经(jing)过(guo)阅(yue)读(du)源码,其实(shi)不少(shao)思路和Android的匿名(ming)内存有点相(xiang)似阅(yue)读本(ben)文之前就算不知(zhi)道dma_buf的设计思想也没关系,我不会仔细到(dao)每一行,我会注重(chong)其在gralloc服(fu)务中(zhong)的申(shen)请(qing)流程,看(kan)看ion是(shi)如何管理共(gong)享(xiang)内存,为(wei)什么要抛弃ashmem我们
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