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smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2B71C1517 for ; Tue, 20 Jan 2026 06:47:47 -0800 (PST) Received: from e142607.local (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 6AE1C3F694 for ; Tue, 20 Jan 2026 06:47:53 -0800 (PST) Date: Tue, 20 Jan 2026 14:45:51 +0000 From: Liviu Dudau To: Maxime Ripard Cc: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, Dmitry Baryshkov , Tomi Valkeinen , Andrzej Hajda , Neil Armstrong , Robert Foss , Paul Cercueil , Thierry Reding , Mikko Perttunen , Jonathan Hunter , Dave Stevenson , Rodrigo Siqueira , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , =?utf-8?B?TWHDrXJh?= Canal , Raspberry Pi Kernel Maintenance , amd-gfx@lists.freedesktop.org, linux-mips@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org Subject: Re: [PATCH v3 15/15] drm/atomic: Remove state argument to drm_atomic_private_obj_init Message-ID: References: <20260119-drm-private-obj-reset-v3-0-b931abe3a5e3@redhat.com> <20260119-drm-private-obj-reset-v3-15-b931abe3a5e3@redhat.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260119-drm-private-obj-reset-v3-15-b931abe3a5e3@redhat.com> On Mon, Jan 19, 2026 at 01:50:11PM +0100, Maxime Ripard wrote: > Now that all drm_private_objs users have been converted to use > atomic_create_state instead of the old ad-hoc initialization, we can > remove the state parameter from drm_private_obj_init and the fallback > code. > > Reviewed-by: Dmitry Baryshkov > Reviewed-by: Tomi Valkeinen > Signed-off-by: Maxime Ripard > --- > > To: Liviu Dudau > To: Andrzej Hajda > To: Neil Armstrong > To: Robert Foss > To: Paul Cercueil > To: Tomi Valkeinen > To: Thierry Reding > To: Mikko Perttunen > To: Jonathan Hunter > To: Dave Stevenson > Cc: Rodrigo Siqueira > Cc: Laurent Pinchart > Cc: Jonas Karlman > Cc: Jernej Skrabec > Cc: Abhinav Kumar > Cc: Jessica Zhang > Cc: Sean Paul > Cc: Marijn Suijten > Cc: "Maíra Canal" > Cc: Raspberry Pi Kernel Maintenance > Cc: amd-gfx@lists.freedesktop.org > Cc: linux-mips@vger.kernel.org > Cc: linux-arm-msm@vger.kernel.org > Cc: freedreno@lists.freedesktop.org > Cc: linux-tegra@vger.kernel.org > --- > drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 - > .../drm/arm/display/komeda/komeda_private_obj.c | 16 ++++++++-------- For the komeda part: Reviewed-by: Liviu Dudau Best regards, Liviu > drivers/gpu/drm/display/drm_dp_mst_topology.c | 1 - > drivers/gpu/drm/display/drm_dp_tunnel.c | 2 +- > drivers/gpu/drm/drm_atomic.c | 22 +++++----------------- > drivers/gpu/drm/drm_bridge.c | 1 - > drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 +- > drivers/gpu/drm/ingenic/ingenic-ipu.c | 2 +- > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 1 - > drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 1 - > drivers/gpu/drm/omapdrm/omap_drv.c | 2 +- > drivers/gpu/drm/tegra/hub.c | 2 +- > drivers/gpu/drm/vc4/vc4_kms.c | 4 +--- > include/drm/drm_atomic.h | 1 - > 14 files changed, 19 insertions(+), 39 deletions(-) > > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > index a97e1bf1bfdc6384a6ac83f907878807bb3b62a0..cff3d00a367728449b4a4de4cc9f3c9036e3924f 100644 > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c > @@ -4932,11 +4932,10 @@ static int amdgpu_dm_mode_config_init(struct amdgpu_device *adev) > /* indicates