经过阅(yuè )读源码,其(qí )实(shí )不(bú )少(shǎo )思路和(hé )Android的(de )匿名内存有点(diǎn )相似阅读本文之前就算不知道dma_buf的设计(jì )思(sī )想(xiǎng )也没(méi )关系(xì ),我不(bú )会仔(zǎi )细到每一(yī )行(háng ),我(wǒ )会注重其在gralloc服(fú )务中的申请(qǐng )流程,看看(kàn )ion是(shì )如(rú )何管(guǎn )理(lǐ )共享内存(cún ),为什么要抛(pāo )弃ashmem我们
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