diff options
Diffstat (limited to 'Documentation/driver-api/pci/p2pdma.rst')
| -rw-r--r-- | Documentation/driver-api/pci/p2pdma.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/driver-api/pci/p2pdma.rst b/Documentation/driver-api/pci/p2pdma.rst index 280673b50350..d3f406cca694 100644 --- a/Documentation/driver-api/pci/p2pdma.rst +++ b/Documentation/driver-api/pci/p2pdma.rst @@ -38,7 +38,7 @@ for all usage refcounts to reach zero. At the lowest level the P2P subsystem offers a naked struct p2p_provider that delegates lifecycle management to the providing driver. It is expected that drivers using this option will wrap their MMIO memory in DMABUF and use DMABUF -to provide an invalidation shutdown. These MMIO addresess have no struct page, and +to provide an invalidation shutdown. These MMIO addresses have no struct page, and if used with mmap() must create special PTEs. As such there are very few kernel uAPIs that can accept pointers to them; in particular they cannot be used with read()/write(), including O_DIRECT. |