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#define memmove __builtin_memmove

int gem_object_lock(struct drm_i915_gem_object *obj);

int lock_surface(struct io_call_12 *pbitmap)

{

    int ret;

    drm_i915_private_t *dev_priv = main_device->dev_private;

    bitmap_t  *bitmap;

    if(unlikely(pbitmap->handle == 0))

        return -1;

    bitmap = (bitmap_t*)hman_get_data(&bm_man, pbitmap->handle);

    if(unlikely(bitmap==NULL))

        return -1;

    ret = gem_object_lock(bitmap->obj);

    if(ret !=0 )

    {

        pbitmap->data  = NULL;

        pbitmap->pitch = 0;

        dbgprintf("%s fail\n", __FUNCTION__);

        return ret;

    };

    pbitmap->data  = bitmap->uaddr;

    pbitmap->pitch = bitmap->pitch;