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我在processors.wiki.ti.com/.../Linux_IPC_on_AM57xx
dsp1_cma_pool: dsp1_cma@99000000 { compatible = "shared-dma-pool"; reg = <0x0 0x99000000 0x0 0x4000000>; reusable; status = "okay"; }; dsp2_cma_pool: dsp2_cma@9f000000 { compatible = "shared-dma-pool"; reg = <0x0 0x9f000000 0x0 0x800000>; reusable; status = "okay"; }; };
请问这里的DSP内存是和ARM共享的内存吗?我想基于LINUX下的ex02_messageq写一个双核处理程序,
ARM端传入图片给DSP处理,需要DSP的内存大概是40MB,我的设想是如果这里0x99000000 开始如果
是共享内存,直接将图片加载到该段地址内,然后由DSP处理,所以想知道这段是否是共享内存?
另外,DSP2的内存这里显示只有8MB,我需要在哪些文件修改这个参数才能扩展DSP2的内存呢?