Re: [PATCH v1] dmaengine: tegra: Use relaxed versions of readl/writel

Vinod Koul
2019-04-26T12:47:57Z

On 26-04-19, 15:19, Dmitry Osipenko wrote:
> 26.04.2019 15:01, Vinod Koul пишет:
> > On 25-04-19, 02:17, Dmitry Osipenko wrote:
> >> The readl/writel functions are inserting memory barrier in order to
> >> ensure that memory stores are completed. On Tegra20 and Tegra30 this
> >> results in L2 cache syncing which isn't a cheapest operation. The
> >> tegra20-apb-dma driver doesn't need to synchronize generic memory
> >> accesses, hence use the relaxed versions of the functions.
> >
> > Subsystem name is **dmaengine** not dma! Please fix that
> >
>
> Looks like you answered to a wrong email.

Yes looks like I did, apologies for that :(

--
~Vinod