Received: by 2002:a05:6a10:6006:0:0:0:0 with SMTP id w6csp421382pxa;
        Wed, 26 Aug 2020 14:29:52 -0700 (PDT)
X-Google-Smtp-Source: ABdhPJxKVSwVmQ+7jdKS52iypSCJs4eFnLNswh6ezq+/ktrm7Fc3945n445pJ5+pVyYM8Tf/QGqU
X-Received: by 2002:a17:906:d10e:: with SMTP id b14mr17453945ejz.127.1598477392626;
        Wed, 26 Aug 2020 14:29:52 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1598477392; cv=none;
        d=google.com; s=arc-20160816;
        b=A6RSgEtnzwMxBO0QE3lTuluUNh0Uo4V8Kk910Z9UXXK/rDoKK42ZjsfD/TINGOe25u
         Se6YPzidhGf0l36lyam8uExzZLwBMdwXJeO3gsRrREhAmQU+GTLTJCwbphDkgU1hI37J
         7O4pTnrWKL9Uwn8opPtVDAZuaZTgARon0efphwk80wVAxqmLcduaAyPT1MShuZEOo2T4
         wpETC7v9yIe+NywJ7ZiSYaA8MRH2MXfGBVswqIftZOSXQiOYOIB0fEhTtQxbfEVZTVYi
         kZgcAwcoYbv4W6QcKguA59SP0NkAJpiZVu0+pU3egAE+zQi/ITshipY1FqBx4m8gSmNo
         HWWw==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:mime-version:message-id:date:references
         :in-reply-to:subject:cc:to:dkim-signature:dkim-signature:from;
        bh=AP/JLSo39vhE0wtYqmiGvGnDrGFkgwOpCQr0bMHNNIo=;
        b=HFY9PPTuja2reuiRM6Bu8c7EprIliJExxR51jEYesQUmeI/VvHNw8TkVgi/QlWiG/q
         N535JiqIy75v1yCn3uFgljsFqR3NpQXNBqd4JeuIDbQx07CArL79sJMP89leObmuHl9g
         LIaoppQijrLDe8owC89+JsHAWxWgiIyJCv+9T6GZuK5K1fQdJd1GPLMwmrS+5W3DvWPJ
         52qR/GdIOTrkhdFnj/JIlVS0tLklLC1e/w3L0loiHXf7Tv9GQFXS5CQFuQqp65c37M1E
         stLkIkb/wejDQKWLsG1hiqHhLTThnTYEc/2tg89oesEg+H+Xd5Fu3ApO1v2brzmxfcps
         M9bQ==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=Ppbpj32C;
       dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=g64NV1HP;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18])
        by mx.google.com with ESMTP id pk27si1563168ejb.527.2020.08.26.14.29.28;
        Wed, 26 Aug 2020 14:29:52 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Authentication-Results: mx.google.com;
       dkim=pass header.i=@linutronix.de header.s=2020 header.b=Ppbpj32C;
       dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=g64NV1HP;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726856AbgHZV1q (ORCPT <rfc822;zffurovfq63@gmail.com>
        + 99 others); Wed, 26 Aug 2020 17:27:46 -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..