From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752948AbdFSX7t (ORCPT ); Mon, 19 Jun 2017 19:59:49 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:39905 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752897AbdFSX7q (ORCPT ); Mon, 19 Jun 2017 19:59:46 -0400 Message-Id: <20170619235443.986661206@linutronix.de> User-Agent: quilt/0.63-1 Date: Tue, 20 Jun 2017 01:37:10 +0200 From: Thomas Gleixner To: LKML Cc: Marc Zyngier , Christoph Hellwig , Ingo Molnar , Peter Zijlstra , Michael Ellerman , Jens Axboe , Keith Busch , Joerg Roedel , iommu@lists.linux-foundation.org Subject: [patch 10/55] x86/msi: Provide new iommu irqdomain interface References: <20170619233700.547167146@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=x86-msi--Provide-new-iommu-irqdomain-interface.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: Joerg Roedel Cc: iommu@lists.linux-foundation.org --- arch/x86/include/asm/irq_remapping.h | 2 ++ arch/x86/kernel/apic/msi.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) --- 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_ /* 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) --- 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 .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); + kfree(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 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Gleixner Subject: [patch 10/55] x86/msi: Provide new iommu irqdomain interface Date: Tue, 20 Jun 2017 01:37:10 +0200 Message-ID: <20170619235443.986661206@linutronix.de> References: <20170619233700.547167146@linutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline; filename=x86-msi--Provide-new-iommu-irqdomain-interface.patch List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: LKML Cc: Jens Axboe , Marc Zyngier , Michael Ellerman , Ingo Molnar , Keith Busch , Peter Zijlstra , iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Christoph Hellwig List-Id: iommu@lists.linux-foundation.org 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: Joerg Roedel Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org --- arch/x86/include/asm/irq_remapping.h | 2 ++ arch/x86/kernel/apic/msi.c | 15 +++++++++++++++ 2 files changed, 17 insertions(+) --- 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_ /* 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) --- 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 .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); + kfree(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