From patchwork Mon Apr 13 06:11:40 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 6206061 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 48E2FBF4A6 for ; Mon, 13 Apr 2015 06:23:03 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2DA0F201B9 for ; Mon, 13 Apr 2015 06:23:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D017F200DF for ; Mon, 13 Apr 2015 06:22:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753632AbbDMGNZ (ORCPT ); Mon, 13 Apr 2015 02:13:25 -0400 Received: from mga03.intel.com ([134.134.136.65]:38677 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753619AbbDMGNW (ORCPT ); Mon, 13 Apr 2015 02:13:22 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP; 12 Apr 2015 23:13:21 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,568,1422950400"; d="scan'208";a="694315013" Received: from gerry-dev.bj.intel.com ([10.238.158.72]) by fmsmga001.fm.intel.com with ESMTP; 12 Apr 2015 23:13:17 -0700 From: Jiang Liu To: Bjorn Helgaas , Benjamin Herrenschmidt , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , "Rafael J. Wysocki" , Randy Dunlap , Yinghai Lu , Borislav Petkov , Dimitri Sivanich , x86@kernel.org, Jiang Liu , Yijing Wang Cc: Konrad Rzeszutek Wilk , David Cohen , Sander Eikelenboom , David Vrabel , Andrew Morton , Tony Luck , Joerg Roedel , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [Patch Part1 v8 18/37] x86/MSI: Clean up unused MSI related code and interfaces Date: Mon, 13 Apr 2015 14:11:40 +0800 Message-Id: <1428905519-23704-19-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1428905519-23704-1-git-send-email-jiang.liu@linux.intel.com> References: <1428905519-23704-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Now MSI interrupt has been converted to new hierarchy irqdomain interfaces, so kill legacy MSI related code and interfaces. Signed-off-by: Jiang Liu Cc: Konrad Rzeszutek Wilk Cc: Tony Luck Cc: Joerg Roedel Cc: Greg Kroah-Hartman Cc: Bjorn Helgaas Cc: Benjamin Herrenschmidt Cc: Rafael J. Wysocki Cc: Randy Dunlap Cc: Yinghai Lu Cc: Borislav Petkov Cc: Yijing Wang Link: http://lkml.kernel.org/r/1416894816-23245-19-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/hpet.h | 9 ------- arch/x86/include/asm/x86_init.h | 4 --- arch/x86/kernel/apic/msi.c | 55 +++------------------------------------ 3 files changed, 4 insertions(+), 64 deletions(-) diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h index e87e9faf87a9..5fa9fb0f8809 100644 --- a/arch/x86/include/asm/hpet.h +++ b/arch/x86/include/asm/hpet.h @@ -85,15 +85,6 @@ extern struct irq_domain *hpet_create_irq_domain(int hpet_id); extern int hpet_assign_irq(struct irq_domain *domain, struct hpet_dev *dev, int dev_num); -#ifdef CONFIG_PCI_MSI -extern int default_setup_hpet_msi(unsigned int irq, unsigned int id); -#else -static inline int default_setup_hpet_msi(unsigned int irq, unsigned int id) -{ - return -EINVAL; -} -#endif - #ifdef CONFIG_HPET_EMULATE_RTC #include diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index f58a9c7a3c86..1649bb9ca27c 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -175,13 +175,9 @@ struct msi_msg; struct x86_msi_ops { int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); - void (*compose_msi_msg)(struct pci_dev *dev, unsigned int irq, - unsigned int dest, struct msi_msg *msg, - u8 hpet_id); void (*teardown_msi_irq)(unsigned int irq); void (*teardown_msi_irqs)(struct pci_dev *dev); void (*restore_msi_irqs)(struct pci_dev *dev); - int (*setup_hpet_msi)(unsigned int irq, unsigned int id); }; struct IO_APIC_route_entry; diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index fa2dd6ebcaea..afaaa1166a7d 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -25,16 +25,12 @@ static struct irq_domain *msi_default_domain; -void native_compose_msi_msg(struct pci_dev *pdev, - unsigned int irq, unsigned int dest, - struct msi_msg *msg, u8 hpet_id) +static void native_compose_msi_msg(struct irq_cfg *cfg, struct msi_msg *msg) { - struct irq_cfg *cfg = irq_cfg(irq); - msg->address_hi = MSI_ADDR_BASE_HI; if (x2apic_enabled()) - msg->address_hi |= MSI_ADDR_EXT_DEST_ID(dest); + msg->address_hi |= MSI_ADDR_EXT_DEST_ID(cfg->dest_apicid); msg->address_lo = MSI_ADDR_BASE_LO | @@ -44,7 +40,7 @@ void native_compose_msi_msg(struct pci_dev *pdev, ((apic->irq_delivery_mode != dest_LowestPrio) ? MSI_ADDR_REDIRECTION_CPU : MSI_ADDR_REDIRECTION_LOWPRI) | - MSI_ADDR_DEST_ID(dest); + MSI_ADDR_DEST_ID(cfg->dest_apicid); msg->data = MSI_DATA_TRIGGER_EDGE | @@ -93,31 +89,6 @@ static void msi_update_msg(struct msi_msg *msg, struct irq_data *irq_data) msg->address_lo |= MSI_ADDR_DEST_ID(cfg->dest_apicid); } -static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, - struct msi_msg *msg, u8 hpet_id) -{ - struct irq_cfg *cfg; - int err; - unsigned dest; - - if (disable_apic) - return -ENXIO; - - cfg = irq_cfg(irq); - err = assign_irq_vector(irq, cfg, apic->target_cpus()); - if (err) - return err; - - err = apic->cpu_mask_to_apicid_and(cfg->domain, - apic->target_cpus(), &dest); - if (err) - return err; - - x86_msi.compose_msi_msg(pdev, irq, dest, msg, hpet_id); - - return 0; -} - /* * IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices, * which implement the MSI or MSI-X Capability Structure. @@ -262,7 +233,7 @@ int arch_setup_dmar_msi(unsigned int irq) struct msi_msg msg; struct irq_cfg *cfg = irq_cfg(irq); - native_compose_msi_msg(NULL, irq, cfg->dest_apicid, &msg, -1); + native_compose_msi_msg(cfg, &msg); dmar_msi_write(irq, &msg); irq_set_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq, "edge"); @@ -318,24 +289,6 @@ static struct irq_chip hpet_msi_controller = { .flags = IRQCHIP_SKIP_SET_WAKE, }; -int default_setup_hpet_msi(unsigned int irq, unsigned int id) -{ - struct irq_chip *chip = &hpet_msi_controller; - struct msi_msg msg; - int ret; - - ret = msi_compose_msg(NULL, irq, &msg, id); - if (ret < 0) - return ret; - - hpet_msi_write(irq_get_handler_data(irq), &msg); - irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); - setup_remapped_irq(irq, irq_cfg(irq), chip); - - irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge"); - return 0; -} - static int hpet_domain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs, void *arg) {