VM_IOMAP_MEMORY(9)                  Memory Management in Linux                 VM_IOMAP_MEMORY(9)



NAME
       vm_iomap_memory - remap memory to userspace

SYNOPSIS
       int vm_iomap_memory(struct vm_area_struct * vma, phys_addr_t start, unsigned long len);

ARGUMENTS
       vma
           user vma to map to

       start
           start of area

       len
           size of area

DESCRIPTION
       This is a simplified io_remap_pfn_range for common driver use. The driver just needs to
       give us the physical memory range to be mapped, we'll figure out the rest from the vma
       information.

       NOTE! Some drivers might want to tweak vma->vm_page_prot first to get whatever
       write-combining details or similar.

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