From patchwork Mon Apr 20 14:37:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sai Prakash Ranjan X-Patchwork-Id: 189516 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 122B4C54FD0 for ; Mon, 20 Apr 2020 14:38:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E5D86218AC for ; Mon, 20 Apr 2020 14:38:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="Tw2uAOb2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729975AbgDTOi1 (ORCPT ); Mon, 20 Apr 2020 10:38:27 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:53892 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726679AbgDTOi0 (ORCPT ); Mon, 20 Apr 2020 10:38:26 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1587393506; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=6oXSNBfaCMgK4V+qkJIbk51bHz/GOnkwAjXuLtbMAus=; b=Tw2uAOb2ynmL85ENtG7TUgQCPCNPC+1VjXP+TN68Ykv5Q3ctgj7sOtiNkfOsk4QEl15JoDPu Sgf0co6Xh5/XfhY4sbwXiuaZy+dAcBSCukQBRuG3W5Q9AHT8KUGnKv+APSGpFfzLooMGUkn9 gCYboQ7tFJnhRIoyqOtrPNLmQw0= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e9db3b8.7f7bba0b1308-smtp-out-n05; Mon, 20 Apr 2020 14:37:44 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 15B09C44788; Mon, 20 Apr 2020 14:37:43 +0000 (UTC) Received: from blr-ubuntu-311.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan) by smtp.codeaurora.org (Postfix) with ESMTPSA id DDF82C44795; Mon, 20 Apr 2020 14:37:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DDF82C44795 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=saiprakash.ranjan@codeaurora.org From: Sai Prakash Ranjan To: Will Deacon , Robin Murphy , Joerg Roedel , Sibi Sankar , Bjorn Andersson , Jordan Crouse , Rob Clark Cc: Stephen Boyd , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Matthias Kaehlcke , Evan Green , Sai Prakash Ranjan Subject: [PATCHv2 3/6] iommu/arm-smmu: Implement iommu_ops->def_domain_type call-back Date: Mon, 20 Apr 2020 20:07:07 +0530 Message-Id: <558b1aee4c699a0a5b14b325178d22a79958488f.1587392905.git.saiprakash.ranjan@codeaurora.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Implement the new def_domain_type call-back for the ARM SMMU driver. We need this to support requesting the domain type by the client devices. Signed-off-by: Sai Prakash Ranjan --- drivers/iommu/arm-smmu.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index e622f4e33379..b5d1d52dfbb8 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1609,6 +1609,25 @@ static void arm_smmu_get_resv_regions(struct device *dev, iommu_dma_get_resv_regions(dev, head); } +static int arm_smmu_def_domain_type(struct device *dev) +{ + struct iommu_fwspec *fwspec; + struct arm_smmu_device *smmu; + + fwspec = dev_iommu_fwspec_get(dev); + if (!fwspec || fwspec->ops != &arm_smmu_ops) + return -ENODEV; + + smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode); + if (!smmu) + return -ENODEV; + + if (smmu->impl && smmu->impl->req_domain) + return smmu->impl->req_domain(dev); + + return 0; +} + static struct iommu_ops arm_smmu_ops = { .capable = arm_smmu_capable, .domain_alloc = arm_smmu_domain_alloc, @@ -1627,6 +1646,7 @@ static struct iommu_ops arm_smmu_ops = { .of_xlate = arm_smmu_of_xlate, .get_resv_regions = arm_smmu_get_resv_regions, .put_resv_regions = generic_iommu_put_resv_regions, + .def_domain_type = arm_smmu_def_domain_type, .pgsize_bitmap = -1UL, /* Restricted during device attach */ };