From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793356104; b=qQs513hu7i4luednBq2QUPOGCrbYZHvChmqZoz15cAKJu8p932notsK7h/BDx8dTugjM Ig5cmIg4/3JpZ25b5YfXg8B4jGA3/a1KFbLYtFcM4KvduQwJfxCDe57Hl9OXnDwGxwfMD fTgGVXnJIyhZ4P4u9wzoRsn3J67paoRPAK3yzt7S0g0mF5Z53bcD8gjhtGTEkBLtlytBM hppFzuNAJAigF0WLY84gu5sCGp0Hvs1hTXDbb+cVP2fi467IRr4DCf21rjopDW0aggSfa 8ofEhjxbLX56vszrEAu7Nv5ugFa8l7jjKxaONn2NMDh+15rZN9+m+UBPawLJ+5gesyw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793356104; h=Received:DKIM-Signature:From:Date:Subject:MIME-Version:Content-Type: Content-Transfer-Encoding:Message-Id:References:In-Reply-To:To:Cc: X-Mailer:X-Developer-Signature:X-Developer-Key; bh=6OCca06egYWlAwVkTs+cUvuzH9TznyqKs3FaTESZMz8=; b=NrEdsIR6qll5QTPHOt0zZKgoWkrnjXI0pPieb2q6ewKVHnoJZZu6qpyvlkxwfyZm1BBi 8kigFTACDS70u1A5Ecwsr3TKUHFfMp+FagYzTVT5nfMgQv9Tnjwn3tLy3fO4a5ltTSWWE Tl04hhGKdKlFauBmFRrPeMydxX9BWo7KUkm2dbfBCdi37oc84kJV9BZxtr1s1xtH1Eo70 Wjf8wwT5bacF2AK3tAaAvPGtdg++HQVUR/k3D77miTqDvJigi5lRQl61NPpUN2z8TUF7I MQpclEdMgdhsMMQADwBo53BJrqVsJP4qmdYK0uwm1aaoLDry9I7LQ75uFuQ2Y6UwlKg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=WPnplA+x; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D3ADB60A2620 for ; Fri, 30 Oct 2026 10:28:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=WPnplA+x Received: by smtp.kernel.org (Postfix) with ESMTPSA id 357401F00A1C; Fri, 30 Oct 2026 10:28:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793356103; bh=6OCca06egYWlAwVkTs+cUvuzH9TznyqKs3FaTESZMz8=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=WPnplA+xG76zk2UicysALls3t5bj55ZxKPgb/mWE51U2KBViAbEp49n3FQ5m1WABp txSEPJbghI37ycWEwnNid7DJzQg4CttCSGSbA0Jj4z1rJTfoGZnKy4UrxsAcQaOwFx +51jXhcAGy+6hWvGBLkuFHoATjPQBveUSfjW8kiIMXyiwSwJGXNBSlCtYNSH64d+am apP4sHeRSjnt2V4Z6ibCzvLWg0tlYjTo0DMHcQGe9F8DffrjSVoEs+1meFIvX1HX0u cWoiCPHILeIXEZTW10CHv4PLPq6jm4Xu1jwhK4McuxBKZrqUVVnpIBWXws5hmkfsgj hOPLEL7Q0GJ6Q== From: Maxime Ripard Date: Fri, 30 Oct 2026 11:27:42 +0100 Subject: [PATCH v7 10/16] drm/atomic: Create function to insert connector state into a commit X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261030-drm-reset-state-flag-v7-10-4e55eaeae683@kernel.org> References: <20261030-drm-reset-state-flag-v7-0-4e55eaeae683@kernel.org> In-Reply-To: <20261030-drm-reset-state-flag-v7-0-4e55eaeae683@kernel.org> To: Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter , Louis Chauvet , Haneen Mohammed , Melissa Wen Cc: Daniel Stone , Harry Wentland , Jocelyn Falempe , =?utf-8?q?Jonas_=C3=85dahl?= , =?utf-8?q?Michel_D=C3=A4nzer?= , Pekka Paalanen , Sebastian Wick , Simon Ser , Victoria Brekenfeld , Xaver Hugl , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Maxime Ripard X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=3841; i=mripard@kernel.org; h=from:subject:message-id; bh=4N1f/VazZl18ma1rQKS+o923euu0mcNJmmmZyREtvXg=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDFlPCqUD/GW/cFqvfPJ9i6T3OpUjVpNV5Tdu2HTY6ZvRB NOyO1e3dUxlYRDmZJAVU2R5IhN2enn74ioH+5U/YOawMoEMYeDiFICJlKxkbJj7lWNSyQW9fd5r tjceU2erVBWd3xcaV9iw7WBMgOH9fAvHirfWU5hET35Nl97g/2TuYcb6tM+9sbO73/Q5HZggJ/1 Lfs98JSUennWTziVrulau8KtUvN2rFbl/YdfCW3dlk51+bKwEAA== X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D drm_atomic_get_connector_state() allocates a new connector state by duplicating the current one and inserts it into the atomic commit as a single operation. However, a