From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753473AbdFVQvc (ORCPT ); Thu, 22 Jun 2017 12:51:32 -0400 Received: from terminus.zytor.com ([65.50.211.136]:36509 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752123AbdFVQva (ORCPT ); Thu, 22 Jun 2017 12:51:30 -0400 Date: Thu, 22 Jun 2017 09:45:08 -0700 From: tip-bot for Thomas Gleixner Message-ID: Cc: joro@8bytes.org, tglx@linutronix.de, marc.zyngier@arm.com, hch@lst.de, mingo@kernel.org, hpa@zytor.com, keith.busch@intel.com, peterz@infradead.org, linux-kernel@vger.kernel.org, axboe@kernel.dk, mpe@ellerman.id.au Reply-To: linux-kernel@vger.kernel.org, peterz@infradead.org, mpe@ellerman.id.au, axboe@kernel.dk, hch@lst.de, joro@8bytes.org, tglx@linutronix.de, marc.zyngier@arm.com, keith.busch@intel.com, mingo@kernel.org, hpa@zytor.com In-Reply-To: <20170619235443.986661206@linutronix.de> References: <20170619235443.986661206@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:irq/core] x86/msi: Provide new iommu irqdomain interface Git-Commit-ID: 667724c5a3109675cf3bfe7d75795b8608d1bcbe X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 667724c5a3109675cf3bfe7d75795b8608d1bcbe Gitweb: http://git.kernel.org/tip/667724c5a3109675cf3bfe7d75795b8608d1bcbe Author: Thomas Gleixner AuthorDate: Tue, 20 Jun 2017 01:37:10 +0200 Committer: Thomas Gleixner CommitDate: Thu, 22 Jun 2017 18:21:10 +0200 x86/msi: Provide new iommu irqdomain interface Provide a new interface for creating the iommu remapping domains, so that the caller can supply a name and a id in order to create named irqdomains. Signed-off-by: Thomas Gleixner Cc: Jens Axboe Cc: Marc Zyngier Cc: Michael Ellerman Cc: Joerg Roedel Cc: Keith Busch Cc: Peter Zijlstra Cc: iommu@lists.linux-foundation.org Cc: Christoph Hellwig Link: http://lkml.kernel.org/r/20170619235443.986661206@linutronix.de Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/irq_remapping.h | 2 ++ arch/x86/kernel/apic/msi.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h index a210eba..0398675 100644 --- a/arch/x86/include/asm/irq_remapping.h +++ b/arch/x86/include/asm/irq_remapping.h @@ -56,6 +56,8 @@ irq_remapping_get_irq_domain(struct irq_alloc_info *info); /* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */ extern struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent); +extern struct irq_domain * +arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int id); /* Get parent irqdomain for interrupt remapping irqdomain */ static inline struct irq_domain *arch_get_ir_parent_domain(void) diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index c61aec7..0e6618e 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -167,10 +167,25 @@ static struct msi_domain_info pci_msi_ir_domain_info = { .handler_name = "edge", }; +struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent, + const char *name, int id) +{ + struct fwnode_handle *fn; + struct irq_domain *d; + + fn = irq_domain_alloc_named_id_fwnode(name, id); + if (!fn) + return NULL; + d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent); + irq_domain_free_fwnode(fn); + return d; +} + struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent) { return pci_msi_create_irq_domain(NULL, &pci_msi_ir_domain_info, parent); } + #endif #ifdef CONFIG_DMAR_TABLE