On Mon, 2015-11-16 at 21:53 +0000, Sinan Kaya wrote: > One of the things I'm interested in is to use a memcpy capable DMA > engine HW to optimize user space and kernel space parameter copying. Have you looked at why NET_DMA was deprecated and using DMA engine to do kernel->user copy could be a problem? https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ ?id=77873803363c > > Of course, this will not be viable for all parameter sizes but I can > see > this being useful. The goal is to save power in the cost of little > performance. > > Before I go and invent my own mechanism, I'd like to have ideas on > what > an acceptable solution would look like. Especially, I'm looking for a > generic implementation that could plug into any DMA engine HW. > > -- > Sinan Kaya > Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, > Inc. > Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a > Linux Foundation Collaborative Project > -- > To unsubscribe from this list: send the line "unsubscribe dmaengine" > in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html��.n��������+%����;��w��{.n��������)�)�� jg��� �����ݢj����G���� ���j:+v���w�m������w�������h�����٥
