From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CFFCC4167B for ; Wed, 9 Dec 2020 08:03:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0A7C223BB5 for ; Wed, 9 Dec 2020 08:03:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728513AbgLIICz (ORCPT ); Wed, 9 Dec 2020 03:02:55 -0500 Received: from mailgw02.mediatek.com ([210.61.82.184]:45258 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726449AbgLIICm (ORCPT ); Wed, 9 Dec 2020 03:02:42 -0500 X-UUID: bda078e12a65473a8c6ec9539b6e132c-20201209 X-UUID: bda078e12a65473a8c6ec9539b6e132c-20201209 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1960935038; Wed, 09 Dec 2020 16:01:59 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 9 Dec 2020 16:01:58 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 9 Dec 2020 16:01:58 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Rob Herring , Will Deacon , Robin Murphy CC: Krzysztof Kozlowski , Evan Green , Tomasz Figa , , , , , , , , , Nicolas Boichat , , Subject: [PATCH v5 04/27] dt-bindings: memory: mediatek: Add domain definition Date: Wed, 9 Dec 2020 16:00:39 +0800 Message-ID: <20201209080102.26626-5-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201209080102.26626-1-yong.wu@mediatek.com> References: <20201209080102.26626-1-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In the latest SoC, there are several HW IP require a sepecial iova range, mainly CCU and VPU has this requirement. Take CCU as a example, CCU require its iova locate in the range(0x4000_0000 ~ 0x43ff_ffff). In this patch we add a domain definition for the special port. In the example of CCU, If we preassign CCU port in domain1, then iommu driver will prepare a independent iommu domain of the special iova range for it, then the iova got from dma_alloc_attrs(ccu-dev) will locate in its special range. This is a preparing patch for multi-domain support. Signed-off-by: Yong Wu Acked-by: Krzysztof Kozlowski Acked-by: Rob Herring --- include/dt-bindings/memory/mtk-smi-larb-port.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/include/dt-bindings/memory/mtk-smi-larb-port.h b/include/dt-bindings/memory/mtk-smi-larb-port.h index 7d64103209af..2d4c973c174f 100644 --- a/include/dt-bindings/memory/mtk-smi-larb-port.h +++ b/include/dt-bindings/memory/mtk-smi-larb-port.h @@ -7,9 +7,16 @@ #define __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_ #define MTK_LARB_NR_MAX 32 +#define MTK_M4U_DOM_NR_MAX 8 + +#define MTK_M4U_DOM_ID(domid, larb, port) \ + (((domid) & 0x7) << 16 | (((larb) & 0x1f) << 5) | ((port) & 0x1f)) + +/* The default dom id is 0. */ +#define MTK_M4U_ID(larb, port) MTK_M4U_DOM_ID(0, larb, port) -#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port)) #define MTK_M4U_TO_LARB(id) (((id) >> 5) & 0x1f) #define MTK_M4U_TO_PORT(id) ((id) & 0x1f) +#define MTK_M4U_TO_DOM(id) (((id) >> 16) & 0x7) #endif -- 2.18.0