From patchwork Tue Mar 2 09:26:45 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: 12111469 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=-18.7 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 4125EC433DB for ; Tue, 2 Mar 2021 11:22:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E938A64EF4 for ; Tue, 2 Mar 2021 11:22:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446533AbhCBLSA (ORCPT ); Tue, 2 Mar 2021 06:18:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379099AbhCBJja (ORCPT ); Tue, 2 Mar 2021 04:39:30 -0500 Received: from mail-wr1-x42a.google.com (mail-wr1-x42a.google.com [IPv6:2a00:1450:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7C2B4C061225 for ; Tue, 2 Mar 2021 01:35:41 -0800 (PST) Received: by mail-wr1-x42a.google.com with SMTP id d15so3860194wrv.5 for ; Tue, 02 Mar 2021 01:35:41 -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=Tljaa6sLGzqVEkWTy8WFZ8+1JVN/U6naVu2IpICY8qc=; b=CUqHhZIYRju55gc+SgJJfVnY562fuTxugAA10rym5tTkb8g8m152o+DT++duK/z+Fp 5E+eDlGNVXS5r3h4+KvyMUE9P96vilcFmZT+EnHNNa9MJl+MZ1zyKriTkgySFqJ8NoVM 6Rt2AA3J3Kk2WMRXeGu9VXSp9tJHuj7/jS077RIVONKPfbBxA6kJHgZVfAhhszUAkLLJ gYael+2uxEimdDjb5FL2gB2UfzfmgCSRrAELmBRIepAtkUEQimQU/LFw6NJEfqsvhei5 bWJl4B+z4JSM+OExnA+1C6+FYFU2kn+LWS556rFB6/W/5FQVf2A38rvwhRVQXW+Vc1Hb FOdQ== 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=Tljaa6sLGzqVEkWTy8WFZ8+1JVN/U6naVu2IpICY8qc=; b=obRj6xl2WC6ywN728rnr+e0m8/VFrVLSg4MGNdKvOZgiRlMjZHhnalFg3Ug80wGtB2 B6BglFds1xkfQ0rmm5wZ42CdxU2RWV+0FE55gQvQjAQl0I3O+GiteMOn5c9Twk6vsnv4 hwJ1R67IVQR+VE+FrGnDEGsuF/NkoK9UBiDeHKOHA6xUeGkIuK73MTaf2UXKInlUA6T6 IhUgRI0eFj4RX4rYs3AHldVWjVIpDqCXwwhePQBb91nublWmBUiD3RVxVsK2NlHOL2dk QM6Afl6/T3iPXIA32tQ+XxfLzsRlhBVSafmrZjqeJXblcJDCHE8bb9X+JC8CAOUROiIK TXRw== X-Gm-Message-State: AOAM530p0JZpQKkr+A+rBy9TyRb6Y9HXBLPotiwfwoHy+ih1SoeRYZOS qwmzG5pp4JiWPX+b0P9MHamwpQ== X-Google-Smtp-Source: ABdhPJy5shG4cAWZu1Stz095i3ckx38acnf/wOYqacuVRhrdrmVSW4ctRbes8RS7Kd/oDkBHRXqASA== X-Received: by 2002:adf:f8cd:: with SMTP id f13mr20377429wrq.27.1614677740193; Tue, 02 Mar 2021 01:35:40 -0800 (PST) Received: from localhost.localdomain ([2001:1715:4e26:a7e0:116c:c27a:3e7f:5eaf]) by smtp.gmail.com with ESMTPSA id w131sm1963818wmb.8.2021.03.02.01.35.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Mar 2021 01:35:39 -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, zhukeqian1@huawei.com, wangzhou1@hisilicon.com, Jean-Philippe Brucker Subject: [PATCH v13 09/10] ACPI/IORT: Enable stall support for platform devices Date: Tue, 2 Mar 2021 10:26:45 +0100 Message-Id: <20210302092644.2553014-10-jean-philippe@linaro.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302092644.2553014-1-jean-philippe@linaro.org> References: <20210302092644.2553014-1-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 3912a1f6058e..0828f70cb782 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");