DMA_BUF_VMAP(9)                   Device drivers infrastructure                   DMA_BUF_VMAP(9)



NAME
       dma_buf_vmap - Create virtual mapping for the buffer object into kernel address space.
       Same restrictions as for vmap and friends apply.

SYNOPSIS
       void * dma_buf_vmap(struct dma_buf * dmabuf);

ARGUMENTS
       dmabuf
           [in] buffer to vmap

DESCRIPTION
       This call may fail due to lack of virtual mapping address space. These calls are optional
       in drivers. The intended use for them is for mapping objects linear in kernel space for
       high use objects. Please attempt to use kmap/kunmap before thinking about these
       interfaces.

       Returns NULL on error.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                           DMA_BUF_VMAP(9)