From patchwork Fri May 7 10:22:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhukeqian X-Patchwork-Id: 12244315 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=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 6C47BC43461 for ; Fri, 7 May 2021 10:26:41 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 EB7CD6145E for ; Fri, 7 May 2021 10:26:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EB7CD6145E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=l8mFC8o0Xq52i+hdhSJ1Dtj3e4/vp4KjIIc/D+7TGgY=; b=bDmxMMdm73UOmeC68/cHkZqRl oESIa9mRaWi/uhm1bP78Is2910JiaCIW1EcZK8QWVNms/l85vIGmVa1HgOdykb2cGLryniygVTQgR SFxkfQRXcT5GJRTKgjpHMc8VXPiCIK/Y1XiVmqC3i6TKsz5Jx195butjc3RpZjCq5x26X5CanYnBV u3KusF3j1EVwpzxIqmxvM9I/vqvuBzF+PJGJX8+Wj/L959jbW4LgfzZwYs6G8zRTMqRDahi7z9ft2 I1LvDPjq+DsHXs+t2GLf4IRkWM4S6WcEBba7FUsELInblxHBrZb8z1iKudopCunxCJY7H41NAyjzg zZ80dc9pg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lexfE-006o2R-D5; Fri, 07 May 2021 10:24:57 +0000 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lexdF-006nOb-Rf for linux-arm-kernel@desiato.infradead.org; Fri, 07 May 2021 10:22:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Type:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Jn+tNLmvOy1rUPlCgEHGPj9SG+GaBiTJXAa4VP5exSs=; b=OWYs0bufaBtOAPUG8rHIRiOhRY kgjqERDu0mKttSjboLMyxCJRBYB5friu+fyH+UhSnWs0dPNRhZtAiA59z2emFcJG2ccu1Dbbpuqmf o6Qam3fD9giGvzkOiLeXau3P1kZnivZTidDi4VAxzvDNuZL1ogodlOtncsTEpxb9kF+pE7NlR4Ge0 KmGmMLwzxsmOF0z9gYlQn6y/N9bELM9ZvNnW3GIDWH007l7e1zyvWXxpjrdW4XnRaKbF9VrkDKYkC TBs9R7o+Qxu6w9MJzt4s8kz/b+yKlg5x19mWjFQIOTXctqu8rnqi07Ev/LUbwOULSVb0Wyj37MBtI ZIXhX8Zg==; Received: from szxga07-in.huawei.com ([45.249.212.35]) by bombadil.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lexdC-006mAF-FC for linux-arm-kernel@lists.infradead.org; Fri, 07 May 2021 10:22:52 +0000 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4Fc5zw3TcbzCr3x; Fri, 7 May 2021 18:20:12 +0800 (CST) Received: from DESKTOP-5IS4806.china.huawei.com (10.174.187.224) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.498.0; Fri, 7 May 2021 18:22:41 +0800 From: Keqian Zhu To: , , , Robin Murphy , "Will Deacon" , Joerg Roedel , "Jean-Philippe Brucker" , Lu Baolu , "Yi Sun" , Tian Kevin CC: Alex Williamson , Kirti Wankhede , Cornelia Huck , Jonathan Cameron , , , , Subject: [RFC PATCH v4 12/13] iommu/arm-smmu-v3: Realize clear_dirty_log iommu ops Date: Fri, 7 May 2021 18:22:10 +0800 Message-ID: <20210507102211.8836-13-zhukeqian1@huawei.com> X-Mailer: git-send-email 2.8.4.windows.1 In-Reply-To: <20210507102211.8836-1-zhukeqian1@huawei.com> References: <20210507102211.8836-1-zhukeqian1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.187.224] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210507_032250_712286_FB1C2F6F X-CRM114-Status: UNSURE ( 9.79 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Kunkun Jiang This realizes clear_dirty_log iommu ops based on clear_dirty_log io-pgtable ops. Co-developed-by: Keqian Zhu Signed-off-by: Kunkun Jiang --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 25 +++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 3d3c0f8e2446..9b4739247dbb 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2750,6 +2750,30 @@ static int arm_smmu_sync_dirty_log(struct iommu_domain *domain, bitmap_pgshift); } +static int arm_smmu_clear_dirty_log(struct iommu_domain *domain, + unsigned long iova, size_t size, + unsigned long *bitmap, + unsigned long base_iova, + unsigned long bitmap_pgshift) +{ + struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain); + struct io_pgtable_ops *ops = smmu_domain->pgtbl_ops; + struct arm_smmu_device *smmu = smmu_domain->smmu; + + if (!(smmu->features & ARM_SMMU_FEAT_HD)) + return -ENODEV; + if (smmu_domain->stage != ARM_SMMU_DOMAIN_S1) + return -EINVAL; + + if (!ops || !ops->clear_dirty_log) { + pr_err("io-pgtable don't realize clear dirty log\n"); + return -ENODEV; + } + + return ops->clear_dirty_log(ops, iova, size, bitmap, base_iova, + bitmap_pgshift); +} + static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args) { return iommu_fwspec_add_ids(dev, args->args, 1); @@ -2850,6 +2874,7 @@ static struct iommu_ops arm_smmu_ops = { .enable_nesting = arm_smmu_enable_nesting, .switch_dirty_log = arm_smmu_switch_dirty_log, .sync_dirty_log = arm_smmu_sync_dirty_log, + .clear_dirty_log = arm_smmu_clear_dirty_log, .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions,