diff options
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/platforms/cell/iommu.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/celleb/iommu.c | 2 | ||||
| -rw-r--r-- | include/asm-powerpc/pci.h | 10 |
4 files changed, 16 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 73d509343d5b..db1d40ef7d60 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -61,8 +61,7 @@ void iSeries_pcibios_init(void); LIST_HEAD(hose_list); -struct dma_mapping_ops *pci_dma_ops; -EXPORT_SYMBOL(pci_dma_ops); +static struct dma_mapping_ops *pci_dma_ops; int global_phb_number; /* Global phb counter */ @@ -75,6 +74,12 @@ void set_pci_dma_ops(struct dma_mapping_ops *dma_ops) pci_dma_ops = dma_ops; } +struct dma_mapping_ops *get_pci_dma_ops(void) +{ + return pci_dma_ops; +} +EXPORT_SYMBOL(get_pci_dma_ops); + static void fixup_broken_pcnet32(struct pci_dev* dev) { if ((dev->class>>8 == PCI_CLASS_NETWORK_ETHERNET)) { diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index d0e02ea1d538..7c953cc022f6 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -496,7 +496,7 @@ static void cell_dma_dev_setup(struct device *dev) struct dev_archdata *archdata = &dev->archdata; /* If we run without iommu, no need to do anything */ - if (pci_dma_ops == &dma_direct_ops) + if (get_pci_dma_ops() == &dma_direct_ops) return; /* Current implementation uses the first window available in that @@ -530,7 +530,7 @@ static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action, return 0; /* We use the PCI DMA ops */ - dev->archdata.dma_ops = pci_dma_ops; + dev->archdata.dma_ops = get_pci_dma_ops(); cell_dma_dev_setup(dev); diff --git a/arch/powerpc/platforms/celleb/iommu.c b/arch/powerpc/platforms/celleb/iommu.c index fecc4ffd475e..e94de6a24622 100644 --- a/arch/powerpc/platforms/celleb/iommu.c +++ b/arch/powerpc/platforms/celleb/iommu.c @@ -80,7 +80,7 @@ static int celleb_of_bus_notify(struct notifier_block *nb, if (action != BUS_NOTIFY_ADD_DEVICE) return 0; - dev->archdata.dma_ops = pci_dma_ops; + dev->archdata.dma_ops = get_pci_dma_ops(); return 0; } diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h index ebf31f1c5915..ce0f13e8eb14 100644 --- a/include/asm-powerpc/pci.h +++ b/include/asm-powerpc/pci.h @@ -71,17 +71,18 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) #define PCI_DISABLE_MWI #ifdef CONFIG_PCI -extern struct dma_mapping_ops *pci_dma_ops; - extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops); +extern struct dma_mapping_ops *get_pci_dma_ops(void); /* For DAC DMA, we currently don't support it by default, but * we let 64-bit platforms override this. */ static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) { - if (pci_dma_ops && pci_dma_ops->dac_dma_supported) - return pci_dma_ops->dac_dma_supported(&hwdev->dev, mask); + struct dma_mapping_ops *d = get_pci_dma_ops(); + + if (d && d->dac_dma_supported) + return d->dac_dma_supported(&hwdev->dev, mask); return 0; } @@ -103,6 +104,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, } #else /* CONFIG_PCI */ #define set_pci_dma_ops(d) +#define get_pci_dma_ops() NULL #endif extern int pci_domain_nr(struct pci_bus *bus); |