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=-12.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 C42A8C4346E for ; Sun, 27 Sep 2020 06:40:59 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 71FFA221E5 for ; Sun, 27 Sep 2020 06:40:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71FFA221E5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.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 silver.osuosl.org (Postfix) with ESMTP id 4471F204FF; Sun, 27 Sep 2020 06:40:59 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bOYg6Nc75ut0; Sun, 27 Sep 2020 06:40:57 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id CBDEB204FC; Sun, 27 Sep 2020 06:40:57 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B5FD8C0889; Sun, 27 Sep 2020 06:40:57 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 52C65C0051 for ; Sun, 27 Sep 2020 06:40:55 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 4F029863B7 for ; Sun, 27 Sep 2020 06:40:55 +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 lraY5bVy5JR1 for ; Sun, 27 Sep 2020 06:40:54 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by whitealder.osuosl.org (Postfix) with ESMTPS id B435D8616F for ; Sun, 27 Sep 2020 06:40:54 +0000 (UTC) IronPort-SDR: /JxeBeS83hM2PmgBbdVXtNP7ArDIAaVTYW/QSvmfy6mJxub1V6a6g5oYWzNcjzEYw1mLwCFl7l Pk8zW1d+CXFQ== X-IronPort-AV: E=McAfee;i="6000,8403,9756"; a="159232603" X-IronPort-AV: E=Sophos;i="5.77,309,1596524400"; d="scan'208";a="159232603" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2020 23:40:54 -0700 IronPort-SDR: r5UspS/PTI1HWmhhCDNu64H/SAJpqNXDdFZwDTieAamkxBopgRE31drz4xt9nIC5hd3CO99ZZ4 s1Pnszlj9zng== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,309,1596524400"; d="scan'208";a="349457821" Received: from allen-box.sh.intel.com ([10.239.159.139]) by FMSMGA003.fm.intel.com with ESMTP; 26 Sep 2020 23:40:52 -0700 From: Lu Baolu To: Joerg Roedel , Tom Murphy , David Woodhouse , Christoph Hellwig Subject: [PATCH v4 2/7] iommu: Add iommu_dma_free_cpu_cached_iovas() Date: Sun, 27 Sep 2020 14:34:32 +0800 Message-Id: <20200927063437.13988-3-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200927063437.13988-1-baolu.lu@linux.intel.com> References: <20200927063437.13988-1-baolu.lu@linux.intel.com> Cc: Tvrtko Ursulin , Ashok Raj , Intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.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: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" From: Tom Murphy Add a iommu_dma_free_cpu_cached_iovas function to allow drivers which use the dma-iommu ops to free cached cpu iovas. Signed-off-by: Tom Murphy Signed-off-by: Lu Baolu --- drivers/iommu/dma-iommu.c | 9 +++++++++ include/linux/dma-iommu.h | 8 ++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index 1b8ef3a2cbc3..fb84cfa83703 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -50,6 +50,15 @@ struct iommu_dma_cookie { struct iommu_domain *fq_domain; }; +void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, + struct iommu_domain *domain) +{ + struct iommu_dma_cookie *cookie = domain->iova_cookie; + struct iova_domain *iovad = &cookie->iovad; + + free_cpu_cached_iovas(cpu, iovad); +} + static void iommu_dma_entry_dtor(unsigned long data) { struct page *freelist = (struct page *)data; diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h index 2112f21f73d8..706b68d1359b 100644 --- a/include/linux/dma-iommu.h +++ b/include/linux/dma-iommu.h @@ -37,6 +37,9 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc, void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list); +void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, + struct iommu_domain *domain); + #else /* CONFIG_IOMMU_DMA */ struct iommu_domain; @@ -78,5 +81,10 @@ static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_he { } +static inline void iommu_dma_free_cpu_cached_iovas(unsigned int cpu, + struct iommu_domain *domain) +{ +} + #endif /* CONFIG_IOMMU_DMA */ #endif /* __DMA_IOMMU_H */ -- 2.17.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu