Re: [PATCH 10/18] dmaengine/amba-pl08x: Get rid of pl08x_pre_boundary()

[viresh kumar]

On 7/29/11, Koul, Vinod <vinod.koul@xxxxxxxxx> wrote:
> On Fri, 2011-07-29 at 12:05 +0100, Russell King - ARM Linux wrote:
>> On Fri, Jul 29, 2011 at 04:19:20PM +0530, Viresh Kumar wrote:
> Typically in few dmac IPs i know of:
> There is max limitation of what a burst length can be for dma, and what
> a max transfer length can be.
> The dma will push/pull data into peripheral FIFO based on
> max_burst_length parameter (note length in dma terminology is always
> items not bytes, and one item is usually defined as
> transfer_length/src_width). For a transfer (single block or in
> multi-block) the dmac will break the transaction into multiple bursts
> and based on max_burst_length it will push/pull data to/from FIFO. Also
> matching FIFO thresholds with max_burst_length is also important and can
> be tuned based on perf/power requirements.
>
> Sharing my knowledge, hopefully it helps :)
>

Thanks. It was indeed helpful. :)

--
viresh
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