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| author | Len Brown <len.brown@intel.com> | 2009-01-09 11:39:43 +0300 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-01-09 11:39:43 +0300 |
| commit | b2576e1d4408e134e2188c967b1f28af39cd79d4 (patch) | |
| tree | 004f3c82faab760f304ce031d6d2f572e7746a50 /Documentation/PCI/pci.txt | |
| parent | 3cc8a5f4ba91f67bbdb81a43a99281a26aab8d77 (diff) | |
| parent | 2150edc6c5cf00f7adb54538b9ea2a3e9cedca3f (diff) | |
| download | linux-b2576e1d4408e134e2188c967b1f28af39cd79d4.tar.xz | |
Merge branch 'linus' into release
Diffstat (limited to 'Documentation/PCI/pci.txt')
| -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. pci_set_master() will enable DMA by setting the bus master bit in the PCI_COMMAND register. It also fixes the latency timer value if -it's set to something bogus by the BIOS. +it's set to something bogus by the BIOS. pci_clear_master() will +disable DMA by clearing the bus master bit. If the PCI device can use the PCI Memory-Write-Invalidate transaction, call pci_set_mwi(). This enables the PCI_COMMAND bit for Mem-Wr-Inval |