Name
drm_gem_cma_mmap —
memory-map a CMA GEM object
Synopsis
int drm_gem_cma_mmap ( | struct file * filp, |
| | struct vm_area_struct * vma); |
Arguments
filp
file object
vma
VMA for the area to be mapped
Description
This function implements an augmented version of the GEM DRM file mmap
operation for CMA objects
In addition to the usual GEM VMA setup it
immediately faults in the entire object instead of using on-demaind
faulting. Drivers which employ the CMA helpers should use this function
as their ->mmap handler in the DRM device file's file_operations
structure.
Returns
0 on success or a negative error code on failure.