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-rw-r--r--Documentation/DMA-mapping.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt
index 7c717699032..63392c9132b 100644
--- a/Documentation/DMA-mapping.txt
+++ b/Documentation/DMA-mapping.txt
@@ -698,12 +698,12 @@ these interfaces. Remember that, as defined, consistent mappings are
always going to be SAC addressable.
The first thing your driver needs to do is query the PCI platform
-layer with your devices DAC addressing capabilities:
+layer if it is capable of handling your devices DAC addressing
+capabilities:
- int pci_dac_set_dma_mask(struct pci_dev *pdev, u64 mask);
+ int pci_dac_dma_supported(struct pci_dev *hwdev, u64 mask);
-This routine behaves identically to pci_set_dma_mask. You may not
-use the following interfaces if this routine fails.
+You may not use the following interfaces if this routine fails.
Next, DMA addresses using this API are kept track of using the
dma64_addr_t type. It is guaranteed to be big enough to hold any