经(jing)过(guo)阅读源(yuan)码,其(qi)实不少思路和(he)Android的匿(ni)名内存有点相似阅(yue)读本文之前(qian)就算(suan)不(bu)知道dma_buf的设计(ji)思想也没关系(xi),我不(bu)会(hui)仔细到每一行,我(wo)会注重其在gralloc服务中(zhong)的申请流程,看(kan)看ion是如(ru)何管(guan)理共(gong)享内存,为什(shi)么要抛(pao)弃ashmem我们
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