USE_HASH_FUNCTION 1010 drivers/gpu/drm/radeon/evergreend.h #define		USE_HASH_FUNCTION				(1 << 0)
USE_HASH_FUNCTION  473 drivers/gpu/drm/radeon/nid.h #define		USE_HASH_FUNCTION				(1 << 0)
USE_HASH_FUNCTION  513 drivers/gpu/drm/radeon/rv770d.h #define		USE_HASH_FUNCTION				(1 << 0)