From nobody Tue Feb 10 04:17:12 2026 Received: from relay4-d.mail.gandi.net (relay4-d.mail.gandi.net [217.70.183.196]) (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 65B621DEFFD for ; Fri, 22 Nov 2024 16:25:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.196 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732292717; cv=none; b=VgWWAA+b6ndhMet3UFOE62wVx0ZBP7t3DgzfFHQZ3hLW1wC4/G/xmksAM4dpXyiiMIqFNzoHfk+hbhbr1RVhGwmNHSNNVo7a0es//kKY0k6J1UU5ZJI29JBAWH4OUNU2kBFJaytZvLZzNM8ktq9vJcCdWIIYshzAAVkNr1XzVek= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732292717; c=relaxed/simple; bh=UoxOHiMTNSZuKXnSQuqgBjDi8qYlisedSJdTUWJ8t7k=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kAoy/9AyAG6azSqJmpMJkUG5PZvR6ffCpzVsl+Kl0Ki2W0cXisHcdCxbwaI5aBMNShdI6jlnl1mV+En0UiemFhT5fmIoh0nre516clVizfkMfdAUxvA8HsO/Od0ytktq8ZplQ83Bqg0fzUYKAi8FM80WvCaP+IbDGG82W3rZhT8= 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=Pg/9AsI3; arc=none smtp.client-ip=217.70.183.196 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="Pg/9AsI3" Received: by mail.gandi.net (Postfix) with ESMTPSA id 8C611E0008; Fri, 22 Nov 2024 16:25:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1732292707; 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=4+cxTF9KCJO78YUV+0ZHhBWyFhLzGz4nnDy5LMx5b6s=; b=Pg/9AsI3WIp0tF98BPvN4L7upd3O+X7DoubntwCwOmpcDVM3clHX2iM4mZd/DUSAPcbV34 3jmgilU3DnEyabD4NGHdcS1BMxXb/nikqLpRtC69J7HoDO8wt3OWlj6YOD4vV6cd/Kx7Ne R9Hnvbht5CvLs6vbz5OUBYSBz5IF+Gt2Y67nCnvgOuiXmKF4teevHVNkdqAGejflxiByM0 LMuBeaJLOGluwEuDpEi+Nb8d29Nf6EPKxp+m0rIwy/m3hsFxe9TkLlEowaRwt0KMQ7SDWm 4FMbvWHgPYV6WNUnvEaWpow6O5JskjqNRUjo2w9ssMdQFVwpSSFftwDujindLg== From: Louis Chauvet Date: Fri, 22 Nov 2024 17:25:02 +0100 Subject: [PATCH v3 3/3] drm/vkms: Add support for XRGB2101010 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-writeback_line_by_line-v3-3-085d5810f6e3@bootlin.com> References: <20241122-writeback_line_by_line-v3-0-085d5810f6e3@bootlin.com> In-Reply-To: <20241122-writeback_line_by_line-v3-0-085d5810f6e3@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: 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=2493; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=UoxOHiMTNSZuKXnSQuqgBjDi8qYlisedSJdTUWJ8t7k=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBnQLBeEgU50nN/Jsq9saN6JiwszSPcxZECtubdO WvEhQD9nfWJAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZ0CwXgAKCRAgrS7GWxAs 4jn3EAC/ztIduKbgnP6ONI9LAQmfqHBsju5aJlvQ5lZpWSIt764Ky2t9qSDaKRi541wJ3axPjux zYIeQ7oTx3cRLg30YK6IkaauV7RBlwzcp4ybJKk+1Z/GUVkV4RfL58NdEuDw0cQc4arRl0nQd3R wJPt6S78SnJsnJE95IZuzCQMmcI/zY83bIzmr2HUcb4+dFRczy6DVmh1VFMmj1RkaFsyyQ6UQID Vsy8RC79MorPCdClpC6GM3j6Yz4DFTNBtNWI5dngrQwpIkv7tOCqcrFanR/NpPVqCHIVVZhVvRn 9+LyBDVcUIBpjb6LgXbCYfNZNve1QM9o1QkKPzD3NqFIE50j/IdHrOEs8gQvwQMHhBf+6WD0CCt 