From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754728AbbG2Wbm (ORCPT ); Wed, 29 Jul 2015 18:31:42 -0400 Received: from terminus.zytor.com ([198.137.202.10]:37252 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753819AbbG2Wbl (ORCPT ); Wed, 29 Jul 2015 18:31:41 -0400 Date: Wed, 29 Jul 2015 15:30:51 -0700 From: tip-bot for Marc Zyngier Message-ID: Cc: linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com, linux-kernel@vger.kernel.org, bhelgaas@google.com, jiang.liu@linux.intel.com, mingo@kernel.org, jason@lakedaemon.net, hanjun.guo@linaro.org, dhdang@apm.com, lorenzo.pieralisi@arm.com, majun258@huawei.com, tglx@linutronix.de, hpa@zytor.com, wangyijing@huawei.com Reply-To: mingo@kernel.org, bhelgaas@google.com, jiang.liu@linux.intel.com, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, hpa@zytor.com, wangyijing@huawei.com, lorenzo.pieralisi@arm.com, hanjun.guo@linaro.org, dhdang@apm.com, jason@lakedaemon.net, tglx@linutronix.de, majun258@huawei.com In-Reply-To: <1438091186-10244-19-git-send-email-marc.zyngier@arm.com> References: <1438091186-10244-19-git-send-email-marc.zyngier@arm.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:irq/core] PCI/MSI: pci-xgene-msi: Get rid of struct msi_controller Git-Commit-ID: 8d63bc7beaeecdc2dfafed69c3555471fbe4aee7 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: 8d63bc7beaeecdc2dfafed69c3555471fbe4aee7 Gitweb: http://git.kernel.org/tip/8d63bc7beaeecdc2dfafed69c3555471fbe4aee7 Author: Marc Zyngier AuthorDate: Tue, 28 Jul 2015 14:46:25 +0100 Committer: Thomas Gleixner CommitDate: Thu, 30 Jul 2015 00:14:39 +0200 PCI/MSI: pci-xgene-msi: Get rid of struct msi_controller The X-Gene MSI driver only uses the msi_controller structure as a way to match the host bridge with its MSI HW, and thus the msi_domain. But now that we can directly associate an msi_domain with a device, there is no use keeping this msi_controller around. Just remove all traces of msi_controller from the driver. Tested-by: Duc Dang Acked-by: Bjorn Helgaas Signed-off-by: Marc Zyngier Cc: Cc: Yijing Wang Cc: Ma Jun Cc: Lorenzo Pieralisi Cc: Hanjun Guo Cc: Jiang Liu Cc: Jason Cooper Link: http://lkml.kernel.org/r/1438091186-10244-19-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner --- drivers/pci/host/pci-xgene-msi.c | 41 ++++++++++++++++------------------------ 1 file changed, 16 insertions(+), 25 deletions(-) diff --git a/drivers/pci/host/pci-xgene-msi.c b/drivers/pci/host/pci-xgene-msi.c index 2d31d4d..ec5a14b 100644 --- a/drivers/pci/host/pci-xgene-msi.c +++ b/drivers/pci/host/pci-xgene-msi.c @@ -40,8 +40,8 @@ struct xgene_msi_group { struct xgene_msi { struct device_node *node; - struct msi_controller mchip; - struct irq_domain *domain; + struct irq_domain *inner_domain; + struct irq_domain *msi_domain; u64 msi_addr; void __iomem *msi_regs; unsigned long *bitmap; @@ -252,17 +252,17 @@ static const struct irq_domain_ops msi_domain_ops = { static int xgene_allocate_domains(struct xgene_msi *msi) { - msi->domain = irq_domain_add_linear(NULL, NR_MSI_VEC, - &msi_domain_ops, msi); - if (!msi->domain) + msi->inner_domain = irq_domain_add_linear(NULL, NR_MSI_VEC, + &msi_domain_ops, msi); + if (!msi->inner_domain) return -ENOMEM; - msi->mchip.domain = pci_msi_create_irq_domain(msi->mchip.of_node, - &xgene_msi_domain_info, - msi->domain); + msi->msi_domain = pci_msi_create_irq_domain(msi->node, + &xgene_msi_domain_info, + msi->inner_domain); - if (!msi->mchip.domain) { - irq_domain_remove(msi->domain); + if (!msi->msi_domain) { + irq_domain_remove(msi->inner_domain); return -ENOMEM; } @@ -271,10 +271,10 @@ static int xgene_allocate_domains(struct xgene_msi *msi) static void xgene_free_domains(struct xgene_msi *msi) { - if (msi->mchip.domain) - irq_domain_remove(msi->mchip.domain); - if (msi->domain) - irq_domain_remove(msi->domain); + if (msi->msi_domain) + irq_domain_remove(msi->msi_domain); + if (msi->inner_domain) + irq_domain_remove(msi->inner_domain); } static int xgene_msi_init_allocator(struct xgene_msi *xgene_msi) @@ -340,7 +340,7 @@ static void xgene_msi_isr(unsigned int irq, struct irq_desc *desc) * CPU0 */ hw_irq = hwirq_to_canonical_hwirq(hw_irq); - virq = irq_find_mapping(xgene_msi->domain, hw_irq); + virq = irq_find_mapping(xgene_msi->inner_domain, hw_irq); WARN_ON(!virq); if (virq != 0) generic_handle_irq(virq); @@ -497,7 +497,7 @@ static int xgene_msi_probe(struct platform_device *pdev) goto error; } xgene_msi->msi_addr = res->start; - + xgene_msi->node = pdev->dev.of_node; xgene_msi->num_cpus = num_possible_cpus(); rc = xgene_msi_init_allocator(xgene_msi); @@ -561,19 +561,10 @@ static int xgene_msi_probe(struct platform_device *pdev) cpu_notifier_register_done(); - xgene_msi->mchip.of_node = pdev->dev.of_node; - rc = of_pci_msi_chip_add(&xgene_msi->mchip); - if (rc) { - dev_err(&pdev->dev, "failed to add MSI controller chip\n"); - goto error_notifier; - } - dev_info(&pdev->dev, "APM X-Gene PCIe MSI driver loaded\n"); return 0; -error_notifier: - unregister_hotcpu_notifier(&xgene_msi_cpu_notifier); error: xgene_msi_remove(pdev); return rc;