Lines Matching refs:mmap

336 Direct Userspace Access/mmap Support
339 Being able to mmap an export dma-buf buffer object has 2 main use-cases:
341 - supporting existing mmap interfaces in importers.
349    from userspace using mmap.
356    No special interfaces, userspace simply calls mmap on the dma-buf fd.
358 2. Supporting existing mmap interfaces in importers
365    mmap a buffer rather invasive.
368    initial mmap is all that's needed. A survey of some of the existing
379    If the importing subsystem simply provides a special-purpose mmap call to set
401    for userspace mappings. But the current assumption is that using mmap is
449   coherency for mmap support, it needs to be able to zap all the ptes pointing
456   by setting vma->vm_file and adjusting vma->vm_pgoff in the dma_buf mmap