diff options
Diffstat (limited to 'Documentation/PCI')
| -rw-r--r-- | Documentation/PCI/pci.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt index fd4907a2968c..7f6de6ea5b47 100644 --- a/Documentation/PCI/pci.txt +++ b/Documentation/PCI/pci.txt | |||
| @@ -294,7 +294,8 @@ NOTE: pci_enable_device() can fail! Check the return value. | |||
| 294 | 294 | ||
| 295 | pci_set_master() will enable DMA by setting the bus master bit | 295 | pci_set_master() will enable DMA by setting the bus master bit |
| 296 | in the PCI_COMMAND register. It also fixes the latency timer value if | 296 | in the PCI_COMMAND register. It also fixes the latency timer value if |
| 297 | it's set to something bogus by the BIOS. | 297 | it's set to something bogus by the BIOS. pci_clear_master() will |
| 298 | disable DMA by clearing the bus master bit. | ||
| 298 | 299 | ||
| 299 | If the PCI device can use the PCI Memory-Write-Invalidate transaction, | 300 | If the PCI device can use the PCI Memory-Write-Invalidate transaction, |
| 300 | call pci_set_mwi(). This enables the PCI_COMMAND bit for Mem-Wr-Inval | 301 | call pci_set_mwi(). This enables the PCI_COMMAND bit for Mem-Wr-Inval |