From patchwork Tue Dec 12 02:46:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WW9uZyBXdSAo5ZC05YuHKQ==?= X-Patchwork-Id: 97924 Received: from ny.mirrors.kernel.org ([147.75.199.223]) by www.linuxtv.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rCsnQ-0041Ci-DO for patchwork@linuxtv.org; Tue, 12 Dec 2023 02:46:56 +0000 Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 8F1001C2164E for ; Tue, 12 Dec 2023 02:46:53 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B210B3D90; Tue, 12 Dec 2023 02:46:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="bCsofGBP" X-Original-To: linux-media@vger.kernel.org Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CB05BA; Mon, 11 Dec 2023 18:46:41 -0800 (PST) X-UUID: aa51f970989811eea5db2bebc7c28f94-20231212 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=HYHZew6lf/mOP5U23ofsnX7zKCjL+zhlga53OrTPXp0=; b=bCsofGBPHdWhd4pb91y8U9CLi9zWC80773HK7n1jye/bfyTZjLtl/pl5oC+jjD7T2Lq21b4CDHJZJuuv4w0kmUCk8FafAGQeIKdwlffubpR4KpZoNKTiAAsfYIdl3X3mRGZmzp+13CPClmUh+OC9EfWslitTllzUeULPLR0ipF0=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35,REQID:15359fc6-cf38-4a33-95ca-b761993bbad5,IP:0,U RL:25,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:25 X-CID-META: VersionHash:5d391d7,CLOUDID:1dd98efd-4a48-46e2-b946-12f04f20af8c,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,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 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: aa51f970989811eea5db2bebc7c28f94-20231212 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 413819834; Tue, 12 Dec 2023 10:46:35 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) 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; Tue, 12 Dec 2023 10:46:34 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 12 Dec 2023 10:46:33 +0800 From: Yong Wu To: Rob Herring , Sumit Semwal , , Matthias Brugger CC: Krzysztof Kozlowski , Conor Dooley , Benjamin Gaignard , Brian Starkey , John Stultz , , AngeloGioacchino Del Regno , Yong Wu , , , , , , , , , , Vijayanand Jitta , Joakim Bech , Jeffrey Kardatzke , Nicolas Dufresne , Subject: [PATCH v3 1/7] dt-bindings: reserved-memory: Add mediatek,dynamic-secure-region Date: Tue, 12 Dec 2023 10:46:01 +0800 Message-ID: <20231212024607.3681-2-yong.wu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231212024607.3681-1-yong.wu@mediatek.com> References: <20231212024607.3681-1-yong.wu@mediatek.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N X-LSpam-Score: -4.8 (----) X-LSpam-Report: No, score=-4.8 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_DNSWL_MED=-2.3,UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no Add a binding for describing the dynamic secure reserved memory range. The memory range also will be defined in the TEE firmware. It means the TEE will be configured with the same address/size that is being set in this DT node. Regarding to the detail TEE command, Please search MTK_TZCMD_SECMEM_ZALLOC and MTK_TZCMD_SECMEM_FREE. Signed-off-by: Yong Wu --- .../mediatek,dynamic-secure-region.yaml | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/reserved-memory/mediatek,dynamic-secure-region.yaml diff --git a/Documentation/devicetree/bindings/reserved-memory/mediatek,dynamic-secure-region.yaml b/Documentation/devicetree/bindings/reserved-memory/mediatek,dynamic-secure-region.yaml new file mode 100644 index 000000000000..4a735aeafc62 --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/mediatek,dynamic-secure-region.yaml @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reserved-memory/mediatek,dynamic-secure-region.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek Dynamic Reserved Region + +description: + A memory region that can dynamically transition as a whole between + secure and non-secure states. This memory will be protected by OP-TEE + when allocations are active and unprotected otherwise. + +maintainers: + - Yong Wu + +allOf: + - $ref: reserved-memory.yaml + +properties: + compatible: + const: mediatek,dynamic-secure-region + +required: + - compatible + - reg + - reusable + +unevaluatedProperties: false + +examples: + - | + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + reserved-memory@80000000 { + compatible = "mediatek,dynamic-secure-region"; + reg = <0x80000000 0x18000000>; + reusable; + }; + };