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 AFA24C63798 for ; Thu, 19 Nov 2020 06:19:20 +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 11CB4246A5 for ; Thu, 19 Nov 2020 06:19:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 11CB4246A5 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 97A7F86B74; Thu, 19 Nov 2020 06:19:19 +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 mRUCkV4O966H; Thu, 19 Nov 2020 06:19:19 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by whitealder.osuosl.org (Postfix) with ESMTP id F000D86B68; Thu, 19 Nov 2020 06:19:18 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id CFD56C0891; Thu, 19 Nov 2020 06:19:18 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 33199C07FF for ; Thu, 19 Nov 2020 06:19:17 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 2F1D7834A1 for ; Thu, 19 Nov 2020 06:19:17 +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 lVAQ_sxCywjQ for ; Thu, 19 Nov 2020 06:19:16 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by fraxinus.osuosl.org (Postfix) with ESMTP id 9359A8086A for ; Thu, 19 Nov 2020 06:19:16 +0000 (UTC) X-UUID: c699f1342b924e3fb40ede5a158461b5-20201119 X-UUID: c699f1342b924e3fb40ede5a158461b5-20201119 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] 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 1858901902; Thu, 19 Nov 2020 14:19:14 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 19 Nov 2020 14:19:12 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 19 Nov 2020 14:19:11 +0800 From: Yong Wu To: Joerg Roedel , Will Deacon , Robin Murphy Subject: [PATCH v2 4/6] iommu: Add granule_ignore when tlb gather Date: Thu, 19 Nov 2020 14:18:34 +0800 Message-ID: <20201119061836.15238-5-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201119061836.15238-1-yong.wu@mediatek.com> References: <20201119061836.15238-1-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 , jun.wen@mediatek.com, Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, Matthias Brugger , 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" Add a granule_ignore option when tlb gather for some HW which don't care about granule when it flush tlb. Signed-off-by: Yong Wu --- include/linux/iommu.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 794d4085edd3..1aad32238510 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -171,6 +171,7 @@ enum iommu_dev_features { * @start: IOVA representing the start of the range to be flushed * @end: IOVA representing the end of the range to be flushed (exclusive) * @pgsize: The interval at which to perform the flush + * @granule_ignore: For tlb flushing that could be regardless of granule. * * This structure is intended to be updated by multiple calls to the * ->unmap() function in struct iommu_ops before eventually being passed @@ -180,6 +181,7 @@ struct iommu_iotlb_gather { unsigned long start; unsigned long end; size_t pgsize; + bool granule_ignore; }; /** @@ -544,7 +546,7 @@ static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain, * a different granularity, then sync the TLB so that the gather * structure can be rewritten. */ - if (gather->pgsize != size || + if ((!gather->granule_ignore && gather->pgsize != size) || end < gather->start || start > gather->end) { if (gather->pgsize) iommu_iotlb_sync(domain, gather); -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu