SVGA3dCmdSurfaceDMA
SVGA3dCmdSurfaceDMA dma;
box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceDMA);
SVGA3dCmdSurfaceDMA body;
SVGA3dCmdSurfaceDMA *body = &cmd->body;