From patchwork Wed Aug 26 11:17:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 11738201 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B4D0D14E5 for ; Wed, 26 Aug 2020 12:07:33 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9176420786 for ; Wed, 26 Aug 2020 12:07:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="xQK+hWPf"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="gYT9vQkY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9176420786 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kAuCX-0002G7-EZ; Wed, 26 Aug 2020 12:06:49 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kAu7m-00083C-Br for xen-devel@lists.xenproject.org; Wed, 26 Aug 2020 12:01:54 +0000 X-Inumbo-ID: 8be08264-29a9-4456-8af8-26aff0bd65be Received: from galois.linutronix.de (unknown [193.142.43.55]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id 8be08264-29a9-4456-8af8-26aff0bd65be; Wed, 26 Aug 2020 12:01:41 +0000 (UTC) Message-Id: <20200826112334.198633344@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1598443300; 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: content-transfer-encoding:content-transfer-encoding: references:references; bh=x1lilm1wSab7jCk+RVn7Y9w51r0P/DEEXiuOg6SwxNA=; b=xQK+hWPf8Qa3VBlzaS65MXD1rTSFvkAArmzsKQ683fYw7lGT3CJmc6zDW+r/7Jgj7ZV2nl 4UevQBnTw5XpFbtakjWkpbHWqqet9HRqvMyaTaWT3cBq4RXUPJOhHdfh2EIk61yrHamuIN rwAWoeD72N9K27PQHP75BHj50xOq7Jn7kaeVNW4Cq6/dGK200KYcNr3AFIK7SNAH4HSk1j JxFtDFFu+1RikYKodYarFpSnJDprYU8G0NdM5nmBB3ic8gWfzlYKdubancrikcp+6yOWJe 4Z8TVxOBgZtq/VWS2JJDmRCvaLbI3TPKTxzAHcjo1M3fn/h1MXV08dRp/uIHQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1598443300; 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: content-transfer-encoding:content-transfer-encoding: references:references; bh=x1lilm1wSab7jCk+RVn7Y9w51r0P/DEEXiuOg6SwxNA=; b=gYT9vQkYl8yJG877OT3E6JNjTxccLTMsmLl+imB25zhe9GgkmpQIzEmEzvfi2t8TSIfYQR EUDgFsP2OsmAzsCA== Date: Wed, 26 Aug 2020 13:17:04 +0200 From: Thomas Gleixner To: LKML Cc: 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 , Lorenzo Pieralisi , Konrad Rzeszutek Wilk , xen-devel@lists.xenproject.org, Juergen Gross , Boris Ostrovsky , Stefano Stabellini , Marc Zyngier , Greg Kroah-Hartman , "Rafael J. Wysocki" , Megha Dey , Jason Gunthorpe , Dave Jiang , Alex Williamson , Jacob Pan , Baolu Lu , Kevin Tian , Dan Williams Subject: [patch V2 36/46] x86/irq: Make most MSI ops XEN private References: <20200826111628.794979401@linutronix.de> MIME-Version: 1.0 Content-transfer-encoding: 8-bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" From: Thomas Gleixner Nothing except XEN uses the setup/teardown ops. Hide them there. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/x86_init.h | 2 -- arch/x86/pci/xen.c | 21 ++++++++++++++------- 2 files changed, 14 insertions(+), 9 deletions(-) --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -276,8 +276,6 @@ struct x86_platform_ops { struct pci_dev; struct x86_msi_ops { - int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); - void (*teardown_msi_irqs)(struct pci_dev *dev); void (*restore_msi_irqs)(struct pci_dev *dev); }; --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -157,6 +157,13 @@ static int acpi_register_gsi_xen(struct struct xen_pci_frontend_ops *xen_pci_frontend; EXPORT_SYMBOL_GPL(xen_pci_frontend); +struct xen_msi_ops { + int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); + void (*teardown_msi_irqs)(struct pci_dev *dev); +}; + +static struct xen_msi_ops xen_msi_ops __ro_after_init; + static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { int irq, ret, i; @@ -415,7 +422,7 @@ static int xen_msi_domain_alloc_irqs(str else type = PCI_CAP_ID_MSI; - return x86_msi.setup_msi_irqs(to_pci_dev(dev), nvec, type); + return xen_msi_ops.setup_msi_irqs(to_pci_dev(dev), nvec, type); } static void xen_msi_domain_free_irqs(struct irq_domain *domain, @@ -424,7 +431,7 @@ static void xen_msi_domain_free_irqs(str if (WARN_ON_ONCE(!dev_is_pci(dev))) return; - x86_msi.teardown_msi_irqs(to_pci_dev(dev)); + xen_msi_ops.teardown_msi_irqs(to_pci_dev(dev)); } static struct msi_domain_ops xen_pci_msi_domain_ops = { @@ -463,16 +470,16 @@ static __init void xen_setup_pci_msi(voi { if (xen_pv_domain()) { if (xen_initial_domain()) { - x86_msi.setup_msi_irqs = xen_initdom_setup_msi_irqs; + xen_msi_ops.setup_msi_irqs = xen_initdom_setup_msi_irqs; x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs; } else { - x86_msi.setup_msi_irqs = xen_setup_msi_irqs; + xen_msi_ops.setup_msi_irqs = xen_setup_msi_irqs; } - x86_msi.teardown_msi_irqs = xen_pv_teardown_msi_irqs; + xen_msi_ops.teardown_msi_irqs = xen_pv_teardown_msi_irqs; pci_msi_ignore_mask = 1; } else if (xen_hvm_domain()) { - x86_msi.setup_msi_irqs = xen_hvm_setup_msi_irqs; - x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs; + xen_msi_ops.setup_msi_irqs = xen_hvm_setup_msi_irqs; + xen_msi_ops.teardown_msi_irqs = xen_teardown_msi_irqs; } else { WARN_ON_ONCE(1); return;