[PATCH v2 19/22] IA64/MSI: Use MSI chip framework to configure MSI/MSI-X irq
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- To: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
- Subject: [PATCH v2 19/22] IA64/MSI: Use MSI chip framework to configure MSI/MSI-X irq
- From: Yijing Wang <wangyijing@xxxxxxxxxx>
- Date: Thu, 25 Sep 2014 11:14:29 +0800
- Cc: <linux-pci@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, Xinwei Hu <huxinwei@xxxxxxxxxx>, Wuyun <wuyun.wu@xxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxxx>, <linux-arch@xxxxxxxxxxxxxxx>, <arnab.basu@xxxxxxxxxxxxx>, <Bharat.Bhushan@xxxxxxxxxxxxx>, <x86@xxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>, <linux-mips@xxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, <linuxppc-dev@xxxxxxxxxxxxxxxx>, <linux-s390@xxxxxxxxxxxxxxx>, Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>, "Tony Luck" <tony.luck@xxxxxxxxx>, <linux-ia64@xxxxxxxxxxxxxxx>, "David S. Miller" <davem@xxxxxxxxxxxxx>, <sparclinux@xxxxxxxxxxxxxxx>, Chris Metcalf <cmetcalf@xxxxxxxxxx>, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Lucas Stach <l.stach@xxxxxxxxxxxxxx>, David Vrabel <david.vrabel@xxxxxxxxxx>, "Sergei Shtylyov" <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Thierry Reding <thierry.reding@xxxxxxxxx>, "Thomas Petazzoni" <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>, Yijing Wang <wangyijing@xxxxxxxxxx>
- In-reply-to: <1411614872-4009-1-git-send-email-wangyijing@huawei.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1411614872-4009-1-git-send-email-wangyijing@huawei.com>
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 <wangyijing@xxxxxxxxxx>
---
arch/ia64/kernel/msi_ia64.c | 18 ++++++++++++++----
1 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 4efe748..55ac859 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -112,15 +112,15 @@ static struct irq_chip ia64_msi_chip = {
};
-int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
+static int arch_ia64_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
{
if (platform_setup_msi_irq)
- return platform_setup_msi_irq(pdev, desc);
+ return platform_setup_msi_irq(dev, desc);
- return ia64_setup_msi_irq(pdev, desc);
+ return ia64_setup_msi_irq(dev, desc);
}
-void arch_teardown_msi_irq(unsigned int irq)
+static void arch_ia64_teardown_msi_irq(unsigned int irq)
{
if (platform_teardown_msi_irq)
return platform_teardown_msi_irq(irq);
@@ -128,6 +128,16 @@ void arch_teardown_msi_irq(unsigned int irq)
return ia64_teardown_msi_irq(irq);
}
+static struct msi_chip chip = {
+ .setup_irq = arch_ia64_setup_msi_irq,
+ .teardown_irq = arch_ia64_teardown_msi_irq,
+};
+
+struct msi_chip *arch_find_msi_chip(struct pci_dev *dev)
+{
+ return &chip;
+}
+
#ifdef CONFIG_INTEL_IOMMU
#ifdef CONFIG_SMP
static int dmar_msi_set_affinity(struct irq_data *data,
--
1.7.1
--
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