From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A301ECCA470 for ; Wed, 8 Oct 2025 12:04:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1107C10E320; Wed, 8 Oct 2025 12:04:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="C1dN5gPQ"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id C5CDB10E7F0 for ; Wed, 8 Oct 2025 12:04:37 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 391A361F7F; Wed, 8 Oct 2025 12:04:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D08FC4CEF4; Wed, 8 Oct 2025 12:04:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759925076; bh=6cr7a4Oi7nR6tykRdmPtBan+JL2S8tj3pWBBjqTArYI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=C1dN5gPQtSN5+wSct/4iBKoIFpTNWSRfn4VBvj7XK2wMqOPbXabGyw+EBmpvGLz91 FBieFScsrCURkmSfk4LDfQUKEsmMTjFbFlWHgdu5nKGOVAEvXVnEiSHsUY0+se6dLT +ZXd/P9ALDDvl47KXakccuRqRydIxgsjtxJ6qUwN2jOkCb1QPOrF6QgC2fB5w0vPud ZFQhykotiYrBLAF2w93BtNRU93cIxC8GOxHjXlScJ7Z4LgkOtRdv7wexufKXaA3AO5 c2CAGafNdCIfdAextzJNHo106qFYPZWBjeFZmnqCNYxD6qvzs/J5iNhnjPnIMmahP0 U7PKx7Qlylqxw== From: Maxime Ripard Date: Wed, 08 Oct 2025 14:04:06 +0200 Subject: [PATCH 08/16] drm/arm: komeda: Switch private_obj initialization to reset MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251008-drm-private-obj-reset-v1-8-805ab43ae65a@kernel.org> References: <20251008-drm-private-obj-reset-v1-0-805ab43ae65a@kernel.org> In-Reply-To: <20251008-drm-private-obj-reset-v1-0-805ab43ae65a@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, Maxime Ripard , Liviu Dudau X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=12544; i=mripard@kernel.org; h=from:subject:message-id; bh=6cr7a4Oi7nR6tykRdmPtBan+JL2S8tj3pWBBjqTArYI=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDBnPgs3q/uzsPWZswqgZ1bPhw+PlkecbRGp2W6qW+/Kaf r3Lv+l/x1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZjIvwrGOivBpPccW/n4zn2r n8w7W/v9j7Xh5i4T7x0sMDtUo3tae07E3tLfs3qCjC6peWsdCre4y9jQ+vpa/PfJeyoyfD7cdp5 4/+nDsGsTnx6cdEdAwFK0KzMulvmqiknMkYOrVpww1G0yPHEGAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The ARM komeda driver relies on a number of drm_private_objs, that are initialized by allocating and initializing a state, and then passing it to drm_private_obj_init. Since we're gradually moving away from that pattern to the more established one relying on a reset implementation, let's migrate this instance to the new pattern. Signed-off-by: Maxime Ripard --- Cc: Liviu Dudau --- .../gpu/drm/arm/display/komeda/komeda_pipeline.h | 2 + .../drm/arm/display/komeda/komeda_private_obj.c | 232 +++++++++++++++------ 2 files changed, 170 insertions(+), 64 deletions(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h index ac8725e248537e5737d16cd36860401c42073500..37b9e92202443cc72adc0666ed047d4f77d79782 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h @@ -126,10 +126,12 @@ struct komeda_component { * @funcs: chip functions to access HW */ const struct komeda_component_funcs *funcs; }; +#define to_component(o) container_of(o, struct komeda_component, obj) + /** * struct komeda_component_output * * a component has multiple outputs, if want to know where the data * comes from, only know the component is not enough, we still need to know 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 914400c4af73824e52dda76425a73a74e681a146..0c7b7a5dd10900016f64df2a86d54f9178d1cf5e 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_private_obj.c @@ -38,26 +38,39 @@ komeda_layer_atomic_destroy_state(struct drm_private_obj *obj, struct komeda_layer_state *st = to_layer_st(priv_to_comp_st(state)); kfree(st); } +static void +komeda_layer_reset(struct drm_private_obj *obj) +{ + struct