[Xen-devel] [RFC PATCH 12/20] MIPS/Xlp/MSI: Use msi_chip instead of arch func to configure MSI/MSI-X

[Yijing Wang <wangyijing@xxxxxxxxxx>]

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

Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
 arch/mips/pci/msi-xlp.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/mips/pci/msi-xlp.c b/arch/mips/pci/msi-xlp.c
index fa374fe..6c27346 100644
--- a/arch/mips/pci/msi-xlp.c
+++ b/arch/mips/pci/msi-xlp.c
@@ -245,7 +245,7 @@ static struct irq_chip xlp_msix_chip = {
        .irq_unmask     = unmask_msi_irq,
 };
 
-void arch_teardown_msi_irq(unsigned int irq)
+void xlp_teardown_msi_irq(unsigned int irq)
 {
 }
 
@@ -452,11 +452,12 @@ 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)
+int xlp_setup_msi_irq(struct device *d, struct msi_desc *desc)
 {
        struct pci_dev *lnkdev;
        uint64_t lnkbase;
        int node, link, slot;
+       struct pci_dev *dev = to_pci_dev(d);
 
        lnkdev = xlp_get_pcie_link(dev);
        if (lnkdev == NULL) {
@@ -474,6 +475,16 @@ 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,
+};
+
+struct msi_chip *arch_get_match_msi_chip(struct device *dev)
+{
+       return &xlp_chip;
+}
+
 void __init xlp_init_node_msi_irqs(int node, int link)
 {
        struct nlm_soc_info *nodep;
-- 
1.7.1


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