From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=kGB5=CE=vger.kernel.org=linux-kernel-owner@kernel.org>
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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED,
	DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,
	SPF_HELO_NONE,SPF_PASS autolearn=no 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 A2D86C433E5
	for <linux-kernel@archiver.kernel.org>; Wed, 26 Aug 2020 21:27:49 +0000 (UTC)
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by mail.kernel.org (Postfix) with ESMTP id 72C0D20737
	for <linux-kernel@archiver.kernel.org>; Wed, 26 Aug 2020 21:27:49 +0000 (UTC)
Authentication-Results: mail.kernel.org;
	dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Ppbpj32C";
	dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="g64NV1HP"
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726887AbgHZV1s (ORCPT
        <rfc822;linux-kernel@archiver.kernel.org>);
        Wed, 26 Aug 2020 17:27:48 -0400
Received: from Galois.linutronix.de ([193.142.43.55]:33692 "EHLO
        galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1726753AbgHZV1o (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 26 Aug 2020 17:27:44 -0400
From:   Thomas Gleixner <tglx@linutronix.de>
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020; t=1598477262;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=AP/JLSo39vhE0wtYqmiGvGnDrGFkgwOpCQr0bMHNNIo=;
        b=Ppbpj32Cn5vd1ION8eS5aNl/fj1QjIs+RkAaM6B9/j2KvPN1mwxngYrYRgiWuDvZz7tk4s
        6s3VU0oxNXckuhydtQw2GgWp9Lfh6ODP0+s0hFgvzGCyaE7b+A+lIZaUi6gcZA/8lo5a4X
        Euy7gPuCc91BHe8pXICVD2nCrFV9IERKZf+HfP/+i3Fiyte9xzGw/xupM0BY5OEQNdUEQg
        FSOqYrYHEp/isAlEeyp0rD5/Tbv3MnOJpEwiIrn+8eh5SdC6QWIfsV4iOmiZxyT6TlWac6
        8D2S8zdYEOpLjpGvQn5ZbyugrRJHkxqLX+ncTO+VdcNoBYHDOsGnw6OdV/ra8A==
DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de;
        s=2020e; t=1598477262;
        h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
         to:to:cc:cc:mime-version:mime-version:content-type:content-type:
         in-reply-to:in-reply-to:references:references;
        bh=AP/JLSo39vhE0wtYqmiGvGnDrGFkgwOpCQr0bMHNNIo=;
        b=g64NV1HP6nZPTwYFAmNkOJaevjoEaWBisT8u9MwS+B3AK95KBK4cxQI4t2bfE2amJBs0p0
        WvmjR7PZtJ//chDw==
To:     Marc Zyngier <maz@kernel.org>
Cc:     LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Joerg Roedel <joro@8bytes.org>,
        iommu@lists.linux-foundation.org, linux-hyperv@vger.kernel.org,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Jon Derrick <jonathan.derrick@intel.com>,
        Lu Baolu <baolu.lu@linux.intel.com>,
        Wei Liu <wei.liu@kernel.org>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Steve Wahl <steve.wahl@hpe.com>,
        Dimitri Sivanich <sivanich@hpe.com>,
        Russ Anderson <rja@hpe.com>, linux-pci@vger.kernel.org,
        Bjorn Helgaas <bhelgaas@google.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        xen-devel@lists.xenproject.org, Juergen Gross <jgross@suse.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Stefano Stabellini <sstabellini@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Megha Dey <megha.dey@intel.com>,
        Jason Gunthorpe <jgg@mellanox.com>,
        Dave Jiang <dave.jiang@intel.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Jacob Pan <jacob.jun.pan@intel.com>,
        Baolu Lu <baolu.lu@intel.com>,
        Kevin Tian <kevin.tian@intel.com>,
        Dan Williams <dan.j.williams@intel.com>
Subject: Re: [patch V2 34/46] PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable
In-Reply-To: <8736492jot.wl-maz@kernel.org>
References: <20200826111628.794979401@linutronix.de> <20200826112333.992429909@linutronix.de> <8736492jot.wl-maz@kernel.org>
Date:   Wed, 26 Aug 2020 23:27:41 +0200
Message-ID: <87lfi1t7w2.fsf@nanos.tec.linutronix.de>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Wed, Aug 26 2020 at 22:14, Marc Zyngier wrote:
> On Wed, 26 Aug 2020 12:17:02 +0100,
> Thomas Gleixner <tglx@linutronix.de> wrote:
>> @@ -103,6 +105,7 @@ config PCIE_XILINX_CPM
>>  	bool "Xilinx Versal CPM host bridge support"
>>  	depends on ARCH_ZYNQMP || COMPILE_TEST
>>  	select PCI_HOST_COMMON
>> +	select PCI_MSI_ARCH_FALLBACKS
>
> This guy actually doesn't implement MSIs at all (it seems to delegate
> them to an ITS present in the system, if I read the DT binding
> correctly). However its older brother from the same silicon dealer
> seems to need it. The patchlet below should fix it.

Gah, at some point my eyes went squared and I lost track..