Prime import function for gem drivers
int drm_gem_prime_fd_to_handle(struct drm_device * dev, struct drm_file * file_priv, int prime_fd, uint32_t * handle);
dev
dev to export the buffer from
file_priv
drm file-private structure
prime_fd
fd id of the dma-buf which should be imported
handle
pointer to storage for the handle of the imported buffer object
This is the PRIME import function which must be used mandatorily by GEM drivers to ensure correct lifetime management of the underlying GEM object. The actual importing of GEM object from the dma-buf is done through the gem_import_export driver callback.
Jesse Barnes <[email protected]>
Intel Corporation,
Initial version
Laurent Pinchart <[email protected]>
Ideas on board SPRL,
Driver internals
Daniel Vetter <[email protected]>
Intel Corporation,
Contributions all over the place