经过(guo)阅(yue)读源(yuan)码,其实不少思路(lu)和Android的匿名内存有点相(xiang)似阅读(du)本(ben)文之前就(jiu)算不知(zhi)道dma_buf的设计思想也没关(guan)系,我不(bu)会(hui)仔细到每一行,我(wo)会注重其在gralloc服务中(zhong)的申(shen)请流程,看(kan)看ion是如何管(guan)理共(gong)享内存,为(wei)什么要(yao)抛弃(qi)ashmem我们
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