From patchwork Mon Nov 6 12:04:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 13446779 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B131C4167B for ; Mon, 6 Nov 2023 12:04:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231577AbjKFMEl (ORCPT ); Mon, 6 Nov 2023 07:04:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231522AbjKFMEi (ORCPT ); Mon, 6 Nov 2023 07:04:38 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C8175EA; Mon, 6 Nov 2023 04:04:34 -0800 (PST) X-UUID: a4b79ab47c9c11ee8051498923ad61e6-20231106 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=urgImsiByBgrXegm6WMvOjpTwwvXom0xQlrJXyilo6s=; b=qKnkrskHkY+kzMklu//q1b2259OyPitj+miD50DZQlG6D8h8G38SermwJPEjR+cL03dnF+W9n8bTD8PVrcfUDh/jBt6NVc5Zy33m76/N8UOD0+UdEmFslcg6gGJudsjD+4W4PrVk4SIUOubtO3Ze0sbembvpGXwdLkWmSLipc4k=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.33,REQID:93776f81-8e25-4599-bdad-c69615034838,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:364b77b,CLOUDID:cb2035fc-4a48-46e2-b946-12f04f20af8c,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: a4b79ab47c9c11ee8051498923ad61e6-20231106 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 738908743; Mon, 06 Nov 2023 20:04:31 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 6 Nov 2023 20:04:30 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 6 Nov 2023 20:04:29 +0800 From: Yunfei Dong To: Jeffrey Kardatzke , "T . J . Mercier" , John Stultz , Yong Wu , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Pr?= =?utf-8?q?ado?= , Nicolas Dufresne , Hans Verkuil , AngeloGioacchino Del Regno , Benjamin Gaignard , Nathan Hebert CC: Chen-Yu Tsai , Hsin-Yi Wang , Fritz Koenig , Daniel Vetter , Steve Cho , Yunfei Dong , , , , , , Subject: [PATCH v2,04/21] v4l: add documentation for secure memory flag Date: Mon, 6 Nov 2023 20:04:06 +0800 Message-ID: <20231106120423.23364-5-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231106120423.23364-1-yunfei.dong@mediatek.com> References: <20231106120423.23364-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Jeffrey Kardatzke Adds documentation for V4L2_MEMORY_FLAG_SECURE. Signed-off-by: Jeffrey Kardatzke Signed-off-by: Yunfei Dong --- Documentation/userspace-api/media/v4l/buffer.rst | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/userspace-api/media/v4l/buffer.rst b/Documentation/userspace-api/media/v4l/buffer.rst index 52bbee81c080..a5a7d1c72d53 100644 --- a/Documentation/userspace-api/media/v4l/buffer.rst +++ b/Documentation/userspace-api/media/v4l/buffer.rst @@ -696,7 +696,7 @@ enum v4l2_memory .. _memory-flags: -Memory Consistency Flags +Memory Flags ------------------------ .. raw:: latex @@ -728,6 +728,12 @@ Memory Consistency Flags only if the buffer is used for :ref:`memory mapping ` I/O and the queue reports the :ref:`V4L2_BUF_CAP_SUPPORTS_MMAP_CACHE_HINTS ` capability. + * .. _`V4L2-MEMORY-FLAG-SECURE`: + + - ``V4L2_MEMORY_FLAG_SECURE`` + - 0x00000002 + - DMA bufs passed into the queue will be validated to ensure they were + allocated from a secure dma-heap. .. raw:: latex