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authorStephen Rothwell <sfr@canb.auug.org.au>2007-03-04 17:02:41 +1100
committerPaul Mackerras <paulus@samba.org>2007-03-09 15:03:25 +1100
commit57190708f1f52d732d94fa21a8e576302d384d33 (patch)
treee288959df1d9ed7cb4664ce17b792e065a4d97a1 /include/asm-powerpc/pci.h
parent9874777016e06ad2df420237963e81389776cb6d (diff)
downloadop-kernel-dev-57190708f1f52d732d94fa21a8e576302d384d33.zip
op-kernel-dev-57190708f1f52d732d94fa21a8e576302d384d33.tar.gz
[POWERPC] Create and use get_pci_dma_ops()
This allows us to hide pci_dma_ops. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pci.h')
-rw-r--r--include/asm-powerpc/pci.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h
index ebf31f1..ce0f13e 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);
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