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[RFC] User space to kernel space copy optimization

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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.

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
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[RFC] User space to kernel space copy optimization Sinan Kaya <okaya@codeaurora.org> - 2015-11-16 23:00 +0100
  Re: [RFC] User space to kernel space copy optimization "Jiang, Dave" <dave.jiang@intel.com> - 2015-11-17 00:00 +0100
    Re: [RFC] User space to kernel space copy optimization Sinan Kaya <okaya@codeaurora.org> - 2015-11-17 00:20 +0100
      Re: [RFC] User space to kernel space copy optimization "Jiang, Dave" <dave.jiang@intel.com> - 2015-11-17 20:30 +0100

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