经过阅读源码,其实(shi)不少思路(lu)和Android的匿(ni)名(ming)内存有点相似阅读本文之前(qian)就算不知(zhi)道dma_buf的设计思(si)想(xiang)也没关系,我(wo)不(bu)会仔细(xi)到每一行,我会注(zhu)重(chong)其在gralloc服务(wu)中(zhong)的申(shen)请流程(cheng),看(kan)看ion是如何管理共(gong)享内存,为(wei)什么要(yao)抛弃ashmem我们
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