Name
drm_gem_prime_handle_to_fd —
PRIME export function for GEM drivers
Synopsis
int drm_gem_prime_handle_to_fd ( | struct drm_device * dev, |
| | struct drm_file * file_priv, |
| | uint32_t handle, |
| | uint32_t flags, |
| | int * prime_fd); |
Arguments
dev
dev to export the buffer from
file_priv
drm file-private structure
handle
buffer handle to export
flags
flags like DRM_CLOEXEC
prime_fd
pointer to storage for the fd id of the create dma-buf
Description
This is the PRIME export function which must be used mandatorily by GEM
drivers to ensure correct lifetime management of the underlying GEM object.
The actual exporting from GEM object to a dma-buf is done through the
gem_prime_export driver callback.