linux-kernel - Re: DMA mapping API for non-system memory pools

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Message-ID: <7579f7fb0702091554v3dbd5ae9ldcddcc4cca549548@mail.gmail.com>
Date:	Fri, 9 Feb 2007 15:54:29 -0800
From:	"Matthew Jacob" <lydianconcepts@...il.com>
To:	"Kumar Gala" <galak@...nel.crashing.org>
Cc:	"Russell King" <rmk@....linux.org.uk>,
	"James Bottomley" <James.Bottomley@...senpartnership.com>,
	"Linux Kernel list" <linux-kernel@...r.kernel.org>
Subject: Re: DMA mapping API for non-system memory pools

Yes- this would be interesting to know wrt to doing things like
PCI<>PCI xfers (e.g., for things like the Micromemory NVRAM card).

On 2/9/07, Kumar Gala <galak@...nel.crashing.org> wrote:
> We've been having a discussion on the linuxppc-dev list about how to
> handle IO memory that exists on some PPC SoC devices.  These IO
> memories behave like system memory but are faster to the processor or
> device needed accessing for things like buffer descriptors.
>
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