diff options
Diffstat (limited to 'Documentation/DMA-mapping.txt')
| -rw-r--r-- | Documentation/DMA-mapping.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/DMA-mapping.txt b/Documentation/DMA-mapping.txt index 7c717699032c..63392c9132b4 100644 --- a/Documentation/DMA-mapping.txt +++ b/Documentation/DMA-mapping.txt | |||
| @@ -698,12 +698,12 @@ these interfaces. Remember that, as defined, consistent mappings are | |||
| 698 | always going to be SAC addressable. | 698 | always going to be SAC addressable. |
| 699 | 699 | ||
| 700 | The first thing your driver needs to do is query the PCI platform | 700 | The first thing your driver needs to do is query the PCI platform |
| 701 | layer with your devices DAC addressing capabilities: | 701 | layer if it is capable of handling your devices DAC addressing |
| 702 | capabilities: | ||
| 702 | 703 | ||
| 703 | int pci_dac_set_dma_mask(struct pci_dev *pdev, u64 mask); | 704 | int pci_dac_dma_supported(struct pci_dev *hwdev, u64 mask); |
| 704 | 705 | ||
| 705 | This routine behaves identically to pci_set_dma_mask. You may not | 706 | You may not use the following interfaces if this routine fails. |
| 706 | use the following interfaces if this routine fails. | ||
| 707 | 707 | ||
| 708 | Next, DMA addresses using this API are kept track of using the | 708 | Next, DMA addresses using this API are kept track of using the |
| 709 | dma64_addr_t type. It is guaranteed to be big enough to hold any | 709 | dma64_addr_t type. It is guaranteed to be big enough to hold any |
