Re: [PATCH 2/2] remoteproc: add support to handle internal memories

From: Ohad Ben-Cohen
Date: Tue Sep 23 2014 - 10:16:53 EST


Hi Suman,

On Mon, Sep 15, 2014 at 10:39 PM, Suman Anna <s-anna@xxxxxx> wrote:
> These processors need to use their internal RAM for loading, which is
> not for generic usage by the kernel, so defining a CMA block for this
> memory doesn't make sense.

Ok - so just to make sure I understand, this is physical memory you
want to use, which belongs to the remote processor, and which isn't
mapped normally by the kernel?

> Will it suffice to replace the memcpy() with memcpy_toio()?

Yes, memcpy_toio should be fine (and then you don't need to cast the
cookie returned by ioremap).

Thanks,
Ohad.
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