[Xen-devel] [RFC PATCH 14/20] Powerpc/MSI: Use msi_chip instead of arch func to configure MSI/MSI-X

[Yijing Wang <wangyijing@xxxxxxxxxx>]

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

Signed-off-by: Yijing Wang <wangyijing@xxxxxxxxxx>
---
 arch/powerpc/kernel/msi.c |   23 +++++++++++++++++------
 1 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c
index 8bbc12d..170b02c 100644
--- a/arch/powerpc/kernel/msi.c
+++ b/arch/powerpc/kernel/msi.c
@@ -13,7 +13,7 @@
 
 #include <asm/machdep.h>
 
-int arch_msi_check_device(struct pci_dev* dev, int nvec, int type)
+int ppc_msi_check_device(struct device *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");
@@ -26,18 +26,29 @@ int arch_msi_check_device(struct pci_dev* dev, int nvec, 
int type)
 
        if (ppc_md.msi_check_device) {
                pr_debug("msi: Using platform check routine.\n");
-               return ppc_md.msi_check_device(dev, nvec, type);
+               return ppc_md.msi_check_device(to_pci_dev(dev), nvec, type);
        }
 
         return 0;
 }
 
-int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
+int ppc_setup_msi_irqs(struct device *dev, int nvec, int type)
 {
-       return ppc_md.setup_msi_irqs(dev, nvec, type);
+       return ppc_md.setup_msi_irqs(to_pci_dev(dev), nvec, type);
 }
 
-void arch_teardown_msi_irqs(struct pci_dev *dev)
+void ppc_teardown_msi_irqs(struct device *dev)
 {
-       ppc_md.teardown_msi_irqs(dev);
+       ppc_md.teardown_msi_irqs(to_pci_dev(dev));
+}
+
+struct msi_chip ppc_msi_chip = {
+       .setup_irqs = ppc_setup_msi_irqs,
+       .teardown_irqs = ppc_teardown_msi_irqs,
+       .check_device = ppc_msi_check_device,
+};
+
+struct msi_chip *arch_get_match_msi_chip(struct device *dev)
+{
+       return &ppc_msi_chip;
 }
-- 
1.7.1


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