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powerpc: Create pci_controller_ops.dma_bus_setup and shim 

Add pci_controller_ops.dma_bus_setup, shadowing ppc_md.pci_dma_bus_setup.
Add a shim, and changes the callsites to use the shim.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Daniel Axtens 2015-03-31 16:00:43 +11:00 committed by Michael Ellerman
parent e02def5bce
commit b122c95494
2 changed files with 12 additions and 2 deletions
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11
arch/powerpc/include/asm/pci-bridge.h
View File

@ -19,6 +19,7 @@ struct device_node;
*/
struct pci_controller_ops {
void (*dma_dev_setup)(struct pci_dev *dev);
void (*dma_bus_setup)(struct pci_bus *bus);
};
/*
@ -281,5 +282,15 @@ static inline void pci_dma_dev_setup(struct pci_dev *dev)
ppc_md.pci_dma_dev_setup(dev);
}
static inline void pci_dma_bus_setup(struct pci_bus *bus)
{
struct pci_controller *phb = pci_bus_to_host(bus);
if (phb->controller_ops.dma_bus_setup)
phb->controller_ops.dma_bus_setup(bus);
else if (ppc_md.pci_dma_bus_setup)
ppc_md.pci_dma_bus_setup(bus);
}
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_PCI_BRIDGE_H */

3
arch/powerpc/kernel/pci-common.c
View File

@ -953,8 +953,7 @@ void pcibios_setup_bus_self(struct pci_bus *bus)
ppc_md.pcibios_fixup_bus(bus);
/* Setup bus DMA mappings */
if (ppc_md.pci_dma_bus_setup)
ppc_md.pci_dma_bus_setup(bus);
pci_dma_bus_setup(bus);
}
static void pcibios_setup_device(struct pci_dev *dev)