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authorMichael Ellerman <michael@ellerman.id.au>2007-12-17 17:35:53 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-20 16:15:49 +1100
commit84631f37cc405dd6dcd566f9fa4e8a3ca2f03f76 (patch)
treece0657276d19baf01ad8da9f1b27f93feb75bb63 /include
parent53024fe250a0f044b114844a01456902bce40ade (diff)
[POWERPC] Implement pci_set_dma_mask() in terms of the dma_ops
PowerPC currently doesn't implement pci_set_dma_mask(), which means drivers calling it will get the generic version in drivers/pci/pci.c. The powerpc dma mapping ops include a dma_set_mask() hook, which luckily is not implemented by anyone - so there is no bug in the fact that the hook is currently never called. However in future we'll add implementation(s) of dma_set_mask(), and so we need pci_set_dma_mask() to call the hook. To save adding a hook to the dma mapping ops, pci-set_consistent_dma_mask() simply calls the dma_set_mask() hook and then copies the new mask into dev.coherenet_dma_mask. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/dma-mapping.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h
index ff52013c0e2..e974876e18d 100644
--- a/include/asm-powerpc/dma-mapping.h
+++ b/include/asm-powerpc/dma-mapping.h
@@ -87,6 +87,9 @@ static inline int dma_supported(struct device *dev, u64 mask)
return dma_ops->dma_supported(dev, mask);
}
+/* We have our own implementation of pci_set_dma_mask() */
+#define HAVE_ARCH_PCI_SET_DMA_MASK
+
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);