From nobody Mon Feb 9 19:06:05 2026 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) (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 A34BB1B4C32 for ; Wed, 14 Aug 2024 15:16:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723648569; cv=none; b=KFhQcLu6CfFyWt8lz8X8dACz8XmbHBgFntcMdKDXEnS9389hRZfjFGO3Ll0kTyIIBmW/TCN+CuZqnLPYjX3XZZXo/w+UO5I0LHGrwFzaPMlq3njOI4gkOvev02AENy0480SeQNG5uJTQQk5BVgNQFNfSN8u/yWQB1hSXyALshxI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723648569; c=relaxed/simple; bh=UwfWjkDRUSPTIpDVCjvKIClHTrQ+CQ4DCl4x+NwGblw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=G1UWsUW0pRF+2PyW2T+gQOuU0Kj0gQ7QyNJyupatOPWja6px5Xw5aHpDZLo61rgbsF1B/7ZIcNmDdbvE5DgZsZWU0YSBIZ9Yot+U7hn21esaUGPuNioihmhanjoTgPcRMjFRjNUNK0rnQquFX59QFD+ZkfdCPGcpgQOpA/YtBXo= 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=BkPNgfIj; arc=none smtp.client-ip=217.70.183.195 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="BkPNgfIj" Received: by mail.gandi.net (Postfix) with ESMTPSA id 1C2496000C; Wed, 14 Aug 2024 15:16:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723648566; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZtHdgw9McHanJ5bgqEq9uSdi74niZL2dpQLUKRPjzOU=; b=BkPNgfIj7lzx08jG3e3/K2pbTyUPcF5iXTw/ho9ACTIoCqF+yUCGEvjOsOzEfMbPoyYwrs 1inTWqg9LmvtK/SmG71dQD2apILkJvqMOOJ9HkwPoYvENWjyypWZrV0Uk5l1HpwJlYkjGQ sEJgRjICurqGYHXC1ifVNKmYMk/D5+97cVMRNUu9DH332tGSosjP0E4SQ0ioF/GjJOc6Rd u9vGowgFnsyTNC3Bb/5DsjDaF9zgoAZIFCF7c1wj2UnOskekTCW5dJzNXdhdcMMSpomNp1 SKP+kVmuXQOP9x9zN3EsZGx7kDzrnlvMgh1l0eLrd0ZXqpX1j+9q/sOOmqi4Dw== From: Louis Chauvet Date: Wed, 14 Aug 2024 17:15:53 +0200 Subject: [PATCH RFC 6/7] drm/vkms: Add color range in ConfigFS 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: <20240814-google-config-fs-v1-6-8363181907a6@bootlin.com> References: <20240814-google-config-fs-v1-0-8363181907a6@bootlin.com> In-Reply-To: <20240814-google-config-fs-v1-0-8363181907a6@bootlin.com> To: Rodrigo Siqueira , Melissa Wen , =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Cc: dri-devel@lists.freedesktop.org, arthurgrillo@riseup.net, linux-kernel@vger.kernel.org, jeremie.dautheribes@bootlin.com, miquel.raynal@bootlin.com, thomas.petazzoni@bootlin.com, seanpaul@google.com, nicolejadeyee@google.com, Louis Chauvet X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=5517; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=UwfWjkDRUSPTIpDVCjvKIClHTrQ+CQ4DCl4x+NwGblw=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBmvMouw1bQlgtzsLxesTAO9Pp5Dmg7I7dl32SPZ QU6egIGqXyJAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZrzKLgAKCRAgrS7GWxAs 4iMxEACrdScEUMyOO/jJ053MWzOFSgbEYepGRtExWLtPPnm9+5AUUKkcnsG1OhvPaQUt01+mdqq IQGZGP1OWrUnQT+QeRmyASiJMXXL5TeHtKYZiP+5zPa5WMQH684PVwWiGcx8Sg9awp/o2fG+gUu OB+L9quTbAZOJ0HQLeBWplv3/9UiNnRJ7I8IG8zVeWnYSZxaqwvEAVxMe2C8zJnx0z6HFyLv+cL w/5/7Nq5f+PvYDsLRQUf2/islVyD+O1lWcA9A49ufCNiTJTwyaPgz+dkq0NBReQOHxlAIsPoPwt /6z1FR7jLss/VPtL0ISd52wmjJ5dUw4ZgnJsIcfV8W+aiBbSV83ZjPGOjUqM2Ih97JcMYWMV6jD Ehp3wkiIx2o1oAPoT6if4WuuQFw5OAE1N6d604mFBdv7gFFYQz8Y3pqu6FBA8xqLOj9+8+DfhuO IDtiwAU77SzsmTiSWfeV2EOT/oyPDxT3ZnzNkT4uCBLNloP2YYqRrjziezrfYzWxuElpYLq+hqL 0YA5E7ms3NHmXY1y/c1omia8ybwK9uGzMWr2jFxD2ZYW6iExhNhl5ueQ5gUVJuDAqIADMsdBNuU yuMaHIZWMGuc7TlJlnlPtwIYYl5wkzcWsE6vtTPegaiwNLmLeGAUZVqR8+/n5YwXfZYAFkXQDBO AVmX7eTU1ya6gAg== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-Sasl: louis.chauvet@bootlin.com To allows the userspace to test many hardware configuration, introduce a new interface to configure the available color ranges per planes. VKMS supports multiple color ranges, so the userspace can choose any combination. The supported color ranges are configured by writing a color range bitmask to the file `supported_color_ranges` and the default color range is chosen by writing a color encoding bitmask to `default_color_range`. The current interface is: /config/vkms DEVICE_1 =E2=94=A3=E2=94=81 enable =E2=94=A3=E2=94=81 planes =E2=94=83 =E2=94=97=E2=94=81 PLANE_1 =E2=94=83 =E2=94=A3=E2=94=81 type =E2=94=83 =E2=94=A3=E2=94=81 supported_rotations =E2=94=83 =E2=94=A3=E2=94=81 supported_color_encoding =E2=94=83 =E2=94=A3=E2=94=81 supported_color_ranges =E2=94=83 =E2=94=A3=E2=94=81 default_rotation =E2=94=83 =E2=94=A3=E2=94=81 default_color_encoding =E2=94=83 =E2=94=97=E2=94=81 default_color_range DEVICE_2 =E2=94=97=E2=94=81 