From patchwork Wed Oct 15 03:07:07 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 5083561 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 561DCC11AC for ; Wed, 15 Oct 2014 02:45:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 73539200ED for ; Wed, 15 Oct 2014 02:45:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 989D9200EC for ; Wed, 15 Oct 2014 02:45:38 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XeEXu-0003Yp-Hd; Wed, 15 Oct 2014 02:42:38 +0000 Received: from szxga03-in.huawei.com ([119.145.14.66]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XeEPI-0001ma-IO for linux-arm-kernel@lists.infradead.org; Wed, 15 Oct 2014 02:33:46 +0000 Received: from 172.24.2.119 (EHLO szxeml412-hub.china.huawei.com) ([172.24.2.119]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id AVO63802; Wed, 15 Oct 2014 10:25:59 +0800 (CST) Received: from localhost.localdomain (10.175.100.166) by szxeml412-hub.china.huawei.com (10.82.67.91) with Microsoft SMTP Server id 14.3.158.1; Wed, 15 Oct 2014 10:25:48 +0800 From: Yijing Wang To: Bjorn Helgaas Subject: [PATCH v3 19/27] MIPS/Xlp/MSI: Use MSI chip framework to configure MSI/MSI-X irq Date: Wed, 15 Oct 2014 11:07:07 +0800 Message-ID: <1413342435-7876-20-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 X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020209.543DDB37.00B8, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 0054f166a817865d82e6391a1024f9e5 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141014_193345_110025_AB3D114A X-CRM114-Status: GOOD ( 12.36 ) X-Spam-Score: -0.7 (/) Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, linux-pci@vger.kernel.org, Bharat.Bhushan@freescale.com, Yijing Wang , Thierry Reding , sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Russell King , Michael Ellerman , Joerg Roedel , x86@kernel.org, Sebastian Ott , Benjamin Herrenschmidt , xen-devel@lists.xenproject.org, arnab.basu@freescale.com, Liviu Dudau , Arnd Bergmann , Konrad Rzeszutek Wilk , Chris Metcalf , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Thomas Petazzoni , Xinwei Hu , Tony Luck , Sergei Shtylyov , linux-kernel@vger.kernel.org, Ralf Baechle , iommu@lists.linux-foundation.org, David Vrabel , Wuyun , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , Lucas Stach X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, 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 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/mips/include/asm/netlogic/xlp-hal/pcibus.h | 1 + arch/mips/pci/msi-xlp.c | 11 +++++++++-- arch/mips/pci/pci-xlp.c | 3 +++ 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h index 91540f4..90646ad 100644 --- a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h +++ b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h @@ -103,6 +103,7 @@ #ifdef CONFIG_PCI_MSI void xlp_init_node_msi_irqs(int node, int link); +extern struct msi_chip xlp_chip; #else static inline void xlp_init_node_msi_irqs(int node, int link) {} #endif diff --git a/arch/mips/pci/msi-xlp.c b/arch/mips/pci/msi-xlp.c index e469dc7..cca2257 100644 --- a/arch/mips/pci/msi-xlp.c +++ b/arch/mips/pci/msi-xlp.c @@ -245,7 +245,8 @@ static struct irq_chip xlp_msix_chip = { .irq_unmask = unmask_msi_irq, }; -void arch_teardown_msi_irq(unsigned int irq) +static void xlp_teardown_msi_irq(struct msi_chip *chip, + unsigned int irq) { } @@ -450,7 +451,8 @@ static int xlp_setup_msix(uint64_t lnkbase, int node, int link, return 0; } -int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) +static int xlp_setup_msi_irq(struct msi_chip *chip, + struct pci_dev *dev, struct msi_desc *desc) { struct pci_dev *lnkdev; uint64_t lnkbase; @@ -472,6 +474,11 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) return xlp_setup_msi(lnkbase, node, link, desc); } +struct msi_chip xlp_chip = { + .setup_irq = xlp_setup_msi_irq, + .teardown_irq = xlp_teardown_msi_irq, +}; + void __init xlp_init_node_msi_irqs(int node, int link) { struct nlm_soc_info *nodep; diff --git a/arch/mips/pci/pci-xlp.c b/arch/mips/pci/pci-xlp.c index 7babf01..5d7b6a0 100644 --- a/arch/mips/pci/pci-xlp.c +++ b/arch/mips/pci/pci-xlp.c @@ -174,6 +174,9 @@ struct pci_controller nlm_pci_controller = { .mem_offset = 0x00000000UL, .io_resource = &nlm_pci_io_resource, .io_offset = 0x00000000UL, +#ifdef CONFIG_PCI_MSI + .msi_chip = &xlp_chip, +#endif }; struct pci_dev *xlp_get_pcie_link(const struct pci_dev *dev)