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Diffstat (limited to 'Documentation/PCI/pci.rst')
| -rw-r--r-- | Documentation/PCI/pci.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/PCI/pci.rst b/Documentation/PCI/pci.rst index 67a850b55617..cced568d78e9 100644 --- a/Documentation/PCI/pci.rst +++ b/Documentation/PCI/pci.rst @@ -273,12 +273,12 @@ Set the DMA mask size While all drivers should explicitly indicate the DMA capability (e.g. 32 or 64 bit) of the PCI bus master, devices with more than 32-bit bus master capability for streaming data need the driver -to "register" this capability by calling pci_set_dma_mask() with +to "register" this capability by calling dma_set_mask() with appropriate parameters. In general this allows more efficient DMA on systems where System RAM exists above 4G _physical_ address. Drivers for all PCI-X and PCIe compliant devices must call -set_dma_mask() as they are 64-bit DMA devices. +dma_set_mask() as they are 64-bit DMA devices. Similarly, drivers must also "register" this capability if the device can directly address "coherent memory" in System RAM above 4G physical |