BAUMER GCM2W.Z01 如前文所說，如果是嵌入式或某些對軟件生態沒有那么高要求的場景，RISC-V絕對是一個好選擇。
來到手機市場，如果你在2019年五月之前問過這個問題，絕對是否定的，因為從當前的全球芯片格局和手機芯片的產業鏈看，沒有任何必要。
但在現在看來，行業有人探索RISC-V在手機處理器上的應用，這是有其客觀原因影響的。其中一個歸咎于美國掀起的地緣政治斗爭。
2019年五月，美國將華為加入了黑名單，并在接下來的一年多的時間里升級其限制，這就讓華為難以獲得美國的先進產品和技術，在手機芯片方面也不例外。和其他所有手機芯片廠商一樣，華為的Kirin系列芯片同樣是用的是Arm的CPU和GPU。
例如在華為最新的Kirin9000上，他們就分別采用了Arm的Cortex-A77CPU和Mai-G78GPU。換而言之，華為在最新的旗艦上采用了Arm上一代的CPU和最新的GPU。雖然華為和Arm雙方都曾強調過，雙方的合作不受美國禁令影響，但有行業人士在與筆者聊天的時候曾指出，Cortex-A78應該是由Arm美國奧斯汀團隊研發，而Mali-G78應該是在歐洲研發的。
從某種程度上，這就可以解析了華為在Kirin9000上沒有用上Cortex-A78或者Cortex-X1的原因。
也就是說，對于華為而言，在當前的局面下，他們有充分的理由去研發基于RISC-V的手機處理器，加上他們正在打造鴻蒙系統，這就讓這一切變得相對更容易。
正如蘋果在用于Macbook的Arm處理器M1上的旗開得勝，以及他們之前從IBMPower處理器轉到Intel處理器上的成功證明了一個事實——掌控了自己的軟硬件，才有更強大的話語權。無論是對供應商還是。
上述關于華為的假設是建立在華為還能繼續生存下去，并且還會繼續推進手機業務的基礎之上。而接下來談到的Nvidia收購Arm，無疑就給RISC-V進入手機插上了騰飛的翅膀。
2020年是半導體一個并購大年，其中英偉達收購Arm無疑是其中影響力的一個。semiaccurate在去年十月的報道中也指出，一家業內主要的手機SoC供應商告訴他們，無論這個交易是否獲得批準，他們制造RISC-VSoC的計劃都在向前發展。
據報道，其實在英偉達宣布收購Arm之前，該廠商已經進行了約一年的RISC-V手機SoC的研發。
在上個月中，也有報道指出，手機芯片龍頭高通已經向美國聯邦貿易、歐盟、英國競爭與市場管理局以及中國國家市場監管局表達了對英偉達收購Arm交易的擔憂。
根據報道，高通之所以反對這單交易，是因為他們認為如果英偉達成功收購了Arm，他們就有可能阻止其他芯片制造商使用Arm的IP。當然，英偉達黃仁勛一直強調他們即使收購成功，他們還是會保持中立。
然而高通的擔憂正是手機SoC領域從業者的擔憂。
BAUMER GCM2W.Z01
BAUMER GCM2W.Z01
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