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AM625: m4核与arm之间的通信问题

Part Number: AM625

现在有个需求是AM6231想要m核和a核通过内存做数据交换,就是将数据存入内存中,想请问下有没有什么接口可以直接访问内存或者这样子去实现呢?是否支持内存映射还有mmap接口的?是否有相关资料可参考?