state->state, crtc);
+	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
 }
 
 static void mxsfb_crtc_atomic_flush(struct drm_crtc *crtc,
--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -30,6 +30,7 @@
 #include <nvif/event.h>
 #include <nvif/cl0046.h>
 
+#include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_vblank.h>
@@ -315,12 +316,14 @@ nv50_head_atomic_check_mode(struct nv50_
 }
 
 static int
-nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
+nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct nouveau_drm *drm = nouveau_drm(crtc->dev);
 	struct nv50_head *head = nv50_head(crtc);
 	struct nv50_head_atom *armh = nv50_head_atom(crtc->state);
-	struct nv50_head_atom *asyh = nv50_head_atom(state);
+	struct nv50_head_atom *asyh = nv50_head_atom(crtc_state);
 	struct nouveau_conn_atom *asyc = NULL;
 	struct drm_connector_state *conns;
 	struct drm_connector *conn;
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -569,22 +569,25 @@ static bool omap_crtc_is_manually_update
 }
 
 static int omap_crtc_atomic_check(struct drm_crtc *crtc,
-				struct drm_crtc_state *state)
+				struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct drm_plane_state *pri_state;
 
-	if (state->color_mgmt_changed && state->gamma_lut) {
-		unsigned int length = state->gamma_lut->length /
+	if (crtc_state->color_mgmt_changed && crtc_state->gamma_lut) {
+		unsigned int length = crtc_state->gamma_lut->length /
 			sizeof(struct drm_color_lut);
 
 		if (length < 2)
 			return -EINVAL;
 	}
 
-	pri_state = drm_atomic_get_new_plane_state(state->state, crtc->primary);
+	pri_state = drm_atomic_get_new_plane_state(crtc_state->state,
+						   crtc->primary);
 	if (pri_state) {
 		struct omap_crtc_state *omap_crtc_state =
-			to_omap_crtc_state(state);
+			to_omap_crtc_state(crtc_state);
 
 		/* Mirror new values for zpos and rotation in omap_crtc_state */
 		omap_crtc_state->zpos = pri_state->zpos;
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -688,20 +688,23 @@ static void rcar_du_crtc_stop(struct rca
  */
 
 static int rcar_du_crtc_atomic_check(struct drm_crtc *crtc,
-				     struct drm_crtc_state *state)
+				     struct drm_atomic_state *state)
 {
-	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(state);
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(crtc_state);
 	struct drm_encoder *encoder;
 	int ret;
 
-	ret = rcar_du_cmm_check(crtc, state);
+	ret = rcar_du_cmm_check(crtc, crtc_state);
 	if (ret)
 		return ret;
 
 	/* Store the routes from the CRTC output to the DU outputs. */
 	rstate->outputs = 0;
 
-	drm_for_each_encoder_mask(encoder, crtc->dev, state->encoder_mask) {
+	drm_for_each_encoder_mask(encoder, crtc->dev,
+				  crtc_state->encoder_mask) {
 		struct rcar_du_encoder *renc;
 
 		/* Skip the writeback encoder. */
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1416,8 +1416,10 @@ static void vop_wait_for_irq_handler(str
 }
 
 static int vop_crtc_atomic_check(struct drm_crtc *crtc,
-				 struct drm_crtc_state *crtc_state)
+				 struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct vop *vop = to_vop(crtc);
 	struct drm_plane *plane;
 	struct drm_plane_state *plane_state;
--- a/drivers/gpu/drm/sun4i/sun4i_crtc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_crtc.c
@@ -15,6 +15,7 @@
 
