Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932919AbaJOC2k (ORCPT ); Tue, 14 Oct 2014 22:28:40 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:40016 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932809AbaJOC0L (ORCPT ); Tue, 14 Oct 2014 22:26:11 -0400 From: Yijing Wang To: Bjorn Helgaas CC: , , Xinwei Hu , Wuyun , , Russell King , , , , , Arnd Bergmann , Thomas Gleixner , "Konrad Rzeszutek Wilk" , , Joerg Roedel , , , Benjamin Herrenschmidt , , , Sebastian Ott , "Tony Luck" , , "David S. Miller" , , Chris Metcalf , Ralf Baechle , Lucas Stach , David Vrabel , "Sergei Shtylyov" , Michael Ellerman , Thierry Reding , "Thomas Petazzoni" , Liviu Dudau , Yijing Wang Subject: [PATCH v3 23/27] arm/iop13xx/MSI: Use MSI chip framework to configure MSI/MSI-X irq Date: Wed, 15 Oct 2014 11:07:11 +0800 Message-ID: <1413342435-7876-24-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1413342435-7876-1-git-send-email-wangyijing@huawei.com> References: <1413342435-7876-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang --- arch/arm/mach-iop13xx/include/mach/pci.h | 4 ++++ arch/arm/mach-iop13xx/iq81340mc.c | 3 +++ arch/arm/mach-iop13xx/iq81340sc.c | 5 ++++- arch/arm/mach-iop13xx/msi.c | 11 +++++++++-- 4 files changed, 20 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-iop13xx/include/mach/pci.h b/arch/arm/mach-iop13xx/include/mach/pci.h index 59f42b5..c87ac3a 100644 --- a/arch/arm/mach-iop13xx/include/mach/pci.h +++ b/arch/arm/mach-iop13xx/include/mach/pci.h @@ -11,6 +11,10 @@ void iop13xx_atu_select(struct hw_pci *plat_pci); void iop13xx_pci_init(void); void iop13xx_map_pci_memory(void); +#ifdef CONFIG_PCI_MSI +extern struct msi_chip iop13xx_msi_chip; +#endif + #define IOP_PCI_STATUS_ERROR (PCI_STATUS_PARITY | \ PCI_STATUS_SIG_TARGET_ABORT | \ PCI_STATUS_REC_TARGET_ABORT | \ diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c index 9cd07d3..1f499b6 100644 --- a/arch/arm/mach-iop13xx/iq81340mc.c +++ b/arch/arm/mach-iop13xx/iq81340mc.c @@ -59,6 +59,9 @@ static struct hw_pci iq81340mc_pci __initdata = { .map_irq = iq81340mc_pcix_map_irq, .scan = iop13xx_scan_bus, .preinit = iop13xx_pci_init, +#ifdef CONFIG_PCI_MSI + .msi_chip = &iop13xx_msi_chip, +#endif }; static int __init iq81340mc_pci_init(void) diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c index b3ec11c..8bdfdc5 100644 --- a/arch/arm/mach-iop13xx/iq81340sc.c +++ b/arch/arm/mach-iop13xx/iq81340sc.c @@ -60,7 +60,10 @@ static struct hw_pci iq81340sc_pci __initdata = { .setup = iop13xx_pci_setup, .scan = iop13xx_scan_bus, .map_irq = iq81340sc_atux_map_irq, - .preinit = iop13xx_pci_init + .preinit = iop13xx_pci_init, +#ifdef CONFIG_PCI_MSI + .msi_chip = &iop13xx_msi_chip, +#endif }; static int __init iq81340sc_pci_init(void) diff --git a/arch/arm/mach-iop13xx/msi.c b/arch/arm/mach-iop13xx/msi.c index e7730cf..3135a63 100644 --- a/arch/arm/mach-iop13xx/msi.c +++ b/arch/arm/mach-iop13xx/msi.c @@ -132,7 +132,8 @@ static struct irq_chip iop13xx_msi_chip = { .irq_unmask = unmask_msi_irq, }; -int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) +static int iop13xx_setup_msi_irq(struct msi_chip *chip, + struct pci_dev *dev, struct msi_desc *desc) { int id, irq = irq_alloc_desc_from(IRQ_IOP13XX_MSI_0, -1); struct msi_msg msg; @@ -159,7 +160,13 @@ int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) return 0; } -void arch_teardown_msi_irq(unsigned int irq) +static void iop13xx_teardown_msi_irq(struct msi_chip *chip, + unsigned int irq) { irq_free_desc(irq); } + +struct msi_chip iop13xx_chip = { + .setup_irq = iop13xx_setup_msi_irq, + .teardown_irq = iop13xx_teardown_msi_irq, +}; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/