From patchwork Thu Jan 21 12:36:23 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: 12036013 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=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 47CBAC433DB for ; Thu, 21 Jan 2021 12:42:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE13D23A01 for ; Thu, 21 Jan 2021 12:42:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730059AbhAUMmC (ORCPT ); Thu, 21 Jan 2021 07:42:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731458AbhAUMld (ORCPT ); Thu, 21 Jan 2021 07:41:33 -0500 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C67EAC0617A1 for ; Thu, 21 Jan 2021 04:39:43 -0800 (PST) Received: by mail-wm1-x331.google.com with SMTP id e15so1400811wme.0 for ; Thu, 21 Jan 2021 04:39:43 -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=34NOfBoAQbhC4EqUo+bMrvAxSDfvSBJrgTwiEwqrJqM=; b=jh49AsG8Ku0X4MhQbeMX7gD6G5UG3nPk0+s0Syjj6Dy+TDWxpcfUm1e3LYSB6p4OvM Kg7SYcQuula7b+NVb/TXvcqksYjq2JPVI+6D1CxevtRxa9tZYqhap6+zOMQBpd649qPu zaQFYlaVbzfUOo3p1I61spJduaApW3KsUwNjJLUqaBOV7hqUtwjm9KtGxYIFztBX1RNI zbgYMQFWzDmEv+XcAHZckcAKOvqzmBgM1inzWfUawY2CEgxYMsTNSC+E/Z93Z1mv+ka6 VEMPecgh4nyCWC/EWc1m7jDWKJD8cj6xR21JNGmxdyy9qYq6kAm5HvjThelK7GRoVVtx bR7A== 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=34NOfBoAQbhC4EqUo+bMrvAxSDfvSBJrgTwiEwqrJqM=; b=iDEqBs5mRXixzh4cwQa4SgNfbniVUHrPQaCnorKm+OjAZMHizIc7X9V9Voy1m/bCtW bkStDk1ZB2glg/3GdUf4ORRwsLadnIjT2d+ai8D3pSN+lUQ24B6QiU2Y1x9SLrWmuATX vcFa4BljCmBnogUY5MFqLfSnBQnx5T+YcP7nNTd+4SnbPGE6v5K9idZIWQejgnEByaOn HypDlnny0KiaxVPlWlmxP6hyGX43HvGNBOcSGJ19TtYVqtiwwwqMxva4AgAZDflu5rtZ SD2xzSLVnCJh9bboxt94rwmmlF9tBPoX2m4yVckNYKF8MMFsPP3z63z9qMAi42khskNy bjRg== X-Gm-Message-State: AOAM5314TU1vjbzkzu1fkEExwOJ/aROj5IVQt5FffPJw9QVWVSWfjC1h GC/jIKkC5Z7z2mbT0tEl2rIU+Q== X-Google-Smtp-Source: ABdhPJy4aVE7nUGRBVsnvQda65l+P+gt53hIs8sV+GNjymDZ9tsnP67X7H+cf54+VmJof+s0v8IZkw== X-Received: by 2002:a1c:5403:: with SMTP id i3mr8695684wmb.87.1611232782538; Thu, 21 Jan 2021 04:39:42 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id p18sm7979248wmc.31.2021.01.21.04.39.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jan 2021 04:39:41 -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 v10 09/10] ACPI/IORT: Enable stall support for platform devices Date: Thu, 21 Jan 2021 13:36:23 +0100 Message-Id: <20210121123623.2060416-10-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210121123623.2060416-1-jean-philippe@linaro.org> References: <20210121123623.2060416-1-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. Signed-off-by: Jean-Philippe Brucker Acked-by: Jonathan Cameron --- 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");