ditto Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_configfs.c | 103 +++++++++++++++++++++++++++++++= ++++ 1 file changed, 103 insertions(+) diff --git a/drivers/gpu/drm/vkms/vkms_configfs.c b/drivers/gpu/drm/vkms/vk= ms_configfs.c index a3dab5986882..aabc83283626 100644 --- a/drivers/gpu/drm/vkms/vkms_configfs.c +++ b/drivers/gpu/drm/vkms/vkms_configfs.c @@ -152,6 +152,105 @@ static ssize_t plane_default_rotation_store(struct co= nfig_item *item, return count; } =20 +static ssize_t plane_color_range_show(struct config_item *item, char *page) +{ + struct vkms_config_plane *plane; + unsigned int plane_type; + struct vkms_configfs_device *vkms_configfs =3D plane_item_to_vkms_configf= s_device(item); + + mutex_lock(&vkms_configfs->lock); + plane =3D plane_item_to_vkms_configfs_plane(item)->vkms_config_plane; + plane_type =3D plane->supported_color_range; + mutex_unlock(&vkms_configfs->lock); + + return sprintf(page, "%u", plane_type); +} + +static ssize_t plane_color_range_store(struct config_item *item, + const char *page, size_t count) +{ + struct vkms_config_plane *plane; + struct vkms_configfs_device *vkms_configfs =3D plane_item_to_vkms_configf= s_device(item); + int ret, val =3D 0; + + ret =3D kstrtouint(page, 10, &val); + if (ret) + return ret; + + /* Should be a supported value */ + if (val & ~(BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE))) + return -EINVAL; + /* Should at least provide one color range */ + if ((val & (BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE))) =3D=3D 0) + return -EINVAL; + + mutex_lock(&vkms_configfs->lock); + + plane =3D plane_item_to_vkms_configfs_plane(item)->vkms_config_plane; + + /* Ensures that the default rotation is included in supported rotation */ + if (vkms_configfs->enabled || (val & plane->default_color_range) !=3D + plane->default_color_range) { + mutex_unlock(&vkms_configfs->lock); + return -EINVAL; + } + plane->supported_color_range =3D val; + mutex_unlock(&vkms_configfs->lock); + + return count; +} + +static ssize_t plane_default_color_range_show(struct config_item *item, ch= ar *page) +{ + struct vkms_config_plane *plane; + unsigned int plane_type; + struct vkms_configfs_device *vkms_configfs =3D plane_item_to_vkms_configf= s_device(item); + + mutex_lock(&vkms_configfs->lock); + plane =3D plane_item_to_vkms_configfs_plane(item)->vkms_config_plane; + plane_type =3D plane->default_color_range; + mutex_unlock(&vkms_configfs->lock); + + return sprintf(page, "%u", plane_type); +} + +static ssize_t plane_default_color_range_store(struct config_item *item, + const char *page, size_t count) +{ + struct vkms_config_plane *plane; + struct vkms_configfs_device *vkms_configfs =3D plane_item_to_vkms_configf= s_device(item); + int ret, val =3D 0; + + ret =3D kstrtouint(page, 10, &val); + if (ret) + return ret; + + /* Should be a supported value */ + if (val & ~(BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE))) + return -EINVAL; + /* Should at least provide one color range */ + if ((val & (BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | + BIT(DRM_COLOR_YCBCR_FULL_RANGE))) =3D=3D 0) + return -EINVAL; + + mutex_lock(&vkms_configfs->lock); + + plane =3D plane_item_to_vkms_configfs_plane(item)->vkms_config_plane; + + /* Ensures that the default rotation is included in supported rotation */ + if (vkms_configfs->enabled || (val & plane->supported_color_range) !=3D v= al) { + mutex_unlock(&vkms_configfs->lock); + return -EINVAL; + } + plane->default_color_range =3D val; + mutex_unlock(&vkms_configfs->lock); + + return count; +} + static ssize_t plane_supported_color_encoding_show(struct config_item *ite= m, char *page) { struct vkms_config_plane *plane; @@ -258,6 +357,8 @@ static ssize_t plane_default_color_encoding_store(struc= t config_item *item, CONFIGFS_ATTR(plane_, type); CONFIGFS_ATTR(plane_, supported_rotations); CONFIGFS_ATTR(plane_, default_rotation); +CONFIGFS_ATTR(plane_, color_range); +CONFIGFS_ATTR(plane_, default_color_range); CONFIGFS_ATTR(plane_, supported_color_encoding); CONFIGFS_ATTR(plane_, default_color_encoding); =20 @@ -265,6 +366,8 @@ static struct configfs_attribute *plane_attrs[] =3D { &plane_attr_type, &plane_attr_supported_rotations, &plane_attr_default_rotation, + &plane_attr_color_range, + &plane_attr_default_color_range, &plane_attr_supported_color_encoding, &plane_attr_default_color_encoding, NULL, --=20 2.44.2