dma_buf_vmap man page on Oracle

dma_buf_vmap man page on Oracle

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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.

COPYRIGHT
Kernel Hackers Manual 3.8.	   June 2014		       DMA_BUF_VMAP(9)

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