 #include <video/videomode.h>
 
+#include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_modes.h>
@@ -45,14 +46,16 @@ static struct drm_encoder *sun4i_crtc_ge
 }
 
 static int sun4i_crtc_atomic_check(struct drm_crtc *crtc,
-				    struct drm_crtc_state *state)
+				    struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct sun4i_crtc *scrtc = drm_crtc_to_sun4i_crtc(crtc);
 	struct sunxi_engine *engine = scrtc->engine;
 	int ret = 0;
 
 	if (engine && engine->ops && engine->ops->atomic_check)
-		ret = engine->ops->atomic_check(engine, state);
+		ret = engine->ops->atomic_check(engine, crtc_state);
 
 	return ret;
 }
--- a/drivers/gpu/drm/tidss/tidss_crtc.c
+++ b/drivers/gpu/drm/tidss/tidss_crtc.c
@@ -85,8 +85,10 @@ void tidss_crtc_error_irq(struct drm_crt
 /* drm_crtc_helper_funcs */
 
 static int tidss_crtc_atomic_check(struct drm_crtc *crtc,
-				   struct drm_crtc_state *state)
+				   struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	struct drm_device *ddev = crtc->dev;
 	struct tidss_device *tidss = to_tidss(ddev);
 	struct dispc_device *dispc = tidss->dispc;
@@ -97,10 +99,10 @@ static int tidss_crtc_atomic_check(struc
 
 	dev_dbg(ddev->dev, "%s\n", __func__);
 
-	if (!state->enable)
+	if (!crtc_state->enable)
 		return 0;
 
-	mode = &state->adjusted_mode;
+	mode = &crtc_state->adjusted_mode;
 
 	ok = dispc_vp_mode_valid(dispc, hw_videoport, mode);
 	if (ok != MODE_OK) {
@@ -109,7 +111,7 @@ static int tidss_crtc_atomic_check(struc
 		return -EINVAL;
 	}
 
-	return dispc_vp_bus_check(dispc, hw_videoport, state);
+	return dispc_vp_bus_check(dispc, hw_videoport, crtc_state);
 }
 
 /*
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -669,15 +669,17 @@ static bool tilcdc_crtc_mode_fixup(struc
 }
 
 static int tilcdc_crtc_atomic_check(struct drm_crtc *crtc,
-				    struct drm_crtc_state *state)
+				    struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
 	/* If we are not active we don't care */
-	if (!state->active)
+	if (!crtc_state->active)
 		return 0;
 
-	if (state->state->planes[0].ptr != crtc->primary ||
-	    state->state->planes[0].state == NULL ||
-	    state->state->planes[0].state->crtc != crtc) {
+	if (crtc_state->state->planes[0].ptr != crtc->primary ||
+	    crtc_state->state->planes[0].state == NULL ||
+	    crtc_state->state->planes[0].state->crtc != crtc) {
 		dev_dbg(crtc->dev->dev, "CRTC primary plane must be present");
 		return -EINVAL;
 	}
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -601,18 +601,21 @@ void vc4_crtc_get_margins(struct drm_crt
 }
 
 static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
-				 struct drm_crtc_state *state)
+				 struct drm_atomic_state *state)
 {
-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
 	struct drm_connector *conn;
 	struct drm_connector_state *conn_state;
 	int ret, i;
 
-	ret = vc4_hvs_atomic_check(crtc, state);
+	ret = vc4_hvs_atomic_check(crtc, crtc_state);
 	if (ret)
 		return ret;
 
-	for_each_new_connector_in_state(state->state, conn, conn_state, i) {
+	for_each_new_connector_in_state(crtc_state->state, conn, conn_state,
+					i) {
 		if (conn_state->crtc != crtc)
 			continue;
 
--- a/drivers/gpu/drm/vc4/vc4_txp.c
+++ b/drivers/gpu/drm/vc4/vc4_txp.c
@@ -392,16 +392,18 @@ static const struct drm_crtc_funcs vc4_t
 };
 
 static int vc4_txp_atomic_check(struct drm_crtc *crtc,
-				struct drm_crtc_state *state)
+				struct drm_atomic_state *state)
 {
-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state);
 	int ret;
 
-	ret = vc4_hvs_atomic_check(crtc, state);
+	ret = vc4_hvs_atomic_check(crtc, crtc_state);
 	if (ret)
 		return ret;
 
