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authorStephen Rothwell <sfr@canb.auug.org.au>2007-03-04 01:02:41 -0500
committerPaul Mackerras <paulus@samba.org>2007-03-08 23:03:25 -0500
commit57190708f1f52d732d94fa21a8e576302d384d33 (patch)
treee288959df1d9ed7cb4664ce17b792e065a4d97a1 /include/asm-powerpc/pci.h
parent9874777016e06ad2df420237963e81389776cb6d (diff)
[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 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)
71#define PCI_DISABLE_MWI 71#define PCI_DISABLE_MWI
72 72
73#ifdef CONFIG_PCI 73#ifdef CONFIG_PCI
74extern struct dma_mapping_ops *pci_dma_ops;
75
76extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops); 74extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops);
75extern struct dma_mapping_ops *get_pci_dma_ops(void);
77 76
78/* For DAC DMA, we currently don't support it by default, but 77/* For DAC DMA, we currently don't support it by default, but
79 * we let 64-bit platforms override this. 78 * we let 64-bit platforms override this.
80 */ 79 */
81static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) 80static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)
82{ 81{
83 if (pci_dma_ops && pci_dma_ops->dac_dma_supported) 82 struct dma_mapping_ops *d = get_pci_dma_ops();
84 return pci_dma_ops->dac_dma_supported(&hwdev->dev, mask); 83
84 if (d && d->dac_dma_supported)
85 return d->dac_dma_supported(&hwdev->dev, mask);
85 return 0; 86 return 0;
86} 87}
87 88
@@ -103,6 +104,7 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
103} 104}
104#else /* CONFIG_PCI */ 105#else /* CONFIG_PCI */
105#define set_pci_dma_ops(d) 106#define set_pci_dma_ops(d)
107#define get_pci_dma_ops() NULL
106#endif 108#endif
107 109
108extern int pci_domain_nr(struct pci_bus *bus); 110extern int pci_domain_nr(struct pci_bus *bus);