经过(guo)阅读(du)源(yuan)码,其(qi)实不少(shao)思路(lu)和Android的匿名内存有点相似阅(yue)读本文之前(qian)就算不知道dma_buf的设计思想也没关(guan)系(xi),我不(bu)会仔细到每(mei)一(yi)行,我会注重其在gralloc服务中(zhong)的申(shen)请流程,看看ion是(shi)如(ru)何(he)管(guan)理共(gong)享(xiang)内(nei)存,为(wei)什么要抛弃ashmem我们
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