[PATCH] dmaengine: omap-dma: Enable burst and data pack for SG

Vinod Koul vinod.koul at intel.com
Fri Sep 30 23:05:45 PDT 2016


On Fri, Sep 16, 2016 at 01:53:15PM +0300, Peter Ujfalusi wrote:
> From: Misael Lopez Cruz <misael.lopez at ti.com>
> 
> Enable the burst and data pack modes for the scatter-gather
> in order to improve the throughput of the data transfers.
> 
> The improvement has been verified with MMC HS200 mode in
> the DRA72 EVM using the iozone tool to compare the read
> throughput (in kB/s) with and without burst/pack for
> different reclens (in kB).
> 
>                               With
>     reclen    Baseline   sDMA burst/pack
>     ------    --------   ---------------
>        64       46568         50820
>       128       57564         63413
>       256       65634         74937
>       512       72427         83483
>      1024       74563         84504
>      2048       76265         86079
>      4096       78045         87335
>      8192       78989         88154
>     16384       81265         91034

Applied, thanks

-- 
~Vinod



More information about the linux-arm-kernel mailing list