[Xen-devel] [PATCH v2 15/22] MIPS/Xlr/MSI: Use MSI chip framework to configure MSI/MSI-X irq

[Yijing Wang <wangyijing@xxxxxxxxxx>]

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/mips/pci/pci-xlr.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c
index 0dde803..7bd91cc 100644
--- a/arch/mips/pci/pci-xlr.c
+++ b/arch/mips/pci/pci-xlr.c
@@ -214,11 +214,11 @@ static int get_irq_vector(const struct pci_dev *dev)
 }
 
 #ifdef CONFIG_PCI_MSI
-void arch_teardown_msi_irq(unsigned int irq)
+void xlr_teardown_msi_irq(unsigned int irq)
 {
 }
 
-int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
+int xlr_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 {
        struct msi_msg msg;
        struct pci_dev *lnk;
@@ -263,6 +263,17 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct 
msi_desc *desc)
        write_msi_msg(irq, &msg);
        return 0;
 }
+
+static struct msi_chip xlr_msi_chip = {
+       .setup_irq = xlr_setup_msi_irq,
+       .teardown_irq = xlr_teardown_msi_irq,
+};
+
+struct msi_chip *arch_find_msi_chip(struct pci_dev *dev)
+{
+       return &xlr_msi_chip;
+}
+
 #endif
 
 /* Extra ACK needed for XLR on chip PCI controller */
-- 
1.7.1


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