support for immediate flip */ > adev_to_drm(adev)->mode_config.async_page_flip = true; > > drm_atomic_private_obj_init(adev_to_drm(adev), > &adev->dm.atomic_obj, > - NULL, > &dm_atomic_state_funcs); > > r = amdgpu_display_modeset_create_props(adev); > if (r) > return r; > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > index 4994b69c6595637ea832b97629b052e3aea97ee7..6270e5c525db221267b1215a27653ace578eeb0a 100644 > --- a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c > @@ -63,11 +63,11 @@ static const struct drm_private_state_funcs komeda_layer_obj_funcs = { > }; > > static int komeda_layer_obj_add(struct komeda_kms_dev *kms, > struct komeda_layer *layer) > { > - drm_atomic_private_obj_init(&kms->base, &layer->base.obj, NULL, > + drm_atomic_private_obj_init(&kms->base, &layer->base.obj, > &komeda_layer_obj_funcs); > return 0; > } > > static struct drm_private_state * > @@ -116,11 +116,11 @@ static const struct drm_private_state_funcs komeda_scaler_obj_funcs = { > > static int komeda_scaler_obj_add(struct komeda_kms_dev *kms, > struct komeda_scaler *scaler) > { > drm_atomic_private_obj_init(&kms->base, > - &scaler->base.obj, NULL, > + &scaler->base.obj, > &komeda_scaler_obj_funcs); > return 0; > } > > static struct drm_private_state * > @@ -168,11 +168,11 @@ static const struct drm_private_state_funcs komeda_compiz_obj_funcs = { > }; > > static int komeda_compiz_obj_add(struct komeda_kms_dev *kms, > struct komeda_compiz *compiz) > { > - drm_atomic_private_obj_init(&kms->base, &compiz->base.obj, NULL, > + drm_atomic_private_obj_init(&kms->base, &compiz->base.obj, > &komeda_compiz_obj_funcs); > > return 0; > } > > @@ -222,11 +222,11 @@ static const struct drm_private_state_funcs komeda_splitter_obj_funcs = { > > static int komeda_splitter_obj_add(struct komeda_kms_dev *kms, > struct komeda_splitter *splitter) > { > drm_atomic_private_obj_init(&kms->base, > - &splitter->base.obj, NULL, > + &splitter->base.obj, > &komeda_splitter_obj_funcs); > > return 0; > } > > @@ -275,11 +275,11 @@ static const struct drm_private_state_funcs komeda_merger_obj_funcs = { > > static int komeda_merger_obj_add(struct komeda_kms_dev *kms, > struct komeda_merger *merger) > { > drm_atomic_private_obj_init(&kms->base, > - &merger->base.obj, NULL, > + &merger->base.obj, > &komeda_merger_obj_funcs); > > return 0; > } > > @@ -328,11 +328,11 @@ static const struct drm_private_state_funcs komeda_improc_obj_funcs = { > }; > > static int komeda_improc_obj_add(struct komeda_kms_dev *kms, > struct komeda_improc *improc) > { > - drm_atomic_private_obj_init(&kms->base, &improc->base.obj, NULL, > + drm_atomic_private_obj_init(&kms->base, &improc->base.obj, > &komeda_improc_obj_funcs); > > return 0; > } > > @@ -381,11 +381,11 @@ static const struct drm_private_state_funcs komeda_timing_ctrlr_obj_funcs = { > }; > > static int komeda_timing_ctrlr_obj_add(struct komeda_kms_dev *kms, > struct komeda_timing_ctrlr *ctrlr) > { > - drm_atomic_private_obj_init(&kms->base, &ctrlr->base.obj, NULL, > + drm_atomic_private_obj_init(&kms->base, &ctrlr->base.obj, > &komeda_timing_ctrlr_obj_funcs); > > return 0; > } > > @@ -435,11 +435,11 @@ static const struct drm_private_state_funcs komeda_pipeline_obj_funcs = { > }; > > static int komeda_pipeline_obj_add(struct komeda_kms_dev *kms, > struct