komeda_layer_state *st; + + if (obj->state) { + komeda_layer_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_layer_obj_funcs = { .atomic_duplicate_state = komeda_layer_atomic_duplicate_state, .atomic_destroy_state = komeda_layer_atomic_destroy_state, + .reset = komeda_layer_reset, }; static int komeda_layer_obj_add(struct komeda_kms_dev *kms, struct komeda_layer *layer) { - struct komeda_layer_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &layer->base; - drm_atomic_private_obj_init(&kms->base, &layer->base.obj, &st->base.obj, + drm_atomic_private_obj_init(&kms->base, &layer->base.obj, NULL, &komeda_layer_obj_funcs); return 0; } static struct drm_private_state * @@ -80,27 +93,40 @@ komeda_scaler_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_scaler_st(priv_to_comp_st(state))); } +static void +komeda_scaler_reset(struct drm_private_obj *obj) +{ + struct komeda_scaler_state *st; + + if (obj->state) { + komeda_scaler_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_scaler_obj_funcs = { .atomic_duplicate_state = komeda_scaler_atomic_duplicate_state, .atomic_destroy_state = komeda_scaler_atomic_destroy_state, + .reset = komeda_scaler_reset, }; static int komeda_scaler_obj_add(struct komeda_kms_dev *kms, struct komeda_scaler *scaler) { - struct komeda_scaler_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &scaler->base; drm_atomic_private_obj_init(&kms->base, - &scaler->base.obj, &st->base.obj, + &scaler->base.obj, NULL, &komeda_scaler_obj_funcs); return 0; } static struct drm_private_state * @@ -123,26 +149,39 @@ komeda_compiz_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_compiz_st(priv_to_comp_st(state))); } +static void +komeda_compiz_reset(struct drm_private_obj *obj) +{ + struct komeda_compiz_state *st; + + if (obj->state) { + komeda_compiz_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_compiz_obj_funcs = { .atomic_duplicate_state = komeda_compiz_atomic_duplicate_state, .atomic_destroy_state = komeda_compiz_atomic_destroy_state, + .reset = komeda_compiz_reset, }; static int komeda_compiz_obj_add(struct komeda_kms_dev *kms, struct komeda_compiz *compiz) { - struct komeda_compiz_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &compiz->base; - drm_atomic_private_obj_init(&kms->base, &compiz->base.obj, &st->base.obj, + drm_atomic_private_obj_init(&kms->base, &compiz->base.obj, NULL, &komeda_compiz_obj_funcs); return 0; } @@ -166,27 +205,40 @@ komeda_splitter_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_splitter_st(priv_to_comp_st(state))); } +static void +komeda_splitter_reset(struct drm_private_obj *obj) +{ + struct komeda_splitter_state *st; + + if (obj->state) { + komeda_splitter_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_splitter_obj_funcs = { .atomic_duplicate_state = komeda_splitter_atomic_duplicate_state, .atomic_destroy_state = komeda_splitter_atomic_destroy_state, + .reset = komeda_splitter_reset, }; static int komeda_splitter_obj_add(struct komeda_kms_dev *kms, struct komeda_splitter *splitter) { - struct komeda_splitter_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &splitter->base; drm_atomic_private_obj_init(&kms->base, - &splitter->base.obj, &st->base.obj, + &splitter->base.obj, NULL, &komeda_splitter_obj_funcs); return 0; } @@ -209,27 +261,40 @@ static void komeda_merger_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_merger_st(priv_to_comp_st(state))); } +static void +komeda_merger_reset(struct drm_private_obj *obj) +{ + struct komeda_merger_state *st; + + if (obj->state) { + komeda_merger_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_merger_obj_funcs = { .atomic_duplicate_state = komeda_merger_atomic_duplicate_state, .atomic_destroy_state = komeda_merger_atomic_destroy_state, + .reset = komeda_merger_reset, }; static int komeda_merger_obj_add(struct komeda_kms_dev *kms, struct komeda_merger *merger) { - struct komeda_merger_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &merger->base; drm_atomic_private_obj_init(&kms->base, - &merger->base.obj, &st->base.obj, + &merger->base.obj, NULL, &komeda_merger_obj_funcs); return 0; } @@ -253,26 +318,39 @@ komeda_improc_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_improc_st(priv_to_comp_st(state))); } +static void +komeda_improc_reset(struct drm_private_obj *obj) +{ + struct komeda_improc_state *st; + + if (obj->state) { + komeda_improc_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_improc_obj_funcs = { .atomic_duplicate_state = komeda_improc_atomic_duplicate_state, .atomic_destroy_state = komeda_improc_atomic_destroy_state, + .reset = komeda_improc_reset, }; static int komeda_improc_obj_add(struct komeda_kms_dev *kms, struct komeda_improc *improc) { - struct komeda_improc_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &improc->base; - drm_atomic_private_obj_init(&kms->base, &improc->base.obj, &st->base.obj, + drm_atomic_private_obj_init(&kms->base, &improc->base.obj, NULL, &komeda_improc_obj_funcs); return 0; } @@ -296,26 +374,39 @@ komeda_timing_ctrlr_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(to_ctrlr_st(priv_to_comp_st(state))); } +static void +komeda_timing_ctrlr_reset(struct drm_private_obj *obj) +{ + struct komeda_timing_ctrlr_state *st; + + if (obj->state) { + komeda_timing_ctrlr_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->base.obj); + komeda_component_state_reset(&st->base); + st->base.component = to_component(obj); +} + static const struct drm_private_state_funcs komeda_timing_ctrlr_obj_funcs = { .atomic_duplicate_state = komeda_timing_ctrlr_atomic_duplicate_state, .atomic_destroy_state = komeda_timing_ctrlr_atomic_destroy_state, + .reset = komeda_timing_ctrlr_reset, }; static int komeda_timing_ctrlr_obj_add(struct komeda_kms_dev *kms, struct komeda_timing_ctrlr *ctrlr) { - struct komeda_compiz_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->base.component = &ctrlr->base; - drm_atomic_private_obj_init(&kms->base, &ctrlr->base.obj, &st->base.obj, + drm_atomic_private_obj_init(&kms->base, &ctrlr->base.obj, NULL, &komeda_timing_ctrlr_obj_funcs); return 0; } @@ -340,26 +431,39 @@ komeda_pipeline_atomic_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { kfree(priv_to_pipe_st(state)); } +static void +komeda_pipeline_reset(struct drm_private_obj *obj) +{ + struct komeda_pipeline_state *st; + + if (obj->state) { + komeda_pipeline_atomic_destroy_state(obj, obj->state); + obj->state = NULL; + } + + st = kzalloc(sizeof(*st), GFP_KERNEL); + if (!st) + return; + + __drm_atomic_helper_private_obj_reset(obj, &st->obj); + st->active_comps = 0; + st->pipe = container_of(obj, struct komeda_pipeline, obj); +} + static const struct drm_private_state_funcs komeda_pipeline_obj_funcs = { .atomic_duplicate_state = komeda_pipeline_atomic_duplicate_state, .atomic_destroy_state = komeda_pipeline_atomic_destroy_state, + .reset = komeda_pipeline_reset, }; static int komeda_pipeline_obj_add(struct komeda_kms_dev *kms, struct komeda_pipeline *pipe) { - struct komeda_pipeline_state *st; - - st = kzalloc(sizeof(*st), GFP_KERNEL); - if (!st) - return -ENOMEM; - - st->pipe = pipe; - drm_atomic_private_obj_init(&kms->base, &pipe->obj, &st->obj, + drm_atomic_private_obj_init(&kms->base, &pipe->obj, NULL, &komeda_pipeline_obj_funcs); return 0; } -- 2.51.0