-	state->no_vblank = true;
+	crtc_state->no_vblank = true;
 	vc4_state->feed_txp = true;
 
 	return 0;
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -111,7 +111,7 @@ static void virtio_gpu_crtc_atomic_disab
 }
 
 static int virtio_gpu_crtc_atomic_check(struct drm_crtc *crtc,
-					struct drm_crtc_state *state)
+					struct drm_atomic_state *state)
 {
 	return 0;
 }
--- a/drivers/gpu/drm/vkms/vkms_crtc.c
+++ b/drivers/gpu/drm/vkms/vkms_crtc.c
@@ -169,9 +169,11 @@ static const struct drm_crtc_funcs vkms_
 };
 
 static int vkms_crtc_atomic_check(struct drm_crtc *crtc,
-				  struct drm_crtc_state *state)
+				  struct drm_atomic_state *state)
 {
-	struct vkms_crtc_state *vkms_state = to_vkms_crtc_state(state);
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct vkms_crtc_state *vkms_state = to_vkms_crtc_state(crtc_state);
 	struct drm_plane *plane;
 	struct drm_plane_state *plane_state;
 	int i = 0, ret;
@@ -179,12 +181,12 @@ static int vkms_crtc_atomic_check(struct
 	if (vkms_state->active_planes)
 		return 0;
 
-	ret = drm_atomic_add_affected_planes(state->state, crtc);
+	ret = drm_atomic_add_affected_planes(crtc_state->state, crtc);
 	if (ret < 0)
 		return ret;
 
-	drm_for_each_plane_mask(plane, crtc->dev, state->plane_mask) {
-		plane_state = drm_atomic_get_existing_plane_state(state->state,
+	drm_for_each_plane_mask(plane, crtc->dev, crtc_state->plane_mask) {
+		plane_state = drm_atomic_get_existing_plane_state(crtc_state->state,
 								  plane);
 		WARN_ON(!plane_state);
 
@@ -200,8 +202,8 @@ static int vkms_crtc_atomic_check(struct
 	vkms_state->num_active_planes = i;
 
 	i = 0;
-	drm_for_each_plane_mask(plane, crtc->dev, state->plane_mask) {
-		plane_state = drm_atomic_get_existing_plane_state(state->state,
+	drm_for_each_plane_mask(plane, crtc->dev, crtc_state->plane_mask) {
+		plane_state = drm_atomic_get_existing_plane_state(crtc_state->state,
 								  plane);
 
 		if (!plane_state->visible)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -522,8 +522,10 @@ int vmw_du_cursor_plane_atomic_check(str
 
 
 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
-			     struct drm_crtc_state *new_state)
+			     struct drm_atomic_state *state)
 {
+	struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
+									 crtc);
 	struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
 	int connector_mask = drm_connector_mask(&du->connector);
 	bool has_primary = new_state->plane_mask &
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -473,7 +473,7 @@ void vmw_du_plane_unpin_surf(struct vmw_
 			     bool unreference);
 
 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
-			     struct drm_crtc_state *state);
+			     struct drm_atomic_state *state);
 void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
 			      struct drm_crtc_state *old_crtc_state);
 void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
--- a/drivers/gpu/drm/xlnx/zynqmp_disp.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c
@@ -1506,9 +1506,11 @@ zynqmp_disp_crtc_atomic_disable(struct d
 }
 
 static int zynqmp_disp_crtc_atomic_check(struct drm_crtc *crtc,
-					 struct drm_crtc_state *state)
+					 struct drm_atomic_state *state)
 {
-	return drm_atomic_add_affected_planes(state->state, crtc);
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	return drm_atomic_add_affected_planes(crtc_state->state, crtc);
 }
 
 static void
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -336,8 +336,7 @@ struct drm_crtc_helper_funcs {
 	 *
 	 * This function is called in the check phase of an atomic update. The
 	 * driver is not allowed to change anything outside of the free-standing
-	 * state objects passed-in or assembled in the overall &drm_atomic_state
-	 * update tracking structure.
+	 * state object passed-in.
 	 *
 	 * Also beware that userspace can request its own custom modes, neither
 	 * core nor helpers filter modes to the list of probe modes reported by
@@ -353,7 +352,7 @@ struct drm_crtc_helper_funcs {
 	 * deadlock.
 	 */
 	int (*atomic_check)(struct drm_crtc *crtc,
-			    struct drm_crtc_state *state);
+			    struct drm_atomic_state *state);
 
 	/**
 	 * @atomic_begin: