[PATCH 04/16] Irq_remapping/MSI: Use MSI controller framework to configure MSI/MSI-X irq
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- To: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
- Subject: [PATCH 04/16] Irq_remapping/MSI: Use MSI controller framework to configure MSI/MSI-X irq
- From: Yijing Wang <wangyijing@xxxxxxxxxx>
- Date: Mon, 27 Oct 2014 21:22:10 +0800
- Cc: <linux-pci@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, Xinwei Hu <huxinwei@xxxxxxxxxx>, Wuyun <wuyun.wu@xxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxxx>, <x86@xxxxxxxxxx>, 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: <1414416142-31239-1-git-send-email-wangyijing@huawei.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1414416142-31239-1-git-send-email-wangyijing@huawei.com>
Use MSI controller 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>
---
drivers/iommu/irq_remapping.c | 11 ++++++++---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 74a1767..6db1459 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -140,8 +140,8 @@ error:
return ret;
}
-static int irq_remapping_setup_msi_irqs(struct pci_dev *dev,
- int nvec, int type)
+static int irq_remapping_setup_msi_irqs(struct msi_controller *ctrl,
+ struct pci_dev *dev, int nvec, int type)
{
if (type == PCI_CAP_ID_MSI)
return do_setup_msi_irqs(dev, nvec);
@@ -149,6 +149,11 @@ static int irq_remapping_setup_msi_irqs(struct pci_dev *dev,
return do_setup_msix_irqs(dev, nvec);
}
+static struct msi_controller remap_msi_ctrl = {
+ .setup_irqs = irq_remapping_setup_msi_irqs,
+ .teardown_irq = native_teardown_msi_irq,
+};
+
static void eoi_ioapic_pin_remapped(int apic, int pin, int vector)
{
/*
@@ -166,9 +171,9 @@ static void __init irq_remapping_modify_x86_ops(void)
x86_io_apic_ops.set_affinity = set_remapped_irq_affinity;
x86_io_apic_ops.setup_entry = setup_ioapic_remapped_entry;
x86_io_apic_ops.eoi_ioapic_pin = eoi_ioapic_pin_remapped;
- x86_msi.setup_msi_irqs = irq_remapping_setup_msi_irqs;
x86_msi.setup_hpet_msi = setup_hpet_msi_remapped;
x86_msi.compose_msi_msg = compose_remapped_msi_msg;
+ x86_msi_ctrl = &remap_msi_ctrl;
}
static __init int setup_nointremap(char *str)
--
1.7.1
--
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