[Xen-devel] [PATCH v2 16/22] Powerpc/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>
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
---
 arch/powerpc/kernel/msi.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c
index 71bd161..01781a4 100644
--- a/arch/powerpc/kernel/msi.c
+++ b/arch/powerpc/kernel/msi.c
@@ -13,7 +13,7 @@
 
 #include <asm/machdep.h>
 
-int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
+static int ppc_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 {
        if (!ppc_md.setup_msi_irqs || !ppc_md.teardown_msi_irqs) {
                pr_debug("msi: Platform doesn't provide MSI callbacks.\n");
@@ -27,7 +27,17 @@ int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int 
type)
        return ppc_md.setup_msi_irqs(dev, nvec, type);
 }
 
-void arch_teardown_msi_irqs(struct pci_dev *dev)
+static void ppc_teardown_msi_irqs(struct pci_dev *dev)
 {
        ppc_md.teardown_msi_irqs(dev);
 }
+
+static struct msi_chip ppc_msi_chip = {
+       .setup_irqs = ppc_setup_msi_irqs,
+       .teardown_irqs = ppc_teardown_msi_irqs,
+};
+
+struct msi_chip *arch_find_msi_chip(struct pci_dev *dev)
+{
+       return &ppc_msi_chip;
+}
-- 
1.7.1


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