[Xen-devel] [RFC PATCH 17/20] IA64/MSI: Use msi_chip instead of arch func to configure MSI/MSI-X

[Yijing Wang <wangyijing@xxxxxxxxxx>]

Introduce a new struct msi_chip ia64_msi_chip instead of weak arch
functions to configure MSI/MSI-X.

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 c430f91..6e527c4 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 device *dev, struct msi_desc *desc)
 {
        if (platform_setup_msi_irq)
-               return platform_setup_msi_irq(pdev, desc);
+               return platform_setup_msi_irq(to_pci_dev(dev), desc);
 
-       return ia64_setup_msi_irq(pdev, desc);
+       return ia64_setup_msi_irq(to_pci_dev(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_get_match_msi_chip(struct device *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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