From nobody Mon Feb 9 16:33:54 2026 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (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 490AF1607AB for ; Fri, 22 Nov 2024 17:39:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732297147; cv=none; b=l5ZPQ+pzpxfQ0VIwSQgmkOoQinhdgJH3TBAyNex6xBzzSzvwus9iJx0TZIvrg3IdClerIAJK3Asqhlh1ianLM6g6rnOoyL1cwrT3BEs4tZVVB6k3IRKeX+9DMiV1P776VwQE839XDeUYkuAy/aZIfHVN1TryE+mJ1zhcxJjXsLs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732297147; c=relaxed/simple; bh=i8E2F83sag4K7/D42ANd9mcZg4fMKlUl/lF3IvPXT6M=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=MYwFKXvKAnHv+2cb0QqPI1yztWMMl3hHXMK3tbWovBatJV1TcvCHUyUfct42POotoU0dUFl1JmKuT8kUsnH1vIvmTb9/OjCPfb0qqfg9HLEH8TbvgfoO9ZGnSYMwWlJiRQZ56LYW6DNTIVo9sE5fKBc9KlTKY+4g07QLUcXOtOA= 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=dCCmuCze; arc=none smtp.client-ip=217.70.183.198 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="dCCmuCze" Received: by mail.gandi.net (Postfix) with ESMTPSA id C14E6C000D; Fri, 22 Nov 2024 17:39:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1732297143; 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=5gTDNrB6XitmE4T+aS2E6vxEsV3E+1SNA41vUDvIuVQ=; b=dCCmuCzeLx8SxWss10bpqaQGyPbq4VP03W3A8N73IyhZXhoZ0sa1BUwdWuZ3CT7J51/G4j F4mKvn2uSGDP8WkVuP+a3DW/R9suxMilaul+jzxbUdRtkyuVXwKoC4J80wWGic7RSDS4we EpwiKPDoD5c6RIVvncN53qgPKySwzPeLHKPiAJLlt2jJTabcVvpF0QHZJTCRLMec9sNwtS T5hbF5SNdgz/2nHBtnFx1RL6GNwEG5hPKLvJjAul5GskR/NSeUhNgrcrgUCVPpOpsnF5gB WDwqT1yVVOATsuMH15yNwnKE+ZQoIUBFyMVnk0PMjwCkl4dYITpicOtdc7d5Yg== From: Louis Chauvet Date: Fri, 22 Nov 2024 18:38:33 +0100 Subject: [PATCH RFC v2 07/16] drm/vkms: Introduce configfs for plane color range 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: <20241122-google-config-fs-v2-7-4b7e6f183320@bootlin.com> References: <20241122-google-config-fs-v2-0-4b7e6f183320@bootlin.com> In-Reply-To: <20241122-google-config-fs-v2-0-4b7e6f183320@bootlin.com> To: Rodrigo Siqueira , Melissa Wen , =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Simona Vetter Cc: jose.exposito89@gmail.com, 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=5573; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=i8E2F83sag4K7/D42ANd9mcZg4fMKlUl/lF3IvPXT6M=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBnQMGrqhjyajHbpqYX8tyBXHzWkLE5kKRkLVANP vJz8Jq3WhCJAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZ0DBqwAKCRAgrS7GWxAs 4i4QEACkrGkbPPF5wa62Gww4gsNaKa5golQMfPiqiRQRpfEml2bGjXOIMZj1Itl7Sp73745Vy9+ lHPO6ei0v3KpkaSiYDSPebhLwxY9qpEzLZF+Foj4bEggNCSAeuM9Wc/pzucrb1H4za8RMU1Sw1w mp7/5b4Xl78Zr/jQaQBRQQWgkv6y8aX/IHRXUl5gmL8viwFwDkvMVLhUzRnbi+oO4YXf827t1Xh KFX051GZi/tqYrPLS51ed5QBBWav3Rjh7Rbqfnrq6na19h4s3JlQFd0z6c+70dYhsDgdL9HJkg4 Ryo3G0Mlg6RC0HlPwNyqXfqQGyM7qqyVnDAoTT8IEiE8VXcpk7IdJVe5bP69YeURqvKRf9SMLFn Nda5OREpsJrxVgpOcDBgDS0t5qNEqlS3tj4XHDGPkZxrEisAjSR0o8WjdzPHze5GT2Zhbc7OwtU eq3ovmn8InKzNJanmYTs+qWQR2Dbx5dcwaaU5uBZfqZUeEfrOIk2IYx95qwrozfv9N4k0Pkc65p atULXY1KC2iZ8k/khqoMy6ZmhJcdnjoZY/6X7Io7jsi3jNyyj1Wd7G0AxbTFZdN2rGiHkdKl0xI jTn44iHxJAswpOFxNCxgqZr58rp8llasuJVR2j5D6ENFS1q6AUiiy/f8jgUT6bWY3BfCOjuJre/ B2whOanvIwnZZXg== 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 a3dab59868829266adfe8192c5089cda2044c050..aabc832836266668c8adc60d7d5= 284ee1f385f31 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 2.47.0