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Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma

From Jon Hunter <jonathanh@nvidia.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma
Date 2016-09-06 13:40 +0200
Message-ID <semTn-1nX-3@gated-at.bofh.it> (permalink)
References <sd7a1-6x6-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 03/09/16 01:32, Nicolin Chen wrote:
> This series of patches add memcpy support for tegra210 ADMA engine.

Thanks. Any reason you choose this DMA and not the APB DMA? The APB DMA
is more of a generic DMA and so for memcpy it would seem to be a good
choice and it is available on all Tegras not just Tegra210.

Furthermore, from a power standpoint the ADMA is in the audio power
domain and so using it for memcpy would mean the audio power domain is
turned on. It may not be a big deal for some, but given the APB is in
the CORE domain (always on when not in low-power) it seems like a better
choice for power as well.

Cheers
Jon

-- 
nvpublic

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Thread

[PATCH v2 0/2] Add memcpy support for tegra210-adma Nicolin Chen <nicoleotsuka@gmail.com> - 2016-09-03 02:40 +0200
  [PATCH v2 1/2] dmaengine: tegra210-adma: Add pre-check for cyclic callback Nicolin Chen <nicoleotsuka@gmail.com> - 2016-09-03 02:40 +0200
  Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma Jon Hunter <jonathanh@nvidia.com> - 2016-09-06 13:40 +0200
    Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma Dmitry Osipenko <digetx@gmail.com> - 2016-09-06 14:10 +0200
      Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma Jon Hunter <jonathanh@nvidia.com> - 2016-09-06 15:10 +0200
        Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma Jon Hunter <jonathanh@nvidia.com> - 2016-09-06 15:50 +0200
          Re: [PATCH v2 0/2] Add memcpy support for tegra210-adma Dmitry Osipenko <digetx@gmail.com> - 2016-09-06 16:30 +0200

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