Message ID | 20200821002946.102072199@linutronix.de |
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State | New |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=MMHS08Lk; dkim=pass header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=5yc8X5Q+; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BXlbQ5vnZz9sTF for <incoming@patchwork.ozlabs.org>; Fri, 21 Aug 2020 12:20:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727782AbgHUCUA (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Thu, 20 Aug 2020 22:20:00 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:52550 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727793AbgHUCQu (ORCPT <rfc822;linux-pci@vger.kernel.org>); Thu, 20 Aug 2020 22:16:50 -0400 Message-Id: <20200821002946.102072199@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1597976208; 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=HdiRwW0QBP1llYsOxuGajmw0gw4oc9eOOdN5Md9NR5A=; b=MMHS08LkfnEgTXsVoialrqCW9fRJ6AONkb+dykHl1E7z1jSVBMT+2LpAFmpo+8NVarXnD6 UGbswtCAiv/cqLT2k/YprokRSvKx3qLWDhOCFaqaFqX6sO3O0F49AJVxBSrDd3E/PDWU0r iab+jR/ARt1/IQ7gQZ6d76rp5xop1LRLA6f5Hj8nC5kV7Hxj66YnGeCP1AW6zntjn0Ypro 4nnTRpnlLenDCD6/DvC0Gd/8jlpZyJIEk7ZKrEuvlHlUkC1mQgeS8nyAHPnc1M7H+Vgew6 NRR6tC+qYhzyo1jGzNFwhpjMG+JvGP6o56Nrnna4/AGsTd4yK/HI6Xi7vJpUcA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1597976208; 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=HdiRwW0QBP1llYsOxuGajmw0gw4oc9eOOdN5Md9NR5A=; b=5yc8X5Q+KF1CbR4X6zA2pQbmGSA2jQgF397Z0fl0uy9EapMQQ5Mpzjqwtw2DtAfEb0sjFt qqRq0A6Mw+TS/cCQ== Date: Fri, 21 Aug 2020 02:24:32 +0200 From: Thomas Gleixner <tglx@linutronix.de> To: LKML <linux-kernel@vger.kernel.org> Cc: 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>, Jonathan Derrick <jonathan.derrick@intel.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>, Marc Zyngier <maz@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: [patch RFC 08/38] x86/irq: Prepare consolidation of irq_alloc_info References: <20200821002424.119492231@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline; filename="x86-irq--Prepare-consolidation-of-irq_alloc_info.patch" Content-transfer-encoding: 8-bit Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: <linux-pci.vger.kernel.org> X-Mailing-List: linux-pci@vger.kernel.org |
Series |
x86, PCI, XEN, genirq ...: Prepare for device MSI
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--- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -44,10 +44,25 @@ enum irq_alloc_type { X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT, }; +/** + * irq_alloc_info - X86 specific interrupt allocation info + * @type: X86 specific allocation type + * @flags: Flags for allocation tweaks + * @devid: Device ID for allocations + * @hwirq: Associated hw interrupt number in the domain + * @mask: CPU mask for vector allocation + * @desc: Pointer to msi descriptor + * @data: Allocation specific data + */ struct irq_alloc_info { enum irq_alloc_type type; u32 flags; - const struct cpumask *mask; /* CPU mask for vector allocation */ + u32 devid; + irq_hw_number_t hwirq; + const struct cpumask *mask; + struct msi_desc *desc; + void *data; + union { int unused; #ifdef CONFIG_HPET_TIMER @@ -88,11 +103,6 @@ struct irq_alloc_info { char *uv_name; }; #endif -#if IS_ENABLED(CONFIG_VMD) - struct { - struct msi_desc *desc; - }; -#endif }; };
struct irq_alloc_info is a horrible zoo of unnamed structs in a union. Many of the struct fields can be generic and don't have to be type specific like hpet_id, ioapic_id... Provide a generic set of members to prepare for the consolidation. The goal is to make irq_alloc_info have the same basic member as the generic msi_alloc_info so generic MSI domain ops can be reused and yet more mess can be avoided when (non-PCI) device MSI support comes along. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/x86/include/asm/hw_irq.h | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-)