9f4cmNUwknKKiaM4oBE9kXu+6CYloMZo/X/yiyqEZ/LCZ29JUSlrBl7dkeyeQyZtXgAiVvI7R0t Strpq15GjTATAMIZPYEZV1W9oTayNVmi8/uxYMDRXHTid2XJR/5w4DCGM7/voUl4/F2PPJlDFK3 /QcDsGvgNoFYnuVjrAtrkwXdS1JJCpzGgOWRpvai8hJbHU0z4PXGN7C+FASJZTyTXuOVRE/zp7R iieQ6YFAwAjSSU2mtGJRbW3OmMB1zKMBhsKo5psIABS598mMVtgSAoZ655gT5iftTnY0giuViGu c1+RREemk3A5m2Q== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-Sasl: louis.chauvet@bootlin.com Thanks to the WRITE_LINE macro, adding the format XRGB210101010 is trivial. Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_formats.c | 12 ++++++++++++ drivers/gpu/drm/vkms/vkms_writeback.c | 3 ++- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkm= s_formats.c index 6a50a86291e50edab2058cf7d40c7efc8fcb4c12..2177310580ae19382d5fc2f095d= 6b49984033b61 100644 --- a/drivers/gpu/drm/vkms/vkms_formats.c +++ b/drivers/gpu/drm/vkms/vkms_formats.c @@ -656,6 +656,14 @@ static void argb_u16_to_RGB565(u8 *out_pixel, const st= ruct pixel_argb_u16 *in_pi *pixel =3D cpu_to_le16(r << 11 | g << 5 | b); } =20 +static void argb_u16_to_XRGB2101010(u8 *out_pixel, const struct pixel_argb= _u16 *in_pixel) +{ + out_pixel[0] =3D (u8)(in_pixel->b & 0xFF); + out_pixel[1] =3D (u8)((in_pixel->b >> 8) & 0x03) | (u8)((in_pixel->g << 2= ) & 0xFC); + out_pixel[2] =3D (u8)((in_pixel->g >> 6) & 0x0F) | (u8)((in_pixel->r << 4= ) & 0xF0); + out_pixel[3] =3D (u8)((in_pixel->r >> 4) & 0x3F); +} + /** * WRITE_LINE() - Generic generator for write_line functions * @@ -700,6 +708,8 @@ WRITE_LINE(XRGB16161616_write_line, argb_u16_to_XRGB161= 61616) =20 WRITE_LINE(RGB565_write_line, argb_u16_to_RGB565) =20 +WRITE_LINE(XRGB2101010_write_line, argb_u16_to_XRGB2101010) + /** * get_pixel_read_line_function() - Retrieve the correct read_line functio= n for a specific * format. The returned pointer is NULL for unsupported pixel formats. The= caller must ensure that @@ -980,6 +990,8 @@ pixel_write_line_t get_pixel_write_line_function(u32 fo= rmat) return &XRGB16161616_write_line; case DRM_FORMAT_RGB565: return &RGB565_write_line; + case DRM_FORMAT_XRGB2101010: + return &XRGB2101010_write_line; default: /* * This is a bug in vkms_writeback_atomic_check. All the supported diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/v= kms_writeback.c index 0b31628e1b532367cc79cd7432aa070661f41a57..f25468bf4cd7b92535288695761= 11e7a3745a42f 100644 --- a/drivers/gpu/drm/vkms/vkms_writeback.c +++ b/drivers/gpu/drm/vkms/vkms_writeback.c @@ -19,7 +19,8 @@ static const u32 vkms_wb_formats[] =3D { DRM_FORMAT_XRGB8888, DRM_FORMAT_XRGB16161616, DRM_FORMAT_ARGB16161616, - DRM_FORMAT_RGB565 + DRM_FORMAT_RGB565, + DRM_FORMAT_XRGB2101010, }; =20 static const struct drm_connector_funcs vkms_wb_connector_funcs =3D { --=20 2.47.0