vm_iomap_memory — remap memory to userspace


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


struct vm_area_struct * vma

user vma to map to

phys_addr_t start

start of area

unsigned long len

size of area


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.