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| author | Daniel Axtens <dja@axtens.net> | 2015-03-31 16:00:42 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-04-11 20:49:11 +1000 |
| commit | e02def5bce12b472e9eb6dcdd9f7af72239e6330 (patch) | |
| tree | 9878fe07343f450446e63976d80a8cb50bc8b4de /arch | |
| parent | c88c2a188905cb3077c3c38dc498e7e9f8eebeee (diff) | |
| download | linux-e02def5bce12b472e9eb6dcdd9f7af72239e6330.tar.gz linux-e02def5bce12b472e9eb6dcdd9f7af72239e6330.tar.bz2 linux-e02def5bce12b472e9eb6dcdd9f7af72239e6330.zip | |
powerpc: Create pci_controller_ops.dma_dev_setup and shim
Introduces the pci_controller_ops structure.
Add pci_controller_ops.dma_dev_setup, shadowing ppc_md.pci_dma_dev_setup.
Add a shim, and change 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')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 21 | ||||
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 3 |
2 files changed, 22 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 2c6dc2a3d14a..0f441b8e1ea1 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -15,6 +15,13 @@ struct device_node; /* + * PCI controller operations + */ +struct pci_controller_ops { + void (*dma_dev_setup)(struct pci_dev *dev); +}; + +/* * Structure of a PCI controller (host bridge) */ struct pci_controller { @@ -46,6 +53,7 @@ struct pci_controller { resource_size_t isa_mem_phys; resource_size_t isa_mem_size; + struct pci_controller_ops controller_ops; struct pci_ops *ops; unsigned int __iomem *cfg_addr; void __iomem *cfg_data; @@ -260,5 +268,18 @@ static inline int pcibios_vaddr_is_ioport(void __iomem *address) } #endif /* CONFIG_PCI */ +/* + * Shims to prefer pci_controller version over ppc_md where available. + */ +static inline void pci_dma_dev_setup(struct pci_dev *dev) +{ + struct pci_controller *phb = pci_bus_to_host(dev->bus); + + if (phb->controller_ops.dma_dev_setup) + phb->controller_ops.dma_dev_setup(dev); + else if (ppc_md.pci_dma_dev_setup) + ppc_md.pci_dma_dev_setup(dev); +} + #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 17827c7345a7..7e3757e403d4 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -969,8 +969,7 @@ static void pcibios_setup_device(struct pci_dev *dev) set_dma_offset(&dev->dev, PCI_DRAM_OFFSET); /* Additional platform DMA/iommu setup */ - if (ppc_md.pci_dma_dev_setup) - ppc_md.pci_dma_dev_setup(dev); + pci_dma_dev_setup(dev); /* Read default IRQs and fixup if necessary */ pci_read_irq_line(dev); |