经过(guo)阅读(du)源码,其实(shi)不少思路和Android的匿名内存(cun)有点相(xiang)似阅读(du)本文之前(qian)就算(suan)不知(zhi)道dma_buf的设计思想(xiang)也没(mei)关系,我不(bu)会仔(zai)细到(dao)每一行,我会注重其(qi)在gralloc服务中(zhong)的申请(qing)流程,看(kan)看ion是(shi)如何管理共(gong)享内(nei)存,为什(shi)么要抛弃(qi)ashmem我们
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