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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 B1BFFC433ED for ; Tue, 6 Apr 2021 15:29:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F7DC613CC for ; Tue, 6 Apr 2021 15:29:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233471AbhDFP3U (ORCPT ); Tue, 6 Apr 2021 11:29:20 -0400 Received: from foss.arm.com ([217.140.110.172]:44650 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229648AbhDFP3U (ORCPT ); Tue, 6 Apr 2021 11:29:20 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F045E1FB; Tue, 6 Apr 2021 08:29:11 -0700 (PDT) Received: from lpieralisi (e121166-lin.cambridge.arm.com [10.1.196.255]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EC6EF3F792; Tue, 6 Apr 2021 08:29:08 -0700 (PDT) Date: Tue, 6 Apr 2021 16:29:03 +0100 From: Lorenzo Pieralisi To: Jean-Philippe Brucker Cc: joro@8bytes.org, will@kernel.org, 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 Subject: Re: [PATCH v14 09/10] ACPI/IORT: Enable stall support for platform devices Message-ID: <20210406152903.GA28301@lpieralisi> References: <20210401154718.307519-1-jean-philippe@linaro.org> <20210401154718.307519-10-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210401154718.307519-10-jean-philippe@linaro.org> User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Thu, Apr 01, 2021 at 05:47:18PM +0200, Jean-Philippe Brucker wrote: > 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(-) Acked-by: Lorenzo Pieralisi > 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"); > -- > 2.31.1 >