From nobody Tue Feb 10 05:46:52 2026 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (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 C09102DF128 for ; Tue, 23 Dec 2025 18:02:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766512967; cv=pass; b=CixC7MjtUnJnnKIBuy2mE8kkkKB746JIlhDa3c6MaWdTiMaDDpouZQo6F11qKimg/HrPKhrd3Lnb/N/P5BRLIs9zR6tjM3N6oRcOzWMb1cSQ/CbDa19/R5/5kQO7kyi/i0/kY38HbwOOwbzghz4S2Aa6GM2yOoP0X2DrZHpZ32k= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766512967; c=relaxed/simple; bh=HR2GTnj7DVSwk5x0jXurEOgCEkmudAD4rQtrfGzlZJ4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=PW1AXGbXqkGNNJOVKOUe/ec3j6JhnfdSEaWeO//zzGjcGorq6Gs26M4l2I4cL5dWWPVzTc9sBBbeDVdvfgBtqtJl0YfaIJkxfvVbWVMhzNNXkRRsgtReeZlTdPXgoQM8z8LF4e6CZpU+ERspkApSAu9D1m1RFkQNVEt4EwD0Z/Q= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=ariel.dalessandro@collabora.com header.b=dJ/dS8I0; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=ariel.dalessandro@collabora.com header.b="dJ/dS8I0" ARC-Seal: i=1; a=rsa-sha256; t=1766512942; cv=none; d=zohomail.com; s=zohoarc; b=D4dpXf/kOefOTHn0G+if7MWNoBnc6pazo1tBs6sTAV/f9l9K8j39LQnk+9f6NSGNG2ygyYemKumsfw3wZnhWb/F4QU3A25tAEiu1XzmbfdC7uZeoUHWlO2I2F8CxiFoP0Ayst2EXHz4VADIq4yFFutxgC2w8TC8BZPXDVMhJNsk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1766512942; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=pJn/mw27ASMYH1eslTWNk2pj9StSgOu234qU94wNcU0=; b=k3ORl5QY+zvbSztiY1n7UxmxmFLtAM7kq9RsDhPIJ2J/Xass0S9U2rT1LPbFLqa0YJnfsw7X2Buob+TTleIhcEdIiEjQMfe2YK+Y6peWOxhQ3zRQg3bZ/VJwLmo6STsdjweQ6FNJ+RG1CxCDHNAQoEFz3HKt6h3Dw40vrQMtgJU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=ariel.dalessandro@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1766512942; s=zohomail; d=collabora.com; i=ariel.dalessandro@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=pJn/mw27ASMYH1eslTWNk2pj9StSgOu234qU94wNcU0=; b=dJ/dS8I0eQlFOUwAkvN1nKoRhjQafI8Xzu7DKN2ztJkWoxkv10zs/Yj3SbjDPjX8 JS28h6R+MfvtXiGwrcIkzGnVF5JXha371VzFMXbkdEUZpsfDv/KxY1rF6Ut7oUcqkAa h1cw9J5l/DC9Le2TsNGZ5j/H5DZScARx0/SM8/yM= Received: by mx.zohomail.com with SMTPS id 1766512939951945.0171277774921; Tue, 23 Dec 2025 10:02:19 -0800 (PST) From: Ariel D'Alessandro Date: Tue, 23 Dec 2025 15:01:25 -0300 Subject: [PATCH v3 05/21] drm: Introduce DRM_CAP_CRTC_COLOR_PIPELINE 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: <20251223-mtk-post-blend-color-pipeline-v3-5-7d969f9a37a0@collabora.com> References: <20251223-mtk-post-blend-color-pipeline-v3-0-7d969f9a37a0@collabora.com> In-Reply-To: <20251223-mtk-post-blend-color-pipeline-v3-0-7d969f9a37a0@collabora.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Chun-Kuang Hu , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno , Louis Chauvet , Haneen Mohammed , Melissa Wen Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com, =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= , Ariel D'Alessandro X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1766512902; l=2165; i=ariel.dalessandro@collabora.com; s=20251223; h=from:subject:message-id; bh=kfVUfKjodbekXsvWhvhNMULrCNfhQeoK3m2Un8nNelw=; b=KKNosxZ7qfITbVbVW3jxo97MtIlcJAKzhlYoFy4Pl72ZDhs4YOX+LGKl09J8lRNZjvc3hq7L+ /T9Wydrr3WtCreATzKI826YpBhXQjJ2al0jgTNDP36t+pWl6JZ5tWCy X-Developer-Key: i=ariel.dalessandro@collabora.com; a=ed25519; pk=QZRL9EsSBV3/FhDHi9L/7ZTz2dwa7iyqgl+y1UYaQXQ= X-ZohoMailClient: External From: "N=C3=ADcolas F. R. A. Prado" Add a new cap that drivers can set to signal they support CRTC (a.k.a. post-blend) color pipelines. Signed-off-by: N=C3=ADcolas F. R. A. Prado Co-developed-by: Ariel D'Alessandro Signed-off-by: Ariel D'Alessandro Reviewed-by: Louis Chauvet --- drivers/gpu/drm/drm_ioctl.c | 3 +++ include/drm/drm_drv.h | 6 ++++++ include/uapi/drm/drm.h | 6 ++++++ 3 files changed, 15 insertions(+) diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index ff193155129e7..2884075660ddd 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -304,6 +304,9 @@ static int drm_getcap(struct drm_device *dev, void *dat= a, struct drm_file *file_ req->value =3D drm_core_check_feature(dev, DRIVER_ATOMIC) && dev->mode_config.async_page_flip; break; + case DRM_CAP_CRTC_COLOR_PIPELINE: + req->value =3D drm_core_check_feature(dev, DRIVER_CRTC_COLOR_PIPELINE); + break; default: return -EINVAL; } diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index 42fc085f986de..2a57c50b4223e 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -122,6 +122,12 @@ enum drm_driver_feature { * the cursor planes to work correctly). */ DRIVER_CURSOR_HOTSPOT =3D BIT(9), + /** + * @DRIVER_CRTC_COLOR_PIPELINE: + * + * Driver supports CRTC (post-blend) color pipeline. + */ + DRIVER_CRTC_COLOR_PIPELINE =3D BIT(10), =20 /* IMPORTANT: Below are all the legacy flags, add new ones above. */ =20 diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index 27cc159c1d275..d726828bdf408 100644 --- a/include/uapi/drm/drm.h +++ b/include/uapi/drm/drm.h @@ -812,6 +812,12 @@ struct drm_gem_change_handle { * commits. */ #define DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP 0x15 +/** + * DRM_CAP_CRTC_COLOR_PIPELINE + * + * If set to 1, the driver supports CRTC (post-blend) color pipelines. + */ +#define DRM_CAP_CRTC_COLOR_PIPELINE 0x16 =20 /* DRM_IOCTL_GET_CAP ioctl argument type */ struct drm_get_cap { --=20 2.51.0