komeda_pipeline *pipe) > { > - drm_atomic_private_obj_init(&kms->base, &pipe->obj, NULL, > + drm_atomic_private_obj_init(&kms->base, &pipe->obj, > &komeda_pipeline_obj_funcs); > > return 0; > } > > diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c > index 1ab0233a2a18f784d8c43e61b94e40a06bd4baf6..7e0e5b90df7251beed6985e16d1c3270ddfb3f37 100644 > --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c > +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c > @@ -5763,11 +5763,10 @@ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, > mgr->max_dpcd_transaction_bytes = max_dpcd_transaction_bytes; > mgr->max_payloads = max_payloads; > mgr->conn_base_id = conn_base_id; > > drm_atomic_private_obj_init(dev, &mgr->base, > - NULL, > &drm_dp_mst_topology_state_funcs); > > return 0; > } > EXPORT_SYMBOL(drm_dp_mst_topology_mgr_init); > diff --git a/drivers/gpu/drm/display/drm_dp_tunnel.c b/drivers/gpu/drm/display/drm_dp_tunnel.c > index 2abd714efd19f27697770813b38194e384be87ce..241498cef7de497afdf2837f750113743c001240 100644 > --- a/drivers/gpu/drm/display/drm_dp_tunnel.c > +++ b/drivers/gpu/drm/display/drm_dp_tunnel.c > @@ -1598,11 +1598,11 @@ static bool init_group(struct drm_dp_tunnel_mgr *mgr, struct drm_dp_tunnel_group > { > group->mgr = mgr; > group->available_bw = -1; > INIT_LIST_HEAD(&group->tunnels); > > - drm_atomic_private_obj_init(mgr->dev, &group->base, NULL, > + drm_atomic_private_obj_init(mgr->dev, &group->base, > &tunnel_group_funcs); > > return true; > } > > diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c > index e3029c8f02e5a3698781117bcc80eff98407cf16..243579fa1c756cd2eda660ad658cb49d67106584 100644 > --- a/drivers/gpu/drm/drm_atomic.c > +++ b/drivers/gpu/drm/drm_atomic.c > @@ -919,11 +919,10 @@ static void drm_atomic_plane_print_state(struct drm_printer *p, > > /** > * drm_atomic_private_obj_init - initialize private object > * @dev: DRM device this object will be attached to > * @obj: private object > - * @state: initial private object state > * @funcs: pointer to the struct of function pointers that identify the object > * type > * > * Initialize the private object, which can be embedded into any > * driver private object that needs its own atomic state. > @@ -931,37 +930,26 @@ static void drm_atomic_plane_print_state(struct drm_printer *p, > * RETURNS: > * Zero on success, error code on failure > */ > int drm_atomic_private_obj_init(struct drm_device *dev, > struct drm_private_obj *obj, > - struct drm_private_state *state, > const struct drm_private_state_funcs *funcs) > { > + struct drm_private_state *state; > memset(obj, 0, sizeof(*obj)); > > drm_modeset_lock_init(&obj->lock); > > obj->dev = dev; > obj->funcs = funcs; > list_add_tail(&obj->head, &dev->mode_config.privobj_list); > > - /* > - * Not all users of drm_atomic_private_obj_init have been > - * converted to using &drm_private_obj_funcs.atomic_create_state yet. > - * For the time being, let's only call reset if the passed state is > - * NULL. Otherwise, we will fallback to the previous behaviour. > - */ > - if (!state) { > - state = obj->funcs->atomic_create_state(obj); > - if (IS_ERR(state)) > - return PTR_ERR(state); > + state = obj->funcs->atomic_create_state(obj); > + if (IS_ERR(state)) > + return PTR_ERR(state); > > - obj->state = state; > - } else { > - obj->state = state; > - state->obj = obj; > - } > + obj->state = state; > > return 0; > } > EXPORT_SYMBOL(drm_atomic_private_obj_init); > > diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c > index 316cf84519de54c4dc4bfb3bc3addc4990a200f5..4b120751605e15e0d07ebe1d4a7324c0ccfc34dd 100644 > --- a/drivers/gpu/drm/drm_bridge.c > +++ b/drivers/gpu/drm/drm_bridge.c > @@ -553,11 +553,10 @@ int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge, > goto err_reset_bridge; > } > > if (drm_bridge_is_atomic(bridge)) > drm_atomic_private_obj_init(bridge->dev, &bridge->base, > - NULL, > &drm_bridge_priv_state_funcs); > > return 0; > > err_reset_bridge: > diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > index 862691991ed2770d30342bf531e828e34bd7080a..e6b003c16e63609180881b1d3b0c7acbd5218ada 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c > @@ -1399,11 +1399,11 @@ static int ingenic_drm_bind(struct device *dev, bool has_components) > if (ret) { > dev_err(dev, "Unable to register clock notifier\n"); > goto err_devclk_disable; > } > > - drm_atomic_private_obj_init(drm, &priv->private_obj, NULL, > + drm_atomic_private_obj_init(drm, &priv->private_obj, > &ingenic_drm_private_state_funcs); > > ret = drmm_add_action_or_reset(drm, ingenic_drm_atomic_private_obj_fini, > &priv->private_obj); > if (ret) > diff --git a/drivers/gpu/drm/ingenic/ingenic-ipu.c b/drivers/gpu/drm/ingenic/ingenic-ipu.c > index 253a1ce30997308547b61339468d52e6875785d3..635ef2b1efa57556f32fded612f0ff1068e23e8c 100644 > --- a/drivers/gpu/drm/ingenic/ingenic-ipu.c > +++ b/drivers/gpu/drm/ingenic/ingenic-ipu.c > @@ -899,11 +899,11 @@ static int ingenic_ipu_bind(struct device *dev, struct device *master, void *d) > if (err) { > dev_err(dev, "Unable to prepare clock\n"); > return err; > } > > - drm_atomic_private_obj_init(drm, &ipu->private_obj, NULL, > + drm_atomic_private_obj_init(drm, &ipu->private_obj, > &ingenic_ipu_private_state_funcs); > > return 0; > } > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > index e33995a9522d2a9e8d0627069f7b5f44902278de..e52fd6b79c614a67d910e404efc24be014ec8f5e 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > @@ -1159,11 +1159,10 @@ static int dpu_kms_hw_init(struct msm_kms *kms) > > dev->mode_config.cursor_width = 512; > dev->mode_config.cursor_height = 512; > > drm_atomic_private_obj_init(dpu_kms->dev, &dpu_kms->global_state, > - NULL, > &dpu_kms_global_state_funcs); > > atomic_set(&dpu_kms->bandwidth_ref, 0); > > rc = pm_runtime_resume_and_get(&dpu_kms->pdev->dev); > diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c > index 1fc9671590762b800bdeb6cd440b1ae6ee634679..c41bb03e5b96a162340b886d32656dfe4b0d1a99 100644 > --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c > +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c > @@ -715,11 +715,10 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) > int ret; > > mdp5_kms->dev = dev; > > drm_atomic_private_obj_init(mdp5_kms->dev, &mdp5_kms->glob_state, > - NULL, > &mdp5_global_state_funcs); > > /* we need to set a default rate before enabling. Set a safe > * rate first, then figure out hw revision, and then set a > * more optimal rate: > diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c > index febee3fea01dd40faec7d631279b1393a17822ba..27de798026365f710b78306a7ec2a72ddff20828 100644 > --- a/drivers/gpu/drm/omapdrm/omap_drv.c > +++ b/drivers/gpu/drm/omapdrm/omap_drv.c > @@ -297,11 +297,11 @@ static const struct drm_private_state_funcs omap_global_state_funcs = { > > static int omap_global_obj_init(struct drm_device *dev) > { > struct omap_drm_private *priv = dev->dev_private; > > - drm_atomic_private_obj_init(dev, &priv->glob_obj, NULL, > + drm_atomic_private_obj_init(dev, &priv->glob_obj, > &omap_global_state_funcs); > return 0; > } > > static void omap_global_obj_fini(struct omap_drm_private *priv) > diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c > index e8cc4382532fffaea99020755ad78d3252613c26..5c7fd36aaadc405b9dae0acb1e8b4f12f12c84bd 100644 > --- a/drivers/gpu/drm/tegra/hub.c > +++ b/drivers/gpu/drm/tegra/hub.c > @@ -955,11 +955,11 @@ static int tegra_display_hub_init(struct host1x_client *client) > { > struct tegra_display_hub *hub = to_tegra_display_hub(client); > struct drm_device *drm = dev_get_drvdata(client->host); > struct tegra_drm *tegra = drm->dev_private; > > - drm_atomic_private_obj_init(drm, &hub->base, NULL, > + drm_atomic_private_obj_init(drm, &hub->base, > &tegra_display_hub_state_funcs); > > tegra->hub = hub; > > return 0; > diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c > index f82c7ea1d74eeaa075296533a1ffe3561f197748..8f60e9e98380984a0de7c9243c5ba703316d0c13 100644 > --- a/drivers/gpu/drm/vc4/vc4_kms.c > +++ b/drivers/gpu/drm/vc4/vc4_kms.c > @@ -114,11 +114,11 @@ static void vc4_ctm_obj_fini(struct drm_device *dev, void *unused) > > static int vc4_ctm_obj_init(struct vc4_dev *vc4) > { > drm_modeset_lock_init(&vc4->ctm_state_lock); > > - drm_atomic_private_obj_init(&vc4->base, &vc4->ctm_manager, NULL, > + drm_atomic_private_obj_init(&vc4->base, &vc4->ctm_manager, > &vc4_ctm_state_funcs); > > return drmm_add_action_or_reset(&vc4->base, vc4_ctm_obj_fini, NULL); > } > > @@ -755,11 +755,10 @@ static void vc4_load_tracker_obj_fini(struct drm_device *dev, void *unused) > } > > static int vc4_load_tracker_obj_init(struct vc4_dev *vc4) > { > drm_atomic_private_obj_init(&vc4->base, &vc4->load_tracker, > - NULL, > &vc4_load_tracker_state_funcs); > > return drmm_add_action_or_reset(&vc4->base, vc4_load_tracker_obj_fini, NULL); > } > > @@ -847,11 +846,10 @@ static void vc4_hvs_channels_obj_fini(struct drm_device *dev, void *unused) > } > > static int vc4_hvs_channels_obj_init(struct vc4_dev *vc4) > { > drm_atomic_private_obj_init(&vc4->base, &vc4->hvs_channels, > - NULL, > &vc4_hvs_state_funcs); > > return drmm_add_action_or_reset(&vc4->base, vc4_hvs_channels_obj_fini, NULL); > } > > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h > index 0b1b32bcd2bda1b92299fd369ba7c23b1c2d3dfa..f03cd199aee73fa8e15b2d9e16a53d134fc7de7d 100644 > --- a/include/drm/drm_atomic.h > +++ b/include/drm/drm_atomic.h > @@ -736,11 +736,10 @@ struct drm_connector_state * __must_check > drm_atomic_get_connector_state(struct drm_atomic_state *state, > struct drm_connector *connector); > > int drm_atomic_private_obj_init(struct drm_device *dev, > struct drm_private_obj *obj, > - struct drm_private_state *state, > const struct drm_private_state_funcs *funcs); > void drm_atomic_private_obj_fini(struct drm_private_obj *obj); > > struct drm_private_state * __must_check > drm_atomic_get_private_obj_state(struct drm_atomic_state *state, > > -- > 2.52.0 >