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各位大侠，请问DM8148 RDK 3.5中，m3如何与dsp进行通信，如何共享缓冲区？
通信是基于IPC/SYSLINK的，建立ipc link来传递消息、命令
核之间有SharedRegion可以交换数据。
请参照 mcfw\src_linux\mcfw_api\usecases\ti814x\multich_progressive_4d1_vcap_venc_vdec_vdis.c