later change will need to insert a connector state into a commit without going through the full allocation and duplication path in drm_atomic_get_connector_state(). Extract the state insertion logic, including the dynamic array reallocation, into a new static drm_atomic_commit_set_connector_state() helper, and convert drm_atomic_get_connector_state() to use it. Reviewed-by: Daniel Stone Signed-off-by: Maxime Ripard --- drivers/gpu/drm/drm_atomic.c | 60 ++++++++++++++++++++++++++++---------------- 1 file changed, 38 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 513e91ad2fdc..81591173265d 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1405,4 +1405,36 @@ drm_atomic_get_new_crtc_for_encoder(struct drm_atomic_commit *state, EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder); +static int drm_atomic_commit_set_connector_state(struct drm_atomic_commit *commit, + struct drm_connector *connector, + struct drm_connector_state *connector_state) +{ + struct drm_mode_config *config = &connector->dev->mode_config; + int index = drm_connector_index(connector); + + drm_modeset_lock_assert_held(&config->connection_mutex); + + if (index >= commit->num_connector) { + struct __drm_connnectors_state *c; + int alloc = max(index + 1, config->num_connector); + + c = krealloc_array(commit->connectors, alloc, + sizeof(*commit->connectors), GFP_KERNEL | __GFP_ZERO); + if (!c) + return -ENOMEM; + + commit->connectors = c; + commit->num_connector = alloc; + } + + drm_connector_get(connector); + commit->connectors[index].state_to_destroy = connector_state; + commit->connectors[index].old_state = connector->state; + commit->connectors[index].new_state = connector_state; + commit->connectors[index].ptr = connector; + connector_state->state = commit; + + return 0; +} + /** * drm_atomic_get_connector_state - get connector state @@ -1423,5 +1455,5 @@ drm_atomic_get_connector_state(struct drm_atomic_commit *state, struct drm_connector *connector) { - int ret, index; + int ret; struct drm_mode_config *config = &connector->dev->mode_config; struct drm_connector_state *connector_state; @@ -1434,19 +1466,4 @@ drm_atomic_get_connector_state(struct drm_atomic_commit *state, return ERR_PTR(ret); - index = drm_connector_index(connector); - - if (index >= state->num_connector) { - struct __drm_connnectors_state *c; - int alloc = max(index + 1, config->num_connector); - - c = krealloc_array(state->connectors, alloc, - sizeof(*state->connectors), GFP_KERNEL | __GFP_ZERO); - if (!c) - return ERR_PTR(-ENOMEM); - - state->connectors = c; - state->num_connector = alloc; - } - connector_state = drm_atomic_get_new_connector_state(state, connector); if (connector_state) @@ -1457,10 +1474,9 @@ drm_atomic_get_connector_state(struct drm_atomic_commit *state, return ERR_PTR(-ENOMEM); - drm_connector_get(connector); - state->connectors[index].state_to_destroy = connector_state; - state->connectors[index].old_state = connector->state; - state->connectors[index].new_state = connector_state; - state->connectors[index].ptr = connector; - connector_state->state = state; + ret = drm_atomic_commit_set_connector_state(state, connector, connector_state); + if (ret) { + connector->funcs->atomic_destroy_state(connector, connector_state); + return ERR_PTR(ret); + } drm_dbg_atomic(connector->dev, "Added [CONNECTOR:%d:%s] %p state to %p\n", -- 2.55.0