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    SubjectRe: [RFC][PATCH 000 of 3] MD Acceleration and the ADMA interface: Introduction
    On Fri, 3 Feb 2006, Pierre Ossman wrote:

    > Dan Williams wrote:
    > >
    > > The ADMA (Asynchronous / Application Specific DMA) interface is proposed
    > > as a cross platform mechanism for supporting system CPU offload engines.
    > > The goal is to provide a unified asynchronous interface to support
    > > memory copies, block xor, block pattern setting, block compare, CRC
    > > calculation, cryptography etc. The ADMA interface should support a PIO
    > > fallback mode allowing a given ADMA engine implementation to use the
    > > system CPU for operations without a hardware accelerated backend. In
    > > other words a client coded to the ADMA interface transparently receives
    > > hardware acceleration for its operations depending on the features of
    > > the underlying platform.
    > >
    > I'm wondering, how common is this ADMA acronym? I've been writing a MMC
    > driver for some hardware where specifications aren't available. I have
    > found one document which list an "ADMA system address" register, with a
    > width of 64 bits. What are the odds of this being something that
    > conforms to said interface?

    oh dear, i thought it was either Advanced or Accelerated DMA, fwiw.

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