From patchwork Mon Jan 25 11:06:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 12047943 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 7616FC433E9 for ; Tue, 26 Jan 2021 19:12:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40A0522A85 for ; Tue, 26 Jan 2021 19:12:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728384AbhAZF6G (ORCPT ); Tue, 26 Jan 2021 00:58:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728395AbhAYMuU (ORCPT ); Mon, 25 Jan 2021 07:50:20 -0500 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42FA3C0612F2 for ; Mon, 25 Jan 2021 03:08:54 -0800 (PST) Received: by mail-wr1-x435.google.com with SMTP id p15so5231392wrq.8 for ; Mon, 25 Jan 2021 03:08:54 -0800 (PST) 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=P/EAy3wFo2SkAvzlEqANsfgzLeO0MB9eAURTmLNsvNA=; b=hn7k9YBrpbYNaKrAacJHgdQijWZghUPi3Iv6zU06UxFqaoM6CS1UbqtknoP0o2EYtg B4SlQ+8/0UDOp6kFcPYo7zeG7dDFCiQ42Bf8cd62mIK1oyjO5yqUyY5/Z9NO1CCEjIqF /AlTjnPryDQ833VP2jsLn7eScdSvT5H1N/afnru2UDmPA/nsLXS7u3+txOfIzwwlT2ED ixEkaN2yIDalNKbCKVn5d/Ji12naseZlZUxo+FJcEb0k1M0QCSwvdalS8aIAj+bOeTx2 Bh2aW/dDFeqvnxAjNunComt/RSTHyfjg+DFVN85ttExE9Q2MlJKK4QEsbi23b+YkcRQH lsJg== 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=P/EAy3wFo2SkAvzlEqANsfgzLeO0MB9eAURTmLNsvNA=; b=pkhFeMVUprr+E3NbTQSBtHjedDC4PZupZoIQGXOF6qY2onS8iuGSeYdxgoZ0Mz0MVr Lqs6AlLSqLmELDADvprAevsLDYwdt8T2ON0lE+8ldzh+DBdj1FFD+TbNJMQUcAtYu82n +LL5stNQOGwTyRtnSFUt8w+STGOmlx5NvUjpxpcM8xQhF7Kl4i7g+fQYAyZtF4Uvhz/S 6Yy2V5J2MVCFl8ngziFfheYnnbQ9z2AT0Rp+tpSWLwEK6w07KGC3iYsfkrX8rZcdbbMl f+znHf0u62PVUyvna6VDV4A1zGQxq0y0ANZv2TZViYERgQTFlgA54Sv0fgHrE+OHcOZo cjbw== X-Gm-Message-State: AOAM533dgqH4yFETrGiI6Xuoq2d/U2cYgSEwgz6fVEgGz3pNTSob76ES OojKR6wTVlxceBt3jX6QlOwgVA== X-Google-Smtp-Source: ABdhPJyVElzzeAd4ZjJ6V4zQww4oY0c7GjWrC1TgJ7Hk43RJ5Qo9N0m7RbOAKVLJRgo9wI5qazqv3w== X-Received: by 2002:adf:eed0:: with SMTP id a16mr293691wrp.107.1611572932965; Mon, 25 Jan 2021 03:08:52 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id u6sm16636014wro.75.2021.01.25.03.08.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Jan 2021 03:08:52 -0800 (PST) From: Jean-Philippe Brucker To: joro@8bytes.org, will@kernel.org Cc: lorenzo.pieralisi@arm.com, robh+dt@kernel.org, guohanjun@huawei.com, sudeep.holla@arm.com, rjw@rjwysocki.net, lenb@kernel.org, robin.murphy@arm.com, Jonathan.Cameron@huawei.com, eric.auger@redhat.com, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-accelerators@lists.ozlabs.org, baolu.lu@linux.intel.com, jacob.jun.pan@linux.intel.com, kevin.tian@intel.com, vdumpa@nvidia.com, zhangfei.gao@linaro.org, shameerali.kolothum.thodi@huawei.com, vivek.gautam@arm.com, Jean-Philippe Brucker Subject: [PATCH v11 09/10] ACPI/IORT: Enable stall support for platform devices Date: Mon, 25 Jan 2021 12:06:50 +0100 Message-Id: <20210125110650.3232195-10-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210125110650.3232195-1-jean-philippe@linaro.org> References: <20210125110650.3232195-1-jean-philippe@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Copy the "Stall supported" bit, that tells whether a named component supports stall, into the dma-can-stall device property. Acked-by: Jonathan Cameron Signed-off-by: Jean-Philippe Brucker --- drivers/acpi/arm64/iort.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index c9a8bbb74b09..42820d7eb869 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -968,13 +968,15 @@ static int iort_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) static void iort_named_component_init(struct device *dev, struct acpi_iort_node *node) { - struct property_entry props[2] = {}; + struct property_entry props[3] = {}; struct acpi_iort_named_component *nc; nc = (struct acpi_iort_named_component *)node->node_data; props[0] = PROPERTY_ENTRY_U32("pasid-num-bits", FIELD_GET(ACPI_IORT_NC_PASID_BITS, nc->node_flags)); + if (nc->node_flags & ACPI_IORT_NC_STALL_SUPPORTED) + props[1] = PROPERTY_ENTRY_BOOL("dma-can-stall"); if (device_add_properties(dev, props)) dev_warn(dev, "Could not add device properties\n");