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 21FF8C4361B for ; Wed, 16 Dec 2020 10:36:43 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 9E09923104 for ; Wed, 16 Dec 2020 10:36:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E09923104 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 whitealder.osuosl.org (Postfix) with ESMTP id 54ED5868F6; Wed, 16 Dec 2020 10:36:42 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Yfo8+S3PlhPi; Wed, 16 Dec 2020 10:36:41 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id AA4AE868F2; Wed, 16 Dec 2020 10:36:41 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 959B1C088E; Wed, 16 Dec 2020 10:36:41 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id CBEE2C013B for ; Wed, 16 Dec 2020 10:36:40 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id BA54385E7D for ; Wed, 16 Dec 2020 10:36:40 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tUOEEoa6IKbV for ; Wed, 16 Dec 2020 10:36:40 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mailgw01.mediatek.com (unknown [210.61.82.183]) by fraxinus.osuosl.org (Postfix) with ESMTP id EB8CD85D8E for ; Wed, 16 Dec 2020 10:36:39 +0000 (UTC) X-UUID: 1a25c411904149898cff33a0774e6e54-20201216 X-UUID: 1a25c411904149898cff33a0774e6e54-20201216 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.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 634094253; Wed, 16 Dec 2020 18:36:35 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 16 Dec 2020 18:36:32 +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, 16 Dec 2020 18:36:31 +0800 From: Yong Wu To: Joerg Roedel , Will Deacon , Robin Murphy Subject: [PATCH v3 2/7] iommu: Add iova and size as parameters in iotlb_sync_map Date: Wed, 16 Dec 2020 18:36:02 +0800 Message-ID: <20201216103607.23050-3-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201216103607.23050-1-yong.wu@mediatek.com> References: <20201216103607.23050-1-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: youlin.pei@mediatek.com, anan.sun@mediatek.com, Nicolas Boichat , srv_heupstream@mediatek.com, chao.hao@mediatek.com, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Matthias Brugger , Greg Kroah-Hartman , kernel-team@android.com, 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" iotlb_sync_map allow IOMMU drivers tlb sync after completing the whole mapping. This patch adds iova and size as the parameters in it. then the IOMMU driver could flush tlb with the whole range once after iova mapping to improve performance. Signed-off-by: Yong Wu Reviewed-by: Robin Murphy --- drivers/iommu/iommu.c | 6 +++--- drivers/iommu/tegra-gart.c | 3 ++- include/linux/iommu.h | 3 ++- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index decef851fa3a..df87c8e825f7 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -2425,7 +2425,7 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova, might_sleep(); ret = __iommu_map(domain, iova, paddr, size, prot, GFP_KERNEL); if (ret == 0 && ops->iotlb_sync_map) - ops->iotlb_sync_map(domain); + ops->iotlb_sync_map(domain, iova, size); return ret; } @@ -2439,7 +2439,7 @@ int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova, ret = __iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC); if (ret == 0 && ops->iotlb_sync_map) - ops->iotlb_sync_map(domain); + ops->iotlb_sync_map(domain, iova, size); return ret; } @@ -2557,7 +2557,7 @@ static size_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova, } if (ops->iotlb_sync_map) - ops->iotlb_sync_map(domain); + ops->iotlb_sync_map(domain, iova, mapped); return mapped; out_err: diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c index fac720273889..d15d13a98ed1 100644 --- a/drivers/iommu/tegra-gart.c +++ b/drivers/iommu/tegra-gart.c @@ -261,7 +261,8 @@ static int gart_iommu_of_xlate(struct device *dev, return 0; } -static void gart_iommu_sync_map(struct iommu_domain *domain) +static void gart_iommu_sync_map(struct iommu_domain *domain, unsigned long iova, + size_t size) { FLUSH_GART_REGS(gart_handle); } diff --git a/include/linux/iommu.h b/include/linux/iommu.h index b95a6f8db6ff..794d4085edd3 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -244,7 +244,8 @@ struct iommu_ops { size_t (*unmap)(struct iommu_domain *domain, unsigned long iova, size_t size, struct iommu_iotlb_gather *iotlb_gather); void (*flush_iotlb_all)(struct iommu_domain *domain); - void (*iotlb_sync_map)(struct iommu_domain *domain); + void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova, + size_t size); void (*iotlb_sync)(struct iommu_domain *domain, struct iommu_iotlb_gather *iotlb_gather); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova); -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu