经过阅读源码,其实(shi)不少思路和Android的匿名内存有点相(xiang)似(si)阅读本文之前就算不知道dma_buf的设(she)计(ji)思想(xiang)也没关系,我(wo)不(bu)会(hui)仔(zai)细到每一(yi)行,我会注重(chong)其在gralloc服(fu)务中(zhong)的申请流程,看看(kan)ion是如何管(guan)理共(gong)享内存(cun),为什(shi)么要抛(pao)弃(qi)ashmem我(wo)们(men)
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