etnaviv_gem_mmap 500 drivers/gpu/drm/etnaviv/etnaviv_drv.c .mmap = etnaviv_gem_mmap, etnaviv_gem_mmap 50 drivers/gpu/drm/etnaviv/etnaviv_drv.h int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);