SYNOPSIS

void __drm_gem_object_unreference(struct drm_gem_object * obj);

ARGUMENTS

obj

GEM buffer object

DESCRIPTION

This function is meant to be used by drivers which are not encumbered with dev->struct_mutex legacy locking and which are using the gem_free_object_unlocked callback. It avoids all the locking checks and locking overhead of drm_gem_object_unreference and drm_gem_object_unreference_unlocked.

Drivers should never call this directly in their code. Instead they should wrap it up into a driver_gem_object_unreference(struct driver_gem_object *obj) wrapper function, and use that. Shared code should never call this, to avoid breaking drivers by accident which still depend upon dev->struct_mutex locking.

AUTHORS

Jesse Barnes <jesse.barnes@intel.com>
Intel Corporation,         
        

Initial version

Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <daniel.vetter@ffwll.ch>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <lukas@wunner.de>

vga_switcheroo documentation

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