From nobody Mon Feb 9 09:22:31 2026 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 32B5D26980B for ; Wed, 29 Oct 2025 13:30:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761744640; cv=none; b=sA3x0fgLYk9m6Zd1Tlaz5Niv3Q7xNf8jFClO7gQLgTm9wHH78l9LKvrJb4Yck48HkWUvf8jV0Doc+MidlxQJHZo9/H9/Mi29Q0u64O1Zc9a06uTO1xE0/Z+OKWB5O3QJM9/f7GMK2whCX/IgbSjihoICDvmkMM/+wLFNQ+NKmhU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761744640; c=relaxed/simple; bh=e8ElyHXcVk0AWYJ7dGjNKx8CrM9WhxXKeDzUlhTH99U=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cFiw4pB8uCX/JJS2G3iJBMD5u3LVCQdK5WXokyPywpgS4L0kF03tG0vGRcO1H6tw3BBm9psN6syz3V8u0NSbaSLm39mgf1aFnUC1h8XmCJMcTkI6Uj4kghFDAu8bdw8jw6/MkuWpChBWRe6rX3UIGDzLX+KuqYfOH3An603cSbY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=YeOgGv7u; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="YeOgGv7u" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 4A73BC0DB00; Wed, 29 Oct 2025 13:30:15 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id A165E606E8; Wed, 29 Oct 2025 13:30:35 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 4E305117F809A; Wed, 29 Oct 2025 14:30:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1761744634; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=fs9ni9DRQ5vnDzOwoZttmqZ202xPMAoGkKss/mz8Bp4=; b=YeOgGv7u62i6IHv75jQrEqeZOcaQ2KAGt5yEvKhhYAGSAM/PlZjA1SjfIjZ9uatkBZBkHQ KKU3AM6SnnAkkQywvUHj7qF6UstBipPgRHNPFKkWh55v4PDM/NuUIm4pcpUe6Iu4s5MNZO zxPQ8WIaHSPfynw8y6Jhpe45gc5FarKyg/Pc1GTYvh9XSlyZuxgw/FJsb+j717KQR/WJLF gc2lhmGECh/xxHgTWRdvTookjyLo5aNMes7rcLAWDb9+sYXcguJo2S/5hHkzJFCB6ERj/z A6ZLIqkRUMaL5eReGraJHCbHmhPLgbMkGsZOMSJWX5P6608WmHk3vusBDjUyXA== From: Louis Chauvet Date: Wed, 29 Oct 2025 14:30:16 +0100 Subject: [PATCH v2 06/32] drm/vkms: Introduce configfs for plane name Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251029-vkms-all-config-v2-6-be20b9bf146e@bootlin.com> References: <20251029-vkms-all-config-v2-0-be20b9bf146e@bootlin.com> In-Reply-To: <20251029-vkms-all-config-v2-0-be20b9bf146e@bootlin.com> To: Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , jose.exposito89@gmail.com, Jonathan Corbet Cc: victoria@system76.com, sebastian.wick@redhat.com, victoria@system76.com, airlied@gmail.com, thomas.petazzoni@bootlin.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Louis Chauvet X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2206; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=e8ElyHXcVk0AWYJ7dGjNKx8CrM9WhxXKeDzUlhTH99U=; b=owEBbQKS/ZANAwAKASCtLsZbECziAcsmYgBpAhbq15OoDz92mgX8JMHTEsCZmO0xWYXS2X01h jGzxdK2qPuJAjMEAAEKAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCaQIW6gAKCRAgrS7GWxAs 4hk9D/4/xFfTKKNu+LjBdoFMtoqtHavnG3bt5jownuu/g8cgVPIxlTrsOBL3jfly8Hnv3R2EMow 05cgJTajRO7VE4BU1JYOFme1MNgtes66tNHq4qjGepFC87IPsHEFCMeSM5KmHfB213Nsb46W+m4 Q66kW697gxKHw3AqyONY/rXiJbeRVujPevjbryEsieoyiJqfdI4I2lZknbcE59foOjwYGJGqe8V 833ZkvskOf/zlxfqZYsMWLoXLunMbdyWCHuxYmkpQrArza0nh3cKkd3pOdvyKr1S+hIaImXGk8Q nO4QRRETXZKmK9MixUK5PH9cDvDICb3MKOuJ2M/Kba0RQJK4uBOBWC0GE9sAAH62p6qGXimJjeC ocujXz/FlVYGI1I8o+LA5DgsDWC5DeBZV0Vw3rX4jk94+NzMK11cYy4+MHw7k6ROXEx9iTt6oVB u1kFHRENCU8elYRg7nXNOkK925iHiSsTRZSwccjqqizlr/V5GYJONV3kL/RKkyYHqKcJROK5qLU Mh3PdBbxQvUDWRff1vmaNuSYieZfacNBZAvkfCkRSp6XONH/OFKpx1DBxpm6nl0E9DvruYYhT0I GpXqf27qND0Il6eHXpY51tjXrbmqWYztIEJO23JN19f/ixMOTt22oeXwFwQ8rOWLJ3bRCe7q7jW rpP2UbhDKuF0R2Q== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-Last-TLS-Session-Version: TLSv1.3 Planes can have name, create a plane attribute to configure it. Currently plane name is mainly used in logs. Signed-off-by: Louis Chauvet --- Documentation/gpu/vkms.rst | 3 ++- drivers/gpu/drm/vkms/vkms_configfs.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 1 deletion(-) diff --git a/Documentation/gpu/vkms.rst b/Documentation/gpu/vkms.rst index 3574e01b928d..1fe6e420c963 100644 --- a/Documentation/gpu/vkms.rst +++ b/Documentation/gpu/vkms.rst @@ -87,10 +87,11 @@ Start by creating one or more planes:: =20 sudo mkdir /config/vkms/my-vkms/planes/plane0 =20 -Planes have 1 configurable attribute: +Planes have 2 configurable attributes: =20 - type: Plane type: 0 overlay, 1 primary, 2 cursor (same values as those exposed by the "type" property of a plane) +- name: Name of the plane =20 Continue by creating one or more CRTCs:: =20 diff --git a/drivers/gpu/drm/vkms/vkms_configfs.c b/drivers/gpu/drm/vkms/vk= ms_configfs.c index 07ab794e1052..be6c3ba998b9 100644 --- a/drivers/gpu/drm/vkms/vkms_configfs.c +++ b/drivers/gpu/drm/vkms/vkms_configfs.c @@ -322,10 +322,42 @@ static ssize_t plane_type_store(struct config_item *i= tem, const char *page, return (ssize_t)count; } =20 +static ssize_t plane_name_show(struct config_item *item, char *page) +{ + struct vkms_configfs_plane *plane; + const char *name; + + plane =3D plane_item_to_vkms_configfs_plane(item); + + scoped_guard(mutex, &plane->dev->lock) + name =3D vkms_config_plane_get_name(plane->config); + + return sprintf(page, "%s\n", name); +} + +static ssize_t plane_name_store(struct config_item *item, const char *page, + size_t count) +{ + struct vkms_configfs_plane *plane; + + plane =3D plane_item_to_vkms_configfs_plane(item); + + scoped_guard(mutex, &plane->dev->lock) { + if (plane->dev->enabled) + return -EBUSY; + + vkms_config_plane_set_name(plane->config, page); + } + + return (ssize_t)count; +} + CONFIGFS_ATTR(plane_, type); +CONFIGFS_ATTR(plane_, name); =20 static struct configfs_attribute *plane_item_attrs[] =3D { &plane_attr_type, + &plane_attr_name, NULL, }; =20 --=20 2.51.0