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=-10.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 39EFCC433E6 for ; Fri, 28 Aug 2020 13:53:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 13A8A20776 for ; Fri, 28 Aug 2020 13:53:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598622785; bh=T7BIgnulmA7Rr4VLtFe5t2nLsQIXVYWoUuHXGZx4Vjs=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=zzNjb+yxvLHQXO1xkgC0MjXCGrwlBywHxDi2cSbx2pOftSKM4Pj7cv3+CAZbfrV0x PV74YmgES+83dhhMiI/Y8ChPp2B1UzhZrzGVQ5avcLrGvFMqPIukZXQw/ywE4WxcuC ZIWuMdX+xs90Ttcs9cD0U/uu+/8Zvoz3vZoLq85I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726995AbgH1NxD (ORCPT ); Fri, 28 Aug 2020 09:53:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:57312 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725857AbgH1Nw7 (ORCPT ); Fri, 28 Aug 2020 09:52:59 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0FD3420776; Fri, 28 Aug 2020 13:52:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598622778; bh=T7BIgnulmA7Rr4VLtFe5t2nLsQIXVYWoUuHXGZx4Vjs=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Uo6SO5R2ezrJiBPDRV1S93w8bWqnRhEY+W9XY9s6oSe7cKp02czOoNpg0rTdv9o0Q ph8kxjMp/pXOSqcn2p1nxoQjh6mHG7VaVIxPqsu1ZI8ntzCsqdwIurHSpRrEdA3w+Q ZxybgY1fooOM/99PO34iLFdwoPHAMX5TShHXGqVU= Received: from disco-boy.misterjones.org ([51.254.78.96] helo=www.loen.fr) by disco-boy.misterjones.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1kBeoK-007Qex-8b; Fri, 28 Aug 2020 14:52:56 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 28 Aug 2020 14:52:56 +0100 From: Marc Zyngier To: Jason Gunthorpe Cc: Lorenzo Pieralisi , Bjorn Helgaas , Thomas Gleixner , LKML , x86@kernel.org, Joerg Roedel , iommu@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, Haiyang Zhang , Jon Derrick , Lu Baolu , Wei Liu , "K. Y. Srinivasan" , Stephen Hemminger , Steve Wahl , Dimitri Sivanich , Russ Anderson , linux-pci@vger.kernel.org, Bjorn Helgaas , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Juergen Gross , Boris Ostrovsky , Stefano Stabellini , Greg Kroah-Hartman , "Rafael J. Wysocki" , Megha Dey , Dave Jiang , Alex Williamson , Jacob Pan , Baolu Lu , Kevin Tian , Dan Williams , Rob Herring Subject: Re: [patch V2 34/46] PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable In-Reply-To: <20200828125403.GR1152540@nvidia.com> References: <20200826112333.992429909@linutronix.de> <20200827182040.GA2049623@bjorn-Precision-5520> <20200828112142.GA14208@e121166-lin.cambridge.arm.com> <20200828121944.GQ1152540@nvidia.com> <0cc8bfd9258dfc507585fd0f19a945e3@kernel.org> <20200828125403.GR1152540@nvidia.com> User-Agent: Roundcube Webmail/1.4.8 Message-ID: <9346b8358726185a31f50b0fac257129@kernel.org> X-Sender: maz@kernel.org X-SA-Exim-Connect-IP: 51.254.78.96 X-SA-Exim-Rcpt-To: jgg@nvidia.com, lorenzo.pieralisi@arm.com, helgaas@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, x86@kernel.org, joro@8bytes.org, iommu@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, haiyangz@microsoft.com, jonathan.derrick@intel.com, baolu.lu@linux.intel.com, wei.liu@kernel.org, kys@microsoft.com, sthemmin@microsoft.com, steve.wahl@hpe.com, sivanich@hpe.com, rja@hpe.com, linux-pci@vger.kernel.org, bhelgaas@google.com, konrad.wilk@oracle.com, xen-devel@lists.xenproject.org, jgross@suse.com, boris.ostrovsky@oracle.com, sstabellini@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, megha.dey@intel.com, dave.jiang@intel.com, alex.williamson@redhat.com, jacob.jun.pan@intel.com, baolu.lu@intel.com, kevin.tian@intel.com, dan.j.williams@intel.com, robh@kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-08-28 13:54, Jason Gunthorpe wrote: > On Fri, Aug 28, 2020 at 01:47:59PM +0100, Marc Zyngier wrote: > >> > So the arch_setup_msi_irq/etc is not really an arch hook, but some >> > infrastructure to support those 4 PCI root port drivers. >> >> I happen to have a *really old* patch addressing Tegra [1], which >> I was never able to test (no HW). Rebasing it shouldn't be too hard, >> and maybe you can find someone internally willing to give it a spin? > > Sure, that helps a bunch, I will ask internally if someone in that BU > can take a look. I just rebased[1] the patch onto -rc2, and provided a TODO list in the commit message. Thanks, M. [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/tegra-msi -- Jazz is not dead. It just smells funny...