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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 1CA1BC5517A for ; Wed, 11 Nov 2020 12:40:47 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AB82220709 for ; Wed, 11 Nov 2020 12:40:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB82220709 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 2AB3787552; Wed, 11 Nov 2020 12:40:46 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DV3+DphzELYi; Wed, 11 Nov 2020 12:40:45 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 9C9588754B; Wed, 11 Nov 2020 12:40:45 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 879FFC088B; Wed, 11 Nov 2020 12:40:45 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 36065C016F for ; Wed, 11 Nov 2020 12:40:44 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 243FE8754B for ; Wed, 11 Nov 2020 12:40:44 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TXuuPxWTBXmm for ; Wed, 11 Nov 2020 12:40:43 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by hemlock.osuosl.org (Postfix) with ESMTP id 74F7B87528 for ; Wed, 11 Nov 2020 12:40:43 +0000 (UTC) X-UUID: 36782ec0e71e4718b83dad8ac4b61e77-20201111 X-UUID: 36782ec0e71e4718b83dad8ac4b61e77-20201111 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] 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 167266823; Wed, 11 Nov 2020 20:40:40 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 11 Nov 2020 20:40:37 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 11 Nov 2020 20:40:37 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Rob Herring , Will Deacon , Robin Murphy Subject: [PATCH v4 12/24] iommu/mediatek: Move hw_init into attach_device Date: Wed, 11 Nov 2020 20:38:26 +0800 Message-ID: <20201111123838.15682-13-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201111123838.15682-1-yong.wu@mediatek.com> References: <20201111123838.15682-1-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , srv_heupstream@mediatek.com, chao.hao@mediatek.com, kernel-team@android.com, linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Krzysztof Kozlowski , anan.sun@mediatek.com, Greg Kroah-Hartman , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" In attach device, it will update the pagetable base address register. Move the hw_init function also here. Then it only need call pm_runtime_get/put one time here if m4u has power domain. Signed-off-by: Yong Wu --- drivers/iommu/mtk_iommu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 55f9b329e637..cfdf5ce696fd 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -125,6 +125,8 @@ struct mtk_iommu_domain { static const struct iommu_ops mtk_iommu_ops; +static int mtk_iommu_hw_init(const struct mtk_iommu_data *data); + /* * In M4U 4GB mode, the physical address is remapped as below: * @@ -380,12 +382,16 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain, { struct mtk_iommu_data *data = dev_iommu_priv_get(dev); struct mtk_iommu_domain *dom = to_mtk_domain(domain); + int ret; if (!data) return -ENODEV; /* Update the pgtable base address register of the M4U HW */ if (!data->m4u_dom) { + ret = mtk_iommu_hw_init(data); + if (ret) + return ret; data->m4u_dom = dom; writel(dom->cfg.arm_v7s_cfg.ttbr & MMU_PT_ADDR_MASK, data->base + REG_MMU_PT_BASE_ADDR); @@ -729,10 +735,6 @@ static int mtk_iommu_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); - ret = mtk_iommu_hw_init(data); - if (ret) - return ret; - ret = iommu_device_sysfs_add(&data->iommu, dev, NULL, "mtk-iommu.%pa", &ioaddr); if (ret) -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu