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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 28548C3F2C6 for ; Wed, 11 Mar 2020 12:47:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE1B424655 for ; Wed, 11 Mar 2020 12:47:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="d0OldcPY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729457AbgCKMrA (ORCPT ); Wed, 11 Mar 2020 08:47:00 -0400 Received: from mail-wm1-f67.google.com ([209.85.128.67]:37587 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729460AbgCKMrA (ORCPT ); Wed, 11 Mar 2020 08:47:00 -0400 Received: by mail-wm1-f67.google.com with SMTP id a141so1973045wme.2 for ; Wed, 11 Mar 2020 05:46:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=d7fzzw/5lEfLgru+68iO/J8krazqjJjWjKm9fH3TH5I=; b=d0OldcPYPTwC6lUxav+jf6KB+UcGBjwxPVFVLOS8P+DRcf4Nq9+Cgk3ER62YCupyKO n63Plm+lXXP1tDCSs66zuHCHs/M9n6CcfUD83j6S1A3sgTchEZWf/GNdy1+Sg6PJsXx7 v6vVCuz7+yMQ9U+jeSTzabfnBGdgbxAl7+8p5eiV0vMWAbcwpvxqhcw3kVlpD7RcuEis e5lM+BenuFHNorZQvoPD0B0I5/lix/gZ+JhB+tlQQjDMmJ4sZt8Pupm67tdBc4wFY0mf EgB/VSPg8NrV9V5qGawXDH19VqniDfIEy7gvlpILkFxSAN86lG2R7fZNu+SKWuDilrZc hdmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=d7fzzw/5lEfLgru+68iO/J8krazqjJjWjKm9fH3TH5I=; b=BqMnYN2abfk3d3rxmePpqOa7ytIZkFCL32Lzx4T9F9ijl9jsYzs5PTftBiZCeYcqtw /ttoH3YXVCrp0/vqhLfQbriDwc4vVH6Z/Jm64+U8MLU+THe/0fRftRRb+LEL9LZ/X7qs FBk5oxxKlkpcbBG5YAPVIBgHRut1a7zFgho+Wlr4sbKg9jxoxYGQqKiH4M8tiPNgVvxU JYUlPI7+MCgbGvYCFd2Do3N0D0HMNniwb8sPlqjkeIoDPQhoL4ecKAra+ALJYwVtx2KF 6kVJNWWligd3sBW3mA0ffnKv6ezXyazX2QuuUiQBJvXX6C/U2lsfOEIVv+u/VJdqtO0c Zd6g== X-Gm-Message-State: ANhLgQ3TAMdHbbc2Elto4vQOZgMgiN9+A7mCB2D2t40L5xp7FQM2MA7Q /VTWJyMV7EJo3pIJcNHSHNPGPA== X-Google-Smtp-Source: ADFU+vtrrbz3xW1uwROP0nlDBlOyziir6FkZYgi3Shk3F4IjgLnSc2vkzPiEnYQH9VQXQDGBOwBJWg== X-Received: by 2002:a1c:7e08:: with SMTP id z8mr3550520wmc.166.1583930818310; Wed, 11 Mar 2020 05:46:58 -0700 (PDT) Received: from localhost.localdomain ([2001:171b:c9a8:fbc0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id c2sm8380020wma.39.2020.03.11.05.46.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 05:46:57 -0700 (PDT) From: Jean-Philippe Brucker To: bhelgaas@google.com, will@kernel.org, robh+dt@kernel.org, joro@8bytes.org, baolu.lu@linux.intel.com, sudeep.holla@arm.com, linux-doc@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org Cc: lorenzo.pieralisi@arm.com, corbet@lwn.net, mark.rutland@arm.com, liviu.dudau@arm.com, guohanjun@huawei.com, rjw@rjwysocki.net, lenb@kernel.org, robin.murphy@arm.com, dwmw2@infradead.org, amurray@thegoodpenguin.co.uk, frowand.list@gmail.com, Jean-Philippe Brucker Subject: [PATCH v2 03/11] PCI: OF: Check whether the host bridge supports ATS Date: Wed, 11 Mar 2020 13:44:58 +0100 Message-Id: <20200311124506.208376-4-jean-philippe@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200311124506.208376-1-jean-philippe@linaro.org> References: <20200311124506.208376-1-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org When setting up a generic host on a device-tree based system, copy the ats-supported flag into the pci_host_bridge structure. Signed-off-by: Jean-Philippe Brucker --- v1->v2: keep the helper in pci-host-common.c --- drivers/pci/controller/pci-host-common.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c index 250a3fc80ec6..2e800bc6ae7a 100644 --- a/drivers/pci/controller/pci-host-common.c +++ b/drivers/pci/controller/pci-host-common.c @@ -54,6 +54,16 @@ static struct pci_config_window *gen_pci_init(struct device *dev, return ERR_PTR(err); } +static void of_pci_host_check_ats(struct pci_host_bridge *bridge) +{ + struct device_node *np = bridge->bus->dev.of_node; + + if (!np) + return; + + bridge->ats_supported = of_property_read_bool(np, "ats-supported"); +} + int pci_host_common_probe(struct platform_device *pdev, struct pci_ecam_ops *ops) { @@ -92,6 +102,7 @@ int pci_host_common_probe(struct platform_device *pdev, return ret; } + of_pci_host_check_ats(bridge); platform_set_drvdata(pdev, bridge->bus); return 0; } -- 2.25.1