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authorDaniel Axtens <dja@axtens.net>2015-03-31 16:00:43 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2015-04-11 20:49:11 +1000
commitb122c95494374ab848f8d9f41d98644c2c318ecc (patch)
tree071023b384a0f6aa413110c65f6f4ccb7246a203 /arch/powerpc
parente02def5bce12b472e9eb6dcdd9f7af72239e6330 (diff)
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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/pci-bridge.h11
-rw-r--r--arch/powerpc/kernel/pci-common.c3
2 files changed, 12 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 0f441b8e1ea1..b9732fcb0f5f 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -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 */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 7e3757e403d4..af357cc38ff6 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -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)